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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
/*
* NPORT
*
* Port object for physical port and NPIV ports.
*/
/*
* NPORT REFERENCE COUNTING
*
* A nport reference should be taken when:
* - an nport is allocated
* - a vport populates associated nport
* - a remote node is allocated
* - a unsolicited frame is processed
* The reference should be dropped when:
* - the unsolicited frame processesing is done
* - the remote node is removed
* - the vport is removed
* - the nport is removed
*/
#include "efc.h"
void
efc_nport_cb(void *arg, int event, void *data)
{
struct efc *efc = arg;
struct efc_nport *nport = data;
unsigned long flags = 0;
efc_log_debug(efc, "nport event: %s\n", efc_sm_event_name(event));
spin_lock_irqsave(&efc->lock, flags);
efc_sm_post_event(&nport->sm, event, NULL);
spin_unlock_irqrestore(&efc->lock, flags);
}
static struct efc_nport *
efc_nport_find_wwn(struct efc_domain *domain, uint64_t wwnn, uint64_t wwpn)
{
struct efc_nport *nport = NULL;
/* Find a nport, given the WWNN and WWPN */
list_for_each_entry(nport, &domain->nport_list, list_entry) {
if (nport->wwnn == wwnn && nport->wwpn == wwpn)
return nport;
}
return NULL;
}
static void
_efc_nport_free(struct kref *arg)
{
struct efc_nport *nport = container_of(arg, struct efc_nport, ref);
kfree(nport);
}
struct efc_nport *
efc_nport_alloc(struct efc_domain *domain, uint64_t wwpn, uint64_t wwnn,
u32 fc_id, bool enable_ini, bool enable_tgt)
{
struct efc_nport *nport;
if (domain->efc->enable_ini)
enable_ini = 0;
/* Return a failure if this nport has already been allocated */
if ((wwpn != 0) || (wwnn != 0)) {
nport = efc_nport_find_wwn(domain, wwnn, wwpn);
if (nport) {
efc_log_err(domain->efc,
"NPORT %016llX %016llX already allocated\n",
wwnn, wwpn);
return NULL;
}
}
nport = kzalloc(sizeof(*nport), GFP_ATOMIC);
if (!nport)
return nport;
/* initialize refcount */
kref_init(&nport->ref);
nport->release = _efc_nport_free;
nport->efc = domain->efc;
snprintf(nport->display_name, sizeof(nport->display_name), "------");
nport->domain = domain;
xa_init(&nport->lookup);
nport->instance_index = domain->nport_count++;
nport->sm.app = nport;
nport->enable_ini = enable_ini;
nport->enable_tgt = enable_tgt;
nport->enable_rscn = (nport->enable_ini ||
(nport->enable_tgt && enable_target_rscn(nport->efc)));
/* Copy service parameters from domain */
memcpy(nport->service_params, domain->service_params,
sizeof(struct fc_els_flogi));
/* Update requested fc_id */
nport->fc_id = fc_id;
/* Update the nport's service parameters for the new wwn's */
nport->wwpn = wwpn;
nport->wwnn = wwnn;
snprintf(nport->wwnn_str, sizeof(nport->wwnn_str), "%016llX",
(unsigned long long)wwnn);
/*
* if this is the "first" nport of the domain,
* then make it the "phys" nport
*/
if (list_empty(&domain->nport_list))
domain->nport = nport;
INIT_LIST_HEAD(&nport->list_entry);
list_add_tail(&nport->list_entry, &domain->nport_list);
kref_get(&domain->ref);
efc_log_debug(domain->efc, "New Nport [%s]\n", nport->display_name);
return nport;
}
void
efc_nport_free(struct efc_nport *nport)
{
struct efc_domain *domain;
if (!nport)
return;
domain = nport->domain;
efc_log_debug(domain->efc, "[%s] free nport\n", nport->display_name);
list_del(&nport->list_entry);
/*
* if this is the physical nport,
* then clear it out of the domain
*/
if (nport == domain->nport)
domain->nport = NULL;
xa_destroy(&nport->lookup);
xa_erase(&domain->lookup, nport->fc_id);
if (list_empty(&domain->nport_list))
efc_domain_post_event(domain, EFC_EVT_ALL_CHILD_NODES_FREE,
NULL);
kref_put(&domain->ref, domain->release);
kref_put(&nport->ref, nport->release);
}
struct efc_nport *
efc_nport_find(struct efc_domain *domain, u32 d_id)
{
struct efc_nport *nport;
/* Find a nport object, given an FC_ID */
nport = xa_load(&domain->lookup, d_id);
if (!nport || !kref_get_unless_zero(&nport->ref))
return NULL;
return nport;
}
int
efc_nport_attach(struct efc_nport *nport, u32 fc_id)
{
int rc;
struct efc_node *node;
struct efc *efc = nport->efc;
unsigned long index;
/* Set our lookup */
rc = xa_err(xa_store(&nport->domain->lookup, fc_id, nport, GFP_ATOMIC));
if (rc) {
efc_log_err(efc, "Sport lookup store failed: %d\n", rc);
return rc;
}
/* Update our display_name */
efc_node_fcid_display(fc_id, nport->display_name,
sizeof(nport->display_name));
xa_for_each(&nport->lookup, index, node) {
efc_node_update_display_name(node);
}
efc_log_debug(nport->efc, "[%s] attach nport: fc_id x%06x\n",
nport->display_name, fc_id);
/* Register a nport, given an FC_ID */
rc = efc_cmd_nport_attach(efc, nport, fc_id);
if (rc < 0) {
efc_log_err(nport->efc,
"efc_hw_port_attach failed: %d\n", rc);
return -EIO;
}
return 0;
}
static void
efc_nport_shutdown(struct efc_nport *nport)
{
struct efc *efc = nport->efc;
struct efc_node *node;
unsigned long index;
xa_for_each(&nport->lookup, index, node) {
if (!(node->rnode.fc_id == FC_FID_FLOGI && nport->is_vport)) {
efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
continue;
}
/*
* If this is a vport, logout of the fabric
* controller so that it deletes the vport
* on the switch.
*/
/* if link is down, don't send logo */
if (efc->link_status == EFC_LINK_STATUS_DOWN) {
efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
continue;
}
efc_log_debug(efc, "[%s] nport shutdown vport, send logo\n",
node->display_name);
if (!efc_send_logo(node)) {
/* sent LOGO, wait for response */
efc_node_transition(node, __efc_d_wait_logo_rsp, NULL);
continue;
}
/*
* failed to send LOGO,
* go ahead and cleanup node anyways
*/
node_printf(node, "Failed to send LOGO\n");
efc_node_post_event(node, EFC_EVT_SHUTDOWN_EXPLICIT_LOGO, NULL);
}
}
static void
efc_vport_link_down(struct efc_nport *nport)
{
struct efc *efc = nport->efc;
struct efc_vport *vport;
/* Clear the nport reference in the vport specification */
list_for_each_entry(vport, &efc->vport_list, list_entry) {
if (vport->nport == nport) {
kref_put(&nport->ref, nport->release);
vport->nport = NULL;
break;
}
}
}
static void
__efc_nport_common(const char *funcname, struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_nport *nport = ctx->app;
struct efc_domain *domain = nport->domain;
struct efc *efc = nport->efc;
switch (evt) {
case EFC_EVT_ENTER:
case EFC_EVT_REENTER:
case EFC_EVT_EXIT:
case EFC_EVT_ALL_CHILD_NODES_FREE:
break;
case EFC_EVT_NPORT_ATTACH_OK:
efc_sm_transition(ctx, __efc_nport_attached, NULL);
break;
case EFC_EVT_SHUTDOWN:
/* Flag this nport as shutting down */
nport->shutting_down = true;
if (nport->is_vport)
efc_vport_link_down(nport);
if (xa_empty(&nport->lookup)) {
/* Remove the nport from the domain's lookup table */
xa_erase(&domain->lookup, nport->fc_id);
efc_sm_transition(ctx, __efc_nport_wait_port_free,
NULL);
if (efc_cmd_nport_free(efc, nport)) {
efc_log_debug(nport->efc,
"efc_hw_port_free failed\n");
/* Not much we can do, free the nport anyways */
efc_nport_free(nport);
}
} else {
/* sm: node list is not empty / shutdown nodes */
efc_sm_transition(ctx,
__efc_nport_wait_shutdown, NULL);
efc_nport_shutdown(nport);
}
break;
default:
efc_log_debug(nport->efc, "[%s] %-20s %-20s not handled\n",
nport->display_name, funcname,
efc_sm_event_name(evt));
}
}
void
__efc_nport_allocated(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_nport *nport = ctx->app;
struct efc_domain *domain = nport->domain;
nport_sm_trace(nport);
switch (evt) {
/* the physical nport is attached */
case EFC_EVT_NPORT_ATTACH_OK:
WARN_ON(nport != domain->nport);
efc_sm_transition(ctx, __efc_nport_attached, NULL);
break;
case EFC_EVT_NPORT_ALLOC_OK:
/* ignore */
break;
default:
__efc_nport_common(__func__, ctx, evt, arg);
}
}
void
__efc_nport_vport_init(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_nport *nport = ctx->app;
struct efc *efc = nport->efc;
nport_sm_trace(nport);
switch (evt) {
case EFC_EVT_ENTER: {
__be64 be_wwpn = cpu_to_be64(nport->wwpn);
if (nport->wwpn == 0)
efc_log_debug(efc, "vport: letting f/w select WWN\n");
if (nport->fc_id != U32_MAX) {
efc_log_debug(efc, "vport: hard coding port id: %x\n",
nport->fc_id);
}
efc_sm_transition(ctx, __efc_nport_vport_wait_alloc, NULL);
/* If wwpn is zero, then we'll let the f/w assign wwpn*/
if (efc_cmd_nport_alloc(efc, nport, nport->domain,
nport->wwpn == 0 ? NULL :
(uint8_t *)&be_wwpn)) {
efc_log_err(efc, "Can't allocate port\n");
break;
}
break;
}
default:
__efc_nport_common(__func__, ctx, evt, arg);
}
}
void
__efc_nport_vport_wait_alloc(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_nport *nport = ctx->app;
struct efc *efc = nport->efc;
nport_sm_trace(nport);
switch (evt) {
case EFC_EVT_NPORT_ALLOC_OK: {
struct fc_els_flogi *sp;
sp = (struct fc_els_flogi *)nport->service_params;
if (nport->wwnn == 0) {
nport->wwnn = be64_to_cpu(nport->sli_wwnn);
nport->wwpn = be64_to_cpu(nport->sli_wwpn);
snprintf(nport->wwnn_str, sizeof(nport->wwnn_str),
"%016llX", nport->wwpn);
}
/* Update the nport's service parameters */
sp->fl_wwpn = cpu_to_be64(nport->wwpn);
sp->fl_wwnn = cpu_to_be64(nport->wwnn);
/*
* if nport->fc_id is uninitialized,
* then request that the fabric node use FDISC
* to find an fc_id.
* Otherwise we're restoring vports, or we're in
* fabric emulation mode, so attach the fc_id
*/
if (nport->fc_id == U32_MAX) {
struct efc_node *fabric;
fabric = efc_node_alloc(nport, FC_FID_FLOGI, false,
false);
if (!fabric) {
efc_log_err(efc, "efc_node_alloc() failed\n");
return;
}
efc_node_transition(fabric, __efc_vport_fabric_init,
NULL);
} else {
snprintf(nport->wwnn_str, sizeof(nport->wwnn_str),
"%016llX", nport->wwpn);
efc_nport_attach(nport, nport->fc_id);
}
efc_sm_transition(ctx, __efc_nport_vport_allocated, NULL);
break;
}
default:
__efc_nport_common(__func__, ctx, evt, arg);
}
}
void
__efc_nport_vport_allocated(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_nport *nport = ctx->app;
struct efc *efc = nport->efc;
nport_sm_trace(nport);
/*
* This state is entered after the nport is allocated;
* it then waits for a fabric node
* FDISC to complete, which requests a nport attach.
* The nport attach complete is handled in this state.
*/
switch (evt) {
case EFC_EVT_NPORT_ATTACH_OK: {
struct efc_node *node;
/* Find our fabric node, and forward this event */
node = efc_node_find(nport, FC_FID_FLOGI);
if (!node) {
efc_log_debug(efc, "can't find node %06x\n", FC_FID_FLOGI);
break;
}
/* sm: / forward nport attach to fabric node */
efc_node_post_event(node, evt, NULL);
efc_sm_transition(ctx, __efc_nport_attached, NULL);
break;
}
default:
__efc_nport_common(__func__, ctx, evt, arg);
}
}
static void
efc_vport_update_spec(struct efc_nport *nport)
{
struct efc *efc = nport->efc;
struct efc_vport *vport;
unsigned long flags = 0;
spin_lock_irqsave(&efc->vport_lock, flags);
list_for_each_entry(vport, &efc->vport_list, list_entry) {
if (vport->nport == nport) {
vport->wwnn = nport->wwnn;
vport->wwpn = nport->wwpn;
vport->tgt_data = nport->tgt_data;
vport->ini_data = nport->ini_data;
break;
}
}
spin_unlock_irqrestore(&efc->vport_lock, flags);
}
void
__efc_nport_attached(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_nport *nport = ctx->app;
struct efc *efc = nport->efc;
nport_sm_trace(nport);
switch (evt) {
case EFC_EVT_ENTER: {
struct efc_node *node;
unsigned long index;
efc_log_debug(efc,
"[%s] NPORT attached WWPN %016llX WWNN %016llX\n",
nport->display_name,
nport->wwpn, nport->wwnn);
xa_for_each(&nport->lookup, index, node)
efc_node_update_display_name(node);
efc->tt.new_nport(efc, nport);
/*
* Update the vport (if its not the physical nport)
* parameters
*/
if (nport->is_vport)
efc_vport_update_spec(nport);
break;
}
case EFC_EVT_EXIT:
efc_log_debug(efc,
"[%s] NPORT deattached WWPN %016llX WWNN %016llX\n",
nport->display_name,
nport->wwpn, nport->wwnn);
efc->tt.del_nport(efc, nport);
break;
default:
__efc_nport_common(__func__, ctx, evt, arg);
}
}
void
__efc_nport_wait_shutdown(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_nport *nport = ctx->app;
struct efc_domain *domain = nport->domain;
struct efc *efc = nport->efc;
nport_sm_trace(nport);
switch (evt) {
case EFC_EVT_NPORT_ALLOC_OK:
case EFC_EVT_NPORT_ALLOC_FAIL:
case EFC_EVT_NPORT_ATTACH_OK:
case EFC_EVT_NPORT_ATTACH_FAIL:
/* ignore these events - just wait for the all free event */
break;
case EFC_EVT_ALL_CHILD_NODES_FREE: {
/*
* Remove the nport from the domain's
* sparse vector lookup table
*/
xa_erase(&domain->lookup, nport->fc_id);
efc_sm_transition(ctx, __efc_nport_wait_port_free, NULL);
if (efc_cmd_nport_free(efc, nport)) {
efc_log_err(nport->efc, "efc_hw_port_free failed\n");
/* Not much we can do, free the nport anyways */
efc_nport_free(nport);
}
break;
}
default:
__efc_nport_common(__func__, ctx, evt, arg);
}
}
void
__efc_nport_wait_port_free(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_nport *nport = ctx->app;
nport_sm_trace(nport);
switch (evt) {
case EFC_EVT_NPORT_ATTACH_OK:
/* Ignore as we are waiting for the free CB */
break;
case EFC_EVT_NPORT_FREE_OK: {
/* All done, free myself */
efc_nport_free(nport);
break;
}
default:
__efc_nport_common(__func__, ctx, evt, arg);
}
}
static int
efc_vport_nport_alloc(struct efc_domain *domain, struct efc_vport *vport)
{
struct efc_nport *nport;
lockdep_assert_held(&domain->efc->lock);
nport = efc_nport_alloc(domain, vport->wwpn, vport->wwnn, vport->fc_id,
vport->enable_ini, vport->enable_tgt);
vport->nport = nport;
if (!nport)
return -EIO;
kref_get(&nport->ref);
nport->is_vport = true;
nport->tgt_data = vport->tgt_data;
nport->ini_data = vport->ini_data;
efc_sm_transition(&nport->sm, __efc_nport_vport_init, NULL);
return 0;
}
int
efc_vport_start(struct efc_domain *domain)
{
struct efc *efc = domain->efc;
struct efc_vport *vport;
struct efc_vport *next;
int rc = 0;
unsigned long flags = 0;
/* Use the vport spec to find the associated vports and start them */
spin_lock_irqsave(&efc->vport_lock, flags);
list_for_each_entry_safe(vport, next, &efc->vport_list, list_entry) {
if (!vport->nport) {
if (efc_vport_nport_alloc(domain, vport))
rc = -EIO;
}
}
spin_unlock_irqrestore(&efc->vport_lock, flags);
return rc;
}
int
efc_nport_vport_new(struct efc_domain *domain, uint64_t wwpn, uint64_t wwnn,
u32 fc_id, bool ini, bool tgt, void *tgt_data,
void *ini_data)
{
struct efc *efc = domain->efc;
struct efc_vport *vport;
int rc = 0;
unsigned long flags = 0;
if (ini && domain->efc->enable_ini == 0) {
efc_log_debug(efc, "driver initiator mode not enabled\n");
return -EIO;
}
if (tgt && domain->efc->enable_tgt == 0) {
efc_log_debug(efc, "driver target mode not enabled\n");
return -EIO;
}
/*
* Create a vport spec if we need to recreate
* this vport after a link up event
*/
vport = efc_vport_create_spec(domain->efc, wwnn, wwpn, fc_id, ini, tgt,
tgt_data, ini_data);
if (!vport) {
efc_log_err(efc, "failed to create vport object entry\n");
return -EIO;
}
spin_lock_irqsave(&efc->lock, flags);
rc = efc_vport_nport_alloc(domain, vport);
spin_unlock_irqrestore(&efc->lock, flags);
return rc;
}
int
efc_nport_vport_del(struct efc *efc, struct efc_domain *domain,
u64 wwpn, uint64_t wwnn)
{
struct efc_nport *nport;
struct efc_vport *vport;
struct efc_vport *next;
unsigned long flags = 0;
spin_lock_irqsave(&efc->vport_lock, flags);
/* walk the efc_vport_list and remove from there */
list_for_each_entry_safe(vport, next, &efc->vport_list, list_entry) {
if (vport->wwpn == wwpn && vport->wwnn == wwnn) {
list_del(&vport->list_entry);
kfree(vport);
break;
}
}
spin_unlock_irqrestore(&efc->vport_lock, flags);
if (!domain) {
/* No domain means no nport to look for */
return 0;
}
spin_lock_irqsave(&efc->lock, flags);
list_for_each_entry(nport, &domain->nport_list, list_entry) {
if (nport->wwpn == wwpn && nport->wwnn == wwnn) {
kref_put(&nport->ref, nport->release);
/* Shutdown this NPORT */
efc_sm_post_event(&nport->sm, EFC_EVT_SHUTDOWN, NULL);
break;
}
}
spin_unlock_irqrestore(&efc->lock, flags);
return 0;
}
void
efc_vport_del_all(struct efc *efc)
{
struct efc_vport *vport;
struct efc_vport *next;
unsigned long flags = 0;
spin_lock_irqsave(&efc->vport_lock, flags);
list_for_each_entry_safe(vport, next, &efc->vport_list, list_entry) {
list_del(&vport->list_entry);
kfree(vport);
}
spin_unlock_irqrestore(&efc->vport_lock, flags);
}
struct efc_vport *
efc_vport_create_spec(struct efc *efc, uint64_t wwnn, uint64_t wwpn,
u32 fc_id, bool enable_ini,
bool enable_tgt, void *tgt_data, void *ini_data)
{
struct efc_vport *vport;
unsigned long flags = 0;
/*
* walk the efc_vport_list and return failure
* if a valid(vport with non zero WWPN and WWNN) vport entry
* is already created
*/
spin_lock_irqsave(&efc->vport_lock, flags);
list_for_each_entry(vport, &efc->vport_list, list_entry) {
if ((wwpn && vport->wwpn == wwpn) &&
(wwnn && vport->wwnn == wwnn)) {
efc_log_err(efc,
"VPORT %016llX %016llX already allocated\n",
wwnn, wwpn);
spin_unlock_irqrestore(&efc->vport_lock, flags);
return NULL;
}
}
vport = kzalloc(sizeof(*vport), GFP_ATOMIC);
if (!vport) {
spin_unlock_irqrestore(&efc->vport_lock, flags);
return NULL;
}
vport->wwnn = wwnn;
vport->wwpn = wwpn;
vport->fc_id = fc_id;
vport->enable_tgt = enable_tgt;
vport->enable_ini = enable_ini;
vport->tgt_data = tgt_data;
vport->ini_data = ini_data;
INIT_LIST_HEAD(&vport->list_entry);
list_add_tail(&vport->list_entry, &efc->vport_list);
spin_unlock_irqrestore(&efc->vport_lock, flags);
return vport;
}
|
linux-master
|
drivers/scsi/elx/libefc/efc_nport.c
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
/*
* Functions to build and send ELS/CT/BLS commands and responses.
*/
#include "efc.h"
#include "efc_els.h"
#include "../libefc_sli/sli4.h"
#define EFC_LOG_ENABLE_ELS_TRACE(efc) \
(((efc) != NULL) ? (((efc)->logmask & (1U << 1)) != 0) : 0)
#define node_els_trace() \
do { \
if (EFC_LOG_ENABLE_ELS_TRACE(efc)) \
efc_log_info(efc, "[%s] %-20s\n", \
node->display_name, __func__); \
} while (0)
#define els_io_printf(els, fmt, ...) \
efc_log_err((struct efc *)els->node->efc,\
"[%s] %-8s " fmt, \
els->node->display_name,\
els->display_name, ##__VA_ARGS__)
#define EFC_ELS_RSP_LEN 1024
#define EFC_ELS_GID_PT_RSP_LEN 8096
struct efc_els_io_req *
efc_els_io_alloc(struct efc_node *node, u32 reqlen)
{
return efc_els_io_alloc_size(node, reqlen, EFC_ELS_RSP_LEN);
}
struct efc_els_io_req *
efc_els_io_alloc_size(struct efc_node *node, u32 reqlen, u32 rsplen)
{
struct efc *efc;
struct efc_els_io_req *els;
unsigned long flags = 0;
efc = node->efc;
if (!node->els_io_enabled) {
efc_log_err(efc, "els io alloc disabled\n");
return NULL;
}
els = mempool_alloc(efc->els_io_pool, GFP_ATOMIC);
if (!els) {
atomic_add_return(1, &efc->els_io_alloc_failed_count);
return NULL;
}
/* initialize refcount */
kref_init(&els->ref);
els->release = _efc_els_io_free;
/* populate generic io fields */
els->node = node;
/* now allocate DMA for request and response */
els->io.req.size = reqlen;
els->io.req.virt = dma_alloc_coherent(&efc->pci->dev, els->io.req.size,
&els->io.req.phys, GFP_KERNEL);
if (!els->io.req.virt) {
mempool_free(els, efc->els_io_pool);
return NULL;
}
els->io.rsp.size = rsplen;
els->io.rsp.virt = dma_alloc_coherent(&efc->pci->dev, els->io.rsp.size,
&els->io.rsp.phys, GFP_KERNEL);
if (!els->io.rsp.virt) {
dma_free_coherent(&efc->pci->dev, els->io.req.size,
els->io.req.virt, els->io.req.phys);
mempool_free(els, efc->els_io_pool);
els = NULL;
}
if (els) {
/* initialize fields */
els->els_retries_remaining = EFC_FC_ELS_DEFAULT_RETRIES;
/* add els structure to ELS IO list */
INIT_LIST_HEAD(&els->list_entry);
spin_lock_irqsave(&node->els_ios_lock, flags);
list_add_tail(&els->list_entry, &node->els_ios_list);
spin_unlock_irqrestore(&node->els_ios_lock, flags);
}
return els;
}
void
efc_els_io_free(struct efc_els_io_req *els)
{
kref_put(&els->ref, els->release);
}
void
_efc_els_io_free(struct kref *arg)
{
struct efc_els_io_req *els =
container_of(arg, struct efc_els_io_req, ref);
struct efc *efc;
struct efc_node *node;
int send_empty_event = false;
unsigned long flags = 0;
node = els->node;
efc = node->efc;
spin_lock_irqsave(&node->els_ios_lock, flags);
list_del(&els->list_entry);
/* Send list empty event if the IO allocator
* is disabled, and the list is empty
* If node->els_io_enabled was not checked,
* the event would be posted continually
*/
send_empty_event = (!node->els_io_enabled &&
list_empty(&node->els_ios_list));
spin_unlock_irqrestore(&node->els_ios_lock, flags);
/* free ELS request and response buffers */
dma_free_coherent(&efc->pci->dev, els->io.rsp.size,
els->io.rsp.virt, els->io.rsp.phys);
dma_free_coherent(&efc->pci->dev, els->io.req.size,
els->io.req.virt, els->io.req.phys);
mempool_free(els, efc->els_io_pool);
if (send_empty_event)
efc_scsi_io_list_empty(node->efc, node);
}
static void
efc_els_retry(struct efc_els_io_req *els);
static void
efc_els_delay_timer_cb(struct timer_list *t)
{
struct efc_els_io_req *els = from_timer(els, t, delay_timer);
/* Retry delay timer expired, retry the ELS request */
efc_els_retry(els);
}
static int
efc_els_req_cb(void *arg, u32 length, int status, u32 ext_status)
{
struct efc_els_io_req *els;
struct efc_node *node;
struct efc *efc;
struct efc_node_cb cbdata;
u32 reason_code;
els = arg;
node = els->node;
efc = node->efc;
if (status)
els_io_printf(els, "status x%x ext x%x\n", status, ext_status);
/* set the response len element of els->rsp */
els->io.rsp.len = length;
cbdata.status = status;
cbdata.ext_status = ext_status;
cbdata.header = NULL;
cbdata.els_rsp = els->io.rsp;
/* set the response len element of els->rsp */
cbdata.rsp_len = length;
/* FW returns the number of bytes received on the link in
* the WCQE, not the amount placed in the buffer; use this info to
* check if there was an overrun.
*/
if (length > els->io.rsp.size) {
efc_log_warn(efc,
"ELS response returned len=%d > buflen=%zu\n",
length, els->io.rsp.size);
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_REQ_FAIL, &cbdata);
return 0;
}
/* Post event to ELS IO object */
switch (status) {
case SLI4_FC_WCQE_STATUS_SUCCESS:
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_REQ_OK, &cbdata);
break;
case SLI4_FC_WCQE_STATUS_LS_RJT:
reason_code = (ext_status >> 16) & 0xff;
/* delay and retry if reason code is Logical Busy */
switch (reason_code) {
case ELS_RJT_BUSY:
els->node->els_req_cnt--;
els_io_printf(els,
"LS_RJT Logical Busy, delay and retry\n");
timer_setup(&els->delay_timer,
efc_els_delay_timer_cb, 0);
mod_timer(&els->delay_timer,
jiffies + msecs_to_jiffies(5000));
break;
default:
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_REQ_RJT,
&cbdata);
break;
}
break;
case SLI4_FC_WCQE_STATUS_LOCAL_REJECT:
switch (ext_status) {
case SLI4_FC_LOCAL_REJECT_SEQUENCE_TIMEOUT:
efc_els_retry(els);
break;
default:
efc_log_err(efc, "LOCAL_REJECT with ext status:%x\n",
ext_status);
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_REQ_FAIL,
&cbdata);
break;
}
break;
default: /* Other error */
efc_log_warn(efc, "els req failed status x%x, ext_status x%x\n",
status, ext_status);
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_REQ_FAIL, &cbdata);
break;
}
return 0;
}
void efc_disc_io_complete(struct efc_disc_io *io, u32 len, u32 status,
u32 ext_status)
{
struct efc_els_io_req *els =
container_of(io, struct efc_els_io_req, io);
WARN_ON_ONCE(!els->cb);
((efc_hw_srrs_cb_t)els->cb) (els, len, status, ext_status);
}
static int efc_els_send_req(struct efc_node *node, struct efc_els_io_req *els,
enum efc_disc_io_type io_type)
{
int rc = 0;
struct efc *efc = node->efc;
struct efc_node_cb cbdata;
/* update ELS request counter */
els->node->els_req_cnt++;
/* Prepare the IO request details */
els->io.io_type = io_type;
els->io.xmit_len = els->io.req.size;
els->io.rsp_len = els->io.rsp.size;
els->io.rpi = node->rnode.indicator;
els->io.vpi = node->nport->indicator;
els->io.s_id = node->nport->fc_id;
els->io.d_id = node->rnode.fc_id;
if (node->rnode.attached)
els->io.rpi_registered = true;
els->cb = efc_els_req_cb;
rc = efc->tt.send_els(efc, &els->io);
if (!rc)
return rc;
cbdata.status = EFC_STATUS_INVALID;
cbdata.ext_status = EFC_STATUS_INVALID;
cbdata.els_rsp = els->io.rsp;
efc_log_err(efc, "efc_els_send failed: %d\n", rc);
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_REQ_FAIL, &cbdata);
return rc;
}
static void
efc_els_retry(struct efc_els_io_req *els)
{
struct efc *efc;
struct efc_node_cb cbdata;
u32 rc;
efc = els->node->efc;
cbdata.status = EFC_STATUS_INVALID;
cbdata.ext_status = EFC_STATUS_INVALID;
cbdata.els_rsp = els->io.rsp;
if (els->els_retries_remaining) {
els->els_retries_remaining--;
rc = efc->tt.send_els(efc, &els->io);
} else {
rc = -EIO;
}
if (rc) {
efc_log_err(efc, "ELS retries exhausted\n");
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_REQ_FAIL, &cbdata);
}
}
static int
efc_els_acc_cb(void *arg, u32 length, int status, u32 ext_status)
{
struct efc_els_io_req *els;
struct efc_node *node;
struct efc *efc;
struct efc_node_cb cbdata;
els = arg;
node = els->node;
efc = node->efc;
cbdata.status = status;
cbdata.ext_status = ext_status;
cbdata.header = NULL;
cbdata.els_rsp = els->io.rsp;
/* Post node event */
switch (status) {
case SLI4_FC_WCQE_STATUS_SUCCESS:
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_CMPL_OK, &cbdata);
break;
default: /* Other error */
efc_log_warn(efc, "[%s] %-8s failed status x%x, ext x%x\n",
node->display_name, els->display_name,
status, ext_status);
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_CMPL_FAIL, &cbdata);
break;
}
return 0;
}
static int
efc_els_send_rsp(struct efc_els_io_req *els, u32 rsplen)
{
int rc = 0;
struct efc_node_cb cbdata;
struct efc_node *node = els->node;
struct efc *efc = node->efc;
/* increment ELS completion counter */
node->els_cmpl_cnt++;
els->io.io_type = EFC_DISC_IO_ELS_RESP;
els->cb = efc_els_acc_cb;
/* Prepare the IO request details */
els->io.xmit_len = rsplen;
els->io.rsp_len = els->io.rsp.size;
els->io.rpi = node->rnode.indicator;
els->io.vpi = node->nport->indicator;
if (node->nport->fc_id != U32_MAX)
els->io.s_id = node->nport->fc_id;
else
els->io.s_id = els->io.iparam.els.s_id;
els->io.d_id = node->rnode.fc_id;
if (node->attached)
els->io.rpi_registered = true;
rc = efc->tt.send_els(efc, &els->io);
if (!rc)
return rc;
cbdata.status = EFC_STATUS_INVALID;
cbdata.ext_status = EFC_STATUS_INVALID;
cbdata.els_rsp = els->io.rsp;
efc_els_io_cleanup(els, EFC_EVT_SRRS_ELS_CMPL_FAIL, &cbdata);
return rc;
}
int
efc_send_plogi(struct efc_node *node)
{
struct efc_els_io_req *els;
struct efc *efc = node->efc;
struct fc_els_flogi *plogi;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*plogi));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->display_name = "plogi";
/* Build PLOGI request */
plogi = els->io.req.virt;
memcpy(plogi, node->nport->service_params, sizeof(*plogi));
plogi->fl_cmd = ELS_PLOGI;
memset(plogi->_fl_resvd, 0, sizeof(plogi->_fl_resvd));
return efc_els_send_req(node, els, EFC_DISC_IO_ELS_REQ);
}
int
efc_send_flogi(struct efc_node *node)
{
struct efc_els_io_req *els;
struct efc *efc;
struct fc_els_flogi *flogi;
efc = node->efc;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*flogi));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->display_name = "flogi";
/* Build FLOGI request */
flogi = els->io.req.virt;
memcpy(flogi, node->nport->service_params, sizeof(*flogi));
flogi->fl_cmd = ELS_FLOGI;
memset(flogi->_fl_resvd, 0, sizeof(flogi->_fl_resvd));
return efc_els_send_req(node, els, EFC_DISC_IO_ELS_REQ);
}
int
efc_send_fdisc(struct efc_node *node)
{
struct efc_els_io_req *els;
struct efc *efc;
struct fc_els_flogi *fdisc;
efc = node->efc;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*fdisc));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->display_name = "fdisc";
/* Build FDISC request */
fdisc = els->io.req.virt;
memcpy(fdisc, node->nport->service_params, sizeof(*fdisc));
fdisc->fl_cmd = ELS_FDISC;
memset(fdisc->_fl_resvd, 0, sizeof(fdisc->_fl_resvd));
return efc_els_send_req(node, els, EFC_DISC_IO_ELS_REQ);
}
int
efc_send_prli(struct efc_node *node)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els;
struct {
struct fc_els_prli prli;
struct fc_els_spp spp;
} *pp;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*pp));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->display_name = "prli";
/* Build PRLI request */
pp = els->io.req.virt;
memset(pp, 0, sizeof(*pp));
pp->prli.prli_cmd = ELS_PRLI;
pp->prli.prli_spp_len = 16;
pp->prli.prli_len = cpu_to_be16(sizeof(*pp));
pp->spp.spp_type = FC_TYPE_FCP;
pp->spp.spp_type_ext = 0;
pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR;
pp->spp.spp_params = cpu_to_be32(FCP_SPPF_RD_XRDY_DIS |
(node->nport->enable_ini ?
FCP_SPPF_INIT_FCN : 0) |
(node->nport->enable_tgt ?
FCP_SPPF_TARG_FCN : 0));
return efc_els_send_req(node, els, EFC_DISC_IO_ELS_REQ);
}
int
efc_send_logo(struct efc_node *node)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els;
struct fc_els_logo *logo;
struct fc_els_flogi *sparams;
node_els_trace();
sparams = (struct fc_els_flogi *)node->nport->service_params;
els = efc_els_io_alloc(node, sizeof(*logo));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->display_name = "logo";
/* Build LOGO request */
logo = els->io.req.virt;
memset(logo, 0, sizeof(*logo));
logo->fl_cmd = ELS_LOGO;
hton24(logo->fl_n_port_id, node->rnode.nport->fc_id);
logo->fl_n_port_wwn = sparams->fl_wwpn;
return efc_els_send_req(node, els, EFC_DISC_IO_ELS_REQ);
}
int
efc_send_adisc(struct efc_node *node)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els;
struct fc_els_adisc *adisc;
struct fc_els_flogi *sparams;
struct efc_nport *nport = node->nport;
node_els_trace();
sparams = (struct fc_els_flogi *)node->nport->service_params;
els = efc_els_io_alloc(node, sizeof(*adisc));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->display_name = "adisc";
/* Build ADISC request */
adisc = els->io.req.virt;
memset(adisc, 0, sizeof(*adisc));
adisc->adisc_cmd = ELS_ADISC;
hton24(adisc->adisc_hard_addr, nport->fc_id);
adisc->adisc_wwpn = sparams->fl_wwpn;
adisc->adisc_wwnn = sparams->fl_wwnn;
hton24(adisc->adisc_port_id, node->rnode.nport->fc_id);
return efc_els_send_req(node, els, EFC_DISC_IO_ELS_REQ);
}
int
efc_send_scr(struct efc_node *node)
{
struct efc_els_io_req *els;
struct efc *efc = node->efc;
struct fc_els_scr *req;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*req));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->display_name = "scr";
req = els->io.req.virt;
memset(req, 0, sizeof(*req));
req->scr_cmd = ELS_SCR;
req->scr_reg_func = ELS_SCRF_FULL;
return efc_els_send_req(node, els, EFC_DISC_IO_ELS_REQ);
}
int
efc_send_ls_rjt(struct efc_node *node, u32 ox_id, u32 reason_code,
u32 reason_code_expl, u32 vendor_unique)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els = NULL;
struct fc_els_ls_rjt *rjt;
els = efc_els_io_alloc(node, sizeof(*rjt));
if (!els) {
efc_log_err(efc, "els IO alloc failed\n");
return -EIO;
}
node_els_trace();
els->display_name = "ls_rjt";
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.els.ox_id = ox_id;
rjt = els->io.req.virt;
memset(rjt, 0, sizeof(*rjt));
rjt->er_cmd = ELS_LS_RJT;
rjt->er_reason = reason_code;
rjt->er_explan = reason_code_expl;
return efc_els_send_rsp(els, sizeof(*rjt));
}
int
efc_send_plogi_acc(struct efc_node *node, u32 ox_id)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els = NULL;
struct fc_els_flogi *plogi;
struct fc_els_flogi *req = (struct fc_els_flogi *)node->service_params;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*plogi));
if (!els) {
efc_log_err(efc, "els IO alloc failed\n");
return -EIO;
}
els->display_name = "plogi_acc";
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.els.ox_id = ox_id;
plogi = els->io.req.virt;
/* copy our port's service parameters to payload */
memcpy(plogi, node->nport->service_params, sizeof(*plogi));
plogi->fl_cmd = ELS_LS_ACC;
memset(plogi->_fl_resvd, 0, sizeof(plogi->_fl_resvd));
/* Set Application header support bit if requested */
if (req->fl_csp.sp_features & cpu_to_be16(FC_SP_FT_BCAST))
plogi->fl_csp.sp_features |= cpu_to_be16(FC_SP_FT_BCAST);
return efc_els_send_rsp(els, sizeof(*plogi));
}
int
efc_send_flogi_p2p_acc(struct efc_node *node, u32 ox_id, u32 s_id)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els = NULL;
struct fc_els_flogi *flogi;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*flogi));
if (!els) {
efc_log_err(efc, "els IO alloc failed\n");
return -EIO;
}
els->display_name = "flogi_p2p_acc";
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.els.ox_id = ox_id;
els->io.iparam.els.s_id = s_id;
flogi = els->io.req.virt;
/* copy our port's service parameters to payload */
memcpy(flogi, node->nport->service_params, sizeof(*flogi));
flogi->fl_cmd = ELS_LS_ACC;
memset(flogi->_fl_resvd, 0, sizeof(flogi->_fl_resvd));
memset(flogi->fl_cssp, 0, sizeof(flogi->fl_cssp));
return efc_els_send_rsp(els, sizeof(*flogi));
}
int
efc_send_prli_acc(struct efc_node *node, u32 ox_id)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els = NULL;
struct {
struct fc_els_prli prli;
struct fc_els_spp spp;
} *pp;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*pp));
if (!els) {
efc_log_err(efc, "els IO alloc failed\n");
return -EIO;
}
els->display_name = "prli_acc";
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.els.ox_id = ox_id;
pp = els->io.req.virt;
memset(pp, 0, sizeof(*pp));
pp->prli.prli_cmd = ELS_LS_ACC;
pp->prli.prli_spp_len = 0x10;
pp->prli.prli_len = cpu_to_be16(sizeof(*pp));
pp->spp.spp_type = FC_TYPE_FCP;
pp->spp.spp_type_ext = 0;
pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR | FC_SPP_RESP_ACK;
pp->spp.spp_params = cpu_to_be32(FCP_SPPF_RD_XRDY_DIS |
(node->nport->enable_ini ?
FCP_SPPF_INIT_FCN : 0) |
(node->nport->enable_tgt ?
FCP_SPPF_TARG_FCN : 0));
return efc_els_send_rsp(els, sizeof(*pp));
}
int
efc_send_prlo_acc(struct efc_node *node, u32 ox_id)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els = NULL;
struct {
struct fc_els_prlo prlo;
struct fc_els_spp spp;
} *pp;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*pp));
if (!els) {
efc_log_err(efc, "els IO alloc failed\n");
return -EIO;
}
els->display_name = "prlo_acc";
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.els.ox_id = ox_id;
pp = els->io.req.virt;
memset(pp, 0, sizeof(*pp));
pp->prlo.prlo_cmd = ELS_LS_ACC;
pp->prlo.prlo_obs = 0x10;
pp->prlo.prlo_len = cpu_to_be16(sizeof(*pp));
pp->spp.spp_type = FC_TYPE_FCP;
pp->spp.spp_type_ext = 0;
pp->spp.spp_flags = FC_SPP_RESP_ACK;
return efc_els_send_rsp(els, sizeof(*pp));
}
int
efc_send_ls_acc(struct efc_node *node, u32 ox_id)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els = NULL;
struct fc_els_ls_acc *acc;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*acc));
if (!els) {
efc_log_err(efc, "els IO alloc failed\n");
return -EIO;
}
els->display_name = "ls_acc";
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.els.ox_id = ox_id;
acc = els->io.req.virt;
memset(acc, 0, sizeof(*acc));
acc->la_cmd = ELS_LS_ACC;
return efc_els_send_rsp(els, sizeof(*acc));
}
int
efc_send_logo_acc(struct efc_node *node, u32 ox_id)
{
struct efc_els_io_req *els = NULL;
struct efc *efc = node->efc;
struct fc_els_ls_acc *logo;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*logo));
if (!els) {
efc_log_err(efc, "els IO alloc failed\n");
return -EIO;
}
els->display_name = "logo_acc";
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.els.ox_id = ox_id;
logo = els->io.req.virt;
memset(logo, 0, sizeof(*logo));
logo->la_cmd = ELS_LS_ACC;
return efc_els_send_rsp(els, sizeof(*logo));
}
int
efc_send_adisc_acc(struct efc_node *node, u32 ox_id)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els = NULL;
struct fc_els_adisc *adisc;
struct fc_els_flogi *sparams;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*adisc));
if (!els) {
efc_log_err(efc, "els IO alloc failed\n");
return -EIO;
}
els->display_name = "adisc_acc";
/* Go ahead and send the ELS_ACC */
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.els.ox_id = ox_id;
sparams = (struct fc_els_flogi *)node->nport->service_params;
adisc = els->io.req.virt;
memset(adisc, 0, sizeof(*adisc));
adisc->adisc_cmd = ELS_LS_ACC;
adisc->adisc_wwpn = sparams->fl_wwpn;
adisc->adisc_wwnn = sparams->fl_wwnn;
hton24(adisc->adisc_port_id, node->rnode.nport->fc_id);
return efc_els_send_rsp(els, sizeof(*adisc));
}
static inline void
fcct_build_req_header(struct fc_ct_hdr *hdr, u16 cmd, u16 max_size)
{
hdr->ct_rev = FC_CT_REV;
hdr->ct_fs_type = FC_FST_DIR;
hdr->ct_fs_subtype = FC_NS_SUBTYPE;
hdr->ct_options = 0;
hdr->ct_cmd = cpu_to_be16(cmd);
/* words */
hdr->ct_mr_size = cpu_to_be16(max_size / (sizeof(u32)));
hdr->ct_reason = 0;
hdr->ct_explan = 0;
hdr->ct_vendor = 0;
}
int
efc_ns_send_rftid(struct efc_node *node)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els;
struct {
struct fc_ct_hdr hdr;
struct fc_ns_rft_id rftid;
} *ct;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*ct));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->io.iparam.ct.r_ctl = FC_RCTL_ELS_REQ;
els->io.iparam.ct.type = FC_TYPE_CT;
els->io.iparam.ct.df_ctl = 0;
els->io.iparam.ct.timeout = EFC_FC_ELS_SEND_DEFAULT_TIMEOUT;
els->display_name = "rftid";
ct = els->io.req.virt;
memset(ct, 0, sizeof(*ct));
fcct_build_req_header(&ct->hdr, FC_NS_RFT_ID,
sizeof(struct fc_ns_rft_id));
hton24(ct->rftid.fr_fid.fp_fid, node->rnode.nport->fc_id);
ct->rftid.fr_fts.ff_type_map[FC_TYPE_FCP / FC_NS_BPW] =
cpu_to_be32(1 << (FC_TYPE_FCP % FC_NS_BPW));
return efc_els_send_req(node, els, EFC_DISC_IO_CT_REQ);
}
int
efc_ns_send_rffid(struct efc_node *node)
{
struct efc *efc = node->efc;
struct efc_els_io_req *els;
struct {
struct fc_ct_hdr hdr;
struct fc_ns_rff_id rffid;
} *ct;
node_els_trace();
els = efc_els_io_alloc(node, sizeof(*ct));
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->io.iparam.ct.r_ctl = FC_RCTL_ELS_REQ;
els->io.iparam.ct.type = FC_TYPE_CT;
els->io.iparam.ct.df_ctl = 0;
els->io.iparam.ct.timeout = EFC_FC_ELS_SEND_DEFAULT_TIMEOUT;
els->display_name = "rffid";
ct = els->io.req.virt;
memset(ct, 0, sizeof(*ct));
fcct_build_req_header(&ct->hdr, FC_NS_RFF_ID,
sizeof(struct fc_ns_rff_id));
hton24(ct->rffid.fr_fid.fp_fid, node->rnode.nport->fc_id);
if (node->nport->enable_ini)
ct->rffid.fr_feat |= FCP_FEAT_INIT;
if (node->nport->enable_tgt)
ct->rffid.fr_feat |= FCP_FEAT_TARG;
ct->rffid.fr_type = FC_TYPE_FCP;
return efc_els_send_req(node, els, EFC_DISC_IO_CT_REQ);
}
int
efc_ns_send_gidpt(struct efc_node *node)
{
struct efc_els_io_req *els = NULL;
struct efc *efc = node->efc;
struct {
struct fc_ct_hdr hdr;
struct fc_ns_gid_pt gidpt;
} *ct;
node_els_trace();
els = efc_els_io_alloc_size(node, sizeof(*ct), EFC_ELS_GID_PT_RSP_LEN);
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
els->io.iparam.ct.r_ctl = FC_RCTL_ELS_REQ;
els->io.iparam.ct.type = FC_TYPE_CT;
els->io.iparam.ct.df_ctl = 0;
els->io.iparam.ct.timeout = EFC_FC_ELS_SEND_DEFAULT_TIMEOUT;
els->display_name = "gidpt";
ct = els->io.req.virt;
memset(ct, 0, sizeof(*ct));
fcct_build_req_header(&ct->hdr, FC_NS_GID_PT,
sizeof(struct fc_ns_gid_pt));
ct->gidpt.fn_pt_type = FC_TYPE_FCP;
return efc_els_send_req(node, els, EFC_DISC_IO_CT_REQ);
}
void
efc_els_io_cleanup(struct efc_els_io_req *els, int evt, void *arg)
{
/* don't want further events that could come; e.g. abort requests
* from the node state machine; thus, disable state machine
*/
els->els_req_free = true;
efc_node_post_els_resp(els->node, evt, arg);
efc_els_io_free(els);
}
static int
efc_ct_acc_cb(void *arg, u32 length, int status, u32 ext_status)
{
struct efc_els_io_req *els = arg;
efc_els_io_free(els);
return 0;
}
int
efc_send_ct_rsp(struct efc *efc, struct efc_node *node, u16 ox_id,
struct fc_ct_hdr *ct_hdr, u32 cmd_rsp_code,
u32 reason_code, u32 reason_code_explanation)
{
struct efc_els_io_req *els = NULL;
struct fc_ct_hdr *rsp = NULL;
els = efc_els_io_alloc(node, 256);
if (!els) {
efc_log_err(efc, "IO alloc failed\n");
return -EIO;
}
rsp = els->io.rsp.virt;
*rsp = *ct_hdr;
fcct_build_req_header(rsp, cmd_rsp_code, 0);
rsp->ct_reason = reason_code;
rsp->ct_explan = reason_code_explanation;
els->display_name = "ct_rsp";
els->cb = efc_ct_acc_cb;
/* Prepare the IO request details */
els->io.io_type = EFC_DISC_IO_CT_RESP;
els->io.xmit_len = sizeof(*rsp);
els->io.rpi = node->rnode.indicator;
els->io.d_id = node->rnode.fc_id;
memset(&els->io.iparam, 0, sizeof(els->io.iparam));
els->io.iparam.ct.ox_id = ox_id;
els->io.iparam.ct.r_ctl = 3;
els->io.iparam.ct.type = FC_TYPE_CT;
els->io.iparam.ct.df_ctl = 0;
els->io.iparam.ct.timeout = 5;
if (efc->tt.send_els(efc, &els->io)) {
efc_els_io_free(els);
return -EIO;
}
return 0;
}
int
efc_send_bls_acc(struct efc_node *node, struct fc_frame_header *hdr)
{
struct sli_bls_params bls;
struct fc_ba_acc *acc;
struct efc *efc = node->efc;
memset(&bls, 0, sizeof(bls));
bls.ox_id = be16_to_cpu(hdr->fh_ox_id);
bls.rx_id = be16_to_cpu(hdr->fh_rx_id);
bls.s_id = ntoh24(hdr->fh_d_id);
bls.d_id = node->rnode.fc_id;
bls.rpi = node->rnode.indicator;
bls.vpi = node->nport->indicator;
acc = (void *)bls.payload;
acc->ba_ox_id = cpu_to_be16(bls.ox_id);
acc->ba_rx_id = cpu_to_be16(bls.rx_id);
acc->ba_high_seq_cnt = cpu_to_be16(U16_MAX);
return efc->tt.send_bls(efc, FC_RCTL_BA_ACC, &bls);
}
|
linux-master
|
drivers/scsi/elx/libefc/efc_els.c
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
/*
* device_sm Node State Machine: Remote Device States
*/
#include "efc.h"
#include "efc_device.h"
#include "efc_fabric.h"
void
efc_d_send_prli_rsp(struct efc_node *node, u16 ox_id)
{
int rc = EFC_SCSI_CALL_COMPLETE;
struct efc *efc = node->efc;
node->ls_acc_oxid = ox_id;
node->send_ls_acc = EFC_NODE_SEND_LS_ACC_PRLI;
/*
* Wait for backend session registration
* to complete before sending PRLI resp
*/
if (node->init) {
efc_log_info(efc, "[%s] found(initiator) WWPN:%s WWNN:%s\n",
node->display_name, node->wwpn, node->wwnn);
if (node->nport->enable_tgt)
rc = efc->tt.scsi_new_node(efc, node);
}
if (rc < 0)
efc_node_post_event(node, EFC_EVT_NODE_SESS_REG_FAIL, NULL);
if (rc == EFC_SCSI_CALL_COMPLETE)
efc_node_post_event(node, EFC_EVT_NODE_SESS_REG_OK, NULL);
}
static void
__efc_d_common(const char *funcname, struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = NULL;
struct efc *efc = NULL;
node = ctx->app;
efc = node->efc;
switch (evt) {
/* Handle shutdown events */
case EFC_EVT_SHUTDOWN:
efc_log_debug(efc, "[%s] %-20s %-20s\n", node->display_name,
funcname, efc_sm_event_name(evt));
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_node_transition(node, __efc_d_initiate_shutdown, NULL);
break;
case EFC_EVT_SHUTDOWN_EXPLICIT_LOGO:
efc_log_debug(efc, "[%s] %-20s %-20s\n",
node->display_name, funcname,
efc_sm_event_name(evt));
node->shutdown_reason = EFC_NODE_SHUTDOWN_EXPLICIT_LOGO;
efc_node_transition(node, __efc_d_initiate_shutdown, NULL);
break;
case EFC_EVT_SHUTDOWN_IMPLICIT_LOGO:
efc_log_debug(efc, "[%s] %-20s %-20s\n", node->display_name,
funcname, efc_sm_event_name(evt));
node->shutdown_reason = EFC_NODE_SHUTDOWN_IMPLICIT_LOGO;
efc_node_transition(node, __efc_d_initiate_shutdown, NULL);
break;
default:
/* call default event handler common to all nodes */
__efc_node_common(funcname, ctx, evt, arg);
}
}
static void
__efc_d_wait_del_node(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
/*
* State is entered when a node sends a delete initiator/target call
* to the target-server/initiator-client and needs to wait for that
* work to complete.
*/
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
fallthrough;
case EFC_EVT_NODE_ACTIVE_IO_LIST_EMPTY:
case EFC_EVT_ALL_CHILD_NODES_FREE:
/* These are expected events. */
break;
case EFC_EVT_NODE_DEL_INI_COMPLETE:
case EFC_EVT_NODE_DEL_TGT_COMPLETE:
/*
* node has either been detached or is in the process
* of being detached,
* call common node's initiate cleanup function
*/
efc_node_initiate_cleanup(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_REQ_FAIL:
/* Can happen as ELS IO IO's complete */
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
break;
/* ignore shutdown events as we're already in shutdown path */
case EFC_EVT_SHUTDOWN:
/* have default shutdown event take precedence */
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
fallthrough;
case EFC_EVT_SHUTDOWN_EXPLICIT_LOGO:
case EFC_EVT_SHUTDOWN_IMPLICIT_LOGO:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
break;
case EFC_EVT_DOMAIN_ATTACH_OK:
/* don't care about domain_attach_ok */
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
static void
__efc_d_wait_del_ini_tgt(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
fallthrough;
case EFC_EVT_NODE_ACTIVE_IO_LIST_EMPTY:
case EFC_EVT_ALL_CHILD_NODES_FREE:
/* These are expected events. */
break;
case EFC_EVT_NODE_DEL_INI_COMPLETE:
case EFC_EVT_NODE_DEL_TGT_COMPLETE:
efc_node_transition(node, __efc_d_wait_del_node, NULL);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_REQ_FAIL:
/* Can happen as ELS IO IO's complete */
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
break;
/* ignore shutdown events as we're already in shutdown path */
case EFC_EVT_SHUTDOWN:
/* have default shutdown event take precedence */
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
fallthrough;
case EFC_EVT_SHUTDOWN_EXPLICIT_LOGO:
case EFC_EVT_SHUTDOWN_IMPLICIT_LOGO:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
break;
case EFC_EVT_DOMAIN_ATTACH_OK:
/* don't care about domain_attach_ok */
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_initiate_shutdown(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
struct efc *efc = node->efc;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER: {
int rc = EFC_SCSI_CALL_COMPLETE;
/* assume no wait needed */
node->els_io_enabled = false;
/* make necessary delete upcall(s) */
if (node->init && !node->targ) {
efc_log_info(node->efc,
"[%s] delete (initiator) WWPN %s WWNN %s\n",
node->display_name,
node->wwpn, node->wwnn);
efc_node_transition(node,
__efc_d_wait_del_node,
NULL);
if (node->nport->enable_tgt)
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_INITIATOR_DELETED);
if (rc == EFC_SCSI_CALL_COMPLETE || rc < 0)
efc_node_post_event(node,
EFC_EVT_NODE_DEL_INI_COMPLETE, NULL);
} else if (node->targ && !node->init) {
efc_log_info(node->efc,
"[%s] delete (target) WWPN %s WWNN %s\n",
node->display_name,
node->wwpn, node->wwnn);
efc_node_transition(node,
__efc_d_wait_del_node,
NULL);
if (node->nport->enable_ini)
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_TARGET_DELETED);
if (rc == EFC_SCSI_CALL_COMPLETE)
efc_node_post_event(node,
EFC_EVT_NODE_DEL_TGT_COMPLETE, NULL);
} else if (node->init && node->targ) {
efc_log_info(node->efc,
"[%s] delete (I+T) WWPN %s WWNN %s\n",
node->display_name, node->wwpn, node->wwnn);
efc_node_transition(node, __efc_d_wait_del_ini_tgt,
NULL);
if (node->nport->enable_tgt)
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_INITIATOR_DELETED);
if (rc == EFC_SCSI_CALL_COMPLETE)
efc_node_post_event(node,
EFC_EVT_NODE_DEL_INI_COMPLETE, NULL);
/* assume no wait needed */
rc = EFC_SCSI_CALL_COMPLETE;
if (node->nport->enable_ini)
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_TARGET_DELETED);
if (rc == EFC_SCSI_CALL_COMPLETE)
efc_node_post_event(node,
EFC_EVT_NODE_DEL_TGT_COMPLETE, NULL);
}
/* we've initiated the upcalls as needed, now kick off the node
* detach to precipitate the aborting of outstanding exchanges
* associated with said node
*
* Beware: if we've made upcall(s), we've already transitioned
* to a new state by the time we execute this.
* consider doing this before the upcalls?
*/
if (node->attached) {
/* issue hw node free; don't care if succeeds right
* away or sometime later, will check node->attached
* later in shutdown process
*/
rc = efc_cmd_node_detach(efc, &node->rnode);
if (rc < 0)
node_printf(node,
"Failed freeing HW node, rc=%d\n",
rc);
}
/* if neither initiator nor target, proceed to cleanup */
if (!node->init && !node->targ) {
/*
* node has either been detached or is in
* the process of being detached,
* call common node's initiate cleanup function
*/
efc_node_initiate_cleanup(node);
}
break;
}
case EFC_EVT_ALL_CHILD_NODES_FREE:
/* Ignore, this can happen if an ELS is
* aborted while in a delay/retry state
*/
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_loop(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_DOMAIN_ATTACH_OK: {
/* send PLOGI automatically if initiator */
efc_node_init_device(node, true);
break;
}
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
efc_send_ls_acc_after_attach(struct efc_node *node,
struct fc_frame_header *hdr,
enum efc_node_send_ls_acc ls)
{
u16 ox_id = be16_to_cpu(hdr->fh_ox_id);
/* Save the OX_ID for sending LS_ACC sometime later */
WARN_ON(node->send_ls_acc != EFC_NODE_SEND_LS_ACC_NONE);
node->ls_acc_oxid = ox_id;
node->send_ls_acc = ls;
node->ls_acc_did = ntoh24(hdr->fh_d_id);
}
void
efc_process_prli_payload(struct efc_node *node, void *prli)
{
struct {
struct fc_els_prli prli;
struct fc_els_spp sp;
} *pp;
pp = prli;
node->init = (pp->sp.spp_flags & FCP_SPPF_INIT_FCN) != 0;
node->targ = (pp->sp.spp_flags & FCP_SPPF_TARG_FCN) != 0;
}
void
__efc_d_wait_plogi_acc_cmpl(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_CMPL_FAIL:
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_node_transition(node, __efc_d_initiate_shutdown, NULL);
break;
case EFC_EVT_SRRS_ELS_CMPL_OK: /* PLOGI ACC completions */
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
efc_node_transition(node, __efc_d_port_logged_in, NULL);
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_logo_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_REQ_OK:
case EFC_EVT_SRRS_ELS_REQ_RJT:
case EFC_EVT_SRRS_ELS_REQ_FAIL:
/* LOGO response received, sent shutdown */
if (efc_node_check_els_req(ctx, evt, arg, ELS_LOGO,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
node_printf(node,
"LOGO sent (evt=%s), shutdown node\n",
efc_sm_event_name(evt));
/* sm: / post explicit logout */
efc_node_post_event(node, EFC_EVT_SHUTDOWN_EXPLICIT_LOGO,
NULL);
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
efc_node_init_device(struct efc_node *node, bool send_plogi)
{
node->send_plogi = send_plogi;
if ((node->efc->nodedb_mask & EFC_NODEDB_PAUSE_NEW_NODES) &&
(node->rnode.fc_id != FC_FID_DOM_MGR)) {
node->nodedb_state = __efc_d_init;
efc_node_transition(node, __efc_node_paused, NULL);
} else {
efc_node_transition(node, __efc_d_init, NULL);
}
}
static void
efc_d_check_plogi_topology(struct efc_node *node, u32 d_id)
{
switch (node->nport->topology) {
case EFC_NPORT_TOPO_P2P:
/* we're not attached and nport is p2p,
* need to attach
*/
efc_domain_attach(node->nport->domain, d_id);
efc_node_transition(node, __efc_d_wait_domain_attach, NULL);
break;
case EFC_NPORT_TOPO_FABRIC:
/* we're not attached and nport is fabric, domain
* attach should have already been requested as part
* of the fabric state machine, wait for it
*/
efc_node_transition(node, __efc_d_wait_domain_attach, NULL);
break;
case EFC_NPORT_TOPO_UNKNOWN:
/* Two possibilities:
* 1. received a PLOGI before our FLOGI has completed
* (possible since completion comes in on another
* CQ), thus we don't know what we're connected to
* yet; transition to a state to wait for the
* fabric node to tell us;
* 2. PLOGI received before link went down and we
* haven't performed domain attach yet.
* Note: we cannot distinguish between 1. and 2.
* so have to assume PLOGI
* was received after link back up.
*/
node_printf(node, "received PLOGI, unknown topology did=0x%x\n",
d_id);
efc_node_transition(node, __efc_d_wait_topology_notify, NULL);
break;
default:
node_printf(node, "received PLOGI, unexpected topology %d\n",
node->nport->topology);
}
}
void
__efc_d_init(struct efc_sm_ctx *ctx, enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
/*
* This state is entered when a node is instantiated,
* either having been discovered from a name services query,
* or having received a PLOGI/FLOGI.
*/
switch (evt) {
case EFC_EVT_ENTER:
if (!node->send_plogi)
break;
/* only send if we have initiator capability,
* and domain is attached
*/
if (node->nport->enable_ini &&
node->nport->domain->attached) {
efc_send_plogi(node);
efc_node_transition(node, __efc_d_wait_plogi_rsp, NULL);
} else {
node_printf(node, "not sending plogi nport.ini=%d,",
node->nport->enable_ini);
node_printf(node, "domain attached=%d\n",
node->nport->domain->attached);
}
break;
case EFC_EVT_PLOGI_RCVD: {
/* T, or I+T */
struct fc_frame_header *hdr = cbdata->header->dma.virt;
int rc;
efc_node_save_sparms(node, cbdata->payload->dma.virt);
efc_send_ls_acc_after_attach(node,
cbdata->header->dma.virt,
EFC_NODE_SEND_LS_ACC_PLOGI);
/* domain not attached; several possibilities: */
if (!node->nport->domain->attached) {
efc_d_check_plogi_topology(node, ntoh24(hdr->fh_d_id));
break;
}
/* domain already attached */
rc = efc_node_attach(node);
efc_node_transition(node, __efc_d_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node, EFC_EVT_NODE_ATTACH_FAIL, NULL);
break;
}
case EFC_EVT_FDISC_RCVD: {
__efc_d_common(__func__, ctx, evt, arg);
break;
}
case EFC_EVT_FLOGI_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
u32 d_id = ntoh24(hdr->fh_d_id);
/* sm: / save sparams, send FLOGI acc */
memcpy(node->nport->domain->flogi_service_params,
cbdata->payload->dma.virt,
sizeof(struct fc_els_flogi));
/* send FC LS_ACC response, override s_id */
efc_fabric_set_topology(node, EFC_NPORT_TOPO_P2P);
efc_send_flogi_p2p_acc(node, be16_to_cpu(hdr->fh_ox_id), d_id);
if (efc_p2p_setup(node->nport)) {
node_printf(node, "p2p failed, shutting down node\n");
efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
break;
}
efc_node_transition(node, __efc_p2p_wait_flogi_acc_cmpl, NULL);
break;
}
case EFC_EVT_LOGO_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
if (!node->nport->domain->attached) {
/* most likely a frame left over from before a link
* down; drop and
* shut node down w/ "explicit logout" so pending
* frames are processed
*/
node_printf(node, "%s domain not attached, dropping\n",
efc_sm_event_name(evt));
efc_node_post_event(node,
EFC_EVT_SHUTDOWN_EXPLICIT_LOGO, NULL);
break;
}
efc_send_logo_acc(node, be16_to_cpu(hdr->fh_ox_id));
efc_node_transition(node, __efc_d_wait_logo_acc_cmpl, NULL);
break;
}
case EFC_EVT_PRLI_RCVD:
case EFC_EVT_PRLO_RCVD:
case EFC_EVT_PDISC_RCVD:
case EFC_EVT_ADISC_RCVD:
case EFC_EVT_RSCN_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
if (!node->nport->domain->attached) {
/* most likely a frame left over from before a link
* down; drop and shut node down w/ "explicit logout"
* so pending frames are processed
*/
node_printf(node, "%s domain not attached, dropping\n",
efc_sm_event_name(evt));
efc_node_post_event(node,
EFC_EVT_SHUTDOWN_EXPLICIT_LOGO,
NULL);
break;
}
node_printf(node, "%s received, sending reject\n",
efc_sm_event_name(evt));
efc_send_ls_rjt(node, be16_to_cpu(hdr->fh_ox_id),
ELS_RJT_UNAB, ELS_EXPL_PLOGI_REQD, 0);
break;
}
case EFC_EVT_FCP_CMD_RCVD: {
/* note: problem, we're now expecting an ELS REQ completion
* from both the LOGO and PLOGI
*/
if (!node->nport->domain->attached) {
/* most likely a frame left over from before a
* link down; drop and
* shut node down w/ "explicit logout" so pending
* frames are processed
*/
node_printf(node, "%s domain not attached, dropping\n",
efc_sm_event_name(evt));
efc_node_post_event(node,
EFC_EVT_SHUTDOWN_EXPLICIT_LOGO,
NULL);
break;
}
/* Send LOGO */
node_printf(node, "FCP_CMND received, send LOGO\n");
if (efc_send_logo(node)) {
/*
* failed to send LOGO, go ahead and cleanup node
* anyways
*/
node_printf(node, "Failed to send LOGO\n");
efc_node_post_event(node,
EFC_EVT_SHUTDOWN_EXPLICIT_LOGO,
NULL);
} else {
/* sent LOGO, wait for response */
efc_node_transition(node,
__efc_d_wait_logo_rsp, NULL);
}
break;
}
case EFC_EVT_DOMAIN_ATTACH_OK:
/* don't care about domain_attach_ok */
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_plogi_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
int rc;
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_PLOGI_RCVD: {
/* T, or I+T */
/* received PLOGI with svc parms, go ahead and attach node
* when PLOGI that was sent ultimately completes, it'll be a
* no-op
*
* If there is an outstanding PLOGI sent, can we set a flag
* to indicate that we don't want to retry it if it times out?
*/
efc_node_save_sparms(node, cbdata->payload->dma.virt);
efc_send_ls_acc_after_attach(node,
cbdata->header->dma.virt,
EFC_NODE_SEND_LS_ACC_PLOGI);
/* sm: domain->attached / efc_node_attach */
rc = efc_node_attach(node);
efc_node_transition(node, __efc_d_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node,
EFC_EVT_NODE_ATTACH_FAIL, NULL);
break;
}
case EFC_EVT_PRLI_RCVD:
/* I, or I+T */
/* sent PLOGI and before completion was seen, received the
* PRLI from the remote node (WCQEs and RCQEs come in on
* different queues and order of processing cannot be assumed)
* Save OXID so PRLI can be sent after the attach and continue
* to wait for PLOGI response
*/
efc_process_prli_payload(node, cbdata->payload->dma.virt);
efc_send_ls_acc_after_attach(node,
cbdata->header->dma.virt,
EFC_NODE_SEND_LS_ACC_PRLI);
efc_node_transition(node, __efc_d_wait_plogi_rsp_recvd_prli,
NULL);
break;
case EFC_EVT_LOGO_RCVD: /* why don't we do a shutdown here?? */
case EFC_EVT_PRLO_RCVD:
case EFC_EVT_PDISC_RCVD:
case EFC_EVT_FDISC_RCVD:
case EFC_EVT_ADISC_RCVD:
case EFC_EVT_RSCN_RCVD:
case EFC_EVT_SCR_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
node_printf(node, "%s received, sending reject\n",
efc_sm_event_name(evt));
efc_send_ls_rjt(node, be16_to_cpu(hdr->fh_ox_id),
ELS_RJT_UNAB, ELS_EXPL_PLOGI_REQD, 0);
break;
}
case EFC_EVT_SRRS_ELS_REQ_OK: /* PLOGI response received */
/* Completion from PLOGI sent */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / save sparams, efc_node_attach */
efc_node_save_sparms(node, cbdata->els_rsp.virt);
rc = efc_node_attach(node);
efc_node_transition(node, __efc_d_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node,
EFC_EVT_NODE_ATTACH_FAIL, NULL);
break;
case EFC_EVT_SRRS_ELS_REQ_FAIL: /* PLOGI response received */
/* PLOGI failed, shutdown the node */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
break;
case EFC_EVT_SRRS_ELS_REQ_RJT:
/* Our PLOGI was rejected, this is ok in some cases */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
break;
case EFC_EVT_FCP_CMD_RCVD: {
/* not logged in yet and outstanding PLOGI so don't send LOGO,
* just drop
*/
node_printf(node, "FCP_CMND received, drop\n");
break;
}
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_plogi_rsp_recvd_prli(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
int rc;
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
/*
* Since we've received a PRLI, we have a port login and will
* just need to wait for the PLOGI response to do the node
* attach and then we can send the LS_ACC for the PRLI. If,
* during this time, we receive FCP_CMNDs (which is possible
* since we've already sent a PRLI and our peer may have
* accepted). At this time, we are not waiting on any other
* unsolicited frames to continue with the login process. Thus,
* it will not hurt to hold frames here.
*/
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_REQ_OK: /* PLOGI response received */
/* Completion from PLOGI sent */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / save sparams, efc_node_attach */
efc_node_save_sparms(node, cbdata->els_rsp.virt);
rc = efc_node_attach(node);
efc_node_transition(node, __efc_d_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node, EFC_EVT_NODE_ATTACH_FAIL,
NULL);
break;
case EFC_EVT_SRRS_ELS_REQ_FAIL: /* PLOGI response received */
case EFC_EVT_SRRS_ELS_REQ_RJT:
/* PLOGI failed, shutdown the node */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_domain_attach(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
int rc;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_DOMAIN_ATTACH_OK:
WARN_ON(!node->nport->domain->attached);
/* sm: / efc_node_attach */
rc = efc_node_attach(node);
efc_node_transition(node, __efc_d_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node, EFC_EVT_NODE_ATTACH_FAIL,
NULL);
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_topology_notify(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
int rc;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_NPORT_TOPOLOGY_NOTIFY: {
enum efc_nport_topology *topology = arg;
WARN_ON(node->nport->domain->attached);
WARN_ON(node->send_ls_acc != EFC_NODE_SEND_LS_ACC_PLOGI);
node_printf(node, "topology notification, topology=%d\n",
*topology);
/* At the time the PLOGI was received, the topology was unknown,
* so we didn't know which node would perform the domain attach:
* 1. The node from which the PLOGI was sent (p2p) or
* 2. The node to which the FLOGI was sent (fabric).
*/
if (*topology == EFC_NPORT_TOPO_P2P) {
/* if this is p2p, need to attach to the domain using
* the d_id from the PLOGI received
*/
efc_domain_attach(node->nport->domain,
node->ls_acc_did);
}
/* else, if this is fabric, the domain attach
* should be performed by the fabric node (node sending FLOGI);
* just wait for attach to complete
*/
efc_node_transition(node, __efc_d_wait_domain_attach, NULL);
break;
}
case EFC_EVT_DOMAIN_ATTACH_OK:
WARN_ON(!node->nport->domain->attached);
node_printf(node, "domain attach ok\n");
/* sm: / efc_node_attach */
rc = efc_node_attach(node);
efc_node_transition(node, __efc_d_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node,
EFC_EVT_NODE_ATTACH_FAIL, NULL);
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_node_attach(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_NODE_ATTACH_OK:
node->attached = true;
switch (node->send_ls_acc) {
case EFC_NODE_SEND_LS_ACC_PLOGI: {
/* sm: send_plogi_acc is set / send PLOGI acc */
/* Normal case for T, or I+T */
efc_send_plogi_acc(node, node->ls_acc_oxid);
efc_node_transition(node, __efc_d_wait_plogi_acc_cmpl,
NULL);
node->send_ls_acc = EFC_NODE_SEND_LS_ACC_NONE;
node->ls_acc_io = NULL;
break;
}
case EFC_NODE_SEND_LS_ACC_PRLI: {
efc_d_send_prli_rsp(node, node->ls_acc_oxid);
node->send_ls_acc = EFC_NODE_SEND_LS_ACC_NONE;
node->ls_acc_io = NULL;
break;
}
case EFC_NODE_SEND_LS_ACC_NONE:
default:
/* Normal case for I */
/* sm: send_plogi_acc is not set / send PLOGI acc */
efc_node_transition(node,
__efc_d_port_logged_in, NULL);
break;
}
break;
case EFC_EVT_NODE_ATTACH_FAIL:
/* node attach failed, shutdown the node */
node->attached = false;
node_printf(node, "node attach failed\n");
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_node_transition(node, __efc_d_initiate_shutdown, NULL);
break;
/* Handle shutdown events */
case EFC_EVT_SHUTDOWN:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_node_transition(node, __efc_d_wait_attach_evt_shutdown,
NULL);
break;
case EFC_EVT_SHUTDOWN_EXPLICIT_LOGO:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
node->shutdown_reason = EFC_NODE_SHUTDOWN_EXPLICIT_LOGO;
efc_node_transition(node, __efc_d_wait_attach_evt_shutdown,
NULL);
break;
case EFC_EVT_SHUTDOWN_IMPLICIT_LOGO:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
node->shutdown_reason = EFC_NODE_SHUTDOWN_IMPLICIT_LOGO;
efc_node_transition(node,
__efc_d_wait_attach_evt_shutdown, NULL);
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_attach_evt_shutdown(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
/* wait for any of these attach events and then shutdown */
case EFC_EVT_NODE_ATTACH_OK:
node->attached = true;
node_printf(node, "Attach evt=%s, proceed to shutdown\n",
efc_sm_event_name(evt));
efc_node_transition(node, __efc_d_initiate_shutdown, NULL);
break;
case EFC_EVT_NODE_ATTACH_FAIL:
/* node attach failed, shutdown the node */
node->attached = false;
node_printf(node, "Attach evt=%s, proceed to shutdown\n",
efc_sm_event_name(evt));
efc_node_transition(node, __efc_d_initiate_shutdown, NULL);
break;
/* ignore shutdown events as we're already in shutdown path */
case EFC_EVT_SHUTDOWN:
/* have default shutdown event take precedence */
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
fallthrough;
case EFC_EVT_SHUTDOWN_EXPLICIT_LOGO:
case EFC_EVT_SHUTDOWN_IMPLICIT_LOGO:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_port_logged_in(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
/* Normal case for I or I+T */
if (node->nport->enable_ini &&
!(node->rnode.fc_id != FC_FID_DOM_MGR)) {
/* sm: if enable_ini / send PRLI */
efc_send_prli(node);
/* can now expect ELS_REQ_OK/FAIL/RJT */
}
break;
case EFC_EVT_FCP_CMD_RCVD: {
break;
}
case EFC_EVT_PRLI_RCVD: {
/* Normal case for T or I+T */
struct fc_frame_header *hdr = cbdata->header->dma.virt;
struct {
struct fc_els_prli prli;
struct fc_els_spp sp;
} *pp;
pp = cbdata->payload->dma.virt;
if (pp->sp.spp_type != FC_TYPE_FCP) {
/*Only FCP is supported*/
efc_send_ls_rjt(node, be16_to_cpu(hdr->fh_ox_id),
ELS_RJT_UNAB, ELS_EXPL_UNSUPR, 0);
break;
}
efc_process_prli_payload(node, cbdata->payload->dma.virt);
efc_d_send_prli_rsp(node, be16_to_cpu(hdr->fh_ox_id));
break;
}
case EFC_EVT_NODE_SESS_REG_OK:
if (node->send_ls_acc == EFC_NODE_SEND_LS_ACC_PRLI)
efc_send_prli_acc(node, node->ls_acc_oxid);
node->send_ls_acc = EFC_NODE_SEND_LS_ACC_NONE;
efc_node_transition(node, __efc_d_device_ready, NULL);
break;
case EFC_EVT_NODE_SESS_REG_FAIL:
efc_send_ls_rjt(node, node->ls_acc_oxid, ELS_RJT_UNAB,
ELS_EXPL_UNSUPR, 0);
node->send_ls_acc = EFC_NODE_SEND_LS_ACC_NONE;
break;
case EFC_EVT_SRRS_ELS_REQ_OK: { /* PRLI response */
/* Normal case for I or I+T */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PRLI,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / process PRLI payload */
efc_process_prli_payload(node, cbdata->els_rsp.virt);
efc_node_transition(node, __efc_d_device_ready, NULL);
break;
}
case EFC_EVT_SRRS_ELS_REQ_FAIL: { /* PRLI response failed */
/* I, I+T, assume some link failure, shutdown node */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PRLI,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
break;
}
case EFC_EVT_SRRS_ELS_REQ_RJT: {
/* PRLI rejected by remote
* Normal for I, I+T (connected to an I)
* Node doesn't want to be a target, stay here and wait for a
* PRLI from the remote node
* if it really wants to connect to us as target
*/
if (efc_node_check_els_req(ctx, evt, arg, ELS_PRLI,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
break;
}
case EFC_EVT_SRRS_ELS_CMPL_OK: {
/* Normal T, I+T, target-server rejected the process login */
/* This would be received only in the case where we sent
* LS_RJT for the PRLI, so
* do nothing. (note: as T only we could shutdown the node)
*/
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
break;
}
case EFC_EVT_PLOGI_RCVD: {
/*sm: / save sparams, set send_plogi_acc,
*post implicit logout
* Save plogi parameters
*/
efc_node_save_sparms(node, cbdata->payload->dma.virt);
efc_send_ls_acc_after_attach(node,
cbdata->header->dma.virt,
EFC_NODE_SEND_LS_ACC_PLOGI);
/* Restart node attach with new service parameters,
* and send ACC
*/
efc_node_post_event(node, EFC_EVT_SHUTDOWN_IMPLICIT_LOGO,
NULL);
break;
}
case EFC_EVT_LOGO_RCVD: {
/* I, T, I+T */
struct fc_frame_header *hdr = cbdata->header->dma.virt;
node_printf(node, "%s received attached=%d\n",
efc_sm_event_name(evt),
node->attached);
/* sm: / send LOGO acc */
efc_send_logo_acc(node, be16_to_cpu(hdr->fh_ox_id));
efc_node_transition(node, __efc_d_wait_logo_acc_cmpl, NULL);
break;
}
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_logo_acc_cmpl(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_CMPL_OK:
case EFC_EVT_SRRS_ELS_CMPL_FAIL:
/* sm: / post explicit logout */
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
efc_node_post_event(node,
EFC_EVT_SHUTDOWN_EXPLICIT_LOGO, NULL);
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_device_ready(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
struct efc *efc = node->efc;
efc_node_evt_set(ctx, evt, __func__);
if (evt != EFC_EVT_FCP_CMD_RCVD)
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
node->fcp_enabled = true;
if (node->targ) {
efc_log_info(efc,
"[%s] found (target) WWPN %s WWNN %s\n",
node->display_name,
node->wwpn, node->wwnn);
if (node->nport->enable_ini)
efc->tt.scsi_new_node(efc, node);
}
break;
case EFC_EVT_EXIT:
node->fcp_enabled = false;
break;
case EFC_EVT_PLOGI_RCVD: {
/* sm: / save sparams, set send_plogi_acc, post implicit
* logout
* Save plogi parameters
*/
efc_node_save_sparms(node, cbdata->payload->dma.virt);
efc_send_ls_acc_after_attach(node,
cbdata->header->dma.virt,
EFC_NODE_SEND_LS_ACC_PLOGI);
/*
* Restart node attach with new service parameters,
* and send ACC
*/
efc_node_post_event(node,
EFC_EVT_SHUTDOWN_IMPLICIT_LOGO, NULL);
break;
}
case EFC_EVT_PRLI_RCVD: {
/* T, I+T: remote initiator is slow to get started */
struct fc_frame_header *hdr = cbdata->header->dma.virt;
struct {
struct fc_els_prli prli;
struct fc_els_spp sp;
} *pp;
pp = cbdata->payload->dma.virt;
if (pp->sp.spp_type != FC_TYPE_FCP) {
/*Only FCP is supported*/
efc_send_ls_rjt(node, be16_to_cpu(hdr->fh_ox_id),
ELS_RJT_UNAB, ELS_EXPL_UNSUPR, 0);
break;
}
efc_process_prli_payload(node, cbdata->payload->dma.virt);
efc_send_prli_acc(node, be16_to_cpu(hdr->fh_ox_id));
break;
}
case EFC_EVT_PRLO_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
/* sm: / send PRLO acc */
efc_send_prlo_acc(node, be16_to_cpu(hdr->fh_ox_id));
/* need implicit logout? */
break;
}
case EFC_EVT_LOGO_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
node_printf(node, "%s received attached=%d\n",
efc_sm_event_name(evt), node->attached);
/* sm: / send LOGO acc */
efc_send_logo_acc(node, be16_to_cpu(hdr->fh_ox_id));
efc_node_transition(node, __efc_d_wait_logo_acc_cmpl, NULL);
break;
}
case EFC_EVT_ADISC_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
/* sm: / send ADISC acc */
efc_send_adisc_acc(node, be16_to_cpu(hdr->fh_ox_id));
break;
}
case EFC_EVT_ABTS_RCVD:
/* sm: / process ABTS */
efc_log_err(efc, "Unexpected event:%s\n",
efc_sm_event_name(evt));
break;
case EFC_EVT_NODE_ACTIVE_IO_LIST_EMPTY:
break;
case EFC_EVT_NODE_REFOUND:
break;
case EFC_EVT_NODE_MISSING:
if (node->nport->enable_rscn)
efc_node_transition(node, __efc_d_device_gone, NULL);
break;
case EFC_EVT_SRRS_ELS_CMPL_OK:
/* T, or I+T, PRLI accept completed ok */
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
break;
case EFC_EVT_SRRS_ELS_CMPL_FAIL:
/* T, or I+T, PRLI accept failed to complete */
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
node_printf(node, "Failed to send PRLI LS_ACC\n");
break;
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_device_gone(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
struct efc *efc = node->efc;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER: {
int rc = EFC_SCSI_CALL_COMPLETE;
int rc_2 = EFC_SCSI_CALL_COMPLETE;
static const char * const labels[] = {
"none", "initiator", "target", "initiator+target"
};
efc_log_info(efc, "[%s] missing (%s) WWPN %s WWNN %s\n",
node->display_name,
labels[(node->targ << 1) | (node->init)],
node->wwpn, node->wwnn);
switch (efc_node_get_enable(node)) {
case EFC_NODE_ENABLE_T_TO_T:
case EFC_NODE_ENABLE_I_TO_T:
case EFC_NODE_ENABLE_IT_TO_T:
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_TARGET_MISSING);
break;
case EFC_NODE_ENABLE_T_TO_I:
case EFC_NODE_ENABLE_I_TO_I:
case EFC_NODE_ENABLE_IT_TO_I:
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_INITIATOR_MISSING);
break;
case EFC_NODE_ENABLE_T_TO_IT:
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_INITIATOR_MISSING);
break;
case EFC_NODE_ENABLE_I_TO_IT:
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_TARGET_MISSING);
break;
case EFC_NODE_ENABLE_IT_TO_IT:
rc = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_INITIATOR_MISSING);
rc_2 = efc->tt.scsi_del_node(efc, node,
EFC_SCSI_TARGET_MISSING);
break;
default:
rc = EFC_SCSI_CALL_COMPLETE;
break;
}
if (rc == EFC_SCSI_CALL_COMPLETE &&
rc_2 == EFC_SCSI_CALL_COMPLETE)
efc_node_post_event(node, EFC_EVT_SHUTDOWN, NULL);
break;
}
case EFC_EVT_NODE_REFOUND:
/* two approaches, reauthenticate with PLOGI/PRLI, or ADISC */
/* reauthenticate with PLOGI/PRLI */
/* efc_node_transition(node, __efc_d_discovered, NULL); */
/* reauthenticate with ADISC */
/* sm: / send ADISC */
efc_send_adisc(node);
efc_node_transition(node, __efc_d_wait_adisc_rsp, NULL);
break;
case EFC_EVT_PLOGI_RCVD: {
/* sm: / save sparams, set send_plogi_acc, post implicit
* logout
* Save plogi parameters
*/
efc_node_save_sparms(node, cbdata->payload->dma.virt);
efc_send_ls_acc_after_attach(node,
cbdata->header->dma.virt,
EFC_NODE_SEND_LS_ACC_PLOGI);
/*
* Restart node attach with new service parameters, and send
* ACC
*/
efc_node_post_event(node, EFC_EVT_SHUTDOWN_IMPLICIT_LOGO,
NULL);
break;
}
case EFC_EVT_FCP_CMD_RCVD: {
/* most likely a stale frame (received prior to link down),
* if attempt to send LOGO, will probably timeout and eat
* up 20s; thus, drop FCP_CMND
*/
node_printf(node, "FCP_CMND received, drop\n");
break;
}
case EFC_EVT_LOGO_RCVD: {
/* I, T, I+T */
struct fc_frame_header *hdr = cbdata->header->dma.virt;
node_printf(node, "%s received attached=%d\n",
efc_sm_event_name(evt), node->attached);
/* sm: / send LOGO acc */
efc_send_logo_acc(node, be16_to_cpu(hdr->fh_ox_id));
efc_node_transition(node, __efc_d_wait_logo_acc_cmpl, NULL);
break;
}
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
void
__efc_d_wait_adisc_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK:
if (efc_node_check_els_req(ctx, evt, arg, ELS_ADISC,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
efc_node_transition(node, __efc_d_device_ready, NULL);
break;
case EFC_EVT_SRRS_ELS_REQ_RJT:
/* received an LS_RJT, in this case, send shutdown
* (explicit logo) event which will unregister the node,
* and start over with PLOGI
*/
if (efc_node_check_els_req(ctx, evt, arg, ELS_ADISC,
__efc_d_common, __func__))
return;
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / post explicit logout */
efc_node_post_event(node,
EFC_EVT_SHUTDOWN_EXPLICIT_LOGO,
NULL);
break;
case EFC_EVT_LOGO_RCVD: {
/* In this case, we have the equivalent of an LS_RJT for
* the ADISC, so we need to abort the ADISC, and re-login
* with PLOGI
*/
/* sm: / request abort, send LOGO acc */
struct fc_frame_header *hdr = cbdata->header->dma.virt;
node_printf(node, "%s received attached=%d\n",
efc_sm_event_name(evt), node->attached);
efc_send_logo_acc(node, be16_to_cpu(hdr->fh_ox_id));
efc_node_transition(node, __efc_d_wait_logo_acc_cmpl, NULL);
break;
}
default:
__efc_d_common(__func__, ctx, evt, arg);
}
}
|
linux-master
|
drivers/scsi/elx/libefc/efc_device.c
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
/*
* This file implements remote node state machines for:
* - Fabric logins.
* - Fabric controller events.
* - Name/directory services interaction.
* - Point-to-point logins.
*/
/*
* fabric_sm Node State Machine: Fabric States
* ns_sm Node State Machine: Name/Directory Services States
* p2p_sm Node State Machine: Point-to-Point Node States
*/
#include "efc.h"
static void
efc_fabric_initiate_shutdown(struct efc_node *node)
{
struct efc *efc = node->efc;
node->els_io_enabled = false;
if (node->attached) {
int rc;
/* issue hw node free; don't care if succeeds right away
* or sometime later, will check node->attached later in
* shutdown process
*/
rc = efc_cmd_node_detach(efc, &node->rnode);
if (rc < 0) {
node_printf(node, "Failed freeing HW node, rc=%d\n",
rc);
}
}
/*
* node has either been detached or is in the process of being detached,
* call common node's initiate cleanup function
*/
efc_node_initiate_cleanup(node);
}
static void
__efc_fabric_common(const char *funcname, struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = NULL;
node = ctx->app;
switch (evt) {
case EFC_EVT_DOMAIN_ATTACH_OK:
break;
case EFC_EVT_SHUTDOWN:
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
break;
default:
/* call default event handler common to all nodes */
__efc_node_common(funcname, ctx, evt, arg);
}
}
void
__efc_fabric_init(struct efc_sm_ctx *ctx, enum efc_sm_event evt,
void *arg)
{
struct efc_node *node = ctx->app;
struct efc *efc = node->efc;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_REENTER:
efc_log_debug(efc, ">>> reenter !!\n");
fallthrough;
case EFC_EVT_ENTER:
/* send FLOGI */
efc_send_flogi(node);
efc_node_transition(node, __efc_fabric_flogi_wait_rsp, NULL);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
efc_fabric_set_topology(struct efc_node *node,
enum efc_nport_topology topology)
{
node->nport->topology = topology;
}
void
efc_fabric_notify_topology(struct efc_node *node)
{
struct efc_node *tmp_node;
unsigned long index;
/*
* now loop through the nodes in the nport
* and send topology notification
*/
xa_for_each(&node->nport->lookup, index, tmp_node) {
if (tmp_node != node) {
efc_node_post_event(tmp_node,
EFC_EVT_NPORT_TOPOLOGY_NOTIFY,
&node->nport->topology);
}
}
}
static bool efc_rnode_is_nport(struct fc_els_flogi *rsp)
{
return !(ntohs(rsp->fl_csp.sp_features) & FC_SP_FT_FPORT);
}
void
__efc_fabric_flogi_wait_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK: {
if (efc_node_check_els_req(ctx, evt, arg, ELS_FLOGI,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
memcpy(node->nport->domain->flogi_service_params,
cbdata->els_rsp.virt,
sizeof(struct fc_els_flogi));
/* Check to see if the fabric is an F_PORT or and N_PORT */
if (!efc_rnode_is_nport(cbdata->els_rsp.virt)) {
/* sm: if not nport / efc_domain_attach */
/* ext_status has the fc_id, attach domain */
efc_fabric_set_topology(node, EFC_NPORT_TOPO_FABRIC);
efc_fabric_notify_topology(node);
WARN_ON(node->nport->domain->attached);
efc_domain_attach(node->nport->domain,
cbdata->ext_status);
efc_node_transition(node,
__efc_fabric_wait_domain_attach,
NULL);
break;
}
/* sm: if nport and p2p_winner / efc_domain_attach */
efc_fabric_set_topology(node, EFC_NPORT_TOPO_P2P);
if (efc_p2p_setup(node->nport)) {
node_printf(node,
"p2p setup failed, shutting down node\n");
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
break;
}
if (node->nport->p2p_winner) {
efc_node_transition(node,
__efc_p2p_wait_domain_attach,
NULL);
if (node->nport->domain->attached &&
!node->nport->domain->domain_notify_pend) {
/*
* already attached,
* just send ATTACH_OK
*/
node_printf(node,
"p2p winner, domain already attached\n");
efc_node_post_event(node,
EFC_EVT_DOMAIN_ATTACH_OK,
NULL);
}
} else {
/*
* peer is p2p winner;
* PLOGI will be received on the
* remote SID=1 node;
* this node has served its purpose
*/
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
}
break;
}
case EFC_EVT_ELS_REQ_ABORTED:
case EFC_EVT_SRRS_ELS_REQ_RJT:
case EFC_EVT_SRRS_ELS_REQ_FAIL: {
struct efc_nport *nport = node->nport;
/*
* with these errors, we have no recovery,
* so shutdown the nport, leave the link
* up and the domain ready
*/
if (efc_node_check_els_req(ctx, evt, arg, ELS_FLOGI,
__efc_fabric_common, __func__)) {
return;
}
node_printf(node,
"FLOGI failed evt=%s, shutting down nport [%s]\n",
efc_sm_event_name(evt), nport->display_name);
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
efc_sm_post_event(&nport->sm, EFC_EVT_SHUTDOWN, NULL);
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_vport_fabric_init(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
/* sm: / send FDISC */
efc_send_fdisc(node);
efc_node_transition(node, __efc_fabric_fdisc_wait_rsp, NULL);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_fabric_fdisc_wait_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK: {
/* fc_id is in ext_status */
if (efc_node_check_els_req(ctx, evt, arg, ELS_FDISC,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / efc_nport_attach */
efc_nport_attach(node->nport, cbdata->ext_status);
efc_node_transition(node, __efc_fabric_wait_domain_attach,
NULL);
break;
}
case EFC_EVT_SRRS_ELS_REQ_RJT:
case EFC_EVT_SRRS_ELS_REQ_FAIL: {
if (efc_node_check_els_req(ctx, evt, arg, ELS_FDISC,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
efc_log_err(node->efc, "FDISC failed, shutting down nport\n");
/* sm: / shutdown nport */
efc_sm_post_event(&node->nport->sm, EFC_EVT_SHUTDOWN, NULL);
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
static int
efc_start_ns_node(struct efc_nport *nport)
{
struct efc_node *ns;
/* Instantiate a name services node */
ns = efc_node_find(nport, FC_FID_DIR_SERV);
if (!ns) {
ns = efc_node_alloc(nport, FC_FID_DIR_SERV, false, false);
if (!ns)
return -EIO;
}
/*
* for found ns, should we be transitioning from here?
* breaks transition only
* 1. from within state machine or
* 2. if after alloc
*/
if (ns->efc->nodedb_mask & EFC_NODEDB_PAUSE_NAMESERVER)
efc_node_pause(ns, __efc_ns_init);
else
efc_node_transition(ns, __efc_ns_init, NULL);
return 0;
}
static int
efc_start_fabctl_node(struct efc_nport *nport)
{
struct efc_node *fabctl;
fabctl = efc_node_find(nport, FC_FID_FCTRL);
if (!fabctl) {
fabctl = efc_node_alloc(nport, FC_FID_FCTRL,
false, false);
if (!fabctl)
return -EIO;
}
/*
* for found ns, should we be transitioning from here?
* breaks transition only
* 1. from within state machine or
* 2. if after alloc
*/
efc_node_transition(fabctl, __efc_fabctl_init, NULL);
return 0;
}
void
__efc_fabric_wait_domain_attach(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_DOMAIN_ATTACH_OK:
case EFC_EVT_NPORT_ATTACH_OK: {
int rc;
rc = efc_start_ns_node(node->nport);
if (rc)
return;
/* sm: if enable_ini / start fabctl node */
/* Instantiate the fabric controller (sends SCR) */
if (node->nport->enable_rscn) {
rc = efc_start_fabctl_node(node->nport);
if (rc)
return;
}
efc_node_transition(node, __efc_fabric_idle, NULL);
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_fabric_idle(struct efc_sm_ctx *ctx, enum efc_sm_event evt,
void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_DOMAIN_ATTACH_OK:
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_ns_init(struct efc_sm_ctx *ctx, enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
/* sm: / send PLOGI */
efc_send_plogi(node);
efc_node_transition(node, __efc_ns_plogi_wait_rsp, NULL);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_ns_plogi_wait_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK: {
int rc;
/* Save service parameters */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / save sparams, efc_node_attach */
efc_node_save_sparms(node, cbdata->els_rsp.virt);
rc = efc_node_attach(node);
efc_node_transition(node, __efc_ns_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node, EFC_EVT_NODE_ATTACH_FAIL,
NULL);
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_ns_wait_node_attach(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_NODE_ATTACH_OK:
node->attached = true;
/* sm: / send RFTID */
efc_ns_send_rftid(node);
efc_node_transition(node, __efc_ns_rftid_wait_rsp, NULL);
break;
case EFC_EVT_NODE_ATTACH_FAIL:
/* node attach failed, shutdown the node */
node->attached = false;
node_printf(node, "Node attach failed\n");
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
break;
case EFC_EVT_SHUTDOWN:
node_printf(node, "Shutdown event received\n");
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_node_transition(node,
__efc_fabric_wait_attach_evt_shutdown,
NULL);
break;
/*
* if receive RSCN just ignore,
* we haven't sent GID_PT yet (ACC sent by fabctl node)
*/
case EFC_EVT_RSCN_RCVD:
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_fabric_wait_attach_evt_shutdown(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
/* wait for any of these attach events and then shutdown */
case EFC_EVT_NODE_ATTACH_OK:
node->attached = true;
node_printf(node, "Attach evt=%s, proceed to shutdown\n",
efc_sm_event_name(evt));
efc_fabric_initiate_shutdown(node);
break;
case EFC_EVT_NODE_ATTACH_FAIL:
node->attached = false;
node_printf(node, "Attach evt=%s, proceed to shutdown\n",
efc_sm_event_name(evt));
efc_fabric_initiate_shutdown(node);
break;
/* ignore shutdown event as we're already in shutdown path */
case EFC_EVT_SHUTDOWN:
node_printf(node, "Shutdown event received\n");
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_ns_rftid_wait_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK:
if (efc_node_check_ns_req(ctx, evt, arg, FC_NS_RFT_ID,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / send RFFID */
efc_ns_send_rffid(node);
efc_node_transition(node, __efc_ns_rffid_wait_rsp, NULL);
break;
/*
* if receive RSCN just ignore,
* we haven't sent GID_PT yet (ACC sent by fabctl node)
*/
case EFC_EVT_RSCN_RCVD:
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_ns_rffid_wait_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
/*
* Waits for an RFFID response event;
* if rscn enabled, a GIDPT name services request is issued.
*/
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK: {
if (efc_node_check_ns_req(ctx, evt, arg, FC_NS_RFF_ID,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
if (node->nport->enable_rscn) {
/* sm: if enable_rscn / send GIDPT */
efc_ns_send_gidpt(node);
efc_node_transition(node, __efc_ns_gidpt_wait_rsp,
NULL);
} else {
/* if 'T' only, we're done, go to idle */
efc_node_transition(node, __efc_ns_idle, NULL);
}
break;
}
/*
* if receive RSCN just ignore,
* we haven't sent GID_PT yet (ACC sent by fabctl node)
*/
case EFC_EVT_RSCN_RCVD:
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
static int
efc_process_gidpt_payload(struct efc_node *node,
void *data, u32 gidpt_len)
{
u32 i, j;
struct efc_node *newnode;
struct efc_nport *nport = node->nport;
struct efc *efc = node->efc;
u32 port_id = 0, port_count, plist_count;
struct efc_node *n;
struct efc_node **active_nodes;
int residual;
struct {
struct fc_ct_hdr hdr;
struct fc_gid_pn_resp pn_rsp;
} *rsp;
struct fc_gid_pn_resp *gidpt;
unsigned long index;
rsp = data;
gidpt = &rsp->pn_rsp;
residual = be16_to_cpu(rsp->hdr.ct_mr_size);
if (residual != 0)
efc_log_debug(node->efc, "residual is %u words\n", residual);
if (be16_to_cpu(rsp->hdr.ct_cmd) == FC_FS_RJT) {
node_printf(node,
"GIDPT request failed: rsn x%x rsn_expl x%x\n",
rsp->hdr.ct_reason, rsp->hdr.ct_explan);
return -EIO;
}
plist_count = (gidpt_len - sizeof(struct fc_ct_hdr)) / sizeof(*gidpt);
/* Count the number of nodes */
port_count = 0;
xa_for_each(&nport->lookup, index, n) {
port_count++;
}
/* Allocate a buffer for all nodes */
active_nodes = kcalloc(port_count, sizeof(*active_nodes), GFP_ATOMIC);
if (!active_nodes) {
node_printf(node, "efc_malloc failed\n");
return -EIO;
}
/* Fill buffer with fc_id of active nodes */
i = 0;
xa_for_each(&nport->lookup, index, n) {
port_id = n->rnode.fc_id;
switch (port_id) {
case FC_FID_FLOGI:
case FC_FID_FCTRL:
case FC_FID_DIR_SERV:
break;
default:
if (port_id != FC_FID_DOM_MGR)
active_nodes[i++] = n;
break;
}
}
/* update the active nodes buffer */
for (i = 0; i < plist_count; i++) {
hton24(gidpt[i].fp_fid, port_id);
for (j = 0; j < port_count; j++) {
if (active_nodes[j] &&
port_id == active_nodes[j]->rnode.fc_id) {
active_nodes[j] = NULL;
}
}
if (gidpt[i].fp_resvd & FC_NS_FID_LAST)
break;
}
/* Those remaining in the active_nodes[] are now gone ! */
for (i = 0; i < port_count; i++) {
/*
* if we're an initiator and the remote node
* is a target, then post the node missing event.
* if we're target and we have enabled
* target RSCN, then post the node missing event.
*/
if (!active_nodes[i])
continue;
if ((node->nport->enable_ini && active_nodes[i]->targ) ||
(node->nport->enable_tgt && enable_target_rscn(efc))) {
efc_node_post_event(active_nodes[i],
EFC_EVT_NODE_MISSING, NULL);
} else {
node_printf(node,
"GID_PT: skipping non-tgt port_id x%06x\n",
active_nodes[i]->rnode.fc_id);
}
}
kfree(active_nodes);
for (i = 0; i < plist_count; i++) {
hton24(gidpt[i].fp_fid, port_id);
/* Don't create node for ourselves */
if (port_id == node->rnode.nport->fc_id) {
if (gidpt[i].fp_resvd & FC_NS_FID_LAST)
break;
continue;
}
newnode = efc_node_find(nport, port_id);
if (!newnode) {
if (!node->nport->enable_ini)
continue;
newnode = efc_node_alloc(nport, port_id, false, false);
if (!newnode) {
efc_log_err(efc, "efc_node_alloc() failed\n");
return -EIO;
}
/*
* send PLOGI automatically
* if initiator
*/
efc_node_init_device(newnode, true);
}
if (node->nport->enable_ini && newnode->targ) {
efc_node_post_event(newnode, EFC_EVT_NODE_REFOUND,
NULL);
}
if (gidpt[i].fp_resvd & FC_NS_FID_LAST)
break;
}
return 0;
}
void
__efc_ns_gidpt_wait_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
/*
* Wait for a GIDPT response from the name server. Process the FC_IDs
* that are reported by creating new remote ports, as needed.
*/
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK: {
if (efc_node_check_ns_req(ctx, evt, arg, FC_NS_GID_PT,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / process GIDPT payload */
efc_process_gidpt_payload(node, cbdata->els_rsp.virt,
cbdata->els_rsp.len);
efc_node_transition(node, __efc_ns_idle, NULL);
break;
}
case EFC_EVT_SRRS_ELS_REQ_FAIL: {
/* not much we can do; will retry with the next RSCN */
node_printf(node, "GID_PT failed to complete\n");
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
efc_node_transition(node, __efc_ns_idle, NULL);
break;
}
/* if receive RSCN here, queue up another discovery processing */
case EFC_EVT_RSCN_RCVD: {
node_printf(node, "RSCN received during GID_PT processing\n");
node->rscn_pending = true;
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_ns_idle(struct efc_sm_ctx *ctx, enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
struct efc *efc = node->efc;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
/*
* Wait for RSCN received events (posted from the fabric controller)
* and restart the GIDPT name services query and processing.
*/
switch (evt) {
case EFC_EVT_ENTER:
if (!node->rscn_pending)
break;
node_printf(node, "RSCN pending, restart discovery\n");
node->rscn_pending = false;
fallthrough;
case EFC_EVT_RSCN_RCVD: {
/* sm: / send GIDPT */
/*
* If target RSCN processing is enabled,
* and this is target only (not initiator),
* and tgt_rscn_delay is non-zero,
* then we delay issuing the GID_PT
*/
if (efc->tgt_rscn_delay_msec != 0 &&
!node->nport->enable_ini && node->nport->enable_tgt &&
enable_target_rscn(efc)) {
efc_node_transition(node, __efc_ns_gidpt_delay, NULL);
} else {
efc_ns_send_gidpt(node);
efc_node_transition(node, __efc_ns_gidpt_wait_rsp,
NULL);
}
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
static void
gidpt_delay_timer_cb(struct timer_list *t)
{
struct efc_node *node = from_timer(node, t, gidpt_delay_timer);
del_timer(&node->gidpt_delay_timer);
efc_node_post_event(node, EFC_EVT_GIDPT_DELAY_EXPIRED, NULL);
}
void
__efc_ns_gidpt_delay(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
struct efc *efc = node->efc;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER: {
u64 delay_msec, tmp;
/*
* Compute the delay time.
* Set to tgt_rscn_delay, if the time since last GIDPT
* is less than tgt_rscn_period, then use tgt_rscn_period.
*/
delay_msec = efc->tgt_rscn_delay_msec;
tmp = jiffies_to_msecs(jiffies) - node->time_last_gidpt_msec;
if (tmp < efc->tgt_rscn_period_msec)
delay_msec = efc->tgt_rscn_period_msec;
timer_setup(&node->gidpt_delay_timer, &gidpt_delay_timer_cb,
0);
mod_timer(&node->gidpt_delay_timer,
jiffies + msecs_to_jiffies(delay_msec));
break;
}
case EFC_EVT_GIDPT_DELAY_EXPIRED:
node->time_last_gidpt_msec = jiffies_to_msecs(jiffies);
efc_ns_send_gidpt(node);
efc_node_transition(node, __efc_ns_gidpt_wait_rsp, NULL);
break;
case EFC_EVT_RSCN_RCVD: {
efc_log_debug(efc,
"RSCN received while in GIDPT delay - no action\n");
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_fabctl_init(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
/* no need to login to fabric controller, just send SCR */
efc_send_scr(node);
efc_node_transition(node, __efc_fabctl_wait_scr_rsp, NULL);
break;
case EFC_EVT_NODE_ATTACH_OK:
node->attached = true;
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_fabctl_wait_scr_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
/*
* Fabric controller node state machine:
* Wait for an SCR response from the fabric controller.
*/
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK:
if (efc_node_check_els_req(ctx, evt, arg, ELS_SCR,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
efc_node_transition(node, __efc_fabctl_ready, NULL);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
static void
efc_process_rscn(struct efc_node *node, struct efc_node_cb *cbdata)
{
struct efc *efc = node->efc;
struct efc_nport *nport = node->nport;
struct efc_node *ns;
/* Forward this event to the name-services node */
ns = efc_node_find(nport, FC_FID_DIR_SERV);
if (ns)
efc_node_post_event(ns, EFC_EVT_RSCN_RCVD, cbdata);
else
efc_log_warn(efc, "can't find name server node\n");
}
void
__efc_fabctl_ready(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
/*
* Fabric controller node state machine: Ready.
* In this state, the fabric controller sends a RSCN, which is received
* by this node and is forwarded to the name services node object; and
* the RSCN LS_ACC is sent.
*/
switch (evt) {
case EFC_EVT_RSCN_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
/*
* sm: / process RSCN (forward to name services node),
* send LS_ACC
*/
efc_process_rscn(node, cbdata);
efc_send_ls_acc(node, be16_to_cpu(hdr->fh_ox_id));
efc_node_transition(node, __efc_fabctl_wait_ls_acc_cmpl,
NULL);
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_fabctl_wait_ls_acc_cmpl(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_CMPL_OK:
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
efc_node_transition(node, __efc_fabctl_ready, NULL);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
static uint64_t
efc_get_wwpn(struct fc_els_flogi *sp)
{
return be64_to_cpu(sp->fl_wwnn);
}
static int
efc_rnode_is_winner(struct efc_nport *nport)
{
struct fc_els_flogi *remote_sp;
u64 remote_wwpn;
u64 local_wwpn = nport->wwpn;
u64 wwn_bump = 0;
remote_sp = (struct fc_els_flogi *)nport->domain->flogi_service_params;
remote_wwpn = efc_get_wwpn(remote_sp);
local_wwpn ^= wwn_bump;
efc_log_debug(nport->efc, "r: %llx\n",
be64_to_cpu(remote_sp->fl_wwpn));
efc_log_debug(nport->efc, "l: %llx\n", local_wwpn);
if (remote_wwpn == local_wwpn) {
efc_log_warn(nport->efc,
"WWPN of remote node [%08x %08x] matches local WWPN\n",
(u32)(local_wwpn >> 32ll),
(u32)local_wwpn);
return -1;
}
return (remote_wwpn > local_wwpn);
}
void
__efc_p2p_wait_domain_attach(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
struct efc *efc = node->efc;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_DOMAIN_ATTACH_OK: {
struct efc_nport *nport = node->nport;
struct efc_node *rnode;
/*
* this transient node (SID=0 (recv'd FLOGI)
* or DID=fabric (sent FLOGI))
* is the p2p winner, will use a separate node
* to send PLOGI to peer
*/
WARN_ON(!node->nport->p2p_winner);
rnode = efc_node_find(nport, node->nport->p2p_remote_port_id);
if (rnode) {
/*
* the "other" transient p2p node has
* already kicked off the
* new node from which PLOGI is sent
*/
node_printf(node,
"Node with fc_id x%x already exists\n",
rnode->rnode.fc_id);
} else {
/*
* create new node (SID=1, DID=2)
* from which to send PLOGI
*/
rnode = efc_node_alloc(nport,
nport->p2p_remote_port_id,
false, false);
if (!rnode) {
efc_log_err(efc, "node alloc failed\n");
return;
}
efc_fabric_notify_topology(node);
/* sm: / allocate p2p remote node */
efc_node_transition(rnode, __efc_p2p_rnode_init,
NULL);
}
/*
* the transient node (SID=0 or DID=fabric)
* has served its purpose
*/
if (node->rnode.fc_id == 0) {
/*
* if this is the SID=0 node,
* move to the init state in case peer
* has restarted FLOGI discovery and FLOGI is pending
*/
/* don't send PLOGI on efc_d_init entry */
efc_node_init_device(node, false);
} else {
/*
* if this is the DID=fabric node
* (we initiated FLOGI), shut it down
*/
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
}
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_p2p_rnode_init(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
/* sm: / send PLOGI */
efc_send_plogi(node);
efc_node_transition(node, __efc_p2p_wait_plogi_rsp, NULL);
break;
case EFC_EVT_ABTS_RCVD:
/* sm: send BA_ACC */
efc_send_bls_acc(node, cbdata->header->dma.virt);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_p2p_wait_flogi_acc_cmpl(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_CMPL_OK:
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
/* sm: if p2p_winner / domain_attach */
if (node->nport->p2p_winner) {
efc_node_transition(node,
__efc_p2p_wait_domain_attach,
NULL);
if (!node->nport->domain->attached) {
node_printf(node, "Domain not attached\n");
efc_domain_attach(node->nport->domain,
node->nport->p2p_port_id);
} else {
node_printf(node, "Domain already attached\n");
efc_node_post_event(node,
EFC_EVT_DOMAIN_ATTACH_OK,
NULL);
}
} else {
/* this node has served its purpose;
* we'll expect a PLOGI on a separate
* node (remote SID=0x1); return this node
* to init state in case peer
* restarts discovery -- it may already
* have (pending frames may exist).
*/
/* don't send PLOGI on efc_d_init entry */
efc_node_init_device(node, false);
}
break;
case EFC_EVT_SRRS_ELS_CMPL_FAIL:
/*
* LS_ACC failed, possibly due to link down;
* shutdown node and wait
* for FLOGI discovery to restart
*/
node_printf(node, "FLOGI LS_ACC failed, shutting down\n");
WARN_ON(!node->els_cmpl_cnt);
node->els_cmpl_cnt--;
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
break;
case EFC_EVT_ABTS_RCVD: {
/* sm: / send BA_ACC */
efc_send_bls_acc(node, cbdata->header->dma.virt);
break;
}
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_p2p_wait_plogi_rsp(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_SRRS_ELS_REQ_OK: {
int rc;
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / save sparams, efc_node_attach */
efc_node_save_sparms(node, cbdata->els_rsp.virt);
rc = efc_node_attach(node);
efc_node_transition(node, __efc_p2p_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node, EFC_EVT_NODE_ATTACH_FAIL,
NULL);
break;
}
case EFC_EVT_SRRS_ELS_REQ_FAIL: {
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_fabric_common, __func__)) {
return;
}
node_printf(node, "PLOGI failed, shutting down\n");
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
break;
}
case EFC_EVT_PLOGI_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
/* if we're in external loopback mode, just send LS_ACC */
if (node->efc->external_loopback) {
efc_send_plogi_acc(node, be16_to_cpu(hdr->fh_ox_id));
} else {
/*
* if this isn't external loopback,
* pass to default handler
*/
__efc_fabric_common(__func__, ctx, evt, arg);
}
break;
}
case EFC_EVT_PRLI_RCVD:
/* I, or I+T */
/* sent PLOGI and before completion was seen, received the
* PRLI from the remote node (WCQEs and RCQEs come in on
* different queues and order of processing cannot be assumed)
* Save OXID so PRLI can be sent after the attach and continue
* to wait for PLOGI response
*/
efc_process_prli_payload(node, cbdata->payload->dma.virt);
efc_send_ls_acc_after_attach(node,
cbdata->header->dma.virt,
EFC_NODE_SEND_LS_ACC_PRLI);
efc_node_transition(node, __efc_p2p_wait_plogi_rsp_recvd_prli,
NULL);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_p2p_wait_plogi_rsp_recvd_prli(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
/*
* Since we've received a PRLI, we have a port login and will
* just need to wait for the PLOGI response to do the node
* attach and then we can send the LS_ACC for the PRLI. If,
* during this time, we receive FCP_CMNDs (which is possible
* since we've already sent a PRLI and our peer may have
* accepted).
* At this time, we are not waiting on any other unsolicited
* frames to continue with the login process. Thus, it will not
* hurt to hold frames here.
*/
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_REQ_OK: { /* PLOGI response received */
int rc;
/* Completion from PLOGI sent */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
/* sm: / save sparams, efc_node_attach */
efc_node_save_sparms(node, cbdata->els_rsp.virt);
rc = efc_node_attach(node);
efc_node_transition(node, __efc_p2p_wait_node_attach, NULL);
if (rc < 0)
efc_node_post_event(node, EFC_EVT_NODE_ATTACH_FAIL,
NULL);
break;
}
case EFC_EVT_SRRS_ELS_REQ_FAIL: /* PLOGI response received */
case EFC_EVT_SRRS_ELS_REQ_RJT:
/* PLOGI failed, shutdown the node */
if (efc_node_check_els_req(ctx, evt, arg, ELS_PLOGI,
__efc_fabric_common, __func__)) {
return;
}
WARN_ON(!node->els_req_cnt);
node->els_req_cnt--;
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
void
__efc_p2p_wait_node_attach(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node_cb *cbdata = arg;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_NODE_ATTACH_OK:
node->attached = true;
switch (node->send_ls_acc) {
case EFC_NODE_SEND_LS_ACC_PRLI: {
efc_d_send_prli_rsp(node->ls_acc_io,
node->ls_acc_oxid);
node->send_ls_acc = EFC_NODE_SEND_LS_ACC_NONE;
node->ls_acc_io = NULL;
break;
}
case EFC_NODE_SEND_LS_ACC_PLOGI: /* Can't happen in P2P */
case EFC_NODE_SEND_LS_ACC_NONE:
default:
/* Normal case for I */
/* sm: send_plogi_acc is not set / send PLOGI acc */
efc_node_transition(node, __efc_d_port_logged_in,
NULL);
break;
}
break;
case EFC_EVT_NODE_ATTACH_FAIL:
/* node attach failed, shutdown the node */
node->attached = false;
node_printf(node, "Node attach failed\n");
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_fabric_initiate_shutdown(node);
break;
case EFC_EVT_SHUTDOWN:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
efc_node_transition(node,
__efc_fabric_wait_attach_evt_shutdown,
NULL);
break;
case EFC_EVT_PRLI_RCVD:
node_printf(node, "%s: PRLI received before node is attached\n",
efc_sm_event_name(evt));
efc_process_prli_payload(node, cbdata->payload->dma.virt);
efc_send_ls_acc_after_attach(node,
cbdata->header->dma.virt,
EFC_NODE_SEND_LS_ACC_PRLI);
break;
default:
__efc_fabric_common(__func__, ctx, evt, arg);
}
}
int
efc_p2p_setup(struct efc_nport *nport)
{
struct efc *efc = nport->efc;
int rnode_winner;
rnode_winner = efc_rnode_is_winner(nport);
/* set nport flags to indicate p2p "winner" */
if (rnode_winner == 1) {
nport->p2p_remote_port_id = 0;
nport->p2p_port_id = 0;
nport->p2p_winner = false;
} else if (rnode_winner == 0) {
nport->p2p_remote_port_id = 2;
nport->p2p_port_id = 1;
nport->p2p_winner = true;
} else {
/* no winner; only okay if external loopback enabled */
if (nport->efc->external_loopback) {
/*
* External loopback mode enabled;
* local nport and remote node
* will be registered with an NPortID = 1;
*/
efc_log_debug(efc,
"External loopback mode enabled\n");
nport->p2p_remote_port_id = 1;
nport->p2p_port_id = 1;
nport->p2p_winner = true;
} else {
efc_log_warn(efc,
"failed to determine p2p winner\n");
return rnode_winner;
}
}
return 0;
}
|
linux-master
|
drivers/scsi/elx/libefc/efc_fabric.c
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
/*
* domain_sm Domain State Machine: States
*/
#include "efc.h"
int
efc_domain_cb(void *arg, int event, void *data)
{
struct efc *efc = arg;
struct efc_domain *domain = NULL;
int rc = 0;
unsigned long flags = 0;
if (event != EFC_HW_DOMAIN_FOUND)
domain = data;
/* Accept domain callback events from the user driver */
spin_lock_irqsave(&efc->lock, flags);
switch (event) {
case EFC_HW_DOMAIN_FOUND: {
u64 fcf_wwn = 0;
struct efc_domain_record *drec = data;
/* extract the fcf_wwn */
fcf_wwn = be64_to_cpu(*((__be64 *)drec->wwn));
efc_log_debug(efc, "Domain found: wwn %016llX\n", fcf_wwn);
/* lookup domain, or allocate a new one */
domain = efc->domain;
if (!domain) {
domain = efc_domain_alloc(efc, fcf_wwn);
if (!domain) {
efc_log_err(efc, "efc_domain_alloc() failed\n");
rc = -1;
break;
}
efc_sm_transition(&domain->drvsm, __efc_domain_init,
NULL);
}
efc_domain_post_event(domain, EFC_EVT_DOMAIN_FOUND, drec);
break;
}
case EFC_HW_DOMAIN_LOST:
domain_trace(domain, "EFC_HW_DOMAIN_LOST:\n");
efc->hold_frames = true;
efc_domain_post_event(domain, EFC_EVT_DOMAIN_LOST, NULL);
break;
case EFC_HW_DOMAIN_ALLOC_OK:
domain_trace(domain, "EFC_HW_DOMAIN_ALLOC_OK:\n");
efc_domain_post_event(domain, EFC_EVT_DOMAIN_ALLOC_OK, NULL);
break;
case EFC_HW_DOMAIN_ALLOC_FAIL:
domain_trace(domain, "EFC_HW_DOMAIN_ALLOC_FAIL:\n");
efc_domain_post_event(domain, EFC_EVT_DOMAIN_ALLOC_FAIL,
NULL);
break;
case EFC_HW_DOMAIN_ATTACH_OK:
domain_trace(domain, "EFC_HW_DOMAIN_ATTACH_OK:\n");
efc_domain_post_event(domain, EFC_EVT_DOMAIN_ATTACH_OK, NULL);
break;
case EFC_HW_DOMAIN_ATTACH_FAIL:
domain_trace(domain, "EFC_HW_DOMAIN_ATTACH_FAIL:\n");
efc_domain_post_event(domain,
EFC_EVT_DOMAIN_ATTACH_FAIL, NULL);
break;
case EFC_HW_DOMAIN_FREE_OK:
domain_trace(domain, "EFC_HW_DOMAIN_FREE_OK:\n");
efc_domain_post_event(domain, EFC_EVT_DOMAIN_FREE_OK, NULL);
break;
case EFC_HW_DOMAIN_FREE_FAIL:
domain_trace(domain, "EFC_HW_DOMAIN_FREE_FAIL:\n");
efc_domain_post_event(domain, EFC_EVT_DOMAIN_FREE_FAIL, NULL);
break;
default:
efc_log_warn(efc, "unsupported event %#x\n", event);
}
spin_unlock_irqrestore(&efc->lock, flags);
if (efc->domain && domain->req_accept_frames) {
domain->req_accept_frames = false;
efc->hold_frames = false;
}
return rc;
}
static void
_efc_domain_free(struct kref *arg)
{
struct efc_domain *domain = container_of(arg, struct efc_domain, ref);
struct efc *efc = domain->efc;
if (efc->domain_free_cb)
(*efc->domain_free_cb)(efc, efc->domain_free_cb_arg);
kfree(domain);
}
void
efc_domain_free(struct efc_domain *domain)
{
struct efc *efc;
efc = domain->efc;
/* Hold frames to clear the domain pointer from the xport lookup */
efc->hold_frames = false;
efc_log_debug(efc, "Domain free: wwn %016llX\n", domain->fcf_wwn);
xa_destroy(&domain->lookup);
efc->domain = NULL;
kref_put(&domain->ref, domain->release);
}
struct efc_domain *
efc_domain_alloc(struct efc *efc, uint64_t fcf_wwn)
{
struct efc_domain *domain;
domain = kzalloc(sizeof(*domain), GFP_ATOMIC);
if (!domain)
return NULL;
domain->efc = efc;
domain->drvsm.app = domain;
/* initialize refcount */
kref_init(&domain->ref);
domain->release = _efc_domain_free;
xa_init(&domain->lookup);
INIT_LIST_HEAD(&domain->nport_list);
efc->domain = domain;
domain->fcf_wwn = fcf_wwn;
efc_log_debug(efc, "Domain allocated: wwn %016llX\n", domain->fcf_wwn);
return domain;
}
void
efc_register_domain_free_cb(struct efc *efc,
void (*callback)(struct efc *efc, void *arg),
void *arg)
{
/* Register a callback to be called when the domain is freed */
efc->domain_free_cb = callback;
efc->domain_free_cb_arg = arg;
if (!efc->domain && callback)
(*callback)(efc, arg);
}
static void
__efc_domain_common(const char *funcname, struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_domain *domain = ctx->app;
switch (evt) {
case EFC_EVT_ENTER:
case EFC_EVT_REENTER:
case EFC_EVT_EXIT:
case EFC_EVT_ALL_CHILD_NODES_FREE:
/*
* this can arise if an FLOGI fails on the NPORT,
* and the NPORT is shutdown
*/
break;
default:
efc_log_warn(domain->efc, "%-20s %-20s not handled\n",
funcname, efc_sm_event_name(evt));
}
}
static void
__efc_domain_common_shutdown(const char *funcname, struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_domain *domain = ctx->app;
switch (evt) {
case EFC_EVT_ENTER:
case EFC_EVT_REENTER:
case EFC_EVT_EXIT:
break;
case EFC_EVT_DOMAIN_FOUND:
/* save drec, mark domain_found_pending */
memcpy(&domain->pending_drec, arg,
sizeof(domain->pending_drec));
domain->domain_found_pending = true;
break;
case EFC_EVT_DOMAIN_LOST:
/* unmark domain_found_pending */
domain->domain_found_pending = false;
break;
default:
efc_log_warn(domain->efc, "%-20s %-20s not handled\n",
funcname, efc_sm_event_name(evt));
}
}
#define std_domain_state_decl(...)\
struct efc_domain *domain = NULL;\
struct efc *efc = NULL;\
\
WARN_ON(!ctx || !ctx->app);\
domain = ctx->app;\
WARN_ON(!domain->efc);\
efc = domain->efc
void
__efc_domain_init(struct efc_sm_ctx *ctx, enum efc_sm_event evt,
void *arg)
{
std_domain_state_decl();
domain_sm_trace(domain);
switch (evt) {
case EFC_EVT_ENTER:
domain->attached = false;
break;
case EFC_EVT_DOMAIN_FOUND: {
u32 i;
struct efc_domain_record *drec = arg;
struct efc_nport *nport;
u64 my_wwnn = efc->req_wwnn;
u64 my_wwpn = efc->req_wwpn;
__be64 bewwpn;
if (my_wwpn == 0 || my_wwnn == 0) {
efc_log_debug(efc, "using default hardware WWN config\n");
my_wwpn = efc->def_wwpn;
my_wwnn = efc->def_wwnn;
}
efc_log_debug(efc, "Create nport WWPN %016llX WWNN %016llX\n",
my_wwpn, my_wwnn);
/* Allocate a nport and transition to __efc_nport_allocated */
nport = efc_nport_alloc(domain, my_wwpn, my_wwnn, U32_MAX,
efc->enable_ini, efc->enable_tgt);
if (!nport) {
efc_log_err(efc, "efc_nport_alloc() failed\n");
break;
}
efc_sm_transition(&nport->sm, __efc_nport_allocated, NULL);
bewwpn = cpu_to_be64(nport->wwpn);
/* allocate struct efc_nport object for local port
* Note: drec->fc_id is ALPA from read_topology only if loop
*/
if (efc_cmd_nport_alloc(efc, nport, NULL, (uint8_t *)&bewwpn)) {
efc_log_err(efc, "Can't allocate port\n");
efc_nport_free(nport);
break;
}
domain->is_loop = drec->is_loop;
/*
* If the loop position map includes ALPA == 0,
* then we are in a public loop (NL_PORT)
* Note that the first element of the loopmap[]
* contains the count of elements, and if
* ALPA == 0 is present, it will occupy the first
* location after the count.
*/
domain->is_nlport = drec->map.loop[1] == 0x00;
if (!domain->is_loop) {
/* Initiate HW domain alloc */
if (efc_cmd_domain_alloc(efc, domain, drec->index)) {
efc_log_err(efc,
"Failed to initiate HW domain allocation\n");
break;
}
efc_sm_transition(ctx, __efc_domain_wait_alloc, arg);
break;
}
efc_log_debug(efc, "%s fc_id=%#x speed=%d\n",
drec->is_loop ?
(domain->is_nlport ?
"public-loop" : "loop") : "other",
drec->fc_id, drec->speed);
nport->fc_id = drec->fc_id;
nport->topology = EFC_NPORT_TOPO_FC_AL;
snprintf(nport->display_name, sizeof(nport->display_name),
"s%06x", drec->fc_id);
if (efc->enable_ini) {
u32 count = drec->map.loop[0];
efc_log_debug(efc, "%d position map entries\n",
count);
for (i = 1; i <= count; i++) {
if (drec->map.loop[i] != drec->fc_id) {
struct efc_node *node;
efc_log_debug(efc, "%#x -> %#x\n",
drec->fc_id,
drec->map.loop[i]);
node = efc_node_alloc(nport,
drec->map.loop[i],
false, true);
if (!node) {
efc_log_err(efc,
"efc_node_alloc() failed\n");
break;
}
efc_node_transition(node,
__efc_d_wait_loop,
NULL);
}
}
}
/* Initiate HW domain alloc */
if (efc_cmd_domain_alloc(efc, domain, drec->index)) {
efc_log_err(efc,
"Failed to initiate HW domain allocation\n");
break;
}
efc_sm_transition(ctx, __efc_domain_wait_alloc, arg);
break;
}
default:
__efc_domain_common(__func__, ctx, evt, arg);
}
}
void
__efc_domain_wait_alloc(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
std_domain_state_decl();
domain_sm_trace(domain);
switch (evt) {
case EFC_EVT_DOMAIN_ALLOC_OK: {
struct fc_els_flogi *sp;
struct efc_nport *nport;
nport = domain->nport;
if (WARN_ON(!nport))
return;
sp = (struct fc_els_flogi *)nport->service_params;
/* Save the domain service parameters */
memcpy(domain->service_params + 4, domain->dma.virt,
sizeof(struct fc_els_flogi) - 4);
memcpy(nport->service_params + 4, domain->dma.virt,
sizeof(struct fc_els_flogi) - 4);
/*
* Update the nport's service parameters,
* user might have specified non-default names
*/
sp->fl_wwpn = cpu_to_be64(nport->wwpn);
sp->fl_wwnn = cpu_to_be64(nport->wwnn);
/*
* Take the loop topology path,
* unless we are an NL_PORT (public loop)
*/
if (domain->is_loop && !domain->is_nlport) {
/*
* For loop, we already have our FC ID
* and don't need fabric login.
* Transition to the allocated state and
* post an event to attach to
* the domain. Note that this breaks the
* normal action/transition
* pattern here to avoid a race with the
* domain attach callback.
*/
/* sm: is_loop / domain_attach */
efc_sm_transition(ctx, __efc_domain_allocated, NULL);
__efc_domain_attach_internal(domain, nport->fc_id);
break;
}
{
struct efc_node *node;
/* alloc fabric node, send FLOGI */
node = efc_node_find(nport, FC_FID_FLOGI);
if (node) {
efc_log_err(efc,
"Fabric Controller node already exists\n");
break;
}
node = efc_node_alloc(nport, FC_FID_FLOGI,
false, false);
if (!node) {
efc_log_err(efc,
"Error: efc_node_alloc() failed\n");
} else {
efc_node_transition(node,
__efc_fabric_init, NULL);
}
/* Accept frames */
domain->req_accept_frames = true;
}
/* sm: / start fabric logins */
efc_sm_transition(ctx, __efc_domain_allocated, NULL);
break;
}
case EFC_EVT_DOMAIN_ALLOC_FAIL:
efc_log_err(efc, "%s recv'd waiting for DOMAIN_ALLOC_OK;",
efc_sm_event_name(evt));
efc_log_err(efc, "shutting down domain\n");
domain->req_domain_free = true;
break;
case EFC_EVT_DOMAIN_FOUND:
/* Should not happen */
break;
case EFC_EVT_DOMAIN_LOST:
efc_log_debug(efc,
"%s received while waiting for hw_domain_alloc()\n",
efc_sm_event_name(evt));
efc_sm_transition(ctx, __efc_domain_wait_domain_lost, NULL);
break;
default:
__efc_domain_common(__func__, ctx, evt, arg);
}
}
void
__efc_domain_allocated(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
std_domain_state_decl();
domain_sm_trace(domain);
switch (evt) {
case EFC_EVT_DOMAIN_REQ_ATTACH: {
int rc = 0;
u32 fc_id;
if (WARN_ON(!arg))
return;
fc_id = *((u32 *)arg);
efc_log_debug(efc, "Requesting hw domain attach fc_id x%x\n",
fc_id);
/* Update nport lookup */
rc = xa_err(xa_store(&domain->lookup, fc_id, domain->nport,
GFP_ATOMIC));
if (rc) {
efc_log_err(efc, "Sport lookup store failed: %d\n", rc);
return;
}
/* Update display name for the nport */
efc_node_fcid_display(fc_id, domain->nport->display_name,
sizeof(domain->nport->display_name));
/* Issue domain attach call */
rc = efc_cmd_domain_attach(efc, domain, fc_id);
if (rc) {
efc_log_err(efc, "efc_hw_domain_attach failed: %d\n",
rc);
return;
}
/* sm: / domain_attach */
efc_sm_transition(ctx, __efc_domain_wait_attach, NULL);
break;
}
case EFC_EVT_DOMAIN_FOUND:
/* Should not happen */
efc_log_err(efc, "%s: evt: %d should not happen\n",
__func__, evt);
break;
case EFC_EVT_DOMAIN_LOST: {
efc_log_debug(efc,
"%s received while in EFC_EVT_DOMAIN_REQ_ATTACH\n",
efc_sm_event_name(evt));
if (!list_empty(&domain->nport_list)) {
/*
* if there are nports, transition to
* wait state and send shutdown to each
* nport
*/
struct efc_nport *nport = NULL, *nport_next = NULL;
efc_sm_transition(ctx, __efc_domain_wait_nports_free,
NULL);
list_for_each_entry_safe(nport, nport_next,
&domain->nport_list,
list_entry) {
efc_sm_post_event(&nport->sm,
EFC_EVT_SHUTDOWN, NULL);
}
} else {
/* no nports exist, free domain */
efc_sm_transition(ctx, __efc_domain_wait_shutdown,
NULL);
if (efc_cmd_domain_free(efc, domain))
efc_log_err(efc, "hw_domain_free failed\n");
}
break;
}
default:
__efc_domain_common(__func__, ctx, evt, arg);
}
}
void
__efc_domain_wait_attach(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
std_domain_state_decl();
domain_sm_trace(domain);
switch (evt) {
case EFC_EVT_DOMAIN_ATTACH_OK: {
struct efc_node *node = NULL;
struct efc_nport *nport, *next_nport;
unsigned long index;
/*
* Set domain notify pending state to avoid
* duplicate domain event post
*/
domain->domain_notify_pend = true;
/* Mark as attached */
domain->attached = true;
/* Transition to ready */
/* sm: / forward event to all nports and nodes */
efc_sm_transition(ctx, __efc_domain_ready, NULL);
/* We have an FCFI, so we can accept frames */
domain->req_accept_frames = true;
/*
* Notify all nodes that the domain attach request
* has completed
* Note: nport will have already received notification
* of nport attached as a result of the HW's port attach.
*/
list_for_each_entry_safe(nport, next_nport,
&domain->nport_list, list_entry) {
xa_for_each(&nport->lookup, index, node) {
efc_node_post_event(node,
EFC_EVT_DOMAIN_ATTACH_OK,
NULL);
}
}
domain->domain_notify_pend = false;
break;
}
case EFC_EVT_DOMAIN_ATTACH_FAIL:
efc_log_debug(efc,
"%s received while waiting for hw attach\n",
efc_sm_event_name(evt));
break;
case EFC_EVT_DOMAIN_FOUND:
/* Should not happen */
efc_log_err(efc, "%s: evt: %d should not happen\n",
__func__, evt);
break;
case EFC_EVT_DOMAIN_LOST:
/*
* Domain lost while waiting for an attach to complete,
* go to a state that waits for the domain attach to
* complete, then handle domain lost
*/
efc_sm_transition(ctx, __efc_domain_wait_domain_lost, NULL);
break;
case EFC_EVT_DOMAIN_REQ_ATTACH:
/*
* In P2P we can get an attach request from
* the other FLOGI path, so drop this one
*/
break;
default:
__efc_domain_common(__func__, ctx, evt, arg);
}
}
void
__efc_domain_ready(struct efc_sm_ctx *ctx, enum efc_sm_event evt, void *arg)
{
std_domain_state_decl();
domain_sm_trace(domain);
switch (evt) {
case EFC_EVT_ENTER: {
/* start any pending vports */
if (efc_vport_start(domain)) {
efc_log_debug(domain->efc,
"efc_vport_start didn't start vports\n");
}
break;
}
case EFC_EVT_DOMAIN_LOST: {
if (!list_empty(&domain->nport_list)) {
/*
* if there are nports, transition to wait state
* and send shutdown to each nport
*/
struct efc_nport *nport = NULL, *nport_next = NULL;
efc_sm_transition(ctx, __efc_domain_wait_nports_free,
NULL);
list_for_each_entry_safe(nport, nport_next,
&domain->nport_list,
list_entry) {
efc_sm_post_event(&nport->sm,
EFC_EVT_SHUTDOWN, NULL);
}
} else {
/* no nports exist, free domain */
efc_sm_transition(ctx, __efc_domain_wait_shutdown,
NULL);
if (efc_cmd_domain_free(efc, domain))
efc_log_err(efc, "hw_domain_free failed\n");
}
break;
}
case EFC_EVT_DOMAIN_FOUND:
/* Should not happen */
efc_log_err(efc, "%s: evt: %d should not happen\n",
__func__, evt);
break;
case EFC_EVT_DOMAIN_REQ_ATTACH: {
/* can happen during p2p */
u32 fc_id;
fc_id = *((u32 *)arg);
/* Assume that the domain is attached */
WARN_ON(!domain->attached);
/*
* Verify that the requested FC_ID
* is the same as the one we're working with
*/
WARN_ON(domain->nport->fc_id != fc_id);
break;
}
default:
__efc_domain_common(__func__, ctx, evt, arg);
}
}
void
__efc_domain_wait_nports_free(struct efc_sm_ctx *ctx, enum efc_sm_event evt,
void *arg)
{
std_domain_state_decl();
domain_sm_trace(domain);
/* Wait for nodes to free prior to the domain shutdown */
switch (evt) {
case EFC_EVT_ALL_CHILD_NODES_FREE: {
int rc;
/* sm: / efc_hw_domain_free */
efc_sm_transition(ctx, __efc_domain_wait_shutdown, NULL);
/* Request efc_hw_domain_free and wait for completion */
rc = efc_cmd_domain_free(efc, domain);
if (rc) {
efc_log_err(efc, "efc_hw_domain_free() failed: %d\n",
rc);
}
break;
}
default:
__efc_domain_common_shutdown(__func__, ctx, evt, arg);
}
}
void
__efc_domain_wait_shutdown(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
std_domain_state_decl();
domain_sm_trace(domain);
switch (evt) {
case EFC_EVT_DOMAIN_FREE_OK:
/* sm: / domain_free */
if (domain->domain_found_pending) {
/*
* save fcf_wwn and drec from this domain,
* free current domain and allocate
* a new one with the same fcf_wwn
* could use a SLI-4 "re-register VPI"
* operation here?
*/
u64 fcf_wwn = domain->fcf_wwn;
struct efc_domain_record drec = domain->pending_drec;
efc_log_debug(efc, "Reallocating domain\n");
domain->req_domain_free = true;
domain = efc_domain_alloc(efc, fcf_wwn);
if (!domain) {
efc_log_err(efc,
"efc_domain_alloc() failed\n");
return;
}
/*
* got a new domain; at this point,
* there are at least two domains
* once the req_domain_free flag is processed,
* the associated domain will be removed.
*/
efc_sm_transition(&domain->drvsm, __efc_domain_init,
NULL);
efc_sm_post_event(&domain->drvsm,
EFC_EVT_DOMAIN_FOUND, &drec);
} else {
domain->req_domain_free = true;
}
break;
default:
__efc_domain_common_shutdown(__func__, ctx, evt, arg);
}
}
void
__efc_domain_wait_domain_lost(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
std_domain_state_decl();
domain_sm_trace(domain);
/*
* Wait for the domain alloc/attach completion
* after receiving a domain lost.
*/
switch (evt) {
case EFC_EVT_DOMAIN_ALLOC_OK:
case EFC_EVT_DOMAIN_ATTACH_OK: {
if (!list_empty(&domain->nport_list)) {
/*
* if there are nports, transition to
* wait state and send shutdown to each nport
*/
struct efc_nport *nport = NULL, *nport_next = NULL;
efc_sm_transition(ctx, __efc_domain_wait_nports_free,
NULL);
list_for_each_entry_safe(nport, nport_next,
&domain->nport_list,
list_entry) {
efc_sm_post_event(&nport->sm,
EFC_EVT_SHUTDOWN, NULL);
}
} else {
/* no nports exist, free domain */
efc_sm_transition(ctx, __efc_domain_wait_shutdown,
NULL);
if (efc_cmd_domain_free(efc, domain))
efc_log_err(efc, "hw_domain_free() failed\n");
}
break;
}
case EFC_EVT_DOMAIN_ALLOC_FAIL:
case EFC_EVT_DOMAIN_ATTACH_FAIL:
efc_log_err(efc, "[domain] %-20s: failed\n",
efc_sm_event_name(evt));
break;
default:
__efc_domain_common_shutdown(__func__, ctx, evt, arg);
}
}
void
__efc_domain_attach_internal(struct efc_domain *domain, u32 s_id)
{
memcpy(domain->dma.virt,
((uint8_t *)domain->flogi_service_params) + 4,
sizeof(struct fc_els_flogi) - 4);
(void)efc_sm_post_event(&domain->drvsm, EFC_EVT_DOMAIN_REQ_ATTACH,
&s_id);
}
void
efc_domain_attach(struct efc_domain *domain, u32 s_id)
{
__efc_domain_attach_internal(domain, s_id);
}
int
efc_domain_post_event(struct efc_domain *domain,
enum efc_sm_event event, void *arg)
{
int rc;
bool req_domain_free;
rc = efc_sm_post_event(&domain->drvsm, event, arg);
req_domain_free = domain->req_domain_free;
domain->req_domain_free = false;
if (req_domain_free)
efc_domain_free(domain);
return rc;
}
static void
efct_domain_process_pending(struct efc_domain *domain)
{
struct efc *efc = domain->efc;
struct efc_hw_sequence *seq = NULL;
u32 processed = 0;
unsigned long flags = 0;
for (;;) {
/* need to check for hold frames condition after each frame
* processed because any given frame could cause a transition
* to a state that holds frames
*/
if (efc->hold_frames)
break;
/* Get next frame/sequence */
spin_lock_irqsave(&efc->pend_frames_lock, flags);
if (!list_empty(&efc->pend_frames)) {
seq = list_first_entry(&efc->pend_frames,
struct efc_hw_sequence, list_entry);
list_del(&seq->list_entry);
}
if (!seq) {
processed = efc->pend_frames_processed;
efc->pend_frames_processed = 0;
spin_unlock_irqrestore(&efc->pend_frames_lock, flags);
break;
}
efc->pend_frames_processed++;
spin_unlock_irqrestore(&efc->pend_frames_lock, flags);
/* now dispatch frame(s) to dispatch function */
if (efc_domain_dispatch_frame(domain, seq))
efc->tt.hw_seq_free(efc, seq);
seq = NULL;
}
if (processed != 0)
efc_log_debug(efc, "%u domain frames held and processed\n",
processed);
}
void
efc_dispatch_frame(struct efc *efc, struct efc_hw_sequence *seq)
{
struct efc_domain *domain = efc->domain;
/*
* If we are holding frames or the domain is not yet registered or
* there's already frames on the pending list,
* then add the new frame to pending list
*/
if (!domain || efc->hold_frames || !list_empty(&efc->pend_frames)) {
unsigned long flags = 0;
spin_lock_irqsave(&efc->pend_frames_lock, flags);
INIT_LIST_HEAD(&seq->list_entry);
list_add_tail(&seq->list_entry, &efc->pend_frames);
spin_unlock_irqrestore(&efc->pend_frames_lock, flags);
if (domain) {
/* immediately process pending frames */
efct_domain_process_pending(domain);
}
} else {
/*
* We are not holding frames and pending list is empty,
* just process frame. A non-zero return means the frame
* was not handled - so cleanup
*/
if (efc_domain_dispatch_frame(domain, seq))
efc->tt.hw_seq_free(efc, seq);
}
}
int
efc_domain_dispatch_frame(void *arg, struct efc_hw_sequence *seq)
{
struct efc_domain *domain = (struct efc_domain *)arg;
struct efc *efc = domain->efc;
struct fc_frame_header *hdr;
struct efc_node *node = NULL;
struct efc_nport *nport = NULL;
unsigned long flags = 0;
u32 s_id, d_id, rc = EFC_HW_SEQ_FREE;
if (!seq->header || !seq->header->dma.virt || !seq->payload->dma.virt) {
efc_log_err(efc, "Sequence header or payload is null\n");
return rc;
}
hdr = seq->header->dma.virt;
/* extract the s_id and d_id */
s_id = ntoh24(hdr->fh_s_id);
d_id = ntoh24(hdr->fh_d_id);
spin_lock_irqsave(&efc->lock, flags);
nport = efc_nport_find(domain, d_id);
if (!nport) {
if (hdr->fh_type == FC_TYPE_FCP) {
/* Drop frame */
efc_log_warn(efc, "FCP frame with invalid d_id x%x\n",
d_id);
goto out;
}
/* p2p will use this case */
nport = domain->nport;
if (!nport || !kref_get_unless_zero(&nport->ref)) {
efc_log_err(efc, "Physical nport is NULL\n");
goto out;
}
}
/* Lookup the node given the remote s_id */
node = efc_node_find(nport, s_id);
/* If not found, then create a new node */
if (!node) {
/*
* If this is solicited data or control based on R_CTL and
* there is no node context, then we can drop the frame
*/
if ((hdr->fh_r_ctl == FC_RCTL_DD_SOL_DATA) ||
(hdr->fh_r_ctl == FC_RCTL_DD_SOL_CTL)) {
efc_log_debug(efc, "sol data/ctrl frame without node\n");
goto out_release;
}
node = efc_node_alloc(nport, s_id, false, false);
if (!node) {
efc_log_err(efc, "efc_node_alloc() failed\n");
goto out_release;
}
/* don't send PLOGI on efc_d_init entry */
efc_node_init_device(node, false);
}
if (node->hold_frames || !list_empty(&node->pend_frames)) {
/* add frame to node's pending list */
spin_lock(&node->pend_frames_lock);
INIT_LIST_HEAD(&seq->list_entry);
list_add_tail(&seq->list_entry, &node->pend_frames);
spin_unlock(&node->pend_frames_lock);
rc = EFC_HW_SEQ_HOLD;
goto out_release;
}
/* now dispatch frame to the node frame handler */
efc_node_dispatch_frame(node, seq);
out_release:
kref_put(&nport->ref, nport->release);
out:
spin_unlock_irqrestore(&efc->lock, flags);
return rc;
}
void
efc_node_dispatch_frame(void *arg, struct efc_hw_sequence *seq)
{
struct fc_frame_header *hdr = seq->header->dma.virt;
u32 port_id;
struct efc_node *node = (struct efc_node *)arg;
struct efc *efc = node->efc;
port_id = ntoh24(hdr->fh_s_id);
if (WARN_ON(port_id != node->rnode.fc_id))
return;
if ((!(ntoh24(hdr->fh_f_ctl) & FC_FC_END_SEQ)) ||
!(ntoh24(hdr->fh_f_ctl) & FC_FC_SEQ_INIT)) {
node_printf(node,
"Drop frame hdr = %08x %08x %08x %08x %08x %08x\n",
cpu_to_be32(((u32 *)hdr)[0]),
cpu_to_be32(((u32 *)hdr)[1]),
cpu_to_be32(((u32 *)hdr)[2]),
cpu_to_be32(((u32 *)hdr)[3]),
cpu_to_be32(((u32 *)hdr)[4]),
cpu_to_be32(((u32 *)hdr)[5]));
return;
}
switch (hdr->fh_r_ctl) {
case FC_RCTL_ELS_REQ:
case FC_RCTL_ELS_REP:
efc_node_recv_els_frame(node, seq);
break;
case FC_RCTL_BA_ABTS:
case FC_RCTL_BA_ACC:
case FC_RCTL_BA_RJT:
case FC_RCTL_BA_NOP:
efc_log_err(efc, "Received ABTS:\n");
break;
case FC_RCTL_DD_UNSOL_CMD:
case FC_RCTL_DD_UNSOL_CTL:
switch (hdr->fh_type) {
case FC_TYPE_FCP:
if ((hdr->fh_r_ctl & 0xf) == FC_RCTL_DD_UNSOL_CMD) {
if (!node->fcp_enabled) {
efc_node_recv_fcp_cmd(node, seq);
break;
}
efc_log_err(efc, "Recvd FCP CMD. Drop IO\n");
} else if ((hdr->fh_r_ctl & 0xf) ==
FC_RCTL_DD_SOL_DATA) {
node_printf(node,
"solicited data recvd. Drop IO\n");
}
break;
case FC_TYPE_CT:
efc_node_recv_ct_frame(node, seq);
break;
default:
break;
}
break;
default:
efc_log_err(efc, "Unhandled frame rctl: %02x\n", hdr->fh_r_ctl);
}
}
|
linux-master
|
drivers/scsi/elx/libefc/efc_domain.c
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
#include "efclib.h"
#include "../libefc_sli/sli4.h"
#include "efc_cmds.h"
#include "efc_sm.h"
static void
efc_nport_free_resources(struct efc_nport *nport, int evt, void *data)
{
struct efc *efc = nport->efc;
/* Clear the nport attached flag */
nport->attached = false;
/* Free the service parameters buffer */
if (nport->dma.virt) {
dma_free_coherent(&efc->pci->dev, nport->dma.size,
nport->dma.virt, nport->dma.phys);
memset(&nport->dma, 0, sizeof(struct efc_dma));
}
/* Free the SLI resources */
sli_resource_free(efc->sli, SLI4_RSRC_VPI, nport->indicator);
efc_nport_cb(efc, evt, nport);
}
static int
efc_nport_get_mbox_status(struct efc_nport *nport, u8 *mqe, int status)
{
struct efc *efc = nport->efc;
struct sli4_mbox_command_header *hdr =
(struct sli4_mbox_command_header *)mqe;
if (status || le16_to_cpu(hdr->status)) {
efc_log_debug(efc, "bad status vpi=%#x st=%x hdr=%x\n",
nport->indicator, status, le16_to_cpu(hdr->status));
return -EIO;
}
return 0;
}
static int
efc_nport_free_unreg_vpi_cb(struct efc *efc, int status, u8 *mqe, void *arg)
{
struct efc_nport *nport = arg;
int evt = EFC_EVT_NPORT_FREE_OK;
int rc;
rc = efc_nport_get_mbox_status(nport, mqe, status);
if (rc)
evt = EFC_EVT_NPORT_FREE_FAIL;
efc_nport_free_resources(nport, evt, mqe);
return rc;
}
static void
efc_nport_free_unreg_vpi(struct efc_nport *nport)
{
struct efc *efc = nport->efc;
int rc;
u8 data[SLI4_BMBX_SIZE];
rc = sli_cmd_unreg_vpi(efc->sli, data, nport->indicator,
SLI4_UNREG_TYPE_PORT);
if (rc) {
efc_log_err(efc, "UNREG_VPI format failure\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_FREE_FAIL, data);
return;
}
rc = efc->tt.issue_mbox_rqst(efc->base, data,
efc_nport_free_unreg_vpi_cb, nport);
if (rc) {
efc_log_err(efc, "UNREG_VPI command failure\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_FREE_FAIL, data);
}
}
static void
efc_nport_send_evt(struct efc_nport *nport, int evt, void *data)
{
struct efc *efc = nport->efc;
/* Now inform the registered callbacks */
efc_nport_cb(efc, evt, nport);
/* Set the nport attached flag */
if (evt == EFC_EVT_NPORT_ATTACH_OK)
nport->attached = true;
/* If there is a pending free request, then handle it now */
if (nport->free_req_pending)
efc_nport_free_unreg_vpi(nport);
}
static int
efc_nport_alloc_init_vpi_cb(struct efc *efc, int status, u8 *mqe, void *arg)
{
struct efc_nport *nport = arg;
if (efc_nport_get_mbox_status(nport, mqe, status)) {
efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, mqe);
return -EIO;
}
efc_nport_send_evt(nport, EFC_EVT_NPORT_ALLOC_OK, mqe);
return 0;
}
static void
efc_nport_alloc_init_vpi(struct efc_nport *nport)
{
struct efc *efc = nport->efc;
u8 data[SLI4_BMBX_SIZE];
int rc;
/* If there is a pending free request, then handle it now */
if (nport->free_req_pending) {
efc_nport_free_resources(nport, EFC_EVT_NPORT_FREE_OK, data);
return;
}
rc = sli_cmd_init_vpi(efc->sli, data,
nport->indicator, nport->domain->indicator);
if (rc) {
efc_log_err(efc, "INIT_VPI format failure\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
return;
}
rc = efc->tt.issue_mbox_rqst(efc->base, data,
efc_nport_alloc_init_vpi_cb, nport);
if (rc) {
efc_log_err(efc, "INIT_VPI command failure\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
}
}
static int
efc_nport_alloc_read_sparm64_cb(struct efc *efc, int status, u8 *mqe, void *arg)
{
struct efc_nport *nport = arg;
u8 *payload = NULL;
if (efc_nport_get_mbox_status(nport, mqe, status)) {
efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, mqe);
return -EIO;
}
payload = nport->dma.virt;
memcpy(&nport->sli_wwpn, payload + SLI4_READ_SPARM64_WWPN_OFFSET,
sizeof(nport->sli_wwpn));
memcpy(&nport->sli_wwnn, payload + SLI4_READ_SPARM64_WWNN_OFFSET,
sizeof(nport->sli_wwnn));
dma_free_coherent(&efc->pci->dev, nport->dma.size, nport->dma.virt,
nport->dma.phys);
memset(&nport->dma, 0, sizeof(struct efc_dma));
efc_nport_alloc_init_vpi(nport);
return 0;
}
static void
efc_nport_alloc_read_sparm64(struct efc *efc, struct efc_nport *nport)
{
u8 data[SLI4_BMBX_SIZE];
int rc;
/* Allocate memory for the service parameters */
nport->dma.size = EFC_SPARAM_DMA_SZ;
nport->dma.virt = dma_alloc_coherent(&efc->pci->dev,
nport->dma.size, &nport->dma.phys,
GFP_KERNEL);
if (!nport->dma.virt) {
efc_log_err(efc, "Failed to allocate DMA memory\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
return;
}
rc = sli_cmd_read_sparm64(efc->sli, data,
&nport->dma, nport->indicator);
if (rc) {
efc_log_err(efc, "READ_SPARM64 format failure\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
return;
}
rc = efc->tt.issue_mbox_rqst(efc->base, data,
efc_nport_alloc_read_sparm64_cb, nport);
if (rc) {
efc_log_err(efc, "READ_SPARM64 command failure\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_ALLOC_FAIL, data);
}
}
int
efc_cmd_nport_alloc(struct efc *efc, struct efc_nport *nport,
struct efc_domain *domain, u8 *wwpn)
{
u32 index;
nport->indicator = U32_MAX;
nport->free_req_pending = false;
if (wwpn)
memcpy(&nport->sli_wwpn, wwpn, sizeof(nport->sli_wwpn));
/*
* allocate a VPI object for the port and stores it in the
* indicator field of the port object.
*/
if (sli_resource_alloc(efc->sli, SLI4_RSRC_VPI,
&nport->indicator, &index)) {
efc_log_err(efc, "VPI allocation failure\n");
return -EIO;
}
if (domain) {
/*
* If the WWPN is NULL, fetch the default
* WWPN and WWNN before initializing the VPI
*/
if (!wwpn)
efc_nport_alloc_read_sparm64(efc, nport);
else
efc_nport_alloc_init_vpi(nport);
} else if (!wwpn) {
/* domain NULL and wwpn non-NULL */
efc_log_err(efc, "need WWN for physical port\n");
sli_resource_free(efc->sli, SLI4_RSRC_VPI, nport->indicator);
return -EIO;
}
return 0;
}
static int
efc_nport_attach_reg_vpi_cb(struct efc *efc, int status, u8 *mqe,
void *arg)
{
struct efc_nport *nport = arg;
nport->attaching = false;
if (efc_nport_get_mbox_status(nport, mqe, status)) {
efc_nport_free_resources(nport, EFC_EVT_NPORT_ATTACH_FAIL, mqe);
return -EIO;
}
efc_nport_send_evt(nport, EFC_EVT_NPORT_ATTACH_OK, mqe);
return 0;
}
int
efc_cmd_nport_attach(struct efc *efc, struct efc_nport *nport, u32 fc_id)
{
u8 buf[SLI4_BMBX_SIZE];
int rc = 0;
if (!nport) {
efc_log_err(efc, "bad param(s) nport=%p\n", nport);
return -EIO;
}
nport->fc_id = fc_id;
/* register previously-allocated VPI with the device */
rc = sli_cmd_reg_vpi(efc->sli, buf, nport->fc_id,
nport->sli_wwpn, nport->indicator,
nport->domain->indicator, false);
if (rc) {
efc_log_err(efc, "REG_VPI format failure\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_ATTACH_FAIL, buf);
return rc;
}
rc = efc->tt.issue_mbox_rqst(efc->base, buf,
efc_nport_attach_reg_vpi_cb, nport);
if (rc) {
efc_log_err(efc, "REG_VPI command failure\n");
efc_nport_free_resources(nport, EFC_EVT_NPORT_ATTACH_FAIL, buf);
} else {
nport->attaching = true;
}
return rc;
}
int
efc_cmd_nport_free(struct efc *efc, struct efc_nport *nport)
{
if (!nport) {
efc_log_err(efc, "bad parameter(s) nport=%p\n", nport);
return -EIO;
}
/* Issue the UNREG_VPI command to free the assigned VPI context */
if (nport->attached)
efc_nport_free_unreg_vpi(nport);
else if (nport->attaching)
nport->free_req_pending = true;
else
efc_sm_post_event(&nport->sm, EFC_EVT_NPORT_FREE_OK, NULL);
return 0;
}
static int
efc_domain_get_mbox_status(struct efc_domain *domain, u8 *mqe, int status)
{
struct efc *efc = domain->efc;
struct sli4_mbox_command_header *hdr =
(struct sli4_mbox_command_header *)mqe;
if (status || le16_to_cpu(hdr->status)) {
efc_log_debug(efc, "bad status vfi=%#x st=%x hdr=%x\n",
domain->indicator, status,
le16_to_cpu(hdr->status));
return -EIO;
}
return 0;
}
static void
efc_domain_free_resources(struct efc_domain *domain, int evt, void *data)
{
struct efc *efc = domain->efc;
/* Free the service parameters buffer */
if (domain->dma.virt) {
dma_free_coherent(&efc->pci->dev,
domain->dma.size, domain->dma.virt,
domain->dma.phys);
memset(&domain->dma, 0, sizeof(struct efc_dma));
}
/* Free the SLI resources */
sli_resource_free(efc->sli, SLI4_RSRC_VFI, domain->indicator);
efc_domain_cb(efc, evt, domain);
}
static void
efc_domain_send_nport_evt(struct efc_domain *domain,
int port_evt, int domain_evt, void *data)
{
struct efc *efc = domain->efc;
/* Send alloc/attach ok to the physical nport */
efc_nport_send_evt(domain->nport, port_evt, NULL);
/* Now inform the registered callbacks */
efc_domain_cb(efc, domain_evt, domain);
}
static int
efc_domain_alloc_read_sparm64_cb(struct efc *efc, int status, u8 *mqe,
void *arg)
{
struct efc_domain *domain = arg;
if (efc_domain_get_mbox_status(domain, mqe, status)) {
efc_domain_free_resources(domain,
EFC_HW_DOMAIN_ALLOC_FAIL, mqe);
return -EIO;
}
efc_domain_send_nport_evt(domain, EFC_EVT_NPORT_ALLOC_OK,
EFC_HW_DOMAIN_ALLOC_OK, mqe);
return 0;
}
static void
efc_domain_alloc_read_sparm64(struct efc_domain *domain)
{
struct efc *efc = domain->efc;
u8 data[SLI4_BMBX_SIZE];
int rc;
rc = sli_cmd_read_sparm64(efc->sli, data, &domain->dma, 0);
if (rc) {
efc_log_err(efc, "READ_SPARM64 format failure\n");
efc_domain_free_resources(domain,
EFC_HW_DOMAIN_ALLOC_FAIL, data);
return;
}
rc = efc->tt.issue_mbox_rqst(efc->base, data,
efc_domain_alloc_read_sparm64_cb, domain);
if (rc) {
efc_log_err(efc, "READ_SPARM64 command failure\n");
efc_domain_free_resources(domain,
EFC_HW_DOMAIN_ALLOC_FAIL, data);
}
}
static int
efc_domain_alloc_init_vfi_cb(struct efc *efc, int status, u8 *mqe,
void *arg)
{
struct efc_domain *domain = arg;
if (efc_domain_get_mbox_status(domain, mqe, status)) {
efc_domain_free_resources(domain,
EFC_HW_DOMAIN_ALLOC_FAIL, mqe);
return -EIO;
}
efc_domain_alloc_read_sparm64(domain);
return 0;
}
static void
efc_domain_alloc_init_vfi(struct efc_domain *domain)
{
struct efc *efc = domain->efc;
struct efc_nport *nport = domain->nport;
u8 data[SLI4_BMBX_SIZE];
int rc;
/*
* For FC, the HW alread registered an FCFI.
* Copy FCF information into the domain and jump to INIT_VFI.
*/
domain->fcf_indicator = efc->fcfi;
rc = sli_cmd_init_vfi(efc->sli, data, domain->indicator,
domain->fcf_indicator, nport->indicator);
if (rc) {
efc_log_err(efc, "INIT_VFI format failure\n");
efc_domain_free_resources(domain,
EFC_HW_DOMAIN_ALLOC_FAIL, data);
return;
}
efc_log_err(efc, "%s issue mbox\n", __func__);
rc = efc->tt.issue_mbox_rqst(efc->base, data,
efc_domain_alloc_init_vfi_cb, domain);
if (rc) {
efc_log_err(efc, "INIT_VFI command failure\n");
efc_domain_free_resources(domain,
EFC_HW_DOMAIN_ALLOC_FAIL, data);
}
}
int
efc_cmd_domain_alloc(struct efc *efc, struct efc_domain *domain, u32 fcf)
{
u32 index;
if (!domain || !domain->nport) {
efc_log_err(efc, "bad parameter(s) domain=%p nport=%p\n",
domain, domain ? domain->nport : NULL);
return -EIO;
}
/* allocate memory for the service parameters */
domain->dma.size = EFC_SPARAM_DMA_SZ;
domain->dma.virt = dma_alloc_coherent(&efc->pci->dev,
domain->dma.size,
&domain->dma.phys, GFP_KERNEL);
if (!domain->dma.virt) {
efc_log_err(efc, "Failed to allocate DMA memory\n");
return -EIO;
}
domain->fcf = fcf;
domain->fcf_indicator = U32_MAX;
domain->indicator = U32_MAX;
if (sli_resource_alloc(efc->sli, SLI4_RSRC_VFI, &domain->indicator,
&index)) {
efc_log_err(efc, "VFI allocation failure\n");
dma_free_coherent(&efc->pci->dev,
domain->dma.size, domain->dma.virt,
domain->dma.phys);
memset(&domain->dma, 0, sizeof(struct efc_dma));
return -EIO;
}
efc_domain_alloc_init_vfi(domain);
return 0;
}
static int
efc_domain_attach_reg_vfi_cb(struct efc *efc, int status, u8 *mqe,
void *arg)
{
struct efc_domain *domain = arg;
if (efc_domain_get_mbox_status(domain, mqe, status)) {
efc_domain_free_resources(domain,
EFC_HW_DOMAIN_ATTACH_FAIL, mqe);
return -EIO;
}
efc_domain_send_nport_evt(domain, EFC_EVT_NPORT_ATTACH_OK,
EFC_HW_DOMAIN_ATTACH_OK, mqe);
return 0;
}
int
efc_cmd_domain_attach(struct efc *efc, struct efc_domain *domain, u32 fc_id)
{
u8 buf[SLI4_BMBX_SIZE];
int rc = 0;
if (!domain) {
efc_log_err(efc, "bad param(s) domain=%p\n", domain);
return -EIO;
}
domain->nport->fc_id = fc_id;
rc = sli_cmd_reg_vfi(efc->sli, buf, SLI4_BMBX_SIZE, domain->indicator,
domain->fcf_indicator, domain->dma,
domain->nport->indicator, domain->nport->sli_wwpn,
domain->nport->fc_id);
if (rc) {
efc_log_err(efc, "REG_VFI format failure\n");
goto cleanup;
}
rc = efc->tt.issue_mbox_rqst(efc->base, buf,
efc_domain_attach_reg_vfi_cb, domain);
if (rc) {
efc_log_err(efc, "REG_VFI command failure\n");
goto cleanup;
}
return rc;
cleanup:
efc_domain_free_resources(domain, EFC_HW_DOMAIN_ATTACH_FAIL, buf);
return rc;
}
static int
efc_domain_free_unreg_vfi_cb(struct efc *efc, int status, u8 *mqe, void *arg)
{
struct efc_domain *domain = arg;
int evt = EFC_HW_DOMAIN_FREE_OK;
int rc;
rc = efc_domain_get_mbox_status(domain, mqe, status);
if (rc) {
evt = EFC_HW_DOMAIN_FREE_FAIL;
rc = -EIO;
}
efc_domain_free_resources(domain, evt, mqe);
return rc;
}
static void
efc_domain_free_unreg_vfi(struct efc_domain *domain)
{
struct efc *efc = domain->efc;
int rc;
u8 data[SLI4_BMBX_SIZE];
rc = sli_cmd_unreg_vfi(efc->sli, data, domain->indicator,
SLI4_UNREG_TYPE_DOMAIN);
if (rc) {
efc_log_err(efc, "UNREG_VFI format failure\n");
goto cleanup;
}
rc = efc->tt.issue_mbox_rqst(efc->base, data,
efc_domain_free_unreg_vfi_cb, domain);
if (rc) {
efc_log_err(efc, "UNREG_VFI command failure\n");
goto cleanup;
}
return;
cleanup:
efc_domain_free_resources(domain, EFC_HW_DOMAIN_FREE_FAIL, data);
}
int
efc_cmd_domain_free(struct efc *efc, struct efc_domain *domain)
{
if (!domain) {
efc_log_err(efc, "bad parameter(s) domain=%p\n", domain);
return -EIO;
}
efc_domain_free_unreg_vfi(domain);
return 0;
}
int
efc_cmd_node_alloc(struct efc *efc, struct efc_remote_node *rnode, u32 fc_addr,
struct efc_nport *nport)
{
/* Check for invalid indicator */
if (rnode->indicator != U32_MAX) {
efc_log_err(efc,
"RPI allocation failure addr=%#x rpi=%#x\n",
fc_addr, rnode->indicator);
return -EIO;
}
/* NULL SLI port indicates an unallocated remote node */
rnode->nport = NULL;
if (sli_resource_alloc(efc->sli, SLI4_RSRC_RPI,
&rnode->indicator, &rnode->index)) {
efc_log_err(efc, "RPI allocation failure addr=%#x\n",
fc_addr);
return -EIO;
}
rnode->fc_id = fc_addr;
rnode->nport = nport;
return 0;
}
static int
efc_cmd_node_attach_cb(struct efc *efc, int status, u8 *mqe, void *arg)
{
struct efc_remote_node *rnode = arg;
struct sli4_mbox_command_header *hdr =
(struct sli4_mbox_command_header *)mqe;
int evt = 0;
if (status || le16_to_cpu(hdr->status)) {
efc_log_debug(efc, "bad status cqe=%#x mqe=%#x\n", status,
le16_to_cpu(hdr->status));
rnode->attached = false;
evt = EFC_EVT_NODE_ATTACH_FAIL;
} else {
rnode->attached = true;
evt = EFC_EVT_NODE_ATTACH_OK;
}
efc_remote_node_cb(efc, evt, rnode);
return 0;
}
int
efc_cmd_node_attach(struct efc *efc, struct efc_remote_node *rnode,
struct efc_dma *sparms)
{
int rc = -EIO;
u8 buf[SLI4_BMBX_SIZE];
if (!rnode || !sparms) {
efc_log_err(efc, "bad parameter(s) rnode=%p sparms=%p\n",
rnode, sparms);
return -EIO;
}
/*
* If the attach count is non-zero, this RPI has already been reg'd.
* Otherwise, register the RPI
*/
if (rnode->index == U32_MAX) {
efc_log_err(efc, "bad parameter rnode->index invalid\n");
return -EIO;
}
/* Update a remote node object with the remote port's service params */
if (!sli_cmd_reg_rpi(efc->sli, buf, rnode->indicator,
rnode->nport->indicator, rnode->fc_id, sparms, 0, 0))
rc = efc->tt.issue_mbox_rqst(efc->base, buf,
efc_cmd_node_attach_cb, rnode);
return rc;
}
int
efc_node_free_resources(struct efc *efc, struct efc_remote_node *rnode)
{
int rc = 0;
if (!rnode) {
efc_log_err(efc, "bad parameter rnode=%p\n", rnode);
return -EIO;
}
if (rnode->nport) {
if (rnode->attached) {
efc_log_err(efc, "rnode is still attached\n");
return -EIO;
}
if (rnode->indicator != U32_MAX) {
if (sli_resource_free(efc->sli, SLI4_RSRC_RPI,
rnode->indicator)) {
efc_log_err(efc,
"RPI free fail RPI %d addr=%#x\n",
rnode->indicator, rnode->fc_id);
rc = -EIO;
} else {
rnode->indicator = U32_MAX;
rnode->index = U32_MAX;
}
}
}
return rc;
}
static int
efc_cmd_node_free_cb(struct efc *efc, int status, u8 *mqe, void *arg)
{
struct efc_remote_node *rnode = arg;
struct sli4_mbox_command_header *hdr =
(struct sli4_mbox_command_header *)mqe;
int evt = EFC_EVT_NODE_FREE_FAIL;
int rc = 0;
if (status || le16_to_cpu(hdr->status)) {
efc_log_debug(efc, "bad status cqe=%#x mqe=%#x\n", status,
le16_to_cpu(hdr->status));
/*
* In certain cases, a non-zero MQE status is OK (all must be
* true):
* - node is attached
* - status is 0x1400
*/
if (!rnode->attached ||
(le16_to_cpu(hdr->status) != SLI4_MBX_STATUS_RPI_NOT_REG))
rc = -EIO;
}
if (!rc) {
rnode->attached = false;
evt = EFC_EVT_NODE_FREE_OK;
}
efc_remote_node_cb(efc, evt, rnode);
return rc;
}
int
efc_cmd_node_detach(struct efc *efc, struct efc_remote_node *rnode)
{
u8 buf[SLI4_BMBX_SIZE];
int rc = -EIO;
if (!rnode) {
efc_log_err(efc, "bad parameter rnode=%p\n", rnode);
return -EIO;
}
if (rnode->nport) {
if (!rnode->attached)
return -EIO;
rc = -EIO;
if (!sli_cmd_unreg_rpi(efc->sli, buf, rnode->indicator,
SLI4_RSRC_RPI, U32_MAX))
rc = efc->tt.issue_mbox_rqst(efc->base, buf,
efc_cmd_node_free_cb, rnode);
if (rc != 0) {
efc_log_err(efc, "UNREG_RPI failed\n");
rc = -EIO;
}
}
return rc;
}
|
linux-master
|
drivers/scsi/elx/libefc/efc_cmds.c
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
#include "efc.h"
int
efc_remote_node_cb(void *arg, int event, void *data)
{
struct efc *efc = arg;
struct efc_remote_node *rnode = data;
struct efc_node *node = rnode->node;
unsigned long flags = 0;
spin_lock_irqsave(&efc->lock, flags);
efc_node_post_event(node, event, NULL);
spin_unlock_irqrestore(&efc->lock, flags);
return 0;
}
struct efc_node *
efc_node_find(struct efc_nport *nport, u32 port_id)
{
/* Find an FC node structure given the FC port ID */
return xa_load(&nport->lookup, port_id);
}
static void
_efc_node_free(struct kref *arg)
{
struct efc_node *node = container_of(arg, struct efc_node, ref);
struct efc *efc = node->efc;
struct efc_dma *dma;
dma = &node->sparm_dma_buf;
dma_pool_free(efc->node_dma_pool, dma->virt, dma->phys);
memset(dma, 0, sizeof(struct efc_dma));
mempool_free(node, efc->node_pool);
}
struct efc_node *efc_node_alloc(struct efc_nport *nport,
u32 port_id, bool init, bool targ)
{
int rc;
struct efc_node *node = NULL;
struct efc *efc = nport->efc;
struct efc_dma *dma;
if (nport->shutting_down) {
efc_log_debug(efc, "node allocation when shutting down %06x",
port_id);
return NULL;
}
node = mempool_alloc(efc->node_pool, GFP_ATOMIC);
if (!node) {
efc_log_err(efc, "node allocation failed %06x", port_id);
return NULL;
}
memset(node, 0, sizeof(*node));
dma = &node->sparm_dma_buf;
dma->size = NODE_SPARAMS_SIZE;
dma->virt = dma_pool_zalloc(efc->node_dma_pool, GFP_ATOMIC, &dma->phys);
if (!dma->virt) {
efc_log_err(efc, "node dma alloc failed\n");
goto dma_fail;
}
node->rnode.indicator = U32_MAX;
node->nport = nport;
node->efc = efc;
node->init = init;
node->targ = targ;
spin_lock_init(&node->pend_frames_lock);
INIT_LIST_HEAD(&node->pend_frames);
spin_lock_init(&node->els_ios_lock);
INIT_LIST_HEAD(&node->els_ios_list);
node->els_io_enabled = true;
rc = efc_cmd_node_alloc(efc, &node->rnode, port_id, nport);
if (rc) {
efc_log_err(efc, "efc_hw_node_alloc failed: %d\n", rc);
goto hw_alloc_fail;
}
node->rnode.node = node;
node->sm.app = node;
node->evtdepth = 0;
efc_node_update_display_name(node);
rc = xa_err(xa_store(&nport->lookup, port_id, node, GFP_ATOMIC));
if (rc) {
efc_log_err(efc, "Node lookup store failed: %d\n", rc);
goto xa_fail;
}
/* initialize refcount */
kref_init(&node->ref);
node->release = _efc_node_free;
kref_get(&nport->ref);
return node;
xa_fail:
efc_node_free_resources(efc, &node->rnode);
hw_alloc_fail:
dma_pool_free(efc->node_dma_pool, dma->virt, dma->phys);
dma_fail:
mempool_free(node, efc->node_pool);
return NULL;
}
void
efc_node_free(struct efc_node *node)
{
struct efc_nport *nport;
struct efc *efc;
int rc = 0;
struct efc_node *ns = NULL;
nport = node->nport;
efc = node->efc;
node_printf(node, "Free'd\n");
if (node->refound) {
/*
* Save the name server node. We will send fake RSCN event at
* the end to handle ignored RSCN event during node deletion
*/
ns = efc_node_find(node->nport, FC_FID_DIR_SERV);
}
if (!node->nport) {
efc_log_err(efc, "Node already Freed\n");
return;
}
/* Free HW resources */
rc = efc_node_free_resources(efc, &node->rnode);
if (rc < 0)
efc_log_err(efc, "efc_hw_node_free failed: %d\n", rc);
/* if the gidpt_delay_timer is still running, then delete it */
if (timer_pending(&node->gidpt_delay_timer))
del_timer(&node->gidpt_delay_timer);
xa_erase(&nport->lookup, node->rnode.fc_id);
/*
* If the node_list is empty,
* then post a ALL_CHILD_NODES_FREE event to the nport,
* after the lock is released.
* The nport may be free'd as a result of the event.
*/
if (xa_empty(&nport->lookup))
efc_sm_post_event(&nport->sm, EFC_EVT_ALL_CHILD_NODES_FREE,
NULL);
node->nport = NULL;
node->sm.current_state = NULL;
kref_put(&nport->ref, nport->release);
kref_put(&node->ref, node->release);
if (ns) {
/* sending fake RSCN event to name server node */
efc_node_post_event(ns, EFC_EVT_RSCN_RCVD, NULL);
}
}
static void
efc_dma_copy_in(struct efc_dma *dma, void *buffer, u32 buffer_length)
{
if (!dma || !buffer || !buffer_length)
return;
if (buffer_length > dma->size)
buffer_length = dma->size;
memcpy(dma->virt, buffer, buffer_length);
dma->len = buffer_length;
}
int
efc_node_attach(struct efc_node *node)
{
int rc = 0;
struct efc_nport *nport = node->nport;
struct efc_domain *domain = nport->domain;
struct efc *efc = node->efc;
if (!domain->attached) {
efc_log_err(efc, "Warning: unattached domain\n");
return -EIO;
}
/* Update node->wwpn/wwnn */
efc_node_build_eui_name(node->wwpn, sizeof(node->wwpn),
efc_node_get_wwpn(node));
efc_node_build_eui_name(node->wwnn, sizeof(node->wwnn),
efc_node_get_wwnn(node));
efc_dma_copy_in(&node->sparm_dma_buf, node->service_params + 4,
sizeof(node->service_params) - 4);
/* take lock to protect node->rnode.attached */
rc = efc_cmd_node_attach(efc, &node->rnode, &node->sparm_dma_buf);
if (rc < 0)
efc_log_debug(efc, "efc_hw_node_attach failed: %d\n", rc);
return rc;
}
void
efc_node_fcid_display(u32 fc_id, char *buffer, u32 buffer_length)
{
switch (fc_id) {
case FC_FID_FLOGI:
snprintf(buffer, buffer_length, "fabric");
break;
case FC_FID_FCTRL:
snprintf(buffer, buffer_length, "fabctl");
break;
case FC_FID_DIR_SERV:
snprintf(buffer, buffer_length, "nserve");
break;
default:
if (fc_id == FC_FID_DOM_MGR) {
snprintf(buffer, buffer_length, "dctl%02x",
(fc_id & 0x0000ff));
} else {
snprintf(buffer, buffer_length, "%06x", fc_id);
}
break;
}
}
void
efc_node_update_display_name(struct efc_node *node)
{
u32 port_id = node->rnode.fc_id;
struct efc_nport *nport = node->nport;
char portid_display[16];
efc_node_fcid_display(port_id, portid_display, sizeof(portid_display));
snprintf(node->display_name, sizeof(node->display_name), "%s.%s",
nport->display_name, portid_display);
}
void
efc_node_send_ls_io_cleanup(struct efc_node *node)
{
if (node->send_ls_acc != EFC_NODE_SEND_LS_ACC_NONE) {
efc_log_debug(node->efc, "[%s] cleaning up LS_ACC oxid=0x%x\n",
node->display_name, node->ls_acc_oxid);
node->send_ls_acc = EFC_NODE_SEND_LS_ACC_NONE;
node->ls_acc_io = NULL;
}
}
static void efc_node_handle_implicit_logo(struct efc_node *node)
{
int rc;
/*
* currently, only case for implicit logo is PLOGI
* recvd. Thus, node's ELS IO pending list won't be
* empty (PLOGI will be on it)
*/
WARN_ON(node->send_ls_acc != EFC_NODE_SEND_LS_ACC_PLOGI);
node_printf(node, "Reason: implicit logout, re-authenticate\n");
/* Re-attach node with the same HW node resources */
node->req_free = false;
rc = efc_node_attach(node);
efc_node_transition(node, __efc_d_wait_node_attach, NULL);
node->els_io_enabled = true;
if (rc < 0)
efc_node_post_event(node, EFC_EVT_NODE_ATTACH_FAIL, NULL);
}
static void efc_node_handle_explicit_logo(struct efc_node *node)
{
s8 pend_frames_empty;
unsigned long flags = 0;
/* cleanup any pending LS_ACC ELSs */
efc_node_send_ls_io_cleanup(node);
spin_lock_irqsave(&node->pend_frames_lock, flags);
pend_frames_empty = list_empty(&node->pend_frames);
spin_unlock_irqrestore(&node->pend_frames_lock, flags);
/*
* there are two scenarios where we want to keep
* this node alive:
* 1. there are pending frames that need to be
* processed or
* 2. we're an initiator and the remote node is
* a target and we need to re-authenticate
*/
node_printf(node, "Shutdown: explicit logo pend=%d ", !pend_frames_empty);
node_printf(node, "nport.ini=%d node.tgt=%d\n",
node->nport->enable_ini, node->targ);
if (!pend_frames_empty || (node->nport->enable_ini && node->targ)) {
u8 send_plogi = false;
if (node->nport->enable_ini && node->targ) {
/*
* we're an initiator and
* node shutting down is a target;
* we'll need to re-authenticate in
* initial state
*/
send_plogi = true;
}
/*
* transition to __efc_d_init
* (will retain HW node resources)
*/
node->els_io_enabled = true;
node->req_free = false;
/*
* either pending frames exist or we are re-authenticating
* with PLOGI (or both); in either case, return to initial
* state
*/
efc_node_init_device(node, send_plogi);
}
/* else: let node shutdown occur */
}
static void
efc_node_purge_pending(struct efc_node *node)
{
struct efc *efc = node->efc;
struct efc_hw_sequence *frame, *next;
unsigned long flags = 0;
spin_lock_irqsave(&node->pend_frames_lock, flags);
list_for_each_entry_safe(frame, next, &node->pend_frames, list_entry) {
list_del(&frame->list_entry);
efc->tt.hw_seq_free(efc, frame);
}
spin_unlock_irqrestore(&node->pend_frames_lock, flags);
}
void
__efc_node_shutdown(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER: {
efc_node_hold_frames(node);
WARN_ON(!efc_els_io_list_empty(node, &node->els_ios_list));
/* by default, we will be freeing node after we unwind */
node->req_free = true;
switch (node->shutdown_reason) {
case EFC_NODE_SHUTDOWN_IMPLICIT_LOGO:
/* Node shutdown b/c of PLOGI received when node
* already logged in. We have PLOGI service
* parameters, so submit node attach; we won't be
* freeing this node
*/
efc_node_handle_implicit_logo(node);
break;
case EFC_NODE_SHUTDOWN_EXPLICIT_LOGO:
efc_node_handle_explicit_logo(node);
break;
case EFC_NODE_SHUTDOWN_DEFAULT:
default: {
/*
* shutdown due to link down,
* node going away (xport event) or
* nport shutdown, purge pending and
* proceed to cleanup node
*/
/* cleanup any pending LS_ACC ELSs */
efc_node_send_ls_io_cleanup(node);
node_printf(node,
"Shutdown reason: default, purge pending\n");
efc_node_purge_pending(node);
break;
}
}
break;
}
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
default:
__efc_node_common(__func__, ctx, evt, arg);
}
}
static bool
efc_node_check_els_quiesced(struct efc_node *node)
{
/* check to see if ELS requests, completions are quiesced */
if (node->els_req_cnt == 0 && node->els_cmpl_cnt == 0 &&
efc_els_io_list_empty(node, &node->els_ios_list)) {
if (!node->attached) {
/* hw node detach already completed, proceed */
node_printf(node, "HW node not attached\n");
efc_node_transition(node,
__efc_node_wait_ios_shutdown,
NULL);
} else {
/*
* hw node detach hasn't completed,
* transition and wait
*/
node_printf(node, "HW node still attached\n");
efc_node_transition(node, __efc_node_wait_node_free,
NULL);
}
return true;
}
return false;
}
void
efc_node_initiate_cleanup(struct efc_node *node)
{
/*
* if ELS's have already been quiesced, will move to next state
* if ELS's have not been quiesced, abort them
*/
if (!efc_node_check_els_quiesced(node)) {
efc_node_hold_frames(node);
efc_node_transition(node, __efc_node_wait_els_shutdown, NULL);
}
}
void
__efc_node_wait_els_shutdown(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
bool check_quiesce = false;
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
/* Node state machine: Wait for all ELSs to complete */
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
if (efc_els_io_list_empty(node, &node->els_ios_list)) {
node_printf(node, "All ELS IOs complete\n");
check_quiesce = true;
}
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_REQ_OK:
case EFC_EVT_SRRS_ELS_REQ_FAIL:
case EFC_EVT_SRRS_ELS_REQ_RJT:
case EFC_EVT_ELS_REQ_ABORTED:
if (WARN_ON(!node->els_req_cnt))
break;
node->els_req_cnt--;
check_quiesce = true;
break;
case EFC_EVT_SRRS_ELS_CMPL_OK:
case EFC_EVT_SRRS_ELS_CMPL_FAIL:
if (WARN_ON(!node->els_cmpl_cnt))
break;
node->els_cmpl_cnt--;
check_quiesce = true;
break;
case EFC_EVT_ALL_CHILD_NODES_FREE:
/* all ELS IO's complete */
node_printf(node, "All ELS IOs complete\n");
WARN_ON(!efc_els_io_list_empty(node, &node->els_ios_list));
check_quiesce = true;
break;
case EFC_EVT_NODE_ACTIVE_IO_LIST_EMPTY:
check_quiesce = true;
break;
case EFC_EVT_DOMAIN_ATTACH_OK:
/* don't care about domain_attach_ok */
break;
/* ignore shutdown events as we're already in shutdown path */
case EFC_EVT_SHUTDOWN:
/* have default shutdown event take precedence */
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
fallthrough;
case EFC_EVT_SHUTDOWN_EXPLICIT_LOGO:
case EFC_EVT_SHUTDOWN_IMPLICIT_LOGO:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
break;
default:
__efc_node_common(__func__, ctx, evt, arg);
}
if (check_quiesce)
efc_node_check_els_quiesced(node);
}
void
__efc_node_wait_node_free(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_NODE_FREE_OK:
/* node is officially no longer attached */
node->attached = false;
efc_node_transition(node, __efc_node_wait_ios_shutdown, NULL);
break;
case EFC_EVT_ALL_CHILD_NODES_FREE:
case EFC_EVT_NODE_ACTIVE_IO_LIST_EMPTY:
/* As IOs and ELS IO's complete we expect to get these events */
break;
case EFC_EVT_DOMAIN_ATTACH_OK:
/* don't care about domain_attach_ok */
break;
/* ignore shutdown events as we're already in shutdown path */
case EFC_EVT_SHUTDOWN:
/* have default shutdown event take precedence */
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
fallthrough;
case EFC_EVT_SHUTDOWN_EXPLICIT_LOGO:
case EFC_EVT_SHUTDOWN_IMPLICIT_LOGO:
node_printf(node, "%s received\n", efc_sm_event_name(evt));
break;
default:
__efc_node_common(__func__, ctx, evt, arg);
}
}
void
__efc_node_wait_ios_shutdown(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
struct efc *efc = node->efc;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
switch (evt) {
case EFC_EVT_ENTER:
efc_node_hold_frames(node);
/* first check to see if no ELS IOs are outstanding */
if (efc_els_io_list_empty(node, &node->els_ios_list))
/* If there are any active IOS, Free them. */
efc_node_transition(node, __efc_node_shutdown, NULL);
break;
case EFC_EVT_NODE_ACTIVE_IO_LIST_EMPTY:
case EFC_EVT_ALL_CHILD_NODES_FREE:
if (efc_els_io_list_empty(node, &node->els_ios_list))
efc_node_transition(node, __efc_node_shutdown, NULL);
break;
case EFC_EVT_EXIT:
efc_node_accept_frames(node);
break;
case EFC_EVT_SRRS_ELS_REQ_FAIL:
/* Can happen as ELS IO IO's complete */
if (WARN_ON(!node->els_req_cnt))
break;
node->els_req_cnt--;
break;
/* ignore shutdown events as we're already in shutdown path */
case EFC_EVT_SHUTDOWN:
/* have default shutdown event take precedence */
node->shutdown_reason = EFC_NODE_SHUTDOWN_DEFAULT;
fallthrough;
case EFC_EVT_SHUTDOWN_EXPLICIT_LOGO:
case EFC_EVT_SHUTDOWN_IMPLICIT_LOGO:
efc_log_debug(efc, "[%s] %-20s\n", node->display_name,
efc_sm_event_name(evt));
break;
case EFC_EVT_DOMAIN_ATTACH_OK:
/* don't care about domain_attach_ok */
break;
default:
__efc_node_common(__func__, ctx, evt, arg);
}
}
void
__efc_node_common(const char *funcname, struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = NULL;
struct efc *efc = NULL;
struct efc_node_cb *cbdata = arg;
node = ctx->app;
efc = node->efc;
switch (evt) {
case EFC_EVT_ENTER:
case EFC_EVT_REENTER:
case EFC_EVT_EXIT:
case EFC_EVT_NPORT_TOPOLOGY_NOTIFY:
case EFC_EVT_NODE_MISSING:
case EFC_EVT_FCP_CMD_RCVD:
break;
case EFC_EVT_NODE_REFOUND:
node->refound = true;
break;
/*
* node->attached must be set appropriately
* for all node attach/detach events
*/
case EFC_EVT_NODE_ATTACH_OK:
node->attached = true;
break;
case EFC_EVT_NODE_FREE_OK:
case EFC_EVT_NODE_ATTACH_FAIL:
node->attached = false;
break;
/*
* handle any ELS completions that
* other states either didn't care about
* or forgot about
*/
case EFC_EVT_SRRS_ELS_CMPL_OK:
case EFC_EVT_SRRS_ELS_CMPL_FAIL:
if (WARN_ON(!node->els_cmpl_cnt))
break;
node->els_cmpl_cnt--;
break;
/*
* handle any ELS request completions that
* other states either didn't care about
* or forgot about
*/
case EFC_EVT_SRRS_ELS_REQ_OK:
case EFC_EVT_SRRS_ELS_REQ_FAIL:
case EFC_EVT_SRRS_ELS_REQ_RJT:
case EFC_EVT_ELS_REQ_ABORTED:
if (WARN_ON(!node->els_req_cnt))
break;
node->els_req_cnt--;
break;
case EFC_EVT_ELS_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
/*
* Unsupported ELS was received,
* send LS_RJT, command not supported
*/
efc_log_debug(efc,
"[%s] (%s) ELS x%02x, LS_RJT not supported\n",
node->display_name, funcname,
((u8 *)cbdata->payload->dma.virt)[0]);
efc_send_ls_rjt(node, be16_to_cpu(hdr->fh_ox_id),
ELS_RJT_UNSUP, ELS_EXPL_NONE, 0);
break;
}
case EFC_EVT_PLOGI_RCVD:
case EFC_EVT_FLOGI_RCVD:
case EFC_EVT_LOGO_RCVD:
case EFC_EVT_PRLI_RCVD:
case EFC_EVT_PRLO_RCVD:
case EFC_EVT_PDISC_RCVD:
case EFC_EVT_FDISC_RCVD:
case EFC_EVT_ADISC_RCVD:
case EFC_EVT_RSCN_RCVD:
case EFC_EVT_SCR_RCVD: {
struct fc_frame_header *hdr = cbdata->header->dma.virt;
/* sm: / send ELS_RJT */
efc_log_debug(efc, "[%s] (%s) %s sending ELS_RJT\n",
node->display_name, funcname,
efc_sm_event_name(evt));
/* if we didn't catch this in a state, send generic LS_RJT */
efc_send_ls_rjt(node, be16_to_cpu(hdr->fh_ox_id),
ELS_RJT_UNAB, ELS_EXPL_NONE, 0);
break;
}
case EFC_EVT_ABTS_RCVD: {
efc_log_debug(efc, "[%s] (%s) %s sending BA_ACC\n",
node->display_name, funcname,
efc_sm_event_name(evt));
/* sm: / send BA_ACC */
efc_send_bls_acc(node, cbdata->header->dma.virt);
break;
}
default:
efc_log_debug(node->efc, "[%s] %-20s %-20s not handled\n",
node->display_name, funcname,
efc_sm_event_name(evt));
}
}
void
efc_node_save_sparms(struct efc_node *node, void *payload)
{
memcpy(node->service_params, payload, sizeof(node->service_params));
}
void
efc_node_post_event(struct efc_node *node,
enum efc_sm_event evt, void *arg)
{
bool free_node = false;
node->evtdepth++;
efc_sm_post_event(&node->sm, evt, arg);
/* If our event call depth is one and
* we're not holding frames
* then we can dispatch any pending frames.
* We don't want to allow the efc_process_node_pending()
* call to recurse.
*/
if (!node->hold_frames && node->evtdepth == 1)
efc_process_node_pending(node);
node->evtdepth--;
/*
* Free the node object if so requested,
* and we're at an event call depth of zero
*/
if (node->evtdepth == 0 && node->req_free)
free_node = true;
if (free_node)
efc_node_free(node);
}
void
efc_node_transition(struct efc_node *node,
void (*state)(struct efc_sm_ctx *,
enum efc_sm_event, void *), void *data)
{
struct efc_sm_ctx *ctx = &node->sm;
if (ctx->current_state == state) {
efc_node_post_event(node, EFC_EVT_REENTER, data);
} else {
efc_node_post_event(node, EFC_EVT_EXIT, data);
ctx->current_state = state;
efc_node_post_event(node, EFC_EVT_ENTER, data);
}
}
void
efc_node_build_eui_name(char *buf, u32 buf_len, uint64_t eui_name)
{
memset(buf, 0, buf_len);
snprintf(buf, buf_len, "eui.%016llX", (unsigned long long)eui_name);
}
u64
efc_node_get_wwpn(struct efc_node *node)
{
struct fc_els_flogi *sp =
(struct fc_els_flogi *)node->service_params;
return be64_to_cpu(sp->fl_wwpn);
}
u64
efc_node_get_wwnn(struct efc_node *node)
{
struct fc_els_flogi *sp =
(struct fc_els_flogi *)node->service_params;
return be64_to_cpu(sp->fl_wwnn);
}
int
efc_node_check_els_req(struct efc_sm_ctx *ctx, enum efc_sm_event evt, void *arg,
u8 cmd, void (*efc_node_common_func)(const char *,
struct efc_sm_ctx *, enum efc_sm_event, void *),
const char *funcname)
{
return 0;
}
int
efc_node_check_ns_req(struct efc_sm_ctx *ctx, enum efc_sm_event evt, void *arg,
u16 cmd, void (*efc_node_common_func)(const char *,
struct efc_sm_ctx *, enum efc_sm_event, void *),
const char *funcname)
{
return 0;
}
int
efc_els_io_list_empty(struct efc_node *node, struct list_head *list)
{
int empty;
unsigned long flags = 0;
spin_lock_irqsave(&node->els_ios_lock, flags);
empty = list_empty(list);
spin_unlock_irqrestore(&node->els_ios_lock, flags);
return empty;
}
void
efc_node_pause(struct efc_node *node,
void (*state)(struct efc_sm_ctx *,
enum efc_sm_event, void *))
{
node->nodedb_state = state;
efc_node_transition(node, __efc_node_paused, NULL);
}
void
__efc_node_paused(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg)
{
struct efc_node *node = ctx->app;
efc_node_evt_set(ctx, evt, __func__);
node_sm_trace();
/*
* This state is entered when a state is "paused". When resumed, the
* node is transitioned to a previously saved state (node->ndoedb_state)
*/
switch (evt) {
case EFC_EVT_ENTER:
node_printf(node, "Paused\n");
break;
case EFC_EVT_RESUME: {
void (*pf)(struct efc_sm_ctx *ctx,
enum efc_sm_event evt, void *arg);
pf = node->nodedb_state;
node->nodedb_state = NULL;
efc_node_transition(node, pf, NULL);
break;
}
case EFC_EVT_DOMAIN_ATTACH_OK:
break;
case EFC_EVT_SHUTDOWN:
node->req_free = true;
break;
default:
__efc_node_common(__func__, ctx, evt, arg);
}
}
void
efc_node_recv_els_frame(struct efc_node *node,
struct efc_hw_sequence *seq)
{
u32 prli_size = sizeof(struct fc_els_prli) + sizeof(struct fc_els_spp);
struct {
u32 cmd;
enum efc_sm_event evt;
u32 payload_size;
} els_cmd_list[] = {
{ELS_PLOGI, EFC_EVT_PLOGI_RCVD, sizeof(struct fc_els_flogi)},
{ELS_FLOGI, EFC_EVT_FLOGI_RCVD, sizeof(struct fc_els_flogi)},
{ELS_LOGO, EFC_EVT_LOGO_RCVD, sizeof(struct fc_els_ls_acc)},
{ELS_PRLI, EFC_EVT_PRLI_RCVD, prli_size},
{ELS_PRLO, EFC_EVT_PRLO_RCVD, prli_size},
{ELS_PDISC, EFC_EVT_PDISC_RCVD, MAX_ACC_REJECT_PAYLOAD},
{ELS_FDISC, EFC_EVT_FDISC_RCVD, MAX_ACC_REJECT_PAYLOAD},
{ELS_ADISC, EFC_EVT_ADISC_RCVD, sizeof(struct fc_els_adisc)},
{ELS_RSCN, EFC_EVT_RSCN_RCVD, MAX_ACC_REJECT_PAYLOAD},
{ELS_SCR, EFC_EVT_SCR_RCVD, MAX_ACC_REJECT_PAYLOAD},
};
struct efc_node_cb cbdata;
u8 *buf = seq->payload->dma.virt;
enum efc_sm_event evt = EFC_EVT_ELS_RCVD;
u32 i;
memset(&cbdata, 0, sizeof(cbdata));
cbdata.header = seq->header;
cbdata.payload = seq->payload;
/* find a matching event for the ELS command */
for (i = 0; i < ARRAY_SIZE(els_cmd_list); i++) {
if (els_cmd_list[i].cmd == buf[0]) {
evt = els_cmd_list[i].evt;
break;
}
}
efc_node_post_event(node, evt, &cbdata);
}
void
efc_node_recv_ct_frame(struct efc_node *node,
struct efc_hw_sequence *seq)
{
struct fc_ct_hdr *iu = seq->payload->dma.virt;
struct fc_frame_header *hdr = seq->header->dma.virt;
struct efc *efc = node->efc;
u16 gscmd = be16_to_cpu(iu->ct_cmd);
efc_log_err(efc, "[%s] Received cmd :%x sending CT_REJECT\n",
node->display_name, gscmd);
efc_send_ct_rsp(efc, node, be16_to_cpu(hdr->fh_ox_id), iu,
FC_FS_RJT, FC_FS_RJT_UNSUP, 0);
}
void
efc_node_recv_fcp_cmd(struct efc_node *node, struct efc_hw_sequence *seq)
{
struct efc_node_cb cbdata;
memset(&cbdata, 0, sizeof(cbdata));
cbdata.header = seq->header;
cbdata.payload = seq->payload;
efc_node_post_event(node, EFC_EVT_FCP_CMD_RCVD, &cbdata);
}
void
efc_process_node_pending(struct efc_node *node)
{
struct efc *efc = node->efc;
struct efc_hw_sequence *seq = NULL;
u32 pend_frames_processed = 0;
unsigned long flags = 0;
for (;;) {
/* need to check for hold frames condition after each frame
* processed because any given frame could cause a transition
* to a state that holds frames
*/
if (node->hold_frames)
break;
seq = NULL;
/* Get next frame/sequence */
spin_lock_irqsave(&node->pend_frames_lock, flags);
if (!list_empty(&node->pend_frames)) {
seq = list_first_entry(&node->pend_frames,
struct efc_hw_sequence, list_entry);
list_del(&seq->list_entry);
}
spin_unlock_irqrestore(&node->pend_frames_lock, flags);
if (!seq) {
pend_frames_processed = node->pend_frames_processed;
node->pend_frames_processed = 0;
break;
}
node->pend_frames_processed++;
/* now dispatch frame(s) to dispatch function */
efc_node_dispatch_frame(node, seq);
efc->tt.hw_seq_free(efc, seq);
}
if (pend_frames_processed != 0)
efc_log_debug(efc, "%u node frames held and processed\n",
pend_frames_processed);
}
void
efc_scsi_sess_reg_complete(struct efc_node *node, u32 status)
{
unsigned long flags = 0;
enum efc_sm_event evt = EFC_EVT_NODE_SESS_REG_OK;
struct efc *efc = node->efc;
if (status)
evt = EFC_EVT_NODE_SESS_REG_FAIL;
spin_lock_irqsave(&efc->lock, flags);
/* Notify the node to resume */
efc_node_post_event(node, evt, NULL);
spin_unlock_irqrestore(&efc->lock, flags);
}
void
efc_scsi_del_initiator_complete(struct efc *efc, struct efc_node *node)
{
unsigned long flags = 0;
spin_lock_irqsave(&efc->lock, flags);
/* Notify the node to resume */
efc_node_post_event(node, EFC_EVT_NODE_DEL_INI_COMPLETE, NULL);
spin_unlock_irqrestore(&efc->lock, flags);
}
void
efc_scsi_del_target_complete(struct efc *efc, struct efc_node *node)
{
unsigned long flags = 0;
spin_lock_irqsave(&efc->lock, flags);
/* Notify the node to resume */
efc_node_post_event(node, EFC_EVT_NODE_DEL_TGT_COMPLETE, NULL);
spin_unlock_irqrestore(&efc->lock, flags);
}
void
efc_scsi_io_list_empty(struct efc *efc, struct efc_node *node)
{
unsigned long flags = 0;
spin_lock_irqsave(&efc->lock, flags);
efc_node_post_event(node, EFC_EVT_NODE_ACTIVE_IO_LIST_EMPTY, NULL);
spin_unlock_irqrestore(&efc->lock, flags);
}
void efc_node_post_els_resp(struct efc_node *node, u32 evt, void *arg)
{
struct efc *efc = node->efc;
unsigned long flags = 0;
spin_lock_irqsave(&efc->lock, flags);
efc_node_post_event(node, evt, arg);
spin_unlock_irqrestore(&efc->lock, flags);
}
void efc_node_post_shutdown(struct efc_node *node, void *arg)
{
unsigned long flags = 0;
struct efc *efc = node->efc;
spin_lock_irqsave(&efc->lock, flags);
efc_node_post_event(node, EFC_EVT_SHUTDOWN, arg);
spin_unlock_irqrestore(&efc->lock, flags);
}
|
linux-master
|
drivers/scsi/elx/libefc/efc_node.c
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Broadcom. All Rights Reserved. The term
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*/
/*
* All common (i.e. transport-independent) SLI-4 functions are implemented
* in this file.
*/
#include "sli4.h"
static struct sli4_asic_entry_t sli4_asic_table[] = {
{ SLI4_ASIC_REV_B0, SLI4_ASIC_GEN_5},
{ SLI4_ASIC_REV_D0, SLI4_ASIC_GEN_5},
{ SLI4_ASIC_REV_A3, SLI4_ASIC_GEN_6},
{ SLI4_ASIC_REV_A0, SLI4_ASIC_GEN_6},
{ SLI4_ASIC_REV_A1, SLI4_ASIC_GEN_6},
{ SLI4_ASIC_REV_A3, SLI4_ASIC_GEN_6},
{ SLI4_ASIC_REV_A1, SLI4_ASIC_GEN_7},
{ SLI4_ASIC_REV_A0, SLI4_ASIC_GEN_7},
};
/* Convert queue type enum (SLI_QTYPE_*) into a string */
static char *SLI4_QNAME[] = {
"Event Queue",
"Completion Queue",
"Mailbox Queue",
"Work Queue",
"Receive Queue",
"Undefined"
};
/**
* sli_config_cmd_init() - Write a SLI_CONFIG command to the provided buffer.
*
* @sli4: SLI context pointer.
* @buf: Destination buffer for the command.
* @length: Length in bytes of attached command.
* @dma: DMA buffer for non-embedded commands.
* Return: Command payload buffer.
*/
static void *
sli_config_cmd_init(struct sli4 *sli4, void *buf, u32 length,
struct efc_dma *dma)
{
struct sli4_cmd_sli_config *config;
u32 flags;
if (length > sizeof(config->payload.embed) && !dma) {
efc_log_err(sli4, "Too big for an embedded cmd with len(%d)\n",
length);
return NULL;
}
memset(buf, 0, SLI4_BMBX_SIZE);
config = buf;
config->hdr.command = SLI4_MBX_CMD_SLI_CONFIG;
if (!dma) {
flags = SLI4_SLICONF_EMB;
config->dw1_flags = cpu_to_le32(flags);
config->payload_len = cpu_to_le32(length);
return config->payload.embed;
}
flags = SLI4_SLICONF_PMDCMD_VAL_1;
flags &= ~SLI4_SLICONF_EMB;
config->dw1_flags = cpu_to_le32(flags);
config->payload.mem.addr.low = cpu_to_le32(lower_32_bits(dma->phys));
config->payload.mem.addr.high = cpu_to_le32(upper_32_bits(dma->phys));
config->payload.mem.length =
cpu_to_le32(dma->size & SLI4_SLICONF_PMD_LEN);
config->payload_len = cpu_to_le32(dma->size);
/* save pointer to DMA for BMBX dumping purposes */
sli4->bmbx_non_emb_pmd = dma;
return dma->virt;
}
/**
* sli_cmd_common_create_cq() - Write a COMMON_CREATE_CQ V2 command.
*
* @sli4: SLI context pointer.
* @buf: Destination buffer for the command.
* @qmem: DMA memory for queue.
* @eq_id: EQ id assosiated with this cq.
* Return: status -EIO/0.
*/
static int
sli_cmd_common_create_cq(struct sli4 *sli4, void *buf, struct efc_dma *qmem,
u16 eq_id)
{
struct sli4_rqst_cmn_create_cq_v2 *cqv2 = NULL;
u32 p;
uintptr_t addr;
u32 num_pages = 0;
size_t cmd_size = 0;
u32 page_size = 0;
u32 n_cqe = 0;
u32 dw5_flags = 0;
u16 dw6w1_arm = 0;
__le32 len;
/* First calculate number of pages and the mailbox cmd length */
n_cqe = qmem->size / SLI4_CQE_BYTES;
switch (n_cqe) {
case 256:
case 512:
case 1024:
case 2048:
page_size = SZ_4K;
break;
case 4096:
page_size = SZ_8K;
break;
default:
return -EIO;
}
num_pages = sli_page_count(qmem->size, page_size);
cmd_size = SLI4_RQST_CMDSZ(cmn_create_cq_v2)
+ SZ_DMAADDR * num_pages;
cqv2 = sli_config_cmd_init(sli4, buf, cmd_size, NULL);
if (!cqv2)
return -EIO;
len = SLI4_RQST_PYLD_LEN_VAR(cmn_create_cq_v2, SZ_DMAADDR * num_pages);
sli_cmd_fill_hdr(&cqv2->hdr, SLI4_CMN_CREATE_CQ, SLI4_SUBSYSTEM_COMMON,
CMD_V2, len);
cqv2->page_size = page_size / SLI_PAGE_SIZE;
/* valid values for number of pages: 1, 2, 4, 8 (sec 4.4.3) */
cqv2->num_pages = cpu_to_le16(num_pages);
if (!num_pages || num_pages > SLI4_CREATE_CQV2_MAX_PAGES)
return -EIO;
switch (num_pages) {
case 1:
dw5_flags |= SLI4_CQ_CNT_VAL(256);
break;
case 2:
dw5_flags |= SLI4_CQ_CNT_VAL(512);
break;
case 4:
dw5_flags |= SLI4_CQ_CNT_VAL(1024);
break;
case 8:
dw5_flags |= SLI4_CQ_CNT_VAL(LARGE);
cqv2->cqe_count = cpu_to_le16(n_cqe);
break;
default:
efc_log_err(sli4, "num_pages %d not valid\n", num_pages);
return -EIO;
}
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
dw5_flags |= SLI4_CREATE_CQV2_AUTOVALID;
dw5_flags |= SLI4_CREATE_CQV2_EVT;
dw5_flags |= SLI4_CREATE_CQV2_VALID;
cqv2->dw5_flags = cpu_to_le32(dw5_flags);
cqv2->dw6w1_arm = cpu_to_le16(dw6w1_arm);
cqv2->eq_id = cpu_to_le16(eq_id);
for (p = 0, addr = qmem->phys; p < num_pages; p++, addr += page_size) {
cqv2->page_phys_addr[p].low = cpu_to_le32(lower_32_bits(addr));
cqv2->page_phys_addr[p].high = cpu_to_le32(upper_32_bits(addr));
}
return 0;
}
static int
sli_cmd_common_create_eq(struct sli4 *sli4, void *buf, struct efc_dma *qmem)
{
struct sli4_rqst_cmn_create_eq *eq;
u32 p;
uintptr_t addr;
u16 num_pages;
u32 dw5_flags = 0;
u32 dw6_flags = 0, ver;
eq = sli_config_cmd_init(sli4, buf, SLI4_CFG_PYLD_LENGTH(cmn_create_eq),
NULL);
if (!eq)
return -EIO;
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
ver = CMD_V2;
else
ver = CMD_V0;
sli_cmd_fill_hdr(&eq->hdr, SLI4_CMN_CREATE_EQ, SLI4_SUBSYSTEM_COMMON,
ver, SLI4_RQST_PYLD_LEN(cmn_create_eq));
/* valid values for number of pages: 1, 2, 4 (sec 4.4.3) */
num_pages = qmem->size / SLI_PAGE_SIZE;
eq->num_pages = cpu_to_le16(num_pages);
switch (num_pages) {
case 1:
dw5_flags |= SLI4_EQE_SIZE_4;
dw6_flags |= SLI4_EQ_CNT_VAL(1024);
break;
case 2:
dw5_flags |= SLI4_EQE_SIZE_4;
dw6_flags |= SLI4_EQ_CNT_VAL(2048);
break;
case 4:
dw5_flags |= SLI4_EQE_SIZE_4;
dw6_flags |= SLI4_EQ_CNT_VAL(4096);
break;
default:
efc_log_err(sli4, "num_pages %d not valid\n", num_pages);
return -EIO;
}
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
dw5_flags |= SLI4_CREATE_EQ_AUTOVALID;
dw5_flags |= SLI4_CREATE_EQ_VALID;
dw6_flags &= (~SLI4_CREATE_EQ_ARM);
eq->dw5_flags = cpu_to_le32(dw5_flags);
eq->dw6_flags = cpu_to_le32(dw6_flags);
eq->dw7_delaymulti = cpu_to_le32(SLI4_CREATE_EQ_DELAYMULTI);
for (p = 0, addr = qmem->phys; p < num_pages;
p++, addr += SLI_PAGE_SIZE) {
eq->page_address[p].low = cpu_to_le32(lower_32_bits(addr));
eq->page_address[p].high = cpu_to_le32(upper_32_bits(addr));
}
return 0;
}
static int
sli_cmd_common_create_mq_ext(struct sli4 *sli4, void *buf, struct efc_dma *qmem,
u16 cq_id)
{
struct sli4_rqst_cmn_create_mq_ext *mq;
u32 p;
uintptr_t addr;
u32 num_pages;
u16 dw6w1_flags = 0;
mq = sli_config_cmd_init(sli4, buf,
SLI4_CFG_PYLD_LENGTH(cmn_create_mq_ext), NULL);
if (!mq)
return -EIO;
sli_cmd_fill_hdr(&mq->hdr, SLI4_CMN_CREATE_MQ_EXT,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN(cmn_create_mq_ext));
/* valid values for number of pages: 1, 2, 4, 8 (sec 4.4.12) */
num_pages = qmem->size / SLI_PAGE_SIZE;
mq->num_pages = cpu_to_le16(num_pages);
switch (num_pages) {
case 1:
dw6w1_flags |= SLI4_MQE_SIZE_16;
break;
case 2:
dw6w1_flags |= SLI4_MQE_SIZE_32;
break;
case 4:
dw6w1_flags |= SLI4_MQE_SIZE_64;
break;
case 8:
dw6w1_flags |= SLI4_MQE_SIZE_128;
break;
default:
efc_log_info(sli4, "num_pages %d not valid\n", num_pages);
return -EIO;
}
mq->async_event_bitmap = cpu_to_le32(SLI4_ASYNC_EVT_FC_ALL);
if (sli4->params.mq_create_version) {
mq->cq_id_v1 = cpu_to_le16(cq_id);
mq->hdr.dw3_version = cpu_to_le32(CMD_V1);
} else {
dw6w1_flags |= (cq_id << SLI4_CREATE_MQEXT_CQID_SHIFT);
}
mq->dw7_val = cpu_to_le32(SLI4_CREATE_MQEXT_VAL);
mq->dw6w1_flags = cpu_to_le16(dw6w1_flags);
for (p = 0, addr = qmem->phys; p < num_pages;
p++, addr += SLI_PAGE_SIZE) {
mq->page_phys_addr[p].low = cpu_to_le32(lower_32_bits(addr));
mq->page_phys_addr[p].high = cpu_to_le32(upper_32_bits(addr));
}
return 0;
}
int
sli_cmd_wq_create(struct sli4 *sli4, void *buf, struct efc_dma *qmem, u16 cq_id)
{
struct sli4_rqst_wq_create *wq;
u32 p;
uintptr_t addr;
u32 page_size = 0;
u32 n_wqe = 0;
u16 num_pages;
wq = sli_config_cmd_init(sli4, buf, SLI4_CFG_PYLD_LENGTH(wq_create),
NULL);
if (!wq)
return -EIO;
sli_cmd_fill_hdr(&wq->hdr, SLI4_OPC_WQ_CREATE, SLI4_SUBSYSTEM_FC,
CMD_V1, SLI4_RQST_PYLD_LEN(wq_create));
n_wqe = qmem->size / sli4->wqe_size;
switch (qmem->size) {
case 4096:
case 8192:
case 16384:
case 32768:
page_size = SZ_4K;
break;
case 65536:
page_size = SZ_8K;
break;
case 131072:
page_size = SZ_16K;
break;
case 262144:
page_size = SZ_32K;
break;
case 524288:
page_size = SZ_64K;
break;
default:
return -EIO;
}
/* valid values for number of pages(num_pages): 1-8 */
num_pages = sli_page_count(qmem->size, page_size);
wq->num_pages = cpu_to_le16(num_pages);
if (!num_pages || num_pages > SLI4_WQ_CREATE_MAX_PAGES)
return -EIO;
wq->cq_id = cpu_to_le16(cq_id);
wq->page_size = page_size / SLI_PAGE_SIZE;
if (sli4->wqe_size == SLI4_WQE_EXT_BYTES)
wq->wqe_size_byte |= SLI4_WQE_EXT_SIZE;
else
wq->wqe_size_byte |= SLI4_WQE_SIZE;
wq->wqe_count = cpu_to_le16(n_wqe);
for (p = 0, addr = qmem->phys; p < num_pages; p++, addr += page_size) {
wq->page_phys_addr[p].low = cpu_to_le32(lower_32_bits(addr));
wq->page_phys_addr[p].high = cpu_to_le32(upper_32_bits(addr));
}
return 0;
}
static int
sli_cmd_rq_create_v1(struct sli4 *sli4, void *buf, struct efc_dma *qmem,
u16 cq_id, u16 buffer_size)
{
struct sli4_rqst_rq_create_v1 *rq;
u32 p;
uintptr_t addr;
u32 num_pages;
rq = sli_config_cmd_init(sli4, buf, SLI4_CFG_PYLD_LENGTH(rq_create_v1),
NULL);
if (!rq)
return -EIO;
sli_cmd_fill_hdr(&rq->hdr, SLI4_OPC_RQ_CREATE, SLI4_SUBSYSTEM_FC,
CMD_V1, SLI4_RQST_PYLD_LEN(rq_create_v1));
/* Disable "no buffer warnings" to avoid Lancer bug */
rq->dim_dfd_dnb |= SLI4_RQ_CREATE_V1_DNB;
/* valid values for number of pages: 1-8 (sec 4.5.6) */
num_pages = sli_page_count(qmem->size, SLI_PAGE_SIZE);
rq->num_pages = cpu_to_le16(num_pages);
if (!num_pages ||
num_pages > SLI4_RQ_CREATE_V1_MAX_PAGES) {
efc_log_info(sli4, "num_pages %d not valid, max %d\n",
num_pages, SLI4_RQ_CREATE_V1_MAX_PAGES);
return -EIO;
}
/*
* RQE count is the total number of entries (note not lg2(# entries))
*/
rq->rqe_count = cpu_to_le16(qmem->size / SLI4_RQE_SIZE);
rq->rqe_size_byte |= SLI4_RQE_SIZE_8;
rq->page_size = SLI4_RQ_PAGE_SIZE_4096;
if (buffer_size < sli4->rq_min_buf_size ||
buffer_size > sli4->rq_max_buf_size) {
efc_log_err(sli4, "buffer_size %d out of range (%d-%d)\n",
buffer_size, sli4->rq_min_buf_size,
sli4->rq_max_buf_size);
return -EIO;
}
rq->buffer_size = cpu_to_le32(buffer_size);
rq->cq_id = cpu_to_le16(cq_id);
for (p = 0, addr = qmem->phys;
p < num_pages;
p++, addr += SLI_PAGE_SIZE) {
rq->page_phys_addr[p].low = cpu_to_le32(lower_32_bits(addr));
rq->page_phys_addr[p].high = cpu_to_le32(upper_32_bits(addr));
}
return 0;
}
static int
sli_cmd_rq_create_v2(struct sli4 *sli4, u32 num_rqs,
struct sli4_queue *qs[], u32 base_cq_id,
u32 header_buffer_size,
u32 payload_buffer_size, struct efc_dma *dma)
{
struct sli4_rqst_rq_create_v2 *req = NULL;
u32 i, p, offset = 0;
u32 payload_size, page_count;
uintptr_t addr;
u32 num_pages;
__le32 len;
page_count = sli_page_count(qs[0]->dma.size, SLI_PAGE_SIZE) * num_rqs;
/* Payload length must accommodate both request and response */
payload_size = max(SLI4_RQST_CMDSZ(rq_create_v2) +
SZ_DMAADDR * page_count,
sizeof(struct sli4_rsp_cmn_create_queue_set));
dma->size = payload_size;
dma->virt = dma_alloc_coherent(&sli4->pci->dev, dma->size,
&dma->phys, GFP_KERNEL);
if (!dma->virt)
return -EIO;
memset(dma->virt, 0, payload_size);
req = sli_config_cmd_init(sli4, sli4->bmbx.virt, payload_size, dma);
if (!req)
return -EIO;
len = SLI4_RQST_PYLD_LEN_VAR(rq_create_v2, SZ_DMAADDR * page_count);
sli_cmd_fill_hdr(&req->hdr, SLI4_OPC_RQ_CREATE, SLI4_SUBSYSTEM_FC,
CMD_V2, len);
/* Fill Payload fields */
req->dim_dfd_dnb |= SLI4_RQCREATEV2_DNB;
num_pages = sli_page_count(qs[0]->dma.size, SLI_PAGE_SIZE);
req->num_pages = cpu_to_le16(num_pages);
req->rqe_count = cpu_to_le16(qs[0]->dma.size / SLI4_RQE_SIZE);
req->rqe_size_byte |= SLI4_RQE_SIZE_8;
req->page_size = SLI4_RQ_PAGE_SIZE_4096;
req->rq_count = num_rqs;
req->base_cq_id = cpu_to_le16(base_cq_id);
req->hdr_buffer_size = cpu_to_le16(header_buffer_size);
req->payload_buffer_size = cpu_to_le16(payload_buffer_size);
for (i = 0; i < num_rqs; i++) {
for (p = 0, addr = qs[i]->dma.phys; p < num_pages;
p++, addr += SLI_PAGE_SIZE) {
req->page_phys_addr[offset].low =
cpu_to_le32(lower_32_bits(addr));
req->page_phys_addr[offset].high =
cpu_to_le32(upper_32_bits(addr));
offset++;
}
}
return 0;
}
static void
__sli_queue_destroy(struct sli4 *sli4, struct sli4_queue *q)
{
if (!q->dma.size)
return;
dma_free_coherent(&sli4->pci->dev, q->dma.size,
q->dma.virt, q->dma.phys);
memset(&q->dma, 0, sizeof(struct efc_dma));
}
int
__sli_queue_init(struct sli4 *sli4, struct sli4_queue *q, u32 qtype,
size_t size, u32 n_entries, u32 align)
{
if (q->dma.virt) {
efc_log_err(sli4, "%s failed\n", __func__);
return -EIO;
}
memset(q, 0, sizeof(struct sli4_queue));
q->dma.size = size * n_entries;
q->dma.virt = dma_alloc_coherent(&sli4->pci->dev, q->dma.size,
&q->dma.phys, GFP_KERNEL);
if (!q->dma.virt) {
memset(&q->dma, 0, sizeof(struct efc_dma));
efc_log_err(sli4, "%s allocation failed\n", SLI4_QNAME[qtype]);
return -EIO;
}
memset(q->dma.virt, 0, size * n_entries);
spin_lock_init(&q->lock);
q->type = qtype;
q->size = size;
q->length = n_entries;
if (q->type == SLI4_QTYPE_EQ || q->type == SLI4_QTYPE_CQ) {
/* For prism, phase will be flipped after
* a sweep through eq and cq
*/
q->phase = 1;
}
/* Limit to hwf the queue size per interrupt */
q->proc_limit = n_entries / 2;
if (q->type == SLI4_QTYPE_EQ)
q->posted_limit = q->length / 2;
else
q->posted_limit = 64;
return 0;
}
int
sli_fc_rq_alloc(struct sli4 *sli4, struct sli4_queue *q,
u32 n_entries, u32 buffer_size,
struct sli4_queue *cq, bool is_hdr)
{
if (__sli_queue_init(sli4, q, SLI4_QTYPE_RQ, SLI4_RQE_SIZE,
n_entries, SLI_PAGE_SIZE))
return -EIO;
if (sli_cmd_rq_create_v1(sli4, sli4->bmbx.virt, &q->dma, cq->id,
buffer_size))
goto error;
if (__sli_create_queue(sli4, q))
goto error;
if (is_hdr && q->id & 1) {
efc_log_info(sli4, "bad header RQ_ID %d\n", q->id);
goto error;
} else if (!is_hdr && (q->id & 1) == 0) {
efc_log_info(sli4, "bad data RQ_ID %d\n", q->id);
goto error;
}
if (is_hdr)
q->u.flag |= SLI4_QUEUE_FLAG_HDR;
else
q->u.flag &= ~SLI4_QUEUE_FLAG_HDR;
return 0;
error:
__sli_queue_destroy(sli4, q);
return -EIO;
}
int
sli_fc_rq_set_alloc(struct sli4 *sli4, u32 num_rq_pairs,
struct sli4_queue *qs[], u32 base_cq_id,
u32 n_entries, u32 header_buffer_size,
u32 payload_buffer_size)
{
u32 i;
struct efc_dma dma = {0};
struct sli4_rsp_cmn_create_queue_set *rsp = NULL;
void __iomem *db_regaddr = NULL;
u32 num_rqs = num_rq_pairs * 2;
for (i = 0; i < num_rqs; i++) {
if (__sli_queue_init(sli4, qs[i], SLI4_QTYPE_RQ,
SLI4_RQE_SIZE, n_entries,
SLI_PAGE_SIZE)) {
goto error;
}
}
if (sli_cmd_rq_create_v2(sli4, num_rqs, qs, base_cq_id,
header_buffer_size, payload_buffer_size,
&dma)) {
goto error;
}
if (sli_bmbx_command(sli4)) {
efc_log_err(sli4, "bootstrap mailbox write failed RQSet\n");
goto error;
}
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
db_regaddr = sli4->reg[1] + SLI4_IF6_RQ_DB_REG;
else
db_regaddr = sli4->reg[0] + SLI4_RQ_DB_REG;
rsp = dma.virt;
if (rsp->hdr.status) {
efc_log_err(sli4, "bad create RQSet status=%#x addl=%#x\n",
rsp->hdr.status, rsp->hdr.additional_status);
goto error;
}
for (i = 0; i < num_rqs; i++) {
qs[i]->id = i + le16_to_cpu(rsp->q_id);
if ((qs[i]->id & 1) == 0)
qs[i]->u.flag |= SLI4_QUEUE_FLAG_HDR;
else
qs[i]->u.flag &= ~SLI4_QUEUE_FLAG_HDR;
qs[i]->db_regaddr = db_regaddr;
}
dma_free_coherent(&sli4->pci->dev, dma.size, dma.virt, dma.phys);
return 0;
error:
for (i = 0; i < num_rqs; i++)
__sli_queue_destroy(sli4, qs[i]);
if (dma.virt)
dma_free_coherent(&sli4->pci->dev, dma.size, dma.virt,
dma.phys);
return -EIO;
}
static int
sli_res_sli_config(struct sli4 *sli4, void *buf)
{
struct sli4_cmd_sli_config *sli_config = buf;
/* sanity check */
if (!buf || sli_config->hdr.command !=
SLI4_MBX_CMD_SLI_CONFIG) {
efc_log_err(sli4, "bad parameter buf=%p cmd=%#x\n", buf,
buf ? sli_config->hdr.command : -1);
return -EIO;
}
if (le16_to_cpu(sli_config->hdr.status))
return le16_to_cpu(sli_config->hdr.status);
if (le32_to_cpu(sli_config->dw1_flags) & SLI4_SLICONF_EMB)
return sli_config->payload.embed[4];
efc_log_info(sli4, "external buffers not supported\n");
return -EIO;
}
int
__sli_create_queue(struct sli4 *sli4, struct sli4_queue *q)
{
struct sli4_rsp_cmn_create_queue *res_q = NULL;
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox write fail %s\n",
SLI4_QNAME[q->type]);
return -EIO;
}
if (sli_res_sli_config(sli4, sli4->bmbx.virt)) {
efc_log_err(sli4, "bad status create %s\n",
SLI4_QNAME[q->type]);
return -EIO;
}
res_q = (void *)((u8 *)sli4->bmbx.virt +
offsetof(struct sli4_cmd_sli_config, payload));
if (res_q->hdr.status) {
efc_log_err(sli4, "bad create %s status=%#x addl=%#x\n",
SLI4_QNAME[q->type], res_q->hdr.status,
res_q->hdr.additional_status);
return -EIO;
}
q->id = le16_to_cpu(res_q->q_id);
switch (q->type) {
case SLI4_QTYPE_EQ:
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
q->db_regaddr = sli4->reg[1] + SLI4_IF6_EQ_DB_REG;
else
q->db_regaddr = sli4->reg[0] + SLI4_EQCQ_DB_REG;
break;
case SLI4_QTYPE_CQ:
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
q->db_regaddr = sli4->reg[1] + SLI4_IF6_CQ_DB_REG;
else
q->db_regaddr = sli4->reg[0] + SLI4_EQCQ_DB_REG;
break;
case SLI4_QTYPE_MQ:
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
q->db_regaddr = sli4->reg[1] + SLI4_IF6_MQ_DB_REG;
else
q->db_regaddr = sli4->reg[0] + SLI4_MQ_DB_REG;
break;
case SLI4_QTYPE_RQ:
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
q->db_regaddr = sli4->reg[1] + SLI4_IF6_RQ_DB_REG;
else
q->db_regaddr = sli4->reg[0] + SLI4_RQ_DB_REG;
break;
case SLI4_QTYPE_WQ:
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
q->db_regaddr = sli4->reg[1] + SLI4_IF6_WQ_DB_REG;
else
q->db_regaddr = sli4->reg[0] + SLI4_IO_WQ_DB_REG;
break;
default:
break;
}
return 0;
}
int
sli_get_queue_entry_size(struct sli4 *sli4, u32 qtype)
{
u32 size = 0;
switch (qtype) {
case SLI4_QTYPE_EQ:
size = sizeof(u32);
break;
case SLI4_QTYPE_CQ:
size = 16;
break;
case SLI4_QTYPE_MQ:
size = 256;
break;
case SLI4_QTYPE_WQ:
size = sli4->wqe_size;
break;
case SLI4_QTYPE_RQ:
size = SLI4_RQE_SIZE;
break;
default:
efc_log_info(sli4, "unknown queue type %d\n", qtype);
return -1;
}
return size;
}
int
sli_queue_alloc(struct sli4 *sli4, u32 qtype,
struct sli4_queue *q, u32 n_entries,
struct sli4_queue *assoc)
{
int size;
u32 align = 0;
/* get queue size */
size = sli_get_queue_entry_size(sli4, qtype);
if (size < 0)
return -EIO;
align = SLI_PAGE_SIZE;
if (__sli_queue_init(sli4, q, qtype, size, n_entries, align))
return -EIO;
switch (qtype) {
case SLI4_QTYPE_EQ:
if (!sli_cmd_common_create_eq(sli4, sli4->bmbx.virt, &q->dma) &&
!__sli_create_queue(sli4, q))
return 0;
break;
case SLI4_QTYPE_CQ:
if (!sli_cmd_common_create_cq(sli4, sli4->bmbx.virt, &q->dma,
assoc ? assoc->id : 0) &&
!__sli_create_queue(sli4, q))
return 0;
break;
case SLI4_QTYPE_MQ:
assoc->u.flag |= SLI4_QUEUE_FLAG_MQ;
if (!sli_cmd_common_create_mq_ext(sli4, sli4->bmbx.virt,
&q->dma, assoc->id) &&
!__sli_create_queue(sli4, q))
return 0;
break;
case SLI4_QTYPE_WQ:
if (!sli_cmd_wq_create(sli4, sli4->bmbx.virt, &q->dma,
assoc ? assoc->id : 0) &&
!__sli_create_queue(sli4, q))
return 0;
break;
default:
efc_log_info(sli4, "unknown queue type %d\n", qtype);
}
__sli_queue_destroy(sli4, q);
return -EIO;
}
static int sli_cmd_cq_set_create(struct sli4 *sli4,
struct sli4_queue *qs[], u32 num_cqs,
struct sli4_queue *eqs[],
struct efc_dma *dma)
{
struct sli4_rqst_cmn_create_cq_set_v0 *req = NULL;
uintptr_t addr;
u32 i, offset = 0, page_bytes = 0, payload_size;
u32 p = 0, page_size = 0, n_cqe = 0, num_pages_cq;
u32 dw5_flags = 0;
u16 dw6w1_flags = 0;
__le32 req_len;
n_cqe = qs[0]->dma.size / SLI4_CQE_BYTES;
switch (n_cqe) {
case 256:
case 512:
case 1024:
case 2048:
page_size = 1;
break;
case 4096:
page_size = 2;
break;
default:
return -EIO;
}
page_bytes = page_size * SLI_PAGE_SIZE;
num_pages_cq = sli_page_count(qs[0]->dma.size, page_bytes);
payload_size = max(SLI4_RQST_CMDSZ(cmn_create_cq_set_v0) +
(SZ_DMAADDR * num_pages_cq * num_cqs),
sizeof(struct sli4_rsp_cmn_create_queue_set));
dma->size = payload_size;
dma->virt = dma_alloc_coherent(&sli4->pci->dev, dma->size,
&dma->phys, GFP_KERNEL);
if (!dma->virt)
return -EIO;
memset(dma->virt, 0, payload_size);
req = sli_config_cmd_init(sli4, sli4->bmbx.virt, payload_size, dma);
if (!req)
return -EIO;
req_len = SLI4_RQST_PYLD_LEN_VAR(cmn_create_cq_set_v0,
SZ_DMAADDR * num_pages_cq * num_cqs);
sli_cmd_fill_hdr(&req->hdr, SLI4_CMN_CREATE_CQ_SET, SLI4_SUBSYSTEM_FC,
CMD_V0, req_len);
req->page_size = page_size;
req->num_pages = cpu_to_le16(num_pages_cq);
switch (num_pages_cq) {
case 1:
dw5_flags |= SLI4_CQ_CNT_VAL(256);
break;
case 2:
dw5_flags |= SLI4_CQ_CNT_VAL(512);
break;
case 4:
dw5_flags |= SLI4_CQ_CNT_VAL(1024);
break;
case 8:
dw5_flags |= SLI4_CQ_CNT_VAL(LARGE);
dw6w1_flags |= (n_cqe & SLI4_CREATE_CQSETV0_CQE_COUNT);
break;
default:
efc_log_info(sli4, "num_pages %d not valid\n", num_pages_cq);
return -EIO;
}
dw5_flags |= SLI4_CREATE_CQSETV0_EVT;
dw5_flags |= SLI4_CREATE_CQSETV0_VALID;
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
dw5_flags |= SLI4_CREATE_CQSETV0_AUTOVALID;
dw6w1_flags &= ~SLI4_CREATE_CQSETV0_ARM;
req->dw5_flags = cpu_to_le32(dw5_flags);
req->dw6w1_flags = cpu_to_le16(dw6w1_flags);
req->num_cq_req = cpu_to_le16(num_cqs);
/* Fill page addresses of all the CQs. */
for (i = 0; i < num_cqs; i++) {
req->eq_id[i] = cpu_to_le16(eqs[i]->id);
for (p = 0, addr = qs[i]->dma.phys; p < num_pages_cq;
p++, addr += page_bytes) {
req->page_phys_addr[offset].low =
cpu_to_le32(lower_32_bits(addr));
req->page_phys_addr[offset].high =
cpu_to_le32(upper_32_bits(addr));
offset++;
}
}
return 0;
}
int
sli_cq_alloc_set(struct sli4 *sli4, struct sli4_queue *qs[],
u32 num_cqs, u32 n_entries, struct sli4_queue *eqs[])
{
u32 i;
struct efc_dma dma = {0};
struct sli4_rsp_cmn_create_queue_set *res;
void __iomem *db_regaddr;
/* Align the queue DMA memory */
for (i = 0; i < num_cqs; i++) {
if (__sli_queue_init(sli4, qs[i], SLI4_QTYPE_CQ, SLI4_CQE_BYTES,
n_entries, SLI_PAGE_SIZE))
goto error;
}
if (sli_cmd_cq_set_create(sli4, qs, num_cqs, eqs, &dma))
goto error;
if (sli_bmbx_command(sli4))
goto error;
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
db_regaddr = sli4->reg[1] + SLI4_IF6_CQ_DB_REG;
else
db_regaddr = sli4->reg[0] + SLI4_EQCQ_DB_REG;
res = dma.virt;
if (res->hdr.status) {
efc_log_err(sli4, "bad create CQSet status=%#x addl=%#x\n",
res->hdr.status, res->hdr.additional_status);
goto error;
}
/* Check if we got all requested CQs. */
if (le16_to_cpu(res->num_q_allocated) != num_cqs) {
efc_log_crit(sli4, "Requested count CQs doesn't match.\n");
goto error;
}
/* Fill the resp cq ids. */
for (i = 0; i < num_cqs; i++) {
qs[i]->id = le16_to_cpu(res->q_id) + i;
qs[i]->db_regaddr = db_regaddr;
}
dma_free_coherent(&sli4->pci->dev, dma.size, dma.virt, dma.phys);
return 0;
error:
for (i = 0; i < num_cqs; i++)
__sli_queue_destroy(sli4, qs[i]);
if (dma.virt)
dma_free_coherent(&sli4->pci->dev, dma.size, dma.virt,
dma.phys);
return -EIO;
}
static int
sli_cmd_common_destroy_q(struct sli4 *sli4, u8 opc, u8 subsystem, u16 q_id)
{
struct sli4_rqst_cmn_destroy_q *req;
/* Payload length must accommodate both request and response */
req = sli_config_cmd_init(sli4, sli4->bmbx.virt,
SLI4_CFG_PYLD_LENGTH(cmn_destroy_q), NULL);
if (!req)
return -EIO;
sli_cmd_fill_hdr(&req->hdr, opc, subsystem,
CMD_V0, SLI4_RQST_PYLD_LEN(cmn_destroy_q));
req->q_id = cpu_to_le16(q_id);
return 0;
}
int
sli_queue_free(struct sli4 *sli4, struct sli4_queue *q,
u32 destroy_queues, u32 free_memory)
{
int rc = 0;
u8 opcode, subsystem;
struct sli4_rsp_hdr *res;
if (!q) {
efc_log_err(sli4, "bad parameter sli4=%p q=%p\n", sli4, q);
return -EIO;
}
if (!destroy_queues)
goto free_mem;
switch (q->type) {
case SLI4_QTYPE_EQ:
opcode = SLI4_CMN_DESTROY_EQ;
subsystem = SLI4_SUBSYSTEM_COMMON;
break;
case SLI4_QTYPE_CQ:
opcode = SLI4_CMN_DESTROY_CQ;
subsystem = SLI4_SUBSYSTEM_COMMON;
break;
case SLI4_QTYPE_MQ:
opcode = SLI4_CMN_DESTROY_MQ;
subsystem = SLI4_SUBSYSTEM_COMMON;
break;
case SLI4_QTYPE_WQ:
opcode = SLI4_OPC_WQ_DESTROY;
subsystem = SLI4_SUBSYSTEM_FC;
break;
case SLI4_QTYPE_RQ:
opcode = SLI4_OPC_RQ_DESTROY;
subsystem = SLI4_SUBSYSTEM_FC;
break;
default:
efc_log_info(sli4, "bad queue type %d\n", q->type);
rc = -EIO;
goto free_mem;
}
rc = sli_cmd_common_destroy_q(sli4, opcode, subsystem, q->id);
if (rc)
goto free_mem;
rc = sli_bmbx_command(sli4);
if (rc)
goto free_mem;
rc = sli_res_sli_config(sli4, sli4->bmbx.virt);
if (rc)
goto free_mem;
res = (void *)((u8 *)sli4->bmbx.virt +
offsetof(struct sli4_cmd_sli_config, payload));
if (res->status) {
efc_log_err(sli4, "destroy %s st=%#x addl=%#x\n",
SLI4_QNAME[q->type], res->status,
res->additional_status);
rc = -EIO;
goto free_mem;
}
free_mem:
if (free_memory)
__sli_queue_destroy(sli4, q);
return rc;
}
int
sli_queue_eq_arm(struct sli4 *sli4, struct sli4_queue *q, bool arm)
{
u32 val;
unsigned long flags = 0;
u32 a = arm ? SLI4_EQCQ_ARM : SLI4_EQCQ_UNARM;
spin_lock_irqsave(&q->lock, flags);
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
val = sli_format_if6_eq_db_data(q->n_posted, q->id, a);
else
val = sli_format_eq_db_data(q->n_posted, q->id, a);
writel(val, q->db_regaddr);
q->n_posted = 0;
spin_unlock_irqrestore(&q->lock, flags);
return 0;
}
int
sli_queue_arm(struct sli4 *sli4, struct sli4_queue *q, bool arm)
{
u32 val = 0;
unsigned long flags = 0;
u32 a = arm ? SLI4_EQCQ_ARM : SLI4_EQCQ_UNARM;
spin_lock_irqsave(&q->lock, flags);
switch (q->type) {
case SLI4_QTYPE_EQ:
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
val = sli_format_if6_eq_db_data(q->n_posted, q->id, a);
else
val = sli_format_eq_db_data(q->n_posted, q->id, a);
writel(val, q->db_regaddr);
q->n_posted = 0;
break;
case SLI4_QTYPE_CQ:
if (sli4->if_type == SLI4_INTF_IF_TYPE_6)
val = sli_format_if6_cq_db_data(q->n_posted, q->id, a);
else
val = sli_format_cq_db_data(q->n_posted, q->id, a);
writel(val, q->db_regaddr);
q->n_posted = 0;
break;
default:
efc_log_info(sli4, "should only be used for EQ/CQ, not %s\n",
SLI4_QNAME[q->type]);
}
spin_unlock_irqrestore(&q->lock, flags);
return 0;
}
int
sli_wq_write(struct sli4 *sli4, struct sli4_queue *q, u8 *entry)
{
u8 *qe = q->dma.virt;
u32 qindex;
u32 val = 0;
qindex = q->index;
qe += q->index * q->size;
if (sli4->params.perf_wq_id_association)
sli_set_wq_id_association(entry, q->id);
memcpy(qe, entry, q->size);
val = sli_format_wq_db_data(q->id);
writel(val, q->db_regaddr);
q->index = (q->index + 1) & (q->length - 1);
return qindex;
}
int
sli_mq_write(struct sli4 *sli4, struct sli4_queue *q, u8 *entry)
{
u8 *qe = q->dma.virt;
u32 qindex;
u32 val = 0;
unsigned long flags;
spin_lock_irqsave(&q->lock, flags);
qindex = q->index;
qe += q->index * q->size;
memcpy(qe, entry, q->size);
val = sli_format_mq_db_data(q->id);
writel(val, q->db_regaddr);
q->index = (q->index + 1) & (q->length - 1);
spin_unlock_irqrestore(&q->lock, flags);
return qindex;
}
int
sli_rq_write(struct sli4 *sli4, struct sli4_queue *q, u8 *entry)
{
u8 *qe = q->dma.virt;
u32 qindex;
u32 val = 0;
qindex = q->index;
qe += q->index * q->size;
memcpy(qe, entry, q->size);
/*
* In RQ-pair, an RQ either contains the FC header
* (i.e. is_hdr == TRUE) or the payload.
*
* Don't ring doorbell for payload RQ
*/
if (!(q->u.flag & SLI4_QUEUE_FLAG_HDR))
goto skip;
val = sli_format_rq_db_data(q->id);
writel(val, q->db_regaddr);
skip:
q->index = (q->index + 1) & (q->length - 1);
return qindex;
}
int
sli_eq_read(struct sli4 *sli4, struct sli4_queue *q, u8 *entry)
{
u8 *qe = q->dma.virt;
unsigned long flags = 0;
u16 wflags = 0;
spin_lock_irqsave(&q->lock, flags);
qe += q->index * q->size;
/* Check if eqe is valid */
wflags = le16_to_cpu(((struct sli4_eqe *)qe)->dw0w0_flags);
if ((wflags & SLI4_EQE_VALID) != q->phase) {
spin_unlock_irqrestore(&q->lock, flags);
return -EIO;
}
if (sli4->if_type != SLI4_INTF_IF_TYPE_6) {
wflags &= ~SLI4_EQE_VALID;
((struct sli4_eqe *)qe)->dw0w0_flags = cpu_to_le16(wflags);
}
memcpy(entry, qe, q->size);
q->index = (q->index + 1) & (q->length - 1);
q->n_posted++;
/*
* For prism, the phase value will be used
* to check the validity of eq/cq entries.
* The value toggles after a complete sweep
* through the queue.
*/
if (sli4->if_type == SLI4_INTF_IF_TYPE_6 && q->index == 0)
q->phase ^= (u16)0x1;
spin_unlock_irqrestore(&q->lock, flags);
return 0;
}
int
sli_cq_read(struct sli4 *sli4, struct sli4_queue *q, u8 *entry)
{
u8 *qe = q->dma.virt;
unsigned long flags = 0;
u32 dwflags = 0;
bool valid_bit_set;
spin_lock_irqsave(&q->lock, flags);
qe += q->index * q->size;
/* Check if cqe is valid */
dwflags = le32_to_cpu(((struct sli4_mcqe *)qe)->dw3_flags);
valid_bit_set = (dwflags & SLI4_MCQE_VALID) != 0;
if (valid_bit_set != q->phase) {
spin_unlock_irqrestore(&q->lock, flags);
return -EIO;
}
if (sli4->if_type != SLI4_INTF_IF_TYPE_6) {
dwflags &= ~SLI4_MCQE_VALID;
((struct sli4_mcqe *)qe)->dw3_flags = cpu_to_le32(dwflags);
}
memcpy(entry, qe, q->size);
q->index = (q->index + 1) & (q->length - 1);
q->n_posted++;
/*
* For prism, the phase value will be used
* to check the validity of eq/cq entries.
* The value toggles after a complete sweep
* through the queue.
*/
if (sli4->if_type == SLI4_INTF_IF_TYPE_6 && q->index == 0)
q->phase ^= (u16)0x1;
spin_unlock_irqrestore(&q->lock, flags);
return 0;
}
int
sli_mq_read(struct sli4 *sli4, struct sli4_queue *q, u8 *entry)
{
u8 *qe = q->dma.virt;
unsigned long flags = 0;
spin_lock_irqsave(&q->lock, flags);
qe += q->u.r_idx * q->size;
/* Check if mqe is valid */
if (q->index == q->u.r_idx) {
spin_unlock_irqrestore(&q->lock, flags);
return -EIO;
}
memcpy(entry, qe, q->size);
q->u.r_idx = (q->u.r_idx + 1) & (q->length - 1);
spin_unlock_irqrestore(&q->lock, flags);
return 0;
}
int
sli_eq_parse(struct sli4 *sli4, u8 *buf, u16 *cq_id)
{
struct sli4_eqe *eqe = (void *)buf;
int rc = 0;
u16 flags = 0;
u16 majorcode;
u16 minorcode;
if (!buf || !cq_id) {
efc_log_err(sli4, "bad parameters sli4=%p buf=%p cq_id=%p\n",
sli4, buf, cq_id);
return -EIO;
}
flags = le16_to_cpu(eqe->dw0w0_flags);
majorcode = (flags & SLI4_EQE_MJCODE) >> 1;
minorcode = (flags & SLI4_EQE_MNCODE) >> 4;
switch (majorcode) {
case SLI4_MAJOR_CODE_STANDARD:
*cq_id = le16_to_cpu(eqe->resource_id);
break;
case SLI4_MAJOR_CODE_SENTINEL:
efc_log_info(sli4, "sentinel EQE\n");
rc = SLI4_EQE_STATUS_EQ_FULL;
break;
default:
efc_log_info(sli4, "Unsupported EQE: major %x minor %x\n",
majorcode, minorcode);
rc = -EIO;
}
return rc;
}
int
sli_cq_parse(struct sli4 *sli4, struct sli4_queue *cq, u8 *cqe,
enum sli4_qentry *etype, u16 *q_id)
{
int rc = 0;
if (!cq || !cqe || !etype) {
efc_log_err(sli4, "bad params sli4=%p cq=%p cqe=%p etype=%p q_id=%p\n",
sli4, cq, cqe, etype, q_id);
return -EINVAL;
}
/* Parse a CQ entry to retrieve the event type and the queue id */
if (cq->u.flag & SLI4_QUEUE_FLAG_MQ) {
struct sli4_mcqe *mcqe = (void *)cqe;
if (le32_to_cpu(mcqe->dw3_flags) & SLI4_MCQE_AE) {
*etype = SLI4_QENTRY_ASYNC;
} else {
*etype = SLI4_QENTRY_MQ;
rc = sli_cqe_mq(sli4, mcqe);
}
*q_id = -1;
} else {
rc = sli_fc_cqe_parse(sli4, cq, cqe, etype, q_id);
}
return rc;
}
int
sli_abort_wqe(struct sli4 *sli, void *buf, enum sli4_abort_type type,
bool send_abts, u32 ids, u32 mask, u16 tag, u16 cq_id)
{
struct sli4_abort_wqe *abort = buf;
memset(buf, 0, sli->wqe_size);
switch (type) {
case SLI4_ABORT_XRI:
abort->criteria = SLI4_ABORT_CRITERIA_XRI_TAG;
if (mask) {
efc_log_warn(sli, "%#x aborting XRI %#x warning non-zero mask",
mask, ids);
mask = 0;
}
break;
case SLI4_ABORT_ABORT_ID:
abort->criteria = SLI4_ABORT_CRITERIA_ABORT_TAG;
break;
case SLI4_ABORT_REQUEST_ID:
abort->criteria = SLI4_ABORT_CRITERIA_REQUEST_TAG;
break;
default:
efc_log_info(sli, "unsupported type %#x\n", type);
return -EIO;
}
abort->ia_ir_byte |= send_abts ? 0 : 1;
/* Suppress ABTS retries */
abort->ia_ir_byte |= SLI4_ABRT_WQE_IR;
abort->t_mask = cpu_to_le32(mask);
abort->t_tag = cpu_to_le32(ids);
abort->command = SLI4_WQE_ABORT;
abort->request_tag = cpu_to_le16(tag);
abort->dw10w0_flags = cpu_to_le16(SLI4_ABRT_WQE_QOSD);
abort->cq_id = cpu_to_le16(cq_id);
abort->cmdtype_wqec_byte |= SLI4_CMD_ABORT_WQE;
return 0;
}
int
sli_els_request64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl,
struct sli_els_params *params)
{
struct sli4_els_request64_wqe *els = buf;
struct sli4_sge *sge = sgl->virt;
bool is_fabric = false;
struct sli4_bde *bptr;
memset(buf, 0, sli->wqe_size);
bptr = &els->els_request_payload;
if (sli->params.sgl_pre_registered) {
els->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_REQ_WQE_XBL;
els->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_REQ_WQE_DBDE;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(params->xmit_len & SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[0].buffer_address_low;
bptr->u.data.high = sge[0].buffer_address_high;
} else {
els->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_REQ_WQE_XBL;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) |
((2 * sizeof(struct sli4_sge)) &
SLI4_BDE_LEN_MASK));
bptr->u.blp.low = cpu_to_le32(lower_32_bits(sgl->phys));
bptr->u.blp.high = cpu_to_le32(upper_32_bits(sgl->phys));
}
els->els_request_payload_length = cpu_to_le32(params->xmit_len);
els->max_response_payload_length = cpu_to_le32(params->rsp_len);
els->xri_tag = cpu_to_le16(params->xri);
els->timer = params->timeout;
els->class_byte |= SLI4_GENERIC_CLASS_CLASS_3;
els->command = SLI4_WQE_ELS_REQUEST64;
els->request_tag = cpu_to_le16(params->tag);
els->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_REQ_WQE_IOD;
els->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_REQ_WQE_QOSD;
/* figure out the ELS_ID value from the request buffer */
switch (params->cmd) {
case ELS_LOGO:
els->cmdtype_elsid_byte |=
SLI4_ELS_REQUEST64_LOGO << SLI4_REQ_WQE_ELSID_SHFT;
if (params->rpi_registered) {
els->ct_byte |=
SLI4_GENERIC_CONTEXT_RPI << SLI4_REQ_WQE_CT_SHFT;
els->context_tag = cpu_to_le16(params->rpi);
} else {
els->ct_byte |=
SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT;
els->context_tag = cpu_to_le16(params->vpi);
}
if (params->d_id == FC_FID_FLOGI)
is_fabric = true;
break;
case ELS_FDISC:
if (params->d_id == FC_FID_FLOGI)
is_fabric = true;
if (params->s_id == 0) {
els->cmdtype_elsid_byte |=
SLI4_ELS_REQUEST64_FDISC << SLI4_REQ_WQE_ELSID_SHFT;
is_fabric = true;
} else {
els->cmdtype_elsid_byte |=
SLI4_ELS_REQUEST64_OTHER << SLI4_REQ_WQE_ELSID_SHFT;
}
els->ct_byte |=
SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT;
els->context_tag = cpu_to_le16(params->vpi);
els->sid_sp_dword |= cpu_to_le32(1 << SLI4_REQ_WQE_SP_SHFT);
break;
case ELS_FLOGI:
els->ct_byte |=
SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT;
els->context_tag = cpu_to_le16(params->vpi);
/*
* Set SP here ... we haven't done a REG_VPI yet
* need to maybe not set this when we have
* completed VFI/VPI registrations ...
*
* Use the FC_ID of the SPORT if it has been allocated,
* otherwise use an S_ID of zero.
*/
els->sid_sp_dword |= cpu_to_le32(1 << SLI4_REQ_WQE_SP_SHFT);
if (params->s_id != U32_MAX)
els->sid_sp_dword |= cpu_to_le32(params->s_id);
break;
case ELS_PLOGI:
els->cmdtype_elsid_byte |=
SLI4_ELS_REQUEST64_PLOGI << SLI4_REQ_WQE_ELSID_SHFT;
els->ct_byte |=
SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT;
els->context_tag = cpu_to_le16(params->vpi);
break;
case ELS_SCR:
els->cmdtype_elsid_byte |=
SLI4_ELS_REQUEST64_OTHER << SLI4_REQ_WQE_ELSID_SHFT;
els->ct_byte |=
SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT;
els->context_tag = cpu_to_le16(params->vpi);
break;
default:
els->cmdtype_elsid_byte |=
SLI4_ELS_REQUEST64_OTHER << SLI4_REQ_WQE_ELSID_SHFT;
if (params->rpi_registered) {
els->ct_byte |= (SLI4_GENERIC_CONTEXT_RPI <<
SLI4_REQ_WQE_CT_SHFT);
els->context_tag = cpu_to_le16(params->vpi);
} else {
els->ct_byte |=
SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT;
els->context_tag = cpu_to_le16(params->vpi);
}
break;
}
if (is_fabric)
els->cmdtype_elsid_byte |= SLI4_ELS_REQUEST64_CMD_FABRIC;
else
els->cmdtype_elsid_byte |= SLI4_ELS_REQUEST64_CMD_NON_FABRIC;
els->cq_id = cpu_to_le16(SLI4_CQ_DEFAULT);
if (((els->ct_byte & SLI4_REQ_WQE_CT) >> SLI4_REQ_WQE_CT_SHFT) !=
SLI4_GENERIC_CONTEXT_RPI)
els->remote_id_dword = cpu_to_le32(params->d_id);
if (((els->ct_byte & SLI4_REQ_WQE_CT) >> SLI4_REQ_WQE_CT_SHFT) ==
SLI4_GENERIC_CONTEXT_VPI)
els->temporary_rpi = cpu_to_le16(params->rpi);
return 0;
}
int
sli_fcp_icmnd64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl, u16 xri,
u16 tag, u16 cq_id, u32 rpi, u32 rnode_fcid, u8 timeout)
{
struct sli4_fcp_icmnd64_wqe *icmnd = buf;
struct sli4_sge *sge = NULL;
struct sli4_bde *bptr;
u32 len;
memset(buf, 0, sli->wqe_size);
if (!sgl || !sgl->virt) {
efc_log_err(sli, "bad parameter sgl=%p virt=%p\n",
sgl, sgl ? sgl->virt : NULL);
return -EIO;
}
sge = sgl->virt;
bptr = &icmnd->bde;
if (sli->params.sgl_pre_registered) {
icmnd->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_ICMD_WQE_XBL;
icmnd->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_ICMD_WQE_DBDE;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[0].buffer_length) &
SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[0].buffer_address_low;
bptr->u.data.high = sge[0].buffer_address_high;
} else {
icmnd->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_ICMD_WQE_XBL;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) |
(sgl->size & SLI4_BDE_LEN_MASK));
bptr->u.blp.low = cpu_to_le32(lower_32_bits(sgl->phys));
bptr->u.blp.high = cpu_to_le32(upper_32_bits(sgl->phys));
}
len = le32_to_cpu(sge[0].buffer_length) +
le32_to_cpu(sge[1].buffer_length);
icmnd->payload_offset_length = cpu_to_le16(len);
icmnd->xri_tag = cpu_to_le16(xri);
icmnd->context_tag = cpu_to_le16(rpi);
icmnd->timer = timeout;
/* WQE word 4 contains read transfer length */
icmnd->class_pu_byte |= 2 << SLI4_ICMD_WQE_PU_SHFT;
icmnd->class_pu_byte |= SLI4_GENERIC_CLASS_CLASS_3;
icmnd->command = SLI4_WQE_FCP_ICMND64;
icmnd->dif_ct_bs_byte |=
SLI4_GENERIC_CONTEXT_RPI << SLI4_ICMD_WQE_CT_SHFT;
icmnd->abort_tag = cpu_to_le32(xri);
icmnd->request_tag = cpu_to_le16(tag);
icmnd->len_loc1_byte |= SLI4_ICMD_WQE_LEN_LOC_BIT1;
icmnd->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_ICMD_WQE_LEN_LOC_BIT2;
icmnd->cmd_type_byte |= SLI4_CMD_FCP_ICMND64_WQE;
icmnd->cq_id = cpu_to_le16(cq_id);
return 0;
}
int
sli_fcp_iread64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl,
u32 first_data_sge, u32 xfer_len, u16 xri, u16 tag,
u16 cq_id, u32 rpi, u32 rnode_fcid,
u8 dif, u8 bs, u8 timeout)
{
struct sli4_fcp_iread64_wqe *iread = buf;
struct sli4_sge *sge = NULL;
struct sli4_bde *bptr;
u32 sge_flags, len;
memset(buf, 0, sli->wqe_size);
if (!sgl || !sgl->virt) {
efc_log_err(sli, "bad parameter sgl=%p virt=%p\n",
sgl, sgl ? sgl->virt : NULL);
return -EIO;
}
sge = sgl->virt;
bptr = &iread->bde;
if (sli->params.sgl_pre_registered) {
iread->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_IR_WQE_XBL;
iread->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IR_WQE_DBDE;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[0].buffer_length) &
SLI4_BDE_LEN_MASK));
bptr->u.blp.low = sge[0].buffer_address_low;
bptr->u.blp.high = sge[0].buffer_address_high;
} else {
iread->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IR_WQE_XBL;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) |
(sgl->size & SLI4_BDE_LEN_MASK));
bptr->u.blp.low =
cpu_to_le32(lower_32_bits(sgl->phys));
bptr->u.blp.high =
cpu_to_le32(upper_32_bits(sgl->phys));
/*
* fill out fcp_cmnd buffer len and change resp buffer to be of
* type "skip" (note: response will still be written to sge[1]
* if necessary)
*/
len = le32_to_cpu(sge[0].buffer_length);
iread->fcp_cmd_buffer_length = cpu_to_le16(len);
sge_flags = le32_to_cpu(sge[1].dw2_flags);
sge_flags &= (~SLI4_SGE_TYPE_MASK);
sge_flags |= (SLI4_SGE_TYPE_SKIP << SLI4_SGE_TYPE_SHIFT);
sge[1].dw2_flags = cpu_to_le32(sge_flags);
}
len = le32_to_cpu(sge[0].buffer_length) +
le32_to_cpu(sge[1].buffer_length);
iread->payload_offset_length = cpu_to_le16(len);
iread->total_transfer_length = cpu_to_le32(xfer_len);
iread->xri_tag = cpu_to_le16(xri);
iread->context_tag = cpu_to_le16(rpi);
iread->timer = timeout;
/* WQE word 4 contains read transfer length */
iread->class_pu_byte |= 2 << SLI4_IR_WQE_PU_SHFT;
iread->class_pu_byte |= SLI4_GENERIC_CLASS_CLASS_3;
iread->command = SLI4_WQE_FCP_IREAD64;
iread->dif_ct_bs_byte |=
SLI4_GENERIC_CONTEXT_RPI << SLI4_IR_WQE_CT_SHFT;
iread->dif_ct_bs_byte |= dif;
iread->dif_ct_bs_byte |= bs << SLI4_IR_WQE_BS_SHFT;
iread->abort_tag = cpu_to_le32(xri);
iread->request_tag = cpu_to_le16(tag);
iread->len_loc1_byte |= SLI4_IR_WQE_LEN_LOC_BIT1;
iread->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IR_WQE_LEN_LOC_BIT2;
iread->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IR_WQE_IOD;
iread->cmd_type_byte |= SLI4_CMD_FCP_IREAD64_WQE;
iread->cq_id = cpu_to_le16(cq_id);
if (sli->params.perf_hint) {
bptr = &iread->first_data_bde;
bptr->bde_type_buflen = cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[first_data_sge].buffer_length) &
SLI4_BDE_LEN_MASK));
bptr->u.data.low =
sge[first_data_sge].buffer_address_low;
bptr->u.data.high =
sge[first_data_sge].buffer_address_high;
}
return 0;
}
int
sli_fcp_iwrite64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl,
u32 first_data_sge, u32 xfer_len,
u32 first_burst, u16 xri, u16 tag,
u16 cq_id, u32 rpi,
u32 rnode_fcid,
u8 dif, u8 bs, u8 timeout)
{
struct sli4_fcp_iwrite64_wqe *iwrite = buf;
struct sli4_sge *sge = NULL;
struct sli4_bde *bptr;
u32 sge_flags, min, len;
memset(buf, 0, sli->wqe_size);
if (!sgl || !sgl->virt) {
efc_log_err(sli, "bad parameter sgl=%p virt=%p\n",
sgl, sgl ? sgl->virt : NULL);
return -EIO;
}
sge = sgl->virt;
bptr = &iwrite->bde;
if (sli->params.sgl_pre_registered) {
iwrite->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_IWR_WQE_XBL;
iwrite->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IWR_WQE_DBDE;
bptr->bde_type_buflen = cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[0].buffer_length) & SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[0].buffer_address_low;
bptr->u.data.high = sge[0].buffer_address_high;
} else {
iwrite->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IWR_WQE_XBL;
bptr->bde_type_buflen = cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(sgl->size & SLI4_BDE_LEN_MASK));
bptr->u.blp.low = cpu_to_le32(lower_32_bits(sgl->phys));
bptr->u.blp.high = cpu_to_le32(upper_32_bits(sgl->phys));
/*
* fill out fcp_cmnd buffer len and change resp buffer to be of
* type "skip" (note: response will still be written to sge[1]
* if necessary)
*/
len = le32_to_cpu(sge[0].buffer_length);
iwrite->fcp_cmd_buffer_length = cpu_to_le16(len);
sge_flags = le32_to_cpu(sge[1].dw2_flags);
sge_flags &= ~SLI4_SGE_TYPE_MASK;
sge_flags |= (SLI4_SGE_TYPE_SKIP << SLI4_SGE_TYPE_SHIFT);
sge[1].dw2_flags = cpu_to_le32(sge_flags);
}
len = le32_to_cpu(sge[0].buffer_length) +
le32_to_cpu(sge[1].buffer_length);
iwrite->payload_offset_length = cpu_to_le16(len);
iwrite->total_transfer_length = cpu_to_le16(xfer_len);
min = (xfer_len < first_burst) ? xfer_len : first_burst;
iwrite->initial_transfer_length = cpu_to_le16(min);
iwrite->xri_tag = cpu_to_le16(xri);
iwrite->context_tag = cpu_to_le16(rpi);
iwrite->timer = timeout;
/* WQE word 4 contains read transfer length */
iwrite->class_pu_byte |= 2 << SLI4_IWR_WQE_PU_SHFT;
iwrite->class_pu_byte |= SLI4_GENERIC_CLASS_CLASS_3;
iwrite->command = SLI4_WQE_FCP_IWRITE64;
iwrite->dif_ct_bs_byte |=
SLI4_GENERIC_CONTEXT_RPI << SLI4_IWR_WQE_CT_SHFT;
iwrite->dif_ct_bs_byte |= dif;
iwrite->dif_ct_bs_byte |= bs << SLI4_IWR_WQE_BS_SHFT;
iwrite->abort_tag = cpu_to_le32(xri);
iwrite->request_tag = cpu_to_le16(tag);
iwrite->len_loc1_byte |= SLI4_IWR_WQE_LEN_LOC_BIT1;
iwrite->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IWR_WQE_LEN_LOC_BIT2;
iwrite->cmd_type_byte |= SLI4_CMD_FCP_IWRITE64_WQE;
iwrite->cq_id = cpu_to_le16(cq_id);
if (sli->params.perf_hint) {
bptr = &iwrite->first_data_bde;
bptr->bde_type_buflen = cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[first_data_sge].buffer_length) &
SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[first_data_sge].buffer_address_low;
bptr->u.data.high = sge[first_data_sge].buffer_address_high;
}
return 0;
}
int
sli_fcp_treceive64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl,
u32 first_data_sge, u16 cq_id, u8 dif, u8 bs,
struct sli_fcp_tgt_params *params)
{
struct sli4_fcp_treceive64_wqe *trecv = buf;
struct sli4_fcp_128byte_wqe *trecv_128 = buf;
struct sli4_sge *sge = NULL;
struct sli4_bde *bptr;
memset(buf, 0, sli->wqe_size);
if (!sgl || !sgl->virt) {
efc_log_err(sli, "bad parameter sgl=%p virt=%p\n",
sgl, sgl ? sgl->virt : NULL);
return -EIO;
}
sge = sgl->virt;
bptr = &trecv->bde;
if (sli->params.sgl_pre_registered) {
trecv->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_TRCV_WQE_XBL;
trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_DBDE;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[0].buffer_length)
& SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[0].buffer_address_low;
bptr->u.data.high = sge[0].buffer_address_high;
trecv->payload_offset_length = sge[0].buffer_length;
} else {
trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_XBL;
/* if data is a single physical address, use a BDE */
if (!dif &&
params->xmit_len <= le32_to_cpu(sge[2].buffer_length)) {
trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_DBDE;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[2].buffer_length)
& SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[2].buffer_address_low;
bptr->u.data.high = sge[2].buffer_address_high;
} else {
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) |
(sgl->size & SLI4_BDE_LEN_MASK));
bptr->u.blp.low = cpu_to_le32(lower_32_bits(sgl->phys));
bptr->u.blp.high =
cpu_to_le32(upper_32_bits(sgl->phys));
}
}
trecv->relative_offset = cpu_to_le32(params->offset);
if (params->flags & SLI4_IO_CONTINUATION)
trecv->eat_xc_ccpe |= SLI4_TRCV_WQE_XC;
trecv->xri_tag = cpu_to_le16(params->xri);
trecv->context_tag = cpu_to_le16(params->rpi);
/* WQE uses relative offset */
trecv->class_ar_pu_byte |= 1 << SLI4_TRCV_WQE_PU_SHFT;
if (params->flags & SLI4_IO_AUTO_GOOD_RESPONSE)
trecv->class_ar_pu_byte |= SLI4_TRCV_WQE_AR;
trecv->command = SLI4_WQE_FCP_TRECEIVE64;
trecv->class_ar_pu_byte |= SLI4_GENERIC_CLASS_CLASS_3;
trecv->dif_ct_bs_byte |=
SLI4_GENERIC_CONTEXT_RPI << SLI4_TRCV_WQE_CT_SHFT;
trecv->dif_ct_bs_byte |= bs << SLI4_TRCV_WQE_BS_SHFT;
trecv->remote_xid = cpu_to_le16(params->ox_id);
trecv->request_tag = cpu_to_le16(params->tag);
trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_IOD;
trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_LEN_LOC_BIT2;
trecv->cmd_type_byte |= SLI4_CMD_FCP_TRECEIVE64_WQE;
trecv->cq_id = cpu_to_le16(cq_id);
trecv->fcp_data_receive_length = cpu_to_le32(params->xmit_len);
if (sli->params.perf_hint) {
bptr = &trecv->first_data_bde;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[first_data_sge].buffer_length) &
SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[first_data_sge].buffer_address_low;
bptr->u.data.high = sge[first_data_sge].buffer_address_high;
}
/* The upper 7 bits of csctl is the priority */
if (params->cs_ctl & SLI4_MASK_CCP) {
trecv->eat_xc_ccpe |= SLI4_TRCV_WQE_CCPE;
trecv->ccp = (params->cs_ctl & SLI4_MASK_CCP);
}
if (params->app_id && sli->wqe_size == SLI4_WQE_EXT_BYTES &&
!(trecv->eat_xc_ccpe & SLI4_TRSP_WQE_EAT)) {
trecv->lloc1_appid |= SLI4_TRCV_WQE_APPID;
trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_WQES;
trecv_128->dw[31] = params->app_id;
}
return 0;
}
int
sli_fcp_cont_treceive64_wqe(struct sli4 *sli, void *buf,
struct efc_dma *sgl, u32 first_data_sge,
u16 sec_xri, u16 cq_id, u8 dif, u8 bs,
struct sli_fcp_tgt_params *params)
{
int rc;
rc = sli_fcp_treceive64_wqe(sli, buf, sgl, first_data_sge,
cq_id, dif, bs, params);
if (!rc) {
struct sli4_fcp_treceive64_wqe *trecv = buf;
trecv->command = SLI4_WQE_FCP_CONT_TRECEIVE64;
trecv->dword5.sec_xri_tag = cpu_to_le16(sec_xri);
}
return rc;
}
int
sli_fcp_trsp64_wqe(struct sli4 *sli4, void *buf, struct efc_dma *sgl,
u16 cq_id, u8 port_owned, struct sli_fcp_tgt_params *params)
{
struct sli4_fcp_trsp64_wqe *trsp = buf;
struct sli4_fcp_128byte_wqe *trsp_128 = buf;
memset(buf, 0, sli4->wqe_size);
if (params->flags & SLI4_IO_AUTO_GOOD_RESPONSE) {
trsp->class_ag_byte |= SLI4_TRSP_WQE_AG;
} else {
struct sli4_sge *sge = sgl->virt;
struct sli4_bde *bptr;
if (sli4->params.sgl_pre_registered || port_owned)
trsp->qosd_xbl_hlm_dbde_wqes |= SLI4_TRSP_WQE_DBDE;
else
trsp->qosd_xbl_hlm_dbde_wqes |= SLI4_TRSP_WQE_XBL;
bptr = &trsp->bde;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[0].buffer_length) &
SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[0].buffer_address_low;
bptr->u.data.high = sge[0].buffer_address_high;
trsp->fcp_response_length = cpu_to_le32(params->xmit_len);
}
if (params->flags & SLI4_IO_CONTINUATION)
trsp->eat_xc_ccpe |= SLI4_TRSP_WQE_XC;
trsp->xri_tag = cpu_to_le16(params->xri);
trsp->rpi = cpu_to_le16(params->rpi);
trsp->command = SLI4_WQE_FCP_TRSP64;
trsp->class_ag_byte |= SLI4_GENERIC_CLASS_CLASS_3;
trsp->remote_xid = cpu_to_le16(params->ox_id);
trsp->request_tag = cpu_to_le16(params->tag);
if (params->flags & SLI4_IO_DNRX)
trsp->ct_dnrx_byte |= SLI4_TRSP_WQE_DNRX;
else
trsp->ct_dnrx_byte &= ~SLI4_TRSP_WQE_DNRX;
trsp->lloc1_appid |= 0x1;
trsp->cq_id = cpu_to_le16(cq_id);
trsp->cmd_type_byte = SLI4_CMD_FCP_TRSP64_WQE;
/* The upper 7 bits of csctl is the priority */
if (params->cs_ctl & SLI4_MASK_CCP) {
trsp->eat_xc_ccpe |= SLI4_TRSP_WQE_CCPE;
trsp->ccp = (params->cs_ctl & SLI4_MASK_CCP);
}
if (params->app_id && sli4->wqe_size == SLI4_WQE_EXT_BYTES &&
!(trsp->eat_xc_ccpe & SLI4_TRSP_WQE_EAT)) {
trsp->lloc1_appid |= SLI4_TRSP_WQE_APPID;
trsp->qosd_xbl_hlm_dbde_wqes |= SLI4_TRSP_WQE_WQES;
trsp_128->dw[31] = params->app_id;
}
return 0;
}
int
sli_fcp_tsend64_wqe(struct sli4 *sli4, void *buf, struct efc_dma *sgl,
u32 first_data_sge, u16 cq_id, u8 dif, u8 bs,
struct sli_fcp_tgt_params *params)
{
struct sli4_fcp_tsend64_wqe *tsend = buf;
struct sli4_fcp_128byte_wqe *tsend_128 = buf;
struct sli4_sge *sge = NULL;
struct sli4_bde *bptr;
memset(buf, 0, sli4->wqe_size);
if (!sgl || !sgl->virt) {
efc_log_err(sli4, "bad parameter sgl=%p virt=%p\n",
sgl, sgl ? sgl->virt : NULL);
return -EIO;
}
sge = sgl->virt;
bptr = &tsend->bde;
if (sli4->params.sgl_pre_registered) {
tsend->ll_qd_xbl_hlm_iod_dbde &= ~SLI4_TSEND_WQE_XBL;
tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_WQE_DBDE;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[2].buffer_length) &
SLI4_BDE_LEN_MASK));
/* TSEND64_WQE specifies first two SGE are skipped (3rd is
* valid)
*/
bptr->u.data.low = sge[2].buffer_address_low;
bptr->u.data.high = sge[2].buffer_address_high;
} else {
tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_WQE_XBL;
/* if data is a single physical address, use a BDE */
if (!dif &&
params->xmit_len <= le32_to_cpu(sge[2].buffer_length)) {
tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_WQE_DBDE;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[2].buffer_length) &
SLI4_BDE_LEN_MASK));
/*
* TSEND64_WQE specifies first two SGE are skipped
* (i.e. 3rd is valid)
*/
bptr->u.data.low =
sge[2].buffer_address_low;
bptr->u.data.high =
sge[2].buffer_address_high;
} else {
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) |
(sgl->size &
SLI4_BDE_LEN_MASK));
bptr->u.blp.low =
cpu_to_le32(lower_32_bits(sgl->phys));
bptr->u.blp.high =
cpu_to_le32(upper_32_bits(sgl->phys));
}
}
tsend->relative_offset = cpu_to_le32(params->offset);
if (params->flags & SLI4_IO_CONTINUATION)
tsend->dw10byte2 |= SLI4_TSEND_XC;
tsend->xri_tag = cpu_to_le16(params->xri);
tsend->rpi = cpu_to_le16(params->rpi);
/* WQE uses relative offset */
tsend->class_pu_ar_byte |= 1 << SLI4_TSEND_WQE_PU_SHFT;
if (params->flags & SLI4_IO_AUTO_GOOD_RESPONSE)
tsend->class_pu_ar_byte |= SLI4_TSEND_WQE_AR;
tsend->command = SLI4_WQE_FCP_TSEND64;
tsend->class_pu_ar_byte |= SLI4_GENERIC_CLASS_CLASS_3;
tsend->ct_byte |= SLI4_GENERIC_CONTEXT_RPI << SLI4_TSEND_CT_SHFT;
tsend->ct_byte |= dif;
tsend->ct_byte |= bs << SLI4_TSEND_BS_SHFT;
tsend->remote_xid = cpu_to_le16(params->ox_id);
tsend->request_tag = cpu_to_le16(params->tag);
tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_LEN_LOC_BIT2;
tsend->cq_id = cpu_to_le16(cq_id);
tsend->cmd_type_byte |= SLI4_CMD_FCP_TSEND64_WQE;
tsend->fcp_data_transmit_length = cpu_to_le32(params->xmit_len);
if (sli4->params.perf_hint) {
bptr = &tsend->first_data_bde;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(le32_to_cpu(sge[first_data_sge].buffer_length) &
SLI4_BDE_LEN_MASK));
bptr->u.data.low =
sge[first_data_sge].buffer_address_low;
bptr->u.data.high =
sge[first_data_sge].buffer_address_high;
}
/* The upper 7 bits of csctl is the priority */
if (params->cs_ctl & SLI4_MASK_CCP) {
tsend->dw10byte2 |= SLI4_TSEND_CCPE;
tsend->ccp = (params->cs_ctl & SLI4_MASK_CCP);
}
if (params->app_id && sli4->wqe_size == SLI4_WQE_EXT_BYTES &&
!(tsend->dw10byte2 & SLI4_TSEND_EAT)) {
tsend->dw10byte0 |= SLI4_TSEND_APPID_VALID;
tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_WQES;
tsend_128->dw[31] = params->app_id;
}
return 0;
}
int
sli_gen_request64_wqe(struct sli4 *sli4, void *buf, struct efc_dma *sgl,
struct sli_ct_params *params)
{
struct sli4_gen_request64_wqe *gen = buf;
struct sli4_sge *sge = NULL;
struct sli4_bde *bptr;
memset(buf, 0, sli4->wqe_size);
if (!sgl || !sgl->virt) {
efc_log_err(sli4, "bad parameter sgl=%p virt=%p\n",
sgl, sgl ? sgl->virt : NULL);
return -EIO;
}
sge = sgl->virt;
bptr = &gen->bde;
if (sli4->params.sgl_pre_registered) {
gen->dw10flags1 &= ~SLI4_GEN_REQ64_WQE_XBL;
gen->dw10flags1 |= SLI4_GEN_REQ64_WQE_DBDE;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(params->xmit_len & SLI4_BDE_LEN_MASK));
bptr->u.data.low = sge[0].buffer_address_low;
bptr->u.data.high = sge[0].buffer_address_high;
} else {
gen->dw10flags1 |= SLI4_GEN_REQ64_WQE_XBL;
bptr->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) |
((2 * sizeof(struct sli4_sge)) &
SLI4_BDE_LEN_MASK));
bptr->u.blp.low =
cpu_to_le32(lower_32_bits(sgl->phys));
bptr->u.blp.high =
cpu_to_le32(upper_32_bits(sgl->phys));
}
gen->request_payload_length = cpu_to_le32(params->xmit_len);
gen->max_response_payload_length = cpu_to_le32(params->rsp_len);
gen->df_ctl = params->df_ctl;
gen->type = params->type;
gen->r_ctl = params->r_ctl;
gen->xri_tag = cpu_to_le16(params->xri);
gen->ct_byte = SLI4_GENERIC_CONTEXT_RPI << SLI4_GEN_REQ64_CT_SHFT;
gen->context_tag = cpu_to_le16(params->rpi);
gen->class_byte = SLI4_GENERIC_CLASS_CLASS_3;
gen->command = SLI4_WQE_GEN_REQUEST64;
gen->timer = params->timeout;
gen->request_tag = cpu_to_le16(params->tag);
gen->dw10flags1 |= SLI4_GEN_REQ64_WQE_IOD;
gen->dw10flags0 |= SLI4_GEN_REQ64_WQE_QOSD;
gen->cmd_type_byte = SLI4_CMD_GEN_REQUEST64_WQE;
gen->cq_id = cpu_to_le16(SLI4_CQ_DEFAULT);
return 0;
}
int
sli_send_frame_wqe(struct sli4 *sli, void *buf, u8 sof, u8 eof, u32 *hdr,
struct efc_dma *payload, u32 req_len, u8 timeout, u16 xri,
u16 req_tag)
{
struct sli4_send_frame_wqe *sf = buf;
memset(buf, 0, sli->wqe_size);
sf->dw10flags1 |= SLI4_SF_WQE_DBDE;
sf->bde.bde_type_buflen = cpu_to_le32(req_len &
SLI4_BDE_LEN_MASK);
sf->bde.u.data.low = cpu_to_le32(lower_32_bits(payload->phys));
sf->bde.u.data.high = cpu_to_le32(upper_32_bits(payload->phys));
/* Copy FC header */
sf->fc_header_0_1[0] = cpu_to_le32(hdr[0]);
sf->fc_header_0_1[1] = cpu_to_le32(hdr[1]);
sf->fc_header_2_5[0] = cpu_to_le32(hdr[2]);
sf->fc_header_2_5[1] = cpu_to_le32(hdr[3]);
sf->fc_header_2_5[2] = cpu_to_le32(hdr[4]);
sf->fc_header_2_5[3] = cpu_to_le32(hdr[5]);
sf->frame_length = cpu_to_le32(req_len);
sf->xri_tag = cpu_to_le16(xri);
sf->dw7flags0 &= ~SLI4_SF_PU;
sf->context_tag = 0;
sf->ct_byte &= ~SLI4_SF_CT;
sf->command = SLI4_WQE_SEND_FRAME;
sf->dw7flags0 |= SLI4_GENERIC_CLASS_CLASS_3;
sf->timer = timeout;
sf->request_tag = cpu_to_le16(req_tag);
sf->eof = eof;
sf->sof = sof;
sf->dw10flags1 &= ~SLI4_SF_QOSD;
sf->dw10flags0 |= SLI4_SF_LEN_LOC_BIT1;
sf->dw10flags2 &= ~SLI4_SF_XC;
sf->dw10flags1 |= SLI4_SF_XBL;
sf->cmd_type_byte |= SLI4_CMD_SEND_FRAME_WQE;
sf->cq_id = cpu_to_le16(0xffff);
return 0;
}
int
sli_xmit_bls_rsp64_wqe(struct sli4 *sli, void *buf,
struct sli_bls_payload *payload,
struct sli_bls_params *params)
{
struct sli4_xmit_bls_rsp_wqe *bls = buf;
u32 dw_ridflags = 0;
/*
* Callers can either specify RPI or S_ID, but not both
*/
if (params->rpi_registered && params->s_id != U32_MAX) {
efc_log_info(sli, "S_ID specified for attached remote node %d\n",
params->rpi);
return -EIO;
}
memset(buf, 0, sli->wqe_size);
if (payload->type == SLI4_SLI_BLS_ACC) {
bls->payload_word0 =
cpu_to_le32((payload->u.acc.seq_id_last << 16) |
(payload->u.acc.seq_id_validity << 24));
bls->high_seq_cnt = payload->u.acc.high_seq_cnt;
bls->low_seq_cnt = payload->u.acc.low_seq_cnt;
} else if (payload->type == SLI4_SLI_BLS_RJT) {
bls->payload_word0 =
cpu_to_le32(*((u32 *)&payload->u.rjt));
dw_ridflags |= SLI4_BLS_RSP_WQE_AR;
} else {
efc_log_info(sli, "bad BLS type %#x\n", payload->type);
return -EIO;
}
bls->ox_id = payload->ox_id;
bls->rx_id = payload->rx_id;
if (params->rpi_registered) {
bls->dw8flags0 |=
SLI4_GENERIC_CONTEXT_RPI << SLI4_BLS_RSP_WQE_CT_SHFT;
bls->context_tag = cpu_to_le16(params->rpi);
} else {
bls->dw8flags0 |=
SLI4_GENERIC_CONTEXT_VPI << SLI4_BLS_RSP_WQE_CT_SHFT;
bls->context_tag = cpu_to_le16(params->vpi);
bls->local_n_port_id_dword |=
cpu_to_le32(params->s_id & 0x00ffffff);
dw_ridflags = (dw_ridflags & ~SLI4_BLS_RSP_RID) |
(params->d_id & SLI4_BLS_RSP_RID);
bls->temporary_rpi = cpu_to_le16(params->rpi);
}
bls->xri_tag = cpu_to_le16(params->xri);
bls->dw8flags1 |= SLI4_GENERIC_CLASS_CLASS_3;
bls->command = SLI4_WQE_XMIT_BLS_RSP;
bls->request_tag = cpu_to_le16(params->tag);
bls->dw11flags1 |= SLI4_BLS_RSP_WQE_QOSD;
bls->remote_id_dword = cpu_to_le32(dw_ridflags);
bls->cq_id = cpu_to_le16(SLI4_CQ_DEFAULT);
bls->dw12flags0 |= SLI4_CMD_XMIT_BLS_RSP64_WQE;
return 0;
}
int
sli_xmit_els_rsp64_wqe(struct sli4 *sli, void *buf, struct efc_dma *rsp,
struct sli_els_params *params)
{
struct sli4_xmit_els_rsp64_wqe *els = buf;
memset(buf, 0, sli->wqe_size);
if (sli->params.sgl_pre_registered)
els->flags2 |= SLI4_ELS_DBDE;
else
els->flags2 |= SLI4_ELS_XBL;
els->els_response_payload.bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(params->rsp_len & SLI4_BDE_LEN_MASK));
els->els_response_payload.u.data.low =
cpu_to_le32(lower_32_bits(rsp->phys));
els->els_response_payload.u.data.high =
cpu_to_le32(upper_32_bits(rsp->phys));
els->els_response_payload_length = cpu_to_le32(params->rsp_len);
els->xri_tag = cpu_to_le16(params->xri);
els->class_byte |= SLI4_GENERIC_CLASS_CLASS_3;
els->command = SLI4_WQE_ELS_RSP64;
els->request_tag = cpu_to_le16(params->tag);
els->ox_id = cpu_to_le16(params->ox_id);
els->flags2 |= SLI4_ELS_QOSD;
els->cmd_type_wqec = SLI4_ELS_REQUEST64_CMD_GEN;
els->cq_id = cpu_to_le16(SLI4_CQ_DEFAULT);
if (params->rpi_registered) {
els->ct_byte |=
SLI4_GENERIC_CONTEXT_RPI << SLI4_ELS_CT_OFFSET;
els->context_tag = cpu_to_le16(params->rpi);
return 0;
}
els->ct_byte |= SLI4_GENERIC_CONTEXT_VPI << SLI4_ELS_CT_OFFSET;
els->context_tag = cpu_to_le16(params->vpi);
els->rid_dw = cpu_to_le32(params->d_id & SLI4_ELS_RID);
els->temporary_rpi = cpu_to_le16(params->rpi);
if (params->s_id != U32_MAX) {
els->sid_dw |=
cpu_to_le32(SLI4_ELS_SP | (params->s_id & SLI4_ELS_SID));
}
return 0;
}
int
sli_xmit_sequence64_wqe(struct sli4 *sli4, void *buf, struct efc_dma *payload,
struct sli_ct_params *params)
{
struct sli4_xmit_sequence64_wqe *xmit = buf;
memset(buf, 0, sli4->wqe_size);
if (!payload || !payload->virt) {
efc_log_err(sli4, "bad parameter sgl=%p virt=%p\n",
payload, payload ? payload->virt : NULL);
return -EIO;
}
if (sli4->params.sgl_pre_registered)
xmit->dw10w0 |= cpu_to_le16(SLI4_SEQ_WQE_DBDE);
else
xmit->dw10w0 |= cpu_to_le16(SLI4_SEQ_WQE_XBL);
xmit->bde.bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(params->rsp_len & SLI4_BDE_LEN_MASK));
xmit->bde.u.data.low =
cpu_to_le32(lower_32_bits(payload->phys));
xmit->bde.u.data.high =
cpu_to_le32(upper_32_bits(payload->phys));
xmit->sequence_payload_len = cpu_to_le32(params->rsp_len);
xmit->remote_n_port_id_dword |= cpu_to_le32(params->d_id & 0x00ffffff);
xmit->relative_offset = 0;
/* sequence initiative - this matches what is seen from
* FC switches in response to FCGS commands
*/
xmit->dw5flags0 &= (~SLI4_SEQ_WQE_SI);
xmit->dw5flags0 &= (~SLI4_SEQ_WQE_FT);/* force transmit */
xmit->dw5flags0 &= (~SLI4_SEQ_WQE_XO);/* exchange responder */
xmit->dw5flags0 |= SLI4_SEQ_WQE_LS;/* last in seqence */
xmit->df_ctl = params->df_ctl;
xmit->type = params->type;
xmit->r_ctl = params->r_ctl;
xmit->xri_tag = cpu_to_le16(params->xri);
xmit->context_tag = cpu_to_le16(params->rpi);
xmit->dw7flags0 &= ~SLI4_SEQ_WQE_DIF;
xmit->dw7flags0 |=
SLI4_GENERIC_CONTEXT_RPI << SLI4_SEQ_WQE_CT_SHIFT;
xmit->dw7flags0 &= ~SLI4_SEQ_WQE_BS;
xmit->command = SLI4_WQE_XMIT_SEQUENCE64;
xmit->dw7flags1 |= SLI4_GENERIC_CLASS_CLASS_3;
xmit->dw7flags1 &= ~SLI4_SEQ_WQE_PU;
xmit->timer = params->timeout;
xmit->abort_tag = 0;
xmit->request_tag = cpu_to_le16(params->tag);
xmit->remote_xid = cpu_to_le16(params->ox_id);
xmit->dw10w0 |=
cpu_to_le16(SLI4_ELS_REQUEST64_DIR_READ << SLI4_SEQ_WQE_IOD_SHIFT);
xmit->cmd_type_wqec_byte |= SLI4_CMD_XMIT_SEQUENCE64_WQE;
xmit->dw10w0 |= cpu_to_le16(2 << SLI4_SEQ_WQE_LEN_LOC_SHIFT);
xmit->cq_id = cpu_to_le16(0xFFFF);
return 0;
}
int
sli_requeue_xri_wqe(struct sli4 *sli4, void *buf, u16 xri, u16 tag, u16 cq_id)
{
struct sli4_requeue_xri_wqe *requeue = buf;
memset(buf, 0, sli4->wqe_size);
requeue->command = SLI4_WQE_REQUEUE_XRI;
requeue->xri_tag = cpu_to_le16(xri);
requeue->request_tag = cpu_to_le16(tag);
requeue->flags2 |= cpu_to_le16(SLI4_REQU_XRI_WQE_XC);
requeue->flags1 |= cpu_to_le16(SLI4_REQU_XRI_WQE_QOSD);
requeue->cq_id = cpu_to_le16(cq_id);
requeue->cmd_type_wqec_byte = SLI4_CMD_REQUEUE_XRI_WQE;
return 0;
}
int
sli_fc_process_link_attention(struct sli4 *sli4, void *acqe)
{
struct sli4_link_attention *link_attn = acqe;
struct sli4_link_event event = { 0 };
efc_log_info(sli4, "link=%d attn_type=%#x top=%#x speed=%#x pfault=%#x\n",
link_attn->link_number, link_attn->attn_type,
link_attn->topology, link_attn->port_speed,
link_attn->port_fault);
efc_log_info(sli4, "shared_lnk_status=%#x logl_lnk_speed=%#x evttag=%#x\n",
link_attn->shared_link_status,
le16_to_cpu(link_attn->logical_link_speed),
le32_to_cpu(link_attn->event_tag));
if (!sli4->link)
return -EIO;
event.medium = SLI4_LINK_MEDIUM_FC;
switch (link_attn->attn_type) {
case SLI4_LNK_ATTN_TYPE_LINK_UP:
event.status = SLI4_LINK_STATUS_UP;
break;
case SLI4_LNK_ATTN_TYPE_LINK_DOWN:
event.status = SLI4_LINK_STATUS_DOWN;
break;
case SLI4_LNK_ATTN_TYPE_NO_HARD_ALPA:
efc_log_info(sli4, "attn_type: no hard alpa\n");
event.status = SLI4_LINK_STATUS_NO_ALPA;
break;
default:
efc_log_info(sli4, "attn_type: unknown\n");
break;
}
switch (link_attn->event_type) {
case SLI4_EVENT_LINK_ATTENTION:
break;
case SLI4_EVENT_SHARED_LINK_ATTENTION:
efc_log_info(sli4, "event_type: FC shared link event\n");
break;
default:
efc_log_info(sli4, "event_type: unknown\n");
break;
}
switch (link_attn->topology) {
case SLI4_LNK_ATTN_P2P:
event.topology = SLI4_LINK_TOPO_NON_FC_AL;
break;
case SLI4_LNK_ATTN_FC_AL:
event.topology = SLI4_LINK_TOPO_FC_AL;
break;
case SLI4_LNK_ATTN_INTERNAL_LOOPBACK:
efc_log_info(sli4, "topology Internal loopback\n");
event.topology = SLI4_LINK_TOPO_LOOPBACK_INTERNAL;
break;
case SLI4_LNK_ATTN_SERDES_LOOPBACK:
efc_log_info(sli4, "topology serdes loopback\n");
event.topology = SLI4_LINK_TOPO_LOOPBACK_EXTERNAL;
break;
default:
efc_log_info(sli4, "topology: unknown\n");
break;
}
event.speed = link_attn->port_speed * 1000;
sli4->link(sli4->link_arg, (void *)&event);
return 0;
}
int
sli_fc_cqe_parse(struct sli4 *sli4, struct sli4_queue *cq,
u8 *cqe, enum sli4_qentry *etype, u16 *r_id)
{
u8 code = cqe[SLI4_CQE_CODE_OFFSET];
int rc;
switch (code) {
case SLI4_CQE_CODE_WORK_REQUEST_COMPLETION:
{
struct sli4_fc_wcqe *wcqe = (void *)cqe;
*etype = SLI4_QENTRY_WQ;
*r_id = le16_to_cpu(wcqe->request_tag);
rc = wcqe->status;
/* Flag errors except for FCP_RSP_FAILURE */
if (rc && rc != SLI4_FC_WCQE_STATUS_FCP_RSP_FAILURE) {
efc_log_info(sli4, "WCQE: status=%#x hw_status=%#x tag=%#x\n",
wcqe->status, wcqe->hw_status,
le16_to_cpu(wcqe->request_tag));
efc_log_info(sli4, "w1=%#x w2=%#x xb=%d\n",
le32_to_cpu(wcqe->wqe_specific_1),
le32_to_cpu(wcqe->wqe_specific_2),
(wcqe->flags & SLI4_WCQE_XB));
efc_log_info(sli4, " %08X %08X %08X %08X\n",
((u32 *)cqe)[0], ((u32 *)cqe)[1],
((u32 *)cqe)[2], ((u32 *)cqe)[3]);
}
break;
}
case SLI4_CQE_CODE_RQ_ASYNC:
{
struct sli4_fc_async_rcqe *rcqe = (void *)cqe;
*etype = SLI4_QENTRY_RQ;
*r_id = le16_to_cpu(rcqe->fcfi_rq_id_word) & SLI4_RACQE_RQ_ID;
rc = rcqe->status;
break;
}
case SLI4_CQE_CODE_RQ_ASYNC_V1:
{
struct sli4_fc_async_rcqe_v1 *rcqe = (void *)cqe;
*etype = SLI4_QENTRY_RQ;
*r_id = le16_to_cpu(rcqe->rq_id);
rc = rcqe->status;
break;
}
case SLI4_CQE_CODE_OPTIMIZED_WRITE_CMD:
{
struct sli4_fc_optimized_write_cmd_cqe *optcqe = (void *)cqe;
*etype = SLI4_QENTRY_OPT_WRITE_CMD;
*r_id = le16_to_cpu(optcqe->rq_id);
rc = optcqe->status;
break;
}
case SLI4_CQE_CODE_OPTIMIZED_WRITE_DATA:
{
struct sli4_fc_optimized_write_data_cqe *dcqe = (void *)cqe;
*etype = SLI4_QENTRY_OPT_WRITE_DATA;
*r_id = le16_to_cpu(dcqe->xri);
rc = dcqe->status;
/* Flag errors */
if (rc != SLI4_FC_WCQE_STATUS_SUCCESS) {
efc_log_info(sli4, "Optimized DATA CQE: status=%#x\n",
dcqe->status);
efc_log_info(sli4, "hstat=%#x xri=%#x dpl=%#x w3=%#x xb=%d\n",
dcqe->hw_status, le16_to_cpu(dcqe->xri),
le32_to_cpu(dcqe->total_data_placed),
((u32 *)cqe)[3],
(dcqe->flags & SLI4_OCQE_XB));
}
break;
}
case SLI4_CQE_CODE_RQ_COALESCING:
{
struct sli4_fc_coalescing_rcqe *rcqe = (void *)cqe;
*etype = SLI4_QENTRY_RQ;
*r_id = le16_to_cpu(rcqe->rq_id);
rc = rcqe->status;
break;
}
case SLI4_CQE_CODE_XRI_ABORTED:
{
struct sli4_fc_xri_aborted_cqe *xa = (void *)cqe;
*etype = SLI4_QENTRY_XABT;
*r_id = le16_to_cpu(xa->xri);
rc = 0;
break;
}
case SLI4_CQE_CODE_RELEASE_WQE:
{
struct sli4_fc_wqec *wqec = (void *)cqe;
*etype = SLI4_QENTRY_WQ_RELEASE;
*r_id = le16_to_cpu(wqec->wq_id);
rc = 0;
break;
}
default:
efc_log_info(sli4, "CQE completion code %d not handled\n",
code);
*etype = SLI4_QENTRY_MAX;
*r_id = U16_MAX;
rc = -EINVAL;
}
return rc;
}
u32
sli_fc_response_length(struct sli4 *sli4, u8 *cqe)
{
struct sli4_fc_wcqe *wcqe = (void *)cqe;
return le32_to_cpu(wcqe->wqe_specific_1);
}
u32
sli_fc_io_length(struct sli4 *sli4, u8 *cqe)
{
struct sli4_fc_wcqe *wcqe = (void *)cqe;
return le32_to_cpu(wcqe->wqe_specific_1);
}
int
sli_fc_els_did(struct sli4 *sli4, u8 *cqe, u32 *d_id)
{
struct sli4_fc_wcqe *wcqe = (void *)cqe;
*d_id = 0;
if (wcqe->status)
return -EIO;
*d_id = le32_to_cpu(wcqe->wqe_specific_2) & 0x00ffffff;
return 0;
}
u32
sli_fc_ext_status(struct sli4 *sli4, u8 *cqe)
{
struct sli4_fc_wcqe *wcqe = (void *)cqe;
u32 mask;
switch (wcqe->status) {
case SLI4_FC_WCQE_STATUS_FCP_RSP_FAILURE:
mask = U32_MAX;
break;
case SLI4_FC_WCQE_STATUS_LOCAL_REJECT:
case SLI4_FC_WCQE_STATUS_CMD_REJECT:
mask = 0xff;
break;
case SLI4_FC_WCQE_STATUS_NPORT_RJT:
case SLI4_FC_WCQE_STATUS_FABRIC_RJT:
case SLI4_FC_WCQE_STATUS_NPORT_BSY:
case SLI4_FC_WCQE_STATUS_FABRIC_BSY:
case SLI4_FC_WCQE_STATUS_LS_RJT:
mask = U32_MAX;
break;
case SLI4_FC_WCQE_STATUS_DI_ERROR:
mask = U32_MAX;
break;
default:
mask = 0;
}
return le32_to_cpu(wcqe->wqe_specific_2) & mask;
}
int
sli_fc_rqe_rqid_and_index(struct sli4 *sli4, u8 *cqe, u16 *rq_id, u32 *index)
{
int rc = -EIO;
u8 code = 0;
u16 rq_element_index;
*rq_id = 0;
*index = U32_MAX;
code = cqe[SLI4_CQE_CODE_OFFSET];
/* Retrieve the RQ index from the completion */
if (code == SLI4_CQE_CODE_RQ_ASYNC) {
struct sli4_fc_async_rcqe *rcqe = (void *)cqe;
*rq_id = le16_to_cpu(rcqe->fcfi_rq_id_word) & SLI4_RACQE_RQ_ID;
rq_element_index =
le16_to_cpu(rcqe->rq_elmt_indx_word) & SLI4_RACQE_RQ_EL_INDX;
*index = rq_element_index;
if (rcqe->status == SLI4_FC_ASYNC_RQ_SUCCESS) {
rc = 0;
} else {
rc = rcqe->status;
efc_log_info(sli4, "status=%02x (%s) rq_id=%d\n",
rcqe->status,
sli_fc_get_status_string(rcqe->status),
le16_to_cpu(rcqe->fcfi_rq_id_word) &
SLI4_RACQE_RQ_ID);
efc_log_info(sli4, "pdpl=%x sof=%02x eof=%02x hdpl=%x\n",
le16_to_cpu(rcqe->data_placement_length),
rcqe->sof_byte, rcqe->eof_byte,
rcqe->hdpl_byte & SLI4_RACQE_HDPL);
}
} else if (code == SLI4_CQE_CODE_RQ_ASYNC_V1) {
struct sli4_fc_async_rcqe_v1 *rcqe_v1 = (void *)cqe;
*rq_id = le16_to_cpu(rcqe_v1->rq_id);
rq_element_index =
(le16_to_cpu(rcqe_v1->rq_elmt_indx_word) &
SLI4_RACQE_RQ_EL_INDX);
*index = rq_element_index;
if (rcqe_v1->status == SLI4_FC_ASYNC_RQ_SUCCESS) {
rc = 0;
} else {
rc = rcqe_v1->status;
efc_log_info(sli4, "status=%02x (%s) rq_id=%d, index=%x\n",
rcqe_v1->status,
sli_fc_get_status_string(rcqe_v1->status),
le16_to_cpu(rcqe_v1->rq_id), rq_element_index);
efc_log_info(sli4, "pdpl=%x sof=%02x eof=%02x hdpl=%x\n",
le16_to_cpu(rcqe_v1->data_placement_length),
rcqe_v1->sof_byte, rcqe_v1->eof_byte,
rcqe_v1->hdpl_byte & SLI4_RACQE_HDPL);
}
} else if (code == SLI4_CQE_CODE_OPTIMIZED_WRITE_CMD) {
struct sli4_fc_optimized_write_cmd_cqe *optcqe = (void *)cqe;
*rq_id = le16_to_cpu(optcqe->rq_id);
*index = le16_to_cpu(optcqe->w1) & SLI4_OCQE_RQ_EL_INDX;
if (optcqe->status == SLI4_FC_ASYNC_RQ_SUCCESS) {
rc = 0;
} else {
rc = optcqe->status;
efc_log_info(sli4, "stat=%02x (%s) rqid=%d, idx=%x pdpl=%x\n",
optcqe->status,
sli_fc_get_status_string(optcqe->status),
le16_to_cpu(optcqe->rq_id), *index,
le16_to_cpu(optcqe->data_placement_length));
efc_log_info(sli4, "hdpl=%x oox=%d agxr=%d xri=0x%x rpi=%x\n",
(optcqe->hdpl_vld & SLI4_OCQE_HDPL),
(optcqe->flags1 & SLI4_OCQE_OOX),
(optcqe->flags1 & SLI4_OCQE_AGXR),
optcqe->xri, le16_to_cpu(optcqe->rpi));
}
} else if (code == SLI4_CQE_CODE_RQ_COALESCING) {
struct sli4_fc_coalescing_rcqe *rcqe = (void *)cqe;
rq_element_index = (le16_to_cpu(rcqe->rq_elmt_indx_word) &
SLI4_RCQE_RQ_EL_INDX);
*rq_id = le16_to_cpu(rcqe->rq_id);
if (rcqe->status == SLI4_FC_COALESCE_RQ_SUCCESS) {
*index = rq_element_index;
rc = 0;
} else {
*index = U32_MAX;
rc = rcqe->status;
efc_log_info(sli4, "stat=%02x (%s) rq_id=%d, idx=%x\n",
rcqe->status,
sli_fc_get_status_string(rcqe->status),
le16_to_cpu(rcqe->rq_id), rq_element_index);
efc_log_info(sli4, "rq_id=%#x sdpl=%x\n",
le16_to_cpu(rcqe->rq_id),
le16_to_cpu(rcqe->seq_placement_length));
}
} else {
struct sli4_fc_async_rcqe *rcqe = (void *)cqe;
*index = U32_MAX;
rc = rcqe->status;
efc_log_info(sli4, "status=%02x rq_id=%d, index=%x pdpl=%x\n",
rcqe->status,
le16_to_cpu(rcqe->fcfi_rq_id_word) & SLI4_RACQE_RQ_ID,
(le16_to_cpu(rcqe->rq_elmt_indx_word) & SLI4_RACQE_RQ_EL_INDX),
le16_to_cpu(rcqe->data_placement_length));
efc_log_info(sli4, "sof=%02x eof=%02x hdpl=%x\n",
rcqe->sof_byte, rcqe->eof_byte,
rcqe->hdpl_byte & SLI4_RACQE_HDPL);
}
return rc;
}
static int
sli_bmbx_wait(struct sli4 *sli4, u32 msec)
{
u32 val;
unsigned long end;
/* Wait for the bootstrap mailbox to report "ready" */
end = jiffies + msecs_to_jiffies(msec);
do {
val = readl(sli4->reg[0] + SLI4_BMBX_REG);
if (val & SLI4_BMBX_RDY)
return 0;
usleep_range(1000, 2000);
} while (time_before(jiffies, end));
return -EIO;
}
static int
sli_bmbx_write(struct sli4 *sli4)
{
u32 val;
/* write buffer location to bootstrap mailbox register */
val = sli_bmbx_write_hi(sli4->bmbx.phys);
writel(val, (sli4->reg[0] + SLI4_BMBX_REG));
if (sli_bmbx_wait(sli4, SLI4_BMBX_DELAY_US)) {
efc_log_crit(sli4, "BMBX WRITE_HI failed\n");
return -EIO;
}
val = sli_bmbx_write_lo(sli4->bmbx.phys);
writel(val, (sli4->reg[0] + SLI4_BMBX_REG));
/* wait for SLI Port to set ready bit */
return sli_bmbx_wait(sli4, SLI4_BMBX_TIMEOUT_MSEC);
}
int
sli_bmbx_command(struct sli4 *sli4)
{
void *cqe = (u8 *)sli4->bmbx.virt + SLI4_BMBX_SIZE;
if (sli_fw_error_status(sli4) > 0) {
efc_log_crit(sli4, "Chip is in an error state -Mailbox command rejected");
efc_log_crit(sli4, " status=%#x error1=%#x error2=%#x\n",
sli_reg_read_status(sli4),
sli_reg_read_err1(sli4),
sli_reg_read_err2(sli4));
return -EIO;
}
/* Submit a command to the bootstrap mailbox and check the status */
if (sli_bmbx_write(sli4)) {
efc_log_crit(sli4, "bmbx write fail phys=%pad reg=%#x\n",
&sli4->bmbx.phys, readl(sli4->reg[0] + SLI4_BMBX_REG));
return -EIO;
}
/* check completion queue entry status */
if (le32_to_cpu(((struct sli4_mcqe *)cqe)->dw3_flags) &
SLI4_MCQE_VALID) {
return sli_cqe_mq(sli4, cqe);
}
efc_log_crit(sli4, "invalid or wrong type\n");
return -EIO;
}
int
sli_cmd_config_link(struct sli4 *sli4, void *buf)
{
struct sli4_cmd_config_link *config_link = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
config_link->hdr.command = SLI4_MBX_CMD_CONFIG_LINK;
/* Port interprets zero in a field as "use default value" */
return 0;
}
int
sli_cmd_down_link(struct sli4 *sli4, void *buf)
{
struct sli4_mbox_command_header *hdr = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
hdr->command = SLI4_MBX_CMD_DOWN_LINK;
/* Port interprets zero in a field as "use default value" */
return 0;
}
int
sli_cmd_dump_type4(struct sli4 *sli4, void *buf, u16 wki)
{
struct sli4_cmd_dump4 *cmd = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
cmd->hdr.command = SLI4_MBX_CMD_DUMP;
cmd->type_dword = cpu_to_le32(0x4);
cmd->wki_selection = cpu_to_le16(wki);
return 0;
}
int
sli_cmd_common_read_transceiver_data(struct sli4 *sli4, void *buf, u32 page_num,
struct efc_dma *dma)
{
struct sli4_rqst_cmn_read_transceiver_data *req = NULL;
u32 psize;
if (!dma)
psize = SLI4_CFG_PYLD_LENGTH(cmn_read_transceiver_data);
else
psize = dma->size;
req = sli_config_cmd_init(sli4, buf, psize, dma);
if (!req)
return -EIO;
sli_cmd_fill_hdr(&req->hdr, SLI4_CMN_READ_TRANS_DATA,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN(cmn_read_transceiver_data));
req->page_number = cpu_to_le32(page_num);
req->port = cpu_to_le32(sli4->port_number);
return 0;
}
int
sli_cmd_read_link_stats(struct sli4 *sli4, void *buf, u8 req_ext_counters,
u8 clear_overflow_flags,
u8 clear_all_counters)
{
struct sli4_cmd_read_link_stats *cmd = buf;
u32 flags;
memset(buf, 0, SLI4_BMBX_SIZE);
cmd->hdr.command = SLI4_MBX_CMD_READ_LNK_STAT;
flags = 0;
if (req_ext_counters)
flags |= SLI4_READ_LNKSTAT_REC;
if (clear_all_counters)
flags |= SLI4_READ_LNKSTAT_CLRC;
if (clear_overflow_flags)
flags |= SLI4_READ_LNKSTAT_CLOF;
cmd->dw1_flags = cpu_to_le32(flags);
return 0;
}
int
sli_cmd_read_status(struct sli4 *sli4, void *buf, u8 clear_counters)
{
struct sli4_cmd_read_status *cmd = buf;
u32 flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
cmd->hdr.command = SLI4_MBX_CMD_READ_STATUS;
if (clear_counters)
flags |= SLI4_READSTATUS_CLEAR_COUNTERS;
else
flags &= ~SLI4_READSTATUS_CLEAR_COUNTERS;
cmd->dw1_flags = cpu_to_le32(flags);
return 0;
}
int
sli_cmd_init_link(struct sli4 *sli4, void *buf, u32 speed, u8 reset_alpa)
{
struct sli4_cmd_init_link *init_link = buf;
u32 flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
init_link->hdr.command = SLI4_MBX_CMD_INIT_LINK;
init_link->sel_reset_al_pa_dword =
cpu_to_le32(reset_alpa);
flags &= ~SLI4_INIT_LINK_F_LOOPBACK;
init_link->link_speed_sel_code = cpu_to_le32(speed);
switch (speed) {
case SLI4_LINK_SPEED_1G:
case SLI4_LINK_SPEED_2G:
case SLI4_LINK_SPEED_4G:
case SLI4_LINK_SPEED_8G:
case SLI4_LINK_SPEED_16G:
case SLI4_LINK_SPEED_32G:
case SLI4_LINK_SPEED_64G:
flags |= SLI4_INIT_LINK_F_FIXED_SPEED;
break;
case SLI4_LINK_SPEED_10G:
efc_log_info(sli4, "unsupported FC speed %d\n", speed);
init_link->flags0 = cpu_to_le32(flags);
return -EIO;
}
switch (sli4->topology) {
case SLI4_READ_CFG_TOPO_FC:
/* Attempt P2P but failover to FC-AL */
flags |= SLI4_INIT_LINK_F_FAIL_OVER;
flags |= SLI4_INIT_LINK_F_P2P_FAIL_OVER;
break;
case SLI4_READ_CFG_TOPO_FC_AL:
flags |= SLI4_INIT_LINK_F_FCAL_ONLY;
if (speed == SLI4_LINK_SPEED_16G ||
speed == SLI4_LINK_SPEED_32G) {
efc_log_info(sli4, "unsupported FC-AL speed %d\n",
speed);
init_link->flags0 = cpu_to_le32(flags);
return -EIO;
}
break;
case SLI4_READ_CFG_TOPO_NON_FC_AL:
flags |= SLI4_INIT_LINK_F_P2P_ONLY;
break;
default:
efc_log_info(sli4, "unsupported topology %#x\n", sli4->topology);
init_link->flags0 = cpu_to_le32(flags);
return -EIO;
}
flags &= ~SLI4_INIT_LINK_F_UNFAIR;
flags &= ~SLI4_INIT_LINK_F_NO_LIRP;
flags &= ~SLI4_INIT_LINK_F_LOOP_VALID_CHK;
flags &= ~SLI4_INIT_LINK_F_NO_LISA;
flags &= ~SLI4_INIT_LINK_F_PICK_HI_ALPA;
init_link->flags0 = cpu_to_le32(flags);
return 0;
}
int
sli_cmd_init_vfi(struct sli4 *sli4, void *buf, u16 vfi, u16 fcfi, u16 vpi)
{
struct sli4_cmd_init_vfi *init_vfi = buf;
u16 flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
init_vfi->hdr.command = SLI4_MBX_CMD_INIT_VFI;
init_vfi->vfi = cpu_to_le16(vfi);
init_vfi->fcfi = cpu_to_le16(fcfi);
/*
* If the VPI is valid, initialize it at the same time as
* the VFI
*/
if (vpi != U16_MAX) {
flags |= SLI4_INIT_VFI_FLAG_VP;
init_vfi->flags0_word = cpu_to_le16(flags);
init_vfi->vpi = cpu_to_le16(vpi);
}
return 0;
}
int
sli_cmd_init_vpi(struct sli4 *sli4, void *buf, u16 vpi, u16 vfi)
{
struct sli4_cmd_init_vpi *init_vpi = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
init_vpi->hdr.command = SLI4_MBX_CMD_INIT_VPI;
init_vpi->vpi = cpu_to_le16(vpi);
init_vpi->vfi = cpu_to_le16(vfi);
return 0;
}
int
sli_cmd_post_xri(struct sli4 *sli4, void *buf, u16 xri_base, u16 xri_count)
{
struct sli4_cmd_post_xri *post_xri = buf;
u16 xri_count_flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
post_xri->hdr.command = SLI4_MBX_CMD_POST_XRI;
post_xri->xri_base = cpu_to_le16(xri_base);
xri_count_flags = xri_count & SLI4_POST_XRI_COUNT;
xri_count_flags |= SLI4_POST_XRI_FLAG_ENX;
xri_count_flags |= SLI4_POST_XRI_FLAG_VAL;
post_xri->xri_count_flags = cpu_to_le16(xri_count_flags);
return 0;
}
int
sli_cmd_release_xri(struct sli4 *sli4, void *buf, u8 num_xri)
{
struct sli4_cmd_release_xri *release_xri = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
release_xri->hdr.command = SLI4_MBX_CMD_RELEASE_XRI;
release_xri->xri_count_word = cpu_to_le16(num_xri &
SLI4_RELEASE_XRI_COUNT);
return 0;
}
static int
sli_cmd_read_config(struct sli4 *sli4, void *buf)
{
struct sli4_cmd_read_config *read_config = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
read_config->hdr.command = SLI4_MBX_CMD_READ_CONFIG;
return 0;
}
int
sli_cmd_read_nvparms(struct sli4 *sli4, void *buf)
{
struct sli4_cmd_read_nvparms *read_nvparms = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
read_nvparms->hdr.command = SLI4_MBX_CMD_READ_NVPARMS;
return 0;
}
int
sli_cmd_write_nvparms(struct sli4 *sli4, void *buf, u8 *wwpn, u8 *wwnn,
u8 hard_alpa, u32 preferred_d_id)
{
struct sli4_cmd_write_nvparms *write_nvparms = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
write_nvparms->hdr.command = SLI4_MBX_CMD_WRITE_NVPARMS;
memcpy(write_nvparms->wwpn, wwpn, 8);
memcpy(write_nvparms->wwnn, wwnn, 8);
write_nvparms->hard_alpa_d_id =
cpu_to_le32((preferred_d_id << 8) | hard_alpa);
return 0;
}
static int
sli_cmd_read_rev(struct sli4 *sli4, void *buf, struct efc_dma *vpd)
{
struct sli4_cmd_read_rev *read_rev = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
read_rev->hdr.command = SLI4_MBX_CMD_READ_REV;
if (vpd && vpd->size) {
read_rev->flags0_word |= cpu_to_le16(SLI4_READ_REV_FLAG_VPD);
read_rev->available_length_dword =
cpu_to_le32(vpd->size &
SLI4_READ_REV_AVAILABLE_LENGTH);
read_rev->hostbuf.low =
cpu_to_le32(lower_32_bits(vpd->phys));
read_rev->hostbuf.high =
cpu_to_le32(upper_32_bits(vpd->phys));
}
return 0;
}
int
sli_cmd_read_sparm64(struct sli4 *sli4, void *buf, struct efc_dma *dma, u16 vpi)
{
struct sli4_cmd_read_sparm64 *read_sparm64 = buf;
if (vpi == U16_MAX) {
efc_log_err(sli4, "special VPI not supported!!!\n");
return -EIO;
}
if (!dma || !dma->phys) {
efc_log_err(sli4, "bad DMA buffer\n");
return -EIO;
}
memset(buf, 0, SLI4_BMBX_SIZE);
read_sparm64->hdr.command = SLI4_MBX_CMD_READ_SPARM64;
read_sparm64->bde_64.bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(dma->size & SLI4_BDE_LEN_MASK));
read_sparm64->bde_64.u.data.low =
cpu_to_le32(lower_32_bits(dma->phys));
read_sparm64->bde_64.u.data.high =
cpu_to_le32(upper_32_bits(dma->phys));
read_sparm64->vpi = cpu_to_le16(vpi);
return 0;
}
int
sli_cmd_read_topology(struct sli4 *sli4, void *buf, struct efc_dma *dma)
{
struct sli4_cmd_read_topology *read_topo = buf;
if (!dma || !dma->size)
return -EIO;
if (dma->size < SLI4_MIN_LOOP_MAP_BYTES) {
efc_log_err(sli4, "loop map buffer too small %zx\n", dma->size);
return -EIO;
}
memset(buf, 0, SLI4_BMBX_SIZE);
read_topo->hdr.command = SLI4_MBX_CMD_READ_TOPOLOGY;
memset(dma->virt, 0, dma->size);
read_topo->bde_loop_map.bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(dma->size & SLI4_BDE_LEN_MASK));
read_topo->bde_loop_map.u.data.low =
cpu_to_le32(lower_32_bits(dma->phys));
read_topo->bde_loop_map.u.data.high =
cpu_to_le32(upper_32_bits(dma->phys));
return 0;
}
int
sli_cmd_reg_fcfi(struct sli4 *sli4, void *buf, u16 index,
struct sli4_cmd_rq_cfg *rq_cfg)
{
struct sli4_cmd_reg_fcfi *reg_fcfi = buf;
u32 i;
memset(buf, 0, SLI4_BMBX_SIZE);
reg_fcfi->hdr.command = SLI4_MBX_CMD_REG_FCFI;
reg_fcfi->fcf_index = cpu_to_le16(index);
for (i = 0; i < SLI4_CMD_REG_FCFI_NUM_RQ_CFG; i++) {
switch (i) {
case 0:
reg_fcfi->rqid0 = rq_cfg[0].rq_id;
break;
case 1:
reg_fcfi->rqid1 = rq_cfg[1].rq_id;
break;
case 2:
reg_fcfi->rqid2 = rq_cfg[2].rq_id;
break;
case 3:
reg_fcfi->rqid3 = rq_cfg[3].rq_id;
break;
}
reg_fcfi->rq_cfg[i].r_ctl_mask = rq_cfg[i].r_ctl_mask;
reg_fcfi->rq_cfg[i].r_ctl_match = rq_cfg[i].r_ctl_match;
reg_fcfi->rq_cfg[i].type_mask = rq_cfg[i].type_mask;
reg_fcfi->rq_cfg[i].type_match = rq_cfg[i].type_match;
}
return 0;
}
int
sli_cmd_reg_fcfi_mrq(struct sli4 *sli4, void *buf, u8 mode, u16 fcf_index,
u8 rq_selection_policy, u8 mrq_bit_mask, u16 num_mrqs,
struct sli4_cmd_rq_cfg *rq_cfg)
{
struct sli4_cmd_reg_fcfi_mrq *reg_fcfi_mrq = buf;
u32 i;
u32 mrq_flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
reg_fcfi_mrq->hdr.command = SLI4_MBX_CMD_REG_FCFI_MRQ;
if (mode == SLI4_CMD_REG_FCFI_SET_FCFI_MODE) {
reg_fcfi_mrq->fcf_index = cpu_to_le16(fcf_index);
goto done;
}
reg_fcfi_mrq->dw8_vlan = cpu_to_le32(SLI4_REGFCFI_MRQ_MODE);
for (i = 0; i < SLI4_CMD_REG_FCFI_NUM_RQ_CFG; i++) {
reg_fcfi_mrq->rq_cfg[i].r_ctl_mask = rq_cfg[i].r_ctl_mask;
reg_fcfi_mrq->rq_cfg[i].r_ctl_match = rq_cfg[i].r_ctl_match;
reg_fcfi_mrq->rq_cfg[i].type_mask = rq_cfg[i].type_mask;
reg_fcfi_mrq->rq_cfg[i].type_match = rq_cfg[i].type_match;
switch (i) {
case 3:
reg_fcfi_mrq->rqid3 = rq_cfg[i].rq_id;
break;
case 2:
reg_fcfi_mrq->rqid2 = rq_cfg[i].rq_id;
break;
case 1:
reg_fcfi_mrq->rqid1 = rq_cfg[i].rq_id;
break;
case 0:
reg_fcfi_mrq->rqid0 = rq_cfg[i].rq_id;
break;
}
}
mrq_flags = num_mrqs & SLI4_REGFCFI_MRQ_MASK_NUM_PAIRS;
mrq_flags |= (mrq_bit_mask << 8);
mrq_flags |= (rq_selection_policy << 12);
reg_fcfi_mrq->dw9_mrqflags = cpu_to_le32(mrq_flags);
done:
return 0;
}
int
sli_cmd_reg_rpi(struct sli4 *sli4, void *buf, u32 rpi, u32 vpi, u32 fc_id,
struct efc_dma *dma, u8 update, u8 enable_t10_pi)
{
struct sli4_cmd_reg_rpi *reg_rpi = buf;
u32 rportid_flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
reg_rpi->hdr.command = SLI4_MBX_CMD_REG_RPI;
reg_rpi->rpi = cpu_to_le16(rpi);
rportid_flags = fc_id & SLI4_REGRPI_REMOTE_N_PORTID;
if (update)
rportid_flags |= SLI4_REGRPI_UPD;
else
rportid_flags &= ~SLI4_REGRPI_UPD;
if (enable_t10_pi)
rportid_flags |= SLI4_REGRPI_ETOW;
else
rportid_flags &= ~SLI4_REGRPI_ETOW;
reg_rpi->dw2_rportid_flags = cpu_to_le32(rportid_flags);
reg_rpi->bde_64.bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(SLI4_REG_RPI_BUF_LEN & SLI4_BDE_LEN_MASK));
reg_rpi->bde_64.u.data.low =
cpu_to_le32(lower_32_bits(dma->phys));
reg_rpi->bde_64.u.data.high =
cpu_to_le32(upper_32_bits(dma->phys));
reg_rpi->vpi = cpu_to_le16(vpi);
return 0;
}
int
sli_cmd_reg_vfi(struct sli4 *sli4, void *buf, size_t size,
u16 vfi, u16 fcfi, struct efc_dma dma,
u16 vpi, __be64 sli_wwpn, u32 fc_id)
{
struct sli4_cmd_reg_vfi *reg_vfi = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
reg_vfi->hdr.command = SLI4_MBX_CMD_REG_VFI;
reg_vfi->vfi = cpu_to_le16(vfi);
reg_vfi->fcfi = cpu_to_le16(fcfi);
reg_vfi->sparm.bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(SLI4_REG_RPI_BUF_LEN & SLI4_BDE_LEN_MASK));
reg_vfi->sparm.u.data.low =
cpu_to_le32(lower_32_bits(dma.phys));
reg_vfi->sparm.u.data.high =
cpu_to_le32(upper_32_bits(dma.phys));
reg_vfi->e_d_tov = cpu_to_le32(sli4->e_d_tov);
reg_vfi->r_a_tov = cpu_to_le32(sli4->r_a_tov);
reg_vfi->dw0w1_flags |= cpu_to_le16(SLI4_REGVFI_VP);
reg_vfi->vpi = cpu_to_le16(vpi);
memcpy(reg_vfi->wwpn, &sli_wwpn, sizeof(reg_vfi->wwpn));
reg_vfi->dw10_lportid_flags = cpu_to_le32(fc_id);
return 0;
}
int
sli_cmd_reg_vpi(struct sli4 *sli4, void *buf, u32 fc_id, __be64 sli_wwpn,
u16 vpi, u16 vfi, bool update)
{
struct sli4_cmd_reg_vpi *reg_vpi = buf;
u32 flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
reg_vpi->hdr.command = SLI4_MBX_CMD_REG_VPI;
flags = (fc_id & SLI4_REGVPI_LOCAL_N_PORTID);
if (update)
flags |= SLI4_REGVPI_UPD;
else
flags &= ~SLI4_REGVPI_UPD;
reg_vpi->dw2_lportid_flags = cpu_to_le32(flags);
memcpy(reg_vpi->wwpn, &sli_wwpn, sizeof(reg_vpi->wwpn));
reg_vpi->vpi = cpu_to_le16(vpi);
reg_vpi->vfi = cpu_to_le16(vfi);
return 0;
}
static int
sli_cmd_request_features(struct sli4 *sli4, void *buf, u32 features_mask,
bool query)
{
struct sli4_cmd_request_features *req_features = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
req_features->hdr.command = SLI4_MBX_CMD_RQST_FEATURES;
if (query)
req_features->dw1_qry = cpu_to_le32(SLI4_REQFEAT_QRY);
req_features->cmd = cpu_to_le32(features_mask);
return 0;
}
int
sli_cmd_unreg_fcfi(struct sli4 *sli4, void *buf, u16 indicator)
{
struct sli4_cmd_unreg_fcfi *unreg_fcfi = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
unreg_fcfi->hdr.command = SLI4_MBX_CMD_UNREG_FCFI;
unreg_fcfi->fcfi = cpu_to_le16(indicator);
return 0;
}
int
sli_cmd_unreg_rpi(struct sli4 *sli4, void *buf, u16 indicator,
enum sli4_resource which, u32 fc_id)
{
struct sli4_cmd_unreg_rpi *unreg_rpi = buf;
u32 flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
unreg_rpi->hdr.command = SLI4_MBX_CMD_UNREG_RPI;
switch (which) {
case SLI4_RSRC_RPI:
flags |= SLI4_UNREG_RPI_II_RPI;
if (fc_id == U32_MAX)
break;
flags |= SLI4_UNREG_RPI_DP;
unreg_rpi->dw2_dest_n_portid =
cpu_to_le32(fc_id & SLI4_UNREG_RPI_DEST_N_PORTID_MASK);
break;
case SLI4_RSRC_VPI:
flags |= SLI4_UNREG_RPI_II_VPI;
break;
case SLI4_RSRC_VFI:
flags |= SLI4_UNREG_RPI_II_VFI;
break;
case SLI4_RSRC_FCFI:
flags |= SLI4_UNREG_RPI_II_FCFI;
break;
default:
efc_log_info(sli4, "unknown type %#x\n", which);
return -EIO;
}
unreg_rpi->dw1w1_flags = cpu_to_le16(flags);
unreg_rpi->index = cpu_to_le16(indicator);
return 0;
}
int
sli_cmd_unreg_vfi(struct sli4 *sli4, void *buf, u16 index, u32 which)
{
struct sli4_cmd_unreg_vfi *unreg_vfi = buf;
memset(buf, 0, SLI4_BMBX_SIZE);
unreg_vfi->hdr.command = SLI4_MBX_CMD_UNREG_VFI;
switch (which) {
case SLI4_UNREG_TYPE_DOMAIN:
unreg_vfi->index = cpu_to_le16(index);
break;
case SLI4_UNREG_TYPE_FCF:
unreg_vfi->index = cpu_to_le16(index);
break;
case SLI4_UNREG_TYPE_ALL:
unreg_vfi->index = cpu_to_le16(U32_MAX);
break;
default:
return -EIO;
}
if (which != SLI4_UNREG_TYPE_DOMAIN)
unreg_vfi->dw2_flags = cpu_to_le16(SLI4_UNREG_VFI_II_FCFI);
return 0;
}
int
sli_cmd_unreg_vpi(struct sli4 *sli4, void *buf, u16 indicator, u32 which)
{
struct sli4_cmd_unreg_vpi *unreg_vpi = buf;
u32 flags = 0;
memset(buf, 0, SLI4_BMBX_SIZE);
unreg_vpi->hdr.command = SLI4_MBX_CMD_UNREG_VPI;
unreg_vpi->index = cpu_to_le16(indicator);
switch (which) {
case SLI4_UNREG_TYPE_PORT:
flags |= SLI4_UNREG_VPI_II_VPI;
break;
case SLI4_UNREG_TYPE_DOMAIN:
flags |= SLI4_UNREG_VPI_II_VFI;
break;
case SLI4_UNREG_TYPE_FCF:
flags |= SLI4_UNREG_VPI_II_FCFI;
break;
case SLI4_UNREG_TYPE_ALL:
/* override indicator */
unreg_vpi->index = cpu_to_le16(U32_MAX);
flags |= SLI4_UNREG_VPI_II_FCFI;
break;
default:
return -EIO;
}
unreg_vpi->dw2w0_flags = cpu_to_le16(flags);
return 0;
}
static int
sli_cmd_common_modify_eq_delay(struct sli4 *sli4, void *buf,
struct sli4_queue *q, int num_q, u32 shift,
u32 delay_mult)
{
struct sli4_rqst_cmn_modify_eq_delay *req = NULL;
int i;
req = sli_config_cmd_init(sli4, buf,
SLI4_CFG_PYLD_LENGTH(cmn_modify_eq_delay), NULL);
if (!req)
return -EIO;
sli_cmd_fill_hdr(&req->hdr, SLI4_CMN_MODIFY_EQ_DELAY,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN(cmn_modify_eq_delay));
req->num_eq = cpu_to_le32(num_q);
for (i = 0; i < num_q; i++) {
req->eq_delay_record[i].eq_id = cpu_to_le32(q[i].id);
req->eq_delay_record[i].phase = cpu_to_le32(shift);
req->eq_delay_record[i].delay_multiplier =
cpu_to_le32(delay_mult);
}
return 0;
}
void
sli4_cmd_lowlevel_set_watchdog(struct sli4 *sli4, void *buf,
size_t size, u16 timeout)
{
struct sli4_rqst_lowlevel_set_watchdog *req = NULL;
req = sli_config_cmd_init(sli4, buf,
SLI4_CFG_PYLD_LENGTH(lowlevel_set_watchdog), NULL);
if (!req)
return;
sli_cmd_fill_hdr(&req->hdr, SLI4_OPC_LOWLEVEL_SET_WATCHDOG,
SLI4_SUBSYSTEM_LOWLEVEL, CMD_V0,
SLI4_RQST_PYLD_LEN(lowlevel_set_watchdog));
req->watchdog_timeout = cpu_to_le16(timeout);
}
static int
sli_cmd_common_get_cntl_attributes(struct sli4 *sli4, void *buf,
struct efc_dma *dma)
{
struct sli4_rqst_hdr *hdr = NULL;
hdr = sli_config_cmd_init(sli4, buf, SLI4_RQST_CMDSZ(hdr), dma);
if (!hdr)
return -EIO;
hdr->opcode = SLI4_CMN_GET_CNTL_ATTRIBUTES;
hdr->subsystem = SLI4_SUBSYSTEM_COMMON;
hdr->request_length = cpu_to_le32(dma->size);
return 0;
}
static int
sli_cmd_common_get_cntl_addl_attributes(struct sli4 *sli4, void *buf,
struct efc_dma *dma)
{
struct sli4_rqst_hdr *hdr = NULL;
hdr = sli_config_cmd_init(sli4, buf, SLI4_RQST_CMDSZ(hdr), dma);
if (!hdr)
return -EIO;
hdr->opcode = SLI4_CMN_GET_CNTL_ADDL_ATTRS;
hdr->subsystem = SLI4_SUBSYSTEM_COMMON;
hdr->request_length = cpu_to_le32(dma->size);
return 0;
}
int
sli_cmd_common_nop(struct sli4 *sli4, void *buf, uint64_t context)
{
struct sli4_rqst_cmn_nop *nop = NULL;
nop = sli_config_cmd_init(sli4, buf, SLI4_CFG_PYLD_LENGTH(cmn_nop),
NULL);
if (!nop)
return -EIO;
sli_cmd_fill_hdr(&nop->hdr, SLI4_CMN_NOP, SLI4_SUBSYSTEM_COMMON,
CMD_V0, SLI4_RQST_PYLD_LEN(cmn_nop));
memcpy(&nop->context, &context, sizeof(context));
return 0;
}
int
sli_cmd_common_get_resource_extent_info(struct sli4 *sli4, void *buf, u16 rtype)
{
struct sli4_rqst_cmn_get_resource_extent_info *ext = NULL;
ext = sli_config_cmd_init(sli4, buf,
SLI4_RQST_CMDSZ(cmn_get_resource_extent_info), NULL);
if (!ext)
return -EIO;
sli_cmd_fill_hdr(&ext->hdr, SLI4_CMN_GET_RSC_EXTENT_INFO,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN(cmn_get_resource_extent_info));
ext->resource_type = cpu_to_le16(rtype);
return 0;
}
int
sli_cmd_common_get_sli4_parameters(struct sli4 *sli4, void *buf)
{
struct sli4_rqst_hdr *hdr = NULL;
hdr = sli_config_cmd_init(sli4, buf,
SLI4_CFG_PYLD_LENGTH(cmn_get_sli4_params), NULL);
if (!hdr)
return -EIO;
hdr->opcode = SLI4_CMN_GET_SLI4_PARAMS;
hdr->subsystem = SLI4_SUBSYSTEM_COMMON;
hdr->request_length = SLI4_RQST_PYLD_LEN(cmn_get_sli4_params);
return 0;
}
static int
sli_cmd_common_get_port_name(struct sli4 *sli4, void *buf)
{
struct sli4_rqst_cmn_get_port_name *pname;
pname = sli_config_cmd_init(sli4, buf,
SLI4_CFG_PYLD_LENGTH(cmn_get_port_name), NULL);
if (!pname)
return -EIO;
sli_cmd_fill_hdr(&pname->hdr, SLI4_CMN_GET_PORT_NAME,
SLI4_SUBSYSTEM_COMMON, CMD_V1,
SLI4_RQST_PYLD_LEN(cmn_get_port_name));
/* Set the port type value (ethernet=0, FC=1) for V1 commands */
pname->port_type = SLI4_PORT_TYPE_FC;
return 0;
}
int
sli_cmd_common_write_object(struct sli4 *sli4, void *buf, u16 noc,
u16 eof, u32 desired_write_length,
u32 offset, char *obj_name,
struct efc_dma *dma)
{
struct sli4_rqst_cmn_write_object *wr_obj = NULL;
struct sli4_bde *bde;
u32 dwflags = 0;
wr_obj = sli_config_cmd_init(sli4, buf,
SLI4_RQST_CMDSZ(cmn_write_object) + sizeof(*bde), NULL);
if (!wr_obj)
return -EIO;
sli_cmd_fill_hdr(&wr_obj->hdr, SLI4_CMN_WRITE_OBJECT,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN_VAR(cmn_write_object, sizeof(*bde)));
if (noc)
dwflags |= SLI4_RQ_DES_WRITE_LEN_NOC;
if (eof)
dwflags |= SLI4_RQ_DES_WRITE_LEN_EOF;
dwflags |= (desired_write_length & SLI4_RQ_DES_WRITE_LEN);
wr_obj->desired_write_len_dword = cpu_to_le32(dwflags);
wr_obj->write_offset = cpu_to_le32(offset);
strncpy(wr_obj->object_name, obj_name, sizeof(wr_obj->object_name) - 1);
wr_obj->host_buffer_descriptor_count = cpu_to_le32(1);
bde = (struct sli4_bde *)wr_obj->host_buffer_descriptor;
/* Setup to transfer xfer_size bytes to device */
bde->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(desired_write_length & SLI4_BDE_LEN_MASK));
bde->u.data.low = cpu_to_le32(lower_32_bits(dma->phys));
bde->u.data.high = cpu_to_le32(upper_32_bits(dma->phys));
return 0;
}
int
sli_cmd_common_delete_object(struct sli4 *sli4, void *buf, char *obj_name)
{
struct sli4_rqst_cmn_delete_object *req = NULL;
req = sli_config_cmd_init(sli4, buf,
SLI4_RQST_CMDSZ(cmn_delete_object), NULL);
if (!req)
return -EIO;
sli_cmd_fill_hdr(&req->hdr, SLI4_CMN_DELETE_OBJECT,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN(cmn_delete_object));
strncpy(req->object_name, obj_name, sizeof(req->object_name) - 1);
return 0;
}
int
sli_cmd_common_read_object(struct sli4 *sli4, void *buf, u32 desired_read_len,
u32 offset, char *obj_name, struct efc_dma *dma)
{
struct sli4_rqst_cmn_read_object *rd_obj = NULL;
struct sli4_bde *bde;
rd_obj = sli_config_cmd_init(sli4, buf,
SLI4_RQST_CMDSZ(cmn_read_object) + sizeof(*bde), NULL);
if (!rd_obj)
return -EIO;
sli_cmd_fill_hdr(&rd_obj->hdr, SLI4_CMN_READ_OBJECT,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN_VAR(cmn_read_object, sizeof(*bde)));
rd_obj->desired_read_length_dword =
cpu_to_le32(desired_read_len & SLI4_REQ_DESIRE_READLEN);
rd_obj->read_offset = cpu_to_le32(offset);
strncpy(rd_obj->object_name, obj_name, sizeof(rd_obj->object_name) - 1);
rd_obj->host_buffer_descriptor_count = cpu_to_le32(1);
bde = (struct sli4_bde *)rd_obj->host_buffer_descriptor;
/* Setup to transfer xfer_size bytes to device */
bde->bde_type_buflen =
cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) |
(desired_read_len & SLI4_BDE_LEN_MASK));
if (dma) {
bde->u.data.low = cpu_to_le32(lower_32_bits(dma->phys));
bde->u.data.high = cpu_to_le32(upper_32_bits(dma->phys));
} else {
bde->u.data.low = 0;
bde->u.data.high = 0;
}
return 0;
}
int
sli_cmd_dmtf_exec_clp_cmd(struct sli4 *sli4, void *buf, struct efc_dma *cmd,
struct efc_dma *resp)
{
struct sli4_rqst_dmtf_exec_clp_cmd *clp_cmd = NULL;
clp_cmd = sli_config_cmd_init(sli4, buf,
SLI4_RQST_CMDSZ(dmtf_exec_clp_cmd), NULL);
if (!clp_cmd)
return -EIO;
sli_cmd_fill_hdr(&clp_cmd->hdr, DMTF_EXEC_CLP_CMD, SLI4_SUBSYSTEM_DMTF,
CMD_V0, SLI4_RQST_PYLD_LEN(dmtf_exec_clp_cmd));
clp_cmd->cmd_buf_length = cpu_to_le32(cmd->size);
clp_cmd->cmd_buf_addr_low = cpu_to_le32(lower_32_bits(cmd->phys));
clp_cmd->cmd_buf_addr_high = cpu_to_le32(upper_32_bits(cmd->phys));
clp_cmd->resp_buf_length = cpu_to_le32(resp->size);
clp_cmd->resp_buf_addr_low = cpu_to_le32(lower_32_bits(resp->phys));
clp_cmd->resp_buf_addr_high = cpu_to_le32(upper_32_bits(resp->phys));
return 0;
}
int
sli_cmd_common_set_dump_location(struct sli4 *sli4, void *buf, bool query,
bool is_buffer_list,
struct efc_dma *buffer, u8 fdb)
{
struct sli4_rqst_cmn_set_dump_location *set_dump_loc = NULL;
u32 buffer_length_flag = 0;
set_dump_loc = sli_config_cmd_init(sli4, buf,
SLI4_RQST_CMDSZ(cmn_set_dump_location), NULL);
if (!set_dump_loc)
return -EIO;
sli_cmd_fill_hdr(&set_dump_loc->hdr, SLI4_CMN_SET_DUMP_LOCATION,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN(cmn_set_dump_location));
if (is_buffer_list)
buffer_length_flag |= SLI4_CMN_SET_DUMP_BLP;
if (query)
buffer_length_flag |= SLI4_CMN_SET_DUMP_QRY;
if (fdb)
buffer_length_flag |= SLI4_CMN_SET_DUMP_FDB;
if (buffer) {
set_dump_loc->buf_addr_low =
cpu_to_le32(lower_32_bits(buffer->phys));
set_dump_loc->buf_addr_high =
cpu_to_le32(upper_32_bits(buffer->phys));
buffer_length_flag |=
buffer->len & SLI4_CMN_SET_DUMP_BUFFER_LEN;
} else {
set_dump_loc->buf_addr_low = 0;
set_dump_loc->buf_addr_high = 0;
set_dump_loc->buffer_length_dword = 0;
}
set_dump_loc->buffer_length_dword = cpu_to_le32(buffer_length_flag);
return 0;
}
int
sli_cmd_common_set_features(struct sli4 *sli4, void *buf, u32 feature,
u32 param_len, void *parameter)
{
struct sli4_rqst_cmn_set_features *cmd = NULL;
cmd = sli_config_cmd_init(sli4, buf,
SLI4_RQST_CMDSZ(cmn_set_features), NULL);
if (!cmd)
return -EIO;
sli_cmd_fill_hdr(&cmd->hdr, SLI4_CMN_SET_FEATURES,
SLI4_SUBSYSTEM_COMMON, CMD_V0,
SLI4_RQST_PYLD_LEN(cmn_set_features));
cmd->feature = cpu_to_le32(feature);
cmd->param_len = cpu_to_le32(param_len);
memcpy(cmd->params, parameter, param_len);
return 0;
}
int
sli_cqe_mq(struct sli4 *sli4, void *buf)
{
struct sli4_mcqe *mcqe = buf;
u32 dwflags = le32_to_cpu(mcqe->dw3_flags);
/*
* Firmware can split mbx completions into two MCQEs: first with only
* the "consumed" bit set and a second with the "complete" bit set.
* Thus, ignore MCQE unless "complete" is set.
*/
if (!(dwflags & SLI4_MCQE_COMPLETED))
return SLI4_MCQE_STATUS_NOT_COMPLETED;
if (le16_to_cpu(mcqe->completion_status)) {
efc_log_info(sli4, "status(st=%#x ext=%#x con=%d cmp=%d ae=%d val=%d)\n",
le16_to_cpu(mcqe->completion_status),
le16_to_cpu(mcqe->extended_status),
(dwflags & SLI4_MCQE_CONSUMED),
(dwflags & SLI4_MCQE_COMPLETED),
(dwflags & SLI4_MCQE_AE),
(dwflags & SLI4_MCQE_VALID));
}
return le16_to_cpu(mcqe->completion_status);
}
int
sli_cqe_async(struct sli4 *sli4, void *buf)
{
struct sli4_acqe *acqe = buf;
int rc = -EIO;
if (!buf) {
efc_log_err(sli4, "bad parameter sli4=%p buf=%p\n", sli4, buf);
return -EIO;
}
switch (acqe->event_code) {
case SLI4_ACQE_EVENT_CODE_LINK_STATE:
efc_log_info(sli4, "Unsupported by FC link, evt code:%#x\n",
acqe->event_code);
break;
case SLI4_ACQE_EVENT_CODE_GRP_5:
efc_log_info(sli4, "ACQE GRP5\n");
break;
case SLI4_ACQE_EVENT_CODE_SLI_PORT_EVENT:
efc_log_info(sli4, "ACQE SLI Port, type=0x%x, data1,2=0x%08x,0x%08x\n",
acqe->event_type,
le32_to_cpu(acqe->event_data[0]),
le32_to_cpu(acqe->event_data[1]));
break;
case SLI4_ACQE_EVENT_CODE_FC_LINK_EVENT:
rc = sli_fc_process_link_attention(sli4, buf);
break;
default:
efc_log_info(sli4, "ACQE unknown=%#x\n", acqe->event_code);
}
return rc;
}
bool
sli_fw_ready(struct sli4 *sli4)
{
u32 val;
/* Determine if the chip FW is in a ready state */
val = sli_reg_read_status(sli4);
return (val & SLI4_PORT_STATUS_RDY) ? 1 : 0;
}
static bool
sli_wait_for_fw_ready(struct sli4 *sli4, u32 timeout_ms)
{
unsigned long end;
end = jiffies + msecs_to_jiffies(timeout_ms);
do {
if (sli_fw_ready(sli4))
return true;
usleep_range(1000, 2000);
} while (time_before(jiffies, end));
return false;
}
static bool
sli_sliport_reset(struct sli4 *sli4)
{
bool rc;
u32 val;
val = SLI4_PORT_CTRL_IP;
/* Initialize port, endian */
writel(val, (sli4->reg[0] + SLI4_PORT_CTRL_REG));
rc = sli_wait_for_fw_ready(sli4, SLI4_FW_READY_TIMEOUT_MSEC);
if (!rc)
efc_log_crit(sli4, "port failed to become ready after initialization\n");
return rc;
}
static bool
sli_fw_init(struct sli4 *sli4)
{
/*
* Is firmware ready for operation?
*/
if (!sli_wait_for_fw_ready(sli4, SLI4_FW_READY_TIMEOUT_MSEC)) {
efc_log_crit(sli4, "FW status is NOT ready\n");
return false;
}
/*
* Reset port to a known state
*/
return sli_sliport_reset(sli4);
}
static int
sli_request_features(struct sli4 *sli4, u32 *features, bool query)
{
struct sli4_cmd_request_features *req_features = sli4->bmbx.virt;
if (sli_cmd_request_features(sli4, sli4->bmbx.virt, *features, query)) {
efc_log_err(sli4, "bad REQUEST_FEATURES write\n");
return -EIO;
}
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox write fail\n");
return -EIO;
}
if (le16_to_cpu(req_features->hdr.status)) {
efc_log_err(sli4, "REQUEST_FEATURES bad status %#x\n",
le16_to_cpu(req_features->hdr.status));
return -EIO;
}
*features = le32_to_cpu(req_features->resp);
return 0;
}
void
sli_calc_max_qentries(struct sli4 *sli4)
{
enum sli4_qtype q;
u32 qentries;
for (q = SLI4_QTYPE_EQ; q < SLI4_QTYPE_MAX; q++) {
sli4->qinfo.max_qentries[q] =
sli_convert_mask_to_count(sli4->qinfo.count_method[q],
sli4->qinfo.count_mask[q]);
}
/* single, contiguous DMA allocations will be called for each queue
* of size (max_qentries * queue entry size); since these can be large,
* check against the OS max DMA allocation size
*/
for (q = SLI4_QTYPE_EQ; q < SLI4_QTYPE_MAX; q++) {
qentries = sli4->qinfo.max_qentries[q];
efc_log_info(sli4, "[%s]: max_qentries from %d to %d\n",
SLI4_QNAME[q],
sli4->qinfo.max_qentries[q], qentries);
sli4->qinfo.max_qentries[q] = qentries;
}
}
static int
sli_get_read_config(struct sli4 *sli4)
{
struct sli4_rsp_read_config *conf = sli4->bmbx.virt;
u32 i, total;
u32 *base;
if (sli_cmd_read_config(sli4, sli4->bmbx.virt)) {
efc_log_err(sli4, "bad READ_CONFIG write\n");
return -EIO;
}
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox fail (READ_CONFIG)\n");
return -EIO;
}
if (le16_to_cpu(conf->hdr.status)) {
efc_log_err(sli4, "READ_CONFIG bad status %#x\n",
le16_to_cpu(conf->hdr.status));
return -EIO;
}
sli4->params.has_extents =
le32_to_cpu(conf->ext_dword) & SLI4_READ_CFG_RESP_RESOURCE_EXT;
if (sli4->params.has_extents) {
efc_log_err(sli4, "extents not supported\n");
return -EIO;
}
base = sli4->ext[0].base;
if (!base) {
int size = SLI4_RSRC_MAX * sizeof(u32);
base = kzalloc(size, GFP_KERNEL);
if (!base)
return -EIO;
}
for (i = 0; i < SLI4_RSRC_MAX; i++) {
sli4->ext[i].number = 1;
sli4->ext[i].n_alloc = 0;
sli4->ext[i].base = &base[i];
}
sli4->ext[SLI4_RSRC_VFI].base[0] = le16_to_cpu(conf->vfi_base);
sli4->ext[SLI4_RSRC_VFI].size = le16_to_cpu(conf->vfi_count);
sli4->ext[SLI4_RSRC_VPI].base[0] = le16_to_cpu(conf->vpi_base);
sli4->ext[SLI4_RSRC_VPI].size = le16_to_cpu(conf->vpi_count);
sli4->ext[SLI4_RSRC_RPI].base[0] = le16_to_cpu(conf->rpi_base);
sli4->ext[SLI4_RSRC_RPI].size = le16_to_cpu(conf->rpi_count);
sli4->ext[SLI4_RSRC_XRI].base[0] = le16_to_cpu(conf->xri_base);
sli4->ext[SLI4_RSRC_XRI].size = le16_to_cpu(conf->xri_count);
sli4->ext[SLI4_RSRC_FCFI].base[0] = 0;
sli4->ext[SLI4_RSRC_FCFI].size = le16_to_cpu(conf->fcfi_count);
for (i = 0; i < SLI4_RSRC_MAX; i++) {
total = sli4->ext[i].number * sli4->ext[i].size;
sli4->ext[i].use_map = bitmap_zalloc(total, GFP_KERNEL);
if (!sli4->ext[i].use_map) {
efc_log_err(sli4, "bitmap memory allocation failed %d\n",
i);
return -EIO;
}
sli4->ext[i].map_size = total;
}
sli4->topology = (le32_to_cpu(conf->topology_dword) &
SLI4_READ_CFG_RESP_TOPOLOGY) >> 24;
switch (sli4->topology) {
case SLI4_READ_CFG_TOPO_FC:
efc_log_info(sli4, "FC (unknown)\n");
break;
case SLI4_READ_CFG_TOPO_NON_FC_AL:
efc_log_info(sli4, "FC (direct attach)\n");
break;
case SLI4_READ_CFG_TOPO_FC_AL:
efc_log_info(sli4, "FC (arbitrated loop)\n");
break;
default:
efc_log_info(sli4, "bad topology %#x\n", sli4->topology);
}
sli4->e_d_tov = le16_to_cpu(conf->e_d_tov);
sli4->r_a_tov = le16_to_cpu(conf->r_a_tov);
sli4->link_module_type = le16_to_cpu(conf->lmt);
sli4->qinfo.max_qcount[SLI4_QTYPE_EQ] = le16_to_cpu(conf->eq_count);
sli4->qinfo.max_qcount[SLI4_QTYPE_CQ] = le16_to_cpu(conf->cq_count);
sli4->qinfo.max_qcount[SLI4_QTYPE_WQ] = le16_to_cpu(conf->wq_count);
sli4->qinfo.max_qcount[SLI4_QTYPE_RQ] = le16_to_cpu(conf->rq_count);
/*
* READ_CONFIG doesn't give the max number of MQ. Applications
* will typically want 1, but we may need another at some future
* date. Dummy up a "max" MQ count here.
*/
sli4->qinfo.max_qcount[SLI4_QTYPE_MQ] = SLI4_USER_MQ_COUNT;
return 0;
}
static int
sli_get_sli4_parameters(struct sli4 *sli4)
{
struct sli4_rsp_cmn_get_sli4_params *parms;
u32 dw_loopback;
u32 dw_eq_pg_cnt;
u32 dw_cq_pg_cnt;
u32 dw_mq_pg_cnt;
u32 dw_wq_pg_cnt;
u32 dw_rq_pg_cnt;
u32 dw_sgl_pg_cnt;
if (sli_cmd_common_get_sli4_parameters(sli4, sli4->bmbx.virt))
return -EIO;
parms = (struct sli4_rsp_cmn_get_sli4_params *)
(((u8 *)sli4->bmbx.virt) +
offsetof(struct sli4_cmd_sli_config, payload.embed));
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox write fail\n");
return -EIO;
}
if (parms->hdr.status) {
efc_log_err(sli4, "COMMON_GET_SLI4_PARAMETERS bad status %#x",
parms->hdr.status);
efc_log_err(sli4, "additional status %#x\n",
parms->hdr.additional_status);
return -EIO;
}
dw_loopback = le32_to_cpu(parms->dw16_loopback_scope);
dw_eq_pg_cnt = le32_to_cpu(parms->dw6_eq_page_cnt);
dw_cq_pg_cnt = le32_to_cpu(parms->dw8_cq_page_cnt);
dw_mq_pg_cnt = le32_to_cpu(parms->dw10_mq_page_cnt);
dw_wq_pg_cnt = le32_to_cpu(parms->dw12_wq_page_cnt);
dw_rq_pg_cnt = le32_to_cpu(parms->dw14_rq_page_cnt);
sli4->params.auto_reg = (dw_loopback & SLI4_PARAM_AREG);
sli4->params.auto_xfer_rdy = (dw_loopback & SLI4_PARAM_AGXF);
sli4->params.hdr_template_req = (dw_loopback & SLI4_PARAM_HDRR);
sli4->params.t10_dif_inline_capable = (dw_loopback & SLI4_PARAM_TIMM);
sli4->params.t10_dif_separate_capable = (dw_loopback & SLI4_PARAM_TSMM);
sli4->params.mq_create_version = GET_Q_CREATE_VERSION(dw_mq_pg_cnt);
sli4->params.cq_create_version = GET_Q_CREATE_VERSION(dw_cq_pg_cnt);
sli4->rq_min_buf_size = le16_to_cpu(parms->min_rq_buffer_size);
sli4->rq_max_buf_size = le32_to_cpu(parms->max_rq_buffer_size);
sli4->qinfo.qpage_count[SLI4_QTYPE_EQ] =
(dw_eq_pg_cnt & SLI4_PARAM_EQ_PAGE_CNT_MASK);
sli4->qinfo.qpage_count[SLI4_QTYPE_CQ] =
(dw_cq_pg_cnt & SLI4_PARAM_CQ_PAGE_CNT_MASK);
sli4->qinfo.qpage_count[SLI4_QTYPE_MQ] =
(dw_mq_pg_cnt & SLI4_PARAM_MQ_PAGE_CNT_MASK);
sli4->qinfo.qpage_count[SLI4_QTYPE_WQ] =
(dw_wq_pg_cnt & SLI4_PARAM_WQ_PAGE_CNT_MASK);
sli4->qinfo.qpage_count[SLI4_QTYPE_RQ] =
(dw_rq_pg_cnt & SLI4_PARAM_RQ_PAGE_CNT_MASK);
/* save count methods and masks for each queue type */
sli4->qinfo.count_mask[SLI4_QTYPE_EQ] =
le16_to_cpu(parms->eqe_count_mask);
sli4->qinfo.count_method[SLI4_QTYPE_EQ] =
GET_Q_CNT_METHOD(dw_eq_pg_cnt);
sli4->qinfo.count_mask[SLI4_QTYPE_CQ] =
le16_to_cpu(parms->cqe_count_mask);
sli4->qinfo.count_method[SLI4_QTYPE_CQ] =
GET_Q_CNT_METHOD(dw_cq_pg_cnt);
sli4->qinfo.count_mask[SLI4_QTYPE_MQ] =
le16_to_cpu(parms->mqe_count_mask);
sli4->qinfo.count_method[SLI4_QTYPE_MQ] =
GET_Q_CNT_METHOD(dw_mq_pg_cnt);
sli4->qinfo.count_mask[SLI4_QTYPE_WQ] =
le16_to_cpu(parms->wqe_count_mask);
sli4->qinfo.count_method[SLI4_QTYPE_WQ] =
GET_Q_CNT_METHOD(dw_wq_pg_cnt);
sli4->qinfo.count_mask[SLI4_QTYPE_RQ] =
le16_to_cpu(parms->rqe_count_mask);
sli4->qinfo.count_method[SLI4_QTYPE_RQ] =
GET_Q_CNT_METHOD(dw_rq_pg_cnt);
/* now calculate max queue entries */
sli_calc_max_qentries(sli4);
dw_sgl_pg_cnt = le32_to_cpu(parms->dw18_sgl_page_cnt);
/* max # of pages */
sli4->max_sgl_pages = (dw_sgl_pg_cnt & SLI4_PARAM_SGL_PAGE_CNT_MASK);
/* bit map of available sizes */
sli4->sgl_page_sizes = (dw_sgl_pg_cnt &
SLI4_PARAM_SGL_PAGE_SZS_MASK) >> 8;
/* ignore HLM here. Use value from REQUEST_FEATURES */
sli4->sge_supported_length = le32_to_cpu(parms->sge_supported_length);
sli4->params.sgl_pre_reg_required = (dw_loopback & SLI4_PARAM_SGLR);
/* default to using pre-registered SGL's */
sli4->params.sgl_pre_registered = true;
sli4->params.perf_hint = dw_loopback & SLI4_PARAM_PHON;
sli4->params.perf_wq_id_association = (dw_loopback & SLI4_PARAM_PHWQ);
sli4->rq_batch = (le16_to_cpu(parms->dw15w1_rq_db_window) &
SLI4_PARAM_RQ_DB_WINDOW_MASK) >> 12;
/* Use the highest available WQE size. */
if (((dw_wq_pg_cnt & SLI4_PARAM_WQE_SZS_MASK) >> 8) &
SLI4_128BYTE_WQE_SUPPORT)
sli4->wqe_size = SLI4_WQE_EXT_BYTES;
else
sli4->wqe_size = SLI4_WQE_BYTES;
return 0;
}
static int
sli_get_ctrl_attributes(struct sli4 *sli4)
{
struct sli4_rsp_cmn_get_cntl_attributes *attr;
struct sli4_rsp_cmn_get_cntl_addl_attributes *add_attr;
struct efc_dma data;
u32 psize;
/*
* Issue COMMON_GET_CNTL_ATTRIBUTES to get port_number. Temporarily
* uses VPD DMA buffer as the response won't fit in the embedded
* buffer.
*/
memset(sli4->vpd_data.virt, 0, sli4->vpd_data.size);
if (sli_cmd_common_get_cntl_attributes(sli4, sli4->bmbx.virt,
&sli4->vpd_data)) {
efc_log_err(sli4, "bad COMMON_GET_CNTL_ATTRIBUTES write\n");
return -EIO;
}
attr = sli4->vpd_data.virt;
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox write fail\n");
return -EIO;
}
if (attr->hdr.status) {
efc_log_err(sli4, "COMMON_GET_CNTL_ATTRIBUTES bad status %#x",
attr->hdr.status);
efc_log_err(sli4, "additional status %#x\n",
attr->hdr.additional_status);
return -EIO;
}
sli4->port_number = attr->port_num_type_flags & SLI4_CNTL_ATTR_PORTNUM;
memcpy(sli4->bios_version_string, attr->bios_version_str,
sizeof(sli4->bios_version_string));
/* get additional attributes */
psize = sizeof(struct sli4_rsp_cmn_get_cntl_addl_attributes);
data.size = psize;
data.virt = dma_alloc_coherent(&sli4->pci->dev, data.size,
&data.phys, GFP_KERNEL);
if (!data.virt) {
memset(&data, 0, sizeof(struct efc_dma));
efc_log_err(sli4, "Failed to allocate memory for GET_CNTL_ADDL_ATTR\n");
return -EIO;
}
if (sli_cmd_common_get_cntl_addl_attributes(sli4, sli4->bmbx.virt,
&data)) {
efc_log_err(sli4, "bad GET_CNTL_ADDL_ATTR write\n");
dma_free_coherent(&sli4->pci->dev, data.size,
data.virt, data.phys);
return -EIO;
}
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "mailbox fail (GET_CNTL_ADDL_ATTR)\n");
dma_free_coherent(&sli4->pci->dev, data.size,
data.virt, data.phys);
return -EIO;
}
add_attr = data.virt;
if (add_attr->hdr.status) {
efc_log_err(sli4, "GET_CNTL_ADDL_ATTR bad status %#x\n",
add_attr->hdr.status);
dma_free_coherent(&sli4->pci->dev, data.size,
data.virt, data.phys);
return -EIO;
}
memcpy(sli4->ipl_name, add_attr->ipl_file_name, sizeof(sli4->ipl_name));
efc_log_info(sli4, "IPL:%s\n", (char *)sli4->ipl_name);
dma_free_coherent(&sli4->pci->dev, data.size, data.virt,
data.phys);
memset(&data, 0, sizeof(struct efc_dma));
return 0;
}
static int
sli_get_fw_rev(struct sli4 *sli4)
{
struct sli4_cmd_read_rev *read_rev = sli4->bmbx.virt;
if (sli_cmd_read_rev(sli4, sli4->bmbx.virt, &sli4->vpd_data))
return -EIO;
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox write fail (READ_REV)\n");
return -EIO;
}
if (le16_to_cpu(read_rev->hdr.status)) {
efc_log_err(sli4, "READ_REV bad status %#x\n",
le16_to_cpu(read_rev->hdr.status));
return -EIO;
}
sli4->fw_rev[0] = le32_to_cpu(read_rev->first_fw_id);
memcpy(sli4->fw_name[0], read_rev->first_fw_name,
sizeof(sli4->fw_name[0]));
sli4->fw_rev[1] = le32_to_cpu(read_rev->second_fw_id);
memcpy(sli4->fw_name[1], read_rev->second_fw_name,
sizeof(sli4->fw_name[1]));
sli4->hw_rev[0] = le32_to_cpu(read_rev->first_hw_rev);
sli4->hw_rev[1] = le32_to_cpu(read_rev->second_hw_rev);
sli4->hw_rev[2] = le32_to_cpu(read_rev->third_hw_rev);
efc_log_info(sli4, "FW1:%s (%08x) / FW2:%s (%08x)\n",
read_rev->first_fw_name, le32_to_cpu(read_rev->first_fw_id),
read_rev->second_fw_name, le32_to_cpu(read_rev->second_fw_id));
efc_log_info(sli4, "HW1: %08x / HW2: %08x\n",
le32_to_cpu(read_rev->first_hw_rev),
le32_to_cpu(read_rev->second_hw_rev));
/* Check that all VPD data was returned */
if (le32_to_cpu(read_rev->returned_vpd_length) !=
le32_to_cpu(read_rev->actual_vpd_length)) {
efc_log_info(sli4, "VPD length: avail=%d return=%d actual=%d\n",
le32_to_cpu(read_rev->available_length_dword) &
SLI4_READ_REV_AVAILABLE_LENGTH,
le32_to_cpu(read_rev->returned_vpd_length),
le32_to_cpu(read_rev->actual_vpd_length));
}
sli4->vpd_length = le32_to_cpu(read_rev->returned_vpd_length);
return 0;
}
static int
sli_get_config(struct sli4 *sli4)
{
struct sli4_rsp_cmn_get_port_name *port_name;
struct sli4_cmd_read_nvparms *read_nvparms;
/*
* Read the device configuration
*/
if (sli_get_read_config(sli4))
return -EIO;
if (sli_get_sli4_parameters(sli4))
return -EIO;
if (sli_get_ctrl_attributes(sli4))
return -EIO;
if (sli_cmd_common_get_port_name(sli4, sli4->bmbx.virt))
return -EIO;
port_name = (struct sli4_rsp_cmn_get_port_name *)
(((u8 *)sli4->bmbx.virt) +
offsetof(struct sli4_cmd_sli_config, payload.embed));
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox fail (GET_PORT_NAME)\n");
return -EIO;
}
sli4->port_name[0] = port_name->port_name[sli4->port_number];
sli4->port_name[1] = '\0';
if (sli_get_fw_rev(sli4))
return -EIO;
if (sli_cmd_read_nvparms(sli4, sli4->bmbx.virt)) {
efc_log_err(sli4, "bad READ_NVPARMS write\n");
return -EIO;
}
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox fail (READ_NVPARMS)\n");
return -EIO;
}
read_nvparms = sli4->bmbx.virt;
if (le16_to_cpu(read_nvparms->hdr.status)) {
efc_log_err(sli4, "READ_NVPARMS bad status %#x\n",
le16_to_cpu(read_nvparms->hdr.status));
return -EIO;
}
memcpy(sli4->wwpn, read_nvparms->wwpn, sizeof(sli4->wwpn));
memcpy(sli4->wwnn, read_nvparms->wwnn, sizeof(sli4->wwnn));
efc_log_info(sli4, "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
sli4->wwpn[0], sli4->wwpn[1], sli4->wwpn[2], sli4->wwpn[3],
sli4->wwpn[4], sli4->wwpn[5], sli4->wwpn[6], sli4->wwpn[7]);
efc_log_info(sli4, "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
sli4->wwnn[0], sli4->wwnn[1], sli4->wwnn[2], sli4->wwnn[3],
sli4->wwnn[4], sli4->wwnn[5], sli4->wwnn[6], sli4->wwnn[7]);
return 0;
}
int
sli_setup(struct sli4 *sli4, void *os, struct pci_dev *pdev,
void __iomem *reg[])
{
u32 intf = U32_MAX;
u32 pci_class_rev = 0;
u32 rev_id = 0;
u32 family = 0;
u32 asic_id = 0;
u32 i;
struct sli4_asic_entry_t *asic;
memset(sli4, 0, sizeof(struct sli4));
sli4->os = os;
sli4->pci = pdev;
for (i = 0; i < 6; i++)
sli4->reg[i] = reg[i];
/*
* Read the SLI_INTF register to discover the register layout
* and other capability information
*/
if (pci_read_config_dword(pdev, SLI4_INTF_REG, &intf))
return -EIO;
if ((intf & SLI4_INTF_VALID_MASK) != (u32)SLI4_INTF_VALID_VALUE) {
efc_log_err(sli4, "SLI_INTF is not valid\n");
return -EIO;
}
/* driver only support SLI-4 */
if ((intf & SLI4_INTF_REV_MASK) != SLI4_INTF_REV_S4) {
efc_log_err(sli4, "Unsupported SLI revision (intf=%#x)\n", intf);
return -EIO;
}
sli4->sli_family = intf & SLI4_INTF_FAMILY_MASK;
sli4->if_type = intf & SLI4_INTF_IF_TYPE_MASK;
efc_log_info(sli4, "status=%#x error1=%#x error2=%#x\n",
sli_reg_read_status(sli4),
sli_reg_read_err1(sli4),
sli_reg_read_err2(sli4));
/*
* set the ASIC type and revision
*/
if (pci_read_config_dword(pdev, PCI_CLASS_REVISION, &pci_class_rev))
return -EIO;
rev_id = pci_class_rev & 0xff;
family = sli4->sli_family;
if (family == SLI4_FAMILY_CHECK_ASIC_TYPE) {
if (!pci_read_config_dword(pdev, SLI4_ASIC_ID_REG, &asic_id))
family = asic_id & SLI4_ASIC_GEN_MASK;
}
for (i = 0, asic = sli4_asic_table; i < ARRAY_SIZE(sli4_asic_table);
i++, asic++) {
if (rev_id == asic->rev_id && family == asic->family) {
sli4->asic_type = family;
sli4->asic_rev = rev_id;
break;
}
}
/* Fail if no matching asic type/rev was found */
if (!sli4->asic_type) {
efc_log_err(sli4, "no matching asic family/rev found: %02x/%02x\n",
family, rev_id);
return -EIO;
}
/*
* The bootstrap mailbox is equivalent to a MQ with a single 256 byte
* entry, a CQ with a single 16 byte entry, and no event queue.
* Alignment must be 16 bytes as the low order address bits in the
* address register are also control / status.
*/
sli4->bmbx.size = SLI4_BMBX_SIZE + sizeof(struct sli4_mcqe);
sli4->bmbx.virt = dma_alloc_coherent(&pdev->dev, sli4->bmbx.size,
&sli4->bmbx.phys, GFP_KERNEL);
if (!sli4->bmbx.virt) {
memset(&sli4->bmbx, 0, sizeof(struct efc_dma));
efc_log_err(sli4, "bootstrap mailbox allocation failed\n");
return -EIO;
}
if (sli4->bmbx.phys & SLI4_BMBX_MASK_LO) {
efc_log_err(sli4, "bad alignment for bootstrap mailbox\n");
return -EIO;
}
efc_log_info(sli4, "bmbx v=%p p=0x%x %08x s=%zd\n", sli4->bmbx.virt,
upper_32_bits(sli4->bmbx.phys),
lower_32_bits(sli4->bmbx.phys), sli4->bmbx.size);
/* 4096 is arbitrary. What should this value actually be? */
sli4->vpd_data.size = 4096;
sli4->vpd_data.virt = dma_alloc_coherent(&pdev->dev,
sli4->vpd_data.size,
&sli4->vpd_data.phys,
GFP_KERNEL);
if (!sli4->vpd_data.virt) {
memset(&sli4->vpd_data, 0, sizeof(struct efc_dma));
/* Note that failure isn't fatal in this specific case */
efc_log_info(sli4, "VPD buffer allocation failed\n");
}
if (!sli_fw_init(sli4)) {
efc_log_err(sli4, "FW initialization failed\n");
return -EIO;
}
/*
* Set one of fcpi(initiator), fcpt(target), fcpc(combined) to true
* in addition to any other desired features
*/
sli4->features = (SLI4_REQFEAT_IAAB | SLI4_REQFEAT_NPIV |
SLI4_REQFEAT_DIF | SLI4_REQFEAT_VF |
SLI4_REQFEAT_FCPC | SLI4_REQFEAT_IAAR |
SLI4_REQFEAT_HLM | SLI4_REQFEAT_PERFH |
SLI4_REQFEAT_RXSEQ | SLI4_REQFEAT_RXRI |
SLI4_REQFEAT_MRQP);
/* use performance hints if available */
if (sli4->params.perf_hint)
sli4->features |= SLI4_REQFEAT_PERFH;
if (sli_request_features(sli4, &sli4->features, true))
return -EIO;
if (sli_get_config(sli4))
return -EIO;
return 0;
}
int
sli_init(struct sli4 *sli4)
{
if (sli4->params.has_extents) {
efc_log_info(sli4, "extend allocation not supported\n");
return -EIO;
}
sli4->features &= (~SLI4_REQFEAT_HLM);
sli4->features &= (~SLI4_REQFEAT_RXSEQ);
sli4->features &= (~SLI4_REQFEAT_RXRI);
if (sli_request_features(sli4, &sli4->features, false))
return -EIO;
return 0;
}
int
sli_reset(struct sli4 *sli4)
{
u32 i;
if (!sli_fw_init(sli4)) {
efc_log_crit(sli4, "FW initialization failed\n");
return -EIO;
}
kfree(sli4->ext[0].base);
sli4->ext[0].base = NULL;
for (i = 0; i < SLI4_RSRC_MAX; i++) {
bitmap_free(sli4->ext[i].use_map);
sli4->ext[i].use_map = NULL;
sli4->ext[i].base = NULL;
}
return sli_get_config(sli4);
}
int
sli_fw_reset(struct sli4 *sli4)
{
/*
* Firmware must be ready before issuing the reset.
*/
if (!sli_wait_for_fw_ready(sli4, SLI4_FW_READY_TIMEOUT_MSEC)) {
efc_log_crit(sli4, "FW status is NOT ready\n");
return -EIO;
}
/* Lancer uses PHYDEV_CONTROL */
writel(SLI4_PHYDEV_CTRL_FRST, (sli4->reg[0] + SLI4_PHYDEV_CTRL_REG));
/* wait for the FW to become ready after the reset */
if (!sli_wait_for_fw_ready(sli4, SLI4_FW_READY_TIMEOUT_MSEC)) {
efc_log_crit(sli4, "Failed to be ready after firmware reset\n");
return -EIO;
}
return 0;
}
void
sli_teardown(struct sli4 *sli4)
{
u32 i;
kfree(sli4->ext[0].base);
sli4->ext[0].base = NULL;
for (i = 0; i < SLI4_RSRC_MAX; i++) {
sli4->ext[i].base = NULL;
bitmap_free(sli4->ext[i].use_map);
sli4->ext[i].use_map = NULL;
}
if (!sli_sliport_reset(sli4))
efc_log_err(sli4, "FW deinitialization failed\n");
dma_free_coherent(&sli4->pci->dev, sli4->vpd_data.size,
sli4->vpd_data.virt, sli4->vpd_data.phys);
memset(&sli4->vpd_data, 0, sizeof(struct efc_dma));
dma_free_coherent(&sli4->pci->dev, sli4->bmbx.size,
sli4->bmbx.virt, sli4->bmbx.phys);
memset(&sli4->bmbx, 0, sizeof(struct efc_dma));
}
int
sli_callback(struct sli4 *sli4, enum sli4_callback which,
void *func, void *arg)
{
if (!func) {
efc_log_err(sli4, "bad parameter sli4=%p which=%#x func=%p\n",
sli4, which, func);
return -EIO;
}
switch (which) {
case SLI4_CB_LINK:
sli4->link = func;
sli4->link_arg = arg;
break;
default:
efc_log_info(sli4, "unknown callback %#x\n", which);
return -EIO;
}
return 0;
}
int
sli_eq_modify_delay(struct sli4 *sli4, struct sli4_queue *eq,
u32 num_eq, u32 shift, u32 delay_mult)
{
sli_cmd_common_modify_eq_delay(sli4, sli4->bmbx.virt, eq, num_eq,
shift, delay_mult);
if (sli_bmbx_command(sli4)) {
efc_log_crit(sli4, "bootstrap mailbox write fail (MODIFY EQ DELAY)\n");
return -EIO;
}
if (sli_res_sli_config(sli4, sli4->bmbx.virt)) {
efc_log_err(sli4, "bad status MODIFY EQ DELAY\n");
return -EIO;
}
return 0;
}
int
sli_resource_alloc(struct sli4 *sli4, enum sli4_resource rtype,
u32 *rid, u32 *index)
{
int rc = 0;
u32 size;
u32 ext_idx;
u32 item_idx;
u32 position;
*rid = U32_MAX;
*index = U32_MAX;
switch (rtype) {
case SLI4_RSRC_VFI:
case SLI4_RSRC_VPI:
case SLI4_RSRC_RPI:
case SLI4_RSRC_XRI:
position =
find_first_zero_bit(sli4->ext[rtype].use_map,
sli4->ext[rtype].map_size);
if (position >= sli4->ext[rtype].map_size) {
efc_log_err(sli4, "out of resource %d (alloc=%d)\n",
rtype, sli4->ext[rtype].n_alloc);
rc = -EIO;
break;
}
set_bit(position, sli4->ext[rtype].use_map);
*index = position;
size = sli4->ext[rtype].size;
ext_idx = *index / size;
item_idx = *index % size;
*rid = sli4->ext[rtype].base[ext_idx] + item_idx;
sli4->ext[rtype].n_alloc++;
break;
default:
rc = -EIO;
}
return rc;
}
int
sli_resource_free(struct sli4 *sli4, enum sli4_resource rtype, u32 rid)
{
int rc = -EIO;
u32 x;
u32 size, *base;
switch (rtype) {
case SLI4_RSRC_VFI:
case SLI4_RSRC_VPI:
case SLI4_RSRC_RPI:
case SLI4_RSRC_XRI:
/*
* Figure out which extent contains the resource ID. I.e. find
* the extent such that
* extent->base <= resource ID < extent->base + extent->size
*/
base = sli4->ext[rtype].base;
size = sli4->ext[rtype].size;
/*
* In the case of FW reset, this may be cleared
* but the force_free path will still attempt to
* free the resource. Prevent a NULL pointer access.
*/
if (!base)
break;
for (x = 0; x < sli4->ext[rtype].number; x++) {
if ((rid < base[x] || (rid >= (base[x] + size))))
continue;
rid -= base[x];
clear_bit((x * size) + rid, sli4->ext[rtype].use_map);
rc = 0;
break;
}
break;
default:
break;
}
return rc;
}
int
sli_resource_reset(struct sli4 *sli4, enum sli4_resource rtype)
{
int rc = -EIO;
u32 i;
switch (rtype) {
case SLI4_RSRC_VFI:
case SLI4_RSRC_VPI:
case SLI4_RSRC_RPI:
case SLI4_RSRC_XRI:
for (i = 0; i < sli4->ext[rtype].map_size; i++)
clear_bit(i, sli4->ext[rtype].use_map);
rc = 0;
break;
default:
break;
}
return rc;
}
int sli_raise_ue(struct sli4 *sli4, u8 dump)
{
u32 val = 0;
if (dump == SLI4_FUNC_DESC_DUMP) {
val = SLI4_PORT_CTRL_FDD | SLI4_PORT_CTRL_IP;
writel(val, (sli4->reg[0] + SLI4_PORT_CTRL_REG));
} else {
val = SLI4_PHYDEV_CTRL_FRST;
if (dump == SLI4_CHIP_LEVEL_DUMP)
val |= SLI4_PHYDEV_CTRL_DD;
writel(val, (sli4->reg[0] + SLI4_PHYDEV_CTRL_REG));
}
return 0;
}
int sli_dump_is_ready(struct sli4 *sli4)
{
int rc = SLI4_DUMP_READY_STATUS_NOT_READY;
u32 port_val;
u32 bmbx_val;
/*
* Ensure that the port is ready AND the mailbox is
* ready before signaling that the dump is ready to go.
*/
port_val = sli_reg_read_status(sli4);
bmbx_val = readl(sli4->reg[0] + SLI4_BMBX_REG);
if ((bmbx_val & SLI4_BMBX_RDY) &&
(port_val & SLI4_PORT_STATUS_RDY)) {
if (port_val & SLI4_PORT_STATUS_DIP)
rc = SLI4_DUMP_READY_STATUS_DD_PRESENT;
else if (port_val & SLI4_PORT_STATUS_FDP)
rc = SLI4_DUMP_READY_STATUS_FDB_PRESENT;
}
return rc;
}
bool sli_reset_required(struct sli4 *sli4)
{
u32 val;
val = sli_reg_read_status(sli4);
return (val & SLI4_PORT_STATUS_RN);
}
int
sli_cmd_post_sgl_pages(struct sli4 *sli4, void *buf, u16 xri,
u32 xri_count, struct efc_dma *page0[],
struct efc_dma *page1[], struct efc_dma *dma)
{
struct sli4_rqst_post_sgl_pages *post = NULL;
u32 i;
__le32 req_len;
post = sli_config_cmd_init(sli4, buf,
SLI4_CFG_PYLD_LENGTH(post_sgl_pages), dma);
if (!post)
return -EIO;
/* payload size calculation */
/* 4 = xri_start + xri_count */
/* xri_count = # of XRI's registered */
/* sizeof(uint64_t) = physical address size */
/* 2 = # of physical addresses per page set */
req_len = cpu_to_le32(4 + (xri_count * (sizeof(uint64_t) * 2)));
sli_cmd_fill_hdr(&post->hdr, SLI4_OPC_POST_SGL_PAGES, SLI4_SUBSYSTEM_FC,
CMD_V0, req_len);
post->xri_start = cpu_to_le16(xri);
post->xri_count = cpu_to_le16(xri_count);
for (i = 0; i < xri_count; i++) {
post->page_set[i].page0_low =
cpu_to_le32(lower_32_bits(page0[i]->phys));
post->page_set[i].page0_high =
cpu_to_le32(upper_32_bits(page0[i]->phys));
}
if (page1) {
for (i = 0; i < xri_count; i++) {
post->page_set[i].page1_low =
cpu_to_le32(lower_32_bits(page1[i]->phys));
post->page_set[i].page1_high =
cpu_to_le32(upper_32_bits(page1[i]->phys));
}
}
return 0;
}
int
sli_cmd_post_hdr_templates(struct sli4 *sli4, void *buf, struct efc_dma *dma,
u16 rpi, struct efc_dma *payload_dma)
{
struct sli4_rqst_post_hdr_templates *req = NULL;
uintptr_t phys = 0;
u32 i = 0;
u32 page_count, payload_size;
page_count = sli_page_count(dma->size, SLI_PAGE_SIZE);
payload_size = ((sizeof(struct sli4_rqst_post_hdr_templates) +
(page_count * SZ_DMAADDR)) - sizeof(struct sli4_rqst_hdr));
if (page_count > 16) {
/*
* We can't fit more than 16 descriptors into an embedded mbox
* command, it has to be non-embedded
*/
payload_dma->size = payload_size;
payload_dma->virt = dma_alloc_coherent(&sli4->pci->dev,
payload_dma->size,
&payload_dma->phys, GFP_KERNEL);
if (!payload_dma->virt) {
memset(payload_dma, 0, sizeof(struct efc_dma));
efc_log_err(sli4, "mbox payload memory allocation fail\n");
return -EIO;
}
req = sli_config_cmd_init(sli4, buf, payload_size, payload_dma);
} else {
req = sli_config_cmd_init(sli4, buf, payload_size, NULL);
}
if (!req)
return -EIO;
if (rpi == U16_MAX)
rpi = sli4->ext[SLI4_RSRC_RPI].base[0];
sli_cmd_fill_hdr(&req->hdr, SLI4_OPC_POST_HDR_TEMPLATES,
SLI4_SUBSYSTEM_FC, CMD_V0,
SLI4_RQST_PYLD_LEN(post_hdr_templates));
req->rpi_offset = cpu_to_le16(rpi);
req->page_count = cpu_to_le16(page_count);
phys = dma->phys;
for (i = 0; i < page_count; i++) {
req->page_descriptor[i].low = cpu_to_le32(lower_32_bits(phys));
req->page_descriptor[i].high = cpu_to_le32(upper_32_bits(phys));
phys += SLI_PAGE_SIZE;
}
return 0;
}
u32
sli_fc_get_rpi_requirements(struct sli4 *sli4, u32 n_rpi)
{
u32 bytes = 0;
/* Check if header templates needed */
if (sli4->params.hdr_template_req)
/* round up to a page */
bytes = round_up(n_rpi * SLI4_HDR_TEMPLATE_SIZE, SLI_PAGE_SIZE);
return bytes;
}
const char *
sli_fc_get_status_string(u32 status)
{
static struct {
u32 code;
const char *label;
} lookup[] = {
{SLI4_FC_WCQE_STATUS_SUCCESS, "SUCCESS"},
{SLI4_FC_WCQE_STATUS_FCP_RSP_FAILURE, "FCP_RSP_FAILURE"},
{SLI4_FC_WCQE_STATUS_REMOTE_STOP, "REMOTE_STOP"},
{SLI4_FC_WCQE_STATUS_LOCAL_REJECT, "LOCAL_REJECT"},
{SLI4_FC_WCQE_STATUS_NPORT_RJT, "NPORT_RJT"},
{SLI4_FC_WCQE_STATUS_FABRIC_RJT, "FABRIC_RJT"},
{SLI4_FC_WCQE_STATUS_NPORT_BSY, "NPORT_BSY"},
{SLI4_FC_WCQE_STATUS_FABRIC_BSY, "FABRIC_BSY"},
{SLI4_FC_WCQE_STATUS_LS_RJT, "LS_RJT"},
{SLI4_FC_WCQE_STATUS_CMD_REJECT, "CMD_REJECT"},
{SLI4_FC_WCQE_STATUS_FCP_TGT_LENCHECK, "FCP_TGT_LENCHECK"},
{SLI4_FC_WCQE_STATUS_RQ_BUF_LEN_EXCEEDED, "BUF_LEN_EXCEEDED"},
{SLI4_FC_WCQE_STATUS_RQ_INSUFF_BUF_NEEDED,
"RQ_INSUFF_BUF_NEEDED"},
{SLI4_FC_WCQE_STATUS_RQ_INSUFF_FRM_DISC, "RQ_INSUFF_FRM_DESC"},
{SLI4_FC_WCQE_STATUS_RQ_DMA_FAILURE, "RQ_DMA_FAILURE"},
{SLI4_FC_WCQE_STATUS_FCP_RSP_TRUNCATE, "FCP_RSP_TRUNCATE"},
{SLI4_FC_WCQE_STATUS_DI_ERROR, "DI_ERROR"},
{SLI4_FC_WCQE_STATUS_BA_RJT, "BA_RJT"},
{SLI4_FC_WCQE_STATUS_RQ_INSUFF_XRI_NEEDED,
"RQ_INSUFF_XRI_NEEDED"},
{SLI4_FC_WCQE_STATUS_RQ_INSUFF_XRI_DISC, "INSUFF_XRI_DISC"},
{SLI4_FC_WCQE_STATUS_RX_ERROR_DETECT, "RX_ERROR_DETECT"},
{SLI4_FC_WCQE_STATUS_RX_ABORT_REQUEST, "RX_ABORT_REQUEST"},
};
u32 i;
for (i = 0; i < ARRAY_SIZE(lookup); i++) {
if (status == lookup[i].code)
return lookup[i].label;
}
return "unknown";
}
|
linux-master
|
drivers/scsi/elx/libefc_sli/sli4.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include "qla_def.h"
#include "qla_gbl.h"
#define TIMEOUT_100_MS 100
static const uint32_t qla8044_reg_tbl[] = {
QLA8044_PEG_HALT_STATUS1,
QLA8044_PEG_HALT_STATUS2,
QLA8044_PEG_ALIVE_COUNTER,
QLA8044_CRB_DRV_ACTIVE,
QLA8044_CRB_DEV_STATE,
QLA8044_CRB_DRV_STATE,
QLA8044_CRB_DRV_SCRATCH,
QLA8044_CRB_DEV_PART_INFO1,
QLA8044_CRB_IDC_VER_MAJOR,
QLA8044_FW_VER_MAJOR,
QLA8044_FW_VER_MINOR,
QLA8044_FW_VER_SUB,
QLA8044_CMDPEG_STATE,
QLA8044_ASIC_TEMP,
};
/* 8044 Flash Read/Write functions */
uint32_t
qla8044_rd_reg(struct qla_hw_data *ha, ulong addr)
{
return readl((void __iomem *) (ha->nx_pcibase + addr));
}
void
qla8044_wr_reg(struct qla_hw_data *ha, ulong addr, uint32_t val)
{
writel(val, (void __iomem *)((ha)->nx_pcibase + addr));
}
int
qla8044_rd_direct(struct scsi_qla_host *vha,
const uint32_t crb_reg)
{
struct qla_hw_data *ha = vha->hw;
if (crb_reg < CRB_REG_INDEX_MAX)
return qla8044_rd_reg(ha, qla8044_reg_tbl[crb_reg]);
else
return QLA_FUNCTION_FAILED;
}
void
qla8044_wr_direct(struct scsi_qla_host *vha,
const uint32_t crb_reg,
const uint32_t value)
{
struct qla_hw_data *ha = vha->hw;
if (crb_reg < CRB_REG_INDEX_MAX)
qla8044_wr_reg(ha, qla8044_reg_tbl[crb_reg], value);
}
static int
qla8044_set_win_base(scsi_qla_host_t *vha, uint32_t addr)
{
uint32_t val;
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
qla8044_wr_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum), addr);
val = qla8044_rd_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum));
if (val != addr) {
ql_log(ql_log_warn, vha, 0xb087,
"%s: Failed to set register window : "
"addr written 0x%x, read 0x%x!\n",
__func__, addr, val);
ret_val = QLA_FUNCTION_FAILED;
}
return ret_val;
}
static int
qla8044_rd_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data)
{
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
ret_val = qla8044_set_win_base(vha, addr);
if (!ret_val)
*data = qla8044_rd_reg(ha, QLA8044_WILDCARD);
else
ql_log(ql_log_warn, vha, 0xb088,
"%s: failed read of addr 0x%x!\n", __func__, addr);
return ret_val;
}
static int
qla8044_wr_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t data)
{
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
ret_val = qla8044_set_win_base(vha, addr);
if (!ret_val)
qla8044_wr_reg(ha, QLA8044_WILDCARD, data);
else
ql_log(ql_log_warn, vha, 0xb089,
"%s: failed wrt to addr 0x%x, data 0x%x\n",
__func__, addr, data);
return ret_val;
}
/*
* qla8044_read_write_crb_reg - Read from raddr and write value to waddr.
*
* @ha : Pointer to adapter structure
* @raddr : CRB address to read from
* @waddr : CRB address to write to
*
*/
static void
qla8044_read_write_crb_reg(struct scsi_qla_host *vha,
uint32_t raddr, uint32_t waddr)
{
uint32_t value;
qla8044_rd_reg_indirect(vha, raddr, &value);
qla8044_wr_reg_indirect(vha, waddr, value);
}
static int
qla8044_poll_wait_for_ready(struct scsi_qla_host *vha, uint32_t addr1,
uint32_t mask)
{
unsigned long timeout;
uint32_t temp = 0;
/* jiffies after 100ms */
timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
do {
qla8044_rd_reg_indirect(vha, addr1, &temp);
if ((temp & mask) != 0)
break;
if (time_after_eq(jiffies, timeout)) {
ql_log(ql_log_warn, vha, 0xb151,
"Error in processing rdmdio entry\n");
return -1;
}
} while (1);
return 0;
}
static uint32_t
qla8044_ipmdio_rd_reg(struct scsi_qla_host *vha,
uint32_t addr1, uint32_t addr3, uint32_t mask, uint32_t addr)
{
uint32_t temp;
int ret = 0;
ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
if (ret == -1)
return -1;
temp = (0x40000000 | addr);
qla8044_wr_reg_indirect(vha, addr1, temp);
ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
if (ret == -1)
return 0;
qla8044_rd_reg_indirect(vha, addr3, &ret);
return ret;
}
static int
qla8044_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *vha,
uint32_t addr1, uint32_t addr2, uint32_t addr3, uint32_t mask)
{
unsigned long timeout;
uint32_t temp;
/* jiffies after 100 msecs */
timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
do {
temp = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr2);
if ((temp & 0x1) != 1)
break;
if (time_after_eq(jiffies, timeout)) {
ql_log(ql_log_warn, vha, 0xb152,
"Error in processing mdiobus idle\n");
return -1;
}
} while (1);
return 0;
}
static int
qla8044_ipmdio_wr_reg(struct scsi_qla_host *vha, uint32_t addr1,
uint32_t addr3, uint32_t mask, uint32_t addr, uint32_t value)
{
int ret = 0;
ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
if (ret == -1)
return -1;
qla8044_wr_reg_indirect(vha, addr3, value);
qla8044_wr_reg_indirect(vha, addr1, addr);
ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
if (ret == -1)
return -1;
return 0;
}
/*
* qla8044_rmw_crb_reg - Read value from raddr, AND with test_mask,
* Shift Left,Right/OR/XOR with values RMW header and write value to waddr.
*
* @vha : Pointer to adapter structure
* @raddr : CRB address to read from
* @waddr : CRB address to write to
* @p_rmw_hdr : header with shift/or/xor values.
*
*/
static void
qla8044_rmw_crb_reg(struct scsi_qla_host *vha,
uint32_t raddr, uint32_t waddr, struct qla8044_rmw *p_rmw_hdr)
{
uint32_t value;
if (p_rmw_hdr->index_a)
value = vha->reset_tmplt.array[p_rmw_hdr->index_a];
else
qla8044_rd_reg_indirect(vha, raddr, &value);
value &= p_rmw_hdr->test_mask;
value <<= p_rmw_hdr->shl;
value >>= p_rmw_hdr->shr;
value |= p_rmw_hdr->or_value;
value ^= p_rmw_hdr->xor_value;
qla8044_wr_reg_indirect(vha, waddr, value);
return;
}
static inline void
qla8044_set_qsnt_ready(struct scsi_qla_host *vha)
{
uint32_t qsnt_state;
struct qla_hw_data *ha = vha->hw;
qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
qsnt_state |= (1 << ha->portnum);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
ql_log(ql_log_info, vha, 0xb08e, "%s(%ld): qsnt_state: 0x%08x\n",
__func__, vha->host_no, qsnt_state);
}
void
qla8044_clear_qsnt_ready(struct scsi_qla_host *vha)
{
uint32_t qsnt_state;
struct qla_hw_data *ha = vha->hw;
qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
qsnt_state &= ~(1 << ha->portnum);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
ql_log(ql_log_info, vha, 0xb08f, "%s(%ld): qsnt_state: 0x%08x\n",
__func__, vha->host_no, qsnt_state);
}
/**
* qla8044_lock_recovery - Recovers the idc_lock.
* @vha : Pointer to adapter structure
*
* Lock Recovery Register
* 5-2 Lock recovery owner: Function ID of driver doing lock recovery,
* valid if bits 1..0 are set by driver doing lock recovery.
* 1-0 1 - Driver intends to force unlock the IDC lock.
* 2 - Driver is moving forward to unlock the IDC lock. Driver clears
* this field after force unlocking the IDC lock.
*
* Lock Recovery process
* a. Read the IDC_LOCK_RECOVERY register. If the value in bits 1..0 is
* greater than 0, then wait for the other driver to unlock otherwise
* move to the next step.
* b. Indicate intent to force-unlock by writing 1h to the IDC_LOCK_RECOVERY
* register bits 1..0 and also set the function# in bits 5..2.
* c. Read the IDC_LOCK_RECOVERY register again after a delay of 200ms.
* Wait for the other driver to perform lock recovery if the function
* number in bits 5..2 has changed, otherwise move to the next step.
* d. Write a value of 2h to the IDC_LOCK_RECOVERY register bits 1..0
* leaving your function# in bits 5..2.
* e. Force unlock using the DRIVER_UNLOCK register and immediately clear
* the IDC_LOCK_RECOVERY bits 5..0 by writing 0.
**/
static int
qla8044_lock_recovery(struct scsi_qla_host *vha)
{
uint32_t lock = 0, lockid;
struct qla_hw_data *ha = vha->hw;
lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
/* Check for other Recovery in progress, go wait */
if ((lockid & IDC_LOCK_RECOVERY_STATE_MASK) != 0)
return QLA_FUNCTION_FAILED;
/* Intent to Recover */
qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
(ha->portnum <<
IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | INTENT_TO_RECOVER);
msleep(200);
/* Check Intent to Recover is advertised */
lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
if ((lockid & IDC_LOCK_RECOVERY_OWNER_MASK) != (ha->portnum <<
IDC_LOCK_RECOVERY_STATE_SHIFT_BITS))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_p3p, vha, 0xb08B, "%s:%d: IDC Lock recovery initiated\n"
, __func__, ha->portnum);
/* Proceed to Recover */
qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
(ha->portnum << IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) |
PROCEED_TO_RECOVER);
/* Force Unlock() */
qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, 0xFF);
qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
/* Clear bits 0-5 in IDC_RECOVERY register*/
qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 0);
/* Get lock() */
lock = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
if (lock) {
lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->portnum;
qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lockid);
return QLA_SUCCESS;
} else
return QLA_FUNCTION_FAILED;
}
int
qla8044_idc_lock(struct qla_hw_data *ha)
{
uint32_t ret_val = QLA_SUCCESS, timeout = 0, status = 0;
uint32_t lock_id, lock_cnt, func_num, tmo_owner = 0, first_owner = 0;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
while (status == 0) {
/* acquire semaphore5 from PCI HW block */
status = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
if (status) {
/* Increment Counter (8-31) and update func_num (0-7) on
* getting a successful lock */
lock_id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->portnum;
qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lock_id);
break;
}
if (timeout == 0)
first_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
if (++timeout >=
(QLA8044_DRV_LOCK_TIMEOUT / QLA8044_DRV_LOCK_MSLEEP)) {
tmo_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
func_num = tmo_owner & 0xFF;
lock_cnt = tmo_owner >> 8;
ql_log(ql_log_warn, vha, 0xb114,
"%s: Lock by func %d failed after 2s, lock held "
"by func %d, lock count %d, first_owner %d\n",
__func__, ha->portnum, func_num, lock_cnt,
(first_owner & 0xFF));
if (first_owner != tmo_owner) {
/* Some other driver got lock,
* OR same driver got lock again (counter
* value changed), when we were waiting for
* lock. Retry for another 2 sec */
ql_dbg(ql_dbg_p3p, vha, 0xb115,
"%s: %d: IDC lock failed\n",
__func__, ha->portnum);
timeout = 0;
} else {
/* Same driver holding lock > 2sec.
* Force Recovery */
if (qla8044_lock_recovery(vha) == QLA_SUCCESS) {
/* Recovered and got lock */
ret_val = QLA_SUCCESS;
ql_dbg(ql_dbg_p3p, vha, 0xb116,
"%s:IDC lock Recovery by %d"
"successful...\n", __func__,
ha->portnum);
}
/* Recovery Failed, some other function
* has the lock, wait for 2secs
* and retry
*/
ql_dbg(ql_dbg_p3p, vha, 0xb08a,
"%s: IDC lock Recovery by %d "
"failed, Retrying timeout\n", __func__,
ha->portnum);
timeout = 0;
}
}
msleep(QLA8044_DRV_LOCK_MSLEEP);
}
return ret_val;
}
void
qla8044_idc_unlock(struct qla_hw_data *ha)
{
int id;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
if ((id & 0xFF) != ha->portnum) {
ql_log(ql_log_warn, vha, 0xb118,
"%s: IDC Unlock by %d failed, lock owner is %d!\n",
__func__, ha->portnum, (id & 0xFF));
return;
}
/* Keep lock counter value, update the ha->func_num to 0xFF */
qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, (id | 0xFF));
qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
}
/* 8044 Flash Lock/Unlock functions */
static int
qla8044_flash_lock(scsi_qla_host_t *vha)
{
int lock_owner;
int timeout = 0;
uint32_t lock_status = 0;
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
while (lock_status == 0) {
lock_status = qla8044_rd_reg(ha, QLA8044_FLASH_LOCK);
if (lock_status)
break;
if (++timeout >= QLA8044_FLASH_LOCK_TIMEOUT / 20) {
lock_owner = qla8044_rd_reg(ha,
QLA8044_FLASH_LOCK_ID);
ql_log(ql_log_warn, vha, 0xb113,
"%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
__func__, ha->portnum, lock_owner);
ret_val = QLA_FUNCTION_FAILED;
break;
}
msleep(20);
}
qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, ha->portnum);
return ret_val;
}
static void
qla8044_flash_unlock(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
/* Reading FLASH_UNLOCK register unlocks the Flash */
qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF);
qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK);
}
static
void qla8044_flash_lock_recovery(struct scsi_qla_host *vha)
{
if (qla8044_flash_lock(vha)) {
/* Someone else is holding the lock. */
ql_log(ql_log_warn, vha, 0xb120, "Resetting flash_lock\n");
}
/*
* Either we got the lock, or someone
* else died while holding it.
* In either case, unlock.
*/
qla8044_flash_unlock(vha);
}
/*
* Address and length are byte address
*/
static int
qla8044_read_flash_data(scsi_qla_host_t *vha, uint8_t *p_data,
uint32_t flash_addr, int u32_word_count)
{
int i, ret_val = QLA_SUCCESS;
uint32_t u32_word;
if (qla8044_flash_lock(vha) != QLA_SUCCESS) {
ret_val = QLA_FUNCTION_FAILED;
goto exit_lock_error;
}
if (flash_addr & 0x03) {
ql_log(ql_log_warn, vha, 0xb117,
"%s: Illegal addr = 0x%x\n", __func__, flash_addr);
ret_val = QLA_FUNCTION_FAILED;
goto exit_flash_read;
}
for (i = 0; i < u32_word_count; i++) {
if (qla8044_wr_reg_indirect(vha, QLA8044_FLASH_DIRECT_WINDOW,
(flash_addr & 0xFFFF0000))) {
ql_log(ql_log_warn, vha, 0xb119,
"%s: failed to write addr 0x%x to "
"FLASH_DIRECT_WINDOW\n! ",
__func__, flash_addr);
ret_val = QLA_FUNCTION_FAILED;
goto exit_flash_read;
}
ret_val = qla8044_rd_reg_indirect(vha,
QLA8044_FLASH_DIRECT_DATA(flash_addr),
&u32_word);
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xb08c,
"%s: failed to read addr 0x%x!\n",
__func__, flash_addr);
goto exit_flash_read;
}
*(uint32_t *)p_data = u32_word;
p_data = p_data + 4;
flash_addr = flash_addr + 4;
}
exit_flash_read:
qla8044_flash_unlock(vha);
exit_lock_error:
return ret_val;
}
/*
* Address and length are byte address
*/
void *
qla8044_read_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
scsi_block_requests(vha->host);
if (qla8044_read_flash_data(vha, buf, offset, length / 4)
!= QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xb08d,
"%s: Failed to read from flash\n",
__func__);
}
scsi_unblock_requests(vha->host);
return buf;
}
static inline int
qla8044_need_reset(struct scsi_qla_host *vha)
{
uint32_t drv_state, drv_active;
int rval;
struct qla_hw_data *ha = vha->hw;
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
rval = drv_state & (1 << ha->portnum);
if (ha->flags.eeh_busy && drv_active)
rval = 1;
return rval;
}
/*
* qla8044_write_list - Write the value (p_entry->arg2) to address specified
* by p_entry->arg1 for all entries in header with delay of p_hdr->delay between
* entries.
*
* @vha : Pointer to adapter structure
* @p_hdr : reset_entry header for WRITE_LIST opcode.
*
*/
static void
qla8044_write_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
struct qla8044_entry *p_entry;
uint32_t i;
p_entry = (struct qla8044_entry *)((char *)p_hdr +
sizeof(struct qla8044_reset_entry_hdr));
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_wr_reg_indirect(vha, p_entry->arg1, p_entry->arg2);
if (p_hdr->delay)
udelay((uint32_t)(p_hdr->delay));
}
}
/*
* qla8044_read_write_list - Read from address specified by p_entry->arg1,
* write value read to address specified by p_entry->arg2, for all entries in
* header with delay of p_hdr->delay between entries.
*
* @vha : Pointer to adapter structure
* @p_hdr : reset_entry header for READ_WRITE_LIST opcode.
*
*/
static void
qla8044_read_write_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
struct qla8044_entry *p_entry;
uint32_t i;
p_entry = (struct qla8044_entry *)((char *)p_hdr +
sizeof(struct qla8044_reset_entry_hdr));
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_read_write_crb_reg(vha, p_entry->arg1,
p_entry->arg2);
if (p_hdr->delay)
udelay((uint32_t)(p_hdr->delay));
}
}
/*
* qla8044_poll_reg - Poll the given CRB addr for duration msecs till
* value read ANDed with test_mask is equal to test_result.
*
* @ha : Pointer to adapter structure
* @addr : CRB register address
* @duration : Poll for total of "duration" msecs
* @test_mask : Mask value read with "test_mask"
* @test_result : Compare (value&test_mask) with test_result.
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*/
static int
qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr,
int duration, uint32_t test_mask, uint32_t test_result)
{
uint32_t value = 0;
int timeout_error;
uint8_t retries;
int ret_val = QLA_SUCCESS;
ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
if (ret_val == QLA_FUNCTION_FAILED) {
timeout_error = 1;
goto exit_poll_reg;
}
/* poll every 1/10 of the total duration */
retries = duration/10;
do {
if ((value & test_mask) != test_result) {
timeout_error = 1;
msleep(duration/10);
ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
if (ret_val == QLA_FUNCTION_FAILED) {
timeout_error = 1;
goto exit_poll_reg;
}
} else {
timeout_error = 0;
break;
}
} while (retries--);
exit_poll_reg:
if (timeout_error) {
vha->reset_tmplt.seq_error++;
ql_log(ql_log_fatal, vha, 0xb090,
"%s: Poll Failed: 0x%08x 0x%08x 0x%08x\n",
__func__, value, test_mask, test_result);
}
return timeout_error;
}
/*
* qla8044_poll_list - For all entries in the POLL_LIST header, poll read CRB
* register specified by p_entry->arg1 and compare (value AND test_mask) with
* test_result to validate it. Wait for p_hdr->delay between processing entries.
*
* @ha : Pointer to adapter structure
* @p_hdr : reset_entry header for POLL_LIST opcode.
*
*/
static void
qla8044_poll_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
long delay;
struct qla8044_entry *p_entry;
struct qla8044_poll *p_poll;
uint32_t i;
uint32_t value;
p_poll = (struct qla8044_poll *)
((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
/* Entries start after 8 byte qla8044_poll, poll header contains
* the test_mask, test_value.
*/
p_entry = (struct qla8044_entry *)((char *)p_poll +
sizeof(struct qla8044_poll));
delay = (long)p_hdr->delay;
if (!delay) {
for (i = 0; i < p_hdr->count; i++, p_entry++)
qla8044_poll_reg(vha, p_entry->arg1,
delay, p_poll->test_mask, p_poll->test_value);
} else {
for (i = 0; i < p_hdr->count; i++, p_entry++) {
if (delay) {
if (qla8044_poll_reg(vha,
p_entry->arg1, delay,
p_poll->test_mask,
p_poll->test_value)) {
/*If
* (data_read&test_mask != test_value)
* read TIMEOUT_ADDR (arg1) and
* ADDR (arg2) registers
*/
qla8044_rd_reg_indirect(vha,
p_entry->arg1, &value);
qla8044_rd_reg_indirect(vha,
p_entry->arg2, &value);
}
}
}
}
}
/*
* qla8044_poll_write_list - Write dr_value, ar_value to dr_addr/ar_addr,
* read ar_addr, if (value& test_mask != test_mask) re-read till timeout
* expires.
*
* @vha : Pointer to adapter structure
* @p_hdr : reset entry header for POLL_WRITE_LIST opcode.
*
*/
static void
qla8044_poll_write_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
long delay;
struct qla8044_quad_entry *p_entry;
struct qla8044_poll *p_poll;
uint32_t i;
p_poll = (struct qla8044_poll *)((char *)p_hdr +
sizeof(struct qla8044_reset_entry_hdr));
p_entry = (struct qla8044_quad_entry *)((char *)p_poll +
sizeof(struct qla8044_poll));
delay = (long)p_hdr->delay;
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_wr_reg_indirect(vha,
p_entry->dr_addr, p_entry->dr_value);
qla8044_wr_reg_indirect(vha,
p_entry->ar_addr, p_entry->ar_value);
if (delay) {
if (qla8044_poll_reg(vha,
p_entry->ar_addr, delay,
p_poll->test_mask,
p_poll->test_value)) {
ql_dbg(ql_dbg_p3p, vha, 0xb091,
"%s: Timeout Error: poll list, ",
__func__);
ql_dbg(ql_dbg_p3p, vha, 0xb092,
"item_num %d, entry_num %d\n", i,
vha->reset_tmplt.seq_index);
}
}
}
}
/*
* qla8044_read_modify_write - Read value from p_entry->arg1, modify the
* value, write value to p_entry->arg2. Process entries with p_hdr->delay
* between entries.
*
* @vha : Pointer to adapter structure
* @p_hdr : header with shift/or/xor values.
*
*/
static void
qla8044_read_modify_write(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
struct qla8044_entry *p_entry;
struct qla8044_rmw *p_rmw_hdr;
uint32_t i;
p_rmw_hdr = (struct qla8044_rmw *)((char *)p_hdr +
sizeof(struct qla8044_reset_entry_hdr));
p_entry = (struct qla8044_entry *)((char *)p_rmw_hdr +
sizeof(struct qla8044_rmw));
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_rmw_crb_reg(vha, p_entry->arg1,
p_entry->arg2, p_rmw_hdr);
if (p_hdr->delay)
udelay((uint32_t)(p_hdr->delay));
}
}
/*
* qla8044_pause - Wait for p_hdr->delay msecs, called between processing
* two entries of a sequence.
*
* @vha : Pointer to adapter structure
* @p_hdr : Common reset entry header.
*
*/
static
void qla8044_pause(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
if (p_hdr->delay)
mdelay((uint32_t)((long)p_hdr->delay));
}
/*
* qla8044_template_end - Indicates end of reset sequence processing.
*
* @vha : Pointer to adapter structure
* @p_hdr : Common reset entry header.
*
*/
static void
qla8044_template_end(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
vha->reset_tmplt.template_end = 1;
if (vha->reset_tmplt.seq_error == 0) {
ql_dbg(ql_dbg_p3p, vha, 0xb093,
"%s: Reset sequence completed SUCCESSFULLY.\n", __func__);
} else {
ql_log(ql_log_fatal, vha, 0xb094,
"%s: Reset sequence completed with some timeout "
"errors.\n", __func__);
}
}
/*
* qla8044_poll_read_list - Write ar_value to ar_addr register, read ar_addr,
* if (value & test_mask != test_value) re-read till timeout value expires,
* read dr_addr register and assign to reset_tmplt.array.
*
* @vha : Pointer to adapter structure
* @p_hdr : Common reset entry header.
*
*/
static void
qla8044_poll_read_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
long delay;
int index;
struct qla8044_quad_entry *p_entry;
struct qla8044_poll *p_poll;
uint32_t i;
uint32_t value;
p_poll = (struct qla8044_poll *)
((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
p_entry = (struct qla8044_quad_entry *)
((char *)p_poll + sizeof(struct qla8044_poll));
delay = (long)p_hdr->delay;
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_wr_reg_indirect(vha, p_entry->ar_addr,
p_entry->ar_value);
if (delay) {
if (qla8044_poll_reg(vha, p_entry->ar_addr, delay,
p_poll->test_mask, p_poll->test_value)) {
ql_dbg(ql_dbg_p3p, vha, 0xb095,
"%s: Timeout Error: poll "
"list, ", __func__);
ql_dbg(ql_dbg_p3p, vha, 0xb096,
"Item_num %d, "
"entry_num %d\n", i,
vha->reset_tmplt.seq_index);
} else {
index = vha->reset_tmplt.array_index;
qla8044_rd_reg_indirect(vha,
p_entry->dr_addr, &value);
vha->reset_tmplt.array[index++] = value;
if (index == QLA8044_MAX_RESET_SEQ_ENTRIES)
vha->reset_tmplt.array_index = 1;
}
}
}
}
/*
* qla8031_process_reset_template - Process all entries in reset template
* till entry with SEQ_END opcode, which indicates end of the reset template
* processing. Each entry has a Reset Entry header, entry opcode/command, with
* size of the entry, number of entries in sub-sequence and delay in microsecs
* or timeout in millisecs.
*
* @ha : Pointer to adapter structure
* @p_buff : Common reset entry header.
*
*/
static void
qla8044_process_reset_template(struct scsi_qla_host *vha,
char *p_buff)
{
int index, entries;
struct qla8044_reset_entry_hdr *p_hdr;
char *p_entry = p_buff;
vha->reset_tmplt.seq_end = 0;
vha->reset_tmplt.template_end = 0;
entries = vha->reset_tmplt.hdr->entries;
index = vha->reset_tmplt.seq_index;
for (; (!vha->reset_tmplt.seq_end) && (index < entries); index++) {
p_hdr = (struct qla8044_reset_entry_hdr *)p_entry;
switch (p_hdr->cmd) {
case OPCODE_NOP:
break;
case OPCODE_WRITE_LIST:
qla8044_write_list(vha, p_hdr);
break;
case OPCODE_READ_WRITE_LIST:
qla8044_read_write_list(vha, p_hdr);
break;
case OPCODE_POLL_LIST:
qla8044_poll_list(vha, p_hdr);
break;
case OPCODE_POLL_WRITE_LIST:
qla8044_poll_write_list(vha, p_hdr);
break;
case OPCODE_READ_MODIFY_WRITE:
qla8044_read_modify_write(vha, p_hdr);
break;
case OPCODE_SEQ_PAUSE:
qla8044_pause(vha, p_hdr);
break;
case OPCODE_SEQ_END:
vha->reset_tmplt.seq_end = 1;
break;
case OPCODE_TMPL_END:
qla8044_template_end(vha, p_hdr);
break;
case OPCODE_POLL_READ_LIST:
qla8044_poll_read_list(vha, p_hdr);
break;
default:
ql_log(ql_log_fatal, vha, 0xb097,
"%s: Unknown command ==> 0x%04x on "
"entry = %d\n", __func__, p_hdr->cmd, index);
break;
}
/*
*Set pointer to next entry in the sequence.
*/
p_entry += p_hdr->size;
}
vha->reset_tmplt.seq_index = index;
}
static void
qla8044_process_init_seq(struct scsi_qla_host *vha)
{
qla8044_process_reset_template(vha,
vha->reset_tmplt.init_offset);
if (vha->reset_tmplt.seq_end != 1)
ql_log(ql_log_fatal, vha, 0xb098,
"%s: Abrupt INIT Sub-Sequence end.\n",
__func__);
}
static void
qla8044_process_stop_seq(struct scsi_qla_host *vha)
{
vha->reset_tmplt.seq_index = 0;
qla8044_process_reset_template(vha, vha->reset_tmplt.stop_offset);
if (vha->reset_tmplt.seq_end != 1)
ql_log(ql_log_fatal, vha, 0xb099,
"%s: Abrupt STOP Sub-Sequence end.\n", __func__);
}
static void
qla8044_process_start_seq(struct scsi_qla_host *vha)
{
qla8044_process_reset_template(vha, vha->reset_tmplt.start_offset);
if (vha->reset_tmplt.template_end != 1)
ql_log(ql_log_fatal, vha, 0xb09a,
"%s: Abrupt START Sub-Sequence end.\n",
__func__);
}
static int
qla8044_lockless_flash_read_u32(struct scsi_qla_host *vha,
uint32_t flash_addr, uint8_t *p_data, int u32_word_count)
{
uint32_t i;
uint32_t u32_word;
uint32_t flash_offset;
uint32_t addr = flash_addr;
int ret_val = QLA_SUCCESS;
flash_offset = addr & (QLA8044_FLASH_SECTOR_SIZE - 1);
if (addr & 0x3) {
ql_log(ql_log_fatal, vha, 0xb09b, "%s: Illegal addr = 0x%x\n",
__func__, addr);
ret_val = QLA_FUNCTION_FAILED;
goto exit_lockless_read;
}
ret_val = qla8044_wr_reg_indirect(vha,
QLA8044_FLASH_DIRECT_WINDOW, (addr));
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb09c,
"%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n",
__func__, addr);
goto exit_lockless_read;
}
/* Check if data is spread across multiple sectors */
if ((flash_offset + (u32_word_count * sizeof(uint32_t))) >
(QLA8044_FLASH_SECTOR_SIZE - 1)) {
/* Multi sector read */
for (i = 0; i < u32_word_count; i++) {
ret_val = qla8044_rd_reg_indirect(vha,
QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb09d,
"%s: failed to read addr 0x%x!\n",
__func__, addr);
goto exit_lockless_read;
}
*(uint32_t *)p_data = u32_word;
p_data = p_data + 4;
addr = addr + 4;
flash_offset = flash_offset + 4;
if (flash_offset > (QLA8044_FLASH_SECTOR_SIZE - 1)) {
/* This write is needed once for each sector */
ret_val = qla8044_wr_reg_indirect(vha,
QLA8044_FLASH_DIRECT_WINDOW, (addr));
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb09f,
"%s: failed to write addr "
"0x%x to FLASH_DIRECT_WINDOW!\n",
__func__, addr);
goto exit_lockless_read;
}
flash_offset = 0;
}
}
} else {
/* Single sector read */
for (i = 0; i < u32_word_count; i++) {
ret_val = qla8044_rd_reg_indirect(vha,
QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb0a0,
"%s: failed to read addr 0x%x!\n",
__func__, addr);
goto exit_lockless_read;
}
*(uint32_t *)p_data = u32_word;
p_data = p_data + 4;
addr = addr + 4;
}
}
exit_lockless_read:
return ret_val;
}
/*
* qla8044_ms_mem_write_128b - Writes data to MS/off-chip memory
*
* @vha : Pointer to adapter structure
* addr : Flash address to write to
* data : Data to be written
* count : word_count to be written
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*/
static int
qla8044_ms_mem_write_128b(struct scsi_qla_host *vha,
uint64_t addr, uint32_t *data, uint32_t count)
{
int i, j, ret_val = QLA_SUCCESS;
uint32_t agt_ctrl;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
/* Only 128-bit aligned access */
if (addr & 0xF) {
ret_val = QLA_FUNCTION_FAILED;
goto exit_ms_mem_write;
}
write_lock_irqsave(&ha->hw_lock, flags);
/* Write address */
ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, 0);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a1,
"%s: write to AGT_ADDR_HI failed!\n", __func__);
goto exit_ms_mem_write_unlock;
}
for (i = 0; i < count; i++, addr += 16) {
if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET,
QLA8044_ADDR_QDR_NET_MAX)) ||
(addr_in_range(addr, QLA8044_ADDR_DDR_NET,
QLA8044_ADDR_DDR_NET_MAX)))) {
ret_val = QLA_FUNCTION_FAILED;
goto exit_ms_mem_write_unlock;
}
ret_val = qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_ADDR_LO, addr);
/* Write data */
ret_val += qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_WRDATA_LO, *data++);
ret_val += qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_WRDATA_HI, *data++);
ret_val += qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_WRDATA_ULO, *data++);
ret_val += qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_WRDATA_UHI, *data++);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a2,
"%s: write to AGT_WRDATA failed!\n",
__func__);
goto exit_ms_mem_write_unlock;
}
/* Check write status */
ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
MIU_TA_CTL_WRITE_ENABLE);
ret_val += qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
MIU_TA_CTL_WRITE_START);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a3,
"%s: write to AGT_CTRL failed!\n", __func__);
goto exit_ms_mem_write_unlock;
}
for (j = 0; j < MAX_CTL_CHECK; j++) {
ret_val = qla8044_rd_reg_indirect(vha,
MD_MIU_TEST_AGT_CTRL, &agt_ctrl);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a4,
"%s: failed to read "
"MD_MIU_TEST_AGT_CTRL!\n", __func__);
goto exit_ms_mem_write_unlock;
}
if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
break;
}
/* Status check failed */
if (j >= MAX_CTL_CHECK) {
ql_log(ql_log_fatal, vha, 0xb0a5,
"%s: MS memory write failed!\n",
__func__);
ret_val = QLA_FUNCTION_FAILED;
goto exit_ms_mem_write_unlock;
}
}
exit_ms_mem_write_unlock:
write_unlock_irqrestore(&ha->hw_lock, flags);
exit_ms_mem_write:
return ret_val;
}
static int
qla8044_copy_bootloader(struct scsi_qla_host *vha)
{
uint8_t *p_cache;
uint32_t src, count, size;
uint64_t dest;
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
src = QLA8044_BOOTLOADER_FLASH_ADDR;
dest = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_ADDR);
size = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_SIZE);
/* 128 bit alignment check */
if (size & 0xF)
size = (size + 16) & ~0xF;
/* 16 byte count */
count = size/16;
p_cache = vmalloc(size);
if (p_cache == NULL) {
ql_log(ql_log_fatal, vha, 0xb0a6,
"%s: Failed to allocate memory for "
"boot loader cache\n", __func__);
ret_val = QLA_FUNCTION_FAILED;
goto exit_copy_bootloader;
}
ret_val = qla8044_lockless_flash_read_u32(vha, src,
p_cache, size/sizeof(uint32_t));
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a7,
"%s: Error reading F/W from flash!!!\n", __func__);
goto exit_copy_error;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0a8, "%s: Read F/W from flash!\n",
__func__);
/* 128 bit/16 byte write to MS memory */
ret_val = qla8044_ms_mem_write_128b(vha, dest,
(uint32_t *)p_cache, count);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a9,
"%s: Error writing F/W to MS !!!\n", __func__);
goto exit_copy_error;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0aa,
"%s: Wrote F/W (size %d) to MS !!!\n",
__func__, size);
exit_copy_error:
vfree(p_cache);
exit_copy_bootloader:
return ret_val;
}
static int
qla8044_restart(struct scsi_qla_host *vha)
{
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
qla8044_process_stop_seq(vha);
/* Collect minidump */
if (ql2xmdenable)
qla8044_get_minidump(vha);
else
ql_log(ql_log_fatal, vha, 0xb14c,
"Minidump disabled.\n");
qla8044_process_init_seq(vha);
if (qla8044_copy_bootloader(vha)) {
ql_log(ql_log_fatal, vha, 0xb0ab,
"%s: Copy bootloader, firmware restart failed!\n",
__func__);
ret_val = QLA_FUNCTION_FAILED;
goto exit_restart;
}
/*
* Loads F/W from flash
*/
qla8044_wr_reg(ha, QLA8044_FW_IMAGE_VALID, QLA8044_BOOT_FROM_FLASH);
qla8044_process_start_seq(vha);
exit_restart:
return ret_val;
}
/*
* qla8044_check_cmd_peg_status - Check peg status to see if Peg is
* initialized.
*
* @ha : Pointer to adapter structure
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*/
static int
qla8044_check_cmd_peg_status(struct scsi_qla_host *vha)
{
uint32_t val, ret_val = QLA_FUNCTION_FAILED;
int retries = CRB_CMDPEG_CHECK_RETRY_COUNT;
struct qla_hw_data *ha = vha->hw;
do {
val = qla8044_rd_reg(ha, QLA8044_CMDPEG_STATE);
if (val == PHAN_INITIALIZE_COMPLETE) {
ql_dbg(ql_dbg_p3p, vha, 0xb0ac,
"%s: Command Peg initialization "
"complete! state=0x%x\n", __func__, val);
ret_val = QLA_SUCCESS;
break;
}
msleep(CRB_CMDPEG_CHECK_DELAY);
} while (--retries);
return ret_val;
}
static int
qla8044_start_firmware(struct scsi_qla_host *vha)
{
int ret_val = QLA_SUCCESS;
if (qla8044_restart(vha)) {
ql_log(ql_log_fatal, vha, 0xb0ad,
"%s: Restart Error!!!, Need Reset!!!\n",
__func__);
ret_val = QLA_FUNCTION_FAILED;
goto exit_start_fw;
} else
ql_dbg(ql_dbg_p3p, vha, 0xb0af,
"%s: Restart done!\n", __func__);
ret_val = qla8044_check_cmd_peg_status(vha);
if (ret_val) {
ql_log(ql_log_fatal, vha, 0xb0b0,
"%s: Peg not initialized!\n", __func__);
ret_val = QLA_FUNCTION_FAILED;
}
exit_start_fw:
return ret_val;
}
void
qla8044_clear_drv_active(struct qla_hw_data *ha)
{
uint32_t drv_active;
struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
drv_active &= ~(1 << (ha->portnum));
ql_log(ql_log_info, vha, 0xb0b1,
"%s(%ld): drv_active: 0x%08x\n",
__func__, vha->host_no, drv_active);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
}
/*
* qla8044_device_bootstrap - Initialize device, set DEV_READY, start fw
* @ha: pointer to adapter structure
*
* Note: IDC lock must be held upon entry
**/
static int
qla8044_device_bootstrap(struct scsi_qla_host *vha)
{
int rval = QLA_FUNCTION_FAILED;
int i;
uint32_t old_count = 0, count = 0;
int need_reset = 0;
uint32_t idc_ctrl;
struct qla_hw_data *ha = vha->hw;
need_reset = qla8044_need_reset(vha);
if (!need_reset) {
old_count = qla8044_rd_direct(vha,
QLA8044_PEG_ALIVE_COUNTER_INDEX);
for (i = 0; i < 10; i++) {
msleep(200);
count = qla8044_rd_direct(vha,
QLA8044_PEG_ALIVE_COUNTER_INDEX);
if (count != old_count) {
rval = QLA_SUCCESS;
goto dev_ready;
}
}
qla8044_flash_lock_recovery(vha);
} else {
/* We are trying to perform a recovery here. */
if (ha->flags.isp82xx_fw_hung)
qla8044_flash_lock_recovery(vha);
}
/* set to DEV_INITIALIZING */
ql_log(ql_log_info, vha, 0xb0b2,
"%s: HW State: INITIALIZING\n", __func__);
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_INITIALIZING);
qla8044_idc_unlock(ha);
rval = qla8044_start_firmware(vha);
qla8044_idc_lock(ha);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_info, vha, 0xb0b3,
"%s: HW State: FAILED\n", __func__);
qla8044_clear_drv_active(ha);
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_FAILED);
return rval;
}
/* For ISP8044, If IDC_CTRL GRACEFUL_RESET_BIT1 is set , reset it after
* device goes to INIT state. */
idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
if (idc_ctrl & GRACEFUL_RESET_BIT1) {
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
(idc_ctrl & ~GRACEFUL_RESET_BIT1));
ha->fw_dumped = false;
}
dev_ready:
ql_log(ql_log_info, vha, 0xb0b4,
"%s: HW State: READY\n", __func__);
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, QLA8XXX_DEV_READY);
return rval;
}
/*-------------------------Reset Sequence Functions-----------------------*/
static void
qla8044_dump_reset_seq_hdr(struct scsi_qla_host *vha)
{
u8 *phdr;
if (!vha->reset_tmplt.buff) {
ql_log(ql_log_fatal, vha, 0xb0b5,
"%s: Error Invalid reset_seq_template\n", __func__);
return;
}
phdr = vha->reset_tmplt.buff;
ql_dbg(ql_dbg_p3p, vha, 0xb0b6,
"Reset Template :\n\t0x%X 0x%X 0x%X 0x%X"
"0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n"
"\t0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n\n",
*phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4),
*(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8),
*(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12),
*(phdr+13), *(phdr+14), *(phdr+15));
}
/*
* qla8044_reset_seq_checksum_test - Validate Reset Sequence template.
*
* @ha : Pointer to adapter structure
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*/
static int
qla8044_reset_seq_checksum_test(struct scsi_qla_host *vha)
{
uint32_t sum = 0;
uint16_t *buff = (uint16_t *)vha->reset_tmplt.buff;
int u16_count = vha->reset_tmplt.hdr->size / sizeof(uint16_t);
while (u16_count-- > 0)
sum += *buff++;
while (sum >> 16)
sum = (sum & 0xFFFF) + (sum >> 16);
/* checksum of 0 indicates a valid template */
if (~sum) {
return QLA_SUCCESS;
} else {
ql_log(ql_log_fatal, vha, 0xb0b7,
"%s: Reset seq checksum failed\n", __func__);
return QLA_FUNCTION_FAILED;
}
}
/*
* qla8044_read_reset_template - Read Reset Template from Flash, validate
* the template and store offsets of stop/start/init offsets in ha->reset_tmplt.
*
* @ha : Pointer to adapter structure
*/
void
qla8044_read_reset_template(struct scsi_qla_host *vha)
{
uint8_t *p_buff;
uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size;
vha->reset_tmplt.seq_error = 0;
vha->reset_tmplt.buff = vmalloc(QLA8044_RESTART_TEMPLATE_SIZE);
if (vha->reset_tmplt.buff == NULL) {
ql_log(ql_log_fatal, vha, 0xb0b8,
"%s: Failed to allocate reset template resources\n",
__func__);
goto exit_read_reset_template;
}
p_buff = vha->reset_tmplt.buff;
addr = QLA8044_RESET_TEMPLATE_ADDR;
tmplt_hdr_def_size =
sizeof(struct qla8044_reset_template_hdr) / sizeof(uint32_t);
ql_dbg(ql_dbg_p3p, vha, 0xb0b9,
"%s: Read template hdr size %d from Flash\n",
__func__, tmplt_hdr_def_size);
/* Copy template header from flash */
if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
ql_log(ql_log_fatal, vha, 0xb0ba,
"%s: Failed to read reset template\n", __func__);
goto exit_read_template_error;
}
vha->reset_tmplt.hdr =
(struct qla8044_reset_template_hdr *) vha->reset_tmplt.buff;
/* Validate the template header size and signature */
tmplt_hdr_size = vha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t);
if ((tmplt_hdr_size != tmplt_hdr_def_size) ||
(vha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) {
ql_log(ql_log_fatal, vha, 0xb0bb,
"%s: Template Header size invalid %d "
"tmplt_hdr_def_size %d!!!\n", __func__,
tmplt_hdr_size, tmplt_hdr_def_size);
goto exit_read_template_error;
}
addr = QLA8044_RESET_TEMPLATE_ADDR + vha->reset_tmplt.hdr->hdr_size;
p_buff = vha->reset_tmplt.buff + vha->reset_tmplt.hdr->hdr_size;
tmplt_hdr_def_size = (vha->reset_tmplt.hdr->size -
vha->reset_tmplt.hdr->hdr_size)/sizeof(uint32_t);
ql_dbg(ql_dbg_p3p, vha, 0xb0bc,
"%s: Read rest of the template size %d\n",
__func__, vha->reset_tmplt.hdr->size);
/* Copy rest of the template */
if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
ql_log(ql_log_fatal, vha, 0xb0bd,
"%s: Failed to read reset template\n", __func__);
goto exit_read_template_error;
}
/* Integrity check */
if (qla8044_reset_seq_checksum_test(vha)) {
ql_log(ql_log_fatal, vha, 0xb0be,
"%s: Reset Seq checksum failed!\n", __func__);
goto exit_read_template_error;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0bf,
"%s: Reset Seq checksum passed! Get stop, "
"start and init seq offsets\n", __func__);
/* Get STOP, START, INIT sequence offsets */
vha->reset_tmplt.init_offset = vha->reset_tmplt.buff +
vha->reset_tmplt.hdr->init_seq_offset;
vha->reset_tmplt.start_offset = vha->reset_tmplt.buff +
vha->reset_tmplt.hdr->start_seq_offset;
vha->reset_tmplt.stop_offset = vha->reset_tmplt.buff +
vha->reset_tmplt.hdr->hdr_size;
qla8044_dump_reset_seq_hdr(vha);
goto exit_read_reset_template;
exit_read_template_error:
vfree(vha->reset_tmplt.buff);
exit_read_reset_template:
return;
}
void
qla8044_set_idc_dontreset(struct scsi_qla_host *vha)
{
uint32_t idc_ctrl;
struct qla_hw_data *ha = vha->hw;
idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
idc_ctrl |= DONTRESET_BIT0;
ql_dbg(ql_dbg_p3p, vha, 0xb0c0,
"%s: idc_ctrl = %d\n", __func__, idc_ctrl);
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
}
static inline void
qla8044_set_rst_ready(struct scsi_qla_host *vha)
{
uint32_t drv_state;
struct qla_hw_data *ha = vha->hw;
drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
/* For ISP8044, drv_active register has 1 bit per function,
* shift 1 by func_num to set a bit for the function.*/
drv_state |= (1 << ha->portnum);
ql_log(ql_log_info, vha, 0xb0c1,
"%s(%ld): drv_state: 0x%08x\n",
__func__, vha->host_no, drv_state);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
}
/**
* qla8044_need_reset_handler - Code to start reset sequence
* @vha: pointer to adapter structure
*
* Note: IDC lock must be held upon entry
*/
static void
qla8044_need_reset_handler(struct scsi_qla_host *vha)
{
uint32_t dev_state = 0, drv_state, drv_active;
unsigned long reset_timeout;
struct qla_hw_data *ha = vha->hw;
ql_log(ql_log_fatal, vha, 0xb0c2,
"%s: Performing ISP error recovery\n", __func__);
if (vha->flags.online) {
qla8044_idc_unlock(ha);
qla2x00_abort_isp_cleanup(vha);
ha->isp_ops->get_flash_version(vha, vha->req->ring);
ha->isp_ops->nvram_config(vha);
qla8044_idc_lock(ha);
}
dev_state = qla8044_rd_direct(vha,
QLA8044_CRB_DEV_STATE_INDEX);
drv_state = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
ql_log(ql_log_info, vha, 0xb0c5,
"%s(%ld): drv_state = 0x%x, drv_active = 0x%x dev_state = 0x%x\n",
__func__, vha->host_no, drv_state, drv_active, dev_state);
qla8044_set_rst_ready(vha);
/* wait for 10 seconds for reset ack from all functions */
reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
do {
if (time_after_eq(jiffies, reset_timeout)) {
ql_log(ql_log_info, vha, 0xb0c4,
"%s: Function %d: Reset Ack Timeout!, drv_state: 0x%08x, drv_active: 0x%08x\n",
__func__, ha->portnum, drv_state, drv_active);
break;
}
qla8044_idc_unlock(ha);
msleep(1000);
qla8044_idc_lock(ha);
dev_state = qla8044_rd_direct(vha,
QLA8044_CRB_DEV_STATE_INDEX);
drv_state = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
} while (((drv_state & drv_active) != drv_active) &&
(dev_state == QLA8XXX_DEV_NEED_RESET));
/* Remove IDC participation of functions not acknowledging */
if (drv_state != drv_active) {
ql_log(ql_log_info, vha, 0xb0c7,
"%s(%ld): Function %d turning off drv_active of non-acking function 0x%x\n",
__func__, vha->host_no, ha->portnum,
(drv_active ^ drv_state));
drv_active = drv_active & drv_state;
qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX,
drv_active);
} else {
/*
* Reset owner should execute reset recovery,
* if all functions acknowledged
*/
if ((ha->flags.nic_core_reset_owner) &&
(dev_state == QLA8XXX_DEV_NEED_RESET)) {
ha->flags.nic_core_reset_owner = 0;
qla8044_device_bootstrap(vha);
return;
}
}
/* Exit if non active function */
if (!(drv_active & (1 << ha->portnum))) {
ha->flags.nic_core_reset_owner = 0;
return;
}
/*
* Execute Reset Recovery if Reset Owner or Function 7
* is the only active function
*/
if (ha->flags.nic_core_reset_owner ||
((drv_state & drv_active) == QLA8044_FUN7_ACTIVE_INDEX)) {
ha->flags.nic_core_reset_owner = 0;
qla8044_device_bootstrap(vha);
}
}
static void
qla8044_set_drv_active(struct scsi_qla_host *vha)
{
uint32_t drv_active;
struct qla_hw_data *ha = vha->hw;
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
/* For ISP8044, drv_active register has 1 bit per function,
* shift 1 by func_num to set a bit for the function.*/
drv_active |= (1 << ha->portnum);
ql_log(ql_log_info, vha, 0xb0c8,
"%s(%ld): drv_active: 0x%08x\n",
__func__, vha->host_no, drv_active);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
}
static int
qla8044_check_drv_active(struct scsi_qla_host *vha)
{
uint32_t drv_active;
struct qla_hw_data *ha = vha->hw;
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
if (drv_active & (1 << ha->portnum))
return QLA_SUCCESS;
else
return QLA_TEST_FAILED;
}
static void
qla8044_clear_idc_dontreset(struct scsi_qla_host *vha)
{
uint32_t idc_ctrl;
struct qla_hw_data *ha = vha->hw;
idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
idc_ctrl &= ~DONTRESET_BIT0;
ql_log(ql_log_info, vha, 0xb0c9,
"%s: idc_ctrl = %d\n", __func__,
idc_ctrl);
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
}
static int
qla8044_set_idc_ver(struct scsi_qla_host *vha)
{
int idc_ver;
uint32_t drv_active;
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
if (drv_active == (1 << ha->portnum)) {
idc_ver = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_IDC_VERSION_INDEX);
idc_ver &= (~0xFF);
idc_ver |= QLA8044_IDC_VER_MAJ_VALUE;
qla8044_wr_direct(vha, QLA8044_CRB_DRV_IDC_VERSION_INDEX,
idc_ver);
ql_log(ql_log_info, vha, 0xb0ca,
"%s: IDC version updated to %d\n",
__func__, idc_ver);
} else {
idc_ver = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_IDC_VERSION_INDEX);
idc_ver &= 0xFF;
if (QLA8044_IDC_VER_MAJ_VALUE != idc_ver) {
ql_log(ql_log_info, vha, 0xb0cb,
"%s: qla4xxx driver IDC version %d "
"is not compatible with IDC version %d "
"of other drivers!\n",
__func__, QLA8044_IDC_VER_MAJ_VALUE,
idc_ver);
rval = QLA_FUNCTION_FAILED;
goto exit_set_idc_ver;
}
}
/* Update IDC_MINOR_VERSION */
idc_ver = qla8044_rd_reg(ha, QLA8044_CRB_IDC_VER_MINOR);
idc_ver &= ~(0x03 << (ha->portnum * 2));
idc_ver |= (QLA8044_IDC_VER_MIN_VALUE << (ha->portnum * 2));
qla8044_wr_reg(ha, QLA8044_CRB_IDC_VER_MINOR, idc_ver);
exit_set_idc_ver:
return rval;
}
static int
qla8044_update_idc_reg(struct scsi_qla_host *vha)
{
uint32_t drv_active;
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
if (vha->flags.init_done)
goto exit_update_idc_reg;
qla8044_idc_lock(ha);
qla8044_set_drv_active(vha);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
/* If we are the first driver to load and
* ql2xdontresethba is not set, clear IDC_CTRL BIT0. */
if ((drv_active == (1 << ha->portnum)) && !ql2xdontresethba)
qla8044_clear_idc_dontreset(vha);
rval = qla8044_set_idc_ver(vha);
if (rval == QLA_FUNCTION_FAILED)
qla8044_clear_drv_active(ha);
qla8044_idc_unlock(ha);
exit_update_idc_reg:
return rval;
}
/**
* qla8044_need_qsnt_handler - Code to start qsnt
* @vha: pointer to adapter structure
*/
static void
qla8044_need_qsnt_handler(struct scsi_qla_host *vha)
{
unsigned long qsnt_timeout;
uint32_t drv_state, drv_active, dev_state;
struct qla_hw_data *ha = vha->hw;
if (vha->flags.online)
qla2x00_quiesce_io(vha);
else
return;
qla8044_set_qsnt_ready(vha);
/* Wait for 30 secs for all functions to ack qsnt mode */
qsnt_timeout = jiffies + (QSNT_ACK_TOV * HZ);
drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
/* Shift drv_active by 1 to match drv_state. As quiescent ready bit
position is at bit 1 and drv active is at bit 0 */
drv_active = drv_active << 1;
while (drv_state != drv_active) {
if (time_after_eq(jiffies, qsnt_timeout)) {
/* Other functions did not ack, changing state to
* DEV_READY
*/
clear_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_READY);
qla8044_clear_qsnt_ready(vha);
ql_log(ql_log_info, vha, 0xb0cc,
"Timeout waiting for quiescent ack!!!\n");
return;
}
qla8044_idc_unlock(ha);
msleep(1000);
qla8044_idc_lock(ha);
drv_state = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
drv_active = drv_active << 1;
}
/* All functions have Acked. Set quiescent state */
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_QUIESCENT);
ql_log(ql_log_info, vha, 0xb0cd,
"%s: HW State: QUIESCENT\n", __func__);
}
}
/*
* qla8044_device_state_handler - Adapter state machine
* @ha: pointer to host adapter structure.
*
* Note: IDC lock must be UNLOCKED upon entry
**/
int
qla8044_device_state_handler(struct scsi_qla_host *vha)
{
uint32_t dev_state;
int rval = QLA_SUCCESS;
unsigned long dev_init_timeout;
struct qla_hw_data *ha = vha->hw;
rval = qla8044_update_idc_reg(vha);
if (rval == QLA_FUNCTION_FAILED)
goto exit_error;
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
ql_dbg(ql_dbg_p3p, vha, 0xb0ce,
"Device state is 0x%x = %s\n",
dev_state, qdev_state(dev_state));
/* wait for 30 seconds for device to go ready */
dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
qla8044_idc_lock(ha);
while (1) {
if (time_after_eq(jiffies, dev_init_timeout)) {
if (qla8044_check_drv_active(vha) == QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xb0cf,
"%s: Device Init Failed 0x%x = %s\n",
QLA2XXX_DRIVER_NAME, dev_state,
qdev_state(dev_state));
qla8044_wr_direct(vha,
QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_FAILED);
}
}
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
ql_log(ql_log_info, vha, 0xb0d0,
"Device state is 0x%x = %s\n",
dev_state, qdev_state(dev_state));
/* NOTE: Make sure idc unlocked upon exit of switch statement */
switch (dev_state) {
case QLA8XXX_DEV_READY:
ha->flags.nic_core_reset_owner = 0;
goto exit;
case QLA8XXX_DEV_COLD:
rval = qla8044_device_bootstrap(vha);
break;
case QLA8XXX_DEV_INITIALIZING:
qla8044_idc_unlock(ha);
msleep(1000);
qla8044_idc_lock(ha);
break;
case QLA8XXX_DEV_NEED_RESET:
/* For ISP8044, if NEED_RESET is set by any driver,
* it should be honored, irrespective of IDC_CTRL
* DONTRESET_BIT0 */
qla8044_need_reset_handler(vha);
break;
case QLA8XXX_DEV_NEED_QUIESCENT:
/* idc locked/unlocked in handler */
qla8044_need_qsnt_handler(vha);
/* Reset the init timeout after qsnt handler */
dev_init_timeout = jiffies +
(ha->fcoe_reset_timeout * HZ);
break;
case QLA8XXX_DEV_QUIESCENT:
ql_log(ql_log_info, vha, 0xb0d1,
"HW State: QUIESCENT\n");
qla8044_idc_unlock(ha);
msleep(1000);
qla8044_idc_lock(ha);
/* Reset the init timeout after qsnt handler */
dev_init_timeout = jiffies +
(ha->fcoe_reset_timeout * HZ);
break;
case QLA8XXX_DEV_FAILED:
ha->flags.nic_core_reset_owner = 0;
qla8044_idc_unlock(ha);
qla8xxx_dev_failed_handler(vha);
rval = QLA_FUNCTION_FAILED;
qla8044_idc_lock(ha);
goto exit;
default:
qla8044_idc_unlock(ha);
qla8xxx_dev_failed_handler(vha);
rval = QLA_FUNCTION_FAILED;
qla8044_idc_lock(ha);
goto exit;
}
}
exit:
qla8044_idc_unlock(ha);
exit_error:
return rval;
}
/**
* qla8044_check_temp - Check the ISP82XX temperature.
* @vha: adapter block pointer.
*
* Note: The caller should not hold the idc lock.
*/
static int
qla8044_check_temp(struct scsi_qla_host *vha)
{
uint32_t temp, temp_state, temp_val;
int status = QLA_SUCCESS;
temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
temp_state = qla82xx_get_temp_state(temp);
temp_val = qla82xx_get_temp_val(temp);
if (temp_state == QLA82XX_TEMP_PANIC) {
ql_log(ql_log_warn, vha, 0xb0d2,
"Device temperature %d degrees C"
" exceeds maximum allowed. Hardware has been shut"
" down\n", temp_val);
status = QLA_FUNCTION_FAILED;
return status;
} else if (temp_state == QLA82XX_TEMP_WARN) {
ql_log(ql_log_warn, vha, 0xb0d3,
"Device temperature %d"
" degrees C exceeds operating range."
" Immediate action needed.\n", temp_val);
}
return 0;
}
int qla8044_read_temperature(scsi_qla_host_t *vha)
{
uint32_t temp;
temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
return qla82xx_get_temp_val(temp);
}
/**
* qla8044_check_fw_alive - Check firmware health
* @vha: Pointer to host adapter structure.
*
* Context: Interrupt
*/
int
qla8044_check_fw_alive(struct scsi_qla_host *vha)
{
uint32_t fw_heartbeat_counter;
uint32_t halt_status1, halt_status2;
int status = QLA_SUCCESS;
fw_heartbeat_counter = qla8044_rd_direct(vha,
QLA8044_PEG_ALIVE_COUNTER_INDEX);
/* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
if (fw_heartbeat_counter == 0xffffffff) {
ql_dbg(ql_dbg_p3p, vha, 0xb0d4,
"scsi%ld: %s: Device in frozen "
"state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
vha->host_no, __func__);
return status;
}
if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
vha->seconds_since_last_heartbeat++;
/* FW not alive after 2 seconds */
if (vha->seconds_since_last_heartbeat == 2) {
vha->seconds_since_last_heartbeat = 0;
halt_status1 = qla8044_rd_direct(vha,
QLA8044_PEG_HALT_STATUS1_INDEX);
halt_status2 = qla8044_rd_direct(vha,
QLA8044_PEG_HALT_STATUS2_INDEX);
ql_log(ql_log_info, vha, 0xb0d5,
"scsi(%ld): %s, ISP8044 "
"Dumping hw/fw registers:\n"
" PEG_HALT_STATUS1: 0x%x, "
"PEG_HALT_STATUS2: 0x%x,\n",
vha->host_no, __func__, halt_status1,
halt_status2);
status = QLA_FUNCTION_FAILED;
}
} else
vha->seconds_since_last_heartbeat = 0;
vha->fw_heartbeat_counter = fw_heartbeat_counter;
return status;
}
void
qla8044_watchdog(struct scsi_qla_host *vha)
{
uint32_t dev_state, halt_status;
int halt_status_unrecoverable = 0;
struct qla_hw_data *ha = vha->hw;
/* don't poll if reset is going on or FW hang in quiescent state */
if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))) {
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
if (qla8044_check_fw_alive(vha)) {
ha->flags.isp82xx_fw_hung = 1;
ql_log(ql_log_warn, vha, 0xb10a,
"Firmware hung.\n");
qla82xx_clear_pending_mbx(vha);
}
if (qla8044_check_temp(vha)) {
set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
ha->flags.isp82xx_fw_hung = 1;
qla2xxx_wake_dpc(vha);
} else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
ql_log(ql_log_info, vha, 0xb0d6,
"%s: HW State: NEED RESET!\n",
__func__);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
ql_log(ql_log_info, vha, 0xb0d7,
"%s: HW State: NEED QUIES detected!\n",
__func__);
set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else {
/* Check firmware health */
if (ha->flags.isp82xx_fw_hung) {
halt_status = qla8044_rd_direct(vha,
QLA8044_PEG_HALT_STATUS1_INDEX);
if (halt_status &
QLA8044_HALT_STATUS_FW_RESET) {
ql_log(ql_log_fatal, vha,
0xb0d8, "%s: Firmware "
"error detected device "
"is being reset\n",
__func__);
} else if (halt_status &
QLA8044_HALT_STATUS_UNRECOVERABLE) {
halt_status_unrecoverable = 1;
}
/* Since we cannot change dev_state in interrupt
* context, set appropriate DPC flag then wakeup
* DPC */
if (halt_status_unrecoverable) {
set_bit(ISP_UNRECOVERABLE,
&vha->dpc_flags);
} else {
if (dev_state ==
QLA8XXX_DEV_QUIESCENT) {
set_bit(FCOE_CTX_RESET_NEEDED,
&vha->dpc_flags);
ql_log(ql_log_info, vha, 0xb0d9,
"%s: FW CONTEXT Reset "
"needed!\n", __func__);
} else {
ql_log(ql_log_info, vha,
0xb0da, "%s: "
"detect abort needed\n",
__func__);
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
}
}
qla2xxx_wake_dpc(vha);
}
}
}
}
static int
qla8044_minidump_process_control(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr)
{
struct qla8044_minidump_entry_crb *crb_entry;
uint32_t read_value, opcode, poll_time, addr, index;
uint32_t crb_addr, rval = QLA_SUCCESS;
unsigned long wtime;
struct qla8044_minidump_template_hdr *tmplt_hdr;
int i;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_p3p, vha, 0xb0dd, "Entering fn: %s\n", __func__);
tmplt_hdr = (struct qla8044_minidump_template_hdr *)
ha->md_tmplt_hdr;
crb_entry = (struct qla8044_minidump_entry_crb *)entry_hdr;
crb_addr = crb_entry->addr;
for (i = 0; i < crb_entry->op_count; i++) {
opcode = crb_entry->crb_ctrl.opcode;
if (opcode & QLA82XX_DBG_OPCODE_WR) {
qla8044_wr_reg_indirect(vha, crb_addr,
crb_entry->value_1);
}
if (opcode & QLA82XX_DBG_OPCODE_RW) {
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
qla8044_wr_reg_indirect(vha, crb_addr, read_value);
}
if (opcode & QLA82XX_DBG_OPCODE_AND) {
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
read_value &= crb_entry->value_2;
if (opcode & QLA82XX_DBG_OPCODE_OR) {
read_value |= crb_entry->value_3;
opcode &= ~QLA82XX_DBG_OPCODE_OR;
}
qla8044_wr_reg_indirect(vha, crb_addr, read_value);
}
if (opcode & QLA82XX_DBG_OPCODE_OR) {
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
read_value |= crb_entry->value_3;
qla8044_wr_reg_indirect(vha, crb_addr, read_value);
}
if (opcode & QLA82XX_DBG_OPCODE_POLL) {
poll_time = crb_entry->crb_strd.poll_timeout;
wtime = jiffies + poll_time;
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
do {
if ((read_value & crb_entry->value_2) ==
crb_entry->value_1) {
break;
} else if (time_after_eq(jiffies, wtime)) {
/* capturing dump failed */
rval = QLA_FUNCTION_FAILED;
break;
} else {
qla8044_rd_reg_indirect(vha,
crb_addr, &read_value);
}
} while (1);
}
if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
if (crb_entry->crb_strd.state_index_a) {
index = crb_entry->crb_strd.state_index_a;
addr = tmplt_hdr->saved_state_array[index];
} else {
addr = crb_addr;
}
qla8044_rd_reg_indirect(vha, addr, &read_value);
index = crb_entry->crb_ctrl.state_index_v;
tmplt_hdr->saved_state_array[index] = read_value;
}
if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
if (crb_entry->crb_strd.state_index_a) {
index = crb_entry->crb_strd.state_index_a;
addr = tmplt_hdr->saved_state_array[index];
} else {
addr = crb_addr;
}
if (crb_entry->crb_ctrl.state_index_v) {
index = crb_entry->crb_ctrl.state_index_v;
read_value =
tmplt_hdr->saved_state_array[index];
} else {
read_value = crb_entry->value_1;
}
qla8044_wr_reg_indirect(vha, addr, read_value);
}
if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
index = crb_entry->crb_ctrl.state_index_v;
read_value = tmplt_hdr->saved_state_array[index];
read_value <<= crb_entry->crb_ctrl.shl;
read_value >>= crb_entry->crb_ctrl.shr;
if (crb_entry->value_2)
read_value &= crb_entry->value_2;
read_value |= crb_entry->value_3;
read_value += crb_entry->value_1;
tmplt_hdr->saved_state_array[index] = read_value;
}
crb_addr += crb_entry->crb_strd.addr_stride;
}
return rval;
}
static void
qla8044_minidump_process_rdcrb(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t r_addr, r_stride, loop_cnt, i, r_value;
struct qla8044_minidump_entry_crb *crb_hdr;
uint32_t *data_ptr = *d_ptr;
ql_dbg(ql_dbg_p3p, vha, 0xb0de, "Entering fn: %s\n", __func__);
crb_hdr = (struct qla8044_minidump_entry_crb *)entry_hdr;
r_addr = crb_hdr->addr;
r_stride = crb_hdr->crb_strd.addr_stride;
loop_cnt = crb_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla8044_rd_reg_indirect(vha, r_addr, &r_value);
*data_ptr++ = r_addr;
*data_ptr++ = r_value;
r_addr += r_stride;
}
*d_ptr = data_ptr;
}
static int
qla8044_minidump_process_rdmem(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t r_addr, r_value, r_data;
uint32_t i, j, loop_cnt;
struct qla8044_minidump_entry_rdmem *m_hdr;
unsigned long flags;
uint32_t *data_ptr = *d_ptr;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_p3p, vha, 0xb0df, "Entering fn: %s\n", __func__);
m_hdr = (struct qla8044_minidump_entry_rdmem *)entry_hdr;
r_addr = m_hdr->read_addr;
loop_cnt = m_hdr->read_data_size/16;
ql_dbg(ql_dbg_p3p, vha, 0xb0f0,
"[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
__func__, r_addr, m_hdr->read_data_size);
if (r_addr & 0xf) {
ql_dbg(ql_dbg_p3p, vha, 0xb0f1,
"[%s]: Read addr 0x%x not 16 bytes aligned\n",
__func__, r_addr);
return QLA_FUNCTION_FAILED;
}
if (m_hdr->read_data_size % 16) {
ql_dbg(ql_dbg_p3p, vha, 0xb0f2,
"[%s]: Read data[0x%x] not multiple of 16 bytes\n",
__func__, m_hdr->read_data_size);
return QLA_FUNCTION_FAILED;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0f3,
"[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
__func__, r_addr, m_hdr->read_data_size, loop_cnt);
write_lock_irqsave(&ha->hw_lock, flags);
for (i = 0; i < loop_cnt; i++) {
qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_LO, r_addr);
r_value = 0;
qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, r_value);
r_value = MIU_TA_CTL_ENABLE;
qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
r_value = MIU_TA_CTL_START_ENABLE;
qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
for (j = 0; j < MAX_CTL_CHECK; j++) {
qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
&r_value);
if ((r_value & MIU_TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
write_unlock_irqrestore(&ha->hw_lock, flags);
return QLA_SUCCESS;
}
for (j = 0; j < 4; j++) {
qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_RDDATA[j],
&r_data);
*data_ptr++ = r_data;
}
r_addr += 16;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
ql_dbg(ql_dbg_p3p, vha, 0xb0f4,
"Leaving fn: %s datacount: 0x%x\n",
__func__, (loop_cnt * 16));
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
/* ISP83xx flash read for _RDROM _BOARD */
static uint32_t
qla8044_minidump_process_rdrom(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t fl_addr, u32_count, rval;
struct qla8044_minidump_entry_rdrom *rom_hdr;
uint32_t *data_ptr = *d_ptr;
rom_hdr = (struct qla8044_minidump_entry_rdrom *)entry_hdr;
fl_addr = rom_hdr->read_addr;
u32_count = (rom_hdr->read_data_size)/sizeof(uint32_t);
ql_dbg(ql_dbg_p3p, vha, 0xb0f5, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
__func__, fl_addr, u32_count);
rval = qla8044_lockless_flash_read_u32(vha, fl_addr,
(u8 *)(data_ptr), u32_count);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb0f6,
"%s: Flash Read Error,Count=%d\n", __func__, u32_count);
return QLA_FUNCTION_FAILED;
} else {
data_ptr += u32_count;
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
}
static void
qla8044_mark_entry_skipped(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, int index)
{
entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
ql_log(ql_log_info, vha, 0xb0f7,
"scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
vha->host_no, index, entry_hdr->entry_type,
entry_hdr->d_ctrl.entry_capture_mask);
}
static int
qla8044_minidump_process_l2tag(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t addr, r_addr, c_addr, t_r_addr;
uint32_t i, k, loop_count, t_value, r_cnt, r_value;
unsigned long p_wait, w_time, p_mask;
uint32_t c_value_w, c_value_r;
struct qla8044_minidump_entry_cache *cache_hdr;
int rval = QLA_FUNCTION_FAILED;
uint32_t *data_ptr = *d_ptr;
ql_dbg(ql_dbg_p3p, vha, 0xb0f8, "Entering fn: %s\n", __func__);
cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
loop_count = cache_hdr->op_count;
r_addr = cache_hdr->read_addr;
c_addr = cache_hdr->control_addr;
c_value_w = cache_hdr->cache_ctrl.write_value;
t_r_addr = cache_hdr->tag_reg_addr;
t_value = cache_hdr->addr_ctrl.init_tag_value;
r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
p_wait = cache_hdr->cache_ctrl.poll_wait;
p_mask = cache_hdr->cache_ctrl.poll_mask;
for (i = 0; i < loop_count; i++) {
qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
if (c_value_w)
qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
if (p_mask) {
w_time = jiffies + p_wait;
do {
qla8044_rd_reg_indirect(vha, c_addr,
&c_value_r);
if ((c_value_r & p_mask) == 0) {
break;
} else if (time_after_eq(jiffies, w_time)) {
/* capturing dump failed */
return rval;
}
} while (1);
}
addr = r_addr;
for (k = 0; k < r_cnt; k++) {
qla8044_rd_reg_indirect(vha, addr, &r_value);
*data_ptr++ = r_value;
addr += cache_hdr->read_ctrl.read_addr_stride;
}
t_value += cache_hdr->addr_ctrl.tag_value_stride;
}
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
static void
qla8044_minidump_process_l1cache(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t addr, r_addr, c_addr, t_r_addr;
uint32_t i, k, loop_count, t_value, r_cnt, r_value;
uint32_t c_value_w;
struct qla8044_minidump_entry_cache *cache_hdr;
uint32_t *data_ptr = *d_ptr;
cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
loop_count = cache_hdr->op_count;
r_addr = cache_hdr->read_addr;
c_addr = cache_hdr->control_addr;
c_value_w = cache_hdr->cache_ctrl.write_value;
t_r_addr = cache_hdr->tag_reg_addr;
t_value = cache_hdr->addr_ctrl.init_tag_value;
r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
for (i = 0; i < loop_count; i++) {
qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
addr = r_addr;
for (k = 0; k < r_cnt; k++) {
qla8044_rd_reg_indirect(vha, addr, &r_value);
*data_ptr++ = r_value;
addr += cache_hdr->read_ctrl.read_addr_stride;
}
t_value += cache_hdr->addr_ctrl.tag_value_stride;
}
*d_ptr = data_ptr;
}
static void
qla8044_minidump_process_rdocm(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t r_addr, r_stride, loop_cnt, i, r_value;
struct qla8044_minidump_entry_rdocm *ocm_hdr;
uint32_t *data_ptr = *d_ptr;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_p3p, vha, 0xb0f9, "Entering fn: %s\n", __func__);
ocm_hdr = (struct qla8044_minidump_entry_rdocm *)entry_hdr;
r_addr = ocm_hdr->read_addr;
r_stride = ocm_hdr->read_addr_stride;
loop_cnt = ocm_hdr->op_count;
ql_dbg(ql_dbg_p3p, vha, 0xb0fa,
"[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
__func__, r_addr, r_stride, loop_cnt);
for (i = 0; i < loop_cnt; i++) {
r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
*data_ptr++ = r_value;
r_addr += r_stride;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0fb, "Leaving fn: %s datacount: 0x%lx\n",
__func__, (long unsigned int) (loop_cnt * sizeof(uint32_t)));
*d_ptr = data_ptr;
}
static void
qla8044_minidump_process_rdmux(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value = 0;
struct qla8044_minidump_entry_mux *mux_hdr;
uint32_t *data_ptr = *d_ptr;
ql_dbg(ql_dbg_p3p, vha, 0xb0fc, "Entering fn: %s\n", __func__);
mux_hdr = (struct qla8044_minidump_entry_mux *)entry_hdr;
r_addr = mux_hdr->read_addr;
s_addr = mux_hdr->select_addr;
s_stride = mux_hdr->select_value_stride;
s_value = mux_hdr->select_value;
loop_cnt = mux_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla8044_wr_reg_indirect(vha, s_addr, s_value);
qla8044_rd_reg_indirect(vha, r_addr, &r_value);
*data_ptr++ = s_value;
*data_ptr++ = r_value;
s_value += s_stride;
}
*d_ptr = data_ptr;
}
static void
qla8044_minidump_process_queue(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t s_addr, r_addr;
uint32_t r_stride, r_value, r_cnt, qid = 0;
uint32_t i, k, loop_cnt;
struct qla8044_minidump_entry_queue *q_hdr;
uint32_t *data_ptr = *d_ptr;
ql_dbg(ql_dbg_p3p, vha, 0xb0fd, "Entering fn: %s\n", __func__);
q_hdr = (struct qla8044_minidump_entry_queue *)entry_hdr;
s_addr = q_hdr->select_addr;
r_cnt = q_hdr->rd_strd.read_addr_cnt;
r_stride = q_hdr->rd_strd.read_addr_stride;
loop_cnt = q_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla8044_wr_reg_indirect(vha, s_addr, qid);
r_addr = q_hdr->read_addr;
for (k = 0; k < r_cnt; k++) {
qla8044_rd_reg_indirect(vha, r_addr, &r_value);
*data_ptr++ = r_value;
r_addr += r_stride;
}
qid += q_hdr->q_strd.queue_id_stride;
}
*d_ptr = data_ptr;
}
/* ISP83xx functions to process new minidump entries... */
static uint32_t
qla8044_minidump_process_pollrd(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
uint16_t s_stride, i;
struct qla8044_minidump_entry_pollrd *pollrd_hdr;
uint32_t *data_ptr = *d_ptr;
pollrd_hdr = (struct qla8044_minidump_entry_pollrd *) entry_hdr;
s_addr = pollrd_hdr->select_addr;
r_addr = pollrd_hdr->read_addr;
s_value = pollrd_hdr->select_value;
s_stride = pollrd_hdr->select_value_stride;
poll_wait = pollrd_hdr->poll_wait;
poll_mask = pollrd_hdr->poll_mask;
for (i = 0; i < pollrd_hdr->op_count; i++) {
qla8044_wr_reg_indirect(vha, s_addr, s_value);
poll_wait = pollrd_hdr->poll_wait;
while (1) {
qla8044_rd_reg_indirect(vha, s_addr, &r_value);
if ((r_value & poll_mask) != 0) {
break;
} else {
usleep_range(1000, 1100);
if (--poll_wait == 0) {
ql_log(ql_log_fatal, vha, 0xb0fe,
"%s: TIMEOUT\n", __func__);
goto error;
}
}
}
qla8044_rd_reg_indirect(vha, r_addr, &r_value);
*data_ptr++ = s_value;
*data_ptr++ = r_value;
s_value += s_stride;
}
*d_ptr = data_ptr;
return QLA_SUCCESS;
error:
return QLA_FUNCTION_FAILED;
}
static void
qla8044_minidump_process_rdmux2(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t sel_val1, sel_val2, t_sel_val, data, i;
uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
struct qla8044_minidump_entry_rdmux2 *rdmux2_hdr;
uint32_t *data_ptr = *d_ptr;
rdmux2_hdr = (struct qla8044_minidump_entry_rdmux2 *) entry_hdr;
sel_val1 = rdmux2_hdr->select_value_1;
sel_val2 = rdmux2_hdr->select_value_2;
sel_addr1 = rdmux2_hdr->select_addr_1;
sel_addr2 = rdmux2_hdr->select_addr_2;
sel_val_mask = rdmux2_hdr->select_value_mask;
read_addr = rdmux2_hdr->read_addr;
for (i = 0; i < rdmux2_hdr->op_count; i++) {
qla8044_wr_reg_indirect(vha, sel_addr1, sel_val1);
t_sel_val = sel_val1 & sel_val_mask;
*data_ptr++ = t_sel_val;
qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
qla8044_rd_reg_indirect(vha, read_addr, &data);
*data_ptr++ = data;
qla8044_wr_reg_indirect(vha, sel_addr1, sel_val2);
t_sel_val = sel_val2 & sel_val_mask;
*data_ptr++ = t_sel_val;
qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
qla8044_rd_reg_indirect(vha, read_addr, &data);
*data_ptr++ = data;
sel_val1 += rdmux2_hdr->select_value_stride;
sel_val2 += rdmux2_hdr->select_value_stride;
}
*d_ptr = data_ptr;
}
static uint32_t
qla8044_minidump_process_pollrdmwr(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t poll_wait, poll_mask, r_value, data;
uint32_t addr_1, addr_2, value_1, value_2;
struct qla8044_minidump_entry_pollrdmwr *poll_hdr;
uint32_t *data_ptr = *d_ptr;
poll_hdr = (struct qla8044_minidump_entry_pollrdmwr *) entry_hdr;
addr_1 = poll_hdr->addr_1;
addr_2 = poll_hdr->addr_2;
value_1 = poll_hdr->value_1;
value_2 = poll_hdr->value_2;
poll_mask = poll_hdr->poll_mask;
qla8044_wr_reg_indirect(vha, addr_1, value_1);
poll_wait = poll_hdr->poll_wait;
while (1) {
qla8044_rd_reg_indirect(vha, addr_1, &r_value);
if ((r_value & poll_mask) != 0) {
break;
} else {
usleep_range(1000, 1100);
if (--poll_wait == 0) {
ql_log(ql_log_fatal, vha, 0xb0ff,
"%s: TIMEOUT\n", __func__);
goto error;
}
}
}
qla8044_rd_reg_indirect(vha, addr_2, &data);
data &= poll_hdr->modify_mask;
qla8044_wr_reg_indirect(vha, addr_2, data);
qla8044_wr_reg_indirect(vha, addr_1, value_2);
poll_wait = poll_hdr->poll_wait;
while (1) {
qla8044_rd_reg_indirect(vha, addr_1, &r_value);
if ((r_value & poll_mask) != 0) {
break;
} else {
usleep_range(1000, 1100);
if (--poll_wait == 0) {
ql_log(ql_log_fatal, vha, 0xb100,
"%s: TIMEOUT2\n", __func__);
goto error;
}
}
}
*data_ptr++ = addr_2;
*data_ptr++ = data;
*d_ptr = data_ptr;
return QLA_SUCCESS;
error:
return QLA_FUNCTION_FAILED;
}
#define ISP8044_PEX_DMA_ENGINE_INDEX 8
#define ISP8044_PEX_DMA_BASE_ADDRESS 0x77320000
#define ISP8044_PEX_DMA_NUM_OFFSET 0x10000UL
#define ISP8044_PEX_DMA_CMD_ADDR_LOW 0x0
#define ISP8044_PEX_DMA_CMD_ADDR_HIGH 0x04
#define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL 0x08
#define ISP8044_PEX_DMA_READ_SIZE (16 * 1024)
#define ISP8044_PEX_DMA_MAX_WAIT (100 * 100) /* Max wait of 100 msecs */
static int
qla8044_check_dma_engine_state(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_SUCCESS;
uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
uint64_t dma_base_addr = 0;
struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
tmplt_hdr = ha->md_tmplt_hdr;
dma_eng_num =
tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
(dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
/* Read the pex-dma's command-status-and-control register. */
rval = qla8044_rd_reg_indirect(vha,
(dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
&cmd_sts_and_cntrl);
if (rval)
return QLA_FUNCTION_FAILED;
/* Check if requested pex-dma engine is available. */
if (cmd_sts_and_cntrl & BIT_31)
return QLA_SUCCESS;
return QLA_FUNCTION_FAILED;
}
static int
qla8044_start_pex_dma(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_SUCCESS, wait = 0;
uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
uint64_t dma_base_addr = 0;
struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
tmplt_hdr = ha->md_tmplt_hdr;
dma_eng_num =
tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
(dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
rval = qla8044_wr_reg_indirect(vha,
dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_LOW,
m_hdr->desc_card_addr);
if (rval)
goto error_exit;
rval = qla8044_wr_reg_indirect(vha,
dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_HIGH, 0);
if (rval)
goto error_exit;
rval = qla8044_wr_reg_indirect(vha,
dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL,
m_hdr->start_dma_cmd);
if (rval)
goto error_exit;
/* Wait for dma operation to complete. */
for (wait = 0; wait < ISP8044_PEX_DMA_MAX_WAIT; wait++) {
rval = qla8044_rd_reg_indirect(vha,
(dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
&cmd_sts_and_cntrl);
if (rval)
goto error_exit;
if ((cmd_sts_and_cntrl & BIT_1) == 0)
break;
udelay(10);
}
/* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
if (wait >= ISP8044_PEX_DMA_MAX_WAIT) {
rval = QLA_FUNCTION_FAILED;
goto error_exit;
}
error_exit:
return rval;
}
static int
qla8044_minidump_pex_dma_read(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_SUCCESS;
struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
uint32_t chunk_size, read_size;
uint8_t *data_ptr = (uint8_t *)*d_ptr;
void *rdmem_buffer = NULL;
dma_addr_t rdmem_dma;
struct qla8044_pex_dma_descriptor dma_desc;
rval = qla8044_check_dma_engine_state(vha);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_p3p, vha, 0xb147,
"DMA engine not available. Fallback to rdmem-read.\n");
return QLA_FUNCTION_FAILED;
}
m_hdr = (void *)entry_hdr;
rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
ISP8044_PEX_DMA_READ_SIZE, &rdmem_dma, GFP_KERNEL);
if (!rdmem_buffer) {
ql_dbg(ql_dbg_p3p, vha, 0xb148,
"Unable to allocate rdmem dma buffer\n");
return QLA_FUNCTION_FAILED;
}
/* Prepare pex-dma descriptor to be written to MS memory. */
/* dma-desc-cmd layout:
* 0-3: dma-desc-cmd 0-3
* 4-7: pcid function number
* 8-15: dma-desc-cmd 8-15
* dma_bus_addr: dma buffer address
* cmd.read_data_size: amount of data-chunk to be read.
*/
dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
dma_desc.cmd.dma_desc_cmd |=
((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
dma_desc.dma_bus_addr = rdmem_dma;
dma_desc.cmd.read_data_size = chunk_size = ISP8044_PEX_DMA_READ_SIZE;
read_size = 0;
/*
* Perform rdmem operation using pex-dma.
* Prepare dma in chunks of ISP8044_PEX_DMA_READ_SIZE.
*/
while (read_size < m_hdr->read_data_size) {
if (m_hdr->read_data_size - read_size <
ISP8044_PEX_DMA_READ_SIZE) {
chunk_size = (m_hdr->read_data_size - read_size);
dma_desc.cmd.read_data_size = chunk_size;
}
dma_desc.src_addr = m_hdr->read_addr + read_size;
/* Prepare: Write pex-dma descriptor to MS memory. */
rval = qla8044_ms_mem_write_128b(vha,
m_hdr->desc_card_addr, (uint32_t *)&dma_desc,
(sizeof(struct qla8044_pex_dma_descriptor)/16));
if (rval) {
ql_log(ql_log_warn, vha, 0xb14a,
"%s: Error writing rdmem-dma-init to MS !!!\n",
__func__);
goto error_exit;
}
ql_dbg(ql_dbg_p3p, vha, 0xb14b,
"%s: Dma-descriptor: Instruct for rdmem dma "
"(chunk_size 0x%x).\n", __func__, chunk_size);
/* Execute: Start pex-dma operation. */
rval = qla8044_start_pex_dma(vha, m_hdr);
if (rval)
goto error_exit;
memcpy(data_ptr, rdmem_buffer, chunk_size);
data_ptr += chunk_size;
read_size += chunk_size;
}
*d_ptr = (uint32_t *)data_ptr;
error_exit:
if (rdmem_buffer)
dma_free_coherent(&ha->pdev->dev, ISP8044_PEX_DMA_READ_SIZE,
rdmem_buffer, rdmem_dma);
return rval;
}
static uint32_t
qla8044_minidump_process_rddfe(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
int loop_cnt;
uint32_t addr1, addr2, value, data, temp, wrVal;
uint8_t stride, stride2;
uint16_t count;
uint32_t poll, mask, modify_mask;
uint32_t wait_count = 0;
uint32_t *data_ptr = *d_ptr;
struct qla8044_minidump_entry_rddfe *rddfe;
rddfe = (struct qla8044_minidump_entry_rddfe *) entry_hdr;
addr1 = rddfe->addr_1;
value = rddfe->value;
stride = rddfe->stride;
stride2 = rddfe->stride2;
count = rddfe->count;
poll = rddfe->poll;
mask = rddfe->mask;
modify_mask = rddfe->modify_mask;
addr2 = addr1 + stride;
for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
qla8044_wr_reg_indirect(vha, addr1, (0x40000000 | value));
wait_count = 0;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &temp);
if ((temp & mask) != 0)
break;
wait_count++;
}
if (wait_count == poll) {
ql_log(ql_log_warn, vha, 0xb153,
"%s: TIMEOUT\n", __func__);
goto error;
} else {
qla8044_rd_reg_indirect(vha, addr2, &temp);
temp = temp & modify_mask;
temp = (temp | ((loop_cnt << 16) | loop_cnt));
wrVal = ((temp << 16) | temp);
qla8044_wr_reg_indirect(vha, addr2, wrVal);
qla8044_wr_reg_indirect(vha, addr1, value);
wait_count = 0;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &temp);
if ((temp & mask) != 0)
break;
wait_count++;
}
if (wait_count == poll) {
ql_log(ql_log_warn, vha, 0xb154,
"%s: TIMEOUT\n", __func__);
goto error;
}
qla8044_wr_reg_indirect(vha, addr1,
((0x40000000 | value) + stride2));
wait_count = 0;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &temp);
if ((temp & mask) != 0)
break;
wait_count++;
}
if (wait_count == poll) {
ql_log(ql_log_warn, vha, 0xb155,
"%s: TIMEOUT\n", __func__);
goto error;
}
qla8044_rd_reg_indirect(vha, addr2, &data);
*data_ptr++ = wrVal;
*data_ptr++ = data;
}
}
*d_ptr = data_ptr;
return QLA_SUCCESS;
error:
return -1;
}
static uint32_t
qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
int ret = 0;
uint32_t addr1, addr2, value1, value2, data, selVal;
uint8_t stride1, stride2;
uint32_t addr3, addr4, addr5, addr6, addr7;
uint16_t count, loop_cnt;
uint32_t mask;
uint32_t *data_ptr = *d_ptr;
struct qla8044_minidump_entry_rdmdio *rdmdio;
rdmdio = (struct qla8044_minidump_entry_rdmdio *) entry_hdr;
addr1 = rdmdio->addr_1;
addr2 = rdmdio->addr_2;
value1 = rdmdio->value_1;
stride1 = rdmdio->stride_1;
stride2 = rdmdio->stride_2;
count = rdmdio->count;
mask = rdmdio->mask;
value2 = rdmdio->value_2;
addr3 = addr1 + stride1;
for (loop_cnt = 0; loop_cnt < count; loop_cnt++) {
ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2,
addr3, mask);
if (ret == -1)
goto error;
addr4 = addr2 - stride1;
ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr4,
value2);
if (ret == -1)
goto error;
addr5 = addr2 - (2 * stride1);
ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr5,
value1);
if (ret == -1)
goto error;
addr6 = addr2 - (3 * stride1);
ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask,
addr6, 0x2);
if (ret == -1)
goto error;
ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2,
addr3, mask);
if (ret == -1)
goto error;
addr7 = addr2 - (4 * stride1);
data = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr7);
if (data == -1)
goto error;
selVal = (value2 << 18) | (value1 << 2) | 2;
stride2 = rdmdio->stride_2;
*data_ptr++ = selVal;
*data_ptr++ = data;
value1 = value1 + stride2;
*d_ptr = data_ptr;
}
return 0;
error:
return -1;
}
static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t addr1, addr2, value1, value2, poll, r_value;
uint32_t wait_count = 0;
struct qla8044_minidump_entry_pollwr *pollwr_hdr;
pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr;
addr1 = pollwr_hdr->addr_1;
addr2 = pollwr_hdr->addr_2;
value1 = pollwr_hdr->value_1;
value2 = pollwr_hdr->value_2;
poll = pollwr_hdr->poll;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &r_value);
if ((r_value & poll) != 0)
break;
wait_count++;
}
if (wait_count == poll) {
ql_log(ql_log_warn, vha, 0xb156, "%s: TIMEOUT\n", __func__);
goto error;
}
qla8044_wr_reg_indirect(vha, addr2, value2);
qla8044_wr_reg_indirect(vha, addr1, value1);
wait_count = 0;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &r_value);
if ((r_value & poll) != 0)
break;
wait_count++;
}
return QLA_SUCCESS;
error:
return -1;
}
/*
*
* qla8044_collect_md_data - Retrieve firmware minidump data.
* @ha: pointer to adapter structure
**/
int
qla8044_collect_md_data(struct scsi_qla_host *vha)
{
int num_entry_hdr = 0;
struct qla8044_minidump_entry_hdr *entry_hdr;
struct qla8044_minidump_template_hdr *tmplt_hdr;
uint32_t *data_ptr;
uint32_t data_collected = 0, f_capture_mask;
int i, rval = QLA_FUNCTION_FAILED;
uint64_t now;
uint32_t timestamp, idc_control;
struct qla_hw_data *ha = vha->hw;
if (!ha->md_dump) {
ql_log(ql_log_info, vha, 0xb101,
"%s(%ld) No buffer to dump\n",
__func__, vha->host_no);
return rval;
}
if (ha->fw_dumped) {
ql_log(ql_log_warn, vha, 0xb10d,
"Firmware has been previously dumped (%p) "
"-- ignoring request.\n", ha->fw_dump);
goto md_failed;
}
ha->fw_dumped = false;
if (!ha->md_tmplt_hdr || !ha->md_dump) {
ql_log(ql_log_warn, vha, 0xb10e,
"Memory not allocated for minidump capture\n");
goto md_failed;
}
qla8044_idc_lock(ha);
idc_control = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
if (idc_control & GRACEFUL_RESET_BIT1) {
ql_log(ql_log_warn, vha, 0xb112,
"Forced reset from application, "
"ignore minidump capture\n");
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
(idc_control & ~GRACEFUL_RESET_BIT1));
qla8044_idc_unlock(ha);
goto md_failed;
}
qla8044_idc_unlock(ha);
if (qla82xx_validate_template_chksum(vha)) {
ql_log(ql_log_info, vha, 0xb109,
"Template checksum validation error\n");
goto md_failed;
}
tmplt_hdr = (struct qla8044_minidump_template_hdr *)
ha->md_tmplt_hdr;
data_ptr = (uint32_t *)((uint8_t *)ha->md_dump);
num_entry_hdr = tmplt_hdr->num_of_entries;
ql_dbg(ql_dbg_p3p, vha, 0xb11a,
"Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
/* Validate whether required debug level is set */
if ((f_capture_mask & 0x3) != 0x3) {
ql_log(ql_log_warn, vha, 0xb10f,
"Minimum required capture mask[0x%x] level not set\n",
f_capture_mask);
}
tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
ql_log(ql_log_info, vha, 0xb102,
"[%s]: starting data ptr: %p\n",
__func__, data_ptr);
ql_log(ql_log_info, vha, 0xb10b,
"[%s]: no of entry headers in Template: 0x%x\n",
__func__, num_entry_hdr);
ql_log(ql_log_info, vha, 0xb10c,
"[%s]: Total_data_size 0x%x, %d obtained\n",
__func__, ha->md_dump_size, ha->md_dump_size);
/* Update current timestamp before taking dump */
now = get_jiffies_64();
timestamp = (u32)(jiffies_to_msecs(now) / 1000);
tmplt_hdr->driver_timestamp = timestamp;
entry_hdr = (struct qla8044_minidump_entry_hdr *)
(((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
tmplt_hdr->saved_state_array[QLA8044_SS_OCM_WNDREG_INDEX] =
tmplt_hdr->ocm_window_reg[ha->portnum];
/* Walk through the entry headers - validate/perform required action */
for (i = 0; i < num_entry_hdr; i++) {
if (data_collected > ha->md_dump_size) {
ql_log(ql_log_info, vha, 0xb103,
"Data collected: [0x%x], "
"Total Dump size: [0x%x]\n",
data_collected, ha->md_dump_size);
return rval;
}
if (!(entry_hdr->d_ctrl.entry_capture_mask &
ql2xmdcapmask)) {
entry_hdr->d_ctrl.driver_flags |=
QLA82XX_DBG_SKIPPED_FLAG;
goto skip_nxt_entry;
}
ql_dbg(ql_dbg_p3p, vha, 0xb104,
"Data collected: [0x%x], Dump size left:[0x%x]\n",
data_collected,
(ha->md_dump_size - data_collected));
/* Decode the entry type and take required action to capture
* debug data
*/
switch (entry_hdr->entry_type) {
case QLA82XX_RDEND:
qla8044_mark_entry_skipped(vha, entry_hdr, i);
break;
case QLA82XX_CNTRL:
rval = qla8044_minidump_process_control(vha,
entry_hdr);
if (rval != QLA_SUCCESS) {
qla8044_mark_entry_skipped(vha, entry_hdr, i);
goto md_failed;
}
break;
case QLA82XX_RDCRB:
qla8044_minidump_process_rdcrb(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_RDMEM:
rval = qla8044_minidump_pex_dma_read(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS) {
rval = qla8044_minidump_process_rdmem(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS) {
qla8044_mark_entry_skipped(vha,
entry_hdr, i);
goto md_failed;
}
}
break;
case QLA82XX_BOARD:
case QLA82XX_RDROM:
rval = qla8044_minidump_process_rdrom(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS) {
qla8044_mark_entry_skipped(vha,
entry_hdr, i);
}
break;
case QLA82XX_L2DTG:
case QLA82XX_L2ITG:
case QLA82XX_L2DAT:
case QLA82XX_L2INS:
rval = qla8044_minidump_process_l2tag(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS) {
qla8044_mark_entry_skipped(vha, entry_hdr, i);
goto md_failed;
}
break;
case QLA8044_L1DTG:
case QLA8044_L1ITG:
case QLA82XX_L1DAT:
case QLA82XX_L1INS:
qla8044_minidump_process_l1cache(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_RDOCM:
qla8044_minidump_process_rdocm(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_RDMUX:
qla8044_minidump_process_rdmux(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_QUEUE:
qla8044_minidump_process_queue(vha,
entry_hdr, &data_ptr);
break;
case QLA8044_POLLRD:
rval = qla8044_minidump_process_pollrd(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS)
qla8044_mark_entry_skipped(vha, entry_hdr, i);
break;
case QLA8044_RDMUX2:
qla8044_minidump_process_rdmux2(vha,
entry_hdr, &data_ptr);
break;
case QLA8044_POLLRDMWR:
rval = qla8044_minidump_process_pollrdmwr(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS)
qla8044_mark_entry_skipped(vha, entry_hdr, i);
break;
case QLA8044_RDDFE:
rval = qla8044_minidump_process_rddfe(vha, entry_hdr,
&data_ptr);
if (rval != QLA_SUCCESS)
qla8044_mark_entry_skipped(vha, entry_hdr, i);
break;
case QLA8044_RDMDIO:
rval = qla8044_minidump_process_rdmdio(vha, entry_hdr,
&data_ptr);
if (rval != QLA_SUCCESS)
qla8044_mark_entry_skipped(vha, entry_hdr, i);
break;
case QLA8044_POLLWR:
rval = qla8044_minidump_process_pollwr(vha, entry_hdr,
&data_ptr);
if (rval != QLA_SUCCESS)
qla8044_mark_entry_skipped(vha, entry_hdr, i);
break;
case QLA82XX_RDNOP:
default:
qla8044_mark_entry_skipped(vha, entry_hdr, i);
break;
}
data_collected = (uint8_t *)data_ptr -
(uint8_t *)((uint8_t *)ha->md_dump);
skip_nxt_entry:
/*
* next entry in the template
*/
entry_hdr = (struct qla8044_minidump_entry_hdr *)
(((uint8_t *)entry_hdr) + entry_hdr->entry_size);
}
if (data_collected != ha->md_dump_size) {
ql_log(ql_log_info, vha, 0xb105,
"Dump data mismatch: Data collected: "
"[0x%x], total_data_size:[0x%x]\n",
data_collected, ha->md_dump_size);
rval = QLA_FUNCTION_FAILED;
goto md_failed;
}
ql_log(ql_log_info, vha, 0xb110,
"Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
ha->fw_dumped = true;
qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
ql_log(ql_log_info, vha, 0xb106,
"Leaving fn: %s Last entry: 0x%x\n",
__func__, i);
md_failed:
return rval;
}
void
qla8044_get_minidump(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
if (!qla8044_collect_md_data(vha)) {
ha->fw_dumped = true;
ha->prev_minidump_failed = 0;
} else {
ql_log(ql_log_fatal, vha, 0xb0db,
"%s: Unable to collect minidump\n",
__func__);
ha->prev_minidump_failed = 1;
}
}
static int
qla8044_poll_flash_status_reg(struct scsi_qla_host *vha)
{
uint32_t flash_status;
int retries = QLA8044_FLASH_READ_RETRY_COUNT;
int ret_val = QLA_SUCCESS;
while (retries--) {
ret_val = qla8044_rd_reg_indirect(vha, QLA8044_FLASH_STATUS,
&flash_status);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb13c,
"%s: Failed to read FLASH_STATUS reg.\n",
__func__);
break;
}
if ((flash_status & QLA8044_FLASH_STATUS_READY) ==
QLA8044_FLASH_STATUS_READY)
break;
msleep(QLA8044_FLASH_STATUS_REG_POLL_DELAY);
}
if (!retries)
ret_val = QLA_FUNCTION_FAILED;
return ret_val;
}
static int
qla8044_write_flash_status_reg(struct scsi_qla_host *vha,
uint32_t data)
{
int ret_val = QLA_SUCCESS;
uint32_t cmd;
cmd = vha->hw->fdt_wrt_sts_reg_cmd;
ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
QLA8044_FLASH_STATUS_WRITE_DEF_SIG | cmd);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb125,
"%s: Failed to write to FLASH_ADDR.\n", __func__);
goto exit_func;
}
ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, data);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb126,
"%s: Failed to write to FLASH_WRDATA.\n", __func__);
goto exit_func;
}
ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
QLA8044_FLASH_SECOND_ERASE_MS_VAL);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb127,
"%s: Failed to write to FLASH_CONTROL.\n", __func__);
goto exit_func;
}
ret_val = qla8044_poll_flash_status_reg(vha);
if (ret_val)
ql_log(ql_log_warn, vha, 0xb128,
"%s: Error polling flash status reg.\n", __func__);
exit_func:
return ret_val;
}
/*
* This function assumes that the flash lock is held.
*/
static int
qla8044_unprotect_flash(scsi_qla_host_t *vha)
{
int ret_val;
struct qla_hw_data *ha = vha->hw;
ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_enable);
if (ret_val)
ql_log(ql_log_warn, vha, 0xb139,
"%s: Write flash status failed.\n", __func__);
return ret_val;
}
/*
* This function assumes that the flash lock is held.
*/
static int
qla8044_protect_flash(scsi_qla_host_t *vha)
{
int ret_val;
struct qla_hw_data *ha = vha->hw;
ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_disable);
if (ret_val)
ql_log(ql_log_warn, vha, 0xb13b,
"%s: Write flash status failed.\n", __func__);
return ret_val;
}
static int
qla8044_erase_flash_sector(struct scsi_qla_host *vha,
uint32_t sector_start_addr)
{
uint32_t reversed_addr;
int ret_val = QLA_SUCCESS;
ret_val = qla8044_poll_flash_status_reg(vha);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb12e,
"%s: Poll flash status after erase failed..\n", __func__);
}
reversed_addr = (((sector_start_addr & 0xFF) << 16) |
(sector_start_addr & 0xFF00) |
((sector_start_addr & 0xFF0000) >> 16));
ret_val = qla8044_wr_reg_indirect(vha,
QLA8044_FLASH_WRDATA, reversed_addr);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb12f,
"%s: Failed to write to FLASH_WRDATA.\n", __func__);
}
ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
QLA8044_FLASH_ERASE_SIG | vha->hw->fdt_erase_cmd);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb130,
"%s: Failed to write to FLASH_ADDR.\n", __func__);
}
ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
QLA8044_FLASH_LAST_ERASE_MS_VAL);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb131,
"%s: Failed write to FLASH_CONTROL.\n", __func__);
}
ret_val = qla8044_poll_flash_status_reg(vha);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb132,
"%s: Poll flash status failed.\n", __func__);
}
return ret_val;
}
/*
* qla8044_flash_write_u32 - Write data to flash
*
* @ha : Pointer to adapter structure
* addr : Flash address to write to
* p_data : Data to be written
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*
* NOTE: Lock should be held on entry
*/
static int
qla8044_flash_write_u32(struct scsi_qla_host *vha, uint32_t addr,
uint32_t *p_data)
{
int ret_val = QLA_SUCCESS;
ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
0x00800000 | (addr >> 2));
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb134,
"%s: Failed write to FLASH_ADDR.\n", __func__);
goto exit_func;
}
ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *p_data);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb135,
"%s: Failed write to FLASH_WRDATA.\n", __func__);
goto exit_func;
}
ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 0x3D);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb136,
"%s: Failed write to FLASH_CONTROL.\n", __func__);
goto exit_func;
}
ret_val = qla8044_poll_flash_status_reg(vha);
if (ret_val) {
ql_log(ql_log_warn, vha, 0xb137,
"%s: Poll flash status failed.\n", __func__);
}
exit_func:
return ret_val;
}
static int
qla8044_write_flash_buffer_mode(scsi_qla_host_t *vha, uint32_t *dwptr,
uint32_t faddr, uint32_t dwords)
{
int ret = QLA_FUNCTION_FAILED;
uint32_t spi_val;
if (dwords < QLA8044_MIN_OPTROM_BURST_DWORDS ||
dwords > QLA8044_MAX_OPTROM_BURST_DWORDS) {
ql_dbg(ql_dbg_user, vha, 0xb123,
"Got unsupported dwords = 0x%x.\n",
dwords);
return QLA_FUNCTION_FAILED;
}
qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, &spi_val);
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
spi_val | QLA8044_FLASH_SPI_CTL);
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
QLA8044_FLASH_FIRST_TEMP_VAL);
/* First DWORD write to FLASH_WRDATA */
ret = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA,
*dwptr++);
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
QLA8044_FLASH_FIRST_MS_PATTERN);
ret = qla8044_poll_flash_status_reg(vha);
if (ret) {
ql_log(ql_log_warn, vha, 0xb124,
"%s: Failed.\n", __func__);
goto exit_func;
}
dwords--;
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
QLA8044_FLASH_SECOND_TEMP_VAL);
/* Second to N-1 DWORDS writes */
while (dwords != 1) {
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++);
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
QLA8044_FLASH_SECOND_MS_PATTERN);
ret = qla8044_poll_flash_status_reg(vha);
if (ret) {
ql_log(ql_log_warn, vha, 0xb129,
"%s: Failed.\n", __func__);
goto exit_func;
}
dwords--;
}
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
QLA8044_FLASH_FIRST_TEMP_VAL | (faddr >> 2));
/* Last DWORD write */
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++);
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
QLA8044_FLASH_LAST_MS_PATTERN);
ret = qla8044_poll_flash_status_reg(vha);
if (ret) {
ql_log(ql_log_warn, vha, 0xb12a,
"%s: Failed.\n", __func__);
goto exit_func;
}
qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_STATUS, &spi_val);
if ((spi_val & QLA8044_FLASH_SPI_CTL) == QLA8044_FLASH_SPI_CTL) {
ql_log(ql_log_warn, vha, 0xb12b,
"%s: Failed.\n", __func__);
spi_val = 0;
/* Operation failed, clear error bit. */
qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
&spi_val);
qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
spi_val | QLA8044_FLASH_SPI_CTL);
}
exit_func:
return ret;
}
static int
qla8044_write_flash_dword_mode(scsi_qla_host_t *vha, uint32_t *dwptr,
uint32_t faddr, uint32_t dwords)
{
int ret = QLA_FUNCTION_FAILED;
uint32_t liter;
for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
ret = qla8044_flash_write_u32(vha, faddr, dwptr);
if (ret) {
ql_dbg(ql_dbg_p3p, vha, 0xb141,
"%s: flash address=%x data=%x.\n", __func__,
faddr, *dwptr);
break;
}
}
return ret;
}
int
qla8044_write_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
int rval = QLA_FUNCTION_FAILED, i, burst_iter_count;
int dword_count, erase_sec_count;
uint32_t erase_offset;
uint8_t *p_cache, *p_src;
erase_offset = offset;
p_cache = kcalloc(length, sizeof(uint8_t), GFP_KERNEL);
if (!p_cache)
return QLA_FUNCTION_FAILED;
memcpy(p_cache, buf, length);
p_src = p_cache;
dword_count = length / sizeof(uint32_t);
/* Since the offset and legth are sector aligned, it will be always
* multiple of burst_iter_count (64)
*/
burst_iter_count = dword_count / QLA8044_MAX_OPTROM_BURST_DWORDS;
erase_sec_count = length / QLA8044_SECTOR_SIZE;
/* Suspend HBA. */
scsi_block_requests(vha->host);
/* Lock and enable write for whole operation. */
qla8044_flash_lock(vha);
qla8044_unprotect_flash(vha);
/* Erasing the sectors */
for (i = 0; i < erase_sec_count; i++) {
rval = qla8044_erase_flash_sector(vha, erase_offset);
ql_dbg(ql_dbg_user, vha, 0xb138,
"Done erase of sector=0x%x.\n",
erase_offset);
if (rval) {
ql_log(ql_log_warn, vha, 0xb121,
"Failed to erase the sector having address: "
"0x%x.\n", erase_offset);
goto out;
}
erase_offset += QLA8044_SECTOR_SIZE;
}
ql_dbg(ql_dbg_user, vha, 0xb13f,
"Got write for addr = 0x%x length=0x%x.\n",
offset, length);
for (i = 0; i < burst_iter_count; i++) {
/* Go with write. */
rval = qla8044_write_flash_buffer_mode(vha, (uint32_t *)p_src,
offset, QLA8044_MAX_OPTROM_BURST_DWORDS);
if (rval) {
/* Buffer Mode failed skip to dword mode */
ql_log(ql_log_warn, vha, 0xb122,
"Failed to write flash in buffer mode, "
"Reverting to slow-write.\n");
rval = qla8044_write_flash_dword_mode(vha,
(uint32_t *)p_src, offset,
QLA8044_MAX_OPTROM_BURST_DWORDS);
}
p_src += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS;
offset += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS;
}
ql_dbg(ql_dbg_user, vha, 0xb133,
"Done writing.\n");
out:
qla8044_protect_flash(vha);
qla8044_flash_unlock(vha);
scsi_unblock_requests(vha->host);
kfree(p_cache);
return rval;
}
#define LEG_INT_PTR_B31 (1 << 31)
#define LEG_INT_PTR_B30 (1 << 30)
#define PF_BITS_MASK (0xF << 16)
/**
* qla8044_intr_handler() - Process interrupts for the ISP8044
* @irq: interrupt number
* @dev_id: SCSI driver HA context
*
* Called by system whenever the host adapter generates an interrupt.
*
* Returns handled flag.
*/
irqreturn_t
qla8044_intr_handler(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
int status = 0;
unsigned long flags;
unsigned long iter;
uint32_t stat;
uint16_t mb[8];
uint32_t leg_int_ptr = 0, pf_bit;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
ql_log(ql_log_info, NULL, 0xb143,
"%s(): NULL response queue pointer\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
vha = pci_get_drvdata(ha->pdev);
if (unlikely(pci_channel_offline(ha->pdev)))
return IRQ_HANDLED;
leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET);
/* Legacy interrupt is valid if bit31 of leg_int_ptr is set */
if (!(leg_int_ptr & (LEG_INT_PTR_B31))) {
ql_dbg(ql_dbg_p3p, vha, 0xb144,
"%s: Legacy Interrupt Bit 31 not set, "
"spurious interrupt!\n", __func__);
return IRQ_NONE;
}
pf_bit = ha->portnum << 16;
/* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */
if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) {
ql_dbg(ql_dbg_p3p, vha, 0xb145,
"%s: Incorrect function ID 0x%x in "
"legacy interrupt register, "
"ha->pf_bit = 0x%x\n", __func__,
(leg_int_ptr & (PF_BITS_MASK)), pf_bit);
return IRQ_NONE;
}
/* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger
* Control register and poll till Legacy Interrupt Pointer register
* bit32 is 0.
*/
qla8044_wr_reg(ha, LEG_INTR_TRIG_OFFSET, 0);
do {
leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET);
if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit)
break;
} while (leg_int_ptr & (LEG_INT_PTR_B30));
reg = &ha->iobase->isp82;
spin_lock_irqsave(&ha->hardware_lock, flags);
for (iter = 1; iter--; ) {
if (rd_reg_dword(®->host_int)) {
stat = rd_reg_dword(®->host_status);
if ((stat & HSRX_RISC_INT) == 0)
break;
switch (stat & 0xff) {
case 0x1:
case 0x2:
case 0x10:
case 0x11:
qla82xx_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
break;
case 0x12:
mb[0] = MSW(stat);
mb[1] = rd_reg_word(®->mailbox_out[1]);
mb[2] = rd_reg_word(®->mailbox_out[2]);
mb[3] = rd_reg_word(®->mailbox_out[3]);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x13:
qla24xx_process_response_queue(vha, rsp);
break;
default:
ql_dbg(ql_dbg_p3p, vha, 0xb146,
"Unrecognized interrupt type "
"(%d).\n", stat & 0xff);
break;
}
}
wrt_reg_dword(®->host_int, 0);
}
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return IRQ_HANDLED;
}
static int
qla8044_idc_dontreset(struct qla_hw_data *ha)
{
uint32_t idc_ctrl;
idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
return idc_ctrl & DONTRESET_BIT0;
}
static void
qla8044_clear_rst_ready(scsi_qla_host_t *vha)
{
uint32_t drv_state;
drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
/*
* For ISP8044, drv_active register has 1 bit per function,
* shift 1 by func_num to set a bit for the function.
* For ISP82xx, drv_active has 4 bits per function
*/
drv_state &= ~(1 << vha->hw->portnum);
ql_dbg(ql_dbg_p3p, vha, 0xb13d,
"drv_state: 0x%08x\n", drv_state);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
}
int
qla8044_abort_isp(scsi_qla_host_t *vha)
{
int rval;
uint32_t dev_state;
struct qla_hw_data *ha = vha->hw;
qla8044_idc_lock(ha);
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
if (ql2xdontresethba)
qla8044_set_idc_dontreset(vha);
/* If device_state is NEED_RESET, go ahead with
* Reset,irrespective of ql2xdontresethba. This is to allow a
* non-reset-owner to force a reset. Non-reset-owner sets
* the IDC_CTRL BIT0 to prevent Reset-owner from doing a Reset
* and then forces a Reset by setting device_state to
* NEED_RESET. */
if (dev_state == QLA8XXX_DEV_READY) {
/* If IDC_CTRL DONTRESETHBA_BIT0 is set don't do reset
* recovery */
if (qla8044_idc_dontreset(ha) == DONTRESET_BIT0) {
ql_dbg(ql_dbg_p3p, vha, 0xb13e,
"Reset recovery disabled\n");
rval = QLA_FUNCTION_FAILED;
goto exit_isp_reset;
}
ql_dbg(ql_dbg_p3p, vha, 0xb140,
"HW State: NEED RESET\n");
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_NEED_RESET);
}
/* For ISP8044, Reset owner is NIC, iSCSI or FCOE based on priority
* and which drivers are present. Unlike ISP82XX, the function setting
* NEED_RESET, may not be the Reset owner. */
qla83xx_reset_ownership(vha);
qla8044_idc_unlock(ha);
rval = qla8044_device_state_handler(vha);
qla8044_idc_lock(ha);
qla8044_clear_rst_ready(vha);
exit_isp_reset:
qla8044_idc_unlock(ha);
if (rval == QLA_SUCCESS) {
ha->flags.isp82xx_fw_hung = 0;
ha->flags.nic_core_reset_hdlr_active = 0;
rval = qla82xx_restart_isp(vha);
}
return rval;
}
void
qla8044_fw_dump(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (!ha->allow_cna_fw_dump)
return;
scsi_block_requests(vha->host);
ha->flags.isp82xx_no_md_cap = 1;
qla8044_idc_lock(ha);
qla82xx_set_reset_owner(vha);
qla8044_idc_unlock(ha);
qla2x00_wait_for_chip_reset(vha);
scsi_unblock_requests(vha->host);
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_nx2.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_gbl.h"
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include "qla_devtbl.h"
#ifdef CONFIG_SPARC
#include <asm/prom.h>
#endif
#include "qla_target.h"
/*
* QLogic ISP2x00 Hardware Support Function Prototypes.
*/
static int qla2x00_isp_firmware(scsi_qla_host_t *);
static int qla2x00_setup_chip(scsi_qla_host_t *);
static int qla2x00_fw_ready(scsi_qla_host_t *);
static int qla2x00_configure_hba(scsi_qla_host_t *);
static int qla2x00_configure_loop(scsi_qla_host_t *);
static int qla2x00_configure_local_loop(scsi_qla_host_t *);
static int qla2x00_configure_fabric(scsi_qla_host_t *);
static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *);
static int qla2x00_restart_isp(scsi_qla_host_t *);
static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
static int qla84xx_init_chip(scsi_qla_host_t *);
static int qla25xx_init_queues(struct qla_hw_data *);
static void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha,
struct event_arg *ea);
static void qla24xx_handle_prli_done_event(struct scsi_qla_host *,
struct event_arg *);
static void __qla24xx_handle_gpdb_event(scsi_qla_host_t *, struct event_arg *);
/* SRB Extensions ---------------------------------------------------------- */
void
qla2x00_sp_timeout(struct timer_list *t)
{
srb_t *sp = from_timer(sp, t, u.iocb_cmd.timer);
struct srb_iocb *iocb;
scsi_qla_host_t *vha = sp->vha;
WARN_ON(irqs_disabled());
iocb = &sp->u.iocb_cmd;
iocb->timeout(sp);
/* ref: TMR */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
if (vha && qla2x00_isp_reg_stat(vha->hw)) {
ql_log(ql_log_info, vha, 0x9008,
"PCI/Register disconnect.\n");
qla_pci_set_eeh_busy(vha);
}
}
void qla2x00_sp_free(srb_t *sp)
{
struct srb_iocb *iocb = &sp->u.iocb_cmd;
del_timer(&iocb->timer);
qla2x00_rel_sp(sp);
}
void qla2xxx_rel_done_warning(srb_t *sp, int res)
{
WARN_ONCE(1, "Calling done() of an already freed srb %p object\n", sp);
}
void qla2xxx_rel_free_warning(srb_t *sp)
{
WARN_ONCE(1, "Calling free() of an already freed srb %p object\n", sp);
}
/* Asynchronous Login/Logout Routines -------------------------------------- */
unsigned long
qla2x00_get_async_timeout(struct scsi_qla_host *vha)
{
unsigned long tmo;
struct qla_hw_data *ha = vha->hw;
/* Firmware should use switch negotiated r_a_tov for timeout. */
tmo = ha->r_a_tov / 10 * 2;
if (IS_QLAFX00(ha)) {
tmo = FX00_DEF_RATOV * 2;
} else if (!IS_FWI2_CAPABLE(ha)) {
/*
* Except for earlier ISPs where the timeout is seeded from the
* initialization control block.
*/
tmo = ha->login_timeout;
}
return tmo;
}
static void qla24xx_abort_iocb_timeout(void *data)
{
srb_t *sp = data;
struct srb_iocb *abt = &sp->u.iocb_cmd;
struct qla_qpair *qpair = sp->qpair;
u32 handle;
unsigned long flags;
int sp_found = 0, cmdsp_found = 0;
if (sp->cmd_sp)
ql_dbg(ql_dbg_async, sp->vha, 0x507c,
"Abort timeout - cmd hdl=%x, cmd type=%x hdl=%x, type=%x\n",
sp->cmd_sp->handle, sp->cmd_sp->type,
sp->handle, sp->type);
else
ql_dbg(ql_dbg_async, sp->vha, 0x507c,
"Abort timeout 2 - hdl=%x, type=%x\n",
sp->handle, sp->type);
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
if (sp->cmd_sp && (qpair->req->outstanding_cmds[handle] ==
sp->cmd_sp)) {
qpair->req->outstanding_cmds[handle] = NULL;
cmdsp_found = 1;
qla_put_fw_resources(qpair, &sp->cmd_sp->iores);
}
/* removing the abort */
if (qpair->req->outstanding_cmds[handle] == sp) {
qpair->req->outstanding_cmds[handle] = NULL;
sp_found = 1;
qla_put_fw_resources(qpair, &sp->iores);
break;
}
}
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
if (cmdsp_found && sp->cmd_sp) {
/*
* This done function should take care of
* original command ref: INIT
*/
sp->cmd_sp->done(sp->cmd_sp, QLA_OS_TIMER_EXPIRED);
}
if (sp_found) {
abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
sp->done(sp, QLA_OS_TIMER_EXPIRED);
}
}
static void qla24xx_abort_sp_done(srb_t *sp, int res)
{
struct srb_iocb *abt = &sp->u.iocb_cmd;
srb_t *orig_sp = sp->cmd_sp;
if (orig_sp)
qla_wait_nvme_release_cmd_kref(orig_sp);
if (sp->flags & SRB_WAKEUP_ON_COMP)
complete(&abt->u.abt.comp);
else
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
{
scsi_qla_host_t *vha = cmd_sp->vha;
struct srb_iocb *abt_iocb;
srb_t *sp;
int rval = QLA_FUNCTION_FAILED;
/* ref: INIT for ABTS command */
sp = qla2xxx_get_qpair_sp(cmd_sp->vha, cmd_sp->qpair, cmd_sp->fcport,
GFP_ATOMIC);
if (!sp)
return QLA_MEMORY_ALLOC_FAILED;
qla_vha_mark_busy(vha);
abt_iocb = &sp->u.iocb_cmd;
sp->type = SRB_ABT_CMD;
sp->name = "abort";
sp->qpair = cmd_sp->qpair;
sp->cmd_sp = cmd_sp;
if (wait)
sp->flags = SRB_WAKEUP_ON_COMP;
init_completion(&abt_iocb->u.abt.comp);
/* FW can send 2 x ABTS's timeout/20s */
qla2x00_init_async_sp(sp, 42, qla24xx_abort_sp_done);
sp->u.iocb_cmd.timeout = qla24xx_abort_iocb_timeout;
abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
abt_iocb->u.abt.req_que_no = cpu_to_le16(cmd_sp->qpair->req->id);
ql_dbg(ql_dbg_async, vha, 0x507c,
"Abort command issued - hdl=%x, type=%x\n", cmd_sp->handle,
cmd_sp->type);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return rval;
}
if (wait) {
wait_for_completion(&abt_iocb->u.abt.comp);
rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
QLA_SUCCESS : QLA_ERR_FROM_FW;
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
return rval;
}
void
qla2x00_async_iocb_timeout(void *data)
{
srb_t *sp = data;
fc_port_t *fcport = sp->fcport;
struct srb_iocb *lio = &sp->u.iocb_cmd;
int rc, h;
unsigned long flags;
if (fcport) {
ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
"Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
} else {
pr_info("Async-%s timeout - hdl=%x.\n",
sp->name, sp->handle);
}
switch (sp->type) {
case SRB_LOGIN_CMD:
rc = qla24xx_async_abort_cmd(sp, false);
if (rc) {
/* Retry as needed. */
lio->u.logio.data[0] = MBS_COMMAND_ERROR;
lio->u.logio.data[1] =
lio->u.logio.flags & SRB_LOGIN_RETRIED ?
QLA_LOGIO_LOGIN_RETRIED : 0;
spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
h++) {
if (sp->qpair->req->outstanding_cmds[h] ==
sp) {
sp->qpair->req->outstanding_cmds[h] =
NULL;
break;
}
}
spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
sp->done(sp, QLA_FUNCTION_TIMEOUT);
}
break;
case SRB_LOGOUT_CMD:
case SRB_CT_PTHRU_CMD:
case SRB_MB_IOCB:
case SRB_NACK_PLOGI:
case SRB_NACK_PRLI:
case SRB_NACK_LOGO:
case SRB_CTRL_VP:
default:
rc = qla24xx_async_abort_cmd(sp, false);
if (rc) {
spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
h++) {
if (sp->qpair->req->outstanding_cmds[h] ==
sp) {
sp->qpair->req->outstanding_cmds[h] =
NULL;
break;
}
}
spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
sp->done(sp, QLA_FUNCTION_TIMEOUT);
}
break;
}
}
static void qla2x00_async_login_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
struct srb_iocb *lio = &sp->u.iocb_cmd;
struct event_arg ea;
ql_dbg(ql_dbg_disc, vha, 0x20dd,
"%s %8phC res %d \n", __func__, sp->fcport->port_name, res);
sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
if (!test_bit(UNLOADING, &vha->dpc_flags)) {
memset(&ea, 0, sizeof(ea));
ea.fcport = sp->fcport;
ea.data[0] = lio->u.logio.data[0];
ea.data[1] = lio->u.logio.data[1];
ea.iop[0] = lio->u.logio.iop[0];
ea.iop[1] = lio->u.logio.iop[1];
ea.sp = sp;
if (res)
ea.data[0] = MBS_COMMAND_ERROR;
qla24xx_handle_plogi_done_event(vha, &ea);
}
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int
qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
uint16_t *data)
{
srb_t *sp;
struct srb_iocb *lio;
int rval = QLA_FUNCTION_FAILED;
if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
fcport->loop_id == FC_NO_LOOP_ID) {
ql_log(ql_log_warn, vha, 0xffff,
"%s: %8phC - not sending command.\n",
__func__, fcport->port_name);
return rval;
}
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
goto done;
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
fcport->flags |= FCF_ASYNC_SENT;
fcport->logout_completed = 0;
sp->type = SRB_LOGIN_CMD;
sp->name = "login";
sp->gen1 = fcport->rscn_gen;
sp->gen2 = fcport->login_gen;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_login_sp_done);
lio = &sp->u.iocb_cmd;
if (N2N_TOPO(fcport->vha->hw) && fcport_is_bigger(fcport)) {
lio->u.logio.flags |= SRB_LOGIN_PRLI_ONLY;
} else {
if (vha->hw->flags.edif_enabled &&
DBELL_ACTIVE(vha)) {
lio->u.logio.flags |=
(SRB_LOGIN_FCSP | SRB_LOGIN_SKIP_PRLI);
} else {
lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
}
}
if (NVME_TARGET(vha->hw, fcport))
lio->u.logio.flags |= SRB_LOGIN_SKIP_PRLI;
rval = qla2x00_start_sp(sp);
ql_dbg(ql_dbg_disc, vha, 0x2072,
"Async-login - %8phC hdl=%x, loopid=%x portid=%06x retries=%d %s.\n",
fcport->port_name, sp->handle, fcport->loop_id,
fcport->d_id.b24, fcport->login_retry,
lio->u.logio.flags & SRB_LOGIN_FCSP ? "FCSP" : "");
if (rval != QLA_SUCCESS) {
fcport->flags |= FCF_LOGIN_NEEDED;
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
goto done_free_sp;
}
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
fcport->flags &= ~FCF_ASYNC_SENT;
done:
fcport->flags &= ~FCF_ASYNC_ACTIVE;
/*
* async login failed. Could be due to iocb/exchange resource
* being low. Set state DELETED for re-login process to start again.
*/
qla2x00_set_fcport_disc_state(fcport, DSC_DELETED);
return rval;
}
static void qla2x00_async_logout_sp_done(srb_t *sp, int res)
{
sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
sp->fcport->login_gen++;
qlt_logo_completion_handler(sp->fcport, sp->u.iocb_cmd.u.logio.data[0]);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int
qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
{
srb_t *sp;
int rval = QLA_FUNCTION_FAILED;
fcport->flags |= FCF_ASYNC_SENT;
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_LOGOUT_CMD;
sp->name = "logout";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_logout_sp_done),
ql_dbg(ql_dbg_disc, vha, 0x2070,
"Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x %8phC explicit %d.\n",
sp->handle, fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa,
fcport->port_name, fcport->explicit_logout);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
return rval;
}
void
qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
uint16_t *data)
{
fcport->flags &= ~FCF_ASYNC_ACTIVE;
/* Don't re-login in target mode */
if (!fcport->tgt_session)
qla2x00_mark_device_lost(vha, fcport, 1);
qlt_logo_completion_handler(fcport, data[0]);
}
static void qla2x00_async_prlo_sp_done(srb_t *sp, int res)
{
struct srb_iocb *lio = &sp->u.iocb_cmd;
struct scsi_qla_host *vha = sp->vha;
sp->fcport->flags &= ~FCF_ASYNC_ACTIVE;
if (!test_bit(UNLOADING, &vha->dpc_flags))
qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
lio->u.logio.data);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int
qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
{
srb_t *sp;
int rval;
rval = QLA_FUNCTION_FAILED;
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_PRLO_CMD;
sp->name = "prlo";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_prlo_sp_done);
ql_dbg(ql_dbg_disc, vha, 0x2070,
"Async-prlo - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
sp->handle, fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
fcport->flags &= ~FCF_ASYNC_ACTIVE;
return rval;
}
static
void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
{
struct fc_port *fcport = ea->fcport;
unsigned long flags;
ql_dbg(ql_dbg_disc, vha, 0x20d2,
"%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
__func__, fcport->port_name, fcport->disc_state,
fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
ea->data[0]);
if (ea->data[0] != MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_disc, vha, 0x2066,
"%s %8phC: adisc fail: post delete\n",
__func__, ea->fcport->port_name);
spin_lock_irqsave(&vha->work_lock, flags);
/* deleted = 0 & logout_on_delete = force fw cleanup */
if (fcport->deleted == QLA_SESS_DELETED)
fcport->deleted = 0;
fcport->logout_on_delete = 1;
spin_unlock_irqrestore(&vha->work_lock, flags);
qlt_schedule_sess_for_deletion(ea->fcport);
return;
}
if (ea->fcport->disc_state == DSC_DELETE_PEND)
return;
if (ea->sp->gen2 != ea->fcport->login_gen) {
/* target side must have changed it. */
ql_dbg(ql_dbg_disc, vha, 0x20d3,
"%s %8phC generation changed\n",
__func__, ea->fcport->port_name);
return;
} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
qla_rscn_replay(fcport);
qlt_schedule_sess_for_deletion(fcport);
return;
}
__qla24xx_handle_gpdb_event(vha, ea);
}
static int qla_post_els_plogi_work(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_ELS_PLOGI);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.fcport.fcport = fcport;
fcport->flags |= FCF_ASYNC_ACTIVE;
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
return qla2x00_post_work(vha, e);
}
static void qla2x00_async_adisc_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
struct event_arg ea;
struct srb_iocb *lio = &sp->u.iocb_cmd;
ql_dbg(ql_dbg_disc, vha, 0x2066,
"Async done-%s res %x %8phC\n",
sp->name, res, sp->fcport->port_name);
sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
memset(&ea, 0, sizeof(ea));
ea.rc = res;
ea.data[0] = lio->u.logio.data[0];
ea.data[1] = lio->u.logio.data[1];
ea.iop[0] = lio->u.logio.iop[0];
ea.iop[1] = lio->u.logio.iop[1];
ea.fcport = sp->fcport;
ea.sp = sp;
if (res)
ea.data[0] = MBS_COMMAND_ERROR;
qla24xx_handle_adisc_event(vha, &ea);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int
qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
uint16_t *data)
{
srb_t *sp;
struct srb_iocb *lio;
int rval = QLA_FUNCTION_FAILED;
if (IS_SESSION_DELETED(fcport)) {
ql_log(ql_log_warn, vha, 0xffff,
"%s: %8phC is being delete - not sending command.\n",
__func__, fcport->port_name);
fcport->flags &= ~FCF_ASYNC_ACTIVE;
return rval;
}
if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
return rval;
fcport->flags |= FCF_ASYNC_SENT;
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_ADISC_CMD;
sp->name = "adisc";
sp->gen1 = fcport->rscn_gen;
sp->gen2 = fcport->login_gen;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_adisc_sp_done);
if (data[1] & QLA_LOGIO_LOGIN_RETRIED) {
lio = &sp->u.iocb_cmd;
lio->u.logio.flags |= SRB_LOGIN_RETRIED;
}
ql_dbg(ql_dbg_disc, vha, 0x206f,
"Async-adisc - hdl=%x loopid=%x portid=%06x %8phC.\n",
sp->handle, fcport->loop_id, fcport->d_id.b24, fcport->port_name);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
qla2x00_post_async_adisc_work(vha, fcport, data);
return rval;
}
static bool qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
{
struct qla_hw_data *ha = vha->hw;
if (IS_FWI2_CAPABLE(ha))
return loop_id > NPH_LAST_HANDLE;
return (loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST;
}
/**
* qla2x00_find_new_loop_id - scan through our port list and find a new usable loop ID
* @vha: adapter state pointer.
* @dev: port structure pointer.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
static int qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
{
int rval;
struct qla_hw_data *ha = vha->hw;
unsigned long flags = 0;
rval = QLA_SUCCESS;
spin_lock_irqsave(&ha->vport_slock, flags);
dev->loop_id = find_first_zero_bit(ha->loop_id_map, LOOPID_MAP_SIZE);
if (dev->loop_id >= LOOPID_MAP_SIZE ||
qla2x00_is_reserved_id(vha, dev->loop_id)) {
dev->loop_id = FC_NO_LOOP_ID;
rval = QLA_FUNCTION_FAILED;
} else {
set_bit(dev->loop_id, ha->loop_id_map);
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
if (rval == QLA_SUCCESS)
ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
"Assigning new loopid=%x, portid=%x.\n",
dev->loop_id, dev->d_id.b24);
else
ql_log(ql_log_warn, dev->vha, 0x2087,
"No loop_id's available, portid=%x.\n",
dev->d_id.b24);
return rval;
}
void qla2x00_clear_loop_id(fc_port_t *fcport)
{
struct qla_hw_data *ha = fcport->vha->hw;
if (fcport->loop_id == FC_NO_LOOP_ID ||
qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
return;
clear_bit(fcport->loop_id, ha->loop_id_map);
fcport->loop_id = FC_NO_LOOP_ID;
}
static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
struct event_arg *ea)
{
fc_port_t *fcport, *conflict_fcport;
struct get_name_list_extended *e;
u16 i, n, found = 0, loop_id;
port_id_t id;
u64 wwn;
u16 data[2];
u8 current_login_state, nvme_cls;
fcport = ea->fcport;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC DS %d LS rc %d %d login %d|%d rscn %d|%d lid %d edif %d\n",
__func__, fcport->port_name, fcport->disc_state,
fcport->fw_login_state, ea->rc,
fcport->login_gen, fcport->last_login_gen,
fcport->rscn_gen, fcport->last_rscn_gen, vha->loop_id, fcport->edif.enable);
if (fcport->disc_state == DSC_DELETE_PEND)
return;
if (ea->rc) { /* rval */
if (fcport->login_retry == 0) {
ql_dbg(ql_dbg_disc, vha, 0x20de,
"GNL failed Port login retry %8phN, retry cnt=%d.\n",
fcport->port_name, fcport->login_retry);
}
return;
}
if (fcport->last_rscn_gen != fcport->rscn_gen) {
qla_rscn_replay(fcport);
qlt_schedule_sess_for_deletion(fcport);
return;
} else if (fcport->last_login_gen != fcport->login_gen) {
ql_dbg(ql_dbg_disc, vha, 0x20e0,
"%s %8phC login gen changed\n",
__func__, fcport->port_name);
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
return;
}
n = ea->data[0] / sizeof(struct get_name_list_extended);
ql_dbg(ql_dbg_disc, vha, 0x20e1,
"%s %d %8phC n %d %02x%02x%02x lid %d \n",
__func__, __LINE__, fcport->port_name, n,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa, fcport->loop_id);
for (i = 0; i < n; i++) {
e = &vha->gnl.l[i];
wwn = wwn_to_u64(e->port_name);
id.b.domain = e->port_id[2];
id.b.area = e->port_id[1];
id.b.al_pa = e->port_id[0];
id.b.rsvd_1 = 0;
if (memcmp((u8 *)&wwn, fcport->port_name, WWN_SIZE))
continue;
if (IS_SW_RESV_ADDR(id))
continue;
found = 1;
loop_id = le16_to_cpu(e->nport_handle);
loop_id = (loop_id & 0x7fff);
nvme_cls = e->current_login_state >> 4;
current_login_state = e->current_login_state & 0xf;
if (PRLI_PHASE(nvme_cls)) {
current_login_state = nvme_cls;
fcport->fc4_type &= ~FS_FC4TYPE_FCP;
fcport->fc4_type |= FS_FC4TYPE_NVME;
} else if (PRLI_PHASE(current_login_state)) {
fcport->fc4_type |= FS_FC4TYPE_FCP;
fcport->fc4_type &= ~FS_FC4TYPE_NVME;
}
ql_dbg(ql_dbg_disc, vha, 0x20e2,
"%s found %8phC CLS [%x|%x] fc4_type %d ID[%06x|%06x] lid[%d|%d]\n",
__func__, fcport->port_name,
e->current_login_state, fcport->fw_login_state,
fcport->fc4_type, id.b24, fcport->d_id.b24,
loop_id, fcport->loop_id);
switch (fcport->disc_state) {
case DSC_DELETE_PEND:
case DSC_DELETED:
break;
default:
if ((id.b24 != fcport->d_id.b24 &&
fcport->d_id.b24 &&
fcport->loop_id != FC_NO_LOOP_ID) ||
(fcport->loop_id != FC_NO_LOOP_ID &&
fcport->loop_id != loop_id)) {
ql_dbg(ql_dbg_disc, vha, 0x20e3,
"%s %d %8phC post del sess\n",
__func__, __LINE__, fcport->port_name);
if (fcport->n2n_flag)
fcport->d_id.b24 = 0;
qlt_schedule_sess_for_deletion(fcport);
return;
}
break;
}
fcport->loop_id = loop_id;
if (fcport->n2n_flag)
fcport->d_id.b24 = id.b24;
wwn = wwn_to_u64(fcport->port_name);
qlt_find_sess_invalidate_other(vha, wwn,
id, loop_id, &conflict_fcport);
if (conflict_fcport) {
/*
* Another share fcport share the same loop_id &
* nport id. Conflict fcport needs to finish
* cleanup before this fcport can proceed to login.
*/
conflict_fcport->conflict = fcport;
fcport->login_pause = 1;
}
switch (vha->hw->current_topology) {
default:
switch (current_login_state) {
case DSC_LS_PRLI_COMP:
ql_dbg(ql_dbg_disc,
vha, 0x20e4, "%s %d %8phC post gpdb\n",
__func__, __LINE__, fcport->port_name);
if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
fcport->port_type = FCT_INITIATOR;
else
fcport->port_type = FCT_TARGET;
data[0] = data[1] = 0;
qla2x00_post_async_adisc_work(vha, fcport,
data);
break;
case DSC_LS_PLOGI_COMP:
if (vha->hw->flags.edif_enabled) {
/* check to see if App support Secure */
qla24xx_post_gpdb_work(vha, fcport, 0);
break;
}
fallthrough;
case DSC_LS_PORT_UNAVAIL:
default:
if (fcport->loop_id == FC_NO_LOOP_ID) {
qla2x00_find_new_loop_id(vha, fcport);
fcport->fw_login_state =
DSC_LS_PORT_UNAVAIL;
}
ql_dbg(ql_dbg_disc, vha, 0x20e5,
"%s %d %8phC\n", __func__, __LINE__,
fcport->port_name);
qla24xx_fcport_handle_login(vha, fcport);
break;
}
break;
case ISP_CFG_N:
fcport->fw_login_state = current_login_state;
fcport->d_id = id;
switch (current_login_state) {
case DSC_LS_PRLI_PEND:
/*
* In the middle of PRLI. Let it finish.
* Allow relogin code to recheck state again
* with GNL. Push disc_state back to DELETED
* so GNL can go out again
*/
qla2x00_set_fcport_disc_state(fcport,
DSC_DELETED);
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
break;
case DSC_LS_PRLI_COMP:
if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
fcport->port_type = FCT_INITIATOR;
else
fcport->port_type = FCT_TARGET;
data[0] = data[1] = 0;
qla2x00_post_async_adisc_work(vha, fcport,
data);
break;
case DSC_LS_PLOGI_COMP:
if (vha->hw->flags.edif_enabled &&
DBELL_ACTIVE(vha)) {
/* check to see if App support secure or not */
qla24xx_post_gpdb_work(vha, fcport, 0);
break;
}
if (fcport_is_bigger(fcport)) {
/* local adapter is smaller */
if (fcport->loop_id != FC_NO_LOOP_ID)
qla2x00_clear_loop_id(fcport);
fcport->loop_id = loop_id;
qla24xx_fcport_handle_login(vha,
fcport);
break;
}
fallthrough;
default:
if (fcport_is_smaller(fcport)) {
/* local adapter is bigger */
if (fcport->loop_id != FC_NO_LOOP_ID)
qla2x00_clear_loop_id(fcport);
fcport->loop_id = loop_id;
qla24xx_fcport_handle_login(vha,
fcport);
}
break;
}
break;
} /* switch (ha->current_topology) */
}
if (!found) {
switch (vha->hw->current_topology) {
case ISP_CFG_F:
case ISP_CFG_FL:
for (i = 0; i < n; i++) {
e = &vha->gnl.l[i];
id.b.domain = e->port_id[0];
id.b.area = e->port_id[1];
id.b.al_pa = e->port_id[2];
id.b.rsvd_1 = 0;
loop_id = le16_to_cpu(e->nport_handle);
if (fcport->d_id.b24 == id.b24) {
conflict_fcport =
qla2x00_find_fcport_by_wwpn(vha,
e->port_name, 0);
if (conflict_fcport) {
ql_dbg(ql_dbg_disc + ql_dbg_verbose,
vha, 0x20e5,
"%s %d %8phC post del sess\n",
__func__, __LINE__,
conflict_fcport->port_name);
qlt_schedule_sess_for_deletion
(conflict_fcport);
}
}
/*
* FW already picked this loop id for
* another fcport
*/
if (fcport->loop_id == loop_id)
fcport->loop_id = FC_NO_LOOP_ID;
}
qla24xx_fcport_handle_login(vha, fcport);
break;
case ISP_CFG_N:
qla2x00_set_fcport_disc_state(fcport, DSC_DELETED);
if (time_after_eq(jiffies, fcport->dm_login_expire)) {
if (fcport->n2n_link_reset_cnt < 2) {
fcport->n2n_link_reset_cnt++;
/*
* remote port is not sending PLOGI.
* Reset link to kick start his state
* machine
*/
set_bit(N2N_LINK_RESET,
&vha->dpc_flags);
} else {
if (fcport->n2n_chip_reset < 1) {
ql_log(ql_log_info, vha, 0x705d,
"Chip reset to bring laser down");
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
fcport->n2n_chip_reset++;
} else {
ql_log(ql_log_info, vha, 0x705d,
"Remote port %8ph is not coming back\n",
fcport->port_name);
fcport->scan_state = 0;
}
}
qla2xxx_wake_dpc(vha);
} else {
/*
* report port suppose to do PLOGI. Give him
* more time. FW will catch it.
*/
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
}
break;
case ISP_CFG_NL:
qla24xx_fcport_handle_login(vha, fcport);
break;
default:
break;
}
}
} /* gnl_event */
static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
unsigned long flags;
struct fc_port *fcport = NULL, *tf;
u16 i, n = 0, loop_id;
struct event_arg ea;
struct get_name_list_extended *e;
u64 wwn;
struct list_head h;
bool found = false;
ql_dbg(ql_dbg_disc, vha, 0x20e7,
"Async done-%s res %x mb[1]=%x mb[2]=%x \n",
sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
sp->u.iocb_cmd.u.mbx.in_mb[2]);
sp->fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
memset(&ea, 0, sizeof(ea));
ea.sp = sp;
ea.rc = res;
if (sp->u.iocb_cmd.u.mbx.in_mb[1] >=
sizeof(struct get_name_list_extended)) {
n = sp->u.iocb_cmd.u.mbx.in_mb[1] /
sizeof(struct get_name_list_extended);
ea.data[0] = sp->u.iocb_cmd.u.mbx.in_mb[1]; /* amnt xfered */
}
for (i = 0; i < n; i++) {
e = &vha->gnl.l[i];
loop_id = le16_to_cpu(e->nport_handle);
/* mask out reserve bit */
loop_id = (loop_id & 0x7fff);
set_bit(loop_id, vha->hw->loop_id_map);
wwn = wwn_to_u64(e->port_name);
ql_dbg(ql_dbg_disc, vha, 0x20e8,
"%s %8phC %02x:%02x:%02x CLS %x/%x lid %x \n",
__func__, &wwn, e->port_id[2], e->port_id[1],
e->port_id[0], e->current_login_state, e->last_login_state,
(loop_id & 0x7fff));
}
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
INIT_LIST_HEAD(&h);
fcport = tf = NULL;
if (!list_empty(&vha->gnl.fcports))
list_splice_init(&vha->gnl.fcports, &h);
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
list_del_init(&fcport->gnl_entry);
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
ea.fcport = fcport;
qla24xx_handle_gnl_done_event(vha, &ea);
}
/* create new fcport if fw has knowledge of new sessions */
for (i = 0; i < n; i++) {
port_id_t id;
u64 wwnn;
e = &vha->gnl.l[i];
wwn = wwn_to_u64(e->port_name);
found = false;
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
if (!memcmp((u8 *)&wwn, fcport->port_name,
WWN_SIZE)) {
found = true;
break;
}
}
id.b.domain = e->port_id[2];
id.b.area = e->port_id[1];
id.b.al_pa = e->port_id[0];
id.b.rsvd_1 = 0;
if (!found && wwn && !IS_SW_RESV_ADDR(id)) {
ql_dbg(ql_dbg_disc, vha, 0x2065,
"%s %d %8phC %06x post new sess\n",
__func__, __LINE__, (u8 *)&wwn, id.b24);
wwnn = wwn_to_u64(e->node_name);
qla24xx_post_newsess_work(vha, &id, (u8 *)&wwn,
(u8 *)&wwnn, NULL, 0);
}
}
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
vha->gnl.sent = 0;
if (!list_empty(&vha->gnl.fcports)) {
/* retrigger gnl */
list_for_each_entry_safe(fcport, tf, &vha->gnl.fcports,
gnl_entry) {
list_del_init(&fcport->gnl_entry);
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
if (qla24xx_post_gnl_work(vha, fcport) == QLA_SUCCESS)
break;
}
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
{
srb_t *sp;
int rval = QLA_FUNCTION_FAILED;
unsigned long flags;
u16 *mb;
if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
goto done;
ql_dbg(ql_dbg_disc, vha, 0x20d9,
"Async-gnlist WWPN %8phC \n", fcport->port_name);
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
fcport->flags |= FCF_ASYNC_SENT;
qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
fcport->last_rscn_gen = fcport->rscn_gen;
fcport->last_login_gen = fcport->login_gen;
list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
if (vha->gnl.sent) {
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
return QLA_SUCCESS;
}
vha->gnl.sent = 1;
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_MB_IOCB;
sp->name = "gnlist";
sp->gen1 = fcport->rscn_gen;
sp->gen2 = fcport->login_gen;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla24xx_async_gnl_sp_done);
mb = sp->u.iocb_cmd.u.mbx.out_mb;
mb[0] = MBC_PORT_NODE_NAME_LIST;
mb[1] = BIT_2 | BIT_3;
mb[2] = MSW(vha->gnl.ldma);
mb[3] = LSW(vha->gnl.ldma);
mb[6] = MSW(MSD(vha->gnl.ldma));
mb[7] = LSW(MSD(vha->gnl.ldma));
mb[8] = vha->gnl.size;
mb[9] = vha->vp_idx;
ql_dbg(ql_dbg_disc, vha, 0x20da,
"Async-%s - OUT WWPN %8phC hndl %x\n",
sp->name, fcport->port_name, sp->handle);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
fcport->flags &= ~(FCF_ASYNC_SENT);
done:
fcport->flags &= ~(FCF_ASYNC_ACTIVE);
return rval;
}
int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_GNL);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.fcport.fcport = fcport;
fcport->flags |= FCF_ASYNC_ACTIVE;
return qla2x00_post_work(vha, e);
}
static void qla24xx_async_gpdb_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
fc_port_t *fcport = sp->fcport;
u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb;
struct event_arg ea;
ql_dbg(ql_dbg_disc, vha, 0x20db,
"Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
sp->name, res, fcport->port_name, mb[1], mb[2]);
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
if (res == QLA_FUNCTION_TIMEOUT)
goto done;
memset(&ea, 0, sizeof(ea));
ea.fcport = fcport;
ea.sp = sp;
qla24xx_handle_gpdb_event(vha, &ea);
done:
dma_pool_free(ha->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
sp->u.iocb_cmd.u.mbx.in_dma);
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_work_evt *e;
if (vha->host->active_mode == MODE_TARGET)
return QLA_FUNCTION_FAILED;
e = qla2x00_alloc_work(vha, QLA_EVT_PRLI);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.fcport.fcport = fcport;
return qla2x00_post_work(vha, e);
}
static void qla2x00_async_prli_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
struct srb_iocb *lio = &sp->u.iocb_cmd;
struct event_arg ea;
ql_dbg(ql_dbg_disc, vha, 0x2129,
"%s %8phC res %x\n", __func__,
sp->fcport->port_name, res);
sp->fcport->flags &= ~FCF_ASYNC_SENT;
if (!test_bit(UNLOADING, &vha->dpc_flags)) {
memset(&ea, 0, sizeof(ea));
ea.fcport = sp->fcport;
ea.data[0] = lio->u.logio.data[0];
ea.data[1] = lio->u.logio.data[1];
ea.iop[0] = lio->u.logio.iop[0];
ea.iop[1] = lio->u.logio.iop[1];
ea.sp = sp;
if (res == QLA_OS_TIMER_EXPIRED)
ea.data[0] = QLA_OS_TIMER_EXPIRED;
else if (res)
ea.data[0] = MBS_COMMAND_ERROR;
qla24xx_handle_prli_done_event(vha, &ea);
}
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int
qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
{
srb_t *sp;
struct srb_iocb *lio;
int rval = QLA_FUNCTION_FAILED;
if (!vha->flags.online) {
ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
__func__, __LINE__, fcport->port_name);
return rval;
}
if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND ||
fcport->fw_login_state == DSC_LS_PRLI_PEND) &&
qla_dual_mode_enabled(vha)) {
ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
__func__, __LINE__, fcport->port_name);
return rval;
}
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
return rval;
fcport->flags |= FCF_ASYNC_SENT;
fcport->logout_completed = 0;
sp->type = SRB_PRLI_CMD;
sp->name = "prli";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_prli_sp_done);
lio = &sp->u.iocb_cmd;
lio->u.logio.flags = 0;
if (NVME_TARGET(vha->hw, fcport))
lio->u.logio.flags |= SRB_LOGIN_NVME_PRLI;
ql_dbg(ql_dbg_disc, vha, 0x211b,
"Async-prli - %8phC hdl=%x, loopid=%x portid=%06x retries=%d fc4type %x priority %x %s.\n",
fcport->port_name, sp->handle, fcport->loop_id, fcport->d_id.b24,
fcport->login_retry, fcport->fc4_type, vha->hw->fc4_type_priority,
NVME_TARGET(vha->hw, fcport) ? "nvme" : "fcp");
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
fcport->flags |= FCF_LOGIN_NEEDED;
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
goto done_free_sp;
}
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
fcport->flags &= ~FCF_ASYNC_SENT;
return rval;
}
int qla24xx_post_gpdb_work(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_GPDB);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.fcport.fcport = fcport;
e->u.fcport.opt = opt;
fcport->flags |= FCF_ASYNC_ACTIVE;
return qla2x00_post_work(vha, e);
}
int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
{
srb_t *sp;
struct srb_iocb *mbx;
int rval = QLA_FUNCTION_FAILED;
u16 *mb;
dma_addr_t pd_dma;
struct port_database_24xx *pd;
struct qla_hw_data *ha = vha->hw;
if (IS_SESSION_DELETED(fcport)) {
ql_log(ql_log_warn, vha, 0xffff,
"%s: %8phC is being delete - not sending command.\n",
__func__, fcport->port_name);
fcport->flags &= ~FCF_ASYNC_ACTIVE;
return rval;
}
if (!vha->flags.online || fcport->flags & FCF_ASYNC_SENT) {
ql_log(ql_log_warn, vha, 0xffff,
"%s: %8phC online %d flags %x - not sending command.\n",
__func__, fcport->port_name, vha->flags.online, fcport->flags);
goto done;
}
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
goto done;
qla2x00_set_fcport_disc_state(fcport, DSC_GPDB);
fcport->flags |= FCF_ASYNC_SENT;
sp->type = SRB_MB_IOCB;
sp->name = "gpdb";
sp->gen1 = fcport->rscn_gen;
sp->gen2 = fcport->login_gen;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla24xx_async_gpdb_sp_done);
pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
if (pd == NULL) {
ql_log(ql_log_warn, vha, 0xd043,
"Failed to allocate port database structure.\n");
goto done_free_sp;
}
mb = sp->u.iocb_cmd.u.mbx.out_mb;
mb[0] = MBC_GET_PORT_DATABASE;
mb[1] = fcport->loop_id;
mb[2] = MSW(pd_dma);
mb[3] = LSW(pd_dma);
mb[6] = MSW(MSD(pd_dma));
mb[7] = LSW(MSD(pd_dma));
mb[9] = vha->vp_idx;
mb[10] = opt;
mbx = &sp->u.iocb_cmd;
mbx->u.mbx.in = (void *)pd;
mbx->u.mbx.in_dma = pd_dma;
ql_dbg(ql_dbg_disc, vha, 0x20dc,
"Async-%s %8phC hndl %x opt %x\n",
sp->name, fcport->port_name, sp->handle, opt);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
return rval;
done_free_sp:
if (pd)
dma_pool_free(ha->s_dma_pool, pd, pd_dma);
kref_put(&sp->cmd_kref, qla2x00_sp_release);
fcport->flags &= ~FCF_ASYNC_SENT;
done:
fcport->flags &= ~FCF_ASYNC_ACTIVE;
qla24xx_post_gpdb_work(vha, fcport, opt);
return rval;
}
static
void __qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
{
unsigned long flags;
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
ea->fcport->login_gen++;
ea->fcport->logout_on_delete = 1;
if (!ea->fcport->login_succ && !IS_SW_RESV_ADDR(ea->fcport->d_id)) {
vha->fcport_count++;
ea->fcport->login_succ = 1;
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
qla24xx_sched_upd_fcport(ea->fcport);
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
} else if (ea->fcport->login_succ) {
/*
* We have an existing session. A late RSCN delivery
* must have triggered the session to be re-validate.
* Session is still valid.
*/
ql_dbg(ql_dbg_disc, vha, 0x20d6,
"%s %d %8phC session revalidate success\n",
__func__, __LINE__, ea->fcport->port_name);
qla2x00_set_fcport_disc_state(ea->fcport, DSC_LOGIN_COMPLETE);
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
}
static int qla_chk_secure_login(scsi_qla_host_t *vha, fc_port_t *fcport,
struct port_database_24xx *pd)
{
int rc = 0;
if (pd->secure_login) {
ql_dbg(ql_dbg_disc, vha, 0x104d,
"Secure Login established on %8phC\n",
fcport->port_name);
fcport->flags |= FCF_FCSP_DEVICE;
} else {
ql_dbg(ql_dbg_disc, vha, 0x104d,
"non-Secure Login %8phC",
fcport->port_name);
fcport->flags &= ~FCF_FCSP_DEVICE;
}
if (vha->hw->flags.edif_enabled) {
if (fcport->flags & FCF_FCSP_DEVICE) {
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_AUTH_PEND);
/* Start edif prli timer & ring doorbell for app */
fcport->edif.rx_sa_set = 0;
fcport->edif.tx_sa_set = 0;
fcport->edif.rx_sa_pending = 0;
fcport->edif.tx_sa_pending = 0;
qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
fcport->d_id.b24);
if (DBELL_ACTIVE(vha)) {
ql_dbg(ql_dbg_disc, vha, 0x20ef,
"%s %d %8phC EDIF: post DB_AUTH: AUTH needed\n",
__func__, __LINE__, fcport->port_name);
fcport->edif.app_sess_online = 1;
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_NEEDED,
fcport->d_id.b24, 0, fcport);
}
rc = 1;
} else if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
ql_dbg(ql_dbg_disc, vha, 0x2117,
"%s %d %8phC post prli\n",
__func__, __LINE__, fcport->port_name);
qla24xx_post_prli_work(vha, fcport);
rc = 1;
}
}
return rc;
}
static
void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
{
fc_port_t *fcport = ea->fcport;
struct port_database_24xx *pd;
struct srb *sp = ea->sp;
uint8_t ls;
pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
fcport->flags &= ~FCF_ASYNC_SENT;
ql_dbg(ql_dbg_disc, vha, 0x20d2,
"%s %8phC DS %d LS %x fc4_type %x rc %x\n", __func__,
fcport->port_name, fcport->disc_state, pd->current_login_state,
fcport->fc4_type, ea->rc);
if (fcport->disc_state == DSC_DELETE_PEND) {
ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC\n",
__func__, __LINE__, fcport->port_name);
return;
}
if (NVME_TARGET(vha->hw, fcport))
ls = pd->current_login_state >> 4;
else
ls = pd->current_login_state & 0xf;
if (ea->sp->gen2 != fcport->login_gen) {
/* target side must have changed it. */
ql_dbg(ql_dbg_disc, vha, 0x20d3,
"%s %8phC generation changed\n",
__func__, fcport->port_name);
return;
} else if (ea->sp->gen1 != fcport->rscn_gen) {
qla_rscn_replay(fcport);
qlt_schedule_sess_for_deletion(fcport);
ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
__func__, __LINE__, fcport->port_name, ls);
return;
}
switch (ls) {
case PDS_PRLI_COMPLETE:
__qla24xx_parse_gpdb(vha, fcport, pd);
break;
case PDS_PLOGI_COMPLETE:
if (qla_chk_secure_login(vha, fcport, pd)) {
ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
__func__, __LINE__, fcport->port_name, ls);
return;
}
fallthrough;
case PDS_PLOGI_PENDING:
case PDS_PRLI_PENDING:
case PDS_PRLI2_PENDING:
/* Set discovery state back to GNL to Relogin attempt */
if (qla_dual_mode_enabled(vha) ||
qla_ini_mode_enabled(vha)) {
qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
}
ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
__func__, __LINE__, fcport->port_name, ls);
return;
case PDS_LOGO_PENDING:
case PDS_PORT_UNAVAILABLE:
default:
ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
__func__, __LINE__, fcport->port_name);
qlt_schedule_sess_for_deletion(fcport);
return;
}
__qla24xx_handle_gpdb_event(vha, ea);
} /* gpdb event */
static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport)
{
u8 login = 0;
int rc;
ql_dbg(ql_dbg_disc, vha, 0x307b,
"%s %8phC DS %d LS %d lid %d retries=%d\n",
__func__, fcport->port_name, fcport->disc_state,
fcport->fw_login_state, fcport->loop_id, fcport->login_retry);
if (qla_tgt_mode_enabled(vha))
return;
if (qla_dual_mode_enabled(vha)) {
if (N2N_TOPO(vha->hw)) {
u64 mywwn, wwn;
mywwn = wwn_to_u64(vha->port_name);
wwn = wwn_to_u64(fcport->port_name);
if (mywwn > wwn)
login = 1;
else if ((fcport->fw_login_state == DSC_LS_PLOGI_COMP)
&& time_after_eq(jiffies,
fcport->plogi_nack_done_deadline))
login = 1;
} else {
login = 1;
}
} else {
/* initiator mode */
login = 1;
}
if (login && fcport->login_retry) {
fcport->login_retry--;
if (fcport->loop_id == FC_NO_LOOP_ID) {
fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
rc = qla2x00_find_new_loop_id(vha, fcport);
if (rc) {
ql_dbg(ql_dbg_disc, vha, 0x20e6,
"%s %d %8phC post del sess - out of loopid\n",
__func__, __LINE__, fcport->port_name);
fcport->scan_state = 0;
qlt_schedule_sess_for_deletion(fcport);
return;
}
}
ql_dbg(ql_dbg_disc, vha, 0x20bf,
"%s %d %8phC post login\n",
__func__, __LINE__, fcport->port_name);
qla2x00_post_async_login_work(vha, fcport, NULL);
}
}
int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
{
u16 data[2];
u16 sec;
ql_dbg(ql_dbg_disc, vha, 0x20d8,
"%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d lid %d scan %d fc4type %x\n",
__func__, fcport->port_name, fcport->disc_state,
fcport->fw_login_state, fcport->login_pause, fcport->flags,
fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
fcport->login_gen, fcport->loop_id, fcport->scan_state,
fcport->fc4_type);
if (fcport->scan_state != QLA_FCPORT_FOUND ||
fcport->disc_state == DSC_DELETE_PEND)
return 0;
if ((fcport->loop_id != FC_NO_LOOP_ID) &&
qla_dual_mode_enabled(vha) &&
((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
(fcport->fw_login_state == DSC_LS_PRLI_PEND)))
return 0;
if (fcport->fw_login_state == DSC_LS_PLOGI_COMP &&
!N2N_TOPO(vha->hw)) {
if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
return 0;
}
}
/* Target won't initiate port login if fabric is present */
if (vha->host->active_mode == MODE_TARGET && !N2N_TOPO(vha->hw))
return 0;
if (fcport->flags & (FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE)) {
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
return 0;
}
switch (fcport->disc_state) {
case DSC_DELETED:
switch (vha->hw->current_topology) {
case ISP_CFG_N:
if (fcport_is_smaller(fcport)) {
/* this adapter is bigger */
if (fcport->login_retry) {
if (fcport->loop_id == FC_NO_LOOP_ID) {
qla2x00_find_new_loop_id(vha,
fcport);
fcport->fw_login_state =
DSC_LS_PORT_UNAVAIL;
}
fcport->login_retry--;
qla_post_els_plogi_work(vha, fcport);
} else {
ql_log(ql_log_info, vha, 0x705d,
"Unable to reach remote port %8phC",
fcport->port_name);
}
} else {
qla24xx_post_gnl_work(vha, fcport);
}
break;
default:
if (fcport->loop_id == FC_NO_LOOP_ID) {
ql_dbg(ql_dbg_disc, vha, 0x20bd,
"%s %d %8phC post gnl\n",
__func__, __LINE__, fcport->port_name);
qla24xx_post_gnl_work(vha, fcport);
} else {
qla_chk_n2n_b4_login(vha, fcport);
}
break;
}
break;
case DSC_GNL:
switch (vha->hw->current_topology) {
case ISP_CFG_N:
if ((fcport->current_login_state & 0xf) == 0x6) {
ql_dbg(ql_dbg_disc, vha, 0x2118,
"%s %d %8phC post GPDB work\n",
__func__, __LINE__, fcport->port_name);
fcport->chip_reset =
vha->hw->base_qpair->chip_reset;
qla24xx_post_gpdb_work(vha, fcport, 0);
} else {
ql_dbg(ql_dbg_disc, vha, 0x2118,
"%s %d %8phC post %s PRLI\n",
__func__, __LINE__, fcport->port_name,
NVME_TARGET(vha->hw, fcport) ? "NVME" :
"FC");
qla24xx_post_prli_work(vha, fcport);
}
break;
default:
if (fcport->login_pause) {
ql_dbg(ql_dbg_disc, vha, 0x20d8,
"%s %d %8phC exit\n",
__func__, __LINE__,
fcport->port_name);
fcport->last_rscn_gen = fcport->rscn_gen;
fcport->last_login_gen = fcport->login_gen;
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
break;
}
qla_chk_n2n_b4_login(vha, fcport);
break;
}
break;
case DSC_LOGIN_FAILED:
if (N2N_TOPO(vha->hw))
qla_chk_n2n_b4_login(vha, fcport);
else
qlt_schedule_sess_for_deletion(fcport);
break;
case DSC_LOGIN_COMPLETE:
/* recheck login state */
data[0] = data[1] = 0;
qla2x00_post_async_adisc_work(vha, fcport, data);
break;
case DSC_LOGIN_PEND:
if (vha->hw->flags.edif_enabled)
break;
if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
ql_dbg(ql_dbg_disc, vha, 0x2118,
"%s %d %8phC post %s PRLI\n",
__func__, __LINE__, fcport->port_name,
NVME_TARGET(vha->hw, fcport) ? "NVME" : "FC");
qla24xx_post_prli_work(vha, fcport);
}
break;
case DSC_UPD_FCPORT:
sec = jiffies_to_msecs(jiffies -
fcport->jiffies_at_registration)/1000;
if (fcport->sec_since_registration < sec && sec &&
!(sec % 60)) {
fcport->sec_since_registration = sec;
ql_dbg(ql_dbg_disc, fcport->vha, 0xffff,
"%s %8phC - Slow Rport registration(%d Sec)\n",
__func__, fcport->port_name, sec);
}
if (fcport->next_disc_state != DSC_DELETE_PEND)
fcport->next_disc_state = DSC_ADISC;
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
break;
default:
break;
}
return 0;
}
int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
u8 *port_name, u8 *node_name, void *pla, u8 fc4_type)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_NEW_SESS);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.new_sess.id = *id;
e->u.new_sess.pla = pla;
e->u.new_sess.fc4_type = fc4_type;
memcpy(e->u.new_sess.port_name, port_name, WWN_SIZE);
if (node_name)
memcpy(e->u.new_sess.node_name, node_name, WWN_SIZE);
return qla2x00_post_work(vha, e);
}
void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
{
fc_port_t *fcport;
unsigned long flags;
switch (ea->id.b.rsvd_1) {
case RSCN_PORT_ADDR:
fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
if (fcport) {
if (ql2xfc2target &&
fcport->flags & FCF_FCP2_DEVICE &&
atomic_read(&fcport->state) == FCS_ONLINE) {
ql_dbg(ql_dbg_disc, vha, 0x2115,
"Delaying session delete for FCP2 portid=%06x %8phC ",
fcport->d_id.b24, fcport->port_name);
return;
}
if (vha->hw->flags.edif_enabled && DBELL_ACTIVE(vha)) {
/*
* On ipsec start by remote port, Target port
* may use RSCN to trigger initiator to
* relogin. If driver is already in the
* process of a relogin, then ignore the RSCN
* and allow the current relogin to continue.
* This reduces thrashing of the connection.
*/
if (atomic_read(&fcport->state) == FCS_ONLINE) {
/*
* If state = online, then set scan_needed=1 to do relogin.
* Otherwise we're already in the middle of a relogin
*/
fcport->scan_needed = 1;
fcport->rscn_gen++;
}
} else {
fcport->scan_needed = 1;
fcport->rscn_gen++;
}
}
break;
case RSCN_AREA_ADDR:
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->flags & FCF_FCP2_DEVICE &&
atomic_read(&fcport->state) == FCS_ONLINE)
continue;
if ((ea->id.b24 & 0xffff00) == (fcport->d_id.b24 & 0xffff00)) {
fcport->scan_needed = 1;
fcport->rscn_gen++;
}
}
break;
case RSCN_DOM_ADDR:
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->flags & FCF_FCP2_DEVICE &&
atomic_read(&fcport->state) == FCS_ONLINE)
continue;
if ((ea->id.b24 & 0xff0000) == (fcport->d_id.b24 & 0xff0000)) {
fcport->scan_needed = 1;
fcport->rscn_gen++;
}
}
break;
case RSCN_FAB_ADDR:
default:
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->flags & FCF_FCP2_DEVICE &&
atomic_read(&fcport->state) == FCS_ONLINE)
continue;
fcport->scan_needed = 1;
fcport->rscn_gen++;
}
break;
}
spin_lock_irqsave(&vha->work_lock, flags);
if (vha->scan.scan_flags == 0) {
ql_dbg(ql_dbg_disc, vha, 0xffff, "%s: schedule\n", __func__);
vha->scan.scan_flags |= SF_QUEUED;
schedule_delayed_work(&vha->scan.scan_work, 5);
}
spin_unlock_irqrestore(&vha->work_lock, flags);
}
void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
struct event_arg *ea)
{
fc_port_t *fcport = ea->fcport;
if (test_bit(UNLOADING, &vha->dpc_flags))
return;
ql_dbg(ql_dbg_disc, vha, 0x2102,
"%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
__func__, fcport->port_name, fcport->disc_state,
fcport->fw_login_state, fcport->login_pause,
fcport->deleted, fcport->conflict,
fcport->last_rscn_gen, fcport->rscn_gen,
fcport->last_login_gen, fcport->login_gen,
fcport->flags);
if (fcport->last_rscn_gen != fcport->rscn_gen) {
ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gnl\n",
__func__, __LINE__, fcport->port_name);
qla24xx_post_gnl_work(vha, fcport);
return;
}
qla24xx_fcport_handle_login(vha, fcport);
}
void qla_handle_els_plogi_done(scsi_qla_host_t *vha,
struct event_arg *ea)
{
if (N2N_TOPO(vha->hw) && fcport_is_smaller(ea->fcport) &&
vha->hw->flags.edif_enabled) {
/* check to see if App support Secure */
qla24xx_post_gpdb_work(vha, ea->fcport, 0);
return;
}
/* for pure Target Mode, PRLI will not be initiated */
if (vha->host->active_mode == MODE_TARGET)
return;
ql_dbg(ql_dbg_disc, vha, 0x2118,
"%s %d %8phC post PRLI\n",
__func__, __LINE__, ea->fcport->port_name);
qla24xx_post_prli_work(vha, ea->fcport);
}
/*
* RSCN(s) came in for this fcport, but the RSCN(s) was not able
* to be consumed by the fcport
*/
void qla_rscn_replay(fc_port_t *fcport)
{
struct event_arg ea;
switch (fcport->disc_state) {
case DSC_DELETE_PEND:
return;
default:
break;
}
if (fcport->scan_needed) {
memset(&ea, 0, sizeof(ea));
ea.id = fcport->d_id;
ea.id.b.rsvd_1 = RSCN_PORT_ADDR;
qla2x00_handle_rscn(fcport->vha, &ea);
}
}
static void
qla2x00_tmf_iocb_timeout(void *data)
{
srb_t *sp = data;
struct srb_iocb *tmf = &sp->u.iocb_cmd;
int rc, h;
unsigned long flags;
if (sp->type == SRB_MARKER)
rc = QLA_FUNCTION_FAILED;
else
rc = qla24xx_async_abort_cmd(sp, false);
if (rc) {
spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
if (sp->qpair->req->outstanding_cmds[h] == sp) {
sp->qpair->req->outstanding_cmds[h] = NULL;
qla_put_fw_resources(sp->qpair, &sp->iores);
break;
}
}
spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
tmf->u.tmf.comp_status = cpu_to_le16(CS_TIMEOUT);
tmf->u.tmf.data = QLA_FUNCTION_FAILED;
complete(&tmf->u.tmf.comp);
}
}
static void qla_marker_sp_done(srb_t *sp, int res)
{
struct srb_iocb *tmf = &sp->u.iocb_cmd;
if (res != QLA_SUCCESS)
ql_dbg(ql_dbg_taskm, sp->vha, 0x8004,
"Async-marker fail hdl=%x portid=%06x ctrl=%x lun=%lld qp=%d.\n",
sp->handle, sp->fcport->d_id.b24, sp->u.iocb_cmd.u.tmf.flags,
sp->u.iocb_cmd.u.tmf.lun, sp->qpair->id);
sp->u.iocb_cmd.u.tmf.data = res;
complete(&tmf->u.tmf.comp);
}
#define START_SP_W_RETRIES(_sp, _rval, _chip_gen, _login_gen) \
{\
int cnt = 5; \
do { \
if (_chip_gen != sp->vha->hw->chip_reset || _login_gen != sp->fcport->login_gen) {\
_rval = EINVAL; \
break; \
} \
_rval = qla2x00_start_sp(_sp); \
if (_rval == EAGAIN) \
msleep(1); \
else \
break; \
cnt--; \
} while (cnt); \
}
/**
* qla26xx_marker: send marker IOCB and wait for the completion of it.
* @arg: pointer to argument list.
* It is assume caller will provide an fcport pointer and modifier
*/
static int
qla26xx_marker(struct tmf_arg *arg)
{
struct scsi_qla_host *vha = arg->vha;
struct srb_iocb *tm_iocb;
srb_t *sp;
int rval = QLA_FUNCTION_FAILED;
fc_port_t *fcport = arg->fcport;
u32 chip_gen, login_gen;
if (TMF_NOT_READY(arg->fcport)) {
ql_dbg(ql_dbg_taskm, vha, 0x8039,
"FC port not ready for marker loop-id=%x portid=%06x modifier=%x lun=%lld qp=%d.\n",
fcport->loop_id, fcport->d_id.b24,
arg->modifier, arg->lun, arg->qpair->id);
return QLA_SUSPENDED;
}
chip_gen = vha->hw->chip_reset;
login_gen = fcport->login_gen;
/* ref: INIT */
sp = qla2xxx_get_qpair_sp(vha, arg->qpair, fcport, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_MARKER;
sp->name = "marker";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha), qla_marker_sp_done);
sp->u.iocb_cmd.timeout = qla2x00_tmf_iocb_timeout;
tm_iocb = &sp->u.iocb_cmd;
init_completion(&tm_iocb->u.tmf.comp);
tm_iocb->u.tmf.modifier = arg->modifier;
tm_iocb->u.tmf.lun = arg->lun;
tm_iocb->u.tmf.loop_id = fcport->loop_id;
tm_iocb->u.tmf.vp_index = vha->vp_idx;
START_SP_W_RETRIES(sp, rval, chip_gen, login_gen);
ql_dbg(ql_dbg_taskm, vha, 0x8006,
"Async-marker hdl=%x loop-id=%x portid=%06x modifier=%x lun=%lld qp=%d rval %d.\n",
sp->handle, fcport->loop_id, fcport->d_id.b24,
arg->modifier, arg->lun, sp->qpair->id, rval);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x8031,
"Marker IOCB send failure (%x).\n", rval);
goto done_free_sp;
}
wait_for_completion(&tm_iocb->u.tmf.comp);
rval = tm_iocb->u.tmf.data;
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x8019,
"Marker failed hdl=%x loop-id=%x portid=%06x modifier=%x lun=%lld qp=%d rval %d.\n",
sp->handle, fcport->loop_id, fcport->d_id.b24,
arg->modifier, arg->lun, sp->qpair->id, rval);
}
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
static void qla2x00_tmf_sp_done(srb_t *sp, int res)
{
struct srb_iocb *tmf = &sp->u.iocb_cmd;
if (res)
tmf->u.tmf.data = res;
complete(&tmf->u.tmf.comp);
}
static int qla_tmf_wait(struct tmf_arg *arg)
{
/* there are only 2 types of error handling that reaches here, lun or target reset */
if (arg->flags & (TCF_LUN_RESET | TCF_ABORT_TASK_SET | TCF_CLEAR_TASK_SET))
return qla2x00_eh_wait_for_pending_commands(arg->vha,
arg->fcport->d_id.b24, arg->lun, WAIT_LUN);
else
return qla2x00_eh_wait_for_pending_commands(arg->vha,
arg->fcport->d_id.b24, arg->lun, WAIT_TARGET);
}
static int
__qla2x00_async_tm_cmd(struct tmf_arg *arg)
{
struct scsi_qla_host *vha = arg->vha;
struct srb_iocb *tm_iocb;
srb_t *sp;
int rval = QLA_FUNCTION_FAILED;
fc_port_t *fcport = arg->fcport;
u32 chip_gen, login_gen;
u64 jif;
if (TMF_NOT_READY(arg->fcport)) {
ql_dbg(ql_dbg_taskm, vha, 0x8032,
"FC port not ready for TM command loop-id=%x portid=%06x modifier=%x lun=%lld qp=%d.\n",
fcport->loop_id, fcport->d_id.b24,
arg->modifier, arg->lun, arg->qpair->id);
return QLA_SUSPENDED;
}
chip_gen = vha->hw->chip_reset;
login_gen = fcport->login_gen;
/* ref: INIT */
sp = qla2xxx_get_qpair_sp(vha, arg->qpair, fcport, GFP_KERNEL);
if (!sp)
goto done;
qla_vha_mark_busy(vha);
sp->type = SRB_TM_CMD;
sp->name = "tmf";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha),
qla2x00_tmf_sp_done);
sp->u.iocb_cmd.timeout = qla2x00_tmf_iocb_timeout;
tm_iocb = &sp->u.iocb_cmd;
init_completion(&tm_iocb->u.tmf.comp);
tm_iocb->u.tmf.flags = arg->flags;
tm_iocb->u.tmf.lun = arg->lun;
START_SP_W_RETRIES(sp, rval, chip_gen, login_gen);
ql_dbg(ql_dbg_taskm, vha, 0x802f,
"Async-tmf hdl=%x loop-id=%x portid=%06x ctrl=%x lun=%lld qp=%d rval=%x.\n",
sp->handle, fcport->loop_id, fcport->d_id.b24,
arg->flags, arg->lun, sp->qpair->id, rval);
if (rval != QLA_SUCCESS)
goto done_free_sp;
wait_for_completion(&tm_iocb->u.tmf.comp);
rval = tm_iocb->u.tmf.data;
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x8030,
"TM IOCB failed (%x).\n", rval);
}
if (!test_bit(UNLOADING, &vha->dpc_flags) && !IS_QLAFX00(vha->hw)) {
jif = jiffies;
if (qla_tmf_wait(arg)) {
ql_log(ql_log_info, vha, 0x803e,
"Waited %u ms Nexus=%ld:%06x:%llu.\n",
jiffies_to_msecs(jiffies - jif), vha->host_no,
fcport->d_id.b24, arg->lun);
}
if (chip_gen == vha->hw->chip_reset && login_gen == fcport->login_gen) {
rval = qla26xx_marker(arg);
} else {
ql_log(ql_log_info, vha, 0x803e,
"Skip Marker due to disruption. Nexus=%ld:%06x:%llu.\n",
vha->host_no, fcport->d_id.b24, arg->lun);
rval = QLA_FUNCTION_FAILED;
}
}
if (tm_iocb->u.tmf.data)
rval = tm_iocb->u.tmf.data;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
static void qla_put_tmf(struct tmf_arg *arg)
{
struct scsi_qla_host *vha = arg->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
ha->active_tmf--;
list_del(&arg->tmf_elem);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
static
int qla_get_tmf(struct tmf_arg *arg)
{
struct scsi_qla_host *vha = arg->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
fc_port_t *fcport = arg->fcport;
int rc = 0;
struct tmf_arg *t;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
list_for_each_entry(t, &ha->tmf_active, tmf_elem) {
if (t->fcport == arg->fcport && t->lun == arg->lun) {
/* reject duplicate TMF */
ql_log(ql_log_warn, vha, 0x802c,
"found duplicate TMF. Nexus=%ld:%06x:%llu.\n",
vha->host_no, fcport->d_id.b24, arg->lun);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return -EINVAL;
}
}
list_add_tail(&arg->tmf_elem, &ha->tmf_pending);
while (ha->active_tmf >= MAX_ACTIVE_TMF) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
msleep(1);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
if (TMF_NOT_READY(fcport)) {
ql_log(ql_log_warn, vha, 0x802c,
"Unable to acquire TM resource due to disruption.\n");
rc = EIO;
break;
}
if (ha->active_tmf < MAX_ACTIVE_TMF &&
list_is_first(&arg->tmf_elem, &ha->tmf_pending))
break;
}
list_del(&arg->tmf_elem);
if (!rc) {
ha->active_tmf++;
list_add_tail(&arg->tmf_elem, &ha->tmf_active);
}
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return rc;
}
int
qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
uint32_t tag)
{
struct scsi_qla_host *vha = fcport->vha;
struct tmf_arg a;
int rval = QLA_SUCCESS;
if (TMF_NOT_READY(fcport))
return QLA_SUSPENDED;
a.vha = fcport->vha;
a.fcport = fcport;
a.lun = lun;
a.flags = flags;
INIT_LIST_HEAD(&a.tmf_elem);
if (flags & (TCF_LUN_RESET|TCF_ABORT_TASK_SET|TCF_CLEAR_TASK_SET|TCF_CLEAR_ACA)) {
a.modifier = MK_SYNC_ID_LUN;
} else {
a.modifier = MK_SYNC_ID;
}
if (qla_get_tmf(&a))
return QLA_FUNCTION_FAILED;
a.qpair = vha->hw->base_qpair;
rval = __qla2x00_async_tm_cmd(&a);
qla_put_tmf(&a);
return rval;
}
int
qla24xx_async_abort_command(srb_t *sp)
{
unsigned long flags = 0;
uint32_t handle;
fc_port_t *fcport = sp->fcport;
struct qla_qpair *qpair = sp->qpair;
struct scsi_qla_host *vha = fcport->vha;
struct req_que *req = qpair->req;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
if (req->outstanding_cmds[handle] == sp)
break;
}
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
if (handle == req->num_outstanding_cmds) {
/* Command not found. */
return QLA_ERR_NOT_FOUND;
}
if (sp->type == SRB_FXIOCB_DCMD)
return qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
FXDISC_ABORT_IOCTL);
return qla24xx_async_abort_cmd(sp, true);
}
static void
qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
{
struct srb *sp;
WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
ea->data[0]);
switch (ea->data[0]) {
case MBS_COMMAND_COMPLETE:
ql_dbg(ql_dbg_disc, vha, 0x2118,
"%s %d %8phC post gpdb\n",
__func__, __LINE__, ea->fcport->port_name);
ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
ea->fcport->logout_on_delete = 1;
ea->fcport->nvme_prli_service_param = ea->iop[0];
if (ea->iop[0] & NVME_PRLI_SP_FIRST_BURST)
ea->fcport->nvme_first_burst_size =
(ea->iop[1] & 0xffff) * 512;
else
ea->fcport->nvme_first_burst_size = 0;
qla24xx_post_gpdb_work(vha, ea->fcport, 0);
break;
default:
sp = ea->sp;
ql_dbg(ql_dbg_disc, vha, 0x2118,
"%s %d %8phC priority %s, fc4type %x prev try %s\n",
__func__, __LINE__, ea->fcport->port_name,
vha->hw->fc4_type_priority == FC4_PRIORITY_FCP ?
"FCP" : "NVMe", ea->fcport->fc4_type,
(sp->u.iocb_cmd.u.logio.flags & SRB_LOGIN_NVME_PRLI) ?
"NVME" : "FCP");
if (NVME_FCP_TARGET(ea->fcport)) {
if (sp->u.iocb_cmd.u.logio.flags & SRB_LOGIN_NVME_PRLI)
ea->fcport->do_prli_nvme = 0;
else
ea->fcport->do_prli_nvme = 1;
} else {
ea->fcport->do_prli_nvme = 0;
}
if (N2N_TOPO(vha->hw)) {
if (ea->fcport->n2n_link_reset_cnt ==
vha->hw->login_retry_count &&
ea->fcport->flags & FCF_FCSP_DEVICE) {
/* remote authentication app just started */
ea->fcport->n2n_link_reset_cnt = 0;
}
if (ea->fcport->n2n_link_reset_cnt <
vha->hw->login_retry_count) {
ea->fcport->n2n_link_reset_cnt++;
vha->relogin_jif = jiffies + 2 * HZ;
/*
* PRLI failed. Reset link to kick start
* state machine
*/
set_bit(N2N_LINK_RESET, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else {
ql_log(ql_log_warn, vha, 0x2119,
"%s %d %8phC Unable to reconnect\n",
__func__, __LINE__,
ea->fcport->port_name);
}
} else {
/*
* switch connect. login failed. Take connection down
* and allow relogin to retrigger
*/
ea->fcport->flags &= ~FCF_ASYNC_SENT;
ea->fcport->keep_nport_handle = 0;
ea->fcport->logout_on_delete = 1;
qlt_schedule_sess_for_deletion(ea->fcport);
}
break;
}
}
void
qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
{
port_id_t cid; /* conflict Nport id */
u16 lid;
struct fc_port *conflict_fcport;
unsigned long flags;
struct fc_port *fcport = ea->fcport;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n",
__func__, fcport->port_name, fcport->disc_state,
fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
ea->sp->gen1, fcport->rscn_gen,
ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
(fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
ql_dbg(ql_dbg_disc, vha, 0x20ea,
"%s %d %8phC Remote is trying to login\n",
__func__, __LINE__, fcport->port_name);
return;
}
if ((fcport->disc_state == DSC_DELETE_PEND) ||
(fcport->disc_state == DSC_DELETED)) {
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
return;
}
if (ea->sp->gen2 != fcport->login_gen) {
/* target side must have changed it. */
ql_dbg(ql_dbg_disc, vha, 0x20d3,
"%s %8phC generation changed\n",
__func__, fcport->port_name);
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
return;
} else if (ea->sp->gen1 != fcport->rscn_gen) {
ql_dbg(ql_dbg_disc, vha, 0x20d3,
"%s %8phC RSCN generation changed\n",
__func__, fcport->port_name);
qla_rscn_replay(fcport);
qlt_schedule_sess_for_deletion(fcport);
return;
}
WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
ea->data[0]);
switch (ea->data[0]) {
case MBS_COMMAND_COMPLETE:
/*
* Driver must validate login state - If PRLI not complete,
* force a relogin attempt via implicit LOGO, PLOGI, and PRLI
* requests.
*/
if (vha->hw->flags.edif_enabled) {
set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
ea->fcport->logout_on_delete = 1;
ea->fcport->send_els_logo = 0;
ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
qla24xx_post_gpdb_work(vha, ea->fcport, 0);
} else {
if (NVME_TARGET(vha->hw, fcport)) {
ql_dbg(ql_dbg_disc, vha, 0x2117,
"%s %d %8phC post prli\n",
__func__, __LINE__, fcport->port_name);
qla24xx_post_prli_work(vha, fcport);
} else {
ql_dbg(ql_dbg_disc, vha, 0x20ea,
"%s %d %8phC LoopID 0x%x in use with %06x. post gpdb\n",
__func__, __LINE__, fcport->port_name,
fcport->loop_id, fcport->d_id.b24);
set_bit(fcport->loop_id, vha->hw->loop_id_map);
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
fcport->chip_reset = vha->hw->base_qpair->chip_reset;
fcport->logout_on_delete = 1;
fcport->send_els_logo = 0;
fcport->fw_login_state = DSC_LS_PRLI_COMP;
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
qla24xx_post_gpdb_work(vha, fcport, 0);
}
}
break;
case MBS_COMMAND_ERROR:
ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %d %8phC cmd error %x\n",
__func__, __LINE__, ea->fcport->port_name, ea->data[1]);
qlt_schedule_sess_for_deletion(ea->fcport);
break;
case MBS_LOOP_ID_USED:
/* data[1] = IO PARAM 1 = nport ID */
cid.b.domain = (ea->iop[1] >> 16) & 0xff;
cid.b.area = (ea->iop[1] >> 8) & 0xff;
cid.b.al_pa = ea->iop[1] & 0xff;
cid.b.rsvd_1 = 0;
ql_dbg(ql_dbg_disc, vha, 0x20ec,
"%s %d %8phC lid %#x in use with pid %06x post gnl\n",
__func__, __LINE__, ea->fcport->port_name,
ea->fcport->loop_id, cid.b24);
set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
ea->fcport->loop_id = FC_NO_LOOP_ID;
qla24xx_post_gnl_work(vha, ea->fcport);
break;
case MBS_PORT_ID_USED:
lid = ea->iop[1] & 0xffff;
qlt_find_sess_invalidate_other(vha,
wwn_to_u64(ea->fcport->port_name),
ea->fcport->d_id, lid, &conflict_fcport);
if (conflict_fcport) {
/*
* Another fcport share the same loop_id/nport id.
* Conflict fcport needs to finish cleanup before this
* fcport can proceed to login.
*/
conflict_fcport->conflict = ea->fcport;
ea->fcport->login_pause = 1;
ql_dbg(ql_dbg_disc, vha, 0x20ed,
"%s %d %8phC NPortId %06x inuse with loopid 0x%x.\n",
__func__, __LINE__, ea->fcport->port_name,
ea->fcport->d_id.b24, lid);
} else {
ql_dbg(ql_dbg_disc, vha, 0x20ed,
"%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
__func__, __LINE__, ea->fcport->port_name,
ea->fcport->d_id.b24, lid);
qla2x00_clear_loop_id(ea->fcport);
set_bit(lid, vha->hw->loop_id_map);
ea->fcport->loop_id = lid;
ea->fcport->keep_nport_handle = 0;
ea->fcport->logout_on_delete = 1;
qlt_schedule_sess_for_deletion(ea->fcport);
}
break;
}
return;
}
/****************************************************************************/
/* QLogic ISP2x00 Hardware Support Functions. */
/****************************************************************************/
static int
qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
uint32_t idc_major_ver, idc_minor_ver;
uint16_t config[4];
qla83xx_idc_lock(vha, 0);
/* SV: TODO: Assign initialization timeout from
* flash-info / other param
*/
ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
/* Set our fcoe function presence */
if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
ql_dbg(ql_dbg_p3p, vha, 0xb077,
"Error while setting DRV-Presence.\n");
rval = QLA_FUNCTION_FAILED;
goto exit;
}
/* Decide the reset ownership */
qla83xx_reset_ownership(vha);
/*
* On first protocol driver load:
* Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
* register.
* Others: Check compatibility with current IDC Major version.
*/
qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
if (ha->flags.nic_core_reset_owner) {
/* Set IDC Major version */
idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
/* Clearing IDC-Lock-Recovery register */
qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
/*
* Clear further IDC participation if we are not compatible with
* the current IDC Major Version.
*/
ql_log(ql_log_warn, vha, 0xb07d,
"Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
__qla83xx_clear_drv_presence(vha);
rval = QLA_FUNCTION_FAILED;
goto exit;
}
/* Each function sets its supported Minor version. */
qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
if (ha->flags.nic_core_reset_owner) {
memset(config, 0, sizeof(config));
if (!qla81xx_get_port_config(vha, config))
qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
QLA8XXX_DEV_READY);
}
rval = qla83xx_idc_state_handler(vha);
exit:
qla83xx_idc_unlock(vha, 0);
return rval;
}
/*
* qla2x00_initialize_adapter
* Initialize board.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_initialize_adapter(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
/* Clear adapter flags. */
vha->flags.online = 0;
ha->flags.chip_reset_done = 0;
vha->flags.reset_active = 0;
ha->flags.pci_channel_io_perm_failure = 0;
ha->flags.eeh_busy = 0;
vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
atomic_set(&vha->loop_state, LOOP_DOWN);
vha->device_flags = DFLG_NO_CABLE;
vha->dpc_flags = 0;
vha->flags.management_server_logged_in = 0;
vha->marker_needed = 0;
ha->isp_abort_cnt = 0;
ha->beacon_blink_led = 0;
set_bit(0, ha->req_qid_map);
set_bit(0, ha->rsp_qid_map);
ql_dbg(ql_dbg_init, vha, 0x0040,
"Configuring PCI space...\n");
rval = ha->isp_ops->pci_config(vha);
if (rval) {
ql_log(ql_log_warn, vha, 0x0044,
"Unable to configure PCI space.\n");
return (rval);
}
ha->isp_ops->reset_chip(vha);
/* Check for secure flash support */
if (IS_QLA28XX(ha)) {
if (rd_reg_word(®->mailbox12) & BIT_0)
ha->flags.secure_adapter = 1;
ql_log(ql_log_info, vha, 0xffff, "Secure Adapter: %s\n",
(ha->flags.secure_adapter) ? "Yes" : "No");
}
rval = qla2xxx_get_flash_info(vha);
if (rval) {
ql_log(ql_log_fatal, vha, 0x004f,
"Unable to validate FLASH data.\n");
return rval;
}
if (IS_QLA8044(ha)) {
qla8044_read_reset_template(vha);
/* NOTE: If ql2xdontresethba==1, set IDC_CTRL DONTRESET_BIT0.
* If DONRESET_BIT0 is set, drivers should not set dev_state
* to NEED_RESET. But if NEED_RESET is set, drivers should
* should honor the reset. */
if (ql2xdontresethba == 1)
qla8044_set_idc_dontreset(vha);
}
ha->isp_ops->get_flash_version(vha, req->ring);
ql_dbg(ql_dbg_init, vha, 0x0061,
"Configure NVRAM parameters...\n");
/* Let priority default to FCP, can be overridden by nvram_config */
ha->fc4_type_priority = FC4_PRIORITY_FCP;
ha->isp_ops->nvram_config(vha);
if (ha->fc4_type_priority != FC4_PRIORITY_FCP &&
ha->fc4_type_priority != FC4_PRIORITY_NVME)
ha->fc4_type_priority = FC4_PRIORITY_FCP;
ql_log(ql_log_info, vha, 0xffff, "FC4 priority set to %s\n",
ha->fc4_type_priority == FC4_PRIORITY_FCP ? "FCP" : "NVMe");
if (ha->flags.disable_serdes) {
/* Mask HBA via NVRAM settings? */
ql_log(ql_log_info, vha, 0x0077,
"Masking HBA WWPN %8phN (via NVRAM).\n", vha->port_name);
return QLA_FUNCTION_FAILED;
}
ql_dbg(ql_dbg_init, vha, 0x0078,
"Verifying loaded RISC code...\n");
/* If smartsan enabled then require fdmi and rdp enabled */
if (ql2xsmartsan) {
ql2xfdmienable = 1;
ql2xrdpenable = 1;
}
if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
rval = ha->isp_ops->chip_diag(vha);
if (rval)
return (rval);
rval = qla2x00_setup_chip(vha);
if (rval)
return (rval);
}
if (IS_QLA84XX(ha)) {
ha->cs84xx = qla84xx_get_chip(vha);
if (!ha->cs84xx) {
ql_log(ql_log_warn, vha, 0x00d0,
"Unable to configure ISP84XX.\n");
return QLA_FUNCTION_FAILED;
}
}
if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha))
rval = qla2x00_init_rings(vha);
/* No point in continuing if firmware initialization failed. */
if (rval != QLA_SUCCESS)
return rval;
ha->flags.chip_reset_done = 1;
if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
/* Issue verify 84xx FW IOCB to complete 84xx initialization */
rval = qla84xx_init_chip(vha);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x00d4,
"Unable to initialize ISP84XX.\n");
qla84xx_put_chip(vha);
}
}
/* Load the NIC Core f/w if we are the first protocol driver. */
if (IS_QLA8031(ha)) {
rval = qla83xx_nic_core_fw_load(vha);
if (rval)
ql_log(ql_log_warn, vha, 0x0124,
"Error in initializing NIC Core f/w.\n");
}
if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
qla24xx_read_fcp_prio_cfg(vha);
if (IS_P3P_TYPE(ha))
qla82xx_set_driver_version(vha, QLA2XXX_VERSION);
else
qla25xx_set_driver_version(vha, QLA2XXX_VERSION);
return (rval);
}
/**
* qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2100_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
pci_disable_rom(ha->pdev);
/* Get PCI bus information. */
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->pci_attr = rd_reg_word(®->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
}
/**
* qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2300_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
unsigned long flags = 0;
uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
if (IS_QLA2322(ha) || IS_QLA6322(ha))
w &= ~PCI_COMMAND_INTX_DISABLE;
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
/*
* If this is a 2300 card and not 2312, reset the
* COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
* the 2310 also reports itself as a 2300 so we need to get the
* fb revision level -- a 6 indicates it really is a 2300 and
* not a 2310.
*/
if (IS_QLA2300(ha)) {
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Pause RISC. */
wrt_reg_word(®->hccr, HCCR_PAUSE_RISC);
for (cnt = 0; cnt < 30000; cnt++) {
if ((rd_reg_word(®->hccr) & HCCR_RISC_PAUSE) != 0)
break;
udelay(10);
}
/* Select FPM registers. */
wrt_reg_word(®->ctrl_status, 0x20);
rd_reg_word(®->ctrl_status);
/* Get the fb rev level */
ha->fb_rev = RD_FB_CMD_REG(ha, reg);
if (ha->fb_rev == FPM_2300)
pci_clear_mwi(ha->pdev);
/* Deselect FPM registers. */
wrt_reg_word(®->ctrl_status, 0x0);
rd_reg_word(®->ctrl_status);
/* Release RISC module. */
wrt_reg_word(®->hccr, HCCR_RELEASE_RISC);
for (cnt = 0; cnt < 30000; cnt++) {
if ((rd_reg_word(®->hccr) & HCCR_RISC_PAUSE) == 0)
break;
udelay(10);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
pci_disable_rom(ha->pdev);
/* Get PCI bus information. */
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->pci_attr = rd_reg_word(®->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
}
/**
* qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla24xx_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
w &= ~PCI_COMMAND_INTX_DISABLE;
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
pcix_set_mmrbc(ha->pdev, 2048);
/* PCIe -- adjust Maximum Read Request Size (2048). */
if (pci_is_pcie(ha->pdev))
pcie_set_readrq(ha->pdev, 4096);
pci_disable_rom(ha->pdev);
ha->chip_revision = ha->pdev->revision;
/* Get PCI bus information. */
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->pci_attr = rd_reg_dword(®->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
}
/**
* qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla25xx_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
struct qla_hw_data *ha = vha->hw;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
w &= ~PCI_COMMAND_INTX_DISABLE;
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
/* PCIe -- adjust Maximum Read Request Size (2048). */
if (pci_is_pcie(ha->pdev))
pcie_set_readrq(ha->pdev, 4096);
pci_disable_rom(ha->pdev);
ha->chip_revision = ha->pdev->revision;
return QLA_SUCCESS;
}
/**
* qla2x00_isp_firmware() - Choose firmware image.
* @vha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_isp_firmware(scsi_qla_host_t *vha)
{
int rval;
uint16_t loop_id, topo, sw_cap;
uint8_t domain, area, al_pa;
struct qla_hw_data *ha = vha->hw;
/* Assume loading risc code */
rval = QLA_FUNCTION_FAILED;
if (ha->flags.disable_risc_code_load) {
ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
/* Verify checksum of loaded RISC code. */
rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
if (rval == QLA_SUCCESS) {
/* And, verify we are not in ROM code. */
rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
&area, &domain, &topo, &sw_cap);
}
}
if (rval)
ql_dbg(ql_dbg_init, vha, 0x007a,
"**** Load RISC code ****.\n");
return (rval);
}
/**
* qla2x00_reset_chip() - Reset ISP chip.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2x00_reset_chip(scsi_qla_host_t *vha)
{
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
uint32_t cnt;
uint16_t cmd;
int rval = QLA_FUNCTION_FAILED;
if (unlikely(pci_channel_offline(ha->pdev)))
return rval;
ha->isp_ops->disable_intrs(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Turn off master enable */
cmd = 0;
pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
cmd &= ~PCI_COMMAND_MASTER;
pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
if (!IS_QLA2100(ha)) {
/* Pause RISC. */
wrt_reg_word(®->hccr, HCCR_PAUSE_RISC);
if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
for (cnt = 0; cnt < 30000; cnt++) {
if ((rd_reg_word(®->hccr) &
HCCR_RISC_PAUSE) != 0)
break;
udelay(100);
}
} else {
rd_reg_word(®->hccr); /* PCI Posting. */
udelay(10);
}
/* Select FPM registers. */
wrt_reg_word(®->ctrl_status, 0x20);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
/* FPM Soft Reset. */
wrt_reg_word(®->fpm_diag_config, 0x100);
rd_reg_word(®->fpm_diag_config); /* PCI Posting. */
/* Toggle Fpm Reset. */
if (!IS_QLA2200(ha)) {
wrt_reg_word(®->fpm_diag_config, 0x0);
rd_reg_word(®->fpm_diag_config); /* PCI Posting. */
}
/* Select frame buffer registers. */
wrt_reg_word(®->ctrl_status, 0x10);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
/* Reset frame buffer FIFOs. */
if (IS_QLA2200(ha)) {
WRT_FB_CMD_REG(ha, reg, 0xa000);
RD_FB_CMD_REG(ha, reg); /* PCI Posting. */
} else {
WRT_FB_CMD_REG(ha, reg, 0x00fc);
/* Read back fb_cmd until zero or 3 seconds max */
for (cnt = 0; cnt < 3000; cnt++) {
if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
break;
udelay(100);
}
}
/* Select RISC module registers. */
wrt_reg_word(®->ctrl_status, 0);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
/* Reset RISC processor. */
wrt_reg_word(®->hccr, HCCR_RESET_RISC);
rd_reg_word(®->hccr); /* PCI Posting. */
/* Release RISC processor. */
wrt_reg_word(®->hccr, HCCR_RELEASE_RISC);
rd_reg_word(®->hccr); /* PCI Posting. */
}
wrt_reg_word(®->hccr, HCCR_CLR_RISC_INT);
wrt_reg_word(®->hccr, HCCR_CLR_HOST_INT);
/* Reset ISP chip. */
wrt_reg_word(®->ctrl_status, CSR_ISP_SOFT_RESET);
/* Wait for RISC to recover from reset. */
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
/*
* It is necessary to for a delay here since the card doesn't
* respond to PCI reads during a reset. On some architectures
* this will result in an MCA.
*/
udelay(20);
for (cnt = 30000; cnt; cnt--) {
if ((rd_reg_word(®->ctrl_status) &
CSR_ISP_SOFT_RESET) == 0)
break;
udelay(100);
}
} else
udelay(10);
/* Reset RISC processor. */
wrt_reg_word(®->hccr, HCCR_RESET_RISC);
wrt_reg_word(®->semaphore, 0);
/* Release RISC processor. */
wrt_reg_word(®->hccr, HCCR_RELEASE_RISC);
rd_reg_word(®->hccr); /* PCI Posting. */
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
for (cnt = 0; cnt < 30000; cnt++) {
if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
break;
udelay(100);
}
} else
udelay(100);
/* Turn on master enable */
cmd |= PCI_COMMAND_MASTER;
pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
/* Disable RISC pause on FPM parity error. */
if (!IS_QLA2100(ha)) {
wrt_reg_word(®->hccr, HCCR_DISABLE_PARITY_PAUSE);
rd_reg_word(®->hccr); /* PCI Posting. */
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
}
/**
* qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
* @vha: HA context
*
* Returns 0 on success.
*/
static int
qla81xx_reset_mpi(scsi_qla_host_t *vha)
{
uint16_t mb[4] = {0x1010, 0, 1, 0};
if (!IS_QLA81XX(vha->hw))
return QLA_SUCCESS;
return qla81xx_write_mpi_register(vha, mb);
}
static int
qla_chk_risc_recovery(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
__le16 __iomem *mbptr = ®->mailbox0;
int i;
u16 mb[32];
int rc = QLA_SUCCESS;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return rc;
/* this check is only valid after RISC reset */
mb[0] = rd_reg_word(mbptr);
mbptr++;
if (mb[0] == 0xf) {
rc = QLA_FUNCTION_FAILED;
for (i = 1; i < 32; i++) {
mb[i] = rd_reg_word(mbptr);
mbptr++;
}
ql_log(ql_log_warn, vha, 0x1015,
"RISC reset failed. mb[0-7] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6], mb[7]);
ql_log(ql_log_warn, vha, 0x1015,
"RISC reset failed. mb[8-15] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
mb[8], mb[9], mb[10], mb[11], mb[12], mb[13], mb[14],
mb[15]);
ql_log(ql_log_warn, vha, 0x1015,
"RISC reset failed. mb[16-23] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
mb[16], mb[17], mb[18], mb[19], mb[20], mb[21], mb[22],
mb[23]);
ql_log(ql_log_warn, vha, 0x1015,
"RISC reset failed. mb[24-31] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
mb[24], mb[25], mb[26], mb[27], mb[28], mb[29], mb[30],
mb[31]);
}
return rc;
}
/**
* qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
* @vha: HA context
*
* Returns 0 on success.
*/
static inline int
qla24xx_reset_risc(scsi_qla_host_t *vha)
{
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
uint32_t cnt;
uint16_t wd;
static int abts_cnt; /* ISP abort retry counts */
int rval = QLA_SUCCESS;
int print = 1;
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Reset RISC. */
wrt_reg_dword(®->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
for (cnt = 0; cnt < 30000; cnt++) {
if ((rd_reg_dword(®->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
break;
udelay(10);
}
if (!(rd_reg_dword(®->ctrl_status) & CSRX_DMA_ACTIVE))
set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017e,
"HCCR: 0x%x, Control Status %x, DMA active status:0x%x\n",
rd_reg_dword(®->hccr),
rd_reg_dword(®->ctrl_status),
(rd_reg_dword(®->ctrl_status) & CSRX_DMA_ACTIVE));
wrt_reg_dword(®->ctrl_status,
CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
udelay(100);
/* Wait for firmware to complete NVRAM accesses. */
rd_reg_word(®->mailbox0);
for (cnt = 10000; rd_reg_word(®->mailbox0) != 0 &&
rval == QLA_SUCCESS; cnt--) {
barrier();
if (cnt)
udelay(5);
else
rval = QLA_FUNCTION_TIMEOUT;
}
if (rval == QLA_SUCCESS)
set_bit(ISP_MBX_RDY, &ha->fw_dump_cap_flags);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017f,
"HCCR: 0x%x, MailBox0 Status 0x%x\n",
rd_reg_dword(®->hccr),
rd_reg_word(®->mailbox0));
/* Wait for soft-reset to complete. */
rd_reg_dword(®->ctrl_status);
for (cnt = 0; cnt < 60; cnt++) {
barrier();
if ((rd_reg_dword(®->ctrl_status) &
CSRX_ISP_SOFT_RESET) == 0)
break;
udelay(5);
}
if (!(rd_reg_dword(®->ctrl_status) & CSRX_ISP_SOFT_RESET))
set_bit(ISP_SOFT_RESET_CMPL, &ha->fw_dump_cap_flags);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015d,
"HCCR: 0x%x, Soft Reset status: 0x%x\n",
rd_reg_dword(®->hccr),
rd_reg_dword(®->ctrl_status));
/* If required, do an MPI FW reset now */
if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
if (++abts_cnt < 5) {
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
} else {
/*
* We exhausted the ISP abort retries. We have to
* set the board offline.
*/
abts_cnt = 0;
vha->flags.online = 0;
}
}
}
wrt_reg_dword(®->hccr, HCCRX_SET_RISC_RESET);
rd_reg_dword(®->hccr);
wrt_reg_dword(®->hccr, HCCRX_REL_RISC_PAUSE);
rd_reg_dword(®->hccr);
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_RESET);
mdelay(10);
rd_reg_dword(®->hccr);
wd = rd_reg_word(®->mailbox0);
for (cnt = 300; wd != 0 && rval == QLA_SUCCESS; cnt--) {
barrier();
if (cnt) {
mdelay(1);
if (print && qla_chk_risc_recovery(vha))
print = 0;
wd = rd_reg_word(®->mailbox0);
} else {
rval = QLA_FUNCTION_TIMEOUT;
ql_log(ql_log_warn, vha, 0x015e,
"RISC reset timeout\n");
}
}
if (rval == QLA_SUCCESS)
set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015e,
"Host Risc 0x%x, mailbox0 0x%x\n",
rd_reg_dword(®->hccr),
rd_reg_word(®->mailbox0));
spin_unlock_irqrestore(&ha->hardware_lock, flags);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015f,
"Driver in %s mode\n",
IS_NOPOLLING_TYPE(ha) ? "Interrupt" : "Polling");
if (IS_NOPOLLING_TYPE(ha))
ha->isp_ops->enable_intrs(ha);
return rval;
}
static void
qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
{
struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
wrt_reg_dword(®->iobase_addr, RISC_REGISTER_BASE_OFFSET);
*data = rd_reg_dword(®->iobase_window + RISC_REGISTER_WINDOW_OFFSET);
}
static void
qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
{
struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
wrt_reg_dword(®->iobase_addr, RISC_REGISTER_BASE_OFFSET);
wrt_reg_dword(®->iobase_window + RISC_REGISTER_WINDOW_OFFSET, data);
}
static void
qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
{
uint32_t wd32 = 0;
uint delta_msec = 100;
uint elapsed_msec = 0;
uint timeout_msec;
ulong n;
if (vha->hw->pdev->subsystem_device != 0x0175 &&
vha->hw->pdev->subsystem_device != 0x0240)
return;
wrt_reg_dword(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
udelay(100);
attempt:
timeout_msec = TIMEOUT_SEMAPHORE;
n = timeout_msec / delta_msec;
while (n--) {
qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
qla25xx_read_risc_sema_reg(vha, &wd32);
if (wd32 & RISC_SEMAPHORE)
break;
msleep(delta_msec);
elapsed_msec += delta_msec;
if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
goto force;
}
if (!(wd32 & RISC_SEMAPHORE))
goto force;
if (!(wd32 & RISC_SEMAPHORE_FORCE))
goto acquired;
qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
n = timeout_msec / delta_msec;
while (n--) {
qla25xx_read_risc_sema_reg(vha, &wd32);
if (!(wd32 & RISC_SEMAPHORE_FORCE))
break;
msleep(delta_msec);
elapsed_msec += delta_msec;
if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
goto force;
}
if (wd32 & RISC_SEMAPHORE_FORCE)
qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
goto attempt;
force:
qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
acquired:
return;
}
/**
* qla24xx_reset_chip() - Reset ISP24xx chip.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla24xx_reset_chip(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_FUNCTION_FAILED;
if (pci_channel_offline(ha->pdev) &&
ha->flags.pci_channel_io_perm_failure) {
return rval;
}
ha->isp_ops->disable_intrs(ha);
qla25xx_manipulate_risc_semaphore(vha);
/* Perform RISC reset. */
rval = qla24xx_reset_risc(vha);
return rval;
}
/**
* qla2x00_chip_diag() - Test chip for proper operation.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2x00_chip_diag(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
unsigned long flags = 0;
uint16_t data;
uint32_t cnt;
uint16_t mb[5];
struct req_que *req = ha->req_q_map[0];
/* Assume a failed state */
rval = QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_init, vha, 0x007b, "Testing device at %p.\n",
®->flash_address);
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Reset ISP chip. */
wrt_reg_word(®->ctrl_status, CSR_ISP_SOFT_RESET);
/*
* We need to have a delay here since the card will not respond while
* in reset causing an MCA on some architectures.
*/
udelay(20);
data = qla2x00_debounce_register(®->ctrl_status);
for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
udelay(5);
data = rd_reg_word(®->ctrl_status);
barrier();
}
if (!cnt)
goto chip_diag_failed;
ql_dbg(ql_dbg_init, vha, 0x007c,
"Reset register cleared by chip reset.\n");
/* Reset RISC processor. */
wrt_reg_word(®->hccr, HCCR_RESET_RISC);
wrt_reg_word(®->hccr, HCCR_RELEASE_RISC);
/* Workaround for QLA2312 PCI parity error */
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
udelay(5);
data = RD_MAILBOX_REG(ha, reg, 0);
barrier();
}
} else
udelay(10);
if (!cnt)
goto chip_diag_failed;
/* Check product ID of chip */
ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product ID of chip.\n");
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
mb[3] = RD_MAILBOX_REG(ha, reg, 3);
mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
mb[3] != PROD_ID_3) {
ql_log(ql_log_warn, vha, 0x0062,
"Wrong product ID = 0x%x,0x%x,0x%x.\n",
mb[1], mb[2], mb[3]);
goto chip_diag_failed;
}
ha->product_id[0] = mb[1];
ha->product_id[1] = mb[2];
ha->product_id[2] = mb[3];
ha->product_id[3] = mb[4];
/* Adjust fw RISC transfer size */
if (req->length > 1024)
ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
else
ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
req->length;
if (IS_QLA2200(ha) &&
RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
/* Limit firmware transfer size with a 2200A */
ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
ha->device_type |= DT_ISP2200A;
ha->fw_transfer_size = 128;
}
/* Wrap Incoming Mailboxes Test. */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
rval = qla2x00_mbx_reg_test(vha);
if (rval)
ql_log(ql_log_warn, vha, 0x0080,
"Failed mailbox send register test.\n");
else
/* Flag a successful rval */
rval = QLA_SUCCESS;
spin_lock_irqsave(&ha->hardware_lock, flags);
chip_diag_failed:
if (rval)
ql_log(ql_log_info, vha, 0x0081,
"Chip diagnostics **** FAILED ****.\n");
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return (rval);
}
/**
* qla24xx_chip_diag() - Test ISP24xx for proper operation.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla24xx_chip_diag(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
if (IS_P3P_TYPE(ha))
return QLA_SUCCESS;
ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
rval = qla2x00_mbx_reg_test(vha);
if (rval) {
ql_log(ql_log_warn, vha, 0x0082,
"Failed mailbox send register test.\n");
} else {
/* Flag a successful rval */
rval = QLA_SUCCESS;
}
return rval;
}
static void
qla2x00_init_fce_trace(scsi_qla_host_t *vha)
{
int rval;
dma_addr_t tc_dma;
void *tc;
struct qla_hw_data *ha = vha->hw;
if (!IS_FWI2_CAPABLE(ha))
return;
if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return;
if (ha->fce) {
ql_dbg(ql_dbg_init, vha, 0x00bd,
"%s: FCE Mem is already allocated.\n",
__func__);
return;
}
/* Allocate memory for Fibre Channel Event Buffer. */
tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
GFP_KERNEL);
if (!tc) {
ql_log(ql_log_warn, vha, 0x00be,
"Unable to allocate (%d KB) for FCE.\n",
FCE_SIZE / 1024);
return;
}
rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
ha->fce_mb, &ha->fce_bufs);
if (rval) {
ql_log(ql_log_warn, vha, 0x00bf,
"Unable to initialize FCE (%d).\n", rval);
dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma);
return;
}
ql_dbg(ql_dbg_init, vha, 0x00c0,
"Allocated (%d KB) for FCE...\n", FCE_SIZE / 1024);
ha->flags.fce_enabled = 1;
ha->fce_dma = tc_dma;
ha->fce = tc;
}
static void
qla2x00_init_eft_trace(scsi_qla_host_t *vha)
{
int rval;
dma_addr_t tc_dma;
void *tc;
struct qla_hw_data *ha = vha->hw;
if (!IS_FWI2_CAPABLE(ha))
return;
if (ha->eft) {
ql_dbg(ql_dbg_init, vha, 0x00bd,
"%s: EFT Mem is already allocated.\n",
__func__);
return;
}
/* Allocate memory for Extended Trace Buffer. */
tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
GFP_KERNEL);
if (!tc) {
ql_log(ql_log_warn, vha, 0x00c1,
"Unable to allocate (%d KB) for EFT.\n",
EFT_SIZE / 1024);
return;
}
rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
if (rval) {
ql_log(ql_log_warn, vha, 0x00c2,
"Unable to initialize EFT (%d).\n", rval);
dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, tc_dma);
return;
}
ql_dbg(ql_dbg_init, vha, 0x00c3,
"Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
ha->eft_dma = tc_dma;
ha->eft = tc;
}
static void
qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
{
qla2x00_init_fce_trace(vha);
qla2x00_init_eft_trace(vha);
}
void
qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
{
uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
eft_size, fce_size, mq_size;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
struct qla2xxx_fw_dump *fw_dump;
if (ha->fw_dump) {
ql_dbg(ql_dbg_init, vha, 0x00bd,
"Firmware dump already allocated.\n");
return;
}
ha->fw_dumped = 0;
ha->fw_dump_cap_flags = 0;
dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
req_q_size = rsp_q_size = 0;
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
fixed_size = sizeof(struct qla2100_fw_dump);
} else if (IS_QLA23XX(ha)) {
fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
mem_size = (ha->fw_memory_size - 0x11000 + 1) *
sizeof(uint16_t);
} else if (IS_FWI2_CAPABLE(ha)) {
if (IS_QLA83XX(ha))
fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
else if (IS_QLA81XX(ha))
fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
else if (IS_QLA25XX(ha))
fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
else
fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
mem_size = (ha->fw_memory_size - 0x100000 + 1) *
sizeof(uint32_t);
if (ha->mqenable) {
if (!IS_QLA83XX(ha))
mq_size = sizeof(struct qla2xxx_mq_chain);
/*
* Allocate maximum buffer size for all queues - Q0.
* Resizing must be done at end-of-dump processing.
*/
mq_size += (ha->max_req_queues - 1) *
(req->length * sizeof(request_t));
mq_size += (ha->max_rsp_queues - 1) *
(rsp->length * sizeof(response_t));
}
if (ha->tgt.atio_ring)
mq_size += ha->tgt.atio_q_length * sizeof(request_t);
qla2x00_init_fce_trace(vha);
if (ha->fce)
fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
qla2x00_init_eft_trace(vha);
if (ha->eft)
eft_size = EFT_SIZE;
}
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
struct fwdt *fwdt = ha->fwdt;
uint j;
for (j = 0; j < 2; j++, fwdt++) {
if (!fwdt->template) {
ql_dbg(ql_dbg_init, vha, 0x00ba,
"-> fwdt%u no template\n", j);
continue;
}
ql_dbg(ql_dbg_init, vha, 0x00fa,
"-> fwdt%u calculating fwdump size...\n", j);
fwdt->dump_size = qla27xx_fwdt_calculate_dump_size(
vha, fwdt->template);
ql_dbg(ql_dbg_init, vha, 0x00fa,
"-> fwdt%u calculated fwdump size = %#lx bytes\n",
j, fwdt->dump_size);
dump_size += fwdt->dump_size;
}
/* Add space for spare MPI fw dump. */
dump_size += ha->fwdt[1].dump_size;
} else {
req_q_size = req->length * sizeof(request_t);
rsp_q_size = rsp->length * sizeof(response_t);
dump_size = offsetof(struct qla2xxx_fw_dump, isp);
dump_size += fixed_size + mem_size + req_q_size + rsp_q_size
+ eft_size;
ha->chain_offset = dump_size;
dump_size += mq_size + fce_size;
if (ha->exchoffld_buf)
dump_size += sizeof(struct qla2xxx_offld_chain) +
ha->exchoffld_size;
if (ha->exlogin_buf)
dump_size += sizeof(struct qla2xxx_offld_chain) +
ha->exlogin_size;
}
if (!ha->fw_dump_len || dump_size > ha->fw_dump_alloc_len) {
ql_dbg(ql_dbg_init, vha, 0x00c5,
"%s dump_size %d fw_dump_len %d fw_dump_alloc_len %d\n",
__func__, dump_size, ha->fw_dump_len,
ha->fw_dump_alloc_len);
fw_dump = vmalloc(dump_size);
if (!fw_dump) {
ql_log(ql_log_warn, vha, 0x00c4,
"Unable to allocate (%d KB) for firmware dump.\n",
dump_size / 1024);
} else {
mutex_lock(&ha->optrom_mutex);
if (ha->fw_dumped) {
memcpy(fw_dump, ha->fw_dump, ha->fw_dump_len);
vfree(ha->fw_dump);
ha->fw_dump = fw_dump;
ha->fw_dump_alloc_len = dump_size;
ql_dbg(ql_dbg_init, vha, 0x00c5,
"Re-Allocated (%d KB) and save firmware dump.\n",
dump_size / 1024);
} else {
vfree(ha->fw_dump);
ha->fw_dump = fw_dump;
ha->fw_dump_len = ha->fw_dump_alloc_len =
dump_size;
ql_dbg(ql_dbg_init, vha, 0x00c5,
"Allocated (%d KB) for firmware dump.\n",
dump_size / 1024);
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
ha->mpi_fw_dump = (char *)fw_dump +
ha->fwdt[1].dump_size;
mutex_unlock(&ha->optrom_mutex);
return;
}
ha->fw_dump->signature[0] = 'Q';
ha->fw_dump->signature[1] = 'L';
ha->fw_dump->signature[2] = 'G';
ha->fw_dump->signature[3] = 'C';
ha->fw_dump->version = htonl(1);
ha->fw_dump->fixed_size = htonl(fixed_size);
ha->fw_dump->mem_size = htonl(mem_size);
ha->fw_dump->req_q_size = htonl(req_q_size);
ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
ha->fw_dump->eft_size = htonl(eft_size);
ha->fw_dump->eft_addr_l =
htonl(LSD(ha->eft_dma));
ha->fw_dump->eft_addr_h =
htonl(MSD(ha->eft_dma));
ha->fw_dump->header_size =
htonl(offsetof
(struct qla2xxx_fw_dump, isp));
}
mutex_unlock(&ha->optrom_mutex);
}
}
}
static int
qla81xx_mpi_sync(scsi_qla_host_t *vha)
{
#define MPS_MASK 0xe0
int rval;
uint16_t dc;
uint32_t dw;
if (!IS_QLA81XX(vha->hw))
return QLA_SUCCESS;
rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x0105,
"Unable to acquire semaphore.\n");
goto done;
}
pci_read_config_word(vha->hw->pdev, 0x54, &dc);
rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
goto done_release;
}
dc &= MPS_MASK;
if (dc == (dw & MPS_MASK))
goto done_release;
dw &= ~MPS_MASK;
dw |= dc;
rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
}
done_release:
rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x006d,
"Unable to release semaphore.\n");
}
done:
return rval;
}
int
qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
{
/* Don't try to reallocate the array */
if (req->outstanding_cmds)
return QLA_SUCCESS;
if (!IS_FWI2_CAPABLE(ha))
req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
else {
if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
req->num_outstanding_cmds = ha->cur_fw_xcb_count;
else
req->num_outstanding_cmds = ha->cur_fw_iocb_count;
}
req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
sizeof(srb_t *),
GFP_KERNEL);
if (!req->outstanding_cmds) {
/*
* Try to allocate a minimal size just so we can get through
* initialization.
*/
req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
sizeof(srb_t *),
GFP_KERNEL);
if (!req->outstanding_cmds) {
ql_log(ql_log_fatal, NULL, 0x0126,
"Failed to allocate memory for "
"outstanding_cmds for req_que %p.\n", req);
req->num_outstanding_cmds = 0;
return QLA_FUNCTION_FAILED;
}
}
return QLA_SUCCESS;
}
#define PRINT_FIELD(_field, _flag, _str) { \
if (a0->_field & _flag) {\
if (p) {\
strcat(ptr, "|");\
ptr++;\
leftover--;\
} \
len = snprintf(ptr, leftover, "%s", _str); \
p = 1;\
leftover -= len;\
ptr += len; \
} \
}
static void qla2xxx_print_sfp_info(struct scsi_qla_host *vha)
{
#define STR_LEN 64
struct sff_8247_a0 *a0 = (struct sff_8247_a0 *)vha->hw->sfp_data;
u8 str[STR_LEN], *ptr, p;
int leftover, len;
memset(str, 0, STR_LEN);
snprintf(str, SFF_VEN_NAME_LEN+1, a0->vendor_name);
ql_dbg(ql_dbg_init, vha, 0x015a,
"SFP MFG Name: %s\n", str);
memset(str, 0, STR_LEN);
snprintf(str, SFF_PART_NAME_LEN+1, a0->vendor_pn);
ql_dbg(ql_dbg_init, vha, 0x015c,
"SFP Part Name: %s\n", str);
/* media */
memset(str, 0, STR_LEN);
ptr = str;
leftover = STR_LEN;
p = len = 0;
PRINT_FIELD(fc_med_cc9, FC_MED_TW, "Twin AX");
PRINT_FIELD(fc_med_cc9, FC_MED_TP, "Twisted Pair");
PRINT_FIELD(fc_med_cc9, FC_MED_MI, "Min Coax");
PRINT_FIELD(fc_med_cc9, FC_MED_TV, "Video Coax");
PRINT_FIELD(fc_med_cc9, FC_MED_M6, "MultiMode 62.5um");
PRINT_FIELD(fc_med_cc9, FC_MED_M5, "MultiMode 50um");
PRINT_FIELD(fc_med_cc9, FC_MED_SM, "SingleMode");
ql_dbg(ql_dbg_init, vha, 0x0160,
"SFP Media: %s\n", str);
/* link length */
memset(str, 0, STR_LEN);
ptr = str;
leftover = STR_LEN;
p = len = 0;
PRINT_FIELD(fc_ll_cc7, FC_LL_VL, "Very Long");
PRINT_FIELD(fc_ll_cc7, FC_LL_S, "Short");
PRINT_FIELD(fc_ll_cc7, FC_LL_I, "Intermediate");
PRINT_FIELD(fc_ll_cc7, FC_LL_L, "Long");
PRINT_FIELD(fc_ll_cc7, FC_LL_M, "Medium");
ql_dbg(ql_dbg_init, vha, 0x0196,
"SFP Link Length: %s\n", str);
memset(str, 0, STR_LEN);
ptr = str;
leftover = STR_LEN;
p = len = 0;
PRINT_FIELD(fc_ll_cc7, FC_LL_SA, "Short Wave (SA)");
PRINT_FIELD(fc_ll_cc7, FC_LL_LC, "Long Wave(LC)");
PRINT_FIELD(fc_tec_cc8, FC_TEC_SN, "Short Wave (SN)");
PRINT_FIELD(fc_tec_cc8, FC_TEC_SL, "Short Wave (SL)");
PRINT_FIELD(fc_tec_cc8, FC_TEC_LL, "Long Wave (LL)");
ql_dbg(ql_dbg_init, vha, 0x016e,
"SFP FC Link Tech: %s\n", str);
if (a0->length_km)
ql_dbg(ql_dbg_init, vha, 0x016f,
"SFP Distant: %d km\n", a0->length_km);
if (a0->length_100m)
ql_dbg(ql_dbg_init, vha, 0x0170,
"SFP Distant: %d m\n", a0->length_100m*100);
if (a0->length_50um_10m)
ql_dbg(ql_dbg_init, vha, 0x0189,
"SFP Distant (WL=50um): %d m\n", a0->length_50um_10m * 10);
if (a0->length_62um_10m)
ql_dbg(ql_dbg_init, vha, 0x018a,
"SFP Distant (WL=62.5um): %d m\n", a0->length_62um_10m * 10);
if (a0->length_om4_10m)
ql_dbg(ql_dbg_init, vha, 0x0194,
"SFP Distant (OM4): %d m\n", a0->length_om4_10m * 10);
if (a0->length_om3_10m)
ql_dbg(ql_dbg_init, vha, 0x0195,
"SFP Distant (OM3): %d m\n", a0->length_om3_10m * 10);
}
/**
* qla24xx_detect_sfp()
*
* @vha: adapter state pointer.
*
* @return
* 0 -- Configure firmware to use short-range settings -- normal
* buffer-to-buffer credits.
*
* 1 -- Configure firmware to use long-range settings -- extra
* buffer-to-buffer credits should be allocated with
* ha->lr_distance containing distance settings from NVRAM or SFP
* (if supported).
*/
int
qla24xx_detect_sfp(scsi_qla_host_t *vha)
{
int rc, used_nvram;
struct sff_8247_a0 *a;
struct qla_hw_data *ha = vha->hw;
struct nvram_81xx *nv = ha->nvram;
#define LR_DISTANCE_UNKNOWN 2
static const char * const types[] = { "Short", "Long" };
static const char * const lengths[] = { "(10km)", "(5km)", "" };
u8 ll = 0;
/* Seed with NVRAM settings. */
used_nvram = 0;
ha->flags.lr_detected = 0;
if (IS_BPM_RANGE_CAPABLE(ha) &&
(nv->enhanced_features & NEF_LR_DIST_ENABLE)) {
used_nvram = 1;
ha->flags.lr_detected = 1;
ha->lr_distance =
(nv->enhanced_features >> LR_DIST_NV_POS)
& LR_DIST_NV_MASK;
}
if (!IS_BPM_ENABLED(vha))
goto out;
/* Determine SR/LR capabilities of SFP/Transceiver. */
rc = qla2x00_read_sfp_dev(vha, NULL, 0);
if (rc)
goto out;
used_nvram = 0;
a = (struct sff_8247_a0 *)vha->hw->sfp_data;
qla2xxx_print_sfp_info(vha);
ha->flags.lr_detected = 0;
ll = a->fc_ll_cc7;
if (ll & FC_LL_VL || ll & FC_LL_L) {
/* Long range, track length. */
ha->flags.lr_detected = 1;
if (a->length_km > 5 || a->length_100m > 50)
ha->lr_distance = LR_DISTANCE_10K;
else
ha->lr_distance = LR_DISTANCE_5K;
}
out:
ql_dbg(ql_dbg_async, vha, 0x507b,
"SFP detect: %s-Range SFP %s (nvr=%x ll=%x lr=%x lrd=%x).\n",
types[ha->flags.lr_detected],
ha->flags.lr_detected ? lengths[ha->lr_distance] :
lengths[LR_DISTANCE_UNKNOWN],
used_nvram, ll, ha->flags.lr_detected, ha->lr_distance);
return ha->flags.lr_detected;
}
static void __qla_adjust_iocb_limit(struct qla_qpair *qpair)
{
u8 num_qps;
u16 limit;
struct qla_hw_data *ha = qpair->vha->hw;
num_qps = ha->num_qpairs + 1;
limit = (ha->orig_fw_iocb_count * QLA_IOCB_PCT_LIMIT) / 100;
qpair->fwres.iocbs_total = ha->orig_fw_iocb_count;
qpair->fwres.iocbs_limit = limit;
qpair->fwres.iocbs_qp_limit = limit / num_qps;
qpair->fwres.exch_total = ha->orig_fw_xcb_count;
qpair->fwres.exch_limit = (ha->orig_fw_xcb_count *
QLA_IOCB_PCT_LIMIT) / 100;
}
void qla_init_iocb_limit(scsi_qla_host_t *vha)
{
u8 i;
struct qla_hw_data *ha = vha->hw;
__qla_adjust_iocb_limit(ha->base_qpair);
ha->base_qpair->fwres.iocbs_used = 0;
ha->base_qpair->fwres.exch_used = 0;
for (i = 0; i < ha->max_qpairs; i++) {
if (ha->queue_pair_map[i]) {
__qla_adjust_iocb_limit(ha->queue_pair_map[i]);
ha->queue_pair_map[i]->fwres.iocbs_used = 0;
ha->queue_pair_map[i]->fwres.exch_used = 0;
}
}
ha->fwres.iocb_total = ha->orig_fw_iocb_count;
ha->fwres.iocb_limit = (ha->orig_fw_iocb_count * QLA_IOCB_PCT_LIMIT) / 100;
ha->fwres.exch_total = ha->orig_fw_xcb_count;
ha->fwres.exch_limit = (ha->orig_fw_xcb_count * QLA_IOCB_PCT_LIMIT) / 100;
atomic_set(&ha->fwres.iocb_used, 0);
atomic_set(&ha->fwres.exch_used, 0);
}
void qla_adjust_iocb_limit(scsi_qla_host_t *vha)
{
u8 i;
struct qla_hw_data *ha = vha->hw;
__qla_adjust_iocb_limit(ha->base_qpair);
for (i = 0; i < ha->max_qpairs; i++) {
if (ha->queue_pair_map[i])
__qla_adjust_iocb_limit(ha->queue_pair_map[i]);
}
}
/**
* qla2x00_setup_chip() - Load and start RISC firmware.
* @vha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_setup_chip(scsi_qla_host_t *vha)
{
int rval;
uint32_t srisc_address = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
unsigned long flags;
uint16_t fw_major_version;
int done_once = 0;
if (IS_P3P_TYPE(ha)) {
rval = ha->isp_ops->load_risc(vha, &srisc_address);
if (rval == QLA_SUCCESS) {
qla2x00_stop_firmware(vha);
goto enable_82xx_npiv;
} else
goto failed;
}
if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
/* Disable SRAM, Instruction RAM and GP RAM parity. */
spin_lock_irqsave(&ha->hardware_lock, flags);
wrt_reg_word(®->hccr, (HCCR_ENABLE_PARITY + 0x0));
rd_reg_word(®->hccr);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
qla81xx_mpi_sync(vha);
execute_fw_with_lr:
/* Load firmware sequences */
rval = ha->isp_ops->load_risc(vha, &srisc_address);
if (rval == QLA_SUCCESS) {
ql_dbg(ql_dbg_init, vha, 0x00c9,
"Verifying Checksum of loaded RISC code.\n");
rval = qla2x00_verify_checksum(vha, srisc_address);
if (rval == QLA_SUCCESS) {
/* Start firmware execution. */
ql_dbg(ql_dbg_init, vha, 0x00ca,
"Starting firmware.\n");
if (ql2xexlogins)
ha->flags.exlogins_enabled = 1;
if (qla_is_exch_offld_enabled(vha))
ha->flags.exchoffld_enabled = 1;
rval = qla2x00_execute_fw(vha, srisc_address);
/* Retrieve firmware information. */
if (rval == QLA_SUCCESS) {
/* Enable BPM support? */
if (!done_once++ && qla24xx_detect_sfp(vha)) {
ql_dbg(ql_dbg_init, vha, 0x00ca,
"Re-starting firmware -- BPM.\n");
/* Best-effort - re-init. */
ha->isp_ops->reset_chip(vha);
ha->isp_ops->chip_diag(vha);
goto execute_fw_with_lr;
}
if (IS_ZIO_THRESHOLD_CAPABLE(ha))
qla27xx_set_zio_threshold(vha,
ha->last_zio_threshold);
rval = qla2x00_set_exlogins_buffer(vha);
if (rval != QLA_SUCCESS)
goto failed;
rval = qla2x00_set_exchoffld_buffer(vha);
if (rval != QLA_SUCCESS)
goto failed;
enable_82xx_npiv:
fw_major_version = ha->fw_major_version;
if (IS_P3P_TYPE(ha))
qla82xx_check_md_needed(vha);
else
rval = qla2x00_get_fw_version(vha);
if (rval != QLA_SUCCESS)
goto failed;
ha->flags.npiv_supported = 0;
if (IS_QLA2XXX_MIDTYPE(ha) &&
(ha->fw_attributes & BIT_2)) {
ha->flags.npiv_supported = 1;
if ((!ha->max_npiv_vports) ||
((ha->max_npiv_vports + 1) %
MIN_MULTI_ID_FABRIC))
ha->max_npiv_vports =
MIN_MULTI_ID_FABRIC - 1;
}
qla2x00_get_resource_cnts(vha);
qla_init_iocb_limit(vha);
/*
* Allocate the array of outstanding commands
* now that we know the firmware resources.
*/
rval = qla2x00_alloc_outstanding_cmds(ha,
vha->req);
if (rval != QLA_SUCCESS)
goto failed;
if (!fw_major_version && !(IS_P3P_TYPE(ha)))
qla2x00_alloc_offload_mem(vha);
if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
qla2x00_alloc_fw_dump(vha);
} else {
goto failed;
}
} else {
ql_log(ql_log_fatal, vha, 0x00cd,
"ISP Firmware failed checksum.\n");
goto failed;
}
/* Enable PUREX PASSTHRU */
if (ql2xrdpenable || ha->flags.scm_supported_f ||
ha->flags.edif_enabled)
qla25xx_set_els_cmds_supported(vha);
} else
goto failed;
if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
/* Enable proper parity. */
spin_lock_irqsave(&ha->hardware_lock, flags);
if (IS_QLA2300(ha))
/* SRAM parity */
wrt_reg_word(®->hccr, HCCR_ENABLE_PARITY + 0x1);
else
/* SRAM, Instruction RAM and GP RAM parity */
wrt_reg_word(®->hccr, HCCR_ENABLE_PARITY + 0x7);
rd_reg_word(®->hccr);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
ha->flags.fac_supported = 1;
else if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
uint32_t size;
rval = qla81xx_fac_get_sector_size(vha, &size);
if (rval == QLA_SUCCESS) {
ha->flags.fac_supported = 1;
ha->fdt_block_size = size << 2;
} else {
ql_log(ql_log_warn, vha, 0x00ce,
"Unsupported FAC firmware (%d.%02d.%02d).\n",
ha->fw_major_version, ha->fw_minor_version,
ha->fw_subminor_version);
if (IS_QLA83XX(ha)) {
ha->flags.fac_supported = 0;
rval = QLA_SUCCESS;
}
}
}
failed:
if (rval) {
ql_log(ql_log_fatal, vha, 0x00cf,
"Setup chip ****FAILED****.\n");
}
return (rval);
}
/**
* qla2x00_init_response_q_entries() - Initializes response queue entries.
* @rsp: response queue
*
* Beginning of request ring has initialization control block already built
* by nvram config routine.
*
* Returns 0 on success.
*/
void
qla2x00_init_response_q_entries(struct rsp_que *rsp)
{
uint16_t cnt;
response_t *pkt;
rsp->ring_ptr = rsp->ring;
rsp->ring_index = 0;
rsp->status_srb = NULL;
pkt = rsp->ring_ptr;
for (cnt = 0; cnt < rsp->length; cnt++) {
pkt->signature = RESPONSE_PROCESSED;
pkt++;
}
}
/**
* qla2x00_update_fw_options() - Read and process firmware options.
* @vha: HA context
*
* Returns 0 on success.
*/
void
qla2x00_update_fw_options(scsi_qla_host_t *vha)
{
uint16_t swing, emphasis, tx_sens, rx_sens;
struct qla_hw_data *ha = vha->hw;
memset(ha->fw_options, 0, sizeof(ha->fw_options));
qla2x00_get_fw_options(vha, ha->fw_options);
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return;
/* Serial Link options. */
ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
"Serial link options.\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
ha->fw_seriallink_options, sizeof(ha->fw_seriallink_options));
ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
if (ha->fw_seriallink_options[3] & BIT_2) {
ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
/* 1G settings */
swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
emphasis = (ha->fw_seriallink_options[2] &
(BIT_4 | BIT_3)) >> 3;
tx_sens = ha->fw_seriallink_options[0] &
(BIT_3 | BIT_2 | BIT_1 | BIT_0);
rx_sens = (ha->fw_seriallink_options[0] &
(BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
ha->fw_options[10] = (emphasis << 14) | (swing << 8);
if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
if (rx_sens == 0x0)
rx_sens = 0x3;
ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
ha->fw_options[10] |= BIT_5 |
((rx_sens & (BIT_1 | BIT_0)) << 2) |
(tx_sens & (BIT_1 | BIT_0));
/* 2G settings */
swing = (ha->fw_seriallink_options[2] &
(BIT_7 | BIT_6 | BIT_5)) >> 5;
emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
tx_sens = ha->fw_seriallink_options[1] &
(BIT_3 | BIT_2 | BIT_1 | BIT_0);
rx_sens = (ha->fw_seriallink_options[1] &
(BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
ha->fw_options[11] = (emphasis << 14) | (swing << 8);
if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
if (rx_sens == 0x0)
rx_sens = 0x3;
ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
ha->fw_options[11] |= BIT_5 |
((rx_sens & (BIT_1 | BIT_0)) << 2) |
(tx_sens & (BIT_1 | BIT_0));
}
/* FCP2 options. */
/* Return command IOCBs without waiting for an ABTS to complete. */
ha->fw_options[3] |= BIT_13;
/* LED scheme. */
if (ha->flags.enable_led_scheme)
ha->fw_options[2] |= BIT_12;
/* Detect ISP6312. */
if (IS_QLA6312(ha))
ha->fw_options[2] |= BIT_13;
/* Set Retry FLOGI in case of P2P connection */
if (ha->operating_mode == P2P) {
ha->fw_options[2] |= BIT_3;
ql_dbg(ql_dbg_disc, vha, 0x2100,
"(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
__func__, ha->fw_options[2]);
}
/* Update firmware options. */
qla2x00_set_fw_options(vha, ha->fw_options);
}
void
qla24xx_update_fw_options(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
if (IS_P3P_TYPE(ha))
return;
/* Hold status IOCBs until ABTS response received. */
if (ql2xfwholdabts)
ha->fw_options[3] |= BIT_12;
/* Set Retry FLOGI in case of P2P connection */
if (ha->operating_mode == P2P) {
ha->fw_options[2] |= BIT_3;
ql_dbg(ql_dbg_disc, vha, 0x2101,
"(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
__func__, ha->fw_options[2]);
}
/* Move PUREX, ABTS RX & RIDA to ATIOQ */
if (ql2xmvasynctoatio && !ha->flags.edif_enabled &&
(IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
if (qla_tgt_mode_enabled(vha) ||
qla_dual_mode_enabled(vha))
ha->fw_options[2] |= BIT_11;
else
ha->fw_options[2] &= ~BIT_11;
}
if (IS_QLA25XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha)) {
/*
* Tell FW to track each exchange to prevent
* driver from using stale exchange.
*/
if (qla_tgt_mode_enabled(vha) ||
qla_dual_mode_enabled(vha))
ha->fw_options[2] |= BIT_4;
else
ha->fw_options[2] &= ~(BIT_4);
/* Reserve 1/2 of emergency exchanges for ELS.*/
if (qla2xuseresexchforels)
ha->fw_options[2] |= BIT_8;
else
ha->fw_options[2] &= ~BIT_8;
/*
* N2N: set Secure=1 for PLOGI ACC and
* fw shal not send PRLI after PLOGI Acc
*/
if (ha->flags.edif_enabled &&
DBELL_ACTIVE(vha)) {
ha->fw_options[3] |= BIT_15;
ha->flags.n2n_fw_acc_sec = 1;
} else {
ha->fw_options[3] &= ~BIT_15;
ha->flags.n2n_fw_acc_sec = 0;
}
}
if (ql2xrdpenable || ha->flags.scm_supported_f ||
ha->flags.edif_enabled)
ha->fw_options[1] |= ADD_FO1_ENABLE_PUREX_IOCB;
/* Enable Async 8130/8131 events -- transceiver insertion/removal */
if (IS_BPM_RANGE_CAPABLE(ha))
ha->fw_options[3] |= BIT_10;
ql_dbg(ql_dbg_init, vha, 0x00e8,
"%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
__func__, ha->fw_options[1], ha->fw_options[2],
ha->fw_options[3], vha->host->active_mode);
if (ha->fw_options[1] || ha->fw_options[2] || ha->fw_options[3])
qla2x00_set_fw_options(vha, ha->fw_options);
/* Update Serial Link options. */
if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
return;
rval = qla2x00_set_serdes_params(vha,
le16_to_cpu(ha->fw_seriallink_options24[1]),
le16_to_cpu(ha->fw_seriallink_options24[2]),
le16_to_cpu(ha->fw_seriallink_options24[3]));
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x0104,
"Unable to update Serial Link options (%x).\n", rval);
}
}
void
qla2x00_config_rings(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
/* Setup ring parameters in initialization control block. */
ha->init_cb->request_q_outpointer = cpu_to_le16(0);
ha->init_cb->response_q_inpointer = cpu_to_le16(0);
ha->init_cb->request_q_length = cpu_to_le16(req->length);
ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
put_unaligned_le64(req->dma, &ha->init_cb->request_q_address);
put_unaligned_le64(rsp->dma, &ha->init_cb->response_q_address);
wrt_reg_word(ISP_REQ_Q_IN(ha, reg), 0);
wrt_reg_word(ISP_REQ_Q_OUT(ha, reg), 0);
wrt_reg_word(ISP_RSP_Q_IN(ha, reg), 0);
wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), 0);
rd_reg_word(ISP_RSP_Q_OUT(ha, reg)); /* PCI Posting. */
}
void
qla24xx_config_rings(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
device_reg_t *reg = ISP_QUE_REG(ha, 0);
struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
struct qla_msix_entry *msix;
struct init_cb_24xx *icb;
uint16_t rid = 0;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
/* Setup ring parameters in initialization control block. */
icb = (struct init_cb_24xx *)ha->init_cb;
icb->request_q_outpointer = cpu_to_le16(0);
icb->response_q_inpointer = cpu_to_le16(0);
icb->request_q_length = cpu_to_le16(req->length);
icb->response_q_length = cpu_to_le16(rsp->length);
put_unaligned_le64(req->dma, &icb->request_q_address);
put_unaligned_le64(rsp->dma, &icb->response_q_address);
/* Setup ATIO queue dma pointers for target mode */
icb->atio_q_inpointer = cpu_to_le16(0);
icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
put_unaligned_le64(ha->tgt.atio_dma, &icb->atio_q_address);
if (IS_SHADOW_REG_CAPABLE(ha))
icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha)) {
icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
icb->rid = cpu_to_le16(rid);
if (ha->flags.msix_enabled) {
msix = &ha->msix_entries[1];
ql_dbg(ql_dbg_init, vha, 0x0019,
"Registering vector 0x%x for base que.\n",
msix->entry);
icb->msix = cpu_to_le16(msix->entry);
}
/* Use alternate PCI bus number */
if (MSB(rid))
icb->firmware_options_2 |= cpu_to_le32(BIT_19);
/* Use alternate PCI devfn */
if (LSB(rid))
icb->firmware_options_2 |= cpu_to_le32(BIT_18);
/* Use Disable MSIX Handshake mode for capable adapters */
if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
(ha->flags.msix_enabled)) {
icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
ha->flags.disable_msix_handshake = 1;
ql_dbg(ql_dbg_init, vha, 0x00fe,
"MSIX Handshake Disable Mode turned on.\n");
} else {
icb->firmware_options_2 |= cpu_to_le32(BIT_22);
}
icb->firmware_options_2 |= cpu_to_le32(BIT_23);
wrt_reg_dword(®->isp25mq.req_q_in, 0);
wrt_reg_dword(®->isp25mq.req_q_out, 0);
wrt_reg_dword(®->isp25mq.rsp_q_in, 0);
wrt_reg_dword(®->isp25mq.rsp_q_out, 0);
} else {
wrt_reg_dword(®->isp24.req_q_in, 0);
wrt_reg_dword(®->isp24.req_q_out, 0);
wrt_reg_dword(®->isp24.rsp_q_in, 0);
wrt_reg_dword(®->isp24.rsp_q_out, 0);
}
qlt_24xx_config_rings(vha);
/* If the user has configured the speed, set it here */
if (ha->set_data_rate) {
ql_dbg(ql_dbg_init, vha, 0x00fd,
"Speed set by user : %s Gbps \n",
qla2x00_get_link_speed_str(ha, ha->set_data_rate));
icb->firmware_options_3 = cpu_to_le32(ha->set_data_rate << 13);
}
/* PCI posting */
rd_reg_word(&ioreg->hccr);
}
/**
* qla2x00_init_rings() - Initializes firmware.
* @vha: HA context
*
* Beginning of request ring has initialization control block already built
* by nvram config routine.
*
* Returns 0 on success.
*/
int
qla2x00_init_rings(scsi_qla_host_t *vha)
{
int rval;
unsigned long flags = 0;
int cnt, que;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
struct rsp_que *rsp;
struct mid_init_cb_24xx *mid_init_cb =
(struct mid_init_cb_24xx *) ha->init_cb;
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Clear outstanding commands array. */
for (que = 0; que < ha->max_req_queues; que++) {
req = ha->req_q_map[que];
if (!req || !test_bit(que, ha->req_qid_map))
continue;
req->out_ptr = (uint16_t *)(req->ring + req->length);
*req->out_ptr = 0;
for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
req->outstanding_cmds[cnt] = NULL;
req->current_outstanding_cmd = 1;
/* Initialize firmware. */
req->ring_ptr = req->ring;
req->ring_index = 0;
req->cnt = req->length;
}
for (que = 0; que < ha->max_rsp_queues; que++) {
rsp = ha->rsp_q_map[que];
if (!rsp || !test_bit(que, ha->rsp_qid_map))
continue;
rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length);
*rsp->in_ptr = 0;
/* Initialize response queue entries */
if (IS_QLAFX00(ha))
qlafx00_init_response_q_entries(rsp);
else
qla2x00_init_response_q_entries(rsp);
}
ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
ha->tgt.atio_ring_index = 0;
/* Initialize ATIO queue entries */
qlt_init_atio_q_entries(vha);
ha->isp_ops->config_rings(vha);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (IS_QLAFX00(ha)) {
rval = qlafx00_init_firmware(vha, ha->init_cb_size);
goto next_check;
}
/* Update any ISP specific firmware options before initialization. */
ha->isp_ops->update_fw_options(vha);
ql_dbg(ql_dbg_init, vha, 0x00d1,
"Issue init firmware FW opt 1-3= %08x %08x %08x.\n",
le32_to_cpu(mid_init_cb->init_cb.firmware_options_1),
le32_to_cpu(mid_init_cb->init_cb.firmware_options_2),
le32_to_cpu(mid_init_cb->init_cb.firmware_options_3));
if (ha->flags.npiv_supported) {
if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
}
if (IS_FWI2_CAPABLE(ha)) {
mid_init_cb->options = cpu_to_le16(BIT_1);
mid_init_cb->init_cb.execution_throttle =
cpu_to_le16(ha->cur_fw_xcb_count);
ha->flags.dport_enabled =
(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
BIT_7) != 0;
ql_dbg(ql_dbg_init, vha, 0x0191, "DPORT Support: %s.\n",
(ha->flags.dport_enabled) ? "enabled" : "disabled");
/* FA-WWPN Status */
ha->flags.fawwpn_enabled =
(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
BIT_6) != 0;
ql_dbg(ql_dbg_init, vha, 0x00bc, "FA-WWPN Support: %s.\n",
(ha->flags.fawwpn_enabled) ? "enabled" : "disabled");
/* Init_cb will be reused for other command(s). Save a backup copy of port_name */
memcpy(ha->port_name, ha->init_cb->port_name, WWN_SIZE);
}
/* ELS pass through payload is limit by frame size. */
if (ha->flags.edif_enabled)
mid_init_cb->init_cb.frame_payload_size = cpu_to_le16(ELS_MAX_PAYLOAD);
QLA_FW_STARTED(ha);
rval = qla2x00_init_firmware(vha, ha->init_cb_size);
next_check:
if (rval) {
QLA_FW_STOPPED(ha);
ql_log(ql_log_fatal, vha, 0x00d2,
"Init Firmware **** FAILED ****.\n");
} else {
ql_dbg(ql_dbg_init, vha, 0x00d3,
"Init Firmware -- success.\n");
vha->u_ql2xexchoffld = vha->u_ql2xiniexchg = 0;
}
return (rval);
}
/**
* qla2x00_fw_ready() - Waits for firmware ready.
* @vha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_fw_ready(scsi_qla_host_t *vha)
{
int rval;
unsigned long wtime, mtime, cs84xx_time;
uint16_t min_wait; /* Minimum wait time if loop is down */
uint16_t wait_time; /* Wait time if loop is coming ready */
uint16_t state[6];
struct qla_hw_data *ha = vha->hw;
if (IS_QLAFX00(vha->hw))
return qlafx00_fw_ready(vha);
/* Time to wait for loop down */
if (IS_P3P_TYPE(ha))
min_wait = 30;
else
min_wait = 20;
/*
* Firmware should take at most one RATOV to login, plus 5 seconds for
* our own processing.
*/
if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
wait_time = min_wait;
}
/* Min wait time if loop down */
mtime = jiffies + (min_wait * HZ);
/* wait time before firmware ready */
wtime = jiffies + (wait_time * HZ);
/* Wait for ISP to finish LIP */
if (!vha->flags.init_done)
ql_log(ql_log_info, vha, 0x801e,
"Waiting for LIP to complete.\n");
do {
memset(state, -1, sizeof(state));
rval = qla2x00_get_firmware_state(vha, state);
if (rval == QLA_SUCCESS) {
if (state[0] < FSTATE_LOSS_OF_SYNC) {
vha->device_flags &= ~DFLG_NO_CABLE;
}
if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
ql_dbg(ql_dbg_taskm, vha, 0x801f,
"fw_state=%x 84xx=%x.\n", state[0],
state[2]);
if ((state[2] & FSTATE_LOGGED_IN) &&
(state[2] & FSTATE_WAITING_FOR_VERIFY)) {
ql_dbg(ql_dbg_taskm, vha, 0x8028,
"Sending verify iocb.\n");
cs84xx_time = jiffies;
rval = qla84xx_init_chip(vha);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn,
vha, 0x8007,
"Init chip failed.\n");
break;
}
/* Add time taken to initialize. */
cs84xx_time = jiffies - cs84xx_time;
wtime += cs84xx_time;
mtime += cs84xx_time;
ql_dbg(ql_dbg_taskm, vha, 0x8008,
"Increasing wait time by %ld. "
"New time %ld.\n", cs84xx_time,
wtime);
}
} else if (state[0] == FSTATE_READY) {
ql_dbg(ql_dbg_taskm, vha, 0x8037,
"F/W Ready - OK.\n");
qla2x00_get_retry_cnt(vha, &ha->retry_count,
&ha->login_timeout, &ha->r_a_tov);
rval = QLA_SUCCESS;
break;
}
rval = QLA_FUNCTION_FAILED;
if (atomic_read(&vha->loop_down_timer) &&
state[0] != FSTATE_READY) {
/* Loop down. Timeout on min_wait for states
* other than Wait for Login.
*/
if (time_after_eq(jiffies, mtime)) {
ql_log(ql_log_info, vha, 0x8038,
"Cable is unplugged...\n");
vha->device_flags |= DFLG_NO_CABLE;
break;
}
}
} else {
/* Mailbox cmd failed. Timeout on min_wait. */
if (time_after_eq(jiffies, mtime) ||
ha->flags.isp82xx_fw_hung)
break;
}
if (time_after_eq(jiffies, wtime))
break;
/* Delay for a while */
msleep(500);
} while (1);
ql_dbg(ql_dbg_taskm, vha, 0x803a,
"fw_state=%x (%x, %x, %x, %x %x) curr time=%lx.\n", state[0],
state[1], state[2], state[3], state[4], state[5], jiffies);
if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
ql_log(ql_log_warn, vha, 0x803b,
"Firmware ready **** FAILED ****.\n");
}
return (rval);
}
/*
* qla2x00_configure_hba
* Setup adapter context.
*
* Input:
* ha = adapter state pointer.
*
* Returns:
* 0 = success
*
* Context:
* Kernel context.
*/
static int
qla2x00_configure_hba(scsi_qla_host_t *vha)
{
int rval;
uint16_t loop_id;
uint16_t topo;
uint16_t sw_cap;
uint8_t al_pa;
uint8_t area;
uint8_t domain;
char connect_type[22];
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
port_id_t id;
unsigned long flags;
/* Get host addresses. */
rval = qla2x00_get_adapter_id(vha,
&loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
if (rval != QLA_SUCCESS) {
if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
IS_CNA_CAPABLE(ha) ||
(rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
ql_dbg(ql_dbg_disc, vha, 0x2008,
"Loop is in a transition state.\n");
} else {
ql_log(ql_log_warn, vha, 0x2009,
"Unable to get host loop ID.\n");
if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
(rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
ql_log(ql_log_warn, vha, 0x1151,
"Doing link init.\n");
if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
return rval;
}
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
}
return (rval);
}
if (topo == 4) {
ql_log(ql_log_info, vha, 0x200a,
"Cannot get topology - retrying.\n");
return (QLA_FUNCTION_FAILED);
}
vha->loop_id = loop_id;
/* initialize */
ha->min_external_loopid = SNS_FIRST_LOOP_ID;
ha->operating_mode = LOOP;
switch (topo) {
case 0:
ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
ha->switch_cap = 0;
ha->current_topology = ISP_CFG_NL;
strcpy(connect_type, "(Loop)");
break;
case 1:
ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
ha->switch_cap = sw_cap;
ha->current_topology = ISP_CFG_FL;
strcpy(connect_type, "(FL_Port)");
break;
case 2:
ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
ha->switch_cap = 0;
ha->operating_mode = P2P;
ha->current_topology = ISP_CFG_N;
strcpy(connect_type, "(N_Port-to-N_Port)");
break;
case 3:
ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
ha->switch_cap = sw_cap;
ha->operating_mode = P2P;
ha->current_topology = ISP_CFG_F;
strcpy(connect_type, "(F_Port)");
break;
default:
ql_dbg(ql_dbg_disc, vha, 0x200f,
"HBA in unknown topology %x, using NL.\n", topo);
ha->switch_cap = 0;
ha->current_topology = ISP_CFG_NL;
strcpy(connect_type, "(Loop)");
break;
}
/* Save Host port and loop ID. */
/* byte order - Big Endian */
id.b.domain = domain;
id.b.area = area;
id.b.al_pa = al_pa;
id.b.rsvd_1 = 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
if (vha->hw->flags.edif_enabled) {
if (topo != 2)
qla_update_host_map(vha, id);
} else if (!(topo == 2 && ha->flags.n2n_bigger))
qla_update_host_map(vha, id);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (!vha->flags.init_done)
ql_log(ql_log_info, vha, 0x2010,
"Topology - %s, Host Loop address 0x%x.\n",
connect_type, vha->loop_id);
return(rval);
}
inline void
qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
const char *def)
{
char *st, *en;
uint16_t index;
uint64_t zero[2] = { 0 };
struct qla_hw_data *ha = vha->hw;
int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
!IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
if (len > sizeof(zero))
len = sizeof(zero);
if (memcmp(model, &zero, len) != 0) {
memcpy(ha->model_number, model, len);
st = en = ha->model_number;
en += len - 1;
while (en > st) {
if (*en != 0x20 && *en != 0x00)
break;
*en-- = '\0';
}
index = (ha->pdev->subsystem_device & 0xff);
if (use_tbl &&
ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
index < QLA_MODEL_NAMES)
strscpy(ha->model_desc,
qla2x00_model_name[index * 2 + 1],
sizeof(ha->model_desc));
} else {
index = (ha->pdev->subsystem_device & 0xff);
if (use_tbl &&
ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
index < QLA_MODEL_NAMES) {
strscpy(ha->model_number,
qla2x00_model_name[index * 2],
sizeof(ha->model_number));
strscpy(ha->model_desc,
qla2x00_model_name[index * 2 + 1],
sizeof(ha->model_desc));
} else {
strscpy(ha->model_number, def,
sizeof(ha->model_number));
}
}
if (IS_FWI2_CAPABLE(ha))
qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
sizeof(ha->model_desc));
}
/* On sparc systems, obtain port and node WWN from firmware
* properties.
*/
static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
{
#ifdef CONFIG_SPARC
struct qla_hw_data *ha = vha->hw;
struct pci_dev *pdev = ha->pdev;
struct device_node *dp = pci_device_to_OF_node(pdev);
const u8 *val;
int len;
val = of_get_property(dp, "port-wwn", &len);
if (val && len >= WWN_SIZE)
memcpy(nv->port_name, val, WWN_SIZE);
val = of_get_property(dp, "node-wwn", &len);
if (val && len >= WWN_SIZE)
memcpy(nv->node_name, val, WWN_SIZE);
#endif
}
/*
* NVRAM configuration for ISP 2xxx
*
* Input:
* ha = adapter block pointer.
*
* Output:
* initialization control block in response_ring
* host adapters parameters in host adapter block
*
* Returns:
* 0 = success.
*/
int
qla2x00_nvram_config(scsi_qla_host_t *vha)
{
int rval;
uint8_t chksum = 0;
uint16_t cnt;
uint8_t *dptr1, *dptr2;
struct qla_hw_data *ha = vha->hw;
init_cb_t *icb = ha->init_cb;
nvram_t *nv = ha->nvram;
uint8_t *ptr = ha->nvram;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
rval = QLA_SUCCESS;
/* Determine NVRAM starting address. */
ha->nvram_size = sizeof(*nv);
ha->nvram_base = 0;
if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
if ((rd_reg_word(®->ctrl_status) >> 14) == 1)
ha->nvram_base = 0x80;
/* Get NVRAM data and calculate checksum. */
ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
chksum += *ptr++;
ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
"Contents of NVRAM.\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
nv, ha->nvram_size);
/* Bad NVRAM data, set defaults parameters. */
if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
nv->nvram_version < 1) {
/* Reset NVRAM data. */
ql_log(ql_log_warn, vha, 0x0064,
"Inconsistent NVRAM detected: checksum=%#x id=%.4s version=%#x.\n",
chksum, nv->id, nv->nvram_version);
ql_log(ql_log_warn, vha, 0x0065,
"Falling back to "
"functioning (yet invalid -- WWPN) defaults.\n");
/*
* Set default initialization control block.
*/
memset(nv, 0, ha->nvram_size);
nv->parameter_block_version = ICB_VERSION;
if (IS_QLA23XX(ha)) {
nv->firmware_options[0] = BIT_2 | BIT_1;
nv->firmware_options[1] = BIT_7 | BIT_5;
nv->add_firmware_options[0] = BIT_5;
nv->add_firmware_options[1] = BIT_5 | BIT_4;
nv->frame_payload_size = cpu_to_le16(2048);
nv->special_options[1] = BIT_7;
} else if (IS_QLA2200(ha)) {
nv->firmware_options[0] = BIT_2 | BIT_1;
nv->firmware_options[1] = BIT_7 | BIT_5;
nv->add_firmware_options[0] = BIT_5;
nv->add_firmware_options[1] = BIT_5 | BIT_4;
nv->frame_payload_size = cpu_to_le16(1024);
} else if (IS_QLA2100(ha)) {
nv->firmware_options[0] = BIT_3 | BIT_1;
nv->firmware_options[1] = BIT_5;
nv->frame_payload_size = cpu_to_le16(1024);
}
nv->max_iocb_allocation = cpu_to_le16(256);
nv->execution_throttle = cpu_to_le16(16);
nv->retry_count = 8;
nv->retry_delay = 1;
nv->port_name[0] = 33;
nv->port_name[3] = 224;
nv->port_name[4] = 139;
qla2xxx_nvram_wwn_from_ofw(vha, nv);
nv->login_timeout = 4;
/*
* Set default host adapter parameters
*/
nv->host_p[1] = BIT_2;
nv->reset_delay = 5;
nv->port_down_retry_count = 8;
nv->max_luns_per_target = cpu_to_le16(8);
nv->link_down_timeout = 60;
rval = 1;
}
/* Reset Initialization control block */
memset(icb, 0, ha->init_cb_size);
/*
* Setup driver NVRAM options.
*/
nv->firmware_options[0] |= (BIT_6 | BIT_1);
nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
nv->firmware_options[1] |= (BIT_5 | BIT_0);
nv->firmware_options[1] &= ~BIT_4;
if (IS_QLA23XX(ha)) {
nv->firmware_options[0] |= BIT_2;
nv->firmware_options[0] &= ~BIT_3;
nv->special_options[0] &= ~BIT_6;
nv->add_firmware_options[1] |= BIT_5 | BIT_4;
if (IS_QLA2300(ha)) {
if (ha->fb_rev == FPM_2310) {
strcpy(ha->model_number, "QLA2310");
} else {
strcpy(ha->model_number, "QLA2300");
}
} else {
qla2x00_set_model_info(vha, nv->model_number,
sizeof(nv->model_number), "QLA23xx");
}
} else if (IS_QLA2200(ha)) {
nv->firmware_options[0] |= BIT_2;
/*
* 'Point-to-point preferred, else loop' is not a safe
* connection mode setting.
*/
if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
(BIT_5 | BIT_4)) {
/* Force 'loop preferred, else point-to-point'. */
nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
nv->add_firmware_options[0] |= BIT_5;
}
strcpy(ha->model_number, "QLA22xx");
} else /*if (IS_QLA2100(ha))*/ {
strcpy(ha->model_number, "QLA2100");
}
/*
* Copy over NVRAM RISC parameter block to initialization control block.
*/
dptr1 = (uint8_t *)icb;
dptr2 = (uint8_t *)&nv->parameter_block_version;
cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
while (cnt--)
*dptr1++ = *dptr2++;
/* Copy 2nd half. */
dptr1 = (uint8_t *)icb->add_firmware_options;
cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
while (cnt--)
*dptr1++ = *dptr2++;
ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
/* Use alternate WWN? */
if (nv->host_p[1] & BIT_7) {
memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
}
/* Prepare nodename */
if ((icb->firmware_options[1] & BIT_6) == 0) {
/*
* Firmware will apply the following mask if the nodename was
* not provided.
*/
memcpy(icb->node_name, icb->port_name, WWN_SIZE);
icb->node_name[0] &= 0xF0;
}
/*
* Set host adapter parameters.
*/
/*
* BIT_7 in the host-parameters section allows for modification to
* internal driver logging.
*/
if (nv->host_p[0] & BIT_7)
ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
/* Always load RISC code on non ISP2[12]00 chips. */
if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
ha->flags.disable_risc_code_load = 0;
ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
ha->flags.disable_serdes = 0;
ha->operating_mode =
(icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
memcpy(ha->fw_seriallink_options, nv->seriallink_options,
sizeof(ha->fw_seriallink_options));
/* save HBA serial number */
ha->serial0 = icb->port_name[5];
ha->serial1 = icb->port_name[6];
ha->serial2 = icb->port_name[7];
memcpy(vha->node_name, icb->node_name, WWN_SIZE);
memcpy(vha->port_name, icb->port_name, WWN_SIZE);
icb->execution_throttle = cpu_to_le16(0xFFFF);
ha->retry_count = nv->retry_count;
/* Set minimum login_timeout to 4 seconds. */
if (nv->login_timeout != ql2xlogintimeout)
nv->login_timeout = ql2xlogintimeout;
if (nv->login_timeout < 4)
nv->login_timeout = 4;
ha->login_timeout = nv->login_timeout;
/* Set minimum RATOV to 100 tenths of a second. */
ha->r_a_tov = 100;
ha->loop_reset_delay = nv->reset_delay;
/* Link Down Timeout = 0:
*
* When Port Down timer expires we will start returning
* I/O's to OS with "DID_NO_CONNECT".
*
* Link Down Timeout != 0:
*
* The driver waits for the link to come up after link down
* before returning I/Os to OS with "DID_NO_CONNECT".
*/
if (nv->link_down_timeout == 0) {
ha->loop_down_abort_time =
(LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
} else {
ha->link_down_timeout = nv->link_down_timeout;
ha->loop_down_abort_time =
(LOOP_DOWN_TIME - ha->link_down_timeout);
}
/*
* Need enough time to try and get the port back.
*/
ha->port_down_retry_count = nv->port_down_retry_count;
if (qlport_down_retry)
ha->port_down_retry_count = qlport_down_retry;
/* Set login_retry_count */
ha->login_retry_count = nv->retry_count;
if (ha->port_down_retry_count == nv->port_down_retry_count &&
ha->port_down_retry_count > 3)
ha->login_retry_count = ha->port_down_retry_count;
else if (ha->port_down_retry_count > (int)ha->login_retry_count)
ha->login_retry_count = ha->port_down_retry_count;
if (ql2xloginretrycount)
ha->login_retry_count = ql2xloginretrycount;
icb->lun_enables = cpu_to_le16(0);
icb->command_resource_count = 0;
icb->immediate_notify_resource_count = 0;
icb->timeout = cpu_to_le16(0);
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
/* Enable RIO */
icb->firmware_options[0] &= ~BIT_3;
icb->add_firmware_options[0] &=
~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
icb->add_firmware_options[0] |= BIT_2;
icb->response_accumulation_timer = 3;
icb->interrupt_delay_timer = 5;
vha->flags.process_response_queue = 1;
} else {
/* Enable ZIO. */
if (!vha->flags.init_done) {
ha->zio_mode = icb->add_firmware_options[0] &
(BIT_3 | BIT_2 | BIT_1 | BIT_0);
ha->zio_timer = icb->interrupt_delay_timer ?
icb->interrupt_delay_timer : 2;
}
icb->add_firmware_options[0] &=
~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
vha->flags.process_response_queue = 0;
if (ha->zio_mode != QLA_ZIO_DISABLED) {
ha->zio_mode = QLA_ZIO_MODE_6;
ql_log(ql_log_info, vha, 0x0068,
"ZIO mode %d enabled; timer delay (%d us).\n",
ha->zio_mode, ha->zio_timer * 100);
icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
vha->flags.process_response_queue = 1;
}
}
if (rval) {
ql_log(ql_log_warn, vha, 0x0069,
"NVRAM configuration failed.\n");
}
return (rval);
}
void qla2x00_set_fcport_state(fc_port_t *fcport, int state)
{
int old_state;
old_state = atomic_read(&fcport->state);
atomic_set(&fcport->state, state);
/* Don't print state transitions during initial allocation of fcport */
if (old_state && old_state != state) {
ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
"FCPort %8phC state transitioned from %s to %s - portid=%02x%02x%02x.\n",
fcport->port_name, port_state_str[old_state],
port_state_str[state], fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
}
}
/**
* qla2x00_alloc_fcport() - Allocate a generic fcport.
* @vha: HA context
* @flags: allocation flags
*
* Returns a pointer to the allocated fcport, or NULL, if none available.
*/
fc_port_t *
qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
{
fc_port_t *fcport;
fcport = kzalloc(sizeof(fc_port_t), flags);
if (!fcport)
return NULL;
fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
flags);
if (!fcport->ct_desc.ct_sns) {
ql_log(ql_log_warn, vha, 0xd049,
"Failed to allocate ct_sns request.\n");
kfree(fcport);
return NULL;
}
/* Setup fcport template structure. */
fcport->vha = vha;
fcport->port_type = FCT_UNKNOWN;
fcport->loop_id = FC_NO_LOOP_ID;
qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
fcport->supported_classes = FC_COS_UNSPECIFIED;
fcport->fp_speed = PORT_SPEED_UNKNOWN;
fcport->disc_state = DSC_DELETED;
fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
fcport->deleted = QLA_SESS_DELETED;
fcport->login_retry = vha->hw->login_retry_count;
fcport->chip_reset = vha->hw->base_qpair->chip_reset;
fcport->logout_on_delete = 1;
fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
fcport->tgt_short_link_down_cnt = 0;
fcport->dev_loss_tmo = 0;
if (!fcport->ct_desc.ct_sns) {
ql_log(ql_log_warn, vha, 0xd049,
"Failed to allocate ct_sns request.\n");
kfree(fcport);
return NULL;
}
INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
INIT_WORK(&fcport->free_work, qlt_free_session_done);
INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
INIT_LIST_HEAD(&fcport->gnl_entry);
INIT_LIST_HEAD(&fcport->list);
INIT_LIST_HEAD(&fcport->unsol_ctx_head);
INIT_LIST_HEAD(&fcport->sess_cmd_list);
spin_lock_init(&fcport->sess_cmd_lock);
spin_lock_init(&fcport->edif.sa_list_lock);
INIT_LIST_HEAD(&fcport->edif.tx_sa_list);
INIT_LIST_HEAD(&fcport->edif.rx_sa_list);
spin_lock_init(&fcport->edif.indx_list_lock);
INIT_LIST_HEAD(&fcport->edif.edif_indx_list);
return fcport;
}
void
qla2x00_free_fcport(fc_port_t *fcport)
{
if (fcport->ct_desc.ct_sns) {
dma_free_coherent(&fcport->vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), fcport->ct_desc.ct_sns,
fcport->ct_desc.ct_sns_dma);
fcport->ct_desc.ct_sns = NULL;
}
qla_edif_flush_sa_ctl_lists(fcport);
list_del(&fcport->list);
qla2x00_clear_loop_id(fcport);
qla_edif_list_del(fcport);
kfree(fcport);
}
static void qla_get_login_template(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int rval;
u32 *bp, sz;
__be32 *q;
memset(ha->init_cb, 0, ha->init_cb_size);
sz = min_t(int, sizeof(struct fc_els_flogi), ha->init_cb_size);
rval = qla24xx_get_port_login_templ(vha, ha->init_cb_dma,
ha->init_cb, sz);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_init, vha, 0x00d1,
"PLOGI ELS param read fail.\n");
return;
}
q = (__be32 *)&ha->plogi_els_payld.fl_csp;
bp = (uint32_t *)ha->init_cb;
cpu_to_be32_array(q, bp, sz / 4);
ha->flags.plogi_template_valid = 1;
}
/*
* qla2x00_configure_loop
* Updates Fibre Channel Device Database with what is actually on loop.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
* 1 = error.
* 2 = database was full and device was not configured.
*/
static int
qla2x00_configure_loop(scsi_qla_host_t *vha)
{
int rval;
unsigned long flags, save_flags;
struct qla_hw_data *ha = vha->hw;
rval = QLA_SUCCESS;
/* Get Initiator ID */
if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
rval = qla2x00_configure_hba(vha);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x2013,
"Unable to configure HBA.\n");
return (rval);
}
}
save_flags = flags = vha->dpc_flags;
ql_dbg(ql_dbg_disc, vha, 0x2014,
"Configure loop -- dpc flags = 0x%lx.\n", flags);
/*
* If we have both an RSCN and PORT UPDATE pending then handle them
* both at the same time.
*/
clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
clear_bit(RSCN_UPDATE, &vha->dpc_flags);
qla2x00_get_data_rate(vha);
qla_get_login_template(vha);
/* Determine what we need to do */
if ((ha->current_topology == ISP_CFG_FL ||
ha->current_topology == ISP_CFG_F) &&
(test_bit(LOCAL_LOOP_UPDATE, &flags))) {
set_bit(RSCN_UPDATE, &flags);
clear_bit(LOCAL_LOOP_UPDATE, &flags);
} else if (ha->current_topology == ISP_CFG_NL ||
ha->current_topology == ISP_CFG_N) {
clear_bit(RSCN_UPDATE, &flags);
set_bit(LOCAL_LOOP_UPDATE, &flags);
} else if (!vha->flags.online ||
(test_bit(ABORT_ISP_ACTIVE, &flags))) {
set_bit(RSCN_UPDATE, &flags);
set_bit(LOCAL_LOOP_UPDATE, &flags);
}
if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
ql_dbg(ql_dbg_disc, vha, 0x2015,
"Loop resync needed, failing.\n");
rval = QLA_FUNCTION_FAILED;
} else
rval = qla2x00_configure_local_loop(vha);
}
if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
if (LOOP_TRANSITION(vha)) {
ql_dbg(ql_dbg_disc, vha, 0x2099,
"Needs RSCN update and loop transition.\n");
rval = QLA_FUNCTION_FAILED;
}
else
rval = qla2x00_configure_fabric(vha);
}
if (rval == QLA_SUCCESS) {
if (atomic_read(&vha->loop_down_timer) ||
test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
rval = QLA_FUNCTION_FAILED;
} else {
atomic_set(&vha->loop_state, LOOP_READY);
ql_dbg(ql_dbg_disc, vha, 0x2069,
"LOOP READY.\n");
ha->flags.fw_init_done = 1;
/*
* use link up to wake up app to get ready for
* authentication.
*/
if (ha->flags.edif_enabled && DBELL_INACTIVE(vha))
qla2x00_post_aen_work(vha, FCH_EVT_LINKUP,
ha->link_data_rate);
/*
* Process any ATIO queue entries that came in
* while we weren't online.
*/
if (qla_tgt_mode_enabled(vha) ||
qla_dual_mode_enabled(vha)) {
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
qlt_24xx_process_atio_queue(vha, 0);
spin_unlock_irqrestore(&ha->tgt.atio_lock,
flags);
}
}
}
if (rval) {
ql_dbg(ql_dbg_disc, vha, 0x206a,
"%s *** FAILED ***.\n", __func__);
} else {
ql_dbg(ql_dbg_disc, vha, 0x206b,
"%s: exiting normally. local port wwpn %8phN id %06x)\n",
__func__, vha->port_name, vha->d_id.b24);
}
/* Restore state if a resync event occurred during processing */
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
if (test_bit(RSCN_UPDATE, &save_flags)) {
set_bit(RSCN_UPDATE, &vha->dpc_flags);
}
}
return (rval);
}
static int qla2x00_configure_n2n_loop(scsi_qla_host_t *vha)
{
unsigned long flags;
fc_port_t *fcport;
ql_dbg(ql_dbg_disc, vha, 0x206a, "%s %d.\n", __func__, __LINE__);
if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags))
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->n2n_flag) {
qla24xx_fcport_handle_login(vha, fcport);
return QLA_SUCCESS;
}
}
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_retry++;
spin_unlock_irqrestore(&vha->work_lock, flags);
if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
}
return QLA_FUNCTION_FAILED;
}
static void
qla_reinitialize_link(scsi_qla_host_t *vha)
{
int rval;
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
rval = qla2x00_full_login_lip(vha);
if (rval == QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0xd050, "Link reinitialized\n");
} else {
ql_dbg(ql_dbg_disc, vha, 0xd051,
"Link reinitialization failed (%d)\n", rval);
}
}
/*
* qla2x00_configure_local_loop
* Updates Fibre Channel Device Database with local loop devices.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
*/
static int
qla2x00_configure_local_loop(scsi_qla_host_t *vha)
{
int rval, rval2;
int found;
fc_port_t *fcport, *new_fcport;
uint16_t index;
uint16_t entries;
struct gid_list_info *gid;
uint16_t loop_id;
uint8_t domain, area, al_pa;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
/* Inititae N2N login. */
if (N2N_TOPO(ha))
return qla2x00_configure_n2n_loop(vha);
new_fcport = NULL;
entries = MAX_FIBRE_DEVICES_LOOP;
/* Get list of logged in devices. */
memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
&entries);
if (rval != QLA_SUCCESS)
goto err;
ql_dbg(ql_dbg_disc, vha, 0x2011,
"Entries in ID list (%d).\n", entries);
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
ha->gid_list, entries * sizeof(*ha->gid_list));
if (entries == 0) {
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_retry++;
spin_unlock_irqrestore(&vha->work_lock, flags);
if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
u8 loop_map_entries = 0;
int rc;
rc = qla2x00_get_fcal_position_map(vha, NULL,
&loop_map_entries);
if (rc == QLA_SUCCESS && loop_map_entries > 1) {
/*
* There are devices that are still not logged
* in. Reinitialize to give them a chance.
*/
qla_reinitialize_link(vha);
return QLA_FUNCTION_FAILED;
}
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
}
} else {
vha->scan.scan_retry = 0;
}
list_for_each_entry(fcport, &vha->vp_fcports, list) {
fcport->scan_state = QLA_FCPORT_SCAN;
}
/* Allocate temporary fcport for any new fcports discovered. */
new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (new_fcport == NULL) {
ql_log(ql_log_warn, vha, 0x2012,
"Memory allocation failed for fcport.\n");
rval = QLA_MEMORY_ALLOC_FAILED;
goto err;
}
new_fcport->flags &= ~FCF_FABRIC_DEVICE;
/* Add devices to port list. */
gid = ha->gid_list;
for (index = 0; index < entries; index++) {
domain = gid->domain;
area = gid->area;
al_pa = gid->al_pa;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
loop_id = gid->loop_id_2100;
else
loop_id = le16_to_cpu(gid->loop_id);
gid = (void *)gid + ha->gid_list_info_size;
/* Bypass reserved domain fields. */
if ((domain & 0xf0) == 0xf0)
continue;
/* Bypass if not same domain and area of adapter. */
if (area && domain && ((area != vha->d_id.b.area) ||
(domain != vha->d_id.b.domain)) &&
(ha->current_topology == ISP_CFG_NL))
continue;
/* Bypass invalid local loop ID. */
if (loop_id > LAST_LOCAL_LOOP_ID)
continue;
memset(new_fcport->port_name, 0, WWN_SIZE);
/* Fill in member data. */
new_fcport->d_id.b.domain = domain;
new_fcport->d_id.b.area = area;
new_fcport->d_id.b.al_pa = al_pa;
new_fcport->loop_id = loop_id;
new_fcport->scan_state = QLA_FCPORT_FOUND;
rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
if (rval2 != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x2097,
"Failed to retrieve fcport information "
"-- get_port_database=%x, loop_id=0x%04x.\n",
rval2, new_fcport->loop_id);
/* Skip retry if N2N */
if (ha->current_topology != ISP_CFG_N) {
ql_dbg(ql_dbg_disc, vha, 0x2105,
"Scheduling resync.\n");
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
continue;
}
}
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
/* Check for matching device in port list. */
found = 0;
fcport = NULL;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (memcmp(new_fcport->port_name, fcport->port_name,
WWN_SIZE))
continue;
fcport->flags &= ~FCF_FABRIC_DEVICE;
fcport->loop_id = new_fcport->loop_id;
fcport->port_type = new_fcport->port_type;
fcport->d_id.b24 = new_fcport->d_id.b24;
memcpy(fcport->node_name, new_fcport->node_name,
WWN_SIZE);
fcport->scan_state = QLA_FCPORT_FOUND;
if (fcport->login_retry == 0) {
fcport->login_retry = vha->hw->login_retry_count;
ql_dbg(ql_dbg_disc, vha, 0x2135,
"Port login retry %8phN, lid 0x%04x retry cnt=%d.\n",
fcport->port_name, fcport->loop_id,
fcport->login_retry);
}
found++;
break;
}
if (!found) {
/* New device, add to fcports list. */
list_add_tail(&new_fcport->list, &vha->vp_fcports);
/* Allocate a new replacement fcport. */
fcport = new_fcport;
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (new_fcport == NULL) {
ql_log(ql_log_warn, vha, 0xd031,
"Failed to allocate memory for fcport.\n");
rval = QLA_MEMORY_ALLOC_FAILED;
goto err;
}
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
new_fcport->flags &= ~FCF_FABRIC_DEVICE;
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
/* Base iIDMA settings on HBA port speed. */
fcport->fp_speed = ha->link_data_rate;
}
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
break;
if (fcport->scan_state == QLA_FCPORT_SCAN) {
if ((qla_dual_mode_enabled(vha) ||
qla_ini_mode_enabled(vha)) &&
atomic_read(&fcport->state) == FCS_ONLINE) {
qla2x00_mark_device_lost(vha, fcport,
ql2xplogiabsentdevice);
if (fcport->loop_id != FC_NO_LOOP_ID &&
(fcport->flags & FCF_FCP2_DEVICE) == 0 &&
fcport->port_type != FCT_INITIATOR &&
fcport->port_type != FCT_BROADCAST) {
ql_dbg(ql_dbg_disc, vha, 0x20f0,
"%s %d %8phC post del sess\n",
__func__, __LINE__,
fcport->port_name);
qlt_schedule_sess_for_deletion(fcport);
continue;
}
}
}
if (fcport->scan_state == QLA_FCPORT_FOUND)
qla24xx_fcport_handle_login(vha, fcport);
}
qla2x00_free_fcport(new_fcport);
return rval;
err:
ql_dbg(ql_dbg_disc, vha, 0x2098,
"Configure local loop error exit: rval=%x.\n", rval);
return rval;
}
static void
qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
{
int rval;
uint16_t mb[MAILBOX_REGISTER_COUNT];
struct qla_hw_data *ha = vha->hw;
if (!IS_IIDMA_CAPABLE(ha))
return;
if (atomic_read(&fcport->state) != FCS_ONLINE)
return;
if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
fcport->fp_speed > ha->link_data_rate ||
!ha->flags.gpsc_supported)
return;
rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
mb);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x2004,
"Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
} else {
ql_dbg(ql_dbg_disc, vha, 0x2005,
"iIDMA adjusted to %s GB/s (%X) on %8phN.\n",
qla2x00_get_link_speed_str(ha, fcport->fp_speed),
fcport->fp_speed, fcport->port_name);
}
}
void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
{
qla2x00_iidma_fcport(vha, fcport);
qla24xx_update_fcport_fcp_prio(vha, fcport);
}
int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_IIDMA);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.fcport.fcport = fcport;
return qla2x00_post_work(vha, e);
}
/* qla2x00_reg_remote_port is reserved for Initiator Mode only.*/
static void
qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
{
struct fc_rport_identifiers rport_ids;
struct fc_rport *rport;
unsigned long flags;
if (atomic_read(&fcport->state) == FCS_ONLINE)
return;
rport_ids.node_name = wwn_to_u64(fcport->node_name);
rport_ids.port_name = wwn_to_u64(fcport->port_name);
rport_ids.port_id = fcport->d_id.b.domain << 16 |
fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
if (!rport) {
ql_log(ql_log_warn, vha, 0x2006,
"Unable to allocate fc remote port.\n");
return;
}
spin_lock_irqsave(fcport->vha->host->host_lock, flags);
*((fc_port_t **)rport->dd_data) = fcport;
spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
fcport->dev_loss_tmo = rport->dev_loss_tmo;
rport->supported_classes = fcport->supported_classes;
rport_ids.roles = FC_PORT_ROLE_UNKNOWN;
if (fcport->port_type == FCT_INITIATOR)
rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
if (fcport->port_type == FCT_TARGET)
rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
if (fcport->port_type & FCT_NVME_INITIATOR)
rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
if (fcport->port_type & FCT_NVME_TARGET)
rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
if (fcport->port_type & FCT_NVME_DISCOVERY)
rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
fc_remote_port_rolechg(rport, rport_ids.roles);
ql_dbg(ql_dbg_disc, vha, 0x20ee,
"%s: %8phN. rport %ld:0:%d (%p) is %s mode\n",
__func__, fcport->port_name, vha->host_no,
rport->scsi_target_id, rport,
(fcport->port_type == FCT_TARGET) ? "tgt" :
((fcport->port_type & FCT_NVME) ? "nvme" : "ini"));
}
/*
* qla2x00_update_fcport
* Updates device on list.
*
* Input:
* ha = adapter block pointer.
* fcport = port structure pointer.
*
* Return:
* 0 - Success
* BIT_0 - error
*
* Context:
* Kernel context.
*/
void
qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
{
unsigned long flags;
if (IS_SW_RESV_ADDR(fcport->d_id))
return;
ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %8phC\n",
__func__, fcport->port_name);
qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
fcport->login_retry = vha->hw->login_retry_count;
fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
spin_lock_irqsave(&vha->work_lock, flags);
fcport->deleted = 0;
spin_unlock_irqrestore(&vha->work_lock, flags);
if (vha->hw->current_topology == ISP_CFG_NL)
fcport->logout_on_delete = 0;
else
fcport->logout_on_delete = 1;
fcport->n2n_chip_reset = fcport->n2n_link_reset_cnt = 0;
if (fcport->tgt_link_down_time < fcport->dev_loss_tmo) {
fcport->tgt_short_link_down_cnt++;
fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
}
switch (vha->hw->current_topology) {
case ISP_CFG_N:
case ISP_CFG_NL:
fcport->keep_nport_handle = 1;
break;
default:
break;
}
qla2x00_iidma_fcport(vha, fcport);
qla2x00_dfs_create_rport(vha, fcport);
qla24xx_update_fcport_fcp_prio(vha, fcport);
switch (vha->host->active_mode) {
case MODE_INITIATOR:
qla2x00_reg_remote_port(vha, fcport);
break;
case MODE_TARGET:
if (!vha->vha_tgt.qla_tgt->tgt_stop &&
!vha->vha_tgt.qla_tgt->tgt_stopped)
qlt_fc_port_added(vha, fcport);
break;
case MODE_DUAL:
qla2x00_reg_remote_port(vha, fcport);
if (!vha->vha_tgt.qla_tgt->tgt_stop &&
!vha->vha_tgt.qla_tgt->tgt_stopped)
qlt_fc_port_added(vha, fcport);
break;
default:
break;
}
if (NVME_TARGET(vha->hw, fcport))
qla_nvme_register_remote(vha, fcport);
qla2x00_set_fcport_state(fcport, FCS_ONLINE);
if (IS_IIDMA_CAPABLE(vha->hw) && vha->hw->flags.gpsc_supported) {
if (fcport->id_changed) {
fcport->id_changed = 0;
ql_dbg(ql_dbg_disc, vha, 0x20d7,
"%s %d %8phC post gfpnid fcp_cnt %d\n",
__func__, __LINE__, fcport->port_name,
vha->fcport_count);
qla24xx_post_gfpnid_work(vha, fcport);
} else {
ql_dbg(ql_dbg_disc, vha, 0x20d7,
"%s %d %8phC post gpsc fcp_cnt %d\n",
__func__, __LINE__, fcport->port_name,
vha->fcport_count);
qla24xx_post_gpsc_work(vha, fcport);
}
}
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
}
void qla_register_fcport_fn(struct work_struct *work)
{
fc_port_t *fcport = container_of(work, struct fc_port, reg_work);
u32 rscn_gen = fcport->rscn_gen;
u16 data[2];
if (IS_SW_RESV_ADDR(fcport->d_id))
return;
qla2x00_update_fcport(fcport->vha, fcport);
ql_dbg(ql_dbg_disc, fcport->vha, 0x911e,
"%s rscn gen %d/%d next DS %d\n", __func__,
rscn_gen, fcport->rscn_gen, fcport->next_disc_state);
if (rscn_gen != fcport->rscn_gen) {
/* RSCN(s) came in while registration */
switch (fcport->next_disc_state) {
case DSC_DELETE_PEND:
qlt_schedule_sess_for_deletion(fcport);
break;
case DSC_ADISC:
data[0] = data[1] = 0;
qla2x00_post_async_adisc_work(fcport->vha, fcport,
data);
break;
default:
break;
}
}
}
/*
* qla2x00_configure_fabric
* Setup SNS devices with loop ID's.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
* BIT_0 = error
*/
static int
qla2x00_configure_fabric(scsi_qla_host_t *vha)
{
int rval;
fc_port_t *fcport;
uint16_t mb[MAILBOX_REGISTER_COUNT];
uint16_t loop_id;
struct qla_hw_data *ha = vha->hw;
int discovery_gen;
/* If FL port exists, then SNS is present */
if (IS_FWI2_CAPABLE(ha))
loop_id = NPH_F_PORT;
else
loop_id = SNS_FL_PORT;
rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x20a0,
"MBX_GET_PORT_NAME failed, No FL Port.\n");
vha->device_flags &= ~SWITCH_FOUND;
return (QLA_SUCCESS);
}
vha->device_flags |= SWITCH_FOUND;
rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_port_name, 0);
if (rval != QLA_SUCCESS)
ql_dbg(ql_dbg_disc, vha, 0x20ff,
"Failed to get Fabric Port Name\n");
if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
rval = qla2x00_send_change_request(vha, 0x3, 0);
if (rval != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0x121,
"Failed to enable receiving of RSCN requests: 0x%x.\n",
rval);
}
do {
qla2x00_mgmt_svr_login(vha);
/* Ensure we are logged into the SNS. */
loop_id = NPH_SNS_LID(ha);
rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
0xfc, mb, BIT_1|BIT_0);
if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_disc, vha, 0x20a1,
"Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x (%x).\n",
loop_id, mb[0], mb[1], mb[2], mb[6], mb[7], rval);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
return rval;
}
/* FDMI support. */
if (ql2xfdmienable &&
test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
qla2x00_fdmi_register(vha);
if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
if (qla2x00_rft_id(vha)) {
/* EMPTY */
ql_dbg(ql_dbg_disc, vha, 0x20a2,
"Register FC-4 TYPE failed.\n");
if (test_bit(LOOP_RESYNC_NEEDED,
&vha->dpc_flags))
break;
}
if (qla2x00_rff_id(vha, FC4_TYPE_FCP_SCSI)) {
/* EMPTY */
ql_dbg(ql_dbg_disc, vha, 0x209a,
"Register FC-4 Features failed.\n");
if (test_bit(LOOP_RESYNC_NEEDED,
&vha->dpc_flags))
break;
}
if (vha->flags.nvme_enabled) {
if (qla2x00_rff_id(vha, FC_TYPE_NVME)) {
ql_dbg(ql_dbg_disc, vha, 0x2049,
"Register NVME FC Type Features failed.\n");
}
}
if (qla2x00_rnn_id(vha)) {
/* EMPTY */
ql_dbg(ql_dbg_disc, vha, 0x2104,
"Register Node Name failed.\n");
if (test_bit(LOOP_RESYNC_NEEDED,
&vha->dpc_flags))
break;
} else if (qla2x00_rsnn_nn(vha)) {
/* EMPTY */
ql_dbg(ql_dbg_disc, vha, 0x209b,
"Register Symbolic Node Name failed.\n");
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
break;
}
}
/* Mark the time right before querying FW for connected ports.
* This process is long, asynchronous and by the time it's done,
* collected information might not be accurate anymore. E.g.
* disconnected port might have re-connected and a brand new
* session has been created. In this case session's generation
* will be newer than discovery_gen. */
qlt_do_generation_tick(vha, &discovery_gen);
if (USE_ASYNC_SCAN(ha)) {
rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI,
NULL);
if (rval)
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
} else {
list_for_each_entry(fcport, &vha->vp_fcports, list)
fcport->scan_state = QLA_FCPORT_SCAN;
rval = qla2x00_find_all_fabric_devs(vha);
}
if (rval != QLA_SUCCESS)
break;
} while (0);
if (!vha->nvme_local_port && vha->flags.nvme_enabled)
qla_nvme_register_hba(vha);
if (rval)
ql_dbg(ql_dbg_disc, vha, 0x2068,
"Configure fabric error exit rval=%d.\n", rval);
return (rval);
}
/*
* qla2x00_find_all_fabric_devs
*
* Input:
* ha = adapter block pointer.
* dev = database device entry pointer.
*
* Returns:
* 0 = success.
*
* Context:
* Kernel context.
*/
static int
qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
{
int rval;
uint16_t loop_id;
fc_port_t *fcport, *new_fcport;
int found;
sw_info_t *swl;
int swl_idx;
int first_dev, last_dev;
port_id_t wrap = {}, nxt_d_id;
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
unsigned long flags;
rval = QLA_SUCCESS;
/* Try GID_PT to get device list, else GAN. */
if (!ha->swl)
ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
GFP_KERNEL);
swl = ha->swl;
if (!swl) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x209c,
"GID_PT allocations failed, fallback on GA_NXT.\n");
} else {
memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
swl = NULL;
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
return rval;
} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
swl = NULL;
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
return rval;
} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
swl = NULL;
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
return rval;
} else if (qla2x00_gfpn_id(vha, swl) != QLA_SUCCESS) {
swl = NULL;
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
return rval;
}
/* If other queries succeeded probe for FC-4 type */
if (swl) {
qla2x00_gff_id(vha, swl);
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
return rval;
}
}
swl_idx = 0;
/* Allocate temporary fcport for any new fcports discovered. */
new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (new_fcport == NULL) {
ql_log(ql_log_warn, vha, 0x209d,
"Failed to allocate memory for fcport.\n");
return (QLA_MEMORY_ALLOC_FAILED);
}
new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
/* Set start port ID scan at adapter ID. */
first_dev = 1;
last_dev = 0;
/* Starting free loop ID. */
loop_id = ha->min_external_loopid;
for (; loop_id <= ha->max_loop_id; loop_id++) {
if (qla2x00_is_reserved_id(vha, loop_id))
continue;
if (ha->current_topology == ISP_CFG_FL &&
(atomic_read(&vha->loop_down_timer) ||
LOOP_TRANSITION(vha))) {
atomic_set(&vha->loop_down_timer, 0);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
break;
}
if (swl != NULL) {
if (last_dev) {
wrap.b24 = new_fcport->d_id.b24;
} else {
new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
memcpy(new_fcport->node_name,
swl[swl_idx].node_name, WWN_SIZE);
memcpy(new_fcport->port_name,
swl[swl_idx].port_name, WWN_SIZE);
memcpy(new_fcport->fabric_port_name,
swl[swl_idx].fabric_port_name, WWN_SIZE);
new_fcport->fp_speed = swl[swl_idx].fp_speed;
new_fcport->fc4_type = swl[swl_idx].fc4_type;
new_fcport->nvme_flag = 0;
if (vha->flags.nvme_enabled &&
swl[swl_idx].fc4_type & FS_FC4TYPE_NVME) {
ql_log(ql_log_info, vha, 0x2131,
"FOUND: NVME port %8phC as FC Type 28h\n",
new_fcport->port_name);
}
if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
last_dev = 1;
}
swl_idx++;
}
} else {
/* Send GA_NXT to the switch */
rval = qla2x00_ga_nxt(vha, new_fcport);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x209e,
"SNS scan failed -- assuming "
"zero-entry result.\n");
rval = QLA_SUCCESS;
break;
}
}
/* If wrap on switch device list, exit. */
if (first_dev) {
wrap.b24 = new_fcport->d_id.b24;
first_dev = 0;
} else if (new_fcport->d_id.b24 == wrap.b24) {
ql_dbg(ql_dbg_disc, vha, 0x209f,
"Device wrap (%02x%02x%02x).\n",
new_fcport->d_id.b.domain,
new_fcport->d_id.b.area,
new_fcport->d_id.b.al_pa);
break;
}
/* Bypass if same physical adapter. */
if (new_fcport->d_id.b24 == base_vha->d_id.b24)
continue;
/* Bypass virtual ports of the same host. */
if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
continue;
/* Bypass if same domain and area of adapter. */
if (((new_fcport->d_id.b24 & 0xffff00) ==
(vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
ISP_CFG_FL)
continue;
/* Bypass reserved domain fields. */
if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
continue;
/* Bypass ports whose FCP-4 type is not FCP_SCSI */
if (ql2xgffidenable &&
(!(new_fcport->fc4_type & FS_FC4TYPE_FCP) &&
new_fcport->fc4_type != 0))
continue;
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
/* Locate matching device in database. */
found = 0;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (memcmp(new_fcport->port_name, fcport->port_name,
WWN_SIZE))
continue;
fcport->scan_state = QLA_FCPORT_FOUND;
found++;
/* Update port state. */
memcpy(fcport->fabric_port_name,
new_fcport->fabric_port_name, WWN_SIZE);
fcport->fp_speed = new_fcport->fp_speed;
/*
* If address the same and state FCS_ONLINE
* (or in target mode), nothing changed.
*/
if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
(atomic_read(&fcport->state) == FCS_ONLINE ||
(vha->host->active_mode == MODE_TARGET))) {
break;
}
if (fcport->login_retry == 0)
fcport->login_retry =
vha->hw->login_retry_count;
/*
* If device was not a fabric device before.
*/
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
fcport->d_id.b24 = new_fcport->d_id.b24;
qla2x00_clear_loop_id(fcport);
fcport->flags |= (FCF_FABRIC_DEVICE |
FCF_LOGIN_NEEDED);
break;
}
/*
* Port ID changed or device was marked to be updated;
* Log it out if still logged in and mark it for
* relogin later.
*/
if (qla_tgt_mode_enabled(base_vha)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
"port changed FC ID, %8phC"
" old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
fcport->port_name,
fcport->d_id.b.domain,
fcport->d_id.b.area,
fcport->d_id.b.al_pa,
fcport->loop_id,
new_fcport->d_id.b.domain,
new_fcport->d_id.b.area,
new_fcport->d_id.b.al_pa);
fcport->d_id.b24 = new_fcport->d_id.b24;
break;
}
fcport->d_id.b24 = new_fcport->d_id.b24;
fcport->flags |= FCF_LOGIN_NEEDED;
break;
}
if (found && NVME_TARGET(vha->hw, fcport)) {
if (fcport->disc_state == DSC_DELETE_PEND) {
qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
vha->fcport_count--;
fcport->login_succ = 0;
}
}
if (found) {
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
continue;
}
/* If device was not in our fcports list, then add it. */
new_fcport->scan_state = QLA_FCPORT_FOUND;
list_add_tail(&new_fcport->list, &vha->vp_fcports);
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
/* Allocate a new replacement fcport. */
nxt_d_id.b24 = new_fcport->d_id.b24;
new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (new_fcport == NULL) {
ql_log(ql_log_warn, vha, 0xd032,
"Memory allocation failed for fcport.\n");
return (QLA_MEMORY_ALLOC_FAILED);
}
new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
new_fcport->d_id.b24 = nxt_d_id.b24;
}
qla2x00_free_fcport(new_fcport);
/*
* Logout all previous fabric dev marked lost, except FCP2 devices.
*/
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
break;
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
continue;
if (fcport->scan_state == QLA_FCPORT_SCAN) {
if ((qla_dual_mode_enabled(vha) ||
qla_ini_mode_enabled(vha)) &&
atomic_read(&fcport->state) == FCS_ONLINE) {
qla2x00_mark_device_lost(vha, fcport,
ql2xplogiabsentdevice);
if (fcport->loop_id != FC_NO_LOOP_ID &&
(fcport->flags & FCF_FCP2_DEVICE) == 0 &&
fcport->port_type != FCT_INITIATOR &&
fcport->port_type != FCT_BROADCAST) {
ql_dbg(ql_dbg_disc, vha, 0x20f0,
"%s %d %8phC post del sess\n",
__func__, __LINE__,
fcport->port_name);
qlt_schedule_sess_for_deletion(fcport);
continue;
}
}
}
if (fcport->scan_state == QLA_FCPORT_FOUND &&
(fcport->flags & FCF_LOGIN_NEEDED) != 0)
qla24xx_fcport_handle_login(vha, fcport);
}
return (rval);
}
/* FW does not set aside Loop id for MGMT Server/FFFFFAh */
int
qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *vha)
{
int loop_id = FC_NO_LOOP_ID;
int lid = NPH_MGMT_SERVER - vha->vp_idx;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
if (vha->vp_idx == 0) {
set_bit(NPH_MGMT_SERVER, ha->loop_id_map);
return NPH_MGMT_SERVER;
}
/* pick id from high and work down to low */
spin_lock_irqsave(&ha->vport_slock, flags);
for (; lid > 0; lid--) {
if (!test_bit(lid, vha->hw->loop_id_map)) {
set_bit(lid, vha->hw->loop_id_map);
loop_id = lid;
break;
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
return loop_id;
}
/*
* qla2x00_fabric_login
* Issue fabric login command.
*
* Input:
* ha = adapter block pointer.
* device = pointer to FC device type structure.
*
* Returns:
* 0 - Login successfully
* 1 - Login failed
* 2 - Initiator device
* 3 - Fatal error
*/
int
qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
uint16_t *next_loopid)
{
int rval;
int retry;
uint16_t tmp_loopid;
uint16_t mb[MAILBOX_REGISTER_COUNT];
struct qla_hw_data *ha = vha->hw;
retry = 0;
tmp_loopid = 0;
for (;;) {
ql_dbg(ql_dbg_disc, vha, 0x2000,
"Trying Fabric Login w/loop id 0x%04x for port "
"%02x%02x%02x.\n",
fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
/* Login fcport on switch. */
rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa, mb, BIT_0);
if (rval != QLA_SUCCESS) {
return rval;
}
if (mb[0] == MBS_PORT_ID_USED) {
/*
* Device has another loop ID. The firmware team
* recommends the driver perform an implicit login with
* the specified ID again. The ID we just used is save
* here so we return with an ID that can be tried by
* the next login.
*/
retry++;
tmp_loopid = fcport->loop_id;
fcport->loop_id = mb[1];
ql_dbg(ql_dbg_disc, vha, 0x2001,
"Fabric Login: port in use - next loop "
"id=0x%04x, port id= %02x%02x%02x.\n",
fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
} else if (mb[0] == MBS_COMMAND_COMPLETE) {
/*
* Login succeeded.
*/
if (retry) {
/* A retry occurred before. */
*next_loopid = tmp_loopid;
} else {
/*
* No retry occurred before. Just increment the
* ID value for next login.
*/
*next_loopid = (fcport->loop_id + 1);
}
if (mb[1] & BIT_0) {
fcport->port_type = FCT_INITIATOR;
} else {
fcport->port_type = FCT_TARGET;
if (mb[1] & BIT_1) {
fcport->flags |= FCF_FCP2_DEVICE;
}
}
if (mb[10] & BIT_0)
fcport->supported_classes |= FC_COS_CLASS2;
if (mb[10] & BIT_1)
fcport->supported_classes |= FC_COS_CLASS3;
if (IS_FWI2_CAPABLE(ha)) {
if (mb[10] & BIT_7)
fcport->flags |=
FCF_CONF_COMP_SUPPORTED;
}
rval = QLA_SUCCESS;
break;
} else if (mb[0] == MBS_LOOP_ID_USED) {
/*
* Loop ID already used, try next loop ID.
*/
fcport->loop_id++;
rval = qla2x00_find_new_loop_id(vha, fcport);
if (rval != QLA_SUCCESS) {
/* Ran out of loop IDs to use */
break;
}
} else if (mb[0] == MBS_COMMAND_ERROR) {
/*
* Firmware possibly timed out during login. If NO
* retries are left to do then the device is declared
* dead.
*/
*next_loopid = fcport->loop_id;
ha->isp_ops->fabric_logout(vha, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa);
qla2x00_mark_device_lost(vha, fcport, 1);
rval = 1;
break;
} else {
/*
* unrecoverable / not handled error
*/
ql_dbg(ql_dbg_disc, vha, 0x2002,
"Failed=%x port_id=%02x%02x%02x loop_id=%x "
"jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa,
fcport->loop_id, jiffies);
*next_loopid = fcport->loop_id;
ha->isp_ops->fabric_logout(vha, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa);
qla2x00_clear_loop_id(fcport);
fcport->login_retry = 0;
rval = 3;
break;
}
}
return (rval);
}
/*
* qla2x00_local_device_login
* Issue local device login command.
*
* Input:
* ha = adapter block pointer.
* loop_id = loop id of device to login to.
*
* Returns (Where's the #define!!!!):
* 0 - Login successfully
* 1 - Login failed
* 3 - Fatal error
*/
int
qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
{
int rval;
uint16_t mb[MAILBOX_REGISTER_COUNT];
memset(mb, 0, sizeof(mb));
rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
if (rval == QLA_SUCCESS) {
/* Interrogate mailbox registers for any errors */
if (mb[0] == MBS_COMMAND_ERROR)
rval = 1;
else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
/* device not in PCB table */
rval = 3;
}
return (rval);
}
/*
* qla2x00_loop_resync
* Resync with fibre channel devices.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_loop_resync(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
uint32_t wait_time;
clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
if (vha->flags.online) {
if (!(rval = qla2x00_fw_ready(vha))) {
/* Wait at most MAX_TARGET RSCNs for a stable link. */
wait_time = 256;
do {
if (!IS_QLAFX00(vha->hw)) {
/*
* Issue a marker after FW becomes
* ready.
*/
qla2x00_marker(vha, vha->hw->base_qpair,
0, 0, MK_SYNC_ALL);
vha->marker_needed = 0;
}
/* Remap devices on Loop. */
clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
if (IS_QLAFX00(vha->hw))
qlafx00_configure_devices(vha);
else
qla2x00_configure_loop(vha);
wait_time--;
} while (!atomic_read(&vha->loop_down_timer) &&
!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
&vha->dpc_flags)));
}
}
if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
return (QLA_FUNCTION_FAILED);
if (rval)
ql_dbg(ql_dbg_disc, vha, 0x206c,
"%s *** FAILED ***.\n", __func__);
return (rval);
}
/*
* qla2x00_perform_loop_resync
* Description: This function will set the appropriate flags and call
* qla2x00_loop_resync. If successful loop will be resynced
* Arguments : scsi_qla_host_t pointer
* returm : Success or Failure
*/
int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
{
int32_t rval = 0;
if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
/*Configure the flags so that resync happens properly*/
atomic_set(&ha->loop_down_timer, 0);
if (!(ha->device_flags & DFLG_NO_CABLE)) {
atomic_set(&ha->loop_state, LOOP_UP);
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
rval = qla2x00_loop_resync(ha);
} else
atomic_set(&ha->loop_state, LOOP_DEAD);
clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
}
return rval;
}
/* Assumes idc_lock always held on entry */
void
qla83xx_reset_ownership(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t drv_presence, drv_presence_mask;
uint32_t dev_part_info1, dev_part_info2, class_type;
uint32_t class_type_mask = 0x3;
uint16_t fcoe_other_function = 0xffff, i;
if (IS_QLA8044(ha)) {
drv_presence = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
dev_part_info1 = qla8044_rd_direct(vha,
QLA8044_CRB_DEV_PART_INFO_INDEX);
dev_part_info2 = qla8044_rd_direct(vha,
QLA8044_CRB_DEV_PART_INFO2);
} else {
qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
}
for (i = 0; i < 8; i++) {
class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
(i != ha->portnum)) {
fcoe_other_function = i;
break;
}
}
if (fcoe_other_function == 0xffff) {
for (i = 0; i < 8; i++) {
class_type = ((dev_part_info2 >> (i * 4)) &
class_type_mask);
if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
((i + 8) != ha->portnum)) {
fcoe_other_function = i + 8;
break;
}
}
}
/*
* Prepare drv-presence mask based on fcoe functions present.
* However consider only valid physical fcoe function numbers (0-15).
*/
drv_presence_mask = ~((1 << (ha->portnum)) |
((fcoe_other_function == 0xffff) ?
0 : (1 << (fcoe_other_function))));
/* We are the reset owner iff:
* - No other protocol drivers present.
* - This is the lowest among fcoe functions. */
if (!(drv_presence & drv_presence_mask) &&
(ha->portnum < fcoe_other_function)) {
ql_dbg(ql_dbg_p3p, vha, 0xb07f,
"This host is Reset owner.\n");
ha->flags.nic_core_reset_owner = 1;
}
}
static int
__qla83xx_set_drv_ack(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
uint32_t drv_ack;
rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
if (rval == QLA_SUCCESS) {
drv_ack |= (1 << ha->portnum);
rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
}
return rval;
}
static int
__qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
uint32_t drv_ack;
rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
if (rval == QLA_SUCCESS) {
drv_ack &= ~(1 << ha->portnum);
rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
}
return rval;
}
/* Assumes idc-lock always held on entry */
void
qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
{
struct qla_hw_data *ha = vha->hw;
uint32_t idc_audit_reg = 0, duration_secs = 0;
switch (audit_type) {
case IDC_AUDIT_TIMESTAMP:
ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
idc_audit_reg = (ha->portnum) |
(IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
break;
case IDC_AUDIT_COMPLETION:
duration_secs = ((jiffies_to_msecs(jiffies) -
jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
idc_audit_reg = (ha->portnum) |
(IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
break;
default:
ql_log(ql_log_warn, vha, 0xb078,
"Invalid audit type specified.\n");
break;
}
}
/* Assumes idc_lock always held on entry */
static int
qla83xx_initiating_reset(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t idc_control, dev_state;
__qla83xx_get_idc_control(vha, &idc_control);
if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
ql_log(ql_log_info, vha, 0xb080,
"NIC Core reset has been disabled. idc-control=0x%x\n",
idc_control);
return QLA_FUNCTION_FAILED;
}
/* Set NEED-RESET iff in READY state and we are the reset-owner */
qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
QLA8XXX_DEV_NEED_RESET);
ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
} else {
ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n",
qdev_state(dev_state));
/* SV: XXX: Is timeout required here? */
/* Wait for IDC state change READY -> NEED_RESET */
while (dev_state == QLA8XXX_DEV_READY) {
qla83xx_idc_unlock(vha, 0);
msleep(200);
qla83xx_idc_lock(vha, 0);
qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
}
}
/* Send IDC ack by writing to drv-ack register */
__qla83xx_set_drv_ack(vha);
return QLA_SUCCESS;
}
int
__qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
{
return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
}
int
__qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
{
return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
}
static int
qla83xx_check_driver_presence(scsi_qla_host_t *vha)
{
uint32_t drv_presence = 0;
struct qla_hw_data *ha = vha->hw;
qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
if (drv_presence & (1 << ha->portnum))
return QLA_SUCCESS;
else
return QLA_TEST_FAILED;
}
int
qla83xx_nic_core_reset(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_p3p, vha, 0xb058,
"Entered %s().\n", __func__);
if (vha->device_flags & DFLG_DEV_FAILED) {
ql_log(ql_log_warn, vha, 0xb059,
"Device in unrecoverable FAILED state.\n");
return QLA_FUNCTION_FAILED;
}
qla83xx_idc_lock(vha, 0);
if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xb05a,
"Function=0x%x has been removed from IDC participation.\n",
ha->portnum);
rval = QLA_FUNCTION_FAILED;
goto exit;
}
qla83xx_reset_ownership(vha);
rval = qla83xx_initiating_reset(vha);
/*
* Perform reset if we are the reset-owner,
* else wait till IDC state changes to READY/FAILED.
*/
if (rval == QLA_SUCCESS) {
rval = qla83xx_idc_state_handler(vha);
if (rval == QLA_SUCCESS)
ha->flags.nic_core_hung = 0;
__qla83xx_clear_drv_ack(vha);
}
exit:
qla83xx_idc_unlock(vha, 0);
ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
return rval;
}
int
qla2xxx_mctp_dump(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_FUNCTION_FAILED;
if (!IS_MCTP_CAPABLE(ha)) {
/* This message can be removed from the final version */
ql_log(ql_log_info, vha, 0x506d,
"This board is not MCTP capable\n");
return rval;
}
if (!ha->mctp_dump) {
ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
if (!ha->mctp_dump) {
ql_log(ql_log_warn, vha, 0x506e,
"Failed to allocate memory for mctp dump\n");
return rval;
}
}
#define MCTP_DUMP_STR_ADDR 0x00000000
rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x506f,
"Failed to capture mctp dump\n");
} else {
ql_log(ql_log_info, vha, 0x5070,
"Mctp dump capture for host (%ld/%p).\n",
vha->host_no, ha->mctp_dump);
ha->mctp_dumped = 1;
}
if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
ha->flags.nic_core_reset_hdlr_active = 1;
rval = qla83xx_restart_nic_firmware(vha);
if (rval)
/* NIC Core reset failed. */
ql_log(ql_log_warn, vha, 0x5071,
"Failed to restart nic firmware\n");
else
ql_dbg(ql_dbg_p3p, vha, 0xb084,
"Restarted NIC firmware successfully.\n");
ha->flags.nic_core_reset_hdlr_active = 0;
}
return rval;
}
/*
* qla2x00_quiesce_io
* Description: This function will block the new I/Os
* Its not aborting any I/Os as context
* is not destroyed during quiescence
* Arguments: scsi_qla_host_t
* return : void
*/
void
qla2x00_quiesce_io(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *vp, *tvp;
unsigned long flags;
ql_dbg(ql_dbg_dpc, vha, 0x401d,
"Quiescing I/O - ha=%p.\n", ha);
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
qla2x00_mark_all_devices_lost(vha);
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
qla2x00_mark_all_devices_lost(vp);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
} else {
if (!atomic_read(&vha->loop_down_timer))
atomic_set(&vha->loop_down_timer,
LOOP_DOWN_TIME);
}
/* Wait for pending cmds to complete */
WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
!= QLA_SUCCESS);
}
void
qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *vp, *tvp;
unsigned long flags;
fc_port_t *fcport;
u16 i;
/* For ISP82XX, driver waits for completion of the commands.
* online flag should be set.
*/
if (!(IS_P3P_TYPE(ha)))
vha->flags.online = 0;
ha->flags.chip_reset_done = 0;
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
vha->qla_stats.total_isp_aborts++;
ql_log(ql_log_info, vha, 0x00af,
"Performing ISP error recovery - ha=%p.\n", ha);
ha->flags.purge_mbox = 1;
/* For ISP82XX, reset_chip is just disabling interrupts.
* Driver waits for the completion of the commands.
* the interrupts need to be enabled.
*/
if (!(IS_P3P_TYPE(ha)))
ha->isp_ops->reset_chip(vha);
ha->link_data_rate = PORT_SPEED_UNKNOWN;
SAVE_TOPO(ha);
ha->flags.rida_fmt2 = 0;
ha->flags.n2n_ae = 0;
ha->flags.lip_ae = 0;
ha->current_topology = 0;
QLA_FW_STOPPED(ha);
ha->flags.fw_init_done = 0;
ha->chip_reset++;
ha->base_qpair->chip_reset = ha->chip_reset;
ha->base_qpair->cmd_cnt = ha->base_qpair->cmd_completion_cnt = 0;
ha->base_qpair->prev_completion_cnt = 0;
for (i = 0; i < ha->max_qpairs; i++) {
if (ha->queue_pair_map[i]) {
ha->queue_pair_map[i]->chip_reset =
ha->base_qpair->chip_reset;
ha->queue_pair_map[i]->cmd_cnt =
ha->queue_pair_map[i]->cmd_completion_cnt = 0;
ha->base_qpair->prev_completion_cnt = 0;
}
}
/* purge MBox commands */
spin_lock_irqsave(&ha->hardware_lock, flags);
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags)) {
clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
i = 0;
while (atomic_read(&ha->num_pend_mbx_stage2) ||
atomic_read(&ha->num_pend_mbx_stage1)) {
msleep(20);
i++;
if (i > 50)
break;
}
ha->flags.purge_mbox = 0;
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
qla2x00_mark_all_devices_lost(vha);
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
qla2x00_mark_all_devices_lost(vp);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
} else {
if (!atomic_read(&vha->loop_down_timer))
atomic_set(&vha->loop_down_timer,
LOOP_DOWN_TIME);
}
/* Clear all async request states across all VPs. */
list_for_each_entry(fcport, &vha->vp_fcports, list) {
fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
fcport->scan_state = 0;
}
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
list_for_each_entry(fcport, &vp->vp_fcports, list)
fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
/* Make sure for ISP 82XX IO DMA is complete */
if (IS_P3P_TYPE(ha)) {
qla82xx_chip_reset_cleanup(vha);
ql_log(ql_log_info, vha, 0x00b4,
"Done chip reset cleanup.\n");
/* Done waiting for pending commands. Reset online flag */
vha->flags.online = 0;
}
/* Requeue all commands in outstanding command list. */
qla2x00_abort_all_cmds(vha, DID_RESET << 16);
/* memory barrier */
wmb();
}
/*
* qla2x00_abort_isp
* Resets ISP and aborts all outstanding commands.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_abort_isp(scsi_qla_host_t *vha)
{
int rval;
uint8_t status = 0;
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *vp, *tvp;
struct req_que *req = ha->req_q_map[0];
unsigned long flags;
if (vha->flags.online) {
qla2x00_abort_isp_cleanup(vha);
vha->dport_status |= DPORT_DIAG_CHIP_RESET_IN_PROGRESS;
vha->dport_status &= ~DPORT_DIAG_IN_PROGRESS;
if (vha->hw->flags.port_isolated)
return status;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x803f,
"ISP Abort - ISP reg disconnect, exiting.\n");
return status;
}
if (test_and_clear_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags)) {
ha->flags.chip_reset_done = 1;
vha->flags.online = 1;
status = 0;
clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
return status;
}
if (IS_QLA8031(ha)) {
ql_dbg(ql_dbg_p3p, vha, 0xb05c,
"Clearing fcoe driver presence.\n");
if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
ql_dbg(ql_dbg_p3p, vha, 0xb073,
"Error while clearing DRV-Presence.\n");
}
if (unlikely(pci_channel_offline(ha->pdev) &&
ha->flags.pci_channel_io_perm_failure)) {
clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
status = 0;
return status;
}
switch (vha->qlini_mode) {
case QLA2XXX_INI_MODE_DISABLED:
if (!qla_tgt_mode_enabled(vha))
return 0;
break;
case QLA2XXX_INI_MODE_DUAL:
if (!qla_dual_mode_enabled(vha) &&
!qla_ini_mode_enabled(vha))
return 0;
break;
case QLA2XXX_INI_MODE_ENABLED:
default:
break;
}
ha->isp_ops->get_flash_version(vha, req->ring);
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x803f,
"ISP Abort - ISP reg disconnect pre nvram config, exiting.\n");
return status;
}
ha->isp_ops->nvram_config(vha);
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x803f,
"ISP Abort - ISP reg disconnect post nvmram config, exiting.\n");
return status;
}
if (!qla2x00_restart_isp(vha)) {
clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
if (!atomic_read(&vha->loop_down_timer)) {
/*
* Issue marker command only when we are going
* to start the I/O .
*/
vha->marker_needed = 1;
}
vha->flags.online = 1;
ha->isp_ops->enable_intrs(ha);
ha->isp_abort_cnt = 0;
clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
if (IS_QLA81XX(ha) || IS_QLA8031(ha))
qla2x00_get_fw_version(vha);
if (ha->fce) {
ha->flags.fce_enabled = 1;
memset(ha->fce, 0,
fce_calc_size(ha->fce_bufs));
rval = qla2x00_enable_fce_trace(vha,
ha->fce_dma, ha->fce_bufs, ha->fce_mb,
&ha->fce_bufs);
if (rval) {
ql_log(ql_log_warn, vha, 0x8033,
"Unable to reinitialize FCE "
"(%d).\n", rval);
ha->flags.fce_enabled = 0;
}
}
if (ha->eft) {
memset(ha->eft, 0, EFT_SIZE);
rval = qla2x00_enable_eft_trace(vha,
ha->eft_dma, EFT_NUM_BUFFERS);
if (rval) {
ql_log(ql_log_warn, vha, 0x8034,
"Unable to reinitialize EFT "
"(%d).\n", rval);
}
}
} else { /* failed the ISP abort */
vha->flags.online = 1;
if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
if (ha->isp_abort_cnt == 0) {
ql_log(ql_log_fatal, vha, 0x8035,
"ISP error recover failed - "
"board disabled.\n");
/*
* The next call disables the board
* completely.
*/
qla2x00_abort_isp_cleanup(vha);
vha->flags.online = 0;
clear_bit(ISP_ABORT_RETRY,
&vha->dpc_flags);
status = 0;
} else { /* schedule another ISP abort */
ha->isp_abort_cnt--;
ql_dbg(ql_dbg_taskm, vha, 0x8020,
"ISP abort - retry remaining %d.\n",
ha->isp_abort_cnt);
status = 1;
}
} else {
ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
ql_dbg(ql_dbg_taskm, vha, 0x8021,
"ISP error recovery - retrying (%d) "
"more times.\n", ha->isp_abort_cnt);
set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
status = 1;
}
}
}
if (vha->hw->flags.port_isolated) {
qla2x00_abort_isp_cleanup(vha);
return status;
}
if (!status) {
ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
qla2x00_configure_hba(vha);
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
if (vp->vp_idx) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
qla2x00_vp_abort_isp(vp);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
if (IS_QLA8031(ha)) {
ql_dbg(ql_dbg_p3p, vha, 0xb05d,
"Setting back fcoe driver presence.\n");
if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
ql_dbg(ql_dbg_p3p, vha, 0xb074,
"Error while setting DRV-Presence.\n");
}
} else {
ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
__func__);
}
return(status);
}
/*
* qla2x00_restart_isp
* restarts the ISP after a reset
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
static int
qla2x00_restart_isp(scsi_qla_host_t *vha)
{
int status;
struct qla_hw_data *ha = vha->hw;
/* If firmware needs to be loaded */
if (qla2x00_isp_firmware(vha)) {
vha->flags.online = 0;
status = ha->isp_ops->chip_diag(vha);
if (status)
return status;
status = qla2x00_setup_chip(vha);
if (status)
return status;
}
status = qla2x00_init_rings(vha);
if (status)
return status;
clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
ha->flags.chip_reset_done = 1;
/* Initialize the queues in use */
qla25xx_init_queues(ha);
status = qla2x00_fw_ready(vha);
if (status) {
/* if no cable then assume it's good */
return vha->device_flags & DFLG_NO_CABLE ? 0 : status;
}
/* Issue a marker after FW becomes ready. */
qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
return 0;
}
static int
qla25xx_init_queues(struct qla_hw_data *ha)
{
struct rsp_que *rsp = NULL;
struct req_que *req = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
int ret = -1;
int i;
for (i = 1; i < ha->max_rsp_queues; i++) {
rsp = ha->rsp_q_map[i];
if (rsp && test_bit(i, ha->rsp_qid_map)) {
rsp->options &= ~BIT_0;
ret = qla25xx_init_rsp_que(base_vha, rsp);
if (ret != QLA_SUCCESS)
ql_dbg(ql_dbg_init, base_vha, 0x00ff,
"%s Rsp que: %d init failed.\n",
__func__, rsp->id);
else
ql_dbg(ql_dbg_init, base_vha, 0x0100,
"%s Rsp que: %d inited.\n",
__func__, rsp->id);
}
}
for (i = 1; i < ha->max_req_queues; i++) {
req = ha->req_q_map[i];
if (req && test_bit(i, ha->req_qid_map)) {
/* Clear outstanding commands array. */
req->options &= ~BIT_0;
ret = qla25xx_init_req_que(base_vha, req);
if (ret != QLA_SUCCESS)
ql_dbg(ql_dbg_init, base_vha, 0x0101,
"%s Req que: %d init failed.\n",
__func__, req->id);
else
ql_dbg(ql_dbg_init, base_vha, 0x0102,
"%s Req que: %d inited.\n",
__func__, req->id);
}
}
return ret;
}
/*
* qla2x00_reset_adapter
* Reset adapter.
*
* Input:
* ha = adapter block pointer.
*/
int
qla2x00_reset_adapter(scsi_qla_host_t *vha)
{
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
vha->flags.online = 0;
ha->isp_ops->disable_intrs(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
wrt_reg_word(®->hccr, HCCR_RESET_RISC);
rd_reg_word(®->hccr); /* PCI Posting. */
wrt_reg_word(®->hccr, HCCR_RELEASE_RISC);
rd_reg_word(®->hccr); /* PCI Posting. */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
}
int
qla24xx_reset_adapter(scsi_qla_host_t *vha)
{
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
if (IS_P3P_TYPE(ha))
return QLA_SUCCESS;
vha->flags.online = 0;
ha->isp_ops->disable_intrs(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
wrt_reg_dword(®->hccr, HCCRX_SET_RISC_RESET);
rd_reg_dword(®->hccr);
wrt_reg_dword(®->hccr, HCCRX_REL_RISC_PAUSE);
rd_reg_dword(®->hccr);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (IS_NOPOLLING_TYPE(ha))
ha->isp_ops->enable_intrs(ha);
return QLA_SUCCESS;
}
/* On sparc systems, obtain port and node WWN from firmware
* properties.
*/
static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
struct nvram_24xx *nv)
{
#ifdef CONFIG_SPARC
struct qla_hw_data *ha = vha->hw;
struct pci_dev *pdev = ha->pdev;
struct device_node *dp = pci_device_to_OF_node(pdev);
const u8 *val;
int len;
val = of_get_property(dp, "port-wwn", &len);
if (val && len >= WWN_SIZE)
memcpy(nv->port_name, val, WWN_SIZE);
val = of_get_property(dp, "node-wwn", &len);
if (val && len >= WWN_SIZE)
memcpy(nv->node_name, val, WWN_SIZE);
#endif
}
int
qla24xx_nvram_config(scsi_qla_host_t *vha)
{
int rval;
struct init_cb_24xx *icb;
struct nvram_24xx *nv;
__le32 *dptr;
uint8_t *dptr1, *dptr2;
uint32_t chksum;
uint16_t cnt;
struct qla_hw_data *ha = vha->hw;
rval = QLA_SUCCESS;
icb = (struct init_cb_24xx *)ha->init_cb;
nv = ha->nvram;
/* Determine NVRAM starting address. */
if (ha->port_no == 0) {
ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
ha->vpd_base = FA_NVRAM_VPD0_ADDR;
} else {
ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
ha->vpd_base = FA_NVRAM_VPD1_ADDR;
}
ha->nvram_size = sizeof(*nv);
ha->vpd_size = FA_NVRAM_VPD_SIZE;
/* Get VPD data into cache */
ha->vpd = ha->nvram + VPD_OFFSET;
ha->isp_ops->read_nvram(vha, ha->vpd,
ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
/* Get NVRAM data into cache and calculate checksum. */
dptr = (__force __le32 *)nv;
ha->isp_ops->read_nvram(vha, dptr, ha->nvram_base, ha->nvram_size);
for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
chksum += le32_to_cpu(*dptr);
ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
"Contents of NVRAM\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
nv, ha->nvram_size);
/* Bad NVRAM data, set defaults parameters. */
if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
/* Reset NVRAM data. */
ql_log(ql_log_warn, vha, 0x006b,
"Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
chksum, nv->id, nv->nvram_version);
ql_dump_buffer(ql_dbg_init, vha, 0x006b, nv, sizeof(*nv));
ql_log(ql_log_warn, vha, 0x006c,
"Falling back to functioning (yet invalid -- WWPN) "
"defaults.\n");
/*
* Set default initialization control block.
*/
memset(nv, 0, ha->nvram_size);
nv->nvram_version = cpu_to_le16(ICB_VERSION);
nv->version = cpu_to_le16(ICB_VERSION);
nv->frame_payload_size = cpu_to_le16(2048);
nv->execution_throttle = cpu_to_le16(0xFFFF);
nv->exchange_count = cpu_to_le16(0);
nv->hard_address = cpu_to_le16(124);
nv->port_name[0] = 0x21;
nv->port_name[1] = 0x00 + ha->port_no + 1;
nv->port_name[2] = 0x00;
nv->port_name[3] = 0xe0;
nv->port_name[4] = 0x8b;
nv->port_name[5] = 0x1c;
nv->port_name[6] = 0x55;
nv->port_name[7] = 0x86;
nv->node_name[0] = 0x20;
nv->node_name[1] = 0x00;
nv->node_name[2] = 0x00;
nv->node_name[3] = 0xe0;
nv->node_name[4] = 0x8b;
nv->node_name[5] = 0x1c;
nv->node_name[6] = 0x55;
nv->node_name[7] = 0x86;
qla24xx_nvram_wwn_from_ofw(vha, nv);
nv->login_retry_count = cpu_to_le16(8);
nv->interrupt_delay_timer = cpu_to_le16(0);
nv->login_timeout = cpu_to_le16(0);
nv->firmware_options_1 =
cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
nv->firmware_options_2 = cpu_to_le32(2 << 4);
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
nv->firmware_options_3 = cpu_to_le32(2 << 13);
nv->host_p = cpu_to_le32(BIT_11|BIT_10);
nv->efi_parameters = cpu_to_le32(0);
nv->reset_delay = 5;
nv->max_luns_per_target = cpu_to_le16(128);
nv->port_down_retry_count = cpu_to_le16(30);
nv->link_down_timeout = cpu_to_le16(30);
rval = 1;
}
if (qla_tgt_mode_enabled(vha)) {
/* Don't enable full login after initial LIP */
nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
/* Don't enable LIP full login for initiator */
nv->host_p &= cpu_to_le32(~BIT_10);
}
qlt_24xx_config_nvram_stage1(vha, nv);
/* Reset Initialization control block */
memset(icb, 0, ha->init_cb_size);
/* Copy 1st segment. */
dptr1 = (uint8_t *)icb;
dptr2 = (uint8_t *)&nv->version;
cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
while (cnt--)
*dptr1++ = *dptr2++;
icb->login_retry_count = nv->login_retry_count;
icb->link_down_on_nos = nv->link_down_on_nos;
/* Copy 2nd segment. */
dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
cnt = (uint8_t *)&icb->reserved_3 -
(uint8_t *)&icb->interrupt_delay_timer;
while (cnt--)
*dptr1++ = *dptr2++;
ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
/*
* Setup driver NVRAM options.
*/
qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
"QLA2462");
qlt_24xx_config_nvram_stage2(vha, icb);
if (nv->host_p & cpu_to_le32(BIT_15)) {
/* Use alternate WWN? */
memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
}
/* Prepare nodename */
if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
/*
* Firmware will apply the following mask if the nodename was
* not provided.
*/
memcpy(icb->node_name, icb->port_name, WWN_SIZE);
icb->node_name[0] &= 0xF0;
}
/* Set host adapter parameters. */
ha->flags.disable_risc_code_load = 0;
ha->flags.enable_lip_reset = 0;
ha->flags.enable_lip_full_login =
le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
ha->flags.enable_target_reset =
le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
ha->flags.enable_led_scheme = 0;
ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
(BIT_6 | BIT_5 | BIT_4)) >> 4;
memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
sizeof(ha->fw_seriallink_options24));
/* save HBA serial number */
ha->serial0 = icb->port_name[5];
ha->serial1 = icb->port_name[6];
ha->serial2 = icb->port_name[7];
memcpy(vha->node_name, icb->node_name, WWN_SIZE);
memcpy(vha->port_name, icb->port_name, WWN_SIZE);
icb->execution_throttle = cpu_to_le16(0xFFFF);
ha->retry_count = le16_to_cpu(nv->login_retry_count);
/* Set minimum login_timeout to 4 seconds. */
if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
if (le16_to_cpu(nv->login_timeout) < 4)
nv->login_timeout = cpu_to_le16(4);
ha->login_timeout = le16_to_cpu(nv->login_timeout);
/* Set minimum RATOV to 100 tenths of a second. */
ha->r_a_tov = 100;
ha->loop_reset_delay = nv->reset_delay;
/* Link Down Timeout = 0:
*
* When Port Down timer expires we will start returning
* I/O's to OS with "DID_NO_CONNECT".
*
* Link Down Timeout != 0:
*
* The driver waits for the link to come up after link down
* before returning I/Os to OS with "DID_NO_CONNECT".
*/
if (le16_to_cpu(nv->link_down_timeout) == 0) {
ha->loop_down_abort_time =
(LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
} else {
ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
ha->loop_down_abort_time =
(LOOP_DOWN_TIME - ha->link_down_timeout);
}
/* Need enough time to try and get the port back. */
ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
if (qlport_down_retry)
ha->port_down_retry_count = qlport_down_retry;
/* Set login_retry_count */
ha->login_retry_count = le16_to_cpu(nv->login_retry_count);
if (ha->port_down_retry_count ==
le16_to_cpu(nv->port_down_retry_count) &&
ha->port_down_retry_count > 3)
ha->login_retry_count = ha->port_down_retry_count;
else if (ha->port_down_retry_count > (int)ha->login_retry_count)
ha->login_retry_count = ha->port_down_retry_count;
if (ql2xloginretrycount)
ha->login_retry_count = ql2xloginretrycount;
/* N2N: driver will initiate Login instead of FW */
icb->firmware_options_3 |= cpu_to_le32(BIT_8);
/* Enable ZIO. */
if (!vha->flags.init_done) {
ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
(BIT_3 | BIT_2 | BIT_1 | BIT_0);
ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
le16_to_cpu(icb->interrupt_delay_timer) : 2;
}
icb->firmware_options_2 &= cpu_to_le32(
~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
if (ha->zio_mode != QLA_ZIO_DISABLED) {
ha->zio_mode = QLA_ZIO_MODE_6;
ql_log(ql_log_info, vha, 0x006f,
"ZIO mode %d enabled; timer delay (%d us).\n",
ha->zio_mode, ha->zio_timer * 100);
icb->firmware_options_2 |= cpu_to_le32(
(uint32_t)ha->zio_mode);
icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
}
if (rval) {
ql_log(ql_log_warn, vha, 0x0070,
"NVRAM configuration failed.\n");
}
return (rval);
}
static void
qla27xx_print_image(struct scsi_qla_host *vha, char *name,
struct qla27xx_image_status *image_status)
{
ql_dbg(ql_dbg_init, vha, 0x018b,
"%s %s: mask=%#02x gen=%#04x ver=%u.%u map=%#01x sum=%#08x sig=%#08x\n",
name, "status",
image_status->image_status_mask,
le16_to_cpu(image_status->generation),
image_status->ver_major,
image_status->ver_minor,
image_status->bitmap,
le32_to_cpu(image_status->checksum),
le32_to_cpu(image_status->signature));
}
static bool
qla28xx_check_aux_image_status_signature(
struct qla27xx_image_status *image_status)
{
ulong signature = le32_to_cpu(image_status->signature);
return signature != QLA28XX_AUX_IMG_STATUS_SIGN;
}
static bool
qla27xx_check_image_status_signature(struct qla27xx_image_status *image_status)
{
ulong signature = le32_to_cpu(image_status->signature);
return
signature != QLA27XX_IMG_STATUS_SIGN &&
signature != QLA28XX_IMG_STATUS_SIGN;
}
static ulong
qla27xx_image_status_checksum(struct qla27xx_image_status *image_status)
{
__le32 *p = (__force __le32 *)image_status;
uint n = sizeof(*image_status) / sizeof(*p);
uint32_t sum = 0;
for ( ; n--; p++)
sum += le32_to_cpup(p);
return sum;
}
static inline uint
qla28xx_component_bitmask(struct qla27xx_image_status *aux, uint bitmask)
{
return aux->bitmap & bitmask ?
QLA27XX_SECONDARY_IMAGE : QLA27XX_PRIMARY_IMAGE;
}
static void
qla28xx_component_status(
struct active_regions *active_regions, struct qla27xx_image_status *aux)
{
active_regions->aux.board_config =
qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_BOARD_CONFIG);
active_regions->aux.vpd_nvram =
qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_VPD_NVRAM);
active_regions->aux.npiv_config_0_1 =
qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_0_1);
active_regions->aux.npiv_config_2_3 =
qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_2_3);
active_regions->aux.nvme_params =
qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NVME_PARAMS);
}
static int
qla27xx_compare_image_generation(
struct qla27xx_image_status *pri_image_status,
struct qla27xx_image_status *sec_image_status)
{
/* calculate generation delta as uint16 (this accounts for wrap) */
int16_t delta =
le16_to_cpu(pri_image_status->generation) -
le16_to_cpu(sec_image_status->generation);
ql_dbg(ql_dbg_init, NULL, 0x0180, "generation delta = %d\n", delta);
return delta;
}
void
qla28xx_get_aux_images(
struct scsi_qla_host *vha, struct active_regions *active_regions)
{
struct qla_hw_data *ha = vha->hw;
struct qla27xx_image_status pri_aux_image_status, sec_aux_image_status;
bool valid_pri_image = false, valid_sec_image = false;
bool active_pri_image = false, active_sec_image = false;
if (!ha->flt_region_aux_img_status_pri) {
ql_dbg(ql_dbg_init, vha, 0x018a, "Primary aux image not addressed\n");
goto check_sec_image;
}
qla24xx_read_flash_data(vha, (uint32_t *)&pri_aux_image_status,
ha->flt_region_aux_img_status_pri,
sizeof(pri_aux_image_status) >> 2);
qla27xx_print_image(vha, "Primary aux image", &pri_aux_image_status);
if (qla28xx_check_aux_image_status_signature(&pri_aux_image_status)) {
ql_dbg(ql_dbg_init, vha, 0x018b,
"Primary aux image signature (%#x) not valid\n",
le32_to_cpu(pri_aux_image_status.signature));
goto check_sec_image;
}
if (qla27xx_image_status_checksum(&pri_aux_image_status)) {
ql_dbg(ql_dbg_init, vha, 0x018c,
"Primary aux image checksum failed\n");
goto check_sec_image;
}
valid_pri_image = true;
if (pri_aux_image_status.image_status_mask & 1) {
ql_dbg(ql_dbg_init, vha, 0x018d,
"Primary aux image is active\n");
active_pri_image = true;
}
check_sec_image:
if (!ha->flt_region_aux_img_status_sec) {
ql_dbg(ql_dbg_init, vha, 0x018a,
"Secondary aux image not addressed\n");
goto check_valid_image;
}
qla24xx_read_flash_data(vha, (uint32_t *)&sec_aux_image_status,
ha->flt_region_aux_img_status_sec,
sizeof(sec_aux_image_status) >> 2);
qla27xx_print_image(vha, "Secondary aux image", &sec_aux_image_status);
if (qla28xx_check_aux_image_status_signature(&sec_aux_image_status)) {
ql_dbg(ql_dbg_init, vha, 0x018b,
"Secondary aux image signature (%#x) not valid\n",
le32_to_cpu(sec_aux_image_status.signature));
goto check_valid_image;
}
if (qla27xx_image_status_checksum(&sec_aux_image_status)) {
ql_dbg(ql_dbg_init, vha, 0x018c,
"Secondary aux image checksum failed\n");
goto check_valid_image;
}
valid_sec_image = true;
if (sec_aux_image_status.image_status_mask & 1) {
ql_dbg(ql_dbg_init, vha, 0x018d,
"Secondary aux image is active\n");
active_sec_image = true;
}
check_valid_image:
if (valid_pri_image && active_pri_image &&
valid_sec_image && active_sec_image) {
if (qla27xx_compare_image_generation(&pri_aux_image_status,
&sec_aux_image_status) >= 0) {
qla28xx_component_status(active_regions,
&pri_aux_image_status);
} else {
qla28xx_component_status(active_regions,
&sec_aux_image_status);
}
} else if (valid_pri_image && active_pri_image) {
qla28xx_component_status(active_regions, &pri_aux_image_status);
} else if (valid_sec_image && active_sec_image) {
qla28xx_component_status(active_regions, &sec_aux_image_status);
}
ql_dbg(ql_dbg_init, vha, 0x018f,
"aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u, NVME=%u\n",
active_regions->aux.board_config,
active_regions->aux.vpd_nvram,
active_regions->aux.npiv_config_0_1,
active_regions->aux.npiv_config_2_3,
active_regions->aux.nvme_params);
}
void
qla27xx_get_active_image(struct scsi_qla_host *vha,
struct active_regions *active_regions)
{
struct qla_hw_data *ha = vha->hw;
struct qla27xx_image_status pri_image_status, sec_image_status;
bool valid_pri_image = false, valid_sec_image = false;
bool active_pri_image = false, active_sec_image = false;
if (!ha->flt_region_img_status_pri) {
ql_dbg(ql_dbg_init, vha, 0x018a, "Primary image not addressed\n");
goto check_sec_image;
}
if (qla24xx_read_flash_data(vha, (uint32_t *)&pri_image_status,
ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2) !=
QLA_SUCCESS) {
WARN_ON_ONCE(true);
goto check_sec_image;
}
qla27xx_print_image(vha, "Primary image", &pri_image_status);
if (qla27xx_check_image_status_signature(&pri_image_status)) {
ql_dbg(ql_dbg_init, vha, 0x018b,
"Primary image signature (%#x) not valid\n",
le32_to_cpu(pri_image_status.signature));
goto check_sec_image;
}
if (qla27xx_image_status_checksum(&pri_image_status)) {
ql_dbg(ql_dbg_init, vha, 0x018c,
"Primary image checksum failed\n");
goto check_sec_image;
}
valid_pri_image = true;
if (pri_image_status.image_status_mask & 1) {
ql_dbg(ql_dbg_init, vha, 0x018d,
"Primary image is active\n");
active_pri_image = true;
}
check_sec_image:
if (!ha->flt_region_img_status_sec) {
ql_dbg(ql_dbg_init, vha, 0x018a, "Secondary image not addressed\n");
goto check_valid_image;
}
qla24xx_read_flash_data(vha, (uint32_t *)(&sec_image_status),
ha->flt_region_img_status_sec, sizeof(sec_image_status) >> 2);
qla27xx_print_image(vha, "Secondary image", &sec_image_status);
if (qla27xx_check_image_status_signature(&sec_image_status)) {
ql_dbg(ql_dbg_init, vha, 0x018b,
"Secondary image signature (%#x) not valid\n",
le32_to_cpu(sec_image_status.signature));
goto check_valid_image;
}
if (qla27xx_image_status_checksum(&sec_image_status)) {
ql_dbg(ql_dbg_init, vha, 0x018c,
"Secondary image checksum failed\n");
goto check_valid_image;
}
valid_sec_image = true;
if (sec_image_status.image_status_mask & 1) {
ql_dbg(ql_dbg_init, vha, 0x018d,
"Secondary image is active\n");
active_sec_image = true;
}
check_valid_image:
if (valid_pri_image && active_pri_image)
active_regions->global = QLA27XX_PRIMARY_IMAGE;
if (valid_sec_image && active_sec_image) {
if (!active_regions->global ||
qla27xx_compare_image_generation(
&pri_image_status, &sec_image_status) < 0) {
active_regions->global = QLA27XX_SECONDARY_IMAGE;
}
}
ql_dbg(ql_dbg_init, vha, 0x018f, "active image %s (%u)\n",
active_regions->global == QLA27XX_DEFAULT_IMAGE ?
"default (boot/fw)" :
active_regions->global == QLA27XX_PRIMARY_IMAGE ?
"primary" :
active_regions->global == QLA27XX_SECONDARY_IMAGE ?
"secondary" : "invalid",
active_regions->global);
}
bool qla24xx_risc_firmware_invalid(uint32_t *dword)
{
return
!(dword[4] | dword[5] | dword[6] | dword[7]) ||
!(~dword[4] | ~dword[5] | ~dword[6] | ~dword[7]);
}
static int
qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
uint32_t faddr)
{
int rval;
uint templates, segments, fragment;
ulong i;
uint j;
ulong dlen;
uint32_t *dcode;
uint32_t risc_addr, risc_size, risc_attr = 0;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct fwdt *fwdt = ha->fwdt;
ql_dbg(ql_dbg_init, vha, 0x008b,
"FW: Loading firmware from flash (%x).\n", faddr);
dcode = (uint32_t *)req->ring;
qla24xx_read_flash_data(vha, dcode, faddr, 8);
if (qla24xx_risc_firmware_invalid(dcode)) {
ql_log(ql_log_fatal, vha, 0x008c,
"Unable to verify the integrity of flash firmware "
"image.\n");
ql_log(ql_log_fatal, vha, 0x008d,
"Firmware data: %08x %08x %08x %08x.\n",
dcode[0], dcode[1], dcode[2], dcode[3]);
return QLA_FUNCTION_FAILED;
}
dcode = (uint32_t *)req->ring;
*srisc_addr = 0;
segments = FA_RISC_CODE_SEGMENTS;
for (j = 0; j < segments; j++) {
ql_dbg(ql_dbg_init, vha, 0x008d,
"-> Loading segment %u...\n", j);
qla24xx_read_flash_data(vha, dcode, faddr, 10);
risc_addr = be32_to_cpu((__force __be32)dcode[2]);
risc_size = be32_to_cpu((__force __be32)dcode[3]);
if (!*srisc_addr) {
*srisc_addr = risc_addr;
risc_attr = be32_to_cpu((__force __be32)dcode[9]);
}
dlen = ha->fw_transfer_size >> 2;
for (fragment = 0; risc_size; fragment++) {
if (dlen > risc_size)
dlen = risc_size;
ql_dbg(ql_dbg_init, vha, 0x008e,
"-> Loading fragment %u: %#x <- %#x (%#lx dwords)...\n",
fragment, risc_addr, faddr, dlen);
qla24xx_read_flash_data(vha, dcode, faddr, dlen);
for (i = 0; i < dlen; i++)
dcode[i] = swab32(dcode[i]);
rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
if (rval) {
ql_log(ql_log_fatal, vha, 0x008f,
"-> Failed load firmware fragment %u.\n",
fragment);
return QLA_FUNCTION_FAILED;
}
faddr += dlen;
risc_addr += dlen;
risc_size -= dlen;
}
}
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return QLA_SUCCESS;
templates = (risc_attr & BIT_9) ? 2 : 1;
ql_dbg(ql_dbg_init, vha, 0x0160, "-> templates = %u\n", templates);
for (j = 0; j < templates; j++, fwdt++) {
vfree(fwdt->template);
fwdt->template = NULL;
fwdt->length = 0;
dcode = (uint32_t *)req->ring;
qla24xx_read_flash_data(vha, dcode, faddr, 7);
risc_size = be32_to_cpu((__force __be32)dcode[2]);
ql_dbg(ql_dbg_init, vha, 0x0161,
"-> fwdt%u template array at %#x (%#x dwords)\n",
j, faddr, risc_size);
if (!risc_size || !~risc_size) {
ql_dbg(ql_dbg_init, vha, 0x0162,
"-> fwdt%u failed to read array\n", j);
goto failed;
}
/* skip header and ignore checksum */
faddr += 7;
risc_size -= 8;
ql_dbg(ql_dbg_init, vha, 0x0163,
"-> fwdt%u template allocate template %#x words...\n",
j, risc_size);
fwdt->template = vmalloc_array(risc_size, sizeof(*dcode));
if (!fwdt->template) {
ql_log(ql_log_warn, vha, 0x0164,
"-> fwdt%u failed allocate template.\n", j);
goto failed;
}
dcode = fwdt->template;
qla24xx_read_flash_data(vha, dcode, faddr, risc_size);
if (!qla27xx_fwdt_template_valid(dcode)) {
ql_log(ql_log_warn, vha, 0x0165,
"-> fwdt%u failed template validate\n", j);
goto failed;
}
dlen = qla27xx_fwdt_template_size(dcode);
ql_dbg(ql_dbg_init, vha, 0x0166,
"-> fwdt%u template size %#lx bytes (%#lx words)\n",
j, dlen, dlen / sizeof(*dcode));
if (dlen > risc_size * sizeof(*dcode)) {
ql_log(ql_log_warn, vha, 0x0167,
"-> fwdt%u template exceeds array (%-lu bytes)\n",
j, dlen - risc_size * sizeof(*dcode));
goto failed;
}
fwdt->length = dlen;
ql_dbg(ql_dbg_init, vha, 0x0168,
"-> fwdt%u loaded template ok\n", j);
faddr += risc_size + 1;
}
return QLA_SUCCESS;
failed:
vfree(fwdt->template);
fwdt->template = NULL;
fwdt->length = 0;
return QLA_SUCCESS;
}
#define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
int
qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
{
int rval;
int i, fragment;
uint16_t *wcode;
__be16 *fwcode;
uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
struct fw_blob *blob;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
/* Load firmware blob. */
blob = qla2x00_request_firmware(vha);
if (!blob) {
ql_log(ql_log_info, vha, 0x0083,
"Firmware image unavailable.\n");
ql_log(ql_log_info, vha, 0x0084,
"Firmware images can be retrieved from: "QLA_FW_URL ".\n");
return QLA_FUNCTION_FAILED;
}
rval = QLA_SUCCESS;
wcode = (uint16_t *)req->ring;
*srisc_addr = 0;
fwcode = (__force __be16 *)blob->fw->data;
fwclen = 0;
/* Validate firmware image by checking version. */
if (blob->fw->size < 8 * sizeof(uint16_t)) {
ql_log(ql_log_fatal, vha, 0x0085,
"Unable to verify integrity of firmware image (%zd).\n",
blob->fw->size);
goto fail_fw_integrity;
}
for (i = 0; i < 4; i++)
wcode[i] = be16_to_cpu(fwcode[i + 4]);
if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
wcode[2] == 0 && wcode[3] == 0)) {
ql_log(ql_log_fatal, vha, 0x0086,
"Unable to verify integrity of firmware image.\n");
ql_log(ql_log_fatal, vha, 0x0087,
"Firmware data: %04x %04x %04x %04x.\n",
wcode[0], wcode[1], wcode[2], wcode[3]);
goto fail_fw_integrity;
}
seg = blob->segs;
while (*seg && rval == QLA_SUCCESS) {
risc_addr = *seg;
*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
risc_size = be16_to_cpu(fwcode[3]);
/* Validate firmware image size. */
fwclen += risc_size * sizeof(uint16_t);
if (blob->fw->size < fwclen) {
ql_log(ql_log_fatal, vha, 0x0088,
"Unable to verify integrity of firmware image "
"(%zd).\n", blob->fw->size);
goto fail_fw_integrity;
}
fragment = 0;
while (risc_size > 0 && rval == QLA_SUCCESS) {
wlen = (uint16_t)(ha->fw_transfer_size >> 1);
if (wlen > risc_size)
wlen = risc_size;
ql_dbg(ql_dbg_init, vha, 0x0089,
"Loading risc segment@ risc addr %x number of "
"words 0x%x.\n", risc_addr, wlen);
for (i = 0; i < wlen; i++)
wcode[i] = swab16((__force u32)fwcode[i]);
rval = qla2x00_load_ram(vha, req->dma, risc_addr,
wlen);
if (rval) {
ql_log(ql_log_fatal, vha, 0x008a,
"Failed to load segment %d of firmware.\n",
fragment);
break;
}
fwcode += wlen;
risc_addr += wlen;
risc_size -= wlen;
fragment++;
}
/* Next segment. */
seg++;
}
return rval;
fail_fw_integrity:
return QLA_FUNCTION_FAILED;
}
static int
qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
{
int rval;
uint templates, segments, fragment;
uint32_t *dcode;
ulong dlen;
uint32_t risc_addr, risc_size, risc_attr = 0;
ulong i;
uint j;
struct fw_blob *blob;
__be32 *fwcode;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct fwdt *fwdt = ha->fwdt;
ql_dbg(ql_dbg_init, vha, 0x0090,
"-> FW: Loading via request-firmware.\n");
blob = qla2x00_request_firmware(vha);
if (!blob) {
ql_log(ql_log_warn, vha, 0x0092,
"-> Firmware file not found.\n");
return QLA_FUNCTION_FAILED;
}
fwcode = (__force __be32 *)blob->fw->data;
dcode = (__force uint32_t *)fwcode;
if (qla24xx_risc_firmware_invalid(dcode)) {
ql_log(ql_log_fatal, vha, 0x0093,
"Unable to verify integrity of firmware image (%zd).\n",
blob->fw->size);
ql_log(ql_log_fatal, vha, 0x0095,
"Firmware data: %08x %08x %08x %08x.\n",
dcode[0], dcode[1], dcode[2], dcode[3]);
return QLA_FUNCTION_FAILED;
}
dcode = (uint32_t *)req->ring;
*srisc_addr = 0;
segments = FA_RISC_CODE_SEGMENTS;
for (j = 0; j < segments; j++) {
ql_dbg(ql_dbg_init, vha, 0x0096,
"-> Loading segment %u...\n", j);
risc_addr = be32_to_cpu(fwcode[2]);
risc_size = be32_to_cpu(fwcode[3]);
if (!*srisc_addr) {
*srisc_addr = risc_addr;
risc_attr = be32_to_cpu(fwcode[9]);
}
dlen = ha->fw_transfer_size >> 2;
for (fragment = 0; risc_size; fragment++) {
if (dlen > risc_size)
dlen = risc_size;
ql_dbg(ql_dbg_init, vha, 0x0097,
"-> Loading fragment %u: %#x <- %#x (%#lx words)...\n",
fragment, risc_addr,
(uint32_t)(fwcode - (typeof(fwcode))blob->fw->data),
dlen);
for (i = 0; i < dlen; i++)
dcode[i] = swab32((__force u32)fwcode[i]);
rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
if (rval) {
ql_log(ql_log_fatal, vha, 0x0098,
"-> Failed load firmware fragment %u.\n",
fragment);
return QLA_FUNCTION_FAILED;
}
fwcode += dlen;
risc_addr += dlen;
risc_size -= dlen;
}
}
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return QLA_SUCCESS;
templates = (risc_attr & BIT_9) ? 2 : 1;
ql_dbg(ql_dbg_init, vha, 0x0170, "-> templates = %u\n", templates);
for (j = 0; j < templates; j++, fwdt++) {
vfree(fwdt->template);
fwdt->template = NULL;
fwdt->length = 0;
risc_size = be32_to_cpu(fwcode[2]);
ql_dbg(ql_dbg_init, vha, 0x0171,
"-> fwdt%u template array at %#x (%#x dwords)\n",
j, (uint32_t)((void *)fwcode - (void *)blob->fw->data),
risc_size);
if (!risc_size || !~risc_size) {
ql_dbg(ql_dbg_init, vha, 0x0172,
"-> fwdt%u failed to read array\n", j);
goto failed;
}
/* skip header and ignore checksum */
fwcode += 7;
risc_size -= 8;
ql_dbg(ql_dbg_init, vha, 0x0173,
"-> fwdt%u template allocate template %#x words...\n",
j, risc_size);
fwdt->template = vmalloc_array(risc_size, sizeof(*dcode));
if (!fwdt->template) {
ql_log(ql_log_warn, vha, 0x0174,
"-> fwdt%u failed allocate template.\n", j);
goto failed;
}
dcode = fwdt->template;
for (i = 0; i < risc_size; i++)
dcode[i] = (__force u32)fwcode[i];
if (!qla27xx_fwdt_template_valid(dcode)) {
ql_log(ql_log_warn, vha, 0x0175,
"-> fwdt%u failed template validate\n", j);
goto failed;
}
dlen = qla27xx_fwdt_template_size(dcode);
ql_dbg(ql_dbg_init, vha, 0x0176,
"-> fwdt%u template size %#lx bytes (%#lx words)\n",
j, dlen, dlen / sizeof(*dcode));
if (dlen > risc_size * sizeof(*dcode)) {
ql_log(ql_log_warn, vha, 0x0177,
"-> fwdt%u template exceeds array (%-lu bytes)\n",
j, dlen - risc_size * sizeof(*dcode));
goto failed;
}
fwdt->length = dlen;
ql_dbg(ql_dbg_init, vha, 0x0178,
"-> fwdt%u loaded template ok\n", j);
fwcode += risc_size + 1;
}
return QLA_SUCCESS;
failed:
vfree(fwdt->template);
fwdt->template = NULL;
fwdt->length = 0;
return QLA_SUCCESS;
}
int
qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
{
int rval;
if (ql2xfwloadbin == 1)
return qla81xx_load_risc(vha, srisc_addr);
/*
* FW Load priority:
* 1) Firmware via request-firmware interface (.bin file).
* 2) Firmware residing in flash.
*/
rval = qla24xx_load_risc_blob(vha, srisc_addr);
if (rval == QLA_SUCCESS)
return rval;
return qla24xx_load_risc_flash(vha, srisc_addr,
vha->hw->flt_region_fw);
}
int
qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
{
int rval;
struct qla_hw_data *ha = vha->hw;
struct active_regions active_regions = { };
if (ql2xfwloadbin == 2)
goto try_blob_fw;
/* FW Load priority:
* 1) Firmware residing in flash.
* 2) Firmware via request-firmware interface (.bin file).
* 3) Golden-Firmware residing in flash -- (limited operation).
*/
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
goto try_primary_fw;
qla27xx_get_active_image(vha, &active_regions);
if (active_regions.global != QLA27XX_SECONDARY_IMAGE)
goto try_primary_fw;
ql_dbg(ql_dbg_init, vha, 0x008b,
"Loading secondary firmware image.\n");
rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw_sec);
if (!rval)
return rval;
try_primary_fw:
ql_dbg(ql_dbg_init, vha, 0x008b,
"Loading primary firmware image.\n");
rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
if (!rval)
return rval;
try_blob_fw:
rval = qla24xx_load_risc_blob(vha, srisc_addr);
if (!rval || !ha->flt_region_gold_fw)
return rval;
ql_log(ql_log_info, vha, 0x0099,
"Attempting to fallback to golden firmware.\n");
rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
if (rval)
return rval;
ql_log(ql_log_info, vha, 0x009a, "Need firmware flash update.\n");
ha->flags.running_gold_fw = 1;
return rval;
}
void
qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
{
int ret, retries;
struct qla_hw_data *ha = vha->hw;
if (ha->flags.pci_channel_io_perm_failure)
return;
if (!IS_FWI2_CAPABLE(ha))
return;
if (!ha->fw_major_version)
return;
if (!ha->flags.fw_started)
return;
ret = qla2x00_stop_firmware(vha);
for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
ret != QLA_INVALID_COMMAND && retries ; retries--) {
ha->isp_ops->reset_chip(vha);
if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
continue;
if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
continue;
ql_log(ql_log_info, vha, 0x8015,
"Attempting retry of stop-firmware command.\n");
ret = qla2x00_stop_firmware(vha);
}
QLA_FW_STOPPED(ha);
ha->flags.fw_init_done = 0;
}
int
qla24xx_configure_vhba(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
int rval2;
uint16_t mb[MAILBOX_REGISTER_COUNT];
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
if (!vha->vp_idx)
return -EINVAL;
rval = qla2x00_fw_ready(base_vha);
if (rval == QLA_SUCCESS) {
clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
}
vha->flags.management_server_logged_in = 0;
/* Login to SNS first */
rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
BIT_1);
if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
if (rval2 == QLA_MEMORY_ALLOC_FAILED)
ql_dbg(ql_dbg_init, vha, 0x0120,
"Failed SNS login: loop_id=%x, rval2=%d\n",
NPH_SNS, rval2);
else
ql_dbg(ql_dbg_init, vha, 0x0103,
"Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
"mb[2]=%x mb[6]=%x mb[7]=%x.\n",
NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
return (QLA_FUNCTION_FAILED);
}
atomic_set(&vha->loop_down_timer, 0);
atomic_set(&vha->loop_state, LOOP_UP);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
rval = qla2x00_loop_resync(base_vha);
return rval;
}
/* 84XX Support **************************************************************/
static LIST_HEAD(qla_cs84xx_list);
static DEFINE_MUTEX(qla_cs84xx_mutex);
static struct qla_chip_state_84xx *
qla84xx_get_chip(struct scsi_qla_host *vha)
{
struct qla_chip_state_84xx *cs84xx;
struct qla_hw_data *ha = vha->hw;
mutex_lock(&qla_cs84xx_mutex);
/* Find any shared 84xx chip. */
list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
if (cs84xx->bus == ha->pdev->bus) {
kref_get(&cs84xx->kref);
goto done;
}
}
cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
if (!cs84xx)
goto done;
kref_init(&cs84xx->kref);
spin_lock_init(&cs84xx->access_lock);
mutex_init(&cs84xx->fw_update_mutex);
cs84xx->bus = ha->pdev->bus;
list_add_tail(&cs84xx->list, &qla_cs84xx_list);
done:
mutex_unlock(&qla_cs84xx_mutex);
return cs84xx;
}
static void
__qla84xx_chip_release(struct kref *kref)
{
struct qla_chip_state_84xx *cs84xx =
container_of(kref, struct qla_chip_state_84xx, kref);
mutex_lock(&qla_cs84xx_mutex);
list_del(&cs84xx->list);
mutex_unlock(&qla_cs84xx_mutex);
kfree(cs84xx);
}
void
qla84xx_put_chip(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
if (ha->cs84xx)
kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
}
static int
qla84xx_init_chip(scsi_qla_host_t *vha)
{
int rval;
uint16_t status[2];
struct qla_hw_data *ha = vha->hw;
mutex_lock(&ha->cs84xx->fw_update_mutex);
rval = qla84xx_verify_chip(vha, status);
mutex_unlock(&ha->cs84xx->fw_update_mutex);
return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED :
QLA_SUCCESS;
}
/* 81XX Support **************************************************************/
int
qla81xx_nvram_config(scsi_qla_host_t *vha)
{
int rval;
struct init_cb_81xx *icb;
struct nvram_81xx *nv;
__le32 *dptr;
uint8_t *dptr1, *dptr2;
uint32_t chksum;
uint16_t cnt;
struct qla_hw_data *ha = vha->hw;
uint32_t faddr;
struct active_regions active_regions = { };
rval = QLA_SUCCESS;
icb = (struct init_cb_81xx *)ha->init_cb;
nv = ha->nvram;
/* Determine NVRAM starting address. */
ha->nvram_size = sizeof(*nv);
ha->vpd_size = FA_NVRAM_VPD_SIZE;
if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
ha->vpd_size = FA_VPD_SIZE_82XX;
if (IS_QLA28XX(ha) || IS_QLA27XX(ha))
qla28xx_get_aux_images(vha, &active_regions);
/* Get VPD data into cache */
ha->vpd = ha->nvram + VPD_OFFSET;
faddr = ha->flt_region_vpd;
if (IS_QLA28XX(ha)) {
if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
faddr = ha->flt_region_vpd_sec;
ql_dbg(ql_dbg_init, vha, 0x0110,
"Loading %s nvram image.\n",
active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
"primary" : "secondary");
}
ha->isp_ops->read_optrom(vha, ha->vpd, faddr << 2, ha->vpd_size);
/* Get NVRAM data into cache and calculate checksum. */
faddr = ha->flt_region_nvram;
if (IS_QLA28XX(ha)) {
if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
faddr = ha->flt_region_nvram_sec;
}
ql_dbg(ql_dbg_init, vha, 0x0110,
"Loading %s nvram image.\n",
active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
"primary" : "secondary");
ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
dptr = (__force __le32 *)nv;
for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
chksum += le32_to_cpu(*dptr);
ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
"Contents of NVRAM:\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
nv, ha->nvram_size);
/* Bad NVRAM data, set defaults parameters. */
if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
/* Reset NVRAM data. */
ql_log(ql_log_info, vha, 0x0073,
"Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
chksum, nv->id, le16_to_cpu(nv->nvram_version));
ql_dump_buffer(ql_dbg_init, vha, 0x0073, nv, sizeof(*nv));
ql_log(ql_log_info, vha, 0x0074,
"Falling back to functioning (yet invalid -- WWPN) "
"defaults.\n");
/*
* Set default initialization control block.
*/
memset(nv, 0, ha->nvram_size);
nv->nvram_version = cpu_to_le16(ICB_VERSION);
nv->version = cpu_to_le16(ICB_VERSION);
nv->frame_payload_size = cpu_to_le16(2048);
nv->execution_throttle = cpu_to_le16(0xFFFF);
nv->exchange_count = cpu_to_le16(0);
nv->port_name[0] = 0x21;
nv->port_name[1] = 0x00 + ha->port_no + 1;
nv->port_name[2] = 0x00;
nv->port_name[3] = 0xe0;
nv->port_name[4] = 0x8b;
nv->port_name[5] = 0x1c;
nv->port_name[6] = 0x55;
nv->port_name[7] = 0x86;
nv->node_name[0] = 0x20;
nv->node_name[1] = 0x00;
nv->node_name[2] = 0x00;
nv->node_name[3] = 0xe0;
nv->node_name[4] = 0x8b;
nv->node_name[5] = 0x1c;
nv->node_name[6] = 0x55;
nv->node_name[7] = 0x86;
nv->login_retry_count = cpu_to_le16(8);
nv->interrupt_delay_timer = cpu_to_le16(0);
nv->login_timeout = cpu_to_le16(0);
nv->firmware_options_1 =
cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
nv->firmware_options_2 = cpu_to_le32(2 << 4);
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
nv->firmware_options_3 = cpu_to_le32(2 << 13);
nv->host_p = cpu_to_le32(BIT_11|BIT_10);
nv->efi_parameters = cpu_to_le32(0);
nv->reset_delay = 5;
nv->max_luns_per_target = cpu_to_le16(128);
nv->port_down_retry_count = cpu_to_le16(30);
nv->link_down_timeout = cpu_to_le16(180);
nv->enode_mac[0] = 0x00;
nv->enode_mac[1] = 0xC0;
nv->enode_mac[2] = 0xDD;
nv->enode_mac[3] = 0x04;
nv->enode_mac[4] = 0x05;
nv->enode_mac[5] = 0x06 + ha->port_no + 1;
rval = 1;
}
if (IS_T10_PI_CAPABLE(ha))
nv->frame_payload_size &= cpu_to_le16(~7);
qlt_81xx_config_nvram_stage1(vha, nv);
/* Reset Initialization control block */
memset(icb, 0, ha->init_cb_size);
/* Copy 1st segment. */
dptr1 = (uint8_t *)icb;
dptr2 = (uint8_t *)&nv->version;
cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
while (cnt--)
*dptr1++ = *dptr2++;
icb->login_retry_count = nv->login_retry_count;
/* Copy 2nd segment. */
dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
cnt = (uint8_t *)&icb->reserved_5 -
(uint8_t *)&icb->interrupt_delay_timer;
while (cnt--)
*dptr1++ = *dptr2++;
memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
icb->enode_mac[0] = 0x00;
icb->enode_mac[1] = 0xC0;
icb->enode_mac[2] = 0xDD;
icb->enode_mac[3] = 0x04;
icb->enode_mac[4] = 0x05;
icb->enode_mac[5] = 0x06 + ha->port_no + 1;
}
/* Use extended-initialization control block. */
memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
/*
* Setup driver NVRAM options.
*/
qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
"QLE8XXX");
qlt_81xx_config_nvram_stage2(vha, icb);
/* Use alternate WWN? */
if (nv->host_p & cpu_to_le32(BIT_15)) {
memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
}
/* Prepare nodename */
if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
/*
* Firmware will apply the following mask if the nodename was
* not provided.
*/
memcpy(icb->node_name, icb->port_name, WWN_SIZE);
icb->node_name[0] &= 0xF0;
}
if (IS_QLA28XX(ha) || IS_QLA27XX(ha)) {
if ((nv->enhanced_features & BIT_7) == 0)
ha->flags.scm_supported_a = 1;
}
/* Set host adapter parameters. */
ha->flags.disable_risc_code_load = 0;
ha->flags.enable_lip_reset = 0;
ha->flags.enable_lip_full_login =
le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
ha->flags.enable_target_reset =
le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
ha->flags.enable_led_scheme = 0;
ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
(BIT_6 | BIT_5 | BIT_4)) >> 4;
/* save HBA serial number */
ha->serial0 = icb->port_name[5];
ha->serial1 = icb->port_name[6];
ha->serial2 = icb->port_name[7];
memcpy(vha->node_name, icb->node_name, WWN_SIZE);
memcpy(vha->port_name, icb->port_name, WWN_SIZE);
icb->execution_throttle = cpu_to_le16(0xFFFF);
ha->retry_count = le16_to_cpu(nv->login_retry_count);
/* Set minimum login_timeout to 4 seconds. */
if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
if (le16_to_cpu(nv->login_timeout) < 4)
nv->login_timeout = cpu_to_le16(4);
ha->login_timeout = le16_to_cpu(nv->login_timeout);
/* Set minimum RATOV to 100 tenths of a second. */
ha->r_a_tov = 100;
ha->loop_reset_delay = nv->reset_delay;
/* Link Down Timeout = 0:
*
* When Port Down timer expires we will start returning
* I/O's to OS with "DID_NO_CONNECT".
*
* Link Down Timeout != 0:
*
* The driver waits for the link to come up after link down
* before returning I/Os to OS with "DID_NO_CONNECT".
*/
if (le16_to_cpu(nv->link_down_timeout) == 0) {
ha->loop_down_abort_time =
(LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
} else {
ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
ha->loop_down_abort_time =
(LOOP_DOWN_TIME - ha->link_down_timeout);
}
/* Need enough time to try and get the port back. */
ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
if (qlport_down_retry)
ha->port_down_retry_count = qlport_down_retry;
/* Set login_retry_count */
ha->login_retry_count = le16_to_cpu(nv->login_retry_count);
if (ha->port_down_retry_count ==
le16_to_cpu(nv->port_down_retry_count) &&
ha->port_down_retry_count > 3)
ha->login_retry_count = ha->port_down_retry_count;
else if (ha->port_down_retry_count > (int)ha->login_retry_count)
ha->login_retry_count = ha->port_down_retry_count;
if (ql2xloginretrycount)
ha->login_retry_count = ql2xloginretrycount;
/* if not running MSI-X we need handshaking on interrupts */
if (!vha->hw->flags.msix_enabled &&
(IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)))
icb->firmware_options_2 |= cpu_to_le32(BIT_22);
/* Enable ZIO. */
if (!vha->flags.init_done) {
ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
(BIT_3 | BIT_2 | BIT_1 | BIT_0);
ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
le16_to_cpu(icb->interrupt_delay_timer) : 2;
}
icb->firmware_options_2 &= cpu_to_le32(
~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
vha->flags.process_response_queue = 0;
if (ha->zio_mode != QLA_ZIO_DISABLED) {
ha->zio_mode = QLA_ZIO_MODE_6;
ql_log(ql_log_info, vha, 0x0075,
"ZIO mode %d enabled; timer delay (%d us).\n",
ha->zio_mode,
ha->zio_timer * 100);
icb->firmware_options_2 |= cpu_to_le32(
(uint32_t)ha->zio_mode);
icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
vha->flags.process_response_queue = 1;
}
/* enable RIDA Format2 */
icb->firmware_options_3 |= cpu_to_le32(BIT_0);
/* N2N: driver will initiate Login instead of FW */
icb->firmware_options_3 |= cpu_to_le32(BIT_8);
/* Determine NVMe/FCP priority for target ports */
ha->fc4_type_priority = qla2xxx_get_fc4_priority(vha);
if (rval) {
ql_log(ql_log_warn, vha, 0x0076,
"NVRAM configuration failed.\n");
}
return (rval);
}
int
qla82xx_restart_isp(scsi_qla_host_t *vha)
{
int status, rval;
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *vp, *tvp;
unsigned long flags;
status = qla2x00_init_rings(vha);
if (!status) {
clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
ha->flags.chip_reset_done = 1;
status = qla2x00_fw_ready(vha);
if (!status) {
/* Issue a marker after FW becomes ready. */
qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
vha->flags.online = 1;
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
}
/* if no cable then assume it's good */
if ((vha->device_flags & DFLG_NO_CABLE))
status = 0;
}
if (!status) {
clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
if (!atomic_read(&vha->loop_down_timer)) {
/*
* Issue marker command only when we are going
* to start the I/O .
*/
vha->marker_needed = 1;
}
ha->isp_ops->enable_intrs(ha);
ha->isp_abort_cnt = 0;
clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
/* Update the firmware version */
status = qla82xx_check_md_needed(vha);
if (ha->fce) {
ha->flags.fce_enabled = 1;
memset(ha->fce, 0,
fce_calc_size(ha->fce_bufs));
rval = qla2x00_enable_fce_trace(vha,
ha->fce_dma, ha->fce_bufs, ha->fce_mb,
&ha->fce_bufs);
if (rval) {
ql_log(ql_log_warn, vha, 0x8001,
"Unable to reinitialize FCE (%d).\n",
rval);
ha->flags.fce_enabled = 0;
}
}
if (ha->eft) {
memset(ha->eft, 0, EFT_SIZE);
rval = qla2x00_enable_eft_trace(vha,
ha->eft_dma, EFT_NUM_BUFFERS);
if (rval) {
ql_log(ql_log_warn, vha, 0x8010,
"Unable to reinitialize EFT (%d).\n",
rval);
}
}
}
if (!status) {
ql_dbg(ql_dbg_taskm, vha, 0x8011,
"qla82xx_restart_isp succeeded.\n");
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
if (vp->vp_idx) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
qla2x00_vp_abort_isp(vp);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
} else {
ql_log(ql_log_warn, vha, 0x8016,
"qla82xx_restart_isp **** FAILED ****.\n");
}
return status;
}
/*
* qla24xx_get_fcp_prio
* Gets the fcp cmd priority value for the logged in port.
* Looks for a match of the port descriptors within
* each of the fcp prio config entries. If a match is found,
* the tag (priority) value is returned.
*
* Input:
* vha = scsi host structure pointer.
* fcport = port structure pointer.
*
* Return:
* non-zero (if found)
* -1 (if not found)
*
* Context:
* Kernel context
*/
static int
qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
{
int i, entries;
uint8_t pid_match, wwn_match;
int priority;
uint32_t pid1, pid2;
uint64_t wwn1, wwn2;
struct qla_fcp_prio_entry *pri_entry;
struct qla_hw_data *ha = vha->hw;
if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
return -1;
priority = -1;
entries = ha->fcp_prio_cfg->num_entries;
pri_entry = &ha->fcp_prio_cfg->entry[0];
for (i = 0; i < entries; i++) {
pid_match = wwn_match = 0;
if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
pri_entry++;
continue;
}
/* check source pid for a match */
if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
pid1 = pri_entry->src_pid & INVALID_PORT_ID;
pid2 = vha->d_id.b24 & INVALID_PORT_ID;
if (pid1 == INVALID_PORT_ID)
pid_match++;
else if (pid1 == pid2)
pid_match++;
}
/* check destination pid for a match */
if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
if (pid1 == INVALID_PORT_ID)
pid_match++;
else if (pid1 == pid2)
pid_match++;
}
/* check source WWN for a match */
if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
wwn1 = wwn_to_u64(vha->port_name);
wwn2 = wwn_to_u64(pri_entry->src_wwpn);
if (wwn2 == (uint64_t)-1)
wwn_match++;
else if (wwn1 == wwn2)
wwn_match++;
}
/* check destination WWN for a match */
if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
wwn1 = wwn_to_u64(fcport->port_name);
wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
if (wwn2 == (uint64_t)-1)
wwn_match++;
else if (wwn1 == wwn2)
wwn_match++;
}
if (pid_match == 2 || wwn_match == 2) {
/* Found a matching entry */
if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
priority = pri_entry->tag;
break;
}
pri_entry++;
}
return priority;
}
/*
* qla24xx_update_fcport_fcp_prio
* Activates fcp priority for the logged in fc port
*
* Input:
* vha = scsi host structure pointer.
* fcp = port structure pointer.
*
* Return:
* QLA_SUCCESS or QLA_FUNCTION_FAILED
*
* Context:
* Kernel context.
*/
int
qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
{
int ret;
int priority;
uint16_t mb[5];
if (fcport->port_type != FCT_TARGET ||
fcport->loop_id == FC_NO_LOOP_ID)
return QLA_FUNCTION_FAILED;
priority = qla24xx_get_fcp_prio(vha, fcport);
if (priority < 0)
return QLA_FUNCTION_FAILED;
if (IS_P3P_TYPE(vha->hw)) {
fcport->fcp_prio = priority & 0xf;
return QLA_SUCCESS;
}
ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
if (ret == QLA_SUCCESS) {
if (fcport->fcp_prio != priority)
ql_dbg(ql_dbg_user, vha, 0x709e,
"Updated FCP_CMND priority - value=%d loop_id=%d "
"port_id=%02x%02x%02x.\n", priority,
fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
fcport->fcp_prio = priority & 0xf;
} else
ql_dbg(ql_dbg_user, vha, 0x704f,
"Unable to update FCP_CMND priority - ret=0x%x for "
"loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa);
return ret;
}
/*
* qla24xx_update_all_fcp_prio
* Activates fcp priority for all the logged in ports
*
* Input:
* ha = adapter block pointer.
*
* Return:
* QLA_SUCCESS or QLA_FUNCTION_FAILED
*
* Context:
* Kernel context.
*/
int
qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
{
int ret;
fc_port_t *fcport;
ret = QLA_FUNCTION_FAILED;
/* We need to set priority for all logged in ports */
list_for_each_entry(fcport, &vha->vp_fcports, list)
ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
return ret;
}
struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
int vp_idx, bool startqp)
{
int rsp_id = 0;
int req_id = 0;
int i;
struct qla_hw_data *ha = vha->hw;
uint16_t qpair_id = 0;
struct qla_qpair *qpair = NULL;
struct qla_msix_entry *msix;
if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
ql_log(ql_log_warn, vha, 0x00181,
"FW/Driver is not multi-queue capable.\n");
return NULL;
}
if (ql2xmqsupport || ql2xnvmeenable) {
qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
if (qpair == NULL) {
ql_log(ql_log_warn, vha, 0x0182,
"Failed to allocate memory for queue pair.\n");
return NULL;
}
qpair->hw = vha->hw;
qpair->vha = vha;
qpair->qp_lock_ptr = &qpair->qp_lock;
spin_lock_init(&qpair->qp_lock);
qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
/* Assign available que pair id */
mutex_lock(&ha->mq_lock);
qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
if (ha->num_qpairs >= ha->max_qpairs) {
mutex_unlock(&ha->mq_lock);
ql_log(ql_log_warn, vha, 0x0183,
"No resources to create additional q pair.\n");
goto fail_qid_map;
}
ha->num_qpairs++;
set_bit(qpair_id, ha->qpair_qid_map);
ha->queue_pair_map[qpair_id] = qpair;
qpair->id = qpair_id;
qpair->vp_idx = vp_idx;
qpair->fw_started = ha->flags.fw_started;
INIT_LIST_HEAD(&qpair->hints_list);
INIT_LIST_HEAD(&qpair->dsd_list);
qpair->chip_reset = ha->base_qpair->chip_reset;
qpair->enable_class_2 = ha->base_qpair->enable_class_2;
qpair->enable_explicit_conf =
ha->base_qpair->enable_explicit_conf;
for (i = 0; i < ha->msix_count; i++) {
msix = &ha->msix_entries[i];
if (msix->in_use)
continue;
qpair->msix = msix;
ql_dbg(ql_dbg_multiq, vha, 0xc00f,
"Vector %x selected for qpair\n", msix->vector);
break;
}
if (!qpair->msix) {
ql_log(ql_log_warn, vha, 0x0184,
"Out of MSI-X vectors!.\n");
goto fail_msix;
}
qpair->msix->in_use = 1;
list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
qpair->pdev = ha->pdev;
if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
mutex_unlock(&ha->mq_lock);
/* Create response queue first */
rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair, startqp);
if (!rsp_id) {
ql_log(ql_log_warn, vha, 0x0185,
"Failed to create response queue.\n");
goto fail_rsp;
}
qpair->rsp = ha->rsp_q_map[rsp_id];
/* Create request queue */
req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos,
startqp);
if (!req_id) {
ql_log(ql_log_warn, vha, 0x0186,
"Failed to create request queue.\n");
goto fail_req;
}
qpair->req = ha->req_q_map[req_id];
qpair->rsp->req = qpair->req;
qpair->rsp->qpair = qpair;
if (!qpair->cpu_mapped)
qla_cpu_update(qpair, raw_smp_processor_id());
if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
if (ha->fw_attributes & BIT_4)
qpair->difdix_supported = 1;
}
qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
if (!qpair->srb_mempool) {
ql_log(ql_log_warn, vha, 0xd036,
"Failed to create srb mempool for qpair %d\n",
qpair->id);
goto fail_mempool;
}
if (qla_create_buf_pool(vha, qpair)) {
ql_log(ql_log_warn, vha, 0xd036,
"Failed to initialize buf pool for qpair %d\n",
qpair->id);
goto fail_bufpool;
}
/* Mark as online */
qpair->online = 1;
if (!vha->flags.qpairs_available)
vha->flags.qpairs_available = 1;
ql_dbg(ql_dbg_multiq, vha, 0xc00d,
"Request/Response queue pair created, id %d\n",
qpair->id);
ql_dbg(ql_dbg_init, vha, 0x0187,
"Request/Response queue pair created, id %d\n",
qpair->id);
}
return qpair;
fail_bufpool:
mempool_destroy(qpair->srb_mempool);
fail_mempool:
qla25xx_delete_req_que(vha, qpair->req);
fail_req:
qla25xx_delete_rsp_que(vha, qpair->rsp);
fail_rsp:
mutex_lock(&ha->mq_lock);
qpair->msix->in_use = 0;
list_del(&qpair->qp_list_elem);
if (list_empty(&vha->qp_list))
vha->flags.qpairs_available = 0;
fail_msix:
ha->queue_pair_map[qpair_id] = NULL;
clear_bit(qpair_id, ha->qpair_qid_map);
ha->num_qpairs--;
mutex_unlock(&ha->mq_lock);
fail_qid_map:
kfree(qpair);
return NULL;
}
int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
{
int ret = QLA_FUNCTION_FAILED;
struct qla_hw_data *ha = qpair->hw;
qpair->delete_in_progress = 1;
qla_free_buf_pool(qpair);
ret = qla25xx_delete_req_que(vha, qpair->req);
if (ret != QLA_SUCCESS)
goto fail;
ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
if (ret != QLA_SUCCESS)
goto fail;
if (!list_empty(&qpair->dsd_list)) {
struct dsd_dma *dsd_ptr, *tdsd_ptr;
/* clean up allocated prev pool */
list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
&qpair->dsd_list, list) {
dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
dsd_ptr->dsd_list_dma);
list_del(&dsd_ptr->list);
kfree(dsd_ptr);
}
}
mutex_lock(&ha->mq_lock);
ha->queue_pair_map[qpair->id] = NULL;
clear_bit(qpair->id, ha->qpair_qid_map);
ha->num_qpairs--;
list_del(&qpair->qp_list_elem);
if (list_empty(&vha->qp_list)) {
vha->flags.qpairs_available = 0;
vha->flags.qpairs_req_created = 0;
vha->flags.qpairs_rsp_created = 0;
}
mempool_destroy(qpair->srb_mempool);
kfree(qpair);
mutex_unlock(&ha->mq_lock);
return QLA_SUCCESS;
fail:
return ret;
}
uint64_t
qla2x00_count_set_bits(uint32_t num)
{
/* Brian Kernighan's Algorithm */
u64 count = 0;
while (num) {
num &= (num - 1);
count++;
}
return count;
}
uint64_t
qla2x00_get_num_tgts(scsi_qla_host_t *vha)
{
fc_port_t *f, *tf;
u64 count = 0;
f = NULL;
tf = NULL;
list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
if (f->port_type != FCT_TARGET)
continue;
count++;
}
return count;
}
int qla2xxx_reset_stats(struct Scsi_Host *host, u32 flags)
{
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport = NULL;
unsigned long int_flags;
if (flags & QLA2XX_HW_ERROR)
vha->hw_err_cnt = 0;
if (flags & QLA2XX_SHT_LNK_DWN)
vha->short_link_down_cnt = 0;
if (flags & QLA2XX_INT_ERR)
vha->interface_err_cnt = 0;
if (flags & QLA2XX_CMD_TIMEOUT)
vha->cmd_timeout_cnt = 0;
if (flags & QLA2XX_RESET_CMD_ERR)
vha->reset_cmd_err_cnt = 0;
if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
fcport->tgt_short_link_down_cnt = 0;
fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
}
vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
return 0;
}
int qla2xxx_start_stats(struct Scsi_Host *host, u32 flags)
{
return qla2xxx_reset_stats(host, flags);
}
int qla2xxx_stop_stats(struct Scsi_Host *host, u32 flags)
{
return qla2xxx_reset_stats(host, flags);
}
int qla2xxx_get_ini_stats(struct Scsi_Host *host, u32 flags,
void *data, u64 size)
{
scsi_qla_host_t *vha = shost_priv(host);
struct ql_vnd_host_stats_resp *resp = (struct ql_vnd_host_stats_resp *)data;
struct ql_vnd_stats *rsp_data = &resp->stats;
u64 ini_entry_count = 0;
u64 i = 0;
u64 entry_count = 0;
u64 num_tgt = 0;
u32 tmp_stat_type = 0;
fc_port_t *fcport = NULL;
unsigned long int_flags;
/* Copy stat type to work on it */
tmp_stat_type = flags;
if (tmp_stat_type & BIT_17) {
num_tgt = qla2x00_get_num_tgts(vha);
/* unset BIT_17 */
tmp_stat_type &= ~(1 << 17);
}
ini_entry_count = qla2x00_count_set_bits(tmp_stat_type);
entry_count = ini_entry_count + num_tgt;
rsp_data->entry_count = entry_count;
i = 0;
if (flags & QLA2XX_HW_ERROR) {
rsp_data->entry[i].stat_type = QLA2XX_HW_ERROR;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->hw_err_cnt;
i++;
}
if (flags & QLA2XX_SHT_LNK_DWN) {
rsp_data->entry[i].stat_type = QLA2XX_SHT_LNK_DWN;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->short_link_down_cnt;
i++;
}
if (flags & QLA2XX_INT_ERR) {
rsp_data->entry[i].stat_type = QLA2XX_INT_ERR;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->interface_err_cnt;
i++;
}
if (flags & QLA2XX_CMD_TIMEOUT) {
rsp_data->entry[i].stat_type = QLA2XX_CMD_TIMEOUT;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->cmd_timeout_cnt;
i++;
}
if (flags & QLA2XX_RESET_CMD_ERR) {
rsp_data->entry[i].stat_type = QLA2XX_RESET_CMD_ERR;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->reset_cmd_err_cnt;
i++;
}
/* i will continue from previous loop, as target
* entries are after initiator
*/
if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->port_type != FCT_TARGET)
continue;
if (!fcport->rport)
continue;
rsp_data->entry[i].stat_type = QLA2XX_TGT_SHT_LNK_DOWN;
rsp_data->entry[i].tgt_num = fcport->rport->number;
rsp_data->entry[i].cnt = fcport->tgt_short_link_down_cnt;
i++;
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
}
resp->status = EXT_STATUS_OK;
return 0;
}
int qla2xxx_get_tgt_stats(struct Scsi_Host *host, u32 flags,
struct fc_rport *rport, void *data, u64 size)
{
struct ql_vnd_tgt_stats_resp *tgt_data = data;
fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
tgt_data->status = 0;
tgt_data->stats.entry_count = 1;
tgt_data->stats.entry[0].stat_type = flags;
tgt_data->stats.entry[0].tgt_num = rport->number;
tgt_data->stats.entry[0].cnt = fcport->tgt_short_link_down_cnt;
return 0;
}
int qla2xxx_disable_port(struct Scsi_Host *host)
{
scsi_qla_host_t *vha = shost_priv(host);
vha->hw->flags.port_isolated = 1;
if (qla2x00_isp_reg_stat(vha->hw)) {
ql_log(ql_log_info, vha, 0x9006,
"PCI/Register disconnect, exiting.\n");
qla_pci_set_eeh_busy(vha);
return FAILED;
}
if (qla2x00_chip_is_down(vha))
return 0;
if (vha->flags.online) {
qla2x00_abort_isp_cleanup(vha);
qla2x00_wait_for_sess_deletion(vha);
}
return 0;
}
int qla2xxx_enable_port(struct Scsi_Host *host)
{
scsi_qla_host_t *vha = shost_priv(host);
if (qla2x00_isp_reg_stat(vha->hw)) {
ql_log(ql_log_info, vha, 0x9001,
"PCI/Register disconnect, exiting.\n");
qla_pci_set_eeh_busy(vha);
return FAILED;
}
vha->hw->flags.port_isolated = 0;
/* Set the flag to 1, so that isp_abort can proceed */
vha->flags.online = 1;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
return 0;
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_init.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_target.h"
#include <linux/utsname.h>
static int qla2x00_sns_ga_nxt(scsi_qla_host_t *, fc_port_t *);
static int qla2x00_sns_gid_pt(scsi_qla_host_t *, sw_info_t *);
static int qla2x00_sns_gpn_id(scsi_qla_host_t *, sw_info_t *);
static int qla2x00_sns_gnn_id(scsi_qla_host_t *, sw_info_t *);
static int qla2x00_sns_rft_id(scsi_qla_host_t *);
static int qla2x00_sns_rnn_id(scsi_qla_host_t *);
static int qla_async_rftid(scsi_qla_host_t *, port_id_t *);
static int qla_async_rffid(scsi_qla_host_t *, port_id_t *, u8, u8);
static int qla_async_rnnid(scsi_qla_host_t *, port_id_t *, u8*);
static int qla_async_rsnn_nn(scsi_qla_host_t *);
/**
* qla2x00_prep_ms_iocb() - Prepare common MS/CT IOCB fields for SNS CT query.
* @vha: HA context
* @arg: CT arguments
*
* Returns a pointer to the @vha's ms_iocb.
*/
void *
qla2x00_prep_ms_iocb(scsi_qla_host_t *vha, struct ct_arg *arg)
{
struct qla_hw_data *ha = vha->hw;
ms_iocb_entry_t *ms_pkt;
ms_pkt = (ms_iocb_entry_t *)arg->iocb;
memset(ms_pkt, 0, sizeof(ms_iocb_entry_t));
ms_pkt->entry_type = MS_IOCB_TYPE;
ms_pkt->entry_count = 1;
SET_TARGET_ID(ha, ms_pkt->loop_id, SIMPLE_NAME_SERVER);
ms_pkt->control_flags = cpu_to_le16(CF_READ | CF_HEAD_TAG);
ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
ms_pkt->cmd_dsd_count = cpu_to_le16(1);
ms_pkt->total_dsd_count = cpu_to_le16(2);
ms_pkt->rsp_bytecount = cpu_to_le32(arg->rsp_size);
ms_pkt->req_bytecount = cpu_to_le32(arg->req_size);
put_unaligned_le64(arg->req_dma, &ms_pkt->req_dsd.address);
ms_pkt->req_dsd.length = ms_pkt->req_bytecount;
put_unaligned_le64(arg->rsp_dma, &ms_pkt->rsp_dsd.address);
ms_pkt->rsp_dsd.length = ms_pkt->rsp_bytecount;
vha->qla_stats.control_requests++;
return (ms_pkt);
}
/**
* qla24xx_prep_ms_iocb() - Prepare common CT IOCB fields for SNS CT query.
* @vha: HA context
* @arg: CT arguments
*
* Returns a pointer to the @ha's ms_iocb.
*/
void *
qla24xx_prep_ms_iocb(scsi_qla_host_t *vha, struct ct_arg *arg)
{
struct qla_hw_data *ha = vha->hw;
struct ct_entry_24xx *ct_pkt;
ct_pkt = (struct ct_entry_24xx *)arg->iocb;
memset(ct_pkt, 0, sizeof(struct ct_entry_24xx));
ct_pkt->entry_type = CT_IOCB_TYPE;
ct_pkt->entry_count = 1;
ct_pkt->nport_handle = cpu_to_le16(arg->nport_handle);
ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
ct_pkt->cmd_dsd_count = cpu_to_le16(1);
ct_pkt->rsp_dsd_count = cpu_to_le16(1);
ct_pkt->rsp_byte_count = cpu_to_le32(arg->rsp_size);
ct_pkt->cmd_byte_count = cpu_to_le32(arg->req_size);
put_unaligned_le64(arg->req_dma, &ct_pkt->dsd[0].address);
ct_pkt->dsd[0].length = ct_pkt->cmd_byte_count;
put_unaligned_le64(arg->rsp_dma, &ct_pkt->dsd[1].address);
ct_pkt->dsd[1].length = ct_pkt->rsp_byte_count;
ct_pkt->vp_index = vha->vp_idx;
vha->qla_stats.control_requests++;
return (ct_pkt);
}
/**
* qla2x00_prep_ct_req() - Prepare common CT request fields for SNS query.
* @p: CT request buffer
* @cmd: GS command
* @rsp_size: response size in bytes
*
* Returns a pointer to the intitialized @ct_req.
*/
static inline struct ct_sns_req *
qla2x00_prep_ct_req(struct ct_sns_pkt *p, uint16_t cmd, uint16_t rsp_size)
{
memset(p, 0, sizeof(struct ct_sns_pkt));
p->p.req.header.revision = 0x01;
p->p.req.header.gs_type = 0xFC;
p->p.req.header.gs_subtype = 0x02;
p->p.req.command = cpu_to_be16(cmd);
p->p.req.max_rsp_size = cpu_to_be16((rsp_size - 16) / 4);
return &p->p.req;
}
int
qla2x00_chk_ms_status(scsi_qla_host_t *vha, ms_iocb_entry_t *ms_pkt,
struct ct_sns_rsp *ct_rsp, const char *routine)
{
int rval;
uint16_t comp_status;
struct qla_hw_data *ha = vha->hw;
bool lid_is_sns = false;
rval = QLA_FUNCTION_FAILED;
if (ms_pkt->entry_status != 0) {
ql_dbg(ql_dbg_disc, vha, 0x2031,
"%s failed, error status (%x) on port_id: %02x%02x%02x.\n",
routine, ms_pkt->entry_status, vha->d_id.b.domain,
vha->d_id.b.area, vha->d_id.b.al_pa);
} else {
if (IS_FWI2_CAPABLE(ha))
comp_status = le16_to_cpu(
((struct ct_entry_24xx *)ms_pkt)->comp_status);
else
comp_status = le16_to_cpu(ms_pkt->status);
switch (comp_status) {
case CS_COMPLETE:
case CS_DATA_UNDERRUN:
case CS_DATA_OVERRUN: /* Overrun? */
if (ct_rsp->header.response !=
cpu_to_be16(CT_ACCEPT_RESPONSE)) {
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x2077,
"%s failed rejected request on port_id: %02x%02x%02x Completion status 0x%x, response 0x%x\n",
routine, vha->d_id.b.domain,
vha->d_id.b.area, vha->d_id.b.al_pa,
comp_status, ct_rsp->header.response);
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha,
0x2078, ct_rsp,
offsetof(typeof(*ct_rsp), rsp));
rval = QLA_INVALID_COMMAND;
} else
rval = QLA_SUCCESS;
break;
case CS_PORT_LOGGED_OUT:
if (IS_FWI2_CAPABLE(ha)) {
if (le16_to_cpu(ms_pkt->loop_id.extended) ==
NPH_SNS)
lid_is_sns = true;
} else {
if (le16_to_cpu(ms_pkt->loop_id.extended) ==
SIMPLE_NAME_SERVER)
lid_is_sns = true;
}
if (lid_is_sns) {
ql_dbg(ql_dbg_async, vha, 0x502b,
"%s failed, Name server has logged out",
routine);
rval = QLA_NOT_LOGGED_IN;
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
}
break;
case CS_TIMEOUT:
rval = QLA_FUNCTION_TIMEOUT;
fallthrough;
default:
ql_dbg(ql_dbg_disc, vha, 0x2033,
"%s failed, completion status (%x) on port_id: "
"%02x%02x%02x.\n", routine, comp_status,
vha->d_id.b.domain, vha->d_id.b.area,
vha->d_id.b.al_pa);
break;
}
}
return rval;
}
/**
* qla2x00_ga_nxt() - SNS scan for fabric devices via GA_NXT command.
* @vha: HA context
* @fcport: fcport entry to updated
*
* Returns 0 on success.
*/
int
qla2x00_ga_nxt(scsi_qla_host_t *vha, fc_port_t *fcport)
{
int rval;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
struct qla_hw_data *ha = vha->hw;
struct ct_arg arg;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return qla2x00_sns_ga_nxt(vha, fcport);
arg.iocb = ha->ms_iocb;
arg.req_dma = ha->ct_sns_dma;
arg.rsp_dma = ha->ct_sns_dma;
arg.req_size = GA_NXT_REQ_SIZE;
arg.rsp_size = GA_NXT_RSP_SIZE;
arg.nport_handle = NPH_SNS;
/* Issue GA_NXT */
/* Prepare common MS IOCB */
ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ha->ct_sns, GA_NXT_CMD,
GA_NXT_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_id */
ct_req->req.port_id.port_id = port_id_to_be_id(fcport->d_id);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2062,
"GA_NXT issue IOCB failed (%d).\n", rval);
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "GA_NXT") !=
QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
} else {
/* Populate fc_port_t entry. */
fcport->d_id = be_to_port_id(ct_rsp->rsp.ga_nxt.port_id);
memcpy(fcport->node_name, ct_rsp->rsp.ga_nxt.node_name,
WWN_SIZE);
memcpy(fcport->port_name, ct_rsp->rsp.ga_nxt.port_name,
WWN_SIZE);
fcport->fc4_type = (ct_rsp->rsp.ga_nxt.fc4_types[2] & BIT_0) ?
FS_FC4TYPE_FCP : FC4_TYPE_OTHER;
if (ct_rsp->rsp.ga_nxt.port_type != NS_N_PORT_TYPE &&
ct_rsp->rsp.ga_nxt.port_type != NS_NL_PORT_TYPE)
fcport->d_id.b.domain = 0xf0;
ql_dbg(ql_dbg_disc, vha, 0x2063,
"GA_NXT entry - nn %8phN pn %8phN "
"port_id=%02x%02x%02x.\n",
fcport->node_name, fcport->port_name,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa);
}
return (rval);
}
static inline int
qla2x00_gid_pt_rsp_size(scsi_qla_host_t *vha)
{
return vha->hw->max_fibre_devices * 4 + 16;
}
/**
* qla2x00_gid_pt() - SNS scan for fabric devices via GID_PT command.
* @vha: HA context
* @list: switch info entries to populate
*
* NOTE: Non-Nx_Ports are not requested.
*
* Returns 0 on success.
*/
int
qla2x00_gid_pt(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval;
uint16_t i;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
struct ct_sns_gid_pt_data *gid_data;
struct qla_hw_data *ha = vha->hw;
uint16_t gid_pt_rsp_size;
struct ct_arg arg;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return qla2x00_sns_gid_pt(vha, list);
gid_data = NULL;
gid_pt_rsp_size = qla2x00_gid_pt_rsp_size(vha);
arg.iocb = ha->ms_iocb;
arg.req_dma = ha->ct_sns_dma;
arg.rsp_dma = ha->ct_sns_dma;
arg.req_size = GID_PT_REQ_SIZE;
arg.rsp_size = gid_pt_rsp_size;
arg.nport_handle = NPH_SNS;
/* Issue GID_PT */
/* Prepare common MS IOCB */
ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ha->ct_sns, GID_PT_CMD, gid_pt_rsp_size);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_type */
ct_req->req.gid_pt.port_type = NS_NX_PORT_TYPE;
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2055,
"GID_PT issue IOCB failed (%d).\n", rval);
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "GID_PT") !=
QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
} else {
/* Set port IDs in switch info list. */
for (i = 0; i < ha->max_fibre_devices; i++) {
gid_data = &ct_rsp->rsp.gid_pt.entries[i];
list[i].d_id = be_to_port_id(gid_data->port_id);
memset(list[i].fabric_port_name, 0, WWN_SIZE);
list[i].fp_speed = PORT_SPEED_UNKNOWN;
/* Last one exit. */
if (gid_data->control_byte & BIT_7) {
list[i].d_id.b.rsvd_1 = gid_data->control_byte;
break;
}
}
/*
* If we've used all available slots, then the switch is
* reporting back more devices than we can handle with this
* single call. Return a failed status, and let GA_NXT handle
* the overload.
*/
if (i == ha->max_fibre_devices)
rval = QLA_FUNCTION_FAILED;
}
return (rval);
}
/**
* qla2x00_gpn_id() - SNS Get Port Name (GPN_ID) query.
* @vha: HA context
* @list: switch info entries to populate
*
* Returns 0 on success.
*/
int
qla2x00_gpn_id(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval = QLA_SUCCESS;
uint16_t i;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
struct qla_hw_data *ha = vha->hw;
struct ct_arg arg;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return qla2x00_sns_gpn_id(vha, list);
arg.iocb = ha->ms_iocb;
arg.req_dma = ha->ct_sns_dma;
arg.rsp_dma = ha->ct_sns_dma;
arg.req_size = GPN_ID_REQ_SIZE;
arg.rsp_size = GPN_ID_RSP_SIZE;
arg.nport_handle = NPH_SNS;
for (i = 0; i < ha->max_fibre_devices; i++) {
/* Issue GPN_ID */
/* Prepare common MS IOCB */
ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ha->ct_sns, GPN_ID_CMD,
GPN_ID_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_id */
ct_req->req.port_id.port_id = port_id_to_be_id(list[i].d_id);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2056,
"GPN_ID issue IOCB failed (%d).\n", rval);
break;
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp,
"GPN_ID") != QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
break;
} else {
/* Save portname */
memcpy(list[i].port_name,
ct_rsp->rsp.gpn_id.port_name, WWN_SIZE);
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
return (rval);
}
/**
* qla2x00_gnn_id() - SNS Get Node Name (GNN_ID) query.
* @vha: HA context
* @list: switch info entries to populate
*
* Returns 0 on success.
*/
int
qla2x00_gnn_id(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval = QLA_SUCCESS;
uint16_t i;
struct qla_hw_data *ha = vha->hw;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
struct ct_arg arg;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return qla2x00_sns_gnn_id(vha, list);
arg.iocb = ha->ms_iocb;
arg.req_dma = ha->ct_sns_dma;
arg.rsp_dma = ha->ct_sns_dma;
arg.req_size = GNN_ID_REQ_SIZE;
arg.rsp_size = GNN_ID_RSP_SIZE;
arg.nport_handle = NPH_SNS;
for (i = 0; i < ha->max_fibre_devices; i++) {
/* Issue GNN_ID */
/* Prepare common MS IOCB */
ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ha->ct_sns, GNN_ID_CMD,
GNN_ID_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_id */
ct_req->req.port_id.port_id = port_id_to_be_id(list[i].d_id);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2057,
"GNN_ID issue IOCB failed (%d).\n", rval);
break;
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp,
"GNN_ID") != QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
break;
} else {
/* Save nodename */
memcpy(list[i].node_name,
ct_rsp->rsp.gnn_id.node_name, WWN_SIZE);
ql_dbg(ql_dbg_disc, vha, 0x2058,
"GID_PT entry - nn %8phN pn %8phN "
"portid=%02x%02x%02x.\n",
list[i].node_name, list[i].port_name,
list[i].d_id.b.domain, list[i].d_id.b.area,
list[i].d_id.b.al_pa);
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
return (rval);
}
static void qla2x00_async_sns_sp_done(srb_t *sp, int rc)
{
struct scsi_qla_host *vha = sp->vha;
struct ct_sns_pkt *ct_sns;
struct qla_work_evt *e;
sp->rc = rc;
if (rc == QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x204f,
"Async done-%s exiting normally.\n",
sp->name);
} else if (rc == QLA_FUNCTION_TIMEOUT) {
ql_dbg(ql_dbg_disc, vha, 0x204f,
"Async done-%s timeout\n", sp->name);
} else {
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
memset(ct_sns, 0, sizeof(*ct_sns));
sp->retry_count++;
if (sp->retry_count > 3)
goto err;
ql_dbg(ql_dbg_disc, vha, 0x204f,
"Async done-%s fail rc %x. Retry count %d\n",
sp->name, rc, sp->retry_count);
e = qla2x00_alloc_work(vha, QLA_EVT_SP_RETRY);
if (!e)
goto err2;
e->u.iosb.sp = sp;
qla2x00_post_work(vha, e);
return;
}
err:
e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
err2:
if (!e) {
/* please ignore kernel warning. otherwise, we have mem leak. */
if (sp->u.iocb_cmd.u.ctarg.req) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.req_allocated_size,
sp->u.iocb_cmd.u.ctarg.req,
sp->u.iocb_cmd.u.ctarg.req_dma);
sp->u.iocb_cmd.u.ctarg.req = NULL;
}
if (sp->u.iocb_cmd.u.ctarg.rsp) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
sp->u.iocb_cmd.u.ctarg.rsp,
sp->u.iocb_cmd.u.ctarg.rsp_dma);
sp->u.iocb_cmd.u.ctarg.rsp = NULL;
}
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return;
}
e->u.iosb.sp = sp;
qla2x00_post_work(vha, e);
}
/**
* qla2x00_rft_id() - SNS Register FC-4 TYPEs (RFT_ID) supported by the HBA.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2x00_rft_id(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return qla2x00_sns_rft_id(vha);
return qla_async_rftid(vha, &vha->d_id);
}
static int qla_async_rftid(scsi_qla_host_t *vha, port_id_t *d_id)
{
int rval = QLA_MEMORY_ALLOC_FAILED;
struct ct_sns_req *ct_req;
srb_t *sp;
struct ct_sns_pkt *ct_sns;
if (!vha->flags.online)
goto done;
/* ref: INIT */
sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "rft_id";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_sns_sp_done);
sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.req_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.req) {
ql_log(ql_log_warn, vha, 0xd041,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.rsp_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.rsp) {
ql_log(ql_log_warn, vha, 0xd042,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
memset(ct_sns, 0, sizeof(*ct_sns));
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ct_sns, RFT_ID_CMD, RFT_ID_RSP_SIZE);
/* Prepare CT arguments -- port_id, FC-4 types */
ct_req->req.rft_id.port_id = port_id_to_be_id(vha->d_id);
ct_req->req.rft_id.fc4_types[2] = 0x01; /* FCP-3 */
if (vha->flags.nvme_enabled && qla_ini_mode_enabled(vha))
ct_req->req.rft_id.fc4_types[6] = 1; /* NVMe type 28h */
sp->u.iocb_cmd.u.ctarg.req_size = RFT_ID_REQ_SIZE;
sp->u.iocb_cmd.u.ctarg.rsp_size = RFT_ID_RSP_SIZE;
sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async-%s - hdl=%x portid %06x.\n",
sp->name, sp->handle, d_id->b24);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x2043,
"RFT_ID issue IOCB failed (%d).\n", rval);
goto done_free_sp;
}
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
/**
* qla2x00_rff_id() - SNS Register FC-4 Features (RFF_ID) supported by the HBA.
* @vha: HA context
* @type: not used
*
* Returns 0 on success.
*/
int
qla2x00_rff_id(scsi_qla_host_t *vha, u8 type)
{
struct qla_hw_data *ha = vha->hw;
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
ql_dbg(ql_dbg_disc, vha, 0x2046,
"RFF_ID call not supported on ISP2100/ISP2200.\n");
return (QLA_SUCCESS);
}
return qla_async_rffid(vha, &vha->d_id, qlt_rff_id(vha), type);
}
static int qla_async_rffid(scsi_qla_host_t *vha, port_id_t *d_id,
u8 fc4feature, u8 fc4type)
{
int rval = QLA_MEMORY_ALLOC_FAILED;
struct ct_sns_req *ct_req;
srb_t *sp;
struct ct_sns_pkt *ct_sns;
/* ref: INIT */
sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "rff_id";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_sns_sp_done);
sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.req_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.req) {
ql_log(ql_log_warn, vha, 0xd041,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.rsp_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.rsp) {
ql_log(ql_log_warn, vha, 0xd042,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
memset(ct_sns, 0, sizeof(*ct_sns));
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ct_sns, RFF_ID_CMD, RFF_ID_RSP_SIZE);
/* Prepare CT arguments -- port_id, FC-4 feature, FC-4 type */
ct_req->req.rff_id.port_id = port_id_to_be_id(*d_id);
ct_req->req.rff_id.fc4_feature = fc4feature;
ct_req->req.rff_id.fc4_type = fc4type; /* SCSI-FCP or FC-NVMe */
sp->u.iocb_cmd.u.ctarg.req_size = RFF_ID_REQ_SIZE;
sp->u.iocb_cmd.u.ctarg.rsp_size = RFF_ID_RSP_SIZE;
sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async-%s - hdl=%x portid %06x feature %x type %x.\n",
sp->name, sp->handle, d_id->b24, fc4feature, fc4type);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x2047,
"RFF_ID issue IOCB failed (%d).\n", rval);
goto done_free_sp;
}
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
/**
* qla2x00_rnn_id() - SNS Register Node Name (RNN_ID) of the HBA.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2x00_rnn_id(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return qla2x00_sns_rnn_id(vha);
return qla_async_rnnid(vha, &vha->d_id, vha->node_name);
}
static int qla_async_rnnid(scsi_qla_host_t *vha, port_id_t *d_id,
u8 *node_name)
{
int rval = QLA_MEMORY_ALLOC_FAILED;
struct ct_sns_req *ct_req;
srb_t *sp;
struct ct_sns_pkt *ct_sns;
/* ref: INIT */
sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "rnid";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_sns_sp_done);
sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.req_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.req) {
ql_log(ql_log_warn, vha, 0xd041,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.rsp_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.rsp) {
ql_log(ql_log_warn, vha, 0xd042,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
memset(ct_sns, 0, sizeof(*ct_sns));
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ct_sns, RNN_ID_CMD, RNN_ID_RSP_SIZE);
/* Prepare CT arguments -- port_id, node_name */
ct_req->req.rnn_id.port_id = port_id_to_be_id(vha->d_id);
memcpy(ct_req->req.rnn_id.node_name, vha->node_name, WWN_SIZE);
sp->u.iocb_cmd.u.ctarg.req_size = RNN_ID_REQ_SIZE;
sp->u.iocb_cmd.u.ctarg.rsp_size = RNN_ID_RSP_SIZE;
sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async-%s - hdl=%x portid %06x\n",
sp->name, sp->handle, d_id->b24);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x204d,
"RNN_ID issue IOCB failed (%d).\n", rval);
goto done_free_sp;
}
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
size_t
qla2x00_get_sym_node_name(scsi_qla_host_t *vha, uint8_t *snn, size_t size)
{
struct qla_hw_data *ha = vha->hw;
if (IS_QLAFX00(ha))
return scnprintf(snn, size, "%s FW:v%s DVR:v%s",
ha->model_number, ha->mr.fw_version, qla2x00_version_str);
return scnprintf(snn, size, "%s FW:v%d.%02d.%02d DVR:v%s",
ha->model_number, ha->fw_major_version, ha->fw_minor_version,
ha->fw_subminor_version, qla2x00_version_str);
}
/**
* qla2x00_rsnn_nn() - SNS Register Symbolic Node Name (RSNN_NN) of the HBA.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2x00_rsnn_nn(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
ql_dbg(ql_dbg_disc, vha, 0x2050,
"RSNN_ID call unsupported on ISP2100/ISP2200.\n");
return (QLA_SUCCESS);
}
return qla_async_rsnn_nn(vha);
}
static int qla_async_rsnn_nn(scsi_qla_host_t *vha)
{
int rval = QLA_MEMORY_ALLOC_FAILED;
struct ct_sns_req *ct_req;
srb_t *sp;
struct ct_sns_pkt *ct_sns;
/* ref: INIT */
sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "rsnn_nn";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_sns_sp_done);
sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.req_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.req) {
ql_log(ql_log_warn, vha, 0xd041,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.rsp_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.rsp) {
ql_log(ql_log_warn, vha, 0xd042,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
memset(ct_sns, 0, sizeof(*ct_sns));
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ct_sns, RSNN_NN_CMD, RSNN_NN_RSP_SIZE);
/* Prepare CT arguments -- node_name, symbolic node_name, size */
memcpy(ct_req->req.rsnn_nn.node_name, vha->node_name, WWN_SIZE);
/* Prepare the Symbolic Node Name */
qla2x00_get_sym_node_name(vha, ct_req->req.rsnn_nn.sym_node_name,
sizeof(ct_req->req.rsnn_nn.sym_node_name));
ct_req->req.rsnn_nn.name_len =
(uint8_t)strlen(ct_req->req.rsnn_nn.sym_node_name);
sp->u.iocb_cmd.u.ctarg.req_size = 24 + 1 + ct_req->req.rsnn_nn.name_len;
sp->u.iocb_cmd.u.ctarg.rsp_size = RSNN_NN_RSP_SIZE;
sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async-%s - hdl=%x.\n",
sp->name, sp->handle);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x2043,
"RFT_ID issue IOCB failed (%d).\n", rval);
goto done_free_sp;
}
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
/**
* qla2x00_prep_sns_cmd() - Prepare common SNS command request fields for query.
* @vha: HA context
* @cmd: GS command
* @scmd_len: Subcommand length
* @data_size: response size in bytes
*
* Returns a pointer to the @ha's sns_cmd.
*/
static inline struct sns_cmd_pkt *
qla2x00_prep_sns_cmd(scsi_qla_host_t *vha, uint16_t cmd, uint16_t scmd_len,
uint16_t data_size)
{
uint16_t wc;
struct sns_cmd_pkt *sns_cmd;
struct qla_hw_data *ha = vha->hw;
sns_cmd = ha->sns_cmd;
memset(sns_cmd, 0, sizeof(struct sns_cmd_pkt));
wc = data_size / 2; /* Size in 16bit words. */
sns_cmd->p.cmd.buffer_length = cpu_to_le16(wc);
put_unaligned_le64(ha->sns_cmd_dma, &sns_cmd->p.cmd.buffer_address);
sns_cmd->p.cmd.subcommand_length = cpu_to_le16(scmd_len);
sns_cmd->p.cmd.subcommand = cpu_to_le16(cmd);
wc = (data_size - 16) / 4; /* Size in 32bit words. */
sns_cmd->p.cmd.size = cpu_to_le16(wc);
vha->qla_stats.control_requests++;
return (sns_cmd);
}
/**
* qla2x00_sns_ga_nxt() - SNS scan for fabric devices via GA_NXT command.
* @vha: HA context
* @fcport: fcport entry to updated
*
* This command uses the old Exectute SNS Command mailbox routine.
*
* Returns 0 on success.
*/
static int
qla2x00_sns_ga_nxt(scsi_qla_host_t *vha, fc_port_t *fcport)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
struct sns_cmd_pkt *sns_cmd;
/* Issue GA_NXT. */
/* Prepare SNS command request. */
sns_cmd = qla2x00_prep_sns_cmd(vha, GA_NXT_CMD, GA_NXT_SNS_SCMD_LEN,
GA_NXT_SNS_DATA_SIZE);
/* Prepare SNS command arguments -- port_id. */
sns_cmd->p.cmd.param[0] = fcport->d_id.b.al_pa;
sns_cmd->p.cmd.param[1] = fcport->d_id.b.area;
sns_cmd->p.cmd.param[2] = fcport->d_id.b.domain;
/* Execute SNS command. */
rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, GA_NXT_SNS_CMD_SIZE / 2,
sizeof(struct sns_cmd_pkt));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x205f,
"GA_NXT Send SNS failed (%d).\n", rval);
} else if (sns_cmd->p.gan_data[8] != 0x80 ||
sns_cmd->p.gan_data[9] != 0x02) {
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x2084,
"GA_NXT failed, rejected request ga_nxt_rsp:\n");
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2074,
sns_cmd->p.gan_data, 16);
rval = QLA_FUNCTION_FAILED;
} else {
/* Populate fc_port_t entry. */
fcport->d_id.b.domain = sns_cmd->p.gan_data[17];
fcport->d_id.b.area = sns_cmd->p.gan_data[18];
fcport->d_id.b.al_pa = sns_cmd->p.gan_data[19];
memcpy(fcport->node_name, &sns_cmd->p.gan_data[284], WWN_SIZE);
memcpy(fcport->port_name, &sns_cmd->p.gan_data[20], WWN_SIZE);
if (sns_cmd->p.gan_data[16] != NS_N_PORT_TYPE &&
sns_cmd->p.gan_data[16] != NS_NL_PORT_TYPE)
fcport->d_id.b.domain = 0xf0;
ql_dbg(ql_dbg_disc, vha, 0x2061,
"GA_NXT entry - nn %8phN pn %8phN "
"port_id=%02x%02x%02x.\n",
fcport->node_name, fcport->port_name,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa);
}
return (rval);
}
/**
* qla2x00_sns_gid_pt() - SNS scan for fabric devices via GID_PT command.
* @vha: HA context
* @list: switch info entries to populate
*
* This command uses the old Exectute SNS Command mailbox routine.
*
* NOTE: Non-Nx_Ports are not requested.
*
* Returns 0 on success.
*/
static int
qla2x00_sns_gid_pt(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval;
struct qla_hw_data *ha = vha->hw;
uint16_t i;
uint8_t *entry;
struct sns_cmd_pkt *sns_cmd;
uint16_t gid_pt_sns_data_size;
gid_pt_sns_data_size = qla2x00_gid_pt_rsp_size(vha);
/* Issue GID_PT. */
/* Prepare SNS command request. */
sns_cmd = qla2x00_prep_sns_cmd(vha, GID_PT_CMD, GID_PT_SNS_SCMD_LEN,
gid_pt_sns_data_size);
/* Prepare SNS command arguments -- port_type. */
sns_cmd->p.cmd.param[0] = NS_NX_PORT_TYPE;
/* Execute SNS command. */
rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, GID_PT_SNS_CMD_SIZE / 2,
sizeof(struct sns_cmd_pkt));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x206d,
"GID_PT Send SNS failed (%d).\n", rval);
} else if (sns_cmd->p.gid_data[8] != 0x80 ||
sns_cmd->p.gid_data[9] != 0x02) {
ql_dbg(ql_dbg_disc, vha, 0x202f,
"GID_PT failed, rejected request, gid_rsp:\n");
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2081,
sns_cmd->p.gid_data, 16);
rval = QLA_FUNCTION_FAILED;
} else {
/* Set port IDs in switch info list. */
for (i = 0; i < ha->max_fibre_devices; i++) {
entry = &sns_cmd->p.gid_data[(i * 4) + 16];
list[i].d_id.b.domain = entry[1];
list[i].d_id.b.area = entry[2];
list[i].d_id.b.al_pa = entry[3];
/* Last one exit. */
if (entry[0] & BIT_7) {
list[i].d_id.b.rsvd_1 = entry[0];
break;
}
}
/*
* If we've used all available slots, then the switch is
* reporting back more devices that we can handle with this
* single call. Return a failed status, and let GA_NXT handle
* the overload.
*/
if (i == ha->max_fibre_devices)
rval = QLA_FUNCTION_FAILED;
}
return (rval);
}
/**
* qla2x00_sns_gpn_id() - SNS Get Port Name (GPN_ID) query.
* @vha: HA context
* @list: switch info entries to populate
*
* This command uses the old Exectute SNS Command mailbox routine.
*
* Returns 0 on success.
*/
static int
qla2x00_sns_gpn_id(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
uint16_t i;
struct sns_cmd_pkt *sns_cmd;
for (i = 0; i < ha->max_fibre_devices; i++) {
/* Issue GPN_ID */
/* Prepare SNS command request. */
sns_cmd = qla2x00_prep_sns_cmd(vha, GPN_ID_CMD,
GPN_ID_SNS_SCMD_LEN, GPN_ID_SNS_DATA_SIZE);
/* Prepare SNS command arguments -- port_id. */
sns_cmd->p.cmd.param[0] = list[i].d_id.b.al_pa;
sns_cmd->p.cmd.param[1] = list[i].d_id.b.area;
sns_cmd->p.cmd.param[2] = list[i].d_id.b.domain;
/* Execute SNS command. */
rval = qla2x00_send_sns(vha, ha->sns_cmd_dma,
GPN_ID_SNS_CMD_SIZE / 2, sizeof(struct sns_cmd_pkt));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2032,
"GPN_ID Send SNS failed (%d).\n", rval);
} else if (sns_cmd->p.gpn_data[8] != 0x80 ||
sns_cmd->p.gpn_data[9] != 0x02) {
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x207e,
"GPN_ID failed, rejected request, gpn_rsp:\n");
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x207f,
sns_cmd->p.gpn_data, 16);
rval = QLA_FUNCTION_FAILED;
} else {
/* Save portname */
memcpy(list[i].port_name, &sns_cmd->p.gpn_data[16],
WWN_SIZE);
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
return (rval);
}
/**
* qla2x00_sns_gnn_id() - SNS Get Node Name (GNN_ID) query.
* @vha: HA context
* @list: switch info entries to populate
*
* This command uses the old Exectute SNS Command mailbox routine.
*
* Returns 0 on success.
*/
static int
qla2x00_sns_gnn_id(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
uint16_t i;
struct sns_cmd_pkt *sns_cmd;
for (i = 0; i < ha->max_fibre_devices; i++) {
/* Issue GNN_ID */
/* Prepare SNS command request. */
sns_cmd = qla2x00_prep_sns_cmd(vha, GNN_ID_CMD,
GNN_ID_SNS_SCMD_LEN, GNN_ID_SNS_DATA_SIZE);
/* Prepare SNS command arguments -- port_id. */
sns_cmd->p.cmd.param[0] = list[i].d_id.b.al_pa;
sns_cmd->p.cmd.param[1] = list[i].d_id.b.area;
sns_cmd->p.cmd.param[2] = list[i].d_id.b.domain;
/* Execute SNS command. */
rval = qla2x00_send_sns(vha, ha->sns_cmd_dma,
GNN_ID_SNS_CMD_SIZE / 2, sizeof(struct sns_cmd_pkt));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x203f,
"GNN_ID Send SNS failed (%d).\n", rval);
} else if (sns_cmd->p.gnn_data[8] != 0x80 ||
sns_cmd->p.gnn_data[9] != 0x02) {
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x2082,
"GNN_ID failed, rejected request, gnn_rsp:\n");
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x207a,
sns_cmd->p.gnn_data, 16);
rval = QLA_FUNCTION_FAILED;
} else {
/* Save nodename */
memcpy(list[i].node_name, &sns_cmd->p.gnn_data[16],
WWN_SIZE);
ql_dbg(ql_dbg_disc, vha, 0x206e,
"GID_PT entry - nn %8phN pn %8phN "
"port_id=%02x%02x%02x.\n",
list[i].node_name, list[i].port_name,
list[i].d_id.b.domain, list[i].d_id.b.area,
list[i].d_id.b.al_pa);
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
return (rval);
}
/**
* qla2x00_sns_rft_id() - SNS Register FC-4 TYPEs (RFT_ID) supported by the HBA.
* @vha: HA context
*
* This command uses the old Exectute SNS Command mailbox routine.
*
* Returns 0 on success.
*/
static int
qla2x00_sns_rft_id(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
struct sns_cmd_pkt *sns_cmd;
/* Issue RFT_ID. */
/* Prepare SNS command request. */
sns_cmd = qla2x00_prep_sns_cmd(vha, RFT_ID_CMD, RFT_ID_SNS_SCMD_LEN,
RFT_ID_SNS_DATA_SIZE);
/* Prepare SNS command arguments -- port_id, FC-4 types */
sns_cmd->p.cmd.param[0] = vha->d_id.b.al_pa;
sns_cmd->p.cmd.param[1] = vha->d_id.b.area;
sns_cmd->p.cmd.param[2] = vha->d_id.b.domain;
sns_cmd->p.cmd.param[5] = 0x01; /* FCP-3 */
/* Execute SNS command. */
rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, RFT_ID_SNS_CMD_SIZE / 2,
sizeof(struct sns_cmd_pkt));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2060,
"RFT_ID Send SNS failed (%d).\n", rval);
} else if (sns_cmd->p.rft_data[8] != 0x80 ||
sns_cmd->p.rft_data[9] != 0x02) {
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x2083,
"RFT_ID failed, rejected request rft_rsp:\n");
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2080,
sns_cmd->p.rft_data, 16);
rval = QLA_FUNCTION_FAILED;
} else {
ql_dbg(ql_dbg_disc, vha, 0x2073,
"RFT_ID exiting normally.\n");
}
return (rval);
}
/**
* qla2x00_sns_rnn_id() - SNS Register Node Name (RNN_ID) of the HBA.
* @vha: HA context
*
* This command uses the old Exectute SNS Command mailbox routine.
*
* Returns 0 on success.
*/
static int
qla2x00_sns_rnn_id(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
struct sns_cmd_pkt *sns_cmd;
/* Issue RNN_ID. */
/* Prepare SNS command request. */
sns_cmd = qla2x00_prep_sns_cmd(vha, RNN_ID_CMD, RNN_ID_SNS_SCMD_LEN,
RNN_ID_SNS_DATA_SIZE);
/* Prepare SNS command arguments -- port_id, nodename. */
sns_cmd->p.cmd.param[0] = vha->d_id.b.al_pa;
sns_cmd->p.cmd.param[1] = vha->d_id.b.area;
sns_cmd->p.cmd.param[2] = vha->d_id.b.domain;
sns_cmd->p.cmd.param[4] = vha->node_name[7];
sns_cmd->p.cmd.param[5] = vha->node_name[6];
sns_cmd->p.cmd.param[6] = vha->node_name[5];
sns_cmd->p.cmd.param[7] = vha->node_name[4];
sns_cmd->p.cmd.param[8] = vha->node_name[3];
sns_cmd->p.cmd.param[9] = vha->node_name[2];
sns_cmd->p.cmd.param[10] = vha->node_name[1];
sns_cmd->p.cmd.param[11] = vha->node_name[0];
/* Execute SNS command. */
rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, RNN_ID_SNS_CMD_SIZE / 2,
sizeof(struct sns_cmd_pkt));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x204a,
"RNN_ID Send SNS failed (%d).\n", rval);
} else if (sns_cmd->p.rnn_data[8] != 0x80 ||
sns_cmd->p.rnn_data[9] != 0x02) {
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x207b,
"RNN_ID failed, rejected request, rnn_rsp:\n");
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x207c,
sns_cmd->p.rnn_data, 16);
rval = QLA_FUNCTION_FAILED;
} else {
ql_dbg(ql_dbg_disc, vha, 0x204c,
"RNN_ID exiting normally.\n");
}
return (rval);
}
/**
* qla2x00_mgmt_svr_login() - Login to fabric Management Service.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2x00_mgmt_svr_login(scsi_qla_host_t *vha)
{
int ret, rval;
uint16_t mb[MAILBOX_REGISTER_COUNT];
struct qla_hw_data *ha = vha->hw;
ret = QLA_SUCCESS;
if (vha->flags.management_server_logged_in)
return ret;
rval = ha->isp_ops->fabric_login(vha, vha->mgmt_svr_loop_id, 0xff, 0xff,
0xfa, mb, BIT_1);
if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
if (rval == QLA_MEMORY_ALLOC_FAILED)
ql_dbg(ql_dbg_disc, vha, 0x2085,
"Failed management_server login: loopid=%x "
"rval=%d\n", vha->mgmt_svr_loop_id, rval);
else
ql_dbg(ql_dbg_disc, vha, 0x2024,
"Failed management_server login: loopid=%x "
"mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x.\n",
vha->mgmt_svr_loop_id, mb[0], mb[1], mb[2], mb[6],
mb[7]);
ret = QLA_FUNCTION_FAILED;
} else
vha->flags.management_server_logged_in = 1;
return ret;
}
/**
* qla2x00_prep_ms_fdmi_iocb() - Prepare common MS IOCB fields for FDMI query.
* @vha: HA context
* @req_size: request size in bytes
* @rsp_size: response size in bytes
*
* Returns a pointer to the @ha's ms_iocb.
*/
void *
qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *vha, uint32_t req_size,
uint32_t rsp_size)
{
ms_iocb_entry_t *ms_pkt;
struct qla_hw_data *ha = vha->hw;
ms_pkt = ha->ms_iocb;
memset(ms_pkt, 0, sizeof(ms_iocb_entry_t));
ms_pkt->entry_type = MS_IOCB_TYPE;
ms_pkt->entry_count = 1;
SET_TARGET_ID(ha, ms_pkt->loop_id, vha->mgmt_svr_loop_id);
ms_pkt->control_flags = cpu_to_le16(CF_READ | CF_HEAD_TAG);
ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
ms_pkt->cmd_dsd_count = cpu_to_le16(1);
ms_pkt->total_dsd_count = cpu_to_le16(2);
ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size);
ms_pkt->req_bytecount = cpu_to_le32(req_size);
put_unaligned_le64(ha->ct_sns_dma, &ms_pkt->req_dsd.address);
ms_pkt->req_dsd.length = ms_pkt->req_bytecount;
put_unaligned_le64(ha->ct_sns_dma, &ms_pkt->rsp_dsd.address);
ms_pkt->rsp_dsd.length = ms_pkt->rsp_bytecount;
return ms_pkt;
}
/**
* qla24xx_prep_ms_fdmi_iocb() - Prepare common MS IOCB fields for FDMI query.
* @vha: HA context
* @req_size: request size in bytes
* @rsp_size: response size in bytes
*
* Returns a pointer to the @ha's ms_iocb.
*/
void *
qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *vha, uint32_t req_size,
uint32_t rsp_size)
{
struct ct_entry_24xx *ct_pkt;
struct qla_hw_data *ha = vha->hw;
ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb;
memset(ct_pkt, 0, sizeof(struct ct_entry_24xx));
ct_pkt->entry_type = CT_IOCB_TYPE;
ct_pkt->entry_count = 1;
ct_pkt->nport_handle = cpu_to_le16(vha->mgmt_svr_loop_id);
ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
ct_pkt->cmd_dsd_count = cpu_to_le16(1);
ct_pkt->rsp_dsd_count = cpu_to_le16(1);
ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size);
ct_pkt->cmd_byte_count = cpu_to_le32(req_size);
put_unaligned_le64(ha->ct_sns_dma, &ct_pkt->dsd[0].address);
ct_pkt->dsd[0].length = ct_pkt->cmd_byte_count;
put_unaligned_le64(ha->ct_sns_dma, &ct_pkt->dsd[1].address);
ct_pkt->dsd[1].length = ct_pkt->rsp_byte_count;
ct_pkt->vp_index = vha->vp_idx;
return ct_pkt;
}
static void
qla2x00_update_ms_fdmi_iocb(scsi_qla_host_t *vha, uint32_t req_size)
{
struct qla_hw_data *ha = vha->hw;
ms_iocb_entry_t *ms_pkt = ha->ms_iocb;
struct ct_entry_24xx *ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb;
if (IS_FWI2_CAPABLE(ha)) {
ct_pkt->cmd_byte_count = cpu_to_le32(req_size);
ct_pkt->dsd[0].length = ct_pkt->cmd_byte_count;
} else {
ms_pkt->req_bytecount = cpu_to_le32(req_size);
ms_pkt->req_dsd.length = ms_pkt->req_bytecount;
}
}
/**
* qla2x00_prep_ct_fdmi_req() - Prepare common CT request fields for SNS query.
* @p: CT request buffer
* @cmd: GS command
* @rsp_size: response size in bytes
*
* Returns a pointer to the intitialized @ct_req.
*/
static inline struct ct_sns_req *
qla2x00_prep_ct_fdmi_req(struct ct_sns_pkt *p, uint16_t cmd,
uint16_t rsp_size)
{
memset(p, 0, sizeof(struct ct_sns_pkt));
p->p.req.header.revision = 0x01;
p->p.req.header.gs_type = 0xFA;
p->p.req.header.gs_subtype = 0x10;
p->p.req.command = cpu_to_be16(cmd);
p->p.req.max_rsp_size = cpu_to_be16((rsp_size - 16) / 4);
return &p->p.req;
}
uint
qla25xx_fdmi_port_speed_capability(struct qla_hw_data *ha)
{
uint speeds = 0;
if (IS_CNA_CAPABLE(ha))
return FDMI_PORT_SPEED_10GB;
if (IS_QLA28XX(ha) || IS_QLA27XX(ha)) {
if (ha->max_supported_speed == 2) {
if (ha->min_supported_speed <= 6)
speeds |= FDMI_PORT_SPEED_64GB;
}
if (ha->max_supported_speed == 2 ||
ha->max_supported_speed == 1) {
if (ha->min_supported_speed <= 5)
speeds |= FDMI_PORT_SPEED_32GB;
}
if (ha->max_supported_speed == 2 ||
ha->max_supported_speed == 1 ||
ha->max_supported_speed == 0) {
if (ha->min_supported_speed <= 4)
speeds |= FDMI_PORT_SPEED_16GB;
}
if (ha->max_supported_speed == 1 ||
ha->max_supported_speed == 0) {
if (ha->min_supported_speed <= 3)
speeds |= FDMI_PORT_SPEED_8GB;
}
if (ha->max_supported_speed == 0) {
if (ha->min_supported_speed <= 2)
speeds |= FDMI_PORT_SPEED_4GB;
}
return speeds;
}
if (IS_QLA2031(ha)) {
if ((ha->pdev->subsystem_vendor == 0x103C) &&
((ha->pdev->subsystem_device == 0x8002) ||
(ha->pdev->subsystem_device == 0x8086))) {
speeds = FDMI_PORT_SPEED_16GB;
} else {
speeds = FDMI_PORT_SPEED_16GB|FDMI_PORT_SPEED_8GB|
FDMI_PORT_SPEED_4GB;
}
return speeds;
}
if (IS_QLA25XX(ha) || IS_QLAFX00(ha))
return FDMI_PORT_SPEED_8GB|FDMI_PORT_SPEED_4GB|
FDMI_PORT_SPEED_2GB|FDMI_PORT_SPEED_1GB;
if (IS_QLA24XX_TYPE(ha))
return FDMI_PORT_SPEED_4GB|FDMI_PORT_SPEED_2GB|
FDMI_PORT_SPEED_1GB;
if (IS_QLA23XX(ha))
return FDMI_PORT_SPEED_2GB|FDMI_PORT_SPEED_1GB;
return FDMI_PORT_SPEED_1GB;
}
uint
qla25xx_fdmi_port_speed_currently(struct qla_hw_data *ha)
{
switch (ha->link_data_rate) {
case PORT_SPEED_1GB:
return FDMI_PORT_SPEED_1GB;
case PORT_SPEED_2GB:
return FDMI_PORT_SPEED_2GB;
case PORT_SPEED_4GB:
return FDMI_PORT_SPEED_4GB;
case PORT_SPEED_8GB:
return FDMI_PORT_SPEED_8GB;
case PORT_SPEED_10GB:
return FDMI_PORT_SPEED_10GB;
case PORT_SPEED_16GB:
return FDMI_PORT_SPEED_16GB;
case PORT_SPEED_32GB:
return FDMI_PORT_SPEED_32GB;
case PORT_SPEED_64GB:
return FDMI_PORT_SPEED_64GB;
default:
return FDMI_PORT_SPEED_UNKNOWN;
}
}
/**
* qla2x00_hba_attributes() - perform HBA attributes registration
* @vha: HA context
* @entries: number of entries to use
* @callopt: Option to issue extended or standard FDMI
* command parameter
*
* Returns 0 on success.
*/
static unsigned long
qla2x00_hba_attributes(scsi_qla_host_t *vha, void *entries,
unsigned int callopt)
{
struct qla_hw_data *ha = vha->hw;
struct new_utsname *p_sysid = utsname();
struct ct_fdmi_hba_attr *eiter;
uint16_t alen;
unsigned long size = 0;
/* Nodename. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_NODE_NAME);
memcpy(eiter->a.node_name, vha->node_name, sizeof(eiter->a.node_name));
alen = sizeof(eiter->a.node_name);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a0,
"NODENAME = %016llx.\n", wwn_to_u64(eiter->a.node_name));
/* Manufacturer. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_MANUFACTURER);
alen = scnprintf(
eiter->a.manufacturer, sizeof(eiter->a.manufacturer),
"%s", QLA2XXX_MANUFACTURER);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a1,
"MANUFACTURER = %s.\n", eiter->a.manufacturer);
/* Serial number. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_SERIAL_NUMBER);
alen = 0;
if (IS_FWI2_CAPABLE(ha)) {
alen = qla2xxx_get_vpd_field(vha, "SN",
eiter->a.serial_num, sizeof(eiter->a.serial_num));
}
if (!alen) {
uint32_t sn = ((ha->serial0 & 0x1f) << 16) |
(ha->serial2 << 8) | ha->serial1;
alen = scnprintf(
eiter->a.serial_num, sizeof(eiter->a.serial_num),
"%c%05d", 'A' + sn / 100000, sn % 100000);
}
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a2,
"SERIAL NUMBER = %s.\n", eiter->a.serial_num);
/* Model name. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_MODEL);
alen = scnprintf(
eiter->a.model, sizeof(eiter->a.model),
"%s", ha->model_number);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a3,
"MODEL NAME = %s.\n", eiter->a.model);
/* Model description. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_MODEL_DESCRIPTION);
alen = scnprintf(
eiter->a.model_desc, sizeof(eiter->a.model_desc),
"%s", ha->model_desc);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a4,
"MODEL DESCRIPTION = %s.\n", eiter->a.model_desc);
/* Hardware version. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_HARDWARE_VERSION);
alen = 0;
if (IS_FWI2_CAPABLE(ha)) {
if (!alen) {
alen = qla2xxx_get_vpd_field(vha, "MN",
eiter->a.hw_version, sizeof(eiter->a.hw_version));
}
if (!alen) {
alen = qla2xxx_get_vpd_field(vha, "EC",
eiter->a.hw_version, sizeof(eiter->a.hw_version));
}
}
if (!alen) {
alen = scnprintf(
eiter->a.hw_version, sizeof(eiter->a.hw_version),
"HW:%s", ha->adapter_id);
}
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a5,
"HARDWARE VERSION = %s.\n", eiter->a.hw_version);
/* Driver version. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_DRIVER_VERSION);
alen = scnprintf(
eiter->a.driver_version, sizeof(eiter->a.driver_version),
"%s", qla2x00_version_str);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a6,
"DRIVER VERSION = %s.\n", eiter->a.driver_version);
/* Option ROM version. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_OPTION_ROM_VERSION);
alen = scnprintf(
eiter->a.orom_version, sizeof(eiter->a.orom_version),
"%d.%02d", ha->bios_revision[1], ha->bios_revision[0]);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a7,
"OPTROM VERSION = %d.%02d.\n",
eiter->a.orom_version[1], eiter->a.orom_version[0]);
/* Firmware version */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_FIRMWARE_VERSION);
ha->isp_ops->fw_version_str(vha, eiter->a.fw_version,
sizeof(eiter->a.fw_version));
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a8,
"FIRMWARE VERSION = %s.\n", eiter->a.fw_version);
/* OS Name and Version */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_OS_NAME_AND_VERSION);
alen = 0;
if (p_sysid) {
alen = scnprintf(
eiter->a.os_version, sizeof(eiter->a.os_version),
"%s %s %s",
p_sysid->sysname, p_sysid->release, p_sysid->machine);
}
if (!alen) {
alen = scnprintf(
eiter->a.os_version, sizeof(eiter->a.os_version),
"%s %s",
"Linux", fc_host_system_hostname(vha->host));
}
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20a9,
"OS VERSION = %s.\n", eiter->a.os_version);
if (callopt == CALLOPT_FDMI1)
goto done;
/* MAX CT Payload Length */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_MAXIMUM_CT_PAYLOAD_LENGTH);
eiter->a.max_ct_len = cpu_to_be32(ha->frame_payload_size >> 2);
alen = sizeof(eiter->a.max_ct_len);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20aa,
"CT PAYLOAD LENGTH = 0x%x.\n", be32_to_cpu(eiter->a.max_ct_len));
/* Node Symbolic Name */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_NODE_SYMBOLIC_NAME);
alen = qla2x00_get_sym_node_name(vha, eiter->a.sym_name,
sizeof(eiter->a.sym_name));
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20ab,
"SYMBOLIC NAME = %s.\n", eiter->a.sym_name);
/* Vendor Specific information */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_VENDOR_SPECIFIC_INFO);
eiter->a.vendor_specific_info = cpu_to_be32(PCI_VENDOR_ID_QLOGIC);
alen = sizeof(eiter->a.vendor_specific_info);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20ac,
"VENDOR SPECIFIC INFO = 0x%x.\n",
be32_to_cpu(eiter->a.vendor_specific_info));
/* Num Ports */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_NUM_PORTS);
eiter->a.num_ports = cpu_to_be32(1);
alen = sizeof(eiter->a.num_ports);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20ad,
"PORT COUNT = %x.\n", be32_to_cpu(eiter->a.num_ports));
/* Fabric Name */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_FABRIC_NAME);
memcpy(eiter->a.fabric_name, vha->fabric_node_name,
sizeof(eiter->a.fabric_name));
alen = sizeof(eiter->a.fabric_name);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20ae,
"FABRIC NAME = %016llx.\n", wwn_to_u64(eiter->a.fabric_name));
/* BIOS Version */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_BOOT_BIOS_NAME);
alen = scnprintf(
eiter->a.bios_name, sizeof(eiter->a.bios_name),
"BIOS %d.%02d", ha->bios_revision[1], ha->bios_revision[0]);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20af,
"BIOS NAME = %s\n", eiter->a.bios_name);
/* Vendor Identifier */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_HBA_VENDOR_IDENTIFIER);
alen = scnprintf(
eiter->a.vendor_identifier, sizeof(eiter->a.vendor_identifier),
"%s", "QLGC");
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20b0,
"VENDOR IDENTIFIER = %s.\n", eiter->a.vendor_identifier);
done:
return size;
}
/**
* qla2x00_port_attributes() - perform Port attributes registration
* @vha: HA context
* @entries: number of entries to use
* @callopt: Option to issue extended or standard FDMI
* command parameter
*
* Returns 0 on success.
*/
static unsigned long
qla2x00_port_attributes(scsi_qla_host_t *vha, void *entries,
unsigned int callopt)
{
struct qla_hw_data *ha = vha->hw;
struct new_utsname *p_sysid = utsname();
char *hostname = p_sysid ?
p_sysid->nodename : fc_host_system_hostname(vha->host);
struct ct_fdmi_port_attr *eiter;
uint16_t alen;
unsigned long size = 0;
/* FC4 types. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_FC4_TYPES);
eiter->a.fc4_types[0] = 0x00;
eiter->a.fc4_types[1] = 0x00;
eiter->a.fc4_types[2] = 0x01;
eiter->a.fc4_types[3] = 0x00;
alen = sizeof(eiter->a.fc4_types);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c0,
"FC4 TYPES = %016llx.\n", *(uint64_t *)eiter->a.fc4_types);
if (vha->flags.nvme_enabled) {
eiter->a.fc4_types[6] = 1; /* NVMe type 28h */
ql_dbg(ql_dbg_disc, vha, 0x211f,
"NVME FC4 Type = %02x 0x0 0x0 0x0 0x0 0x0.\n",
eiter->a.fc4_types[6]);
}
/* Supported speed. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_SUPPORT_SPEED);
eiter->a.sup_speed = cpu_to_be32(
qla25xx_fdmi_port_speed_capability(ha));
alen = sizeof(eiter->a.sup_speed);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c1,
"SUPPORTED SPEED = %x.\n", be32_to_cpu(eiter->a.sup_speed));
/* Current speed. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_CURRENT_SPEED);
eiter->a.cur_speed = cpu_to_be32(
qla25xx_fdmi_port_speed_currently(ha));
alen = sizeof(eiter->a.cur_speed);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c2,
"CURRENT SPEED = %x.\n", be32_to_cpu(eiter->a.cur_speed));
/* Max frame size. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_MAX_FRAME_SIZE);
eiter->a.max_frame_size = cpu_to_be32(ha->frame_payload_size);
alen = sizeof(eiter->a.max_frame_size);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c3,
"MAX FRAME SIZE = %x.\n", be32_to_cpu(eiter->a.max_frame_size));
/* OS device name. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_OS_DEVICE_NAME);
alen = scnprintf(
eiter->a.os_dev_name, sizeof(eiter->a.os_dev_name),
"%s:host%lu", QLA2XXX_DRIVER_NAME, vha->host_no);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c4,
"OS DEVICE NAME = %s.\n", eiter->a.os_dev_name);
/* Hostname. */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_HOST_NAME);
if (!*hostname || !strncmp(hostname, "(none)", 6))
hostname = "Linux-default";
alen = scnprintf(
eiter->a.host_name, sizeof(eiter->a.host_name),
"%s", hostname);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c5,
"HOSTNAME = %s.\n", eiter->a.host_name);
if (callopt == CALLOPT_FDMI1)
goto done;
/* Node Name */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_NODE_NAME);
memcpy(eiter->a.node_name, vha->node_name, sizeof(eiter->a.node_name));
alen = sizeof(eiter->a.node_name);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c6,
"NODENAME = %016llx.\n", wwn_to_u64(eiter->a.node_name));
/* Port Name */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_NAME);
memcpy(eiter->a.port_name, vha->port_name, sizeof(eiter->a.port_name));
alen = sizeof(eiter->a.port_name);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c7,
"PORTNAME = %016llx.\n", wwn_to_u64(eiter->a.port_name));
/* Port Symbolic Name */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_SYM_NAME);
alen = qla2x00_get_sym_node_name(vha, eiter->a.port_sym_name,
sizeof(eiter->a.port_sym_name));
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c8,
"PORT SYMBOLIC NAME = %s\n", eiter->a.port_sym_name);
/* Port Type */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_TYPE);
eiter->a.port_type = cpu_to_be32(NS_NX_PORT_TYPE);
alen = sizeof(eiter->a.port_type);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20c9,
"PORT TYPE = %x.\n", be32_to_cpu(eiter->a.port_type));
/* Supported Class of Service */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_SUPP_COS);
eiter->a.port_supported_cos = cpu_to_be32(FC_CLASS_3);
alen = sizeof(eiter->a.port_supported_cos);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20ca,
"SUPPORTED COS = %08x\n", be32_to_cpu(eiter->a.port_supported_cos));
/* Port Fabric Name */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_FABRIC_NAME);
memcpy(eiter->a.fabric_name, vha->fabric_node_name,
sizeof(eiter->a.fabric_name));
alen = sizeof(eiter->a.fabric_name);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20cb,
"FABRIC NAME = %016llx.\n", wwn_to_u64(eiter->a.fabric_name));
/* FC4_type */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_FC4_TYPE);
eiter->a.port_fc4_type[0] = 0x00;
eiter->a.port_fc4_type[1] = 0x00;
eiter->a.port_fc4_type[2] = 0x01;
eiter->a.port_fc4_type[3] = 0x00;
alen = sizeof(eiter->a.port_fc4_type);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20cc,
"PORT ACTIVE FC4 TYPE = %016llx.\n",
*(uint64_t *)eiter->a.port_fc4_type);
/* Port State */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_STATE);
eiter->a.port_state = cpu_to_be32(2);
alen = sizeof(eiter->a.port_state);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20cd,
"PORT_STATE = %x.\n", be32_to_cpu(eiter->a.port_state));
/* Number of Ports */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_COUNT);
eiter->a.num_ports = cpu_to_be32(1);
alen = sizeof(eiter->a.num_ports);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20ce,
"PORT COUNT = %x.\n", be32_to_cpu(eiter->a.num_ports));
/* Port Identifier */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_PORT_IDENTIFIER);
eiter->a.port_id = cpu_to_be32(vha->d_id.b24);
alen = sizeof(eiter->a.port_id);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20cf,
"PORT ID = %x.\n", be32_to_cpu(eiter->a.port_id));
if (callopt == CALLOPT_FDMI2 || !ql2xsmartsan)
goto done;
/* Smart SAN Service Category (Populate Smart SAN Initiator)*/
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_SMARTSAN_SERVICE);
alen = scnprintf(
eiter->a.smartsan_service, sizeof(eiter->a.smartsan_service),
"%s", "Smart SAN Initiator");
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20d0,
"SMARTSAN SERVICE CATEGORY = %s.\n", eiter->a.smartsan_service);
/* Smart SAN GUID (NWWN+PWWN) */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_SMARTSAN_GUID);
memcpy(eiter->a.smartsan_guid, vha->node_name, WWN_SIZE);
memcpy(eiter->a.smartsan_guid + WWN_SIZE, vha->port_name, WWN_SIZE);
alen = sizeof(eiter->a.smartsan_guid);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20d1,
"Smart SAN GUID = %016llx-%016llx\n",
wwn_to_u64(eiter->a.smartsan_guid),
wwn_to_u64(eiter->a.smartsan_guid + WWN_SIZE));
/* Smart SAN Version (populate "Smart SAN Version 1.0") */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_SMARTSAN_VERSION);
alen = scnprintf(
eiter->a.smartsan_version, sizeof(eiter->a.smartsan_version),
"%s", "Smart SAN Version 2.0");
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20d2,
"SMARTSAN VERSION = %s\n", eiter->a.smartsan_version);
/* Smart SAN Product Name (Specify Adapter Model No) */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_SMARTSAN_PROD_NAME);
alen = scnprintf(eiter->a.smartsan_prod_name,
sizeof(eiter->a.smartsan_prod_name),
"ISP%04x", ha->pdev->device);
alen += FDMI_ATTR_ALIGNMENT(alen);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20d3,
"SMARTSAN PRODUCT NAME = %s\n", eiter->a.smartsan_prod_name);
/* Smart SAN Port Info (specify: 1=Physical, 2=NPIV, 3=SRIOV) */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_SMARTSAN_PORT_INFO);
eiter->a.smartsan_port_info = cpu_to_be32(vha->vp_idx ? 2 : 1);
alen = sizeof(eiter->a.smartsan_port_info);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20d4,
"SMARTSAN PORT INFO = %x\n", eiter->a.smartsan_port_info);
/* Smart SAN Security Support */
eiter = entries + size;
eiter->type = cpu_to_be16(FDMI_SMARTSAN_SECURITY_SUPPORT);
eiter->a.smartsan_security_support = cpu_to_be32(1);
alen = sizeof(eiter->a.smartsan_security_support);
alen += FDMI_ATTR_TYPELEN(eiter);
eiter->len = cpu_to_be16(alen);
size += alen;
ql_dbg(ql_dbg_disc, vha, 0x20d6,
"SMARTSAN SECURITY SUPPORT = %d\n",
be32_to_cpu(eiter->a.smartsan_security_support));
done:
return size;
}
/**
* qla2x00_fdmi_rhba() - perform RHBA FDMI registration
* @vha: HA context
* @callopt: Option to issue FDMI registration
*
* Returns 0 on success.
*/
static int
qla2x00_fdmi_rhba(scsi_qla_host_t *vha, unsigned int callopt)
{
struct qla_hw_data *ha = vha->hw;
unsigned long size = 0;
unsigned int rval, count;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
void *entries;
count = callopt != CALLOPT_FDMI1 ?
FDMI2_HBA_ATTR_COUNT : FDMI1_HBA_ATTR_COUNT;
size = RHBA_RSP_SIZE;
ql_dbg(ql_dbg_disc, vha, 0x20e0,
"RHBA (callopt=%x count=%u size=%lu).\n", callopt, count, size);
/* Request size adjusted after CT preparation */
ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(vha, 0, size);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_fdmi_req(ha->ct_sns, RHBA_CMD, size);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare FDMI command entries */
memcpy(ct_req->req.rhba.hba_identifier, vha->port_name,
sizeof(ct_req->req.rhba.hba_identifier));
size += sizeof(ct_req->req.rhba.hba_identifier);
ct_req->req.rhba.entry_count = cpu_to_be32(1);
size += sizeof(ct_req->req.rhba.entry_count);
memcpy(ct_req->req.rhba.port_name, vha->port_name,
sizeof(ct_req->req.rhba.port_name));
size += sizeof(ct_req->req.rhba.port_name);
/* Attribute count */
ct_req->req.rhba.attrs.count = cpu_to_be32(count);
size += sizeof(ct_req->req.rhba.attrs.count);
/* Attribute block */
entries = &ct_req->req.rhba.attrs.entry;
size += qla2x00_hba_attributes(vha, entries, callopt);
/* Update MS request size. */
qla2x00_update_ms_fdmi_iocb(vha, size + 16);
ql_dbg(ql_dbg_disc, vha, 0x20e1,
"RHBA %016llx %016llx.\n",
wwn_to_u64(ct_req->req.rhba.hba_identifier),
wwn_to_u64(ct_req->req.rhba.port_name));
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x20e2,
entries, size);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(*ha->ms_iocb));
if (rval) {
ql_dbg(ql_dbg_disc, vha, 0x20e3,
"RHBA iocb failed (%d).\n", rval);
return rval;
}
rval = qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RHBA");
if (rval) {
if (ct_rsp->header.reason_code == CT_REASON_CANNOT_PERFORM &&
ct_rsp->header.explanation_code ==
CT_EXPL_ALREADY_REGISTERED) {
ql_dbg(ql_dbg_disc, vha, 0x20e4,
"RHBA already registered.\n");
return QLA_ALREADY_REGISTERED;
}
ql_dbg(ql_dbg_disc, vha, 0x20e5,
"RHBA failed, CT Reason %#x, CT Explanation %#x\n",
ct_rsp->header.reason_code,
ct_rsp->header.explanation_code);
return rval;
}
ql_dbg(ql_dbg_disc, vha, 0x20e6, "RHBA exiting normally.\n");
return rval;
}
static int
qla2x00_fdmi_dhba(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
/* Issue RPA */
/* Prepare common MS IOCB */
ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(vha, DHBA_REQ_SIZE,
DHBA_RSP_SIZE);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_fdmi_req(ha->ct_sns, DHBA_CMD, DHBA_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare FDMI command arguments -- portname. */
memcpy(ct_req->req.dhba.port_name, vha->port_name, WWN_SIZE);
ql_dbg(ql_dbg_disc, vha, 0x2036,
"DHBA portname = %8phN.\n", ct_req->req.dhba.port_name);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2037,
"DHBA issue IOCB failed (%d).\n", rval);
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "DHBA") !=
QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
} else {
ql_dbg(ql_dbg_disc, vha, 0x2038,
"DHBA exiting normally.\n");
}
return rval;
}
/**
* qla2x00_fdmi_rprt() - perform RPRT registration
* @vha: HA context
* @callopt: Option to issue extended or standard FDMI
* command parameter
*
* Returns 0 on success.
*/
static int
qla2x00_fdmi_rprt(scsi_qla_host_t *vha, int callopt)
{
struct scsi_qla_host *base_vha = pci_get_drvdata(vha->hw->pdev);
struct qla_hw_data *ha = vha->hw;
ulong size = 0;
uint rval, count;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
void *entries;
count = callopt == CALLOPT_FDMI2_SMARTSAN && ql2xsmartsan ?
FDMI2_SMARTSAN_PORT_ATTR_COUNT :
callopt != CALLOPT_FDMI1 ?
FDMI2_PORT_ATTR_COUNT : FDMI1_PORT_ATTR_COUNT;
size = RPRT_RSP_SIZE;
ql_dbg(ql_dbg_disc, vha, 0x20e8,
"RPRT (callopt=%x count=%u size=%lu).\n", callopt, count, size);
/* Request size adjusted after CT preparation */
ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(vha, 0, size);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_fdmi_req(ha->ct_sns, RPRT_CMD, size);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare FDMI command entries */
memcpy(ct_req->req.rprt.hba_identifier, base_vha->port_name,
sizeof(ct_req->req.rprt.hba_identifier));
size += sizeof(ct_req->req.rprt.hba_identifier);
memcpy(ct_req->req.rprt.port_name, vha->port_name,
sizeof(ct_req->req.rprt.port_name));
size += sizeof(ct_req->req.rprt.port_name);
/* Attribute count */
ct_req->req.rprt.attrs.count = cpu_to_be32(count);
size += sizeof(ct_req->req.rprt.attrs.count);
/* Attribute block */
entries = ct_req->req.rprt.attrs.entry;
size += qla2x00_port_attributes(vha, entries, callopt);
/* Update MS request size. */
qla2x00_update_ms_fdmi_iocb(vha, size + 16);
ql_dbg(ql_dbg_disc, vha, 0x20e9,
"RPRT %016llx %016llx.\n",
wwn_to_u64(ct_req->req.rprt.port_name),
wwn_to_u64(ct_req->req.rprt.port_name));
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x20ea,
entries, size);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(*ha->ms_iocb));
if (rval) {
ql_dbg(ql_dbg_disc, vha, 0x20eb,
"RPRT iocb failed (%d).\n", rval);
return rval;
}
rval = qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RPRT");
if (rval) {
if (ct_rsp->header.reason_code == CT_REASON_CANNOT_PERFORM &&
ct_rsp->header.explanation_code ==
CT_EXPL_ALREADY_REGISTERED) {
ql_dbg(ql_dbg_disc, vha, 0x20ec,
"RPRT already registered.\n");
return QLA_ALREADY_REGISTERED;
}
ql_dbg(ql_dbg_disc, vha, 0x20ed,
"RPRT failed, CT Reason code: %#x, CT Explanation %#x\n",
ct_rsp->header.reason_code,
ct_rsp->header.explanation_code);
return rval;
}
ql_dbg(ql_dbg_disc, vha, 0x20ee, "RPRT exiting normally.\n");
return rval;
}
/**
* qla2x00_fdmi_rpa() - perform RPA registration
* @vha: HA context
* @callopt: Option to issue FDMI registration
*
* Returns 0 on success.
*/
static int
qla2x00_fdmi_rpa(scsi_qla_host_t *vha, uint callopt)
{
struct qla_hw_data *ha = vha->hw;
ulong size = 0;
uint rval, count;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
void *entries;
count =
callopt == CALLOPT_FDMI2_SMARTSAN && ql2xsmartsan ?
FDMI2_SMARTSAN_PORT_ATTR_COUNT :
callopt != CALLOPT_FDMI1 ?
FDMI2_PORT_ATTR_COUNT : FDMI1_PORT_ATTR_COUNT;
size =
callopt != CALLOPT_FDMI1 ?
SMARTSAN_RPA_RSP_SIZE : RPA_RSP_SIZE;
ql_dbg(ql_dbg_disc, vha, 0x20f0,
"RPA (callopt=%x count=%u size=%lu).\n", callopt, count, size);
/* Request size adjusted after CT preparation */
ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(vha, 0, size);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_fdmi_req(ha->ct_sns, RPA_CMD, size);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare FDMI command entries. */
memcpy(ct_req->req.rpa.port_name, vha->port_name,
sizeof(ct_req->req.rpa.port_name));
size += sizeof(ct_req->req.rpa.port_name);
/* Attribute count */
ct_req->req.rpa.attrs.count = cpu_to_be32(count);
size += sizeof(ct_req->req.rpa.attrs.count);
/* Attribute block */
entries = ct_req->req.rpa.attrs.entry;
size += qla2x00_port_attributes(vha, entries, callopt);
/* Update MS request size. */
qla2x00_update_ms_fdmi_iocb(vha, size + 16);
ql_dbg(ql_dbg_disc, vha, 0x20f1,
"RPA %016llx.\n", wwn_to_u64(ct_req->req.rpa.port_name));
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x20f2,
entries, size);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(*ha->ms_iocb));
if (rval) {
ql_dbg(ql_dbg_disc, vha, 0x20f3,
"RPA iocb failed (%d).\n", rval);
return rval;
}
rval = qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RPA");
if (rval) {
if (ct_rsp->header.reason_code == CT_REASON_CANNOT_PERFORM &&
ct_rsp->header.explanation_code ==
CT_EXPL_ALREADY_REGISTERED) {
ql_dbg(ql_dbg_disc, vha, 0x20f4,
"RPA already registered.\n");
return QLA_ALREADY_REGISTERED;
}
ql_dbg(ql_dbg_disc, vha, 0x20f5,
"RPA failed, CT Reason code: %#x, CT Explanation %#x\n",
ct_rsp->header.reason_code,
ct_rsp->header.explanation_code);
return rval;
}
ql_dbg(ql_dbg_disc, vha, 0x20f6, "RPA exiting normally.\n");
return rval;
}
/**
* qla2x00_fdmi_register() -
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla2x00_fdmi_register(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
if (IS_QLA2100(ha) || IS_QLA2200(ha) ||
IS_QLAFX00(ha))
return rval;
rval = qla2x00_mgmt_svr_login(vha);
if (rval)
return rval;
/* For npiv/vport send rprt only */
if (vha->vp_idx) {
if (ql2xsmartsan)
rval = qla2x00_fdmi_rprt(vha, CALLOPT_FDMI2_SMARTSAN);
if (rval || !ql2xsmartsan)
rval = qla2x00_fdmi_rprt(vha, CALLOPT_FDMI2);
if (rval)
rval = qla2x00_fdmi_rprt(vha, CALLOPT_FDMI1);
return rval;
}
/* Try fdmi2 first, if fails then try fdmi1 */
rval = qla2x00_fdmi_rhba(vha, CALLOPT_FDMI2);
if (rval) {
if (rval != QLA_ALREADY_REGISTERED)
goto try_fdmi;
rval = qla2x00_fdmi_dhba(vha);
if (rval)
goto try_fdmi;
rval = qla2x00_fdmi_rhba(vha, CALLOPT_FDMI2);
if (rval)
goto try_fdmi;
}
if (ql2xsmartsan)
rval = qla2x00_fdmi_rpa(vha, CALLOPT_FDMI2_SMARTSAN);
if (rval || !ql2xsmartsan)
rval = qla2x00_fdmi_rpa(vha, CALLOPT_FDMI2);
if (rval)
goto try_fdmi;
return rval;
try_fdmi:
rval = qla2x00_fdmi_rhba(vha, CALLOPT_FDMI1);
if (rval) {
if (rval != QLA_ALREADY_REGISTERED)
return rval;
rval = qla2x00_fdmi_dhba(vha);
if (rval)
return rval;
rval = qla2x00_fdmi_rhba(vha, CALLOPT_FDMI1);
if (rval)
return rval;
}
rval = qla2x00_fdmi_rpa(vha, CALLOPT_FDMI1);
return rval;
}
/**
* qla2x00_gfpn_id() - SNS Get Fabric Port Name (GFPN_ID) query.
* @vha: HA context
* @list: switch info entries to populate
*
* Returns 0 on success.
*/
int
qla2x00_gfpn_id(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval = QLA_SUCCESS;
uint16_t i;
struct qla_hw_data *ha = vha->hw;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
struct ct_arg arg;
if (!IS_IIDMA_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
arg.iocb = ha->ms_iocb;
arg.req_dma = ha->ct_sns_dma;
arg.rsp_dma = ha->ct_sns_dma;
arg.req_size = GFPN_ID_REQ_SIZE;
arg.rsp_size = GFPN_ID_RSP_SIZE;
arg.nport_handle = NPH_SNS;
for (i = 0; i < ha->max_fibre_devices; i++) {
/* Issue GFPN_ID */
/* Prepare common MS IOCB */
ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ha->ct_sns, GFPN_ID_CMD,
GFPN_ID_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_id */
ct_req->req.port_id.port_id = port_id_to_be_id(list[i].d_id);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2023,
"GFPN_ID issue IOCB failed (%d).\n", rval);
break;
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp,
"GFPN_ID") != QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
break;
} else {
/* Save fabric portname */
memcpy(list[i].fabric_port_name,
ct_rsp->rsp.gfpn_id.port_name, WWN_SIZE);
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
return (rval);
}
static inline struct ct_sns_req *
qla24xx_prep_ct_fm_req(struct ct_sns_pkt *p, uint16_t cmd,
uint16_t rsp_size)
{
memset(p, 0, sizeof(struct ct_sns_pkt));
p->p.req.header.revision = 0x01;
p->p.req.header.gs_type = 0xFA;
p->p.req.header.gs_subtype = 0x01;
p->p.req.command = cpu_to_be16(cmd);
p->p.req.max_rsp_size = cpu_to_be16((rsp_size - 16) / 4);
return &p->p.req;
}
static uint16_t
qla2x00_port_speed_capability(uint16_t speed)
{
switch (speed) {
case BIT_15:
return PORT_SPEED_1GB;
case BIT_14:
return PORT_SPEED_2GB;
case BIT_13:
return PORT_SPEED_4GB;
case BIT_12:
return PORT_SPEED_10GB;
case BIT_11:
return PORT_SPEED_8GB;
case BIT_10:
return PORT_SPEED_16GB;
case BIT_8:
return PORT_SPEED_32GB;
case BIT_7:
return PORT_SPEED_64GB;
default:
return PORT_SPEED_UNKNOWN;
}
}
/**
* qla2x00_gpsc() - FCS Get Port Speed Capabilities (GPSC) query.
* @vha: HA context
* @list: switch info entries to populate
*
* Returns 0 on success.
*/
int
qla2x00_gpsc(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval;
uint16_t i;
struct qla_hw_data *ha = vha->hw;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
struct ct_arg arg;
if (!IS_IIDMA_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
if (!ha->flags.gpsc_supported)
return QLA_FUNCTION_FAILED;
rval = qla2x00_mgmt_svr_login(vha);
if (rval)
return rval;
arg.iocb = ha->ms_iocb;
arg.req_dma = ha->ct_sns_dma;
arg.rsp_dma = ha->ct_sns_dma;
arg.req_size = GPSC_REQ_SIZE;
arg.rsp_size = GPSC_RSP_SIZE;
arg.nport_handle = vha->mgmt_svr_loop_id;
for (i = 0; i < ha->max_fibre_devices; i++) {
/* Issue GFPN_ID */
/* Prepare common MS IOCB */
ms_pkt = qla24xx_prep_ms_iocb(vha, &arg);
/* Prepare CT request */
ct_req = qla24xx_prep_ct_fm_req(ha->ct_sns, GPSC_CMD,
GPSC_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_name */
memcpy(ct_req->req.gpsc.port_name, list[i].fabric_port_name,
WWN_SIZE);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_disc, vha, 0x2059,
"GPSC issue IOCB failed (%d).\n", rval);
} else if ((rval = qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp,
"GPSC")) != QLA_SUCCESS) {
/* FM command unsupported? */
if (rval == QLA_INVALID_COMMAND &&
(ct_rsp->header.reason_code ==
CT_REASON_INVALID_COMMAND_CODE ||
ct_rsp->header.reason_code ==
CT_REASON_COMMAND_UNSUPPORTED)) {
ql_dbg(ql_dbg_disc, vha, 0x205a,
"GPSC command unsupported, disabling "
"query.\n");
ha->flags.gpsc_supported = 0;
rval = QLA_FUNCTION_FAILED;
break;
}
rval = QLA_FUNCTION_FAILED;
} else {
list->fp_speed = qla2x00_port_speed_capability(
be16_to_cpu(ct_rsp->rsp.gpsc.speed));
ql_dbg(ql_dbg_disc, vha, 0x205b,
"GPSC ext entry - fpn "
"%8phN speeds=%04x speed=%04x.\n",
list[i].fabric_port_name,
be16_to_cpu(ct_rsp->rsp.gpsc.speeds),
be16_to_cpu(ct_rsp->rsp.gpsc.speed));
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
return (rval);
}
/**
* qla2x00_gff_id() - SNS Get FC-4 Features (GFF_ID) query.
*
* @vha: HA context
* @list: switch info entries to populate
*
*/
void
qla2x00_gff_id(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval;
uint16_t i;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
struct qla_hw_data *ha = vha->hw;
uint8_t fcp_scsi_features = 0, nvme_features = 0;
struct ct_arg arg;
for (i = 0; i < ha->max_fibre_devices; i++) {
/* Set default FC4 Type as UNKNOWN so the default is to
* Process this port */
list[i].fc4_type = 0;
/* Do not attempt GFF_ID if we are not FWI_2 capable */
if (!IS_FWI2_CAPABLE(ha))
continue;
arg.iocb = ha->ms_iocb;
arg.req_dma = ha->ct_sns_dma;
arg.rsp_dma = ha->ct_sns_dma;
arg.req_size = GFF_ID_REQ_SIZE;
arg.rsp_size = GFF_ID_RSP_SIZE;
arg.nport_handle = NPH_SNS;
/* Prepare common MS IOCB */
ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(ha->ct_sns, GFF_ID_CMD,
GFF_ID_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_id */
ct_req->req.port_id.port_id = port_id_to_be_id(list[i].d_id);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x205c,
"GFF_ID issue IOCB failed (%d).\n", rval);
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp,
"GFF_ID") != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x205d,
"GFF_ID IOCB status had a failure status code.\n");
} else {
fcp_scsi_features =
ct_rsp->rsp.gff_id.fc4_features[GFF_FCP_SCSI_OFFSET];
fcp_scsi_features &= 0x0f;
if (fcp_scsi_features) {
list[i].fc4_type = FS_FC4TYPE_FCP;
list[i].fc4_features = fcp_scsi_features;
}
nvme_features =
ct_rsp->rsp.gff_id.fc4_features[GFF_NVME_OFFSET];
nvme_features &= 0xf;
if (nvme_features) {
list[i].fc4_type |= FS_FC4TYPE_NVME;
list[i].fc4_features = nvme_features;
}
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
}
int qla24xx_post_gpsc_work(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_GPSC);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.fcport.fcport = fcport;
return qla2x00_post_work(vha, e);
}
void qla24xx_handle_gpsc_event(scsi_qla_host_t *vha, struct event_arg *ea)
{
struct fc_port *fcport = ea->fcport;
ql_dbg(ql_dbg_disc, vha, 0x20d8,
"%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
__func__, fcport->port_name, fcport->disc_state,
fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
ea->sp->gen2, fcport->rscn_gen|ea->sp->gen1, fcport->loop_id);
if (fcport->disc_state == DSC_DELETE_PEND)
return;
/* We will figure-out what happen after AUTH completes */
if (fcport->disc_state == DSC_LOGIN_AUTH_PEND)
return;
if (ea->sp->gen2 != fcport->login_gen) {
/* target side must have changed it. */
ql_dbg(ql_dbg_disc, vha, 0x20d3,
"%s %8phC generation changed\n",
__func__, fcport->port_name);
return;
} else if (ea->sp->gen1 != fcport->rscn_gen) {
return;
}
qla_post_iidma_work(vha, fcport);
}
static void qla24xx_async_gpsc_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
fc_port_t *fcport = sp->fcport;
struct ct_sns_rsp *ct_rsp;
struct event_arg ea;
ct_rsp = &fcport->ct_desc.ct_sns->p.rsp;
ql_dbg(ql_dbg_disc, vha, 0x2053,
"Async done-%s res %x, WWPN %8phC \n",
sp->name, res, fcport->port_name);
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
if (res == QLA_FUNCTION_TIMEOUT)
goto done;
if (res == (DID_ERROR << 16)) {
/* entry status error */
goto done;
} else if (res) {
if ((ct_rsp->header.reason_code ==
CT_REASON_INVALID_COMMAND_CODE) ||
(ct_rsp->header.reason_code ==
CT_REASON_COMMAND_UNSUPPORTED)) {
ql_dbg(ql_dbg_disc, vha, 0x2019,
"GPSC command unsupported, disabling query.\n");
ha->flags.gpsc_supported = 0;
goto done;
}
} else {
fcport->fp_speed = qla2x00_port_speed_capability(
be16_to_cpu(ct_rsp->rsp.gpsc.speed));
ql_dbg(ql_dbg_disc, vha, 0x2054,
"Async-%s OUT WWPN %8phC speeds=%04x speed=%04x.\n",
sp->name, fcport->fabric_port_name,
be16_to_cpu(ct_rsp->rsp.gpsc.speeds),
be16_to_cpu(ct_rsp->rsp.gpsc.speed));
}
memset(&ea, 0, sizeof(ea));
ea.rc = res;
ea.fcport = fcport;
ea.sp = sp;
qla24xx_handle_gpsc_event(vha, &ea);
done:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int qla24xx_async_gpsc(scsi_qla_host_t *vha, fc_port_t *fcport)
{
int rval = QLA_FUNCTION_FAILED;
struct ct_sns_req *ct_req;
srb_t *sp;
if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
return rval;
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "gpsc";
sp->gen1 = fcport->rscn_gen;
sp->gen2 = fcport->login_gen;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla24xx_async_gpsc_sp_done);
/* CT_IU preamble */
ct_req = qla24xx_prep_ct_fm_req(fcport->ct_desc.ct_sns, GPSC_CMD,
GPSC_RSP_SIZE);
/* GPSC req */
memcpy(ct_req->req.gpsc.port_name, fcport->fabric_port_name,
WWN_SIZE);
sp->u.iocb_cmd.u.ctarg.req = fcport->ct_desc.ct_sns;
sp->u.iocb_cmd.u.ctarg.req_dma = fcport->ct_desc.ct_sns_dma;
sp->u.iocb_cmd.u.ctarg.rsp = fcport->ct_desc.ct_sns;
sp->u.iocb_cmd.u.ctarg.rsp_dma = fcport->ct_desc.ct_sns_dma;
sp->u.iocb_cmd.u.ctarg.req_size = GPSC_REQ_SIZE;
sp->u.iocb_cmd.u.ctarg.rsp_size = GPSC_RSP_SIZE;
sp->u.iocb_cmd.u.ctarg.nport_handle = vha->mgmt_svr_loop_id;
ql_dbg(ql_dbg_disc, vha, 0x205e,
"Async-%s %8phC hdl=%x loopid=%x portid=%02x%02x%02x.\n",
sp->name, fcport->port_name, sp->handle,
fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
void qla24xx_sp_unmap(scsi_qla_host_t *vha, srb_t *sp)
{
struct srb_iocb *c = &sp->u.iocb_cmd;
switch (sp->type) {
case SRB_ELS_DCMD:
qla2x00_els_dcmd2_free(vha, &c->u.els_plogi);
break;
case SRB_CT_PTHRU_CMD:
default:
if (sp->u.iocb_cmd.u.ctarg.req) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.req_allocated_size,
sp->u.iocb_cmd.u.ctarg.req,
sp->u.iocb_cmd.u.ctarg.req_dma);
sp->u.iocb_cmd.u.ctarg.req = NULL;
}
if (sp->u.iocb_cmd.u.ctarg.rsp) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
sp->u.iocb_cmd.u.ctarg.rsp,
sp->u.iocb_cmd.u.ctarg.rsp_dma);
sp->u.iocb_cmd.u.ctarg.rsp = NULL;
}
break;
}
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
void qla24xx_async_gffid_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
fc_port_t *fcport = sp->fcport;
struct ct_sns_rsp *ct_rsp;
uint8_t fc4_scsi_feat;
uint8_t fc4_nvme_feat;
ql_dbg(ql_dbg_disc, vha, 0x2133,
"Async done-%s res %x ID %x. %8phC\n",
sp->name, res, fcport->d_id.b24, fcport->port_name);
ct_rsp = sp->u.iocb_cmd.u.ctarg.rsp;
fc4_scsi_feat = ct_rsp->rsp.gff_id.fc4_features[GFF_FCP_SCSI_OFFSET];
fc4_nvme_feat = ct_rsp->rsp.gff_id.fc4_features[GFF_NVME_OFFSET];
sp->rc = res;
/*
* FC-GS-7, 5.2.3.12 FC-4 Features - format
* The format of the FC-4 Features object, as defined by the FC-4,
* Shall be an array of 4-bit values, one for each type code value
*/
if (!res) {
if (fc4_scsi_feat & 0xf) {
/* w1 b00:03 */
fcport->fc4_type = FS_FC4TYPE_FCP;
fcport->fc4_features = fc4_scsi_feat & 0xf;
}
if (fc4_nvme_feat & 0xf) {
/* w5 [00:03]/28h */
fcport->fc4_type |= FS_FC4TYPE_NVME;
fcport->fc4_features = fc4_nvme_feat & 0xf;
}
}
if (sp->flags & SRB_WAKEUP_ON_COMP) {
complete(sp->comp);
} else {
if (sp->u.iocb_cmd.u.ctarg.req) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.req_allocated_size,
sp->u.iocb_cmd.u.ctarg.req,
sp->u.iocb_cmd.u.ctarg.req_dma);
sp->u.iocb_cmd.u.ctarg.req = NULL;
}
if (sp->u.iocb_cmd.u.ctarg.rsp) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
sp->u.iocb_cmd.u.ctarg.rsp,
sp->u.iocb_cmd.u.ctarg.rsp_dma);
sp->u.iocb_cmd.u.ctarg.rsp = NULL;
}
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
/* we should not be here */
dump_stack();
}
}
/* Get FC4 Feature with Nport ID. */
int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport, bool wait)
{
int rval = QLA_FUNCTION_FAILED;
struct ct_sns_req *ct_req;
srb_t *sp;
DECLARE_COMPLETION_ONSTACK(comp);
/* this routine does not have handling for no wait */
if (!vha->flags.online || !wait)
return rval;
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
return rval;
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "gffid";
sp->gen1 = fcport->rscn_gen;
sp->gen2 = fcport->login_gen;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla24xx_async_gffid_sp_done);
sp->comp = ∁
sp->u.iocb_cmd.timeout = qla2x00_els_dcmd2_iocb_timeout;
if (wait)
sp->flags = SRB_WAKEUP_ON_COMP;
sp->u.iocb_cmd.u.ctarg.req_allocated_size = sizeof(struct ct_sns_pkt);
sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.req_allocated_size,
&sp->u.iocb_cmd.u.ctarg.req_dma,
GFP_KERNEL);
if (!sp->u.iocb_cmd.u.ctarg.req) {
ql_log(ql_log_warn, vha, 0xd041,
"%s: Failed to allocate ct_sns request.\n",
__func__);
goto done_free_sp;
}
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size = sizeof(struct ct_sns_pkt);
sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
&sp->u.iocb_cmd.u.ctarg.rsp_dma,
GFP_KERNEL);
if (!sp->u.iocb_cmd.u.ctarg.rsp) {
ql_log(ql_log_warn, vha, 0xd041,
"%s: Failed to allocate ct_sns response.\n",
__func__);
goto done_free_sp;
}
/* CT_IU preamble */
ct_req = qla2x00_prep_ct_req(sp->u.iocb_cmd.u.ctarg.req, GFF_ID_CMD, GFF_ID_RSP_SIZE);
ct_req->req.gff_id.port_id[0] = fcport->d_id.b.domain;
ct_req->req.gff_id.port_id[1] = fcport->d_id.b.area;
ct_req->req.gff_id.port_id[2] = fcport->d_id.b.al_pa;
sp->u.iocb_cmd.u.ctarg.req_size = GFF_ID_REQ_SIZE;
sp->u.iocb_cmd.u.ctarg.rsp_size = GFF_ID_RSP_SIZE;
sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
goto done_free_sp;
} else {
ql_dbg(ql_dbg_disc, vha, 0x3074,
"Async-%s hdl=%x portid %06x\n",
sp->name, sp->handle, fcport->d_id.b24);
}
wait_for_completion(sp->comp);
rval = sp->rc;
done_free_sp:
if (sp->u.iocb_cmd.u.ctarg.req) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.req_allocated_size,
sp->u.iocb_cmd.u.ctarg.req,
sp->u.iocb_cmd.u.ctarg.req_dma);
sp->u.iocb_cmd.u.ctarg.req = NULL;
}
if (sp->u.iocb_cmd.u.ctarg.rsp) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
sp->u.iocb_cmd.u.ctarg.rsp,
sp->u.iocb_cmd.u.ctarg.rsp_dma);
sp->u.iocb_cmd.u.ctarg.rsp = NULL;
}
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return rval;
}
/* GPN_FT + GNN_FT*/
static int qla2x00_is_a_vp(scsi_qla_host_t *vha, u64 wwn)
{
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *vp;
unsigned long flags;
u64 twwn;
int rc = 0;
if (!ha->num_vhosts)
return 0;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry(vp, &ha->vp_list, list) {
twwn = wwn_to_u64(vp->port_name);
if (wwn == twwn) {
rc = 1;
break;
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
return rc;
}
void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp)
{
fc_port_t *fcport;
u32 i, rc;
bool found;
struct fab_scan_rp *rp, *trp;
unsigned long flags;
u8 recheck = 0;
u16 dup = 0, dup_cnt = 0;
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
"%s enter\n", __func__);
if (sp->gen1 != vha->hw->base_qpair->chip_reset) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s scan stop due to chip reset %x/%x\n",
sp->name, sp->gen1, vha->hw->base_qpair->chip_reset);
goto out;
}
rc = sp->rc;
if (rc) {
vha->scan.scan_retry++;
if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
goto out;
} else {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s: Fabric scan failed for %d retries.\n",
__func__, vha->scan.scan_retry);
/*
* Unable to scan any rports. logout loop below
* will unregister all sessions.
*/
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if ((fcport->flags & FCF_FABRIC_DEVICE) != 0) {
fcport->scan_state = QLA_FCPORT_SCAN;
if (fcport->loop_id == FC_NO_LOOP_ID)
fcport->logout_on_delete = 0;
else
fcport->logout_on_delete = 1;
}
}
goto login_logout;
}
}
vha->scan.scan_retry = 0;
list_for_each_entry(fcport, &vha->vp_fcports, list)
fcport->scan_state = QLA_FCPORT_SCAN;
for (i = 0; i < vha->hw->max_fibre_devices; i++) {
u64 wwn;
int k;
rp = &vha->scan.l[i];
found = false;
wwn = wwn_to_u64(rp->port_name);
if (wwn == 0)
continue;
/* Remove duplicate NPORT ID entries from switch data base */
for (k = i + 1; k < vha->hw->max_fibre_devices; k++) {
trp = &vha->scan.l[k];
if (rp->id.b24 == trp->id.b24) {
dup = 1;
dup_cnt++;
ql_dbg(ql_dbg_disc + ql_dbg_verbose,
vha, 0xffff,
"Detected duplicate NPORT ID from switch data base: ID %06x WWN %8phN WWN %8phN\n",
rp->id.b24, rp->port_name, trp->port_name);
memset(trp, 0, sizeof(*trp));
}
}
if (!memcmp(rp->port_name, vha->port_name, WWN_SIZE))
continue;
/* Bypass reserved domain fields. */
if ((rp->id.b.domain & 0xf0) == 0xf0)
continue;
/* Bypass virtual ports of the same host. */
if (qla2x00_is_a_vp(vha, wwn))
continue;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (memcmp(rp->port_name, fcport->port_name, WWN_SIZE))
continue;
fcport->scan_state = QLA_FCPORT_FOUND;
fcport->last_rscn_gen = fcport->rscn_gen;
fcport->fc4_type = rp->fc4type;
found = true;
if (fcport->scan_needed) {
if (NVME_PRIORITY(vha->hw, fcport))
fcport->do_prli_nvme = 1;
else
fcport->do_prli_nvme = 0;
}
/*
* If device was not a fabric device before.
*/
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
qla2x00_clear_loop_id(fcport);
fcport->flags |= FCF_FABRIC_DEVICE;
} else if (fcport->d_id.b24 != rp->id.b24 ||
(fcport->scan_needed &&
fcport->port_type != FCT_INITIATOR &&
fcport->port_type != FCT_NVME_INITIATOR)) {
qlt_schedule_sess_for_deletion(fcport);
}
fcport->d_id.b24 = rp->id.b24;
fcport->scan_needed = 0;
break;
}
if (!found) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d %8phC post new sess\n",
__func__, __LINE__, rp->port_name);
qla24xx_post_newsess_work(vha, &rp->id, rp->port_name,
rp->node_name, NULL, rp->fc4type);
}
}
if (dup) {
ql_log(ql_log_warn, vha, 0xffff,
"Detected %d duplicate NPORT ID(s) from switch data base\n",
dup_cnt);
}
login_logout:
/*
* Logout all previous fabric dev marked lost, except FCP2 devices.
*/
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
fcport->scan_needed = 0;
continue;
}
if (fcport->scan_state != QLA_FCPORT_FOUND) {
bool do_delete = false;
if (fcport->scan_needed &&
fcport->disc_state == DSC_LOGIN_PEND) {
/* Cable got disconnected after we sent
* a login. Do delete to prevent timeout.
*/
fcport->logout_on_delete = 1;
do_delete = true;
}
fcport->scan_needed = 0;
if (((qla_dual_mode_enabled(vha) ||
qla_ini_mode_enabled(vha)) &&
atomic_read(&fcport->state) == FCS_ONLINE) ||
do_delete) {
if (fcport->loop_id != FC_NO_LOOP_ID) {
if (fcport->flags & FCF_FCP2_DEVICE)
continue;
ql_log(ql_log_warn, vha, 0x20f0,
"%s %d %8phC post del sess\n",
__func__, __LINE__,
fcport->port_name);
fcport->tgt_link_down_time = 0;
qlt_schedule_sess_for_deletion(fcport);
continue;
}
}
} else {
if (fcport->scan_needed ||
fcport->disc_state != DSC_LOGIN_COMPLETE) {
if (fcport->login_retry == 0) {
fcport->login_retry =
vha->hw->login_retry_count;
ql_dbg(ql_dbg_disc, vha, 0x20a3,
"Port login retry %8phN, lid 0x%04x retry cnt=%d.\n",
fcport->port_name, fcport->loop_id,
fcport->login_retry);
}
fcport->scan_needed = 0;
qla24xx_fcport_handle_login(vha, fcport);
}
}
}
recheck = 1;
out:
qla24xx_sp_unmap(vha, sp);
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
spin_unlock_irqrestore(&vha->work_lock, flags);
if (recheck) {
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->scan_needed) {
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
break;
}
}
}
}
static int qla2x00_post_gnnft_gpnft_done_work(struct scsi_qla_host *vha,
srb_t *sp, int cmd)
{
struct qla_work_evt *e;
if (cmd != QLA_EVT_GPNFT_DONE && cmd != QLA_EVT_GNNFT_DONE)
return QLA_PARAMETER_ERROR;
e = qla2x00_alloc_work(vha, cmd);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.iosb.sp = sp;
return qla2x00_post_work(vha, e);
}
static int qla2x00_post_nvme_gpnft_work(struct scsi_qla_host *vha,
srb_t *sp, int cmd)
{
struct qla_work_evt *e;
if (cmd != QLA_EVT_GPNFT)
return QLA_PARAMETER_ERROR;
e = qla2x00_alloc_work(vha, cmd);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.gpnft.fc4_type = FC4_TYPE_NVME;
e->u.gpnft.sp = sp;
return qla2x00_post_work(vha, e);
}
static void qla2x00_find_free_fcp_nvme_slot(struct scsi_qla_host *vha,
struct srb *sp)
{
struct qla_hw_data *ha = vha->hw;
int num_fibre_dev = ha->max_fibre_devices;
struct ct_sns_req *ct_req =
(struct ct_sns_req *)sp->u.iocb_cmd.u.ctarg.req;
struct ct_sns_gpnft_rsp *ct_rsp =
(struct ct_sns_gpnft_rsp *)sp->u.iocb_cmd.u.ctarg.rsp;
struct ct_sns_gpn_ft_data *d;
struct fab_scan_rp *rp;
u16 cmd = be16_to_cpu(ct_req->command);
u8 fc4_type = sp->gen2;
int i, j, k;
port_id_t id;
u8 found;
u64 wwn;
j = 0;
for (i = 0; i < num_fibre_dev; i++) {
d = &ct_rsp->entries[i];
id.b.rsvd_1 = 0;
id.b.domain = d->port_id[0];
id.b.area = d->port_id[1];
id.b.al_pa = d->port_id[2];
wwn = wwn_to_u64(d->port_name);
if (id.b24 == 0 || wwn == 0)
continue;
if (fc4_type == FC4_TYPE_FCP_SCSI) {
if (cmd == GPN_FT_CMD) {
rp = &vha->scan.l[j];
rp->id = id;
memcpy(rp->port_name, d->port_name, 8);
j++;
rp->fc4type = FS_FC4TYPE_FCP;
} else {
for (k = 0; k < num_fibre_dev; k++) {
rp = &vha->scan.l[k];
if (id.b24 == rp->id.b24) {
memcpy(rp->node_name,
d->port_name, 8);
break;
}
}
}
} else {
/* Search if the fibre device supports FC4_TYPE_NVME */
if (cmd == GPN_FT_CMD) {
found = 0;
for (k = 0; k < num_fibre_dev; k++) {
rp = &vha->scan.l[k];
if (!memcmp(rp->port_name,
d->port_name, 8)) {
/*
* Supports FC-NVMe & FCP
*/
rp->fc4type |= FS_FC4TYPE_NVME;
found = 1;
break;
}
}
/* We found new FC-NVMe only port */
if (!found) {
for (k = 0; k < num_fibre_dev; k++) {
rp = &vha->scan.l[k];
if (wwn_to_u64(rp->port_name)) {
continue;
} else {
rp->id = id;
memcpy(rp->port_name,
d->port_name, 8);
rp->fc4type =
FS_FC4TYPE_NVME;
break;
}
}
}
} else {
for (k = 0; k < num_fibre_dev; k++) {
rp = &vha->scan.l[k];
if (id.b24 == rp->id.b24) {
memcpy(rp->node_name,
d->port_name, 8);
break;
}
}
}
}
}
}
static void qla2x00_async_gpnft_gnnft_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
struct ct_sns_req *ct_req =
(struct ct_sns_req *)sp->u.iocb_cmd.u.ctarg.req;
u16 cmd = be16_to_cpu(ct_req->command);
u8 fc4_type = sp->gen2;
unsigned long flags;
int rc;
/* gen2 field is holding the fc4type */
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async done-%s res %x FC4Type %x\n",
sp->name, res, sp->gen2);
sp->rc = res;
if (res) {
unsigned long flags;
const char *name = sp->name;
if (res == QLA_OS_TIMER_EXPIRED) {
/* switch is ignoring all commands.
* This might be a zone disable behavior.
* This means we hit 64s timeout.
* 22s GPNFT + 44s Abort = 64s
*/
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s: Switch Zone check please .\n",
name);
qla2x00_mark_all_devices_lost(vha);
}
/*
* We are in an Interrupt context, queue up this
* sp for GNNFT_DONE work. This will allow all
* the resource to get freed up.
*/
rc = qla2x00_post_gnnft_gpnft_done_work(vha, sp,
QLA_EVT_GNNFT_DONE);
if (rc) {
/* Cleanup here to prevent memory leak */
qla24xx_sp_unmap(vha, sp);
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
vha->scan.scan_retry++;
spin_unlock_irqrestore(&vha->work_lock, flags);
if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async done-%s rescan failed on all retries.\n",
name);
}
}
return;
}
qla2x00_find_free_fcp_nvme_slot(vha, sp);
if ((fc4_type == FC4_TYPE_FCP_SCSI) && vha->flags.nvme_enabled &&
cmd == GNN_FT_CMD) {
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
spin_unlock_irqrestore(&vha->work_lock, flags);
sp->rc = res;
rc = qla2x00_post_nvme_gpnft_work(vha, sp, QLA_EVT_GPNFT);
if (rc) {
qla24xx_sp_unmap(vha, sp);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
}
return;
}
if (cmd == GPN_FT_CMD) {
rc = qla2x00_post_gnnft_gpnft_done_work(vha, sp,
QLA_EVT_GPNFT_DONE);
} else {
rc = qla2x00_post_gnnft_gpnft_done_work(vha, sp,
QLA_EVT_GNNFT_DONE);
}
if (rc) {
qla24xx_sp_unmap(vha, sp);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
return;
}
}
/*
* Get WWNN list for fc4_type
*
* It is assumed the same SRB is re-used from GPNFT to avoid
* mem free & re-alloc
*/
static int qla24xx_async_gnnft(scsi_qla_host_t *vha, struct srb *sp,
u8 fc4_type)
{
int rval = QLA_FUNCTION_FAILED;
struct ct_sns_req *ct_req;
struct ct_sns_pkt *ct_sns;
unsigned long flags;
if (!vha->flags.online) {
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
spin_unlock_irqrestore(&vha->work_lock, flags);
goto done_free_sp;
}
if (!sp->u.iocb_cmd.u.ctarg.req || !sp->u.iocb_cmd.u.ctarg.rsp) {
ql_log(ql_log_warn, vha, 0xffff,
"%s: req %p rsp %p are not setup\n",
__func__, sp->u.iocb_cmd.u.ctarg.req,
sp->u.iocb_cmd.u.ctarg.rsp);
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
spin_unlock_irqrestore(&vha->work_lock, flags);
WARN_ON(1);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
goto done_free_sp;
}
ql_dbg(ql_dbg_disc, vha, 0xfffff,
"%s: FC4Type %x, CT-PASSTHRU %s command ctarg rsp size %d, ctarg req size %d\n",
__func__, fc4_type, sp->name, sp->u.iocb_cmd.u.ctarg.rsp_size,
sp->u.iocb_cmd.u.ctarg.req_size);
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "gnnft";
sp->gen1 = vha->hw->base_qpair->chip_reset;
sp->gen2 = fc4_type;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_gpnft_gnnft_sp_done);
memset(sp->u.iocb_cmd.u.ctarg.rsp, 0, sp->u.iocb_cmd.u.ctarg.rsp_size);
memset(sp->u.iocb_cmd.u.ctarg.req, 0, sp->u.iocb_cmd.u.ctarg.req_size);
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
/* CT_IU preamble */
ct_req = qla2x00_prep_ct_req(ct_sns, GNN_FT_CMD,
sp->u.iocb_cmd.u.ctarg.rsp_size);
/* GPN_FT req */
ct_req->req.gpn_ft.port_type = fc4_type;
sp->u.iocb_cmd.u.ctarg.req_size = GNN_FT_REQ_SIZE;
sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async-%s hdl=%x FC4Type %x.\n", sp->name,
sp->handle, ct_req->req.gpn_ft.port_type);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
goto done_free_sp;
}
return rval;
done_free_sp:
if (sp->u.iocb_cmd.u.ctarg.req) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.req_allocated_size,
sp->u.iocb_cmd.u.ctarg.req,
sp->u.iocb_cmd.u.ctarg.req_dma);
sp->u.iocb_cmd.u.ctarg.req = NULL;
}
if (sp->u.iocb_cmd.u.ctarg.rsp) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
sp->u.iocb_cmd.u.ctarg.rsp,
sp->u.iocb_cmd.u.ctarg.rsp_dma);
sp->u.iocb_cmd.u.ctarg.rsp = NULL;
}
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
if (vha->scan.scan_flags == 0) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s: schedule\n", __func__);
vha->scan.scan_flags |= SF_QUEUED;
schedule_delayed_work(&vha->scan.scan_work, 5);
}
spin_unlock_irqrestore(&vha->work_lock, flags);
return rval;
} /* GNNFT */
void qla24xx_async_gpnft_done(scsi_qla_host_t *vha, srb_t *sp)
{
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
"%s enter\n", __func__);
qla24xx_async_gnnft(vha, sp, sp->gen2);
}
/* Get WWPN list for certain fc4_type */
int qla24xx_async_gpnft(scsi_qla_host_t *vha, u8 fc4_type, srb_t *sp)
{
int rval = QLA_FUNCTION_FAILED;
struct ct_sns_req *ct_req;
struct ct_sns_pkt *ct_sns;
u32 rspsz;
unsigned long flags;
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
"%s enter\n", __func__);
if (!vha->flags.online)
return rval;
spin_lock_irqsave(&vha->work_lock, flags);
if (vha->scan.scan_flags & SF_SCANNING) {
spin_unlock_irqrestore(&vha->work_lock, flags);
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
"%s: scan active\n", __func__);
return rval;
}
vha->scan.scan_flags |= SF_SCANNING;
spin_unlock_irqrestore(&vha->work_lock, flags);
if (fc4_type == FC4_TYPE_FCP_SCSI) {
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
"%s: Performing FCP Scan\n", __func__);
if (sp) {
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
/* ref: INIT */
sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
if (!sp) {
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
spin_unlock_irqrestore(&vha->work_lock, flags);
return rval;
}
sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
sizeof(struct ct_sns_pkt),
&sp->u.iocb_cmd.u.ctarg.req_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.req_allocated_size = sizeof(struct ct_sns_pkt);
if (!sp->u.iocb_cmd.u.ctarg.req) {
ql_log(ql_log_warn, vha, 0xffff,
"Failed to allocate ct_sns request.\n");
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
spin_unlock_irqrestore(&vha->work_lock, flags);
qla2x00_rel_sp(sp);
return rval;
}
sp->u.iocb_cmd.u.ctarg.req_size = GPN_FT_REQ_SIZE;
rspsz = sizeof(struct ct_sns_gpnft_rsp) +
vha->hw->max_fibre_devices *
sizeof(struct ct_sns_gpn_ft_data);
sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
rspsz,
&sp->u.iocb_cmd.u.ctarg.rsp_dma,
GFP_KERNEL);
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size = rspsz;
if (!sp->u.iocb_cmd.u.ctarg.rsp) {
ql_log(ql_log_warn, vha, 0xffff,
"Failed to allocate ct_sns request.\n");
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
spin_unlock_irqrestore(&vha->work_lock, flags);
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.req_allocated_size,
sp->u.iocb_cmd.u.ctarg.req,
sp->u.iocb_cmd.u.ctarg.req_dma);
sp->u.iocb_cmd.u.ctarg.req = NULL;
/* ref: INIT */
qla2x00_rel_sp(sp);
return rval;
}
sp->u.iocb_cmd.u.ctarg.rsp_size = rspsz;
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
"%s scan list size %d\n", __func__, vha->scan.size);
memset(vha->scan.l, 0, vha->scan.size);
} else if (!sp) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"NVME scan did not provide SP\n");
return rval;
}
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "gpnft";
sp->gen1 = vha->hw->base_qpair->chip_reset;
sp->gen2 = fc4_type;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_gpnft_gnnft_sp_done);
rspsz = sp->u.iocb_cmd.u.ctarg.rsp_size;
memset(sp->u.iocb_cmd.u.ctarg.rsp, 0, sp->u.iocb_cmd.u.ctarg.rsp_size);
memset(sp->u.iocb_cmd.u.ctarg.req, 0, sp->u.iocb_cmd.u.ctarg.req_size);
ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
/* CT_IU preamble */
ct_req = qla2x00_prep_ct_req(ct_sns, GPN_FT_CMD, rspsz);
/* GPN_FT req */
ct_req->req.gpn_ft.port_type = fc4_type;
sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async-%s hdl=%x FC4Type %x.\n", sp->name,
sp->handle, ct_req->req.gpn_ft.port_type);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
goto done_free_sp;
}
return rval;
done_free_sp:
if (sp->u.iocb_cmd.u.ctarg.req) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.req_allocated_size,
sp->u.iocb_cmd.u.ctarg.req,
sp->u.iocb_cmd.u.ctarg.req_dma);
sp->u.iocb_cmd.u.ctarg.req = NULL;
}
if (sp->u.iocb_cmd.u.ctarg.rsp) {
dma_free_coherent(&vha->hw->pdev->dev,
sp->u.iocb_cmd.u.ctarg.rsp_allocated_size,
sp->u.iocb_cmd.u.ctarg.rsp,
sp->u.iocb_cmd.u.ctarg.rsp_dma);
sp->u.iocb_cmd.u.ctarg.rsp = NULL;
}
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_SCANNING;
if (vha->scan.scan_flags == 0) {
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
"%s: Scan scheduled.\n", __func__);
vha->scan.scan_flags |= SF_QUEUED;
schedule_delayed_work(&vha->scan.scan_work, 5);
}
spin_unlock_irqrestore(&vha->work_lock, flags);
return rval;
}
void qla_scan_work_fn(struct work_struct *work)
{
struct fab_scan *s = container_of(to_delayed_work(work),
struct fab_scan, scan_work);
struct scsi_qla_host *vha = container_of(s, struct scsi_qla_host,
scan);
unsigned long flags;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s: schedule loop resync\n", __func__);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
spin_lock_irqsave(&vha->work_lock, flags);
vha->scan.scan_flags &= ~SF_QUEUED;
spin_unlock_irqrestore(&vha->work_lock, flags);
}
/* GPFN_ID */
void qla24xx_handle_gfpnid_event(scsi_qla_host_t *vha, struct event_arg *ea)
{
fc_port_t *fcport = ea->fcport;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d fcpcnt %d\n",
__func__, fcport->port_name, fcport->disc_state,
fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
fcport->rscn_gen, ea->sp->gen1, vha->fcport_count);
if (fcport->disc_state == DSC_DELETE_PEND)
return;
if (ea->sp->gen2 != fcport->login_gen) {
/* target side must have changed it. */
ql_dbg(ql_dbg_disc, vha, 0x20d3,
"%s %8phC generation changed\n",
__func__, fcport->port_name);
return;
} else if (ea->sp->gen1 != fcport->rscn_gen) {
return;
}
qla24xx_post_gpsc_work(vha, fcport);
}
static void qla2x00_async_gfpnid_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
fc_port_t *fcport = sp->fcport;
u8 *fpn = fcport->ct_desc.ct_sns->p.rsp.rsp.gfpn_id.port_name;
struct event_arg ea;
u64 wwn;
wwn = wwn_to_u64(fpn);
if (wwn)
memcpy(fcport->fabric_port_name, fpn, WWN_SIZE);
memset(&ea, 0, sizeof(ea));
ea.fcport = fcport;
ea.sp = sp;
ea.rc = res;
ql_dbg(ql_dbg_disc, vha, 0x204f,
"Async done-%s res %x, WWPN %8phC %8phC\n",
sp->name, res, fcport->port_name, fcport->fabric_port_name);
qla24xx_handle_gfpnid_event(vha, &ea);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int qla24xx_async_gfpnid(scsi_qla_host_t *vha, fc_port_t *fcport)
{
int rval = QLA_FUNCTION_FAILED;
struct ct_sns_req *ct_req;
srb_t *sp;
if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
return rval;
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
if (!sp)
goto done;
sp->type = SRB_CT_PTHRU_CMD;
sp->name = "gfpnid";
sp->gen1 = fcport->rscn_gen;
sp->gen2 = fcport->login_gen;
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_gfpnid_sp_done);
/* CT_IU preamble */
ct_req = qla2x00_prep_ct_req(fcport->ct_desc.ct_sns, GFPN_ID_CMD,
GFPN_ID_RSP_SIZE);
/* GFPN_ID req */
ct_req->req.port_id.port_id = port_id_to_be_id(fcport->d_id);
/* req & rsp use the same buffer */
sp->u.iocb_cmd.u.ctarg.req = fcport->ct_desc.ct_sns;
sp->u.iocb_cmd.u.ctarg.req_dma = fcport->ct_desc.ct_sns_dma;
sp->u.iocb_cmd.u.ctarg.rsp = fcport->ct_desc.ct_sns;
sp->u.iocb_cmd.u.ctarg.rsp_dma = fcport->ct_desc.ct_sns_dma;
sp->u.iocb_cmd.u.ctarg.req_size = GFPN_ID_REQ_SIZE;
sp->u.iocb_cmd.u.ctarg.rsp_size = GFPN_ID_RSP_SIZE;
sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"Async-%s - %8phC hdl=%x loopid=%x portid %06x.\n",
sp->name, fcport->port_name,
sp->handle, fcport->loop_id, fcport->d_id.b24);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
return rval;
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
int qla24xx_post_gfpnid_work(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_work_evt *e;
int ls;
ls = atomic_read(&vha->loop_state);
if (((ls != LOOP_READY) && (ls != LOOP_UP)) ||
test_bit(UNLOADING, &vha->dpc_flags))
return 0;
e = qla2x00_alloc_work(vha, QLA_EVT_GFPNID);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.fcport.fcport = fcport;
return qla2x00_post_work(vha, e);
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_gs.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_gbl.h"
#include "qla_target.h"
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <linux/delay.h>
void
qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
{
if (vha->vp_idx && vha->timer_active) {
del_timer_sync(&vha->timer);
vha->timer_active = 0;
}
}
static uint32_t
qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
{
uint32_t vp_id;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
/* Find an empty slot and assign an vp_id */
mutex_lock(&ha->vport_lock);
vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
if (vp_id > ha->max_npiv_vports) {
ql_dbg(ql_dbg_vport, vha, 0xa000,
"vp_id %d is bigger than max-supported %d.\n",
vp_id, ha->max_npiv_vports);
mutex_unlock(&ha->vport_lock);
return vp_id;
}
set_bit(vp_id, ha->vp_idx_map);
ha->num_vhosts++;
vha->vp_idx = vp_id;
spin_lock_irqsave(&ha->vport_slock, flags);
list_add_tail(&vha->list, &ha->vp_list);
spin_unlock_irqrestore(&ha->vport_slock, flags);
spin_lock_irqsave(&ha->hardware_lock, flags);
qla_update_vp_map(vha, SET_VP_IDX);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
mutex_unlock(&ha->vport_lock);
return vp_id;
}
void
qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
{
uint16_t vp_id;
struct qla_hw_data *ha = vha->hw;
unsigned long flags = 0;
u32 i, bailout;
mutex_lock(&ha->vport_lock);
/*
* Wait for all pending activities to finish before removing vport from
* the list.
* Lock needs to be held for safe removal from the list (it
* ensures no active vp_list traversal while the vport is removed
* from the queue)
*/
bailout = 0;
for (i = 0; i < 500; i++) {
spin_lock_irqsave(&ha->vport_slock, flags);
if (atomic_read(&vha->vref_count) == 0) {
list_del(&vha->list);
qla_update_vp_map(vha, RESET_VP_IDX);
bailout = 1;
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
if (bailout)
break;
else
msleep(20);
}
if (!bailout) {
ql_log(ql_log_info, vha, 0xfffa,
"vha->vref_count=%u timeout\n", vha->vref_count.counter);
spin_lock_irqsave(&ha->vport_slock, flags);
list_del(&vha->list);
qla_update_vp_map(vha, RESET_VP_IDX);
spin_unlock_irqrestore(&ha->vport_slock, flags);
}
vp_id = vha->vp_idx;
ha->num_vhosts--;
clear_bit(vp_id, ha->vp_idx_map);
mutex_unlock(&ha->vport_lock);
}
static scsi_qla_host_t *
qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
{
scsi_qla_host_t *vha;
struct scsi_qla_host *tvha;
unsigned long flags;
spin_lock_irqsave(&ha->vport_slock, flags);
/* Locate matching device in database. */
list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
if (!memcmp(port_name, vha->port_name, WWN_SIZE)) {
spin_unlock_irqrestore(&ha->vport_slock, flags);
return vha;
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
return NULL;
}
/*
* qla2x00_mark_vp_devices_dead
* Updates fcport state when device goes offline.
*
* Input:
* ha = adapter block pointer.
* fcport = port structure pointer.
*
* Return:
* None.
*
* Context:
*/
static void
qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
{
/*
* !!! NOTE !!!
* This function, if called in contexts other than vp create, disable
* or delete, please make sure this is synchronized with the
* delete thread.
*/
fc_port_t *fcport;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
ql_dbg(ql_dbg_vport, vha, 0xa001,
"Marking port dead, loop_id=0x%04x : %x.\n",
fcport->loop_id, fcport->vha->vp_idx);
qla2x00_mark_device_lost(vha, fcport, 0);
qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
}
}
int
qla24xx_disable_vp(scsi_qla_host_t *vha)
{
unsigned long flags;
int ret = QLA_SUCCESS;
fc_port_t *fcport;
if (vha->hw->flags.edif_enabled) {
if (DBELL_ACTIVE(vha))
qla2x00_post_aen_work(vha, FCH_EVT_VENDOR_UNIQUE,
FCH_EVT_VENDOR_UNIQUE_VPORT_DOWN);
/* delete sessions and flush sa_indexes */
qla2x00_wait_for_sess_deletion(vha);
}
if (vha->hw->flags.fw_started)
ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
list_for_each_entry(fcport, &vha->vp_fcports, list)
fcport->logout_on_delete = 0;
if (!vha->hw->flags.edif_enabled)
qla2x00_wait_for_sess_deletion(vha);
/* Remove port id from vp target map */
spin_lock_irqsave(&vha->hw->hardware_lock, flags);
qla_update_vp_map(vha, RESET_AL_PA);
spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
qla2x00_mark_vp_devices_dead(vha);
atomic_set(&vha->vp_state, VP_FAILED);
vha->flags.management_server_logged_in = 0;
if (ret == QLA_SUCCESS) {
fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
} else {
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
return -1;
}
return 0;
}
int
qla24xx_enable_vp(scsi_qla_host_t *vha)
{
int ret;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
/* Check if physical ha port is Up */
if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD ||
!(ha->current_topology & ISP_CFG_F)) {
vha->vp_err_state = VP_ERR_PORTDWN;
fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
ql_dbg(ql_dbg_taskm, vha, 0x800b,
"%s skip enable. loop_state %x topo %x\n",
__func__, base_vha->loop_state.counter,
ha->current_topology);
goto enable_failed;
}
/* Initialize the new vport unless it is a persistent port */
mutex_lock(&ha->vport_lock);
ret = qla24xx_modify_vp_config(vha);
mutex_unlock(&ha->vport_lock);
if (ret != QLA_SUCCESS) {
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
goto enable_failed;
}
ql_dbg(ql_dbg_taskm, vha, 0x801a,
"Virtual port with id: %d - Enabled.\n", vha->vp_idx);
return 0;
enable_failed:
ql_dbg(ql_dbg_taskm, vha, 0x801b,
"Virtual port with id: %d - Disabled.\n", vha->vp_idx);
return 1;
}
static void
qla24xx_configure_vp(scsi_qla_host_t *vha)
{
struct fc_vport *fc_vport;
int ret;
fc_vport = vha->fc_vport;
ql_dbg(ql_dbg_vport, vha, 0xa002,
"%s: change request #3.\n", __func__);
ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
if (ret != QLA_SUCCESS) {
ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable "
"receiving of RSCN requests: 0x%x.\n", ret);
return;
} else {
/* Corresponds to SCR enabled */
clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
}
vha->flags.online = 1;
if (qla24xx_configure_vhba(vha))
return;
atomic_set(&vha->vp_state, VP_ACTIVE);
fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
}
void
qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
{
scsi_qla_host_t *vha, *tvp;
struct qla_hw_data *ha = rsp->hw;
int i = 0;
unsigned long flags;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vha, tvp, &ha->vp_list, list) {
if (vha->vp_idx) {
if (test_bit(VPORT_DELETE, &vha->dpc_flags))
continue;
atomic_inc(&vha->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
switch (mb[0]) {
case MBA_LIP_OCCURRED:
case MBA_LOOP_UP:
case MBA_LOOP_DOWN:
case MBA_LIP_RESET:
case MBA_POINT_TO_POINT:
case MBA_CHG_IN_CONNECTION:
ql_dbg(ql_dbg_async, vha, 0x5024,
"Async_event for VP[%d], mb=0x%x vha=%p.\n",
i, *mb, vha);
qla2x00_async_event(vha, rsp, mb);
break;
case MBA_PORT_UPDATE:
case MBA_RSCN_UPDATE:
if ((mb[3] & 0xff) == vha->vp_idx) {
ql_dbg(ql_dbg_async, vha, 0x5024,
"Async_event for VP[%d], mb=0x%x vha=%p\n",
i, *mb, vha);
qla2x00_async_event(vha, rsp, mb);
}
break;
}
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vha->vref_count);
wake_up(&vha->vref_waitq);
}
i++;
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
}
int
qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
{
fc_port_t *fcport;
/*
* To exclusively reset vport, we need to log it out first.
* Note: This control_vp can fail if ISP reset is already
* issued, this is expected, as the vp would be already
* logged out due to ISP reset.
*/
if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
list_for_each_entry(fcport, &vha->vp_fcports, list)
fcport->logout_on_delete = 0;
}
/*
* Physical port will do most of the abort and recovery work. We can
* just treat it as a loop down
*/
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
qla2x00_mark_all_devices_lost(vha);
} else {
if (!atomic_read(&vha->loop_down_timer))
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
}
ql_dbg(ql_dbg_taskm, vha, 0x801d,
"Scheduling enable of Vport %d.\n", vha->vp_idx);
return qla24xx_enable_vp(vha);
}
static int
qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
"Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
/* Check if Fw is ready to configure VP first */
if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
/* VP acquired. complete port configuration */
ql_dbg(ql_dbg_dpc, vha, 0x4014,
"Configure VP scheduled.\n");
qla24xx_configure_vp(vha);
ql_dbg(ql_dbg_dpc, vha, 0x4015,
"Configure VP end.\n");
return 0;
}
}
if (test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)) {
if (atomic_read(&vha->loop_state) == LOOP_READY) {
qla24xx_process_purex_list(&vha->purex_list);
clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
}
}
if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) &&
!test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
atomic_read(&vha->loop_state) != LOOP_DOWN) {
if (!vha->relogin_jif ||
time_after_eq(jiffies, vha->relogin_jif)) {
vha->relogin_jif = jiffies + HZ;
clear_bit(RELOGIN_NEEDED, &vha->dpc_flags);
ql_dbg(ql_dbg_dpc, vha, 0x4018,
"Relogin needed scheduled.\n");
qla24xx_post_relogin_work(vha);
}
}
if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
(!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
clear_bit(RESET_ACTIVE, &vha->dpc_flags);
}
if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
ql_dbg(ql_dbg_dpc, vha, 0x401a,
"Loop resync scheduled.\n");
qla2x00_loop_resync(vha);
clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
ql_dbg(ql_dbg_dpc, vha, 0x401b,
"Loop resync end.\n");
}
}
ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c,
"Exiting %s.\n", __func__);
return 0;
}
void
qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *vp, *tvp;
unsigned long flags = 0;
if (vha->vp_idx)
return;
if (list_empty(&ha->vp_list))
return;
clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
if (!(ha->current_topology & ISP_CFG_F))
return;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
if (vp->vp_idx) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
qla2x00_do_dpc_vp(vp);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
}
int
qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
{
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
struct qla_hw_data *ha = base_vha->hw;
scsi_qla_host_t *vha;
uint8_t port_name[WWN_SIZE];
if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
return VPCERR_UNSUPPORTED;
/* Check up the F/W and H/W support NPIV */
if (!ha->flags.npiv_supported)
return VPCERR_UNSUPPORTED;
/* Check up whether npiv supported switch presented */
if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
return VPCERR_NO_FABRIC_SUPP;
/* Check up unique WWPN */
u64_to_wwn(fc_vport->port_name, port_name);
if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
return VPCERR_BAD_WWN;
vha = qla24xx_find_vhost_by_name(ha, port_name);
if (vha)
return VPCERR_BAD_WWN;
/* Check up max-npiv-supports */
if (ha->num_vhosts > ha->max_npiv_vports) {
ql_dbg(ql_dbg_vport, vha, 0xa004,
"num_vhosts %ud is bigger "
"than max_npiv_vports %ud.\n",
ha->num_vhosts, ha->max_npiv_vports);
return VPCERR_UNSUPPORTED;
}
return 0;
}
scsi_qla_host_t *
qla24xx_create_vhost(struct fc_vport *fc_vport)
{
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
struct qla_hw_data *ha = base_vha->hw;
scsi_qla_host_t *vha;
const struct scsi_host_template *sht = &qla2xxx_driver_template;
struct Scsi_Host *host;
vha = qla2x00_create_host(sht, ha);
if (!vha) {
ql_log(ql_log_warn, vha, 0xa005,
"scsi_host_alloc() failed for vport.\n");
return(NULL);
}
host = vha->host;
fc_vport->dd_data = vha;
/* New host info */
u64_to_wwn(fc_vport->node_name, vha->node_name);
u64_to_wwn(fc_vport->port_name, vha->port_name);
vha->fc_vport = fc_vport;
vha->device_flags = 0;
vha->vp_idx = qla24xx_allocate_vp_id(vha);
if (vha->vp_idx > ha->max_npiv_vports) {
ql_dbg(ql_dbg_vport, vha, 0xa006,
"Couldn't allocate vp_id.\n");
goto create_vhost_failed;
}
vha->mgmt_svr_loop_id = qla2x00_reserve_mgmt_server_loop_id(vha);
vha->dpc_flags = 0L;
ha->dpc_active = 0;
set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
/*
* To fix the issue of processing a parent's RSCN for the vport before
* its SCR is complete.
*/
set_bit(VP_SCR_NEEDED, &vha->vp_flags);
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_start_timer(vha, WATCH_INTERVAL);
vha->req = base_vha->req;
vha->flags.nvme_enabled = base_vha->flags.nvme_enabled;
host->can_queue = base_vha->req->length + 128;
host->cmd_per_lun = 3;
if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
host->max_cmd_len = 32;
else
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
host->max_lun = ql2xmaxlun;
host->unique_id = host->host_no;
host->max_id = ha->max_fibre_devices;
host->transportt = qla2xxx_transport_vport_template;
ql_dbg(ql_dbg_vport, vha, 0xa007,
"Detect vport hba %ld at address = %p.\n",
vha->host_no, vha);
vha->flags.init_done = 1;
mutex_lock(&ha->vport_lock);
set_bit(vha->vp_idx, ha->vp_idx_map);
ha->cur_vport_count++;
mutex_unlock(&ha->vport_lock);
return vha;
create_vhost_failed:
return NULL;
}
static void
qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
{
struct qla_hw_data *ha = vha->hw;
uint16_t que_id = req->id;
dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
sizeof(request_t), req->ring, req->dma);
req->ring = NULL;
req->dma = 0;
if (que_id) {
ha->req_q_map[que_id] = NULL;
mutex_lock(&ha->vport_lock);
clear_bit(que_id, ha->req_qid_map);
mutex_unlock(&ha->vport_lock);
}
kfree(req->outstanding_cmds);
kfree(req);
}
static void
qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
{
struct qla_hw_data *ha = vha->hw;
uint16_t que_id = rsp->id;
if (rsp->msix && rsp->msix->have_irq) {
free_irq(rsp->msix->vector, rsp->msix->handle);
rsp->msix->have_irq = 0;
rsp->msix->in_use = 0;
rsp->msix->handle = NULL;
}
dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
sizeof(response_t), rsp->ring, rsp->dma);
rsp->ring = NULL;
rsp->dma = 0;
if (que_id) {
ha->rsp_q_map[que_id] = NULL;
mutex_lock(&ha->vport_lock);
clear_bit(que_id, ha->rsp_qid_map);
mutex_unlock(&ha->vport_lock);
}
kfree(rsp);
}
int
qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
{
int ret = QLA_SUCCESS;
if (req && vha->flags.qpairs_req_created) {
req->options |= BIT_0;
ret = qla25xx_init_req_que(vha, req);
if (ret != QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
qla25xx_free_req_que(vha, req);
}
return ret;
}
int
qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
{
int ret = QLA_SUCCESS;
if (rsp && vha->flags.qpairs_rsp_created) {
rsp->options |= BIT_0;
ret = qla25xx_init_rsp_que(vha, rsp);
if (ret != QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
qla25xx_free_rsp_que(vha, rsp);
}
return ret;
}
/* Delete all queues for a given vhost */
int
qla25xx_delete_queues(struct scsi_qla_host *vha)
{
int cnt, ret = 0;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct qla_hw_data *ha = vha->hw;
struct qla_qpair *qpair, *tqpair;
if (ql2xmqsupport || ql2xnvmeenable) {
list_for_each_entry_safe(qpair, tqpair, &vha->qp_list,
qp_list_elem)
qla2xxx_delete_qpair(vha, qpair);
} else {
/* Delete request queues */
for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
req = ha->req_q_map[cnt];
if (req && test_bit(cnt, ha->req_qid_map)) {
ret = qla25xx_delete_req_que(vha, req);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x00ea,
"Couldn't delete req que %d.\n",
req->id);
return ret;
}
}
}
/* Delete response queues */
for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
rsp = ha->rsp_q_map[cnt];
if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
ret = qla25xx_delete_rsp_que(vha, rsp);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x00eb,
"Couldn't delete rsp que %d.\n",
rsp->id);
return ret;
}
}
}
}
return ret;
}
int
qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp)
{
int ret = 0;
struct req_que *req = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
uint16_t que_id = 0;
device_reg_t *reg;
uint32_t cnt;
req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
if (req == NULL) {
ql_log(ql_log_fatal, base_vha, 0x00d9,
"Failed to allocate memory for request queue.\n");
goto failed;
}
req->length = REQUEST_ENTRY_CNT_24XX;
req->ring = dma_alloc_coherent(&ha->pdev->dev,
(req->length + 1) * sizeof(request_t),
&req->dma, GFP_KERNEL);
if (req->ring == NULL) {
ql_log(ql_log_fatal, base_vha, 0x00da,
"Failed to allocate memory for request_ring.\n");
goto que_failed;
}
ret = qla2x00_alloc_outstanding_cmds(ha, req);
if (ret != QLA_SUCCESS)
goto que_failed;
mutex_lock(&ha->mq_lock);
que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
if (que_id >= ha->max_req_queues) {
mutex_unlock(&ha->mq_lock);
ql_log(ql_log_warn, base_vha, 0x00db,
"No resources to create additional request queue.\n");
goto que_failed;
}
set_bit(que_id, ha->req_qid_map);
ha->req_q_map[que_id] = req;
req->rid = rid;
req->vp_idx = vp_idx;
req->qos = qos;
ql_dbg(ql_dbg_multiq, base_vha, 0xc002,
"queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
que_id, req->rid, req->vp_idx, req->qos);
ql_dbg(ql_dbg_init, base_vha, 0x00dc,
"queue_id=%d rid=%d vp_idx=%d qos=%d.\n",
que_id, req->rid, req->vp_idx, req->qos);
if (rsp_que < 0)
req->rsp = NULL;
else
req->rsp = ha->rsp_q_map[rsp_que];
/* Use alternate PCI bus number */
if (MSB(req->rid))
options |= BIT_4;
/* Use alternate PCI devfn */
if (LSB(req->rid))
options |= BIT_5;
req->options = options;
ql_dbg(ql_dbg_multiq, base_vha, 0xc003,
"options=0x%x.\n", req->options);
ql_dbg(ql_dbg_init, base_vha, 0x00dd,
"options=0x%x.\n", req->options);
for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
req->outstanding_cmds[cnt] = NULL;
req->current_outstanding_cmd = 1;
req->ring_ptr = req->ring;
req->ring_index = 0;
req->cnt = req->length;
req->id = que_id;
reg = ISP_QUE_REG(ha, que_id);
req->req_q_in = ®->isp25mq.req_q_in;
req->req_q_out = ®->isp25mq.req_q_out;
req->max_q_depth = ha->req_q_map[0]->max_q_depth;
req->out_ptr = (uint16_t *)(req->ring + req->length);
mutex_unlock(&ha->mq_lock);
ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
"ring_ptr=%p ring_index=%d, "
"cnt=%d id=%d max_q_depth=%d.\n",
req->ring_ptr, req->ring_index,
req->cnt, req->id, req->max_q_depth);
ql_dbg(ql_dbg_init, base_vha, 0x00de,
"ring_ptr=%p ring_index=%d, "
"cnt=%d id=%d max_q_depth=%d.\n",
req->ring_ptr, req->ring_index, req->cnt,
req->id, req->max_q_depth);
if (startqp) {
ret = qla25xx_init_req_que(base_vha, req);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_fatal, base_vha, 0x00df,
"%s failed.\n", __func__);
mutex_lock(&ha->mq_lock);
clear_bit(que_id, ha->req_qid_map);
mutex_unlock(&ha->mq_lock);
goto que_failed;
}
vha->flags.qpairs_req_created = 1;
}
return req->id;
que_failed:
qla25xx_free_req_que(base_vha, req);
failed:
return 0;
}
static void qla_do_work(struct work_struct *work)
{
unsigned long flags;
struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
struct scsi_qla_host *vha = qpair->vha;
spin_lock_irqsave(&qpair->qp_lock, flags);
qla24xx_process_response_queue(vha, qpair->rsp);
spin_unlock_irqrestore(&qpair->qp_lock, flags);
}
/* create response queue */
int
qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp)
{
int ret = 0;
struct rsp_que *rsp = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
uint16_t que_id = 0;
device_reg_t *reg;
rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
if (rsp == NULL) {
ql_log(ql_log_warn, base_vha, 0x0066,
"Failed to allocate memory for response queue.\n");
goto failed;
}
rsp->length = RESPONSE_ENTRY_CNT_MQ;
rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
(rsp->length + 1) * sizeof(response_t),
&rsp->dma, GFP_KERNEL);
if (rsp->ring == NULL) {
ql_log(ql_log_warn, base_vha, 0x00e1,
"Failed to allocate memory for response ring.\n");
goto que_failed;
}
mutex_lock(&ha->mq_lock);
que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
if (que_id >= ha->max_rsp_queues) {
mutex_unlock(&ha->mq_lock);
ql_log(ql_log_warn, base_vha, 0x00e2,
"No resources to create additional request queue.\n");
goto que_failed;
}
set_bit(que_id, ha->rsp_qid_map);
rsp->msix = qpair->msix;
ha->rsp_q_map[que_id] = rsp;
rsp->rid = rid;
rsp->vp_idx = vp_idx;
rsp->hw = ha;
ql_dbg(ql_dbg_init, base_vha, 0x00e4,
"rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
que_id, rsp->rid, rsp->vp_idx, rsp->hw);
/* Use alternate PCI bus number */
if (MSB(rsp->rid))
options |= BIT_4;
/* Use alternate PCI devfn */
if (LSB(rsp->rid))
options |= BIT_5;
/* Enable MSIX handshake mode on for uncapable adapters */
if (!IS_MSIX_NACK_CAPABLE(ha))
options |= BIT_6;
/* Set option to indicate response queue creation */
options |= BIT_1;
rsp->options = options;
rsp->id = que_id;
reg = ISP_QUE_REG(ha, que_id);
rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length);
mutex_unlock(&ha->mq_lock);
ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
"options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
rsp->options, rsp->id, rsp->rsp_q_in,
rsp->rsp_q_out);
ql_dbg(ql_dbg_init, base_vha, 0x00e5,
"options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
rsp->options, rsp->id, rsp->rsp_q_in,
rsp->rsp_q_out);
ret = qla25xx_request_irq(ha, qpair, qpair->msix,
ha->flags.disable_msix_handshake ?
QLA_MSIX_QPAIR_MULTIQ_RSP_Q : QLA_MSIX_QPAIR_MULTIQ_RSP_Q_HS);
if (ret)
goto que_failed;
if (startqp) {
ret = qla25xx_init_rsp_que(base_vha, rsp);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_fatal, base_vha, 0x00e7,
"%s failed.\n", __func__);
mutex_lock(&ha->mq_lock);
clear_bit(que_id, ha->rsp_qid_map);
mutex_unlock(&ha->mq_lock);
goto que_failed;
}
vha->flags.qpairs_rsp_created = 1;
}
rsp->req = NULL;
qla2x00_init_response_q_entries(rsp);
if (qpair->hw->wq)
INIT_WORK(&qpair->q_work, qla_do_work);
return rsp->id;
que_failed:
qla25xx_free_rsp_que(base_vha, rsp);
failed:
return 0;
}
static void qla_ctrlvp_sp_done(srb_t *sp, int res)
{
if (sp->comp)
complete(sp->comp);
/* don't free sp here. Let the caller do the free */
}
/**
* qla24xx_control_vp() - Enable a virtual port for given host
* @vha: adapter block pointer
* @cmd: command type to be sent for enable virtual port
*
* Return: qla2xxx local function return status code.
*/
int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
{
int rval = QLA_MEMORY_ALLOC_FAILED;
struct qla_hw_data *ha = vha->hw;
int vp_index = vha->vp_idx;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
DECLARE_COMPLETION_ONSTACK(comp);
srb_t *sp;
ql_dbg(ql_dbg_vport, vha, 0x10c1,
"Entered %s cmd %x index %d.\n", __func__, cmd, vp_index);
if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
return QLA_PARAMETER_ERROR;
/* ref: INIT */
sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL);
if (!sp)
return rval;
sp->type = SRB_CTRL_VP;
sp->name = "ctrl_vp";
sp->comp = ∁
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla_ctrlvp_sp_done);
sp->u.iocb_cmd.u.ctrlvp.cmd = cmd;
sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_async, vha, 0xffff,
"%s: %s Failed submission. %x.\n",
__func__, sp->name, rval);
goto done;
}
ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n",
sp->name, sp->handle);
wait_for_completion(&comp);
sp->comp = NULL;
rval = sp->rc;
switch (rval) {
case QLA_FUNCTION_TIMEOUT:
ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n",
__func__, sp->name, rval);
break;
case QLA_SUCCESS:
ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n",
__func__, sp->name);
break;
default:
ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n",
__func__, sp->name, rval);
break;
}
done:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return rval;
}
struct scsi_qla_host *qla_find_host_by_vp_idx(struct scsi_qla_host *vha, uint16_t vp_idx)
{
struct qla_hw_data *ha = vha->hw;
if (vha->vp_idx == vp_idx)
return vha;
BUG_ON(ha->vp_map == NULL);
if (likely(test_bit(vp_idx, ha->vp_idx_map)))
return ha->vp_map[vp_idx].vha;
return NULL;
}
/* vport_slock to be held by the caller */
void
qla_update_vp_map(struct scsi_qla_host *vha, int cmd)
{
void *slot;
u32 key;
int rc;
if (!vha->hw->vp_map)
return;
key = vha->d_id.b24;
switch (cmd) {
case SET_VP_IDX:
vha->hw->vp_map[vha->vp_idx].vha = vha;
break;
case SET_AL_PA:
slot = btree_lookup32(&vha->hw->host_map, key);
if (!slot) {
ql_dbg(ql_dbg_disc, vha, 0xf018,
"Save vha in host_map %p %06x\n", vha, key);
rc = btree_insert32(&vha->hw->host_map,
key, vha, GFP_ATOMIC);
if (rc)
ql_log(ql_log_info, vha, 0xd03e,
"Unable to insert s_id into host_map: %06x\n",
key);
return;
}
ql_dbg(ql_dbg_disc, vha, 0xf019,
"replace existing vha in host_map %p %06x\n", vha, key);
btree_update32(&vha->hw->host_map, key, vha);
break;
case RESET_VP_IDX:
vha->hw->vp_map[vha->vp_idx].vha = NULL;
break;
case RESET_AL_PA:
ql_dbg(ql_dbg_disc, vha, 0xf01a,
"clear vha in host_map %p %06x\n", vha, key);
slot = btree_lookup32(&vha->hw->host_map, key);
if (slot)
btree_remove32(&vha->hw->host_map, key);
vha->d_id.b24 = 0;
break;
}
}
void qla_update_host_map(struct scsi_qla_host *vha, port_id_t id)
{
if (!vha->d_id.b24) {
vha->d_id = id;
qla_update_vp_map(vha, SET_AL_PA);
} else if (vha->d_id.b24 != id.b24) {
qla_update_vp_map(vha, RESET_AL_PA);
vha->d_id = id;
qla_update_vp_map(vha, SET_AL_PA);
}
}
int qla_create_buf_pool(struct scsi_qla_host *vha, struct qla_qpair *qp)
{
int sz;
qp->buf_pool.num_bufs = qp->req->length;
sz = BITS_TO_LONGS(qp->req->length);
qp->buf_pool.buf_map = kcalloc(sz, sizeof(long), GFP_KERNEL);
if (!qp->buf_pool.buf_map) {
ql_log(ql_log_warn, vha, 0x0186,
"Failed to allocate buf_map(%zd).\n", sz * sizeof(unsigned long));
return -ENOMEM;
}
sz = qp->req->length * sizeof(void *);
qp->buf_pool.buf_array = kcalloc(qp->req->length, sizeof(void *), GFP_KERNEL);
if (!qp->buf_pool.buf_array) {
ql_log(ql_log_warn, vha, 0x0186,
"Failed to allocate buf_array(%d).\n", sz);
kfree(qp->buf_pool.buf_map);
return -ENOMEM;
}
sz = qp->req->length * sizeof(dma_addr_t);
qp->buf_pool.dma_array = kcalloc(qp->req->length, sizeof(dma_addr_t), GFP_KERNEL);
if (!qp->buf_pool.dma_array) {
ql_log(ql_log_warn, vha, 0x0186,
"Failed to allocate dma_array(%d).\n", sz);
kfree(qp->buf_pool.buf_map);
kfree(qp->buf_pool.buf_array);
return -ENOMEM;
}
set_bit(0, qp->buf_pool.buf_map);
return 0;
}
void qla_free_buf_pool(struct qla_qpair *qp)
{
int i;
struct qla_hw_data *ha = qp->vha->hw;
for (i = 0; i < qp->buf_pool.num_bufs; i++) {
if (qp->buf_pool.buf_array[i] && qp->buf_pool.dma_array[i])
dma_pool_free(ha->fcp_cmnd_dma_pool, qp->buf_pool.buf_array[i],
qp->buf_pool.dma_array[i]);
qp->buf_pool.buf_array[i] = NULL;
qp->buf_pool.dma_array[i] = 0;
}
kfree(qp->buf_pool.dma_array);
kfree(qp->buf_pool.buf_array);
kfree(qp->buf_pool.buf_map);
}
/* it is assume qp->qp_lock is held at this point */
int qla_get_buf(struct scsi_qla_host *vha, struct qla_qpair *qp, struct qla_buf_dsc *dsc)
{
u16 tag, i = 0;
void *buf;
dma_addr_t buf_dma;
struct qla_hw_data *ha = vha->hw;
dsc->tag = TAG_FREED;
again:
tag = find_first_zero_bit(qp->buf_pool.buf_map, qp->buf_pool.num_bufs);
if (tag >= qp->buf_pool.num_bufs) {
ql_dbg(ql_dbg_io, vha, 0x00e2,
"qp(%d) ran out of buf resource.\n", qp->id);
return -EIO;
}
if (tag == 0) {
set_bit(0, qp->buf_pool.buf_map);
i++;
if (i == 5) {
ql_dbg(ql_dbg_io, vha, 0x00e3,
"qp(%d) unable to get tag.\n", qp->id);
return -EIO;
}
goto again;
}
if (!qp->buf_pool.buf_array[tag]) {
buf = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, GFP_ATOMIC, &buf_dma);
if (!buf) {
ql_log(ql_log_fatal, vha, 0x13b1,
"Failed to allocate buf.\n");
return -ENOMEM;
}
dsc->buf = qp->buf_pool.buf_array[tag] = buf;
dsc->buf_dma = qp->buf_pool.dma_array[tag] = buf_dma;
qp->buf_pool.num_alloc++;
} else {
dsc->buf = qp->buf_pool.buf_array[tag];
dsc->buf_dma = qp->buf_pool.dma_array[tag];
memset(dsc->buf, 0, FCP_CMND_DMA_POOL_SIZE);
}
qp->buf_pool.num_active++;
if (qp->buf_pool.num_active > qp->buf_pool.max_used)
qp->buf_pool.max_used = qp->buf_pool.num_active;
dsc->tag = tag;
set_bit(tag, qp->buf_pool.buf_map);
return 0;
}
static void qla_trim_buf(struct qla_qpair *qp, u16 trim)
{
int i, j;
struct qla_hw_data *ha = qp->vha->hw;
if (!trim)
return;
for (i = 0; i < trim; i++) {
j = qp->buf_pool.num_alloc - 1;
if (test_bit(j, qp->buf_pool.buf_map)) {
ql_dbg(ql_dbg_io + ql_dbg_verbose, qp->vha, 0x300b,
"QP id(%d): trim active buf[%d]. Remain %d bufs\n",
qp->id, j, qp->buf_pool.num_alloc);
return;
}
if (qp->buf_pool.buf_array[j]) {
dma_pool_free(ha->fcp_cmnd_dma_pool, qp->buf_pool.buf_array[j],
qp->buf_pool.dma_array[j]);
qp->buf_pool.buf_array[j] = NULL;
qp->buf_pool.dma_array[j] = 0;
}
qp->buf_pool.num_alloc--;
if (!qp->buf_pool.num_alloc)
break;
}
ql_dbg(ql_dbg_io + ql_dbg_verbose, qp->vha, 0x3010,
"QP id(%d): trimmed %d bufs. Remain %d bufs\n",
qp->id, trim, qp->buf_pool.num_alloc);
}
static void __qla_adjust_buf(struct qla_qpair *qp)
{
u32 trim;
qp->buf_pool.take_snapshot = 0;
qp->buf_pool.prev_max = qp->buf_pool.max_used;
qp->buf_pool.max_used = qp->buf_pool.num_active;
if (qp->buf_pool.prev_max > qp->buf_pool.max_used &&
qp->buf_pool.num_alloc > qp->buf_pool.max_used) {
/* down trend */
trim = qp->buf_pool.num_alloc - qp->buf_pool.max_used;
trim = (trim * 10) / 100;
trim = trim ? trim : 1;
qla_trim_buf(qp, trim);
} else if (!qp->buf_pool.prev_max && !qp->buf_pool.max_used) {
/* 2 periods of no io */
qla_trim_buf(qp, qp->buf_pool.num_alloc);
}
}
/* it is assume qp->qp_lock is held at this point */
void qla_put_buf(struct qla_qpair *qp, struct qla_buf_dsc *dsc)
{
if (dsc->tag == TAG_FREED)
return;
lockdep_assert_held(qp->qp_lock_ptr);
clear_bit(dsc->tag, qp->buf_pool.buf_map);
qp->buf_pool.num_active--;
dsc->tag = TAG_FREED;
if (qp->buf_pool.take_snapshot)
__qla_adjust_buf(qp);
}
#define EXPIRE (60 * HZ)
void qla_adjust_buf(struct scsi_qla_host *vha)
{
unsigned long flags;
int i;
struct qla_qpair *qp;
if (vha->vp_idx)
return;
if (!vha->buf_expired) {
vha->buf_expired = jiffies + EXPIRE;
return;
}
if (time_before(jiffies, vha->buf_expired))
return;
vha->buf_expired = jiffies + EXPIRE;
for (i = 0; i < vha->hw->num_qpairs; i++) {
qp = vha->hw->queue_pair_map[i];
if (!qp)
continue;
if (!qp->buf_pool.num_alloc)
continue;
if (qp->buf_pool.take_snapshot) {
/* no io has gone through in the last EXPIRE period */
spin_lock_irqsave(qp->qp_lock_ptr, flags);
__qla_adjust_buf(qp);
spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
} else {
qp->buf_pool.take_snapshot = 1;
}
}
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_mid.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include <linux/debugfs.h>
#include <linux/seq_file.h>
static struct dentry *qla2x00_dfs_root;
static atomic_t qla2x00_dfs_root_count;
#define QLA_DFS_RPORT_DEVLOSS_TMO 1
static int
qla_dfs_rport_get(struct fc_port *fp, int attr_id, u64 *val)
{
switch (attr_id) {
case QLA_DFS_RPORT_DEVLOSS_TMO:
/* Only supported for FC-NVMe devices that are registered. */
if (!(fp->nvme_flag & NVME_FLAG_REGISTERED))
return -EIO;
*val = fp->nvme_remote_port->dev_loss_tmo;
break;
default:
return -EINVAL;
}
return 0;
}
static int
qla_dfs_rport_set(struct fc_port *fp, int attr_id, u64 val)
{
switch (attr_id) {
case QLA_DFS_RPORT_DEVLOSS_TMO:
/* Only supported for FC-NVMe devices that are registered. */
if (!(fp->nvme_flag & NVME_FLAG_REGISTERED))
return -EIO;
#if (IS_ENABLED(CONFIG_NVME_FC))
return nvme_fc_set_remoteport_devloss(fp->nvme_remote_port,
val);
#else /* CONFIG_NVME_FC */
return -EINVAL;
#endif /* CONFIG_NVME_FC */
default:
return -EINVAL;
}
return 0;
}
#define DEFINE_QLA_DFS_RPORT_RW_ATTR(_attr_id, _attr) \
static int qla_dfs_rport_##_attr##_get(void *data, u64 *val) \
{ \
struct fc_port *fp = data; \
return qla_dfs_rport_get(fp, _attr_id, val); \
} \
static int qla_dfs_rport_##_attr##_set(void *data, u64 val) \
{ \
struct fc_port *fp = data; \
return qla_dfs_rport_set(fp, _attr_id, val); \
} \
DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_##_attr##_fops, \
qla_dfs_rport_##_attr##_get, \
qla_dfs_rport_##_attr##_set, "%llu\n")
/*
* Wrapper for getting fc_port fields.
*
* _attr : Attribute name.
* _get_val : Accessor macro to retrieve the value.
*/
#define DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val) \
static int qla_dfs_rport_field_##_attr##_get(void *data, u64 *val) \
{ \
struct fc_port *fp = data; \
*val = _get_val; \
return 0; \
} \
DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_field_##_attr##_fops, \
qla_dfs_rport_field_##_attr##_get, \
NULL, "%llu\n")
#define DEFINE_QLA_DFS_RPORT_ACCESS(_attr, _get_val) \
DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val)
#define DEFINE_QLA_DFS_RPORT_FIELD(_attr) \
DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, fp->_attr)
DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo);
DEFINE_QLA_DFS_RPORT_FIELD(disc_state);
DEFINE_QLA_DFS_RPORT_FIELD(scan_state);
DEFINE_QLA_DFS_RPORT_FIELD(fw_login_state);
DEFINE_QLA_DFS_RPORT_FIELD(login_pause);
DEFINE_QLA_DFS_RPORT_FIELD(flags);
DEFINE_QLA_DFS_RPORT_FIELD(nvme_flag);
DEFINE_QLA_DFS_RPORT_FIELD(last_rscn_gen);
DEFINE_QLA_DFS_RPORT_FIELD(rscn_gen);
DEFINE_QLA_DFS_RPORT_FIELD(login_gen);
DEFINE_QLA_DFS_RPORT_FIELD(loop_id);
DEFINE_QLA_DFS_RPORT_FIELD_GET(port_id, fp->d_id.b24);
DEFINE_QLA_DFS_RPORT_FIELD_GET(sess_kref, kref_read(&fp->sess_kref));
void
qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp)
{
char wwn[32];
#define QLA_CREATE_RPORT_FIELD_ATTR(_attr) \
debugfs_create_file(#_attr, 0400, fp->dfs_rport_dir, \
fp, &qla_dfs_rport_field_##_attr##_fops)
if (!vha->dfs_rport_root || fp->dfs_rport_dir)
return;
sprintf(wwn, "pn-%016llx", wwn_to_u64(fp->port_name));
fp->dfs_rport_dir = debugfs_create_dir(wwn, vha->dfs_rport_root);
if (IS_ERR(fp->dfs_rport_dir))
return;
if (NVME_TARGET(vha->hw, fp))
debugfs_create_file("dev_loss_tmo", 0600, fp->dfs_rport_dir,
fp, &qla_dfs_rport_dev_loss_tmo_fops);
QLA_CREATE_RPORT_FIELD_ATTR(disc_state);
QLA_CREATE_RPORT_FIELD_ATTR(scan_state);
QLA_CREATE_RPORT_FIELD_ATTR(fw_login_state);
QLA_CREATE_RPORT_FIELD_ATTR(login_pause);
QLA_CREATE_RPORT_FIELD_ATTR(flags);
QLA_CREATE_RPORT_FIELD_ATTR(nvme_flag);
QLA_CREATE_RPORT_FIELD_ATTR(last_rscn_gen);
QLA_CREATE_RPORT_FIELD_ATTR(rscn_gen);
QLA_CREATE_RPORT_FIELD_ATTR(login_gen);
QLA_CREATE_RPORT_FIELD_ATTR(loop_id);
QLA_CREATE_RPORT_FIELD_ATTR(port_id);
QLA_CREATE_RPORT_FIELD_ATTR(sess_kref);
}
void
qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp)
{
if (!vha->dfs_rport_root || !fp->dfs_rport_dir)
return;
debugfs_remove_recursive(fp->dfs_rport_dir);
fp->dfs_rport_dir = NULL;
}
static int
qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused)
{
scsi_qla_host_t *vha = s->private;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
struct fc_port *sess = NULL;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
seq_printf(s, "%s\n", vha->host_str);
if (tgt) {
seq_puts(s, "Port ID Port Name Handle\n");
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
list_for_each_entry(sess, &vha->vp_fcports, list)
seq_printf(s, "%02x:%02x:%02x %8phC %d\n",
sess->d_id.b.domain, sess->d_id.b.area,
sess->d_id.b.al_pa, sess->port_name,
sess->loop_id);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
return 0;
}
DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_sess);
static int
qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused)
{
scsi_qla_host_t *vha = s->private;
struct qla_hw_data *ha = vha->hw;
struct gid_list_info *gid_list;
dma_addr_t gid_list_dma;
fc_port_t fc_port;
char *id_iter;
int rc, i;
uint16_t entries, loop_id;
seq_printf(s, "%s\n", vha->host_str);
gid_list = dma_alloc_coherent(&ha->pdev->dev,
qla2x00_gid_list_size(ha),
&gid_list_dma, GFP_KERNEL);
if (!gid_list) {
ql_dbg(ql_dbg_user, vha, 0x7018,
"DMA allocation failed for %u\n",
qla2x00_gid_list_size(ha));
return 0;
}
rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma,
&entries);
if (rc != QLA_SUCCESS)
goto out_free_id_list;
id_iter = (char *)gid_list;
seq_puts(s, "Port Name Port ID Loop ID\n");
for (i = 0; i < entries; i++) {
struct gid_list_info *gid =
(struct gid_list_info *)id_iter;
loop_id = le16_to_cpu(gid->loop_id);
memset(&fc_port, 0, sizeof(fc_port_t));
fc_port.loop_id = loop_id;
rc = qla24xx_gpdb_wait(vha, &fc_port, 0);
seq_printf(s, "%8phC %02x%02x%02x %d\n",
fc_port.port_name, fc_port.d_id.b.domain,
fc_port.d_id.b.area, fc_port.d_id.b.al_pa,
fc_port.loop_id);
id_iter += ha->gid_list_info_size;
}
out_free_id_list:
dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
gid_list, gid_list_dma);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_port_database);
static int
qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
{
struct scsi_qla_host *vha = s->private;
uint16_t mb[MAX_IOCB_MB_REG];
int rc;
struct qla_hw_data *ha = vha->hw;
u16 iocbs_used, i, exch_used;
rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG);
if (rc != QLA_SUCCESS) {
seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]);
} else {
seq_puts(s, "FW Resource count\n\n");
seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]);
seq_printf(s, "Current TGT exchg count[%d]\n", mb[2]);
seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[3]);
seq_printf(s, "Original Initiator Exchange count[%d]\n", mb[6]);
seq_printf(s, "Current IOCB count[%d]\n", mb[7]);
seq_printf(s, "Original IOCB count[%d]\n", mb[10]);
seq_printf(s, "MAX VP count[%d]\n", mb[11]);
seq_printf(s, "MAX FCF count[%d]\n", mb[12]);
seq_printf(s, "Current free pageable XCB buffer cnt[%d]\n",
mb[20]);
seq_printf(s, "Original Initiator fast XCB buffer cnt[%d]\n",
mb[21]);
seq_printf(s, "Current free Initiator fast XCB buffer cnt[%d]\n",
mb[22]);
seq_printf(s, "Original Target fast XCB buffer cnt[%d]\n",
mb[23]);
}
if (ql2xenforce_iocb_limit) {
/* lock is not require. It's an estimate. */
iocbs_used = ha->base_qpair->fwres.iocbs_used;
exch_used = ha->base_qpair->fwres.exch_used;
for (i = 0; i < ha->max_qpairs; i++) {
if (ha->queue_pair_map[i]) {
iocbs_used += ha->queue_pair_map[i]->fwres.iocbs_used;
exch_used += ha->queue_pair_map[i]->fwres.exch_used;
}
}
seq_printf(s, "Driver: estimate iocb used [%d] high water limit [%d]\n",
iocbs_used, ha->base_qpair->fwres.iocbs_limit);
seq_printf(s, "estimate exchange used[%d] high water limit [%d] n",
exch_used, ha->base_qpair->fwres.exch_limit);
if (ql2xenforce_iocb_limit == 2) {
iocbs_used = atomic_read(&ha->fwres.iocb_used);
exch_used = atomic_read(&ha->fwres.exch_used);
seq_printf(s, " estimate iocb2 used [%d] high water limit [%d]\n",
iocbs_used, ha->fwres.iocb_limit);
seq_printf(s, " estimate exchange2 used[%d] high water limit [%d] \n",
exch_used, ha->fwres.exch_limit);
}
}
return 0;
}
DEFINE_SHOW_ATTRIBUTE(qla_dfs_fw_resource_cnt);
static int
qla_dfs_tgt_counters_show(struct seq_file *s, void *unused)
{
struct scsi_qla_host *vha = s->private;
struct qla_qpair *qpair = vha->hw->base_qpair;
uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio,
core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd,
num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent;
u16 i;
fc_port_t *fcport = NULL;
if (qla2x00_chip_is_down(vha))
return 0;
qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd;
core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf;
qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio;
core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status;
qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio;
core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd;
num_q_full_sent = qpair->tgt_counters.num_q_full_sent;
num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed;
num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent;
for (i = 0; i < vha->hw->max_qpairs; i++) {
qpair = vha->hw->queue_pair_map[i];
if (!qpair)
continue;
qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd;
core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf;
qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio;
core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status;
qla_core_ret_sta_ctio +=
qpair->tgt_counters.qla_core_ret_sta_ctio;
core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd;
num_q_full_sent += qpair->tgt_counters.num_q_full_sent;
num_alloc_iocb_failed +=
qpair->tgt_counters.num_alloc_iocb_failed;
num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent;
}
seq_puts(s, "Target Counters\n");
seq_printf(s, "qla_core_sbt_cmd = %lld\n",
qla_core_sbt_cmd);
seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
qla_core_ret_sta_ctio);
seq_printf(s, "qla_core_ret_ctio = %lld\n",
qla_core_ret_ctio);
seq_printf(s, "core_qla_que_buf = %lld\n",
core_qla_que_buf);
seq_printf(s, "core_qla_snd_status = %lld\n",
core_qla_snd_status);
seq_printf(s, "core_qla_free_cmd = %lld\n",
core_qla_free_cmd);
seq_printf(s, "num alloc iocb failed = %lld\n",
num_alloc_iocb_failed);
seq_printf(s, "num term exchange sent = %lld\n",
num_term_xchg_sent);
seq_printf(s, "num Q full sent = %lld\n",
num_q_full_sent);
/* DIF stats */
seq_printf(s, "DIF Inp Bytes = %lld\n",
vha->qla_stats.qla_dif_stats.dif_input_bytes);
seq_printf(s, "DIF Outp Bytes = %lld\n",
vha->qla_stats.qla_dif_stats.dif_output_bytes);
seq_printf(s, "DIF Inp Req = %lld\n",
vha->qla_stats.qla_dif_stats.dif_input_requests);
seq_printf(s, "DIF Outp Req = %lld\n",
vha->qla_stats.qla_dif_stats.dif_output_requests);
seq_printf(s, "DIF Guard err = %d\n",
vha->qla_stats.qla_dif_stats.dif_guard_err);
seq_printf(s, "DIF Ref tag err = %d\n",
vha->qla_stats.qla_dif_stats.dif_ref_tag_err);
seq_printf(s, "DIF App tag err = %d\n",
vha->qla_stats.qla_dif_stats.dif_app_tag_err);
seq_puts(s, "\n");
seq_puts(s, "Initiator Error Counters\n");
seq_printf(s, "HW Error Count = %14lld\n",
vha->hw_err_cnt);
seq_printf(s, "Link Down Count = %14lld\n",
vha->short_link_down_cnt);
seq_printf(s, "Interface Err Count = %14lld\n",
vha->interface_err_cnt);
seq_printf(s, "Cmd Timeout Count = %14lld\n",
vha->cmd_timeout_cnt);
seq_printf(s, "Reset Count = %14lld\n",
vha->reset_cmd_err_cnt);
seq_puts(s, "\n");
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (!fcport->rport)
continue;
seq_printf(s, "Target Num = %7d Link Down Count = %14lld\n",
fcport->rport->number, fcport->tgt_short_link_down_cnt);
}
seq_puts(s, "\n");
return 0;
}
DEFINE_SHOW_ATTRIBUTE(qla_dfs_tgt_counters);
static int
qla2x00_dfs_fce_show(struct seq_file *s, void *unused)
{
scsi_qla_host_t *vha = s->private;
uint32_t cnt;
uint32_t *fce;
uint64_t fce_start;
struct qla_hw_data *ha = vha->hw;
mutex_lock(&ha->fce_mutex);
seq_puts(s, "FCE Trace Buffer\n");
seq_printf(s, "In Pointer = %llx\n\n", (unsigned long long)ha->fce_wr);
seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma);
seq_puts(s, "FCE Enable Registers\n");
seq_printf(s, "%08x %08x %08x %08x %08x %08x\n",
ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4],
ha->fce_mb[5], ha->fce_mb[6]);
fce = (uint32_t *) ha->fce;
fce_start = (unsigned long long) ha->fce_dma;
for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) {
if (cnt % 8 == 0)
seq_printf(s, "\n%llx: ",
(unsigned long long)((cnt * 4) + fce_start));
else
seq_putc(s, ' ');
seq_printf(s, "%08x", *fce++);
}
seq_puts(s, "\nEnd\n");
mutex_unlock(&ha->fce_mutex);
return 0;
}
static int
qla2x00_dfs_fce_open(struct inode *inode, struct file *file)
{
scsi_qla_host_t *vha = inode->i_private;
struct qla_hw_data *ha = vha->hw;
int rval;
if (!ha->flags.fce_enabled)
goto out;
mutex_lock(&ha->fce_mutex);
/* Pause tracing to flush FCE buffers. */
rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd);
if (rval)
ql_dbg(ql_dbg_user, vha, 0x705c,
"DebugFS: Unable to disable FCE (%d).\n", rval);
ha->flags.fce_enabled = 0;
mutex_unlock(&ha->fce_mutex);
out:
return single_open(file, qla2x00_dfs_fce_show, vha);
}
static int
qla2x00_dfs_fce_release(struct inode *inode, struct file *file)
{
scsi_qla_host_t *vha = inode->i_private;
struct qla_hw_data *ha = vha->hw;
int rval;
if (ha->flags.fce_enabled)
goto out;
mutex_lock(&ha->fce_mutex);
/* Re-enable FCE tracing. */
ha->flags.fce_enabled = 1;
memset(ha->fce, 0, fce_calc_size(ha->fce_bufs));
rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs,
ha->fce_mb, &ha->fce_bufs);
if (rval) {
ql_dbg(ql_dbg_user, vha, 0x700d,
"DebugFS: Unable to reinitialize FCE (%d).\n", rval);
ha->flags.fce_enabled = 0;
}
mutex_unlock(&ha->fce_mutex);
out:
return single_release(inode, file);
}
static const struct file_operations dfs_fce_ops = {
.open = qla2x00_dfs_fce_open,
.read = seq_read,
.llseek = seq_lseek,
.release = qla2x00_dfs_fce_release,
};
static int
qla_dfs_naqp_show(struct seq_file *s, void *unused)
{
struct scsi_qla_host *vha = s->private;
struct qla_hw_data *ha = vha->hw;
seq_printf(s, "%d\n", ha->tgt.num_act_qpairs);
return 0;
}
/*
* Helper macros for setting up debugfs entries.
* _name: The name of the debugfs entry
* _ctx_struct: The context that was passed when creating the debugfs file
*
* QLA_DFS_SETUP_RD could be used when there is only a show function.
* - show function take the name qla_dfs_<sysfs-name>_show
*
* QLA_DFS_SETUP_RW could be used when there are both show and write functions.
* - show function take the name qla_dfs_<sysfs-name>_show
* - write function take the name qla_dfs_<sysfs-name>_write
*
* To have a new debugfs entry, do:
* 1. Create a "struct dentry *" in the appropriate structure in the format
* dfs_<sysfs-name>
* 2. Setup debugfs entries using QLA_DFS_SETUP_RD / QLA_DFS_SETUP_RW
* 3. Create debugfs file in qla2x00_dfs_setup() using QLA_DFS_CREATE_FILE
* or QLA_DFS_ROOT_CREATE_FILE
* 4. Remove debugfs file in qla2x00_dfs_remove() using QLA_DFS_REMOVE_FILE
* or QLA_DFS_ROOT_REMOVE_FILE
*
* Example for creating "TEST" sysfs file:
* 1. struct qla_hw_data { ... struct dentry *dfs_TEST; }
* 2. QLA_DFS_SETUP_RD(TEST, scsi_qla_host_t);
* 3. In qla2x00_dfs_setup():
* QLA_DFS_CREATE_FILE(ha, TEST, 0600, ha->dfs_dir, vha);
* 4. In qla2x00_dfs_remove():
* QLA_DFS_REMOVE_FILE(ha, TEST);
*/
#define QLA_DFS_SETUP_RD(_name, _ctx_struct) \
static int \
qla_dfs_##_name##_open(struct inode *inode, struct file *file) \
{ \
_ctx_struct *__ctx = inode->i_private; \
\
return single_open(file, qla_dfs_##_name##_show, __ctx); \
} \
\
static const struct file_operations qla_dfs_##_name##_ops = { \
.open = qla_dfs_##_name##_open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
};
#define QLA_DFS_SETUP_RW(_name, _ctx_struct) \
static int \
qla_dfs_##_name##_open(struct inode *inode, struct file *file) \
{ \
_ctx_struct *__ctx = inode->i_private; \
\
return single_open(file, qla_dfs_##_name##_show, __ctx); \
} \
\
static const struct file_operations qla_dfs_##_name##_ops = { \
.open = qla_dfs_##_name##_open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
.write = qla_dfs_##_name##_write, \
};
#define QLA_DFS_ROOT_CREATE_FILE(_name, _perm, _ctx) \
do { \
if (!qla_dfs_##_name) \
qla_dfs_##_name = debugfs_create_file(#_name, \
_perm, qla2x00_dfs_root, _ctx, \
&qla_dfs_##_name##_ops); \
} while (0)
#define QLA_DFS_ROOT_REMOVE_FILE(_name) \
do { \
if (qla_dfs_##_name) { \
debugfs_remove(qla_dfs_##_name); \
qla_dfs_##_name = NULL; \
} \
} while (0)
#define QLA_DFS_CREATE_FILE(_struct, _name, _perm, _parent, _ctx) \
do { \
(_struct)->dfs_##_name = debugfs_create_file(#_name, \
_perm, _parent, _ctx, \
&qla_dfs_##_name##_ops) \
} while (0)
#define QLA_DFS_REMOVE_FILE(_struct, _name) \
do { \
if ((_struct)->dfs_##_name) { \
debugfs_remove((_struct)->dfs_##_name); \
(_struct)->dfs_##_name = NULL; \
} \
} while (0)
static int
qla_dfs_naqp_open(struct inode *inode, struct file *file)
{
struct scsi_qla_host *vha = inode->i_private;
return single_open(file, qla_dfs_naqp_show, vha);
}
static ssize_t
qla_dfs_naqp_write(struct file *file, const char __user *buffer,
size_t count, loff_t *pos)
{
struct seq_file *s = file->private_data;
struct scsi_qla_host *vha = s->private;
struct qla_hw_data *ha = vha->hw;
char *buf;
int rc = 0;
unsigned long num_act_qp;
if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))) {
pr_err("host%ld: this adapter does not support Multi Q.",
vha->host_no);
return -EINVAL;
}
if (!vha->flags.qpairs_available) {
pr_err("host%ld: Driver is not setup with Multi Q.",
vha->host_no);
return -EINVAL;
}
buf = memdup_user_nul(buffer, count);
if (IS_ERR(buf)) {
pr_err("host%ld: fail to copy user buffer.",
vha->host_no);
return PTR_ERR(buf);
}
num_act_qp = simple_strtoul(buf, NULL, 0);
if (num_act_qp >= vha->hw->max_qpairs) {
pr_err("User set invalid number of qpairs %lu. Max = %d",
num_act_qp, vha->hw->max_qpairs);
rc = -EINVAL;
goto out_free;
}
if (num_act_qp != ha->tgt.num_act_qpairs) {
ha->tgt.num_act_qpairs = num_act_qp;
qlt_clr_qp_table(vha);
}
rc = count;
out_free:
kfree(buf);
return rc;
}
static const struct file_operations dfs_naqp_ops = {
.open = qla_dfs_naqp_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = qla_dfs_naqp_write,
};
int
qla2x00_dfs_setup(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
goto out;
if (!ha->fce)
goto out;
if (qla2x00_dfs_root)
goto create_dir;
atomic_set(&qla2x00_dfs_root_count, 0);
qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL);
create_dir:
if (ha->dfs_dir)
goto create_nodes;
mutex_init(&ha->fce_mutex);
ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root);
atomic_inc(&qla2x00_dfs_root_count);
create_nodes:
ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count",
S_IRUSR, ha->dfs_dir, vha, &qla_dfs_fw_resource_cnt_fops);
ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
ha->dfs_dir, vha, &qla_dfs_tgt_counters_fops);
ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",
S_IRUSR, ha->dfs_dir, vha, &qla2x00_dfs_tgt_port_database_fops);
ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
&dfs_fce_ops);
ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess",
S_IRUSR, ha->dfs_dir, vha, &qla2x00_dfs_tgt_sess_fops);
if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha)) {
ha->tgt.dfs_naqp = debugfs_create_file("naqp",
0400, ha->dfs_dir, vha, &dfs_naqp_ops);
if (IS_ERR(ha->tgt.dfs_naqp)) {
ql_log(ql_log_warn, vha, 0xd011,
"Unable to create debugFS naqp node.\n");
goto out;
}
}
vha->dfs_rport_root = debugfs_create_dir("rports", ha->dfs_dir);
if (IS_ERR(vha->dfs_rport_root)) {
ql_log(ql_log_warn, vha, 0xd012,
"Unable to create debugFS rports node.\n");
goto out;
}
out:
return 0;
}
int
qla2x00_dfs_remove(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (ha->tgt.dfs_naqp) {
debugfs_remove(ha->tgt.dfs_naqp);
ha->tgt.dfs_naqp = NULL;
}
if (ha->tgt.dfs_tgt_sess) {
debugfs_remove(ha->tgt.dfs_tgt_sess);
ha->tgt.dfs_tgt_sess = NULL;
}
if (ha->tgt.dfs_tgt_port_database) {
debugfs_remove(ha->tgt.dfs_tgt_port_database);
ha->tgt.dfs_tgt_port_database = NULL;
}
if (ha->dfs_fw_resource_cnt) {
debugfs_remove(ha->dfs_fw_resource_cnt);
ha->dfs_fw_resource_cnt = NULL;
}
if (ha->dfs_tgt_counters) {
debugfs_remove(ha->dfs_tgt_counters);
ha->dfs_tgt_counters = NULL;
}
if (ha->dfs_fce) {
debugfs_remove(ha->dfs_fce);
ha->dfs_fce = NULL;
}
if (vha->dfs_rport_root) {
debugfs_remove_recursive(vha->dfs_rport_root);
vha->dfs_rport_root = NULL;
}
if (ha->dfs_dir) {
debugfs_remove(ha->dfs_dir);
ha->dfs_dir = NULL;
atomic_dec(&qla2x00_dfs_root_count);
}
if (atomic_read(&qla2x00_dfs_root_count) == 0 &&
qla2x00_dfs_root) {
debugfs_remove(qla2x00_dfs_root);
qla2x00_dfs_root = NULL;
}
return 0;
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_dfs.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_target.h"
#include <linux/delay.h>
#include <linux/gfp.h>
#ifdef CONFIG_PPC
#define IS_PPCARCH true
#else
#define IS_PPCARCH false
#endif
static struct mb_cmd_name {
uint16_t cmd;
const char *str;
} mb_str[] = {
{MBC_GET_PORT_DATABASE, "GPDB"},
{MBC_GET_ID_LIST, "GIDList"},
{MBC_GET_LINK_PRIV_STATS, "Stats"},
{MBC_GET_RESOURCE_COUNTS, "ResCnt"},
};
static const char *mb_to_str(uint16_t cmd)
{
int i;
struct mb_cmd_name *e;
for (i = 0; i < ARRAY_SIZE(mb_str); i++) {
e = mb_str + i;
if (cmd == e->cmd)
return e->str;
}
return "unknown";
}
static struct rom_cmd {
uint16_t cmd;
} rom_cmds[] = {
{ MBC_LOAD_RAM },
{ MBC_EXECUTE_FIRMWARE },
{ MBC_READ_RAM_WORD },
{ MBC_MAILBOX_REGISTER_TEST },
{ MBC_VERIFY_CHECKSUM },
{ MBC_GET_FIRMWARE_VERSION },
{ MBC_LOAD_RISC_RAM },
{ MBC_DUMP_RISC_RAM },
{ MBC_LOAD_RISC_RAM_EXTENDED },
{ MBC_DUMP_RISC_RAM_EXTENDED },
{ MBC_WRITE_RAM_WORD_EXTENDED },
{ MBC_READ_RAM_EXTENDED },
{ MBC_GET_RESOURCE_COUNTS },
{ MBC_SET_FIRMWARE_OPTION },
{ MBC_MID_INITIALIZE_FIRMWARE },
{ MBC_GET_FIRMWARE_STATE },
{ MBC_GET_MEM_OFFLOAD_CNTRL_STAT },
{ MBC_GET_RETRY_COUNT },
{ MBC_TRACE_CONTROL },
{ MBC_INITIALIZE_MULTIQ },
{ MBC_IOCB_COMMAND_A64 },
{ MBC_GET_ADAPTER_LOOP_ID },
{ MBC_READ_SFP },
{ MBC_SET_RNID_PARAMS },
{ MBC_GET_RNID_PARAMS },
{ MBC_GET_SET_ZIO_THRESHOLD },
};
static int is_rom_cmd(uint16_t cmd)
{
int i;
struct rom_cmd *wc;
for (i = 0; i < ARRAY_SIZE(rom_cmds); i++) {
wc = rom_cmds + i;
if (wc->cmd == cmd)
return 1;
}
return 0;
}
/*
* qla2x00_mailbox_command
* Issue mailbox command and waits for completion.
*
* Input:
* ha = adapter block pointer.
* mcp = driver internal mbx struct pointer.
*
* Output:
* mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
*
* Returns:
* 0 : QLA_SUCCESS = cmd performed success
* 1 : QLA_FUNCTION_FAILED (error encountered)
* 6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
*
* Context:
* Kernel context.
*/
static int
qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
{
int rval, i;
unsigned long flags = 0;
device_reg_t *reg;
uint8_t abort_active, eeh_delay;
uint8_t io_lock_on;
uint16_t command = 0;
uint16_t *iptr;
__le16 __iomem *optr;
uint32_t cnt;
uint32_t mboxes;
unsigned long wait_time;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
u32 chip_reset;
ql_dbg(ql_dbg_mbx, vha, 0x1000, "Entered %s.\n", __func__);
if (ha->pdev->error_state == pci_channel_io_perm_failure) {
ql_log(ql_log_warn, vha, 0x1001,
"PCI channel failed permanently, exiting.\n");
return QLA_FUNCTION_TIMEOUT;
}
if (vha->device_flags & DFLG_DEV_FAILED) {
ql_log(ql_log_warn, vha, 0x1002,
"Device in failed state, exiting.\n");
return QLA_FUNCTION_TIMEOUT;
}
/* if PCI error, then avoid mbx processing.*/
if (test_bit(PFLG_DISCONNECTED, &base_vha->dpc_flags) &&
test_bit(UNLOADING, &base_vha->dpc_flags)) {
ql_log(ql_log_warn, vha, 0xd04e,
"PCI error, exiting.\n");
return QLA_FUNCTION_TIMEOUT;
}
eeh_delay = 0;
reg = ha->iobase;
io_lock_on = base_vha->flags.init_done;
rval = QLA_SUCCESS;
abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
chip_reset = ha->chip_reset;
if (ha->flags.pci_channel_io_perm_failure) {
ql_log(ql_log_warn, vha, 0x1003,
"Perm failure on EEH timeout MBX, exiting.\n");
return QLA_FUNCTION_TIMEOUT;
}
if (IS_P3P_TYPE(ha) && ha->flags.isp82xx_fw_hung) {
/* Setting Link-Down error */
mcp->mb[0] = MBS_LINK_DOWN_ERROR;
ql_log(ql_log_warn, vha, 0x1004,
"FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
return QLA_FUNCTION_TIMEOUT;
}
/* check if ISP abort is active and return cmd with timeout */
if (((test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) &&
!is_rom_cmd(mcp->mb[0])) || ha->flags.eeh_busy) {
ql_log(ql_log_info, vha, 0x1005,
"Cmd 0x%x aborted with timeout since ISP Abort is pending\n",
mcp->mb[0]);
return QLA_FUNCTION_TIMEOUT;
}
atomic_inc(&ha->num_pend_mbx_stage1);
/*
* Wait for active mailbox commands to finish by waiting at most tov
* seconds. This is to serialize actual issuing of mailbox cmds during
* non ISP abort time.
*/
if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
/* Timeout occurred. Return error. */
ql_log(ql_log_warn, vha, 0xd035,
"Cmd access timeout, cmd=0x%x, Exiting.\n",
mcp->mb[0]);
vha->hw_err_cnt++;
atomic_dec(&ha->num_pend_mbx_stage1);
return QLA_FUNCTION_TIMEOUT;
}
atomic_dec(&ha->num_pend_mbx_stage1);
if (ha->flags.purge_mbox || chip_reset != ha->chip_reset ||
ha->flags.eeh_busy) {
ql_log(ql_log_warn, vha, 0xd035,
"Error detected: purge[%d] eeh[%d] cmd=0x%x, Exiting.\n",
ha->flags.purge_mbox, ha->flags.eeh_busy, mcp->mb[0]);
rval = QLA_ABORTED;
goto premature_exit;
}
/* Save mailbox command for debug */
ha->mcp = mcp;
ql_dbg(ql_dbg_mbx, vha, 0x1006,
"Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);
spin_lock_irqsave(&ha->hardware_lock, flags);
if (ha->flags.purge_mbox || chip_reset != ha->chip_reset ||
ha->flags.mbox_busy) {
rval = QLA_ABORTED;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
goto premature_exit;
}
ha->flags.mbox_busy = 1;
/* Load mailbox registers. */
if (IS_P3P_TYPE(ha))
optr = ®->isp82.mailbox_in[0];
else if (IS_FWI2_CAPABLE(ha) && !(IS_P3P_TYPE(ha)))
optr = ®->isp24.mailbox0;
else
optr = MAILBOX_REG(ha, ®->isp, 0);
iptr = mcp->mb;
command = mcp->mb[0];
mboxes = mcp->out_mb;
ql_dbg(ql_dbg_mbx, vha, 0x1111,
"Mailbox registers (OUT):\n");
for (cnt = 0; cnt < ha->mbx_count; cnt++) {
if (IS_QLA2200(ha) && cnt == 8)
optr = MAILBOX_REG(ha, ®->isp, 8);
if (mboxes & BIT_0) {
ql_dbg(ql_dbg_mbx, vha, 0x1112,
"mbox[%d]<-0x%04x\n", cnt, *iptr);
wrt_reg_word(optr, *iptr);
} else {
wrt_reg_word(optr, 0);
}
mboxes >>= 1;
optr++;
iptr++;
}
ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1117,
"I/O Address = %p.\n", optr);
/* Issue set host interrupt command to send cmd out. */
ha->flags.mbox_int = 0;
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
/* Unlock mbx registers and wait for interrupt */
ql_dbg(ql_dbg_mbx, vha, 0x100f,
"Going to unlock irq & waiting for interrupts. "
"jiffies=%lx.\n", jiffies);
/* Wait for mbx cmd completion until timeout */
atomic_inc(&ha->num_pend_mbx_stage2);
if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
if (IS_P3P_TYPE(ha))
wrt_reg_dword(®->isp82.hint, HINT_MBX_INT_PENDING);
else if (IS_FWI2_CAPABLE(ha))
wrt_reg_dword(®->isp24.hccr, HCCRX_SET_HOST_INT);
else
wrt_reg_word(®->isp.hccr, HCCR_SET_HOST_INT);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
wait_time = jiffies;
if (!wait_for_completion_timeout(&ha->mbx_intr_comp,
mcp->tov * HZ)) {
ql_dbg(ql_dbg_mbx, vha, 0x117a,
"cmd=%x Timeout.\n", command);
spin_lock_irqsave(&ha->hardware_lock, flags);
clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (chip_reset != ha->chip_reset) {
eeh_delay = ha->flags.eeh_busy ? 1 : 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock,
flags);
atomic_dec(&ha->num_pend_mbx_stage2);
rval = QLA_ABORTED;
goto premature_exit;
}
} else if (ha->flags.purge_mbox ||
chip_reset != ha->chip_reset) {
eeh_delay = ha->flags.eeh_busy ? 1 : 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
atomic_dec(&ha->num_pend_mbx_stage2);
rval = QLA_ABORTED;
goto premature_exit;
}
if (time_after(jiffies, wait_time + 5 * HZ))
ql_log(ql_log_warn, vha, 0x1015, "cmd=0x%x, waited %d msecs\n",
command, jiffies_to_msecs(jiffies - wait_time));
} else {
ql_dbg(ql_dbg_mbx, vha, 0x1011,
"Cmd=%x Polling Mode.\n", command);
if (IS_P3P_TYPE(ha)) {
if (rd_reg_dword(®->isp82.hint) &
HINT_MBX_INT_PENDING) {
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock,
flags);
atomic_dec(&ha->num_pend_mbx_stage2);
ql_dbg(ql_dbg_mbx, vha, 0x1012,
"Pending mailbox timeout, exiting.\n");
vha->hw_err_cnt++;
rval = QLA_FUNCTION_TIMEOUT;
goto premature_exit;
}
wrt_reg_dword(®->isp82.hint, HINT_MBX_INT_PENDING);
} else if (IS_FWI2_CAPABLE(ha))
wrt_reg_dword(®->isp24.hccr, HCCRX_SET_HOST_INT);
else
wrt_reg_word(®->isp.hccr, HCCR_SET_HOST_INT);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
while (!ha->flags.mbox_int) {
if (ha->flags.purge_mbox ||
chip_reset != ha->chip_reset) {
eeh_delay = ha->flags.eeh_busy ? 1 : 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock,
flags);
atomic_dec(&ha->num_pend_mbx_stage2);
rval = QLA_ABORTED;
goto premature_exit;
}
if (time_after(jiffies, wait_time))
break;
/* Check for pending interrupts. */
qla2x00_poll(ha->rsp_q_map[0]);
if (!ha->flags.mbox_int &&
!(IS_QLA2200(ha) &&
command == MBC_LOAD_RISC_RAM_EXTENDED))
msleep(10);
} /* while */
ql_dbg(ql_dbg_mbx, vha, 0x1013,
"Waited %d sec.\n",
(uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
}
atomic_dec(&ha->num_pend_mbx_stage2);
/* Check whether we timed out */
if (ha->flags.mbox_int) {
uint16_t *iptr2;
ql_dbg(ql_dbg_mbx, vha, 0x1014,
"Cmd=%x completed.\n", command);
/* Got interrupt. Clear the flag. */
ha->flags.mbox_int = 0;
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
if (IS_P3P_TYPE(ha) && ha->flags.isp82xx_fw_hung) {
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* Setting Link-Down error */
mcp->mb[0] = MBS_LINK_DOWN_ERROR;
ha->mcp = NULL;
rval = QLA_FUNCTION_FAILED;
ql_log(ql_log_warn, vha, 0xd048,
"FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
goto premature_exit;
}
if (ha->mailbox_out[0] != MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_mbx, vha, 0x11ff,
"mb_out[0] = %#x <> %#x\n", ha->mailbox_out[0],
MBS_COMMAND_COMPLETE);
rval = QLA_FUNCTION_FAILED;
}
/* Load return mailbox registers. */
iptr2 = mcp->mb;
iptr = (uint16_t *)&ha->mailbox_out[0];
mboxes = mcp->in_mb;
ql_dbg(ql_dbg_mbx, vha, 0x1113,
"Mailbox registers (IN):\n");
for (cnt = 0; cnt < ha->mbx_count; cnt++) {
if (mboxes & BIT_0) {
*iptr2 = *iptr;
ql_dbg(ql_dbg_mbx, vha, 0x1114,
"mbox[%d]->0x%04x\n", cnt, *iptr2);
}
mboxes >>= 1;
iptr2++;
iptr++;
}
} else {
uint16_t mb[8];
uint32_t ictrl, host_status, hccr;
uint16_t w;
if (IS_FWI2_CAPABLE(ha)) {
mb[0] = rd_reg_word(®->isp24.mailbox0);
mb[1] = rd_reg_word(®->isp24.mailbox1);
mb[2] = rd_reg_word(®->isp24.mailbox2);
mb[3] = rd_reg_word(®->isp24.mailbox3);
mb[7] = rd_reg_word(®->isp24.mailbox7);
ictrl = rd_reg_dword(®->isp24.ictrl);
host_status = rd_reg_dword(®->isp24.host_status);
hccr = rd_reg_dword(®->isp24.hccr);
ql_log(ql_log_warn, vha, 0xd04c,
"MBX Command timeout for cmd %x, iocontrol=%x jiffies=%lx "
"mb[0-3]=[0x%x 0x%x 0x%x 0x%x] mb7 0x%x host_status 0x%x hccr 0x%x\n",
command, ictrl, jiffies, mb[0], mb[1], mb[2], mb[3],
mb[7], host_status, hccr);
vha->hw_err_cnt++;
} else {
mb[0] = RD_MAILBOX_REG(ha, ®->isp, 0);
ictrl = rd_reg_word(®->isp.ictrl);
ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1119,
"MBX Command timeout for cmd %x, iocontrol=%x jiffies=%lx "
"mb[0]=0x%x\n", command, ictrl, jiffies, mb[0]);
vha->hw_err_cnt++;
}
ql_dump_regs(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1019);
/* Capture FW dump only, if PCI device active */
if (!pci_channel_offline(vha->hw->pdev)) {
pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
if (w == 0xffff || ictrl == 0xffffffff ||
(chip_reset != ha->chip_reset)) {
/* This is special case if there is unload
* of driver happening and if PCI device go
* into bad state due to PCI error condition
* then only PCI ERR flag would be set.
* we will do premature exit for above case.
*/
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock,
flags);
rval = QLA_FUNCTION_TIMEOUT;
goto premature_exit;
}
/* Attempt to capture firmware dump for further
* anallysis of the current formware state. we do not
* need to do this if we are intentionally generating
* a dump
*/
if (mcp->mb[0] != MBC_GEN_SYSTEM_ERROR)
qla2xxx_dump_fw(vha);
rval = QLA_FUNCTION_TIMEOUT;
}
}
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* Clean up */
ha->mcp = NULL;
if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
ql_dbg(ql_dbg_mbx, vha, 0x101a,
"Checking for additional resp interrupt.\n");
/* polling mode for non isp_abort commands. */
qla2x00_poll(ha->rsp_q_map[0]);
}
if (rval == QLA_FUNCTION_TIMEOUT &&
mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
ha->flags.eeh_busy) {
/* not in dpc. schedule it for dpc to take over. */
ql_dbg(ql_dbg_mbx, vha, 0x101b,
"Timeout, schedule isp_abort_needed.\n");
if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
!test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
if (IS_QLA82XX(ha)) {
ql_dbg(ql_dbg_mbx, vha, 0x112a,
"disabling pause transmit on port "
"0 & 1.\n");
qla82xx_wr_32(ha,
QLA82XX_CRB_NIU + 0x98,
CRB_NIU_XG_PAUSE_CTL_P0|
CRB_NIU_XG_PAUSE_CTL_P1);
}
ql_log(ql_log_info, base_vha, 0x101c,
"Mailbox cmd timeout occurred, cmd=0x%x, "
"mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
"abort.\n", command, mcp->mb[0],
ha->flags.eeh_busy);
vha->hw_err_cnt++;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
} else if (current == ha->dpc_thread) {
/* call abort directly since we are in the DPC thread */
ql_dbg(ql_dbg_mbx, vha, 0x101d,
"Timeout, calling abort_isp.\n");
if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
!test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
if (IS_QLA82XX(ha)) {
ql_dbg(ql_dbg_mbx, vha, 0x112b,
"disabling pause transmit on port "
"0 & 1.\n");
qla82xx_wr_32(ha,
QLA82XX_CRB_NIU + 0x98,
CRB_NIU_XG_PAUSE_CTL_P0|
CRB_NIU_XG_PAUSE_CTL_P1);
}
ql_log(ql_log_info, base_vha, 0x101e,
"Mailbox cmd timeout occurred, cmd=0x%x, "
"mb[0]=0x%x. Scheduling ISP abort ",
command, mcp->mb[0]);
vha->hw_err_cnt++;
set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
/* Allow next mbx cmd to come in. */
complete(&ha->mbx_cmd_comp);
if (ha->isp_ops->abort_isp(vha) &&
!ha->flags.eeh_busy) {
/* Failed. retry later. */
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
}
clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
ql_dbg(ql_dbg_mbx, vha, 0x101f,
"Finished abort_isp.\n");
goto mbx_done;
}
}
}
premature_exit:
/* Allow next mbx cmd to come in. */
complete(&ha->mbx_cmd_comp);
mbx_done:
if (rval == QLA_ABORTED) {
ql_log(ql_log_info, vha, 0xd035,
"Chip Reset in progress. Purging Mbox cmd=0x%x.\n",
mcp->mb[0]);
} else if (rval) {
if (ql2xextended_error_logging & (ql_dbg_disc|ql_dbg_mbx)) {
pr_warn("%s [%s]-%04x:%ld: **** Failed=%x", QL_MSGHDR,
dev_name(&ha->pdev->dev), 0x1020+0x800,
vha->host_no, rval);
mboxes = mcp->in_mb;
cnt = 4;
for (i = 0; i < ha->mbx_count && cnt; i++, mboxes >>= 1)
if (mboxes & BIT_0) {
printk(" mb[%u]=%x", i, mcp->mb[i]);
cnt--;
}
pr_warn(" cmd=%x ****\n", command);
}
if (IS_FWI2_CAPABLE(ha) && !(IS_P3P_TYPE(ha))) {
ql_dbg(ql_dbg_mbx, vha, 0x1198,
"host_status=%#x intr_ctrl=%#x intr_status=%#x\n",
rd_reg_dword(®->isp24.host_status),
rd_reg_dword(®->isp24.ictrl),
rd_reg_dword(®->isp24.istatus));
} else {
ql_dbg(ql_dbg_mbx, vha, 0x1206,
"ctrl_status=%#x ictrl=%#x istatus=%#x\n",
rd_reg_word(®->isp.ctrl_status),
rd_reg_word(®->isp.ictrl),
rd_reg_word(®->isp.istatus));
}
} else {
ql_dbg(ql_dbg_mbx, base_vha, 0x1021, "Done %s.\n", __func__);
}
i = 500;
while (i && eeh_delay && (ha->pci_error_state < QLA_PCI_SLOT_RESET)) {
/*
* The caller of this mailbox encounter pci error.
* Hold the thread until PCIE link reset complete to make
* sure caller does not unmap dma while recovery is
* in progress.
*/
msleep(1);
i--;
}
return rval;
}
int
qla2x00_load_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t risc_addr,
uint32_t risc_code_size)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1022,
"Entered %s.\n", __func__);
if (MSW(risc_addr) || IS_FWI2_CAPABLE(ha)) {
mcp->mb[0] = MBC_LOAD_RISC_RAM_EXTENDED;
mcp->mb[8] = MSW(risc_addr);
mcp->out_mb = MBX_8|MBX_0;
} else {
mcp->mb[0] = MBC_LOAD_RISC_RAM;
mcp->out_mb = MBX_0;
}
mcp->mb[1] = LSW(risc_addr);
mcp->mb[2] = MSW(req_dma);
mcp->mb[3] = LSW(req_dma);
mcp->mb[6] = MSW(MSD(req_dma));
mcp->mb[7] = LSW(MSD(req_dma));
mcp->out_mb |= MBX_7|MBX_6|MBX_3|MBX_2|MBX_1;
if (IS_FWI2_CAPABLE(ha)) {
mcp->mb[4] = MSW(risc_code_size);
mcp->mb[5] = LSW(risc_code_size);
mcp->out_mb |= MBX_5|MBX_4;
} else {
mcp->mb[4] = LSW(risc_code_size);
mcp->out_mb |= MBX_4;
}
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1023,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
vha->hw_err_cnt++;
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1024,
"Done %s.\n", __func__);
}
return rval;
}
#define NVME_ENABLE_FLAG BIT_3
#define EDIF_HW_SUPPORT BIT_10
/*
* qla2x00_execute_fw
* Start adapter firmware.
*
* Input:
* ha = adapter block pointer.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_execute_fw(scsi_qla_host_t *vha, uint32_t risc_addr)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
u8 semaphore = 0;
#define EXE_FW_FORCE_SEMAPHORE BIT_7
u8 retry = 5;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1025,
"Entered %s.\n", __func__);
again:
mcp->mb[0] = MBC_EXECUTE_FIRMWARE;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_0;
if (IS_FWI2_CAPABLE(ha)) {
mcp->mb[1] = MSW(risc_addr);
mcp->mb[2] = LSW(risc_addr);
mcp->mb[3] = 0;
mcp->mb[4] = 0;
mcp->mb[11] = 0;
/* Enable BPM? */
if (ha->flags.lr_detected) {
mcp->mb[4] = BIT_0;
if (IS_BPM_RANGE_CAPABLE(ha))
mcp->mb[4] |=
ha->lr_distance << LR_DIST_FW_POS;
}
if (ql2xnvmeenable && (IS_QLA27XX(ha) || IS_QLA28XX(ha)))
mcp->mb[4] |= NVME_ENABLE_FLAG;
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
struct nvram_81xx *nv = ha->nvram;
/* set minimum speed if specified in nvram */
if (nv->min_supported_speed >= 2 &&
nv->min_supported_speed <= 5) {
mcp->mb[4] |= BIT_4;
mcp->mb[11] |= nv->min_supported_speed & 0xF;
mcp->out_mb |= MBX_11;
mcp->in_mb |= BIT_5;
vha->min_supported_speed =
nv->min_supported_speed;
}
if (IS_PPCARCH)
mcp->mb[11] |= BIT_4;
}
if (ha->flags.exlogins_enabled)
mcp->mb[4] |= ENABLE_EXTENDED_LOGIN;
if (ha->flags.exchoffld_enabled)
mcp->mb[4] |= ENABLE_EXCHANGE_OFFLD;
if (semaphore)
mcp->mb[11] |= EXE_FW_FORCE_SEMAPHORE;
mcp->out_mb |= MBX_4 | MBX_3 | MBX_2 | MBX_1 | MBX_11;
mcp->in_mb |= MBX_5 | MBX_3 | MBX_2 | MBX_1;
} else {
mcp->mb[1] = LSW(risc_addr);
mcp->out_mb |= MBX_1;
if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
mcp->mb[2] = 0;
mcp->out_mb |= MBX_2;
}
}
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
if (IS_QLA28XX(ha) && rval == QLA_COMMAND_ERROR &&
mcp->mb[1] == 0x27 && retry) {
semaphore = 1;
retry--;
ql_dbg(ql_dbg_async, vha, 0x1026,
"Exe FW: force semaphore.\n");
goto again;
}
if (retry) {
retry--;
ql_dbg(ql_dbg_async, vha, 0x509d,
"Exe FW retry: mb[0]=%x retry[%d]\n", mcp->mb[0], retry);
goto again;
}
ql_dbg(ql_dbg_mbx, vha, 0x1026,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
vha->hw_err_cnt++;
return rval;
}
if (!IS_FWI2_CAPABLE(ha))
goto done;
ha->fw_ability_mask = mcp->mb[3] << 16 | mcp->mb[2];
ql_dbg(ql_dbg_mbx, vha, 0x119a,
"fw_ability_mask=%x.\n", ha->fw_ability_mask);
ql_dbg(ql_dbg_mbx, vha, 0x1027, "exchanges=%x.\n", mcp->mb[1]);
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
ha->max_supported_speed = mcp->mb[2] & (BIT_0|BIT_1);
ql_dbg(ql_dbg_mbx, vha, 0x119b, "max_supported_speed=%s.\n",
ha->max_supported_speed == 0 ? "16Gps" :
ha->max_supported_speed == 1 ? "32Gps" :
ha->max_supported_speed == 2 ? "64Gps" : "unknown");
if (vha->min_supported_speed) {
ha->min_supported_speed = mcp->mb[5] &
(BIT_0 | BIT_1 | BIT_2);
ql_dbg(ql_dbg_mbx, vha, 0x119c,
"min_supported_speed=%s.\n",
ha->min_supported_speed == 6 ? "64Gps" :
ha->min_supported_speed == 5 ? "32Gps" :
ha->min_supported_speed == 4 ? "16Gps" :
ha->min_supported_speed == 3 ? "8Gps" :
ha->min_supported_speed == 2 ? "4Gps" : "unknown");
}
}
if (IS_QLA28XX(ha) && (mcp->mb[5] & EDIF_HW_SUPPORT)) {
ha->flags.edif_hw = 1;
ql_log(ql_log_info, vha, 0xffff,
"%s: edif HW\n", __func__);
}
done:
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1028,
"Done %s.\n", __func__);
return rval;
}
/*
* qla_get_exlogin_status
* Get extended login status
* uses the memory offload control/status Mailbox
*
* Input:
* ha: adapter state pointer.
* fwopt: firmware options
*
* Returns:
* qla2x00 local function status
*
* Context:
* Kernel context.
*/
#define FETCH_XLOGINS_STAT 0x8
int
qla_get_exlogin_status(scsi_qla_host_t *vha, uint16_t *buf_sz,
uint16_t *ex_logins_cnt)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x118f,
"Entered %s\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_GET_MEM_OFFLOAD_CNTRL_STAT;
mcp->mb[1] = FETCH_XLOGINS_STAT;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_10|MBX_4|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1115, "Failed=%x.\n", rval);
} else {
*buf_sz = mcp->mb[4];
*ex_logins_cnt = mcp->mb[10];
ql_log(ql_log_info, vha, 0x1190,
"buffer size 0x%x, exchange login count=%d\n",
mcp->mb[4], mcp->mb[10]);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1116,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla_set_exlogin_mem_cfg
* set extended login memory configuration
* Mbx needs to be issues before init_cb is set
*
* Input:
* ha: adapter state pointer.
* buffer: buffer pointer
* phys_addr: physical address of buffer
* size: size of buffer
* TARGET_QUEUE_LOCK must be released
* ADAPTER_STATE_LOCK must be release
*
* Returns:
* qla2x00 local funxtion status code.
*
* Context:
* Kernel context.
*/
#define CONFIG_XLOGINS_MEM 0x9
int
qla_set_exlogin_mem_cfg(scsi_qla_host_t *vha, dma_addr_t phys_addr)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x111a,
"Entered %s.\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_GET_MEM_OFFLOAD_CNTRL_STAT;
mcp->mb[1] = CONFIG_XLOGINS_MEM;
mcp->mb[2] = MSW(phys_addr);
mcp->mb[3] = LSW(phys_addr);
mcp->mb[6] = MSW(MSD(phys_addr));
mcp->mb[7] = LSW(MSD(phys_addr));
mcp->mb[8] = MSW(ha->exlogin_size);
mcp->mb[9] = LSW(ha->exlogin_size);
mcp->out_mb = MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_11|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x111b,
"EXlogin Failed=%x. MB0=%x MB11=%x\n",
rval, mcp->mb[0], mcp->mb[11]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x118c,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla_get_exchoffld_status
* Get exchange offload status
* uses the memory offload control/status Mailbox
*
* Input:
* ha: adapter state pointer.
* fwopt: firmware options
*
* Returns:
* qla2x00 local function status
*
* Context:
* Kernel context.
*/
#define FETCH_XCHOFFLD_STAT 0x2
int
qla_get_exchoffld_status(scsi_qla_host_t *vha, uint16_t *buf_sz,
uint16_t *ex_logins_cnt)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1019,
"Entered %s\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_GET_MEM_OFFLOAD_CNTRL_STAT;
mcp->mb[1] = FETCH_XCHOFFLD_STAT;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_10|MBX_4|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1155, "Failed=%x.\n", rval);
} else {
*buf_sz = mcp->mb[4];
*ex_logins_cnt = mcp->mb[10];
ql_log(ql_log_info, vha, 0x118e,
"buffer size 0x%x, exchange offload count=%d\n",
mcp->mb[4], mcp->mb[10]);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1156,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla_set_exchoffld_mem_cfg
* Set exchange offload memory configuration
* Mbx needs to be issues before init_cb is set
*
* Input:
* ha: adapter state pointer.
* buffer: buffer pointer
* phys_addr: physical address of buffer
* size: size of buffer
* TARGET_QUEUE_LOCK must be released
* ADAPTER_STATE_LOCK must be release
*
* Returns:
* qla2x00 local funxtion status code.
*
* Context:
* Kernel context.
*/
#define CONFIG_XCHOFFLD_MEM 0x3
int
qla_set_exchoffld_mem_cfg(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1157,
"Entered %s.\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_GET_MEM_OFFLOAD_CNTRL_STAT;
mcp->mb[1] = CONFIG_XCHOFFLD_MEM;
mcp->mb[2] = MSW(ha->exchoffld_buf_dma);
mcp->mb[3] = LSW(ha->exchoffld_buf_dma);
mcp->mb[6] = MSW(MSD(ha->exchoffld_buf_dma));
mcp->mb[7] = LSW(MSD(ha->exchoffld_buf_dma));
mcp->mb[8] = MSW(ha->exchoffld_size);
mcp->mb[9] = LSW(ha->exchoffld_size);
mcp->out_mb = MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_11|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1158, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1192,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_get_fw_version
* Get firmware version.
*
* Input:
* ha: adapter state pointer.
* major: pointer for major number.
* minor: pointer for minor number.
* subminor: pointer for subminor number.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_fw_version(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1029,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_FIRMWARE_VERSION;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
if (IS_QLA81XX(vha->hw) || IS_QLA8031(ha) || IS_QLA8044(ha))
mcp->in_mb |= MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8;
if (IS_FWI2_CAPABLE(ha))
mcp->in_mb |= MBX_17|MBX_16|MBX_15;
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
mcp->in_mb |=
MBX_25|MBX_24|MBX_23|MBX_22|MBX_21|MBX_20|MBX_19|MBX_18|
MBX_14|MBX_13|MBX_11|MBX_10|MBX_9|MBX_8|MBX_7;
mcp->flags = 0;
mcp->tov = MBX_TOV_SECONDS;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS)
goto failed;
/* Return mailbox data. */
ha->fw_major_version = mcp->mb[1];
ha->fw_minor_version = mcp->mb[2];
ha->fw_subminor_version = mcp->mb[3];
ha->fw_attributes = mcp->mb[6];
if (IS_QLA2100(vha->hw) || IS_QLA2200(vha->hw))
ha->fw_memory_size = 0x1FFFF; /* Defaults to 128KB. */
else
ha->fw_memory_size = (mcp->mb[5] << 16) | mcp->mb[4];
if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
ha->mpi_version[0] = mcp->mb[10] & 0xff;
ha->mpi_version[1] = mcp->mb[11] >> 8;
ha->mpi_version[2] = mcp->mb[11] & 0xff;
ha->mpi_capabilities = (mcp->mb[12] << 16) | mcp->mb[13];
ha->phy_version[0] = mcp->mb[8] & 0xff;
ha->phy_version[1] = mcp->mb[9] >> 8;
ha->phy_version[2] = mcp->mb[9] & 0xff;
}
if (IS_FWI2_CAPABLE(ha)) {
ha->fw_attributes_h = mcp->mb[15];
ha->fw_attributes_ext[0] = mcp->mb[16];
ha->fw_attributes_ext[1] = mcp->mb[17];
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1139,
"%s: FW_attributes Upper: 0x%x, Lower: 0x%x.\n",
__func__, mcp->mb[15], mcp->mb[6]);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x112f,
"%s: Ext_FwAttributes Upper: 0x%x, Lower: 0x%x.\n",
__func__, mcp->mb[17], mcp->mb[16]);
if (ha->fw_attributes_h & 0x4)
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x118d,
"%s: Firmware supports Extended Login 0x%x\n",
__func__, ha->fw_attributes_h);
if (ha->fw_attributes_h & 0x8)
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1191,
"%s: Firmware supports Exchange Offload 0x%x\n",
__func__, ha->fw_attributes_h);
/*
* FW supports nvme and driver load parameter requested nvme.
* BIT 26 of fw_attributes indicates NVMe support.
*/
if ((ha->fw_attributes_h &
(FW_ATTR_H_NVME | FW_ATTR_H_NVME_UPDATED)) &&
ql2xnvmeenable) {
if (ha->fw_attributes_h & FW_ATTR_H_NVME_FBURST)
vha->flags.nvme_first_burst = 1;
vha->flags.nvme_enabled = 1;
ql_log(ql_log_info, vha, 0xd302,
"%s: FC-NVMe is Enabled (0x%x)\n",
__func__, ha->fw_attributes_h);
}
/* BIT_13 of Extended FW Attributes informs about NVMe2 support */
if (ha->fw_attributes_ext[0] & FW_ATTR_EXT0_NVME2) {
ql_log(ql_log_info, vha, 0xd302,
"Firmware supports NVMe2 0x%x\n",
ha->fw_attributes_ext[0]);
vha->flags.nvme2_enabled = 1;
}
if (IS_QLA28XX(ha) && ha->flags.edif_hw && ql2xsecenable &&
(ha->fw_attributes_ext[0] & FW_ATTR_EXT0_EDIF)) {
ha->flags.edif_enabled = 1;
ql_log(ql_log_info, vha, 0xffff,
"%s: edif is enabled\n", __func__);
}
}
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
ha->serdes_version[0] = mcp->mb[7] & 0xff;
ha->serdes_version[1] = mcp->mb[8] >> 8;
ha->serdes_version[2] = mcp->mb[8] & 0xff;
ha->mpi_version[0] = mcp->mb[10] & 0xff;
ha->mpi_version[1] = mcp->mb[11] >> 8;
ha->mpi_version[2] = mcp->mb[11] & 0xff;
ha->pep_version[0] = mcp->mb[13] & 0xff;
ha->pep_version[1] = mcp->mb[14] >> 8;
ha->pep_version[2] = mcp->mb[14] & 0xff;
ha->fw_shared_ram_start = (mcp->mb[19] << 16) | mcp->mb[18];
ha->fw_shared_ram_end = (mcp->mb[21] << 16) | mcp->mb[20];
ha->fw_ddr_ram_start = (mcp->mb[23] << 16) | mcp->mb[22];
ha->fw_ddr_ram_end = (mcp->mb[25] << 16) | mcp->mb[24];
if (IS_QLA28XX(ha)) {
if (mcp->mb[16] & BIT_10)
ha->flags.secure_fw = 1;
ql_log(ql_log_info, vha, 0xffff,
"Secure Flash Update in FW: %s\n",
(ha->flags.secure_fw) ? "Supported" :
"Not Supported");
}
if (ha->flags.scm_supported_a &&
(ha->fw_attributes_ext[0] & FW_ATTR_EXT0_SCM_SUPPORTED)) {
ha->flags.scm_supported_f = 1;
ha->sf_init_cb->flags |= cpu_to_le16(BIT_13);
}
ql_log(ql_log_info, vha, 0x11a3, "SCM in FW: %s\n",
(ha->flags.scm_supported_f) ? "Supported" :
"Not Supported");
if (vha->flags.nvme2_enabled) {
/* set BIT_15 of special feature control block for SLER */
ha->sf_init_cb->flags |= cpu_to_le16(BIT_15);
/* set BIT_14 of special feature control block for PI CTRL*/
ha->sf_init_cb->flags |= cpu_to_le16(BIT_14);
}
}
failed:
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x102a, "Failed=%x.\n", rval);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x102b,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_get_fw_options
* Set firmware options.
*
* Input:
* ha = adapter block pointer.
* fwopt = pointer for firmware options.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_fw_options(scsi_qla_host_t *vha, uint16_t *fwopts)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x102c,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_FIRMWARE_OPTION;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x102d, "Failed=%x.\n", rval);
} else {
fwopts[0] = mcp->mb[0];
fwopts[1] = mcp->mb[1];
fwopts[2] = mcp->mb[2];
fwopts[3] = mcp->mb[3];
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x102e,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_set_fw_options
* Set firmware options.
*
* Input:
* ha = adapter block pointer.
* fwopt = pointer for firmware options.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_set_fw_options(scsi_qla_host_t *vha, uint16_t *fwopts)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x102f,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_SET_FIRMWARE_OPTION;
mcp->mb[1] = fwopts[1];
mcp->mb[2] = fwopts[2];
mcp->mb[3] = fwopts[3];
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
if (IS_FWI2_CAPABLE(vha->hw)) {
mcp->in_mb |= MBX_1;
mcp->mb[10] = fwopts[10];
mcp->out_mb |= MBX_10;
} else {
mcp->mb[10] = fwopts[10];
mcp->mb[11] = fwopts[11];
mcp->mb[12] = 0; /* Undocumented, but used */
mcp->out_mb |= MBX_12|MBX_11|MBX_10;
}
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
fwopts[0] = mcp->mb[0];
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1030,
"Failed=%x (%x/%x).\n", rval, mcp->mb[0], mcp->mb[1]);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1031,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_mbx_reg_test
* Mailbox register wrap test.
*
* Input:
* ha = adapter block pointer.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_mbx_reg_test(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1032,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
mcp->mb[1] = 0xAAAA;
mcp->mb[2] = 0x5555;
mcp->mb[3] = 0xAA55;
mcp->mb[4] = 0x55AA;
mcp->mb[5] = 0xA5A5;
mcp->mb[6] = 0x5A5A;
mcp->mb[7] = 0x2525;
mcp->out_mb = MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval == QLA_SUCCESS) {
if (mcp->mb[1] != 0xAAAA || mcp->mb[2] != 0x5555 ||
mcp->mb[3] != 0xAA55 || mcp->mb[4] != 0x55AA)
rval = QLA_FUNCTION_FAILED;
if (mcp->mb[5] != 0xA5A5 || mcp->mb[6] != 0x5A5A ||
mcp->mb[7] != 0x2525)
rval = QLA_FUNCTION_FAILED;
}
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1033, "Failed=%x.\n", rval);
vha->hw_err_cnt++;
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1034,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_verify_checksum
* Verify firmware checksum.
*
* Input:
* ha = adapter block pointer.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_verify_checksum(scsi_qla_host_t *vha, uint32_t risc_addr)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1035,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_VERIFY_CHECKSUM;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_0;
if (IS_FWI2_CAPABLE(vha->hw)) {
mcp->mb[1] = MSW(risc_addr);
mcp->mb[2] = LSW(risc_addr);
mcp->out_mb |= MBX_2|MBX_1;
mcp->in_mb |= MBX_2|MBX_1;
} else {
mcp->mb[1] = LSW(risc_addr);
mcp->out_mb |= MBX_1;
mcp->in_mb |= MBX_1;
}
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1036,
"Failed=%x chm sum=%x.\n", rval, IS_FWI2_CAPABLE(vha->hw) ?
(mcp->mb[2] << 16) | mcp->mb[1] : mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1037,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_issue_iocb
* Issue IOCB using mailbox command
*
* Input:
* ha = adapter state pointer.
* buffer = buffer pointer.
* phys_addr = physical address of buffer.
* size = size of buffer.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_issue_iocb_timeout(scsi_qla_host_t *vha, void *buffer,
dma_addr_t phys_addr, size_t size, uint32_t tov)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!vha->hw->flags.fw_started)
return QLA_INVALID_COMMAND;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1038,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_IOCB_COMMAND_A64;
mcp->mb[1] = 0;
mcp->mb[2] = MSW(LSD(phys_addr));
mcp->mb[3] = LSW(LSD(phys_addr));
mcp->mb[6] = MSW(MSD(phys_addr));
mcp->mb[7] = LSW(MSD(phys_addr));
mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = tov;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1039, "Failed=%x.\n", rval);
} else {
sts_entry_t *sts_entry = buffer;
/* Mask reserved bits. */
sts_entry->entry_status &=
IS_FWI2_CAPABLE(vha->hw) ? RF_MASK_24XX : RF_MASK;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103a,
"Done %s (status=%x).\n", __func__,
sts_entry->entry_status);
}
return rval;
}
int
qla2x00_issue_iocb(scsi_qla_host_t *vha, void *buffer, dma_addr_t phys_addr,
size_t size)
{
return qla2x00_issue_iocb_timeout(vha, buffer, phys_addr, size,
MBX_TOV_SECONDS);
}
/*
* qla2x00_abort_command
* Abort command aborts a specified IOCB.
*
* Input:
* ha = adapter block pointer.
* sp = SB structure pointer.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_abort_command(srb_t *sp)
{
unsigned long flags = 0;
int rval;
uint32_t handle = 0;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
fc_port_t *fcport = sp->fcport;
scsi_qla_host_t *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103b,
"Entered %s.\n", __func__);
if (sp->qpair)
req = sp->qpair->req;
else
req = vha->req;
spin_lock_irqsave(&ha->hardware_lock, flags);
for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
if (req->outstanding_cmds[handle] == sp)
break;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (handle == req->num_outstanding_cmds) {
/* command not found */
return QLA_FUNCTION_FAILED;
}
mcp->mb[0] = MBC_ABORT_COMMAND;
if (HAS_EXTENDED_IDS(ha))
mcp->mb[1] = fcport->loop_id;
else
mcp->mb[1] = fcport->loop_id << 8;
mcp->mb[2] = (uint16_t)handle;
mcp->mb[3] = (uint16_t)(handle >> 16);
mcp->mb[6] = (uint16_t)cmd->device->lun;
mcp->out_mb = MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x103c, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103d,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_abort_target(struct fc_port *fcport, uint64_t l, int tag)
{
int rval, rval2;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
scsi_qla_host_t *vha;
vha = fcport->vha;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103e,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_ABORT_TARGET;
mcp->out_mb = MBX_9|MBX_2|MBX_1|MBX_0;
if (HAS_EXTENDED_IDS(vha->hw)) {
mcp->mb[1] = fcport->loop_id;
mcp->mb[10] = 0;
mcp->out_mb |= MBX_10;
} else {
mcp->mb[1] = fcport->loop_id << 8;
}
mcp->mb[2] = vha->hw->loop_reset_delay;
mcp->mb[9] = vha->vp_idx;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103f,
"Failed=%x.\n", rval);
}
/* Issue marker IOCB. */
rval2 = qla2x00_marker(vha, vha->hw->base_qpair, fcport->loop_id, 0,
MK_SYNC_ID);
if (rval2 != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1040,
"Failed to issue marker IOCB (%x).\n", rval2);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1041,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_lun_reset(struct fc_port *fcport, uint64_t l, int tag)
{
int rval, rval2;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
scsi_qla_host_t *vha;
vha = fcport->vha;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1042,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_LUN_RESET;
mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0;
if (HAS_EXTENDED_IDS(vha->hw))
mcp->mb[1] = fcport->loop_id;
else
mcp->mb[1] = fcport->loop_id << 8;
mcp->mb[2] = (u32)l;
mcp->mb[3] = 0;
mcp->mb[9] = vha->vp_idx;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1043, "Failed=%x.\n", rval);
}
/* Issue marker IOCB. */
rval2 = qla2x00_marker(vha, vha->hw->base_qpair, fcport->loop_id, l,
MK_SYNC_ID_LUN);
if (rval2 != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1044,
"Failed to issue marker IOCB (%x).\n", rval2);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1045,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_get_adapter_id
* Get adapter ID and topology.
*
* Input:
* ha = adapter block pointer.
* id = pointer for loop ID.
* al_pa = pointer for AL_PA.
* area = pointer for area.
* domain = pointer for domain.
* top = pointer for topology.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_adapter_id(scsi_qla_host_t *vha, uint16_t *id, uint8_t *al_pa,
uint8_t *area, uint8_t *domain, uint16_t *top, uint16_t *sw_cap)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1046,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_ADAPTER_LOOP_ID;
mcp->mb[9] = vha->vp_idx;
mcp->out_mb = MBX_9|MBX_0;
mcp->in_mb = MBX_9|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
if (IS_CNA_CAPABLE(vha->hw))
mcp->in_mb |= MBX_13|MBX_12|MBX_11|MBX_10;
if (IS_FWI2_CAPABLE(vha->hw))
mcp->in_mb |= MBX_19|MBX_18|MBX_17|MBX_16;
if (IS_QLA27XX(vha->hw) || IS_QLA28XX(vha->hw))
mcp->in_mb |= MBX_15|MBX_21|MBX_22|MBX_23;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (mcp->mb[0] == MBS_COMMAND_ERROR)
rval = QLA_COMMAND_ERROR;
else if (mcp->mb[0] == MBS_INVALID_COMMAND)
rval = QLA_INVALID_COMMAND;
/* Return data. */
*id = mcp->mb[1];
*al_pa = LSB(mcp->mb[2]);
*area = MSB(mcp->mb[2]);
*domain = LSB(mcp->mb[3]);
*top = mcp->mb[6];
*sw_cap = mcp->mb[7];
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1047, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1048,
"Done %s.\n", __func__);
if (IS_CNA_CAPABLE(vha->hw)) {
vha->fcoe_vlan_id = mcp->mb[9] & 0xfff;
vha->fcoe_fcf_idx = mcp->mb[10];
vha->fcoe_vn_port_mac[5] = mcp->mb[11] >> 8;
vha->fcoe_vn_port_mac[4] = mcp->mb[11] & 0xff;
vha->fcoe_vn_port_mac[3] = mcp->mb[12] >> 8;
vha->fcoe_vn_port_mac[2] = mcp->mb[12] & 0xff;
vha->fcoe_vn_port_mac[1] = mcp->mb[13] >> 8;
vha->fcoe_vn_port_mac[0] = mcp->mb[13] & 0xff;
}
/* If FA-WWN supported */
if (IS_FAWWN_CAPABLE(vha->hw)) {
if (mcp->mb[7] & BIT_14) {
vha->port_name[0] = MSB(mcp->mb[16]);
vha->port_name[1] = LSB(mcp->mb[16]);
vha->port_name[2] = MSB(mcp->mb[17]);
vha->port_name[3] = LSB(mcp->mb[17]);
vha->port_name[4] = MSB(mcp->mb[18]);
vha->port_name[5] = LSB(mcp->mb[18]);
vha->port_name[6] = MSB(mcp->mb[19]);
vha->port_name[7] = LSB(mcp->mb[19]);
fc_host_port_name(vha->host) =
wwn_to_u64(vha->port_name);
ql_dbg(ql_dbg_mbx, vha, 0x10ca,
"FA-WWN acquired %016llx\n",
wwn_to_u64(vha->port_name));
}
}
if (IS_QLA27XX(vha->hw) || IS_QLA28XX(vha->hw)) {
vha->bbcr = mcp->mb[15];
if (mcp->mb[7] & SCM_EDC_ACC_RECEIVED) {
ql_log(ql_log_info, vha, 0x11a4,
"SCM: EDC ELS completed, flags 0x%x\n",
mcp->mb[21]);
}
if (mcp->mb[7] & SCM_RDF_ACC_RECEIVED) {
vha->hw->flags.scm_enabled = 1;
vha->scm_fabric_connection_flags |=
SCM_FLAG_RDF_COMPLETED;
ql_log(ql_log_info, vha, 0x11a5,
"SCM: RDF ELS completed, flags 0x%x\n",
mcp->mb[23]);
}
}
}
return rval;
}
/*
* qla2x00_get_retry_cnt
* Get current firmware login retry count and delay.
*
* Input:
* ha = adapter block pointer.
* retry_cnt = pointer to login retry count.
* tov = pointer to login timeout value.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_retry_cnt(scsi_qla_host_t *vha, uint8_t *retry_cnt, uint8_t *tov,
uint16_t *r_a_tov)
{
int rval;
uint16_t ratov;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1049,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_RETRY_COUNT;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x104a,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
/* Convert returned data and check our values. */
*r_a_tov = mcp->mb[3] / 2;
ratov = (mcp->mb[3]/2) / 10; /* mb[3] value is in 100ms */
if (mcp->mb[1] * ratov > (*retry_cnt) * (*tov)) {
/* Update to the larger values */
*retry_cnt = (uint8_t)mcp->mb[1];
*tov = ratov;
}
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104b,
"Done %s mb3=%d ratov=%d.\n", __func__, mcp->mb[3], ratov);
}
return rval;
}
/*
* qla2x00_init_firmware
* Initialize adapter firmware.
*
* Input:
* ha = adapter block pointer.
* dptr = Initialization control block pointer.
* size = size of initialization control block.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104c,
"Entered %s.\n", __func__);
if (IS_P3P_TYPE(ha) && ql2xdbwr)
qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr,
(0x04 | (ha->portnum << 5) | (0 << 8) | (0 << 16)));
if (ha->flags.npiv_supported)
mcp->mb[0] = MBC_MID_INITIALIZE_FIRMWARE;
else
mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
mcp->mb[1] = 0;
mcp->mb[2] = MSW(ha->init_cb_dma);
mcp->mb[3] = LSW(ha->init_cb_dma);
mcp->mb[6] = MSW(MSD(ha->init_cb_dma));
mcp->mb[7] = LSW(MSD(ha->init_cb_dma));
mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
if (ha->ex_init_cb && ha->ex_init_cb->ex_version) {
mcp->mb[1] = BIT_0;
mcp->mb[10] = MSW(ha->ex_init_cb_dma);
mcp->mb[11] = LSW(ha->ex_init_cb_dma);
mcp->mb[12] = MSW(MSD(ha->ex_init_cb_dma));
mcp->mb[13] = LSW(MSD(ha->ex_init_cb_dma));
mcp->mb[14] = sizeof(*ha->ex_init_cb);
mcp->out_mb |= MBX_14|MBX_13|MBX_12|MBX_11|MBX_10;
}
if (ha->flags.scm_supported_f || vha->flags.nvme2_enabled) {
mcp->mb[1] |= BIT_1;
mcp->mb[16] = MSW(ha->sf_init_cb_dma);
mcp->mb[17] = LSW(ha->sf_init_cb_dma);
mcp->mb[18] = MSW(MSD(ha->sf_init_cb_dma));
mcp->mb[19] = LSW(MSD(ha->sf_init_cb_dma));
mcp->mb[15] = sizeof(*ha->sf_init_cb);
mcp->out_mb |= MBX_19|MBX_18|MBX_17|MBX_16|MBX_15;
}
/* 1 and 2 should normally be captured. */
mcp->in_mb = MBX_2|MBX_1|MBX_0;
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
/* mb3 is additional info about the installed SFP. */
mcp->in_mb |= MBX_3;
mcp->buf_size = size;
mcp->flags = MBX_DMA_OUT;
mcp->tov = MBX_TOV_SECONDS;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x104d,
"Failed=%x mb[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3]);
if (ha->init_cb) {
ql_dbg(ql_dbg_mbx, vha, 0x104d, "init_cb:\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha,
0x0104d, ha->init_cb, sizeof(*ha->init_cb));
}
if (ha->ex_init_cb && ha->ex_init_cb->ex_version) {
ql_dbg(ql_dbg_mbx, vha, 0x104d, "ex_init_cb:\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha,
0x0104d, ha->ex_init_cb, sizeof(*ha->ex_init_cb));
}
} else {
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
if (mcp->mb[2] == 6 || mcp->mb[3] == 2)
ql_dbg(ql_dbg_mbx, vha, 0x119d,
"Invalid SFP/Validation Failed\n");
}
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104e,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_get_port_database
* Issue normal/enhanced get port database mailbox command
* and copy device name as necessary.
*
* Input:
* ha = adapter state pointer.
* dev = structure pointer.
* opt = enhanced cmd option byte.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_port_database(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t opt)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
port_database_t *pd;
struct port_database_24xx *pd24;
dma_addr_t pd_dma;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x104f,
"Entered %s.\n", __func__);
pd24 = NULL;
pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
if (pd == NULL) {
ql_log(ql_log_warn, vha, 0x1050,
"Failed to allocate port database structure.\n");
fcport->query = 0;
return QLA_MEMORY_ALLOC_FAILED;
}
mcp->mb[0] = MBC_GET_PORT_DATABASE;
if (opt != 0 && !IS_FWI2_CAPABLE(ha))
mcp->mb[0] = MBC_ENHANCED_GET_PORT_DATABASE;
mcp->mb[2] = MSW(pd_dma);
mcp->mb[3] = LSW(pd_dma);
mcp->mb[6] = MSW(MSD(pd_dma));
mcp->mb[7] = LSW(MSD(pd_dma));
mcp->mb[9] = vha->vp_idx;
mcp->out_mb = MBX_9|MBX_7|MBX_6|MBX_3|MBX_2|MBX_0;
mcp->in_mb = MBX_0;
if (IS_FWI2_CAPABLE(ha)) {
mcp->mb[1] = fcport->loop_id;
mcp->mb[10] = opt;
mcp->out_mb |= MBX_10|MBX_1;
mcp->in_mb |= MBX_1;
} else if (HAS_EXTENDED_IDS(ha)) {
mcp->mb[1] = fcport->loop_id;
mcp->mb[10] = opt;
mcp->out_mb |= MBX_10|MBX_1;
} else {
mcp->mb[1] = fcport->loop_id << 8 | opt;
mcp->out_mb |= MBX_1;
}
mcp->buf_size = IS_FWI2_CAPABLE(ha) ?
PORT_DATABASE_24XX_SIZE : PORT_DATABASE_SIZE;
mcp->flags = MBX_DMA_IN;
mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS)
goto gpd_error_out;
if (IS_FWI2_CAPABLE(ha)) {
uint64_t zero = 0;
u8 current_login_state, last_login_state;
pd24 = (struct port_database_24xx *) pd;
/* Check for logged in state. */
if (NVME_TARGET(ha, fcport)) {
current_login_state = pd24->current_login_state >> 4;
last_login_state = pd24->last_login_state >> 4;
} else {
current_login_state = pd24->current_login_state & 0xf;
last_login_state = pd24->last_login_state & 0xf;
}
fcport->current_login_state = pd24->current_login_state;
fcport->last_login_state = pd24->last_login_state;
/* Check for logged in state. */
if (current_login_state != PDS_PRLI_COMPLETE &&
last_login_state != PDS_PRLI_COMPLETE) {
ql_dbg(ql_dbg_mbx, vha, 0x119a,
"Unable to verify login-state (%x/%x) for loop_id %x.\n",
current_login_state, last_login_state,
fcport->loop_id);
rval = QLA_FUNCTION_FAILED;
if (!fcport->query)
goto gpd_error_out;
}
if (fcport->loop_id == FC_NO_LOOP_ID ||
(memcmp(fcport->port_name, (uint8_t *)&zero, 8) &&
memcmp(fcport->port_name, pd24->port_name, 8))) {
/* We lost the device mid way. */
rval = QLA_NOT_LOGGED_IN;
goto gpd_error_out;
}
/* Names are little-endian. */
memcpy(fcport->node_name, pd24->node_name, WWN_SIZE);
memcpy(fcport->port_name, pd24->port_name, WWN_SIZE);
/* Get port_id of device. */
fcport->d_id.b.domain = pd24->port_id[0];
fcport->d_id.b.area = pd24->port_id[1];
fcport->d_id.b.al_pa = pd24->port_id[2];
fcport->d_id.b.rsvd_1 = 0;
/* If not target must be initiator or unknown type. */
if ((pd24->prli_svc_param_word_3[0] & BIT_4) == 0)
fcport->port_type = FCT_INITIATOR;
else
fcport->port_type = FCT_TARGET;
/* Passback COS information. */
fcport->supported_classes = (pd24->flags & PDF_CLASS_2) ?
FC_COS_CLASS2 : FC_COS_CLASS3;
if (pd24->prli_svc_param_word_3[0] & BIT_7)
fcport->flags |= FCF_CONF_COMP_SUPPORTED;
} else {
uint64_t zero = 0;
/* Check for logged in state. */
if (pd->master_state != PD_STATE_PORT_LOGGED_IN &&
pd->slave_state != PD_STATE_PORT_LOGGED_IN) {
ql_dbg(ql_dbg_mbx, vha, 0x100a,
"Unable to verify login-state (%x/%x) - "
"portid=%02x%02x%02x.\n", pd->master_state,
pd->slave_state, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
rval = QLA_FUNCTION_FAILED;
goto gpd_error_out;
}
if (fcport->loop_id == FC_NO_LOOP_ID ||
(memcmp(fcport->port_name, (uint8_t *)&zero, 8) &&
memcmp(fcport->port_name, pd->port_name, 8))) {
/* We lost the device mid way. */
rval = QLA_NOT_LOGGED_IN;
goto gpd_error_out;
}
/* Names are little-endian. */
memcpy(fcport->node_name, pd->node_name, WWN_SIZE);
memcpy(fcport->port_name, pd->port_name, WWN_SIZE);
/* Get port_id of device. */
fcport->d_id.b.domain = pd->port_id[0];
fcport->d_id.b.area = pd->port_id[3];
fcport->d_id.b.al_pa = pd->port_id[2];
fcport->d_id.b.rsvd_1 = 0;
/* If not target must be initiator or unknown type. */
if ((pd->prli_svc_param_word_3[0] & BIT_4) == 0)
fcport->port_type = FCT_INITIATOR;
else
fcport->port_type = FCT_TARGET;
/* Passback COS information. */
fcport->supported_classes = (pd->options & BIT_4) ?
FC_COS_CLASS2 : FC_COS_CLASS3;
}
gpd_error_out:
dma_pool_free(ha->s_dma_pool, pd, pd_dma);
fcport->query = 0;
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1052,
"Failed=%x mb[0]=%x mb[1]=%x.\n", rval,
mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1053,
"Done %s.\n", __func__);
}
return rval;
}
int
qla24xx_get_port_database(scsi_qla_host_t *vha, u16 nport_handle,
struct port_database_24xx *pdb)
{
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
dma_addr_t pdb_dma;
int rval;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1115,
"Entered %s.\n", __func__);
memset(pdb, 0, sizeof(*pdb));
pdb_dma = dma_map_single(&vha->hw->pdev->dev, pdb,
sizeof(*pdb), DMA_FROM_DEVICE);
if (!pdb_dma) {
ql_log(ql_log_warn, vha, 0x1116, "Failed to map dma buffer.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
mcp->mb[0] = MBC_GET_PORT_DATABASE;
mcp->mb[1] = nport_handle;
mcp->mb[2] = MSW(LSD(pdb_dma));
mcp->mb[3] = LSW(LSD(pdb_dma));
mcp->mb[6] = MSW(MSD(pdb_dma));
mcp->mb[7] = LSW(MSD(pdb_dma));
mcp->mb[9] = 0;
mcp->mb[10] = 0;
mcp->out_mb = MBX_10|MBX_9|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->buf_size = sizeof(*pdb);
mcp->flags = MBX_DMA_IN;
mcp->tov = vha->hw->login_timeout * 2;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x111a,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x111b,
"Done %s.\n", __func__);
}
dma_unmap_single(&vha->hw->pdev->dev, pdb_dma,
sizeof(*pdb), DMA_FROM_DEVICE);
return rval;
}
/*
* qla2x00_get_firmware_state
* Get adapter firmware state.
*
* Input:
* ha = adapter block pointer.
* dptr = pointer for firmware state.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_firmware_state(scsi_qla_host_t *vha, uint16_t *states)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1054,
"Entered %s.\n", __func__);
if (!ha->flags.fw_started)
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
mcp->out_mb = MBX_0;
if (IS_FWI2_CAPABLE(vha->hw))
mcp->in_mb = MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
else
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
/* Return firmware states. */
states[0] = mcp->mb[1];
if (IS_FWI2_CAPABLE(vha->hw)) {
states[1] = mcp->mb[2];
states[2] = mcp->mb[3]; /* SFP info */
states[3] = mcp->mb[4];
states[4] = mcp->mb[5];
states[5] = mcp->mb[6]; /* DPORT status */
}
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1055, "Failed=%x.\n", rval);
} else {
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
if (mcp->mb[2] == 6 || mcp->mb[3] == 2)
ql_dbg(ql_dbg_mbx, vha, 0x119e,
"Invalid SFP/Validation Failed\n");
}
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1056,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_get_port_name
* Issue get port name mailbox command.
* Returned name is in big endian format.
*
* Input:
* ha = adapter block pointer.
* loop_id = loop ID of device.
* name = pointer for name.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_port_name(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t *name,
uint8_t opt)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1057,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_PORT_NAME;
mcp->mb[9] = vha->vp_idx;
mcp->out_mb = MBX_9|MBX_1|MBX_0;
if (HAS_EXTENDED_IDS(vha->hw)) {
mcp->mb[1] = loop_id;
mcp->mb[10] = opt;
mcp->out_mb |= MBX_10;
} else {
mcp->mb[1] = loop_id << 8 | opt;
}
mcp->in_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1058, "Failed=%x.\n", rval);
} else {
if (name != NULL) {
/* This function returns name in big endian. */
name[0] = MSB(mcp->mb[2]);
name[1] = LSB(mcp->mb[2]);
name[2] = MSB(mcp->mb[3]);
name[3] = LSB(mcp->mb[3]);
name[4] = MSB(mcp->mb[6]);
name[5] = LSB(mcp->mb[6]);
name[6] = MSB(mcp->mb[7]);
name[7] = LSB(mcp->mb[7]);
}
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1059,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla24xx_link_initialization
* Issue link initialization mailbox command.
*
* Input:
* ha = adapter block pointer.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla24xx_link_initialize(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1152,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw) || IS_CNA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_LINK_INITIALIZATION;
mcp->mb[1] = BIT_4;
if (vha->hw->operating_mode == LOOP)
mcp->mb[1] |= BIT_6;
else
mcp->mb[1] |= BIT_5;
mcp->mb[2] = 0;
mcp->mb[3] = 0;
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1153, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1154,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_lip_reset
* Issue LIP reset mailbox command.
*
* Input:
* ha = adapter block pointer.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_lip_reset(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_disc, vha, 0x105a,
"Entered %s.\n", __func__);
if (IS_CNA_CAPABLE(vha->hw)) {
/* Logout across all FCFs. */
mcp->mb[0] = MBC_LIP_FULL_LOGIN;
mcp->mb[1] = BIT_1;
mcp->mb[2] = 0;
mcp->out_mb = MBX_2|MBX_1|MBX_0;
} else if (IS_FWI2_CAPABLE(vha->hw)) {
mcp->mb[0] = MBC_LIP_FULL_LOGIN;
mcp->mb[1] = BIT_4;
mcp->mb[2] = 0;
mcp->mb[3] = vha->hw->loop_reset_delay;
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
} else {
mcp->mb[0] = MBC_LIP_RESET;
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
if (HAS_EXTENDED_IDS(vha->hw)) {
mcp->mb[1] = 0x00ff;
mcp->mb[10] = 0;
mcp->out_mb |= MBX_10;
} else {
mcp->mb[1] = 0xff00;
}
mcp->mb[2] = vha->hw->loop_reset_delay;
mcp->mb[3] = 0;
}
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x105b, "Failed=%x.\n", rval);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x105c,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_send_sns
* Send SNS command.
*
* Input:
* ha = adapter block pointer.
* sns = pointer for command.
* cmd_size = command size.
* buf_size = response/command size.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_send_sns(scsi_qla_host_t *vha, dma_addr_t sns_phys_address,
uint16_t cmd_size, size_t buf_size)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x105d,
"Entered %s.\n", __func__);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x105e,
"Retry cnt=%d ratov=%d total tov=%d.\n",
vha->hw->retry_count, vha->hw->login_timeout, mcp->tov);
mcp->mb[0] = MBC_SEND_SNS_COMMAND;
mcp->mb[1] = cmd_size;
mcp->mb[2] = MSW(sns_phys_address);
mcp->mb[3] = LSW(sns_phys_address);
mcp->mb[6] = MSW(MSD(sns_phys_address));
mcp->mb[7] = LSW(MSD(sns_phys_address));
mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0|MBX_1;
mcp->buf_size = buf_size;
mcp->flags = MBX_DMA_OUT|MBX_DMA_IN;
mcp->tov = (vha->hw->login_timeout * 2) + (vha->hw->login_timeout / 2);
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x105f,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1060,
"Done %s.\n", __func__);
}
return rval;
}
int
qla24xx_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain,
uint8_t area, uint8_t al_pa, uint16_t *mb, uint8_t opt)
{
int rval;
struct logio_entry_24xx *lg;
dma_addr_t lg_dma;
uint32_t iop[2];
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1061,
"Entered %s.\n", __func__);
if (vha->vp_idx && vha->qpair)
req = vha->qpair->req;
else
req = ha->req_q_map[0];
lg = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma);
if (lg == NULL) {
ql_log(ql_log_warn, vha, 0x1062,
"Failed to allocate login IOCB.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
lg->entry_type = LOGINOUT_PORT_IOCB_TYPE;
lg->entry_count = 1;
lg->handle = make_handle(req->id, lg->handle);
lg->nport_handle = cpu_to_le16(loop_id);
lg->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
if (opt & BIT_0)
lg->control_flags |= cpu_to_le16(LCF_COND_PLOGI);
if (opt & BIT_1)
lg->control_flags |= cpu_to_le16(LCF_SKIP_PRLI);
lg->port_id[0] = al_pa;
lg->port_id[1] = area;
lg->port_id[2] = domain;
lg->vp_index = vha->vp_idx;
rval = qla2x00_issue_iocb_timeout(vha, lg, lg_dma, 0,
(ha->r_a_tov / 10 * 2) + 2);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1063,
"Failed to issue login IOCB (%x).\n", rval);
} else if (lg->entry_status != 0) {
ql_dbg(ql_dbg_mbx, vha, 0x1064,
"Failed to complete IOCB -- error status (%x).\n",
lg->entry_status);
rval = QLA_FUNCTION_FAILED;
} else if (lg->comp_status != cpu_to_le16(CS_COMPLETE)) {
iop[0] = le32_to_cpu(lg->io_parameter[0]);
iop[1] = le32_to_cpu(lg->io_parameter[1]);
ql_dbg(ql_dbg_mbx, vha, 0x1065,
"Failed to complete IOCB -- completion status (%x) "
"ioparam=%x/%x.\n", le16_to_cpu(lg->comp_status),
iop[0], iop[1]);
switch (iop[0]) {
case LSC_SCODE_PORTID_USED:
mb[0] = MBS_PORT_ID_USED;
mb[1] = LSW(iop[1]);
break;
case LSC_SCODE_NPORT_USED:
mb[0] = MBS_LOOP_ID_USED;
break;
case LSC_SCODE_NOLINK:
case LSC_SCODE_NOIOCB:
case LSC_SCODE_NOXCB:
case LSC_SCODE_CMD_FAILED:
case LSC_SCODE_NOFABRIC:
case LSC_SCODE_FW_NOT_READY:
case LSC_SCODE_NOT_LOGGED_IN:
case LSC_SCODE_NOPCB:
case LSC_SCODE_ELS_REJECT:
case LSC_SCODE_CMD_PARAM_ERR:
case LSC_SCODE_NONPORT:
case LSC_SCODE_LOGGED_IN:
case LSC_SCODE_NOFLOGI_ACC:
default:
mb[0] = MBS_COMMAND_ERROR;
break;
}
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1066,
"Done %s.\n", __func__);
iop[0] = le32_to_cpu(lg->io_parameter[0]);
mb[0] = MBS_COMMAND_COMPLETE;
mb[1] = 0;
if (iop[0] & BIT_4) {
if (iop[0] & BIT_8)
mb[1] |= BIT_1;
} else
mb[1] = BIT_0;
/* Passback COS information. */
mb[10] = 0;
if (lg->io_parameter[7] || lg->io_parameter[8])
mb[10] |= BIT_0; /* Class 2. */
if (lg->io_parameter[9] || lg->io_parameter[10])
mb[10] |= BIT_1; /* Class 3. */
if (lg->io_parameter[0] & cpu_to_le32(BIT_7))
mb[10] |= BIT_7; /* Confirmed Completion
* Allowed
*/
}
dma_pool_free(ha->s_dma_pool, lg, lg_dma);
return rval;
}
/*
* qla2x00_login_fabric
* Issue login fabric port mailbox command.
*
* Input:
* ha = adapter block pointer.
* loop_id = device loop ID.
* domain = device domain.
* area = device area.
* al_pa = device AL_PA.
* status = pointer for return status.
* opt = command options.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain,
uint8_t area, uint8_t al_pa, uint16_t *mb, uint8_t opt)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1067,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_LOGIN_FABRIC_PORT;
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
if (HAS_EXTENDED_IDS(ha)) {
mcp->mb[1] = loop_id;
mcp->mb[10] = opt;
mcp->out_mb |= MBX_10;
} else {
mcp->mb[1] = (loop_id << 8) | opt;
}
mcp->mb[2] = domain;
mcp->mb[3] = area << 8 | al_pa;
mcp->in_mb = MBX_7|MBX_6|MBX_2|MBX_1|MBX_0;
mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
/* Return mailbox statuses. */
if (mb != NULL) {
mb[0] = mcp->mb[0];
mb[1] = mcp->mb[1];
mb[2] = mcp->mb[2];
mb[6] = mcp->mb[6];
mb[7] = mcp->mb[7];
/* COS retrieved from Get-Port-Database mailbox command. */
mb[10] = 0;
}
if (rval != QLA_SUCCESS) {
/* RLU tmp code: need to change main mailbox_command function to
* return ok even when the mailbox completion value is not
* SUCCESS. The caller needs to be responsible to interpret
* the return values of this mailbox command if we're not
* to change too much of the existing code.
*/
if (mcp->mb[0] == 0x4001 || mcp->mb[0] == 0x4002 ||
mcp->mb[0] == 0x4003 || mcp->mb[0] == 0x4005 ||
mcp->mb[0] == 0x4006)
rval = QLA_SUCCESS;
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1068,
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1069,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_login_local_device
* Issue login loop port mailbox command.
*
* Input:
* ha = adapter block pointer.
* loop_id = device loop ID.
* opt = command options.
*
* Returns:
* Return status code.
*
* Context:
* Kernel context.
*
*/
int
qla2x00_login_local_device(scsi_qla_host_t *vha, fc_port_t *fcport,
uint16_t *mb_ret, uint8_t opt)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106a,
"Entered %s.\n", __func__);
if (IS_FWI2_CAPABLE(ha))
return qla24xx_login_fabric(vha, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa, mb_ret, opt);
mcp->mb[0] = MBC_LOGIN_LOOP_PORT;
if (HAS_EXTENDED_IDS(ha))
mcp->mb[1] = fcport->loop_id;
else
mcp->mb[1] = fcport->loop_id << 8;
mcp->mb[2] = opt;
mcp->out_mb = MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_7|MBX_6|MBX_1|MBX_0;
mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
/* Return mailbox statuses. */
if (mb_ret != NULL) {
mb_ret[0] = mcp->mb[0];
mb_ret[1] = mcp->mb[1];
mb_ret[6] = mcp->mb[6];
mb_ret[7] = mcp->mb[7];
}
if (rval != QLA_SUCCESS) {
/* AV tmp code: need to change main mailbox_command function to
* return ok even when the mailbox completion value is not
* SUCCESS. The caller needs to be responsible to interpret
* the return values of this mailbox command if we're not
* to change too much of the existing code.
*/
if (mcp->mb[0] == 0x4005 || mcp->mb[0] == 0x4006)
rval = QLA_SUCCESS;
ql_dbg(ql_dbg_mbx, vha, 0x106b,
"Failed=%x mb[0]=%x mb[1]=%x mb[6]=%x mb[7]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[6], mcp->mb[7]);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106c,
"Done %s.\n", __func__);
}
return (rval);
}
int
qla24xx_fabric_logout(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain,
uint8_t area, uint8_t al_pa)
{
int rval;
struct logio_entry_24xx *lg;
dma_addr_t lg_dma;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106d,
"Entered %s.\n", __func__);
lg = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma);
if (lg == NULL) {
ql_log(ql_log_warn, vha, 0x106e,
"Failed to allocate logout IOCB.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
req = vha->req;
lg->entry_type = LOGINOUT_PORT_IOCB_TYPE;
lg->entry_count = 1;
lg->handle = make_handle(req->id, lg->handle);
lg->nport_handle = cpu_to_le16(loop_id);
lg->control_flags =
cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO|
LCF_FREE_NPORT);
lg->port_id[0] = al_pa;
lg->port_id[1] = area;
lg->port_id[2] = domain;
lg->vp_index = vha->vp_idx;
rval = qla2x00_issue_iocb_timeout(vha, lg, lg_dma, 0,
(ha->r_a_tov / 10 * 2) + 2);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x106f,
"Failed to issue logout IOCB (%x).\n", rval);
} else if (lg->entry_status != 0) {
ql_dbg(ql_dbg_mbx, vha, 0x1070,
"Failed to complete IOCB -- error status (%x).\n",
lg->entry_status);
rval = QLA_FUNCTION_FAILED;
} else if (lg->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_dbg(ql_dbg_mbx, vha, 0x1071,
"Failed to complete IOCB -- completion status (%x) "
"ioparam=%x/%x.\n", le16_to_cpu(lg->comp_status),
le32_to_cpu(lg->io_parameter[0]),
le32_to_cpu(lg->io_parameter[1]));
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1072,
"Done %s.\n", __func__);
}
dma_pool_free(ha->s_dma_pool, lg, lg_dma);
return rval;
}
/*
* qla2x00_fabric_logout
* Issue logout fabric port mailbox command.
*
* Input:
* ha = adapter block pointer.
* loop_id = device loop ID.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_fabric_logout(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain,
uint8_t area, uint8_t al_pa)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1073,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_LOGOUT_FABRIC_PORT;
mcp->out_mb = MBX_1|MBX_0;
if (HAS_EXTENDED_IDS(vha->hw)) {
mcp->mb[1] = loop_id;
mcp->mb[10] = 0;
mcp->out_mb |= MBX_10;
} else {
mcp->mb[1] = loop_id << 8;
}
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1074,
"Failed=%x mb[1]=%x.\n", rval, mcp->mb[1]);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1075,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_full_login_lip
* Issue full login LIP mailbox command.
*
* Input:
* ha = adapter block pointer.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_full_login_lip(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1076,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_LIP_FULL_LOGIN;
mcp->mb[1] = IS_FWI2_CAPABLE(vha->hw) ? BIT_4 : 0;
mcp->mb[2] = 0;
mcp->mb[3] = 0;
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1077, "Failed=%x.\n", rval);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1078,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_get_id_list
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_id_list(scsi_qla_host_t *vha, void *id_list, dma_addr_t id_list_dma,
uint16_t *entries)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1079,
"Entered %s.\n", __func__);
if (id_list == NULL)
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_GET_ID_LIST;
mcp->out_mb = MBX_0;
if (IS_FWI2_CAPABLE(vha->hw)) {
mcp->mb[2] = MSW(id_list_dma);
mcp->mb[3] = LSW(id_list_dma);
mcp->mb[6] = MSW(MSD(id_list_dma));
mcp->mb[7] = LSW(MSD(id_list_dma));
mcp->mb[8] = 0;
mcp->mb[9] = vha->vp_idx;
mcp->out_mb |= MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2;
} else {
mcp->mb[1] = MSW(id_list_dma);
mcp->mb[2] = LSW(id_list_dma);
mcp->mb[3] = MSW(MSD(id_list_dma));
mcp->mb[6] = LSW(MSD(id_list_dma));
mcp->out_mb |= MBX_6|MBX_3|MBX_2|MBX_1;
}
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x107a, "Failed=%x.\n", rval);
} else {
*entries = mcp->mb[1];
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107b,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_get_resource_cnts
* Get current firmware resource counts.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_resource_cnts(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107c,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_RESOURCE_COUNTS;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_11|MBX_10|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
IS_QLA27XX(ha) || IS_QLA28XX(ha))
mcp->in_mb |= MBX_12;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x107d,
"Failed mb[0]=%x.\n", mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107e,
"Done %s mb1=%x mb2=%x mb3=%x mb6=%x mb7=%x mb10=%x "
"mb11=%x mb12=%x.\n", __func__, mcp->mb[1], mcp->mb[2],
mcp->mb[3], mcp->mb[6], mcp->mb[7], mcp->mb[10],
mcp->mb[11], mcp->mb[12]);
ha->orig_fw_tgt_xcb_count = mcp->mb[1];
ha->cur_fw_tgt_xcb_count = mcp->mb[2];
ha->cur_fw_xcb_count = mcp->mb[3];
ha->orig_fw_xcb_count = mcp->mb[6];
ha->cur_fw_iocb_count = mcp->mb[7];
ha->orig_fw_iocb_count = mcp->mb[10];
if (ha->flags.npiv_supported)
ha->max_npiv_vports = mcp->mb[11];
if (IS_QLA81XX(ha) || IS_QLA83XX(ha))
ha->fw_max_fcf_count = mcp->mb[12];
}
return (rval);
}
/*
* qla2x00_get_fcal_position_map
* Get FCAL (LILP) position map using mailbox command
*
* Input:
* ha = adapter state pointer.
* pos_map = buffer pointer (can be NULL).
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_get_fcal_position_map(scsi_qla_host_t *vha, char *pos_map,
u8 *num_entries)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
char *pmap;
dma_addr_t pmap_dma;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107f,
"Entered %s.\n", __func__);
pmap = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pmap_dma);
if (pmap == NULL) {
ql_log(ql_log_warn, vha, 0x1080,
"Memory alloc failed.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
mcp->mb[0] = MBC_GET_FC_AL_POSITION_MAP;
mcp->mb[2] = MSW(pmap_dma);
mcp->mb[3] = LSW(pmap_dma);
mcp->mb[6] = MSW(MSD(pmap_dma));
mcp->mb[7] = LSW(MSD(pmap_dma));
mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->buf_size = FCAL_MAP_SIZE;
mcp->flags = MBX_DMA_IN;
mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
rval = qla2x00_mailbox_command(vha, mcp);
if (rval == QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1081,
"mb0/mb1=%x/%X FC/AL position map size (%x).\n",
mcp->mb[0], mcp->mb[1], (unsigned)pmap[0]);
ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x111d,
pmap, pmap[0] + 1);
if (pos_map)
memcpy(pos_map, pmap, FCAL_MAP_SIZE);
if (num_entries)
*num_entries = pmap[0];
}
dma_pool_free(ha->s_dma_pool, pmap, pmap_dma);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1082, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1083,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qla2x00_get_link_status
*
* Input:
* ha = adapter block pointer.
* loop_id = device loop ID.
* ret_buf = pointer to link status return buffer.
*
* Returns:
* 0 = success.
* BIT_0 = mem alloc error.
* BIT_1 = mailbox error.
*/
int
qla2x00_get_link_status(scsi_qla_host_t *vha, uint16_t loop_id,
struct link_statistics *stats, dma_addr_t stats_dma)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
uint32_t *iter = (uint32_t *)stats;
ushort dwords = offsetof(typeof(*stats), link_up_cnt)/sizeof(*iter);
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1084,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_LINK_STATUS;
mcp->mb[2] = MSW(LSD(stats_dma));
mcp->mb[3] = LSW(LSD(stats_dma));
mcp->mb[6] = MSW(MSD(stats_dma));
mcp->mb[7] = LSW(MSD(stats_dma));
mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_0;
mcp->in_mb = MBX_0;
if (IS_FWI2_CAPABLE(ha)) {
mcp->mb[1] = loop_id;
mcp->mb[4] = 0;
mcp->mb[10] = 0;
mcp->out_mb |= MBX_10|MBX_4|MBX_1;
mcp->in_mb |= MBX_1;
} else if (HAS_EXTENDED_IDS(ha)) {
mcp->mb[1] = loop_id;
mcp->mb[10] = 0;
mcp->out_mb |= MBX_10|MBX_1;
} else {
mcp->mb[1] = loop_id << 8;
mcp->out_mb |= MBX_1;
}
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = IOCTL_CMD;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval == QLA_SUCCESS) {
if (mcp->mb[0] != MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_mbx, vha, 0x1085,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
rval = QLA_FUNCTION_FAILED;
} else {
/* Re-endianize - firmware data is le32. */
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1086,
"Done %s.\n", __func__);
for ( ; dwords--; iter++)
le32_to_cpus(iter);
}
} else {
/* Failed. */
ql_dbg(ql_dbg_mbx, vha, 0x1087, "Failed=%x.\n", rval);
}
return rval;
}
int
qla24xx_get_isp_stats(scsi_qla_host_t *vha, struct link_statistics *stats,
dma_addr_t stats_dma, uint16_t options)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
uint32_t *iter = (uint32_t *)stats;
ushort dwords = sizeof(*stats)/sizeof(*iter);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1088,
"Entered %s.\n", __func__);
memset(&mc, 0, sizeof(mc));
mc.mb[0] = MBC_GET_LINK_PRIV_STATS;
mc.mb[2] = MSW(LSD(stats_dma));
mc.mb[3] = LSW(LSD(stats_dma));
mc.mb[6] = MSW(MSD(stats_dma));
mc.mb[7] = LSW(MSD(stats_dma));
mc.mb[8] = dwords;
mc.mb[9] = vha->vp_idx;
mc.mb[10] = options;
rval = qla24xx_send_mb_cmd(vha, &mc);
if (rval == QLA_SUCCESS) {
if (mcp->mb[0] != MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_mbx, vha, 0x1089,
"Failed mb[0]=%x.\n", mcp->mb[0]);
rval = QLA_FUNCTION_FAILED;
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x108a,
"Done %s.\n", __func__);
/* Re-endianize - firmware data is le32. */
for ( ; dwords--; iter++)
le32_to_cpus(iter);
}
} else {
/* Failed. */
ql_dbg(ql_dbg_mbx, vha, 0x108b, "Failed=%x.\n", rval);
}
return rval;
}
int
qla24xx_abort_command(srb_t *sp)
{
int rval;
unsigned long flags = 0;
struct abort_entry_24xx *abt;
dma_addr_t abt_dma;
uint32_t handle;
fc_port_t *fcport = sp->fcport;
struct scsi_qla_host *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
struct qla_qpair *qpair = sp->qpair;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x108c,
"Entered %s.\n", __func__);
if (sp->qpair)
req = sp->qpair->req;
else
return QLA_ERR_NO_QPAIR;
if (ql2xasynctmfenable)
return qla24xx_async_abort_command(sp);
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
if (req->outstanding_cmds[handle] == sp)
break;
}
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
if (handle == req->num_outstanding_cmds) {
/* Command not found. */
return QLA_ERR_NOT_FOUND;
}
abt = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &abt_dma);
if (abt == NULL) {
ql_log(ql_log_warn, vha, 0x108d,
"Failed to allocate abort IOCB.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
abt->entry_type = ABORT_IOCB_TYPE;
abt->entry_count = 1;
abt->handle = make_handle(req->id, abt->handle);
abt->nport_handle = cpu_to_le16(fcport->loop_id);
abt->handle_to_abort = make_handle(req->id, handle);
abt->port_id[0] = fcport->d_id.b.al_pa;
abt->port_id[1] = fcport->d_id.b.area;
abt->port_id[2] = fcport->d_id.b.domain;
abt->vp_index = fcport->vha->vp_idx;
abt->req_que_no = cpu_to_le16(req->id);
/* Need to pass original sp */
qla_nvme_abort_set_option(abt, sp);
rval = qla2x00_issue_iocb(vha, abt, abt_dma, 0);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x108e,
"Failed to issue IOCB (%x).\n", rval);
} else if (abt->entry_status != 0) {
ql_dbg(ql_dbg_mbx, vha, 0x108f,
"Failed to complete IOCB -- error status (%x).\n",
abt->entry_status);
rval = QLA_FUNCTION_FAILED;
} else if (abt->nport_handle != cpu_to_le16(0)) {
ql_dbg(ql_dbg_mbx, vha, 0x1090,
"Failed to complete IOCB -- completion status (%x).\n",
le16_to_cpu(abt->nport_handle));
if (abt->nport_handle == cpu_to_le16(CS_IOCB_ERROR))
rval = QLA_FUNCTION_PARAMETER_ERROR;
else
rval = QLA_FUNCTION_FAILED;
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1091,
"Done %s.\n", __func__);
}
if (rval == QLA_SUCCESS)
qla_nvme_abort_process_comp_status(abt, sp);
qla_wait_nvme_release_cmd_kref(sp);
dma_pool_free(ha->s_dma_pool, abt, abt_dma);
return rval;
}
struct tsk_mgmt_cmd {
union {
struct tsk_mgmt_entry tsk;
struct sts_entry_24xx sts;
} p;
};
static int
__qla24xx_issue_tmf(char *name, uint32_t type, struct fc_port *fcport,
uint64_t l, int tag)
{
int rval, rval2;
struct tsk_mgmt_cmd *tsk;
struct sts_entry_24xx *sts;
dma_addr_t tsk_dma;
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct req_que *req;
struct qla_qpair *qpair;
vha = fcport->vha;
ha = vha->hw;
req = vha->req;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1092,
"Entered %s.\n", __func__);
if (vha->vp_idx && vha->qpair) {
/* NPIV port */
qpair = vha->qpair;
req = qpair->req;
}
tsk = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &tsk_dma);
if (tsk == NULL) {
ql_log(ql_log_warn, vha, 0x1093,
"Failed to allocate task management IOCB.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
tsk->p.tsk.entry_type = TSK_MGMT_IOCB_TYPE;
tsk->p.tsk.entry_count = 1;
tsk->p.tsk.handle = make_handle(req->id, tsk->p.tsk.handle);
tsk->p.tsk.nport_handle = cpu_to_le16(fcport->loop_id);
tsk->p.tsk.timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
tsk->p.tsk.control_flags = cpu_to_le32(type);
tsk->p.tsk.port_id[0] = fcport->d_id.b.al_pa;
tsk->p.tsk.port_id[1] = fcport->d_id.b.area;
tsk->p.tsk.port_id[2] = fcport->d_id.b.domain;
tsk->p.tsk.vp_index = fcport->vha->vp_idx;
if (type == TCF_LUN_RESET) {
int_to_scsilun(l, &tsk->p.tsk.lun);
host_to_fcp_swap((uint8_t *)&tsk->p.tsk.lun,
sizeof(tsk->p.tsk.lun));
}
sts = &tsk->p.sts;
rval = qla2x00_issue_iocb(vha, tsk, tsk_dma, 0);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1094,
"Failed to issue %s reset IOCB (%x).\n", name, rval);
} else if (sts->entry_status != 0) {
ql_dbg(ql_dbg_mbx, vha, 0x1095,
"Failed to complete IOCB -- error status (%x).\n",
sts->entry_status);
rval = QLA_FUNCTION_FAILED;
} else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_dbg(ql_dbg_mbx, vha, 0x1096,
"Failed to complete IOCB -- completion status (%x).\n",
le16_to_cpu(sts->comp_status));
rval = QLA_FUNCTION_FAILED;
} else if (le16_to_cpu(sts->scsi_status) &
SS_RESPONSE_INFO_LEN_VALID) {
if (le32_to_cpu(sts->rsp_data_len) < 4) {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1097,
"Ignoring inconsistent data length -- not enough "
"response info (%d).\n",
le32_to_cpu(sts->rsp_data_len));
} else if (sts->data[3]) {
ql_dbg(ql_dbg_mbx, vha, 0x1098,
"Failed to complete IOCB -- response (%x).\n",
sts->data[3]);
rval = QLA_FUNCTION_FAILED;
}
}
/* Issue marker IOCB. */
rval2 = qla2x00_marker(vha, ha->base_qpair, fcport->loop_id, l,
type == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
if (rval2 != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1099,
"Failed to issue marker IOCB (%x).\n", rval2);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x109a,
"Done %s.\n", __func__);
}
dma_pool_free(ha->s_dma_pool, tsk, tsk_dma);
return rval;
}
int
qla24xx_abort_target(struct fc_port *fcport, uint64_t l, int tag)
{
struct qla_hw_data *ha = fcport->vha->hw;
if ((ql2xasynctmfenable) && IS_FWI2_CAPABLE(ha))
return qla2x00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
return __qla24xx_issue_tmf("Target", TCF_TARGET_RESET, fcport, l, tag);
}
int
qla24xx_lun_reset(struct fc_port *fcport, uint64_t l, int tag)
{
struct qla_hw_data *ha = fcport->vha->hw;
if ((ql2xasynctmfenable) && IS_FWI2_CAPABLE(ha))
return qla2x00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
return __qla24xx_issue_tmf("Lun", TCF_LUN_RESET, fcport, l, tag);
}
int
qla2x00_system_error(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA23XX(ha) && !IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x109b,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GEN_SYSTEM_ERROR;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = 5;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x109c, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x109d,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_write_serdes_word(scsi_qla_host_t *vha, uint16_t addr, uint16_t data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA25XX(vha->hw) && !IS_QLA2031(vha->hw) &&
!IS_QLA27XX(vha->hw) && !IS_QLA28XX(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1182,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_WRITE_SERDES;
mcp->mb[1] = addr;
if (IS_QLA2031(vha->hw))
mcp->mb[2] = data & 0xff;
else
mcp->mb[2] = data;
mcp->mb[3] = 0;
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1183,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1184,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_read_serdes_word(scsi_qla_host_t *vha, uint16_t addr, uint16_t *data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA25XX(vha->hw) && !IS_QLA2031(vha->hw) &&
!IS_QLA27XX(vha->hw) && !IS_QLA28XX(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1185,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_READ_SERDES;
mcp->mb[1] = addr;
mcp->mb[3] = 0;
mcp->out_mb = MBX_3|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (IS_QLA2031(vha->hw))
*data = mcp->mb[1] & 0xff;
else
*data = mcp->mb[1];
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1186,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1187,
"Done %s.\n", __func__);
}
return rval;
}
int
qla8044_write_serdes_word(scsi_qla_host_t *vha, uint32_t addr, uint32_t data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA8044(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x11a0,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_SET_GET_ETH_SERDES_REG;
mcp->mb[1] = HCS_WRITE_SERDES;
mcp->mb[3] = LSW(addr);
mcp->mb[4] = MSW(addr);
mcp->mb[5] = LSW(data);
mcp->mb[6] = MSW(data);
mcp->out_mb = MBX_6|MBX_5|MBX_4|MBX_3|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x11a1,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1188,
"Done %s.\n", __func__);
}
return rval;
}
int
qla8044_read_serdes_word(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA8044(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1189,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_SET_GET_ETH_SERDES_REG;
mcp->mb[1] = HCS_READ_SERDES;
mcp->mb[3] = LSW(addr);
mcp->mb[4] = MSW(addr);
mcp->out_mb = MBX_4|MBX_3|MBX_1|MBX_0;
mcp->in_mb = MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
*data = mcp->mb[2] << 16 | mcp->mb[1];
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x118a,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x118b,
"Done %s.\n", __func__);
}
return rval;
}
/**
* qla2x00_set_serdes_params() -
* @vha: HA context
* @sw_em_1g: serial link options
* @sw_em_2g: serial link options
* @sw_em_4g: serial link options
*
* Returns
*/
int
qla2x00_set_serdes_params(scsi_qla_host_t *vha, uint16_t sw_em_1g,
uint16_t sw_em_2g, uint16_t sw_em_4g)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x109e,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_SERDES_PARAMS;
mcp->mb[1] = BIT_0;
mcp->mb[2] = sw_em_1g | BIT_15;
mcp->mb[3] = sw_em_2g | BIT_15;
mcp->mb[4] = sw_em_4g | BIT_15;
mcp->out_mb = MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x109f,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a0,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_stop_firmware(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a1,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_STOP_FIRMWARE;
mcp->mb[1] = 0;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = 5;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10a2, "Failed=%x.\n", rval);
if (mcp->mb[0] == MBS_INVALID_COMMAND)
rval = QLA_INVALID_COMMAND;
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a3,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_enable_eft_trace(scsi_qla_host_t *vha, dma_addr_t eft_dma,
uint16_t buffers)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a4,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
if (unlikely(pci_channel_offline(vha->hw->pdev)))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_TRACE_CONTROL;
mcp->mb[1] = TC_EFT_ENABLE;
mcp->mb[2] = LSW(eft_dma);
mcp->mb[3] = MSW(eft_dma);
mcp->mb[4] = LSW(MSD(eft_dma));
mcp->mb[5] = MSW(MSD(eft_dma));
mcp->mb[6] = buffers;
mcp->mb[7] = TC_AEN_DISABLE;
mcp->out_mb = MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10a5,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a6,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_disable_eft_trace(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a7,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
if (unlikely(pci_channel_offline(vha->hw->pdev)))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_TRACE_CONTROL;
mcp->mb[1] = TC_EFT_DISABLE;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10a8,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10a9,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_enable_fce_trace(scsi_qla_host_t *vha, dma_addr_t fce_dma,
uint16_t buffers, uint16_t *mb, uint32_t *dwords)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10aa,
"Entered %s.\n", __func__);
if (!IS_QLA25XX(vha->hw) && !IS_QLA81XX(vha->hw) &&
!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw) &&
!IS_QLA28XX(vha->hw))
return QLA_FUNCTION_FAILED;
if (unlikely(pci_channel_offline(vha->hw->pdev)))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_TRACE_CONTROL;
mcp->mb[1] = TC_FCE_ENABLE;
mcp->mb[2] = LSW(fce_dma);
mcp->mb[3] = MSW(fce_dma);
mcp->mb[4] = LSW(MSD(fce_dma));
mcp->mb[5] = MSW(MSD(fce_dma));
mcp->mb[6] = buffers;
mcp->mb[7] = TC_AEN_DISABLE;
mcp->mb[8] = 0;
mcp->mb[9] = TC_FCE_DEFAULT_RX_SIZE;
mcp->mb[10] = TC_FCE_DEFAULT_TX_SIZE;
mcp->out_mb = MBX_10|MBX_9|MBX_8|MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|
MBX_1|MBX_0;
mcp->in_mb = MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10ab,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ac,
"Done %s.\n", __func__);
if (mb)
memcpy(mb, mcp->mb, 8 * sizeof(*mb));
if (dwords)
*dwords = buffers;
}
return rval;
}
int
qla2x00_disable_fce_trace(scsi_qla_host_t *vha, uint64_t *wr, uint64_t *rd)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ad,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
if (unlikely(pci_channel_offline(vha->hw->pdev)))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_TRACE_CONTROL;
mcp->mb[1] = TC_FCE_DISABLE;
mcp->mb[2] = TC_FCE_DISABLE_TRACE;
mcp->out_mb = MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_9|MBX_8|MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|
MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10ae,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10af,
"Done %s.\n", __func__);
if (wr)
*wr = (uint64_t) mcp->mb[5] << 48 |
(uint64_t) mcp->mb[4] << 32 |
(uint64_t) mcp->mb[3] << 16 |
(uint64_t) mcp->mb[2];
if (rd)
*rd = (uint64_t) mcp->mb[9] << 48 |
(uint64_t) mcp->mb[8] << 32 |
(uint64_t) mcp->mb[7] << 16 |
(uint64_t) mcp->mb[6];
}
return rval;
}
int
qla2x00_get_idma_speed(scsi_qla_host_t *vha, uint16_t loop_id,
uint16_t *port_speed, uint16_t *mb)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b0,
"Entered %s.\n", __func__);
if (!IS_IIDMA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_PORT_PARAMS;
mcp->mb[1] = loop_id;
mcp->mb[2] = mcp->mb[3] = 0;
mcp->mb[9] = vha->vp_idx;
mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_3|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
/* Return mailbox statuses. */
if (mb) {
mb[0] = mcp->mb[0];
mb[1] = mcp->mb[1];
mb[3] = mcp->mb[3];
}
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10b1, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b2,
"Done %s.\n", __func__);
if (port_speed)
*port_speed = mcp->mb[3];
}
return rval;
}
int
qla2x00_set_idma_speed(scsi_qla_host_t *vha, uint16_t loop_id,
uint16_t port_speed, uint16_t *mb)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b3,
"Entered %s.\n", __func__);
if (!IS_IIDMA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_PORT_PARAMS;
mcp->mb[1] = loop_id;
mcp->mb[2] = BIT_0;
mcp->mb[3] = port_speed & 0x3F;
mcp->mb[9] = vha->vp_idx;
mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_3|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
/* Return mailbox statuses. */
if (mb) {
mb[0] = mcp->mb[0];
mb[1] = mcp->mb[1];
mb[3] = mcp->mb[3];
}
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10b4,
"Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b5,
"Done %s.\n", __func__);
}
return rval;
}
void
qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
struct vp_rpt_id_entry_24xx *rptid_entry)
{
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *vp = NULL;
unsigned long flags;
int found;
port_id_t id;
struct fc_port *fcport;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b6,
"Entered %s.\n", __func__);
if (rptid_entry->entry_status != 0)
return;
id.b.domain = rptid_entry->port_id[2];
id.b.area = rptid_entry->port_id[1];
id.b.al_pa = rptid_entry->port_id[0];
id.b.rsvd_1 = 0;
ha->flags.n2n_ae = 0;
if (rptid_entry->format == 0) {
/* loop */
ql_dbg(ql_dbg_async, vha, 0x10b7,
"Format 0 : Number of VPs setup %d, number of "
"VPs acquired %d.\n", rptid_entry->vp_setup,
rptid_entry->vp_acquired);
ql_dbg(ql_dbg_async, vha, 0x10b8,
"Primary port id %02x%02x%02x.\n",
rptid_entry->port_id[2], rptid_entry->port_id[1],
rptid_entry->port_id[0]);
ha->current_topology = ISP_CFG_NL;
qla_update_host_map(vha, id);
} else if (rptid_entry->format == 1) {
/* fabric */
ql_dbg(ql_dbg_async, vha, 0x10b9,
"Format 1: VP[%d] enabled - status %d - with "
"port id %02x%02x%02x.\n", rptid_entry->vp_idx,
rptid_entry->vp_status,
rptid_entry->port_id[2], rptid_entry->port_id[1],
rptid_entry->port_id[0]);
ql_dbg(ql_dbg_async, vha, 0x5075,
"Format 1: Remote WWPN %8phC.\n",
rptid_entry->u.f1.port_name);
ql_dbg(ql_dbg_async, vha, 0x5075,
"Format 1: WWPN %8phC.\n",
vha->port_name);
switch (rptid_entry->u.f1.flags & TOPO_MASK) {
case TOPO_N2N:
ha->current_topology = ISP_CFG_N;
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
fcport->scan_state = QLA_FCPORT_SCAN;
fcport->n2n_flag = 0;
}
id.b24 = 0;
if (wwn_to_u64(vha->port_name) >
wwn_to_u64(rptid_entry->u.f1.port_name)) {
vha->d_id.b24 = 0;
vha->d_id.b.al_pa = 1;
ha->flags.n2n_bigger = 1;
id.b.al_pa = 2;
ql_dbg(ql_dbg_async, vha, 0x5075,
"Format 1: assign local id %x remote id %x\n",
vha->d_id.b24, id.b24);
} else {
ql_dbg(ql_dbg_async, vha, 0x5075,
"Format 1: Remote login - Waiting for WWPN %8phC.\n",
rptid_entry->u.f1.port_name);
ha->flags.n2n_bigger = 0;
}
fcport = qla2x00_find_fcport_by_wwpn(vha,
rptid_entry->u.f1.port_name, 1);
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
if (fcport) {
fcport->plogi_nack_done_deadline = jiffies + HZ;
fcport->dm_login_expire = jiffies +
QLA_N2N_WAIT_TIME * HZ;
fcport->scan_state = QLA_FCPORT_FOUND;
fcport->n2n_flag = 1;
fcport->keep_nport_handle = 1;
fcport->login_retry = vha->hw->login_retry_count;
fcport->fc4_type = FS_FC4TYPE_FCP;
if (vha->flags.nvme_enabled)
fcport->fc4_type |= FS_FC4TYPE_NVME;
if (wwn_to_u64(vha->port_name) >
wwn_to_u64(fcport->port_name)) {
fcport->d_id = id;
}
switch (fcport->disc_state) {
case DSC_DELETED:
set_bit(RELOGIN_NEEDED,
&vha->dpc_flags);
break;
case DSC_DELETE_PEND:
break;
default:
qlt_schedule_sess_for_deletion(fcport);
break;
}
} else {
qla24xx_post_newsess_work(vha, &id,
rptid_entry->u.f1.port_name,
rptid_entry->u.f1.node_name,
NULL,
FS_FCP_IS_N2N);
}
/* if our portname is higher then initiate N2N login */
set_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags);
return;
case TOPO_FL:
ha->current_topology = ISP_CFG_FL;
break;
case TOPO_F:
ha->current_topology = ISP_CFG_F;
break;
default:
break;
}
ha->flags.gpsc_supported = 1;
ha->current_topology = ISP_CFG_F;
/* buffer to buffer credit flag */
vha->flags.bbcr_enable = (rptid_entry->u.f1.bbcr & 0xf) != 0;
if (rptid_entry->vp_idx == 0) {
if (rptid_entry->vp_status == VP_STAT_COMPL) {
/* FA-WWN is only for physical port */
if (qla_ini_mode_enabled(vha) &&
ha->flags.fawwpn_enabled &&
(rptid_entry->u.f1.flags &
BIT_6)) {
memcpy(vha->port_name,
rptid_entry->u.f1.port_name,
WWN_SIZE);
}
qla_update_host_map(vha, id);
}
set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
} else {
if (rptid_entry->vp_status != VP_STAT_COMPL &&
rptid_entry->vp_status != VP_STAT_ID_CHG) {
ql_dbg(ql_dbg_mbx, vha, 0x10ba,
"Could not acquire ID for VP[%d].\n",
rptid_entry->vp_idx);
return;
}
found = 0;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry(vp, &ha->vp_list, list) {
if (rptid_entry->vp_idx == vp->vp_idx) {
found = 1;
break;
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
if (!found)
return;
qla_update_host_map(vp, id);
/*
* Cannot configure here as we are still sitting on the
* response queue. Handle it in dpc context.
*/
set_bit(VP_IDX_ACQUIRED, &vp->vp_flags);
set_bit(REGISTER_FC4_NEEDED, &vp->dpc_flags);
set_bit(REGISTER_FDMI_NEEDED, &vp->dpc_flags);
}
set_bit(VP_DPC_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else if (rptid_entry->format == 2) {
ql_dbg(ql_dbg_async, vha, 0x505f,
"RIDA: format 2/N2N Primary port id %02x%02x%02x.\n",
rptid_entry->port_id[2], rptid_entry->port_id[1],
rptid_entry->port_id[0]);
ql_dbg(ql_dbg_async, vha, 0x5075,
"N2N: Remote WWPN %8phC.\n",
rptid_entry->u.f2.port_name);
/* N2N. direct connect */
ha->current_topology = ISP_CFG_N;
ha->flags.rida_fmt2 = 1;
vha->d_id.b.domain = rptid_entry->port_id[2];
vha->d_id.b.area = rptid_entry->port_id[1];
vha->d_id.b.al_pa = rptid_entry->port_id[0];
ha->flags.n2n_ae = 1;
spin_lock_irqsave(&ha->vport_slock, flags);
qla_update_vp_map(vha, SET_AL_PA);
spin_unlock_irqrestore(&ha->vport_slock, flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
fcport->scan_state = QLA_FCPORT_SCAN;
fcport->n2n_flag = 0;
}
fcport = qla2x00_find_fcport_by_wwpn(vha,
rptid_entry->u.f2.port_name, 1);
if (fcport) {
fcport->login_retry = vha->hw->login_retry_count;
fcport->plogi_nack_done_deadline = jiffies + HZ;
fcport->scan_state = QLA_FCPORT_FOUND;
fcport->keep_nport_handle = 1;
fcport->n2n_flag = 1;
fcport->d_id.b.domain =
rptid_entry->u.f2.remote_nport_id[2];
fcport->d_id.b.area =
rptid_entry->u.f2.remote_nport_id[1];
fcport->d_id.b.al_pa =
rptid_entry->u.f2.remote_nport_id[0];
/*
* For the case where remote port sending PRLO, FW
* sends up RIDA Format 2 as an indication of session
* loss. In other word, FW state change from PRLI
* complete back to PLOGI complete. Delete the
* session and let relogin drive the reconnect.
*/
if (atomic_read(&fcport->state) == FCS_ONLINE)
qlt_schedule_sess_for_deletion(fcport);
}
}
}
/*
* qla24xx_modify_vp_config
* Change VP configuration for vha
*
* Input:
* vha = adapter block pointer.
*
* Returns:
* qla2xxx local function return status code.
*
* Context:
* Kernel context.
*/
int
qla24xx_modify_vp_config(scsi_qla_host_t *vha)
{
int rval;
struct vp_config_entry_24xx *vpmod;
dma_addr_t vpmod_dma;
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
/* This can be called by the parent */
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10bb,
"Entered %s.\n", __func__);
vpmod = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &vpmod_dma);
if (!vpmod) {
ql_log(ql_log_warn, vha, 0x10bc,
"Failed to allocate modify VP IOCB.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
vpmod->entry_type = VP_CONFIG_IOCB_TYPE;
vpmod->entry_count = 1;
vpmod->command = VCT_COMMAND_MOD_ENABLE_VPS;
vpmod->vp_count = 1;
vpmod->vp_index1 = vha->vp_idx;
vpmod->options_idx1 = BIT_3|BIT_4|BIT_5;
qlt_modify_vp_config(vha, vpmod);
memcpy(vpmod->node_name_idx1, vha->node_name, WWN_SIZE);
memcpy(vpmod->port_name_idx1, vha->port_name, WWN_SIZE);
vpmod->entry_count = 1;
rval = qla2x00_issue_iocb(base_vha, vpmod, vpmod_dma, 0);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10bd,
"Failed to issue VP config IOCB (%x).\n", rval);
} else if (vpmod->comp_status != 0) {
ql_dbg(ql_dbg_mbx, vha, 0x10be,
"Failed to complete IOCB -- error status (%x).\n",
vpmod->comp_status);
rval = QLA_FUNCTION_FAILED;
} else if (vpmod->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_dbg(ql_dbg_mbx, vha, 0x10bf,
"Failed to complete IOCB -- completion status (%x).\n",
le16_to_cpu(vpmod->comp_status));
rval = QLA_FUNCTION_FAILED;
} else {
/* EMPTY */
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c0,
"Done %s.\n", __func__);
fc_vport_set_state(vha->fc_vport, FC_VPORT_INITIALIZING);
}
dma_pool_free(ha->s_dma_pool, vpmod, vpmod_dma);
return rval;
}
/*
* qla2x00_send_change_request
* Receive or disable RSCN request from fabric controller
*
* Input:
* ha = adapter block pointer
* format = registration format:
* 0 - Reserved
* 1 - Fabric detected registration
* 2 - N_port detected registration
* 3 - Full registration
* FF - clear registration
* vp_idx = Virtual port index
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel Context
*/
int
qla2x00_send_change_request(scsi_qla_host_t *vha, uint16_t format,
uint16_t vp_idx)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c7,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_SEND_CHANGE_REQUEST;
mcp->mb[1] = format;
mcp->mb[9] = vp_idx;
mcp->out_mb = MBX_9|MBX_1|MBX_0;
mcp->in_mb = MBX_0|MBX_1;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval == QLA_SUCCESS) {
if (mcp->mb[0] != MBS_COMMAND_COMPLETE) {
rval = BIT_1;
}
} else
rval = BIT_1;
return rval;
}
int
qla2x00_dump_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t addr,
uint32_t size)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1009,
"Entered %s.\n", __func__);
if (MSW(addr) || IS_FWI2_CAPABLE(vha->hw)) {
mcp->mb[0] = MBC_DUMP_RISC_RAM_EXTENDED;
mcp->mb[8] = MSW(addr);
mcp->mb[10] = 0;
mcp->out_mb = MBX_10|MBX_8|MBX_0;
} else {
mcp->mb[0] = MBC_DUMP_RISC_RAM;
mcp->out_mb = MBX_0;
}
mcp->mb[1] = LSW(addr);
mcp->mb[2] = MSW(req_dma);
mcp->mb[3] = LSW(req_dma);
mcp->mb[6] = MSW(MSD(req_dma));
mcp->mb[7] = LSW(MSD(req_dma));
mcp->out_mb |= MBX_7|MBX_6|MBX_3|MBX_2|MBX_1;
if (IS_FWI2_CAPABLE(vha->hw)) {
mcp->mb[4] = MSW(size);
mcp->mb[5] = LSW(size);
mcp->out_mb |= MBX_5|MBX_4;
} else {
mcp->mb[4] = LSW(size);
mcp->out_mb |= MBX_4;
}
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1008,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1007,
"Done %s.\n", __func__);
}
return rval;
}
/* 84XX Support **************************************************************/
struct cs84xx_mgmt_cmd {
union {
struct verify_chip_entry_84xx req;
struct verify_chip_rsp_84xx rsp;
} p;
};
int
qla84xx_verify_chip(struct scsi_qla_host *vha, uint16_t *status)
{
int rval, retry;
struct cs84xx_mgmt_cmd *mn;
dma_addr_t mn_dma;
uint16_t options;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c8,
"Entered %s.\n", __func__);
mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
if (mn == NULL) {
return QLA_MEMORY_ALLOC_FAILED;
}
/* Force Update? */
options = ha->cs84xx->fw_update ? VCO_FORCE_UPDATE : 0;
/* Diagnostic firmware? */
/* options |= MENLO_DIAG_FW; */
/* We update the firmware with only one data sequence. */
options |= VCO_END_OF_DATA;
do {
retry = 0;
memset(mn, 0, sizeof(*mn));
mn->p.req.entry_type = VERIFY_CHIP_IOCB_TYPE;
mn->p.req.entry_count = 1;
mn->p.req.options = cpu_to_le16(options);
ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x111c,
"Dump of Verify Request.\n");
ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x111e,
mn, sizeof(*mn));
rval = qla2x00_issue_iocb_timeout(vha, mn, mn_dma, 0, 120);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10cb,
"Failed to issue verify IOCB (%x).\n", rval);
goto verify_done;
}
ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1110,
"Dump of Verify Response.\n");
ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1118,
mn, sizeof(*mn));
status[0] = le16_to_cpu(mn->p.rsp.comp_status);
status[1] = status[0] == CS_VCS_CHIP_FAILURE ?
le16_to_cpu(mn->p.rsp.failure_code) : 0;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ce,
"cs=%x fc=%x.\n", status[0], status[1]);
if (status[0] != CS_COMPLETE) {
rval = QLA_FUNCTION_FAILED;
if (!(options & VCO_DONT_UPDATE_FW)) {
ql_dbg(ql_dbg_mbx, vha, 0x10cf,
"Firmware update failed. Retrying "
"without update firmware.\n");
options |= VCO_DONT_UPDATE_FW;
options &= ~VCO_FORCE_UPDATE;
retry = 1;
}
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d0,
"Firmware updated to %x.\n",
le32_to_cpu(mn->p.rsp.fw_ver));
/* NOTE: we only update OP firmware. */
spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
ha->cs84xx->op_fw_version =
le32_to_cpu(mn->p.rsp.fw_ver);
spin_unlock_irqrestore(&ha->cs84xx->access_lock,
flags);
}
} while (retry);
verify_done:
dma_pool_free(ha->s_dma_pool, mn, mn_dma);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10d1,
"Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d2,
"Done %s.\n", __func__);
}
return rval;
}
int
qla25xx_init_req_que(struct scsi_qla_host *vha, struct req_que *req)
{
int rval;
unsigned long flags;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!ha->flags.fw_started)
return QLA_SUCCESS;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d3,
"Entered %s.\n", __func__);
if (IS_SHADOW_REG_CAPABLE(ha))
req->options |= BIT_13;
mcp->mb[0] = MBC_INITIALIZE_MULTIQ;
mcp->mb[1] = req->options;
mcp->mb[2] = MSW(LSD(req->dma));
mcp->mb[3] = LSW(LSD(req->dma));
mcp->mb[6] = MSW(MSD(req->dma));
mcp->mb[7] = LSW(MSD(req->dma));
mcp->mb[5] = req->length;
if (req->rsp)
mcp->mb[10] = req->rsp->id;
mcp->mb[12] = req->qos;
mcp->mb[11] = req->vp_idx;
mcp->mb[13] = req->rid;
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
mcp->mb[15] = 0;
mcp->mb[4] = req->id;
/* que in ptr index */
mcp->mb[8] = 0;
/* que out ptr index */
mcp->mb[9] = *req->out_ptr = 0;
mcp->out_mb = MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|MBX_7|
MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->flags = MBX_DMA_OUT;
mcp->tov = MBX_TOV_SECONDS * 2;
if (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha))
mcp->in_mb |= MBX_1;
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
mcp->out_mb |= MBX_15;
/* debug q create issue in SR-IOV */
mcp->in_mb |= MBX_9 | MBX_8 | MBX_7;
}
spin_lock_irqsave(&ha->hardware_lock, flags);
if (!(req->options & BIT_0)) {
wrt_reg_dword(req->req_q_in, 0);
if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
wrt_reg_dword(req->req_q_out, 0);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10d4,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d5,
"Done %s.\n", __func__);
}
return rval;
}
int
qla25xx_init_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
{
int rval;
unsigned long flags;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!ha->flags.fw_started)
return QLA_SUCCESS;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d6,
"Entered %s.\n", __func__);
if (IS_SHADOW_REG_CAPABLE(ha))
rsp->options |= BIT_13;
mcp->mb[0] = MBC_INITIALIZE_MULTIQ;
mcp->mb[1] = rsp->options;
mcp->mb[2] = MSW(LSD(rsp->dma));
mcp->mb[3] = LSW(LSD(rsp->dma));
mcp->mb[6] = MSW(MSD(rsp->dma));
mcp->mb[7] = LSW(MSD(rsp->dma));
mcp->mb[5] = rsp->length;
mcp->mb[14] = rsp->msix->entry;
mcp->mb[13] = rsp->rid;
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
mcp->mb[15] = 0;
mcp->mb[4] = rsp->id;
/* que in ptr index */
mcp->mb[8] = *rsp->in_ptr = 0;
/* que out ptr index */
mcp->mb[9] = 0;
mcp->out_mb = MBX_14|MBX_13|MBX_9|MBX_8|MBX_7
|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->flags = MBX_DMA_OUT;
mcp->tov = MBX_TOV_SECONDS * 2;
if (IS_QLA81XX(ha)) {
mcp->out_mb |= MBX_12|MBX_11|MBX_10;
mcp->in_mb |= MBX_1;
} else if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
mcp->out_mb |= MBX_15|MBX_12|MBX_11|MBX_10;
mcp->in_mb |= MBX_1;
/* debug q create issue in SR-IOV */
mcp->in_mb |= MBX_9 | MBX_8 | MBX_7;
}
spin_lock_irqsave(&ha->hardware_lock, flags);
if (!(rsp->options & BIT_0)) {
wrt_reg_dword(rsp->rsp_q_out, 0);
if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
wrt_reg_dword(rsp->rsp_q_in, 0);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10d7,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d8,
"Done %s.\n", __func__);
}
return rval;
}
int
qla81xx_idc_ack(scsi_qla_host_t *vha, uint16_t *mb)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d9,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_IDC_ACK;
memcpy(&mcp->mb[1], mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
mcp->out_mb = MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10da,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10db,
"Done %s.\n", __func__);
}
return rval;
}
int
qla81xx_fac_get_sector_size(scsi_qla_host_t *vha, uint32_t *sector_size)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10dc,
"Entered %s.\n", __func__);
if (!IS_QLA81XX(vha->hw) && !IS_QLA83XX(vha->hw) &&
!IS_QLA27XX(vha->hw) && !IS_QLA28XX(vha->hw))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_FLASH_ACCESS_CTRL;
mcp->mb[1] = FAC_OPT_CMD_GET_SECTOR_SIZE;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10dd,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10de,
"Done %s.\n", __func__);
*sector_size = mcp->mb[1];
}
return rval;
}
int
qla81xx_fac_do_write_enable(scsi_qla_host_t *vha, int enable)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA81XX(vha->hw) && !IS_QLA83XX(vha->hw) &&
!IS_QLA27XX(vha->hw) && !IS_QLA28XX(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10df,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_FLASH_ACCESS_CTRL;
mcp->mb[1] = enable ? FAC_OPT_CMD_WRITE_ENABLE :
FAC_OPT_CMD_WRITE_PROTECT;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10e0,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e1,
"Done %s.\n", __func__);
}
return rval;
}
int
qla81xx_fac_erase_sector(scsi_qla_host_t *vha, uint32_t start, uint32_t finish)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA81XX(vha->hw) && !IS_QLA83XX(vha->hw) &&
!IS_QLA27XX(vha->hw) && !IS_QLA28XX(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e2,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_FLASH_ACCESS_CTRL;
mcp->mb[1] = FAC_OPT_CMD_ERASE_SECTOR;
mcp->mb[2] = LSW(start);
mcp->mb[3] = MSW(start);
mcp->mb[4] = LSW(finish);
mcp->mb[5] = MSW(finish);
mcp->out_mb = MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10e3,
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e4,
"Done %s.\n", __func__);
}
return rval;
}
int
qla81xx_fac_semaphore_access(scsi_qla_host_t *vha, int lock)
{
int rval = QLA_SUCCESS;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return rval;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e2,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_FLASH_ACCESS_CTRL;
mcp->mb[1] = (lock ? FAC_OPT_CMD_LOCK_SEMAPHORE :
FAC_OPT_CMD_UNLOCK_SEMAPHORE);
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10e3,
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e4,
"Done %s.\n", __func__);
}
return rval;
}
int
qla81xx_restart_mpi_firmware(scsi_qla_host_t *vha)
{
int rval = 0;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e5,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_RESTART_MPI_FW;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_0|MBX_1;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10e6,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e7,
"Done %s.\n", __func__);
}
return rval;
}
int
qla82xx_set_driver_version(scsi_qla_host_t *vha, char *version)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
int i;
int len;
__le16 *str;
struct qla_hw_data *ha = vha->hw;
if (!IS_P3P_TYPE(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x117b,
"Entered %s.\n", __func__);
str = (__force __le16 *)version;
len = strlen(version);
mcp->mb[0] = MBC_SET_RNID_PARAMS;
mcp->mb[1] = RNID_TYPE_SET_VERSION << 8;
mcp->out_mb = MBX_1|MBX_0;
for (i = 4; i < 16 && len; i++, str++, len -= 2) {
mcp->mb[i] = le16_to_cpup(str);
mcp->out_mb |= 1<<i;
}
for (; i < 16; i++) {
mcp->mb[i] = 0;
mcp->out_mb |= 1<<i;
}
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x117c,
"Failed=%x mb[0]=%x,%x.\n", rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x117d,
"Done %s.\n", __func__);
}
return rval;
}
int
qla25xx_set_driver_version(scsi_qla_host_t *vha, char *version)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
int len;
uint16_t dwlen;
uint8_t *str;
dma_addr_t str_dma;
struct qla_hw_data *ha = vha->hw;
if (!IS_FWI2_CAPABLE(ha) || IS_QLA24XX_TYPE(ha) || IS_QLA81XX(ha) ||
IS_P3P_TYPE(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x117e,
"Entered %s.\n", __func__);
str = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &str_dma);
if (!str) {
ql_log(ql_log_warn, vha, 0x117f,
"Failed to allocate driver version param.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
memcpy(str, "\x7\x3\x11\x0", 4);
dwlen = str[0];
len = dwlen * 4 - 4;
memset(str + 4, 0, len);
if (len > strlen(version))
len = strlen(version);
memcpy(str + 4, version, len);
mcp->mb[0] = MBC_SET_RNID_PARAMS;
mcp->mb[1] = RNID_TYPE_SET_VERSION << 8 | dwlen;
mcp->mb[2] = MSW(LSD(str_dma));
mcp->mb[3] = LSW(LSD(str_dma));
mcp->mb[6] = MSW(MSD(str_dma));
mcp->mb[7] = LSW(MSD(str_dma));
mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1180,
"Failed=%x mb[0]=%x,%x.\n", rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1181,
"Done %s.\n", __func__);
}
dma_pool_free(ha->s_dma_pool, str, str_dma);
return rval;
}
int
qla24xx_get_port_login_templ(scsi_qla_host_t *vha, dma_addr_t buf_dma,
void *buf, uint16_t bufsiz)
{
int rval, i;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
uint32_t *bp;
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1159,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_RNID_PARAMS;
mcp->mb[1] = RNID_TYPE_PORT_LOGIN << 8;
mcp->mb[2] = MSW(buf_dma);
mcp->mb[3] = LSW(buf_dma);
mcp->mb[6] = MSW(MSD(buf_dma));
mcp->mb[7] = LSW(MSD(buf_dma));
mcp->mb[8] = bufsiz/4;
mcp->out_mb = MBX_8|MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x115a,
"Failed=%x mb[0]=%x,%x.\n", rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x115b,
"Done %s.\n", __func__);
bp = (uint32_t *) buf;
for (i = 0; i < (bufsiz-4)/4; i++, bp++)
*bp = le32_to_cpu((__force __le32)*bp);
}
return rval;
}
#define PUREX_CMD_COUNT 4
int
qla25xx_set_els_cmds_supported(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
uint8_t *els_cmd_map;
uint8_t active_cnt = 0;
dma_addr_t els_cmd_map_dma;
uint8_t cmd_opcode[PUREX_CMD_COUNT];
uint8_t i, index, purex_bit;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA25XX(ha) && !IS_QLA2031(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return QLA_SUCCESS;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1197,
"Entered %s.\n", __func__);
els_cmd_map = dma_alloc_coherent(&ha->pdev->dev, ELS_CMD_MAP_SIZE,
&els_cmd_map_dma, GFP_KERNEL);
if (!els_cmd_map) {
ql_log(ql_log_warn, vha, 0x7101,
"Failed to allocate RDP els command param.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
/* List of Purex ELS */
if (ql2xrdpenable) {
cmd_opcode[active_cnt] = ELS_RDP;
active_cnt++;
}
if (ha->flags.scm_supported_f) {
cmd_opcode[active_cnt] = ELS_FPIN;
active_cnt++;
}
if (ha->flags.edif_enabled) {
cmd_opcode[active_cnt] = ELS_AUTH_ELS;
active_cnt++;
}
for (i = 0; i < active_cnt; i++) {
index = cmd_opcode[i] / 8;
purex_bit = cmd_opcode[i] % 8;
els_cmd_map[index] |= 1 << purex_bit;
}
mcp->mb[0] = MBC_SET_RNID_PARAMS;
mcp->mb[1] = RNID_TYPE_ELS_CMD << 8;
mcp->mb[2] = MSW(LSD(els_cmd_map_dma));
mcp->mb[3] = LSW(LSD(els_cmd_map_dma));
mcp->mb[6] = MSW(MSD(els_cmd_map_dma));
mcp->mb[7] = LSW(MSD(els_cmd_map_dma));
mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = MBX_DMA_OUT;
mcp->buf_size = ELS_CMD_MAP_SIZE;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x118d,
"Failed=%x (%x,%x).\n", rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x118c,
"Done %s.\n", __func__);
}
dma_free_coherent(&ha->pdev->dev, ELS_CMD_MAP_SIZE,
els_cmd_map, els_cmd_map_dma);
return rval;
}
static int
qla2x00_read_asic_temperature(scsi_qla_host_t *vha, uint16_t *temp)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1159,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_RNID_PARAMS;
mcp->mb[1] = RNID_TYPE_ASIC_TEMP << 8;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
*temp = mcp->mb[1];
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x115a,
"Failed=%x mb[0]=%x,%x.\n", rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x115b,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_read_sfp(scsi_qla_host_t *vha, dma_addr_t sfp_dma, uint8_t *sfp,
uint16_t dev, uint16_t off, uint16_t len, uint16_t opt)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e8,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
if (len == 1)
opt |= BIT_0;
mcp->mb[0] = MBC_READ_SFP;
mcp->mb[1] = dev;
mcp->mb[2] = MSW(LSD(sfp_dma));
mcp->mb[3] = LSW(LSD(sfp_dma));
mcp->mb[6] = MSW(MSD(sfp_dma));
mcp->mb[7] = LSW(MSD(sfp_dma));
mcp->mb[8] = len;
mcp->mb[9] = off;
mcp->mb[10] = opt;
mcp->out_mb = MBX_10|MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (opt & BIT_0)
*sfp = mcp->mb[1];
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10e9,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
if (mcp->mb[0] == MBS_COMMAND_ERROR && mcp->mb[1] == 0x22) {
/* sfp is not there */
rval = QLA_INTERFACE_ERROR;
}
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ea,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_write_sfp(scsi_qla_host_t *vha, dma_addr_t sfp_dma, uint8_t *sfp,
uint16_t dev, uint16_t off, uint16_t len, uint16_t opt)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10eb,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
if (len == 1)
opt |= BIT_0;
if (opt & BIT_0)
len = *sfp;
mcp->mb[0] = MBC_WRITE_SFP;
mcp->mb[1] = dev;
mcp->mb[2] = MSW(LSD(sfp_dma));
mcp->mb[3] = LSW(LSD(sfp_dma));
mcp->mb[6] = MSW(MSD(sfp_dma));
mcp->mb[7] = LSW(MSD(sfp_dma));
mcp->mb[8] = len;
mcp->mb[9] = off;
mcp->mb[10] = opt;
mcp->out_mb = MBX_10|MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10ec,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ed,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_get_xgmac_stats(scsi_qla_host_t *vha, dma_addr_t stats_dma,
uint16_t size_in_bytes, uint16_t *actual_size)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ee,
"Entered %s.\n", __func__);
if (!IS_CNA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_GET_XGMAC_STATS;
mcp->mb[2] = MSW(stats_dma);
mcp->mb[3] = LSW(stats_dma);
mcp->mb[6] = MSW(MSD(stats_dma));
mcp->mb[7] = LSW(MSD(stats_dma));
mcp->mb[8] = size_in_bytes >> 2;
mcp->out_mb = MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_0;
mcp->in_mb = MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10ef,
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f0,
"Done %s.\n", __func__);
*actual_size = mcp->mb[2] << 2;
}
return rval;
}
int
qla2x00_get_dcbx_params(scsi_qla_host_t *vha, dma_addr_t tlv_dma,
uint16_t size)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f1,
"Entered %s.\n", __func__);
if (!IS_CNA_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_GET_DCBX_PARAMS;
mcp->mb[1] = 0;
mcp->mb[2] = MSW(tlv_dma);
mcp->mb[3] = LSW(tlv_dma);
mcp->mb[6] = MSW(MSD(tlv_dma));
mcp->mb[7] = LSW(MSD(tlv_dma));
mcp->mb[8] = size;
mcp->out_mb = MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10f2,
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f3,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_read_ram_word(scsi_qla_host_t *vha, uint32_t risc_addr, uint32_t *data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f4,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_READ_RAM_EXTENDED;
mcp->mb[1] = LSW(risc_addr);
mcp->mb[8] = MSW(risc_addr);
mcp->out_mb = MBX_8|MBX_1|MBX_0;
mcp->in_mb = MBX_3|MBX_2|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10f5,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f6,
"Done %s.\n", __func__);
*data = mcp->mb[3] << 16 | mcp->mb[2];
}
return rval;
}
int
qla2x00_loopback_test(scsi_qla_host_t *vha, struct msg_echo_lb *mreq,
uint16_t *mresp)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f7,
"Entered %s.\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_DIAGNOSTIC_LOOP_BACK;
mcp->mb[1] = mreq->options | BIT_6; // BIT_6 specifies 64 bit addressing
/* transfer count */
mcp->mb[10] = LSW(mreq->transfer_size);
mcp->mb[11] = MSW(mreq->transfer_size);
/* send data address */
mcp->mb[14] = LSW(mreq->send_dma);
mcp->mb[15] = MSW(mreq->send_dma);
mcp->mb[20] = LSW(MSD(mreq->send_dma));
mcp->mb[21] = MSW(MSD(mreq->send_dma));
/* receive data address */
mcp->mb[16] = LSW(mreq->rcv_dma);
mcp->mb[17] = MSW(mreq->rcv_dma);
mcp->mb[6] = LSW(MSD(mreq->rcv_dma));
mcp->mb[7] = MSW(MSD(mreq->rcv_dma));
/* Iteration count */
mcp->mb[18] = LSW(mreq->iteration_count);
mcp->mb[19] = MSW(mreq->iteration_count);
mcp->out_mb = MBX_21|MBX_20|MBX_19|MBX_18|MBX_17|MBX_16|MBX_15|
MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_7|MBX_6|MBX_1|MBX_0;
if (IS_CNA_CAPABLE(vha->hw))
mcp->out_mb |= MBX_2;
mcp->in_mb = MBX_19|MBX_18|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->buf_size = mreq->transfer_size;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = MBX_DMA_OUT|MBX_DMA_IN|IOCTL_CMD;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10f8,
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[3]=%x mb[18]=%x "
"mb[19]=%x.\n", rval, mcp->mb[0], mcp->mb[1], mcp->mb[2],
mcp->mb[3], mcp->mb[18], mcp->mb[19]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10f9,
"Done %s.\n", __func__);
}
/* Copy mailbox information */
memcpy( mresp, mcp->mb, 64);
return rval;
}
int
qla2x00_echo_test(scsi_qla_host_t *vha, struct msg_echo_lb *mreq,
uint16_t *mresp)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10fa,
"Entered %s.\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_DIAGNOSTIC_ECHO;
/* BIT_6 specifies 64bit address */
mcp->mb[1] = mreq->options | BIT_15 | BIT_6;
if (IS_CNA_CAPABLE(ha)) {
mcp->mb[2] = vha->fcoe_fcf_idx;
}
mcp->mb[16] = LSW(mreq->rcv_dma);
mcp->mb[17] = MSW(mreq->rcv_dma);
mcp->mb[6] = LSW(MSD(mreq->rcv_dma));
mcp->mb[7] = MSW(MSD(mreq->rcv_dma));
mcp->mb[10] = LSW(mreq->transfer_size);
mcp->mb[14] = LSW(mreq->send_dma);
mcp->mb[15] = MSW(mreq->send_dma);
mcp->mb[20] = LSW(MSD(mreq->send_dma));
mcp->mb[21] = MSW(MSD(mreq->send_dma));
mcp->out_mb = MBX_21|MBX_20|MBX_17|MBX_16|MBX_15|
MBX_14|MBX_10|MBX_7|MBX_6|MBX_1|MBX_0;
if (IS_CNA_CAPABLE(ha))
mcp->out_mb |= MBX_2;
mcp->in_mb = MBX_0;
if (IS_CNA_CAPABLE(ha) || IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) ||
IS_QLA2031(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
mcp->in_mb |= MBX_1;
if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha))
mcp->in_mb |= MBX_3;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = MBX_DMA_OUT|MBX_DMA_IN|IOCTL_CMD;
mcp->buf_size = mreq->transfer_size;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10fb,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10fc,
"Done %s.\n", __func__);
}
/* Copy mailbox information */
memcpy(mresp, mcp->mb, 64);
return rval;
}
int
qla84xx_reset_chip(scsi_qla_host_t *vha, uint16_t enable_diagnostic)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10fd,
"Entered %s enable_diag=%d.\n", __func__, enable_diagnostic);
mcp->mb[0] = MBC_ISP84XX_RESET;
mcp->mb[1] = enable_diagnostic;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = MBX_DMA_OUT|MBX_DMA_IN|IOCTL_CMD;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS)
ql_dbg(ql_dbg_mbx, vha, 0x10fe, "Failed=%x.\n", rval);
else
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ff,
"Done %s.\n", __func__);
return rval;
}
int
qla2x00_write_ram_word(scsi_qla_host_t *vha, uint32_t risc_addr, uint32_t data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1100,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_WRITE_RAM_WORD_EXTENDED;
mcp->mb[1] = LSW(risc_addr);
mcp->mb[2] = LSW(data);
mcp->mb[3] = MSW(data);
mcp->mb[8] = MSW(risc_addr);
mcp->out_mb = MBX_8|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1101,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1102,
"Done %s.\n", __func__);
}
return rval;
}
int
qla81xx_write_mpi_register(scsi_qla_host_t *vha, uint16_t *mb)
{
int rval;
uint32_t stat, timer;
uint16_t mb0 = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
rval = QLA_SUCCESS;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1103,
"Entered %s.\n", __func__);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
/* Write the MBC data to the registers */
wrt_reg_word(®->mailbox0, MBC_WRITE_MPI_REGISTER);
wrt_reg_word(®->mailbox1, mb[0]);
wrt_reg_word(®->mailbox2, mb[1]);
wrt_reg_word(®->mailbox3, mb[2]);
wrt_reg_word(®->mailbox4, mb[3]);
wrt_reg_dword(®->hccr, HCCRX_SET_HOST_INT);
/* Poll for MBC interrupt */
for (timer = 6000000; timer; timer--) {
/* Check for pending interrupts. */
stat = rd_reg_dword(®->host_status);
if (stat & HSRX_RISC_INT) {
stat &= 0xff;
if (stat == 0x1 || stat == 0x2 ||
stat == 0x10 || stat == 0x11) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = rd_reg_word(®->mailbox0);
wrt_reg_dword(®->hccr,
HCCRX_CLR_RISC_INT);
rd_reg_dword(®->hccr);
break;
}
}
udelay(5);
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags))
rval = mb0 & MBS_MASK;
else
rval = QLA_FUNCTION_FAILED;
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1104,
"Failed=%x mb[0]=%x.\n", rval, mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1105,
"Done %s.\n", __func__);
}
return rval;
}
/* Set the specified data rate */
int
qla2x00_set_data_rate(scsi_qla_host_t *vha, uint16_t mode)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
uint16_t val;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1106,
"Entered %s speed:0x%x mode:0x%x.\n", __func__, ha->set_data_rate,
mode);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
memset(mcp, 0, sizeof(*mcp));
switch (ha->set_data_rate) {
case PORT_SPEED_AUTO:
case PORT_SPEED_4GB:
case PORT_SPEED_8GB:
case PORT_SPEED_16GB:
case PORT_SPEED_32GB:
val = ha->set_data_rate;
break;
default:
ql_log(ql_log_warn, vha, 0x1199,
"Unrecognized speed setting:%d. Setting Autoneg\n",
ha->set_data_rate);
val = ha->set_data_rate = PORT_SPEED_AUTO;
break;
}
mcp->mb[0] = MBC_DATA_RATE;
mcp->mb[1] = mode;
mcp->mb[2] = val;
mcp->out_mb = MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_2|MBX_1|MBX_0;
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
mcp->in_mb |= MBX_4|MBX_3;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1107,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
if (mcp->mb[1] != 0x7)
ql_dbg(ql_dbg_mbx, vha, 0x1179,
"Speed set:0x%x\n", mcp->mb[1]);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1108,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_get_data_rate(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1106,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_DATA_RATE;
mcp->mb[1] = QLA_GET_DATA_RATE;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_2|MBX_1|MBX_0;
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
mcp->in_mb |= MBX_4|MBX_3;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1107,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
if (mcp->mb[1] != 0x7)
ha->link_data_rate = mcp->mb[1];
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
if (mcp->mb[4] & BIT_0)
ql_log(ql_log_info, vha, 0x11a2,
"FEC=enabled (data rate).\n");
}
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1108,
"Done %s.\n", __func__);
if (mcp->mb[1] != 0x7)
ha->link_data_rate = mcp->mb[1];
}
return rval;
}
int
qla81xx_get_port_config(scsi_qla_host_t *vha, uint16_t *mb)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1109,
"Entered %s.\n", __func__);
if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha) && !IS_QLA8044(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_GET_PORT_CONFIG;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x110a,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
/* Copy all bits to preserve original value */
memcpy(mb, &mcp->mb[1], sizeof(uint16_t) * 4);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x110b,
"Done %s.\n", __func__);
}
return rval;
}
int
qla81xx_set_port_config(scsi_qla_host_t *vha, uint16_t *mb)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x110c,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_SET_PORT_CONFIG;
/* Copy all bits to preserve original setting */
memcpy(&mcp->mb[1], mb, sizeof(uint16_t) * 4);
mcp->out_mb = MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x110d,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x110e,
"Done %s.\n", __func__);
return rval;
}
int
qla24xx_set_fcp_prio(scsi_qla_host_t *vha, uint16_t loop_id, uint16_t priority,
uint16_t *mb)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x110f,
"Entered %s.\n", __func__);
if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
return QLA_FUNCTION_FAILED;
mcp->mb[0] = MBC_PORT_PARAMS;
mcp->mb[1] = loop_id;
if (ha->flags.fcp_prio_enabled)
mcp->mb[2] = BIT_1;
else
mcp->mb[2] = BIT_2;
mcp->mb[4] = priority & 0xf;
mcp->mb[9] = vha->vp_idx;
mcp->out_mb = MBX_9|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_4|MBX_3|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (mb != NULL) {
mb[0] = mcp->mb[0];
mb[1] = mcp->mb[1];
mb[3] = mcp->mb[3];
mb[4] = mcp->mb[4];
}
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10cd, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10cc,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_get_thermal_temp(scsi_qla_host_t *vha, uint16_t *temp)
{
int rval = QLA_FUNCTION_FAILED;
struct qla_hw_data *ha = vha->hw;
uint8_t byte;
if (!IS_FWI2_CAPABLE(ha) || IS_QLA24XX_TYPE(ha) || IS_QLA81XX(ha)) {
ql_dbg(ql_dbg_mbx, vha, 0x1150,
"Thermal not supported by this card.\n");
return rval;
}
if (IS_QLA25XX(ha)) {
if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
ha->pdev->subsystem_device == 0x0175) {
rval = qla2x00_read_sfp(vha, 0, &byte,
0x98, 0x1, 1, BIT_13|BIT_0);
*temp = byte;
return rval;
}
if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
ha->pdev->subsystem_device == 0x338e) {
rval = qla2x00_read_sfp(vha, 0, &byte,
0x98, 0x1, 1, BIT_15|BIT_14|BIT_0);
*temp = byte;
return rval;
}
ql_dbg(ql_dbg_mbx, vha, 0x10c9,
"Thermal not supported by this card.\n");
return rval;
}
if (IS_QLA82XX(ha)) {
*temp = qla82xx_read_temperature(vha);
rval = QLA_SUCCESS;
return rval;
} else if (IS_QLA8044(ha)) {
*temp = qla8044_read_temperature(vha);
rval = QLA_SUCCESS;
return rval;
}
rval = qla2x00_read_asic_temperature(vha, temp);
return rval;
}
int
qla82xx_mbx_intr_enable(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1017,
"Entered %s.\n", __func__);
if (!IS_FWI2_CAPABLE(ha))
return QLA_FUNCTION_FAILED;
memset(mcp, 0, sizeof(mbx_cmd_t));
mcp->mb[0] = MBC_TOGGLE_INTERRUPT;
mcp->mb[1] = 1;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1016,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x100e,
"Done %s.\n", __func__);
}
return rval;
}
int
qla82xx_mbx_intr_disable(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x100d,
"Entered %s.\n", __func__);
if (!IS_P3P_TYPE(ha))
return QLA_FUNCTION_FAILED;
memset(mcp, 0, sizeof(mbx_cmd_t));
mcp->mb[0] = MBC_TOGGLE_INTERRUPT;
mcp->mb[1] = 0;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x100c,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x100b,
"Done %s.\n", __func__);
}
return rval;
}
int
qla82xx_md_get_template_size(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
int rval = QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x111f,
"Entered %s.\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = LSW(MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE);
mcp->mb[1] = MSW(MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE);
mcp->mb[2] = LSW(RQST_TMPLT_SIZE);
mcp->mb[3] = MSW(RQST_TMPLT_SIZE);
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->flags = MBX_DMA_OUT|MBX_DMA_IN|IOCTL_CMD;
mcp->tov = MBX_TOV_SECONDS;
rval = qla2x00_mailbox_command(vha, mcp);
/* Always copy back return mailbox values. */
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1120,
"mailbox command FAILED=0x%x, subcode=%x.\n",
(mcp->mb[1] << 16) | mcp->mb[0],
(mcp->mb[3] << 16) | mcp->mb[2]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1121,
"Done %s.\n", __func__);
ha->md_template_size = ((mcp->mb[3] << 16) | mcp->mb[2]);
if (!ha->md_template_size) {
ql_dbg(ql_dbg_mbx, vha, 0x1122,
"Null template size obtained.\n");
rval = QLA_FUNCTION_FAILED;
}
}
return rval;
}
int
qla82xx_md_get_template(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
int rval = QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1123,
"Entered %s.\n", __func__);
ha->md_tmplt_hdr = dma_alloc_coherent(&ha->pdev->dev,
ha->md_template_size, &ha->md_tmplt_hdr_dma, GFP_KERNEL);
if (!ha->md_tmplt_hdr) {
ql_log(ql_log_warn, vha, 0x1124,
"Unable to allocate memory for Minidump template.\n");
return rval;
}
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = LSW(MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE);
mcp->mb[1] = MSW(MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE);
mcp->mb[2] = LSW(RQST_TMPLT);
mcp->mb[3] = MSW(RQST_TMPLT);
mcp->mb[4] = LSW(LSD(ha->md_tmplt_hdr_dma));
mcp->mb[5] = MSW(LSD(ha->md_tmplt_hdr_dma));
mcp->mb[6] = LSW(MSD(ha->md_tmplt_hdr_dma));
mcp->mb[7] = MSW(MSD(ha->md_tmplt_hdr_dma));
mcp->mb[8] = LSW(ha->md_template_size);
mcp->mb[9] = MSW(ha->md_template_size);
mcp->flags = MBX_DMA_OUT|MBX_DMA_IN|IOCTL_CMD;
mcp->tov = MBX_TOV_SECONDS;
mcp->out_mb = MBX_11|MBX_10|MBX_9|MBX_8|
MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1125,
"mailbox command FAILED=0x%x, subcode=%x.\n",
((mcp->mb[1] << 16) | mcp->mb[0]),
((mcp->mb[3] << 16) | mcp->mb[2]));
} else
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1126,
"Done %s.\n", __func__);
return rval;
}
int
qla8044_md_get_template(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
int rval = QLA_FUNCTION_FAILED;
int offset = 0, size = MINIDUMP_SIZE_36K;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0xb11f,
"Entered %s.\n", __func__);
ha->md_tmplt_hdr = dma_alloc_coherent(&ha->pdev->dev,
ha->md_template_size, &ha->md_tmplt_hdr_dma, GFP_KERNEL);
if (!ha->md_tmplt_hdr) {
ql_log(ql_log_warn, vha, 0xb11b,
"Unable to allocate memory for Minidump template.\n");
return rval;
}
memset(mcp->mb, 0 , sizeof(mcp->mb));
while (offset < ha->md_template_size) {
mcp->mb[0] = LSW(MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE);
mcp->mb[1] = MSW(MBC_DIAGNOSTIC_MINIDUMP_TEMPLATE);
mcp->mb[2] = LSW(RQST_TMPLT);
mcp->mb[3] = MSW(RQST_TMPLT);
mcp->mb[4] = LSW(LSD(ha->md_tmplt_hdr_dma + offset));
mcp->mb[5] = MSW(LSD(ha->md_tmplt_hdr_dma + offset));
mcp->mb[6] = LSW(MSD(ha->md_tmplt_hdr_dma + offset));
mcp->mb[7] = MSW(MSD(ha->md_tmplt_hdr_dma + offset));
mcp->mb[8] = LSW(size);
mcp->mb[9] = MSW(size);
mcp->mb[10] = offset & 0x0000FFFF;
mcp->mb[11] = offset & 0xFFFF0000;
mcp->flags = MBX_DMA_OUT|MBX_DMA_IN|IOCTL_CMD;
mcp->tov = MBX_TOV_SECONDS;
mcp->out_mb = MBX_11|MBX_10|MBX_9|MBX_8|
MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0xb11c,
"mailbox command FAILED=0x%x, subcode=%x.\n",
((mcp->mb[1] << 16) | mcp->mb[0]),
((mcp->mb[3] << 16) | mcp->mb[2]));
return rval;
} else
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0xb11d,
"Done %s.\n", __func__);
offset = offset + size;
}
return rval;
}
int
qla81xx_set_led_config(scsi_qla_host_t *vha, uint16_t *led_cfg)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1133,
"Entered %s.\n", __func__);
memset(mcp, 0, sizeof(mbx_cmd_t));
mcp->mb[0] = MBC_SET_LED_CONFIG;
mcp->mb[1] = led_cfg[0];
mcp->mb[2] = led_cfg[1];
if (IS_QLA8031(ha)) {
mcp->mb[3] = led_cfg[2];
mcp->mb[4] = led_cfg[3];
mcp->mb[5] = led_cfg[4];
mcp->mb[6] = led_cfg[5];
}
mcp->out_mb = MBX_2|MBX_1|MBX_0;
if (IS_QLA8031(ha))
mcp->out_mb |= MBX_6|MBX_5|MBX_4|MBX_3;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1134,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1135,
"Done %s.\n", __func__);
}
return rval;
}
int
qla81xx_get_led_config(scsi_qla_host_t *vha, uint16_t *led_cfg)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1136,
"Entered %s.\n", __func__);
memset(mcp, 0, sizeof(mbx_cmd_t));
mcp->mb[0] = MBC_GET_LED_CONFIG;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_2|MBX_1|MBX_0;
if (IS_QLA8031(ha))
mcp->in_mb |= MBX_6|MBX_5|MBX_4|MBX_3;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1137,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
led_cfg[0] = mcp->mb[1];
led_cfg[1] = mcp->mb[2];
if (IS_QLA8031(ha)) {
led_cfg[2] = mcp->mb[3];
led_cfg[3] = mcp->mb[4];
led_cfg[4] = mcp->mb[5];
led_cfg[5] = mcp->mb[6];
}
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1138,
"Done %s.\n", __func__);
}
return rval;
}
int
qla82xx_mbx_beacon_ctl(scsi_qla_host_t *vha, int enable)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_P3P_TYPE(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1127,
"Entered %s.\n", __func__);
memset(mcp, 0, sizeof(mbx_cmd_t));
mcp->mb[0] = MBC_SET_LED_CONFIG;
if (enable)
mcp->mb[7] = 0xE;
else
mcp->mb[7] = 0xD;
mcp->out_mb = MBX_7|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1128,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1129,
"Done %s.\n", __func__);
}
return rval;
}
int
qla83xx_wr_reg(scsi_qla_host_t *vha, uint32_t reg, uint32_t data)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1130,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_WRITE_REMOTE_REG;
mcp->mb[1] = LSW(reg);
mcp->mb[2] = MSW(reg);
mcp->mb[3] = LSW(data);
mcp->mb[4] = MSW(data);
mcp->out_mb = MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1131,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1132,
"Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_port_logout(scsi_qla_host_t *vha, struct fc_port *fcport)
{
int rval;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x113b,
"Implicit LOGO Unsupported.\n");
return QLA_FUNCTION_FAILED;
}
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x113c,
"Entering %s.\n", __func__);
/* Perform Implicit LOGO. */
mcp->mb[0] = MBC_PORT_LOGOUT;
mcp->mb[1] = fcport->loop_id;
mcp->mb[10] = BIT_15;
mcp->out_mb = MBX_10|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS)
ql_dbg(ql_dbg_mbx, vha, 0x113d,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
else
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x113e,
"Done %s.\n", __func__);
return rval;
}
int
qla83xx_rd_reg(scsi_qla_host_t *vha, uint32_t reg, uint32_t *data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
unsigned long retry_max_time = jiffies + (2 * HZ);
if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x114b, "Entered %s.\n", __func__);
retry_rd_reg:
mcp->mb[0] = MBC_READ_REMOTE_REG;
mcp->mb[1] = LSW(reg);
mcp->mb[2] = MSW(reg);
mcp->out_mb = MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_4|MBX_3|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x114c,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
} else {
*data = (mcp->mb[3] | (mcp->mb[4] << 16));
if (*data == QLA8XXX_BAD_VALUE) {
/*
* During soft-reset CAMRAM register reads might
* return 0xbad0bad0. So retry for MAX of 2 sec
* while reading camram registers.
*/
if (time_after(jiffies, retry_max_time)) {
ql_dbg(ql_dbg_mbx, vha, 0x1141,
"Failure to read CAMRAM register. "
"data=0x%x.\n", *data);
return QLA_FUNCTION_FAILED;
}
msleep(100);
goto retry_rd_reg;
}
ql_dbg(ql_dbg_mbx, vha, 0x1142, "Done %s.\n", __func__);
}
return rval;
}
int
qla83xx_restart_nic_firmware(scsi_qla_host_t *vha)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA83XX(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x1143, "Entered %s.\n", __func__);
mcp->mb[0] = MBC_RESTART_NIC_FIRMWARE;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1144,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
qla2xxx_dump_fw(vha);
} else {
ql_dbg(ql_dbg_mbx, vha, 0x1145, "Done %s.\n", __func__);
}
return rval;
}
int
qla83xx_access_control(scsi_qla_host_t *vha, uint16_t options,
uint32_t start_addr, uint32_t end_addr, uint16_t *sector_size)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
uint8_t subcode = (uint8_t)options;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA8031(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x1146, "Entered %s.\n", __func__);
mcp->mb[0] = MBC_SET_ACCESS_CONTROL;
mcp->mb[1] = options;
mcp->out_mb = MBX_1|MBX_0;
if (subcode & BIT_2) {
mcp->mb[2] = LSW(start_addr);
mcp->mb[3] = MSW(start_addr);
mcp->mb[4] = LSW(end_addr);
mcp->mb[5] = MSW(end_addr);
mcp->out_mb |= MBX_5|MBX_4|MBX_3|MBX_2;
}
mcp->in_mb = MBX_2|MBX_1|MBX_0;
if (!(subcode & (BIT_2 | BIT_5)))
mcp->in_mb |= MBX_4|MBX_3;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1147,
"Failed=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[3]=%x mb[4]=%x.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3],
mcp->mb[4]);
qla2xxx_dump_fw(vha);
} else {
if (subcode & BIT_5)
*sector_size = mcp->mb[1];
else if (subcode & (BIT_6 | BIT_7)) {
ql_dbg(ql_dbg_mbx, vha, 0x1148,
"Driver-lock id=%x%x", mcp->mb[4], mcp->mb[3]);
} else if (subcode & (BIT_3 | BIT_4)) {
ql_dbg(ql_dbg_mbx, vha, 0x1149,
"Flash-lock id=%x%x", mcp->mb[4], mcp->mb[3]);
}
ql_dbg(ql_dbg_mbx, vha, 0x114a, "Done %s.\n", __func__);
}
return rval;
}
int
qla2x00_dump_mctp_data(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t addr,
uint32_t size)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_MCTP_CAPABLE(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x114f,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_DUMP_RISC_RAM_EXTENDED;
mcp->mb[1] = LSW(addr);
mcp->mb[2] = MSW(req_dma);
mcp->mb[3] = LSW(req_dma);
mcp->mb[4] = MSW(size);
mcp->mb[5] = LSW(size);
mcp->mb[6] = MSW(MSD(req_dma));
mcp->mb[7] = LSW(MSD(req_dma));
mcp->mb[8] = MSW(addr);
/* Setting RAM ID to valid */
/* For MCTP RAM ID is 0x40 */
mcp->mb[10] = BIT_7 | 0x40;
mcp->out_mb |= MBX_10|MBX_8|MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|
MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x114e,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x114d,
"Done %s.\n", __func__);
}
return rval;
}
int
qla26xx_dport_diagnostics(scsi_qla_host_t *vha,
void *dd_buf, uint size, uint options)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
dma_addr_t dd_dma;
if (!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw) &&
!IS_QLA28XX(vha->hw))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x119f,
"Entered %s.\n", __func__);
dd_dma = dma_map_single(&vha->hw->pdev->dev,
dd_buf, size, DMA_FROM_DEVICE);
if (dma_mapping_error(&vha->hw->pdev->dev, dd_dma)) {
ql_log(ql_log_warn, vha, 0x1194, "Failed to map dma buffer.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
memset(dd_buf, 0, size);
mcp->mb[0] = MBC_DPORT_DIAGNOSTICS;
mcp->mb[1] = options;
mcp->mb[2] = MSW(LSD(dd_dma));
mcp->mb[3] = LSW(LSD(dd_dma));
mcp->mb[6] = MSW(MSD(dd_dma));
mcp->mb[7] = LSW(MSD(dd_dma));
mcp->mb[8] = size;
mcp->out_mb = MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->buf_size = size;
mcp->flags = MBX_DMA_IN;
mcp->tov = MBX_TOV_SECONDS * 4;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1195, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1196,
"Done %s.\n", __func__);
}
dma_unmap_single(&vha->hw->pdev->dev, dd_dma,
size, DMA_FROM_DEVICE);
return rval;
}
int
qla26xx_dport_diagnostics_v2(scsi_qla_host_t *vha,
struct qla_dport_diag_v2 *dd, mbx_cmd_t *mcp)
{
int rval;
dma_addr_t dd_dma;
uint size = sizeof(dd->buf);
uint16_t options = dd->options;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x119f,
"Entered %s.\n", __func__);
dd_dma = dma_map_single(&vha->hw->pdev->dev,
dd->buf, size, DMA_FROM_DEVICE);
if (dma_mapping_error(&vha->hw->pdev->dev, dd_dma)) {
ql_log(ql_log_warn, vha, 0x1194,
"Failed to map dma buffer.\n");
return QLA_MEMORY_ALLOC_FAILED;
}
memset(dd->buf, 0, size);
mcp->mb[0] = MBC_DPORT_DIAGNOSTICS;
mcp->mb[1] = options;
mcp->mb[2] = MSW(LSD(dd_dma));
mcp->mb[3] = LSW(LSD(dd_dma));
mcp->mb[6] = MSW(MSD(dd_dma));
mcp->mb[7] = LSW(MSD(dd_dma));
mcp->mb[8] = size;
mcp->out_mb = MBX_8 | MBX_7 | MBX_6 | MBX_3 | MBX_2 | MBX_1 | MBX_0;
mcp->in_mb = MBX_3 | MBX_2 | MBX_1 | MBX_0;
mcp->buf_size = size;
mcp->flags = MBX_DMA_IN;
mcp->tov = MBX_TOV_SECONDS * 4;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1195, "Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1196,
"Done %s.\n", __func__);
}
dma_unmap_single(&vha->hw->pdev->dev, dd_dma, size, DMA_FROM_DEVICE);
return rval;
}
static void qla2x00_async_mb_sp_done(srb_t *sp, int res)
{
sp->u.iocb_cmd.u.mbx.rc = res;
complete(&sp->u.iocb_cmd.u.mbx.comp);
/* don't free sp here. Let the caller do the free */
}
/*
* This mailbox uses the iocb interface to send MB command.
* This allows non-critial (non chip setup) command to go
* out in parrallel.
*/
int qla24xx_send_mb_cmd(struct scsi_qla_host *vha, mbx_cmd_t *mcp)
{
int rval = QLA_FUNCTION_FAILED;
srb_t *sp;
struct srb_iocb *c;
if (!vha->hw->flags.fw_started)
goto done;
/* ref: INIT */
sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
if (!sp)
goto done;
c = &sp->u.iocb_cmd;
init_completion(&c->u.mbx.comp);
sp->type = SRB_MB_IOCB;
sp->name = mb_to_str(mcp->mb[0]);
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_mb_sp_done);
memcpy(sp->u.iocb_cmd.u.mbx.out_mb, mcp->mb, SIZEOF_IOCB_MB_REG);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1018,
"%s: %s Failed submission. %x.\n",
__func__, sp->name, rval);
goto done_free_sp;
}
ql_dbg(ql_dbg_mbx, vha, 0x113f, "MB:%s hndl %x submitted\n",
sp->name, sp->handle);
wait_for_completion(&c->u.mbx.comp);
memcpy(mcp->mb, sp->u.iocb_cmd.u.mbx.in_mb, SIZEOF_IOCB_MB_REG);
rval = c->u.mbx.rc;
switch (rval) {
case QLA_FUNCTION_TIMEOUT:
ql_dbg(ql_dbg_mbx, vha, 0x1140, "%s: %s Timeout. %x.\n",
__func__, sp->name, rval);
break;
case QLA_SUCCESS:
ql_dbg(ql_dbg_mbx, vha, 0x119d, "%s: %s done.\n",
__func__, sp->name);
break;
default:
ql_dbg(ql_dbg_mbx, vha, 0x119e, "%s: %s Failed. %x.\n",
__func__, sp->name, rval);
break;
}
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
/*
* qla24xx_gpdb_wait
* NOTE: Do not call this routine from DPC thread
*/
int qla24xx_gpdb_wait(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
{
int rval = QLA_FUNCTION_FAILED;
dma_addr_t pd_dma;
struct port_database_24xx *pd;
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
if (!vha->hw->flags.fw_started)
goto done;
pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
if (pd == NULL) {
ql_log(ql_log_warn, vha, 0xd047,
"Failed to allocate port database structure.\n");
goto done_free_sp;
}
memset(&mc, 0, sizeof(mc));
mc.mb[0] = MBC_GET_PORT_DATABASE;
mc.mb[1] = fcport->loop_id;
mc.mb[2] = MSW(pd_dma);
mc.mb[3] = LSW(pd_dma);
mc.mb[6] = MSW(MSD(pd_dma));
mc.mb[7] = LSW(MSD(pd_dma));
mc.mb[9] = vha->vp_idx;
mc.mb[10] = opt;
rval = qla24xx_send_mb_cmd(vha, &mc);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1193,
"%s: %8phC fail\n", __func__, fcport->port_name);
goto done_free_sp;
}
rval = __qla24xx_parse_gpdb(vha, fcport, pd);
ql_dbg(ql_dbg_mbx, vha, 0x1197, "%s: %8phC done\n",
__func__, fcport->port_name);
done_free_sp:
if (pd)
dma_pool_free(ha->s_dma_pool, pd, pd_dma);
done:
return rval;
}
int __qla24xx_parse_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport,
struct port_database_24xx *pd)
{
int rval = QLA_SUCCESS;
uint64_t zero = 0;
u8 current_login_state, last_login_state;
if (NVME_TARGET(vha->hw, fcport)) {
current_login_state = pd->current_login_state >> 4;
last_login_state = pd->last_login_state >> 4;
} else {
current_login_state = pd->current_login_state & 0xf;
last_login_state = pd->last_login_state & 0xf;
}
/* Check for logged in state. */
if (current_login_state != PDS_PRLI_COMPLETE) {
ql_dbg(ql_dbg_mbx, vha, 0x119a,
"Unable to verify login-state (%x/%x) for loop_id %x.\n",
current_login_state, last_login_state, fcport->loop_id);
rval = QLA_FUNCTION_FAILED;
goto gpd_error_out;
}
if (fcport->loop_id == FC_NO_LOOP_ID ||
(memcmp(fcport->port_name, (uint8_t *)&zero, 8) &&
memcmp(fcport->port_name, pd->port_name, 8))) {
/* We lost the device mid way. */
rval = QLA_NOT_LOGGED_IN;
goto gpd_error_out;
}
/* Names are little-endian. */
memcpy(fcport->node_name, pd->node_name, WWN_SIZE);
memcpy(fcport->port_name, pd->port_name, WWN_SIZE);
/* Get port_id of device. */
fcport->d_id.b.domain = pd->port_id[0];
fcport->d_id.b.area = pd->port_id[1];
fcport->d_id.b.al_pa = pd->port_id[2];
fcport->d_id.b.rsvd_1 = 0;
ql_dbg(ql_dbg_disc, vha, 0x2062,
"%8phC SVC Param w3 %02x%02x",
fcport->port_name,
pd->prli_svc_param_word_3[1],
pd->prli_svc_param_word_3[0]);
if (NVME_TARGET(vha->hw, fcport)) {
fcport->port_type = FCT_NVME;
if ((pd->prli_svc_param_word_3[0] & BIT_5) == 0)
fcport->port_type |= FCT_NVME_INITIATOR;
if ((pd->prli_svc_param_word_3[0] & BIT_4) == 0)
fcport->port_type |= FCT_NVME_TARGET;
if ((pd->prli_svc_param_word_3[0] & BIT_3) == 0)
fcport->port_type |= FCT_NVME_DISCOVERY;
} else {
/* If not target must be initiator or unknown type. */
if ((pd->prli_svc_param_word_3[0] & BIT_4) == 0)
fcport->port_type = FCT_INITIATOR;
else
fcport->port_type = FCT_TARGET;
}
/* Passback COS information. */
fcport->supported_classes = (pd->flags & PDF_CLASS_2) ?
FC_COS_CLASS2 : FC_COS_CLASS3;
if (pd->prli_svc_param_word_3[0] & BIT_7) {
fcport->flags |= FCF_CONF_COMP_SUPPORTED;
fcport->conf_compl_supported = 1;
}
gpd_error_out:
return rval;
}
/*
* qla24xx_gidlist__wait
* NOTE: don't call this routine from DPC thread.
*/
int qla24xx_gidlist_wait(struct scsi_qla_host *vha,
void *id_list, dma_addr_t id_list_dma, uint16_t *entries)
{
int rval = QLA_FUNCTION_FAILED;
mbx_cmd_t mc;
if (!vha->hw->flags.fw_started)
goto done;
memset(&mc, 0, sizeof(mc));
mc.mb[0] = MBC_GET_ID_LIST;
mc.mb[2] = MSW(id_list_dma);
mc.mb[3] = LSW(id_list_dma);
mc.mb[6] = MSW(MSD(id_list_dma));
mc.mb[7] = LSW(MSD(id_list_dma));
mc.mb[8] = 0;
mc.mb[9] = vha->vp_idx;
rval = qla24xx_send_mb_cmd(vha, &mc);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x119b,
"%s: fail\n", __func__);
} else {
*entries = mc.mb[1];
ql_dbg(ql_dbg_mbx, vha, 0x119c,
"%s: done\n", __func__);
}
done:
return rval;
}
int qla27xx_set_zio_threshold(scsi_qla_host_t *vha, uint16_t value)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1200,
"Entered %s\n", __func__);
memset(mcp->mb, 0 , sizeof(mcp->mb));
mcp->mb[0] = MBC_GET_SET_ZIO_THRESHOLD;
mcp->mb[1] = 1;
mcp->mb[2] = value;
mcp->out_mb = MBX_2 | MBX_1 | MBX_0;
mcp->in_mb = MBX_2 | MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
ql_dbg(ql_dbg_mbx, vha, 0x1201, "%s %x\n",
(rval != QLA_SUCCESS) ? "Failed" : "Done", rval);
return rval;
}
int qla27xx_get_zio_threshold(scsi_qla_host_t *vha, uint16_t *value)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1203,
"Entered %s\n", __func__);
memset(mcp->mb, 0, sizeof(mcp->mb));
mcp->mb[0] = MBC_GET_SET_ZIO_THRESHOLD;
mcp->mb[1] = 0;
mcp->out_mb = MBX_1 | MBX_0;
mcp->in_mb = MBX_2 | MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval == QLA_SUCCESS)
*value = mc.mb[2];
ql_dbg(ql_dbg_mbx, vha, 0x1205, "%s %x\n",
(rval != QLA_SUCCESS) ? "Failed" : "Done", rval);
return rval;
}
int
qla2x00_read_sfp_dev(struct scsi_qla_host *vha, char *buf, int count)
{
struct qla_hw_data *ha = vha->hw;
uint16_t iter, addr, offset;
dma_addr_t phys_addr;
int rval, c;
u8 *sfp_data;
memset(ha->sfp_data, 0, SFP_DEV_SIZE);
addr = 0xa0;
phys_addr = ha->sfp_data_dma;
sfp_data = ha->sfp_data;
offset = c = 0;
for (iter = 0; iter < SFP_DEV_SIZE / SFP_BLOCK_SIZE; iter++) {
if (iter == 4) {
/* Skip to next device address. */
addr = 0xa2;
offset = 0;
}
rval = qla2x00_read_sfp(vha, phys_addr, sfp_data,
addr, offset, SFP_BLOCK_SIZE, BIT_1);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x706d,
"Unable to read SFP data (%x/%x/%x).\n", rval,
addr, offset);
return rval;
}
if (buf && (c < count)) {
u16 sz;
if ((count - c) >= SFP_BLOCK_SIZE)
sz = SFP_BLOCK_SIZE;
else
sz = count - c;
memcpy(buf, sfp_data, sz);
buf += SFP_BLOCK_SIZE;
c += sz;
}
phys_addr += SFP_BLOCK_SIZE;
sfp_data += SFP_BLOCK_SIZE;
offset += SFP_BLOCK_SIZE;
}
return rval;
}
int qla24xx_res_count_wait(struct scsi_qla_host *vha,
uint16_t *out_mb, int out_mb_sz)
{
int rval = QLA_FUNCTION_FAILED;
mbx_cmd_t mc;
if (!vha->hw->flags.fw_started)
goto done;
memset(&mc, 0, sizeof(mc));
mc.mb[0] = MBC_GET_RESOURCE_COUNTS;
rval = qla24xx_send_mb_cmd(vha, &mc);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0xffff,
"%s: fail\n", __func__);
} else {
if (out_mb_sz <= SIZEOF_IOCB_MB_REG)
memcpy(out_mb, mc.mb, out_mb_sz);
else
memcpy(out_mb, mc.mb, SIZEOF_IOCB_MB_REG);
ql_dbg(ql_dbg_mbx, vha, 0xffff,
"%s: done\n", __func__);
}
done:
return rval;
}
int qla28xx_secure_flash_update(scsi_qla_host_t *vha, uint16_t opts,
uint16_t region, uint32_t len, dma_addr_t sfub_dma_addr,
uint32_t sfub_len)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
mcp->mb[0] = MBC_SECURE_FLASH_UPDATE;
mcp->mb[1] = opts;
mcp->mb[2] = region;
mcp->mb[3] = MSW(len);
mcp->mb[4] = LSW(len);
mcp->mb[5] = MSW(sfub_dma_addr);
mcp->mb[6] = LSW(sfub_dma_addr);
mcp->mb[7] = MSW(MSD(sfub_dma_addr));
mcp->mb[8] = LSW(MSD(sfub_dma_addr));
mcp->mb[9] = sfub_len;
mcp->out_mb =
MBX_9|MBX_8|MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0xffff, "%s(%ld): failed rval 0x%x, %x %x %x",
__func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1],
mcp->mb[2]);
}
return rval;
}
int qla2xxx_write_remote_register(scsi_qla_host_t *vha, uint32_t addr,
uint32_t data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e8,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_WRITE_REMOTE_REG;
mcp->mb[1] = LSW(addr);
mcp->mb[2] = MSW(addr);
mcp->mb[3] = LSW(data);
mcp->mb[4] = MSW(data);
mcp->out_mb = MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10e9,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ea,
"Done %s.\n", __func__);
}
return rval;
}
int qla2xxx_read_remote_register(scsi_qla_host_t *vha, uint32_t addr,
uint32_t *data)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10e8,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_READ_REMOTE_REG;
mcp->mb[1] = LSW(addr);
mcp->mb[2] = MSW(addr);
mcp->out_mb = MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
*data = (uint32_t)((((uint32_t)mcp->mb[4]) << 16) | mcp->mb[3]);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x10e9,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10ea,
"Done %s.\n", __func__);
}
return rval;
}
int
ql26xx_led_config(scsi_qla_host_t *vha, uint16_t options, uint16_t *led)
{
struct qla_hw_data *ha = vha->hw;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
int rval;
if (!IS_QLA2031(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_mbx, vha, 0x7070, "Entered %s (options=%x).\n",
__func__, options);
mcp->mb[0] = MBC_SET_GET_FC_LED_CONFIG;
mcp->mb[1] = options;
mcp->out_mb = MBX_1|MBX_0;
mcp->in_mb = MBX_1|MBX_0;
if (options & BIT_0) {
if (options & BIT_1) {
mcp->mb[2] = led[2];
mcp->out_mb |= MBX_2;
}
if (options & BIT_2) {
mcp->mb[3] = led[0];
mcp->out_mb |= MBX_3;
}
if (options & BIT_3) {
mcp->mb[4] = led[1];
mcp->out_mb |= MBX_4;
}
} else {
mcp->in_mb |= MBX_4|MBX_3|MBX_2;
}
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval) {
ql_dbg(ql_dbg_mbx, vha, 0x7071, "Failed %s %x (mb=%x,%x)\n",
__func__, rval, mcp->mb[0], mcp->mb[1]);
return rval;
}
if (options & BIT_0) {
ha->beacon_blink_led = 0;
ql_dbg(ql_dbg_mbx, vha, 0x7072, "Done %s\n", __func__);
} else {
led[2] = mcp->mb[2];
led[0] = mcp->mb[3];
led[1] = mcp->mb[4];
ql_dbg(ql_dbg_mbx, vha, 0x7073, "Done %s (led=%x,%x,%x)\n",
__func__, led[0], led[1], led[2]);
}
return rval;
}
/**
* qla_no_op_mb(): This MB is used to check if FW is still alive and
* able to generate an interrupt. Otherwise, a timeout will trigger
* FW dump + reset
* @vha: host adapter pointer
* Return: None
*/
void qla_no_op_mb(struct scsi_qla_host *vha)
{
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
int rval;
memset(&mc, 0, sizeof(mc));
mcp->mb[0] = 0; // noop cmd= 0
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_0;
mcp->tov = 5;
mcp->flags = 0;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval) {
ql_dbg(ql_dbg_async, vha, 0x7071,
"Failed %s %x\n", __func__, rval);
}
}
int qla_mailbox_passthru(scsi_qla_host_t *vha,
uint16_t *mbx_in, uint16_t *mbx_out)
{
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
int rval = -EINVAL;
memset(&mc, 0, sizeof(mc));
/* Receiving all 32 register's contents */
memcpy(&mcp->mb, (char *)mbx_in, (32 * sizeof(uint16_t)));
mcp->out_mb = 0xFFFFFFFF;
mcp->in_mb = 0xFFFFFFFF;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
mcp->bufp = NULL;
rval = qla2x00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0xf0a2,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0xf0a3, "Done %s.\n",
__func__);
/* passing all 32 register's contents */
memcpy(mbx_out, &mcp->mb, 32 * sizeof(uint16_t));
}
return rval;
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_mbx.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_gbl.h"
#include <linux/kthread.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/bsg-lib.h>
static void qla2xxx_free_fcport_work(struct work_struct *work)
{
struct fc_port *fcport = container_of(work, typeof(*fcport),
free_work);
qla2x00_free_fcport(fcport);
}
/* BSG support for ELS/CT pass through */
void qla2x00_bsg_job_done(srb_t *sp, int res)
{
struct bsg_job *bsg_job = sp->u.bsg_job;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
ql_dbg(ql_dbg_user, sp->vha, 0x7009,
"%s: sp hdl %x, result=%x bsg ptr %p\n",
__func__, sp->handle, res, bsg_job);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
bsg_reply->result = res;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
void qla2x00_bsg_sp_free(srb_t *sp)
{
struct qla_hw_data *ha = sp->vha->hw;
struct bsg_job *bsg_job = sp->u.bsg_job;
struct fc_bsg_request *bsg_request = bsg_job->request;
struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
if (sp->type == SRB_FXIOCB_BCMD) {
piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
&bsg_request->rqst_data.h_vendor.vendor_cmd[1];
if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
dma_unmap_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
dma_unmap_sg(&ha->pdev->dev,
bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
} else {
if (sp->remap.remapped) {
dma_pool_free(ha->purex_dma_pool, sp->remap.rsp.buf,
sp->remap.rsp.dma);
dma_pool_free(ha->purex_dma_pool, sp->remap.req.buf,
sp->remap.req.dma);
} else {
dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
}
}
if (sp->type == SRB_CT_CMD ||
sp->type == SRB_FXIOCB_BCMD ||
sp->type == SRB_ELS_CMD_HST) {
INIT_WORK(&sp->fcport->free_work, qla2xxx_free_fcport_work);
queue_work(ha->wq, &sp->fcport->free_work);
}
qla2x00_rel_sp(sp);
}
int
qla24xx_fcp_prio_cfg_valid(scsi_qla_host_t *vha,
struct qla_fcp_prio_cfg *pri_cfg, uint8_t flag)
{
int i, ret, num_valid;
uint8_t *bcode;
struct qla_fcp_prio_entry *pri_entry;
uint32_t *bcode_val_ptr, bcode_val;
ret = 1;
num_valid = 0;
bcode = (uint8_t *)pri_cfg;
bcode_val_ptr = (uint32_t *)pri_cfg;
bcode_val = (uint32_t)(*bcode_val_ptr);
if (bcode_val == 0xFFFFFFFF) {
/* No FCP Priority config data in flash */
ql_dbg(ql_dbg_user, vha, 0x7051,
"No FCP Priority config data.\n");
return 0;
}
if (memcmp(bcode, "HQOS", 4)) {
/* Invalid FCP priority data header*/
ql_dbg(ql_dbg_user, vha, 0x7052,
"Invalid FCP Priority data header. bcode=0x%x.\n",
bcode_val);
return 0;
}
if (flag != 1)
return ret;
pri_entry = &pri_cfg->entry[0];
for (i = 0; i < pri_cfg->num_entries; i++) {
if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
num_valid++;
pri_entry++;
}
if (num_valid == 0) {
/* No valid FCP priority data entries */
ql_dbg(ql_dbg_user, vha, 0x7053,
"No valid FCP Priority data entries.\n");
ret = 0;
} else {
/* FCP priority data is valid */
ql_dbg(ql_dbg_user, vha, 0x7054,
"Valid FCP priority data. num entries = %d.\n",
num_valid);
}
return ret;
}
static int
qla24xx_proc_fcp_prio_cfg_cmd(struct bsg_job *bsg_job)
{
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int ret = 0;
uint32_t len;
uint32_t oper;
if (!(IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) || IS_P3P_TYPE(ha))) {
ret = -EINVAL;
goto exit_fcp_prio_cfg;
}
/* Get the sub command */
oper = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
/* Only set config is allowed if config memory is not allocated */
if (!ha->fcp_prio_cfg && (oper != QLFC_FCP_PRIO_SET_CONFIG)) {
ret = -EINVAL;
goto exit_fcp_prio_cfg;
}
switch (oper) {
case QLFC_FCP_PRIO_DISABLE:
if (ha->flags.fcp_prio_enabled) {
ha->flags.fcp_prio_enabled = 0;
ha->fcp_prio_cfg->attributes &=
~FCP_PRIO_ATTR_ENABLE;
qla24xx_update_all_fcp_prio(vha);
bsg_reply->result = DID_OK;
} else {
ret = -EINVAL;
bsg_reply->result = (DID_ERROR << 16);
goto exit_fcp_prio_cfg;
}
break;
case QLFC_FCP_PRIO_ENABLE:
if (!ha->flags.fcp_prio_enabled) {
if (ha->fcp_prio_cfg) {
ha->flags.fcp_prio_enabled = 1;
ha->fcp_prio_cfg->attributes |=
FCP_PRIO_ATTR_ENABLE;
qla24xx_update_all_fcp_prio(vha);
bsg_reply->result = DID_OK;
} else {
ret = -EINVAL;
bsg_reply->result = (DID_ERROR << 16);
goto exit_fcp_prio_cfg;
}
}
break;
case QLFC_FCP_PRIO_GET_CONFIG:
len = bsg_job->reply_payload.payload_len;
if (!len || len > FCP_PRIO_CFG_SIZE) {
ret = -EINVAL;
bsg_reply->result = (DID_ERROR << 16);
goto exit_fcp_prio_cfg;
}
bsg_reply->result = DID_OK;
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(
bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, ha->fcp_prio_cfg,
len);
break;
case QLFC_FCP_PRIO_SET_CONFIG:
len = bsg_job->request_payload.payload_len;
if (!len || len > FCP_PRIO_CFG_SIZE) {
bsg_reply->result = (DID_ERROR << 16);
ret = -EINVAL;
goto exit_fcp_prio_cfg;
}
if (!ha->fcp_prio_cfg) {
ha->fcp_prio_cfg = vmalloc(FCP_PRIO_CFG_SIZE);
if (!ha->fcp_prio_cfg) {
ql_log(ql_log_warn, vha, 0x7050,
"Unable to allocate memory for fcp prio "
"config data (%x).\n", FCP_PRIO_CFG_SIZE);
bsg_reply->result = (DID_ERROR << 16);
ret = -ENOMEM;
goto exit_fcp_prio_cfg;
}
}
memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE);
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, ha->fcp_prio_cfg,
FCP_PRIO_CFG_SIZE);
/* validate fcp priority data */
if (!qla24xx_fcp_prio_cfg_valid(vha, ha->fcp_prio_cfg, 1)) {
bsg_reply->result = (DID_ERROR << 16);
ret = -EINVAL;
/* If buffer was invalidatic int
* fcp_prio_cfg is of no use
*/
vfree(ha->fcp_prio_cfg);
ha->fcp_prio_cfg = NULL;
goto exit_fcp_prio_cfg;
}
ha->flags.fcp_prio_enabled = 0;
if (ha->fcp_prio_cfg->attributes & FCP_PRIO_ATTR_ENABLE)
ha->flags.fcp_prio_enabled = 1;
qla24xx_update_all_fcp_prio(vha);
bsg_reply->result = DID_OK;
break;
default:
ret = -EINVAL;
break;
}
exit_fcp_prio_cfg:
if (!ret)
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return ret;
}
static int
qla2x00_process_els(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_rport *rport;
fc_port_t *fcport = NULL;
struct Scsi_Host *host;
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
srb_t *sp;
const char *type;
int req_sg_cnt, rsp_sg_cnt;
int rval = (DID_ERROR << 16);
uint32_t els_cmd = 0;
int qla_port_allocated = 0;
if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
rport = fc_bsg_to_rport(bsg_job);
if (!rport) {
rval = -ENOMEM;
goto done;
}
fcport = *(fc_port_t **) rport->dd_data;
host = rport_to_shost(rport);
vha = shost_priv(host);
ha = vha->hw;
type = "FC_BSG_RPT_ELS";
} else {
host = fc_bsg_to_shost(bsg_job);
vha = shost_priv(host);
ha = vha->hw;
type = "FC_BSG_HST_ELS_NOLOGIN";
els_cmd = bsg_request->rqst_data.h_els.command_code;
if (els_cmd == ELS_AUTH_ELS)
return qla_edif_process_els(vha, bsg_job);
}
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x7005, "Host not online.\n");
rval = -EIO;
goto done;
}
/* pass through is supported only for ISP 4Gb or higher */
if (!IS_FWI2_CAPABLE(ha)) {
ql_dbg(ql_dbg_user, vha, 0x7001,
"ELS passthru not supported for ISP23xx based adapters.\n");
rval = -EPERM;
goto done;
}
/* Multiple SG's are not supported for ELS requests */
if (bsg_job->request_payload.sg_cnt > 1 ||
bsg_job->reply_payload.sg_cnt > 1) {
ql_dbg(ql_dbg_user, vha, 0x7002,
"Multiple SG's are not supported for ELS requests, "
"request_sg_cnt=%x reply_sg_cnt=%x.\n",
bsg_job->request_payload.sg_cnt,
bsg_job->reply_payload.sg_cnt);
rval = -EPERM;
goto done;
}
/* ELS request for rport */
if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
/* make sure the rport is logged in,
* if not perform fabric login
*/
if (atomic_read(&fcport->state) != FCS_ONLINE) {
ql_dbg(ql_dbg_user, vha, 0x7003,
"Port %06X is not online for ELS passthru.\n",
fcport->d_id.b24);
rval = -EIO;
goto done;
}
} else {
/* Allocate a dummy fcport structure, since functions
* preparing the IOCB and mailbox command retrieves port
* specific information from fcport structure. For Host based
* ELS commands there will be no fcport structure allocated
*/
fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (!fcport) {
rval = -ENOMEM;
goto done;
}
qla_port_allocated = 1;
/* Initialize all required fields of fcport */
fcport->vha = vha;
fcport->d_id.b.al_pa =
bsg_request->rqst_data.h_els.port_id[0];
fcport->d_id.b.area =
bsg_request->rqst_data.h_els.port_id[1];
fcport->d_id.b.domain =
bsg_request->rqst_data.h_els.port_id[2];
fcport->loop_id =
(fcport->d_id.b.al_pa == 0xFD) ?
NPH_FABRIC_CONTROLLER : NPH_F_PORT;
}
req_sg_cnt =
dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (!req_sg_cnt) {
dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
rval = -ENOMEM;
goto done_free_fcport;
}
rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
if (!rsp_sg_cnt) {
dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
rval = -ENOMEM;
goto done_free_fcport;
}
if ((req_sg_cnt != bsg_job->request_payload.sg_cnt) ||
(rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
ql_log(ql_log_warn, vha, 0x7008,
"dma mapping resulted in different sg counts, "
"request_sg_cnt: %x dma_request_sg_cnt:%x reply_sg_cnt:%x "
"dma_reply_sg_cnt:%x.\n", bsg_job->request_payload.sg_cnt,
req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
rval = -EAGAIN;
goto done_unmap_sg;
}
/* Alloc SRB structure */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp) {
rval = -ENOMEM;
goto done_unmap_sg;
}
sp->type =
(bsg_request->msgcode == FC_BSG_RPT_ELS ?
SRB_ELS_CMD_RPT : SRB_ELS_CMD_HST);
sp->name =
(bsg_request->msgcode == FC_BSG_RPT_ELS ?
"bsg_els_rpt" : "bsg_els_hst");
sp->u.bsg_job = bsg_job;
sp->free = qla2x00_bsg_sp_free;
sp->done = qla2x00_bsg_job_done;
ql_dbg(ql_dbg_user, vha, 0x700a,
"bsg rqst type: %s els type: %x - loop-id=%x "
"portid=%-2x%02x%02x.\n", type,
bsg_request->rqst_data.h_els.command_code, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x700e,
"qla2x00_start_sp failed = %d\n", rval);
qla2x00_rel_sp(sp);
rval = -EIO;
goto done_unmap_sg;
}
return rval;
done_unmap_sg:
dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
goto done_free_fcport;
done_free_fcport:
if (qla_port_allocated)
qla2x00_free_fcport(fcport);
done:
return rval;
}
static inline uint16_t
qla24xx_calc_ct_iocbs(uint16_t dsds)
{
uint16_t iocbs;
iocbs = 1;
if (dsds > 2) {
iocbs += (dsds - 2) / 5;
if ((dsds - 2) % 5)
iocbs++;
}
return iocbs;
}
static int
qla2x00_process_ct(struct bsg_job *bsg_job)
{
srb_t *sp;
struct fc_bsg_request *bsg_request = bsg_job->request;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = (DID_ERROR << 16);
int req_sg_cnt, rsp_sg_cnt;
uint16_t loop_id;
struct fc_port *fcport;
char *type = "FC_BSG_HST_CT";
req_sg_cnt =
dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (!req_sg_cnt) {
ql_log(ql_log_warn, vha, 0x700f,
"dma_map_sg return %d for request\n", req_sg_cnt);
rval = -ENOMEM;
goto done;
}
rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
if (!rsp_sg_cnt) {
ql_log(ql_log_warn, vha, 0x7010,
"dma_map_sg return %d for reply\n", rsp_sg_cnt);
rval = -ENOMEM;
goto done;
}
if ((req_sg_cnt != bsg_job->request_payload.sg_cnt) ||
(rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
ql_log(ql_log_warn, vha, 0x7011,
"request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
"dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
rval = -EAGAIN;
goto done_unmap_sg;
}
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x7012,
"Host is not online.\n");
rval = -EIO;
goto done_unmap_sg;
}
loop_id =
(bsg_request->rqst_data.h_ct.preamble_word1 & 0xFF000000)
>> 24;
switch (loop_id) {
case 0xFC:
loop_id = NPH_SNS;
break;
case 0xFA:
loop_id = vha->mgmt_svr_loop_id;
break;
default:
ql_dbg(ql_dbg_user, vha, 0x7013,
"Unknown loop id: %x.\n", loop_id);
rval = -EINVAL;
goto done_unmap_sg;
}
/* Allocate a dummy fcport structure, since functions preparing the
* IOCB and mailbox command retrieves port specific information
* from fcport structure. For Host based ELS commands there will be
* no fcport structure allocated
*/
fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (!fcport) {
ql_log(ql_log_warn, vha, 0x7014,
"Failed to allocate fcport.\n");
rval = -ENOMEM;
goto done_unmap_sg;
}
/* Initialize all required fields of fcport */
fcport->vha = vha;
fcport->d_id.b.al_pa = bsg_request->rqst_data.h_ct.port_id[0];
fcport->d_id.b.area = bsg_request->rqst_data.h_ct.port_id[1];
fcport->d_id.b.domain = bsg_request->rqst_data.h_ct.port_id[2];
fcport->loop_id = loop_id;
/* Alloc SRB structure */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp) {
ql_log(ql_log_warn, vha, 0x7015,
"qla2x00_get_sp failed.\n");
rval = -ENOMEM;
goto done_free_fcport;
}
sp->type = SRB_CT_CMD;
sp->name = "bsg_ct";
sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
sp->u.bsg_job = bsg_job;
sp->free = qla2x00_bsg_sp_free;
sp->done = qla2x00_bsg_job_done;
ql_dbg(ql_dbg_user, vha, 0x7016,
"bsg rqst type: %s else type: %x - "
"loop-id=%x portid=%02x%02x%02x.\n", type,
(bsg_request->rqst_data.h_ct.preamble_word2 >> 16),
fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7017,
"qla2x00_start_sp failed=%d.\n", rval);
qla2x00_rel_sp(sp);
rval = -EIO;
goto done_free_fcport;
}
return rval;
done_free_fcport:
qla2x00_free_fcport(fcport);
done_unmap_sg:
dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
done:
return rval;
}
/* Disable loopback mode */
static inline int
qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
int wait, int wait2)
{
int ret = 0;
int rval = 0;
uint16_t new_config[4];
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
goto done_reset_internal;
memset(new_config, 0 , sizeof(new_config));
if ((config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
ENABLE_INTERNAL_LOOPBACK ||
(config[0] & INTERNAL_LOOPBACK_MASK) >> 1 ==
ENABLE_EXTERNAL_LOOPBACK) {
new_config[0] = config[0] & ~INTERNAL_LOOPBACK_MASK;
ql_dbg(ql_dbg_user, vha, 0x70bf, "new_config[0]=%02x\n",
(new_config[0] & INTERNAL_LOOPBACK_MASK));
memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
ha->notify_dcbx_comp = wait;
ha->notify_lb_portup_comp = wait2;
ret = qla81xx_set_port_config(vha, new_config);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7025,
"Set port config failed.\n");
ha->notify_dcbx_comp = 0;
ha->notify_lb_portup_comp = 0;
rval = -EINVAL;
goto done_reset_internal;
}
/* Wait for DCBX complete event */
if (wait && !wait_for_completion_timeout(&ha->dcbx_comp,
(DCBX_COMP_TIMEOUT * HZ))) {
ql_dbg(ql_dbg_user, vha, 0x7026,
"DCBX completion not received.\n");
ha->notify_dcbx_comp = 0;
ha->notify_lb_portup_comp = 0;
rval = -EINVAL;
goto done_reset_internal;
} else
ql_dbg(ql_dbg_user, vha, 0x7027,
"DCBX completion received.\n");
if (wait2 &&
!wait_for_completion_timeout(&ha->lb_portup_comp,
(LB_PORTUP_COMP_TIMEOUT * HZ))) {
ql_dbg(ql_dbg_user, vha, 0x70c5,
"Port up completion not received.\n");
ha->notify_lb_portup_comp = 0;
rval = -EINVAL;
goto done_reset_internal;
} else
ql_dbg(ql_dbg_user, vha, 0x70c6,
"Port up completion received.\n");
ha->notify_dcbx_comp = 0;
ha->notify_lb_portup_comp = 0;
}
done_reset_internal:
return rval;
}
/*
* Set the port configuration to enable the internal or external loopback
* depending on the loopback mode.
*/
static inline int
qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
uint16_t *new_config, uint16_t mode)
{
int ret = 0;
int rval = 0;
unsigned long rem_tmo = 0, current_tmo = 0;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha))
goto done_set_internal;
if (mode == INTERNAL_LOOPBACK)
new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1);
else if (mode == EXTERNAL_LOOPBACK)
new_config[0] = config[0] | (ENABLE_EXTERNAL_LOOPBACK << 1);
ql_dbg(ql_dbg_user, vha, 0x70be,
"new_config[0]=%02x\n", (new_config[0] & INTERNAL_LOOPBACK_MASK));
memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3);
ha->notify_dcbx_comp = 1;
ret = qla81xx_set_port_config(vha, new_config);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7021,
"set port config failed.\n");
ha->notify_dcbx_comp = 0;
rval = -EINVAL;
goto done_set_internal;
}
/* Wait for DCBX complete event */
current_tmo = DCBX_COMP_TIMEOUT * HZ;
while (1) {
rem_tmo = wait_for_completion_timeout(&ha->dcbx_comp,
current_tmo);
if (!ha->idc_extend_tmo || rem_tmo) {
ha->idc_extend_tmo = 0;
break;
}
current_tmo = ha->idc_extend_tmo * HZ;
ha->idc_extend_tmo = 0;
}
if (!rem_tmo) {
ql_dbg(ql_dbg_user, vha, 0x7022,
"DCBX completion not received.\n");
ret = qla81xx_reset_loopback_mode(vha, new_config, 0, 0);
/*
* If the reset of the loopback mode doesn't work take a FCoE
* dump and reset the chip.
*/
if (ret) {
qla2xxx_dump_fw(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
}
rval = -EINVAL;
} else {
if (ha->flags.idc_compl_status) {
ql_dbg(ql_dbg_user, vha, 0x70c3,
"Bad status in IDC Completion AEN\n");
rval = -EINVAL;
ha->flags.idc_compl_status = 0;
} else
ql_dbg(ql_dbg_user, vha, 0x7023,
"DCBX completion received.\n");
}
ha->notify_dcbx_comp = 0;
ha->idc_extend_tmo = 0;
done_set_internal:
return rval;
}
static int
qla2x00_process_loopback(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval;
uint8_t command_sent;
char *type;
struct msg_echo_lb elreq;
uint16_t response[MAILBOX_REGISTER_COUNT];
uint16_t config[4], new_config[4];
uint8_t *fw_sts_ptr;
void *req_data = NULL;
dma_addr_t req_data_dma;
uint32_t req_data_len;
uint8_t *rsp_data = NULL;
dma_addr_t rsp_data_dma;
uint32_t rsp_data_len;
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x7019, "Host is not online.\n");
return -EIO;
}
memset(&elreq, 0, sizeof(elreq));
elreq.req_sg_cnt = dma_map_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt,
DMA_TO_DEVICE);
if (!elreq.req_sg_cnt) {
ql_log(ql_log_warn, vha, 0x701a,
"dma_map_sg returned %d for request.\n", elreq.req_sg_cnt);
return -ENOMEM;
}
elreq.rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
DMA_FROM_DEVICE);
if (!elreq.rsp_sg_cnt) {
ql_log(ql_log_warn, vha, 0x701b,
"dma_map_sg returned %d for reply.\n", elreq.rsp_sg_cnt);
rval = -ENOMEM;
goto done_unmap_req_sg;
}
if ((elreq.req_sg_cnt != bsg_job->request_payload.sg_cnt) ||
(elreq.rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
ql_log(ql_log_warn, vha, 0x701c,
"dma mapping resulted in different sg counts, "
"request_sg_cnt: %x dma_request_sg_cnt: %x "
"reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
bsg_job->request_payload.sg_cnt, elreq.req_sg_cnt,
bsg_job->reply_payload.sg_cnt, elreq.rsp_sg_cnt);
rval = -EAGAIN;
goto done_unmap_sg;
}
req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
req_data = dma_alloc_coherent(&ha->pdev->dev, req_data_len,
&req_data_dma, GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x701d,
"dma alloc failed for req_data.\n");
rval = -ENOMEM;
goto done_unmap_sg;
}
rsp_data = dma_alloc_coherent(&ha->pdev->dev, rsp_data_len,
&rsp_data_dma, GFP_KERNEL);
if (!rsp_data) {
ql_log(ql_log_warn, vha, 0x7004,
"dma alloc failed for rsp_data.\n");
rval = -ENOMEM;
goto done_free_dma_req;
}
/* Copy the request buffer in req_data now */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, req_data, req_data_len);
elreq.send_dma = req_data_dma;
elreq.rcv_dma = rsp_data_dma;
elreq.transfer_size = req_data_len;
elreq.options = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
elreq.iteration_count =
bsg_request->rqst_data.h_vendor.vendor_cmd[2];
if (atomic_read(&vha->loop_state) == LOOP_READY &&
((ha->current_topology == ISP_CFG_F && (elreq.options & 7) >= 2) ||
((IS_QLA81XX(ha) || IS_QLA8031(ha) || IS_QLA8044(ha)) &&
get_unaligned_le32(req_data) == ELS_OPCODE_BYTE &&
req_data_len == MAX_ELS_FRAME_PAYLOAD &&
elreq.options == EXTERNAL_LOOPBACK))) {
type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
ql_dbg(ql_dbg_user, vha, 0x701e,
"BSG request type: %s.\n", type);
command_sent = INT_DEF_LB_ECHO_CMD;
rval = qla2x00_echo_test(vha, &elreq, response);
} else {
if (IS_QLA81XX(ha) || IS_QLA8031(ha) || IS_QLA8044(ha)) {
memset(config, 0, sizeof(config));
memset(new_config, 0, sizeof(new_config));
if (qla81xx_get_port_config(vha, config)) {
ql_log(ql_log_warn, vha, 0x701f,
"Get port config failed.\n");
rval = -EPERM;
goto done_free_dma_rsp;
}
if ((config[0] & INTERNAL_LOOPBACK_MASK) != 0) {
ql_dbg(ql_dbg_user, vha, 0x70c4,
"Loopback operation already in "
"progress.\n");
rval = -EAGAIN;
goto done_free_dma_rsp;
}
ql_dbg(ql_dbg_user, vha, 0x70c0,
"elreq.options=%04x\n", elreq.options);
if (elreq.options == EXTERNAL_LOOPBACK)
if (IS_QLA8031(ha) || IS_QLA8044(ha))
rval = qla81xx_set_loopback_mode(vha,
config, new_config, elreq.options);
else
rval = qla81xx_reset_loopback_mode(vha,
config, 1, 0);
else
rval = qla81xx_set_loopback_mode(vha, config,
new_config, elreq.options);
if (rval) {
rval = -EPERM;
goto done_free_dma_rsp;
}
type = "FC_BSG_HST_VENDOR_LOOPBACK";
ql_dbg(ql_dbg_user, vha, 0x7028,
"BSG request type: %s.\n", type);
command_sent = INT_DEF_LB_LOOPBACK_CMD;
rval = qla2x00_loopback_test(vha, &elreq, response);
if (response[0] == MBS_COMMAND_ERROR &&
response[1] == MBS_LB_RESET) {
ql_log(ql_log_warn, vha, 0x7029,
"MBX command error, Aborting ISP.\n");
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_chip_reset(vha);
/* Also reset the MPI */
if (IS_QLA81XX(ha)) {
if (qla81xx_restart_mpi_firmware(vha) !=
QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x702a,
"MPI reset failed.\n");
}
}
rval = -EIO;
goto done_free_dma_rsp;
}
if (new_config[0]) {
int ret;
/* Revert back to original port config
* Also clear internal loopback
*/
ret = qla81xx_reset_loopback_mode(vha,
new_config, 0, 1);
if (ret) {
/*
* If the reset of the loopback mode
* doesn't work take FCoE dump and then
* reset the chip.
*/
qla2xxx_dump_fw(vha);
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
}
}
} else {
type = "FC_BSG_HST_VENDOR_LOOPBACK";
ql_dbg(ql_dbg_user, vha, 0x702b,
"BSG request type: %s.\n", type);
command_sent = INT_DEF_LB_LOOPBACK_CMD;
rval = qla2x00_loopback_test(vha, &elreq, response);
}
}
if (rval) {
ql_log(ql_log_warn, vha, 0x702c,
"Vendor request %s failed.\n", type);
rval = 0;
bsg_reply->result = (DID_ERROR << 16);
bsg_reply->reply_payload_rcv_len = 0;
} else {
ql_dbg(ql_dbg_user, vha, 0x702d,
"Vendor request %s completed.\n", type);
bsg_reply->result = (DID_OK << 16);
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, rsp_data,
rsp_data_len);
}
bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
sizeof(response) + sizeof(uint8_t);
fw_sts_ptr = bsg_job->reply + sizeof(struct fc_bsg_reply);
memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply), response,
sizeof(response));
fw_sts_ptr += sizeof(response);
*fw_sts_ptr = command_sent;
done_free_dma_rsp:
dma_free_coherent(&ha->pdev->dev, rsp_data_len,
rsp_data, rsp_data_dma);
done_free_dma_req:
dma_free_coherent(&ha->pdev->dev, req_data_len,
req_data, req_data_dma);
done_unmap_sg:
dma_unmap_sg(&ha->pdev->dev,
bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
done_unmap_req_sg:
dma_unmap_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (!rval)
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rval;
}
static int
qla84xx_reset(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = 0;
uint32_t flag;
if (!IS_QLA84XX(ha)) {
ql_dbg(ql_dbg_user, vha, 0x702f, "Not 84xx, exiting.\n");
return -EINVAL;
}
flag = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
rval = qla84xx_reset_chip(vha, flag == A84_ISSUE_RESET_DIAG_FW);
if (rval) {
ql_log(ql_log_warn, vha, 0x7030,
"Vendor request 84xx reset failed.\n");
rval = (DID_ERROR << 16);
} else {
ql_dbg(ql_dbg_user, vha, 0x7031,
"Vendor request 84xx reset completed.\n");
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return rval;
}
static int
qla84xx_updatefw(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
struct verify_chip_entry_84xx *mn = NULL;
dma_addr_t mn_dma, fw_dma;
void *fw_buf = NULL;
int rval = 0;
uint32_t sg_cnt;
uint32_t data_len;
uint16_t options;
uint32_t flag;
uint32_t fw_ver;
if (!IS_QLA84XX(ha)) {
ql_dbg(ql_dbg_user, vha, 0x7032,
"Not 84xx, exiting.\n");
return -EINVAL;
}
sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (!sg_cnt) {
ql_log(ql_log_warn, vha, 0x7033,
"dma_map_sg returned %d for request.\n", sg_cnt);
return -ENOMEM;
}
if (sg_cnt != bsg_job->request_payload.sg_cnt) {
ql_log(ql_log_warn, vha, 0x7034,
"DMA mapping resulted in different sg counts, "
"request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
bsg_job->request_payload.sg_cnt, sg_cnt);
rval = -EAGAIN;
goto done_unmap_sg;
}
data_len = bsg_job->request_payload.payload_len;
fw_buf = dma_alloc_coherent(&ha->pdev->dev, data_len,
&fw_dma, GFP_KERNEL);
if (!fw_buf) {
ql_log(ql_log_warn, vha, 0x7035,
"DMA alloc failed for fw_buf.\n");
rval = -ENOMEM;
goto done_unmap_sg;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, fw_buf, data_len);
mn = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
if (!mn) {
ql_log(ql_log_warn, vha, 0x7036,
"DMA alloc failed for fw buffer.\n");
rval = -ENOMEM;
goto done_free_fw_buf;
}
flag = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
fw_ver = get_unaligned_le32((uint32_t *)fw_buf + 2);
mn->entry_type = VERIFY_CHIP_IOCB_TYPE;
mn->entry_count = 1;
options = VCO_FORCE_UPDATE | VCO_END_OF_DATA;
if (flag == A84_ISSUE_UPDATE_DIAGFW_CMD)
options |= VCO_DIAG_FW;
mn->options = cpu_to_le16(options);
mn->fw_ver = cpu_to_le32(fw_ver);
mn->fw_size = cpu_to_le32(data_len);
mn->fw_seq_size = cpu_to_le32(data_len);
put_unaligned_le64(fw_dma, &mn->dsd.address);
mn->dsd.length = cpu_to_le32(data_len);
mn->data_seg_cnt = cpu_to_le16(1);
rval = qla2x00_issue_iocb_timeout(vha, mn, mn_dma, 0, 120);
if (rval) {
ql_log(ql_log_warn, vha, 0x7037,
"Vendor request 84xx updatefw failed.\n");
rval = (DID_ERROR << 16);
} else {
ql_dbg(ql_dbg_user, vha, 0x7038,
"Vendor request 84xx updatefw completed.\n");
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK;
}
dma_pool_free(ha->s_dma_pool, mn, mn_dma);
done_free_fw_buf:
dma_free_coherent(&ha->pdev->dev, data_len, fw_buf, fw_dma);
done_unmap_sg:
dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (!rval)
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rval;
}
static int
qla84xx_mgmt_cmd(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
struct access_chip_84xx *mn = NULL;
dma_addr_t mn_dma, mgmt_dma;
void *mgmt_b = NULL;
int rval = 0;
struct qla_bsg_a84_mgmt *ql84_mgmt;
uint32_t sg_cnt;
uint32_t data_len = 0;
uint32_t dma_direction = DMA_NONE;
if (!IS_QLA84XX(ha)) {
ql_log(ql_log_warn, vha, 0x703a,
"Not 84xx, exiting.\n");
return -EINVAL;
}
mn = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma);
if (!mn) {
ql_log(ql_log_warn, vha, 0x703c,
"DMA alloc failed for fw buffer.\n");
return -ENOMEM;
}
mn->entry_type = ACCESS_CHIP_IOCB_TYPE;
mn->entry_count = 1;
ql84_mgmt = (void *)bsg_request + sizeof(struct fc_bsg_request);
switch (ql84_mgmt->mgmt.cmd) {
case QLA84_MGMT_READ_MEM:
case QLA84_MGMT_GET_INFO:
sg_cnt = dma_map_sg(&ha->pdev->dev,
bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
if (!sg_cnt) {
ql_log(ql_log_warn, vha, 0x703d,
"dma_map_sg returned %d for reply.\n", sg_cnt);
rval = -ENOMEM;
goto exit_mgmt;
}
dma_direction = DMA_FROM_DEVICE;
if (sg_cnt != bsg_job->reply_payload.sg_cnt) {
ql_log(ql_log_warn, vha, 0x703e,
"DMA mapping resulted in different sg counts, "
"reply_sg_cnt: %x dma_reply_sg_cnt: %x.\n",
bsg_job->reply_payload.sg_cnt, sg_cnt);
rval = -EAGAIN;
goto done_unmap_sg;
}
data_len = bsg_job->reply_payload.payload_len;
mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
&mgmt_dma, GFP_KERNEL);
if (!mgmt_b) {
ql_log(ql_log_warn, vha, 0x703f,
"DMA alloc failed for mgmt_b.\n");
rval = -ENOMEM;
goto done_unmap_sg;
}
if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) {
mn->options = cpu_to_le16(ACO_DUMP_MEMORY);
mn->parameter1 =
cpu_to_le32(
ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
} else if (ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO) {
mn->options = cpu_to_le16(ACO_REQUEST_INFO);
mn->parameter1 =
cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.info.type);
mn->parameter2 =
cpu_to_le32(
ql84_mgmt->mgmt.mgmtp.u.info.context);
}
break;
case QLA84_MGMT_WRITE_MEM:
sg_cnt = dma_map_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (!sg_cnt) {
ql_log(ql_log_warn, vha, 0x7040,
"dma_map_sg returned %d.\n", sg_cnt);
rval = -ENOMEM;
goto exit_mgmt;
}
dma_direction = DMA_TO_DEVICE;
if (sg_cnt != bsg_job->request_payload.sg_cnt) {
ql_log(ql_log_warn, vha, 0x7041,
"DMA mapping resulted in different sg counts, "
"request_sg_cnt: %x dma_request_sg_cnt: %x.\n",
bsg_job->request_payload.sg_cnt, sg_cnt);
rval = -EAGAIN;
goto done_unmap_sg;
}
data_len = bsg_job->request_payload.payload_len;
mgmt_b = dma_alloc_coherent(&ha->pdev->dev, data_len,
&mgmt_dma, GFP_KERNEL);
if (!mgmt_b) {
ql_log(ql_log_warn, vha, 0x7042,
"DMA alloc failed for mgmt_b.\n");
rval = -ENOMEM;
goto done_unmap_sg;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, mgmt_b, data_len);
mn->options = cpu_to_le16(ACO_LOAD_MEMORY);
mn->parameter1 =
cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.mem.start_addr);
break;
case QLA84_MGMT_CHNG_CONFIG:
mn->options = cpu_to_le16(ACO_CHANGE_CONFIG_PARAM);
mn->parameter1 =
cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.id);
mn->parameter2 =
cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param0);
mn->parameter3 =
cpu_to_le32(ql84_mgmt->mgmt.mgmtp.u.config.param1);
break;
default:
rval = -EIO;
goto exit_mgmt;
}
if (ql84_mgmt->mgmt.cmd != QLA84_MGMT_CHNG_CONFIG) {
mn->total_byte_cnt = cpu_to_le32(ql84_mgmt->mgmt.len);
mn->dseg_count = cpu_to_le16(1);
put_unaligned_le64(mgmt_dma, &mn->dsd.address);
mn->dsd.length = cpu_to_le32(ql84_mgmt->mgmt.len);
}
rval = qla2x00_issue_iocb(vha, mn, mn_dma, 0);
if (rval) {
ql_log(ql_log_warn, vha, 0x7043,
"Vendor request 84xx mgmt failed.\n");
rval = (DID_ERROR << 16);
} else {
ql_dbg(ql_dbg_user, vha, 0x7044,
"Vendor request 84xx mgmt completed.\n");
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK;
if ((ql84_mgmt->mgmt.cmd == QLA84_MGMT_READ_MEM) ||
(ql84_mgmt->mgmt.cmd == QLA84_MGMT_GET_INFO)) {
bsg_reply->reply_payload_rcv_len =
bsg_job->reply_payload.payload_len;
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, mgmt_b,
data_len);
}
}
done_unmap_sg:
if (mgmt_b)
dma_free_coherent(&ha->pdev->dev, data_len, mgmt_b, mgmt_dma);
if (dma_direction == DMA_TO_DEVICE)
dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
else if (dma_direction == DMA_FROM_DEVICE)
dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
exit_mgmt:
dma_pool_free(ha->s_dma_pool, mn, mn_dma);
if (!rval)
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rval;
}
static int
qla24xx_iidma(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
int rval = 0;
struct qla_port_param *port_param = NULL;
fc_port_t *fcport = NULL;
int found = 0;
uint16_t mb[MAILBOX_REGISTER_COUNT];
uint8_t *rsp_ptr = NULL;
if (!IS_IIDMA_CAPABLE(vha->hw)) {
ql_log(ql_log_info, vha, 0x7046, "iiDMA not supported.\n");
return -EINVAL;
}
port_param = (void *)bsg_request + sizeof(struct fc_bsg_request);
if (port_param->fc_scsi_addr.dest_type != EXT_DEF_TYPE_WWPN) {
ql_log(ql_log_warn, vha, 0x7048,
"Invalid destination type.\n");
return -EINVAL;
}
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->port_type != FCT_TARGET)
continue;
if (memcmp(port_param->fc_scsi_addr.dest_addr.wwpn,
fcport->port_name, sizeof(fcport->port_name)))
continue;
found = 1;
break;
}
if (!found) {
ql_log(ql_log_warn, vha, 0x7049,
"Failed to find port.\n");
return -EINVAL;
}
if (atomic_read(&fcport->state) != FCS_ONLINE) {
ql_log(ql_log_warn, vha, 0x704a,
"Port is not online.\n");
return -EINVAL;
}
if (fcport->flags & FCF_LOGIN_NEEDED) {
ql_log(ql_log_warn, vha, 0x704b,
"Remote port not logged in flags = 0x%x.\n", fcport->flags);
return -EINVAL;
}
if (port_param->mode)
rval = qla2x00_set_idma_speed(vha, fcport->loop_id,
port_param->speed, mb);
else
rval = qla2x00_get_idma_speed(vha, fcport->loop_id,
&port_param->speed, mb);
if (rval) {
ql_log(ql_log_warn, vha, 0x704c,
"iiDMA cmd failed for %8phN -- "
"%04x %x %04x %04x.\n", fcport->port_name,
rval, fcport->fp_speed, mb[0], mb[1]);
rval = (DID_ERROR << 16);
} else {
if (!port_param->mode) {
bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
sizeof(struct qla_port_param);
rsp_ptr = ((uint8_t *)bsg_reply) +
sizeof(struct fc_bsg_reply);
memcpy(rsp_ptr, port_param,
sizeof(struct qla_port_param));
}
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return rval;
}
static int
qla2x00_optrom_setup(struct bsg_job *bsg_job, scsi_qla_host_t *vha,
uint8_t is_update)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
uint32_t start = 0;
int valid = 0;
struct qla_hw_data *ha = vha->hw;
if (unlikely(pci_channel_offline(ha->pdev)))
return -EINVAL;
start = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
if (start > ha->optrom_size) {
ql_log(ql_log_warn, vha, 0x7055,
"start %d > optrom_size %d.\n", start, ha->optrom_size);
return -EINVAL;
}
if (ha->optrom_state != QLA_SWAITING) {
ql_log(ql_log_info, vha, 0x7056,
"optrom_state %d.\n", ha->optrom_state);
return -EBUSY;
}
ha->optrom_region_start = start;
ql_dbg(ql_dbg_user, vha, 0x7057, "is_update=%d.\n", is_update);
if (is_update) {
if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
valid = 1;
else if (start == (ha->flt_region_boot * 4) ||
start == (ha->flt_region_fw * 4))
valid = 1;
else if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) ||
IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha))
valid = 1;
if (!valid) {
ql_log(ql_log_warn, vha, 0x7058,
"Invalid start region 0x%x/0x%x.\n", start,
bsg_job->request_payload.payload_len);
return -EINVAL;
}
ha->optrom_region_size = start +
bsg_job->request_payload.payload_len > ha->optrom_size ?
ha->optrom_size - start :
bsg_job->request_payload.payload_len;
ha->optrom_state = QLA_SWRITING;
} else {
ha->optrom_region_size = start +
bsg_job->reply_payload.payload_len > ha->optrom_size ?
ha->optrom_size - start :
bsg_job->reply_payload.payload_len;
ha->optrom_state = QLA_SREADING;
}
ha->optrom_buffer = vzalloc(ha->optrom_region_size);
if (!ha->optrom_buffer) {
ql_log(ql_log_warn, vha, 0x7059,
"Read: Unable to allocate memory for optrom retrieval "
"(%x)\n", ha->optrom_region_size);
ha->optrom_state = QLA_SWAITING;
return -ENOMEM;
}
return 0;
}
static int
qla2x00_read_optrom(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = 0;
if (ha->flags.nic_core_reset_hdlr_active)
return -EBUSY;
mutex_lock(&ha->optrom_mutex);
rval = qla2x00_optrom_setup(bsg_job, vha, 0);
if (rval) {
mutex_unlock(&ha->optrom_mutex);
return rval;
}
ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
ha->optrom_region_start, ha->optrom_region_size);
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, ha->optrom_buffer,
ha->optrom_region_size);
bsg_reply->reply_payload_rcv_len = ha->optrom_region_size;
bsg_reply->result = DID_OK;
vfree(ha->optrom_buffer);
ha->optrom_buffer = NULL;
ha->optrom_state = QLA_SWAITING;
mutex_unlock(&ha->optrom_mutex);
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rval;
}
static int
qla2x00_update_optrom(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = 0;
mutex_lock(&ha->optrom_mutex);
rval = qla2x00_optrom_setup(bsg_job, vha, 1);
if (rval) {
mutex_unlock(&ha->optrom_mutex);
return rval;
}
/* Set the isp82xx_no_md_cap not to capture minidump */
ha->flags.isp82xx_no_md_cap = 1;
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, ha->optrom_buffer,
ha->optrom_region_size);
rval = ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
ha->optrom_region_start, ha->optrom_region_size);
if (rval) {
bsg_reply->result = -EINVAL;
rval = -EINVAL;
} else {
bsg_reply->result = DID_OK;
}
vfree(ha->optrom_buffer);
ha->optrom_buffer = NULL;
ha->optrom_state = QLA_SWAITING;
mutex_unlock(&ha->optrom_mutex);
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rval;
}
static int
qla2x00_update_fru_versions(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = 0;
uint8_t bsg[DMA_POOL_SIZE];
struct qla_image_version_list *list = (void *)bsg;
struct qla_image_version *image;
uint32_t count;
dma_addr_t sfp_dma;
void *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
if (!sfp) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_NO_MEMORY;
goto done;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, list, sizeof(bsg));
image = list->version;
count = list->count;
while (count--) {
memcpy(sfp, &image->field_info, sizeof(image->field_info));
rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
image->field_address.device, image->field_address.offset,
sizeof(image->field_info), image->field_address.option);
if (rval) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_MAILBOX;
goto dealloc;
}
image++;
}
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
dealloc:
dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
done:
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla2x00_read_fru_status(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = 0;
uint8_t bsg[DMA_POOL_SIZE];
struct qla_status_reg *sr = (void *)bsg;
dma_addr_t sfp_dma;
uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
if (!sfp) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_NO_MEMORY;
goto done;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
sr->field_address.device, sr->field_address.offset,
sizeof(sr->status_reg), sr->field_address.option);
sr->status_reg = *sfp;
if (rval) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_MAILBOX;
goto dealloc;
}
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, sr, sizeof(*sr));
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
dealloc:
dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
done:
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->reply_payload_rcv_len = sizeof(*sr);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla2x00_write_fru_status(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = 0;
uint8_t bsg[DMA_POOL_SIZE];
struct qla_status_reg *sr = (void *)bsg;
dma_addr_t sfp_dma;
uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
if (!sfp) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_NO_MEMORY;
goto done;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, sr, sizeof(*sr));
*sfp = sr->status_reg;
rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
sr->field_address.device, sr->field_address.offset,
sizeof(sr->status_reg), sr->field_address.option);
if (rval) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_MAILBOX;
goto dealloc;
}
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
dealloc:
dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
done:
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla2x00_write_i2c(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = 0;
uint8_t bsg[DMA_POOL_SIZE];
struct qla_i2c_access *i2c = (void *)bsg;
dma_addr_t sfp_dma;
uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
if (!sfp) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_NO_MEMORY;
goto done;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
memcpy(sfp, i2c->buffer, i2c->length);
rval = qla2x00_write_sfp(vha, sfp_dma, sfp,
i2c->device, i2c->offset, i2c->length, i2c->option);
if (rval) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_MAILBOX;
goto dealloc;
}
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
dealloc:
dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
done:
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla2x00_read_i2c(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = 0;
uint8_t bsg[DMA_POOL_SIZE];
struct qla_i2c_access *i2c = (void *)bsg;
dma_addr_t sfp_dma;
uint8_t *sfp = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &sfp_dma);
if (!sfp) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_NO_MEMORY;
goto done;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, i2c, sizeof(*i2c));
rval = qla2x00_read_sfp(vha, sfp_dma, sfp,
i2c->device, i2c->offset, i2c->length, i2c->option);
if (rval) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_MAILBOX;
goto dealloc;
}
memcpy(i2c->buffer, sfp, i2c->length);
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, i2c, sizeof(*i2c));
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = 0;
dealloc:
dma_pool_free(ha->s_dma_pool, sfp, sfp_dma);
done:
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->reply_payload_rcv_len = sizeof(*i2c);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla24xx_process_bidir_cmd(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
uint32_t rval = EXT_STATUS_OK;
uint16_t req_sg_cnt = 0;
uint16_t rsp_sg_cnt = 0;
uint16_t nextlid = 0;
uint32_t tot_dsds;
srb_t *sp = NULL;
uint32_t req_data_len;
uint32_t rsp_data_len;
/* Check the type of the adapter */
if (!IS_BIDI_CAPABLE(ha)) {
ql_log(ql_log_warn, vha, 0x70a0,
"This adapter is not supported\n");
rval = EXT_STATUS_NOT_SUPPORTED;
goto done;
}
if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
rval = EXT_STATUS_BUSY;
goto done;
}
/* Check if host is online */
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x70a1,
"Host is not online\n");
rval = EXT_STATUS_DEVICE_OFFLINE;
goto done;
}
/* Check if cable is plugged in or not */
if (vha->device_flags & DFLG_NO_CABLE) {
ql_log(ql_log_warn, vha, 0x70a2,
"Cable is unplugged...\n");
rval = EXT_STATUS_INVALID_CFG;
goto done;
}
/* Check if the switch is connected or not */
if (ha->current_topology != ISP_CFG_F) {
ql_log(ql_log_warn, vha, 0x70a3,
"Host is not connected to the switch\n");
rval = EXT_STATUS_INVALID_CFG;
goto done;
}
/* Check if operating mode is P2P */
if (ha->operating_mode != P2P) {
ql_log(ql_log_warn, vha, 0x70a4,
"Host operating mode is not P2p\n");
rval = EXT_STATUS_INVALID_CFG;
goto done;
}
mutex_lock(&ha->selflogin_lock);
if (vha->self_login_loop_id == 0) {
/* Initialize all required fields of fcport */
vha->bidir_fcport.vha = vha;
vha->bidir_fcport.d_id.b.al_pa = vha->d_id.b.al_pa;
vha->bidir_fcport.d_id.b.area = vha->d_id.b.area;
vha->bidir_fcport.d_id.b.domain = vha->d_id.b.domain;
vha->bidir_fcport.loop_id = vha->loop_id;
if (qla2x00_fabric_login(vha, &(vha->bidir_fcport), &nextlid)) {
ql_log(ql_log_warn, vha, 0x70a7,
"Failed to login port %06X for bidirectional IOCB\n",
vha->bidir_fcport.d_id.b24);
mutex_unlock(&ha->selflogin_lock);
rval = EXT_STATUS_MAILBOX;
goto done;
}
vha->self_login_loop_id = nextlid - 1;
}
/* Assign the self login loop id to fcport */
mutex_unlock(&ha->selflogin_lock);
vha->bidir_fcport.loop_id = vha->self_login_loop_id;
req_sg_cnt = dma_map_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt,
DMA_TO_DEVICE);
if (!req_sg_cnt) {
rval = EXT_STATUS_NO_MEMORY;
goto done;
}
rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt,
DMA_FROM_DEVICE);
if (!rsp_sg_cnt) {
rval = EXT_STATUS_NO_MEMORY;
goto done_unmap_req_sg;
}
if ((req_sg_cnt != bsg_job->request_payload.sg_cnt) ||
(rsp_sg_cnt != bsg_job->reply_payload.sg_cnt)) {
ql_dbg(ql_dbg_user, vha, 0x70a9,
"Dma mapping resulted in different sg counts "
"[request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt: "
"%x dma_reply_sg_cnt: %x]\n",
bsg_job->request_payload.sg_cnt, req_sg_cnt,
bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
rval = EXT_STATUS_NO_MEMORY;
goto done_unmap_sg;
}
req_data_len = bsg_job->request_payload.payload_len;
rsp_data_len = bsg_job->reply_payload.payload_len;
if (req_data_len != rsp_data_len) {
rval = EXT_STATUS_BUSY;
ql_log(ql_log_warn, vha, 0x70aa,
"req_data_len != rsp_data_len\n");
goto done_unmap_sg;
}
/* Alloc SRB structure */
sp = qla2x00_get_sp(vha, &(vha->bidir_fcport), GFP_KERNEL);
if (!sp) {
ql_dbg(ql_dbg_user, vha, 0x70ac,
"Alloc SRB structure failed\n");
rval = EXT_STATUS_NO_MEMORY;
goto done_unmap_sg;
}
/*Populate srb->ctx with bidir ctx*/
sp->u.bsg_job = bsg_job;
sp->free = qla2x00_bsg_sp_free;
sp->type = SRB_BIDI_CMD;
sp->done = qla2x00_bsg_job_done;
/* Add the read and write sg count */
tot_dsds = rsp_sg_cnt + req_sg_cnt;
rval = qla2x00_start_bidir(sp, vha, tot_dsds);
if (rval != EXT_STATUS_OK)
goto done_free_srb;
/* the bsg request will be completed in the interrupt handler */
return rval;
done_free_srb:
mempool_free(sp, ha->srb_mempool);
done_unmap_sg:
dma_unmap_sg(&ha->pdev->dev,
bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
done_unmap_req_sg:
dma_unmap_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
done:
/* Return an error vendor specific response
* and complete the bsg request
*/
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->reply_payload_rcv_len = 0;
bsg_reply->result = (DID_OK) << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
/* Always return success, vendor rsp carries correct status */
return 0;
}
static int
qlafx00_mgmt_cmd(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
int rval = (DID_ERROR << 16);
struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
srb_t *sp;
int req_sg_cnt = 0, rsp_sg_cnt = 0;
struct fc_port *fcport;
char *type = "FC_BSG_HST_FX_MGMT";
/* Copy the IOCB specific information */
piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
&bsg_request->rqst_data.h_vendor.vendor_cmd[1];
/* Dump the vendor information */
ql_dump_buffer(ql_dbg_user + ql_dbg_verbose , vha, 0x70cf,
piocb_rqst, sizeof(*piocb_rqst));
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x70d0,
"Host is not online.\n");
rval = -EIO;
goto done;
}
if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
req_sg_cnt = dma_map_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (!req_sg_cnt) {
ql_log(ql_log_warn, vha, 0x70c7,
"dma_map_sg return %d for request\n", req_sg_cnt);
rval = -ENOMEM;
goto done;
}
}
if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
rsp_sg_cnt = dma_map_sg(&ha->pdev->dev,
bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
if (!rsp_sg_cnt) {
ql_log(ql_log_warn, vha, 0x70c8,
"dma_map_sg return %d for reply\n", rsp_sg_cnt);
rval = -ENOMEM;
goto done_unmap_req_sg;
}
}
ql_dbg(ql_dbg_user, vha, 0x70c9,
"request_sg_cnt: %x dma_request_sg_cnt: %x reply_sg_cnt:%x "
"dma_reply_sg_cnt: %x\n", bsg_job->request_payload.sg_cnt,
req_sg_cnt, bsg_job->reply_payload.sg_cnt, rsp_sg_cnt);
/* Allocate a dummy fcport structure, since functions preparing the
* IOCB and mailbox command retrieves port specific information
* from fcport structure. For Host based ELS commands there will be
* no fcport structure allocated
*/
fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (!fcport) {
ql_log(ql_log_warn, vha, 0x70ca,
"Failed to allocate fcport.\n");
rval = -ENOMEM;
goto done_unmap_rsp_sg;
}
/* Alloc SRB structure */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp) {
ql_log(ql_log_warn, vha, 0x70cb,
"qla2x00_get_sp failed.\n");
rval = -ENOMEM;
goto done_free_fcport;
}
/* Initialize all required fields of fcport */
fcport->vha = vha;
fcport->loop_id = le32_to_cpu(piocb_rqst->dataword);
sp->type = SRB_FXIOCB_BCMD;
sp->name = "bsg_fx_mgmt";
sp->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
sp->u.bsg_job = bsg_job;
sp->free = qla2x00_bsg_sp_free;
sp->done = qla2x00_bsg_job_done;
ql_dbg(ql_dbg_user, vha, 0x70cc,
"bsg rqst type: %s fx_mgmt_type: %x id=%x\n",
type, piocb_rqst->func_type, fcport->loop_id);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x70cd,
"qla2x00_start_sp failed=%d.\n", rval);
mempool_free(sp, ha->srb_mempool);
rval = -EIO;
goto done_free_fcport;
}
return rval;
done_free_fcport:
qla2x00_free_fcport(fcport);
done_unmap_rsp_sg:
if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID)
dma_unmap_sg(&ha->pdev->dev,
bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
done_unmap_req_sg:
if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID)
dma_unmap_sg(&ha->pdev->dev,
bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
done:
return rval;
}
static int
qla26xx_serdes_op(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
int rval = 0;
struct qla_serdes_reg sr;
memset(&sr, 0, sizeof(sr));
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &sr, sizeof(sr));
switch (sr.cmd) {
case INT_SC_SERDES_WRITE_REG:
rval = qla2x00_write_serdes_word(vha, sr.addr, sr.val);
bsg_reply->reply_payload_rcv_len = 0;
break;
case INT_SC_SERDES_READ_REG:
rval = qla2x00_read_serdes_word(vha, sr.addr, &sr.val);
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr));
bsg_reply->reply_payload_rcv_len = sizeof(sr);
break;
default:
ql_dbg(ql_dbg_user, vha, 0x708c,
"Unknown serdes cmd %x.\n", sr.cmd);
rval = -EINVAL;
break;
}
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
rval ? EXT_STATUS_MAILBOX : 0;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla8044_serdes_op(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
int rval = 0;
struct qla_serdes_reg_ex sr;
memset(&sr, 0, sizeof(sr));
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &sr, sizeof(sr));
switch (sr.cmd) {
case INT_SC_SERDES_WRITE_REG:
rval = qla8044_write_serdes_word(vha, sr.addr, sr.val);
bsg_reply->reply_payload_rcv_len = 0;
break;
case INT_SC_SERDES_READ_REG:
rval = qla8044_read_serdes_word(vha, sr.addr, &sr.val);
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr));
bsg_reply->reply_payload_rcv_len = sizeof(sr);
break;
default:
ql_dbg(ql_dbg_user, vha, 0x7020,
"Unknown serdes cmd %x.\n", sr.cmd);
rval = -EINVAL;
break;
}
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
rval ? EXT_STATUS_MAILBOX : 0;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla27xx_get_flash_upd_cap(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
struct qla_flash_update_caps cap;
if (!(IS_QLA27XX(ha)) && !IS_QLA28XX(ha))
return -EPERM;
memset(&cap, 0, sizeof(cap));
cap.capabilities = (uint64_t)ha->fw_attributes_ext[1] << 48 |
(uint64_t)ha->fw_attributes_ext[0] << 32 |
(uint64_t)ha->fw_attributes_h << 16 |
(uint64_t)ha->fw_attributes;
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &cap, sizeof(cap));
bsg_reply->reply_payload_rcv_len = sizeof(cap);
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_OK;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla27xx_set_flash_upd_cap(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
uint64_t online_fw_attr = 0;
struct qla_flash_update_caps cap;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return -EPERM;
memset(&cap, 0, sizeof(cap));
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &cap, sizeof(cap));
online_fw_attr = (uint64_t)ha->fw_attributes_ext[1] << 48 |
(uint64_t)ha->fw_attributes_ext[0] << 32 |
(uint64_t)ha->fw_attributes_h << 16 |
(uint64_t)ha->fw_attributes;
if (online_fw_attr != cap.capabilities) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_INVALID_PARAM;
return -EINVAL;
}
if (cap.outage_duration < MAX_LOOP_TIMEOUT) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_INVALID_PARAM;
return -EINVAL;
}
bsg_reply->reply_payload_rcv_len = 0;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_OK;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla27xx_get_bbcr_data(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
struct qla_bbcr_data bbcr;
uint16_t loop_id, topo, sw_cap;
uint8_t domain, area, al_pa, state;
int rval;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return -EPERM;
memset(&bbcr, 0, sizeof(bbcr));
if (vha->flags.bbcr_enable)
bbcr.status = QLA_BBCR_STATUS_ENABLED;
else
bbcr.status = QLA_BBCR_STATUS_DISABLED;
if (bbcr.status == QLA_BBCR_STATUS_ENABLED) {
rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
&area, &domain, &topo, &sw_cap);
if (rval != QLA_SUCCESS) {
bbcr.status = QLA_BBCR_STATUS_UNKNOWN;
bbcr.state = QLA_BBCR_STATE_OFFLINE;
bbcr.mbx1 = loop_id;
goto done;
}
state = (vha->bbcr >> 12) & 0x1;
if (state) {
bbcr.state = QLA_BBCR_STATE_OFFLINE;
bbcr.offline_reason_code = QLA_BBCR_REASON_LOGIN_REJECT;
} else {
bbcr.state = QLA_BBCR_STATE_ONLINE;
bbcr.negotiated_bbscn = (vha->bbcr >> 8) & 0xf;
}
bbcr.configured_bbscn = vha->bbcr & 0xf;
}
done:
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &bbcr, sizeof(bbcr));
bsg_reply->reply_payload_rcv_len = sizeof(bbcr);
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla2x00_get_priv_stats(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
struct link_statistics *stats = NULL;
dma_addr_t stats_dma;
int rval;
uint32_t *cmd = bsg_request->rqst_data.h_vendor.vendor_cmd;
uint options = cmd[0] == QL_VND_GET_PRIV_STATS_EX ? cmd[1] : 0;
if (test_bit(UNLOADING, &vha->dpc_flags))
return -ENODEV;
if (unlikely(pci_channel_offline(ha->pdev)))
return -ENODEV;
if (qla2x00_reset_active(vha))
return -EBUSY;
if (!IS_FWI2_CAPABLE(ha))
return -EPERM;
stats = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stats), &stats_dma,
GFP_KERNEL);
if (!stats) {
ql_log(ql_log_warn, vha, 0x70e2,
"Failed to allocate memory for stats.\n");
return -ENOMEM;
}
rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, options);
if (rval == QLA_SUCCESS) {
ql_dump_buffer(ql_dbg_user + ql_dbg_verbose, vha, 0x70e5,
stats, sizeof(*stats));
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, stats, sizeof(*stats));
}
bsg_reply->reply_payload_rcv_len = sizeof(*stats);
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
bsg_job->reply_len = sizeof(*bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
dma_free_coherent(&ha->pdev->dev, sizeof(*stats),
stats, stats_dma);
return 0;
}
static int
qla2x00_do_dport_diagnostics(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
int rval;
struct qla_dport_diag *dd;
if (!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw) &&
!IS_QLA28XX(vha->hw))
return -EPERM;
dd = kmalloc(sizeof(*dd), GFP_KERNEL);
if (!dd) {
ql_log(ql_log_warn, vha, 0x70db,
"Failed to allocate memory for dport.\n");
return -ENOMEM;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, dd, sizeof(*dd));
rval = qla26xx_dport_diagnostics(
vha, dd->buf, sizeof(dd->buf), dd->options);
if (rval == QLA_SUCCESS) {
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, dd, sizeof(*dd));
}
bsg_reply->reply_payload_rcv_len = sizeof(*dd);
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
bsg_job->reply_len = sizeof(*bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
kfree(dd);
return 0;
}
static int
qla2x00_do_dport_diagnostics_v2(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
int rval;
struct qla_dport_diag_v2 *dd;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
uint16_t options;
if (!IS_DPORT_CAPABLE(vha->hw))
return -EPERM;
dd = kzalloc(sizeof(*dd), GFP_KERNEL);
if (!dd)
return -ENOMEM;
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, dd, sizeof(*dd));
options = dd->options;
/* Check dport Test in progress */
if (options == QLA_GET_DPORT_RESULT_V2 &&
vha->dport_status & DPORT_DIAG_IN_PROGRESS) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_DPORT_DIAG_IN_PROCESS;
goto dportcomplete;
}
/* Check chip reset in progress and start/restart requests arrive */
if (vha->dport_status & DPORT_DIAG_CHIP_RESET_IN_PROGRESS &&
(options == QLA_START_DPORT_TEST_V2 ||
options == QLA_RESTART_DPORT_TEST_V2)) {
vha->dport_status &= ~DPORT_DIAG_CHIP_RESET_IN_PROGRESS;
}
/* Check chip reset in progress and get result request arrive */
if (vha->dport_status & DPORT_DIAG_CHIP_RESET_IN_PROGRESS &&
options == QLA_GET_DPORT_RESULT_V2) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_DPORT_DIAG_NOT_RUNNING;
goto dportcomplete;
}
rval = qla26xx_dport_diagnostics_v2(vha, dd, mcp);
if (rval == QLA_SUCCESS) {
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_OK;
if (options == QLA_START_DPORT_TEST_V2 ||
options == QLA_RESTART_DPORT_TEST_V2) {
dd->mbx1 = mcp->mb[0];
dd->mbx2 = mcp->mb[1];
vha->dport_status |= DPORT_DIAG_IN_PROGRESS;
} else if (options == QLA_GET_DPORT_RESULT_V2) {
dd->mbx1 = le16_to_cpu(vha->dport_data[1]);
dd->mbx2 = le16_to_cpu(vha->dport_data[2]);
}
} else {
dd->mbx1 = mcp->mb[0];
dd->mbx2 = mcp->mb[1];
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] =
EXT_STATUS_DPORT_DIAG_ERR;
}
dportcomplete:
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, dd, sizeof(*dd));
bsg_reply->reply_payload_rcv_len = sizeof(*dd);
bsg_job->reply_len = sizeof(*bsg_reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
kfree(dd);
return 0;
}
static int
qla2x00_get_flash_image_status(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct qla_hw_data *ha = vha->hw;
struct qla_active_regions regions = { };
struct active_regions active_regions = { };
qla27xx_get_active_image(vha, &active_regions);
regions.global_image = active_regions.global;
if (IS_QLA27XX(ha))
regions.nvme_params = QLA27XX_PRIMARY_IMAGE;
if (IS_QLA28XX(ha)) {
qla28xx_get_aux_images(vha, &active_regions);
regions.board_config = active_regions.aux.board_config;
regions.vpd_nvram = active_regions.aux.vpd_nvram;
regions.npiv_config_0_1 = active_regions.aux.npiv_config_0_1;
regions.npiv_config_2_3 = active_regions.aux.npiv_config_2_3;
regions.nvme_params = active_regions.aux.nvme_params;
}
ql_dbg(ql_dbg_user, vha, 0x70e1,
"%s(%lu): FW=%u BCFG=%u VPDNVR=%u NPIV01=%u NPIV02=%u NVME_PARAMS=%u\n",
__func__, vha->host_no, regions.global_image,
regions.board_config, regions.vpd_nvram,
regions.npiv_config_0_1, regions.npiv_config_2_3, regions.nvme_params);
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, ®ions, sizeof(regions));
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
bsg_reply->reply_payload_rcv_len = sizeof(regions);
bsg_reply->result = DID_OK << 16;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static int
qla2x00_manage_host_stats(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct ql_vnd_mng_host_stats_param *req_data;
struct ql_vnd_mng_host_stats_resp rsp_data;
u32 req_data_len;
int ret = 0;
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x0000, "Host is not online.\n");
return -EIO;
}
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != sizeof(struct ql_vnd_mng_host_stats_param)) {
ql_log(ql_log_warn, vha, 0x0000, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(sizeof(*req_data), GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x0000, "req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, req_data,
req_data_len);
switch (req_data->action) {
case QLA_STOP:
ret = qla2xxx_stop_stats(vha->host, req_data->stat_type);
break;
case QLA_START:
ret = qla2xxx_start_stats(vha->host, req_data->stat_type);
break;
case QLA_CLEAR:
ret = qla2xxx_reset_stats(vha->host, req_data->stat_type);
break;
default:
ql_log(ql_log_warn, vha, 0x0000, "Invalid action.\n");
ret = -EIO;
break;
}
kfree(req_data);
/* Prepare response */
rsp_data.status = ret;
bsg_job->reply_payload.payload_len = sizeof(struct ql_vnd_mng_host_stats_resp);
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
&rsp_data,
sizeof(struct ql_vnd_mng_host_stats_resp));
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return ret;
}
static int
qla2x00_get_host_stats(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct ql_vnd_stats_param *req_data;
struct ql_vnd_host_stats_resp rsp_data;
u32 req_data_len;
int ret = 0;
u64 ini_entry_count = 0;
u64 entry_count = 0;
u64 tgt_num = 0;
u64 tmp_stat_type = 0;
u64 response_len = 0;
void *data;
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != sizeof(struct ql_vnd_stats_param)) {
ql_log(ql_log_warn, vha, 0x0000, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(sizeof(*req_data), GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x0000, "req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, req_data, req_data_len);
/* Copy stat type to work on it */
tmp_stat_type = req_data->stat_type;
if (tmp_stat_type & QLA2XX_TGT_SHT_LNK_DOWN) {
/* Num of tgts connected to this host */
tgt_num = qla2x00_get_num_tgts(vha);
/* unset BIT_17 */
tmp_stat_type &= ~(1 << 17);
}
/* Total ini stats */
ini_entry_count = qla2x00_count_set_bits(tmp_stat_type);
/* Total number of entries */
entry_count = ini_entry_count + tgt_num;
response_len = sizeof(struct ql_vnd_host_stats_resp) +
(sizeof(struct ql_vnd_stat_entry) * entry_count);
if (response_len > bsg_job->reply_payload.payload_len) {
rsp_data.status = EXT_STATUS_BUFFER_TOO_SMALL;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_BUFFER_TOO_SMALL;
bsg_job->reply_payload.payload_len = sizeof(struct ql_vnd_mng_host_stats_resp);
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &rsp_data,
sizeof(struct ql_vnd_mng_host_stats_resp));
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
goto host_stat_out;
}
data = kzalloc(response_len, GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
goto host_stat_out;
}
ret = qla2xxx_get_ini_stats(fc_bsg_to_shost(bsg_job), req_data->stat_type,
data, response_len);
rsp_data.status = EXT_STATUS_OK;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
data, response_len);
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
kfree(data);
host_stat_out:
kfree(req_data);
return ret;
}
static struct fc_rport *
qla2xxx_find_rport(scsi_qla_host_t *vha, uint32_t tgt_num)
{
fc_port_t *fcport = NULL;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->rport->number == tgt_num)
return fcport->rport;
}
return NULL;
}
static int
qla2x00_get_tgt_stats(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct ql_vnd_tgt_stats_param *req_data;
u32 req_data_len;
int ret = 0;
u64 response_len = 0;
struct ql_vnd_tgt_stats_resp *data = NULL;
struct fc_rport *rport = NULL;
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x0000, "Host is not online.\n");
return -EIO;
}
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != sizeof(struct ql_vnd_stat_entry)) {
ql_log(ql_log_warn, vha, 0x0000, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(sizeof(*req_data), GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x0000, "req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt,
req_data, req_data_len);
response_len = sizeof(struct ql_vnd_tgt_stats_resp) +
sizeof(struct ql_vnd_stat_entry);
/* structure + size for one entry */
data = kzalloc(response_len, GFP_KERNEL);
if (!data) {
kfree(req_data);
return -ENOMEM;
}
if (response_len > bsg_job->reply_payload.payload_len) {
data->status = EXT_STATUS_BUFFER_TOO_SMALL;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_BUFFER_TOO_SMALL;
bsg_job->reply_payload.payload_len = sizeof(struct ql_vnd_mng_host_stats_resp);
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, data,
sizeof(struct ql_vnd_tgt_stats_resp));
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
goto tgt_stat_out;
}
rport = qla2xxx_find_rport(vha, req_data->tgt_id);
if (!rport) {
ql_log(ql_log_warn, vha, 0x0000, "target %d not found.\n", req_data->tgt_id);
ret = EXT_STATUS_INVALID_PARAM;
data->status = EXT_STATUS_INVALID_PARAM;
goto reply;
}
ret = qla2xxx_get_tgt_stats(fc_bsg_to_shost(bsg_job), req_data->stat_type,
rport, (void *)data, response_len);
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
reply:
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, data,
response_len);
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
tgt_stat_out:
kfree(data);
kfree(req_data);
return ret;
}
static int
qla2x00_manage_host_port(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct ql_vnd_mng_host_port_param *req_data;
struct ql_vnd_mng_host_port_resp rsp_data;
u32 req_data_len;
int ret = 0;
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != sizeof(struct ql_vnd_mng_host_port_param)) {
ql_log(ql_log_warn, vha, 0x0000, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(sizeof(*req_data), GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x0000, "req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, req_data, req_data_len);
switch (req_data->action) {
case QLA_ENABLE:
ret = qla2xxx_enable_port(vha->host);
break;
case QLA_DISABLE:
ret = qla2xxx_disable_port(vha->host);
break;
default:
ql_log(ql_log_warn, vha, 0x0000, "Invalid action.\n");
ret = -EIO;
break;
}
kfree(req_data);
/* Prepare response */
rsp_data.status = ret;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
bsg_job->reply_payload.payload_len = sizeof(struct ql_vnd_mng_host_port_resp);
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &rsp_data,
sizeof(struct ql_vnd_mng_host_port_resp));
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return ret;
}
static int
qla2x00_process_vendor_specific(struct scsi_qla_host *vha, struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
ql_dbg(ql_dbg_edif, vha, 0x911b, "%s FC_BSG_HST_VENDOR cmd[0]=0x%x\n",
__func__, bsg_request->rqst_data.h_vendor.vendor_cmd[0]);
switch (bsg_request->rqst_data.h_vendor.vendor_cmd[0]) {
case QL_VND_LOOPBACK:
return qla2x00_process_loopback(bsg_job);
case QL_VND_A84_RESET:
return qla84xx_reset(bsg_job);
case QL_VND_A84_UPDATE_FW:
return qla84xx_updatefw(bsg_job);
case QL_VND_A84_MGMT_CMD:
return qla84xx_mgmt_cmd(bsg_job);
case QL_VND_IIDMA:
return qla24xx_iidma(bsg_job);
case QL_VND_FCP_PRIO_CFG_CMD:
return qla24xx_proc_fcp_prio_cfg_cmd(bsg_job);
case QL_VND_READ_FLASH:
return qla2x00_read_optrom(bsg_job);
case QL_VND_UPDATE_FLASH:
return qla2x00_update_optrom(bsg_job);
case QL_VND_SET_FRU_VERSION:
return qla2x00_update_fru_versions(bsg_job);
case QL_VND_READ_FRU_STATUS:
return qla2x00_read_fru_status(bsg_job);
case QL_VND_WRITE_FRU_STATUS:
return qla2x00_write_fru_status(bsg_job);
case QL_VND_WRITE_I2C:
return qla2x00_write_i2c(bsg_job);
case QL_VND_READ_I2C:
return qla2x00_read_i2c(bsg_job);
case QL_VND_DIAG_IO_CMD:
return qla24xx_process_bidir_cmd(bsg_job);
case QL_VND_FX00_MGMT_CMD:
return qlafx00_mgmt_cmd(bsg_job);
case QL_VND_SERDES_OP:
return qla26xx_serdes_op(bsg_job);
case QL_VND_SERDES_OP_EX:
return qla8044_serdes_op(bsg_job);
case QL_VND_GET_FLASH_UPDATE_CAPS:
return qla27xx_get_flash_upd_cap(bsg_job);
case QL_VND_SET_FLASH_UPDATE_CAPS:
return qla27xx_set_flash_upd_cap(bsg_job);
case QL_VND_GET_BBCR_DATA:
return qla27xx_get_bbcr_data(bsg_job);
case QL_VND_GET_PRIV_STATS:
case QL_VND_GET_PRIV_STATS_EX:
return qla2x00_get_priv_stats(bsg_job);
case QL_VND_DPORT_DIAGNOSTICS:
return qla2x00_do_dport_diagnostics(bsg_job);
case QL_VND_DPORT_DIAGNOSTICS_V2:
return qla2x00_do_dport_diagnostics_v2(bsg_job);
case QL_VND_EDIF_MGMT:
return qla_edif_app_mgmt(bsg_job);
case QL_VND_SS_GET_FLASH_IMAGE_STATUS:
return qla2x00_get_flash_image_status(bsg_job);
case QL_VND_MANAGE_HOST_STATS:
return qla2x00_manage_host_stats(bsg_job);
case QL_VND_GET_HOST_STATS:
return qla2x00_get_host_stats(bsg_job);
case QL_VND_GET_TGT_STATS:
return qla2x00_get_tgt_stats(bsg_job);
case QL_VND_MANAGE_HOST_PORT:
return qla2x00_manage_host_port(bsg_job);
case QL_VND_MBX_PASSTHRU:
return qla2x00_mailbox_passthru(bsg_job);
default:
return -ENOSYS;
}
}
int
qla24xx_bsg_request(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
int ret = -EINVAL;
struct fc_rport *rport;
struct Scsi_Host *host;
scsi_qla_host_t *vha;
/* In case no data transferred. */
bsg_reply->reply_payload_rcv_len = 0;
if (bsg_request->msgcode == FC_BSG_RPT_ELS) {
rport = fc_bsg_to_rport(bsg_job);
if (!rport)
return ret;
host = rport_to_shost(rport);
vha = shost_priv(host);
} else {
host = fc_bsg_to_shost(bsg_job);
vha = shost_priv(host);
}
/* Disable port will bring down the chip, allow enable command */
if (bsg_request->rqst_data.h_vendor.vendor_cmd[0] == QL_VND_MANAGE_HOST_PORT ||
bsg_request->rqst_data.h_vendor.vendor_cmd[0] == QL_VND_GET_HOST_STATS)
goto skip_chip_chk;
if (vha->hw->flags.port_isolated) {
bsg_reply->result = DID_ERROR;
/* operation not permitted */
return -EPERM;
}
if (qla2x00_chip_is_down(vha)) {
ql_dbg(ql_dbg_user, vha, 0x709f,
"BSG: ISP abort active/needed -- cmd=%d.\n",
bsg_request->msgcode);
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
return -EBUSY;
}
if (test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags)) {
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
return -EIO;
}
skip_chip_chk:
ql_dbg(ql_dbg_user + ql_dbg_verbose, vha, 0x7000,
"Entered %s msgcode=0x%x. bsg ptr %px\n",
__func__, bsg_request->msgcode, bsg_job);
switch (bsg_request->msgcode) {
case FC_BSG_RPT_ELS:
case FC_BSG_HST_ELS_NOLOGIN:
ret = qla2x00_process_els(bsg_job);
break;
case FC_BSG_HST_CT:
ret = qla2x00_process_ct(bsg_job);
break;
case FC_BSG_HST_VENDOR:
ret = qla2x00_process_vendor_specific(vha, bsg_job);
break;
case FC_BSG_HST_ADD_RPORT:
case FC_BSG_HST_DEL_RPORT:
case FC_BSG_RPT_CT:
default:
ql_log(ql_log_warn, vha, 0x705a, "Unsupported BSG request.\n");
break;
}
ql_dbg(ql_dbg_user + ql_dbg_verbose, vha, 0x7000,
"%s done with return %x\n", __func__, ret);
return ret;
}
int
qla24xx_bsg_timeout(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct qla_hw_data *ha = vha->hw;
srb_t *sp;
int cnt, que;
unsigned long flags;
struct req_que *req;
ql_log(ql_log_info, vha, 0x708b, "%s CMD timeout. bsg ptr %p.\n",
__func__, bsg_job);
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x9007,
"PCI/Register disconnect.\n");
qla_pci_set_eeh_busy(vha);
}
/* find the bsg job from the active list of commands */
spin_lock_irqsave(&ha->hardware_lock, flags);
for (que = 0; que < ha->max_req_queues; que++) {
req = ha->req_q_map[que];
if (!req)
continue;
for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
sp = req->outstanding_cmds[cnt];
if (sp &&
(sp->type == SRB_CT_CMD ||
sp->type == SRB_ELS_CMD_HST ||
sp->type == SRB_ELS_CMD_HST_NOLOGIN ||
sp->type == SRB_FXIOCB_BCMD) &&
sp->u.bsg_job == bsg_job) {
req->outstanding_cmds[cnt] = NULL;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (!ha->flags.eeh_busy && ha->isp_ops->abort_command(sp)) {
ql_log(ql_log_warn, vha, 0x7089,
"mbx abort_command failed.\n");
bsg_reply->result = -EIO;
} else {
ql_dbg(ql_dbg_user, vha, 0x708a,
"mbx abort_command success.\n");
bsg_reply->result = 0;
}
spin_lock_irqsave(&ha->hardware_lock, flags);
goto done;
}
}
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
ql_log(ql_log_info, vha, 0x708b, "SRB not found to abort.\n");
bsg_reply->result = -ENXIO;
return 0;
done:
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return 0;
}
int qla2x00_mailbox_passthru(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
int ret = -EINVAL;
int ptsize = sizeof(struct qla_mbx_passthru);
struct qla_mbx_passthru *req_data = NULL;
uint32_t req_data_len;
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != ptsize) {
ql_log(ql_log_warn, vha, 0xf0a3, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(ptsize, GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0xf0a4,
"req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, req_data, ptsize);
ret = qla_mailbox_passthru(vha, req_data->mbx_in, req_data->mbx_out);
/* Copy the req_data in request buffer */
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, req_data, ptsize);
bsg_reply->reply_payload_rcv_len = ptsize;
if (ret == QLA_SUCCESS)
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
else
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_ERR;
bsg_job->reply_len = sizeof(*bsg_job->reply);
bsg_reply->result = DID_OK << 16;
bsg_job_done(bsg_job, bsg_reply->result, bsg_reply->reply_payload_rcv_len);
kfree(req_data);
return ret;
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_bsg.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include <linux/delay.h>
#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/pci.h>
#include <linux/ratelimit.h>
#include <linux/vmalloc.h>
#include <scsi/scsi_tcq.h>
#define MASK(n) ((1ULL<<(n))-1)
#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
((addr >> 25) & 0x3ff))
#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | \
((addr >> 25) & 0x3ff))
#define MS_WIN(addr) (addr & 0x0ffc0000)
#define QLA82XX_PCI_MN_2M (0)
#define QLA82XX_PCI_MS_2M (0x80000)
#define QLA82XX_PCI_OCM0_2M (0xc0000)
#define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
#define BLOCK_PROTECT_BITS 0x0F
/* CRB window related */
#define CRB_BLK(off) ((off >> 20) & 0x3f)
#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
#define CRB_WINDOW_2M (0x130060)
#define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
#define CRB_HI(off) ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
((off) & 0xf0000))
#define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
#define CRB_INDIRECT_2M (0x1e0000UL)
#define MAX_CRB_XFORM 60
static unsigned long crb_addr_xform[MAX_CRB_XFORM];
static int qla82xx_crb_table_initialized;
#define qla82xx_crb_addr_transform(name) \
(crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
const int MD_MIU_TEST_AGT_RDDATA[] = {
0x410000A8, 0x410000AC,
0x410000B8, 0x410000BC
};
static void qla82xx_crb_addr_transform_setup(void)
{
qla82xx_crb_addr_transform(XDMA);
qla82xx_crb_addr_transform(TIMR);
qla82xx_crb_addr_transform(SRE);
qla82xx_crb_addr_transform(SQN3);
qla82xx_crb_addr_transform(SQN2);
qla82xx_crb_addr_transform(SQN1);
qla82xx_crb_addr_transform(SQN0);
qla82xx_crb_addr_transform(SQS3);
qla82xx_crb_addr_transform(SQS2);
qla82xx_crb_addr_transform(SQS1);
qla82xx_crb_addr_transform(SQS0);
qla82xx_crb_addr_transform(RPMX7);
qla82xx_crb_addr_transform(RPMX6);
qla82xx_crb_addr_transform(RPMX5);
qla82xx_crb_addr_transform(RPMX4);
qla82xx_crb_addr_transform(RPMX3);
qla82xx_crb_addr_transform(RPMX2);
qla82xx_crb_addr_transform(RPMX1);
qla82xx_crb_addr_transform(RPMX0);
qla82xx_crb_addr_transform(ROMUSB);
qla82xx_crb_addr_transform(SN);
qla82xx_crb_addr_transform(QMN);
qla82xx_crb_addr_transform(QMS);
qla82xx_crb_addr_transform(PGNI);
qla82xx_crb_addr_transform(PGND);
qla82xx_crb_addr_transform(PGN3);
qla82xx_crb_addr_transform(PGN2);
qla82xx_crb_addr_transform(PGN1);
qla82xx_crb_addr_transform(PGN0);
qla82xx_crb_addr_transform(PGSI);
qla82xx_crb_addr_transform(PGSD);
qla82xx_crb_addr_transform(PGS3);
qla82xx_crb_addr_transform(PGS2);
qla82xx_crb_addr_transform(PGS1);
qla82xx_crb_addr_transform(PGS0);
qla82xx_crb_addr_transform(PS);
qla82xx_crb_addr_transform(PH);
qla82xx_crb_addr_transform(NIU);
qla82xx_crb_addr_transform(I2Q);
qla82xx_crb_addr_transform(EG);
qla82xx_crb_addr_transform(MN);
qla82xx_crb_addr_transform(MS);
qla82xx_crb_addr_transform(CAS2);
qla82xx_crb_addr_transform(CAS1);
qla82xx_crb_addr_transform(CAS0);
qla82xx_crb_addr_transform(CAM);
qla82xx_crb_addr_transform(C2C1);
qla82xx_crb_addr_transform(C2C0);
qla82xx_crb_addr_transform(SMB);
qla82xx_crb_addr_transform(OCM0);
/*
* Used only in P3 just define it for P2 also.
*/
qla82xx_crb_addr_transform(I2C0);
qla82xx_crb_table_initialized = 1;
}
static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
{{{0, 0, 0, 0} } },
{{{1, 0x0100000, 0x0102000, 0x120000},
{1, 0x0110000, 0x0120000, 0x130000},
{1, 0x0120000, 0x0122000, 0x124000},
{1, 0x0130000, 0x0132000, 0x126000},
{1, 0x0140000, 0x0142000, 0x128000},
{1, 0x0150000, 0x0152000, 0x12a000},
{1, 0x0160000, 0x0170000, 0x110000},
{1, 0x0170000, 0x0172000, 0x12e000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x01e0000, 0x01e0800, 0x122000},
{0, 0x0000000, 0x0000000, 0x000000} } } ,
{{{1, 0x0200000, 0x0210000, 0x180000} } },
{{{0, 0, 0, 0} } },
{{{1, 0x0400000, 0x0401000, 0x169000} } },
{{{1, 0x0500000, 0x0510000, 0x140000} } },
{{{1, 0x0600000, 0x0610000, 0x1c0000} } },
{{{1, 0x0700000, 0x0704000, 0x1b8000} } },
{{{1, 0x0800000, 0x0802000, 0x170000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x08f0000, 0x08f2000, 0x172000} } },
{{{1, 0x0900000, 0x0902000, 0x174000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x09f0000, 0x09f2000, 0x176000} } },
{{{0, 0x0a00000, 0x0a02000, 0x178000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x0af0000, 0x0af2000, 0x17a000} } },
{{{0, 0x0b00000, 0x0b02000, 0x17c000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
{{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },
{{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
{{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
{{{1, 0x0f00000, 0x0f01000, 0x164000} } },
{{{0, 0x1000000, 0x1004000, 0x1a8000} } },
{{{1, 0x1100000, 0x1101000, 0x160000} } },
{{{1, 0x1200000, 0x1201000, 0x161000} } },
{{{1, 0x1300000, 0x1301000, 0x162000} } },
{{{1, 0x1400000, 0x1401000, 0x163000} } },
{{{1, 0x1500000, 0x1501000, 0x165000} } },
{{{1, 0x1600000, 0x1601000, 0x166000} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{1, 0x1d00000, 0x1d10000, 0x190000} } },
{{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
{{{1, 0x1f00000, 0x1f10000, 0x150000} } },
{{{0} } },
{{{1, 0x2100000, 0x2102000, 0x120000},
{1, 0x2110000, 0x2120000, 0x130000},
{1, 0x2120000, 0x2122000, 0x124000},
{1, 0x2130000, 0x2132000, 0x126000},
{1, 0x2140000, 0x2142000, 0x128000},
{1, 0x2150000, 0x2152000, 0x12a000},
{1, 0x2160000, 0x2170000, 0x110000},
{1, 0x2170000, 0x2172000, 0x12e000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000} } },
{{{1, 0x2200000, 0x2204000, 0x1b0000} } },
{{{0} } },
{{{0} } },
{{{0} } },
{{{0} } },
{{{0} } },
{{{1, 0x2800000, 0x2804000, 0x1a4000} } },
{{{1, 0x2900000, 0x2901000, 0x16b000} } },
{{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
{{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
{{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
{{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
{{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
{{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
{{{1, 0x3000000, 0x3000400, 0x1adc00} } },
{{{0, 0x3100000, 0x3104000, 0x1a8000} } },
{{{1, 0x3200000, 0x3204000, 0x1d4000} } },
{{{1, 0x3300000, 0x3304000, 0x1a0000} } },
{{{0} } },
{{{1, 0x3500000, 0x3500400, 0x1ac000} } },
{{{1, 0x3600000, 0x3600400, 0x1ae000} } },
{{{1, 0x3700000, 0x3700400, 0x1ae400} } },
{{{1, 0x3800000, 0x3804000, 0x1d0000} } },
{{{1, 0x3900000, 0x3904000, 0x1b4000} } },
{{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
{{{0} } },
{{{0} } },
{{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
{{{1, 0x3e00000, 0x3e01000, 0x167000} } },
{{{1, 0x3f00000, 0x3f01000, 0x168000} } }
};
/*
* top 12 bits of crb internal address (hub, agent)
*/
static unsigned qla82xx_crb_hub_agt[64] = {
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
0,
0,
0,
0,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
0,
};
/* Device states */
static const char *const q_dev_state[] = {
[QLA8XXX_DEV_UNKNOWN] = "Unknown",
[QLA8XXX_DEV_COLD] = "Cold/Re-init",
[QLA8XXX_DEV_INITIALIZING] = "Initializing",
[QLA8XXX_DEV_READY] = "Ready",
[QLA8XXX_DEV_NEED_RESET] = "Need Reset",
[QLA8XXX_DEV_NEED_QUIESCENT] = "Need Quiescent",
[QLA8XXX_DEV_FAILED] = "Failed",
[QLA8XXX_DEV_QUIESCENT] = "Quiescent",
};
const char *qdev_state(uint32_t dev_state)
{
return (dev_state < MAX_STATES) ? q_dev_state[dev_state] : "Unknown";
}
/*
* In: 'off_in' is offset from CRB space in 128M pci map
* Out: 'off_out' is 2M pci map addr
* side effect: lock crb window
*/
static void
qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong off_in,
void __iomem **off_out)
{
u32 win_read;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
ha->crb_win = CRB_HI(off_in);
writel(ha->crb_win, CRB_WINDOW_2M + ha->nx_pcibase);
/* Read back value to make sure write has gone through before trying
* to use it.
*/
win_read = rd_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase);
if (win_read != ha->crb_win) {
ql_dbg(ql_dbg_p3p, vha, 0xb000,
"%s: Written crbwin (0x%x) "
"!= Read crbwin (0x%x), off=0x%lx.\n",
__func__, ha->crb_win, win_read, off_in);
}
*off_out = (off_in & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
}
static int
qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *ha, ulong off_in,
void __iomem **off_out)
{
struct crb_128M_2M_sub_block_map *m;
if (off_in >= QLA82XX_CRB_MAX)
return -1;
if (off_in >= QLA82XX_PCI_CAMQM && off_in < QLA82XX_PCI_CAMQM_2M_END) {
*off_out = (off_in - QLA82XX_PCI_CAMQM) +
QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
return 0;
}
if (off_in < QLA82XX_PCI_CRBSPACE)
return -1;
off_in -= QLA82XX_PCI_CRBSPACE;
/* Try direct map */
m = &crb_128M_2M_map[CRB_BLK(off_in)].sub_block[CRB_SUBBLK(off_in)];
if (m->valid && (m->start_128M <= off_in) && (m->end_128M > off_in)) {
*off_out = off_in + m->start_2M - m->start_128M + ha->nx_pcibase;
return 0;
}
/* Not in direct map, use crb window */
*off_out = (void __iomem *)off_in;
return 1;
}
#define CRB_WIN_LOCK_TIMEOUT 100000000
static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
{
int done = 0, timeout = 0;
while (!done) {
/* acquire semaphore3 from PCI HW block */
done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
if (done == 1)
break;
if (timeout >= CRB_WIN_LOCK_TIMEOUT)
return -1;
timeout++;
}
qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
return 0;
}
int
qla82xx_wr_32(struct qla_hw_data *ha, ulong off_in, u32 data)
{
void __iomem *off;
unsigned long flags = 0;
int rv;
rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
BUG_ON(rv == -1);
if (rv == 1) {
#ifndef __CHECKER__
write_lock_irqsave(&ha->hw_lock, flags);
#endif
qla82xx_crb_win_lock(ha);
qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
}
writel(data, (void __iomem *)off);
if (rv == 1) {
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
#ifndef __CHECKER__
write_unlock_irqrestore(&ha->hw_lock, flags);
#endif
}
return 0;
}
int
qla82xx_rd_32(struct qla_hw_data *ha, ulong off_in)
{
void __iomem *off;
unsigned long flags = 0;
int rv;
u32 data;
rv = qla82xx_pci_get_crb_addr_2M(ha, off_in, &off);
BUG_ON(rv == -1);
if (rv == 1) {
#ifndef __CHECKER__
write_lock_irqsave(&ha->hw_lock, flags);
#endif
qla82xx_crb_win_lock(ha);
qla82xx_pci_set_crbwindow_2M(ha, off_in, &off);
}
data = rd_reg_dword(off);
if (rv == 1) {
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
#ifndef __CHECKER__
write_unlock_irqrestore(&ha->hw_lock, flags);
#endif
}
return data;
}
/*
* Context: task, might sleep
*/
int qla82xx_idc_lock(struct qla_hw_data *ha)
{
const int delay_ms = 100, timeout_ms = 2000;
int done, total = 0;
might_sleep();
while (true) {
/* acquire semaphore5 from PCI HW block */
done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
if (done == 1)
break;
if (WARN_ON_ONCE(total >= timeout_ms))
return -1;
total += delay_ms;
msleep(delay_ms);
}
return 0;
}
void qla82xx_idc_unlock(struct qla_hw_data *ha)
{
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
}
/*
* check memory access boundary.
* used by test agent. support ddr access only for now
*/
static unsigned long
qla82xx_pci_mem_bound_check(struct qla_hw_data *ha,
unsigned long long addr, int size)
{
if (!addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX) ||
!addr_in_range(addr + size - 1, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX) ||
((size != 1) && (size != 2) && (size != 4) && (size != 8)))
return 0;
else
return 1;
}
static int qla82xx_pci_set_window_warning_count;
static unsigned long
qla82xx_pci_set_window(struct qla_hw_data *ha, unsigned long long addr)
{
int window;
u32 win_read;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX)) {
/* DDR network side */
window = MN_WIN(addr);
ha->ddr_mn_window = window;
qla82xx_wr_32(ha,
ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
win_read = qla82xx_rd_32(ha,
ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
if ((win_read << 17) != window) {
ql_dbg(ql_dbg_p3p, vha, 0xb003,
"%s: Written MNwin (0x%x) != Read MNwin (0x%x).\n",
__func__, window, win_read);
}
addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
} else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
QLA82XX_ADDR_OCM0_MAX)) {
unsigned int temp1;
if ((addr & 0x00ff800) == 0xff800) {
ql_log(ql_log_warn, vha, 0xb004,
"%s: QM access not handled.\n", __func__);
addr = -1UL;
}
window = OCM_WIN(addr);
ha->ddr_mn_window = window;
qla82xx_wr_32(ha,
ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
win_read = qla82xx_rd_32(ha,
ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
temp1 = ((window & 0x1FF) << 7) |
((window & 0x0FFFE0000) >> 17);
if (win_read != temp1) {
ql_log(ql_log_warn, vha, 0xb005,
"%s: Written OCMwin (0x%x) != Read OCMwin (0x%x).\n",
__func__, temp1, win_read);
}
addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
} else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET,
QLA82XX_P3_ADDR_QDR_NET_MAX)) {
/* QDR network side */
window = MS_WIN(addr);
ha->qdr_sn_window = window;
qla82xx_wr_32(ha,
ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
win_read = qla82xx_rd_32(ha,
ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
if (win_read != window) {
ql_log(ql_log_warn, vha, 0xb006,
"%s: Written MSwin (0x%x) != Read MSwin (0x%x).\n",
__func__, window, win_read);
}
addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
} else {
/*
* peg gdb frequently accesses memory that doesn't exist,
* this limits the chit chat so debugging isn't slowed down.
*/
if ((qla82xx_pci_set_window_warning_count++ < 8) ||
(qla82xx_pci_set_window_warning_count%64 == 0)) {
ql_log(ql_log_warn, vha, 0xb007,
"%s: Warning:%s Unknown address range!.\n",
__func__, QLA2XXX_DRIVER_NAME);
}
addr = -1UL;
}
return addr;
}
/* check if address is in the same windows as the previous access */
static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
unsigned long long addr)
{
int window;
unsigned long long qdr_max;
qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
/* DDR network side */
if (addr_in_range(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX))
BUG();
else if (addr_in_range(addr, QLA82XX_ADDR_OCM0,
QLA82XX_ADDR_OCM0_MAX))
return 1;
else if (addr_in_range(addr, QLA82XX_ADDR_OCM1,
QLA82XX_ADDR_OCM1_MAX))
return 1;
else if (addr_in_range(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) {
/* QDR network side */
window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
if (ha->qdr_sn_window == window)
return 1;
}
return 0;
}
static int qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
u64 off, void *data, int size)
{
unsigned long flags;
void __iomem *addr = NULL;
int ret = 0;
u64 start;
uint8_t __iomem *mem_ptr = NULL;
unsigned long mem_base;
unsigned long mem_page;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
write_lock_irqsave(&ha->hw_lock, flags);
/*
* If attempting to access unknown address or straddle hw windows,
* do not access.
*/
start = qla82xx_pci_set_window(ha, off);
if ((start == -1UL) ||
(qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
write_unlock_irqrestore(&ha->hw_lock, flags);
ql_log(ql_log_fatal, vha, 0xb008,
"%s out of bound pci memory "
"access, offset is 0x%llx.\n",
QLA2XXX_DRIVER_NAME, off);
return -1;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
mem_base = pci_resource_start(ha->pdev, 0);
mem_page = start & PAGE_MASK;
/* Map two pages whenever user tries to access addresses in two
* consecutive pages.
*/
if (mem_page != ((start + size - 1) & PAGE_MASK))
mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
else
mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
if (mem_ptr == NULL) {
*(u8 *)data = 0;
return -1;
}
addr = mem_ptr;
addr += start & (PAGE_SIZE - 1);
write_lock_irqsave(&ha->hw_lock, flags);
switch (size) {
case 1:
*(u8 *)data = readb(addr);
break;
case 2:
*(u16 *)data = readw(addr);
break;
case 4:
*(u32 *)data = readl(addr);
break;
case 8:
*(u64 *)data = readq(addr);
break;
default:
ret = -1;
break;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
if (mem_ptr)
iounmap(mem_ptr);
return ret;
}
static int
qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
u64 off, void *data, int size)
{
unsigned long flags;
void __iomem *addr = NULL;
int ret = 0;
u64 start;
uint8_t __iomem *mem_ptr = NULL;
unsigned long mem_base;
unsigned long mem_page;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
write_lock_irqsave(&ha->hw_lock, flags);
/*
* If attempting to access unknown address or straddle hw windows,
* do not access.
*/
start = qla82xx_pci_set_window(ha, off);
if ((start == -1UL) ||
(qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
write_unlock_irqrestore(&ha->hw_lock, flags);
ql_log(ql_log_fatal, vha, 0xb009,
"%s out of bound memory "
"access, offset is 0x%llx.\n",
QLA2XXX_DRIVER_NAME, off);
return -1;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
mem_base = pci_resource_start(ha->pdev, 0);
mem_page = start & PAGE_MASK;
/* Map two pages whenever user tries to access addresses in two
* consecutive pages.
*/
if (mem_page != ((start + size - 1) & PAGE_MASK))
mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
else
mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
if (mem_ptr == NULL)
return -1;
addr = mem_ptr;
addr += start & (PAGE_SIZE - 1);
write_lock_irqsave(&ha->hw_lock, flags);
switch (size) {
case 1:
writeb(*(u8 *)data, addr);
break;
case 2:
writew(*(u16 *)data, addr);
break;
case 4:
writel(*(u32 *)data, addr);
break;
case 8:
writeq(*(u64 *)data, addr);
break;
default:
ret = -1;
break;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
if (mem_ptr)
iounmap(mem_ptr);
return ret;
}
#define MTU_FUDGE_FACTOR 100
static unsigned long
qla82xx_decode_crb_addr(unsigned long addr)
{
int i;
unsigned long base_addr, offset, pci_base;
if (!qla82xx_crb_table_initialized)
qla82xx_crb_addr_transform_setup();
pci_base = ADDR_ERROR;
base_addr = addr & 0xfff00000;
offset = addr & 0x000fffff;
for (i = 0; i < MAX_CRB_XFORM; i++) {
if (crb_addr_xform[i] == base_addr) {
pci_base = i << 20;
break;
}
}
if (pci_base == ADDR_ERROR)
return pci_base;
return pci_base + offset;
}
static long rom_max_timeout = 100;
static long qla82xx_rom_lock_timeout = 100;
static int
qla82xx_rom_lock(struct qla_hw_data *ha)
{
int done = 0, timeout = 0;
uint32_t lock_owner = 0;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
while (!done) {
/* acquire semaphore2 from PCI HW block */
done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
if (done == 1)
break;
if (timeout >= qla82xx_rom_lock_timeout) {
lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
ql_dbg(ql_dbg_p3p, vha, 0xb157,
"%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
__func__, ha->portnum, lock_owner);
return -1;
}
timeout++;
}
qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ha->portnum);
return 0;
}
static void
qla82xx_rom_unlock(struct qla_hw_data *ha)
{
qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, 0xffffffff);
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
}
static int
qla82xx_wait_rom_busy(struct qla_hw_data *ha)
{
long timeout = 0;
long done = 0 ;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
while (done == 0) {
done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
done &= 4;
timeout++;
if (timeout >= rom_max_timeout) {
ql_dbg(ql_dbg_p3p, vha, 0xb00a,
"%s: Timeout reached waiting for rom busy.\n",
QLA2XXX_DRIVER_NAME);
return -1;
}
}
return 0;
}
static int
qla82xx_wait_rom_done(struct qla_hw_data *ha)
{
long timeout = 0;
long done = 0 ;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
while (done == 0) {
done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
done &= 2;
timeout++;
if (timeout >= rom_max_timeout) {
ql_dbg(ql_dbg_p3p, vha, 0xb00b,
"%s: Timeout reached waiting for rom done.\n",
QLA2XXX_DRIVER_NAME);
return -1;
}
}
return 0;
}
static int
qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
{
uint32_t off_value, rval = 0;
wrt_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase, off & 0xFFFF0000);
/* Read back value to make sure write has gone through */
rd_reg_dword(CRB_WINDOW_2M + ha->nx_pcibase);
off_value = (off & 0x0000FFFF);
if (flag)
wrt_reg_dword(off_value + CRB_INDIRECT_2M + ha->nx_pcibase,
data);
else
rval = rd_reg_dword(off_value + CRB_INDIRECT_2M +
ha->nx_pcibase);
return rval;
}
static int
qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
{
/* Dword reads to flash. */
qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
*valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
(addr & 0x0000FFFF), 0, 0);
return 0;
}
static int
qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
{
int ret, loops = 0;
uint32_t lock_owner = 0;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
udelay(100);
schedule();
loops++;
}
if (loops >= 50000) {
lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
ql_log(ql_log_fatal, vha, 0x00b9,
"Failed to acquire SEM2 lock, Lock Owner %u.\n",
lock_owner);
return -1;
}
ret = qla82xx_do_rom_fast_read(ha, addr, valp);
qla82xx_rom_unlock(ha);
return ret;
}
static int
qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
qla82xx_wait_rom_busy(ha);
if (qla82xx_wait_rom_done(ha)) {
ql_log(ql_log_warn, vha, 0xb00c,
"Error waiting for rom done.\n");
return -1;
}
*val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
return 0;
}
static int
qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
{
uint32_t val = 0;
int i, ret;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
for (i = 0; i < 50000; i++) {
ret = qla82xx_read_status_reg(ha, &val);
if (ret < 0 || (val & 1) == 0)
return ret;
udelay(10);
cond_resched();
}
ql_log(ql_log_warn, vha, 0xb00d,
"Timeout reached waiting for write finish.\n");
return -1;
}
static int
qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
{
uint32_t val;
qla82xx_wait_rom_busy(ha);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
qla82xx_wait_rom_busy(ha);
if (qla82xx_wait_rom_done(ha))
return -1;
if (qla82xx_read_status_reg(ha, &val) != 0)
return -1;
if ((val & 2) != 2)
return -1;
return 0;
}
static int
qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
if (qla82xx_flash_set_write_enable(ha))
return -1;
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
if (qla82xx_wait_rom_done(ha)) {
ql_log(ql_log_warn, vha, 0xb00e,
"Error waiting for rom done.\n");
return -1;
}
return qla82xx_flash_wait_write_finish(ha);
}
static int
qla82xx_write_disable_flash(struct qla_hw_data *ha)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
if (qla82xx_wait_rom_done(ha)) {
ql_log(ql_log_warn, vha, 0xb00f,
"Error waiting for rom done.\n");
return -1;
}
return 0;
}
static int
ql82xx_rom_lock_d(struct qla_hw_data *ha)
{
int loops = 0;
uint32_t lock_owner = 0;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
udelay(100);
cond_resched();
loops++;
}
if (loops >= 50000) {
lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
ql_log(ql_log_warn, vha, 0xb010,
"ROM lock failed, Lock Owner %u.\n", lock_owner);
return -1;
}
return 0;
}
static int
qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
uint32_t data)
{
int ret = 0;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
ret = ql82xx_rom_lock_d(ha);
if (ret < 0) {
ql_log(ql_log_warn, vha, 0xb011,
"ROM lock failed.\n");
return ret;
}
ret = qla82xx_flash_set_write_enable(ha);
if (ret < 0)
goto done_write;
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
qla82xx_wait_rom_busy(ha);
if (qla82xx_wait_rom_done(ha)) {
ql_log(ql_log_warn, vha, 0xb012,
"Error waiting for rom done.\n");
ret = -1;
goto done_write;
}
ret = qla82xx_flash_wait_write_finish(ha);
done_write:
qla82xx_rom_unlock(ha);
return ret;
}
/* This routine does CRB initialize sequence
* to put the ISP into operational state
*/
static int
qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
{
int addr, val;
int i ;
struct crb_addr_pair *buf;
unsigned long off;
unsigned offset, n;
struct qla_hw_data *ha = vha->hw;
struct crb_addr_pair {
long addr;
long data;
};
/* Halt all the individual PEGs and other blocks of the ISP */
qla82xx_rom_lock(ha);
/* disable all I2Q */
qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
/* disable all niu interrupts */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
/* disable xge rx/tx */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
/* disable xg1 rx/tx */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
/* disable sideband mac */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
/* disable ap0 mac */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
/* disable ap1 mac */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
/* halt sre */
val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
/* halt epg */
qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
/* halt timers */
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
/* halt pegs */
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
msleep(20);
/* big hammer */
if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
/* don't reset CAM block on reset */
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
else
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
qla82xx_rom_unlock(ha);
/* Read the signature value from the flash.
* Offset 0: Contain signature (0xcafecafe)
* Offset 4: Offset and number of addr/value pairs
* that present in CRB initialize sequence
*/
n = 0;
if (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
qla82xx_rom_fast_read(ha, 4, &n) != 0) {
ql_log(ql_log_fatal, vha, 0x006e,
"Error Reading crb_init area: n: %08x.\n", n);
return -1;
}
/* Offset in flash = lower 16 bits
* Number of entries = upper 16 bits
*/
offset = n & 0xffffU;
n = (n >> 16) & 0xffffU;
/* number of addr/value pair should not exceed 1024 entries */
if (n >= 1024) {
ql_log(ql_log_fatal, vha, 0x0071,
"Card flash not initialized:n=0x%x.\n", n);
return -1;
}
ql_log(ql_log_info, vha, 0x0072,
"%d CRB init values found in ROM.\n", n);
buf = kmalloc_array(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
if (buf == NULL) {
ql_log(ql_log_fatal, vha, 0x010c,
"Unable to allocate memory.\n");
return -ENOMEM;
}
for (i = 0; i < n; i++) {
if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
qla82xx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) {
kfree(buf);
return -1;
}
buf[i].addr = addr;
buf[i].data = val;
}
for (i = 0; i < n; i++) {
/* Translate internal CRB initialization
* address to PCI bus address
*/
off = qla82xx_decode_crb_addr((unsigned long)buf[i].addr) +
QLA82XX_PCI_CRBSPACE;
/* Not all CRB addr/value pair to be written,
* some of them are skipped
*/
/* skipping cold reboot MAGIC */
if (off == QLA82XX_CAM_RAM(0x1fc))
continue;
/* do not reset PCI */
if (off == (ROMUSB_GLB + 0xbc))
continue;
/* skip core clock, so that firmware can increase the clock */
if (off == (ROMUSB_GLB + 0xc8))
continue;
/* skip the function enable register */
if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
continue;
if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
continue;
if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
continue;
if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
continue;
if (off == ADDR_ERROR) {
ql_log(ql_log_fatal, vha, 0x0116,
"Unknown addr: 0x%08lx.\n", buf[i].addr);
continue;
}
qla82xx_wr_32(ha, off, buf[i].data);
/* ISP requires much bigger delay to settle down,
* else crb_window returns 0xffffffff
*/
if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
msleep(1000);
/* ISP requires millisec delay between
* successive CRB register updation
*/
msleep(1);
}
kfree(buf);
/* Resetting the data and instruction cache */
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
/* Clear all protocol processing engines */
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
return 0;
}
static int
qla82xx_pci_mem_write_2M(struct qla_hw_data *ha,
u64 off, void *data, int size)
{
int i, j, ret = 0, loop, sz[2], off0;
int scale, shift_amount, startword;
uint32_t temp;
uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
/*
* If not MN, go check for MS or invalid.
*/
if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
mem_crb = QLA82XX_CRB_QDR_NET;
else {
mem_crb = QLA82XX_CRB_DDR_NET;
if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
return qla82xx_pci_mem_write_direct(ha,
off, data, size);
}
off0 = off & 0x7;
sz[0] = (size < (8 - off0)) ? size : (8 - off0);
sz[1] = size - sz[0];
off8 = off & 0xfffffff0;
loop = (((off & 0xf) + size - 1) >> 4) + 1;
shift_amount = 4;
scale = 2;
startword = (off & 0xf)/8;
for (i = 0; i < loop; i++) {
if (qla82xx_pci_mem_read_2M(ha, off8 +
(i << shift_amount), &word[i * scale], 8))
return -1;
}
switch (size) {
case 1:
tmpw = *((uint8_t *)data);
break;
case 2:
tmpw = *((uint16_t *)data);
break;
case 4:
tmpw = *((uint32_t *)data);
break;
case 8:
default:
tmpw = *((uint64_t *)data);
break;
}
if (sz[0] == 8) {
word[startword] = tmpw;
} else {
word[startword] &=
~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
word[startword] |= tmpw << (off0 * 8);
}
if (sz[1] != 0) {
word[startword+1] &= ~(~0ULL << (sz[1] * 8));
word[startword+1] |= tmpw >> (sz[0] * 8);
}
for (i = 0; i < loop; i++) {
temp = off8 + (i << shift_amount);
qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
temp = 0;
qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
temp = word[i * scale] & 0xffffffff;
qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
temp = (word[i * scale] >> 32) & 0xffffffff;
qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
temp = word[i*scale + 1] & 0xffffffff;
qla82xx_wr_32(ha, mem_crb +
MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
temp = (word[i*scale + 1] >> 32) & 0xffffffff;
qla82xx_wr_32(ha, mem_crb +
MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
if ((temp & MIU_TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
if (printk_ratelimit())
dev_err(&ha->pdev->dev,
"failed to write through agent.\n");
ret = -1;
break;
}
}
return ret;
}
static int
qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
{
int i;
long size = 0;
long flashaddr = ha->flt_region_bootload << 2;
long memaddr = BOOTLD_START;
u64 data;
u32 high, low;
size = (IMAGE_START - BOOTLD_START) / 8;
for (i = 0; i < size; i++) {
if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
(qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
return -1;
}
data = ((u64)high << 32) | low ;
qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
flashaddr += 8;
memaddr += 8;
if (i % 0x1000 == 0)
msleep(1);
}
udelay(100);
read_lock(&ha->hw_lock);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
read_unlock(&ha->hw_lock);
return 0;
}
int
qla82xx_pci_mem_read_2M(struct qla_hw_data *ha,
u64 off, void *data, int size)
{
int i, j = 0, k, start, end, loop, sz[2], off0[2];
int shift_amount;
uint32_t temp;
uint64_t off8, val, mem_crb, word[2] = {0, 0};
/*
* If not MN, go check for MS or invalid.
*/
if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
mem_crb = QLA82XX_CRB_QDR_NET;
else {
mem_crb = QLA82XX_CRB_DDR_NET;
if (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
return qla82xx_pci_mem_read_direct(ha,
off, data, size);
}
off8 = off & 0xfffffff0;
off0[0] = off & 0xf;
sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
shift_amount = 4;
loop = ((off0[0] + size - 1) >> shift_amount) + 1;
off0[1] = 0;
sz[1] = size - sz[0];
for (i = 0; i < loop; i++) {
temp = off8 + (i << shift_amount);
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
temp = 0;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
temp = MIU_TA_CTL_ENABLE;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qla82xx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
if ((temp & MIU_TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
if (printk_ratelimit())
dev_err(&ha->pdev->dev,
"failed to read through agent.\n");
break;
}
start = off0[i] >> 2;
end = (off0[i] + sz[i] - 1) >> 2;
for (k = start; k <= end; k++) {
temp = qla82xx_rd_32(ha,
mem_crb + MIU_TEST_AGT_RDDATA(k));
word[i] |= ((uint64_t)temp << (32 * (k & 1)));
}
}
if (j >= MAX_CTL_CHECK)
return -1;
if ((off0[0] & 7) == 0) {
val = word[0];
} else {
val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
}
switch (size) {
case 1:
*(uint8_t *)data = val;
break;
case 2:
*(uint16_t *)data = val;
break;
case 4:
*(uint32_t *)data = val;
break;
case 8:
*(uint64_t *)data = val;
break;
}
return 0;
}
static struct qla82xx_uri_table_desc *
qla82xx_get_table_desc(const u8 *unirom, int section)
{
uint32_t i;
struct qla82xx_uri_table_desc *directory =
(struct qla82xx_uri_table_desc *)&unirom[0];
uint32_t offset;
uint32_t tab_type;
uint32_t entries = le32_to_cpu(directory->num_entries);
for (i = 0; i < entries; i++) {
offset = le32_to_cpu(directory->findex) +
(i * le32_to_cpu(directory->entry_size));
tab_type = get_unaligned_le32((u32 *)&unirom[offset] + 8);
if (tab_type == section)
return (struct qla82xx_uri_table_desc *)&unirom[offset];
}
return NULL;
}
static struct qla82xx_uri_data_desc *
qla82xx_get_data_desc(struct qla_hw_data *ha,
u32 section, u32 idx_offset)
{
const u8 *unirom = ha->hablob->fw->data;
int idx = get_unaligned_le32((u32 *)&unirom[ha->file_prd_off] +
idx_offset);
struct qla82xx_uri_table_desc *tab_desc = NULL;
uint32_t offset;
tab_desc = qla82xx_get_table_desc(unirom, section);
if (!tab_desc)
return NULL;
offset = le32_to_cpu(tab_desc->findex) +
(le32_to_cpu(tab_desc->entry_size) * idx);
return (struct qla82xx_uri_data_desc *)&unirom[offset];
}
static u8 *
qla82xx_get_bootld_offset(struct qla_hw_data *ha)
{
u32 offset = BOOTLD_START;
struct qla82xx_uri_data_desc *uri_desc = NULL;
if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
uri_desc = qla82xx_get_data_desc(ha,
QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
if (uri_desc)
offset = le32_to_cpu(uri_desc->findex);
}
return (u8 *)&ha->hablob->fw->data[offset];
}
static u32 qla82xx_get_fw_size(struct qla_hw_data *ha)
{
struct qla82xx_uri_data_desc *uri_desc = NULL;
if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
QLA82XX_URI_FIRMWARE_IDX_OFF);
if (uri_desc)
return le32_to_cpu(uri_desc->size);
}
return get_unaligned_le32(&ha->hablob->fw->data[FW_SIZE_OFFSET]);
}
static u8 *
qla82xx_get_fw_offs(struct qla_hw_data *ha)
{
u32 offset = IMAGE_START;
struct qla82xx_uri_data_desc *uri_desc = NULL;
if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
QLA82XX_URI_FIRMWARE_IDX_OFF);
if (uri_desc)
offset = le32_to_cpu(uri_desc->findex);
}
return (u8 *)&ha->hablob->fw->data[offset];
}
/* PCI related functions */
int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
{
unsigned long val = 0;
u32 control;
switch (region) {
case 0:
val = 0;
break;
case 1:
pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
val = control + QLA82XX_MSIX_TBL_SPACE;
break;
}
return val;
}
int
qla82xx_iospace_config(struct qla_hw_data *ha)
{
uint32_t len = 0;
if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x000c,
"Failed to reserver selected regions.\n");
goto iospace_error_exit;
}
/* Use MMIO operations for all accesses. */
if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x000d,
"Region #0 not an MMIO resource, aborting.\n");
goto iospace_error_exit;
}
len = pci_resource_len(ha->pdev, 0);
ha->nx_pcibase = ioremap(pci_resource_start(ha->pdev, 0), len);
if (!ha->nx_pcibase) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x000e,
"Cannot remap pcibase MMIO, aborting.\n");
goto iospace_error_exit;
}
/* Mapping of IO base pointer */
if (IS_QLA8044(ha)) {
ha->iobase = ha->nx_pcibase;
} else if (IS_QLA82XX(ha)) {
ha->iobase = ha->nx_pcibase + 0xbc000 + (ha->pdev->devfn << 11);
}
if (!ql2xdbwr) {
ha->nxdb_wr_ptr = ioremap((pci_resource_start(ha->pdev, 4) +
(ha->pdev->devfn << 12)), 4);
if (!ha->nxdb_wr_ptr) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x000f,
"Cannot remap MMIO, aborting.\n");
goto iospace_error_exit;
}
/* Mapping of IO base pointer,
* door bell read and write pointer
*/
ha->nxdb_rd_ptr = ha->nx_pcibase + (512 * 1024) +
(ha->pdev->devfn * 8);
} else {
ha->nxdb_wr_ptr = (void __iomem *)(ha->pdev->devfn == 6 ?
QLA82XX_CAMRAM_DB1 :
QLA82XX_CAMRAM_DB2);
}
ha->max_req_queues = ha->max_rsp_queues = 1;
ha->msix_count = ha->max_rsp_queues + 1;
ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
"nx_pci_base=%p iobase=%p "
"max_req_queues=%d msix_count=%d.\n",
ha->nx_pcibase, ha->iobase,
ha->max_req_queues, ha->msix_count);
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
"nx_pci_base=%p iobase=%p "
"max_req_queues=%d msix_count=%d.\n",
ha->nx_pcibase, ha->iobase,
ha->max_req_queues, ha->msix_count);
return 0;
iospace_error_exit:
return -ENOMEM;
}
/* GS related functions */
/* Initialization related functions */
/**
* qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla82xx_pci_config(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int ret;
pci_set_master(ha->pdev);
ret = pci_set_mwi(ha->pdev);
ha->chip_revision = ha->pdev->revision;
ql_dbg(ql_dbg_init, vha, 0x0043,
"Chip revision:%d; pci_set_mwi() returned %d.\n",
ha->chip_revision, ret);
return 0;
}
/**
* qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qla82xx_reset_chip(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
ha->isp_ops->disable_intrs(ha);
return QLA_SUCCESS;
}
void qla82xx_config_rings(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
struct init_cb_81xx *icb;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
/* Setup ring parameters in initialization control block. */
icb = (struct init_cb_81xx *)ha->init_cb;
icb->request_q_outpointer = cpu_to_le16(0);
icb->response_q_inpointer = cpu_to_le16(0);
icb->request_q_length = cpu_to_le16(req->length);
icb->response_q_length = cpu_to_le16(rsp->length);
put_unaligned_le64(req->dma, &icb->request_q_address);
put_unaligned_le64(rsp->dma, &icb->response_q_address);
wrt_reg_dword(®->req_q_out[0], 0);
wrt_reg_dword(®->rsp_q_in[0], 0);
wrt_reg_dword(®->rsp_q_out[0], 0);
}
static int
qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
{
u64 *ptr64;
u32 i, flashaddr, size;
__le64 data;
size = (IMAGE_START - BOOTLD_START) / 8;
ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
flashaddr = BOOTLD_START;
for (i = 0; i < size; i++) {
data = cpu_to_le64(ptr64[i]);
if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
return -EIO;
flashaddr += 8;
}
flashaddr = FLASH_ADDR_START;
size = qla82xx_get_fw_size(ha) / 8;
ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
for (i = 0; i < size; i++) {
data = cpu_to_le64(ptr64[i]);
if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
return -EIO;
flashaddr += 8;
}
udelay(100);
/* Write a magic value to CAMRAM register
* at a specified offset to indicate
* that all data is written and
* ready for firmware to initialize.
*/
qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
read_lock(&ha->hw_lock);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
read_unlock(&ha->hw_lock);
return 0;
}
static int
qla82xx_set_product_offset(struct qla_hw_data *ha)
{
struct qla82xx_uri_table_desc *ptab_desc = NULL;
const uint8_t *unirom = ha->hablob->fw->data;
uint32_t i;
uint32_t entries;
uint32_t flags, file_chiprev, offset;
uint8_t chiprev = ha->chip_revision;
/* Hardcoding mn_present flag for P3P */
int mn_present = 0;
uint32_t flagbit;
ptab_desc = qla82xx_get_table_desc(unirom,
QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
if (!ptab_desc)
return -1;
entries = le32_to_cpu(ptab_desc->num_entries);
for (i = 0; i < entries; i++) {
offset = le32_to_cpu(ptab_desc->findex) +
(i * le32_to_cpu(ptab_desc->entry_size));
flags = le32_to_cpu(*((__le32 *)&unirom[offset] +
QLA82XX_URI_FLAGS_OFF));
file_chiprev = le32_to_cpu(*((__le32 *)&unirom[offset] +
QLA82XX_URI_CHIP_REV_OFF));
flagbit = mn_present ? 1 : 2;
if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
ha->file_prd_off = offset;
return 0;
}
}
return -1;
}
static int
qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
{
uint32_t val;
uint32_t min_size;
struct qla_hw_data *ha = vha->hw;
const struct firmware *fw = ha->hablob->fw;
ha->fw_type = fw_type;
if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
if (qla82xx_set_product_offset(ha))
return -EINVAL;
min_size = QLA82XX_URI_FW_MIN_SIZE;
} else {
val = get_unaligned_le32(&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
if (val != QLA82XX_BDINFO_MAGIC)
return -EINVAL;
min_size = QLA82XX_FW_MIN_SIZE;
}
if (fw->size < min_size)
return -EINVAL;
return 0;
}
static int
qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
{
u32 val = 0;
int retries = 60;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
do {
read_lock(&ha->hw_lock);
val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
read_unlock(&ha->hw_lock);
switch (val) {
case PHAN_INITIALIZE_COMPLETE:
case PHAN_INITIALIZE_ACK:
return QLA_SUCCESS;
case PHAN_INITIALIZE_FAILED:
break;
default:
break;
}
ql_log(ql_log_info, vha, 0x00a8,
"CRB_CMDPEG_STATE: 0x%x and retries:0x%x.\n",
val, retries);
msleep(500);
} while (--retries);
ql_log(ql_log_fatal, vha, 0x00a9,
"Cmd Peg initialization failed: 0x%x.\n", val);
val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
read_lock(&ha->hw_lock);
qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
read_unlock(&ha->hw_lock);
return QLA_FUNCTION_FAILED;
}
static int
qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
{
u32 val = 0;
int retries = 60;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
do {
read_lock(&ha->hw_lock);
val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
read_unlock(&ha->hw_lock);
switch (val) {
case PHAN_INITIALIZE_COMPLETE:
case PHAN_INITIALIZE_ACK:
return QLA_SUCCESS;
case PHAN_INITIALIZE_FAILED:
break;
default:
break;
}
ql_log(ql_log_info, vha, 0x00ab,
"CRB_RCVPEG_STATE: 0x%x and retries: 0x%x.\n",
val, retries);
msleep(500);
} while (--retries);
ql_log(ql_log_fatal, vha, 0x00ac,
"Rcv Peg initialization failed: 0x%x.\n", val);
read_lock(&ha->hw_lock);
qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
read_unlock(&ha->hw_lock);
return QLA_FUNCTION_FAILED;
}
/* ISR related functions */
static struct qla82xx_legacy_intr_set legacy_intr[] =
QLA82XX_LEGACY_INTR_CONFIG;
/*
* qla82xx_mbx_completion() - Process mailbox command completions.
* @ha: SCSI driver HA context
* @mb0: Mailbox0 register
*/
void
qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
{
uint16_t cnt;
__le16 __iomem *wptr;
struct qla_hw_data *ha = vha->hw;
struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
wptr = ®->mailbox_out[1];
/* Load return mailbox registers. */
ha->flags.mbox_int = 1;
ha->mailbox_out[0] = mb0;
for (cnt = 1; cnt < ha->mbx_count; cnt++) {
ha->mailbox_out[cnt] = rd_reg_word(wptr);
wptr++;
}
if (!ha->mcp)
ql_dbg(ql_dbg_async, vha, 0x5053,
"MBX pointer ERROR.\n");
}
/**
* qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
* @irq: interrupt number
* @dev_id: SCSI driver HA context
*
* Called by system whenever the host adapter generates an interrupt.
*
* Returns handled flag.
*/
irqreturn_t
qla82xx_intr_handler(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
int status = 0, status1 = 0;
unsigned long flags;
unsigned long iter;
uint32_t stat = 0;
uint16_t mb[8];
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
ql_log(ql_log_info, NULL, 0xb053,
"%s: NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
if (!ha->flags.msi_enabled) {
status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
if (!(status & ha->nx_legacy_intr.int_vec_bit))
return IRQ_NONE;
status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
return IRQ_NONE;
}
/* clear the interrupt */
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
/* read twice to ensure write is flushed */
qla82xx_rd_32(ha, ISR_INT_VECTOR);
qla82xx_rd_32(ha, ISR_INT_VECTOR);
reg = &ha->iobase->isp82;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
for (iter = 1; iter--; ) {
if (rd_reg_dword(®->host_int)) {
stat = rd_reg_dword(®->host_status);
switch (stat & 0xff) {
case 0x1:
case 0x2:
case 0x10:
case 0x11:
qla82xx_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
break;
case 0x12:
mb[0] = MSW(stat);
mb[1] = rd_reg_word(®->mailbox_out[1]);
mb[2] = rd_reg_word(®->mailbox_out[2]);
mb[3] = rd_reg_word(®->mailbox_out[3]);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x13:
qla24xx_process_response_queue(vha, rsp);
break;
default:
ql_dbg(ql_dbg_async, vha, 0x5054,
"Unrecognized interrupt type (%d).\n",
stat & 0xff);
break;
}
}
wrt_reg_dword(®->host_int, 0);
}
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (!ha->flags.msi_enabled)
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
return IRQ_HANDLED;
}
irqreturn_t
qla82xx_msix_default(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
int status = 0;
unsigned long flags;
uint32_t stat = 0;
uint32_t host_int = 0;
uint16_t mb[8];
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
printk(KERN_INFO
"%s(): NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
reg = &ha->iobase->isp82;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
do {
host_int = rd_reg_dword(®->host_int);
if (qla2x00_check_reg32_for_disconnect(vha, host_int))
break;
if (host_int) {
stat = rd_reg_dword(®->host_status);
switch (stat & 0xff) {
case 0x1:
case 0x2:
case 0x10:
case 0x11:
qla82xx_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
break;
case 0x12:
mb[0] = MSW(stat);
mb[1] = rd_reg_word(®->mailbox_out[1]);
mb[2] = rd_reg_word(®->mailbox_out[2]);
mb[3] = rd_reg_word(®->mailbox_out[3]);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x13:
qla24xx_process_response_queue(vha, rsp);
break;
default:
ql_dbg(ql_dbg_async, vha, 0x5041,
"Unrecognized interrupt type (%d).\n",
stat & 0xff);
break;
}
}
wrt_reg_dword(®->host_int, 0);
} while (0);
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return IRQ_HANDLED;
}
irqreturn_t
qla82xx_msix_rsp_q(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
unsigned long flags;
uint32_t host_int = 0;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
printk(KERN_INFO
"%s(): NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
reg = &ha->iobase->isp82;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
host_int = rd_reg_dword(®->host_int);
if (qla2x00_check_reg32_for_disconnect(vha, host_int))
goto out;
qla24xx_process_response_queue(vha, rsp);
wrt_reg_dword(®->host_int, 0);
out:
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return IRQ_HANDLED;
}
void
qla82xx_poll(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
uint32_t stat;
uint32_t host_int = 0;
uint16_t mb[8];
unsigned long flags;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
printk(KERN_INFO
"%s(): NULL response queue pointer.\n", __func__);
return;
}
ha = rsp->hw;
reg = &ha->iobase->isp82;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
host_int = rd_reg_dword(®->host_int);
if (qla2x00_check_reg32_for_disconnect(vha, host_int))
goto out;
if (host_int) {
stat = rd_reg_dword(®->host_status);
switch (stat & 0xff) {
case 0x1:
case 0x2:
case 0x10:
case 0x11:
qla82xx_mbx_completion(vha, MSW(stat));
break;
case 0x12:
mb[0] = MSW(stat);
mb[1] = rd_reg_word(®->mailbox_out[1]);
mb[2] = rd_reg_word(®->mailbox_out[2]);
mb[3] = rd_reg_word(®->mailbox_out[3]);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x13:
qla24xx_process_response_queue(vha, rsp);
break;
default:
ql_dbg(ql_dbg_p3p, vha, 0xb013,
"Unrecognized interrupt type (%d).\n",
stat * 0xff);
break;
}
wrt_reg_dword(®->host_int, 0);
}
out:
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
void
qla82xx_enable_intrs(struct qla_hw_data *ha)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
qla82xx_mbx_intr_enable(vha);
spin_lock_irq(&ha->hardware_lock);
if (IS_QLA8044(ha))
qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 0);
else
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
spin_unlock_irq(&ha->hardware_lock);
ha->interrupts_on = 1;
}
void
qla82xx_disable_intrs(struct qla_hw_data *ha)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
if (ha->interrupts_on)
qla82xx_mbx_intr_disable(vha);
spin_lock_irq(&ha->hardware_lock);
if (IS_QLA8044(ha))
qla8044_wr_reg(ha, LEG_INTR_MASK_OFFSET, 1);
else
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
spin_unlock_irq(&ha->hardware_lock);
ha->interrupts_on = 0;
}
void qla82xx_init_flags(struct qla_hw_data *ha)
{
struct qla82xx_legacy_intr_set *nx_legacy_intr;
/* ISP 8021 initializations */
rwlock_init(&ha->hw_lock);
ha->qdr_sn_window = -1;
ha->ddr_mn_window = -1;
ha->curr_window = 255;
ha->portnum = PCI_FUNC(ha->pdev->devfn);
nx_legacy_intr = &legacy_intr[ha->portnum];
ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
}
static inline void
qla82xx_set_idc_version(scsi_qla_host_t *vha)
{
int idc_ver;
uint32_t drv_active;
struct qla_hw_data *ha = vha->hw;
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
QLA82XX_IDC_VERSION);
ql_log(ql_log_info, vha, 0xb082,
"IDC version updated to %d\n", QLA82XX_IDC_VERSION);
} else {
idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
if (idc_ver != QLA82XX_IDC_VERSION)
ql_log(ql_log_info, vha, 0xb083,
"qla2xxx driver IDC version %d is not compatible "
"with IDC version %d of the other drivers\n",
QLA82XX_IDC_VERSION, idc_ver);
}
}
inline void
qla82xx_set_drv_active(scsi_qla_host_t *vha)
{
uint32_t drv_active;
struct qla_hw_data *ha = vha->hw;
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
/* If reset value is all FF's, initialize DRV_ACTIVE */
if (drv_active == 0xffffffff) {
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
QLA82XX_DRV_NOT_ACTIVE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
}
drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
}
inline void
qla82xx_clear_drv_active(struct qla_hw_data *ha)
{
uint32_t drv_active;
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
}
static inline int
qla82xx_need_reset(struct qla_hw_data *ha)
{
uint32_t drv_state;
int rval;
if (ha->flags.nic_core_reset_owner)
return 1;
else {
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
return rval;
}
}
static inline void
qla82xx_set_rst_ready(struct qla_hw_data *ha)
{
uint32_t drv_state;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
/* If reset value is all FF's, initialize DRV_STATE */
if (drv_state == 0xffffffff) {
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
}
drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
ql_dbg(ql_dbg_init, vha, 0x00bb,
"drv_state = 0x%08x.\n", drv_state);
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
}
static inline void
qla82xx_clear_rst_ready(struct qla_hw_data *ha)
{
uint32_t drv_state;
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
}
static inline void
qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
{
uint32_t qsnt_state;
qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
}
void
qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t qsnt_state;
qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
}
static int
qla82xx_load_fw(scsi_qla_host_t *vha)
{
int rst;
struct fw_blob *blob;
struct qla_hw_data *ha = vha->hw;
if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0x009f,
"Error during CRB initialization.\n");
return QLA_FUNCTION_FAILED;
}
udelay(500);
/* Bring QM and CAMRAM out of reset */
rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
rst &= ~((1 << 28) | (1 << 24));
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
/*
* FW Load priority:
* 1) Operational firmware residing in flash.
* 2) Firmware via request-firmware interface (.bin file).
*/
if (ql2xfwloadbin == 2)
goto try_blob_fw;
ql_log(ql_log_info, vha, 0x00a0,
"Attempting to load firmware from flash.\n");
if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
ql_log(ql_log_info, vha, 0x00a1,
"Firmware loaded successfully from flash.\n");
return QLA_SUCCESS;
} else {
ql_log(ql_log_warn, vha, 0x0108,
"Firmware load from flash failed.\n");
}
try_blob_fw:
ql_log(ql_log_info, vha, 0x00a2,
"Attempting to load firmware from blob.\n");
/* Load firmware blob. */
blob = ha->hablob = qla2x00_request_firmware(vha);
if (!blob) {
ql_log(ql_log_fatal, vha, 0x00a3,
"Firmware image not present.\n");
goto fw_load_failed;
}
/* Validating firmware blob */
if (qla82xx_validate_firmware_blob(vha,
QLA82XX_FLASH_ROMIMAGE)) {
/* Fallback to URI format */
if (qla82xx_validate_firmware_blob(vha,
QLA82XX_UNIFIED_ROMIMAGE)) {
ql_log(ql_log_fatal, vha, 0x00a4,
"No valid firmware image found.\n");
return QLA_FUNCTION_FAILED;
}
}
if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
ql_log(ql_log_info, vha, 0x00a5,
"Firmware loaded successfully from binary blob.\n");
return QLA_SUCCESS;
}
ql_log(ql_log_fatal, vha, 0x00a6,
"Firmware load failed for binary blob.\n");
blob->fw = NULL;
blob = NULL;
fw_load_failed:
return QLA_FUNCTION_FAILED;
}
int
qla82xx_start_firmware(scsi_qla_host_t *vha)
{
uint16_t lnk;
struct qla_hw_data *ha = vha->hw;
/* scrub dma mask expansion register */
qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
/* Put both the PEG CMD and RCV PEG to default state
* of 0 before resetting the hardware
*/
qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
/* Overwrite stale initialization register values */
qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0x00a7,
"Error trying to start fw.\n");
return QLA_FUNCTION_FAILED;
}
/* Handshake with the card before we register the devices. */
if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0x00aa,
"Error during card handshake.\n");
return QLA_FUNCTION_FAILED;
}
/* Negotiated Link width */
pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
ha->link_width = (lnk >> 4) & 0x3f;
/* Synchronize with Receive peg */
return qla82xx_check_rcvpeg_state(ha);
}
static __le32 *
qla82xx_read_flash_data(scsi_qla_host_t *vha, __le32 *dwptr, uint32_t faddr,
uint32_t length)
{
uint32_t i;
uint32_t val;
struct qla_hw_data *ha = vha->hw;
/* Dword reads to flash. */
for (i = 0; i < length/4; i++, faddr += 4) {
if (qla82xx_rom_fast_read(ha, faddr, &val)) {
ql_log(ql_log_warn, vha, 0x0106,
"Do ROM fast read failed.\n");
goto done_read;
}
dwptr[i] = cpu_to_le32(val);
}
done_read:
return dwptr;
}
static int
qla82xx_unprotect_flash(struct qla_hw_data *ha)
{
int ret;
uint32_t val;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
ret = ql82xx_rom_lock_d(ha);
if (ret < 0) {
ql_log(ql_log_warn, vha, 0xb014,
"ROM Lock failed.\n");
return ret;
}
ret = qla82xx_read_status_reg(ha, &val);
if (ret < 0)
goto done_unprotect;
val &= ~(BLOCK_PROTECT_BITS << 2);
ret = qla82xx_write_status_reg(ha, val);
if (ret < 0) {
val |= (BLOCK_PROTECT_BITS << 2);
qla82xx_write_status_reg(ha, val);
}
if (qla82xx_write_disable_flash(ha) != 0)
ql_log(ql_log_warn, vha, 0xb015,
"Write disable failed.\n");
done_unprotect:
qla82xx_rom_unlock(ha);
return ret;
}
static int
qla82xx_protect_flash(struct qla_hw_data *ha)
{
int ret;
uint32_t val;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
ret = ql82xx_rom_lock_d(ha);
if (ret < 0) {
ql_log(ql_log_warn, vha, 0xb016,
"ROM Lock failed.\n");
return ret;
}
ret = qla82xx_read_status_reg(ha, &val);
if (ret < 0)
goto done_protect;
val |= (BLOCK_PROTECT_BITS << 2);
/* LOCK all sectors */
ret = qla82xx_write_status_reg(ha, val);
if (ret < 0)
ql_log(ql_log_warn, vha, 0xb017,
"Write status register failed.\n");
if (qla82xx_write_disable_flash(ha) != 0)
ql_log(ql_log_warn, vha, 0xb018,
"Write disable failed.\n");
done_protect:
qla82xx_rom_unlock(ha);
return ret;
}
static int
qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
{
int ret = 0;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
ret = ql82xx_rom_lock_d(ha);
if (ret < 0) {
ql_log(ql_log_warn, vha, 0xb019,
"ROM Lock failed.\n");
return ret;
}
qla82xx_flash_set_write_enable(ha);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
if (qla82xx_wait_rom_done(ha)) {
ql_log(ql_log_warn, vha, 0xb01a,
"Error waiting for rom done.\n");
ret = -1;
goto done;
}
ret = qla82xx_flash_wait_write_finish(ha);
done:
qla82xx_rom_unlock(ha);
return ret;
}
/*
* Address and length are byte address
*/
void *
qla82xx_read_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
scsi_block_requests(vha->host);
qla82xx_read_flash_data(vha, buf, offset, length);
scsi_unblock_requests(vha->host);
return buf;
}
static int
qla82xx_write_flash_data(struct scsi_qla_host *vha, __le32 *dwptr,
uint32_t faddr, uint32_t dwords)
{
int ret;
uint32_t liter;
uint32_t rest_addr;
dma_addr_t optrom_dma;
void *optrom = NULL;
int page_mode = 0;
struct qla_hw_data *ha = vha->hw;
ret = -1;
/* Prepare burst-capable write on supported ISPs. */
if (page_mode && !(faddr & 0xfff) &&
dwords > OPTROM_BURST_DWORDS) {
optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
&optrom_dma, GFP_KERNEL);
if (!optrom) {
ql_log(ql_log_warn, vha, 0xb01b,
"Unable to allocate memory "
"for optrom burst write (%x KB).\n",
OPTROM_BURST_SIZE / 1024);
}
}
rest_addr = ha->fdt_block_size - 1;
ret = qla82xx_unprotect_flash(ha);
if (ret) {
ql_log(ql_log_warn, vha, 0xb01c,
"Unable to unprotect flash for update.\n");
goto write_done;
}
for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
/* Are we at the beginning of a sector? */
if ((faddr & rest_addr) == 0) {
ret = qla82xx_erase_sector(ha, faddr);
if (ret) {
ql_log(ql_log_warn, vha, 0xb01d,
"Unable to erase sector: address=%x.\n",
faddr);
break;
}
}
/* Go with burst-write. */
if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
/* Copy data to DMA'ble buffer. */
memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
ret = qla2x00_load_ram(vha, optrom_dma,
(ha->flash_data_off | faddr),
OPTROM_BURST_DWORDS);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xb01e,
"Unable to burst-write optrom segment "
"(%x/%x/%llx).\n", ret,
(ha->flash_data_off | faddr),
(unsigned long long)optrom_dma);
ql_log(ql_log_warn, vha, 0xb01f,
"Reverting to slow-write.\n");
dma_free_coherent(&ha->pdev->dev,
OPTROM_BURST_SIZE, optrom, optrom_dma);
optrom = NULL;
} else {
liter += OPTROM_BURST_DWORDS - 1;
faddr += OPTROM_BURST_DWORDS - 1;
dwptr += OPTROM_BURST_DWORDS - 1;
continue;
}
}
ret = qla82xx_write_flash_dword(ha, faddr,
le32_to_cpu(*dwptr));
if (ret) {
ql_dbg(ql_dbg_p3p, vha, 0xb020,
"Unable to program flash address=%x data=%x.\n",
faddr, *dwptr);
break;
}
}
ret = qla82xx_protect_flash(ha);
if (ret)
ql_log(ql_log_warn, vha, 0xb021,
"Unable to protect flash after update.\n");
write_done:
if (optrom)
dma_free_coherent(&ha->pdev->dev,
OPTROM_BURST_SIZE, optrom, optrom_dma);
return ret;
}
int
qla82xx_write_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
int rval;
/* Suspend HBA. */
scsi_block_requests(vha->host);
rval = qla82xx_write_flash_data(vha, buf, offset, length >> 2);
scsi_unblock_requests(vha->host);
/* Convert return ISP82xx to generic */
if (rval)
rval = QLA_FUNCTION_FAILED;
else
rval = QLA_SUCCESS;
return rval;
}
void
qla82xx_start_iocbs(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
uint32_t dbval;
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
dbval = 0x04 | (ha->portnum << 5);
dbval = dbval | (req->id << 8) | (req->ring_index << 16);
if (ql2xdbwr)
qla82xx_wr_32(ha, (unsigned long)ha->nxdb_wr_ptr, dbval);
else {
wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
wmb();
while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) {
wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
wmb();
}
}
}
static void
qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
uint32_t lock_owner = 0;
if (qla82xx_rom_lock(ha)) {
lock_owner = qla82xx_rd_32(ha, QLA82XX_ROM_LOCK_ID);
/* Someone else is holding the lock. */
ql_log(ql_log_info, vha, 0xb022,
"Resetting rom_lock, Lock Owner %u.\n", lock_owner);
}
/*
* Either we got the lock, or someone
* else died while holding it.
* In either case, unlock.
*/
qla82xx_rom_unlock(ha);
}
/*
* qla82xx_device_bootstrap
* Initialize device, set DEV_READY, start fw
*
* Note:
* IDC lock must be held upon entry
*
* Return:
* Success : 0
* Failed : 1
*/
static int
qla82xx_device_bootstrap(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
int i;
uint32_t old_count, count;
struct qla_hw_data *ha = vha->hw;
int need_reset = 0;
need_reset = qla82xx_need_reset(ha);
if (need_reset) {
/* We are trying to perform a recovery here. */
if (ha->flags.isp82xx_fw_hung)
qla82xx_rom_lock_recovery(ha);
} else {
old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
for (i = 0; i < 10; i++) {
msleep(200);
count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
if (count != old_count) {
rval = QLA_SUCCESS;
goto dev_ready;
}
}
qla82xx_rom_lock_recovery(ha);
}
/* set to DEV_INITIALIZING */
ql_log(ql_log_info, vha, 0x009e,
"HW State: INITIALIZING.\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
qla82xx_idc_unlock(ha);
rval = qla82xx_start_firmware(vha);
qla82xx_idc_lock(ha);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0x00ad,
"HW State: FAILED.\n");
qla82xx_clear_drv_active(ha);
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
return rval;
}
dev_ready:
ql_log(ql_log_info, vha, 0x00ae,
"HW State: READY.\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
return QLA_SUCCESS;
}
/*
* qla82xx_need_qsnt_handler
* Code to start quiescence sequence
*
* Note:
* IDC lock must be held upon entry
*
* Return: void
*/
static void
qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t dev_state, drv_state, drv_active;
unsigned long reset_timeout;
if (vha->flags.online) {
/*Block any further I/O and wait for pending cmnds to complete*/
qla2x00_quiesce_io(vha);
}
/* Set the quiescence ready bit */
qla82xx_set_qsnt_ready(ha);
/*wait for 30 secs for other functions to ack */
reset_timeout = jiffies + (30 * HZ);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
/* Its 2 that is written when qsnt is acked, moving one bit */
drv_active = drv_active << 0x01;
while (drv_state != drv_active) {
if (time_after_eq(jiffies, reset_timeout)) {
/* quiescence timeout, other functions didn't ack
* changing the state to DEV_READY
*/
ql_log(ql_log_info, vha, 0xb023,
"%s : QUIESCENT TIMEOUT DRV_ACTIVE:%d "
"DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
drv_active, drv_state);
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA8XXX_DEV_READY);
ql_log(ql_log_info, vha, 0xb025,
"HW State: DEV_READY.\n");
qla82xx_idc_unlock(ha);
qla2x00_perform_loop_resync(vha);
qla82xx_idc_lock(ha);
qla82xx_clear_qsnt_ready(vha);
return;
}
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_active = drv_active << 0x01;
}
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
/* everyone acked so set the state to DEV_QUIESCENCE */
if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
ql_log(ql_log_info, vha, 0xb026,
"HW State: DEV_QUIESCENT.\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
}
}
/*
* qla82xx_wait_for_state_change
* Wait for device state to change from given current state
*
* Note:
* IDC lock must not be held upon entry
*
* Return:
* Changed device state.
*/
uint32_t
qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
{
struct qla_hw_data *ha = vha->hw;
uint32_t dev_state;
do {
msleep(1000);
qla82xx_idc_lock(ha);
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
qla82xx_idc_unlock(ha);
} while (dev_state == curr_state);
return dev_state;
}
void
qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
/* Disable the board */
ql_log(ql_log_fatal, vha, 0x00b8,
"Disabling the board.\n");
if (IS_QLA82XX(ha)) {
qla82xx_clear_drv_active(ha);
qla82xx_idc_unlock(ha);
} else if (IS_QLA8044(ha)) {
qla8044_clear_drv_active(ha);
qla8044_idc_unlock(ha);
}
/* Set DEV_FAILED flag to disable timer */
vha->device_flags |= DFLG_DEV_FAILED;
qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
qla2x00_mark_all_devices_lost(vha);
vha->flags.online = 0;
vha->flags.init_done = 0;
}
/*
* qla82xx_need_reset_handler
* Code to start reset sequence
*
* Note:
* IDC lock must be held upon entry
*
* Return:
* Success : 0
* Failed : 1
*/
static void
qla82xx_need_reset_handler(scsi_qla_host_t *vha)
{
uint32_t dev_state, drv_state, drv_active;
uint32_t active_mask = 0;
unsigned long reset_timeout;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
if (vha->flags.online) {
qla82xx_idc_unlock(ha);
qla2x00_abort_isp_cleanup(vha);
ha->isp_ops->get_flash_version(vha, req->ring);
ha->isp_ops->nvram_config(vha);
qla82xx_idc_lock(ha);
}
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
if (!ha->flags.nic_core_reset_owner) {
ql_dbg(ql_dbg_p3p, vha, 0xb028,
"reset_acknowledged by 0x%x\n", ha->portnum);
qla82xx_set_rst_ready(ha);
} else {
active_mask = ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
drv_active &= active_mask;
ql_dbg(ql_dbg_p3p, vha, 0xb029,
"active_mask: 0x%08x\n", active_mask);
}
/* wait for 10 seconds for reset ack from all functions */
reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
ql_dbg(ql_dbg_p3p, vha, 0xb02a,
"drv_state: 0x%08x, drv_active: 0x%08x, "
"dev_state: 0x%08x, active_mask: 0x%08x\n",
drv_state, drv_active, dev_state, active_mask);
while (drv_state != drv_active &&
dev_state != QLA8XXX_DEV_INITIALIZING) {
if (time_after_eq(jiffies, reset_timeout)) {
ql_log(ql_log_warn, vha, 0x00b5,
"Reset timeout.\n");
break;
}
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
if (ha->flags.nic_core_reset_owner)
drv_active &= active_mask;
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
}
ql_dbg(ql_dbg_p3p, vha, 0xb02b,
"drv_state: 0x%08x, drv_active: 0x%08x, "
"dev_state: 0x%08x, active_mask: 0x%08x\n",
drv_state, drv_active, dev_state, active_mask);
ql_log(ql_log_info, vha, 0x00b6,
"Device state is 0x%x = %s.\n",
dev_state, qdev_state(dev_state));
/* Force to DEV_COLD unless someone else is starting a reset */
if (dev_state != QLA8XXX_DEV_INITIALIZING &&
dev_state != QLA8XXX_DEV_COLD) {
ql_log(ql_log_info, vha, 0x00b7,
"HW State: COLD/RE-INIT.\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
qla82xx_set_rst_ready(ha);
if (ql2xmdenable) {
if (qla82xx_md_collect(vha))
ql_log(ql_log_warn, vha, 0xb02c,
"Minidump not collected.\n");
} else
ql_log(ql_log_warn, vha, 0xb04f,
"Minidump disabled.\n");
}
}
int
qla82xx_check_md_needed(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint16_t fw_major_version, fw_minor_version, fw_subminor_version;
int rval = QLA_SUCCESS;
fw_major_version = ha->fw_major_version;
fw_minor_version = ha->fw_minor_version;
fw_subminor_version = ha->fw_subminor_version;
rval = qla2x00_get_fw_version(vha);
if (rval != QLA_SUCCESS)
return rval;
if (ql2xmdenable) {
if (!ha->fw_dumped) {
if ((fw_major_version != ha->fw_major_version ||
fw_minor_version != ha->fw_minor_version ||
fw_subminor_version != ha->fw_subminor_version) ||
(ha->prev_minidump_failed)) {
ql_dbg(ql_dbg_p3p, vha, 0xb02d,
"Firmware version differs Previous version: %d:%d:%d - New version: %d:%d:%d, prev_minidump_failed: %d.\n",
fw_major_version, fw_minor_version,
fw_subminor_version,
ha->fw_major_version,
ha->fw_minor_version,
ha->fw_subminor_version,
ha->prev_minidump_failed);
/* Release MiniDump resources */
qla82xx_md_free(vha);
/* ALlocate MiniDump resources */
qla82xx_md_prep(vha);
}
} else
ql_log(ql_log_info, vha, 0xb02e,
"Firmware dump available to retrieve\n");
}
return rval;
}
static int
qla82xx_check_fw_alive(scsi_qla_host_t *vha)
{
uint32_t fw_heartbeat_counter;
int status = 0;
fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
QLA82XX_PEG_ALIVE_COUNTER);
/* all 0xff, assume AER/EEH in progress, ignore */
if (fw_heartbeat_counter == 0xffffffff) {
ql_dbg(ql_dbg_timer, vha, 0x6003,
"FW heartbeat counter is 0xffffffff, "
"returning status=%d.\n", status);
return status;
}
if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
vha->seconds_since_last_heartbeat++;
/* FW not alive after 2 seconds */
if (vha->seconds_since_last_heartbeat == 2) {
vha->seconds_since_last_heartbeat = 0;
status = 1;
}
} else
vha->seconds_since_last_heartbeat = 0;
vha->fw_heartbeat_counter = fw_heartbeat_counter;
if (status)
ql_dbg(ql_dbg_timer, vha, 0x6004,
"Returning status=%d.\n", status);
return status;
}
/*
* qla82xx_device_state_handler
* Main state handler
*
* Note:
* IDC lock must be held upon entry
*
* Return:
* Success : 0
* Failed : 1
*/
int
qla82xx_device_state_handler(scsi_qla_host_t *vha)
{
uint32_t dev_state;
uint32_t old_dev_state;
int rval = QLA_SUCCESS;
unsigned long dev_init_timeout;
struct qla_hw_data *ha = vha->hw;
int loopcount = 0;
qla82xx_idc_lock(ha);
if (!vha->flags.init_done) {
qla82xx_set_drv_active(vha);
qla82xx_set_idc_version(vha);
}
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
old_dev_state = dev_state;
ql_log(ql_log_info, vha, 0x009b,
"Device state is 0x%x = %s.\n",
dev_state, qdev_state(dev_state));
/* wait for 30 seconds for device to go ready */
dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
while (1) {
if (time_after_eq(jiffies, dev_init_timeout)) {
ql_log(ql_log_fatal, vha, 0x009c,
"Device init failed.\n");
rval = QLA_FUNCTION_FAILED;
break;
}
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
if (old_dev_state != dev_state) {
loopcount = 0;
old_dev_state = dev_state;
}
if (loopcount < 5) {
ql_log(ql_log_info, vha, 0x009d,
"Device state is 0x%x = %s.\n",
dev_state, qdev_state(dev_state));
}
switch (dev_state) {
case QLA8XXX_DEV_READY:
ha->flags.nic_core_reset_owner = 0;
goto rel_lock;
case QLA8XXX_DEV_COLD:
rval = qla82xx_device_bootstrap(vha);
break;
case QLA8XXX_DEV_INITIALIZING:
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
break;
case QLA8XXX_DEV_NEED_RESET:
if (!ql2xdontresethba)
qla82xx_need_reset_handler(vha);
else {
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
}
dev_init_timeout = jiffies +
(ha->fcoe_dev_init_timeout * HZ);
break;
case QLA8XXX_DEV_NEED_QUIESCENT:
qla82xx_need_qsnt_handler(vha);
/* Reset timeout value after quiescence handler */
dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout
* HZ);
break;
case QLA8XXX_DEV_QUIESCENT:
/* Owner will exit and other will wait for the state
* to get changed
*/
if (ha->flags.quiesce_owner)
goto rel_lock;
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
/* Reset timeout value after quiescence handler */
dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout
* HZ);
break;
case QLA8XXX_DEV_FAILED:
qla8xxx_dev_failed_handler(vha);
rval = QLA_FUNCTION_FAILED;
goto exit;
default:
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
}
loopcount++;
}
rel_lock:
qla82xx_idc_unlock(ha);
exit:
return rval;
}
static int qla82xx_check_temp(scsi_qla_host_t *vha)
{
uint32_t temp, temp_state, temp_val;
struct qla_hw_data *ha = vha->hw;
temp = qla82xx_rd_32(ha, CRB_TEMP_STATE);
temp_state = qla82xx_get_temp_state(temp);
temp_val = qla82xx_get_temp_val(temp);
if (temp_state == QLA82XX_TEMP_PANIC) {
ql_log(ql_log_warn, vha, 0x600e,
"Device temperature %d degrees C exceeds "
" maximum allowed. Hardware has been shut down.\n",
temp_val);
return 1;
} else if (temp_state == QLA82XX_TEMP_WARN) {
ql_log(ql_log_warn, vha, 0x600f,
"Device temperature %d degrees C exceeds "
"operating range. Immediate action needed.\n",
temp_val);
}
return 0;
}
int qla82xx_read_temperature(scsi_qla_host_t *vha)
{
uint32_t temp;
temp = qla82xx_rd_32(vha->hw, CRB_TEMP_STATE);
return qla82xx_get_temp_val(temp);
}
void qla82xx_clear_pending_mbx(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (ha->flags.mbox_busy) {
ha->flags.mbox_int = 1;
ha->flags.mbox_busy = 0;
ql_log(ql_log_warn, vha, 0x6010,
"Doing premature completion of mbx command.\n");
if (test_and_clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags))
complete(&ha->mbx_intr_comp);
}
}
void qla82xx_watchdog(scsi_qla_host_t *vha)
{
uint32_t dev_state, halt_status;
struct qla_hw_data *ha = vha->hw;
/* don't poll if reset is going on */
if (!ha->flags.nic_core_reset_hdlr_active) {
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
if (qla82xx_check_temp(vha)) {
set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
ha->flags.isp82xx_fw_hung = 1;
qla82xx_clear_pending_mbx(vha);
} else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
ql_log(ql_log_warn, vha, 0x6001,
"Adapter reset needed.\n");
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
} else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
ql_log(ql_log_warn, vha, 0x6002,
"Quiescent needed.\n");
set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
} else if (dev_state == QLA8XXX_DEV_FAILED &&
!test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
vha->flags.online == 1) {
ql_log(ql_log_warn, vha, 0xb055,
"Adapter state is failed. Offlining.\n");
set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
ha->flags.isp82xx_fw_hung = 1;
qla82xx_clear_pending_mbx(vha);
} else {
if (qla82xx_check_fw_alive(vha)) {
ql_dbg(ql_dbg_timer, vha, 0x6011,
"disabling pause transmit on port 0 & 1.\n");
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
CRB_NIU_XG_PAUSE_CTL_P0|CRB_NIU_XG_PAUSE_CTL_P1);
halt_status = qla82xx_rd_32(ha,
QLA82XX_PEG_HALT_STATUS1);
ql_log(ql_log_info, vha, 0x6005,
"dumping hw/fw registers:.\n "
" PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,.\n "
" PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,.\n "
" PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,.\n "
" PEG_NET_4_PC: 0x%x.\n", halt_status,
qla82xx_rd_32(ha, QLA82XX_PEG_HALT_STATUS2),
qla82xx_rd_32(ha,
QLA82XX_CRB_PEG_NET_0 + 0x3c),
qla82xx_rd_32(ha,
QLA82XX_CRB_PEG_NET_1 + 0x3c),
qla82xx_rd_32(ha,
QLA82XX_CRB_PEG_NET_2 + 0x3c),
qla82xx_rd_32(ha,
QLA82XX_CRB_PEG_NET_3 + 0x3c),
qla82xx_rd_32(ha,
QLA82XX_CRB_PEG_NET_4 + 0x3c));
if (((halt_status & 0x1fffff00) >> 8) == 0x67)
ql_log(ql_log_warn, vha, 0xb052,
"Firmware aborted with "
"error code 0x00006700. Device is "
"being reset.\n");
if (halt_status & HALT_STATUS_UNRECOVERABLE) {
set_bit(ISP_UNRECOVERABLE,
&vha->dpc_flags);
} else {
ql_log(ql_log_info, vha, 0x6006,
"Detect abort needed.\n");
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
}
ha->flags.isp82xx_fw_hung = 1;
ql_log(ql_log_warn, vha, 0x6007, "Firmware hung.\n");
qla82xx_clear_pending_mbx(vha);
}
}
}
}
int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
{
int rval = -1;
struct qla_hw_data *ha = vha->hw;
if (IS_QLA82XX(ha))
rval = qla82xx_device_state_handler(vha);
else if (IS_QLA8044(ha)) {
qla8044_idc_lock(ha);
/* Decide the reset ownership */
qla83xx_reset_ownership(vha);
qla8044_idc_unlock(ha);
rval = qla8044_device_state_handler(vha);
}
return rval;
}
void
qla82xx_set_reset_owner(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t dev_state = 0;
if (IS_QLA82XX(ha))
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
else if (IS_QLA8044(ha))
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
if (dev_state == QLA8XXX_DEV_READY) {
ql_log(ql_log_info, vha, 0xb02f,
"HW State: NEED RESET\n");
if (IS_QLA82XX(ha)) {
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA8XXX_DEV_NEED_RESET);
ha->flags.nic_core_reset_owner = 1;
ql_dbg(ql_dbg_p3p, vha, 0xb030,
"reset_owner is 0x%x\n", ha->portnum);
} else if (IS_QLA8044(ha))
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_NEED_RESET);
} else
ql_log(ql_log_info, vha, 0xb031,
"Device state is 0x%x = %s.\n",
dev_state, qdev_state(dev_state));
}
/*
* qla82xx_abort_isp
* Resets ISP and aborts all outstanding commands.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla82xx_abort_isp(scsi_qla_host_t *vha)
{
int rval = -1;
struct qla_hw_data *ha = vha->hw;
if (vha->device_flags & DFLG_DEV_FAILED) {
ql_log(ql_log_warn, vha, 0x8024,
"Device in failed state, exiting.\n");
return QLA_SUCCESS;
}
ha->flags.nic_core_reset_hdlr_active = 1;
qla82xx_idc_lock(ha);
qla82xx_set_reset_owner(vha);
qla82xx_idc_unlock(ha);
if (IS_QLA82XX(ha))
rval = qla82xx_device_state_handler(vha);
else if (IS_QLA8044(ha)) {
qla8044_idc_lock(ha);
/* Decide the reset ownership */
qla83xx_reset_ownership(vha);
qla8044_idc_unlock(ha);
rval = qla8044_device_state_handler(vha);
}
qla82xx_idc_lock(ha);
qla82xx_clear_rst_ready(ha);
qla82xx_idc_unlock(ha);
if (rval == QLA_SUCCESS) {
ha->flags.isp82xx_fw_hung = 0;
ha->flags.nic_core_reset_hdlr_active = 0;
qla82xx_restart_isp(vha);
}
if (rval) {
vha->flags.online = 1;
if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
if (ha->isp_abort_cnt == 0) {
ql_log(ql_log_warn, vha, 0x8027,
"ISP error recover failed - board "
"disabled.\n");
/*
* The next call disables the board
* completely.
*/
ha->isp_ops->reset_adapter(vha);
vha->flags.online = 0;
clear_bit(ISP_ABORT_RETRY,
&vha->dpc_flags);
rval = QLA_SUCCESS;
} else { /* schedule another ISP abort */
ha->isp_abort_cnt--;
ql_log(ql_log_warn, vha, 0x8036,
"ISP abort - retry remaining %d.\n",
ha->isp_abort_cnt);
rval = QLA_FUNCTION_FAILED;
}
} else {
ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
ql_dbg(ql_dbg_taskm, vha, 0x8029,
"ISP error recovery - retrying (%d) more times.\n",
ha->isp_abort_cnt);
set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
rval = QLA_FUNCTION_FAILED;
}
}
return rval;
}
/*
* qla82xx_fcoe_ctx_reset
* Perform a quick reset and aborts all outstanding commands.
* This will only perform an FCoE context reset and avoids a full blown
* chip reset.
*
* Input:
* ha = adapter block pointer.
* is_reset_path = flag for identifying the reset path.
*
* Returns:
* 0 = success
*/
int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
{
int rval = QLA_FUNCTION_FAILED;
if (vha->flags.online) {
/* Abort all outstanding commands, so as to be requeued later */
qla2x00_abort_isp_cleanup(vha);
}
/* Stop currently executing firmware.
* This will destroy existing FCoE context at the F/W end.
*/
qla2x00_try_to_stop_firmware(vha);
/* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
rval = qla82xx_restart_isp(vha);
return rval;
}
/*
* qla2x00_wait_for_fcoe_ctx_reset
* Wait till the FCoE context is reset.
*
* Note:
* Does context switching here.
* Release SPIN_LOCK (if any) before calling this routine.
*
* Return:
* Success (fcoe_ctx reset is done) : 0
* Failed (fcoe_ctx reset not completed within max loop timout ) : 1
*/
int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
{
int status = QLA_FUNCTION_FAILED;
unsigned long wait_reset;
wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
&& time_before(jiffies, wait_reset)) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(HZ);
if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
status = QLA_SUCCESS;
break;
}
}
ql_dbg(ql_dbg_p3p, vha, 0xb027,
"%s: status=%d.\n", __func__, status);
return status;
}
void
qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
{
int i, fw_state = 0;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
/* Check if 82XX firmware is alive or not
* We may have arrived here from NEED_RESET
* detection only
*/
if (!ha->flags.isp82xx_fw_hung) {
for (i = 0; i < 2; i++) {
msleep(1000);
if (IS_QLA82XX(ha))
fw_state = qla82xx_check_fw_alive(vha);
else if (IS_QLA8044(ha))
fw_state = qla8044_check_fw_alive(vha);
if (fw_state) {
ha->flags.isp82xx_fw_hung = 1;
qla82xx_clear_pending_mbx(vha);
break;
}
}
}
ql_dbg(ql_dbg_init, vha, 0x00b0,
"Entered %s fw_hung=%d.\n",
__func__, ha->flags.isp82xx_fw_hung);
/* Abort all commands gracefully if fw NOT hung */
if (!ha->flags.isp82xx_fw_hung) {
int cnt, que;
srb_t *sp;
struct req_que *req;
spin_lock_irqsave(&ha->hardware_lock, flags);
for (que = 0; que < ha->max_req_queues; que++) {
req = ha->req_q_map[que];
if (!req)
continue;
for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
sp = req->outstanding_cmds[cnt];
if (sp) {
if ((!sp->u.scmd.crc_ctx ||
(sp->flags &
SRB_FCP_CMND_DMA_VALID)) &&
!ha->flags.isp82xx_fw_hung) {
spin_unlock_irqrestore(
&ha->hardware_lock, flags);
if (ha->isp_ops->abort_command(sp)) {
ql_log(ql_log_info, vha,
0x00b1,
"mbx abort failed.\n");
} else {
ql_log(ql_log_info, vha,
0x00b2,
"mbx abort success.\n");
}
spin_lock_irqsave(&ha->hardware_lock, flags);
}
}
}
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* Wait for pending cmds (physical and virtual) to complete */
if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
WAIT_HOST) == QLA_SUCCESS) {
ql_dbg(ql_dbg_init, vha, 0x00b3,
"Done wait for "
"pending commands.\n");
} else {
WARN_ON_ONCE(true);
}
}
}
/* Minidump related functions */
static int
qla82xx_minidump_process_control(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
struct qla82xx_md_entry_crb *crb_entry;
uint32_t read_value, opcode, poll_time;
uint32_t addr, index, crb_addr;
unsigned long wtime;
struct qla82xx_md_template_hdr *tmplt_hdr;
uint32_t rval = QLA_SUCCESS;
int i;
tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
crb_entry = (struct qla82xx_md_entry_crb *)entry_hdr;
crb_addr = crb_entry->addr;
for (i = 0; i < crb_entry->op_count; i++) {
opcode = crb_entry->crb_ctrl.opcode;
if (opcode & QLA82XX_DBG_OPCODE_WR) {
qla82xx_md_rw_32(ha, crb_addr,
crb_entry->value_1, 1);
opcode &= ~QLA82XX_DBG_OPCODE_WR;
}
if (opcode & QLA82XX_DBG_OPCODE_RW) {
read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
opcode &= ~QLA82XX_DBG_OPCODE_RW;
}
if (opcode & QLA82XX_DBG_OPCODE_AND) {
read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
read_value &= crb_entry->value_2;
opcode &= ~QLA82XX_DBG_OPCODE_AND;
if (opcode & QLA82XX_DBG_OPCODE_OR) {
read_value |= crb_entry->value_3;
opcode &= ~QLA82XX_DBG_OPCODE_OR;
}
qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
}
if (opcode & QLA82XX_DBG_OPCODE_OR) {
read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
read_value |= crb_entry->value_3;
qla82xx_md_rw_32(ha, crb_addr, read_value, 1);
opcode &= ~QLA82XX_DBG_OPCODE_OR;
}
if (opcode & QLA82XX_DBG_OPCODE_POLL) {
poll_time = crb_entry->crb_strd.poll_timeout;
wtime = jiffies + poll_time;
read_value = qla82xx_md_rw_32(ha, crb_addr, 0, 0);
do {
if ((read_value & crb_entry->value_2)
== crb_entry->value_1)
break;
else if (time_after_eq(jiffies, wtime)) {
/* capturing dump failed */
rval = QLA_FUNCTION_FAILED;
break;
} else
read_value = qla82xx_md_rw_32(ha,
crb_addr, 0, 0);
} while (1);
opcode &= ~QLA82XX_DBG_OPCODE_POLL;
}
if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
if (crb_entry->crb_strd.state_index_a) {
index = crb_entry->crb_strd.state_index_a;
addr = tmplt_hdr->saved_state_array[index];
} else
addr = crb_addr;
read_value = qla82xx_md_rw_32(ha, addr, 0, 0);
index = crb_entry->crb_ctrl.state_index_v;
tmplt_hdr->saved_state_array[index] = read_value;
opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
}
if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
if (crb_entry->crb_strd.state_index_a) {
index = crb_entry->crb_strd.state_index_a;
addr = tmplt_hdr->saved_state_array[index];
} else
addr = crb_addr;
if (crb_entry->crb_ctrl.state_index_v) {
index = crb_entry->crb_ctrl.state_index_v;
read_value =
tmplt_hdr->saved_state_array[index];
} else
read_value = crb_entry->value_1;
qla82xx_md_rw_32(ha, addr, read_value, 1);
opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
}
if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
index = crb_entry->crb_ctrl.state_index_v;
read_value = tmplt_hdr->saved_state_array[index];
read_value <<= crb_entry->crb_ctrl.shl;
read_value >>= crb_entry->crb_ctrl.shr;
if (crb_entry->value_2)
read_value &= crb_entry->value_2;
read_value |= crb_entry->value_3;
read_value += crb_entry->value_1;
tmplt_hdr->saved_state_array[index] = read_value;
opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
}
crb_addr += crb_entry->crb_strd.addr_stride;
}
return rval;
}
static void
qla82xx_minidump_process_rdocm(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
uint32_t r_addr, r_stride, loop_cnt, i, r_value;
struct qla82xx_md_entry_rdocm *ocm_hdr;
__le32 *data_ptr = *d_ptr;
ocm_hdr = (struct qla82xx_md_entry_rdocm *)entry_hdr;
r_addr = ocm_hdr->read_addr;
r_stride = ocm_hdr->read_addr_stride;
loop_cnt = ocm_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
r_value = rd_reg_dword(r_addr + ha->nx_pcibase);
*data_ptr++ = cpu_to_le32(r_value);
r_addr += r_stride;
}
*d_ptr = data_ptr;
}
static void
qla82xx_minidump_process_rdmux(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
struct qla82xx_md_entry_mux *mux_hdr;
__le32 *data_ptr = *d_ptr;
mux_hdr = (struct qla82xx_md_entry_mux *)entry_hdr;
r_addr = mux_hdr->read_addr;
s_addr = mux_hdr->select_addr;
s_stride = mux_hdr->select_value_stride;
s_value = mux_hdr->select_value;
loop_cnt = mux_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla82xx_md_rw_32(ha, s_addr, s_value, 1);
r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
*data_ptr++ = cpu_to_le32(s_value);
*data_ptr++ = cpu_to_le32(r_value);
s_value += s_stride;
}
*d_ptr = data_ptr;
}
static void
qla82xx_minidump_process_rdcrb(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
uint32_t r_addr, r_stride, loop_cnt, i, r_value;
struct qla82xx_md_entry_crb *crb_hdr;
__le32 *data_ptr = *d_ptr;
crb_hdr = (struct qla82xx_md_entry_crb *)entry_hdr;
r_addr = crb_hdr->addr;
r_stride = crb_hdr->crb_strd.addr_stride;
loop_cnt = crb_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
*data_ptr++ = cpu_to_le32(r_addr);
*data_ptr++ = cpu_to_le32(r_value);
r_addr += r_stride;
}
*d_ptr = data_ptr;
}
static int
qla82xx_minidump_process_l2tag(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
uint32_t addr, r_addr, c_addr, t_r_addr;
uint32_t i, k, loop_count, t_value, r_cnt, r_value;
unsigned long p_wait, w_time, p_mask;
uint32_t c_value_w, c_value_r;
struct qla82xx_md_entry_cache *cache_hdr;
int rval = QLA_FUNCTION_FAILED;
__le32 *data_ptr = *d_ptr;
cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
loop_count = cache_hdr->op_count;
r_addr = cache_hdr->read_addr;
c_addr = cache_hdr->control_addr;
c_value_w = cache_hdr->cache_ctrl.write_value;
t_r_addr = cache_hdr->tag_reg_addr;
t_value = cache_hdr->addr_ctrl.init_tag_value;
r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
p_wait = cache_hdr->cache_ctrl.poll_wait;
p_mask = cache_hdr->cache_ctrl.poll_mask;
for (i = 0; i < loop_count; i++) {
qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
if (c_value_w)
qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
if (p_mask) {
w_time = jiffies + p_wait;
do {
c_value_r = qla82xx_md_rw_32(ha, c_addr, 0, 0);
if ((c_value_r & p_mask) == 0)
break;
else if (time_after_eq(jiffies, w_time)) {
/* capturing dump failed */
ql_dbg(ql_dbg_p3p, vha, 0xb032,
"c_value_r: 0x%x, poll_mask: 0x%lx, "
"w_time: 0x%lx\n",
c_value_r, p_mask, w_time);
return rval;
}
} while (1);
}
addr = r_addr;
for (k = 0; k < r_cnt; k++) {
r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
*data_ptr++ = cpu_to_le32(r_value);
addr += cache_hdr->read_ctrl.read_addr_stride;
}
t_value += cache_hdr->addr_ctrl.tag_value_stride;
}
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
static void
qla82xx_minidump_process_l1cache(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
uint32_t addr, r_addr, c_addr, t_r_addr;
uint32_t i, k, loop_count, t_value, r_cnt, r_value;
uint32_t c_value_w;
struct qla82xx_md_entry_cache *cache_hdr;
__le32 *data_ptr = *d_ptr;
cache_hdr = (struct qla82xx_md_entry_cache *)entry_hdr;
loop_count = cache_hdr->op_count;
r_addr = cache_hdr->read_addr;
c_addr = cache_hdr->control_addr;
c_value_w = cache_hdr->cache_ctrl.write_value;
t_r_addr = cache_hdr->tag_reg_addr;
t_value = cache_hdr->addr_ctrl.init_tag_value;
r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
for (i = 0; i < loop_count; i++) {
qla82xx_md_rw_32(ha, t_r_addr, t_value, 1);
qla82xx_md_rw_32(ha, c_addr, c_value_w, 1);
addr = r_addr;
for (k = 0; k < r_cnt; k++) {
r_value = qla82xx_md_rw_32(ha, addr, 0, 0);
*data_ptr++ = cpu_to_le32(r_value);
addr += cache_hdr->read_ctrl.read_addr_stride;
}
t_value += cache_hdr->addr_ctrl.tag_value_stride;
}
*d_ptr = data_ptr;
}
static void
qla82xx_minidump_process_queue(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
uint32_t s_addr, r_addr;
uint32_t r_stride, r_value, r_cnt, qid = 0;
uint32_t i, k, loop_cnt;
struct qla82xx_md_entry_queue *q_hdr;
__le32 *data_ptr = *d_ptr;
q_hdr = (struct qla82xx_md_entry_queue *)entry_hdr;
s_addr = q_hdr->select_addr;
r_cnt = q_hdr->rd_strd.read_addr_cnt;
r_stride = q_hdr->rd_strd.read_addr_stride;
loop_cnt = q_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla82xx_md_rw_32(ha, s_addr, qid, 1);
r_addr = q_hdr->read_addr;
for (k = 0; k < r_cnt; k++) {
r_value = qla82xx_md_rw_32(ha, r_addr, 0, 0);
*data_ptr++ = cpu_to_le32(r_value);
r_addr += r_stride;
}
qid += q_hdr->q_strd.queue_id_stride;
}
*d_ptr = data_ptr;
}
static void
qla82xx_minidump_process_rdrom(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
uint32_t r_addr, r_value;
uint32_t i, loop_cnt;
struct qla82xx_md_entry_rdrom *rom_hdr;
__le32 *data_ptr = *d_ptr;
rom_hdr = (struct qla82xx_md_entry_rdrom *)entry_hdr;
r_addr = rom_hdr->read_addr;
loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
for (i = 0; i < loop_cnt; i++) {
qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
(r_addr & 0xFFFF0000), 1);
r_value = qla82xx_md_rw_32(ha,
MD_DIRECT_ROM_READ_BASE +
(r_addr & 0x0000FFFF), 0, 0);
*data_ptr++ = cpu_to_le32(r_value);
r_addr += sizeof(uint32_t);
}
*d_ptr = data_ptr;
}
static int
qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, __le32 **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
uint32_t r_addr, r_value, r_data;
uint32_t i, j, loop_cnt;
struct qla82xx_md_entry_rdmem *m_hdr;
unsigned long flags;
int rval = QLA_FUNCTION_FAILED;
__le32 *data_ptr = *d_ptr;
m_hdr = (struct qla82xx_md_entry_rdmem *)entry_hdr;
r_addr = m_hdr->read_addr;
loop_cnt = m_hdr->read_data_size/16;
if (r_addr & 0xf) {
ql_log(ql_log_warn, vha, 0xb033,
"Read addr 0x%x not 16 bytes aligned\n", r_addr);
return rval;
}
if (m_hdr->read_data_size % 16) {
ql_log(ql_log_warn, vha, 0xb034,
"Read data[0x%x] not multiple of 16 bytes\n",
m_hdr->read_data_size);
return rval;
}
ql_dbg(ql_dbg_p3p, vha, 0xb035,
"[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
__func__, r_addr, m_hdr->read_data_size, loop_cnt);
write_lock_irqsave(&ha->hw_lock, flags);
for (i = 0; i < loop_cnt; i++) {
qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
r_value = 0;
qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
r_value = MIU_TA_CTL_ENABLE;
qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
qla82xx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
for (j = 0; j < MAX_CTL_CHECK; j++) {
r_value = qla82xx_md_rw_32(ha,
MD_MIU_TEST_AGT_CTRL, 0, 0);
if ((r_value & MIU_TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
printk_ratelimited(KERN_ERR
"failed to read through agent\n");
write_unlock_irqrestore(&ha->hw_lock, flags);
return rval;
}
for (j = 0; j < 4; j++) {
r_data = qla82xx_md_rw_32(ha,
MD_MIU_TEST_AGT_RDDATA[j], 0, 0);
*data_ptr++ = cpu_to_le32(r_data);
}
r_addr += 16;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
int
qla82xx_validate_template_chksum(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint64_t chksum = 0;
uint32_t *d_ptr = (uint32_t *)ha->md_tmplt_hdr;
int count = ha->md_template_size/sizeof(uint32_t);
while (count-- > 0)
chksum += *d_ptr++;
while (chksum >> 32)
chksum = (chksum & 0xFFFFFFFF) + (chksum >> 32);
return ~chksum;
}
static void
qla82xx_mark_entry_skipped(scsi_qla_host_t *vha,
qla82xx_md_entry_hdr_t *entry_hdr, int index)
{
entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
ql_dbg(ql_dbg_p3p, vha, 0xb036,
"Skipping entry[%d]: "
"ETYPE[0x%x]-ELEVEL[0x%x]\n",
index, entry_hdr->entry_type,
entry_hdr->d_ctrl.entry_capture_mask);
}
int
qla82xx_md_collect(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int no_entry_hdr = 0;
qla82xx_md_entry_hdr_t *entry_hdr;
struct qla82xx_md_template_hdr *tmplt_hdr;
__le32 *data_ptr;
uint32_t total_data_size = 0, f_capture_mask, data_collected = 0;
int i = 0, rval = QLA_FUNCTION_FAILED;
tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
data_ptr = ha->md_dump;
if (ha->fw_dumped) {
ql_log(ql_log_warn, vha, 0xb037,
"Firmware has been previously dumped (%p) "
"-- ignoring request.\n", ha->fw_dump);
goto md_failed;
}
ha->fw_dumped = false;
if (!ha->md_tmplt_hdr || !ha->md_dump) {
ql_log(ql_log_warn, vha, 0xb038,
"Memory not allocated for minidump capture\n");
goto md_failed;
}
if (ha->flags.isp82xx_no_md_cap) {
ql_log(ql_log_warn, vha, 0xb054,
"Forced reset from application, "
"ignore minidump capture\n");
ha->flags.isp82xx_no_md_cap = 0;
goto md_failed;
}
if (qla82xx_validate_template_chksum(vha)) {
ql_log(ql_log_info, vha, 0xb039,
"Template checksum validation error\n");
goto md_failed;
}
no_entry_hdr = tmplt_hdr->num_of_entries;
ql_dbg(ql_dbg_p3p, vha, 0xb03a,
"No of entry headers in Template: 0x%x\n", no_entry_hdr);
ql_dbg(ql_dbg_p3p, vha, 0xb03b,
"Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
/* Validate whether required debug level is set */
if ((f_capture_mask & 0x3) != 0x3) {
ql_log(ql_log_warn, vha, 0xb03c,
"Minimum required capture mask[0x%x] level not set\n",
f_capture_mask);
goto md_failed;
}
tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
tmplt_hdr->driver_info[0] = vha->host_no;
tmplt_hdr->driver_info[1] = (QLA_DRIVER_MAJOR_VER << 24) |
(QLA_DRIVER_MINOR_VER << 16) | (QLA_DRIVER_PATCH_VER << 8) |
QLA_DRIVER_BETA_VER;
total_data_size = ha->md_dump_size;
ql_dbg(ql_dbg_p3p, vha, 0xb03d,
"Total minidump data_size 0x%x to be captured\n", total_data_size);
/* Check whether template obtained is valid */
if (tmplt_hdr->entry_type != QLA82XX_TLHDR) {
ql_log(ql_log_warn, vha, 0xb04e,
"Bad template header entry type: 0x%x obtained\n",
tmplt_hdr->entry_type);
goto md_failed;
}
entry_hdr = (qla82xx_md_entry_hdr_t *)
(((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
/* Walk through the entry headers */
for (i = 0; i < no_entry_hdr; i++) {
if (data_collected > total_data_size) {
ql_log(ql_log_warn, vha, 0xb03e,
"More MiniDump data collected: [0x%x]\n",
data_collected);
goto md_failed;
}
if (!(entry_hdr->d_ctrl.entry_capture_mask &
ql2xmdcapmask)) {
entry_hdr->d_ctrl.driver_flags |=
QLA82XX_DBG_SKIPPED_FLAG;
ql_dbg(ql_dbg_p3p, vha, 0xb03f,
"Skipping entry[%d]: "
"ETYPE[0x%x]-ELEVEL[0x%x]\n",
i, entry_hdr->entry_type,
entry_hdr->d_ctrl.entry_capture_mask);
goto skip_nxt_entry;
}
ql_dbg(ql_dbg_p3p, vha, 0xb040,
"[%s]: data ptr[%d]: %p, entry_hdr: %p\n"
"entry_type: 0x%x, capture_mask: 0x%x\n",
__func__, i, data_ptr, entry_hdr,
entry_hdr->entry_type,
entry_hdr->d_ctrl.entry_capture_mask);
ql_dbg(ql_dbg_p3p, vha, 0xb041,
"Data collected: [0x%x], Dump size left:[0x%x]\n",
data_collected, (ha->md_dump_size - data_collected));
/* Decode the entry type and take
* required action to capture debug data */
switch (entry_hdr->entry_type) {
case QLA82XX_RDEND:
qla82xx_mark_entry_skipped(vha, entry_hdr, i);
break;
case QLA82XX_CNTRL:
rval = qla82xx_minidump_process_control(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS) {
qla82xx_mark_entry_skipped(vha, entry_hdr, i);
goto md_failed;
}
break;
case QLA82XX_RDCRB:
qla82xx_minidump_process_rdcrb(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_RDMEM:
rval = qla82xx_minidump_process_rdmem(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS) {
qla82xx_mark_entry_skipped(vha, entry_hdr, i);
goto md_failed;
}
break;
case QLA82XX_BOARD:
case QLA82XX_RDROM:
qla82xx_minidump_process_rdrom(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_L2DTG:
case QLA82XX_L2ITG:
case QLA82XX_L2DAT:
case QLA82XX_L2INS:
rval = qla82xx_minidump_process_l2tag(vha,
entry_hdr, &data_ptr);
if (rval != QLA_SUCCESS) {
qla82xx_mark_entry_skipped(vha, entry_hdr, i);
goto md_failed;
}
break;
case QLA82XX_L1DAT:
case QLA82XX_L1INS:
qla82xx_minidump_process_l1cache(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_RDOCM:
qla82xx_minidump_process_rdocm(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_RDMUX:
qla82xx_minidump_process_rdmux(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_QUEUE:
qla82xx_minidump_process_queue(vha,
entry_hdr, &data_ptr);
break;
case QLA82XX_RDNOP:
default:
qla82xx_mark_entry_skipped(vha, entry_hdr, i);
break;
}
ql_dbg(ql_dbg_p3p, vha, 0xb042,
"[%s]: data ptr[%d]: %p\n", __func__, i, data_ptr);
data_collected = (uint8_t *)data_ptr -
(uint8_t *)ha->md_dump;
skip_nxt_entry:
entry_hdr = (qla82xx_md_entry_hdr_t *)
(((uint8_t *)entry_hdr) + entry_hdr->entry_size);
}
if (data_collected != total_data_size) {
ql_dbg(ql_dbg_p3p, vha, 0xb043,
"MiniDump data mismatch: Data collected: [0x%x],"
"total_data_size:[0x%x]\n",
data_collected, total_data_size);
goto md_failed;
}
ql_log(ql_log_info, vha, 0xb044,
"Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
ha->fw_dumped = true;
qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
md_failed:
return rval;
}
int
qla82xx_md_alloc(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int i, k;
struct qla82xx_md_template_hdr *tmplt_hdr;
tmplt_hdr = (struct qla82xx_md_template_hdr *)ha->md_tmplt_hdr;
if (ql2xmdcapmask < 0x3 || ql2xmdcapmask > 0x7F) {
ql2xmdcapmask = tmplt_hdr->capture_debug_level & 0xFF;
ql_log(ql_log_info, vha, 0xb045,
"Forcing driver capture mask to firmware default capture mask: 0x%x.\n",
ql2xmdcapmask);
}
for (i = 0x2, k = 1; (i & QLA82XX_DEFAULT_CAP_MASK); i <<= 1, k++) {
if (i & ql2xmdcapmask)
ha->md_dump_size += tmplt_hdr->capture_size_array[k];
}
if (ha->md_dump) {
ql_log(ql_log_warn, vha, 0xb046,
"Firmware dump previously allocated.\n");
return 1;
}
ha->md_dump = vmalloc(ha->md_dump_size);
if (ha->md_dump == NULL) {
ql_log(ql_log_warn, vha, 0xb047,
"Unable to allocate memory for Minidump size "
"(0x%x).\n", ha->md_dump_size);
return 1;
}
return 0;
}
void
qla82xx_md_free(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
/* Release the template header allocated */
if (ha->md_tmplt_hdr) {
ql_log(ql_log_info, vha, 0xb048,
"Free MiniDump template: %p, size (%d KB)\n",
ha->md_tmplt_hdr, ha->md_template_size / 1024);
dma_free_coherent(&ha->pdev->dev, ha->md_template_size,
ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
ha->md_tmplt_hdr = NULL;
}
/* Release the template data buffer allocated */
if (ha->md_dump) {
ql_log(ql_log_info, vha, 0xb049,
"Free MiniDump memory: %p, size (%d KB)\n",
ha->md_dump, ha->md_dump_size / 1024);
vfree(ha->md_dump);
ha->md_dump_size = 0;
ha->md_dump = NULL;
}
}
void
qla82xx_md_prep(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int rval;
/* Get Minidump template size */
rval = qla82xx_md_get_template_size(vha);
if (rval == QLA_SUCCESS) {
ql_log(ql_log_info, vha, 0xb04a,
"MiniDump Template size obtained (%d KB)\n",
ha->md_template_size / 1024);
/* Get Minidump template */
if (IS_QLA8044(ha))
rval = qla8044_md_get_template(vha);
else
rval = qla82xx_md_get_template(vha);
if (rval == QLA_SUCCESS) {
ql_dbg(ql_dbg_p3p, vha, 0xb04b,
"MiniDump Template obtained\n");
/* Allocate memory for minidump */
rval = qla82xx_md_alloc(vha);
if (rval == QLA_SUCCESS)
ql_log(ql_log_info, vha, 0xb04c,
"MiniDump memory allocated (%d KB)\n",
ha->md_dump_size / 1024);
else {
ql_log(ql_log_info, vha, 0xb04d,
"Free MiniDump template: %p, size: (%d KB)\n",
ha->md_tmplt_hdr,
ha->md_template_size / 1024);
dma_free_coherent(&ha->pdev->dev,
ha->md_template_size,
ha->md_tmplt_hdr, ha->md_tmplt_hdr_dma);
ha->md_tmplt_hdr = NULL;
}
}
}
}
int
qla82xx_beacon_on(struct scsi_qla_host *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
qla82xx_idc_lock(ha);
rval = qla82xx_mbx_beacon_ctl(vha, 1);
if (rval) {
ql_log(ql_log_warn, vha, 0xb050,
"mbx set led config failed in %s\n", __func__);
goto exit;
}
ha->beacon_blink_led = 1;
exit:
qla82xx_idc_unlock(ha);
return rval;
}
int
qla82xx_beacon_off(struct scsi_qla_host *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
qla82xx_idc_lock(ha);
rval = qla82xx_mbx_beacon_ctl(vha, 0);
if (rval) {
ql_log(ql_log_warn, vha, 0xb051,
"mbx set led config failed in %s\n", __func__);
goto exit;
}
ha->beacon_blink_led = 0;
exit:
qla82xx_idc_unlock(ha);
return rval;
}
void
qla82xx_fw_dump(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (!ha->allow_cna_fw_dump)
return;
scsi_block_requests(vha->host);
ha->flags.isp82xx_no_md_cap = 1;
qla82xx_idc_lock(ha);
qla82xx_set_reset_owner(vha);
qla82xx_idc_unlock(ha);
qla2x00_wait_for_chip_reset(vha);
scsi_unblock_requests(vha->host);
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_nx.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/uaccess.h>
/*
* NVRAM support routines
*/
/**
* qla2x00_lock_nvram_access() -
* @ha: HA context
*/
static void
qla2x00_lock_nvram_access(struct qla_hw_data *ha)
{
uint16_t data;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) {
data = rd_reg_word(®->nvram);
while (data & NVR_BUSY) {
udelay(100);
data = rd_reg_word(®->nvram);
}
/* Lock resource */
wrt_reg_word(®->u.isp2300.host_semaphore, 0x1);
rd_reg_word(®->u.isp2300.host_semaphore);
udelay(5);
data = rd_reg_word(®->u.isp2300.host_semaphore);
while ((data & BIT_0) == 0) {
/* Lock failed */
udelay(100);
wrt_reg_word(®->u.isp2300.host_semaphore, 0x1);
rd_reg_word(®->u.isp2300.host_semaphore);
udelay(5);
data = rd_reg_word(®->u.isp2300.host_semaphore);
}
}
}
/**
* qla2x00_unlock_nvram_access() -
* @ha: HA context
*/
static void
qla2x00_unlock_nvram_access(struct qla_hw_data *ha)
{
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha)) {
wrt_reg_word(®->u.isp2300.host_semaphore, 0);
rd_reg_word(®->u.isp2300.host_semaphore);
}
}
/**
* qla2x00_nv_write() - Prepare for NVRAM read/write operation.
* @ha: HA context
* @data: Serial interface selector
*/
static void
qla2x00_nv_write(struct qla_hw_data *ha, uint16_t data)
{
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
wrt_reg_word(®->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
rd_reg_word(®->nvram); /* PCI Posting. */
NVRAM_DELAY();
wrt_reg_word(®->nvram, data | NVR_SELECT | NVR_CLOCK |
NVR_WRT_ENABLE);
rd_reg_word(®->nvram); /* PCI Posting. */
NVRAM_DELAY();
wrt_reg_word(®->nvram, data | NVR_SELECT | NVR_WRT_ENABLE);
rd_reg_word(®->nvram); /* PCI Posting. */
NVRAM_DELAY();
}
/**
* qla2x00_nvram_request() - Sends read command to NVRAM and gets data from
* NVRAM.
* @ha: HA context
* @nv_cmd: NVRAM command
*
* Bit definitions for NVRAM command:
*
* Bit 26 = start bit
* Bit 25, 24 = opcode
* Bit 23-16 = address
* Bit 15-0 = write data
*
* Returns the word read from nvram @addr.
*/
static uint16_t
qla2x00_nvram_request(struct qla_hw_data *ha, uint32_t nv_cmd)
{
uint8_t cnt;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
uint16_t data = 0;
uint16_t reg_data;
/* Send command to NVRAM. */
nv_cmd <<= 5;
for (cnt = 0; cnt < 11; cnt++) {
if (nv_cmd & BIT_31)
qla2x00_nv_write(ha, NVR_DATA_OUT);
else
qla2x00_nv_write(ha, 0);
nv_cmd <<= 1;
}
/* Read data from NVRAM. */
for (cnt = 0; cnt < 16; cnt++) {
wrt_reg_word(®->nvram, NVR_SELECT | NVR_CLOCK);
rd_reg_word(®->nvram); /* PCI Posting. */
NVRAM_DELAY();
data <<= 1;
reg_data = rd_reg_word(®->nvram);
if (reg_data & NVR_DATA_IN)
data |= BIT_0;
wrt_reg_word(®->nvram, NVR_SELECT);
rd_reg_word(®->nvram); /* PCI Posting. */
NVRAM_DELAY();
}
/* Deselect chip. */
wrt_reg_word(®->nvram, NVR_DESELECT);
rd_reg_word(®->nvram); /* PCI Posting. */
NVRAM_DELAY();
return data;
}
/**
* qla2x00_get_nvram_word() - Calculates word position in NVRAM and calls the
* request routine to get the word from NVRAM.
* @ha: HA context
* @addr: Address in NVRAM to read
*
* Returns the word read from nvram @addr.
*/
static uint16_t
qla2x00_get_nvram_word(struct qla_hw_data *ha, uint32_t addr)
{
uint16_t data;
uint32_t nv_cmd;
nv_cmd = addr << 16;
nv_cmd |= NV_READ_OP;
data = qla2x00_nvram_request(ha, nv_cmd);
return (data);
}
/**
* qla2x00_nv_deselect() - Deselect NVRAM operations.
* @ha: HA context
*/
static void
qla2x00_nv_deselect(struct qla_hw_data *ha)
{
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
wrt_reg_word(®->nvram, NVR_DESELECT);
rd_reg_word(®->nvram); /* PCI Posting. */
NVRAM_DELAY();
}
/**
* qla2x00_write_nvram_word() - Write NVRAM data.
* @ha: HA context
* @addr: Address in NVRAM to write
* @data: word to program
*/
static void
qla2x00_write_nvram_word(struct qla_hw_data *ha, uint32_t addr, __le16 data)
{
int count;
uint16_t word;
uint32_t nv_cmd, wait_cnt;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
qla2x00_nv_write(ha, NVR_DATA_OUT);
qla2x00_nv_write(ha, 0);
qla2x00_nv_write(ha, 0);
for (word = 0; word < 8; word++)
qla2x00_nv_write(ha, NVR_DATA_OUT);
qla2x00_nv_deselect(ha);
/* Write data */
nv_cmd = (addr << 16) | NV_WRITE_OP;
nv_cmd |= (__force u16)data;
nv_cmd <<= 5;
for (count = 0; count < 27; count++) {
if (nv_cmd & BIT_31)
qla2x00_nv_write(ha, NVR_DATA_OUT);
else
qla2x00_nv_write(ha, 0);
nv_cmd <<= 1;
}
qla2x00_nv_deselect(ha);
/* Wait for NVRAM to become ready */
wrt_reg_word(®->nvram, NVR_SELECT);
rd_reg_word(®->nvram); /* PCI Posting. */
wait_cnt = NVR_WAIT_CNT;
do {
if (!--wait_cnt) {
ql_dbg(ql_dbg_user, vha, 0x708d,
"NVRAM didn't go ready...\n");
break;
}
NVRAM_DELAY();
word = rd_reg_word(®->nvram);
} while ((word & NVR_DATA_IN) == 0);
qla2x00_nv_deselect(ha);
/* Disable writes */
qla2x00_nv_write(ha, NVR_DATA_OUT);
for (count = 0; count < 10; count++)
qla2x00_nv_write(ha, 0);
qla2x00_nv_deselect(ha);
}
static int
qla2x00_write_nvram_word_tmo(struct qla_hw_data *ha, uint32_t addr,
__le16 data, uint32_t tmo)
{
int ret, count;
uint16_t word;
uint32_t nv_cmd;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
ret = QLA_SUCCESS;
qla2x00_nv_write(ha, NVR_DATA_OUT);
qla2x00_nv_write(ha, 0);
qla2x00_nv_write(ha, 0);
for (word = 0; word < 8; word++)
qla2x00_nv_write(ha, NVR_DATA_OUT);
qla2x00_nv_deselect(ha);
/* Write data */
nv_cmd = (addr << 16) | NV_WRITE_OP;
nv_cmd |= (__force u16)data;
nv_cmd <<= 5;
for (count = 0; count < 27; count++) {
if (nv_cmd & BIT_31)
qla2x00_nv_write(ha, NVR_DATA_OUT);
else
qla2x00_nv_write(ha, 0);
nv_cmd <<= 1;
}
qla2x00_nv_deselect(ha);
/* Wait for NVRAM to become ready */
wrt_reg_word(®->nvram, NVR_SELECT);
rd_reg_word(®->nvram); /* PCI Posting. */
do {
NVRAM_DELAY();
word = rd_reg_word(®->nvram);
if (!--tmo) {
ret = QLA_FUNCTION_FAILED;
break;
}
} while ((word & NVR_DATA_IN) == 0);
qla2x00_nv_deselect(ha);
/* Disable writes */
qla2x00_nv_write(ha, NVR_DATA_OUT);
for (count = 0; count < 10; count++)
qla2x00_nv_write(ha, 0);
qla2x00_nv_deselect(ha);
return ret;
}
/**
* qla2x00_clear_nvram_protection() -
* @ha: HA context
*/
static int
qla2x00_clear_nvram_protection(struct qla_hw_data *ha)
{
int ret, stat;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
uint32_t word, wait_cnt;
__le16 wprot, wprot_old;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
/* Clear NVRAM write protection. */
ret = QLA_FUNCTION_FAILED;
wprot_old = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
stat = qla2x00_write_nvram_word_tmo(ha, ha->nvram_base,
cpu_to_le16(0x1234), 100000);
wprot = cpu_to_le16(qla2x00_get_nvram_word(ha, ha->nvram_base));
if (stat != QLA_SUCCESS || wprot != cpu_to_le16(0x1234)) {
/* Write enable. */
qla2x00_nv_write(ha, NVR_DATA_OUT);
qla2x00_nv_write(ha, 0);
qla2x00_nv_write(ha, 0);
for (word = 0; word < 8; word++)
qla2x00_nv_write(ha, NVR_DATA_OUT);
qla2x00_nv_deselect(ha);
/* Enable protection register. */
qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
qla2x00_nv_write(ha, NVR_PR_ENABLE);
qla2x00_nv_write(ha, NVR_PR_ENABLE);
for (word = 0; word < 8; word++)
qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
qla2x00_nv_deselect(ha);
/* Clear protection register (ffff is cleared). */
qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
for (word = 0; word < 8; word++)
qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
qla2x00_nv_deselect(ha);
/* Wait for NVRAM to become ready. */
wrt_reg_word(®->nvram, NVR_SELECT);
rd_reg_word(®->nvram); /* PCI Posting. */
wait_cnt = NVR_WAIT_CNT;
do {
if (!--wait_cnt) {
ql_dbg(ql_dbg_user, vha, 0x708e,
"NVRAM didn't go ready...\n");
break;
}
NVRAM_DELAY();
word = rd_reg_word(®->nvram);
} while ((word & NVR_DATA_IN) == 0);
if (wait_cnt)
ret = QLA_SUCCESS;
} else
qla2x00_write_nvram_word(ha, ha->nvram_base, wprot_old);
return ret;
}
static void
qla2x00_set_nvram_protection(struct qla_hw_data *ha, int stat)
{
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
uint32_t word, wait_cnt;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
if (stat != QLA_SUCCESS)
return;
/* Set NVRAM write protection. */
/* Write enable. */
qla2x00_nv_write(ha, NVR_DATA_OUT);
qla2x00_nv_write(ha, 0);
qla2x00_nv_write(ha, 0);
for (word = 0; word < 8; word++)
qla2x00_nv_write(ha, NVR_DATA_OUT);
qla2x00_nv_deselect(ha);
/* Enable protection register. */
qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
qla2x00_nv_write(ha, NVR_PR_ENABLE);
qla2x00_nv_write(ha, NVR_PR_ENABLE);
for (word = 0; word < 8; word++)
qla2x00_nv_write(ha, NVR_DATA_OUT | NVR_PR_ENABLE);
qla2x00_nv_deselect(ha);
/* Enable protection register. */
qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
qla2x00_nv_write(ha, NVR_PR_ENABLE);
qla2x00_nv_write(ha, NVR_PR_ENABLE | NVR_DATA_OUT);
for (word = 0; word < 8; word++)
qla2x00_nv_write(ha, NVR_PR_ENABLE);
qla2x00_nv_deselect(ha);
/* Wait for NVRAM to become ready. */
wrt_reg_word(®->nvram, NVR_SELECT);
rd_reg_word(®->nvram); /* PCI Posting. */
wait_cnt = NVR_WAIT_CNT;
do {
if (!--wait_cnt) {
ql_dbg(ql_dbg_user, vha, 0x708f,
"NVRAM didn't go ready...\n");
break;
}
NVRAM_DELAY();
word = rd_reg_word(®->nvram);
} while ((word & NVR_DATA_IN) == 0);
}
/*****************************************************************************/
/* Flash Manipulation Routines */
/*****************************************************************************/
static inline uint32_t
flash_conf_addr(struct qla_hw_data *ha, uint32_t faddr)
{
return ha->flash_conf_off + faddr;
}
static inline uint32_t
flash_data_addr(struct qla_hw_data *ha, uint32_t faddr)
{
return ha->flash_data_off + faddr;
}
static inline uint32_t
nvram_conf_addr(struct qla_hw_data *ha, uint32_t naddr)
{
return ha->nvram_conf_off + naddr;
}
static inline uint32_t
nvram_data_addr(struct qla_hw_data *ha, uint32_t naddr)
{
return ha->nvram_data_off + naddr;
}
static int
qla24xx_read_flash_dword(struct qla_hw_data *ha, uint32_t addr, uint32_t *data)
{
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
ulong cnt = 30000;
wrt_reg_dword(®->flash_addr, addr & ~FARX_DATA_FLAG);
while (cnt--) {
if (rd_reg_dword(®->flash_addr) & FARX_DATA_FLAG) {
*data = rd_reg_dword(®->flash_data);
return QLA_SUCCESS;
}
udelay(10);
cond_resched();
}
ql_log(ql_log_warn, pci_get_drvdata(ha->pdev), 0x7090,
"Flash read dword at %x timeout.\n", addr);
*data = 0xDEADDEAD;
return QLA_FUNCTION_TIMEOUT;
}
int
qla24xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
uint32_t dwords)
{
ulong i;
int ret = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
/* Dword reads to flash. */
faddr = flash_data_addr(ha, faddr);
for (i = 0; i < dwords; i++, faddr++, dwptr++) {
ret = qla24xx_read_flash_dword(ha, faddr, dwptr);
if (ret != QLA_SUCCESS)
break;
cpu_to_le32s(dwptr);
}
return ret;
}
static int
qla24xx_write_flash_dword(struct qla_hw_data *ha, uint32_t addr, uint32_t data)
{
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
ulong cnt = 500000;
wrt_reg_dword(®->flash_data, data);
wrt_reg_dword(®->flash_addr, addr | FARX_DATA_FLAG);
while (cnt--) {
if (!(rd_reg_dword(®->flash_addr) & FARX_DATA_FLAG))
return QLA_SUCCESS;
udelay(10);
cond_resched();
}
ql_log(ql_log_warn, pci_get_drvdata(ha->pdev), 0x7090,
"Flash write dword at %x timeout.\n", addr);
return QLA_FUNCTION_TIMEOUT;
}
static void
qla24xx_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id,
uint8_t *flash_id)
{
uint32_t faddr, ids = 0;
*man_id = *flash_id = 0;
faddr = flash_conf_addr(ha, 0x03ab);
if (!qla24xx_read_flash_dword(ha, faddr, &ids)) {
*man_id = LSB(ids);
*flash_id = MSB(ids);
}
/* Check if man_id and flash_id are valid. */
if (ids != 0xDEADDEAD && (*man_id == 0 || *flash_id == 0)) {
/* Read information using 0x9f opcode
* Device ID, Mfg ID would be read in the format:
* <Ext Dev Info><Device ID Part2><Device ID Part 1><Mfg ID>
* Example: ATMEL 0x00 01 45 1F
* Extract MFG and Dev ID from last two bytes.
*/
faddr = flash_conf_addr(ha, 0x009f);
if (!qla24xx_read_flash_dword(ha, faddr, &ids)) {
*man_id = LSB(ids);
*flash_id = MSB(ids);
}
}
}
static int
qla2xxx_find_flt_start(scsi_qla_host_t *vha, uint32_t *start)
{
const char *loc, *locations[] = { "DEF", "PCI" };
uint32_t pcihdr, pcids;
uint16_t cnt, chksum;
__le16 *wptr;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct qla_flt_location *fltl = (void *)req->ring;
uint32_t *dcode = (uint32_t *)req->ring;
uint8_t *buf = (void *)req->ring, *bcode, last_image;
/*
* FLT-location structure resides after the last PCI region.
*/
/* Begin with sane defaults. */
loc = locations[0];
*start = 0;
if (IS_QLA24XX_TYPE(ha))
*start = FA_FLASH_LAYOUT_ADDR_24;
else if (IS_QLA25XX(ha))
*start = FA_FLASH_LAYOUT_ADDR;
else if (IS_QLA81XX(ha))
*start = FA_FLASH_LAYOUT_ADDR_81;
else if (IS_P3P_TYPE(ha)) {
*start = FA_FLASH_LAYOUT_ADDR_82;
goto end;
} else if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
*start = FA_FLASH_LAYOUT_ADDR_83;
goto end;
} else if (IS_QLA28XX(ha)) {
*start = FA_FLASH_LAYOUT_ADDR_28;
goto end;
}
/* Begin with first PCI expansion ROM header. */
pcihdr = 0;
do {
/* Verify PCI expansion ROM header. */
qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20);
bcode = buf + (pcihdr % 4);
if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa)
goto end;
/* Locate PCI data structure. */
pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20);
bcode = buf + (pcihdr % 4);
/* Validate signature of PCI data structure. */
if (bcode[0x0] != 'P' || bcode[0x1] != 'C' ||
bcode[0x2] != 'I' || bcode[0x3] != 'R')
goto end;
last_image = bcode[0x15] & BIT_7;
/* Locate next PCI expansion ROM. */
pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
} while (!last_image);
/* Now verify FLT-location structure. */
qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, sizeof(*fltl) >> 2);
if (memcmp(fltl->sig, "QFLT", 4))
goto end;
wptr = (__force __le16 *)req->ring;
cnt = sizeof(*fltl) / sizeof(*wptr);
for (chksum = 0; cnt--; wptr++)
chksum += le16_to_cpu(*wptr);
if (chksum) {
ql_log(ql_log_fatal, vha, 0x0045,
"Inconsistent FLTL detected: checksum=0x%x.\n", chksum);
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010e,
fltl, sizeof(*fltl));
return QLA_FUNCTION_FAILED;
}
/* Good data. Use specified location. */
loc = locations[1];
*start = (le16_to_cpu(fltl->start_hi) << 16 |
le16_to_cpu(fltl->start_lo)) >> 2;
end:
ql_dbg(ql_dbg_init, vha, 0x0046,
"FLTL[%s] = 0x%x.\n",
loc, *start);
return QLA_SUCCESS;
}
static void
qla2xxx_get_flt_info(scsi_qla_host_t *vha, uint32_t flt_addr)
{
const char *locations[] = { "DEF", "FLT" }, *loc = locations[1];
const uint32_t def_fw[] =
{ FA_RISC_CODE_ADDR, FA_RISC_CODE_ADDR, FA_RISC_CODE_ADDR_81 };
const uint32_t def_boot[] =
{ FA_BOOT_CODE_ADDR, FA_BOOT_CODE_ADDR, FA_BOOT_CODE_ADDR_81 };
const uint32_t def_vpd_nvram[] =
{ FA_VPD_NVRAM_ADDR, FA_VPD_NVRAM_ADDR, FA_VPD_NVRAM_ADDR_81 };
const uint32_t def_vpd0[] =
{ 0, 0, FA_VPD0_ADDR_81 };
const uint32_t def_vpd1[] =
{ 0, 0, FA_VPD1_ADDR_81 };
const uint32_t def_nvram0[] =
{ 0, 0, FA_NVRAM0_ADDR_81 };
const uint32_t def_nvram1[] =
{ 0, 0, FA_NVRAM1_ADDR_81 };
const uint32_t def_fdt[] =
{ FA_FLASH_DESCR_ADDR_24, FA_FLASH_DESCR_ADDR,
FA_FLASH_DESCR_ADDR_81 };
const uint32_t def_npiv_conf0[] =
{ FA_NPIV_CONF0_ADDR_24, FA_NPIV_CONF0_ADDR,
FA_NPIV_CONF0_ADDR_81 };
const uint32_t def_npiv_conf1[] =
{ FA_NPIV_CONF1_ADDR_24, FA_NPIV_CONF1_ADDR,
FA_NPIV_CONF1_ADDR_81 };
const uint32_t fcp_prio_cfg0[] =
{ FA_FCP_PRIO0_ADDR, FA_FCP_PRIO0_ADDR_25,
0 };
const uint32_t fcp_prio_cfg1[] =
{ FA_FCP_PRIO1_ADDR, FA_FCP_PRIO1_ADDR_25,
0 };
struct qla_hw_data *ha = vha->hw;
uint32_t def = IS_QLA81XX(ha) ? 2 : IS_QLA25XX(ha) ? 1 : 0;
struct qla_flt_header *flt = ha->flt;
struct qla_flt_region *region = &flt->region[0];
__le16 *wptr;
uint16_t cnt, chksum;
uint32_t start;
/* Assign FCP prio region since older adapters may not have FLT, or
FCP prio region in it's FLT.
*/
ha->flt_region_fcp_prio = (ha->port_no == 0) ?
fcp_prio_cfg0[def] : fcp_prio_cfg1[def];
ha->flt_region_flt = flt_addr;
wptr = (__force __le16 *)ha->flt;
ha->isp_ops->read_optrom(vha, flt, flt_addr << 2,
(sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE));
if (le16_to_cpu(*wptr) == 0xffff)
goto no_flash_data;
if (flt->version != cpu_to_le16(1)) {
ql_log(ql_log_warn, vha, 0x0047,
"Unsupported FLT detected: version=0x%x length=0x%x checksum=0x%x.\n",
le16_to_cpu(flt->version), le16_to_cpu(flt->length),
le16_to_cpu(flt->checksum));
goto no_flash_data;
}
cnt = (sizeof(*flt) + le16_to_cpu(flt->length)) / sizeof(*wptr);
for (chksum = 0; cnt--; wptr++)
chksum += le16_to_cpu(*wptr);
if (chksum) {
ql_log(ql_log_fatal, vha, 0x0048,
"Inconsistent FLT detected: version=0x%x length=0x%x checksum=0x%x.\n",
le16_to_cpu(flt->version), le16_to_cpu(flt->length),
le16_to_cpu(flt->checksum));
goto no_flash_data;
}
cnt = le16_to_cpu(flt->length) / sizeof(*region);
for ( ; cnt; cnt--, region++) {
/* Store addresses as DWORD offsets. */
start = le32_to_cpu(region->start) >> 2;
ql_dbg(ql_dbg_init, vha, 0x0049,
"FLT[%#x]: start=%#x end=%#x size=%#x.\n",
le16_to_cpu(region->code), start,
le32_to_cpu(region->end) >> 2,
le32_to_cpu(region->size) >> 2);
if (region->attribute)
ql_log(ql_dbg_init, vha, 0xffff,
"Region %x is secure\n", region->code);
switch (le16_to_cpu(region->code)) {
case FLT_REG_FCOE_FW:
if (!IS_QLA8031(ha))
break;
ha->flt_region_fw = start;
break;
case FLT_REG_FW:
if (IS_QLA8031(ha))
break;
ha->flt_region_fw = start;
break;
case FLT_REG_BOOT_CODE:
ha->flt_region_boot = start;
break;
case FLT_REG_VPD_0:
if (IS_QLA8031(ha))
break;
ha->flt_region_vpd_nvram = start;
if (IS_P3P_TYPE(ha))
break;
if (ha->port_no == 0)
ha->flt_region_vpd = start;
break;
case FLT_REG_VPD_1:
if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
break;
if (ha->port_no == 1)
ha->flt_region_vpd = start;
break;
case FLT_REG_VPD_2:
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
break;
if (ha->port_no == 2)
ha->flt_region_vpd = start;
break;
case FLT_REG_VPD_3:
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
break;
if (ha->port_no == 3)
ha->flt_region_vpd = start;
break;
case FLT_REG_NVRAM_0:
if (IS_QLA8031(ha))
break;
if (ha->port_no == 0)
ha->flt_region_nvram = start;
break;
case FLT_REG_NVRAM_1:
if (IS_QLA8031(ha))
break;
if (ha->port_no == 1)
ha->flt_region_nvram = start;
break;
case FLT_REG_NVRAM_2:
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
break;
if (ha->port_no == 2)
ha->flt_region_nvram = start;
break;
case FLT_REG_NVRAM_3:
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
break;
if (ha->port_no == 3)
ha->flt_region_nvram = start;
break;
case FLT_REG_FDT:
ha->flt_region_fdt = start;
break;
case FLT_REG_NPIV_CONF_0:
if (ha->port_no == 0)
ha->flt_region_npiv_conf = start;
break;
case FLT_REG_NPIV_CONF_1:
if (ha->port_no == 1)
ha->flt_region_npiv_conf = start;
break;
case FLT_REG_GOLD_FW:
ha->flt_region_gold_fw = start;
break;
case FLT_REG_FCP_PRIO_0:
if (ha->port_no == 0)
ha->flt_region_fcp_prio = start;
break;
case FLT_REG_FCP_PRIO_1:
if (ha->port_no == 1)
ha->flt_region_fcp_prio = start;
break;
case FLT_REG_BOOT_CODE_82XX:
ha->flt_region_boot = start;
break;
case FLT_REG_BOOT_CODE_8044:
if (IS_QLA8044(ha))
ha->flt_region_boot = start;
break;
case FLT_REG_FW_82XX:
ha->flt_region_fw = start;
break;
case FLT_REG_CNA_FW:
if (IS_CNA_CAPABLE(ha))
ha->flt_region_fw = start;
break;
case FLT_REG_GOLD_FW_82XX:
ha->flt_region_gold_fw = start;
break;
case FLT_REG_BOOTLOAD_82XX:
ha->flt_region_bootload = start;
break;
case FLT_REG_VPD_8XXX:
if (IS_CNA_CAPABLE(ha))
ha->flt_region_vpd = start;
break;
case FLT_REG_FCOE_NVRAM_0:
if (!(IS_QLA8031(ha) || IS_QLA8044(ha)))
break;
if (ha->port_no == 0)
ha->flt_region_nvram = start;
break;
case FLT_REG_FCOE_NVRAM_1:
if (!(IS_QLA8031(ha) || IS_QLA8044(ha)))
break;
if (ha->port_no == 1)
ha->flt_region_nvram = start;
break;
case FLT_REG_IMG_PRI_27XX:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
ha->flt_region_img_status_pri = start;
break;
case FLT_REG_IMG_SEC_27XX:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
ha->flt_region_img_status_sec = start;
break;
case FLT_REG_FW_SEC_27XX:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
ha->flt_region_fw_sec = start;
break;
case FLT_REG_BOOTLOAD_SEC_27XX:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
ha->flt_region_boot_sec = start;
break;
case FLT_REG_AUX_IMG_PRI_28XX:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
ha->flt_region_aux_img_status_pri = start;
break;
case FLT_REG_AUX_IMG_SEC_28XX:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
ha->flt_region_aux_img_status_sec = start;
break;
case FLT_REG_NVRAM_SEC_28XX_0:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
if (ha->port_no == 0)
ha->flt_region_nvram_sec = start;
break;
case FLT_REG_NVRAM_SEC_28XX_1:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
if (ha->port_no == 1)
ha->flt_region_nvram_sec = start;
break;
case FLT_REG_NVRAM_SEC_28XX_2:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
if (ha->port_no == 2)
ha->flt_region_nvram_sec = start;
break;
case FLT_REG_NVRAM_SEC_28XX_3:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
if (ha->port_no == 3)
ha->flt_region_nvram_sec = start;
break;
case FLT_REG_VPD_SEC_27XX_0:
case FLT_REG_VPD_SEC_28XX_0:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
ha->flt_region_vpd_nvram_sec = start;
if (ha->port_no == 0)
ha->flt_region_vpd_sec = start;
}
break;
case FLT_REG_VPD_SEC_27XX_1:
case FLT_REG_VPD_SEC_28XX_1:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
if (ha->port_no == 1)
ha->flt_region_vpd_sec = start;
break;
case FLT_REG_VPD_SEC_27XX_2:
case FLT_REG_VPD_SEC_28XX_2:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
if (ha->port_no == 2)
ha->flt_region_vpd_sec = start;
break;
case FLT_REG_VPD_SEC_27XX_3:
case FLT_REG_VPD_SEC_28XX_3:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
if (ha->port_no == 3)
ha->flt_region_vpd_sec = start;
break;
}
}
goto done;
no_flash_data:
/* Use hardcoded defaults. */
loc = locations[0];
ha->flt_region_fw = def_fw[def];
ha->flt_region_boot = def_boot[def];
ha->flt_region_vpd_nvram = def_vpd_nvram[def];
ha->flt_region_vpd = (ha->port_no == 0) ?
def_vpd0[def] : def_vpd1[def];
ha->flt_region_nvram = (ha->port_no == 0) ?
def_nvram0[def] : def_nvram1[def];
ha->flt_region_fdt = def_fdt[def];
ha->flt_region_npiv_conf = (ha->port_no == 0) ?
def_npiv_conf0[def] : def_npiv_conf1[def];
done:
ql_dbg(ql_dbg_init, vha, 0x004a,
"FLT[%s]: boot=0x%x fw=0x%x vpd_nvram=0x%x vpd=0x%x nvram=0x%x "
"fdt=0x%x flt=0x%x npiv=0x%x fcp_prif_cfg=0x%x.\n",
loc, ha->flt_region_boot, ha->flt_region_fw,
ha->flt_region_vpd_nvram, ha->flt_region_vpd, ha->flt_region_nvram,
ha->flt_region_fdt, ha->flt_region_flt, ha->flt_region_npiv_conf,
ha->flt_region_fcp_prio);
}
static void
qla2xxx_get_fdt_info(scsi_qla_host_t *vha)
{
#define FLASH_BLK_SIZE_4K 0x1000
#define FLASH_BLK_SIZE_32K 0x8000
#define FLASH_BLK_SIZE_64K 0x10000
const char *loc, *locations[] = { "MID", "FDT" };
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
uint16_t cnt, chksum;
__le16 *wptr = (__force __le16 *)req->ring;
struct qla_fdt_layout *fdt = (struct qla_fdt_layout *)req->ring;
uint8_t man_id, flash_id;
uint16_t mid = 0, fid = 0;
ha->isp_ops->read_optrom(vha, fdt, ha->flt_region_fdt << 2,
OPTROM_BURST_DWORDS);
if (le16_to_cpu(*wptr) == 0xffff)
goto no_flash_data;
if (memcmp(fdt->sig, "QLID", 4))
goto no_flash_data;
for (cnt = 0, chksum = 0; cnt < sizeof(*fdt) >> 1; cnt++, wptr++)
chksum += le16_to_cpu(*wptr);
if (chksum) {
ql_dbg(ql_dbg_init, vha, 0x004c,
"Inconsistent FDT detected:"
" checksum=0x%x id=%c version0x%x.\n", chksum,
fdt->sig[0], le16_to_cpu(fdt->version));
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0113,
fdt, sizeof(*fdt));
goto no_flash_data;
}
loc = locations[1];
mid = le16_to_cpu(fdt->man_id);
fid = le16_to_cpu(fdt->id);
ha->fdt_wrt_disable = fdt->wrt_disable_bits;
ha->fdt_wrt_enable = fdt->wrt_enable_bits;
ha->fdt_wrt_sts_reg_cmd = fdt->wrt_sts_reg_cmd;
if (IS_QLA8044(ha))
ha->fdt_erase_cmd = fdt->erase_cmd;
else
ha->fdt_erase_cmd =
flash_conf_addr(ha, 0x0300 | fdt->erase_cmd);
ha->fdt_block_size = le32_to_cpu(fdt->block_size);
if (fdt->unprotect_sec_cmd) {
ha->fdt_unprotect_sec_cmd = flash_conf_addr(ha, 0x0300 |
fdt->unprotect_sec_cmd);
ha->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
flash_conf_addr(ha, 0x0300 | fdt->protect_sec_cmd) :
flash_conf_addr(ha, 0x0336);
}
goto done;
no_flash_data:
loc = locations[0];
if (IS_P3P_TYPE(ha)) {
ha->fdt_block_size = FLASH_BLK_SIZE_64K;
goto done;
}
qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id);
mid = man_id;
fid = flash_id;
ha->fdt_wrt_disable = 0x9c;
ha->fdt_erase_cmd = flash_conf_addr(ha, 0x03d8);
switch (man_id) {
case 0xbf: /* STT flash. */
if (flash_id == 0x8e)
ha->fdt_block_size = FLASH_BLK_SIZE_64K;
else
ha->fdt_block_size = FLASH_BLK_SIZE_32K;
if (flash_id == 0x80)
ha->fdt_erase_cmd = flash_conf_addr(ha, 0x0352);
break;
case 0x13: /* ST M25P80. */
ha->fdt_block_size = FLASH_BLK_SIZE_64K;
break;
case 0x1f: /* Atmel 26DF081A. */
ha->fdt_block_size = FLASH_BLK_SIZE_4K;
ha->fdt_erase_cmd = flash_conf_addr(ha, 0x0320);
ha->fdt_unprotect_sec_cmd = flash_conf_addr(ha, 0x0339);
ha->fdt_protect_sec_cmd = flash_conf_addr(ha, 0x0336);
break;
default:
/* Default to 64 kb sector size. */
ha->fdt_block_size = FLASH_BLK_SIZE_64K;
break;
}
done:
ql_dbg(ql_dbg_init, vha, 0x004d,
"FDT[%s]: (0x%x/0x%x) erase=0x%x "
"pr=%x wrtd=0x%x blk=0x%x.\n",
loc, mid, fid,
ha->fdt_erase_cmd, ha->fdt_protect_sec_cmd,
ha->fdt_wrt_disable, ha->fdt_block_size);
}
static void
qla2xxx_get_idc_param(scsi_qla_host_t *vha)
{
#define QLA82XX_IDC_PARAM_ADDR 0x003e885c
__le32 *wptr;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
if (!(IS_P3P_TYPE(ha)))
return;
wptr = (__force __le32 *)req->ring;
ha->isp_ops->read_optrom(vha, req->ring, QLA82XX_IDC_PARAM_ADDR, 8);
if (*wptr == cpu_to_le32(0xffffffff)) {
ha->fcoe_dev_init_timeout = QLA82XX_ROM_DEV_INIT_TIMEOUT;
ha->fcoe_reset_timeout = QLA82XX_ROM_DRV_RESET_ACK_TIMEOUT;
} else {
ha->fcoe_dev_init_timeout = le32_to_cpu(*wptr);
wptr++;
ha->fcoe_reset_timeout = le32_to_cpu(*wptr);
}
ql_dbg(ql_dbg_init, vha, 0x004e,
"fcoe_dev_init_timeout=%d "
"fcoe_reset_timeout=%d.\n", ha->fcoe_dev_init_timeout,
ha->fcoe_reset_timeout);
return;
}
int
qla2xxx_get_flash_info(scsi_qla_host_t *vha)
{
int ret;
uint32_t flt_addr;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
!IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return QLA_SUCCESS;
ret = qla2xxx_find_flt_start(vha, &flt_addr);
if (ret != QLA_SUCCESS)
return ret;
qla2xxx_get_flt_info(vha, flt_addr);
qla2xxx_get_fdt_info(vha);
qla2xxx_get_idc_param(vha);
return QLA_SUCCESS;
}
void
qla2xxx_flash_npiv_conf(scsi_qla_host_t *vha)
{
#define NPIV_CONFIG_SIZE (16*1024)
void *data;
__le16 *wptr;
uint16_t cnt, chksum;
int i;
struct qla_npiv_header hdr;
struct qla_npiv_entry *entry;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
!IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha))
return;
if (ha->flags.nic_core_reset_hdlr_active)
return;
if (IS_QLA8044(ha))
return;
ha->isp_ops->read_optrom(vha, &hdr, ha->flt_region_npiv_conf << 2,
sizeof(struct qla_npiv_header));
if (hdr.version == cpu_to_le16(0xffff))
return;
if (hdr.version != cpu_to_le16(1)) {
ql_dbg(ql_dbg_user, vha, 0x7090,
"Unsupported NPIV-Config "
"detected: version=0x%x entries=0x%x checksum=0x%x.\n",
le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
le16_to_cpu(hdr.checksum));
return;
}
data = kmalloc(NPIV_CONFIG_SIZE, GFP_KERNEL);
if (!data) {
ql_log(ql_log_warn, vha, 0x7091,
"Unable to allocate memory for data.\n");
return;
}
ha->isp_ops->read_optrom(vha, data, ha->flt_region_npiv_conf << 2,
NPIV_CONFIG_SIZE);
cnt = (sizeof(hdr) + le16_to_cpu(hdr.entries) * sizeof(*entry)) >> 1;
for (wptr = data, chksum = 0; cnt--; wptr++)
chksum += le16_to_cpu(*wptr);
if (chksum) {
ql_dbg(ql_dbg_user, vha, 0x7092,
"Inconsistent NPIV-Config "
"detected: version=0x%x entries=0x%x checksum=0x%x.\n",
le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
le16_to_cpu(hdr.checksum));
goto done;
}
entry = data + sizeof(struct qla_npiv_header);
cnt = le16_to_cpu(hdr.entries);
for (i = 0; cnt; cnt--, entry++, i++) {
uint16_t flags;
struct fc_vport_identifiers vid;
struct fc_vport *vport;
memcpy(&ha->npiv_info[i], entry, sizeof(struct qla_npiv_entry));
flags = le16_to_cpu(entry->flags);
if (flags == 0xffff)
continue;
if ((flags & BIT_0) == 0)
continue;
memset(&vid, 0, sizeof(vid));
vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
vid.vport_type = FC_PORTTYPE_NPIV;
vid.disable = false;
vid.port_name = wwn_to_u64(entry->port_name);
vid.node_name = wwn_to_u64(entry->node_name);
ql_dbg(ql_dbg_user, vha, 0x7093,
"NPIV[%02x]: wwpn=%llx wwnn=%llx vf_id=%#x Q_qos=%#x F_qos=%#x.\n",
cnt, vid.port_name, vid.node_name,
le16_to_cpu(entry->vf_id),
entry->q_qos, entry->f_qos);
if (i < QLA_PRECONFIG_VPORTS) {
vport = fc_vport_create(vha->host, 0, &vid);
if (!vport)
ql_log(ql_log_warn, vha, 0x7094,
"NPIV-Config Failed to create vport [%02x]: wwpn=%llx wwnn=%llx.\n",
cnt, vid.port_name, vid.node_name);
}
}
done:
kfree(data);
}
static int
qla24xx_unprotect_flash(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
if (ha->flags.fac_supported)
return qla81xx_fac_do_write_enable(vha, 1);
/* Enable flash write. */
wrt_reg_dword(®->ctrl_status,
rd_reg_dword(®->ctrl_status) | CSRX_FLASH_ENABLE);
rd_reg_dword(®->ctrl_status); /* PCI Posting. */
if (!ha->fdt_wrt_disable)
goto done;
/* Disable flash write-protection, first clear SR protection bit */
qla24xx_write_flash_dword(ha, flash_conf_addr(ha, 0x101), 0);
/* Then write zero again to clear remaining SR bits.*/
qla24xx_write_flash_dword(ha, flash_conf_addr(ha, 0x101), 0);
done:
return QLA_SUCCESS;
}
static int
qla24xx_protect_flash(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
ulong cnt = 300;
uint32_t faddr, dword;
if (ha->flags.fac_supported)
return qla81xx_fac_do_write_enable(vha, 0);
if (!ha->fdt_wrt_disable)
goto skip_wrt_protect;
/* Enable flash write-protection and wait for completion. */
faddr = flash_conf_addr(ha, 0x101);
qla24xx_write_flash_dword(ha, faddr, ha->fdt_wrt_disable);
faddr = flash_conf_addr(ha, 0x5);
while (cnt--) {
if (!qla24xx_read_flash_dword(ha, faddr, &dword)) {
if (!(dword & BIT_0))
break;
}
udelay(10);
}
skip_wrt_protect:
/* Disable flash write. */
wrt_reg_dword(®->ctrl_status,
rd_reg_dword(®->ctrl_status) & ~CSRX_FLASH_ENABLE);
return QLA_SUCCESS;
}
static int
qla24xx_erase_sector(scsi_qla_host_t *vha, uint32_t fdata)
{
struct qla_hw_data *ha = vha->hw;
uint32_t start, finish;
if (ha->flags.fac_supported) {
start = fdata >> 2;
finish = start + (ha->fdt_block_size >> 2) - 1;
return qla81xx_fac_erase_sector(vha, flash_data_addr(ha,
start), flash_data_addr(ha, finish));
}
return qla24xx_write_flash_dword(ha, ha->fdt_erase_cmd,
(fdata & 0xff00) | ((fdata << 16) & 0xff0000) |
((fdata >> 16) & 0xff));
}
static int
qla24xx_write_flash_data(scsi_qla_host_t *vha, __le32 *dwptr, uint32_t faddr,
uint32_t dwords)
{
int ret;
ulong liter;
ulong dburst = OPTROM_BURST_DWORDS; /* burst size in dwords */
uint32_t sec_mask, rest_addr, fdata;
dma_addr_t optrom_dma;
void *optrom = NULL;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
goto next;
/* Allocate dma buffer for burst write */
optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
&optrom_dma, GFP_KERNEL);
if (!optrom) {
ql_log(ql_log_warn, vha, 0x7095,
"Failed allocate burst (%x bytes)\n", OPTROM_BURST_SIZE);
}
next:
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0x7095,
"Unprotect flash...\n");
ret = qla24xx_unprotect_flash(vha);
if (ret) {
ql_log(ql_log_warn, vha, 0x7096,
"Failed to unprotect flash.\n");
goto done;
}
rest_addr = (ha->fdt_block_size >> 2) - 1;
sec_mask = ~rest_addr;
for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) {
fdata = (faddr & sec_mask) << 2;
/* Are we at the beginning of a sector? */
if (!(faddr & rest_addr)) {
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0x7095,
"Erase sector %#x...\n", faddr);
ret = qla24xx_erase_sector(vha, fdata);
if (ret) {
ql_dbg(ql_dbg_user, vha, 0x7007,
"Failed to erase sector %x.\n", faddr);
break;
}
}
if (optrom) {
/* If smaller than a burst remaining */
if (dwords - liter < dburst)
dburst = dwords - liter;
/* Copy to dma buffer */
memcpy(optrom, dwptr, dburst << 2);
/* Burst write */
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0x7095,
"Write burst (%#lx dwords)...\n", dburst);
ret = qla2x00_load_ram(vha, optrom_dma,
flash_data_addr(ha, faddr), dburst);
if (!ret) {
liter += dburst - 1;
faddr += dburst - 1;
dwptr += dburst - 1;
continue;
}
ql_log(ql_log_warn, vha, 0x7097,
"Failed burst-write at %x (%p/%#llx)....\n",
flash_data_addr(ha, faddr), optrom,
(u64)optrom_dma);
dma_free_coherent(&ha->pdev->dev,
OPTROM_BURST_SIZE, optrom, optrom_dma);
optrom = NULL;
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
break;
ql_log(ql_log_warn, vha, 0x7098,
"Reverting to slow write...\n");
}
/* Slow write */
ret = qla24xx_write_flash_dword(ha,
flash_data_addr(ha, faddr), le32_to_cpu(*dwptr));
if (ret) {
ql_dbg(ql_dbg_user, vha, 0x7006,
"Failed slow write %x (%x)\n", faddr, *dwptr);
break;
}
}
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0x7095,
"Protect flash...\n");
ret = qla24xx_protect_flash(vha);
if (ret)
ql_log(ql_log_warn, vha, 0x7099,
"Failed to protect flash\n");
done:
if (optrom)
dma_free_coherent(&ha->pdev->dev,
OPTROM_BURST_SIZE, optrom, optrom_dma);
return ret;
}
uint8_t *
qla2x00_read_nvram_data(scsi_qla_host_t *vha, void *buf, uint32_t naddr,
uint32_t bytes)
{
uint32_t i;
__le16 *wptr;
struct qla_hw_data *ha = vha->hw;
/* Word reads to NVRAM via registers. */
wptr = buf;
qla2x00_lock_nvram_access(ha);
for (i = 0; i < bytes >> 1; i++, naddr++)
wptr[i] = cpu_to_le16(qla2x00_get_nvram_word(ha,
naddr));
qla2x00_unlock_nvram_access(ha);
return buf;
}
uint8_t *
qla24xx_read_nvram_data(scsi_qla_host_t *vha, void *buf, uint32_t naddr,
uint32_t bytes)
{
struct qla_hw_data *ha = vha->hw;
uint32_t *dwptr = buf;
uint32_t i;
if (IS_P3P_TYPE(ha))
return buf;
/* Dword reads to flash. */
naddr = nvram_data_addr(ha, naddr);
bytes >>= 2;
for (i = 0; i < bytes; i++, naddr++, dwptr++) {
if (qla24xx_read_flash_dword(ha, naddr, dwptr))
break;
cpu_to_le32s(dwptr);
}
return buf;
}
int
qla2x00_write_nvram_data(scsi_qla_host_t *vha, void *buf, uint32_t naddr,
uint32_t bytes)
{
int ret, stat;
uint32_t i;
uint16_t *wptr;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
ret = QLA_SUCCESS;
spin_lock_irqsave(&ha->hardware_lock, flags);
qla2x00_lock_nvram_access(ha);
/* Disable NVRAM write-protection. */
stat = qla2x00_clear_nvram_protection(ha);
wptr = (uint16_t *)buf;
for (i = 0; i < bytes >> 1; i++, naddr++) {
qla2x00_write_nvram_word(ha, naddr,
cpu_to_le16(*wptr));
wptr++;
}
/* Enable NVRAM write-protection. */
qla2x00_set_nvram_protection(ha, stat);
qla2x00_unlock_nvram_access(ha);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return ret;
}
int
qla24xx_write_nvram_data(scsi_qla_host_t *vha, void *buf, uint32_t naddr,
uint32_t bytes)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
__le32 *dwptr = buf;
uint32_t i;
int ret;
ret = QLA_SUCCESS;
if (IS_P3P_TYPE(ha))
return ret;
/* Enable flash write. */
wrt_reg_dword(®->ctrl_status,
rd_reg_dword(®->ctrl_status) | CSRX_FLASH_ENABLE);
rd_reg_dword(®->ctrl_status); /* PCI Posting. */
/* Disable NVRAM write-protection. */
qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0);
qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0);
/* Dword writes to flash. */
naddr = nvram_data_addr(ha, naddr);
bytes >>= 2;
for (i = 0; i < bytes; i++, naddr++, dwptr++) {
if (qla24xx_write_flash_dword(ha, naddr, le32_to_cpu(*dwptr))) {
ql_dbg(ql_dbg_user, vha, 0x709a,
"Unable to program nvram address=%x data=%x.\n",
naddr, *dwptr);
break;
}
}
/* Enable NVRAM write-protection. */
qla24xx_write_flash_dword(ha, nvram_conf_addr(ha, 0x101), 0x8c);
/* Disable flash write. */
wrt_reg_dword(®->ctrl_status,
rd_reg_dword(®->ctrl_status) & ~CSRX_FLASH_ENABLE);
rd_reg_dword(®->ctrl_status); /* PCI Posting. */
return ret;
}
uint8_t *
qla25xx_read_nvram_data(scsi_qla_host_t *vha, void *buf, uint32_t naddr,
uint32_t bytes)
{
struct qla_hw_data *ha = vha->hw;
uint32_t *dwptr = buf;
uint32_t i;
/* Dword reads to flash. */
naddr = flash_data_addr(ha, ha->flt_region_vpd_nvram | naddr);
bytes >>= 2;
for (i = 0; i < bytes; i++, naddr++, dwptr++) {
if (qla24xx_read_flash_dword(ha, naddr, dwptr))
break;
cpu_to_le32s(dwptr);
}
return buf;
}
#define RMW_BUFFER_SIZE (64 * 1024)
int
qla25xx_write_nvram_data(scsi_qla_host_t *vha, void *buf, uint32_t naddr,
uint32_t bytes)
{
struct qla_hw_data *ha = vha->hw;
uint8_t *dbuf = vmalloc(RMW_BUFFER_SIZE);
if (!dbuf)
return QLA_MEMORY_ALLOC_FAILED;
ha->isp_ops->read_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2,
RMW_BUFFER_SIZE);
memcpy(dbuf + (naddr << 2), buf, bytes);
ha->isp_ops->write_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2,
RMW_BUFFER_SIZE);
vfree(dbuf);
return QLA_SUCCESS;
}
static inline void
qla2x00_flip_colors(struct qla_hw_data *ha, uint16_t *pflags)
{
if (IS_QLA2322(ha)) {
/* Flip all colors. */
if (ha->beacon_color_state == QLA_LED_ALL_ON) {
/* Turn off. */
ha->beacon_color_state = 0;
*pflags = GPIO_LED_ALL_OFF;
} else {
/* Turn on. */
ha->beacon_color_state = QLA_LED_ALL_ON;
*pflags = GPIO_LED_RGA_ON;
}
} else {
/* Flip green led only. */
if (ha->beacon_color_state == QLA_LED_GRN_ON) {
/* Turn off. */
ha->beacon_color_state = 0;
*pflags = GPIO_LED_GREEN_OFF_AMBER_OFF;
} else {
/* Turn on. */
ha->beacon_color_state = QLA_LED_GRN_ON;
*pflags = GPIO_LED_GREEN_ON_AMBER_OFF;
}
}
}
#define PIO_REG(h, r) ((h)->pio_address + offsetof(struct device_reg_2xxx, r))
void
qla2x00_beacon_blink(struct scsi_qla_host *vha)
{
uint16_t gpio_enable;
uint16_t gpio_data;
uint16_t led_color = 0;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
if (IS_P3P_TYPE(ha))
return;
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Save the Original GPIOE. */
if (ha->pio_address) {
gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
} else {
gpio_enable = rd_reg_word(®->gpioe);
gpio_data = rd_reg_word(®->gpiod);
}
/* Set the modified gpio_enable values */
gpio_enable |= GPIO_LED_MASK;
if (ha->pio_address) {
WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
} else {
wrt_reg_word(®->gpioe, gpio_enable);
rd_reg_word(®->gpioe);
}
qla2x00_flip_colors(ha, &led_color);
/* Clear out any previously set LED color. */
gpio_data &= ~GPIO_LED_MASK;
/* Set the new input LED color to GPIOD. */
gpio_data |= led_color;
/* Set the modified gpio_data values */
if (ha->pio_address) {
WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
} else {
wrt_reg_word(®->gpiod, gpio_data);
rd_reg_word(®->gpiod);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
int
qla2x00_beacon_on(struct scsi_qla_host *vha)
{
uint16_t gpio_enable;
uint16_t gpio_data;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
ha->fw_options[1] |= FO1_DISABLE_GPIO6_7;
if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x709b,
"Unable to update fw options (beacon on).\n");
return QLA_FUNCTION_FAILED;
}
/* Turn off LEDs. */
spin_lock_irqsave(&ha->hardware_lock, flags);
if (ha->pio_address) {
gpio_enable = RD_REG_WORD_PIO(PIO_REG(ha, gpioe));
gpio_data = RD_REG_WORD_PIO(PIO_REG(ha, gpiod));
} else {
gpio_enable = rd_reg_word(®->gpioe);
gpio_data = rd_reg_word(®->gpiod);
}
gpio_enable |= GPIO_LED_MASK;
/* Set the modified gpio_enable values. */
if (ha->pio_address) {
WRT_REG_WORD_PIO(PIO_REG(ha, gpioe), gpio_enable);
} else {
wrt_reg_word(®->gpioe, gpio_enable);
rd_reg_word(®->gpioe);
}
/* Clear out previously set LED colour. */
gpio_data &= ~GPIO_LED_MASK;
if (ha->pio_address) {
WRT_REG_WORD_PIO(PIO_REG(ha, gpiod), gpio_data);
} else {
wrt_reg_word(®->gpiod, gpio_data);
rd_reg_word(®->gpiod);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/*
* Let the per HBA timer kick off the blinking process based on
* the following flags. No need to do anything else now.
*/
ha->beacon_blink_led = 1;
ha->beacon_color_state = 0;
return QLA_SUCCESS;
}
int
qla2x00_beacon_off(struct scsi_qla_host *vha)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
ha->beacon_blink_led = 0;
/* Set the on flag so when it gets flipped it will be off. */
if (IS_QLA2322(ha))
ha->beacon_color_state = QLA_LED_ALL_ON;
else
ha->beacon_color_state = QLA_LED_GRN_ON;
ha->isp_ops->beacon_blink(vha); /* This turns green LED off */
ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
ha->fw_options[1] &= ~FO1_DISABLE_GPIO6_7;
rval = qla2x00_set_fw_options(vha, ha->fw_options);
if (rval != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0x709c,
"Unable to update fw options (beacon off).\n");
return rval;
}
static inline void
qla24xx_flip_colors(struct qla_hw_data *ha, uint16_t *pflags)
{
/* Flip all colors. */
if (ha->beacon_color_state == QLA_LED_ALL_ON) {
/* Turn off. */
ha->beacon_color_state = 0;
*pflags = 0;
} else {
/* Turn on. */
ha->beacon_color_state = QLA_LED_ALL_ON;
*pflags = GPDX_LED_YELLOW_ON | GPDX_LED_AMBER_ON;
}
}
void
qla24xx_beacon_blink(struct scsi_qla_host *vha)
{
uint16_t led_color = 0;
uint32_t gpio_data;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
/* Save the Original GPIOD. */
spin_lock_irqsave(&ha->hardware_lock, flags);
gpio_data = rd_reg_dword(®->gpiod);
/* Enable the gpio_data reg for update. */
gpio_data |= GPDX_LED_UPDATE_MASK;
wrt_reg_dword(®->gpiod, gpio_data);
gpio_data = rd_reg_dword(®->gpiod);
/* Set the color bits. */
qla24xx_flip_colors(ha, &led_color);
/* Clear out any previously set LED color. */
gpio_data &= ~GPDX_LED_COLOR_MASK;
/* Set the new input LED color to GPIOD. */
gpio_data |= led_color;
/* Set the modified gpio_data values. */
wrt_reg_dword(®->gpiod, gpio_data);
gpio_data = rd_reg_dword(®->gpiod);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static uint32_t
qla83xx_select_led_port(struct qla_hw_data *ha)
{
uint32_t led_select_value = 0;
if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
goto out;
if (ha->port_no == 0)
led_select_value = QLA83XX_LED_PORT0;
else
led_select_value = QLA83XX_LED_PORT1;
out:
return led_select_value;
}
void
qla83xx_beacon_blink(struct scsi_qla_host *vha)
{
uint32_t led_select_value;
struct qla_hw_data *ha = vha->hw;
uint16_t led_cfg[6];
uint16_t orig_led_cfg[6];
uint32_t led_10_value, led_43_value;
if (!IS_QLA83XX(ha) && !IS_QLA81XX(ha) && !IS_QLA27XX(ha) &&
!IS_QLA28XX(ha))
return;
if (!ha->beacon_blink_led)
return;
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
qla2x00_write_ram_word(vha, 0x1003, 0x40000230);
qla2x00_write_ram_word(vha, 0x1004, 0x40000230);
} else if (IS_QLA2031(ha)) {
led_select_value = qla83xx_select_led_port(ha);
qla83xx_wr_reg(vha, led_select_value, 0x40000230);
qla83xx_wr_reg(vha, led_select_value + 4, 0x40000230);
} else if (IS_QLA8031(ha)) {
led_select_value = qla83xx_select_led_port(ha);
qla83xx_rd_reg(vha, led_select_value, &led_10_value);
qla83xx_rd_reg(vha, led_select_value + 0x10, &led_43_value);
qla83xx_wr_reg(vha, led_select_value, 0x01f44000);
msleep(500);
qla83xx_wr_reg(vha, led_select_value, 0x400001f4);
msleep(1000);
qla83xx_wr_reg(vha, led_select_value, led_10_value);
qla83xx_wr_reg(vha, led_select_value + 0x10, led_43_value);
} else if (IS_QLA81XX(ha)) {
int rval;
/* Save Current */
rval = qla81xx_get_led_config(vha, orig_led_cfg);
/* Do the blink */
if (rval == QLA_SUCCESS) {
if (IS_QLA81XX(ha)) {
led_cfg[0] = 0x4000;
led_cfg[1] = 0x2000;
led_cfg[2] = 0;
led_cfg[3] = 0;
led_cfg[4] = 0;
led_cfg[5] = 0;
} else {
led_cfg[0] = 0x4000;
led_cfg[1] = 0x4000;
led_cfg[2] = 0x4000;
led_cfg[3] = 0x2000;
led_cfg[4] = 0;
led_cfg[5] = 0x2000;
}
rval = qla81xx_set_led_config(vha, led_cfg);
msleep(1000);
if (IS_QLA81XX(ha)) {
led_cfg[0] = 0x4000;
led_cfg[1] = 0x2000;
led_cfg[2] = 0;
} else {
led_cfg[0] = 0x4000;
led_cfg[1] = 0x2000;
led_cfg[2] = 0x4000;
led_cfg[3] = 0x4000;
led_cfg[4] = 0;
led_cfg[5] = 0x2000;
}
rval = qla81xx_set_led_config(vha, led_cfg);
}
/* On exit, restore original (presumes no status change) */
qla81xx_set_led_config(vha, orig_led_cfg);
}
}
int
qla24xx_beacon_on(struct scsi_qla_host *vha)
{
uint32_t gpio_data;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
if (IS_P3P_TYPE(ha))
return QLA_SUCCESS;
if (IS_QLA8031(ha) || IS_QLA81XX(ha))
goto skip_gpio; /* let blink handle it */
if (ha->beacon_blink_led == 0) {
/* Enable firmware for update */
ha->fw_options[1] |= ADD_FO1_DISABLE_GPIO_LED_CTRL;
if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
if (qla2x00_get_fw_options(vha, ha->fw_options) !=
QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7009,
"Unable to update fw options (beacon on).\n");
return QLA_FUNCTION_FAILED;
}
if (IS_QLA2031(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
goto skip_gpio;
spin_lock_irqsave(&ha->hardware_lock, flags);
gpio_data = rd_reg_dword(®->gpiod);
/* Enable the gpio_data reg for update. */
gpio_data |= GPDX_LED_UPDATE_MASK;
wrt_reg_dword(®->gpiod, gpio_data);
rd_reg_dword(®->gpiod);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
/* So all colors blink together. */
ha->beacon_color_state = 0;
skip_gpio:
/* Let the per HBA timer kick off the blinking process. */
ha->beacon_blink_led = 1;
return QLA_SUCCESS;
}
int
qla24xx_beacon_off(struct scsi_qla_host *vha)
{
uint32_t gpio_data;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
if (IS_P3P_TYPE(ha))
return QLA_SUCCESS;
if (!ha->flags.fw_started)
return QLA_SUCCESS;
ha->beacon_blink_led = 0;
if (IS_QLA2031(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
goto set_fw_options;
if (IS_QLA8031(ha) || IS_QLA81XX(ha))
return QLA_SUCCESS;
ha->beacon_color_state = QLA_LED_ALL_ON;
ha->isp_ops->beacon_blink(vha); /* Will flip to all off. */
/* Give control back to firmware. */
spin_lock_irqsave(&ha->hardware_lock, flags);
gpio_data = rd_reg_dword(®->gpiod);
/* Disable the gpio_data reg for update. */
gpio_data &= ~GPDX_LED_UPDATE_MASK;
wrt_reg_dword(®->gpiod, gpio_data);
rd_reg_dword(®->gpiod);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
set_fw_options:
ha->fw_options[1] &= ~ADD_FO1_DISABLE_GPIO_LED_CTRL;
if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x704d,
"Unable to update fw options (beacon on).\n");
return QLA_FUNCTION_FAILED;
}
if (qla2x00_get_fw_options(vha, ha->fw_options) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x704e,
"Unable to update fw options (beacon on).\n");
return QLA_FUNCTION_FAILED;
}
return QLA_SUCCESS;
}
/*
* Flash support routines
*/
/**
* qla2x00_flash_enable() - Setup flash for reading and writing.
* @ha: HA context
*/
static void
qla2x00_flash_enable(struct qla_hw_data *ha)
{
uint16_t data;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
data = rd_reg_word(®->ctrl_status);
data |= CSR_FLASH_ENABLE;
wrt_reg_word(®->ctrl_status, data);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
}
/**
* qla2x00_flash_disable() - Disable flash and allow RISC to run.
* @ha: HA context
*/
static void
qla2x00_flash_disable(struct qla_hw_data *ha)
{
uint16_t data;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
data = rd_reg_word(®->ctrl_status);
data &= ~(CSR_FLASH_ENABLE);
wrt_reg_word(®->ctrl_status, data);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
}
/**
* qla2x00_read_flash_byte() - Reads a byte from flash
* @ha: HA context
* @addr: Address in flash to read
*
* A word is read from the chip, but, only the lower byte is valid.
*
* Returns the byte read from flash @addr.
*/
static uint8_t
qla2x00_read_flash_byte(struct qla_hw_data *ha, uint32_t addr)
{
uint16_t data;
uint16_t bank_select;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
bank_select = rd_reg_word(®->ctrl_status);
if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
/* Specify 64K address range: */
/* clear out Module Select and Flash Address bits [19:16]. */
bank_select &= ~0xf8;
bank_select |= addr >> 12 & 0xf0;
bank_select |= CSR_FLASH_64K_BANK;
wrt_reg_word(®->ctrl_status, bank_select);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
wrt_reg_word(®->flash_address, (uint16_t)addr);
data = rd_reg_word(®->flash_data);
return (uint8_t)data;
}
/* Setup bit 16 of flash address. */
if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
bank_select |= CSR_FLASH_64K_BANK;
wrt_reg_word(®->ctrl_status, bank_select);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
} else if (((addr & BIT_16) == 0) &&
(bank_select & CSR_FLASH_64K_BANK)) {
bank_select &= ~(CSR_FLASH_64K_BANK);
wrt_reg_word(®->ctrl_status, bank_select);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
}
/* Always perform IO mapped accesses to the FLASH registers. */
if (ha->pio_address) {
uint16_t data2;
WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
do {
data = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
barrier();
cpu_relax();
data2 = RD_REG_WORD_PIO(PIO_REG(ha, flash_data));
} while (data != data2);
} else {
wrt_reg_word(®->flash_address, (uint16_t)addr);
data = qla2x00_debounce_register(®->flash_data);
}
return (uint8_t)data;
}
/**
* qla2x00_write_flash_byte() - Write a byte to flash
* @ha: HA context
* @addr: Address in flash to write
* @data: Data to write
*/
static void
qla2x00_write_flash_byte(struct qla_hw_data *ha, uint32_t addr, uint8_t data)
{
uint16_t bank_select;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
bank_select = rd_reg_word(®->ctrl_status);
if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
/* Specify 64K address range: */
/* clear out Module Select and Flash Address bits [19:16]. */
bank_select &= ~0xf8;
bank_select |= addr >> 12 & 0xf0;
bank_select |= CSR_FLASH_64K_BANK;
wrt_reg_word(®->ctrl_status, bank_select);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
wrt_reg_word(®->flash_address, (uint16_t)addr);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
wrt_reg_word(®->flash_data, (uint16_t)data);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
return;
}
/* Setup bit 16 of flash address. */
if ((addr & BIT_16) && ((bank_select & CSR_FLASH_64K_BANK) == 0)) {
bank_select |= CSR_FLASH_64K_BANK;
wrt_reg_word(®->ctrl_status, bank_select);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
} else if (((addr & BIT_16) == 0) &&
(bank_select & CSR_FLASH_64K_BANK)) {
bank_select &= ~(CSR_FLASH_64K_BANK);
wrt_reg_word(®->ctrl_status, bank_select);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
}
/* Always perform IO mapped accesses to the FLASH registers. */
if (ha->pio_address) {
WRT_REG_WORD_PIO(PIO_REG(ha, flash_address), (uint16_t)addr);
WRT_REG_WORD_PIO(PIO_REG(ha, flash_data), (uint16_t)data);
} else {
wrt_reg_word(®->flash_address, (uint16_t)addr);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
wrt_reg_word(®->flash_data, (uint16_t)data);
rd_reg_word(®->ctrl_status); /* PCI Posting. */
}
}
/**
* qla2x00_poll_flash() - Polls flash for completion.
* @ha: HA context
* @addr: Address in flash to poll
* @poll_data: Data to be polled
* @man_id: Flash manufacturer ID
* @flash_id: Flash ID
*
* This function polls the device until bit 7 of what is read matches data
* bit 7 or until data bit 5 becomes a 1. If that hapens, the flash ROM timed
* out (a fatal error). The flash book recommeds reading bit 7 again after
* reading bit 5 as a 1.
*
* Returns 0 on success, else non-zero.
*/
static int
qla2x00_poll_flash(struct qla_hw_data *ha, uint32_t addr, uint8_t poll_data,
uint8_t man_id, uint8_t flash_id)
{
int status;
uint8_t flash_data;
uint32_t cnt;
status = 1;
/* Wait for 30 seconds for command to finish. */
poll_data &= BIT_7;
for (cnt = 3000000; cnt; cnt--) {
flash_data = qla2x00_read_flash_byte(ha, addr);
if ((flash_data & BIT_7) == poll_data) {
status = 0;
break;
}
if (man_id != 0x40 && man_id != 0xda) {
if ((flash_data & BIT_5) && cnt > 2)
cnt = 2;
}
udelay(10);
barrier();
cond_resched();
}
return status;
}
/**
* qla2x00_program_flash_address() - Programs a flash address
* @ha: HA context
* @addr: Address in flash to program
* @data: Data to be written in flash
* @man_id: Flash manufacturer ID
* @flash_id: Flash ID
*
* Returns 0 on success, else non-zero.
*/
static int
qla2x00_program_flash_address(struct qla_hw_data *ha, uint32_t addr,
uint8_t data, uint8_t man_id, uint8_t flash_id)
{
/* Write Program Command Sequence. */
if (IS_OEM_001(ha)) {
qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
qla2x00_write_flash_byte(ha, 0x555, 0x55);
qla2x00_write_flash_byte(ha, 0xaaa, 0xa0);
qla2x00_write_flash_byte(ha, addr, data);
} else {
if (man_id == 0xda && flash_id == 0xc1) {
qla2x00_write_flash_byte(ha, addr, data);
if (addr & 0x7e)
return 0;
} else {
qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
qla2x00_write_flash_byte(ha, 0x5555, 0xa0);
qla2x00_write_flash_byte(ha, addr, data);
}
}
udelay(150);
/* Wait for write to complete. */
return qla2x00_poll_flash(ha, addr, data, man_id, flash_id);
}
/**
* qla2x00_erase_flash() - Erase the flash.
* @ha: HA context
* @man_id: Flash manufacturer ID
* @flash_id: Flash ID
*
* Returns 0 on success, else non-zero.
*/
static int
qla2x00_erase_flash(struct qla_hw_data *ha, uint8_t man_id, uint8_t flash_id)
{
/* Individual Sector Erase Command Sequence */
if (IS_OEM_001(ha)) {
qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
qla2x00_write_flash_byte(ha, 0x555, 0x55);
qla2x00_write_flash_byte(ha, 0xaaa, 0x80);
qla2x00_write_flash_byte(ha, 0xaaa, 0xaa);
qla2x00_write_flash_byte(ha, 0x555, 0x55);
qla2x00_write_flash_byte(ha, 0xaaa, 0x10);
} else {
qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
qla2x00_write_flash_byte(ha, 0x5555, 0x80);
qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
qla2x00_write_flash_byte(ha, 0x5555, 0x10);
}
udelay(150);
/* Wait for erase to complete. */
return qla2x00_poll_flash(ha, 0x00, 0x80, man_id, flash_id);
}
/**
* qla2x00_erase_flash_sector() - Erase a flash sector.
* @ha: HA context
* @addr: Flash sector to erase
* @sec_mask: Sector address mask
* @man_id: Flash manufacturer ID
* @flash_id: Flash ID
*
* Returns 0 on success, else non-zero.
*/
static int
qla2x00_erase_flash_sector(struct qla_hw_data *ha, uint32_t addr,
uint32_t sec_mask, uint8_t man_id, uint8_t flash_id)
{
/* Individual Sector Erase Command Sequence */
qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
qla2x00_write_flash_byte(ha, 0x5555, 0x80);
qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
if (man_id == 0x1f && flash_id == 0x13)
qla2x00_write_flash_byte(ha, addr & sec_mask, 0x10);
else
qla2x00_write_flash_byte(ha, addr & sec_mask, 0x30);
udelay(150);
/* Wait for erase to complete. */
return qla2x00_poll_flash(ha, addr, 0x80, man_id, flash_id);
}
/**
* qla2x00_get_flash_manufacturer() - Read manufacturer ID from flash chip.
* @ha: host adapter
* @man_id: Flash manufacturer ID
* @flash_id: Flash ID
*/
static void
qla2x00_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id,
uint8_t *flash_id)
{
qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
qla2x00_write_flash_byte(ha, 0x5555, 0x90);
*man_id = qla2x00_read_flash_byte(ha, 0x0000);
*flash_id = qla2x00_read_flash_byte(ha, 0x0001);
qla2x00_write_flash_byte(ha, 0x5555, 0xaa);
qla2x00_write_flash_byte(ha, 0x2aaa, 0x55);
qla2x00_write_flash_byte(ha, 0x5555, 0xf0);
}
static void
qla2x00_read_flash_data(struct qla_hw_data *ha, uint8_t *tmp_buf,
uint32_t saddr, uint32_t length)
{
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
uint32_t midpoint, ilength;
uint8_t data;
midpoint = length / 2;
wrt_reg_word(®->nvram, 0);
rd_reg_word(®->nvram);
for (ilength = 0; ilength < length; saddr++, ilength++, tmp_buf++) {
if (ilength == midpoint) {
wrt_reg_word(®->nvram, NVR_SELECT);
rd_reg_word(®->nvram);
}
data = qla2x00_read_flash_byte(ha, saddr);
if (saddr % 100)
udelay(10);
*tmp_buf = data;
cond_resched();
}
}
static inline void
qla2x00_suspend_hba(struct scsi_qla_host *vha)
{
int cnt;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
/* Suspend HBA. */
scsi_block_requests(vha->host);
ha->isp_ops->disable_intrs(ha);
set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
/* Pause RISC. */
spin_lock_irqsave(&ha->hardware_lock, flags);
wrt_reg_word(®->hccr, HCCR_PAUSE_RISC);
rd_reg_word(®->hccr);
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
for (cnt = 0; cnt < 30000; cnt++) {
if ((rd_reg_word(®->hccr) & HCCR_RISC_PAUSE) != 0)
break;
udelay(100);
}
} else {
udelay(10);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static inline void
qla2x00_resume_hba(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
/* Resume HBA. */
clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_chip_reset(vha);
scsi_unblock_requests(vha->host);
}
void *
qla2x00_read_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
uint32_t addr, midpoint;
uint8_t *data;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
/* Suspend HBA. */
qla2x00_suspend_hba(vha);
/* Go with read. */
midpoint = ha->optrom_size / 2;
qla2x00_flash_enable(ha);
wrt_reg_word(®->nvram, 0);
rd_reg_word(®->nvram); /* PCI Posting. */
for (addr = offset, data = buf; addr < length; addr++, data++) {
if (addr == midpoint) {
wrt_reg_word(®->nvram, NVR_SELECT);
rd_reg_word(®->nvram); /* PCI Posting. */
}
*data = qla2x00_read_flash_byte(ha, addr);
}
qla2x00_flash_disable(ha);
/* Resume HBA. */
qla2x00_resume_hba(vha);
return buf;
}
int
qla2x00_write_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
int rval;
uint8_t man_id, flash_id, sec_number, *data;
uint16_t wd;
uint32_t addr, liter, sec_mask, rest_addr;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
/* Suspend HBA. */
qla2x00_suspend_hba(vha);
rval = QLA_SUCCESS;
sec_number = 0;
/* Reset ISP chip. */
wrt_reg_word(®->ctrl_status, CSR_ISP_SOFT_RESET);
pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
/* Go with write. */
qla2x00_flash_enable(ha);
do { /* Loop once to provide quick error exit */
/* Structure of flash memory based on manufacturer */
if (IS_OEM_001(ha)) {
/* OEM variant with special flash part. */
man_id = flash_id = 0;
rest_addr = 0xffff;
sec_mask = 0x10000;
goto update_flash;
}
qla2x00_get_flash_manufacturer(ha, &man_id, &flash_id);
switch (man_id) {
case 0x20: /* ST flash. */
if (flash_id == 0xd2 || flash_id == 0xe3) {
/*
* ST m29w008at part - 64kb sector size with
* 32kb,8kb,8kb,16kb sectors at memory address
* 0xf0000.
*/
rest_addr = 0xffff;
sec_mask = 0x10000;
break;
}
/*
* ST m29w010b part - 16kb sector size
* Default to 16kb sectors
*/
rest_addr = 0x3fff;
sec_mask = 0x1c000;
break;
case 0x40: /* Mostel flash. */
/* Mostel v29c51001 part - 512 byte sector size. */
rest_addr = 0x1ff;
sec_mask = 0x1fe00;
break;
case 0xbf: /* SST flash. */
/* SST39sf10 part - 4kb sector size. */
rest_addr = 0xfff;
sec_mask = 0x1f000;
break;
case 0xda: /* Winbond flash. */
/* Winbond W29EE011 part - 256 byte sector size. */
rest_addr = 0x7f;
sec_mask = 0x1ff80;
break;
case 0xc2: /* Macronix flash. */
/* 64k sector size. */
if (flash_id == 0x38 || flash_id == 0x4f) {
rest_addr = 0xffff;
sec_mask = 0x10000;
break;
}
fallthrough;
case 0x1f: /* Atmel flash. */
/* 512k sector size. */
if (flash_id == 0x13) {
rest_addr = 0x7fffffff;
sec_mask = 0x80000000;
break;
}
fallthrough;
case 0x01: /* AMD flash. */
if (flash_id == 0x38 || flash_id == 0x40 ||
flash_id == 0x4f) {
/* Am29LV081 part - 64kb sector size. */
/* Am29LV002BT part - 64kb sector size. */
rest_addr = 0xffff;
sec_mask = 0x10000;
break;
} else if (flash_id == 0x3e) {
/*
* Am29LV008b part - 64kb sector size with
* 32kb,8kb,8kb,16kb sector at memory address
* h0xf0000.
*/
rest_addr = 0xffff;
sec_mask = 0x10000;
break;
} else if (flash_id == 0x20 || flash_id == 0x6e) {
/*
* Am29LV010 part or AM29f010 - 16kb sector
* size.
*/
rest_addr = 0x3fff;
sec_mask = 0x1c000;
break;
} else if (flash_id == 0x6d) {
/* Am29LV001 part - 8kb sector size. */
rest_addr = 0x1fff;
sec_mask = 0x1e000;
break;
}
fallthrough;
default:
/* Default to 16 kb sector size. */
rest_addr = 0x3fff;
sec_mask = 0x1c000;
break;
}
update_flash:
if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
if (qla2x00_erase_flash(ha, man_id, flash_id)) {
rval = QLA_FUNCTION_FAILED;
break;
}
}
for (addr = offset, liter = 0; liter < length; liter++,
addr++) {
data = buf + liter;
/* Are we at the beginning of a sector? */
if ((addr & rest_addr) == 0) {
if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
if (addr >= 0x10000UL) {
if (((addr >> 12) & 0xf0) &&
((man_id == 0x01 &&
flash_id == 0x3e) ||
(man_id == 0x20 &&
flash_id == 0xd2))) {
sec_number++;
if (sec_number == 1) {
rest_addr =
0x7fff;
sec_mask =
0x18000;
} else if (
sec_number == 2 ||
sec_number == 3) {
rest_addr =
0x1fff;
sec_mask =
0x1e000;
} else if (
sec_number == 4) {
rest_addr =
0x3fff;
sec_mask =
0x1c000;
}
}
}
} else if (addr == ha->optrom_size / 2) {
wrt_reg_word(®->nvram, NVR_SELECT);
rd_reg_word(®->nvram);
}
if (flash_id == 0xda && man_id == 0xc1) {
qla2x00_write_flash_byte(ha, 0x5555,
0xaa);
qla2x00_write_flash_byte(ha, 0x2aaa,
0x55);
qla2x00_write_flash_byte(ha, 0x5555,
0xa0);
} else if (!IS_QLA2322(ha) && !IS_QLA6322(ha)) {
/* Then erase it */
if (qla2x00_erase_flash_sector(ha,
addr, sec_mask, man_id,
flash_id)) {
rval = QLA_FUNCTION_FAILED;
break;
}
if (man_id == 0x01 && flash_id == 0x6d)
sec_number++;
}
}
if (man_id == 0x01 && flash_id == 0x6d) {
if (sec_number == 1 &&
addr == (rest_addr - 1)) {
rest_addr = 0x0fff;
sec_mask = 0x1f000;
} else if (sec_number == 3 && (addr & 0x7ffe)) {
rest_addr = 0x3fff;
sec_mask = 0x1c000;
}
}
if (qla2x00_program_flash_address(ha, addr, *data,
man_id, flash_id)) {
rval = QLA_FUNCTION_FAILED;
break;
}
cond_resched();
}
} while (0);
qla2x00_flash_disable(ha);
/* Resume HBA. */
qla2x00_resume_hba(vha);
return rval;
}
void *
qla24xx_read_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
struct qla_hw_data *ha = vha->hw;
/* Suspend HBA. */
scsi_block_requests(vha->host);
set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
/* Go with read. */
qla24xx_read_flash_data(vha, buf, offset >> 2, length >> 2);
/* Resume HBA. */
clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
scsi_unblock_requests(vha->host);
return buf;
}
static int
qla28xx_extract_sfub_and_verify(struct scsi_qla_host *vha, __le32 *buf,
uint32_t len, uint32_t buf_size_without_sfub, uint8_t *sfub_buf)
{
uint32_t check_sum = 0;
__le32 *p;
int i;
p = buf + buf_size_without_sfub;
/* Extract SFUB from end of file */
memcpy(sfub_buf, (uint8_t *)p,
sizeof(struct secure_flash_update_block));
for (i = 0; i < (sizeof(struct secure_flash_update_block) >> 2); i++)
check_sum += le32_to_cpu(p[i]);
check_sum = (~check_sum) + 1;
if (check_sum != le32_to_cpu(p[i])) {
ql_log(ql_log_warn, vha, 0x7097,
"SFUB checksum failed, 0x%x, 0x%x\n",
check_sum, le32_to_cpu(p[i]));
return QLA_COMMAND_ERROR;
}
return QLA_SUCCESS;
}
static int
qla28xx_get_flash_region(struct scsi_qla_host *vha, uint32_t start,
struct qla_flt_region *region)
{
struct qla_hw_data *ha = vha->hw;
struct qla_flt_header *flt = ha->flt;
struct qla_flt_region *flt_reg = &flt->region[0];
uint16_t cnt;
int rval = QLA_FUNCTION_FAILED;
if (!ha->flt)
return QLA_FUNCTION_FAILED;
cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
for (; cnt; cnt--, flt_reg++) {
if (le32_to_cpu(flt_reg->start) == start) {
memcpy((uint8_t *)region, flt_reg,
sizeof(struct qla_flt_region));
rval = QLA_SUCCESS;
break;
}
}
return rval;
}
static int
qla28xx_write_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
uint32_t dwords)
{
struct qla_hw_data *ha = vha->hw;
ulong liter;
ulong dburst = OPTROM_BURST_DWORDS; /* burst size in dwords */
uint32_t sec_mask, rest_addr, fdata;
void *optrom = NULL;
dma_addr_t optrom_dma;
int rval, ret;
struct secure_flash_update_block *sfub;
dma_addr_t sfub_dma;
uint32_t offset = faddr << 2;
uint32_t buf_size_without_sfub = 0;
struct qla_flt_region region;
bool reset_to_rom = false;
uint32_t risc_size, risc_attr = 0;
__be32 *fw_array = NULL;
/* Retrieve region info - must be a start address passed in */
rval = qla28xx_get_flash_region(vha, offset, ®ion);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xffff,
"Invalid address %x - not a region start address\n",
offset);
goto done;
}
/* Allocate dma buffer for burst write */
optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
&optrom_dma, GFP_KERNEL);
if (!optrom) {
ql_log(ql_log_warn, vha, 0x7095,
"Failed allocate burst (%x bytes)\n", OPTROM_BURST_SIZE);
rval = QLA_COMMAND_ERROR;
goto done;
}
/*
* If adapter supports secure flash and region is secure
* extract secure flash update block (SFUB) and verify
*/
if (ha->flags.secure_adapter && region.attribute) {
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0xffff,
"Region %x is secure\n", le16_to_cpu(region.code));
switch (le16_to_cpu(region.code)) {
case FLT_REG_FW:
case FLT_REG_FW_SEC_27XX:
case FLT_REG_MPI_PRI_28XX:
case FLT_REG_MPI_SEC_28XX:
fw_array = (__force __be32 *)dwptr;
/* 1st fw array */
risc_size = be32_to_cpu(fw_array[3]);
risc_attr = be32_to_cpu(fw_array[9]);
buf_size_without_sfub = risc_size;
fw_array += risc_size;
/* 2nd fw array */
risc_size = be32_to_cpu(fw_array[3]);
buf_size_without_sfub += risc_size;
fw_array += risc_size;
/* 1st dump template */
risc_size = be32_to_cpu(fw_array[2]);
/* skip header and ignore checksum */
buf_size_without_sfub += risc_size;
fw_array += risc_size;
if (risc_attr & BIT_9) {
/* 2nd dump template */
risc_size = be32_to_cpu(fw_array[2]);
/* skip header and ignore checksum */
buf_size_without_sfub += risc_size;
fw_array += risc_size;
}
break;
case FLT_REG_PEP_PRI_28XX:
case FLT_REG_PEP_SEC_28XX:
fw_array = (__force __be32 *)dwptr;
/* 1st fw array */
risc_size = be32_to_cpu(fw_array[3]);
risc_attr = be32_to_cpu(fw_array[9]);
buf_size_without_sfub = risc_size;
fw_array += risc_size;
break;
default:
ql_log(ql_log_warn + ql_dbg_verbose, vha,
0xffff, "Secure region %x not supported\n",
le16_to_cpu(region.code));
rval = QLA_COMMAND_ERROR;
goto done;
}
sfub = dma_alloc_coherent(&ha->pdev->dev,
sizeof(struct secure_flash_update_block), &sfub_dma,
GFP_KERNEL);
if (!sfub) {
ql_log(ql_log_warn, vha, 0xffff,
"Unable to allocate memory for SFUB\n");
rval = QLA_COMMAND_ERROR;
goto done;
}
rval = qla28xx_extract_sfub_and_verify(vha, (__le32 *)dwptr,
dwords, buf_size_without_sfub, (uint8_t *)sfub);
if (rval != QLA_SUCCESS)
goto done;
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0xffff,
"SFUB extract and verify successful\n");
}
rest_addr = (ha->fdt_block_size >> 2) - 1;
sec_mask = ~rest_addr;
/* Lock semaphore */
rval = qla81xx_fac_semaphore_access(vha, FAC_SEMAPHORE_LOCK);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xffff,
"Unable to lock flash semaphore.");
goto done;
}
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0x7095,
"Unprotect flash...\n");
rval = qla24xx_unprotect_flash(vha);
if (rval) {
qla81xx_fac_semaphore_access(vha, FAC_SEMAPHORE_UNLOCK);
ql_log(ql_log_warn, vha, 0x7096, "Failed unprotect flash\n");
goto done;
}
for (liter = 0; liter < dwords; liter++, faddr++) {
fdata = (faddr & sec_mask) << 2;
/* If start of sector */
if (!(faddr & rest_addr)) {
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0x7095,
"Erase sector %#x...\n", faddr);
rval = qla24xx_erase_sector(vha, fdata);
if (rval) {
ql_dbg(ql_dbg_user, vha, 0x7007,
"Failed erase sector %#x\n", faddr);
goto write_protect;
}
}
}
if (ha->flags.secure_adapter) {
/*
* If adapter supports secure flash but FW doesn't,
* disable write protect, release semaphore and reset
* chip to execute ROM code in order to update region securely
*/
if (!ha->flags.secure_fw) {
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0xffff,
"Disable Write and Release Semaphore.");
rval = qla24xx_protect_flash(vha);
if (rval != QLA_SUCCESS) {
qla81xx_fac_semaphore_access(vha,
FAC_SEMAPHORE_UNLOCK);
ql_log(ql_log_warn, vha, 0xffff,
"Unable to protect flash.");
goto done;
}
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0xffff,
"Reset chip to ROM.");
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
set_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
rval = qla2x00_wait_for_chip_reset(vha);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xffff,
"Unable to reset to ROM code.");
goto done;
}
reset_to_rom = true;
ha->flags.fac_supported = 0;
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0xffff,
"Lock Semaphore");
rval = qla2xxx_write_remote_register(vha,
FLASH_SEMAPHORE_REGISTER_ADDR, 0x00020002);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xffff,
"Unable to lock flash semaphore.");
goto done;
}
/* Unprotect flash */
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0xffff,
"Enable Write.");
rval = qla2x00_write_ram_word(vha, 0x7ffd0101, 0);
if (rval) {
ql_log(ql_log_warn, vha, 0x7096,
"Failed unprotect flash\n");
goto done;
}
}
/* If region is secure, send Secure Flash MB Cmd */
if (region.attribute && buf_size_without_sfub) {
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0xffff,
"Sending Secure Flash MB Cmd\n");
rval = qla28xx_secure_flash_update(vha, 0,
le16_to_cpu(region.code),
buf_size_without_sfub, sfub_dma,
sizeof(struct secure_flash_update_block) >> 2);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xffff,
"Secure Flash MB Cmd failed %x.", rval);
goto write_protect;
}
}
}
/* re-init flash offset */
faddr = offset >> 2;
for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) {
fdata = (faddr & sec_mask) << 2;
/* If smaller than a burst remaining */
if (dwords - liter < dburst)
dburst = dwords - liter;
/* Copy to dma buffer */
memcpy(optrom, dwptr, dburst << 2);
/* Burst write */
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0x7095,
"Write burst (%#lx dwords)...\n", dburst);
rval = qla2x00_load_ram(vha, optrom_dma,
flash_data_addr(ha, faddr), dburst);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7097,
"Failed burst write at %x (%p/%#llx)...\n",
flash_data_addr(ha, faddr), optrom,
(u64)optrom_dma);
break;
}
liter += dburst - 1;
faddr += dburst - 1;
dwptr += dburst - 1;
}
write_protect:
ql_log(ql_log_warn + ql_dbg_verbose, vha, 0x7095,
"Protect flash...\n");
ret = qla24xx_protect_flash(vha);
if (ret) {
qla81xx_fac_semaphore_access(vha, FAC_SEMAPHORE_UNLOCK);
ql_log(ql_log_warn, vha, 0x7099,
"Failed protect flash\n");
rval = QLA_COMMAND_ERROR;
}
if (reset_to_rom == true) {
/* Schedule DPC to restart the RISC */
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
ret = qla2x00_wait_for_hba_online(vha);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xffff,
"Adapter did not come out of reset\n");
rval = QLA_COMMAND_ERROR;
}
}
done:
if (optrom)
dma_free_coherent(&ha->pdev->dev,
OPTROM_BURST_SIZE, optrom, optrom_dma);
return rval;
}
int
qla24xx_write_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
int rval;
struct qla_hw_data *ha = vha->hw;
/* Suspend HBA. */
scsi_block_requests(vha->host);
set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
/* Go with write. */
if (IS_QLA28XX(ha))
rval = qla28xx_write_flash_data(vha, buf, offset >> 2,
length >> 2);
else
rval = qla24xx_write_flash_data(vha, buf, offset >> 2,
length >> 2);
clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags);
scsi_unblock_requests(vha->host);
return rval;
}
void *
qla25xx_read_optrom_data(struct scsi_qla_host *vha, void *buf,
uint32_t offset, uint32_t length)
{
int rval;
dma_addr_t optrom_dma;
void *optrom;
uint8_t *pbuf;
uint32_t faddr, left, burst;
struct qla_hw_data *ha = vha->hw;
if (IS_QLA25XX(ha) || IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
IS_QLA27XX(ha) || IS_QLA28XX(ha))
goto try_fast;
if (offset & 0xfff)
goto slow_read;
if (length < OPTROM_BURST_SIZE)
goto slow_read;
try_fast:
if (offset & 0xff)
goto slow_read;
optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
&optrom_dma, GFP_KERNEL);
if (!optrom) {
ql_log(ql_log_warn, vha, 0x00cc,
"Unable to allocate memory for optrom burst read (%x KB).\n",
OPTROM_BURST_SIZE / 1024);
goto slow_read;
}
pbuf = buf;
faddr = offset >> 2;
left = length >> 2;
burst = OPTROM_BURST_DWORDS;
while (left != 0) {
if (burst > left)
burst = left;
rval = qla2x00_dump_ram(vha, optrom_dma,
flash_data_addr(ha, faddr), burst);
if (rval) {
ql_log(ql_log_warn, vha, 0x00f5,
"Unable to burst-read optrom segment (%x/%x/%llx).\n",
rval, flash_data_addr(ha, faddr),
(unsigned long long)optrom_dma);
ql_log(ql_log_warn, vha, 0x00f6,
"Reverting to slow-read.\n");
dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
optrom, optrom_dma);
goto slow_read;
}
memcpy(pbuf, optrom, burst * 4);
left -= burst;
faddr += burst;
pbuf += burst * 4;
}
dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, optrom,
optrom_dma);
return buf;
slow_read:
return qla24xx_read_optrom_data(vha, buf, offset, length);
}
/**
* qla2x00_get_fcode_version() - Determine an FCODE image's version.
* @ha: HA context
* @pcids: Pointer to the FCODE PCI data structure
*
* The process of retrieving the FCODE version information is at best
* described as interesting.
*
* Within the first 100h bytes of the image an ASCII string is present
* which contains several pieces of information including the FCODE
* version. Unfortunately it seems the only reliable way to retrieve
* the version is by scanning for another sentinel within the string,
* the FCODE build date:
*
* ... 2.00.02 10/17/02 ...
*
* Returns QLA_SUCCESS on successful retrieval of version.
*/
static void
qla2x00_get_fcode_version(struct qla_hw_data *ha, uint32_t pcids)
{
int ret = QLA_FUNCTION_FAILED;
uint32_t istart, iend, iter, vend;
uint8_t do_next, rbyte, *vbyte;
memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
/* Skip the PCI data structure. */
istart = pcids +
((qla2x00_read_flash_byte(ha, pcids + 0x0B) << 8) |
qla2x00_read_flash_byte(ha, pcids + 0x0A));
iend = istart + 0x100;
do {
/* Scan for the sentinel date string...eeewww. */
do_next = 0;
iter = istart;
while ((iter < iend) && !do_next) {
iter++;
if (qla2x00_read_flash_byte(ha, iter) == '/') {
if (qla2x00_read_flash_byte(ha, iter + 2) ==
'/')
do_next++;
else if (qla2x00_read_flash_byte(ha,
iter + 3) == '/')
do_next++;
}
}
if (!do_next)
break;
/* Backtrack to previous ' ' (space). */
do_next = 0;
while ((iter > istart) && !do_next) {
iter--;
if (qla2x00_read_flash_byte(ha, iter) == ' ')
do_next++;
}
if (!do_next)
break;
/*
* Mark end of version tag, and find previous ' ' (space) or
* string length (recent FCODE images -- major hack ahead!!!).
*/
vend = iter - 1;
do_next = 0;
while ((iter > istart) && !do_next) {
iter--;
rbyte = qla2x00_read_flash_byte(ha, iter);
if (rbyte == ' ' || rbyte == 0xd || rbyte == 0x10)
do_next++;
}
if (!do_next)
break;
/* Mark beginning of version tag, and copy data. */
iter++;
if ((vend - iter) &&
((vend - iter) < sizeof(ha->fcode_revision))) {
vbyte = ha->fcode_revision;
while (iter <= vend) {
*vbyte++ = qla2x00_read_flash_byte(ha, iter);
iter++;
}
ret = QLA_SUCCESS;
}
} while (0);
if (ret != QLA_SUCCESS)
memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
}
int
qla2x00_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
{
int ret = QLA_SUCCESS;
uint8_t code_type, last_image;
uint32_t pcihdr, pcids;
uint8_t *dbyte;
uint16_t *dcode;
struct qla_hw_data *ha = vha->hw;
if (!ha->pio_address || !mbuf)
return QLA_FUNCTION_FAILED;
memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
qla2x00_flash_enable(ha);
/* Begin with first PCI expansion ROM header. */
pcihdr = 0;
last_image = 1;
do {
/* Verify PCI expansion ROM header. */
if (qla2x00_read_flash_byte(ha, pcihdr) != 0x55 ||
qla2x00_read_flash_byte(ha, pcihdr + 0x01) != 0xaa) {
/* No signature */
ql_log(ql_log_fatal, vha, 0x0050,
"No matching ROM signature.\n");
ret = QLA_FUNCTION_FAILED;
break;
}
/* Locate PCI data structure. */
pcids = pcihdr +
((qla2x00_read_flash_byte(ha, pcihdr + 0x19) << 8) |
qla2x00_read_flash_byte(ha, pcihdr + 0x18));
/* Validate signature of PCI data structure. */
if (qla2x00_read_flash_byte(ha, pcids) != 'P' ||
qla2x00_read_flash_byte(ha, pcids + 0x1) != 'C' ||
qla2x00_read_flash_byte(ha, pcids + 0x2) != 'I' ||
qla2x00_read_flash_byte(ha, pcids + 0x3) != 'R') {
/* Incorrect header. */
ql_log(ql_log_fatal, vha, 0x0051,
"PCI data struct not found pcir_adr=%x.\n", pcids);
ret = QLA_FUNCTION_FAILED;
break;
}
/* Read version */
code_type = qla2x00_read_flash_byte(ha, pcids + 0x14);
switch (code_type) {
case ROM_CODE_TYPE_BIOS:
/* Intel x86, PC-AT compatible. */
ha->bios_revision[0] =
qla2x00_read_flash_byte(ha, pcids + 0x12);
ha->bios_revision[1] =
qla2x00_read_flash_byte(ha, pcids + 0x13);
ql_dbg(ql_dbg_init, vha, 0x0052,
"Read BIOS %d.%d.\n",
ha->bios_revision[1], ha->bios_revision[0]);
break;
case ROM_CODE_TYPE_FCODE:
/* Open Firmware standard for PCI (FCode). */
/* Eeeewww... */
qla2x00_get_fcode_version(ha, pcids);
break;
case ROM_CODE_TYPE_EFI:
/* Extensible Firmware Interface (EFI). */
ha->efi_revision[0] =
qla2x00_read_flash_byte(ha, pcids + 0x12);
ha->efi_revision[1] =
qla2x00_read_flash_byte(ha, pcids + 0x13);
ql_dbg(ql_dbg_init, vha, 0x0053,
"Read EFI %d.%d.\n",
ha->efi_revision[1], ha->efi_revision[0]);
break;
default:
ql_log(ql_log_warn, vha, 0x0054,
"Unrecognized code type %x at pcids %x.\n",
code_type, pcids);
break;
}
last_image = qla2x00_read_flash_byte(ha, pcids + 0x15) & BIT_7;
/* Locate next PCI expansion ROM. */
pcihdr += ((qla2x00_read_flash_byte(ha, pcids + 0x11) << 8) |
qla2x00_read_flash_byte(ha, pcids + 0x10)) * 512;
} while (!last_image);
if (IS_QLA2322(ha)) {
/* Read firmware image information. */
memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
dbyte = mbuf;
memset(dbyte, 0, 8);
dcode = (uint16_t *)dbyte;
qla2x00_read_flash_data(ha, dbyte, ha->flt_region_fw * 4 + 10,
8);
ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010a,
"Dumping fw "
"ver from flash:.\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010b,
dbyte, 32);
if ((dcode[0] == 0xffff && dcode[1] == 0xffff &&
dcode[2] == 0xffff && dcode[3] == 0xffff) ||
(dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
dcode[3] == 0)) {
ql_log(ql_log_warn, vha, 0x0057,
"Unrecognized fw revision at %x.\n",
ha->flt_region_fw * 4);
} else {
/* values are in big endian */
ha->fw_revision[0] = dbyte[0] << 16 | dbyte[1];
ha->fw_revision[1] = dbyte[2] << 16 | dbyte[3];
ha->fw_revision[2] = dbyte[4] << 16 | dbyte[5];
ql_dbg(ql_dbg_init, vha, 0x0058,
"FW Version: "
"%d.%d.%d.\n", ha->fw_revision[0],
ha->fw_revision[1], ha->fw_revision[2]);
}
}
qla2x00_flash_disable(ha);
return ret;
}
int
qla82xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
{
int ret = QLA_SUCCESS;
uint32_t pcihdr, pcids;
uint32_t *dcode = mbuf;
uint8_t *bcode = mbuf;
uint8_t code_type, last_image;
struct qla_hw_data *ha = vha->hw;
if (!mbuf)
return QLA_FUNCTION_FAILED;
memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
/* Begin with first PCI expansion ROM header. */
pcihdr = ha->flt_region_boot << 2;
last_image = 1;
do {
/* Verify PCI expansion ROM header. */
ha->isp_ops->read_optrom(vha, dcode, pcihdr, 0x20 * 4);
bcode = mbuf + (pcihdr % 4);
if (memcmp(bcode, "\x55\xaa", 2)) {
/* No signature */
ql_log(ql_log_fatal, vha, 0x0154,
"No matching ROM signature.\n");
ret = QLA_FUNCTION_FAILED;
break;
}
/* Locate PCI data structure. */
pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
ha->isp_ops->read_optrom(vha, dcode, pcids, 0x20 * 4);
bcode = mbuf + (pcihdr % 4);
/* Validate signature of PCI data structure. */
if (memcmp(bcode, "PCIR", 4)) {
/* Incorrect header. */
ql_log(ql_log_fatal, vha, 0x0155,
"PCI data struct not found pcir_adr=%x.\n", pcids);
ret = QLA_FUNCTION_FAILED;
break;
}
/* Read version */
code_type = bcode[0x14];
switch (code_type) {
case ROM_CODE_TYPE_BIOS:
/* Intel x86, PC-AT compatible. */
ha->bios_revision[0] = bcode[0x12];
ha->bios_revision[1] = bcode[0x13];
ql_dbg(ql_dbg_init, vha, 0x0156,
"Read BIOS %d.%d.\n",
ha->bios_revision[1], ha->bios_revision[0]);
break;
case ROM_CODE_TYPE_FCODE:
/* Open Firmware standard for PCI (FCode). */
ha->fcode_revision[0] = bcode[0x12];
ha->fcode_revision[1] = bcode[0x13];
ql_dbg(ql_dbg_init, vha, 0x0157,
"Read FCODE %d.%d.\n",
ha->fcode_revision[1], ha->fcode_revision[0]);
break;
case ROM_CODE_TYPE_EFI:
/* Extensible Firmware Interface (EFI). */
ha->efi_revision[0] = bcode[0x12];
ha->efi_revision[1] = bcode[0x13];
ql_dbg(ql_dbg_init, vha, 0x0158,
"Read EFI %d.%d.\n",
ha->efi_revision[1], ha->efi_revision[0]);
break;
default:
ql_log(ql_log_warn, vha, 0x0159,
"Unrecognized code type %x at pcids %x.\n",
code_type, pcids);
break;
}
last_image = bcode[0x15] & BIT_7;
/* Locate next PCI expansion ROM. */
pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
} while (!last_image);
/* Read firmware image information. */
memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
dcode = mbuf;
ha->isp_ops->read_optrom(vha, dcode, ha->flt_region_fw << 2, 0x20);
bcode = mbuf + (pcihdr % 4);
/* Validate signature of PCI data structure. */
if (bcode[0x0] == 0x3 && bcode[0x1] == 0x0 &&
bcode[0x2] == 0x40 && bcode[0x3] == 0x40) {
ha->fw_revision[0] = bcode[0x4];
ha->fw_revision[1] = bcode[0x5];
ha->fw_revision[2] = bcode[0x6];
ql_dbg(ql_dbg_init, vha, 0x0153,
"Firmware revision %d.%d.%d\n",
ha->fw_revision[0], ha->fw_revision[1],
ha->fw_revision[2]);
}
return ret;
}
int
qla24xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
{
int ret = QLA_SUCCESS;
uint32_t pcihdr = 0, pcids = 0;
uint32_t *dcode = mbuf;
uint8_t *bcode = mbuf;
uint8_t code_type, last_image;
int i;
struct qla_hw_data *ha = vha->hw;
uint32_t faddr = 0;
struct active_regions active_regions = { };
if (IS_P3P_TYPE(ha))
return ret;
if (!mbuf)
return QLA_FUNCTION_FAILED;
memset(ha->bios_revision, 0, sizeof(ha->bios_revision));
memset(ha->efi_revision, 0, sizeof(ha->efi_revision));
memset(ha->fcode_revision, 0, sizeof(ha->fcode_revision));
memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
pcihdr = ha->flt_region_boot << 2;
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
qla27xx_get_active_image(vha, &active_regions);
if (active_regions.global == QLA27XX_SECONDARY_IMAGE) {
pcihdr = ha->flt_region_boot_sec << 2;
}
}
do {
/* Verify PCI expansion ROM header. */
qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20);
bcode = mbuf + (pcihdr % 4);
if (memcmp(bcode, "\x55\xaa", 2)) {
/* No signature */
ql_log(ql_log_fatal, vha, 0x0059,
"No matching ROM signature.\n");
ret = QLA_FUNCTION_FAILED;
break;
}
/* Locate PCI data structure. */
pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]);
qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20);
bcode = mbuf + (pcihdr % 4);
/* Validate signature of PCI data structure. */
if (memcmp(bcode, "PCIR", 4)) {
/* Incorrect header. */
ql_log(ql_log_fatal, vha, 0x005a,
"PCI data struct not found pcir_adr=%x.\n", pcids);
ql_dump_buffer(ql_dbg_init, vha, 0x0059, dcode, 32);
ret = QLA_FUNCTION_FAILED;
break;
}
/* Read version */
code_type = bcode[0x14];
switch (code_type) {
case ROM_CODE_TYPE_BIOS:
/* Intel x86, PC-AT compatible. */
ha->bios_revision[0] = bcode[0x12];
ha->bios_revision[1] = bcode[0x13];
ql_dbg(ql_dbg_init, vha, 0x005b,
"Read BIOS %d.%d.\n",
ha->bios_revision[1], ha->bios_revision[0]);
break;
case ROM_CODE_TYPE_FCODE:
/* Open Firmware standard for PCI (FCode). */
ha->fcode_revision[0] = bcode[0x12];
ha->fcode_revision[1] = bcode[0x13];
ql_dbg(ql_dbg_init, vha, 0x005c,
"Read FCODE %d.%d.\n",
ha->fcode_revision[1], ha->fcode_revision[0]);
break;
case ROM_CODE_TYPE_EFI:
/* Extensible Firmware Interface (EFI). */
ha->efi_revision[0] = bcode[0x12];
ha->efi_revision[1] = bcode[0x13];
ql_dbg(ql_dbg_init, vha, 0x005d,
"Read EFI %d.%d.\n",
ha->efi_revision[1], ha->efi_revision[0]);
break;
default:
ql_log(ql_log_warn, vha, 0x005e,
"Unrecognized code type %x at pcids %x.\n",
code_type, pcids);
break;
}
last_image = bcode[0x15] & BIT_7;
/* Locate next PCI expansion ROM. */
pcihdr += ((bcode[0x11] << 8) | bcode[0x10]) * 512;
} while (!last_image);
/* Read firmware image information. */
memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
faddr = ha->flt_region_fw;
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
qla27xx_get_active_image(vha, &active_regions);
if (active_regions.global == QLA27XX_SECONDARY_IMAGE)
faddr = ha->flt_region_fw_sec;
}
qla24xx_read_flash_data(vha, dcode, faddr, 8);
if (qla24xx_risc_firmware_invalid(dcode)) {
ql_log(ql_log_warn, vha, 0x005f,
"Unrecognized fw revision at %x.\n",
ha->flt_region_fw * 4);
ql_dump_buffer(ql_dbg_init, vha, 0x005f, dcode, 32);
} else {
for (i = 0; i < 4; i++)
ha->fw_revision[i] =
be32_to_cpu((__force __be32)dcode[4+i]);
ql_dbg(ql_dbg_init, vha, 0x0060,
"Firmware revision (flash) %u.%u.%u (%x).\n",
ha->fw_revision[0], ha->fw_revision[1],
ha->fw_revision[2], ha->fw_revision[3]);
}
/* Check for golden firmware and get version if available */
if (!IS_QLA81XX(ha)) {
/* Golden firmware is not present in non 81XX adapters */
return ret;
}
memset(ha->gold_fw_version, 0, sizeof(ha->gold_fw_version));
faddr = ha->flt_region_gold_fw;
qla24xx_read_flash_data(vha, dcode, ha->flt_region_gold_fw, 8);
if (qla24xx_risc_firmware_invalid(dcode)) {
ql_log(ql_log_warn, vha, 0x0056,
"Unrecognized golden fw at %#x.\n", faddr);
ql_dump_buffer(ql_dbg_init, vha, 0x0056, dcode, 32);
return ret;
}
for (i = 0; i < 4; i++)
ha->gold_fw_version[i] =
be32_to_cpu((__force __be32)dcode[4+i]);
return ret;
}
static int
qla2xxx_is_vpd_valid(uint8_t *pos, uint8_t *end)
{
if (pos >= end || *pos != 0x82)
return 0;
pos += 3 + pos[1];
if (pos >= end || *pos != 0x90)
return 0;
pos += 3 + pos[1];
if (pos >= end || *pos != 0x78)
return 0;
return 1;
}
int
qla2xxx_get_vpd_field(scsi_qla_host_t *vha, char *key, char *str, size_t size)
{
struct qla_hw_data *ha = vha->hw;
uint8_t *pos = ha->vpd;
uint8_t *end = pos + ha->vpd_size;
int len = 0;
if (!IS_FWI2_CAPABLE(ha) || !qla2xxx_is_vpd_valid(pos, end))
return 0;
while (pos < end && *pos != 0x78) {
len = (*pos == 0x82) ? pos[1] : pos[2];
if (!strncmp(pos, key, strlen(key)))
break;
if (*pos != 0x90 && *pos != 0x91)
pos += len;
pos += 3;
}
if (pos < end - len && *pos != 0x78)
return scnprintf(str, size, "%.*s", len, pos + 3);
return 0;
}
int
qla24xx_read_fcp_prio_cfg(scsi_qla_host_t *vha)
{
int len, max_len;
uint32_t fcp_prio_addr;
struct qla_hw_data *ha = vha->hw;
if (!ha->fcp_prio_cfg) {
ha->fcp_prio_cfg = vmalloc(FCP_PRIO_CFG_SIZE);
if (!ha->fcp_prio_cfg) {
ql_log(ql_log_warn, vha, 0x00d5,
"Unable to allocate memory for fcp priority data (%x).\n",
FCP_PRIO_CFG_SIZE);
return QLA_FUNCTION_FAILED;
}
}
memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE);
fcp_prio_addr = ha->flt_region_fcp_prio;
/* first read the fcp priority data header from flash */
ha->isp_ops->read_optrom(vha, ha->fcp_prio_cfg,
fcp_prio_addr << 2, FCP_PRIO_CFG_HDR_SIZE);
if (!qla24xx_fcp_prio_cfg_valid(vha, ha->fcp_prio_cfg, 0))
goto fail;
/* read remaining FCP CMD config data from flash */
fcp_prio_addr += (FCP_PRIO_CFG_HDR_SIZE >> 2);
len = ha->fcp_prio_cfg->num_entries * sizeof(struct qla_fcp_prio_entry);
max_len = FCP_PRIO_CFG_SIZE - FCP_PRIO_CFG_HDR_SIZE;
ha->isp_ops->read_optrom(vha, &ha->fcp_prio_cfg->entry[0],
fcp_prio_addr << 2, (len < max_len ? len : max_len));
/* revalidate the entire FCP priority config data, including entries */
if (!qla24xx_fcp_prio_cfg_valid(vha, ha->fcp_prio_cfg, 1))
goto fail;
ha->flags.fcp_prio_enabled = 1;
return QLA_SUCCESS;
fail:
vfree(ha->fcp_prio_cfg);
ha->fcp_prio_cfg = NULL;
return QLA_FUNCTION_FAILED;
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_sup.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_target.h"
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <scsi/scsi_tcq.h>
static int qla_start_scsi_type6(srb_t *sp);
/**
* qla2x00_get_cmd_direction() - Determine control_flag data direction.
* @sp: SCSI command
*
* Returns the proper CF_* direction based on CDB.
*/
static inline uint16_t
qla2x00_get_cmd_direction(srb_t *sp)
{
uint16_t cflags;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct scsi_qla_host *vha = sp->vha;
cflags = 0;
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cflags = CF_WRITE;
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
vha->qla_stats.output_requests++;
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cflags = CF_READ;
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
vha->qla_stats.input_requests++;
}
return (cflags);
}
/**
* qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and
* Continuation Type 0 IOCBs to allocate.
*
* @dsds: number of data segment descriptors needed
*
* Returns the number of IOCB entries needed to store @dsds.
*/
uint16_t
qla2x00_calc_iocbs_32(uint16_t dsds)
{
uint16_t iocbs;
iocbs = 1;
if (dsds > 3) {
iocbs += (dsds - 3) / 7;
if ((dsds - 3) % 7)
iocbs++;
}
return (iocbs);
}
/**
* qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and
* Continuation Type 1 IOCBs to allocate.
*
* @dsds: number of data segment descriptors needed
*
* Returns the number of IOCB entries needed to store @dsds.
*/
uint16_t
qla2x00_calc_iocbs_64(uint16_t dsds)
{
uint16_t iocbs;
iocbs = 1;
if (dsds > 2) {
iocbs += (dsds - 2) / 5;
if ((dsds - 2) % 5)
iocbs++;
}
return (iocbs);
}
/**
* qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB.
* @vha: HA context
*
* Returns a pointer to the Continuation Type 0 IOCB packet.
*/
static inline cont_entry_t *
qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha)
{
cont_entry_t *cont_pkt;
struct req_que *req = vha->req;
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else {
req->ring_ptr++;
}
cont_pkt = (cont_entry_t *)req->ring_ptr;
/* Load packet defaults. */
put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_type);
return (cont_pkt);
}
/**
* qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB.
* @vha: HA context
* @req: request queue
*
* Returns a pointer to the continuation type 1 IOCB packet.
*/
cont_a64_entry_t *
qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req)
{
cont_a64_entry_t *cont_pkt;
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else {
req->ring_ptr++;
}
cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
/* Load packet defaults. */
put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 :
CONTINUE_A64_TYPE, &cont_pkt->entry_type);
return (cont_pkt);
}
inline int
qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
/* We always use DIFF Bundling for best performance */
*fw_prot_opts = 0;
/* Translate SCSI opcode to a protection opcode */
switch (scsi_get_prot_op(cmd)) {
case SCSI_PROT_READ_STRIP:
*fw_prot_opts |= PO_MODE_DIF_REMOVE;
break;
case SCSI_PROT_WRITE_INSERT:
*fw_prot_opts |= PO_MODE_DIF_INSERT;
break;
case SCSI_PROT_READ_INSERT:
*fw_prot_opts |= PO_MODE_DIF_INSERT;
break;
case SCSI_PROT_WRITE_STRIP:
*fw_prot_opts |= PO_MODE_DIF_REMOVE;
break;
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
if (cmd->prot_flags & SCSI_PROT_IP_CHECKSUM)
*fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM;
else
*fw_prot_opts |= PO_MODE_DIF_PASS;
break;
default: /* Normal Request */
*fw_prot_opts |= PO_MODE_DIF_PASS;
break;
}
if (!(cmd->prot_flags & SCSI_PROT_GUARD_CHECK))
*fw_prot_opts |= PO_DISABLE_GUARD_CHECK;
return scsi_prot_sg_count(cmd);
}
/*
* qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
* capable IOCB types.
*
* @sp: SRB command to process
* @cmd_pkt: Command type 2 IOCB
* @tot_dsds: Total number of segments to transfer
*/
void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt,
uint16_t tot_dsds)
{
uint16_t avail_dsds;
struct dsd32 *cur_dsd;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
struct scatterlist *sg;
int i;
cmd = GET_CMD_SP(sp);
/* Update entry type to indicate Command Type 2 IOCB */
put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_type);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = cpu_to_le32(0);
return;
}
vha = sp->vha;
cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
/* Three DSDs are available in the Command Type 2 IOCB */
avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32);
cur_dsd = cmd_pkt->dsd32;
/* Load data segments */
scsi_for_each_sg(cmd, sg, tot_dsds, i) {
cont_entry_t *cont_pkt;
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Seven DSDs are available in the Continuation
* Type 0 IOCB.
*/
cont_pkt = qla2x00_prep_cont_type0_iocb(vha);
cur_dsd = cont_pkt->dsd;
avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
}
append_dsd32(&cur_dsd, sg);
avail_dsds--;
}
}
/**
* qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit
* capable IOCB types.
*
* @sp: SRB command to process
* @cmd_pkt: Command type 3 IOCB
* @tot_dsds: Total number of segments to transfer
*/
void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt,
uint16_t tot_dsds)
{
uint16_t avail_dsds;
struct dsd64 *cur_dsd;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
struct scatterlist *sg;
int i;
cmd = GET_CMD_SP(sp);
/* Update entry type to indicate Command Type 3 IOCB */
put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_type);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = cpu_to_le32(0);
return;
}
vha = sp->vha;
cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
/* Two DSDs are available in the Command Type 3 IOCB */
avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64);
cur_dsd = cmd_pkt->dsd64;
/* Load data segments */
scsi_for_each_sg(cmd, sg, tot_dsds, i) {
cont_a64_entry_t *cont_pkt;
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Continuation
* Type 1 IOCB.
*/
cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
cur_dsd = cont_pkt->dsd;
avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
}
/*
* Find the first handle that is not in use, starting from
* req->current_outstanding_cmd + 1. The caller must hold the lock that is
* associated with @req.
*/
uint32_t qla2xxx_get_next_handle(struct req_que *req)
{
uint32_t index, handle = req->current_outstanding_cmd;
for (index = 1; index < req->num_outstanding_cmds; index++) {
handle++;
if (handle == req->num_outstanding_cmds)
handle = 1;
if (!req->outstanding_cmds[handle])
return handle;
}
return 0;
}
/**
* qla2x00_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
int
qla2x00_start_scsi(srb_t *sp)
{
int nseg;
unsigned long flags;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
uint32_t *clr_ptr;
uint32_t handle;
cmd_entry_t *cmd_pkt;
uint16_t cnt;
uint16_t req_cnt;
uint16_t tot_dsds;
struct device_reg_2xxx __iomem *reg;
struct qla_hw_data *ha;
struct req_que *req;
struct rsp_que *rsp;
/* Setup device pointers. */
vha = sp->vha;
ha = vha->hw;
reg = &ha->iobase->isp;
cmd = GET_CMD_SP(sp);
req = ha->req_q_map[0];
rsp = ha->rsp_q_map[0];
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
QLA_SUCCESS) {
return (QLA_FUNCTION_FAILED);
}
vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
handle = qla2xxx_get_next_handle(req);
if (handle == 0)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
} else
nseg = 0;
tot_dsds = nseg;
/* Calculate the number of request entries needed. */
req_cnt = ha->isp_ops->calc_req_entries(tot_dsds);
if (req->cnt < (req_cnt + 2)) {
cnt = rd_reg_word_relaxed(ISP_REQ_Q_OUT(ha, reg));
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
/* If still no head room then bail out */
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
/* Build command packet */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
cmd_pkt = (cmd_entry_t *)req->ring_ptr;
cmd_pkt->handle = handle;
/* Zero out remaining portion of packet. */
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Set target ID and LUN number*/
SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id);
cmd_pkt->lun = cpu_to_le16(cmd->device->lun);
cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG);
/* Load SCSI command packet. */
memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds);
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
wrt_reg_word(ISP_REQ_Q_IN(ha, reg), req->ring_index);
rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla2x00_process_response_queue(rsp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return (QLA_SUCCESS);
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return (QLA_FUNCTION_FAILED);
}
/**
* qla2x00_start_iocbs() - Execute the IOCB command
* @vha: HA context
* @req: request queue
*/
void
qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
{
struct qla_hw_data *ha = vha->hw;
device_reg_t *reg = ISP_QUE_REG(ha, req->id);
if (IS_P3P_TYPE(ha)) {
qla82xx_start_iocbs(vha);
} else {
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
/* Set chip new ring index. */
if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
wrt_reg_dword(req->req_q_in, req->ring_index);
} else if (IS_QLA83XX(ha)) {
wrt_reg_dword(req->req_q_in, req->ring_index);
rd_reg_dword_relaxed(&ha->iobase->isp24.hccr);
} else if (IS_QLAFX00(ha)) {
wrt_reg_dword(®->ispfx00.req_q_in, req->ring_index);
rd_reg_dword_relaxed(®->ispfx00.req_q_in);
QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
} else if (IS_FWI2_CAPABLE(ha)) {
wrt_reg_dword(®->isp24.req_q_in, req->ring_index);
rd_reg_dword_relaxed(®->isp24.req_q_in);
} else {
wrt_reg_word(ISP_REQ_Q_IN(ha, ®->isp),
req->ring_index);
rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, ®->isp));
}
}
}
/**
* __qla2x00_marker() - Send a marker IOCB to the firmware.
* @vha: HA context
* @qpair: queue pair pointer
* @loop_id: loop ID
* @lun: LUN
* @type: marker modifier
*
* Can be called from both normal and interrupt context.
*
* Returns non-zero if a failure occurred, else zero.
*/
static int
__qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
uint16_t loop_id, uint64_t lun, uint8_t type)
{
mrk_entry_t *mrk;
struct mrk_entry_24xx *mrk24 = NULL;
struct req_que *req = qpair->req;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, NULL);
if (mrk == NULL) {
ql_log(ql_log_warn, base_vha, 0x3026,
"Failed to allocate Marker IOCB.\n");
return (QLA_FUNCTION_FAILED);
}
mrk24 = (struct mrk_entry_24xx *)mrk;
mrk->entry_type = MARKER_TYPE;
mrk->modifier = type;
if (type != MK_SYNC_ALL) {
if (IS_FWI2_CAPABLE(ha)) {
mrk24->nport_handle = cpu_to_le16(loop_id);
int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun);
host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
mrk24->vp_index = vha->vp_idx;
} else {
SET_TARGET_ID(ha, mrk->target, loop_id);
mrk->lun = cpu_to_le16((uint16_t)lun);
}
}
if (IS_FWI2_CAPABLE(ha))
mrk24->handle = QLA_SKIP_HANDLE;
wmb();
qla2x00_start_iocbs(vha, req);
return (QLA_SUCCESS);
}
int
qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
uint16_t loop_id, uint64_t lun, uint8_t type)
{
int ret;
unsigned long flags = 0;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
ret = __qla2x00_marker(vha, qpair, loop_id, lun, type);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return (ret);
}
/*
* qla2x00_issue_marker
*
* Issue marker
* Caller CAN have hardware lock held as specified by ha_locked parameter.
* Might release it, then reaquire.
*/
int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
{
if (ha_locked) {
if (__qla2x00_marker(vha, vha->hw->base_qpair, 0, 0,
MK_SYNC_ALL) != QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
} else {
if (qla2x00_marker(vha, vha->hw->base_qpair, 0, 0,
MK_SYNC_ALL) != QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
}
vha->marker_needed = 0;
return QLA_SUCCESS;
}
static inline int
qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
uint16_t tot_dsds)
{
struct dsd64 *cur_dsd = NULL, *next_dsd;
struct scsi_cmnd *cmd;
struct scatterlist *cur_seg;
uint8_t avail_dsds;
uint8_t first_iocb = 1;
uint32_t dsd_list_len;
struct dsd_dma *dsd_ptr;
struct ct6_dsd *ctx;
struct qla_qpair *qpair = sp->qpair;
cmd = GET_CMD_SP(sp);
/* Update entry type to indicate Command Type 3 IOCB */
put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE ||
tot_dsds == 0) {
cmd_pkt->byte_count = cpu_to_le32(0);
return 0;
}
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
qpair->counters.output_bytes += scsi_bufflen(cmd);
qpair->counters.output_requests++;
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
qpair->counters.input_bytes += scsi_bufflen(cmd);
qpair->counters.input_requests++;
}
cur_seg = scsi_sglist(cmd);
ctx = &sp->u.scmd.ct6_ctx;
while (tot_dsds) {
avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
QLA_DSDS_PER_IOCB : tot_dsds;
tot_dsds -= avail_dsds;
dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
dsd_ptr = list_first_entry(&qpair->dsd_list, struct dsd_dma, list);
next_dsd = dsd_ptr->dsd_addr;
list_del(&dsd_ptr->list);
qpair->dsd_avail--;
list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
ctx->dsd_use_cnt++;
qpair->dsd_inuse++;
if (first_iocb) {
first_iocb = 0;
put_unaligned_le64(dsd_ptr->dsd_list_dma,
&cmd_pkt->fcp_dsd.address);
cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len);
} else {
put_unaligned_le64(dsd_ptr->dsd_list_dma,
&cur_dsd->address);
cur_dsd->length = cpu_to_le32(dsd_list_len);
cur_dsd++;
}
cur_dsd = next_dsd;
while (avail_dsds) {
append_dsd64(&cur_dsd, cur_seg);
cur_seg = sg_next(cur_seg);
avail_dsds--;
}
}
/* Null termination */
cur_dsd->address = 0;
cur_dsd->length = 0;
cur_dsd++;
cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
return 0;
}
/*
* qla24xx_calc_dsd_lists() - Determine number of DSD list required
* for Command Type 6.
*
* @dsds: number of data segment descriptors needed
*
* Returns the number of dsd list needed to store @dsds.
*/
static inline uint16_t
qla24xx_calc_dsd_lists(uint16_t dsds)
{
uint16_t dsd_lists = 0;
dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
if (dsds % QLA_DSDS_PER_IOCB)
dsd_lists++;
return dsd_lists;
}
/**
* qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7
* IOCB types.
*
* @sp: SRB command to process
* @cmd_pkt: Command type 3 IOCB
* @tot_dsds: Total number of segments to transfer
* @req: pointer to request queue
*/
inline void
qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
uint16_t tot_dsds, struct req_que *req)
{
uint16_t avail_dsds;
struct dsd64 *cur_dsd;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
struct scatterlist *sg;
int i;
struct qla_qpair *qpair = sp->qpair;
cmd = GET_CMD_SP(sp);
/* Update entry type to indicate Command Type 3 IOCB */
put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = cpu_to_le32(0);
return;
}
vha = sp->vha;
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA);
qpair->counters.output_bytes += scsi_bufflen(cmd);
qpair->counters.output_requests++;
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
qpair->counters.input_bytes += scsi_bufflen(cmd);
qpair->counters.input_requests++;
}
/* One DSD is available in the Command Type 3 IOCB */
avail_dsds = 1;
cur_dsd = &cmd_pkt->dsd;
/* Load data segments */
scsi_for_each_sg(cmd, sg, tot_dsds, i) {
cont_a64_entry_t *cont_pkt;
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Continuation
* Type 1 IOCB.
*/
cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req);
cur_dsd = cont_pkt->dsd;
avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
}
struct fw_dif_context {
__le32 ref_tag;
__le16 app_tag;
uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/
uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/
};
/*
* qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command
*
*/
static inline void
qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt,
unsigned int protcnt)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
pkt->ref_tag = cpu_to_le32(scsi_prot_ref_tag(cmd));
if (cmd->prot_flags & SCSI_PROT_REF_CHECK &&
qla2x00_hba_err_chk_enabled(sp)) {
pkt->ref_tag_mask[0] = 0xff;
pkt->ref_tag_mask[1] = 0xff;
pkt->ref_tag_mask[2] = 0xff;
pkt->ref_tag_mask[3] = 0xff;
}
pkt->app_tag = cpu_to_le16(0);
pkt->app_tag_mask[0] = 0x0;
pkt->app_tag_mask[1] = 0x0;
}
int
qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx,
uint32_t *partial)
{
struct scatterlist *sg;
uint32_t cumulative_partial, sg_len;
dma_addr_t sg_dma_addr;
if (sgx->num_bytes == sgx->tot_bytes)
return 0;
sg = sgx->cur_sg;
cumulative_partial = sgx->tot_partial;
sg_dma_addr = sg_dma_address(sg);
sg_len = sg_dma_len(sg);
sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed;
if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) {
sgx->dma_len = (blk_sz - cumulative_partial);
sgx->tot_partial = 0;
sgx->num_bytes += blk_sz;
*partial = 0;
} else {
sgx->dma_len = sg_len - sgx->bytes_consumed;
sgx->tot_partial += sgx->dma_len;
*partial = 1;
}
sgx->bytes_consumed += sgx->dma_len;
if (sg_len == sgx->bytes_consumed) {
sg = sg_next(sg);
sgx->num_sg++;
sgx->cur_sg = sg;
sgx->bytes_consumed = 0;
}
return 1;
}
int
qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp,
struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
{
void *next_dsd;
uint8_t avail_dsds = 0;
uint32_t dsd_list_len;
struct dsd_dma *dsd_ptr;
struct scatterlist *sg_prot;
struct dsd64 *cur_dsd = dsd;
uint16_t used_dsds = tot_dsds;
uint32_t prot_int; /* protection interval */
uint32_t partial;
struct qla2_sgx sgx;
dma_addr_t sle_dma;
uint32_t sle_dma_len, tot_prot_dma_len = 0;
struct scsi_cmnd *cmd;
memset(&sgx, 0, sizeof(struct qla2_sgx));
if (sp) {
cmd = GET_CMD_SP(sp);
prot_int = scsi_prot_interval(cmd);
sgx.tot_bytes = scsi_bufflen(cmd);
sgx.cur_sg = scsi_sglist(cmd);
sgx.sp = sp;
sg_prot = scsi_prot_sglist(cmd);
} else if (tc) {
prot_int = tc->blk_sz;
sgx.tot_bytes = tc->bufflen;
sgx.cur_sg = tc->sg;
sg_prot = tc->prot_sg;
} else {
BUG();
return 1;
}
while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) {
sle_dma = sgx.dma_addr;
sle_dma_len = sgx.dma_len;
alloc_and_fill:
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
QLA_DSDS_PER_IOCB : used_dsds;
dsd_list_len = (avail_dsds + 1) * 12;
used_dsds -= avail_dsds;
/* allocate tracking DS */
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
if (!dsd_ptr)
return 1;
/* allocate new list */
dsd_ptr->dsd_addr = next_dsd =
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
&dsd_ptr->dsd_list_dma);
if (!next_dsd) {
/*
* Need to cleanup only this dsd_ptr, rest
* will be done by sp_free_dma()
*/
kfree(dsd_ptr);
return 1;
}
if (sp) {
list_add_tail(&dsd_ptr->list,
&sp->u.scmd.crc_ctx->dsd_list);
sp->flags |= SRB_CRC_CTX_DSD_VALID;
} else {
list_add_tail(&dsd_ptr->list,
&(tc->ctx->dsd_list));
*tc->ctx_dsd_alloced = 1;
}
/* add new list to cmd iocb or last list */
put_unaligned_le64(dsd_ptr->dsd_list_dma,
&cur_dsd->address);
cur_dsd->length = cpu_to_le32(dsd_list_len);
cur_dsd = next_dsd;
}
put_unaligned_le64(sle_dma, &cur_dsd->address);
cur_dsd->length = cpu_to_le32(sle_dma_len);
cur_dsd++;
avail_dsds--;
if (partial == 0) {
/* Got a full protection interval */
sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len;
sle_dma_len = 8;
tot_prot_dma_len += sle_dma_len;
if (tot_prot_dma_len == sg_dma_len(sg_prot)) {
tot_prot_dma_len = 0;
sg_prot = sg_next(sg_prot);
}
partial = 1; /* So as to not re-enter this block */
goto alloc_and_fill;
}
}
/* Null termination */
cur_dsd->address = 0;
cur_dsd->length = 0;
cur_dsd++;
return 0;
}
int
qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp,
struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
{
void *next_dsd;
uint8_t avail_dsds = 0;
uint32_t dsd_list_len;
struct dsd_dma *dsd_ptr;
struct scatterlist *sg, *sgl;
struct dsd64 *cur_dsd = dsd;
int i;
uint16_t used_dsds = tot_dsds;
struct scsi_cmnd *cmd;
if (sp) {
cmd = GET_CMD_SP(sp);
sgl = scsi_sglist(cmd);
} else if (tc) {
sgl = tc->sg;
} else {
BUG();
return 1;
}
for_each_sg(sgl, sg, tot_dsds, i) {
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
QLA_DSDS_PER_IOCB : used_dsds;
dsd_list_len = (avail_dsds + 1) * 12;
used_dsds -= avail_dsds;
/* allocate tracking DS */
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
if (!dsd_ptr)
return 1;
/* allocate new list */
dsd_ptr->dsd_addr = next_dsd =
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
&dsd_ptr->dsd_list_dma);
if (!next_dsd) {
/*
* Need to cleanup only this dsd_ptr, rest
* will be done by sp_free_dma()
*/
kfree(dsd_ptr);
return 1;
}
if (sp) {
list_add_tail(&dsd_ptr->list,
&sp->u.scmd.crc_ctx->dsd_list);
sp->flags |= SRB_CRC_CTX_DSD_VALID;
} else {
list_add_tail(&dsd_ptr->list,
&(tc->ctx->dsd_list));
*tc->ctx_dsd_alloced = 1;
}
/* add new list to cmd iocb or last list */
put_unaligned_le64(dsd_ptr->dsd_list_dma,
&cur_dsd->address);
cur_dsd->length = cpu_to_le32(dsd_list_len);
cur_dsd = next_dsd;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
/* Null termination */
cur_dsd->address = 0;
cur_dsd->length = 0;
cur_dsd++;
return 0;
}
int
qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc)
{
struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd;
struct scatterlist *sg, *sgl;
struct crc_context *difctx = NULL;
struct scsi_qla_host *vha;
uint dsd_list_len;
uint avail_dsds = 0;
uint used_dsds = tot_dsds;
bool dif_local_dma_alloc = false;
bool direction_to_device = false;
int i;
if (sp) {
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
sgl = scsi_prot_sglist(cmd);
vha = sp->vha;
difctx = sp->u.scmd.crc_ctx;
direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE;
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
"%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n",
__func__, cmd, difctx, sp);
} else if (tc) {
vha = tc->vha;
sgl = tc->prot_sg;
difctx = tc->ctx;
direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE;
} else {
BUG();
return 1;
}
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
"%s: enter (write=%u)\n", __func__, direction_to_device);
/* if initiator doing write or target doing read */
if (direction_to_device) {
for_each_sg(sgl, sg, tot_dsds, i) {
u64 sle_phys = sg_phys(sg);
/* If SGE addr + len flips bits in upper 32-bits */
if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) {
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022,
"%s: page boundary crossing (phys=%llx len=%x)\n",
__func__, sle_phys, sg->length);
if (difctx) {
ha->dif_bundle_crossed_pages++;
dif_local_dma_alloc = true;
} else {
ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
vha, 0xe022,
"%s: difctx pointer is NULL\n",
__func__);
}
break;
}
}
ha->dif_bundle_writes++;
} else {
ha->dif_bundle_reads++;
}
if (ql2xdifbundlinginternalbuffers)
dif_local_dma_alloc = direction_to_device;
if (dif_local_dma_alloc) {
u32 track_difbundl_buf = 0;
u32 ldma_sg_len = 0;
u8 ldma_needed = 1;
difctx->no_dif_bundl = 0;
difctx->dif_bundl_len = 0;
/* Track DSD buffers */
INIT_LIST_HEAD(&difctx->ldif_dsd_list);
/* Track local DMA buffers */
INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list);
for_each_sg(sgl, sg, tot_dsds, i) {
u32 sglen = sg_dma_len(sg);
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023,
"%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n",
__func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len,
difctx->dif_bundl_len, ldma_needed);
while (sglen) {
u32 xfrlen = 0;
if (ldma_needed) {
/*
* Allocate list item to store
* the DMA buffers
*/
dsd_ptr = kzalloc(sizeof(*dsd_ptr),
GFP_ATOMIC);
if (!dsd_ptr) {
ql_dbg(ql_dbg_tgt, vha, 0xe024,
"%s: failed alloc dsd_ptr\n",
__func__);
return 1;
}
ha->dif_bundle_kallocs++;
/* allocate dma buffer */
dsd_ptr->dsd_addr = dma_pool_alloc
(ha->dif_bundl_pool, GFP_ATOMIC,
&dsd_ptr->dsd_list_dma);
if (!dsd_ptr->dsd_addr) {
ql_dbg(ql_dbg_tgt, vha, 0xe024,
"%s: failed alloc ->dsd_ptr\n",
__func__);
/*
* need to cleanup only this
* dsd_ptr rest will be done
* by sp_free_dma()
*/
kfree(dsd_ptr);
ha->dif_bundle_kallocs--;
return 1;
}
ha->dif_bundle_dma_allocs++;
ldma_needed = 0;
difctx->no_dif_bundl++;
list_add_tail(&dsd_ptr->list,
&difctx->ldif_dma_hndl_list);
}
/* xfrlen is min of dma pool size and sglen */
xfrlen = (sglen >
(DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ?
DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len :
sglen;
/* replace with local allocated dma buffer */
sg_pcopy_to_buffer(sgl, sg_nents(sgl),
dsd_ptr->dsd_addr + ldma_sg_len, xfrlen,
difctx->dif_bundl_len);
difctx->dif_bundl_len += xfrlen;
sglen -= xfrlen;
ldma_sg_len += xfrlen;
if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE ||
sg_is_last(sg)) {
ldma_needed = 1;
ldma_sg_len = 0;
}
}
}
track_difbundl_buf = used_dsds = difctx->no_dif_bundl;
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025,
"dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n",
difctx->dif_bundl_len, difctx->no_dif_bundl,
track_difbundl_buf);
if (sp)
sp->flags |= SRB_DIF_BUNDL_DMA_VALID;
else
tc->prot_flags = DIF_BUNDL_DMA_VALID;
list_for_each_entry_safe(dif_dsd, nxt_dsd,
&difctx->ldif_dma_hndl_list, list) {
u32 sglen = (difctx->dif_bundl_len >
DIF_BUNDLING_DMA_POOL_SIZE) ?
DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len;
BUG_ON(track_difbundl_buf == 0);
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha,
0xe024,
"%s: adding continuation iocb's\n",
__func__);
avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
QLA_DSDS_PER_IOCB : used_dsds;
dsd_list_len = (avail_dsds + 1) * 12;
used_dsds -= avail_dsds;
/* allocate tracking DS */
dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
if (!dsd_ptr) {
ql_dbg(ql_dbg_tgt, vha, 0xe026,
"%s: failed alloc dsd_ptr\n",
__func__);
return 1;
}
ha->dif_bundle_kallocs++;
difctx->no_ldif_dsd++;
/* allocate new list */
dsd_ptr->dsd_addr =
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
&dsd_ptr->dsd_list_dma);
if (!dsd_ptr->dsd_addr) {
ql_dbg(ql_dbg_tgt, vha, 0xe026,
"%s: failed alloc ->dsd_addr\n",
__func__);
/*
* need to cleanup only this dsd_ptr
* rest will be done by sp_free_dma()
*/
kfree(dsd_ptr);
ha->dif_bundle_kallocs--;
return 1;
}
ha->dif_bundle_dma_allocs++;
if (sp) {
list_add_tail(&dsd_ptr->list,
&difctx->ldif_dsd_list);
sp->flags |= SRB_CRC_CTX_DSD_VALID;
} else {
list_add_tail(&dsd_ptr->list,
&difctx->ldif_dsd_list);
tc->ctx_dsd_alloced = 1;
}
/* add new list to cmd iocb or last list */
put_unaligned_le64(dsd_ptr->dsd_list_dma,
&cur_dsd->address);
cur_dsd->length = cpu_to_le32(dsd_list_len);
cur_dsd = dsd_ptr->dsd_addr;
}
put_unaligned_le64(dif_dsd->dsd_list_dma,
&cur_dsd->address);
cur_dsd->length = cpu_to_le32(sglen);
cur_dsd++;
avail_dsds--;
difctx->dif_bundl_len -= sglen;
track_difbundl_buf--;
}
ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026,
"%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__,
difctx->no_ldif_dsd, difctx->no_dif_bundl);
} else {
for_each_sg(sgl, sg, tot_dsds, i) {
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
QLA_DSDS_PER_IOCB : used_dsds;
dsd_list_len = (avail_dsds + 1) * 12;
used_dsds -= avail_dsds;
/* allocate tracking DS */
dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
if (!dsd_ptr) {
ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
vha, 0xe027,
"%s: failed alloc dsd_dma...\n",
__func__);
return 1;
}
/* allocate new list */
dsd_ptr->dsd_addr =
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
&dsd_ptr->dsd_list_dma);
if (!dsd_ptr->dsd_addr) {
/* need to cleanup only this dsd_ptr */
/* rest will be done by sp_free_dma() */
kfree(dsd_ptr);
return 1;
}
if (sp) {
list_add_tail(&dsd_ptr->list,
&difctx->dsd_list);
sp->flags |= SRB_CRC_CTX_DSD_VALID;
} else {
list_add_tail(&dsd_ptr->list,
&difctx->dsd_list);
tc->ctx_dsd_alloced = 1;
}
/* add new list to cmd iocb or last list */
put_unaligned_le64(dsd_ptr->dsd_list_dma,
&cur_dsd->address);
cur_dsd->length = cpu_to_le32(dsd_list_len);
cur_dsd = dsd_ptr->dsd_addr;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
}
/* Null termination */
cur_dsd->address = 0;
cur_dsd->length = 0;
cur_dsd++;
return 0;
}
/**
* qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
* Type 6 IOCB types.
*
* @sp: SRB command to process
* @cmd_pkt: Command type 3 IOCB
* @tot_dsds: Total number of segments to transfer
* @tot_prot_dsds: Total number of segments with protection information
* @fw_prot_opts: Protection options to be passed to firmware
*/
static inline int
qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts)
{
struct dsd64 *cur_dsd;
__be32 *fcp_dl;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
uint32_t total_bytes = 0;
uint32_t data_bytes;
uint32_t dif_bytes;
uint8_t bundling = 1;
uint16_t blk_size;
struct crc_context *crc_ctx_pkt = NULL;
struct qla_hw_data *ha;
uint8_t additional_fcpcdb_len;
uint16_t fcp_cmnd_len;
struct fcp_cmnd *fcp_cmnd;
dma_addr_t crc_ctx_dma;
cmd = GET_CMD_SP(sp);
/* Update entry type to indicate Command Type CRC_2 IOCB */
put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type);
vha = sp->vha;
ha = vha->hw;
/* No data transfer */
data_bytes = scsi_bufflen(cmd);
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = cpu_to_le32(0);
return QLA_SUCCESS;
}
cmd_pkt->vp_index = sp->vha->vp_idx;
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->control_flags =
cpu_to_le16(CF_WRITE_DATA);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->control_flags =
cpu_to_le16(CF_READ_DATA);
}
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) ||
(scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) ||
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT))
bundling = 0;
/* Allocate CRC context from global pool */
crc_ctx_pkt = sp->u.scmd.crc_ctx =
dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
if (!crc_ctx_pkt)
goto crc_queuing_error;
crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
sp->flags |= SRB_CRC_CTX_DMA_VALID;
/* Set handle */
crc_ctx_pkt->handle = cmd_pkt->handle;
INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *)
&crc_ctx_pkt->ref_tag, tot_prot_dsds);
put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address);
cmd_pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW);
/* Determine SCSI command length -- align to 4 byte boundary */
if (cmd->cmd_len > 16) {
additional_fcpcdb_len = cmd->cmd_len - 16;
if ((cmd->cmd_len % 4) != 0) {
/* SCSI cmd > 16 bytes must be multiple of 4 */
goto crc_queuing_error;
}
fcp_cmnd_len = 12 + cmd->cmd_len + 4;
} else {
additional_fcpcdb_len = 0;
fcp_cmnd_len = 12 + 16 + 4;
}
fcp_cmnd = &crc_ctx_pkt->fcp_cmnd;
fcp_cmnd->additional_cdb_len = additional_fcpcdb_len;
if (cmd->sc_data_direction == DMA_TO_DEVICE)
fcp_cmnd->additional_cdb_len |= 1;
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
fcp_cmnd->additional_cdb_len |= 2;
int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun);
memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len);
put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF,
&cmd_pkt->fcp_cmnd_dseg_address);
fcp_cmnd->task_management = 0;
fcp_cmnd->task_attribute = TSK_SIMPLE;
cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
/* Compute dif len and adjust data len to incude protection */
dif_bytes = 0;
blk_size = cmd->device->sector_size;
dif_bytes = (data_bytes / blk_size) * 8;
switch (scsi_get_prot_op(GET_CMD_SP(sp))) {
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
total_bytes = data_bytes;
data_bytes += dif_bytes;
break;
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
total_bytes = data_bytes + dif_bytes;
break;
default:
BUG();
}
if (!qla2x00_hba_err_chk_enabled(sp))
fw_prot_opts |= 0x10; /* Disable Guard tag checking */
/* HBA error checking enabled */
else if (IS_PI_UNINIT_CAPABLE(ha)) {
if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1)
|| (scsi_get_prot_type(GET_CMD_SP(sp)) ==
SCSI_PROT_DIF_TYPE2))
fw_prot_opts |= BIT_10;
else if (scsi_get_prot_type(GET_CMD_SP(sp)) ==
SCSI_PROT_DIF_TYPE3)
fw_prot_opts |= BIT_11;
}
if (!bundling) {
cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
} else {
/*
* Configure Bundling if we need to fetch interlaving
* protection PCI accesses
*/
fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds -
tot_prot_dsds);
cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0];
}
/* Finish the common fields of CRC pkt */
crc_ctx_pkt->blk_size = cpu_to_le16(blk_size);
crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
crc_ctx_pkt->guard_seed = cpu_to_le16(0);
/* Fibre channel byte count */
cmd_pkt->byte_count = cpu_to_le32(total_bytes);
fcp_dl = (__be32 *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
additional_fcpcdb_len);
*fcp_dl = htonl(total_bytes);
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = cpu_to_le32(0);
return QLA_SUCCESS;
}
/* Walks data segments */
cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
if (!bundling && tot_prot_dsds) {
if (qla24xx_walk_and_build_sglist_no_difb(ha, sp,
cur_dsd, tot_dsds, NULL))
goto crc_queuing_error;
} else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
(tot_dsds - tot_prot_dsds), NULL))
goto crc_queuing_error;
if (bundling && tot_prot_dsds) {
/* Walks dif segments */
cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
tot_prot_dsds, NULL))
goto crc_queuing_error;
}
return QLA_SUCCESS;
crc_queuing_error:
/* Cleanup will be performed by the caller */
return QLA_FUNCTION_FAILED;
}
/**
* qla24xx_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
int
qla24xx_start_scsi(srb_t *sp)
{
int nseg;
unsigned long flags;
uint32_t *clr_ptr;
uint32_t handle;
struct cmd_type_7 *cmd_pkt;
uint16_t cnt;
uint16_t req_cnt;
uint16_t tot_dsds;
struct req_que *req = NULL;
struct rsp_que *rsp;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct scsi_qla_host *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE))
return qla28xx_start_scsi_edif(sp);
/* Setup device pointers. */
req = vha->req;
rsp = req->rsp;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
handle = qla2xxx_get_next_handle(req);
if (handle == 0)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
} else
nseg = 0;
tot_dsds = nseg;
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
sp->iores.exch_cnt = 1;
sp->iores.iocb_cnt = req_cnt;
if (qla_get_fw_resources(sp->qpair, &sp->iores))
goto queuing_error;
if (req->cnt < (req_cnt + 2)) {
if (IS_SHADOW_REG_CAPABLE(ha)) {
cnt = *req->out_ptr;
} else {
cnt = rd_reg_dword_relaxed(req->req_q_out);
if (qla2x00_check_reg16_for_disconnect(vha, cnt))
goto queuing_error;
}
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
/* Zero out remaining portion of packet. */
/* tagged queuing modifier -- default is TSK_SIMPLE (0). */
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->vha->vp_idx;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
cmd_pkt->task = TSK_SIMPLE;
/* Load SCSI command packet. */
memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
sp->qpair->cmd_cnt++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
wrt_reg_dword(req->req_q_in, req->ring_index);
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
qla_put_fw_resources(sp->qpair, &sp->iores);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_FUNCTION_FAILED;
}
/**
* qla24xx_dif_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
int
qla24xx_dif_start_scsi(srb_t *sp)
{
int nseg;
unsigned long flags;
uint32_t *clr_ptr;
uint32_t handle;
uint16_t cnt;
uint16_t req_cnt = 0;
uint16_t tot_dsds;
uint16_t tot_prot_dsds;
uint16_t fw_prot_opts = 0;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct scsi_qla_host *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
struct cmd_type_crc_2 *cmd_pkt;
uint32_t status = 0;
#define QDSS_GOT_Q_SPACE BIT_0
/* Only process protection or >16 cdb in this routine */
if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
if (cmd->cmd_len <= 16)
return qla24xx_start_scsi(sp);
else
return qla_start_scsi_type6(sp);
}
/* Setup device pointers. */
req = vha->req;
rsp = req->rsp;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
handle = qla2xxx_get_next_handle(req);
if (handle == 0)
goto queuing_error;
/* Compute number of required data segments */
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
else
sp->flags |= SRB_DMA_VALID;
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
struct qla2_sgx sgx;
uint32_t partial;
memset(&sgx, 0, sizeof(struct qla2_sgx));
sgx.tot_bytes = scsi_bufflen(cmd);
sgx.cur_sg = scsi_sglist(cmd);
sgx.sp = sp;
nseg = 0;
while (qla24xx_get_one_block_sg(
cmd->device->sector_size, &sgx, &partial))
nseg++;
}
} else
nseg = 0;
/* number of required data segments */
tot_dsds = nseg;
/* Compute number of required protection segments */
if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
else
sp->flags |= SRB_CRC_PROT_DMA_VALID;
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
}
} else {
nseg = 0;
}
req_cnt = 1;
/* Total Data and protection sg segment(s) */
tot_prot_dsds = nseg;
tot_dsds += nseg;
sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
sp->iores.exch_cnt = 1;
sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
if (qla_get_fw_resources(sp->qpair, &sp->iores))
goto queuing_error;
if (req->cnt < (req_cnt + 2)) {
if (IS_SHADOW_REG_CAPABLE(ha)) {
cnt = *req->out_ptr;
} else {
cnt = rd_reg_dword_relaxed(req->req_q_out);
if (qla2x00_check_reg16_for_disconnect(vha, cnt))
goto queuing_error;
}
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
status |= QDSS_GOT_Q_SPACE;
/* Build header part of command packet (excluding the OPCODE). */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
/* Fill-in common area */
cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
/* Total Data and protection segment(s) */
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Build IOCB segments and adjust for data protection segments */
if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
QLA_SUCCESS)
goto queuing_error;
cmd_pkt->entry_count = (uint8_t)req_cnt;
/* Specify response queue number where completion should happen */
cmd_pkt->entry_status = (uint8_t) rsp->id;
cmd_pkt->timeout = cpu_to_le16(0);
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
sp->qpair->cmd_cnt++;
/* Set chip new ring index. */
wrt_reg_dword(req->req_q_in, req->ring_index);
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
queuing_error:
if (status & QDSS_GOT_Q_SPACE) {
req->outstanding_cmds[handle] = NULL;
req->cnt += req_cnt;
}
/* Cleanup will be performed by the caller (queuecommand) */
qla_put_fw_resources(sp->qpair, &sp->iores);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_FUNCTION_FAILED;
}
/**
* qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
static int
qla2xxx_start_scsi_mq(srb_t *sp)
{
int nseg;
unsigned long flags;
uint32_t *clr_ptr;
uint32_t handle;
struct cmd_type_7 *cmd_pkt;
uint16_t cnt;
uint16_t req_cnt;
uint16_t tot_dsds;
struct req_que *req = NULL;
struct rsp_que *rsp;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct scsi_qla_host *vha = sp->fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_qpair *qpair = sp->qpair;
if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE))
return qla28xx_start_scsi_edif(sp);
/* Acquire qpair specific lock */
spin_lock_irqsave(&qpair->qp_lock, flags);
/* Setup qpair pointers */
req = qpair->req;
rsp = qpair->rsp;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) !=
QLA_SUCCESS) {
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_FUNCTION_FAILED;
}
vha->marker_needed = 0;
}
handle = qla2xxx_get_next_handle(req);
if (handle == 0)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
} else
nseg = 0;
tot_dsds = nseg;
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
sp->iores.exch_cnt = 1;
sp->iores.iocb_cnt = req_cnt;
if (qla_get_fw_resources(sp->qpair, &sp->iores))
goto queuing_error;
if (req->cnt < (req_cnt + 2)) {
if (IS_SHADOW_REG_CAPABLE(ha)) {
cnt = *req->out_ptr;
} else {
cnt = rd_reg_dword_relaxed(req->req_q_out);
if (qla2x00_check_reg16_for_disconnect(vha, cnt))
goto queuing_error;
}
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
/* Zero out remaining portion of packet. */
/* tagged queuing modifier -- default is TSK_SIMPLE (0). */
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
cmd_pkt->task = TSK_SIMPLE;
/* Load SCSI command packet. */
memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
sp->qpair->cmd_cnt++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
wrt_reg_dword(req->req_q_in, req->ring_index);
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_SUCCESS;
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
qla_put_fw_resources(sp->qpair, &sp->iores);
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_FUNCTION_FAILED;
}
/**
* qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
int
qla2xxx_dif_start_scsi_mq(srb_t *sp)
{
int nseg;
unsigned long flags;
uint32_t *clr_ptr;
uint32_t handle;
uint16_t cnt;
uint16_t req_cnt = 0;
uint16_t tot_dsds;
uint16_t tot_prot_dsds;
uint16_t fw_prot_opts = 0;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct scsi_qla_host *vha = sp->fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct cmd_type_crc_2 *cmd_pkt;
uint32_t status = 0;
struct qla_qpair *qpair = sp->qpair;
#define QDSS_GOT_Q_SPACE BIT_0
/* Check for host side state */
if (!qpair->online) {
cmd->result = DID_NO_CONNECT << 16;
return QLA_INTERFACE_ERROR;
}
if (!qpair->difdix_supported &&
scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
cmd->result = DID_NO_CONNECT << 16;
return QLA_INTERFACE_ERROR;
}
/* Only process protection or >16 cdb in this routine */
if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
if (cmd->cmd_len <= 16)
return qla2xxx_start_scsi_mq(sp);
else
return qla_start_scsi_type6(sp);
}
spin_lock_irqsave(&qpair->qp_lock, flags);
/* Setup qpair pointers */
rsp = qpair->rsp;
req = qpair->req;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) !=
QLA_SUCCESS) {
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_FUNCTION_FAILED;
}
vha->marker_needed = 0;
}
handle = qla2xxx_get_next_handle(req);
if (handle == 0)
goto queuing_error;
/* Compute number of required data segments */
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
else
sp->flags |= SRB_DMA_VALID;
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
struct qla2_sgx sgx;
uint32_t partial;
memset(&sgx, 0, sizeof(struct qla2_sgx));
sgx.tot_bytes = scsi_bufflen(cmd);
sgx.cur_sg = scsi_sglist(cmd);
sgx.sp = sp;
nseg = 0;
while (qla24xx_get_one_block_sg(
cmd->device->sector_size, &sgx, &partial))
nseg++;
}
} else
nseg = 0;
/* number of required data segments */
tot_dsds = nseg;
/* Compute number of required protection segments */
if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
else
sp->flags |= SRB_CRC_PROT_DMA_VALID;
if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
(scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
}
} else {
nseg = 0;
}
req_cnt = 1;
/* Total Data and protection sg segment(s) */
tot_prot_dsds = nseg;
tot_dsds += nseg;
sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
sp->iores.exch_cnt = 1;
sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
if (qla_get_fw_resources(sp->qpair, &sp->iores))
goto queuing_error;
if (req->cnt < (req_cnt + 2)) {
if (IS_SHADOW_REG_CAPABLE(ha)) {
cnt = *req->out_ptr;
} else {
cnt = rd_reg_dword_relaxed(req->req_q_out);
if (qla2x00_check_reg16_for_disconnect(vha, cnt))
goto queuing_error;
}
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
status |= QDSS_GOT_Q_SPACE;
/* Build header part of command packet (excluding the OPCODE). */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
/* Fill-in common area */
cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
/* Total Data and protection segment(s) */
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Build IOCB segments and adjust for data protection segments */
if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
QLA_SUCCESS)
goto queuing_error;
cmd_pkt->entry_count = (uint8_t)req_cnt;
cmd_pkt->timeout = cpu_to_le16(0);
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
sp->qpair->cmd_cnt++;
/* Set chip new ring index. */
wrt_reg_dword(req->req_q_in, req->ring_index);
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_SUCCESS;
queuing_error:
if (status & QDSS_GOT_Q_SPACE) {
req->outstanding_cmds[handle] = NULL;
req->cnt += req_cnt;
}
/* Cleanup will be performed by the caller (queuecommand) */
qla_put_fw_resources(sp->qpair, &sp->iores);
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_FUNCTION_FAILED;
}
/* Generic Control-SRB manipulation functions. */
/* hardware_lock assumed to be held. */
void *
__qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp)
{
scsi_qla_host_t *vha = qpair->vha;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = qpair->req;
device_reg_t *reg = ISP_QUE_REG(ha, req->id);
uint32_t handle;
request_t *pkt;
uint16_t cnt, req_cnt;
pkt = NULL;
req_cnt = 1;
handle = 0;
if (sp && (sp->type != SRB_SCSI_CMD)) {
/* Adjust entry-counts as needed. */
req_cnt = sp->iocbs;
}
/* Check for room on request queue. */
if (req->cnt < req_cnt + 2) {
if (qpair->use_shadow_reg)
cnt = *req->out_ptr;
else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha))
cnt = rd_reg_dword(®->isp25mq.req_q_out);
else if (IS_P3P_TYPE(ha))
cnt = rd_reg_dword(reg->isp82.req_q_out);
else if (IS_FWI2_CAPABLE(ha))
cnt = rd_reg_dword(®->isp24.req_q_out);
else if (IS_QLAFX00(ha))
cnt = rd_reg_dword(®->ispfx00.req_q_out);
else
cnt = qla2x00_debounce_register(
ISP_REQ_Q_OUT(ha, ®->isp));
if (!qpair->use_shadow_reg && cnt == ISP_REG16_DISCONNECT) {
qla_schedule_eeh_work(vha);
return NULL;
}
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
}
if (req->cnt < req_cnt + 2)
goto queuing_error;
if (sp) {
handle = qla2xxx_get_next_handle(req);
if (handle == 0) {
ql_log(ql_log_warn, vha, 0x700b,
"No room on outstanding cmd array.\n");
goto queuing_error;
}
/* Prep command array. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
}
/* Prep packet */
req->cnt -= req_cnt;
pkt = req->ring_ptr;
memset(pkt, 0, REQUEST_ENTRY_SIZE);
if (IS_QLAFX00(ha)) {
wrt_reg_byte((u8 __force __iomem *)&pkt->entry_count, req_cnt);
wrt_reg_dword((__le32 __force __iomem *)&pkt->handle, handle);
} else {
pkt->entry_count = req_cnt;
pkt->handle = handle;
}
return pkt;
queuing_error:
qpair->tgt_counters.num_alloc_iocb_failed++;
return pkt;
}
void *
qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp)
{
scsi_qla_host_t *vha = qpair->vha;
if (qla2x00_reset_active(vha))
return NULL;
return __qla2x00_alloc_iocbs(qpair, sp);
}
void *
qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp)
{
return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp);
}
static void
qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio)
{
struct srb_iocb *lio = &sp->u.iocb_cmd;
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) {
logio->control_flags |= cpu_to_le16(LCF_NVME_PRLI);
if (sp->vha->flags.nvme_first_burst)
logio->io_parameter[0] =
cpu_to_le32(NVME_PRLI_SP_FIRST_BURST);
if (sp->vha->flags.nvme2_enabled) {
/* Set service parameter BIT_7 for NVME CONF support */
logio->io_parameter[0] |=
cpu_to_le32(NVME_PRLI_SP_CONF);
/* Set service parameter BIT_8 for SLER support */
logio->io_parameter[0] |=
cpu_to_le32(NVME_PRLI_SP_SLER);
/* Set service parameter BIT_9 for PI control support */
logio->io_parameter[0] |=
cpu_to_le32(NVME_PRLI_SP_PI_CTRL);
}
}
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
logio->port_id[0] = sp->fcport->d_id.b.al_pa;
logio->port_id[1] = sp->fcport->d_id.b.area;
logio->port_id[2] = sp->fcport->d_id.b.domain;
logio->vp_index = sp->vha->vp_idx;
}
static void
qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
{
struct srb_iocb *lio = &sp->u.iocb_cmd;
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) {
logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
} else {
logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI)
logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI);
if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI)
logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI);
if (lio->u.logio.flags & SRB_LOGIN_FCSP) {
logio->control_flags |=
cpu_to_le16(LCF_COMMON_FEAT | LCF_SKIP_PRLI);
logio->io_parameter[0] =
cpu_to_le32(LIO_COMM_FEAT_FCSP | LIO_COMM_FEAT_CIO);
}
}
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
logio->port_id[0] = sp->fcport->d_id.b.al_pa;
logio->port_id[1] = sp->fcport->d_id.b.area;
logio->port_id[2] = sp->fcport->d_id.b.domain;
logio->vp_index = sp->vha->vp_idx;
}
static void
qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx)
{
struct qla_hw_data *ha = sp->vha->hw;
struct srb_iocb *lio = &sp->u.iocb_cmd;
uint16_t opts;
mbx->entry_type = MBX_IOCB_TYPE;
SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT);
opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0;
opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0;
if (HAS_EXTENDED_IDS(ha)) {
mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
mbx->mb10 = cpu_to_le16(opts);
} else {
mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts);
}
mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
sp->fcport->d_id.b.al_pa);
mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
}
static void
qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio)
{
u16 control_flags = LCF_COMMAND_LOGO;
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
if (sp->fcport->explicit_logout) {
control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT;
} else {
control_flags |= LCF_IMPL_LOGO;
if (!sp->fcport->keep_nport_handle)
control_flags |= LCF_FREE_NPORT;
}
logio->control_flags = cpu_to_le16(control_flags);
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
logio->port_id[0] = sp->fcport->d_id.b.al_pa;
logio->port_id[1] = sp->fcport->d_id.b.area;
logio->port_id[2] = sp->fcport->d_id.b.domain;
logio->vp_index = sp->vha->vp_idx;
}
static void
qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx)
{
struct qla_hw_data *ha = sp->vha->hw;
mbx->entry_type = MBX_IOCB_TYPE;
SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT);
mbx->mb1 = HAS_EXTENDED_IDS(ha) ?
cpu_to_le16(sp->fcport->loop_id) :
cpu_to_le16(sp->fcport->loop_id << 8);
mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
sp->fcport->d_id.b.al_pa);
mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
/* Implicit: mbx->mbx10 = 0. */
}
static void
qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio)
{
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC);
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
logio->vp_index = sp->vha->vp_idx;
}
static void
qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx)
{
struct qla_hw_data *ha = sp->vha->hw;
mbx->entry_type = MBX_IOCB_TYPE;
SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE);
if (HAS_EXTENDED_IDS(ha)) {
mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
mbx->mb10 = cpu_to_le16(BIT_0);
} else {
mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0);
}
mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma));
mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma));
mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma)));
mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma)));
mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
}
static void
qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
{
uint32_t flags;
uint64_t lun;
struct fc_port *fcport = sp->fcport;
scsi_qla_host_t *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct srb_iocb *iocb = &sp->u.iocb_cmd;
struct req_que *req = sp->qpair->req;
flags = iocb->u.tmf.flags;
lun = iocb->u.tmf.lun;
tsk->entry_type = TSK_MGMT_IOCB_TYPE;
tsk->entry_count = 1;
tsk->handle = make_handle(req->id, tsk->handle);
tsk->nport_handle = cpu_to_le16(fcport->loop_id);
tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
tsk->control_flags = cpu_to_le32(flags);
tsk->port_id[0] = fcport->d_id.b.al_pa;
tsk->port_id[1] = fcport->d_id.b.area;
tsk->port_id[2] = fcport->d_id.b.domain;
tsk->vp_index = fcport->vha->vp_idx;
if (flags & (TCF_LUN_RESET | TCF_ABORT_TASK_SET|
TCF_CLEAR_TASK_SET|TCF_CLEAR_ACA)) {
int_to_scsilun(lun, &tsk->lun);
host_to_fcp_swap((uint8_t *)&tsk->lun,
sizeof(tsk->lun));
}
}
static void
qla2x00_async_done(struct srb *sp, int res)
{
if (del_timer(&sp->u.iocb_cmd.timer)) {
/*
* Successfully cancelled the timeout handler
* ref: TMR
*/
if (kref_put(&sp->cmd_kref, qla2x00_sp_release))
return;
}
sp->async_done(sp, res);
}
void
qla2x00_sp_release(struct kref *kref)
{
struct srb *sp = container_of(kref, struct srb, cmd_kref);
sp->free(sp);
}
void
qla2x00_init_async_sp(srb_t *sp, unsigned long tmo,
void (*done)(struct srb *sp, int res))
{
timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
sp->done = qla2x00_async_done;
sp->async_done = done;
sp->free = qla2x00_sp_free;
sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD)
init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp);
sp->start_timer = 1;
}
static void qla2x00_els_dcmd_sp_free(srb_t *sp)
{
struct srb_iocb *elsio = &sp->u.iocb_cmd;
kfree(sp->fcport);
if (elsio->u.els_logo.els_logo_pyld)
dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE,
elsio->u.els_logo.els_logo_pyld,
elsio->u.els_logo.els_logo_pyld_dma);
del_timer(&elsio->timer);
qla2x00_rel_sp(sp);
}
static void
qla2x00_els_dcmd_iocb_timeout(void *data)
{
srb_t *sp = data;
fc_port_t *fcport = sp->fcport;
struct scsi_qla_host *vha = sp->vha;
struct srb_iocb *lio = &sp->u.iocb_cmd;
unsigned long flags = 0;
int res, h;
ql_dbg(ql_dbg_io, vha, 0x3069,
"%s Timeout, hdl=%x, portid=%02x%02x%02x\n",
sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa);
/* Abort the exchange */
res = qla24xx_async_abort_cmd(sp, false);
if (res) {
ql_dbg(ql_dbg_io, vha, 0x3070,
"mbx abort_command failed.\n");
spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
if (sp->qpair->req->outstanding_cmds[h] == sp) {
sp->qpair->req->outstanding_cmds[h] = NULL;
break;
}
}
spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
complete(&lio->u.els_logo.comp);
} else {
ql_dbg(ql_dbg_io, vha, 0x3071,
"mbx abort_command success.\n");
}
}
static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res)
{
fc_port_t *fcport = sp->fcport;
struct srb_iocb *lio = &sp->u.iocb_cmd;
struct scsi_qla_host *vha = sp->vha;
ql_dbg(ql_dbg_io, vha, 0x3072,
"%s hdl=%x, portid=%02x%02x%02x done\n",
sp->name, sp->handle, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
complete(&lio->u.els_logo.comp);
}
int
qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
port_id_t remote_did)
{
srb_t *sp;
fc_port_t *fcport = NULL;
struct srb_iocb *elsio = NULL;
struct qla_hw_data *ha = vha->hw;
struct els_logo_payload logo_pyld;
int rval = QLA_SUCCESS;
fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (!fcport) {
ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n");
return -ENOMEM;
}
/* Alloc SRB structure
* ref: INIT
*/
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp) {
kfree(fcport);
ql_log(ql_log_info, vha, 0x70e6,
"SRB allocation failed\n");
return -ENOMEM;
}
elsio = &sp->u.iocb_cmd;
fcport->loop_id = 0xFFFF;
fcport->d_id.b.domain = remote_did.b.domain;
fcport->d_id.b.area = remote_did.b.area;
fcport->d_id.b.al_pa = remote_did.b.al_pa;
ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n",
fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
sp->type = SRB_ELS_DCMD;
sp->name = "ELS_DCMD";
sp->fcport = fcport;
qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT,
qla2x00_els_dcmd_sp_done);
sp->free = qla2x00_els_dcmd_sp_free;
sp->u.iocb_cmd.timeout = qla2x00_els_dcmd_iocb_timeout;
init_completion(&sp->u.iocb_cmd.u.els_logo.comp);
elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev,
DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma,
GFP_KERNEL);
if (!elsio->u.els_logo.els_logo_pyld) {
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return QLA_FUNCTION_FAILED;
}
memset(&logo_pyld, 0, sizeof(struct els_logo_payload));
elsio->u.els_logo.els_cmd = els_opcode;
logo_pyld.opcode = els_opcode;
logo_pyld.s_id[0] = vha->d_id.b.al_pa;
logo_pyld.s_id[1] = vha->d_id.b.area;
logo_pyld.s_id[2] = vha->d_id.b.domain;
host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t));
memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE);
memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld,
sizeof(struct els_logo_payload));
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:");
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a,
elsio->u.els_logo.els_logo_pyld,
sizeof(*elsio->u.els_logo.els_logo_pyld));
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return QLA_FUNCTION_FAILED;
}
ql_dbg(ql_dbg_io, vha, 0x3074,
"%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n",
sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa);
wait_for_completion(&elsio->u.els_logo.comp);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return rval;
}
static void
qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
{
scsi_qla_host_t *vha = sp->vha;
struct srb_iocb *elsio = &sp->u.iocb_cmd;
els_iocb->entry_type = ELS_IOCB_TYPE;
els_iocb->entry_count = 1;
els_iocb->sys_define = 0;
els_iocb->entry_status = 0;
els_iocb->handle = sp->handle;
els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
els_iocb->tx_dsd_count = cpu_to_le16(1);
els_iocb->vp_index = vha->vp_idx;
els_iocb->sof_type = EST_SOFI3;
els_iocb->rx_dsd_count = 0;
els_iocb->opcode = elsio->u.els_logo.els_cmd;
els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa;
els_iocb->d_id[1] = sp->fcport->d_id.b.area;
els_iocb->d_id[2] = sp->fcport->d_id.b.domain;
/* For SID the byte order is different than DID */
els_iocb->s_id[1] = vha->d_id.b.al_pa;
els_iocb->s_id[2] = vha->d_id.b.area;
els_iocb->s_id[0] = vha->d_id.b.domain;
if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) {
if (vha->hw->flags.edif_enabled)
els_iocb->control_flags = cpu_to_le16(ECF_SEC_LOGIN);
else
els_iocb->control_flags = 0;
els_iocb->tx_byte_count = els_iocb->tx_len =
cpu_to_le32(sizeof(struct els_plogi_payload));
put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma,
&els_iocb->tx_address);
els_iocb->rx_dsd_count = cpu_to_le16(1);
els_iocb->rx_byte_count = els_iocb->rx_len =
cpu_to_le32(sizeof(struct els_plogi_payload));
put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma,
&els_iocb->rx_address);
ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073,
"PLOGI ELS IOCB:\n");
ql_dump_buffer(ql_log_info, vha, 0x0109,
(uint8_t *)els_iocb,
sizeof(*els_iocb));
} else {
els_iocb->tx_byte_count =
cpu_to_le32(sizeof(struct els_logo_payload));
put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma,
&els_iocb->tx_address);
els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload));
els_iocb->rx_byte_count = 0;
els_iocb->rx_address = 0;
els_iocb->rx_len = 0;
ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076,
"LOGO ELS IOCB:");
ql_dump_buffer(ql_log_info, vha, 0x010b,
els_iocb,
sizeof(*els_iocb));
}
sp->vha->qla_stats.control_requests++;
}
void
qla2x00_els_dcmd2_iocb_timeout(void *data)
{
srb_t *sp = data;
fc_port_t *fcport = sp->fcport;
struct scsi_qla_host *vha = sp->vha;
unsigned long flags = 0;
int res, h;
ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069,
"%s hdl=%x ELS Timeout, %8phC portid=%06x\n",
sp->name, sp->handle, fcport->port_name, fcport->d_id.b24);
/* Abort the exchange */
res = qla24xx_async_abort_cmd(sp, false);
ql_dbg(ql_dbg_io, vha, 0x3070,
"mbx abort_command %s\n",
(res == QLA_SUCCESS) ? "successful" : "failed");
if (res) {
spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
if (sp->qpair->req->outstanding_cmds[h] == sp) {
sp->qpair->req->outstanding_cmds[h] = NULL;
break;
}
}
spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
sp->done(sp, QLA_FUNCTION_TIMEOUT);
}
}
void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi)
{
if (els_plogi->els_plogi_pyld)
dma_free_coherent(&vha->hw->pdev->dev,
els_plogi->tx_size,
els_plogi->els_plogi_pyld,
els_plogi->els_plogi_pyld_dma);
if (els_plogi->els_resp_pyld)
dma_free_coherent(&vha->hw->pdev->dev,
els_plogi->rx_size,
els_plogi->els_resp_pyld,
els_plogi->els_resp_pyld_dma);
}
static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res)
{
fc_port_t *fcport = sp->fcport;
struct srb_iocb *lio = &sp->u.iocb_cmd;
struct scsi_qla_host *vha = sp->vha;
struct event_arg ea;
struct qla_work_evt *e;
struct fc_port *conflict_fcport;
port_id_t cid; /* conflict Nport id */
const __le32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status;
u16 lid;
ql_dbg(ql_dbg_disc, vha, 0x3072,
"%s ELS done rc %d hdl=%x, portid=%06x %8phC\n",
sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name);
fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
/* For edif, set logout on delete to ensure any residual key from FW is flushed.*/
fcport->logout_on_delete = 1;
fcport->chip_reset = vha->hw->base_qpair->chip_reset;
if (sp->flags & SRB_WAKEUP_ON_COMP)
complete(&lio->u.els_plogi.comp);
else {
switch (le32_to_cpu(fw_status[0])) {
case CS_DATA_UNDERRUN:
case CS_COMPLETE:
memset(&ea, 0, sizeof(ea));
ea.fcport = fcport;
ea.rc = res;
qla_handle_els_plogi_done(vha, &ea);
break;
case CS_IOCB_ERROR:
switch (le32_to_cpu(fw_status[1])) {
case LSC_SCODE_PORTID_USED:
lid = le32_to_cpu(fw_status[2]) & 0xffff;
qlt_find_sess_invalidate_other(vha,
wwn_to_u64(fcport->port_name),
fcport->d_id, lid, &conflict_fcport);
if (conflict_fcport) {
/*
* Another fcport shares the same
* loop_id & nport id; conflict
* fcport needs to finish cleanup
* before this fcport can proceed
* to login.
*/
conflict_fcport->conflict = fcport;
fcport->login_pause = 1;
ql_dbg(ql_dbg_disc, vha, 0x20ed,
"%s %d %8phC pid %06x inuse with lid %#x.\n",
__func__, __LINE__,
fcport->port_name,
fcport->d_id.b24, lid);
} else {
ql_dbg(ql_dbg_disc, vha, 0x20ed,
"%s %d %8phC pid %06x inuse with lid %#x sched del\n",
__func__, __LINE__,
fcport->port_name,
fcport->d_id.b24, lid);
qla2x00_clear_loop_id(fcport);
set_bit(lid, vha->hw->loop_id_map);
fcport->loop_id = lid;
fcport->keep_nport_handle = 0;
qlt_schedule_sess_for_deletion(fcport);
}
break;
case LSC_SCODE_NPORT_USED:
cid.b.domain = (le32_to_cpu(fw_status[2]) >> 16)
& 0xff;
cid.b.area = (le32_to_cpu(fw_status[2]) >> 8)
& 0xff;
cid.b.al_pa = le32_to_cpu(fw_status[2]) & 0xff;
cid.b.rsvd_1 = 0;
ql_dbg(ql_dbg_disc, vha, 0x20ec,
"%s %d %8phC lid %#x in use with pid %06x post gnl\n",
__func__, __LINE__, fcport->port_name,
fcport->loop_id, cid.b24);
set_bit(fcport->loop_id,
vha->hw->loop_id_map);
fcport->loop_id = FC_NO_LOOP_ID;
qla24xx_post_gnl_work(vha, fcport);
break;
case LSC_SCODE_NOXCB:
vha->hw->exch_starvation++;
if (vha->hw->exch_starvation > 5) {
ql_log(ql_log_warn, vha, 0xd046,
"Exchange starvation. Resetting RISC\n");
vha->hw->exch_starvation = 0;
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
qla2xxx_wake_dpc(vha);
break;
}
fallthrough;
default:
ql_dbg(ql_dbg_disc, vha, 0x20eb,
"%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n",
__func__, sp->fcport->port_name,
fw_status[0], fw_status[1], fw_status[2]);
fcport->flags &= ~FCF_ASYNC_SENT;
qlt_schedule_sess_for_deletion(fcport);
break;
}
break;
default:
ql_dbg(ql_dbg_disc, vha, 0x20eb,
"%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n",
__func__, sp->fcport->port_name,
fw_status[0], fw_status[1], fw_status[2]);
sp->fcport->flags &= ~FCF_ASYNC_SENT;
qlt_schedule_sess_for_deletion(fcport);
break;
}
e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
if (!e) {
struct srb_iocb *elsio = &sp->u.iocb_cmd;
qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return;
}
e->u.iosb.sp = sp;
qla2x00_post_work(vha, e);
}
}
int
qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode,
fc_port_t *fcport, bool wait)
{
srb_t *sp;
struct srb_iocb *elsio = NULL;
struct qla_hw_data *ha = vha->hw;
int rval = QLA_SUCCESS;
void *ptr, *resp_ptr;
/* Alloc SRB structure
* ref: INIT
*/
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp) {
ql_log(ql_log_info, vha, 0x70e6,
"SRB allocation failed\n");
fcport->flags &= ~FCF_ASYNC_ACTIVE;
return -ENOMEM;
}
fcport->flags |= FCF_ASYNC_SENT;
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
elsio = &sp->u.iocb_cmd;
ql_dbg(ql_dbg_io, vha, 0x3073,
"%s Enter: PLOGI portid=%06x\n", __func__, fcport->d_id.b24);
if (wait)
sp->flags = SRB_WAKEUP_ON_COMP;
sp->type = SRB_ELS_DCMD;
sp->name = "ELS_DCMD";
sp->fcport = fcport;
qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT + 2,
qla2x00_els_dcmd2_sp_done);
sp->u.iocb_cmd.timeout = qla2x00_els_dcmd2_iocb_timeout;
elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE;
ptr = elsio->u.els_plogi.els_plogi_pyld =
dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size,
&elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL);
if (!elsio->u.els_plogi.els_plogi_pyld) {
rval = QLA_FUNCTION_FAILED;
goto out;
}
resp_ptr = elsio->u.els_plogi.els_resp_pyld =
dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size,
&elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL);
if (!elsio->u.els_plogi.els_resp_pyld) {
rval = QLA_FUNCTION_FAILED;
goto out;
}
ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr);
memset(ptr, 0, sizeof(struct els_plogi_payload));
memset(resp_ptr, 0, sizeof(struct els_plogi_payload));
memcpy(elsio->u.els_plogi.els_plogi_pyld->data,
(void *)&ha->plogi_els_payld + offsetof(struct fc_els_flogi, fl_csp),
sizeof(ha->plogi_els_payld) - offsetof(struct fc_els_flogi, fl_csp));
elsio->u.els_plogi.els_cmd = els_opcode;
elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode;
if (els_opcode == ELS_DCMD_PLOGI && DBELL_ACTIVE(vha)) {
struct fc_els_flogi *p = ptr;
p->fl_csp.sp_features |= cpu_to_be16(FC_SP_FT_SEC);
}
ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n");
ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109,
(uint8_t *)elsio->u.els_plogi.els_plogi_pyld,
sizeof(*elsio->u.els_plogi.els_plogi_pyld));
init_completion(&elsio->u.els_plogi.comp);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
} else {
ql_dbg(ql_dbg_disc, vha, 0x3074,
"%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n",
sp->name, sp->handle, fcport->loop_id,
fcport->d_id.b24, vha->d_id.b24);
}
if (wait) {
wait_for_completion(&elsio->u.els_plogi.comp);
if (elsio->u.els_plogi.comp_status != CS_COMPLETE)
rval = QLA_FUNCTION_FAILED;
} else {
goto done;
}
out:
fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
/* it is assume qpair lock is held */
void qla_els_pt_iocb(struct scsi_qla_host *vha,
struct els_entry_24xx *els_iocb,
struct qla_els_pt_arg *a)
{
els_iocb->entry_type = ELS_IOCB_TYPE;
els_iocb->entry_count = 1;
els_iocb->sys_define = 0;
els_iocb->entry_status = 0;
els_iocb->handle = QLA_SKIP_HANDLE;
els_iocb->nport_handle = a->nport_handle;
els_iocb->rx_xchg_address = a->rx_xchg_address;
els_iocb->tx_dsd_count = cpu_to_le16(1);
els_iocb->vp_index = a->vp_idx;
els_iocb->sof_type = EST_SOFI3;
els_iocb->rx_dsd_count = cpu_to_le16(0);
els_iocb->opcode = a->els_opcode;
els_iocb->d_id[0] = a->did.b.al_pa;
els_iocb->d_id[1] = a->did.b.area;
els_iocb->d_id[2] = a->did.b.domain;
/* For SID the byte order is different than DID */
els_iocb->s_id[1] = vha->d_id.b.al_pa;
els_iocb->s_id[2] = vha->d_id.b.area;
els_iocb->s_id[0] = vha->d_id.b.domain;
els_iocb->control_flags = cpu_to_le16(a->control_flags);
els_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count);
els_iocb->tx_len = cpu_to_le32(a->tx_len);
put_unaligned_le64(a->tx_addr, &els_iocb->tx_address);
els_iocb->rx_byte_count = cpu_to_le32(a->rx_byte_count);
els_iocb->rx_len = cpu_to_le32(a->rx_len);
put_unaligned_le64(a->rx_addr, &els_iocb->rx_address);
}
static void
qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
{
struct bsg_job *bsg_job = sp->u.bsg_job;
struct fc_bsg_request *bsg_request = bsg_job->request;
els_iocb->entry_type = ELS_IOCB_TYPE;
els_iocb->entry_count = 1;
els_iocb->sys_define = 0;
els_iocb->entry_status = 0;
els_iocb->handle = sp->handle;
els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
els_iocb->vp_index = sp->vha->vp_idx;
els_iocb->sof_type = EST_SOFI3;
els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
els_iocb->opcode =
sp->type == SRB_ELS_CMD_RPT ?
bsg_request->rqst_data.r_els.els_code :
bsg_request->rqst_data.h_els.command_code;
els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa;
els_iocb->d_id[1] = sp->fcport->d_id.b.area;
els_iocb->d_id[2] = sp->fcport->d_id.b.domain;
els_iocb->control_flags = 0;
els_iocb->rx_byte_count =
cpu_to_le32(bsg_job->reply_payload.payload_len);
els_iocb->tx_byte_count =
cpu_to_le32(bsg_job->request_payload.payload_len);
put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
&els_iocb->tx_address);
els_iocb->tx_len = cpu_to_le32(sg_dma_len
(bsg_job->request_payload.sg_list));
put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
&els_iocb->rx_address);
els_iocb->rx_len = cpu_to_le32(sg_dma_len
(bsg_job->reply_payload.sg_list));
sp->vha->qla_stats.control_requests++;
}
static void
qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
{
uint16_t avail_dsds;
struct dsd64 *cur_dsd;
struct scatterlist *sg;
int index;
uint16_t tot_dsds;
scsi_qla_host_t *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
struct bsg_job *bsg_job = sp->u.bsg_job;
int entry_count = 1;
memset(ct_iocb, 0, sizeof(ms_iocb_entry_t));
ct_iocb->entry_type = CT_IOCB_TYPE;
ct_iocb->entry_status = 0;
ct_iocb->handle1 = sp->handle;
SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id);
ct_iocb->status = cpu_to_le16(0);
ct_iocb->control_flags = cpu_to_le16(0);
ct_iocb->timeout = 0;
ct_iocb->cmd_dsd_count =
cpu_to_le16(bsg_job->request_payload.sg_cnt);
ct_iocb->total_dsd_count =
cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
ct_iocb->req_bytecount =
cpu_to_le32(bsg_job->request_payload.payload_len);
ct_iocb->rsp_bytecount =
cpu_to_le32(bsg_job->reply_payload.payload_len);
put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
&ct_iocb->req_dsd.address);
ct_iocb->req_dsd.length = ct_iocb->req_bytecount;
put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
&ct_iocb->rsp_dsd.address);
ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount;
avail_dsds = 1;
cur_dsd = &ct_iocb->rsp_dsd;
index = 0;
tot_dsds = bsg_job->reply_payload.sg_cnt;
for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
cont_a64_entry_t *cont_pkt;
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Cont.
* Type 1 IOCB.
*/
cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
vha->hw->req_q_map[0]);
cur_dsd = cont_pkt->dsd;
avail_dsds = 5;
entry_count++;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
ct_iocb->entry_count = entry_count;
sp->vha->qla_stats.control_requests++;
}
static void
qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
{
uint16_t avail_dsds;
struct dsd64 *cur_dsd;
struct scatterlist *sg;
int index;
uint16_t cmd_dsds, rsp_dsds;
scsi_qla_host_t *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
struct bsg_job *bsg_job = sp->u.bsg_job;
int entry_count = 1;
cont_a64_entry_t *cont_pkt = NULL;
ct_iocb->entry_type = CT_IOCB_TYPE;
ct_iocb->entry_status = 0;
ct_iocb->sys_define = 0;
ct_iocb->handle = sp->handle;
ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
ct_iocb->vp_index = sp->vha->vp_idx;
ct_iocb->comp_status = cpu_to_le16(0);
cmd_dsds = bsg_job->request_payload.sg_cnt;
rsp_dsds = bsg_job->reply_payload.sg_cnt;
ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds);
ct_iocb->timeout = 0;
ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds);
ct_iocb->cmd_byte_count =
cpu_to_le32(bsg_job->request_payload.payload_len);
avail_dsds = 2;
cur_dsd = ct_iocb->dsd;
index = 0;
for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) {
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Cont.
* Type 1 IOCB.
*/
cont_pkt = qla2x00_prep_cont_type1_iocb(
vha, ha->req_q_map[0]);
cur_dsd = cont_pkt->dsd;
avail_dsds = 5;
entry_count++;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
index = 0;
for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) {
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Cont.
* Type 1 IOCB.
*/
cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
ha->req_q_map[0]);
cur_dsd = cont_pkt->dsd;
avail_dsds = 5;
entry_count++;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
ct_iocb->entry_count = entry_count;
}
/*
* qla82xx_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
int
qla82xx_start_scsi(srb_t *sp)
{
int nseg;
unsigned long flags;
struct scsi_cmnd *cmd;
uint32_t *clr_ptr;
uint32_t handle;
uint16_t cnt;
uint16_t req_cnt;
uint16_t tot_dsds;
struct device_reg_82xx __iomem *reg;
uint32_t dbval;
__be32 *fcp_dl;
uint8_t additional_cdb_len;
struct ct6_dsd *ctx;
struct scsi_qla_host *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct qla_qpair *qpair = sp->qpair;
/* Setup device pointers. */
reg = &ha->iobase->isp82;
cmd = GET_CMD_SP(sp);
req = vha->req;
rsp = ha->rsp_q_map[0];
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
dbval = 0x04 | (ha->portnum << 5);
/* Send marker if required */
if (vha->marker_needed != 0) {
if (qla2x00_marker(vha, ha->base_qpair,
0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x300c,
"qla2x00_marker failed for cmd=%p.\n", cmd);
return QLA_FUNCTION_FAILED;
}
vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
handle = qla2xxx_get_next_handle(req);
if (handle == 0)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
} else
nseg = 0;
tot_dsds = nseg;
if (tot_dsds > ql2xshiftctondsd) {
struct cmd_type_6 *cmd_pkt;
uint16_t more_dsd_lists = 0;
struct dsd_dma *dsd_ptr;
uint16_t i;
more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
if ((more_dsd_lists + qpair->dsd_inuse) >= NUM_DSD_CHAIN) {
ql_dbg(ql_dbg_io, vha, 0x300d,
"Num of DSD list %d is than %d for cmd=%p.\n",
more_dsd_lists + qpair->dsd_inuse, NUM_DSD_CHAIN,
cmd);
goto queuing_error;
}
if (more_dsd_lists <= qpair->dsd_avail)
goto sufficient_dsds;
else
more_dsd_lists -= qpair->dsd_avail;
for (i = 0; i < more_dsd_lists; i++) {
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
if (!dsd_ptr) {
ql_log(ql_log_fatal, vha, 0x300e,
"Failed to allocate memory for dsd_dma "
"for cmd=%p.\n", cmd);
goto queuing_error;
}
dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
if (!dsd_ptr->dsd_addr) {
kfree(dsd_ptr);
ql_log(ql_log_fatal, vha, 0x300f,
"Failed to allocate memory for dsd_addr "
"for cmd=%p.\n", cmd);
goto queuing_error;
}
list_add_tail(&dsd_ptr->list, &qpair->dsd_list);
qpair->dsd_avail++;
}
sufficient_dsds:
req_cnt = 1;
if (req->cnt < (req_cnt + 2)) {
cnt = (uint16_t)rd_reg_dword_relaxed(
®->req_q_out[0]);
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
ctx = &sp->u.scmd.ct6_ctx;
memset(ctx, 0, sizeof(struct ct6_dsd));
ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool,
GFP_ATOMIC, &ctx->fcp_cmnd_dma);
if (!ctx->fcp_cmnd) {
ql_log(ql_log_fatal, vha, 0x3011,
"Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
goto queuing_error;
}
/* Initialize the DSD list and dma handle */
INIT_LIST_HEAD(&ctx->dsd_list);
ctx->dsd_use_cnt = 0;
if (cmd->cmd_len > 16) {
additional_cdb_len = cmd->cmd_len - 16;
if ((cmd->cmd_len % 4) != 0) {
/* SCSI command bigger than 16 bytes must be
* multiple of 4
*/
ql_log(ql_log_warn, vha, 0x3012,
"scsi cmd len %d not multiple of 4 "
"for cmd=%p.\n", cmd->cmd_len, cmd);
goto queuing_error_fcp_cmnd;
}
ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
} else {
additional_cdb_len = 0;
ctx->fcp_cmnd_len = 12 + 16 + 4;
}
cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
/* Zero out remaining portion of packet. */
/* tagged queuing modifier -- default is TSK_SIMPLE (0). */
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->vha->vp_idx;
/* Build IOCB segments */
if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
goto queuing_error_fcp_cmnd;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
/* build FCP_CMND IU */
int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun);
ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
if (cmd->sc_data_direction == DMA_TO_DEVICE)
ctx->fcp_cmnd->additional_cdb_len |= 1;
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
ctx->fcp_cmnd->additional_cdb_len |= 2;
/* Populate the FCP_PRIO. */
if (ha->flags.fcp_prio_enabled)
ctx->fcp_cmnd->task_attribute |=
sp->fcport->fcp_prio << 3;
memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 +
additional_cdb_len);
*fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
put_unaligned_le64(ctx->fcp_cmnd_dma,
&cmd_pkt->fcp_cmnd_dseg_address);
sp->flags |= SRB_FCP_CMND_DMA_VALID;
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
/* Specify response queue number where
* completion should happen
*/
cmd_pkt->entry_status = (uint8_t) rsp->id;
} else {
struct cmd_type_7 *cmd_pkt;
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
if (req->cnt < (req_cnt + 2)) {
cnt = (uint16_t)rd_reg_dword_relaxed(
®->req_q_out[0]);
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
}
if (req->cnt < (req_cnt + 2))
goto queuing_error;
cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
/* Zero out remaining portion of packet. */
/* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->vha->vp_idx;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
sizeof(cmd_pkt->lun));
/* Populate the FCP_PRIO. */
if (ha->flags.fcp_prio_enabled)
cmd_pkt->task |= sp->fcport->fcp_prio << 3;
/* Load SCSI command packet. */
memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
/* Specify response queue number where
* completion should happen.
*/
cmd_pkt->entry_status = (uint8_t) rsp->id;
}
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
/* write, read and verify logic */
dbval = dbval | (req->id << 8) | (req->ring_index << 16);
if (ql2xdbwr)
qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval);
else {
wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
wmb();
while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) {
wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
wmb();
}
}
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
queuing_error_fcp_cmnd:
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
if (sp->u.scmd.crc_ctx) {
mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool);
sp->u.scmd.crc_ctx = NULL;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_FUNCTION_FAILED;
}
static void
qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
{
struct srb_iocb *aio = &sp->u.iocb_cmd;
scsi_qla_host_t *vha = sp->vha;
struct req_que *req = sp->qpair->req;
srb_t *orig_sp = sp->cmd_sp;
memset(abt_iocb, 0, sizeof(struct abort_entry_24xx));
abt_iocb->entry_type = ABORT_IOCB_TYPE;
abt_iocb->entry_count = 1;
abt_iocb->handle = make_handle(req->id, sp->handle);
if (sp->fcport) {
abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
abt_iocb->port_id[1] = sp->fcport->d_id.b.area;
abt_iocb->port_id[2] = sp->fcport->d_id.b.domain;
}
abt_iocb->handle_to_abort =
make_handle(le16_to_cpu(aio->u.abt.req_que_no),
aio->u.abt.cmd_hndl);
abt_iocb->vp_index = vha->vp_idx;
abt_iocb->req_que_no = aio->u.abt.req_que_no;
/* need to pass original sp */
if (orig_sp)
qla_nvme_abort_set_option(abt_iocb, orig_sp);
/* Send the command to the firmware */
wmb();
}
static void
qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx)
{
int i, sz;
mbx->entry_type = MBX_IOCB_TYPE;
mbx->handle = sp->handle;
sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb));
for (i = 0; i < sz; i++)
mbx->mb[i] = sp->u.iocb_cmd.u.mbx.out_mb[i];
}
static void
qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt)
{
sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt;
qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg);
ct_pkt->handle = sp->handle;
}
static void qla2x00_send_notify_ack_iocb(srb_t *sp,
struct nack_to_isp *nack)
{
struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy;
nack->entry_type = NOTIFY_ACK_TYPE;
nack->entry_count = 1;
nack->ox_id = ntfy->ox_id;
nack->u.isp24.handle = sp->handle;
nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
nack->u.isp24.flags = ntfy->u.isp24.flags &
cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
}
nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
nack->u.isp24.status = ntfy->u.isp24.status;
nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
nack->u.isp24.srr_flags = 0;
nack->u.isp24.srr_reject_code = 0;
nack->u.isp24.srr_reject_code_expl = 0;
nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
if (ntfy->u.isp24.status_subcode == ELS_PLOGI &&
(le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP) &&
sp->vha->hw->flags.edif_enabled) {
ql_dbg(ql_dbg_disc, sp->vha, 0x3074,
"%s PLOGI NACK sent with FC SECURITY bit, hdl=%x, loopid=%x, to pid %06x\n",
sp->name, sp->handle, sp->fcport->loop_id,
sp->fcport->d_id.b24);
nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP);
}
}
/*
* Build NVME LS request
*/
static void
qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt)
{
struct srb_iocb *nvme;
nvme = &sp->u.iocb_cmd;
cmd_pkt->entry_type = PT_LS4_REQUEST;
cmd_pkt->entry_count = 1;
cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec);
cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
if (sp->unsol_rsp) {
cmd_pkt->control_flags =
cpu_to_le16(CF_LS4_RESPONDER << CF_LS4_SHIFT);
cmd_pkt->nport_handle = nvme->u.nvme.nport_handle;
cmd_pkt->exchange_address = nvme->u.nvme.exchange_address;
} else {
cmd_pkt->control_flags =
cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT);
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->rx_dseg_count = cpu_to_le16(1);
cmd_pkt->rx_byte_count = nvme->u.nvme.rsp_len;
cmd_pkt->dsd[1].length = nvme->u.nvme.rsp_len;
put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address);
}
cmd_pkt->tx_dseg_count = cpu_to_le16(1);
cmd_pkt->tx_byte_count = nvme->u.nvme.cmd_len;
cmd_pkt->dsd[0].length = nvme->u.nvme.cmd_len;
put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address);
}
static void
qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce)
{
int map, pos;
vce->entry_type = VP_CTRL_IOCB_TYPE;
vce->handle = sp->handle;
vce->entry_count = 1;
vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd);
vce->vp_count = cpu_to_le16(1);
/*
* index map in firmware starts with 1; decrement index
* this is ok as we never use index 0
*/
map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8;
pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7;
vce->vp_idx_map[map] |= 1 << pos;
}
static void
qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio)
{
logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
logio->control_flags =
cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO);
logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
logio->port_id[0] = sp->fcport->d_id.b.al_pa;
logio->port_id[1] = sp->fcport->d_id.b.area;
logio->port_id[2] = sp->fcport->d_id.b.domain;
logio->vp_index = sp->fcport->vha->vp_idx;
}
static int qla_get_iocbs_resource(struct srb *sp)
{
bool get_exch;
bool push_it_through = false;
if (!ql2xenforce_iocb_limit) {
sp->iores.res_type = RESOURCE_NONE;
return 0;
}
sp->iores.res_type = RESOURCE_NONE;
switch (sp->type) {
case SRB_TM_CMD:
case SRB_PRLI_CMD:
case SRB_ADISC_CMD:
push_it_through = true;
fallthrough;
case SRB_LOGIN_CMD:
case SRB_ELS_CMD_RPT:
case SRB_ELS_CMD_HST:
case SRB_ELS_CMD_HST_NOLOGIN:
case SRB_CT_CMD:
case SRB_NVME_LS:
case SRB_ELS_DCMD:
get_exch = true;
break;
case SRB_FXIOCB_DCMD:
case SRB_FXIOCB_BCMD:
sp->iores.res_type = RESOURCE_NONE;
return 0;
case SRB_SA_UPDATE:
case SRB_SA_REPLACE:
case SRB_MB_IOCB:
case SRB_ABT_CMD:
case SRB_NACK_PLOGI:
case SRB_NACK_PRLI:
case SRB_NACK_LOGO:
case SRB_LOGOUT_CMD:
case SRB_CTRL_VP:
case SRB_MARKER:
default:
push_it_through = true;
get_exch = false;
}
sp->iores.res_type |= RESOURCE_IOCB;
sp->iores.iocb_cnt = 1;
if (get_exch) {
sp->iores.res_type |= RESOURCE_EXCH;
sp->iores.exch_cnt = 1;
}
if (push_it_through)
sp->iores.res_type |= RESOURCE_FORCE;
return qla_get_fw_resources(sp->qpair, &sp->iores);
}
static void
qla_marker_iocb(srb_t *sp, struct mrk_entry_24xx *mrk)
{
mrk->entry_type = MARKER_TYPE;
mrk->modifier = sp->u.iocb_cmd.u.tmf.modifier;
mrk->handle = make_handle(sp->qpair->req->id, sp->handle);
if (sp->u.iocb_cmd.u.tmf.modifier != MK_SYNC_ALL) {
mrk->nport_handle = cpu_to_le16(sp->u.iocb_cmd.u.tmf.loop_id);
int_to_scsilun(sp->u.iocb_cmd.u.tmf.lun, (struct scsi_lun *)&mrk->lun);
host_to_fcp_swap(mrk->lun, sizeof(mrk->lun));
mrk->vp_index = sp->u.iocb_cmd.u.tmf.vp_index;
}
}
int
qla2x00_start_sp(srb_t *sp)
{
int rval = QLA_SUCCESS;
scsi_qla_host_t *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_qpair *qp = sp->qpair;
void *pkt;
unsigned long flags;
if (vha->hw->flags.eeh_busy)
return -EIO;
spin_lock_irqsave(qp->qp_lock_ptr, flags);
rval = qla_get_iocbs_resource(sp);
if (rval) {
spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
return -EAGAIN;
}
pkt = __qla2x00_alloc_iocbs(sp->qpair, sp);
if (!pkt) {
rval = -EAGAIN;
ql_log(ql_log_warn, vha, 0x700c,
"qla2x00_alloc_iocbs failed.\n");
goto done;
}
switch (sp->type) {
case SRB_LOGIN_CMD:
IS_FWI2_CAPABLE(ha) ?
qla24xx_login_iocb(sp, pkt) :
qla2x00_login_iocb(sp, pkt);
break;
case SRB_PRLI_CMD:
qla24xx_prli_iocb(sp, pkt);
break;
case SRB_LOGOUT_CMD:
IS_FWI2_CAPABLE(ha) ?
qla24xx_logout_iocb(sp, pkt) :
qla2x00_logout_iocb(sp, pkt);
break;
case SRB_ELS_CMD_RPT:
case SRB_ELS_CMD_HST:
qla24xx_els_iocb(sp, pkt);
break;
case SRB_ELS_CMD_HST_NOLOGIN:
qla_els_pt_iocb(sp->vha, pkt, &sp->u.bsg_cmd.u.els_arg);
((struct els_entry_24xx *)pkt)->handle = sp->handle;
break;
case SRB_CT_CMD:
IS_FWI2_CAPABLE(ha) ?
qla24xx_ct_iocb(sp, pkt) :
qla2x00_ct_iocb(sp, pkt);
break;
case SRB_ADISC_CMD:
IS_FWI2_CAPABLE(ha) ?
qla24xx_adisc_iocb(sp, pkt) :
qla2x00_adisc_iocb(sp, pkt);
break;
case SRB_TM_CMD:
IS_QLAFX00(ha) ?
qlafx00_tm_iocb(sp, pkt) :
qla24xx_tm_iocb(sp, pkt);
break;
case SRB_FXIOCB_DCMD:
case SRB_FXIOCB_BCMD:
qlafx00_fxdisc_iocb(sp, pkt);
break;
case SRB_NVME_LS:
qla_nvme_ls(sp, pkt);
break;
case SRB_ABT_CMD:
IS_QLAFX00(ha) ?
qlafx00_abort_iocb(sp, pkt) :
qla24xx_abort_iocb(sp, pkt);
break;
case SRB_ELS_DCMD:
qla24xx_els_logo_iocb(sp, pkt);
break;
case SRB_CT_PTHRU_CMD:
qla2x00_ctpthru_cmd_iocb(sp, pkt);
break;
case SRB_MB_IOCB:
qla2x00_mb_iocb(sp, pkt);
break;
case SRB_NACK_PLOGI:
case SRB_NACK_PRLI:
case SRB_NACK_LOGO:
qla2x00_send_notify_ack_iocb(sp, pkt);
break;
case SRB_CTRL_VP:
qla25xx_ctrlvp_iocb(sp, pkt);
break;
case SRB_PRLO_CMD:
qla24xx_prlo_iocb(sp, pkt);
break;
case SRB_SA_UPDATE:
qla24xx_sa_update_iocb(sp, pkt);
break;
case SRB_SA_REPLACE:
qla24xx_sa_replace_iocb(sp, pkt);
break;
case SRB_MARKER:
qla_marker_iocb(sp, pkt);
break;
default:
break;
}
if (sp->start_timer) {
/* ref: TMR timer ref
* this code should be just before start_iocbs function
* This will make sure that caller function don't to do
* kref_put even on failure
*/
kref_get(&sp->cmd_kref);
add_timer(&sp->u.iocb_cmd.timer);
}
wmb();
qla2x00_start_iocbs(vha, qp->req);
done:
if (rval)
qla_put_fw_resources(sp->qpair, &sp->iores);
spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
return rval;
}
static void
qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha,
struct cmd_bidir *cmd_pkt, uint32_t tot_dsds)
{
uint16_t avail_dsds;
struct dsd64 *cur_dsd;
uint32_t req_data_len = 0;
uint32_t rsp_data_len = 0;
struct scatterlist *sg;
int index;
int entry_count = 1;
struct bsg_job *bsg_job = sp->u.bsg_job;
/*Update entry type to indicate bidir command */
put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type);
/* Set the transfer direction, in this set both flags
* Also set the BD_WRAP_BACK flag, firmware will take care
* assigning DID=SID for outgoing pkts.
*/
cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
BD_WRAP_BACK);
req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len);
cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len);
cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
vha->bidi_stats.transfer_bytes += req_data_len;
vha->bidi_stats.io_count++;
vha->qla_stats.output_bytes += req_data_len;
vha->qla_stats.output_requests++;
/* Only one dsd is available for bidirectional IOCB, remaining dsds
* are bundled in continuation iocb
*/
avail_dsds = 1;
cur_dsd = &cmd_pkt->fcp_dsd;
index = 0;
for_each_sg(bsg_job->request_payload.sg_list, sg,
bsg_job->request_payload.sg_cnt, index) {
cont_a64_entry_t *cont_pkt;
/* Allocate additional continuation packets */
if (avail_dsds == 0) {
/* Continuation type 1 IOCB can accomodate
* 5 DSDS
*/
cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
cur_dsd = cont_pkt->dsd;
avail_dsds = 5;
entry_count++;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
/* For read request DSD will always goes to continuation IOCB
* and follow the write DSD. If there is room on the current IOCB
* then it is added to that IOCB else new continuation IOCB is
* allocated.
*/
for_each_sg(bsg_job->reply_payload.sg_list, sg,
bsg_job->reply_payload.sg_cnt, index) {
cont_a64_entry_t *cont_pkt;
/* Allocate additional continuation packets */
if (avail_dsds == 0) {
/* Continuation type 1 IOCB can accomodate
* 5 DSDS
*/
cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
cur_dsd = cont_pkt->dsd;
avail_dsds = 5;
entry_count++;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
/* This value should be same as number of IOCB required for this cmd */
cmd_pkt->entry_count = entry_count;
}
int
qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
{
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
uint32_t handle;
uint16_t req_cnt;
uint16_t cnt;
uint32_t *clr_ptr;
struct cmd_bidir *cmd_pkt = NULL;
struct rsp_que *rsp;
struct req_que *req;
int rval = EXT_STATUS_OK;
rval = QLA_SUCCESS;
rsp = ha->rsp_q_map[0];
req = vha->req;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (qla2x00_marker(vha, ha->base_qpair,
0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
return EXT_STATUS_MAILBOX;
vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
handle = qla2xxx_get_next_handle(req);
if (handle == 0) {
rval = EXT_STATUS_BUSY;
goto queuing_error;
}
/* Calculate number of IOCB required */
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
/* Check for room on request queue. */
if (req->cnt < req_cnt + 2) {
if (IS_SHADOW_REG_CAPABLE(ha)) {
cnt = *req->out_ptr;
} else {
cnt = rd_reg_dword_relaxed(req->req_q_out);
if (qla2x00_check_reg16_for_disconnect(vha, cnt))
goto queuing_error;
}
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
}
if (req->cnt < req_cnt + 2) {
rval = EXT_STATUS_BUSY;
goto queuing_error;
}
cmd_pkt = (struct cmd_bidir *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
/* Zero out remaining portion of packet. */
/* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
/* Set NPORT-ID (of vha)*/
cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id);
cmd_pkt->port_id[0] = vha->d_id.b.al_pa;
cmd_pkt->port_id[1] = vha->d_id.b.area;
cmd_pkt->port_id[2] = vha->d_id.b.domain;
qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds);
cmd_pkt->entry_status = (uint8_t) rsp->id;
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
req->cnt -= req_cnt;
/* Send the command to the firmware */
wmb();
qla2x00_start_iocbs(vha, req);
queuing_error:
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return rval;
}
/**
* qla_start_scsi_type6() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
static int
qla_start_scsi_type6(srb_t *sp)
{
int nseg;
unsigned long flags;
uint32_t *clr_ptr;
uint32_t handle;
struct cmd_type_6 *cmd_pkt;
uint16_t cnt;
uint16_t req_cnt;
uint16_t tot_dsds;
struct req_que *req = NULL;
struct rsp_que *rsp;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct scsi_qla_host *vha = sp->fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_qpair *qpair = sp->qpair;
uint16_t more_dsd_lists = 0;
struct dsd_dma *dsd_ptr;
uint16_t i;
__be32 *fcp_dl;
uint8_t additional_cdb_len;
struct ct6_dsd *ctx;
/* Acquire qpair specific lock */
spin_lock_irqsave(&qpair->qp_lock, flags);
/* Setup qpair pointers */
req = qpair->req;
rsp = qpair->rsp;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_FUNCTION_FAILED;
}
vha->marker_needed = 0;
}
handle = qla2xxx_get_next_handle(req);
if (handle == 0)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
} else {
nseg = 0;
}
tot_dsds = nseg;
/* eventhough driver only need 1 T6 IOCB, FW still convert DSD to Continueation IOCB */
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
sp->iores.exch_cnt = 1;
sp->iores.iocb_cnt = req_cnt;
if (qla_get_fw_resources(sp->qpair, &sp->iores))
goto queuing_error;
more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
if ((more_dsd_lists + qpair->dsd_inuse) >= NUM_DSD_CHAIN) {
ql_dbg(ql_dbg_io, vha, 0x3028,
"Num of DSD list %d is than %d for cmd=%p.\n",
more_dsd_lists + qpair->dsd_inuse, NUM_DSD_CHAIN, cmd);
goto queuing_error;
}
if (more_dsd_lists <= qpair->dsd_avail)
goto sufficient_dsds;
else
more_dsd_lists -= qpair->dsd_avail;
for (i = 0; i < more_dsd_lists; i++) {
dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
if (!dsd_ptr) {
ql_log(ql_log_fatal, vha, 0x3029,
"Failed to allocate memory for dsd_dma for cmd=%p.\n", cmd);
goto queuing_error;
}
INIT_LIST_HEAD(&dsd_ptr->list);
dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
if (!dsd_ptr->dsd_addr) {
kfree(dsd_ptr);
ql_log(ql_log_fatal, vha, 0x302a,
"Failed to allocate memory for dsd_addr for cmd=%p.\n", cmd);
goto queuing_error;
}
list_add_tail(&dsd_ptr->list, &qpair->dsd_list);
qpair->dsd_avail++;
}
sufficient_dsds:
req_cnt = 1;
if (req->cnt < (req_cnt + 2)) {
if (IS_SHADOW_REG_CAPABLE(ha)) {
cnt = *req->out_ptr;
} else {
cnt = (uint16_t)rd_reg_dword_relaxed(req->req_q_out);
if (qla2x00_check_reg16_for_disconnect(vha, cnt))
goto queuing_error;
}
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length - (req->ring_index - cnt);
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
ctx = &sp->u.scmd.ct6_ctx;
memset(ctx, 0, sizeof(struct ct6_dsd));
ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool,
GFP_ATOMIC, &ctx->fcp_cmnd_dma);
if (!ctx->fcp_cmnd) {
ql_log(ql_log_fatal, vha, 0x3031,
"Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
goto queuing_error;
}
/* Initialize the DSD list and dma handle */
INIT_LIST_HEAD(&ctx->dsd_list);
ctx->dsd_use_cnt = 0;
if (cmd->cmd_len > 16) {
additional_cdb_len = cmd->cmd_len - 16;
if (cmd->cmd_len % 4 ||
cmd->cmd_len > QLA_CDB_BUF_SIZE) {
/*
* SCSI command bigger than 16 bytes must be
* multiple of 4 or too big.
*/
ql_log(ql_log_warn, vha, 0x3033,
"scsi cmd len %d not multiple of 4 for cmd=%p.\n",
cmd->cmd_len, cmd);
goto queuing_error_fcp_cmnd;
}
ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
} else {
additional_cdb_len = 0;
ctx->fcp_cmnd_len = 12 + 16 + 4;
}
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
/* tagged queuing modifier -- default is TSK_SIMPLE (0). */
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Set NPORT-ID and LUN number */
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->vha->vp_idx;
/* Build IOCB segments */
qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds);
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
/* build FCP_CMND IU */
int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun);
ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
if (cmd->sc_data_direction == DMA_TO_DEVICE)
ctx->fcp_cmnd->additional_cdb_len |= 1;
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
ctx->fcp_cmnd->additional_cdb_len |= 2;
/* Populate the FCP_PRIO. */
if (ha->flags.fcp_prio_enabled)
ctx->fcp_cmnd->task_attribute |=
sp->fcport->fcp_prio << 3;
memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 +
additional_cdb_len);
*fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
put_unaligned_le64(ctx->fcp_cmnd_dma,
&cmd_pkt->fcp_cmnd_dseg_address);
sp->flags |= SRB_FCP_CMND_DMA_VALID;
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else {
req->ring_ptr++;
}
sp->qpair->cmd_cnt++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
wrt_reg_dword(req->req_q_in, req->ring_index);
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_SUCCESS;
queuing_error_fcp_cmnd:
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
qla_put_fw_resources(sp->qpair, &sp->iores);
if (sp->u.scmd.crc_ctx) {
mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool);
sp->u.scmd.crc_ctx = NULL;
}
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return QLA_FUNCTION_FAILED;
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_iocb.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include <linux/delay.h>
#include <linux/ktime.h>
#include <linux/pci.h>
#include <linux/ratelimit.h>
#include <linux/vmalloc.h>
#include <scsi/scsi_tcq.h>
#include <linux/utsname.h>
/* QLAFX00 specific Mailbox implementation functions */
/*
* qlafx00_mailbox_command
* Issue mailbox command and waits for completion.
*
* Input:
* ha = adapter block pointer.
* mcp = driver internal mbx struct pointer.
*
* Output:
* mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
*
* Returns:
* 0 : QLA_SUCCESS = cmd performed success
* 1 : QLA_FUNCTION_FAILED (error encountered)
* 6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
*
* Context:
* Kernel context.
*/
static int
qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)
{
int rval;
unsigned long flags = 0;
device_reg_t *reg;
uint8_t abort_active;
uint8_t io_lock_on;
uint16_t command = 0;
uint32_t *iptr;
__le32 __iomem *optr;
uint32_t cnt;
uint32_t mboxes;
unsigned long wait_time;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
if (ha->pdev->error_state == pci_channel_io_perm_failure) {
ql_log(ql_log_warn, vha, 0x115c,
"PCI channel failed permanently, exiting.\n");
return QLA_FUNCTION_TIMEOUT;
}
if (vha->device_flags & DFLG_DEV_FAILED) {
ql_log(ql_log_warn, vha, 0x115f,
"Device in failed state, exiting.\n");
return QLA_FUNCTION_TIMEOUT;
}
reg = ha->iobase;
io_lock_on = base_vha->flags.init_done;
rval = QLA_SUCCESS;
abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
if (ha->flags.pci_channel_io_perm_failure) {
ql_log(ql_log_warn, vha, 0x1175,
"Perm failure on EEH timeout MBX, exiting.\n");
return QLA_FUNCTION_TIMEOUT;
}
if (ha->flags.isp82xx_fw_hung) {
/* Setting Link-Down error */
mcp->mb[0] = MBS_LINK_DOWN_ERROR;
ql_log(ql_log_warn, vha, 0x1176,
"FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
rval = QLA_FUNCTION_FAILED;
goto premature_exit;
}
/*
* Wait for active mailbox commands to finish by waiting at most tov
* seconds. This is to serialize actual issuing of mailbox cmds during
* non ISP abort time.
*/
if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
/* Timeout occurred. Return error. */
ql_log(ql_log_warn, vha, 0x1177,
"Cmd access timeout, cmd=0x%x, Exiting.\n",
mcp->mb[0]);
return QLA_FUNCTION_TIMEOUT;
}
ha->flags.mbox_busy = 1;
/* Save mailbox command for debug */
ha->mcp32 = mcp;
ql_dbg(ql_dbg_mbx, vha, 0x1178,
"Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Load mailbox registers. */
optr = ®->ispfx00.mailbox0;
iptr = mcp->mb;
command = mcp->mb[0];
mboxes = mcp->out_mb;
for (cnt = 0; cnt < ha->mbx_count; cnt++) {
if (mboxes & BIT_0)
wrt_reg_dword(optr, *iptr);
mboxes >>= 1;
optr++;
iptr++;
}
/* Issue set host interrupt command to send cmd out. */
ha->flags.mbox_int = 0;
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1172,
(uint8_t *)mcp->mb, 16);
ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1173,
((uint8_t *)mcp->mb + 0x10), 16);
ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1174,
((uint8_t *)mcp->mb + 0x20), 8);
/* Unlock mbx registers and wait for interrupt */
ql_dbg(ql_dbg_mbx, vha, 0x1179,
"Going to unlock irq & waiting for interrupts. "
"jiffies=%lx.\n", jiffies);
/* Wait for mbx cmd completion until timeout */
if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
WARN_ON_ONCE(wait_for_completion_timeout(&ha->mbx_intr_comp,
mcp->tov * HZ) != 0);
} else {
ql_dbg(ql_dbg_mbx, vha, 0x112c,
"Cmd=%x Polling Mode.\n", command);
QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
while (!ha->flags.mbox_int) {
if (time_after(jiffies, wait_time))
break;
/* Check for pending interrupts. */
qla2x00_poll(ha->rsp_q_map[0]);
if (!ha->flags.mbox_int &&
!(IS_QLA2200(ha) &&
command == MBC_LOAD_RISC_RAM_EXTENDED))
usleep_range(10000, 11000);
} /* while */
ql_dbg(ql_dbg_mbx, vha, 0x112d,
"Waited %d sec.\n",
(uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
}
/* Check whether we timed out */
if (ha->flags.mbox_int) {
uint32_t *iptr2;
ql_dbg(ql_dbg_mbx, vha, 0x112e,
"Cmd=%x completed.\n", command);
/* Got interrupt. Clear the flag. */
ha->flags.mbox_int = 0;
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
rval = QLA_FUNCTION_FAILED;
/* Load return mailbox registers. */
iptr2 = mcp->mb;
iptr = (uint32_t *)&ha->mailbox_out32[0];
mboxes = mcp->in_mb;
for (cnt = 0; cnt < ha->mbx_count; cnt++) {
if (mboxes & BIT_0)
*iptr2 = *iptr;
mboxes >>= 1;
iptr2++;
iptr++;
}
} else {
rval = QLA_FUNCTION_TIMEOUT;
}
ha->flags.mbox_busy = 0;
/* Clean up */
ha->mcp32 = NULL;
if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
ql_dbg(ql_dbg_mbx, vha, 0x113a,
"checking for additional resp interrupt.\n");
/* polling mode for non isp_abort commands. */
qla2x00_poll(ha->rsp_q_map[0]);
}
if (rval == QLA_FUNCTION_TIMEOUT &&
mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
ha->flags.eeh_busy) {
/* not in dpc. schedule it for dpc to take over. */
ql_dbg(ql_dbg_mbx, vha, 0x115d,
"Timeout, schedule isp_abort_needed.\n");
if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
!test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
ql_log(ql_log_info, base_vha, 0x115e,
"Mailbox cmd timeout occurred, cmd=0x%x, "
"mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
"abort.\n", command, mcp->mb[0],
ha->flags.eeh_busy);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
} else if (!abort_active) {
/* call abort directly since we are in the DPC thread */
ql_dbg(ql_dbg_mbx, vha, 0x1160,
"Timeout, calling abort_isp.\n");
if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
!test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
ql_log(ql_log_info, base_vha, 0x1161,
"Mailbox cmd timeout occurred, cmd=0x%x, "
"mb[0]=0x%x. Scheduling ISP abort ",
command, mcp->mb[0]);
set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
if (ha->isp_ops->abort_isp(vha)) {
/* Failed. retry later. */
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
}
clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
ql_dbg(ql_dbg_mbx, vha, 0x1162,
"Finished abort_isp.\n");
}
}
}
premature_exit:
/* Allow next mbx cmd to come in. */
complete(&ha->mbx_cmd_comp);
if (rval) {
ql_log(ql_log_warn, base_vha, 0x1163,
"**** Failed=%x mbx[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x, cmd=%x ****.\n",
rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3],
command);
} else {
ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
}
return rval;
}
/*
* qlafx00_driver_shutdown
* Indicate a driver shutdown to firmware.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* local function return status code.
*
* Context:
* Kernel context.
*/
int
qlafx00_driver_shutdown(scsi_qla_host_t *vha, int tmo)
{
int rval;
struct mbx_cmd_32 mc;
struct mbx_cmd_32 *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1166,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_MR_DRV_SHUTDOWN;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_0;
if (tmo)
mcp->tov = tmo;
else
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qlafx00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1167,
"Failed=%x.\n", rval);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1168,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qlafx00_get_firmware_state
* Get adapter firmware state.
*
* Input:
* ha = adapter block pointer.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qla7xxx local function return status code.
*
* Context:
* Kernel context.
*/
static int
qlafx00_get_firmware_state(scsi_qla_host_t *vha, uint32_t *states)
{
int rval;
struct mbx_cmd_32 mc;
struct mbx_cmd_32 *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1169,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
mcp->out_mb = MBX_0;
mcp->in_mb = MBX_1|MBX_0;
mcp->tov = MBX_TOV_SECONDS;
mcp->flags = 0;
rval = qlafx00_mailbox_command(vha, mcp);
/* Return firmware states. */
states[0] = mcp->mb[1];
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x116a,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116b,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qlafx00_init_firmware
* Initialize adapter firmware.
*
* Input:
* ha = adapter block pointer.
* dptr = Initialization control block pointer.
* size = size of initialization control block.
* TARGET_QUEUE_LOCK must be released.
* ADAPTER_STATE_LOCK must be released.
*
* Returns:
* qlafx00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qlafx00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
{
int rval;
struct mbx_cmd_32 mc;
struct mbx_cmd_32 *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116c,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
mcp->mb[1] = 0;
mcp->mb[2] = MSD(ha->init_cb_dma);
mcp->mb[3] = LSD(ha->init_cb_dma);
mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_0;
mcp->buf_size = size;
mcp->flags = MBX_DMA_OUT;
mcp->tov = MBX_TOV_SECONDS;
rval = qlafx00_mailbox_command(vha, mcp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x116d,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116e,
"Done %s.\n", __func__);
}
return rval;
}
/*
* qlafx00_mbx_reg_test
*/
static int
qlafx00_mbx_reg_test(scsi_qla_host_t *vha)
{
int rval;
struct mbx_cmd_32 mc;
struct mbx_cmd_32 *mcp = &mc;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116f,
"Entered %s.\n", __func__);
mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
mcp->mb[1] = 0xAAAA;
mcp->mb[2] = 0x5555;
mcp->mb[3] = 0xAA55;
mcp->mb[4] = 0x55AA;
mcp->mb[5] = 0xA5A5;
mcp->mb[6] = 0x5A5A;
mcp->mb[7] = 0x2525;
mcp->mb[8] = 0xBBBB;
mcp->mb[9] = 0x6666;
mcp->mb[10] = 0xBB66;
mcp->mb[11] = 0x66BB;
mcp->mb[12] = 0xB6B6;
mcp->mb[13] = 0x6B6B;
mcp->mb[14] = 0x3636;
mcp->mb[15] = 0xCCCC;
mcp->out_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->buf_size = 0;
mcp->flags = MBX_DMA_OUT;
mcp->tov = MBX_TOV_SECONDS;
rval = qlafx00_mailbox_command(vha, mcp);
if (rval == QLA_SUCCESS) {
if (mcp->mb[17] != 0xAAAA || mcp->mb[18] != 0x5555 ||
mcp->mb[19] != 0xAA55 || mcp->mb[20] != 0x55AA)
rval = QLA_FUNCTION_FAILED;
if (mcp->mb[21] != 0xA5A5 || mcp->mb[22] != 0x5A5A ||
mcp->mb[23] != 0x2525 || mcp->mb[24] != 0xBBBB)
rval = QLA_FUNCTION_FAILED;
if (mcp->mb[25] != 0x6666 || mcp->mb[26] != 0xBB66 ||
mcp->mb[27] != 0x66BB || mcp->mb[28] != 0xB6B6)
rval = QLA_FUNCTION_FAILED;
if (mcp->mb[29] != 0x6B6B || mcp->mb[30] != 0x3636 ||
mcp->mb[31] != 0xCCCC)
rval = QLA_FUNCTION_FAILED;
}
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_mbx, vha, 0x1170,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1171,
"Done %s.\n", __func__);
}
return rval;
}
/**
* qlafx00_pci_config() - Setup ISPFx00 PCI configuration registers.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qlafx00_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
struct qla_hw_data *ha = vha->hw;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
w &= ~PCI_COMMAND_INTX_DISABLE;
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
/* PCIe -- adjust Maximum Read Request Size (2048). */
if (pci_is_pcie(ha->pdev))
pcie_set_readrq(ha->pdev, 2048);
ha->chip_revision = ha->pdev->revision;
return QLA_SUCCESS;
}
/**
* qlafx00_soc_cpu_reset() - Perform warm reset of iSA(CPUs being reset on SOC).
* @vha: HA context
*
*/
static inline void
qlafx00_soc_cpu_reset(scsi_qla_host_t *vha)
{
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
int i, core;
uint32_t cnt;
uint32_t reg_val;
spin_lock_irqsave(&ha->hardware_lock, flags);
QLAFX00_SET_HBA_SOC_REG(ha, 0x80004, 0);
QLAFX00_SET_HBA_SOC_REG(ha, 0x82004, 0);
/* stop the XOR DMA engines */
QLAFX00_SET_HBA_SOC_REG(ha, 0x60920, 0x02);
QLAFX00_SET_HBA_SOC_REG(ha, 0x60924, 0x02);
QLAFX00_SET_HBA_SOC_REG(ha, 0xf0920, 0x02);
QLAFX00_SET_HBA_SOC_REG(ha, 0xf0924, 0x02);
/* stop the IDMA engines */
reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60840);
reg_val &= ~(1<<12);
QLAFX00_SET_HBA_SOC_REG(ha, 0x60840, reg_val);
reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60844);
reg_val &= ~(1<<12);
QLAFX00_SET_HBA_SOC_REG(ha, 0x60844, reg_val);
reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x60848);
reg_val &= ~(1<<12);
QLAFX00_SET_HBA_SOC_REG(ha, 0x60848, reg_val);
reg_val = QLAFX00_GET_HBA_SOC_REG(ha, 0x6084C);
reg_val &= ~(1<<12);
QLAFX00_SET_HBA_SOC_REG(ha, 0x6084C, reg_val);
for (i = 0; i < 100000; i++) {
if ((QLAFX00_GET_HBA_SOC_REG(ha, 0xd0000) & 0x10000000) == 0 &&
(QLAFX00_GET_HBA_SOC_REG(ha, 0x10600) & 0x1) == 0)
break;
udelay(100);
}
/* Set all 4 cores in reset */
for (i = 0; i < 4; i++) {
QLAFX00_SET_HBA_SOC_REG(ha,
(SOC_SW_RST_CONTROL_REG_CORE0 + 8*i), (0xF01));
QLAFX00_SET_HBA_SOC_REG(ha,
(SOC_SW_RST_CONTROL_REG_CORE0 + 4 + 8*i), (0x01010101));
}
/* Reset all units in Fabric */
QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x011f0101));
/* */
QLAFX00_SET_HBA_SOC_REG(ha, 0x10610, 1);
QLAFX00_SET_HBA_SOC_REG(ha, 0x10600, 0);
/* Set all 4 core Memory Power Down Registers */
for (i = 0; i < 5; i++) {
QLAFX00_SET_HBA_SOC_REG(ha,
(SOC_PWR_MANAGEMENT_PWR_DOWN_REG + 4*i), (0x0));
}
/* Reset all interrupt control registers */
for (i = 0; i < 115; i++) {
QLAFX00_SET_HBA_SOC_REG(ha,
(SOC_INTERRUPT_SOURCE_I_CONTROL_REG + 4*i), (0x0));
}
/* Reset Timers control registers. per core */
for (core = 0; core < 4; core++)
for (i = 0; i < 8; i++)
QLAFX00_SET_HBA_SOC_REG(ha,
(SOC_CORE_TIMER_REG + 0x100*core + 4*i), (0x0));
/* Reset per core IRQ ack register */
for (core = 0; core < 4; core++)
QLAFX00_SET_HBA_SOC_REG(ha,
(SOC_IRQ_ACK_REG + 0x100*core), (0x3FF));
/* Set Fabric control and config to defaults */
QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONTROL_REG, (0x2));
QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONFIG_REG, (0x3));
/* Kick in Fabric units */
QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x0));
/* Kick in Core0 to start boot process */
QLAFX00_SET_HBA_SOC_REG(ha, SOC_SW_RST_CONTROL_REG_CORE0, (0xF00));
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* Wait 10secs for soft-reset to complete. */
for (cnt = 10; cnt; cnt--) {
msleep(1000);
barrier();
}
}
/**
* qlafx00_soft_reset() - Soft Reset ISPFx00.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qlafx00_soft_reset(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_FUNCTION_FAILED;
if (unlikely(pci_channel_offline(ha->pdev) &&
ha->flags.pci_channel_io_perm_failure))
return rval;
ha->isp_ops->disable_intrs(ha);
qlafx00_soc_cpu_reset(vha);
return QLA_SUCCESS;
}
/**
* qlafx00_chip_diag() - Test ISPFx00 for proper operation.
* @vha: HA context
*
* Returns 0 on success.
*/
int
qlafx00_chip_diag(scsi_qla_host_t *vha)
{
int rval = 0;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
rval = qlafx00_mbx_reg_test(vha);
if (rval) {
ql_log(ql_log_warn, vha, 0x1165,
"Failed mailbox send register test\n");
} else {
/* Flag a successful rval */
rval = QLA_SUCCESS;
}
return rval;
}
void
qlafx00_config_rings(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
wrt_reg_dword(®->req_q_in, 0);
wrt_reg_dword(®->req_q_out, 0);
wrt_reg_dword(®->rsp_q_in, 0);
wrt_reg_dword(®->rsp_q_out, 0);
/* PCI posting */
rd_reg_dword(®->rsp_q_out);
}
char *
qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
{
struct qla_hw_data *ha = vha->hw;
if (pci_is_pcie(ha->pdev))
strscpy(str, "PCIe iSA", str_len);
return str;
}
char *
qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
{
struct qla_hw_data *ha = vha->hw;
snprintf(str, size, "%s", ha->mr.fw_version);
return str;
}
void
qlafx00_enable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 1;
QLAFX00_ENABLE_ICNTRL_REG(ha);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
void
qlafx00_disable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 0;
QLAFX00_DISABLE_ICNTRL_REG(ha);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
int
qlafx00_abort_target(fc_port_t *fcport, uint64_t l, int tag)
{
return qla2x00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
}
int
qlafx00_lun_reset(fc_port_t *fcport, uint64_t l, int tag)
{
return qla2x00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
}
int
qlafx00_iospace_config(struct qla_hw_data *ha)
{
if (pci_request_selected_regions(ha->pdev, ha->bars,
QLA2XXX_DRIVER_NAME)) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
"Failed to reserve PIO/MMIO regions (%s), aborting.\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
/* Use MMIO operations for all accesses. */
if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
"Invalid pci I/O region size (%s).\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
"Invalid PCI mem BAR0 region size (%s), aborting\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
ha->cregbase =
ioremap(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
if (!ha->cregbase) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
"cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
goto iospace_error_exit;
}
if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
"region #2 not an MMIO resource (%s), aborting\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
"Invalid PCI mem BAR2 region size (%s), aborting\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
ha->iobase =
ioremap(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
if (!ha->iobase) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
"cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
goto iospace_error_exit;
}
/* Determine queue resources */
ha->max_req_queues = ha->max_rsp_queues = 1;
ql_log_pci(ql_log_info, ha->pdev, 0x012c,
"Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
ha->bars, ha->cregbase, ha->iobase);
return 0;
iospace_error_exit:
return -ENOMEM;
}
static void
qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
req->length_fx00 = req->length;
req->ring_fx00 = req->ring;
req->dma_fx00 = req->dma;
rsp->length_fx00 = rsp->length;
rsp->ring_fx00 = rsp->ring;
rsp->dma_fx00 = rsp->dma;
ql_dbg(ql_dbg_init, vha, 0x012d,
"req: %p, ring_fx00: %p, length_fx00: 0x%x,"
"req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
req->length_fx00, (u64)req->dma_fx00);
ql_dbg(ql_dbg_init, vha, 0x012e,
"rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
"rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
rsp->length_fx00, (u64)rsp->dma_fx00);
}
static int
qlafx00_config_queues(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
req->length = ha->req_que_len;
req->ring = (void __force *)ha->iobase + ha->req_que_off;
req->dma = bar2_hdl + ha->req_que_off;
if ((!req->ring) || (req->length == 0)) {
ql_log_pci(ql_log_info, ha->pdev, 0x012f,
"Unable to allocate memory for req_ring\n");
return QLA_FUNCTION_FAILED;
}
ql_dbg(ql_dbg_init, vha, 0x0130,
"req: %p req_ring pointer %p req len 0x%x "
"req off 0x%x\n, req->dma: 0x%llx",
req, req->ring, req->length,
ha->req_que_off, (u64)req->dma);
rsp->length = ha->rsp_que_len;
rsp->ring = (void __force *)ha->iobase + ha->rsp_que_off;
rsp->dma = bar2_hdl + ha->rsp_que_off;
if ((!rsp->ring) || (rsp->length == 0)) {
ql_log_pci(ql_log_info, ha->pdev, 0x0131,
"Unable to allocate memory for rsp_ring\n");
return QLA_FUNCTION_FAILED;
}
ql_dbg(ql_dbg_init, vha, 0x0132,
"rsp: %p rsp_ring pointer %p rsp len 0x%x "
"rsp off 0x%x, rsp->dma: 0x%llx\n",
rsp, rsp->ring, rsp->length,
ha->rsp_que_off, (u64)rsp->dma);
return QLA_SUCCESS;
}
static int
qlafx00_init_fw_ready(scsi_qla_host_t *vha)
{
int rval = 0;
unsigned long wtime;
uint16_t wait_time; /* Wait time */
struct qla_hw_data *ha = vha->hw;
struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
uint32_t aenmbx, aenmbx7 = 0;
uint32_t pseudo_aen;
uint32_t state[5];
bool done = false;
/* 30 seconds wait - Adjust if required */
wait_time = 30;
pseudo_aen = rd_reg_dword(®->pseudoaen);
if (pseudo_aen == 1) {
aenmbx7 = rd_reg_dword(®->initval7);
ha->mbx_intr_code = MSW(aenmbx7);
ha->rqstq_intr_code = LSW(aenmbx7);
rval = qlafx00_driver_shutdown(vha, 10);
if (rval != QLA_SUCCESS)
qlafx00_soft_reset(vha);
}
/* wait time before firmware ready */
wtime = jiffies + (wait_time * HZ);
do {
aenmbx = rd_reg_dword(®->aenmailbox0);
barrier();
ql_dbg(ql_dbg_mbx, vha, 0x0133,
"aenmbx: 0x%x\n", aenmbx);
switch (aenmbx) {
case MBA_FW_NOT_STARTED:
case MBA_FW_STARTING:
break;
case MBA_SYSTEM_ERR:
case MBA_REQ_TRANSFER_ERR:
case MBA_RSP_TRANSFER_ERR:
case MBA_FW_INIT_FAILURE:
qlafx00_soft_reset(vha);
break;
case MBA_FW_RESTART_CMPLT:
/* Set the mbx and rqstq intr code */
aenmbx7 = rd_reg_dword(®->aenmailbox7);
ha->mbx_intr_code = MSW(aenmbx7);
ha->rqstq_intr_code = LSW(aenmbx7);
ha->req_que_off = rd_reg_dword(®->aenmailbox1);
ha->rsp_que_off = rd_reg_dword(®->aenmailbox3);
ha->req_que_len = rd_reg_dword(®->aenmailbox5);
ha->rsp_que_len = rd_reg_dword(®->aenmailbox6);
wrt_reg_dword(®->aenmailbox0, 0);
rd_reg_dword_relaxed(®->aenmailbox0);
ql_dbg(ql_dbg_init, vha, 0x0134,
"f/w returned mbx_intr_code: 0x%x, "
"rqstq_intr_code: 0x%x\n",
ha->mbx_intr_code, ha->rqstq_intr_code);
QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
rval = QLA_SUCCESS;
done = true;
break;
default:
if ((aenmbx & 0xFF00) == MBA_FW_INIT_INPROGRESS)
break;
/* If fw is apparently not ready. In order to continue,
* we might need to issue Mbox cmd, but the problem is
* that the DoorBell vector values that come with the
* 8060 AEN are most likely gone by now (and thus no
* bell would be rung on the fw side when mbox cmd is
* issued). We have to therefore grab the 8060 AEN
* shadow regs (filled in by FW when the last 8060
* AEN was being posted).
* Do the following to determine what is needed in
* order to get the FW ready:
* 1. reload the 8060 AEN values from the shadow regs
* 2. clear int status to get rid of possible pending
* interrupts
* 3. issue Get FW State Mbox cmd to determine fw state
* Set the mbx and rqstq intr code from Shadow Regs
*/
aenmbx7 = rd_reg_dword(®->initval7);
ha->mbx_intr_code = MSW(aenmbx7);
ha->rqstq_intr_code = LSW(aenmbx7);
ha->req_que_off = rd_reg_dword(®->initval1);
ha->rsp_que_off = rd_reg_dword(®->initval3);
ha->req_que_len = rd_reg_dword(®->initval5);
ha->rsp_que_len = rd_reg_dword(®->initval6);
ql_dbg(ql_dbg_init, vha, 0x0135,
"f/w returned mbx_intr_code: 0x%x, "
"rqstq_intr_code: 0x%x\n",
ha->mbx_intr_code, ha->rqstq_intr_code);
QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
/* Get the FW state */
rval = qlafx00_get_firmware_state(vha, state);
if (rval != QLA_SUCCESS) {
/* Retry if timer has not expired */
break;
}
if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
/* Firmware is waiting to be
* initialized by driver
*/
rval = QLA_SUCCESS;
done = true;
break;
}
/* Issue driver shutdown and wait until f/w recovers.
* Driver should continue to poll until 8060 AEN is
* received indicating firmware recovery.
*/
ql_dbg(ql_dbg_init, vha, 0x0136,
"Sending Driver shutdown fw_state 0x%x\n",
state[0]);
rval = qlafx00_driver_shutdown(vha, 10);
if (rval != QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
break;
}
msleep(500);
wtime = jiffies + (wait_time * HZ);
break;
}
if (!done) {
if (time_after_eq(jiffies, wtime)) {
ql_dbg(ql_dbg_init, vha, 0x0137,
"Init f/w failed: aen[7]: 0x%x\n",
rd_reg_dword(®->aenmailbox7));
rval = QLA_FUNCTION_FAILED;
done = true;
break;
}
/* Delay for a while */
msleep(500);
}
} while (!done);
if (rval)
ql_dbg(ql_dbg_init, vha, 0x0138,
"%s **** FAILED ****.\n", __func__);
else
ql_dbg(ql_dbg_init, vha, 0x0139,
"%s **** SUCCESS ****.\n", __func__);
return rval;
}
/*
* qlafx00_fw_ready() - Waits for firmware ready.
* @ha: HA context
*
* Returns 0 on success.
*/
int
qlafx00_fw_ready(scsi_qla_host_t *vha)
{
int rval;
unsigned long wtime;
uint16_t wait_time; /* Wait time if loop is coming ready */
uint32_t state[5];
rval = QLA_SUCCESS;
wait_time = 10;
/* wait time before firmware ready */
wtime = jiffies + (wait_time * HZ);
/* Wait for ISP to finish init */
if (!vha->flags.init_done)
ql_dbg(ql_dbg_init, vha, 0x013a,
"Waiting for init to complete...\n");
do {
rval = qlafx00_get_firmware_state(vha, state);
if (rval == QLA_SUCCESS) {
if (state[0] == FSTATE_FX00_INITIALIZED) {
ql_dbg(ql_dbg_init, vha, 0x013b,
"fw_state=%x\n", state[0]);
rval = QLA_SUCCESS;
break;
}
}
rval = QLA_FUNCTION_FAILED;
if (time_after_eq(jiffies, wtime))
break;
/* Delay for a while */
msleep(500);
ql_dbg(ql_dbg_init, vha, 0x013c,
"fw_state=%x curr time=%lx.\n", state[0], jiffies);
} while (1);
if (rval)
ql_dbg(ql_dbg_init, vha, 0x013d,
"Firmware ready **** FAILED ****.\n");
else
ql_dbg(ql_dbg_init, vha, 0x013e,
"Firmware ready **** SUCCESS ****.\n");
return rval;
}
static int
qlafx00_find_all_targets(scsi_qla_host_t *vha,
struct list_head *new_fcports)
{
int rval;
uint16_t tgt_id;
fc_port_t *fcport, *new_fcport;
int found;
struct qla_hw_data *ha = vha->hw;
rval = QLA_SUCCESS;
if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
return QLA_FUNCTION_FAILED;
if ((atomic_read(&vha->loop_down_timer) ||
STATE_TRANSITION(vha))) {
atomic_set(&vha->loop_down_timer, 0);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
return QLA_FUNCTION_FAILED;
}
ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
"Listing Target bit map...\n");
ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha, 0x2089,
ha->gid_list, 32);
/* Allocate temporary rmtport for any new rmtports discovered. */
new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (new_fcport == NULL)
return QLA_MEMORY_ALLOC_FAILED;
for_each_set_bit(tgt_id, (void *)ha->gid_list,
QLAFX00_TGT_NODE_LIST_SIZE) {
/* Send get target node info */
new_fcport->tgt_id = tgt_id;
rval = qlafx00_fx_disc(vha, new_fcport,
FXDISC_GET_TGT_NODE_INFO);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x208a,
"Target info scan failed -- assuming zero-entry "
"result...\n");
continue;
}
/* Locate matching device in database. */
found = 0;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (memcmp(new_fcport->port_name,
fcport->port_name, WWN_SIZE))
continue;
found++;
/*
* If tgt_id is same and state FCS_ONLINE, nothing
* changed.
*/
if (fcport->tgt_id == new_fcport->tgt_id &&
atomic_read(&fcport->state) == FCS_ONLINE)
break;
/*
* Tgt ID changed or device was marked to be updated.
*/
ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
"TGT-ID Change(%s): Present tgt id: "
"0x%x state: 0x%x "
"wwnn = %llx wwpn = %llx.\n",
__func__, fcport->tgt_id,
atomic_read(&fcport->state),
(unsigned long long)wwn_to_u64(fcport->node_name),
(unsigned long long)wwn_to_u64(fcport->port_name));
ql_log(ql_log_info, vha, 0x208c,
"TGT-ID Announce(%s): Discovered tgt "
"id 0x%x wwnn = %llx "
"wwpn = %llx.\n", __func__, new_fcport->tgt_id,
(unsigned long long)
wwn_to_u64(new_fcport->node_name),
(unsigned long long)
wwn_to_u64(new_fcport->port_name));
if (atomic_read(&fcport->state) != FCS_ONLINE) {
fcport->old_tgt_id = fcport->tgt_id;
fcport->tgt_id = new_fcport->tgt_id;
ql_log(ql_log_info, vha, 0x208d,
"TGT-ID: New fcport Added: %p\n", fcport);
qla2x00_update_fcport(vha, fcport);
} else {
ql_log(ql_log_info, vha, 0x208e,
" Existing TGT-ID %x did not get "
" offline event from firmware.\n",
fcport->old_tgt_id);
qla2x00_mark_device_lost(vha, fcport, 0);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
qla2x00_free_fcport(new_fcport);
return rval;
}
break;
}
if (found)
continue;
/* If device was not in our fcports list, then add it. */
list_add_tail(&new_fcport->list, new_fcports);
/* Allocate a new replacement fcport. */
new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (new_fcport == NULL)
return QLA_MEMORY_ALLOC_FAILED;
}
qla2x00_free_fcport(new_fcport);
return rval;
}
/*
* qlafx00_configure_all_targets
* Setup target devices with node ID's.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
* BIT_0 = error
*/
static int
qlafx00_configure_all_targets(scsi_qla_host_t *vha)
{
int rval;
fc_port_t *fcport, *rmptemp;
LIST_HEAD(new_fcports);
rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
FXDISC_GET_TGT_NODE_LIST);
if (rval != QLA_SUCCESS) {
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
return rval;
}
rval = qlafx00_find_all_targets(vha, &new_fcports);
if (rval != QLA_SUCCESS) {
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
return rval;
}
/*
* Delete all previous devices marked lost.
*/
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
break;
if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
if (fcport->port_type != FCT_INITIATOR)
qla2x00_mark_device_lost(vha, fcport, 0);
}
}
/*
* Add the new devices to our devices list.
*/
list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
break;
qla2x00_update_fcport(vha, fcport);
list_move_tail(&fcport->list, &vha->vp_fcports);
ql_log(ql_log_info, vha, 0x208f,
"Attach new target id 0x%x wwnn = %llx "
"wwpn = %llx.\n",
fcport->tgt_id,
(unsigned long long)wwn_to_u64(fcport->node_name),
(unsigned long long)wwn_to_u64(fcport->port_name));
}
/* Free all new device structures not processed. */
list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
list_del(&fcport->list);
qla2x00_free_fcport(fcport);
}
return rval;
}
/*
* qlafx00_configure_devices
* Updates Fibre Channel Device Database with what is actually on loop.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
* 1 = error.
* 2 = database was full and device was not configured.
*/
int
qlafx00_configure_devices(scsi_qla_host_t *vha)
{
int rval;
unsigned long flags;
rval = QLA_SUCCESS;
flags = vha->dpc_flags;
ql_dbg(ql_dbg_disc, vha, 0x2090,
"Configure devices -- dpc flags =0x%lx\n", flags);
rval = qlafx00_configure_all_targets(vha);
if (rval == QLA_SUCCESS) {
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
rval = QLA_FUNCTION_FAILED;
} else {
atomic_set(&vha->loop_state, LOOP_READY);
ql_log(ql_log_info, vha, 0x2091,
"Device Ready\n");
}
}
if (rval) {
ql_dbg(ql_dbg_disc, vha, 0x2092,
"%s *** FAILED ***.\n", __func__);
} else {
ql_dbg(ql_dbg_disc, vha, 0x2093,
"%s: exiting normally.\n", __func__);
}
return rval;
}
static void
qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha, bool critemp)
{
struct qla_hw_data *ha = vha->hw;
fc_port_t *fcport;
vha->flags.online = 0;
ha->mr.fw_hbt_en = 0;
if (!critemp) {
ha->flags.chip_reset_done = 0;
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
vha->qla_stats.total_isp_aborts++;
ql_log(ql_log_info, vha, 0x013f,
"Performing ISP error recovery - ha = %p.\n", ha);
ha->isp_ops->reset_chip(vha);
}
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer,
QLAFX00_LOOP_DOWN_TIME);
} else {
if (!atomic_read(&vha->loop_down_timer))
atomic_set(&vha->loop_down_timer,
QLAFX00_LOOP_DOWN_TIME);
}
/* Clear all async request states across all VPs. */
list_for_each_entry(fcport, &vha->vp_fcports, list) {
fcport->flags = 0;
if (atomic_read(&fcport->state) == FCS_ONLINE)
qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
}
if (!ha->flags.eeh_busy) {
if (critemp) {
qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
} else {
/* Requeue all commands in outstanding command list. */
qla2x00_abort_all_cmds(vha, DID_RESET << 16);
}
}
qla2x00_free_irqs(vha);
if (critemp)
set_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags);
else
set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
/* Clear the Interrupts */
QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
ql_log(ql_log_info, vha, 0x0140,
"%s Done done - ha=%p.\n", __func__, ha);
}
/**
* qlafx00_init_response_q_entries() - Initializes response queue entries.
* @rsp: response queue
*
* Beginning of request ring has initialization control block already built
* by nvram config routine.
*
* Returns 0 on success.
*/
void
qlafx00_init_response_q_entries(struct rsp_que *rsp)
{
uint16_t cnt;
response_t *pkt;
rsp->ring_ptr = rsp->ring;
rsp->ring_index = 0;
rsp->status_srb = NULL;
pkt = rsp->ring_ptr;
for (cnt = 0; cnt < rsp->length; cnt++) {
pkt->signature = RESPONSE_PROCESSED;
wrt_reg_dword((void __force __iomem *)&pkt->signature,
RESPONSE_PROCESSED);
pkt++;
}
}
int
qlafx00_rescan_isp(scsi_qla_host_t *vha)
{
uint32_t status = QLA_FUNCTION_FAILED;
struct qla_hw_data *ha = vha->hw;
struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
uint32_t aenmbx7;
qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
aenmbx7 = rd_reg_dword(®->aenmailbox7);
ha->mbx_intr_code = MSW(aenmbx7);
ha->rqstq_intr_code = LSW(aenmbx7);
ha->req_que_off = rd_reg_dword(®->aenmailbox1);
ha->rsp_que_off = rd_reg_dword(®->aenmailbox3);
ha->req_que_len = rd_reg_dword(®->aenmailbox5);
ha->rsp_que_len = rd_reg_dword(®->aenmailbox6);
ql_dbg(ql_dbg_disc, vha, 0x2094,
"fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
" Req que offset 0x%x Rsp que offset 0x%x\n",
ha->mbx_intr_code, ha->rqstq_intr_code,
ha->req_que_off, ha->rsp_que_len);
/* Clear the Interrupts */
QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
status = qla2x00_init_rings(vha);
if (!status) {
vha->flags.online = 1;
/* if no cable then assume it's good */
if ((vha->device_flags & DFLG_NO_CABLE))
status = 0;
/* Register system information */
if (qlafx00_fx_disc(vha,
&vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
ql_dbg(ql_dbg_disc, vha, 0x2095,
"failed to register host info\n");
}
scsi_unblock_requests(vha->host);
return status;
}
void
qlafx00_timer_routine(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t fw_heart_beat;
uint32_t aenmbx0;
struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
uint32_t tempc;
/* Check firmware health */
if (ha->mr.fw_hbt_cnt)
ha->mr.fw_hbt_cnt--;
else {
if ((!ha->flags.mr_reset_hdlr_active) &&
(!test_bit(UNLOADING, &vha->dpc_flags)) &&
(!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
(ha->mr.fw_hbt_en)) {
fw_heart_beat = rd_reg_dword(®->fwheartbeat);
if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
ha->mr.old_fw_hbt_cnt = fw_heart_beat;
ha->mr.fw_hbt_miss_cnt = 0;
} else {
ha->mr.fw_hbt_miss_cnt++;
if (ha->mr.fw_hbt_miss_cnt ==
QLAFX00_HEARTBEAT_MISS_CNT) {
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
qla2xxx_wake_dpc(vha);
ha->mr.fw_hbt_miss_cnt = 0;
}
}
}
ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
}
if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
/* Reset recovery to be performed in timer routine */
aenmbx0 = rd_reg_dword(®->aenmailbox0);
if (ha->mr.fw_reset_timer_exp) {
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
ha->mr.fw_reset_timer_exp = 0;
} else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
/* Wake up DPC to rescan the targets */
set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
} else if ((aenmbx0 == MBA_FW_STARTING) &&
(!ha->mr.fw_hbt_en)) {
ha->mr.fw_hbt_en = 1;
} else if (!ha->mr.fw_reset_timer_tick) {
if (aenmbx0 == ha->mr.old_aenmbx0_state)
ha->mr.fw_reset_timer_exp = 1;
ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
} else if (aenmbx0 == 0xFFFFFFFF) {
uint32_t data0, data1;
data0 = QLAFX00_RD_REG(ha,
QLAFX00_BAR1_BASE_ADDR_REG);
data1 = QLAFX00_RD_REG(ha,
QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
data0 &= 0xffff0000;
data1 &= 0x0000ffff;
QLAFX00_WR_REG(ha,
QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
(data0 | data1));
} else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
ha->mr.fw_reset_timer_tick =
QLAFX00_MAX_RESET_INTERVAL;
} else if (aenmbx0 == MBA_FW_RESET_FCT) {
ha->mr.fw_reset_timer_tick =
QLAFX00_MAX_RESET_INTERVAL;
}
if (ha->mr.old_aenmbx0_state != aenmbx0) {
ha->mr.old_aenmbx0_state = aenmbx0;
ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
}
ha->mr.fw_reset_timer_tick--;
}
if (test_bit(FX00_CRITEMP_RECOVERY, &vha->dpc_flags)) {
/*
* Critical temperature recovery to be
* performed in timer routine
*/
if (ha->mr.fw_critemp_timer_tick == 0) {
tempc = QLAFX00_GET_TEMPERATURE(ha);
ql_dbg(ql_dbg_timer, vha, 0x6012,
"ISPFx00(%s): Critical temp timer, "
"current SOC temperature: %d\n",
__func__, tempc);
if (tempc < ha->mr.critical_temperature) {
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
clear_bit(FX00_CRITEMP_RECOVERY,
&vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
ha->mr.fw_critemp_timer_tick =
QLAFX00_CRITEMP_INTERVAL;
} else {
ha->mr.fw_critemp_timer_tick--;
}
}
if (ha->mr.host_info_resend) {
/*
* Incomplete host info might be sent to firmware
* durinng system boot - info should be resend
*/
if (ha->mr.hinfo_resend_timer_tick == 0) {
ha->mr.host_info_resend = false;
set_bit(FX00_HOST_INFO_RESEND, &vha->dpc_flags);
ha->mr.hinfo_resend_timer_tick =
QLAFX00_HINFO_RESEND_INTERVAL;
qla2xxx_wake_dpc(vha);
} else {
ha->mr.hinfo_resend_timer_tick--;
}
}
}
/*
* qlfx00a_reset_initialize
* Re-initialize after a iSA device reset.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qlafx00_reset_initialize(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (vha->device_flags & DFLG_DEV_FAILED) {
ql_dbg(ql_dbg_init, vha, 0x0142,
"Device in failed state\n");
return QLA_SUCCESS;
}
ha->flags.mr_reset_hdlr_active = 1;
if (vha->flags.online) {
scsi_block_requests(vha->host);
qlafx00_abort_isp_cleanup(vha, false);
}
ql_log(ql_log_info, vha, 0x0143,
"(%s): succeeded.\n", __func__);
ha->flags.mr_reset_hdlr_active = 0;
return QLA_SUCCESS;
}
/*
* qlafx00_abort_isp
* Resets ISP and aborts all outstanding commands.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qlafx00_abort_isp(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (vha->flags.online) {
if (unlikely(pci_channel_offline(ha->pdev) &&
ha->flags.pci_channel_io_perm_failure)) {
clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
return QLA_SUCCESS;
}
scsi_block_requests(vha->host);
qlafx00_abort_isp_cleanup(vha, false);
} else {
scsi_block_requests(vha->host);
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
vha->qla_stats.total_isp_aborts++;
ha->isp_ops->reset_chip(vha);
set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
/* Clear the Interrupts */
QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
}
ql_log(ql_log_info, vha, 0x0145,
"(%s): succeeded.\n", __func__);
return QLA_SUCCESS;
}
static inline fc_port_t*
qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
{
fc_port_t *fcport;
/* Check for matching device in remote port list. */
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->tgt_id == tgt_id) {
ql_dbg(ql_dbg_async, vha, 0x5072,
"Matching fcport(%p) found with TGT-ID: 0x%x "
"and Remote TGT_ID: 0x%x\n",
fcport, fcport->tgt_id, tgt_id);
return fcport;
}
}
return NULL;
}
static void
qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
{
fc_port_t *fcport;
ql_log(ql_log_info, vha, 0x5073,
"Detach TGT-ID: 0x%x\n", tgt_id);
fcport = qlafx00_get_fcport(vha, tgt_id);
if (!fcport)
return;
qla2x00_mark_device_lost(vha, fcport, 0);
return;
}
void
qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
{
uint32_t aen_code, aen_data;
aen_code = FCH_EVT_VENDOR_UNIQUE;
aen_data = evt->u.aenfx.evtcode;
switch (evt->u.aenfx.evtcode) {
case QLAFX00_MBA_PORT_UPDATE: /* Port database update */
if (evt->u.aenfx.mbx[1] == 0) {
if (evt->u.aenfx.mbx[2] == 1) {
if (!vha->flags.fw_tgt_reported)
vha->flags.fw_tgt_reported = 1;
atomic_set(&vha->loop_down_timer, 0);
atomic_set(&vha->loop_state, LOOP_UP);
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else if (evt->u.aenfx.mbx[2] == 2) {
qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
}
} else if (evt->u.aenfx.mbx[1] == 0xffff) {
if (evt->u.aenfx.mbx[2] == 1) {
if (!vha->flags.fw_tgt_reported)
vha->flags.fw_tgt_reported = 1;
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
} else if (evt->u.aenfx.mbx[2] == 2) {
vha->device_flags |= DFLG_NO_CABLE;
qla2x00_mark_all_devices_lost(vha);
}
}
break;
case QLAFX00_MBA_LINK_UP:
aen_code = FCH_EVT_LINKUP;
aen_data = 0;
break;
case QLAFX00_MBA_LINK_DOWN:
aen_code = FCH_EVT_LINKDOWN;
aen_data = 0;
break;
case QLAFX00_MBA_TEMP_CRIT: /* Critical temperature event */
ql_log(ql_log_info, vha, 0x5082,
"Process critical temperature event "
"aenmb[0]: %x\n",
evt->u.aenfx.evtcode);
scsi_block_requests(vha->host);
qlafx00_abort_isp_cleanup(vha, true);
scsi_unblock_requests(vha->host);
break;
}
fc_host_post_event(vha->host, fc_get_event_number(),
aen_code, aen_data);
}
static void
qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
{
u64 port_name = 0, node_name = 0;
port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
fc_host_node_name(vha->host) = node_name;
fc_host_port_name(vha->host) = port_name;
if (!pinfo->port_type)
vha->hw->current_topology = ISP_CFG_F;
if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
atomic_set(&vha->loop_state, LOOP_READY);
else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
atomic_set(&vha->loop_state, LOOP_DOWN);
vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
}
static void
qla2x00_fxdisc_iocb_timeout(void *data)
{
srb_t *sp = data;
struct srb_iocb *lio = &sp->u.iocb_cmd;
complete(&lio->u.fxiocb.fxiocb_comp);
}
static void qla2x00_fxdisc_sp_done(srb_t *sp, int res)
{
struct srb_iocb *lio = &sp->u.iocb_cmd;
complete(&lio->u.fxiocb.fxiocb_comp);
}
int
qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t fx_type)
{
srb_t *sp;
struct srb_iocb *fdisc;
int rval = QLA_FUNCTION_FAILED;
struct qla_hw_data *ha = vha->hw;
struct host_system_info *phost_info;
struct register_host_info *preg_hsi;
struct new_utsname *p_sysid = NULL;
/* ref: INIT */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp)
goto done;
sp->type = SRB_FXIOCB_DCMD;
sp->name = "fxdisc";
qla2x00_init_async_sp(sp, FXDISC_TIMEOUT,
qla2x00_fxdisc_sp_done);
sp->u.iocb_cmd.timeout = qla2x00_fxdisc_iocb_timeout;
fdisc = &sp->u.iocb_cmd;
switch (fx_type) {
case FXDISC_GET_CONFIG_INFO:
fdisc->u.fxiocb.flags =
SRB_FXDISC_RESP_DMA_VALID;
fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
break;
case FXDISC_GET_PORT_INFO:
fdisc->u.fxiocb.flags =
SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->port_id);
break;
case FXDISC_GET_TGT_NODE_INFO:
fdisc->u.fxiocb.flags =
SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->tgt_id);
break;
case FXDISC_GET_TGT_NODE_LIST:
fdisc->u.fxiocb.flags =
SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_LIST_SIZE;
break;
case FXDISC_REG_HOST_INFO:
fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
p_sysid = utsname();
if (!p_sysid) {
ql_log(ql_log_warn, vha, 0x303c,
"Not able to get the system information\n");
goto done_free_sp;
}
break;
case FXDISC_ABORT_IOCTL:
default:
break;
}
if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
fdisc->u.fxiocb.req_len,
&fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
if (!fdisc->u.fxiocb.req_addr)
goto done_free_sp;
if (fx_type == FXDISC_REG_HOST_INFO) {
preg_hsi = (struct register_host_info *)
fdisc->u.fxiocb.req_addr;
phost_info = &preg_hsi->hsi;
memset(preg_hsi, 0, sizeof(struct register_host_info));
phost_info->os_type = OS_TYPE_LINUX;
strscpy(phost_info->sysname, p_sysid->sysname,
sizeof(phost_info->sysname));
strscpy(phost_info->nodename, p_sysid->nodename,
sizeof(phost_info->nodename));
if (!strcmp(phost_info->nodename, "(none)"))
ha->mr.host_info_resend = true;
strscpy(phost_info->release, p_sysid->release,
sizeof(phost_info->release));
strscpy(phost_info->version, p_sysid->version,
sizeof(phost_info->version));
strscpy(phost_info->machine, p_sysid->machine,
sizeof(phost_info->machine));
strscpy(phost_info->domainname, p_sysid->domainname,
sizeof(phost_info->domainname));
strscpy(phost_info->hostdriver, QLA2XXX_VERSION,
sizeof(phost_info->hostdriver));
preg_hsi->utc = (uint64_t)ktime_get_real_seconds();
ql_dbg(ql_dbg_init, vha, 0x0149,
"ISP%04X: Host registration with firmware\n",
ha->pdev->device);
ql_dbg(ql_dbg_init, vha, 0x014a,
"os_type = '%d', sysname = '%s', nodname = '%s'\n",
phost_info->os_type,
phost_info->sysname,
phost_info->nodename);
ql_dbg(ql_dbg_init, vha, 0x014b,
"release = '%s', version = '%s'\n",
phost_info->release,
phost_info->version);
ql_dbg(ql_dbg_init, vha, 0x014c,
"machine = '%s' "
"domainname = '%s', hostdriver = '%s'\n",
phost_info->machine,
phost_info->domainname,
phost_info->hostdriver);
ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
phost_info, sizeof(*phost_info));
}
}
if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
fdisc->u.fxiocb.rsp_len,
&fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
if (!fdisc->u.fxiocb.rsp_addr)
goto done_unmap_req;
}
fdisc->u.fxiocb.req_func_type = cpu_to_le16(fx_type);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_unmap_dma;
wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
if (fx_type == FXDISC_GET_CONFIG_INFO) {
struct config_info_data *pinfo =
(struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
strscpy(vha->hw->model_number, pinfo->model_num,
ARRAY_SIZE(vha->hw->model_number));
strscpy(vha->hw->model_desc, pinfo->model_description,
ARRAY_SIZE(vha->hw->model_desc));
memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
sizeof(vha->hw->mr.symbolic_name));
memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
sizeof(vha->hw->mr.serial_num));
memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
sizeof(vha->hw->mr.hw_version));
memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
sizeof(vha->hw->mr.fw_version));
strim(vha->hw->mr.fw_version);
memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
sizeof(vha->hw->mr.uboot_version));
memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
sizeof(vha->hw->mr.fru_serial_num));
vha->hw->mr.critical_temperature =
(pinfo->nominal_temp_value) ?
pinfo->nominal_temp_value : QLAFX00_CRITEMP_THRSHLD;
ha->mr.extended_io_enabled = (pinfo->enabled_capabilities &
QLAFX00_EXTENDED_IO_EN_MASK) != 0;
} else if (fx_type == FXDISC_GET_PORT_INFO) {
struct port_info_data *pinfo =
(struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
vha->d_id.b.domain = pinfo->port_id[0];
vha->d_id.b.area = pinfo->port_id[1];
vha->d_id.b.al_pa = pinfo->port_id[2];
qlafx00_update_host_attr(vha, pinfo);
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
pinfo, 16);
} else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
struct qlafx00_tgt_node_info *pinfo =
(struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
fcport->port_type = FCT_TARGET;
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
pinfo, 16);
} else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
struct qlafx00_tgt_node_info *pinfo =
(struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
pinfo, 16);
memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
} else if (fx_type == FXDISC_ABORT_IOCTL)
fdisc->u.fxiocb.result =
(fdisc->u.fxiocb.result ==
cpu_to_le32(QLAFX00_IOCTL_ICOB_ABORT_SUCCESS)) ?
cpu_to_le32(QLA_SUCCESS) : cpu_to_le32(QLA_FUNCTION_FAILED);
rval = le32_to_cpu(fdisc->u.fxiocb.result);
done_unmap_dma:
if (fdisc->u.fxiocb.rsp_addr)
dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
done_unmap_req:
if (fdisc->u.fxiocb.req_addr)
dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
done_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
return rval;
}
/*
* qlafx00_initialize_adapter
* Initialize board.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qlafx00_initialize_adapter(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
uint32_t tempc;
/* Clear adapter flags. */
vha->flags.online = 0;
ha->flags.chip_reset_done = 0;
vha->flags.reset_active = 0;
ha->flags.pci_channel_io_perm_failure = 0;
ha->flags.eeh_busy = 0;
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
atomic_set(&vha->loop_state, LOOP_DOWN);
vha->device_flags = DFLG_NO_CABLE;
vha->dpc_flags = 0;
vha->flags.management_server_logged_in = 0;
ha->isp_abort_cnt = 0;
ha->beacon_blink_led = 0;
set_bit(0, ha->req_qid_map);
set_bit(0, ha->rsp_qid_map);
ql_dbg(ql_dbg_init, vha, 0x0147,
"Configuring PCI space...\n");
rval = ha->isp_ops->pci_config(vha);
if (rval) {
ql_log(ql_log_warn, vha, 0x0148,
"Unable to configure PCI space.\n");
return rval;
}
rval = qlafx00_init_fw_ready(vha);
if (rval != QLA_SUCCESS)
return rval;
qlafx00_save_queue_ptrs(vha);
rval = qlafx00_config_queues(vha);
if (rval != QLA_SUCCESS)
return rval;
/*
* Allocate the array of outstanding commands
* now that we know the firmware resources.
*/
rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
if (rval != QLA_SUCCESS)
return rval;
rval = qla2x00_init_rings(vha);
ha->flags.chip_reset_done = 1;
tempc = QLAFX00_GET_TEMPERATURE(ha);
ql_dbg(ql_dbg_init, vha, 0x0152,
"ISPFx00(%s): Critical temp timer, current SOC temperature: 0x%x\n",
__func__, tempc);
return rval;
}
uint32_t
qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int rval = QLA_FUNCTION_FAILED;
uint32_t state[1];
if (qla2x00_reset_active(vha))
ql_log(ql_log_warn, vha, 0x70ce,
"ISP reset active.\n");
else if (!vha->hw->flags.eeh_busy) {
rval = qlafx00_get_firmware_state(vha, state);
}
if (rval != QLA_SUCCESS)
memset(state, -1, sizeof(state));
return state[0];
}
void
qlafx00_get_host_speed(struct Scsi_Host *shost)
{
struct qla_hw_data *ha = ((struct scsi_qla_host *)
(shost_priv(shost)))->hw;
u32 speed = FC_PORTSPEED_UNKNOWN;
switch (ha->link_data_rate) {
case QLAFX00_PORT_SPEED_2G:
speed = FC_PORTSPEED_2GBIT;
break;
case QLAFX00_PORT_SPEED_4G:
speed = FC_PORTSPEED_4GBIT;
break;
case QLAFX00_PORT_SPEED_8G:
speed = FC_PORTSPEED_8GBIT;
break;
case QLAFX00_PORT_SPEED_10G:
speed = FC_PORTSPEED_10GBIT;
break;
}
fc_host_speed(shost) = speed;
}
/** QLAFX00 specific ISR implementation functions */
static inline void
qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
uint32_t sense_len, struct rsp_que *rsp, int res)
{
struct scsi_qla_host *vha = sp->vha;
struct scsi_cmnd *cp = GET_CMD_SP(sp);
uint32_t track_sense_len;
SET_FW_SENSE_LEN(sp, sense_len);
if (sense_len >= SCSI_SENSE_BUFFERSIZE)
sense_len = SCSI_SENSE_BUFFERSIZE;
SET_CMD_SENSE_LEN(sp, sense_len);
SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
track_sense_len = sense_len;
if (sense_len > par_sense_len)
sense_len = par_sense_len;
memcpy(cp->sense_buffer, sense_data, sense_len);
SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
track_sense_len -= sense_len;
SET_CMD_SENSE_LEN(sp, track_sense_len);
ql_dbg(ql_dbg_io, vha, 0x304d,
"sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
sense_len, par_sense_len, track_sense_len);
if (GET_FW_SENSE_LEN(sp) > 0) {
rsp->status_srb = sp;
cp->result = res;
}
if (sense_len) {
ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
"Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
sp->vha->host_no, cp->device->id, cp->device->lun,
cp);
ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
cp->sense_buffer, sense_len);
}
}
static void
qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
__le16 sstatus, __le16 cpstatus)
{
struct srb_iocb *tmf;
tmf = &sp->u.iocb_cmd;
if (cpstatus != cpu_to_le16((uint16_t)CS_COMPLETE) ||
(sstatus & cpu_to_le16((uint16_t)SS_RESPONSE_INFO_LEN_VALID)))
cpstatus = cpu_to_le16((uint16_t)CS_INCOMPLETE);
tmf->u.tmf.comp_status = cpstatus;
sp->done(sp, 0);
}
static void
qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
struct abort_iocb_entry_fx00 *pkt)
{
const char func[] = "ABT_IOCB";
srb_t *sp;
struct srb_iocb *abt;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (!sp)
return;
abt = &sp->u.iocb_cmd;
abt->u.abt.comp_status = pkt->tgt_id_sts;
sp->done(sp, 0);
}
static void
qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
struct ioctl_iocb_entry_fx00 *pkt)
{
const char func[] = "IOSB_IOCB";
srb_t *sp;
struct bsg_job *bsg_job;
struct fc_bsg_reply *bsg_reply;
struct srb_iocb *iocb_job;
int res = 0;
struct qla_mt_iocb_rsp_fx00 fstatus;
uint8_t *fw_sts_ptr;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (!sp)
return;
if (sp->type == SRB_FXIOCB_DCMD) {
iocb_job = &sp->u.iocb_cmd;
iocb_job->u.fxiocb.seq_number = pkt->seq_no;
iocb_job->u.fxiocb.fw_flags = pkt->fw_iotcl_flags;
iocb_job->u.fxiocb.result = pkt->status;
if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
iocb_job->u.fxiocb.req_data =
pkt->dataword_r;
} else {
bsg_job = sp->u.bsg_job;
bsg_reply = bsg_job->reply;
memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
fstatus.reserved_1 = pkt->reserved_0;
fstatus.func_type = pkt->comp_func_num;
fstatus.ioctl_flags = pkt->fw_iotcl_flags;
fstatus.ioctl_data = pkt->dataword_r;
fstatus.adapid = pkt->adapid;
fstatus.reserved_2 = pkt->dataword_r_extra;
fstatus.res_count = pkt->residuallen;
fstatus.status = pkt->status;
fstatus.seq_number = pkt->seq_no;
memcpy(fstatus.reserved_3,
pkt->reserved_2, 20 * sizeof(uint8_t));
fw_sts_ptr = bsg_job->reply + sizeof(struct fc_bsg_reply);
memcpy(fw_sts_ptr, &fstatus, sizeof(fstatus));
bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
sp->vha, 0x5080, pkt, sizeof(*pkt));
ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
sp->vha, 0x5074,
fw_sts_ptr, sizeof(fstatus));
res = bsg_reply->result = DID_OK << 16;
bsg_reply->reply_payload_rcv_len =
bsg_job->reply_payload.payload_len;
}
sp->done(sp, res);
}
/**
* qlafx00_status_entry() - Process a Status IOCB entry.
* @vha: SCSI driver HA context
* @rsp: response queue
* @pkt: Entry pointer
*/
static void
qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
{
srb_t *sp;
fc_port_t *fcport;
struct scsi_cmnd *cp;
struct sts_entry_fx00 *sts;
__le16 comp_status;
__le16 scsi_status;
__le16 lscsi_status;
int32_t resid;
uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
fw_resid_len;
uint8_t *rsp_info = NULL, *sense_data = NULL;
struct qla_hw_data *ha = vha->hw;
uint32_t hindex, handle;
uint16_t que;
struct req_que *req;
int logit = 1;
int res = 0;
sts = (struct sts_entry_fx00 *) pkt;
comp_status = sts->comp_status;
scsi_status = sts->scsi_status & cpu_to_le16((uint16_t)SS_MASK);
hindex = sts->handle;
handle = LSW(hindex);
que = MSW(hindex);
req = ha->req_q_map[que];
/* Validate handle. */
if (handle < req->num_outstanding_cmds)
sp = req->outstanding_cmds[handle];
else
sp = NULL;
if (sp == NULL) {
ql_dbg(ql_dbg_io, vha, 0x3034,
"Invalid status handle (0x%x).\n", handle);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
return;
}
if (sp->type == SRB_TM_CMD) {
req->outstanding_cmds[handle] = NULL;
qlafx00_tm_iocb_entry(vha, req, pkt, sp,
scsi_status, comp_status);
return;
}
/* Fast path completion. */
if (comp_status == CS_COMPLETE && scsi_status == 0) {
qla2x00_process_completed_request(vha, req, handle);
return;
}
req->outstanding_cmds[handle] = NULL;
cp = GET_CMD_SP(sp);
if (cp == NULL) {
ql_dbg(ql_dbg_io, vha, 0x3048,
"Command already returned (0x%x/%p).\n",
handle, sp);
return;
}
lscsi_status = scsi_status & cpu_to_le16((uint16_t)STATUS_MASK);
fcport = sp->fcport;
sense_len = par_sense_len = rsp_info_len = resid_len =
fw_resid_len = 0;
if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID))
sense_len = sts->sense_len;
if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
| (uint16_t)SS_RESIDUAL_OVER)))
resid_len = le32_to_cpu(sts->residual_len);
if (comp_status == cpu_to_le16((uint16_t)CS_DATA_UNDERRUN))
fw_resid_len = le32_to_cpu(sts->residual_len);
rsp_info = sense_data = sts->data;
par_sense_len = sizeof(sts->data);
/* Check for overrun. */
if (comp_status == CS_COMPLETE &&
scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_OVER))
comp_status = cpu_to_le16((uint16_t)CS_DATA_OVERRUN);
/*
* Based on Host and scsi status generate status code for Linux
*/
switch (le16_to_cpu(comp_status)) {
case CS_COMPLETE:
case CS_QUEUE_FULL:
if (scsi_status == 0) {
res = DID_OK << 16;
break;
}
if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
| (uint16_t)SS_RESIDUAL_OVER))) {
resid = resid_len;
scsi_set_resid(cp, resid);
if (!lscsi_status &&
((unsigned)(scsi_bufflen(cp) - resid) <
cp->underflow)) {
ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
"Mid-layer underflow "
"detected (0x%x of 0x%x bytes).\n",
resid, scsi_bufflen(cp));
res = DID_ERROR << 16;
break;
}
}
res = DID_OK << 16 | le16_to_cpu(lscsi_status);
if (lscsi_status ==
cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
"QUEUE FULL detected.\n");
break;
}
logit = 0;
if (lscsi_status != cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
break;
memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
if (!(scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
break;
qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
rsp, res);
break;
case CS_DATA_UNDERRUN:
/* Use F/W calculated residual length. */
if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
resid = fw_resid_len;
else
resid = resid_len;
scsi_set_resid(cp, resid);
if (scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_UNDER)) {
if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
&& fw_resid_len != resid_len) {
ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
"Dropped frame(s) detected "
"(0x%x of 0x%x bytes).\n",
resid, scsi_bufflen(cp));
res = DID_ERROR << 16 |
le16_to_cpu(lscsi_status);
goto check_scsi_status;
}
if (!lscsi_status &&
((unsigned)(scsi_bufflen(cp) - resid) <
cp->underflow)) {
ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
"Mid-layer underflow "
"detected (0x%x of 0x%x bytes, "
"cp->underflow: 0x%x).\n",
resid, scsi_bufflen(cp), cp->underflow);
res = DID_ERROR << 16;
break;
}
} else if (lscsi_status !=
cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL) &&
lscsi_status != cpu_to_le16((uint16_t)SAM_STAT_BUSY)) {
/*
* scsi status of task set and busy are considered
* to be task not completed.
*/
ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
"Dropped frame(s) detected (0x%x "
"of 0x%x bytes).\n", resid,
scsi_bufflen(cp));
res = DID_ERROR << 16 | le16_to_cpu(lscsi_status);
goto check_scsi_status;
} else {
ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
"scsi_status: 0x%x, lscsi_status: 0x%x\n",
scsi_status, lscsi_status);
}
res = DID_OK << 16 | le16_to_cpu(lscsi_status);
logit = 0;
check_scsi_status:
/*
* Check to see if SCSI Status is non zero. If so report SCSI
* Status.
*/
if (lscsi_status != 0) {
if (lscsi_status ==
cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
"QUEUE FULL detected.\n");
logit = 1;
break;
}
if (lscsi_status !=
cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
break;
memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
if (!(scsi_status &
cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
break;
qlafx00_handle_sense(sp, sense_data, par_sense_len,
sense_len, rsp, res);
}
break;
case CS_PORT_LOGGED_OUT:
case CS_PORT_CONFIG_CHG:
case CS_PORT_BUSY:
case CS_INCOMPLETE:
case CS_PORT_UNAVAILABLE:
case CS_TIMEOUT:
case CS_RESET:
/*
* We are going to have the fc class block the rport
* while we try to recover so instruct the mid layer
* to requeue until the class decides how to handle this.
*/
res = DID_TRANSPORT_DISRUPTED << 16;
ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
"Port down status: port-state=0x%x.\n",
atomic_read(&fcport->state));
if (atomic_read(&fcport->state) == FCS_ONLINE)
qla2x00_mark_device_lost(fcport->vha, fcport, 1);
break;
case CS_ABORTED:
res = DID_RESET << 16;
break;
default:
res = DID_ERROR << 16;
break;
}
if (logit)
ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
"FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
"tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
"rsp_info=%p resid=0x%x fw_resid=0x%x sense_len=0x%x, "
"par_sense_len=0x%x, rsp_info_len=0x%x\n",
comp_status, scsi_status, res, vha->host_no,
cp->device->id, cp->device->lun, fcport->tgt_id,
lscsi_status, cp->cmnd, scsi_bufflen(cp),
rsp_info, resid_len, fw_resid_len, sense_len,
par_sense_len, rsp_info_len);
if (rsp->status_srb == NULL)
sp->done(sp, res);
else
WARN_ON_ONCE(true);
}
/**
* qlafx00_status_cont_entry() - Process a Status Continuations entry.
* @rsp: response queue
* @pkt: Entry pointer
*
* Extended sense data.
*/
static void
qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
{
uint8_t sense_sz = 0;
struct qla_hw_data *ha = rsp->hw;
struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
srb_t *sp = rsp->status_srb;
struct scsi_cmnd *cp;
uint32_t sense_len;
uint8_t *sense_ptr;
if (!sp) {
ql_dbg(ql_dbg_io, vha, 0x3037,
"no SP, sp = %p\n", sp);
return;
}
if (!GET_FW_SENSE_LEN(sp)) {
ql_dbg(ql_dbg_io, vha, 0x304b,
"no fw sense data, sp = %p\n", sp);
return;
}
cp = GET_CMD_SP(sp);
if (cp == NULL) {
ql_log(ql_log_warn, vha, 0x303b,
"cmd is NULL: already returned to OS (sp=%p).\n", sp);
rsp->status_srb = NULL;
return;
}
if (!GET_CMD_SENSE_LEN(sp)) {
ql_dbg(ql_dbg_io, vha, 0x304c,
"no sense data, sp = %p\n", sp);
} else {
sense_len = GET_CMD_SENSE_LEN(sp);
sense_ptr = GET_CMD_SENSE_PTR(sp);
ql_dbg(ql_dbg_io, vha, 0x304f,
"sp=%p sense_len=0x%x sense_ptr=%p.\n",
sp, sense_len, sense_ptr);
if (sense_len > sizeof(pkt->data))
sense_sz = sizeof(pkt->data);
else
sense_sz = sense_len;
/* Move sense data. */
ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
pkt, sizeof(*pkt));
memcpy(sense_ptr, pkt->data, sense_sz);
ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
sense_ptr, sense_sz);
sense_len -= sense_sz;
sense_ptr += sense_sz;
SET_CMD_SENSE_PTR(sp, sense_ptr);
SET_CMD_SENSE_LEN(sp, sense_len);
}
sense_len = GET_FW_SENSE_LEN(sp);
sense_len = (sense_len > sizeof(pkt->data)) ?
(sense_len - sizeof(pkt->data)) : 0;
SET_FW_SENSE_LEN(sp, sense_len);
/* Place command on done queue. */
if (sense_len == 0) {
rsp->status_srb = NULL;
sp->done(sp, cp->result);
} else {
WARN_ON_ONCE(true);
}
}
/**
* qlafx00_multistatus_entry() - Process Multi response queue entries.
* @vha: SCSI driver HA context
* @rsp: response queue
* @pkt: received packet
*/
static void
qlafx00_multistatus_entry(struct scsi_qla_host *vha,
struct rsp_que *rsp, void *pkt)
{
srb_t *sp;
struct multi_sts_entry_fx00 *stsmfx;
struct qla_hw_data *ha = vha->hw;
uint32_t handle, hindex, handle_count, i;
uint16_t que;
struct req_que *req;
__le32 *handle_ptr;
stsmfx = (struct multi_sts_entry_fx00 *) pkt;
handle_count = stsmfx->handle_count;
if (handle_count > MAX_HANDLE_COUNT) {
ql_dbg(ql_dbg_io, vha, 0x3035,
"Invalid handle count (0x%x).\n", handle_count);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
return;
}
handle_ptr = &stsmfx->handles[0];
for (i = 0; i < handle_count; i++) {
hindex = le32_to_cpu(*handle_ptr);
handle = LSW(hindex);
que = MSW(hindex);
req = ha->req_q_map[que];
/* Validate handle. */
if (handle < req->num_outstanding_cmds)
sp = req->outstanding_cmds[handle];
else
sp = NULL;
if (sp == NULL) {
ql_dbg(ql_dbg_io, vha, 0x3044,
"Invalid status handle (0x%x).\n", handle);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
return;
}
qla2x00_process_completed_request(vha, req, handle);
handle_ptr++;
}
}
/**
* qlafx00_error_entry() - Process an error entry.
* @vha: SCSI driver HA context
* @rsp: response queue
* @pkt: Entry pointer
*/
static void
qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
struct sts_entry_fx00 *pkt)
{
srb_t *sp;
struct qla_hw_data *ha = vha->hw;
const char func[] = "ERROR-IOCB";
uint16_t que = 0;
struct req_que *req = NULL;
int res = DID_ERROR << 16;
req = ha->req_q_map[que];
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (sp) {
sp->done(sp, res);
return;
}
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
/**
* qlafx00_process_response_queue() - Process response queue entries.
* @vha: SCSI driver HA context
* @rsp: response queue
*/
static void
qlafx00_process_response_queue(struct scsi_qla_host *vha,
struct rsp_que *rsp)
{
struct sts_entry_fx00 *pkt;
response_t *lptr;
uint16_t lreq_q_in = 0;
uint16_t lreq_q_out = 0;
lreq_q_in = rd_reg_dword(rsp->rsp_q_in);
lreq_q_out = rsp->ring_index;
while (lreq_q_in != lreq_q_out) {
lptr = rsp->ring_ptr;
memcpy_fromio(rsp->rsp_pkt, (void __iomem *)lptr,
sizeof(rsp->rsp_pkt));
pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
rsp->ring_index++;
lreq_q_out++;
if (rsp->ring_index == rsp->length) {
lreq_q_out = 0;
rsp->ring_index = 0;
rsp->ring_ptr = rsp->ring;
} else {
rsp->ring_ptr++;
}
if (pkt->entry_status != 0 &&
pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
ql_dbg(ql_dbg_async, vha, 0x507f,
"type of error status in response: 0x%x\n",
pkt->entry_status);
qlafx00_error_entry(vha, rsp,
(struct sts_entry_fx00 *)pkt);
continue;
}
switch (pkt->entry_type) {
case STATUS_TYPE_FX00:
qlafx00_status_entry(vha, rsp, pkt);
break;
case STATUS_CONT_TYPE_FX00:
qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
break;
case MULTI_STATUS_TYPE_FX00:
qlafx00_multistatus_entry(vha, rsp, pkt);
break;
case ABORT_IOCB_TYPE_FX00:
qlafx00_abort_iocb_entry(vha, rsp->req,
(struct abort_iocb_entry_fx00 *)pkt);
break;
case IOCTL_IOSB_TYPE_FX00:
qlafx00_ioctl_iosb_entry(vha, rsp->req,
(struct ioctl_iocb_entry_fx00 *)pkt);
break;
default:
/* Type Not Supported. */
ql_dbg(ql_dbg_async, vha, 0x5081,
"Received unknown response pkt type %x "
"entry status=%x.\n",
pkt->entry_type, pkt->entry_status);
break;
}
}
/* Adjust ring index */
wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
}
/**
* qlafx00_async_event() - Process aynchronous events.
* @vha: SCSI driver HA context
*/
static void
qlafx00_async_event(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_fx00 __iomem *reg;
int data_size = 1;
reg = &ha->iobase->ispfx00;
/* Setup to process RIO completion. */
switch (ha->aenmb[0]) {
case QLAFX00_MBA_SYSTEM_ERR: /* System Error */
ql_log(ql_log_warn, vha, 0x5079,
"ISP System Error - mbx1=%x\n", ha->aenmb[0]);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
case QLAFX00_MBA_SHUTDOWN_RQSTD: /* Shutdown requested */
ql_dbg(ql_dbg_async, vha, 0x5076,
"Asynchronous FW shutdown requested.\n");
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
break;
case QLAFX00_MBA_PORT_UPDATE: /* Port database update */
ha->aenmb[1] = rd_reg_dword(®->aenmailbox1);
ha->aenmb[2] = rd_reg_dword(®->aenmailbox2);
ha->aenmb[3] = rd_reg_dword(®->aenmailbox3);
ql_dbg(ql_dbg_async, vha, 0x5077,
"Asynchronous port Update received "
"aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
data_size = 4;
break;
case QLAFX00_MBA_TEMP_OVER: /* Over temperature event */
ql_log(ql_log_info, vha, 0x5085,
"Asynchronous over temperature event received "
"aenmb[0]: %x\n",
ha->aenmb[0]);
break;
case QLAFX00_MBA_TEMP_NORM: /* Normal temperature event */
ql_log(ql_log_info, vha, 0x5086,
"Asynchronous normal temperature event received "
"aenmb[0]: %x\n",
ha->aenmb[0]);
break;
case QLAFX00_MBA_TEMP_CRIT: /* Critical temperature event */
ql_log(ql_log_info, vha, 0x5083,
"Asynchronous critical temperature event received "
"aenmb[0]: %x\n",
ha->aenmb[0]);
break;
default:
ha->aenmb[1] = rd_reg_dword(®->aenmailbox1);
ha->aenmb[2] = rd_reg_dword(®->aenmailbox2);
ha->aenmb[3] = rd_reg_dword(®->aenmailbox3);
ha->aenmb[4] = rd_reg_dword(®->aenmailbox4);
ha->aenmb[5] = rd_reg_dword(®->aenmailbox5);
ha->aenmb[6] = rd_reg_dword(®->aenmailbox6);
ha->aenmb[7] = rd_reg_dword(®->aenmailbox7);
ql_dbg(ql_dbg_async, vha, 0x5078,
"AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
break;
}
qlafx00_post_aenfx_work(vha, ha->aenmb[0],
(uint32_t *)ha->aenmb, data_size);
}
/**
* qlafx00_mbx_completion() - Process mailbox command completions.
* @vha: SCSI driver HA context
* @mb0: value to be written into mailbox register 0
*/
static void
qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
{
uint16_t cnt;
__le32 __iomem *wptr;
struct qla_hw_data *ha = vha->hw;
struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
if (!ha->mcp32)
ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
/* Load return mailbox registers. */
ha->flags.mbox_int = 1;
ha->mailbox_out32[0] = mb0;
wptr = ®->mailbox17;
for (cnt = 1; cnt < ha->mbx_count; cnt++) {
ha->mailbox_out32[cnt] = rd_reg_dword(wptr);
wptr++;
}
}
/**
* qlafx00_intr_handler() - Process interrupts for the ISPFX00.
* @irq: interrupt number
* @dev_id: SCSI driver HA context
*
* Called by system whenever the host adapter generates an interrupt.
*
* Returns handled flag.
*/
irqreturn_t
qlafx00_intr_handler(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct device_reg_fx00 __iomem *reg;
int status;
unsigned long iter;
uint32_t stat;
uint32_t mb[8];
struct rsp_que *rsp;
unsigned long flags;
uint32_t clr_intr = 0;
uint32_t intr_stat = 0;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
ql_log(ql_log_info, NULL, 0x507d,
"%s: NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
reg = &ha->iobase->ispfx00;
status = 0;
if (unlikely(pci_channel_offline(ha->pdev)))
return IRQ_HANDLED;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; clr_intr = 0) {
stat = QLAFX00_RD_INTR_REG(ha);
if (qla2x00_check_reg32_for_disconnect(vha, stat))
break;
intr_stat = stat & QLAFX00_HST_INT_STS_BITS;
if (!intr_stat)
break;
if (stat & QLAFX00_INTR_MB_CMPLT) {
mb[0] = rd_reg_dword(®->mailbox16);
qlafx00_mbx_completion(vha, mb[0]);
status |= MBX_INTERRUPT;
clr_intr |= QLAFX00_INTR_MB_CMPLT;
}
if (intr_stat & QLAFX00_INTR_ASYNC_CMPLT) {
ha->aenmb[0] = rd_reg_dword(®->aenmailbox0);
qlafx00_async_event(vha);
clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
}
if (intr_stat & QLAFX00_INTR_RSP_CMPLT) {
qlafx00_process_response_queue(vha, rsp);
clr_intr |= QLAFX00_INTR_RSP_CMPLT;
}
QLAFX00_CLR_INTR_REG(ha, clr_intr);
QLAFX00_RD_INTR_REG(ha);
}
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return IRQ_HANDLED;
}
/** QLAFX00 specific IOCB implementation functions */
static inline cont_a64_entry_t *
qlafx00_prep_cont_type1_iocb(struct req_que *req,
cont_a64_entry_t *lcont_pkt)
{
cont_a64_entry_t *cont_pkt;
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else {
req->ring_ptr++;
}
cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
/* Load packet defaults. */
lcont_pkt->entry_type = CONTINUE_A64_TYPE_FX00;
return cont_pkt;
}
static inline void
qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
{
uint16_t avail_dsds;
struct dsd64 *cur_dsd;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
struct scatterlist *sg;
int i, cont;
struct req_que *req;
cont_a64_entry_t lcont_pkt;
cont_a64_entry_t *cont_pkt;
vha = sp->vha;
req = vha->req;
cmd = GET_CMD_SP(sp);
cont = 0;
cont_pkt = NULL;
/* Update entry type to indicate Command Type 3 IOCB */
lcmd_pkt->entry_type = FX00_COMMAND_TYPE_7;
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
lcmd_pkt->byte_count = cpu_to_le32(0);
return;
}
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
lcmd_pkt->cntrl_flags = TMF_READ_DATA;
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
}
/* One DSD is available in the Command Type 3 IOCB */
avail_dsds = 1;
cur_dsd = &lcmd_pkt->dsd;
/* Load data segments */
scsi_for_each_sg(cmd, sg, tot_dsds, i) {
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Continuation
* Type 1 IOCB.
*/
memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
cont_pkt =
qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
cur_dsd = lcont_pkt.dsd;
avail_dsds = 5;
cont = 1;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
if (avail_dsds == 0 && cont == 1) {
cont = 0;
memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
sizeof(lcont_pkt));
}
}
if (avail_dsds != 0 && cont == 1) {
memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
sizeof(lcont_pkt));
}
}
/**
* qlafx00_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
int
qlafx00_start_scsi(srb_t *sp)
{
int nseg;
unsigned long flags;
uint32_t handle;
uint16_t cnt;
uint16_t req_cnt;
uint16_t tot_dsds;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct scsi_qla_host *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
struct cmd_type_7_fx00 *cmd_pkt;
struct cmd_type_7_fx00 lcmd_pkt;
struct scsi_lun llun;
/* Setup device pointers. */
rsp = ha->rsp_q_map[0];
req = vha->req;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
handle = qla2xxx_get_next_handle(req);
if (handle == 0)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
} else
nseg = 0;
tot_dsds = nseg;
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
if (req->cnt < (req_cnt + 2)) {
cnt = rd_reg_dword_relaxed(req->req_q_out);
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
lcmd_pkt.handle = make_handle(req->id, sp->handle);
lcmd_pkt.reserved_0 = 0;
lcmd_pkt.port_path_ctrl = 0;
lcmd_pkt.reserved_1 = 0;
lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
int_to_scsilun(cmd->device->lun, &llun);
host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
sizeof(lcmd_pkt.lun));
/* Load SCSI command packet. */
host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
/* Set total data segment count. */
lcmd_pkt.entry_count = (uint8_t)req_cnt;
/* Specify response queue number where completion should happen */
lcmd_pkt.entry_status = (uint8_t) rsp->id;
ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
cmd->cmnd, cmd->cmd_len);
ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
&lcmd_pkt, sizeof(lcmd_pkt));
memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
wrt_reg_dword(req->req_q_in, req->ring_index);
QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_FUNCTION_FAILED;
}
void
qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
{
struct srb_iocb *fxio = &sp->u.iocb_cmd;
scsi_qla_host_t *vha = sp->vha;
struct req_que *req = vha->req;
struct tsk_mgmt_entry_fx00 tm_iocb;
struct scsi_lun llun;
memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
tm_iocb.entry_count = 1;
tm_iocb.handle = make_handle(req->id, sp->handle);
tm_iocb.reserved_0 = 0;
tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
if (tm_iocb.control_flags == cpu_to_le32((uint32_t)TCF_LUN_RESET)) {
int_to_scsilun(fxio->u.tmf.lun, &llun);
host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
sizeof(struct scsi_lun));
}
memcpy(ptm_iocb, &tm_iocb,
sizeof(struct tsk_mgmt_entry_fx00));
wmb();
}
void
qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
{
struct srb_iocb *fxio = &sp->u.iocb_cmd;
scsi_qla_host_t *vha = sp->vha;
struct req_que *req = vha->req;
struct abort_iocb_entry_fx00 abt_iocb;
memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
abt_iocb.entry_count = 1;
abt_iocb.handle = make_handle(req->id, sp->handle);
abt_iocb.abort_handle = make_handle(req->id, fxio->u.abt.cmd_hndl);
abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
abt_iocb.req_que_no = cpu_to_le16(req->id);
memcpy(pabt_iocb, &abt_iocb,
sizeof(struct abort_iocb_entry_fx00));
wmb();
}
void
qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
{
struct srb_iocb *fxio = &sp->u.iocb_cmd;
struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
struct bsg_job *bsg_job;
struct fc_bsg_request *bsg_request;
struct fxdisc_entry_fx00 fx_iocb;
uint8_t entry_cnt = 1;
memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
fx_iocb.entry_type = FX00_IOCB_TYPE;
fx_iocb.handle = sp->handle;
fx_iocb.entry_count = entry_cnt;
if (sp->type == SRB_FXIOCB_DCMD) {
fx_iocb.func_num =
sp->u.iocb_cmd.u.fxiocb.req_func_type;
fx_iocb.adapid = fxio->u.fxiocb.adapter_id;
fx_iocb.adapid_hi = fxio->u.fxiocb.adapter_id_hi;
fx_iocb.reserved_0 = fxio->u.fxiocb.reserved_0;
fx_iocb.reserved_1 = fxio->u.fxiocb.reserved_1;
fx_iocb.dataword_extra = fxio->u.fxiocb.req_data_extra;
if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
fx_iocb.req_dsdcnt = cpu_to_le16(1);
fx_iocb.req_xfrcnt =
cpu_to_le16(fxio->u.fxiocb.req_len);
put_unaligned_le64(fxio->u.fxiocb.req_dma_handle,
&fx_iocb.dseg_rq[0].address);
fx_iocb.dseg_rq[0].length =
cpu_to_le32(fxio->u.fxiocb.req_len);
}
if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
fx_iocb.rsp_xfrcnt =
cpu_to_le16(fxio->u.fxiocb.rsp_len);
put_unaligned_le64(fxio->u.fxiocb.rsp_dma_handle,
&fx_iocb.dseg_rsp[0].address);
fx_iocb.dseg_rsp[0].length =
cpu_to_le32(fxio->u.fxiocb.rsp_len);
}
if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
fx_iocb.dataword = fxio->u.fxiocb.req_data;
}
fx_iocb.flags = fxio->u.fxiocb.flags;
} else {
struct scatterlist *sg;
bsg_job = sp->u.bsg_job;
bsg_request = bsg_job->request;
piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
&bsg_request->rqst_data.h_vendor.vendor_cmd[1];
fx_iocb.func_num = piocb_rqst->func_type;
fx_iocb.adapid = piocb_rqst->adapid;
fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
fx_iocb.reserved_0 = piocb_rqst->reserved_0;
fx_iocb.reserved_1 = piocb_rqst->reserved_1;
fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
fx_iocb.dataword = piocb_rqst->dataword;
fx_iocb.req_xfrcnt = piocb_rqst->req_len;
fx_iocb.rsp_xfrcnt = piocb_rqst->rsp_len;
if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
int avail_dsds, tot_dsds;
cont_a64_entry_t lcont_pkt;
cont_a64_entry_t *cont_pkt = NULL;
struct dsd64 *cur_dsd;
int index = 0, cont = 0;
fx_iocb.req_dsdcnt =
cpu_to_le16(bsg_job->request_payload.sg_cnt);
tot_dsds =
bsg_job->request_payload.sg_cnt;
cur_dsd = &fx_iocb.dseg_rq[0];
avail_dsds = 1;
for_each_sg(bsg_job->request_payload.sg_list, sg,
tot_dsds, index) {
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Cont.
* Type 1 IOCB.
*/
memset(&lcont_pkt, 0,
REQUEST_ENTRY_SIZE);
cont_pkt =
qlafx00_prep_cont_type1_iocb(
sp->vha->req, &lcont_pkt);
cur_dsd = lcont_pkt.dsd;
avail_dsds = 5;
cont = 1;
entry_cnt++;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
if (avail_dsds == 0 && cont == 1) {
cont = 0;
memcpy_toio(
(void __iomem *)cont_pkt,
&lcont_pkt, REQUEST_ENTRY_SIZE);
ql_dump_buffer(
ql_dbg_user + ql_dbg_verbose,
sp->vha, 0x3042,
(uint8_t *)&lcont_pkt,
REQUEST_ENTRY_SIZE);
}
}
if (avail_dsds != 0 && cont == 1) {
memcpy_toio((void __iomem *)cont_pkt,
&lcont_pkt, REQUEST_ENTRY_SIZE);
ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
sp->vha, 0x3043,
(uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
}
}
if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
int avail_dsds, tot_dsds;
cont_a64_entry_t lcont_pkt;
cont_a64_entry_t *cont_pkt = NULL;
struct dsd64 *cur_dsd;
int index = 0, cont = 0;
fx_iocb.rsp_dsdcnt =
cpu_to_le16(bsg_job->reply_payload.sg_cnt);
tot_dsds = bsg_job->reply_payload.sg_cnt;
cur_dsd = &fx_iocb.dseg_rsp[0];
avail_dsds = 1;
for_each_sg(bsg_job->reply_payload.sg_list, sg,
tot_dsds, index) {
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Cont.
* Type 1 IOCB.
*/
memset(&lcont_pkt, 0,
REQUEST_ENTRY_SIZE);
cont_pkt =
qlafx00_prep_cont_type1_iocb(
sp->vha->req, &lcont_pkt);
cur_dsd = lcont_pkt.dsd;
avail_dsds = 5;
cont = 1;
entry_cnt++;
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
if (avail_dsds == 0 && cont == 1) {
cont = 0;
memcpy_toio((void __iomem *)cont_pkt,
&lcont_pkt,
REQUEST_ENTRY_SIZE);
ql_dump_buffer(
ql_dbg_user + ql_dbg_verbose,
sp->vha, 0x3045,
(uint8_t *)&lcont_pkt,
REQUEST_ENTRY_SIZE);
}
}
if (avail_dsds != 0 && cont == 1) {
memcpy_toio((void __iomem *)cont_pkt,
&lcont_pkt, REQUEST_ENTRY_SIZE);
ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
sp->vha, 0x3046,
(uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
}
}
if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
fx_iocb.dataword = piocb_rqst->dataword;
fx_iocb.flags = piocb_rqst->flags;
fx_iocb.entry_count = entry_cnt;
}
ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
sp->vha, 0x3047, &fx_iocb, sizeof(fx_iocb));
memcpy_toio((void __iomem *)pfxiocb, &fx_iocb, sizeof(fx_iocb));
wmb();
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_mr.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_tmpl.h"
#define ISPREG(vha) (&(vha)->hw->iobase->isp24)
#define IOBAR(reg) offsetof(typeof(*(reg)), iobase_addr)
#define IOBASE(vha) IOBAR(ISPREG(vha))
#define INVALID_ENTRY ((struct qla27xx_fwdt_entry *)0xffffffffffffffffUL)
static inline void
qla27xx_insert16(uint16_t value, void *buf, ulong *len)
{
if (buf) {
buf += *len;
*(__le16 *)buf = cpu_to_le16(value);
}
*len += sizeof(value);
}
static inline void
qla27xx_insert32(uint32_t value, void *buf, ulong *len)
{
if (buf) {
buf += *len;
*(__le32 *)buf = cpu_to_le32(value);
}
*len += sizeof(value);
}
static inline void
qla27xx_insertbuf(void *mem, ulong size, void *buf, ulong *len)
{
if (buf && mem && size) {
buf += *len;
memcpy(buf, mem, size);
}
*len += size;
}
static inline void
qla27xx_read8(void __iomem *window, void *buf, ulong *len)
{
uint8_t value = ~0;
if (buf) {
value = rd_reg_byte(window);
}
qla27xx_insert32(value, buf, len);
}
static inline void
qla27xx_read16(void __iomem *window, void *buf, ulong *len)
{
uint16_t value = ~0;
if (buf) {
value = rd_reg_word(window);
}
qla27xx_insert32(value, buf, len);
}
static inline void
qla27xx_read32(void __iomem *window, void *buf, ulong *len)
{
uint32_t value = ~0;
if (buf) {
value = rd_reg_dword(window);
}
qla27xx_insert32(value, buf, len);
}
static inline void (*qla27xx_read_vector(uint width))(void __iomem*, void *, ulong *)
{
return
(width == 1) ? qla27xx_read8 :
(width == 2) ? qla27xx_read16 :
qla27xx_read32;
}
static inline void
qla27xx_read_reg(__iomem struct device_reg_24xx *reg,
uint offset, void *buf, ulong *len)
{
void __iomem *window = (void __iomem *)reg + offset;
qla27xx_read32(window, buf, len);
}
static inline void
qla27xx_write_reg(__iomem struct device_reg_24xx *reg,
uint offset, uint32_t data, void *buf)
{
if (buf) {
void __iomem *window = (void __iomem *)reg + offset;
wrt_reg_dword(window, data);
}
}
static inline void
qla27xx_read_window(__iomem struct device_reg_24xx *reg,
uint32_t addr, uint offset, uint count, uint width, void *buf,
ulong *len)
{
void __iomem *window = (void __iomem *)reg + offset;
void (*readn)(void __iomem*, void *, ulong *) = qla27xx_read_vector(width);
qla27xx_write_reg(reg, IOBAR(reg), addr, buf);
while (count--) {
qla27xx_insert32(addr, buf, len);
readn(window, buf, len);
window += width;
addr++;
}
}
static inline void
qla27xx_skip_entry(struct qla27xx_fwdt_entry *ent, void *buf)
{
if (buf)
ent->hdr.driver_flags |= DRIVER_FLAG_SKIP_ENTRY;
}
static inline struct qla27xx_fwdt_entry *
qla27xx_next_entry(struct qla27xx_fwdt_entry *ent)
{
return (void *)ent + le32_to_cpu(ent->hdr.size);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t0(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ql_dbg(ql_dbg_misc, vha, 0xd100,
"%s: nop [%lx]\n", __func__, *len);
qla27xx_skip_entry(ent, buf);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t255(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ql_dbg(ql_dbg_misc, vha, 0xd1ff,
"%s: end [%lx]\n", __func__, *len);
qla27xx_skip_entry(ent, buf);
/* terminate */
return NULL;
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t256(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong addr = le32_to_cpu(ent->t256.base_addr);
uint offset = ent->t256.pci_offset;
ulong count = le16_to_cpu(ent->t256.reg_count);
uint width = ent->t256.reg_width;
ql_dbg(ql_dbg_misc, vha, 0xd200,
"%s: rdio t1 [%lx]\n", __func__, *len);
qla27xx_read_window(ISPREG(vha), addr, offset, count, width, buf, len);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t257(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong addr = le32_to_cpu(ent->t257.base_addr);
uint offset = ent->t257.pci_offset;
ulong data = le32_to_cpu(ent->t257.write_data);
ql_dbg(ql_dbg_misc, vha, 0xd201,
"%s: wrio t1 [%lx]\n", __func__, *len);
qla27xx_write_reg(ISPREG(vha), IOBASE(vha), addr, buf);
qla27xx_write_reg(ISPREG(vha), offset, data, buf);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t258(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
uint banksel = ent->t258.banksel_offset;
ulong bank = le32_to_cpu(ent->t258.bank);
ulong addr = le32_to_cpu(ent->t258.base_addr);
uint offset = ent->t258.pci_offset;
uint count = le16_to_cpu(ent->t258.reg_count);
uint width = ent->t258.reg_width;
ql_dbg(ql_dbg_misc, vha, 0xd202,
"%s: rdio t2 [%lx]\n", __func__, *len);
qla27xx_write_reg(ISPREG(vha), banksel, bank, buf);
qla27xx_read_window(ISPREG(vha), addr, offset, count, width, buf, len);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t259(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong addr = le32_to_cpu(ent->t259.base_addr);
uint banksel = ent->t259.banksel_offset;
ulong bank = le32_to_cpu(ent->t259.bank);
uint offset = ent->t259.pci_offset;
ulong data = le32_to_cpu(ent->t259.write_data);
ql_dbg(ql_dbg_misc, vha, 0xd203,
"%s: wrio t2 [%lx]\n", __func__, *len);
qla27xx_write_reg(ISPREG(vha), IOBASE(vha), addr, buf);
qla27xx_write_reg(ISPREG(vha), banksel, bank, buf);
qla27xx_write_reg(ISPREG(vha), offset, data, buf);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t260(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
uint offset = ent->t260.pci_offset;
ql_dbg(ql_dbg_misc, vha, 0xd204,
"%s: rdpci [%lx]\n", __func__, *len);
qla27xx_insert32(offset, buf, len);
qla27xx_read_reg(ISPREG(vha), offset, buf, len);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t261(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
uint offset = ent->t261.pci_offset;
ulong data = le32_to_cpu(ent->t261.write_data);
ql_dbg(ql_dbg_misc, vha, 0xd205,
"%s: wrpci [%lx]\n", __func__, *len);
qla27xx_write_reg(ISPREG(vha), offset, data, buf);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t262(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
uint area = ent->t262.ram_area;
ulong start = le32_to_cpu(ent->t262.start_addr);
ulong end = le32_to_cpu(ent->t262.end_addr);
ulong dwords;
int rc;
ql_dbg(ql_dbg_misc, vha, 0xd206,
"%s: rdram(%x) [%lx]\n", __func__, ent->t262.ram_area, *len);
if (area == T262_RAM_AREA_CRITICAL_RAM) {
;
} else if (area == T262_RAM_AREA_EXTERNAL_RAM) {
end = vha->hw->fw_memory_size;
if (buf)
ent->t262.end_addr = cpu_to_le32(end);
} else if (area == T262_RAM_AREA_SHARED_RAM) {
start = vha->hw->fw_shared_ram_start;
end = vha->hw->fw_shared_ram_end;
if (buf) {
ent->t262.start_addr = cpu_to_le32(start);
ent->t262.end_addr = cpu_to_le32(end);
}
} else if (area == T262_RAM_AREA_DDR_RAM) {
start = vha->hw->fw_ddr_ram_start;
end = vha->hw->fw_ddr_ram_end;
if (buf) {
ent->t262.start_addr = cpu_to_le32(start);
ent->t262.end_addr = cpu_to_le32(end);
}
} else if (area == T262_RAM_AREA_MISC) {
if (buf) {
ent->t262.start_addr = cpu_to_le32(start);
ent->t262.end_addr = cpu_to_le32(end);
}
} else {
ql_dbg(ql_dbg_misc, vha, 0xd022,
"%s: unknown area %x\n", __func__, area);
qla27xx_skip_entry(ent, buf);
goto done;
}
if (end < start || start == 0 || end == 0) {
ql_dbg(ql_dbg_misc, vha, 0xd023,
"%s: unusable range (start=%lx end=%lx)\n",
__func__, start, end);
qla27xx_skip_entry(ent, buf);
goto done;
}
dwords = end - start + 1;
if (buf) {
buf += *len;
rc = qla24xx_dump_ram(vha->hw, start, buf, dwords, &buf);
if (rc != QLA_SUCCESS) {
ql_dbg(ql_dbg_async, vha, 0xffff,
"%s: dump ram MB failed. Area %xh start %lxh end %lxh\n",
__func__, area, start, end);
return INVALID_ENTRY;
}
}
*len += dwords * sizeof(uint32_t);
done:
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t263(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
uint type = ent->t263.queue_type;
uint count = 0;
uint i;
uint length;
ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd207,
"%s: getq(%x) [%lx]\n", __func__, type, *len);
if (type == T263_QUEUE_TYPE_REQ) {
for (i = 0; i < vha->hw->max_req_queues; i++) {
struct req_que *req = vha->hw->req_q_map[i];
if (req || !buf) {
length = req ?
req->length : REQUEST_ENTRY_CNT_24XX;
qla27xx_insert16(i, buf, len);
qla27xx_insert16(length, buf, len);
qla27xx_insertbuf(req ? req->ring : NULL,
length * sizeof(*req->ring), buf, len);
count++;
}
}
} else if (type == T263_QUEUE_TYPE_RSP) {
for (i = 0; i < vha->hw->max_rsp_queues; i++) {
struct rsp_que *rsp = vha->hw->rsp_q_map[i];
if (rsp || !buf) {
length = rsp ?
rsp->length : RESPONSE_ENTRY_CNT_MQ;
qla27xx_insert16(i, buf, len);
qla27xx_insert16(length, buf, len);
qla27xx_insertbuf(rsp ? rsp->ring : NULL,
length * sizeof(*rsp->ring), buf, len);
count++;
}
}
} else if (QLA_TGT_MODE_ENABLED() &&
ent->t263.queue_type == T263_QUEUE_TYPE_ATIO) {
struct qla_hw_data *ha = vha->hw;
struct atio *atr = ha->tgt.atio_ring;
if (atr || !buf) {
length = ha->tgt.atio_q_length;
qla27xx_insert16(0, buf, len);
qla27xx_insert16(length, buf, len);
qla27xx_insertbuf(atr, length * sizeof(*atr), buf, len);
count++;
}
} else {
ql_dbg(ql_dbg_misc, vha, 0xd026,
"%s: unknown queue %x\n", __func__, type);
qla27xx_skip_entry(ent, buf);
}
if (buf) {
if (count)
ent->t263.num_queues = count;
else
qla27xx_skip_entry(ent, buf);
}
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t264(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ql_dbg(ql_dbg_misc, vha, 0xd208,
"%s: getfce [%lx]\n", __func__, *len);
if (vha->hw->fce) {
if (buf) {
ent->t264.fce_trace_size = FCE_SIZE;
ent->t264.write_pointer = vha->hw->fce_wr;
ent->t264.base_pointer = vha->hw->fce_dma;
ent->t264.fce_enable_mb0 = vha->hw->fce_mb[0];
ent->t264.fce_enable_mb2 = vha->hw->fce_mb[2];
ent->t264.fce_enable_mb3 = vha->hw->fce_mb[3];
ent->t264.fce_enable_mb4 = vha->hw->fce_mb[4];
ent->t264.fce_enable_mb5 = vha->hw->fce_mb[5];
ent->t264.fce_enable_mb6 = vha->hw->fce_mb[6];
}
qla27xx_insertbuf(vha->hw->fce, FCE_SIZE, buf, len);
} else {
ql_dbg(ql_dbg_misc, vha, 0xd027,
"%s: missing fce\n", __func__);
qla27xx_skip_entry(ent, buf);
}
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t265(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd209,
"%s: pause risc [%lx]\n", __func__, *len);
if (buf)
qla24xx_pause_risc(ISPREG(vha), vha->hw);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t266(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ql_dbg(ql_dbg_misc, vha, 0xd20a,
"%s: reset risc [%lx]\n", __func__, *len);
if (buf) {
if (qla24xx_soft_reset(vha->hw) != QLA_SUCCESS) {
ql_dbg(ql_dbg_async, vha, 0x5001,
"%s: unable to soft reset\n", __func__);
return INVALID_ENTRY;
}
}
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t267(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
uint offset = ent->t267.pci_offset;
ulong data = le32_to_cpu(ent->t267.data);
ql_dbg(ql_dbg_misc, vha, 0xd20b,
"%s: dis intr [%lx]\n", __func__, *len);
qla27xx_write_reg(ISPREG(vha), offset, data, buf);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t268(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ql_dbg(ql_dbg_misc, vha, 0xd20c,
"%s: gethb(%x) [%lx]\n", __func__, ent->t268.buf_type, *len);
switch (ent->t268.buf_type) {
case T268_BUF_TYPE_EXTD_TRACE:
if (vha->hw->eft) {
if (buf) {
ent->t268.buf_size = EFT_SIZE;
ent->t268.start_addr = vha->hw->eft_dma;
}
qla27xx_insertbuf(vha->hw->eft, EFT_SIZE, buf, len);
} else {
ql_dbg(ql_dbg_misc, vha, 0xd028,
"%s: missing eft\n", __func__);
qla27xx_skip_entry(ent, buf);
}
break;
case T268_BUF_TYPE_EXCH_BUFOFF:
if (vha->hw->exchoffld_buf) {
if (buf) {
ent->t268.buf_size = vha->hw->exchoffld_size;
ent->t268.start_addr =
vha->hw->exchoffld_buf_dma;
}
qla27xx_insertbuf(vha->hw->exchoffld_buf,
vha->hw->exchoffld_size, buf, len);
} else {
ql_dbg(ql_dbg_misc, vha, 0xd028,
"%s: missing exch offld\n", __func__);
qla27xx_skip_entry(ent, buf);
}
break;
case T268_BUF_TYPE_EXTD_LOGIN:
if (vha->hw->exlogin_buf) {
if (buf) {
ent->t268.buf_size = vha->hw->exlogin_size;
ent->t268.start_addr =
vha->hw->exlogin_buf_dma;
}
qla27xx_insertbuf(vha->hw->exlogin_buf,
vha->hw->exlogin_size, buf, len);
} else {
ql_dbg(ql_dbg_misc, vha, 0xd028,
"%s: missing ext login\n", __func__);
qla27xx_skip_entry(ent, buf);
}
break;
case T268_BUF_TYPE_REQ_MIRROR:
case T268_BUF_TYPE_RSP_MIRROR:
/*
* Mirror pointers are not implemented in the
* driver, instead shadow pointers are used by
* the drier. Skip these entries.
*/
qla27xx_skip_entry(ent, buf);
break;
default:
ql_dbg(ql_dbg_async, vha, 0xd02b,
"%s: unknown buffer %x\n", __func__, ent->t268.buf_type);
qla27xx_skip_entry(ent, buf);
break;
}
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t269(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ql_dbg(ql_dbg_misc, vha, 0xd20d,
"%s: scratch [%lx]\n", __func__, *len);
qla27xx_insert32(0xaaaaaaaa, buf, len);
qla27xx_insert32(0xbbbbbbbb, buf, len);
qla27xx_insert32(0xcccccccc, buf, len);
qla27xx_insert32(0xdddddddd, buf, len);
qla27xx_insert32(*len + sizeof(uint32_t), buf, len);
if (buf)
ent->t269.scratch_size = 5 * sizeof(uint32_t);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t270(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong addr = le32_to_cpu(ent->t270.addr);
ulong dwords = le32_to_cpu(ent->t270.count);
ql_dbg(ql_dbg_misc, vha, 0xd20e,
"%s: rdremreg [%lx]\n", __func__, *len);
qla27xx_write_reg(ISPREG(vha), IOBASE_ADDR, 0x40, buf);
while (dwords--) {
qla27xx_write_reg(ISPREG(vha), 0xc0, addr|0x80000000, buf);
qla27xx_insert32(addr, buf, len);
qla27xx_read_reg(ISPREG(vha), 0xc4, buf, len);
addr += sizeof(uint32_t);
}
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t271(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong addr = le32_to_cpu(ent->t271.addr);
ulong data = le32_to_cpu(ent->t271.data);
ql_dbg(ql_dbg_misc, vha, 0xd20f,
"%s: wrremreg [%lx]\n", __func__, *len);
qla27xx_write_reg(ISPREG(vha), IOBASE(vha), 0x40, buf);
qla27xx_write_reg(ISPREG(vha), 0xc4, data, buf);
qla27xx_write_reg(ISPREG(vha), 0xc0, addr, buf);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t272(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong dwords = le32_to_cpu(ent->t272.count);
ulong start = le32_to_cpu(ent->t272.addr);
ql_dbg(ql_dbg_misc, vha, 0xd210,
"%s: rdremram [%lx]\n", __func__, *len);
if (buf) {
ql_dbg(ql_dbg_misc, vha, 0xd02c,
"%s: @%lx -> (%lx dwords)\n", __func__, start, dwords);
buf += *len;
qla27xx_dump_mpi_ram(vha->hw, start, buf, dwords, &buf);
}
*len += dwords * sizeof(uint32_t);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t273(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong dwords = le32_to_cpu(ent->t273.count);
ulong addr = le32_to_cpu(ent->t273.addr);
uint32_t value;
ql_dbg(ql_dbg_misc, vha, 0xd211,
"%s: pcicfg [%lx]\n", __func__, *len);
while (dwords--) {
value = ~0;
if (pci_read_config_dword(vha->hw->pdev, addr, &value))
ql_dbg(ql_dbg_misc, vha, 0xd02d,
"%s: failed pcicfg read at %lx\n", __func__, addr);
qla27xx_insert32(addr, buf, len);
qla27xx_insert32(value, buf, len);
addr += sizeof(uint32_t);
}
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t274(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong type = ent->t274.queue_type;
uint count = 0;
uint i;
ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd212,
"%s: getqsh(%lx) [%lx]\n", __func__, type, *len);
if (type == T274_QUEUE_TYPE_REQ_SHAD) {
for (i = 0; i < vha->hw->max_req_queues; i++) {
struct req_que *req = vha->hw->req_q_map[i];
if (req || !buf) {
qla27xx_insert16(i, buf, len);
qla27xx_insert16(1, buf, len);
qla27xx_insert32(req && req->out_ptr ?
*req->out_ptr : 0, buf, len);
count++;
}
}
} else if (type == T274_QUEUE_TYPE_RSP_SHAD) {
for (i = 0; i < vha->hw->max_rsp_queues; i++) {
struct rsp_que *rsp = vha->hw->rsp_q_map[i];
if (rsp || !buf) {
qla27xx_insert16(i, buf, len);
qla27xx_insert16(1, buf, len);
qla27xx_insert32(rsp && rsp->in_ptr ?
*rsp->in_ptr : 0, buf, len);
count++;
}
}
} else if (QLA_TGT_MODE_ENABLED() &&
ent->t274.queue_type == T274_QUEUE_TYPE_ATIO_SHAD) {
struct qla_hw_data *ha = vha->hw;
struct atio *atr = ha->tgt.atio_ring_ptr;
if (atr || !buf) {
qla27xx_insert16(0, buf, len);
qla27xx_insert16(1, buf, len);
qla27xx_insert32(ha->tgt.atio_q_in ?
readl(ha->tgt.atio_q_in) : 0, buf, len);
count++;
}
} else {
ql_dbg(ql_dbg_misc, vha, 0xd02f,
"%s: unknown queue %lx\n", __func__, type);
qla27xx_skip_entry(ent, buf);
}
if (buf) {
if (count)
ent->t274.num_queues = count;
else
qla27xx_skip_entry(ent, buf);
}
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t275(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong offset = offsetof(typeof(*ent), t275.buffer);
ulong length = le32_to_cpu(ent->t275.length);
ulong size = le32_to_cpu(ent->hdr.size);
void *buffer = ent->t275.buffer;
ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd213,
"%s: buffer(%lx) [%lx]\n", __func__, length, *len);
if (!length) {
ql_dbg(ql_dbg_misc, vha, 0xd020,
"%s: buffer zero length\n", __func__);
qla27xx_skip_entry(ent, buf);
goto done;
}
if (offset + length > size) {
length = size - offset;
ql_dbg(ql_dbg_misc, vha, 0xd030,
"%s: buffer overflow, truncate [%lx]\n", __func__, length);
ent->t275.length = cpu_to_le32(length);
}
qla27xx_insertbuf(buffer, length, buf, len);
done:
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t276(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd214,
"%s: cond [%lx]\n", __func__, *len);
if (buf) {
ulong cond1 = le32_to_cpu(ent->t276.cond1);
ulong cond2 = le32_to_cpu(ent->t276.cond2);
uint type = vha->hw->pdev->device >> 4 & 0xf;
uint func = vha->hw->port_no & 0x3;
if (type != cond1 || func != cond2) {
struct qla27xx_fwdt_template *tmp = buf;
tmp->count--;
ent = qla27xx_next_entry(ent);
qla27xx_skip_entry(ent, buf);
}
}
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t277(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong cmd_addr = le32_to_cpu(ent->t277.cmd_addr);
ulong wr_cmd_data = le32_to_cpu(ent->t277.wr_cmd_data);
ulong data_addr = le32_to_cpu(ent->t277.data_addr);
ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd215,
"%s: rdpep [%lx]\n", __func__, *len);
qla27xx_insert32(wr_cmd_data, buf, len);
qla27xx_write_reg(ISPREG(vha), cmd_addr, wr_cmd_data, buf);
qla27xx_read_reg(ISPREG(vha), data_addr, buf, len);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_t278(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong cmd_addr = le32_to_cpu(ent->t278.cmd_addr);
ulong wr_cmd_data = le32_to_cpu(ent->t278.wr_cmd_data);
ulong data_addr = le32_to_cpu(ent->t278.data_addr);
ulong wr_data = le32_to_cpu(ent->t278.wr_data);
ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd216,
"%s: wrpep [%lx]\n", __func__, *len);
qla27xx_write_reg(ISPREG(vha), data_addr, wr_data, buf);
qla27xx_write_reg(ISPREG(vha), cmd_addr, wr_cmd_data, buf);
return qla27xx_next_entry(ent);
}
static struct qla27xx_fwdt_entry *
qla27xx_fwdt_entry_other(struct scsi_qla_host *vha,
struct qla27xx_fwdt_entry *ent, void *buf, ulong *len)
{
ulong type = le32_to_cpu(ent->hdr.type);
ql_dbg(ql_dbg_misc, vha, 0xd2ff,
"%s: other %lx [%lx]\n", __func__, type, *len);
qla27xx_skip_entry(ent, buf);
return qla27xx_next_entry(ent);
}
static struct {
uint type;
typeof(qla27xx_fwdt_entry_other)(*call);
} qla27xx_fwdt_entry_call[] = {
{ ENTRY_TYPE_NOP, qla27xx_fwdt_entry_t0 },
{ ENTRY_TYPE_TMP_END, qla27xx_fwdt_entry_t255 },
{ ENTRY_TYPE_RD_IOB_T1, qla27xx_fwdt_entry_t256 },
{ ENTRY_TYPE_WR_IOB_T1, qla27xx_fwdt_entry_t257 },
{ ENTRY_TYPE_RD_IOB_T2, qla27xx_fwdt_entry_t258 },
{ ENTRY_TYPE_WR_IOB_T2, qla27xx_fwdt_entry_t259 },
{ ENTRY_TYPE_RD_PCI, qla27xx_fwdt_entry_t260 },
{ ENTRY_TYPE_WR_PCI, qla27xx_fwdt_entry_t261 },
{ ENTRY_TYPE_RD_RAM, qla27xx_fwdt_entry_t262 },
{ ENTRY_TYPE_GET_QUEUE, qla27xx_fwdt_entry_t263 },
{ ENTRY_TYPE_GET_FCE, qla27xx_fwdt_entry_t264 },
{ ENTRY_TYPE_PSE_RISC, qla27xx_fwdt_entry_t265 },
{ ENTRY_TYPE_RST_RISC, qla27xx_fwdt_entry_t266 },
{ ENTRY_TYPE_DIS_INTR, qla27xx_fwdt_entry_t267 },
{ ENTRY_TYPE_GET_HBUF, qla27xx_fwdt_entry_t268 },
{ ENTRY_TYPE_SCRATCH, qla27xx_fwdt_entry_t269 },
{ ENTRY_TYPE_RDREMREG, qla27xx_fwdt_entry_t270 },
{ ENTRY_TYPE_WRREMREG, qla27xx_fwdt_entry_t271 },
{ ENTRY_TYPE_RDREMRAM, qla27xx_fwdt_entry_t272 },
{ ENTRY_TYPE_PCICFG, qla27xx_fwdt_entry_t273 },
{ ENTRY_TYPE_GET_SHADOW, qla27xx_fwdt_entry_t274 },
{ ENTRY_TYPE_WRITE_BUF, qla27xx_fwdt_entry_t275 },
{ ENTRY_TYPE_CONDITIONAL, qla27xx_fwdt_entry_t276 },
{ ENTRY_TYPE_RDPEPREG, qla27xx_fwdt_entry_t277 },
{ ENTRY_TYPE_WRPEPREG, qla27xx_fwdt_entry_t278 },
{ -1, qla27xx_fwdt_entry_other }
};
static inline
typeof(qla27xx_fwdt_entry_call->call)(qla27xx_find_entry(uint type))
{
typeof(*qla27xx_fwdt_entry_call) *list = qla27xx_fwdt_entry_call;
while (list->type < type)
list++;
if (list->type == type)
return list->call;
return qla27xx_fwdt_entry_other;
}
static void
qla27xx_walk_template(struct scsi_qla_host *vha,
struct qla27xx_fwdt_template *tmp, void *buf, ulong *len)
{
struct qla27xx_fwdt_entry *ent = (void *)tmp +
le32_to_cpu(tmp->entry_offset);
ulong type;
tmp->count = le32_to_cpu(tmp->entry_count);
ql_dbg(ql_dbg_misc, vha, 0xd01a,
"%s: entry count %u\n", __func__, tmp->count);
while (ent && tmp->count--) {
type = le32_to_cpu(ent->hdr.type);
ent = qla27xx_find_entry(type)(vha, ent, buf, len);
if (!ent)
break;
if (ent == INVALID_ENTRY) {
*len = 0;
ql_dbg(ql_dbg_async, vha, 0xffff,
"Unable to capture FW dump");
goto bailout;
}
}
if (tmp->count)
ql_dbg(ql_dbg_misc, vha, 0xd018,
"%s: entry count residual=+%u\n", __func__, tmp->count);
if (ent)
ql_dbg(ql_dbg_misc, vha, 0xd019,
"%s: missing end entry\n", __func__);
bailout:
cpu_to_le32s(&tmp->count); /* endianize residual count */
}
static void
qla27xx_time_stamp(struct qla27xx_fwdt_template *tmp)
{
tmp->capture_timestamp = cpu_to_le32(jiffies);
}
static void
qla27xx_driver_info(struct qla27xx_fwdt_template *tmp)
{
uint8_t v[] = { 0, 0, 0, 0, 0, 0 };
WARN_ON_ONCE(sscanf(qla2x00_version_str,
"%hhu.%hhu.%hhu.%hhu",
v + 0, v + 1, v + 2, v + 3) != 4);
tmp->driver_info[0] = cpu_to_le32(
v[3] << 24 | v[2] << 16 | v[1] << 8 | v[0]);
tmp->driver_info[1] = cpu_to_le32(v[5] << 8 | v[4]);
tmp->driver_info[2] = __constant_cpu_to_le32(0x12345678);
}
static void
qla27xx_firmware_info(struct scsi_qla_host *vha,
struct qla27xx_fwdt_template *tmp)
{
tmp->firmware_version[0] = cpu_to_le32(vha->hw->fw_major_version);
tmp->firmware_version[1] = cpu_to_le32(vha->hw->fw_minor_version);
tmp->firmware_version[2] = cpu_to_le32(vha->hw->fw_subminor_version);
tmp->firmware_version[3] = cpu_to_le32(
vha->hw->fw_attributes_h << 16 | vha->hw->fw_attributes);
tmp->firmware_version[4] = cpu_to_le32(
vha->hw->fw_attributes_ext[1] << 16 | vha->hw->fw_attributes_ext[0]);
}
static void
ql27xx_edit_template(struct scsi_qla_host *vha,
struct qla27xx_fwdt_template *tmp)
{
qla27xx_time_stamp(tmp);
qla27xx_driver_info(tmp);
qla27xx_firmware_info(vha, tmp);
}
static inline uint32_t
qla27xx_template_checksum(void *p, ulong size)
{
__le32 *buf = p;
uint64_t sum = 0;
size /= sizeof(*buf);
for ( ; size--; buf++)
sum += le32_to_cpu(*buf);
sum = (sum & 0xffffffff) + (sum >> 32);
return ~sum;
}
static inline int
qla27xx_verify_template_checksum(struct qla27xx_fwdt_template *tmp)
{
return qla27xx_template_checksum(tmp,
le32_to_cpu(tmp->template_size)) == 0;
}
static inline int
qla27xx_verify_template_header(struct qla27xx_fwdt_template *tmp)
{
return le32_to_cpu(tmp->template_type) == TEMPLATE_TYPE_FWDUMP;
}
static ulong
qla27xx_execute_fwdt_template(struct scsi_qla_host *vha,
struct qla27xx_fwdt_template *tmp, void *buf)
{
ulong len = 0;
if (qla27xx_fwdt_template_valid(tmp)) {
len = le32_to_cpu(tmp->template_size);
tmp = memcpy(buf, tmp, len);
ql27xx_edit_template(vha, tmp);
qla27xx_walk_template(vha, tmp, buf, &len);
}
return len;
}
ulong
qla27xx_fwdt_calculate_dump_size(struct scsi_qla_host *vha, void *p)
{
struct qla27xx_fwdt_template *tmp = p;
ulong len = 0;
if (qla27xx_fwdt_template_valid(tmp)) {
len = le32_to_cpu(tmp->template_size);
qla27xx_walk_template(vha, tmp, NULL, &len);
}
return len;
}
ulong
qla27xx_fwdt_template_size(void *p)
{
struct qla27xx_fwdt_template *tmp = p;
return le32_to_cpu(tmp->template_size);
}
int
qla27xx_fwdt_template_valid(void *p)
{
struct qla27xx_fwdt_template *tmp = p;
if (!qla27xx_verify_template_header(tmp)) {
ql_log(ql_log_warn, NULL, 0xd01c,
"%s: template type %x\n", __func__,
le32_to_cpu(tmp->template_type));
return false;
}
if (!qla27xx_verify_template_checksum(tmp)) {
ql_log(ql_log_warn, NULL, 0xd01d,
"%s: failed template checksum\n", __func__);
return false;
}
return true;
}
void
qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked)
{
ulong flags = 0;
if (!hardware_locked)
spin_lock_irqsave(&vha->hw->hardware_lock, flags);
if (!vha->hw->mpi_fw_dump) {
ql_log(ql_log_warn, vha, 0x02f3, "-> mpi_fwdump no buffer\n");
} else {
struct fwdt *fwdt = &vha->hw->fwdt[1];
ulong len;
void *buf = vha->hw->mpi_fw_dump;
bool walk_template_only = false;
if (vha->hw->mpi_fw_dumped) {
/* Use the spare area for any further dumps. */
buf += fwdt->dump_size;
walk_template_only = true;
ql_log(ql_log_warn, vha, 0x02f4,
"-> MPI firmware already dumped -- dump saving to temporary buffer %p.\n",
buf);
}
ql_log(ql_log_warn, vha, 0x02f5, "-> fwdt1 running...\n");
if (!fwdt->template) {
ql_log(ql_log_warn, vha, 0x02f6,
"-> fwdt1 no template\n");
goto bailout;
}
len = qla27xx_execute_fwdt_template(vha, fwdt->template, buf);
if (len == 0) {
goto bailout;
} else if (len != fwdt->dump_size) {
ql_log(ql_log_warn, vha, 0x02f7,
"-> fwdt1 fwdump residual=%+ld\n",
fwdt->dump_size - len);
}
vha->hw->stat.num_mpi_reset++;
if (walk_template_only)
goto bailout;
vha->hw->mpi_fw_dump_len = len;
vha->hw->mpi_fw_dumped = 1;
ql_log(ql_log_warn, vha, 0x02f8,
"-> MPI firmware dump saved to buffer (%lu/%p)\n",
vha->host_no, vha->hw->mpi_fw_dump);
qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
}
bailout:
if (!hardware_locked)
spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
}
void
qla27xx_fwdump(scsi_qla_host_t *vha)
{
lockdep_assert_held(&vha->hw->hardware_lock);
if (!vha->hw->fw_dump) {
ql_log(ql_log_warn, vha, 0xd01e, "-> fwdump no buffer\n");
} else if (vha->hw->fw_dumped) {
ql_log(ql_log_warn, vha, 0xd01f,
"-> Firmware already dumped (%p) -- ignoring request\n",
vha->hw->fw_dump);
} else {
struct fwdt *fwdt = vha->hw->fwdt;
ulong len;
void *buf = vha->hw->fw_dump;
ql_log(ql_log_warn, vha, 0xd011, "-> fwdt0 running...\n");
if (!fwdt->template) {
ql_log(ql_log_warn, vha, 0xd012,
"-> fwdt0 no template\n");
return;
}
len = qla27xx_execute_fwdt_template(vha, fwdt->template, buf);
if (len == 0) {
return;
} else if (len != fwdt->dump_size) {
ql_log(ql_log_warn, vha, 0xd013,
"-> fwdt0 fwdump residual=%+ld\n",
fwdt->dump_size - len);
}
vha->hw->fw_dump_len = len;
vha->hw->fw_dumped = true;
ql_log(ql_log_warn, vha, 0xd015,
"-> Firmware dump saved to buffer (%lu/%p) <%lx>\n",
vha->host_no, vha->hw->fw_dump, vha->hw->fw_dump_cap_flags);
qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
}
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_tmpl.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/kobject.h>
#include <linux/slab.h>
#include <linux/blk-mq-pci.h>
#include <linux/refcount.h>
#include <linux/crash_dump.h>
#include <linux/trace_events.h>
#include <linux/trace.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_fc.h>
#include "qla_target.h"
/*
* Driver version
*/
char qla2x00_version_str[40];
static int apidev_major;
/*
* SRB allocation cache
*/
struct kmem_cache *srb_cachep;
static struct trace_array *qla_trc_array;
int ql2xfulldump_on_mpifail;
module_param(ql2xfulldump_on_mpifail, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(ql2xfulldump_on_mpifail,
"Set this to take full dump on MPI hang.");
int ql2xenforce_iocb_limit = 2;
module_param(ql2xenforce_iocb_limit, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(ql2xenforce_iocb_limit,
"Enforce IOCB throttling, to avoid FW congestion. (default: 2) "
"1: track usage per queue, 2: track usage per adapter");
/*
* CT6 CTX allocation cache
*/
static struct kmem_cache *ctx_cachep;
/*
* error level for logging
*/
uint ql_errlev = 0x8001;
int ql2xsecenable;
module_param(ql2xsecenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xsecenable,
"Enable/disable security. 0(Default) - Security disabled. 1 - Security enabled.");
static int ql2xenableclass2;
module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xenableclass2,
"Specify if Class 2 operations are supported from the very "
"beginning. Default is 0 - class 2 not supported.");
int ql2xlogintimeout = 20;
module_param(ql2xlogintimeout, int, S_IRUGO);
MODULE_PARM_DESC(ql2xlogintimeout,
"Login timeout value in seconds.");
int qlport_down_retry;
module_param(qlport_down_retry, int, S_IRUGO);
MODULE_PARM_DESC(qlport_down_retry,
"Maximum number of command retries to a port that returns "
"a PORT-DOWN status.");
int ql2xplogiabsentdevice;
module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xplogiabsentdevice,
"Option to enable PLOGI to devices that are not present after "
"a Fabric scan. This is needed for several broken switches. "
"Default is 0 - no PLOGI. 1 - perform PLOGI.");
int ql2xloginretrycount;
module_param(ql2xloginretrycount, int, S_IRUGO);
MODULE_PARM_DESC(ql2xloginretrycount,
"Specify an alternate value for the NVRAM login retry count.");
int ql2xallocfwdump = 1;
module_param(ql2xallocfwdump, int, S_IRUGO);
MODULE_PARM_DESC(ql2xallocfwdump,
"Option to enable allocation of memory for a firmware dump "
"during HBA initialization. Memory allocation requirements "
"vary by ISP type. Default is 1 - allocate memory.");
int ql2xextended_error_logging;
module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
module_param_named(logging, ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xextended_error_logging,
"Option to enable extended error logging,\n"
"\t\tDefault is 0 - no logging. 0x40000000 - Module Init & Probe.\n"
"\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
"\t\t0x08000000 - IO tracing. 0x04000000 - DPC Thread.\n"
"\t\t0x02000000 - Async events. 0x01000000 - Timer routines.\n"
"\t\t0x00800000 - User space. 0x00400000 - Task Management.\n"
"\t\t0x00200000 - AER/EEH. 0x00100000 - Multi Q.\n"
"\t\t0x00080000 - P3P Specific. 0x00040000 - Virtual Port.\n"
"\t\t0x00020000 - Buffer Dump. 0x00010000 - Misc.\n"
"\t\t0x00008000 - Verbose. 0x00004000 - Target.\n"
"\t\t0x00002000 - Target Mgmt. 0x00001000 - Target TMF.\n"
"\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
"\t\t0x1e400000 - Preferred value for capturing essential "
"debug information (equivalent to old "
"ql2xextended_error_logging=1).\n"
"\t\tDo LOGICAL OR of the value to enable more than one level");
int ql2xextended_error_logging_ktrace = 1;
module_param(ql2xextended_error_logging_ktrace, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xextended_error_logging_ktrace,
"Same BIT definition as ql2xextended_error_logging, but used to control logging to kernel trace buffer (default=1).\n");
int ql2xshiftctondsd = 6;
module_param(ql2xshiftctondsd, int, S_IRUGO);
MODULE_PARM_DESC(ql2xshiftctondsd,
"Set to control shifting of command type processing "
"based on total number of SG elements.");
int ql2xfdmienable = 1;
module_param(ql2xfdmienable, int, S_IRUGO|S_IWUSR);
module_param_named(fdmi, ql2xfdmienable, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xfdmienable,
"Enables FDMI registrations. "
"0 - no FDMI registrations. "
"1 - provide FDMI registrations (default).");
#define MAX_Q_DEPTH 64
static int ql2xmaxqdepth = MAX_Q_DEPTH;
module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xmaxqdepth,
"Maximum queue depth to set for each LUN. "
"Default is 64.");
int ql2xenabledif = 2;
module_param(ql2xenabledif, int, S_IRUGO);
MODULE_PARM_DESC(ql2xenabledif,
" Enable T10-CRC-DIF:\n"
" Default is 2.\n"
" 0 -- No DIF Support\n"
" 1 -- Enable DIF for all types\n"
" 2 -- Enable DIF for all types, except Type 0.\n");
#if (IS_ENABLED(CONFIG_NVME_FC))
int ql2xnvmeenable = 1;
#else
int ql2xnvmeenable;
#endif
module_param(ql2xnvmeenable, int, 0644);
MODULE_PARM_DESC(ql2xnvmeenable,
"Enables NVME support. "
"0 - no NVMe. Default is Y");
int ql2xenablehba_err_chk = 2;
module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xenablehba_err_chk,
" Enable T10-CRC-DIF Error isolation by HBA:\n"
" Default is 2.\n"
" 0 -- Error isolation disabled\n"
" 1 -- Error isolation enabled only for DIX Type 0\n"
" 2 -- Error isolation enabled for all Types\n");
int ql2xiidmaenable = 1;
module_param(ql2xiidmaenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xiidmaenable,
"Enables iIDMA settings "
"Default is 1 - perform iIDMA. 0 - no iIDMA.");
int ql2xmqsupport = 1;
module_param(ql2xmqsupport, int, S_IRUGO);
MODULE_PARM_DESC(ql2xmqsupport,
"Enable on demand multiple queue pairs support "
"Default is 1 for supported. "
"Set it to 0 to turn off mq qpair support.");
int ql2xfwloadbin;
module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
module_param_named(fwload, ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xfwloadbin,
"Option to specify location from which to load ISP firmware:.\n"
" 2 -- load firmware via the request_firmware() (hotplug).\n"
" interface.\n"
" 1 -- load firmware from flash.\n"
" 0 -- use default semantics.\n");
int ql2xetsenable;
module_param(ql2xetsenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xetsenable,
"Enables firmware ETS burst."
"Default is 0 - skip ETS enablement.");
int ql2xdbwr = 1;
module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xdbwr,
"Option to specify scheme for request queue posting.\n"
" 0 -- Regular doorbell.\n"
" 1 -- CAMRAM doorbell (faster).\n");
int ql2xgffidenable;
module_param(ql2xgffidenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xgffidenable,
"Enables GFF_ID checks of port type. "
"Default is 0 - Do not use GFF_ID information.");
int ql2xasynctmfenable = 1;
module_param(ql2xasynctmfenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xasynctmfenable,
"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
"Default is 1 - Issue TM IOCBs via mailbox mechanism.");
int ql2xdontresethba;
module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xdontresethba,
"Option to specify reset behaviour.\n"
" 0 (Default) -- Reset on failure.\n"
" 1 -- Do not reset on failure.\n");
uint64_t ql2xmaxlun = MAX_LUNS;
module_param(ql2xmaxlun, ullong, S_IRUGO);
MODULE_PARM_DESC(ql2xmaxlun,
"Defines the maximum LU number to register with the SCSI "
"midlayer. Default is 65535.");
int ql2xmdcapmask = 0x1F;
module_param(ql2xmdcapmask, int, S_IRUGO);
MODULE_PARM_DESC(ql2xmdcapmask,
"Set the Minidump driver capture mask level. "
"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
int ql2xmdenable = 1;
module_param(ql2xmdenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xmdenable,
"Enable/disable MiniDump. "
"0 - MiniDump disabled. "
"1 (Default) - MiniDump enabled.");
int ql2xexlogins;
module_param(ql2xexlogins, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xexlogins,
"Number of extended Logins. "
"0 (Default)- Disabled.");
int ql2xexchoffld = 1024;
module_param(ql2xexchoffld, uint, 0644);
MODULE_PARM_DESC(ql2xexchoffld,
"Number of target exchanges.");
int ql2xiniexchg = 1024;
module_param(ql2xiniexchg, uint, 0644);
MODULE_PARM_DESC(ql2xiniexchg,
"Number of initiator exchanges.");
int ql2xfwholdabts;
module_param(ql2xfwholdabts, int, S_IRUGO);
MODULE_PARM_DESC(ql2xfwholdabts,
"Allow FW to hold status IOCB until ABTS rsp received. "
"0 (Default) Do not set fw option. "
"1 - Set fw option to hold ABTS.");
int ql2xmvasynctoatio = 1;
module_param(ql2xmvasynctoatio, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xmvasynctoatio,
"Move PUREX, ABTS RX and RIDA IOCBs to ATIOQ"
"0 (Default). Do not move IOCBs"
"1 - Move IOCBs.");
int ql2xautodetectsfp = 1;
module_param(ql2xautodetectsfp, int, 0444);
MODULE_PARM_DESC(ql2xautodetectsfp,
"Detect SFP range and set appropriate distance.\n"
"1 (Default): Enable\n");
int ql2xenablemsix = 1;
module_param(ql2xenablemsix, int, 0444);
MODULE_PARM_DESC(ql2xenablemsix,
"Set to enable MSI or MSI-X interrupt mechanism.\n"
" Default is 1, enable MSI-X interrupt mechanism.\n"
" 0 -- enable traditional pin-based mechanism.\n"
" 1 -- enable MSI-X interrupt mechanism.\n"
" 2 -- enable MSI interrupt mechanism.\n");
int qla2xuseresexchforels;
module_param(qla2xuseresexchforels, int, 0444);
MODULE_PARM_DESC(qla2xuseresexchforels,
"Reserve 1/2 of emergency exchanges for ELS.\n"
" 0 (default): disabled");
static int ql2xprotmask;
module_param(ql2xprotmask, int, 0644);
MODULE_PARM_DESC(ql2xprotmask,
"Override DIF/DIX protection capabilities mask\n"
"Default is 0 which sets protection mask based on "
"capabilities reported by HBA firmware.\n");
static int ql2xprotguard;
module_param(ql2xprotguard, int, 0644);
MODULE_PARM_DESC(ql2xprotguard, "Override choice of DIX checksum\n"
" 0 -- Let HBA firmware decide\n"
" 1 -- Force T10 CRC\n"
" 2 -- Force IP checksum\n");
int ql2xdifbundlinginternalbuffers;
module_param(ql2xdifbundlinginternalbuffers, int, 0644);
MODULE_PARM_DESC(ql2xdifbundlinginternalbuffers,
"Force using internal buffers for DIF information\n"
"0 (Default). Based on check.\n"
"1 Force using internal buffers\n");
int ql2xsmartsan;
module_param(ql2xsmartsan, int, 0444);
module_param_named(smartsan, ql2xsmartsan, int, 0444);
MODULE_PARM_DESC(ql2xsmartsan,
"Send SmartSAN Management Attributes for FDMI Registration."
" Default is 0 - No SmartSAN registration,"
" 1 - Register SmartSAN Management Attributes.");
int ql2xrdpenable;
module_param(ql2xrdpenable, int, 0444);
module_param_named(rdpenable, ql2xrdpenable, int, 0444);
MODULE_PARM_DESC(ql2xrdpenable,
"Enables RDP responses. "
"0 - no RDP responses (default). "
"1 - provide RDP responses.");
int ql2xabts_wait_nvme = 1;
module_param(ql2xabts_wait_nvme, int, 0444);
MODULE_PARM_DESC(ql2xabts_wait_nvme,
"To wait for ABTS response on I/O timeouts for NVMe. (default: 1)");
static u32 ql2xdelay_before_pci_error_handling = 5;
module_param(ql2xdelay_before_pci_error_handling, uint, 0644);
MODULE_PARM_DESC(ql2xdelay_before_pci_error_handling,
"Number of seconds delayed before qla begin PCI error self-handling (default: 5).\n");
static void qla2x00_clear_drv_active(struct qla_hw_data *);
static void qla2x00_free_device(scsi_qla_host_t *);
static void qla2xxx_map_queues(struct Scsi_Host *shost);
static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
u32 ql2xnvme_queues = DEF_NVME_HW_QUEUES;
module_param(ql2xnvme_queues, uint, S_IRUGO);
MODULE_PARM_DESC(ql2xnvme_queues,
"Number of NVMe Queues that can be configured.\n"
"Final value will be min(ql2xnvme_queues, num_cpus,num_chip_queues)\n"
"1 - Minimum number of queues supported\n"
"8 - Default value");
int ql2xfc2target = 1;
module_param(ql2xfc2target, int, 0444);
MODULE_PARM_DESC(qla2xfc2target,
"Enables FC2 Target support. "
"0 - FC2 Target support is disabled. "
"1 - FC2 Target support is enabled (default).");
static struct scsi_transport_template *qla2xxx_transport_template = NULL;
struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
/* TODO Convert to inlines
*
* Timer routines
*/
__inline__ void
qla2x00_start_timer(scsi_qla_host_t *vha, unsigned long interval)
{
timer_setup(&vha->timer, qla2x00_timer, 0);
vha->timer.expires = jiffies + interval * HZ;
add_timer(&vha->timer);
vha->timer_active = 1;
}
static inline void
qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
{
/* Currently used for 82XX only. */
if (vha->device_flags & DFLG_DEV_FAILED) {
ql_dbg(ql_dbg_timer, vha, 0x600d,
"Device in a failed state, returning.\n");
return;
}
mod_timer(&vha->timer, jiffies + interval * HZ);
}
static __inline__ void
qla2x00_stop_timer(scsi_qla_host_t *vha)
{
del_timer_sync(&vha->timer);
vha->timer_active = 0;
}
static int qla2x00_do_dpc(void *data);
static void qla2x00_rst_aen(scsi_qla_host_t *);
static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
struct req_que **, struct rsp_que **);
static void qla2x00_free_fw_dump(struct qla_hw_data *);
static void qla2x00_mem_free(struct qla_hw_data *);
int qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
struct qla_qpair *qpair);
/* -------------------------------------------------------------------------- */
static void qla_init_base_qpair(struct scsi_qla_host *vha, struct req_que *req,
struct rsp_que *rsp)
{
struct qla_hw_data *ha = vha->hw;
rsp->qpair = ha->base_qpair;
rsp->req = req;
ha->base_qpair->hw = ha;
ha->base_qpair->req = req;
ha->base_qpair->rsp = rsp;
ha->base_qpair->vha = vha;
ha->base_qpair->qp_lock_ptr = &ha->hardware_lock;
ha->base_qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
ha->base_qpair->srb_mempool = ha->srb_mempool;
INIT_LIST_HEAD(&ha->base_qpair->hints_list);
INIT_LIST_HEAD(&ha->base_qpair->dsd_list);
ha->base_qpair->enable_class_2 = ql2xenableclass2;
/* init qpair to this cpu. Will adjust at run time. */
qla_cpu_update(rsp->qpair, raw_smp_processor_id());
ha->base_qpair->pdev = ha->pdev;
if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
ha->base_qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
}
static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
struct rsp_que *rsp)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
ha->req_q_map = kcalloc(ha->max_req_queues, sizeof(struct req_que *),
GFP_KERNEL);
if (!ha->req_q_map) {
ql_log(ql_log_fatal, vha, 0x003b,
"Unable to allocate memory for request queue ptrs.\n");
goto fail_req_map;
}
ha->rsp_q_map = kcalloc(ha->max_rsp_queues, sizeof(struct rsp_que *),
GFP_KERNEL);
if (!ha->rsp_q_map) {
ql_log(ql_log_fatal, vha, 0x003c,
"Unable to allocate memory for response queue ptrs.\n");
goto fail_rsp_map;
}
ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
if (ha->base_qpair == NULL) {
ql_log(ql_log_warn, vha, 0x00e0,
"Failed to allocate base queue pair memory.\n");
goto fail_base_qpair;
}
qla_init_base_qpair(vha, req, rsp);
if ((ql2xmqsupport || ql2xnvmeenable) && ha->max_qpairs) {
ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
GFP_KERNEL);
if (!ha->queue_pair_map) {
ql_log(ql_log_fatal, vha, 0x0180,
"Unable to allocate memory for queue pair ptrs.\n");
goto fail_qpair_map;
}
if (qla_mapq_alloc_qp_cpu_map(ha) != 0) {
kfree(ha->queue_pair_map);
ha->queue_pair_map = NULL;
goto fail_qpair_map;
}
}
/*
* Make sure we record at least the request and response queue zero in
* case we need to free them if part of the probe fails.
*/
ha->rsp_q_map[0] = rsp;
ha->req_q_map[0] = req;
set_bit(0, ha->rsp_qid_map);
set_bit(0, ha->req_qid_map);
return 0;
fail_qpair_map:
kfree(ha->base_qpair);
ha->base_qpair = NULL;
fail_base_qpair:
kfree(ha->rsp_q_map);
ha->rsp_q_map = NULL;
fail_rsp_map:
kfree(ha->req_q_map);
ha->req_q_map = NULL;
fail_req_map:
return -ENOMEM;
}
static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
{
if (IS_QLAFX00(ha)) {
if (req && req->ring_fx00)
dma_free_coherent(&ha->pdev->dev,
(req->length_fx00 + 1) * sizeof(request_t),
req->ring_fx00, req->dma_fx00);
} else if (req && req->ring)
dma_free_coherent(&ha->pdev->dev,
(req->length + 1) * sizeof(request_t),
req->ring, req->dma);
if (req)
kfree(req->outstanding_cmds);
kfree(req);
}
static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
{
if (IS_QLAFX00(ha)) {
if (rsp && rsp->ring_fx00)
dma_free_coherent(&ha->pdev->dev,
(rsp->length_fx00 + 1) * sizeof(request_t),
rsp->ring_fx00, rsp->dma_fx00);
} else if (rsp && rsp->ring) {
dma_free_coherent(&ha->pdev->dev,
(rsp->length + 1) * sizeof(response_t),
rsp->ring, rsp->dma);
}
kfree(rsp);
}
static void qla2x00_free_queues(struct qla_hw_data *ha)
{
struct req_que *req;
struct rsp_que *rsp;
int cnt;
unsigned long flags;
if (ha->queue_pair_map) {
kfree(ha->queue_pair_map);
ha->queue_pair_map = NULL;
}
if (ha->base_qpair) {
kfree(ha->base_qpair);
ha->base_qpair = NULL;
}
qla_mapq_free_qp_cpu_map(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
if (!test_bit(cnt, ha->req_qid_map))
continue;
req = ha->req_q_map[cnt];
clear_bit(cnt, ha->req_qid_map);
ha->req_q_map[cnt] = NULL;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
qla2x00_free_req_que(ha, req);
spin_lock_irqsave(&ha->hardware_lock, flags);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
kfree(ha->req_q_map);
ha->req_q_map = NULL;
spin_lock_irqsave(&ha->hardware_lock, flags);
for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
if (!test_bit(cnt, ha->rsp_qid_map))
continue;
rsp = ha->rsp_q_map[cnt];
clear_bit(cnt, ha->rsp_qid_map);
ha->rsp_q_map[cnt] = NULL;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
qla2x00_free_rsp_que(ha, rsp);
spin_lock_irqsave(&ha->hardware_lock, flags);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
kfree(ha->rsp_q_map);
ha->rsp_q_map = NULL;
}
static char *
qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
{
struct qla_hw_data *ha = vha->hw;
static const char *const pci_bus_modes[] = {
"33", "66", "100", "133",
};
uint16_t pci_bus;
pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
if (pci_bus) {
snprintf(str, str_len, "PCI-X (%s MHz)",
pci_bus_modes[pci_bus]);
} else {
pci_bus = (ha->pci_attr & BIT_8) >> 8;
snprintf(str, str_len, "PCI (%s MHz)", pci_bus_modes[pci_bus]);
}
return str;
}
static char *
qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
{
static const char *const pci_bus_modes[] = {
"33", "66", "100", "133",
};
struct qla_hw_data *ha = vha->hw;
uint32_t pci_bus;
if (pci_is_pcie(ha->pdev)) {
uint32_t lstat, lspeed, lwidth;
const char *speed_str;
pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
lspeed = lstat & PCI_EXP_LNKCAP_SLS;
lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
switch (lspeed) {
case 1:
speed_str = "2.5GT/s";
break;
case 2:
speed_str = "5.0GT/s";
break;
case 3:
speed_str = "8.0GT/s";
break;
case 4:
speed_str = "16.0GT/s";
break;
default:
speed_str = "<unknown>";
break;
}
snprintf(str, str_len, "PCIe (%s x%d)", speed_str, lwidth);
return str;
}
pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
if (pci_bus == 0 || pci_bus == 8)
snprintf(str, str_len, "PCI (%s MHz)",
pci_bus_modes[pci_bus >> 3]);
else
snprintf(str, str_len, "PCI-X Mode %d (%s MHz)",
pci_bus & 4 ? 2 : 1,
pci_bus_modes[pci_bus & 3]);
return str;
}
static char *
qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
{
char un_str[10];
struct qla_hw_data *ha = vha->hw;
snprintf(str, size, "%d.%02d.%02d ", ha->fw_major_version,
ha->fw_minor_version, ha->fw_subminor_version);
if (ha->fw_attributes & BIT_9) {
strcat(str, "FLX");
return (str);
}
switch (ha->fw_attributes & 0xFF) {
case 0x7:
strcat(str, "EF");
break;
case 0x17:
strcat(str, "TP");
break;
case 0x37:
strcat(str, "IP");
break;
case 0x77:
strcat(str, "VI");
break;
default:
sprintf(un_str, "(%x)", ha->fw_attributes);
strcat(str, un_str);
break;
}
if (ha->fw_attributes & 0x100)
strcat(str, "X");
return (str);
}
static char *
qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
{
struct qla_hw_data *ha = vha->hw;
snprintf(str, size, "%d.%02d.%02d (%x)", ha->fw_major_version,
ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
return str;
}
void qla2x00_sp_free_dma(srb_t *sp)
{
struct qla_hw_data *ha = sp->vha->hw;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
if (sp->flags & SRB_DMA_VALID) {
scsi_dma_unmap(cmd);
sp->flags &= ~SRB_DMA_VALID;
}
if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
}
if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
/* List assured to be having elements */
qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
}
if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
}
if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
struct ct6_dsd *ctx1 = &sp->u.scmd.ct6_ctx;
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
ctx1->fcp_cmnd_dma);
list_splice(&ctx1->dsd_list, &sp->qpair->dsd_list);
sp->qpair->dsd_inuse -= ctx1->dsd_use_cnt;
sp->qpair->dsd_avail += ctx1->dsd_use_cnt;
}
if (sp->flags & SRB_GOT_BUF)
qla_put_buf(sp->qpair, &sp->u.scmd.buf_dsc);
}
void qla2x00_sp_compl(srb_t *sp, int res)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct completion *comp = sp->comp;
/* kref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
cmd->result = res;
sp->type = 0;
scsi_done(cmd);
if (comp)
complete(comp);
}
void qla2xxx_qpair_sp_free_dma(srb_t *sp)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct qla_hw_data *ha = sp->fcport->vha->hw;
if (sp->flags & SRB_DMA_VALID) {
scsi_dma_unmap(cmd);
sp->flags &= ~SRB_DMA_VALID;
}
if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
}
if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
/* List assured to be having elements */
qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
}
if (sp->flags & SRB_DIF_BUNDL_DMA_VALID) {
struct crc_context *difctx = sp->u.scmd.crc_ctx;
struct dsd_dma *dif_dsd, *nxt_dsd;
list_for_each_entry_safe(dif_dsd, nxt_dsd,
&difctx->ldif_dma_hndl_list, list) {
list_del(&dif_dsd->list);
dma_pool_free(ha->dif_bundl_pool, dif_dsd->dsd_addr,
dif_dsd->dsd_list_dma);
kfree(dif_dsd);
difctx->no_dif_bundl--;
}
list_for_each_entry_safe(dif_dsd, nxt_dsd,
&difctx->ldif_dsd_list, list) {
list_del(&dif_dsd->list);
dma_pool_free(ha->dl_dma_pool, dif_dsd->dsd_addr,
dif_dsd->dsd_list_dma);
kfree(dif_dsd);
difctx->no_ldif_dsd--;
}
if (difctx->no_ldif_dsd) {
ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
"%s: difctx->no_ldif_dsd=%x\n",
__func__, difctx->no_ldif_dsd);
}
if (difctx->no_dif_bundl) {
ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
"%s: difctx->no_dif_bundl=%x\n",
__func__, difctx->no_dif_bundl);
}
sp->flags &= ~SRB_DIF_BUNDL_DMA_VALID;
}
if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
struct ct6_dsd *ctx1 = &sp->u.scmd.ct6_ctx;
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
ctx1->fcp_cmnd_dma);
list_splice(&ctx1->dsd_list, &sp->qpair->dsd_list);
sp->qpair->dsd_inuse -= ctx1->dsd_use_cnt;
sp->qpair->dsd_avail += ctx1->dsd_use_cnt;
sp->flags &= ~SRB_FCP_CMND_DMA_VALID;
}
if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
}
if (sp->flags & SRB_GOT_BUF)
qla_put_buf(sp->qpair, &sp->u.scmd.buf_dsc);
}
void qla2xxx_qpair_sp_compl(srb_t *sp, int res)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct completion *comp = sp->comp;
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
cmd->result = res;
sp->type = 0;
scsi_done(cmd);
if (comp)
complete(comp);
}
static int
qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
srb_t *sp;
int rval;
if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags)) ||
WARN_ON_ONCE(!rport)) {
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
if (ha->mqenable) {
uint32_t tag;
uint16_t hwq;
struct qla_qpair *qpair = NULL;
tag = blk_mq_unique_tag(scsi_cmd_to_rq(cmd));
hwq = blk_mq_unique_tag_to_hwq(tag);
qpair = ha->queue_pair_map[hwq];
if (qpair)
return qla2xxx_mqueuecommand(host, cmd, qpair);
}
if (ha->flags.eeh_busy) {
if (ha->flags.pci_channel_io_perm_failure) {
ql_dbg(ql_dbg_aer, vha, 0x9010,
"PCI Channel IO permanent failure, exiting "
"cmd=%p.\n", cmd);
cmd->result = DID_NO_CONNECT << 16;
} else {
ql_dbg(ql_dbg_aer, vha, 0x9011,
"EEH_Busy, Requeuing the cmd=%p.\n", cmd);
cmd->result = DID_REQUEUE << 16;
}
goto qc24_fail_command;
}
rval = fc_remote_port_chkready(rport);
if (rval) {
cmd->result = rval;
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
"fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
cmd, rval);
goto qc24_fail_command;
}
if (!vha->flags.difdix_supported &&
scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
ql_dbg(ql_dbg_io, vha, 0x3004,
"DIF Cap not reg, fail DIF capable cmd's:%p.\n",
cmd);
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
if (!fcport || fcport->deleted) {
cmd->result = DID_IMM_RETRY << 16;
goto qc24_fail_command;
}
if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
ql_dbg(ql_dbg_io, vha, 0x3005,
"Returning DNC, fcport_state=%d loop_state=%d.\n",
atomic_read(&fcport->state),
atomic_read(&base_vha->loop_state));
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
goto qc24_target_busy;
}
/*
* Return target busy if we've received a non-zero retry_delay_timer
* in a FCP_RSP.
*/
if (fcport->retry_delay_timestamp == 0) {
/* retry delay not set */
} else if (time_after(jiffies, fcport->retry_delay_timestamp))
fcport->retry_delay_timestamp = 0;
else
goto qc24_target_busy;
sp = scsi_cmd_priv(cmd);
/* ref: INIT */
qla2xxx_init_sp(sp, vha, vha->hw->base_qpair, fcport);
sp->u.scmd.cmd = cmd;
sp->type = SRB_SCSI_CMD;
sp->free = qla2x00_sp_free_dma;
sp->done = qla2x00_sp_compl;
rval = ha->isp_ops->start_scsi(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
"Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
goto qc24_host_busy_free_sp;
}
return 0;
qc24_host_busy_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
qc24_target_busy:
return SCSI_MLQUEUE_TARGET_BUSY;
qc24_fail_command:
scsi_done(cmd);
return 0;
}
/* For MQ supported I/O */
int
qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
struct qla_qpair *qpair)
{
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
srb_t *sp;
int rval;
rval = rport ? fc_remote_port_chkready(rport) : (DID_NO_CONNECT << 16);
if (rval) {
cmd->result = rval;
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3076,
"fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
cmd, rval);
goto qc24_fail_command;
}
if (!qpair->online) {
ql_dbg(ql_dbg_io, vha, 0x3077,
"qpair not online. eeh_busy=%d.\n", ha->flags.eeh_busy);
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
if (!fcport || fcport->deleted) {
cmd->result = DID_IMM_RETRY << 16;
goto qc24_fail_command;
}
if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
ql_dbg(ql_dbg_io, vha, 0x3077,
"Returning DNC, fcport_state=%d loop_state=%d.\n",
atomic_read(&fcport->state),
atomic_read(&base_vha->loop_state));
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
goto qc24_target_busy;
}
/*
* Return target busy if we've received a non-zero retry_delay_timer
* in a FCP_RSP.
*/
if (fcport->retry_delay_timestamp == 0) {
/* retry delay not set */
} else if (time_after(jiffies, fcport->retry_delay_timestamp))
fcport->retry_delay_timestamp = 0;
else
goto qc24_target_busy;
sp = scsi_cmd_priv(cmd);
/* ref: INIT */
qla2xxx_init_sp(sp, vha, qpair, fcport);
sp->u.scmd.cmd = cmd;
sp->type = SRB_SCSI_CMD;
sp->free = qla2xxx_qpair_sp_free_dma;
sp->done = qla2xxx_qpair_sp_compl;
rval = ha->isp_ops->start_scsi_mq(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3078,
"Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
goto qc24_host_busy_free_sp;
}
return 0;
qc24_host_busy_free_sp:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
qc24_target_busy:
return SCSI_MLQUEUE_TARGET_BUSY;
qc24_fail_command:
scsi_done(cmd);
return 0;
}
/*
* qla2x00_wait_for_hba_online
* Wait till the HBA is online after going through
* <= MAX_RETRIES_OF_ISP_ABORT or
* finally HBA is disabled ie marked offline
*
* Input:
* ha - pointer to host adapter structure
*
* Note:
* Does context switching-Release SPIN_LOCK
* (if any) before calling this routine.
*
* Return:
* Success (Adapter is online) : 0
* Failed (Adapter is offline/disabled) : 1
*/
int
qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
{
int return_status;
unsigned long wait_online;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
ha->dpc_active) && time_before(jiffies, wait_online)) {
msleep(1000);
}
if (base_vha->flags.online)
return_status = QLA_SUCCESS;
else
return_status = QLA_FUNCTION_FAILED;
return (return_status);
}
static inline int test_fcport_count(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
int res;
/* Return 0 = sleep, x=wake */
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
ql_dbg(ql_dbg_init, vha, 0x00ec,
"tgt %p, fcport_count=%d\n",
vha, vha->fcport_count);
res = (vha->fcport_count == 0);
if (res) {
struct fc_port *fcport;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->deleted != QLA_SESS_DELETED) {
/* session(s) may not be fully logged in
* (ie fcport_count=0), but session
* deletion thread(s) may be inflight.
*/
res = 0;
break;
}
}
}
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return res;
}
/*
* qla2x00_wait_for_sess_deletion can only be called from remove_one.
* it has dependency on UNLOADING flag to stop device discovery
*/
void
qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha)
{
u8 i;
qla2x00_mark_all_devices_lost(vha);
for (i = 0; i < 10; i++) {
if (wait_event_timeout(vha->fcport_waitQ,
test_fcport_count(vha), HZ) > 0)
break;
}
flush_workqueue(vha->hw->wq);
}
/*
* qla2x00_wait_for_hba_ready
* Wait till the HBA is ready before doing driver unload
*
* Input:
* ha - pointer to host adapter structure
*
* Note:
* Does context switching-Release SPIN_LOCK
* (if any) before calling this routine.
*
*/
static void
qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
while ((qla2x00_reset_active(vha) || ha->dpc_active ||
ha->flags.mbox_busy) ||
test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
if (test_bit(UNLOADING, &base_vha->dpc_flags))
break;
msleep(1000);
}
}
int
qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
{
int return_status;
unsigned long wait_reset;
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
ha->dpc_active) && time_before(jiffies, wait_reset)) {
msleep(1000);
if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
ha->flags.chip_reset_done)
break;
}
if (ha->flags.chip_reset_done)
return_status = QLA_SUCCESS;
else
return_status = QLA_FUNCTION_FAILED;
return return_status;
}
/**************************************************************************
* qla2xxx_eh_abort
*
* Description:
* The abort function will abort the specified command.
*
* Input:
* cmd = Linux SCSI command packet to be aborted.
*
* Returns:
* Either SUCCESS or FAILED.
*
* Note:
* Only return FAILED if command not returned by firmware.
**************************************************************************/
static int
qla2xxx_eh_abort(struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
DECLARE_COMPLETION_ONSTACK(comp);
srb_t *sp;
int ret;
unsigned int id;
uint64_t lun;
int rval;
struct qla_hw_data *ha = vha->hw;
uint32_t ratov_j;
struct qla_qpair *qpair;
unsigned long flags;
int fast_fail_status = SUCCESS;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x8042,
"PCI/Register disconnect, exiting.\n");
qla_pci_set_eeh_busy(vha);
return FAILED;
}
/* Save any FAST_IO_FAIL value to return later if abort succeeds */
ret = fc_block_scsi_eh(cmd);
if (ret != 0)
fast_fail_status = ret;
sp = scsi_cmd_priv(cmd);
qpair = sp->qpair;
vha->cmd_timeout_cnt++;
if ((sp->fcport && sp->fcport->deleted) || !qpair)
return fast_fail_status != SUCCESS ? fast_fail_status : FAILED;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
sp->comp = ∁
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
id = cmd->device->id;
lun = cmd->device->lun;
ql_dbg(ql_dbg_taskm, vha, 0x8002,
"Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p handle=%x\n",
vha->host_no, id, lun, sp, cmd, sp->handle);
/*
* Abort will release the original Command/sp from FW. Let the
* original command call scsi_done. In return, he will wakeup
* this sleeping thread.
*/
rval = ha->isp_ops->abort_command(sp);
ql_dbg(ql_dbg_taskm, vha, 0x8003,
"Abort command mbx cmd=%p, rval=%x.\n", cmd, rval);
/* Wait for the command completion. */
ratov_j = ha->r_a_tov/10 * 4 * 1000;
ratov_j = msecs_to_jiffies(ratov_j);
switch (rval) {
case QLA_SUCCESS:
if (!wait_for_completion_timeout(&comp, ratov_j)) {
ql_dbg(ql_dbg_taskm, vha, 0xffff,
"%s: Abort wait timer (4 * R_A_TOV[%d]) expired\n",
__func__, ha->r_a_tov/10);
ret = FAILED;
} else {
ret = fast_fail_status;
}
break;
default:
ret = FAILED;
break;
}
sp->comp = NULL;
ql_log(ql_log_info, vha, 0x801c,
"Abort command issued nexus=%ld:%d:%llu -- %x.\n",
vha->host_no, id, lun, ret);
return ret;
}
#define ABORT_POLLING_PERIOD 1000
#define ABORT_WAIT_ITER ((2 * 1000) / (ABORT_POLLING_PERIOD))
/*
* Returns: QLA_SUCCESS or QLA_FUNCTION_FAILED.
*/
static int
__qla2x00_eh_wait_for_pending_commands(struct qla_qpair *qpair, unsigned int t,
uint64_t l, enum nexus_wait_type type)
{
int cnt, match, status;
unsigned long flags;
scsi_qla_host_t *vha = qpair->vha;
struct req_que *req = qpair->req;
srb_t *sp;
struct scsi_cmnd *cmd;
unsigned long wait_iter = ABORT_WAIT_ITER;
bool found;
struct qla_hw_data *ha = vha->hw;
status = QLA_SUCCESS;
while (wait_iter--) {
found = false;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
sp = req->outstanding_cmds[cnt];
if (!sp)
continue;
if (sp->type != SRB_SCSI_CMD)
continue;
if (vha->vp_idx != sp->vha->vp_idx)
continue;
match = 0;
cmd = GET_CMD_SP(sp);
switch (type) {
case WAIT_HOST:
match = 1;
break;
case WAIT_TARGET:
if (sp->fcport)
match = sp->fcport->d_id.b24 == t;
else
match = 0;
break;
case WAIT_LUN:
if (sp->fcport)
match = (sp->fcport->d_id.b24 == t &&
cmd->device->lun == l);
else
match = 0;
break;
}
if (!match)
continue;
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
if (unlikely(pci_channel_offline(ha->pdev)) ||
ha->flags.eeh_busy) {
ql_dbg(ql_dbg_taskm, vha, 0x8005,
"Return:eh_wait.\n");
return status;
}
/*
* SRB_SCSI_CMD is still in the outstanding_cmds array.
* it means scsi_done has not called. Wait for it to
* clear from outstanding_cmds.
*/
msleep(ABORT_POLLING_PERIOD);
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
found = true;
}
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
if (!found)
break;
}
if (wait_iter == -1)
status = QLA_FUNCTION_FAILED;
return status;
}
int
qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
uint64_t l, enum nexus_wait_type type)
{
struct qla_qpair *qpair;
struct qla_hw_data *ha = vha->hw;
int i, status = QLA_SUCCESS;
status = __qla2x00_eh_wait_for_pending_commands(ha->base_qpair, t, l,
type);
for (i = 0; status == QLA_SUCCESS && i < ha->max_qpairs; i++) {
qpair = ha->queue_pair_map[i];
if (!qpair)
continue;
status = __qla2x00_eh_wait_for_pending_commands(qpair, t, l,
type);
}
return status;
}
static char *reset_errors[] = {
"HBA not online",
"HBA not ready",
"Task management failed",
"Waiting for command completions",
};
static int
qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
{
struct scsi_device *sdev = cmd->device;
scsi_qla_host_t *vha = shost_priv(sdev->host);
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
struct qla_hw_data *ha = vha->hw;
int err;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x803e,
"PCI/Register disconnect, exiting.\n");
qla_pci_set_eeh_busy(vha);
return FAILED;
}
if (!fcport) {
return FAILED;
}
err = fc_block_rport(rport);
if (err != 0)
return err;
if (fcport->deleted)
return FAILED;
ql_log(ql_log_info, vha, 0x8009,
"DEVICE RESET ISSUED nexus=%ld:%d:%llu cmd=%p.\n", vha->host_no,
sdev->id, sdev->lun, cmd);
err = 0;
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x800a,
"Wait for hba online failed for cmd=%p.\n", cmd);
goto eh_reset_failed;
}
err = 2;
if (ha->isp_ops->lun_reset(fcport, sdev->lun, 1)
!= QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x800c,
"do_reset failed for cmd=%p.\n", cmd);
goto eh_reset_failed;
}
err = 3;
if (qla2x00_eh_wait_for_pending_commands(vha, fcport->d_id.b24,
cmd->device->lun,
WAIT_LUN) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x800d,
"wait for pending cmds failed for cmd=%p.\n", cmd);
goto eh_reset_failed;
}
ql_log(ql_log_info, vha, 0x800e,
"DEVICE RESET SUCCEEDED nexus:%ld:%d:%llu cmd=%p.\n",
vha->host_no, sdev->id, sdev->lun, cmd);
return SUCCESS;
eh_reset_failed:
ql_log(ql_log_info, vha, 0x800f,
"DEVICE RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n",
reset_errors[err], vha->host_no, sdev->id, sdev->lun,
cmd);
vha->reset_cmd_err_cnt++;
return FAILED;
}
static int
qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
{
struct scsi_device *sdev = cmd->device;
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
scsi_qla_host_t *vha = shost_priv(rport_to_shost(rport));
struct qla_hw_data *ha = vha->hw;
fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
int err;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x803f,
"PCI/Register disconnect, exiting.\n");
qla_pci_set_eeh_busy(vha);
return FAILED;
}
if (!fcport) {
return FAILED;
}
err = fc_block_rport(rport);
if (err != 0)
return err;
if (fcport->deleted)
return FAILED;
ql_log(ql_log_info, vha, 0x8009,
"TARGET RESET ISSUED nexus=%ld:%d cmd=%p.\n", vha->host_no,
sdev->id, cmd);
err = 0;
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x800a,
"Wait for hba online failed for cmd=%p.\n", cmd);
goto eh_reset_failed;
}
err = 2;
if (ha->isp_ops->target_reset(fcport, 0, 0) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x800c,
"target_reset failed for cmd=%p.\n", cmd);
goto eh_reset_failed;
}
err = 3;
if (qla2x00_eh_wait_for_pending_commands(vha, fcport->d_id.b24, 0,
WAIT_TARGET) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x800d,
"wait for pending cmds failed for cmd=%p.\n", cmd);
goto eh_reset_failed;
}
ql_log(ql_log_info, vha, 0x800e,
"TARGET RESET SUCCEEDED nexus:%ld:%d cmd=%p.\n",
vha->host_no, sdev->id, cmd);
return SUCCESS;
eh_reset_failed:
ql_log(ql_log_info, vha, 0x800f,
"TARGET RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n",
reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
cmd);
vha->reset_cmd_err_cnt++;
return FAILED;
}
/**************************************************************************
* qla2xxx_eh_bus_reset
*
* Description:
* The bus reset function will reset the bus and abort any executing
* commands.
*
* Input:
* cmd = Linux SCSI command packet of the command that cause the
* bus reset.
*
* Returns:
* SUCCESS/FAILURE (defined as macro in scsi.h).
*
**************************************************************************/
static int
qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
int ret = FAILED;
unsigned int id;
uint64_t lun;
struct qla_hw_data *ha = vha->hw;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x8040,
"PCI/Register disconnect, exiting.\n");
qla_pci_set_eeh_busy(vha);
return FAILED;
}
id = cmd->device->id;
lun = cmd->device->lun;
if (qla2x00_chip_is_down(vha))
return ret;
ql_log(ql_log_info, vha, 0x8012,
"BUS RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0x8013,
"Wait for hba online failed board disabled.\n");
goto eh_bus_reset_done;
}
if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
ret = SUCCESS;
if (ret == FAILED)
goto eh_bus_reset_done;
/* Flush outstanding commands. */
if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x8014,
"Wait for pending commands failed.\n");
ret = FAILED;
}
eh_bus_reset_done:
ql_log(ql_log_warn, vha, 0x802b,
"BUS RESET %s nexus=%ld:%d:%llu.\n",
(ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
return ret;
}
/**************************************************************************
* qla2xxx_eh_host_reset
*
* Description:
* The reset function will reset the Adapter.
*
* Input:
* cmd = Linux SCSI command packet of the command that cause the
* adapter reset.
*
* Returns:
* Either SUCCESS or FAILED.
*
* Note:
**************************************************************************/
static int
qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
struct qla_hw_data *ha = vha->hw;
int ret = FAILED;
unsigned int id;
uint64_t lun;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, vha, 0x8041,
"PCI/Register disconnect, exiting.\n");
qla_pci_set_eeh_busy(vha);
return SUCCESS;
}
id = cmd->device->id;
lun = cmd->device->lun;
ql_log(ql_log_info, vha, 0x8018,
"ADAPTER RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
/*
* No point in issuing another reset if one is active. Also do not
* attempt a reset if we are updating flash.
*/
if (qla2x00_reset_active(vha) || ha->optrom_state != QLA_SWAITING)
goto eh_host_reset_lock;
if (vha != base_vha) {
if (qla2x00_vp_abort_isp(vha))
goto eh_host_reset_lock;
} else {
if (IS_P3P_TYPE(vha->hw)) {
if (!qla82xx_fcoe_ctx_reset(vha)) {
/* Ctx reset success */
ret = SUCCESS;
goto eh_host_reset_lock;
}
/* fall thru if ctx reset failed */
}
if (ha->wq)
flush_workqueue(ha->wq);
set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
if (ha->isp_ops->abort_isp(base_vha)) {
clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
/* failed. schedule dpc to try */
set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x802a,
"wait for hba online failed.\n");
goto eh_host_reset_lock;
}
}
clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
}
/* Waiting for command to be returned to OS.*/
if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
QLA_SUCCESS)
ret = SUCCESS;
eh_host_reset_lock:
ql_log(ql_log_info, vha, 0x8017,
"ADAPTER RESET %s nexus=%ld:%d:%llu.\n",
(ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
return ret;
}
/*
* qla2x00_loop_reset
* Issue loop reset.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_loop_reset(scsi_qla_host_t *vha)
{
int ret;
struct qla_hw_data *ha = vha->hw;
if (IS_QLAFX00(ha))
return QLA_SUCCESS;
if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(vha);
ret = qla2x00_full_login_lip(vha);
if (ret != QLA_SUCCESS) {
ql_dbg(ql_dbg_taskm, vha, 0x802d,
"full_login_lip=%d.\n", ret);
}
}
if (ha->flags.enable_lip_reset) {
ret = qla2x00_lip_reset(vha);
if (ret != QLA_SUCCESS)
ql_dbg(ql_dbg_taskm, vha, 0x802e,
"lip_reset failed (%d).\n", ret);
}
/* Issue marker command only when we are going to start the I/O */
vha->marker_needed = 1;
return QLA_SUCCESS;
}
/*
* The caller must ensure that no completion interrupts will happen
* while this function is in progress.
*/
static void qla2x00_abort_srb(struct qla_qpair *qp, srb_t *sp, const int res,
unsigned long *flags)
__releases(qp->qp_lock_ptr)
__acquires(qp->qp_lock_ptr)
{
DECLARE_COMPLETION_ONSTACK(comp);
scsi_qla_host_t *vha = qp->vha;
struct qla_hw_data *ha = vha->hw;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
int rval;
bool ret_cmd;
uint32_t ratov_j;
lockdep_assert_held(qp->qp_lock_ptr);
if (qla2x00_chip_is_down(vha)) {
sp->done(sp, res);
return;
}
if (sp->type == SRB_NVME_CMD || sp->type == SRB_NVME_LS ||
(sp->type == SRB_SCSI_CMD && !ha->flags.eeh_busy &&
!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
!qla2x00_isp_reg_stat(ha))) {
if (sp->comp) {
sp->done(sp, res);
return;
}
sp->comp = ∁
spin_unlock_irqrestore(qp->qp_lock_ptr, *flags);
rval = ha->isp_ops->abort_command(sp);
/* Wait for command completion. */
ret_cmd = false;
ratov_j = ha->r_a_tov/10 * 4 * 1000;
ratov_j = msecs_to_jiffies(ratov_j);
switch (rval) {
case QLA_SUCCESS:
if (wait_for_completion_timeout(&comp, ratov_j)) {
ql_dbg(ql_dbg_taskm, vha, 0xffff,
"%s: Abort wait timer (4 * R_A_TOV[%d]) expired\n",
__func__, ha->r_a_tov/10);
ret_cmd = true;
}
/* else FW return SP to driver */
break;
default:
ret_cmd = true;
break;
}
spin_lock_irqsave(qp->qp_lock_ptr, *flags);
if (ret_cmd && blk_mq_request_started(scsi_cmd_to_rq(cmd)))
sp->done(sp, res);
} else {
sp->done(sp, res);
}
}
/*
* The caller must ensure that no completion interrupts will happen
* while this function is in progress.
*/
static void
__qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
{
int cnt;
unsigned long flags;
srb_t *sp;
scsi_qla_host_t *vha = qp->vha;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_tgt_cmd *cmd;
if (!ha->req_q_map)
return;
spin_lock_irqsave(qp->qp_lock_ptr, flags);
req = qp->req;
for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
sp = req->outstanding_cmds[cnt];
if (sp) {
/*
* perform lockless completion during driver unload
*/
if (qla2x00_chip_is_down(vha)) {
req->outstanding_cmds[cnt] = NULL;
spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
sp->done(sp, res);
spin_lock_irqsave(qp->qp_lock_ptr, flags);
continue;
}
switch (sp->cmd_type) {
case TYPE_SRB:
qla2x00_abort_srb(qp, sp, res, &flags);
break;
case TYPE_TGT_CMD:
if (!vha->hw->tgt.tgt_ops || !tgt ||
qla_ini_mode_enabled(vha)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003,
"HOST-ABORT-HNDLR: dpc_flags=%lx. Target mode disabled\n",
vha->dpc_flags);
continue;
}
cmd = (struct qla_tgt_cmd *)sp;
cmd->aborted = 1;
break;
case TYPE_TGT_TMCMD:
/* Skip task management functions. */
break;
default:
break;
}
req->outstanding_cmds[cnt] = NULL;
}
}
spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
}
/*
* The caller must ensure that no completion interrupts will happen
* while this function is in progress.
*/
void
qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
{
int que;
struct qla_hw_data *ha = vha->hw;
/* Continue only if initialization complete. */
if (!ha->base_qpair)
return;
__qla2x00_abort_all_cmds(ha->base_qpair, res);
if (!ha->queue_pair_map)
return;
for (que = 0; que < ha->max_qpairs; que++) {
if (!ha->queue_pair_map[que])
continue;
__qla2x00_abort_all_cmds(ha->queue_pair_map[que], res);
}
}
static int
qla2xxx_slave_alloc(struct scsi_device *sdev)
{
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
if (!rport || fc_remote_port_chkready(rport))
return -ENXIO;
sdev->hostdata = *(fc_port_t **)rport->dd_data;
return 0;
}
static int
qla2xxx_slave_configure(struct scsi_device *sdev)
{
scsi_qla_host_t *vha = shost_priv(sdev->host);
struct req_que *req = vha->req;
if (IS_T10_PI_CAPABLE(vha->hw))
blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
scsi_change_queue_depth(sdev, req->max_q_depth);
return 0;
}
static void
qla2xxx_slave_destroy(struct scsi_device *sdev)
{
sdev->hostdata = NULL;
}
/**
* qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
* @ha: HA context
*
* At exit, the @ha's flags.enable_64bit_addressing set to indicated
* supported addressing method.
*/
static void
qla2x00_config_dma_addressing(struct qla_hw_data *ha)
{
/* Assume a 32bit DMA mask. */
ha->flags.enable_64bit_addressing = 0;
if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
/* Any upper-dword bits set? */
if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
!dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
/* Ok, a 64bit DMA mask is applicable. */
ha->flags.enable_64bit_addressing = 1;
ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
return;
}
}
dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
}
static void
qla2x00_enable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 1;
/* enable risc and host interrupts */
wrt_reg_word(®->ictrl, ICR_EN_INT | ICR_EN_RISC);
rd_reg_word(®->ictrl);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void
qla2x00_disable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 0;
/* disable risc and host interrupts */
wrt_reg_word(®->ictrl, 0);
rd_reg_word(®->ictrl);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void
qla24xx_enable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 1;
wrt_reg_dword(®->ictrl, ICRX_EN_RISC_INT);
rd_reg_dword(®->ictrl);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void
qla24xx_disable_intrs(struct qla_hw_data *ha)
{
unsigned long flags = 0;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
if (IS_NOPOLLING_TYPE(ha))
return;
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->interrupts_on = 0;
wrt_reg_dword(®->ictrl, 0);
rd_reg_dword(®->ictrl);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static int
qla2x00_iospace_config(struct qla_hw_data *ha)
{
resource_size_t pio;
uint16_t msix;
if (pci_request_selected_regions(ha->pdev, ha->bars,
QLA2XXX_DRIVER_NAME)) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
"Failed to reserve PIO/MMIO regions (%s), aborting.\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
if (!(ha->bars & 1))
goto skip_pio;
/* We only need PIO for Flash operations on ISP2312 v2 chips. */
pio = pci_resource_start(ha->pdev, 0);
if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
"Invalid pci I/O region size (%s).\n",
pci_name(ha->pdev));
pio = 0;
}
} else {
ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
"Region #0 no a PIO resource (%s).\n",
pci_name(ha->pdev));
pio = 0;
}
ha->pio_address = pio;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
"PIO address=%llu.\n",
(unsigned long long)ha->pio_address);
skip_pio:
/* Use MMIO operations for all accesses. */
if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
"Region #1 not an MMIO resource (%s), aborting.\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
"Invalid PCI mem region size (%s), aborting.\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
if (!ha->iobase) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
"Cannot remap MMIO (%s), aborting.\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
/* Determine queue resources */
ha->max_req_queues = ha->max_rsp_queues = 1;
ha->msix_count = QLA_BASE_VECTORS;
/* Check if FW supports MQ or not */
if (!(ha->fw_attributes & BIT_6))
goto mqiobase_exit;
if (!ql2xmqsupport || !ql2xnvmeenable ||
(!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
goto mqiobase_exit;
ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
pci_resource_len(ha->pdev, 3));
if (ha->mqiobase) {
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
"MQIO Base=%p.\n", ha->mqiobase);
/* Read MSIX vector size of the board */
pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
ha->msix_count = msix + 1;
/* Max queues are bounded by available msix vectors */
/* MB interrupt uses 1 vector */
ha->max_req_queues = ha->msix_count - 1;
ha->max_rsp_queues = ha->max_req_queues;
/* Queue pairs is the max value minus the base queue pair */
ha->max_qpairs = ha->max_rsp_queues - 1;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0188,
"Max no of queues pairs: %d.\n", ha->max_qpairs);
ql_log_pci(ql_log_info, ha->pdev, 0x001a,
"MSI-X vector count: %d.\n", ha->msix_count);
} else
ql_log_pci(ql_log_info, ha->pdev, 0x001b,
"BAR 3 not enabled.\n");
mqiobase_exit:
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
"MSIX Count: %d.\n", ha->msix_count);
return (0);
iospace_error_exit:
return (-ENOMEM);
}
static int
qla83xx_iospace_config(struct qla_hw_data *ha)
{
uint16_t msix;
if (pci_request_selected_regions(ha->pdev, ha->bars,
QLA2XXX_DRIVER_NAME)) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
"Failed to reserve PIO/MMIO regions (%s), aborting.\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
/* Use MMIO operations for all accesses. */
if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
"Invalid pci I/O region size (%s).\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
"Invalid PCI mem region size (%s), aborting\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
if (!ha->iobase) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
"Cannot remap MMIO (%s), aborting.\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
/* 83XX 26XX always use MQ type access for queues
* - mbar 2, a.k.a region 4 */
ha->max_req_queues = ha->max_rsp_queues = 1;
ha->msix_count = QLA_BASE_VECTORS;
ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
pci_resource_len(ha->pdev, 4));
if (!ha->mqiobase) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
"BAR2/region4 not enabled\n");
goto mqiobase_exit;
}
ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
pci_resource_len(ha->pdev, 2));
if (ha->msixbase) {
/* Read MSIX vector size of the board */
pci_read_config_word(ha->pdev,
QLA_83XX_PCI_MSIX_CONTROL, &msix);
ha->msix_count = (msix & PCI_MSIX_FLAGS_QSIZE) + 1;
/*
* By default, driver uses at least two msix vectors
* (default & rspq)
*/
if (ql2xmqsupport || ql2xnvmeenable) {
/* MB interrupt uses 1 vector */
ha->max_req_queues = ha->msix_count - 1;
/* ATIOQ needs 1 vector. That's 1 less QPair */
if (QLA_TGT_MODE_ENABLED())
ha->max_req_queues--;
ha->max_rsp_queues = ha->max_req_queues;
/* Queue pairs is the max value minus
* the base queue pair */
ha->max_qpairs = ha->max_req_queues - 1;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x00e3,
"Max no of queues pairs: %d.\n", ha->max_qpairs);
}
ql_log_pci(ql_log_info, ha->pdev, 0x011c,
"MSI-X vector count: %d.\n", ha->msix_count);
} else
ql_log_pci(ql_log_info, ha->pdev, 0x011e,
"BAR 1 not enabled.\n");
mqiobase_exit:
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
"MSIX Count: %d.\n", ha->msix_count);
return 0;
iospace_error_exit:
return -ENOMEM;
}
static struct isp_operations qla2100_isp_ops = {
.pci_config = qla2100_pci_config,
.reset_chip = qla2x00_reset_chip,
.chip_diag = qla2x00_chip_diag,
.config_rings = qla2x00_config_rings,
.reset_adapter = qla2x00_reset_adapter,
.nvram_config = qla2x00_nvram_config,
.update_fw_options = qla2x00_update_fw_options,
.load_risc = qla2x00_load_risc,
.pci_info_str = qla2x00_pci_info_str,
.fw_version_str = qla2x00_fw_version_str,
.intr_handler = qla2100_intr_handler,
.enable_intrs = qla2x00_enable_intrs,
.disable_intrs = qla2x00_disable_intrs,
.abort_command = qla2x00_abort_command,
.target_reset = qla2x00_abort_target,
.lun_reset = qla2x00_lun_reset,
.fabric_login = qla2x00_login_fabric,
.fabric_logout = qla2x00_fabric_logout,
.calc_req_entries = qla2x00_calc_iocbs_32,
.build_iocbs = qla2x00_build_scsi_iocbs_32,
.prep_ms_iocb = qla2x00_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
.read_nvram = qla2x00_read_nvram_data,
.write_nvram = qla2x00_write_nvram_data,
.fw_dump = qla2100_fw_dump,
.beacon_on = NULL,
.beacon_off = NULL,
.beacon_blink = NULL,
.read_optrom = qla2x00_read_optrom_data,
.write_optrom = qla2x00_write_optrom_data,
.get_flash_version = qla2x00_get_flash_version,
.start_scsi = qla2x00_start_scsi,
.start_scsi_mq = NULL,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static struct isp_operations qla2300_isp_ops = {
.pci_config = qla2300_pci_config,
.reset_chip = qla2x00_reset_chip,
.chip_diag = qla2x00_chip_diag,
.config_rings = qla2x00_config_rings,
.reset_adapter = qla2x00_reset_adapter,
.nvram_config = qla2x00_nvram_config,
.update_fw_options = qla2x00_update_fw_options,
.load_risc = qla2x00_load_risc,
.pci_info_str = qla2x00_pci_info_str,
.fw_version_str = qla2x00_fw_version_str,
.intr_handler = qla2300_intr_handler,
.enable_intrs = qla2x00_enable_intrs,
.disable_intrs = qla2x00_disable_intrs,
.abort_command = qla2x00_abort_command,
.target_reset = qla2x00_abort_target,
.lun_reset = qla2x00_lun_reset,
.fabric_login = qla2x00_login_fabric,
.fabric_logout = qla2x00_fabric_logout,
.calc_req_entries = qla2x00_calc_iocbs_32,
.build_iocbs = qla2x00_build_scsi_iocbs_32,
.prep_ms_iocb = qla2x00_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
.read_nvram = qla2x00_read_nvram_data,
.write_nvram = qla2x00_write_nvram_data,
.fw_dump = qla2300_fw_dump,
.beacon_on = qla2x00_beacon_on,
.beacon_off = qla2x00_beacon_off,
.beacon_blink = qla2x00_beacon_blink,
.read_optrom = qla2x00_read_optrom_data,
.write_optrom = qla2x00_write_optrom_data,
.get_flash_version = qla2x00_get_flash_version,
.start_scsi = qla2x00_start_scsi,
.start_scsi_mq = NULL,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static struct isp_operations qla24xx_isp_ops = {
.pci_config = qla24xx_pci_config,
.reset_chip = qla24xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla24xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla24xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla24xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla24xx_intr_handler,
.enable_intrs = qla24xx_enable_intrs,
.disable_intrs = qla24xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = qla24xx_read_nvram_data,
.write_nvram = qla24xx_write_nvram_data,
.fw_dump = qla24xx_fw_dump,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = qla24xx_beacon_blink,
.read_optrom = qla24xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_start_scsi,
.start_scsi_mq = NULL,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static struct isp_operations qla25xx_isp_ops = {
.pci_config = qla25xx_pci_config,
.reset_chip = qla24xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla24xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla24xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla24xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla24xx_intr_handler,
.enable_intrs = qla24xx_enable_intrs,
.disable_intrs = qla24xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = qla25xx_read_nvram_data,
.write_nvram = qla25xx_write_nvram_data,
.fw_dump = qla25xx_fw_dump,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = qla24xx_beacon_blink,
.read_optrom = qla25xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_dif_start_scsi,
.start_scsi_mq = qla2xxx_dif_start_scsi_mq,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static struct isp_operations qla81xx_isp_ops = {
.pci_config = qla25xx_pci_config,
.reset_chip = qla24xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla24xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla81xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla81xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla24xx_intr_handler,
.enable_intrs = qla24xx_enable_intrs,
.disable_intrs = qla24xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = NULL,
.write_nvram = NULL,
.fw_dump = qla81xx_fw_dump,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = qla83xx_beacon_blink,
.read_optrom = qla25xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_dif_start_scsi,
.start_scsi_mq = qla2xxx_dif_start_scsi_mq,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static struct isp_operations qla82xx_isp_ops = {
.pci_config = qla82xx_pci_config,
.reset_chip = qla82xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla82xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla81xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla82xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla82xx_intr_handler,
.enable_intrs = qla82xx_enable_intrs,
.disable_intrs = qla82xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = qla24xx_read_nvram_data,
.write_nvram = qla24xx_write_nvram_data,
.fw_dump = qla82xx_fw_dump,
.beacon_on = qla82xx_beacon_on,
.beacon_off = qla82xx_beacon_off,
.beacon_blink = NULL,
.read_optrom = qla82xx_read_optrom_data,
.write_optrom = qla82xx_write_optrom_data,
.get_flash_version = qla82xx_get_flash_version,
.start_scsi = qla82xx_start_scsi,
.start_scsi_mq = NULL,
.abort_isp = qla82xx_abort_isp,
.iospace_config = qla82xx_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static struct isp_operations qla8044_isp_ops = {
.pci_config = qla82xx_pci_config,
.reset_chip = qla82xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla82xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla81xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla82xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla8044_intr_handler,
.enable_intrs = qla82xx_enable_intrs,
.disable_intrs = qla82xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = NULL,
.write_nvram = NULL,
.fw_dump = qla8044_fw_dump,
.beacon_on = qla82xx_beacon_on,
.beacon_off = qla82xx_beacon_off,
.beacon_blink = NULL,
.read_optrom = qla8044_read_optrom_data,
.write_optrom = qla8044_write_optrom_data,
.get_flash_version = qla82xx_get_flash_version,
.start_scsi = qla82xx_start_scsi,
.start_scsi_mq = NULL,
.abort_isp = qla8044_abort_isp,
.iospace_config = qla82xx_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static struct isp_operations qla83xx_isp_ops = {
.pci_config = qla25xx_pci_config,
.reset_chip = qla24xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla24xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla81xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla81xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla24xx_intr_handler,
.enable_intrs = qla24xx_enable_intrs,
.disable_intrs = qla24xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = NULL,
.write_nvram = NULL,
.fw_dump = qla83xx_fw_dump,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = qla83xx_beacon_blink,
.read_optrom = qla25xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_dif_start_scsi,
.start_scsi_mq = qla2xxx_dif_start_scsi_mq,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla83xx_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static struct isp_operations qlafx00_isp_ops = {
.pci_config = qlafx00_pci_config,
.reset_chip = qlafx00_soft_reset,
.chip_diag = qlafx00_chip_diag,
.config_rings = qlafx00_config_rings,
.reset_adapter = qlafx00_soft_reset,
.nvram_config = NULL,
.update_fw_options = NULL,
.load_risc = NULL,
.pci_info_str = qlafx00_pci_info_str,
.fw_version_str = qlafx00_fw_version_str,
.intr_handler = qlafx00_intr_handler,
.enable_intrs = qlafx00_enable_intrs,
.disable_intrs = qlafx00_disable_intrs,
.abort_command = qla24xx_async_abort_command,
.target_reset = qlafx00_abort_target,
.lun_reset = qlafx00_lun_reset,
.fabric_login = NULL,
.fabric_logout = NULL,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = qla24xx_read_nvram_data,
.write_nvram = qla24xx_write_nvram_data,
.fw_dump = NULL,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = NULL,
.read_optrom = qla24xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qlafx00_start_scsi,
.start_scsi_mq = NULL,
.abort_isp = qlafx00_abort_isp,
.iospace_config = qlafx00_iospace_config,
.initialize_adapter = qlafx00_initialize_adapter,
};
static struct isp_operations qla27xx_isp_ops = {
.pci_config = qla25xx_pci_config,
.reset_chip = qla24xx_reset_chip,
.chip_diag = qla24xx_chip_diag,
.config_rings = qla24xx_config_rings,
.reset_adapter = qla24xx_reset_adapter,
.nvram_config = qla81xx_nvram_config,
.update_fw_options = qla24xx_update_fw_options,
.load_risc = qla81xx_load_risc,
.pci_info_str = qla24xx_pci_info_str,
.fw_version_str = qla24xx_fw_version_str,
.intr_handler = qla24xx_intr_handler,
.enable_intrs = qla24xx_enable_intrs,
.disable_intrs = qla24xx_disable_intrs,
.abort_command = qla24xx_abort_command,
.target_reset = qla24xx_abort_target,
.lun_reset = qla24xx_lun_reset,
.fabric_login = qla24xx_login_fabric,
.fabric_logout = qla24xx_fabric_logout,
.calc_req_entries = NULL,
.build_iocbs = NULL,
.prep_ms_iocb = qla24xx_prep_ms_iocb,
.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
.read_nvram = NULL,
.write_nvram = NULL,
.fw_dump = qla27xx_fwdump,
.mpi_fw_dump = qla27xx_mpi_fwdump,
.beacon_on = qla24xx_beacon_on,
.beacon_off = qla24xx_beacon_off,
.beacon_blink = qla83xx_beacon_blink,
.read_optrom = qla25xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_dif_start_scsi,
.start_scsi_mq = qla2xxx_dif_start_scsi_mq,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla83xx_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
};
static inline void
qla2x00_set_isp_flags(struct qla_hw_data *ha)
{
ha->device_type = DT_EXTENDED_IDS;
switch (ha->pdev->device) {
case PCI_DEVICE_ID_QLOGIC_ISP2100:
ha->isp_type |= DT_ISP2100;
ha->device_type &= ~DT_EXTENDED_IDS;
ha->fw_srisc_address = RISC_START_ADDRESS_2100;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2200:
ha->isp_type |= DT_ISP2200;
ha->device_type &= ~DT_EXTENDED_IDS;
ha->fw_srisc_address = RISC_START_ADDRESS_2100;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2300:
ha->isp_type |= DT_ISP2300;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2312:
ha->isp_type |= DT_ISP2312;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2322:
ha->isp_type |= DT_ISP2322;
ha->device_type |= DT_ZIO_SUPPORTED;
if (ha->pdev->subsystem_vendor == 0x1028 &&
ha->pdev->subsystem_device == 0x0170)
ha->device_type |= DT_OEM_001;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP6312:
ha->isp_type |= DT_ISP6312;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP6322:
ha->isp_type |= DT_ISP6322;
ha->fw_srisc_address = RISC_START_ADDRESS_2300;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2422:
ha->isp_type |= DT_ISP2422;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2432:
ha->isp_type |= DT_ISP2432;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP8432:
ha->isp_type |= DT_ISP8432;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP5422:
ha->isp_type |= DT_ISP5422;
ha->device_type |= DT_FWI2;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP5432:
ha->isp_type |= DT_ISP5432;
ha->device_type |= DT_FWI2;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2532:
ha->isp_type |= DT_ISP2532;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP8001:
ha->isp_type |= DT_ISP8001;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP8021:
ha->isp_type |= DT_ISP8021;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
/* Initialize 82XX ISP flags */
qla82xx_init_flags(ha);
break;
case PCI_DEVICE_ID_QLOGIC_ISP8044:
ha->isp_type |= DT_ISP8044;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
/* Initialize 82XX ISP flags */
qla82xx_init_flags(ha);
break;
case PCI_DEVICE_ID_QLOGIC_ISP2031:
ha->isp_type |= DT_ISP2031;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->device_type |= DT_T10_PI;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP8031:
ha->isp_type |= DT_ISP8031;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->device_type |= DT_T10_PI;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISPF001:
ha->isp_type |= DT_ISPFX00;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2071:
ha->isp_type |= DT_ISP2071;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->device_type |= DT_T10_PI;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2271:
ha->isp_type |= DT_ISP2271;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->device_type |= DT_T10_PI;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2261:
ha->isp_type |= DT_ISP2261;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->device_type |= DT_T10_PI;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2081:
case PCI_DEVICE_ID_QLOGIC_ISP2089:
ha->isp_type |= DT_ISP2081;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->device_type |= DT_T10_PI;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
case PCI_DEVICE_ID_QLOGIC_ISP2281:
case PCI_DEVICE_ID_QLOGIC_ISP2289:
ha->isp_type |= DT_ISP2281;
ha->device_type |= DT_ZIO_SUPPORTED;
ha->device_type |= DT_FWI2;
ha->device_type |= DT_IIDMA;
ha->device_type |= DT_T10_PI;
ha->fw_srisc_address = RISC_START_ADDRESS_2400;
break;
}
if (IS_QLA82XX(ha))
ha->port_no = ha->portnum & 1;
else {
/* Get adapter physical port no from interrupt pin register. */
pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
if (IS_QLA25XX(ha) || IS_QLA2031(ha) ||
IS_QLA27XX(ha) || IS_QLA28XX(ha))
ha->port_no--;
else
ha->port_no = !(ha->port_no & 1);
}
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
"device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
ha->device_type, ha->port_no, ha->fw_srisc_address);
}
static void
qla2xxx_scan_start(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
if (vha->hw->flags.running_gold_fw)
return;
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(RSCN_UPDATE, &vha->dpc_flags);
set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
}
static int
qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
scsi_qla_host_t *vha = shost_priv(shost);
if (test_bit(UNLOADING, &vha->dpc_flags))
return 1;
if (!vha->host)
return 1;
if (time > vha->hw->loop_reset_delay * HZ)
return 1;
return atomic_read(&vha->loop_state) == LOOP_READY;
}
static void qla_heartbeat_work_fn(struct work_struct *work)
{
struct qla_hw_data *ha = container_of(work,
struct qla_hw_data, heartbeat_work);
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
if (!ha->flags.mbox_busy && base_vha->flags.init_done)
qla_no_op_mb(base_vha);
}
static void qla2x00_iocb_work_fn(struct work_struct *work)
{
struct scsi_qla_host *vha = container_of(work,
struct scsi_qla_host, iocb_work);
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
int i = 2;
unsigned long flags;
if (test_bit(UNLOADING, &base_vha->dpc_flags))
return;
while (!list_empty(&vha->work_list) && i > 0) {
qla2x00_do_work(vha);
i--;
}
spin_lock_irqsave(&vha->work_lock, flags);
clear_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags);
spin_unlock_irqrestore(&vha->work_lock, flags);
}
static void
qla_trace_init(void)
{
qla_trc_array = trace_array_get_by_name("qla2xxx");
if (!qla_trc_array) {
ql_log(ql_log_fatal, NULL, 0x0001,
"Unable to create qla2xxx trace instance, instance logging will be disabled.\n");
return;
}
QLA_TRACE_ENABLE(qla_trc_array);
}
static void
qla_trace_uninit(void)
{
if (!qla_trc_array)
return;
trace_array_put(qla_trc_array);
}
/*
* PCI driver interface
*/
static int
qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
int ret = -ENODEV;
struct Scsi_Host *host;
scsi_qla_host_t *base_vha = NULL;
struct qla_hw_data *ha;
char pci_info[30];
char fw_str[30], wq_name[30];
struct scsi_host_template *sht;
int bars, mem_only = 0;
uint16_t req_length = 0, rsp_length = 0;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
int i;
bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
sht = &qla2xxx_driver_template;
if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2081 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2281 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2089 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2289) {
bars = pci_select_bars(pdev, IORESOURCE_MEM);
mem_only = 1;
ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
"Mem only adapter.\n");
}
ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
"Bars=%d.\n", bars);
if (mem_only) {
if (pci_enable_device_mem(pdev))
return ret;
} else {
if (pci_enable_device(pdev))
return ret;
}
if (is_kdump_kernel()) {
ql2xmqsupport = 0;
ql2xallocfwdump = 0;
}
ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
if (!ha) {
ql_log_pci(ql_log_fatal, pdev, 0x0009,
"Unable to allocate memory for ha.\n");
goto disable_device;
}
ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
"Memory allocated for ha=%p.\n", ha);
ha->pdev = pdev;
INIT_LIST_HEAD(&ha->tgt.q_full_list);
spin_lock_init(&ha->tgt.q_full_lock);
spin_lock_init(&ha->tgt.sess_lock);
spin_lock_init(&ha->tgt.atio_lock);
spin_lock_init(&ha->sadb_lock);
INIT_LIST_HEAD(&ha->sadb_tx_index_list);
INIT_LIST_HEAD(&ha->sadb_rx_index_list);
spin_lock_init(&ha->sadb_fp_lock);
if (qla_edif_sadb_build_free_pool(ha)) {
kfree(ha);
goto disable_device;
}
atomic_set(&ha->nvme_active_aen_cnt, 0);
/* Clear our data area */
ha->bars = bars;
ha->mem_only = mem_only;
spin_lock_init(&ha->hardware_lock);
spin_lock_init(&ha->vport_slock);
mutex_init(&ha->selflogin_lock);
mutex_init(&ha->optrom_mutex);
/* Set ISP-type information. */
qla2x00_set_isp_flags(ha);
/* Set EEH reset type to fundamental if required by hba */
if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
pdev->needs_freset = 1;
ha->prev_topology = 0;
ha->init_cb_size = sizeof(init_cb_t);
ha->link_data_rate = PORT_SPEED_UNKNOWN;
ha->optrom_size = OPTROM_SIZE_2300;
ha->max_exchg = FW_MAX_EXCHANGES_CNT;
atomic_set(&ha->num_pend_mbx_stage1, 0);
atomic_set(&ha->num_pend_mbx_stage2, 0);
atomic_set(&ha->zio_threshold, DEFAULT_ZIO_THRESHOLD);
ha->last_zio_threshold = DEFAULT_ZIO_THRESHOLD;
INIT_LIST_HEAD(&ha->tmf_pending);
INIT_LIST_HEAD(&ha->tmf_active);
/* Assign ISP specific operations. */
if (IS_QLA2100(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
req_length = REQUEST_ENTRY_CNT_2100;
rsp_length = RESPONSE_ENTRY_CNT_2100;
ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
ha->gid_list_info_size = 4;
ha->flash_conf_off = ~0;
ha->flash_data_off = ~0;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
ha->isp_ops = &qla2100_isp_ops;
} else if (IS_QLA2200(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
req_length = REQUEST_ENTRY_CNT_2200;
rsp_length = RESPONSE_ENTRY_CNT_2100;
ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
ha->gid_list_info_size = 4;
ha->flash_conf_off = ~0;
ha->flash_data_off = ~0;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
ha->isp_ops = &qla2100_isp_ops;
} else if (IS_QLA23XX(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_2200;
rsp_length = RESPONSE_ENTRY_CNT_2300;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->gid_list_info_size = 6;
if (IS_QLA2322(ha) || IS_QLA6322(ha))
ha->optrom_size = OPTROM_SIZE_2322;
ha->flash_conf_off = ~0;
ha->flash_data_off = ~0;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
ha->isp_ops = &qla2300_isp_ops;
} else if (IS_QLA24XX_TYPE(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_24XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
ha->isp_ops = &qla24xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
} else if (IS_QLA25XX(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_25XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla25xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
} else if (IS_QLA81XX(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_81XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla81xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
} else if (IS_QLA82XX(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_82XX;
rsp_length = RESPONSE_ENTRY_CNT_82XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_82XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla82xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
} else if (IS_QLA8044(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_82XX;
rsp_length = RESPONSE_ENTRY_CNT_82XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_83XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla8044_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
} else if (IS_QLA83XX(ha)) {
ha->portnum = PCI_FUNC(ha->pdev->devfn);
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_83XX;
rsp_length = RESPONSE_ENTRY_CNT_83XX;
ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_83XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla83xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
} else if (IS_QLAFX00(ha)) {
ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
req_length = REQUEST_ENTRY_CNT_FX00;
rsp_length = RESPONSE_ENTRY_CNT_FX00;
ha->isp_ops = &qlafx00_isp_ops;
ha->port_down_retry_count = 30; /* default value */
ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
ha->mr.fw_hbt_en = 1;
ha->mr.host_info_resend = false;
ha->mr.hinfo_resend_timer_tick = QLAFX00_HINFO_RESEND_INTERVAL;
} else if (IS_QLA27XX(ha)) {
ha->portnum = PCI_FUNC(ha->pdev->devfn);
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_83XX;
rsp_length = RESPONSE_ENTRY_CNT_83XX;
ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_83XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla27xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
} else if (IS_QLA28XX(ha)) {
ha->portnum = PCI_FUNC(ha->pdev->devfn);
ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_83XX;
rsp_length = RESPONSE_ENTRY_CNT_83XX;
ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
ha->gid_list_info_size = 8;
ha->optrom_size = OPTROM_SIZE_28XX;
ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
ha->isp_ops = &qla27xx_isp_ops;
ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_28XX;
ha->flash_data_off = FARX_ACCESS_FLASH_DATA_28XX;
ha->nvram_conf_off = ~0;
ha->nvram_data_off = ~0;
}
ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
"mbx_count=%d, req_length=%d, "
"rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
"gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
"max_fibre_devices=%d.\n",
ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
ha->nvram_npiv_size, ha->max_fibre_devices);
ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
"isp_ops=%p, flash_conf_off=%d, "
"flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
ha->nvram_conf_off, ha->nvram_data_off);
/* Configure PCI I/O space */
ret = ha->isp_ops->iospace_config(ha);
if (ret)
goto iospace_config_failed;
ql_log_pci(ql_log_info, pdev, 0x001d,
"Found an ISP%04X irq %d iobase 0x%p.\n",
pdev->device, pdev->irq, ha->iobase);
mutex_init(&ha->vport_lock);
mutex_init(&ha->mq_lock);
init_completion(&ha->mbx_cmd_comp);
complete(&ha->mbx_cmd_comp);
init_completion(&ha->mbx_intr_comp);
init_completion(&ha->dcbx_comp);
init_completion(&ha->lb_portup_comp);
set_bit(0, (unsigned long *) ha->vp_idx_map);
qla2x00_config_dma_addressing(ha);
ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
"64 Bit addressing is %s.\n",
ha->flags.enable_64bit_addressing ? "enable" :
"disable");
ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
if (ret) {
ql_log_pci(ql_log_fatal, pdev, 0x0031,
"Failed to allocate memory for adapter, aborting.\n");
goto probe_hw_failed;
}
req->max_q_depth = MAX_Q_DEPTH;
if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
req->max_q_depth = ql2xmaxqdepth;
base_vha = qla2x00_create_host(sht, ha);
if (!base_vha) {
ret = -ENOMEM;
goto probe_hw_failed;
}
pci_set_drvdata(pdev, base_vha);
set_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
host = base_vha->host;
base_vha->req = req;
if (IS_QLA2XXX_MIDTYPE(ha))
base_vha->mgmt_svr_loop_id =
qla2x00_reserve_mgmt_server_loop_id(base_vha);
else
base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
base_vha->vp_idx;
/* Setup fcport template structure. */
ha->mr.fcport.vha = base_vha;
ha->mr.fcport.port_type = FCT_UNKNOWN;
ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
ha->mr.fcport.scan_state = 1;
qla2xxx_reset_stats(host, QLA2XX_HW_ERROR | QLA2XX_SHT_LNK_DWN |
QLA2XX_INT_ERR | QLA2XX_CMD_TIMEOUT |
QLA2XX_RESET_CMD_ERR | QLA2XX_TGT_SHT_LNK_DOWN);
/* Set the SG table size based on ISP type */
if (!IS_FWI2_CAPABLE(ha)) {
if (IS_QLA2100(ha))
host->sg_tablesize = 32;
} else {
if (!IS_QLA82XX(ha))
host->sg_tablesize = QLA_SG_ALL;
}
host->max_id = ha->max_fibre_devices;
host->cmd_per_lun = 3;
host->unique_id = host->host_no;
if (ql2xenabledif && ql2xenabledif != 2) {
ql_log(ql_log_warn, base_vha, 0x302d,
"Invalid value for ql2xenabledif, resetting it to default (2)\n");
ql2xenabledif = 2;
}
if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
host->max_cmd_len = 32;
else
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
/* Older HBAs support only 16-bit LUNs */
if (!IS_QLAFX00(ha) && !IS_FWI2_CAPABLE(ha) &&
ql2xmaxlun > 0xffff)
host->max_lun = 0xffff;
else
host->max_lun = ql2xmaxlun;
host->transportt = qla2xxx_transport_template;
sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
ql_dbg(ql_dbg_init, base_vha, 0x0033,
"max_id=%d this_id=%d "
"cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
"max_lun=%llu transportt=%p, vendor_id=%llu.\n", host->max_id,
host->this_id, host->cmd_per_lun, host->unique_id,
host->max_cmd_len, host->max_channel, host->max_lun,
host->transportt, sht->vendor_id);
INIT_WORK(&ha->heartbeat_work, qla_heartbeat_work_fn);
/* Set up the irqs */
ret = qla2x00_request_irqs(ha, rsp);
if (ret)
goto probe_failed;
/* Alloc arrays of request and response ring ptrs */
ret = qla2x00_alloc_queues(ha, req, rsp);
if (ret) {
ql_log(ql_log_fatal, base_vha, 0x003d,
"Failed to allocate memory for queue pointers..."
"aborting.\n");
ret = -ENODEV;
goto probe_failed;
}
if (ha->mqenable) {
/* number of hardware queues supported by blk/scsi-mq*/
host->nr_hw_queues = ha->max_qpairs;
ql_dbg(ql_dbg_init, base_vha, 0x0192,
"blk/scsi-mq enabled, HW queues = %d.\n", host->nr_hw_queues);
} else {
if (ql2xnvmeenable) {
host->nr_hw_queues = ha->max_qpairs;
ql_dbg(ql_dbg_init, base_vha, 0x0194,
"FC-NVMe support is enabled, HW queues=%d\n",
host->nr_hw_queues);
} else {
ql_dbg(ql_dbg_init, base_vha, 0x0193,
"blk/scsi-mq disabled.\n");
}
}
qlt_probe_one_stage1(base_vha, ha);
pci_save_state(pdev);
/* Assign back pointers */
rsp->req = req;
req->rsp = rsp;
if (IS_QLAFX00(ha)) {
ha->rsp_q_map[0] = rsp;
ha->req_q_map[0] = req;
set_bit(0, ha->req_qid_map);
set_bit(0, ha->rsp_qid_map);
}
/* FWI2-capable only. */
req->req_q_in = &ha->iobase->isp24.req_q_in;
req->req_q_out = &ha->iobase->isp24.req_q_out;
rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha)) {
req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
rsp->rsp_q_out = &ha->mqiobase->isp25mq.rsp_q_out;
}
if (IS_QLAFX00(ha)) {
req->req_q_in = &ha->iobase->ispfx00.req_q_in;
req->req_q_out = &ha->iobase->ispfx00.req_q_out;
rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
}
if (IS_P3P_TYPE(ha)) {
req->req_q_out = &ha->iobase->isp82.req_q_out[0];
rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
}
ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
"rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
"req->req_q_in=%p req->req_q_out=%p "
"rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
req->req_q_in, req->req_q_out,
rsp->rsp_q_in, rsp->rsp_q_out);
ql_dbg(ql_dbg_init, base_vha, 0x003e,
"rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
ql_dbg(ql_dbg_init, base_vha, 0x003f,
"req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
if (unlikely(!ha->wq)) {
ret = -ENOMEM;
goto probe_failed;
}
if (ha->isp_ops->initialize_adapter(base_vha)) {
ql_log(ql_log_fatal, base_vha, 0x00d6,
"Failed to initialize adapter - Adapter flags %x.\n",
base_vha->device_flags);
if (IS_QLA82XX(ha)) {
qla82xx_idc_lock(ha);
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA8XXX_DEV_FAILED);
qla82xx_idc_unlock(ha);
ql_log(ql_log_fatal, base_vha, 0x00d7,
"HW State: FAILED.\n");
} else if (IS_QLA8044(ha)) {
qla8044_idc_lock(ha);
qla8044_wr_direct(base_vha,
QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_FAILED);
qla8044_idc_unlock(ha);
ql_log(ql_log_fatal, base_vha, 0x0150,
"HW State: FAILED.\n");
}
ret = -ENODEV;
goto probe_failed;
}
if (IS_QLAFX00(ha))
host->can_queue = QLAFX00_MAX_CANQUEUE;
else
host->can_queue = req->num_outstanding_cmds - 10;
ql_dbg(ql_dbg_init, base_vha, 0x0032,
"can_queue=%d, req=%p, mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
host->can_queue, base_vha->req,
base_vha->mgmt_svr_loop_id, host->sg_tablesize);
/* Check if FW supports MQ or not for ISP25xx */
if (IS_QLA25XX(ha) && !(ha->fw_attributes & BIT_6))
ha->mqenable = 0;
if (ha->mqenable) {
bool startit = false;
if (QLA_TGT_MODE_ENABLED())
startit = false;
if (ql2x_ini_mode == QLA2XXX_INI_MODE_ENABLED)
startit = true;
/* Create start of day qpairs for Block MQ */
for (i = 0; i < ha->max_qpairs; i++)
qla2xxx_create_qpair(base_vha, 5, 0, startit);
}
qla_init_iocb_limit(base_vha);
if (ha->flags.running_gold_fw)
goto skip_dpc;
/*
* Startup the kernel thread for this host adapter
*/
ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
"%s_dpc", base_vha->host_str);
if (IS_ERR(ha->dpc_thread)) {
ql_log(ql_log_fatal, base_vha, 0x00ed,
"Failed to start DPC thread.\n");
ret = PTR_ERR(ha->dpc_thread);
ha->dpc_thread = NULL;
goto probe_failed;
}
ql_dbg(ql_dbg_init, base_vha, 0x00ee,
"DPC thread started successfully.\n");
/*
* If we're not coming up in initiator mode, we might sit for
* a while without waking up the dpc thread, which leads to a
* stuck process warning. So just kick the dpc once here and
* let the kthread start (and go back to sleep in qla2x00_do_dpc).
*/
qla2xxx_wake_dpc(base_vha);
INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
INIT_WORK(&ha->idc_state_handler,
qla83xx_idc_state_handler_work);
INIT_WORK(&ha->nic_core_unrecoverable,
qla83xx_nic_core_unrecoverable_work);
}
skip_dpc:
list_add_tail(&base_vha->list, &ha->vp_list);
base_vha->host->irq = ha->pdev->irq;
/* Initialized the timer */
qla2x00_start_timer(base_vha, WATCH_INTERVAL);
ql_dbg(ql_dbg_init, base_vha, 0x00ef,
"Started qla2x00_timer with "
"interval=%d.\n", WATCH_INTERVAL);
ql_dbg(ql_dbg_init, base_vha, 0x00f0,
"Detected hba at address=%p.\n",
ha);
if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
if (ha->fw_attributes & BIT_4) {
int prot = 0, guard;
base_vha->flags.difdix_supported = 1;
ql_dbg(ql_dbg_init, base_vha, 0x00f1,
"Registering for DIF/DIX type 1 and 3 protection.\n");
if (ql2xprotmask)
scsi_host_set_prot(host, ql2xprotmask);
else
scsi_host_set_prot(host,
prot | SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE2_PROTECTION
| SHOST_DIF_TYPE3_PROTECTION
| SHOST_DIX_TYPE1_PROTECTION
| SHOST_DIX_TYPE2_PROTECTION
| SHOST_DIX_TYPE3_PROTECTION);
guard = SHOST_DIX_GUARD_CRC;
if (IS_PI_IPGUARD_CAPABLE(ha) &&
(ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
guard |= SHOST_DIX_GUARD_IP;
if (ql2xprotguard)
scsi_host_set_guard(host, ql2xprotguard);
else
scsi_host_set_guard(host, guard);
} else
base_vha->flags.difdix_supported = 0;
}
ha->isp_ops->enable_intrs(ha);
if (IS_QLAFX00(ha)) {
ret = qlafx00_fx_disc(base_vha,
&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
host->sg_tablesize = (ha->mr.extended_io_enabled) ?
QLA_SG_ALL : 128;
}
ret = scsi_add_host(host, &pdev->dev);
if (ret)
goto probe_failed;
base_vha->flags.init_done = 1;
base_vha->flags.online = 1;
ha->prev_minidump_failed = 0;
ql_dbg(ql_dbg_init, base_vha, 0x00f2,
"Init done and hba is online.\n");
if (qla_ini_mode_enabled(base_vha) ||
qla_dual_mode_enabled(base_vha))
scsi_scan_host(host);
else
ql_log(ql_log_info, base_vha, 0x0122,
"skipping scsi_scan_host() for non-initiator port\n");
qla2x00_alloc_sysfs_attr(base_vha);
if (IS_QLAFX00(ha)) {
ret = qlafx00_fx_disc(base_vha,
&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
/* Register system information */
ret = qlafx00_fx_disc(base_vha,
&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
}
qla2x00_init_host_attr(base_vha);
qla2x00_dfs_setup(base_vha);
ql_log(ql_log_info, base_vha, 0x00fb,
"QLogic %s - %s.\n", ha->model_number, ha->model_desc);
ql_log(ql_log_info, base_vha, 0x00fc,
"ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info,
sizeof(pci_info)),
pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
base_vha->host_no,
ha->isp_ops->fw_version_str(base_vha, fw_str, sizeof(fw_str)));
qlt_add_target(ha, base_vha);
clear_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
if (test_bit(UNLOADING, &base_vha->dpc_flags))
return -ENODEV;
return 0;
probe_failed:
qla_enode_stop(base_vha);
qla_edb_stop(base_vha);
vfree(base_vha->scan.l);
if (base_vha->gnl.l) {
dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
base_vha->gnl.l, base_vha->gnl.ldma);
base_vha->gnl.l = NULL;
}
if (base_vha->timer_active)
qla2x00_stop_timer(base_vha);
base_vha->flags.online = 0;
if (ha->dpc_thread) {
struct task_struct *t = ha->dpc_thread;
ha->dpc_thread = NULL;
kthread_stop(t);
}
qla2x00_free_device(base_vha);
scsi_host_put(base_vha->host);
/*
* Need to NULL out local req/rsp after
* qla2x00_free_device => qla2x00_free_queues frees
* what these are pointing to. Or else we'll
* fall over below in qla2x00_free_req/rsp_que.
*/
req = NULL;
rsp = NULL;
probe_hw_failed:
qla2x00_mem_free(ha);
qla2x00_free_req_que(ha, req);
qla2x00_free_rsp_que(ha, rsp);
qla2x00_clear_drv_active(ha);
iospace_config_failed:
if (IS_P3P_TYPE(ha)) {
if (!ha->nx_pcibase)
iounmap((device_reg_t *)ha->nx_pcibase);
if (!ql2xdbwr)
iounmap((device_reg_t *)ha->nxdb_wr_ptr);
} else {
if (ha->iobase)
iounmap(ha->iobase);
if (ha->cregbase)
iounmap(ha->cregbase);
}
pci_release_selected_regions(ha->pdev, ha->bars);
kfree(ha);
disable_device:
pci_disable_device(pdev);
return ret;
}
static void __qla_set_remove_flag(scsi_qla_host_t *base_vha)
{
scsi_qla_host_t *vp;
unsigned long flags;
struct qla_hw_data *ha;
if (!base_vha)
return;
ha = base_vha->hw;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry(vp, &ha->vp_list, list)
set_bit(PFLG_DRIVER_REMOVING, &vp->pci_flags);
/*
* Indicate device removal to prevent future board_disable
* and wait until any pending board_disable has completed.
*/
set_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags);
spin_unlock_irqrestore(&ha->vport_slock, flags);
}
static void
qla2x00_shutdown(struct pci_dev *pdev)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
vha = pci_get_drvdata(pdev);
ha = vha->hw;
ql_log(ql_log_info, vha, 0xfffa,
"Adapter shutdown\n");
/*
* Prevent future board_disable and wait
* until any pending board_disable has completed.
*/
__qla_set_remove_flag(vha);
cancel_work_sync(&ha->board_disable);
if (!atomic_read(&pdev->enable_cnt))
return;
/* Notify ISPFX00 firmware */
if (IS_QLAFX00(ha))
qlafx00_driver_shutdown(vha, 20);
/* Turn-off FCE trace */
if (ha->flags.fce_enabled) {
qla2x00_disable_fce_trace(vha, NULL, NULL);
ha->flags.fce_enabled = 0;
}
/* Turn-off EFT trace */
if (ha->eft)
qla2x00_disable_eft_trace(vha);
if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha)) {
if (ha->flags.fw_started)
qla2x00_abort_isp_cleanup(vha);
} else {
/* Stop currently executing firmware. */
qla2x00_try_to_stop_firmware(vha);
}
/* Disable timer */
if (vha->timer_active)
qla2x00_stop_timer(vha);
/* Turn adapter off line */
vha->flags.online = 0;
/* turn-off interrupts on the card */
if (ha->interrupts_on) {
vha->flags.init_done = 0;
ha->isp_ops->disable_intrs(ha);
}
qla2x00_free_irqs(vha);
qla2x00_free_fw_dump(ha);
pci_disable_device(pdev);
ql_log(ql_log_info, vha, 0xfffe,
"Adapter shutdown successfully.\n");
}
/* Deletes all the virtual ports for a given ha */
static void
qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
{
scsi_qla_host_t *vha;
unsigned long flags;
mutex_lock(&ha->vport_lock);
while (ha->cur_vport_count) {
spin_lock_irqsave(&ha->vport_slock, flags);
BUG_ON(base_vha->list.next == &ha->vp_list);
/* This assumes first entry in ha->vp_list is always base vha */
vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
scsi_host_get(vha->host);
spin_unlock_irqrestore(&ha->vport_slock, flags);
mutex_unlock(&ha->vport_lock);
qla_nvme_delete(vha);
fc_vport_terminate(vha->fc_vport);
scsi_host_put(vha->host);
mutex_lock(&ha->vport_lock);
}
mutex_unlock(&ha->vport_lock);
}
/* Stops all deferred work threads */
static void
qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
{
/* Cancel all work and destroy DPC workqueues */
if (ha->dpc_lp_wq) {
cancel_work_sync(&ha->idc_aen);
destroy_workqueue(ha->dpc_lp_wq);
ha->dpc_lp_wq = NULL;
}
if (ha->dpc_hp_wq) {
cancel_work_sync(&ha->nic_core_reset);
cancel_work_sync(&ha->idc_state_handler);
cancel_work_sync(&ha->nic_core_unrecoverable);
destroy_workqueue(ha->dpc_hp_wq);
ha->dpc_hp_wq = NULL;
}
/* Kill the kernel thread for this host */
if (ha->dpc_thread) {
struct task_struct *t = ha->dpc_thread;
/*
* qla2xxx_wake_dpc checks for ->dpc_thread
* so we need to zero it out.
*/
ha->dpc_thread = NULL;
kthread_stop(t);
}
}
static void
qla2x00_unmap_iobases(struct qla_hw_data *ha)
{
if (IS_QLA82XX(ha)) {
iounmap((device_reg_t *)ha->nx_pcibase);
if (!ql2xdbwr)
iounmap((device_reg_t *)ha->nxdb_wr_ptr);
} else {
if (ha->iobase)
iounmap(ha->iobase);
if (ha->cregbase)
iounmap(ha->cregbase);
if (ha->mqiobase)
iounmap(ha->mqiobase);
if (ha->msixbase)
iounmap(ha->msixbase);
}
}
static void
qla2x00_clear_drv_active(struct qla_hw_data *ha)
{
if (IS_QLA8044(ha)) {
qla8044_idc_lock(ha);
qla8044_clear_drv_active(ha);
qla8044_idc_unlock(ha);
} else if (IS_QLA82XX(ha)) {
qla82xx_idc_lock(ha);
qla82xx_clear_drv_active(ha);
qla82xx_idc_unlock(ha);
}
}
static void
qla2x00_remove_one(struct pci_dev *pdev)
{
scsi_qla_host_t *base_vha;
struct qla_hw_data *ha;
base_vha = pci_get_drvdata(pdev);
ha = base_vha->hw;
ql_log(ql_log_info, base_vha, 0xb079,
"Removing driver\n");
__qla_set_remove_flag(base_vha);
cancel_work_sync(&ha->board_disable);
/*
* If the PCI device is disabled then there was a PCI-disconnect and
* qla2x00_disable_board_on_pci_error has taken care of most of the
* resources.
*/
if (!atomic_read(&pdev->enable_cnt)) {
dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
base_vha->gnl.l, base_vha->gnl.ldma);
base_vha->gnl.l = NULL;
scsi_host_put(base_vha->host);
kfree(ha);
pci_set_drvdata(pdev, NULL);
return;
}
qla2x00_wait_for_hba_ready(base_vha);
/*
* if UNLOADING flag is already set, then continue unload,
* where it was set first.
*/
if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
return;
if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha)) {
if (ha->flags.fw_started)
qla2x00_abort_isp_cleanup(base_vha);
} else if (!IS_QLAFX00(ha)) {
if (IS_QLA8031(ha)) {
ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
"Clearing fcoe driver presence.\n");
if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
"Error while clearing DRV-Presence.\n");
}
qla2x00_try_to_stop_firmware(base_vha);
}
qla2x00_wait_for_sess_deletion(base_vha);
qla_nvme_delete(base_vha);
dma_free_coherent(&ha->pdev->dev,
base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma);
base_vha->gnl.l = NULL;
qla_enode_stop(base_vha);
qla_edb_stop(base_vha);
vfree(base_vha->scan.l);
if (IS_QLAFX00(ha))
qlafx00_driver_shutdown(base_vha, 20);
qla2x00_delete_all_vps(ha, base_vha);
qla2x00_dfs_remove(base_vha);
qla84xx_put_chip(base_vha);
/* Disable timer */
if (base_vha->timer_active)
qla2x00_stop_timer(base_vha);
base_vha->flags.online = 0;
/* free DMA memory */
if (ha->exlogin_buf)
qla2x00_free_exlogin_buffer(ha);
/* free DMA memory */
if (ha->exchoffld_buf)
qla2x00_free_exchoffld_buffer(ha);
qla2x00_destroy_deferred_work(ha);
qlt_remove_target(ha, base_vha);
qla2x00_free_sysfs_attr(base_vha, true);
fc_remove_host(base_vha->host);
scsi_remove_host(base_vha->host);
qla2x00_free_device(base_vha);
qla2x00_clear_drv_active(ha);
scsi_host_put(base_vha->host);
qla2x00_unmap_iobases(ha);
pci_release_selected_regions(ha->pdev, ha->bars);
kfree(ha);
pci_disable_device(pdev);
}
static inline void
qla24xx_free_purex_list(struct purex_list *list)
{
struct purex_item *item, *next;
ulong flags;
spin_lock_irqsave(&list->lock, flags);
list_for_each_entry_safe(item, next, &list->head, list) {
list_del(&item->list);
if (item == &item->vha->default_item)
continue;
kfree(item);
}
spin_unlock_irqrestore(&list->lock, flags);
}
static void
qla2x00_free_device(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
/* Disable timer */
if (vha->timer_active)
qla2x00_stop_timer(vha);
qla25xx_delete_queues(vha);
vha->flags.online = 0;
/* turn-off interrupts on the card */
if (ha->interrupts_on) {
vha->flags.init_done = 0;
ha->isp_ops->disable_intrs(ha);
}
qla2x00_free_fcports(vha);
qla2x00_free_irqs(vha);
/* Flush the work queue and remove it */
if (ha->wq) {
destroy_workqueue(ha->wq);
ha->wq = NULL;
}
qla24xx_free_purex_list(&vha->purex_list);
qla2x00_mem_free(ha);
qla82xx_md_free(vha);
qla_edif_sadb_release_free_pool(ha);
qla_edif_sadb_release(ha);
qla2x00_free_queues(ha);
}
void qla2x00_free_fcports(struct scsi_qla_host *vha)
{
fc_port_t *fcport, *tfcport;
list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list)
qla2x00_free_fcport(fcport);
}
static inline void
qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport)
{
int now;
if (!fcport->rport)
return;
if (fcport->rport) {
ql_dbg(ql_dbg_disc, fcport->vha, 0x2109,
"%s %8phN. rport %p roles %x\n",
__func__, fcport->port_name, fcport->rport,
fcport->rport->roles);
fc_remote_port_delete(fcport->rport);
}
qlt_do_generation_tick(vha, &now);
}
/*
* qla2x00_mark_device_lost Updates fcport state when device goes offline.
*
* Input: ha = adapter block pointer. fcport = port structure pointer.
*
* Return: None.
*
* Context:
*/
void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
int do_login)
{
if (IS_QLAFX00(vha->hw)) {
qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
qla2x00_schedule_rport_del(vha, fcport);
return;
}
if (atomic_read(&fcport->state) == FCS_ONLINE &&
vha->vp_idx == fcport->vha->vp_idx) {
qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
qla2x00_schedule_rport_del(vha, fcport);
}
/*
* We may need to retry the login, so don't change the state of the
* port but do the retries.
*/
if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
if (!do_login)
return;
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
}
void
qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha)
{
fc_port_t *fcport;
ql_dbg(ql_dbg_disc, vha, 0x20f1,
"Mark all dev lost\n");
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (ql2xfc2target &&
fcport->loop_id != FC_NO_LOOP_ID &&
(fcport->flags & FCF_FCP2_DEVICE) &&
fcport->port_type == FCT_TARGET &&
!qla2x00_reset_active(vha)) {
ql_dbg(ql_dbg_disc, vha, 0x211a,
"Delaying session delete for FCP2 flags 0x%x port_type = 0x%x port_id=%06x %phC",
fcport->flags, fcport->port_type,
fcport->d_id.b24, fcport->port_name);
continue;
}
fcport->scan_state = 0;
qlt_schedule_sess_for_deletion(fcport);
}
}
static void qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
{
int i;
if (IS_FWI2_CAPABLE(ha))
return;
for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
set_bit(i, ha->loop_id_map);
set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
set_bit(BROADCAST, ha->loop_id_map);
}
/*
* qla2x00_mem_alloc
* Allocates adapter memory.
*
* Returns:
* 0 = success.
* !0 = failure.
*/
static int
qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
struct req_que **req, struct rsp_que **rsp)
{
char name[16];
int rc;
if (QLA_TGT_MODE_ENABLED() || EDIF_CAP(ha)) {
ha->vp_map = kcalloc(MAX_MULTI_ID_FABRIC, sizeof(struct qla_vp_map), GFP_KERNEL);
if (!ha->vp_map)
goto fail;
}
ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
&ha->init_cb_dma, GFP_KERNEL);
if (!ha->init_cb)
goto fail_free_vp_map;
rc = btree_init32(&ha->host_map);
if (rc)
goto fail_free_init_cb;
if (qlt_mem_alloc(ha) < 0)
goto fail_free_btree;
ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
if (!ha->gid_list)
goto fail_free_tgt_mem;
ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
if (!ha->srb_mempool)
goto fail_free_gid_list;
if (IS_P3P_TYPE(ha) || IS_QLA27XX(ha) || (ql2xsecenable && IS_QLA28XX(ha))) {
/* Allocate cache for CT6 Ctx. */
if (!ctx_cachep) {
ctx_cachep = kmem_cache_create("qla2xxx_ctx",
sizeof(struct ct6_dsd), 0,
SLAB_HWCACHE_ALIGN, NULL);
if (!ctx_cachep)
goto fail_free_srb_mempool;
}
ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
ctx_cachep);
if (!ha->ctx_mempool)
goto fail_free_srb_mempool;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
"ctx_cachep=%p ctx_mempool=%p.\n",
ctx_cachep, ha->ctx_mempool);
}
/* Get memory for cached NVRAM */
ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
if (!ha->nvram)
goto fail_free_ctx_mempool;
snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
ha->pdev->device);
ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
DMA_POOL_SIZE, 8, 0);
if (!ha->s_dma_pool)
goto fail_free_nvram;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
"init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
if (IS_P3P_TYPE(ha) || ql2xenabledif || (IS_QLA28XX(ha) && ql2xsecenable)) {
ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
DSD_LIST_DMA_POOL_SIZE, 8, 0);
if (!ha->dl_dma_pool) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
"Failed to allocate memory for dl_dma_pool.\n");
goto fail_s_dma_pool;
}
ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
FCP_CMND_DMA_POOL_SIZE, 8, 0);
if (!ha->fcp_cmnd_dma_pool) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
"Failed to allocate memory for fcp_cmnd_dma_pool.\n");
goto fail_dl_dma_pool;
}
if (ql2xenabledif) {
u64 bufsize = DIF_BUNDLING_DMA_POOL_SIZE;
struct dsd_dma *dsd, *nxt;
uint i;
/* Creata a DMA pool of buffers for DIF bundling */
ha->dif_bundl_pool = dma_pool_create(name,
&ha->pdev->dev, DIF_BUNDLING_DMA_POOL_SIZE, 8, 0);
if (!ha->dif_bundl_pool) {
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
"%s: failed create dif_bundl_pool\n",
__func__);
goto fail_dif_bundl_dma_pool;
}
INIT_LIST_HEAD(&ha->pool.good.head);
INIT_LIST_HEAD(&ha->pool.unusable.head);
ha->pool.good.count = 0;
ha->pool.unusable.count = 0;
for (i = 0; i < 128; i++) {
dsd = kzalloc(sizeof(*dsd), GFP_ATOMIC);
if (!dsd) {
ql_dbg_pci(ql_dbg_init, ha->pdev,
0xe0ee, "%s: failed alloc dsd\n",
__func__);
return -ENOMEM;
}
ha->dif_bundle_kallocs++;
dsd->dsd_addr = dma_pool_alloc(
ha->dif_bundl_pool, GFP_ATOMIC,
&dsd->dsd_list_dma);
if (!dsd->dsd_addr) {
ql_dbg_pci(ql_dbg_init, ha->pdev,
0xe0ee,
"%s: failed alloc ->dsd_addr\n",
__func__);
kfree(dsd);
ha->dif_bundle_kallocs--;
continue;
}
ha->dif_bundle_dma_allocs++;
/*
* if DMA buffer crosses 4G boundary,
* put it on bad list
*/
if (MSD(dsd->dsd_list_dma) ^
MSD(dsd->dsd_list_dma + bufsize)) {
list_add_tail(&dsd->list,
&ha->pool.unusable.head);
ha->pool.unusable.count++;
} else {
list_add_tail(&dsd->list,
&ha->pool.good.head);
ha->pool.good.count++;
}
}
/* return the good ones back to the pool */
list_for_each_entry_safe(dsd, nxt,
&ha->pool.good.head, list) {
list_del(&dsd->list);
dma_pool_free(ha->dif_bundl_pool,
dsd->dsd_addr, dsd->dsd_list_dma);
ha->dif_bundle_dma_allocs--;
kfree(dsd);
ha->dif_bundle_kallocs--;
}
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
"%s: dif dma pool (good=%u unusable=%u)\n",
__func__, ha->pool.good.count,
ha->pool.unusable.count);
}
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
"dl_dma_pool=%p fcp_cmnd_dma_pool=%p dif_bundl_pool=%p.\n",
ha->dl_dma_pool, ha->fcp_cmnd_dma_pool,
ha->dif_bundl_pool);
}
/* Allocate memory for SNS commands */
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
/* Get consistent memory allocated for SNS commands */
ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
if (!ha->sns_cmd)
goto fail_dma_pool;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
"sns_cmd: %p.\n", ha->sns_cmd);
} else {
/* Get consistent memory allocated for MS IOCB */
ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
&ha->ms_iocb_dma);
if (!ha->ms_iocb)
goto fail_dma_pool;
/* Get consistent memory allocated for CT SNS commands */
ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
if (!ha->ct_sns)
goto fail_free_ms_iocb;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
"ms_iocb=%p ct_sns=%p.\n",
ha->ms_iocb, ha->ct_sns);
}
/* Allocate memory for request ring */
*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
if (!*req) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
"Failed to allocate memory for req.\n");
goto fail_req;
}
(*req)->length = req_len;
(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
((*req)->length + 1) * sizeof(request_t),
&(*req)->dma, GFP_KERNEL);
if (!(*req)->ring) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
"Failed to allocate memory for req_ring.\n");
goto fail_req_ring;
}
/* Allocate memory for response ring */
*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
if (!*rsp) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
"Failed to allocate memory for rsp.\n");
goto fail_rsp;
}
(*rsp)->hw = ha;
(*rsp)->length = rsp_len;
(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
((*rsp)->length + 1) * sizeof(response_t),
&(*rsp)->dma, GFP_KERNEL);
if (!(*rsp)->ring) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
"Failed to allocate memory for rsp_ring.\n");
goto fail_rsp_ring;
}
(*req)->rsp = *rsp;
(*rsp)->req = *req;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
"req=%p req->length=%d req->ring=%p rsp=%p "
"rsp->length=%d rsp->ring=%p.\n",
*req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
(*rsp)->ring);
/* Allocate memory for NVRAM data for vports */
if (ha->nvram_npiv_size) {
ha->npiv_info = kcalloc(ha->nvram_npiv_size,
sizeof(struct qla_npiv_entry),
GFP_KERNEL);
if (!ha->npiv_info) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
"Failed to allocate memory for npiv_info.\n");
goto fail_npiv_info;
}
} else
ha->npiv_info = NULL;
/* Get consistent memory allocated for EX-INIT-CB. */
if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha)) {
ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
&ha->ex_init_cb_dma);
if (!ha->ex_init_cb)
goto fail_ex_init_cb;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
"ex_init_cb=%p.\n", ha->ex_init_cb);
}
/* Get consistent memory allocated for Special Features-CB. */
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
ha->sf_init_cb = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL,
&ha->sf_init_cb_dma);
if (!ha->sf_init_cb)
goto fail_sf_init_cb;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0199,
"sf_init_cb=%p.\n", ha->sf_init_cb);
}
/* Get consistent memory allocated for Async Port-Database. */
if (!IS_FWI2_CAPABLE(ha)) {
ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
&ha->async_pd_dma);
if (!ha->async_pd)
goto fail_async_pd;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
"async_pd=%p.\n", ha->async_pd);
}
INIT_LIST_HEAD(&ha->vp_list);
/* Allocate memory for our loop_id bitmap */
ha->loop_id_map = kcalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE),
sizeof(long),
GFP_KERNEL);
if (!ha->loop_id_map)
goto fail_loop_id_map;
else {
qla2x00_set_reserved_loop_ids(ha);
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
"loop_id_map=%p.\n", ha->loop_id_map);
}
ha->sfp_data = dma_alloc_coherent(&ha->pdev->dev,
SFP_DEV_SIZE, &ha->sfp_data_dma, GFP_KERNEL);
if (!ha->sfp_data) {
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
"Unable to allocate memory for SFP read-data.\n");
goto fail_sfp_data;
}
ha->flt = dma_alloc_coherent(&ha->pdev->dev,
sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE, &ha->flt_dma,
GFP_KERNEL);
if (!ha->flt) {
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
"Unable to allocate memory for FLT.\n");
goto fail_flt_buffer;
}
/* allocate the purex dma pool */
ha->purex_dma_pool = dma_pool_create(name, &ha->pdev->dev,
ELS_MAX_PAYLOAD, 8, 0);
if (!ha->purex_dma_pool) {
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
"Unable to allocate purex_dma_pool.\n");
goto fail_flt;
}
ha->elsrej.size = sizeof(struct fc_els_ls_rjt) + 16;
ha->elsrej.c = dma_alloc_coherent(&ha->pdev->dev,
ha->elsrej.size,
&ha->elsrej.cdma,
GFP_KERNEL);
if (!ha->elsrej.c) {
ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
"Alloc failed for els reject cmd.\n");
goto fail_elsrej;
}
ha->elsrej.c->er_cmd = ELS_LS_RJT;
ha->elsrej.c->er_reason = ELS_RJT_LOGIC;
ha->elsrej.c->er_explan = ELS_EXPL_UNAB_DATA;
ha->lsrjt.size = sizeof(struct fcnvme_ls_rjt);
ha->lsrjt.c = dma_alloc_coherent(&ha->pdev->dev, ha->lsrjt.size,
&ha->lsrjt.cdma, GFP_KERNEL);
if (!ha->lsrjt.c) {
ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
"Alloc failed for nvme fc reject cmd.\n");
goto fail_lsrjt;
}
return 0;
fail_lsrjt:
dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
ha->elsrej.c, ha->elsrej.cdma);
fail_elsrej:
dma_pool_destroy(ha->purex_dma_pool);
fail_flt:
dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
ha->flt, ha->flt_dma);
fail_flt_buffer:
dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
ha->sfp_data, ha->sfp_data_dma);
fail_sfp_data:
kfree(ha->loop_id_map);
fail_loop_id_map:
dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
fail_async_pd:
dma_pool_free(ha->s_dma_pool, ha->sf_init_cb, ha->sf_init_cb_dma);
fail_sf_init_cb:
dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
fail_ex_init_cb:
kfree(ha->npiv_info);
fail_npiv_info:
dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
(*rsp)->ring = NULL;
(*rsp)->dma = 0;
fail_rsp_ring:
kfree(*rsp);
*rsp = NULL;
fail_rsp:
dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
sizeof(request_t), (*req)->ring, (*req)->dma);
(*req)->ring = NULL;
(*req)->dma = 0;
fail_req_ring:
kfree(*req);
*req = NULL;
fail_req:
dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
ha->ct_sns, ha->ct_sns_dma);
ha->ct_sns = NULL;
ha->ct_sns_dma = 0;
fail_free_ms_iocb:
dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
ha->ms_iocb = NULL;
ha->ms_iocb_dma = 0;
if (ha->sns_cmd)
dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
ha->sns_cmd, ha->sns_cmd_dma);
fail_dma_pool:
if (ql2xenabledif) {
struct dsd_dma *dsd, *nxt;
list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
list) {
list_del(&dsd->list);
dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
dsd->dsd_list_dma);
ha->dif_bundle_dma_allocs--;
kfree(dsd);
ha->dif_bundle_kallocs--;
ha->pool.unusable.count--;
}
dma_pool_destroy(ha->dif_bundl_pool);
ha->dif_bundl_pool = NULL;
}
fail_dif_bundl_dma_pool:
if (IS_QLA82XX(ha) || ql2xenabledif) {
dma_pool_destroy(ha->fcp_cmnd_dma_pool);
ha->fcp_cmnd_dma_pool = NULL;
}
fail_dl_dma_pool:
if (IS_QLA82XX(ha) || ql2xenabledif) {
dma_pool_destroy(ha->dl_dma_pool);
ha->dl_dma_pool = NULL;
}
fail_s_dma_pool:
dma_pool_destroy(ha->s_dma_pool);
ha->s_dma_pool = NULL;
fail_free_nvram:
kfree(ha->nvram);
ha->nvram = NULL;
fail_free_ctx_mempool:
mempool_destroy(ha->ctx_mempool);
ha->ctx_mempool = NULL;
fail_free_srb_mempool:
mempool_destroy(ha->srb_mempool);
ha->srb_mempool = NULL;
fail_free_gid_list:
dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
ha->gid_list,
ha->gid_list_dma);
ha->gid_list = NULL;
ha->gid_list_dma = 0;
fail_free_tgt_mem:
qlt_mem_free(ha);
fail_free_btree:
btree_destroy32(&ha->host_map);
fail_free_init_cb:
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
ha->init_cb_dma);
ha->init_cb = NULL;
ha->init_cb_dma = 0;
fail_free_vp_map:
kfree(ha->vp_map);
fail:
ql_log(ql_log_fatal, NULL, 0x0030,
"Memory allocation failure.\n");
return -ENOMEM;
}
int
qla2x00_set_exlogins_buffer(scsi_qla_host_t *vha)
{
int rval;
uint16_t size, max_cnt;
uint32_t temp;
struct qla_hw_data *ha = vha->hw;
/* Return if we don't need to alloacate any extended logins */
if (ql2xexlogins <= MAX_FIBRE_DEVICES_2400)
return QLA_SUCCESS;
if (!IS_EXLOGIN_OFFLD_CAPABLE(ha))
return QLA_SUCCESS;
ql_log(ql_log_info, vha, 0xd021, "EXLOGIN count: %d.\n", ql2xexlogins);
max_cnt = 0;
rval = qla_get_exlogin_status(vha, &size, &max_cnt);
if (rval != QLA_SUCCESS) {
ql_log_pci(ql_log_fatal, ha->pdev, 0xd029,
"Failed to get exlogin status.\n");
return rval;
}
temp = (ql2xexlogins > max_cnt) ? max_cnt : ql2xexlogins;
temp *= size;
if (temp != ha->exlogin_size) {
qla2x00_free_exlogin_buffer(ha);
ha->exlogin_size = temp;
ql_log(ql_log_info, vha, 0xd024,
"EXLOGIN: max_logins=%d, portdb=0x%x, total=%d.\n",
max_cnt, size, temp);
ql_log(ql_log_info, vha, 0xd025,
"EXLOGIN: requested size=0x%x\n", ha->exlogin_size);
/* Get consistent memory for extended logins */
ha->exlogin_buf = dma_alloc_coherent(&ha->pdev->dev,
ha->exlogin_size, &ha->exlogin_buf_dma, GFP_KERNEL);
if (!ha->exlogin_buf) {
ql_log_pci(ql_log_fatal, ha->pdev, 0xd02a,
"Failed to allocate memory for exlogin_buf_dma.\n");
return -ENOMEM;
}
}
/* Now configure the dma buffer */
rval = qla_set_exlogin_mem_cfg(vha, ha->exlogin_buf_dma);
if (rval) {
ql_log(ql_log_fatal, vha, 0xd033,
"Setup extended login buffer ****FAILED****.\n");
qla2x00_free_exlogin_buffer(ha);
}
return rval;
}
/*
* qla2x00_free_exlogin_buffer
*
* Input:
* ha = adapter block pointer
*/
void
qla2x00_free_exlogin_buffer(struct qla_hw_data *ha)
{
if (ha->exlogin_buf) {
dma_free_coherent(&ha->pdev->dev, ha->exlogin_size,
ha->exlogin_buf, ha->exlogin_buf_dma);
ha->exlogin_buf = NULL;
ha->exlogin_size = 0;
}
}
static void
qla2x00_number_of_exch(scsi_qla_host_t *vha, u32 *ret_cnt, u16 max_cnt)
{
u32 temp;
struct init_cb_81xx *icb = (struct init_cb_81xx *)&vha->hw->init_cb;
*ret_cnt = FW_DEF_EXCHANGES_CNT;
if (max_cnt > vha->hw->max_exchg)
max_cnt = vha->hw->max_exchg;
if (qla_ini_mode_enabled(vha)) {
if (vha->ql2xiniexchg > max_cnt)
vha->ql2xiniexchg = max_cnt;
if (vha->ql2xiniexchg > FW_DEF_EXCHANGES_CNT)
*ret_cnt = vha->ql2xiniexchg;
} else if (qla_tgt_mode_enabled(vha)) {
if (vha->ql2xexchoffld > max_cnt) {
vha->ql2xexchoffld = max_cnt;
icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
}
if (vha->ql2xexchoffld > FW_DEF_EXCHANGES_CNT)
*ret_cnt = vha->ql2xexchoffld;
} else if (qla_dual_mode_enabled(vha)) {
temp = vha->ql2xiniexchg + vha->ql2xexchoffld;
if (temp > max_cnt) {
vha->ql2xiniexchg -= (temp - max_cnt)/2;
vha->ql2xexchoffld -= (((temp - max_cnt)/2) + 1);
temp = max_cnt;
icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
}
if (temp > FW_DEF_EXCHANGES_CNT)
*ret_cnt = temp;
}
}
int
qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
{
int rval;
u16 size, max_cnt;
u32 actual_cnt, totsz;
struct qla_hw_data *ha = vha->hw;
if (!ha->flags.exchoffld_enabled)
return QLA_SUCCESS;
if (!IS_EXCHG_OFFLD_CAPABLE(ha))
return QLA_SUCCESS;
max_cnt = 0;
rval = qla_get_exchoffld_status(vha, &size, &max_cnt);
if (rval != QLA_SUCCESS) {
ql_log_pci(ql_log_fatal, ha->pdev, 0xd012,
"Failed to get exlogin status.\n");
return rval;
}
qla2x00_number_of_exch(vha, &actual_cnt, max_cnt);
ql_log(ql_log_info, vha, 0xd014,
"Actual exchange offload count: %d.\n", actual_cnt);
totsz = actual_cnt * size;
if (totsz != ha->exchoffld_size) {
qla2x00_free_exchoffld_buffer(ha);
if (actual_cnt <= FW_DEF_EXCHANGES_CNT) {
ha->exchoffld_size = 0;
ha->flags.exchoffld_enabled = 0;
return QLA_SUCCESS;
}
ha->exchoffld_size = totsz;
ql_log(ql_log_info, vha, 0xd016,
"Exchange offload: max_count=%d, actual count=%d entry sz=0x%x, total sz=0x%x\n",
max_cnt, actual_cnt, size, totsz);
ql_log(ql_log_info, vha, 0xd017,
"Exchange Buffers requested size = 0x%x\n",
ha->exchoffld_size);
/* Get consistent memory for extended logins */
ha->exchoffld_buf = dma_alloc_coherent(&ha->pdev->dev,
ha->exchoffld_size, &ha->exchoffld_buf_dma, GFP_KERNEL);
if (!ha->exchoffld_buf) {
ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
"Failed to allocate memory for Exchange Offload.\n");
if (ha->max_exchg >
(FW_DEF_EXCHANGES_CNT + REDUCE_EXCHANGES_CNT)) {
ha->max_exchg -= REDUCE_EXCHANGES_CNT;
} else if (ha->max_exchg >
(FW_DEF_EXCHANGES_CNT + 512)) {
ha->max_exchg -= 512;
} else {
ha->flags.exchoffld_enabled = 0;
ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
"Disabling Exchange offload due to lack of memory\n");
}
ha->exchoffld_size = 0;
return -ENOMEM;
}
} else if (!ha->exchoffld_buf || (actual_cnt <= FW_DEF_EXCHANGES_CNT)) {
/* pathological case */
qla2x00_free_exchoffld_buffer(ha);
ha->exchoffld_size = 0;
ha->flags.exchoffld_enabled = 0;
ql_log(ql_log_info, vha, 0xd016,
"Exchange offload not enable: offld size=%d, actual count=%d entry sz=0x%x, total sz=0x%x.\n",
ha->exchoffld_size, actual_cnt, size, totsz);
return 0;
}
/* Now configure the dma buffer */
rval = qla_set_exchoffld_mem_cfg(vha);
if (rval) {
ql_log(ql_log_fatal, vha, 0xd02e,
"Setup exchange offload buffer ****FAILED****.\n");
qla2x00_free_exchoffld_buffer(ha);
} else {
/* re-adjust number of target exchange */
struct init_cb_81xx *icb = (struct init_cb_81xx *)ha->init_cb;
if (qla_ini_mode_enabled(vha))
icb->exchange_count = 0;
else
icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
}
return rval;
}
/*
* qla2x00_free_exchoffld_buffer
*
* Input:
* ha = adapter block pointer
*/
void
qla2x00_free_exchoffld_buffer(struct qla_hw_data *ha)
{
if (ha->exchoffld_buf) {
dma_free_coherent(&ha->pdev->dev, ha->exchoffld_size,
ha->exchoffld_buf, ha->exchoffld_buf_dma);
ha->exchoffld_buf = NULL;
ha->exchoffld_size = 0;
}
}
/*
* qla2x00_free_fw_dump
* Frees fw dump stuff.
*
* Input:
* ha = adapter block pointer
*/
static void
qla2x00_free_fw_dump(struct qla_hw_data *ha)
{
struct fwdt *fwdt = ha->fwdt;
uint j;
if (ha->fce)
dma_free_coherent(&ha->pdev->dev,
FCE_SIZE, ha->fce, ha->fce_dma);
if (ha->eft)
dma_free_coherent(&ha->pdev->dev,
EFT_SIZE, ha->eft, ha->eft_dma);
vfree(ha->fw_dump);
ha->fce = NULL;
ha->fce_dma = 0;
ha->flags.fce_enabled = 0;
ha->eft = NULL;
ha->eft_dma = 0;
ha->fw_dumped = false;
ha->fw_dump_cap_flags = 0;
ha->fw_dump_reading = 0;
ha->fw_dump = NULL;
ha->fw_dump_len = 0;
for (j = 0; j < 2; j++, fwdt++) {
vfree(fwdt->template);
fwdt->template = NULL;
fwdt->length = 0;
}
}
/*
* qla2x00_mem_free
* Frees all adapter allocated memory.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla2x00_mem_free(struct qla_hw_data *ha)
{
qla2x00_free_fw_dump(ha);
if (ha->mctp_dump)
dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
ha->mctp_dump_dma);
ha->mctp_dump = NULL;
mempool_destroy(ha->srb_mempool);
ha->srb_mempool = NULL;
if (ha->dcbx_tlv)
dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
ha->dcbx_tlv, ha->dcbx_tlv_dma);
ha->dcbx_tlv = NULL;
if (ha->xgmac_data)
dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
ha->xgmac_data, ha->xgmac_data_dma);
ha->xgmac_data = NULL;
if (ha->sns_cmd)
dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
ha->sns_cmd, ha->sns_cmd_dma);
ha->sns_cmd = NULL;
ha->sns_cmd_dma = 0;
if (ha->ct_sns)
dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
ha->ct_sns, ha->ct_sns_dma);
ha->ct_sns = NULL;
ha->ct_sns_dma = 0;
if (ha->sfp_data)
dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE, ha->sfp_data,
ha->sfp_data_dma);
ha->sfp_data = NULL;
if (ha->flt)
dma_free_coherent(&ha->pdev->dev,
sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE,
ha->flt, ha->flt_dma);
ha->flt = NULL;
ha->flt_dma = 0;
if (ha->ms_iocb)
dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
ha->ms_iocb = NULL;
ha->ms_iocb_dma = 0;
if (ha->sf_init_cb)
dma_pool_free(ha->s_dma_pool,
ha->sf_init_cb, ha->sf_init_cb_dma);
if (ha->ex_init_cb)
dma_pool_free(ha->s_dma_pool,
ha->ex_init_cb, ha->ex_init_cb_dma);
ha->ex_init_cb = NULL;
ha->ex_init_cb_dma = 0;
if (ha->async_pd)
dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
ha->async_pd = NULL;
ha->async_pd_dma = 0;
dma_pool_destroy(ha->s_dma_pool);
ha->s_dma_pool = NULL;
if (ha->gid_list)
dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
ha->gid_list, ha->gid_list_dma);
ha->gid_list = NULL;
ha->gid_list_dma = 0;
if (!list_empty(&ha->base_qpair->dsd_list)) {
struct dsd_dma *dsd_ptr, *tdsd_ptr;
/* clean up allocated prev pool */
list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
&ha->base_qpair->dsd_list, list) {
dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
dsd_ptr->dsd_list_dma);
list_del(&dsd_ptr->list);
kfree(dsd_ptr);
}
}
dma_pool_destroy(ha->dl_dma_pool);
ha->dl_dma_pool = NULL;
dma_pool_destroy(ha->fcp_cmnd_dma_pool);
ha->fcp_cmnd_dma_pool = NULL;
mempool_destroy(ha->ctx_mempool);
ha->ctx_mempool = NULL;
if (ql2xenabledif && ha->dif_bundl_pool) {
struct dsd_dma *dsd, *nxt;
list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
list) {
list_del(&dsd->list);
dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
dsd->dsd_list_dma);
ha->dif_bundle_dma_allocs--;
kfree(dsd);
ha->dif_bundle_kallocs--;
ha->pool.unusable.count--;
}
list_for_each_entry_safe(dsd, nxt, &ha->pool.good.head, list) {
list_del(&dsd->list);
dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
dsd->dsd_list_dma);
ha->dif_bundle_dma_allocs--;
kfree(dsd);
ha->dif_bundle_kallocs--;
}
}
dma_pool_destroy(ha->dif_bundl_pool);
ha->dif_bundl_pool = NULL;
qlt_mem_free(ha);
qla_remove_hostmap(ha);
if (ha->init_cb)
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
ha->init_cb, ha->init_cb_dma);
dma_pool_destroy(ha->purex_dma_pool);
ha->purex_dma_pool = NULL;
if (ha->elsrej.c) {
dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
ha->elsrej.c, ha->elsrej.cdma);
ha->elsrej.c = NULL;
}
if (ha->lsrjt.c) {
dma_free_coherent(&ha->pdev->dev, ha->lsrjt.size, ha->lsrjt.c,
ha->lsrjt.cdma);
ha->lsrjt.c = NULL;
}
ha->init_cb = NULL;
ha->init_cb_dma = 0;
vfree(ha->optrom_buffer);
ha->optrom_buffer = NULL;
kfree(ha->nvram);
ha->nvram = NULL;
kfree(ha->npiv_info);
ha->npiv_info = NULL;
kfree(ha->swl);
ha->swl = NULL;
kfree(ha->loop_id_map);
ha->sf_init_cb = NULL;
ha->sf_init_cb_dma = 0;
ha->loop_id_map = NULL;
kfree(ha->vp_map);
ha->vp_map = NULL;
}
struct scsi_qla_host *qla2x00_create_host(const struct scsi_host_template *sht,
struct qla_hw_data *ha)
{
struct Scsi_Host *host;
struct scsi_qla_host *vha = NULL;
host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
if (!host) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
"Failed to allocate host from the scsi layer, aborting.\n");
return NULL;
}
/* Clear our data area */
vha = shost_priv(host);
memset(vha, 0, sizeof(scsi_qla_host_t));
vha->host = host;
vha->host_no = host->host_no;
vha->hw = ha;
vha->qlini_mode = ql2x_ini_mode;
vha->ql2xexchoffld = ql2xexchoffld;
vha->ql2xiniexchg = ql2xiniexchg;
INIT_LIST_HEAD(&vha->vp_fcports);
INIT_LIST_HEAD(&vha->work_list);
INIT_LIST_HEAD(&vha->list);
INIT_LIST_HEAD(&vha->qla_cmd_list);
INIT_LIST_HEAD(&vha->logo_list);
INIT_LIST_HEAD(&vha->plogi_ack_list);
INIT_LIST_HEAD(&vha->qp_list);
INIT_LIST_HEAD(&vha->gnl.fcports);
INIT_WORK(&vha->iocb_work, qla2x00_iocb_work_fn);
INIT_LIST_HEAD(&vha->purex_list.head);
spin_lock_init(&vha->purex_list.lock);
spin_lock_init(&vha->work_lock);
spin_lock_init(&vha->cmd_list_lock);
init_waitqueue_head(&vha->fcport_waitQ);
init_waitqueue_head(&vha->vref_waitq);
qla_enode_init(vha);
qla_edb_init(vha);
vha->gnl.size = sizeof(struct get_name_list_extended) *
(ha->max_loop_id + 1);
vha->gnl.l = dma_alloc_coherent(&ha->pdev->dev,
vha->gnl.size, &vha->gnl.ldma, GFP_KERNEL);
if (!vha->gnl.l) {
ql_log(ql_log_fatal, vha, 0xd04a,
"Alloc failed for name list.\n");
scsi_host_put(vha->host);
return NULL;
}
/* todo: what about ext login? */
vha->scan.size = ha->max_fibre_devices * sizeof(struct fab_scan_rp);
vha->scan.l = vmalloc(vha->scan.size);
if (!vha->scan.l) {
ql_log(ql_log_fatal, vha, 0xd04a,
"Alloc failed for scan database.\n");
dma_free_coherent(&ha->pdev->dev, vha->gnl.size,
vha->gnl.l, vha->gnl.ldma);
vha->gnl.l = NULL;
scsi_host_put(vha->host);
return NULL;
}
INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn);
snprintf(vha->host_str, sizeof(vha->host_str), "%s_%lu",
QLA2XXX_DRIVER_NAME, vha->host_no);
ql_dbg(ql_dbg_init, vha, 0x0041,
"Allocated the host=%p hw=%p vha=%p dev_name=%s",
vha->host, vha->hw, vha,
dev_name(&(ha->pdev->dev)));
return vha;
}
struct qla_work_evt *
qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
{
struct qla_work_evt *e;
if (test_bit(UNLOADING, &vha->dpc_flags))
return NULL;
if (qla_vha_mark_busy(vha))
return NULL;
e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
if (!e) {
QLA_VHA_MARK_NOT_BUSY(vha);
return NULL;
}
INIT_LIST_HEAD(&e->list);
e->type = type;
e->flags = QLA_EVT_FLAG_FREE;
return e;
}
int
qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
{
unsigned long flags;
bool q = false;
spin_lock_irqsave(&vha->work_lock, flags);
list_add_tail(&e->list, &vha->work_list);
if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
q = true;
spin_unlock_irqrestore(&vha->work_lock, flags);
if (q)
queue_work(vha->hw->wq, &vha->iocb_work);
return QLA_SUCCESS;
}
int
qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
u32 data)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.aen.code = code;
e->u.aen.data = data;
return qla2x00_post_work(vha, e);
}
int
qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
if (!e)
return QLA_FUNCTION_FAILED;
memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
return qla2x00_post_work(vha, e);
}
#define qla2x00_post_async_work(name, type) \
int qla2x00_post_async_##name##_work( \
struct scsi_qla_host *vha, \
fc_port_t *fcport, uint16_t *data) \
{ \
struct qla_work_evt *e; \
\
e = qla2x00_alloc_work(vha, type); \
if (!e) \
return QLA_FUNCTION_FAILED; \
\
e->u.logio.fcport = fcport; \
if (data) { \
e->u.logio.data[0] = data[0]; \
e->u.logio.data[1] = data[1]; \
} \
fcport->flags |= FCF_ASYNC_ACTIVE; \
return qla2x00_post_work(vha, e); \
}
qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
qla2x00_post_async_work(prlo, QLA_EVT_ASYNC_PRLO);
qla2x00_post_async_work(prlo_done, QLA_EVT_ASYNC_PRLO_DONE);
int
qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.uevent.code = code;
return qla2x00_post_work(vha, e);
}
static void
qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
{
char event_string[40];
char *envp[] = { event_string, NULL };
switch (code) {
case QLA_UEVENT_CODE_FW_DUMP:
snprintf(event_string, sizeof(event_string), "FW_DUMP=%lu",
vha->host_no);
break;
default:
/* do nothing */
break;
}
kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
}
int
qlafx00_post_aenfx_work(struct scsi_qla_host *vha, uint32_t evtcode,
uint32_t *data, int cnt)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.aenfx.evtcode = evtcode;
e->u.aenfx.count = cnt;
memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
return qla2x00_post_work(vha, e);
}
void qla24xx_sched_upd_fcport(fc_port_t *fcport)
{
unsigned long flags;
if (IS_SW_RESV_ADDR(fcport->d_id))
return;
spin_lock_irqsave(&fcport->vha->work_lock, flags);
if (fcport->disc_state == DSC_UPD_FCPORT) {
spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
return;
}
fcport->jiffies_at_registration = jiffies;
fcport->sec_since_registration = 0;
fcport->next_disc_state = DSC_DELETED;
qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
queue_work(system_unbound_wq, &fcport->reg_work);
}
static
void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
{
unsigned long flags;
fc_port_t *fcport = NULL, *tfcp;
struct qlt_plogi_ack_t *pla =
(struct qlt_plogi_ack_t *)e->u.new_sess.pla;
uint8_t free_fcport = 0;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d %8phC enter\n",
__func__, __LINE__, e->u.new_sess.port_name);
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
fcport = qla2x00_find_fcport_by_wwpn(vha, e->u.new_sess.port_name, 1);
if (fcport) {
fcport->d_id = e->u.new_sess.id;
if (pla) {
fcport->fw_login_state = DSC_LS_PLOGI_PEND;
memcpy(fcport->node_name,
pla->iocb.u.isp24.u.plogi.node_name,
WWN_SIZE);
qlt_plogi_ack_link(vha, pla, fcport, QLT_PLOGI_LINK_SAME_WWN);
/* we took an extra ref_count to prevent PLOGI ACK when
* fcport/sess has not been created.
*/
pla->ref_count--;
}
} else {
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (fcport) {
fcport->d_id = e->u.new_sess.id;
fcport->flags |= FCF_FABRIC_DEVICE;
fcport->fw_login_state = DSC_LS_PLOGI_PEND;
fcport->tgt_short_link_down_cnt = 0;
memcpy(fcport->port_name, e->u.new_sess.port_name,
WWN_SIZE);
fcport->fc4_type = e->u.new_sess.fc4_type;
if (NVME_PRIORITY(vha->hw, fcport))
fcport->do_prli_nvme = 1;
else
fcport->do_prli_nvme = 0;
if (e->u.new_sess.fc4_type & FS_FCP_IS_N2N) {
fcport->dm_login_expire = jiffies +
QLA_N2N_WAIT_TIME * HZ;
fcport->fc4_type = FS_FC4TYPE_FCP;
fcport->n2n_flag = 1;
if (vha->flags.nvme_enabled)
fcport->fc4_type |= FS_FC4TYPE_NVME;
}
} else {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC mem alloc fail.\n",
__func__, e->u.new_sess.port_name);
if (pla) {
list_del(&pla->list);
kmem_cache_free(qla_tgt_plogi_cachep, pla);
}
return;
}
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
/* search again to make sure no one else got ahead */
tfcp = qla2x00_find_fcport_by_wwpn(vha,
e->u.new_sess.port_name, 1);
if (tfcp) {
/* should rarily happen */
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC found existing fcport b4 add. DS %d LS %d\n",
__func__, tfcp->port_name, tfcp->disc_state,
tfcp->fw_login_state);
free_fcport = 1;
} else {
list_add_tail(&fcport->list, &vha->vp_fcports);
}
if (pla) {
qlt_plogi_ack_link(vha, pla, fcport,
QLT_PLOGI_LINK_SAME_WWN);
pla->ref_count--;
}
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
if (fcport) {
fcport->id_changed = 1;
fcport->scan_state = QLA_FCPORT_FOUND;
fcport->chip_reset = vha->hw->base_qpair->chip_reset;
memcpy(fcport->node_name, e->u.new_sess.node_name, WWN_SIZE);
if (pla) {
if (pla->iocb.u.isp24.status_subcode == ELS_PRLI) {
u16 wd3_lo;
fcport->fw_login_state = DSC_LS_PRLI_PEND;
fcport->local = 0;
fcport->loop_id =
le16_to_cpu(
pla->iocb.u.isp24.nport_handle);
fcport->fw_login_state = DSC_LS_PRLI_PEND;
wd3_lo =
le16_to_cpu(
pla->iocb.u.isp24.u.prli.wd3_lo);
if (wd3_lo & BIT_7)
fcport->conf_compl_supported = 1;
if ((wd3_lo & BIT_4) == 0)
fcport->port_type = FCT_INITIATOR;
else
fcport->port_type = FCT_TARGET;
}
qlt_plogi_ack_unref(vha, pla);
} else {
fc_port_t *dfcp = NULL;
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
tfcp = qla2x00_find_fcport_by_nportid(vha,
&e->u.new_sess.id, 1);
if (tfcp && (tfcp != fcport)) {
/*
* We have a conflict fcport with same NportID.
*/
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC found conflict b4 add. DS %d LS %d\n",
__func__, tfcp->port_name, tfcp->disc_state,
tfcp->fw_login_state);
switch (tfcp->disc_state) {
case DSC_DELETED:
break;
case DSC_DELETE_PEND:
fcport->login_pause = 1;
tfcp->conflict = fcport;
break;
default:
fcport->login_pause = 1;
tfcp->conflict = fcport;
dfcp = tfcp;
break;
}
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
if (dfcp)
qlt_schedule_sess_for_deletion(tfcp);
if (N2N_TOPO(vha->hw)) {
fcport->flags &= ~FCF_FABRIC_DEVICE;
fcport->keep_nport_handle = 1;
if (vha->flags.nvme_enabled) {
fcport->fc4_type =
(FS_FC4TYPE_NVME | FS_FC4TYPE_FCP);
fcport->n2n_flag = 1;
}
fcport->fw_login_state = 0;
schedule_delayed_work(&vha->scan.scan_work, 5);
} else {
qla24xx_fcport_handle_login(vha, fcport);
}
}
}
if (free_fcport) {
qla2x00_free_fcport(fcport);
if (pla) {
list_del(&pla->list);
kmem_cache_free(qla_tgt_plogi_cachep, pla);
}
}
}
static void qla_sp_retry(struct scsi_qla_host *vha, struct qla_work_evt *e)
{
struct srb *sp = e->u.iosb.sp;
int rval;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_disc, vha, 0x2043,
"%s: %s: Re-issue IOCB failed (%d).\n",
__func__, sp->name, rval);
qla24xx_sp_unmap(vha, sp);
}
}
void
qla2x00_do_work(struct scsi_qla_host *vha)
{
struct qla_work_evt *e, *tmp;
unsigned long flags;
LIST_HEAD(work);
int rc;
spin_lock_irqsave(&vha->work_lock, flags);
list_splice_init(&vha->work_list, &work);
spin_unlock_irqrestore(&vha->work_lock, flags);
list_for_each_entry_safe(e, tmp, &work, list) {
rc = QLA_SUCCESS;
switch (e->type) {
case QLA_EVT_AEN:
fc_host_post_event(vha->host, fc_get_event_number(),
e->u.aen.code, e->u.aen.data);
break;
case QLA_EVT_IDC_ACK:
qla81xx_idc_ack(vha, e->u.idc_ack.mb);
break;
case QLA_EVT_ASYNC_LOGIN:
qla2x00_async_login(vha, e->u.logio.fcport,
e->u.logio.data);
break;
case QLA_EVT_ASYNC_LOGOUT:
rc = qla2x00_async_logout(vha, e->u.logio.fcport);
break;
case QLA_EVT_ASYNC_ADISC:
qla2x00_async_adisc(vha, e->u.logio.fcport,
e->u.logio.data);
break;
case QLA_EVT_UEVENT:
qla2x00_uevent_emit(vha, e->u.uevent.code);
break;
case QLA_EVT_AENFX:
qlafx00_process_aen(vha, e);
break;
case QLA_EVT_UNMAP:
qla24xx_sp_unmap(vha, e->u.iosb.sp);
break;
case QLA_EVT_RELOGIN:
qla2x00_relogin(vha);
break;
case QLA_EVT_NEW_SESS:
qla24xx_create_new_sess(vha, e);
break;
case QLA_EVT_GPDB:
qla24xx_async_gpdb(vha, e->u.fcport.fcport,
e->u.fcport.opt);
break;
case QLA_EVT_PRLI:
qla24xx_async_prli(vha, e->u.fcport.fcport);
break;
case QLA_EVT_GPSC:
qla24xx_async_gpsc(vha, e->u.fcport.fcport);
break;
case QLA_EVT_GNL:
qla24xx_async_gnl(vha, e->u.fcport.fcport);
break;
case QLA_EVT_NACK:
qla24xx_do_nack_work(vha, e);
break;
case QLA_EVT_ASYNC_PRLO:
rc = qla2x00_async_prlo(vha, e->u.logio.fcport);
break;
case QLA_EVT_ASYNC_PRLO_DONE:
qla2x00_async_prlo_done(vha, e->u.logio.fcport,
e->u.logio.data);
break;
case QLA_EVT_GPNFT:
qla24xx_async_gpnft(vha, e->u.gpnft.fc4_type,
e->u.gpnft.sp);
break;
case QLA_EVT_GPNFT_DONE:
qla24xx_async_gpnft_done(vha, e->u.iosb.sp);
break;
case QLA_EVT_GNNFT_DONE:
qla24xx_async_gnnft_done(vha, e->u.iosb.sp);
break;
case QLA_EVT_GFPNID:
qla24xx_async_gfpnid(vha, e->u.fcport.fcport);
break;
case QLA_EVT_SP_RETRY:
qla_sp_retry(vha, e);
break;
case QLA_EVT_IIDMA:
qla_do_iidma_work(vha, e->u.fcport.fcport);
break;
case QLA_EVT_ELS_PLOGI:
qla24xx_els_dcmd2_iocb(vha, ELS_DCMD_PLOGI,
e->u.fcport.fcport, false);
break;
case QLA_EVT_SA_REPLACE:
rc = qla24xx_issue_sa_replace_iocb(vha, e);
break;
}
if (rc == EAGAIN) {
/* put 'work' at head of 'vha->work_list' */
spin_lock_irqsave(&vha->work_lock, flags);
list_splice(&work, &vha->work_list);
spin_unlock_irqrestore(&vha->work_lock, flags);
break;
}
list_del_init(&e->list);
if (e->flags & QLA_EVT_FLAG_FREE)
kfree(e);
/* For each work completed decrement vha ref count */
QLA_VHA_MARK_NOT_BUSY(vha);
}
}
int qla24xx_post_relogin_work(struct scsi_qla_host *vha)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_RELOGIN);
if (!e) {
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
return QLA_FUNCTION_FAILED;
}
return qla2x00_post_work(vha, e);
}
/* Relogins all the fcports of a vport
* Context: dpc thread
*/
void qla2x00_relogin(struct scsi_qla_host *vha)
{
fc_port_t *fcport;
int status, relogin_needed = 0;
struct event_arg ea;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
/*
* If the port is not ONLINE then try to login
* to it if we haven't run out of retries.
*/
if (atomic_read(&fcport->state) != FCS_ONLINE &&
fcport->login_retry) {
if (fcport->scan_state != QLA_FCPORT_FOUND ||
fcport->disc_state == DSC_LOGIN_AUTH_PEND ||
fcport->disc_state == DSC_LOGIN_COMPLETE)
continue;
if (fcport->flags & (FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE) ||
fcport->disc_state == DSC_DELETE_PEND) {
relogin_needed = 1;
} else {
if (vha->hw->current_topology != ISP_CFG_NL) {
memset(&ea, 0, sizeof(ea));
ea.fcport = fcport;
qla24xx_handle_relogin_event(vha, &ea);
} else if (vha->hw->current_topology ==
ISP_CFG_NL &&
IS_QLA2XXX_MIDTYPE(vha->hw)) {
(void)qla24xx_fcport_handle_login(vha,
fcport);
} else if (vha->hw->current_topology ==
ISP_CFG_NL) {
fcport->login_retry--;
status =
qla2x00_local_device_login(vha,
fcport);
if (status == QLA_SUCCESS) {
fcport->old_loop_id =
fcport->loop_id;
ql_dbg(ql_dbg_disc, vha, 0x2003,
"Port login OK: logged in ID 0x%x.\n",
fcport->loop_id);
qla2x00_update_fcport
(vha, fcport);
} else if (status == 1) {
set_bit(RELOGIN_NEEDED,
&vha->dpc_flags);
/* retry the login again */
ql_dbg(ql_dbg_disc, vha, 0x2007,
"Retrying %d login again loop_id 0x%x.\n",
fcport->login_retry,
fcport->loop_id);
} else {
fcport->login_retry = 0;
}
if (fcport->login_retry == 0 &&
status != QLA_SUCCESS)
qla2x00_clear_loop_id(fcport);
}
}
}
if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
break;
}
if (relogin_needed)
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
ql_dbg(ql_dbg_disc, vha, 0x400e,
"Relogin end.\n");
}
/* Schedule work on any of the dpc-workqueues */
void
qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
{
struct qla_hw_data *ha = base_vha->hw;
switch (work_code) {
case MBA_IDC_AEN: /* 0x8200 */
if (ha->dpc_lp_wq)
queue_work(ha->dpc_lp_wq, &ha->idc_aen);
break;
case QLA83XX_NIC_CORE_RESET: /* 0x1 */
if (!ha->flags.nic_core_reset_hdlr_active) {
if (ha->dpc_hp_wq)
queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
} else
ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
"NIC Core reset is already active. Skip "
"scheduling it again.\n");
break;
case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
if (ha->dpc_hp_wq)
queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
break;
case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
if (ha->dpc_hp_wq)
queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
break;
default:
ql_log(ql_log_warn, base_vha, 0xb05f,
"Unknown work-code=0x%x.\n", work_code);
}
return;
}
/* Work: Perform NIC Core Unrecoverable state handling */
void
qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
{
struct qla_hw_data *ha =
container_of(work, struct qla_hw_data, nic_core_unrecoverable);
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
uint32_t dev_state = 0;
qla83xx_idc_lock(base_vha, 0);
qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
qla83xx_reset_ownership(base_vha);
if (ha->flags.nic_core_reset_owner) {
ha->flags.nic_core_reset_owner = 0;
qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
QLA8XXX_DEV_FAILED);
ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
}
qla83xx_idc_unlock(base_vha, 0);
}
/* Work: Execute IDC state handler */
void
qla83xx_idc_state_handler_work(struct work_struct *work)
{
struct qla_hw_data *ha =
container_of(work, struct qla_hw_data, idc_state_handler);
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
uint32_t dev_state = 0;
qla83xx_idc_lock(base_vha, 0);
qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
if (dev_state == QLA8XXX_DEV_FAILED ||
dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
qla83xx_idc_state_handler(base_vha);
qla83xx_idc_unlock(base_vha, 0);
}
static int
qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
{
int rval = QLA_SUCCESS;
unsigned long heart_beat_wait = jiffies + (1 * HZ);
uint32_t heart_beat_counter1, heart_beat_counter2;
do {
if (time_after(jiffies, heart_beat_wait)) {
ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
"Nic Core f/w is not alive.\n");
rval = QLA_FUNCTION_FAILED;
break;
}
qla83xx_idc_lock(base_vha, 0);
qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
&heart_beat_counter1);
qla83xx_idc_unlock(base_vha, 0);
msleep(100);
qla83xx_idc_lock(base_vha, 0);
qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
&heart_beat_counter2);
qla83xx_idc_unlock(base_vha, 0);
} while (heart_beat_counter1 == heart_beat_counter2);
return rval;
}
/* Work: Perform NIC Core Reset handling */
void
qla83xx_nic_core_reset_work(struct work_struct *work)
{
struct qla_hw_data *ha =
container_of(work, struct qla_hw_data, nic_core_reset);
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
uint32_t dev_state = 0;
if (IS_QLA2031(ha)) {
if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
ql_log(ql_log_warn, base_vha, 0xb081,
"Failed to dump mctp\n");
return;
}
if (!ha->flags.nic_core_reset_hdlr_active) {
if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
qla83xx_idc_lock(base_vha, 0);
qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
&dev_state);
qla83xx_idc_unlock(base_vha, 0);
if (dev_state != QLA8XXX_DEV_NEED_RESET) {
ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
"Nic Core f/w is alive.\n");
return;
}
}
ha->flags.nic_core_reset_hdlr_active = 1;
if (qla83xx_nic_core_reset(base_vha)) {
/* NIC Core reset failed. */
ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
"NIC Core reset failed.\n");
}
ha->flags.nic_core_reset_hdlr_active = 0;
}
}
/* Work: Handle 8200 IDC aens */
void
qla83xx_service_idc_aen(struct work_struct *work)
{
struct qla_hw_data *ha =
container_of(work, struct qla_hw_data, idc_aen);
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
uint32_t dev_state, idc_control;
qla83xx_idc_lock(base_vha, 0);
qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
qla83xx_idc_unlock(base_vha, 0);
if (dev_state == QLA8XXX_DEV_NEED_RESET) {
if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
"Application requested NIC Core Reset.\n");
qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
QLA_SUCCESS) {
ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
"Other protocol driver requested NIC Core Reset.\n");
qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
}
} else if (dev_state == QLA8XXX_DEV_FAILED ||
dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
}
}
/*
* Control the frequency of IDC lock retries
*/
#define QLA83XX_WAIT_LOGIC_MS 100
static int
qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
{
int rval;
uint32_t data;
uint32_t idc_lck_rcvry_stage_mask = 0x3;
uint32_t idc_lck_rcvry_owner_mask = 0x3c;
struct qla_hw_data *ha = base_vha->hw;
ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
"Trying force recovery of the IDC lock.\n");
rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
if (rval)
return rval;
if ((data & idc_lck_rcvry_stage_mask) > 0) {
return QLA_SUCCESS;
} else {
data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
data);
if (rval)
return rval;
msleep(200);
rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
&data);
if (rval)
return rval;
if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
data &= (IDC_LOCK_RECOVERY_STAGE2 |
~(idc_lck_rcvry_stage_mask));
rval = qla83xx_wr_reg(base_vha,
QLA83XX_IDC_LOCK_RECOVERY, data);
if (rval)
return rval;
/* Forcefully perform IDC UnLock */
rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
&data);
if (rval)
return rval;
/* Clear lock-id by setting 0xff */
rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
0xff);
if (rval)
return rval;
/* Clear lock-recovery by setting 0x0 */
rval = qla83xx_wr_reg(base_vha,
QLA83XX_IDC_LOCK_RECOVERY, 0x0);
if (rval)
return rval;
} else
return QLA_SUCCESS;
}
return rval;
}
static int
qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
{
int rval = QLA_SUCCESS;
uint32_t o_drv_lockid, n_drv_lockid;
unsigned long lock_recovery_timeout;
lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
retry_lockid:
rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
if (rval)
goto exit;
/* MAX wait time before forcing IDC Lock recovery = 2 secs */
if (time_after_eq(jiffies, lock_recovery_timeout)) {
if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
return QLA_SUCCESS;
else
return QLA_FUNCTION_FAILED;
}
rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
if (rval)
goto exit;
if (o_drv_lockid == n_drv_lockid) {
msleep(QLA83XX_WAIT_LOGIC_MS);
goto retry_lockid;
} else
return QLA_SUCCESS;
exit:
return rval;
}
/*
* Context: task, can sleep
*/
void
qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
{
uint32_t data;
uint32_t lock_owner;
struct qla_hw_data *ha = base_vha->hw;
might_sleep();
/* IDC-lock implementation using driver-lock/lock-id remote registers */
retry_lock:
if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
== QLA_SUCCESS) {
if (data) {
/* Setting lock-id to our function-number */
qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
ha->portnum);
} else {
qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
&lock_owner);
ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
"Failed to acquire IDC lock, acquired by %d, "
"retrying...\n", lock_owner);
/* Retry/Perform IDC-Lock recovery */
if (qla83xx_idc_lock_recovery(base_vha)
== QLA_SUCCESS) {
msleep(QLA83XX_WAIT_LOGIC_MS);
goto retry_lock;
} else
ql_log(ql_log_warn, base_vha, 0xb075,
"IDC Lock recovery FAILED.\n");
}
}
return;
}
static bool
qla25xx_rdp_rsp_reduce_size(struct scsi_qla_host *vha,
struct purex_entry_24xx *purex)
{
char fwstr[16];
u32 sid = purex->s_id[2] << 16 | purex->s_id[1] << 8 | purex->s_id[0];
struct port_database_24xx *pdb;
/* Domain Controller is always logged-out. */
/* if RDP request is not from Domain Controller: */
if (sid != 0xfffc01)
return false;
ql_dbg(ql_dbg_init, vha, 0x0181, "%s: s_id=%#x\n", __func__, sid);
pdb = kzalloc(sizeof(*pdb), GFP_KERNEL);
if (!pdb) {
ql_dbg(ql_dbg_init, vha, 0x0181,
"%s: Failed allocate pdb\n", __func__);
} else if (qla24xx_get_port_database(vha,
le16_to_cpu(purex->nport_handle), pdb)) {
ql_dbg(ql_dbg_init, vha, 0x0181,
"%s: Failed get pdb sid=%x\n", __func__, sid);
} else if (pdb->current_login_state != PDS_PLOGI_COMPLETE &&
pdb->current_login_state != PDS_PRLI_COMPLETE) {
ql_dbg(ql_dbg_init, vha, 0x0181,
"%s: Port not logged in sid=%#x\n", __func__, sid);
} else {
/* RDP request is from logged in port */
kfree(pdb);
return false;
}
kfree(pdb);
vha->hw->isp_ops->fw_version_str(vha, fwstr, sizeof(fwstr));
fwstr[strcspn(fwstr, " ")] = 0;
/* if FW version allows RDP response length upto 2048 bytes: */
if (strcmp(fwstr, "8.09.00") > 0 || strcmp(fwstr, "8.05.65") == 0)
return false;
ql_dbg(ql_dbg_init, vha, 0x0181, "%s: fw=%s\n", __func__, fwstr);
/* RDP response length is to be reduced to maximum 256 bytes */
return true;
}
/*
* Function Name: qla24xx_process_purex_iocb
*
* Description:
* Prepare a RDP response and send to Fabric switch
*
* PARAMETERS:
* vha: SCSI qla host
* purex: RDP request received by HBA
*/
void qla24xx_process_purex_rdp(struct scsi_qla_host *vha,
struct purex_item *item)
{
struct qla_hw_data *ha = vha->hw;
struct purex_entry_24xx *purex =
(struct purex_entry_24xx *)&item->iocb;
dma_addr_t rsp_els_dma;
dma_addr_t rsp_payload_dma;
dma_addr_t stat_dma;
dma_addr_t sfp_dma;
struct els_entry_24xx *rsp_els = NULL;
struct rdp_rsp_payload *rsp_payload = NULL;
struct link_statistics *stat = NULL;
uint8_t *sfp = NULL;
uint16_t sfp_flags = 0;
uint rsp_payload_length = sizeof(*rsp_payload);
int rval;
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0180,
"%s: Enter\n", __func__);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0181,
"-------- ELS REQ -------\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0182,
purex, sizeof(*purex));
if (qla25xx_rdp_rsp_reduce_size(vha, purex)) {
rsp_payload_length =
offsetof(typeof(*rsp_payload), optical_elmt_desc);
ql_dbg(ql_dbg_init, vha, 0x0181,
"Reducing RSP payload length to %u bytes...\n",
rsp_payload_length);
}
rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els),
&rsp_els_dma, GFP_KERNEL);
if (!rsp_els) {
ql_log(ql_log_warn, vha, 0x0183,
"Failed allocate dma buffer ELS RSP.\n");
goto dealloc;
}
rsp_payload = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
&rsp_payload_dma, GFP_KERNEL);
if (!rsp_payload) {
ql_log(ql_log_warn, vha, 0x0184,
"Failed allocate dma buffer ELS RSP payload.\n");
goto dealloc;
}
sfp = dma_alloc_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
&sfp_dma, GFP_KERNEL);
stat = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stat),
&stat_dma, GFP_KERNEL);
/* Prepare Response IOCB */
rsp_els->entry_type = ELS_IOCB_TYPE;
rsp_els->entry_count = 1;
rsp_els->sys_define = 0;
rsp_els->entry_status = 0;
rsp_els->handle = 0;
rsp_els->nport_handle = purex->nport_handle;
rsp_els->tx_dsd_count = cpu_to_le16(1);
rsp_els->vp_index = purex->vp_idx;
rsp_els->sof_type = EST_SOFI3;
rsp_els->rx_xchg_address = purex->rx_xchg_addr;
rsp_els->rx_dsd_count = 0;
rsp_els->opcode = purex->els_frame_payload[0];
rsp_els->d_id[0] = purex->s_id[0];
rsp_els->d_id[1] = purex->s_id[1];
rsp_els->d_id[2] = purex->s_id[2];
rsp_els->control_flags = cpu_to_le16(EPD_ELS_ACC);
rsp_els->rx_byte_count = 0;
rsp_els->tx_byte_count = cpu_to_le32(rsp_payload_length);
put_unaligned_le64(rsp_payload_dma, &rsp_els->tx_address);
rsp_els->tx_len = rsp_els->tx_byte_count;
rsp_els->rx_address = 0;
rsp_els->rx_len = 0;
/* Prepare Response Payload */
rsp_payload->hdr.cmd = cpu_to_be32(0x2 << 24); /* LS_ACC */
rsp_payload->hdr.len = cpu_to_be32(le32_to_cpu(rsp_els->tx_byte_count) -
sizeof(rsp_payload->hdr));
/* Link service Request Info Descriptor */
rsp_payload->ls_req_info_desc.desc_tag = cpu_to_be32(0x1);
rsp_payload->ls_req_info_desc.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc));
rsp_payload->ls_req_info_desc.req_payload_word_0 =
cpu_to_be32p((uint32_t *)purex->els_frame_payload);
/* Link service Request Info Descriptor 2 */
rsp_payload->ls_req_info_desc2.desc_tag = cpu_to_be32(0x1);
rsp_payload->ls_req_info_desc2.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc2));
rsp_payload->ls_req_info_desc2.req_payload_word_0 =
cpu_to_be32p((uint32_t *)purex->els_frame_payload);
rsp_payload->sfp_diag_desc.desc_tag = cpu_to_be32(0x10000);
rsp_payload->sfp_diag_desc.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->sfp_diag_desc));
if (sfp) {
/* SFP Flags */
memset(sfp, 0, SFP_RTDI_LEN);
rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x7, 2, 0);
if (!rval) {
/* SFP Flags bits 3-0: Port Tx Laser Type */
if (sfp[0] & BIT_2 || sfp[1] & (BIT_6|BIT_5))
sfp_flags |= BIT_0; /* short wave */
else if (sfp[0] & BIT_1)
sfp_flags |= BIT_1; /* long wave 1310nm */
else if (sfp[1] & BIT_4)
sfp_flags |= BIT_1|BIT_0; /* long wave 1550nm */
}
/* SFP Type */
memset(sfp, 0, SFP_RTDI_LEN);
rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x0, 1, 0);
if (!rval) {
sfp_flags |= BIT_4; /* optical */
if (sfp[0] == 0x3)
sfp_flags |= BIT_6; /* sfp+ */
}
rsp_payload->sfp_diag_desc.sfp_flags = cpu_to_be16(sfp_flags);
/* SFP Diagnostics */
memset(sfp, 0, SFP_RTDI_LEN);
rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0x60, 10, 0);
if (!rval) {
__be16 *trx = (__force __be16 *)sfp; /* already be16 */
rsp_payload->sfp_diag_desc.temperature = trx[0];
rsp_payload->sfp_diag_desc.vcc = trx[1];
rsp_payload->sfp_diag_desc.tx_bias = trx[2];
rsp_payload->sfp_diag_desc.tx_power = trx[3];
rsp_payload->sfp_diag_desc.rx_power = trx[4];
}
}
/* Port Speed Descriptor */
rsp_payload->port_speed_desc.desc_tag = cpu_to_be32(0x10001);
rsp_payload->port_speed_desc.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_speed_desc));
rsp_payload->port_speed_desc.speed_capab = cpu_to_be16(
qla25xx_fdmi_port_speed_capability(ha));
rsp_payload->port_speed_desc.operating_speed = cpu_to_be16(
qla25xx_fdmi_port_speed_currently(ha));
/* Link Error Status Descriptor */
rsp_payload->ls_err_desc.desc_tag = cpu_to_be32(0x10002);
rsp_payload->ls_err_desc.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_err_desc));
if (stat) {
rval = qla24xx_get_isp_stats(vha, stat, stat_dma, 0);
if (!rval) {
rsp_payload->ls_err_desc.link_fail_cnt =
cpu_to_be32(le32_to_cpu(stat->link_fail_cnt));
rsp_payload->ls_err_desc.loss_sync_cnt =
cpu_to_be32(le32_to_cpu(stat->loss_sync_cnt));
rsp_payload->ls_err_desc.loss_sig_cnt =
cpu_to_be32(le32_to_cpu(stat->loss_sig_cnt));
rsp_payload->ls_err_desc.prim_seq_err_cnt =
cpu_to_be32(le32_to_cpu(stat->prim_seq_err_cnt));
rsp_payload->ls_err_desc.inval_xmit_word_cnt =
cpu_to_be32(le32_to_cpu(stat->inval_xmit_word_cnt));
rsp_payload->ls_err_desc.inval_crc_cnt =
cpu_to_be32(le32_to_cpu(stat->inval_crc_cnt));
rsp_payload->ls_err_desc.pn_port_phy_type |= BIT_6;
}
}
/* Portname Descriptor */
rsp_payload->port_name_diag_desc.desc_tag = cpu_to_be32(0x10003);
rsp_payload->port_name_diag_desc.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_diag_desc));
memcpy(rsp_payload->port_name_diag_desc.WWNN,
vha->node_name,
sizeof(rsp_payload->port_name_diag_desc.WWNN));
memcpy(rsp_payload->port_name_diag_desc.WWPN,
vha->port_name,
sizeof(rsp_payload->port_name_diag_desc.WWPN));
/* F-Port Portname Descriptor */
rsp_payload->port_name_direct_desc.desc_tag = cpu_to_be32(0x10003);
rsp_payload->port_name_direct_desc.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_direct_desc));
memcpy(rsp_payload->port_name_direct_desc.WWNN,
vha->fabric_node_name,
sizeof(rsp_payload->port_name_direct_desc.WWNN));
memcpy(rsp_payload->port_name_direct_desc.WWPN,
vha->fabric_port_name,
sizeof(rsp_payload->port_name_direct_desc.WWPN));
/* Bufer Credit Descriptor */
rsp_payload->buffer_credit_desc.desc_tag = cpu_to_be32(0x10006);
rsp_payload->buffer_credit_desc.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->buffer_credit_desc));
rsp_payload->buffer_credit_desc.fcport_b2b = 0;
rsp_payload->buffer_credit_desc.attached_fcport_b2b = cpu_to_be32(0);
rsp_payload->buffer_credit_desc.fcport_rtt = cpu_to_be32(0);
if (ha->flags.plogi_template_valid) {
uint32_t tmp =
be16_to_cpu(ha->plogi_els_payld.fl_csp.sp_bb_cred);
rsp_payload->buffer_credit_desc.fcport_b2b = cpu_to_be32(tmp);
}
if (rsp_payload_length < sizeof(*rsp_payload))
goto send;
/* Optical Element Descriptor, Temperature */
rsp_payload->optical_elmt_desc[0].desc_tag = cpu_to_be32(0x10007);
rsp_payload->optical_elmt_desc[0].desc_len =
cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
/* Optical Element Descriptor, Voltage */
rsp_payload->optical_elmt_desc[1].desc_tag = cpu_to_be32(0x10007);
rsp_payload->optical_elmt_desc[1].desc_len =
cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
/* Optical Element Descriptor, Tx Bias Current */
rsp_payload->optical_elmt_desc[2].desc_tag = cpu_to_be32(0x10007);
rsp_payload->optical_elmt_desc[2].desc_len =
cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
/* Optical Element Descriptor, Tx Power */
rsp_payload->optical_elmt_desc[3].desc_tag = cpu_to_be32(0x10007);
rsp_payload->optical_elmt_desc[3].desc_len =
cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
/* Optical Element Descriptor, Rx Power */
rsp_payload->optical_elmt_desc[4].desc_tag = cpu_to_be32(0x10007);
rsp_payload->optical_elmt_desc[4].desc_len =
cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
if (sfp) {
memset(sfp, 0, SFP_RTDI_LEN);
rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0, 64, 0);
if (!rval) {
__be16 *trx = (__force __be16 *)sfp; /* already be16 */
/* Optical Element Descriptor, Temperature */
rsp_payload->optical_elmt_desc[0].high_alarm = trx[0];
rsp_payload->optical_elmt_desc[0].low_alarm = trx[1];
rsp_payload->optical_elmt_desc[0].high_warn = trx[2];
rsp_payload->optical_elmt_desc[0].low_warn = trx[3];
rsp_payload->optical_elmt_desc[0].element_flags =
cpu_to_be32(1 << 28);
/* Optical Element Descriptor, Voltage */
rsp_payload->optical_elmt_desc[1].high_alarm = trx[4];
rsp_payload->optical_elmt_desc[1].low_alarm = trx[5];
rsp_payload->optical_elmt_desc[1].high_warn = trx[6];
rsp_payload->optical_elmt_desc[1].low_warn = trx[7];
rsp_payload->optical_elmt_desc[1].element_flags =
cpu_to_be32(2 << 28);
/* Optical Element Descriptor, Tx Bias Current */
rsp_payload->optical_elmt_desc[2].high_alarm = trx[8];
rsp_payload->optical_elmt_desc[2].low_alarm = trx[9];
rsp_payload->optical_elmt_desc[2].high_warn = trx[10];
rsp_payload->optical_elmt_desc[2].low_warn = trx[11];
rsp_payload->optical_elmt_desc[2].element_flags =
cpu_to_be32(3 << 28);
/* Optical Element Descriptor, Tx Power */
rsp_payload->optical_elmt_desc[3].high_alarm = trx[12];
rsp_payload->optical_elmt_desc[3].low_alarm = trx[13];
rsp_payload->optical_elmt_desc[3].high_warn = trx[14];
rsp_payload->optical_elmt_desc[3].low_warn = trx[15];
rsp_payload->optical_elmt_desc[3].element_flags =
cpu_to_be32(4 << 28);
/* Optical Element Descriptor, Rx Power */
rsp_payload->optical_elmt_desc[4].high_alarm = trx[16];
rsp_payload->optical_elmt_desc[4].low_alarm = trx[17];
rsp_payload->optical_elmt_desc[4].high_warn = trx[18];
rsp_payload->optical_elmt_desc[4].low_warn = trx[19];
rsp_payload->optical_elmt_desc[4].element_flags =
cpu_to_be32(5 << 28);
}
memset(sfp, 0, SFP_RTDI_LEN);
rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 112, 64, 0);
if (!rval) {
/* Temperature high/low alarm/warning */
rsp_payload->optical_elmt_desc[0].element_flags |=
cpu_to_be32(
(sfp[0] >> 7 & 1) << 3 |
(sfp[0] >> 6 & 1) << 2 |
(sfp[4] >> 7 & 1) << 1 |
(sfp[4] >> 6 & 1) << 0);
/* Voltage high/low alarm/warning */
rsp_payload->optical_elmt_desc[1].element_flags |=
cpu_to_be32(
(sfp[0] >> 5 & 1) << 3 |
(sfp[0] >> 4 & 1) << 2 |
(sfp[4] >> 5 & 1) << 1 |
(sfp[4] >> 4 & 1) << 0);
/* Tx Bias Current high/low alarm/warning */
rsp_payload->optical_elmt_desc[2].element_flags |=
cpu_to_be32(
(sfp[0] >> 3 & 1) << 3 |
(sfp[0] >> 2 & 1) << 2 |
(sfp[4] >> 3 & 1) << 1 |
(sfp[4] >> 2 & 1) << 0);
/* Tx Power high/low alarm/warning */
rsp_payload->optical_elmt_desc[3].element_flags |=
cpu_to_be32(
(sfp[0] >> 1 & 1) << 3 |
(sfp[0] >> 0 & 1) << 2 |
(sfp[4] >> 1 & 1) << 1 |
(sfp[4] >> 0 & 1) << 0);
/* Rx Power high/low alarm/warning */
rsp_payload->optical_elmt_desc[4].element_flags |=
cpu_to_be32(
(sfp[1] >> 7 & 1) << 3 |
(sfp[1] >> 6 & 1) << 2 |
(sfp[5] >> 7 & 1) << 1 |
(sfp[5] >> 6 & 1) << 0);
}
}
/* Optical Product Data Descriptor */
rsp_payload->optical_prod_desc.desc_tag = cpu_to_be32(0x10008);
rsp_payload->optical_prod_desc.desc_len =
cpu_to_be32(RDP_DESC_LEN(rsp_payload->optical_prod_desc));
if (sfp) {
memset(sfp, 0, SFP_RTDI_LEN);
rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 20, 64, 0);
if (!rval) {
memcpy(rsp_payload->optical_prod_desc.vendor_name,
sfp + 0,
sizeof(rsp_payload->optical_prod_desc.vendor_name));
memcpy(rsp_payload->optical_prod_desc.part_number,
sfp + 20,
sizeof(rsp_payload->optical_prod_desc.part_number));
memcpy(rsp_payload->optical_prod_desc.revision,
sfp + 36,
sizeof(rsp_payload->optical_prod_desc.revision));
memcpy(rsp_payload->optical_prod_desc.serial_number,
sfp + 48,
sizeof(rsp_payload->optical_prod_desc.serial_number));
}
memset(sfp, 0, SFP_RTDI_LEN);
rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 84, 8, 0);
if (!rval) {
memcpy(rsp_payload->optical_prod_desc.date,
sfp + 0,
sizeof(rsp_payload->optical_prod_desc.date));
}
}
send:
ql_dbg(ql_dbg_init, vha, 0x0183,
"Sending ELS Response to RDP Request...\n");
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0184,
"-------- ELS RSP -------\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0185,
rsp_els, sizeof(*rsp_els));
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0186,
"-------- ELS RSP PAYLOAD -------\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0187,
rsp_payload, rsp_payload_length);
rval = qla2x00_issue_iocb(vha, rsp_els, rsp_els_dma, 0);
if (rval) {
ql_log(ql_log_warn, vha, 0x0188,
"%s: iocb failed to execute -> %x\n", __func__, rval);
} else if (rsp_els->comp_status) {
ql_log(ql_log_warn, vha, 0x0189,
"%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
__func__, rsp_els->comp_status,
rsp_els->error_subcode_1, rsp_els->error_subcode_2);
} else {
ql_dbg(ql_dbg_init, vha, 0x018a, "%s: done.\n", __func__);
}
dealloc:
if (stat)
dma_free_coherent(&ha->pdev->dev, sizeof(*stat),
stat, stat_dma);
if (sfp)
dma_free_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
sfp, sfp_dma);
if (rsp_payload)
dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
rsp_payload, rsp_payload_dma);
if (rsp_els)
dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els),
rsp_els, rsp_els_dma);
}
void
qla24xx_free_purex_item(struct purex_item *item)
{
if (item == &item->vha->default_item)
memset(&item->vha->default_item, 0, sizeof(struct purex_item));
else
kfree(item);
}
void qla24xx_process_purex_list(struct purex_list *list)
{
struct list_head head = LIST_HEAD_INIT(head);
struct purex_item *item, *next;
ulong flags;
spin_lock_irqsave(&list->lock, flags);
list_splice_init(&list->head, &head);
spin_unlock_irqrestore(&list->lock, flags);
list_for_each_entry_safe(item, next, &head, list) {
list_del(&item->list);
item->process_item(item->vha, item);
qla24xx_free_purex_item(item);
}
}
/*
* Context: task, can sleep
*/
void
qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
{
#if 0
uint16_t options = (requester_id << 15) | BIT_7;
#endif
uint16_t retry;
uint32_t data;
struct qla_hw_data *ha = base_vha->hw;
might_sleep();
/* IDC-unlock implementation using driver-unlock/lock-id
* remote registers
*/
retry = 0;
retry_unlock:
if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
== QLA_SUCCESS) {
if (data == ha->portnum) {
qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
/* Clearing lock-id by setting 0xff */
qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
} else if (retry < 10) {
/* SV: XXX: IDC unlock retrying needed here? */
/* Retry for IDC-unlock */
msleep(QLA83XX_WAIT_LOGIC_MS);
retry++;
ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
"Failed to release IDC lock, retrying=%d\n", retry);
goto retry_unlock;
}
} else if (retry < 10) {
/* Retry for IDC-unlock */
msleep(QLA83XX_WAIT_LOGIC_MS);
retry++;
ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
"Failed to read drv-lockid, retrying=%d\n", retry);
goto retry_unlock;
}
return;
#if 0
/* XXX: IDC-unlock implementation using access-control mbx */
retry = 0;
retry_unlock2:
if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
if (retry < 10) {
/* Retry for IDC-unlock */
msleep(QLA83XX_WAIT_LOGIC_MS);
retry++;
ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
"Failed to release IDC lock, retrying=%d\n", retry);
goto retry_unlock2;
}
}
return;
#endif
}
int
__qla83xx_set_drv_presence(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
uint32_t drv_presence;
rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
if (rval == QLA_SUCCESS) {
drv_presence |= (1 << ha->portnum);
rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
drv_presence);
}
return rval;
}
int
qla83xx_set_drv_presence(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
qla83xx_idc_lock(vha, 0);
rval = __qla83xx_set_drv_presence(vha);
qla83xx_idc_unlock(vha, 0);
return rval;
}
int
__qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
uint32_t drv_presence;
rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
if (rval == QLA_SUCCESS) {
drv_presence &= ~(1 << ha->portnum);
rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
drv_presence);
}
return rval;
}
int
qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
qla83xx_idc_lock(vha, 0);
rval = __qla83xx_clear_drv_presence(vha);
qla83xx_idc_unlock(vha, 0);
return rval;
}
static void
qla83xx_need_reset_handler(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t drv_ack, drv_presence;
unsigned long ack_timeout;
/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
while (1) {
qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
if ((drv_ack & drv_presence) == drv_presence)
break;
if (time_after_eq(jiffies, ack_timeout)) {
ql_log(ql_log_warn, vha, 0xb067,
"RESET ACK TIMEOUT! drv_presence=0x%x "
"drv_ack=0x%x\n", drv_presence, drv_ack);
/*
* The function(s) which did not ack in time are forced
* to withdraw any further participation in the IDC
* reset.
*/
if (drv_ack != drv_presence)
qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
drv_ack);
break;
}
qla83xx_idc_unlock(vha, 0);
msleep(1000);
qla83xx_idc_lock(vha, 0);
}
qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
}
static int
qla83xx_device_bootstrap(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
uint32_t idc_control;
qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
__qla83xx_get_idc_control(vha, &idc_control);
idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
__qla83xx_set_idc_control(vha, 0);
qla83xx_idc_unlock(vha, 0);
rval = qla83xx_restart_nic_firmware(vha);
qla83xx_idc_lock(vha, 0);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb06a,
"Failed to restart NIC f/w.\n");
qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
} else {
ql_dbg(ql_dbg_p3p, vha, 0xb06c,
"Success in restarting nic f/w.\n");
qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
}
return rval;
}
/* Assumes idc_lock always held on entry */
int
qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
{
struct qla_hw_data *ha = base_vha->hw;
int rval = QLA_SUCCESS;
unsigned long dev_init_timeout;
uint32_t dev_state;
/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
while (1) {
if (time_after_eq(jiffies, dev_init_timeout)) {
ql_log(ql_log_warn, base_vha, 0xb06e,
"Initialization TIMEOUT!\n");
/* Init timeout. Disable further NIC Core
* communication.
*/
qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
QLA8XXX_DEV_FAILED);
ql_log(ql_log_info, base_vha, 0xb06f,
"HW State: FAILED.\n");
}
qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
switch (dev_state) {
case QLA8XXX_DEV_READY:
if (ha->flags.nic_core_reset_owner)
qla83xx_idc_audit(base_vha,
IDC_AUDIT_COMPLETION);
ha->flags.nic_core_reset_owner = 0;
ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
"Reset_owner reset by 0x%x.\n",
ha->portnum);
goto exit;
case QLA8XXX_DEV_COLD:
if (ha->flags.nic_core_reset_owner)
rval = qla83xx_device_bootstrap(base_vha);
else {
/* Wait for AEN to change device-state */
qla83xx_idc_unlock(base_vha, 0);
msleep(1000);
qla83xx_idc_lock(base_vha, 0);
}
break;
case QLA8XXX_DEV_INITIALIZING:
/* Wait for AEN to change device-state */
qla83xx_idc_unlock(base_vha, 0);
msleep(1000);
qla83xx_idc_lock(base_vha, 0);
break;
case QLA8XXX_DEV_NEED_RESET:
if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
qla83xx_need_reset_handler(base_vha);
else {
/* Wait for AEN to change device-state */
qla83xx_idc_unlock(base_vha, 0);
msleep(1000);
qla83xx_idc_lock(base_vha, 0);
}
/* reset timeout value after need reset handler */
dev_init_timeout = jiffies +
(ha->fcoe_dev_init_timeout * HZ);
break;
case QLA8XXX_DEV_NEED_QUIESCENT:
/* XXX: DEBUG for now */
qla83xx_idc_unlock(base_vha, 0);
msleep(1000);
qla83xx_idc_lock(base_vha, 0);
break;
case QLA8XXX_DEV_QUIESCENT:
/* XXX: DEBUG for now */
if (ha->flags.quiesce_owner)
goto exit;
qla83xx_idc_unlock(base_vha, 0);
msleep(1000);
qla83xx_idc_lock(base_vha, 0);
dev_init_timeout = jiffies +
(ha->fcoe_dev_init_timeout * HZ);
break;
case QLA8XXX_DEV_FAILED:
if (ha->flags.nic_core_reset_owner)
qla83xx_idc_audit(base_vha,
IDC_AUDIT_COMPLETION);
ha->flags.nic_core_reset_owner = 0;
__qla83xx_clear_drv_presence(base_vha);
qla83xx_idc_unlock(base_vha, 0);
qla8xxx_dev_failed_handler(base_vha);
rval = QLA_FUNCTION_FAILED;
qla83xx_idc_lock(base_vha, 0);
goto exit;
case QLA8XXX_BAD_VALUE:
qla83xx_idc_unlock(base_vha, 0);
msleep(1000);
qla83xx_idc_lock(base_vha, 0);
break;
default:
ql_log(ql_log_warn, base_vha, 0xb071,
"Unknown Device State: %x.\n", dev_state);
qla83xx_idc_unlock(base_vha, 0);
qla8xxx_dev_failed_handler(base_vha);
rval = QLA_FUNCTION_FAILED;
qla83xx_idc_lock(base_vha, 0);
goto exit;
}
}
exit:
return rval;
}
void
qla2x00_disable_board_on_pci_error(struct work_struct *work)
{
struct qla_hw_data *ha = container_of(work, struct qla_hw_data,
board_disable);
struct pci_dev *pdev = ha->pdev;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
ql_log(ql_log_warn, base_vha, 0x015b,
"Disabling adapter.\n");
if (!atomic_read(&pdev->enable_cnt)) {
ql_log(ql_log_info, base_vha, 0xfffc,
"PCI device disabled, no action req for PCI error=%lx\n",
base_vha->pci_flags);
return;
}
/*
* if UNLOADING flag is already set, then continue unload,
* where it was set first.
*/
if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
return;
qla2x00_wait_for_sess_deletion(base_vha);
qla2x00_delete_all_vps(ha, base_vha);
qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
qla2x00_dfs_remove(base_vha);
qla84xx_put_chip(base_vha);
if (base_vha->timer_active)
qla2x00_stop_timer(base_vha);
base_vha->flags.online = 0;
qla2x00_destroy_deferred_work(ha);
/*
* Do not try to stop beacon blink as it will issue a mailbox
* command.
*/
qla2x00_free_sysfs_attr(base_vha, false);
fc_remove_host(base_vha->host);
scsi_remove_host(base_vha->host);
base_vha->flags.init_done = 0;
qla25xx_delete_queues(base_vha);
qla2x00_free_fcports(base_vha);
qla2x00_free_irqs(base_vha);
qla2x00_mem_free(ha);
qla82xx_md_free(base_vha);
qla2x00_free_queues(ha);
qla2x00_unmap_iobases(ha);
pci_release_selected_regions(ha->pdev, ha->bars);
pci_disable_device(pdev);
/*
* Let qla2x00_remove_one cleanup qla_hw_data on device removal.
*/
}
/**************************************************************************
* qla2x00_do_dpc
* This kernel thread is a task that is schedule by the interrupt handler
* to perform the background processing for interrupts.
*
* Notes:
* This task always run in the context of a kernel thread. It
* is kick-off by the driver's detect code and starts up
* up one per adapter. It immediately goes to sleep and waits for
* some fibre event. When either the interrupt handler or
* the timer routine detects a event it will one of the task
* bits then wake us up.
**************************************************************************/
static int
qla2x00_do_dpc(void *data)
{
scsi_qla_host_t *base_vha;
struct qla_hw_data *ha;
uint32_t online;
struct qla_qpair *qpair;
ha = (struct qla_hw_data *)data;
base_vha = pci_get_drvdata(ha->pdev);
set_user_nice(current, MIN_NICE);
set_current_state(TASK_INTERRUPTIBLE);
while (!kthread_should_stop()) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
"DPC handler sleeping.\n");
schedule();
if (test_and_clear_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags))
qla_pci_set_eeh_busy(base_vha);
if (!base_vha->flags.init_done || ha->flags.mbox_busy)
goto end_loop;
if (ha->flags.eeh_busy) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
"eeh_busy=%d.\n", ha->flags.eeh_busy);
goto end_loop;
}
ha->dpc_active = 1;
ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
"DPC handler waking up, dpc_flags=0x%lx.\n",
base_vha->dpc_flags);
if (test_bit(UNLOADING, &base_vha->dpc_flags))
break;
if (IS_P3P_TYPE(ha)) {
if (IS_QLA8044(ha)) {
if (test_and_clear_bit(ISP_UNRECOVERABLE,
&base_vha->dpc_flags)) {
qla8044_idc_lock(ha);
qla8044_wr_direct(base_vha,
QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_FAILED);
qla8044_idc_unlock(ha);
ql_log(ql_log_info, base_vha, 0x4004,
"HW State: FAILED.\n");
qla8044_device_state_handler(base_vha);
continue;
}
} else {
if (test_and_clear_bit(ISP_UNRECOVERABLE,
&base_vha->dpc_flags)) {
qla82xx_idc_lock(ha);
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA8XXX_DEV_FAILED);
qla82xx_idc_unlock(ha);
ql_log(ql_log_info, base_vha, 0x0151,
"HW State: FAILED.\n");
qla82xx_device_state_handler(base_vha);
continue;
}
}
if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
&base_vha->dpc_flags)) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
"FCoE context reset scheduled.\n");
if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
&base_vha->dpc_flags))) {
if (qla82xx_fcoe_ctx_reset(base_vha)) {
/* FCoE-ctx reset failed.
* Escalate to chip-reset
*/
set_bit(ISP_ABORT_NEEDED,
&base_vha->dpc_flags);
}
clear_bit(ABORT_ISP_ACTIVE,
&base_vha->dpc_flags);
}
ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
"FCoE context reset end.\n");
}
} else if (IS_QLAFX00(ha)) {
if (test_and_clear_bit(ISP_UNRECOVERABLE,
&base_vha->dpc_flags)) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
"Firmware Reset Recovery\n");
if (qlafx00_reset_initialize(base_vha)) {
/* Failed. Abort isp later. */
if (!test_bit(UNLOADING,
&base_vha->dpc_flags)) {
set_bit(ISP_UNRECOVERABLE,
&base_vha->dpc_flags);
ql_dbg(ql_dbg_dpc, base_vha,
0x4021,
"Reset Recovery Failed\n");
}
}
}
if (test_and_clear_bit(FX00_TARGET_SCAN,
&base_vha->dpc_flags)) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
"ISPFx00 Target Scan scheduled\n");
if (qlafx00_rescan_isp(base_vha)) {
if (!test_bit(UNLOADING,
&base_vha->dpc_flags))
set_bit(ISP_UNRECOVERABLE,
&base_vha->dpc_flags);
ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
"ISPFx00 Target Scan Failed\n");
}
ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
"ISPFx00 Target Scan End\n");
}
if (test_and_clear_bit(FX00_HOST_INFO_RESEND,
&base_vha->dpc_flags)) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4023,
"ISPFx00 Host Info resend scheduled\n");
qlafx00_fx_disc(base_vha,
&base_vha->hw->mr.fcport,
FXDISC_REG_HOST_INFO);
}
}
if (test_and_clear_bit(DETECT_SFP_CHANGE,
&base_vha->dpc_flags)) {
/* Semantic:
* - NO-OP -- await next ISP-ABORT. Preferred method
* to minimize disruptions that will occur
* when a forced chip-reset occurs.
* - Force -- ISP-ABORT scheduled.
*/
/* set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); */
}
if (test_and_clear_bit
(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
!test_bit(UNLOADING, &base_vha->dpc_flags)) {
bool do_reset = true;
switch (base_vha->qlini_mode) {
case QLA2XXX_INI_MODE_ENABLED:
break;
case QLA2XXX_INI_MODE_DISABLED:
if (!qla_tgt_mode_enabled(base_vha) &&
!ha->flags.fw_started)
do_reset = false;
break;
case QLA2XXX_INI_MODE_DUAL:
if (!qla_dual_mode_enabled(base_vha) &&
!ha->flags.fw_started)
do_reset = false;
break;
default:
break;
}
if (do_reset && !(test_and_set_bit(ABORT_ISP_ACTIVE,
&base_vha->dpc_flags))) {
base_vha->flags.online = 1;
ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
"ISP abort scheduled.\n");
if (ha->isp_ops->abort_isp(base_vha)) {
/* failed. retry later */
set_bit(ISP_ABORT_NEEDED,
&base_vha->dpc_flags);
}
clear_bit(ABORT_ISP_ACTIVE,
&base_vha->dpc_flags);
ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
"ISP abort end.\n");
}
}
if (test_bit(PROCESS_PUREX_IOCB, &base_vha->dpc_flags)) {
if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
qla24xx_process_purex_list
(&base_vha->purex_list);
clear_bit(PROCESS_PUREX_IOCB,
&base_vha->dpc_flags);
}
}
if (IS_QLAFX00(ha))
goto loop_resync_check;
if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
"Quiescence mode scheduled.\n");
if (IS_P3P_TYPE(ha)) {
if (IS_QLA82XX(ha))
qla82xx_device_state_handler(base_vha);
if (IS_QLA8044(ha))
qla8044_device_state_handler(base_vha);
clear_bit(ISP_QUIESCE_NEEDED,
&base_vha->dpc_flags);
if (!ha->flags.quiesce_owner) {
qla2x00_perform_loop_resync(base_vha);
if (IS_QLA82XX(ha)) {
qla82xx_idc_lock(ha);
qla82xx_clear_qsnt_ready(
base_vha);
qla82xx_idc_unlock(ha);
} else if (IS_QLA8044(ha)) {
qla8044_idc_lock(ha);
qla8044_clear_qsnt_ready(
base_vha);
qla8044_idc_unlock(ha);
}
}
} else {
clear_bit(ISP_QUIESCE_NEEDED,
&base_vha->dpc_flags);
qla2x00_quiesce_io(base_vha);
}
ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
"Quiescence mode end.\n");
}
if (test_and_clear_bit(RESET_MARKER_NEEDED,
&base_vha->dpc_flags) &&
(!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
"Reset marker scheduled.\n");
qla2x00_rst_aen(base_vha);
clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
"Reset marker end.\n");
}
/* Retry each device up to login retry count */
if (test_bit(RELOGIN_NEEDED, &base_vha->dpc_flags) &&
!test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
if (!base_vha->relogin_jif ||
time_after_eq(jiffies, base_vha->relogin_jif)) {
base_vha->relogin_jif = jiffies + HZ;
clear_bit(RELOGIN_NEEDED, &base_vha->dpc_flags);
ql_dbg(ql_dbg_disc, base_vha, 0x400d,
"Relogin scheduled.\n");
qla24xx_post_relogin_work(base_vha);
}
}
loop_resync_check:
if (!qla2x00_reset_active(base_vha) &&
test_and_clear_bit(LOOP_RESYNC_NEEDED,
&base_vha->dpc_flags)) {
/*
* Allow abort_isp to complete before moving on to scanning.
*/
ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
"Loop resync scheduled.\n");
if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
&base_vha->dpc_flags))) {
qla2x00_loop_resync(base_vha);
clear_bit(LOOP_RESYNC_ACTIVE,
&base_vha->dpc_flags);
}
ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
"Loop resync end.\n");
}
if (IS_QLAFX00(ha))
goto intr_on_check;
if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
atomic_read(&base_vha->loop_state) == LOOP_READY) {
clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
qla2xxx_flash_npiv_conf(base_vha);
}
intr_on_check:
if (!ha->interrupts_on)
ha->isp_ops->enable_intrs(ha);
if (test_and_clear_bit(BEACON_BLINK_NEEDED,
&base_vha->dpc_flags)) {
if (ha->beacon_blink_led == 1)
ha->isp_ops->beacon_blink(base_vha);
}
/* qpair online check */
if (test_and_clear_bit(QPAIR_ONLINE_CHECK_NEEDED,
&base_vha->dpc_flags)) {
if (ha->flags.eeh_busy ||
ha->flags.pci_channel_io_perm_failure)
online = 0;
else
online = 1;
mutex_lock(&ha->mq_lock);
list_for_each_entry(qpair, &base_vha->qp_list,
qp_list_elem)
qpair->online = online;
mutex_unlock(&ha->mq_lock);
}
if (test_and_clear_bit(SET_ZIO_THRESHOLD_NEEDED,
&base_vha->dpc_flags)) {
u16 threshold = ha->nvme_last_rptd_aen + ha->last_zio_threshold;
if (threshold > ha->orig_fw_xcb_count)
threshold = ha->orig_fw_xcb_count;
ql_log(ql_log_info, base_vha, 0xffffff,
"SET ZIO Activity exchange threshold to %d.\n",
threshold);
if (qla27xx_set_zio_threshold(base_vha, threshold)) {
ql_log(ql_log_info, base_vha, 0xffffff,
"Unable to SET ZIO Activity exchange threshold to %d.\n",
threshold);
}
}
if (!IS_QLAFX00(ha))
qla2x00_do_dpc_all_vps(base_vha);
if (test_and_clear_bit(N2N_LINK_RESET,
&base_vha->dpc_flags)) {
qla2x00_lip_reset(base_vha);
}
ha->dpc_active = 0;
end_loop:
set_current_state(TASK_INTERRUPTIBLE);
} /* End of while(1) */
__set_current_state(TASK_RUNNING);
ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
"DPC handler exiting.\n");
/*
* Make sure that nobody tries to wake us up again.
*/
ha->dpc_active = 0;
/* Cleanup any residual CTX SRBs. */
qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
return 0;
}
void
qla2xxx_wake_dpc(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct task_struct *t = ha->dpc_thread;
if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
wake_up_process(t);
}
/*
* qla2x00_rst_aen
* Processes asynchronous reset.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla2x00_rst_aen(scsi_qla_host_t *vha)
{
if (vha->flags.online && !vha->flags.reset_active &&
!atomic_read(&vha->loop_down_timer) &&
!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
do {
clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
/*
* Issue marker command only when we are going to start
* the I/O.
*/
vha->marker_needed = 1;
} while (!atomic_read(&vha->loop_down_timer) &&
(test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
}
}
static bool qla_do_heartbeat(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
u32 cmpl_cnt;
u16 i;
bool do_heartbeat = false;
/*
* Allow do_heartbeat only if we don’t have any active interrupts,
* but there are still IOs outstanding with firmware.
*/
cmpl_cnt = ha->base_qpair->cmd_completion_cnt;
if (cmpl_cnt == ha->base_qpair->prev_completion_cnt &&
cmpl_cnt != ha->base_qpair->cmd_cnt) {
do_heartbeat = true;
goto skip;
}
ha->base_qpair->prev_completion_cnt = cmpl_cnt;
for (i = 0; i < ha->max_qpairs; i++) {
if (ha->queue_pair_map[i]) {
cmpl_cnt = ha->queue_pair_map[i]->cmd_completion_cnt;
if (cmpl_cnt == ha->queue_pair_map[i]->prev_completion_cnt &&
cmpl_cnt != ha->queue_pair_map[i]->cmd_cnt) {
do_heartbeat = true;
break;
}
ha->queue_pair_map[i]->prev_completion_cnt = cmpl_cnt;
}
}
skip:
return do_heartbeat;
}
static void qla_heart_beat(struct scsi_qla_host *vha, u16 dpc_started)
{
struct qla_hw_data *ha = vha->hw;
if (vha->vp_idx)
return;
if (vha->hw->flags.eeh_busy || qla2x00_chip_is_down(vha))
return;
/*
* dpc thread cannot run if heartbeat is running at the same time.
* We also do not want to starve heartbeat task. Therefore, do
* heartbeat task at least once every 5 seconds.
*/
if (dpc_started &&
time_before(jiffies, ha->last_heartbeat_run_jiffies + 5 * HZ))
return;
if (qla_do_heartbeat(vha)) {
ha->last_heartbeat_run_jiffies = jiffies;
queue_work(ha->wq, &ha->heartbeat_work);
}
}
static void qla_wind_down_chip(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (!ha->flags.eeh_busy)
return;
if (ha->pci_error_state)
/* system is trying to recover */
return;
/*
* Current system is not handling PCIE error. At this point, this is
* best effort to wind down the adapter.
*/
if (time_after_eq(jiffies, ha->eeh_jif + ql2xdelay_before_pci_error_handling * HZ) &&
!ha->flags.eeh_flush) {
ql_log(ql_log_info, vha, 0x9009,
"PCI Error detected, attempting to reset hardware.\n");
ha->isp_ops->reset_chip(vha);
ha->isp_ops->disable_intrs(ha);
ha->flags.eeh_flush = EEH_FLUSH_RDY;
ha->eeh_jif = jiffies;
} else if (ha->flags.eeh_flush == EEH_FLUSH_RDY &&
time_after_eq(jiffies, ha->eeh_jif + 5 * HZ)) {
pci_clear_master(ha->pdev);
/* flush all command */
qla2x00_abort_isp_cleanup(vha);
ha->flags.eeh_flush = EEH_FLUSH_DONE;
ql_log(ql_log_info, vha, 0x900a,
"PCI Error handling complete, all IOs aborted.\n");
}
}
/**************************************************************************
* qla2x00_timer
*
* Description:
* One second timer
*
* Context: Interrupt
***************************************************************************/
void
qla2x00_timer(struct timer_list *t)
{
scsi_qla_host_t *vha = from_timer(vha, t, timer);
unsigned long cpu_flags = 0;
int start_dpc = 0;
int index;
srb_t *sp;
uint16_t w;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
unsigned long flags;
fc_port_t *fcport = NULL;
if (ha->flags.eeh_busy) {
qla_wind_down_chip(vha);
ql_dbg(ql_dbg_timer, vha, 0x6000,
"EEH = %d, restarting timer.\n",
ha->flags.eeh_busy);
qla2x00_restart_timer(vha, WATCH_INTERVAL);
return;
}
/*
* Hardware read to raise pending EEH errors during mailbox waits. If
* the read returns -1 then disable the board.
*/
if (!pci_channel_offline(ha->pdev)) {
pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
qla2x00_check_reg16_for_disconnect(vha, w);
}
/* Make sure qla82xx_watchdog is run only for physical port */
if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
start_dpc++;
if (IS_QLA82XX(ha))
qla82xx_watchdog(vha);
else if (IS_QLA8044(ha))
qla8044_watchdog(vha);
}
if (!vha->vp_idx && IS_QLAFX00(ha))
qlafx00_timer_routine(vha);
if (vha->link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
vha->link_down_time++;
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->tgt_link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
fcport->tgt_link_down_time++;
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
/* Loop down handler. */
if (atomic_read(&vha->loop_down_timer) > 0 &&
!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
!(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
&& vha->flags.online) {
if (atomic_read(&vha->loop_down_timer) ==
vha->loop_down_abort_time) {
ql_log(ql_log_info, vha, 0x6008,
"Loop down - aborting the queues before time expires.\n");
if (!IS_QLA2100(ha) && vha->link_down_timeout)
atomic_set(&vha->loop_state, LOOP_DEAD);
/*
* Schedule an ISP abort to return any FCP2-device
* commands.
*/
/* NPIV - scan physical port only */
if (!vha->vp_idx) {
spin_lock_irqsave(&ha->hardware_lock,
cpu_flags);
req = ha->req_q_map[0];
for (index = 1;
index < req->num_outstanding_cmds;
index++) {
fc_port_t *sfcp;
sp = req->outstanding_cmds[index];
if (!sp)
continue;
if (sp->cmd_type != TYPE_SRB)
continue;
if (sp->type != SRB_SCSI_CMD)
continue;
sfcp = sp->fcport;
if (!(sfcp->flags & FCF_FCP2_DEVICE))
continue;
if (IS_QLA82XX(ha))
set_bit(FCOE_CTX_RESET_NEEDED,
&vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
break;
}
spin_unlock_irqrestore(&ha->hardware_lock,
cpu_flags);
}
start_dpc++;
}
/* if the loop has been down for 4 minutes, reinit adapter */
if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
if (!(vha->device_flags & DFLG_NO_CABLE) && !vha->vp_idx) {
ql_log(ql_log_warn, vha, 0x6009,
"Loop down - aborting ISP.\n");
if (IS_QLA82XX(ha))
set_bit(FCOE_CTX_RESET_NEEDED,
&vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
}
}
ql_dbg(ql_dbg_timer, vha, 0x600a,
"Loop down - seconds remaining %d.\n",
atomic_read(&vha->loop_down_timer));
}
/* Check if beacon LED needs to be blinked for physical host only */
if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
/* There is no beacon_blink function for ISP82xx */
if (!IS_P3P_TYPE(ha)) {
set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
start_dpc++;
}
}
/* check if edif running */
if (vha->hw->flags.edif_enabled)
qla_edif_timer(vha);
/* Process any deferred work. */
if (!list_empty(&vha->work_list)) {
unsigned long flags;
bool q = false;
spin_lock_irqsave(&vha->work_lock, flags);
if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
q = true;
spin_unlock_irqrestore(&vha->work_lock, flags);
if (q)
queue_work(vha->hw->wq, &vha->iocb_work);
}
/*
* FC-NVME
* see if the active AEN count has changed from what was last reported.
*/
index = atomic_read(&ha->nvme_active_aen_cnt);
if (!vha->vp_idx &&
(index != ha->nvme_last_rptd_aen) &&
ha->zio_mode == QLA_ZIO_MODE_6 &&
!ha->flags.host_shutting_down) {
ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt);
ql_log(ql_log_info, vha, 0x3002,
"nvme: Sched: Set ZIO exchange threshold to %d.\n",
ha->nvme_last_rptd_aen);
set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
start_dpc++;
}
if (!vha->vp_idx &&
atomic_read(&ha->zio_threshold) != ha->last_zio_threshold &&
IS_ZIO_THRESHOLD_CAPABLE(ha)) {
ql_log(ql_log_info, vha, 0x3002,
"Sched: Set ZIO exchange threshold to %d.\n",
ha->last_zio_threshold);
ha->last_zio_threshold = atomic_read(&ha->zio_threshold);
set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
start_dpc++;
}
qla_adjust_buf(vha);
/* borrowing w to signify dpc will run */
w = 0;
/* Schedule the DPC routine if needed */
if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
start_dpc ||
test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
test_bit(RELOGIN_NEEDED, &vha->dpc_flags) ||
test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags))) {
ql_dbg(ql_dbg_timer, vha, 0x600b,
"isp_abort_needed=%d loop_resync_needed=%d "
"start_dpc=%d reset_marker_needed=%d",
test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
start_dpc, test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
ql_dbg(ql_dbg_timer, vha, 0x600c,
"beacon_blink_needed=%d isp_unrecoverable=%d "
"fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
"relogin_needed=%d, Process_purex_iocb=%d.\n",
test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
test_bit(RELOGIN_NEEDED, &vha->dpc_flags),
test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags));
qla2xxx_wake_dpc(vha);
w = 1;
}
qla_heart_beat(vha, w);
qla2x00_restart_timer(vha, WATCH_INTERVAL);
}
/* Firmware interface routines. */
#define FW_ISP21XX 0
#define FW_ISP22XX 1
#define FW_ISP2300 2
#define FW_ISP2322 3
#define FW_ISP24XX 4
#define FW_ISP25XX 5
#define FW_ISP81XX 6
#define FW_ISP82XX 7
#define FW_ISP2031 8
#define FW_ISP8031 9
#define FW_ISP27XX 10
#define FW_ISP28XX 11
#define FW_FILE_ISP21XX "ql2100_fw.bin"
#define FW_FILE_ISP22XX "ql2200_fw.bin"
#define FW_FILE_ISP2300 "ql2300_fw.bin"
#define FW_FILE_ISP2322 "ql2322_fw.bin"
#define FW_FILE_ISP24XX "ql2400_fw.bin"
#define FW_FILE_ISP25XX "ql2500_fw.bin"
#define FW_FILE_ISP81XX "ql8100_fw.bin"
#define FW_FILE_ISP82XX "ql8200_fw.bin"
#define FW_FILE_ISP2031 "ql2600_fw.bin"
#define FW_FILE_ISP8031 "ql8300_fw.bin"
#define FW_FILE_ISP27XX "ql2700_fw.bin"
#define FW_FILE_ISP28XX "ql2800_fw.bin"
static DEFINE_MUTEX(qla_fw_lock);
static struct fw_blob qla_fw_blobs[] = {
{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
{ .name = FW_FILE_ISP24XX, },
{ .name = FW_FILE_ISP25XX, },
{ .name = FW_FILE_ISP81XX, },
{ .name = FW_FILE_ISP82XX, },
{ .name = FW_FILE_ISP2031, },
{ .name = FW_FILE_ISP8031, },
{ .name = FW_FILE_ISP27XX, },
{ .name = FW_FILE_ISP28XX, },
{ .name = NULL, },
};
struct fw_blob *
qla2x00_request_firmware(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct fw_blob *blob;
if (IS_QLA2100(ha)) {
blob = &qla_fw_blobs[FW_ISP21XX];
} else if (IS_QLA2200(ha)) {
blob = &qla_fw_blobs[FW_ISP22XX];
} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
blob = &qla_fw_blobs[FW_ISP2300];
} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
blob = &qla_fw_blobs[FW_ISP2322];
} else if (IS_QLA24XX_TYPE(ha)) {
blob = &qla_fw_blobs[FW_ISP24XX];
} else if (IS_QLA25XX(ha)) {
blob = &qla_fw_blobs[FW_ISP25XX];
} else if (IS_QLA81XX(ha)) {
blob = &qla_fw_blobs[FW_ISP81XX];
} else if (IS_QLA82XX(ha)) {
blob = &qla_fw_blobs[FW_ISP82XX];
} else if (IS_QLA2031(ha)) {
blob = &qla_fw_blobs[FW_ISP2031];
} else if (IS_QLA8031(ha)) {
blob = &qla_fw_blobs[FW_ISP8031];
} else if (IS_QLA27XX(ha)) {
blob = &qla_fw_blobs[FW_ISP27XX];
} else if (IS_QLA28XX(ha)) {
blob = &qla_fw_blobs[FW_ISP28XX];
} else {
return NULL;
}
if (!blob->name)
return NULL;
mutex_lock(&qla_fw_lock);
if (blob->fw)
goto out;
if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
ql_log(ql_log_warn, vha, 0x0063,
"Failed to load firmware image (%s).\n", blob->name);
blob->fw = NULL;
blob = NULL;
}
out:
mutex_unlock(&qla_fw_lock);
return blob;
}
static void
qla2x00_release_firmware(void)
{
struct fw_blob *blob;
mutex_lock(&qla_fw_lock);
for (blob = qla_fw_blobs; blob->name; blob++)
release_firmware(blob->fw);
mutex_unlock(&qla_fw_lock);
}
static void qla_pci_error_cleanup(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
struct qla_qpair *qpair = NULL;
struct scsi_qla_host *vp, *tvp;
fc_port_t *fcport;
int i;
unsigned long flags;
ql_dbg(ql_dbg_aer, vha, 0x9000,
"%s\n", __func__);
ha->chip_reset++;
ha->base_qpair->chip_reset = ha->chip_reset;
for (i = 0; i < ha->max_qpairs; i++) {
if (ha->queue_pair_map[i])
ha->queue_pair_map[i]->chip_reset =
ha->base_qpair->chip_reset;
}
/*
* purge mailbox might take a while. Slot Reset/chip reset
* will take care of the purge
*/
mutex_lock(&ha->mq_lock);
ha->base_qpair->online = 0;
list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
qpair->online = 0;
wmb();
mutex_unlock(&ha->mq_lock);
qla2x00_mark_all_devices_lost(vha);
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
qla2x00_mark_all_devices_lost(vp);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
/* Clear all async request states across all VPs. */
list_for_each_entry(fcport, &vha->vp_fcports, list)
fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
list_for_each_entry(fcport, &vp->vp_fcports, list)
fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
}
static pci_ers_result_t
qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
scsi_qla_host_t *vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = vha->hw;
pci_ers_result_t ret = PCI_ERS_RESULT_NEED_RESET;
ql_log(ql_log_warn, vha, 0x9000,
"PCI error detected, state %x.\n", state);
ha->pci_error_state = QLA_PCI_ERR_DETECTED;
if (!atomic_read(&pdev->enable_cnt)) {
ql_log(ql_log_info, vha, 0xffff,
"PCI device is disabled,state %x\n", state);
ret = PCI_ERS_RESULT_NEED_RESET;
goto out;
}
switch (state) {
case pci_channel_io_normal:
qla_pci_set_eeh_busy(vha);
if (ql2xmqsupport || ql2xnvmeenable) {
set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
ret = PCI_ERS_RESULT_CAN_RECOVER;
break;
case pci_channel_io_frozen:
qla_pci_set_eeh_busy(vha);
ret = PCI_ERS_RESULT_NEED_RESET;
break;
case pci_channel_io_perm_failure:
ha->flags.pci_channel_io_perm_failure = 1;
qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
if (ql2xmqsupport || ql2xnvmeenable) {
set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
ret = PCI_ERS_RESULT_DISCONNECT;
}
out:
ql_dbg(ql_dbg_aer, vha, 0x600d,
"PCI error detected returning [%x].\n", ret);
return ret;
}
static pci_ers_result_t
qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
{
int risc_paused = 0;
uint32_t stat;
unsigned long flags;
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
ql_log(ql_log_warn, base_vha, 0x9000,
"mmio enabled\n");
ha->pci_error_state = QLA_PCI_MMIO_ENABLED;
if (IS_QLA82XX(ha))
return PCI_ERS_RESULT_RECOVERED;
if (qla2x00_isp_reg_stat(ha)) {
ql_log(ql_log_info, base_vha, 0x803f,
"During mmio enabled, PCI/Register disconnect still detected.\n");
goto out;
}
spin_lock_irqsave(&ha->hardware_lock, flags);
if (IS_QLA2100(ha) || IS_QLA2200(ha)){
stat = rd_reg_word(®->hccr);
if (stat & HCCR_RISC_PAUSE)
risc_paused = 1;
} else if (IS_QLA23XX(ha)) {
stat = rd_reg_dword(®->u.isp2300.host_status);
if (stat & HSR_RISC_PAUSED)
risc_paused = 1;
} else if (IS_FWI2_CAPABLE(ha)) {
stat = rd_reg_dword(®24->host_status);
if (stat & HSRX_RISC_PAUSED)
risc_paused = 1;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (risc_paused) {
ql_log(ql_log_info, base_vha, 0x9003,
"RISC paused -- mmio_enabled, Dumping firmware.\n");
qla2xxx_dump_fw(base_vha);
}
out:
/* set PCI_ERS_RESULT_NEED_RESET to trigger call to qla2xxx_pci_slot_reset */
ql_dbg(ql_dbg_aer, base_vha, 0x600d,
"mmio enabled returning.\n");
return PCI_ERS_RESULT_NEED_RESET;
}
static pci_ers_result_t
qla2xxx_pci_slot_reset(struct pci_dev *pdev)
{
pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
int rc;
struct qla_qpair *qpair = NULL;
ql_log(ql_log_warn, base_vha, 0x9004,
"Slot Reset.\n");
ha->pci_error_state = QLA_PCI_SLOT_RESET;
/* Workaround: qla2xxx driver which access hardware earlier
* needs error state to be pci_channel_io_online.
* Otherwise mailbox command timesout.
*/
pdev->error_state = pci_channel_io_normal;
pci_restore_state(pdev);
/* pci_restore_state() clears the saved_state flag of the device
* save restored state which resets saved_state flag
*/
pci_save_state(pdev);
if (ha->mem_only)
rc = pci_enable_device_mem(pdev);
else
rc = pci_enable_device(pdev);
if (rc) {
ql_log(ql_log_warn, base_vha, 0x9005,
"Can't re-enable PCI device after reset.\n");
goto exit_slot_reset;
}
if (ha->isp_ops->pci_config(base_vha))
goto exit_slot_reset;
mutex_lock(&ha->mq_lock);
list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
qpair->online = 1;
mutex_unlock(&ha->mq_lock);
ha->flags.eeh_busy = 0;
base_vha->flags.online = 1;
set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
ha->isp_ops->abort_isp(base_vha);
clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
if (qla2x00_isp_reg_stat(ha)) {
ha->flags.eeh_busy = 1;
qla_pci_error_cleanup(base_vha);
ql_log(ql_log_warn, base_vha, 0x9005,
"Device unable to recover from PCI error.\n");
} else {
ret = PCI_ERS_RESULT_RECOVERED;
}
exit_slot_reset:
ql_dbg(ql_dbg_aer, base_vha, 0x900e,
"Slot Reset returning %x.\n", ret);
return ret;
}
static void
qla2xxx_pci_resume(struct pci_dev *pdev)
{
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
int ret;
ql_log(ql_log_warn, base_vha, 0x900f,
"Pci Resume.\n");
ret = qla2x00_wait_for_hba_online(base_vha);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_fatal, base_vha, 0x9002,
"The device failed to resume I/O from slot/link_reset.\n");
}
ha->pci_error_state = QLA_PCI_RESUME;
ql_dbg(ql_dbg_aer, base_vha, 0x600d,
"Pci Resume returning.\n");
}
void qla_pci_set_eeh_busy(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
bool do_cleanup = false;
unsigned long flags;
if (ha->flags.eeh_busy)
return;
spin_lock_irqsave(&base_vha->work_lock, flags);
if (!ha->flags.eeh_busy) {
ha->eeh_jif = jiffies;
ha->flags.eeh_flush = 0;
ha->flags.eeh_busy = 1;
do_cleanup = true;
}
spin_unlock_irqrestore(&base_vha->work_lock, flags);
if (do_cleanup)
qla_pci_error_cleanup(base_vha);
}
/*
* this routine will schedule a task to pause IO from interrupt context
* if caller sees a PCIE error event (register read = 0xf's)
*/
void qla_schedule_eeh_work(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
if (ha->flags.eeh_busy)
return;
set_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags);
qla2xxx_wake_dpc(base_vha);
}
static void
qla_pci_reset_prepare(struct pci_dev *pdev)
{
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
struct qla_qpair *qpair;
ql_log(ql_log_warn, base_vha, 0xffff,
"%s.\n", __func__);
/*
* PCI FLR/function reset is about to reset the
* slot. Stop the chip to stop all DMA access.
* It is assumed that pci_reset_done will be called
* after FLR to resume Chip operation.
*/
ha->flags.eeh_busy = 1;
mutex_lock(&ha->mq_lock);
list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
qpair->online = 0;
mutex_unlock(&ha->mq_lock);
set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
qla2x00_abort_isp_cleanup(base_vha);
qla2x00_abort_all_cmds(base_vha, DID_RESET << 16);
}
static void
qla_pci_reset_done(struct pci_dev *pdev)
{
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
struct qla_qpair *qpair;
ql_log(ql_log_warn, base_vha, 0xffff,
"%s.\n", __func__);
/*
* FLR just completed by PCI layer. Resume adapter
*/
ha->flags.eeh_busy = 0;
mutex_lock(&ha->mq_lock);
list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
qpair->online = 1;
mutex_unlock(&ha->mq_lock);
base_vha->flags.online = 1;
ha->isp_ops->abort_isp(base_vha);
clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
}
static void qla2xxx_map_queues(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
if (USER_CTRL_IRQ(vha->hw) || !vha->hw->mqiobase)
blk_mq_map_queues(qmap);
else
blk_mq_pci_map_queues(qmap, vha->hw->pdev, vha->irq_offset);
}
struct scsi_host_template qla2xxx_driver_template = {
.module = THIS_MODULE,
.name = QLA2XXX_DRIVER_NAME,
.queuecommand = qla2xxx_queuecommand,
.eh_timed_out = fc_eh_timed_out,
.eh_abort_handler = qla2xxx_eh_abort,
.eh_should_retry_cmd = fc_eh_should_retry_cmd,
.eh_device_reset_handler = qla2xxx_eh_device_reset,
.eh_target_reset_handler = qla2xxx_eh_target_reset,
.eh_bus_reset_handler = qla2xxx_eh_bus_reset,
.eh_host_reset_handler = qla2xxx_eh_host_reset,
.slave_configure = qla2xxx_slave_configure,
.slave_alloc = qla2xxx_slave_alloc,
.slave_destroy = qla2xxx_slave_destroy,
.scan_finished = qla2xxx_scan_finished,
.scan_start = qla2xxx_scan_start,
.change_queue_depth = scsi_change_queue_depth,
.map_queues = qla2xxx_map_queues,
.this_id = -1,
.cmd_per_lun = 3,
.sg_tablesize = SG_ALL,
.max_sectors = 0xFFFF,
.shost_groups = qla2x00_host_groups,
.supported_mode = MODE_INITIATOR,
.track_queue_depth = 1,
.cmd_size = sizeof(srb_t),
};
static const struct pci_error_handlers qla2xxx_err_handler = {
.error_detected = qla2xxx_pci_error_detected,
.mmio_enabled = qla2xxx_pci_mmio_enabled,
.slot_reset = qla2xxx_pci_slot_reset,
.resume = qla2xxx_pci_resume,
.reset_prepare = qla_pci_reset_prepare,
.reset_done = qla_pci_reset_done,
};
static struct pci_device_id qla2xxx_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2061) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2081) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2281) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2089) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2289) },
{ 0 },
};
MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
static struct pci_driver qla2xxx_pci_driver = {
.name = QLA2XXX_DRIVER_NAME,
.driver = {
.owner = THIS_MODULE,
},
.id_table = qla2xxx_pci_tbl,
.probe = qla2x00_probe_one,
.remove = qla2x00_remove_one,
.shutdown = qla2x00_shutdown,
.err_handler = &qla2xxx_err_handler,
};
static const struct file_operations apidev_fops = {
.owner = THIS_MODULE,
.llseek = noop_llseek,
};
/**
* qla2x00_module_init - Module initialization.
**/
static int __init
qla2x00_module_init(void)
{
int ret = 0;
BUILD_BUG_ON(sizeof(cmd_a64_entry_t) != 64);
BUILD_BUG_ON(sizeof(cmd_entry_t) != 64);
BUILD_BUG_ON(sizeof(cont_a64_entry_t) != 64);
BUILD_BUG_ON(sizeof(cont_entry_t) != 64);
BUILD_BUG_ON(sizeof(init_cb_t) != 96);
BUILD_BUG_ON(sizeof(mrk_entry_t) != 64);
BUILD_BUG_ON(sizeof(ms_iocb_entry_t) != 64);
BUILD_BUG_ON(sizeof(request_t) != 64);
BUILD_BUG_ON(sizeof(struct abort_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct abort_iocb_entry_fx00) != 64);
BUILD_BUG_ON(sizeof(struct abts_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct access_chip_84xx) != 64);
BUILD_BUG_ON(sizeof(struct access_chip_rsp_84xx) != 64);
BUILD_BUG_ON(sizeof(struct cmd_bidir) != 64);
BUILD_BUG_ON(sizeof(struct cmd_nvme) != 64);
BUILD_BUG_ON(sizeof(struct cmd_type_6) != 64);
BUILD_BUG_ON(sizeof(struct cmd_type_7) != 64);
BUILD_BUG_ON(sizeof(struct cmd_type_7_fx00) != 64);
BUILD_BUG_ON(sizeof(struct cmd_type_crc_2) != 64);
BUILD_BUG_ON(sizeof(struct ct_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct ct_fdmi1_hba_attributes) != 2604);
BUILD_BUG_ON(sizeof(struct ct_fdmi2_hba_attributes) != 4424);
BUILD_BUG_ON(sizeof(struct ct_fdmi2_port_attributes) != 4164);
BUILD_BUG_ON(sizeof(struct ct_fdmi_hba_attr) != 260);
BUILD_BUG_ON(sizeof(struct ct_fdmi_port_attr) != 260);
BUILD_BUG_ON(sizeof(struct ct_rsp_hdr) != 16);
BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
BUILD_BUG_ON(sizeof(struct device_reg_24xx) != 256);
BUILD_BUG_ON(sizeof(struct device_reg_25xxmq) != 24);
BUILD_BUG_ON(sizeof(struct device_reg_2xxx) != 256);
BUILD_BUG_ON(sizeof(struct device_reg_82xx) != 1288);
BUILD_BUG_ON(sizeof(struct device_reg_fx00) != 216);
BUILD_BUG_ON(sizeof(struct els_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct els_sts_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct fxdisc_entry_fx00) != 64);
BUILD_BUG_ON(sizeof(struct imm_ntfy_from_isp) != 64);
BUILD_BUG_ON(sizeof(struct init_cb_24xx) != 128);
BUILD_BUG_ON(sizeof(struct init_cb_81xx) != 128);
BUILD_BUG_ON(sizeof(struct logio_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct mbx_entry) != 64);
BUILD_BUG_ON(sizeof(struct mid_init_cb_24xx) != 5252);
BUILD_BUG_ON(sizeof(struct mrk_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct nvram_24xx) != 512);
BUILD_BUG_ON(sizeof(struct nvram_81xx) != 512);
BUILD_BUG_ON(sizeof(struct pt_ls4_request) != 64);
BUILD_BUG_ON(sizeof(struct pt_ls4_rx_unsol) != 64);
BUILD_BUG_ON(sizeof(struct purex_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct qla2100_fw_dump) != 123634);
BUILD_BUG_ON(sizeof(struct qla2300_fw_dump) != 136100);
BUILD_BUG_ON(sizeof(struct qla24xx_fw_dump) != 37976);
BUILD_BUG_ON(sizeof(struct qla25xx_fw_dump) != 39228);
BUILD_BUG_ON(sizeof(struct qla2xxx_fce_chain) != 52);
BUILD_BUG_ON(sizeof(struct qla2xxx_fw_dump) != 136172);
BUILD_BUG_ON(sizeof(struct qla2xxx_mq_chain) != 524);
BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_chain) != 8);
BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_header) != 12);
BUILD_BUG_ON(sizeof(struct qla2xxx_offld_chain) != 24);
BUILD_BUG_ON(sizeof(struct qla81xx_fw_dump) != 39420);
BUILD_BUG_ON(sizeof(struct qla82xx_uri_data_desc) != 28);
BUILD_BUG_ON(sizeof(struct qla82xx_uri_table_desc) != 32);
BUILD_BUG_ON(sizeof(struct qla83xx_fw_dump) != 51196);
BUILD_BUG_ON(sizeof(struct qla_fcp_prio_cfg) != FCP_PRIO_CFG_SIZE);
BUILD_BUG_ON(sizeof(struct qla_fdt_layout) != 128);
BUILD_BUG_ON(sizeof(struct qla_flt_header) != 8);
BUILD_BUG_ON(sizeof(struct qla_flt_region) != 16);
BUILD_BUG_ON(sizeof(struct qla_npiv_entry) != 24);
BUILD_BUG_ON(sizeof(struct qla_npiv_header) != 16);
BUILD_BUG_ON(sizeof(struct rdp_rsp_payload) != 336);
BUILD_BUG_ON(sizeof(struct sns_cmd_pkt) != 2064);
BUILD_BUG_ON(sizeof(struct sts_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry) != 64);
BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry_fx00) != 64);
BUILD_BUG_ON(sizeof(struct verify_chip_entry_84xx) != 64);
BUILD_BUG_ON(sizeof(struct verify_chip_rsp_84xx) != 52);
BUILD_BUG_ON(sizeof(struct vf_evfp_entry_24xx) != 56);
BUILD_BUG_ON(sizeof(struct vp_config_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct vp_ctrl_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(struct vp_rpt_id_entry_24xx) != 64);
BUILD_BUG_ON(sizeof(sts21_entry_t) != 64);
BUILD_BUG_ON(sizeof(sts22_entry_t) != 64);
BUILD_BUG_ON(sizeof(sts_cont_entry_t) != 64);
BUILD_BUG_ON(sizeof(sts_entry_t) != 64);
BUILD_BUG_ON(sizeof(sw_info_t) != 32);
BUILD_BUG_ON(sizeof(target_id_t) != 2);
qla_trace_init();
/* Allocate cache for SRBs. */
srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
SLAB_HWCACHE_ALIGN, NULL);
if (srb_cachep == NULL) {
ql_log(ql_log_fatal, NULL, 0x0001,
"Unable to allocate SRB cache...Failing load!.\n");
return -ENOMEM;
}
/* Initialize target kmem_cache and mem_pools */
ret = qlt_init();
if (ret < 0) {
goto destroy_cache;
} else if (ret > 0) {
/*
* If initiator mode is explictly disabled by qlt_init(),
* prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
* performing scsi_scan_target() during LOOP UP event.
*/
qla2xxx_transport_functions.disable_target_scan = 1;
qla2xxx_transport_vport_functions.disable_target_scan = 1;
}
/* Derive version string. */
strcpy(qla2x00_version_str, QLA2XXX_VERSION);
if (ql2xextended_error_logging)
strcat(qla2x00_version_str, "-debug");
if (ql2xextended_error_logging == 1)
ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
qla2xxx_transport_template =
fc_attach_transport(&qla2xxx_transport_functions);
if (!qla2xxx_transport_template) {
ql_log(ql_log_fatal, NULL, 0x0002,
"fc_attach_transport failed...Failing load!.\n");
ret = -ENODEV;
goto qlt_exit;
}
apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
if (apidev_major < 0) {
ql_log(ql_log_fatal, NULL, 0x0003,
"Unable to register char device %s.\n", QLA2XXX_APIDEV);
}
qla2xxx_transport_vport_template =
fc_attach_transport(&qla2xxx_transport_vport_functions);
if (!qla2xxx_transport_vport_template) {
ql_log(ql_log_fatal, NULL, 0x0004,
"fc_attach_transport vport failed...Failing load!.\n");
ret = -ENODEV;
goto unreg_chrdev;
}
ql_log(ql_log_info, NULL, 0x0005,
"QLogic Fibre Channel HBA Driver: %s.\n",
qla2x00_version_str);
ret = pci_register_driver(&qla2xxx_pci_driver);
if (ret) {
ql_log(ql_log_fatal, NULL, 0x0006,
"pci_register_driver failed...ret=%d Failing load!.\n",
ret);
goto release_vport_transport;
}
return ret;
release_vport_transport:
fc_release_transport(qla2xxx_transport_vport_template);
unreg_chrdev:
if (apidev_major >= 0)
unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
fc_release_transport(qla2xxx_transport_template);
qlt_exit:
qlt_exit();
destroy_cache:
kmem_cache_destroy(srb_cachep);
qla_trace_uninit();
return ret;
}
/**
* qla2x00_module_exit - Module cleanup.
**/
static void __exit
qla2x00_module_exit(void)
{
pci_unregister_driver(&qla2xxx_pci_driver);
qla2x00_release_firmware();
kmem_cache_destroy(ctx_cachep);
fc_release_transport(qla2xxx_transport_vport_template);
if (apidev_major >= 0)
unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
fc_release_transport(qla2xxx_transport_template);
qlt_exit();
kmem_cache_destroy(srb_cachep);
qla_trace_uninit();
}
module_init(qla2x00_module_init);
module_exit(qla2x00_module_exit);
MODULE_AUTHOR("QLogic Corporation");
MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(FW_FILE_ISP21XX);
MODULE_FIRMWARE(FW_FILE_ISP22XX);
MODULE_FIRMWARE(FW_FILE_ISP2300);
MODULE_FIRMWARE(FW_FILE_ISP2322);
MODULE_FIRMWARE(FW_FILE_ISP24XX);
MODULE_FIRMWARE(FW_FILE_ISP25XX);
|
linux-master
|
drivers/scsi/qla2xxx/qla_os.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx
*
* based on qla2x00t.c code:
*
* Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <[email protected]>
* Copyright (C) 2004 - 2005 Leonid Stoljar
* Copyright (C) 2006 Nathaniel Clark <[email protected]>
* Copyright (C) 2006 - 2010 ID7 Ltd.
*
* Forward port and refactoring to modern qla2xxx and target/configfs
*
* Copyright (C) 2010-2013 Nicholas A. Bellinger <[email protected]>
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/blkdev.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/list.h>
#include <linux/workqueue.h>
#include <asm/unaligned.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include "qla_def.h"
#include "qla_target.h"
static int ql2xtgt_tape_enable;
module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xtgt_tape_enable,
"Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER.");
static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED;
module_param(qlini_mode, charp, S_IRUGO);
MODULE_PARM_DESC(qlini_mode,
"Determines when initiator mode will be enabled. Possible values: "
"\"exclusive\" - initiator mode will be enabled on load, "
"disabled on enabling target mode and then on disabling target mode "
"enabled back; "
"\"disabled\" - initiator mode will never be enabled; "
"\"dual\" - Initiator Modes will be enabled. Target Mode can be activated "
"when ready "
"\"enabled\" (default) - initiator mode will always stay enabled.");
int ql2xuctrlirq = 1;
module_param(ql2xuctrlirq, int, 0644);
MODULE_PARM_DESC(ql2xuctrlirq,
"User to control IRQ placement via smp_affinity."
"Valid with qlini_mode=disabled."
"1(default): enable");
int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
static int qla_sam_status = SAM_STAT_BUSY;
static int tc_sam_status = SAM_STAT_TASK_SET_FULL; /* target core */
/*
* From scsi/fc/fc_fcp.h
*/
enum fcp_resp_rsp_codes {
FCP_TMF_CMPL = 0,
FCP_DATA_LEN_INVALID = 1,
FCP_CMND_FIELDS_INVALID = 2,
FCP_DATA_PARAM_MISMATCH = 3,
FCP_TMF_REJECTED = 4,
FCP_TMF_FAILED = 5,
FCP_TMF_INVALID_LUN = 9,
};
/*
* fc_pri_ta from scsi/fc/fc_fcp.h
*/
#define FCP_PTA_SIMPLE 0 /* simple task attribute */
#define FCP_PTA_HEADQ 1 /* head of queue task attribute */
#define FCP_PTA_ORDERED 2 /* ordered task attribute */
#define FCP_PTA_ACA 4 /* auto. contingent allegiance */
#define FCP_PTA_MASK 7 /* mask for task attribute field */
#define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */
#define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */
/*
* This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which
* must be called under HW lock and could unlock/lock it inside.
* It isn't an issue, since in the current implementation on the time when
* those functions are called:
*
* - Either context is IRQ and only IRQ handler can modify HW data,
* including rings related fields,
*
* - Or access to target mode variables from struct qla_tgt doesn't
* cross those functions boundaries, except tgt_stop, which
* additionally protected by irq_cmd_count.
*/
/* Predefs for callbacks handed to qla2xxx LLD */
static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha,
struct atio_from_isp *pkt, uint8_t);
static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp,
response_t *pkt);
static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
int fn, void *iocb, int flags);
static void qlt_send_term_exchange(struct qla_qpair *, struct qla_tgt_cmd
*cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort);
static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
struct atio_from_isp *atio, uint16_t status, int qfull);
static void qlt_disable_vha(struct scsi_qla_host *vha);
static void qlt_clear_tgt_db(struct qla_tgt *tgt);
static void qlt_send_notify_ack(struct qla_qpair *qpair,
struct imm_ntfy_from_isp *ntfy,
uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan);
static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *imm, int ha_locked);
static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha,
fc_port_t *fcport, bool local);
void qlt_unreg_sess(struct fc_port *sess);
static void qlt_24xx_handle_abts(struct scsi_qla_host *,
struct abts_recv_from_24xx *);
static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *,
uint16_t);
static int qlt_check_reserve_free_req(struct qla_qpair *qpair, uint32_t);
static inline uint32_t qlt_make_handle(struct qla_qpair *);
/*
* Global Variables
*/
static struct kmem_cache *qla_tgt_mgmt_cmd_cachep;
struct kmem_cache *qla_tgt_plogi_cachep;
static mempool_t *qla_tgt_mgmt_cmd_mempool;
static struct workqueue_struct *qla_tgt_wq;
static DEFINE_MUTEX(qla_tgt_mutex);
static LIST_HEAD(qla_tgt_glist);
static const char *prot_op_str(u32 prot_op)
{
switch (prot_op) {
case TARGET_PROT_NORMAL: return "NORMAL";
case TARGET_PROT_DIN_INSERT: return "DIN_INSERT";
case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT";
case TARGET_PROT_DIN_STRIP: return "DIN_STRIP";
case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP";
case TARGET_PROT_DIN_PASS: return "DIN_PASS";
case TARGET_PROT_DOUT_PASS: return "DOUT_PASS";
default: return "UNKNOWN";
}
}
/* This API intentionally takes dest as a parameter, rather than returning
* int value to avoid caller forgetting to issue wmb() after the store */
void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest)
{
scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
*dest = atomic_inc_return(&base_vha->generation_tick);
/* memory barrier */
wmb();
}
/* Might release hw lock, then reaquire!! */
static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked)
{
/* Send marker if required */
if (unlikely(vha->marker_needed != 0)) {
int rc = qla2x00_issue_marker(vha, vha_locked);
if (rc != QLA_SUCCESS) {
ql_dbg(ql_dbg_tgt, vha, 0xe03d,
"qla_target(%d): issue_marker() failed\n",
vha->vp_idx);
}
return rc;
}
return QLA_SUCCESS;
}
struct scsi_qla_host *qla_find_host_by_d_id(struct scsi_qla_host *vha,
be_id_t d_id)
{
struct scsi_qla_host *host;
uint32_t key;
if (vha->d_id.b.area == d_id.area &&
vha->d_id.b.domain == d_id.domain &&
vha->d_id.b.al_pa == d_id.al_pa)
return vha;
key = be_to_port_id(d_id).b24;
host = btree_lookup32(&vha->hw->host_map, key);
if (!host)
ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
"Unable to find host %06x\n", key);
return host;
}
static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha)
{
unsigned long flags;
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
vha->hw->tgt.num_pend_cmds++;
if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds)
vha->qla_stats.stat_max_pend_cmds =
vha->hw->tgt.num_pend_cmds;
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
}
static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha)
{
unsigned long flags;
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
vha->hw->tgt.num_pend_cmds--;
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
}
static void qlt_queue_unknown_atio(scsi_qla_host_t *vha,
struct atio_from_isp *atio, uint8_t ha_locked)
{
struct qla_tgt_sess_op *u;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
unsigned long flags;
if (tgt->tgt_stop) {
ql_dbg(ql_dbg_async, vha, 0x502c,
"qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped",
vha->vp_idx);
goto out_term;
}
u = kzalloc(sizeof(*u), GFP_ATOMIC);
if (u == NULL)
goto out_term;
u->vha = vha;
memcpy(&u->atio, atio, sizeof(*atio));
INIT_LIST_HEAD(&u->cmd_list);
spin_lock_irqsave(&vha->cmd_list_lock, flags);
list_add_tail(&u->cmd_list, &vha->unknown_atio_list);
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
schedule_delayed_work(&vha->unknown_atio_work, 1);
out:
return;
out_term:
qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0);
goto out;
}
static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
uint8_t ha_locked)
{
struct qla_tgt_sess_op *u, *t;
scsi_qla_host_t *host;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
unsigned long flags;
uint8_t queued = 0;
list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) {
if (u->aborted) {
ql_dbg(ql_dbg_async, vha, 0x502e,
"Freeing unknown %s %p, because of Abort\n",
"ATIO_TYPE7", u);
qlt_send_term_exchange(vha->hw->base_qpair, NULL,
&u->atio, ha_locked, 0);
goto abort;
}
host = qla_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
if (host != NULL) {
ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f,
"Requeuing unknown ATIO_TYPE7 %p\n", u);
qlt_24xx_atio_pkt(host, &u->atio, ha_locked);
} else if (tgt->tgt_stop) {
ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a,
"Freeing unknown %s %p, because tgt is being stopped\n",
"ATIO_TYPE7", u);
qlt_send_term_exchange(vha->hw->base_qpair, NULL,
&u->atio, ha_locked, 0);
} else {
ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
"Reschedule u %p, vha %p, host %p\n", u, vha, host);
if (!queued) {
queued = 1;
schedule_delayed_work(&vha->unknown_atio_work,
1);
}
continue;
}
abort:
spin_lock_irqsave(&vha->cmd_list_lock, flags);
list_del(&u->cmd_list);
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
kfree(u);
}
}
void qlt_unknown_atio_work_fn(struct work_struct *work)
{
struct scsi_qla_host *vha = container_of(to_delayed_work(work),
struct scsi_qla_host, unknown_atio_work);
qlt_try_to_dequeue_unknown_atios(vha, 0);
}
static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha,
struct atio_from_isp *atio, uint8_t ha_locked)
{
ql_dbg(ql_dbg_tgt, vha, 0xe072,
"%s: qla_target(%d): type %x ox_id %04x\n",
__func__, vha->vp_idx, atio->u.raw.entry_type,
be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
switch (atio->u.raw.entry_type) {
case ATIO_TYPE7:
{
struct scsi_qla_host *host = qla_find_host_by_d_id(vha,
atio->u.isp24.fcp_hdr.d_id);
if (unlikely(NULL == host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe03e,
"qla_target(%d): Received ATIO_TYPE7 "
"with unknown d_id %x:%x:%x\n", vha->vp_idx,
atio->u.isp24.fcp_hdr.d_id.domain,
atio->u.isp24.fcp_hdr.d_id.area,
atio->u.isp24.fcp_hdr.d_id.al_pa);
qlt_queue_unknown_atio(vha, atio, ha_locked);
break;
}
if (unlikely(!list_empty(&vha->unknown_atio_list)))
qlt_try_to_dequeue_unknown_atios(vha, ha_locked);
qlt_24xx_atio_pkt(host, atio, ha_locked);
break;
}
case IMMED_NOTIFY_TYPE:
{
struct scsi_qla_host *host = vha;
struct imm_ntfy_from_isp *entry =
(struct imm_ntfy_from_isp *)atio;
qlt_issue_marker(vha, ha_locked);
if ((entry->u.isp24.vp_index != 0xFF) &&
(entry->u.isp24.nport_handle != cpu_to_le16(0xFFFF))) {
host = qla_find_host_by_vp_idx(vha,
entry->u.isp24.vp_index);
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe03f,
"qla_target(%d): Received "
"ATIO (IMMED_NOTIFY_TYPE) "
"with unknown vp_index %d\n",
vha->vp_idx, entry->u.isp24.vp_index);
break;
}
}
qlt_24xx_atio_pkt(host, atio, ha_locked);
break;
}
case VP_RPT_ID_IOCB_TYPE:
qla24xx_report_id_acquisition(vha,
(struct vp_rpt_id_entry_24xx *)atio);
break;
case ABTS_RECV_24XX:
{
struct abts_recv_from_24xx *entry =
(struct abts_recv_from_24xx *)atio;
struct scsi_qla_host *host = qla_find_host_by_vp_idx(vha,
entry->vp_index);
unsigned long flags;
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe00a,
"qla_target(%d): Response pkt (ABTS_RECV_24XX) "
"received, with unknown vp_index %d\n",
vha->vp_idx, entry->vp_index);
break;
}
if (!ha_locked)
spin_lock_irqsave(&host->hw->hardware_lock, flags);
qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio);
if (!ha_locked)
spin_unlock_irqrestore(&host->hw->hardware_lock, flags);
break;
}
/* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */
default:
ql_dbg(ql_dbg_tgt, vha, 0xe040,
"qla_target(%d): Received unknown ATIO atio "
"type %x\n", vha->vp_idx, atio->u.raw.entry_type);
break;
}
return false;
}
void qlt_response_pkt_all_vps(struct scsi_qla_host *vha,
struct rsp_que *rsp, response_t *pkt)
{
switch (pkt->entry_type) {
case CTIO_CRC2:
ql_dbg(ql_dbg_tgt, vha, 0xe073,
"qla_target(%d):%s: CRC2 Response pkt\n",
vha->vp_idx, __func__);
fallthrough;
case CTIO_TYPE7:
{
struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
struct scsi_qla_host *host = qla_find_host_by_vp_idx(vha,
entry->vp_index);
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe041,
"qla_target(%d): Response pkt (CTIO_TYPE7) "
"received, with unknown vp_index %d\n",
vha->vp_idx, entry->vp_index);
break;
}
qlt_response_pkt(host, rsp, pkt);
break;
}
case IMMED_NOTIFY_TYPE:
{
struct scsi_qla_host *host;
struct imm_ntfy_from_isp *entry =
(struct imm_ntfy_from_isp *)pkt;
host = qla_find_host_by_vp_idx(vha, entry->u.isp24.vp_index);
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe042,
"qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) "
"received, with unknown vp_index %d\n",
vha->vp_idx, entry->u.isp24.vp_index);
break;
}
qlt_response_pkt(host, rsp, pkt);
break;
}
case NOTIFY_ACK_TYPE:
{
struct scsi_qla_host *host = vha;
struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
if (0xFF != entry->u.isp24.vp_index) {
host = qla_find_host_by_vp_idx(vha,
entry->u.isp24.vp_index);
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe043,
"qla_target(%d): Response "
"pkt (NOTIFY_ACK_TYPE) "
"received, with unknown "
"vp_index %d\n", vha->vp_idx,
entry->u.isp24.vp_index);
break;
}
}
qlt_response_pkt(host, rsp, pkt);
break;
}
case ABTS_RECV_24XX:
{
struct abts_recv_from_24xx *entry =
(struct abts_recv_from_24xx *)pkt;
struct scsi_qla_host *host = qla_find_host_by_vp_idx(vha,
entry->vp_index);
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe044,
"qla_target(%d): Response pkt "
"(ABTS_RECV_24XX) received, with unknown "
"vp_index %d\n", vha->vp_idx, entry->vp_index);
break;
}
qlt_response_pkt(host, rsp, pkt);
break;
}
case ABTS_RESP_24XX:
{
struct abts_resp_to_24xx *entry =
(struct abts_resp_to_24xx *)pkt;
struct scsi_qla_host *host = qla_find_host_by_vp_idx(vha,
entry->vp_index);
if (unlikely(!host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe045,
"qla_target(%d): Response pkt "
"(ABTS_RECV_24XX) received, with unknown "
"vp_index %d\n", vha->vp_idx, entry->vp_index);
break;
}
qlt_response_pkt(host, rsp, pkt);
break;
}
default:
qlt_response_pkt(vha, rsp, pkt);
break;
}
}
/*
* All qlt_plogi_ack_t operations are protected by hardware_lock
*/
static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport,
struct imm_ntfy_from_isp *ntfy, int type)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_NACK);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.nack.fcport = fcport;
e->u.nack.type = type;
memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp));
return qla2x00_post_work(vha, e);
}
static void qla2x00_async_nack_sp_done(srb_t *sp, int res)
{
struct scsi_qla_host *vha = sp->vha;
unsigned long flags;
ql_dbg(ql_dbg_disc, vha, 0x20f2,
"Async done-%s res %x %8phC type %d\n",
sp->name, res, sp->fcport->port_name, sp->type);
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
sp->fcport->flags &= ~FCF_ASYNC_SENT;
sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
switch (sp->type) {
case SRB_NACK_PLOGI:
sp->fcport->login_gen++;
sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
sp->fcport->logout_on_delete = 1;
sp->fcport->plogi_nack_done_deadline = jiffies + HZ;
sp->fcport->send_els_logo = 0;
if (sp->fcport->flags & FCF_FCSP_DEVICE) {
ql_dbg(ql_dbg_edif, vha, 0x20ef,
"%s %8phC edif: PLOGI- AUTH WAIT\n", __func__,
sp->fcport->port_name);
qla2x00_set_fcport_disc_state(sp->fcport,
DSC_LOGIN_AUTH_PEND);
qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
sp->fcport->d_id.b24);
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_NEEDED, sp->fcport->d_id.b24,
0, sp->fcport);
}
break;
case SRB_NACK_PRLI:
sp->fcport->fw_login_state = DSC_LS_PRLI_COMP;
sp->fcport->deleted = 0;
sp->fcport->send_els_logo = 0;
if (!sp->fcport->login_succ &&
!IS_SW_RESV_ADDR(sp->fcport->d_id)) {
sp->fcport->login_succ = 1;
vha->fcport_count++;
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
qla24xx_sched_upd_fcport(sp->fcport);
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
} else {
sp->fcport->login_retry = 0;
qla2x00_set_fcport_disc_state(sp->fcport,
DSC_LOGIN_COMPLETE);
sp->fcport->deleted = 0;
sp->fcport->logout_on_delete = 1;
}
break;
case SRB_NACK_LOGO:
sp->fcport->login_gen++;
sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE);
break;
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport,
struct imm_ntfy_from_isp *ntfy, int type)
{
int rval = QLA_FUNCTION_FAILED;
srb_t *sp;
char *c = NULL;
fcport->flags |= FCF_ASYNC_SENT;
switch (type) {
case SRB_NACK_PLOGI:
fcport->fw_login_state = DSC_LS_PLOGI_PEND;
c = "PLOGI";
if (vha->hw->flags.edif_enabled &&
(le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP))
fcport->flags |= FCF_FCSP_DEVICE;
break;
case SRB_NACK_PRLI:
fcport->fw_login_state = DSC_LS_PRLI_PEND;
fcport->deleted = 0;
c = "PRLI";
break;
case SRB_NACK_LOGO:
fcport->fw_login_state = DSC_LS_LOGO_PEND;
c = "LOGO";
break;
}
sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
if (!sp)
goto done;
sp->type = type;
sp->name = "nack";
qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
qla2x00_async_nack_sp_done);
sp->u.iocb_cmd.u.nack.ntfy = ntfy;
ql_dbg(ql_dbg_disc, vha, 0x20f4,
"Async-%s %8phC hndl %x %s\n",
sp->name, fcport->port_name, sp->handle, c);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
return rval;
done_free_sp:
kref_put(&sp->cmd_kref, qla2x00_sp_release);
done:
fcport->flags &= ~FCF_ASYNC_SENT;
return rval;
}
void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
{
fc_port_t *t;
switch (e->u.nack.type) {
case SRB_NACK_PRLI:
t = e->u.nack.fcport;
flush_work(&t->del_work);
flush_work(&t->free_work);
mutex_lock(&vha->vha_tgt.tgt_mutex);
t = qlt_create_sess(vha, e->u.nack.fcport, 0);
mutex_unlock(&vha->vha_tgt.tgt_mutex);
if (t) {
ql_log(ql_log_info, vha, 0xd034,
"%s create sess success %p", __func__, t);
/* create sess has an extra kref */
vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport);
}
break;
}
qla24xx_async_notify_ack(vha, e->u.nack.fcport,
(struct imm_ntfy_from_isp *)e->u.nack.iocb, e->u.nack.type);
}
void qla24xx_delete_sess_fn(struct work_struct *work)
{
fc_port_t *fcport = container_of(work, struct fc_port, del_work);
struct qla_hw_data *ha = NULL;
if (!fcport || !fcport->vha || !fcport->vha->hw)
return;
ha = fcport->vha->hw;
if (fcport->se_sess) {
ha->tgt.tgt_ops->shutdown_sess(fcport);
ha->tgt.tgt_ops->put_sess(fcport);
} else {
qlt_unreg_sess(fcport);
}
}
/*
* Called from qla2x00_reg_remote_port()
*/
void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct fc_port *sess = fcport;
unsigned long flags;
if (!vha->hw->tgt.tgt_ops)
return;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
if (tgt->tgt_stop) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
}
if (fcport->disc_state == DSC_DELETE_PEND) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
}
if (!sess->se_sess) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
mutex_lock(&vha->vha_tgt.tgt_mutex);
sess = qlt_create_sess(vha, fcport, false);
mutex_unlock(&vha->vha_tgt.tgt_mutex);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
} else {
if (fcport->fw_login_state == DSC_LS_PRLI_COMP) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
}
if (!kref_get_unless_zero(&sess->sess_kref)) {
ql_dbg(ql_dbg_disc, vha, 0x2107,
"%s: kref_get fail sess %8phC \n",
__func__, sess->port_name);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c,
"qla_target(%u): %ssession for port %8phC "
"(loop ID %d) reappeared\n", vha->vp_idx,
sess->local ? "local " : "", sess->port_name, sess->loop_id);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007,
"Reappeared sess %p\n", sess);
ha->tgt.tgt_ops->update_sess(sess, fcport->d_id,
fcport->loop_id,
(fcport->flags & FCF_CONF_COMP_SUPPORTED));
}
if (sess && sess->local) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d,
"qla_target(%u): local session for "
"port %8phC (loop ID %d) became global\n", vha->vp_idx,
fcport->port_name, sess->loop_id);
sess->local = 0;
}
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
ha->tgt.tgt_ops->put_sess(sess);
}
/*
* This is a zero-base ref-counting solution, since hardware_lock
* guarantees that ref_count is not modified concurrently.
* Upon successful return content of iocb is undefined
*/
static struct qlt_plogi_ack_t *
qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id,
struct imm_ntfy_from_isp *iocb)
{
struct qlt_plogi_ack_t *pla;
lockdep_assert_held(&vha->hw->hardware_lock);
list_for_each_entry(pla, &vha->plogi_ack_list, list) {
if (pla->id.b24 == id->b24) {
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x210d,
"%s %d %8phC Term INOT due to new INOT",
__func__, __LINE__,
pla->iocb.u.isp24.port_name);
qlt_send_term_imm_notif(vha, &pla->iocb, 1);
memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
return pla;
}
}
pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC);
if (!pla) {
ql_dbg(ql_dbg_async, vha, 0x5088,
"qla_target(%d): Allocation of plogi_ack failed\n",
vha->vp_idx);
return NULL;
}
memcpy(&pla->iocb, iocb, sizeof(pla->iocb));
pla->id = *id;
list_add_tail(&pla->list, &vha->plogi_ack_list);
return pla;
}
void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
struct qlt_plogi_ack_t *pla)
{
struct imm_ntfy_from_isp *iocb = &pla->iocb;
port_id_t port_id;
uint16_t loop_id;
fc_port_t *fcport = pla->fcport;
BUG_ON(!pla->ref_count);
pla->ref_count--;
if (pla->ref_count)
return;
ql_dbg(ql_dbg_disc, vha, 0x5089,
"Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x"
" exch %#x ox_id %#x\n", iocb->u.isp24.port_name,
iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1],
iocb->u.isp24.port_id[0],
le16_to_cpu(iocb->u.isp24.nport_handle),
iocb->u.isp24.exchange_address, iocb->ox_id);
port_id.b.domain = iocb->u.isp24.port_id[2];
port_id.b.area = iocb->u.isp24.port_id[1];
port_id.b.al_pa = iocb->u.isp24.port_id[0];
port_id.b.rsvd_1 = 0;
loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
fcport->loop_id = loop_id;
fcport->d_id = port_id;
if (iocb->u.isp24.status_subcode == ELS_PLOGI)
qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI);
else
qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla)
fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla)
fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
}
list_del(&pla->list);
kmem_cache_free(qla_tgt_plogi_cachep, pla);
}
void
qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla,
struct fc_port *sess, enum qlt_plogi_link_t link)
{
struct imm_ntfy_from_isp *iocb = &pla->iocb;
/* Inc ref_count first because link might already be pointing at pla */
pla->ref_count++;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097,
"Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC"
" s_id %02x:%02x:%02x, ref=%d pla %p link %d\n",
sess, link, sess->port_name,
iocb->u.isp24.port_name, iocb->u.isp24.port_id[2],
iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
pla->ref_count, pla, link);
if (link == QLT_PLOGI_LINK_CONFLICT) {
switch (sess->disc_state) {
case DSC_DELETED:
case DSC_DELETE_PEND:
pla->ref_count--;
return;
default:
break;
}
}
if (sess->plogi_link[link])
qlt_plogi_ack_unref(vha, sess->plogi_link[link]);
if (link == QLT_PLOGI_LINK_SAME_WWN)
pla->fcport = sess;
sess->plogi_link[link] = pla;
}
typedef struct {
/* These fields must be initialized by the caller */
port_id_t id;
/*
* number of cmds dropped while we were waiting for
* initiator to ack LOGO initialize to 1 if LOGO is
* triggered by a command, otherwise, to 0
*/
int cmd_count;
/* These fields are used by callee */
struct list_head list;
} qlt_port_logo_t;
static void
qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo)
{
qlt_port_logo_t *tmp;
int res;
if (test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags)) {
res = 0;
goto out;
}
mutex_lock(&vha->vha_tgt.tgt_mutex);
list_for_each_entry(tmp, &vha->logo_list, list) {
if (tmp->id.b24 == logo->id.b24) {
tmp->cmd_count += logo->cmd_count;
mutex_unlock(&vha->vha_tgt.tgt_mutex);
return;
}
}
list_add_tail(&logo->list, &vha->logo_list);
mutex_unlock(&vha->vha_tgt.tgt_mutex);
res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id);
mutex_lock(&vha->vha_tgt.tgt_mutex);
list_del(&logo->list);
mutex_unlock(&vha->vha_tgt.tgt_mutex);
out:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098,
"Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n",
logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa,
logo->cmd_count, res);
}
void qlt_free_session_done(struct work_struct *work)
{
struct fc_port *sess = container_of(work, struct fc_port,
free_work);
struct qla_tgt *tgt = sess->tgt;
struct scsi_qla_host *vha = sess->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
bool logout_started = false;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
struct qlt_plogi_ack_t *own =
sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
ql_dbg(ql_dbg_disc, vha, 0xf084,
"%s: se_sess %p / sess %p from port %8phC loop_id %#04x"
" s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n",
__func__, sess->se_sess, sess, sess->port_name, sess->loop_id,
sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa,
sess->logout_on_delete, sess->keep_nport_handle,
sess->send_els_logo);
if (!IS_SW_RESV_ADDR(sess->d_id)) {
qla2x00_mark_device_lost(vha, sess, 0);
if (sess->send_els_logo) {
qlt_port_logo_t logo;
logo.id = sess->d_id;
logo.cmd_count = 0;
INIT_LIST_HEAD(&logo.list);
if (!own)
qlt_send_first_logo(vha, &logo);
sess->send_els_logo = 0;
}
if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
int rc;
if (!own ||
(own->iocb.u.isp24.status_subcode == ELS_PLOGI)) {
sess->logout_completed = 0;
rc = qla2x00_post_async_logout_work(vha, sess,
NULL);
if (rc != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0xf085,
"Schedule logo failed sess %p rc %d\n",
sess, rc);
else
logout_started = true;
} else if (own && (own->iocb.u.isp24.status_subcode ==
ELS_PRLI) && ha->flags.rida_fmt2) {
rc = qla2x00_post_async_prlo_work(vha, sess,
NULL);
if (rc != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0xf085,
"Schedule PRLO failed sess %p rc %d\n",
sess, rc);
else
logout_started = true;
}
} /* if sess->logout_on_delete */
if (sess->nvme_flag & NVME_FLAG_REGISTERED &&
!(sess->nvme_flag & NVME_FLAG_DELETING)) {
sess->nvme_flag |= NVME_FLAG_DELETING;
qla_nvme_unregister_remote_port(sess);
}
if (ha->flags.edif_enabled &&
(!own || own->iocb.u.isp24.status_subcode == ELS_PLOGI)) {
sess->edif.authok = 0;
if (!ha->flags.host_shutting_down) {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s wwpn %8phC calling qla2x00_release_all_sadb\n",
__func__, sess->port_name);
qla2x00_release_all_sadb(vha, sess);
} else {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s bypassing release_all_sadb\n",
__func__);
}
qla_edif_clear_appdata(vha, sess);
qla_edif_sess_down(vha, sess);
}
}
/*
* Release the target session for FC Nexus from fabric module code.
*/
if (sess->se_sess != NULL)
ha->tgt.tgt_ops->free_session(sess);
if (logout_started) {
bool traced = false;
u16 cnt = 0;
while (!READ_ONCE(sess->logout_completed)) {
if (!traced) {
ql_dbg(ql_dbg_disc, vha, 0xf086,
"%s: waiting for sess %p logout\n",
__func__, sess);
traced = true;
}
msleep(100);
cnt++;
/*
* Driver timeout is set to 22 Sec, update count value to loop
* long enough for log-out to complete before advancing. Otherwise,
* straddling logout can interfere with re-login attempt.
*/
if (cnt > 230)
break;
}
ql_dbg(ql_dbg_disc, vha, 0xf087,
"%s: sess %p logout completed\n", __func__, sess);
}
if (sess->logo_ack_needed) {
sess->logo_ack_needed = 0;
qla24xx_async_notify_ack(vha, sess,
(struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO);
}
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
if (sess->se_sess) {
sess->se_sess = NULL;
if (tgt && !IS_SW_RESV_ADDR(sess->d_id))
tgt->sess_count--;
}
qla2x00_set_fcport_disc_state(sess, DSC_DELETED);
sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) {
vha->fcport_count--;
sess->login_succ = 0;
}
qla2x00_clear_loop_id(sess);
if (sess->conflict) {
sess->conflict->login_pause = 0;
sess->conflict = NULL;
if (!test_bit(UNLOADING, &vha->dpc_flags))
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
}
{
struct qlt_plogi_ack_t *con =
sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
struct imm_ntfy_from_isp *iocb;
own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
if (con) {
iocb = &con->iocb;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099,
"se_sess %p / sess %p port %8phC is gone,"
" %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n",
sess->se_sess, sess, sess->port_name,
own ? "releasing own PLOGI" : "no own PLOGI pending",
own ? own->ref_count : -1,
iocb->u.isp24.port_name, con->ref_count);
qlt_plogi_ack_unref(vha, con);
sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL;
} else {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a,
"se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n",
sess->se_sess, sess, sess->port_name,
own ? "releasing own PLOGI" :
"no own PLOGI pending",
own ? own->ref_count : -1);
}
if (own) {
sess->fw_login_state = DSC_LS_PLOGI_PEND;
qlt_plogi_ack_unref(vha, own);
sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
}
}
sess->explicit_logout = 0;
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
qla2x00_dfs_remove_rport(vha, sess);
spin_lock_irqsave(&vha->work_lock, flags);
sess->flags &= ~FCF_ASYNC_SENT;
sess->deleted = QLA_SESS_DELETED;
sess->free_pending = 0;
spin_unlock_irqrestore(&vha->work_lock, flags);
ql_dbg(ql_dbg_disc, vha, 0xf001,
"Unregistration of sess %p %8phC finished fcp_cnt %d\n",
sess, sess->port_name, vha->fcport_count);
if (tgt && (tgt->sess_count == 0))
wake_up_all(&tgt->waitQ);
if (!test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags) &&
!(vha->vp_idx && test_bit(VPORT_DELETE, &vha->dpc_flags)) &&
(!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) {
switch (vha->host->active_mode) {
case MODE_INITIATOR:
case MODE_DUAL:
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
break;
case MODE_TARGET:
default:
/* no-op */
break;
}
}
if (vha->fcport_count == 0)
wake_up_all(&vha->fcport_waitQ);
}
/* ha->tgt.sess_lock supposed to be held on entry */
void qlt_unreg_sess(struct fc_port *sess)
{
struct scsi_qla_host *vha = sess->vha;
unsigned long flags;
ql_dbg(ql_dbg_disc, sess->vha, 0x210a,
"%s sess %p for deletion %8phC\n",
__func__, sess, sess->port_name);
spin_lock_irqsave(&sess->vha->work_lock, flags);
if (sess->free_pending) {
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
return;
}
sess->free_pending = 1;
/*
* Use FCF_ASYNC_SENT flag to block other cmds used in sess
* management from being sent.
*/
sess->flags |= FCF_ASYNC_SENT;
sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
if (sess->se_sess)
vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
sess->last_rscn_gen = sess->rscn_gen;
sess->last_login_gen = sess->login_gen;
queue_work(sess->vha->hw->wq, &sess->free_work);
}
EXPORT_SYMBOL(qlt_unreg_sess);
static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd)
{
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess = NULL;
uint16_t loop_id;
int res = 0;
struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb;
unsigned long flags;
loop_id = le16_to_cpu(n->u.isp24.nport_handle);
if (loop_id == 0xFFFF) {
/* Global event */
atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
qlt_clear_tgt_db(vha->vha_tgt.qla_tgt);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
} else {
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
ql_dbg(ql_dbg_tgt, vha, 0xe000,
"Using sess for qla_tgt_reset: %p\n", sess);
if (!sess) {
res = -ESRCH;
return res;
}
ql_dbg(ql_dbg_tgt, vha, 0xe047,
"scsi(%ld): resetting (session %p from port %8phC mcmd %x, "
"loop_id %d)\n", vha->host_no, sess, sess->port_name,
mcmd, loop_id);
return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK);
}
static void qla24xx_chk_fcp_state(struct fc_port *sess)
{
if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) {
sess->logout_on_delete = 0;
sess->logo_ack_needed = 0;
sess->fw_login_state = DSC_LS_PORT_UNAVAIL;
}
}
void qlt_schedule_sess_for_deletion(struct fc_port *sess)
{
struct qla_tgt *tgt = sess->tgt;
unsigned long flags;
u16 sec;
switch (sess->disc_state) {
case DSC_DELETE_PEND:
return;
case DSC_DELETED:
if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
!sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) {
if (tgt && tgt->tgt_stop && tgt->sess_count == 0)
wake_up_all(&tgt->waitQ);
if (sess->vha->fcport_count == 0)
wake_up_all(&sess->vha->fcport_waitQ);
return;
}
break;
case DSC_UPD_FCPORT:
/*
* This port is not done reporting to upper layer.
* let it finish
*/
sess->next_disc_state = DSC_DELETE_PEND;
sec = jiffies_to_msecs(jiffies -
sess->jiffies_at_registration)/1000;
if (sess->sec_since_registration < sec && sec && !(sec % 5)) {
sess->sec_since_registration = sec;
ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
"%s %8phC : Slow Rport registration(%d Sec)\n",
__func__, sess->port_name, sec);
}
return;
default:
break;
}
spin_lock_irqsave(&sess->vha->work_lock, flags);
if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
return;
}
sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
spin_unlock_irqrestore(&sess->vha->work_lock, flags);
sess->prli_pend_timer = 0;
qla2x00_set_fcport_disc_state(sess, DSC_DELETE_PEND);
qla24xx_chk_fcp_state(sess);
ql_dbg(ql_log_warn, sess->vha, 0xe001,
"Scheduling sess %p for deletion %8phC fc4_type %x\n",
sess, sess->port_name, sess->fc4_type);
WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work));
}
static void qlt_clear_tgt_db(struct qla_tgt *tgt)
{
struct fc_port *sess;
scsi_qla_host_t *vha = tgt->vha;
list_for_each_entry(sess, &vha->vp_fcports, list) {
if (sess->se_sess)
qlt_schedule_sess_for_deletion(sess);
}
/* At this point tgt could be already dead */
}
static int qla24xx_get_loop_id(struct scsi_qla_host *vha, be_id_t s_id,
uint16_t *loop_id)
{
struct qla_hw_data *ha = vha->hw;
dma_addr_t gid_list_dma;
struct gid_list_info *gid_list, *gid;
int res, rc, i;
uint16_t entries;
gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
&gid_list_dma, GFP_KERNEL);
if (!gid_list) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044,
"qla_target(%d): DMA Alloc failed of %u\n",
vha->vp_idx, qla2x00_gid_list_size(ha));
return -ENOMEM;
}
/* Get list of logged in devices */
rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries);
if (rc != QLA_SUCCESS) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045,
"qla_target(%d): get_id_list() failed: %x\n",
vha->vp_idx, rc);
res = -EBUSY;
goto out_free_id_list;
}
gid = gid_list;
res = -ENOENT;
for (i = 0; i < entries; i++) {
if (gid->al_pa == s_id.al_pa &&
gid->area == s_id.area &&
gid->domain == s_id.domain) {
*loop_id = le16_to_cpu(gid->loop_id);
res = 0;
break;
}
gid = (void *)gid + ha->gid_list_info_size;
}
out_free_id_list:
dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
gid_list, gid_list_dma);
return res;
}
/*
* Adds an extra ref to allow to drop hw lock after adding sess to the list.
* Caller must put it.
*/
static struct fc_port *qlt_create_sess(
struct scsi_qla_host *vha,
fc_port_t *fcport,
bool local)
{
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess = fcport;
unsigned long flags;
if (vha->vha_tgt.qla_tgt->tgt_stop)
return NULL;
if (fcport->se_sess) {
if (!kref_get_unless_zero(&sess->sess_kref)) {
ql_dbg(ql_dbg_disc, vha, 0x20f6,
"%s: kref_get_unless_zero failed for %8phC\n",
__func__, sess->port_name);
return NULL;
}
return fcport;
}
sess->tgt = vha->vha_tgt.qla_tgt;
sess->local = local;
/*
* Under normal circumstances we want to logout from firmware when
* session eventually ends and release corresponding nport handle.
* In the exception cases (e.g. when new PLOGI is waiting) corresponding
* code will adjust these flags as necessary.
*/
sess->logout_on_delete = 1;
sess->keep_nport_handle = 0;
sess->logout_completed = 0;
if (ha->tgt.tgt_ops->check_initiator_node_acl(vha,
&fcport->port_name[0], sess) < 0) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015,
"(%d) %8phC check_initiator_node_acl failed\n",
vha->vp_idx, fcport->port_name);
return NULL;
} else {
kref_init(&fcport->sess_kref);
/*
* Take an extra reference to ->sess_kref here to handle
* fc_port access across ->tgt.sess_lock reaquire.
*/
if (!kref_get_unless_zero(&sess->sess_kref)) {
ql_dbg(ql_dbg_disc, vha, 0x20f7,
"%s: kref_get_unless_zero failed for %8phC\n",
__func__, sess->port_name);
return NULL;
}
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
if (!IS_SW_RESV_ADDR(sess->d_id))
vha->vha_tgt.qla_tgt->sess_count++;
qlt_do_generation_tick(vha, &sess->generation);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006,
"Adding sess %p se_sess %p to tgt %p sess_count %d\n",
sess, sess->se_sess, vha->vha_tgt.qla_tgt,
vha->vha_tgt.qla_tgt->sess_count);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b,
"qla_target(%d): %ssession for wwn %8phC (loop_id %d, "
"s_id %x:%x:%x, confirmed completion %ssupported) added\n",
vha->vp_idx, local ? "local " : "", fcport->port_name,
fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area,
sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not ");
return sess;
}
/*
* max_gen - specifies maximum session generation
* at which this deletion requestion is still valid
*/
void
qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct fc_port *sess = fcport;
unsigned long flags;
if (!vha->hw->tgt.tgt_ops)
return;
if (!tgt)
return;
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
if (tgt->tgt_stop) {
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
return;
}
if (!sess->se_sess) {
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
return;
}
if (max_gen - sess->generation < 0) {
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092,
"Ignoring stale deletion request for se_sess %p / sess %p"
" for port %8phC, req_gen %d, sess_gen %d\n",
sess->se_sess, sess, sess->port_name, max_gen,
sess->generation);
return;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
sess->local = 1;
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
qlt_schedule_sess_for_deletion(sess);
}
static inline int test_tgt_sess_count(struct qla_tgt *tgt)
{
struct qla_hw_data *ha = tgt->ha;
unsigned long flags;
int res;
/*
* We need to protect against race, when tgt is freed before or
* inside wake_up()
*/
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002,
"tgt %p, sess_count=%d\n",
tgt, tgt->sess_count);
res = (tgt->sess_count == 0);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return res;
}
/* Called by tcm_qla2xxx configfs code */
int qlt_stop_phase1(struct qla_tgt *tgt)
{
struct scsi_qla_host *vha = tgt->vha;
struct qla_hw_data *ha = tgt->ha;
unsigned long flags;
mutex_lock(&ha->optrom_mutex);
mutex_lock(&qla_tgt_mutex);
if (tgt->tgt_stop || tgt->tgt_stopped) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e,
"Already in tgt->tgt_stop or tgt_stopped state\n");
mutex_unlock(&qla_tgt_mutex);
mutex_unlock(&ha->optrom_mutex);
return -EPERM;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n",
vha->host_no, vha);
/*
* Mutex needed to sync with qla_tgt_fc_port_[added,deleted].
* Lock is needed, because we still can get an incoming packet.
*/
mutex_lock(&vha->vha_tgt.tgt_mutex);
tgt->tgt_stop = 1;
qlt_clear_tgt_db(tgt);
mutex_unlock(&vha->vha_tgt.tgt_mutex);
mutex_unlock(&qla_tgt_mutex);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
"Waiting for sess works (tgt %p)", tgt);
spin_lock_irqsave(&tgt->sess_work_lock, flags);
do {
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
flush_work(&tgt->sess_work);
spin_lock_irqsave(&tgt->sess_work_lock, flags);
} while (!list_empty(&tgt->sess_works_list));
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
"Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count);
wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
/* Big hammer */
if (!ha->flags.host_shutting_down &&
(qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)))
qlt_disable_vha(vha);
/* Wait for sessions to clear out (just in case) */
wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ);
mutex_unlock(&ha->optrom_mutex);
return 0;
}
EXPORT_SYMBOL(qlt_stop_phase1);
/* Called by tcm_qla2xxx configfs code */
void qlt_stop_phase2(struct qla_tgt *tgt)
{
scsi_qla_host_t *vha = tgt->vha;
if (tgt->tgt_stopped) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f,
"Already in tgt->tgt_stopped state\n");
dump_stack();
return;
}
if (!tgt->tgt_stop) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b,
"%s: phase1 stop is not completed\n", __func__);
dump_stack();
return;
}
mutex_lock(&tgt->ha->optrom_mutex);
mutex_lock(&vha->vha_tgt.tgt_mutex);
tgt->tgt_stop = 0;
tgt->tgt_stopped = 1;
mutex_unlock(&vha->vha_tgt.tgt_mutex);
mutex_unlock(&tgt->ha->optrom_mutex);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n",
tgt);
switch (vha->qlini_mode) {
case QLA2XXX_INI_MODE_EXCLUSIVE:
vha->flags.online = 1;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
default:
break;
}
}
EXPORT_SYMBOL(qlt_stop_phase2);
/* Called from qlt_remove_target() -> qla2x00_remove_one() */
static void qlt_release(struct qla_tgt *tgt)
{
scsi_qla_host_t *vha = tgt->vha;
void *node;
u64 key = 0;
u16 i;
struct qla_qpair_hint *h;
struct qla_hw_data *ha = vha->hw;
if (!tgt->tgt_stop && !tgt->tgt_stopped)
qlt_stop_phase1(tgt);
if (!tgt->tgt_stopped)
qlt_stop_phase2(tgt);
for (i = 0; i < vha->hw->max_qpairs + 1; i++) {
unsigned long flags;
h = &tgt->qphints[i];
if (h->qpair) {
spin_lock_irqsave(h->qpair->qp_lock_ptr, flags);
list_del(&h->hint_elem);
spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags);
h->qpair = NULL;
}
}
kfree(tgt->qphints);
mutex_lock(&qla_tgt_mutex);
list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
mutex_unlock(&qla_tgt_mutex);
btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
btree_remove64(&tgt->lun_qpair_map, key);
btree_destroy64(&tgt->lun_qpair_map);
if (vha->vp_idx)
if (ha->tgt.tgt_ops &&
ha->tgt.tgt_ops->remove_target &&
vha->vha_tgt.target_lport_ptr)
ha->tgt.tgt_ops->remove_target(vha);
vha->vha_tgt.qla_tgt = NULL;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
"Release of tgt %p finished\n", tgt);
kfree(tgt);
}
/* ha->hardware_lock supposed to be held on entry */
static int qlt_sched_sess_work(struct qla_tgt *tgt, int type,
const void *param, unsigned int param_size)
{
struct qla_tgt_sess_work_param *prm;
unsigned long flags;
prm = kzalloc(sizeof(*prm), GFP_ATOMIC);
if (!prm) {
ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050,
"qla_target(%d): Unable to create session "
"work, command will be refused", 0);
return -ENOMEM;
}
ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e,
"Scheduling work (type %d, prm %p)"
" to find session for param %p (size %d, tgt %p)\n",
type, prm, param, param_size, tgt);
prm->type = type;
memcpy(&prm->tm_iocb, param, param_size);
spin_lock_irqsave(&tgt->sess_work_lock, flags);
list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list);
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
schedule_work(&tgt->sess_work);
return 0;
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static void qlt_send_notify_ack(struct qla_qpair *qpair,
struct imm_ntfy_from_isp *ntfy,
uint32_t add_flags, uint16_t resp_code, int resp_code_valid,
uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan)
{
struct scsi_qla_host *vha = qpair->vha;
struct qla_hw_data *ha = vha->hw;
request_t *pkt;
struct nack_to_isp *nack;
if (!ha->flags.fw_started)
return;
ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha);
pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
if (!pkt) {
ql_dbg(ql_dbg_tgt, vha, 0xe049,
"qla_target(%d): %s failed: unable to allocate "
"request packet\n", vha->vp_idx, __func__);
return;
}
if (vha->vha_tgt.qla_tgt != NULL)
vha->vha_tgt.qla_tgt->notify_ack_expected++;
pkt->entry_type = NOTIFY_ACK_TYPE;
pkt->entry_count = 1;
nack = (struct nack_to_isp *)pkt;
nack->ox_id = ntfy->ox_id;
nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE;
nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
nack->u.isp24.flags = ntfy->u.isp24.flags &
cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
}
nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
nack->u.isp24.status = ntfy->u.isp24.status;
nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
nack->u.isp24.srr_flags = cpu_to_le16(srr_flags);
nack->u.isp24.srr_reject_code = srr_reject_code;
nack->u.isp24.srr_reject_code_expl = srr_explan;
nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
/* TODO qualify this with EDIF enable */
if (ntfy->u.isp24.status_subcode == ELS_PLOGI &&
(le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP);
}
ql_dbg(ql_dbg_tgt, vha, 0xe005,
"qla_target(%d): Sending 24xx Notify Ack %d\n",
vha->vp_idx, nack->u.isp24.status);
/* Memory Barrier */
wmb();
qla2x00_start_iocbs(vha, qpair->req);
}
static int qlt_build_abts_resp_iocb(struct qla_tgt_mgmt_cmd *mcmd)
{
struct scsi_qla_host *vha = mcmd->vha;
struct qla_hw_data *ha = vha->hw;
struct abts_resp_to_24xx *resp;
__le32 f_ctl;
uint32_t h;
uint8_t *p;
int rc;
struct abts_recv_from_24xx *abts = &mcmd->orig_iocb.abts;
struct qla_qpair *qpair = mcmd->qpair;
ql_dbg(ql_dbg_tgt, vha, 0xe006,
"Sending task mgmt ABTS response (ha=%p, status=%x)\n",
ha, mcmd->fc_tm_rsp);
rc = qlt_check_reserve_free_req(qpair, 1);
if (rc) {
ql_dbg(ql_dbg_tgt, vha, 0xe04a,
"qla_target(%d): %s failed: unable to allocate request packet\n",
vha->vp_idx, __func__);
return -EAGAIN;
}
resp = (struct abts_resp_to_24xx *)qpair->req->ring_ptr;
memset(resp, 0, sizeof(*resp));
h = qlt_make_handle(qpair);
if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
/*
* CTIO type 7 from the firmware doesn't provide a way to
* know the initiator's LOOP ID, hence we can't find
* the session and, so, the command.
*/
return -EAGAIN;
} else {
qpair->req->outstanding_cmds[h] = (srb_t *)mcmd;
}
resp->handle = make_handle(qpair->req->id, h);
resp->entry_type = ABTS_RESP_24XX;
resp->entry_count = 1;
resp->nport_handle = abts->nport_handle;
resp->vp_index = vha->vp_idx;
resp->sof_type = abts->sof_type;
resp->exchange_address = abts->exchange_address;
resp->fcp_hdr_le = abts->fcp_hdr_le;
f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
F_CTL_LAST_SEQ | F_CTL_END_SEQ |
F_CTL_SEQ_INITIATIVE);
p = (uint8_t *)&f_ctl;
resp->fcp_hdr_le.f_ctl[0] = *p++;
resp->fcp_hdr_le.f_ctl[1] = *p++;
resp->fcp_hdr_le.f_ctl[2] = *p;
resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
if (mcmd->fc_tm_rsp == FCP_TMF_CMPL) {
resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
resp->payload.ba_acct.low_seq_cnt = 0x0000;
resp->payload.ba_acct.high_seq_cnt = cpu_to_le16(0xFFFF);
resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
} else {
resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
resp->payload.ba_rjt.reason_code =
BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
/* Other bytes are zero */
}
vha->vha_tgt.qla_tgt->abts_resp_expected++;
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
return rc;
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair,
struct abts_recv_from_24xx *abts, uint32_t status,
bool ids_reversed)
{
struct scsi_qla_host *vha = qpair->vha;
struct qla_hw_data *ha = vha->hw;
struct abts_resp_to_24xx *resp;
__le32 f_ctl;
uint8_t *p;
ql_dbg(ql_dbg_tgt, vha, 0xe006,
"Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n",
ha, abts, status);
resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair,
NULL);
if (!resp) {
ql_dbg(ql_dbg_tgt, vha, 0xe04a,
"qla_target(%d): %s failed: unable to allocate "
"request packet", vha->vp_idx, __func__);
return;
}
resp->entry_type = ABTS_RESP_24XX;
resp->handle = QLA_TGT_SKIP_HANDLE;
resp->entry_count = 1;
resp->nport_handle = abts->nport_handle;
resp->vp_index = vha->vp_idx;
resp->sof_type = abts->sof_type;
resp->exchange_address = abts->exchange_address;
resp->fcp_hdr_le = abts->fcp_hdr_le;
f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP |
F_CTL_LAST_SEQ | F_CTL_END_SEQ |
F_CTL_SEQ_INITIATIVE);
p = (uint8_t *)&f_ctl;
resp->fcp_hdr_le.f_ctl[0] = *p++;
resp->fcp_hdr_le.f_ctl[1] = *p++;
resp->fcp_hdr_le.f_ctl[2] = *p;
if (ids_reversed) {
resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.d_id;
resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.s_id;
} else {
resp->fcp_hdr_le.d_id = abts->fcp_hdr_le.s_id;
resp->fcp_hdr_le.s_id = abts->fcp_hdr_le.d_id;
}
resp->exchange_addr_to_abort = abts->exchange_addr_to_abort;
if (status == FCP_TMF_CMPL) {
resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC;
resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID;
resp->payload.ba_acct.low_seq_cnt = 0x0000;
resp->payload.ba_acct.high_seq_cnt = cpu_to_le16(0xFFFF);
resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id;
resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id;
} else {
resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT;
resp->payload.ba_rjt.reason_code =
BA_RJT_REASON_CODE_UNABLE_TO_PERFORM;
/* Other bytes are zero */
}
vha->vha_tgt.qla_tgt->abts_resp_expected++;
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha,
struct qla_qpair *qpair, response_t *pkt, struct qla_tgt_mgmt_cmd *mcmd)
{
struct ctio7_to_24xx *ctio;
u16 tmp;
struct abts_recv_from_24xx *entry;
ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, NULL);
if (ctio == NULL) {
ql_dbg(ql_dbg_tgt, vha, 0xe04b,
"qla_target(%d): %s failed: unable to allocate "
"request packet\n", vha->vp_idx, __func__);
return;
}
if (mcmd)
/* abts from remote port */
entry = &mcmd->orig_iocb.abts;
else
/* abts from this driver. */
entry = (struct abts_recv_from_24xx *)pkt;
/*
* We've got on entrance firmware's response on by us generated
* ABTS response. So, in it ID fields are reversed.
*/
ctio->entry_type = CTIO_TYPE7;
ctio->entry_count = 1;
ctio->nport_handle = entry->nport_handle;
ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio->vp_index = vha->vp_idx;
ctio->exchange_addr = entry->exchange_addr_to_abort;
tmp = (CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE);
if (mcmd) {
ctio->initiator_id = entry->fcp_hdr_le.s_id;
if (mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID)
tmp |= (mcmd->abort_io_attr << 9);
else if (qpair->retry_term_cnt & 1)
tmp |= (0x4 << 9);
} else {
ctio->initiator_id = entry->fcp_hdr_le.d_id;
if (qpair->retry_term_cnt & 1)
tmp |= (0x4 << 9);
}
ctio->u.status1.flags = cpu_to_le16(tmp);
ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id;
ql_dbg(ql_dbg_tgt, vha, 0xe007,
"Sending retry TERM EXCH CTIO7 flags %04xh oxid %04xh attr valid %x\n",
le16_to_cpu(ctio->u.status1.flags),
le16_to_cpu(ctio->u.status1.ox_id),
(mcmd && mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID) ? 1 : 0);
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
if (mcmd)
qlt_build_abts_resp_iocb(mcmd);
else
qlt_24xx_send_abts_resp(qpair,
(struct abts_recv_from_24xx *)entry, FCP_TMF_CMPL, true);
}
/* drop cmds for the given lun
* XXX only looks for cmds on the port through which lun reset was recieved
* XXX does not go through the list of other port (which may have cmds
* for the same lun)
*/
static void abort_cmds_for_lun(struct scsi_qla_host *vha, u64 lun, be_id_t s_id)
{
struct qla_tgt_sess_op *op;
struct qla_tgt_cmd *cmd;
uint32_t key;
unsigned long flags;
key = sid_to_key(s_id);
spin_lock_irqsave(&vha->cmd_list_lock, flags);
list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
uint32_t op_key;
u64 op_lun;
op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
op_lun = scsilun_to_int(
(struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun);
if (op_key == key && op_lun == lun)
op->aborted = true;
}
list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
uint32_t cmd_key;
u64 cmd_lun;
cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
cmd_lun = scsilun_to_int(
(struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun);
if (cmd_key == key && cmd_lun == lun)
cmd->aborted = 1;
}
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
}
static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha,
uint64_t unpacked_lun)
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_qpair_hint *h = NULL;
if (vha->flags.qpairs_available) {
h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun);
if (!h)
h = &tgt->qphints[0];
} else {
h = &tgt->qphints[0];
}
return h;
}
static void qlt_do_tmr_work(struct work_struct *work)
{
struct qla_tgt_mgmt_cmd *mcmd =
container_of(work, struct qla_tgt_mgmt_cmd, work);
struct qla_hw_data *ha = mcmd->vha->hw;
int rc;
uint32_t tag;
unsigned long flags;
switch (mcmd->tmr_func) {
case QLA_TGT_ABTS:
tag = le32_to_cpu(mcmd->orig_iocb.abts.exchange_addr_to_abort);
break;
default:
tag = 0;
break;
}
rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun,
mcmd->tmr_func, tag);
if (rc != 0) {
spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags);
switch (mcmd->tmr_func) {
case QLA_TGT_ABTS:
mcmd->fc_tm_rsp = FCP_TMF_REJECTED;
qlt_build_abts_resp_iocb(mcmd);
break;
case QLA_TGT_LUN_RESET:
case QLA_TGT_CLEAR_TS:
case QLA_TGT_ABORT_TS:
case QLA_TGT_CLEAR_ACA:
case QLA_TGT_TARGET_RESET:
qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio,
qla_sam_status);
break;
case QLA_TGT_ABORT_ALL:
case QLA_TGT_NEXUS_LOSS_SESS:
case QLA_TGT_NEXUS_LOSS:
qlt_send_notify_ack(mcmd->qpair,
&mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
break;
}
spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags);
ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052,
"qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
mcmd->vha->vp_idx, rc);
mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
}
}
/* ha->hardware_lock supposed to be held on entry */
static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
struct abts_recv_from_24xx *abts, struct fc_port *sess)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_mgmt_cmd *mcmd;
struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
struct qla_tgt_cmd *abort_cmd;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
"qla_target(%d): task abort (tag=%d)\n",
vha->vp_idx, abts->exchange_addr_to_abort);
mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
if (mcmd == NULL) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051,
"qla_target(%d): %s: Allocation of ABORT cmd failed",
vha->vp_idx, __func__);
return -ENOMEM;
}
memset(mcmd, 0, sizeof(*mcmd));
mcmd->cmd_type = TYPE_TGT_TMCMD;
mcmd->sess = sess;
memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
mcmd->reset_count = ha->base_qpair->chip_reset;
mcmd->tmr_func = QLA_TGT_ABTS;
mcmd->qpair = h->qpair;
mcmd->vha = vha;
/*
* LUN is looked up by target-core internally based on the passed
* abts->exchange_addr_to_abort tag.
*/
mcmd->se_cmd.cpuid = h->cpuid;
abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess,
le32_to_cpu(abts->exchange_addr_to_abort));
if (!abort_cmd) {
mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
return -EIO;
}
mcmd->unpacked_lun = abort_cmd->se_cmd.orig_fe_lun;
if (abort_cmd->qpair) {
mcmd->qpair = abort_cmd->qpair;
mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid;
mcmd->abort_io_attr = abort_cmd->atio.u.isp24.attr;
mcmd->flags = QLA24XX_MGMT_ABORT_IO_ATTR_VALID;
}
INIT_WORK(&mcmd->work, qlt_do_tmr_work);
queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work);
return 0;
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
struct abts_recv_from_24xx *abts)
{
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess;
uint32_t tag = le32_to_cpu(abts->exchange_addr_to_abort);
be_id_t s_id;
int rc;
unsigned long flags;
if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053,
"qla_target(%d): ABTS: Abort Sequence not "
"supported\n", vha->vp_idx);
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
false);
return;
}
if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010,
"qla_target(%d): ABTS: Unknown Exchange "
"Address received\n", vha->vp_idx);
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
false);
return;
}
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011,
"qla_target(%d): task abort (s_id=%x:%x:%x, "
"tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id.domain,
abts->fcp_hdr_le.s_id.area, abts->fcp_hdr_le.s_id.al_pa, tag,
le32_to_cpu(abts->fcp_hdr_le.parameter));
s_id = le_id_to_be(abts->fcp_hdr_le.s_id);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
if (!sess) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
"qla_target(%d): task abort for non-existent session\n",
vha->vp_idx);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
false);
return;
}
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
if (sess->deleted) {
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
false);
return;
}
rc = __qlt_24xx_handle_abts(vha, abts, sess);
if (rc != 0) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054,
"qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n",
vha->vp_idx, rc);
qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
false);
return;
}
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair,
struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code)
{
struct scsi_qla_host *ha = mcmd->vha;
struct atio_from_isp *atio = &mcmd->orig_iocb.atio;
struct ctio7_to_24xx *ctio;
uint16_t temp;
ql_dbg(ql_dbg_tgt, ha, 0xe008,
"Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n",
ha, atio, resp_code);
ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL);
if (ctio == NULL) {
ql_dbg(ql_dbg_tgt, ha, 0xe04c,
"qla_target(%d): %s failed: unable to allocate "
"request packet\n", ha->vp_idx, __func__);
return;
}
ctio->entry_type = CTIO_TYPE7;
ctio->entry_count = 1;
ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
ctio->nport_handle = cpu_to_le16(mcmd->sess->loop_id);
ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio->vp_index = ha->vp_idx;
ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
ctio->exchange_addr = atio->u.isp24.exchange_addr;
temp = (atio->u.isp24.attr << 9)|
CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
ctio->u.status1.flags = cpu_to_le16(temp);
temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
ctio->u.status1.ox_id = cpu_to_le16(temp);
ctio->u.status1.scsi_status =
cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
ctio->u.status1.response_len = cpu_to_le16(8);
ctio->u.status1.sense_data[0] = resp_code;
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(ha, qpair->req);
}
void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
{
mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
}
EXPORT_SYMBOL(qlt_free_mcmd);
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then
* reacquire
*/
void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq)
{
struct atio_from_isp *atio = &cmd->atio;
struct ctio7_to_24xx *ctio;
uint16_t temp;
struct scsi_qla_host *vha = cmd->vha;
ql_dbg(ql_dbg_tgt_dif, vha, 0x3066,
"Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, "
"sense_key=%02x, asc=%02x, ascq=%02x",
vha, atio, scsi_status, sense_key, asc, ascq);
ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL);
if (!ctio) {
ql_dbg(ql_dbg_async, vha, 0x3067,
"qla2x00t(%ld): %s failed: unable to allocate request packet",
vha->host_no, __func__);
goto out;
}
ctio->entry_type = CTIO_TYPE7;
ctio->entry_count = 1;
ctio->handle = QLA_TGT_SKIP_HANDLE;
ctio->nport_handle = cpu_to_le16(cmd->sess->loop_id);
ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio->vp_index = vha->vp_idx;
ctio->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
ctio->exchange_addr = atio->u.isp24.exchange_addr;
temp = (atio->u.isp24.attr << 9) |
CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS;
ctio->u.status1.flags = cpu_to_le16(temp);
temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
ctio->u.status1.ox_id = cpu_to_le16(temp);
ctio->u.status1.scsi_status =
cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status);
ctio->u.status1.response_len = cpu_to_le16(18);
ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
if (ctio->u.status1.residual != 0)
ctio->u.status1.scsi_status |=
cpu_to_le16(SS_RESIDUAL_UNDER);
/* Fixed format sense data. */
ctio->u.status1.sense_data[0] = 0x70;
ctio->u.status1.sense_data[2] = sense_key;
/* Additional sense length */
ctio->u.status1.sense_data[7] = 0xa;
/* ASC and ASCQ */
ctio->u.status1.sense_data[12] = asc;
ctio->u.status1.sense_data[13] = ascq;
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
out:
return;
}
/* callback from target fabric module code */
void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
{
struct scsi_qla_host *vha = mcmd->sess->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
struct qla_qpair *qpair = mcmd->qpair;
bool free_mcmd = true;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013,
"TM response mcmd (%p) status %#x state %#x",
mcmd, mcmd->fc_tm_rsp, mcmd->flags);
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) {
/*
* Either the port is not online or this request was from
* previous life, just abort the processing.
*/
ql_dbg(ql_dbg_async, vha, 0xe100,
"RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n",
vha->flags.online, qla2x00_reset_active(vha),
mcmd->reset_count, qpair->chip_reset);
ha->tgt.tgt_ops->free_mcmd(mcmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return;
}
if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) {
switch (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode) {
case ELS_LOGO:
case ELS_PRLO:
case ELS_TPRLO:
ql_dbg(ql_dbg_disc, vha, 0x2106,
"TM response logo %8phC status %#x state %#x",
mcmd->sess->port_name, mcmd->fc_tm_rsp,
mcmd->flags);
qlt_schedule_sess_for_deletion(mcmd->sess);
break;
default:
qlt_send_notify_ack(vha->hw->base_qpair,
&mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
break;
}
} else {
if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) {
qlt_build_abts_resp_iocb(mcmd);
free_mcmd = false;
} else
qlt_24xx_send_task_mgmt_ctio(qpair, mcmd,
mcmd->fc_tm_rsp);
}
/*
* Make the callback for ->free_mcmd() to queue_work() and invoke
* target_put_sess_cmd() to drop cmd_kref to 1. The final
* target_put_sess_cmd() call will be made from TFO->check_stop_free()
* -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd
* descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() ->
* qlt_xmit_tm_rsp() returns here..
*/
if (free_mcmd)
ha->tgt.tgt_ops->free_mcmd(mcmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
}
EXPORT_SYMBOL(qlt_xmit_tm_rsp);
/* No locks */
static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm)
{
struct qla_tgt_cmd *cmd = prm->cmd;
BUG_ON(cmd->sg_cnt == 0);
prm->sg = (struct scatterlist *)cmd->sg;
prm->seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev, cmd->sg,
cmd->sg_cnt, cmd->dma_data_direction);
if (unlikely(prm->seg_cnt == 0))
goto out_err;
prm->cmd->sg_mapped = 1;
if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) {
/*
* If greater than four sg entries then we need to allocate
* the continuation entries
*/
if (prm->seg_cnt > QLA_TGT_DATASEGS_PER_CMD_24XX)
prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt -
QLA_TGT_DATASEGS_PER_CMD_24XX,
QLA_TGT_DATASEGS_PER_CONT_24XX);
} else {
/* DIF */
if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
(cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz);
prm->tot_dsds = prm->seg_cnt;
} else
prm->tot_dsds = prm->seg_cnt;
if (cmd->prot_sg_cnt) {
prm->prot_sg = cmd->prot_sg;
prm->prot_seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev,
cmd->prot_sg, cmd->prot_sg_cnt,
cmd->dma_data_direction);
if (unlikely(prm->prot_seg_cnt == 0))
goto out_err;
if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) ||
(cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) {
/* Dif Bundling not support here */
prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen,
cmd->blk_sz);
prm->tot_dsds += prm->prot_seg_cnt;
} else
prm->tot_dsds += prm->prot_seg_cnt;
}
}
return 0;
out_err:
ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d,
"qla_target(%d): PCI mapping failed: sg_cnt=%d",
0, prm->cmd->sg_cnt);
return -1;
}
static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd)
{
struct qla_hw_data *ha;
struct qla_qpair *qpair;
if (!cmd->sg_mapped)
return;
qpair = cmd->qpair;
dma_unmap_sg(&qpair->pdev->dev, cmd->sg, cmd->sg_cnt,
cmd->dma_data_direction);
cmd->sg_mapped = 0;
if (cmd->prot_sg_cnt)
dma_unmap_sg(&qpair->pdev->dev, cmd->prot_sg, cmd->prot_sg_cnt,
cmd->dma_data_direction);
if (!cmd->ctx)
return;
ha = vha->hw;
if (cmd->ctx_dsd_alloced)
qla2x00_clean_dsd_pool(ha, cmd->ctx);
dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma);
}
static int qlt_check_reserve_free_req(struct qla_qpair *qpair,
uint32_t req_cnt)
{
uint32_t cnt;
struct req_que *req = qpair->req;
if (req->cnt < (req_cnt + 2)) {
cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr :
rd_reg_dword_relaxed(req->req_q_out));
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length - (req->ring_index - cnt);
if (unlikely(req->cnt < (req_cnt + 2)))
return -EAGAIN;
}
req->cnt -= req_cnt;
return 0;
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static inline void *qlt_get_req_pkt(struct req_que *req)
{
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else {
req->ring_ptr++;
}
return (cont_entry_t *)req->ring_ptr;
}
/* ha->hardware_lock supposed to be held on entry */
static inline uint32_t qlt_make_handle(struct qla_qpair *qpair)
{
uint32_t h;
int index;
uint8_t found = 0;
struct req_que *req = qpair->req;
h = req->current_outstanding_cmd;
for (index = 1; index < req->num_outstanding_cmds; index++) {
h++;
if (h == req->num_outstanding_cmds)
h = 1;
if (h == QLA_TGT_SKIP_HANDLE)
continue;
if (!req->outstanding_cmds[h]) {
found = 1;
break;
}
}
if (found) {
req->current_outstanding_cmd = h;
} else {
ql_dbg(ql_dbg_io, qpair->vha, 0x305b,
"qla_target(%d): Ran out of empty cmd slots\n",
qpair->vha->vp_idx);
h = QLA_TGT_NULL_HANDLE;
}
return h;
}
/* ha->hardware_lock supposed to be held on entry */
static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair,
struct qla_tgt_prm *prm)
{
uint32_t h;
struct ctio7_to_24xx *pkt;
struct atio_from_isp *atio = &prm->cmd->atio;
uint16_t temp;
struct qla_tgt_cmd *cmd = prm->cmd;
pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr;
prm->pkt = pkt;
memset(pkt, 0, sizeof(*pkt));
pkt->entry_type = CTIO_TYPE7;
pkt->entry_count = (uint8_t)prm->req_cnt;
pkt->vp_index = prm->cmd->vp_idx;
h = qlt_make_handle(qpair);
if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
/*
* CTIO type 7 from the firmware doesn't provide a way to
* know the initiator's LOOP ID, hence we can't find
* the session and, so, the command.
*/
return -EAGAIN;
} else
qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
pkt->handle = make_handle(qpair->req->id, h);
pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
pkt->exchange_addr = atio->u.isp24.exchange_addr;
temp = atio->u.isp24.attr << 9;
pkt->u.status0.flags |= cpu_to_le16(temp);
temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
pkt->u.status0.ox_id = cpu_to_le16(temp);
pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset);
if (cmd->edif) {
if (cmd->dma_data_direction == DMA_TO_DEVICE)
prm->cmd->sess->edif.rx_bytes += cmd->bufflen;
if (cmd->dma_data_direction == DMA_FROM_DEVICE)
prm->cmd->sess->edif.tx_bytes += cmd->bufflen;
pkt->u.status0.edif_flags |= EF_EN_EDIF;
}
return 0;
}
/*
* ha->hardware_lock supposed to be held on entry. We have already made sure
* that there is sufficient amount of request entries to not drop it.
*/
static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm)
{
int cnt;
struct dsd64 *cur_dsd;
/* Build continuation packets */
while (prm->seg_cnt > 0) {
cont_a64_entry_t *cont_pkt64 =
(cont_a64_entry_t *)qlt_get_req_pkt(
prm->cmd->qpair->req);
/*
* Make sure that from cont_pkt64 none of
* 64-bit specific fields used for 32-bit
* addressing. Cast to (cont_entry_t *) for
* that.
*/
memset(cont_pkt64, 0, sizeof(*cont_pkt64));
cont_pkt64->entry_count = 1;
cont_pkt64->sys_define = 0;
cont_pkt64->entry_type = CONTINUE_A64_TYPE;
cur_dsd = cont_pkt64->dsd;
/* Load continuation entry data segments */
for (cnt = 0;
cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt;
cnt++, prm->seg_cnt--) {
append_dsd64(&cur_dsd, prm->sg);
prm->sg = sg_next(prm->sg);
}
}
}
/*
* ha->hardware_lock supposed to be held on entry. We have already made sure
* that there is sufficient amount of request entries to not drop it.
*/
static void qlt_load_data_segments(struct qla_tgt_prm *prm)
{
int cnt;
struct dsd64 *cur_dsd;
struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt;
pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen);
/* Setup packet address segment pointer */
cur_dsd = &pkt24->u.status0.dsd;
/* Set total data segment count */
if (prm->seg_cnt)
pkt24->dseg_count = cpu_to_le16(prm->seg_cnt);
if (prm->seg_cnt == 0) {
/* No data transfer */
cur_dsd->address = 0;
cur_dsd->length = 0;
return;
}
/* If scatter gather */
/* Load command entry data segments */
for (cnt = 0;
(cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt;
cnt++, prm->seg_cnt--) {
append_dsd64(&cur_dsd, prm->sg);
prm->sg = sg_next(prm->sg);
}
qlt_load_cont_data_segments(prm);
}
static inline int qlt_has_data(struct qla_tgt_cmd *cmd)
{
return cmd->bufflen > 0;
}
static void qlt_print_dif_err(struct qla_tgt_prm *prm)
{
struct qla_tgt_cmd *cmd;
struct scsi_qla_host *vha;
/* asc 0x10=dif error */
if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) {
cmd = prm->cmd;
vha = cmd->vha;
/* ASCQ */
switch (prm->sense_buffer[13]) {
case 1:
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b,
"BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] "
"se_cmd=%p tag[%x]",
cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
cmd->atio.u.isp24.exchange_addr);
break;
case 2:
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c,
"BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] "
"se_cmd=%p tag[%x]",
cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
cmd->atio.u.isp24.exchange_addr);
break;
case 3:
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f,
"BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] "
"se_cmd=%p tag[%x]",
cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
cmd->atio.u.isp24.exchange_addr);
break;
default:
ql_dbg(ql_dbg_tgt_dif, vha, 0xe010,
"BE detected Dif ERR: lba[%llx|%lld] len[%x] "
"se_cmd=%p tag[%x]",
cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd,
cmd->atio.u.isp24.exchange_addr);
break;
}
ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16);
}
}
/*
* Called without ha->hardware_lock held
*/
static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd,
struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status,
uint32_t *full_req_cnt)
{
struct se_cmd *se_cmd = &cmd->se_cmd;
struct qla_qpair *qpair = cmd->qpair;
prm->cmd = cmd;
prm->tgt = cmd->tgt;
prm->pkt = NULL;
prm->rq_result = scsi_status;
prm->sense_buffer = &cmd->sense_buffer[0];
prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER;
prm->sg = NULL;
prm->seg_cnt = -1;
prm->req_cnt = 1;
prm->residual = 0;
prm->add_status_pkt = 0;
prm->prot_sg = NULL;
prm->prot_seg_cnt = 0;
prm->tot_dsds = 0;
if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) {
if (qlt_pci_map_calc_cnt(prm) != 0)
return -EAGAIN;
}
*full_req_cnt = prm->req_cnt;
if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c,
"Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
prm->residual, se_cmd->tag,
se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0,
cmd->bufflen, prm->rq_result);
prm->rq_result |= SS_RESIDUAL_UNDER;
} else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
prm->residual = se_cmd->residual_count;
ql_dbg_qp(ql_dbg_io, qpair, 0x305d,
"Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n",
prm->residual, se_cmd->tag, se_cmd->t_task_cdb ?
se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result);
prm->rq_result |= SS_RESIDUAL_OVER;
}
if (xmit_type & QLA_TGT_XMIT_STATUS) {
/*
* If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be
* ignored in *xmit_response() below
*/
if (qlt_has_data(cmd)) {
if (QLA_TGT_SENSE_VALID(prm->sense_buffer) ||
(IS_FWI2_CAPABLE(cmd->vha->hw) &&
(prm->rq_result != 0))) {
prm->add_status_pkt = 1;
(*full_req_cnt)++;
}
}
}
return 0;
}
static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd,
int sending_sense)
{
if (cmd->qpair->enable_class_2)
return 0;
if (sending_sense)
return cmd->conf_compl_supported;
else
return cmd->qpair->enable_explicit_conf &&
cmd->conf_compl_supported;
}
static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio,
struct qla_tgt_prm *prm)
{
prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len,
(uint32_t)sizeof(ctio->u.status1.sense_data));
ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS);
if (qlt_need_explicit_conf(prm->cmd, 0)) {
ctio->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_EXPLICIT_CONFORM |
CTIO7_FLAGS_CONFORM_REQ);
}
ctio->u.status0.residual = cpu_to_le32(prm->residual);
ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result);
if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) {
int i;
if (qlt_need_explicit_conf(prm->cmd, 1)) {
if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) {
ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017,
"Skipping EXPLICIT_CONFORM and "
"CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ "
"non GOOD status\n");
goto skip_explict_conf;
}
ctio->u.status1.flags |= cpu_to_le16(
CTIO7_FLAGS_EXPLICIT_CONFORM |
CTIO7_FLAGS_CONFORM_REQ);
}
skip_explict_conf:
ctio->u.status1.flags &=
~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
ctio->u.status1.flags |=
cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
ctio->u.status1.scsi_status |=
cpu_to_le16(SS_SENSE_LEN_VALID);
ctio->u.status1.sense_length =
cpu_to_le16(prm->sense_buffer_len);
for (i = 0; i < prm->sense_buffer_len/4; i++) {
uint32_t v;
v = get_unaligned_be32(
&((uint32_t *)prm->sense_buffer)[i]);
put_unaligned_le32(v,
&((uint32_t *)ctio->u.status1.sense_data)[i]);
}
qlt_print_dif_err(prm);
} else {
ctio->u.status1.flags &=
~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0);
ctio->u.status1.flags |=
cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1);
ctio->u.status1.sense_length = 0;
memset(ctio->u.status1.sense_data, 0,
sizeof(ctio->u.status1.sense_data));
}
/* Sense with len > 24, is it possible ??? */
}
static inline int
qlt_hba_err_chk_enabled(struct se_cmd *se_cmd)
{
switch (se_cmd->prot_op) {
case TARGET_PROT_DOUT_INSERT:
case TARGET_PROT_DIN_STRIP:
if (ql2xenablehba_err_chk >= 1)
return 1;
break;
case TARGET_PROT_DOUT_PASS:
case TARGET_PROT_DIN_PASS:
if (ql2xenablehba_err_chk >= 2)
return 1;
break;
case TARGET_PROT_DIN_INSERT:
case TARGET_PROT_DOUT_STRIP:
return 1;
default:
break;
}
return 0;
}
static inline int
qla_tgt_ref_mask_check(struct se_cmd *se_cmd)
{
switch (se_cmd->prot_op) {
case TARGET_PROT_DIN_INSERT:
case TARGET_PROT_DOUT_INSERT:
case TARGET_PROT_DIN_STRIP:
case TARGET_PROT_DOUT_STRIP:
case TARGET_PROT_DIN_PASS:
case TARGET_PROT_DOUT_PASS:
return 1;
default:
return 0;
}
return 0;
}
/*
* qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command
*/
static void
qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx,
uint16_t *pfw_prot_opts)
{
struct se_cmd *se_cmd = &cmd->se_cmd;
uint32_t lba = 0xffffffff & se_cmd->t_task_lba;
scsi_qla_host_t *vha = cmd->tgt->vha;
struct qla_hw_data *ha = vha->hw;
uint32_t t32 = 0;
/*
* wait till Mode Sense/Select cmd, modepage Ah, subpage 2
* have been immplemented by TCM, before AppTag is avail.
* Look for modesense_handlers[]
*/
ctx->app_tag = 0;
ctx->app_tag_mask[0] = 0x0;
ctx->app_tag_mask[1] = 0x0;
if (IS_PI_UNINIT_CAPABLE(ha)) {
if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
(se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
*pfw_prot_opts |= PO_DIS_VALD_APP_ESC;
else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
*pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
}
t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts);
switch (se_cmd->prot_type) {
case TARGET_DIF_TYPE0_PROT:
/*
* No check for ql2xenablehba_err_chk, as it
* would be an I/O error if hba tag generation
* is not done.
*/
ctx->ref_tag = cpu_to_le32(lba);
/* enable ALL bytes of the ref tag */
ctx->ref_tag_mask[0] = 0xff;
ctx->ref_tag_mask[1] = 0xff;
ctx->ref_tag_mask[2] = 0xff;
ctx->ref_tag_mask[3] = 0xff;
break;
case TARGET_DIF_TYPE1_PROT:
/*
* For TYPE 1 protection: 16 bit GUARD tag, 32 bit
* REF tag, and 16 bit app tag.
*/
ctx->ref_tag = cpu_to_le32(lba);
if (!qla_tgt_ref_mask_check(se_cmd) ||
!(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
*pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
break;
}
/* enable ALL bytes of the ref tag */
ctx->ref_tag_mask[0] = 0xff;
ctx->ref_tag_mask[1] = 0xff;
ctx->ref_tag_mask[2] = 0xff;
ctx->ref_tag_mask[3] = 0xff;
break;
case TARGET_DIF_TYPE2_PROT:
/*
* For TYPE 2 protection: 16 bit GUARD + 32 bit REF
* tag has to match LBA in CDB + N
*/
ctx->ref_tag = cpu_to_le32(lba);
if (!qla_tgt_ref_mask_check(se_cmd) ||
!(ha->tgt.tgt_ops->chk_dif_tags(t32))) {
*pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
break;
}
/* enable ALL bytes of the ref tag */
ctx->ref_tag_mask[0] = 0xff;
ctx->ref_tag_mask[1] = 0xff;
ctx->ref_tag_mask[2] = 0xff;
ctx->ref_tag_mask[3] = 0xff;
break;
case TARGET_DIF_TYPE3_PROT:
/* For TYPE 3 protection: 16 bit GUARD only */
*pfw_prot_opts |= PO_DIS_REF_TAG_VALD;
ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] =
ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00;
break;
}
}
static inline int
qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm)
{
struct dsd64 *cur_dsd;
uint32_t transfer_length = 0;
uint32_t data_bytes;
uint32_t dif_bytes;
uint8_t bundling = 1;
struct crc_context *crc_ctx_pkt = NULL;
struct qla_hw_data *ha;
struct ctio_crc2_to_fw *pkt;
dma_addr_t crc_ctx_dma;
uint16_t fw_prot_opts = 0;
struct qla_tgt_cmd *cmd = prm->cmd;
struct se_cmd *se_cmd = &cmd->se_cmd;
uint32_t h;
struct atio_from_isp *atio = &prm->cmd->atio;
struct qla_tc_param tc;
uint16_t t16;
scsi_qla_host_t *vha = cmd->vha;
ha = vha->hw;
pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr;
prm->pkt = pkt;
memset(pkt, 0, sizeof(*pkt));
ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071,
"qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n",
cmd->vp_idx, __func__, se_cmd, se_cmd->prot_op,
prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba);
if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) ||
(se_cmd->prot_op == TARGET_PROT_DOUT_STRIP))
bundling = 0;
/* Compute dif len and adjust data len to incude protection */
data_bytes = cmd->bufflen;
dif_bytes = (data_bytes / cmd->blk_sz) * 8;
switch (se_cmd->prot_op) {
case TARGET_PROT_DIN_INSERT:
case TARGET_PROT_DOUT_STRIP:
transfer_length = data_bytes;
if (cmd->prot_sg_cnt)
data_bytes += dif_bytes;
break;
case TARGET_PROT_DIN_STRIP:
case TARGET_PROT_DOUT_INSERT:
case TARGET_PROT_DIN_PASS:
case TARGET_PROT_DOUT_PASS:
transfer_length = data_bytes + dif_bytes;
break;
default:
BUG();
break;
}
if (!qlt_hba_err_chk_enabled(se_cmd))
fw_prot_opts |= 0x10; /* Disable Guard tag checking */
/* HBA error checking enabled */
else if (IS_PI_UNINIT_CAPABLE(ha)) {
if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) ||
(se_cmd->prot_type == TARGET_DIF_TYPE2_PROT))
fw_prot_opts |= PO_DIS_VALD_APP_ESC;
else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT)
fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC;
}
switch (se_cmd->prot_op) {
case TARGET_PROT_DIN_INSERT:
case TARGET_PROT_DOUT_INSERT:
fw_prot_opts |= PO_MODE_DIF_INSERT;
break;
case TARGET_PROT_DIN_STRIP:
case TARGET_PROT_DOUT_STRIP:
fw_prot_opts |= PO_MODE_DIF_REMOVE;
break;
case TARGET_PROT_DIN_PASS:
case TARGET_PROT_DOUT_PASS:
fw_prot_opts |= PO_MODE_DIF_PASS;
/* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */
break;
default:/* Normal Request */
fw_prot_opts |= PO_MODE_DIF_PASS;
break;
}
/* ---- PKT ---- */
/* Update entry type to indicate Command Type CRC_2 IOCB */
pkt->entry_type = CTIO_CRC2;
pkt->entry_count = 1;
pkt->vp_index = cmd->vp_idx;
h = qlt_make_handle(qpair);
if (unlikely(h == QLA_TGT_NULL_HANDLE)) {
/*
* CTIO type 7 from the firmware doesn't provide a way to
* know the initiator's LOOP ID, hence we can't find
* the session and, so, the command.
*/
return -EAGAIN;
} else
qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
pkt->handle = make_handle(qpair->req->id, h);
pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id);
pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
pkt->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
pkt->exchange_addr = atio->u.isp24.exchange_addr;
/* silence compile warning */
t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
pkt->ox_id = cpu_to_le16(t16);
t16 = (atio->u.isp24.attr << 9);
pkt->flags |= cpu_to_le16(t16);
pkt->relative_offset = cpu_to_le32(prm->cmd->offset);
/* Set transfer direction */
if (cmd->dma_data_direction == DMA_TO_DEVICE)
pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN);
else if (cmd->dma_data_direction == DMA_FROM_DEVICE)
pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT);
pkt->dseg_count = cpu_to_le16(prm->tot_dsds);
/* Fibre channel byte count */
pkt->transfer_length = cpu_to_le32(transfer_length);
/* ----- CRC context -------- */
/* Allocate CRC context from global pool */
crc_ctx_pkt = cmd->ctx =
dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
if (!crc_ctx_pkt)
goto crc_queuing_error;
crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
/* Set handle */
crc_ctx_pkt->handle = pkt->handle;
qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts);
put_unaligned_le64(crc_ctx_dma, &pkt->crc_context_address);
pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW);
if (!bundling) {
cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
} else {
/*
* Configure Bundling if we need to fetch interlaving
* protection PCI accesses
*/
fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
crc_ctx_pkt->u.bundling.dseg_count =
cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt);
cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0];
}
/* Finish the common fields of CRC pkt */
crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz);
crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
crc_ctx_pkt->guard_seed = cpu_to_le16(0);
memset((uint8_t *)&tc, 0 , sizeof(tc));
tc.vha = vha;
tc.blk_sz = cmd->blk_sz;
tc.bufflen = cmd->bufflen;
tc.sg = cmd->sg;
tc.prot_sg = cmd->prot_sg;
tc.ctx = crc_ctx_pkt;
tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced;
/* Walks data segments */
pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR);
if (!bundling && prm->prot_seg_cnt) {
if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd,
prm->tot_dsds, &tc))
goto crc_queuing_error;
} else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd,
(prm->tot_dsds - prm->prot_seg_cnt), &tc))
goto crc_queuing_error;
if (bundling && prm->prot_seg_cnt) {
/* Walks dif segments */
pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA;
cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd,
prm->prot_seg_cnt, cmd))
goto crc_queuing_error;
}
return QLA_SUCCESS;
crc_queuing_error:
/* Cleanup will be performed by the caller */
qpair->req->outstanding_cmds[h] = NULL;
return QLA_FUNCTION_FAILED;
}
/*
* Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and *
* QLA_TGT_XMIT_STATUS for >= 24xx silicon
*/
int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
uint8_t scsi_status)
{
struct scsi_qla_host *vha = cmd->vha;
struct qla_qpair *qpair = cmd->qpair;
struct ctio7_to_24xx *pkt;
struct qla_tgt_prm prm;
uint32_t full_req_cnt = 0;
unsigned long flags = 0;
int res;
if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
(cmd->sess && cmd->sess->deleted)) {
cmd->state = QLA_TGT_STATE_PROCESSED;
return 0;
}
ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018,
"is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n",
(xmit_type & QLA_TGT_XMIT_STATUS) ?
1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction,
&cmd->se_cmd, qpair->id);
res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status,
&full_req_cnt);
if (unlikely(res != 0)) {
return res;
}
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
if (xmit_type == QLA_TGT_XMIT_STATUS)
qpair->tgt_counters.core_qla_snd_status++;
else
qpair->tgt_counters.core_qla_que_buf++;
if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) {
/*
* Either the port is not online or this request was from
* previous life, just abort the processing.
*/
cmd->state = QLA_TGT_STATE_PROCESSED;
ql_dbg_qp(ql_dbg_async, qpair, 0xe101,
"RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
vha->flags.online, qla2x00_reset_active(vha),
cmd->reset_count, qpair->chip_reset);
res = 0;
goto out_unmap_unlock;
}
/* Does F/W have an IOCBs for this request */
res = qlt_check_reserve_free_req(qpair, full_req_cnt);
if (unlikely(res))
goto out_unmap_unlock;
if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA))
res = qlt_build_ctio_crc2_pkt(qpair, &prm);
else
res = qlt_24xx_build_ctio_pkt(qpair, &prm);
if (unlikely(res != 0)) {
qpair->req->cnt += full_req_cnt;
goto out_unmap_unlock;
}
pkt = (struct ctio7_to_24xx *)prm.pkt;
if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) {
pkt->u.status0.flags |=
cpu_to_le16(CTIO7_FLAGS_DATA_IN |
CTIO7_FLAGS_STATUS_MODE_0);
if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
qlt_load_data_segments(&prm);
if (prm.add_status_pkt == 0) {
if (xmit_type & QLA_TGT_XMIT_STATUS) {
pkt->u.status0.scsi_status =
cpu_to_le16(prm.rq_result);
if (!cmd->edif)
pkt->u.status0.residual =
cpu_to_le32(prm.residual);
pkt->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_SEND_STATUS);
if (qlt_need_explicit_conf(cmd, 0)) {
pkt->u.status0.flags |=
cpu_to_le16(
CTIO7_FLAGS_EXPLICIT_CONFORM |
CTIO7_FLAGS_CONFORM_REQ);
}
}
} else {
/*
* We have already made sure that there is sufficient
* amount of request entries to not drop HW lock in
* req_pkt().
*/
struct ctio7_to_24xx *ctio =
(struct ctio7_to_24xx *)qlt_get_req_pkt(
qpair->req);
ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e,
"Building additional status packet 0x%p.\n",
ctio);
/*
* T10Dif: ctio_crc2_to_fw overlay ontop of
* ctio7_to_24xx
*/
memcpy(ctio, pkt, sizeof(*ctio));
/* reset back to CTIO7 */
ctio->entry_count = 1;
ctio->entry_type = CTIO_TYPE7;
ctio->dseg_count = 0;
ctio->u.status1.flags &= ~cpu_to_le16(
CTIO7_FLAGS_DATA_IN);
/* Real finish is ctio_m1's finish */
pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK;
pkt->u.status0.flags |= cpu_to_le16(
CTIO7_FLAGS_DONT_RET_CTIO);
/* qlt_24xx_init_ctio_to_isp will correct
* all neccessary fields that's part of CTIO7.
* There should be no residual of CTIO-CRC2 data.
*/
qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio,
&prm);
}
} else
qlt_24xx_init_ctio_to_isp(pkt, &prm);
cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */
cmd->cmd_sent_to_fw = 1;
cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return 0;
out_unmap_unlock:
qlt_unmap_sg(vha, cmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return res;
}
EXPORT_SYMBOL(qlt_xmit_response);
int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
{
struct ctio7_to_24xx *pkt;
struct scsi_qla_host *vha = cmd->vha;
struct qla_tgt *tgt = cmd->tgt;
struct qla_tgt_prm prm;
unsigned long flags = 0;
int res = 0;
struct qla_qpair *qpair = cmd->qpair;
memset(&prm, 0, sizeof(prm));
prm.cmd = cmd;
prm.tgt = tgt;
prm.sg = NULL;
prm.req_cnt = 1;
if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
(cmd->sess && cmd->sess->deleted)) {
/*
* Either the port is not online or this request was from
* previous life, just abort the processing.
*/
cmd->aborted = 1;
cmd->write_data_transferred = 0;
cmd->state = QLA_TGT_STATE_DATA_IN;
vha->hw->tgt.tgt_ops->handle_data(cmd);
ql_dbg_qp(ql_dbg_async, qpair, 0xe102,
"RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n",
vha->flags.online, qla2x00_reset_active(vha),
cmd->reset_count, qpair->chip_reset);
return 0;
}
/* Calculate number of entries and segments required */
if (qlt_pci_map_calc_cnt(&prm) != 0)
return -EAGAIN;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
/* Does F/W have an IOCBs for this request */
res = qlt_check_reserve_free_req(qpair, prm.req_cnt);
if (res != 0)
goto out_unlock_free_unmap;
if (cmd->se_cmd.prot_op)
res = qlt_build_ctio_crc2_pkt(qpair, &prm);
else
res = qlt_24xx_build_ctio_pkt(qpair, &prm);
if (unlikely(res != 0)) {
qpair->req->cnt += prm.req_cnt;
goto out_unlock_free_unmap;
}
pkt = (struct ctio7_to_24xx *)prm.pkt;
pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT |
CTIO7_FLAGS_STATUS_MODE_0);
if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL)
qlt_load_data_segments(&prm);
cmd->state = QLA_TGT_STATE_NEED_DATA;
cmd->cmd_sent_to_fw = 1;
cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags);
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return res;
out_unlock_free_unmap:
qlt_unmap_sg(vha, cmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return res;
}
EXPORT_SYMBOL(qlt_rdy_to_xfer);
/*
* it is assumed either hardware_lock or qpair lock is held.
*/
static void
qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
struct ctio_crc_from_fw *sts)
{
uint8_t *ap = &sts->actual_dif[0];
uint8_t *ep = &sts->expected_dif[0];
uint64_t lba = cmd->se_cmd.t_task_lba;
uint8_t scsi_status, sense_key, asc, ascq;
unsigned long flags;
struct scsi_qla_host *vha = cmd->vha;
cmd->trc_flags |= TRC_DIF_ERR;
cmd->a_guard = get_unaligned_be16(ap + 0);
cmd->a_app_tag = get_unaligned_be16(ap + 2);
cmd->a_ref_tag = get_unaligned_be32(ap + 4);
cmd->e_guard = get_unaligned_be16(ep + 0);
cmd->e_app_tag = get_unaligned_be16(ep + 2);
cmd->e_ref_tag = get_unaligned_be32(ep + 4);
ql_dbg(ql_dbg_tgt_dif, vha, 0xf075,
"%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state);
scsi_status = sense_key = asc = ascq = 0;
/* check appl tag */
if (cmd->e_app_tag != cmd->a_app_tag) {
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d,
"App Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard [%x|%x] cmd=%p ox_id[%04x]",
cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
cmd->atio.u.isp24.fcp_hdr.ox_id);
cmd->dif_err_code = DIF_ERR_APP;
scsi_status = SAM_STAT_CHECK_CONDITION;
sense_key = ABORTED_COMMAND;
asc = 0x10;
ascq = 0x2;
}
/* check ref tag */
if (cmd->e_ref_tag != cmd->a_ref_tag) {
ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e,
"Ref Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard[%x|%x] cmd=%p ox_id[%04x] ",
cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
cmd->atio.u.isp24.fcp_hdr.ox_id);
cmd->dif_err_code = DIF_ERR_REF;
scsi_status = SAM_STAT_CHECK_CONDITION;
sense_key = ABORTED_COMMAND;
asc = 0x10;
ascq = 0x3;
goto out;
}
/* check guard */
if (cmd->e_guard != cmd->a_guard) {
ql_dbg(ql_dbg_tgt_dif, vha, 0xe012,
"Guard ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard [%x|%x] cmd=%p ox_id[%04x]",
cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks,
cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag,
cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd,
cmd->atio.u.isp24.fcp_hdr.ox_id);
cmd->dif_err_code = DIF_ERR_GRD;
scsi_status = SAM_STAT_CHECK_CONDITION;
sense_key = ABORTED_COMMAND;
asc = 0x10;
ascq = 0x1;
}
out:
switch (cmd->state) {
case QLA_TGT_STATE_NEED_DATA:
/* handle_data will load DIF error code */
cmd->state = QLA_TGT_STATE_DATA_IN;
vha->hw->tgt.tgt_ops->handle_data(cmd);
break;
default:
spin_lock_irqsave(&cmd->cmd_lock, flags);
if (cmd->aborted) {
spin_unlock_irqrestore(&cmd->cmd_lock, flags);
vha->hw->tgt.tgt_ops->free_cmd(cmd);
break;
}
spin_unlock_irqrestore(&cmd->cmd_lock, flags);
qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc,
ascq);
/* assume scsi status gets out on the wire.
* Will not wait for completion.
*/
vha->hw->tgt.tgt_ops->free_cmd(cmd);
break;
}
}
/* If hardware_lock held on entry, might drop it, then reaquire */
/* This function sends the appropriate CTIO to ISP 2xxx or 24xx */
static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *ntfy)
{
struct nack_to_isp *nack;
struct qla_hw_data *ha = vha->hw;
request_t *pkt;
int ret = 0;
ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c,
"Sending TERM ELS CTIO (ha=%p)\n", ha);
pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL);
if (pkt == NULL) {
ql_dbg(ql_dbg_tgt, vha, 0xe080,
"qla_target(%d): %s failed: unable to allocate "
"request packet\n", vha->vp_idx, __func__);
return -ENOMEM;
}
pkt->entry_type = NOTIFY_ACK_TYPE;
pkt->entry_count = 1;
pkt->handle = QLA_TGT_SKIP_HANDLE;
nack = (struct nack_to_isp *)pkt;
nack->ox_id = ntfy->ox_id;
nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
nack->u.isp24.flags = ntfy->u.isp24.flags &
cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
}
/* terminate */
nack->u.isp24.flags |=
__constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE);
nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
nack->u.isp24.status = ntfy->u.isp24.status;
nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
qla2x00_start_iocbs(vha, vha->req);
return ret;
}
static void qlt_send_term_imm_notif(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *imm, int ha_locked)
{
int rc;
WARN_ON_ONCE(!ha_locked);
rc = __qlt_send_term_imm_notif(vha, imm);
pr_debug("rc = %d\n", rc);
}
/*
* If hardware_lock held on entry, might drop it, then reaquire
* This function sends the appropriate CTIO to ISP 2xxx or 24xx
*/
static int __qlt_send_term_exchange(struct qla_qpair *qpair,
struct qla_tgt_cmd *cmd,
struct atio_from_isp *atio)
{
struct scsi_qla_host *vha = qpair->vha;
struct ctio7_to_24xx *ctio24;
struct qla_hw_data *ha = vha->hw;
request_t *pkt;
int ret = 0;
uint16_t temp;
ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha);
if (cmd)
vha = cmd->vha;
pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL);
if (pkt == NULL) {
ql_dbg(ql_dbg_tgt, vha, 0xe050,
"qla_target(%d): %s failed: unable to allocate "
"request packet\n", vha->vp_idx, __func__);
return -ENOMEM;
}
if (cmd != NULL) {
if (cmd->state < QLA_TGT_STATE_PROCESSED) {
ql_dbg(ql_dbg_tgt, vha, 0xe051,
"qla_target(%d): Terminating cmd %p with "
"incorrect state %d\n", vha->vp_idx, cmd,
cmd->state);
} else
ret = 1;
}
qpair->tgt_counters.num_term_xchg_sent++;
pkt->entry_count = 1;
pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
ctio24 = (struct ctio7_to_24xx *)pkt;
ctio24->entry_type = CTIO_TYPE7;
ctio24->nport_handle = cpu_to_le16(CTIO7_NHANDLE_UNRECOGNIZED);
ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio24->vp_index = vha->vp_idx;
ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
ctio24->exchange_addr = atio->u.isp24.exchange_addr;
temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 |
CTIO7_FLAGS_TERMINATE;
ctio24->u.status1.flags = cpu_to_le16(temp);
temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id);
ctio24->u.status1.ox_id = cpu_to_le16(temp);
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
return ret;
}
static void qlt_send_term_exchange(struct qla_qpair *qpair,
struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked,
int ul_abort)
{
struct scsi_qla_host *vha;
unsigned long flags = 0;
int rc;
/* why use different vha? NPIV */
if (cmd)
vha = cmd->vha;
else
vha = qpair->vha;
if (ha_locked) {
rc = __qlt_send_term_exchange(qpair, cmd, atio);
if (rc == -ENOMEM)
qlt_alloc_qfull_cmd(vha, atio, 0, 0);
goto done;
}
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
rc = __qlt_send_term_exchange(qpair, cmd, atio);
if (rc == -ENOMEM)
qlt_alloc_qfull_cmd(vha, atio, 0, 0);
done:
if (cmd && !ul_abort && !cmd->aborted) {
if (cmd->sg_mapped)
qlt_unmap_sg(vha, cmd);
vha->hw->tgt.tgt_ops->free_cmd(cmd);
}
if (!ha_locked)
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
return;
}
static void qlt_init_term_exchange(struct scsi_qla_host *vha)
{
struct list_head free_list;
struct qla_tgt_cmd *cmd, *tcmd;
vha->hw->tgt.leak_exchg_thresh_hold =
(vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT;
cmd = tcmd = NULL;
if (!list_empty(&vha->hw->tgt.q_full_list)) {
INIT_LIST_HEAD(&free_list);
list_splice_init(&vha->hw->tgt.q_full_list, &free_list);
list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
list_del(&cmd->cmd_list);
/* This cmd was never sent to TCM. There is no need
* to schedule free or call free_cmd
*/
qlt_free_cmd(cmd);
vha->hw->tgt.num_qfull_cmds_alloc--;
}
}
vha->hw->tgt.num_qfull_cmds_dropped = 0;
}
static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha)
{
uint32_t total_leaked;
total_leaked = vha->hw->tgt.num_qfull_cmds_dropped;
if (vha->hw->tgt.leak_exchg_thresh_hold &&
(total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) {
ql_dbg(ql_dbg_tgt, vha, 0xe079,
"Chip reset due to exchange starvation: %d/%d.\n",
total_leaked, vha->hw->cur_fw_xcb_count);
if (IS_P3P_TYPE(vha->hw))
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
}
int qlt_abort_cmd(struct qla_tgt_cmd *cmd)
{
struct qla_tgt *tgt = cmd->tgt;
struct scsi_qla_host *vha = tgt->vha;
struct se_cmd *se_cmd = &cmd->se_cmd;
unsigned long flags;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014,
"qla_target(%d): terminating exchange for aborted cmd=%p "
"(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd,
se_cmd->tag);
spin_lock_irqsave(&cmd->cmd_lock, flags);
if (cmd->aborted) {
if (cmd->sg_mapped)
qlt_unmap_sg(vha, cmd);
spin_unlock_irqrestore(&cmd->cmd_lock, flags);
/*
* It's normal to see 2 calls in this path:
* 1) XFER Rdy completion + CMD_T_ABORT
* 2) TCM TMR - drain_state_list
*/
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016,
"multiple abort. %p transport_state %x, t_state %x, "
"se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state,
cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags);
return -EIO;
}
cmd->aborted = 1;
cmd->trc_flags |= TRC_ABORT;
spin_unlock_irqrestore(&cmd->cmd_lock, flags);
qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1);
return 0;
}
EXPORT_SYMBOL(qlt_abort_cmd);
void qlt_free_cmd(struct qla_tgt_cmd *cmd)
{
struct fc_port *sess = cmd->sess;
ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074,
"%s: se_cmd[%p] ox_id %04x\n",
__func__, &cmd->se_cmd,
be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
BUG_ON(cmd->cmd_in_wq);
if (!cmd->q_full)
qlt_decr_num_pend_cmds(cmd->vha);
BUG_ON(cmd->sg_mapped);
cmd->jiffies_at_free = get_jiffies_64();
if (!sess || !sess->se_sess) {
WARN_ON(1);
return;
}
cmd->jiffies_at_free = get_jiffies_64();
cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
}
EXPORT_SYMBOL(qlt_free_cmd);
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio,
struct qla_tgt_cmd *cmd, uint32_t status)
{
int term = 0;
struct scsi_qla_host *vha = qpair->vha;
if (cmd->se_cmd.prot_op)
ql_dbg(ql_dbg_tgt_dif, vha, 0xe013,
"Term DIF cmd: lba[0x%llx|%lld] len[0x%x] "
"se_cmd=%p tag[%x] op %#x/%s",
cmd->lba, cmd->lba,
cmd->num_blks, &cmd->se_cmd,
cmd->atio.u.isp24.exchange_addr,
cmd->se_cmd.prot_op,
prot_op_str(cmd->se_cmd.prot_op));
if (ctio != NULL) {
struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio;
term = !(c->flags &
cpu_to_le16(OF_TERM_EXCH));
} else
term = 1;
if (term)
qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0);
return term;
}
/* ha->hardware_lock supposed to be held on entry */
static void *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
struct rsp_que *rsp, uint32_t handle, void *ctio)
{
void *cmd = NULL;
struct req_que *req;
int qid = GET_QID(handle);
uint32_t h = handle & ~QLA_TGT_HANDLE_MASK;
if (unlikely(h == QLA_TGT_SKIP_HANDLE))
return NULL;
if (qid == rsp->req->id) {
req = rsp->req;
} else if (vha->hw->req_q_map[qid]) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a,
"qla_target(%d): CTIO completion with different QID %d handle %x\n",
vha->vp_idx, rsp->id, handle);
req = vha->hw->req_q_map[qid];
} else {
return NULL;
}
h &= QLA_CMD_HANDLE_MASK;
if (h != QLA_TGT_NULL_HANDLE) {
if (unlikely(h >= req->num_outstanding_cmds)) {
ql_dbg(ql_dbg_tgt, vha, 0xe052,
"qla_target(%d): Wrong handle %x received\n",
vha->vp_idx, handle);
return NULL;
}
cmd = req->outstanding_cmds[h];
if (unlikely(cmd == NULL)) {
ql_dbg(ql_dbg_async, vha, 0xe053,
"qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n",
vha->vp_idx, handle, req->id, rsp->id);
return NULL;
}
req->outstanding_cmds[h] = NULL;
} else if (ctio != NULL) {
/* We can't get loop ID from CTIO7 */
ql_dbg(ql_dbg_tgt, vha, 0xe054,
"qla_target(%d): Wrong CTIO received: QLA24xx doesn't "
"support NULL handles\n", vha->vp_idx);
return NULL;
}
return cmd;
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio)
{
struct qla_hw_data *ha = vha->hw;
struct se_cmd *se_cmd;
struct qla_tgt_cmd *cmd;
struct qla_qpair *qpair = rsp->qpair;
if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) {
/* That could happen only in case of an error/reset/abort */
if (status != CTIO_SUCCESS) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d,
"Intermediate CTIO received"
" (status %x)\n", status);
}
return;
}
cmd = qlt_ctio_to_cmd(vha, rsp, handle, ctio);
if (cmd == NULL)
return;
if ((le16_to_cpu(((struct ctio7_from_24xx *)ctio)->flags) & CTIO7_FLAGS_DATA_OUT) &&
cmd->sess) {
qlt_chk_edif_rx_sa_delete_pending(vha, cmd->sess,
(struct ctio7_from_24xx *)ctio);
}
se_cmd = &cmd->se_cmd;
cmd->cmd_sent_to_fw = 0;
qlt_unmap_sg(vha, cmd);
if (unlikely(status != CTIO_SUCCESS)) {
switch (status & 0xFFFF) {
case CTIO_INVALID_RX_ID:
if (printk_ratelimit())
dev_info(&vha->hw->pdev->dev,
"qla_target(%d): CTIO with INVALID_RX_ID ATIO attr %x CTIO Flags %x|%x\n",
vha->vp_idx, cmd->atio.u.isp24.attr,
((cmd->ctio_flags >> 9) & 0xf),
cmd->ctio_flags);
break;
case CTIO_LIP_RESET:
case CTIO_TARGET_RESET:
case CTIO_ABORTED:
/* driver request abort via Terminate exchange */
case CTIO_TIMEOUT:
/* They are OK */
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058,
"qla_target(%d): CTIO with "
"status %#x received, state %x, se_cmd %p, "
"(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, "
"TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx,
status, cmd->state, se_cmd);
break;
case CTIO_PORT_LOGGED_OUT:
case CTIO_PORT_UNAVAILABLE:
{
int logged_out =
(status & 0xFFFF) == CTIO_PORT_LOGGED_OUT;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059,
"qla_target(%d): CTIO with %s status %x "
"received (state %x, se_cmd %p)\n", vha->vp_idx,
logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE",
status, cmd->state, se_cmd);
if (logged_out && cmd->sess) {
/*
* Session is already logged out, but we need
* to notify initiator, who's not aware of this
*/
cmd->sess->send_els_logo = 1;
ql_dbg(ql_dbg_disc, vha, 0x20f8,
"%s %d %8phC post del sess\n",
__func__, __LINE__, cmd->sess->port_name);
qlt_schedule_sess_for_deletion(cmd->sess);
}
break;
}
case CTIO_DIF_ERROR: {
struct ctio_crc_from_fw *crc =
(struct ctio_crc_from_fw *)ctio;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073,
"qla_target(%d): CTIO with DIF_ERROR status %x "
"received (state %x, ulp_cmd %p) actual_dif[0x%llx] "
"expect_dif[0x%llx]\n",
vha->vp_idx, status, cmd->state, se_cmd,
*((u64 *)&crc->actual_dif[0]),
*((u64 *)&crc->expected_dif[0]));
qlt_handle_dif_error(qpair, cmd, ctio);
return;
}
case CTIO_FAST_AUTH_ERR:
case CTIO_FAST_INCOMP_PAD_LEN:
case CTIO_FAST_INVALID_REQ:
case CTIO_FAST_SPI_ERR:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
"qla_target(%d): CTIO with EDIF error status 0x%x received (state %x, se_cmd %p\n",
vha->vp_idx, status, cmd->state, se_cmd);
break;
default:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b,
"qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n",
vha->vp_idx, status, cmd->state, se_cmd);
break;
}
/* "cmd->aborted" means
* cmd is already aborted/terminated, we don't
* need to terminate again. The exchange is already
* cleaned up/freed at FW level. Just cleanup at driver
* level.
*/
if ((cmd->state != QLA_TGT_STATE_NEED_DATA) &&
(!cmd->aborted)) {
cmd->trc_flags |= TRC_CTIO_ERR;
if (qlt_term_ctio_exchange(qpair, ctio, cmd, status))
return;
}
}
if (cmd->state == QLA_TGT_STATE_PROCESSED) {
cmd->trc_flags |= TRC_CTIO_DONE;
} else if (cmd->state == QLA_TGT_STATE_NEED_DATA) {
cmd->state = QLA_TGT_STATE_DATA_IN;
if (status == CTIO_SUCCESS)
cmd->write_data_transferred = 1;
ha->tgt.tgt_ops->handle_data(cmd);
return;
} else if (cmd->aborted) {
cmd->trc_flags |= TRC_CTIO_ABORTED;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e,
"Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag);
} else {
cmd->trc_flags |= TRC_CTIO_STRANGE;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c,
"qla_target(%d): A command in state (%d) should "
"not return a CTIO complete\n", vha->vp_idx, cmd->state);
}
if (unlikely(status != CTIO_SUCCESS) &&
!cmd->aborted) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n");
dump_stack();
}
ha->tgt.tgt_ops->free_cmd(cmd);
}
static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
uint8_t task_codes)
{
int fcp_task_attr;
switch (task_codes) {
case ATIO_SIMPLE_QUEUE:
fcp_task_attr = TCM_SIMPLE_TAG;
break;
case ATIO_HEAD_OF_QUEUE:
fcp_task_attr = TCM_HEAD_TAG;
break;
case ATIO_ORDERED_QUEUE:
fcp_task_attr = TCM_ORDERED_TAG;
break;
case ATIO_ACA_QUEUE:
fcp_task_attr = TCM_ACA_TAG;
break;
case ATIO_UNTAGGED:
fcp_task_attr = TCM_SIMPLE_TAG;
break;
default:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
"qla_target: unknown task code %x, use ORDERED instead\n",
task_codes);
fcp_task_attr = TCM_ORDERED_TAG;
break;
}
return fcp_task_attr;
}
/*
* Process context for I/O path into tcm_qla2xxx code
*/
static void __qlt_do_work(struct qla_tgt_cmd *cmd)
{
scsi_qla_host_t *vha = cmd->vha;
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess = cmd->sess;
struct atio_from_isp *atio = &cmd->atio;
unsigned char *cdb;
unsigned long flags;
uint32_t data_length;
int ret, fcp_task_attr, data_dir, bidi = 0;
struct qla_qpair *qpair = cmd->qpair;
cmd->cmd_in_wq = 0;
cmd->trc_flags |= TRC_DO_WORK;
if (cmd->aborted) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082,
"cmd with tag %u is aborted\n",
cmd->atio.u.isp24.exchange_addr);
goto out_term;
}
spin_lock_init(&cmd->cmd_lock);
cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
cmd->se_cmd.tag = le32_to_cpu(atio->u.isp24.exchange_addr);
if (atio->u.isp24.fcp_cmnd.rddata &&
atio->u.isp24.fcp_cmnd.wrdata) {
bidi = 1;
data_dir = DMA_TO_DEVICE;
} else if (atio->u.isp24.fcp_cmnd.rddata)
data_dir = DMA_FROM_DEVICE;
else if (atio->u.isp24.fcp_cmnd.wrdata)
data_dir = DMA_TO_DEVICE;
else
data_dir = DMA_NONE;
fcp_task_attr = qlt_get_fcp_task_attr(vha,
atio->u.isp24.fcp_cmnd.task_attr);
data_length = get_datalen_for_atio(atio);
ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length,
fcp_task_attr, data_dir, bidi);
if (ret != 0)
goto out_term;
/*
* Drop extra session reference from qlt_handle_cmd_for_atio().
*/
ha->tgt.tgt_ops->put_sess(sess);
return;
out_term:
ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd);
/*
* cmd has not sent to target yet, so pass NULL as the second
* argument to qlt_send_term_exchange() and free the memory here.
*/
cmd->trc_flags |= TRC_DO_WORK_ERR;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0);
qlt_decr_num_pend_cmds(vha);
cmd->vha->hw->tgt.tgt_ops->rel_cmd(cmd);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
ha->tgt.tgt_ops->put_sess(sess);
}
static void qlt_do_work(struct work_struct *work)
{
struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
scsi_qla_host_t *vha = cmd->vha;
unsigned long flags;
spin_lock_irqsave(&vha->cmd_list_lock, flags);
list_del(&cmd->cmd_list);
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
__qlt_do_work(cmd);
}
void qlt_clr_qp_table(struct scsi_qla_host *vha)
{
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
void *node;
u64 key = 0;
ql_log(ql_log_info, vha, 0x706c,
"User update Number of Active Qpairs %d\n",
ha->tgt.num_act_qpairs);
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
btree_remove64(&tgt->lun_qpair_map, key);
ha->base_qpair->lun_cnt = 0;
for (key = 0; key < ha->max_qpairs; key++)
if (ha->queue_pair_map[key])
ha->queue_pair_map[key]->lun_cnt = 0;
spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
}
static void qlt_assign_qpair(struct scsi_qla_host *vha,
struct qla_tgt_cmd *cmd)
{
struct qla_qpair *qpair, *qp;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_qpair_hint *h;
if (vha->flags.qpairs_available) {
h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun);
if (unlikely(!h)) {
/* spread lun to qpair ratio evently */
int lcnt = 0, rc;
struct scsi_qla_host *base_vha =
pci_get_drvdata(vha->hw->pdev);
qpair = vha->hw->base_qpair;
if (qpair->lun_cnt == 0) {
qpair->lun_cnt++;
h = qla_qpair_to_hint(tgt, qpair);
BUG_ON(!h);
rc = btree_insert64(&tgt->lun_qpair_map,
cmd->unpacked_lun, h, GFP_ATOMIC);
if (rc) {
qpair->lun_cnt--;
ql_log(ql_log_info, vha, 0xd037,
"Unable to insert lun %llx into lun_qpair_map\n",
cmd->unpacked_lun);
}
goto out;
} else {
lcnt = qpair->lun_cnt;
}
h = NULL;
list_for_each_entry(qp, &base_vha->qp_list,
qp_list_elem) {
if (qp->lun_cnt == 0) {
qp->lun_cnt++;
h = qla_qpair_to_hint(tgt, qp);
BUG_ON(!h);
rc = btree_insert64(&tgt->lun_qpair_map,
cmd->unpacked_lun, h, GFP_ATOMIC);
if (rc) {
qp->lun_cnt--;
ql_log(ql_log_info, vha, 0xd038,
"Unable to insert lun %llx into lun_qpair_map\n",
cmd->unpacked_lun);
}
qpair = qp;
goto out;
} else {
if (qp->lun_cnt < lcnt) {
lcnt = qp->lun_cnt;
qpair = qp;
continue;
}
}
}
BUG_ON(!qpair);
qpair->lun_cnt++;
h = qla_qpair_to_hint(tgt, qpair);
BUG_ON(!h);
rc = btree_insert64(&tgt->lun_qpair_map,
cmd->unpacked_lun, h, GFP_ATOMIC);
if (rc) {
qpair->lun_cnt--;
ql_log(ql_log_info, vha, 0xd039,
"Unable to insert lun %llx into lun_qpair_map\n",
cmd->unpacked_lun);
}
}
} else {
h = &tgt->qphints[0];
}
out:
cmd->qpair = h->qpair;
cmd->se_cmd.cpuid = h->cpuid;
}
static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
struct fc_port *sess,
struct atio_from_isp *atio)
{
struct qla_tgt_cmd *cmd;
cmd = vha->hw->tgt.tgt_ops->get_cmd(sess);
if (!cmd)
return NULL;
cmd->cmd_type = TYPE_TGT_CMD;
memcpy(&cmd->atio, atio, sizeof(*atio));
INIT_LIST_HEAD(&cmd->sess_cmd_list);
cmd->state = QLA_TGT_STATE_NEW;
cmd->tgt = vha->vha_tgt.qla_tgt;
qlt_incr_num_pend_cmds(vha);
cmd->vha = vha;
cmd->sess = sess;
cmd->loop_id = sess->loop_id;
cmd->conf_compl_supported = sess->conf_compl_supported;
cmd->trc_flags = 0;
cmd->jiffies_at_alloc = get_jiffies_64();
cmd->unpacked_lun = scsilun_to_int(
(struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
qlt_assign_qpair(vha, cmd);
cmd->reset_count = vha->hw->base_qpair->chip_reset;
cmd->vp_idx = vha->vp_idx;
cmd->edif = sess->edif.enable;
return cmd;
}
/* ha->hardware_lock supposed to be held on entry */
static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
struct atio_from_isp *atio)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct fc_port *sess;
struct qla_tgt_cmd *cmd;
unsigned long flags;
port_id_t id;
if (unlikely(tgt->tgt_stop)) {
ql_dbg(ql_dbg_io, vha, 0x3061,
"New command while device %p is shutting down\n", tgt);
return -ENODEV;
}
id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
if (IS_SW_RESV_ADDR(id))
return -EBUSY;
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
if (unlikely(!sess))
return -EFAULT;
/* Another WWN used to have our s_id. Our PLOGI scheduled its
* session deletion, but it's still in sess_del_work wq */
if (sess->deleted) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002,
"New command while old session %p is being deleted\n",
sess);
return -EFAULT;
}
/*
* Do kref_get() before returning + dropping qla_hw_data->hardware_lock.
*/
if (!kref_get_unless_zero(&sess->sess_kref)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
"%s: kref_get fail, %8phC oxid %x \n",
__func__, sess->port_name,
be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
return -EFAULT;
}
cmd = qlt_get_tag(vha, sess, atio);
if (!cmd) {
ql_dbg(ql_dbg_io, vha, 0x3062,
"qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
ha->tgt.tgt_ops->put_sess(sess);
return -EBUSY;
}
cmd->cmd_in_wq = 1;
cmd->trc_flags |= TRC_NEW_CMD;
spin_lock_irqsave(&vha->cmd_list_lock, flags);
list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
INIT_WORK(&cmd->work, qlt_do_work);
if (vha->flags.qpairs_available) {
queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work);
} else if (ha->msix_count) {
if (cmd->atio.u.isp24.fcp_cmnd.rddata)
queue_work(qla_tgt_wq, &cmd->work);
else
queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq,
&cmd->work);
} else {
queue_work(qla_tgt_wq, &cmd->work);
}
return 0;
}
/* ha->hardware_lock supposed to be held on entry */
static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun,
int fn, void *iocb, int flags)
{
struct scsi_qla_host *vha = sess->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_mgmt_cmd *mcmd;
struct atio_from_isp *a = (struct atio_from_isp *)iocb;
struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0];
mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
if (!mcmd) {
ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009,
"qla_target(%d): Allocation of management "
"command failed, some commands and their data could "
"leak\n", vha->vp_idx);
return -ENOMEM;
}
memset(mcmd, 0, sizeof(*mcmd));
mcmd->sess = sess;
if (iocb) {
memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
sizeof(mcmd->orig_iocb.imm_ntfy));
}
mcmd->tmr_func = fn;
mcmd->flags = flags;
mcmd->reset_count = ha->base_qpair->chip_reset;
mcmd->qpair = h->qpair;
mcmd->vha = vha;
mcmd->se_cmd.cpuid = h->cpuid;
mcmd->unpacked_lun = lun;
switch (fn) {
case QLA_TGT_LUN_RESET:
case QLA_TGT_CLEAR_TS:
case QLA_TGT_ABORT_TS:
abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id);
fallthrough;
case QLA_TGT_CLEAR_ACA:
h = qlt_find_qphint(vha, mcmd->unpacked_lun);
mcmd->qpair = h->qpair;
mcmd->se_cmd.cpuid = h->cpuid;
break;
case QLA_TGT_TARGET_RESET:
case QLA_TGT_NEXUS_LOSS_SESS:
case QLA_TGT_NEXUS_LOSS:
case QLA_TGT_ABORT_ALL:
default:
/* no-op */
break;
}
INIT_WORK(&mcmd->work, qlt_do_tmr_work);
queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq,
&mcmd->work);
return 0;
}
/* ha->hardware_lock supposed to be held on entry */
static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
{
struct atio_from_isp *a = (struct atio_from_isp *)iocb;
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess;
u64 unpacked_lun;
int fn;
unsigned long flags;
fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha,
a->u.isp24.fcp_hdr.s_id);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
unpacked_lun =
scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
if (sess == NULL || sess->deleted)
return -EFAULT;
return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
}
/* ha->hardware_lock supposed to be held on entry */
static int __qlt_abort_task(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *iocb, struct fc_port *sess)
{
struct atio_from_isp *a = (struct atio_from_isp *)iocb;
struct qla_hw_data *ha = vha->hw;
struct qla_tgt_mgmt_cmd *mcmd;
u64 unpacked_lun;
int rc;
mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC);
if (mcmd == NULL) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f,
"qla_target(%d): %s: Allocation of ABORT cmd failed\n",
vha->vp_idx, __func__);
return -ENOMEM;
}
memset(mcmd, 0, sizeof(*mcmd));
mcmd->sess = sess;
memcpy(&mcmd->orig_iocb.imm_ntfy, iocb,
sizeof(mcmd->orig_iocb.imm_ntfy));
unpacked_lun =
scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
mcmd->reset_count = ha->base_qpair->chip_reset;
mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK;
mcmd->qpair = ha->base_qpair;
rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func,
le16_to_cpu(iocb->u.isp2x.seq_id));
if (rc != 0) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060,
"qla_target(%d): tgt_ops->handle_tmr() failed: %d\n",
vha->vp_idx, rc);
mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool);
return -EFAULT;
}
return 0;
}
/* ha->hardware_lock supposed to be held on entry */
static int qlt_abort_task(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *iocb)
{
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess;
int loop_id;
unsigned long flags;
loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
if (sess == NULL) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025,
"qla_target(%d): task abort for unexisting "
"session\n", vha->vp_idx);
return qlt_sched_sess_work(vha->vha_tgt.qla_tgt,
QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb));
}
return __qlt_abort_task(vha, iocb, sess);
}
void qlt_logo_completion_handler(fc_port_t *fcport, int rc)
{
if (rc != MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093,
"%s: se_sess %p / sess %p from"
" port %8phC loop_id %#04x s_id %02x:%02x:%02x"
" LOGO failed: %#x\n",
__func__,
fcport->se_sess,
fcport,
fcport->port_name, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa, rc);
}
fcport->logout_completed = 1;
}
/*
* ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list)
*
* Schedules sessions with matching port_id/loop_id but different wwn for
* deletion. Returns existing session with matching wwn if present.
* Null otherwise.
*/
struct fc_port *
qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess)
{
struct fc_port *sess = NULL, *other_sess;
uint64_t other_wwn;
*conflict_sess = NULL;
list_for_each_entry(other_sess, &vha->vp_fcports, list) {
other_wwn = wwn_to_u64(other_sess->port_name);
if (wwn == other_wwn) {
WARN_ON(sess);
sess = other_sess;
continue;
}
/* find other sess with nport_id collision */
if (port_id.b24 == other_sess->d_id.b24) {
if (loop_id != other_sess->loop_id) {
ql_dbg(ql_dbg_disc, vha, 0x1000c,
"Invalidating sess %p loop_id %d wwn %llx.\n",
other_sess, other_sess->loop_id, other_wwn);
/*
* logout_on_delete is set by default, but another
* session that has the same s_id/loop_id combo
* might have cleared it when requested this session
* deletion, so don't touch it
*/
qlt_schedule_sess_for_deletion(other_sess);
} else {
/*
* Another wwn used to have our s_id/loop_id
* kill the session, but don't free the loop_id
*/
ql_dbg(ql_dbg_disc, vha, 0xf01b,
"Invalidating sess %p loop_id %d wwn %llx.\n",
other_sess, other_sess->loop_id, other_wwn);
other_sess->keep_nport_handle = 1;
if (other_sess->disc_state != DSC_DELETED)
*conflict_sess = other_sess;
qlt_schedule_sess_for_deletion(other_sess);
}
continue;
}
/* find other sess with nport handle collision */
if ((loop_id == other_sess->loop_id) &&
(loop_id != FC_NO_LOOP_ID)) {
ql_dbg(ql_dbg_disc, vha, 0x1000d,
"Invalidating sess %p loop_id %d wwn %llx.\n",
other_sess, other_sess->loop_id, other_wwn);
/* Same loop_id but different s_id
* Ok to kill and logout */
qlt_schedule_sess_for_deletion(other_sess);
}
}
return sess;
}
/* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */
static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
{
struct qla_tgt_sess_op *op;
struct qla_tgt_cmd *cmd;
uint32_t key;
int count = 0;
unsigned long flags;
key = (((u32)s_id->b.domain << 16) |
((u32)s_id->b.area << 8) |
((u32)s_id->b.al_pa));
spin_lock_irqsave(&vha->cmd_list_lock, flags);
list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) {
uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id);
if (op_key == key) {
op->aborted = true;
count++;
}
}
list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) {
uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id);
if (cmd_key == key) {
cmd->aborted = 1;
count++;
}
}
spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
return count;
}
static int qlt_handle_login(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *iocb)
{
struct fc_port *sess = NULL, *conflict_sess = NULL;
uint64_t wwn;
port_id_t port_id;
uint16_t loop_id, wd3_lo;
int res = 0;
struct qlt_plogi_ack_t *pla;
unsigned long flags;
lockdep_assert_held(&vha->hw->hardware_lock);
wwn = wwn_to_u64(iocb->u.isp24.port_name);
port_id.b.domain = iocb->u.isp24.port_id[2];
port_id.b.area = iocb->u.isp24.port_id[1];
port_id.b.al_pa = iocb->u.isp24.port_id[0];
port_id.b.rsvd_1 = 0;
loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
/* Mark all stale commands sitting in qla_tgt_wq for deletion */
abort_cmds_for_s_id(vha, &port_id);
if (wwn) {
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
sess = qlt_find_sess_invalidate_other(vha, wwn,
port_id, loop_id, &conflict_sess);
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
} else {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d Term INOT due to WWN=0 lid=%d, NportID %06X ",
__func__, __LINE__, loop_id, port_id.b24);
qlt_send_term_imm_notif(vha, iocb, 1);
goto out;
}
if (IS_SW_RESV_ADDR(port_id)) {
res = 1;
goto out;
}
if (vha->hw->flags.edif_enabled &&
!(vha->e_dbell.db_flags & EDB_ACTIVE) &&
iocb->u.isp24.status_subcode == ELS_PLOGI &&
!(le16_to_cpu(iocb->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d Term INOT due to app not available lid=%d, NportID %06X ",
__func__, __LINE__, loop_id, port_id.b24);
qlt_send_term_imm_notif(vha, iocb, 1);
goto out;
}
if (vha->hw->flags.edif_enabled) {
if (DBELL_INACTIVE(vha)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d Term INOT due to app not started lid=%d, NportID %06X ",
__func__, __LINE__, loop_id, port_id.b24);
qlt_send_term_imm_notif(vha, iocb, 1);
goto out;
} else if (iocb->u.isp24.status_subcode == ELS_PLOGI &&
!(le16_to_cpu(iocb->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d Term INOT due to unsecure lid=%d, NportID %06X ",
__func__, __LINE__, loop_id, port_id.b24);
qlt_send_term_imm_notif(vha, iocb, 1);
goto out;
}
}
pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
if (!pla) {
ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff,
"%s %d %8phC Term INOT due to mem alloc fail",
__func__, __LINE__,
iocb->u.isp24.port_name);
qlt_send_term_imm_notif(vha, iocb, 1);
goto out;
}
if (conflict_sess) {
conflict_sess->login_gen++;
qlt_plogi_ack_link(vha, pla, conflict_sess,
QLT_PLOGI_LINK_CONFLICT);
}
if (!sess) {
pla->ref_count++;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d %8phC post new sess\n",
__func__, __LINE__, iocb->u.isp24.port_name);
if (iocb->u.isp24.status_subcode == ELS_PLOGI)
qla24xx_post_newsess_work(vha, &port_id,
iocb->u.isp24.port_name,
iocb->u.isp24.u.plogi.node_name,
pla, 0);
else
qla24xx_post_newsess_work(vha, &port_id,
iocb->u.isp24.port_name, NULL,
pla, 0);
goto out;
}
if (sess->disc_state == DSC_UPD_FCPORT) {
u16 sec;
/*
* Remote port registration is still going on from
* previous login. Allow it to finish before we
* accept the new login.
*/
sess->next_disc_state = DSC_DELETE_PEND;
sec = jiffies_to_msecs(jiffies -
sess->jiffies_at_registration) / 1000;
if (sess->sec_since_registration < sec && sec &&
!(sec % 5)) {
sess->sec_since_registration = sec;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC - Slow Rport registration (%d Sec)\n",
__func__, sess->port_name, sec);
}
if (!conflict_sess) {
list_del(&pla->list);
kmem_cache_free(qla_tgt_plogi_cachep, pla);
}
qlt_send_term_imm_notif(vha, iocb, 1);
goto out;
}
qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
sess->d_id = port_id;
sess->login_gen++;
sess->loop_id = loop_id;
if (iocb->u.isp24.status_subcode == ELS_PLOGI) {
/* remote port has assigned Port ID */
if (N2N_TOPO(vha->hw) && fcport_is_bigger(sess))
vha->d_id = sess->d_id;
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %8phC - send port online\n",
__func__, sess->port_name);
qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
sess->d_id.b24);
}
if (iocb->u.isp24.status_subcode == ELS_PRLI) {
sess->fw_login_state = DSC_LS_PRLI_PEND;
sess->local = 0;
sess->loop_id = loop_id;
sess->d_id = port_id;
sess->fw_login_state = DSC_LS_PRLI_PEND;
wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
if (wd3_lo & BIT_7)
sess->conf_compl_supported = 1;
if ((wd3_lo & BIT_4) == 0)
sess->port_type = FCT_INITIATOR;
else
sess->port_type = FCT_TARGET;
} else
sess->fw_login_state = DSC_LS_PLOGI_PEND;
ql_dbg(ql_dbg_disc, vha, 0x20f9,
"%s %d %8phC DS %d\n",
__func__, __LINE__, sess->port_name, sess->disc_state);
switch (sess->disc_state) {
case DSC_DELETED:
case DSC_LOGIN_PEND:
qlt_plogi_ack_unref(vha, pla);
break;
default:
/*
* Under normal circumstances we want to release nport handle
* during LOGO process to avoid nport handle leaks inside FW.
* The exception is when LOGO is done while another PLOGI with
* the same nport handle is waiting as might be the case here.
* Note: there is always a possibily of a race where session
* deletion has already started for other reasons (e.g. ACL
* removal) and now PLOGI arrives:
* 1. if PLOGI arrived in FW after nport handle has been freed,
* FW must have assigned this PLOGI a new/same handle and we
* can proceed ACK'ing it as usual when session deletion
* completes.
* 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
* bit reached it, the handle has now been released. We'll
* get an error when we ACK this PLOGI. Nothing will be sent
* back to initiator. Initiator should eventually retry
* PLOGI and situation will correct itself.
*/
sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
(sess->d_id.b24 == port_id.b24));
ql_dbg(ql_dbg_disc, vha, 0x20f9,
"%s %d %8phC post del sess\n",
__func__, __LINE__, sess->port_name);
qlt_schedule_sess_for_deletion(sess);
break;
}
out:
return res;
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *iocb)
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess = NULL, *conflict_sess = NULL;
uint64_t wwn;
port_id_t port_id;
uint16_t loop_id;
uint16_t wd3_lo;
int res = 0;
unsigned long flags;
lockdep_assert_held(&ha->hardware_lock);
wwn = wwn_to_u64(iocb->u.isp24.port_name);
port_id.b.domain = iocb->u.isp24.port_id[2];
port_id.b.area = iocb->u.isp24.port_id[1];
port_id.b.al_pa = iocb->u.isp24.port_id[0];
port_id.b.rsvd_1 = 0;
loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
ql_dbg(ql_dbg_disc, vha, 0xf026,
"qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n",
vha->vp_idx, iocb->u.isp24.port_id[2],
iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
iocb->u.isp24.status_subcode, loop_id,
iocb->u.isp24.port_name);
/* res = 1 means ack at the end of thread
* res = 0 means ack async/later.
*/
switch (iocb->u.isp24.status_subcode) {
case ELS_PLOGI:
res = qlt_handle_login(vha, iocb);
break;
case ELS_PRLI:
if (N2N_TOPO(ha)) {
sess = qla2x00_find_fcport_by_wwpn(vha,
iocb->u.isp24.port_name, 1);
if (vha->hw->flags.edif_enabled && sess &&
(!(sess->flags & FCF_FCSP_DEVICE) ||
!sess->edif.authok)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d %8phC Term PRLI due to unauthorize PRLI\n",
__func__, __LINE__, iocb->u.isp24.port_name);
qlt_send_term_imm_notif(vha, iocb, 1);
break;
}
if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d %8phC Term PRLI due to PLOGI ACK not completed\n",
__func__, __LINE__,
iocb->u.isp24.port_name);
qlt_send_term_imm_notif(vha, iocb, 1);
break;
}
res = qlt_handle_login(vha, iocb);
break;
}
if (IS_SW_RESV_ADDR(port_id)) {
res = 1;
break;
}
wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
if (wwn) {
spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
sess = qlt_find_sess_invalidate_other(vha, wwn, port_id,
loop_id, &conflict_sess);
spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
}
if (conflict_sess) {
switch (conflict_sess->disc_state) {
case DSC_DELETED:
case DSC_DELETE_PEND:
break;
default:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
"PRLI with conflicting sess %p port %8phC\n",
conflict_sess, conflict_sess->port_name);
conflict_sess->fw_login_state =
DSC_LS_PORT_UNAVAIL;
qlt_send_term_imm_notif(vha, iocb, 1);
res = 0;
break;
}
}
if (sess != NULL) {
bool delete = false;
int sec;
if (vha->hw->flags.edif_enabled && sess &&
(!(sess->flags & FCF_FCSP_DEVICE) ||
!sess->edif.authok)) {
ql_dbg(ql_dbg_disc, vha, 0xffff,
"%s %d %8phC Term PRLI due to unauthorize prli\n",
__func__, __LINE__, iocb->u.isp24.port_name);
qlt_send_term_imm_notif(vha, iocb, 1);
break;
}
spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
switch (sess->fw_login_state) {
case DSC_LS_PLOGI_PEND:
case DSC_LS_PLOGI_COMP:
case DSC_LS_PRLI_COMP:
break;
default:
delete = true;
break;
}
switch (sess->disc_state) {
case DSC_UPD_FCPORT:
spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
flags);
sec = jiffies_to_msecs(jiffies -
sess->jiffies_at_registration)/1000;
if (sess->sec_since_registration < sec && sec &&
!(sec % 5)) {
sess->sec_since_registration = sec;
ql_dbg(ql_dbg_disc, sess->vha, 0xffff,
"%s %8phC : Slow Rport registration(%d Sec)\n",
__func__, sess->port_name, sec);
}
qlt_send_term_imm_notif(vha, iocb, 1);
return 0;
case DSC_LOGIN_PEND:
case DSC_GPDB:
case DSC_LOGIN_COMPLETE:
case DSC_ADISC:
delete = false;
break;
default:
break;
}
if (delete) {
spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
flags);
/*
* Impatient initiator sent PRLI before last
* PLOGI could finish. Will force him to re-try,
* while last one finishes.
*/
ql_log(ql_log_warn, sess->vha, 0xf095,
"sess %p PRLI received, before plogi ack.\n",
sess);
qlt_send_term_imm_notif(vha, iocb, 1);
res = 0;
break;
}
/*
* This shouldn't happen under normal circumstances,
* since we have deleted the old session during PLOGI
*/
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096,
"PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n",
sess->loop_id, sess, iocb->u.isp24.nport_handle);
sess->local = 0;
sess->loop_id = loop_id;
sess->d_id = port_id;
sess->fw_login_state = DSC_LS_PRLI_PEND;
if (wd3_lo & BIT_7)
sess->conf_compl_supported = 1;
if ((wd3_lo & BIT_4) == 0)
sess->port_type = FCT_INITIATOR;
else
sess->port_type = FCT_TARGET;
spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
}
res = 1; /* send notify ack */
/* Make session global (not used in fabric mode) */
if (ha->current_topology != ISP_CFG_F) {
if (sess) {
ql_dbg(ql_dbg_disc, vha, 0x20fa,
"%s %d %8phC post nack\n",
__func__, __LINE__, sess->port_name);
qla24xx_post_nack_work(vha, sess, iocb,
SRB_NACK_PRLI);
res = 0;
} else {
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
} else {
if (sess) {
ql_dbg(ql_dbg_disc, vha, 0x20fb,
"%s %d %8phC post nack\n",
__func__, __LINE__, sess->port_name);
qla24xx_post_nack_work(vha, sess, iocb,
SRB_NACK_PRLI);
res = 0;
}
}
break;
case ELS_TPRLO:
if (le16_to_cpu(iocb->u.isp24.flags) &
NOTIFY24XX_FLAGS_GLOBAL_TPRLO) {
loop_id = 0xFFFF;
qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS);
res = 1;
break;
}
fallthrough;
case ELS_LOGO:
case ELS_PRLO:
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = qla2x00_find_fcport_by_loopid(vha, loop_id);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
if (sess) {
sess->login_gen++;
sess->fw_login_state = DSC_LS_LOGO_PEND;
sess->logo_ack_needed = 1;
memcpy(sess->iocb, iocb, IOCB_SIZE);
}
res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
ql_dbg(ql_dbg_disc, vha, 0x20fc,
"%s: logo %llx res %d sess %p ",
__func__, wwn, res, sess);
if (res == 0) {
/*
* cmd went upper layer, look for qlt_xmit_tm_rsp()
* for LOGO_ACK & sess delete
*/
BUG_ON(!sess);
res = 0;
} else {
/* cmd did not go to upper layer. */
if (sess) {
qlt_schedule_sess_for_deletion(sess);
res = 0;
}
/* else logo will be ack */
}
break;
case ELS_PDISC:
case ELS_ADISC:
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
if (tgt->link_reinit_iocb_pending) {
qlt_send_notify_ack(ha->base_qpair,
&tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
tgt->link_reinit_iocb_pending = 0;
}
sess = qla2x00_find_fcport_by_wwpn(vha,
iocb->u.isp24.port_name, 1);
if (sess) {
ql_dbg(ql_dbg_disc, vha, 0x20fd,
"sess %p lid %d|%d DS %d LS %d\n",
sess, sess->loop_id, loop_id,
sess->disc_state, sess->fw_login_state);
}
res = 1; /* send notify ack */
break;
}
case ELS_FLOGI: /* should never happen */
default:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061,
"qla_target(%d): Unsupported ELS command %x "
"received\n", vha->vp_idx, iocb->u.isp24.status_subcode);
res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS);
break;
}
ql_dbg(ql_dbg_disc, vha, 0xf026,
"qla_target(%d): Exit ELS opcode: 0x%02x res %d\n",
vha->vp_idx, iocb->u.isp24.status_subcode, res);
return res;
}
/*
* ha->hardware_lock supposed to be held on entry.
* Might drop it, then reacquire.
*/
static void qlt_handle_imm_notify(struct scsi_qla_host *vha,
struct imm_ntfy_from_isp *iocb)
{
struct qla_hw_data *ha = vha->hw;
uint32_t add_flags = 0;
int send_notify_ack = 1;
uint16_t status;
lockdep_assert_held(&ha->hardware_lock);
status = le16_to_cpu(iocb->u.isp2x.status);
switch (status) {
case IMM_NTFY_LIP_RESET:
{
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032,
"qla_target(%d): LIP reset (loop %#x), subcode %x\n",
vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle),
iocb->u.isp24.status_subcode);
if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
send_notify_ack = 0;
break;
}
case IMM_NTFY_LIP_LINK_REINIT:
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033,
"qla_target(%d): LINK REINIT (loop %#x, "
"subcode %x)\n", vha->vp_idx,
le16_to_cpu(iocb->u.isp24.nport_handle),
iocb->u.isp24.status_subcode);
if (tgt->link_reinit_iocb_pending) {
qlt_send_notify_ack(ha->base_qpair,
&tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0);
}
memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb));
tgt->link_reinit_iocb_pending = 1;
/*
* QLogic requires to wait after LINK REINIT for possible
* PDISC or ADISC ELS commands
*/
send_notify_ack = 0;
break;
}
case IMM_NTFY_PORT_LOGOUT:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034,
"qla_target(%d): Port logout (loop "
"%#x, subcode %x)\n", vha->vp_idx,
le16_to_cpu(iocb->u.isp24.nport_handle),
iocb->u.isp24.status_subcode);
if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0)
send_notify_ack = 0;
/* The sessions will be cleared in the callback, if needed */
break;
case IMM_NTFY_GLBL_TPRLO:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035,
"qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status);
if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
send_notify_ack = 0;
/* The sessions will be cleared in the callback, if needed */
break;
case IMM_NTFY_PORT_CONFIG:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036,
"qla_target(%d): Port config changed (%x)\n", vha->vp_idx,
status);
if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0)
send_notify_ack = 0;
/* The sessions will be cleared in the callback, if needed */
break;
case IMM_NTFY_GLBL_LOGO:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a,
"qla_target(%d): Link failure detected\n",
vha->vp_idx);
/* I_T nexus loss */
if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0)
send_notify_ack = 0;
break;
case IMM_NTFY_IOCB_OVERFLOW:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b,
"qla_target(%d): Cannot provide requested "
"capability (IOCB overflowed the immediate notify "
"resource count)\n", vha->vp_idx);
break;
case IMM_NTFY_ABORT_TASK:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037,
"qla_target(%d): Abort Task (S %08x I %#x -> "
"L %#x)\n", vha->vp_idx,
le16_to_cpu(iocb->u.isp2x.seq_id),
GET_TARGET_ID(ha, (struct atio_from_isp *)iocb),
le16_to_cpu(iocb->u.isp2x.lun));
if (qlt_abort_task(vha, iocb) == 0)
send_notify_ack = 0;
break;
case IMM_NTFY_RESOURCE:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c,
"qla_target(%d): Out of resources, host %ld\n",
vha->vp_idx, vha->host_no);
break;
case IMM_NTFY_MSG_RX:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038,
"qla_target(%d): Immediate notify task %x\n",
vha->vp_idx, iocb->u.isp2x.task_flags);
break;
case IMM_NTFY_ELS:
if (qlt_24xx_handle_els(vha, iocb) == 0)
send_notify_ack = 0;
break;
default:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d,
"qla_target(%d): Received unknown immediate "
"notify status %x\n", vha->vp_idx, status);
break;
}
if (send_notify_ack)
qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0,
0, 0);
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
* This function sends busy to ISP 2xxx or 24xx.
*/
static int __qlt_send_busy(struct qla_qpair *qpair,
struct atio_from_isp *atio, uint16_t status)
{
struct scsi_qla_host *vha = qpair->vha;
struct ctio7_to_24xx *ctio24;
struct qla_hw_data *ha = vha->hw;
request_t *pkt;
struct fc_port *sess = NULL;
unsigned long flags;
u16 temp;
port_id_t id;
id = be_to_port_id(atio->u.isp24.fcp_hdr.s_id);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
sess = qla2x00_find_fcport_by_nportid(vha, &id, 1);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
if (!sess) {
qlt_send_term_exchange(qpair, NULL, atio, 1, 0);
return 0;
}
/* Sending marker isn't necessary, since we called from ISR */
pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL);
if (!pkt) {
ql_dbg(ql_dbg_io, vha, 0x3063,
"qla_target(%d): %s failed: unable to allocate "
"request packet", vha->vp_idx, __func__);
return -ENOMEM;
}
qpair->tgt_counters.num_q_full_sent++;
pkt->entry_count = 1;
pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
ctio24 = (struct ctio7_to_24xx *)pkt;
ctio24->entry_type = CTIO_TYPE7;
ctio24->nport_handle = cpu_to_le16(sess->loop_id);
ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT);
ctio24->vp_index = vha->vp_idx;
ctio24->initiator_id = be_id_to_le(atio->u.isp24.fcp_hdr.s_id);
ctio24->exchange_addr = atio->u.isp24.exchange_addr;
temp = (atio->u.isp24.attr << 9) |
CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS |
CTIO7_FLAGS_DONT_RET_CTIO;
ctio24->u.status1.flags = cpu_to_le16(temp);
/*
* CTIO from fw w/o se_cmd doesn't provide enough info to retry it,
* if the explicit conformation is used.
*/
ctio24->u.status1.ox_id =
cpu_to_le16(be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id));
ctio24->u.status1.scsi_status = cpu_to_le16(status);
ctio24->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio));
if (ctio24->u.status1.residual != 0)
ctio24->u.status1.scsi_status |= cpu_to_le16(SS_RESIDUAL_UNDER);
/* Memory Barrier */
wmb();
if (qpair->reqq_start_iocbs)
qpair->reqq_start_iocbs(qpair);
else
qla2x00_start_iocbs(vha, qpair->req);
return 0;
}
/*
* This routine is used to allocate a command for either a QFull condition
* (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go
* out previously.
*/
static void
qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
struct atio_from_isp *atio, uint16_t status, int qfull)
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess;
struct qla_tgt_cmd *cmd;
unsigned long flags;
if (unlikely(tgt->tgt_stop)) {
ql_dbg(ql_dbg_io, vha, 0x300a,
"New command while device %p is shutting down\n", tgt);
return;
}
if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) {
vha->hw->tgt.num_qfull_cmds_dropped++;
if (vha->hw->tgt.num_qfull_cmds_dropped >
vha->qla_stats.stat_max_qfull_cmds_dropped)
vha->qla_stats.stat_max_qfull_cmds_dropped =
vha->hw->tgt.num_qfull_cmds_dropped;
ql_dbg(ql_dbg_io, vha, 0x3068,
"qla_target(%d): %s: QFull CMD dropped[%d]\n",
vha->vp_idx, __func__,
vha->hw->tgt.num_qfull_cmds_dropped);
qlt_chk_exch_leak_thresh_hold(vha);
return;
}
sess = ha->tgt.tgt_ops->find_sess_by_s_id
(vha, atio->u.isp24.fcp_hdr.s_id);
if (!sess)
return;
cmd = ha->tgt.tgt_ops->get_cmd(sess);
if (!cmd) {
ql_dbg(ql_dbg_io, vha, 0x3009,
"qla_target(%d): %s: Allocation of cmd failed\n",
vha->vp_idx, __func__);
vha->hw->tgt.num_qfull_cmds_dropped++;
if (vha->hw->tgt.num_qfull_cmds_dropped >
vha->qla_stats.stat_max_qfull_cmds_dropped)
vha->qla_stats.stat_max_qfull_cmds_dropped =
vha->hw->tgt.num_qfull_cmds_dropped;
qlt_chk_exch_leak_thresh_hold(vha);
return;
}
qlt_incr_num_pend_cmds(vha);
INIT_LIST_HEAD(&cmd->cmd_list);
memcpy(&cmd->atio, atio, sizeof(*atio));
cmd->tgt = vha->vha_tgt.qla_tgt;
cmd->vha = vha;
cmd->reset_count = ha->base_qpair->chip_reset;
cmd->q_full = 1;
cmd->qpair = ha->base_qpair;
if (qfull) {
cmd->q_full = 1;
/* NOTE: borrowing the state field to carry the status */
cmd->state = status;
} else
cmd->term_exchg = 1;
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list);
vha->hw->tgt.num_qfull_cmds_alloc++;
if (vha->hw->tgt.num_qfull_cmds_alloc >
vha->qla_stats.stat_max_qfull_cmds_alloc)
vha->qla_stats.stat_max_qfull_cmds_alloc =
vha->hw->tgt.num_qfull_cmds_alloc;
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
}
int
qlt_free_qfull_cmds(struct qla_qpair *qpair)
{
struct scsi_qla_host *vha = qpair->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
struct qla_tgt_cmd *cmd, *tcmd;
struct list_head free_list, q_full_list;
int rc = 0;
if (list_empty(&ha->tgt.q_full_list))
return 0;
INIT_LIST_HEAD(&free_list);
INIT_LIST_HEAD(&q_full_list);
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
if (list_empty(&ha->tgt.q_full_list)) {
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
return 0;
}
list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list);
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) {
if (cmd->q_full)
/* cmd->state is a borrowed field to hold status */
rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state);
else if (cmd->term_exchg)
rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio);
if (rc == -ENOMEM)
break;
if (cmd->q_full)
ql_dbg(ql_dbg_io, vha, 0x3006,
"%s: busy sent for ox_id[%04x]\n", __func__,
be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
else if (cmd->term_exchg)
ql_dbg(ql_dbg_io, vha, 0x3007,
"%s: Term exchg sent for ox_id[%04x]\n", __func__,
be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
else
ql_dbg(ql_dbg_io, vha, 0x3008,
"%s: Unexpected cmd in QFull list %p\n", __func__,
cmd);
list_move_tail(&cmd->cmd_list, &free_list);
/* piggy back on hardware_lock for protection */
vha->hw->tgt.num_qfull_cmds_alloc--;
}
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
cmd = NULL;
list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) {
list_del(&cmd->cmd_list);
/* This cmd was never sent to TCM. There is no need
* to schedule free or call free_cmd
*/
qlt_free_cmd(cmd);
}
if (!list_empty(&q_full_list)) {
spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags);
list_splice(&q_full_list, &vha->hw->tgt.q_full_list);
spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags);
}
return rc;
}
static void
qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio,
uint16_t status)
{
int rc = 0;
struct scsi_qla_host *vha = qpair->vha;
rc = __qlt_send_busy(qpair, atio, status);
if (rc == -ENOMEM)
qlt_alloc_qfull_cmd(vha, atio, status, 1);
}
static int
qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
struct atio_from_isp *atio, uint8_t ha_locked)
{
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
return 0;
if (!ha_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_send_busy(qpair, atio, qla_sam_status);
if (!ha_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return 1;
}
/* ha->hardware_lock supposed to be held on entry */
/* called via callback from qla2xxx */
static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
struct atio_from_isp *atio, uint8_t ha_locked)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
int rc;
unsigned long flags = 0;
if (unlikely(tgt == NULL)) {
ql_dbg(ql_dbg_tgt, vha, 0x3064,
"ATIO pkt, but no tgt (ha %p)", ha);
return;
}
/*
* In tgt_stop mode we also should allow all requests to pass.
* Otherwise, some commands can stuck.
*/
tgt->atio_irq_cmd_count++;
switch (atio->u.raw.entry_type) {
case ATIO_TYPE7:
if (unlikely(atio->u.isp24.exchange_addr ==
cpu_to_le32(ATIO_EXCHANGE_ADDRESS_UNKNOWN))) {
ql_dbg(ql_dbg_io, vha, 0x3065,
"qla_target(%d): ATIO_TYPE7 "
"received with UNKNOWN exchange address, "
"sending QUEUE_FULL\n", vha->vp_idx);
if (!ha_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_send_busy(ha->base_qpair, atio, qla_sam_status);
if (!ha_locked)
spin_unlock_irqrestore(&ha->hardware_lock,
flags);
break;
}
if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) {
rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair,
atio, ha_locked);
if (rc != 0) {
tgt->atio_irq_cmd_count--;
return;
}
rc = qlt_handle_cmd_for_atio(vha, atio);
} else {
rc = qlt_handle_task_mgmt(vha, atio);
}
if (unlikely(rc != 0)) {
if (!ha_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
switch (rc) {
case -ENODEV:
ql_dbg(ql_dbg_tgt, vha, 0xe05f,
"qla_target: Unable to send command to target\n");
break;
case -EBADF:
ql_dbg(ql_dbg_tgt, vha, 0xe05f,
"qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
qlt_send_term_exchange(ha->base_qpair, NULL,
atio, 1, 0);
break;
case -EBUSY:
ql_dbg(ql_dbg_tgt, vha, 0xe060,
"qla_target(%d): Unable to send command to target, sending BUSY status\n",
vha->vp_idx);
qlt_send_busy(ha->base_qpair, atio,
tc_sam_status);
break;
default:
ql_dbg(ql_dbg_tgt, vha, 0xe060,
"qla_target(%d): Unable to send command to target, sending BUSY status\n",
vha->vp_idx);
qlt_send_busy(ha->base_qpair, atio,
qla_sam_status);
break;
}
if (!ha_locked)
spin_unlock_irqrestore(&ha->hardware_lock,
flags);
}
break;
case IMMED_NOTIFY_TYPE:
{
if (unlikely(atio->u.isp2x.entry_status != 0)) {
ql_dbg(ql_dbg_tgt, vha, 0xe05b,
"qla_target(%d): Received ATIO packet %x "
"with error status %x\n", vha->vp_idx,
atio->u.raw.entry_type,
atio->u.isp2x.entry_status);
break;
}
ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO");
if (!ha_locked)
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio);
if (!ha_locked)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
break;
}
default:
ql_dbg(ql_dbg_tgt, vha, 0xe05c,
"qla_target(%d): Received unknown ATIO atio "
"type %x\n", vha->vp_idx, atio->u.raw.entry_type);
break;
}
tgt->atio_irq_cmd_count--;
}
/*
* qpair lock is assume to be held
* rc = 0 : send terminate & abts respond
* rc != 0: do not send term & abts respond
*/
static int qlt_chk_unresolv_exchg(struct scsi_qla_host *vha,
struct qla_qpair *qpair, struct abts_resp_from_24xx_fw *entry)
{
struct qla_hw_data *ha = vha->hw;
int rc = 0;
/*
* Detect unresolved exchange. If the same ABTS is unable
* to terminate an existing command and the same ABTS loops
* between FW & Driver, then force FW dump. Under 1 jiff,
* we should see multiple loops.
*/
if (qpair->retry_term_exchg_addr == entry->exchange_addr_to_abort &&
qpair->retry_term_jiff == jiffies) {
/* found existing exchange */
qpair->retry_term_cnt++;
if (qpair->retry_term_cnt >= 5) {
rc = -EIO;
qpair->retry_term_cnt = 0;
ql_log(ql_log_warn, vha, 0xffff,
"Unable to send ABTS Respond. Dumping firmware.\n");
ql_dump_buffer(ql_dbg_tgt_mgt + ql_dbg_buffer,
vha, 0xffff, (uint8_t *)entry, sizeof(*entry));
if (qpair == ha->base_qpair)
ha->isp_ops->fw_dump(vha);
else
qla2xxx_dump_fw(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
} else if (qpair->retry_term_jiff != jiffies) {
qpair->retry_term_exchg_addr = entry->exchange_addr_to_abort;
qpair->retry_term_cnt = 0;
qpair->retry_term_jiff = jiffies;
}
return rc;
}
static void qlt_handle_abts_completion(struct scsi_qla_host *vha,
struct rsp_que *rsp, response_t *pkt)
{
struct abts_resp_from_24xx_fw *entry =
(struct abts_resp_from_24xx_fw *)pkt;
u32 h = pkt->handle & ~QLA_TGT_HANDLE_MASK;
struct qla_tgt_mgmt_cmd *mcmd;
struct qla_hw_data *ha = vha->hw;
mcmd = qlt_ctio_to_cmd(vha, rsp, pkt->handle, pkt);
if (mcmd == NULL && h != QLA_TGT_SKIP_HANDLE) {
ql_dbg(ql_dbg_async, vha, 0xe064,
"qla_target(%d): ABTS Comp without mcmd\n",
vha->vp_idx);
return;
}
if (mcmd)
vha = mcmd->vha;
vha->vha_tgt.qla_tgt->abts_resp_expected--;
ql_dbg(ql_dbg_tgt, vha, 0xe038,
"ABTS_RESP_24XX: compl_status %x\n",
entry->compl_status);
if (le16_to_cpu(entry->compl_status) != ABTS_RESP_COMPL_SUCCESS) {
if (le32_to_cpu(entry->error_subcode1) == 0x1E &&
le32_to_cpu(entry->error_subcode2) == 0) {
if (qlt_chk_unresolv_exchg(vha, rsp->qpair, entry)) {
ha->tgt.tgt_ops->free_mcmd(mcmd);
return;
}
qlt_24xx_retry_term_exchange(vha, rsp->qpair,
pkt, mcmd);
} else {
ql_dbg(ql_dbg_tgt, vha, 0xe063,
"qla_target(%d): ABTS_RESP_24XX failed %x (subcode %x:%x)",
vha->vp_idx, entry->compl_status,
entry->error_subcode1,
entry->error_subcode2);
ha->tgt.tgt_ops->free_mcmd(mcmd);
}
} else if (mcmd) {
ha->tgt.tgt_ops->free_mcmd(mcmd);
}
}
/* ha->hardware_lock supposed to be held on entry */
/* called via callback from qla2xxx */
static void qlt_response_pkt(struct scsi_qla_host *vha,
struct rsp_que *rsp, response_t *pkt)
{
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
if (unlikely(tgt == NULL)) {
ql_dbg(ql_dbg_tgt, vha, 0xe05d,
"qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n",
vha->vp_idx, pkt->entry_type, vha->hw);
return;
}
/*
* In tgt_stop mode we also should allow all requests to pass.
* Otherwise, some commands can stuck.
*/
switch (pkt->entry_type) {
case CTIO_CRC2:
case CTIO_TYPE7:
{
struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
qlt_do_ctio_completion(vha, rsp, entry->handle,
le16_to_cpu(entry->status)|(pkt->entry_status << 16),
entry);
break;
}
case ACCEPT_TGT_IO_TYPE:
{
struct atio_from_isp *atio = (struct atio_from_isp *)pkt;
int rc;
if (atio->u.isp2x.status !=
cpu_to_le16(ATIO_CDB_VALID)) {
ql_dbg(ql_dbg_tgt, vha, 0xe05e,
"qla_target(%d): ATIO with error "
"status %x received\n", vha->vp_idx,
le16_to_cpu(atio->u.isp2x.status));
break;
}
rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1);
if (rc != 0)
return;
rc = qlt_handle_cmd_for_atio(vha, atio);
if (unlikely(rc != 0)) {
switch (rc) {
case -ENODEV:
ql_dbg(ql_dbg_tgt, vha, 0xe05f,
"qla_target: Unable to send command to target\n");
break;
case -EBADF:
ql_dbg(ql_dbg_tgt, vha, 0xe05f,
"qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
qlt_send_term_exchange(rsp->qpair, NULL,
atio, 1, 0);
break;
case -EBUSY:
ql_dbg(ql_dbg_tgt, vha, 0xe060,
"qla_target(%d): Unable to send command to target, sending BUSY status\n",
vha->vp_idx);
qlt_send_busy(rsp->qpair, atio,
tc_sam_status);
break;
default:
ql_dbg(ql_dbg_tgt, vha, 0xe060,
"qla_target(%d): Unable to send command to target, sending BUSY status\n",
vha->vp_idx);
qlt_send_busy(rsp->qpair, atio,
qla_sam_status);
break;
}
}
}
break;
case CONTINUE_TGT_IO_TYPE:
{
struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
qlt_do_ctio_completion(vha, rsp, entry->handle,
le16_to_cpu(entry->status)|(pkt->entry_status << 16),
entry);
break;
}
case CTIO_A64_TYPE:
{
struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt;
qlt_do_ctio_completion(vha, rsp, entry->handle,
le16_to_cpu(entry->status)|(pkt->entry_status << 16),
entry);
break;
}
case IMMED_NOTIFY_TYPE:
ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n");
qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt);
break;
case NOTIFY_ACK_TYPE:
if (tgt->notify_ack_expected > 0) {
struct nack_to_isp *entry = (struct nack_to_isp *)pkt;
ql_dbg(ql_dbg_tgt, vha, 0xe036,
"NOTIFY_ACK seq %08x status %x\n",
le16_to_cpu(entry->u.isp2x.seq_id),
le16_to_cpu(entry->u.isp2x.status));
tgt->notify_ack_expected--;
if (entry->u.isp2x.status !=
cpu_to_le16(NOTIFY_ACK_SUCCESS)) {
ql_dbg(ql_dbg_tgt, vha, 0xe061,
"qla_target(%d): NOTIFY_ACK "
"failed %x\n", vha->vp_idx,
le16_to_cpu(entry->u.isp2x.status));
}
} else {
ql_dbg(ql_dbg_tgt, vha, 0xe062,
"qla_target(%d): Unexpected NOTIFY_ACK received\n",
vha->vp_idx);
}
break;
case ABTS_RECV_24XX:
ql_dbg(ql_dbg_tgt, vha, 0xe037,
"ABTS_RECV_24XX: instance %d\n", vha->vp_idx);
qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt);
break;
case ABTS_RESP_24XX:
if (tgt->abts_resp_expected > 0) {
qlt_handle_abts_completion(vha, rsp, pkt);
} else {
ql_dbg(ql_dbg_tgt, vha, 0xe064,
"qla_target(%d): Unexpected ABTS_RESP_24XX "
"received\n", vha->vp_idx);
}
break;
default:
ql_dbg(ql_dbg_tgt, vha, 0xe065,
"qla_target(%d): Received unknown response pkt "
"type %x\n", vha->vp_idx, pkt->entry_type);
break;
}
}
/*
* ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
*/
void qlt_async_event(uint16_t code, struct scsi_qla_host *vha,
uint16_t *mailbox)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
int login_code;
if (!tgt || tgt->tgt_stop || tgt->tgt_stopped)
return;
if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) &&
IS_QLA2100(ha))
return;
/*
* In tgt_stop mode we also should allow all requests to pass.
* Otherwise, some commands can stuck.
*/
switch (code) {
case MBA_RESET: /* Reset */
case MBA_SYSTEM_ERR: /* System Error */
case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a,
"qla_target(%d): System error async event %#x "
"occurred", vha->vp_idx, code);
break;
case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
case MBA_LOOP_UP:
{
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b,
"qla_target(%d): Async LOOP_UP occurred "
"(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx,
mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
if (tgt->link_reinit_iocb_pending) {
qlt_send_notify_ack(ha->base_qpair,
&tgt->link_reinit_iocb,
0, 0, 0, 0, 0, 0);
tgt->link_reinit_iocb_pending = 0;
}
break;
}
case MBA_LIP_OCCURRED:
case MBA_LOOP_DOWN:
case MBA_LIP_RESET:
case MBA_RSCN_UPDATE:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c,
"qla_target(%d): Async event %#x occurred "
"(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code,
mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
break;
case MBA_REJECTED_FCP_CMD:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017,
"qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)",
vha->vp_idx,
mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
if (mailbox[3] == 1) {
/* exchange starvation. */
vha->hw->exch_starvation++;
if (vha->hw->exch_starvation > 5) {
ql_log(ql_log_warn, vha, 0xd03a,
"Exchange starvation-. Resetting RISC\n");
vha->hw->exch_starvation = 0;
if (IS_P3P_TYPE(vha->hw))
set_bit(FCOE_CTX_RESET_NEEDED,
&vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
}
break;
case MBA_PORT_UPDATE:
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d,
"qla_target(%d): Port update async event %#x "
"occurred: updating the ports database (m[0]=%x, m[1]=%x, "
"m[2]=%x, m[3]=%x)", vha->vp_idx, code,
mailbox[0], mailbox[1], mailbox[2], mailbox[3]);
login_code = mailbox[2];
if (login_code == 0x4) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e,
"Async MB 2: Got PLOGI Complete\n");
vha->hw->exch_starvation = 0;
} else if (login_code == 0x7)
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f,
"Async MB 2: Port Logged Out\n");
break;
default:
break;
}
}
static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
uint16_t loop_id)
{
fc_port_t *fcport, *tfcp, *del;
int rc;
unsigned long flags;
u8 newfcport = 0;
fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
if (!fcport) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
"qla_target(%d): Allocation of tmp FC port failed",
vha->vp_idx);
return NULL;
}
fcport->loop_id = loop_id;
rc = qla24xx_gpdb_wait(vha, fcport, 0);
if (rc != QLA_SUCCESS) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070,
"qla_target(%d): Failed to retrieve fcport "
"information -- get_port_database() returned %x "
"(loop_id=0x%04x)", vha->vp_idx, rc, loop_id);
kfree(fcport);
return NULL;
}
del = NULL;
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1);
if (tfcp) {
tfcp->d_id = fcport->d_id;
tfcp->port_type = fcport->port_type;
tfcp->supported_classes = fcport->supported_classes;
tfcp->flags |= fcport->flags;
tfcp->scan_state = QLA_FCPORT_FOUND;
del = fcport;
fcport = tfcp;
} else {
if (vha->hw->current_topology == ISP_CFG_F)
fcport->flags |= FCF_FABRIC_DEVICE;
list_add_tail(&fcport->list, &vha->vp_fcports);
if (!IS_SW_RESV_ADDR(fcport->d_id))
vha->fcport_count++;
fcport->login_gen++;
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
fcport->login_succ = 1;
newfcport = 1;
}
fcport->deleted = 0;
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
switch (vha->host->active_mode) {
case MODE_INITIATOR:
case MODE_DUAL:
if (newfcport) {
if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) {
qla24xx_sched_upd_fcport(fcport);
} else {
ql_dbg(ql_dbg_disc, vha, 0x20ff,
"%s %d %8phC post gpsc fcp_cnt %d\n",
__func__, __LINE__, fcport->port_name, vha->fcport_count);
qla24xx_post_gpsc_work(vha, fcport);
}
}
break;
case MODE_TARGET:
default:
break;
}
if (del)
qla2x00_free_fcport(del);
return fcport;
}
/* Must be called under tgt_mutex */
static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha,
be_id_t s_id)
{
struct fc_port *sess = NULL;
fc_port_t *fcport = NULL;
int rc, global_resets;
uint16_t loop_id = 0;
if (s_id.domain == 0xFF && s_id.area == 0xFC) {
/*
* This is Domain Controller, so it should be
* OK to drop SCSI commands from it.
*/
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042,
"Unable to find initiator with S_ID %x:%x:%x",
s_id.domain, s_id.area, s_id.al_pa);
return NULL;
}
mutex_lock(&vha->vha_tgt.tgt_mutex);
retry:
global_resets =
atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count);
rc = qla24xx_get_loop_id(vha, s_id, &loop_id);
if (rc != 0) {
mutex_unlock(&vha->vha_tgt.tgt_mutex);
ql_log(ql_log_info, vha, 0xf071,
"qla_target(%d): Unable to find "
"initiator with S_ID %x:%x:%x",
vha->vp_idx, s_id.domain, s_id.area, s_id.al_pa);
if (rc == -ENOENT) {
qlt_port_logo_t logo;
logo.id = be_to_port_id(s_id);
logo.cmd_count = 1;
qlt_send_first_logo(vha, &logo);
}
return NULL;
}
fcport = qlt_get_port_database(vha, loop_id);
if (!fcport) {
mutex_unlock(&vha->vha_tgt.tgt_mutex);
return NULL;
}
if (global_resets !=
atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) {
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043,
"qla_target(%d): global reset during session discovery "
"(counter was %d, new %d), retrying", vha->vp_idx,
global_resets,
atomic_read(&vha->vha_tgt.
qla_tgt->tgt_global_resets_count));
goto retry;
}
sess = qlt_create_sess(vha, fcport, true);
mutex_unlock(&vha->vha_tgt.tgt_mutex);
return sess;
}
static void qlt_abort_work(struct qla_tgt *tgt,
struct qla_tgt_sess_work_param *prm)
{
struct scsi_qla_host *vha = tgt->vha;
struct qla_hw_data *ha = vha->hw;
struct fc_port *sess = NULL;
unsigned long flags = 0, flags2 = 0;
be_id_t s_id;
int rc;
spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
if (tgt->tgt_stop)
goto out_term2;
s_id = le_id_to_be(prm->abts.fcp_hdr_le.s_id);
sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
if (!sess) {
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
sess = qlt_make_local_sess(vha, s_id);
/* sess has got an extra creation ref */
spin_lock_irqsave(&ha->tgt.sess_lock, flags2);
if (!sess)
goto out_term2;
} else {
if (sess->deleted) {
sess = NULL;
goto out_term2;
}
if (!kref_get_unless_zero(&sess->sess_kref)) {
ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c,
"%s: kref_get fail %8phC \n",
__func__, sess->port_name);
sess = NULL;
goto out_term2;
}
}
rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
ha->tgt.tgt_ops->put_sess(sess);
if (rc != 0)
goto out_term;
return;
out_term2:
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
out_term:
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts,
FCP_TMF_REJECTED, false);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
static void qlt_sess_work_fn(struct work_struct *work)
{
struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
struct scsi_qla_host *vha = tgt->vha;
unsigned long flags;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt);
spin_lock_irqsave(&tgt->sess_work_lock, flags);
while (!list_empty(&tgt->sess_works_list)) {
struct qla_tgt_sess_work_param *prm = list_entry(
tgt->sess_works_list.next, typeof(*prm),
sess_works_list_entry);
/*
* This work can be scheduled on several CPUs at time, so we
* must delete the entry to eliminate double processing
*/
list_del(&prm->sess_works_list_entry);
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
switch (prm->type) {
case QLA_TGT_SESS_WORK_ABORT:
qlt_abort_work(tgt, prm);
break;
default:
BUG_ON(1);
break;
}
spin_lock_irqsave(&tgt->sess_work_lock, flags);
kfree(prm);
}
spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
}
/* Must be called under tgt_host_action_mutex */
int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
{
struct qla_tgt *tgt;
int rc, i;
struct qla_qpair_hint *h;
if (!QLA_TGT_MODE_ENABLED())
return 0;
if (!IS_TGT_MODE_CAPABLE(ha)) {
ql_log(ql_log_warn, base_vha, 0xe070,
"This adapter does not support target mode.\n");
return 0;
}
ql_dbg(ql_dbg_tgt, base_vha, 0xe03b,
"Registering target for host %ld(%p).\n", base_vha->host_no, ha);
BUG_ON(base_vha->vha_tgt.qla_tgt != NULL);
tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL);
if (!tgt) {
ql_dbg(ql_dbg_tgt, base_vha, 0xe066,
"Unable to allocate struct qla_tgt\n");
return -ENOMEM;
}
tgt->qphints = kcalloc(ha->max_qpairs + 1,
sizeof(struct qla_qpair_hint),
GFP_KERNEL);
if (!tgt->qphints) {
kfree(tgt);
ql_log(ql_log_warn, base_vha, 0x0197,
"Unable to allocate qpair hints.\n");
return -ENOMEM;
}
qla2xxx_driver_template.supported_mode |= MODE_TARGET;
rc = btree_init64(&tgt->lun_qpair_map);
if (rc) {
kfree(tgt->qphints);
kfree(tgt);
ql_log(ql_log_info, base_vha, 0x0198,
"Unable to initialize lun_qpair_map btree\n");
return -EIO;
}
h = &tgt->qphints[0];
h->qpair = ha->base_qpair;
INIT_LIST_HEAD(&h->hint_elem);
h->cpuid = ha->base_qpair->cpuid;
list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list);
for (i = 0; i < ha->max_qpairs; i++) {
unsigned long flags;
struct qla_qpair *qpair = ha->queue_pair_map[i];
h = &tgt->qphints[i + 1];
INIT_LIST_HEAD(&h->hint_elem);
if (qpair) {
h->qpair = qpair;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
list_add_tail(&h->hint_elem, &qpair->hints_list);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
h->cpuid = qpair->cpuid;
}
}
tgt->ha = ha;
tgt->vha = base_vha;
init_waitqueue_head(&tgt->waitQ);
spin_lock_init(&tgt->sess_work_lock);
INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
INIT_LIST_HEAD(&tgt->sess_works_list);
atomic_set(&tgt->tgt_global_resets_count, 0);
base_vha->vha_tgt.qla_tgt = tgt;
ql_dbg(ql_dbg_tgt, base_vha, 0xe067,
"qla_target(%d): using 64 Bit PCI addressing",
base_vha->vp_idx);
/* 3 is reserved */
tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3);
mutex_lock(&qla_tgt_mutex);
list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist);
mutex_unlock(&qla_tgt_mutex);
if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target)
ha->tgt.tgt_ops->add_target(base_vha);
return 0;
}
/* Must be called under tgt_host_action_mutex */
int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
{
if (!vha->vha_tgt.qla_tgt)
return 0;
if (vha->fc_vport) {
qlt_release(vha->vha_tgt.qla_tgt);
return 0;
}
/* free left over qfull cmds */
qlt_init_term_exchange(vha);
ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
vha->host_no, ha);
qlt_release(vha->vha_tgt.qla_tgt);
return 0;
}
void qla_remove_hostmap(struct qla_hw_data *ha)
{
struct scsi_qla_host *node;
u32 key = 0;
btree_for_each_safe32(&ha->host_map, key, node)
btree_remove32(&ha->host_map, key);
btree_destroy32(&ha->host_map);
}
static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn,
unsigned char *b)
{
pr_debug("qla2xxx HW vha->node_name: %8phC\n", vha->node_name);
pr_debug("qla2xxx HW vha->port_name: %8phC\n", vha->port_name);
put_unaligned_be64(wwpn, b);
pr_debug("qla2xxx passed configfs WWPN: %8phC\n", b);
}
/**
* qlt_lport_register - register lport with external module
*
* @target_lport_ptr: pointer for tcm_qla2xxx specific lport data
* @phys_wwpn: physical port WWPN
* @npiv_wwpn: NPIV WWPN
* @npiv_wwnn: NPIV WWNN
* @callback: lport initialization callback for tcm_qla2xxx code
*/
int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn,
u64 npiv_wwpn, u64 npiv_wwnn,
int (*callback)(struct scsi_qla_host *, void *, u64, u64))
{
struct qla_tgt *tgt;
struct scsi_qla_host *vha;
struct qla_hw_data *ha;
struct Scsi_Host *host;
unsigned long flags;
int rc;
u8 b[WWN_SIZE];
mutex_lock(&qla_tgt_mutex);
list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) {
vha = tgt->vha;
ha = vha->hw;
host = vha->host;
if (!host)
continue;
if (!(host->hostt->supported_mode & MODE_TARGET))
continue;
if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
continue;
spin_lock_irqsave(&ha->hardware_lock, flags);
if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) {
pr_debug("MODE_TARGET already active on qla2xxx(%d)\n",
host->host_no);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
continue;
}
if (tgt->tgt_stop) {
pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n",
host->host_no);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
continue;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (!scsi_host_get(host)) {
ql_dbg(ql_dbg_tgt, vha, 0xe068,
"Unable to scsi_host_get() for"
" qla2xxx scsi_host\n");
continue;
}
qlt_lport_dump(vha, phys_wwpn, b);
if (memcmp(vha->port_name, b, WWN_SIZE)) {
scsi_host_put(host);
continue;
}
rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn);
if (rc != 0)
scsi_host_put(host);
mutex_unlock(&qla_tgt_mutex);
return rc;
}
mutex_unlock(&qla_tgt_mutex);
return -ENODEV;
}
EXPORT_SYMBOL(qlt_lport_register);
/**
* qlt_lport_deregister - Degister lport
*
* @vha: Registered scsi_qla_host pointer
*/
void qlt_lport_deregister(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct Scsi_Host *sh = vha->host;
/*
* Clear the target_lport_ptr qla_target_template pointer in qla_hw_data
*/
vha->vha_tgt.target_lport_ptr = NULL;
ha->tgt.tgt_ops = NULL;
/*
* Release the Scsi_Host reference for the underlying qla2xxx host
*/
scsi_host_put(sh);
}
EXPORT_SYMBOL(qlt_lport_deregister);
/* Must be called under HW lock */
void qlt_set_mode(struct scsi_qla_host *vha)
{
switch (vha->qlini_mode) {
case QLA2XXX_INI_MODE_DISABLED:
case QLA2XXX_INI_MODE_EXCLUSIVE:
vha->host->active_mode = MODE_TARGET;
break;
case QLA2XXX_INI_MODE_ENABLED:
vha->host->active_mode = MODE_INITIATOR;
break;
case QLA2XXX_INI_MODE_DUAL:
vha->host->active_mode = MODE_DUAL;
break;
default:
break;
}
}
/* Must be called under HW lock */
static void qlt_clear_mode(struct scsi_qla_host *vha)
{
switch (vha->qlini_mode) {
case QLA2XXX_INI_MODE_DISABLED:
vha->host->active_mode = MODE_UNKNOWN;
break;
case QLA2XXX_INI_MODE_EXCLUSIVE:
vha->host->active_mode = MODE_INITIATOR;
break;
case QLA2XXX_INI_MODE_ENABLED:
case QLA2XXX_INI_MODE_DUAL:
vha->host->active_mode = MODE_INITIATOR;
break;
default:
break;
}
}
/*
* qla_tgt_enable_vha - NO LOCK HELD
*
* host_reset, bring up w/ Target Mode Enabled
*/
void
qlt_enable_vha(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
unsigned long flags;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
if (!tgt) {
ql_dbg(ql_dbg_tgt, vha, 0xe069,
"Unable to locate qla_tgt pointer from"
" struct qla_hw_data\n");
dump_stack();
return;
}
if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED)
return;
if (ha->tgt.num_act_qpairs > ha->max_qpairs)
ha->tgt.num_act_qpairs = ha->max_qpairs;
spin_lock_irqsave(&ha->hardware_lock, flags);
tgt->tgt_stopped = 0;
qlt_set_mode(vha);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
mutex_lock(&ha->optrom_mutex);
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021,
"%s.\n", __func__);
if (vha->vp_idx) {
qla24xx_disable_vp(vha);
qla24xx_enable_vp(vha);
} else {
set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
qla2xxx_wake_dpc(base_vha);
WARN_ON_ONCE(qla2x00_wait_for_hba_online(base_vha) !=
QLA_SUCCESS);
}
mutex_unlock(&ha->optrom_mutex);
}
EXPORT_SYMBOL(qlt_enable_vha);
/*
* qla_tgt_disable_vha - NO LOCK HELD
*
* Disable Target Mode and reset the adapter
*/
static void qlt_disable_vha(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
unsigned long flags;
if (!tgt) {
ql_dbg(ql_dbg_tgt, vha, 0xe06a,
"Unable to locate qla_tgt pointer from"
" struct qla_hw_data\n");
dump_stack();
return;
}
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_clear_mode(vha);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
/*
* We are expecting the offline state.
* QLA_FUNCTION_FAILED means that adapter is offline.
*/
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
ql_dbg(ql_dbg_tgt, vha, 0xe081,
"adapter is offline\n");
}
/*
* Called from qla_init.c:qla24xx_vport_create() contex to setup
* the target mode specific struct scsi_qla_host and struct qla_hw_data
* members.
*/
void
qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
{
vha->vha_tgt.qla_tgt = NULL;
mutex_init(&vha->vha_tgt.tgt_mutex);
mutex_init(&vha->vha_tgt.tgt_host_action_mutex);
INIT_LIST_HEAD(&vha->unknown_atio_list);
INIT_DELAYED_WORK(&vha->unknown_atio_work, qlt_unknown_atio_work_fn);
qlt_clear_mode(vha);
/*
* NOTE: Currently the value is kept the same for <24xx and
* >=24xx ISPs. If it is necessary to change it,
* the check should be added for specific ISPs,
* assigning the value appropriately.
*/
ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
qlt_add_target(ha, vha);
}
u8
qlt_rff_id(struct scsi_qla_host *vha)
{
u8 fc4_feature = 0;
/*
* FC-4 Feature bit 0 indicates target functionality to the name server.
*/
if (qla_tgt_mode_enabled(vha)) {
fc4_feature = BIT_0;
} else if (qla_ini_mode_enabled(vha)) {
fc4_feature = BIT_1;
} else if (qla_dual_mode_enabled(vha))
fc4_feature = BIT_0 | BIT_1;
return fc4_feature;
}
/*
* qlt_init_atio_q_entries() - Initializes ATIO queue entries.
* @ha: HA context
*
* Beginning of ATIO ring has initialization control block already built
* by nvram config routine.
*
* Returns 0 on success.
*/
void
qlt_init_atio_q_entries(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
uint16_t cnt;
struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring;
if (qla_ini_mode_enabled(vha))
return;
for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) {
pkt->u.raw.signature = cpu_to_le32(ATIO_PROCESSED);
pkt++;
}
}
/*
* qlt_24xx_process_atio_queue() - Process ATIO queue entries.
* @ha: SCSI driver HA context
*/
void
qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked)
{
struct qla_hw_data *ha = vha->hw;
struct atio_from_isp *pkt;
int cnt, i;
if (!ha->flags.fw_started)
return;
while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
cnt = pkt->u.raw.entry_count;
if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
/*
* This packet is corrupted. The header + payload
* can not be trusted. There is no point in passing
* it further up.
*/
ql_log(ql_log_warn, vha, 0xd03c,
"corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
&pkt->u.isp24.fcp_hdr.s_id,
be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
pkt->u.isp24.exchange_addr, pkt);
adjust_corrupted_atio(pkt);
qlt_send_term_exchange(ha->base_qpair, NULL, pkt,
ha_locked, 0);
} else {
qlt_24xx_atio_pkt_all_vps(vha,
(struct atio_from_isp *)pkt, ha_locked);
}
for (i = 0; i < cnt; i++) {
ha->tgt.atio_ring_index++;
if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) {
ha->tgt.atio_ring_index = 0;
ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
} else
ha->tgt.atio_ring_ptr++;
pkt->u.raw.signature = cpu_to_le32(ATIO_PROCESSED);
pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
}
wmb();
}
/* Adjust ring index */
wrt_reg_dword(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index);
}
void
qlt_24xx_config_rings(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct qla_msix_entry *msix = &ha->msix_entries[2];
struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb;
if (!QLA_TGT_MODE_ENABLED())
return;
wrt_reg_dword(ISP_ATIO_Q_IN(vha), 0);
wrt_reg_dword(ISP_ATIO_Q_OUT(vha), 0);
rd_reg_dword(ISP_ATIO_Q_OUT(vha));
if (ha->flags.msix_enabled) {
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
icb->msix_atio = cpu_to_le16(msix->entry);
icb->firmware_options_2 &= cpu_to_le32(~BIT_26);
ql_dbg(ql_dbg_init, vha, 0xf072,
"Registering ICB vector 0x%x for atio que.\n",
msix->entry);
}
} else {
/* INTx|MSI */
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
icb->msix_atio = 0;
icb->firmware_options_2 |= cpu_to_le32(BIT_26);
ql_dbg(ql_dbg_init, vha, 0xf072,
"%s: Use INTx for ATIOQ.\n", __func__);
}
}
}
void
qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
{
struct qla_hw_data *ha = vha->hw;
u32 tmp;
if (!QLA_TGT_MODE_ENABLED())
return;
if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
if (!ha->tgt.saved_set) {
/* We save only once */
ha->tgt.saved_exchange_count = nv->exchange_count;
ha->tgt.saved_firmware_options_1 =
nv->firmware_options_1;
ha->tgt.saved_firmware_options_2 =
nv->firmware_options_2;
ha->tgt.saved_firmware_options_3 =
nv->firmware_options_3;
ha->tgt.saved_set = 1;
}
if (qla_tgt_mode_enabled(vha))
nv->exchange_count = cpu_to_le16(0xFFFF);
else /* dual */
nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
/* Enable target mode */
nv->firmware_options_1 |= cpu_to_le32(BIT_4);
/* Disable ini mode, if requested */
if (qla_tgt_mode_enabled(vha))
nv->firmware_options_1 |= cpu_to_le32(BIT_5);
/* Disable Full Login after LIP */
nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
/* Enable initial LIP */
nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
if (ql2xtgt_tape_enable)
/* Enable FC Tape support */
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
else
/* Disable FC Tape support */
nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
/* Disable Full Login after LIP */
nv->host_p &= cpu_to_le32(~BIT_10);
/*
* clear BIT 15 explicitly as we have seen at least
* a couple of instances where this was set and this
* was causing the firmware to not be initialized.
*/
nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
/* Enable target PRLI control */
nv->firmware_options_2 |= cpu_to_le32(BIT_14);
if (IS_QLA25XX(ha)) {
/* Change Loop-prefer to Pt-Pt */
tmp = ~(BIT_4|BIT_5|BIT_6);
nv->firmware_options_2 &= cpu_to_le32(tmp);
tmp = P2P << 4;
nv->firmware_options_2 |= cpu_to_le32(tmp);
}
} else {
if (ha->tgt.saved_set) {
nv->exchange_count = ha->tgt.saved_exchange_count;
nv->firmware_options_1 =
ha->tgt.saved_firmware_options_1;
nv->firmware_options_2 =
ha->tgt.saved_firmware_options_2;
nv->firmware_options_3 =
ha->tgt.saved_firmware_options_3;
}
return;
}
if (ha->base_qpair->enable_class_2) {
if (vha->flags.init_done)
fc_host_supported_classes(vha->host) =
FC_COS_CLASS2 | FC_COS_CLASS3;
nv->firmware_options_2 |= cpu_to_le32(BIT_8);
} else {
if (vha->flags.init_done)
fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
}
}
void
qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha,
struct init_cb_24xx *icb)
{
struct qla_hw_data *ha = vha->hw;
if (!QLA_TGT_MODE_ENABLED())
return;
if (ha->tgt.node_name_set) {
memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
icb->firmware_options_1 |= cpu_to_le32(BIT_14);
}
}
void
qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
{
struct qla_hw_data *ha = vha->hw;
u32 tmp;
if (!QLA_TGT_MODE_ENABLED())
return;
if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
if (!ha->tgt.saved_set) {
/* We save only once */
ha->tgt.saved_exchange_count = nv->exchange_count;
ha->tgt.saved_firmware_options_1 =
nv->firmware_options_1;
ha->tgt.saved_firmware_options_2 =
nv->firmware_options_2;
ha->tgt.saved_firmware_options_3 =
nv->firmware_options_3;
ha->tgt.saved_set = 1;
}
if (qla_tgt_mode_enabled(vha))
nv->exchange_count = cpu_to_le16(0xFFFF);
else /* dual */
nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
/* Enable target mode */
nv->firmware_options_1 |= cpu_to_le32(BIT_4);
/* Disable ini mode, if requested */
if (qla_tgt_mode_enabled(vha))
nv->firmware_options_1 |= cpu_to_le32(BIT_5);
/* Disable Full Login after LIP */
nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
/* Enable initial LIP */
nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
/*
* clear BIT 15 explicitly as we have seen at
* least a couple of instances where this was set
* and this was causing the firmware to not be
* initialized.
*/
nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
if (ql2xtgt_tape_enable)
/* Enable FC tape support */
nv->firmware_options_2 |= cpu_to_le32(BIT_12);
else
/* Disable FC tape support */
nv->firmware_options_2 &= cpu_to_le32(~BIT_12);
/* Disable Full Login after LIP */
nv->host_p &= cpu_to_le32(~BIT_10);
/* Enable target PRLI control */
nv->firmware_options_2 |= cpu_to_le32(BIT_14);
/* Change Loop-prefer to Pt-Pt */
tmp = ~(BIT_4|BIT_5|BIT_6);
nv->firmware_options_2 &= cpu_to_le32(tmp);
tmp = P2P << 4;
nv->firmware_options_2 |= cpu_to_le32(tmp);
} else {
if (ha->tgt.saved_set) {
nv->exchange_count = ha->tgt.saved_exchange_count;
nv->firmware_options_1 =
ha->tgt.saved_firmware_options_1;
nv->firmware_options_2 =
ha->tgt.saved_firmware_options_2;
nv->firmware_options_3 =
ha->tgt.saved_firmware_options_3;
}
return;
}
if (ha->base_qpair->enable_class_2) {
if (vha->flags.init_done)
fc_host_supported_classes(vha->host) =
FC_COS_CLASS2 | FC_COS_CLASS3;
nv->firmware_options_2 |= cpu_to_le32(BIT_8);
} else {
if (vha->flags.init_done)
fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
nv->firmware_options_2 &= ~cpu_to_le32(BIT_8);
}
}
void
qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha,
struct init_cb_81xx *icb)
{
struct qla_hw_data *ha = vha->hw;
if (!QLA_TGT_MODE_ENABLED())
return;
if (ha->tgt.node_name_set) {
memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE);
icb->firmware_options_1 |= cpu_to_le32(BIT_14);
}
}
void
qlt_83xx_iospace_config(struct qla_hw_data *ha)
{
if (!QLA_TGT_MODE_ENABLED())
return;
ha->msix_count += 1; /* For ATIO Q */
}
void
qlt_modify_vp_config(struct scsi_qla_host *vha,
struct vp_config_entry_24xx *vpmod)
{
/* enable target mode. Bit5 = 1 => disable */
if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
vpmod->options_idx1 &= ~BIT_5;
/* Disable ini mode, if requested. bit4 = 1 => disable */
if (qla_tgt_mode_enabled(vha))
vpmod->options_idx1 &= ~BIT_4;
}
void
qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha)
{
mutex_init(&base_vha->vha_tgt.tgt_mutex);
if (!QLA_TGT_MODE_ENABLED())
return;
if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in;
ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out;
} else {
ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in;
ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out;
}
mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex);
INIT_LIST_HEAD(&base_vha->unknown_atio_list);
INIT_DELAYED_WORK(&base_vha->unknown_atio_work,
qlt_unknown_atio_work_fn);
qlt_clear_mode(base_vha);
qla_update_vp_map(base_vha, SET_VP_IDX);
}
irqreturn_t
qla83xx_msix_atio_q(int irq, void *dev_id)
{
struct rsp_que *rsp;
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
unsigned long flags;
rsp = (struct rsp_que *) dev_id;
ha = rsp->hw;
vha = pci_get_drvdata(ha->pdev);
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
qlt_24xx_process_atio_queue(vha, 0);
spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
return IRQ_HANDLED;
}
static void
qlt_handle_abts_recv_work(struct work_struct *work)
{
struct qla_tgt_sess_op *op = container_of(work,
struct qla_tgt_sess_op, work);
scsi_qla_host_t *vha = op->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
if (qla2x00_reset_active(vha) ||
(op->chip_reset != ha->base_qpair->chip_reset))
return;
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
qlt_24xx_process_atio_queue(vha, 0);
spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
spin_lock_irqsave(&ha->hardware_lock, flags);
qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
kfree(op);
}
void
qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp,
response_t *pkt)
{
struct qla_tgt_sess_op *op;
op = kzalloc(sizeof(*op), GFP_ATOMIC);
if (!op) {
/* do not reach for ATIO queue here. This is best effort err
* recovery at this point.
*/
qlt_response_pkt_all_vps(vha, rsp, pkt);
return;
}
memcpy(&op->atio, pkt, sizeof(*pkt));
op->vha = vha;
op->chip_reset = vha->hw->base_qpair->chip_reset;
op->rsp = rsp;
INIT_WORK(&op->work, qlt_handle_abts_recv_work);
queue_work(qla_tgt_wq, &op->work);
return;
}
int
qlt_mem_alloc(struct qla_hw_data *ha)
{
if (!QLA_TGT_MODE_ENABLED())
return 0;
ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev,
(ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp),
&ha->tgt.atio_dma, GFP_KERNEL);
if (!ha->tgt.atio_ring) {
return -ENOMEM;
}
return 0;
}
void
qlt_mem_free(struct qla_hw_data *ha)
{
if (!QLA_TGT_MODE_ENABLED())
return;
if (ha->tgt.atio_ring) {
dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) *
sizeof(struct atio_from_isp), ha->tgt.atio_ring,
ha->tgt.atio_dma);
}
ha->tgt.atio_ring = NULL;
ha->tgt.atio_dma = 0;
}
static int __init qlt_parse_ini_mode(void)
{
if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0)
ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0)
ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED;
else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0)
ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED;
else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0)
ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL;
else
return false;
return true;
}
int __init qlt_init(void)
{
int ret;
BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
if (!qlt_parse_ini_mode()) {
ql_log(ql_log_fatal, NULL, 0xe06b,
"qlt_parse_ini_mode() failed\n");
return -EINVAL;
}
if (!QLA_TGT_MODE_ENABLED())
return 0;
qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep",
sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct
qla_tgt_mgmt_cmd), 0, NULL);
if (!qla_tgt_mgmt_cmd_cachep) {
ql_log(ql_log_fatal, NULL, 0xd04b,
"kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n");
return -ENOMEM;
}
qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep",
sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t),
0, NULL);
if (!qla_tgt_plogi_cachep) {
ql_log(ql_log_fatal, NULL, 0xe06d,
"kmem_cache_create for qla_tgt_plogi_cachep failed\n");
ret = -ENOMEM;
goto out_mgmt_cmd_cachep;
}
qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab,
mempool_free_slab, qla_tgt_mgmt_cmd_cachep);
if (!qla_tgt_mgmt_cmd_mempool) {
ql_log(ql_log_fatal, NULL, 0xe06e,
"mempool_create for qla_tgt_mgmt_cmd_mempool failed\n");
ret = -ENOMEM;
goto out_plogi_cachep;
}
qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0);
if (!qla_tgt_wq) {
ql_log(ql_log_fatal, NULL, 0xe06f,
"alloc_workqueue for qla_tgt_wq failed\n");
ret = -ENOMEM;
goto out_cmd_mempool;
}
/*
* Return 1 to signal that initiator-mode is being disabled
*/
return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0;
out_cmd_mempool:
mempool_destroy(qla_tgt_mgmt_cmd_mempool);
out_plogi_cachep:
kmem_cache_destroy(qla_tgt_plogi_cachep);
out_mgmt_cmd_cachep:
kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
return ret;
}
void qlt_exit(void)
{
if (!QLA_TGT_MODE_ENABLED())
return;
destroy_workqueue(qla_tgt_wq);
mempool_destroy(qla_tgt_mgmt_cmd_mempool);
kmem_cache_destroy(qla_tgt_plogi_cachep);
kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep);
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_target.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_target.h"
#include "qla_gbl.h"
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/cpu.h>
#include <linux/t10-pi.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_bsg_fc.h>
#include <scsi/scsi_eh.h>
#include <scsi/fc/fc_fs.h>
#include <linux/nvme-fc-driver.h>
static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
sts_entry_t *);
static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
struct purex_item *item);
static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
uint16_t size);
static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
void *pkt);
static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
void **pkt, struct rsp_que **rsp);
static void
qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
{
void *pkt = &item->iocb;
uint16_t pkt_size = item->size;
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
"%s: Enter\n", __func__);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
"-------- ELS REQ -------\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
pkt, pkt_size);
fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt, 0);
}
const char *const port_state_str[] = {
[FCS_UNKNOWN] = "Unknown",
[FCS_UNCONFIGURED] = "UNCONFIGURED",
[FCS_DEVICE_DEAD] = "DEAD",
[FCS_DEVICE_LOST] = "LOST",
[FCS_ONLINE] = "ONLINE"
};
#define SFP_DISABLE_LASER_INITIATED 0x15 /* Sub code of 8070 AEN */
#define SFP_ENABLE_LASER_INITIATED 0x16 /* Sub code of 8070 AEN */
static inline void display_Laser_info(scsi_qla_host_t *vha,
u16 mb1, u16 mb2, u16 mb3) {
if (mb1 == SFP_DISABLE_LASER_INITIATED)
ql_log(ql_log_warn, vha, 0xf0a2,
"SFP temperature (%d C) reached/exceeded the threshold (%d C). Laser is disabled.\n",
mb3, mb2);
if (mb1 == SFP_ENABLE_LASER_INITIATED)
ql_log(ql_log_warn, vha, 0xf0a3,
"SFP temperature (%d C) reached normal operating level. Laser is enabled.\n",
mb3);
}
static void
qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
{
struct abts_entry_24xx *abts =
(struct abts_entry_24xx *)&pkt->iocb;
struct qla_hw_data *ha = vha->hw;
struct els_entry_24xx *rsp_els;
struct abts_entry_24xx *abts_rsp;
dma_addr_t dma;
uint32_t fctl;
int rval;
ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
ql_log(ql_log_warn, vha, 0x0287,
"Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
abts->seq_id, abts->seq_cnt);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
"-------- ABTS RCV -------\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
(uint8_t *)abts, sizeof(*abts));
rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
GFP_KERNEL);
if (!rsp_els) {
ql_log(ql_log_warn, vha, 0x0287,
"Failed allocate dma buffer ABTS/ELS RSP.\n");
return;
}
/* terminate exchange */
rsp_els->entry_type = ELS_IOCB_TYPE;
rsp_els->entry_count = 1;
rsp_els->nport_handle = cpu_to_le16(~0);
rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
ql_dbg(ql_dbg_init, vha, 0x0283,
"Sending ELS Response to terminate exchange %#x...\n",
abts->rx_xch_addr_to_abort);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
"-------- ELS RSP -------\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
(uint8_t *)rsp_els, sizeof(*rsp_els));
rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
if (rval) {
ql_log(ql_log_warn, vha, 0x0288,
"%s: iocb failed to execute -> %x\n", __func__, rval);
} else if (rsp_els->comp_status) {
ql_log(ql_log_warn, vha, 0x0289,
"%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
__func__, rsp_els->comp_status,
rsp_els->error_subcode_1, rsp_els->error_subcode_2);
} else {
ql_dbg(ql_dbg_init, vha, 0x028a,
"%s: abort exchange done.\n", __func__);
}
/* send ABTS response */
abts_rsp = (void *)rsp_els;
memset(abts_rsp, 0, sizeof(*abts_rsp));
abts_rsp->entry_type = ABTS_RSP_TYPE;
abts_rsp->entry_count = 1;
abts_rsp->nport_handle = abts->nport_handle;
abts_rsp->vp_idx = abts->vp_idx;
abts_rsp->sof_type = abts->sof_type & 0xf0;
abts_rsp->rx_xch_addr = abts->rx_xch_addr;
abts_rsp->d_id[0] = abts->s_id[0];
abts_rsp->d_id[1] = abts->s_id[1];
abts_rsp->d_id[2] = abts->s_id[2];
abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
abts_rsp->s_id[0] = abts->d_id[0];
abts_rsp->s_id[1] = abts->d_id[1];
abts_rsp->s_id[2] = abts->d_id[2];
abts_rsp->cs_ctl = abts->cs_ctl;
/* include flipping bit23 in fctl */
fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
abts_rsp->type = FC_TYPE_BLD;
abts_rsp->rx_id = abts->rx_id;
abts_rsp->ox_id = abts->ox_id;
abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
ql_dbg(ql_dbg_init, vha, 0x028b,
"Sending BA ACC response to ABTS %#x...\n",
abts->rx_xch_addr_to_abort);
ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
"-------- ELS RSP -------\n");
ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
(uint8_t *)abts_rsp, sizeof(*abts_rsp));
rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
if (rval) {
ql_log(ql_log_warn, vha, 0x028c,
"%s: iocb failed to execute -> %x\n", __func__, rval);
} else if (abts_rsp->comp_status) {
ql_log(ql_log_warn, vha, 0x028d,
"%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
__func__, abts_rsp->comp_status,
abts_rsp->payload.error.subcode1,
abts_rsp->payload.error.subcode2);
} else {
ql_dbg(ql_dbg_init, vha, 0x028ea,
"%s: done.\n", __func__);
}
dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
}
/**
* __qla_consume_iocb - this routine is used to tell fw driver has processed
* or consumed the head IOCB along with the continuation IOCB's from the
* provided respond queue.
* @vha: host adapter pointer
* @pkt: pointer to current packet. On return, this pointer shall move
* to the next packet.
* @rsp: respond queue pointer.
*
* it is assumed pkt is the head iocb, not the continuation iocbk
*/
void __qla_consume_iocb(struct scsi_qla_host *vha,
void **pkt, struct rsp_que **rsp)
{
struct rsp_que *rsp_q = *rsp;
response_t *new_pkt;
uint16_t entry_count_remaining;
struct purex_entry_24xx *purex = *pkt;
entry_count_remaining = purex->entry_count;
while (entry_count_remaining > 0) {
new_pkt = rsp_q->ring_ptr;
*pkt = new_pkt;
rsp_q->ring_index++;
if (rsp_q->ring_index == rsp_q->length) {
rsp_q->ring_index = 0;
rsp_q->ring_ptr = rsp_q->ring;
} else {
rsp_q->ring_ptr++;
}
new_pkt->signature = RESPONSE_PROCESSED;
/* flush signature */
wmb();
--entry_count_remaining;
}
}
/**
* __qla_copy_purex_to_buffer - extract ELS payload from Purex IOCB
* and save to provided buffer
* @vha: host adapter pointer
* @pkt: pointer Purex IOCB
* @rsp: respond queue
* @buf: extracted ELS payload copy here
* @buf_len: buffer length
*/
int __qla_copy_purex_to_buffer(struct scsi_qla_host *vha,
void **pkt, struct rsp_que **rsp, u8 *buf, u32 buf_len)
{
struct purex_entry_24xx *purex = *pkt;
struct rsp_que *rsp_q = *rsp;
sts_cont_entry_t *new_pkt;
uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
uint16_t buffer_copy_offset = 0;
uint16_t entry_count_remaining;
u16 tpad;
entry_count_remaining = purex->entry_count;
total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
- PURX_ELS_HEADER_SIZE;
/*
* end of payload may not end in 4bytes boundary. Need to
* round up / pad for room to swap, before saving data
*/
tpad = roundup(total_bytes, 4);
if (buf_len < tpad) {
ql_dbg(ql_dbg_async, vha, 0x5084,
"%s buffer is too small %d < %d\n",
__func__, buf_len, tpad);
__qla_consume_iocb(vha, pkt, rsp);
return -EIO;
}
pending_bytes = total_bytes = tpad;
no_bytes = (pending_bytes > sizeof(purex->els_frame_payload)) ?
sizeof(purex->els_frame_payload) : pending_bytes;
memcpy(buf, &purex->els_frame_payload[0], no_bytes);
buffer_copy_offset += no_bytes;
pending_bytes -= no_bytes;
--entry_count_remaining;
((response_t *)purex)->signature = RESPONSE_PROCESSED;
/* flush signature */
wmb();
do {
while ((total_bytes > 0) && (entry_count_remaining > 0)) {
new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
*pkt = new_pkt;
if (new_pkt->entry_type != STATUS_CONT_TYPE) {
ql_log(ql_log_warn, vha, 0x507a,
"Unexpected IOCB type, partial data 0x%x\n",
buffer_copy_offset);
break;
}
rsp_q->ring_index++;
if (rsp_q->ring_index == rsp_q->length) {
rsp_q->ring_index = 0;
rsp_q->ring_ptr = rsp_q->ring;
} else {
rsp_q->ring_ptr++;
}
no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
sizeof(new_pkt->data) : pending_bytes;
if ((buffer_copy_offset + no_bytes) <= total_bytes) {
memcpy((buf + buffer_copy_offset), new_pkt->data,
no_bytes);
buffer_copy_offset += no_bytes;
pending_bytes -= no_bytes;
--entry_count_remaining;
} else {
ql_log(ql_log_warn, vha, 0x5044,
"Attempt to copy more that we got, optimizing..%x\n",
buffer_copy_offset);
memcpy((buf + buffer_copy_offset), new_pkt->data,
total_bytes - buffer_copy_offset);
}
((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
/* flush signature */
wmb();
}
if (pending_bytes != 0 || entry_count_remaining != 0) {
ql_log(ql_log_fatal, vha, 0x508b,
"Dropping partial Data, underrun bytes = 0x%x, entry cnts 0x%x\n",
total_bytes, entry_count_remaining);
return -EIO;
}
} while (entry_count_remaining > 0);
be32_to_cpu_array((u32 *)buf, (__be32 *)buf, total_bytes >> 2);
return 0;
}
/**
* qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
* @irq: interrupt number
* @dev_id: SCSI driver HA context
*
* Called by system whenever the host adapter generates an interrupt.
*
* Returns handled flag.
*/
irqreturn_t
qla2100_intr_handler(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct device_reg_2xxx __iomem *reg;
int status;
unsigned long iter;
uint16_t hccr;
uint16_t mb[8];
struct rsp_que *rsp;
unsigned long flags;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
ql_log(ql_log_info, NULL, 0x505d,
"%s: NULL response queue pointer.\n", __func__);
return (IRQ_NONE);
}
ha = rsp->hw;
reg = &ha->iobase->isp;
status = 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
hccr = rd_reg_word(®->hccr);
if (qla2x00_check_reg16_for_disconnect(vha, hccr))
break;
if (hccr & HCCR_RISC_PAUSE) {
if (pci_channel_offline(ha->pdev))
break;
/*
* Issue a "HARD" reset in order for the RISC interrupt
* bit to be cleared. Schedule a big hammer to get
* out of the RISC PAUSED state.
*/
wrt_reg_word(®->hccr, HCCR_RESET_RISC);
rd_reg_word(®->hccr);
ha->isp_ops->fw_dump(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
} else if ((rd_reg_word(®->istatus) & ISR_RISC_INT) == 0)
break;
if (rd_reg_word(®->semaphore) & BIT_0) {
wrt_reg_word(®->hccr, HCCR_CLR_RISC_INT);
rd_reg_word(®->hccr);
/* Get mailbox data. */
mb[0] = RD_MAILBOX_REG(ha, reg, 0);
if (mb[0] > 0x3fff && mb[0] < 0x8000) {
qla2x00_mbx_completion(vha, mb[0]);
status |= MBX_INTERRUPT;
} else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
mb[3] = RD_MAILBOX_REG(ha, reg, 3);
qla2x00_async_event(vha, rsp, mb);
} else {
/*EMPTY*/
ql_dbg(ql_dbg_async, vha, 0x5025,
"Unrecognized interrupt type (%d).\n",
mb[0]);
}
/* Release mailbox registers. */
wrt_reg_word(®->semaphore, 0);
rd_reg_word(®->semaphore);
} else {
qla2x00_process_response_queue(rsp);
wrt_reg_word(®->hccr, HCCR_CLR_RISC_INT);
rd_reg_word(®->hccr);
}
}
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return (IRQ_HANDLED);
}
bool
qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
{
/* Check for PCI disconnection */
if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
!test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
!test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
qla_schedule_eeh_work(vha);
}
return true;
} else
return false;
}
bool
qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
{
return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
}
/**
* qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
* @irq: interrupt number
* @dev_id: SCSI driver HA context
*
* Called by system whenever the host adapter generates an interrupt.
*
* Returns handled flag.
*/
irqreturn_t
qla2300_intr_handler(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct device_reg_2xxx __iomem *reg;
int status;
unsigned long iter;
uint32_t stat;
uint16_t hccr;
uint16_t mb[8];
struct rsp_que *rsp;
struct qla_hw_data *ha;
unsigned long flags;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
ql_log(ql_log_info, NULL, 0x5058,
"%s: NULL response queue pointer.\n", __func__);
return (IRQ_NONE);
}
ha = rsp->hw;
reg = &ha->iobase->isp;
status = 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
stat = rd_reg_dword(®->u.isp2300.host_status);
if (qla2x00_check_reg32_for_disconnect(vha, stat))
break;
if (stat & HSR_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))
break;
hccr = rd_reg_word(®->hccr);
if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
ql_log(ql_log_warn, vha, 0x5026,
"Parity error -- HCCR=%x, Dumping "
"firmware.\n", hccr);
else
ql_log(ql_log_warn, vha, 0x5027,
"RISC paused -- HCCR=%x, Dumping "
"firmware.\n", hccr);
/*
* Issue a "HARD" reset in order for the RISC
* interrupt bit to be cleared. Schedule a big
* hammer to get out of the RISC PAUSED state.
*/
wrt_reg_word(®->hccr, HCCR_RESET_RISC);
rd_reg_word(®->hccr);
ha->isp_ops->fw_dump(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
} else if ((stat & HSR_RISC_INT) == 0)
break;
switch (stat & 0xff) {
case 0x1:
case 0x2:
case 0x10:
case 0x11:
qla2x00_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
/* Release mailbox registers. */
wrt_reg_word(®->semaphore, 0);
break;
case 0x12:
mb[0] = MSW(stat);
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
mb[3] = RD_MAILBOX_REG(ha, reg, 3);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x13:
qla2x00_process_response_queue(rsp);
break;
case 0x15:
mb[0] = MBA_CMPLT_1_16BIT;
mb[1] = MSW(stat);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x16:
mb[0] = MBA_SCSI_COMPLETION;
mb[1] = MSW(stat);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
qla2x00_async_event(vha, rsp, mb);
break;
default:
ql_dbg(ql_dbg_async, vha, 0x5028,
"Unrecognized interrupt type (%d).\n", stat & 0xff);
break;
}
wrt_reg_word(®->hccr, HCCR_CLR_RISC_INT);
rd_reg_word_relaxed(®->hccr);
}
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return (IRQ_HANDLED);
}
/**
* qla2x00_mbx_completion() - Process mailbox command completions.
* @vha: SCSI driver HA context
* @mb0: Mailbox0 register
*/
static void
qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
{
uint16_t cnt;
uint32_t mboxes;
__le16 __iomem *wptr;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
/* Read all mbox registers? */
WARN_ON_ONCE(ha->mbx_count > 32);
mboxes = (1ULL << ha->mbx_count) - 1;
if (!ha->mcp)
ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
else
mboxes = ha->mcp->in_mb;
/* Load return mailbox registers. */
ha->flags.mbox_int = 1;
ha->mailbox_out[0] = mb0;
mboxes >>= 1;
wptr = MAILBOX_REG(ha, reg, 1);
for (cnt = 1; cnt < ha->mbx_count; cnt++) {
if (IS_QLA2200(ha) && cnt == 8)
wptr = MAILBOX_REG(ha, reg, 8);
if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
else if (mboxes & BIT_0)
ha->mailbox_out[cnt] = rd_reg_word(wptr);
wptr++;
mboxes >>= 1;
}
}
static void
qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
{
static char *event[] =
{ "Complete", "Request Notification", "Time Extension" };
int rval;
struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
__le16 __iomem *wptr;
uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
/* Seed data -- mailbox1 -> mailbox7. */
if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
wptr = ®24->mailbox1;
else if (IS_QLA8044(vha->hw))
wptr = ®82->mailbox_out[1];
else
return;
for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
mb[cnt] = rd_reg_word(wptr);
ql_dbg(ql_dbg_async, vha, 0x5021,
"Inter-Driver Communication %s -- "
"%04x %04x %04x %04x %04x %04x %04x.\n",
event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
mb[4], mb[5], mb[6]);
switch (aen) {
/* Handle IDC Error completion case. */
case MBA_IDC_COMPLETE:
if (mb[1] >> 15) {
vha->hw->flags.idc_compl_status = 1;
if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
complete(&vha->hw->dcbx_comp);
}
break;
case MBA_IDC_NOTIFY:
/* Acknowledgement needed? [Notify && non-zero timeout]. */
timeout = (descr >> 8) & 0xf;
ql_dbg(ql_dbg_async, vha, 0x5022,
"%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
vha->host_no, event[aen & 0xff], timeout);
if (!timeout)
return;
rval = qla2x00_post_idc_ack_work(vha, mb);
if (rval != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0x5023,
"IDC failed to post ACK.\n");
break;
case MBA_IDC_TIME_EXT:
vha->hw->idc_extend_tmo = descr;
ql_dbg(ql_dbg_async, vha, 0x5087,
"%lu Inter-Driver Communication %s -- "
"Extend timeout by=%d.\n",
vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
break;
}
}
#define LS_UNKNOWN 2
const char *
qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
{
static const char *const link_speeds[] = {
"1", "2", "?", "4", "8", "16", "32", "64", "10"
};
#define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return link_speeds[0];
else if (speed == 0x13)
return link_speeds[QLA_LAST_SPEED];
else if (speed < QLA_LAST_SPEED)
return link_speeds[speed];
else
return link_speeds[LS_UNKNOWN];
}
static void
qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
{
struct qla_hw_data *ha = vha->hw;
/*
* 8200 AEN Interpretation:
* mb[0] = AEN code
* mb[1] = AEN Reason code
* mb[2] = LSW of Peg-Halt Status-1 Register
* mb[6] = MSW of Peg-Halt Status-1 Register
* mb[3] = LSW of Peg-Halt Status-2 register
* mb[7] = MSW of Peg-Halt Status-2 register
* mb[4] = IDC Device-State Register value
* mb[5] = IDC Driver-Presence Register value
*/
ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
"mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
mb[0], mb[1], mb[2], mb[6]);
ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
"PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
"Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
IDC_HEARTBEAT_FAILURE)) {
ha->flags.nic_core_hung = 1;
ql_log(ql_log_warn, vha, 0x5060,
"83XX: F/W Error Reported: Check if reset required.\n");
if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
uint32_t protocol_engine_id, fw_err_code, err_level;
/*
* IDC_PEG_HALT_STATUS_CHANGE interpretation:
* - PEG-Halt Status-1 Register:
* (LSW = mb[2], MSW = mb[6])
* Bits 0-7 = protocol-engine ID
* Bits 8-28 = f/w error code
* Bits 29-31 = Error-level
* Error-level 0x1 = Non-Fatal error
* Error-level 0x2 = Recoverable Fatal error
* Error-level 0x4 = UnRecoverable Fatal error
* - PEG-Halt Status-2 Register:
* (LSW = mb[3], MSW = mb[7])
*/
protocol_engine_id = (mb[2] & 0xff);
fw_err_code = (((mb[2] & 0xff00) >> 8) |
((mb[6] & 0x1fff) << 8));
err_level = ((mb[6] & 0xe000) >> 13);
ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
"Register: protocol_engine_id=0x%x "
"fw_err_code=0x%x err_level=0x%x.\n",
protocol_engine_id, fw_err_code, err_level);
ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
"Register: 0x%x%x.\n", mb[7], mb[3]);
if (err_level == ERR_LEVEL_NON_FATAL) {
ql_log(ql_log_warn, vha, 0x5063,
"Not a fatal error, f/w has recovered itself.\n");
} else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
ql_log(ql_log_fatal, vha, 0x5064,
"Recoverable Fatal error: Chip reset "
"required.\n");
qla83xx_schedule_work(vha,
QLA83XX_NIC_CORE_RESET);
} else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
ql_log(ql_log_fatal, vha, 0x5065,
"Unrecoverable Fatal error: Set FAILED "
"state, reboot required.\n");
qla83xx_schedule_work(vha,
QLA83XX_NIC_CORE_UNRECOVERABLE);
}
}
if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
uint16_t peg_fw_state, nw_interface_link_up;
uint16_t nw_interface_signal_detect, sfp_status;
uint16_t htbt_counter, htbt_monitor_enable;
uint16_t sfp_additional_info, sfp_multirate;
uint16_t sfp_tx_fault, link_speed, dcbx_status;
/*
* IDC_NIC_FW_REPORTED_FAILURE interpretation:
* - PEG-to-FC Status Register:
* (LSW = mb[2], MSW = mb[6])
* Bits 0-7 = Peg-Firmware state
* Bit 8 = N/W Interface Link-up
* Bit 9 = N/W Interface signal detected
* Bits 10-11 = SFP Status
* SFP Status 0x0 = SFP+ transceiver not expected
* SFP Status 0x1 = SFP+ transceiver not present
* SFP Status 0x2 = SFP+ transceiver invalid
* SFP Status 0x3 = SFP+ transceiver present and
* valid
* Bits 12-14 = Heartbeat Counter
* Bit 15 = Heartbeat Monitor Enable
* Bits 16-17 = SFP Additional Info
* SFP info 0x0 = Unregocnized transceiver for
* Ethernet
* SFP info 0x1 = SFP+ brand validation failed
* SFP info 0x2 = SFP+ speed validation failed
* SFP info 0x3 = SFP+ access error
* Bit 18 = SFP Multirate
* Bit 19 = SFP Tx Fault
* Bits 20-22 = Link Speed
* Bits 23-27 = Reserved
* Bits 28-30 = DCBX Status
* DCBX Status 0x0 = DCBX Disabled
* DCBX Status 0x1 = DCBX Enabled
* DCBX Status 0x2 = DCBX Exchange error
* Bit 31 = Reserved
*/
peg_fw_state = (mb[2] & 0x00ff);
nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
sfp_status = ((mb[2] & 0x0c00) >> 10);
htbt_counter = ((mb[2] & 0x7000) >> 12);
htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
sfp_additional_info = (mb[6] & 0x0003);
sfp_multirate = ((mb[6] & 0x0004) >> 2);
sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
link_speed = ((mb[6] & 0x0070) >> 4);
dcbx_status = ((mb[6] & 0x7000) >> 12);
ql_log(ql_log_warn, vha, 0x5066,
"Peg-to-Fc Status Register:\n"
"peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
"nw_interface_signal_detect=0x%x"
"\nsfp_statis=0x%x.\n ", peg_fw_state,
nw_interface_link_up, nw_interface_signal_detect,
sfp_status);
ql_log(ql_log_warn, vha, 0x5067,
"htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
"sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
htbt_counter, htbt_monitor_enable,
sfp_additional_info, sfp_multirate);
ql_log(ql_log_warn, vha, 0x5068,
"sfp_tx_fault=0x%x, link_state=0x%x, "
"dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
dcbx_status);
qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
}
if (mb[1] & IDC_HEARTBEAT_FAILURE) {
ql_log(ql_log_warn, vha, 0x5069,
"Heartbeat Failure encountered, chip reset "
"required.\n");
qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
}
}
if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
ql_log(ql_log_info, vha, 0x506a,
"IDC Device-State changed = 0x%x.\n", mb[4]);
if (ha->flags.nic_core_reset_owner)
return;
qla83xx_schedule_work(vha, MBA_IDC_AEN);
}
}
/**
* qla27xx_copy_multiple_pkt() - Copy over purex/purls packets that can
* span over multiple IOCBs.
* @vha: SCSI driver HA context
* @pkt: ELS packet
* @rsp: Response queue
* @is_purls: True, for Unsolicited Received FC-NVMe LS rsp IOCB
* false, for Unsolicited Received ELS IOCB
* @byte_order: True, to change the byte ordering of iocb payload
*/
struct purex_item *
qla27xx_copy_multiple_pkt(struct scsi_qla_host *vha, void **pkt,
struct rsp_que **rsp, bool is_purls,
bool byte_order)
{
struct purex_entry_24xx *purex = NULL;
struct pt_ls4_rx_unsol *purls = NULL;
struct rsp_que *rsp_q = *rsp;
sts_cont_entry_t *new_pkt;
uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
uint16_t buffer_copy_offset = 0, payload_size = 0;
uint16_t entry_count, entry_count_remaining;
struct purex_item *item;
void *iocb_pkt = NULL;
if (is_purls) {
purls = *pkt;
total_bytes = (le16_to_cpu(purls->frame_size) & 0x0FFF) -
PURX_ELS_HEADER_SIZE;
entry_count = entry_count_remaining = purls->entry_count;
payload_size = sizeof(purls->payload);
} else {
purex = *pkt;
total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF) -
PURX_ELS_HEADER_SIZE;
entry_count = entry_count_remaining = purex->entry_count;
payload_size = sizeof(purex->els_frame_payload);
}
pending_bytes = total_bytes;
no_bytes = (pending_bytes > payload_size) ? payload_size :
pending_bytes;
ql_dbg(ql_dbg_async, vha, 0x509a,
"%s LS, frame_size 0x%x, entry count %d\n",
(is_purls ? "PURLS" : "FPIN"), total_bytes, entry_count);
item = qla24xx_alloc_purex_item(vha, total_bytes);
if (!item)
return item;
iocb_pkt = &item->iocb;
if (is_purls)
memcpy(iocb_pkt, &purls->payload[0], no_bytes);
else
memcpy(iocb_pkt, &purex->els_frame_payload[0], no_bytes);
buffer_copy_offset += no_bytes;
pending_bytes -= no_bytes;
--entry_count_remaining;
if (is_purls)
((response_t *)purls)->signature = RESPONSE_PROCESSED;
else
((response_t *)purex)->signature = RESPONSE_PROCESSED;
wmb();
do {
while ((total_bytes > 0) && (entry_count_remaining > 0)) {
if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
ql_dbg(ql_dbg_async, vha, 0x5084,
"Ran out of IOCBs, partial data 0x%x\n",
buffer_copy_offset);
cpu_relax();
continue;
}
new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
*pkt = new_pkt;
if (new_pkt->entry_type != STATUS_CONT_TYPE) {
ql_log(ql_log_warn, vha, 0x507a,
"Unexpected IOCB type, partial data 0x%x\n",
buffer_copy_offset);
break;
}
rsp_q->ring_index++;
if (rsp_q->ring_index == rsp_q->length) {
rsp_q->ring_index = 0;
rsp_q->ring_ptr = rsp_q->ring;
} else {
rsp_q->ring_ptr++;
}
no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
sizeof(new_pkt->data) : pending_bytes;
if ((buffer_copy_offset + no_bytes) <= total_bytes) {
memcpy(((uint8_t *)iocb_pkt + buffer_copy_offset),
new_pkt->data, no_bytes);
buffer_copy_offset += no_bytes;
pending_bytes -= no_bytes;
--entry_count_remaining;
} else {
ql_log(ql_log_warn, vha, 0x5044,
"Attempt to copy more that we got, optimizing..%x\n",
buffer_copy_offset);
memcpy(((uint8_t *)iocb_pkt + buffer_copy_offset),
new_pkt->data,
total_bytes - buffer_copy_offset);
}
((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
wmb();
}
if (pending_bytes != 0 || entry_count_remaining != 0) {
ql_log(ql_log_fatal, vha, 0x508b,
"Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
total_bytes, entry_count_remaining);
qla24xx_free_purex_item(item);
return NULL;
}
} while (entry_count_remaining > 0);
if (byte_order)
host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
return item;
}
int
qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
{
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *vp;
uint32_t vp_did;
unsigned long flags;
int ret = 0;
if (!ha->num_vhosts)
return ret;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry(vp, &ha->vp_list, list) {
vp_did = vp->d_id.b24;
if (vp_did == rscn_entry) {
ret = 1;
break;
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
return ret;
}
fc_port_t *
qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
{
fc_port_t *f, *tf;
f = tf = NULL;
list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
if (f->loop_id == loop_id)
return f;
return NULL;
}
fc_port_t *
qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
{
fc_port_t *f, *tf;
f = tf = NULL;
list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
if (incl_deleted)
return f;
else if (f->deleted == 0)
return f;
}
}
return NULL;
}
fc_port_t *
qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
u8 incl_deleted)
{
fc_port_t *f, *tf;
f = tf = NULL;
list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
if (f->d_id.b24 == id->b24) {
if (incl_deleted)
return f;
else if (f->deleted == 0)
return f;
}
}
return NULL;
}
/* Shall be called only on supported adapters. */
static void
qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
{
struct qla_hw_data *ha = vha->hw;
bool reset_isp_needed = false;
ql_log(ql_log_warn, vha, 0x02f0,
"MPI Heartbeat stop. MPI reset is%s needed. "
"MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
mb[1] & BIT_8 ? "" : " not",
mb[0], mb[1], mb[2], mb[3]);
if ((mb[1] & BIT_8) == 0)
return;
ql_log(ql_log_warn, vha, 0x02f1,
"MPI Heartbeat stop. FW dump needed\n");
if (ql2xfulldump_on_mpifail) {
ha->isp_ops->fw_dump(vha);
reset_isp_needed = true;
}
ha->isp_ops->mpi_fw_dump(vha, 1);
if (reset_isp_needed) {
vha->hw->flags.fw_init_done = 0;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
}
static struct purex_item *
qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
{
struct purex_item *item = NULL;
uint8_t item_hdr_size = sizeof(*item);
if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
item = kzalloc(item_hdr_size +
(size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
} else {
if (atomic_inc_return(&vha->default_item.in_use) == 1) {
item = &vha->default_item;
goto initialize_purex_header;
} else {
item = kzalloc(item_hdr_size, GFP_ATOMIC);
}
}
if (!item) {
ql_log(ql_log_warn, vha, 0x5092,
">> Failed allocate purex list item.\n");
return NULL;
}
initialize_purex_header:
item->vha = vha;
item->size = size;
return item;
}
void
qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
void (*process_item)(struct scsi_qla_host *vha,
struct purex_item *pkt))
{
struct purex_list *list = &vha->purex_list;
ulong flags;
pkt->process_item = process_item;
spin_lock_irqsave(&list->lock, flags);
list_add_tail(&pkt->list, &list->head);
spin_unlock_irqrestore(&list->lock, flags);
set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
}
/**
* qla24xx_copy_std_pkt() - Copy over purex ELS which is
* contained in a single IOCB.
* purex packet.
* @vha: SCSI driver HA context
* @pkt: ELS packet
*/
static struct purex_item
*qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
{
struct purex_item *item;
item = qla24xx_alloc_purex_item(vha,
QLA_DEFAULT_PAYLOAD_SIZE);
if (!item)
return item;
memcpy(&item->iocb, pkt, sizeof(item->iocb));
return item;
}
/**
* qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
* span over multiple IOCBs.
* @vha: SCSI driver HA context
* @pkt: ELS packet
* @rsp: Response queue
*/
static struct purex_item *
qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
struct rsp_que **rsp)
{
struct purex_entry_24xx *purex = *pkt;
struct rsp_que *rsp_q = *rsp;
sts_cont_entry_t *new_pkt;
uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
uint16_t buffer_copy_offset = 0;
uint16_t entry_count, entry_count_remaining;
struct purex_item *item;
void *fpin_pkt = NULL;
total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
- PURX_ELS_HEADER_SIZE;
pending_bytes = total_bytes;
entry_count = entry_count_remaining = purex->entry_count;
no_bytes = (pending_bytes > sizeof(purex->els_frame_payload)) ?
sizeof(purex->els_frame_payload) : pending_bytes;
ql_log(ql_log_info, vha, 0x509a,
"FPIN ELS, frame_size 0x%x, entry count %d\n",
total_bytes, entry_count);
item = qla24xx_alloc_purex_item(vha, total_bytes);
if (!item)
return item;
fpin_pkt = &item->iocb;
memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
buffer_copy_offset += no_bytes;
pending_bytes -= no_bytes;
--entry_count_remaining;
((response_t *)purex)->signature = RESPONSE_PROCESSED;
wmb();
do {
while ((total_bytes > 0) && (entry_count_remaining > 0)) {
if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
ql_dbg(ql_dbg_async, vha, 0x5084,
"Ran out of IOCBs, partial data 0x%x\n",
buffer_copy_offset);
cpu_relax();
continue;
}
new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
*pkt = new_pkt;
if (new_pkt->entry_type != STATUS_CONT_TYPE) {
ql_log(ql_log_warn, vha, 0x507a,
"Unexpected IOCB type, partial data 0x%x\n",
buffer_copy_offset);
break;
}
rsp_q->ring_index++;
if (rsp_q->ring_index == rsp_q->length) {
rsp_q->ring_index = 0;
rsp_q->ring_ptr = rsp_q->ring;
} else {
rsp_q->ring_ptr++;
}
no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
sizeof(new_pkt->data) : pending_bytes;
if ((buffer_copy_offset + no_bytes) <= total_bytes) {
memcpy(((uint8_t *)fpin_pkt +
buffer_copy_offset), new_pkt->data,
no_bytes);
buffer_copy_offset += no_bytes;
pending_bytes -= no_bytes;
--entry_count_remaining;
} else {
ql_log(ql_log_warn, vha, 0x5044,
"Attempt to copy more that we got, optimizing..%x\n",
buffer_copy_offset);
memcpy(((uint8_t *)fpin_pkt +
buffer_copy_offset), new_pkt->data,
total_bytes - buffer_copy_offset);
}
((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
wmb();
}
if (pending_bytes != 0 || entry_count_remaining != 0) {
ql_log(ql_log_fatal, vha, 0x508b,
"Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
total_bytes, entry_count_remaining);
qla24xx_free_purex_item(item);
return NULL;
}
} while (entry_count_remaining > 0);
host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
return item;
}
/**
* qla2x00_async_event() - Process aynchronous events.
* @vha: SCSI driver HA context
* @rsp: response queue
* @mb: Mailbox registers (0 - 3)
*/
void
qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
{
uint16_t handle_cnt;
uint16_t cnt, mbx;
uint32_t handles[5];
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
uint32_t rscn_entry, host_pid;
unsigned long flags;
fc_port_t *fcport = NULL;
if (!vha->hw->flags.fw_started) {
ql_log(ql_log_warn, vha, 0x50ff,
"Dropping AEN - %04x %04x %04x %04x.\n",
mb[0], mb[1], mb[2], mb[3]);
return;
}
/* Setup to process RIO completion. */
handle_cnt = 0;
if (IS_CNA_CAPABLE(ha))
goto skip_rio;
switch (mb[0]) {
case MBA_SCSI_COMPLETION:
handles[0] = make_handle(mb[2], mb[1]);
handle_cnt = 1;
break;
case MBA_CMPLT_1_16BIT:
handles[0] = mb[1];
handle_cnt = 1;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_2_16BIT:
handles[0] = mb[1];
handles[1] = mb[2];
handle_cnt = 2;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_3_16BIT:
handles[0] = mb[1];
handles[1] = mb[2];
handles[2] = mb[3];
handle_cnt = 3;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_4_16BIT:
handles[0] = mb[1];
handles[1] = mb[2];
handles[2] = mb[3];
handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
handle_cnt = 4;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_5_16BIT:
handles[0] = mb[1];
handles[1] = mb[2];
handles[2] = mb[3];
handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
handle_cnt = 5;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_2_32BIT:
handles[0] = make_handle(mb[2], mb[1]);
handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
RD_MAILBOX_REG(ha, reg, 6));
handle_cnt = 2;
mb[0] = MBA_SCSI_COMPLETION;
break;
default:
break;
}
skip_rio:
switch (mb[0]) {
case MBA_SCSI_COMPLETION: /* Fast Post */
if (!vha->flags.online)
break;
for (cnt = 0; cnt < handle_cnt; cnt++)
qla2x00_process_completed_request(vha, rsp->req,
handles[cnt]);
break;
case MBA_RESET: /* Reset */
ql_dbg(ql_dbg_async, vha, 0x5002,
"Asynchronous RESET.\n");
set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
break;
case MBA_SYSTEM_ERR: /* System Error */
mbx = 0;
vha->hw_err_cnt++;
if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
u16 m[4];
m[0] = rd_reg_word(®24->mailbox4);
m[1] = rd_reg_word(®24->mailbox5);
m[2] = rd_reg_word(®24->mailbox6);
mbx = m[3] = rd_reg_word(®24->mailbox7);
ql_log(ql_log_warn, vha, 0x5003,
"ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
} else
ql_log(ql_log_warn, vha, 0x5003,
"ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
mb[1], mb[2], mb[3]);
if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
rd_reg_word(®24->mailbox7) & BIT_8)
ha->isp_ops->mpi_fw_dump(vha, 1);
ha->isp_ops->fw_dump(vha);
ha->flags.fw_init_done = 0;
QLA_FW_STOPPED(ha);
if (IS_FWI2_CAPABLE(ha)) {
if (mb[1] == 0 && mb[2] == 0) {
ql_log(ql_log_fatal, vha, 0x5004,
"Unrecoverable Hardware Error: adapter "
"marked OFFLINE!\n");
vha->flags.online = 0;
vha->device_flags |= DFLG_DEV_FAILED;
} else {
/* Check to see if MPI timeout occurred */
if ((mbx & MBX_3) && (ha->port_no == 0))
set_bit(MPI_RESET_NEEDED,
&vha->dpc_flags);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
}
} else if (mb[1] == 0) {
ql_log(ql_log_fatal, vha, 0x5005,
"Unrecoverable Hardware Error: adapter marked "
"OFFLINE!\n");
vha->flags.online = 0;
vha->device_flags |= DFLG_DEV_FAILED;
} else
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
ql_log(ql_log_warn, vha, 0x5006,
"ISP Request Transfer Error (%x).\n", mb[1]);
vha->hw_err_cnt++;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
ql_log(ql_log_warn, vha, 0x5007,
"ISP Response Transfer Error (%x).\n", mb[1]);
vha->hw_err_cnt++;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
ql_dbg(ql_dbg_async, vha, 0x5008,
"Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
break;
case MBA_LOOP_INIT_ERR:
ql_log(ql_log_warn, vha, 0x5090,
"LOOP INIT ERROR (%x).\n", mb[1]);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
ha->flags.lip_ae = 1;
ql_dbg(ql_dbg_async, vha, 0x5009,
"LIP occurred (%x).\n", mb[1]);
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(vha);
}
if (vha->vp_idx) {
atomic_set(&vha->vp_state, VP_FAILED);
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
}
set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
vha->flags.management_server_logged_in = 0;
qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
break;
case MBA_LOOP_UP: /* Loop Up Event */
if (IS_QLA2100(ha) || IS_QLA2200(ha))
ha->link_data_rate = PORT_SPEED_1GB;
else
ha->link_data_rate = mb[1];
ql_log(ql_log_info, vha, 0x500a,
"LOOP UP detected (%s Gbps).\n",
qla2x00_get_link_speed_str(ha, ha->link_data_rate));
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
if (mb[2] & BIT_0)
ql_log(ql_log_info, vha, 0x11a0,
"FEC=enabled (link up).\n");
}
vha->flags.management_server_logged_in = 0;
qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
if (vha->link_down_time < vha->hw->port_down_retry_count) {
vha->short_link_down_cnt++;
vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
}
break;
case MBA_LOOP_DOWN: /* Loop Down Event */
SAVE_TOPO(ha);
ha->flags.lip_ae = 0;
ha->current_topology = 0;
vha->link_down_time = 0;
mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
? rd_reg_word(®24->mailbox4) : 0;
mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(®82->mailbox_out[4])
: mbx;
ql_log(ql_log_info, vha, 0x500b,
"LOOP DOWN detected (%x %x %x %x).\n",
mb[1], mb[2], mb[3], mbx);
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
/*
* In case of loop down, restore WWPN from
* NVRAM in case of FA-WWPN capable ISP
* Restore for Physical Port only
*/
if (!vha->vp_idx) {
if (ha->flags.fawwpn_enabled &&
(ha->current_topology == ISP_CFG_F)) {
memcpy(vha->port_name, ha->port_name, WWN_SIZE);
fc_host_port_name(vha->host) =
wwn_to_u64(vha->port_name);
ql_dbg(ql_dbg_init + ql_dbg_verbose,
vha, 0x00d8, "LOOP DOWN detected,"
"restore WWPN %016llx\n",
wwn_to_u64(vha->port_name));
}
clear_bit(VP_CONFIG_OK, &vha->vp_flags);
}
vha->device_flags |= DFLG_NO_CABLE;
qla2x00_mark_all_devices_lost(vha);
}
if (vha->vp_idx) {
atomic_set(&vha->vp_state, VP_FAILED);
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
}
vha->flags.management_server_logged_in = 0;
ha->link_data_rate = PORT_SPEED_UNKNOWN;
qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
break;
case MBA_LIP_RESET: /* LIP reset occurred */
ql_dbg(ql_dbg_async, vha, 0x500c,
"LIP reset occurred (%x).\n", mb[1]);
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(vha);
}
if (vha->vp_idx) {
atomic_set(&vha->vp_state, VP_FAILED);
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
}
set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
ha->operating_mode = LOOP;
vha->flags.management_server_logged_in = 0;
qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
break;
/* case MBA_DCBX_COMPLETE: */
case MBA_POINT_TO_POINT: /* Point-to-Point */
ha->flags.lip_ae = 0;
if (IS_QLA2100(ha))
break;
if (IS_CNA_CAPABLE(ha)) {
ql_dbg(ql_dbg_async, vha, 0x500d,
"DCBX Completed -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
if (ha->notify_dcbx_comp && !vha->vp_idx)
complete(&ha->dcbx_comp);
} else
ql_dbg(ql_dbg_async, vha, 0x500e,
"Asynchronous P2P MODE received.\n");
/*
* Until there's a transition from loop down to loop up, treat
* this as loop down only.
*/
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
if (!atomic_read(&vha->loop_down_timer))
atomic_set(&vha->loop_down_timer,
LOOP_DOWN_TIME);
if (!N2N_TOPO(ha))
qla2x00_mark_all_devices_lost(vha);
}
if (vha->vp_idx) {
atomic_set(&vha->vp_state, VP_FAILED);
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
}
if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
vha->flags.management_server_logged_in = 0;
break;
case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
if (IS_QLA2100(ha))
break;
ql_dbg(ql_dbg_async, vha, 0x500f,
"Configuration change detected: value=%x.\n", mb[1]);
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
if (!atomic_read(&vha->loop_down_timer))
atomic_set(&vha->loop_down_timer,
LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(vha);
}
if (vha->vp_idx) {
atomic_set(&vha->vp_state, VP_FAILED);
fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
}
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
break;
case MBA_PORT_UPDATE: /* Port database update */
/*
* Handle only global and vn-port update events
*
* Relevant inputs:
* mb[1] = N_Port handle of changed port
* OR 0xffff for global event
* mb[2] = New login state
* 7 = Port logged out
* mb[3] = LSB is vp_idx, 0xff = all vps
*
* Skip processing if:
* Event is global, vp_idx is NOT all vps,
* vp_idx does not match
* Event is not global, vp_idx does not match
*/
if (IS_QLA2XXX_MIDTYPE(ha) &&
((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
(mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
break;
if (mb[2] == 0x7) {
ql_dbg(ql_dbg_async, vha, 0x5010,
"Port %s %04x %04x %04x.\n",
mb[1] == 0xffff ? "unavailable" : "logout",
mb[1], mb[2], mb[3]);
if (mb[1] == 0xffff)
goto global_port_update;
if (mb[1] == NPH_SNS_LID(ha)) {
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
break;
}
/* use handle_cnt for loop id/nport handle */
if (IS_FWI2_CAPABLE(ha))
handle_cnt = NPH_SNS;
else
handle_cnt = SIMPLE_NAME_SERVER;
if (mb[1] == handle_cnt) {
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
break;
}
/* Port logout */
fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
if (!fcport)
break;
if (atomic_read(&fcport->state) != FCS_ONLINE)
break;
ql_dbg(ql_dbg_async, vha, 0x508a,
"Marking port lost loopid=%04x portid=%06x.\n",
fcport->loop_id, fcport->d_id.b24);
if (qla_ini_mode_enabled(vha)) {
fcport->logout_on_delete = 0;
qlt_schedule_sess_for_deletion(fcport);
}
break;
global_port_update:
if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer,
LOOP_DOWN_TIME);
vha->device_flags |= DFLG_NO_CABLE;
qla2x00_mark_all_devices_lost(vha);
}
if (vha->vp_idx) {
atomic_set(&vha->vp_state, VP_FAILED);
fc_vport_set_state(vha->fc_vport,
FC_VPORT_FAILED);
qla2x00_mark_all_devices_lost(vha);
}
vha->flags.management_server_logged_in = 0;
ha->link_data_rate = PORT_SPEED_UNKNOWN;
break;
}
/*
* If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
* event etc. earlier indicating loop is down) then process
* it. Otherwise ignore it and Wait for RSCN to come in.
*/
atomic_set(&vha->loop_down_timer, 0);
if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
!ha->flags.n2n_ae &&
atomic_read(&vha->loop_state) != LOOP_DEAD) {
ql_dbg(ql_dbg_async, vha, 0x5011,
"Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
mb[1], mb[2], mb[3]);
break;
}
ql_dbg(ql_dbg_async, vha, 0x5012,
"Port database changed %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
/*
* Mark all devices as missing so we will login again.
*/
atomic_set(&vha->loop_state, LOOP_UP);
vha->scan.scan_retry = 0;
set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
set_bit(VP_CONFIG_OK, &vha->vp_flags);
break;
case MBA_RSCN_UPDATE: /* State Change Registration */
/* Check if the Vport has issued a SCR */
if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
break;
/* Only handle SCNs for our Vport index. */
if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
break;
ql_log(ql_log_warn, vha, 0x5013,
"RSCN database changed -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
| vha->d_id.b.al_pa;
if (rscn_entry == host_pid) {
ql_dbg(ql_dbg_async, vha, 0x5014,
"Ignoring RSCN update to local host "
"port ID (%06x).\n", host_pid);
break;
}
/* Ignore reserved bits from RSCN-payload. */
rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
/* Skip RSCNs for virtual ports on the same physical port */
if (qla2x00_is_a_vp_did(vha, rscn_entry))
break;
atomic_set(&vha->loop_down_timer, 0);
vha->flags.management_server_logged_in = 0;
{
struct event_arg ea;
memset(&ea, 0, sizeof(ea));
ea.id.b24 = rscn_entry;
ea.id.b.rsvd_1 = rscn_entry >> 24;
qla2x00_handle_rscn(vha, &ea);
qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
}
break;
case MBA_CONGN_NOTI_RECV:
if (!ha->flags.scm_enabled ||
mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
break;
if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
ql_dbg(ql_dbg_async, vha, 0x509b,
"Congestion Warning %04x %04x.\n", mb[1], mb[2]);
} else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
ql_log(ql_log_warn, vha, 0x509b,
"Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
}
break;
/* case MBA_RIO_RESPONSE: */
case MBA_ZIO_RESPONSE:
ql_dbg(ql_dbg_async, vha, 0x5015,
"[R|Z]IO update completion.\n");
if (IS_FWI2_CAPABLE(ha))
qla24xx_process_response_queue(vha, rsp);
else
qla2x00_process_response_queue(rsp);
break;
case MBA_DISCARD_RND_FRAME:
ql_dbg(ql_dbg_async, vha, 0x5016,
"Discard RND Frame -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
vha->interface_err_cnt++;
break;
case MBA_TRACE_NOTIFICATION:
ql_dbg(ql_dbg_async, vha, 0x5017,
"Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
break;
case MBA_ISP84XX_ALERT:
ql_dbg(ql_dbg_async, vha, 0x5018,
"ISP84XX Alert Notification -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
switch (mb[1]) {
case A84_PANIC_RECOVERY:
ql_log(ql_log_info, vha, 0x5019,
"Alert 84XX: panic recovery %04x %04x.\n",
mb[2], mb[3]);
break;
case A84_OP_LOGIN_COMPLETE:
ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
ql_log(ql_log_info, vha, 0x501a,
"Alert 84XX: firmware version %x.\n",
ha->cs84xx->op_fw_version);
break;
case A84_DIAG_LOGIN_COMPLETE:
ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
ql_log(ql_log_info, vha, 0x501b,
"Alert 84XX: diagnostic firmware version %x.\n",
ha->cs84xx->diag_fw_version);
break;
case A84_GOLD_LOGIN_COMPLETE:
ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
ha->cs84xx->fw_update = 1;
ql_log(ql_log_info, vha, 0x501c,
"Alert 84XX: gold firmware version %x.\n",
ha->cs84xx->gold_fw_version);
break;
default:
ql_log(ql_log_warn, vha, 0x501d,
"Alert 84xx: Invalid Alert %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
}
spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
break;
case MBA_DCBX_START:
ql_dbg(ql_dbg_async, vha, 0x501e,
"DCBX Started -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
break;
case MBA_DCBX_PARAM_UPDATE:
ql_dbg(ql_dbg_async, vha, 0x501f,
"DCBX Parameters Updated -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
break;
case MBA_FCF_CONF_ERR:
ql_dbg(ql_dbg_async, vha, 0x5020,
"FCF Configuration Error -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
break;
case MBA_IDC_NOTIFY:
if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
mb[4] = rd_reg_word(®24->mailbox4);
if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
(mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
(mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
/*
* Extend loop down timer since port is active.
*/
if (atomic_read(&vha->loop_state) == LOOP_DOWN)
atomic_set(&vha->loop_down_timer,
LOOP_DOWN_TIME);
qla2xxx_wake_dpc(vha);
}
}
fallthrough;
case MBA_IDC_COMPLETE:
if (ha->notify_lb_portup_comp && !vha->vp_idx)
complete(&ha->lb_portup_comp);
fallthrough;
case MBA_IDC_TIME_EXT:
if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
IS_QLA8044(ha))
qla81xx_idc_event(vha, mb[0], mb[1]);
break;
case MBA_IDC_AEN:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
vha->hw_err_cnt++;
qla27xx_handle_8200_aen(vha, mb);
} else if (IS_QLA83XX(ha)) {
mb[4] = rd_reg_word(®24->mailbox4);
mb[5] = rd_reg_word(®24->mailbox5);
mb[6] = rd_reg_word(®24->mailbox6);
mb[7] = rd_reg_word(®24->mailbox7);
qla83xx_handle_8200_aen(vha, mb);
} else {
ql_dbg(ql_dbg_async, vha, 0x5052,
"skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
mb[0], mb[1], mb[2], mb[3]);
}
break;
case MBA_DPORT_DIAGNOSTICS:
if ((mb[1] & 0xF) == AEN_DONE_DIAG_TEST_WITH_NOERR ||
(mb[1] & 0xF) == AEN_DONE_DIAG_TEST_WITH_ERR)
vha->dport_status &= ~DPORT_DIAG_IN_PROGRESS;
ql_dbg(ql_dbg_async, vha, 0x5052,
"D-Port Diagnostics: %04x %04x %04x %04x\n",
mb[0], mb[1], mb[2], mb[3]);
memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
static char *results[] = {
"start", "done(pass)", "done(error)", "undefined" };
static char *types[] = {
"none", "dynamic", "static", "other" };
uint result = mb[1] >> 0 & 0x3;
uint type = mb[1] >> 6 & 0x3;
uint sw = mb[1] >> 15 & 0x1;
ql_dbg(ql_dbg_async, vha, 0x5052,
"D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
results[result], types[type], sw);
if (result == 2) {
static char *reasons[] = {
"reserved", "unexpected reject",
"unexpected phase", "retry exceeded",
"timed out", "not supported",
"user stopped" };
uint reason = mb[2] >> 0 & 0xf;
uint phase = mb[2] >> 12 & 0xf;
ql_dbg(ql_dbg_async, vha, 0x5052,
"D-Port Diagnostics: reason=%s phase=%u \n",
reason < 7 ? reasons[reason] : "other",
phase >> 1);
}
}
break;
case MBA_TEMPERATURE_ALERT:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
display_Laser_info(vha, mb[1], mb[2], mb[3]);
ql_dbg(ql_dbg_async, vha, 0x505e,
"TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
break;
case MBA_TRANS_INSERT:
ql_dbg(ql_dbg_async, vha, 0x5091,
"Transceiver Insertion: %04x\n", mb[1]);
set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
break;
case MBA_TRANS_REMOVE:
ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
break;
default:
ql_dbg(ql_dbg_async, vha, 0x5057,
"Unknown AEN:%04x %04x %04x %04x\n",
mb[0], mb[1], mb[2], mb[3]);
}
qlt_async_event(mb[0], vha, mb);
if (!vha->vp_idx && ha->num_vhosts)
qla2x00_alert_all_vps(rsp, mb);
}
/**
* qla2x00_process_completed_request() - Process a Fast Post response.
* @vha: SCSI driver HA context
* @req: request queue
* @index: SRB index
*/
void
qla2x00_process_completed_request(struct scsi_qla_host *vha,
struct req_que *req, uint32_t index)
{
srb_t *sp;
struct qla_hw_data *ha = vha->hw;
/* Validate handle. */
if (index >= req->num_outstanding_cmds) {
ql_log(ql_log_warn, vha, 0x3014,
"Invalid SCSI command index (%x).\n", index);
if (IS_P3P_TYPE(ha))
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
return;
}
sp = req->outstanding_cmds[index];
if (sp) {
/* Free outstanding command slot. */
req->outstanding_cmds[index] = NULL;
/* Save ISP completion status */
sp->done(sp, DID_OK << 16);
} else {
ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
if (IS_P3P_TYPE(ha))
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
}
}
static srb_t *
qla_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
struct req_que *req, void *iocb, u16 *ret_index)
{
struct qla_hw_data *ha = vha->hw;
sts_entry_t *pkt = iocb;
srb_t *sp;
uint16_t index;
if (pkt->handle == QLA_SKIP_HANDLE)
return NULL;
index = LSW(pkt->handle);
if (index >= req->num_outstanding_cmds) {
ql_log(ql_log_warn, vha, 0x5031,
"%s: Invalid command index (%x) type %8ph.\n",
func, index, iocb);
if (IS_P3P_TYPE(ha))
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
return NULL;
}
sp = req->outstanding_cmds[index];
if (!sp) {
ql_log(ql_log_warn, vha, 0x5032,
"%s: Invalid completion handle (%x) -- timed-out.\n",
func, index);
return NULL;
}
if (sp->handle != index) {
ql_log(ql_log_warn, vha, 0x5033,
"%s: SRB handle (%x) mismatch %x.\n", func,
sp->handle, index);
return NULL;
}
*ret_index = index;
qla_put_fw_resources(sp->qpair, &sp->iores);
return sp;
}
srb_t *
qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
struct req_que *req, void *iocb)
{
uint16_t index;
srb_t *sp;
sp = qla_get_sp_from_handle(vha, func, req, iocb, &index);
if (sp)
req->outstanding_cmds[index] = NULL;
return sp;
}
static void
qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
struct mbx_entry *mbx)
{
const char func[] = "MBX-IOCB";
const char *type;
fc_port_t *fcport;
srb_t *sp;
struct srb_iocb *lio;
uint16_t *data;
uint16_t status;
sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
if (!sp)
return;
lio = &sp->u.iocb_cmd;
type = sp->name;
fcport = sp->fcport;
data = lio->u.logio.data;
data[0] = MBS_COMMAND_ERROR;
data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
QLA_LOGIO_LOGIN_RETRIED : 0;
if (mbx->entry_status) {
ql_dbg(ql_dbg_async, vha, 0x5043,
"Async-%s error entry - hdl=%x portid=%02x%02x%02x "
"entry-status=%x status=%x state-flag=%x "
"status-flags=%x.\n", type, sp->handle,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa, mbx->entry_status,
le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
le16_to_cpu(mbx->status_flags));
ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
mbx, sizeof(*mbx));
goto logio_done;
}
status = le16_to_cpu(mbx->status);
if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
status = 0;
if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
ql_dbg(ql_dbg_async, vha, 0x5045,
"Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
type, sp->handle, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa,
le16_to_cpu(mbx->mb1));
data[0] = MBS_COMMAND_COMPLETE;
if (sp->type == SRB_LOGIN_CMD) {
fcport->port_type = FCT_TARGET;
if (le16_to_cpu(mbx->mb1) & BIT_0)
fcport->port_type = FCT_INITIATOR;
else if (le16_to_cpu(mbx->mb1) & BIT_1)
fcport->flags |= FCF_FCP2_DEVICE;
}
goto logio_done;
}
data[0] = le16_to_cpu(mbx->mb0);
switch (data[0]) {
case MBS_PORT_ID_USED:
data[1] = le16_to_cpu(mbx->mb1);
break;
case MBS_LOOP_ID_USED:
break;
default:
data[0] = MBS_COMMAND_ERROR;
break;
}
ql_log(ql_log_warn, vha, 0x5046,
"Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
"mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
le16_to_cpu(mbx->mb7));
logio_done:
sp->done(sp, 0);
}
static void
qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
struct mbx_24xx_entry *pkt)
{
const char func[] = "MBX-IOCB2";
struct qla_hw_data *ha = vha->hw;
srb_t *sp;
struct srb_iocb *si;
u16 sz, i;
int res;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (!sp)
return;
if (sp->type == SRB_SCSI_CMD ||
sp->type == SRB_NVME_CMD ||
sp->type == SRB_TM_CMD) {
ql_log(ql_log_warn, vha, 0x509d,
"Inconsistent event entry type %d\n", sp->type);
if (IS_P3P_TYPE(ha))
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
return;
}
si = &sp->u.iocb_cmd;
sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
for (i = 0; i < sz; i++)
si->u.mbx.in_mb[i] = pkt->mb[i];
res = (si->u.mbx.in_mb[0] & MBS_MASK);
sp->done(sp, res);
}
static void
qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
struct nack_to_isp *pkt)
{
const char func[] = "nack";
srb_t *sp;
int res = 0;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (!sp)
return;
if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
res = QLA_FUNCTION_FAILED;
sp->done(sp, res);
}
static void
qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
sts_entry_t *pkt, int iocb_type)
{
const char func[] = "CT_IOCB";
const char *type;
srb_t *sp;
struct bsg_job *bsg_job;
struct fc_bsg_reply *bsg_reply;
uint16_t comp_status;
int res = 0;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (!sp)
return;
switch (sp->type) {
case SRB_CT_CMD:
bsg_job = sp->u.bsg_job;
bsg_reply = bsg_job->reply;
type = "ct pass-through";
comp_status = le16_to_cpu(pkt->comp_status);
/*
* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
* fc payload to the caller
*/
bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
if (comp_status != CS_COMPLETE) {
if (comp_status == CS_DATA_UNDERRUN) {
res = DID_OK << 16;
bsg_reply->reply_payload_rcv_len =
le16_to_cpu(pkt->rsp_info_len);
ql_log(ql_log_warn, vha, 0x5048,
"CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
type, comp_status,
bsg_reply->reply_payload_rcv_len);
} else {
ql_log(ql_log_warn, vha, 0x5049,
"CT pass-through-%s error comp_status=0x%x.\n",
type, comp_status);
res = DID_ERROR << 16;
bsg_reply->reply_payload_rcv_len = 0;
}
ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
pkt, sizeof(*pkt));
} else {
res = DID_OK << 16;
bsg_reply->reply_payload_rcv_len =
bsg_job->reply_payload.payload_len;
bsg_job->reply_len = 0;
}
break;
case SRB_CT_PTHRU_CMD:
/*
* borrowing sts_entry_24xx.comp_status.
* same location as ct_entry_24xx.comp_status
*/
res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
(struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
sp->name);
break;
}
sp->done(sp, res);
}
static void
qla24xx_els_ct_entry(scsi_qla_host_t *v, struct req_que *req,
struct sts_entry_24xx *pkt, int iocb_type)
{
struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
const char func[] = "ELS_CT_IOCB";
const char *type;
srb_t *sp;
struct bsg_job *bsg_job;
struct fc_bsg_reply *bsg_reply;
uint16_t comp_status;
uint32_t fw_status[3];
int res, logit = 1;
struct srb_iocb *els;
uint n;
scsi_qla_host_t *vha;
struct els_sts_entry_24xx *e = (struct els_sts_entry_24xx *)pkt;
sp = qla2x00_get_sp_from_handle(v, func, req, pkt);
if (!sp)
return;
bsg_job = sp->u.bsg_job;
vha = sp->vha;
type = NULL;
comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
fw_status[1] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_1);
fw_status[2] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_2);
switch (sp->type) {
case SRB_ELS_CMD_RPT:
case SRB_ELS_CMD_HST:
type = "rpt hst";
break;
case SRB_ELS_CMD_HST_NOLOGIN:
type = "els";
{
struct els_entry_24xx *els = (void *)pkt;
struct qla_bsg_auth_els_request *p =
(struct qla_bsg_auth_els_request *)bsg_job->request;
ql_dbg(ql_dbg_user, vha, 0x700f,
"%s %s. portid=%02x%02x%02x status %x xchg %x bsg ptr %p\n",
__func__, sc_to_str(p->e.sub_cmd),
e->d_id[2], e->d_id[1], e->d_id[0],
comp_status, p->e.extra_rx_xchg_address, bsg_job);
if (!(le16_to_cpu(els->control_flags) & ECF_PAYLOAD_DESCR_MASK)) {
if (sp->remap.remapped) {
n = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
sp->remap.rsp.buf,
sp->remap.rsp.len);
ql_dbg(ql_dbg_user + ql_dbg_verbose, vha, 0x700e,
"%s: SG copied %x of %x\n",
__func__, n, sp->remap.rsp.len);
} else {
ql_dbg(ql_dbg_user, vha, 0x700f,
"%s: NOT REMAPPED (error)...!!!\n",
__func__);
}
}
}
break;
case SRB_CT_CMD:
type = "ct pass-through";
break;
case SRB_ELS_DCMD:
type = "Driver ELS logo";
if (iocb_type != ELS_IOCB_TYPE) {
ql_dbg(ql_dbg_user, vha, 0x5047,
"Completing %s: (%p) type=%d.\n",
type, sp, sp->type);
sp->done(sp, 0);
return;
}
break;
case SRB_CT_PTHRU_CMD:
/* borrowing sts_entry_24xx.comp_status.
same location as ct_entry_24xx.comp_status
*/
res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
(struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
sp->name);
sp->done(sp, res);
return;
default:
ql_dbg(ql_dbg_user, vha, 0x503e,
"Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
return;
}
if (iocb_type == ELS_IOCB_TYPE) {
els = &sp->u.iocb_cmd;
els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
if (comp_status == CS_COMPLETE) {
res = DID_OK << 16;
} else {
if (comp_status == CS_DATA_UNDERRUN) {
res = DID_OK << 16;
els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
ese->total_byte_count));
if (sp->remap.remapped &&
((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_ACC) {
ql_dbg(ql_dbg_user, vha, 0x503f,
"%s IOCB Done LS_ACC %02x%02x%02x -> %02x%02x%02x",
__func__, e->s_id[0], e->s_id[2], e->s_id[1],
e->d_id[2], e->d_id[1], e->d_id[0]);
logit = 0;
}
} else if (comp_status == CS_PORT_LOGGED_OUT) {
ql_dbg(ql_dbg_disc, vha, 0x911e,
"%s %d schedule session deletion\n",
__func__, __LINE__);
els->u.els_plogi.len = 0;
res = DID_IMM_RETRY << 16;
qlt_schedule_sess_for_deletion(sp->fcport);
} else {
els->u.els_plogi.len = 0;
res = DID_ERROR << 16;
}
if (sp->remap.remapped &&
((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_RJT) {
if (logit) {
ql_dbg(ql_dbg_user, vha, 0x503f,
"%s IOCB Done LS_RJT hdl=%x comp_status=0x%x\n",
type, sp->handle, comp_status);
ql_dbg(ql_dbg_user, vha, 0x503f,
"subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
fw_status[1], fw_status[2],
le32_to_cpu(((struct els_sts_entry_24xx *)
pkt)->total_byte_count),
e->s_id[0], e->s_id[2], e->s_id[1],
e->d_id[2], e->d_id[1], e->d_id[0]);
}
if (sp->fcport && sp->fcport->flags & FCF_FCSP_DEVICE &&
sp->type == SRB_ELS_CMD_HST_NOLOGIN) {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s rcv reject. Sched delete\n", __func__);
qlt_schedule_sess_for_deletion(sp->fcport);
}
} else if (logit) {
ql_log(ql_log_info, vha, 0x503f,
"%s IOCB Done hdl=%x comp_status=0x%x\n",
type, sp->handle, comp_status);
ql_log(ql_log_info, vha, 0x503f,
"subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
fw_status[1], fw_status[2],
le32_to_cpu(((struct els_sts_entry_24xx *)
pkt)->total_byte_count),
e->s_id[0], e->s_id[2], e->s_id[1],
e->d_id[2], e->d_id[1], e->d_id[0]);
}
}
goto els_ct_done;
}
/* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
* fc payload to the caller
*/
bsg_job = sp->u.bsg_job;
bsg_reply = bsg_job->reply;
bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
if (comp_status != CS_COMPLETE) {
if (comp_status == CS_DATA_UNDERRUN) {
res = DID_OK << 16;
bsg_reply->reply_payload_rcv_len =
le32_to_cpu(ese->total_byte_count);
ql_dbg(ql_dbg_user, vha, 0x503f,
"ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
"error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
type, sp->handle, comp_status, fw_status[1], fw_status[2],
le32_to_cpu(ese->total_byte_count));
} else {
ql_dbg(ql_dbg_user, vha, 0x5040,
"ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
"error subcode 1=0x%x error subcode 2=0x%x.\n",
type, sp->handle, comp_status,
le32_to_cpu(ese->error_subcode_1),
le32_to_cpu(ese->error_subcode_2));
res = DID_ERROR << 16;
bsg_reply->reply_payload_rcv_len = 0;
}
memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
fw_status, sizeof(fw_status));
ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
pkt, sizeof(*pkt));
}
else {
res = DID_OK << 16;
bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
bsg_job->reply_len = 0;
}
els_ct_done:
sp->done(sp, res);
}
static void
qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
struct logio_entry_24xx *logio)
{
const char func[] = "LOGIO-IOCB";
const char *type;
fc_port_t *fcport;
srb_t *sp;
struct srb_iocb *lio;
uint16_t *data;
uint32_t iop[2];
int logit = 1;
sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
if (!sp)
return;
lio = &sp->u.iocb_cmd;
type = sp->name;
fcport = sp->fcport;
data = lio->u.logio.data;
data[0] = MBS_COMMAND_ERROR;
data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
QLA_LOGIO_LOGIN_RETRIED : 0;
if (logio->entry_status) {
ql_log(ql_log_warn, fcport->vha, 0x5034,
"Async-%s error entry - %8phC hdl=%x"
"portid=%02x%02x%02x entry-status=%x.\n",
type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa,
logio->entry_status);
ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
logio, sizeof(*logio));
goto logio_done;
}
if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
ql_dbg(ql_dbg_async, sp->vha, 0x5036,
"Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
type, sp->handle, fcport->d_id.b24, fcport->port_name,
le32_to_cpu(logio->io_parameter[0]));
vha->hw->exch_starvation = 0;
data[0] = MBS_COMMAND_COMPLETE;
if (sp->type == SRB_PRLI_CMD) {
lio->u.logio.iop[0] =
le32_to_cpu(logio->io_parameter[0]);
lio->u.logio.iop[1] =
le32_to_cpu(logio->io_parameter[1]);
goto logio_done;
}
if (sp->type != SRB_LOGIN_CMD)
goto logio_done;
lio->u.logio.iop[1] = le32_to_cpu(logio->io_parameter[5]);
if (le32_to_cpu(logio->io_parameter[5]) & LIO_COMM_FEAT_FCSP)
fcport->flags |= FCF_FCSP_DEVICE;
iop[0] = le32_to_cpu(logio->io_parameter[0]);
if (iop[0] & BIT_4) {
fcport->port_type = FCT_TARGET;
if (iop[0] & BIT_8)
fcport->flags |= FCF_FCP2_DEVICE;
} else if (iop[0] & BIT_5)
fcport->port_type = FCT_INITIATOR;
if (iop[0] & BIT_7)
fcport->flags |= FCF_CONF_COMP_SUPPORTED;
if (logio->io_parameter[7] || logio->io_parameter[8])
fcport->supported_classes |= FC_COS_CLASS2;
if (logio->io_parameter[9] || logio->io_parameter[10])
fcport->supported_classes |= FC_COS_CLASS3;
goto logio_done;
}
iop[0] = le32_to_cpu(logio->io_parameter[0]);
iop[1] = le32_to_cpu(logio->io_parameter[1]);
lio->u.logio.iop[0] = iop[0];
lio->u.logio.iop[1] = iop[1];
switch (iop[0]) {
case LSC_SCODE_PORTID_USED:
data[0] = MBS_PORT_ID_USED;
data[1] = LSW(iop[1]);
logit = 0;
break;
case LSC_SCODE_NPORT_USED:
data[0] = MBS_LOOP_ID_USED;
logit = 0;
break;
case LSC_SCODE_CMD_FAILED:
if (iop[1] == 0x0606) {
/*
* PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
* Target side acked.
*/
data[0] = MBS_COMMAND_COMPLETE;
goto logio_done;
}
data[0] = MBS_COMMAND_ERROR;
break;
case LSC_SCODE_NOXCB:
vha->hw->exch_starvation++;
if (vha->hw->exch_starvation > 5) {
ql_log(ql_log_warn, vha, 0xd046,
"Exchange starvation. Resetting RISC\n");
vha->hw->exch_starvation = 0;
if (IS_P3P_TYPE(vha->hw))
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
fallthrough;
default:
data[0] = MBS_COMMAND_ERROR;
break;
}
if (logit)
ql_log(ql_log_warn, sp->vha, 0x5037, "Async-%s failed: "
"handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
type, sp->handle, fcport->d_id.b24, fcport->port_name,
le16_to_cpu(logio->comp_status),
le32_to_cpu(logio->io_parameter[0]),
le32_to_cpu(logio->io_parameter[1]));
else
ql_dbg(ql_dbg_disc, sp->vha, 0x5037, "Async-%s failed: "
"handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
type, sp->handle, fcport->d_id.b24, fcport->port_name,
le16_to_cpu(logio->comp_status),
le32_to_cpu(logio->io_parameter[0]),
le32_to_cpu(logio->io_parameter[1]));
logio_done:
sp->done(sp, 0);
}
static void
qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
{
const char func[] = "TMF-IOCB";
const char *type;
fc_port_t *fcport;
srb_t *sp;
struct srb_iocb *iocb;
struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
u16 comp_status;
sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
if (!sp)
return;
comp_status = le16_to_cpu(sts->comp_status);
iocb = &sp->u.iocb_cmd;
type = sp->name;
fcport = sp->fcport;
iocb->u.tmf.data = QLA_SUCCESS;
if (sts->entry_status) {
ql_log(ql_log_warn, fcport->vha, 0x5038,
"Async-%s error - hdl=%x entry-status(%x).\n",
type, sp->handle, sts->entry_status);
iocb->u.tmf.data = QLA_FUNCTION_FAILED;
} else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_log(ql_log_warn, fcport->vha, 0x5039,
"Async-%s error - hdl=%x completion status(%x).\n",
type, sp->handle, comp_status);
iocb->u.tmf.data = QLA_FUNCTION_FAILED;
} else if ((le16_to_cpu(sts->scsi_status) &
SS_RESPONSE_INFO_LEN_VALID)) {
host_to_fcp_swap(sts->data, sizeof(sts->data));
if (le32_to_cpu(sts->rsp_data_len) < 4) {
ql_log(ql_log_warn, fcport->vha, 0x503b,
"Async-%s error - hdl=%x not enough response(%d).\n",
type, sp->handle, sts->rsp_data_len);
} else if (sts->data[3]) {
ql_log(ql_log_warn, fcport->vha, 0x503c,
"Async-%s error - hdl=%x response(%x).\n",
type, sp->handle, sts->data[3]);
iocb->u.tmf.data = QLA_FUNCTION_FAILED;
}
}
switch (comp_status) {
case CS_PORT_LOGGED_OUT:
case CS_PORT_CONFIG_CHG:
case CS_PORT_BUSY:
case CS_INCOMPLETE:
case CS_PORT_UNAVAILABLE:
case CS_RESET:
if (atomic_read(&fcport->state) == FCS_ONLINE) {
ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
"-Port to be marked lost on fcport=%02x%02x%02x, current port state= %s comp_status %x.\n",
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa,
port_state_str[FCS_ONLINE],
comp_status);
qlt_schedule_sess_for_deletion(fcport);
}
break;
default:
break;
}
if (iocb->u.tmf.data != QLA_SUCCESS)
ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
sts, sizeof(*sts));
sp->done(sp, 0);
}
static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
void *tsk, srb_t *sp)
{
fc_port_t *fcport;
struct srb_iocb *iocb;
struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
uint16_t state_flags;
struct nvmefc_fcp_req *fd;
uint16_t ret = QLA_SUCCESS;
__le16 comp_status = sts->comp_status;
int logit = 0;
iocb = &sp->u.iocb_cmd;
fcport = sp->fcport;
iocb->u.nvme.comp_status = comp_status;
state_flags = le16_to_cpu(sts->state_flags);
fd = iocb->u.nvme.desc;
if (unlikely(iocb->u.nvme.aen_op))
atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
else
sp->qpair->cmd_completion_cnt++;
if (unlikely(comp_status != CS_COMPLETE))
logit = 1;
fd->transferred_length = fd->payload_length -
le32_to_cpu(sts->residual_len);
/*
* State flags: Bit 6 and 0.
* If 0 is set, we don't care about 6.
* both cases resp was dma'd to host buffer
* if both are 0, that is good path case.
* if six is set and 0 is clear, we need to
* copy resp data from status iocb to resp buffer.
*/
if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
iocb->u.nvme.rsp_pyld_len = 0;
} else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
(SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
/* Response already DMA'd to fd->rspaddr. */
iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
} else if ((state_flags & SF_FCP_RSP_DMA)) {
/*
* Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
* as an error.
*/
iocb->u.nvme.rsp_pyld_len = 0;
fd->transferred_length = 0;
ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
"Unexpected values in NVMe_RSP IU.\n");
logit = 1;
} else if (state_flags & SF_NVME_ERSP) {
uint32_t *inbuf, *outbuf;
uint16_t iter;
inbuf = (uint32_t *)&sts->nvme_ersp_data;
outbuf = (uint32_t *)fd->rspaddr;
iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
sizeof(struct nvme_fc_ersp_iu))) {
if (ql_mask_match(ql_dbg_io)) {
WARN_ONCE(1, "Unexpected response payload length %u.\n",
iocb->u.nvme.rsp_pyld_len);
ql_log(ql_log_warn, fcport->vha, 0x5100,
"Unexpected response payload length %u.\n",
iocb->u.nvme.rsp_pyld_len);
}
iocb->u.nvme.rsp_pyld_len =
cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
}
iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
for (; iter; iter--)
*outbuf++ = swab32(*inbuf++);
}
if (state_flags & SF_NVME_ERSP) {
struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
u32 tgt_xfer_len;
tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
if (fd->transferred_length != tgt_xfer_len) {
ql_log(ql_log_warn, fcport->vha, 0x3079,
"Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
tgt_xfer_len, fd->transferred_length);
logit = 1;
} else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
/*
* Do not log if this is just an underflow and there
* is no data loss.
*/
logit = 0;
}
}
if (unlikely(logit))
ql_dbg(ql_dbg_io, fcport->vha, 0x5060,
"NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x ox_id=%x\n",
sp->name, sp->handle, comp_status,
fd->transferred_length, le32_to_cpu(sts->residual_len),
sts->ox_id);
/*
* If transport error then Failure (HBA rejects request)
* otherwise transport will handle.
*/
switch (le16_to_cpu(comp_status)) {
case CS_COMPLETE:
break;
case CS_RESET:
case CS_PORT_UNAVAILABLE:
case CS_PORT_LOGGED_OUT:
fcport->nvme_flag |= NVME_FLAG_RESETTING;
if (atomic_read(&fcport->state) == FCS_ONLINE) {
ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
"Port to be marked lost on fcport=%06x, current "
"port state= %s comp_status %x.\n",
fcport->d_id.b24, port_state_str[FCS_ONLINE],
comp_status);
qlt_schedule_sess_for_deletion(fcport);
}
fallthrough;
case CS_ABORTED:
case CS_PORT_BUSY:
fd->transferred_length = 0;
iocb->u.nvme.rsp_pyld_len = 0;
ret = QLA_ABORTED;
break;
case CS_DATA_UNDERRUN:
break;
default:
ret = QLA_FUNCTION_FAILED;
break;
}
sp->done(sp, ret);
}
static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
struct vp_ctrl_entry_24xx *vce)
{
const char func[] = "CTRLVP-IOCB";
srb_t *sp;
int rval = QLA_SUCCESS;
sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
if (!sp)
return;
if (vce->entry_status != 0) {
ql_dbg(ql_dbg_vport, vha, 0x10c4,
"%s: Failed to complete IOCB -- error status (%x)\n",
sp->name, vce->entry_status);
rval = QLA_FUNCTION_FAILED;
} else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
ql_dbg(ql_dbg_vport, vha, 0x10c5,
"%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
sp->name, le16_to_cpu(vce->comp_status),
le16_to_cpu(vce->vp_idx_failed));
rval = QLA_FUNCTION_FAILED;
} else {
ql_dbg(ql_dbg_vport, vha, 0x10c6,
"Done %s.\n", __func__);
}
sp->rc = rval;
sp->done(sp, rval);
}
/* Process a single response queue entry. */
static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
struct rsp_que *rsp,
sts_entry_t *pkt)
{
sts21_entry_t *sts21_entry;
sts22_entry_t *sts22_entry;
uint16_t handle_cnt;
uint16_t cnt;
switch (pkt->entry_type) {
case STATUS_TYPE:
qla2x00_status_entry(vha, rsp, pkt);
break;
case STATUS_TYPE_21:
sts21_entry = (sts21_entry_t *)pkt;
handle_cnt = sts21_entry->handle_count;
for (cnt = 0; cnt < handle_cnt; cnt++)
qla2x00_process_completed_request(vha, rsp->req,
sts21_entry->handle[cnt]);
break;
case STATUS_TYPE_22:
sts22_entry = (sts22_entry_t *)pkt;
handle_cnt = sts22_entry->handle_count;
for (cnt = 0; cnt < handle_cnt; cnt++)
qla2x00_process_completed_request(vha, rsp->req,
sts22_entry->handle[cnt]);
break;
case STATUS_CONT_TYPE:
qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
break;
case MBX_IOCB_TYPE:
qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
break;
case CT_IOCB_TYPE:
qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
break;
default:
/* Type Not Supported. */
ql_log(ql_log_warn, vha, 0x504a,
"Received unknown response pkt type %x entry status=%x.\n",
pkt->entry_type, pkt->entry_status);
break;
}
}
/**
* qla2x00_process_response_queue() - Process response queue entries.
* @rsp: response queue
*/
void
qla2x00_process_response_queue(struct rsp_que *rsp)
{
struct scsi_qla_host *vha;
struct qla_hw_data *ha = rsp->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
sts_entry_t *pkt;
vha = pci_get_drvdata(ha->pdev);
if (!vha->flags.online)
return;
while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
pkt = (sts_entry_t *)rsp->ring_ptr;
rsp->ring_index++;
if (rsp->ring_index == rsp->length) {
rsp->ring_index = 0;
rsp->ring_ptr = rsp->ring;
} else {
rsp->ring_ptr++;
}
if (pkt->entry_status != 0) {
qla2x00_error_entry(vha, rsp, pkt);
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
wmb();
continue;
}
qla2x00_process_response_entry(vha, rsp, pkt);
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
wmb();
}
/* Adjust ring index */
wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
}
static inline void
qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
uint32_t sense_len, struct rsp_que *rsp, int res)
{
struct scsi_qla_host *vha = sp->vha;
struct scsi_cmnd *cp = GET_CMD_SP(sp);
uint32_t track_sense_len;
if (sense_len >= SCSI_SENSE_BUFFERSIZE)
sense_len = SCSI_SENSE_BUFFERSIZE;
SET_CMD_SENSE_LEN(sp, sense_len);
SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
track_sense_len = sense_len;
if (sense_len > par_sense_len)
sense_len = par_sense_len;
memcpy(cp->sense_buffer, sense_data, sense_len);
SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
track_sense_len -= sense_len;
SET_CMD_SENSE_LEN(sp, track_sense_len);
if (track_sense_len != 0) {
rsp->status_srb = sp;
cp->result = res;
}
if (sense_len) {
ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
"Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
sp->vha->host_no, cp->device->id, cp->device->lun,
cp);
ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
cp->sense_buffer, sense_len);
}
}
struct scsi_dif_tuple {
__be16 guard; /* Checksum */
__be16 app_tag; /* APPL identifier */
__be32 ref_tag; /* Target LBA or indirect LBA */
};
/*
* Checks the guard or meta-data for the type of error
* detected by the HBA. In case of errors, we set the
* ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
* to indicate to the kernel that the HBA detected error.
*/
static inline int
qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
{
struct scsi_qla_host *vha = sp->vha;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
uint8_t *ap = &sts24->data[12];
uint8_t *ep = &sts24->data[20];
uint32_t e_ref_tag, a_ref_tag;
uint16_t e_app_tag, a_app_tag;
uint16_t e_guard, a_guard;
/*
* swab32 of the "data" field in the beginning of qla2x00_status_entry()
* would make guard field appear at offset 2
*/
a_guard = get_unaligned_le16(ap + 2);
a_app_tag = get_unaligned_le16(ap + 0);
a_ref_tag = get_unaligned_le32(ap + 4);
e_guard = get_unaligned_le16(ep + 2);
e_app_tag = get_unaligned_le16(ep + 0);
e_ref_tag = get_unaligned_le32(ep + 4);
ql_dbg(ql_dbg_io, vha, 0x3023,
"iocb(s) %p Returned STATUS.\n", sts24);
ql_dbg(ql_dbg_io, vha, 0x3024,
"DIF ERROR in cmd 0x%x lba 0x%llx act ref"
" tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
" tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
a_app_tag, e_app_tag, a_guard, e_guard);
/*
* Ignore sector if:
* For type 3: ref & app tag is all 'f's
* For type 0,1,2: app tag is all 'f's
*/
if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
(scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
uint32_t blocks_done, resid;
sector_t lba_s = scsi_get_lba(cmd);
/* 2TB boundary case covered automatically with this */
blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
resid = scsi_bufflen(cmd) - (blocks_done *
cmd->device->sector_size);
scsi_set_resid(cmd, resid);
cmd->result = DID_OK << 16;
/* Update protection tag */
if (scsi_prot_sg_count(cmd)) {
uint32_t i, j = 0, k = 0, num_ent;
struct scatterlist *sg;
struct t10_pi_tuple *spt;
/* Patch the corresponding protection tags */
scsi_for_each_prot_sg(cmd, sg,
scsi_prot_sg_count(cmd), i) {
num_ent = sg_dma_len(sg) / 8;
if (k + num_ent < blocks_done) {
k += num_ent;
continue;
}
j = blocks_done - k - 1;
k = blocks_done;
break;
}
if (k != blocks_done) {
ql_log(ql_log_warn, vha, 0x302f,
"unexpected tag values tag:lba=%x:%llx)\n",
e_ref_tag, (unsigned long long)lba_s);
return 1;
}
spt = page_address(sg_page(sg)) + sg->offset;
spt += j;
spt->app_tag = T10_PI_APP_ESCAPE;
if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
spt->ref_tag = T10_PI_REF_ESCAPE;
}
return 0;
}
/* check guard */
if (e_guard != a_guard) {
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
set_host_byte(cmd, DID_ABORT);
return 1;
}
/* check ref tag */
if (e_ref_tag != a_ref_tag) {
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
set_host_byte(cmd, DID_ABORT);
return 1;
}
/* check appl tag */
if (e_app_tag != a_app_tag) {
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
set_host_byte(cmd, DID_ABORT);
return 1;
}
return 1;
}
static void
qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
struct req_que *req, uint32_t index)
{
struct qla_hw_data *ha = vha->hw;
srb_t *sp;
uint16_t comp_status;
uint16_t scsi_status;
uint16_t thread_id;
uint32_t rval = EXT_STATUS_OK;
struct bsg_job *bsg_job = NULL;
struct fc_bsg_request *bsg_request;
struct fc_bsg_reply *bsg_reply;
sts_entry_t *sts = pkt;
struct sts_entry_24xx *sts24 = pkt;
/* Validate handle. */
if (index >= req->num_outstanding_cmds) {
ql_log(ql_log_warn, vha, 0x70af,
"Invalid SCSI completion handle 0x%x.\n", index);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
return;
}
sp = req->outstanding_cmds[index];
if (!sp) {
ql_log(ql_log_warn, vha, 0x70b0,
"Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
req->id, index);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
return;
}
/* Free outstanding command slot. */
req->outstanding_cmds[index] = NULL;
bsg_job = sp->u.bsg_job;
bsg_request = bsg_job->request;
bsg_reply = bsg_job->reply;
if (IS_FWI2_CAPABLE(ha)) {
comp_status = le16_to_cpu(sts24->comp_status);
scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
} else {
comp_status = le16_to_cpu(sts->comp_status);
scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
}
thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
switch (comp_status) {
case CS_COMPLETE:
if (scsi_status == 0) {
bsg_reply->reply_payload_rcv_len =
bsg_job->reply_payload.payload_len;
vha->qla_stats.input_bytes +=
bsg_reply->reply_payload_rcv_len;
vha->qla_stats.input_requests++;
rval = EXT_STATUS_OK;
}
goto done;
case CS_DATA_OVERRUN:
ql_dbg(ql_dbg_user, vha, 0x70b1,
"Command completed with data overrun thread_id=%d\n",
thread_id);
rval = EXT_STATUS_DATA_OVERRUN;
break;
case CS_DATA_UNDERRUN:
ql_dbg(ql_dbg_user, vha, 0x70b2,
"Command completed with data underrun thread_id=%d\n",
thread_id);
rval = EXT_STATUS_DATA_UNDERRUN;
break;
case CS_BIDIR_RD_OVERRUN:
ql_dbg(ql_dbg_user, vha, 0x70b3,
"Command completed with read data overrun thread_id=%d\n",
thread_id);
rval = EXT_STATUS_DATA_OVERRUN;
break;
case CS_BIDIR_RD_WR_OVERRUN:
ql_dbg(ql_dbg_user, vha, 0x70b4,
"Command completed with read and write data overrun "
"thread_id=%d\n", thread_id);
rval = EXT_STATUS_DATA_OVERRUN;
break;
case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
ql_dbg(ql_dbg_user, vha, 0x70b5,
"Command completed with read data over and write data "
"underrun thread_id=%d\n", thread_id);
rval = EXT_STATUS_DATA_OVERRUN;
break;
case CS_BIDIR_RD_UNDERRUN:
ql_dbg(ql_dbg_user, vha, 0x70b6,
"Command completed with read data underrun "
"thread_id=%d\n", thread_id);
rval = EXT_STATUS_DATA_UNDERRUN;
break;
case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
ql_dbg(ql_dbg_user, vha, 0x70b7,
"Command completed with read data under and write data "
"overrun thread_id=%d\n", thread_id);
rval = EXT_STATUS_DATA_UNDERRUN;
break;
case CS_BIDIR_RD_WR_UNDERRUN:
ql_dbg(ql_dbg_user, vha, 0x70b8,
"Command completed with read and write data underrun "
"thread_id=%d\n", thread_id);
rval = EXT_STATUS_DATA_UNDERRUN;
break;
case CS_BIDIR_DMA:
ql_dbg(ql_dbg_user, vha, 0x70b9,
"Command completed with data DMA error thread_id=%d\n",
thread_id);
rval = EXT_STATUS_DMA_ERR;
break;
case CS_TIMEOUT:
ql_dbg(ql_dbg_user, vha, 0x70ba,
"Command completed with timeout thread_id=%d\n",
thread_id);
rval = EXT_STATUS_TIMEOUT;
break;
default:
ql_dbg(ql_dbg_user, vha, 0x70bb,
"Command completed with completion status=0x%x "
"thread_id=%d\n", comp_status, thread_id);
rval = EXT_STATUS_ERR;
break;
}
bsg_reply->reply_payload_rcv_len = 0;
done:
/* Return the vendor specific reply to API */
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
/* Always return DID_OK, bsg will send the vendor specific response
* in this case only */
sp->done(sp, DID_OK << 16);
}
/**
* qla2x00_status_entry() - Process a Status IOCB entry.
* @vha: SCSI driver HA context
* @rsp: response queue
* @pkt: Entry pointer
*/
static void
qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
{
srb_t *sp;
fc_port_t *fcport;
struct scsi_cmnd *cp;
sts_entry_t *sts = pkt;
struct sts_entry_24xx *sts24 = pkt;
uint16_t comp_status;
uint16_t scsi_status;
uint16_t ox_id;
uint8_t lscsi_status;
int32_t resid;
uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
fw_resid_len;
uint8_t *rsp_info, *sense_data;
struct qla_hw_data *ha = vha->hw;
uint32_t handle;
uint16_t que;
struct req_que *req;
int logit = 1;
int res = 0;
uint16_t state_flags = 0;
uint16_t sts_qual = 0;
if (IS_FWI2_CAPABLE(ha)) {
comp_status = le16_to_cpu(sts24->comp_status);
scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
state_flags = le16_to_cpu(sts24->state_flags);
} else {
comp_status = le16_to_cpu(sts->comp_status);
scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
}
handle = (uint32_t) LSW(sts->handle);
que = MSW(sts->handle);
req = ha->req_q_map[que];
/* Check for invalid queue pointer */
if (req == NULL ||
que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
ql_dbg(ql_dbg_io, vha, 0x3059,
"Invalid status handle (0x%x): Bad req pointer. req=%p, "
"que=%u.\n", sts->handle, req, que);
return;
}
/* Validate handle. */
if (handle < req->num_outstanding_cmds) {
sp = req->outstanding_cmds[handle];
if (!sp) {
ql_dbg(ql_dbg_io, vha, 0x3075,
"%s(%ld): Already returned command for status handle (0x%x).\n",
__func__, vha->host_no, sts->handle);
return;
}
} else {
ql_dbg(ql_dbg_io, vha, 0x3017,
"Invalid status handle, out of range (0x%x).\n",
sts->handle);
if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
if (IS_P3P_TYPE(ha))
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
else
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
return;
}
qla_put_fw_resources(sp->qpair, &sp->iores);
if (sp->cmd_type != TYPE_SRB) {
req->outstanding_cmds[handle] = NULL;
ql_dbg(ql_dbg_io, vha, 0x3015,
"Unknown sp->cmd_type %x %p).\n",
sp->cmd_type, sp);
return;
}
/* NVME completion. */
if (sp->type == SRB_NVME_CMD) {
req->outstanding_cmds[handle] = NULL;
qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
return;
}
if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
return;
}
/* Task Management completion. */
if (sp->type == SRB_TM_CMD) {
qla24xx_tm_iocb_entry(vha, req, pkt);
return;
}
/* Fast path completion. */
qla_chk_edif_rx_sa_delete_pending(vha, sp, sts24);
sp->qpair->cmd_completion_cnt++;
if (comp_status == CS_COMPLETE && scsi_status == 0) {
qla2x00_process_completed_request(vha, req, handle);
return;
}
cp = GET_CMD_SP(sp);
if (cp == NULL) {
ql_dbg(ql_dbg_io, vha, 0x3018,
"Command already returned (0x%x/%p).\n",
sts->handle, sp);
req->outstanding_cmds[handle] = NULL;
return;
}
lscsi_status = scsi_status & STATUS_MASK;
fcport = sp->fcport;
ox_id = 0;
sense_len = par_sense_len = rsp_info_len = resid_len =
fw_resid_len = 0;
if (IS_FWI2_CAPABLE(ha)) {
if (scsi_status & SS_SENSE_LEN_VALID)
sense_len = le32_to_cpu(sts24->sense_len);
if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
resid_len = le32_to_cpu(sts24->rsp_residual_count);
if (comp_status == CS_DATA_UNDERRUN)
fw_resid_len = le32_to_cpu(sts24->residual_len);
rsp_info = sts24->data;
sense_data = sts24->data;
host_to_fcp_swap(sts24->data, sizeof(sts24->data));
ox_id = le16_to_cpu(sts24->ox_id);
par_sense_len = sizeof(sts24->data);
sts_qual = le16_to_cpu(sts24->status_qualifier);
} else {
if (scsi_status & SS_SENSE_LEN_VALID)
sense_len = le16_to_cpu(sts->req_sense_length);
if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
rsp_info_len = le16_to_cpu(sts->rsp_info_len);
resid_len = le32_to_cpu(sts->residual_length);
rsp_info = sts->rsp_info;
sense_data = sts->req_sense_data;
par_sense_len = sizeof(sts->req_sense_data);
}
/* Check for any FCP transport errors. */
if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
/* Sense data lies beyond any FCP RESPONSE data. */
if (IS_FWI2_CAPABLE(ha)) {
sense_data += rsp_info_len;
par_sense_len -= rsp_info_len;
}
if (rsp_info_len > 3 && rsp_info[3]) {
ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
"FCP I/O protocol failure (0x%x/0x%x).\n",
rsp_info_len, rsp_info[3]);
res = DID_BUS_BUSY << 16;
goto out;
}
}
/* Check for overrun. */
if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
scsi_status & SS_RESIDUAL_OVER)
comp_status = CS_DATA_OVERRUN;
/*
* Check retry_delay_timer value if we receive a busy or
* queue full.
*/
if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
lscsi_status == SAM_STAT_BUSY))
qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
/*
* Based on Host and scsi status generate status code for Linux
*/
switch (comp_status) {
case CS_COMPLETE:
case CS_QUEUE_FULL:
if (scsi_status == 0) {
res = DID_OK << 16;
break;
}
if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
resid = resid_len;
scsi_set_resid(cp, resid);
if (!lscsi_status &&
((unsigned)(scsi_bufflen(cp) - resid) <
cp->underflow)) {
ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
"Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
resid, scsi_bufflen(cp));
res = DID_ERROR << 16;
break;
}
}
res = DID_OK << 16 | lscsi_status;
if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
"QUEUE FULL detected.\n");
break;
}
logit = 0;
if (lscsi_status != SS_CHECK_CONDITION)
break;
memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
if (!(scsi_status & SS_SENSE_LEN_VALID))
break;
qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
rsp, res);
break;
case CS_DATA_UNDERRUN:
/* Use F/W calculated residual length. */
resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
scsi_set_resid(cp, resid);
if (scsi_status & SS_RESIDUAL_UNDER) {
if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
ql_log(ql_log_warn, fcport->vha, 0x301d,
"Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
resid, scsi_bufflen(cp));
res = DID_ERROR << 16 | lscsi_status;
goto check_scsi_status;
}
if (!lscsi_status &&
((unsigned)(scsi_bufflen(cp) - resid) <
cp->underflow)) {
ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
"Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
resid, scsi_bufflen(cp));
res = DID_ERROR << 16;
break;
}
} else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
lscsi_status != SAM_STAT_BUSY) {
/*
* scsi status of task set and busy are considered to be
* task not completed.
*/
ql_log(ql_log_warn, fcport->vha, 0x301f,
"Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
resid, scsi_bufflen(cp));
vha->interface_err_cnt++;
res = DID_ERROR << 16 | lscsi_status;
goto check_scsi_status;
} else {
ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
"scsi_status: 0x%x, lscsi_status: 0x%x\n",
scsi_status, lscsi_status);
}
res = DID_OK << 16 | lscsi_status;
logit = 0;
check_scsi_status:
/*
* Check to see if SCSI Status is non zero. If so report SCSI
* Status.
*/
if (lscsi_status != 0) {
if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
"QUEUE FULL detected.\n");
logit = 1;
break;
}
if (lscsi_status != SS_CHECK_CONDITION)
break;
memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
if (!(scsi_status & SS_SENSE_LEN_VALID))
break;
qla2x00_handle_sense(sp, sense_data, par_sense_len,
sense_len, rsp, res);
}
break;
case CS_PORT_LOGGED_OUT:
case CS_PORT_CONFIG_CHG:
case CS_PORT_BUSY:
case CS_INCOMPLETE:
case CS_PORT_UNAVAILABLE:
case CS_TIMEOUT:
case CS_RESET:
case CS_EDIF_INV_REQ:
/*
* We are going to have the fc class block the rport
* while we try to recover so instruct the mid layer
* to requeue until the class decides how to handle this.
*/
res = DID_TRANSPORT_DISRUPTED << 16;
if (comp_status == CS_TIMEOUT) {
if (IS_FWI2_CAPABLE(ha))
break;
else if ((le16_to_cpu(sts->status_flags) &
SF_LOGOUT_SENT) == 0)
break;
}
if (atomic_read(&fcport->state) == FCS_ONLINE) {
ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
"Port to be marked lost on fcport=%02x%02x%02x, current "
"port state= %s comp_status %x.\n", fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa,
port_state_str[FCS_ONLINE],
comp_status);
qlt_schedule_sess_for_deletion(fcport);
}
break;
case CS_ABORTED:
res = DID_RESET << 16;
break;
case CS_DIF_ERROR:
logit = qla2x00_handle_dif_error(sp, sts24);
res = cp->result;
break;
case CS_TRANSPORT:
res = DID_ERROR << 16;
vha->hw_err_cnt++;
if (!IS_PI_SPLIT_DET_CAPABLE(ha))
break;
if (state_flags & BIT_4)
scmd_printk(KERN_WARNING, cp,
"Unsupported device '%s' found.\n",
cp->device->vendor);
break;
case CS_DMA:
ql_log(ql_log_info, fcport->vha, 0x3022,
"CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
comp_status, scsi_status, res, vha->host_no,
cp->device->id, cp->device->lun, fcport->d_id.b24,
ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
resid_len, fw_resid_len, sp, cp);
ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
pkt, sizeof(*sts24));
res = DID_ERROR << 16;
vha->hw_err_cnt++;
break;
default:
res = DID_ERROR << 16;
break;
}
out:
if (logit)
ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
"FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
comp_status, scsi_status, res, vha->host_no,
cp->device->id, cp->device->lun, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
cp->cmnd, scsi_bufflen(cp), rsp_info_len,
resid_len, fw_resid_len, sp, cp);
if (rsp->status_srb == NULL)
sp->done(sp, res);
/* for io's, clearing of outstanding_cmds[handle] means scsi_done was called */
req->outstanding_cmds[handle] = NULL;
}
/**
* qla2x00_status_cont_entry() - Process a Status Continuations entry.
* @rsp: response queue
* @pkt: Entry pointer
*
* Extended sense data.
*/
static void
qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
{
uint8_t sense_sz = 0;
struct qla_hw_data *ha = rsp->hw;
struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
srb_t *sp = rsp->status_srb;
struct scsi_cmnd *cp;
uint32_t sense_len;
uint8_t *sense_ptr;
if (!sp || !GET_CMD_SENSE_LEN(sp))
return;
sense_len = GET_CMD_SENSE_LEN(sp);
sense_ptr = GET_CMD_SENSE_PTR(sp);
cp = GET_CMD_SP(sp);
if (cp == NULL) {
ql_log(ql_log_warn, vha, 0x3025,
"cmd is NULL: already returned to OS (sp=%p).\n", sp);
rsp->status_srb = NULL;
return;
}
if (sense_len > sizeof(pkt->data))
sense_sz = sizeof(pkt->data);
else
sense_sz = sense_len;
/* Move sense data. */
if (IS_FWI2_CAPABLE(ha))
host_to_fcp_swap(pkt->data, sizeof(pkt->data));
memcpy(sense_ptr, pkt->data, sense_sz);
ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
sense_ptr, sense_sz);
sense_len -= sense_sz;
sense_ptr += sense_sz;
SET_CMD_SENSE_PTR(sp, sense_ptr);
SET_CMD_SENSE_LEN(sp, sense_len);
/* Place command on done queue. */
if (sense_len == 0) {
rsp->status_srb = NULL;
sp->done(sp, cp->result);
}
}
/**
* qla2x00_error_entry() - Process an error entry.
* @vha: SCSI driver HA context
* @rsp: response queue
* @pkt: Entry pointer
* return : 1=allow further error analysis. 0=no additional error analysis.
*/
static int
qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
{
srb_t *sp;
struct qla_hw_data *ha = vha->hw;
const char func[] = "ERROR-IOCB";
uint16_t que = MSW(pkt->handle);
struct req_que *req = NULL;
int res = DID_ERROR << 16;
u16 index;
ql_dbg(ql_dbg_async, vha, 0x502a,
"iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
if (que >= ha->max_req_queues || !ha->req_q_map[que])
goto fatal;
req = ha->req_q_map[que];
if (pkt->entry_status & RF_BUSY)
res = DID_BUS_BUSY << 16;
if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
return 0;
switch (pkt->entry_type) {
case NOTIFY_ACK_TYPE:
case STATUS_CONT_TYPE:
case LOGINOUT_PORT_IOCB_TYPE:
case CT_IOCB_TYPE:
case ELS_IOCB_TYPE:
case ABORT_IOCB_TYPE:
case MBX_IOCB_TYPE:
default:
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (sp) {
sp->done(sp, res);
return 0;
}
break;
case SA_UPDATE_IOCB_TYPE:
case ABTS_RESP_24XX:
case CTIO_TYPE7:
case CTIO_CRC2:
return 1;
case STATUS_TYPE:
sp = qla_get_sp_from_handle(vha, func, req, pkt, &index);
if (sp) {
sp->done(sp, res);
req->outstanding_cmds[index] = NULL;
return 0;
}
break;
}
fatal:
ql_log(ql_log_warn, vha, 0x5030,
"Error entry - invalid handle/queue (%04x).\n", que);
return 0;
}
/**
* qla24xx_mbx_completion() - Process mailbox command completions.
* @vha: SCSI driver HA context
* @mb0: Mailbox0 register
*/
static void
qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
{
uint16_t cnt;
uint32_t mboxes;
__le16 __iomem *wptr;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
/* Read all mbox registers? */
WARN_ON_ONCE(ha->mbx_count > 32);
mboxes = (1ULL << ha->mbx_count) - 1;
if (!ha->mcp)
ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
else
mboxes = ha->mcp->in_mb;
/* Load return mailbox registers. */
ha->flags.mbox_int = 1;
ha->mailbox_out[0] = mb0;
mboxes >>= 1;
wptr = ®->mailbox1;
for (cnt = 1; cnt < ha->mbx_count; cnt++) {
if (mboxes & BIT_0)
ha->mailbox_out[cnt] = rd_reg_word(wptr);
mboxes >>= 1;
wptr++;
}
}
static void
qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
struct abort_entry_24xx *pkt)
{
const char func[] = "ABT_IOCB";
srb_t *sp;
srb_t *orig_sp = NULL;
struct srb_iocb *abt;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (!sp)
return;
abt = &sp->u.iocb_cmd;
abt->u.abt.comp_status = pkt->comp_status;
orig_sp = sp->cmd_sp;
/* Need to pass original sp */
if (orig_sp)
qla_nvme_abort_process_comp_status(pkt, orig_sp);
sp->done(sp, 0);
}
void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
struct pt_ls4_request *pkt, struct req_que *req)
{
srb_t *sp;
const char func[] = "LS4_IOCB";
uint16_t comp_status;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (!sp)
return;
comp_status = le16_to_cpu(pkt->status);
sp->done(sp, comp_status);
}
/**
* qla_chk_cont_iocb_avail - check for all continuation iocbs are available
* before iocb processing can start.
* @vha: host adapter pointer
* @rsp: respond queue
* @pkt: head iocb describing how many continuation iocb
* Return: 0 all iocbs has arrived, xx- all iocbs have not arrived.
*/
static int qla_chk_cont_iocb_avail(struct scsi_qla_host *vha,
struct rsp_que *rsp, response_t *pkt, u32 rsp_q_in)
{
int start_pkt_ring_index;
u32 iocb_cnt = 0;
int rc = 0;
if (pkt->entry_count == 1)
return rc;
/* ring_index was pre-increment. set it back to current pkt */
if (rsp->ring_index == 0)
start_pkt_ring_index = rsp->length - 1;
else
start_pkt_ring_index = rsp->ring_index - 1;
if (rsp_q_in < start_pkt_ring_index)
/* q in ptr is wrapped */
iocb_cnt = rsp->length - start_pkt_ring_index + rsp_q_in;
else
iocb_cnt = rsp_q_in - start_pkt_ring_index;
if (iocb_cnt < pkt->entry_count)
rc = -EIO;
ql_dbg(ql_dbg_init, vha, 0x5091,
"%s - ring %p pkt %p entry count %d iocb_cnt %d rsp_q_in %d rc %d\n",
__func__, rsp->ring, pkt, pkt->entry_count, iocb_cnt, rsp_q_in, rc);
return rc;
}
static void qla_marker_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
struct mrk_entry_24xx *pkt)
{
const char func[] = "MRK-IOCB";
srb_t *sp;
int res = QLA_SUCCESS;
if (!IS_FWI2_CAPABLE(vha->hw))
return;
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (!sp)
return;
if (pkt->entry_status) {
ql_dbg(ql_dbg_taskm, vha, 0x8025, "marker failure.\n");
res = QLA_COMMAND_ERROR;
}
sp->u.iocb_cmd.u.tmf.data = res;
sp->done(sp, res);
}
/**
* qla24xx_process_response_queue() - Process response queue entries.
* @vha: SCSI driver HA context
* @rsp: response queue
*/
void qla24xx_process_response_queue(struct scsi_qla_host *vha,
struct rsp_que *rsp)
{
struct sts_entry_24xx *pkt;
struct qla_hw_data *ha = vha->hw;
struct purex_entry_24xx *purex_entry;
struct purex_item *pure_item;
struct pt_ls4_rx_unsol *p;
u16 rsp_in = 0, cur_ring_index;
int is_shadow_hba;
if (!ha->flags.fw_started)
return;
if (rsp->qpair->cpuid != raw_smp_processor_id() || !rsp->qpair->rcv_intr) {
rsp->qpair->rcv_intr = 1;
if (!rsp->qpair->cpu_mapped)
qla_cpu_update(rsp->qpair, raw_smp_processor_id());
}
#define __update_rsp_in(_is_shadow_hba, _rsp, _rsp_in) \
do { \
_rsp_in = _is_shadow_hba ? *(_rsp)->in_ptr : \
rd_reg_dword_relaxed((_rsp)->rsp_q_in); \
} while (0)
is_shadow_hba = IS_SHADOW_REG_CAPABLE(ha);
__update_rsp_in(is_shadow_hba, rsp, rsp_in);
while (rsp->ring_index != rsp_in &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
cur_ring_index = rsp->ring_index;
rsp->ring_index++;
if (rsp->ring_index == rsp->length) {
rsp->ring_index = 0;
rsp->ring_ptr = rsp->ring;
} else {
rsp->ring_ptr++;
}
if (pkt->entry_status != 0) {
if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
goto process_err;
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
wmb();
continue;
}
process_err:
switch (pkt->entry_type) {
case STATUS_TYPE:
qla2x00_status_entry(vha, rsp, pkt);
break;
case STATUS_CONT_TYPE:
qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
break;
case VP_RPT_ID_IOCB_TYPE:
qla24xx_report_id_acquisition(vha,
(struct vp_rpt_id_entry_24xx *)pkt);
break;
case LOGINOUT_PORT_IOCB_TYPE:
qla24xx_logio_entry(vha, rsp->req,
(struct logio_entry_24xx *)pkt);
break;
case CT_IOCB_TYPE:
qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
break;
case ELS_IOCB_TYPE:
qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
break;
case ABTS_RECV_24XX:
if (qla_ini_mode_enabled(vha)) {
pure_item = qla24xx_copy_std_pkt(vha, pkt);
if (!pure_item)
break;
qla24xx_queue_purex_item(vha, pure_item,
qla24xx_process_abts);
break;
}
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha)) {
/* ensure that the ATIO queue is empty */
qlt_handle_abts_recv(vha, rsp,
(response_t *)pkt);
break;
} else {
qlt_24xx_process_atio_queue(vha, 1);
}
fallthrough;
case ABTS_RESP_24XX:
case CTIO_TYPE7:
case CTIO_CRC2:
qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
break;
case PT_LS4_REQUEST:
qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
rsp->req);
break;
case NOTIFY_ACK_TYPE:
if (pkt->handle == QLA_TGT_SKIP_HANDLE)
qlt_response_pkt_all_vps(vha, rsp,
(response_t *)pkt);
else
qla24xxx_nack_iocb_entry(vha, rsp->req,
(struct nack_to_isp *)pkt);
break;
case MARKER_TYPE:
qla_marker_iocb_entry(vha, rsp->req, (struct mrk_entry_24xx *)pkt);
break;
case ABORT_IOCB_TYPE:
qla24xx_abort_iocb_entry(vha, rsp->req,
(struct abort_entry_24xx *)pkt);
break;
case MBX_IOCB_TYPE:
qla24xx_mbx_iocb_entry(vha, rsp->req,
(struct mbx_24xx_entry *)pkt);
break;
case VP_CTRL_IOCB_TYPE:
qla_ctrlvp_completed(vha, rsp->req,
(struct vp_ctrl_entry_24xx *)pkt);
break;
case PUREX_IOCB_TYPE:
purex_entry = (void *)pkt;
switch (purex_entry->els_frame_payload[3]) {
case ELS_RDP:
pure_item = qla24xx_copy_std_pkt(vha, pkt);
if (!pure_item)
break;
qla24xx_queue_purex_item(vha, pure_item,
qla24xx_process_purex_rdp);
break;
case ELS_FPIN:
if (!vha->hw->flags.scm_enabled) {
ql_log(ql_log_warn, vha, 0x5094,
"SCM not active for this port\n");
break;
}
pure_item = qla27xx_copy_fpin_pkt(vha,
(void **)&pkt, &rsp);
__update_rsp_in(is_shadow_hba, rsp, rsp_in);
if (!pure_item)
break;
qla24xx_queue_purex_item(vha, pure_item,
qla27xx_process_purex_fpin);
break;
case ELS_AUTH_ELS:
if (qla_chk_cont_iocb_avail(vha, rsp, (response_t *)pkt, rsp_in)) {
/*
* ring_ptr and ring_index were
* pre-incremented above. Reset them
* back to current. Wait for next
* interrupt with all IOCBs to arrive
* and re-process.
*/
rsp->ring_ptr = (response_t *)pkt;
rsp->ring_index = cur_ring_index;
ql_dbg(ql_dbg_init, vha, 0x5091,
"Defer processing ELS opcode %#x...\n",
purex_entry->els_frame_payload[3]);
return;
}
qla24xx_auth_els(vha, (void **)&pkt, &rsp);
break;
default:
ql_log(ql_log_warn, vha, 0x509c,
"Discarding ELS Request opcode 0x%x\n",
purex_entry->els_frame_payload[3]);
}
break;
case SA_UPDATE_IOCB_TYPE:
qla28xx_sa_update_iocb_entry(vha, rsp->req,
(struct sa_update_28xx *)pkt);
break;
case PT_LS4_UNSOL:
p = (void *)pkt;
if (qla_chk_cont_iocb_avail(vha, rsp, (response_t *)pkt, rsp_in)) {
rsp->ring_ptr = (response_t *)pkt;
rsp->ring_index = cur_ring_index;
ql_dbg(ql_dbg_init, vha, 0x2124,
"Defer processing UNSOL LS req opcode %#x...\n",
p->payload[0]);
return;
}
qla2xxx_process_purls_iocb((void **)&pkt, &rsp);
break;
default:
/* Type Not Supported. */
ql_dbg(ql_dbg_async, vha, 0x5042,
"Received unknown response pkt type 0x%x entry status=%x.\n",
pkt->entry_type, pkt->entry_status);
break;
}
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
wmb();
}
/* Adjust ring index */
if (IS_P3P_TYPE(ha)) {
struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
wrt_reg_dword(®->rsp_q_out[0], rsp->ring_index);
} else {
wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
}
}
static void
qla2xxx_check_risc_status(scsi_qla_host_t *vha)
{
int rval;
uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return;
rval = QLA_SUCCESS;
wrt_reg_dword(®->iobase_addr, 0x7C00);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_window, 0x0001);
for (cnt = 10000; (rd_reg_dword(®->iobase_window) & BIT_0) == 0 &&
rval == QLA_SUCCESS; cnt--) {
if (cnt) {
wrt_reg_dword(®->iobase_window, 0x0001);
udelay(10);
} else
rval = QLA_FUNCTION_TIMEOUT;
}
if (rval == QLA_SUCCESS)
goto next_test;
rval = QLA_SUCCESS;
wrt_reg_dword(®->iobase_window, 0x0003);
for (cnt = 100; (rd_reg_dword(®->iobase_window) & BIT_0) == 0 &&
rval == QLA_SUCCESS; cnt--) {
if (cnt) {
wrt_reg_dword(®->iobase_window, 0x0003);
udelay(10);
} else
rval = QLA_FUNCTION_TIMEOUT;
}
if (rval != QLA_SUCCESS)
goto done;
next_test:
if (rd_reg_dword(®->iobase_c8) & BIT_3)
ql_log(ql_log_info, vha, 0x504c,
"Additional code -- 0x55AA.\n");
done:
wrt_reg_dword(®->iobase_window, 0x0000);
rd_reg_dword(®->iobase_window);
}
/**
* qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
* @irq: interrupt number
* @dev_id: SCSI driver HA context
*
* Called by system whenever the host adapter generates an interrupt.
*
* Returns handled flag.
*/
irqreturn_t
qla24xx_intr_handler(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct device_reg_24xx __iomem *reg;
int status;
unsigned long iter;
uint32_t stat;
uint32_t hccr;
uint16_t mb[8];
struct rsp_que *rsp;
unsigned long flags;
bool process_atio = false;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
ql_log(ql_log_info, NULL, 0x5059,
"%s: NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
reg = &ha->iobase->isp24;
status = 0;
if (unlikely(pci_channel_offline(ha->pdev)))
return IRQ_HANDLED;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
for (iter = 50; iter--; ) {
stat = rd_reg_dword(®->host_status);
if (qla2x00_check_reg32_for_disconnect(vha, stat))
break;
if (stat & HSRX_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))
break;
hccr = rd_reg_dword(®->hccr);
ql_log(ql_log_warn, vha, 0x504b,
"RISC paused -- HCCR=%x, Dumping firmware.\n",
hccr);
qla2xxx_check_risc_status(vha);
ha->isp_ops->fw_dump(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
} else if ((stat & HSRX_RISC_INT) == 0)
break;
switch (stat & 0xff) {
case INTR_ROM_MB_SUCCESS:
case INTR_ROM_MB_FAILED:
case INTR_MB_SUCCESS:
case INTR_MB_FAILED:
qla24xx_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
break;
case INTR_ASYNC_EVENT:
mb[0] = MSW(stat);
mb[1] = rd_reg_word(®->mailbox1);
mb[2] = rd_reg_word(®->mailbox2);
mb[3] = rd_reg_word(®->mailbox3);
qla2x00_async_event(vha, rsp, mb);
break;
case INTR_RSP_QUE_UPDATE:
case INTR_RSP_QUE_UPDATE_83XX:
qla24xx_process_response_queue(vha, rsp);
break;
case INTR_ATIO_QUE_UPDATE_27XX:
case INTR_ATIO_QUE_UPDATE:
process_atio = true;
break;
case INTR_ATIO_RSP_QUE_UPDATE:
process_atio = true;
qla24xx_process_response_queue(vha, rsp);
break;
default:
ql_dbg(ql_dbg_async, vha, 0x504f,
"Unrecognized interrupt type (%d).\n", stat * 0xff);
break;
}
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
rd_reg_dword_relaxed(®->hccr);
if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
ndelay(3500);
}
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (process_atio) {
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
qlt_24xx_process_atio_queue(vha, 0);
spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
}
return IRQ_HANDLED;
}
static irqreturn_t
qla24xx_msix_rsp_q(int irq, void *dev_id)
{
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_24xx __iomem *reg;
struct scsi_qla_host *vha;
unsigned long flags;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
ql_log(ql_log_info, NULL, 0x505a,
"%s: NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
reg = &ha->iobase->isp24;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
qla24xx_process_response_queue(vha, rsp);
if (!ha->flags.disable_msix_handshake) {
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
rd_reg_dword_relaxed(®->hccr);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return IRQ_HANDLED;
}
static irqreturn_t
qla24xx_msix_default(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_24xx __iomem *reg;
int status;
uint32_t stat;
uint32_t hccr;
uint16_t mb[8];
unsigned long flags;
bool process_atio = false;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
ql_log(ql_log_info, NULL, 0x505c,
"%s: NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
reg = &ha->iobase->isp24;
status = 0;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
do {
stat = rd_reg_dword(®->host_status);
if (qla2x00_check_reg32_for_disconnect(vha, stat))
break;
if (stat & HSRX_RISC_PAUSED) {
if (unlikely(pci_channel_offline(ha->pdev)))
break;
hccr = rd_reg_dword(®->hccr);
ql_log(ql_log_info, vha, 0x5050,
"RISC paused -- HCCR=%x, Dumping firmware.\n",
hccr);
qla2xxx_check_risc_status(vha);
vha->hw_err_cnt++;
ha->isp_ops->fw_dump(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
} else if ((stat & HSRX_RISC_INT) == 0)
break;
switch (stat & 0xff) {
case INTR_ROM_MB_SUCCESS:
case INTR_ROM_MB_FAILED:
case INTR_MB_SUCCESS:
case INTR_MB_FAILED:
qla24xx_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
break;
case INTR_ASYNC_EVENT:
mb[0] = MSW(stat);
mb[1] = rd_reg_word(®->mailbox1);
mb[2] = rd_reg_word(®->mailbox2);
mb[3] = rd_reg_word(®->mailbox3);
qla2x00_async_event(vha, rsp, mb);
break;
case INTR_RSP_QUE_UPDATE:
case INTR_RSP_QUE_UPDATE_83XX:
qla24xx_process_response_queue(vha, rsp);
break;
case INTR_ATIO_QUE_UPDATE_27XX:
case INTR_ATIO_QUE_UPDATE:
process_atio = true;
break;
case INTR_ATIO_RSP_QUE_UPDATE:
process_atio = true;
qla24xx_process_response_queue(vha, rsp);
break;
default:
ql_dbg(ql_dbg_async, vha, 0x5051,
"Unrecognized interrupt type (%d).\n", stat & 0xff);
break;
}
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
} while (0);
qla2x00_handle_mbx_completion(ha, status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (process_atio) {
spin_lock_irqsave(&ha->tgt.atio_lock, flags);
qlt_24xx_process_atio_queue(vha, 0);
spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
}
return IRQ_HANDLED;
}
irqreturn_t
qla2xxx_msix_rsp_q(int irq, void *dev_id)
{
struct qla_hw_data *ha;
struct qla_qpair *qpair;
qpair = dev_id;
if (!qpair) {
ql_log(ql_log_info, NULL, 0x505b,
"%s: NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = qpair->hw;
queue_work(ha->wq, &qpair->q_work);
return IRQ_HANDLED;
}
irqreturn_t
qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
{
struct qla_hw_data *ha;
struct qla_qpair *qpair;
struct device_reg_24xx __iomem *reg;
unsigned long flags;
qpair = dev_id;
if (!qpair) {
ql_log(ql_log_info, NULL, 0x505b,
"%s: NULL response queue pointer.\n", __func__);
return IRQ_NONE;
}
ha = qpair->hw;
reg = &ha->iobase->isp24;
spin_lock_irqsave(&ha->hardware_lock, flags);
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
queue_work(ha->wq, &qpair->q_work);
return IRQ_HANDLED;
}
/* Interrupt handling helpers. */
struct qla_init_msix_entry {
const char *name;
irq_handler_t handler;
};
static const struct qla_init_msix_entry msix_entries[] = {
{ "default", qla24xx_msix_default },
{ "rsp_q", qla24xx_msix_rsp_q },
{ "atio_q", qla83xx_msix_atio_q },
{ "qpair_multiq", qla2xxx_msix_rsp_q },
{ "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
};
static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
{ "qla2xxx (default)", qla82xx_msix_default },
{ "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
};
static int
qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
{
int i, ret;
struct qla_msix_entry *qentry;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
int min_vecs = QLA_BASE_VECTORS;
struct irq_affinity desc = {
.pre_vectors = QLA_BASE_VECTORS,
};
if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
IS_ATIO_MSIX_CAPABLE(ha)) {
desc.pre_vectors++;
min_vecs++;
}
if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
/* user wants to control IRQ setting for target mode */
ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
PCI_IRQ_MSIX);
} else
ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
&desc);
if (ret < 0) {
ql_log(ql_log_fatal, vha, 0x00c7,
"MSI-X: Failed to enable support, "
"giving up -- %d/%d.\n",
ha->msix_count, ret);
goto msix_out;
} else if (ret < ha->msix_count) {
ql_log(ql_log_info, vha, 0x00c6,
"MSI-X: Using %d vectors\n", ret);
ha->msix_count = ret;
/* Recalculate queue values */
if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
ha->max_req_queues = ha->msix_count - 1;
/* ATIOQ needs 1 vector. That's 1 less QPair */
if (QLA_TGT_MODE_ENABLED())
ha->max_req_queues--;
ha->max_rsp_queues = ha->max_req_queues;
ha->max_qpairs = ha->max_req_queues - 1;
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
"Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
}
}
vha->irq_offset = desc.pre_vectors;
ha->msix_entries = kcalloc(ha->msix_count,
sizeof(struct qla_msix_entry),
GFP_KERNEL);
if (!ha->msix_entries) {
ql_log(ql_log_fatal, vha, 0x00c8,
"Failed to allocate memory for ha->msix_entries.\n");
ret = -ENOMEM;
goto free_irqs;
}
ha->flags.msix_enabled = 1;
for (i = 0; i < ha->msix_count; i++) {
qentry = &ha->msix_entries[i];
qentry->vector = pci_irq_vector(ha->pdev, i);
qentry->vector_base0 = i;
qentry->entry = i;
qentry->have_irq = 0;
qentry->in_use = 0;
qentry->handle = NULL;
}
/* Enable MSI-X vectors for the base queue */
for (i = 0; i < QLA_BASE_VECTORS; i++) {
qentry = &ha->msix_entries[i];
qentry->handle = rsp;
rsp->msix = qentry;
scnprintf(qentry->name, sizeof(qentry->name),
"qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
if (IS_P3P_TYPE(ha))
ret = request_irq(qentry->vector,
qla82xx_msix_entries[i].handler,
0, qla82xx_msix_entries[i].name, rsp);
else
ret = request_irq(qentry->vector,
msix_entries[i].handler,
0, qentry->name, rsp);
if (ret)
goto msix_register_fail;
qentry->have_irq = 1;
qentry->in_use = 1;
}
/*
* If target mode is enable, also request the vector for the ATIO
* queue.
*/
if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
IS_ATIO_MSIX_CAPABLE(ha)) {
qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
rsp->msix = qentry;
qentry->handle = rsp;
scnprintf(qentry->name, sizeof(qentry->name),
"qla2xxx%lu_%s", vha->host_no,
msix_entries[QLA_ATIO_VECTOR].name);
qentry->in_use = 1;
ret = request_irq(qentry->vector,
msix_entries[QLA_ATIO_VECTOR].handler,
0, qentry->name, rsp);
qentry->have_irq = 1;
}
msix_register_fail:
if (ret) {
ql_log(ql_log_fatal, vha, 0x00cb,
"MSI-X: unable to register handler -- %x/%d.\n",
qentry->vector, ret);
qla2x00_free_irqs(vha);
ha->mqenable = 0;
goto msix_out;
}
/* Enable MSI-X vector for response queue update for queue 0 */
if (IS_MQUE_CAPABLE(ha) &&
(ha->msixbase && ha->mqiobase && ha->max_qpairs))
ha->mqenable = 1;
else
ha->mqenable = 0;
ql_dbg(ql_dbg_multiq, vha, 0xc005,
"mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
ql_dbg(ql_dbg_init, vha, 0x0055,
"mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
msix_out:
return ret;
free_irqs:
pci_free_irq_vectors(ha->pdev);
goto msix_out;
}
int
qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
{
int ret = QLA_FUNCTION_FAILED;
device_reg_t *reg = ha->iobase;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
/* If possible, enable MSI-X. */
if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
!IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
!IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
goto skip_msi;
if (ql2xenablemsix == 2)
goto skip_msix;
if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
(ha->pdev->subsystem_device == 0x7040 ||
ha->pdev->subsystem_device == 0x7041 ||
ha->pdev->subsystem_device == 0x1705)) {
ql_log(ql_log_warn, vha, 0x0034,
"MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
ha->pdev->subsystem_vendor,
ha->pdev->subsystem_device);
goto skip_msi;
}
if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
ql_log(ql_log_warn, vha, 0x0035,
"MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
goto skip_msix;
}
ret = qla24xx_enable_msix(ha, rsp);
if (!ret) {
ql_dbg(ql_dbg_init, vha, 0x0036,
"MSI-X: Enabled (0x%X, 0x%X).\n",
ha->chip_revision, ha->fw_attributes);
goto clear_risc_ints;
}
skip_msix:
ql_log(ql_log_info, vha, 0x0037,
"Falling back-to MSI mode -- ret=%d.\n", ret);
if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
!IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
goto skip_msi;
ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
if (ret > 0) {
ql_dbg(ql_dbg_init, vha, 0x0038,
"MSI: Enabled.\n");
ha->flags.msi_enabled = 1;
} else
ql_log(ql_log_warn, vha, 0x0039,
"Falling back-to INTa mode -- ret=%d.\n", ret);
skip_msi:
/* Skip INTx on ISP82xx. */
if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
return QLA_FUNCTION_FAILED;
ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
ha->flags.msi_enabled ? 0 : IRQF_SHARED,
QLA2XXX_DRIVER_NAME, rsp);
if (ret) {
ql_log(ql_log_warn, vha, 0x003a,
"Failed to reserve interrupt %d already in use.\n",
ha->pdev->irq);
goto fail;
} else if (!ha->flags.msi_enabled) {
ql_dbg(ql_dbg_init, vha, 0x0125,
"INTa mode: Enabled.\n");
ha->flags.mr_intr_valid = 1;
/* Set max_qpair to 0, as MSI-X and MSI in not enabled */
ha->max_qpairs = 0;
}
clear_risc_ints:
if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
goto fail;
spin_lock_irq(&ha->hardware_lock);
wrt_reg_word(®->isp.semaphore, 0);
spin_unlock_irq(&ha->hardware_lock);
fail:
return ret;
}
void
qla2x00_free_irqs(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
struct rsp_que *rsp;
struct qla_msix_entry *qentry;
int i;
/*
* We need to check that ha->rsp_q_map is valid in case we are called
* from a probe failure context.
*/
if (!ha->rsp_q_map || !ha->rsp_q_map[0])
goto free_irqs;
rsp = ha->rsp_q_map[0];
if (ha->flags.msix_enabled) {
for (i = 0; i < ha->msix_count; i++) {
qentry = &ha->msix_entries[i];
if (qentry->have_irq) {
irq_set_affinity_notifier(qentry->vector, NULL);
free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
}
}
kfree(ha->msix_entries);
ha->msix_entries = NULL;
ha->flags.msix_enabled = 0;
ql_dbg(ql_dbg_init, vha, 0x0042,
"Disabled MSI-X.\n");
} else {
free_irq(pci_irq_vector(ha->pdev, 0), rsp);
}
free_irqs:
pci_free_irq_vectors(ha->pdev);
}
int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
struct qla_msix_entry *msix, int vector_type)
{
const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
int ret;
scnprintf(msix->name, sizeof(msix->name),
"qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
if (ret) {
ql_log(ql_log_fatal, vha, 0x00e6,
"MSI-X: Unable to register handler -- %x/%d.\n",
msix->vector, ret);
return ret;
}
msix->have_irq = 1;
msix->handle = qpair;
qla_mapq_init_qp_cpu_map(ha, msix, qpair);
return ret;
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_isr.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_target.h"
#include <linux/kthread.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/delay.h>
static int qla24xx_vport_disable(struct fc_vport *, bool);
/* SYSFS attributes --------------------------------------------------------- */
static ssize_t
qla2x00_sysfs_read_fw_dump(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
int rval = 0;
if (!(ha->fw_dump_reading || ha->mctp_dump_reading ||
ha->mpi_fw_dump_reading))
return 0;
mutex_lock(&ha->optrom_mutex);
if (IS_P3P_TYPE(ha)) {
if (off < ha->md_template_size) {
rval = memory_read_from_buffer(buf, count,
&off, ha->md_tmplt_hdr, ha->md_template_size);
} else {
off -= ha->md_template_size;
rval = memory_read_from_buffer(buf, count,
&off, ha->md_dump, ha->md_dump_size);
}
} else if (ha->mctp_dumped && ha->mctp_dump_reading) {
rval = memory_read_from_buffer(buf, count, &off, ha->mctp_dump,
MCTP_DUMP_SIZE);
} else if (ha->mpi_fw_dumped && ha->mpi_fw_dump_reading) {
rval = memory_read_from_buffer(buf, count, &off,
ha->mpi_fw_dump,
ha->mpi_fw_dump_len);
} else if (ha->fw_dump_reading) {
rval = memory_read_from_buffer(buf, count, &off, ha->fw_dump,
ha->fw_dump_len);
} else {
rval = 0;
}
mutex_unlock(&ha->optrom_mutex);
return rval;
}
static ssize_t
qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
int reading;
if (off != 0)
return (0);
reading = simple_strtol(buf, NULL, 10);
switch (reading) {
case 0:
if (!ha->fw_dump_reading)
break;
ql_log(ql_log_info, vha, 0x705d,
"Firmware dump cleared on (%ld).\n", vha->host_no);
if (IS_P3P_TYPE(ha)) {
qla82xx_md_free(vha);
qla82xx_md_prep(vha);
}
ha->fw_dump_reading = 0;
ha->fw_dumped = false;
break;
case 1:
if (ha->fw_dumped && !ha->fw_dump_reading) {
ha->fw_dump_reading = 1;
ql_log(ql_log_info, vha, 0x705e,
"Raw firmware dump ready for read on (%ld).\n",
vha->host_no);
}
break;
case 2:
qla2x00_alloc_fw_dump(vha);
break;
case 3:
if (IS_QLA82XX(ha)) {
qla82xx_idc_lock(ha);
qla82xx_set_reset_owner(vha);
qla82xx_idc_unlock(ha);
} else if (IS_QLA8044(ha)) {
qla8044_idc_lock(ha);
qla82xx_set_reset_owner(vha);
qla8044_idc_unlock(ha);
} else {
qla2x00_system_error(vha);
}
break;
case 4:
if (IS_P3P_TYPE(ha)) {
if (ha->md_tmplt_hdr)
ql_dbg(ql_dbg_user, vha, 0x705b,
"MiniDump supported with this firmware.\n");
else
ql_dbg(ql_dbg_user, vha, 0x709d,
"MiniDump not supported with this firmware.\n");
}
break;
case 5:
if (IS_P3P_TYPE(ha))
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
case 6:
if (!ha->mctp_dump_reading)
break;
ql_log(ql_log_info, vha, 0x70c1,
"MCTP dump cleared on (%ld).\n", vha->host_no);
ha->mctp_dump_reading = 0;
ha->mctp_dumped = 0;
break;
case 7:
if (ha->mctp_dumped && !ha->mctp_dump_reading) {
ha->mctp_dump_reading = 1;
ql_log(ql_log_info, vha, 0x70c2,
"Raw mctp dump ready for read on (%ld).\n",
vha->host_no);
}
break;
case 8:
if (!ha->mpi_fw_dump_reading)
break;
ql_log(ql_log_info, vha, 0x70e7,
"MPI firmware dump cleared on (%ld).\n", vha->host_no);
ha->mpi_fw_dump_reading = 0;
ha->mpi_fw_dumped = 0;
break;
case 9:
if (ha->mpi_fw_dumped && !ha->mpi_fw_dump_reading) {
ha->mpi_fw_dump_reading = 1;
ql_log(ql_log_info, vha, 0x70e8,
"Raw MPI firmware dump ready for read on (%ld).\n",
vha->host_no);
}
break;
case 10:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
ql_log(ql_log_info, vha, 0x70e9,
"Issuing MPI firmware dump on host#%ld.\n",
vha->host_no);
ha->isp_ops->mpi_fw_dump(vha, 0);
}
break;
}
return count;
}
static struct bin_attribute sysfs_fw_dump_attr = {
.attr = {
.name = "fw_dump",
.mode = S_IRUSR | S_IWUSR,
},
.size = 0,
.read = qla2x00_sysfs_read_fw_dump,
.write = qla2x00_sysfs_write_fw_dump,
};
static ssize_t
qla2x00_sysfs_read_nvram(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
uint32_t faddr;
struct active_regions active_regions = { };
if (!capable(CAP_SYS_ADMIN))
return 0;
mutex_lock(&ha->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&ha->optrom_mutex);
return -EAGAIN;
}
if (!IS_NOCACHE_VPD_TYPE(ha)) {
mutex_unlock(&ha->optrom_mutex);
goto skip;
}
faddr = ha->flt_region_nvram;
if (IS_QLA28XX(ha)) {
qla28xx_get_aux_images(vha, &active_regions);
if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
faddr = ha->flt_region_nvram_sec;
}
ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
mutex_unlock(&ha->optrom_mutex);
skip:
return memory_read_from_buffer(buf, count, &off, ha->nvram,
ha->nvram_size);
}
static ssize_t
qla2x00_sysfs_write_nvram(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
uint16_t cnt;
if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size ||
!ha->isp_ops->write_nvram)
return -EINVAL;
/* Checksum NVRAM. */
if (IS_FWI2_CAPABLE(ha)) {
__le32 *iter = (__force __le32 *)buf;
uint32_t chksum;
chksum = 0;
for (cnt = 0; cnt < ((count >> 2) - 1); cnt++, iter++)
chksum += le32_to_cpu(*iter);
chksum = ~chksum + 1;
*iter = cpu_to_le32(chksum);
} else {
uint8_t *iter;
uint8_t chksum;
iter = (uint8_t *)buf;
chksum = 0;
for (cnt = 0; cnt < count - 1; cnt++)
chksum += *iter++;
chksum = ~chksum + 1;
*iter = chksum;
}
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x705f,
"HBA not online, failing NVRAM update.\n");
return -EAGAIN;
}
mutex_lock(&ha->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&ha->optrom_mutex);
return -EAGAIN;
}
/* Write NVRAM. */
ha->isp_ops->write_nvram(vha, buf, ha->nvram_base, count);
ha->isp_ops->read_nvram(vha, ha->nvram, ha->nvram_base,
count);
mutex_unlock(&ha->optrom_mutex);
ql_dbg(ql_dbg_user, vha, 0x7060,
"Setting ISP_ABORT_NEEDED\n");
/* NVRAM settings take effect immediately. */
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_chip_reset(vha);
return count;
}
static struct bin_attribute sysfs_nvram_attr = {
.attr = {
.name = "nvram",
.mode = S_IRUSR | S_IWUSR,
},
.size = 512,
.read = qla2x00_sysfs_read_nvram,
.write = qla2x00_sysfs_write_nvram,
};
static ssize_t
qla2x00_sysfs_read_optrom(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
ssize_t rval = 0;
mutex_lock(&ha->optrom_mutex);
if (ha->optrom_state != QLA_SREADING)
goto out;
rval = memory_read_from_buffer(buf, count, &off, ha->optrom_buffer,
ha->optrom_region_size);
out:
mutex_unlock(&ha->optrom_mutex);
return rval;
}
static ssize_t
qla2x00_sysfs_write_optrom(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
mutex_lock(&ha->optrom_mutex);
if (ha->optrom_state != QLA_SWRITING) {
mutex_unlock(&ha->optrom_mutex);
return -EINVAL;
}
if (off > ha->optrom_region_size) {
mutex_unlock(&ha->optrom_mutex);
return -ERANGE;
}
if (off + count > ha->optrom_region_size)
count = ha->optrom_region_size - off;
memcpy(&ha->optrom_buffer[off], buf, count);
mutex_unlock(&ha->optrom_mutex);
return count;
}
static struct bin_attribute sysfs_optrom_attr = {
.attr = {
.name = "optrom",
.mode = S_IRUSR | S_IWUSR,
},
.size = 0,
.read = qla2x00_sysfs_read_optrom,
.write = qla2x00_sysfs_write_optrom,
};
static ssize_t
qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
uint32_t start = 0;
uint32_t size = ha->optrom_size;
int val, valid;
ssize_t rval = count;
if (off)
return -EINVAL;
if (unlikely(pci_channel_offline(ha->pdev)))
return -EAGAIN;
if (sscanf(buf, "%d:%x:%x", &val, &start, &size) < 1)
return -EINVAL;
if (start > ha->optrom_size)
return -EINVAL;
if (size > ha->optrom_size - start)
size = ha->optrom_size - start;
mutex_lock(&ha->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&ha->optrom_mutex);
return -EAGAIN;
}
switch (val) {
case 0:
if (ha->optrom_state != QLA_SREADING &&
ha->optrom_state != QLA_SWRITING) {
rval = -EINVAL;
goto out;
}
ha->optrom_state = QLA_SWAITING;
ql_dbg(ql_dbg_user, vha, 0x7061,
"Freeing flash region allocation -- 0x%x bytes.\n",
ha->optrom_region_size);
vfree(ha->optrom_buffer);
ha->optrom_buffer = NULL;
break;
case 1:
if (ha->optrom_state != QLA_SWAITING) {
rval = -EINVAL;
goto out;
}
ha->optrom_region_start = start;
ha->optrom_region_size = size;
ha->optrom_state = QLA_SREADING;
ha->optrom_buffer = vzalloc(ha->optrom_region_size);
if (ha->optrom_buffer == NULL) {
ql_log(ql_log_warn, vha, 0x7062,
"Unable to allocate memory for optrom retrieval "
"(%x).\n", ha->optrom_region_size);
ha->optrom_state = QLA_SWAITING;
rval = -ENOMEM;
goto out;
}
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7063,
"HBA not online, failing NVRAM update.\n");
rval = -EAGAIN;
goto out;
}
ql_dbg(ql_dbg_user, vha, 0x7064,
"Reading flash region -- 0x%x/0x%x.\n",
ha->optrom_region_start, ha->optrom_region_size);
ha->isp_ops->read_optrom(vha, ha->optrom_buffer,
ha->optrom_region_start, ha->optrom_region_size);
break;
case 2:
if (ha->optrom_state != QLA_SWAITING) {
rval = -EINVAL;
goto out;
}
/*
* We need to be more restrictive on which FLASH regions are
* allowed to be updated via user-space. Regions accessible
* via this method include:
*
* ISP21xx/ISP22xx/ISP23xx type boards:
*
* 0x000000 -> 0x020000 -- Boot code.
*
* ISP2322/ISP24xx type boards:
*
* 0x000000 -> 0x07ffff -- Boot code.
* 0x080000 -> 0x0fffff -- Firmware.
*
* ISP25xx type boards:
*
* 0x000000 -> 0x07ffff -- Boot code.
* 0x080000 -> 0x0fffff -- Firmware.
* 0x120000 -> 0x12ffff -- VPD and HBA parameters.
*
* > ISP25xx type boards:
*
* None -- should go through BSG.
*/
valid = 0;
if (ha->optrom_size == OPTROM_SIZE_2300 && start == 0)
valid = 1;
else if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
valid = 1;
if (!valid) {
ql_log(ql_log_warn, vha, 0x7065,
"Invalid start region 0x%x/0x%x.\n", start, size);
rval = -EINVAL;
goto out;
}
ha->optrom_region_start = start;
ha->optrom_region_size = size;
ha->optrom_state = QLA_SWRITING;
ha->optrom_buffer = vzalloc(ha->optrom_region_size);
if (ha->optrom_buffer == NULL) {
ql_log(ql_log_warn, vha, 0x7066,
"Unable to allocate memory for optrom update "
"(%x)\n", ha->optrom_region_size);
ha->optrom_state = QLA_SWAITING;
rval = -ENOMEM;
goto out;
}
ql_dbg(ql_dbg_user, vha, 0x7067,
"Staging flash region write -- 0x%x/0x%x.\n",
ha->optrom_region_start, ha->optrom_region_size);
break;
case 3:
if (ha->optrom_state != QLA_SWRITING) {
rval = -EINVAL;
goto out;
}
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7068,
"HBA not online, failing flash update.\n");
rval = -EAGAIN;
goto out;
}
ql_dbg(ql_dbg_user, vha, 0x7069,
"Writing flash region -- 0x%x/0x%x.\n",
ha->optrom_region_start, ha->optrom_region_size);
rval = ha->isp_ops->write_optrom(vha, ha->optrom_buffer,
ha->optrom_region_start, ha->optrom_region_size);
if (rval)
rval = -EIO;
break;
default:
rval = -EINVAL;
}
out:
mutex_unlock(&ha->optrom_mutex);
return rval;
}
static struct bin_attribute sysfs_optrom_ctl_attr = {
.attr = {
.name = "optrom_ctl",
.mode = S_IWUSR,
},
.size = 0,
.write = qla2x00_sysfs_write_optrom_ctl,
};
static ssize_t
qla2x00_sysfs_read_vpd(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
uint32_t faddr;
struct active_regions active_regions = { };
if (unlikely(pci_channel_offline(ha->pdev)))
return -EAGAIN;
if (!capable(CAP_SYS_ADMIN))
return -EINVAL;
if (!IS_NOCACHE_VPD_TYPE(ha))
goto skip;
faddr = ha->flt_region_vpd << 2;
if (IS_QLA28XX(ha)) {
qla28xx_get_aux_images(vha, &active_regions);
if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
faddr = ha->flt_region_vpd_sec << 2;
ql_dbg(ql_dbg_init, vha, 0x7070,
"Loading %s nvram image.\n",
active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
"primary" : "secondary");
}
mutex_lock(&ha->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&ha->optrom_mutex);
return -EAGAIN;
}
ha->isp_ops->read_optrom(vha, ha->vpd, faddr, ha->vpd_size);
mutex_unlock(&ha->optrom_mutex);
ha->isp_ops->read_optrom(vha, ha->vpd, faddr, ha->vpd_size);
skip:
return memory_read_from_buffer(buf, count, &off, ha->vpd, ha->vpd_size);
}
static ssize_t
qla2x00_sysfs_write_vpd(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
uint8_t *tmp_data;
if (unlikely(pci_channel_offline(ha->pdev)))
return 0;
if (qla2x00_chip_is_down(vha))
return 0;
if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->vpd_size ||
!ha->isp_ops->write_nvram)
return 0;
if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x706a,
"HBA not online, failing VPD update.\n");
return -EAGAIN;
}
mutex_lock(&ha->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&ha->optrom_mutex);
return -EAGAIN;
}
/* Write NVRAM. */
ha->isp_ops->write_nvram(vha, buf, ha->vpd_base, count);
ha->isp_ops->read_nvram(vha, ha->vpd, ha->vpd_base, count);
/* Update flash version information for 4Gb & above. */
if (!IS_FWI2_CAPABLE(ha)) {
mutex_unlock(&ha->optrom_mutex);
return -EINVAL;
}
tmp_data = vmalloc(256);
if (!tmp_data) {
mutex_unlock(&ha->optrom_mutex);
ql_log(ql_log_warn, vha, 0x706b,
"Unable to allocate memory for VPD information update.\n");
return -ENOMEM;
}
ha->isp_ops->get_flash_version(vha, tmp_data);
vfree(tmp_data);
mutex_unlock(&ha->optrom_mutex);
return count;
}
static struct bin_attribute sysfs_vpd_attr = {
.attr = {
.name = "vpd",
.mode = S_IRUSR | S_IWUSR,
},
.size = 0,
.read = qla2x00_sysfs_read_vpd,
.write = qla2x00_sysfs_write_vpd,
};
static ssize_t
qla2x00_sysfs_read_sfp(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
int rval;
if (!capable(CAP_SYS_ADMIN) || off != 0 || count < SFP_DEV_SIZE)
return 0;
mutex_lock(&vha->hw->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&vha->hw->optrom_mutex);
return 0;
}
rval = qla2x00_read_sfp_dev(vha, buf, count);
mutex_unlock(&vha->hw->optrom_mutex);
if (rval)
return -EIO;
return count;
}
static struct bin_attribute sysfs_sfp_attr = {
.attr = {
.name = "sfp",
.mode = S_IRUSR | S_IWUSR,
},
.size = SFP_DEV_SIZE,
.read = qla2x00_sysfs_read_sfp,
};
static ssize_t
qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
int type;
uint32_t idc_control;
uint8_t *tmp_data = NULL;
if (off != 0)
return -EINVAL;
type = simple_strtol(buf, NULL, 10);
switch (type) {
case 0x2025c:
ql_log(ql_log_info, vha, 0x706e,
"Issuing ISP reset.\n");
if (vha->hw->flags.port_isolated) {
ql_log(ql_log_info, vha, 0x706e,
"Port is isolated, returning.\n");
return -EINVAL;
}
scsi_block_requests(vha->host);
if (IS_QLA82XX(ha)) {
ha->flags.isp82xx_no_md_cap = 1;
qla82xx_idc_lock(ha);
qla82xx_set_reset_owner(vha);
qla82xx_idc_unlock(ha);
} else if (IS_QLA8044(ha)) {
qla8044_idc_lock(ha);
idc_control = qla8044_rd_reg(ha,
QLA8044_IDC_DRV_CTRL);
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
(idc_control | GRACEFUL_RESET_BIT1));
qla82xx_set_reset_owner(vha);
qla8044_idc_unlock(ha);
} else {
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
qla2x00_wait_for_chip_reset(vha);
scsi_unblock_requests(vha->host);
break;
case 0x2025d:
if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return -EPERM;
ql_log(ql_log_info, vha, 0x706f,
"Issuing MPI reset.\n");
if (IS_QLA83XX(ha)) {
uint32_t idc_control;
qla83xx_idc_lock(vha, 0);
__qla83xx_get_idc_control(vha, &idc_control);
idc_control |= QLA83XX_IDC_GRACEFUL_RESET;
__qla83xx_set_idc_control(vha, idc_control);
qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
QLA8XXX_DEV_NEED_RESET);
qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
qla83xx_idc_unlock(vha, 0);
break;
} else {
/* Make sure FC side is not in reset */
WARN_ON_ONCE(qla2x00_wait_for_hba_online(vha) !=
QLA_SUCCESS);
/* Issue MPI reset */
scsi_block_requests(vha->host);
if (qla81xx_restart_mpi_firmware(vha) != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0x7070,
"MPI reset failed.\n");
scsi_unblock_requests(vha->host);
break;
}
break;
case 0x2025e:
if (!IS_P3P_TYPE(ha) || vha != base_vha) {
ql_log(ql_log_info, vha, 0x7071,
"FCoE ctx reset not supported.\n");
return -EPERM;
}
ql_log(ql_log_info, vha, 0x7072,
"Issuing FCoE ctx reset.\n");
set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_fcoe_ctx_reset(vha);
break;
case 0x2025f:
if (!IS_QLA8031(ha))
return -EPERM;
ql_log(ql_log_info, vha, 0x70bc,
"Disabling Reset by IDC control\n");
qla83xx_idc_lock(vha, 0);
__qla83xx_get_idc_control(vha, &idc_control);
idc_control |= QLA83XX_IDC_RESET_DISABLED;
__qla83xx_set_idc_control(vha, idc_control);
qla83xx_idc_unlock(vha, 0);
break;
case 0x20260:
if (!IS_QLA8031(ha))
return -EPERM;
ql_log(ql_log_info, vha, 0x70bd,
"Enabling Reset by IDC control\n");
qla83xx_idc_lock(vha, 0);
__qla83xx_get_idc_control(vha, &idc_control);
idc_control &= ~QLA83XX_IDC_RESET_DISABLED;
__qla83xx_set_idc_control(vha, idc_control);
qla83xx_idc_unlock(vha, 0);
break;
case 0x20261:
ql_dbg(ql_dbg_user, vha, 0x70e0,
"Updating cache versions without reset ");
tmp_data = vmalloc(256);
if (!tmp_data) {
ql_log(ql_log_warn, vha, 0x70e1,
"Unable to allocate memory for VPD information update.\n");
return -ENOMEM;
}
ha->isp_ops->get_flash_version(vha, tmp_data);
vfree(tmp_data);
break;
}
return count;
}
static struct bin_attribute sysfs_reset_attr = {
.attr = {
.name = "reset",
.mode = S_IWUSR,
},
.size = 0,
.write = qla2x00_sysfs_write_reset,
};
static ssize_t
qla2x00_issue_logo(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
int type;
port_id_t did;
if (!capable(CAP_SYS_ADMIN))
return 0;
if (unlikely(pci_channel_offline(vha->hw->pdev)))
return 0;
if (qla2x00_chip_is_down(vha))
return 0;
type = simple_strtol(buf, NULL, 10);
did.b.domain = (type & 0x00ff0000) >> 16;
did.b.area = (type & 0x0000ff00) >> 8;
did.b.al_pa = (type & 0x000000ff);
ql_log(ql_log_info, vha, 0xd04d, "portid=%02x%02x%02x done\n",
did.b.domain, did.b.area, did.b.al_pa);
ql_log(ql_log_info, vha, 0x70e4, "%s: %d\n", __func__, type);
qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, did);
return count;
}
static struct bin_attribute sysfs_issue_logo_attr = {
.attr = {
.name = "issue_logo",
.mode = S_IWUSR,
},
.size = 0,
.write = qla2x00_issue_logo,
};
static ssize_t
qla2x00_sysfs_read_xgmac_stats(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
int rval;
uint16_t actual_size;
if (!capable(CAP_SYS_ADMIN) || off != 0 || count > XGMAC_DATA_SIZE)
return 0;
if (unlikely(pci_channel_offline(ha->pdev)))
return 0;
mutex_lock(&vha->hw->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&vha->hw->optrom_mutex);
return 0;
}
if (ha->xgmac_data)
goto do_read;
ha->xgmac_data = dma_alloc_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
&ha->xgmac_data_dma, GFP_KERNEL);
if (!ha->xgmac_data) {
mutex_unlock(&vha->hw->optrom_mutex);
ql_log(ql_log_warn, vha, 0x7076,
"Unable to allocate memory for XGMAC read-data.\n");
return 0;
}
do_read:
actual_size = 0;
memset(ha->xgmac_data, 0, XGMAC_DATA_SIZE);
rval = qla2x00_get_xgmac_stats(vha, ha->xgmac_data_dma,
XGMAC_DATA_SIZE, &actual_size);
mutex_unlock(&vha->hw->optrom_mutex);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7077,
"Unable to read XGMAC data (%x).\n", rval);
count = 0;
}
count = actual_size > count ? count : actual_size;
memcpy(buf, ha->xgmac_data, count);
return count;
}
static struct bin_attribute sysfs_xgmac_stats_attr = {
.attr = {
.name = "xgmac_stats",
.mode = S_IRUSR,
},
.size = 0,
.read = qla2x00_sysfs_read_xgmac_stats,
};
static ssize_t
qla2x00_sysfs_read_dcbx_tlv(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
struct device, kobj)));
struct qla_hw_data *ha = vha->hw;
int rval;
if (!capable(CAP_SYS_ADMIN) || off != 0 || count > DCBX_TLV_DATA_SIZE)
return 0;
mutex_lock(&vha->hw->optrom_mutex);
if (ha->dcbx_tlv)
goto do_read;
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&vha->hw->optrom_mutex);
return 0;
}
ha->dcbx_tlv = dma_alloc_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
&ha->dcbx_tlv_dma, GFP_KERNEL);
if (!ha->dcbx_tlv) {
mutex_unlock(&vha->hw->optrom_mutex);
ql_log(ql_log_warn, vha, 0x7078,
"Unable to allocate memory for DCBX TLV read-data.\n");
return -ENOMEM;
}
do_read:
memset(ha->dcbx_tlv, 0, DCBX_TLV_DATA_SIZE);
rval = qla2x00_get_dcbx_params(vha, ha->dcbx_tlv_dma,
DCBX_TLV_DATA_SIZE);
mutex_unlock(&vha->hw->optrom_mutex);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7079,
"Unable to read DCBX TLV (%x).\n", rval);
return -EIO;
}
memcpy(buf, ha->dcbx_tlv, count);
return count;
}
static struct bin_attribute sysfs_dcbx_tlv_attr = {
.attr = {
.name = "dcbx_tlv",
.mode = S_IRUSR,
},
.size = 0,
.read = qla2x00_sysfs_read_dcbx_tlv,
};
static struct sysfs_entry {
char *name;
struct bin_attribute *attr;
int type;
} bin_file_entries[] = {
{ "fw_dump", &sysfs_fw_dump_attr, },
{ "nvram", &sysfs_nvram_attr, },
{ "optrom", &sysfs_optrom_attr, },
{ "optrom_ctl", &sysfs_optrom_ctl_attr, },
{ "vpd", &sysfs_vpd_attr, 1 },
{ "sfp", &sysfs_sfp_attr, 1 },
{ "reset", &sysfs_reset_attr, },
{ "issue_logo", &sysfs_issue_logo_attr, },
{ "xgmac_stats", &sysfs_xgmac_stats_attr, 3 },
{ "dcbx_tlv", &sysfs_dcbx_tlv_attr, 3 },
{ NULL },
};
void
qla2x00_alloc_sysfs_attr(scsi_qla_host_t *vha)
{
struct Scsi_Host *host = vha->host;
struct sysfs_entry *iter;
int ret;
for (iter = bin_file_entries; iter->name; iter++) {
if (iter->type && !IS_FWI2_CAPABLE(vha->hw))
continue;
if (iter->type == 2 && !IS_QLA25XX(vha->hw))
continue;
if (iter->type == 3 && !(IS_CNA_CAPABLE(vha->hw)))
continue;
ret = sysfs_create_bin_file(&host->shost_gendev.kobj,
iter->attr);
if (ret)
ql_log(ql_log_warn, vha, 0x00f3,
"Unable to create sysfs %s binary attribute (%d).\n",
iter->name, ret);
else
ql_dbg(ql_dbg_init, vha, 0x00f4,
"Successfully created sysfs %s binary attribute.\n",
iter->name);
}
}
void
qla2x00_free_sysfs_attr(scsi_qla_host_t *vha, bool stop_beacon)
{
struct Scsi_Host *host = vha->host;
struct sysfs_entry *iter;
struct qla_hw_data *ha = vha->hw;
for (iter = bin_file_entries; iter->name; iter++) {
if (iter->type && !IS_FWI2_CAPABLE(ha))
continue;
if (iter->type == 2 && !IS_QLA25XX(ha))
continue;
if (iter->type == 3 && !(IS_CNA_CAPABLE(ha)))
continue;
sysfs_remove_bin_file(&host->shost_gendev.kobj,
iter->attr);
}
if (stop_beacon && ha->beacon_blink_led == 1)
ha->isp_ops->beacon_off(vha);
}
/* Scsi_Host attributes. */
static ssize_t
qla2x00_driver_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%s\n", qla2x00_version_str);
}
static ssize_t
qla2x00_fw_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
char fw_str[128];
return scnprintf(buf, PAGE_SIZE, "%s\n",
ha->isp_ops->fw_version_str(vha, fw_str, sizeof(fw_str)));
}
static ssize_t
qla2x00_serial_num_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
uint32_t sn;
if (IS_QLAFX00(vha->hw)) {
return scnprintf(buf, PAGE_SIZE, "%s\n",
vha->hw->mr.serial_num);
} else if (IS_FWI2_CAPABLE(ha)) {
qla2xxx_get_vpd_field(vha, "SN", buf, PAGE_SIZE - 1);
return strlen(strcat(buf, "\n"));
}
sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1;
return scnprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000,
sn % 100000);
}
static ssize_t
qla2x00_isp_name_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
return scnprintf(buf, PAGE_SIZE, "ISP%04X\n", vha->hw->pdev->device);
}
static ssize_t
qla2x00_isp_id_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (IS_QLAFX00(vha->hw))
return scnprintf(buf, PAGE_SIZE, "%s\n",
vha->hw->mr.hw_version);
return scnprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n",
ha->product_id[0], ha->product_id[1], ha->product_id[2],
ha->product_id[3]);
}
static ssize_t
qla2x00_model_name_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
return scnprintf(buf, PAGE_SIZE, "%s\n", vha->hw->model_number);
}
static ssize_t
qla2x00_model_desc_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
return scnprintf(buf, PAGE_SIZE, "%s\n", vha->hw->model_desc);
}
static ssize_t
qla2x00_pci_info_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
char pci_info[30];
return scnprintf(buf, PAGE_SIZE, "%s\n",
vha->hw->isp_ops->pci_info_str(vha, pci_info,
sizeof(pci_info)));
}
static ssize_t
qla2x00_link_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
int len = 0;
if (atomic_read(&vha->loop_state) == LOOP_DOWN ||
atomic_read(&vha->loop_state) == LOOP_DEAD ||
vha->device_flags & DFLG_NO_CABLE)
len = scnprintf(buf, PAGE_SIZE, "Link Down\n");
else if (atomic_read(&vha->loop_state) != LOOP_READY ||
qla2x00_chip_is_down(vha))
len = scnprintf(buf, PAGE_SIZE, "Unknown Link State\n");
else {
len = scnprintf(buf, PAGE_SIZE, "Link Up - ");
switch (ha->current_topology) {
case ISP_CFG_NL:
len += scnprintf(buf + len, PAGE_SIZE-len, "Loop\n");
break;
case ISP_CFG_FL:
len += scnprintf(buf + len, PAGE_SIZE-len, "FL_Port\n");
break;
case ISP_CFG_N:
len += scnprintf(buf + len, PAGE_SIZE-len,
"N_Port to N_Port\n");
break;
case ISP_CFG_F:
len += scnprintf(buf + len, PAGE_SIZE-len, "F_Port\n");
break;
default:
len += scnprintf(buf + len, PAGE_SIZE-len, "Loop\n");
break;
}
}
return len;
}
static ssize_t
qla2x00_zio_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int len = 0;
switch (vha->hw->zio_mode) {
case QLA_ZIO_MODE_6:
len += scnprintf(buf + len, PAGE_SIZE-len, "Mode 6\n");
break;
case QLA_ZIO_DISABLED:
len += scnprintf(buf + len, PAGE_SIZE-len, "Disabled\n");
break;
}
return len;
}
static ssize_t
qla2x00_zio_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
int val = 0;
uint16_t zio_mode;
if (!IS_ZIO_SUPPORTED(ha))
return -ENOTSUPP;
if (sscanf(buf, "%d", &val) != 1)
return -EINVAL;
if (val)
zio_mode = QLA_ZIO_MODE_6;
else
zio_mode = QLA_ZIO_DISABLED;
/* Update per-hba values and queue a reset. */
if (zio_mode != QLA_ZIO_DISABLED || ha->zio_mode != QLA_ZIO_DISABLED) {
ha->zio_mode = zio_mode;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
}
return strlen(buf);
}
static ssize_t
qla2x00_zio_timer_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
return scnprintf(buf, PAGE_SIZE, "%d us\n", vha->hw->zio_timer * 100);
}
static ssize_t
qla2x00_zio_timer_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int val = 0;
uint16_t zio_timer;
if (sscanf(buf, "%d", &val) != 1)
return -EINVAL;
if (val > 25500 || val < 100)
return -ERANGE;
zio_timer = (uint16_t)(val / 100);
vha->hw->zio_timer = zio_timer;
return strlen(buf);
}
static ssize_t
qla_zio_threshold_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
return scnprintf(buf, PAGE_SIZE, "%d exchanges\n",
vha->hw->last_zio_threshold);
}
static ssize_t
qla_zio_threshold_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int val = 0;
if (vha->hw->zio_mode != QLA_ZIO_MODE_6)
return -EINVAL;
if (sscanf(buf, "%d", &val) != 1)
return -EINVAL;
if (val < 0 || val > 256)
return -ERANGE;
atomic_set(&vha->hw->zio_threshold, val);
return strlen(buf);
}
static ssize_t
qla2x00_beacon_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int len = 0;
if (vha->hw->beacon_blink_led)
len += scnprintf(buf + len, PAGE_SIZE-len, "Enabled\n");
else
len += scnprintf(buf + len, PAGE_SIZE-len, "Disabled\n");
return len;
}
static ssize_t
qla2x00_beacon_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
int val = 0;
int rval;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return -EPERM;
if (sscanf(buf, "%d", &val) != 1)
return -EINVAL;
mutex_lock(&vha->hw->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&vha->hw->optrom_mutex);
ql_log(ql_log_warn, vha, 0x707a,
"Abort ISP active -- ignoring beacon request.\n");
return -EBUSY;
}
if (val)
rval = ha->isp_ops->beacon_on(vha);
else
rval = ha->isp_ops->beacon_off(vha);
if (rval != QLA_SUCCESS)
count = 0;
mutex_unlock(&vha->hw->optrom_mutex);
return count;
}
static ssize_t
qla2x00_beacon_config_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
uint16_t led[3] = { 0 };
if (!IS_QLA2031(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return -EPERM;
if (ql26xx_led_config(vha, 0, led))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%#04hx %#04hx %#04hx\n",
led[0], led[1], led[2]);
}
static ssize_t
qla2x00_beacon_config_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
uint16_t options = BIT_0;
uint16_t led[3] = { 0 };
uint16_t word[4];
int n;
if (!IS_QLA2031(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return -EPERM;
n = sscanf(buf, "%hx %hx %hx %hx", word+0, word+1, word+2, word+3);
if (n == 4) {
if (word[0] == 3) {
options |= BIT_3|BIT_2|BIT_1;
led[0] = word[1];
led[1] = word[2];
led[2] = word[3];
goto write;
}
return -EINVAL;
}
if (n == 2) {
/* check led index */
if (word[0] == 0) {
options |= BIT_2;
led[0] = word[1];
goto write;
}
if (word[0] == 1) {
options |= BIT_3;
led[1] = word[1];
goto write;
}
if (word[0] == 2) {
options |= BIT_1;
led[2] = word[1];
goto write;
}
return -EINVAL;
}
return -EINVAL;
write:
if (ql26xx_led_config(vha, options, led))
return -EFAULT;
return count;
}
static ssize_t
qla2x00_optrom_bios_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
return scnprintf(buf, PAGE_SIZE, "%d.%02d\n", ha->bios_revision[1],
ha->bios_revision[0]);
}
static ssize_t
qla2x00_optrom_efi_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
return scnprintf(buf, PAGE_SIZE, "%d.%02d\n", ha->efi_revision[1],
ha->efi_revision[0]);
}
static ssize_t
qla2x00_optrom_fcode_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
return scnprintf(buf, PAGE_SIZE, "%d.%02d\n", ha->fcode_revision[1],
ha->fcode_revision[0]);
}
static ssize_t
qla2x00_optrom_fw_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d %d\n",
ha->fw_revision[0], ha->fw_revision[1], ha->fw_revision[2],
ha->fw_revision[3]);
}
static ssize_t
qla2x00_optrom_gold_fw_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d (%d)\n",
ha->gold_fw_version[0], ha->gold_fw_version[1],
ha->gold_fw_version[2], ha->gold_fw_version[3]);
}
static ssize_t
qla2x00_total_isp_aborts_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
return scnprintf(buf, PAGE_SIZE, "%d\n",
vha->qla_stats.total_isp_aborts);
}
static ssize_t
qla24xx_84xx_fw_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int rval = QLA_SUCCESS;
uint16_t status[2] = { 0 };
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA84XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
if (!ha->cs84xx->op_fw_version) {
rval = qla84xx_verify_chip(vha, status);
if (!rval && !status[0])
return scnprintf(buf, PAGE_SIZE, "%u\n",
(uint32_t)ha->cs84xx->op_fw_version);
}
return scnprintf(buf, PAGE_SIZE, "\n");
}
static ssize_t
qla2x00_serdes_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d\n",
ha->serdes_version[0], ha->serdes_version[1],
ha->serdes_version[2]);
}
static ssize_t
qla2x00_mpi_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA81XX(ha) && !IS_QLA8031(ha) && !IS_QLA8044(ha) &&
!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d (%x)\n",
ha->mpi_version[0], ha->mpi_version[1], ha->mpi_version[2],
ha->mpi_capabilities);
}
static ssize_t
qla2x00_phy_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA81XX(ha) && !IS_QLA8031(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d\n",
ha->phy_version[0], ha->phy_version[1], ha->phy_version[2]);
}
static ssize_t
qla2x00_flash_block_size_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
return scnprintf(buf, PAGE_SIZE, "0x%x\n", ha->fdt_block_size);
}
static ssize_t
qla2x00_vlan_id_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
if (!IS_CNA_CAPABLE(vha->hw))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%d\n", vha->fcoe_vlan_id);
}
static ssize_t
qla2x00_vn_port_mac_address_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
if (!IS_CNA_CAPABLE(vha->hw))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%pMR\n", vha->fcoe_vn_port_mac);
}
static ssize_t
qla2x00_fabric_param_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
return scnprintf(buf, PAGE_SIZE, "%d\n", vha->hw->switch_cap);
}
static ssize_t
qla2x00_thermal_temp_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
uint16_t temp = 0;
int rc;
mutex_lock(&vha->hw->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&vha->hw->optrom_mutex);
ql_log(ql_log_warn, vha, 0x70dc, "ISP reset active.\n");
goto done;
}
if (vha->hw->flags.eeh_busy) {
mutex_unlock(&vha->hw->optrom_mutex);
ql_log(ql_log_warn, vha, 0x70dd, "PCI EEH busy.\n");
goto done;
}
rc = qla2x00_get_thermal_temp(vha, &temp);
mutex_unlock(&vha->hw->optrom_mutex);
if (rc == QLA_SUCCESS)
return scnprintf(buf, PAGE_SIZE, "%d\n", temp);
done:
return scnprintf(buf, PAGE_SIZE, "\n");
}
static ssize_t
qla2x00_fw_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int rval = QLA_FUNCTION_FAILED;
uint16_t state[6];
uint32_t pstate;
if (IS_QLAFX00(vha->hw)) {
pstate = qlafx00_fw_state_show(dev, attr, buf);
return scnprintf(buf, PAGE_SIZE, "0x%x\n", pstate);
}
mutex_lock(&vha->hw->optrom_mutex);
if (qla2x00_chip_is_down(vha)) {
mutex_unlock(&vha->hw->optrom_mutex);
ql_log(ql_log_warn, vha, 0x707c,
"ISP reset active.\n");
goto out;
} else if (vha->hw->flags.eeh_busy) {
mutex_unlock(&vha->hw->optrom_mutex);
goto out;
}
rval = qla2x00_get_firmware_state(vha, state);
mutex_unlock(&vha->hw->optrom_mutex);
out:
if (rval != QLA_SUCCESS) {
memset(state, -1, sizeof(state));
rval = qla2x00_get_firmware_state(vha, state);
}
return scnprintf(buf, PAGE_SIZE, "0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
state[0], state[1], state[2], state[3], state[4], state[5]);
}
static ssize_t
qla2x00_diag_requests_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
if (!IS_BIDI_CAPABLE(vha->hw))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%llu\n", vha->bidi_stats.io_count);
}
static ssize_t
qla2x00_diag_megabytes_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
if (!IS_BIDI_CAPABLE(vha->hw))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%llu\n",
vha->bidi_stats.transfer_bytes >> 20);
}
static ssize_t
qla2x00_fw_dump_size_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
uint32_t size;
if (!ha->fw_dumped)
size = 0;
else if (IS_P3P_TYPE(ha))
size = ha->md_template_size + ha->md_dump_size;
else
size = ha->fw_dump_len;
return scnprintf(buf, PAGE_SIZE, "%d\n", size);
}
static ssize_t
qla2x00_allow_cna_fw_dump_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
if (!IS_P3P_TYPE(vha->hw))
return scnprintf(buf, PAGE_SIZE, "\n");
else
return scnprintf(buf, PAGE_SIZE, "%s\n",
vha->hw->allow_cna_fw_dump ? "true" : "false");
}
static ssize_t
qla2x00_allow_cna_fw_dump_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int val = 0;
if (!IS_P3P_TYPE(vha->hw))
return -EINVAL;
if (sscanf(buf, "%d", &val) != 1)
return -EINVAL;
vha->hw->allow_cna_fw_dump = val != 0;
return strlen(buf);
}
static ssize_t
qla2x00_pep_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%d.%02d.%02d\n",
ha->pep_version[0], ha->pep_version[1], ha->pep_version[2]);
}
static ssize_t
qla2x00_min_supported_speed_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%s\n",
ha->min_supported_speed == 6 ? "64Gps" :
ha->min_supported_speed == 5 ? "32Gps" :
ha->min_supported_speed == 4 ? "16Gps" :
ha->min_supported_speed == 3 ? "8Gps" :
ha->min_supported_speed == 2 ? "4Gps" :
ha->min_supported_speed != 0 ? "unknown" : "");
}
static ssize_t
qla2x00_max_supported_speed_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%s\n",
ha->max_supported_speed == 2 ? "64Gps" :
ha->max_supported_speed == 1 ? "32Gps" :
ha->max_supported_speed == 0 ? "16Gps" : "unknown");
}
static ssize_t
qla2x00_port_speed_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(dev));
ulong type, speed;
int oldspeed, rval;
int mode = QLA_SET_DATA_RATE_LR;
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha)) {
ql_log(ql_log_warn, vha, 0x70d8,
"Speed setting not supported \n");
return -EINVAL;
}
rval = kstrtol(buf, 10, &type);
if (rval)
return rval;
speed = type;
if (type == 40 || type == 80 || type == 160 ||
type == 320) {
ql_dbg(ql_dbg_user, vha, 0x70d9,
"Setting will be affected after a loss of sync\n");
type = type/10;
mode = QLA_SET_DATA_RATE_NOLR;
}
oldspeed = ha->set_data_rate;
switch (type) {
case 0:
ha->set_data_rate = PORT_SPEED_AUTO;
break;
case 4:
ha->set_data_rate = PORT_SPEED_4GB;
break;
case 8:
ha->set_data_rate = PORT_SPEED_8GB;
break;
case 16:
ha->set_data_rate = PORT_SPEED_16GB;
break;
case 32:
ha->set_data_rate = PORT_SPEED_32GB;
break;
default:
ql_log(ql_log_warn, vha, 0x1199,
"Unrecognized speed setting:%lx. Setting Autoneg\n",
speed);
ha->set_data_rate = PORT_SPEED_AUTO;
}
if (qla2x00_chip_is_down(vha) || (oldspeed == ha->set_data_rate))
return -EINVAL;
ql_log(ql_log_info, vha, 0x70da,
"Setting speed to %lx Gbps \n", type);
rval = qla2x00_set_data_rate(vha, mode);
if (rval != QLA_SUCCESS)
return -EIO;
return strlen(buf);
}
static const struct {
u16 rate;
char *str;
} port_speed_str[] = {
{ PORT_SPEED_4GB, "4" },
{ PORT_SPEED_8GB, "8" },
{ PORT_SPEED_16GB, "16" },
{ PORT_SPEED_32GB, "32" },
{ PORT_SPEED_64GB, "64" },
{ PORT_SPEED_10GB, "10" },
};
static ssize_t
qla2x00_port_speed_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *vha = shost_priv(dev_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
ssize_t rval;
u16 i;
char *speed = "Unknown";
rval = qla2x00_get_data_rate(vha);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x70db,
"Unable to get port speed rval:%zd\n", rval);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(port_speed_str); i++) {
if (port_speed_str[i].rate != ha->link_data_rate)
continue;
speed = port_speed_str[i].str;
break;
}
return scnprintf(buf, PAGE_SIZE, "%s\n", speed);
}
static ssize_t
qla2x00_mpi_pause_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int rval = 0;
if (sscanf(buf, "%d", &rval) != 1)
return -EINVAL;
ql_log(ql_log_warn, vha, 0x7089, "Pausing MPI...\n");
rval = qla83xx_wr_reg(vha, 0x002012d4, 0x30000001);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x708a, "Unable to pause MPI.\n");
count = 0;
}
return count;
}
static DEVICE_ATTR(mpi_pause, S_IWUSR, NULL, qla2x00_mpi_pause_store);
/* ----- */
static ssize_t
qlini_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int len = 0;
len += scnprintf(buf + len, PAGE_SIZE-len,
"Supported options: enabled | disabled | dual | exclusive\n");
/* --- */
len += scnprintf(buf + len, PAGE_SIZE-len, "Current selection: ");
switch (vha->qlini_mode) {
case QLA2XXX_INI_MODE_EXCLUSIVE:
len += scnprintf(buf + len, PAGE_SIZE-len,
QLA2XXX_INI_MODE_STR_EXCLUSIVE);
break;
case QLA2XXX_INI_MODE_DISABLED:
len += scnprintf(buf + len, PAGE_SIZE-len,
QLA2XXX_INI_MODE_STR_DISABLED);
break;
case QLA2XXX_INI_MODE_ENABLED:
len += scnprintf(buf + len, PAGE_SIZE-len,
QLA2XXX_INI_MODE_STR_ENABLED);
break;
case QLA2XXX_INI_MODE_DUAL:
len += scnprintf(buf + len, PAGE_SIZE-len,
QLA2XXX_INI_MODE_STR_DUAL);
break;
}
len += scnprintf(buf + len, PAGE_SIZE-len, "\n");
return len;
}
static char *mode_to_str[] = {
"exclusive",
"disabled",
"enabled",
"dual",
};
#define NEED_EXCH_OFFLOAD(_exchg) ((_exchg) > FW_DEF_EXCHANGES_CNT)
static void qla_set_ini_mode(scsi_qla_host_t *vha, int op)
{
enum {
NO_ACTION,
MODE_CHANGE_ACCEPT,
MODE_CHANGE_NO_ACTION,
TARGET_STILL_ACTIVE,
};
int action = NO_ACTION;
int set_mode = 0;
u8 eo_toggle = 0; /* exchange offload flipped */
switch (vha->qlini_mode) {
case QLA2XXX_INI_MODE_DISABLED:
switch (op) {
case QLA2XXX_INI_MODE_DISABLED:
if (qla_tgt_mode_enabled(vha)) {
if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld) !=
vha->hw->flags.exchoffld_enabled)
eo_toggle = 1;
if (((vha->ql2xexchoffld !=
vha->u_ql2xexchoffld) &&
NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld)) ||
eo_toggle) {
/*
* The number of exchange to be offload
* was tweaked or offload option was
* flipped
*/
action = MODE_CHANGE_ACCEPT;
} else {
action = MODE_CHANGE_NO_ACTION;
}
} else {
action = MODE_CHANGE_NO_ACTION;
}
break;
case QLA2XXX_INI_MODE_EXCLUSIVE:
if (qla_tgt_mode_enabled(vha)) {
if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld) !=
vha->hw->flags.exchoffld_enabled)
eo_toggle = 1;
if (((vha->ql2xexchoffld !=
vha->u_ql2xexchoffld) &&
NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld)) ||
eo_toggle) {
/*
* The number of exchange to be offload
* was tweaked or offload option was
* flipped
*/
action = MODE_CHANGE_ACCEPT;
} else {
action = MODE_CHANGE_NO_ACTION;
}
} else {
action = MODE_CHANGE_ACCEPT;
}
break;
case QLA2XXX_INI_MODE_DUAL:
action = MODE_CHANGE_ACCEPT;
/* active_mode is target only, reset it to dual */
if (qla_tgt_mode_enabled(vha)) {
set_mode = 1;
action = MODE_CHANGE_ACCEPT;
} else {
action = MODE_CHANGE_NO_ACTION;
}
break;
case QLA2XXX_INI_MODE_ENABLED:
if (qla_tgt_mode_enabled(vha))
action = TARGET_STILL_ACTIVE;
else {
action = MODE_CHANGE_ACCEPT;
set_mode = 1;
}
break;
}
break;
case QLA2XXX_INI_MODE_EXCLUSIVE:
switch (op) {
case QLA2XXX_INI_MODE_EXCLUSIVE:
if (qla_tgt_mode_enabled(vha)) {
if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld) !=
vha->hw->flags.exchoffld_enabled)
eo_toggle = 1;
if (((vha->ql2xexchoffld !=
vha->u_ql2xexchoffld) &&
NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld)) ||
eo_toggle)
/*
* The number of exchange to be offload
* was tweaked or offload option was
* flipped
*/
action = MODE_CHANGE_ACCEPT;
else
action = NO_ACTION;
} else
action = NO_ACTION;
break;
case QLA2XXX_INI_MODE_DISABLED:
if (qla_tgt_mode_enabled(vha)) {
if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld) !=
vha->hw->flags.exchoffld_enabled)
eo_toggle = 1;
if (((vha->ql2xexchoffld !=
vha->u_ql2xexchoffld) &&
NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld)) ||
eo_toggle)
action = MODE_CHANGE_ACCEPT;
else
action = MODE_CHANGE_NO_ACTION;
} else
action = MODE_CHANGE_NO_ACTION;
break;
case QLA2XXX_INI_MODE_DUAL: /* exclusive -> dual */
if (qla_tgt_mode_enabled(vha)) {
action = MODE_CHANGE_ACCEPT;
set_mode = 1;
} else
action = MODE_CHANGE_ACCEPT;
break;
case QLA2XXX_INI_MODE_ENABLED:
if (qla_tgt_mode_enabled(vha))
action = TARGET_STILL_ACTIVE;
else {
if (vha->hw->flags.fw_started)
action = MODE_CHANGE_NO_ACTION;
else
action = MODE_CHANGE_ACCEPT;
}
break;
}
break;
case QLA2XXX_INI_MODE_ENABLED:
switch (op) {
case QLA2XXX_INI_MODE_ENABLED:
if (NEED_EXCH_OFFLOAD(vha->u_ql2xiniexchg) !=
vha->hw->flags.exchoffld_enabled)
eo_toggle = 1;
if (((vha->ql2xiniexchg != vha->u_ql2xiniexchg) &&
NEED_EXCH_OFFLOAD(vha->u_ql2xiniexchg)) ||
eo_toggle)
action = MODE_CHANGE_ACCEPT;
else
action = NO_ACTION;
break;
case QLA2XXX_INI_MODE_DUAL:
case QLA2XXX_INI_MODE_DISABLED:
action = MODE_CHANGE_ACCEPT;
break;
default:
action = MODE_CHANGE_NO_ACTION;
break;
}
break;
case QLA2XXX_INI_MODE_DUAL:
switch (op) {
case QLA2XXX_INI_MODE_DUAL:
if (qla_tgt_mode_enabled(vha) ||
qla_dual_mode_enabled(vha)) {
if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld +
vha->u_ql2xiniexchg) !=
vha->hw->flags.exchoffld_enabled)
eo_toggle = 1;
if ((((vha->ql2xexchoffld +
vha->ql2xiniexchg) !=
(vha->u_ql2xiniexchg +
vha->u_ql2xexchoffld)) &&
NEED_EXCH_OFFLOAD(vha->u_ql2xiniexchg +
vha->u_ql2xexchoffld)) || eo_toggle)
action = MODE_CHANGE_ACCEPT;
else
action = NO_ACTION;
} else {
if (NEED_EXCH_OFFLOAD(vha->u_ql2xexchoffld +
vha->u_ql2xiniexchg) !=
vha->hw->flags.exchoffld_enabled)
eo_toggle = 1;
if ((((vha->ql2xexchoffld + vha->ql2xiniexchg)
!= (vha->u_ql2xiniexchg +
vha->u_ql2xexchoffld)) &&
NEED_EXCH_OFFLOAD(vha->u_ql2xiniexchg +
vha->u_ql2xexchoffld)) || eo_toggle)
action = MODE_CHANGE_NO_ACTION;
else
action = NO_ACTION;
}
break;
case QLA2XXX_INI_MODE_DISABLED:
if (qla_tgt_mode_enabled(vha) ||
qla_dual_mode_enabled(vha)) {
/* turning off initiator mode */
set_mode = 1;
action = MODE_CHANGE_ACCEPT;
} else {
action = MODE_CHANGE_NO_ACTION;
}
break;
case QLA2XXX_INI_MODE_EXCLUSIVE:
if (qla_tgt_mode_enabled(vha) ||
qla_dual_mode_enabled(vha)) {
set_mode = 1;
action = MODE_CHANGE_ACCEPT;
} else {
action = MODE_CHANGE_ACCEPT;
}
break;
case QLA2XXX_INI_MODE_ENABLED:
if (qla_tgt_mode_enabled(vha) ||
qla_dual_mode_enabled(vha)) {
action = TARGET_STILL_ACTIVE;
} else {
action = MODE_CHANGE_ACCEPT;
}
}
break;
}
switch (action) {
case MODE_CHANGE_ACCEPT:
ql_log(ql_log_warn, vha, 0xffff,
"Mode change accepted. From %s to %s, Tgt exchg %d|%d. ini exchg %d|%d\n",
mode_to_str[vha->qlini_mode], mode_to_str[op],
vha->ql2xexchoffld, vha->u_ql2xexchoffld,
vha->ql2xiniexchg, vha->u_ql2xiniexchg);
vha->qlini_mode = op;
vha->ql2xexchoffld = vha->u_ql2xexchoffld;
vha->ql2xiniexchg = vha->u_ql2xiniexchg;
if (set_mode)
qlt_set_mode(vha);
vha->flags.online = 1;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
case MODE_CHANGE_NO_ACTION:
ql_log(ql_log_warn, vha, 0xffff,
"Mode is set. No action taken. From %s to %s, Tgt exchg %d|%d. ini exchg %d|%d\n",
mode_to_str[vha->qlini_mode], mode_to_str[op],
vha->ql2xexchoffld, vha->u_ql2xexchoffld,
vha->ql2xiniexchg, vha->u_ql2xiniexchg);
vha->qlini_mode = op;
vha->ql2xexchoffld = vha->u_ql2xexchoffld;
vha->ql2xiniexchg = vha->u_ql2xiniexchg;
break;
case TARGET_STILL_ACTIVE:
ql_log(ql_log_warn, vha, 0xffff,
"Target Mode is active. Unable to change Mode.\n");
break;
case NO_ACTION:
default:
ql_log(ql_log_warn, vha, 0xffff,
"Mode unchange. No action taken. %d|%d pct %d|%d.\n",
vha->qlini_mode, op,
vha->ql2xexchoffld, vha->u_ql2xexchoffld);
break;
}
}
static ssize_t
qlini_mode_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int ini;
if (!buf)
return -EINVAL;
if (strncasecmp(QLA2XXX_INI_MODE_STR_EXCLUSIVE, buf,
strlen(QLA2XXX_INI_MODE_STR_EXCLUSIVE)) == 0)
ini = QLA2XXX_INI_MODE_EXCLUSIVE;
else if (strncasecmp(QLA2XXX_INI_MODE_STR_DISABLED, buf,
strlen(QLA2XXX_INI_MODE_STR_DISABLED)) == 0)
ini = QLA2XXX_INI_MODE_DISABLED;
else if (strncasecmp(QLA2XXX_INI_MODE_STR_ENABLED, buf,
strlen(QLA2XXX_INI_MODE_STR_ENABLED)) == 0)
ini = QLA2XXX_INI_MODE_ENABLED;
else if (strncasecmp(QLA2XXX_INI_MODE_STR_DUAL, buf,
strlen(QLA2XXX_INI_MODE_STR_DUAL)) == 0)
ini = QLA2XXX_INI_MODE_DUAL;
else
return -EINVAL;
qla_set_ini_mode(vha, ini);
return strlen(buf);
}
static ssize_t
ql2xexchoffld_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int len = 0;
len += scnprintf(buf + len, PAGE_SIZE-len,
"target exchange: new %d : current: %d\n\n",
vha->u_ql2xexchoffld, vha->ql2xexchoffld);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Please (re)set operating mode via \"/sys/class/scsi_host/host%ld/qlini_mode\" to load new setting.\n",
vha->host_no);
return len;
}
static ssize_t
ql2xexchoffld_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int val = 0;
if (sscanf(buf, "%d", &val) != 1)
return -EINVAL;
if (val > FW_MAX_EXCHANGES_CNT)
val = FW_MAX_EXCHANGES_CNT;
else if (val < 0)
val = 0;
vha->u_ql2xexchoffld = val;
return strlen(buf);
}
static ssize_t
ql2xiniexchg_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int len = 0;
len += scnprintf(buf + len, PAGE_SIZE-len,
"target exchange: new %d : current: %d\n\n",
vha->u_ql2xiniexchg, vha->ql2xiniexchg);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Please (re)set operating mode via \"/sys/class/scsi_host/host%ld/qlini_mode\" to load new setting.\n",
vha->host_no);
return len;
}
static ssize_t
ql2xiniexchg_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
int val = 0;
if (sscanf(buf, "%d", &val) != 1)
return -EINVAL;
if (val > FW_MAX_EXCHANGES_CNT)
val = FW_MAX_EXCHANGES_CNT;
else if (val < 0)
val = 0;
vha->u_ql2xiniexchg = val;
return strlen(buf);
}
static ssize_t
qla2x00_dif_bundle_statistics_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
return scnprintf(buf, PAGE_SIZE,
"cross=%llu read=%llu write=%llu kalloc=%llu dma_alloc=%llu unusable=%u\n",
ha->dif_bundle_crossed_pages, ha->dif_bundle_reads,
ha->dif_bundle_writes, ha->dif_bundle_kallocs,
ha->dif_bundle_dma_allocs, ha->pool.unusable.count);
}
static ssize_t
qla2x00_fw_attr_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
struct qla_hw_data *ha = vha->hw;
if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%llx\n",
(uint64_t)ha->fw_attributes_ext[1] << 48 |
(uint64_t)ha->fw_attributes_ext[0] << 32 |
(uint64_t)ha->fw_attributes_h << 16 |
(uint64_t)ha->fw_attributes);
}
static ssize_t
qla2x00_port_no_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
return scnprintf(buf, PAGE_SIZE, "%u\n", vha->hw->port_no);
}
static ssize_t
qla2x00_dport_diagnostics_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
if (!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw) &&
!IS_QLA28XX(vha->hw))
return scnprintf(buf, PAGE_SIZE, "\n");
if (!*vha->dport_data)
return scnprintf(buf, PAGE_SIZE, "\n");
return scnprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n",
vha->dport_data[0], vha->dport_data[1],
vha->dport_data[2], vha->dport_data[3]);
}
static DEVICE_ATTR(dport_diagnostics, 0444,
qla2x00_dport_diagnostics_show, NULL);
static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_driver_version_show, NULL);
static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
static DEVICE_ATTR(isp_name, S_IRUGO, qla2x00_isp_name_show, NULL);
static DEVICE_ATTR(isp_id, S_IRUGO, qla2x00_isp_id_show, NULL);
static DEVICE_ATTR(model_name, S_IRUGO, qla2x00_model_name_show, NULL);
static DEVICE_ATTR(model_desc, S_IRUGO, qla2x00_model_desc_show, NULL);
static DEVICE_ATTR(pci_info, S_IRUGO, qla2x00_pci_info_show, NULL);
static DEVICE_ATTR(link_state, S_IRUGO, qla2x00_link_state_show, NULL);
static DEVICE_ATTR(zio, S_IRUGO | S_IWUSR, qla2x00_zio_show, qla2x00_zio_store);
static DEVICE_ATTR(zio_timer, S_IRUGO | S_IWUSR, qla2x00_zio_timer_show,
qla2x00_zio_timer_store);
static DEVICE_ATTR(beacon, S_IRUGO | S_IWUSR, qla2x00_beacon_show,
qla2x00_beacon_store);
static DEVICE_ATTR(beacon_config, 0644, qla2x00_beacon_config_show,
qla2x00_beacon_config_store);
static DEVICE_ATTR(optrom_bios_version, S_IRUGO,
qla2x00_optrom_bios_version_show, NULL);
static DEVICE_ATTR(optrom_efi_version, S_IRUGO,
qla2x00_optrom_efi_version_show, NULL);
static DEVICE_ATTR(optrom_fcode_version, S_IRUGO,
qla2x00_optrom_fcode_version_show, NULL);
static DEVICE_ATTR(optrom_fw_version, S_IRUGO, qla2x00_optrom_fw_version_show,
NULL);
static DEVICE_ATTR(optrom_gold_fw_version, S_IRUGO,
qla2x00_optrom_gold_fw_version_show, NULL);
static DEVICE_ATTR(84xx_fw_version, S_IRUGO, qla24xx_84xx_fw_version_show,
NULL);
static DEVICE_ATTR(total_isp_aborts, S_IRUGO, qla2x00_total_isp_aborts_show,
NULL);
static DEVICE_ATTR(serdes_version, 0444, qla2x00_serdes_version_show, NULL);
static DEVICE_ATTR(mpi_version, S_IRUGO, qla2x00_mpi_version_show, NULL);
static DEVICE_ATTR(phy_version, S_IRUGO, qla2x00_phy_version_show, NULL);
static DEVICE_ATTR(flash_block_size, S_IRUGO, qla2x00_flash_block_size_show,
NULL);
static DEVICE_ATTR(vlan_id, S_IRUGO, qla2x00_vlan_id_show, NULL);
static DEVICE_ATTR(vn_port_mac_address, S_IRUGO,
qla2x00_vn_port_mac_address_show, NULL);
static DEVICE_ATTR(fabric_param, S_IRUGO, qla2x00_fabric_param_show, NULL);
static DEVICE_ATTR(fw_state, S_IRUGO, qla2x00_fw_state_show, NULL);
static DEVICE_ATTR(thermal_temp, S_IRUGO, qla2x00_thermal_temp_show, NULL);
static DEVICE_ATTR(diag_requests, S_IRUGO, qla2x00_diag_requests_show, NULL);
static DEVICE_ATTR(diag_megabytes, S_IRUGO, qla2x00_diag_megabytes_show, NULL);
static DEVICE_ATTR(fw_dump_size, S_IRUGO, qla2x00_fw_dump_size_show, NULL);
static DEVICE_ATTR(allow_cna_fw_dump, S_IRUGO | S_IWUSR,
qla2x00_allow_cna_fw_dump_show,
qla2x00_allow_cna_fw_dump_store);
static DEVICE_ATTR(pep_version, S_IRUGO, qla2x00_pep_version_show, NULL);
static DEVICE_ATTR(min_supported_speed, 0444,
qla2x00_min_supported_speed_show, NULL);
static DEVICE_ATTR(max_supported_speed, 0444,
qla2x00_max_supported_speed_show, NULL);
static DEVICE_ATTR(zio_threshold, 0644,
qla_zio_threshold_show,
qla_zio_threshold_store);
static DEVICE_ATTR_RW(qlini_mode);
static DEVICE_ATTR_RW(ql2xexchoffld);
static DEVICE_ATTR_RW(ql2xiniexchg);
static DEVICE_ATTR(dif_bundle_statistics, 0444,
qla2x00_dif_bundle_statistics_show, NULL);
static DEVICE_ATTR(port_speed, 0644, qla2x00_port_speed_show,
qla2x00_port_speed_store);
static DEVICE_ATTR(port_no, 0444, qla2x00_port_no_show, NULL);
static DEVICE_ATTR(fw_attr, 0444, qla2x00_fw_attr_show, NULL);
static struct attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version.attr,
&dev_attr_fw_version.attr,
&dev_attr_serial_num.attr,
&dev_attr_isp_name.attr,
&dev_attr_isp_id.attr,
&dev_attr_model_name.attr,
&dev_attr_model_desc.attr,
&dev_attr_pci_info.attr,
&dev_attr_link_state.attr,
&dev_attr_zio.attr,
&dev_attr_zio_timer.attr,
&dev_attr_beacon.attr,
&dev_attr_beacon_config.attr,
&dev_attr_optrom_bios_version.attr,
&dev_attr_optrom_efi_version.attr,
&dev_attr_optrom_fcode_version.attr,
&dev_attr_optrom_fw_version.attr,
&dev_attr_84xx_fw_version.attr,
&dev_attr_total_isp_aborts.attr,
&dev_attr_serdes_version.attr,
&dev_attr_mpi_version.attr,
&dev_attr_phy_version.attr,
&dev_attr_flash_block_size.attr,
&dev_attr_vlan_id.attr,
&dev_attr_vn_port_mac_address.attr,
&dev_attr_fabric_param.attr,
&dev_attr_fw_state.attr,
&dev_attr_optrom_gold_fw_version.attr,
&dev_attr_thermal_temp.attr,
&dev_attr_diag_requests.attr,
&dev_attr_diag_megabytes.attr,
&dev_attr_fw_dump_size.attr,
&dev_attr_allow_cna_fw_dump.attr,
&dev_attr_pep_version.attr,
&dev_attr_min_supported_speed.attr,
&dev_attr_max_supported_speed.attr,
&dev_attr_zio_threshold.attr,
&dev_attr_dif_bundle_statistics.attr,
&dev_attr_port_speed.attr,
&dev_attr_port_no.attr,
&dev_attr_fw_attr.attr,
&dev_attr_dport_diagnostics.attr,
&dev_attr_mpi_pause.attr,
&dev_attr_qlini_mode.attr,
&dev_attr_ql2xiniexchg.attr,
&dev_attr_ql2xexchoffld.attr,
NULL,
};
static umode_t qla_host_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int i)
{
if (ql2x_ini_mode != QLA2XXX_INI_MODE_DUAL &&
(attr == &dev_attr_qlini_mode.attr ||
attr == &dev_attr_ql2xiniexchg.attr ||
attr == &dev_attr_ql2xexchoffld.attr))
return 0;
return attr->mode;
}
static const struct attribute_group qla2x00_host_attr_group = {
.is_visible = qla_host_attr_is_visible,
.attrs = qla2x00_host_attrs
};
const struct attribute_group *qla2x00_host_groups[] = {
&qla2x00_host_attr_group,
NULL
};
/* Host attributes. */
static void
qla2x00_get_host_port_id(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
fc_host_port_id(shost) = vha->d_id.b.domain << 16 |
vha->d_id.b.area << 8 | vha->d_id.b.al_pa;
}
static void
qla2x00_get_host_speed(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
u32 speed;
if (IS_QLAFX00(vha->hw)) {
qlafx00_get_host_speed(shost);
return;
}
switch (vha->hw->link_data_rate) {
case PORT_SPEED_1GB:
speed = FC_PORTSPEED_1GBIT;
break;
case PORT_SPEED_2GB:
speed = FC_PORTSPEED_2GBIT;
break;
case PORT_SPEED_4GB:
speed = FC_PORTSPEED_4GBIT;
break;
case PORT_SPEED_8GB:
speed = FC_PORTSPEED_8GBIT;
break;
case PORT_SPEED_10GB:
speed = FC_PORTSPEED_10GBIT;
break;
case PORT_SPEED_16GB:
speed = FC_PORTSPEED_16GBIT;
break;
case PORT_SPEED_32GB:
speed = FC_PORTSPEED_32GBIT;
break;
case PORT_SPEED_64GB:
speed = FC_PORTSPEED_64GBIT;
break;
default:
speed = FC_PORTSPEED_UNKNOWN;
break;
}
fc_host_speed(shost) = speed;
}
static void
qla2x00_get_host_port_type(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
uint32_t port_type;
if (vha->vp_idx) {
fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
return;
}
switch (vha->hw->current_topology) {
case ISP_CFG_NL:
port_type = FC_PORTTYPE_LPORT;
break;
case ISP_CFG_FL:
port_type = FC_PORTTYPE_NLPORT;
break;
case ISP_CFG_N:
port_type = FC_PORTTYPE_PTP;
break;
case ISP_CFG_F:
port_type = FC_PORTTYPE_NPORT;
break;
default:
port_type = FC_PORTTYPE_UNKNOWN;
break;
}
fc_host_port_type(shost) = port_type;
}
static void
qla2x00_get_starget_node_name(struct scsi_target *starget)
{
struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport;
u64 node_name = 0;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->rport &&
starget->id == fcport->rport->scsi_target_id) {
node_name = wwn_to_u64(fcport->node_name);
break;
}
}
fc_starget_node_name(starget) = node_name;
}
static void
qla2x00_get_starget_port_name(struct scsi_target *starget)
{
struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport;
u64 port_name = 0;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->rport &&
starget->id == fcport->rport->scsi_target_id) {
port_name = wwn_to_u64(fcport->port_name);
break;
}
}
fc_starget_port_name(starget) = port_name;
}
static void
qla2x00_get_starget_port_id(struct scsi_target *starget)
{
struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport;
uint32_t port_id = ~0U;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->rport &&
starget->id == fcport->rport->scsi_target_id) {
port_id = fcport->d_id.b.domain << 16 |
fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
break;
}
}
fc_starget_port_id(starget) = port_id;
}
static inline void
qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
rport->dev_loss_tmo = timeout ? timeout : 1;
if (IS_ENABLED(CONFIG_NVME_FC) && fcport && fcport->nvme_remote_port)
nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port,
rport->dev_loss_tmo);
}
static void
qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport)
{
struct Scsi_Host *host = rport_to_shost(rport);
fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
unsigned long flags;
if (!fcport)
return;
ql_dbg(ql_dbg_async, fcport->vha, 0x5101,
DBG_FCPORT_PRFMT(fcport, "dev_loss_tmo expiry, rport_state=%d",
rport->port_state));
/*
* Now that the rport has been deleted, set the fcport state to
* FCS_DEVICE_DEAD, if the fcport is still lost.
*/
if (fcport->scan_state != QLA_FCPORT_FOUND)
qla2x00_set_fcport_state(fcport, FCS_DEVICE_DEAD);
/*
* Transport has effectively 'deleted' the rport, clear
* all local references.
*/
spin_lock_irqsave(host->host_lock, flags);
/* Confirm port has not reappeared before clearing pointers. */
if (rport->port_state != FC_PORTSTATE_ONLINE) {
fcport->rport = NULL;
*((fc_port_t **)rport->dd_data) = NULL;
}
spin_unlock_irqrestore(host->host_lock, flags);
if (test_bit(ABORT_ISP_ACTIVE, &fcport->vha->dpc_flags))
return;
if (unlikely(pci_channel_offline(fcport->vha->hw->pdev))) {
qla2x00_abort_all_cmds(fcport->vha, DID_NO_CONNECT << 16);
return;
}
}
static void
qla2x00_terminate_rport_io(struct fc_rport *rport)
{
fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
scsi_qla_host_t *vha;
if (!fcport)
return;
if (test_bit(UNLOADING, &fcport->vha->dpc_flags))
return;
if (test_bit(ABORT_ISP_ACTIVE, &fcport->vha->dpc_flags))
return;
vha = fcport->vha;
if (unlikely(pci_channel_offline(fcport->vha->hw->pdev))) {
qla2x00_abort_all_cmds(fcport->vha, DID_NO_CONNECT << 16);
qla2x00_eh_wait_for_pending_commands(fcport->vha, fcport->d_id.b24,
0, WAIT_TARGET);
return;
}
/*
* At this point all fcport's software-states are cleared. Perform any
* final cleanup of firmware resources (PCBs and XCBs).
*
* Attempt to cleanup only lost devices.
*/
if (fcport->loop_id != FC_NO_LOOP_ID) {
if (IS_FWI2_CAPABLE(fcport->vha->hw) &&
fcport->scan_state != QLA_FCPORT_FOUND) {
if (fcport->loop_id != FC_NO_LOOP_ID)
fcport->logout_on_delete = 1;
if (!EDIF_NEGOTIATION_PENDING(fcport)) {
ql_dbg(ql_dbg_disc, fcport->vha, 0x911e,
"%s %d schedule session deletion\n", __func__,
__LINE__);
qlt_schedule_sess_for_deletion(fcport);
}
} else if (!IS_FWI2_CAPABLE(fcport->vha->hw)) {
qla2x00_port_logout(fcport->vha, fcport);
}
}
/* check for any straggling io left behind */
if (qla2x00_eh_wait_for_pending_commands(fcport->vha, fcport->d_id.b24, 0, WAIT_TARGET)) {
ql_log(ql_log_warn, vha, 0x300b,
"IO not return. Resetting. \n");
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_chip_reset(vha);
}
}
static int
qla2x00_issue_lip(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
if (IS_QLAFX00(vha->hw))
return 0;
if (vha->hw->flags.port_isolated)
return 0;
qla2x00_loop_reset(vha);
return 0;
}
static struct fc_host_statistics *
qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
int rval;
struct link_statistics *stats;
dma_addr_t stats_dma;
struct fc_host_statistics *p = &vha->fc_host_stat;
struct qla_qpair *qpair;
int i;
u64 ib = 0, ob = 0, ir = 0, or = 0;
memset(p, -1, sizeof(*p));
if (IS_QLAFX00(vha->hw))
goto done;
if (test_bit(UNLOADING, &vha->dpc_flags))
goto done;
if (unlikely(pci_channel_offline(ha->pdev)))
goto done;
if (qla2x00_chip_is_down(vha))
goto done;
stats = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stats), &stats_dma,
GFP_KERNEL);
if (!stats) {
ql_log(ql_log_warn, vha, 0x707d,
"Failed to allocate memory for stats.\n");
goto done;
}
rval = QLA_FUNCTION_FAILED;
if (IS_FWI2_CAPABLE(ha)) {
rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, 0);
} else if (atomic_read(&base_vha->loop_state) == LOOP_READY &&
!ha->dpc_active) {
/* Must be in a 'READY' state for statistics retrieval. */
rval = qla2x00_get_link_status(base_vha, base_vha->loop_id,
stats, stats_dma);
}
if (rval != QLA_SUCCESS)
goto done_free;
/* --- */
for (i = 0; i < vha->hw->max_qpairs; i++) {
qpair = vha->hw->queue_pair_map[i];
if (!qpair)
continue;
ir += qpair->counters.input_requests;
or += qpair->counters.output_requests;
ib += qpair->counters.input_bytes;
ob += qpair->counters.output_bytes;
}
ir += ha->base_qpair->counters.input_requests;
or += ha->base_qpair->counters.output_requests;
ib += ha->base_qpair->counters.input_bytes;
ob += ha->base_qpair->counters.output_bytes;
ir += vha->qla_stats.input_requests;
or += vha->qla_stats.output_requests;
ib += vha->qla_stats.input_bytes;
ob += vha->qla_stats.output_bytes;
/* --- */
p->link_failure_count = le32_to_cpu(stats->link_fail_cnt);
p->loss_of_sync_count = le32_to_cpu(stats->loss_sync_cnt);
p->loss_of_signal_count = le32_to_cpu(stats->loss_sig_cnt);
p->prim_seq_protocol_err_count = le32_to_cpu(stats->prim_seq_err_cnt);
p->invalid_tx_word_count = le32_to_cpu(stats->inval_xmit_word_cnt);
p->invalid_crc_count = le32_to_cpu(stats->inval_crc_cnt);
if (IS_FWI2_CAPABLE(ha)) {
p->lip_count = le32_to_cpu(stats->lip_cnt);
p->tx_frames = le32_to_cpu(stats->tx_frames);
p->rx_frames = le32_to_cpu(stats->rx_frames);
p->dumped_frames = le32_to_cpu(stats->discarded_frames);
p->nos_count = le32_to_cpu(stats->nos_rcvd);
p->error_frames =
le32_to_cpu(stats->dropped_frames) +
le32_to_cpu(stats->discarded_frames);
if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
p->rx_words = le64_to_cpu(stats->fpm_recv_word_cnt);
p->tx_words = le64_to_cpu(stats->fpm_xmit_word_cnt);
} else {
p->rx_words = ib >> 2;
p->tx_words = ob >> 2;
}
}
p->fcp_control_requests = vha->qla_stats.control_requests;
p->fcp_input_requests = ir;
p->fcp_output_requests = or;
p->fcp_input_megabytes = ib >> 20;
p->fcp_output_megabytes = ob >> 20;
p->seconds_since_last_reset =
get_jiffies_64() - vha->qla_stats.jiffies_at_last_reset;
do_div(p->seconds_since_last_reset, HZ);
done_free:
dma_free_coherent(&ha->pdev->dev, sizeof(struct link_statistics),
stats, stats_dma);
done:
return p;
}
static void
qla2x00_reset_host_stats(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
struct link_statistics *stats;
dma_addr_t stats_dma;
int i;
struct qla_qpair *qpair;
memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
for (i = 0; i < vha->hw->max_qpairs; i++) {
qpair = vha->hw->queue_pair_map[i];
if (!qpair)
continue;
memset(&qpair->counters, 0, sizeof(qpair->counters));
}
memset(&ha->base_qpair->counters, 0, sizeof(qpair->counters));
vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
if (IS_FWI2_CAPABLE(ha)) {
int rval;
stats = dma_alloc_coherent(&ha->pdev->dev,
sizeof(*stats), &stats_dma, GFP_KERNEL);
if (!stats) {
ql_log(ql_log_warn, vha, 0x70d7,
"Failed to allocate memory for stats.\n");
return;
}
/* reset firmware statistics */
rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, BIT_0);
if (rval != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0x70de,
"Resetting ISP statistics failed: rval = %d\n",
rval);
dma_free_coherent(&ha->pdev->dev, sizeof(*stats),
stats, stats_dma);
}
}
static void
qla2x00_get_host_symbolic_name(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
qla2x00_get_sym_node_name(vha, fc_host_symbolic_name(shost),
sizeof(fc_host_symbolic_name(shost)));
}
static void
qla2x00_set_host_system_hostname(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
}
static void
qla2x00_get_host_fabric_name(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
static const uint8_t node_name[WWN_SIZE] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};
u64 fabric_name = wwn_to_u64(node_name);
if (vha->device_flags & SWITCH_FOUND)
fabric_name = wwn_to_u64(vha->fabric_node_name);
fc_host_fabric_name(shost) = fabric_name;
}
static void
qla2x00_get_host_port_state(struct Scsi_Host *shost)
{
scsi_qla_host_t *vha = shost_priv(shost);
struct scsi_qla_host *base_vha = pci_get_drvdata(vha->hw->pdev);
if (!base_vha->flags.online) {
fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
return;
}
switch (atomic_read(&base_vha->loop_state)) {
case LOOP_UPDATE:
fc_host_port_state(shost) = FC_PORTSTATE_DIAGNOSTICS;
break;
case LOOP_DOWN:
if (test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags))
fc_host_port_state(shost) = FC_PORTSTATE_DIAGNOSTICS;
else
fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
break;
case LOOP_DEAD:
fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
break;
case LOOP_READY:
fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
break;
default:
fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
break;
}
}
static int
qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
{
int ret = 0;
uint8_t qos = 0;
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
scsi_qla_host_t *vha = NULL;
struct qla_hw_data *ha = base_vha->hw;
int cnt;
struct req_que *req = ha->req_q_map[0];
struct qla_qpair *qpair;
ret = qla24xx_vport_create_req_sanity_check(fc_vport);
if (ret) {
ql_log(ql_log_warn, vha, 0x707e,
"Vport sanity check failed, status %x\n", ret);
return (ret);
}
vha = qla24xx_create_vhost(fc_vport);
if (vha == NULL) {
ql_log(ql_log_warn, vha, 0x707f, "Vport create host failed.\n");
return FC_VPORT_FAILED;
}
if (disable) {
atomic_set(&vha->vp_state, VP_OFFLINE);
fc_vport_set_state(fc_vport, FC_VPORT_DISABLED);
} else
atomic_set(&vha->vp_state, VP_FAILED);
/* ready to create vport */
ql_log(ql_log_info, vha, 0x7080,
"VP entry id %d assigned.\n", vha->vp_idx);
/* initialized vport states */
atomic_set(&vha->loop_state, LOOP_DOWN);
vha->vp_err_state = VP_ERR_PORTDWN;
vha->vp_prev_err_state = VP_ERR_UNKWN;
/* Check if physical ha port is Up */
if (atomic_read(&base_vha->loop_state) == LOOP_DOWN ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
/* Don't retry or attempt login of this virtual port */
ql_dbg(ql_dbg_user, vha, 0x7081,
"Vport loop state is not UP.\n");
atomic_set(&vha->loop_state, LOOP_DEAD);
if (!disable)
fc_vport_set_state(fc_vport, FC_VPORT_LINKDOWN);
}
if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
if (ha->fw_attributes & BIT_4) {
int prot = 0, guard;
vha->flags.difdix_supported = 1;
ql_dbg(ql_dbg_user, vha, 0x7082,
"Registered for DIF/DIX type 1 and 3 protection.\n");
scsi_host_set_prot(vha->host,
prot | SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE2_PROTECTION
| SHOST_DIF_TYPE3_PROTECTION
| SHOST_DIX_TYPE1_PROTECTION
| SHOST_DIX_TYPE2_PROTECTION
| SHOST_DIX_TYPE3_PROTECTION);
guard = SHOST_DIX_GUARD_CRC;
if (IS_PI_IPGUARD_CAPABLE(ha) &&
(ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
guard |= SHOST_DIX_GUARD_IP;
scsi_host_set_guard(vha->host, guard);
} else
vha->flags.difdix_supported = 0;
}
if (scsi_add_host_with_dma(vha->host, &fc_vport->dev,
&ha->pdev->dev)) {
ql_dbg(ql_dbg_user, vha, 0x7083,
"scsi_add_host failure for VP[%d].\n", vha->vp_idx);
goto vport_create_failed_2;
}
/* initialize attributes */
fc_host_dev_loss_tmo(vha->host) = ha->port_down_retry_count;
fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name);
fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name);
fc_host_supported_classes(vha->host) =
fc_host_supported_classes(base_vha->host);
fc_host_supported_speeds(vha->host) =
fc_host_supported_speeds(base_vha->host);
qlt_vport_create(vha, ha);
qla24xx_vport_disable(fc_vport, disable);
if (!ql2xmqsupport || !ha->npiv_info)
goto vport_queue;
/* Create a request queue in QoS mode for the vport */
for (cnt = 0; cnt < ha->nvram_npiv_size; cnt++) {
if (memcmp(ha->npiv_info[cnt].port_name, vha->port_name, 8) == 0
&& memcmp(ha->npiv_info[cnt].node_name, vha->node_name,
8) == 0) {
qos = ha->npiv_info[cnt].q_qos;
break;
}
}
if (qos) {
qpair = qla2xxx_create_qpair(vha, qos, vha->vp_idx, true);
if (!qpair)
ql_log(ql_log_warn, vha, 0x7084,
"Can't create qpair for VP[%d]\n",
vha->vp_idx);
else {
ql_dbg(ql_dbg_multiq, vha, 0xc001,
"Queue pair: %d Qos: %d) created for VP[%d]\n",
qpair->id, qos, vha->vp_idx);
ql_dbg(ql_dbg_user, vha, 0x7085,
"Queue Pair: %d Qos: %d) created for VP[%d]\n",
qpair->id, qos, vha->vp_idx);
req = qpair->req;
vha->qpair = qpair;
}
}
vport_queue:
vha->req = req;
return 0;
vport_create_failed_2:
qla24xx_disable_vp(vha);
qla24xx_deallocate_vp_id(vha);
scsi_host_put(vha->host);
return FC_VPORT_FAILED;
}
static int
qla24xx_vport_delete(struct fc_vport *fc_vport)
{
scsi_qla_host_t *vha = fc_vport->dd_data;
struct qla_hw_data *ha = vha->hw;
uint16_t id = vha->vp_idx;
set_bit(VPORT_DELETE, &vha->dpc_flags);
while (test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
msleep(1000);
qla24xx_disable_vp(vha);
qla2x00_wait_for_sess_deletion(vha);
qla_nvme_delete(vha);
qla_enode_stop(vha);
qla_edb_stop(vha);
vha->flags.delete_progress = 1;
qlt_remove_target(ha, vha);
fc_remove_host(vha->host);
scsi_remove_host(vha->host);
/* Allow timer to run to drain queued items, when removing vp */
qla24xx_deallocate_vp_id(vha);
if (vha->timer_active) {
qla2x00_vp_stop_timer(vha);
ql_dbg(ql_dbg_user, vha, 0x7086,
"Timer for the VP[%d] has stopped\n", vha->vp_idx);
}
qla2x00_free_fcports(vha);
mutex_lock(&ha->vport_lock);
ha->cur_vport_count--;
clear_bit(vha->vp_idx, ha->vp_idx_map);
mutex_unlock(&ha->vport_lock);
dma_free_coherent(&ha->pdev->dev, vha->gnl.size, vha->gnl.l,
vha->gnl.ldma);
vha->gnl.l = NULL;
vfree(vha->scan.l);
if (vha->qpair && vha->qpair->vp_idx == vha->vp_idx) {
if (qla2xxx_delete_qpair(vha, vha->qpair) != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0x7087,
"Queue Pair delete failed.\n");
}
ql_log(ql_log_info, vha, 0x7088, "VP[%d] deleted.\n", id);
scsi_host_put(vha->host);
return 0;
}
static int
qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
{
scsi_qla_host_t *vha = fc_vport->dd_data;
if (disable)
qla24xx_disable_vp(vha);
else
qla24xx_enable_vp(vha);
return 0;
}
struct fc_function_template qla2xxx_transport_functions = {
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.show_host_supported_speeds = 1,
.get_host_port_id = qla2x00_get_host_port_id,
.show_host_port_id = 1,
.get_host_speed = qla2x00_get_host_speed,
.show_host_speed = 1,
.get_host_port_type = qla2x00_get_host_port_type,
.show_host_port_type = 1,
.get_host_symbolic_name = qla2x00_get_host_symbolic_name,
.show_host_symbolic_name = 1,
.set_host_system_hostname = qla2x00_set_host_system_hostname,
.show_host_system_hostname = 1,
.get_host_fabric_name = qla2x00_get_host_fabric_name,
.show_host_fabric_name = 1,
.get_host_port_state = qla2x00_get_host_port_state,
.show_host_port_state = 1,
.dd_fcrport_size = sizeof(struct fc_port *),
.show_rport_supported_classes = 1,
.get_starget_node_name = qla2x00_get_starget_node_name,
.show_starget_node_name = 1,
.get_starget_port_name = qla2x00_get_starget_port_name,
.show_starget_port_name = 1,
.get_starget_port_id = qla2x00_get_starget_port_id,
.show_starget_port_id = 1,
.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.issue_fc_host_lip = qla2x00_issue_lip,
.dev_loss_tmo_callbk = qla2x00_dev_loss_tmo_callbk,
.terminate_rport_io = qla2x00_terminate_rport_io,
.get_fc_host_stats = qla2x00_get_fc_host_stats,
.reset_fc_host_stats = qla2x00_reset_host_stats,
.vport_create = qla24xx_vport_create,
.vport_disable = qla24xx_vport_disable,
.vport_delete = qla24xx_vport_delete,
.bsg_request = qla24xx_bsg_request,
.bsg_timeout = qla24xx_bsg_timeout,
};
struct fc_function_template qla2xxx_transport_vport_functions = {
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.get_host_port_id = qla2x00_get_host_port_id,
.show_host_port_id = 1,
.get_host_speed = qla2x00_get_host_speed,
.show_host_speed = 1,
.get_host_port_type = qla2x00_get_host_port_type,
.show_host_port_type = 1,
.get_host_symbolic_name = qla2x00_get_host_symbolic_name,
.show_host_symbolic_name = 1,
.set_host_system_hostname = qla2x00_set_host_system_hostname,
.show_host_system_hostname = 1,
.get_host_fabric_name = qla2x00_get_host_fabric_name,
.show_host_fabric_name = 1,
.get_host_port_state = qla2x00_get_host_port_state,
.show_host_port_state = 1,
.dd_fcrport_size = sizeof(struct fc_port *),
.show_rport_supported_classes = 1,
.get_starget_node_name = qla2x00_get_starget_node_name,
.show_starget_node_name = 1,
.get_starget_port_name = qla2x00_get_starget_port_name,
.show_starget_port_name = 1,
.get_starget_port_id = qla2x00_get_starget_port_id,
.show_starget_port_id = 1,
.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.issue_fc_host_lip = qla2x00_issue_lip,
.dev_loss_tmo_callbk = qla2x00_dev_loss_tmo_callbk,
.terminate_rport_io = qla2x00_terminate_rport_io,
.get_fc_host_stats = qla2x00_get_fc_host_stats,
.reset_fc_host_stats = qla2x00_reset_host_stats,
.bsg_request = qla24xx_bsg_request,
.bsg_timeout = qla24xx_bsg_timeout,
};
static uint
qla2x00_get_host_supported_speeds(scsi_qla_host_t *vha, uint speeds)
{
uint supported_speeds = FC_PORTSPEED_UNKNOWN;
if (speeds & FDMI_PORT_SPEED_64GB)
supported_speeds |= FC_PORTSPEED_64GBIT;
if (speeds & FDMI_PORT_SPEED_32GB)
supported_speeds |= FC_PORTSPEED_32GBIT;
if (speeds & FDMI_PORT_SPEED_16GB)
supported_speeds |= FC_PORTSPEED_16GBIT;
if (speeds & FDMI_PORT_SPEED_8GB)
supported_speeds |= FC_PORTSPEED_8GBIT;
if (speeds & FDMI_PORT_SPEED_4GB)
supported_speeds |= FC_PORTSPEED_4GBIT;
if (speeds & FDMI_PORT_SPEED_2GB)
supported_speeds |= FC_PORTSPEED_2GBIT;
if (speeds & FDMI_PORT_SPEED_1GB)
supported_speeds |= FC_PORTSPEED_1GBIT;
return supported_speeds;
}
void
qla2x00_init_host_attr(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
u32 speeds = 0, fdmi_speed = 0;
fc_host_dev_loss_tmo(vha->host) = ha->port_down_retry_count;
fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name);
fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name);
fc_host_supported_classes(vha->host) = ha->base_qpair->enable_class_2 ?
(FC_COS_CLASS2|FC_COS_CLASS3) : FC_COS_CLASS3;
fc_host_max_npiv_vports(vha->host) = ha->max_npiv_vports;
fc_host_npiv_vports_inuse(vha->host) = ha->cur_vport_count;
fdmi_speed = qla25xx_fdmi_port_speed_capability(ha);
speeds = qla2x00_get_host_supported_speeds(vha, fdmi_speed);
fc_host_supported_speeds(vha->host) = speeds;
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_attr.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*******************************************************************************
* This file contains tcm implementation using v4 configfs fabric infrastructure
* for QLogic target mode HBAs
*
* (c) Copyright 2010-2013 Datera, Inc.
*
* Author: Nicholas A. Bellinger <[email protected]>
*
* tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from
* the TCM_FC / Open-FCoE.org fabric module.
*
* Copyright (c) 2010 Cisco Systems, Inc
*
****************************************************************************/
#include <linux/module.h>
#include <linux/utsname.h>
#include <linux/vmalloc.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/configfs.h>
#include <linux/ctype.h>
#include <asm/unaligned.h>
#include <scsi/scsi_host.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
#include "qla_def.h"
#include "qla_target.h"
#include "tcm_qla2xxx.h"
static struct workqueue_struct *tcm_qla2xxx_free_wq;
/*
* Parse WWN.
* If strict, we require lower-case hex and colon separators to be sure
* the name is the same as what would be generated by ft_format_wwn()
* so the name and wwn are mapped one-to-one.
*/
static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
{
const char *cp;
char c;
u32 nibble;
u32 byte = 0;
u32 pos = 0;
u32 err;
*wwn = 0;
for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
c = *cp;
if (c == '\n' && cp[1] == '\0')
continue;
if (strict && pos++ == 2 && byte++ < 7) {
pos = 0;
if (c == ':')
continue;
err = 1;
goto fail;
}
if (c == '\0') {
err = 2;
if (strict && byte != 8)
goto fail;
return cp - name;
}
err = 3;
if (isdigit(c))
nibble = c - '0';
else if (isxdigit(c) && (islower(c) || !strict))
nibble = tolower(c) - 'a' + 10;
else
goto fail;
*wwn = (*wwn << 4) | nibble;
}
err = 4;
fail:
pr_debug("err %u len %zu pos %u byte %u\n",
err, cp - name, pos, byte);
return -1;
}
static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
{
u8 b[8];
put_unaligned_be64(wwn, b);
return snprintf(buf, len,
"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
}
/*
* From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn
*/
static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
{
unsigned int i, j;
u8 wwn[8];
memset(wwn, 0, sizeof(wwn));
/* Validate and store the new name */
for (i = 0, j = 0; i < 16; i++) {
int value;
value = hex_to_bin(*ns++);
if (value >= 0)
j = (j << 4) | value;
else
return -EINVAL;
if (i % 2) {
wwn[i/2] = j & 0xff;
j = 0;
}
}
*nm = wwn_to_u64(wwn);
return 0;
}
/*
* This parsing logic follows drivers/scsi/scsi_transport_fc.c:
* store_fc_host_vport_create()
*/
static int tcm_qla2xxx_npiv_parse_wwn(
const char *name,
size_t count,
u64 *wwpn,
u64 *wwnn)
{
unsigned int cnt = count;
int rc;
*wwpn = 0;
*wwnn = 0;
/* count may include a LF at end of string */
if (name[cnt-1] == '\n' || name[cnt-1] == 0)
cnt--;
/* validate we have enough characters for WWPN */
if ((cnt != (16+1+16)) || (name[16] != ':'))
return -EINVAL;
rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn);
if (rc != 0)
return rc;
rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn);
if (rc != 0)
return rc;
return 0;
}
static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
struct tcm_qla2xxx_lport *lport = tpg->lport;
return lport->lport_naa_name;
}
static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return tpg->lport_tpgt;
}
static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return tpg->tpg_attrib.generate_node_acls;
}
static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return tpg->tpg_attrib.cache_dynamic_acls;
}
static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return tpg->tpg_attrib.demo_mode_write_protect;
}
static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return tpg->tpg_attrib.prod_mode_write_protect;
}
static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return tpg->tpg_attrib.demo_mode_login_only;
}
static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return tpg->tpg_attrib.fabric_prot_type;
}
static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return tpg->lport_tpgt;
}
static void tcm_qla2xxx_complete_mcmd(struct work_struct *work)
{
struct qla_tgt_mgmt_cmd *mcmd = container_of(work,
struct qla_tgt_mgmt_cmd, free_work);
transport_generic_free_cmd(&mcmd->se_cmd, 0);
}
/*
* Called from qla_target_template->free_mcmd(), and will call
* tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops
* release callback. qla_hw_data->hardware_lock is expected to be held
*/
static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
{
if (!mcmd)
return;
INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd);
queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work);
}
static void tcm_qla2xxx_complete_free(struct work_struct *work)
{
struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
unsigned long flags;
cmd->cmd_in_wq = 0;
WARN_ON(cmd->trc_flags & TRC_CMD_FREE);
/* To do: protect all tgt_counters manipulations with proper locking. */
cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++;
cmd->trc_flags |= TRC_CMD_FREE;
cmd->cmd_sent_to_fw = 0;
spin_lock_irqsave(&cmd->sess->sess_cmd_lock, flags);
list_del_init(&cmd->sess_cmd_list);
spin_unlock_irqrestore(&cmd->sess->sess_cmd_lock, flags);
transport_generic_free_cmd(&cmd->se_cmd, 0);
}
static struct qla_tgt_cmd *tcm_qla2xxx_get_cmd(struct fc_port *sess)
{
struct se_session *se_sess = sess->se_sess;
struct qla_tgt_cmd *cmd;
int tag, cpu;
tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu);
if (tag < 0)
return NULL;
cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag];
memset(cmd, 0, sizeof(struct qla_tgt_cmd));
cmd->se_cmd.map_tag = tag;
cmd->se_cmd.map_cpu = cpu;
return cmd;
}
static void tcm_qla2xxx_rel_cmd(struct qla_tgt_cmd *cmd)
{
target_free_tag(cmd->sess->se_sess, &cmd->se_cmd);
}
/*
* Called from qla_target_template->free_cmd(), and will call
* tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops
* release callback. qla_hw_data->hardware_lock is expected to be held
*/
static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
{
cmd->qpair->tgt_counters.core_qla_free_cmd++;
cmd->cmd_in_wq = 1;
WARN_ON(cmd->trc_flags & TRC_CMD_DONE);
cmd->trc_flags |= TRC_CMD_DONE;
INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
queue_work(tcm_qla2xxx_free_wq, &cmd->work);
}
/*
* Called from struct target_core_fabric_ops->check_stop_free() context
*/
static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
{
struct qla_tgt_cmd *cmd;
if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) {
cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
cmd->trc_flags |= TRC_CMD_CHK_STOP;
}
return target_put_sess_cmd(se_cmd);
}
/* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying
* fabric descriptor @se_cmd command to release
*/
static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
{
struct qla_tgt_cmd *cmd;
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
struct qla_tgt_mgmt_cmd, se_cmd);
qlt_free_mcmd(mcmd);
return;
}
cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
if (WARN_ON(cmd->cmd_sent_to_fw))
return;
qlt_free_cmd(cmd);
}
static void tcm_qla2xxx_release_session(struct kref *kref)
{
struct fc_port *sess = container_of(kref,
struct fc_port, sess_kref);
qlt_unreg_sess(sess);
}
static void tcm_qla2xxx_put_sess(struct fc_port *sess)
{
if (!sess)
return;
kref_put(&sess->sess_kref, tcm_qla2xxx_release_session);
}
static void tcm_qla2xxx_close_session(struct se_session *se_sess)
{
struct fc_port *sess = se_sess->fabric_sess_ptr;
BUG_ON(!sess);
target_stop_session(se_sess);
sess->explicit_logout = 1;
tcm_qla2xxx_put_sess(sess);
}
static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
{
struct qla_tgt_cmd *cmd = container_of(se_cmd,
struct qla_tgt_cmd, se_cmd);
if (cmd->aborted) {
/* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task
* can get ahead of this cmd. tcm_qla2xxx_aborted_task
* already kick start the free.
*/
pr_debug("write_pending aborted cmd[%p] refcount %d "
"transport_state %x, t_state %x, se_cmd_flags %x\n",
cmd, kref_read(&cmd->se_cmd.cmd_kref),
cmd->se_cmd.transport_state,
cmd->se_cmd.t_state,
cmd->se_cmd.se_cmd_flags);
transport_generic_request_failure(&cmd->se_cmd,
TCM_CHECK_CONDITION_ABORT_CMD);
return 0;
}
cmd->trc_flags |= TRC_XFR_RDY;
cmd->bufflen = se_cmd->data_length;
cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
cmd->sg_cnt = se_cmd->t_data_nents;
cmd->sg = se_cmd->t_data_sg;
cmd->prot_sg_cnt = se_cmd->t_prot_nents;
cmd->prot_sg = se_cmd->t_prot_sg;
cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
se_cmd->pi_err = 0;
/*
* qla_target.c:qlt_rdy_to_xfer() will call dma_map_sg() to setup
* the SGL mappings into PCIe memory for incoming FCP WRITE data.
*/
return qlt_rdy_to_xfer(cmd);
}
static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
{
if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
struct qla_tgt_cmd *cmd = container_of(se_cmd,
struct qla_tgt_cmd, se_cmd);
return cmd->state;
}
return 0;
}
/*
* Called from process context in qla_target.c:qlt_do_work() code
*/
static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
int data_dir, int bidi)
{
struct se_cmd *se_cmd = &cmd->se_cmd;
struct se_session *se_sess;
struct fc_port *sess;
#ifdef CONFIG_TCM_QLA2XXX_DEBUG
struct se_portal_group *se_tpg;
struct tcm_qla2xxx_tpg *tpg;
#endif
int rc, target_flags = TARGET_SCF_ACK_KREF;
unsigned long flags;
if (bidi)
target_flags |= TARGET_SCF_BIDI_OP;
if (se_cmd->cpuid != WORK_CPU_UNBOUND)
target_flags |= TARGET_SCF_USE_CPUID;
sess = cmd->sess;
if (!sess) {
pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n");
return -EINVAL;
}
se_sess = sess->se_sess;
if (!se_sess) {
pr_err("Unable to locate active struct se_session\n");
return -EINVAL;
}
#ifdef CONFIG_TCM_QLA2XXX_DEBUG
se_tpg = se_sess->se_tpg;
tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg);
if (unlikely(tpg->tpg_attrib.jam_host)) {
/* return, and dont run target_submit_cmd,discarding command */
return 0;
}
#endif
cmd->qpair->tgt_counters.qla_core_sbt_cmd++;
spin_lock_irqsave(&sess->sess_cmd_lock, flags);
list_add_tail(&cmd->sess_cmd_list, &sess->sess_cmd_list);
spin_unlock_irqrestore(&sess->sess_cmd_lock, flags);
rc = target_init_cmd(se_cmd, se_sess, &cmd->sense_buffer[0],
cmd->unpacked_lun, data_length, fcp_task_attr,
data_dir, target_flags);
if (rc)
return rc;
if (target_submit_prep(se_cmd, cdb, NULL, 0, NULL, 0, NULL, 0,
GFP_KERNEL))
return 0;
target_submit(se_cmd);
return 0;
}
static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
{
struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
/*
* Ensure that the complete FCP WRITE payload has been received.
* Otherwise return an exception via CHECK_CONDITION status.
*/
cmd->cmd_in_wq = 0;
cmd->cmd_sent_to_fw = 0;
if (cmd->aborted) {
transport_generic_request_failure(&cmd->se_cmd,
TCM_CHECK_CONDITION_ABORT_CMD);
return;
}
cmd->qpair->tgt_counters.qla_core_ret_ctio++;
if (!cmd->write_data_transferred) {
switch (cmd->dif_err_code) {
case DIF_ERR_GRD:
cmd->se_cmd.pi_err =
TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED;
break;
case DIF_ERR_REF:
cmd->se_cmd.pi_err =
TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED;
break;
case DIF_ERR_APP:
cmd->se_cmd.pi_err =
TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED;
break;
case DIF_ERR_NONE:
default:
break;
}
if (cmd->se_cmd.pi_err)
transport_generic_request_failure(&cmd->se_cmd,
cmd->se_cmd.pi_err);
else
transport_generic_request_failure(&cmd->se_cmd,
TCM_CHECK_CONDITION_ABORT_CMD);
return;
}
return target_execute_cmd(&cmd->se_cmd);
}
/*
* Called from qla_target.c:qlt_do_ctio_completion()
*/
static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
{
cmd->trc_flags |= TRC_DATA_IN;
cmd->cmd_in_wq = 1;
INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);
queue_work(tcm_qla2xxx_free_wq, &cmd->work);
}
static int tcm_qla2xxx_chk_dif_tags(uint32_t tag)
{
return 0;
}
static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd,
uint16_t *pfw_prot_opts)
{
struct se_cmd *se_cmd = &cmd->se_cmd;
if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
*pfw_prot_opts |= PO_DISABLE_GUARD_CHECK;
if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG))
*pfw_prot_opts |= PO_DIS_APP_TAG_VALD;
return 0;
}
/*
* Called from qla_target.c:qlt_issue_task_mgmt()
*/
static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
uint16_t tmr_func, uint32_t tag)
{
struct fc_port *sess = mcmd->sess;
struct se_cmd *se_cmd = &mcmd->se_cmd;
int transl_tmr_func = 0;
switch (tmr_func) {
case QLA_TGT_ABTS:
pr_debug("%ld: ABTS received\n", sess->vha->host_no);
transl_tmr_func = TMR_ABORT_TASK;
break;
case QLA_TGT_2G_ABORT_TASK:
pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
transl_tmr_func = TMR_ABORT_TASK;
break;
case QLA_TGT_CLEAR_ACA:
pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no);
transl_tmr_func = TMR_CLEAR_ACA;
break;
case QLA_TGT_TARGET_RESET:
pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no);
transl_tmr_func = TMR_TARGET_WARM_RESET;
break;
case QLA_TGT_LUN_RESET:
pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no);
transl_tmr_func = TMR_LUN_RESET;
break;
case QLA_TGT_CLEAR_TS:
pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no);
transl_tmr_func = TMR_CLEAR_TASK_SET;
break;
case QLA_TGT_ABORT_TS:
pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no);
transl_tmr_func = TMR_ABORT_TASK_SET;
break;
default:
pr_debug("%ld: Unknown task mgmt fn 0x%x\n",
sess->vha->host_no, tmr_func);
return -ENOSYS;
}
return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
transl_tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF);
}
static struct qla_tgt_cmd *tcm_qla2xxx_find_cmd_by_tag(struct fc_port *sess,
uint64_t tag)
{
struct qla_tgt_cmd *cmd;
unsigned long flags;
if (!sess->se_sess)
return NULL;
spin_lock_irqsave(&sess->sess_cmd_lock, flags);
list_for_each_entry(cmd, &sess->sess_cmd_list, sess_cmd_list) {
if (cmd->se_cmd.tag == tag)
goto done;
}
cmd = NULL;
done:
spin_unlock_irqrestore(&sess->sess_cmd_lock, flags);
return cmd;
}
static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
{
struct qla_tgt_cmd *cmd = container_of(se_cmd,
struct qla_tgt_cmd, se_cmd);
if (cmd->aborted) {
/* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task
* can get ahead of this cmd. tcm_qla2xxx_aborted_task
* already kick start the free.
*/
pr_debug("queue_data_in aborted cmd[%p] refcount %d "
"transport_state %x, t_state %x, se_cmd_flags %x\n",
cmd, kref_read(&cmd->se_cmd.cmd_kref),
cmd->se_cmd.transport_state,
cmd->se_cmd.t_state,
cmd->se_cmd.se_cmd_flags);
return 0;
}
cmd->trc_flags |= TRC_XMIT_DATA;
cmd->bufflen = se_cmd->data_length;
cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
cmd->sg_cnt = se_cmd->t_data_nents;
cmd->sg = se_cmd->t_data_sg;
cmd->offset = 0;
cmd->prot_sg_cnt = se_cmd->t_prot_nents;
cmd->prot_sg = se_cmd->t_prot_sg;
cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
se_cmd->pi_err = 0;
/*
* Now queue completed DATA_IN the qla2xxx LLD and response ring
*/
return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
se_cmd->scsi_status);
}
static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
{
struct qla_tgt_cmd *cmd = container_of(se_cmd,
struct qla_tgt_cmd, se_cmd);
int xmit_type = QLA_TGT_XMIT_STATUS;
if (cmd->aborted) {
/*
* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task
* can get ahead of this cmd. tcm_qla2xxx_aborted_task
* already kick start the free.
*/
pr_debug(
"queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n",
cmd, kref_read(&cmd->se_cmd.cmd_kref),
cmd->se_cmd.transport_state, cmd->se_cmd.t_state,
cmd->se_cmd.se_cmd_flags);
return 0;
}
cmd->bufflen = se_cmd->data_length;
cmd->sg = NULL;
cmd->sg_cnt = 0;
cmd->offset = 0;
cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
cmd->trc_flags |= TRC_XMIT_STATUS;
if (se_cmd->data_direction == DMA_FROM_DEVICE) {
/*
* For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen
* for qla_tgt_xmit_response LLD code
*/
if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
se_cmd->residual_count = 0;
}
se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
se_cmd->residual_count += se_cmd->data_length;
cmd->bufflen = 0;
}
/*
* Now queue status response to qla2xxx LLD code and response ring
*/
return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
}
static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
{
struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
struct qla_tgt_mgmt_cmd, se_cmd);
pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
mcmd, se_tmr->function, se_tmr->response);
/*
* Do translation between TCM TM response codes and
* QLA2xxx FC TM response codes.
*/
switch (se_tmr->response) {
case TMR_FUNCTION_COMPLETE:
mcmd->fc_tm_rsp = FC_TM_SUCCESS;
break;
case TMR_TASK_DOES_NOT_EXIST:
mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
break;
case TMR_FUNCTION_REJECTED:
mcmd->fc_tm_rsp = FC_TM_REJECT;
break;
case TMR_LUN_DOES_NOT_EXIST:
default:
mcmd->fc_tm_rsp = FC_TM_FAILED;
break;
}
/*
* Queue the TM response to QLA2xxx LLD to build a
* CTIO response packet.
*/
qlt_xmit_tm_rsp(mcmd);
}
static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
{
struct qla_tgt_cmd *cmd;
unsigned long flags;
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
return;
cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
spin_lock_irqsave(&cmd->sess->sess_cmd_lock, flags);
list_del_init(&cmd->sess_cmd_list);
spin_unlock_irqrestore(&cmd->sess->sess_cmd_lock, flags);
qlt_abort_cmd(cmd);
}
static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
struct tcm_qla2xxx_nacl *, struct fc_port *);
/*
* Expected to be called with struct qla_hw_data->tgt.sess_lock held
*/
static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
{
struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
struct se_portal_group *se_tpg = se_nacl->se_tpg;
struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
struct tcm_qla2xxx_lport, lport_wwn);
struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
struct tcm_qla2xxx_nacl, se_node_acl);
void *node;
pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
if (WARN_ON(node && (node != se_nacl))) {
/*
* The nacl no longer matches what we think it should be.
* Most likely a new dynamic acl has been added while
* someone dropped the hardware lock. It clearly is a
* bug elsewhere, but this bit can't make things worse.
*/
btree_insert32(&lport->lport_fcport_map, nacl->nport_id,
node, GFP_ATOMIC);
}
pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
se_nacl, nacl->nport_wwnn, nacl->nport_id);
/*
* Now clear the se_nacl and session pointers from our HW lport lookup
* table mapping for this initiator's fabric S_ID and LOOP_ID entries.
*
* This is done ahead of callbacks into tcm_qla2xxx_free_session() ->
* target_wait_for_sess_cmds() before the session waits for outstanding
* I/O to complete, to avoid a race between session shutdown execution
* and incoming ATIOs or TMRs picking up a stale se_node_act reference.
*/
tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
}
static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
{
target_stop_session(sess->se_sess);
}
static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
const char *name)
{
struct tcm_qla2xxx_nacl *nacl =
container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
u64 wwnn;
if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
return -EINVAL;
nacl->nport_wwnn = wwnn;
tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
return 0;
}
/* Start items for tcm_qla2xxx_tpg_attrib_cit */
#define DEF_QLA_TPG_ATTRIB(name) \
\
static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \
struct config_item *item, char *page) \
{ \
struct se_portal_group *se_tpg = attrib_to_tpg(item); \
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
struct tcm_qla2xxx_tpg, se_tpg); \
\
return sprintf(page, "%d\n", tpg->tpg_attrib.name); \
} \
\
static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \
struct config_item *item, const char *page, size_t count) \
{ \
struct se_portal_group *se_tpg = attrib_to_tpg(item); \
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
struct tcm_qla2xxx_tpg, se_tpg); \
struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
unsigned long val; \
int ret; \
\
ret = kstrtoul(page, 0, &val); \
if (ret < 0) { \
pr_err("kstrtoul() failed with" \
" ret: %d\n", ret); \
return -EINVAL; \
} \
\
if ((val != 0) && (val != 1)) { \
pr_err("Illegal boolean value %lu\n", val); \
return -EINVAL; \
} \
\
a->name = val; \
\
return count; \
} \
CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name)
DEF_QLA_TPG_ATTRIB(generate_node_acls);
DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
#ifdef CONFIG_TCM_QLA2XXX_DEBUG
DEF_QLA_TPG_ATTRIB(jam_host);
#endif
static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
&tcm_qla2xxx_tpg_attrib_attr_generate_node_acls,
&tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls,
&tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect,
&tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect,
&tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only,
#ifdef CONFIG_TCM_QLA2XXX_DEBUG
&tcm_qla2xxx_tpg_attrib_attr_jam_host,
#endif
NULL,
};
/* End items for tcm_qla2xxx_tpg_attrib_cit */
static int tcm_qla2xxx_enable_tpg(struct se_portal_group *se_tpg,
bool enable)
{
struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
struct tcm_qla2xxx_lport, lport_wwn);
struct scsi_qla_host *vha = lport->qla_vha;
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
if (enable) {
if (atomic_read(&tpg->lport_tpg_enabled))
return -EEXIST;
atomic_set(&tpg->lport_tpg_enabled, 1);
qlt_enable_vha(vha);
} else {
if (!atomic_read(&tpg->lport_tpg_enabled))
return 0;
atomic_set(&tpg->lport_tpg_enabled, 0);
qlt_stop_phase1(vha->vha_tgt.qla_tgt);
qlt_stop_phase2(vha->vha_tgt.qla_tgt);
}
return 0;
}
static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item,
char *page)
{
return target_show_dynamic_sessions(to_tpg(item), page);
}
static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item,
const char *page, size_t count)
{
struct se_portal_group *se_tpg = to_tpg(item);
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
unsigned long val;
int ret = kstrtoul(page, 0, &val);
if (ret) {
pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret);
return ret;
}
if (val != 0 && val != 1 && val != 3) {
pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val);
return -EINVAL;
}
tpg->tpg_attrib.fabric_prot_type = val;
return count;
}
static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item,
char *page)
{
struct se_portal_group *se_tpg = to_tpg(item);
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type);
}
CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions);
CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type);
static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
&tcm_qla2xxx_tpg_attr_dynamic_sessions,
&tcm_qla2xxx_tpg_attr_fabric_prot_type,
NULL,
};
static struct se_portal_group *tcm_qla2xxx_make_tpg(struct se_wwn *wwn,
const char *name)
{
struct tcm_qla2xxx_lport *lport = container_of(wwn,
struct tcm_qla2xxx_lport, lport_wwn);
struct tcm_qla2xxx_tpg *tpg;
unsigned long tpgt;
int ret;
if (strstr(name, "tpgt_") != name)
return ERR_PTR(-EINVAL);
if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
return ERR_PTR(-EINVAL);
if ((tpgt != 1)) {
pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
return ERR_PTR(-ENOSYS);
}
tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
if (!tpg) {
pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
return ERR_PTR(-ENOMEM);
}
tpg->lport = lport;
tpg->lport_tpgt = tpgt;
/*
* By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
* NodeACLs
*/
tpg->tpg_attrib.generate_node_acls = 1;
tpg->tpg_attrib.demo_mode_write_protect = 1;
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
tpg->tpg_attrib.jam_host = 0;
ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
if (ret < 0) {
kfree(tpg);
return NULL;
}
lport->tpg_1 = tpg;
return &tpg->se_tpg;
}
static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
struct tcm_qla2xxx_lport *lport = tpg->lport;
struct scsi_qla_host *vha = lport->qla_vha;
/*
* Call into qla2x_target.c LLD logic to shutdown the active
* FC Nexuses and disable target mode operation for this qla_hw_data
*/
if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop)
qlt_stop_phase1(vha->vha_tgt.qla_tgt);
core_tpg_deregister(se_tpg);
/*
* Clear local TPG=1 pointer for non NPIV mode.
*/
lport->tpg_1 = NULL;
kfree(tpg);
}
static int tcm_qla2xxx_npiv_enable_tpg(struct se_portal_group *se_tpg,
bool enable)
{
struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
struct tcm_qla2xxx_lport, lport_wwn);
struct scsi_qla_host *vha = lport->qla_vha;
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
if (enable) {
if (atomic_read(&tpg->lport_tpg_enabled))
return -EEXIST;
atomic_set(&tpg->lport_tpg_enabled, 1);
qlt_enable_vha(vha);
} else {
if (!atomic_read(&tpg->lport_tpg_enabled))
return 0;
atomic_set(&tpg->lport_tpg_enabled, 0);
qlt_stop_phase1(vha->vha_tgt.qla_tgt);
qlt_stop_phase2(vha->vha_tgt.qla_tgt);
}
return 0;
}
static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(struct se_wwn *wwn,
const char *name)
{
struct tcm_qla2xxx_lport *lport = container_of(wwn,
struct tcm_qla2xxx_lport, lport_wwn);
struct tcm_qla2xxx_tpg *tpg;
unsigned long tpgt;
int ret;
if (strstr(name, "tpgt_") != name)
return ERR_PTR(-EINVAL);
if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
return ERR_PTR(-EINVAL);
tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
if (!tpg) {
pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
return ERR_PTR(-ENOMEM);
}
tpg->lport = lport;
tpg->lport_tpgt = tpgt;
/*
* By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
* NodeACLs
*/
tpg->tpg_attrib.generate_node_acls = 1;
tpg->tpg_attrib.demo_mode_write_protect = 1;
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
if (ret < 0) {
kfree(tpg);
return NULL;
}
lport->tpg_1 = tpg;
return &tpg->se_tpg;
}
/*
* Expected to be called with struct qla_hw_data->tgt.sess_lock held
*/
static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(scsi_qla_host_t *vha,
const be_id_t s_id)
{
struct tcm_qla2xxx_lport *lport;
struct se_node_acl *se_nacl;
struct tcm_qla2xxx_nacl *nacl;
u32 key;
lport = vha->vha_tgt.target_lport_ptr;
if (!lport) {
pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
dump_stack();
return NULL;
}
key = sid_to_key(s_id);
pr_debug("find_sess_by_s_id: 0x%06x\n", key);
se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
if (!se_nacl) {
pr_debug("Unable to locate s_id: 0x%06x\n", key);
return NULL;
}
pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
se_nacl, se_nacl->initiatorname);
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
if (!nacl->fc_port) {
pr_err("Unable to locate struct fc_port\n");
return NULL;
}
return nacl->fc_port;
}
/*
* Expected to be called with struct qla_hw_data->tgt.sess_lock held
*/
static void tcm_qla2xxx_set_sess_by_s_id(
struct tcm_qla2xxx_lport *lport,
struct se_node_acl *new_se_nacl,
struct tcm_qla2xxx_nacl *nacl,
struct se_session *se_sess,
struct fc_port *fc_port,
be_id_t s_id)
{
u32 key;
void *slot;
int rc;
key = sid_to_key(s_id);
pr_debug("set_sess_by_s_id: %06x\n", key);
slot = btree_lookup32(&lport->lport_fcport_map, key);
if (!slot) {
if (new_se_nacl) {
pr_debug("Setting up new fc_port entry to new_se_nacl\n");
nacl->nport_id = key;
rc = btree_insert32(&lport->lport_fcport_map, key,
new_se_nacl, GFP_ATOMIC);
if (rc)
printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
(int)key);
} else {
pr_debug("Wiping nonexisting fc_port entry\n");
}
fc_port->se_sess = se_sess;
nacl->fc_port = fc_port;
return;
}
if (nacl->fc_port) {
if (new_se_nacl == NULL) {
pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
btree_remove32(&lport->lport_fcport_map, key);
nacl->fc_port = NULL;
return;
}
pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
fc_port->se_sess = se_sess;
nacl->fc_port = fc_port;
return;
}
if (new_se_nacl == NULL) {
pr_debug("Clearing existing fc_port entry\n");
btree_remove32(&lport->lport_fcport_map, key);
return;
}
pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
fc_port->se_sess = se_sess;
nacl->fc_port = fc_port;
pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
}
/*
* Expected to be called with struct qla_hw_data->tgt.sess_lock held
*/
static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
scsi_qla_host_t *vha,
const uint16_t loop_id)
{
struct tcm_qla2xxx_lport *lport;
struct se_node_acl *se_nacl;
struct tcm_qla2xxx_nacl *nacl;
struct tcm_qla2xxx_fc_loopid *fc_loopid;
lport = vha->vha_tgt.target_lport_ptr;
if (!lport) {
pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
dump_stack();
return NULL;
}
pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
fc_loopid = lport->lport_loopid_map + loop_id;
se_nacl = fc_loopid->se_nacl;
if (!se_nacl) {
pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
loop_id);
return NULL;
}
nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
if (!nacl->fc_port) {
pr_err("Unable to locate struct fc_port\n");
return NULL;
}
return nacl->fc_port;
}
/*
* Expected to be called with struct qla_hw_data->tgt.sess_lock held
*/
static void tcm_qla2xxx_set_sess_by_loop_id(
struct tcm_qla2xxx_lport *lport,
struct se_node_acl *new_se_nacl,
struct tcm_qla2xxx_nacl *nacl,
struct se_session *se_sess,
struct fc_port *fc_port,
uint16_t loop_id)
{
struct se_node_acl *saved_nacl;
struct tcm_qla2xxx_fc_loopid *fc_loopid;
pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
lport->lport_loopid_map)[loop_id];
saved_nacl = fc_loopid->se_nacl;
if (!saved_nacl) {
pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
fc_loopid->se_nacl = new_se_nacl;
if (fc_port->se_sess != se_sess)
fc_port->se_sess = se_sess;
if (nacl->fc_port != fc_port)
nacl->fc_port = fc_port;
return;
}
if (nacl->fc_port) {
if (new_se_nacl == NULL) {
pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
fc_loopid->se_nacl = NULL;
nacl->fc_port = NULL;
return;
}
pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
fc_loopid->se_nacl = new_se_nacl;
if (fc_port->se_sess != se_sess)
fc_port->se_sess = se_sess;
if (nacl->fc_port != fc_port)
nacl->fc_port = fc_port;
return;
}
if (new_se_nacl == NULL) {
pr_debug("Clearing fc_loopid->se_nacl\n");
fc_loopid->se_nacl = NULL;
return;
}
pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
fc_loopid->se_nacl = new_se_nacl;
if (fc_port->se_sess != se_sess)
fc_port->se_sess = se_sess;
if (nacl->fc_port != fc_port)
nacl->fc_port = fc_port;
pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
}
/*
* Should always be called with qla_hw_data->tgt.sess_lock held.
*/
static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
{
struct se_session *se_sess = sess->se_sess;
tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
sess, port_id_to_be_id(sess->d_id));
tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
sess, sess->loop_id);
}
static void tcm_qla2xxx_free_session(struct fc_port *sess)
{
struct qla_tgt *tgt = sess->tgt;
struct qla_hw_data *ha = tgt->ha;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
struct se_session *se_sess;
struct tcm_qla2xxx_lport *lport;
se_sess = sess->se_sess;
if (!se_sess) {
pr_err("struct fc_port->se_sess is NULL\n");
dump_stack();
return;
}
lport = vha->vha_tgt.target_lport_ptr;
if (!lport) {
pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
dump_stack();
return;
}
target_wait_for_sess_cmds(se_sess);
target_remove_session(se_sess);
}
static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
struct se_session *se_sess, void *p)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
struct tcm_qla2xxx_lport *lport = tpg->lport;
struct qla_hw_data *ha = lport->qla_vha->hw;
struct se_node_acl *se_nacl = se_sess->se_node_acl;
struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
struct tcm_qla2xxx_nacl, se_node_acl);
struct fc_port *qlat_sess = p;
uint16_t loop_id = qlat_sess->loop_id;
unsigned long flags;
/*
* And now setup se_nacl and session pointers into HW lport internal
* mappings for fabric S_ID and LOOP_ID.
*/
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl, se_sess, qlat_sess,
port_id_to_be_id(qlat_sess->d_id));
tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl,
se_sess, qlat_sess, loop_id);
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
return 0;
}
/*
* Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl()
* to locate struct se_node_acl
*/
static int tcm_qla2xxx_check_initiator_node_acl(
scsi_qla_host_t *vha,
unsigned char *fc_wwpn,
struct fc_port *qlat_sess)
{
struct qla_hw_data *ha = vha->hw;
struct tcm_qla2xxx_lport *lport;
struct tcm_qla2xxx_tpg *tpg;
struct se_session *se_sess;
unsigned char port_name[36];
int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count :
TCM_QLA2XXX_DEFAULT_TAGS;
lport = vha->vha_tgt.target_lport_ptr;
if (!lport) {
pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
dump_stack();
return -EINVAL;
}
/*
* Locate the TPG=1 reference..
*/
tpg = lport->tpg_1;
if (!tpg) {
pr_err("Unable to locate struct tcm_qla2xxx_lport->tpg_1\n");
return -EINVAL;
}
/*
* Format the FCP Initiator port_name into colon seperated values to
* match the format by tcm_qla2xxx explict ConfigFS NodeACLs.
*/
memset(&port_name, 0, 36);
snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn);
/*
* Locate our struct se_node_acl either from an explict NodeACL created
* via ConfigFS, or via running in TPG demo mode.
*/
se_sess = target_setup_session(&tpg->se_tpg, num_tags,
sizeof(struct qla_tgt_cmd),
TARGET_PROT_ALL, port_name,
qlat_sess, tcm_qla2xxx_session_cb);
if (IS_ERR(se_sess))
return PTR_ERR(se_sess);
return 0;
}
static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
uint16_t loop_id, bool conf_compl_supported)
{
struct qla_tgt *tgt = sess->tgt;
struct qla_hw_data *ha = tgt->ha;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr;
struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
struct tcm_qla2xxx_nacl, se_node_acl);
u32 key;
if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24)
pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
sess, sess->port_name,
sess->loop_id, loop_id, sess->d_id.b.domain,
sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain,
s_id.b.area, s_id.b.al_pa);
if (sess->loop_id != loop_id) {
/*
* Because we can shuffle loop IDs around and we
* update different sessions non-atomically, we might
* have overwritten this session's old loop ID
* already, and we might end up overwriting some other
* session that will be updated later. So we have to
* be extra careful and we can't warn about those things...
*/
if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
sess->loop_id = loop_id;
}
if (sess->d_id.b24 != s_id.b24) {
key = (((u32) sess->d_id.b.domain << 16) |
((u32) sess->d_id.b.area << 8) |
((u32) sess->d_id.b.al_pa));
if (btree_lookup32(&lport->lport_fcport_map, key))
WARN(btree_remove32(&lport->lport_fcport_map, key) !=
se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n",
sess->d_id.b.domain, sess->d_id.b.area,
sess->d_id.b.al_pa);
else
WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
sess->d_id.b.domain, sess->d_id.b.area,
sess->d_id.b.al_pa);
key = (((u32) s_id.b.domain << 16) |
((u32) s_id.b.area << 8) |
((u32) s_id.b.al_pa));
if (btree_lookup32(&lport->lport_fcport_map, key)) {
WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
s_id.b.domain, s_id.b.area, s_id.b.al_pa);
btree_update32(&lport->lport_fcport_map, key, se_nacl);
} else {
btree_insert32(&lport->lport_fcport_map, key, se_nacl,
GFP_ATOMIC);
}
sess->d_id = s_id;
nacl->nport_id = key;
}
sess->conf_compl_supported = conf_compl_supported;
}
/*
* Calls into tcm_qla2xxx used by qla2xxx LLD I/O path.
*/
static const struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
.find_cmd_by_tag = tcm_qla2xxx_find_cmd_by_tag,
.handle_cmd = tcm_qla2xxx_handle_cmd,
.handle_data = tcm_qla2xxx_handle_data,
.handle_tmr = tcm_qla2xxx_handle_tmr,
.get_cmd = tcm_qla2xxx_get_cmd,
.rel_cmd = tcm_qla2xxx_rel_cmd,
.free_cmd = tcm_qla2xxx_free_cmd,
.free_mcmd = tcm_qla2xxx_free_mcmd,
.free_session = tcm_qla2xxx_free_session,
.update_sess = tcm_qla2xxx_update_sess,
.check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
.find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
.find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
.clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
.put_sess = tcm_qla2xxx_put_sess,
.shutdown_sess = tcm_qla2xxx_shutdown_sess,
.get_dif_tags = tcm_qla2xxx_dif_tags,
.chk_dif_tags = tcm_qla2xxx_chk_dif_tags,
};
static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
{
int rc;
size_t map_sz;
rc = btree_init32(&lport->lport_fcport_map);
if (rc) {
pr_err("Unable to initialize lport->lport_fcport_map btree\n");
return rc;
}
map_sz = array_size(65536, sizeof(struct tcm_qla2xxx_fc_loopid));
lport->lport_loopid_map = vzalloc(map_sz);
if (!lport->lport_loopid_map) {
pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n", map_sz);
btree_destroy32(&lport->lport_fcport_map);
return -ENOMEM;
}
pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n", map_sz);
return 0;
}
static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha,
void *target_lport_ptr,
u64 npiv_wwpn, u64 npiv_wwnn)
{
struct qla_hw_data *ha = vha->hw;
struct tcm_qla2xxx_lport *lport =
(struct tcm_qla2xxx_lport *)target_lport_ptr;
/*
* Setup tgt_ops, local pointer to vha and target_lport_ptr
*/
ha->tgt.tgt_ops = &tcm_qla2xxx_template;
vha->vha_tgt.target_lport_ptr = target_lport_ptr;
lport->qla_vha = vha;
return 0;
}
static struct se_wwn *tcm_qla2xxx_make_lport(
struct target_fabric_configfs *tf,
struct config_group *group,
const char *name)
{
struct tcm_qla2xxx_lport *lport;
u64 wwpn;
int ret = -ENODEV;
if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
return ERR_PTR(-EINVAL);
lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
if (!lport) {
pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
return ERR_PTR(-ENOMEM);
}
lport->lport_wwpn = wwpn;
tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
wwpn);
sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
ret = tcm_qla2xxx_init_lport(lport);
if (ret != 0)
goto out;
ret = qlt_lport_register(lport, wwpn, 0, 0,
tcm_qla2xxx_lport_register_cb);
if (ret != 0)
goto out_lport;
return &lport->lport_wwn;
out_lport:
vfree(lport->lport_loopid_map);
btree_destroy32(&lport->lport_fcport_map);
out:
kfree(lport);
return ERR_PTR(ret);
}
static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
{
struct tcm_qla2xxx_lport *lport = container_of(wwn,
struct tcm_qla2xxx_lport, lport_wwn);
struct scsi_qla_host *vha = lport->qla_vha;
struct se_node_acl *node;
u32 key = 0;
/*
* Call into qla2x_target.c LLD logic to complete the
* shutdown of struct qla_tgt after the call to
* qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above..
*/
if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped)
qlt_stop_phase2(vha->vha_tgt.qla_tgt);
qlt_lport_deregister(vha);
vfree(lport->lport_loopid_map);
btree_for_each_safe32(&lport->lport_fcport_map, key, node)
btree_remove32(&lport->lport_fcport_map, key);
btree_destroy32(&lport->lport_fcport_map);
kfree(lport);
}
static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha,
void *target_lport_ptr,
u64 npiv_wwpn, u64 npiv_wwnn)
{
struct fc_vport *vport;
struct Scsi_Host *sh = base_vha->host;
struct scsi_qla_host *npiv_vha;
struct tcm_qla2xxx_lport *lport =
(struct tcm_qla2xxx_lport *)target_lport_ptr;
struct tcm_qla2xxx_lport *base_lport =
(struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr;
struct fc_vport_identifiers vport_id;
if (qla_ini_mode_enabled(base_vha)) {
pr_err("qla2xxx base_vha not enabled for target mode\n");
return -EPERM;
}
if (!base_lport || !base_lport->tpg_1 ||
!atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) {
pr_err("qla2xxx base_lport or tpg_1 not available\n");
return -EPERM;
}
memset(&vport_id, 0, sizeof(vport_id));
vport_id.port_name = npiv_wwpn;
vport_id.node_name = npiv_wwnn;
vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
vport_id.vport_type = FC_PORTTYPE_NPIV;
vport_id.disable = false;
vport = fc_vport_create(sh, 0, &vport_id);
if (!vport) {
pr_err("fc_vport_create failed for qla2xxx_npiv\n");
return -ENODEV;
}
/*
* Setup local pointer to NPIV vhba + target_lport_ptr
*/
npiv_vha = (struct scsi_qla_host *)vport->dd_data;
npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr;
lport->qla_vha = npiv_vha;
scsi_host_get(npiv_vha->host);
return 0;
}
static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
struct target_fabric_configfs *tf,
struct config_group *group,
const char *name)
{
struct tcm_qla2xxx_lport *lport;
u64 phys_wwpn, npiv_wwpn, npiv_wwnn;
char *p, tmp[128];
int ret;
snprintf(tmp, 128, "%s", name);
p = strchr(tmp, '@');
if (!p) {
pr_err("Unable to locate NPIV '@' separator\n");
return ERR_PTR(-EINVAL);
}
*p++ = '\0';
if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0)
return ERR_PTR(-EINVAL);
if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1,
&npiv_wwpn, &npiv_wwnn) < 0)
return ERR_PTR(-EINVAL);
lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
if (!lport) {
pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
return ERR_PTR(-ENOMEM);
}
lport->lport_npiv_wwpn = npiv_wwpn;
lport->lport_npiv_wwnn = npiv_wwnn;
sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
ret = tcm_qla2xxx_init_lport(lport);
if (ret != 0)
goto out;
ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn,
tcm_qla2xxx_lport_register_npiv_cb);
if (ret != 0)
goto out_lport;
return &lport->lport_wwn;
out_lport:
vfree(lport->lport_loopid_map);
btree_destroy32(&lport->lport_fcport_map);
out:
kfree(lport);
return ERR_PTR(ret);
}
static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
{
struct tcm_qla2xxx_lport *lport = container_of(wwn,
struct tcm_qla2xxx_lport, lport_wwn);
struct scsi_qla_host *npiv_vha = lport->qla_vha;
struct qla_hw_data *ha = npiv_vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
scsi_host_put(npiv_vha->host);
/*
* Notify libfc that we want to release the vha->fc_vport
*/
fc_vport_terminate(npiv_vha->fc_vport);
scsi_host_put(base_vha->host);
kfree(lport);
}
static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item,
char *page)
{
return sprintf(page,
"TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n",
QLA2XXX_VERSION, utsname()->sysname,
utsname()->machine, utsname()->release);
}
CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version);
static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
&tcm_qla2xxx_wwn_attr_version,
NULL,
};
static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
.module = THIS_MODULE,
.fabric_name = "qla2xxx",
.node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
/*
* XXX: Limit assumes single page per scatter-gather-list entry.
* Current maximum is ~4.9 MB per se_cmd->t_data_sg with PAGE_SIZE=4096
*/
.max_data_sg_nents = 1200,
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
.tpg_get_tag = tcm_qla2xxx_get_tag,
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
tcm_qla2xxx_check_demo_write_protect,
.tpg_check_prod_mode_write_protect =
tcm_qla2xxx_check_prod_write_protect,
.tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
.tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
.tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
.check_stop_free = tcm_qla2xxx_check_stop_free,
.release_cmd = tcm_qla2xxx_release_cmd,
.close_session = tcm_qla2xxx_close_session,
.sess_get_initiator_sid = NULL,
.write_pending = tcm_qla2xxx_write_pending,
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
.queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
.aborted_task = tcm_qla2xxx_aborted_task,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c
*/
.fabric_make_wwn = tcm_qla2xxx_make_lport,
.fabric_drop_wwn = tcm_qla2xxx_drop_lport,
.fabric_make_tpg = tcm_qla2xxx_make_tpg,
.fabric_enable_tpg = tcm_qla2xxx_enable_tpg,
.fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
.fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
.tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
.tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
.tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs,
};
static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
.module = THIS_MODULE,
.fabric_name = "qla2xxx_npiv",
.node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
.tpg_get_tag = tcm_qla2xxx_get_tag,
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
.tpg_check_prod_mode_write_protect =
tcm_qla2xxx_check_prod_write_protect,
.tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
.tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
.check_stop_free = tcm_qla2xxx_check_stop_free,
.release_cmd = tcm_qla2xxx_release_cmd,
.close_session = tcm_qla2xxx_close_session,
.sess_get_initiator_sid = NULL,
.write_pending = tcm_qla2xxx_write_pending,
.get_cmd_state = tcm_qla2xxx_get_cmd_state,
.queue_data_in = tcm_qla2xxx_queue_data_in,
.queue_status = tcm_qla2xxx_queue_status,
.queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
.aborted_task = tcm_qla2xxx_aborted_task,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c
*/
.fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
.fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
.fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
.fabric_enable_tpg = tcm_qla2xxx_npiv_enable_tpg,
.fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
.fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
.tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
};
static int tcm_qla2xxx_register_configfs(void)
{
int ret;
pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n",
QLA2XXX_VERSION, utsname()->sysname,
utsname()->machine, utsname()->release);
ret = target_register_template(&tcm_qla2xxx_ops);
if (ret)
return ret;
ret = target_register_template(&tcm_qla2xxx_npiv_ops);
if (ret)
goto out_fabric;
tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
WQ_MEM_RECLAIM, 0);
if (!tcm_qla2xxx_free_wq) {
ret = -ENOMEM;
goto out_fabric_npiv;
}
return 0;
out_fabric_npiv:
target_unregister_template(&tcm_qla2xxx_npiv_ops);
out_fabric:
target_unregister_template(&tcm_qla2xxx_ops);
return ret;
}
static void tcm_qla2xxx_deregister_configfs(void)
{
destroy_workqueue(tcm_qla2xxx_free_wq);
target_unregister_template(&tcm_qla2xxx_ops);
target_unregister_template(&tcm_qla2xxx_npiv_ops);
}
static int __init tcm_qla2xxx_init(void)
{
int ret;
BUILD_BUG_ON(sizeof(struct abts_recv_from_24xx) != 64);
BUILD_BUG_ON(sizeof(struct abts_resp_from_24xx_fw) != 64);
BUILD_BUG_ON(sizeof(struct atio7_fcp_cmnd) != 32);
BUILD_BUG_ON(sizeof(struct atio_from_isp) != 64);
BUILD_BUG_ON(sizeof(struct ba_acc_le) != 12);
BUILD_BUG_ON(sizeof(struct ba_rjt_le) != 4);
BUILD_BUG_ON(sizeof(struct ctio7_from_24xx) != 64);
BUILD_BUG_ON(sizeof(struct ctio7_to_24xx) != 64);
BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
BUILD_BUG_ON(sizeof(struct ctio_crc_from_fw) != 64);
BUILD_BUG_ON(sizeof(struct ctio_to_2xxx) != 64);
BUILD_BUG_ON(sizeof(struct fcp_hdr) != 24);
BUILD_BUG_ON(sizeof(struct fcp_hdr_le) != 24);
BUILD_BUG_ON(sizeof(struct nack_to_isp) != 64);
ret = tcm_qla2xxx_register_configfs();
if (ret < 0)
return ret;
return 0;
}
static void __exit tcm_qla2xxx_exit(void)
{
tcm_qla2xxx_deregister_configfs();
}
MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver");
MODULE_LICENSE("GPL");
module_init(tcm_qla2xxx_init);
module_exit(tcm_qla2xxx_exit);
|
linux-master
|
drivers/scsi/qla2xxx/tcm_qla2xxx.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Marvell Fibre Channel HBA Driver
* Copyright (c) 2021 Marvell
*/
#include "qla_def.h"
#include "qla_edif.h"
#include <linux/kthread.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <scsi/scsi_tcq.h>
static struct edif_sa_index_entry *qla_edif_sadb_find_sa_index_entry(uint16_t nport_handle,
struct list_head *sa_list);
static uint16_t qla_edif_sadb_get_sa_index(fc_port_t *fcport,
struct qla_sa_update_frame *sa_frame);
static int qla_edif_sadb_delete_sa_index(fc_port_t *fcport, uint16_t nport_handle,
uint16_t sa_index);
static int qla_pur_get_pending(scsi_qla_host_t *, fc_port_t *, struct bsg_job *);
struct edb_node {
struct list_head list;
uint32_t ntype;
union {
port_id_t plogi_did;
uint32_t async;
port_id_t els_sid;
struct edif_sa_update_aen sa_aen;
} u;
};
static struct els_sub_cmd {
uint16_t cmd;
const char *str;
} sc_str[] = {
{SEND_ELS, "send ELS"},
{SEND_ELS_REPLY, "send ELS Reply"},
{PULL_ELS, "retrieve ELS"},
};
const char *sc_to_str(uint16_t cmd)
{
int i;
struct els_sub_cmd *e;
for (i = 0; i < ARRAY_SIZE(sc_str); i++) {
e = sc_str + i;
if (cmd == e->cmd)
return e->str;
}
return "unknown";
}
static struct edb_node *qla_edb_getnext(scsi_qla_host_t *vha)
{
unsigned long flags;
struct edb_node *edbnode = NULL;
spin_lock_irqsave(&vha->e_dbell.db_lock, flags);
/* db nodes are fifo - no qualifications done */
if (!list_empty(&vha->e_dbell.head)) {
edbnode = list_first_entry(&vha->e_dbell.head,
struct edb_node, list);
list_del_init(&edbnode->list);
}
spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags);
return edbnode;
}
static void qla_edb_node_free(scsi_qla_host_t *vha, struct edb_node *node)
{
list_del_init(&node->list);
kfree(node);
}
static struct edif_list_entry *qla_edif_list_find_sa_index(fc_port_t *fcport,
uint16_t handle)
{
struct edif_list_entry *entry;
struct edif_list_entry *tentry;
struct list_head *indx_list = &fcport->edif.edif_indx_list;
list_for_each_entry_safe(entry, tentry, indx_list, next) {
if (entry->handle == handle)
return entry;
}
return NULL;
}
/* timeout called when no traffic and delayed rx sa_index delete */
static void qla2x00_sa_replace_iocb_timeout(struct timer_list *t)
{
struct edif_list_entry *edif_entry = from_timer(edif_entry, t, timer);
fc_port_t *fcport = edif_entry->fcport;
struct scsi_qla_host *vha = fcport->vha;
struct edif_sa_ctl *sa_ctl;
uint16_t nport_handle;
unsigned long flags = 0;
ql_dbg(ql_dbg_edif, vha, 0x3069,
"%s: nport_handle 0x%x, SA REPL Delay Timeout, %8phC portid=%06x\n",
__func__, edif_entry->handle, fcport->port_name, fcport->d_id.b24);
/*
* if delete_sa_index is valid then no one has serviced this
* delayed delete
*/
spin_lock_irqsave(&fcport->edif.indx_list_lock, flags);
/*
* delete_sa_index is invalidated when we find the new sa_index in
* the incoming data stream. If it is not invalidated then we are
* still looking for the new sa_index because there is no I/O and we
* need to just force the rx delete and move on. Otherwise
* we could get another rekey which will result in an error 66.
*/
if (edif_entry->delete_sa_index != INVALID_EDIF_SA_INDEX) {
uint16_t delete_sa_index = edif_entry->delete_sa_index;
edif_entry->delete_sa_index = INVALID_EDIF_SA_INDEX;
nport_handle = edif_entry->handle;
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
sa_ctl = qla_edif_find_sa_ctl_by_index(fcport,
delete_sa_index, 0);
if (sa_ctl) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: sa_ctl: %p, delete index %d, update index: %d, lid: 0x%x\n",
__func__, sa_ctl, delete_sa_index, edif_entry->update_sa_index,
nport_handle);
sa_ctl->flags = EDIF_SA_CTL_FLG_DEL;
set_bit(EDIF_SA_CTL_REPL, &sa_ctl->state);
qla_post_sa_replace_work(fcport->vha, fcport,
nport_handle, sa_ctl);
} else {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: sa_ctl not found for delete_sa_index: %d\n",
__func__, edif_entry->delete_sa_index);
}
} else {
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
}
}
/*
* create a new list entry for this nport handle and
* add an sa_update index to the list - called for sa_update
*/
static int qla_edif_list_add_sa_update_index(fc_port_t *fcport,
uint16_t sa_index, uint16_t handle)
{
struct edif_list_entry *entry;
unsigned long flags = 0;
/* if the entry exists, then just update the sa_index */
entry = qla_edif_list_find_sa_index(fcport, handle);
if (entry) {
entry->update_sa_index = sa_index;
entry->count = 0;
return 0;
}
/*
* This is the normal path - there should be no existing entry
* when update is called. The exception is at startup
* when update is called for the first two sa_indexes
* followed by a delete of the first sa_index
*/
entry = kzalloc((sizeof(struct edif_list_entry)), GFP_ATOMIC);
if (!entry)
return -ENOMEM;
INIT_LIST_HEAD(&entry->next);
entry->handle = handle;
entry->update_sa_index = sa_index;
entry->delete_sa_index = INVALID_EDIF_SA_INDEX;
entry->count = 0;
entry->flags = 0;
timer_setup(&entry->timer, qla2x00_sa_replace_iocb_timeout, 0);
spin_lock_irqsave(&fcport->edif.indx_list_lock, flags);
list_add_tail(&entry->next, &fcport->edif.edif_indx_list);
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
return 0;
}
/* remove an entry from the list */
static void qla_edif_list_delete_sa_index(fc_port_t *fcport, struct edif_list_entry *entry)
{
unsigned long flags = 0;
spin_lock_irqsave(&fcport->edif.indx_list_lock, flags);
list_del(&entry->next);
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
}
int qla_post_sa_replace_work(struct scsi_qla_host *vha,
fc_port_t *fcport, uint16_t nport_handle, struct edif_sa_ctl *sa_ctl)
{
struct qla_work_evt *e;
e = qla2x00_alloc_work(vha, QLA_EVT_SA_REPLACE);
if (!e)
return QLA_FUNCTION_FAILED;
e->u.sa_update.fcport = fcport;
e->u.sa_update.sa_ctl = sa_ctl;
e->u.sa_update.nport_handle = nport_handle;
fcport->flags |= FCF_ASYNC_ACTIVE;
return qla2x00_post_work(vha, e);
}
static void
qla_edif_sa_ctl_init(scsi_qla_host_t *vha, struct fc_port *fcport)
{
ql_dbg(ql_dbg_edif, vha, 0x2058,
"Init SA_CTL List for fcport - nn %8phN pn %8phN portid=%06x.\n",
fcport->node_name, fcport->port_name, fcport->d_id.b24);
fcport->edif.tx_rekey_cnt = 0;
fcport->edif.rx_rekey_cnt = 0;
fcport->edif.tx_bytes = 0;
fcport->edif.rx_bytes = 0;
}
static int qla_bsg_check(scsi_qla_host_t *vha, struct bsg_job *bsg_job,
fc_port_t *fcport)
{
struct extra_auth_els *p;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct qla_bsg_auth_els_request *req =
(struct qla_bsg_auth_els_request *)bsg_job->request;
if (!vha->hw->flags.edif_enabled) {
ql_dbg(ql_dbg_edif, vha, 0x9105,
"%s edif not enabled\n", __func__);
goto done;
}
if (DBELL_INACTIVE(vha)) {
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s doorbell not enabled\n", __func__);
goto done;
}
p = &req->e;
/* Get response */
if (p->sub_cmd == PULL_ELS) {
struct qla_bsg_auth_els_reply *rpl =
(struct qla_bsg_auth_els_reply *)bsg_job->reply;
qla_pur_get_pending(vha, fcport, bsg_job);
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s %s %8phN sid=%x. xchg %x, nb=%xh bsg ptr %p\n",
__func__, sc_to_str(p->sub_cmd), fcport->port_name,
fcport->d_id.b24, rpl->rx_xchg_address,
rpl->r.reply_payload_rcv_len, bsg_job);
goto done;
}
return 0;
done:
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return -EIO;
}
fc_port_t *
qla2x00_find_fcport_by_pid(scsi_qla_host_t *vha, port_id_t *id)
{
fc_port_t *f, *tf;
f = NULL;
list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
if (f->d_id.b24 == id->b24)
return f;
}
return NULL;
}
/**
* qla_edif_app_check(): check for valid application id.
* @vha: host adapter pointer
* @appid: application id
* Return: false = fail, true = pass
*/
static bool
qla_edif_app_check(scsi_qla_host_t *vha, struct app_id appid)
{
/* check that the app is allow/known to the driver */
if (appid.app_vid != EDIF_APP_ID) {
ql_dbg(ql_dbg_edif, vha, 0x911d, "%s app id not ok (%x)",
__func__, appid.app_vid);
return false;
}
if (appid.version != EDIF_VERSION1) {
ql_dbg(ql_dbg_edif, vha, 0x911d, "%s app version is not ok (%x)",
__func__, appid.version);
return false;
}
return true;
}
static void
qla_edif_free_sa_ctl(fc_port_t *fcport, struct edif_sa_ctl *sa_ctl,
int index)
{
unsigned long flags = 0;
spin_lock_irqsave(&fcport->edif.sa_list_lock, flags);
list_del(&sa_ctl->next);
spin_unlock_irqrestore(&fcport->edif.sa_list_lock, flags);
if (index >= 512)
fcport->edif.tx_rekey_cnt--;
else
fcport->edif.rx_rekey_cnt--;
kfree(sa_ctl);
}
/* return an index to the freepool */
static void qla_edif_add_sa_index_to_freepool(fc_port_t *fcport, int dir,
uint16_t sa_index)
{
void *sa_id_map;
struct scsi_qla_host *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags = 0;
u16 lsa_index = sa_index;
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x3063,
"%s: entry\n", __func__);
if (dir) {
sa_id_map = ha->edif_tx_sa_id_map;
lsa_index -= EDIF_TX_SA_INDEX_BASE;
} else {
sa_id_map = ha->edif_rx_sa_id_map;
}
spin_lock_irqsave(&ha->sadb_fp_lock, flags);
clear_bit(lsa_index, sa_id_map);
spin_unlock_irqrestore(&ha->sadb_fp_lock, flags);
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: index %d added to free pool\n", __func__, sa_index);
}
static void __qla2x00_release_all_sadb(struct scsi_qla_host *vha,
struct fc_port *fcport, struct edif_sa_index_entry *entry,
int pdir)
{
struct edif_list_entry *edif_entry;
struct edif_sa_ctl *sa_ctl;
int i, dir;
int key_cnt = 0;
for (i = 0; i < 2; i++) {
if (entry->sa_pair[i].sa_index == INVALID_EDIF_SA_INDEX)
continue;
if (fcport->loop_id != entry->handle) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: ** WARNING %d** entry handle: 0x%x, lid: 0x%x, sa_index: %d\n",
__func__, i, entry->handle, fcport->loop_id,
entry->sa_pair[i].sa_index);
}
/* release the sa_ctl */
sa_ctl = qla_edif_find_sa_ctl_by_index(fcport,
entry->sa_pair[i].sa_index, pdir);
if (sa_ctl &&
qla_edif_find_sa_ctl_by_index(fcport, sa_ctl->index, pdir)) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: freeing sa_ctl for index %d\n", __func__, sa_ctl->index);
qla_edif_free_sa_ctl(fcport, sa_ctl, sa_ctl->index);
} else {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: sa_ctl NOT freed, sa_ctl: %p\n", __func__, sa_ctl);
}
/* Release the index */
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: freeing sa_index %d, nph: 0x%x\n",
__func__, entry->sa_pair[i].sa_index, entry->handle);
dir = (entry->sa_pair[i].sa_index <
EDIF_TX_SA_INDEX_BASE) ? 0 : 1;
qla_edif_add_sa_index_to_freepool(fcport, dir,
entry->sa_pair[i].sa_index);
/* Delete timer on RX */
if (pdir != SAU_FLG_TX) {
edif_entry =
qla_edif_list_find_sa_index(fcport, entry->handle);
if (edif_entry) {
ql_dbg(ql_dbg_edif, vha, 0x5033,
"%s: remove edif_entry %p, update_sa_index: 0x%x, delete_sa_index: 0x%x\n",
__func__, edif_entry, edif_entry->update_sa_index,
edif_entry->delete_sa_index);
qla_edif_list_delete_sa_index(fcport, edif_entry);
/*
* valid delete_sa_index indicates there is a rx
* delayed delete queued
*/
if (edif_entry->delete_sa_index !=
INVALID_EDIF_SA_INDEX) {
timer_shutdown(&edif_entry->timer);
/* build and send the aen */
fcport->edif.rx_sa_set = 1;
fcport->edif.rx_sa_pending = 0;
qla_edb_eventcreate(vha,
VND_CMD_AUTH_STATE_SAUPDATE_COMPL,
QL_VND_SA_STAT_SUCCESS,
QL_VND_RX_SA_KEY, fcport);
}
ql_dbg(ql_dbg_edif, vha, 0x5033,
"%s: release edif_entry %p, update_sa_index: 0x%x, delete_sa_index: 0x%x\n",
__func__, edif_entry, edif_entry->update_sa_index,
edif_entry->delete_sa_index);
kfree(edif_entry);
}
}
key_cnt++;
}
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: %d %s keys released\n",
__func__, key_cnt, pdir ? "tx" : "rx");
}
/* find an release all outstanding sadb sa_indicies */
void qla2x00_release_all_sadb(struct scsi_qla_host *vha, struct fc_port *fcport)
{
struct edif_sa_index_entry *entry, *tmp;
struct qla_hw_data *ha = vha->hw;
unsigned long flags;
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x3063,
"%s: Starting...\n", __func__);
spin_lock_irqsave(&ha->sadb_lock, flags);
list_for_each_entry_safe(entry, tmp, &ha->sadb_rx_index_list, next) {
if (entry->fcport == fcport) {
list_del(&entry->next);
spin_unlock_irqrestore(&ha->sadb_lock, flags);
__qla2x00_release_all_sadb(vha, fcport, entry, 0);
kfree(entry);
spin_lock_irqsave(&ha->sadb_lock, flags);
break;
}
}
list_for_each_entry_safe(entry, tmp, &ha->sadb_tx_index_list, next) {
if (entry->fcport == fcport) {
list_del(&entry->next);
spin_unlock_irqrestore(&ha->sadb_lock, flags);
__qla2x00_release_all_sadb(vha, fcport, entry, SAU_FLG_TX);
kfree(entry);
spin_lock_irqsave(&ha->sadb_lock, flags);
break;
}
}
spin_unlock_irqrestore(&ha->sadb_lock, flags);
}
/**
* qla_delete_n2n_sess_and_wait: search for N2N session, tear it down and
* wait for tear down to complete. In N2N topology, there is only one
* session being active in tracking the remote device.
* @vha: host adapter pointer
* return code: 0 - found the session and completed the tear down.
* 1 - timeout occurred. Caller to use link bounce to reset.
*/
static int qla_delete_n2n_sess_and_wait(scsi_qla_host_t *vha)
{
struct fc_port *fcport;
int rc = -EIO;
ulong expire = jiffies + 23 * HZ;
if (!N2N_TOPO(vha->hw))
return 0;
fcport = NULL;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (!fcport->n2n_flag)
continue;
ql_dbg(ql_dbg_disc, fcport->vha, 0x2016,
"%s reset sess at app start \n", __func__);
qla_edif_sa_ctl_init(vha, fcport);
qlt_schedule_sess_for_deletion(fcport);
while (time_before_eq(jiffies, expire)) {
if (fcport->disc_state != DSC_DELETE_PEND) {
rc = 0;
break;
}
msleep(1);
}
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
break;
}
return rc;
}
/**
* qla_edif_app_start: application has announce its present
* @vha: host adapter pointer
* @bsg_job: user request
*
* Set/activate doorbell. Reset current sessions and re-login with
* secure flag.
*/
static int
qla_edif_app_start(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
int32_t rval = 0;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct app_start appstart;
struct app_start_reply appreply;
struct fc_port *fcport, *tf;
ql_log(ql_log_info, vha, 0x1313,
"EDIF application registration with driver, FC device connections will be re-established.\n");
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &appstart,
sizeof(struct app_start));
ql_dbg(ql_dbg_edif, vha, 0x911d, "%s app_vid=%x app_start_flags %x\n",
__func__, appstart.app_info.app_vid, appstart.app_start_flags);
if (DBELL_INACTIVE(vha)) {
/* mark doorbell as active since an app is now present */
vha->e_dbell.db_flags |= EDB_ACTIVE;
} else {
goto out;
}
if (N2N_TOPO(vha->hw)) {
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list)
fcport->n2n_link_reset_cnt = 0;
if (vha->hw->flags.n2n_fw_acc_sec) {
bool link_bounce = false;
/*
* While authentication app was not running, remote device
* could still try to login with this local port. Let's
* reset the session, reconnect and re-authenticate.
*/
if (qla_delete_n2n_sess_and_wait(vha))
link_bounce = true;
/* bounce the link to start login */
if (!vha->hw->flags.n2n_bigger || link_bounce) {
set_bit(N2N_LINK_RESET, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
} else {
qla2x00_wait_for_hba_online(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_hba_online(vha);
}
} else {
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
ql_dbg(ql_dbg_edif, vha, 0x2058,
"FCSP - nn %8phN pn %8phN portid=%06x.\n",
fcport->node_name, fcport->port_name,
fcport->d_id.b24);
ql_dbg(ql_dbg_edif, vha, 0xf084,
"%s: se_sess %p / sess %p from port %8phC "
"loop_id %#04x s_id %06x logout %d "
"keep %d els_logo %d disc state %d auth state %d"
"stop state %d\n",
__func__, fcport->se_sess, fcport,
fcport->port_name, fcport->loop_id,
fcport->d_id.b24, fcport->logout_on_delete,
fcport->keep_nport_handle, fcport->send_els_logo,
fcport->disc_state, fcport->edif.auth_state,
fcport->edif.app_stop);
if (atomic_read(&vha->loop_state) == LOOP_DOWN)
break;
fcport->login_retry = vha->hw->login_retry_count;
fcport->edif.app_stop = 0;
fcport->edif.app_sess_online = 0;
if (fcport->scan_state != QLA_FCPORT_FOUND)
continue;
if (fcport->port_type == FCT_UNKNOWN &&
!fcport->fc4_features)
rval = qla24xx_async_gffid(vha, fcport, true);
if (!rval && !(fcport->fc4_features & FC4_FF_TARGET ||
fcport->port_type & (FCT_TARGET|FCT_NVME_TARGET)))
continue;
rval = 0;
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s wwpn %8phC calling qla_edif_reset_auth_wait\n",
__func__, fcport->port_name);
qlt_schedule_sess_for_deletion(fcport);
qla_edif_sa_ctl_init(vha, fcport);
}
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
}
if (vha->pur_cinfo.enode_flags != ENODE_ACTIVE) {
/* mark as active since an app is now present */
vha->pur_cinfo.enode_flags = ENODE_ACTIVE;
} else {
ql_dbg(ql_dbg_edif, vha, 0x911f, "%s enode already active\n",
__func__);
}
out:
appreply.host_support_edif = vha->hw->flags.edif_enabled;
appreply.edif_enode_active = vha->pur_cinfo.enode_flags;
appreply.edif_edb_active = vha->e_dbell.db_flags;
appreply.version = EDIF_VERSION1;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
SET_DID_STATUS(bsg_reply->result, DID_OK);
bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
&appreply,
sizeof(struct app_start_reply));
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s app start completed with 0x%x\n",
__func__, rval);
return rval;
}
/**
* qla_edif_app_stop - app has announced it's exiting.
* @vha: host adapter pointer
* @bsg_job: user space command pointer
*
* Free any in flight messages, clear all doorbell events
* to application. Reject any message relate to security.
*/
static int
qla_edif_app_stop(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
struct app_stop appstop;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct fc_port *fcport, *tf;
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &appstop,
sizeof(struct app_stop));
ql_dbg(ql_dbg_edif, vha, 0x911d, "%s Stopping APP: app_vid=%x\n",
__func__, appstop.app_info.app_vid);
/* Call db stop and enode stop functions */
/* if we leave this running short waits are operational < 16 secs */
qla_enode_stop(vha); /* stop enode */
qla_edb_stop(vha); /* stop db */
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
if (!(fcport->flags & FCF_FCSP_DEVICE))
continue;
if (fcport->flags & FCF_FCSP_DEVICE) {
ql_dbg(ql_dbg_edif, vha, 0xf084,
"%s: sess %p from port %8phC lid %#04x s_id %06x logout %d keep %d els_logo %d\n",
__func__, fcport,
fcport->port_name, fcport->loop_id, fcport->d_id.b24,
fcport->logout_on_delete, fcport->keep_nport_handle,
fcport->send_els_logo);
if (atomic_read(&vha->loop_state) == LOOP_DOWN)
break;
fcport->edif.app_stop = 1;
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s wwpn %8phC calling qla_edif_reset_auth_wait\n",
__func__, fcport->port_name);
fcport->send_els_logo = 1;
qlt_schedule_sess_for_deletion(fcport);
}
}
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
SET_DID_STATUS(bsg_reply->result, DID_OK);
/* no return interface to app - it assumes we cleaned up ok */
return 0;
}
static int
qla_edif_app_chk_sa_update(scsi_qla_host_t *vha, fc_port_t *fcport,
struct app_plogi_reply *appplogireply)
{
int ret = 0;
if (!(fcport->edif.rx_sa_set && fcport->edif.tx_sa_set)) {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s: wwpn %8phC Both SA indexes has not been SET TX %d, RX %d.\n",
__func__, fcport->port_name, fcport->edif.tx_sa_set,
fcport->edif.rx_sa_set);
appplogireply->prli_status = 0;
ret = 1;
} else {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s wwpn %8phC Both SA(s) updated.\n", __func__,
fcport->port_name);
fcport->edif.rx_sa_set = fcport->edif.tx_sa_set = 0;
fcport->edif.rx_sa_pending = fcport->edif.tx_sa_pending = 0;
appplogireply->prli_status = 1;
}
return ret;
}
/**
* qla_edif_app_authok - authentication by app succeeded. Driver can proceed
* with prli
* @vha: host adapter pointer
* @bsg_job: user request
*/
static int
qla_edif_app_authok(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
struct auth_complete_cmd appplogiok;
struct app_plogi_reply appplogireply = {0};
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
fc_port_t *fcport = NULL;
port_id_t portid = {0};
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &appplogiok,
sizeof(struct auth_complete_cmd));
/* silent unaligned access warning */
portid.b.domain = appplogiok.u.d_id.b.domain;
portid.b.area = appplogiok.u.d_id.b.area;
portid.b.al_pa = appplogiok.u.d_id.b.al_pa;
appplogireply.version = EDIF_VERSION1;
switch (appplogiok.type) {
case PL_TYPE_WWPN:
fcport = qla2x00_find_fcport_by_wwpn(vha,
appplogiok.u.wwpn, 0);
if (!fcport)
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s wwpn lookup failed: %8phC\n",
__func__, appplogiok.u.wwpn);
break;
case PL_TYPE_DID:
fcport = qla2x00_find_fcport_by_pid(vha, &portid);
if (!fcport)
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s d_id lookup failed: %x\n", __func__,
portid.b24);
break;
default:
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s undefined type: %x\n", __func__,
appplogiok.type);
break;
}
if (!fcport) {
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
goto errstate_exit;
}
/*
* if port is online then this is a REKEY operation
* Only do sa update checking
*/
if (atomic_read(&fcport->state) == FCS_ONLINE) {
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s Skipping PRLI complete based on rekey\n", __func__);
appplogireply.prli_status = 1;
SET_DID_STATUS(bsg_reply->result, DID_OK);
qla_edif_app_chk_sa_update(vha, fcport, &appplogireply);
goto errstate_exit;
}
/* make sure in AUTH_PENDING or else reject */
if (fcport->disc_state != DSC_LOGIN_AUTH_PEND) {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s wwpn %8phC is not in auth pending state (%x)\n",
__func__, fcport->port_name, fcport->disc_state);
SET_DID_STATUS(bsg_reply->result, DID_OK);
appplogireply.prli_status = 0;
goto errstate_exit;
}
SET_DID_STATUS(bsg_reply->result, DID_OK);
appplogireply.prli_status = 1;
fcport->edif.authok = 1;
if (!(fcport->edif.rx_sa_set && fcport->edif.tx_sa_set)) {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s: wwpn %8phC Both SA indexes has not been SET TX %d, RX %d.\n",
__func__, fcport->port_name, fcport->edif.tx_sa_set,
fcport->edif.rx_sa_set);
SET_DID_STATUS(bsg_reply->result, DID_OK);
appplogireply.prli_status = 0;
goto errstate_exit;
} else {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s wwpn %8phC Both SA(s) updated.\n", __func__,
fcport->port_name);
fcport->edif.rx_sa_set = fcport->edif.tx_sa_set = 0;
fcport->edif.rx_sa_pending = fcport->edif.tx_sa_pending = 0;
}
if (qla_ini_mode_enabled(vha)) {
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s AUTH complete - RESUME with prli for wwpn %8phC\n",
__func__, fcport->port_name);
qla24xx_post_prli_work(vha, fcport);
}
errstate_exit:
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
&appplogireply,
sizeof(struct app_plogi_reply));
return 0;
}
/**
* qla_edif_app_authfail - authentication by app has failed. Driver is given
* notice to tear down current session.
* @vha: host adapter pointer
* @bsg_job: user request
*/
static int
qla_edif_app_authfail(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
int32_t rval = 0;
struct auth_complete_cmd appplogifail;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
fc_port_t *fcport = NULL;
port_id_t portid = {0};
ql_dbg(ql_dbg_edif, vha, 0x911d, "%s app auth fail\n", __func__);
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &appplogifail,
sizeof(struct auth_complete_cmd));
/* silent unaligned access warning */
portid.b.domain = appplogifail.u.d_id.b.domain;
portid.b.area = appplogifail.u.d_id.b.area;
portid.b.al_pa = appplogifail.u.d_id.b.al_pa;
/*
* TODO: edif: app has failed this plogi. Inform driver to
* take any action (if any).
*/
switch (appplogifail.type) {
case PL_TYPE_WWPN:
fcport = qla2x00_find_fcport_by_wwpn(vha,
appplogifail.u.wwpn, 0);
SET_DID_STATUS(bsg_reply->result, DID_OK);
break;
case PL_TYPE_DID:
fcport = qla2x00_find_fcport_by_pid(vha, &portid);
if (!fcport)
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s d_id lookup failed: %x\n", __func__,
portid.b24);
SET_DID_STATUS(bsg_reply->result, DID_OK);
break;
default:
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s undefined type: %x\n", __func__,
appplogifail.type);
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
rval = -1;
break;
}
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s fcport is 0x%p\n", __func__, fcport);
if (fcport) {
/* set/reset edif values and flags */
ql_dbg(ql_dbg_edif, vha, 0x911e,
"%s reset the auth process - %8phC, loopid=%x portid=%06x.\n",
__func__, fcport->port_name, fcport->loop_id, fcport->d_id.b24);
if (qla_ini_mode_enabled(fcport->vha)) {
fcport->send_els_logo = 1;
qlt_schedule_sess_for_deletion(fcport);
}
}
return rval;
}
/**
* qla_edif_app_getfcinfo - app would like to read session info (wwpn, nportid,
* [initiator|target] mode. It can specific session with specific nport id or
* all sessions.
* @vha: host adapter pointer
* @bsg_job: user request pointer
*/
static int
qla_edif_app_getfcinfo(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
int32_t rval = 0;
int32_t pcnt = 0;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct app_pinfo_req app_req;
struct app_pinfo_reply *app_reply;
port_id_t tdid;
ql_dbg(ql_dbg_edif, vha, 0x911d, "%s app get fcinfo\n", __func__);
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &app_req,
sizeof(struct app_pinfo_req));
app_reply = kzalloc((sizeof(struct app_pinfo_reply) +
sizeof(struct app_pinfo) * app_req.num_ports), GFP_KERNEL);
if (!app_reply) {
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
rval = -1;
} else {
struct fc_port *fcport = NULL, *tf;
app_reply->version = EDIF_VERSION1;
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
if (!(fcport->flags & FCF_FCSP_DEVICE))
continue;
tdid.b.domain = app_req.remote_pid.domain;
tdid.b.area = app_req.remote_pid.area;
tdid.b.al_pa = app_req.remote_pid.al_pa;
ql_dbg(ql_dbg_edif, vha, 0x2058,
"APP request entry - portid=%06x.\n", tdid.b24);
/* Ran out of space */
if (pcnt >= app_req.num_ports)
break;
if (tdid.b24 != 0 && tdid.b24 != fcport->d_id.b24)
continue;
if (!N2N_TOPO(vha->hw)) {
if (fcport->scan_state != QLA_FCPORT_FOUND)
continue;
if (fcport->port_type == FCT_UNKNOWN &&
!fcport->fc4_features)
rval = qla24xx_async_gffid(vha, fcport,
true);
if (!rval &&
!(fcport->fc4_features & FC4_FF_TARGET ||
fcport->port_type &
(FCT_TARGET | FCT_NVME_TARGET)))
continue;
}
rval = 0;
app_reply->ports[pcnt].version = EDIF_VERSION1;
app_reply->ports[pcnt].remote_type =
VND_CMD_RTYPE_UNKNOWN;
if (fcport->port_type & (FCT_NVME_TARGET | FCT_TARGET))
app_reply->ports[pcnt].remote_type |=
VND_CMD_RTYPE_TARGET;
if (fcport->port_type & (FCT_NVME_INITIATOR | FCT_INITIATOR))
app_reply->ports[pcnt].remote_type |=
VND_CMD_RTYPE_INITIATOR;
app_reply->ports[pcnt].remote_pid = fcport->d_id;
ql_dbg(ql_dbg_edif, vha, 0x2058,
"Found FC_SP fcport - nn %8phN pn %8phN pcnt %d portid=%06x secure %d.\n",
fcport->node_name, fcport->port_name, pcnt,
fcport->d_id.b24, fcport->flags & FCF_FCSP_DEVICE);
switch (fcport->edif.auth_state) {
case VND_CMD_AUTH_STATE_ELS_RCVD:
if (fcport->disc_state == DSC_LOGIN_AUTH_PEND) {
fcport->edif.auth_state = VND_CMD_AUTH_STATE_NEEDED;
app_reply->ports[pcnt].auth_state =
VND_CMD_AUTH_STATE_NEEDED;
} else {
app_reply->ports[pcnt].auth_state =
VND_CMD_AUTH_STATE_ELS_RCVD;
}
break;
default:
app_reply->ports[pcnt].auth_state = fcport->edif.auth_state;
break;
}
memcpy(app_reply->ports[pcnt].remote_wwpn,
fcport->port_name, 8);
app_reply->ports[pcnt].remote_state =
(atomic_read(&fcport->state) ==
FCS_ONLINE ? 1 : 0);
pcnt++;
if (tdid.b24 != 0)
break;
}
app_reply->port_count = pcnt;
SET_DID_STATUS(bsg_reply->result, DID_OK);
}
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
app_reply,
sizeof(struct app_pinfo_reply) + sizeof(struct app_pinfo) * pcnt);
kfree(app_reply);
return rval;
}
/**
* qla_edif_app_getstats - app would like to read various statistics info
* @vha: host adapter pointer
* @bsg_job: user request
*/
static int32_t
qla_edif_app_getstats(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
int32_t rval = 0;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
uint32_t size;
struct app_sinfo_req app_req;
struct app_stats_reply *app_reply;
uint32_t pcnt = 0;
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &app_req,
sizeof(struct app_sinfo_req));
if (app_req.num_ports == 0) {
ql_dbg(ql_dbg_async, vha, 0x911d,
"%s app did not indicate number of ports to return\n",
__func__);
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
rval = -1;
}
size = sizeof(struct app_stats_reply) +
(sizeof(struct app_sinfo) * app_req.num_ports);
app_reply = kzalloc(size, GFP_KERNEL);
if (!app_reply) {
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
rval = -1;
} else {
struct fc_port *fcport = NULL, *tf;
app_reply->version = EDIF_VERSION1;
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
if (fcport->edif.enable) {
if (pcnt > app_req.num_ports)
break;
app_reply->elem[pcnt].rekey_count =
fcport->edif.rekey_cnt;
app_reply->elem[pcnt].tx_bytes =
fcport->edif.tx_bytes;
app_reply->elem[pcnt].rx_bytes =
fcport->edif.rx_bytes;
memcpy(app_reply->elem[pcnt].remote_wwpn,
fcport->port_name, 8);
pcnt++;
}
}
app_reply->elem_count = pcnt;
SET_DID_STATUS(bsg_reply->result, DID_OK);
}
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, app_reply,
sizeof(struct app_stats_reply) + (sizeof(struct app_sinfo) * pcnt));
kfree(app_reply);
return rval;
}
static int32_t
qla_edif_ack(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
struct fc_port *fcport;
struct aen_complete_cmd ack;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &ack, sizeof(ack));
ql_dbg(ql_dbg_edif, vha, 0x70cf,
"%s: %06x event_code %x\n",
__func__, ack.port_id.b24, ack.event_code);
fcport = qla2x00_find_fcport_by_pid(vha, &ack.port_id);
SET_DID_STATUS(bsg_reply->result, DID_OK);
if (!fcport) {
ql_dbg(ql_dbg_edif, vha, 0x70cf,
"%s: unable to find fcport %06x \n",
__func__, ack.port_id.b24);
return 0;
}
switch (ack.event_code) {
case VND_CMD_AUTH_STATE_SESSION_SHUTDOWN:
fcport->edif.sess_down_acked = 1;
break;
default:
break;
}
return 0;
}
static int qla_edif_consume_dbell(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
u32 sg_skip, reply_payload_len;
bool keep;
struct edb_node *dbnode = NULL;
struct edif_app_dbell ap;
int dat_size = 0;
sg_skip = 0;
reply_payload_len = bsg_job->reply_payload.payload_len;
while ((reply_payload_len - sg_skip) >= sizeof(struct edb_node)) {
dbnode = qla_edb_getnext(vha);
if (dbnode) {
keep = true;
dat_size = 0;
ap.event_code = dbnode->ntype;
switch (dbnode->ntype) {
case VND_CMD_AUTH_STATE_SESSION_SHUTDOWN:
case VND_CMD_AUTH_STATE_NEEDED:
ap.port_id = dbnode->u.plogi_did;
dat_size += sizeof(ap.port_id);
break;
case VND_CMD_AUTH_STATE_ELS_RCVD:
ap.port_id = dbnode->u.els_sid;
dat_size += sizeof(ap.port_id);
break;
case VND_CMD_AUTH_STATE_SAUPDATE_COMPL:
ap.port_id = dbnode->u.sa_aen.port_id;
memcpy(&ap.event_data, &dbnode->u,
sizeof(struct edif_sa_update_aen));
dat_size += sizeof(struct edif_sa_update_aen);
break;
default:
keep = false;
ql_log(ql_log_warn, vha, 0x09102,
"%s unknown DB type=%d %p\n",
__func__, dbnode->ntype, dbnode);
break;
}
ap.event_data_size = dat_size;
/* 8 = sizeof(ap.event_code + ap.event_data_size) */
dat_size += 8;
if (keep)
sg_skip += sg_copy_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
&ap, dat_size, sg_skip, false);
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s Doorbell consumed : type=%d %p\n",
__func__, dbnode->ntype, dbnode);
kfree(dbnode);
} else {
break;
}
}
SET_DID_STATUS(bsg_reply->result, DID_OK);
bsg_reply->reply_payload_rcv_len = sg_skip;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
return 0;
}
static void __qla_edif_dbell_bsg_done(scsi_qla_host_t *vha, struct bsg_job *bsg_job,
u32 delay)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
/* small sleep for doorbell events to accumulate */
if (delay)
msleep(delay);
qla_edif_consume_dbell(vha, bsg_job);
bsg_job_done(bsg_job, bsg_reply->result, bsg_reply->reply_payload_rcv_len);
}
static void qla_edif_dbell_bsg_done(scsi_qla_host_t *vha)
{
unsigned long flags;
struct bsg_job *prev_bsg_job = NULL;
spin_lock_irqsave(&vha->e_dbell.db_lock, flags);
if (vha->e_dbell.dbell_bsg_job) {
prev_bsg_job = vha->e_dbell.dbell_bsg_job;
vha->e_dbell.dbell_bsg_job = NULL;
}
spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags);
if (prev_bsg_job)
__qla_edif_dbell_bsg_done(vha, prev_bsg_job, 0);
}
static int
qla_edif_dbell_bsg(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
unsigned long flags;
bool return_bsg = false;
/* flush previous dbell bsg */
qla_edif_dbell_bsg_done(vha);
spin_lock_irqsave(&vha->e_dbell.db_lock, flags);
if (list_empty(&vha->e_dbell.head) && DBELL_ACTIVE(vha)) {
/*
* when the next db event happens, bsg_job will return.
* Otherwise, timer will return it.
*/
vha->e_dbell.dbell_bsg_job = bsg_job;
vha->e_dbell.bsg_expire = jiffies + 10 * HZ;
} else {
return_bsg = true;
}
spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags);
if (return_bsg)
__qla_edif_dbell_bsg_done(vha, bsg_job, 1);
return 0;
}
int32_t
qla_edif_app_mgmt(struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
struct app_id appcheck;
bool done = true;
int32_t rval = 0;
uint32_t vnd_sc = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
u32 level = ql_dbg_edif;
/* doorbell is high traffic */
if (vnd_sc == QL_VND_SC_READ_DBELL)
level = 0;
ql_dbg(level, vha, 0x911d, "%s vnd subcmd=%x\n",
__func__, vnd_sc);
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &appcheck,
sizeof(struct app_id));
if (!vha->hw->flags.edif_enabled ||
test_bit(VPORT_DELETE, &vha->dpc_flags)) {
ql_dbg(level, vha, 0x911d,
"%s edif not enabled or vp delete. bsg ptr done %p. dpc_flags %lx\n",
__func__, bsg_job, vha->dpc_flags);
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
goto done;
}
if (!qla_edif_app_check(vha, appcheck)) {
ql_dbg(level, vha, 0x911d,
"%s app checked failed.\n",
__func__);
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
goto done;
}
switch (vnd_sc) {
case QL_VND_SC_SA_UPDATE:
done = false;
rval = qla24xx_sadb_update(bsg_job);
break;
case QL_VND_SC_APP_START:
rval = qla_edif_app_start(vha, bsg_job);
break;
case QL_VND_SC_APP_STOP:
rval = qla_edif_app_stop(vha, bsg_job);
break;
case QL_VND_SC_AUTH_OK:
rval = qla_edif_app_authok(vha, bsg_job);
break;
case QL_VND_SC_AUTH_FAIL:
rval = qla_edif_app_authfail(vha, bsg_job);
break;
case QL_VND_SC_GET_FCINFO:
rval = qla_edif_app_getfcinfo(vha, bsg_job);
break;
case QL_VND_SC_GET_STATS:
rval = qla_edif_app_getstats(vha, bsg_job);
break;
case QL_VND_SC_AEN_COMPLETE:
rval = qla_edif_ack(vha, bsg_job);
break;
case QL_VND_SC_READ_DBELL:
rval = qla_edif_dbell_bsg(vha, bsg_job);
done = false;
break;
default:
ql_dbg(ql_dbg_edif, vha, 0x911d, "%s unknown cmd=%x\n",
__func__,
bsg_request->rqst_data.h_vendor.vendor_cmd[1]);
rval = EXT_STATUS_INVALID_PARAM;
done = false;
break;
}
done:
if (done) {
ql_dbg(level, vha, 0x7009,
"%s: %d bsg ptr done %p\n", __func__, __LINE__, bsg_job);
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return rval;
}
static struct edif_sa_ctl *
qla_edif_add_sa_ctl(fc_port_t *fcport, struct qla_sa_update_frame *sa_frame,
int dir)
{
struct edif_sa_ctl *sa_ctl;
struct qla_sa_update_frame *sap;
int index = sa_frame->fast_sa_index;
unsigned long flags = 0;
sa_ctl = kzalloc(sizeof(*sa_ctl), GFP_KERNEL);
if (!sa_ctl) {
/* couldn't get space */
ql_dbg(ql_dbg_edif, fcport->vha, 0x9100,
"unable to allocate SA CTL\n");
return NULL;
}
/*
* need to allocate sa_index here and save it
* in both sa_ctl->index and sa_frame->fast_sa_index;
* If alloc fails then delete sa_ctl and return NULL
*/
INIT_LIST_HEAD(&sa_ctl->next);
sap = &sa_ctl->sa_frame;
*sap = *sa_frame;
sa_ctl->index = index;
sa_ctl->fcport = fcport;
sa_ctl->flags = 0;
sa_ctl->state = 0L;
ql_dbg(ql_dbg_edif, fcport->vha, 0x9100,
"%s: Added sa_ctl %p, index %d, state 0x%lx\n",
__func__, sa_ctl, sa_ctl->index, sa_ctl->state);
spin_lock_irqsave(&fcport->edif.sa_list_lock, flags);
if (dir == SAU_FLG_TX)
list_add_tail(&sa_ctl->next, &fcport->edif.tx_sa_list);
else
list_add_tail(&sa_ctl->next, &fcport->edif.rx_sa_list);
spin_unlock_irqrestore(&fcport->edif.sa_list_lock, flags);
return sa_ctl;
}
void
qla_edif_flush_sa_ctl_lists(fc_port_t *fcport)
{
struct edif_sa_ctl *sa_ctl, *tsa_ctl;
unsigned long flags = 0;
spin_lock_irqsave(&fcport->edif.sa_list_lock, flags);
list_for_each_entry_safe(sa_ctl, tsa_ctl, &fcport->edif.tx_sa_list,
next) {
list_del(&sa_ctl->next);
kfree(sa_ctl);
}
list_for_each_entry_safe(sa_ctl, tsa_ctl, &fcport->edif.rx_sa_list,
next) {
list_del(&sa_ctl->next);
kfree(sa_ctl);
}
spin_unlock_irqrestore(&fcport->edif.sa_list_lock, flags);
}
struct edif_sa_ctl *
qla_edif_find_sa_ctl_by_index(fc_port_t *fcport, int index, int dir)
{
struct edif_sa_ctl *sa_ctl, *tsa_ctl;
struct list_head *sa_list;
if (dir == SAU_FLG_TX)
sa_list = &fcport->edif.tx_sa_list;
else
sa_list = &fcport->edif.rx_sa_list;
list_for_each_entry_safe(sa_ctl, tsa_ctl, sa_list, next) {
if (test_bit(EDIF_SA_CTL_USED, &sa_ctl->state) &&
sa_ctl->index == index)
return sa_ctl;
}
return NULL;
}
/* add the sa to the correct list */
static int
qla24xx_check_sadb_avail_slot(struct bsg_job *bsg_job, fc_port_t *fcport,
struct qla_sa_update_frame *sa_frame)
{
struct edif_sa_ctl *sa_ctl = NULL;
int dir;
uint16_t sa_index;
dir = (sa_frame->flags & SAU_FLG_TX);
/* map the spi to an sa_index */
sa_index = qla_edif_sadb_get_sa_index(fcport, sa_frame);
if (sa_index == RX_DELETE_NO_EDIF_SA_INDEX) {
/* process rx delete */
ql_dbg(ql_dbg_edif, fcport->vha, 0x3063,
"%s: rx delete for lid 0x%x, spi 0x%x, no entry found\n",
__func__, fcport->loop_id, sa_frame->spi);
/* build and send the aen */
fcport->edif.rx_sa_set = 1;
fcport->edif.rx_sa_pending = 0;
qla_edb_eventcreate(fcport->vha,
VND_CMD_AUTH_STATE_SAUPDATE_COMPL,
QL_VND_SA_STAT_SUCCESS,
QL_VND_RX_SA_KEY, fcport);
/* force a return of good bsg status; */
return RX_DELETE_NO_EDIF_SA_INDEX;
} else if (sa_index == INVALID_EDIF_SA_INDEX) {
ql_dbg(ql_dbg_edif, fcport->vha, 0x9100,
"%s: Failed to get sa_index for spi 0x%x, dir: %d\n",
__func__, sa_frame->spi, dir);
return INVALID_EDIF_SA_INDEX;
}
ql_dbg(ql_dbg_edif, fcport->vha, 0x9100,
"%s: index %d allocated to spi 0x%x, dir: %d, nport_handle: 0x%x\n",
__func__, sa_index, sa_frame->spi, dir, fcport->loop_id);
/* This is a local copy of sa_frame. */
sa_frame->fast_sa_index = sa_index;
/* create the sa_ctl */
sa_ctl = qla_edif_add_sa_ctl(fcport, sa_frame, dir);
if (!sa_ctl) {
ql_dbg(ql_dbg_edif, fcport->vha, 0x9100,
"%s: Failed to add sa_ctl for spi 0x%x, dir: %d, sa_index: %d\n",
__func__, sa_frame->spi, dir, sa_index);
return -1;
}
set_bit(EDIF_SA_CTL_USED, &sa_ctl->state);
if (dir == SAU_FLG_TX)
fcport->edif.tx_rekey_cnt++;
else
fcport->edif.rx_rekey_cnt++;
ql_dbg(ql_dbg_edif, fcport->vha, 0x9100,
"%s: Found sa_ctl %p, index %d, state 0x%lx, tx_cnt %d, rx_cnt %d, nport_handle: 0x%x\n",
__func__, sa_ctl, sa_ctl->index, sa_ctl->state,
fcport->edif.tx_rekey_cnt,
fcport->edif.rx_rekey_cnt, fcport->loop_id);
return 0;
}
#define QLA_SA_UPDATE_FLAGS_RX_KEY 0x0
#define QLA_SA_UPDATE_FLAGS_TX_KEY 0x2
#define EDIF_MSLEEP_INTERVAL 100
#define EDIF_RETRY_COUNT 50
int
qla24xx_sadb_update(struct bsg_job *bsg_job)
{
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct Scsi_Host *host = fc_bsg_to_shost(bsg_job);
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport = NULL;
srb_t *sp = NULL;
struct edif_list_entry *edif_entry = NULL;
int found = 0;
int rval = 0;
int result = 0, cnt;
struct qla_sa_update_frame sa_frame;
struct srb_iocb *iocb_cmd;
port_id_t portid;
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x911d,
"%s entered, vha: 0x%p\n", __func__, vha);
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, &sa_frame,
sizeof(struct qla_sa_update_frame));
/* Check if host is online */
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x70a1, "Host is not online\n");
rval = -EIO;
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
goto done;
}
if (DBELL_INACTIVE(vha)) {
ql_log(ql_log_warn, vha, 0x70a1, "App not started\n");
rval = -EIO;
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
goto done;
}
/* silent unaligned access warning */
portid.b.domain = sa_frame.port_id.b.domain;
portid.b.area = sa_frame.port_id.b.area;
portid.b.al_pa = sa_frame.port_id.b.al_pa;
fcport = qla2x00_find_fcport_by_pid(vha, &portid);
if (fcport) {
found = 1;
if (sa_frame.flags == QLA_SA_UPDATE_FLAGS_TX_KEY)
fcport->edif.tx_bytes = 0;
if (sa_frame.flags == QLA_SA_UPDATE_FLAGS_RX_KEY)
fcport->edif.rx_bytes = 0;
}
if (!found) {
ql_dbg(ql_dbg_edif, vha, 0x70a3, "Failed to find port= %06x\n",
sa_frame.port_id.b24);
rval = -EINVAL;
SET_DID_STATUS(bsg_reply->result, DID_NO_CONNECT);
goto done;
}
/* make sure the nport_handle is valid */
if (fcport->loop_id == FC_NO_LOOP_ID) {
ql_dbg(ql_dbg_edif, vha, 0x70e1,
"%s: %8phN lid=FC_NO_LOOP_ID, spi: 0x%x, DS %d, returning NO_CONNECT\n",
__func__, fcport->port_name, sa_frame.spi,
fcport->disc_state);
rval = -EINVAL;
SET_DID_STATUS(bsg_reply->result, DID_NO_CONNECT);
goto done;
}
/* allocate and queue an sa_ctl */
result = qla24xx_check_sadb_avail_slot(bsg_job, fcport, &sa_frame);
/* failure of bsg */
if (result == INVALID_EDIF_SA_INDEX) {
ql_dbg(ql_dbg_edif, vha, 0x70e1,
"%s: %8phN, skipping update.\n",
__func__, fcport->port_name);
rval = -EINVAL;
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
goto done;
/* rx delete failure */
} else if (result == RX_DELETE_NO_EDIF_SA_INDEX) {
ql_dbg(ql_dbg_edif, vha, 0x70e1,
"%s: %8phN, skipping rx delete.\n",
__func__, fcport->port_name);
SET_DID_STATUS(bsg_reply->result, DID_OK);
goto done;
}
ql_dbg(ql_dbg_edif, vha, 0x70e1,
"%s: %8phN, sa_index in sa_frame: %d flags %xh\n",
__func__, fcport->port_name, sa_frame.fast_sa_index,
sa_frame.flags);
/* looking for rx index and delete */
if (((sa_frame.flags & SAU_FLG_TX) == 0) &&
(sa_frame.flags & SAU_FLG_INV)) {
uint16_t nport_handle = fcport->loop_id;
uint16_t sa_index = sa_frame.fast_sa_index;
/*
* make sure we have an existing rx key, otherwise just process
* this as a straight delete just like TX
* This is NOT a normal case, it indicates an error recovery or key cleanup
* by the ipsec code above us.
*/
edif_entry = qla_edif_list_find_sa_index(fcport, fcport->loop_id);
if (!edif_entry) {
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: WARNING: no active sa_index for nport_handle 0x%x, forcing delete for sa_index 0x%x\n",
__func__, fcport->loop_id, sa_index);
goto force_rx_delete;
}
/*
* if we have a forced delete for rx, remove the sa_index from the edif list
* and proceed with normal delete. The rx delay timer should not be running
*/
if ((sa_frame.flags & SAU_FLG_FORCE_DELETE) == SAU_FLG_FORCE_DELETE) {
qla_edif_list_delete_sa_index(fcport, edif_entry);
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: FORCE DELETE flag found for nport_handle 0x%x, sa_index 0x%x, forcing DELETE\n",
__func__, fcport->loop_id, sa_index);
kfree(edif_entry);
goto force_rx_delete;
}
/*
* delayed rx delete
*
* if delete_sa_index is not invalid then there is already
* a delayed index in progress, return bsg bad status
*/
if (edif_entry->delete_sa_index != INVALID_EDIF_SA_INDEX) {
struct edif_sa_ctl *sa_ctl;
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: delete for lid 0x%x, delete_sa_index %d is pending\n",
__func__, edif_entry->handle, edif_entry->delete_sa_index);
/* free up the sa_ctl that was allocated with the sa_index */
sa_ctl = qla_edif_find_sa_ctl_by_index(fcport, sa_index,
(sa_frame.flags & SAU_FLG_TX));
if (sa_ctl) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: freeing sa_ctl for index %d\n",
__func__, sa_ctl->index);
qla_edif_free_sa_ctl(fcport, sa_ctl, sa_ctl->index);
}
/* release the sa_index */
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: freeing sa_index %d, nph: 0x%x\n",
__func__, sa_index, nport_handle);
qla_edif_sadb_delete_sa_index(fcport, nport_handle, sa_index);
rval = -EINVAL;
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
goto done;
}
fcport->edif.rekey_cnt++;
/* configure and start the rx delay timer */
edif_entry->fcport = fcport;
edif_entry->timer.expires = jiffies + RX_DELAY_DELETE_TIMEOUT * HZ;
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: adding timer, entry: %p, delete sa_index %d, lid 0x%x to edif_list\n",
__func__, edif_entry, sa_index, nport_handle);
/*
* Start the timer when we queue the delayed rx delete.
* This is an activity timer that goes off if we have not
* received packets with the new sa_index
*/
add_timer(&edif_entry->timer);
/*
* sa_delete for rx key with an active rx key including this one
* add the delete rx sa index to the hash so we can look for it
* in the rsp queue. Do this after making any changes to the
* edif_entry as part of the rx delete.
*/
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: delete sa_index %d, lid 0x%x to edif_list. bsg done ptr %p\n",
__func__, sa_index, nport_handle, bsg_job);
edif_entry->delete_sa_index = sa_index;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
bsg_reply->result = DID_OK << 16;
goto done;
/*
* rx index and update
* add the index to the list and continue with normal update
*/
} else if (((sa_frame.flags & SAU_FLG_TX) == 0) &&
((sa_frame.flags & SAU_FLG_INV) == 0)) {
/* sa_update for rx key */
uint32_t nport_handle = fcport->loop_id;
uint16_t sa_index = sa_frame.fast_sa_index;
int result;
/*
* add the update rx sa index to the hash so we can look for it
* in the rsp queue and continue normally
*/
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: adding update sa_index %d, lid 0x%x to edif_list\n",
__func__, sa_index, nport_handle);
result = qla_edif_list_add_sa_update_index(fcport, sa_index,
nport_handle);
if (result) {
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: SA_UPDATE failed to add new sa index %d to list for lid 0x%x\n",
__func__, sa_index, nport_handle);
}
}
if (sa_frame.flags & SAU_FLG_GMAC_MODE)
fcport->edif.aes_gmac = 1;
else
fcport->edif.aes_gmac = 0;
force_rx_delete:
/*
* sa_update for both rx and tx keys, sa_delete for tx key
* immediately process the request
*/
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp) {
rval = -ENOMEM;
SET_DID_STATUS(bsg_reply->result, DID_IMM_RETRY);
goto done;
}
sp->type = SRB_SA_UPDATE;
sp->name = "bsg_sa_update";
sp->u.bsg_job = bsg_job;
/* sp->free = qla2x00_bsg_sp_free; */
sp->free = qla2x00_rel_sp;
sp->done = qla2x00_bsg_job_done;
iocb_cmd = &sp->u.iocb_cmd;
iocb_cmd->u.sa_update.sa_frame = sa_frame;
cnt = 0;
retry:
rval = qla2x00_start_sp(sp);
switch (rval) {
case QLA_SUCCESS:
break;
case EAGAIN:
msleep(EDIF_MSLEEP_INTERVAL);
cnt++;
if (cnt < EDIF_RETRY_COUNT)
goto retry;
fallthrough;
default:
ql_log(ql_dbg_edif, vha, 0x70e3,
"%s qla2x00_start_sp failed=%d.\n",
__func__, rval);
qla2x00_rel_sp(sp);
rval = -EIO;
SET_DID_STATUS(bsg_reply->result, DID_IMM_RETRY);
goto done;
}
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: %s sent, hdl=%x, portid=%06x.\n",
__func__, sp->name, sp->handle, fcport->d_id.b24);
fcport->edif.rekey_cnt++;
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
SET_DID_STATUS(bsg_reply->result, DID_OK);
return 0;
/*
* send back error status
*/
done:
bsg_job->reply_len = sizeof(struct fc_bsg_reply);
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s:status: FAIL, result: 0x%x, bsg ptr done %p\n",
__func__, bsg_reply->result, bsg_job);
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
}
static void
qla_enode_free(scsi_qla_host_t *vha, struct enode *node)
{
node->ntype = N_UNDEF;
kfree(node);
}
/**
* qla_enode_init - initialize enode structs & lock
* @vha: host adapter pointer
*
* should only be called when driver attaching
*/
void
qla_enode_init(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
char name[32];
if (vha->pur_cinfo.enode_flags == ENODE_ACTIVE) {
/* list still active - error */
ql_dbg(ql_dbg_edif, vha, 0x09102, "%s enode still active\n",
__func__);
return;
}
/* initialize lock which protects pur_core & init list */
spin_lock_init(&vha->pur_cinfo.pur_lock);
INIT_LIST_HEAD(&vha->pur_cinfo.head);
snprintf(name, sizeof(name), "%s_%d_purex", QLA2XXX_DRIVER_NAME,
ha->pdev->device);
}
/**
* qla_enode_stop - stop and clear and enode data
* @vha: host adapter pointer
*
* called when app notified it is exiting
*/
void
qla_enode_stop(scsi_qla_host_t *vha)
{
unsigned long flags;
struct enode *node, *q;
if (vha->pur_cinfo.enode_flags != ENODE_ACTIVE) {
/* doorbell list not enabled */
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s enode not active\n", __func__);
return;
}
/* grab lock so list doesn't move */
spin_lock_irqsave(&vha->pur_cinfo.pur_lock, flags);
vha->pur_cinfo.enode_flags &= ~ENODE_ACTIVE; /* mark it not active */
/* hopefully this is a null list at this point */
list_for_each_entry_safe(node, q, &vha->pur_cinfo.head, list) {
ql_dbg(ql_dbg_edif, vha, 0x910f,
"%s freeing enode type=%x, cnt=%x\n", __func__, node->ntype,
node->dinfo.nodecnt);
list_del_init(&node->list);
qla_enode_free(vha, node);
}
spin_unlock_irqrestore(&vha->pur_cinfo.pur_lock, flags);
}
static void qla_enode_clear(scsi_qla_host_t *vha, port_id_t portid)
{
unsigned long flags;
struct enode *e, *tmp;
struct purexevent *purex;
LIST_HEAD(enode_list);
if (vha->pur_cinfo.enode_flags != ENODE_ACTIVE) {
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s enode not active\n", __func__);
return;
}
spin_lock_irqsave(&vha->pur_cinfo.pur_lock, flags);
list_for_each_entry_safe(e, tmp, &vha->pur_cinfo.head, list) {
purex = &e->u.purexinfo;
if (purex->pur_info.pur_sid.b24 == portid.b24) {
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s free ELS sid=%06x. xchg %x, nb=%xh\n",
__func__, portid.b24,
purex->pur_info.pur_rx_xchg_address,
purex->pur_info.pur_bytes_rcvd);
list_del_init(&e->list);
list_add_tail(&e->list, &enode_list);
}
}
spin_unlock_irqrestore(&vha->pur_cinfo.pur_lock, flags);
list_for_each_entry_safe(e, tmp, &enode_list, list) {
list_del_init(&e->list);
qla_enode_free(vha, e);
}
}
/*
* allocate enode struct and populate buffer
* returns: enode pointer with buffers
* NULL on error
*/
static struct enode *
qla_enode_alloc(scsi_qla_host_t *vha, uint32_t ntype)
{
struct enode *node;
struct purexevent *purex;
node = kzalloc(RX_ELS_SIZE, GFP_ATOMIC);
if (!node)
return NULL;
purex = &node->u.purexinfo;
purex->msgp = (u8 *)(node + 1);
purex->msgp_len = ELS_MAX_PAYLOAD;
node->ntype = ntype;
INIT_LIST_HEAD(&node->list);
return node;
}
static void
qla_enode_add(scsi_qla_host_t *vha, struct enode *ptr)
{
unsigned long flags;
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x9109,
"%s add enode for type=%x, cnt=%x\n",
__func__, ptr->ntype, ptr->dinfo.nodecnt);
spin_lock_irqsave(&vha->pur_cinfo.pur_lock, flags);
list_add_tail(&ptr->list, &vha->pur_cinfo.head);
spin_unlock_irqrestore(&vha->pur_cinfo.pur_lock, flags);
return;
}
static struct enode *
qla_enode_find(scsi_qla_host_t *vha, uint32_t ntype, uint32_t p1, uint32_t p2)
{
struct enode *node_rtn = NULL;
struct enode *list_node, *q;
unsigned long flags;
uint32_t sid;
struct purexevent *purex;
/* secure the list from moving under us */
spin_lock_irqsave(&vha->pur_cinfo.pur_lock, flags);
list_for_each_entry_safe(list_node, q, &vha->pur_cinfo.head, list) {
/* node type determines what p1 and p2 are */
purex = &list_node->u.purexinfo;
sid = p1;
if (purex->pur_info.pur_sid.b24 == sid) {
/* found it and its complete */
node_rtn = list_node;
list_del(&list_node->list);
break;
}
}
spin_unlock_irqrestore(&vha->pur_cinfo.pur_lock, flags);
return node_rtn;
}
/**
* qla_pur_get_pending - read/return authentication message sent
* from remote port
* @vha: host adapter pointer
* @fcport: session pointer
* @bsg_job: user request where the message is copy to.
*/
static int
qla_pur_get_pending(scsi_qla_host_t *vha, fc_port_t *fcport,
struct bsg_job *bsg_job)
{
struct enode *ptr;
struct purexevent *purex;
struct qla_bsg_auth_els_reply *rpl =
(struct qla_bsg_auth_els_reply *)bsg_job->reply;
bsg_job->reply_len = sizeof(*rpl);
ptr = qla_enode_find(vha, N_PUREX, fcport->d_id.b24, PUR_GET);
if (!ptr) {
ql_dbg(ql_dbg_edif, vha, 0x9111,
"%s no enode data found for %8phN sid=%06x\n",
__func__, fcport->port_name, fcport->d_id.b24);
SET_DID_STATUS(rpl->r.result, DID_IMM_RETRY);
return -EIO;
}
/*
* enode is now off the linked list and is ours to deal with
*/
purex = &ptr->u.purexinfo;
/* Copy info back to caller */
rpl->rx_xchg_address = purex->pur_info.pur_rx_xchg_address;
SET_DID_STATUS(rpl->r.result, DID_OK);
rpl->r.reply_payload_rcv_len =
sg_pcopy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, purex->msgp,
purex->pur_info.pur_bytes_rcvd, 0);
/* data copy / passback completed - destroy enode */
qla_enode_free(vha, ptr);
return 0;
}
/* it is assume qpair lock is held */
static int
qla_els_reject_iocb(scsi_qla_host_t *vha, struct qla_qpair *qp,
struct qla_els_pt_arg *a)
{
struct els_entry_24xx *els_iocb;
els_iocb = __qla2x00_alloc_iocbs(qp, NULL);
if (!els_iocb) {
ql_log(ql_log_warn, vha, 0x700c,
"qla2x00_alloc_iocbs failed.\n");
return QLA_FUNCTION_FAILED;
}
qla_els_pt_iocb(vha, els_iocb, a);
ql_dbg(ql_dbg_edif, vha, 0x0183,
"Sending ELS reject ox_id %04x s:%06x -> d:%06x\n",
a->ox_id, a->sid.b24, a->did.b24);
ql_dump_buffer(ql_dbg_edif + ql_dbg_verbose, vha, 0x0185,
vha->hw->elsrej.c, sizeof(*vha->hw->elsrej.c));
/* flush iocb to mem before notifying hw doorbell */
wmb();
qla2x00_start_iocbs(vha, qp->req);
return 0;
}
void
qla_edb_init(scsi_qla_host_t *vha)
{
if (DBELL_ACTIVE(vha)) {
/* list already init'd - error */
ql_dbg(ql_dbg_edif, vha, 0x09102,
"edif db already initialized, cannot reinit\n");
return;
}
/* initialize lock which protects doorbell & init list */
spin_lock_init(&vha->e_dbell.db_lock);
INIT_LIST_HEAD(&vha->e_dbell.head);
}
static void qla_edb_clear(scsi_qla_host_t *vha, port_id_t portid)
{
unsigned long flags;
struct edb_node *e, *tmp;
port_id_t sid;
LIST_HEAD(edb_list);
if (DBELL_INACTIVE(vha)) {
/* doorbell list not enabled */
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s doorbell not enabled\n", __func__);
return;
}
/* grab lock so list doesn't move */
spin_lock_irqsave(&vha->e_dbell.db_lock, flags);
list_for_each_entry_safe(e, tmp, &vha->e_dbell.head, list) {
switch (e->ntype) {
case VND_CMD_AUTH_STATE_NEEDED:
case VND_CMD_AUTH_STATE_SESSION_SHUTDOWN:
sid = e->u.plogi_did;
break;
case VND_CMD_AUTH_STATE_ELS_RCVD:
sid = e->u.els_sid;
break;
case VND_CMD_AUTH_STATE_SAUPDATE_COMPL:
/* app wants to see this */
continue;
default:
ql_log(ql_log_warn, vha, 0x09102,
"%s unknown node type: %x\n", __func__, e->ntype);
sid.b24 = 0;
break;
}
if (sid.b24 == portid.b24) {
ql_dbg(ql_dbg_edif, vha, 0x910f,
"%s free doorbell event : node type = %x %p\n",
__func__, e->ntype, e);
list_del_init(&e->list);
list_add_tail(&e->list, &edb_list);
}
}
spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags);
list_for_each_entry_safe(e, tmp, &edb_list, list)
qla_edb_node_free(vha, e);
}
/* function called when app is stopping */
void
qla_edb_stop(scsi_qla_host_t *vha)
{
unsigned long flags;
struct edb_node *node, *q;
if (DBELL_INACTIVE(vha)) {
/* doorbell list not enabled */
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s doorbell not enabled\n", __func__);
return;
}
/* grab lock so list doesn't move */
spin_lock_irqsave(&vha->e_dbell.db_lock, flags);
vha->e_dbell.db_flags &= ~EDB_ACTIVE; /* mark it not active */
/* hopefully this is a null list at this point */
list_for_each_entry_safe(node, q, &vha->e_dbell.head, list) {
ql_dbg(ql_dbg_edif, vha, 0x910f,
"%s freeing edb_node type=%x\n",
__func__, node->ntype);
qla_edb_node_free(vha, node);
}
spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags);
qla_edif_dbell_bsg_done(vha);
}
static struct edb_node *
qla_edb_node_alloc(scsi_qla_host_t *vha, uint32_t ntype)
{
struct edb_node *node;
node = kzalloc(sizeof(*node), GFP_ATOMIC);
if (!node) {
/* couldn't get space */
ql_dbg(ql_dbg_edif, vha, 0x9100,
"edb node unable to be allocated\n");
return NULL;
}
node->ntype = ntype;
INIT_LIST_HEAD(&node->list);
return node;
}
/* adds a already allocated enode to the linked list */
static bool
qla_edb_node_add(scsi_qla_host_t *vha, struct edb_node *ptr)
{
unsigned long flags;
if (DBELL_INACTIVE(vha)) {
/* doorbell list not enabled */
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s doorbell not enabled\n", __func__);
return false;
}
spin_lock_irqsave(&vha->e_dbell.db_lock, flags);
list_add_tail(&ptr->list, &vha->e_dbell.head);
spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags);
return true;
}
/* adds event to doorbell list */
void
qla_edb_eventcreate(scsi_qla_host_t *vha, uint32_t dbtype,
uint32_t data, uint32_t data2, fc_port_t *sfcport)
{
struct edb_node *edbnode;
fc_port_t *fcport = sfcport;
port_id_t id;
if (!vha->hw->flags.edif_enabled) {
/* edif not enabled */
return;
}
if (DBELL_INACTIVE(vha)) {
if (fcport)
fcport->edif.auth_state = dbtype;
/* doorbell list not enabled */
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s doorbell not enabled (type=%d\n", __func__, dbtype);
return;
}
edbnode = qla_edb_node_alloc(vha, dbtype);
if (!edbnode) {
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s unable to alloc db node\n", __func__);
return;
}
if (!fcport) {
id.b.domain = (data >> 16) & 0xff;
id.b.area = (data >> 8) & 0xff;
id.b.al_pa = data & 0xff;
ql_dbg(ql_dbg_edif, vha, 0x09222,
"%s: Arrived s_id: %06x\n", __func__,
id.b24);
fcport = qla2x00_find_fcport_by_pid(vha, &id);
if (!fcport) {
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s can't find fcport for sid= 0x%x - ignoring\n",
__func__, id.b24);
kfree(edbnode);
return;
}
}
/* populate the edb node */
switch (dbtype) {
case VND_CMD_AUTH_STATE_NEEDED:
case VND_CMD_AUTH_STATE_SESSION_SHUTDOWN:
edbnode->u.plogi_did.b24 = fcport->d_id.b24;
break;
case VND_CMD_AUTH_STATE_ELS_RCVD:
edbnode->u.els_sid.b24 = fcport->d_id.b24;
break;
case VND_CMD_AUTH_STATE_SAUPDATE_COMPL:
edbnode->u.sa_aen.port_id = fcport->d_id;
edbnode->u.sa_aen.status = data;
edbnode->u.sa_aen.key_type = data2;
edbnode->u.sa_aen.version = EDIF_VERSION1;
break;
default:
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s unknown type: %x\n", __func__, dbtype);
kfree(edbnode);
edbnode = NULL;
break;
}
if (edbnode) {
if (!qla_edb_node_add(vha, edbnode)) {
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s unable to add dbnode\n", __func__);
kfree(edbnode);
return;
}
ql_dbg(ql_dbg_edif, vha, 0x09102,
"%s Doorbell produced : type=%d %p\n", __func__, dbtype, edbnode);
qla_edif_dbell_bsg_done(vha);
if (fcport)
fcport->edif.auth_state = dbtype;
}
}
void
qla_edif_timer(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
if (!vha->vp_idx && N2N_TOPO(ha) && ha->flags.n2n_fw_acc_sec) {
if (DBELL_INACTIVE(vha) &&
ha->edif_post_stop_cnt_down) {
ha->edif_post_stop_cnt_down--;
/*
* turn off auto 'Plogi Acc + secure=1' feature
* Set Add FW option[3]
* BIT_15, if.
*/
if (ha->edif_post_stop_cnt_down == 0) {
ql_dbg(ql_dbg_async, vha, 0x911d,
"%s chip reset to turn off PLOGI ACC + secure\n",
__func__);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
}
} else {
ha->edif_post_stop_cnt_down = 60;
}
}
if (vha->e_dbell.dbell_bsg_job && time_after_eq(jiffies, vha->e_dbell.bsg_expire))
qla_edif_dbell_bsg_done(vha);
}
static void qla_noop_sp_done(srb_t *sp, int res)
{
sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
}
/*
* Called from work queue
* build and send the sa_update iocb to delete an rx sa_index
*/
int
qla24xx_issue_sa_replace_iocb(scsi_qla_host_t *vha, struct qla_work_evt *e)
{
srb_t *sp;
fc_port_t *fcport = NULL;
struct srb_iocb *iocb_cmd = NULL;
int rval = QLA_SUCCESS;
struct edif_sa_ctl *sa_ctl = e->u.sa_update.sa_ctl;
uint16_t nport_handle = e->u.sa_update.nport_handle;
ql_dbg(ql_dbg_edif, vha, 0x70e6,
"%s: starting, sa_ctl: %p\n", __func__, sa_ctl);
if (!sa_ctl) {
ql_dbg(ql_dbg_edif, vha, 0x70e6,
"sa_ctl allocation failed\n");
rval = -ENOMEM;
return rval;
}
fcport = sa_ctl->fcport;
/* Alloc SRB structure */
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp) {
ql_dbg(ql_dbg_edif, vha, 0x70e6,
"SRB allocation failed\n");
rval = -ENOMEM;
goto done;
}
fcport->flags |= FCF_ASYNC_SENT;
iocb_cmd = &sp->u.iocb_cmd;
iocb_cmd->u.sa_update.sa_ctl = sa_ctl;
ql_dbg(ql_dbg_edif, vha, 0x3073,
"Enter: SA REPL portid=%06x, sa_ctl %p, index %x, nport_handle: 0x%x\n",
fcport->d_id.b24, sa_ctl, sa_ctl->index, nport_handle);
/*
* if this is a sadb cleanup delete, mark it so the isr can
* take the correct action
*/
if (sa_ctl->flags & EDIF_SA_CTL_FLG_CLEANUP_DEL) {
/* mark this srb as a cleanup delete */
sp->flags |= SRB_EDIF_CLEANUP_DELETE;
ql_dbg(ql_dbg_edif, vha, 0x70e6,
"%s: sp 0x%p flagged as cleanup delete\n", __func__, sp);
}
sp->type = SRB_SA_REPLACE;
sp->name = "SA_REPLACE";
sp->fcport = fcport;
sp->free = qla2x00_rel_sp;
sp->done = qla_noop_sp_done;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
goto done_free_sp;
}
return rval;
done_free_sp:
kref_put(&sp->cmd_kref, qla2x00_sp_release);
fcport->flags &= ~FCF_ASYNC_SENT;
done:
fcport->flags &= ~FCF_ASYNC_ACTIVE;
return rval;
}
void qla24xx_sa_update_iocb(srb_t *sp, struct sa_update_28xx *sa_update_iocb)
{
int itr = 0;
struct scsi_qla_host *vha = sp->vha;
struct qla_sa_update_frame *sa_frame =
&sp->u.iocb_cmd.u.sa_update.sa_frame;
u8 flags = 0;
switch (sa_frame->flags & (SAU_FLG_INV | SAU_FLG_TX)) {
case 0:
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: EDIF SA UPDATE RX IOCB vha: 0x%p index: %d\n",
__func__, vha, sa_frame->fast_sa_index);
break;
case 1:
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: EDIF SA DELETE RX IOCB vha: 0x%p index: %d\n",
__func__, vha, sa_frame->fast_sa_index);
flags |= SA_FLAG_INVALIDATE;
break;
case 2:
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: EDIF SA UPDATE TX IOCB vha: 0x%p index: %d\n",
__func__, vha, sa_frame->fast_sa_index);
flags |= SA_FLAG_TX;
break;
case 3:
ql_dbg(ql_dbg_edif, vha, 0x911d,
"%s: EDIF SA DELETE TX IOCB vha: 0x%p index: %d\n",
__func__, vha, sa_frame->fast_sa_index);
flags |= SA_FLAG_TX | SA_FLAG_INVALIDATE;
break;
}
sa_update_iocb->entry_type = SA_UPDATE_IOCB_TYPE;
sa_update_iocb->entry_count = 1;
sa_update_iocb->sys_define = 0;
sa_update_iocb->entry_status = 0;
sa_update_iocb->handle = sp->handle;
sa_update_iocb->u.nport_handle = cpu_to_le16(sp->fcport->loop_id);
sa_update_iocb->vp_index = sp->fcport->vha->vp_idx;
sa_update_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
sa_update_iocb->port_id[1] = sp->fcport->d_id.b.area;
sa_update_iocb->port_id[2] = sp->fcport->d_id.b.domain;
sa_update_iocb->flags = flags;
sa_update_iocb->salt = cpu_to_le32(sa_frame->salt);
sa_update_iocb->spi = cpu_to_le32(sa_frame->spi);
sa_update_iocb->sa_index = cpu_to_le16(sa_frame->fast_sa_index);
sa_update_iocb->sa_control |= SA_CNTL_ENC_FCSP;
if (sp->fcport->edif.aes_gmac)
sa_update_iocb->sa_control |= SA_CNTL_AES_GMAC;
if (sa_frame->flags & SAU_FLG_KEY256) {
sa_update_iocb->sa_control |= SA_CNTL_KEY256;
for (itr = 0; itr < 32; itr++)
sa_update_iocb->sa_key[itr] = sa_frame->sa_key[itr];
} else {
sa_update_iocb->sa_control |= SA_CNTL_KEY128;
for (itr = 0; itr < 16; itr++)
sa_update_iocb->sa_key[itr] = sa_frame->sa_key[itr];
}
ql_dbg(ql_dbg_edif, vha, 0x921d,
"%s SAU Port ID = %02x%02x%02x, flags=%xh, index=%u, ctl=%xh, SPI 0x%x flags 0x%x hdl=%x gmac %d\n",
__func__, sa_update_iocb->port_id[2], sa_update_iocb->port_id[1],
sa_update_iocb->port_id[0], sa_update_iocb->flags, sa_update_iocb->sa_index,
sa_update_iocb->sa_control, sa_update_iocb->spi, sa_frame->flags, sp->handle,
sp->fcport->edif.aes_gmac);
if (sa_frame->flags & SAU_FLG_TX)
sp->fcport->edif.tx_sa_pending = 1;
else
sp->fcport->edif.rx_sa_pending = 1;
sp->fcport->vha->qla_stats.control_requests++;
}
void
qla24xx_sa_replace_iocb(srb_t *sp, struct sa_update_28xx *sa_update_iocb)
{
struct scsi_qla_host *vha = sp->vha;
struct srb_iocb *srb_iocb = &sp->u.iocb_cmd;
struct edif_sa_ctl *sa_ctl = srb_iocb->u.sa_update.sa_ctl;
uint16_t nport_handle = sp->fcport->loop_id;
sa_update_iocb->entry_type = SA_UPDATE_IOCB_TYPE;
sa_update_iocb->entry_count = 1;
sa_update_iocb->sys_define = 0;
sa_update_iocb->entry_status = 0;
sa_update_iocb->handle = sp->handle;
sa_update_iocb->u.nport_handle = cpu_to_le16(nport_handle);
sa_update_iocb->vp_index = sp->fcport->vha->vp_idx;
sa_update_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
sa_update_iocb->port_id[1] = sp->fcport->d_id.b.area;
sa_update_iocb->port_id[2] = sp->fcport->d_id.b.domain;
/* Invalidate the index. salt, spi, control & key are ignore */
sa_update_iocb->flags = SA_FLAG_INVALIDATE;
sa_update_iocb->salt = 0;
sa_update_iocb->spi = 0;
sa_update_iocb->sa_index = cpu_to_le16(sa_ctl->index);
sa_update_iocb->sa_control = 0;
ql_dbg(ql_dbg_edif, vha, 0x921d,
"%s SAU DELETE RX Port ID = %02x:%02x:%02x, lid %d flags=%xh, index=%u, hdl=%x\n",
__func__, sa_update_iocb->port_id[2], sa_update_iocb->port_id[1],
sa_update_iocb->port_id[0], nport_handle, sa_update_iocb->flags,
sa_update_iocb->sa_index, sp->handle);
sp->fcport->vha->qla_stats.control_requests++;
}
void qla24xx_auth_els(scsi_qla_host_t *vha, void **pkt, struct rsp_que **rsp)
{
struct purex_entry_24xx *p = *pkt;
struct enode *ptr;
int sid;
u16 totlen;
struct purexevent *purex;
struct scsi_qla_host *host = NULL;
int rc;
struct fc_port *fcport;
struct qla_els_pt_arg a;
be_id_t beid;
memset(&a, 0, sizeof(a));
a.els_opcode = ELS_AUTH_ELS;
a.nport_handle = p->nport_handle;
a.rx_xchg_address = p->rx_xchg_addr;
a.did.b.domain = p->s_id[2];
a.did.b.area = p->s_id[1];
a.did.b.al_pa = p->s_id[0];
a.tx_byte_count = a.tx_len = sizeof(struct fc_els_ls_rjt);
a.tx_addr = vha->hw->elsrej.cdma;
a.vp_idx = vha->vp_idx;
a.control_flags = EPD_ELS_RJT;
a.ox_id = le16_to_cpu(p->ox_id);
sid = p->s_id[0] | (p->s_id[1] << 8) | (p->s_id[2] << 16);
totlen = (le16_to_cpu(p->frame_size) & 0x0fff) - PURX_ELS_HEADER_SIZE;
if (le16_to_cpu(p->status_flags) & 0x8000) {
totlen = le16_to_cpu(p->trunc_frame_size);
qla_els_reject_iocb(vha, (*rsp)->qpair, &a);
__qla_consume_iocb(vha, pkt, rsp);
return;
}
if (totlen > ELS_MAX_PAYLOAD) {
ql_dbg(ql_dbg_edif, vha, 0x0910d,
"%s WARNING: verbose ELS frame received (totlen=%x)\n",
__func__, totlen);
qla_els_reject_iocb(vha, (*rsp)->qpair, &a);
__qla_consume_iocb(vha, pkt, rsp);
return;
}
if (!vha->hw->flags.edif_enabled) {
/* edif support not enabled */
ql_dbg(ql_dbg_edif, vha, 0x910e, "%s edif not enabled\n",
__func__);
qla_els_reject_iocb(vha, (*rsp)->qpair, &a);
__qla_consume_iocb(vha, pkt, rsp);
return;
}
ptr = qla_enode_alloc(vha, N_PUREX);
if (!ptr) {
ql_dbg(ql_dbg_edif, vha, 0x09109,
"WARNING: enode alloc failed for sid=%x\n",
sid);
qla_els_reject_iocb(vha, (*rsp)->qpair, &a);
__qla_consume_iocb(vha, pkt, rsp);
return;
}
purex = &ptr->u.purexinfo;
purex->pur_info.pur_sid = a.did;
purex->pur_info.pur_bytes_rcvd = totlen;
purex->pur_info.pur_rx_xchg_address = le32_to_cpu(p->rx_xchg_addr);
purex->pur_info.pur_nphdl = le16_to_cpu(p->nport_handle);
purex->pur_info.pur_did.b.domain = p->d_id[2];
purex->pur_info.pur_did.b.area = p->d_id[1];
purex->pur_info.pur_did.b.al_pa = p->d_id[0];
purex->pur_info.vp_idx = p->vp_idx;
a.sid = purex->pur_info.pur_did;
rc = __qla_copy_purex_to_buffer(vha, pkt, rsp, purex->msgp,
purex->msgp_len);
if (rc) {
qla_els_reject_iocb(vha, (*rsp)->qpair, &a);
qla_enode_free(vha, ptr);
return;
}
beid.al_pa = purex->pur_info.pur_did.b.al_pa;
beid.area = purex->pur_info.pur_did.b.area;
beid.domain = purex->pur_info.pur_did.b.domain;
host = qla_find_host_by_d_id(vha, beid);
if (!host) {
ql_log(ql_log_fatal, vha, 0x508b,
"%s Drop ELS due to unable to find host %06x\n",
__func__, purex->pur_info.pur_did.b24);
qla_els_reject_iocb(vha, (*rsp)->qpair, &a);
qla_enode_free(vha, ptr);
return;
}
fcport = qla2x00_find_fcport_by_pid(host, &purex->pur_info.pur_sid);
if (DBELL_INACTIVE(vha)) {
ql_dbg(ql_dbg_edif, host, 0x0910c, "%s e_dbell.db_flags =%x %06x\n",
__func__, host->e_dbell.db_flags,
fcport ? fcport->d_id.b24 : 0);
qla_els_reject_iocb(host, (*rsp)->qpair, &a);
qla_enode_free(host, ptr);
return;
}
if (fcport && EDIF_SESSION_DOWN(fcport)) {
ql_dbg(ql_dbg_edif, host, 0x13b6,
"%s terminate exchange. Send logo to 0x%x\n",
__func__, a.did.b24);
a.tx_byte_count = a.tx_len = 0;
a.tx_addr = 0;
a.control_flags = EPD_RX_XCHG; /* EPD_RX_XCHG = terminate cmd */
qla_els_reject_iocb(host, (*rsp)->qpair, &a);
qla_enode_free(host, ptr);
/* send logo to let remote port knows to tear down session */
fcport->send_els_logo = 1;
qlt_schedule_sess_for_deletion(fcport);
return;
}
/* add the local enode to the list */
qla_enode_add(host, ptr);
ql_dbg(ql_dbg_edif, host, 0x0910c,
"%s COMPLETE purex->pur_info.pur_bytes_rcvd =%xh s:%06x -> d:%06x xchg=%xh\n",
__func__, purex->pur_info.pur_bytes_rcvd, purex->pur_info.pur_sid.b24,
purex->pur_info.pur_did.b24, purex->pur_info.pur_rx_xchg_address);
qla_edb_eventcreate(host, VND_CMD_AUTH_STATE_ELS_RCVD, sid, 0, NULL);
}
static uint16_t qla_edif_get_sa_index_from_freepool(fc_port_t *fcport, int dir)
{
struct scsi_qla_host *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
void *sa_id_map;
unsigned long flags = 0;
u16 sa_index;
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x3063,
"%s: entry\n", __func__);
if (dir)
sa_id_map = ha->edif_tx_sa_id_map;
else
sa_id_map = ha->edif_rx_sa_id_map;
spin_lock_irqsave(&ha->sadb_fp_lock, flags);
sa_index = find_first_zero_bit(sa_id_map, EDIF_NUM_SA_INDEX);
if (sa_index >= EDIF_NUM_SA_INDEX) {
spin_unlock_irqrestore(&ha->sadb_fp_lock, flags);
return INVALID_EDIF_SA_INDEX;
}
set_bit(sa_index, sa_id_map);
spin_unlock_irqrestore(&ha->sadb_fp_lock, flags);
if (dir)
sa_index += EDIF_TX_SA_INDEX_BASE;
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: index retrieved from free pool %d\n", __func__, sa_index);
return sa_index;
}
/* find an sadb entry for an nport_handle */
static struct edif_sa_index_entry *
qla_edif_sadb_find_sa_index_entry(uint16_t nport_handle,
struct list_head *sa_list)
{
struct edif_sa_index_entry *entry;
struct edif_sa_index_entry *tentry;
struct list_head *indx_list = sa_list;
list_for_each_entry_safe(entry, tentry, indx_list, next) {
if (entry->handle == nport_handle)
return entry;
}
return NULL;
}
/* remove an sa_index from the nport_handle and return it to the free pool */
static int qla_edif_sadb_delete_sa_index(fc_port_t *fcport, uint16_t nport_handle,
uint16_t sa_index)
{
struct edif_sa_index_entry *entry;
struct list_head *sa_list;
int dir = (sa_index < EDIF_TX_SA_INDEX_BASE) ? 0 : 1;
int slot = 0;
int free_slot_count = 0;
scsi_qla_host_t *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags = 0;
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: entry\n", __func__);
if (dir)
sa_list = &ha->sadb_tx_index_list;
else
sa_list = &ha->sadb_rx_index_list;
entry = qla_edif_sadb_find_sa_index_entry(nport_handle, sa_list);
if (!entry) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: no entry found for nport_handle 0x%x\n",
__func__, nport_handle);
return -1;
}
spin_lock_irqsave(&ha->sadb_lock, flags);
/*
* each tx/rx direction has up to 2 sa indexes/slots. 1 slot for in flight traffic
* the other is use at re-key time.
*/
for (slot = 0; slot < 2; slot++) {
if (entry->sa_pair[slot].sa_index == sa_index) {
entry->sa_pair[slot].sa_index = INVALID_EDIF_SA_INDEX;
entry->sa_pair[slot].spi = 0;
free_slot_count++;
qla_edif_add_sa_index_to_freepool(fcport, dir, sa_index);
} else if (entry->sa_pair[slot].sa_index == INVALID_EDIF_SA_INDEX) {
free_slot_count++;
}
}
if (free_slot_count == 2) {
list_del(&entry->next);
kfree(entry);
}
spin_unlock_irqrestore(&ha->sadb_lock, flags);
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: sa_index %d removed, free_slot_count: %d\n",
__func__, sa_index, free_slot_count);
return 0;
}
void
qla28xx_sa_update_iocb_entry(scsi_qla_host_t *v, struct req_que *req,
struct sa_update_28xx *pkt)
{
const char *func = "SA_UPDATE_RESPONSE_IOCB";
srb_t *sp;
struct edif_sa_ctl *sa_ctl;
int old_sa_deleted = 1;
uint16_t nport_handle;
struct scsi_qla_host *vha;
sp = qla2x00_get_sp_from_handle(v, func, req, pkt);
if (!sp) {
ql_dbg(ql_dbg_edif, v, 0x3063,
"%s: no sp found for pkt\n", __func__);
return;
}
/* use sp->vha due to npiv */
vha = sp->vha;
switch (pkt->flags & (SA_FLAG_INVALIDATE | SA_FLAG_TX)) {
case 0:
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: EDIF SA UPDATE RX IOCB vha: 0x%p index: %d\n",
__func__, vha, pkt->sa_index);
break;
case 1:
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: EDIF SA DELETE RX IOCB vha: 0x%p index: %d\n",
__func__, vha, pkt->sa_index);
break;
case 2:
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: EDIF SA UPDATE TX IOCB vha: 0x%p index: %d\n",
__func__, vha, pkt->sa_index);
break;
case 3:
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: EDIF SA DELETE TX IOCB vha: 0x%p index: %d\n",
__func__, vha, pkt->sa_index);
break;
}
/*
* dig the nport handle out of the iocb, fcport->loop_id can not be trusted
* to be correct during cleanup sa_update iocbs.
*/
nport_handle = sp->fcport->loop_id;
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: %8phN comp status=%x old_sa_info=%x new_sa_info=%x lid %d, index=0x%x pkt_flags %xh hdl=%x\n",
__func__, sp->fcport->port_name, pkt->u.comp_sts, pkt->old_sa_info, pkt->new_sa_info,
nport_handle, pkt->sa_index, pkt->flags, sp->handle);
/* if rx delete, remove the timer */
if ((pkt->flags & (SA_FLAG_INVALIDATE | SA_FLAG_TX)) == SA_FLAG_INVALIDATE) {
struct edif_list_entry *edif_entry;
sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
edif_entry = qla_edif_list_find_sa_index(sp->fcport, nport_handle);
if (edif_entry) {
ql_dbg(ql_dbg_edif, vha, 0x5033,
"%s: removing edif_entry %p, new sa_index: 0x%x\n",
__func__, edif_entry, pkt->sa_index);
qla_edif_list_delete_sa_index(sp->fcport, edif_entry);
timer_shutdown(&edif_entry->timer);
ql_dbg(ql_dbg_edif, vha, 0x5033,
"%s: releasing edif_entry %p, new sa_index: 0x%x\n",
__func__, edif_entry, pkt->sa_index);
kfree(edif_entry);
}
}
/*
* if this is a delete for either tx or rx, make sure it succeeded.
* The new_sa_info field should be 0xffff on success
*/
if (pkt->flags & SA_FLAG_INVALIDATE)
old_sa_deleted = (le16_to_cpu(pkt->new_sa_info) == 0xffff) ? 1 : 0;
/* Process update and delete the same way */
/* If this is an sadb cleanup delete, bypass sending events to IPSEC */
if (sp->flags & SRB_EDIF_CLEANUP_DELETE) {
sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: nph 0x%x, sa_index %d removed from fw\n",
__func__, sp->fcport->loop_id, pkt->sa_index);
} else if ((pkt->entry_status == 0) && (pkt->u.comp_sts == 0) &&
old_sa_deleted) {
/*
* Note: Wa are only keeping track of latest SA,
* so we know when we can start enableing encryption per I/O.
* If all SA's get deleted, let FW reject the IOCB.
* TODO: edif: don't set enabled here I think
* TODO: edif: prli complete is where it should be set
*/
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x3063,
"SA(%x)updated for s_id %02x%02x%02x\n",
pkt->new_sa_info,
pkt->port_id[2], pkt->port_id[1], pkt->port_id[0]);
sp->fcport->edif.enable = 1;
if (pkt->flags & SA_FLAG_TX) {
sp->fcport->edif.tx_sa_set = 1;
sp->fcport->edif.tx_sa_pending = 0;
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_SAUPDATE_COMPL,
QL_VND_SA_STAT_SUCCESS,
QL_VND_TX_SA_KEY, sp->fcport);
} else {
sp->fcport->edif.rx_sa_set = 1;
sp->fcport->edif.rx_sa_pending = 0;
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_SAUPDATE_COMPL,
QL_VND_SA_STAT_SUCCESS,
QL_VND_RX_SA_KEY, sp->fcport);
}
} else {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: %8phN SA update FAILED: sa_index: %d, new_sa_info %d, %02x%02x%02x\n",
__func__, sp->fcport->port_name, pkt->sa_index, pkt->new_sa_info,
pkt->port_id[2], pkt->port_id[1], pkt->port_id[0]);
if (pkt->flags & SA_FLAG_TX)
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_SAUPDATE_COMPL,
(le16_to_cpu(pkt->u.comp_sts) << 16) | QL_VND_SA_STAT_FAILED,
QL_VND_TX_SA_KEY, sp->fcport);
else
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_SAUPDATE_COMPL,
(le16_to_cpu(pkt->u.comp_sts) << 16) | QL_VND_SA_STAT_FAILED,
QL_VND_RX_SA_KEY, sp->fcport);
}
/* for delete, release sa_ctl, sa_index */
if (pkt->flags & SA_FLAG_INVALIDATE) {
/* release the sa_ctl */
sa_ctl = qla_edif_find_sa_ctl_by_index(sp->fcport,
le16_to_cpu(pkt->sa_index), (pkt->flags & SA_FLAG_TX));
if (sa_ctl &&
qla_edif_find_sa_ctl_by_index(sp->fcport, sa_ctl->index,
(pkt->flags & SA_FLAG_TX)) != NULL) {
ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x3063,
"%s: freeing sa_ctl for index %d\n",
__func__, sa_ctl->index);
qla_edif_free_sa_ctl(sp->fcport, sa_ctl, sa_ctl->index);
} else {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: sa_ctl NOT freed, sa_ctl: %p\n",
__func__, sa_ctl);
}
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: freeing sa_index %d, nph: 0x%x\n",
__func__, le16_to_cpu(pkt->sa_index), nport_handle);
qla_edif_sadb_delete_sa_index(sp->fcport, nport_handle,
le16_to_cpu(pkt->sa_index));
/*
* check for a failed sa_update and remove
* the sadb entry.
*/
} else if (pkt->u.comp_sts) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: freeing sa_index %d, nph: 0x%x\n",
__func__, pkt->sa_index, nport_handle);
qla_edif_sadb_delete_sa_index(sp->fcport, nport_handle,
le16_to_cpu(pkt->sa_index));
switch (le16_to_cpu(pkt->u.comp_sts)) {
case CS_PORT_EDIF_UNAVAIL:
case CS_PORT_EDIF_LOGOUT:
qlt_schedule_sess_for_deletion(sp->fcport);
break;
default:
break;
}
}
sp->done(sp, 0);
}
/**
* qla28xx_start_scsi_edif() - Send a SCSI type 6 command to the ISP
* @sp: command to send to the ISP
*
* Return: non-zero if a failure occurred, else zero.
*/
int
qla28xx_start_scsi_edif(srb_t *sp)
{
int nseg;
unsigned long flags;
struct scsi_cmnd *cmd;
uint32_t *clr_ptr;
uint32_t index, i;
uint32_t handle;
uint16_t cnt;
int16_t req_cnt;
uint16_t tot_dsds;
__be32 *fcp_dl;
uint8_t additional_cdb_len;
struct ct6_dsd *ctx;
struct scsi_qla_host *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
struct cmd_type_6 *cmd_pkt;
struct dsd64 *cur_dsd;
uint8_t avail_dsds = 0;
struct scatterlist *sg;
struct req_que *req = sp->qpair->req;
spinlock_t *lock = sp->qpair->qp_lock_ptr;
/* Setup device pointers. */
cmd = GET_CMD_SP(sp);
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (qla2x00_marker(vha, sp->qpair, 0, 0, MK_SYNC_ALL) !=
QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x300c,
"qla2x00_marker failed for cmd=%p.\n", cmd);
return QLA_FUNCTION_FAILED;
}
vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(lock, flags);
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
for (index = 1; index < req->num_outstanding_cmds; index++) {
handle++;
if (handle == req->num_outstanding_cmds)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
if (index == req->num_outstanding_cmds)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
} else {
nseg = 0;
}
tot_dsds = nseg;
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
sp->iores.exch_cnt = 1;
sp->iores.iocb_cnt = req_cnt;
if (qla_get_fw_resources(sp->qpair, &sp->iores))
goto queuing_error;
if (req->cnt < (req_cnt + 2)) {
cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
rd_reg_dword(req->req_q_out);
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
if (req->cnt < (req_cnt + 2))
goto queuing_error;
}
if (qla_get_buf(vha, sp->qpair, &sp->u.scmd.buf_dsc)) {
ql_log(ql_log_fatal, vha, 0x3011,
"Failed to allocate buf for fcp_cmnd for cmd=%p.\n", cmd);
goto queuing_error;
}
sp->flags |= SRB_GOT_BUF;
ctx = &sp->u.scmd.ct6_ctx;
ctx->fcp_cmnd = sp->u.scmd.buf_dsc.buf;
ctx->fcp_cmnd_dma = sp->u.scmd.buf_dsc.buf_dma;
if (cmd->cmd_len > 16) {
additional_cdb_len = cmd->cmd_len - 16;
if ((cmd->cmd_len % 4) != 0) {
/*
* SCSI command bigger than 16 bytes must be
* multiple of 4
*/
ql_log(ql_log_warn, vha, 0x3012,
"scsi cmd len %d not multiple of 4 for cmd=%p.\n",
cmd->cmd_len, cmd);
goto queuing_error_fcp_cmnd;
}
ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
} else {
additional_cdb_len = 0;
ctx->fcp_cmnd_len = 12 + 16 + 4;
}
cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
/*
* Zero out remaining portion of packet.
* tagged queuing modifier -- default is TSK_SIMPLE (0).
*/
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = cpu_to_le32(0);
goto no_dsds;
}
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
vha->qla_stats.output_bytes += scsi_bufflen(cmd);
vha->qla_stats.output_requests++;
sp->fcport->edif.tx_bytes += scsi_bufflen(cmd);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
vha->qla_stats.input_bytes += scsi_bufflen(cmd);
vha->qla_stats.input_requests++;
sp->fcport->edif.rx_bytes += scsi_bufflen(cmd);
}
cmd_pkt->control_flags |= cpu_to_le16(CF_EN_EDIF);
cmd_pkt->control_flags &= ~(cpu_to_le16(CF_NEW_SA));
/* One DSD is available in the Command Type 6 IOCB */
avail_dsds = 1;
cur_dsd = &cmd_pkt->fcp_dsd;
/* Load data segments */
scsi_for_each_sg(cmd, sg, tot_dsds, i) {
dma_addr_t sle_dma;
cont_a64_entry_t *cont_pkt;
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Continuation
* Type 1 IOCB.
*/
cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req);
cur_dsd = cont_pkt->dsd;
avail_dsds = 5;
}
sle_dma = sg_dma_address(sg);
put_unaligned_le64(sle_dma, &cur_dsd->address);
cur_dsd->length = cpu_to_le32(sg_dma_len(sg));
cur_dsd++;
avail_dsds--;
}
no_dsds:
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->vha->vp_idx;
cmd_pkt->entry_type = COMMAND_TYPE_6;
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
/* build FCP_CMND IU */
int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun);
ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
if (cmd->sc_data_direction == DMA_TO_DEVICE)
ctx->fcp_cmnd->additional_cdb_len |= 1;
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
ctx->fcp_cmnd->additional_cdb_len |= 2;
/* Populate the FCP_PRIO. */
if (ha->flags.fcp_prio_enabled)
ctx->fcp_cmnd->task_attribute |=
sp->fcport->fcp_prio << 3;
memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 +
additional_cdb_len);
*fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
put_unaligned_le64(ctx->fcp_cmnd_dma, &cmd_pkt->fcp_cmnd_dseg_address);
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
cmd_pkt->entry_status = 0;
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
/* Adjust ring index. */
wmb();
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else {
req->ring_ptr++;
}
sp->qpair->cmd_cnt++;
/* Set chip new ring index. */
wrt_reg_dword(req->req_q_in, req->ring_index);
spin_unlock_irqrestore(lock, flags);
return QLA_SUCCESS;
queuing_error_fcp_cmnd:
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
qla_put_buf(sp->qpair, &sp->u.scmd.buf_dsc);
qla_put_fw_resources(sp->qpair, &sp->iores);
spin_unlock_irqrestore(lock, flags);
return QLA_FUNCTION_FAILED;
}
/**********************************************
* edif update/delete sa_index list functions *
**********************************************/
/* clear the edif_indx_list for this port */
void qla_edif_list_del(fc_port_t *fcport)
{
struct edif_list_entry *indx_lst;
struct edif_list_entry *tindx_lst;
struct list_head *indx_list = &fcport->edif.edif_indx_list;
unsigned long flags = 0;
spin_lock_irqsave(&fcport->edif.indx_list_lock, flags);
list_for_each_entry_safe(indx_lst, tindx_lst, indx_list, next) {
list_del(&indx_lst->next);
kfree(indx_lst);
}
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
}
/******************
* SADB functions *
******************/
/* allocate/retrieve an sa_index for a given spi */
static uint16_t qla_edif_sadb_get_sa_index(fc_port_t *fcport,
struct qla_sa_update_frame *sa_frame)
{
struct edif_sa_index_entry *entry;
struct list_head *sa_list;
uint16_t sa_index;
int dir = sa_frame->flags & SAU_FLG_TX;
int slot = 0;
int free_slot = -1;
scsi_qla_host_t *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
unsigned long flags = 0;
uint16_t nport_handle = fcport->loop_id;
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: entry fc_port: %p, nport_handle: 0x%x\n",
__func__, fcport, nport_handle);
if (dir)
sa_list = &ha->sadb_tx_index_list;
else
sa_list = &ha->sadb_rx_index_list;
entry = qla_edif_sadb_find_sa_index_entry(nport_handle, sa_list);
if (!entry) {
if ((sa_frame->flags & (SAU_FLG_TX | SAU_FLG_INV)) == SAU_FLG_INV) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: rx delete request with no entry\n", __func__);
return RX_DELETE_NO_EDIF_SA_INDEX;
}
/* if there is no entry for this nport, add one */
entry = kzalloc((sizeof(struct edif_sa_index_entry)), GFP_ATOMIC);
if (!entry)
return INVALID_EDIF_SA_INDEX;
sa_index = qla_edif_get_sa_index_from_freepool(fcport, dir);
if (sa_index == INVALID_EDIF_SA_INDEX) {
kfree(entry);
return INVALID_EDIF_SA_INDEX;
}
INIT_LIST_HEAD(&entry->next);
entry->handle = nport_handle;
entry->fcport = fcport;
entry->sa_pair[0].spi = sa_frame->spi;
entry->sa_pair[0].sa_index = sa_index;
entry->sa_pair[1].spi = 0;
entry->sa_pair[1].sa_index = INVALID_EDIF_SA_INDEX;
spin_lock_irqsave(&ha->sadb_lock, flags);
list_add_tail(&entry->next, sa_list);
spin_unlock_irqrestore(&ha->sadb_lock, flags);
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: Created new sadb entry for nport_handle 0x%x, spi 0x%x, returning sa_index %d\n",
__func__, nport_handle, sa_frame->spi, sa_index);
return sa_index;
}
spin_lock_irqsave(&ha->sadb_lock, flags);
/* see if we already have an entry for this spi */
for (slot = 0; slot < 2; slot++) {
if (entry->sa_pair[slot].sa_index == INVALID_EDIF_SA_INDEX) {
free_slot = slot;
} else {
if (entry->sa_pair[slot].spi == sa_frame->spi) {
spin_unlock_irqrestore(&ha->sadb_lock, flags);
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: sadb slot %d entry for lid 0x%x, spi 0x%x found, sa_index %d\n",
__func__, slot, entry->handle, sa_frame->spi,
entry->sa_pair[slot].sa_index);
return entry->sa_pair[slot].sa_index;
}
}
}
spin_unlock_irqrestore(&ha->sadb_lock, flags);
/* both slots are used */
if (free_slot == -1) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: WARNING: No free slots in sadb for nport_handle 0x%x, spi: 0x%x\n",
__func__, entry->handle, sa_frame->spi);
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: Slot 0 spi: 0x%x sa_index: %d, Slot 1 spi: 0x%x sa_index: %d\n",
__func__, entry->sa_pair[0].spi, entry->sa_pair[0].sa_index,
entry->sa_pair[1].spi, entry->sa_pair[1].sa_index);
return INVALID_EDIF_SA_INDEX;
}
/* there is at least one free slot, use it */
sa_index = qla_edif_get_sa_index_from_freepool(fcport, dir);
if (sa_index == INVALID_EDIF_SA_INDEX) {
ql_dbg(ql_dbg_edif, fcport->vha, 0x3063,
"%s: empty freepool!!\n", __func__);
return INVALID_EDIF_SA_INDEX;
}
spin_lock_irqsave(&ha->sadb_lock, flags);
entry->sa_pair[free_slot].spi = sa_frame->spi;
entry->sa_pair[free_slot].sa_index = sa_index;
spin_unlock_irqrestore(&ha->sadb_lock, flags);
ql_dbg(ql_dbg_edif, fcport->vha, 0x3063,
"%s: sadb slot %d entry for nport_handle 0x%x, spi 0x%x added, returning sa_index %d\n",
__func__, free_slot, entry->handle, sa_frame->spi, sa_index);
return sa_index;
}
/* release any sadb entries -- only done at teardown */
void qla_edif_sadb_release(struct qla_hw_data *ha)
{
struct edif_sa_index_entry *entry, *tmp;
list_for_each_entry_safe(entry, tmp, &ha->sadb_rx_index_list, next) {
list_del(&entry->next);
kfree(entry);
}
list_for_each_entry_safe(entry, tmp, &ha->sadb_tx_index_list, next) {
list_del(&entry->next);
kfree(entry);
}
}
/**************************
* sadb freepool functions
**************************/
/* build the rx and tx sa_index free pools -- only done at fcport init */
int qla_edif_sadb_build_free_pool(struct qla_hw_data *ha)
{
ha->edif_tx_sa_id_map =
kcalloc(BITS_TO_LONGS(EDIF_NUM_SA_INDEX), sizeof(long), GFP_KERNEL);
if (!ha->edif_tx_sa_id_map) {
ql_log_pci(ql_log_fatal, ha->pdev, 0x0009,
"Unable to allocate memory for sadb tx.\n");
return -ENOMEM;
}
ha->edif_rx_sa_id_map =
kcalloc(BITS_TO_LONGS(EDIF_NUM_SA_INDEX), sizeof(long), GFP_KERNEL);
if (!ha->edif_rx_sa_id_map) {
kfree(ha->edif_tx_sa_id_map);
ha->edif_tx_sa_id_map = NULL;
ql_log_pci(ql_log_fatal, ha->pdev, 0x0009,
"Unable to allocate memory for sadb rx.\n");
return -ENOMEM;
}
return 0;
}
/* release the free pool - only done during fcport teardown */
void qla_edif_sadb_release_free_pool(struct qla_hw_data *ha)
{
kfree(ha->edif_tx_sa_id_map);
ha->edif_tx_sa_id_map = NULL;
kfree(ha->edif_rx_sa_id_map);
ha->edif_rx_sa_id_map = NULL;
}
static void __chk_edif_rx_sa_delete_pending(scsi_qla_host_t *vha,
fc_port_t *fcport, uint32_t handle, uint16_t sa_index)
{
struct edif_list_entry *edif_entry;
struct edif_sa_ctl *sa_ctl;
uint16_t delete_sa_index = INVALID_EDIF_SA_INDEX;
unsigned long flags = 0;
uint16_t nport_handle = fcport->loop_id;
uint16_t cached_nport_handle;
spin_lock_irqsave(&fcport->edif.indx_list_lock, flags);
edif_entry = qla_edif_list_find_sa_index(fcport, nport_handle);
if (!edif_entry) {
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
return; /* no pending delete for this handle */
}
/*
* check for no pending delete for this index or iocb does not
* match rx sa_index
*/
if (edif_entry->delete_sa_index == INVALID_EDIF_SA_INDEX ||
edif_entry->update_sa_index != sa_index) {
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
return;
}
/*
* wait until we have seen at least EDIF_DELAY_COUNT transfers before
* queueing RX delete
*/
if (edif_entry->count++ < EDIF_RX_DELETE_FILTER_COUNT) {
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
return;
}
ql_dbg(ql_dbg_edif, vha, 0x5033,
"%s: invalidating delete_sa_index, update_sa_index: 0x%x sa_index: 0x%x, delete_sa_index: 0x%x\n",
__func__, edif_entry->update_sa_index, sa_index, edif_entry->delete_sa_index);
delete_sa_index = edif_entry->delete_sa_index;
edif_entry->delete_sa_index = INVALID_EDIF_SA_INDEX;
cached_nport_handle = edif_entry->handle;
spin_unlock_irqrestore(&fcport->edif.indx_list_lock, flags);
/* sanity check on the nport handle */
if (nport_handle != cached_nport_handle) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: POST SA DELETE nport_handle mismatch: lid: 0x%x, edif_entry nph: 0x%x\n",
__func__, nport_handle, cached_nport_handle);
}
/* find the sa_ctl for the delete and schedule the delete */
sa_ctl = qla_edif_find_sa_ctl_by_index(fcport, delete_sa_index, 0);
if (sa_ctl) {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: POST SA DELETE sa_ctl: %p, index recvd %d\n",
__func__, sa_ctl, sa_index);
ql_dbg(ql_dbg_edif, vha, 0x3063,
"delete index %d, update index: %d, nport handle: 0x%x, handle: 0x%x\n",
delete_sa_index,
edif_entry->update_sa_index, nport_handle, handle);
sa_ctl->flags = EDIF_SA_CTL_FLG_DEL;
set_bit(EDIF_SA_CTL_REPL, &sa_ctl->state);
qla_post_sa_replace_work(fcport->vha, fcport,
nport_handle, sa_ctl);
} else {
ql_dbg(ql_dbg_edif, vha, 0x3063,
"%s: POST SA DELETE sa_ctl not found for delete_sa_index: %d\n",
__func__, delete_sa_index);
}
}
void qla_chk_edif_rx_sa_delete_pending(scsi_qla_host_t *vha,
srb_t *sp, struct sts_entry_24xx *sts24)
{
fc_port_t *fcport = sp->fcport;
/* sa_index used by this iocb */
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
uint32_t handle;
handle = (uint32_t)LSW(sts24->handle);
/* find out if this status iosb is for a scsi read */
if (cmd->sc_data_direction != DMA_FROM_DEVICE)
return;
return __chk_edif_rx_sa_delete_pending(vha, fcport, handle,
le16_to_cpu(sts24->edif_sa_index));
}
void qlt_chk_edif_rx_sa_delete_pending(scsi_qla_host_t *vha, fc_port_t *fcport,
struct ctio7_from_24xx *pkt)
{
__chk_edif_rx_sa_delete_pending(vha, fcport,
pkt->handle, le16_to_cpu(pkt->edif_sa_index));
}
static void qla_parse_auth_els_ctl(struct srb *sp)
{
struct qla_els_pt_arg *a = &sp->u.bsg_cmd.u.els_arg;
struct bsg_job *bsg_job = sp->u.bsg_cmd.bsg_job;
struct fc_bsg_request *request = bsg_job->request;
struct qla_bsg_auth_els_request *p =
(struct qla_bsg_auth_els_request *)bsg_job->request;
a->tx_len = a->tx_byte_count = sp->remap.req.len;
a->tx_addr = sp->remap.req.dma;
a->rx_len = a->rx_byte_count = sp->remap.rsp.len;
a->rx_addr = sp->remap.rsp.dma;
if (p->e.sub_cmd == SEND_ELS_REPLY) {
a->control_flags = p->e.extra_control_flags << 13;
a->rx_xchg_address = cpu_to_le32(p->e.extra_rx_xchg_address);
if (p->e.extra_control_flags == BSG_CTL_FLAG_LS_ACC)
a->els_opcode = ELS_LS_ACC;
else if (p->e.extra_control_flags == BSG_CTL_FLAG_LS_RJT)
a->els_opcode = ELS_LS_RJT;
}
a->did = sp->fcport->d_id;
a->els_opcode = request->rqst_data.h_els.command_code;
a->nport_handle = cpu_to_le16(sp->fcport->loop_id);
a->vp_idx = sp->vha->vp_idx;
}
int qla_edif_process_els(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
{
struct fc_bsg_request *bsg_request = bsg_job->request;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
fc_port_t *fcport = NULL;
struct qla_hw_data *ha = vha->hw;
srb_t *sp;
int rval = (DID_ERROR << 16), cnt;
port_id_t d_id;
struct qla_bsg_auth_els_request *p =
(struct qla_bsg_auth_els_request *)bsg_job->request;
struct qla_bsg_auth_els_reply *rpl =
(struct qla_bsg_auth_els_reply *)bsg_job->reply;
rpl->version = EDIF_VERSION1;
d_id.b.al_pa = bsg_request->rqst_data.h_els.port_id[2];
d_id.b.area = bsg_request->rqst_data.h_els.port_id[1];
d_id.b.domain = bsg_request->rqst_data.h_els.port_id[0];
/* find matching d_id in fcport list */
fcport = qla2x00_find_fcport_by_pid(vha, &d_id);
if (!fcport) {
ql_dbg(ql_dbg_edif, vha, 0x911a,
"%s fcport not find online portid=%06x.\n",
__func__, d_id.b24);
SET_DID_STATUS(bsg_reply->result, DID_ERROR);
return -EIO;
}
if (qla_bsg_check(vha, bsg_job, fcport))
return 0;
if (EDIF_SESS_DELETE(fcport)) {
ql_dbg(ql_dbg_edif, vha, 0x910d,
"%s ELS code %x, no loop id.\n", __func__,
bsg_request->rqst_data.r_els.els_code);
SET_DID_STATUS(bsg_reply->result, DID_BAD_TARGET);
return -ENXIO;
}
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x7005, "Host not online.\n");
SET_DID_STATUS(bsg_reply->result, DID_BAD_TARGET);
rval = -EIO;
goto done;
}
/* pass through is supported only for ISP 4Gb or higher */
if (!IS_FWI2_CAPABLE(ha)) {
ql_dbg(ql_dbg_user, vha, 0x7001,
"ELS passthru not supported for ISP23xx based adapters.\n");
SET_DID_STATUS(bsg_reply->result, DID_BAD_TARGET);
rval = -EPERM;
goto done;
}
sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
if (!sp) {
ql_dbg(ql_dbg_user, vha, 0x7004,
"Failed get sp pid=%06x\n", fcport->d_id.b24);
rval = -ENOMEM;
SET_DID_STATUS(bsg_reply->result, DID_IMM_RETRY);
goto done;
}
sp->remap.req.len = bsg_job->request_payload.payload_len;
sp->remap.req.buf = dma_pool_alloc(ha->purex_dma_pool,
GFP_KERNEL, &sp->remap.req.dma);
if (!sp->remap.req.buf) {
ql_dbg(ql_dbg_user, vha, 0x7005,
"Failed allocate request dma len=%x\n",
bsg_job->request_payload.payload_len);
rval = -ENOMEM;
SET_DID_STATUS(bsg_reply->result, DID_IMM_RETRY);
goto done_free_sp;
}
sp->remap.rsp.len = bsg_job->reply_payload.payload_len;
sp->remap.rsp.buf = dma_pool_alloc(ha->purex_dma_pool,
GFP_KERNEL, &sp->remap.rsp.dma);
if (!sp->remap.rsp.buf) {
ql_dbg(ql_dbg_user, vha, 0x7006,
"Failed allocate response dma len=%x\n",
bsg_job->reply_payload.payload_len);
rval = -ENOMEM;
SET_DID_STATUS(bsg_reply->result, DID_IMM_RETRY);
goto done_free_remap_req;
}
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, sp->remap.req.buf,
sp->remap.req.len);
sp->remap.remapped = true;
sp->type = SRB_ELS_CMD_HST_NOLOGIN;
sp->name = "SPCN_BSG_HST_NOLOGIN";
sp->u.bsg_cmd.bsg_job = bsg_job;
qla_parse_auth_els_ctl(sp);
sp->free = qla2x00_bsg_sp_free;
sp->done = qla2x00_bsg_job_done;
cnt = 0;
retry:
rval = qla2x00_start_sp(sp);
switch (rval) {
case QLA_SUCCESS:
ql_dbg(ql_dbg_edif, vha, 0x700a,
"%s %s %8phN xchg %x ctlflag %x hdl %x reqlen %xh bsg ptr %p\n",
__func__, sc_to_str(p->e.sub_cmd), fcport->port_name,
p->e.extra_rx_xchg_address, p->e.extra_control_flags,
sp->handle, sp->remap.req.len, bsg_job);
break;
case EAGAIN:
msleep(EDIF_MSLEEP_INTERVAL);
cnt++;
if (cnt < EDIF_RETRY_COUNT)
goto retry;
fallthrough;
default:
ql_log(ql_log_warn, vha, 0x700e,
"%s qla2x00_start_sp failed = %d\n", __func__, rval);
SET_DID_STATUS(bsg_reply->result, DID_IMM_RETRY);
rval = -EIO;
goto done_free_remap_rsp;
}
return rval;
done_free_remap_rsp:
dma_pool_free(ha->purex_dma_pool, sp->remap.rsp.buf,
sp->remap.rsp.dma);
done_free_remap_req:
dma_pool_free(ha->purex_dma_pool, sp->remap.req.buf,
sp->remap.req.dma);
done_free_sp:
qla2x00_rel_sp(sp);
done:
return rval;
}
void qla_edif_sess_down(struct scsi_qla_host *vha, struct fc_port *sess)
{
u16 cnt = 0;
if (sess->edif.app_sess_online && DBELL_ACTIVE(vha)) {
ql_dbg(ql_dbg_disc, vha, 0xf09c,
"%s: sess %8phN send port_offline event\n",
__func__, sess->port_name);
sess->edif.app_sess_online = 0;
sess->edif.sess_down_acked = 0;
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_SESSION_SHUTDOWN,
sess->d_id.b24, 0, sess);
qla2x00_post_aen_work(vha, FCH_EVT_PORT_OFFLINE, sess->d_id.b24);
while (!READ_ONCE(sess->edif.sess_down_acked) &&
!test_bit(VPORT_DELETE, &vha->dpc_flags)) {
msleep(100);
cnt++;
if (cnt > 100)
break;
}
sess->edif.sess_down_acked = 0;
ql_dbg(ql_dbg_disc, vha, 0xf09c,
"%s: sess %8phN port_offline event completed\n",
__func__, sess->port_name);
}
}
void qla_edif_clear_appdata(struct scsi_qla_host *vha, struct fc_port *fcport)
{
if (!(fcport->flags & FCF_FCSP_DEVICE))
return;
qla_edb_clear(vha, fcport->d_id);
qla_enode_clear(vha, fcport->d_id);
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_edif.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
/*
* Table for showing the current message id in use for particular level
* Change this table for addition of log/debug messages.
* ----------------------------------------------------------------------
* | Level | Last Value Used | Holes |
* ----------------------------------------------------------------------
* | Module Init and Probe | 0x0199 | |
* | Mailbox commands | 0x1206 | 0x11a5-0x11ff |
* | Device Discovery | 0x2134 | 0x2112-0x2115 |
* | | | 0x2127-0x2128 |
* | Queue Command and IO tracing | 0x3074 | 0x300b |
* | | | 0x3027-0x3028 |
* | | | 0x303d-0x3041 |
* | | | 0x302e,0x3033 |
* | | | 0x3036,0x3038 |
* | | | 0x303a |
* | DPC Thread | 0x4023 | 0x4002,0x4013 |
* | Async Events | 0x509c | |
* | Timer Routines | 0x6012 | |
* | User Space Interactions | 0x70e3 | 0x7018,0x702e |
* | | | 0x7020,0x7024 |
* | | | 0x7039,0x7045 |
* | | | 0x7073-0x7075 |
* | | | 0x70a5-0x70a6 |
* | | | 0x70a8,0x70ab |
* | | | 0x70ad-0x70ae |
* | | | 0x70d0-0x70d6 |
* | | | 0x70d7-0x70db |
* | Task Management | 0x8042 | 0x8000 |
* | | | 0x8019 |
* | | | 0x8025,0x8026 |
* | | | 0x8031,0x8032 |
* | | | 0x8039,0x803c |
* | AER/EEH | 0x9011 | |
* | Virtual Port | 0xa007 | |
* | ISP82XX Specific | 0xb157 | 0xb002,0xb024 |
* | | | 0xb09e,0xb0ae |
* | | | 0xb0c3,0xb0c6 |
* | | | 0xb0e0-0xb0ef |
* | | | 0xb085,0xb0dc |
* | | | 0xb107,0xb108 |
* | | | 0xb111,0xb11e |
* | | | 0xb12c,0xb12d |
* | | | 0xb13a,0xb142 |
* | | | 0xb13c-0xb140 |
* | | | 0xb149 |
* | MultiQ | 0xc010 | |
* | Misc | 0xd303 | 0xd031-0xd0ff |
* | | | 0xd101-0xd1fe |
* | | | 0xd214-0xd2fe |
* | Target Mode | 0xe081 | |
* | Target Mode Management | 0xf09b | 0xf002 |
* | | | 0xf046-0xf049 |
* | Target Mode Task Management | 0x1000d | |
* ----------------------------------------------------------------------
*/
#include "qla_def.h"
#include <linux/delay.h>
#define CREATE_TRACE_POINTS
#include <trace/events/qla.h>
static uint32_t ql_dbg_offset = 0x800;
static inline void
qla2xxx_prep_dump(struct qla_hw_data *ha, struct qla2xxx_fw_dump *fw_dump)
{
fw_dump->fw_major_version = htonl(ha->fw_major_version);
fw_dump->fw_minor_version = htonl(ha->fw_minor_version);
fw_dump->fw_subminor_version = htonl(ha->fw_subminor_version);
fw_dump->fw_attributes = htonl(ha->fw_attributes);
fw_dump->vendor = htonl(ha->pdev->vendor);
fw_dump->device = htonl(ha->pdev->device);
fw_dump->subsystem_vendor = htonl(ha->pdev->subsystem_vendor);
fw_dump->subsystem_device = htonl(ha->pdev->subsystem_device);
}
static inline void *
qla2xxx_copy_queues(struct qla_hw_data *ha, void *ptr)
{
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
/* Request queue. */
memcpy(ptr, req->ring, req->length *
sizeof(request_t));
/* Response queue. */
ptr += req->length * sizeof(request_t);
memcpy(ptr, rsp->ring, rsp->length *
sizeof(response_t));
return ptr + (rsp->length * sizeof(response_t));
}
int
qla27xx_dump_mpi_ram(struct qla_hw_data *ha, uint32_t addr, uint32_t *ram,
uint32_t ram_dwords, void **nxt)
{
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
dma_addr_t dump_dma = ha->gid_list_dma;
uint32_t *chunk = (uint32_t *)ha->gid_list;
uint32_t dwords = qla2x00_gid_list_size(ha) / 4;
uint32_t stat;
ulong i, j, timer = 6000000;
int rval = QLA_FUNCTION_FAILED;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
if (qla_pci_disconnected(vha, reg))
return rval;
for (i = 0; i < ram_dwords; i += dwords, addr += dwords) {
if (i + dwords > ram_dwords)
dwords = ram_dwords - i;
wrt_reg_word(®->mailbox0, MBC_LOAD_DUMP_MPI_RAM);
wrt_reg_word(®->mailbox1, LSW(addr));
wrt_reg_word(®->mailbox8, MSW(addr));
wrt_reg_word(®->mailbox2, MSW(LSD(dump_dma)));
wrt_reg_word(®->mailbox3, LSW(LSD(dump_dma)));
wrt_reg_word(®->mailbox6, MSW(MSD(dump_dma)));
wrt_reg_word(®->mailbox7, LSW(MSD(dump_dma)));
wrt_reg_word(®->mailbox4, MSW(dwords));
wrt_reg_word(®->mailbox5, LSW(dwords));
wrt_reg_word(®->mailbox9, 0);
wrt_reg_dword(®->hccr, HCCRX_SET_HOST_INT);
ha->flags.mbox_int = 0;
while (timer--) {
udelay(5);
if (qla_pci_disconnected(vha, reg))
return rval;
stat = rd_reg_dword(®->host_status);
/* Check for pending interrupts. */
if (!(stat & HSRX_RISC_INT))
continue;
stat &= 0xff;
if (stat != 0x1 && stat != 0x2 &&
stat != 0x10 && stat != 0x11) {
/* Clear this intr; it wasn't a mailbox intr */
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
rd_reg_dword(®->hccr);
continue;
}
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
rval = rd_reg_word(®->mailbox0) & MBS_MASK;
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
rd_reg_dword(®->hccr);
break;
}
ha->flags.mbox_int = 1;
*nxt = ram + i;
if (!test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
/* no interrupt, timed out*/
return rval;
}
if (rval) {
/* error completion status */
return rval;
}
for (j = 0; j < dwords; j++) {
ram[i + j] =
(IS_QLA27XX(ha) || IS_QLA28XX(ha)) ?
chunk[j] : swab32(chunk[j]);
}
}
*nxt = ram + i;
return QLA_SUCCESS;
}
int
qla24xx_dump_ram(struct qla_hw_data *ha, uint32_t addr, __be32 *ram,
uint32_t ram_dwords, void **nxt)
{
int rval = QLA_FUNCTION_FAILED;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
dma_addr_t dump_dma = ha->gid_list_dma;
uint32_t *chunk = (uint32_t *)ha->gid_list;
uint32_t dwords = qla2x00_gid_list_size(ha) / 4;
uint32_t stat;
ulong i, j, timer = 6000000;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
if (qla_pci_disconnected(vha, reg))
return rval;
for (i = 0; i < ram_dwords; i += dwords, addr += dwords) {
if (i + dwords > ram_dwords)
dwords = ram_dwords - i;
wrt_reg_word(®->mailbox0, MBC_DUMP_RISC_RAM_EXTENDED);
wrt_reg_word(®->mailbox1, LSW(addr));
wrt_reg_word(®->mailbox8, MSW(addr));
wrt_reg_word(®->mailbox10, 0);
wrt_reg_word(®->mailbox2, MSW(LSD(dump_dma)));
wrt_reg_word(®->mailbox3, LSW(LSD(dump_dma)));
wrt_reg_word(®->mailbox6, MSW(MSD(dump_dma)));
wrt_reg_word(®->mailbox7, LSW(MSD(dump_dma)));
wrt_reg_word(®->mailbox4, MSW(dwords));
wrt_reg_word(®->mailbox5, LSW(dwords));
wrt_reg_dword(®->hccr, HCCRX_SET_HOST_INT);
ha->flags.mbox_int = 0;
while (timer--) {
udelay(5);
if (qla_pci_disconnected(vha, reg))
return rval;
stat = rd_reg_dword(®->host_status);
/* Check for pending interrupts. */
if (!(stat & HSRX_RISC_INT))
continue;
stat &= 0xff;
if (stat != 0x1 && stat != 0x2 &&
stat != 0x10 && stat != 0x11) {
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
rd_reg_dword(®->hccr);
continue;
}
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
rval = rd_reg_word(®->mailbox0) & MBS_MASK;
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT);
rd_reg_dword(®->hccr);
break;
}
ha->flags.mbox_int = 1;
*nxt = ram + i;
if (!test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
/* no interrupt, timed out*/
return rval;
}
if (rval) {
/* error completion status */
return rval;
}
for (j = 0; j < dwords; j++) {
ram[i + j] = (__force __be32)
((IS_QLA27XX(ha) || IS_QLA28XX(ha)) ?
chunk[j] : swab32(chunk[j]));
}
}
*nxt = ram + i;
return QLA_SUCCESS;
}
static int
qla24xx_dump_memory(struct qla_hw_data *ha, __be32 *code_ram,
uint32_t cram_size, void **nxt)
{
int rval;
/* Code RAM. */
rval = qla24xx_dump_ram(ha, 0x20000, code_ram, cram_size / 4, nxt);
if (rval != QLA_SUCCESS)
return rval;
set_bit(RISC_SRAM_DUMP_CMPL, &ha->fw_dump_cap_flags);
/* External Memory. */
rval = qla24xx_dump_ram(ha, 0x100000, *nxt,
ha->fw_memory_size - 0x100000 + 1, nxt);
if (rval == QLA_SUCCESS)
set_bit(RISC_EXT_MEM_DUMP_CMPL, &ha->fw_dump_cap_flags);
return rval;
}
static __be32 *
qla24xx_read_window(struct device_reg_24xx __iomem *reg, uint32_t iobase,
uint32_t count, __be32 *buf)
{
__le32 __iomem *dmp_reg;
wrt_reg_dword(®->iobase_addr, iobase);
dmp_reg = ®->iobase_window;
for ( ; count--; dmp_reg++)
*buf++ = htonl(rd_reg_dword(dmp_reg));
return buf;
}
void
qla24xx_pause_risc(struct device_reg_24xx __iomem *reg, struct qla_hw_data *ha)
{
wrt_reg_dword(®->hccr, HCCRX_SET_RISC_PAUSE);
/* 100 usec delay is sufficient enough for hardware to pause RISC */
udelay(100);
if (rd_reg_dword(®->host_status) & HSRX_RISC_PAUSED)
set_bit(RISC_PAUSE_CMPL, &ha->fw_dump_cap_flags);
}
int
qla24xx_soft_reset(struct qla_hw_data *ha)
{
int rval = QLA_SUCCESS;
uint32_t cnt;
uint16_t wd;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
/*
* Reset RISC. The delay is dependent on system architecture.
* Driver can proceed with the reset sequence after waiting
* for a timeout period.
*/
wrt_reg_dword(®->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
for (cnt = 0; cnt < 30000; cnt++) {
if ((rd_reg_dword(®->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
break;
udelay(10);
}
if (!(rd_reg_dword(®->ctrl_status) & CSRX_DMA_ACTIVE))
set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags);
wrt_reg_dword(®->ctrl_status,
CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
udelay(100);
/* Wait for soft-reset to complete. */
for (cnt = 0; cnt < 30000; cnt++) {
if ((rd_reg_dword(®->ctrl_status) &
CSRX_ISP_SOFT_RESET) == 0)
break;
udelay(10);
}
if (!(rd_reg_dword(®->ctrl_status) & CSRX_ISP_SOFT_RESET))
set_bit(ISP_RESET_CMPL, &ha->fw_dump_cap_flags);
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_RESET);
rd_reg_dword(®->hccr); /* PCI Posting. */
for (cnt = 10000; rd_reg_word(®->mailbox0) != 0 &&
rval == QLA_SUCCESS; cnt--) {
if (cnt)
udelay(10);
else
rval = QLA_FUNCTION_TIMEOUT;
}
if (rval == QLA_SUCCESS)
set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
return rval;
}
static int
qla2xxx_dump_ram(struct qla_hw_data *ha, uint32_t addr, __be16 *ram,
uint32_t ram_words, void **nxt)
{
int rval;
uint32_t cnt, stat, timer, words, idx;
uint16_t mb0;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
dma_addr_t dump_dma = ha->gid_list_dma;
__le16 *dump = (__force __le16 *)ha->gid_list;
rval = QLA_SUCCESS;
mb0 = 0;
WRT_MAILBOX_REG(ha, reg, 0, MBC_DUMP_RISC_RAM_EXTENDED);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
words = qla2x00_gid_list_size(ha) / 2;
for (cnt = 0; cnt < ram_words && rval == QLA_SUCCESS;
cnt += words, addr += words) {
if (cnt + words > ram_words)
words = ram_words - cnt;
WRT_MAILBOX_REG(ha, reg, 1, LSW(addr));
WRT_MAILBOX_REG(ha, reg, 8, MSW(addr));
WRT_MAILBOX_REG(ha, reg, 2, MSW(dump_dma));
WRT_MAILBOX_REG(ha, reg, 3, LSW(dump_dma));
WRT_MAILBOX_REG(ha, reg, 6, MSW(MSD(dump_dma)));
WRT_MAILBOX_REG(ha, reg, 7, LSW(MSD(dump_dma)));
WRT_MAILBOX_REG(ha, reg, 4, words);
wrt_reg_word(®->hccr, HCCR_SET_HOST_INT);
for (timer = 6000000; timer; timer--) {
/* Check for pending interrupts. */
stat = rd_reg_dword(®->u.isp2300.host_status);
if (stat & HSR_RISC_INT) {
stat &= 0xff;
if (stat == 0x1 || stat == 0x2) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
/* Release mailbox registers. */
wrt_reg_word(®->semaphore, 0);
wrt_reg_word(®->hccr,
HCCR_CLR_RISC_INT);
rd_reg_word(®->hccr);
break;
} else if (stat == 0x10 || stat == 0x11) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
wrt_reg_word(®->hccr,
HCCR_CLR_RISC_INT);
rd_reg_word(®->hccr);
break;
}
/* clear this intr; it wasn't a mailbox intr */
wrt_reg_word(®->hccr, HCCR_CLR_RISC_INT);
rd_reg_word(®->hccr);
}
udelay(5);
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
rval = mb0 & MBS_MASK;
for (idx = 0; idx < words; idx++)
ram[cnt + idx] =
cpu_to_be16(le16_to_cpu(dump[idx]));
} else {
rval = QLA_FUNCTION_FAILED;
}
}
*nxt = rval == QLA_SUCCESS ? &ram[cnt] : NULL;
return rval;
}
static inline void
qla2xxx_read_window(struct device_reg_2xxx __iomem *reg, uint32_t count,
__be16 *buf)
{
__le16 __iomem *dmp_reg = ®->u.isp2300.fb_cmd;
for ( ; count--; dmp_reg++)
*buf++ = htons(rd_reg_word(dmp_reg));
}
static inline void *
qla24xx_copy_eft(struct qla_hw_data *ha, void *ptr)
{
if (!ha->eft)
return ptr;
memcpy(ptr, ha->eft, ntohl(ha->fw_dump->eft_size));
return ptr + ntohl(ha->fw_dump->eft_size);
}
static inline void *
qla25xx_copy_fce(struct qla_hw_data *ha, void *ptr, __be32 **last_chain)
{
uint32_t cnt;
__be32 *iter_reg;
struct qla2xxx_fce_chain *fcec = ptr;
if (!ha->fce)
return ptr;
*last_chain = &fcec->type;
fcec->type = htonl(DUMP_CHAIN_FCE);
fcec->chain_size = htonl(sizeof(struct qla2xxx_fce_chain) +
fce_calc_size(ha->fce_bufs));
fcec->size = htonl(fce_calc_size(ha->fce_bufs));
fcec->addr_l = htonl(LSD(ha->fce_dma));
fcec->addr_h = htonl(MSD(ha->fce_dma));
iter_reg = fcec->eregs;
for (cnt = 0; cnt < 8; cnt++)
*iter_reg++ = htonl(ha->fce_mb[cnt]);
memcpy(iter_reg, ha->fce, ntohl(fcec->size));
return (char *)iter_reg + ntohl(fcec->size);
}
static inline void *
qla25xx_copy_exlogin(struct qla_hw_data *ha, void *ptr, __be32 **last_chain)
{
struct qla2xxx_offld_chain *c = ptr;
if (!ha->exlogin_buf)
return ptr;
*last_chain = &c->type;
c->type = cpu_to_be32(DUMP_CHAIN_EXLOGIN);
c->chain_size = cpu_to_be32(sizeof(struct qla2xxx_offld_chain) +
ha->exlogin_size);
c->size = cpu_to_be32(ha->exlogin_size);
c->addr = cpu_to_be64(ha->exlogin_buf_dma);
ptr += sizeof(struct qla2xxx_offld_chain);
memcpy(ptr, ha->exlogin_buf, ha->exlogin_size);
return (char *)ptr + be32_to_cpu(c->size);
}
static inline void *
qla81xx_copy_exchoffld(struct qla_hw_data *ha, void *ptr, __be32 **last_chain)
{
struct qla2xxx_offld_chain *c = ptr;
if (!ha->exchoffld_buf)
return ptr;
*last_chain = &c->type;
c->type = cpu_to_be32(DUMP_CHAIN_EXCHG);
c->chain_size = cpu_to_be32(sizeof(struct qla2xxx_offld_chain) +
ha->exchoffld_size);
c->size = cpu_to_be32(ha->exchoffld_size);
c->addr = cpu_to_be64(ha->exchoffld_buf_dma);
ptr += sizeof(struct qla2xxx_offld_chain);
memcpy(ptr, ha->exchoffld_buf, ha->exchoffld_size);
return (char *)ptr + be32_to_cpu(c->size);
}
static inline void *
qla2xxx_copy_atioqueues(struct qla_hw_data *ha, void *ptr,
__be32 **last_chain)
{
struct qla2xxx_mqueue_chain *q;
struct qla2xxx_mqueue_header *qh;
uint32_t num_queues;
int que;
struct {
int length;
void *ring;
} aq, *aqp;
if (!ha->tgt.atio_ring)
return ptr;
num_queues = 1;
aqp = &aq;
aqp->length = ha->tgt.atio_q_length;
aqp->ring = ha->tgt.atio_ring;
for (que = 0; que < num_queues; que++) {
/* aqp = ha->atio_q_map[que]; */
q = ptr;
*last_chain = &q->type;
q->type = htonl(DUMP_CHAIN_QUEUE);
q->chain_size = htonl(
sizeof(struct qla2xxx_mqueue_chain) +
sizeof(struct qla2xxx_mqueue_header) +
(aqp->length * sizeof(request_t)));
ptr += sizeof(struct qla2xxx_mqueue_chain);
/* Add header. */
qh = ptr;
qh->queue = htonl(TYPE_ATIO_QUEUE);
qh->number = htonl(que);
qh->size = htonl(aqp->length * sizeof(request_t));
ptr += sizeof(struct qla2xxx_mqueue_header);
/* Add data. */
memcpy(ptr, aqp->ring, aqp->length * sizeof(request_t));
ptr += aqp->length * sizeof(request_t);
}
return ptr;
}
static inline void *
qla25xx_copy_mqueues(struct qla_hw_data *ha, void *ptr, __be32 **last_chain)
{
struct qla2xxx_mqueue_chain *q;
struct qla2xxx_mqueue_header *qh;
struct req_que *req;
struct rsp_que *rsp;
int que;
if (!ha->mqenable)
return ptr;
/* Request queues */
for (que = 1; que < ha->max_req_queues; que++) {
req = ha->req_q_map[que];
if (!req)
break;
/* Add chain. */
q = ptr;
*last_chain = &q->type;
q->type = htonl(DUMP_CHAIN_QUEUE);
q->chain_size = htonl(
sizeof(struct qla2xxx_mqueue_chain) +
sizeof(struct qla2xxx_mqueue_header) +
(req->length * sizeof(request_t)));
ptr += sizeof(struct qla2xxx_mqueue_chain);
/* Add header. */
qh = ptr;
qh->queue = htonl(TYPE_REQUEST_QUEUE);
qh->number = htonl(que);
qh->size = htonl(req->length * sizeof(request_t));
ptr += sizeof(struct qla2xxx_mqueue_header);
/* Add data. */
memcpy(ptr, req->ring, req->length * sizeof(request_t));
ptr += req->length * sizeof(request_t);
}
/* Response queues */
for (que = 1; que < ha->max_rsp_queues; que++) {
rsp = ha->rsp_q_map[que];
if (!rsp)
break;
/* Add chain. */
q = ptr;
*last_chain = &q->type;
q->type = htonl(DUMP_CHAIN_QUEUE);
q->chain_size = htonl(
sizeof(struct qla2xxx_mqueue_chain) +
sizeof(struct qla2xxx_mqueue_header) +
(rsp->length * sizeof(response_t)));
ptr += sizeof(struct qla2xxx_mqueue_chain);
/* Add header. */
qh = ptr;
qh->queue = htonl(TYPE_RESPONSE_QUEUE);
qh->number = htonl(que);
qh->size = htonl(rsp->length * sizeof(response_t));
ptr += sizeof(struct qla2xxx_mqueue_header);
/* Add data. */
memcpy(ptr, rsp->ring, rsp->length * sizeof(response_t));
ptr += rsp->length * sizeof(response_t);
}
return ptr;
}
static inline void *
qla25xx_copy_mq(struct qla_hw_data *ha, void *ptr, __be32 **last_chain)
{
uint32_t cnt, que_idx;
uint8_t que_cnt;
struct qla2xxx_mq_chain *mq = ptr;
device_reg_t *reg;
if (!ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
IS_QLA28XX(ha))
return ptr;
mq = ptr;
*last_chain = &mq->type;
mq->type = htonl(DUMP_CHAIN_MQ);
mq->chain_size = htonl(sizeof(struct qla2xxx_mq_chain));
que_cnt = ha->max_req_queues > ha->max_rsp_queues ?
ha->max_req_queues : ha->max_rsp_queues;
mq->count = htonl(que_cnt);
for (cnt = 0; cnt < que_cnt; cnt++) {
reg = ISP_QUE_REG(ha, cnt);
que_idx = cnt * 4;
mq->qregs[que_idx] =
htonl(rd_reg_dword(®->isp25mq.req_q_in));
mq->qregs[que_idx+1] =
htonl(rd_reg_dword(®->isp25mq.req_q_out));
mq->qregs[que_idx+2] =
htonl(rd_reg_dword(®->isp25mq.rsp_q_in));
mq->qregs[que_idx+3] =
htonl(rd_reg_dword(®->isp25mq.rsp_q_out));
}
return ptr + sizeof(struct qla2xxx_mq_chain);
}
void
qla2xxx_dump_post_process(scsi_qla_host_t *vha, int rval)
{
struct qla_hw_data *ha = vha->hw;
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xd000,
"Failed to dump firmware (%x), dump status flags (0x%lx).\n",
rval, ha->fw_dump_cap_flags);
ha->fw_dumped = false;
} else {
ql_log(ql_log_info, vha, 0xd001,
"Firmware dump saved to temp buffer (%ld/%p), dump status flags (0x%lx).\n",
vha->host_no, ha->fw_dump, ha->fw_dump_cap_flags);
ha->fw_dumped = true;
qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
}
}
void qla2xxx_dump_fw(scsi_qla_host_t *vha)
{
unsigned long flags;
spin_lock_irqsave(&vha->hw->hardware_lock, flags);
vha->hw->isp_ops->fw_dump(vha);
spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
}
/**
* qla2300_fw_dump() - Dumps binary data from the 2300 firmware.
* @vha: HA context
*/
void
qla2300_fw_dump(scsi_qla_host_t *vha)
{
int rval;
uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
__le16 __iomem *dmp_reg;
struct qla2300_fw_dump *fw;
void *nxt;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
lockdep_assert_held(&ha->hardware_lock);
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd002,
"No buffer available for dump.\n");
return;
}
if (ha->fw_dumped) {
ql_log(ql_log_warn, vha, 0xd003,
"Firmware has been previously dumped (%p) "
"-- ignoring request.\n",
ha->fw_dump);
return;
}
fw = &ha->fw_dump->isp.isp23;
qla2xxx_prep_dump(ha, ha->fw_dump);
rval = QLA_SUCCESS;
fw->hccr = htons(rd_reg_word(®->hccr));
/* Pause RISC. */
wrt_reg_word(®->hccr, HCCR_PAUSE_RISC);
if (IS_QLA2300(ha)) {
for (cnt = 30000;
(rd_reg_word(®->hccr) & HCCR_RISC_PAUSE) == 0 &&
rval == QLA_SUCCESS; cnt--) {
if (cnt)
udelay(100);
else
rval = QLA_FUNCTION_TIMEOUT;
}
} else {
rd_reg_word(®->hccr); /* PCI Posting. */
udelay(10);
}
if (rval == QLA_SUCCESS) {
dmp_reg = ®->flash_address;
for (cnt = 0; cnt < ARRAY_SIZE(fw->pbiu_reg); cnt++, dmp_reg++)
fw->pbiu_reg[cnt] = htons(rd_reg_word(dmp_reg));
dmp_reg = ®->u.isp2300.req_q_in;
for (cnt = 0; cnt < ARRAY_SIZE(fw->risc_host_reg);
cnt++, dmp_reg++)
fw->risc_host_reg[cnt] = htons(rd_reg_word(dmp_reg));
dmp_reg = ®->u.isp2300.mailbox0;
for (cnt = 0; cnt < ARRAY_SIZE(fw->mailbox_reg);
cnt++, dmp_reg++)
fw->mailbox_reg[cnt] = htons(rd_reg_word(dmp_reg));
wrt_reg_word(®->ctrl_status, 0x40);
qla2xxx_read_window(reg, 32, fw->resp_dma_reg);
wrt_reg_word(®->ctrl_status, 0x50);
qla2xxx_read_window(reg, 48, fw->dma_reg);
wrt_reg_word(®->ctrl_status, 0x00);
dmp_reg = ®->risc_hw;
for (cnt = 0; cnt < ARRAY_SIZE(fw->risc_hdw_reg);
cnt++, dmp_reg++)
fw->risc_hdw_reg[cnt] = htons(rd_reg_word(dmp_reg));
wrt_reg_word(®->pcr, 0x2000);
qla2xxx_read_window(reg, 16, fw->risc_gp0_reg);
wrt_reg_word(®->pcr, 0x2200);
qla2xxx_read_window(reg, 16, fw->risc_gp1_reg);
wrt_reg_word(®->pcr, 0x2400);
qla2xxx_read_window(reg, 16, fw->risc_gp2_reg);
wrt_reg_word(®->pcr, 0x2600);
qla2xxx_read_window(reg, 16, fw->risc_gp3_reg);
wrt_reg_word(®->pcr, 0x2800);
qla2xxx_read_window(reg, 16, fw->risc_gp4_reg);
wrt_reg_word(®->pcr, 0x2A00);
qla2xxx_read_window(reg, 16, fw->risc_gp5_reg);
wrt_reg_word(®->pcr, 0x2C00);
qla2xxx_read_window(reg, 16, fw->risc_gp6_reg);
wrt_reg_word(®->pcr, 0x2E00);
qla2xxx_read_window(reg, 16, fw->risc_gp7_reg);
wrt_reg_word(®->ctrl_status, 0x10);
qla2xxx_read_window(reg, 64, fw->frame_buf_hdw_reg);
wrt_reg_word(®->ctrl_status, 0x20);
qla2xxx_read_window(reg, 64, fw->fpm_b0_reg);
wrt_reg_word(®->ctrl_status, 0x30);
qla2xxx_read_window(reg, 64, fw->fpm_b1_reg);
/* Reset RISC. */
wrt_reg_word(®->ctrl_status, CSR_ISP_SOFT_RESET);
for (cnt = 0; cnt < 30000; cnt++) {
if ((rd_reg_word(®->ctrl_status) &
CSR_ISP_SOFT_RESET) == 0)
break;
udelay(10);
}
}
if (!IS_QLA2300(ha)) {
for (cnt = 30000; RD_MAILBOX_REG(ha, reg, 0) != 0 &&
rval == QLA_SUCCESS; cnt--) {
if (cnt)
udelay(100);
else
rval = QLA_FUNCTION_TIMEOUT;
}
}
/* Get RISC SRAM. */
if (rval == QLA_SUCCESS)
rval = qla2xxx_dump_ram(ha, 0x800, fw->risc_ram,
ARRAY_SIZE(fw->risc_ram), &nxt);
/* Get stack SRAM. */
if (rval == QLA_SUCCESS)
rval = qla2xxx_dump_ram(ha, 0x10000, fw->stack_ram,
ARRAY_SIZE(fw->stack_ram), &nxt);
/* Get data SRAM. */
if (rval == QLA_SUCCESS)
rval = qla2xxx_dump_ram(ha, 0x11000, fw->data_ram,
ha->fw_memory_size - 0x11000 + 1, &nxt);
if (rval == QLA_SUCCESS)
qla2xxx_copy_queues(ha, nxt);
qla2xxx_dump_post_process(base_vha, rval);
}
/**
* qla2100_fw_dump() - Dumps binary data from the 2100/2200 firmware.
* @vha: HA context
*/
void
qla2100_fw_dump(scsi_qla_host_t *vha)
{
int rval;
uint32_t cnt, timer;
uint16_t risc_address = 0;
uint16_t mb0 = 0, mb2 = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
__le16 __iomem *dmp_reg;
struct qla2100_fw_dump *fw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
lockdep_assert_held(&ha->hardware_lock);
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd004,
"No buffer available for dump.\n");
return;
}
if (ha->fw_dumped) {
ql_log(ql_log_warn, vha, 0xd005,
"Firmware has been previously dumped (%p) "
"-- ignoring request.\n",
ha->fw_dump);
return;
}
fw = &ha->fw_dump->isp.isp21;
qla2xxx_prep_dump(ha, ha->fw_dump);
rval = QLA_SUCCESS;
fw->hccr = htons(rd_reg_word(®->hccr));
/* Pause RISC. */
wrt_reg_word(®->hccr, HCCR_PAUSE_RISC);
for (cnt = 30000; (rd_reg_word(®->hccr) & HCCR_RISC_PAUSE) == 0 &&
rval == QLA_SUCCESS; cnt--) {
if (cnt)
udelay(100);
else
rval = QLA_FUNCTION_TIMEOUT;
}
if (rval == QLA_SUCCESS) {
dmp_reg = ®->flash_address;
for (cnt = 0; cnt < ARRAY_SIZE(fw->pbiu_reg); cnt++, dmp_reg++)
fw->pbiu_reg[cnt] = htons(rd_reg_word(dmp_reg));
dmp_reg = ®->u.isp2100.mailbox0;
for (cnt = 0; cnt < ha->mbx_count; cnt++, dmp_reg++) {
if (cnt == 8)
dmp_reg = ®->u_end.isp2200.mailbox8;
fw->mailbox_reg[cnt] = htons(rd_reg_word(dmp_reg));
}
dmp_reg = ®->u.isp2100.unused_2[0];
for (cnt = 0; cnt < ARRAY_SIZE(fw->dma_reg); cnt++, dmp_reg++)
fw->dma_reg[cnt] = htons(rd_reg_word(dmp_reg));
wrt_reg_word(®->ctrl_status, 0x00);
dmp_reg = ®->risc_hw;
for (cnt = 0; cnt < ARRAY_SIZE(fw->risc_hdw_reg); cnt++, dmp_reg++)
fw->risc_hdw_reg[cnt] = htons(rd_reg_word(dmp_reg));
wrt_reg_word(®->pcr, 0x2000);
qla2xxx_read_window(reg, 16, fw->risc_gp0_reg);
wrt_reg_word(®->pcr, 0x2100);
qla2xxx_read_window(reg, 16, fw->risc_gp1_reg);
wrt_reg_word(®->pcr, 0x2200);
qla2xxx_read_window(reg, 16, fw->risc_gp2_reg);
wrt_reg_word(®->pcr, 0x2300);
qla2xxx_read_window(reg, 16, fw->risc_gp3_reg);
wrt_reg_word(®->pcr, 0x2400);
qla2xxx_read_window(reg, 16, fw->risc_gp4_reg);
wrt_reg_word(®->pcr, 0x2500);
qla2xxx_read_window(reg, 16, fw->risc_gp5_reg);
wrt_reg_word(®->pcr, 0x2600);
qla2xxx_read_window(reg, 16, fw->risc_gp6_reg);
wrt_reg_word(®->pcr, 0x2700);
qla2xxx_read_window(reg, 16, fw->risc_gp7_reg);
wrt_reg_word(®->ctrl_status, 0x10);
qla2xxx_read_window(reg, 16, fw->frame_buf_hdw_reg);
wrt_reg_word(®->ctrl_status, 0x20);
qla2xxx_read_window(reg, 64, fw->fpm_b0_reg);
wrt_reg_word(®->ctrl_status, 0x30);
qla2xxx_read_window(reg, 64, fw->fpm_b1_reg);
/* Reset the ISP. */
wrt_reg_word(®->ctrl_status, CSR_ISP_SOFT_RESET);
}
for (cnt = 30000; RD_MAILBOX_REG(ha, reg, 0) != 0 &&
rval == QLA_SUCCESS; cnt--) {
if (cnt)
udelay(100);
else
rval = QLA_FUNCTION_TIMEOUT;
}
/* Pause RISC. */
if (rval == QLA_SUCCESS && (IS_QLA2200(ha) || (IS_QLA2100(ha) &&
(rd_reg_word(®->mctr) & (BIT_1 | BIT_0)) != 0))) {
wrt_reg_word(®->hccr, HCCR_PAUSE_RISC);
for (cnt = 30000;
(rd_reg_word(®->hccr) & HCCR_RISC_PAUSE) == 0 &&
rval == QLA_SUCCESS; cnt--) {
if (cnt)
udelay(100);
else
rval = QLA_FUNCTION_TIMEOUT;
}
if (rval == QLA_SUCCESS) {
/* Set memory configuration and timing. */
if (IS_QLA2100(ha))
wrt_reg_word(®->mctr, 0xf1);
else
wrt_reg_word(®->mctr, 0xf2);
rd_reg_word(®->mctr); /* PCI Posting. */
/* Release RISC. */
wrt_reg_word(®->hccr, HCCR_RELEASE_RISC);
}
}
if (rval == QLA_SUCCESS) {
/* Get RISC SRAM. */
risc_address = 0x1000;
WRT_MAILBOX_REG(ha, reg, 0, MBC_READ_RAM_WORD);
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
}
for (cnt = 0; cnt < ARRAY_SIZE(fw->risc_ram) && rval == QLA_SUCCESS;
cnt++, risc_address++) {
WRT_MAILBOX_REG(ha, reg, 1, risc_address);
wrt_reg_word(®->hccr, HCCR_SET_HOST_INT);
for (timer = 6000000; timer != 0; timer--) {
/* Check for pending interrupts. */
if (rd_reg_word(®->istatus) & ISR_RISC_INT) {
if (rd_reg_word(®->semaphore) & BIT_0) {
set_bit(MBX_INTERRUPT,
&ha->mbx_cmd_flags);
mb0 = RD_MAILBOX_REG(ha, reg, 0);
mb2 = RD_MAILBOX_REG(ha, reg, 2);
wrt_reg_word(®->semaphore, 0);
wrt_reg_word(®->hccr,
HCCR_CLR_RISC_INT);
rd_reg_word(®->hccr);
break;
}
wrt_reg_word(®->hccr, HCCR_CLR_RISC_INT);
rd_reg_word(®->hccr);
}
udelay(5);
}
if (test_and_clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags)) {
rval = mb0 & MBS_MASK;
fw->risc_ram[cnt] = htons(mb2);
} else {
rval = QLA_FUNCTION_FAILED;
}
}
if (rval == QLA_SUCCESS)
qla2xxx_copy_queues(ha, &fw->queue_dump[0]);
qla2xxx_dump_post_process(base_vha, rval);
}
void
qla24xx_fw_dump(scsi_qla_host_t *vha)
{
int rval;
uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
__le32 __iomem *dmp_reg;
__be32 *iter_reg;
__le16 __iomem *mbx_reg;
struct qla24xx_fw_dump *fw;
void *nxt;
void *nxt_chain;
__be32 *last_chain = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
lockdep_assert_held(&ha->hardware_lock);
if (IS_P3P_TYPE(ha))
return;
ha->fw_dump_cap_flags = 0;
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd006,
"No buffer available for dump.\n");
return;
}
if (ha->fw_dumped) {
ql_log(ql_log_warn, vha, 0xd007,
"Firmware has been previously dumped (%p) "
"-- ignoring request.\n",
ha->fw_dump);
return;
}
QLA_FW_STOPPED(ha);
fw = &ha->fw_dump->isp.isp24;
qla2xxx_prep_dump(ha, ha->fw_dump);
fw->host_status = htonl(rd_reg_dword(®->host_status));
/*
* Pause RISC. No need to track timeout, as resetting the chip
* is the right approach incase of pause timeout
*/
qla24xx_pause_risc(reg, ha);
/* Host interface registers. */
dmp_reg = ®->flash_addr;
for (cnt = 0; cnt < ARRAY_SIZE(fw->host_reg); cnt++, dmp_reg++)
fw->host_reg[cnt] = htonl(rd_reg_dword(dmp_reg));
/* Disable interrupts. */
wrt_reg_dword(®->ictrl, 0);
rd_reg_dword(®->ictrl);
/* Shadow registers. */
wrt_reg_dword(®->iobase_addr, 0x0F70);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_select, 0xB0000000);
fw->shadow_reg[0] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0100000);
fw->shadow_reg[1] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0200000);
fw->shadow_reg[2] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0300000);
fw->shadow_reg[3] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0400000);
fw->shadow_reg[4] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0500000);
fw->shadow_reg[5] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0600000);
fw->shadow_reg[6] = htonl(rd_reg_dword(®->iobase_sdata));
/* Mailbox registers. */
mbx_reg = ®->mailbox0;
for (cnt = 0; cnt < ARRAY_SIZE(fw->mailbox_reg); cnt++, mbx_reg++)
fw->mailbox_reg[cnt] = htons(rd_reg_word(mbx_reg));
/* Transfer sequence registers. */
iter_reg = fw->xseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xBF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF60, 16, iter_reg);
qla24xx_read_window(reg, 0xBF70, 16, iter_reg);
qla24xx_read_window(reg, 0xBFE0, 16, fw->xseq_0_reg);
qla24xx_read_window(reg, 0xBFF0, 16, fw->xseq_1_reg);
/* Receive sequence registers. */
iter_reg = fw->rseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xFF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF60, 16, iter_reg);
qla24xx_read_window(reg, 0xFF70, 16, iter_reg);
qla24xx_read_window(reg, 0xFFD0, 16, fw->rseq_0_reg);
qla24xx_read_window(reg, 0xFFE0, 16, fw->rseq_1_reg);
qla24xx_read_window(reg, 0xFFF0, 16, fw->rseq_2_reg);
/* Command DMA registers. */
qla24xx_read_window(reg, 0x7100, 16, fw->cmd_dma_reg);
/* Queues. */
iter_reg = fw->req0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7200, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
iter_reg = fw->resp0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7300, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
iter_reg = fw->req1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7400, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
/* Transmit DMA registers. */
iter_reg = fw->xmt0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7600, 16, iter_reg);
qla24xx_read_window(reg, 0x7610, 16, iter_reg);
iter_reg = fw->xmt1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7620, 16, iter_reg);
qla24xx_read_window(reg, 0x7630, 16, iter_reg);
iter_reg = fw->xmt2_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7640, 16, iter_reg);
qla24xx_read_window(reg, 0x7650, 16, iter_reg);
iter_reg = fw->xmt3_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7660, 16, iter_reg);
qla24xx_read_window(reg, 0x7670, 16, iter_reg);
iter_reg = fw->xmt4_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7680, 16, iter_reg);
qla24xx_read_window(reg, 0x7690, 16, iter_reg);
qla24xx_read_window(reg, 0x76A0, 16, fw->xmt_data_dma_reg);
/* Receive DMA registers. */
iter_reg = fw->rcvt0_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7700, 16, iter_reg);
qla24xx_read_window(reg, 0x7710, 16, iter_reg);
iter_reg = fw->rcvt1_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7720, 16, iter_reg);
qla24xx_read_window(reg, 0x7730, 16, iter_reg);
/* RISC registers. */
iter_reg = fw->risc_gp_reg;
iter_reg = qla24xx_read_window(reg, 0x0F00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F60, 16, iter_reg);
qla24xx_read_window(reg, 0x0F70, 16, iter_reg);
/* Local memory controller registers. */
iter_reg = fw->lmc_reg;
iter_reg = qla24xx_read_window(reg, 0x3000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3050, 16, iter_reg);
qla24xx_read_window(reg, 0x3060, 16, iter_reg);
/* Fibre Protocol Module registers. */
iter_reg = fw->fpm_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x4000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4060, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4070, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4080, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4090, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40A0, 16, iter_reg);
qla24xx_read_window(reg, 0x40B0, 16, iter_reg);
/* Frame Buffer registers. */
iter_reg = fw->fb_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x6000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6100, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6130, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6150, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6170, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6190, 16, iter_reg);
qla24xx_read_window(reg, 0x61B0, 16, iter_reg);
rval = qla24xx_soft_reset(ha);
if (rval != QLA_SUCCESS)
goto qla24xx_fw_dump_failed_0;
rval = qla24xx_dump_memory(ha, fw->code_ram, sizeof(fw->code_ram),
&nxt);
if (rval != QLA_SUCCESS)
goto qla24xx_fw_dump_failed_0;
nxt = qla2xxx_copy_queues(ha, nxt);
qla24xx_copy_eft(ha, nxt);
nxt_chain = (void *)ha->fw_dump + ha->chain_offset;
nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT);
*last_chain |= htonl(DUMP_CHAIN_LAST);
}
/* Adjust valid length. */
ha->fw_dump_len = (nxt_chain - (void *)ha->fw_dump);
qla24xx_fw_dump_failed_0:
qla2xxx_dump_post_process(base_vha, rval);
}
void
qla25xx_fw_dump(scsi_qla_host_t *vha)
{
int rval;
uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
__le32 __iomem *dmp_reg;
__be32 *iter_reg;
__le16 __iomem *mbx_reg;
struct qla25xx_fw_dump *fw;
void *nxt, *nxt_chain;
__be32 *last_chain = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
lockdep_assert_held(&ha->hardware_lock);
ha->fw_dump_cap_flags = 0;
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd008,
"No buffer available for dump.\n");
return;
}
if (ha->fw_dumped) {
ql_log(ql_log_warn, vha, 0xd009,
"Firmware has been previously dumped (%p) "
"-- ignoring request.\n",
ha->fw_dump);
return;
}
QLA_FW_STOPPED(ha);
fw = &ha->fw_dump->isp.isp25;
qla2xxx_prep_dump(ha, ha->fw_dump);
ha->fw_dump->version = htonl(2);
fw->host_status = htonl(rd_reg_dword(®->host_status));
/*
* Pause RISC. No need to track timeout, as resetting the chip
* is the right approach incase of pause timeout
*/
qla24xx_pause_risc(reg, ha);
/* Host/Risc registers. */
iter_reg = fw->host_risc_reg;
iter_reg = qla24xx_read_window(reg, 0x7000, 16, iter_reg);
qla24xx_read_window(reg, 0x7010, 16, iter_reg);
/* PCIe registers. */
wrt_reg_dword(®->iobase_addr, 0x7C00);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_window, 0x01);
dmp_reg = ®->iobase_c4;
fw->pcie_regs[0] = htonl(rd_reg_dword(dmp_reg));
dmp_reg++;
fw->pcie_regs[1] = htonl(rd_reg_dword(dmp_reg));
dmp_reg++;
fw->pcie_regs[2] = htonl(rd_reg_dword(dmp_reg));
fw->pcie_regs[3] = htonl(rd_reg_dword(®->iobase_window));
wrt_reg_dword(®->iobase_window, 0x00);
rd_reg_dword(®->iobase_window);
/* Host interface registers. */
dmp_reg = ®->flash_addr;
for (cnt = 0; cnt < ARRAY_SIZE(fw->host_reg); cnt++, dmp_reg++)
fw->host_reg[cnt] = htonl(rd_reg_dword(dmp_reg));
/* Disable interrupts. */
wrt_reg_dword(®->ictrl, 0);
rd_reg_dword(®->ictrl);
/* Shadow registers. */
wrt_reg_dword(®->iobase_addr, 0x0F70);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_select, 0xB0000000);
fw->shadow_reg[0] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0100000);
fw->shadow_reg[1] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0200000);
fw->shadow_reg[2] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0300000);
fw->shadow_reg[3] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0400000);
fw->shadow_reg[4] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0500000);
fw->shadow_reg[5] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0600000);
fw->shadow_reg[6] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0700000);
fw->shadow_reg[7] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0800000);
fw->shadow_reg[8] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0900000);
fw->shadow_reg[9] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0A00000);
fw->shadow_reg[10] = htonl(rd_reg_dword(®->iobase_sdata));
/* RISC I/O register. */
wrt_reg_dword(®->iobase_addr, 0x0010);
fw->risc_io_reg = htonl(rd_reg_dword(®->iobase_window));
/* Mailbox registers. */
mbx_reg = ®->mailbox0;
for (cnt = 0; cnt < ARRAY_SIZE(fw->mailbox_reg); cnt++, mbx_reg++)
fw->mailbox_reg[cnt] = htons(rd_reg_word(mbx_reg));
/* Transfer sequence registers. */
iter_reg = fw->xseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xBF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF60, 16, iter_reg);
qla24xx_read_window(reg, 0xBF70, 16, iter_reg);
iter_reg = fw->xseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xBFC0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBFD0, 16, iter_reg);
qla24xx_read_window(reg, 0xBFE0, 16, iter_reg);
qla24xx_read_window(reg, 0xBFF0, 16, fw->xseq_1_reg);
/* Receive sequence registers. */
iter_reg = fw->rseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xFF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF60, 16, iter_reg);
qla24xx_read_window(reg, 0xFF70, 16, iter_reg);
iter_reg = fw->rseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xFFC0, 16, iter_reg);
qla24xx_read_window(reg, 0xFFD0, 16, iter_reg);
qla24xx_read_window(reg, 0xFFE0, 16, fw->rseq_1_reg);
qla24xx_read_window(reg, 0xFFF0, 16, fw->rseq_2_reg);
/* Auxiliary sequence registers. */
iter_reg = fw->aseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xB000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB060, 16, iter_reg);
qla24xx_read_window(reg, 0xB070, 16, iter_reg);
iter_reg = fw->aseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xB0C0, 16, iter_reg);
qla24xx_read_window(reg, 0xB0D0, 16, iter_reg);
qla24xx_read_window(reg, 0xB0E0, 16, fw->aseq_1_reg);
qla24xx_read_window(reg, 0xB0F0, 16, fw->aseq_2_reg);
/* Command DMA registers. */
qla24xx_read_window(reg, 0x7100, 16, fw->cmd_dma_reg);
/* Queues. */
iter_reg = fw->req0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7200, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
iter_reg = fw->resp0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7300, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
iter_reg = fw->req1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7400, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
/* Transmit DMA registers. */
iter_reg = fw->xmt0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7600, 16, iter_reg);
qla24xx_read_window(reg, 0x7610, 16, iter_reg);
iter_reg = fw->xmt1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7620, 16, iter_reg);
qla24xx_read_window(reg, 0x7630, 16, iter_reg);
iter_reg = fw->xmt2_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7640, 16, iter_reg);
qla24xx_read_window(reg, 0x7650, 16, iter_reg);
iter_reg = fw->xmt3_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7660, 16, iter_reg);
qla24xx_read_window(reg, 0x7670, 16, iter_reg);
iter_reg = fw->xmt4_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7680, 16, iter_reg);
qla24xx_read_window(reg, 0x7690, 16, iter_reg);
qla24xx_read_window(reg, 0x76A0, 16, fw->xmt_data_dma_reg);
/* Receive DMA registers. */
iter_reg = fw->rcvt0_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7700, 16, iter_reg);
qla24xx_read_window(reg, 0x7710, 16, iter_reg);
iter_reg = fw->rcvt1_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7720, 16, iter_reg);
qla24xx_read_window(reg, 0x7730, 16, iter_reg);
/* RISC registers. */
iter_reg = fw->risc_gp_reg;
iter_reg = qla24xx_read_window(reg, 0x0F00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F60, 16, iter_reg);
qla24xx_read_window(reg, 0x0F70, 16, iter_reg);
/* Local memory controller registers. */
iter_reg = fw->lmc_reg;
iter_reg = qla24xx_read_window(reg, 0x3000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3060, 16, iter_reg);
qla24xx_read_window(reg, 0x3070, 16, iter_reg);
/* Fibre Protocol Module registers. */
iter_reg = fw->fpm_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x4000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4060, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4070, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4080, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4090, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40A0, 16, iter_reg);
qla24xx_read_window(reg, 0x40B0, 16, iter_reg);
/* Frame Buffer registers. */
iter_reg = fw->fb_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x6000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6100, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6130, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6150, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6170, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6190, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x61B0, 16, iter_reg);
qla24xx_read_window(reg, 0x6F00, 16, iter_reg);
/* Multi queue registers */
nxt_chain = qla25xx_copy_mq(ha, (void *)ha->fw_dump + ha->chain_offset,
&last_chain);
rval = qla24xx_soft_reset(ha);
if (rval != QLA_SUCCESS)
goto qla25xx_fw_dump_failed_0;
rval = qla24xx_dump_memory(ha, fw->code_ram, sizeof(fw->code_ram),
&nxt);
if (rval != QLA_SUCCESS)
goto qla25xx_fw_dump_failed_0;
nxt = qla2xxx_copy_queues(ha, nxt);
qla24xx_copy_eft(ha, nxt);
/* Chain entries -- started with MQ. */
nxt_chain = qla25xx_copy_fce(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_exlogin(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT);
*last_chain |= htonl(DUMP_CHAIN_LAST);
}
/* Adjust valid length. */
ha->fw_dump_len = (nxt_chain - (void *)ha->fw_dump);
qla25xx_fw_dump_failed_0:
qla2xxx_dump_post_process(base_vha, rval);
}
void
qla81xx_fw_dump(scsi_qla_host_t *vha)
{
int rval;
uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
__le32 __iomem *dmp_reg;
__be32 *iter_reg;
__le16 __iomem *mbx_reg;
struct qla81xx_fw_dump *fw;
void *nxt, *nxt_chain;
__be32 *last_chain = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
lockdep_assert_held(&ha->hardware_lock);
ha->fw_dump_cap_flags = 0;
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd00a,
"No buffer available for dump.\n");
return;
}
if (ha->fw_dumped) {
ql_log(ql_log_warn, vha, 0xd00b,
"Firmware has been previously dumped (%p) "
"-- ignoring request.\n",
ha->fw_dump);
return;
}
fw = &ha->fw_dump->isp.isp81;
qla2xxx_prep_dump(ha, ha->fw_dump);
fw->host_status = htonl(rd_reg_dword(®->host_status));
/*
* Pause RISC. No need to track timeout, as resetting the chip
* is the right approach incase of pause timeout
*/
qla24xx_pause_risc(reg, ha);
/* Host/Risc registers. */
iter_reg = fw->host_risc_reg;
iter_reg = qla24xx_read_window(reg, 0x7000, 16, iter_reg);
qla24xx_read_window(reg, 0x7010, 16, iter_reg);
/* PCIe registers. */
wrt_reg_dword(®->iobase_addr, 0x7C00);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_window, 0x01);
dmp_reg = ®->iobase_c4;
fw->pcie_regs[0] = htonl(rd_reg_dword(dmp_reg));
dmp_reg++;
fw->pcie_regs[1] = htonl(rd_reg_dword(dmp_reg));
dmp_reg++;
fw->pcie_regs[2] = htonl(rd_reg_dword(dmp_reg));
fw->pcie_regs[3] = htonl(rd_reg_dword(®->iobase_window));
wrt_reg_dword(®->iobase_window, 0x00);
rd_reg_dword(®->iobase_window);
/* Host interface registers. */
dmp_reg = ®->flash_addr;
for (cnt = 0; cnt < ARRAY_SIZE(fw->host_reg); cnt++, dmp_reg++)
fw->host_reg[cnt] = htonl(rd_reg_dword(dmp_reg));
/* Disable interrupts. */
wrt_reg_dword(®->ictrl, 0);
rd_reg_dword(®->ictrl);
/* Shadow registers. */
wrt_reg_dword(®->iobase_addr, 0x0F70);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_select, 0xB0000000);
fw->shadow_reg[0] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0100000);
fw->shadow_reg[1] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0200000);
fw->shadow_reg[2] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0300000);
fw->shadow_reg[3] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0400000);
fw->shadow_reg[4] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0500000);
fw->shadow_reg[5] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0600000);
fw->shadow_reg[6] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0700000);
fw->shadow_reg[7] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0800000);
fw->shadow_reg[8] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0900000);
fw->shadow_reg[9] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0A00000);
fw->shadow_reg[10] = htonl(rd_reg_dword(®->iobase_sdata));
/* RISC I/O register. */
wrt_reg_dword(®->iobase_addr, 0x0010);
fw->risc_io_reg = htonl(rd_reg_dword(®->iobase_window));
/* Mailbox registers. */
mbx_reg = ®->mailbox0;
for (cnt = 0; cnt < ARRAY_SIZE(fw->mailbox_reg); cnt++, mbx_reg++)
fw->mailbox_reg[cnt] = htons(rd_reg_word(mbx_reg));
/* Transfer sequence registers. */
iter_reg = fw->xseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xBF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF60, 16, iter_reg);
qla24xx_read_window(reg, 0xBF70, 16, iter_reg);
iter_reg = fw->xseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xBFC0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBFD0, 16, iter_reg);
qla24xx_read_window(reg, 0xBFE0, 16, iter_reg);
qla24xx_read_window(reg, 0xBFF0, 16, fw->xseq_1_reg);
/* Receive sequence registers. */
iter_reg = fw->rseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xFF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF60, 16, iter_reg);
qla24xx_read_window(reg, 0xFF70, 16, iter_reg);
iter_reg = fw->rseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xFFC0, 16, iter_reg);
qla24xx_read_window(reg, 0xFFD0, 16, iter_reg);
qla24xx_read_window(reg, 0xFFE0, 16, fw->rseq_1_reg);
qla24xx_read_window(reg, 0xFFF0, 16, fw->rseq_2_reg);
/* Auxiliary sequence registers. */
iter_reg = fw->aseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xB000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB060, 16, iter_reg);
qla24xx_read_window(reg, 0xB070, 16, iter_reg);
iter_reg = fw->aseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xB0C0, 16, iter_reg);
qla24xx_read_window(reg, 0xB0D0, 16, iter_reg);
qla24xx_read_window(reg, 0xB0E0, 16, fw->aseq_1_reg);
qla24xx_read_window(reg, 0xB0F0, 16, fw->aseq_2_reg);
/* Command DMA registers. */
qla24xx_read_window(reg, 0x7100, 16, fw->cmd_dma_reg);
/* Queues. */
iter_reg = fw->req0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7200, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
iter_reg = fw->resp0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7300, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
iter_reg = fw->req1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7400, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
/* Transmit DMA registers. */
iter_reg = fw->xmt0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7600, 16, iter_reg);
qla24xx_read_window(reg, 0x7610, 16, iter_reg);
iter_reg = fw->xmt1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7620, 16, iter_reg);
qla24xx_read_window(reg, 0x7630, 16, iter_reg);
iter_reg = fw->xmt2_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7640, 16, iter_reg);
qla24xx_read_window(reg, 0x7650, 16, iter_reg);
iter_reg = fw->xmt3_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7660, 16, iter_reg);
qla24xx_read_window(reg, 0x7670, 16, iter_reg);
iter_reg = fw->xmt4_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7680, 16, iter_reg);
qla24xx_read_window(reg, 0x7690, 16, iter_reg);
qla24xx_read_window(reg, 0x76A0, 16, fw->xmt_data_dma_reg);
/* Receive DMA registers. */
iter_reg = fw->rcvt0_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7700, 16, iter_reg);
qla24xx_read_window(reg, 0x7710, 16, iter_reg);
iter_reg = fw->rcvt1_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7720, 16, iter_reg);
qla24xx_read_window(reg, 0x7730, 16, iter_reg);
/* RISC registers. */
iter_reg = fw->risc_gp_reg;
iter_reg = qla24xx_read_window(reg, 0x0F00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F60, 16, iter_reg);
qla24xx_read_window(reg, 0x0F70, 16, iter_reg);
/* Local memory controller registers. */
iter_reg = fw->lmc_reg;
iter_reg = qla24xx_read_window(reg, 0x3000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3060, 16, iter_reg);
qla24xx_read_window(reg, 0x3070, 16, iter_reg);
/* Fibre Protocol Module registers. */
iter_reg = fw->fpm_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x4000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4060, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4070, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4080, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4090, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40A0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40B0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40C0, 16, iter_reg);
qla24xx_read_window(reg, 0x40D0, 16, iter_reg);
/* Frame Buffer registers. */
iter_reg = fw->fb_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x6000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6100, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6130, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6150, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6170, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6190, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x61B0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x61C0, 16, iter_reg);
qla24xx_read_window(reg, 0x6F00, 16, iter_reg);
/* Multi queue registers */
nxt_chain = qla25xx_copy_mq(ha, (void *)ha->fw_dump + ha->chain_offset,
&last_chain);
rval = qla24xx_soft_reset(ha);
if (rval != QLA_SUCCESS)
goto qla81xx_fw_dump_failed_0;
rval = qla24xx_dump_memory(ha, fw->code_ram, sizeof(fw->code_ram),
&nxt);
if (rval != QLA_SUCCESS)
goto qla81xx_fw_dump_failed_0;
nxt = qla2xxx_copy_queues(ha, nxt);
qla24xx_copy_eft(ha, nxt);
/* Chain entries -- started with MQ. */
nxt_chain = qla25xx_copy_fce(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_exlogin(ha, nxt_chain, &last_chain);
nxt_chain = qla81xx_copy_exchoffld(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT);
*last_chain |= htonl(DUMP_CHAIN_LAST);
}
/* Adjust valid length. */
ha->fw_dump_len = (nxt_chain - (void *)ha->fw_dump);
qla81xx_fw_dump_failed_0:
qla2xxx_dump_post_process(base_vha, rval);
}
void
qla83xx_fw_dump(scsi_qla_host_t *vha)
{
int rval;
uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
__le32 __iomem *dmp_reg;
__be32 *iter_reg;
__le16 __iomem *mbx_reg;
struct qla83xx_fw_dump *fw;
void *nxt, *nxt_chain;
__be32 *last_chain = NULL;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
lockdep_assert_held(&ha->hardware_lock);
ha->fw_dump_cap_flags = 0;
if (!ha->fw_dump) {
ql_log(ql_log_warn, vha, 0xd00c,
"No buffer available for dump!!!\n");
return;
}
if (ha->fw_dumped) {
ql_log(ql_log_warn, vha, 0xd00d,
"Firmware has been previously dumped (%p) -- ignoring "
"request...\n", ha->fw_dump);
return;
}
QLA_FW_STOPPED(ha);
fw = &ha->fw_dump->isp.isp83;
qla2xxx_prep_dump(ha, ha->fw_dump);
fw->host_status = htonl(rd_reg_dword(®->host_status));
/*
* Pause RISC. No need to track timeout, as resetting the chip
* is the right approach incase of pause timeout
*/
qla24xx_pause_risc(reg, ha);
wrt_reg_dword(®->iobase_addr, 0x6000);
dmp_reg = ®->iobase_window;
rd_reg_dword(dmp_reg);
wrt_reg_dword(dmp_reg, 0);
dmp_reg = ®->unused_4_1[0];
rd_reg_dword(dmp_reg);
wrt_reg_dword(dmp_reg, 0);
wrt_reg_dword(®->iobase_addr, 0x6010);
dmp_reg = ®->unused_4_1[2];
rd_reg_dword(dmp_reg);
wrt_reg_dword(dmp_reg, 0);
/* select PCR and disable ecc checking and correction */
wrt_reg_dword(®->iobase_addr, 0x0F70);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_select, 0x60000000); /* write to F0h = PCR */
/* Host/Risc registers. */
iter_reg = fw->host_risc_reg;
iter_reg = qla24xx_read_window(reg, 0x7000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x7010, 16, iter_reg);
qla24xx_read_window(reg, 0x7040, 16, iter_reg);
/* PCIe registers. */
wrt_reg_dword(®->iobase_addr, 0x7C00);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_window, 0x01);
dmp_reg = ®->iobase_c4;
fw->pcie_regs[0] = htonl(rd_reg_dword(dmp_reg));
dmp_reg++;
fw->pcie_regs[1] = htonl(rd_reg_dword(dmp_reg));
dmp_reg++;
fw->pcie_regs[2] = htonl(rd_reg_dword(dmp_reg));
fw->pcie_regs[3] = htonl(rd_reg_dword(®->iobase_window));
wrt_reg_dword(®->iobase_window, 0x00);
rd_reg_dword(®->iobase_window);
/* Host interface registers. */
dmp_reg = ®->flash_addr;
for (cnt = 0; cnt < ARRAY_SIZE(fw->host_reg); cnt++, dmp_reg++)
fw->host_reg[cnt] = htonl(rd_reg_dword(dmp_reg));
/* Disable interrupts. */
wrt_reg_dword(®->ictrl, 0);
rd_reg_dword(®->ictrl);
/* Shadow registers. */
wrt_reg_dword(®->iobase_addr, 0x0F70);
rd_reg_dword(®->iobase_addr);
wrt_reg_dword(®->iobase_select, 0xB0000000);
fw->shadow_reg[0] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0100000);
fw->shadow_reg[1] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0200000);
fw->shadow_reg[2] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0300000);
fw->shadow_reg[3] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0400000);
fw->shadow_reg[4] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0500000);
fw->shadow_reg[5] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0600000);
fw->shadow_reg[6] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0700000);
fw->shadow_reg[7] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0800000);
fw->shadow_reg[8] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0900000);
fw->shadow_reg[9] = htonl(rd_reg_dword(®->iobase_sdata));
wrt_reg_dword(®->iobase_select, 0xB0A00000);
fw->shadow_reg[10] = htonl(rd_reg_dword(®->iobase_sdata));
/* RISC I/O register. */
wrt_reg_dword(®->iobase_addr, 0x0010);
fw->risc_io_reg = htonl(rd_reg_dword(®->iobase_window));
/* Mailbox registers. */
mbx_reg = ®->mailbox0;
for (cnt = 0; cnt < ARRAY_SIZE(fw->mailbox_reg); cnt++, mbx_reg++)
fw->mailbox_reg[cnt] = htons(rd_reg_word(mbx_reg));
/* Transfer sequence registers. */
iter_reg = fw->xseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xBE00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBE10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBE20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBE30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBE40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBE50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBE60, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBE70, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBF60, 16, iter_reg);
qla24xx_read_window(reg, 0xBF70, 16, iter_reg);
iter_reg = fw->xseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xBFC0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xBFD0, 16, iter_reg);
qla24xx_read_window(reg, 0xBFE0, 16, iter_reg);
qla24xx_read_window(reg, 0xBFF0, 16, fw->xseq_1_reg);
qla24xx_read_window(reg, 0xBEF0, 16, fw->xseq_2_reg);
/* Receive sequence registers. */
iter_reg = fw->rseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xFE00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFE10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFE20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFE30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFE40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFE50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFE60, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFE70, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xFF60, 16, iter_reg);
qla24xx_read_window(reg, 0xFF70, 16, iter_reg);
iter_reg = fw->rseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xFFC0, 16, iter_reg);
qla24xx_read_window(reg, 0xFFD0, 16, iter_reg);
qla24xx_read_window(reg, 0xFFE0, 16, fw->rseq_1_reg);
qla24xx_read_window(reg, 0xFFF0, 16, fw->rseq_2_reg);
qla24xx_read_window(reg, 0xFEF0, 16, fw->rseq_3_reg);
/* Auxiliary sequence registers. */
iter_reg = fw->aseq_gp_reg;
iter_reg = qla24xx_read_window(reg, 0xB000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB060, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB070, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB100, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB110, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB120, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB130, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB140, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB150, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0xB160, 16, iter_reg);
qla24xx_read_window(reg, 0xB170, 16, iter_reg);
iter_reg = fw->aseq_0_reg;
iter_reg = qla24xx_read_window(reg, 0xB0C0, 16, iter_reg);
qla24xx_read_window(reg, 0xB0D0, 16, iter_reg);
qla24xx_read_window(reg, 0xB0E0, 16, fw->aseq_1_reg);
qla24xx_read_window(reg, 0xB0F0, 16, fw->aseq_2_reg);
qla24xx_read_window(reg, 0xB1F0, 16, fw->aseq_3_reg);
/* Command DMA registers. */
iter_reg = fw->cmd_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7100, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x7120, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x7130, 16, iter_reg);
qla24xx_read_window(reg, 0x71F0, 16, iter_reg);
/* Queues. */
iter_reg = fw->req0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7200, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
iter_reg = fw->resp0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7300, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
iter_reg = fw->req1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7400, 8, iter_reg);
dmp_reg = ®->iobase_q;
for (cnt = 0; cnt < 7; cnt++, dmp_reg++)
*iter_reg++ = htonl(rd_reg_dword(dmp_reg));
/* Transmit DMA registers. */
iter_reg = fw->xmt0_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7600, 16, iter_reg);
qla24xx_read_window(reg, 0x7610, 16, iter_reg);
iter_reg = fw->xmt1_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7620, 16, iter_reg);
qla24xx_read_window(reg, 0x7630, 16, iter_reg);
iter_reg = fw->xmt2_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7640, 16, iter_reg);
qla24xx_read_window(reg, 0x7650, 16, iter_reg);
iter_reg = fw->xmt3_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7660, 16, iter_reg);
qla24xx_read_window(reg, 0x7670, 16, iter_reg);
iter_reg = fw->xmt4_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7680, 16, iter_reg);
qla24xx_read_window(reg, 0x7690, 16, iter_reg);
qla24xx_read_window(reg, 0x76A0, 16, fw->xmt_data_dma_reg);
/* Receive DMA registers. */
iter_reg = fw->rcvt0_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7700, 16, iter_reg);
qla24xx_read_window(reg, 0x7710, 16, iter_reg);
iter_reg = fw->rcvt1_data_dma_reg;
iter_reg = qla24xx_read_window(reg, 0x7720, 16, iter_reg);
qla24xx_read_window(reg, 0x7730, 16, iter_reg);
/* RISC registers. */
iter_reg = fw->risc_gp_reg;
iter_reg = qla24xx_read_window(reg, 0x0F00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x0F60, 16, iter_reg);
qla24xx_read_window(reg, 0x0F70, 16, iter_reg);
/* Local memory controller registers. */
iter_reg = fw->lmc_reg;
iter_reg = qla24xx_read_window(reg, 0x3000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x3060, 16, iter_reg);
qla24xx_read_window(reg, 0x3070, 16, iter_reg);
/* Fibre Protocol Module registers. */
iter_reg = fw->fpm_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x4000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4050, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4060, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4070, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4080, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x4090, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40A0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40B0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40C0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40D0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x40E0, 16, iter_reg);
qla24xx_read_window(reg, 0x40F0, 16, iter_reg);
/* RQ0 Array registers. */
iter_reg = fw->rq0_array_reg;
iter_reg = qla24xx_read_window(reg, 0x5C00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C60, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C70, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C80, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5C90, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5CA0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5CB0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5CC0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5CD0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5CE0, 16, iter_reg);
qla24xx_read_window(reg, 0x5CF0, 16, iter_reg);
/* RQ1 Array registers. */
iter_reg = fw->rq1_array_reg;
iter_reg = qla24xx_read_window(reg, 0x5D00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D60, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D70, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D80, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5D90, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5DA0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5DB0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5DC0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5DD0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5DE0, 16, iter_reg);
qla24xx_read_window(reg, 0x5DF0, 16, iter_reg);
/* RP0 Array registers. */
iter_reg = fw->rp0_array_reg;
iter_reg = qla24xx_read_window(reg, 0x5E00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E60, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E70, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E80, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5E90, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5EA0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5EB0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5EC0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5ED0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5EE0, 16, iter_reg);
qla24xx_read_window(reg, 0x5EF0, 16, iter_reg);
/* RP1 Array registers. */
iter_reg = fw->rp1_array_reg;
iter_reg = qla24xx_read_window(reg, 0x5F00, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F10, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F20, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F30, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F40, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F50, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F60, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F70, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F80, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5F90, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5FA0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5FB0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5FC0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5FD0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x5FE0, 16, iter_reg);
qla24xx_read_window(reg, 0x5FF0, 16, iter_reg);
iter_reg = fw->at0_array_reg;
iter_reg = qla24xx_read_window(reg, 0x7080, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x7090, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x70A0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x70B0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x70C0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x70D0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x70E0, 16, iter_reg);
qla24xx_read_window(reg, 0x70F0, 16, iter_reg);
/* I/O Queue Control registers. */
qla24xx_read_window(reg, 0x7800, 16, fw->queue_control_reg);
/* Frame Buffer registers. */
iter_reg = fw->fb_hdw_reg;
iter_reg = qla24xx_read_window(reg, 0x6000, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6010, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6020, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6030, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6040, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6060, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6070, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6100, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6130, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6150, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6170, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6190, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x61B0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x61C0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6530, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6540, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6550, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6560, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6570, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6580, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x6590, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x65A0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x65B0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x65C0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x65D0, 16, iter_reg);
iter_reg = qla24xx_read_window(reg, 0x65E0, 16, iter_reg);
qla24xx_read_window(reg, 0x6F00, 16, iter_reg);
/* Multi queue registers */
nxt_chain = qla25xx_copy_mq(ha, (void *)ha->fw_dump + ha->chain_offset,
&last_chain);
rval = qla24xx_soft_reset(ha);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xd00e,
"SOFT RESET FAILED, forcing continuation of dump!!!\n");
rval = QLA_SUCCESS;
ql_log(ql_log_warn, vha, 0xd00f, "try a bigger hammer!!!\n");
wrt_reg_dword(®->hccr, HCCRX_SET_RISC_RESET);
rd_reg_dword(®->hccr);
wrt_reg_dword(®->hccr, HCCRX_REL_RISC_PAUSE);
rd_reg_dword(®->hccr);
wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_RESET);
rd_reg_dword(®->hccr);
for (cnt = 30000; cnt && (rd_reg_word(®->mailbox0)); cnt--)
udelay(5);
if (!cnt) {
nxt = fw->code_ram;
nxt += sizeof(fw->code_ram);
nxt += (ha->fw_memory_size - 0x100000 + 1);
goto copy_queue;
} else {
set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
ql_log(ql_log_warn, vha, 0xd010,
"bigger hammer success?\n");
}
}
rval = qla24xx_dump_memory(ha, fw->code_ram, sizeof(fw->code_ram),
&nxt);
if (rval != QLA_SUCCESS)
goto qla83xx_fw_dump_failed_0;
copy_queue:
nxt = qla2xxx_copy_queues(ha, nxt);
qla24xx_copy_eft(ha, nxt);
/* Chain entries -- started with MQ. */
nxt_chain = qla25xx_copy_fce(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_mqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla2xxx_copy_atioqueues(ha, nxt_chain, &last_chain);
nxt_chain = qla25xx_copy_exlogin(ha, nxt_chain, &last_chain);
nxt_chain = qla81xx_copy_exchoffld(ha, nxt_chain, &last_chain);
if (last_chain) {
ha->fw_dump->version |= htonl(DUMP_CHAIN_VARIANT);
*last_chain |= htonl(DUMP_CHAIN_LAST);
}
/* Adjust valid length. */
ha->fw_dump_len = (nxt_chain - (void *)ha->fw_dump);
qla83xx_fw_dump_failed_0:
qla2xxx_dump_post_process(base_vha, rval);
}
/****************************************************************************/
/* Driver Debug Functions. */
/****************************************************************************/
/* Write the debug message prefix into @pbuf. */
static void ql_dbg_prefix(char *pbuf, int pbuf_size, struct pci_dev *pdev,
const scsi_qla_host_t *vha, uint msg_id)
{
if (vha) {
const struct pci_dev *pdev = vha->hw->pdev;
/* <module-name> [<dev-name>]-<msg-id>:<host>: */
snprintf(pbuf, pbuf_size, "%s [%s]-%04x:%lu: ", QL_MSGHDR,
dev_name(&(pdev->dev)), msg_id, vha->host_no);
} else if (pdev) {
snprintf(pbuf, pbuf_size, "%s [%s]-%04x: : ", QL_MSGHDR,
dev_name(&pdev->dev), msg_id);
} else {
/* <module-name> [<dev-name>]-<msg-id>: : */
snprintf(pbuf, pbuf_size, "%s [%s]-%04x: : ", QL_MSGHDR,
"0000:00:00.0", msg_id);
}
}
/*
* This function is for formatting and logging debug information.
* It is to be used when vha is available. It formats the message
* and logs it to the messages file.
* parameters:
* level: The level of the debug messages to be printed.
* If ql2xextended_error_logging value is correctly set,
* this message will appear in the messages file.
* vha: Pointer to the scsi_qla_host_t.
* id: This is a unique identifier for the level. It identifies the
* part of the code from where the message originated.
* msg: The message to be displayed.
*/
void
ql_dbg(uint level, scsi_qla_host_t *vha, uint id, const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char pbuf[64];
ql_ktrace(1, level, pbuf, NULL, vha, id, fmt);
if (!ql_mask_match(level))
return;
if (!pbuf[0]) /* set by ql_ktrace */
ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL, vha, id);
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
pr_warn("%s%pV", pbuf, &vaf);
va_end(va);
}
/*
* This function is for formatting and logging debug information.
* It is to be used when vha is not available and pci is available,
* i.e., before host allocation. It formats the message and logs it
* to the messages file.
* parameters:
* level: The level of the debug messages to be printed.
* If ql2xextended_error_logging value is correctly set,
* this message will appear in the messages file.
* pdev: Pointer to the struct pci_dev.
* id: This is a unique id for the level. It identifies the part
* of the code from where the message originated.
* msg: The message to be displayed.
*/
void
ql_dbg_pci(uint level, struct pci_dev *pdev, uint id, const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char pbuf[128];
if (pdev == NULL)
return;
ql_ktrace(1, level, pbuf, pdev, NULL, id, fmt);
if (!ql_mask_match(level))
return;
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
if (!pbuf[0]) /* set by ql_ktrace */
ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), pdev, NULL,
id + ql_dbg_offset);
pr_warn("%s%pV", pbuf, &vaf);
va_end(va);
}
/*
* This function is for formatting and logging log messages.
* It is to be used when vha is available. It formats the message
* and logs it to the messages file. All the messages will be logged
* irrespective of value of ql2xextended_error_logging.
* parameters:
* level: The level of the log messages to be printed in the
* messages file.
* vha: Pointer to the scsi_qla_host_t
* id: This is a unique id for the level. It identifies the
* part of the code from where the message originated.
* msg: The message to be displayed.
*/
void
ql_log(uint level, scsi_qla_host_t *vha, uint id, const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char pbuf[128];
if (level > ql_errlev)
return;
ql_ktrace(0, level, pbuf, NULL, vha, id, fmt);
if (!pbuf[0]) /* set by ql_ktrace */
ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL, vha, id);
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
switch (level) {
case ql_log_fatal: /* FATAL LOG */
pr_crit("%s%pV", pbuf, &vaf);
break;
case ql_log_warn:
pr_err("%s%pV", pbuf, &vaf);
break;
case ql_log_info:
pr_warn("%s%pV", pbuf, &vaf);
break;
default:
pr_info("%s%pV", pbuf, &vaf);
break;
}
va_end(va);
}
/*
* This function is for formatting and logging log messages.
* It is to be used when vha is not available and pci is available,
* i.e., before host allocation. It formats the message and logs
* it to the messages file. All the messages are logged irrespective
* of the value of ql2xextended_error_logging.
* parameters:
* level: The level of the log messages to be printed in the
* messages file.
* pdev: Pointer to the struct pci_dev.
* id: This is a unique id for the level. It identifies the
* part of the code from where the message originated.
* msg: The message to be displayed.
*/
void
ql_log_pci(uint level, struct pci_dev *pdev, uint id, const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char pbuf[128];
if (pdev == NULL)
return;
if (level > ql_errlev)
return;
ql_ktrace(0, level, pbuf, pdev, NULL, id, fmt);
if (!pbuf[0]) /* set by ql_ktrace */
ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), pdev, NULL, id);
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
switch (level) {
case ql_log_fatal: /* FATAL LOG */
pr_crit("%s%pV", pbuf, &vaf);
break;
case ql_log_warn:
pr_err("%s%pV", pbuf, &vaf);
break;
case ql_log_info:
pr_warn("%s%pV", pbuf, &vaf);
break;
default:
pr_info("%s%pV", pbuf, &vaf);
break;
}
va_end(va);
}
void
ql_dump_regs(uint level, scsi_qla_host_t *vha, uint id)
{
int i;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
__le16 __iomem *mbx_reg;
if (!ql_mask_match(level))
return;
if (IS_P3P_TYPE(ha))
mbx_reg = ®82->mailbox_in[0];
else if (IS_FWI2_CAPABLE(ha))
mbx_reg = ®24->mailbox0;
else
mbx_reg = MAILBOX_REG(ha, reg, 0);
ql_dbg(level, vha, id, "Mailbox registers:\n");
for (i = 0; i < 6; i++, mbx_reg++)
ql_dbg(level, vha, id,
"mbox[%d] %#04x\n", i, rd_reg_word(mbx_reg));
}
void
ql_dump_buffer(uint level, scsi_qla_host_t *vha, uint id, const void *buf,
uint size)
{
uint cnt;
if (!ql_mask_match(level))
return;
ql_dbg(level, vha, id,
"%-+5d 0 1 2 3 4 5 6 7 8 9 A B C D E F\n", size);
ql_dbg(level, vha, id,
"----- -----------------------------------------------\n");
for (cnt = 0; cnt < size; cnt += 16) {
ql_dbg(level, vha, id, "%04x: ", cnt);
print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1,
buf + cnt, min(16U, size - cnt), false);
}
}
/*
* This function is for formatting and logging log messages.
* It is to be used when vha is available. It formats the message
* and logs it to the messages file. All the messages will be logged
* irrespective of value of ql2xextended_error_logging.
* parameters:
* level: The level of the log messages to be printed in the
* messages file.
* vha: Pointer to the scsi_qla_host_t
* id: This is a unique id for the level. It identifies the
* part of the code from where the message originated.
* msg: The message to be displayed.
*/
void
ql_log_qp(uint32_t level, struct qla_qpair *qpair, int32_t id,
const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char pbuf[128];
if (level > ql_errlev)
return;
ql_ktrace(0, level, pbuf, NULL, qpair ? qpair->vha : NULL, id, fmt);
if (!pbuf[0]) /* set by ql_ktrace */
ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL,
qpair ? qpair->vha : NULL, id);
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
switch (level) {
case ql_log_fatal: /* FATAL LOG */
pr_crit("%s%pV", pbuf, &vaf);
break;
case ql_log_warn:
pr_err("%s%pV", pbuf, &vaf);
break;
case ql_log_info:
pr_warn("%s%pV", pbuf, &vaf);
break;
default:
pr_info("%s%pV", pbuf, &vaf);
break;
}
va_end(va);
}
/*
* This function is for formatting and logging debug information.
* It is to be used when vha is available. It formats the message
* and logs it to the messages file.
* parameters:
* level: The level of the debug messages to be printed.
* If ql2xextended_error_logging value is correctly set,
* this message will appear in the messages file.
* vha: Pointer to the scsi_qla_host_t.
* id: This is a unique identifier for the level. It identifies the
* part of the code from where the message originated.
* msg: The message to be displayed.
*/
void
ql_dbg_qp(uint32_t level, struct qla_qpair *qpair, int32_t id,
const char *fmt, ...)
{
va_list va;
struct va_format vaf;
char pbuf[128];
ql_ktrace(1, level, pbuf, NULL, qpair ? qpair->vha : NULL, id, fmt);
if (!ql_mask_match(level))
return;
va_start(va, fmt);
vaf.fmt = fmt;
vaf.va = &va;
if (!pbuf[0]) /* set by ql_ktrace */
ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL,
qpair ? qpair->vha : NULL, id + ql_dbg_offset);
pr_warn("%s%pV", pbuf, &vaf);
va_end(va);
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_dbg.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2017 QLogic Corporation
*/
#include "qla_nvme.h"
#include <linux/scatterlist.h>
#include <linux/delay.h>
#include <linux/nvme.h>
#include <linux/nvme-fc.h>
#include <linux/blk-mq-pci.h>
#include <linux/blk-mq.h>
static struct nvme_fc_port_template qla_nvme_fc_transport;
static int qla_nvme_ls_reject_iocb(struct scsi_qla_host *vha,
struct qla_qpair *qp,
struct qla_nvme_lsrjt_pt_arg *a,
bool is_xchg_terminate);
struct qla_nvme_unsol_ctx {
struct list_head elem;
struct scsi_qla_host *vha;
struct fc_port *fcport;
struct srb *sp;
struct nvmefc_ls_rsp lsrsp;
struct nvmefc_ls_rsp *fd_rsp;
struct work_struct lsrsp_work;
struct work_struct abort_work;
__le32 exchange_address;
__le16 nport_handle;
__le16 ox_id;
int comp_status;
spinlock_t cmd_lock;
};
int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport)
{
struct qla_nvme_rport *rport;
struct nvme_fc_port_info req;
int ret;
if (!IS_ENABLED(CONFIG_NVME_FC))
return 0;
if (!vha->flags.nvme_enabled) {
ql_log(ql_log_info, vha, 0x2100,
"%s: Not registering target since Host NVME is not enabled\n",
__func__);
return 0;
}
if (!vha->nvme_local_port && qla_nvme_register_hba(vha))
return 0;
if (!(fcport->nvme_prli_service_param &
(NVME_PRLI_SP_TARGET | NVME_PRLI_SP_DISCOVERY)) ||
(fcport->nvme_flag & NVME_FLAG_REGISTERED))
return 0;
fcport->nvme_flag &= ~NVME_FLAG_RESETTING;
memset(&req, 0, sizeof(struct nvme_fc_port_info));
req.port_name = wwn_to_u64(fcport->port_name);
req.node_name = wwn_to_u64(fcport->node_name);
req.port_role = 0;
req.dev_loss_tmo = fcport->dev_loss_tmo;
if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR)
req.port_role = FC_PORT_ROLE_NVME_INITIATOR;
if (fcport->nvme_prli_service_param & NVME_PRLI_SP_TARGET)
req.port_role |= FC_PORT_ROLE_NVME_TARGET;
if (fcport->nvme_prli_service_param & NVME_PRLI_SP_DISCOVERY)
req.port_role |= FC_PORT_ROLE_NVME_DISCOVERY;
req.port_id = fcport->d_id.b24;
ql_log(ql_log_info, vha, 0x2102,
"%s: traddr=nn-0x%016llx:pn-0x%016llx PortID:%06x\n",
__func__, req.node_name, req.port_name,
req.port_id);
ret = nvme_fc_register_remoteport(vha->nvme_local_port, &req,
&fcport->nvme_remote_port);
if (ret) {
ql_log(ql_log_warn, vha, 0x212e,
"Failed to register remote port. Transport returned %d\n",
ret);
return ret;
}
nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port,
fcport->dev_loss_tmo);
if (fcport->nvme_prli_service_param & NVME_PRLI_SP_SLER)
ql_log(ql_log_info, vha, 0x212a,
"PortID:%06x Supports SLER\n", req.port_id);
if (fcport->nvme_prli_service_param & NVME_PRLI_SP_PI_CTRL)
ql_log(ql_log_info, vha, 0x212b,
"PortID:%06x Supports PI control\n", req.port_id);
rport = fcport->nvme_remote_port->private;
rport->fcport = fcport;
fcport->nvme_flag |= NVME_FLAG_REGISTERED;
return 0;
}
/* Allocate a queue for NVMe traffic */
static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport,
unsigned int qidx, u16 qsize, void **handle)
{
struct scsi_qla_host *vha;
struct qla_hw_data *ha;
struct qla_qpair *qpair;
/* Map admin queue and 1st IO queue to index 0 */
if (qidx)
qidx--;
vha = (struct scsi_qla_host *)lport->private;
ha = vha->hw;
ql_log(ql_log_info, vha, 0x2104,
"%s: handle %p, idx =%d, qsize %d\n",
__func__, handle, qidx, qsize);
if (qidx > qla_nvme_fc_transport.max_hw_queues) {
ql_log(ql_log_warn, vha, 0x212f,
"%s: Illegal qidx=%d. Max=%d\n",
__func__, qidx, qla_nvme_fc_transport.max_hw_queues);
return -EINVAL;
}
/* Use base qpair if max_qpairs is 0 */
if (!ha->max_qpairs) {
qpair = ha->base_qpair;
} else {
if (ha->queue_pair_map[qidx]) {
*handle = ha->queue_pair_map[qidx];
ql_log(ql_log_info, vha, 0x2121,
"Returning existing qpair of %p for idx=%x\n",
*handle, qidx);
return 0;
}
qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
if (!qpair) {
ql_log(ql_log_warn, vha, 0x2122,
"Failed to allocate qpair\n");
return -EINVAL;
}
qla_adjust_iocb_limit(vha);
}
*handle = qpair;
return 0;
}
static void qla_nvme_release_fcp_cmd_kref(struct kref *kref)
{
struct srb *sp = container_of(kref, struct srb, cmd_kref);
struct nvme_private *priv = (struct nvme_private *)sp->priv;
struct nvmefc_fcp_req *fd;
struct srb_iocb *nvme;
unsigned long flags;
if (!priv)
goto out;
nvme = &sp->u.iocb_cmd;
fd = nvme->u.nvme.desc;
spin_lock_irqsave(&priv->cmd_lock, flags);
priv->sp = NULL;
sp->priv = NULL;
if (priv->comp_status == QLA_SUCCESS) {
fd->rcv_rsplen = le16_to_cpu(nvme->u.nvme.rsp_pyld_len);
fd->status = NVME_SC_SUCCESS;
} else {
fd->rcv_rsplen = 0;
fd->transferred_length = 0;
fd->status = NVME_SC_INTERNAL;
}
spin_unlock_irqrestore(&priv->cmd_lock, flags);
fd->done(fd);
out:
qla2xxx_rel_qpair_sp(sp->qpair, sp);
}
static void qla_nvme_release_ls_cmd_kref(struct kref *kref)
{
struct srb *sp = container_of(kref, struct srb, cmd_kref);
struct nvme_private *priv = (struct nvme_private *)sp->priv;
struct nvmefc_ls_req *fd;
unsigned long flags;
if (!priv)
goto out;
spin_lock_irqsave(&priv->cmd_lock, flags);
priv->sp = NULL;
sp->priv = NULL;
spin_unlock_irqrestore(&priv->cmd_lock, flags);
fd = priv->fd;
fd->done(fd, priv->comp_status);
out:
qla2x00_rel_sp(sp);
}
static void qla_nvme_ls_complete(struct work_struct *work)
{
struct nvme_private *priv =
container_of(work, struct nvme_private, ls_work);
kref_put(&priv->sp->cmd_kref, qla_nvme_release_ls_cmd_kref);
}
static void qla_nvme_sp_ls_done(srb_t *sp, int res)
{
struct nvme_private *priv = sp->priv;
if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0))
return;
if (res)
res = -EINVAL;
priv->comp_status = res;
INIT_WORK(&priv->ls_work, qla_nvme_ls_complete);
schedule_work(&priv->ls_work);
}
static void qla_nvme_release_lsrsp_cmd_kref(struct kref *kref)
{
struct srb *sp = container_of(kref, struct srb, cmd_kref);
struct qla_nvme_unsol_ctx *uctx = sp->priv;
struct nvmefc_ls_rsp *fd_rsp;
unsigned long flags;
if (!uctx) {
qla2x00_rel_sp(sp);
return;
}
spin_lock_irqsave(&uctx->cmd_lock, flags);
uctx->sp = NULL;
sp->priv = NULL;
spin_unlock_irqrestore(&uctx->cmd_lock, flags);
fd_rsp = uctx->fd_rsp;
list_del(&uctx->elem);
fd_rsp->done(fd_rsp);
kfree(uctx);
qla2x00_rel_sp(sp);
}
static void qla_nvme_lsrsp_complete(struct work_struct *work)
{
struct qla_nvme_unsol_ctx *uctx =
container_of(work, struct qla_nvme_unsol_ctx, lsrsp_work);
kref_put(&uctx->sp->cmd_kref, qla_nvme_release_lsrsp_cmd_kref);
}
static void qla_nvme_sp_lsrsp_done(srb_t *sp, int res)
{
struct qla_nvme_unsol_ctx *uctx = sp->priv;
if (WARN_ON_ONCE(kref_read(&sp->cmd_kref) == 0))
return;
if (res)
res = -EINVAL;
uctx->comp_status = res;
INIT_WORK(&uctx->lsrsp_work, qla_nvme_lsrsp_complete);
schedule_work(&uctx->lsrsp_work);
}
/* it assumed that QPair lock is held. */
static void qla_nvme_sp_done(srb_t *sp, int res)
{
struct nvme_private *priv = sp->priv;
priv->comp_status = res;
kref_put(&sp->cmd_kref, qla_nvme_release_fcp_cmd_kref);
return;
}
static void qla_nvme_abort_work(struct work_struct *work)
{
struct nvme_private *priv =
container_of(work, struct nvme_private, abort_work);
srb_t *sp = priv->sp;
fc_port_t *fcport = sp->fcport;
struct qla_hw_data *ha = fcport->vha->hw;
int rval, abts_done_called = 1;
bool io_wait_for_abort_done;
uint32_t handle;
ql_dbg(ql_dbg_io, fcport->vha, 0xffff,
"%s called for sp=%p, hndl=%x on fcport=%p desc=%p deleted=%d\n",
__func__, sp, sp->handle, fcport, sp->u.iocb_cmd.u.nvme.desc, fcport->deleted);
if (!ha->flags.fw_started || fcport->deleted == QLA_SESS_DELETED)
goto out;
if (ha->flags.host_shutting_down) {
ql_log(ql_log_info, sp->fcport->vha, 0xffff,
"%s Calling done on sp: %p, type: 0x%x\n",
__func__, sp, sp->type);
sp->done(sp, 0);
goto out;
}
/*
* sp may not be valid after abort_command if return code is either
* SUCCESS or ERR_FROM_FW codes, so cache the value here.
*/
io_wait_for_abort_done = ql2xabts_wait_nvme &&
QLA_ABTS_WAIT_ENABLED(sp);
handle = sp->handle;
rval = ha->isp_ops->abort_command(sp);
ql_dbg(ql_dbg_io, fcport->vha, 0x212b,
"%s: %s command for sp=%p, handle=%x on fcport=%p rval=%x\n",
__func__, (rval != QLA_SUCCESS) ? "Failed to abort" : "Aborted",
sp, handle, fcport, rval);
/*
* If async tmf is enabled, the abort callback is called only on
* return codes QLA_SUCCESS and QLA_ERR_FROM_FW.
*/
if (ql2xasynctmfenable &&
rval != QLA_SUCCESS && rval != QLA_ERR_FROM_FW)
abts_done_called = 0;
/*
* Returned before decreasing kref so that I/O requests
* are waited until ABTS complete. This kref is decreased
* at qla24xx_abort_sp_done function.
*/
if (abts_done_called && io_wait_for_abort_done)
return;
out:
/* kref_get was done before work was schedule. */
kref_put(&sp->cmd_kref, sp->put_fn);
}
static int qla_nvme_xmt_ls_rsp(struct nvme_fc_local_port *lport,
struct nvme_fc_remote_port *rport,
struct nvmefc_ls_rsp *fd_resp)
{
struct qla_nvme_unsol_ctx *uctx = container_of(fd_resp,
struct qla_nvme_unsol_ctx, lsrsp);
struct qla_nvme_rport *qla_rport = rport->private;
fc_port_t *fcport = qla_rport->fcport;
struct scsi_qla_host *vha = uctx->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_nvme_lsrjt_pt_arg a;
struct srb_iocb *nvme;
srb_t *sp;
int rval = QLA_FUNCTION_FAILED;
uint8_t cnt = 0;
if (!fcport || fcport->deleted)
goto out;
if (!ha->flags.fw_started)
goto out;
/* Alloc SRB structure */
sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
if (!sp)
goto out;
sp->type = SRB_NVME_LS;
sp->name = "nvme_ls";
sp->done = qla_nvme_sp_lsrsp_done;
sp->put_fn = qla_nvme_release_lsrsp_cmd_kref;
sp->priv = (void *)uctx;
sp->unsol_rsp = 1;
uctx->sp = sp;
spin_lock_init(&uctx->cmd_lock);
nvme = &sp->u.iocb_cmd;
uctx->fd_rsp = fd_resp;
nvme->u.nvme.desc = fd_resp;
nvme->u.nvme.dir = 0;
nvme->u.nvme.dl = 0;
nvme->u.nvme.timeout_sec = 0;
nvme->u.nvme.cmd_dma = fd_resp->rspdma;
nvme->u.nvme.cmd_len = cpu_to_le32(fd_resp->rsplen);
nvme->u.nvme.rsp_len = 0;
nvme->u.nvme.rsp_dma = 0;
nvme->u.nvme.exchange_address = uctx->exchange_address;
nvme->u.nvme.nport_handle = uctx->nport_handle;
nvme->u.nvme.ox_id = uctx->ox_id;
dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
fd_resp->rsplen, DMA_TO_DEVICE);
ql_dbg(ql_dbg_unsol, vha, 0x2122,
"Unsol lsreq portid=%06x %8phC exchange_address 0x%x ox_id 0x%x hdl 0x%x\n",
fcport->d_id.b24, fcport->port_name, uctx->exchange_address,
uctx->ox_id, uctx->nport_handle);
retry:
rval = qla2x00_start_sp(sp);
switch (rval) {
case QLA_SUCCESS:
break;
case EAGAIN:
msleep(PURLS_MSLEEP_INTERVAL);
cnt++;
if (cnt < PURLS_RETRY_COUNT)
goto retry;
fallthrough;
default:
ql_dbg(ql_log_warn, vha, 0x2123,
"Failed to xmit Unsol ls response = %d\n", rval);
rval = -EIO;
qla2x00_rel_sp(sp);
goto out;
}
return 0;
out:
memset((void *)&a, 0, sizeof(a));
a.vp_idx = vha->vp_idx;
a.nport_handle = uctx->nport_handle;
a.xchg_address = uctx->exchange_address;
qla_nvme_ls_reject_iocb(vha, ha->base_qpair, &a, true);
kfree(uctx);
return rval;
}
static void qla_nvme_ls_abort(struct nvme_fc_local_port *lport,
struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
{
struct nvme_private *priv = fd->private;
unsigned long flags;
spin_lock_irqsave(&priv->cmd_lock, flags);
if (!priv->sp) {
spin_unlock_irqrestore(&priv->cmd_lock, flags);
return;
}
if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
spin_unlock_irqrestore(&priv->cmd_lock, flags);
return;
}
spin_unlock_irqrestore(&priv->cmd_lock, flags);
INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
schedule_work(&priv->abort_work);
}
static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
struct nvme_fc_remote_port *rport, struct nvmefc_ls_req *fd)
{
struct qla_nvme_rport *qla_rport = rport->private;
fc_port_t *fcport = qla_rport->fcport;
struct srb_iocb *nvme;
struct nvme_private *priv = fd->private;
struct scsi_qla_host *vha;
int rval = QLA_FUNCTION_FAILED;
struct qla_hw_data *ha;
srb_t *sp;
if (!fcport || fcport->deleted)
return rval;
vha = fcport->vha;
ha = vha->hw;
if (!ha->flags.fw_started)
return rval;
/* Alloc SRB structure */
sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
if (!sp)
return rval;
sp->type = SRB_NVME_LS;
sp->name = "nvme_ls";
sp->done = qla_nvme_sp_ls_done;
sp->put_fn = qla_nvme_release_ls_cmd_kref;
sp->priv = priv;
priv->sp = sp;
kref_init(&sp->cmd_kref);
spin_lock_init(&priv->cmd_lock);
nvme = &sp->u.iocb_cmd;
priv->fd = fd;
nvme->u.nvme.desc = fd;
nvme->u.nvme.dir = 0;
nvme->u.nvme.dl = 0;
nvme->u.nvme.cmd_len = cpu_to_le32(fd->rqstlen);
nvme->u.nvme.rsp_len = cpu_to_le32(fd->rsplen);
nvme->u.nvme.rsp_dma = fd->rspdma;
nvme->u.nvme.timeout_sec = fd->timeout;
nvme->u.nvme.cmd_dma = fd->rqstdma;
dma_sync_single_for_device(&ha->pdev->dev, nvme->u.nvme.cmd_dma,
fd->rqstlen, DMA_TO_DEVICE);
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x700e,
"qla2x00_start_sp failed = %d\n", rval);
sp->priv = NULL;
priv->sp = NULL;
qla2x00_rel_sp(sp);
return rval;
}
return rval;
}
static void qla_nvme_fcp_abort(struct nvme_fc_local_port *lport,
struct nvme_fc_remote_port *rport, void *hw_queue_handle,
struct nvmefc_fcp_req *fd)
{
struct nvme_private *priv = fd->private;
unsigned long flags;
spin_lock_irqsave(&priv->cmd_lock, flags);
if (!priv->sp) {
spin_unlock_irqrestore(&priv->cmd_lock, flags);
return;
}
if (!kref_get_unless_zero(&priv->sp->cmd_kref)) {
spin_unlock_irqrestore(&priv->cmd_lock, flags);
return;
}
spin_unlock_irqrestore(&priv->cmd_lock, flags);
INIT_WORK(&priv->abort_work, qla_nvme_abort_work);
schedule_work(&priv->abort_work);
}
static inline int qla2x00_start_nvme_mq(srb_t *sp)
{
unsigned long flags;
uint32_t *clr_ptr;
uint32_t handle;
struct cmd_nvme *cmd_pkt;
uint16_t cnt, i;
uint16_t req_cnt;
uint16_t tot_dsds;
uint16_t avail_dsds;
struct dsd64 *cur_dsd;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct scsi_qla_host *vha = sp->fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_qpair *qpair = sp->qpair;
struct srb_iocb *nvme = &sp->u.iocb_cmd;
struct scatterlist *sgl, *sg;
struct nvmefc_fcp_req *fd = nvme->u.nvme.desc;
struct nvme_fc_cmd_iu *cmd = fd->cmdaddr;
uint32_t rval = QLA_SUCCESS;
/* Setup qpair pointers */
req = qpair->req;
rsp = qpair->rsp;
tot_dsds = fd->sg_cnt;
/* Acquire qpair specific lock */
spin_lock_irqsave(&qpair->qp_lock, flags);
handle = qla2xxx_get_next_handle(req);
if (handle == 0) {
rval = -EBUSY;
goto queuing_error;
}
req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH;
sp->iores.exch_cnt = 1;
sp->iores.iocb_cnt = req_cnt;
if (qla_get_fw_resources(sp->qpair, &sp->iores)) {
rval = -EBUSY;
goto queuing_error;
}
if (req->cnt < (req_cnt + 2)) {
if (IS_SHADOW_REG_CAPABLE(ha)) {
cnt = *req->out_ptr;
} else {
cnt = rd_reg_dword_relaxed(req->req_q_out);
if (qla2x00_check_reg16_for_disconnect(vha, cnt)) {
rval = -EBUSY;
goto queuing_error;
}
}
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length - (req->ring_index - cnt);
if (req->cnt < (req_cnt + 2)){
rval = -EBUSY;
goto queuing_error;
}
}
if (unlikely(!fd->sqid)) {
if (cmd->sqe.common.opcode == nvme_admin_async_event) {
nvme->u.nvme.aen_op = 1;
atomic_inc(&ha->nvme_active_aen_cnt);
}
}
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
req->cnt -= req_cnt;
cmd_pkt = (struct cmd_nvme *)req->ring_ptr;
cmd_pkt->handle = make_handle(req->id, handle);
/* Zero out remaining portion of packet. */
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->entry_status = 0;
/* Update entry type to indicate Command NVME IOCB */
cmd_pkt->entry_type = COMMAND_NVME;
/* No data transfer how do we check buffer len == 0?? */
if (fd->io_dir == NVMEFC_FCP_READ) {
cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
qpair->counters.input_bytes += fd->payload_length;
qpair->counters.input_requests++;
} else if (fd->io_dir == NVMEFC_FCP_WRITE) {
cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
if ((vha->flags.nvme_first_burst) &&
(sp->fcport->nvme_prli_service_param &
NVME_PRLI_SP_FIRST_BURST)) {
if ((fd->payload_length <=
sp->fcport->nvme_first_burst_size) ||
(sp->fcport->nvme_first_burst_size == 0))
cmd_pkt->control_flags |=
cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE);
}
qpair->counters.output_bytes += fd->payload_length;
qpair->counters.output_requests++;
} else if (fd->io_dir == 0) {
cmd_pkt->control_flags = 0;
}
if (sp->fcport->edif.enable && fd->io_dir != 0)
cmd_pkt->control_flags |= cpu_to_le16(CF_EN_EDIF);
/* Set BIT_13 of control flags for Async event */
if (vha->flags.nvme2_enabled &&
cmd->sqe.common.opcode == nvme_admin_async_event) {
cmd_pkt->control_flags |= cpu_to_le16(CF_ADMIN_ASYNC_EVENT);
}
/* Set NPORT-ID */
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
/* NVME RSP IU */
cmd_pkt->nvme_rsp_dsd_len = cpu_to_le16(fd->rsplen);
put_unaligned_le64(fd->rspdma, &cmd_pkt->nvme_rsp_dseg_address);
/* NVME CNMD IU */
cmd_pkt->nvme_cmnd_dseg_len = cpu_to_le16(fd->cmdlen);
cmd_pkt->nvme_cmnd_dseg_address = cpu_to_le64(fd->cmddma);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
cmd_pkt->byte_count = cpu_to_le32(fd->payload_length);
/* One DSD is available in the Command Type NVME IOCB */
avail_dsds = 1;
cur_dsd = &cmd_pkt->nvme_dsd;
sgl = fd->first_sgl;
/* Load data segments */
for_each_sg(sgl, sg, tot_dsds, i) {
cont_a64_entry_t *cont_pkt;
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
/*
* Five DSDs are available in the Continuation
* Type 1 IOCB.
*/
/* Adjust ring index */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else {
req->ring_ptr++;
}
cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
put_unaligned_le32(CONTINUE_A64_TYPE,
&cont_pkt->entry_type);
cur_dsd = cont_pkt->dsd;
avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
}
append_dsd64(&cur_dsd, sg);
avail_dsds--;
}
/* Set total entry count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else {
req->ring_ptr++;
}
/* ignore nvme async cmd due to long timeout */
if (!nvme->u.nvme.aen_op)
sp->qpair->cmd_cnt++;
/* Set chip new ring index. */
wrt_reg_dword(req->req_q_in, req->ring_index);
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
queuing_error:
if (rval)
qla_put_fw_resources(sp->qpair, &sp->iores);
spin_unlock_irqrestore(&qpair->qp_lock, flags);
return rval;
}
/* Post a command */
static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
struct nvme_fc_remote_port *rport, void *hw_queue_handle,
struct nvmefc_fcp_req *fd)
{
fc_port_t *fcport;
struct srb_iocb *nvme;
struct scsi_qla_host *vha;
struct qla_hw_data *ha;
int rval;
srb_t *sp;
struct qla_qpair *qpair = hw_queue_handle;
struct nvme_private *priv = fd->private;
struct qla_nvme_rport *qla_rport = rport->private;
if (!priv) {
/* nvme association has been torn down */
return -ENODEV;
}
fcport = qla_rport->fcport;
if (unlikely(!qpair || !fcport || fcport->deleted))
return -EBUSY;
if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
return -ENODEV;
vha = fcport->vha;
ha = vha->hw;
if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
return -EBUSY;
/*
* If we know the dev is going away while the transport is still sending
* IO's return busy back to stall the IO Q. This happens when the
* link goes away and fw hasn't notified us yet, but IO's are being
* returned. If the dev comes back quickly we won't exhaust the IO
* retry count at the core.
*/
if (fcport->nvme_flag & NVME_FLAG_RESETTING)
return -EBUSY;
qpair = qla_mapq_nvme_select_qpair(ha, qpair);
/* Alloc SRB structure */
sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
if (!sp)
return -EBUSY;
kref_init(&sp->cmd_kref);
spin_lock_init(&priv->cmd_lock);
sp->priv = priv;
priv->sp = sp;
sp->type = SRB_NVME_CMD;
sp->name = "nvme_cmd";
sp->done = qla_nvme_sp_done;
sp->put_fn = qla_nvme_release_fcp_cmd_kref;
sp->qpair = qpair;
sp->vha = vha;
sp->cmd_sp = sp;
nvme = &sp->u.iocb_cmd;
nvme->u.nvme.desc = fd;
rval = qla2x00_start_nvme_mq(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x212d,
"qla2x00_start_nvme_mq failed = %d\n", rval);
sp->priv = NULL;
priv->sp = NULL;
qla2xxx_rel_qpair_sp(sp->qpair, sp);
}
return rval;
}
static void qla_nvme_map_queues(struct nvme_fc_local_port *lport,
struct blk_mq_queue_map *map)
{
struct scsi_qla_host *vha = lport->private;
blk_mq_pci_map_queues(map, vha->hw->pdev, vha->irq_offset);
}
static void qla_nvme_localport_delete(struct nvme_fc_local_port *lport)
{
struct scsi_qla_host *vha = lport->private;
ql_log(ql_log_info, vha, 0x210f,
"localport delete of %p completed.\n", vha->nvme_local_port);
vha->nvme_local_port = NULL;
complete(&vha->nvme_del_done);
}
static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
{
fc_port_t *fcport;
struct qla_nvme_rport *qla_rport = rport->private;
fcport = qla_rport->fcport;
fcport->nvme_remote_port = NULL;
fcport->nvme_flag &= ~NVME_FLAG_REGISTERED;
fcport->nvme_flag &= ~NVME_FLAG_DELETING;
ql_log(ql_log_info, fcport->vha, 0x2110,
"remoteport_delete of %p %8phN completed.\n",
fcport, fcport->port_name);
complete(&fcport->nvme_del_done);
}
static struct nvme_fc_port_template qla_nvme_fc_transport = {
.localport_delete = qla_nvme_localport_delete,
.remoteport_delete = qla_nvme_remoteport_delete,
.create_queue = qla_nvme_alloc_queue,
.delete_queue = NULL,
.ls_req = qla_nvme_ls_req,
.ls_abort = qla_nvme_ls_abort,
.fcp_io = qla_nvme_post_cmd,
.fcp_abort = qla_nvme_fcp_abort,
.xmt_ls_rsp = qla_nvme_xmt_ls_rsp,
.map_queues = qla_nvme_map_queues,
.max_hw_queues = DEF_NVME_HW_QUEUES,
.max_sgl_segments = 1024,
.max_dif_sgl_segments = 64,
.dma_boundary = 0xFFFFFFFF,
.local_priv_sz = 8,
.remote_priv_sz = sizeof(struct qla_nvme_rport),
.lsrqst_priv_sz = sizeof(struct nvme_private),
.fcprqst_priv_sz = sizeof(struct nvme_private),
};
void qla_nvme_unregister_remote_port(struct fc_port *fcport)
{
int ret;
if (!IS_ENABLED(CONFIG_NVME_FC))
return;
ql_log(ql_log_warn, fcport->vha, 0x2112,
"%s: unregister remoteport on %p %8phN\n",
__func__, fcport, fcport->port_name);
if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags))
nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
init_completion(&fcport->nvme_del_done);
ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port);
if (ret)
ql_log(ql_log_info, fcport->vha, 0x2114,
"%s: Failed to unregister nvme_remote_port (%d)\n",
__func__, ret);
wait_for_completion(&fcport->nvme_del_done);
}
void qla_nvme_delete(struct scsi_qla_host *vha)
{
int nv_ret;
if (!IS_ENABLED(CONFIG_NVME_FC))
return;
if (vha->nvme_local_port) {
init_completion(&vha->nvme_del_done);
ql_log(ql_log_info, vha, 0x2116,
"unregister localport=%p\n",
vha->nvme_local_port);
nv_ret = nvme_fc_unregister_localport(vha->nvme_local_port);
if (nv_ret)
ql_log(ql_log_info, vha, 0x2115,
"Unregister of localport failed\n");
else
wait_for_completion(&vha->nvme_del_done);
}
}
int qla_nvme_register_hba(struct scsi_qla_host *vha)
{
struct nvme_fc_port_template *tmpl;
struct qla_hw_data *ha;
struct nvme_fc_port_info pinfo;
int ret = -EINVAL;
if (!IS_ENABLED(CONFIG_NVME_FC))
return ret;
ha = vha->hw;
tmpl = &qla_nvme_fc_transport;
if (ql2xnvme_queues < MIN_NVME_HW_QUEUES) {
ql_log(ql_log_warn, vha, 0xfffd,
"ql2xnvme_queues=%d is lower than minimum queues: %d. Resetting ql2xnvme_queues to:%d\n",
ql2xnvme_queues, MIN_NVME_HW_QUEUES, DEF_NVME_HW_QUEUES);
ql2xnvme_queues = DEF_NVME_HW_QUEUES;
} else if (ql2xnvme_queues > (ha->max_qpairs - 1)) {
ql_log(ql_log_warn, vha, 0xfffd,
"ql2xnvme_queues=%d is greater than available IRQs: %d. Resetting ql2xnvme_queues to: %d\n",
ql2xnvme_queues, (ha->max_qpairs - 1),
(ha->max_qpairs - 1));
ql2xnvme_queues = ((ha->max_qpairs - 1));
}
qla_nvme_fc_transport.max_hw_queues =
min((uint8_t)(ql2xnvme_queues),
(uint8_t)((ha->max_qpairs - 1) ? (ha->max_qpairs - 1) : 1));
ql_log(ql_log_info, vha, 0xfffb,
"Number of NVME queues used for this port: %d\n",
qla_nvme_fc_transport.max_hw_queues);
pinfo.node_name = wwn_to_u64(vha->node_name);
pinfo.port_name = wwn_to_u64(vha->port_name);
pinfo.port_role = FC_PORT_ROLE_NVME_INITIATOR;
pinfo.port_id = vha->d_id.b24;
mutex_lock(&ha->vport_lock);
/*
* Check again for nvme_local_port to see if any other thread raced
* with this one and finished registration.
*/
if (!vha->nvme_local_port) {
ql_log(ql_log_info, vha, 0xffff,
"register_localport: host-traddr=nn-0x%llx:pn-0x%llx on portID:%x\n",
pinfo.node_name, pinfo.port_name, pinfo.port_id);
qla_nvme_fc_transport.dma_boundary = vha->host->dma_boundary;
ret = nvme_fc_register_localport(&pinfo, tmpl,
get_device(&ha->pdev->dev),
&vha->nvme_local_port);
mutex_unlock(&ha->vport_lock);
} else {
mutex_unlock(&ha->vport_lock);
return 0;
}
if (ret) {
ql_log(ql_log_warn, vha, 0xffff,
"register_localport failed: ret=%x\n", ret);
} else {
vha->nvme_local_port->private = vha;
}
return ret;
}
void qla_nvme_abort_set_option(struct abort_entry_24xx *abt, srb_t *orig_sp)
{
struct qla_hw_data *ha;
if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
return;
ha = orig_sp->fcport->vha->hw;
WARN_ON_ONCE(abt->options & cpu_to_le16(BIT_0));
/* Use Driver Specified Retry Count */
abt->options |= cpu_to_le16(AOF_ABTS_RTY_CNT);
abt->drv.abts_rty_cnt = cpu_to_le16(2);
/* Use specified response timeout */
abt->options |= cpu_to_le16(AOF_RSP_TIMEOUT);
/* set it to 2 * r_a_tov in secs */
abt->drv.rsp_timeout = cpu_to_le16(2 * (ha->r_a_tov / 10));
}
void qla_nvme_abort_process_comp_status(struct abort_entry_24xx *abt, srb_t *orig_sp)
{
u16 comp_status;
struct scsi_qla_host *vha;
if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
return;
vha = orig_sp->fcport->vha;
comp_status = le16_to_cpu(abt->comp_status);
switch (comp_status) {
case CS_RESET: /* reset event aborted */
case CS_ABORTED: /* IOCB was cleaned */
/* N_Port handle is not currently logged in */
case CS_TIMEOUT:
/* N_Port handle was logged out while waiting for ABTS to complete */
case CS_PORT_UNAVAILABLE:
/* Firmware found that the port name changed */
case CS_PORT_LOGGED_OUT:
/* BA_RJT was received for the ABTS */
case CS_PORT_CONFIG_CHG:
ql_dbg(ql_dbg_async, vha, 0xf09d,
"Abort I/O IOCB completed with error, comp_status=%x\n",
comp_status);
break;
/* BA_RJT was received for the ABTS */
case CS_REJECT_RECEIVED:
ql_dbg(ql_dbg_async, vha, 0xf09e,
"BA_RJT was received for the ABTS rjt_vendorUnique = %u",
abt->fw.ba_rjt_vendorUnique);
ql_dbg(ql_dbg_async + ql_dbg_mbx, vha, 0xf09e,
"ba_rjt_reasonCodeExpl = %u, ba_rjt_reasonCode = %u\n",
abt->fw.ba_rjt_reasonCodeExpl, abt->fw.ba_rjt_reasonCode);
break;
case CS_COMPLETE:
ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0xf09f,
"IOCB request is completed successfully comp_status=%x\n",
comp_status);
break;
case CS_IOCB_ERROR:
ql_dbg(ql_dbg_async, vha, 0xf0a0,
"IOCB request is failed, comp_status=%x\n", comp_status);
break;
default:
ql_dbg(ql_dbg_async, vha, 0xf0a1,
"Invalid Abort IO IOCB Completion Status %x\n",
comp_status);
break;
}
}
inline void qla_wait_nvme_release_cmd_kref(srb_t *orig_sp)
{
if (!(ql2xabts_wait_nvme && QLA_ABTS_WAIT_ENABLED(orig_sp)))
return;
kref_put(&orig_sp->cmd_kref, orig_sp->put_fn);
}
static void qla_nvme_fc_format_rjt(void *buf, u8 ls_cmd, u8 reason,
u8 explanation, u8 vendor)
{
struct fcnvme_ls_rjt *rjt = buf;
rjt->w0.ls_cmd = FCNVME_LSDESC_RQST;
rjt->desc_list_len = fcnvme_lsdesc_len(sizeof(struct fcnvme_ls_rjt));
rjt->rqst.desc_tag = cpu_to_be32(FCNVME_LSDESC_RQST);
rjt->rqst.desc_len =
fcnvme_lsdesc_len(sizeof(struct fcnvme_lsdesc_rqst));
rjt->rqst.w0.ls_cmd = ls_cmd;
rjt->rjt.desc_tag = cpu_to_be32(FCNVME_LSDESC_RJT);
rjt->rjt.desc_len = fcnvme_lsdesc_len(sizeof(struct fcnvme_lsdesc_rjt));
rjt->rjt.reason_code = reason;
rjt->rjt.reason_explanation = explanation;
rjt->rjt.vendor = vendor;
}
static void qla_nvme_lsrjt_pt_iocb(struct scsi_qla_host *vha,
struct pt_ls4_request *lsrjt_iocb,
struct qla_nvme_lsrjt_pt_arg *a)
{
lsrjt_iocb->entry_type = PT_LS4_REQUEST;
lsrjt_iocb->entry_count = 1;
lsrjt_iocb->sys_define = 0;
lsrjt_iocb->entry_status = 0;
lsrjt_iocb->handle = QLA_SKIP_HANDLE;
lsrjt_iocb->nport_handle = a->nport_handle;
lsrjt_iocb->exchange_address = a->xchg_address;
lsrjt_iocb->vp_index = a->vp_idx;
lsrjt_iocb->control_flags = cpu_to_le16(a->control_flags);
put_unaligned_le64(a->tx_addr, &lsrjt_iocb->dsd[0].address);
lsrjt_iocb->dsd[0].length = cpu_to_le32(a->tx_byte_count);
lsrjt_iocb->tx_dseg_count = cpu_to_le16(1);
lsrjt_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count);
put_unaligned_le64(a->rx_addr, &lsrjt_iocb->dsd[1].address);
lsrjt_iocb->dsd[1].length = 0;
lsrjt_iocb->rx_dseg_count = 0;
lsrjt_iocb->rx_byte_count = 0;
}
static int
qla_nvme_ls_reject_iocb(struct scsi_qla_host *vha, struct qla_qpair *qp,
struct qla_nvme_lsrjt_pt_arg *a, bool is_xchg_terminate)
{
struct pt_ls4_request *lsrjt_iocb;
lsrjt_iocb = __qla2x00_alloc_iocbs(qp, NULL);
if (!lsrjt_iocb) {
ql_log(ql_log_warn, vha, 0x210e,
"qla2x00_alloc_iocbs failed.\n");
return QLA_FUNCTION_FAILED;
}
if (!is_xchg_terminate) {
qla_nvme_fc_format_rjt((void *)vha->hw->lsrjt.c, a->opcode,
a->reason, a->explanation, 0);
a->tx_byte_count = sizeof(struct fcnvme_ls_rjt);
a->tx_addr = vha->hw->lsrjt.cdma;
a->control_flags = CF_LS4_RESPONDER << CF_LS4_SHIFT;
ql_dbg(ql_dbg_unsol, vha, 0x211f,
"Sending nvme fc ls reject ox_id %04x op %04x\n",
a->ox_id, a->opcode);
ql_dump_buffer(ql_dbg_unsol + ql_dbg_verbose, vha, 0x210f,
vha->hw->lsrjt.c, sizeof(*vha->hw->lsrjt.c));
} else {
a->tx_byte_count = 0;
a->control_flags = CF_LS4_RESPONDER_TERM << CF_LS4_SHIFT;
ql_dbg(ql_dbg_unsol, vha, 0x2110,
"Terminate nvme ls xchg 0x%x\n", a->xchg_address);
}
qla_nvme_lsrjt_pt_iocb(vha, lsrjt_iocb, a);
/* flush iocb to mem before notifying hw doorbell */
wmb();
qla2x00_start_iocbs(vha, qp->req);
return 0;
}
/*
* qla2xxx_process_purls_pkt() - Pass-up Unsolicited
* Received FC-NVMe Link Service pkt to nvme_fc_rcv_ls_req().
* LLDD need to provide memory for response buffer, which
* will be used to reference the exchange corresponding
* to the LS when issuing an ls response. LLDD will have to free
* response buffer in lport->ops->xmt_ls_rsp().
*
* @vha: SCSI qla host
* @item: ptr to purex_item
*/
static void
qla2xxx_process_purls_pkt(struct scsi_qla_host *vha, struct purex_item *item)
{
struct qla_nvme_unsol_ctx *uctx = item->purls_context;
struct qla_nvme_lsrjt_pt_arg a;
int ret = 1;
#if (IS_ENABLED(CONFIG_NVME_FC))
ret = nvme_fc_rcv_ls_req(uctx->fcport->nvme_remote_port, &uctx->lsrsp,
&item->iocb, item->size);
#endif
if (ret) {
ql_dbg(ql_dbg_unsol, vha, 0x2125, "NVMe transport ls_req failed\n");
memset((void *)&a, 0, sizeof(a));
a.vp_idx = vha->vp_idx;
a.nport_handle = uctx->nport_handle;
a.xchg_address = uctx->exchange_address;
qla_nvme_ls_reject_iocb(vha, vha->hw->base_qpair, &a, true);
list_del(&uctx->elem);
kfree(uctx);
}
}
static scsi_qla_host_t *
qla2xxx_get_vha_from_vp_idx(struct qla_hw_data *ha, uint16_t vp_index)
{
scsi_qla_host_t *base_vha, *vha, *tvp;
unsigned long flags;
base_vha = pci_get_drvdata(ha->pdev);
if (!vp_index && !ha->num_vhosts)
return base_vha;
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry_safe(vha, tvp, &ha->vp_list, list) {
if (vha->vp_idx == vp_index) {
spin_unlock_irqrestore(&ha->vport_slock, flags);
return vha;
}
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
return NULL;
}
void qla2xxx_process_purls_iocb(void **pkt, struct rsp_que **rsp)
{
struct nvme_fc_remote_port *rport;
struct qla_nvme_rport *qla_rport;
struct qla_nvme_lsrjt_pt_arg a;
struct pt_ls4_rx_unsol *p = *pkt;
struct qla_nvme_unsol_ctx *uctx;
struct rsp_que *rsp_q = *rsp;
struct qla_hw_data *ha;
scsi_qla_host_t *vha;
fc_port_t *fcport = NULL;
struct purex_item *item;
port_id_t d_id = {0};
port_id_t id = {0};
u8 *opcode;
bool xmt_reject = false;
ha = rsp_q->hw;
vha = qla2xxx_get_vha_from_vp_idx(ha, p->vp_index);
if (!vha) {
ql_log(ql_log_warn, NULL, 0x2110, "Invalid vp index %d\n", p->vp_index);
WARN_ON_ONCE(1);
return;
}
memset((void *)&a, 0, sizeof(a));
opcode = (u8 *)&p->payload[0];
a.opcode = opcode[3];
a.vp_idx = p->vp_index;
a.nport_handle = p->nport_handle;
a.ox_id = p->ox_id;
a.xchg_address = p->exchange_address;
id.b.domain = p->s_id.domain;
id.b.area = p->s_id.area;
id.b.al_pa = p->s_id.al_pa;
d_id.b.domain = p->d_id[2];
d_id.b.area = p->d_id[1];
d_id.b.al_pa = p->d_id[0];
fcport = qla2x00_find_fcport_by_nportid(vha, &id, 0);
if (!fcport) {
ql_dbg(ql_dbg_unsol, vha, 0x211e,
"Failed to find sid=%06x did=%06x\n",
id.b24, d_id.b24);
a.reason = FCNVME_RJT_RC_INV_ASSOC;
a.explanation = FCNVME_RJT_EXP_NONE;
xmt_reject = true;
goto out;
}
rport = fcport->nvme_remote_port;
qla_rport = rport->private;
item = qla27xx_copy_multiple_pkt(vha, pkt, rsp, true, false);
if (!item) {
a.reason = FCNVME_RJT_RC_LOGIC;
a.explanation = FCNVME_RJT_EXP_NONE;
xmt_reject = true;
goto out;
}
uctx = kzalloc(sizeof(*uctx), GFP_ATOMIC);
if (!uctx) {
ql_log(ql_log_info, vha, 0x2126, "Failed allocate memory\n");
a.reason = FCNVME_RJT_RC_LOGIC;
a.explanation = FCNVME_RJT_EXP_NONE;
xmt_reject = true;
kfree(item);
goto out;
}
uctx->vha = vha;
uctx->fcport = fcport;
uctx->exchange_address = p->exchange_address;
uctx->nport_handle = p->nport_handle;
uctx->ox_id = p->ox_id;
qla_rport->uctx = uctx;
INIT_LIST_HEAD(&uctx->elem);
list_add_tail(&uctx->elem, &fcport->unsol_ctx_head);
item->purls_context = (void *)uctx;
ql_dbg(ql_dbg_unsol, vha, 0x2121,
"PURLS OP[%01x] size %d xchg addr 0x%x portid %06x\n",
item->iocb.iocb[3], item->size, uctx->exchange_address,
fcport->d_id.b24);
/* +48 0 1 2 3 4 5 6 7 8 9 A B C D E F
* ----- -----------------------------------------------
* 0000: 00 00 00 05 28 00 00 00 07 00 00 00 08 00 00 00
* 0010: ab ec 0f cc 00 00 8d 7d 05 00 00 00 10 00 00 00
* 0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*/
ql_dump_buffer(ql_dbg_unsol + ql_dbg_verbose, vha, 0x2120,
&item->iocb, item->size);
qla24xx_queue_purex_item(vha, item, qla2xxx_process_purls_pkt);
out:
if (xmt_reject) {
qla_nvme_ls_reject_iocb(vha, (*rsp)->qpair, &a, false);
__qla_consume_iocb(vha, pkt, rsp);
}
}
|
linux-master
|
drivers/scsi/qla2xxx/qla_nvme.c
|
/* bnx2i_hwi.c: QLogic NetXtreme II iSCSI driver.
*
* Copyright (c) 2006 - 2013 Broadcom Corporation
* Copyright (c) 2007, 2008 Red Hat, Inc. All rights reserved.
* Copyright (c) 2007, 2008 Mike Christie
* Copyright (c) 2014, QLogic Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Anil Veerabhadrappa ([email protected])
* Previously Maintained by: Eddie Wai ([email protected])
* Maintained by: [email protected]
*/
#include <linux/gfp.h>
#include <scsi/scsi_tcq.h>
#include <scsi/libiscsi.h>
#include "bnx2i.h"
DECLARE_PER_CPU(struct bnx2i_percpu_s, bnx2i_percpu);
/**
* bnx2i_get_cid_num - get cid from ep
* @ep: endpoint pointer
*
* Only applicable to 57710 family of devices
*/
static u32 bnx2i_get_cid_num(struct bnx2i_endpoint *ep)
{
u32 cid;
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type))
cid = ep->ep_cid;
else
cid = GET_CID_NUM(ep->ep_cid);
return cid;
}
/**
* bnx2i_adjust_qp_size - Adjust SQ/RQ/CQ size for 57710 device type
* @hba: Adapter for which adjustments is to be made
*
* Only applicable to 57710 family of devices
*/
static void bnx2i_adjust_qp_size(struct bnx2i_hba *hba)
{
u32 num_elements_per_pg;
if (test_bit(BNX2I_NX2_DEV_5706, &hba->cnic_dev_type) ||
test_bit(BNX2I_NX2_DEV_5708, &hba->cnic_dev_type) ||
test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) {
if (!is_power_of_2(hba->max_sqes))
hba->max_sqes = rounddown_pow_of_two(hba->max_sqes);
if (!is_power_of_2(hba->max_rqes))
hba->max_rqes = rounddown_pow_of_two(hba->max_rqes);
}
/* Adjust each queue size if the user selection does not
* yield integral num of page buffers
*/
/* adjust SQ */
num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_SQ_WQE_SIZE;
if (hba->max_sqes < num_elements_per_pg)
hba->max_sqes = num_elements_per_pg;
else if (hba->max_sqes % num_elements_per_pg)
hba->max_sqes = (hba->max_sqes + num_elements_per_pg - 1) &
~(num_elements_per_pg - 1);
/* adjust CQ */
num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_CQE_SIZE;
if (hba->max_cqes < num_elements_per_pg)
hba->max_cqes = num_elements_per_pg;
else if (hba->max_cqes % num_elements_per_pg)
hba->max_cqes = (hba->max_cqes + num_elements_per_pg - 1) &
~(num_elements_per_pg - 1);
/* adjust RQ */
num_elements_per_pg = CNIC_PAGE_SIZE / BNX2I_RQ_WQE_SIZE;
if (hba->max_rqes < num_elements_per_pg)
hba->max_rqes = num_elements_per_pg;
else if (hba->max_rqes % num_elements_per_pg)
hba->max_rqes = (hba->max_rqes + num_elements_per_pg - 1) &
~(num_elements_per_pg - 1);
}
/**
* bnx2i_get_link_state - get network interface link state
* @hba: adapter instance pointer
*
* updates adapter structure flag based on netdev state
*/
static void bnx2i_get_link_state(struct bnx2i_hba *hba)
{
if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state))
set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
else
clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
}
/**
* bnx2i_iscsi_license_error - displays iscsi license related error message
* @hba: adapter instance pointer
* @error_code: error classification
*
* Puts out an error log when driver is unable to offload iscsi connection
* due to license restrictions
*/
static void bnx2i_iscsi_license_error(struct bnx2i_hba *hba, u32 error_code)
{
if (error_code == ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED)
/* iSCSI offload not supported on this device */
printk(KERN_ERR "bnx2i: iSCSI not supported, dev=%s\n",
hba->netdev->name);
if (error_code == ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED)
/* iSCSI offload not supported on this LOM device */
printk(KERN_ERR "bnx2i: LOM is not enable to "
"offload iSCSI connections, dev=%s\n",
hba->netdev->name);
set_bit(ADAPTER_STATE_INIT_FAILED, &hba->adapter_state);
}
/**
* bnx2i_arm_cq_event_coalescing - arms CQ to enable EQ notification
* @ep: endpoint (transport identifier) structure
* @action: action, ARM or DISARM. For now only ARM_CQE is used
*
* Arm'ing CQ will enable chip to generate global EQ events inorder to interrupt
* the driver. EQ event is generated CQ index is hit or at least 1 CQ is
* outstanding and on chip timer expires
*/
int bnx2i_arm_cq_event_coalescing(struct bnx2i_endpoint *ep, u8 action)
{
struct bnx2i_5771x_cq_db *cq_db;
u16 cq_index;
u16 next_index = 0;
u32 num_active_cmds;
/* Coalesce CQ entries only on 10G devices */
if (!test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type))
return 0;
/* Do not update CQ DB multiple times before firmware writes
* '0xFFFF' to CQDB->SQN field. Deviation may cause spurious
* interrupts and other unwanted results
*/
cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt;
if (action != CNIC_ARM_CQE_FP)
if (cq_db->sqn[0] && cq_db->sqn[0] != 0xFFFF)
return 0;
if (action == CNIC_ARM_CQE || action == CNIC_ARM_CQE_FP) {
num_active_cmds = atomic_read(&ep->num_active_cmds);
if (num_active_cmds <= event_coal_min)
next_index = 1;
else {
next_index = num_active_cmds >> ep->ec_shift;
if (next_index > num_active_cmds - event_coal_min)
next_index = num_active_cmds - event_coal_min;
}
if (!next_index)
next_index = 1;
cq_index = ep->qp.cqe_exp_seq_sn + next_index - 1;
if (cq_index > ep->qp.cqe_size * 2)
cq_index -= ep->qp.cqe_size * 2;
if (!cq_index)
cq_index = 1;
cq_db->sqn[0] = cq_index;
}
return next_index;
}
/**
* bnx2i_get_rq_buf - copy RQ buffer contents to driver buffer
* @bnx2i_conn: iscsi connection on which RQ event occurred
* @ptr: driver buffer to which RQ buffer contents is to
* be copied
* @len: length of valid data inside RQ buf
*
* Copies RQ buffer contents from shared (DMA'able) memory region to
* driver buffer. RQ is used to DMA unsolicitated iscsi pdu's and
* scsi sense info
*/
void bnx2i_get_rq_buf(struct bnx2i_conn *bnx2i_conn, char *ptr, int len)
{
if (!bnx2i_conn->ep->qp.rqe_left)
return;
bnx2i_conn->ep->qp.rqe_left--;
memcpy(ptr, (u8 *) bnx2i_conn->ep->qp.rq_cons_qe, len);
if (bnx2i_conn->ep->qp.rq_cons_qe == bnx2i_conn->ep->qp.rq_last_qe) {
bnx2i_conn->ep->qp.rq_cons_qe = bnx2i_conn->ep->qp.rq_first_qe;
bnx2i_conn->ep->qp.rq_cons_idx = 0;
} else {
bnx2i_conn->ep->qp.rq_cons_qe++;
bnx2i_conn->ep->qp.rq_cons_idx++;
}
}
static void bnx2i_ring_577xx_doorbell(struct bnx2i_conn *conn)
{
struct bnx2i_5771x_dbell dbell;
u32 msg;
memset(&dbell, 0, sizeof(dbell));
dbell.dbell.header = (B577XX_ISCSI_CONNECTION_TYPE <<
B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT);
msg = *((u32 *)&dbell);
/* TODO : get doorbell register mapping */
writel(cpu_to_le32(msg), conn->ep->qp.ctx_base);
}
/**
* bnx2i_put_rq_buf - Replenish RQ buffer, if required ring on chip doorbell
* @bnx2i_conn: iscsi connection on which event to post
* @count: number of RQ buffer being posted to chip
*
* No need to ring hardware doorbell for 57710 family of devices
*/
void bnx2i_put_rq_buf(struct bnx2i_conn *bnx2i_conn, int count)
{
struct bnx2i_5771x_sq_rq_db *rq_db;
u16 hi_bit = (bnx2i_conn->ep->qp.rq_prod_idx & 0x8000);
struct bnx2i_endpoint *ep = bnx2i_conn->ep;
ep->qp.rqe_left += count;
ep->qp.rq_prod_idx &= 0x7FFF;
ep->qp.rq_prod_idx += count;
if (ep->qp.rq_prod_idx > bnx2i_conn->hba->max_rqes) {
ep->qp.rq_prod_idx %= bnx2i_conn->hba->max_rqes;
if (!hi_bit)
ep->qp.rq_prod_idx |= 0x8000;
} else
ep->qp.rq_prod_idx |= hi_bit;
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) {
rq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.rq_pgtbl_virt;
rq_db->prod_idx = ep->qp.rq_prod_idx;
/* no need to ring hardware doorbell for 57710 */
} else {
writew(ep->qp.rq_prod_idx,
ep->qp.ctx_base + CNIC_RECV_DOORBELL);
}
}
/**
* bnx2i_ring_sq_dbell - Ring SQ doorbell to wake-up the processing engine
* @bnx2i_conn: iscsi connection to which new SQ entries belong
* @count: number of SQ WQEs to post
*
* SQ DB is updated in host memory and TX Doorbell is rung for 57710 family
* of devices. For 5706/5708/5709 new SQ WQE count is written into the
* doorbell register
*/
static void bnx2i_ring_sq_dbell(struct bnx2i_conn *bnx2i_conn, int count)
{
struct bnx2i_5771x_sq_rq_db *sq_db;
struct bnx2i_endpoint *ep = bnx2i_conn->ep;
atomic_inc(&ep->num_active_cmds);
wmb(); /* flush SQ WQE memory before the doorbell is rung */
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) {
sq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.sq_pgtbl_virt;
sq_db->prod_idx = ep->qp.sq_prod_idx;
bnx2i_ring_577xx_doorbell(bnx2i_conn);
} else
writew(count, ep->qp.ctx_base + CNIC_SEND_DOORBELL);
}
/**
* bnx2i_ring_dbell_update_sq_params - update SQ driver parameters
* @bnx2i_conn: iscsi connection to which new SQ entries belong
* @count: number of SQ WQEs to post
*
* this routine will update SQ driver parameters and ring the doorbell
*/
static void bnx2i_ring_dbell_update_sq_params(struct bnx2i_conn *bnx2i_conn,
int count)
{
int tmp_cnt;
if (count == 1) {
if (bnx2i_conn->ep->qp.sq_prod_qe ==
bnx2i_conn->ep->qp.sq_last_qe)
bnx2i_conn->ep->qp.sq_prod_qe =
bnx2i_conn->ep->qp.sq_first_qe;
else
bnx2i_conn->ep->qp.sq_prod_qe++;
} else {
if ((bnx2i_conn->ep->qp.sq_prod_qe + count) <=
bnx2i_conn->ep->qp.sq_last_qe)
bnx2i_conn->ep->qp.sq_prod_qe += count;
else {
tmp_cnt = bnx2i_conn->ep->qp.sq_last_qe -
bnx2i_conn->ep->qp.sq_prod_qe;
bnx2i_conn->ep->qp.sq_prod_qe =
&bnx2i_conn->ep->qp.sq_first_qe[count -
(tmp_cnt + 1)];
}
}
bnx2i_conn->ep->qp.sq_prod_idx += count;
/* Ring the doorbell */
bnx2i_ring_sq_dbell(bnx2i_conn, bnx2i_conn->ep->qp.sq_prod_idx);
}
/**
* bnx2i_send_iscsi_login - post iSCSI login request MP WQE to hardware
* @bnx2i_conn: iscsi connection
* @task: transport layer's command structure pointer which is requesting
* a WQE to sent to chip for further processing
*
* prepare and post an iSCSI Login request WQE to CNIC firmware
*/
int bnx2i_send_iscsi_login(struct bnx2i_conn *bnx2i_conn,
struct iscsi_task *task)
{
struct bnx2i_login_request *login_wqe;
struct iscsi_login_req *login_hdr;
u32 dword;
login_hdr = (struct iscsi_login_req *)task->hdr;
login_wqe = (struct bnx2i_login_request *)
bnx2i_conn->ep->qp.sq_prod_qe;
login_wqe->op_code = login_hdr->opcode;
login_wqe->op_attr = login_hdr->flags;
login_wqe->version_max = login_hdr->max_version;
login_wqe->version_min = login_hdr->min_version;
login_wqe->data_length = ntoh24(login_hdr->dlength);
login_wqe->isid_lo = *((u32 *) login_hdr->isid);
login_wqe->isid_hi = *((u16 *) login_hdr->isid + 2);
login_wqe->tsih = login_hdr->tsih;
login_wqe->itt = task->itt |
(ISCSI_TASK_TYPE_MPATH << ISCSI_LOGIN_REQUEST_TYPE_SHIFT);
login_wqe->cid = login_hdr->cid;
login_wqe->cmd_sn = be32_to_cpu(login_hdr->cmdsn);
login_wqe->exp_stat_sn = be32_to_cpu(login_hdr->exp_statsn);
login_wqe->flags = ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN;
login_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma;
login_wqe->resp_bd_list_addr_hi =
(u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32);
dword = ((1 << ISCSI_LOGIN_REQUEST_NUM_RESP_BDS_SHIFT) |
(bnx2i_conn->gen_pdu.resp_buf_size <<
ISCSI_LOGIN_REQUEST_RESP_BUFFER_LENGTH_SHIFT));
login_wqe->resp_buffer = dword;
login_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma;
login_wqe->bd_list_addr_hi =
(u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32);
login_wqe->num_bds = 1;
login_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */
bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1);
return 0;
}
/**
* bnx2i_send_iscsi_tmf - post iSCSI task management request MP WQE to hardware
* @bnx2i_conn: iscsi connection
* @mtask: driver command structure which is requesting
* a WQE to sent to chip for further processing
*
* prepare and post an iSCSI Login request WQE to CNIC firmware
*/
int bnx2i_send_iscsi_tmf(struct bnx2i_conn *bnx2i_conn,
struct iscsi_task *mtask)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct iscsi_tm *tmfabort_hdr;
struct scsi_cmnd *ref_sc;
struct iscsi_task *ctask;
struct bnx2i_tmf_request *tmfabort_wqe;
u32 dword;
u32 scsi_lun[2];
tmfabort_hdr = (struct iscsi_tm *)mtask->hdr;
tmfabort_wqe = (struct bnx2i_tmf_request *)
bnx2i_conn->ep->qp.sq_prod_qe;
tmfabort_wqe->op_code = tmfabort_hdr->opcode;
tmfabort_wqe->op_attr = tmfabort_hdr->flags;
tmfabort_wqe->itt = (mtask->itt | (ISCSI_TASK_TYPE_MPATH << 14));
tmfabort_wqe->reserved2 = 0;
tmfabort_wqe->cmd_sn = be32_to_cpu(tmfabort_hdr->cmdsn);
switch (tmfabort_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) {
case ISCSI_TM_FUNC_ABORT_TASK:
case ISCSI_TM_FUNC_TASK_REASSIGN:
ctask = iscsi_itt_to_task(conn, tmfabort_hdr->rtt);
if (!ctask || !ctask->sc)
/*
* the iscsi layer must have completed the cmd while
* was starting up.
*
* Note: In the case of a SCSI cmd timeout, the task's
* sc is still active; hence ctask->sc != 0
* In this case, the task must be aborted
*/
return 0;
ref_sc = ctask->sc;
if (ref_sc->sc_data_direction == DMA_TO_DEVICE)
dword = (ISCSI_TASK_TYPE_WRITE <<
ISCSI_CMD_REQUEST_TYPE_SHIFT);
else
dword = (ISCSI_TASK_TYPE_READ <<
ISCSI_CMD_REQUEST_TYPE_SHIFT);
tmfabort_wqe->ref_itt = (dword |
(tmfabort_hdr->rtt & ISCSI_ITT_MASK));
break;
default:
tmfabort_wqe->ref_itt = RESERVED_ITT;
}
memcpy(scsi_lun, &tmfabort_hdr->lun, sizeof(struct scsi_lun));
tmfabort_wqe->lun[0] = be32_to_cpu(scsi_lun[0]);
tmfabort_wqe->lun[1] = be32_to_cpu(scsi_lun[1]);
tmfabort_wqe->ref_cmd_sn = be32_to_cpu(tmfabort_hdr->refcmdsn);
tmfabort_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma;
tmfabort_wqe->bd_list_addr_hi = (u32)
((u64) bnx2i_conn->hba->mp_bd_dma >> 32);
tmfabort_wqe->num_bds = 1;
tmfabort_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */
bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1);
return 0;
}
/**
* bnx2i_send_iscsi_text - post iSCSI text WQE to hardware
* @bnx2i_conn: iscsi connection
* @mtask: driver command structure which is requesting
* a WQE to sent to chip for further processing
*
* prepare and post an iSCSI Text request WQE to CNIC firmware
*/
int bnx2i_send_iscsi_text(struct bnx2i_conn *bnx2i_conn,
struct iscsi_task *mtask)
{
struct bnx2i_text_request *text_wqe;
struct iscsi_text *text_hdr;
u32 dword;
text_hdr = (struct iscsi_text *)mtask->hdr;
text_wqe = (struct bnx2i_text_request *) bnx2i_conn->ep->qp.sq_prod_qe;
memset(text_wqe, 0, sizeof(struct bnx2i_text_request));
text_wqe->op_code = text_hdr->opcode;
text_wqe->op_attr = text_hdr->flags;
text_wqe->data_length = ntoh24(text_hdr->dlength);
text_wqe->itt = mtask->itt |
(ISCSI_TASK_TYPE_MPATH << ISCSI_TEXT_REQUEST_TYPE_SHIFT);
text_wqe->ttt = be32_to_cpu(text_hdr->ttt);
text_wqe->cmd_sn = be32_to_cpu(text_hdr->cmdsn);
text_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma;
text_wqe->resp_bd_list_addr_hi =
(u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32);
dword = ((1 << ISCSI_TEXT_REQUEST_NUM_RESP_BDS_SHIFT) |
(bnx2i_conn->gen_pdu.resp_buf_size <<
ISCSI_TEXT_REQUEST_RESP_BUFFER_LENGTH_SHIFT));
text_wqe->resp_buffer = dword;
text_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma;
text_wqe->bd_list_addr_hi =
(u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32);
text_wqe->num_bds = 1;
text_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */
bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1);
return 0;
}
/**
* bnx2i_send_iscsi_scsicmd - post iSCSI scsicmd request WQE to hardware
* @bnx2i_conn: iscsi connection
* @cmd: driver command structure which is requesting
* a WQE to sent to chip for further processing
*
* prepare and post an iSCSI SCSI-CMD request WQE to CNIC firmware
*/
int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *bnx2i_conn,
struct bnx2i_cmd *cmd)
{
struct bnx2i_cmd_request *scsi_cmd_wqe;
scsi_cmd_wqe = (struct bnx2i_cmd_request *)
bnx2i_conn->ep->qp.sq_prod_qe;
memcpy(scsi_cmd_wqe, &cmd->req, sizeof(struct bnx2i_cmd_request));
scsi_cmd_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */
bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1);
return 0;
}
/**
* bnx2i_send_iscsi_nopout - post iSCSI NOPOUT request WQE to hardware
* @bnx2i_conn: iscsi connection
* @task: transport layer's command structure pointer which is
* requesting a WQE to sent to chip for further processing
* @datap: payload buffer pointer
* @data_len: payload data length
* @unsol: indicated whether nopout pdu is unsolicited pdu or
* in response to target's NOPIN w/ TTT != FFFFFFFF
*
* prepare and post a nopout request WQE to CNIC firmware
*/
int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn,
struct iscsi_task *task,
char *datap, int data_len, int unsol)
{
struct bnx2i_endpoint *ep = bnx2i_conn->ep;
struct bnx2i_nop_out_request *nopout_wqe;
struct iscsi_nopout *nopout_hdr;
nopout_hdr = (struct iscsi_nopout *)task->hdr;
nopout_wqe = (struct bnx2i_nop_out_request *)ep->qp.sq_prod_qe;
memset(nopout_wqe, 0x00, sizeof(struct bnx2i_nop_out_request));
nopout_wqe->op_code = nopout_hdr->opcode;
nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL;
memcpy(nopout_wqe->lun, &nopout_hdr->lun, 8);
/* 57710 requires LUN field to be swapped */
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type))
swap(nopout_wqe->lun[0], nopout_wqe->lun[1]);
nopout_wqe->itt = ((u16)task->itt |
(ISCSI_TASK_TYPE_MPATH <<
ISCSI_TMF_REQUEST_TYPE_SHIFT));
nopout_wqe->ttt = be32_to_cpu(nopout_hdr->ttt);
nopout_wqe->flags = 0;
if (!unsol)
nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION;
else if (nopout_hdr->itt == RESERVED_ITT)
nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION;
nopout_wqe->cmd_sn = be32_to_cpu(nopout_hdr->cmdsn);
nopout_wqe->data_length = data_len;
if (data_len) {
/* handle payload data, not required in first release */
printk(KERN_ALERT "NOPOUT: WARNING!! payload len != 0\n");
} else {
nopout_wqe->bd_list_addr_lo = (u32)
bnx2i_conn->hba->mp_bd_dma;
nopout_wqe->bd_list_addr_hi =
(u32) ((u64) bnx2i_conn->hba->mp_bd_dma >> 32);
nopout_wqe->num_bds = 1;
}
nopout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */
bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1);
return 0;
}
/**
* bnx2i_send_iscsi_logout - post iSCSI logout request WQE to hardware
* @bnx2i_conn: iscsi connection
* @task: transport layer's command structure pointer which is
* requesting a WQE to sent to chip for further processing
*
* prepare and post logout request WQE to CNIC firmware
*/
int bnx2i_send_iscsi_logout(struct bnx2i_conn *bnx2i_conn,
struct iscsi_task *task)
{
struct bnx2i_logout_request *logout_wqe;
struct iscsi_logout *logout_hdr;
logout_hdr = (struct iscsi_logout *)task->hdr;
logout_wqe = (struct bnx2i_logout_request *)
bnx2i_conn->ep->qp.sq_prod_qe;
memset(logout_wqe, 0x00, sizeof(struct bnx2i_logout_request));
logout_wqe->op_code = logout_hdr->opcode;
logout_wqe->cmd_sn = be32_to_cpu(logout_hdr->cmdsn);
logout_wqe->op_attr =
logout_hdr->flags | ISCSI_LOGOUT_REQUEST_ALWAYS_ONE;
logout_wqe->itt = ((u16)task->itt |
(ISCSI_TASK_TYPE_MPATH <<
ISCSI_LOGOUT_REQUEST_TYPE_SHIFT));
logout_wqe->data_length = 0;
logout_wqe->cid = 0;
logout_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma;
logout_wqe->bd_list_addr_hi = (u32)
((u64) bnx2i_conn->hba->mp_bd_dma >> 32);
logout_wqe->num_bds = 1;
logout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */
bnx2i_conn->ep->state = EP_STATE_LOGOUT_SENT;
bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1);
return 0;
}
/**
* bnx2i_update_iscsi_conn - post iSCSI logout request WQE to hardware
* @conn: iscsi connection which requires iscsi parameter update
*
* sends down iSCSI Conn Update request to move iSCSI conn to FFP
*/
void bnx2i_update_iscsi_conn(struct iscsi_conn *conn)
{
struct bnx2i_conn *bnx2i_conn = conn->dd_data;
struct bnx2i_hba *hba = bnx2i_conn->hba;
struct kwqe *kwqe_arr[2];
struct iscsi_kwqe_conn_update *update_wqe;
struct iscsi_kwqe_conn_update conn_update_kwqe;
update_wqe = &conn_update_kwqe;
update_wqe->hdr.op_code = ISCSI_KWQE_OPCODE_UPDATE_CONN;
update_wqe->hdr.flags =
(ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT);
/* 5771x requires conn context id to be passed as is */
if (test_bit(BNX2I_NX2_DEV_57710, &bnx2i_conn->ep->hba->cnic_dev_type))
update_wqe->context_id = bnx2i_conn->ep->ep_cid;
else
update_wqe->context_id = (bnx2i_conn->ep->ep_cid >> 7);
update_wqe->conn_flags = 0;
if (conn->hdrdgst_en)
update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST;
if (conn->datadgst_en)
update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST;
if (conn->session->initial_r2t_en)
update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T;
if (conn->session->imm_data_en)
update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA;
update_wqe->max_send_pdu_length = conn->max_xmit_dlength;
update_wqe->max_recv_pdu_length = conn->max_recv_dlength;
update_wqe->first_burst_length = conn->session->first_burst;
update_wqe->max_burst_length = conn->session->max_burst;
update_wqe->exp_stat_sn = conn->exp_statsn;
update_wqe->max_outstanding_r2ts = conn->session->max_r2t;
update_wqe->session_error_recovery_level = conn->session->erl;
iscsi_conn_printk(KERN_ALERT, conn,
"bnx2i: conn update - MBL 0x%x FBL 0x%x"
"MRDSL_I 0x%x MRDSL_T 0x%x \n",
update_wqe->max_burst_length,
update_wqe->first_burst_length,
update_wqe->max_recv_pdu_length,
update_wqe->max_send_pdu_length);
kwqe_arr[0] = (struct kwqe *) update_wqe;
if (hba->cnic && hba->cnic->submit_kwqes)
hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1);
}
/**
* bnx2i_ep_ofld_timer - post iSCSI logout request WQE to hardware
* @t: timer context used to fetch the endpoint (transport
* handle) structure pointer
*
* routine to handle connection offload/destroy request timeout
*/
void bnx2i_ep_ofld_timer(struct timer_list *t)
{
struct bnx2i_endpoint *ep = from_timer(ep, t, ofld_timer);
if (ep->state == EP_STATE_OFLD_START) {
printk(KERN_ALERT "ofld_timer: CONN_OFLD timeout\n");
ep->state = EP_STATE_OFLD_FAILED;
} else if (ep->state == EP_STATE_DISCONN_START) {
printk(KERN_ALERT "ofld_timer: CONN_DISCON timeout\n");
ep->state = EP_STATE_DISCONN_TIMEDOUT;
} else if (ep->state == EP_STATE_CLEANUP_START) {
printk(KERN_ALERT "ofld_timer: CONN_CLEANUP timeout\n");
ep->state = EP_STATE_CLEANUP_FAILED;
}
wake_up_interruptible(&ep->ofld_wait);
}
static int bnx2i_power_of2(u32 val)
{
u32 power = 0;
if (val & (val - 1))
return power;
val--;
while (val) {
val = val >> 1;
power++;
}
return power;
}
/**
* bnx2i_send_cmd_cleanup_req - send iscsi cmd context clean-up request
* @hba: adapter structure pointer
* @cmd: driver command structure which is requesting
* a WQE to sent to chip for further processing
*
* prepares and posts CONN_OFLD_REQ1/2 KWQE
*/
void bnx2i_send_cmd_cleanup_req(struct bnx2i_hba *hba, struct bnx2i_cmd *cmd)
{
struct bnx2i_cleanup_request *cmd_cleanup;
cmd_cleanup =
(struct bnx2i_cleanup_request *)cmd->conn->ep->qp.sq_prod_qe;
memset(cmd_cleanup, 0x00, sizeof(struct bnx2i_cleanup_request));
cmd_cleanup->op_code = ISCSI_OPCODE_CLEANUP_REQUEST;
cmd_cleanup->itt = cmd->req.itt;
cmd_cleanup->cq_index = 0; /* CQ# used for completion, 5771x only */
bnx2i_ring_dbell_update_sq_params(cmd->conn, 1);
}
/**
* bnx2i_send_conn_destroy - initiates iscsi connection teardown process
* @hba: adapter structure pointer
* @ep: endpoint (transport identifier) structure
*
* this routine prepares and posts CONN_OFLD_REQ1/2 KWQE to initiate
* iscsi connection context clean-up process
*/
int bnx2i_send_conn_destroy(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep)
{
struct kwqe *kwqe_arr[2];
struct iscsi_kwqe_conn_destroy conn_cleanup;
int rc = -EINVAL;
memset(&conn_cleanup, 0x00, sizeof(struct iscsi_kwqe_conn_destroy));
conn_cleanup.hdr.op_code = ISCSI_KWQE_OPCODE_DESTROY_CONN;
conn_cleanup.hdr.flags =
(ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT);
/* 5771x requires conn context id to be passed as is */
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type))
conn_cleanup.context_id = ep->ep_cid;
else
conn_cleanup.context_id = (ep->ep_cid >> 7);
conn_cleanup.reserved0 = (u16)ep->ep_iscsi_cid;
kwqe_arr[0] = (struct kwqe *) &conn_cleanup;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1);
return rc;
}
/**
* bnx2i_570x_send_conn_ofld_req - initiates iscsi conn context setup process
* @hba: adapter structure pointer
* @ep: endpoint (transport identifier) structure
*
* 5706/5708/5709 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE
*/
static int bnx2i_570x_send_conn_ofld_req(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
struct kwqe *kwqe_arr[2];
struct iscsi_kwqe_conn_offload1 ofld_req1;
struct iscsi_kwqe_conn_offload2 ofld_req2;
dma_addr_t dma_addr;
int num_kwqes = 2;
u32 *ptbl;
int rc = -EINVAL;
ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1;
ofld_req1.hdr.flags =
(ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT);
ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid;
dma_addr = ep->qp.sq_pgtbl_phys;
ofld_req1.sq_page_table_addr_lo = (u32) dma_addr;
ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32);
dma_addr = ep->qp.cq_pgtbl_phys;
ofld_req1.cq_page_table_addr_lo = (u32) dma_addr;
ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32);
ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2;
ofld_req2.hdr.flags =
(ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT);
dma_addr = ep->qp.rq_pgtbl_phys;
ofld_req2.rq_page_table_addr_lo = (u32) dma_addr;
ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32);
ptbl = (u32 *) ep->qp.sq_pgtbl_virt;
ofld_req2.sq_first_pte.hi = *ptbl++;
ofld_req2.sq_first_pte.lo = *ptbl;
ptbl = (u32 *) ep->qp.cq_pgtbl_virt;
ofld_req2.cq_first_pte.hi = *ptbl++;
ofld_req2.cq_first_pte.lo = *ptbl;
kwqe_arr[0] = (struct kwqe *) &ofld_req1;
kwqe_arr[1] = (struct kwqe *) &ofld_req2;
ofld_req2.num_additional_wqes = 0;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
/**
* bnx2i_5771x_send_conn_ofld_req - initiates iscsi connection context creation
* @hba: adapter structure pointer
* @ep: endpoint (transport identifier) structure
*
* 57710 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE
*/
static int bnx2i_5771x_send_conn_ofld_req(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
struct kwqe *kwqe_arr[5];
struct iscsi_kwqe_conn_offload1 ofld_req1;
struct iscsi_kwqe_conn_offload2 ofld_req2;
struct iscsi_kwqe_conn_offload3 ofld_req3[1];
dma_addr_t dma_addr;
int num_kwqes = 2;
u32 *ptbl;
int rc = -EINVAL;
ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1;
ofld_req1.hdr.flags =
(ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT);
ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid;
dma_addr = ep->qp.sq_pgtbl_phys + ISCSI_SQ_DB_SIZE;
ofld_req1.sq_page_table_addr_lo = (u32) dma_addr;
ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32);
dma_addr = ep->qp.cq_pgtbl_phys + ISCSI_CQ_DB_SIZE;
ofld_req1.cq_page_table_addr_lo = (u32) dma_addr;
ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32);
ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2;
ofld_req2.hdr.flags =
(ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT);
dma_addr = ep->qp.rq_pgtbl_phys + ISCSI_RQ_DB_SIZE;
ofld_req2.rq_page_table_addr_lo = (u32) dma_addr;
ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32);
ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE);
ofld_req2.sq_first_pte.hi = *ptbl++;
ofld_req2.sq_first_pte.lo = *ptbl;
ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE);
ofld_req2.cq_first_pte.hi = *ptbl++;
ofld_req2.cq_first_pte.lo = *ptbl;
kwqe_arr[0] = (struct kwqe *) &ofld_req1;
kwqe_arr[1] = (struct kwqe *) &ofld_req2;
ofld_req2.num_additional_wqes = 1;
memset(ofld_req3, 0x00, sizeof(ofld_req3[0]));
ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE);
ofld_req3[0].qp_first_pte[0].hi = *ptbl++;
ofld_req3[0].qp_first_pte[0].lo = *ptbl;
kwqe_arr[2] = (struct kwqe *) ofld_req3;
/* need if we decide to go with multiple KCQE's per conn */
num_kwqes += 1;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
/**
* bnx2i_send_conn_ofld_req - initiates iscsi connection context setup process
*
* @hba: adapter structure pointer
* @ep: endpoint (transport identifier) structure
*
* this routine prepares and posts CONN_OFLD_REQ1/2 KWQE
*/
int bnx2i_send_conn_ofld_req(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep)
{
int rc;
if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type))
rc = bnx2i_5771x_send_conn_ofld_req(hba, ep);
else
rc = bnx2i_570x_send_conn_ofld_req(hba, ep);
return rc;
}
/**
* setup_qp_page_tables - iscsi QP page table setup function
* @ep: endpoint (transport identifier) structure
*
* Sets up page tables for SQ/RQ/CQ, 1G/sec (5706/5708/5709) devices requires
* 64-bit address in big endian format. Whereas 10G/sec (57710) requires
* PT in little endian format
*/
static void setup_qp_page_tables(struct bnx2i_endpoint *ep)
{
int num_pages;
u32 *ptbl;
dma_addr_t page;
int cnic_dev_10g;
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type))
cnic_dev_10g = 1;
else
cnic_dev_10g = 0;
/* SQ page table */
memset(ep->qp.sq_pgtbl_virt, 0, ep->qp.sq_pgtbl_size);
num_pages = ep->qp.sq_mem_size / CNIC_PAGE_SIZE;
page = ep->qp.sq_phys;
if (cnic_dev_10g)
ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE);
else
ptbl = (u32 *) ep->qp.sq_pgtbl_virt;
while (num_pages--) {
if (cnic_dev_10g) {
/* PTE is written in little endian format for 57710 */
*ptbl = (u32) page;
ptbl++;
*ptbl = (u32) ((u64) page >> 32);
ptbl++;
page += CNIC_PAGE_SIZE;
} else {
/* PTE is written in big endian format for
* 5706/5708/5709 devices */
*ptbl = (u32) ((u64) page >> 32);
ptbl++;
*ptbl = (u32) page;
ptbl++;
page += CNIC_PAGE_SIZE;
}
}
/* RQ page table */
memset(ep->qp.rq_pgtbl_virt, 0, ep->qp.rq_pgtbl_size);
num_pages = ep->qp.rq_mem_size / CNIC_PAGE_SIZE;
page = ep->qp.rq_phys;
if (cnic_dev_10g)
ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE);
else
ptbl = (u32 *) ep->qp.rq_pgtbl_virt;
while (num_pages--) {
if (cnic_dev_10g) {
/* PTE is written in little endian format for 57710 */
*ptbl = (u32) page;
ptbl++;
*ptbl = (u32) ((u64) page >> 32);
ptbl++;
page += CNIC_PAGE_SIZE;
} else {
/* PTE is written in big endian format for
* 5706/5708/5709 devices */
*ptbl = (u32) ((u64) page >> 32);
ptbl++;
*ptbl = (u32) page;
ptbl++;
page += CNIC_PAGE_SIZE;
}
}
/* CQ page table */
memset(ep->qp.cq_pgtbl_virt, 0, ep->qp.cq_pgtbl_size);
num_pages = ep->qp.cq_mem_size / CNIC_PAGE_SIZE;
page = ep->qp.cq_phys;
if (cnic_dev_10g)
ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE);
else
ptbl = (u32 *) ep->qp.cq_pgtbl_virt;
while (num_pages--) {
if (cnic_dev_10g) {
/* PTE is written in little endian format for 57710 */
*ptbl = (u32) page;
ptbl++;
*ptbl = (u32) ((u64) page >> 32);
ptbl++;
page += CNIC_PAGE_SIZE;
} else {
/* PTE is written in big endian format for
* 5706/5708/5709 devices */
*ptbl = (u32) ((u64) page >> 32);
ptbl++;
*ptbl = (u32) page;
ptbl++;
page += CNIC_PAGE_SIZE;
}
}
}
/**
* bnx2i_alloc_qp_resc - allocates required resources for QP.
* @hba: adapter structure pointer
* @ep: endpoint (transport identifier) structure
*
* Allocate QP (transport layer for iSCSI connection) resources, DMA'able
* memory for SQ/RQ/CQ and page tables. EP structure elements such
* as producer/consumer indexes/pointers, queue sizes and page table
* contents are setup
*/
int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep)
{
struct bnx2i_5771x_cq_db *cq_db;
ep->hba = hba;
ep->conn = NULL;
ep->ep_cid = ep->ep_iscsi_cid = ep->ep_pg_cid = 0;
/* Allocate page table memory for SQ which is page aligned */
ep->qp.sq_mem_size = hba->max_sqes * BNX2I_SQ_WQE_SIZE;
ep->qp.sq_mem_size =
(ep->qp.sq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
ep->qp.sq_pgtbl_size =
(ep->qp.sq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
ep->qp.sq_pgtbl_size =
(ep->qp.sq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
ep->qp.sq_pgtbl_virt =
dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size,
&ep->qp.sq_pgtbl_phys, GFP_KERNEL);
if (!ep->qp.sq_pgtbl_virt) {
printk(KERN_ALERT "bnx2i: unable to alloc SQ PT mem (%d)\n",
ep->qp.sq_pgtbl_size);
goto mem_alloc_err;
}
/* Allocate memory area for actual SQ element */
ep->qp.sq_virt =
dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size,
&ep->qp.sq_phys, GFP_KERNEL);
if (!ep->qp.sq_virt) {
printk(KERN_ALERT "bnx2i: unable to alloc SQ BD memory %d\n",
ep->qp.sq_mem_size);
goto mem_alloc_err;
}
ep->qp.sq_first_qe = ep->qp.sq_virt;
ep->qp.sq_prod_qe = ep->qp.sq_first_qe;
ep->qp.sq_cons_qe = ep->qp.sq_first_qe;
ep->qp.sq_last_qe = &ep->qp.sq_first_qe[hba->max_sqes - 1];
ep->qp.sq_prod_idx = 0;
ep->qp.sq_cons_idx = 0;
ep->qp.sqe_left = hba->max_sqes;
/* Allocate page table memory for CQ which is page aligned */
ep->qp.cq_mem_size = hba->max_cqes * BNX2I_CQE_SIZE;
ep->qp.cq_mem_size =
(ep->qp.cq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
ep->qp.cq_pgtbl_size =
(ep->qp.cq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
ep->qp.cq_pgtbl_size =
(ep->qp.cq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
ep->qp.cq_pgtbl_virt =
dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size,
&ep->qp.cq_pgtbl_phys, GFP_KERNEL);
if (!ep->qp.cq_pgtbl_virt) {
printk(KERN_ALERT "bnx2i: unable to alloc CQ PT memory %d\n",
ep->qp.cq_pgtbl_size);
goto mem_alloc_err;
}
/* Allocate memory area for actual CQ element */
ep->qp.cq_virt =
dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size,
&ep->qp.cq_phys, GFP_KERNEL);
if (!ep->qp.cq_virt) {
printk(KERN_ALERT "bnx2i: unable to alloc CQ BD memory %d\n",
ep->qp.cq_mem_size);
goto mem_alloc_err;
}
ep->qp.cq_first_qe = ep->qp.cq_virt;
ep->qp.cq_prod_qe = ep->qp.cq_first_qe;
ep->qp.cq_cons_qe = ep->qp.cq_first_qe;
ep->qp.cq_last_qe = &ep->qp.cq_first_qe[hba->max_cqes - 1];
ep->qp.cq_prod_idx = 0;
ep->qp.cq_cons_idx = 0;
ep->qp.cqe_left = hba->max_cqes;
ep->qp.cqe_exp_seq_sn = ISCSI_INITIAL_SN;
ep->qp.cqe_size = hba->max_cqes;
/* Invalidate all EQ CQE index, req only for 57710 */
cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt;
memset(cq_db->sqn, 0xFF, sizeof(cq_db->sqn[0]) * BNX2X_MAX_CQS);
/* Allocate page table memory for RQ which is page aligned */
ep->qp.rq_mem_size = hba->max_rqes * BNX2I_RQ_WQE_SIZE;
ep->qp.rq_mem_size =
(ep->qp.rq_mem_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
ep->qp.rq_pgtbl_size =
(ep->qp.rq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
ep->qp.rq_pgtbl_size =
(ep->qp.rq_pgtbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
ep->qp.rq_pgtbl_virt =
dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size,
&ep->qp.rq_pgtbl_phys, GFP_KERNEL);
if (!ep->qp.rq_pgtbl_virt) {
printk(KERN_ALERT "bnx2i: unable to alloc RQ PT mem %d\n",
ep->qp.rq_pgtbl_size);
goto mem_alloc_err;
}
/* Allocate memory area for actual RQ element */
ep->qp.rq_virt =
dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size,
&ep->qp.rq_phys, GFP_KERNEL);
if (!ep->qp.rq_virt) {
printk(KERN_ALERT "bnx2i: unable to alloc RQ BD memory %d\n",
ep->qp.rq_mem_size);
goto mem_alloc_err;
}
ep->qp.rq_first_qe = ep->qp.rq_virt;
ep->qp.rq_prod_qe = ep->qp.rq_first_qe;
ep->qp.rq_cons_qe = ep->qp.rq_first_qe;
ep->qp.rq_last_qe = &ep->qp.rq_first_qe[hba->max_rqes - 1];
ep->qp.rq_prod_idx = 0x8000;
ep->qp.rq_cons_idx = 0;
ep->qp.rqe_left = hba->max_rqes;
setup_qp_page_tables(ep);
return 0;
mem_alloc_err:
bnx2i_free_qp_resc(hba, ep);
return -ENOMEM;
}
/**
* bnx2i_free_qp_resc - free memory resources held by QP
* @hba: adapter structure pointer
* @ep: endpoint (transport identifier) structure
*
* Free QP resources - SQ/RQ/CQ memory and page tables.
*/
void bnx2i_free_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep)
{
if (ep->qp.ctx_base) {
iounmap(ep->qp.ctx_base);
ep->qp.ctx_base = NULL;
}
/* Free SQ mem */
if (ep->qp.sq_pgtbl_virt) {
dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size,
ep->qp.sq_pgtbl_virt, ep->qp.sq_pgtbl_phys);
ep->qp.sq_pgtbl_virt = NULL;
ep->qp.sq_pgtbl_phys = 0;
}
if (ep->qp.sq_virt) {
dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size,
ep->qp.sq_virt, ep->qp.sq_phys);
ep->qp.sq_virt = NULL;
ep->qp.sq_phys = 0;
}
/* Free RQ mem */
if (ep->qp.rq_pgtbl_virt) {
dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size,
ep->qp.rq_pgtbl_virt, ep->qp.rq_pgtbl_phys);
ep->qp.rq_pgtbl_virt = NULL;
ep->qp.rq_pgtbl_phys = 0;
}
if (ep->qp.rq_virt) {
dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size,
ep->qp.rq_virt, ep->qp.rq_phys);
ep->qp.rq_virt = NULL;
ep->qp.rq_phys = 0;
}
/* Free CQ mem */
if (ep->qp.cq_pgtbl_virt) {
dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size,
ep->qp.cq_pgtbl_virt, ep->qp.cq_pgtbl_phys);
ep->qp.cq_pgtbl_virt = NULL;
ep->qp.cq_pgtbl_phys = 0;
}
if (ep->qp.cq_virt) {
dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size,
ep->qp.cq_virt, ep->qp.cq_phys);
ep->qp.cq_virt = NULL;
ep->qp.cq_phys = 0;
}
}
/**
* bnx2i_send_fw_iscsi_init_msg - initiates initial handshake with iscsi f/w
* @hba: adapter structure pointer
*
* Send down iscsi_init KWQEs which initiates the initial handshake with the f/w
* This results in iSCSi support validation and on-chip context manager
* initialization. Firmware completes this handshake with a CQE carrying
* the result of iscsi support validation. Parameter carried by
* iscsi init request determines the number of offloaded connection and
* tolerance level for iscsi protocol violation this hba/chip can support
*/
int bnx2i_send_fw_iscsi_init_msg(struct bnx2i_hba *hba)
{
struct kwqe *kwqe_arr[3];
struct iscsi_kwqe_init1 iscsi_init;
struct iscsi_kwqe_init2 iscsi_init2;
int rc = 0;
u64 mask64;
memset(&iscsi_init, 0x00, sizeof(struct iscsi_kwqe_init1));
memset(&iscsi_init2, 0x00, sizeof(struct iscsi_kwqe_init2));
bnx2i_adjust_qp_size(hba);
iscsi_init.flags =
(CNIC_PAGE_BITS - 8) << ISCSI_KWQE_INIT1_PAGE_SIZE_SHIFT;
if (en_tcp_dack)
iscsi_init.flags |= ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE;
iscsi_init.reserved0 = 0;
iscsi_init.num_cqs = 1;
iscsi_init.hdr.op_code = ISCSI_KWQE_OPCODE_INIT1;
iscsi_init.hdr.flags =
(ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT);
iscsi_init.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma;
iscsi_init.dummy_buffer_addr_hi =
(u32) ((u64) hba->dummy_buf_dma >> 32);
hba->num_ccell = hba->max_sqes >> 1;
hba->ctx_ccell_tasks =
((hba->num_ccell & 0xFFFF) | (hba->max_sqes << 16));
iscsi_init.num_ccells_per_conn = hba->num_ccell;
iscsi_init.num_tasks_per_conn = hba->max_sqes;
iscsi_init.sq_wqes_per_page = CNIC_PAGE_SIZE / BNX2I_SQ_WQE_SIZE;
iscsi_init.sq_num_wqes = hba->max_sqes;
iscsi_init.cq_log_wqes_per_page =
(u8) bnx2i_power_of2(CNIC_PAGE_SIZE / BNX2I_CQE_SIZE);
iscsi_init.cq_num_wqes = hba->max_cqes;
iscsi_init.cq_num_pages = (hba->max_cqes * BNX2I_CQE_SIZE +
(CNIC_PAGE_SIZE - 1)) / CNIC_PAGE_SIZE;
iscsi_init.sq_num_pages = (hba->max_sqes * BNX2I_SQ_WQE_SIZE +
(CNIC_PAGE_SIZE - 1)) / CNIC_PAGE_SIZE;
iscsi_init.rq_buffer_size = BNX2I_RQ_WQE_SIZE;
iscsi_init.rq_num_wqes = hba->max_rqes;
iscsi_init2.hdr.op_code = ISCSI_KWQE_OPCODE_INIT2;
iscsi_init2.hdr.flags =
(ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT);
iscsi_init2.max_cq_sqn = hba->max_cqes * 2 + 1;
mask64 = 0x0ULL;
mask64 |= (
/* CISCO MDS */
(1UL <<
ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV) |
/* HP MSA1510i */
(1UL <<
ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN) |
/* EMC */
(1ULL << ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN));
if (error_mask1) {
iscsi_init2.error_bit_map[0] = error_mask1;
mask64 ^= (u32)(mask64);
mask64 |= error_mask1;
} else
iscsi_init2.error_bit_map[0] = (u32) mask64;
if (error_mask2) {
iscsi_init2.error_bit_map[1] = error_mask2;
mask64 &= 0xffffffff;
mask64 |= ((u64)error_mask2 << 32);
} else
iscsi_init2.error_bit_map[1] = (u32) (mask64 >> 32);
iscsi_error_mask = mask64;
kwqe_arr[0] = (struct kwqe *) &iscsi_init;
kwqe_arr[1] = (struct kwqe *) &iscsi_init2;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 2);
return rc;
}
/**
* bnx2i_process_scsi_cmd_resp - this function handles scsi cmd completion.
* @session: iscsi session
* @bnx2i_conn: bnx2i connection
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process SCSI CMD Response CQE & complete the request to SCSI-ML
*/
int bnx2i_process_scsi_cmd_resp(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct bnx2i_hba *hba = bnx2i_conn->hba;
struct bnx2i_cmd_response *resp_cqe;
struct bnx2i_cmd *bnx2i_cmd;
struct iscsi_task *task;
struct iscsi_scsi_rsp *hdr;
u32 datalen = 0;
resp_cqe = (struct bnx2i_cmd_response *)cqe;
spin_lock_bh(&session->back_lock);
task = iscsi_itt_to_task(conn,
resp_cqe->itt & ISCSI_CMD_RESPONSE_INDEX);
if (!task)
goto fail;
bnx2i_cmd = task->dd_data;
if (bnx2i_cmd->req.op_attr & ISCSI_CMD_REQUEST_READ) {
conn->datain_pdus_cnt +=
resp_cqe->task_stat.read_stat.num_data_ins;
conn->rxdata_octets +=
bnx2i_cmd->req.total_data_transfer_length;
ADD_STATS_64(hba, rx_pdus,
resp_cqe->task_stat.read_stat.num_data_ins);
ADD_STATS_64(hba, rx_bytes,
bnx2i_cmd->req.total_data_transfer_length);
} else {
conn->dataout_pdus_cnt +=
resp_cqe->task_stat.write_stat.num_data_outs;
conn->r2t_pdus_cnt +=
resp_cqe->task_stat.write_stat.num_r2ts;
conn->txdata_octets +=
bnx2i_cmd->req.total_data_transfer_length;
ADD_STATS_64(hba, tx_pdus,
resp_cqe->task_stat.write_stat.num_data_outs);
ADD_STATS_64(hba, tx_bytes,
bnx2i_cmd->req.total_data_transfer_length);
ADD_STATS_64(hba, rx_pdus,
resp_cqe->task_stat.write_stat.num_r2ts);
}
bnx2i_iscsi_unmap_sg_list(bnx2i_cmd);
hdr = (struct iscsi_scsi_rsp *)task->hdr;
resp_cqe = (struct bnx2i_cmd_response *)cqe;
hdr->opcode = resp_cqe->op_code;
hdr->max_cmdsn = cpu_to_be32(resp_cqe->max_cmd_sn);
hdr->exp_cmdsn = cpu_to_be32(resp_cqe->exp_cmd_sn);
hdr->response = resp_cqe->response;
hdr->cmd_status = resp_cqe->status;
hdr->flags = resp_cqe->response_flags;
hdr->residual_count = cpu_to_be32(resp_cqe->residual_count);
if (resp_cqe->op_code == ISCSI_OP_SCSI_DATA_IN)
goto done;
if (resp_cqe->status == SAM_STAT_CHECK_CONDITION) {
datalen = resp_cqe->data_length;
if (datalen < 2)
goto done;
if (datalen > BNX2I_RQ_WQE_SIZE) {
iscsi_conn_printk(KERN_ERR, conn,
"sense data len %d > RQ sz\n",
datalen);
datalen = BNX2I_RQ_WQE_SIZE;
} else if (datalen > ISCSI_DEF_MAX_RECV_SEG_LEN) {
iscsi_conn_printk(KERN_ERR, conn,
"sense data len %d > conn data\n",
datalen);
datalen = ISCSI_DEF_MAX_RECV_SEG_LEN;
}
bnx2i_get_rq_buf(bnx2i_cmd->conn, conn->data, datalen);
bnx2i_put_rq_buf(bnx2i_cmd->conn, 1);
}
done:
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr,
conn->data, datalen);
fail:
spin_unlock_bh(&session->back_lock);
return 0;
}
/**
* bnx2i_process_login_resp - this function handles iscsi login response
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process Login Response CQE & complete it to open-iscsi user daemon
*/
static int bnx2i_process_login_resp(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct iscsi_task *task;
struct bnx2i_login_response *login;
struct iscsi_login_rsp *resp_hdr;
int pld_len;
int pad_len;
login = (struct bnx2i_login_response *) cqe;
spin_lock(&session->back_lock);
task = iscsi_itt_to_task(conn,
login->itt & ISCSI_LOGIN_RESPONSE_INDEX);
if (!task)
goto done;
resp_hdr = (struct iscsi_login_rsp *) &bnx2i_conn->gen_pdu.resp_hdr;
memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
resp_hdr->opcode = login->op_code;
resp_hdr->flags = login->response_flags;
resp_hdr->max_version = login->version_max;
resp_hdr->active_version = login->version_active;
resp_hdr->hlength = 0;
hton24(resp_hdr->dlength, login->data_length);
memcpy(resp_hdr->isid, &login->isid_lo, 6);
resp_hdr->tsih = cpu_to_be16(login->tsih);
resp_hdr->itt = task->hdr->itt;
resp_hdr->statsn = cpu_to_be32(login->stat_sn);
resp_hdr->exp_cmdsn = cpu_to_be32(login->exp_cmd_sn);
resp_hdr->max_cmdsn = cpu_to_be32(login->max_cmd_sn);
resp_hdr->status_class = login->status_class;
resp_hdr->status_detail = login->status_detail;
pld_len = login->data_length;
bnx2i_conn->gen_pdu.resp_wr_ptr =
bnx2i_conn->gen_pdu.resp_buf + pld_len;
pad_len = 0;
if (pld_len & 0x3)
pad_len = 4 - (pld_len % 4);
if (pad_len) {
int i = 0;
for (i = 0; i < pad_len; i++) {
bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0;
bnx2i_conn->gen_pdu.resp_wr_ptr++;
}
}
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr,
bnx2i_conn->gen_pdu.resp_buf,
bnx2i_conn->gen_pdu.resp_wr_ptr - bnx2i_conn->gen_pdu.resp_buf);
done:
spin_unlock(&session->back_lock);
return 0;
}
/**
* bnx2i_process_text_resp - this function handles iscsi text response
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process iSCSI Text Response CQE& complete it to open-iscsi user daemon
*/
static int bnx2i_process_text_resp(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct iscsi_task *task;
struct bnx2i_text_response *text;
struct iscsi_text_rsp *resp_hdr;
int pld_len;
int pad_len;
text = (struct bnx2i_text_response *) cqe;
spin_lock(&session->back_lock);
task = iscsi_itt_to_task(conn, text->itt & ISCSI_LOGIN_RESPONSE_INDEX);
if (!task)
goto done;
resp_hdr = (struct iscsi_text_rsp *)&bnx2i_conn->gen_pdu.resp_hdr;
memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
resp_hdr->opcode = text->op_code;
resp_hdr->flags = text->response_flags;
resp_hdr->hlength = 0;
hton24(resp_hdr->dlength, text->data_length);
resp_hdr->itt = task->hdr->itt;
resp_hdr->ttt = cpu_to_be32(text->ttt);
resp_hdr->statsn = task->hdr->exp_statsn;
resp_hdr->exp_cmdsn = cpu_to_be32(text->exp_cmd_sn);
resp_hdr->max_cmdsn = cpu_to_be32(text->max_cmd_sn);
pld_len = text->data_length;
bnx2i_conn->gen_pdu.resp_wr_ptr = bnx2i_conn->gen_pdu.resp_buf +
pld_len;
pad_len = 0;
if (pld_len & 0x3)
pad_len = 4 - (pld_len % 4);
if (pad_len) {
int i = 0;
for (i = 0; i < pad_len; i++) {
bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0;
bnx2i_conn->gen_pdu.resp_wr_ptr++;
}
}
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr,
bnx2i_conn->gen_pdu.resp_buf,
bnx2i_conn->gen_pdu.resp_wr_ptr -
bnx2i_conn->gen_pdu.resp_buf);
done:
spin_unlock(&session->back_lock);
return 0;
}
/**
* bnx2i_process_tmf_resp - this function handles iscsi TMF response
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process iSCSI TMF Response CQE and wake up the driver eh thread.
*/
static int bnx2i_process_tmf_resp(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct iscsi_task *task;
struct bnx2i_tmf_response *tmf_cqe;
struct iscsi_tm_rsp *resp_hdr;
tmf_cqe = (struct bnx2i_tmf_response *)cqe;
spin_lock(&session->back_lock);
task = iscsi_itt_to_task(conn,
tmf_cqe->itt & ISCSI_TMF_RESPONSE_INDEX);
if (!task)
goto done;
resp_hdr = (struct iscsi_tm_rsp *) &bnx2i_conn->gen_pdu.resp_hdr;
memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
resp_hdr->opcode = tmf_cqe->op_code;
resp_hdr->max_cmdsn = cpu_to_be32(tmf_cqe->max_cmd_sn);
resp_hdr->exp_cmdsn = cpu_to_be32(tmf_cqe->exp_cmd_sn);
resp_hdr->itt = task->hdr->itt;
resp_hdr->response = tmf_cqe->response;
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0);
done:
spin_unlock(&session->back_lock);
return 0;
}
/**
* bnx2i_process_logout_resp - this function handles iscsi logout response
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process iSCSI Logout Response CQE & make function call to
* notify the user daemon.
*/
static int bnx2i_process_logout_resp(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct iscsi_task *task;
struct bnx2i_logout_response *logout;
struct iscsi_logout_rsp *resp_hdr;
logout = (struct bnx2i_logout_response *) cqe;
spin_lock(&session->back_lock);
task = iscsi_itt_to_task(conn,
logout->itt & ISCSI_LOGOUT_RESPONSE_INDEX);
if (!task)
goto done;
resp_hdr = (struct iscsi_logout_rsp *) &bnx2i_conn->gen_pdu.resp_hdr;
memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
resp_hdr->opcode = logout->op_code;
resp_hdr->flags = logout->response;
resp_hdr->hlength = 0;
resp_hdr->itt = task->hdr->itt;
resp_hdr->statsn = task->hdr->exp_statsn;
resp_hdr->exp_cmdsn = cpu_to_be32(logout->exp_cmd_sn);
resp_hdr->max_cmdsn = cpu_to_be32(logout->max_cmd_sn);
resp_hdr->t2wait = cpu_to_be32(logout->time_to_wait);
resp_hdr->t2retain = cpu_to_be32(logout->time_to_retain);
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0);
bnx2i_conn->ep->state = EP_STATE_LOGOUT_RESP_RCVD;
done:
spin_unlock(&session->back_lock);
return 0;
}
/**
* bnx2i_process_nopin_local_cmpl - this function handles iscsi nopin CQE
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process iSCSI NOPIN local completion CQE, frees IIT and command structures
*/
static void bnx2i_process_nopin_local_cmpl(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct bnx2i_nop_in_msg *nop_in;
struct iscsi_task *task;
nop_in = (struct bnx2i_nop_in_msg *)cqe;
spin_lock(&session->back_lock);
task = iscsi_itt_to_task(conn,
nop_in->itt & ISCSI_NOP_IN_MSG_INDEX);
if (task)
__iscsi_put_task(task);
spin_unlock(&session->back_lock);
}
/**
* bnx2i_unsol_pdu_adjust_rq - makes adjustments to RQ after unsol pdu is recvd
* @bnx2i_conn: iscsi connection
*
* Firmware advances RQ producer index for every unsolicited PDU even if
* payload data length is '0'. This function makes corresponding
* adjustments on the driver side to match this f/w behavior
*/
static void bnx2i_unsol_pdu_adjust_rq(struct bnx2i_conn *bnx2i_conn)
{
char dummy_rq_data[2];
bnx2i_get_rq_buf(bnx2i_conn, dummy_rq_data, 1);
bnx2i_put_rq_buf(bnx2i_conn, 1);
}
/**
* bnx2i_process_nopin_mesg - this function handles iscsi nopin CQE
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process iSCSI target's proactive iSCSI NOPIN request
*/
static int bnx2i_process_nopin_mesg(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct iscsi_task *task;
struct bnx2i_nop_in_msg *nop_in;
struct iscsi_nopin *hdr;
int tgt_async_nop = 0;
nop_in = (struct bnx2i_nop_in_msg *)cqe;
spin_lock(&session->back_lock);
hdr = (struct iscsi_nopin *)&bnx2i_conn->gen_pdu.resp_hdr;
memset(hdr, 0, sizeof(struct iscsi_hdr));
hdr->opcode = nop_in->op_code;
hdr->max_cmdsn = cpu_to_be32(nop_in->max_cmd_sn);
hdr->exp_cmdsn = cpu_to_be32(nop_in->exp_cmd_sn);
hdr->ttt = cpu_to_be32(nop_in->ttt);
if (nop_in->itt == (u16) RESERVED_ITT) {
bnx2i_unsol_pdu_adjust_rq(bnx2i_conn);
hdr->itt = RESERVED_ITT;
tgt_async_nop = 1;
goto done;
}
/* this is a response to one of our nop-outs */
task = iscsi_itt_to_task(conn,
(itt_t) (nop_in->itt & ISCSI_NOP_IN_MSG_INDEX));
if (task) {
hdr->flags = ISCSI_FLAG_CMD_FINAL;
hdr->itt = task->hdr->itt;
hdr->ttt = cpu_to_be32(nop_in->ttt);
memcpy(&hdr->lun, nop_in->lun, 8);
}
done:
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
spin_unlock(&session->back_lock);
return tgt_async_nop;
}
/**
* bnx2i_process_async_mesg - this function handles iscsi async message
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process iSCSI ASYNC Message
*/
static void bnx2i_process_async_mesg(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct bnx2i_async_msg *async_cqe;
struct iscsi_async *resp_hdr;
u8 async_event;
bnx2i_unsol_pdu_adjust_rq(bnx2i_conn);
async_cqe = (struct bnx2i_async_msg *)cqe;
async_event = async_cqe->async_event;
if (async_event == ISCSI_ASYNC_MSG_SCSI_EVENT) {
iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data,
"async: scsi events not supported\n");
return;
}
spin_lock(&session->back_lock);
resp_hdr = (struct iscsi_async *) &bnx2i_conn->gen_pdu.resp_hdr;
memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
resp_hdr->opcode = async_cqe->op_code;
resp_hdr->flags = 0x80;
memcpy(&resp_hdr->lun, async_cqe->lun, 8);
resp_hdr->exp_cmdsn = cpu_to_be32(async_cqe->exp_cmd_sn);
resp_hdr->max_cmdsn = cpu_to_be32(async_cqe->max_cmd_sn);
resp_hdr->async_event = async_cqe->async_event;
resp_hdr->async_vcode = async_cqe->async_vcode;
resp_hdr->param1 = cpu_to_be16(async_cqe->param1);
resp_hdr->param2 = cpu_to_be16(async_cqe->param2);
resp_hdr->param3 = cpu_to_be16(async_cqe->param3);
__iscsi_complete_pdu(bnx2i_conn->cls_conn->dd_data,
(struct iscsi_hdr *)resp_hdr, NULL, 0);
spin_unlock(&session->back_lock);
}
/**
* bnx2i_process_reject_mesg - process iscsi reject pdu
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process iSCSI REJECT message
*/
static void bnx2i_process_reject_mesg(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct bnx2i_reject_msg *reject;
struct iscsi_reject *hdr;
reject = (struct bnx2i_reject_msg *) cqe;
if (reject->data_length) {
bnx2i_get_rq_buf(bnx2i_conn, conn->data, reject->data_length);
bnx2i_put_rq_buf(bnx2i_conn, 1);
} else
bnx2i_unsol_pdu_adjust_rq(bnx2i_conn);
spin_lock(&session->back_lock);
hdr = (struct iscsi_reject *) &bnx2i_conn->gen_pdu.resp_hdr;
memset(hdr, 0, sizeof(struct iscsi_hdr));
hdr->opcode = reject->op_code;
hdr->reason = reject->reason;
hton24(hdr->dlength, reject->data_length);
hdr->max_cmdsn = cpu_to_be32(reject->max_cmd_sn);
hdr->exp_cmdsn = cpu_to_be32(reject->exp_cmd_sn);
hdr->ffffffff = cpu_to_be32(RESERVED_ITT);
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, conn->data,
reject->data_length);
spin_unlock(&session->back_lock);
}
/**
* bnx2i_process_cmd_cleanup_resp - process scsi command clean-up completion
* @session: iscsi session pointer
* @bnx2i_conn: iscsi connection pointer
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* process command cleanup response CQE during conn shutdown or error recovery
*/
static void bnx2i_process_cmd_cleanup_resp(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct cqe *cqe)
{
struct bnx2i_cleanup_response *cmd_clean_rsp;
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct iscsi_task *task;
cmd_clean_rsp = (struct bnx2i_cleanup_response *)cqe;
spin_lock(&session->back_lock);
task = iscsi_itt_to_task(conn,
cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX);
if (!task)
printk(KERN_ALERT "bnx2i: cmd clean ITT %x not active\n",
cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX);
spin_unlock(&session->back_lock);
complete(&bnx2i_conn->cmd_cleanup_cmpl);
}
/**
* bnx2i_percpu_io_thread - thread per cpu for ios
*
* @arg: ptr to bnx2i_percpu_info structure
*/
int bnx2i_percpu_io_thread(void *arg)
{
struct bnx2i_percpu_s *p = arg;
struct bnx2i_work *work, *tmp;
LIST_HEAD(work_list);
set_user_nice(current, MIN_NICE);
while (!kthread_should_stop()) {
spin_lock_bh(&p->p_work_lock);
while (!list_empty(&p->work_list)) {
list_splice_init(&p->work_list, &work_list);
spin_unlock_bh(&p->p_work_lock);
list_for_each_entry_safe(work, tmp, &work_list, list) {
list_del_init(&work->list);
/* work allocated in the bh, freed here */
bnx2i_process_scsi_cmd_resp(work->session,
work->bnx2i_conn,
&work->cqe);
atomic_dec(&work->bnx2i_conn->work_cnt);
kfree(work);
}
spin_lock_bh(&p->p_work_lock);
}
set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_bh(&p->p_work_lock);
schedule();
}
__set_current_state(TASK_RUNNING);
return 0;
}
/**
* bnx2i_queue_scsi_cmd_resp - queue cmd completion to the percpu thread
* @session: iscsi session
* @bnx2i_conn: bnx2i connection
* @cqe: pointer to newly DMA'ed CQE entry for processing
*
* this function is called by generic KCQ handler to queue all pending cmd
* completion CQEs
*
* The implementation is to queue the cmd response based on the
* last recorded command for the given connection. The
* cpu_id gets recorded upon task_xmit. No out-of-order completion!
*/
static int bnx2i_queue_scsi_cmd_resp(struct iscsi_session *session,
struct bnx2i_conn *bnx2i_conn,
struct bnx2i_nop_in_msg *cqe)
{
struct bnx2i_work *bnx2i_work = NULL;
struct bnx2i_percpu_s *p = NULL;
struct iscsi_task *task;
struct scsi_cmnd *sc;
int rc = 0;
spin_lock(&session->back_lock);
task = iscsi_itt_to_task(bnx2i_conn->cls_conn->dd_data,
cqe->itt & ISCSI_CMD_RESPONSE_INDEX);
if (!task || !task->sc) {
spin_unlock(&session->back_lock);
return -EINVAL;
}
sc = task->sc;
spin_unlock(&session->back_lock);
p = &per_cpu(bnx2i_percpu, blk_mq_rq_cpu(scsi_cmd_to_rq(sc)));
spin_lock(&p->p_work_lock);
if (unlikely(!p->iothread)) {
rc = -EINVAL;
goto err;
}
/* Alloc and copy to the cqe */
bnx2i_work = kzalloc(sizeof(struct bnx2i_work), GFP_ATOMIC);
if (bnx2i_work) {
INIT_LIST_HEAD(&bnx2i_work->list);
bnx2i_work->session = session;
bnx2i_work->bnx2i_conn = bnx2i_conn;
memcpy(&bnx2i_work->cqe, cqe, sizeof(struct cqe));
list_add_tail(&bnx2i_work->list, &p->work_list);
atomic_inc(&bnx2i_conn->work_cnt);
wake_up_process(p->iothread);
spin_unlock(&p->p_work_lock);
goto done;
} else
rc = -ENOMEM;
err:
spin_unlock(&p->p_work_lock);
bnx2i_process_scsi_cmd_resp(session, bnx2i_conn, (struct cqe *)cqe);
done:
return rc;
}
/**
* bnx2i_process_new_cqes - process newly DMA'ed CQE's
* @bnx2i_conn: bnx2i connection
*
* this function is called by generic KCQ handler to process all pending CQE's
*/
static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn)
{
struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
struct iscsi_session *session = conn->session;
struct bnx2i_hba *hba = bnx2i_conn->hba;
struct qp_info *qp;
struct bnx2i_nop_in_msg *nopin;
int tgt_async_msg;
int cqe_cnt = 0;
if (bnx2i_conn->ep == NULL)
return 0;
qp = &bnx2i_conn->ep->qp;
if (!qp->cq_virt) {
printk(KERN_ALERT "bnx2i (%s): cq resr freed in bh execution!",
hba->netdev->name);
goto out;
}
while (1) {
nopin = (struct bnx2i_nop_in_msg *) qp->cq_cons_qe;
if (nopin->cq_req_sn != qp->cqe_exp_seq_sn)
break;
if (unlikely(test_bit(ISCSI_CONN_FLAG_SUSPEND_RX, &conn->flags))) {
if (nopin->op_code == ISCSI_OP_NOOP_IN &&
nopin->itt == (u16) RESERVED_ITT) {
printk(KERN_ALERT "bnx2i: Unsolicited "
"NOP-In detected for suspended "
"connection dev=%s!\n",
hba->netdev->name);
bnx2i_unsol_pdu_adjust_rq(bnx2i_conn);
goto cqe_out;
}
break;
}
tgt_async_msg = 0;
switch (nopin->op_code) {
case ISCSI_OP_SCSI_CMD_RSP:
case ISCSI_OP_SCSI_DATA_IN:
/* Run the kthread engine only for data cmds
All other cmds will be completed in this bh! */
bnx2i_queue_scsi_cmd_resp(session, bnx2i_conn, nopin);
goto done;
case ISCSI_OP_LOGIN_RSP:
bnx2i_process_login_resp(session, bnx2i_conn,
qp->cq_cons_qe);
break;
case ISCSI_OP_SCSI_TMFUNC_RSP:
bnx2i_process_tmf_resp(session, bnx2i_conn,
qp->cq_cons_qe);
break;
case ISCSI_OP_TEXT_RSP:
bnx2i_process_text_resp(session, bnx2i_conn,
qp->cq_cons_qe);
break;
case ISCSI_OP_LOGOUT_RSP:
bnx2i_process_logout_resp(session, bnx2i_conn,
qp->cq_cons_qe);
break;
case ISCSI_OP_NOOP_IN:
if (bnx2i_process_nopin_mesg(session, bnx2i_conn,
qp->cq_cons_qe))
tgt_async_msg = 1;
break;
case ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION:
bnx2i_process_nopin_local_cmpl(session, bnx2i_conn,
qp->cq_cons_qe);
break;
case ISCSI_OP_ASYNC_EVENT:
bnx2i_process_async_mesg(session, bnx2i_conn,
qp->cq_cons_qe);
tgt_async_msg = 1;
break;
case ISCSI_OP_REJECT:
bnx2i_process_reject_mesg(session, bnx2i_conn,
qp->cq_cons_qe);
break;
case ISCSI_OPCODE_CLEANUP_RESPONSE:
bnx2i_process_cmd_cleanup_resp(session, bnx2i_conn,
qp->cq_cons_qe);
break;
default:
printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n",
nopin->op_code);
}
ADD_STATS_64(hba, rx_pdus, 1);
ADD_STATS_64(hba, rx_bytes, nopin->data_length);
done:
if (!tgt_async_msg) {
if (!atomic_read(&bnx2i_conn->ep->num_active_cmds))
printk(KERN_ALERT "bnx2i (%s): no active cmd! "
"op 0x%x\n",
hba->netdev->name,
nopin->op_code);
else
atomic_dec(&bnx2i_conn->ep->num_active_cmds);
}
cqe_out:
/* clear out in production version only, till beta keep opcode
* field intact, will be helpful in debugging (context dump)
* nopin->op_code = 0;
*/
cqe_cnt++;
qp->cqe_exp_seq_sn++;
if (qp->cqe_exp_seq_sn == (qp->cqe_size * 2 + 1))
qp->cqe_exp_seq_sn = ISCSI_INITIAL_SN;
if (qp->cq_cons_qe == qp->cq_last_qe) {
qp->cq_cons_qe = qp->cq_first_qe;
qp->cq_cons_idx = 0;
} else {
qp->cq_cons_qe++;
qp->cq_cons_idx++;
}
}
out:
return cqe_cnt;
}
/**
* bnx2i_fastpath_notification - process global event queue (KCQ)
* @hba: adapter structure pointer
* @new_cqe_kcqe: pointer to newly DMA'ed KCQE entry
*
* Fast path event notification handler, KCQ entry carries context id
* of the connection that has 1 or more pending CQ entries
*/
static void bnx2i_fastpath_notification(struct bnx2i_hba *hba,
struct iscsi_kcqe *new_cqe_kcqe)
{
struct bnx2i_conn *bnx2i_conn;
u32 iscsi_cid;
int nxt_idx;
iscsi_cid = new_cqe_kcqe->iscsi_conn_id;
bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid);
if (!bnx2i_conn) {
printk(KERN_ALERT "cid #%x not valid\n", iscsi_cid);
return;
}
if (!bnx2i_conn->ep) {
printk(KERN_ALERT "cid #%x - ep not bound\n", iscsi_cid);
return;
}
bnx2i_process_new_cqes(bnx2i_conn);
nxt_idx = bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep,
CNIC_ARM_CQE_FP);
if (nxt_idx && nxt_idx == bnx2i_process_new_cqes(bnx2i_conn))
bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, CNIC_ARM_CQE_FP);
}
/**
* bnx2i_process_update_conn_cmpl - process iscsi conn update completion KCQE
* @hba: adapter structure pointer
* @update_kcqe: kcqe pointer
*
* CONN_UPDATE completion handler, this completes iSCSI connection FFP migration
*/
static void bnx2i_process_update_conn_cmpl(struct bnx2i_hba *hba,
struct iscsi_kcqe *update_kcqe)
{
struct bnx2i_conn *conn;
u32 iscsi_cid;
iscsi_cid = update_kcqe->iscsi_conn_id;
conn = bnx2i_get_conn_from_id(hba, iscsi_cid);
if (!conn) {
printk(KERN_ALERT "conn_update: cid %x not valid\n", iscsi_cid);
return;
}
if (!conn->ep) {
printk(KERN_ALERT "cid %x does not have ep bound\n", iscsi_cid);
return;
}
if (update_kcqe->completion_status) {
printk(KERN_ALERT "request failed cid %x\n", iscsi_cid);
conn->ep->state = EP_STATE_ULP_UPDATE_FAILED;
} else
conn->ep->state = EP_STATE_ULP_UPDATE_COMPL;
wake_up_interruptible(&conn->ep->ofld_wait);
}
/**
* bnx2i_recovery_que_add_conn - add connection to recovery queue
* @hba: adapter structure pointer
* @bnx2i_conn: iscsi connection
*
* Add connection to recovery queue and schedule adapter eh worker
*/
static void bnx2i_recovery_que_add_conn(struct bnx2i_hba *hba,
struct bnx2i_conn *bnx2i_conn)
{
iscsi_conn_failure(bnx2i_conn->cls_conn->dd_data,
ISCSI_ERR_CONN_FAILED);
}
/**
* bnx2i_process_tcp_error - process error notification on a given connection
*
* @hba: adapter structure pointer
* @tcp_err: tcp error kcqe pointer
*
* handles tcp level error notifications from FW.
*/
static void bnx2i_process_tcp_error(struct bnx2i_hba *hba,
struct iscsi_kcqe *tcp_err)
{
struct bnx2i_conn *bnx2i_conn;
u32 iscsi_cid;
iscsi_cid = tcp_err->iscsi_conn_id;
bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid);
if (!bnx2i_conn) {
printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid);
return;
}
printk(KERN_ALERT "bnx2i - cid 0x%x had TCP errors, error code 0x%x\n",
iscsi_cid, tcp_err->completion_status);
bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn);
}
/**
* bnx2i_process_iscsi_error - process error notification on a given connection
* @hba: adapter structure pointer
* @iscsi_err: iscsi error kcqe pointer
*
* handles iscsi error notifications from the FW. Firmware based in initial
* handshake classifies iscsi protocol / TCP rfc violation into either
* warning or error indications. If indication is of "Error" type, driver
* will initiate session recovery for that connection/session. For
* "Warning" type indication, driver will put out a system log message
* (there will be only one message for each type for the life of the
* session, this is to avoid un-necessarily overloading the system)
*/
static void bnx2i_process_iscsi_error(struct bnx2i_hba *hba,
struct iscsi_kcqe *iscsi_err)
{
struct bnx2i_conn *bnx2i_conn;
u32 iscsi_cid;
const char *additional_notice = "";
const char *message;
int need_recovery;
u64 err_mask64;
iscsi_cid = iscsi_err->iscsi_conn_id;
bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid);
if (!bnx2i_conn) {
printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid);
return;
}
err_mask64 = (0x1ULL << iscsi_err->completion_status);
if (err_mask64 & iscsi_error_mask) {
need_recovery = 0;
message = "iscsi_warning";
} else {
need_recovery = 1;
message = "iscsi_error";
}
switch (iscsi_err->completion_status) {
case ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR:
additional_notice = "hdr digest err";
break;
case ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR:
additional_notice = "data digest err";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE:
additional_notice = "wrong opcode rcvd";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN:
additional_notice = "AHS len > 0 rcvd";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT:
additional_notice = "invalid ITT rcvd";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN:
additional_notice = "wrong StatSN rcvd";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN:
additional_notice = "wrong DataSN rcvd";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T:
additional_notice = "pend R2T violation";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0:
additional_notice = "ERL0, UO";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1:
additional_notice = "ERL0, U1";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2:
additional_notice = "ERL0, U2";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3:
additional_notice = "ERL0, U3";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4:
additional_notice = "ERL0, U4";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5:
additional_notice = "ERL0, U5";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6:
additional_notice = "ERL0, U6";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN:
additional_notice = "invalid resi len";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN:
additional_notice = "MRDSL violation";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO:
additional_notice = "F-bit not set";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV:
additional_notice = "invalid TTT";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN:
additional_notice = "invalid DataSN";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN:
additional_notice = "burst len violation";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF:
additional_notice = "buf offset violation";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN:
additional_notice = "invalid LUN field";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN:
additional_notice = "invalid R2TSN field";
break;
#define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0 \
ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0
case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0:
additional_notice = "invalid cmd len1";
break;
#define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1 \
ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1
case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1:
additional_notice = "invalid cmd len2";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED:
additional_notice = "pend r2t exceeds MaxOutstandingR2T value";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV:
additional_notice = "TTT is rsvd";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN:
additional_notice = "MBL violation";
break;
#define BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO \
ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO
case BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO:
additional_notice = "data seg len != 0";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN:
additional_notice = "reject pdu len error";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ASYNC_PDU_LEN:
additional_notice = "async pdu len error";
break;
case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_NOPIN_PDU_LEN:
additional_notice = "nopin pdu len error";
break;
#define BNX2_ERR_PEND_R2T_IN_CLEANUP \
ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_IN_CLEANUP
case BNX2_ERR_PEND_R2T_IN_CLEANUP:
additional_notice = "pend r2t in cleanup";
break;
case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT:
additional_notice = "IP fragments rcvd";
break;
case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS:
additional_notice = "IP options error";
break;
case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG:
additional_notice = "urgent flag error";
break;
default:
printk(KERN_ALERT "iscsi_err - unknown err %x\n",
iscsi_err->completion_status);
}
if (need_recovery) {
iscsi_conn_printk(KERN_ALERT,
bnx2i_conn->cls_conn->dd_data,
"bnx2i: %s - %s\n",
message, additional_notice);
iscsi_conn_printk(KERN_ALERT,
bnx2i_conn->cls_conn->dd_data,
"conn_err - hostno %d conn %p, "
"iscsi_cid %x cid %x\n",
bnx2i_conn->hba->shost->host_no,
bnx2i_conn, bnx2i_conn->ep->ep_iscsi_cid,
bnx2i_conn->ep->ep_cid);
bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn);
} else
if (!test_and_set_bit(iscsi_err->completion_status,
(void *) &bnx2i_conn->violation_notified))
iscsi_conn_printk(KERN_ALERT,
bnx2i_conn->cls_conn->dd_data,
"bnx2i: %s - %s\n",
message, additional_notice);
}
/**
* bnx2i_process_conn_destroy_cmpl - process iscsi conn destroy completion
* @hba: adapter structure pointer
* @conn_destroy: conn destroy kcqe pointer
*
* handles connection destroy completion request.
*/
static void bnx2i_process_conn_destroy_cmpl(struct bnx2i_hba *hba,
struct iscsi_kcqe *conn_destroy)
{
struct bnx2i_endpoint *ep;
ep = bnx2i_find_ep_in_destroy_list(hba, conn_destroy->iscsi_conn_id);
if (!ep) {
printk(KERN_ALERT "bnx2i_conn_destroy_cmpl: no pending "
"offload request, unexpected completion\n");
return;
}
if (hba != ep->hba) {
printk(KERN_ALERT "conn destroy- error hba mismatch\n");
return;
}
if (conn_destroy->completion_status) {
printk(KERN_ALERT "conn_destroy_cmpl: op failed\n");
ep->state = EP_STATE_CLEANUP_FAILED;
} else
ep->state = EP_STATE_CLEANUP_CMPL;
wake_up_interruptible(&ep->ofld_wait);
}
/**
* bnx2i_process_ofld_cmpl - process initial iscsi conn offload completion
* @hba: adapter structure pointer
* @ofld_kcqe: conn offload kcqe pointer
*
* handles initial connection offload completion, ep_connect() thread is
* woken-up to continue with LLP connect process
*/
static void bnx2i_process_ofld_cmpl(struct bnx2i_hba *hba,
struct iscsi_kcqe *ofld_kcqe)
{
u32 cid_addr;
struct bnx2i_endpoint *ep;
ep = bnx2i_find_ep_in_ofld_list(hba, ofld_kcqe->iscsi_conn_id);
if (!ep) {
printk(KERN_ALERT "ofld_cmpl: no pend offload request\n");
return;
}
if (hba != ep->hba) {
printk(KERN_ALERT "ofld_cmpl: error hba mismatch\n");
return;
}
if (ofld_kcqe->completion_status) {
ep->state = EP_STATE_OFLD_FAILED;
if (ofld_kcqe->completion_status ==
ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE)
printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - unable "
"to allocate iSCSI context resources\n",
hba->netdev->name);
else if (ofld_kcqe->completion_status ==
ISCSI_KCQE_COMPLETION_STATUS_INVALID_OPCODE)
printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - invalid "
"opcode\n", hba->netdev->name);
else if (ofld_kcqe->completion_status ==
ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY)
/* error status code valid only for 5771x chipset */
ep->state = EP_STATE_OFLD_FAILED_CID_BUSY;
else
printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - invalid "
"error code %d\n", hba->netdev->name,
ofld_kcqe->completion_status);
} else {
ep->state = EP_STATE_OFLD_COMPL;
cid_addr = ofld_kcqe->iscsi_conn_context_id;
ep->ep_cid = cid_addr;
ep->qp.ctx_base = NULL;
}
wake_up_interruptible(&ep->ofld_wait);
}
/**
* bnx2i_indicate_kcqe - process iscsi conn update completion KCQE
* @context: adapter structure pointer
* @kcqe: kcqe pointer
* @num_cqe: number of kcqes to process
*
* Generic KCQ event handler/dispatcher
*/
static void bnx2i_indicate_kcqe(void *context, struct kcqe *kcqe[],
u32 num_cqe)
{
struct bnx2i_hba *hba = context;
int i = 0;
struct iscsi_kcqe *ikcqe = NULL;
while (i < num_cqe) {
ikcqe = (struct iscsi_kcqe *) kcqe[i++];
if (ikcqe->op_code ==
ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION)
bnx2i_fastpath_notification(hba, ikcqe);
else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_OFFLOAD_CONN)
bnx2i_process_ofld_cmpl(hba, ikcqe);
else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_UPDATE_CONN)
bnx2i_process_update_conn_cmpl(hba, ikcqe);
else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_INIT) {
if (ikcqe->completion_status !=
ISCSI_KCQE_COMPLETION_STATUS_SUCCESS)
bnx2i_iscsi_license_error(hba, ikcqe->\
completion_status);
else {
set_bit(ADAPTER_STATE_UP, &hba->adapter_state);
bnx2i_get_link_state(hba);
printk(KERN_INFO "bnx2i [%.2x:%.2x.%.2x]: "
"ISCSI_INIT passed\n",
(u8)hba->pcidev->bus->number,
hba->pci_devno,
(u8)hba->pci_func);
}
} else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_DESTROY_CONN)
bnx2i_process_conn_destroy_cmpl(hba, ikcqe);
else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_ISCSI_ERROR)
bnx2i_process_iscsi_error(hba, ikcqe);
else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_TCP_ERROR)
bnx2i_process_tcp_error(hba, ikcqe);
else
printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n",
ikcqe->op_code);
}
}
/**
* bnx2i_indicate_netevent - Generic netdev event handler
* @context: adapter structure pointer
* @event: event type
* @vlan_id: vlans id - associated vlan id with this event
*
* Handles four netdev events, NETDEV_UP, NETDEV_DOWN,
* NETDEV_GOING_DOWN and NETDEV_CHANGE
*/
static void bnx2i_indicate_netevent(void *context, unsigned long event,
u16 vlan_id)
{
struct bnx2i_hba *hba = context;
/* Ignore all netevent coming from vlans */
if (vlan_id != 0)
return;
switch (event) {
case NETDEV_UP:
if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
bnx2i_send_fw_iscsi_init_msg(hba);
break;
case NETDEV_DOWN:
clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
break;
case NETDEV_GOING_DOWN:
set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
iscsi_host_for_each_session(hba->shost,
bnx2i_drop_session);
break;
case NETDEV_CHANGE:
bnx2i_get_link_state(hba);
break;
default:
;
}
}
/**
* bnx2i_cm_connect_cmpl - process iscsi conn establishment completion
* @cm_sk: cnic sock structure pointer
*
* function callback exported via bnx2i - cnic driver interface to
* indicate completion of option-2 TCP connect request.
*/
static void bnx2i_cm_connect_cmpl(struct cnic_sock *cm_sk)
{
struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context;
if (test_bit(ADAPTER_STATE_GOING_DOWN, &ep->hba->adapter_state))
ep->state = EP_STATE_CONNECT_FAILED;
else if (test_bit(SK_F_OFFLD_COMPLETE, &cm_sk->flags))
ep->state = EP_STATE_CONNECT_COMPL;
else
ep->state = EP_STATE_CONNECT_FAILED;
wake_up_interruptible(&ep->ofld_wait);
}
/**
* bnx2i_cm_close_cmpl - process tcp conn close completion
* @cm_sk: cnic sock structure pointer
*
* function callback exported via bnx2i - cnic driver interface to
* indicate completion of option-2 graceful TCP connect shutdown
*/
static void bnx2i_cm_close_cmpl(struct cnic_sock *cm_sk)
{
struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context;
ep->state = EP_STATE_DISCONN_COMPL;
wake_up_interruptible(&ep->ofld_wait);
}
/**
* bnx2i_cm_abort_cmpl - process abortive tcp conn teardown completion
* @cm_sk: cnic sock structure pointer
*
* function callback exported via bnx2i - cnic driver interface to
* indicate completion of option-2 abortive TCP connect termination
*/
static void bnx2i_cm_abort_cmpl(struct cnic_sock *cm_sk)
{
struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context;
ep->state = EP_STATE_DISCONN_COMPL;
wake_up_interruptible(&ep->ofld_wait);
}
/**
* bnx2i_cm_remote_close - process received TCP FIN
* @cm_sk: cnic sock structure pointer
*
* function callback exported via bnx2i - cnic driver interface to indicate
* async TCP events such as FIN
*/
static void bnx2i_cm_remote_close(struct cnic_sock *cm_sk)
{
struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context;
ep->state = EP_STATE_TCP_FIN_RCVD;
if (ep->conn)
bnx2i_recovery_que_add_conn(ep->hba, ep->conn);
}
/**
* bnx2i_cm_remote_abort - process TCP RST and start conn cleanup
* @cm_sk: cnic sock structure pointer
*
* function callback exported via bnx2i - cnic driver interface to
* indicate async TCP events (RST) sent by the peer.
*/
static void bnx2i_cm_remote_abort(struct cnic_sock *cm_sk)
{
struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context;
u32 old_state = ep->state;
ep->state = EP_STATE_TCP_RST_RCVD;
if (old_state == EP_STATE_DISCONN_START)
wake_up_interruptible(&ep->ofld_wait);
else
if (ep->conn)
bnx2i_recovery_que_add_conn(ep->hba, ep->conn);
}
static int bnx2i_send_nl_mesg(void *context, u32 msg_type,
char *buf, u16 buflen)
{
struct bnx2i_hba *hba = context;
int rc;
if (!hba)
return -ENODEV;
rc = iscsi_offload_mesg(hba->shost, &bnx2i_iscsi_transport,
msg_type, buf, buflen);
if (rc)
printk(KERN_ALERT "bnx2i: private nl message send error\n");
return rc;
}
/*
* bnx2i_cnic_cb - global template of bnx2i - cnic driver interface structure
* carrying callback function pointers
*/
struct cnic_ulp_ops bnx2i_cnic_cb = {
.cnic_init = bnx2i_ulp_init,
.cnic_exit = bnx2i_ulp_exit,
.cnic_start = bnx2i_start,
.cnic_stop = bnx2i_stop,
.indicate_kcqes = bnx2i_indicate_kcqe,
.indicate_netevent = bnx2i_indicate_netevent,
.cm_connect_complete = bnx2i_cm_connect_cmpl,
.cm_close_complete = bnx2i_cm_close_cmpl,
.cm_abort_complete = bnx2i_cm_abort_cmpl,
.cm_remote_close = bnx2i_cm_remote_close,
.cm_remote_abort = bnx2i_cm_remote_abort,
.iscsi_nl_send_msg = bnx2i_send_nl_mesg,
.cnic_get_stats = bnx2i_get_stats,
.owner = THIS_MODULE
};
/**
* bnx2i_map_ep_dbell_regs - map connection doorbell registers
* @ep: bnx2i endpoint
*
* maps connection's SQ and RQ doorbell registers, 5706/5708/5709 hosts these
* register in BAR #0. Whereas in 57710 these register are accessed by
* mapping BAR #1
*/
int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep)
{
u32 cid_num;
u32 reg_off;
u32 first_l4l5;
u32 ctx_sz;
u32 config2;
resource_size_t reg_base;
cid_num = bnx2i_get_cid_num(ep);
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) {
reg_base = pci_resource_start(ep->hba->pcidev,
BNX2X_DOORBELL_PCI_BAR);
reg_off = (1 << BNX2X_DB_SHIFT) * (cid_num & 0x1FFFF);
ep->qp.ctx_base = ioremap(reg_base + reg_off, 4);
if (!ep->qp.ctx_base)
return -ENOMEM;
goto arm_cq;
}
if ((test_bit(BNX2I_NX2_DEV_5709, &ep->hba->cnic_dev_type)) &&
(ep->hba->mail_queue_access == BNX2I_MQ_BIN_MODE)) {
config2 = REG_RD(ep->hba, BNX2_MQ_CONFIG2);
first_l4l5 = config2 & BNX2_MQ_CONFIG2_FIRST_L4L5;
ctx_sz = (config2 & BNX2_MQ_CONFIG2_CONT_SZ) >> 3;
if (ctx_sz)
reg_off = CTX_OFFSET + MAX_CID_CNT * MB_KERNEL_CTX_SIZE
+ BNX2I_570X_PAGE_SIZE_DEFAULT *
(((cid_num - first_l4l5) / ctx_sz) + 256);
else
reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num);
} else
/* 5709 device in normal node and 5706/5708 devices */
reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num);
ep->qp.ctx_base = ioremap(ep->hba->reg_base + reg_off,
MB_KERNEL_CTX_SIZE);
if (!ep->qp.ctx_base)
return -ENOMEM;
arm_cq:
bnx2i_arm_cq_event_coalescing(ep, CNIC_ARM_CQE);
return 0;
}
|
linux-master
|
drivers/scsi/bnx2i/bnx2i_hwi.c
|
/* bnx2i_sysfs.c: QLogic NetXtreme II iSCSI driver.
*
* Copyright (c) 2004 - 2013 Broadcom Corporation
* Copyright (c) 2014, QLogic Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Anil Veerabhadrappa ([email protected])
* Previously Maintained by: Eddie Wai ([email protected])
* Maintained by: [email protected]
*/
#include "bnx2i.h"
/**
* bnx2i_dev_to_hba - maps dev pointer to adapter struct
* @dev: device pointer
*
* Map device to hba structure
*/
static inline struct bnx2i_hba *bnx2i_dev_to_hba(struct device *dev)
{
struct Scsi_Host *shost = class_to_shost(dev);
return iscsi_host_priv(shost);
}
/**
* bnx2i_show_sq_info - return(s currently configured send queue (SQ) size
* @dev: device pointer
* @attr: device attribute (unused)
* @buf: buffer to return current SQ size parameter
*
* Returns current SQ size parameter, this paramater determines the number
* outstanding iSCSI commands supported on a connection
*/
static ssize_t bnx2i_show_sq_info(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct bnx2i_hba *hba = bnx2i_dev_to_hba(dev);
return sprintf(buf, "0x%x\n", hba->max_sqes);
}
/**
* bnx2i_set_sq_info - update send queue (SQ) size parameter
* @dev: device pointer
* @attr: device attribute (unused)
* @buf: buffer to return current SQ size parameter
* @count: parameter buffer size
*
* Interface for user to change shared queue size allocated for each conn
* Must be within SQ limits and a power of 2. For the latter this is needed
* because of how libiscsi preallocates tasks.
*/
static ssize_t bnx2i_set_sq_info(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct bnx2i_hba *hba = bnx2i_dev_to_hba(dev);
u32 val;
int max_sq_size;
if (hba->ofld_conns_active)
goto skip_config;
if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type))
max_sq_size = BNX2I_5770X_SQ_WQES_MAX;
else
max_sq_size = BNX2I_570X_SQ_WQES_MAX;
if (sscanf(buf, " 0x%x ", &val) > 0) {
if ((val >= BNX2I_SQ_WQES_MIN) && (val <= max_sq_size) &&
(is_power_of_2(val)))
hba->max_sqes = val;
}
return count;
skip_config:
printk(KERN_ERR "bnx2i: device busy, cannot change SQ size\n");
return 0;
}
/**
* bnx2i_show_ccell_info - returns command cell (HQ) size
* @dev: device pointer
* @attr: device attribute (unused)
* @buf: buffer to return current SQ size parameter
*
* returns per-connection TCP history queue size parameter
*/
static ssize_t bnx2i_show_ccell_info(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct bnx2i_hba *hba = bnx2i_dev_to_hba(dev);
return sprintf(buf, "0x%x\n", hba->num_ccell);
}
/**
* bnx2i_set_ccell_info - set command cell (HQ) size
* @dev: device pointer
* @attr: device attribute (unused)
* @buf: buffer to return current SQ size parameter
* @count: parameter buffer size
*
* updates per-connection TCP history queue size parameter
*/
static ssize_t bnx2i_set_ccell_info(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
u32 val;
struct bnx2i_hba *hba = bnx2i_dev_to_hba(dev);
if (hba->ofld_conns_active)
goto skip_config;
if (sscanf(buf, " 0x%x ", &val) > 0) {
if ((val >= BNX2I_CCELLS_MIN) &&
(val <= BNX2I_CCELLS_MAX)) {
hba->num_ccell = val;
}
}
return count;
skip_config:
printk(KERN_ERR "bnx2i: device busy, cannot change CCELL size\n");
return 0;
}
static DEVICE_ATTR(sq_size, S_IRUGO | S_IWUSR,
bnx2i_show_sq_info, bnx2i_set_sq_info);
static DEVICE_ATTR(num_ccell, S_IRUGO | S_IWUSR,
bnx2i_show_ccell_info, bnx2i_set_ccell_info);
static struct attribute *bnx2i_dev_attributes[] = {
&dev_attr_sq_size.attr,
&dev_attr_num_ccell.attr,
NULL
};
static const struct attribute_group bnx2i_dev_attr_group = {
.attrs = bnx2i_dev_attributes
};
const struct attribute_group *bnx2i_dev_groups[] = {
&bnx2i_dev_attr_group,
NULL
};
|
linux-master
|
drivers/scsi/bnx2i/bnx2i_sysfs.c
|
/*
* bnx2i_iscsi.c: QLogic NetXtreme II iSCSI driver.
*
* Copyright (c) 2006 - 2013 Broadcom Corporation
* Copyright (c) 2007, 2008 Red Hat, Inc. All rights reserved.
* Copyright (c) 2007, 2008 Mike Christie
* Copyright (c) 2014, QLogic Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Anil Veerabhadrappa ([email protected])
* Previously Maintained by: Eddie Wai ([email protected])
* Maintained by: [email protected]
*/
#include <linux/slab.h>
#include <scsi/scsi_tcq.h>
#include <scsi/libiscsi.h>
#include "bnx2i.h"
struct scsi_transport_template *bnx2i_scsi_xport_template;
struct iscsi_transport bnx2i_iscsi_transport;
static const struct scsi_host_template bnx2i_host_template;
/*
* Global endpoint resource info
*/
static DEFINE_SPINLOCK(bnx2i_resc_lock); /* protects global resources */
DECLARE_PER_CPU(struct bnx2i_percpu_s, bnx2i_percpu);
static int bnx2i_adapter_ready(struct bnx2i_hba *hba)
{
int retval = 0;
if (!hba || !test_bit(ADAPTER_STATE_UP, &hba->adapter_state) ||
test_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state) ||
test_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state))
retval = -EPERM;
return retval;
}
/**
* bnx2i_get_write_cmd_bd_idx - identifies various BD bookmarks
* @cmd: iscsi cmd struct pointer
* @buf_off: absolute buffer offset
* @start_bd_off: u32 pointer to return the offset within the BD
* indicated by 'start_bd_idx' on which 'buf_off' falls
* @start_bd_idx: index of the BD on which 'buf_off' falls
*
* identifies & marks various bd info for scsi command's imm data,
* unsolicited data and the first solicited data seq.
*/
static void bnx2i_get_write_cmd_bd_idx(struct bnx2i_cmd *cmd, u32 buf_off,
u32 *start_bd_off, u32 *start_bd_idx)
{
struct iscsi_bd *bd_tbl = cmd->io_tbl.bd_tbl;
u32 cur_offset = 0;
u32 cur_bd_idx = 0;
if (buf_off) {
while (buf_off >= (cur_offset + bd_tbl->buffer_length)) {
cur_offset += bd_tbl->buffer_length;
cur_bd_idx++;
bd_tbl++;
}
}
*start_bd_off = buf_off - cur_offset;
*start_bd_idx = cur_bd_idx;
}
/**
* bnx2i_setup_write_cmd_bd_info - sets up BD various information
* @task: transport layer's cmd struct pointer
*
* identifies & marks various bd info for scsi command's immediate data,
* unsolicited data and first solicited data seq which includes BD start
* index & BD buf off. his function takes into account iscsi parameter such
* as immediate data and unsolicited data is support on this connection.
*/
static void bnx2i_setup_write_cmd_bd_info(struct iscsi_task *task)
{
struct bnx2i_cmd *cmd = task->dd_data;
u32 start_bd_offset;
u32 start_bd_idx;
u32 buffer_offset = 0;
u32 cmd_len = cmd->req.total_data_transfer_length;
/* if ImmediateData is turned off & IntialR2T is turned on,
* there will be no immediate or unsolicited data, just return.
*/
if (!iscsi_task_has_unsol_data(task) && !task->imm_count)
return;
/* Immediate data */
buffer_offset += task->imm_count;
if (task->imm_count == cmd_len)
return;
if (iscsi_task_has_unsol_data(task)) {
bnx2i_get_write_cmd_bd_idx(cmd, buffer_offset,
&start_bd_offset, &start_bd_idx);
cmd->req.ud_buffer_offset = start_bd_offset;
cmd->req.ud_start_bd_index = start_bd_idx;
buffer_offset += task->unsol_r2t.data_length;
}
if (buffer_offset != cmd_len) {
bnx2i_get_write_cmd_bd_idx(cmd, buffer_offset,
&start_bd_offset, &start_bd_idx);
if ((start_bd_offset > task->conn->session->first_burst) ||
(start_bd_idx > scsi_sg_count(cmd->scsi_cmd))) {
int i = 0;
iscsi_conn_printk(KERN_ALERT, task->conn,
"bnx2i- error, buf offset 0x%x "
"bd_valid %d use_sg %d\n",
buffer_offset, cmd->io_tbl.bd_valid,
scsi_sg_count(cmd->scsi_cmd));
for (i = 0; i < cmd->io_tbl.bd_valid; i++)
iscsi_conn_printk(KERN_ALERT, task->conn,
"bnx2i err, bd[%d]: len %x\n",
i, cmd->io_tbl.bd_tbl[i].\
buffer_length);
}
cmd->req.sd_buffer_offset = start_bd_offset;
cmd->req.sd_start_bd_index = start_bd_idx;
}
}
/**
* bnx2i_map_scsi_sg - maps IO buffer and prepares the BD table
* @hba: adapter instance
* @cmd: iscsi cmd struct pointer
*
* map SG list
*/
static int bnx2i_map_scsi_sg(struct bnx2i_hba *hba, struct bnx2i_cmd *cmd)
{
struct scsi_cmnd *sc = cmd->scsi_cmd;
struct iscsi_bd *bd = cmd->io_tbl.bd_tbl;
struct scatterlist *sg;
int byte_count = 0;
int bd_count = 0;
int sg_count;
int sg_len;
u64 addr;
int i;
BUG_ON(scsi_sg_count(sc) > ISCSI_MAX_BDS_PER_CMD);
sg_count = scsi_dma_map(sc);
scsi_for_each_sg(sc, sg, sg_count, i) {
sg_len = sg_dma_len(sg);
addr = (u64) sg_dma_address(sg);
bd[bd_count].buffer_addr_lo = addr & 0xffffffff;
bd[bd_count].buffer_addr_hi = addr >> 32;
bd[bd_count].buffer_length = sg_len;
bd[bd_count].flags = 0;
if (bd_count == 0)
bd[bd_count].flags = ISCSI_BD_FIRST_IN_BD_CHAIN;
byte_count += sg_len;
bd_count++;
}
if (bd_count)
bd[bd_count - 1].flags |= ISCSI_BD_LAST_IN_BD_CHAIN;
BUG_ON(byte_count != scsi_bufflen(sc));
return bd_count;
}
/**
* bnx2i_iscsi_map_sg_list - maps SG list
* @cmd: iscsi cmd struct pointer
*
* creates BD list table for the command
*/
static void bnx2i_iscsi_map_sg_list(struct bnx2i_cmd *cmd)
{
int bd_count;
bd_count = bnx2i_map_scsi_sg(cmd->conn->hba, cmd);
if (!bd_count) {
struct iscsi_bd *bd = cmd->io_tbl.bd_tbl;
bd[0].buffer_addr_lo = bd[0].buffer_addr_hi = 0;
bd[0].buffer_length = bd[0].flags = 0;
}
cmd->io_tbl.bd_valid = bd_count;
}
/**
* bnx2i_iscsi_unmap_sg_list - unmaps SG list
* @cmd: iscsi cmd struct pointer
*
* unmap IO buffers and invalidate the BD table
*/
void bnx2i_iscsi_unmap_sg_list(struct bnx2i_cmd *cmd)
{
struct scsi_cmnd *sc = cmd->scsi_cmd;
if (cmd->io_tbl.bd_valid && sc) {
scsi_dma_unmap(sc);
cmd->io_tbl.bd_valid = 0;
}
}
static void bnx2i_setup_cmd_wqe_template(struct bnx2i_cmd *cmd)
{
memset(&cmd->req, 0x00, sizeof(cmd->req));
cmd->req.op_code = 0xFF;
cmd->req.bd_list_addr_lo = (u32) cmd->io_tbl.bd_tbl_dma;
cmd->req.bd_list_addr_hi =
(u32) ((u64) cmd->io_tbl.bd_tbl_dma >> 32);
}
/**
* bnx2i_bind_conn_to_iscsi_cid - bind conn structure to 'iscsi_cid'
* @hba: pointer to adapter instance
* @bnx2i_conn: pointer to iscsi connection
* @iscsi_cid: iscsi context ID, range 0 - (MAX_CONN - 1)
*
* update iscsi cid table entry with connection pointer. This enables
* driver to quickly get hold of connection structure pointer in
* completion/interrupt thread using iscsi context ID
*/
static int bnx2i_bind_conn_to_iscsi_cid(struct bnx2i_hba *hba,
struct bnx2i_conn *bnx2i_conn,
u32 iscsi_cid)
{
if (hba && hba->cid_que.conn_cid_tbl[iscsi_cid]) {
iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data,
"conn bind - entry #%d not free\n", iscsi_cid);
return -EBUSY;
}
hba->cid_que.conn_cid_tbl[iscsi_cid] = bnx2i_conn;
return 0;
}
/**
* bnx2i_get_conn_from_id - maps an iscsi cid to corresponding conn ptr
* @hba: pointer to adapter instance
* @iscsi_cid: iscsi context ID, range 0 - (MAX_CONN - 1)
*/
struct bnx2i_conn *bnx2i_get_conn_from_id(struct bnx2i_hba *hba,
u16 iscsi_cid)
{
if (!hba->cid_que.conn_cid_tbl) {
printk(KERN_ERR "bnx2i: ERROR - missing conn<->cid table\n");
return NULL;
} else if (iscsi_cid >= hba->max_active_conns) {
printk(KERN_ERR "bnx2i: wrong cid #%d\n", iscsi_cid);
return NULL;
}
return hba->cid_que.conn_cid_tbl[iscsi_cid];
}
/**
* bnx2i_alloc_iscsi_cid - allocates a iscsi_cid from free pool
* @hba: pointer to adapter instance
*/
static u32 bnx2i_alloc_iscsi_cid(struct bnx2i_hba *hba)
{
int idx;
if (!hba->cid_que.cid_free_cnt)
return -1;
idx = hba->cid_que.cid_q_cons_idx;
hba->cid_que.cid_q_cons_idx++;
if (hba->cid_que.cid_q_cons_idx == hba->cid_que.cid_q_max_idx)
hba->cid_que.cid_q_cons_idx = 0;
hba->cid_que.cid_free_cnt--;
return hba->cid_que.cid_que[idx];
}
/**
* bnx2i_free_iscsi_cid - returns tcp port to free list
* @hba: pointer to adapter instance
* @iscsi_cid: iscsi context ID to free
*/
static void bnx2i_free_iscsi_cid(struct bnx2i_hba *hba, u16 iscsi_cid)
{
int idx;
if (iscsi_cid == (u16) -1)
return;
hba->cid_que.cid_free_cnt++;
idx = hba->cid_que.cid_q_prod_idx;
hba->cid_que.cid_que[idx] = iscsi_cid;
hba->cid_que.conn_cid_tbl[iscsi_cid] = NULL;
hba->cid_que.cid_q_prod_idx++;
if (hba->cid_que.cid_q_prod_idx == hba->cid_que.cid_q_max_idx)
hba->cid_que.cid_q_prod_idx = 0;
}
/**
* bnx2i_setup_free_cid_que - sets up free iscsi cid queue
* @hba: pointer to adapter instance
*
* allocates memory for iscsi cid queue & 'cid - conn ptr' mapping table,
* and initialize table attributes
*/
static int bnx2i_setup_free_cid_que(struct bnx2i_hba *hba)
{
int mem_size;
int i;
mem_size = hba->max_active_conns * sizeof(u32);
mem_size = (mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
hba->cid_que.cid_que_base = kmalloc(mem_size, GFP_KERNEL);
if (!hba->cid_que.cid_que_base)
return -ENOMEM;
mem_size = hba->max_active_conns * sizeof(struct bnx2i_conn *);
mem_size = (mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
hba->cid_que.conn_cid_tbl = kmalloc(mem_size, GFP_KERNEL);
if (!hba->cid_que.conn_cid_tbl) {
kfree(hba->cid_que.cid_que_base);
hba->cid_que.cid_que_base = NULL;
return -ENOMEM;
}
hba->cid_que.cid_que = (u32 *)hba->cid_que.cid_que_base;
hba->cid_que.cid_q_prod_idx = 0;
hba->cid_que.cid_q_cons_idx = 0;
hba->cid_que.cid_q_max_idx = hba->max_active_conns;
hba->cid_que.cid_free_cnt = hba->max_active_conns;
for (i = 0; i < hba->max_active_conns; i++) {
hba->cid_que.cid_que[i] = i;
hba->cid_que.conn_cid_tbl[i] = NULL;
}
return 0;
}
/**
* bnx2i_release_free_cid_que - releases 'iscsi_cid' queue resources
* @hba: pointer to adapter instance
*/
static void bnx2i_release_free_cid_que(struct bnx2i_hba *hba)
{
kfree(hba->cid_que.cid_que_base);
hba->cid_que.cid_que_base = NULL;
kfree(hba->cid_que.conn_cid_tbl);
hba->cid_que.conn_cid_tbl = NULL;
}
/**
* bnx2i_alloc_ep - allocates ep structure from global pool
* @hba: pointer to adapter instance
*
* routine allocates a free endpoint structure from global pool and
* a tcp port to be used for this connection. Global resource lock,
* 'bnx2i_resc_lock' is held while accessing shared global data structures
*/
static struct iscsi_endpoint *bnx2i_alloc_ep(struct bnx2i_hba *hba)
{
struct iscsi_endpoint *ep;
struct bnx2i_endpoint *bnx2i_ep;
u32 ec_div;
ep = iscsi_create_endpoint(sizeof(*bnx2i_ep));
if (!ep) {
printk(KERN_ERR "bnx2i: Could not allocate ep\n");
return NULL;
}
bnx2i_ep = ep->dd_data;
bnx2i_ep->cls_ep = ep;
INIT_LIST_HEAD(&bnx2i_ep->link);
bnx2i_ep->state = EP_STATE_IDLE;
bnx2i_ep->ep_iscsi_cid = (u16) -1;
bnx2i_ep->hba = hba;
bnx2i_ep->hba_age = hba->age;
ec_div = event_coal_div;
while (ec_div >>= 1)
bnx2i_ep->ec_shift += 1;
hba->ofld_conns_active++;
init_waitqueue_head(&bnx2i_ep->ofld_wait);
return ep;
}
/**
* bnx2i_free_ep - free endpoint
* @ep: pointer to iscsi endpoint structure
*/
static void bnx2i_free_ep(struct iscsi_endpoint *ep)
{
struct bnx2i_endpoint *bnx2i_ep = ep->dd_data;
unsigned long flags;
spin_lock_irqsave(&bnx2i_resc_lock, flags);
bnx2i_ep->state = EP_STATE_IDLE;
bnx2i_ep->hba->ofld_conns_active--;
if (bnx2i_ep->ep_iscsi_cid != (u16) -1)
bnx2i_free_iscsi_cid(bnx2i_ep->hba, bnx2i_ep->ep_iscsi_cid);
if (bnx2i_ep->conn) {
bnx2i_ep->conn->ep = NULL;
bnx2i_ep->conn = NULL;
}
bnx2i_ep->hba = NULL;
spin_unlock_irqrestore(&bnx2i_resc_lock, flags);
iscsi_destroy_endpoint(ep);
}
/**
* bnx2i_alloc_bdt - allocates buffer descriptor (BD) table for the command
* @hba: adapter instance pointer
* @session: iscsi session pointer
* @cmd: iscsi command structure
*/
static int bnx2i_alloc_bdt(struct bnx2i_hba *hba, struct iscsi_session *session,
struct bnx2i_cmd *cmd)
{
struct io_bdt *io = &cmd->io_tbl;
struct iscsi_bd *bd;
io->bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
ISCSI_MAX_BDS_PER_CMD * sizeof(*bd),
&io->bd_tbl_dma, GFP_KERNEL);
if (!io->bd_tbl) {
iscsi_session_printk(KERN_ERR, session, "Could not "
"allocate bdt.\n");
return -ENOMEM;
}
io->bd_valid = 0;
return 0;
}
/**
* bnx2i_destroy_cmd_pool - destroys iscsi command pool and release BD table
* @hba: adapter instance pointer
* @session: iscsi session pointer
*/
static void bnx2i_destroy_cmd_pool(struct bnx2i_hba *hba,
struct iscsi_session *session)
{
int i;
for (i = 0; i < session->cmds_max; i++) {
struct iscsi_task *task = session->cmds[i];
struct bnx2i_cmd *cmd = task->dd_data;
if (cmd->io_tbl.bd_tbl)
dma_free_coherent(&hba->pcidev->dev,
ISCSI_MAX_BDS_PER_CMD *
sizeof(struct iscsi_bd),
cmd->io_tbl.bd_tbl,
cmd->io_tbl.bd_tbl_dma);
}
}
/**
* bnx2i_setup_cmd_pool - sets up iscsi command pool for the session
* @hba: adapter instance pointer
* @session: iscsi session pointer
*/
static int bnx2i_setup_cmd_pool(struct bnx2i_hba *hba,
struct iscsi_session *session)
{
int i;
for (i = 0; i < session->cmds_max; i++) {
struct iscsi_task *task = session->cmds[i];
struct bnx2i_cmd *cmd = task->dd_data;
task->hdr = &cmd->hdr;
task->hdr_max = sizeof(struct iscsi_hdr);
if (bnx2i_alloc_bdt(hba, session, cmd))
goto free_bdts;
}
return 0;
free_bdts:
bnx2i_destroy_cmd_pool(hba, session);
return -ENOMEM;
}
/**
* bnx2i_setup_mp_bdt - allocate BD table resources
* @hba: pointer to adapter structure
*
* Allocate memory for dummy buffer and associated BD
* table to be used by middle path (MP) requests
*/
static int bnx2i_setup_mp_bdt(struct bnx2i_hba *hba)
{
int rc = 0;
struct iscsi_bd *mp_bdt;
u64 addr;
hba->mp_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
&hba->mp_bd_dma, GFP_KERNEL);
if (!hba->mp_bd_tbl) {
printk(KERN_ERR "unable to allocate Middle Path BDT\n");
rc = -1;
goto out;
}
hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev,
CNIC_PAGE_SIZE,
&hba->dummy_buf_dma, GFP_KERNEL);
if (!hba->dummy_buffer) {
printk(KERN_ERR "unable to alloc Middle Path Dummy Buffer\n");
dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
hba->mp_bd_tbl, hba->mp_bd_dma);
hba->mp_bd_tbl = NULL;
rc = -1;
goto out;
}
mp_bdt = (struct iscsi_bd *) hba->mp_bd_tbl;
addr = (unsigned long) hba->dummy_buf_dma;
mp_bdt->buffer_addr_lo = addr & 0xffffffff;
mp_bdt->buffer_addr_hi = addr >> 32;
mp_bdt->buffer_length = CNIC_PAGE_SIZE;
mp_bdt->flags = ISCSI_BD_LAST_IN_BD_CHAIN |
ISCSI_BD_FIRST_IN_BD_CHAIN;
out:
return rc;
}
/**
* bnx2i_free_mp_bdt - releases ITT back to free pool
* @hba: pointer to adapter instance
*
* free MP dummy buffer and associated BD table
*/
static void bnx2i_free_mp_bdt(struct bnx2i_hba *hba)
{
if (hba->mp_bd_tbl) {
dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
hba->mp_bd_tbl, hba->mp_bd_dma);
hba->mp_bd_tbl = NULL;
}
if (hba->dummy_buffer) {
dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
hba->dummy_buffer, hba->dummy_buf_dma);
hba->dummy_buffer = NULL;
}
return;
}
/**
* bnx2i_drop_session - notifies iscsid of connection error.
* @cls_session: iscsi cls session pointer
*
* This notifies iscsid that there is a error, so it can initiate
* recovery.
*
* This relies on caller using the iscsi class iterator so the object
* is refcounted and does not disapper from under us.
*/
void bnx2i_drop_session(struct iscsi_cls_session *cls_session)
{
iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
}
/**
* bnx2i_ep_destroy_list_add - add an entry to EP destroy list
* @hba: pointer to adapter instance
* @ep: pointer to endpoint (transport identifier) structure
*
* EP destroy queue manager
*/
static int bnx2i_ep_destroy_list_add(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
write_lock_bh(&hba->ep_rdwr_lock);
list_add_tail(&ep->link, &hba->ep_destroy_list);
write_unlock_bh(&hba->ep_rdwr_lock);
return 0;
}
/**
* bnx2i_ep_destroy_list_del - add an entry to EP destroy list
*
* @hba: pointer to adapter instance
* @ep: pointer to endpoint (transport identifier) structure
*
* EP destroy queue manager
*/
static int bnx2i_ep_destroy_list_del(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
write_lock_bh(&hba->ep_rdwr_lock);
list_del_init(&ep->link);
write_unlock_bh(&hba->ep_rdwr_lock);
return 0;
}
/**
* bnx2i_ep_ofld_list_add - add an entry to ep offload pending list
* @hba: pointer to adapter instance
* @ep: pointer to endpoint (transport identifier) structure
*
* pending conn offload completion queue manager
*/
static int bnx2i_ep_ofld_list_add(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
write_lock_bh(&hba->ep_rdwr_lock);
list_add_tail(&ep->link, &hba->ep_ofld_list);
write_unlock_bh(&hba->ep_rdwr_lock);
return 0;
}
/**
* bnx2i_ep_ofld_list_del - add an entry to ep offload pending list
* @hba: pointer to adapter instance
* @ep: pointer to endpoint (transport identifier) structure
*
* pending conn offload completion queue manager
*/
static int bnx2i_ep_ofld_list_del(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
write_lock_bh(&hba->ep_rdwr_lock);
list_del_init(&ep->link);
write_unlock_bh(&hba->ep_rdwr_lock);
return 0;
}
/**
* bnx2i_find_ep_in_ofld_list - find iscsi_cid in pending list of endpoints
*
* @hba: pointer to adapter instance
* @iscsi_cid: iscsi context ID to find
*
*/
struct bnx2i_endpoint *
bnx2i_find_ep_in_ofld_list(struct bnx2i_hba *hba, u32 iscsi_cid)
{
struct list_head *list;
struct list_head *tmp;
struct bnx2i_endpoint *ep = NULL;
read_lock_bh(&hba->ep_rdwr_lock);
list_for_each_safe(list, tmp, &hba->ep_ofld_list) {
ep = (struct bnx2i_endpoint *)list;
if (ep->ep_iscsi_cid == iscsi_cid)
break;
ep = NULL;
}
read_unlock_bh(&hba->ep_rdwr_lock);
if (!ep)
printk(KERN_ERR "l5 cid %d not found\n", iscsi_cid);
return ep;
}
/**
* bnx2i_find_ep_in_destroy_list - find iscsi_cid in destroy list
* @hba: pointer to adapter instance
* @iscsi_cid: iscsi context ID to find
*
*/
struct bnx2i_endpoint *
bnx2i_find_ep_in_destroy_list(struct bnx2i_hba *hba, u32 iscsi_cid)
{
struct list_head *list;
struct list_head *tmp;
struct bnx2i_endpoint *ep = NULL;
read_lock_bh(&hba->ep_rdwr_lock);
list_for_each_safe(list, tmp, &hba->ep_destroy_list) {
ep = (struct bnx2i_endpoint *)list;
if (ep->ep_iscsi_cid == iscsi_cid)
break;
ep = NULL;
}
read_unlock_bh(&hba->ep_rdwr_lock);
if (!ep)
printk(KERN_ERR "l5 cid %d not found\n", iscsi_cid);
return ep;
}
/**
* bnx2i_ep_active_list_add - add an entry to ep active list
* @hba: pointer to adapter instance
* @ep: pointer to endpoint (transport identifier) structure
*
* current active conn queue manager
*/
static void bnx2i_ep_active_list_add(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
write_lock_bh(&hba->ep_rdwr_lock);
list_add_tail(&ep->link, &hba->ep_active_list);
write_unlock_bh(&hba->ep_rdwr_lock);
}
/**
* bnx2i_ep_active_list_del - deletes an entry to ep active list
* @hba: pointer to adapter instance
* @ep: pointer to endpoint (transport identifier) structure
*
* current active conn queue manager
*/
static void bnx2i_ep_active_list_del(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
write_lock_bh(&hba->ep_rdwr_lock);
list_del_init(&ep->link);
write_unlock_bh(&hba->ep_rdwr_lock);
}
/**
* bnx2i_setup_host_queue_size - assigns shost->can_queue param
* @hba: pointer to adapter instance
* @shost: scsi host pointer
*
* Initializes 'can_queue' parameter based on how many outstanding commands
* the device can handle. Each device 5708/5709/57710 has different
* capabilities
*/
static void bnx2i_setup_host_queue_size(struct bnx2i_hba *hba,
struct Scsi_Host *shost)
{
if (test_bit(BNX2I_NX2_DEV_5708, &hba->cnic_dev_type))
shost->can_queue = ISCSI_MAX_CMDS_PER_HBA_5708;
else if (test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type))
shost->can_queue = ISCSI_MAX_CMDS_PER_HBA_5709;
else if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type))
shost->can_queue = ISCSI_MAX_CMDS_PER_HBA_57710;
else
shost->can_queue = ISCSI_MAX_CMDS_PER_HBA_5708;
}
/**
* bnx2i_alloc_hba - allocate and init adapter instance
* @cnic: cnic device pointer
*
* allocate & initialize adapter structure and call other
* support routines to do per adapter initialization
*/
struct bnx2i_hba *bnx2i_alloc_hba(struct cnic_dev *cnic)
{
struct Scsi_Host *shost;
struct bnx2i_hba *hba;
shost = iscsi_host_alloc(&bnx2i_host_template, sizeof(*hba), 0);
if (!shost)
return NULL;
shost->dma_boundary = cnic->pcidev->dma_mask;
shost->transportt = bnx2i_scsi_xport_template;
shost->max_id = ISCSI_MAX_CONNS_PER_HBA - 1;
shost->max_channel = 0;
shost->max_lun = 512;
shost->max_cmd_len = 16;
hba = iscsi_host_priv(shost);
hba->shost = shost;
hba->netdev = cnic->netdev;
/* Get PCI related information and update hba struct members */
hba->pcidev = cnic->pcidev;
pci_dev_get(hba->pcidev);
hba->pci_did = hba->pcidev->device;
hba->pci_vid = hba->pcidev->vendor;
hba->pci_sdid = hba->pcidev->subsystem_device;
hba->pci_svid = hba->pcidev->subsystem_vendor;
hba->pci_func = PCI_FUNC(hba->pcidev->devfn);
hba->pci_devno = PCI_SLOT(hba->pcidev->devfn);
bnx2i_identify_device(hba, cnic);
bnx2i_setup_host_queue_size(hba, shost);
hba->reg_base = pci_resource_start(hba->pcidev, 0);
if (test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) {
hba->regview = pci_iomap(hba->pcidev, 0, BNX2_MQ_CONFIG2);
if (!hba->regview)
goto ioreg_map_err;
} else if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) {
hba->regview = pci_iomap(hba->pcidev, 0, 4096);
if (!hba->regview)
goto ioreg_map_err;
}
if (bnx2i_setup_mp_bdt(hba))
goto mp_bdt_mem_err;
INIT_LIST_HEAD(&hba->ep_ofld_list);
INIT_LIST_HEAD(&hba->ep_active_list);
INIT_LIST_HEAD(&hba->ep_destroy_list);
rwlock_init(&hba->ep_rdwr_lock);
hba->mtu_supported = BNX2I_MAX_MTU_SUPPORTED;
/* different values for 5708/5709/57710 */
hba->max_active_conns = ISCSI_MAX_CONNS_PER_HBA;
if (bnx2i_setup_free_cid_que(hba))
goto cid_que_err;
/* SQ/RQ/CQ size can be changed via sysfx interface */
if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) {
if (sq_size && sq_size <= BNX2I_5770X_SQ_WQES_MAX)
hba->max_sqes = sq_size;
else
hba->max_sqes = BNX2I_5770X_SQ_WQES_DEFAULT;
} else { /* 5706/5708/5709 */
if (sq_size && sq_size <= BNX2I_570X_SQ_WQES_MAX)
hba->max_sqes = sq_size;
else
hba->max_sqes = BNX2I_570X_SQ_WQES_DEFAULT;
}
hba->max_rqes = rq_size;
hba->max_cqes = hba->max_sqes + rq_size;
if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) {
if (hba->max_cqes > BNX2I_5770X_CQ_WQES_MAX)
hba->max_cqes = BNX2I_5770X_CQ_WQES_MAX;
} else if (hba->max_cqes > BNX2I_570X_CQ_WQES_MAX)
hba->max_cqes = BNX2I_570X_CQ_WQES_MAX;
hba->num_ccell = hba->max_sqes / 2;
spin_lock_init(&hba->lock);
mutex_init(&hba->net_dev_lock);
init_waitqueue_head(&hba->eh_wait);
if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) {
hba->hba_shutdown_tmo = 30 * HZ;
hba->conn_teardown_tmo = 20 * HZ;
hba->conn_ctx_destroy_tmo = 6 * HZ;
} else { /* 5706/5708/5709 */
hba->hba_shutdown_tmo = 20 * HZ;
hba->conn_teardown_tmo = 10 * HZ;
hba->conn_ctx_destroy_tmo = 2 * HZ;
}
#ifdef CONFIG_32BIT
spin_lock_init(&hba->stat_lock);
#endif
memset(&hba->stats, 0, sizeof(struct iscsi_stats_info));
if (iscsi_host_add(shost, &hba->pcidev->dev))
goto free_dump_mem;
return hba;
free_dump_mem:
bnx2i_release_free_cid_que(hba);
cid_que_err:
bnx2i_free_mp_bdt(hba);
mp_bdt_mem_err:
if (hba->regview) {
pci_iounmap(hba->pcidev, hba->regview);
hba->regview = NULL;
}
ioreg_map_err:
pci_dev_put(hba->pcidev);
scsi_host_put(shost);
return NULL;
}
/**
* bnx2i_free_hba- releases hba structure and resources held by the adapter
* @hba: pointer to adapter instance
*
* free adapter structure and call various cleanup routines.
*/
void bnx2i_free_hba(struct bnx2i_hba *hba)
{
struct Scsi_Host *shost = hba->shost;
iscsi_host_remove(shost, false);
INIT_LIST_HEAD(&hba->ep_ofld_list);
INIT_LIST_HEAD(&hba->ep_active_list);
INIT_LIST_HEAD(&hba->ep_destroy_list);
if (hba->regview) {
pci_iounmap(hba->pcidev, hba->regview);
hba->regview = NULL;
}
pci_dev_put(hba->pcidev);
bnx2i_free_mp_bdt(hba);
bnx2i_release_free_cid_que(hba);
iscsi_host_free(shost);
}
/**
* bnx2i_conn_free_login_resources - free DMA resources used for login process
* @hba: pointer to adapter instance
* @bnx2i_conn: iscsi connection pointer
*
* Login related resources, mostly BDT & payload DMA memory is freed
*/
static void bnx2i_conn_free_login_resources(struct bnx2i_hba *hba,
struct bnx2i_conn *bnx2i_conn)
{
if (bnx2i_conn->gen_pdu.resp_bd_tbl) {
dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
bnx2i_conn->gen_pdu.resp_bd_tbl,
bnx2i_conn->gen_pdu.resp_bd_dma);
bnx2i_conn->gen_pdu.resp_bd_tbl = NULL;
}
if (bnx2i_conn->gen_pdu.req_bd_tbl) {
dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
bnx2i_conn->gen_pdu.req_bd_tbl,
bnx2i_conn->gen_pdu.req_bd_dma);
bnx2i_conn->gen_pdu.req_bd_tbl = NULL;
}
if (bnx2i_conn->gen_pdu.resp_buf) {
dma_free_coherent(&hba->pcidev->dev,
ISCSI_DEF_MAX_RECV_SEG_LEN,
bnx2i_conn->gen_pdu.resp_buf,
bnx2i_conn->gen_pdu.resp_dma_addr);
bnx2i_conn->gen_pdu.resp_buf = NULL;
}
if (bnx2i_conn->gen_pdu.req_buf) {
dma_free_coherent(&hba->pcidev->dev,
ISCSI_DEF_MAX_RECV_SEG_LEN,
bnx2i_conn->gen_pdu.req_buf,
bnx2i_conn->gen_pdu.req_dma_addr);
bnx2i_conn->gen_pdu.req_buf = NULL;
}
}
/**
* bnx2i_conn_alloc_login_resources - alloc DMA resources for login/nop.
* @hba: pointer to adapter instance
* @bnx2i_conn: iscsi connection pointer
*
* Mgmt task DNA resources are allocated in this routine.
*/
static int bnx2i_conn_alloc_login_resources(struct bnx2i_hba *hba,
struct bnx2i_conn *bnx2i_conn)
{
/* Allocate memory for login request/response buffers */
bnx2i_conn->gen_pdu.req_buf =
dma_alloc_coherent(&hba->pcidev->dev,
ISCSI_DEF_MAX_RECV_SEG_LEN,
&bnx2i_conn->gen_pdu.req_dma_addr,
GFP_KERNEL);
if (bnx2i_conn->gen_pdu.req_buf == NULL)
goto login_req_buf_failure;
bnx2i_conn->gen_pdu.req_buf_size = 0;
bnx2i_conn->gen_pdu.req_wr_ptr = bnx2i_conn->gen_pdu.req_buf;
bnx2i_conn->gen_pdu.resp_buf =
dma_alloc_coherent(&hba->pcidev->dev,
ISCSI_DEF_MAX_RECV_SEG_LEN,
&bnx2i_conn->gen_pdu.resp_dma_addr,
GFP_KERNEL);
if (bnx2i_conn->gen_pdu.resp_buf == NULL)
goto login_resp_buf_failure;
bnx2i_conn->gen_pdu.resp_buf_size = ISCSI_DEF_MAX_RECV_SEG_LEN;
bnx2i_conn->gen_pdu.resp_wr_ptr = bnx2i_conn->gen_pdu.resp_buf;
bnx2i_conn->gen_pdu.req_bd_tbl =
dma_alloc_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
&bnx2i_conn->gen_pdu.req_bd_dma, GFP_KERNEL);
if (bnx2i_conn->gen_pdu.req_bd_tbl == NULL)
goto login_req_bd_tbl_failure;
bnx2i_conn->gen_pdu.resp_bd_tbl =
dma_alloc_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
&bnx2i_conn->gen_pdu.resp_bd_dma,
GFP_KERNEL);
if (bnx2i_conn->gen_pdu.resp_bd_tbl == NULL)
goto login_resp_bd_tbl_failure;
return 0;
login_resp_bd_tbl_failure:
dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
bnx2i_conn->gen_pdu.req_bd_tbl,
bnx2i_conn->gen_pdu.req_bd_dma);
bnx2i_conn->gen_pdu.req_bd_tbl = NULL;
login_req_bd_tbl_failure:
dma_free_coherent(&hba->pcidev->dev, ISCSI_DEF_MAX_RECV_SEG_LEN,
bnx2i_conn->gen_pdu.resp_buf,
bnx2i_conn->gen_pdu.resp_dma_addr);
bnx2i_conn->gen_pdu.resp_buf = NULL;
login_resp_buf_failure:
dma_free_coherent(&hba->pcidev->dev, ISCSI_DEF_MAX_RECV_SEG_LEN,
bnx2i_conn->gen_pdu.req_buf,
bnx2i_conn->gen_pdu.req_dma_addr);
bnx2i_conn->gen_pdu.req_buf = NULL;
login_req_buf_failure:
iscsi_conn_printk(KERN_ERR, bnx2i_conn->cls_conn->dd_data,
"login resource alloc failed!!\n");
return -ENOMEM;
}
/**
* bnx2i_iscsi_prep_generic_pdu_bd - prepares BD table.
* @bnx2i_conn: iscsi connection pointer
*
* Allocates buffers and BD tables before shipping requests to cnic
* for PDUs prepared by 'iscsid' daemon
*/
static void bnx2i_iscsi_prep_generic_pdu_bd(struct bnx2i_conn *bnx2i_conn)
{
struct iscsi_bd *bd_tbl;
bd_tbl = (struct iscsi_bd *) bnx2i_conn->gen_pdu.req_bd_tbl;
bd_tbl->buffer_addr_hi =
(u32) ((u64) bnx2i_conn->gen_pdu.req_dma_addr >> 32);
bd_tbl->buffer_addr_lo = (u32) bnx2i_conn->gen_pdu.req_dma_addr;
bd_tbl->buffer_length = bnx2i_conn->gen_pdu.req_wr_ptr -
bnx2i_conn->gen_pdu.req_buf;
bd_tbl->reserved0 = 0;
bd_tbl->flags = ISCSI_BD_LAST_IN_BD_CHAIN |
ISCSI_BD_FIRST_IN_BD_CHAIN;
bd_tbl = (struct iscsi_bd *) bnx2i_conn->gen_pdu.resp_bd_tbl;
bd_tbl->buffer_addr_hi = (u64) bnx2i_conn->gen_pdu.resp_dma_addr >> 32;
bd_tbl->buffer_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_dma_addr;
bd_tbl->buffer_length = ISCSI_DEF_MAX_RECV_SEG_LEN;
bd_tbl->reserved0 = 0;
bd_tbl->flags = ISCSI_BD_LAST_IN_BD_CHAIN |
ISCSI_BD_FIRST_IN_BD_CHAIN;
}
/**
* bnx2i_iscsi_send_generic_request - called to send mgmt tasks.
* @task: transport layer task pointer
*
* called to transmit PDUs prepared by the 'iscsid' daemon. iSCSI login,
* Nop-out and Logout requests flow through this path.
*/
static int bnx2i_iscsi_send_generic_request(struct iscsi_task *task)
{
struct bnx2i_cmd *cmd = task->dd_data;
struct bnx2i_conn *bnx2i_conn = cmd->conn;
int rc = 0;
char *buf;
int data_len;
bnx2i_iscsi_prep_generic_pdu_bd(bnx2i_conn);
switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
case ISCSI_OP_LOGIN:
bnx2i_send_iscsi_login(bnx2i_conn, task);
break;
case ISCSI_OP_NOOP_OUT:
data_len = bnx2i_conn->gen_pdu.req_buf_size;
buf = bnx2i_conn->gen_pdu.req_buf;
if (data_len)
rc = bnx2i_send_iscsi_nopout(bnx2i_conn, task,
buf, data_len, 1);
else
rc = bnx2i_send_iscsi_nopout(bnx2i_conn, task,
NULL, 0, 1);
break;
case ISCSI_OP_LOGOUT:
rc = bnx2i_send_iscsi_logout(bnx2i_conn, task);
break;
case ISCSI_OP_SCSI_TMFUNC:
rc = bnx2i_send_iscsi_tmf(bnx2i_conn, task);
break;
case ISCSI_OP_TEXT:
rc = bnx2i_send_iscsi_text(bnx2i_conn, task);
break;
default:
iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data,
"send_gen: unsupported op 0x%x\n",
task->hdr->opcode);
}
return rc;
}
/**********************************************************************
* SCSI-ML Interface
**********************************************************************/
/**
* bnx2i_cpy_scsi_cdb - copies LUN & CDB fields in required format to sq wqe
* @sc: SCSI-ML command pointer
* @cmd: iscsi cmd pointer
*/
static void bnx2i_cpy_scsi_cdb(struct scsi_cmnd *sc, struct bnx2i_cmd *cmd)
{
u32 dword;
int lpcnt;
u8 *srcp;
u32 *dstp;
u32 scsi_lun[2];
int_to_scsilun(sc->device->lun, (struct scsi_lun *) scsi_lun);
cmd->req.lun[0] = be32_to_cpu(scsi_lun[0]);
cmd->req.lun[1] = be32_to_cpu(scsi_lun[1]);
lpcnt = cmd->scsi_cmd->cmd_len / sizeof(dword);
srcp = (u8 *) sc->cmnd;
dstp = (u32 *) cmd->req.cdb;
while (lpcnt--) {
memcpy(&dword, (const void *) srcp, 4);
*dstp = cpu_to_be32(dword);
srcp += 4;
dstp++;
}
if (sc->cmd_len & 0x3) {
dword = (u32) srcp[0] | ((u32) srcp[1] << 8);
*dstp = cpu_to_be32(dword);
}
}
static void bnx2i_cleanup_task(struct iscsi_task *task)
{
struct iscsi_conn *conn = task->conn;
struct bnx2i_conn *bnx2i_conn = conn->dd_data;
struct bnx2i_hba *hba = bnx2i_conn->hba;
/*
* mgmt task or cmd was never sent to us to transmit.
*/
if (!task->sc || task->state == ISCSI_TASK_PENDING)
return;
/*
* need to clean-up task context to claim dma buffers
*/
if (task->state == ISCSI_TASK_ABRT_TMF) {
bnx2i_send_cmd_cleanup_req(hba, task->dd_data);
spin_unlock_bh(&conn->session->back_lock);
wait_for_completion_timeout(&bnx2i_conn->cmd_cleanup_cmpl,
msecs_to_jiffies(ISCSI_CMD_CLEANUP_TIMEOUT));
spin_lock_bh(&conn->session->back_lock);
}
bnx2i_iscsi_unmap_sg_list(task->dd_data);
}
/**
* bnx2i_mtask_xmit - transmit mtask to chip for further processing
* @conn: transport layer conn structure pointer
* @task: transport layer command structure pointer
*/
static int
bnx2i_mtask_xmit(struct iscsi_conn *conn, struct iscsi_task *task)
{
struct bnx2i_conn *bnx2i_conn = conn->dd_data;
struct bnx2i_hba *hba = bnx2i_conn->hba;
struct bnx2i_cmd *cmd = task->dd_data;
memset(bnx2i_conn->gen_pdu.req_buf, 0, ISCSI_DEF_MAX_RECV_SEG_LEN);
bnx2i_setup_cmd_wqe_template(cmd);
bnx2i_conn->gen_pdu.req_buf_size = task->data_count;
/* Tx PDU/data length count */
ADD_STATS_64(hba, tx_pdus, 1);
ADD_STATS_64(hba, tx_bytes, task->data_count);
if (task->data_count) {
memcpy(bnx2i_conn->gen_pdu.req_buf, task->data,
task->data_count);
bnx2i_conn->gen_pdu.req_wr_ptr =
bnx2i_conn->gen_pdu.req_buf + task->data_count;
}
cmd->conn = conn->dd_data;
cmd->scsi_cmd = NULL;
return bnx2i_iscsi_send_generic_request(task);
}
/**
* bnx2i_task_xmit - transmit iscsi command to chip for further processing
* @task: transport layer command structure pointer
*
* maps SG buffers and send request to chip/firmware in the form of SQ WQE
*/
static int bnx2i_task_xmit(struct iscsi_task *task)
{
struct iscsi_conn *conn = task->conn;
struct iscsi_session *session = conn->session;
struct Scsi_Host *shost = iscsi_session_to_shost(session->cls_session);
struct bnx2i_hba *hba = iscsi_host_priv(shost);
struct bnx2i_conn *bnx2i_conn = conn->dd_data;
struct scsi_cmnd *sc = task->sc;
struct bnx2i_cmd *cmd = task->dd_data;
struct iscsi_scsi_req *hdr = (struct iscsi_scsi_req *)task->hdr;
if (atomic_read(&bnx2i_conn->ep->num_active_cmds) + 1 >
hba->max_sqes)
return -ENOMEM;
/*
* If there is no scsi_cmnd this must be a mgmt task
*/
if (!sc)
return bnx2i_mtask_xmit(conn, task);
bnx2i_setup_cmd_wqe_template(cmd);
cmd->req.op_code = ISCSI_OP_SCSI_CMD;
cmd->conn = bnx2i_conn;
cmd->scsi_cmd = sc;
cmd->req.total_data_transfer_length = scsi_bufflen(sc);
cmd->req.cmd_sn = be32_to_cpu(hdr->cmdsn);
bnx2i_iscsi_map_sg_list(cmd);
bnx2i_cpy_scsi_cdb(sc, cmd);
cmd->req.op_attr = ISCSI_ATTR_SIMPLE;
if (sc->sc_data_direction == DMA_TO_DEVICE) {
cmd->req.op_attr |= ISCSI_CMD_REQUEST_WRITE;
cmd->req.itt = task->itt |
(ISCSI_TASK_TYPE_WRITE << ISCSI_CMD_REQUEST_TYPE_SHIFT);
bnx2i_setup_write_cmd_bd_info(task);
} else {
if (scsi_bufflen(sc))
cmd->req.op_attr |= ISCSI_CMD_REQUEST_READ;
cmd->req.itt = task->itt |
(ISCSI_TASK_TYPE_READ << ISCSI_CMD_REQUEST_TYPE_SHIFT);
}
cmd->req.num_bds = cmd->io_tbl.bd_valid;
if (!cmd->io_tbl.bd_valid) {
cmd->req.bd_list_addr_lo = (u32) hba->mp_bd_dma;
cmd->req.bd_list_addr_hi = (u32) ((u64) hba->mp_bd_dma >> 32);
cmd->req.num_bds = 1;
}
bnx2i_send_iscsi_scsicmd(bnx2i_conn, cmd);
return 0;
}
/**
* bnx2i_session_create - create a new iscsi session
* @ep: pointer to iscsi endpoint
* @cmds_max: user specified maximum commands
* @qdepth: scsi queue depth to support
* @initial_cmdsn: initial iscsi CMDSN to be used for this session
*
* Creates a new iSCSI session instance on given device.
*/
static struct iscsi_cls_session *
bnx2i_session_create(struct iscsi_endpoint *ep,
uint16_t cmds_max, uint16_t qdepth,
uint32_t initial_cmdsn)
{
struct Scsi_Host *shost;
struct iscsi_cls_session *cls_session;
struct bnx2i_hba *hba;
struct bnx2i_endpoint *bnx2i_ep;
if (!ep) {
printk(KERN_ERR "bnx2i: missing ep.\n");
return NULL;
}
bnx2i_ep = ep->dd_data;
shost = bnx2i_ep->hba->shost;
hba = iscsi_host_priv(shost);
if (bnx2i_adapter_ready(hba))
return NULL;
/*
* user can override hw limit as long as it is within
* the min/max.
*/
if (cmds_max > hba->max_sqes)
cmds_max = hba->max_sqes;
else if (cmds_max < BNX2I_SQ_WQES_MIN)
cmds_max = BNX2I_SQ_WQES_MIN;
cls_session = iscsi_session_setup(&bnx2i_iscsi_transport, shost,
cmds_max, 0, sizeof(struct bnx2i_cmd),
initial_cmdsn, ISCSI_MAX_TARGET);
if (!cls_session)
return NULL;
if (bnx2i_setup_cmd_pool(hba, cls_session->dd_data))
goto session_teardown;
return cls_session;
session_teardown:
iscsi_session_teardown(cls_session);
return NULL;
}
/**
* bnx2i_session_destroy - destroys iscsi session
* @cls_session: pointer to iscsi cls session
*
* Destroys previously created iSCSI session instance and releases
* all resources held by it
*/
static void bnx2i_session_destroy(struct iscsi_cls_session *cls_session)
{
struct iscsi_session *session = cls_session->dd_data;
struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
struct bnx2i_hba *hba = iscsi_host_priv(shost);
bnx2i_destroy_cmd_pool(hba, session);
iscsi_session_teardown(cls_session);
}
/**
* bnx2i_conn_create - create iscsi connection instance
* @cls_session: pointer to iscsi cls session
* @cid: iscsi cid as per rfc (not NX2's CID terminology)
*
* Creates a new iSCSI connection instance for a given session
*/
static struct iscsi_cls_conn *
bnx2i_conn_create(struct iscsi_cls_session *cls_session, uint32_t cid)
{
struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
struct bnx2i_hba *hba = iscsi_host_priv(shost);
struct bnx2i_conn *bnx2i_conn;
struct iscsi_cls_conn *cls_conn;
struct iscsi_conn *conn;
cls_conn = iscsi_conn_setup(cls_session, sizeof(*bnx2i_conn),
cid);
if (!cls_conn)
return NULL;
conn = cls_conn->dd_data;
bnx2i_conn = conn->dd_data;
bnx2i_conn->cls_conn = cls_conn;
bnx2i_conn->hba = hba;
atomic_set(&bnx2i_conn->work_cnt, 0);
/* 'ep' ptr will be assigned in bind() call */
bnx2i_conn->ep = NULL;
init_completion(&bnx2i_conn->cmd_cleanup_cmpl);
if (bnx2i_conn_alloc_login_resources(hba, bnx2i_conn)) {
iscsi_conn_printk(KERN_ALERT, conn,
"conn_new: login resc alloc failed!!\n");
goto free_conn;
}
return cls_conn;
free_conn:
iscsi_conn_teardown(cls_conn);
return NULL;
}
/**
* bnx2i_conn_bind - binds iscsi sess, conn and ep objects together
* @cls_session: pointer to iscsi cls session
* @cls_conn: pointer to iscsi cls conn
* @transport_fd: 64-bit EP handle
* @is_leading: leading connection on this session?
*
* Binds together iSCSI session instance, iSCSI connection instance
* and the TCP connection. This routine returns error code if
* TCP connection does not belong on the device iSCSI sess/conn
* is bound
*/
static int bnx2i_conn_bind(struct iscsi_cls_session *cls_session,
struct iscsi_cls_conn *cls_conn,
uint64_t transport_fd, int is_leading)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct bnx2i_conn *bnx2i_conn = conn->dd_data;
struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
struct bnx2i_hba *hba = iscsi_host_priv(shost);
struct bnx2i_endpoint *bnx2i_ep;
struct iscsi_endpoint *ep;
int ret_code;
ep = iscsi_lookup_endpoint(transport_fd);
if (!ep)
return -EINVAL;
/*
* Forcefully terminate all in progress connection recovery at the
* earliest, either in bind(), send_pdu(LOGIN), or conn_start()
*/
if (bnx2i_adapter_ready(hba)) {
ret_code = -EIO;
goto put_ep;
}
bnx2i_ep = ep->dd_data;
if ((bnx2i_ep->state == EP_STATE_TCP_FIN_RCVD) ||
(bnx2i_ep->state == EP_STATE_TCP_RST_RCVD)) {
/* Peer disconnect via' FIN or RST */
ret_code = -EINVAL;
goto put_ep;
}
if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) {
ret_code = -EINVAL;
goto put_ep;
}
if (bnx2i_ep->hba != hba) {
/* Error - TCP connection does not belong to this device
*/
iscsi_conn_printk(KERN_ALERT, cls_conn->dd_data,
"conn bind, ep=0x%p (%s) does not",
bnx2i_ep, bnx2i_ep->hba->netdev->name);
iscsi_conn_printk(KERN_ALERT, cls_conn->dd_data,
"belong to hba (%s)\n",
hba->netdev->name);
ret_code = -EEXIST;
goto put_ep;
}
bnx2i_ep->conn = bnx2i_conn;
bnx2i_conn->ep = bnx2i_ep;
bnx2i_conn->iscsi_conn_cid = bnx2i_ep->ep_iscsi_cid;
bnx2i_conn->fw_cid = bnx2i_ep->ep_cid;
ret_code = bnx2i_bind_conn_to_iscsi_cid(hba, bnx2i_conn,
bnx2i_ep->ep_iscsi_cid);
/* 5706/5708/5709 FW takes RQ as full when initiated, but for 57710
* driver needs to explicitly replenish RQ index during setup.
*/
if (test_bit(BNX2I_NX2_DEV_57710, &bnx2i_ep->hba->cnic_dev_type))
bnx2i_put_rq_buf(bnx2i_conn, 0);
bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, CNIC_ARM_CQE);
put_ep:
iscsi_put_endpoint(ep);
return ret_code;
}
/**
* bnx2i_conn_destroy - destroy iscsi connection instance & release resources
* @cls_conn: pointer to iscsi cls conn
*
* Destroy an iSCSI connection instance and release memory resources held by
* this connection
*/
static void bnx2i_conn_destroy(struct iscsi_cls_conn *cls_conn)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct bnx2i_conn *bnx2i_conn = conn->dd_data;
struct Scsi_Host *shost;
struct bnx2i_hba *hba;
struct bnx2i_work *work, *tmp;
unsigned cpu = 0;
struct bnx2i_percpu_s *p;
shost = iscsi_session_to_shost(iscsi_conn_to_session(cls_conn));
hba = iscsi_host_priv(shost);
bnx2i_conn_free_login_resources(hba, bnx2i_conn);
if (atomic_read(&bnx2i_conn->work_cnt)) {
for_each_online_cpu(cpu) {
p = &per_cpu(bnx2i_percpu, cpu);
spin_lock_bh(&p->p_work_lock);
list_for_each_entry_safe(work, tmp,
&p->work_list, list) {
if (work->session == conn->session &&
work->bnx2i_conn == bnx2i_conn) {
list_del_init(&work->list);
kfree(work);
if (!atomic_dec_and_test(
&bnx2i_conn->work_cnt))
break;
}
}
spin_unlock_bh(&p->p_work_lock);
}
}
iscsi_conn_teardown(cls_conn);
}
/**
* bnx2i_ep_get_param - return iscsi ep parameter to caller
* @ep: pointer to iscsi endpoint
* @param: parameter type identifier
* @buf: buffer pointer
*
* returns iSCSI ep parameters
*/
static int bnx2i_ep_get_param(struct iscsi_endpoint *ep,
enum iscsi_param param, char *buf)
{
struct bnx2i_endpoint *bnx2i_ep = ep->dd_data;
struct bnx2i_hba *hba = bnx2i_ep->hba;
int len = -ENOTCONN;
if (!hba)
return -ENOTCONN;
switch (param) {
case ISCSI_PARAM_CONN_PORT:
mutex_lock(&hba->net_dev_lock);
if (bnx2i_ep->cm_sk)
len = sprintf(buf, "%hu\n", bnx2i_ep->cm_sk->dst_port);
mutex_unlock(&hba->net_dev_lock);
break;
case ISCSI_PARAM_CONN_ADDRESS:
mutex_lock(&hba->net_dev_lock);
if (bnx2i_ep->cm_sk)
len = sprintf(buf, "%pI4\n", &bnx2i_ep->cm_sk->dst_ip);
mutex_unlock(&hba->net_dev_lock);
break;
default:
return -ENOSYS;
}
return len;
}
/**
* bnx2i_host_get_param - returns host (adapter) related parameters
* @shost: scsi host pointer
* @param: parameter type identifier
* @buf: buffer pointer
*/
static int bnx2i_host_get_param(struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf)
{
struct bnx2i_hba *hba = iscsi_host_priv(shost);
int len = 0;
switch (param) {
case ISCSI_HOST_PARAM_HWADDRESS:
len = sysfs_format_mac(buf, hba->cnic->mac_addr, 6);
break;
case ISCSI_HOST_PARAM_NETDEV_NAME:
len = sprintf(buf, "%s\n", hba->netdev->name);
break;
case ISCSI_HOST_PARAM_IPADDRESS: {
struct list_head *active_list = &hba->ep_active_list;
read_lock_bh(&hba->ep_rdwr_lock);
if (!list_empty(&hba->ep_active_list)) {
struct bnx2i_endpoint *bnx2i_ep;
struct cnic_sock *csk;
bnx2i_ep = list_first_entry(active_list,
struct bnx2i_endpoint,
link);
csk = bnx2i_ep->cm_sk;
if (test_bit(SK_F_IPV6, &csk->flags))
len = sprintf(buf, "%pI6\n", csk->src_ip);
else
len = sprintf(buf, "%pI4\n", csk->src_ip);
}
read_unlock_bh(&hba->ep_rdwr_lock);
break;
}
default:
return iscsi_host_get_param(shost, param, buf);
}
return len;
}
/**
* bnx2i_conn_start - completes iscsi connection migration to FFP
* @cls_conn: pointer to iscsi cls conn
*
* last call in FFP migration to handover iscsi conn to the driver
*/
static int bnx2i_conn_start(struct iscsi_cls_conn *cls_conn)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct bnx2i_conn *bnx2i_conn = conn->dd_data;
bnx2i_conn->ep->state = EP_STATE_ULP_UPDATE_START;
bnx2i_update_iscsi_conn(conn);
/*
* this should normally not sleep for a long time so it should
* not disrupt the caller.
*/
timer_setup(&bnx2i_conn->ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
bnx2i_conn->ep->ofld_timer.expires = 1 * HZ + jiffies;
add_timer(&bnx2i_conn->ep->ofld_timer);
/* update iSCSI context for this conn, wait for CNIC to complete */
wait_event_interruptible(bnx2i_conn->ep->ofld_wait,
bnx2i_conn->ep->state != EP_STATE_ULP_UPDATE_START);
if (signal_pending(current))
flush_signals(current);
del_timer_sync(&bnx2i_conn->ep->ofld_timer);
iscsi_conn_start(cls_conn);
return 0;
}
/**
* bnx2i_conn_get_stats - returns iSCSI stats
* @cls_conn: pointer to iscsi cls conn
* @stats: pointer to iscsi statistic struct
*/
static void bnx2i_conn_get_stats(struct iscsi_cls_conn *cls_conn,
struct iscsi_stats *stats)
{
struct iscsi_conn *conn = cls_conn->dd_data;
stats->txdata_octets = conn->txdata_octets;
stats->rxdata_octets = conn->rxdata_octets;
stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
stats->dataout_pdus = conn->dataout_pdus_cnt;
stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
stats->datain_pdus = conn->datain_pdus_cnt;
stats->r2t_pdus = conn->r2t_pdus_cnt;
stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
stats->digest_err = 0;
stats->timeout_err = 0;
strcpy(stats->custom[0].desc, "eh_abort_cnt");
stats->custom[0].value = conn->eh_abort_cnt;
stats->custom_length = 1;
}
/**
* bnx2i_check_route - checks if target IP route belongs to one of NX2 devices
* @dst_addr: target IP address
*
* check if route resolves to BNX2 device
*/
static struct bnx2i_hba *bnx2i_check_route(struct sockaddr *dst_addr)
{
struct sockaddr_in *desti = (struct sockaddr_in *) dst_addr;
struct bnx2i_hba *hba;
struct cnic_dev *cnic = NULL;
hba = get_adapter_list_head();
if (hba && hba->cnic)
cnic = hba->cnic->cm_select_dev(desti, CNIC_ULP_ISCSI);
if (!cnic) {
printk(KERN_ALERT "bnx2i: no route,"
"can't connect using cnic\n");
goto no_nx2_route;
}
hba = bnx2i_find_hba_for_cnic(cnic);
if (!hba)
goto no_nx2_route;
if (bnx2i_adapter_ready(hba)) {
printk(KERN_ALERT "bnx2i: check route, hba not found\n");
goto no_nx2_route;
}
if (hba->netdev->mtu > hba->mtu_supported) {
printk(KERN_ALERT "bnx2i: %s network i/f mtu is set to %d\n",
hba->netdev->name, hba->netdev->mtu);
printk(KERN_ALERT "bnx2i: iSCSI HBA can support mtu of %d\n",
hba->mtu_supported);
goto no_nx2_route;
}
return hba;
no_nx2_route:
return NULL;
}
/**
* bnx2i_tear_down_conn - tear down iscsi/tcp connection and free resources
* @hba: pointer to adapter instance
* @ep: endpoint (transport identifier) structure
*
* destroys cm_sock structure and on chip iscsi context
*/
static int bnx2i_tear_down_conn(struct bnx2i_hba *hba,
struct bnx2i_endpoint *ep)
{
if (test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic) && ep->cm_sk)
hba->cnic->cm_destroy(ep->cm_sk);
if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type) &&
ep->state == EP_STATE_DISCONN_TIMEDOUT) {
if (ep->conn && ep->conn->cls_conn &&
ep->conn->cls_conn->dd_data) {
struct iscsi_conn *conn = ep->conn->cls_conn->dd_data;
/* Must suspend all rx queue activity for this ep */
set_bit(ISCSI_CONN_FLAG_SUSPEND_RX, &conn->flags);
}
/* CONN_DISCONNECT timeout may or may not be an issue depending
* on what transcribed in TCP layer, different targets behave
* differently
*/
printk(KERN_ALERT "bnx2i (%s): - WARN - CONN_DISCON timed out, "
"please submit GRC Dump, NW/PCIe trace, "
"driver msgs to developers for analysis\n",
hba->netdev->name);
}
ep->state = EP_STATE_CLEANUP_START;
timer_setup(&ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
ep->ofld_timer.expires = hba->conn_ctx_destroy_tmo + jiffies;
add_timer(&ep->ofld_timer);
bnx2i_ep_destroy_list_add(hba, ep);
/* destroy iSCSI context, wait for it to complete */
if (bnx2i_send_conn_destroy(hba, ep))
ep->state = EP_STATE_CLEANUP_CMPL;
wait_event_interruptible(ep->ofld_wait,
(ep->state != EP_STATE_CLEANUP_START));
if (signal_pending(current))
flush_signals(current);
del_timer_sync(&ep->ofld_timer);
bnx2i_ep_destroy_list_del(hba, ep);
if (ep->state != EP_STATE_CLEANUP_CMPL)
/* should never happen */
printk(KERN_ALERT "bnx2i - conn destroy failed\n");
return 0;
}
/**
* bnx2i_ep_connect - establish TCP connection to target portal
* @shost: scsi host
* @dst_addr: target IP address
* @non_blocking: blocking or non-blocking call
*
* this routine initiates the TCP/IP connection by invoking Option-2 i/f
* with l5_core and the CNIC. This is a multi-step process of resolving
* route to target, create a iscsi connection context, handshaking with
* CNIC module to create/initialize the socket struct and finally
* sending down option-2 request to complete TCP 3-way handshake
*/
static struct iscsi_endpoint *bnx2i_ep_connect(struct Scsi_Host *shost,
struct sockaddr *dst_addr,
int non_blocking)
{
u32 iscsi_cid = BNX2I_CID_RESERVED;
struct sockaddr_in *desti = (struct sockaddr_in *) dst_addr;
struct sockaddr_in6 *desti6;
struct bnx2i_endpoint *bnx2i_ep;
struct bnx2i_hba *hba;
struct cnic_dev *cnic;
struct cnic_sockaddr saddr;
struct iscsi_endpoint *ep;
int rc = 0;
if (shost) {
/* driver is given scsi host to work with */
hba = iscsi_host_priv(shost);
} else
/*
* check if the given destination can be reached through
* a iscsi capable NetXtreme2 device
*/
hba = bnx2i_check_route(dst_addr);
if (!hba) {
rc = -EINVAL;
goto nohba;
}
mutex_lock(&hba->net_dev_lock);
if (bnx2i_adapter_ready(hba) || !hba->cid_que.cid_free_cnt) {
rc = -EPERM;
goto check_busy;
}
cnic = hba->cnic;
ep = bnx2i_alloc_ep(hba);
if (!ep) {
rc = -ENOMEM;
goto check_busy;
}
bnx2i_ep = ep->dd_data;
atomic_set(&bnx2i_ep->num_active_cmds, 0);
iscsi_cid = bnx2i_alloc_iscsi_cid(hba);
if (iscsi_cid == -1) {
printk(KERN_ALERT "bnx2i (%s): alloc_ep - unable to allocate "
"iscsi cid\n", hba->netdev->name);
rc = -ENOMEM;
bnx2i_free_ep(ep);
goto check_busy;
}
bnx2i_ep->hba_age = hba->age;
rc = bnx2i_alloc_qp_resc(hba, bnx2i_ep);
if (rc != 0) {
printk(KERN_ALERT "bnx2i (%s): ep_conn - alloc QP resc error"
"\n", hba->netdev->name);
rc = -ENOMEM;
goto qp_resc_err;
}
bnx2i_ep->ep_iscsi_cid = (u16)iscsi_cid;
bnx2i_ep->state = EP_STATE_OFLD_START;
bnx2i_ep_ofld_list_add(hba, bnx2i_ep);
timer_setup(&bnx2i_ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
bnx2i_ep->ofld_timer.expires = 2 * HZ + jiffies;
add_timer(&bnx2i_ep->ofld_timer);
if (bnx2i_send_conn_ofld_req(hba, bnx2i_ep)) {
if (bnx2i_ep->state == EP_STATE_OFLD_FAILED_CID_BUSY) {
printk(KERN_ALERT "bnx2i (%s): iscsi cid %d is busy\n",
hba->netdev->name, bnx2i_ep->ep_iscsi_cid);
rc = -EBUSY;
} else
rc = -ENOSPC;
printk(KERN_ALERT "bnx2i (%s): unable to send conn offld kwqe"
"\n", hba->netdev->name);
bnx2i_ep_ofld_list_del(hba, bnx2i_ep);
goto conn_failed;
}
/* Wait for CNIC hardware to setup conn context and return 'cid' */
wait_event_interruptible(bnx2i_ep->ofld_wait,
bnx2i_ep->state != EP_STATE_OFLD_START);
if (signal_pending(current))
flush_signals(current);
del_timer_sync(&bnx2i_ep->ofld_timer);
bnx2i_ep_ofld_list_del(hba, bnx2i_ep);
if (bnx2i_ep->state != EP_STATE_OFLD_COMPL) {
if (bnx2i_ep->state == EP_STATE_OFLD_FAILED_CID_BUSY) {
printk(KERN_ALERT "bnx2i (%s): iscsi cid %d is busy\n",
hba->netdev->name, bnx2i_ep->ep_iscsi_cid);
rc = -EBUSY;
} else
rc = -ENOSPC;
goto conn_failed;
}
rc = cnic->cm_create(cnic, CNIC_ULP_ISCSI, bnx2i_ep->ep_cid,
iscsi_cid, &bnx2i_ep->cm_sk, bnx2i_ep);
if (rc) {
rc = -EINVAL;
/* Need to terminate and cleanup the connection */
goto release_ep;
}
bnx2i_ep->cm_sk->rcv_buf = 256 * 1024;
bnx2i_ep->cm_sk->snd_buf = 256 * 1024;
clear_bit(SK_TCP_TIMESTAMP, &bnx2i_ep->cm_sk->tcp_flags);
memset(&saddr, 0, sizeof(saddr));
if (dst_addr->sa_family == AF_INET) {
desti = (struct sockaddr_in *) dst_addr;
saddr.remote.v4 = *desti;
saddr.local.v4.sin_family = desti->sin_family;
} else if (dst_addr->sa_family == AF_INET6) {
desti6 = (struct sockaddr_in6 *) dst_addr;
saddr.remote.v6 = *desti6;
saddr.local.v6.sin6_family = desti6->sin6_family;
}
bnx2i_ep->timestamp = jiffies;
bnx2i_ep->state = EP_STATE_CONNECT_START;
if (!test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic)) {
rc = -EINVAL;
goto conn_failed;
} else
rc = cnic->cm_connect(bnx2i_ep->cm_sk, &saddr);
if (rc)
goto release_ep;
bnx2i_ep_active_list_add(hba, bnx2i_ep);
rc = bnx2i_map_ep_dbell_regs(bnx2i_ep);
if (rc)
goto del_active_ep;
mutex_unlock(&hba->net_dev_lock);
return ep;
del_active_ep:
bnx2i_ep_active_list_del(hba, bnx2i_ep);
release_ep:
if (bnx2i_tear_down_conn(hba, bnx2i_ep)) {
mutex_unlock(&hba->net_dev_lock);
return ERR_PTR(rc);
}
conn_failed:
bnx2i_free_qp_resc(hba, bnx2i_ep);
qp_resc_err:
bnx2i_free_ep(ep);
check_busy:
mutex_unlock(&hba->net_dev_lock);
nohba:
return ERR_PTR(rc);
}
/**
* bnx2i_ep_poll - polls for TCP connection establishement
* @ep: TCP connection (endpoint) handle
* @timeout_ms: timeout value in milli secs
*
* polls for TCP connect request to complete
*/
static int bnx2i_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
{
struct bnx2i_endpoint *bnx2i_ep;
int rc = 0;
bnx2i_ep = ep->dd_data;
if ((bnx2i_ep->state == EP_STATE_IDLE) ||
(bnx2i_ep->state == EP_STATE_CONNECT_FAILED) ||
(bnx2i_ep->state == EP_STATE_OFLD_FAILED))
return -1;
if (bnx2i_ep->state == EP_STATE_CONNECT_COMPL)
return 1;
rc = wait_event_interruptible_timeout(bnx2i_ep->ofld_wait,
((bnx2i_ep->state ==
EP_STATE_OFLD_FAILED) ||
(bnx2i_ep->state ==
EP_STATE_CONNECT_FAILED) ||
(bnx2i_ep->state ==
EP_STATE_CONNECT_COMPL)),
msecs_to_jiffies(timeout_ms));
if (bnx2i_ep->state == EP_STATE_OFLD_FAILED)
rc = -1;
if (rc > 0)
return 1;
else if (!rc)
return 0; /* timeout */
else
return rc;
}
/**
* bnx2i_ep_tcp_conn_active - check EP state transition
* @bnx2i_ep: endpoint pointer
*
* check if underlying TCP connection is active
*/
static int bnx2i_ep_tcp_conn_active(struct bnx2i_endpoint *bnx2i_ep)
{
int ret;
int cnic_dev_10g = 0;
if (test_bit(BNX2I_NX2_DEV_57710, &bnx2i_ep->hba->cnic_dev_type))
cnic_dev_10g = 1;
switch (bnx2i_ep->state) {
case EP_STATE_CLEANUP_FAILED:
case EP_STATE_OFLD_FAILED:
case EP_STATE_DISCONN_TIMEDOUT:
ret = 0;
break;
case EP_STATE_CONNECT_START:
case EP_STATE_CONNECT_FAILED:
case EP_STATE_CONNECT_COMPL:
case EP_STATE_ULP_UPDATE_START:
case EP_STATE_ULP_UPDATE_COMPL:
case EP_STATE_TCP_FIN_RCVD:
case EP_STATE_LOGOUT_SENT:
case EP_STATE_LOGOUT_RESP_RCVD:
case EP_STATE_ULP_UPDATE_FAILED:
ret = 1;
break;
case EP_STATE_TCP_RST_RCVD:
if (cnic_dev_10g)
ret = 0;
else
ret = 1;
break;
default:
ret = 0;
}
return ret;
}
/**
* bnx2i_hw_ep_disconnect - executes TCP connection teardown process in the hw
* @bnx2i_ep: TCP connection (bnx2i endpoint) handle
*
* executes TCP connection teardown process
*/
int bnx2i_hw_ep_disconnect(struct bnx2i_endpoint *bnx2i_ep)
{
struct bnx2i_hba *hba = bnx2i_ep->hba;
struct cnic_dev *cnic;
struct iscsi_session *session = NULL;
struct iscsi_conn *conn = NULL;
int ret = 0;
int close = 0;
int close_ret = 0;
if (!hba)
return 0;
cnic = hba->cnic;
if (!cnic)
return 0;
if (bnx2i_ep->state == EP_STATE_IDLE ||
bnx2i_ep->state == EP_STATE_DISCONN_TIMEDOUT)
return 0;
if (!bnx2i_ep_tcp_conn_active(bnx2i_ep))
goto destroy_conn;
if (bnx2i_ep->conn) {
conn = bnx2i_ep->conn->cls_conn->dd_data;
session = conn->session;
}
timer_setup(&bnx2i_ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
bnx2i_ep->ofld_timer.expires = hba->conn_teardown_tmo + jiffies;
add_timer(&bnx2i_ep->ofld_timer);
if (!test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic))
goto out;
if (session) {
spin_lock_bh(&session->frwd_lock);
if (bnx2i_ep->state != EP_STATE_TCP_FIN_RCVD) {
if (session->state == ISCSI_STATE_LOGGING_OUT) {
if (bnx2i_ep->state == EP_STATE_LOGOUT_SENT) {
/* Logout sent, but no resp */
printk(KERN_ALERT "bnx2i (%s): WARNING"
" logout response was not "
"received!\n",
bnx2i_ep->hba->netdev->name);
} else if (bnx2i_ep->state ==
EP_STATE_LOGOUT_RESP_RCVD)
close = 1;
}
} else
close = 1;
spin_unlock_bh(&session->frwd_lock);
}
bnx2i_ep->state = EP_STATE_DISCONN_START;
if (close)
close_ret = cnic->cm_close(bnx2i_ep->cm_sk);
else
close_ret = cnic->cm_abort(bnx2i_ep->cm_sk);
if (close_ret)
printk(KERN_ALERT "bnx2i (%s): close/abort(%d) returned %d\n",
bnx2i_ep->hba->netdev->name, close, close_ret);
else
/* wait for option-2 conn teardown */
wait_event_interruptible(bnx2i_ep->ofld_wait,
((bnx2i_ep->state != EP_STATE_DISCONN_START)
&& (bnx2i_ep->state != EP_STATE_TCP_FIN_RCVD)));
if (signal_pending(current))
flush_signals(current);
del_timer_sync(&bnx2i_ep->ofld_timer);
destroy_conn:
bnx2i_ep_active_list_del(hba, bnx2i_ep);
if (bnx2i_tear_down_conn(hba, bnx2i_ep))
return -EINVAL;
out:
bnx2i_ep->state = EP_STATE_IDLE;
return ret;
}
/**
* bnx2i_ep_disconnect - executes TCP connection teardown process
* @ep: TCP connection (iscsi endpoint) handle
*
* executes TCP connection teardown process
*/
static void bnx2i_ep_disconnect(struct iscsi_endpoint *ep)
{
struct bnx2i_endpoint *bnx2i_ep;
struct bnx2i_conn *bnx2i_conn = NULL;
struct bnx2i_hba *hba;
bnx2i_ep = ep->dd_data;
/* driver should not attempt connection cleanup until TCP_CONNECT
* completes either successfully or fails. Timeout is 9-secs, so
* wait for it to complete
*/
while ((bnx2i_ep->state == EP_STATE_CONNECT_START) &&
!time_after(jiffies, bnx2i_ep->timestamp + (12 * HZ)))
msleep(250);
if (bnx2i_ep->conn)
bnx2i_conn = bnx2i_ep->conn;
hba = bnx2i_ep->hba;
mutex_lock(&hba->net_dev_lock);
if (bnx2i_ep->state == EP_STATE_DISCONN_TIMEDOUT)
goto out;
if (bnx2i_ep->state == EP_STATE_IDLE)
goto free_resc;
if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) ||
(bnx2i_ep->hba_age != hba->age)) {
bnx2i_ep_active_list_del(hba, bnx2i_ep);
goto free_resc;
}
/* Do all chip cleanup here */
if (bnx2i_hw_ep_disconnect(bnx2i_ep)) {
mutex_unlock(&hba->net_dev_lock);
return;
}
free_resc:
bnx2i_free_qp_resc(hba, bnx2i_ep);
if (bnx2i_conn)
bnx2i_conn->ep = NULL;
bnx2i_free_ep(ep);
out:
mutex_unlock(&hba->net_dev_lock);
wake_up_interruptible(&hba->eh_wait);
}
/**
* bnx2i_nl_set_path - ISCSI_UEVENT_PATH_UPDATE user message handler
* @shost: scsi host pointer
* @params: pointer to buffer containing iscsi path message
*/
static int bnx2i_nl_set_path(struct Scsi_Host *shost, struct iscsi_path *params)
{
struct bnx2i_hba *hba = iscsi_host_priv(shost);
char *buf = (char *) params;
u16 len = sizeof(*params);
/* handled by cnic driver */
hba->cnic->iscsi_nl_msg_recv(hba->cnic, ISCSI_UEVENT_PATH_UPDATE, buf,
len);
return 0;
}
static umode_t bnx2i_attr_is_visible(int param_type, int param)
{
switch (param_type) {
case ISCSI_HOST_PARAM:
switch (param) {
case ISCSI_HOST_PARAM_NETDEV_NAME:
case ISCSI_HOST_PARAM_HWADDRESS:
case ISCSI_HOST_PARAM_IPADDRESS:
return S_IRUGO;
default:
return 0;
}
case ISCSI_PARAM:
switch (param) {
case ISCSI_PARAM_MAX_RECV_DLENGTH:
case ISCSI_PARAM_MAX_XMIT_DLENGTH:
case ISCSI_PARAM_HDRDGST_EN:
case ISCSI_PARAM_DATADGST_EN:
case ISCSI_PARAM_CONN_ADDRESS:
case ISCSI_PARAM_CONN_PORT:
case ISCSI_PARAM_EXP_STATSN:
case ISCSI_PARAM_PERSISTENT_ADDRESS:
case ISCSI_PARAM_PERSISTENT_PORT:
case ISCSI_PARAM_PING_TMO:
case ISCSI_PARAM_RECV_TMO:
case ISCSI_PARAM_INITIAL_R2T_EN:
case ISCSI_PARAM_MAX_R2T:
case ISCSI_PARAM_IMM_DATA_EN:
case ISCSI_PARAM_FIRST_BURST:
case ISCSI_PARAM_MAX_BURST:
case ISCSI_PARAM_PDU_INORDER_EN:
case ISCSI_PARAM_DATASEQ_INORDER_EN:
case ISCSI_PARAM_ERL:
case ISCSI_PARAM_TARGET_NAME:
case ISCSI_PARAM_TPGT:
case ISCSI_PARAM_USERNAME:
case ISCSI_PARAM_PASSWORD:
case ISCSI_PARAM_USERNAME_IN:
case ISCSI_PARAM_PASSWORD_IN:
case ISCSI_PARAM_FAST_ABORT:
case ISCSI_PARAM_ABORT_TMO:
case ISCSI_PARAM_LU_RESET_TMO:
case ISCSI_PARAM_TGT_RESET_TMO:
case ISCSI_PARAM_IFACE_NAME:
case ISCSI_PARAM_INITIATOR_NAME:
case ISCSI_PARAM_BOOT_ROOT:
case ISCSI_PARAM_BOOT_NIC:
case ISCSI_PARAM_BOOT_TARGET:
return S_IRUGO;
default:
return 0;
}
}
return 0;
}
/*
* 'Scsi_Host_Template' structure and 'iscsi_tranport' structure template
* used while registering with the scsi host and iSCSI transport module.
*/
static const struct scsi_host_template bnx2i_host_template = {
.module = THIS_MODULE,
.name = "QLogic Offload iSCSI Initiator",
.proc_name = "bnx2i",
.queuecommand = iscsi_queuecommand,
.eh_timed_out = iscsi_eh_cmd_timed_out,
.eh_abort_handler = iscsi_eh_abort,
.eh_device_reset_handler = iscsi_eh_device_reset,
.eh_target_reset_handler = iscsi_eh_recover_target,
.change_queue_depth = scsi_change_queue_depth,
.target_alloc = iscsi_target_alloc,
.can_queue = 2048,
.max_sectors = 127,
.cmd_per_lun = 128,
.this_id = -1,
.sg_tablesize = ISCSI_MAX_BDS_PER_CMD,
.shost_groups = bnx2i_dev_groups,
.track_queue_depth = 1,
.cmd_size = sizeof(struct iscsi_cmd),
};
struct iscsi_transport bnx2i_iscsi_transport = {
.owner = THIS_MODULE,
.name = "bnx2i",
.caps = CAP_RECOVERY_L0 | CAP_HDRDGST |
CAP_MULTI_R2T | CAP_DATADGST |
CAP_DATA_PATH_OFFLOAD |
CAP_TEXT_NEGO,
.create_session = bnx2i_session_create,
.destroy_session = bnx2i_session_destroy,
.create_conn = bnx2i_conn_create,
.bind_conn = bnx2i_conn_bind,
.unbind_conn = iscsi_conn_unbind,
.destroy_conn = bnx2i_conn_destroy,
.attr_is_visible = bnx2i_attr_is_visible,
.set_param = iscsi_set_param,
.get_conn_param = iscsi_conn_get_param,
.get_session_param = iscsi_session_get_param,
.get_host_param = bnx2i_host_get_param,
.start_conn = bnx2i_conn_start,
.stop_conn = iscsi_conn_stop,
.send_pdu = iscsi_conn_send_pdu,
.xmit_task = bnx2i_task_xmit,
.get_stats = bnx2i_conn_get_stats,
/* TCP connect - disconnect - option-2 interface calls */
.get_ep_param = bnx2i_ep_get_param,
.ep_connect = bnx2i_ep_connect,
.ep_poll = bnx2i_ep_poll,
.ep_disconnect = bnx2i_ep_disconnect,
.set_path = bnx2i_nl_set_path,
/* Error recovery timeout call */
.session_recovery_timedout = iscsi_session_recovery_timedout,
.cleanup_task = bnx2i_cleanup_task,
};
|
linux-master
|
drivers/scsi/bnx2i/bnx2i_iscsi.c
|
/* bnx2i.c: QLogic NetXtreme II iSCSI driver.
*
* Copyright (c) 2006 - 2013 Broadcom Corporation
* Copyright (c) 2007, 2008 Red Hat, Inc. All rights reserved.
* Copyright (c) 2007, 2008 Mike Christie
* Copyright (c) 2014, QLogic Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Anil Veerabhadrappa ([email protected])
* Previously Maintained by: Eddie Wai ([email protected])
* Maintained by: [email protected]
*/
#include "bnx2i.h"
static struct list_head adapter_list = LIST_HEAD_INIT(adapter_list);
static u32 adapter_count;
#define DRV_MODULE_NAME "bnx2i"
#define DRV_MODULE_VERSION "2.7.10.1"
#define DRV_MODULE_RELDATE "Jul 16, 2014"
static char version[] =
"QLogic NetXtreme II iSCSI Driver " DRV_MODULE_NAME \
" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Anil Veerabhadrappa <[email protected]> and "
"Eddie Wai <[email protected]>");
MODULE_DESCRIPTION("QLogic NetXtreme II BCM5706/5708/5709/57710/57711/57712"
"/57800/57810/57840 iSCSI Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
static DEFINE_MUTEX(bnx2i_dev_lock);
unsigned int event_coal_min = 24;
module_param(event_coal_min, int, 0664);
MODULE_PARM_DESC(event_coal_min, "Event Coalescing Minimum Commands");
unsigned int event_coal_div = 2;
module_param(event_coal_div, int, 0664);
MODULE_PARM_DESC(event_coal_div, "Event Coalescing Divide Factor");
unsigned int en_tcp_dack = 1;
module_param(en_tcp_dack, int, 0664);
MODULE_PARM_DESC(en_tcp_dack, "Enable TCP Delayed ACK");
unsigned int error_mask1 = 0x00;
module_param(error_mask1, uint, 0664);
MODULE_PARM_DESC(error_mask1, "Config FW iSCSI Error Mask #1");
unsigned int error_mask2 = 0x00;
module_param(error_mask2, uint, 0664);
MODULE_PARM_DESC(error_mask2, "Config FW iSCSI Error Mask #2");
unsigned int sq_size;
module_param(sq_size, int, 0664);
MODULE_PARM_DESC(sq_size, "Configure SQ size");
unsigned int rq_size = BNX2I_RQ_WQES_DEFAULT;
module_param(rq_size, int, 0664);
MODULE_PARM_DESC(rq_size, "Configure RQ size");
u64 iscsi_error_mask = 0x00;
DEFINE_PER_CPU(struct bnx2i_percpu_s, bnx2i_percpu);
/**
* bnx2i_identify_device - identifies NetXtreme II device type
* @hba: Adapter structure pointer
* @dev: Corresponding cnic device
*
* This function identifies the NX2 device type and sets appropriate
* queue mailbox register access method, 5709 requires driver to
* access MBOX regs using *bin* mode
*/
void bnx2i_identify_device(struct bnx2i_hba *hba, struct cnic_dev *dev)
{
hba->cnic_dev_type = 0;
if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
if (hba->pci_did == PCI_DEVICE_ID_NX2_5706 ||
hba->pci_did == PCI_DEVICE_ID_NX2_5706S) {
set_bit(BNX2I_NX2_DEV_5706, &hba->cnic_dev_type);
} else if (hba->pci_did == PCI_DEVICE_ID_NX2_5708 ||
hba->pci_did == PCI_DEVICE_ID_NX2_5708S) {
set_bit(BNX2I_NX2_DEV_5708, &hba->cnic_dev_type);
} else if (hba->pci_did == PCI_DEVICE_ID_NX2_5709 ||
hba->pci_did == PCI_DEVICE_ID_NX2_5709S) {
set_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type);
hba->mail_queue_access = BNX2I_MQ_BIN_MODE;
}
} else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
set_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type);
} else {
printk(KERN_ALERT "bnx2i: unknown device, 0x%x\n",
hba->pci_did);
}
}
/**
* get_adapter_list_head - returns head of adapter list
*/
struct bnx2i_hba *get_adapter_list_head(void)
{
struct bnx2i_hba *hba = NULL;
struct bnx2i_hba *tmp_hba;
if (!adapter_count)
goto hba_not_found;
mutex_lock(&bnx2i_dev_lock);
list_for_each_entry(tmp_hba, &adapter_list, link) {
if (tmp_hba->cnic && tmp_hba->cnic->cm_select_dev) {
hba = tmp_hba;
break;
}
}
mutex_unlock(&bnx2i_dev_lock);
hba_not_found:
return hba;
}
/**
* bnx2i_find_hba_for_cnic - maps cnic device instance to bnx2i adapter instance
* @cnic: pointer to cnic device instance
*
*/
struct bnx2i_hba *bnx2i_find_hba_for_cnic(struct cnic_dev *cnic)
{
struct bnx2i_hba *hba, *temp;
mutex_lock(&bnx2i_dev_lock);
list_for_each_entry_safe(hba, temp, &adapter_list, link) {
if (hba->cnic == cnic) {
mutex_unlock(&bnx2i_dev_lock);
return hba;
}
}
mutex_unlock(&bnx2i_dev_lock);
return NULL;
}
/**
* bnx2i_start - cnic callback to initialize & start adapter instance
* @handle: transparent handle pointing to adapter structure
*
* This function maps adapter structure to pcidev structure and initiates
* firmware handshake to enable/initialize on chip iscsi components
* This bnx2i - cnic interface api callback is issued after following
* 2 conditions are met -
* a) underlying network interface is up (marked by event 'NETDEV_UP'
* from netdev
* b) bnx2i adapter instance is registered
*/
void bnx2i_start(void *handle)
{
#define BNX2I_INIT_POLL_TIME (1000 / HZ)
struct bnx2i_hba *hba = handle;
int i = HZ;
/* On some bnx2x devices, it is possible that iSCSI is no
* longer supported after firmware is downloaded. In that
* case, the iscsi_init_msg will return failure.
*/
bnx2i_send_fw_iscsi_init_msg(hba);
while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) &&
!test_bit(ADAPTER_STATE_INIT_FAILED, &hba->adapter_state) && i--)
msleep(BNX2I_INIT_POLL_TIME);
}
/**
* bnx2i_chip_cleanup - local routine to handle chip cleanup
* @hba: Adapter instance to register
*
* Driver checks if adapter still has any active connections before
* executing the cleanup process
*/
static void bnx2i_chip_cleanup(struct bnx2i_hba *hba)
{
struct bnx2i_endpoint *bnx2i_ep;
struct list_head *pos, *tmp;
if (hba->ofld_conns_active) {
/* Stage to force the disconnection
* This is the case where the daemon is either slow or
* not present
*/
printk(KERN_ALERT "bnx2i: (%s) chip cleanup for %d active "
"connections\n", hba->netdev->name,
hba->ofld_conns_active);
mutex_lock(&hba->net_dev_lock);
list_for_each_safe(pos, tmp, &hba->ep_active_list) {
bnx2i_ep = list_entry(pos, struct bnx2i_endpoint, link);
/* Clean up the chip only */
bnx2i_hw_ep_disconnect(bnx2i_ep);
bnx2i_ep->cm_sk = NULL;
}
mutex_unlock(&hba->net_dev_lock);
}
}
/**
* bnx2i_stop - cnic callback to shutdown adapter instance
* @handle: transparent handle pointing to adapter structure
*
* driver checks if adapter is already in shutdown mode, if not start
* the shutdown process
*/
void bnx2i_stop(void *handle)
{
struct bnx2i_hba *hba = handle;
int conns_active;
int wait_delay = 1 * HZ;
/* check if cleanup happened in GOING_DOWN context */
if (!test_and_set_bit(ADAPTER_STATE_GOING_DOWN,
&hba->adapter_state)) {
iscsi_host_for_each_session(hba->shost,
bnx2i_drop_session);
wait_delay = hba->hba_shutdown_tmo;
}
/* Wait for inflight offload connection tasks to complete before
* proceeding. Forcefully terminate all connection recovery in
* progress at the earliest, either in bind(), send_pdu(LOGIN),
* or conn_start()
*/
wait_event_interruptible_timeout(hba->eh_wait,
(list_empty(&hba->ep_ofld_list) &&
list_empty(&hba->ep_destroy_list)),
2 * HZ);
/* Wait for all endpoints to be torn down, Chip will be reset once
* control returns to network driver. So it is required to cleanup and
* release all connection resources before returning from this routine.
*/
while (hba->ofld_conns_active) {
conns_active = hba->ofld_conns_active;
wait_event_interruptible_timeout(hba->eh_wait,
(hba->ofld_conns_active != conns_active),
wait_delay);
if (hba->ofld_conns_active == conns_active)
break;
}
bnx2i_chip_cleanup(hba);
/* This flag should be cleared last so that ep_disconnect() gracefully
* cleans up connection context
*/
clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
}
/**
* bnx2i_init_one - initialize an adapter instance and allocate memory resources
* @hba: bnx2i adapter instance
* @cnic: cnic device handle
*
* Global resource lock is held during critical sections below. This routine is
* called from either cnic_register_driver() or device hot plug context and
* and does majority of device specific initialization
*/
static int bnx2i_init_one(struct bnx2i_hba *hba, struct cnic_dev *cnic)
{
int rc;
mutex_lock(&bnx2i_dev_lock);
if (!cnic->max_iscsi_conn) {
printk(KERN_ALERT "bnx2i: dev %s does not support "
"iSCSI\n", hba->netdev->name);
rc = -EOPNOTSUPP;
goto out;
}
hba->cnic = cnic;
rc = cnic->register_device(cnic, CNIC_ULP_ISCSI, hba);
if (!rc) {
hba->age++;
set_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);
list_add_tail(&hba->link, &adapter_list);
adapter_count++;
} else if (rc == -EBUSY) /* duplicate registration */
printk(KERN_ALERT "bnx2i, duplicate registration"
"hba=%p, cnic=%p\n", hba, cnic);
else if (rc == -EAGAIN)
printk(KERN_ERR "bnx2i, driver not registered\n");
else if (rc == -EINVAL)
printk(KERN_ERR "bnx2i, invalid type %d\n", CNIC_ULP_ISCSI);
else
printk(KERN_ERR "bnx2i dev reg, unknown error, %d\n", rc);
out:
mutex_unlock(&bnx2i_dev_lock);
return rc;
}
/**
* bnx2i_ulp_init - initialize an adapter instance
* @dev: cnic device handle
*
* Called from cnic_register_driver() context to initialize all enumerated
* cnic devices. This routine allocate adapter structure and other
* device specific resources.
*/
void bnx2i_ulp_init(struct cnic_dev *dev)
{
struct bnx2i_hba *hba;
/* Allocate a HBA structure for this device */
hba = bnx2i_alloc_hba(dev);
if (!hba) {
printk(KERN_ERR "bnx2i init: hba initialization failed\n");
return;
}
/* Get PCI related information and update hba struct members */
clear_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);
if (bnx2i_init_one(hba, dev)) {
printk(KERN_ERR "bnx2i - hba %p init failed\n", hba);
bnx2i_free_hba(hba);
}
}
/**
* bnx2i_ulp_exit - shuts down adapter instance and frees all resources
* @dev: cnic device handle
*
*/
void bnx2i_ulp_exit(struct cnic_dev *dev)
{
struct bnx2i_hba *hba;
hba = bnx2i_find_hba_for_cnic(dev);
if (!hba) {
printk(KERN_INFO "bnx2i_ulp_exit: hba not "
"found, dev 0x%p\n", dev);
return;
}
mutex_lock(&bnx2i_dev_lock);
list_del_init(&hba->link);
adapter_count--;
if (test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic)) {
hba->cnic->unregister_device(hba->cnic, CNIC_ULP_ISCSI);
clear_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);
}
mutex_unlock(&bnx2i_dev_lock);
bnx2i_free_hba(hba);
}
/**
* bnx2i_get_stats - Retrieve various statistic from iSCSI offload
* @handle: bnx2i_hba
*
* function callback exported via bnx2i - cnic driver interface to
* retrieve various iSCSI offload related statistics.
*/
int bnx2i_get_stats(void *handle)
{
struct bnx2i_hba *hba = handle;
struct iscsi_stats_info *stats;
if (!hba)
return -EINVAL;
stats = (struct iscsi_stats_info *)hba->cnic->stats_addr;
if (!stats)
return -ENOMEM;
strscpy(stats->version, DRV_MODULE_VERSION, sizeof(stats->version));
memcpy(stats->mac_add1 + 2, hba->cnic->mac_addr, ETH_ALEN);
stats->max_frame_size = hba->netdev->mtu;
stats->txq_size = hba->max_sqes;
stats->rxq_size = hba->max_cqes;
stats->txq_avg_depth = 0;
stats->rxq_avg_depth = 0;
GET_STATS_64(hba, stats, rx_pdus);
GET_STATS_64(hba, stats, rx_bytes);
GET_STATS_64(hba, stats, tx_pdus);
GET_STATS_64(hba, stats, tx_bytes);
return 0;
}
/**
* bnx2i_cpu_online - Create a receive thread for an online CPU
*
* @cpu: cpu index for the online cpu
*/
static int bnx2i_cpu_online(unsigned int cpu)
{
struct bnx2i_percpu_s *p;
struct task_struct *thread;
p = &per_cpu(bnx2i_percpu, cpu);
thread = kthread_create_on_node(bnx2i_percpu_io_thread, (void *)p,
cpu_to_node(cpu),
"bnx2i_thread/%d", cpu);
if (IS_ERR(thread))
return PTR_ERR(thread);
/* bind thread to the cpu */
kthread_bind(thread, cpu);
p->iothread = thread;
wake_up_process(thread);
return 0;
}
static int bnx2i_cpu_offline(unsigned int cpu)
{
struct bnx2i_percpu_s *p;
struct task_struct *thread;
struct bnx2i_work *work, *tmp;
/* Prevent any new work from being queued for this CPU */
p = &per_cpu(bnx2i_percpu, cpu);
spin_lock_bh(&p->p_work_lock);
thread = p->iothread;
p->iothread = NULL;
/* Free all work in the list */
list_for_each_entry_safe(work, tmp, &p->work_list, list) {
list_del_init(&work->list);
bnx2i_process_scsi_cmd_resp(work->session,
work->bnx2i_conn, &work->cqe);
kfree(work);
}
spin_unlock_bh(&p->p_work_lock);
if (thread)
kthread_stop(thread);
return 0;
}
static enum cpuhp_state bnx2i_online_state;
/**
* bnx2i_mod_init - module init entry point
*
* initialize any driver wide global data structures such as endpoint pool,
* tcp port manager/queue, sysfs. finally driver will register itself
* with the cnic module
*/
static int __init bnx2i_mod_init(void)
{
int err;
unsigned cpu = 0;
struct bnx2i_percpu_s *p;
printk(KERN_INFO "%s", version);
if (sq_size && !is_power_of_2(sq_size))
sq_size = roundup_pow_of_two(sq_size);
bnx2i_scsi_xport_template =
iscsi_register_transport(&bnx2i_iscsi_transport);
if (!bnx2i_scsi_xport_template) {
printk(KERN_ERR "Could not register bnx2i transport.\n");
err = -ENOMEM;
goto out;
}
err = cnic_register_driver(CNIC_ULP_ISCSI, &bnx2i_cnic_cb);
if (err) {
printk(KERN_ERR "Could not register bnx2i cnic driver.\n");
goto unreg_xport;
}
/* Create percpu kernel threads to handle iSCSI I/O completions */
for_each_possible_cpu(cpu) {
p = &per_cpu(bnx2i_percpu, cpu);
INIT_LIST_HEAD(&p->work_list);
spin_lock_init(&p->p_work_lock);
p->iothread = NULL;
}
err = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "scsi/bnx2i:online",
bnx2i_cpu_online, bnx2i_cpu_offline);
if (err < 0)
goto unreg_driver;
bnx2i_online_state = err;
return 0;
unreg_driver:
cnic_unregister_driver(CNIC_ULP_ISCSI);
unreg_xport:
iscsi_unregister_transport(&bnx2i_iscsi_transport);
out:
return err;
}
/**
* bnx2i_mod_exit - module cleanup/exit entry point
*
* Global resource lock and host adapter lock is held during critical sections
* in this function. Driver will browse through the adapter list, cleans-up
* each instance, unregisters iscsi transport name and finally driver will
* unregister itself with the cnic module
*/
static void __exit bnx2i_mod_exit(void)
{
struct bnx2i_hba *hba;
mutex_lock(&bnx2i_dev_lock);
while (!list_empty(&adapter_list)) {
hba = list_entry(adapter_list.next, struct bnx2i_hba, link);
list_del(&hba->link);
adapter_count--;
if (test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic)) {
bnx2i_chip_cleanup(hba);
hba->cnic->unregister_device(hba->cnic, CNIC_ULP_ISCSI);
clear_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);
}
bnx2i_free_hba(hba);
}
mutex_unlock(&bnx2i_dev_lock);
cpuhp_remove_state(bnx2i_online_state);
iscsi_unregister_transport(&bnx2i_iscsi_transport);
cnic_unregister_driver(CNIC_ULP_ISCSI);
}
module_init(bnx2i_mod_init);
module_exit(bnx2i_mod_exit);
|
linux-master
|
drivers/scsi/bnx2i/bnx2i_init.c
|
/* bnx2fc_debug.c: QLogic Linux FCoE offload driver.
* Handles operations such as session offload/upload etc, and manages
* session resources such as connection id and qp resources.
*
* Copyright (c) 2008-2013 Broadcom Corporation
* Copyright (c) 2014-2016 QLogic Corporation
* Copyright (c) 2016-2017 Cavium Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
*/
#include "bnx2fc.h"
void BNX2FC_IO_DBG(const struct bnx2fc_cmd *io_req, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
if (likely(!(bnx2fc_debug_level & LOG_IO)))
return;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
if (io_req && io_req->port && io_req->port->lport &&
io_req->port->lport->host)
shost_printk(KERN_INFO, io_req->port->lport->host,
PFX "xid:0x%x %pV",
io_req->xid, &vaf);
else
pr_info("NULL %pV", &vaf);
va_end(args);
}
void BNX2FC_TGT_DBG(const struct bnx2fc_rport *tgt, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
if (likely(!(bnx2fc_debug_level & LOG_TGT)))
return;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
if (tgt && tgt->port && tgt->port->lport && tgt->port->lport->host &&
tgt->rport)
shost_printk(KERN_INFO, tgt->port->lport->host,
PFX "port:%x %pV",
tgt->rport->port_id, &vaf);
else
pr_info("NULL %pV", &vaf);
va_end(args);
}
void BNX2FC_HBA_DBG(const struct fc_lport *lport, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
if (likely(!(bnx2fc_debug_level & LOG_HBA)))
return;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
if (lport && lport->host)
shost_printk(KERN_INFO, lport->host, PFX "%pV", &vaf);
else
pr_info("NULL %pV", &vaf);
va_end(args);
}
|
linux-master
|
drivers/scsi/bnx2fc/bnx2fc_debug.c
|
/* bnx2fc_hwi.c: QLogic Linux FCoE offload driver.
* This file contains the code that low level functions that interact
* with 57712 FCoE firmware.
*
* Copyright (c) 2008-2013 Broadcom Corporation
* Copyright (c) 2014-2016 QLogic Corporation
* Copyright (c) 2016-2017 Cavium Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Bhanu Prakash Gollapudi ([email protected])
*/
#include "bnx2fc.h"
DECLARE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
struct fcoe_kcqe *new_cqe_kcqe);
static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
struct fcoe_kcqe *ofld_kcqe);
static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
struct fcoe_kcqe *ofld_kcqe);
static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code);
static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
struct fcoe_kcqe *destroy_kcqe);
int bnx2fc_send_stat_req(struct bnx2fc_hba *hba)
{
struct fcoe_kwqe_stat stat_req;
struct kwqe *kwqe_arr[2];
int num_kwqes = 1;
int rc = 0;
memset(&stat_req, 0x00, sizeof(struct fcoe_kwqe_stat));
stat_req.hdr.op_code = FCOE_KWQE_OPCODE_STAT;
stat_req.hdr.flags =
(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
stat_req.stat_params_addr_lo = (u32) hba->stats_buf_dma;
stat_req.stat_params_addr_hi = (u32) ((u64)hba->stats_buf_dma >> 32);
kwqe_arr[0] = (struct kwqe *) &stat_req;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
/**
* bnx2fc_send_fw_fcoe_init_msg - initiates initial handshake with FCoE f/w
*
* @hba: adapter structure pointer
*
* Send down FCoE firmware init KWQEs which initiates the initial handshake
* with the f/w.
*
*/
int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba)
{
struct fcoe_kwqe_init1 fcoe_init1;
struct fcoe_kwqe_init2 fcoe_init2;
struct fcoe_kwqe_init3 fcoe_init3;
struct kwqe *kwqe_arr[3];
int num_kwqes = 3;
int rc = 0;
if (!hba->cnic) {
printk(KERN_ERR PFX "hba->cnic NULL during fcoe fw init\n");
return -ENODEV;
}
/* fill init1 KWQE */
memset(&fcoe_init1, 0x00, sizeof(struct fcoe_kwqe_init1));
fcoe_init1.hdr.op_code = FCOE_KWQE_OPCODE_INIT1;
fcoe_init1.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
fcoe_init1.num_tasks = hba->max_tasks;
fcoe_init1.sq_num_wqes = BNX2FC_SQ_WQES_MAX;
fcoe_init1.rq_num_wqes = BNX2FC_RQ_WQES_MAX;
fcoe_init1.rq_buffer_log_size = BNX2FC_RQ_BUF_LOG_SZ;
fcoe_init1.cq_num_wqes = BNX2FC_CQ_WQES_MAX;
fcoe_init1.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma;
fcoe_init1.dummy_buffer_addr_hi = (u32) ((u64)hba->dummy_buf_dma >> 32);
fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma;
fcoe_init1.task_list_pbl_addr_hi =
(u32) ((u64) hba->task_ctx_bd_dma >> 32);
fcoe_init1.mtu = BNX2FC_MINI_JUMBO_MTU;
fcoe_init1.flags = (PAGE_SHIFT <<
FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT);
fcoe_init1.num_sessions_log = BNX2FC_NUM_MAX_SESS_LOG;
/* fill init2 KWQE */
memset(&fcoe_init2, 0x00, sizeof(struct fcoe_kwqe_init2));
fcoe_init2.hdr.op_code = FCOE_KWQE_OPCODE_INIT2;
fcoe_init2.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
fcoe_init2.hsi_major_version = FCOE_HSI_MAJOR_VERSION;
fcoe_init2.hsi_minor_version = FCOE_HSI_MINOR_VERSION;
fcoe_init2.hash_tbl_pbl_addr_lo = (u32) hba->hash_tbl_pbl_dma;
fcoe_init2.hash_tbl_pbl_addr_hi = (u32)
((u64) hba->hash_tbl_pbl_dma >> 32);
fcoe_init2.t2_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_dma;
fcoe_init2.t2_hash_tbl_addr_hi = (u32)
((u64) hba->t2_hash_tbl_dma >> 32);
fcoe_init2.t2_ptr_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_ptr_dma;
fcoe_init2.t2_ptr_hash_tbl_addr_hi = (u32)
((u64) hba->t2_hash_tbl_ptr_dma >> 32);
fcoe_init2.free_list_count = BNX2FC_NUM_MAX_SESS;
/* fill init3 KWQE */
memset(&fcoe_init3, 0x00, sizeof(struct fcoe_kwqe_init3));
fcoe_init3.hdr.op_code = FCOE_KWQE_OPCODE_INIT3;
fcoe_init3.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
fcoe_init3.error_bit_map_lo = 0xffffffff;
fcoe_init3.error_bit_map_hi = 0xffffffff;
/*
* enable both cached connection and cached tasks
* 0 = none, 1 = cached connection, 2 = cached tasks, 3 = both
*/
fcoe_init3.perf_config = 3;
kwqe_arr[0] = (struct kwqe *) &fcoe_init1;
kwqe_arr[1] = (struct kwqe *) &fcoe_init2;
kwqe_arr[2] = (struct kwqe *) &fcoe_init3;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba)
{
struct fcoe_kwqe_destroy fcoe_destroy;
struct kwqe *kwqe_arr[2];
int num_kwqes = 1;
int rc = -1;
/* fill destroy KWQE */
memset(&fcoe_destroy, 0x00, sizeof(struct fcoe_kwqe_destroy));
fcoe_destroy.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY;
fcoe_destroy.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
kwqe_arr[0] = (struct kwqe *) &fcoe_destroy;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
/**
* bnx2fc_send_session_ofld_req - initiates FCoE Session offload process
*
* @port: port structure pointer
* @tgt: bnx2fc_rport structure pointer
*/
int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
struct bnx2fc_rport *tgt)
{
struct fc_lport *lport = port->lport;
struct bnx2fc_interface *interface = port->priv;
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct bnx2fc_hba *hba = interface->hba;
struct kwqe *kwqe_arr[4];
struct fcoe_kwqe_conn_offload1 ofld_req1;
struct fcoe_kwqe_conn_offload2 ofld_req2;
struct fcoe_kwqe_conn_offload3 ofld_req3;
struct fcoe_kwqe_conn_offload4 ofld_req4;
struct fc_rport_priv *rdata = tgt->rdata;
struct fc_rport *rport = tgt->rport;
int num_kwqes = 4;
u32 port_id;
int rc = 0;
u16 conn_id;
/* Initialize offload request 1 structure */
memset(&ofld_req1, 0x00, sizeof(struct fcoe_kwqe_conn_offload1));
ofld_req1.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN1;
ofld_req1.hdr.flags =
(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
conn_id = (u16)tgt->fcoe_conn_id;
ofld_req1.fcoe_conn_id = conn_id;
ofld_req1.sq_addr_lo = (u32) tgt->sq_dma;
ofld_req1.sq_addr_hi = (u32)((u64) tgt->sq_dma >> 32);
ofld_req1.rq_pbl_addr_lo = (u32) tgt->rq_pbl_dma;
ofld_req1.rq_pbl_addr_hi = (u32)((u64) tgt->rq_pbl_dma >> 32);
ofld_req1.rq_first_pbe_addr_lo = (u32) tgt->rq_dma;
ofld_req1.rq_first_pbe_addr_hi =
(u32)((u64) tgt->rq_dma >> 32);
ofld_req1.rq_prod = 0x8000;
/* Initialize offload request 2 structure */
memset(&ofld_req2, 0x00, sizeof(struct fcoe_kwqe_conn_offload2));
ofld_req2.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN2;
ofld_req2.hdr.flags =
(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
ofld_req2.tx_max_fc_pay_len = rdata->maxframe_size;
ofld_req2.cq_addr_lo = (u32) tgt->cq_dma;
ofld_req2.cq_addr_hi = (u32)((u64)tgt->cq_dma >> 32);
ofld_req2.xferq_addr_lo = (u32) tgt->xferq_dma;
ofld_req2.xferq_addr_hi = (u32)((u64)tgt->xferq_dma >> 32);
ofld_req2.conn_db_addr_lo = (u32)tgt->conn_db_dma;
ofld_req2.conn_db_addr_hi = (u32)((u64)tgt->conn_db_dma >> 32);
/* Initialize offload request 3 structure */
memset(&ofld_req3, 0x00, sizeof(struct fcoe_kwqe_conn_offload3));
ofld_req3.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN3;
ofld_req3.hdr.flags =
(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
ofld_req3.vlan_tag = interface->vlan_id <<
FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT;
ofld_req3.vlan_tag |= 3 << FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT;
port_id = fc_host_port_id(lport->host);
if (port_id == 0) {
BNX2FC_HBA_DBG(lport, "ofld_req: port_id = 0, link down?\n");
return -EINVAL;
}
/*
* Store s_id of the initiator for further reference. This will
* be used during disable/destroy during linkdown processing as
* when the lport is reset, the port_id also is reset to 0
*/
tgt->sid = port_id;
ofld_req3.s_id[0] = (port_id & 0x000000FF);
ofld_req3.s_id[1] = (port_id & 0x0000FF00) >> 8;
ofld_req3.s_id[2] = (port_id & 0x00FF0000) >> 16;
port_id = rport->port_id;
ofld_req3.d_id[0] = (port_id & 0x000000FF);
ofld_req3.d_id[1] = (port_id & 0x0000FF00) >> 8;
ofld_req3.d_id[2] = (port_id & 0x00FF0000) >> 16;
ofld_req3.tx_total_conc_seqs = rdata->max_seq;
ofld_req3.tx_max_conc_seqs_c3 = rdata->max_seq;
ofld_req3.rx_max_fc_pay_len = lport->mfs;
ofld_req3.rx_total_conc_seqs = BNX2FC_MAX_SEQS;
ofld_req3.rx_max_conc_seqs_c3 = BNX2FC_MAX_SEQS;
ofld_req3.rx_open_seqs_exch_c3 = 1;
ofld_req3.confq_first_pbe_addr_lo = tgt->confq_dma;
ofld_req3.confq_first_pbe_addr_hi = (u32)((u64) tgt->confq_dma >> 32);
/* set mul_n_port_ids supported flag to 0, until it is supported */
ofld_req3.flags = 0;
/*
ofld_req3.flags |= (((lport->send_sp_features & FC_SP_FT_MNA) ? 1:0) <<
FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT);
*/
/* Info from PLOGI response */
ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_EDTR) ? 1 : 0) <<
FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT);
ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT);
/*
* Info from PRLI response, this info is used for sequence level error
* recovery support
*/
if (tgt->dev_type == TYPE_TAPE) {
ofld_req3.flags |= 1 <<
FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT;
ofld_req3.flags |= (((rdata->flags & FC_RP_FLAGS_REC_SUPPORTED)
? 1 : 0) <<
FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT);
}
/* vlan flag */
ofld_req3.flags |= (interface->vlan_enabled <<
FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT);
/* C2_VALID and ACK flags are not set as they are not supported */
/* Initialize offload request 4 structure */
memset(&ofld_req4, 0x00, sizeof(struct fcoe_kwqe_conn_offload4));
ofld_req4.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN4;
ofld_req4.hdr.flags =
(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
ofld_req4.e_d_tov_timer_val = lport->e_d_tov / 20;
ofld_req4.src_mac_addr_lo[0] = port->data_src_addr[5];
/* local mac */
ofld_req4.src_mac_addr_lo[1] = port->data_src_addr[4];
ofld_req4.src_mac_addr_mid[0] = port->data_src_addr[3];
ofld_req4.src_mac_addr_mid[1] = port->data_src_addr[2];
ofld_req4.src_mac_addr_hi[0] = port->data_src_addr[1];
ofld_req4.src_mac_addr_hi[1] = port->data_src_addr[0];
ofld_req4.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
/* fcf mac */
ofld_req4.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
ofld_req4.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
ofld_req4.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
ofld_req4.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
ofld_req4.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
ofld_req4.lcq_addr_lo = (u32) tgt->lcq_dma;
ofld_req4.lcq_addr_hi = (u32)((u64) tgt->lcq_dma >> 32);
ofld_req4.confq_pbl_base_addr_lo = (u32) tgt->confq_pbl_dma;
ofld_req4.confq_pbl_base_addr_hi =
(u32)((u64) tgt->confq_pbl_dma >> 32);
kwqe_arr[0] = (struct kwqe *) &ofld_req1;
kwqe_arr[1] = (struct kwqe *) &ofld_req2;
kwqe_arr[2] = (struct kwqe *) &ofld_req3;
kwqe_arr[3] = (struct kwqe *) &ofld_req4;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
/**
* bnx2fc_send_session_enable_req - initiates FCoE Session enablement
*
* @port: port structure pointer
* @tgt: bnx2fc_rport structure pointer
*/
int bnx2fc_send_session_enable_req(struct fcoe_port *port,
struct bnx2fc_rport *tgt)
{
struct kwqe *kwqe_arr[2];
struct bnx2fc_interface *interface = port->priv;
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct bnx2fc_hba *hba = interface->hba;
struct fcoe_kwqe_conn_enable_disable enbl_req;
struct fc_lport *lport = port->lport;
struct fc_rport *rport = tgt->rport;
int num_kwqes = 1;
int rc = 0;
u32 port_id;
memset(&enbl_req, 0x00,
sizeof(struct fcoe_kwqe_conn_enable_disable));
enbl_req.hdr.op_code = FCOE_KWQE_OPCODE_ENABLE_CONN;
enbl_req.hdr.flags =
(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
enbl_req.src_mac_addr_lo[0] = port->data_src_addr[5];
/* local mac */
enbl_req.src_mac_addr_lo[1] = port->data_src_addr[4];
enbl_req.src_mac_addr_mid[0] = port->data_src_addr[3];
enbl_req.src_mac_addr_mid[1] = port->data_src_addr[2];
enbl_req.src_mac_addr_hi[0] = port->data_src_addr[1];
enbl_req.src_mac_addr_hi[1] = port->data_src_addr[0];
memcpy(tgt->src_addr, port->data_src_addr, ETH_ALEN);
enbl_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
enbl_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
enbl_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
enbl_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
enbl_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
enbl_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
port_id = fc_host_port_id(lport->host);
if (port_id != tgt->sid) {
printk(KERN_ERR PFX "WARN: enable_req port_id = 0x%x,"
"sid = 0x%x\n", port_id, tgt->sid);
port_id = tgt->sid;
}
enbl_req.s_id[0] = (port_id & 0x000000FF);
enbl_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
enbl_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
port_id = rport->port_id;
enbl_req.d_id[0] = (port_id & 0x000000FF);
enbl_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
enbl_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
enbl_req.vlan_tag = interface->vlan_id <<
FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
enbl_req.vlan_tag |= 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
enbl_req.vlan_flag = interface->vlan_enabled;
enbl_req.context_id = tgt->context_id;
enbl_req.conn_id = tgt->fcoe_conn_id;
kwqe_arr[0] = (struct kwqe *) &enbl_req;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
/**
* bnx2fc_send_session_disable_req - initiates FCoE Session disable
*
* @port: port structure pointer
* @tgt: bnx2fc_rport structure pointer
*/
int bnx2fc_send_session_disable_req(struct fcoe_port *port,
struct bnx2fc_rport *tgt)
{
struct bnx2fc_interface *interface = port->priv;
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct bnx2fc_hba *hba = interface->hba;
struct fcoe_kwqe_conn_enable_disable disable_req;
struct kwqe *kwqe_arr[2];
struct fc_rport *rport = tgt->rport;
int num_kwqes = 1;
int rc = 0;
u32 port_id;
memset(&disable_req, 0x00,
sizeof(struct fcoe_kwqe_conn_enable_disable));
disable_req.hdr.op_code = FCOE_KWQE_OPCODE_DISABLE_CONN;
disable_req.hdr.flags =
(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
disable_req.src_mac_addr_lo[0] = tgt->src_addr[5];
disable_req.src_mac_addr_lo[1] = tgt->src_addr[4];
disable_req.src_mac_addr_mid[0] = tgt->src_addr[3];
disable_req.src_mac_addr_mid[1] = tgt->src_addr[2];
disable_req.src_mac_addr_hi[0] = tgt->src_addr[1];
disable_req.src_mac_addr_hi[1] = tgt->src_addr[0];
disable_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
disable_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
disable_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
disable_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
disable_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
disable_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
port_id = tgt->sid;
disable_req.s_id[0] = (port_id & 0x000000FF);
disable_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
disable_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
port_id = rport->port_id;
disable_req.d_id[0] = (port_id & 0x000000FF);
disable_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
disable_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
disable_req.context_id = tgt->context_id;
disable_req.conn_id = tgt->fcoe_conn_id;
disable_req.vlan_tag = interface->vlan_id <<
FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
disable_req.vlan_tag |=
3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
disable_req.vlan_flag = interface->vlan_enabled;
kwqe_arr[0] = (struct kwqe *) &disable_req;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
/**
* bnx2fc_send_session_destroy_req - initiates FCoE Session destroy
*
* @hba: adapter structure pointer
* @tgt: bnx2fc_rport structure pointer
*/
int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
struct bnx2fc_rport *tgt)
{
struct fcoe_kwqe_conn_destroy destroy_req;
struct kwqe *kwqe_arr[2];
int num_kwqes = 1;
int rc = 0;
memset(&destroy_req, 0x00, sizeof(struct fcoe_kwqe_conn_destroy));
destroy_req.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY_CONN;
destroy_req.hdr.flags =
(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
destroy_req.context_id = tgt->context_id;
destroy_req.conn_id = tgt->fcoe_conn_id;
kwqe_arr[0] = (struct kwqe *) &destroy_req;
if (hba->cnic && hba->cnic->submit_kwqes)
rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
return rc;
}
static bool is_valid_lport(struct bnx2fc_hba *hba, struct fc_lport *lport)
{
struct bnx2fc_lport *blport;
spin_lock_bh(&hba->hba_lock);
list_for_each_entry(blport, &hba->vports, list) {
if (blport->lport == lport) {
spin_unlock_bh(&hba->hba_lock);
return true;
}
}
spin_unlock_bh(&hba->hba_lock);
return false;
}
static void bnx2fc_unsol_els_work(struct work_struct *work)
{
struct bnx2fc_unsol_els *unsol_els;
struct fc_lport *lport;
struct bnx2fc_hba *hba;
struct fc_frame *fp;
unsol_els = container_of(work, struct bnx2fc_unsol_els, unsol_els_work);
lport = unsol_els->lport;
fp = unsol_els->fp;
hba = unsol_els->hba;
if (is_valid_lport(hba, lport))
fc_exch_recv(lport, fp);
kfree(unsol_els);
}
void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
unsigned char *buf,
u32 frame_len, u16 l2_oxid)
{
struct fcoe_port *port = tgt->port;
struct fc_lport *lport = port->lport;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_unsol_els *unsol_els;
struct fc_frame_header *fh;
struct fc_frame *fp;
struct sk_buff *skb;
u32 payload_len;
u32 crc;
u8 op;
unsol_els = kzalloc(sizeof(*unsol_els), GFP_ATOMIC);
if (!unsol_els) {
BNX2FC_TGT_DBG(tgt, "Unable to allocate unsol_work\n");
return;
}
BNX2FC_TGT_DBG(tgt, "l2_frame_compl l2_oxid = 0x%x, frame_len = %d\n",
l2_oxid, frame_len);
payload_len = frame_len - sizeof(struct fc_frame_header);
fp = fc_frame_alloc(lport, payload_len);
if (!fp) {
printk(KERN_ERR PFX "fc_frame_alloc failure\n");
kfree(unsol_els);
return;
}
fh = (struct fc_frame_header *) fc_frame_header_get(fp);
/* Copy FC Frame header and payload into the frame */
memcpy(fh, buf, frame_len);
if (l2_oxid != FC_XID_UNKNOWN)
fh->fh_ox_id = htons(l2_oxid);
skb = fp_skb(fp);
if ((fh->fh_r_ctl == FC_RCTL_ELS_REQ) ||
(fh->fh_r_ctl == FC_RCTL_ELS_REP)) {
if (fh->fh_type == FC_TYPE_ELS) {
op = fc_frame_payload_op(fp);
if ((op == ELS_TEST) || (op == ELS_ESTC) ||
(op == ELS_FAN) || (op == ELS_CSU)) {
/*
* No need to reply for these
* ELS requests
*/
printk(KERN_ERR PFX "dropping ELS 0x%x\n", op);
kfree_skb(skb);
kfree(unsol_els);
return;
}
}
crc = fcoe_fc_crc(fp);
fc_frame_init(fp);
fr_dev(fp) = lport;
fr_sof(fp) = FC_SOF_I3;
fr_eof(fp) = FC_EOF_T;
fr_crc(fp) = cpu_to_le32(~crc);
unsol_els->lport = lport;
unsol_els->hba = interface->hba;
unsol_els->fp = fp;
INIT_WORK(&unsol_els->unsol_els_work, bnx2fc_unsol_els_work);
queue_work(bnx2fc_wq, &unsol_els->unsol_els_work);
} else {
BNX2FC_HBA_DBG(lport, "fh_r_ctl = 0x%x\n", fh->fh_r_ctl);
kfree_skb(skb);
kfree(unsol_els);
}
}
static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
{
u8 num_rq;
struct fcoe_err_report_entry *err_entry;
unsigned char *rq_data;
unsigned char *buf = NULL, *buf1;
int i;
u16 xid;
u32 frame_len, len;
struct bnx2fc_cmd *io_req = NULL;
struct bnx2fc_interface *interface = tgt->port->priv;
struct bnx2fc_hba *hba = interface->hba;
int rc = 0;
u64 err_warn_bit_map;
u8 err_warn = 0xff;
BNX2FC_TGT_DBG(tgt, "Entered UNSOL COMPLETION wqe = 0x%x\n", wqe);
switch (wqe & FCOE_UNSOLICITED_CQE_SUBTYPE) {
case FCOE_UNSOLICITED_FRAME_CQE_TYPE:
frame_len = (wqe & FCOE_UNSOLICITED_CQE_PKT_LEN) >>
FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT;
num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ;
spin_lock_bh(&tgt->tgt_lock);
rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq);
spin_unlock_bh(&tgt->tgt_lock);
if (rq_data) {
buf = rq_data;
} else {
buf1 = buf = kmalloc((num_rq * BNX2FC_RQ_BUF_SZ),
GFP_ATOMIC);
if (!buf1) {
BNX2FC_TGT_DBG(tgt, "Memory alloc failure\n");
break;
}
for (i = 0; i < num_rq; i++) {
spin_lock_bh(&tgt->tgt_lock);
rq_data = (unsigned char *)
bnx2fc_get_next_rqe(tgt, 1);
spin_unlock_bh(&tgt->tgt_lock);
len = BNX2FC_RQ_BUF_SZ;
memcpy(buf1, rq_data, len);
buf1 += len;
}
}
bnx2fc_process_l2_frame_compl(tgt, buf, frame_len,
FC_XID_UNKNOWN);
if (buf != rq_data)
kfree(buf);
spin_lock_bh(&tgt->tgt_lock);
bnx2fc_return_rqe(tgt, num_rq);
spin_unlock_bh(&tgt->tgt_lock);
break;
case FCOE_ERROR_DETECTION_CQE_TYPE:
/*
* In case of error reporting CQE a single RQ entry
* is consumed.
*/
spin_lock_bh(&tgt->tgt_lock);
num_rq = 1;
err_entry = (struct fcoe_err_report_entry *)
bnx2fc_get_next_rqe(tgt, 1);
xid = err_entry->fc_hdr.ox_id;
BNX2FC_TGT_DBG(tgt, "Unsol Error Frame OX_ID = 0x%x\n", xid);
BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x\n",
err_entry->data.err_warn_bitmap_hi,
err_entry->data.err_warn_bitmap_lo);
BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x\n",
err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
if (xid > hba->max_xid) {
BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n",
xid);
goto ret_err_rqe;
}
io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
if (!io_req)
goto ret_err_rqe;
if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
goto ret_err_rqe;
}
if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP,
&io_req->req_flags)) {
BNX2FC_IO_DBG(io_req, "unsol_err: cleanup in "
"progress.. ignore unsol err\n");
goto ret_err_rqe;
}
err_warn_bit_map = (u64)
((u64)err_entry->data.err_warn_bitmap_hi << 32) |
(u64)err_entry->data.err_warn_bitmap_lo;
for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
if (err_warn_bit_map & (u64)((u64)1 << i)) {
err_warn = i;
break;
}
}
/*
* If ABTS is already in progress, and FW error is
* received after that, do not cancel the timeout_work
* and let the error recovery continue by explicitly
* logging out the target, when the ABTS eventually
* times out.
*/
if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
printk(KERN_ERR PFX "err_warn: io_req (0x%x) already "
"in ABTS processing\n", xid);
goto ret_err_rqe;
}
BNX2FC_TGT_DBG(tgt, "err = 0x%x\n", err_warn);
if (tgt->dev_type != TYPE_TAPE)
goto skip_rec;
switch (err_warn) {
case FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION:
case FCOE_ERROR_CODE_DATA_OOO_RO:
case FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT:
case FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET:
case FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ:
case FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET:
BNX2FC_TGT_DBG(tgt, "REC TOV popped for xid - 0x%x\n",
xid);
memcpy(&io_req->err_entry, err_entry,
sizeof(struct fcoe_err_report_entry));
if (!test_bit(BNX2FC_FLAG_SRR_SENT,
&io_req->req_flags)) {
spin_unlock_bh(&tgt->tgt_lock);
rc = bnx2fc_send_rec(io_req);
spin_lock_bh(&tgt->tgt_lock);
if (rc)
goto skip_rec;
} else
printk(KERN_ERR PFX "SRR in progress\n");
goto ret_err_rqe;
default:
break;
}
skip_rec:
set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags);
/*
* Cancel the timeout_work, as we received IO
* completion with FW error.
*/
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount, bnx2fc_cmd_release);
rc = bnx2fc_initiate_abts(io_req);
if (rc != SUCCESS) {
printk(KERN_ERR PFX "err_warn: initiate_abts "
"failed xid = 0x%x. issue cleanup\n",
io_req->xid);
bnx2fc_initiate_cleanup(io_req);
}
ret_err_rqe:
bnx2fc_return_rqe(tgt, 1);
spin_unlock_bh(&tgt->tgt_lock);
break;
case FCOE_WARNING_DETECTION_CQE_TYPE:
/*
*In case of warning reporting CQE a single RQ entry
* is consumes.
*/
spin_lock_bh(&tgt->tgt_lock);
num_rq = 1;
err_entry = (struct fcoe_err_report_entry *)
bnx2fc_get_next_rqe(tgt, 1);
xid = cpu_to_be16(err_entry->fc_hdr.ox_id);
BNX2FC_TGT_DBG(tgt, "Unsol Warning Frame OX_ID = 0x%x\n", xid);
BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x",
err_entry->data.err_warn_bitmap_hi,
err_entry->data.err_warn_bitmap_lo);
BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x",
err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
if (xid > hba->max_xid) {
BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n", xid);
goto ret_warn_rqe;
}
err_warn_bit_map = (u64)
((u64)err_entry->data.err_warn_bitmap_hi << 32) |
(u64)err_entry->data.err_warn_bitmap_lo;
for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
if (err_warn_bit_map & ((u64)1 << i)) {
err_warn = i;
break;
}
}
BNX2FC_TGT_DBG(tgt, "warn = 0x%x\n", err_warn);
io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
if (!io_req)
goto ret_warn_rqe;
if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
goto ret_warn_rqe;
}
memcpy(&io_req->err_entry, err_entry,
sizeof(struct fcoe_err_report_entry));
if (err_warn == FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION)
/* REC_TOV is not a warning code */
BUG_ON(1);
else
BNX2FC_TGT_DBG(tgt, "Unsolicited warning\n");
ret_warn_rqe:
bnx2fc_return_rqe(tgt, 1);
spin_unlock_bh(&tgt->tgt_lock);
break;
default:
printk(KERN_ERR PFX "Unsol Compl: Invalid CQE Subtype\n");
break;
}
}
void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe,
unsigned char *rq_data, u8 num_rq,
struct fcoe_task_ctx_entry *task)
{
struct fcoe_port *port = tgt->port;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct bnx2fc_cmd *io_req;
u16 xid;
u8 cmd_type;
u8 rx_state = 0;
spin_lock_bh(&tgt->tgt_lock);
xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
if (io_req == NULL) {
printk(KERN_ERR PFX "ERROR? cq_compl - io_req is NULL\n");
spin_unlock_bh(&tgt->tgt_lock);
return;
}
/* Timestamp IO completion time */
cmd_type = io_req->cmd_type;
rx_state = ((task->rxwr_txrd.var_ctx.rx_flags &
FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE) >>
FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE_SHIFT);
/* Process other IO completion types */
switch (cmd_type) {
case BNX2FC_SCSI_CMD:
if (rx_state == FCOE_TASK_RX_STATE_COMPLETED) {
bnx2fc_process_scsi_cmd_compl(io_req, task, num_rq,
rq_data);
spin_unlock_bh(&tgt->tgt_lock);
return;
}
if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
bnx2fc_process_abts_compl(io_req, task, num_rq);
else if (rx_state ==
FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
bnx2fc_process_cleanup_compl(io_req, task, num_rq);
else
printk(KERN_ERR PFX "Invalid rx state - %d\n",
rx_state);
break;
case BNX2FC_TASK_MGMT_CMD:
BNX2FC_IO_DBG(io_req, "Processing TM complete\n");
bnx2fc_process_tm_compl(io_req, task, num_rq, rq_data);
break;
case BNX2FC_ABTS:
/*
* ABTS request received by firmware. ABTS response
* will be delivered to the task belonging to the IO
* that was aborted
*/
BNX2FC_IO_DBG(io_req, "cq_compl- ABTS sent out by fw\n");
kref_put(&io_req->refcount, bnx2fc_cmd_release);
break;
case BNX2FC_ELS:
if (rx_state == FCOE_TASK_RX_STATE_COMPLETED)
bnx2fc_process_els_compl(io_req, task, num_rq);
else if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
bnx2fc_process_abts_compl(io_req, task, num_rq);
else if (rx_state ==
FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
bnx2fc_process_cleanup_compl(io_req, task, num_rq);
else
printk(KERN_ERR PFX "Invalid rx state = %d\n",
rx_state);
break;
case BNX2FC_CLEANUP:
BNX2FC_IO_DBG(io_req, "cq_compl- cleanup resp rcvd\n");
kref_put(&io_req->refcount, bnx2fc_cmd_release);
break;
case BNX2FC_SEQ_CLEANUP:
BNX2FC_IO_DBG(io_req, "cq_compl(0x%x) - seq cleanup resp\n",
io_req->xid);
bnx2fc_process_seq_cleanup_compl(io_req, task, rx_state);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
break;
default:
printk(KERN_ERR PFX "Invalid cmd_type %d\n", cmd_type);
break;
}
spin_unlock_bh(&tgt->tgt_lock);
}
void bnx2fc_arm_cq(struct bnx2fc_rport *tgt)
{
struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db;
u32 msg;
wmb();
rx_db->doorbell_cq_cons = tgt->cq_cons_idx | (tgt->cq_curr_toggle_bit <<
FCOE_CQE_TOGGLE_BIT_SHIFT);
msg = *((u32 *)rx_db);
writel(cpu_to_le32(msg), tgt->ctx_base);
}
static struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe,
unsigned char *rq_data, u8 num_rq,
struct fcoe_task_ctx_entry *task)
{
struct bnx2fc_work *work;
work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC);
if (!work)
return NULL;
INIT_LIST_HEAD(&work->list);
work->tgt = tgt;
work->wqe = wqe;
work->num_rq = num_rq;
work->task = task;
if (rq_data)
memcpy(work->rq_data, rq_data, BNX2FC_RQ_BUF_SZ);
return work;
}
/* Pending work request completion */
static bool bnx2fc_pending_work(struct bnx2fc_rport *tgt, unsigned int wqe)
{
unsigned int cpu = wqe % num_possible_cpus();
struct bnx2fc_percpu_s *fps;
struct bnx2fc_work *work;
struct fcoe_task_ctx_entry *task;
struct fcoe_task_ctx_entry *task_page;
struct fcoe_port *port = tgt->port;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
unsigned char *rq_data = NULL;
unsigned char rq_data_buff[BNX2FC_RQ_BUF_SZ];
int task_idx, index;
u16 xid;
u8 num_rq;
int i;
xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
if (xid >= hba->max_tasks) {
pr_err(PFX "ERROR:xid out of range\n");
return false;
}
task_idx = xid / BNX2FC_TASKS_PER_PAGE;
index = xid % BNX2FC_TASKS_PER_PAGE;
task_page = (struct fcoe_task_ctx_entry *)hba->task_ctx[task_idx];
task = &task_page[index];
num_rq = ((task->rxwr_txrd.var_ctx.rx_flags &
FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE) >>
FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE_SHIFT);
memset(rq_data_buff, 0, BNX2FC_RQ_BUF_SZ);
if (!num_rq)
goto num_rq_zero;
rq_data = bnx2fc_get_next_rqe(tgt, 1);
if (num_rq > 1) {
/* We do not need extra sense data */
for (i = 1; i < num_rq; i++)
bnx2fc_get_next_rqe(tgt, 1);
}
if (rq_data)
memcpy(rq_data_buff, rq_data, BNX2FC_RQ_BUF_SZ);
/* return RQ entries */
for (i = 0; i < num_rq; i++)
bnx2fc_return_rqe(tgt, 1);
num_rq_zero:
fps = &per_cpu(bnx2fc_percpu, cpu);
spin_lock_bh(&fps->fp_work_lock);
if (fps->iothread) {
work = bnx2fc_alloc_work(tgt, wqe, rq_data_buff,
num_rq, task);
if (work) {
list_add_tail(&work->list, &fps->work_list);
wake_up_process(fps->iothread);
spin_unlock_bh(&fps->fp_work_lock);
return true;
}
}
spin_unlock_bh(&fps->fp_work_lock);
bnx2fc_process_cq_compl(tgt, wqe,
rq_data_buff, num_rq, task);
return true;
}
int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt)
{
struct fcoe_cqe *cq;
u32 cq_cons;
struct fcoe_cqe *cqe;
u32 num_free_sqes = 0;
u32 num_cqes = 0;
u16 wqe;
/*
* cq_lock is a low contention lock used to protect
* the CQ data structure from being freed up during
* the upload operation
*/
spin_lock_bh(&tgt->cq_lock);
if (!tgt->cq) {
printk(KERN_ERR PFX "process_new_cqes: cq is NULL\n");
spin_unlock_bh(&tgt->cq_lock);
return 0;
}
cq = tgt->cq;
cq_cons = tgt->cq_cons_idx;
cqe = &cq[cq_cons];
while (((wqe = cqe->wqe) & FCOE_CQE_TOGGLE_BIT) ==
(tgt->cq_curr_toggle_bit <<
FCOE_CQE_TOGGLE_BIT_SHIFT)) {
/* new entry on the cq */
if (wqe & FCOE_CQE_CQE_TYPE) {
/* Unsolicited event notification */
bnx2fc_process_unsol_compl(tgt, wqe);
} else {
if (bnx2fc_pending_work(tgt, wqe))
num_free_sqes++;
}
cqe++;
tgt->cq_cons_idx++;
num_cqes++;
if (tgt->cq_cons_idx == BNX2FC_CQ_WQES_MAX) {
tgt->cq_cons_idx = 0;
cqe = cq;
tgt->cq_curr_toggle_bit =
1 - tgt->cq_curr_toggle_bit;
}
}
if (num_cqes) {
/* Arm CQ only if doorbell is mapped */
if (tgt->ctx_base)
bnx2fc_arm_cq(tgt);
atomic_add(num_free_sqes, &tgt->free_sqes);
}
spin_unlock_bh(&tgt->cq_lock);
return 0;
}
/**
* bnx2fc_fastpath_notification - process global event queue (KCQ)
*
* @hba: adapter structure pointer
* @new_cqe_kcqe: pointer to newly DMA'd KCQ entry
*
* Fast path event notification handler
*/
static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
struct fcoe_kcqe *new_cqe_kcqe)
{
u32 conn_id = new_cqe_kcqe->fcoe_conn_id;
struct bnx2fc_rport *tgt = hba->tgt_ofld_list[conn_id];
if (!tgt) {
printk(KERN_ERR PFX "conn_id 0x%x not valid\n", conn_id);
return;
}
bnx2fc_process_new_cqes(tgt);
}
/**
* bnx2fc_process_ofld_cmpl - process FCoE session offload completion
*
* @hba: adapter structure pointer
* @ofld_kcqe: connection offload kcqe pointer
*
* handle session offload completion, enable the session if offload is
* successful.
*/
static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
struct fcoe_kcqe *ofld_kcqe)
{
struct bnx2fc_rport *tgt;
struct bnx2fc_interface *interface;
u32 conn_id;
u32 context_id;
conn_id = ofld_kcqe->fcoe_conn_id;
context_id = ofld_kcqe->fcoe_conn_context_id;
tgt = hba->tgt_ofld_list[conn_id];
if (!tgt) {
printk(KERN_ALERT PFX "ERROR:ofld_cmpl: No pending ofld req\n");
return;
}
BNX2FC_TGT_DBG(tgt, "Entered ofld compl - context_id = 0x%x\n",
ofld_kcqe->fcoe_conn_context_id);
interface = tgt->port->priv;
if (hba != interface->hba) {
printk(KERN_ERR PFX "ERROR:ofld_cmpl: HBA mismatch\n");
goto ofld_cmpl_err;
}
/*
* cnic has allocated a context_id for this session; use this
* while enabling the session.
*/
tgt->context_id = context_id;
if (ofld_kcqe->completion_status) {
if (ofld_kcqe->completion_status ==
FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) {
printk(KERN_ERR PFX "unable to allocate FCoE context "
"resources\n");
set_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE, &tgt->flags);
}
} else {
/* FW offload request successfully completed */
set_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
}
ofld_cmpl_err:
set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
wake_up_interruptible(&tgt->ofld_wait);
}
/**
* bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion
*
* @hba: adapter structure pointer
* @ofld_kcqe: connection offload kcqe pointer
*
* handle session enable completion, mark the rport as ready
*/
static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
struct fcoe_kcqe *ofld_kcqe)
{
struct bnx2fc_rport *tgt;
struct bnx2fc_interface *interface;
u32 conn_id;
u32 context_id;
context_id = ofld_kcqe->fcoe_conn_context_id;
conn_id = ofld_kcqe->fcoe_conn_id;
tgt = hba->tgt_ofld_list[conn_id];
if (!tgt) {
printk(KERN_ERR PFX "ERROR:enbl_cmpl: No pending ofld req\n");
return;
}
BNX2FC_TGT_DBG(tgt, "Enable compl - context_id = 0x%x\n",
ofld_kcqe->fcoe_conn_context_id);
/*
* context_id should be the same for this target during offload
* and enable
*/
if (tgt->context_id != context_id) {
printk(KERN_ERR PFX "context id mismatch\n");
return;
}
interface = tgt->port->priv;
if (hba != interface->hba) {
printk(KERN_ERR PFX "bnx2fc-enbl_cmpl: HBA mismatch\n");
goto enbl_cmpl_err;
}
if (!ofld_kcqe->completion_status)
/* enable successful - rport ready for issuing IOs */
set_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
enbl_cmpl_err:
set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
wake_up_interruptible(&tgt->ofld_wait);
}
static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba,
struct fcoe_kcqe *disable_kcqe)
{
struct bnx2fc_rport *tgt;
u32 conn_id;
conn_id = disable_kcqe->fcoe_conn_id;
tgt = hba->tgt_ofld_list[conn_id];
if (!tgt) {
printk(KERN_ERR PFX "ERROR: disable_cmpl: No disable req\n");
return;
}
BNX2FC_TGT_DBG(tgt, PFX "disable_cmpl: conn_id %d\n", conn_id);
if (disable_kcqe->completion_status) {
printk(KERN_ERR PFX "Disable failed with cmpl status %d\n",
disable_kcqe->completion_status);
set_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags);
set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
wake_up_interruptible(&tgt->upld_wait);
} else {
/* disable successful */
BNX2FC_TGT_DBG(tgt, "disable successful\n");
clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
set_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
wake_up_interruptible(&tgt->upld_wait);
}
}
static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
struct fcoe_kcqe *destroy_kcqe)
{
struct bnx2fc_rport *tgt;
u32 conn_id;
conn_id = destroy_kcqe->fcoe_conn_id;
tgt = hba->tgt_ofld_list[conn_id];
if (!tgt) {
printk(KERN_ERR PFX "destroy_cmpl: No destroy req\n");
return;
}
BNX2FC_TGT_DBG(tgt, "destroy_cmpl: conn_id %d\n", conn_id);
if (destroy_kcqe->completion_status) {
printk(KERN_ERR PFX "Destroy conn failed, cmpl status %d\n",
destroy_kcqe->completion_status);
return;
} else {
/* destroy successful */
BNX2FC_TGT_DBG(tgt, "upload successful\n");
clear_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
set_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags);
set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
wake_up_interruptible(&tgt->upld_wait);
}
}
static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code)
{
switch (err_code) {
case FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE:
printk(KERN_ERR PFX "init_failure due to invalid opcode\n");
break;
case FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE:
printk(KERN_ERR PFX "init failed due to ctx alloc failure\n");
break;
case FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR:
printk(KERN_ERR PFX "init_failure due to NIC error\n");
break;
case FCOE_KCQE_COMPLETION_STATUS_ERROR:
printk(KERN_ERR PFX "init failure due to compl status err\n");
break;
case FCOE_KCQE_COMPLETION_STATUS_WRONG_HSI_VERSION:
printk(KERN_ERR PFX "init failure due to HSI mismatch\n");
break;
default:
printk(KERN_ERR PFX "Unknown Error code %d\n", err_code);
}
}
/**
* bnx2fc_indicate_kcqe() - process KCQE
*
* @context: adapter structure pointer
* @kcq: kcqe pointer
* @num_cqe: Number of completion queue elements
*
* Generic KCQ event handler
*/
void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
u32 num_cqe)
{
struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
int i = 0;
struct fcoe_kcqe *kcqe = NULL;
while (i < num_cqe) {
kcqe = (struct fcoe_kcqe *) kcq[i++];
switch (kcqe->op_code) {
case FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION:
bnx2fc_fastpath_notification(hba, kcqe);
break;
case FCOE_KCQE_OPCODE_OFFLOAD_CONN:
bnx2fc_process_ofld_cmpl(hba, kcqe);
break;
case FCOE_KCQE_OPCODE_ENABLE_CONN:
bnx2fc_process_enable_conn_cmpl(hba, kcqe);
break;
case FCOE_KCQE_OPCODE_INIT_FUNC:
if (kcqe->completion_status !=
FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
bnx2fc_init_failure(hba,
kcqe->completion_status);
} else {
set_bit(ADAPTER_STATE_UP, &hba->adapter_state);
bnx2fc_get_link_state(hba);
printk(KERN_INFO PFX "[%.2x]: FCOE_INIT passed\n",
(u8)hba->pcidev->bus->number);
}
break;
case FCOE_KCQE_OPCODE_DESTROY_FUNC:
if (kcqe->completion_status !=
FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
printk(KERN_ERR PFX "DESTROY failed\n");
} else {
printk(KERN_ERR PFX "DESTROY success\n");
}
set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
wake_up_interruptible(&hba->destroy_wait);
break;
case FCOE_KCQE_OPCODE_DISABLE_CONN:
bnx2fc_process_conn_disable_cmpl(hba, kcqe);
break;
case FCOE_KCQE_OPCODE_DESTROY_CONN:
bnx2fc_process_conn_destroy_cmpl(hba, kcqe);
break;
case FCOE_KCQE_OPCODE_STAT_FUNC:
if (kcqe->completion_status !=
FCOE_KCQE_COMPLETION_STATUS_SUCCESS)
printk(KERN_ERR PFX "STAT failed\n");
complete(&hba->stat_req_done);
break;
case FCOE_KCQE_OPCODE_FCOE_ERROR:
default:
printk(KERN_ERR PFX "unknown opcode 0x%x\n",
kcqe->op_code);
}
}
}
void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid)
{
struct fcoe_sqe *sqe;
sqe = &tgt->sq[tgt->sq_prod_idx];
/* Fill SQ WQE */
sqe->wqe = xid << FCOE_SQE_TASK_ID_SHIFT;
sqe->wqe |= tgt->sq_curr_toggle_bit << FCOE_SQE_TOGGLE_BIT_SHIFT;
/* Advance SQ Prod Idx */
if (++tgt->sq_prod_idx == BNX2FC_SQ_WQES_MAX) {
tgt->sq_prod_idx = 0;
tgt->sq_curr_toggle_bit = 1 - tgt->sq_curr_toggle_bit;
}
}
void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt)
{
struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db;
u32 msg;
wmb();
sq_db->prod = tgt->sq_prod_idx |
(tgt->sq_curr_toggle_bit << 15);
msg = *((u32 *)sq_db);
writel(cpu_to_le32(msg), tgt->ctx_base);
}
int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt)
{
u32 context_id = tgt->context_id;
struct fcoe_port *port = tgt->port;
u32 reg_off;
resource_size_t reg_base;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
reg_base = pci_resource_start(hba->pcidev,
BNX2X_DOORBELL_PCI_BAR);
reg_off = (1 << BNX2X_DB_SHIFT) * (context_id & 0x1FFFF);
tgt->ctx_base = ioremap(reg_base + reg_off, 4);
if (!tgt->ctx_base)
return -ENOMEM;
return 0;
}
char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items)
{
char *buf = (char *)tgt->rq + (tgt->rq_cons_idx * BNX2FC_RQ_BUF_SZ);
if (tgt->rq_cons_idx + num_items > BNX2FC_RQ_WQES_MAX)
return NULL;
tgt->rq_cons_idx += num_items;
if (tgt->rq_cons_idx >= BNX2FC_RQ_WQES_MAX)
tgt->rq_cons_idx -= BNX2FC_RQ_WQES_MAX;
return buf;
}
void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items)
{
/* return the rq buffer */
u32 next_prod_idx = tgt->rq_prod_idx + num_items;
if ((next_prod_idx & 0x7fff) == BNX2FC_RQ_WQES_MAX) {
/* Wrap around RQ */
next_prod_idx += 0x8000 - BNX2FC_RQ_WQES_MAX;
}
tgt->rq_prod_idx = next_prod_idx;
tgt->conn_db->rq_prod = tgt->rq_prod_idx;
}
void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnp_req,
struct fcoe_task_ctx_entry *task,
struct bnx2fc_cmd *orig_io_req,
u32 offset)
{
struct scsi_cmnd *sc_cmd = orig_io_req->sc_cmd;
struct bnx2fc_rport *tgt = seq_clnp_req->tgt;
struct fcoe_bd_ctx *bd = orig_io_req->bd_tbl->bd_tbl;
struct fcoe_ext_mul_sges_ctx *sgl;
u8 task_type = FCOE_TASK_TYPE_SEQUENCE_CLEANUP;
u8 orig_task_type;
u16 orig_xid = orig_io_req->xid;
u32 context_id = tgt->context_id;
u64 phys_addr = (u64)orig_io_req->bd_tbl->bd_tbl_dma;
u32 orig_offset = offset;
int bd_count;
int i;
memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
orig_task_type = FCOE_TASK_TYPE_WRITE;
else
orig_task_type = FCOE_TASK_TYPE_READ;
/* Tx flags */
task->txwr_rxrd.const_ctx.tx_flags =
FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP <<
FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
/* init flags */
task->txwr_rxrd.const_ctx.init_flags = task_type <<
FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
task->rxwr_txrd.const_ctx.init_flags = context_id <<
FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
task->rxwr_txrd.const_ctx.init_flags = context_id <<
FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_seq_cnt = 0;
task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_data_offset = offset;
bd_count = orig_io_req->bd_tbl->bd_valid;
/* obtain the appropriate bd entry from relative offset */
for (i = 0; i < bd_count; i++) {
if (offset < bd[i].buf_len)
break;
offset -= bd[i].buf_len;
}
phys_addr += (i * sizeof(struct fcoe_bd_ctx));
if (orig_task_type == FCOE_TASK_TYPE_WRITE) {
task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
(u32)phys_addr;
task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
(u32)((u64)phys_addr >> 32);
task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
bd_count;
task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_off =
offset; /* adjusted offset */
task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_idx = i;
} else {
/* Multiple SGEs were used for this IO */
sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
sgl->mul_sgl.cur_sge_addr.lo = (u32)phys_addr;
sgl->mul_sgl.cur_sge_addr.hi = (u32)((u64)phys_addr >> 32);
sgl->mul_sgl.sgl_size = bd_count;
sgl->mul_sgl.cur_sge_off = offset; /*adjusted offset */
sgl->mul_sgl.cur_sge_idx = i;
memset(&task->rxwr_only.rx_seq_ctx, 0,
sizeof(struct fcoe_rx_seq_ctx));
task->rxwr_only.rx_seq_ctx.low_exp_ro = orig_offset;
task->rxwr_only.rx_seq_ctx.high_exp_ro = orig_offset;
}
}
void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
struct fcoe_task_ctx_entry *task,
u16 orig_xid)
{
u8 task_type = FCOE_TASK_TYPE_EXCHANGE_CLEANUP;
struct bnx2fc_rport *tgt = io_req->tgt;
u32 context_id = tgt->context_id;
memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
/* Tx Write Rx Read */
/* init flags */
task->txwr_rxrd.const_ctx.init_flags = task_type <<
FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
if (tgt->dev_type == TYPE_TAPE)
task->txwr_rxrd.const_ctx.init_flags |=
FCOE_TASK_DEV_TYPE_TAPE <<
FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
else
task->txwr_rxrd.const_ctx.init_flags |=
FCOE_TASK_DEV_TYPE_DISK <<
FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
/* Tx flags */
task->txwr_rxrd.const_ctx.tx_flags =
FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP <<
FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
/* Rx Read Tx Write */
task->rxwr_txrd.const_ctx.init_flags = context_id <<
FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
}
void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
struct fcoe_task_ctx_entry *task)
{
struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
struct bnx2fc_rport *tgt = io_req->tgt;
struct fc_frame_header *fc_hdr;
struct fcoe_ext_mul_sges_ctx *sgl;
u8 task_type = 0;
u64 *hdr;
u64 temp_hdr[3];
u32 context_id;
/* Obtain task_type */
if ((io_req->cmd_type == BNX2FC_TASK_MGMT_CMD) ||
(io_req->cmd_type == BNX2FC_ELS)) {
task_type = FCOE_TASK_TYPE_MIDPATH;
} else if (io_req->cmd_type == BNX2FC_ABTS) {
task_type = FCOE_TASK_TYPE_ABTS;
}
memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
/* Setup the task from io_req for easy reference */
io_req->task = task;
BNX2FC_IO_DBG(io_req, "Init MP task for cmd_type = %d task_type = %d\n",
io_req->cmd_type, task_type);
/* Tx only */
if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
(task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
(u32)mp_req->mp_req_bd_dma;
task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
(u32)((u64)mp_req->mp_req_bd_dma >> 32);
task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size = 1;
}
/* Tx Write Rx Read */
/* init flags */
task->txwr_rxrd.const_ctx.init_flags = task_type <<
FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
if (tgt->dev_type == TYPE_TAPE)
task->txwr_rxrd.const_ctx.init_flags |=
FCOE_TASK_DEV_TYPE_TAPE <<
FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
else
task->txwr_rxrd.const_ctx.init_flags |=
FCOE_TASK_DEV_TYPE_DISK <<
FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
/* tx flags */
task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_INIT <<
FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
/* Rx Write Tx Read */
task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
/* rx flags */
task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
context_id = tgt->context_id;
task->rxwr_txrd.const_ctx.init_flags = context_id <<
FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
fc_hdr = &(mp_req->req_fc_hdr);
if (task_type == FCOE_TASK_TYPE_MIDPATH) {
fc_hdr->fh_ox_id = cpu_to_be16(io_req->xid);
fc_hdr->fh_rx_id = htons(0xffff);
task->rxwr_txrd.var_ctx.rx_id = 0xffff;
} else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
fc_hdr->fh_rx_id = cpu_to_be16(io_req->xid);
}
/* Fill FC Header into middle path buffer */
hdr = (u64 *) &task->txwr_rxrd.union_ctx.tx_frame.fc_hdr;
memcpy(temp_hdr, fc_hdr, sizeof(temp_hdr));
hdr[0] = cpu_to_be64(temp_hdr[0]);
hdr[1] = cpu_to_be64(temp_hdr[1]);
hdr[2] = cpu_to_be64(temp_hdr[2]);
/* Rx Only */
if (task_type == FCOE_TASK_TYPE_MIDPATH) {
sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
sgl->mul_sgl.cur_sge_addr.lo = (u32)mp_req->mp_resp_bd_dma;
sgl->mul_sgl.cur_sge_addr.hi =
(u32)((u64)mp_req->mp_resp_bd_dma >> 32);
sgl->mul_sgl.sgl_size = 1;
}
}
void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
struct fcoe_task_ctx_entry *task)
{
u8 task_type;
struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
struct io_bdt *bd_tbl = io_req->bd_tbl;
struct bnx2fc_rport *tgt = io_req->tgt;
struct fcoe_cached_sge_ctx *cached_sge;
struct fcoe_ext_mul_sges_ctx *sgl;
int dev_type = tgt->dev_type;
u64 *fcp_cmnd;
u64 tmp_fcp_cmnd[4];
u32 context_id;
int cnt, i;
int bd_count;
memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
/* Setup the task from io_req for easy reference */
io_req->task = task;
if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
task_type = FCOE_TASK_TYPE_WRITE;
else
task_type = FCOE_TASK_TYPE_READ;
/* Tx only */
bd_count = bd_tbl->bd_valid;
cached_sge = &task->rxwr_only.union_ctx.read_info.sgl_ctx.cached_sge;
if (task_type == FCOE_TASK_TYPE_WRITE) {
if ((dev_type == TYPE_DISK) && (bd_count == 1)) {
struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.lo =
cached_sge->cur_buf_addr.lo =
fcoe_bd_tbl->buf_addr_lo;
task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.hi =
cached_sge->cur_buf_addr.hi =
fcoe_bd_tbl->buf_addr_hi;
task->txwr_only.sgl_ctx.cached_sge.cur_buf_rem =
cached_sge->cur_buf_rem =
fcoe_bd_tbl->buf_len;
task->txwr_rxrd.const_ctx.init_flags |= 1 <<
FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
} else {
task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
(u32)bd_tbl->bd_tbl_dma;
task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
(u32)((u64)bd_tbl->bd_tbl_dma >> 32);
task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
bd_tbl->bd_valid;
}
}
/*Tx Write Rx Read */
/* Init state to NORMAL */
task->txwr_rxrd.const_ctx.init_flags |= task_type <<
FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
if (dev_type == TYPE_TAPE) {
task->txwr_rxrd.const_ctx.init_flags |=
FCOE_TASK_DEV_TYPE_TAPE <<
FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
io_req->rec_retry = 0;
io_req->rec_retry = 0;
} else
task->txwr_rxrd.const_ctx.init_flags |=
FCOE_TASK_DEV_TYPE_DISK <<
FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
/* tx flags */
task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_NORMAL <<
FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
/* Set initial seq counter */
task->txwr_rxrd.union_ctx.tx_seq.ctx.seq_cnt = 1;
/* Fill FCP_CMND IU */
fcp_cmnd = (u64 *)
task->txwr_rxrd.union_ctx.fcp_cmd.opaque;
bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
/* swap fcp_cmnd */
cnt = sizeof(struct fcp_cmnd) / sizeof(u64);
for (i = 0; i < cnt; i++) {
*fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]);
fcp_cmnd++;
}
/* Rx Write Tx Read */
task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
context_id = tgt->context_id;
task->rxwr_txrd.const_ctx.init_flags = context_id <<
FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
/* rx flags */
/* Set state to "waiting for the first packet" */
task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
task->rxwr_txrd.var_ctx.rx_id = 0xffff;
/* Rx Only */
if (task_type != FCOE_TASK_TYPE_READ)
return;
sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
bd_count = bd_tbl->bd_valid;
if (dev_type == TYPE_DISK) {
if (bd_count == 1) {
struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
task->txwr_rxrd.const_ctx.init_flags |= 1 <<
FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
} else if (bd_count == 2) {
struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
fcoe_bd_tbl++;
cached_sge->second_buf_addr.lo =
fcoe_bd_tbl->buf_addr_lo;
cached_sge->second_buf_addr.hi =
fcoe_bd_tbl->buf_addr_hi;
cached_sge->second_buf_rem = fcoe_bd_tbl->buf_len;
task->txwr_rxrd.const_ctx.init_flags |= 1 <<
FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
} else {
sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
sgl->mul_sgl.cur_sge_addr.hi =
(u32)((u64)bd_tbl->bd_tbl_dma >> 32);
sgl->mul_sgl.sgl_size = bd_count;
}
} else {
sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
sgl->mul_sgl.cur_sge_addr.hi =
(u32)((u64)bd_tbl->bd_tbl_dma >> 32);
sgl->mul_sgl.sgl_size = bd_count;
}
}
/**
* bnx2fc_setup_task_ctx - allocate and map task context
*
* @hba: pointer to adapter structure
*
* allocate memory for task context, and associated BD table to be used
* by firmware
*
*/
int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
{
int rc = 0;
struct regpair *task_ctx_bdt;
dma_addr_t addr;
int task_ctx_arr_sz;
int i;
/*
* Allocate task context bd table. A page size of bd table
* can map 256 buffers. Each buffer contains 32 task context
* entries. Hence the limit with one page is 8192 task context
* entries.
*/
hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
PAGE_SIZE,
&hba->task_ctx_bd_dma,
GFP_KERNEL);
if (!hba->task_ctx_bd_tbl) {
printk(KERN_ERR PFX "unable to allocate task context BDT\n");
rc = -1;
goto out;
}
/*
* Allocate task_ctx which is an array of pointers pointing to
* a page containing 32 task contexts
*/
task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
hba->task_ctx = kzalloc((task_ctx_arr_sz * sizeof(void *)),
GFP_KERNEL);
if (!hba->task_ctx) {
printk(KERN_ERR PFX "unable to allocate task context array\n");
rc = -1;
goto out1;
}
/*
* Allocate task_ctx_dma which is an array of dma addresses
*/
hba->task_ctx_dma = kmalloc((task_ctx_arr_sz *
sizeof(dma_addr_t)), GFP_KERNEL);
if (!hba->task_ctx_dma) {
printk(KERN_ERR PFX "unable to alloc context mapping array\n");
rc = -1;
goto out2;
}
task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl;
for (i = 0; i < task_ctx_arr_sz; i++) {
hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev,
PAGE_SIZE,
&hba->task_ctx_dma[i],
GFP_KERNEL);
if (!hba->task_ctx[i]) {
printk(KERN_ERR PFX "unable to alloc task context\n");
rc = -1;
goto out3;
}
addr = (u64)hba->task_ctx_dma[i];
task_ctx_bdt->hi = cpu_to_le32((u64)addr >> 32);
task_ctx_bdt->lo = cpu_to_le32((u32)addr);
task_ctx_bdt++;
}
return 0;
out3:
for (i = 0; i < task_ctx_arr_sz; i++) {
if (hba->task_ctx[i]) {
dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
hba->task_ctx[i], hba->task_ctx_dma[i]);
hba->task_ctx[i] = NULL;
}
}
kfree(hba->task_ctx_dma);
hba->task_ctx_dma = NULL;
out2:
kfree(hba->task_ctx);
hba->task_ctx = NULL;
out1:
dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
hba->task_ctx_bd_tbl, hba->task_ctx_bd_dma);
hba->task_ctx_bd_tbl = NULL;
out:
return rc;
}
void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba)
{
int task_ctx_arr_sz;
int i;
if (hba->task_ctx_bd_tbl) {
dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
hba->task_ctx_bd_tbl,
hba->task_ctx_bd_dma);
hba->task_ctx_bd_tbl = NULL;
}
task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
if (hba->task_ctx) {
for (i = 0; i < task_ctx_arr_sz; i++) {
if (hba->task_ctx[i]) {
dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
hba->task_ctx[i],
hba->task_ctx_dma[i]);
hba->task_ctx[i] = NULL;
}
}
kfree(hba->task_ctx);
hba->task_ctx = NULL;
}
kfree(hba->task_ctx_dma);
hba->task_ctx_dma = NULL;
}
static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba)
{
int i;
int segment_count;
u32 *pbl;
if (hba->hash_tbl_segments) {
pbl = hba->hash_tbl_pbl;
if (pbl) {
segment_count = hba->hash_tbl_segment_count;
for (i = 0; i < segment_count; ++i) {
dma_addr_t dma_address;
dma_address = le32_to_cpu(*pbl);
++pbl;
dma_address += ((u64)le32_to_cpu(*pbl)) << 32;
++pbl;
dma_free_coherent(&hba->pcidev->dev,
BNX2FC_HASH_TBL_CHUNK_SIZE,
hba->hash_tbl_segments[i],
dma_address);
}
}
kfree(hba->hash_tbl_segments);
hba->hash_tbl_segments = NULL;
}
if (hba->hash_tbl_pbl) {
dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
hba->hash_tbl_pbl,
hba->hash_tbl_pbl_dma);
hba->hash_tbl_pbl = NULL;
}
}
static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba)
{
int i;
int hash_table_size;
int segment_count;
int segment_array_size;
int dma_segment_array_size;
dma_addr_t *dma_segment_array;
u32 *pbl;
hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
sizeof(struct fcoe_hash_table_entry);
segment_count = hash_table_size + BNX2FC_HASH_TBL_CHUNK_SIZE - 1;
segment_count /= BNX2FC_HASH_TBL_CHUNK_SIZE;
hba->hash_tbl_segment_count = segment_count;
segment_array_size = segment_count * sizeof(*hba->hash_tbl_segments);
hba->hash_tbl_segments = kzalloc(segment_array_size, GFP_KERNEL);
if (!hba->hash_tbl_segments) {
printk(KERN_ERR PFX "hash table pointers alloc failed\n");
return -ENOMEM;
}
dma_segment_array_size = segment_count * sizeof(*dma_segment_array);
dma_segment_array = kzalloc(dma_segment_array_size, GFP_KERNEL);
if (!dma_segment_array) {
printk(KERN_ERR PFX "hash table pointers (dma) alloc failed\n");
goto cleanup_ht;
}
for (i = 0; i < segment_count; ++i) {
hba->hash_tbl_segments[i] = dma_alloc_coherent(&hba->pcidev->dev,
BNX2FC_HASH_TBL_CHUNK_SIZE,
&dma_segment_array[i],
GFP_KERNEL);
if (!hba->hash_tbl_segments[i]) {
printk(KERN_ERR PFX "hash segment alloc failed\n");
goto cleanup_dma;
}
}
hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
&hba->hash_tbl_pbl_dma,
GFP_KERNEL);
if (!hba->hash_tbl_pbl) {
printk(KERN_ERR PFX "hash table pbl alloc failed\n");
goto cleanup_dma;
}
pbl = hba->hash_tbl_pbl;
for (i = 0; i < segment_count; ++i) {
u64 paddr = dma_segment_array[i];
*pbl = cpu_to_le32((u32) paddr);
++pbl;
*pbl = cpu_to_le32((u32) (paddr >> 32));
++pbl;
}
pbl = hba->hash_tbl_pbl;
i = 0;
while (*pbl && *(pbl + 1)) {
++pbl;
++pbl;
++i;
}
kfree(dma_segment_array);
return 0;
cleanup_dma:
for (i = 0; i < segment_count; ++i) {
if (hba->hash_tbl_segments[i])
dma_free_coherent(&hba->pcidev->dev,
BNX2FC_HASH_TBL_CHUNK_SIZE,
hba->hash_tbl_segments[i],
dma_segment_array[i]);
}
kfree(dma_segment_array);
cleanup_ht:
kfree(hba->hash_tbl_segments);
hba->hash_tbl_segments = NULL;
return -ENOMEM;
}
/**
* bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer
*
* @hba: Pointer to adapter structure
*
*/
int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
{
u64 addr;
u32 mem_size;
int i;
if (bnx2fc_allocate_hash_table(hba))
return -ENOMEM;
mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
hba->t2_hash_tbl_ptr = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
&hba->t2_hash_tbl_ptr_dma,
GFP_KERNEL);
if (!hba->t2_hash_tbl_ptr) {
printk(KERN_ERR PFX "unable to allocate t2 hash table ptr\n");
bnx2fc_free_fw_resc(hba);
return -ENOMEM;
}
mem_size = BNX2FC_NUM_MAX_SESS *
sizeof(struct fcoe_t2_hash_table_entry);
hba->t2_hash_tbl = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
&hba->t2_hash_tbl_dma,
GFP_KERNEL);
if (!hba->t2_hash_tbl) {
printk(KERN_ERR PFX "unable to allocate t2 hash table\n");
bnx2fc_free_fw_resc(hba);
return -ENOMEM;
}
for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
addr = (unsigned long) hba->t2_hash_tbl_dma +
((i+1) * sizeof(struct fcoe_t2_hash_table_entry));
hba->t2_hash_tbl[i].next.lo = addr & 0xffffffff;
hba->t2_hash_tbl[i].next.hi = addr >> 32;
}
hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev,
PAGE_SIZE, &hba->dummy_buf_dma,
GFP_KERNEL);
if (!hba->dummy_buffer) {
printk(KERN_ERR PFX "unable to alloc MP Dummy Buffer\n");
bnx2fc_free_fw_resc(hba);
return -ENOMEM;
}
hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
&hba->stats_buf_dma,
GFP_KERNEL);
if (!hba->stats_buffer) {
printk(KERN_ERR PFX "unable to alloc Stats Buffer\n");
bnx2fc_free_fw_resc(hba);
return -ENOMEM;
}
return 0;
}
void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba)
{
u32 mem_size;
if (hba->stats_buffer) {
dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
hba->stats_buffer, hba->stats_buf_dma);
hba->stats_buffer = NULL;
}
if (hba->dummy_buffer) {
dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
hba->dummy_buffer, hba->dummy_buf_dma);
hba->dummy_buffer = NULL;
}
if (hba->t2_hash_tbl_ptr) {
mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
dma_free_coherent(&hba->pcidev->dev, mem_size,
hba->t2_hash_tbl_ptr,
hba->t2_hash_tbl_ptr_dma);
hba->t2_hash_tbl_ptr = NULL;
}
if (hba->t2_hash_tbl) {
mem_size = BNX2FC_NUM_MAX_SESS *
sizeof(struct fcoe_t2_hash_table_entry);
dma_free_coherent(&hba->pcidev->dev, mem_size,
hba->t2_hash_tbl, hba->t2_hash_tbl_dma);
hba->t2_hash_tbl = NULL;
}
bnx2fc_free_hash_table(hba);
}
|
linux-master
|
drivers/scsi/bnx2fc/bnx2fc_hwi.c
|
/* bnx2fc_tgt.c: QLogic Linux FCoE offload driver.
* Handles operations such as session offload/upload etc, and manages
* session resources such as connection id and qp resources.
*
* Copyright (c) 2008-2013 Broadcom Corporation
* Copyright (c) 2014-2016 QLogic Corporation
* Copyright (c) 2016-2017 Cavium Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Bhanu Prakash Gollapudi ([email protected])
*/
#include "bnx2fc.h"
static void bnx2fc_upld_timer(struct timer_list *t);
static void bnx2fc_ofld_timer(struct timer_list *t);
static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
struct fcoe_port *port,
struct fc_rport_priv *rdata);
static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
struct bnx2fc_rport *tgt);
static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
struct bnx2fc_rport *tgt);
static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
struct bnx2fc_rport *tgt);
static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id);
static void bnx2fc_upld_timer(struct timer_list *t)
{
struct bnx2fc_rport *tgt = from_timer(tgt, t, upld_timer);
BNX2FC_TGT_DBG(tgt, "upld_timer - Upload compl not received!!\n");
/* fake upload completion */
clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
wake_up_interruptible(&tgt->upld_wait);
}
static void bnx2fc_ofld_timer(struct timer_list *t)
{
struct bnx2fc_rport *tgt = from_timer(tgt, t, ofld_timer);
BNX2FC_TGT_DBG(tgt, "entered bnx2fc_ofld_timer\n");
/* NOTE: This function should never be called, as
* offload should never timeout
*/
/*
* If the timer has expired, this session is dead
* Clear offloaded flag and logout of this device.
* Since OFFLOADED flag is cleared, this case
* will be considered as offload error and the
* port will be logged off, and conn_id, session
* resources are freed up in bnx2fc_offload_session
*/
clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
wake_up_interruptible(&tgt->ofld_wait);
}
static void bnx2fc_ofld_wait(struct bnx2fc_rport *tgt)
{
timer_setup(&tgt->ofld_timer, bnx2fc_ofld_timer, 0);
mod_timer(&tgt->ofld_timer, jiffies + BNX2FC_FW_TIMEOUT);
wait_event_interruptible(tgt->ofld_wait,
(test_bit(
BNX2FC_FLAG_OFLD_REQ_CMPL,
&tgt->flags)));
if (signal_pending(current))
flush_signals(current);
del_timer_sync(&tgt->ofld_timer);
}
static void bnx2fc_offload_session(struct fcoe_port *port,
struct bnx2fc_rport *tgt,
struct fc_rport_priv *rdata)
{
struct fc_rport *rport = rdata->rport;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
int rval;
int i = 0;
/* Initialize bnx2fc_rport */
/* NOTE: tgt is already bzero'd */
rval = bnx2fc_init_tgt(tgt, port, rdata);
if (rval) {
printk(KERN_ERR PFX "Failed to allocate conn id for "
"port_id (%6x)\n", rport->port_id);
goto tgt_init_err;
}
/* Allocate session resources */
rval = bnx2fc_alloc_session_resc(hba, tgt);
if (rval) {
printk(KERN_ERR PFX "Failed to allocate resources\n");
goto ofld_err;
}
/*
* Initialize FCoE session offload process.
* Upon completion of offload process add
* rport to list of rports
*/
retry_ofld:
clear_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
rval = bnx2fc_send_session_ofld_req(port, tgt);
if (rval) {
printk(KERN_ERR PFX "ofld_req failed\n");
goto ofld_err;
}
/*
* wait for the session is offloaded and enabled. 3 Secs
* should be ample time for this process to complete.
*/
bnx2fc_ofld_wait(tgt);
if (!(test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags))) {
if (test_and_clear_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE,
&tgt->flags)) {
BNX2FC_TGT_DBG(tgt, "ctx_alloc_failure, "
"retry ofld..%d\n", i++);
msleep_interruptible(1000);
if (i > 3) {
i = 0;
goto ofld_err;
}
goto retry_ofld;
}
goto ofld_err;
}
if (bnx2fc_map_doorbell(tgt)) {
printk(KERN_ERR PFX "map doorbell failed - no mem\n");
goto ofld_err;
}
clear_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
rval = bnx2fc_send_session_enable_req(port, tgt);
if (rval) {
pr_err(PFX "enable session failed\n");
goto ofld_err;
}
bnx2fc_ofld_wait(tgt);
if (!(test_bit(BNX2FC_FLAG_ENABLED, &tgt->flags)))
goto ofld_err;
return;
ofld_err:
/* couldn't offload the session. log off from this rport */
BNX2FC_TGT_DBG(tgt, "bnx2fc_offload_session - offload error\n");
clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
/* Free session resources */
bnx2fc_free_session_resc(hba, tgt);
tgt_init_err:
if (tgt->fcoe_conn_id != -1)
bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
fc_rport_logoff(rdata);
}
void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
{
struct bnx2fc_cmd *io_req;
struct bnx2fc_cmd *tmp;
int rc;
int i = 0;
BNX2FC_TGT_DBG(tgt, "Entered flush_active_ios - %d\n",
tgt->num_active_ios.counter);
spin_lock_bh(&tgt->tgt_lock);
tgt->flush_in_prog = 1;
list_for_each_entry_safe(io_req, tmp, &tgt->active_cmd_queue, link) {
i++;
list_del_init(&io_req->link);
io_req->on_active_queue = 0;
BNX2FC_IO_DBG(io_req, "cmd_queue cleanup\n");
if (cancel_delayed_work(&io_req->timeout_work)) {
if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
&io_req->req_flags)) {
/* Handle eh_abort timeout */
BNX2FC_IO_DBG(io_req, "eh_abort for IO "
"cleaned up\n");
complete(&io_req->abts_done);
}
kref_put(&io_req->refcount,
bnx2fc_cmd_release); /* drop timer hold */
}
set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags);
set_bit(BNX2FC_FLAG_IO_CLEANUP, &io_req->req_flags);
/* Do not issue cleanup when disable request failed */
if (test_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags))
bnx2fc_process_cleanup_compl(io_req, io_req->task, 0);
else {
rc = bnx2fc_initiate_cleanup(io_req);
BUG_ON(rc);
}
}
list_for_each_entry_safe(io_req, tmp, &tgt->active_tm_queue, link) {
i++;
list_del_init(&io_req->link);
io_req->on_tmf_queue = 0;
BNX2FC_IO_DBG(io_req, "tm_queue cleanup\n");
if (io_req->wait_for_abts_comp)
complete(&io_req->abts_done);
}
list_for_each_entry_safe(io_req, tmp, &tgt->els_queue, link) {
i++;
list_del_init(&io_req->link);
io_req->on_active_queue = 0;
BNX2FC_IO_DBG(io_req, "els_queue cleanup\n");
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount,
bnx2fc_cmd_release); /* drop timer hold */
if ((io_req->cb_func) && (io_req->cb_arg)) {
io_req->cb_func(io_req->cb_arg);
io_req->cb_arg = NULL;
}
/* Do not issue cleanup when disable request failed */
if (test_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags))
bnx2fc_process_cleanup_compl(io_req, io_req->task, 0);
else {
rc = bnx2fc_initiate_cleanup(io_req);
BUG_ON(rc);
}
}
list_for_each_entry_safe(io_req, tmp, &tgt->io_retire_queue, link) {
i++;
list_del_init(&io_req->link);
BNX2FC_IO_DBG(io_req, "retire_queue flush\n");
if (cancel_delayed_work(&io_req->timeout_work)) {
if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
&io_req->req_flags)) {
/* Handle eh_abort timeout */
BNX2FC_IO_DBG(io_req, "eh_abort for IO "
"in retire_q\n");
if (io_req->wait_for_abts_comp)
complete(&io_req->abts_done);
}
kref_put(&io_req->refcount, bnx2fc_cmd_release);
}
clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
}
BNX2FC_TGT_DBG(tgt, "IOs flushed = %d\n", i);
i = 0;
spin_unlock_bh(&tgt->tgt_lock);
/* wait for active_ios to go to 0 */
while ((tgt->num_active_ios.counter != 0) && (i++ < BNX2FC_WAIT_CNT))
msleep(25);
if (tgt->num_active_ios.counter != 0)
printk(KERN_ERR PFX "CLEANUP on port 0x%x:"
" active_ios = %d\n",
tgt->rdata->ids.port_id, tgt->num_active_ios.counter);
spin_lock_bh(&tgt->tgt_lock);
tgt->flush_in_prog = 0;
spin_unlock_bh(&tgt->tgt_lock);
}
static void bnx2fc_upld_wait(struct bnx2fc_rport *tgt)
{
timer_setup(&tgt->upld_timer, bnx2fc_upld_timer, 0);
mod_timer(&tgt->upld_timer, jiffies + BNX2FC_FW_TIMEOUT);
wait_event_interruptible(tgt->upld_wait,
(test_bit(
BNX2FC_FLAG_UPLD_REQ_COMPL,
&tgt->flags)));
if (signal_pending(current))
flush_signals(current);
del_timer_sync(&tgt->upld_timer);
}
static void bnx2fc_upload_session(struct fcoe_port *port,
struct bnx2fc_rport *tgt)
{
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
BNX2FC_TGT_DBG(tgt, "upload_session: active_ios = %d\n",
tgt->num_active_ios.counter);
/*
* Called with hba->hba_mutex held.
* This is a blocking call
*/
clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
bnx2fc_send_session_disable_req(port, tgt);
/*
* wait for upload to complete. 3 Secs
* should be sufficient time for this process to complete.
*/
BNX2FC_TGT_DBG(tgt, "waiting for disable compl\n");
bnx2fc_upld_wait(tgt);
/*
* traverse thru the active_q and tmf_q and cleanup
* IOs in these lists
*/
BNX2FC_TGT_DBG(tgt, "flush/upload - disable wait flags = 0x%lx\n",
tgt->flags);
bnx2fc_flush_active_ios(tgt);
/* Issue destroy KWQE */
if (test_bit(BNX2FC_FLAG_DISABLED, &tgt->flags)) {
BNX2FC_TGT_DBG(tgt, "send destroy req\n");
clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
bnx2fc_send_session_destroy_req(hba, tgt);
/* wait for destroy to complete */
bnx2fc_upld_wait(tgt);
if (!(test_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags)))
printk(KERN_ERR PFX "ERROR!! destroy timed out\n");
BNX2FC_TGT_DBG(tgt, "destroy wait complete flags = 0x%lx\n",
tgt->flags);
} else if (test_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags)) {
printk(KERN_ERR PFX "ERROR!! DISABLE req failed, destroy"
" not sent to FW\n");
} else {
printk(KERN_ERR PFX "ERROR!! DISABLE req timed out, destroy"
" not sent to FW\n");
}
/* Free session resources */
bnx2fc_free_session_resc(hba, tgt);
bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
}
static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
struct fcoe_port *port,
struct fc_rport_priv *rdata)
{
struct fc_rport *rport = rdata->rport;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db;
struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db;
tgt->rport = rport;
tgt->rdata = rdata;
tgt->port = port;
if (hba->num_ofld_sess >= BNX2FC_NUM_MAX_SESS) {
BNX2FC_TGT_DBG(tgt, "exceeded max sessions. logoff this tgt\n");
tgt->fcoe_conn_id = -1;
return -1;
}
tgt->fcoe_conn_id = bnx2fc_alloc_conn_id(hba, tgt);
if (tgt->fcoe_conn_id == -1)
return -1;
BNX2FC_TGT_DBG(tgt, "init_tgt - conn_id = 0x%x\n", tgt->fcoe_conn_id);
tgt->max_sqes = BNX2FC_SQ_WQES_MAX;
tgt->max_rqes = BNX2FC_RQ_WQES_MAX;
tgt->max_cqes = BNX2FC_CQ_WQES_MAX;
atomic_set(&tgt->free_sqes, BNX2FC_SQ_WQES_MAX);
/* Initialize the toggle bit */
tgt->sq_curr_toggle_bit = 1;
tgt->cq_curr_toggle_bit = 1;
tgt->sq_prod_idx = 0;
tgt->cq_cons_idx = 0;
tgt->rq_prod_idx = 0x8000;
tgt->rq_cons_idx = 0;
atomic_set(&tgt->num_active_ios, 0);
tgt->retry_delay_timestamp = 0;
if (rdata->flags & FC_RP_FLAGS_RETRY &&
rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
!(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
tgt->dev_type = TYPE_TAPE;
tgt->io_timeout = 0; /* use default ULP timeout */
} else {
tgt->dev_type = TYPE_DISK;
tgt->io_timeout = BNX2FC_IO_TIMEOUT;
}
/* initialize sq doorbell */
sq_db->header.header = B577XX_DOORBELL_HDR_DB_TYPE;
sq_db->header.header |= B577XX_FCOE_CONNECTION_TYPE <<
B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT;
/* initialize rx doorbell */
rx_db->hdr.header = ((0x1 << B577XX_DOORBELL_HDR_RX_SHIFT) |
(0x1 << B577XX_DOORBELL_HDR_DB_TYPE_SHIFT) |
(B577XX_FCOE_CONNECTION_TYPE <<
B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT));
rx_db->params = (0x2 << B577XX_FCOE_RX_DOORBELL_NEGATIVE_ARM_SHIFT) |
(0x3 << B577XX_FCOE_RX_DOORBELL_OPCODE_SHIFT);
spin_lock_init(&tgt->tgt_lock);
spin_lock_init(&tgt->cq_lock);
/* Initialize active_cmd_queue list */
INIT_LIST_HEAD(&tgt->active_cmd_queue);
/* Initialize IO retire queue */
INIT_LIST_HEAD(&tgt->io_retire_queue);
INIT_LIST_HEAD(&tgt->els_queue);
/* Initialize active_tm_queue list */
INIT_LIST_HEAD(&tgt->active_tm_queue);
init_waitqueue_head(&tgt->ofld_wait);
init_waitqueue_head(&tgt->upld_wait);
return 0;
}
/*
* This event_callback is called after successful completion of libfc
* initiated target login. bnx2fc can proceed with initiating the session
* establishment.
*/
void bnx2fc_rport_event_handler(struct fc_lport *lport,
struct fc_rport_priv *rdata,
enum fc_rport_event event)
{
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct fc_rport *rport = rdata->rport;
struct fc_rport_libfc_priv *rp;
struct bnx2fc_rport *tgt;
u32 port_id;
BNX2FC_HBA_DBG(lport, "rport_event_hdlr: event = %d, port_id = 0x%x\n",
event, rdata->ids.port_id);
switch (event) {
case RPORT_EV_READY:
if (!rport) {
printk(KERN_ERR PFX "rport is NULL: ERROR!\n");
break;
}
rp = rport->dd_data;
if (rport->port_id == FC_FID_DIR_SERV) {
/*
* bnx2fc_rport structure doesn't exist for
* directory server.
* We should not come here, as lport will
* take care of fabric login
*/
printk(KERN_ERR PFX "%x - rport_event_handler ERROR\n",
rdata->ids.port_id);
break;
}
if (rdata->spp_type != FC_TYPE_FCP) {
BNX2FC_HBA_DBG(lport, "not FCP type target."
" not offloading\n");
break;
}
if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
BNX2FC_HBA_DBG(lport, "not FCP_TARGET"
" not offloading\n");
break;
}
/*
* Offload process is protected with hba mutex.
* Use the same mutex_lock for upload process too
*/
mutex_lock(&hba->hba_mutex);
tgt = (struct bnx2fc_rport *)&rp[1];
/* This can happen when ADISC finds the same target */
if (test_bit(BNX2FC_FLAG_ENABLED, &tgt->flags)) {
BNX2FC_TGT_DBG(tgt, "already offloaded\n");
mutex_unlock(&hba->hba_mutex);
return;
}
/*
* Offload the session. This is a blocking call, and will
* wait until the session is offloaded.
*/
bnx2fc_offload_session(port, tgt, rdata);
BNX2FC_TGT_DBG(tgt, "OFFLOAD num_ofld_sess = %d\n",
hba->num_ofld_sess);
if (test_bit(BNX2FC_FLAG_ENABLED, &tgt->flags)) {
/* Session is offloaded and enabled. */
BNX2FC_TGT_DBG(tgt, "sess offloaded\n");
/* This counter is protected with hba mutex */
hba->num_ofld_sess++;
set_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
} else {
/*
* Offload or enable would have failed.
* In offload/enable completion path, the
* rport would have already been removed
*/
BNX2FC_TGT_DBG(tgt, "Port is being logged off as "
"offloaded flag not set\n");
}
mutex_unlock(&hba->hba_mutex);
break;
case RPORT_EV_LOGO:
case RPORT_EV_FAILED:
case RPORT_EV_STOP:
port_id = rdata->ids.port_id;
if (port_id == FC_FID_DIR_SERV)
break;
if (!rport) {
printk(KERN_INFO PFX "%x - rport not created Yet!!\n",
port_id);
break;
}
rp = rport->dd_data;
mutex_lock(&hba->hba_mutex);
/*
* Perform session upload. Note that rdata->peers is already
* removed from disc->rports list before we get this event.
*/
tgt = (struct bnx2fc_rport *)&rp[1];
if (!(test_bit(BNX2FC_FLAG_ENABLED, &tgt->flags))) {
mutex_unlock(&hba->hba_mutex);
break;
}
clear_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
bnx2fc_upload_session(port, tgt);
hba->num_ofld_sess--;
BNX2FC_TGT_DBG(tgt, "UPLOAD num_ofld_sess = %d\n",
hba->num_ofld_sess);
/*
* Try to wake up the linkdown wait thread. If num_ofld_sess
* is 0, the waiting therad wakes up
*/
if ((hba->wait_for_link_down) &&
(hba->num_ofld_sess == 0)) {
wake_up_interruptible(&hba->shutdown_wait);
}
mutex_unlock(&hba->hba_mutex);
break;
case RPORT_EV_NONE:
break;
}
}
/**
* bnx2fc_tgt_lookup() - Lookup a bnx2fc_rport by port_id
*
* @port: fcoe_port struct to lookup the target port on
* @port_id: The remote port ID to look up
*/
struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
u32 port_id)
{
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct bnx2fc_rport *tgt;
struct fc_rport_priv *rdata;
int i;
for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
tgt = hba->tgt_ofld_list[i];
if ((tgt) && (tgt->port == port)) {
rdata = tgt->rdata;
if (rdata->ids.port_id == port_id) {
if (rdata->rp_state != RPORT_ST_DELETE) {
BNX2FC_TGT_DBG(tgt, "rport "
"obtained\n");
return tgt;
} else {
BNX2FC_TGT_DBG(tgt, "rport 0x%x "
"is in DELETED state\n",
rdata->ids.port_id);
return NULL;
}
}
}
}
return NULL;
}
/**
* bnx2fc_alloc_conn_id - allocates FCOE Connection id
*
* @hba: pointer to adapter structure
* @tgt: pointer to bnx2fc_rport structure
*/
static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
struct bnx2fc_rport *tgt)
{
u32 conn_id, next;
/* called with hba mutex held */
/*
* tgt_ofld_list access is synchronized using
* both hba mutex and hba lock. Atleast hba mutex or
* hba lock needs to be held for read access.
*/
spin_lock_bh(&hba->hba_lock);
next = hba->next_conn_id;
conn_id = hba->next_conn_id++;
if (hba->next_conn_id == BNX2FC_NUM_MAX_SESS)
hba->next_conn_id = 0;
while (hba->tgt_ofld_list[conn_id] != NULL) {
conn_id++;
if (conn_id == BNX2FC_NUM_MAX_SESS)
conn_id = 0;
if (conn_id == next) {
/* No free conn_ids are available */
spin_unlock_bh(&hba->hba_lock);
return -1;
}
}
hba->tgt_ofld_list[conn_id] = tgt;
tgt->fcoe_conn_id = conn_id;
spin_unlock_bh(&hba->hba_lock);
return conn_id;
}
static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id)
{
/* called with hba mutex held */
spin_lock_bh(&hba->hba_lock);
hba->tgt_ofld_list[conn_id] = NULL;
spin_unlock_bh(&hba->hba_lock);
}
/*
* bnx2fc_alloc_session_resc - Allocate qp resources for the session
*/
static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
struct bnx2fc_rport *tgt)
{
dma_addr_t page;
int num_pages;
u32 *pbl;
/* Allocate and map SQ */
tgt->sq_mem_size = tgt->max_sqes * BNX2FC_SQ_WQE_SIZE;
tgt->sq_mem_size = (tgt->sq_mem_size + (CNIC_PAGE_SIZE - 1)) &
CNIC_PAGE_MASK;
tgt->sq = dma_alloc_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
&tgt->sq_dma, GFP_KERNEL);
if (!tgt->sq) {
printk(KERN_ERR PFX "unable to allocate SQ memory %d\n",
tgt->sq_mem_size);
goto mem_alloc_failure;
}
/* Allocate and map CQ */
tgt->cq_mem_size = tgt->max_cqes * BNX2FC_CQ_WQE_SIZE;
tgt->cq_mem_size = (tgt->cq_mem_size + (CNIC_PAGE_SIZE - 1)) &
CNIC_PAGE_MASK;
tgt->cq = dma_alloc_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
&tgt->cq_dma, GFP_KERNEL);
if (!tgt->cq) {
printk(KERN_ERR PFX "unable to allocate CQ memory %d\n",
tgt->cq_mem_size);
goto mem_alloc_failure;
}
/* Allocate and map RQ and RQ PBL */
tgt->rq_mem_size = tgt->max_rqes * BNX2FC_RQ_WQE_SIZE;
tgt->rq_mem_size = (tgt->rq_mem_size + (CNIC_PAGE_SIZE - 1)) &
CNIC_PAGE_MASK;
tgt->rq = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
&tgt->rq_dma, GFP_KERNEL);
if (!tgt->rq) {
printk(KERN_ERR PFX "unable to allocate RQ memory %d\n",
tgt->rq_mem_size);
goto mem_alloc_failure;
}
tgt->rq_pbl_size = (tgt->rq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
tgt->rq_pbl_size = (tgt->rq_pbl_size + (CNIC_PAGE_SIZE - 1)) &
CNIC_PAGE_MASK;
tgt->rq_pbl = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
&tgt->rq_pbl_dma, GFP_KERNEL);
if (!tgt->rq_pbl) {
printk(KERN_ERR PFX "unable to allocate RQ PBL %d\n",
tgt->rq_pbl_size);
goto mem_alloc_failure;
}
num_pages = tgt->rq_mem_size / CNIC_PAGE_SIZE;
page = tgt->rq_dma;
pbl = (u32 *)tgt->rq_pbl;
while (num_pages--) {
*pbl = (u32)page;
pbl++;
*pbl = (u32)((u64)page >> 32);
pbl++;
page += CNIC_PAGE_SIZE;
}
/* Allocate and map XFERQ */
tgt->xferq_mem_size = tgt->max_sqes * BNX2FC_XFERQ_WQE_SIZE;
tgt->xferq_mem_size = (tgt->xferq_mem_size + (CNIC_PAGE_SIZE - 1)) &
CNIC_PAGE_MASK;
tgt->xferq = dma_alloc_coherent(&hba->pcidev->dev,
tgt->xferq_mem_size, &tgt->xferq_dma,
GFP_KERNEL);
if (!tgt->xferq) {
printk(KERN_ERR PFX "unable to allocate XFERQ %d\n",
tgt->xferq_mem_size);
goto mem_alloc_failure;
}
/* Allocate and map CONFQ & CONFQ PBL */
tgt->confq_mem_size = tgt->max_sqes * BNX2FC_CONFQ_WQE_SIZE;
tgt->confq_mem_size = (tgt->confq_mem_size + (CNIC_PAGE_SIZE - 1)) &
CNIC_PAGE_MASK;
tgt->confq = dma_alloc_coherent(&hba->pcidev->dev,
tgt->confq_mem_size, &tgt->confq_dma,
GFP_KERNEL);
if (!tgt->confq) {
printk(KERN_ERR PFX "unable to allocate CONFQ %d\n",
tgt->confq_mem_size);
goto mem_alloc_failure;
}
tgt->confq_pbl_size =
(tgt->confq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
tgt->confq_pbl_size =
(tgt->confq_pbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
tgt->confq_pbl = dma_alloc_coherent(&hba->pcidev->dev,
tgt->confq_pbl_size,
&tgt->confq_pbl_dma, GFP_KERNEL);
if (!tgt->confq_pbl) {
printk(KERN_ERR PFX "unable to allocate CONFQ PBL %d\n",
tgt->confq_pbl_size);
goto mem_alloc_failure;
}
num_pages = tgt->confq_mem_size / CNIC_PAGE_SIZE;
page = tgt->confq_dma;
pbl = (u32 *)tgt->confq_pbl;
while (num_pages--) {
*pbl = (u32)page;
pbl++;
*pbl = (u32)((u64)page >> 32);
pbl++;
page += CNIC_PAGE_SIZE;
}
/* Allocate and map ConnDB */
tgt->conn_db_mem_size = sizeof(struct fcoe_conn_db);
tgt->conn_db = dma_alloc_coherent(&hba->pcidev->dev,
tgt->conn_db_mem_size,
&tgt->conn_db_dma, GFP_KERNEL);
if (!tgt->conn_db) {
printk(KERN_ERR PFX "unable to allocate conn_db %d\n",
tgt->conn_db_mem_size);
goto mem_alloc_failure;
}
/* Allocate and map LCQ */
tgt->lcq_mem_size = (tgt->max_sqes + 8) * BNX2FC_SQ_WQE_SIZE;
tgt->lcq_mem_size = (tgt->lcq_mem_size + (CNIC_PAGE_SIZE - 1)) &
CNIC_PAGE_MASK;
tgt->lcq = dma_alloc_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
&tgt->lcq_dma, GFP_KERNEL);
if (!tgt->lcq) {
printk(KERN_ERR PFX "unable to allocate lcq %d\n",
tgt->lcq_mem_size);
goto mem_alloc_failure;
}
tgt->conn_db->rq_prod = 0x8000;
return 0;
mem_alloc_failure:
return -ENOMEM;
}
/**
* bnx2fc_free_session_resc - free qp resources for the session
*
* @hba: adapter structure pointer
* @tgt: bnx2fc_rport structure pointer
*
* Free QP resources - SQ/RQ/CQ/XFERQ memory and PBL
*/
static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
struct bnx2fc_rport *tgt)
{
void __iomem *ctx_base_ptr;
BNX2FC_TGT_DBG(tgt, "Freeing up session resources\n");
spin_lock_bh(&tgt->cq_lock);
ctx_base_ptr = tgt->ctx_base;
tgt->ctx_base = NULL;
/* Free LCQ */
if (tgt->lcq) {
dma_free_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
tgt->lcq, tgt->lcq_dma);
tgt->lcq = NULL;
}
/* Free connDB */
if (tgt->conn_db) {
dma_free_coherent(&hba->pcidev->dev, tgt->conn_db_mem_size,
tgt->conn_db, tgt->conn_db_dma);
tgt->conn_db = NULL;
}
/* Free confq and confq pbl */
if (tgt->confq_pbl) {
dma_free_coherent(&hba->pcidev->dev, tgt->confq_pbl_size,
tgt->confq_pbl, tgt->confq_pbl_dma);
tgt->confq_pbl = NULL;
}
if (tgt->confq) {
dma_free_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
tgt->confq, tgt->confq_dma);
tgt->confq = NULL;
}
/* Free XFERQ */
if (tgt->xferq) {
dma_free_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
tgt->xferq, tgt->xferq_dma);
tgt->xferq = NULL;
}
/* Free RQ PBL and RQ */
if (tgt->rq_pbl) {
dma_free_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
tgt->rq_pbl, tgt->rq_pbl_dma);
tgt->rq_pbl = NULL;
}
if (tgt->rq) {
dma_free_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
tgt->rq, tgt->rq_dma);
tgt->rq = NULL;
}
/* Free CQ */
if (tgt->cq) {
dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
tgt->cq, tgt->cq_dma);
tgt->cq = NULL;
}
/* Free SQ */
if (tgt->sq) {
dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
tgt->sq, tgt->sq_dma);
tgt->sq = NULL;
}
spin_unlock_bh(&tgt->cq_lock);
if (ctx_base_ptr)
iounmap(ctx_base_ptr);
}
|
linux-master
|
drivers/scsi/bnx2fc/bnx2fc_tgt.c
|
/*
* bnx2fc_els.c: QLogic Linux FCoE offload driver.
* This file contains helper routines that handle ELS requests
* and responses.
*
* Copyright (c) 2008-2013 Broadcom Corporation
* Copyright (c) 2014-2016 QLogic Corporation
* Copyright (c) 2016-2017 Cavium Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Bhanu Prakash Gollapudi ([email protected])
*/
#include "bnx2fc.h"
static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
void *arg);
static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
void *arg);
static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
void *data, u32 data_len,
void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec);
static void bnx2fc_rrq_compl(struct bnx2fc_els_cb_arg *cb_arg)
{
struct bnx2fc_cmd *orig_io_req;
struct bnx2fc_cmd *rrq_req;
int rc = 0;
BUG_ON(!cb_arg);
rrq_req = cb_arg->io_req;
orig_io_req = cb_arg->aborted_io_req;
BUG_ON(!orig_io_req);
BNX2FC_ELS_DBG("rrq_compl: orig xid = 0x%x, rrq_xid = 0x%x\n",
orig_io_req->xid, rrq_req->xid);
kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &rrq_req->req_flags)) {
/*
* els req is timed out. cleanup the IO with FW and
* drop the completion. Remove from active_cmd_queue.
*/
BNX2FC_ELS_DBG("rrq xid - 0x%x timed out, clean it up\n",
rrq_req->xid);
if (rrq_req->on_active_queue) {
list_del_init(&rrq_req->link);
rrq_req->on_active_queue = 0;
rc = bnx2fc_initiate_cleanup(rrq_req);
BUG_ON(rc);
}
}
kfree(cb_arg);
}
int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req)
{
struct fc_els_rrq rrq;
struct bnx2fc_rport *tgt = aborted_io_req->tgt;
struct fc_lport *lport = NULL;
struct bnx2fc_els_cb_arg *cb_arg = NULL;
u32 sid = 0;
u32 r_a_tov = 0;
unsigned long start = jiffies;
int rc;
if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))
return -EINVAL;
lport = tgt->rdata->local_port;
sid = tgt->sid;
r_a_tov = lport->r_a_tov;
BNX2FC_ELS_DBG("Sending RRQ orig_xid = 0x%x\n",
aborted_io_req->xid);
memset(&rrq, 0, sizeof(rrq));
cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_NOIO);
if (!cb_arg) {
printk(KERN_ERR PFX "Unable to allocate cb_arg for RRQ\n");
rc = -ENOMEM;
goto rrq_err;
}
cb_arg->aborted_io_req = aborted_io_req;
rrq.rrq_cmd = ELS_RRQ;
hton24(rrq.rrq_s_id, sid);
rrq.rrq_ox_id = htons(aborted_io_req->xid);
rrq.rrq_rx_id = htons(aborted_io_req->task->rxwr_txrd.var_ctx.rx_id);
retry_rrq:
rc = bnx2fc_initiate_els(tgt, ELS_RRQ, &rrq, sizeof(rrq),
bnx2fc_rrq_compl, cb_arg,
r_a_tov);
if (rc == -ENOMEM) {
if (time_after(jiffies, start + (10 * HZ))) {
BNX2FC_ELS_DBG("rrq Failed\n");
rc = FAILED;
goto rrq_err;
}
msleep(20);
goto retry_rrq;
}
rrq_err:
if (rc) {
BNX2FC_ELS_DBG("RRQ failed - release orig io req 0x%x\n",
aborted_io_req->xid);
kfree(cb_arg);
spin_lock_bh(&tgt->tgt_lock);
kref_put(&aborted_io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
}
return rc;
}
static void bnx2fc_l2_els_compl(struct bnx2fc_els_cb_arg *cb_arg)
{
struct bnx2fc_cmd *els_req;
struct bnx2fc_rport *tgt;
struct bnx2fc_mp_req *mp_req;
struct fc_frame_header *fc_hdr;
unsigned char *buf;
void *resp_buf;
u32 resp_len, hdr_len;
u16 l2_oxid;
int frame_len;
int rc = 0;
l2_oxid = cb_arg->l2_oxid;
BNX2FC_ELS_DBG("ELS COMPL - l2_oxid = 0x%x\n", l2_oxid);
els_req = cb_arg->io_req;
if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &els_req->req_flags)) {
/*
* els req is timed out. cleanup the IO with FW and
* drop the completion. libfc will handle the els timeout
*/
if (els_req->on_active_queue) {
list_del_init(&els_req->link);
els_req->on_active_queue = 0;
rc = bnx2fc_initiate_cleanup(els_req);
BUG_ON(rc);
}
goto free_arg;
}
tgt = els_req->tgt;
mp_req = &(els_req->mp_req);
fc_hdr = &(mp_req->resp_fc_hdr);
resp_len = mp_req->resp_len;
resp_buf = mp_req->resp_buf;
buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
if (!buf) {
printk(KERN_ERR PFX "Unable to alloc mp buf\n");
goto free_arg;
}
hdr_len = sizeof(*fc_hdr);
if (hdr_len + resp_len > PAGE_SIZE) {
printk(KERN_ERR PFX "l2_els_compl: resp len is "
"beyond page size\n");
goto free_buf;
}
memcpy(buf, fc_hdr, hdr_len);
memcpy(buf + hdr_len, resp_buf, resp_len);
frame_len = hdr_len + resp_len;
bnx2fc_process_l2_frame_compl(tgt, buf, frame_len, l2_oxid);
free_buf:
kfree(buf);
free_arg:
kfree(cb_arg);
}
int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp)
{
struct fc_els_adisc *adisc;
struct fc_frame_header *fh;
struct bnx2fc_els_cb_arg *cb_arg;
struct fc_lport *lport = tgt->rdata->local_port;
u32 r_a_tov = lport->r_a_tov;
int rc;
fh = fc_frame_header_get(fp);
cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
if (!cb_arg) {
printk(KERN_ERR PFX "Unable to allocate cb_arg for ADISC\n");
return -ENOMEM;
}
cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
BNX2FC_ELS_DBG("send ADISC: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
adisc = fc_frame_payload_get(fp, sizeof(*adisc));
/* adisc is initialized by libfc */
rc = bnx2fc_initiate_els(tgt, ELS_ADISC, adisc, sizeof(*adisc),
bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
if (rc)
kfree(cb_arg);
return rc;
}
int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp)
{
struct fc_els_logo *logo;
struct fc_frame_header *fh;
struct bnx2fc_els_cb_arg *cb_arg;
struct fc_lport *lport = tgt->rdata->local_port;
u32 r_a_tov = lport->r_a_tov;
int rc;
fh = fc_frame_header_get(fp);
cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
if (!cb_arg) {
printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
return -ENOMEM;
}
cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
BNX2FC_ELS_DBG("Send LOGO: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
logo = fc_frame_payload_get(fp, sizeof(*logo));
/* logo is initialized by libfc */
rc = bnx2fc_initiate_els(tgt, ELS_LOGO, logo, sizeof(*logo),
bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
if (rc)
kfree(cb_arg);
return rc;
}
int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp)
{
struct fc_els_rls *rls;
struct fc_frame_header *fh;
struct bnx2fc_els_cb_arg *cb_arg;
struct fc_lport *lport = tgt->rdata->local_port;
u32 r_a_tov = lport->r_a_tov;
int rc;
fh = fc_frame_header_get(fp);
cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
if (!cb_arg) {
printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
return -ENOMEM;
}
cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
rls = fc_frame_payload_get(fp, sizeof(*rls));
/* rls is initialized by libfc */
rc = bnx2fc_initiate_els(tgt, ELS_RLS, rls, sizeof(*rls),
bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
if (rc)
kfree(cb_arg);
return rc;
}
static void bnx2fc_srr_compl(struct bnx2fc_els_cb_arg *cb_arg)
{
struct bnx2fc_mp_req *mp_req;
struct fc_frame_header *fc_hdr, *fh;
struct bnx2fc_cmd *srr_req;
struct bnx2fc_cmd *orig_io_req;
struct fc_frame *fp;
unsigned char *buf;
void *resp_buf;
u32 resp_len, hdr_len;
u8 opcode;
int rc = 0;
orig_io_req = cb_arg->aborted_io_req;
srr_req = cb_arg->io_req;
if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &srr_req->req_flags)) {
/* SRR timedout */
BNX2FC_IO_DBG(srr_req, "srr timed out, abort "
"orig_io - 0x%x\n",
orig_io_req->xid);
rc = bnx2fc_initiate_abts(srr_req);
if (rc != SUCCESS) {
BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
"failed. issue cleanup\n");
bnx2fc_initiate_cleanup(srr_req);
}
if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags) ||
test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
BNX2FC_IO_DBG(srr_req, "srr_compl:xid 0x%x flags = %lx",
orig_io_req->xid, orig_io_req->req_flags);
goto srr_compl_done;
}
orig_io_req->srr_retry++;
if (orig_io_req->srr_retry <= SRR_RETRY_COUNT) {
struct bnx2fc_rport *tgt = orig_io_req->tgt;
spin_unlock_bh(&tgt->tgt_lock);
rc = bnx2fc_send_srr(orig_io_req,
orig_io_req->srr_offset,
orig_io_req->srr_rctl);
spin_lock_bh(&tgt->tgt_lock);
if (!rc)
goto srr_compl_done;
}
rc = bnx2fc_initiate_abts(orig_io_req);
if (rc != SUCCESS) {
BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
"failed xid = 0x%x. issue cleanup\n",
orig_io_req->xid);
bnx2fc_initiate_cleanup(orig_io_req);
}
goto srr_compl_done;
}
if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags) ||
test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
BNX2FC_IO_DBG(srr_req, "srr_compl:xid - 0x%x flags = %lx",
orig_io_req->xid, orig_io_req->req_flags);
goto srr_compl_done;
}
mp_req = &(srr_req->mp_req);
fc_hdr = &(mp_req->resp_fc_hdr);
resp_len = mp_req->resp_len;
resp_buf = mp_req->resp_buf;
hdr_len = sizeof(*fc_hdr);
buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
if (!buf) {
printk(KERN_ERR PFX "srr buf: mem alloc failure\n");
goto srr_compl_done;
}
memcpy(buf, fc_hdr, hdr_len);
memcpy(buf + hdr_len, resp_buf, resp_len);
fp = fc_frame_alloc(NULL, resp_len);
if (!fp) {
printk(KERN_ERR PFX "fc_frame_alloc failure\n");
goto free_buf;
}
fh = (struct fc_frame_header *) fc_frame_header_get(fp);
/* Copy FC Frame header and payload into the frame */
memcpy(fh, buf, hdr_len + resp_len);
opcode = fc_frame_payload_op(fp);
switch (opcode) {
case ELS_LS_ACC:
BNX2FC_IO_DBG(srr_req, "SRR success\n");
break;
case ELS_LS_RJT:
BNX2FC_IO_DBG(srr_req, "SRR rejected\n");
rc = bnx2fc_initiate_abts(orig_io_req);
if (rc != SUCCESS) {
BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
"failed xid = 0x%x. issue cleanup\n",
orig_io_req->xid);
bnx2fc_initiate_cleanup(orig_io_req);
}
break;
default:
BNX2FC_IO_DBG(srr_req, "srr compl - invalid opcode = %d\n",
opcode);
break;
}
fc_frame_free(fp);
free_buf:
kfree(buf);
srr_compl_done:
kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
}
static void bnx2fc_rec_compl(struct bnx2fc_els_cb_arg *cb_arg)
{
struct bnx2fc_cmd *orig_io_req, *new_io_req;
struct bnx2fc_cmd *rec_req;
struct bnx2fc_mp_req *mp_req;
struct fc_frame_header *fc_hdr, *fh;
struct fc_els_ls_rjt *rjt;
struct fc_els_rec_acc *acc;
struct bnx2fc_rport *tgt;
struct fcoe_err_report_entry *err_entry;
struct scsi_cmnd *sc_cmd;
enum fc_rctl r_ctl;
unsigned char *buf;
void *resp_buf;
struct fc_frame *fp;
u8 opcode;
u32 offset;
u32 e_stat;
u32 resp_len, hdr_len;
int rc = 0;
bool send_seq_clnp = false;
bool abort_io = false;
BNX2FC_MISC_DBG("Entered rec_compl callback\n");
rec_req = cb_arg->io_req;
orig_io_req = cb_arg->aborted_io_req;
BNX2FC_IO_DBG(rec_req, "rec_compl: orig xid = 0x%x", orig_io_req->xid);
tgt = orig_io_req->tgt;
/* Handle REC timeout case */
if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &rec_req->req_flags)) {
BNX2FC_IO_DBG(rec_req, "timed out, abort "
"orig_io - 0x%x\n",
orig_io_req->xid);
/* els req is timed out. send abts for els */
rc = bnx2fc_initiate_abts(rec_req);
if (rc != SUCCESS) {
BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
"failed. issue cleanup\n");
bnx2fc_initiate_cleanup(rec_req);
}
orig_io_req->rec_retry++;
/* REC timedout. send ABTS to the orig IO req */
if (orig_io_req->rec_retry <= REC_RETRY_COUNT) {
spin_unlock_bh(&tgt->tgt_lock);
rc = bnx2fc_send_rec(orig_io_req);
spin_lock_bh(&tgt->tgt_lock);
if (!rc)
goto rec_compl_done;
}
rc = bnx2fc_initiate_abts(orig_io_req);
if (rc != SUCCESS) {
BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
"failed xid = 0x%x. issue cleanup\n",
orig_io_req->xid);
bnx2fc_initiate_cleanup(orig_io_req);
}
goto rec_compl_done;
}
if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags)) {
BNX2FC_IO_DBG(rec_req, "completed"
"orig_io - 0x%x\n",
orig_io_req->xid);
goto rec_compl_done;
}
if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
BNX2FC_IO_DBG(rec_req, "abts in prog "
"orig_io - 0x%x\n",
orig_io_req->xid);
goto rec_compl_done;
}
mp_req = &(rec_req->mp_req);
fc_hdr = &(mp_req->resp_fc_hdr);
resp_len = mp_req->resp_len;
acc = resp_buf = mp_req->resp_buf;
hdr_len = sizeof(*fc_hdr);
buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
if (!buf) {
printk(KERN_ERR PFX "rec buf: mem alloc failure\n");
goto rec_compl_done;
}
memcpy(buf, fc_hdr, hdr_len);
memcpy(buf + hdr_len, resp_buf, resp_len);
fp = fc_frame_alloc(NULL, resp_len);
if (!fp) {
printk(KERN_ERR PFX "fc_frame_alloc failure\n");
goto free_buf;
}
fh = (struct fc_frame_header *) fc_frame_header_get(fp);
/* Copy FC Frame header and payload into the frame */
memcpy(fh, buf, hdr_len + resp_len);
opcode = fc_frame_payload_op(fp);
if (opcode == ELS_LS_RJT) {
BNX2FC_IO_DBG(rec_req, "opcode is RJT\n");
rjt = fc_frame_payload_get(fp, sizeof(*rjt));
if ((rjt->er_reason == ELS_RJT_LOGIC ||
rjt->er_reason == ELS_RJT_UNAB) &&
rjt->er_explan == ELS_EXPL_OXID_RXID) {
BNX2FC_IO_DBG(rec_req, "handle CMD LOST case\n");
new_io_req = bnx2fc_cmd_alloc(tgt);
if (!new_io_req)
goto abort_io;
new_io_req->sc_cmd = orig_io_req->sc_cmd;
/* cleanup orig_io_req that is with the FW */
set_bit(BNX2FC_FLAG_CMD_LOST,
&orig_io_req->req_flags);
bnx2fc_initiate_cleanup(orig_io_req);
/* Post a new IO req with the same sc_cmd */
BNX2FC_IO_DBG(rec_req, "Post IO request again\n");
rc = bnx2fc_post_io_req(tgt, new_io_req);
if (!rc)
goto free_frame;
BNX2FC_IO_DBG(rec_req, "REC: io post err\n");
}
abort_io:
rc = bnx2fc_initiate_abts(orig_io_req);
if (rc != SUCCESS) {
BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
"failed. issue cleanup\n");
bnx2fc_initiate_cleanup(orig_io_req);
}
} else if (opcode == ELS_LS_ACC) {
/* REVISIT: Check if the exchange is already aborted */
offset = ntohl(acc->reca_fc4value);
e_stat = ntohl(acc->reca_e_stat);
if (e_stat & ESB_ST_SEQ_INIT) {
BNX2FC_IO_DBG(rec_req, "target has the seq init\n");
goto free_frame;
}
BNX2FC_IO_DBG(rec_req, "e_stat = 0x%x, offset = 0x%x\n",
e_stat, offset);
/* Seq initiative is with us */
err_entry = (struct fcoe_err_report_entry *)
&orig_io_req->err_entry;
sc_cmd = orig_io_req->sc_cmd;
if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
/* SCSI WRITE command */
if (offset == orig_io_req->data_xfer_len) {
BNX2FC_IO_DBG(rec_req, "WRITE - resp lost\n");
/* FCP_RSP lost */
r_ctl = FC_RCTL_DD_CMD_STATUS;
offset = 0;
} else {
/* start transmitting from offset */
BNX2FC_IO_DBG(rec_req, "XFER_RDY/DATA lost\n");
send_seq_clnp = true;
r_ctl = FC_RCTL_DD_DATA_DESC;
if (bnx2fc_initiate_seq_cleanup(orig_io_req,
offset, r_ctl))
abort_io = true;
/* XFER_RDY */
}
} else {
/* SCSI READ command */
if (err_entry->data.rx_buf_off ==
orig_io_req->data_xfer_len) {
/* FCP_RSP lost */
BNX2FC_IO_DBG(rec_req, "READ - resp lost\n");
r_ctl = FC_RCTL_DD_CMD_STATUS;
offset = 0;
} else {
/* request retransmission from this offset */
send_seq_clnp = true;
offset = err_entry->data.rx_buf_off;
BNX2FC_IO_DBG(rec_req, "RD DATA lost\n");
/* FCP_DATA lost */
r_ctl = FC_RCTL_DD_SOL_DATA;
if (bnx2fc_initiate_seq_cleanup(orig_io_req,
offset, r_ctl))
abort_io = true;
}
}
if (abort_io) {
rc = bnx2fc_initiate_abts(orig_io_req);
if (rc != SUCCESS) {
BNX2FC_IO_DBG(rec_req, "rec_compl:initiate_abts"
" failed. issue cleanup\n");
bnx2fc_initiate_cleanup(orig_io_req);
}
} else if (!send_seq_clnp) {
BNX2FC_IO_DBG(rec_req, "Send SRR - FCP_RSP\n");
spin_unlock_bh(&tgt->tgt_lock);
rc = bnx2fc_send_srr(orig_io_req, offset, r_ctl);
spin_lock_bh(&tgt->tgt_lock);
if (rc) {
BNX2FC_IO_DBG(rec_req, "Unable to send SRR"
" IO will abort\n");
}
}
}
free_frame:
fc_frame_free(fp);
free_buf:
kfree(buf);
rec_compl_done:
kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
kfree(cb_arg);
}
int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req)
{
struct fc_els_rec rec;
struct bnx2fc_rport *tgt = orig_io_req->tgt;
struct fc_lport *lport = tgt->rdata->local_port;
struct bnx2fc_els_cb_arg *cb_arg = NULL;
u32 sid = tgt->sid;
u32 r_a_tov = lport->r_a_tov;
int rc;
BNX2FC_IO_DBG(orig_io_req, "Sending REC\n");
memset(&rec, 0, sizeof(rec));
cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
if (!cb_arg) {
printk(KERN_ERR PFX "Unable to allocate cb_arg for REC\n");
rc = -ENOMEM;
goto rec_err;
}
kref_get(&orig_io_req->refcount);
cb_arg->aborted_io_req = orig_io_req;
rec.rec_cmd = ELS_REC;
hton24(rec.rec_s_id, sid);
rec.rec_ox_id = htons(orig_io_req->xid);
rec.rec_rx_id = htons(orig_io_req->task->rxwr_txrd.var_ctx.rx_id);
rc = bnx2fc_initiate_els(tgt, ELS_REC, &rec, sizeof(rec),
bnx2fc_rec_compl, cb_arg,
r_a_tov);
if (rc) {
BNX2FC_IO_DBG(orig_io_req, "REC failed - release\n");
spin_lock_bh(&tgt->tgt_lock);
kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
kfree(cb_arg);
}
rec_err:
return rc;
}
int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl)
{
struct fcp_srr srr;
struct bnx2fc_rport *tgt = orig_io_req->tgt;
struct fc_lport *lport = tgt->rdata->local_port;
struct bnx2fc_els_cb_arg *cb_arg = NULL;
u32 r_a_tov = lport->r_a_tov;
int rc;
BNX2FC_IO_DBG(orig_io_req, "Sending SRR\n");
memset(&srr, 0, sizeof(srr));
cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
if (!cb_arg) {
printk(KERN_ERR PFX "Unable to allocate cb_arg for SRR\n");
rc = -ENOMEM;
goto srr_err;
}
kref_get(&orig_io_req->refcount);
cb_arg->aborted_io_req = orig_io_req;
srr.srr_op = ELS_SRR;
srr.srr_ox_id = htons(orig_io_req->xid);
srr.srr_rx_id = htons(orig_io_req->task->rxwr_txrd.var_ctx.rx_id);
srr.srr_rel_off = htonl(offset);
srr.srr_r_ctl = r_ctl;
orig_io_req->srr_offset = offset;
orig_io_req->srr_rctl = r_ctl;
rc = bnx2fc_initiate_els(tgt, ELS_SRR, &srr, sizeof(srr),
bnx2fc_srr_compl, cb_arg,
r_a_tov);
if (rc) {
BNX2FC_IO_DBG(orig_io_req, "SRR failed - release\n");
spin_lock_bh(&tgt->tgt_lock);
kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
kfree(cb_arg);
} else
set_bit(BNX2FC_FLAG_SRR_SENT, &orig_io_req->req_flags);
srr_err:
return rc;
}
static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
void *data, u32 data_len,
void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec)
{
struct fcoe_port *port = tgt->port;
struct bnx2fc_interface *interface = port->priv;
struct fc_rport *rport = tgt->rport;
struct fc_lport *lport = port->lport;
struct bnx2fc_cmd *els_req;
struct bnx2fc_mp_req *mp_req;
struct fc_frame_header *fc_hdr;
struct fcoe_task_ctx_entry *task;
struct fcoe_task_ctx_entry *task_page;
int rc = 0;
int task_idx, index;
u32 did, sid;
u16 xid;
rc = fc_remote_port_chkready(rport);
if (rc) {
printk(KERN_ERR PFX "els 0x%x: rport not ready\n", op);
rc = -EINVAL;
goto els_err;
}
if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
printk(KERN_ERR PFX "els 0x%x: link is not ready\n", op);
rc = -EINVAL;
goto els_err;
}
if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
printk(KERN_ERR PFX "els 0x%x: tgt not ready\n", op);
rc = -EINVAL;
goto els_err;
}
els_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ELS);
if (!els_req) {
rc = -ENOMEM;
goto els_err;
}
els_req->sc_cmd = NULL;
els_req->port = port;
els_req->tgt = tgt;
els_req->cb_func = cb_func;
cb_arg->io_req = els_req;
els_req->cb_arg = cb_arg;
els_req->data_xfer_len = data_len;
mp_req = (struct bnx2fc_mp_req *)&(els_req->mp_req);
rc = bnx2fc_init_mp_req(els_req);
if (rc == FAILED) {
printk(KERN_ERR PFX "ELS MP request init failed\n");
spin_lock_bh(&tgt->tgt_lock);
kref_put(&els_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
rc = -ENOMEM;
goto els_err;
} else {
/* rc SUCCESS */
rc = 0;
}
/* Set the data_xfer_len to the size of ELS payload */
mp_req->req_len = data_len;
els_req->data_xfer_len = mp_req->req_len;
/* Fill ELS Payload */
if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
memcpy(mp_req->req_buf, data, data_len);
} else {
printk(KERN_ERR PFX "Invalid ELS op 0x%x\n", op);
els_req->cb_func = NULL;
els_req->cb_arg = NULL;
spin_lock_bh(&tgt->tgt_lock);
kref_put(&els_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
rc = -EINVAL;
}
if (rc)
goto els_err;
/* Fill FC header */
fc_hdr = &(mp_req->req_fc_hdr);
did = tgt->rport->port_id;
sid = tgt->sid;
if (op == ELS_SRR)
__fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS4_REQ, did, sid,
FC_TYPE_FCP, FC_FC_FIRST_SEQ |
FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
else
__fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, did, sid,
FC_TYPE_ELS, FC_FC_FIRST_SEQ |
FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
/* Obtain exchange id */
xid = els_req->xid;
task_idx = xid/BNX2FC_TASKS_PER_PAGE;
index = xid % BNX2FC_TASKS_PER_PAGE;
/* Initialize task context for this IO request */
task_page = (struct fcoe_task_ctx_entry *)
interface->hba->task_ctx[task_idx];
task = &(task_page[index]);
bnx2fc_init_mp_task(els_req, task);
spin_lock_bh(&tgt->tgt_lock);
if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
printk(KERN_ERR PFX "initiate_els.. session not ready\n");
els_req->cb_func = NULL;
els_req->cb_arg = NULL;
kref_put(&els_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
return -EINVAL;
}
if (timer_msec)
bnx2fc_cmd_timer_set(els_req, timer_msec);
bnx2fc_add_2_sq(tgt, xid);
els_req->on_active_queue = 1;
list_add_tail(&els_req->link, &tgt->els_queue);
/* Ring doorbell */
bnx2fc_ring_doorbell(tgt);
spin_unlock_bh(&tgt->tgt_lock);
els_err:
return rc;
}
void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
struct fcoe_task_ctx_entry *task, u8 num_rq)
{
struct bnx2fc_mp_req *mp_req;
struct fc_frame_header *fc_hdr;
u64 *hdr;
u64 *temp_hdr;
BNX2FC_ELS_DBG("Entered process_els_compl xid = 0x%x"
"cmd_type = %d\n", els_req->xid, els_req->cmd_type);
if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
&els_req->req_flags)) {
BNX2FC_ELS_DBG("Timer context finished processing this "
"els - 0x%x\n", els_req->xid);
/* This IO doesn't receive cleanup completion */
kref_put(&els_req->refcount, bnx2fc_cmd_release);
return;
}
/* Cancel the timeout_work, as we received the response */
if (cancel_delayed_work(&els_req->timeout_work))
kref_put(&els_req->refcount,
bnx2fc_cmd_release); /* drop timer hold */
if (els_req->on_active_queue) {
list_del_init(&els_req->link);
els_req->on_active_queue = 0;
}
mp_req = &(els_req->mp_req);
fc_hdr = &(mp_req->resp_fc_hdr);
hdr = (u64 *)fc_hdr;
temp_hdr = (u64 *)
&task->rxwr_only.union_ctx.comp_info.mp_rsp.fc_hdr;
hdr[0] = cpu_to_be64(temp_hdr[0]);
hdr[1] = cpu_to_be64(temp_hdr[1]);
hdr[2] = cpu_to_be64(temp_hdr[2]);
mp_req->resp_len =
task->rxwr_only.union_ctx.comp_info.mp_rsp.mp_payload_len;
/* Parse ELS response */
if ((els_req->cb_func) && (els_req->cb_arg)) {
els_req->cb_func(els_req->cb_arg);
els_req->cb_arg = NULL;
}
kref_put(&els_req->refcount, bnx2fc_cmd_release);
}
#define BNX2FC_FCOE_MAC_METHOD_GRANGED_MAC 1
#define BNX2FC_FCOE_MAC_METHOD_FCF_MAP 2
#define BNX2FC_FCOE_MAC_METHOD_FCOE_SET_MAC 3
static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
void *arg)
{
struct fcoe_ctlr *fip = arg;
struct fc_exch *exch = fc_seq_exch(seq);
struct fc_lport *lport = exch->lp;
struct fc_frame_header *fh;
u8 *granted_mac;
u8 fcoe_mac[6];
u8 fc_map[3];
int method;
if (IS_ERR(fp))
goto done;
fh = fc_frame_header_get(fp);
granted_mac = fr_cb(fp)->granted_mac;
/*
* We set the source MAC for FCoE traffic based on the Granted MAC
* address from the switch.
*
* If granted_mac is non-zero, we use that.
* If the granted_mac is zeroed out, create the FCoE MAC based on
* the sel_fcf->fc_map and the d_id fo the FLOGI frame.
* If sel_fcf->fc_map is 0, then we use the default FCF-MAC plus the
* d_id of the FLOGI frame.
*/
if (!is_zero_ether_addr(granted_mac)) {
ether_addr_copy(fcoe_mac, granted_mac);
method = BNX2FC_FCOE_MAC_METHOD_GRANGED_MAC;
} else if (fip->sel_fcf && fip->sel_fcf->fc_map != 0) {
hton24(fc_map, fip->sel_fcf->fc_map);
fcoe_mac[0] = fc_map[0];
fcoe_mac[1] = fc_map[1];
fcoe_mac[2] = fc_map[2];
fcoe_mac[3] = fh->fh_d_id[0];
fcoe_mac[4] = fh->fh_d_id[1];
fcoe_mac[5] = fh->fh_d_id[2];
method = BNX2FC_FCOE_MAC_METHOD_FCF_MAP;
} else {
fc_fcoe_set_mac(fcoe_mac, fh->fh_d_id);
method = BNX2FC_FCOE_MAC_METHOD_FCOE_SET_MAC;
}
BNX2FC_HBA_DBG(lport, "fcoe_mac=%pM method=%d\n", fcoe_mac, method);
fip->update_mac(lport, fcoe_mac);
done:
fc_lport_flogi_resp(seq, fp, lport);
}
static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
void *arg)
{
struct fcoe_ctlr *fip = arg;
struct fc_exch *exch = fc_seq_exch(seq);
struct fc_lport *lport = exch->lp;
static u8 zero_mac[ETH_ALEN] = { 0 };
if (!IS_ERR(fp))
fip->update_mac(lport, zero_mac);
fc_lport_logo_resp(seq, fp, lport);
}
struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
struct fc_frame *fp, unsigned int op,
void (*resp)(struct fc_seq *,
struct fc_frame *,
void *),
void *arg, u32 timeout)
{
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
struct fcoe_ctlr *fip = bnx2fc_to_ctlr(interface);
struct fc_frame_header *fh = fc_frame_header_get(fp);
switch (op) {
case ELS_FLOGI:
case ELS_FDISC:
return fc_elsct_send(lport, did, fp, op, bnx2fc_flogi_resp,
fip, timeout);
case ELS_LOGO:
/* only hook onto fabric logouts, not port logouts */
if (ntoh24(fh->fh_d_id) != FC_FID_FLOGI)
break;
return fc_elsct_send(lport, did, fp, op, bnx2fc_logo_resp,
fip, timeout);
}
return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
}
|
linux-master
|
drivers/scsi/bnx2fc/bnx2fc_els.c
|
/* bnx2fc_io.c: QLogic Linux FCoE offload driver.
* IO manager and SCSI IO processing.
*
* Copyright (c) 2008-2013 Broadcom Corporation
* Copyright (c) 2014-2016 QLogic Corporation
* Copyright (c) 2016-2017 Cavium Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Bhanu Prakash Gollapudi ([email protected])
*/
#include "bnx2fc.h"
#define RESERVE_FREE_LIST_INDEX num_possible_cpus()
static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
int bd_index);
static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req);
static int bnx2fc_build_bd_list_from_sg(struct bnx2fc_cmd *io_req);
static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req);
static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req);
static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
struct fcoe_fcp_rsp_payload *fcp_rsp,
u8 num_rq, unsigned char *rq_data);
void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
unsigned int timer_msec)
{
struct bnx2fc_interface *interface = io_req->port->priv;
if (queue_delayed_work(interface->timer_work_queue,
&io_req->timeout_work,
msecs_to_jiffies(timer_msec)))
kref_get(&io_req->refcount);
}
static void bnx2fc_cmd_timeout(struct work_struct *work)
{
struct bnx2fc_cmd *io_req = container_of(work, struct bnx2fc_cmd,
timeout_work.work);
u8 cmd_type = io_req->cmd_type;
struct bnx2fc_rport *tgt = io_req->tgt;
int rc;
BNX2FC_IO_DBG(io_req, "cmd_timeout, cmd_type = %d,"
"req_flags = %lx\n", cmd_type, io_req->req_flags);
spin_lock_bh(&tgt->tgt_lock);
if (test_and_clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags)) {
clear_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags);
/*
* ideally we should hold the io_req until RRQ complets,
* and release io_req from timeout hold.
*/
spin_unlock_bh(&tgt->tgt_lock);
bnx2fc_send_rrq(io_req);
return;
}
if (test_and_clear_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags)) {
BNX2FC_IO_DBG(io_req, "IO ready for reuse now\n");
goto done;
}
switch (cmd_type) {
case BNX2FC_SCSI_CMD:
if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
&io_req->req_flags)) {
/* Handle eh_abort timeout */
BNX2FC_IO_DBG(io_req, "eh_abort timed out\n");
complete(&io_req->abts_done);
} else if (test_bit(BNX2FC_FLAG_ISSUE_ABTS,
&io_req->req_flags)) {
/* Handle internally generated ABTS timeout */
BNX2FC_IO_DBG(io_req, "ABTS timed out refcnt = %d\n",
kref_read(&io_req->refcount));
if (!(test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
&io_req->req_flags))) {
/*
* Cleanup and return original command to
* mid-layer.
*/
bnx2fc_initiate_cleanup(io_req);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
return;
}
} else {
/* Hanlde IO timeout */
BNX2FC_IO_DBG(io_req, "IO timed out. issue ABTS\n");
if (test_and_set_bit(BNX2FC_FLAG_IO_COMPL,
&io_req->req_flags)) {
BNX2FC_IO_DBG(io_req, "IO completed before "
" timer expiry\n");
goto done;
}
if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
&io_req->req_flags)) {
rc = bnx2fc_initiate_abts(io_req);
if (rc == SUCCESS)
goto done;
kref_put(&io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
return;
} else {
BNX2FC_IO_DBG(io_req, "IO already in "
"ABTS processing\n");
}
}
break;
case BNX2FC_ELS:
if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
BNX2FC_IO_DBG(io_req, "ABTS for ELS timed out\n");
if (!test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
&io_req->req_flags)) {
kref_put(&io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
return;
}
} else {
/*
* Handle ELS timeout.
* tgt_lock is used to sync compl path and timeout
* path. If els compl path is processing this IO, we
* have nothing to do here, just release the timer hold
*/
BNX2FC_IO_DBG(io_req, "ELS timed out\n");
if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
&io_req->req_flags))
goto done;
/* Indicate the cb_func that this ELS is timed out */
set_bit(BNX2FC_FLAG_ELS_TIMEOUT, &io_req->req_flags);
if ((io_req->cb_func) && (io_req->cb_arg)) {
io_req->cb_func(io_req->cb_arg);
io_req->cb_arg = NULL;
}
}
break;
default:
printk(KERN_ERR PFX "cmd_timeout: invalid cmd_type %d\n",
cmd_type);
break;
}
done:
/* release the cmd that was held when timer was set */
kref_put(&io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
}
static void bnx2fc_scsi_done(struct bnx2fc_cmd *io_req, int err_code)
{
/* Called with host lock held */
struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
/*
* active_cmd_queue may have other command types as well,
* and during flush operation, we want to error back only
* scsi commands.
*/
if (io_req->cmd_type != BNX2FC_SCSI_CMD)
return;
BNX2FC_IO_DBG(io_req, "scsi_done. err_code = 0x%x\n", err_code);
if (test_bit(BNX2FC_FLAG_CMD_LOST, &io_req->req_flags)) {
/* Do not call scsi done for this IO */
return;
}
bnx2fc_unmap_sg_list(io_req);
io_req->sc_cmd = NULL;
/* Sanity checks before returning command to mid-layer */
if (!sc_cmd) {
printk(KERN_ERR PFX "scsi_done - sc_cmd NULL. "
"IO(0x%x) already cleaned up\n",
io_req->xid);
return;
}
if (!sc_cmd->device) {
pr_err(PFX "0x%x: sc_cmd->device is NULL.\n", io_req->xid);
return;
}
if (!sc_cmd->device->host) {
pr_err(PFX "0x%x: sc_cmd->device->host is NULL.\n",
io_req->xid);
return;
}
sc_cmd->result = err_code << 16;
BNX2FC_IO_DBG(io_req, "sc=%p, result=0x%x, retries=%d, allowed=%d\n",
sc_cmd, host_byte(sc_cmd->result), sc_cmd->retries,
sc_cmd->allowed);
scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
bnx2fc_priv(sc_cmd)->io_req = NULL;
scsi_done(sc_cmd);
}
struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba)
{
struct bnx2fc_cmd_mgr *cmgr;
struct io_bdt *bdt_info;
struct bnx2fc_cmd *io_req;
size_t len;
u32 mem_size;
u16 xid;
int i;
int num_ios, num_pri_ios;
size_t bd_tbl_sz;
int arr_sz = num_possible_cpus() + 1;
u16 min_xid = BNX2FC_MIN_XID;
u16 max_xid = hba->max_xid;
if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) {
printk(KERN_ERR PFX "cmd_mgr_alloc: Invalid min_xid 0x%x \
and max_xid 0x%x\n", min_xid, max_xid);
return NULL;
}
BNX2FC_MISC_DBG("min xid 0x%x, max xid 0x%x\n", min_xid, max_xid);
num_ios = max_xid - min_xid + 1;
len = (num_ios * (sizeof(struct bnx2fc_cmd *)));
len += sizeof(struct bnx2fc_cmd_mgr);
cmgr = kzalloc(len, GFP_KERNEL);
if (!cmgr) {
printk(KERN_ERR PFX "failed to alloc cmgr\n");
return NULL;
}
cmgr->hba = hba;
cmgr->free_list = kcalloc(arr_sz, sizeof(*cmgr->free_list),
GFP_KERNEL);
if (!cmgr->free_list) {
printk(KERN_ERR PFX "failed to alloc free_list\n");
goto mem_err;
}
cmgr->free_list_lock = kcalloc(arr_sz, sizeof(*cmgr->free_list_lock),
GFP_KERNEL);
if (!cmgr->free_list_lock) {
printk(KERN_ERR PFX "failed to alloc free_list_lock\n");
kfree(cmgr->free_list);
cmgr->free_list = NULL;
goto mem_err;
}
cmgr->cmds = (struct bnx2fc_cmd **)(cmgr + 1);
for (i = 0; i < arr_sz; i++) {
INIT_LIST_HEAD(&cmgr->free_list[i]);
spin_lock_init(&cmgr->free_list_lock[i]);
}
/*
* Pre-allocated pool of bnx2fc_cmds.
* Last entry in the free list array is the free list
* of slow path requests.
*/
xid = BNX2FC_MIN_XID;
num_pri_ios = num_ios - hba->elstm_xids;
for (i = 0; i < num_ios; i++) {
io_req = kzalloc(sizeof(*io_req), GFP_KERNEL);
if (!io_req) {
printk(KERN_ERR PFX "failed to alloc io_req\n");
goto mem_err;
}
INIT_LIST_HEAD(&io_req->link);
INIT_DELAYED_WORK(&io_req->timeout_work, bnx2fc_cmd_timeout);
io_req->xid = xid++;
if (i < num_pri_ios)
list_add_tail(&io_req->link,
&cmgr->free_list[io_req->xid %
num_possible_cpus()]);
else
list_add_tail(&io_req->link,
&cmgr->free_list[num_possible_cpus()]);
io_req++;
}
/* Allocate pool of io_bdts - one for each bnx2fc_cmd */
mem_size = num_ios * sizeof(struct io_bdt *);
cmgr->io_bdt_pool = kzalloc(mem_size, GFP_KERNEL);
if (!cmgr->io_bdt_pool) {
printk(KERN_ERR PFX "failed to alloc io_bdt_pool\n");
goto mem_err;
}
mem_size = sizeof(struct io_bdt);
for (i = 0; i < num_ios; i++) {
cmgr->io_bdt_pool[i] = kmalloc(mem_size, GFP_KERNEL);
if (!cmgr->io_bdt_pool[i]) {
printk(KERN_ERR PFX "failed to alloc "
"io_bdt_pool[%d]\n", i);
goto mem_err;
}
}
/* Allocate an map fcoe_bdt_ctx structures */
bd_tbl_sz = BNX2FC_MAX_BDS_PER_CMD * sizeof(struct fcoe_bd_ctx);
for (i = 0; i < num_ios; i++) {
bdt_info = cmgr->io_bdt_pool[i];
bdt_info->bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
bd_tbl_sz,
&bdt_info->bd_tbl_dma,
GFP_KERNEL);
if (!bdt_info->bd_tbl) {
printk(KERN_ERR PFX "failed to alloc "
"bdt_tbl[%d]\n", i);
goto mem_err;
}
}
return cmgr;
mem_err:
bnx2fc_cmd_mgr_free(cmgr);
return NULL;
}
void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr)
{
struct io_bdt *bdt_info;
struct bnx2fc_hba *hba = cmgr->hba;
size_t bd_tbl_sz;
u16 min_xid = BNX2FC_MIN_XID;
u16 max_xid = hba->max_xid;
int num_ios;
int i;
num_ios = max_xid - min_xid + 1;
/* Free fcoe_bdt_ctx structures */
if (!cmgr->io_bdt_pool)
goto free_cmd_pool;
bd_tbl_sz = BNX2FC_MAX_BDS_PER_CMD * sizeof(struct fcoe_bd_ctx);
for (i = 0; i < num_ios; i++) {
bdt_info = cmgr->io_bdt_pool[i];
if (bdt_info->bd_tbl) {
dma_free_coherent(&hba->pcidev->dev, bd_tbl_sz,
bdt_info->bd_tbl,
bdt_info->bd_tbl_dma);
bdt_info->bd_tbl = NULL;
}
}
/* Destroy io_bdt pool */
for (i = 0; i < num_ios; i++) {
kfree(cmgr->io_bdt_pool[i]);
cmgr->io_bdt_pool[i] = NULL;
}
kfree(cmgr->io_bdt_pool);
cmgr->io_bdt_pool = NULL;
free_cmd_pool:
kfree(cmgr->free_list_lock);
/* Destroy cmd pool */
if (!cmgr->free_list)
goto free_cmgr;
for (i = 0; i < num_possible_cpus() + 1; i++) {
struct bnx2fc_cmd *tmp, *io_req;
list_for_each_entry_safe(io_req, tmp,
&cmgr->free_list[i], link) {
list_del(&io_req->link);
kfree(io_req);
}
}
kfree(cmgr->free_list);
free_cmgr:
/* Free command manager itself */
kfree(cmgr);
}
struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type)
{
struct fcoe_port *port = tgt->port;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_cmd_mgr *cmd_mgr = interface->hba->cmd_mgr;
struct bnx2fc_cmd *io_req;
struct list_head *listp;
struct io_bdt *bd_tbl;
int index = RESERVE_FREE_LIST_INDEX;
u32 free_sqes;
u32 max_sqes;
u16 xid;
max_sqes = tgt->max_sqes;
switch (type) {
case BNX2FC_TASK_MGMT_CMD:
max_sqes = BNX2FC_TM_MAX_SQES;
break;
case BNX2FC_ELS:
max_sqes = BNX2FC_ELS_MAX_SQES;
break;
default:
break;
}
/*
* NOTE: Free list insertions and deletions are protected with
* cmgr lock
*/
spin_lock_bh(&cmd_mgr->free_list_lock[index]);
free_sqes = atomic_read(&tgt->free_sqes);
if ((list_empty(&(cmd_mgr->free_list[index]))) ||
(tgt->num_active_ios.counter >= max_sqes) ||
(free_sqes + max_sqes <= BNX2FC_SQ_WQES_MAX)) {
BNX2FC_TGT_DBG(tgt, "No free els_tm cmds available "
"ios(%d):sqes(%d)\n",
tgt->num_active_ios.counter, tgt->max_sqes);
if (list_empty(&(cmd_mgr->free_list[index])))
printk(KERN_ERR PFX "elstm_alloc: list_empty\n");
spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
return NULL;
}
listp = (struct list_head *)
cmd_mgr->free_list[index].next;
list_del_init(listp);
io_req = (struct bnx2fc_cmd *) listp;
xid = io_req->xid;
cmd_mgr->cmds[xid] = io_req;
atomic_inc(&tgt->num_active_ios);
atomic_dec(&tgt->free_sqes);
spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
INIT_LIST_HEAD(&io_req->link);
io_req->port = port;
io_req->cmd_mgr = cmd_mgr;
io_req->req_flags = 0;
io_req->cmd_type = type;
/* Bind io_bdt for this io_req */
/* Have a static link between io_req and io_bdt_pool */
bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
bd_tbl->io_req = io_req;
/* Hold the io_req against deletion */
kref_init(&io_req->refcount);
return io_req;
}
struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt)
{
struct fcoe_port *port = tgt->port;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_cmd_mgr *cmd_mgr = interface->hba->cmd_mgr;
struct bnx2fc_cmd *io_req;
struct list_head *listp;
struct io_bdt *bd_tbl;
u32 free_sqes;
u32 max_sqes;
u16 xid;
int index = raw_smp_processor_id();
max_sqes = BNX2FC_SCSI_MAX_SQES;
/*
* NOTE: Free list insertions and deletions are protected with
* cmgr lock
*/
spin_lock_bh(&cmd_mgr->free_list_lock[index]);
free_sqes = atomic_read(&tgt->free_sqes);
if ((list_empty(&cmd_mgr->free_list[index])) ||
(tgt->num_active_ios.counter >= max_sqes) ||
(free_sqes + max_sqes <= BNX2FC_SQ_WQES_MAX)) {
spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
return NULL;
}
listp = (struct list_head *)
cmd_mgr->free_list[index].next;
list_del_init(listp);
io_req = (struct bnx2fc_cmd *) listp;
xid = io_req->xid;
cmd_mgr->cmds[xid] = io_req;
atomic_inc(&tgt->num_active_ios);
atomic_dec(&tgt->free_sqes);
spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
INIT_LIST_HEAD(&io_req->link);
io_req->port = port;
io_req->cmd_mgr = cmd_mgr;
io_req->req_flags = 0;
/* Bind io_bdt for this io_req */
/* Have a static link between io_req and io_bdt_pool */
bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
bd_tbl->io_req = io_req;
/* Hold the io_req against deletion */
kref_init(&io_req->refcount);
return io_req;
}
void bnx2fc_cmd_release(struct kref *ref)
{
struct bnx2fc_cmd *io_req = container_of(ref,
struct bnx2fc_cmd, refcount);
struct bnx2fc_cmd_mgr *cmd_mgr = io_req->cmd_mgr;
int index;
if (io_req->cmd_type == BNX2FC_SCSI_CMD)
index = io_req->xid % num_possible_cpus();
else
index = RESERVE_FREE_LIST_INDEX;
spin_lock_bh(&cmd_mgr->free_list_lock[index]);
if (io_req->cmd_type != BNX2FC_SCSI_CMD)
bnx2fc_free_mp_resc(io_req);
cmd_mgr->cmds[io_req->xid] = NULL;
/* Delete IO from retire queue */
list_del_init(&io_req->link);
/* Add it to the free list */
list_add(&io_req->link,
&cmd_mgr->free_list[index]);
atomic_dec(&io_req->tgt->num_active_ios);
spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
}
static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req)
{
struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
struct bnx2fc_interface *interface = io_req->port->priv;
struct bnx2fc_hba *hba = interface->hba;
size_t sz = sizeof(struct fcoe_bd_ctx);
/* clear tm flags */
mp_req->tm_flags = 0;
if (mp_req->mp_req_bd) {
dma_free_coherent(&hba->pcidev->dev, sz,
mp_req->mp_req_bd,
mp_req->mp_req_bd_dma);
mp_req->mp_req_bd = NULL;
}
if (mp_req->mp_resp_bd) {
dma_free_coherent(&hba->pcidev->dev, sz,
mp_req->mp_resp_bd,
mp_req->mp_resp_bd_dma);
mp_req->mp_resp_bd = NULL;
}
if (mp_req->req_buf) {
dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
mp_req->req_buf,
mp_req->req_buf_dma);
mp_req->req_buf = NULL;
}
if (mp_req->resp_buf) {
dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
mp_req->resp_buf,
mp_req->resp_buf_dma);
mp_req->resp_buf = NULL;
}
}
int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req)
{
struct bnx2fc_mp_req *mp_req;
struct fcoe_bd_ctx *mp_req_bd;
struct fcoe_bd_ctx *mp_resp_bd;
struct bnx2fc_interface *interface = io_req->port->priv;
struct bnx2fc_hba *hba = interface->hba;
dma_addr_t addr;
size_t sz;
mp_req = (struct bnx2fc_mp_req *)&(io_req->mp_req);
memset(mp_req, 0, sizeof(struct bnx2fc_mp_req));
if (io_req->cmd_type != BNX2FC_ELS) {
mp_req->req_len = sizeof(struct fcp_cmnd);
io_req->data_xfer_len = mp_req->req_len;
} else
mp_req->req_len = io_req->data_xfer_len;
mp_req->req_buf = dma_alloc_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
&mp_req->req_buf_dma,
GFP_ATOMIC);
if (!mp_req->req_buf) {
printk(KERN_ERR PFX "unable to alloc MP req buffer\n");
bnx2fc_free_mp_resc(io_req);
return FAILED;
}
mp_req->resp_buf = dma_alloc_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
&mp_req->resp_buf_dma,
GFP_ATOMIC);
if (!mp_req->resp_buf) {
printk(KERN_ERR PFX "unable to alloc TM resp buffer\n");
bnx2fc_free_mp_resc(io_req);
return FAILED;
}
memset(mp_req->req_buf, 0, CNIC_PAGE_SIZE);
memset(mp_req->resp_buf, 0, CNIC_PAGE_SIZE);
/* Allocate and map mp_req_bd and mp_resp_bd */
sz = sizeof(struct fcoe_bd_ctx);
mp_req->mp_req_bd = dma_alloc_coherent(&hba->pcidev->dev, sz,
&mp_req->mp_req_bd_dma,
GFP_ATOMIC);
if (!mp_req->mp_req_bd) {
printk(KERN_ERR PFX "unable to alloc MP req bd\n");
bnx2fc_free_mp_resc(io_req);
return FAILED;
}
mp_req->mp_resp_bd = dma_alloc_coherent(&hba->pcidev->dev, sz,
&mp_req->mp_resp_bd_dma,
GFP_ATOMIC);
if (!mp_req->mp_resp_bd) {
printk(KERN_ERR PFX "unable to alloc MP resp bd\n");
bnx2fc_free_mp_resc(io_req);
return FAILED;
}
/* Fill bd table */
addr = mp_req->req_buf_dma;
mp_req_bd = mp_req->mp_req_bd;
mp_req_bd->buf_addr_lo = (u32)addr & 0xffffffff;
mp_req_bd->buf_addr_hi = (u32)((u64)addr >> 32);
mp_req_bd->buf_len = CNIC_PAGE_SIZE;
mp_req_bd->flags = 0;
/*
* MP buffer is either a task mgmt command or an ELS.
* So the assumption is that it consumes a single bd
* entry in the bd table
*/
mp_resp_bd = mp_req->mp_resp_bd;
addr = mp_req->resp_buf_dma;
mp_resp_bd->buf_addr_lo = (u32)addr & 0xffffffff;
mp_resp_bd->buf_addr_hi = (u32)((u64)addr >> 32);
mp_resp_bd->buf_len = CNIC_PAGE_SIZE;
mp_resp_bd->flags = 0;
return SUCCESS;
}
static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
{
struct fc_lport *lport;
struct fc_rport *rport;
struct fc_rport_libfc_priv *rp;
struct fcoe_port *port;
struct bnx2fc_interface *interface;
struct bnx2fc_rport *tgt;
struct bnx2fc_cmd *io_req;
struct bnx2fc_mp_req *tm_req;
struct fcoe_task_ctx_entry *task;
struct fcoe_task_ctx_entry *task_page;
struct Scsi_Host *host = sc_cmd->device->host;
struct fc_frame_header *fc_hdr;
struct fcp_cmnd *fcp_cmnd;
int task_idx, index;
int rc = SUCCESS;
u16 xid;
u32 sid, did;
unsigned long start = jiffies;
lport = shost_priv(host);
rport = starget_to_rport(scsi_target(sc_cmd->device));
port = lport_priv(lport);
interface = port->priv;
if (rport == NULL) {
printk(KERN_ERR PFX "device_reset: rport is NULL\n");
rc = FAILED;
goto tmf_err;
}
rp = rport->dd_data;
rc = fc_block_scsi_eh(sc_cmd);
if (rc)
return rc;
if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
printk(KERN_ERR PFX "device_reset: link is not ready\n");
rc = FAILED;
goto tmf_err;
}
/* rport and tgt are allocated together, so tgt should be non-NULL */
tgt = (struct bnx2fc_rport *)&rp[1];
if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
printk(KERN_ERR PFX "device_reset: tgt not offloaded\n");
rc = FAILED;
goto tmf_err;
}
retry_tmf:
io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_TASK_MGMT_CMD);
if (!io_req) {
if (time_after(jiffies, start + HZ)) {
printk(KERN_ERR PFX "tmf: Failed TMF");
rc = FAILED;
goto tmf_err;
}
msleep(20);
goto retry_tmf;
}
/* Initialize rest of io_req fields */
io_req->sc_cmd = sc_cmd;
io_req->port = port;
io_req->tgt = tgt;
tm_req = (struct bnx2fc_mp_req *)&(io_req->mp_req);
rc = bnx2fc_init_mp_req(io_req);
if (rc == FAILED) {
printk(KERN_ERR PFX "Task mgmt MP request init failed\n");
spin_lock_bh(&tgt->tgt_lock);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
goto tmf_err;
}
/* Set TM flags */
io_req->io_req_flags = 0;
tm_req->tm_flags = tm_flags;
/* Fill FCP_CMND */
bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)tm_req->req_buf);
fcp_cmnd = (struct fcp_cmnd *)tm_req->req_buf;
memset(fcp_cmnd->fc_cdb, 0, sc_cmd->cmd_len);
fcp_cmnd->fc_dl = 0;
/* Fill FC header */
fc_hdr = &(tm_req->req_fc_hdr);
sid = tgt->sid;
did = rport->port_id;
__fc_fill_fc_hdr(fc_hdr, FC_RCTL_DD_UNSOL_CMD, did, sid,
FC_TYPE_FCP, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
FC_FC_SEQ_INIT, 0);
/* Obtain exchange id */
xid = io_req->xid;
BNX2FC_TGT_DBG(tgt, "Initiate TMF - xid = 0x%x\n", xid);
task_idx = xid/BNX2FC_TASKS_PER_PAGE;
index = xid % BNX2FC_TASKS_PER_PAGE;
/* Initialize task context for this IO request */
task_page = (struct fcoe_task_ctx_entry *)
interface->hba->task_ctx[task_idx];
task = &(task_page[index]);
bnx2fc_init_mp_task(io_req, task);
bnx2fc_priv(sc_cmd)->io_req = io_req;
/* Obtain free SQ entry */
spin_lock_bh(&tgt->tgt_lock);
bnx2fc_add_2_sq(tgt, xid);
/* Enqueue the io_req to active_tm_queue */
io_req->on_tmf_queue = 1;
list_add_tail(&io_req->link, &tgt->active_tm_queue);
init_completion(&io_req->abts_done);
io_req->wait_for_abts_comp = 1;
/* Ring doorbell */
bnx2fc_ring_doorbell(tgt);
spin_unlock_bh(&tgt->tgt_lock);
rc = wait_for_completion_timeout(&io_req->abts_done,
interface->tm_timeout * HZ);
spin_lock_bh(&tgt->tgt_lock);
io_req->wait_for_abts_comp = 0;
if (!(test_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags))) {
set_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags);
if (io_req->on_tmf_queue) {
list_del_init(&io_req->link);
io_req->on_tmf_queue = 0;
}
io_req->wait_for_cleanup_comp = 1;
init_completion(&io_req->cleanup_done);
bnx2fc_initiate_cleanup(io_req);
spin_unlock_bh(&tgt->tgt_lock);
rc = wait_for_completion_timeout(&io_req->cleanup_done,
BNX2FC_FW_TIMEOUT);
spin_lock_bh(&tgt->tgt_lock);
io_req->wait_for_cleanup_comp = 0;
if (!rc)
kref_put(&io_req->refcount, bnx2fc_cmd_release);
}
spin_unlock_bh(&tgt->tgt_lock);
if (!rc) {
BNX2FC_TGT_DBG(tgt, "task mgmt command failed...\n");
rc = FAILED;
} else {
BNX2FC_TGT_DBG(tgt, "task mgmt command success...\n");
rc = SUCCESS;
}
tmf_err:
return rc;
}
int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req)
{
struct fc_lport *lport;
struct bnx2fc_rport *tgt = io_req->tgt;
struct fc_rport *rport = tgt->rport;
struct fc_rport_priv *rdata = tgt->rdata;
struct bnx2fc_interface *interface;
struct fcoe_port *port;
struct bnx2fc_cmd *abts_io_req;
struct fcoe_task_ctx_entry *task;
struct fcoe_task_ctx_entry *task_page;
struct fc_frame_header *fc_hdr;
struct bnx2fc_mp_req *abts_req;
int task_idx, index;
u32 sid, did;
u16 xid;
int rc = SUCCESS;
u32 r_a_tov = rdata->r_a_tov;
/* called with tgt_lock held */
BNX2FC_IO_DBG(io_req, "Entered bnx2fc_initiate_abts\n");
port = io_req->port;
interface = port->priv;
lport = port->lport;
if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
printk(KERN_ERR PFX "initiate_abts: tgt not offloaded\n");
rc = FAILED;
goto abts_err;
}
if (rport == NULL) {
printk(KERN_ERR PFX "initiate_abts: rport is NULL\n");
rc = FAILED;
goto abts_err;
}
if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
printk(KERN_ERR PFX "initiate_abts: link is not ready\n");
rc = FAILED;
goto abts_err;
}
abts_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ABTS);
if (!abts_io_req) {
printk(KERN_ERR PFX "abts: couldn't allocate cmd\n");
rc = FAILED;
goto abts_err;
}
/* Initialize rest of io_req fields */
abts_io_req->sc_cmd = NULL;
abts_io_req->port = port;
abts_io_req->tgt = tgt;
abts_io_req->data_xfer_len = 0; /* No data transfer for ABTS */
abts_req = (struct bnx2fc_mp_req *)&(abts_io_req->mp_req);
memset(abts_req, 0, sizeof(struct bnx2fc_mp_req));
/* Fill FC header */
fc_hdr = &(abts_req->req_fc_hdr);
/* Obtain oxid and rxid for the original exchange to be aborted */
fc_hdr->fh_ox_id = htons(io_req->xid);
fc_hdr->fh_rx_id = htons(io_req->task->rxwr_txrd.var_ctx.rx_id);
sid = tgt->sid;
did = rport->port_id;
__fc_fill_fc_hdr(fc_hdr, FC_RCTL_BA_ABTS, did, sid,
FC_TYPE_BLS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
FC_FC_SEQ_INIT, 0);
xid = abts_io_req->xid;
BNX2FC_IO_DBG(abts_io_req, "ABTS io_req\n");
task_idx = xid/BNX2FC_TASKS_PER_PAGE;
index = xid % BNX2FC_TASKS_PER_PAGE;
/* Initialize task context for this IO request */
task_page = (struct fcoe_task_ctx_entry *)
interface->hba->task_ctx[task_idx];
task = &(task_page[index]);
bnx2fc_init_mp_task(abts_io_req, task);
/*
* ABTS task is a temporary task that will be cleaned up
* irrespective of ABTS response. We need to start the timer
* for the original exchange, as the CQE is posted for the original
* IO request.
*
* Timer for ABTS is started only when it is originated by a
* TM request. For the ABTS issued as part of ULP timeout,
* scsi-ml maintains the timers.
*/
/* if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags))*/
bnx2fc_cmd_timer_set(io_req, 2 * r_a_tov);
/* Obtain free SQ entry */
bnx2fc_add_2_sq(tgt, xid);
/* Ring doorbell */
bnx2fc_ring_doorbell(tgt);
abts_err:
return rc;
}
int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset,
enum fc_rctl r_ctl)
{
struct bnx2fc_rport *tgt = orig_io_req->tgt;
struct bnx2fc_interface *interface;
struct fcoe_port *port;
struct bnx2fc_cmd *seq_clnp_req;
struct fcoe_task_ctx_entry *task;
struct fcoe_task_ctx_entry *task_page;
struct bnx2fc_els_cb_arg *cb_arg = NULL;
int task_idx, index;
u16 xid;
int rc = 0;
BNX2FC_IO_DBG(orig_io_req, "bnx2fc_initiate_seq_cleanup xid = 0x%x\n",
orig_io_req->xid);
kref_get(&orig_io_req->refcount);
port = orig_io_req->port;
interface = port->priv;
cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
if (!cb_arg) {
printk(KERN_ERR PFX "Unable to alloc cb_arg for seq clnup\n");
rc = -ENOMEM;
goto cleanup_err;
}
seq_clnp_req = bnx2fc_elstm_alloc(tgt, BNX2FC_SEQ_CLEANUP);
if (!seq_clnp_req) {
printk(KERN_ERR PFX "cleanup: couldn't allocate cmd\n");
rc = -ENOMEM;
kfree(cb_arg);
goto cleanup_err;
}
/* Initialize rest of io_req fields */
seq_clnp_req->sc_cmd = NULL;
seq_clnp_req->port = port;
seq_clnp_req->tgt = tgt;
seq_clnp_req->data_xfer_len = 0; /* No data transfer for cleanup */
xid = seq_clnp_req->xid;
task_idx = xid/BNX2FC_TASKS_PER_PAGE;
index = xid % BNX2FC_TASKS_PER_PAGE;
/* Initialize task context for this IO request */
task_page = (struct fcoe_task_ctx_entry *)
interface->hba->task_ctx[task_idx];
task = &(task_page[index]);
cb_arg->aborted_io_req = orig_io_req;
cb_arg->io_req = seq_clnp_req;
cb_arg->r_ctl = r_ctl;
cb_arg->offset = offset;
seq_clnp_req->cb_arg = cb_arg;
printk(KERN_ERR PFX "call init_seq_cleanup_task\n");
bnx2fc_init_seq_cleanup_task(seq_clnp_req, task, orig_io_req, offset);
/* Obtain free SQ entry */
bnx2fc_add_2_sq(tgt, xid);
/* Ring doorbell */
bnx2fc_ring_doorbell(tgt);
cleanup_err:
return rc;
}
int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req)
{
struct bnx2fc_rport *tgt = io_req->tgt;
struct bnx2fc_interface *interface;
struct fcoe_port *port;
struct bnx2fc_cmd *cleanup_io_req;
struct fcoe_task_ctx_entry *task;
struct fcoe_task_ctx_entry *task_page;
int task_idx, index;
u16 xid, orig_xid;
int rc = 0;
/* ASSUMPTION: called with tgt_lock held */
BNX2FC_IO_DBG(io_req, "Entered bnx2fc_initiate_cleanup\n");
port = io_req->port;
interface = port->priv;
cleanup_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_CLEANUP);
if (!cleanup_io_req) {
printk(KERN_ERR PFX "cleanup: couldn't allocate cmd\n");
rc = -1;
goto cleanup_err;
}
/* Initialize rest of io_req fields */
cleanup_io_req->sc_cmd = NULL;
cleanup_io_req->port = port;
cleanup_io_req->tgt = tgt;
cleanup_io_req->data_xfer_len = 0; /* No data transfer for cleanup */
xid = cleanup_io_req->xid;
task_idx = xid/BNX2FC_TASKS_PER_PAGE;
index = xid % BNX2FC_TASKS_PER_PAGE;
/* Initialize task context for this IO request */
task_page = (struct fcoe_task_ctx_entry *)
interface->hba->task_ctx[task_idx];
task = &(task_page[index]);
orig_xid = io_req->xid;
BNX2FC_IO_DBG(io_req, "CLEANUP io_req xid = 0x%x\n", xid);
bnx2fc_init_cleanup_task(cleanup_io_req, task, orig_xid);
/* Obtain free SQ entry */
bnx2fc_add_2_sq(tgt, xid);
/* Set flag that cleanup request is pending with the firmware */
set_bit(BNX2FC_FLAG_ISSUE_CLEANUP_REQ, &io_req->req_flags);
/* Ring doorbell */
bnx2fc_ring_doorbell(tgt);
cleanup_err:
return rc;
}
/**
* bnx2fc_eh_target_reset: Reset a target
*
* @sc_cmd: SCSI command
*
* Set from SCSI host template to send task mgmt command to the target
* and wait for the response
*/
int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd)
{
return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
}
/**
* bnx2fc_eh_device_reset - Reset a single LUN
*
* @sc_cmd: SCSI command
*
* Set from SCSI host template to send task mgmt command to the target
* and wait for the response
*/
int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd)
{
return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
}
static int bnx2fc_abts_cleanup(struct bnx2fc_cmd *io_req)
__must_hold(&tgt->tgt_lock)
{
struct bnx2fc_rport *tgt = io_req->tgt;
unsigned int time_left;
init_completion(&io_req->cleanup_done);
io_req->wait_for_cleanup_comp = 1;
bnx2fc_initiate_cleanup(io_req);
spin_unlock_bh(&tgt->tgt_lock);
/*
* Can't wait forever on cleanup response lest we let the SCSI error
* handler wait forever
*/
time_left = wait_for_completion_timeout(&io_req->cleanup_done,
BNX2FC_FW_TIMEOUT);
if (!time_left) {
BNX2FC_IO_DBG(io_req, "%s(): Wait for cleanup timed out.\n",
__func__);
/*
* Put the extra reference to the SCSI command since it would
* not have been returned in this case.
*/
kref_put(&io_req->refcount, bnx2fc_cmd_release);
}
spin_lock_bh(&tgt->tgt_lock);
io_req->wait_for_cleanup_comp = 0;
return SUCCESS;
}
/**
* bnx2fc_eh_abort - eh_abort_handler api to abort an outstanding
* SCSI command
*
* @sc_cmd: SCSI_ML command pointer
*
* SCSI abort request handler
*/
int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
{
struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
struct fc_rport_libfc_priv *rp = rport->dd_data;
struct bnx2fc_cmd *io_req;
struct fc_lport *lport;
struct bnx2fc_rport *tgt;
int rc;
unsigned int time_left;
rc = fc_block_scsi_eh(sc_cmd);
if (rc)
return rc;
lport = shost_priv(sc_cmd->device->host);
if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
printk(KERN_ERR PFX "eh_abort: link not ready\n");
return FAILED;
}
tgt = (struct bnx2fc_rport *)&rp[1];
BNX2FC_TGT_DBG(tgt, "Entered bnx2fc_eh_abort\n");
spin_lock_bh(&tgt->tgt_lock);
io_req = bnx2fc_priv(sc_cmd)->io_req;
if (!io_req) {
/* Command might have just completed */
printk(KERN_ERR PFX "eh_abort: io_req is NULL\n");
spin_unlock_bh(&tgt->tgt_lock);
return SUCCESS;
}
BNX2FC_IO_DBG(io_req, "eh_abort - refcnt = %d\n",
kref_read(&io_req->refcount));
/* Hold IO request across abort processing */
kref_get(&io_req->refcount);
BUG_ON(tgt != io_req->tgt);
/* Remove the io_req from the active_q. */
/*
* Task Mgmt functions (LUN RESET & TGT RESET) will not
* issue an ABTS on this particular IO req, as the
* io_req is no longer in the active_q.
*/
if (tgt->flush_in_prog) {
printk(KERN_ERR PFX "eh_abort: io_req (xid = 0x%x) "
"flush in progress\n", io_req->xid);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
return SUCCESS;
}
if (io_req->on_active_queue == 0) {
printk(KERN_ERR PFX "eh_abort: io_req (xid = 0x%x) "
"not on active_q\n", io_req->xid);
/*
* The IO is still with the FW.
* Return failure and let SCSI-ml retry eh_abort.
*/
spin_unlock_bh(&tgt->tgt_lock);
return FAILED;
}
/*
* Only eh_abort processing will remove the IO from
* active_cmd_q before processing the request. this is
* done to avoid race conditions between IOs aborted
* as part of task management completion and eh_abort
* processing
*/
list_del_init(&io_req->link);
io_req->on_active_queue = 0;
/* Move IO req to retire queue */
list_add_tail(&io_req->link, &tgt->io_retire_queue);
init_completion(&io_req->abts_done);
init_completion(&io_req->cleanup_done);
if (test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
printk(KERN_ERR PFX "eh_abort: io_req (xid = 0x%x) "
"already in abts processing\n", io_req->xid);
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount,
bnx2fc_cmd_release); /* drop timer hold */
/*
* We don't want to hold off the upper layer timer so simply
* cleanup the command and return that I/O was successfully
* aborted.
*/
bnx2fc_abts_cleanup(io_req);
/* This only occurs when an task abort was requested while ABTS
is in progress. Setting the IO_CLEANUP flag will skip the
RRQ process in the case when the fw generated SCSI_CMD cmpl
was a result from the ABTS request rather than the CLEANUP
request */
set_bit(BNX2FC_FLAG_IO_CLEANUP, &io_req->req_flags);
rc = FAILED;
goto done;
}
/* Cancel the current timer running on this io_req */
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount,
bnx2fc_cmd_release); /* drop timer hold */
set_bit(BNX2FC_FLAG_EH_ABORT, &io_req->req_flags);
io_req->wait_for_abts_comp = 1;
rc = bnx2fc_initiate_abts(io_req);
if (rc == FAILED) {
io_req->wait_for_cleanup_comp = 1;
bnx2fc_initiate_cleanup(io_req);
spin_unlock_bh(&tgt->tgt_lock);
wait_for_completion(&io_req->cleanup_done);
spin_lock_bh(&tgt->tgt_lock);
io_req->wait_for_cleanup_comp = 0;
goto done;
}
spin_unlock_bh(&tgt->tgt_lock);
/* Wait 2 * RA_TOV + 1 to be sure timeout function hasn't fired */
time_left = wait_for_completion_timeout(&io_req->abts_done,
msecs_to_jiffies(2 * rp->r_a_tov + 1));
if (time_left)
BNX2FC_IO_DBG(io_req,
"Timed out in eh_abort waiting for abts_done");
spin_lock_bh(&tgt->tgt_lock);
io_req->wait_for_abts_comp = 0;
if (test_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags)) {
BNX2FC_IO_DBG(io_req, "IO completed in a different context\n");
rc = SUCCESS;
} else if (!(test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
&io_req->req_flags))) {
/* Let the scsi-ml try to recover this command */
printk(KERN_ERR PFX "abort failed, xid = 0x%x\n",
io_req->xid);
/*
* Cleanup firmware residuals before returning control back
* to SCSI ML.
*/
rc = bnx2fc_abts_cleanup(io_req);
goto done;
} else {
/*
* We come here even when there was a race condition
* between timeout and abts completion, and abts
* completion happens just in time.
*/
BNX2FC_IO_DBG(io_req, "abort succeeded\n");
rc = SUCCESS;
bnx2fc_scsi_done(io_req, DID_ABORT);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
}
done:
/* release the reference taken in eh_abort */
kref_put(&io_req->refcount, bnx2fc_cmd_release);
spin_unlock_bh(&tgt->tgt_lock);
return rc;
}
void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnp_req,
struct fcoe_task_ctx_entry *task,
u8 rx_state)
{
struct bnx2fc_els_cb_arg *cb_arg = seq_clnp_req->cb_arg;
struct bnx2fc_cmd *orig_io_req = cb_arg->aborted_io_req;
u32 offset = cb_arg->offset;
enum fc_rctl r_ctl = cb_arg->r_ctl;
int rc = 0;
struct bnx2fc_rport *tgt = orig_io_req->tgt;
BNX2FC_IO_DBG(orig_io_req, "Entered process_cleanup_compl xid = 0x%x"
"cmd_type = %d\n",
seq_clnp_req->xid, seq_clnp_req->cmd_type);
if (rx_state == FCOE_TASK_RX_STATE_IGNORED_SEQUENCE_CLEANUP) {
printk(KERN_ERR PFX "seq cleanup ignored - xid = 0x%x\n",
seq_clnp_req->xid);
goto free_cb_arg;
}
spin_unlock_bh(&tgt->tgt_lock);
rc = bnx2fc_send_srr(orig_io_req, offset, r_ctl);
spin_lock_bh(&tgt->tgt_lock);
if (rc)
printk(KERN_ERR PFX "clnup_compl: Unable to send SRR"
" IO will abort\n");
seq_clnp_req->cb_arg = NULL;
kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
free_cb_arg:
kfree(cb_arg);
return;
}
void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
struct fcoe_task_ctx_entry *task,
u8 num_rq)
{
BNX2FC_IO_DBG(io_req, "Entered process_cleanup_compl "
"refcnt = %d, cmd_type = %d\n",
kref_read(&io_req->refcount), io_req->cmd_type);
/*
* Test whether there is a cleanup request pending. If not just
* exit.
*/
if (!test_and_clear_bit(BNX2FC_FLAG_ISSUE_CLEANUP_REQ,
&io_req->req_flags))
return;
/*
* If we receive a cleanup completion for this request then the
* firmware will not give us an abort completion for this request
* so clear any ABTS pending flags.
*/
if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags) &&
!test_bit(BNX2FC_FLAG_ABTS_DONE, &io_req->req_flags)) {
set_bit(BNX2FC_FLAG_ABTS_DONE, &io_req->req_flags);
if (io_req->wait_for_abts_comp)
complete(&io_req->abts_done);
}
bnx2fc_scsi_done(io_req, DID_ERROR);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
if (io_req->wait_for_cleanup_comp)
complete(&io_req->cleanup_done);
}
void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
struct fcoe_task_ctx_entry *task,
u8 num_rq)
{
u32 r_ctl;
u32 r_a_tov = FC_DEF_R_A_TOV;
u8 issue_rrq = 0;
struct bnx2fc_rport *tgt = io_req->tgt;
BNX2FC_IO_DBG(io_req, "Entered process_abts_compl xid = 0x%x"
"refcnt = %d, cmd_type = %d\n",
io_req->xid,
kref_read(&io_req->refcount), io_req->cmd_type);
if (test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
&io_req->req_flags)) {
BNX2FC_IO_DBG(io_req, "Timer context finished processing"
" this io\n");
return;
}
/*
* If we receive an ABTS completion here then we will not receive
* a cleanup completion so clear any cleanup pending flags.
*/
if (test_bit(BNX2FC_FLAG_ISSUE_CLEANUP_REQ, &io_req->req_flags)) {
clear_bit(BNX2FC_FLAG_ISSUE_CLEANUP_REQ, &io_req->req_flags);
if (io_req->wait_for_cleanup_comp)
complete(&io_req->cleanup_done);
}
/* Do not issue RRQ as this IO is already cleanedup */
if (test_and_set_bit(BNX2FC_FLAG_IO_CLEANUP,
&io_req->req_flags))
goto io_compl;
/*
* For ABTS issued due to SCSI eh_abort_handler, timeout
* values are maintained by scsi-ml itself. Cancel timeout
* in case ABTS issued as part of task management function
* or due to FW error.
*/
if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags))
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount,
bnx2fc_cmd_release); /* drop timer hold */
r_ctl = (u8)task->rxwr_only.union_ctx.comp_info.abts_rsp.r_ctl;
switch (r_ctl) {
case FC_RCTL_BA_ACC:
/*
* Dont release this cmd yet. It will be relesed
* after we get RRQ response
*/
BNX2FC_IO_DBG(io_req, "ABTS response - ACC Send RRQ\n");
issue_rrq = 1;
break;
case FC_RCTL_BA_RJT:
BNX2FC_IO_DBG(io_req, "ABTS response - RJT\n");
break;
default:
printk(KERN_ERR PFX "Unknown ABTS response\n");
break;
}
if (issue_rrq) {
BNX2FC_IO_DBG(io_req, "Issue RRQ after R_A_TOV\n");
set_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
}
set_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags);
bnx2fc_cmd_timer_set(io_req, r_a_tov);
io_compl:
if (io_req->wait_for_abts_comp) {
if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
&io_req->req_flags))
complete(&io_req->abts_done);
} else {
/*
* We end up here when ABTS is issued as
* in asynchronous context, i.e., as part
* of task management completion, or
* when FW error is received or when the
* ABTS is issued when the IO is timed
* out.
*/
if (io_req->on_active_queue) {
list_del_init(&io_req->link);
io_req->on_active_queue = 0;
/* Move IO req to retire queue */
list_add_tail(&io_req->link, &tgt->io_retire_queue);
}
bnx2fc_scsi_done(io_req, DID_ERROR);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
}
}
static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req)
{
struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
struct bnx2fc_rport *tgt = io_req->tgt;
struct bnx2fc_cmd *cmd, *tmp;
u64 tm_lun = sc_cmd->device->lun;
u64 lun;
int rc = 0;
/* called with tgt_lock held */
BNX2FC_IO_DBG(io_req, "Entered bnx2fc_lun_reset_cmpl\n");
/*
* Walk thru the active_ios queue and ABORT the IO
* that matches with the LUN that was reset
*/
list_for_each_entry_safe(cmd, tmp, &tgt->active_cmd_queue, link) {
BNX2FC_TGT_DBG(tgt, "LUN RST cmpl: scan for pending IOs\n");
lun = cmd->sc_cmd->device->lun;
if (lun == tm_lun) {
/* Initiate ABTS on this cmd */
if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
&cmd->req_flags)) {
/* cancel the IO timeout */
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount,
bnx2fc_cmd_release);
/* timer hold */
rc = bnx2fc_initiate_abts(cmd);
/* abts shouldn't fail in this context */
WARN_ON(rc != SUCCESS);
} else
printk(KERN_ERR PFX "lun_rst: abts already in"
" progress for this IO 0x%x\n",
cmd->xid);
}
}
}
static void bnx2fc_tgt_reset_cmpl(struct bnx2fc_cmd *io_req)
{
struct bnx2fc_rport *tgt = io_req->tgt;
struct bnx2fc_cmd *cmd, *tmp;
int rc = 0;
/* called with tgt_lock held */
BNX2FC_IO_DBG(io_req, "Entered bnx2fc_tgt_reset_cmpl\n");
/*
* Walk thru the active_ios queue and ABORT the IO
* that matches with the LUN that was reset
*/
list_for_each_entry_safe(cmd, tmp, &tgt->active_cmd_queue, link) {
BNX2FC_TGT_DBG(tgt, "TGT RST cmpl: scan for pending IOs\n");
/* Initiate ABTS */
if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
&cmd->req_flags)) {
/* cancel the IO timeout */
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount,
bnx2fc_cmd_release); /* timer hold */
rc = bnx2fc_initiate_abts(cmd);
/* abts shouldn't fail in this context */
WARN_ON(rc != SUCCESS);
} else
printk(KERN_ERR PFX "tgt_rst: abts already in progress"
" for this IO 0x%x\n", cmd->xid);
}
}
void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
struct fcoe_task_ctx_entry *task, u8 num_rq,
unsigned char *rq_data)
{
struct bnx2fc_mp_req *tm_req;
struct fc_frame_header *fc_hdr;
struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
u64 *hdr;
u64 *temp_hdr;
void *rsp_buf;
/* Called with tgt_lock held */
BNX2FC_IO_DBG(io_req, "Entered process_tm_compl\n");
if (!(test_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags)))
set_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags);
else {
/* TM has already timed out and we got
* delayed completion. Ignore completion
* processing.
*/
return;
}
tm_req = &(io_req->mp_req);
fc_hdr = &(tm_req->resp_fc_hdr);
hdr = (u64 *)fc_hdr;
temp_hdr = (u64 *)
&task->rxwr_only.union_ctx.comp_info.mp_rsp.fc_hdr;
hdr[0] = cpu_to_be64(temp_hdr[0]);
hdr[1] = cpu_to_be64(temp_hdr[1]);
hdr[2] = cpu_to_be64(temp_hdr[2]);
tm_req->resp_len =
task->rxwr_only.union_ctx.comp_info.mp_rsp.mp_payload_len;
rsp_buf = tm_req->resp_buf;
if (fc_hdr->fh_r_ctl == FC_RCTL_DD_CMD_STATUS) {
bnx2fc_parse_fcp_rsp(io_req,
(struct fcoe_fcp_rsp_payload *)
rsp_buf, num_rq, rq_data);
if (io_req->fcp_rsp_code == 0) {
/* TM successful */
if (tm_req->tm_flags & FCP_TMF_LUN_RESET)
bnx2fc_lun_reset_cmpl(io_req);
else if (tm_req->tm_flags & FCP_TMF_TGT_RESET)
bnx2fc_tgt_reset_cmpl(io_req);
}
} else {
printk(KERN_ERR PFX "tmf's fc_hdr r_ctl = 0x%x\n",
fc_hdr->fh_r_ctl);
}
if (!bnx2fc_priv(sc_cmd)->io_req) {
printk(KERN_ERR PFX "tm_compl: io_req is NULL\n");
return;
}
switch (io_req->fcp_status) {
case FC_GOOD:
if (io_req->cdb_status == 0) {
/* Good IO completion */
sc_cmd->result = DID_OK << 16;
} else {
/* Transport status is good, SCSI status not good */
sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
}
if (io_req->fcp_resid)
scsi_set_resid(sc_cmd, io_req->fcp_resid);
break;
default:
BNX2FC_IO_DBG(io_req, "process_tm_compl: fcp_status = %d\n",
io_req->fcp_status);
break;
}
sc_cmd = io_req->sc_cmd;
io_req->sc_cmd = NULL;
/* check if the io_req exists in tgt's tmf_q */
if (io_req->on_tmf_queue) {
list_del_init(&io_req->link);
io_req->on_tmf_queue = 0;
} else {
printk(KERN_ERR PFX "Command not on active_cmd_queue!\n");
return;
}
bnx2fc_priv(sc_cmd)->io_req = NULL;
scsi_done(sc_cmd);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
if (io_req->wait_for_abts_comp) {
BNX2FC_IO_DBG(io_req, "tm_compl - wake up the waiter\n");
complete(&io_req->abts_done);
}
}
static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
int bd_index)
{
struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
int frag_size, sg_frags;
sg_frags = 0;
while (sg_len) {
if (sg_len >= BNX2FC_BD_SPLIT_SZ)
frag_size = BNX2FC_BD_SPLIT_SZ;
else
frag_size = sg_len;
bd[bd_index + sg_frags].buf_addr_lo = addr & 0xffffffff;
bd[bd_index + sg_frags].buf_addr_hi = addr >> 32;
bd[bd_index + sg_frags].buf_len = (u16)frag_size;
bd[bd_index + sg_frags].flags = 0;
addr += (u64) frag_size;
sg_frags++;
sg_len -= frag_size;
}
return sg_frags;
}
static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req)
{
struct bnx2fc_interface *interface = io_req->port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct scsi_cmnd *sc = io_req->sc_cmd;
struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
struct scatterlist *sg;
int byte_count = 0;
int sg_count = 0;
int bd_count = 0;
int sg_frags;
unsigned int sg_len;
u64 addr;
int i;
WARN_ON(scsi_sg_count(sc) > BNX2FC_MAX_BDS_PER_CMD);
/*
* Use dma_map_sg directly to ensure we're using the correct
* dev struct off of pcidev.
*/
sg_count = dma_map_sg(&hba->pcidev->dev, scsi_sglist(sc),
scsi_sg_count(sc), sc->sc_data_direction);
scsi_for_each_sg(sc, sg, sg_count, i) {
sg_len = sg_dma_len(sg);
addr = sg_dma_address(sg);
if (sg_len > BNX2FC_MAX_BD_LEN) {
sg_frags = bnx2fc_split_bd(io_req, addr, sg_len,
bd_count);
} else {
sg_frags = 1;
bd[bd_count].buf_addr_lo = addr & 0xffffffff;
bd[bd_count].buf_addr_hi = addr >> 32;
bd[bd_count].buf_len = (u16)sg_len;
bd[bd_count].flags = 0;
}
bd_count += sg_frags;
byte_count += sg_len;
}
if (byte_count != scsi_bufflen(sc))
printk(KERN_ERR PFX "byte_count = %d != scsi_bufflen = %d, "
"task_id = 0x%x\n", byte_count, scsi_bufflen(sc),
io_req->xid);
return bd_count;
}
static int bnx2fc_build_bd_list_from_sg(struct bnx2fc_cmd *io_req)
{
struct scsi_cmnd *sc = io_req->sc_cmd;
struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
int bd_count;
if (scsi_sg_count(sc)) {
bd_count = bnx2fc_map_sg(io_req);
if (bd_count == 0)
return -ENOMEM;
} else {
bd_count = 0;
bd[0].buf_addr_lo = bd[0].buf_addr_hi = 0;
bd[0].buf_len = bd[0].flags = 0;
}
io_req->bd_tbl->bd_valid = bd_count;
/*
* Return the command to ML if BD count exceeds the max number
* that can be handled by FW.
*/
if (bd_count > BNX2FC_FW_MAX_BDS_PER_CMD) {
pr_err("bd_count = %d exceeded FW supported max BD(255), task_id = 0x%x\n",
bd_count, io_req->xid);
return -ENOMEM;
}
return 0;
}
static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req)
{
struct scsi_cmnd *sc = io_req->sc_cmd;
struct bnx2fc_interface *interface = io_req->port->priv;
struct bnx2fc_hba *hba = interface->hba;
/*
* Use dma_unmap_sg directly to ensure we're using the correct
* dev struct off of pcidev.
*/
if (io_req->bd_tbl->bd_valid && sc && scsi_sg_count(sc)) {
dma_unmap_sg(&hba->pcidev->dev, scsi_sglist(sc),
scsi_sg_count(sc), sc->sc_data_direction);
io_req->bd_tbl->bd_valid = 0;
}
}
void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
struct fcp_cmnd *fcp_cmnd)
{
struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd));
int_to_scsilun(sc_cmd->device->lun, &fcp_cmnd->fc_lun);
fcp_cmnd->fc_dl = htonl(io_req->data_xfer_len);
memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len);
fcp_cmnd->fc_cmdref = 0;
fcp_cmnd->fc_pri_ta = 0;
fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags;
fcp_cmnd->fc_flags = io_req->io_req_flags;
fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
}
static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
struct fcoe_fcp_rsp_payload *fcp_rsp,
u8 num_rq, unsigned char *rq_data)
{
struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
u8 rsp_flags = fcp_rsp->fcp_flags.flags;
u32 rq_buff_len = 0;
int fcp_sns_len = 0;
int fcp_rsp_len = 0;
io_req->fcp_status = FC_GOOD;
io_req->fcp_resid = 0;
if (rsp_flags & (FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER |
FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER))
io_req->fcp_resid = fcp_rsp->fcp_resid;
io_req->scsi_comp_flags = rsp_flags;
io_req->cdb_status = fcp_rsp->scsi_status_code;
/* Fetch fcp_rsp_info and fcp_sns_info if available */
if (num_rq) {
/*
* We do not anticipate num_rq >1, as the linux defined
* SCSI_SENSE_BUFFERSIZE is 96 bytes + 8 bytes of FCP_RSP_INFO
* 256 bytes of single rq buffer is good enough to hold this.
*/
if (rsp_flags &
FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID) {
fcp_rsp_len = rq_buff_len
= fcp_rsp->fcp_rsp_len;
}
if (rsp_flags &
FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID) {
fcp_sns_len = fcp_rsp->fcp_sns_len;
rq_buff_len += fcp_rsp->fcp_sns_len;
}
io_req->fcp_rsp_len = fcp_rsp_len;
io_req->fcp_sns_len = fcp_sns_len;
if (rq_buff_len > num_rq * BNX2FC_RQ_BUF_SZ) {
/* Invalid sense sense length. */
printk(KERN_ERR PFX "invalid sns length %d\n",
rq_buff_len);
/* reset rq_buff_len */
rq_buff_len = num_rq * BNX2FC_RQ_BUF_SZ;
}
/* fetch fcp_rsp_code */
if ((fcp_rsp_len == 4) || (fcp_rsp_len == 8)) {
/* Only for task management function */
io_req->fcp_rsp_code = rq_data[3];
BNX2FC_IO_DBG(io_req, "fcp_rsp_code = %d\n",
io_req->fcp_rsp_code);
}
/* fetch sense data */
rq_data += fcp_rsp_len;
if (fcp_sns_len > SCSI_SENSE_BUFFERSIZE) {
printk(KERN_ERR PFX "Truncating sense buffer\n");
fcp_sns_len = SCSI_SENSE_BUFFERSIZE;
}
memset(sc_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
if (fcp_sns_len)
memcpy(sc_cmd->sense_buffer, rq_data, fcp_sns_len);
}
}
/**
* bnx2fc_queuecommand - Queuecommand function of the scsi template
*
* @host: The Scsi_Host the command was issued to
* @sc_cmd: struct scsi_cmnd to be executed
*
* This is the IO strategy routine, called by SCSI-ML
**/
int bnx2fc_queuecommand(struct Scsi_Host *host,
struct scsi_cmnd *sc_cmd)
{
struct fc_lport *lport = shost_priv(host);
struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
struct fc_rport_libfc_priv *rp = rport->dd_data;
struct bnx2fc_rport *tgt;
struct bnx2fc_cmd *io_req;
int rc = 0;
int rval;
rval = fc_remote_port_chkready(rport);
if (rval) {
sc_cmd->result = rval;
scsi_done(sc_cmd);
return 0;
}
if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
rc = SCSI_MLQUEUE_HOST_BUSY;
goto exit_qcmd;
}
/* rport and tgt are allocated together, so tgt should be non-NULL */
tgt = (struct bnx2fc_rport *)&rp[1];
if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
/*
* Session is not offloaded yet. Let SCSI-ml retry
* the command.
*/
rc = SCSI_MLQUEUE_TARGET_BUSY;
goto exit_qcmd;
}
if (tgt->retry_delay_timestamp) {
if (time_after(jiffies, tgt->retry_delay_timestamp)) {
tgt->retry_delay_timestamp = 0;
} else {
/* If retry_delay timer is active, flow off the ML */
rc = SCSI_MLQUEUE_TARGET_BUSY;
goto exit_qcmd;
}
}
spin_lock_bh(&tgt->tgt_lock);
io_req = bnx2fc_cmd_alloc(tgt);
if (!io_req) {
rc = SCSI_MLQUEUE_HOST_BUSY;
goto exit_qcmd_tgtlock;
}
io_req->sc_cmd = sc_cmd;
if (bnx2fc_post_io_req(tgt, io_req)) {
printk(KERN_ERR PFX "Unable to post io_req\n");
rc = SCSI_MLQUEUE_HOST_BUSY;
goto exit_qcmd_tgtlock;
}
exit_qcmd_tgtlock:
spin_unlock_bh(&tgt->tgt_lock);
exit_qcmd:
return rc;
}
void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
struct fcoe_task_ctx_entry *task,
u8 num_rq, unsigned char *rq_data)
{
struct fcoe_fcp_rsp_payload *fcp_rsp;
struct bnx2fc_rport *tgt = io_req->tgt;
struct scsi_cmnd *sc_cmd;
u16 scope = 0, qualifier = 0;
/* scsi_cmd_cmpl is called with tgt lock held */
if (test_and_set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags)) {
/* we will not receive ABTS response for this IO */
BNX2FC_IO_DBG(io_req, "Timer context finished processing "
"this scsi cmd\n");
if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP,
&io_req->req_flags)) {
BNX2FC_IO_DBG(io_req,
"Actual completion after cleanup request cleaning up\n");
bnx2fc_process_cleanup_compl(io_req, task, num_rq);
}
return;
}
/* Cancel the timeout_work, as we received IO completion */
if (cancel_delayed_work(&io_req->timeout_work))
kref_put(&io_req->refcount,
bnx2fc_cmd_release); /* drop timer hold */
sc_cmd = io_req->sc_cmd;
if (sc_cmd == NULL) {
printk(KERN_ERR PFX "scsi_cmd_compl - sc_cmd is NULL\n");
return;
}
/* Fetch fcp_rsp from task context and perform cmd completion */
fcp_rsp = (struct fcoe_fcp_rsp_payload *)
&(task->rxwr_only.union_ctx.comp_info.fcp_rsp.payload);
/* parse fcp_rsp and obtain sense data from RQ if available */
bnx2fc_parse_fcp_rsp(io_req, fcp_rsp, num_rq, rq_data);
if (!bnx2fc_priv(sc_cmd)->io_req) {
printk(KERN_ERR PFX "io_req is NULL\n");
return;
}
if (io_req->on_active_queue) {
list_del_init(&io_req->link);
io_req->on_active_queue = 0;
/* Move IO req to retire queue */
list_add_tail(&io_req->link, &tgt->io_retire_queue);
} else {
/* This should not happen, but could have been pulled
* by bnx2fc_flush_active_ios(), or during a race
* between command abort and (late) completion.
*/
BNX2FC_IO_DBG(io_req, "xid not on active_cmd_queue\n");
if (io_req->wait_for_abts_comp)
if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
&io_req->req_flags))
complete(&io_req->abts_done);
}
bnx2fc_unmap_sg_list(io_req);
io_req->sc_cmd = NULL;
switch (io_req->fcp_status) {
case FC_GOOD:
if (io_req->cdb_status == 0) {
/* Good IO completion */
sc_cmd->result = DID_OK << 16;
} else {
/* Transport status is good, SCSI status not good */
BNX2FC_IO_DBG(io_req, "scsi_cmpl: cdb_status = %d"
" fcp_resid = 0x%x\n",
io_req->cdb_status, io_req->fcp_resid);
sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
if (io_req->cdb_status == SAM_STAT_TASK_SET_FULL ||
io_req->cdb_status == SAM_STAT_BUSY) {
/* Newer array firmware with BUSY or
* TASK_SET_FULL may return a status that needs
* the scope bits masked.
* Or a huge delay timestamp up to 27 minutes
* can result.
*/
if (fcp_rsp->retry_delay_timer) {
/* Upper 2 bits */
scope = fcp_rsp->retry_delay_timer
& 0xC000;
/* Lower 14 bits */
qualifier = fcp_rsp->retry_delay_timer
& 0x3FFF;
}
if (scope > 0 && qualifier > 0 &&
qualifier <= 0x3FEF) {
/* Set the jiffies +
* retry_delay_timer * 100ms
* for the rport/tgt
*/
tgt->retry_delay_timestamp = jiffies +
(qualifier * HZ / 10);
}
}
}
if (io_req->fcp_resid)
scsi_set_resid(sc_cmd, io_req->fcp_resid);
break;
default:
printk(KERN_ERR PFX "scsi_cmd_compl: fcp_status = %d\n",
io_req->fcp_status);
break;
}
bnx2fc_priv(sc_cmd)->io_req = NULL;
scsi_done(sc_cmd);
kref_put(&io_req->refcount, bnx2fc_cmd_release);
}
int bnx2fc_post_io_req(struct bnx2fc_rport *tgt,
struct bnx2fc_cmd *io_req)
{
struct fcoe_task_ctx_entry *task;
struct fcoe_task_ctx_entry *task_page;
struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
struct fcoe_port *port = tgt->port;
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct fc_lport *lport = port->lport;
int task_idx, index;
u16 xid;
/* bnx2fc_post_io_req() is called with the tgt_lock held */
/* Initialize rest of io_req fields */
io_req->cmd_type = BNX2FC_SCSI_CMD;
io_req->port = port;
io_req->tgt = tgt;
io_req->data_xfer_len = scsi_bufflen(sc_cmd);
bnx2fc_priv(sc_cmd)->io_req = io_req;
if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE) {
io_req->io_req_flags = BNX2FC_READ;
this_cpu_inc(lport->stats->InputRequests);
this_cpu_add(lport->stats->InputBytes, io_req->data_xfer_len);
} else if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
io_req->io_req_flags = BNX2FC_WRITE;
this_cpu_inc(lport->stats->OutputRequests);
this_cpu_add(lport->stats->OutputBytes, io_req->data_xfer_len);
} else {
io_req->io_req_flags = 0;
this_cpu_inc(lport->stats->ControlRequests);
}
xid = io_req->xid;
/* Build buffer descriptor list for firmware from sg list */
if (bnx2fc_build_bd_list_from_sg(io_req)) {
printk(KERN_ERR PFX "BD list creation failed\n");
kref_put(&io_req->refcount, bnx2fc_cmd_release);
return -EAGAIN;
}
task_idx = xid / BNX2FC_TASKS_PER_PAGE;
index = xid % BNX2FC_TASKS_PER_PAGE;
/* Initialize task context for this IO request */
task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
task = &(task_page[index]);
bnx2fc_init_task(io_req, task);
if (tgt->flush_in_prog) {
printk(KERN_ERR PFX "Flush in progress..Host Busy\n");
kref_put(&io_req->refcount, bnx2fc_cmd_release);
return -EAGAIN;
}
if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
printk(KERN_ERR PFX "Session not ready...post_io\n");
kref_put(&io_req->refcount, bnx2fc_cmd_release);
return -EAGAIN;
}
/* Time IO req */
if (tgt->io_timeout)
bnx2fc_cmd_timer_set(io_req, BNX2FC_IO_TIMEOUT);
/* Obtain free SQ entry */
bnx2fc_add_2_sq(tgt, xid);
/* Enqueue the io_req to active_cmd_queue */
io_req->on_active_queue = 1;
/* move io_req from pending_queue to active_queue */
list_add_tail(&io_req->link, &tgt->active_cmd_queue);
/* Ring doorbell */
bnx2fc_ring_doorbell(tgt);
return 0;
}
|
linux-master
|
drivers/scsi/bnx2fc/bnx2fc_io.c
|
/* bnx2fc_fcoe.c: QLogic Linux FCoE offload driver.
* This file contains the code that interacts with libfc, libfcoe,
* cnic modules to create FCoE instances, send/receive non-offloaded
* FIP/FCoE packets, listen to link events etc.
*
* Copyright (c) 2008-2013 Broadcom Corporation
* Copyright (c) 2014-2016 QLogic Corporation
* Copyright (c) 2016-2017 Cavium Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Bhanu Prakash Gollapudi ([email protected])
*/
#include "bnx2fc.h"
#include <linux/ethtool.h>
static struct list_head adapter_list;
static struct list_head if_list;
static u32 adapter_count;
static DEFINE_MUTEX(bnx2fc_dev_lock);
DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
#define DRV_MODULE_NAME "bnx2fc"
#define DRV_MODULE_VERSION BNX2FC_VERSION
#define DRV_MODULE_RELDATE "October 15, 2015"
static char version[] =
"QLogic FCoE Driver " DRV_MODULE_NAME \
" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Bhanu Prakash Gollapudi <[email protected]>");
MODULE_DESCRIPTION("QLogic FCoE Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
#define BNX2FC_MAX_QUEUE_DEPTH 256
#define BNX2FC_MIN_QUEUE_DEPTH 32
#define FCOE_WORD_TO_BYTE 4
static struct scsi_transport_template *bnx2fc_transport_template;
static struct scsi_transport_template *bnx2fc_vport_xport_template;
struct workqueue_struct *bnx2fc_wq;
/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
* Here the io threads are per cpu but the l2 thread is just one
*/
struct fcoe_percpu_s bnx2fc_global;
static DEFINE_SPINLOCK(bnx2fc_global_lock);
static struct cnic_ulp_ops bnx2fc_cnic_cb;
static struct libfc_function_template bnx2fc_libfc_fcn_templ;
static struct scsi_host_template bnx2fc_shost_template;
static struct fc_function_template bnx2fc_transport_function;
static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ;
static struct fc_function_template bnx2fc_vport_xport_function;
static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode);
static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
static int bnx2fc_destroy(struct net_device *net_device);
static int bnx2fc_enable(struct net_device *netdev);
static int bnx2fc_disable(struct net_device *netdev);
/* fcoe_syfs control interface handlers */
static int bnx2fc_ctlr_alloc(struct net_device *netdev);
static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev);
static void bnx2fc_recv_frame(struct sk_buff *skb);
static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
static int bnx2fc_lport_config(struct fc_lport *lport);
static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba);
static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
struct device *parent, int npiv);
static void bnx2fc_port_destroy(struct fcoe_port *port);
static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
*phys_dev);
static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
static void bnx2fc_port_shutdown(struct fc_lport *lport);
static void bnx2fc_stop(struct bnx2fc_interface *interface);
static int __init bnx2fc_mod_init(void);
static void __exit bnx2fc_mod_exit(void);
unsigned int bnx2fc_debug_level;
module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(debug_logging,
"Option to enable extended logging,\n"
"\t\tDefault is 0 - no logging.\n"
"\t\t0x01 - SCSI cmd error, cleanup.\n"
"\t\t0x02 - Session setup, cleanup, etc.\n"
"\t\t0x04 - lport events, link, mtu, etc.\n"
"\t\t0x08 - ELS logs.\n"
"\t\t0x10 - fcoe L2 fame related logs.\n"
"\t\t0xff - LOG all messages.");
static uint bnx2fc_devloss_tmo;
module_param_named(devloss_tmo, bnx2fc_devloss_tmo, uint, S_IRUGO);
MODULE_PARM_DESC(devloss_tmo, " Change devloss_tmo for the remote ports "
"attached via bnx2fc.");
static uint bnx2fc_max_luns = BNX2FC_MAX_LUN;
module_param_named(max_luns, bnx2fc_max_luns, uint, S_IRUGO);
MODULE_PARM_DESC(max_luns, " Change the default max_lun per SCSI host. Default "
"0xffff.");
static uint bnx2fc_queue_depth;
module_param_named(queue_depth, bnx2fc_queue_depth, uint, S_IRUGO);
MODULE_PARM_DESC(queue_depth, " Change the default queue depth of SCSI devices "
"attached via bnx2fc.");
static uint bnx2fc_log_fka;
module_param_named(log_fka, bnx2fc_log_fka, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(log_fka, " Print message to kernel log when fcoe is "
"initiating a FIP keep alive when debug logging is enabled.");
static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
{
return ((struct bnx2fc_interface *)
((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
}
static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
{
struct fcoe_ctlr_device *ctlr_dev =
fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr);
fcf_dev->vlan_id = fcoe->vlan_id;
}
static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
{
struct fcoe_percpu_s *bg;
struct fcoe_rcv_info *fr;
struct sk_buff_head *list;
struct sk_buff *skb, *next;
bg = &bnx2fc_global;
spin_lock_bh(&bg->fcoe_rx_list.lock);
list = &bg->fcoe_rx_list;
skb_queue_walk_safe(list, skb, next) {
fr = fcoe_dev_from_skb(skb);
if (fr->fr_dev == lp) {
__skb_unlink(skb, list);
kfree_skb(skb);
}
}
spin_unlock_bh(&bg->fcoe_rx_list.lock);
}
int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
{
int rc;
spin_lock(&bnx2fc_global_lock);
rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
spin_unlock(&bnx2fc_global_lock);
return rc;
}
static void bnx2fc_abort_io(struct fc_lport *lport)
{
/*
* This function is no-op for bnx2fc, but we do
* not want to leave it as NULL either, as libfc
* can call the default function which is
* fc_fcp_abort_io.
*/
}
static void bnx2fc_cleanup(struct fc_lport *lport)
{
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct bnx2fc_rport *tgt;
int i;
BNX2FC_MISC_DBG("Entered %s\n", __func__);
mutex_lock(&hba->hba_mutex);
spin_lock_bh(&hba->hba_lock);
for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
tgt = hba->tgt_ofld_list[i];
if (tgt) {
/* Cleanup IOs belonging to requested vport */
if (tgt->port == port) {
spin_unlock_bh(&hba->hba_lock);
BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
bnx2fc_flush_active_ios(tgt);
spin_lock_bh(&hba->hba_lock);
}
}
}
spin_unlock_bh(&hba->hba_lock);
mutex_unlock(&hba->hba_mutex);
}
static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
struct fc_frame *fp)
{
struct fc_rport_priv *rdata = tgt->rdata;
struct fc_frame_header *fh;
int rc = 0;
fh = fc_frame_header_get(fp);
BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
"r_ctl = 0x%x\n", rdata->ids.port_id,
ntohs(fh->fh_ox_id), fh->fh_r_ctl);
if ((fh->fh_type == FC_TYPE_ELS) &&
(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
switch (fc_frame_payload_op(fp)) {
case ELS_ADISC:
rc = bnx2fc_send_adisc(tgt, fp);
break;
case ELS_LOGO:
rc = bnx2fc_send_logo(tgt, fp);
break;
case ELS_RLS:
rc = bnx2fc_send_rls(tgt, fp);
break;
default:
break;
}
} else if ((fh->fh_type == FC_TYPE_BLS) &&
(fh->fh_r_ctl == FC_RCTL_BA_ABTS))
BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
else {
BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
"rctl 0x%x thru non-offload path\n",
fh->fh_type, fh->fh_r_ctl);
return -ENODEV;
}
if (rc)
return -ENOMEM;
else
return 0;
}
/**
* bnx2fc_xmit - bnx2fc's FCoE frame transmit function
*
* @lport: the associated local port
* @fp: the fc_frame to be transmitted
*/
static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
{
struct ethhdr *eh;
struct fcoe_crc_eof *cp;
struct sk_buff *skb;
struct fc_frame_header *fh;
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
struct bnx2fc_hba *hba;
struct fcoe_port *port;
struct fcoe_hdr *hp;
struct bnx2fc_rport *tgt;
u8 sof, eof;
u32 crc;
unsigned int hlen, tlen, elen;
int wlen, rc = 0;
port = (struct fcoe_port *)lport_priv(lport);
interface = port->priv;
ctlr = bnx2fc_to_ctlr(interface);
hba = interface->hba;
fh = fc_frame_header_get(fp);
skb = fp_skb(fp);
if (!lport->link_up) {
BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
kfree_skb(skb);
return 0;
}
if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
if (!ctlr->sel_fcf) {
BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
kfree_skb(skb);
return -EINVAL;
}
if (fcoe_ctlr_els_send(ctlr, lport, skb))
return 0;
}
sof = fr_sof(fp);
eof = fr_eof(fp);
/*
* Snoop the frame header to check if the frame is for
* an offloaded session
*/
/*
* tgt_ofld_list access is synchronized using
* both hba mutex and hba lock. Atleast hba mutex or
* hba lock needs to be held for read access.
*/
spin_lock_bh(&hba->hba_lock);
tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
/* This frame is for offloaded session */
BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
"port_id = 0x%x\n", ntoh24(fh->fh_d_id));
spin_unlock_bh(&hba->hba_lock);
rc = bnx2fc_xmit_l2_frame(tgt, fp);
if (rc != -ENODEV) {
kfree_skb(skb);
return rc;
}
} else {
spin_unlock_bh(&hba->hba_lock);
}
elen = sizeof(struct ethhdr);
hlen = sizeof(struct fcoe_hdr);
tlen = sizeof(struct fcoe_crc_eof);
wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
skb->ip_summed = CHECKSUM_NONE;
crc = fcoe_fc_crc(fp);
/* copy port crc and eof to the skb buff */
if (skb_is_nonlinear(skb)) {
skb_frag_t *frag;
if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
kfree_skb(skb);
return -ENOMEM;
}
frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
cp = kmap_atomic(skb_frag_page(frag)) + skb_frag_off(frag);
} else {
cp = skb_put(skb, tlen);
}
memset(cp, 0, sizeof(*cp));
cp->fcoe_eof = eof;
cp->fcoe_crc32 = cpu_to_le32(~crc);
if (skb_is_nonlinear(skb)) {
kunmap_atomic(cp);
cp = NULL;
}
/* adjust skb network/transport offsets to match mac/fcoe/port */
skb_push(skb, elen + hlen);
skb_reset_mac_header(skb);
skb_reset_network_header(skb);
skb->mac_len = elen;
skb->protocol = htons(ETH_P_FCOE);
skb->dev = interface->netdev;
/* fill up mac and fcoe headers */
eh = eth_hdr(skb);
eh->h_proto = htons(ETH_P_FCOE);
if (ctlr->map_dest)
fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
else
/* insert GW address */
memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);
if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
else
memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
hp = (struct fcoe_hdr *)(eh + 1);
memset(hp, 0, sizeof(*hp));
if (FC_FCOE_VER)
FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
hp->fcoe_sof = sof;
/* fcoe lso, mss is in max_payload which is non-zero for FCP data */
if (lport->seq_offload && fr_max_payload(fp)) {
skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
skb_shinfo(skb)->gso_size = fr_max_payload(fp);
} else {
skb_shinfo(skb)->gso_type = 0;
skb_shinfo(skb)->gso_size = 0;
}
/*update tx stats */
this_cpu_inc(lport->stats->TxFrames);
this_cpu_add(lport->stats->TxWords, wlen);
/* send down to lld */
fr_dev(fp) = lport;
if (port->fcoe_pending_queue.qlen)
fcoe_check_wait_queue(lport, skb);
else if (fcoe_start_io(skb))
fcoe_check_wait_queue(lport, skb);
return 0;
}
/**
* bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
*
* @skb: the receive socket buffer
* @dev: associated net device
* @ptype: context
* @olddev: last device
*
* This function receives the packet and builds FC frame and passes it up
*/
static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype, struct net_device *olddev)
{
struct fc_lport *lport;
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
struct fcoe_rcv_info *fr;
struct fcoe_percpu_s *bg;
struct sk_buff *tmp_skb;
interface = container_of(ptype, struct bnx2fc_interface,
fcoe_packet_type);
ctlr = bnx2fc_to_ctlr(interface);
lport = ctlr->lp;
if (unlikely(lport == NULL)) {
printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
goto err;
}
tmp_skb = skb_share_check(skb, GFP_ATOMIC);
if (!tmp_skb)
goto err;
skb = tmp_skb;
if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
goto err;
}
/*
* Check for minimum frame length, and make sure required FCoE
* and FC headers are pulled into the linear data area.
*/
if (unlikely((skb->len < FCOE_MIN_FRAME) ||
!pskb_may_pull(skb, FCOE_HEADER_LEN)))
goto err;
skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
fr = fcoe_dev_from_skb(skb);
fr->fr_dev = lport;
bg = &bnx2fc_global;
spin_lock(&bg->fcoe_rx_list.lock);
__skb_queue_tail(&bg->fcoe_rx_list, skb);
if (bg->fcoe_rx_list.qlen == 1)
wake_up_process(bg->kthread);
spin_unlock(&bg->fcoe_rx_list.lock);
return 0;
err:
kfree_skb(skb);
return -1;
}
static int bnx2fc_l2_rcv_thread(void *arg)
{
struct fcoe_percpu_s *bg = arg;
struct sk_buff *skb;
set_user_nice(current, MIN_NICE);
set_current_state(TASK_INTERRUPTIBLE);
while (!kthread_should_stop()) {
schedule();
spin_lock_bh(&bg->fcoe_rx_list.lock);
while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
spin_unlock_bh(&bg->fcoe_rx_list.lock);
bnx2fc_recv_frame(skb);
spin_lock_bh(&bg->fcoe_rx_list.lock);
}
__set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_bh(&bg->fcoe_rx_list.lock);
}
__set_current_state(TASK_RUNNING);
return 0;
}
static void bnx2fc_recv_frame(struct sk_buff *skb)
{
u64 crc_err;
u32 fr_len, fr_crc;
struct fc_lport *lport;
struct fcoe_rcv_info *fr;
struct fc_frame_header *fh;
struct fcoe_crc_eof crc_eof;
struct fc_frame *fp;
struct fc_lport *vn_port;
struct fcoe_port *port, *phys_port;
u8 *mac = NULL;
u8 *dest_mac = NULL;
struct fcoe_hdr *hp;
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
fr = fcoe_dev_from_skb(skb);
lport = fr->fr_dev;
if (unlikely(lport == NULL)) {
printk(KERN_ERR PFX "Invalid lport struct\n");
kfree_skb(skb);
return;
}
if (skb_is_nonlinear(skb))
skb_linearize(skb);
mac = eth_hdr(skb)->h_source;
dest_mac = eth_hdr(skb)->h_dest;
/* Pull the header */
hp = (struct fcoe_hdr *) skb_network_header(skb);
fh = (struct fc_frame_header *) skb_transport_header(skb);
skb_pull(skb, sizeof(struct fcoe_hdr));
fr_len = skb->len - sizeof(struct fcoe_crc_eof);
this_cpu_inc(lport->stats->RxFrames);
this_cpu_add(lport->stats->RxWords, fr_len / FCOE_WORD_TO_BYTE);
fp = (struct fc_frame *)skb;
fc_frame_init(fp);
fr_dev(fp) = lport;
fr_sof(fp) = hp->fcoe_sof;
if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
kfree_skb(skb);
return;
}
fr_eof(fp) = crc_eof.fcoe_eof;
fr_crc(fp) = crc_eof.fcoe_crc32;
if (pskb_trim(skb, fr_len)) {
kfree_skb(skb);
return;
}
phys_port = lport_priv(lport);
interface = phys_port->priv;
ctlr = bnx2fc_to_ctlr(interface);
fh = fc_frame_header_get(fp);
if (ntoh24(&dest_mac[3]) != ntoh24(fh->fh_d_id)) {
BNX2FC_HBA_DBG(lport, "FC frame d_id mismatch with MAC %pM.\n",
dest_mac);
kfree_skb(skb);
return;
}
vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
if (vn_port) {
port = lport_priv(vn_port);
if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
kfree_skb(skb);
return;
}
}
if (ctlr->state) {
if (!ether_addr_equal(mac, ctlr->dest_addr)) {
BNX2FC_HBA_DBG(lport, "Wrong source address: mac:%pM dest_addr:%pM.\n",
mac, ctlr->dest_addr);
kfree_skb(skb);
return;
}
}
if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
fh->fh_type == FC_TYPE_FCP) {
/* Drop FCP data. We dont this in L2 path */
kfree_skb(skb);
return;
}
if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
fh->fh_type == FC_TYPE_ELS) {
switch (fc_frame_payload_op(fp)) {
case ELS_LOGO:
if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
/* drop non-FIP LOGO */
kfree_skb(skb);
return;
}
break;
}
}
if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
/* Drop incoming ABTS */
kfree_skb(skb);
return;
}
/*
* If the destination ID from the frame header does not match what we
* have on record for lport and the search for a NPIV port came up
* empty then this is not addressed to our port so simply drop it.
*/
if (lport->port_id != ntoh24(fh->fh_d_id) && !vn_port) {
BNX2FC_HBA_DBG(lport, "Dropping frame due to destination mismatch: lport->port_id=%x fh->d_id=%x.\n",
lport->port_id, ntoh24(fh->fh_d_id));
kfree_skb(skb);
return;
}
fr_crc = le32_to_cpu(fr_crc(fp));
if (unlikely(fr_crc != ~crc32(~0, skb->data, fr_len))) {
crc_err = this_cpu_inc_return(lport->stats->InvalidCRCCount);
if (crc_err < 5)
printk(KERN_WARNING PFX "dropping frame with "
"CRC error\n");
kfree_skb(skb);
return;
}
fc_exch_recv(lport, fp);
}
/**
* bnx2fc_percpu_io_thread - thread per cpu for ios
*
* @arg: ptr to bnx2fc_percpu_info structure
*/
static int bnx2fc_percpu_io_thread(void *arg)
{
struct bnx2fc_percpu_s *p = arg;
struct bnx2fc_work *work, *tmp;
LIST_HEAD(work_list);
set_user_nice(current, MIN_NICE);
set_current_state(TASK_INTERRUPTIBLE);
while (!kthread_should_stop()) {
schedule();
spin_lock_bh(&p->fp_work_lock);
while (!list_empty(&p->work_list)) {
list_splice_init(&p->work_list, &work_list);
spin_unlock_bh(&p->fp_work_lock);
list_for_each_entry_safe(work, tmp, &work_list, list) {
list_del_init(&work->list);
bnx2fc_process_cq_compl(work->tgt, work->wqe,
work->rq_data,
work->num_rq,
work->task);
kfree(work);
}
spin_lock_bh(&p->fp_work_lock);
}
__set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_bh(&p->fp_work_lock);
}
__set_current_state(TASK_RUNNING);
return 0;
}
static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
{
struct fc_host_statistics *bnx2fc_stats;
struct fc_lport *lport = shost_priv(shost);
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct fcoe_statistics_params *fw_stats;
int rc = 0;
fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
if (!fw_stats)
return NULL;
mutex_lock(&hba->hba_stats_mutex);
bnx2fc_stats = fc_get_host_stats(shost);
init_completion(&hba->stat_req_done);
if (bnx2fc_send_stat_req(hba))
goto unlock_stats_mutex;
rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
if (!rc) {
BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
goto unlock_stats_mutex;
}
BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt);
bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt;
BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt);
bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt;
BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt);
bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4);
BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt);
bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt;
BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt);
bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4);
bnx2fc_stats->dumped_frames = 0;
bnx2fc_stats->lip_count = 0;
bnx2fc_stats->nos_count = 0;
bnx2fc_stats->loss_of_sync_count = 0;
bnx2fc_stats->loss_of_signal_count = 0;
bnx2fc_stats->prim_seq_protocol_err_count = 0;
memcpy(&hba->prev_stats, hba->stats_buffer,
sizeof(struct fcoe_statistics_params));
unlock_stats_mutex:
mutex_unlock(&hba->hba_stats_mutex);
return bnx2fc_stats;
}
static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
{
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct Scsi_Host *shost = lport->host;
int rc = 0;
shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
shost->max_lun = bnx2fc_max_luns;
shost->max_id = BNX2FC_MAX_FCP_TGT;
shost->max_channel = 0;
if (lport->vport)
shost->transportt = bnx2fc_vport_xport_template;
else
shost->transportt = bnx2fc_transport_template;
/* Add the new host to SCSI-ml */
rc = scsi_add_host(lport->host, dev);
if (rc) {
printk(KERN_ERR PFX "Error on scsi_add_host\n");
return rc;
}
if (!lport->vport)
fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
snprintf(fc_host_symbolic_name(lport->host), 256,
"%s (QLogic %s) v%s over %s",
BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
interface->netdev->name);
return 0;
}
static int bnx2fc_link_ok(struct fc_lport *lport)
{
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
struct bnx2fc_hba *hba = interface->hba;
struct net_device *dev = hba->phys_dev;
int rc = 0;
if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
else {
set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
rc = -1;
}
return rc;
}
/**
* bnx2fc_get_link_state - get network link state
*
* @hba: adapter instance pointer
*
* updates adapter structure flag based on netdev state
*/
void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
{
if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
else
clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
}
static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
{
struct bnx2fc_hba *hba;
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
struct fcoe_port *port;
u64 wwnn, wwpn;
port = lport_priv(lport);
interface = port->priv;
ctlr = bnx2fc_to_ctlr(interface);
hba = interface->hba;
/* require support for get_pauseparam ethtool op. */
if (!hba->phys_dev->ethtool_ops ||
!hba->phys_dev->ethtool_ops->get_pauseparam)
return -EOPNOTSUPP;
if (fc_set_mfs(lport, BNX2FC_MFS))
return -EINVAL;
skb_queue_head_init(&port->fcoe_pending_queue);
port->fcoe_pending_queue_active = 0;
timer_setup(&port->timer, fcoe_queue_timer, 0);
fcoe_link_speed_update(lport);
if (!lport->vport) {
if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
1, 0);
BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
fc_set_wwnn(lport, wwnn);
if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
2, 0);
BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
fc_set_wwpn(lport, wwpn);
}
return 0;
}
static void bnx2fc_destroy_timer(struct timer_list *t)
{
struct bnx2fc_hba *hba = from_timer(hba, t, destroy_timer);
printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
"Destroy compl not received!!\n");
set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
wake_up_interruptible(&hba->destroy_wait);
}
/**
* bnx2fc_indicate_netevent - Generic netdev event handler
*
* @context: adapter structure pointer
* @event: event type
* @vlan_id: vlan id - associated vlan id with this event
*
* Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
* NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
*/
static void bnx2fc_indicate_netevent(void *context, unsigned long event,
u16 vlan_id)
{
struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
struct fcoe_ctlr_device *cdev;
struct fc_lport *lport;
struct fc_lport *vport;
struct bnx2fc_interface *interface, *tmp;
struct fcoe_ctlr *ctlr;
int wait_for_upload = 0;
u32 link_possible = 1;
if (vlan_id != 0 && event != NETDEV_UNREGISTER)
return;
switch (event) {
case NETDEV_UP:
if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
printk(KERN_ERR "indicate_netevent: "\
"hba is not UP!!\n");
break;
case NETDEV_DOWN:
clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
link_possible = 0;
break;
case NETDEV_GOING_DOWN:
set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
link_possible = 0;
break;
case NETDEV_CHANGE:
break;
case NETDEV_UNREGISTER:
if (!vlan_id)
return;
mutex_lock(&bnx2fc_dev_lock);
list_for_each_entry_safe(interface, tmp, &if_list, list) {
if (interface->hba == hba &&
interface->vlan_id == (vlan_id & VLAN_VID_MASK))
__bnx2fc_destroy(interface);
}
mutex_unlock(&bnx2fc_dev_lock);
return;
default:
return;
}
mutex_lock(&bnx2fc_dev_lock);
list_for_each_entry(interface, &if_list, list) {
if (interface->hba != hba)
continue;
ctlr = bnx2fc_to_ctlr(interface);
lport = ctlr->lp;
BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
interface->netdev->name, event);
fcoe_link_speed_update(lport);
cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
if (link_possible && !bnx2fc_link_ok(lport)) {
switch (cdev->enabled) {
case FCOE_CTLR_DISABLED:
pr_info("Link up while interface is disabled.\n");
break;
case FCOE_CTLR_ENABLED:
case FCOE_CTLR_UNUSED:
/* Reset max recv frame size to default */
fc_set_mfs(lport, BNX2FC_MFS);
/*
* ctlr link up will only be handled during
* enable to avoid sending discovery
* solicitation on a stale vlan
*/
if (interface->enabled)
fcoe_ctlr_link_up(ctlr);
}
} else if (fcoe_ctlr_link_down(ctlr)) {
switch (cdev->enabled) {
case FCOE_CTLR_DISABLED:
pr_info("Link down while interface is disabled.\n");
break;
case FCOE_CTLR_ENABLED:
case FCOE_CTLR_UNUSED:
mutex_lock(&lport->lp_mutex);
list_for_each_entry(vport, &lport->vports, list)
fc_host_port_type(vport->host) =
FC_PORTTYPE_UNKNOWN;
mutex_unlock(&lport->lp_mutex);
fc_host_port_type(lport->host) =
FC_PORTTYPE_UNKNOWN;
this_cpu_inc(lport->stats->LinkFailureCount);
fcoe_clean_pending_queue(lport);
wait_for_upload = 1;
}
}
}
mutex_unlock(&bnx2fc_dev_lock);
if (wait_for_upload) {
clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
init_waitqueue_head(&hba->shutdown_wait);
BNX2FC_MISC_DBG("indicate_netevent "
"num_ofld_sess = %d\n",
hba->num_ofld_sess);
hba->wait_for_link_down = 1;
wait_event_interruptible(hba->shutdown_wait,
(hba->num_ofld_sess == 0));
BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
hba->num_ofld_sess);
hba->wait_for_link_down = 0;
if (signal_pending(current))
flush_signals(current);
}
}
static int bnx2fc_libfc_config(struct fc_lport *lport)
{
/* Set the function pointers set by bnx2fc driver */
memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
sizeof(struct libfc_function_template));
fc_elsct_init(lport);
fc_exch_init(lport);
fc_disc_init(lport);
fc_disc_config(lport, lport);
return 0;
}
static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba)
{
int fcoe_min_xid, fcoe_max_xid;
fcoe_min_xid = hba->max_xid + 1;
if (nr_cpu_ids <= 2)
fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET;
else
fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET;
if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid,
fcoe_max_xid, NULL)) {
printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
return -ENOMEM;
}
return 0;
}
static int bnx2fc_lport_config(struct fc_lport *lport)
{
lport->link_up = 0;
lport->qfull = 0;
lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
lport->e_d_tov = 2 * 1000;
lport->r_a_tov = 10 * 1000;
lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
lport->does_npiv = 1;
memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
/* alloc stats structure */
if (fc_lport_init_stats(lport))
return -ENOMEM;
/* Finish fc_lport configuration */
fc_lport_config(lport);
return 0;
}
/**
* bnx2fc_fip_recv - handle a received FIP frame.
*
* @skb: the received skb
* @dev: associated &net_device
* @ptype: the &packet_type structure which was used to register this handler.
* @orig_dev: original receive &net_device, in case @ dev is a bond.
*
* Returns: 0 for success
*/
static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype,
struct net_device *orig_dev)
{
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
interface = container_of(ptype, struct bnx2fc_interface,
fip_packet_type);
ctlr = bnx2fc_to_ctlr(interface);
fcoe_ctlr_recv(ctlr, skb);
return 0;
}
/**
* bnx2fc_update_src_mac - Update Ethernet MAC filters.
*
* @lport: The local port
* @addr: Location of data to copy
*
* Remove any previously-set unicast MAC filter.
* Add secondary FCoE MAC address filter for our OUI.
*/
static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
{
struct fcoe_port *port = lport_priv(lport);
memcpy(port->data_src_addr, addr, ETH_ALEN);
}
/**
* bnx2fc_get_src_mac - return the ethernet source address for an lport
*
* @lport: libfc port
*/
static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
{
struct fcoe_port *port;
port = (struct fcoe_port *)lport_priv(lport);
return port->data_src_addr;
}
/**
* bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
*
* @fip: FCoE controller.
* @skb: FIP Packet.
*/
static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
{
struct fip_header *fiph;
struct ethhdr *eth_hdr;
u16 op;
u8 sub;
fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
eth_hdr = (struct ethhdr *)skb_mac_header(skb);
op = ntohs(fiph->fip_op);
sub = fiph->fip_subcode;
if (op == FIP_OP_CTRL && sub == FIP_SC_SOL && bnx2fc_log_fka)
BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
eth_hdr->h_source, eth_hdr->h_dest);
skb->dev = bnx2fc_from_ctlr(fip)->netdev;
dev_queue_xmit(skb);
}
static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
{
struct Scsi_Host *shost = vport_to_shost(vport);
struct fc_lport *n_port = shost_priv(shost);
struct fcoe_port *port = lport_priv(n_port);
struct bnx2fc_interface *interface = port->priv;
struct net_device *netdev = interface->netdev;
struct fc_lport *vn_port;
int rc;
char buf[32];
rc = fcoe_validate_vport_create(vport);
if (rc) {
fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
printk(KERN_ERR PFX "Failed to create vport, "
"WWPN (0x%s) already exists\n",
buf);
return rc;
}
if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
printk(KERN_ERR PFX "vn ports cannot be created on"
"this interface\n");
return -EIO;
}
rtnl_lock();
mutex_lock(&bnx2fc_dev_lock);
vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
mutex_unlock(&bnx2fc_dev_lock);
rtnl_unlock();
if (!vn_port) {
printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
netdev->name);
return -EIO;
}
if (bnx2fc_devloss_tmo)
fc_host_dev_loss_tmo(vn_port->host) = bnx2fc_devloss_tmo;
if (disabled) {
fc_vport_set_state(vport, FC_VPORT_DISABLED);
} else {
vn_port->boot_time = jiffies;
fc_lport_init(vn_port);
fc_fabric_login(vn_port);
fc_vport_setlink(vn_port);
}
return 0;
}
static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
{
struct bnx2fc_lport *blport, *tmp;
spin_lock_bh(&hba->hba_lock);
list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
if (blport->lport == lport) {
list_del(&blport->list);
kfree(blport);
}
}
spin_unlock_bh(&hba->hba_lock);
}
static int bnx2fc_vport_destroy(struct fc_vport *vport)
{
struct Scsi_Host *shost = vport_to_shost(vport);
struct fc_lport *n_port = shost_priv(shost);
struct fc_lport *vn_port = vport->dd_data;
struct fcoe_port *port = lport_priv(vn_port);
struct bnx2fc_interface *interface = port->priv;
struct fc_lport *v_port;
bool found = false;
mutex_lock(&n_port->lp_mutex);
list_for_each_entry(v_port, &n_port->vports, list)
if (v_port->vport == vport) {
found = true;
break;
}
if (!found) {
mutex_unlock(&n_port->lp_mutex);
return -ENOENT;
}
list_del(&vn_port->list);
mutex_unlock(&n_port->lp_mutex);
bnx2fc_free_vport(interface->hba, port->lport);
bnx2fc_port_shutdown(port->lport);
bnx2fc_port_destroy(port);
bnx2fc_interface_put(interface);
return 0;
}
static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
{
struct fc_lport *lport = vport->dd_data;
if (disable) {
fc_vport_set_state(vport, FC_VPORT_DISABLED);
fc_fabric_logoff(lport);
} else {
lport->boot_time = jiffies;
fc_fabric_login(lport);
fc_vport_setlink(lport);
}
return 0;
}
static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
{
struct net_device *netdev = interface->netdev;
struct net_device *physdev = interface->hba->phys_dev;
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct netdev_hw_addr *ha;
int sel_san_mac = 0;
/* setup Source MAC Address */
rcu_read_lock();
for_each_dev_addr(physdev, ha) {
BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
ha->type);
printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
ha->addr[1], ha->addr[2], ha->addr[3],
ha->addr[4], ha->addr[5]);
if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
(is_valid_ether_addr(ha->addr))) {
memcpy(ctlr->ctl_src_addr, ha->addr,
ETH_ALEN);
sel_san_mac = 1;
BNX2FC_MISC_DBG("Found SAN MAC\n");
}
}
rcu_read_unlock();
if (!sel_san_mac)
return -ENODEV;
interface->fip_packet_type.func = bnx2fc_fip_recv;
interface->fip_packet_type.type = htons(ETH_P_FIP);
interface->fip_packet_type.dev = netdev;
dev_add_pack(&interface->fip_packet_type);
interface->fcoe_packet_type.func = bnx2fc_rcv;
interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
interface->fcoe_packet_type.dev = netdev;
dev_add_pack(&interface->fcoe_packet_type);
return 0;
}
static int bnx2fc_attach_transport(void)
{
bnx2fc_transport_template =
fc_attach_transport(&bnx2fc_transport_function);
if (bnx2fc_transport_template == NULL) {
printk(KERN_ERR PFX "Failed to attach FC transport\n");
return -ENODEV;
}
bnx2fc_vport_xport_template =
fc_attach_transport(&bnx2fc_vport_xport_function);
if (bnx2fc_vport_xport_template == NULL) {
printk(KERN_ERR PFX
"Failed to attach FC transport for vport\n");
fc_release_transport(bnx2fc_transport_template);
bnx2fc_transport_template = NULL;
return -ENODEV;
}
return 0;
}
static void bnx2fc_release_transport(void)
{
fc_release_transport(bnx2fc_transport_template);
fc_release_transport(bnx2fc_vport_xport_template);
bnx2fc_transport_template = NULL;
bnx2fc_vport_xport_template = NULL;
}
static void bnx2fc_interface_release(struct kref *kref)
{
struct fcoe_ctlr_device *ctlr_dev;
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
struct net_device *netdev;
interface = container_of(kref, struct bnx2fc_interface, kref);
BNX2FC_MISC_DBG("Interface is being released\n");
ctlr = bnx2fc_to_ctlr(interface);
ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
netdev = interface->netdev;
/* tear-down FIP controller */
if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
fcoe_ctlr_destroy(ctlr);
fcoe_ctlr_device_delete(ctlr_dev);
dev_put(netdev);
module_put(THIS_MODULE);
}
static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
{
kref_get(&interface->kref);
}
static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
{
kref_put(&interface->kref, bnx2fc_interface_release);
}
static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
{
/* Free the command manager */
if (hba->cmd_mgr) {
bnx2fc_cmd_mgr_free(hba->cmd_mgr);
hba->cmd_mgr = NULL;
}
kfree(hba->tgt_ofld_list);
bnx2fc_unbind_pcidev(hba);
kfree(hba);
}
/**
* bnx2fc_hba_create - create a new bnx2fc hba
*
* @cnic: pointer to cnic device
*
* Creates a new FCoE hba on the given device.
*
*/
static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
{
struct bnx2fc_hba *hba;
struct fcoe_capabilities *fcoe_cap;
int rc;
hba = kzalloc(sizeof(*hba), GFP_KERNEL);
if (!hba) {
printk(KERN_ERR PFX "Unable to allocate hba structure\n");
return NULL;
}
spin_lock_init(&hba->hba_lock);
mutex_init(&hba->hba_mutex);
mutex_init(&hba->hba_stats_mutex);
hba->cnic = cnic;
hba->max_tasks = cnic->max_fcoe_exchanges;
hba->elstm_xids = (hba->max_tasks / 2);
hba->max_outstanding_cmds = hba->elstm_xids;
hba->max_xid = (hba->max_tasks - 1);
rc = bnx2fc_bind_pcidev(hba);
if (rc) {
printk(KERN_ERR PFX "create_adapter: bind error\n");
goto bind_err;
}
hba->phys_dev = cnic->netdev;
hba->next_conn_id = 0;
hba->tgt_ofld_list =
kcalloc(BNX2FC_NUM_MAX_SESS, sizeof(struct bnx2fc_rport *),
GFP_KERNEL);
if (!hba->tgt_ofld_list) {
printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
goto tgtofld_err;
}
hba->num_ofld_sess = 0;
hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba);
if (!hba->cmd_mgr) {
printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
goto cmgr_err;
}
fcoe_cap = &hba->fcoe_cap;
fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES <<
FCOE_IOS_PER_CONNECTION_SHIFT;
fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS <<
FCOE_LOGINS_PER_PORT_SHIFT;
fcoe_cap->capability2 = hba->max_outstanding_cmds <<
FCOE_NUMBER_OF_EXCHANGES_SHIFT;
fcoe_cap->capability2 |= BNX2FC_MAX_NPIV <<
FCOE_NPIV_WWN_PER_PORT_SHIFT;
fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS <<
FCOE_TARGETS_SUPPORTED_SHIFT;
fcoe_cap->capability3 |= hba->max_outstanding_cmds <<
FCOE_OUTSTANDING_COMMANDS_SHIFT;
fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL;
init_waitqueue_head(&hba->shutdown_wait);
init_waitqueue_head(&hba->destroy_wait);
INIT_LIST_HEAD(&hba->vports);
return hba;
cmgr_err:
kfree(hba->tgt_ofld_list);
tgtofld_err:
bnx2fc_unbind_pcidev(hba);
bind_err:
kfree(hba);
return NULL;
}
static struct bnx2fc_interface *
bnx2fc_interface_create(struct bnx2fc_hba *hba,
struct net_device *netdev,
enum fip_mode fip_mode)
{
struct fcoe_ctlr_device *ctlr_dev;
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
int size;
int rc = 0;
size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
size);
if (!ctlr_dev) {
printk(KERN_ERR PFX "Unable to allocate interface structure\n");
return NULL;
}
ctlr = fcoe_ctlr_device_priv(ctlr_dev);
ctlr->cdev = ctlr_dev;
interface = fcoe_ctlr_priv(ctlr);
dev_hold(netdev);
kref_init(&interface->kref);
interface->hba = hba;
interface->netdev = netdev;
/* Initialize FIP */
fcoe_ctlr_init(ctlr, fip_mode);
ctlr->send = bnx2fc_fip_send;
ctlr->update_mac = bnx2fc_update_src_mac;
ctlr->get_src_addr = bnx2fc_get_src_mac;
set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
rc = bnx2fc_interface_setup(interface);
if (!rc)
return interface;
fcoe_ctlr_destroy(ctlr);
dev_put(netdev);
fcoe_ctlr_device_delete(ctlr_dev);
return NULL;
}
/**
* bnx2fc_if_create - Create FCoE instance on a given interface
*
* @interface: FCoE interface to create a local port on
* @parent: Device pointer to be the parent in sysfs for the SCSI host
* @npiv: Indicates if the port is vport or not
*
* Creates a fc_lport instance and a Scsi_Host instance and configure them.
*
* Returns: Allocated fc_lport or an error pointer
*/
static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
struct device *parent, int npiv)
{
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct fc_lport *lport, *n_port;
struct fcoe_port *port;
struct Scsi_Host *shost;
struct fc_vport *vport = dev_to_vport(parent);
struct bnx2fc_lport *blport;
struct bnx2fc_hba *hba = interface->hba;
int rc = 0;
blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
if (!blport) {
BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
return NULL;
}
/* Allocate Scsi_Host structure */
bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds;
if (!npiv)
lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
else
lport = libfc_vport_create(vport, sizeof(*port));
if (!lport) {
printk(KERN_ERR PFX "could not allocate scsi host structure\n");
goto free_blport;
}
shost = lport->host;
port = lport_priv(lport);
port->lport = lport;
port->priv = interface;
port->get_netdev = bnx2fc_netdev;
/* Configure fcoe_port */
rc = bnx2fc_lport_config(lport);
if (rc)
goto lp_config_err;
if (npiv) {
printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
vport->node_name, vport->port_name);
fc_set_wwnn(lport, vport->node_name);
fc_set_wwpn(lport, vport->port_name);
}
/* Configure netdev and networking properties of the lport */
rc = bnx2fc_net_config(lport, interface->netdev);
if (rc) {
printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
goto lp_config_err;
}
rc = bnx2fc_shost_config(lport, parent);
if (rc) {
printk(KERN_ERR PFX "Couldn't configure shost for %s\n",
interface->netdev->name);
goto lp_config_err;
}
/* Initialize the libfc library */
rc = bnx2fc_libfc_config(lport);
if (rc) {
printk(KERN_ERR PFX "Couldn't configure libfc\n");
goto shost_err;
}
fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
if (bnx2fc_devloss_tmo)
fc_host_dev_loss_tmo(shost) = bnx2fc_devloss_tmo;
/* Allocate exchange manager */
if (!npiv)
rc = bnx2fc_em_config(lport, hba);
else {
shost = vport_to_shost(vport);
n_port = shost_priv(shost);
rc = fc_exch_mgr_list_clone(n_port, lport);
}
if (rc) {
printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
goto shost_err;
}
bnx2fc_interface_get(interface);
spin_lock_bh(&hba->hba_lock);
blport->lport = lport;
list_add_tail(&blport->list, &hba->vports);
spin_unlock_bh(&hba->hba_lock);
return lport;
shost_err:
scsi_remove_host(shost);
lp_config_err:
scsi_host_put(lport->host);
free_blport:
kfree(blport);
return NULL;
}
static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
{
/* Dont listen for Ethernet packets anymore */
__dev_remove_pack(&interface->fcoe_packet_type);
__dev_remove_pack(&interface->fip_packet_type);
synchronize_net();
}
static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
{
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct fc_lport *lport = ctlr->lp;
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_hba *hba = interface->hba;
/* Stop the transmit retry timer */
del_timer_sync(&port->timer);
/* Free existing transmit skbs */
fcoe_clean_pending_queue(lport);
bnx2fc_net_cleanup(interface);
bnx2fc_free_vport(hba, lport);
}
static void bnx2fc_if_destroy(struct fc_lport *lport)
{
/* Free queued packets for the receive thread */
bnx2fc_clean_rx_queue(lport);
/* Detach from scsi-ml */
fc_remove_host(lport->host);
scsi_remove_host(lport->host);
/*
* Note that only the physical lport will have the exchange manager.
* for vports, this function is NOP
*/
fc_exch_mgr_free(lport);
/* Free memory used by statistical counters */
fc_lport_free_stats(lport);
/* Release Scsi_Host */
scsi_host_put(lport->host);
}
static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
{
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct fc_lport *lport = ctlr->lp;
struct fcoe_port *port = lport_priv(lport);
bnx2fc_interface_cleanup(interface);
bnx2fc_stop(interface);
list_del(&interface->list);
bnx2fc_port_destroy(port);
bnx2fc_interface_put(interface);
}
/**
* bnx2fc_destroy - Destroy a bnx2fc FCoE interface
*
* @netdev: The net device that the FCoE interface is on
*
* Called from sysfs.
*
* Returns: 0 for success
*/
static int bnx2fc_destroy(struct net_device *netdev)
{
struct bnx2fc_interface *interface = NULL;
struct workqueue_struct *timer_work_queue;
struct fcoe_ctlr *ctlr;
int rc = 0;
rtnl_lock();
mutex_lock(&bnx2fc_dev_lock);
interface = bnx2fc_interface_lookup(netdev);
ctlr = bnx2fc_to_ctlr(interface);
if (!interface || !ctlr->lp) {
rc = -ENODEV;
printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
goto netdev_err;
}
timer_work_queue = interface->timer_work_queue;
__bnx2fc_destroy(interface);
destroy_workqueue(timer_work_queue);
netdev_err:
mutex_unlock(&bnx2fc_dev_lock);
rtnl_unlock();
return rc;
}
static void bnx2fc_port_destroy(struct fcoe_port *port)
{
struct fc_lport *lport;
lport = port->lport;
BNX2FC_HBA_DBG(lport, "Entered %s, destroying lport %p\n", __func__, lport);
bnx2fc_if_destroy(lport);
}
static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
{
bnx2fc_free_fw_resc(hba);
bnx2fc_free_task_ctx(hba);
}
/**
* bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
* pci structure
*
* @hba: Adapter instance
*/
static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
{
if (bnx2fc_setup_task_ctx(hba))
goto mem_err;
if (bnx2fc_setup_fw_resc(hba))
goto mem_err;
return 0;
mem_err:
bnx2fc_unbind_adapter_devices(hba);
return -ENOMEM;
}
static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
{
struct cnic_dev *cnic;
struct pci_dev *pdev;
if (!hba->cnic) {
printk(KERN_ERR PFX "cnic is NULL\n");
return -ENODEV;
}
cnic = hba->cnic;
pdev = hba->pcidev = cnic->pcidev;
if (!hba->pcidev)
return -ENODEV;
switch (pdev->device) {
case PCI_DEVICE_ID_NX2_57710:
strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN);
break;
case PCI_DEVICE_ID_NX2_57711:
strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN);
break;
case PCI_DEVICE_ID_NX2_57712:
case PCI_DEVICE_ID_NX2_57712_MF:
case PCI_DEVICE_ID_NX2_57712_VF:
strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN);
break;
case PCI_DEVICE_ID_NX2_57800:
case PCI_DEVICE_ID_NX2_57800_MF:
case PCI_DEVICE_ID_NX2_57800_VF:
strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN);
break;
case PCI_DEVICE_ID_NX2_57810:
case PCI_DEVICE_ID_NX2_57810_MF:
case PCI_DEVICE_ID_NX2_57810_VF:
strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN);
break;
case PCI_DEVICE_ID_NX2_57840:
case PCI_DEVICE_ID_NX2_57840_MF:
case PCI_DEVICE_ID_NX2_57840_VF:
case PCI_DEVICE_ID_NX2_57840_2_20:
case PCI_DEVICE_ID_NX2_57840_4_10:
strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN);
break;
default:
pr_err(PFX "Unknown device id 0x%x\n", pdev->device);
break;
}
pci_dev_get(hba->pcidev);
return 0;
}
static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
{
if (hba->pcidev) {
hba->chip_num[0] = '\0';
pci_dev_put(hba->pcidev);
}
hba->pcidev = NULL;
}
/**
* bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
*
* @handle: transport handle pointing to adapter structure
*/
static int bnx2fc_ulp_get_stats(void *handle)
{
struct bnx2fc_hba *hba = handle;
struct cnic_dev *cnic;
struct fcoe_stats_info *stats_addr;
if (!hba)
return -EINVAL;
cnic = hba->cnic;
stats_addr = &cnic->stats_addr->fcoe_stat;
if (!stats_addr)
return -EINVAL;
strncpy(stats_addr->version, BNX2FC_VERSION,
sizeof(stats_addr->version));
stats_addr->txq_size = BNX2FC_SQ_WQES_MAX;
stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX;
return 0;
}
/**
* bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
*
* @handle: transport handle pointing to adapter structure
*
* This function maps adapter structure to pcidev structure and initiates
* firmware handshake to enable/initialize on-chip FCoE components.
* This bnx2fc - cnic interface api callback is used after following
* conditions are met -
* a) underlying network interface is up (marked by event NETDEV_UP
* from netdev
* b) bnx2fc adatper structure is registered.
*/
static void bnx2fc_ulp_start(void *handle)
{
struct bnx2fc_hba *hba = handle;
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
struct fc_lport *lport;
mutex_lock(&bnx2fc_dev_lock);
if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
bnx2fc_fw_init(hba);
BNX2FC_MISC_DBG("bnx2fc started.\n");
list_for_each_entry(interface, &if_list, list) {
if (interface->hba == hba) {
ctlr = bnx2fc_to_ctlr(interface);
lport = ctlr->lp;
/* Kick off Fabric discovery*/
printk(KERN_ERR PFX "ulp_init: start discovery\n");
lport->tt.frame_send = bnx2fc_xmit;
bnx2fc_start_disc(interface);
}
}
mutex_unlock(&bnx2fc_dev_lock);
}
static void bnx2fc_port_shutdown(struct fc_lport *lport)
{
BNX2FC_MISC_DBG("Entered %s\n", __func__);
fc_fabric_logoff(lport);
fc_lport_destroy(lport);
}
static void bnx2fc_stop(struct bnx2fc_interface *interface)
{
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct fc_lport *lport;
struct fc_lport *vport;
if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
return;
lport = ctlr->lp;
bnx2fc_port_shutdown(lport);
mutex_lock(&lport->lp_mutex);
list_for_each_entry(vport, &lport->vports, list)
fc_host_port_type(vport->host) =
FC_PORTTYPE_UNKNOWN;
mutex_unlock(&lport->lp_mutex);
fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
fcoe_ctlr_link_down(ctlr);
fcoe_clean_pending_queue(lport);
}
static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
{
#define BNX2FC_INIT_POLL_TIME (1000 / HZ)
int rc = -1;
int i = HZ;
rc = bnx2fc_bind_adapter_devices(hba);
if (rc) {
printk(KERN_ALERT PFX
"bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
goto err_out;
}
rc = bnx2fc_send_fw_fcoe_init_msg(hba);
if (rc) {
printk(KERN_ALERT PFX
"bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
goto err_unbind;
}
/*
* Wait until the adapter init message is complete, and adapter
* state is UP.
*/
while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
msleep(BNX2FC_INIT_POLL_TIME);
if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. "
"Ignoring...\n",
hba->cnic->netdev->name);
rc = -1;
goto err_unbind;
}
set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
return 0;
err_unbind:
bnx2fc_unbind_adapter_devices(hba);
err_out:
return rc;
}
static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
{
if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
timer_setup(&hba->destroy_timer, bnx2fc_destroy_timer,
0);
hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
jiffies;
add_timer(&hba->destroy_timer);
wait_event_interruptible(hba->destroy_wait,
test_bit(BNX2FC_FLAG_DESTROY_CMPL,
&hba->flags));
clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
/* This should never happen */
if (signal_pending(current))
flush_signals(current);
del_timer_sync(&hba->destroy_timer);
}
bnx2fc_unbind_adapter_devices(hba);
}
}
/**
* bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
*
* @handle: transport handle pointing to adapter structure
*
* Driver checks if adapter is already in shutdown mode, if not start
* the shutdown process.
*/
static void bnx2fc_ulp_stop(void *handle)
{
struct bnx2fc_hba *hba = handle;
struct bnx2fc_interface *interface;
printk(KERN_ERR "ULP_STOP\n");
mutex_lock(&bnx2fc_dev_lock);
if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
goto exit;
list_for_each_entry(interface, &if_list, list) {
if (interface->hba == hba)
bnx2fc_stop(interface);
}
BUG_ON(hba->num_ofld_sess != 0);
mutex_lock(&hba->hba_mutex);
clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
clear_bit(ADAPTER_STATE_GOING_DOWN,
&hba->adapter_state);
clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
mutex_unlock(&hba->hba_mutex);
bnx2fc_fw_destroy(hba);
exit:
mutex_unlock(&bnx2fc_dev_lock);
}
static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
{
struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
struct fc_lport *lport;
int wait_cnt = 0;
BNX2FC_MISC_DBG("Entered %s\n", __func__);
/* Kick off FIP/FLOGI */
if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
printk(KERN_ERR PFX "Init not done yet\n");
return;
}
lport = ctlr->lp;
BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
if (!bnx2fc_link_ok(lport) && interface->enabled) {
BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
fcoe_ctlr_link_up(ctlr);
fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
}
/* wait for the FCF to be selected before issuing FLOGI */
while (!ctlr->sel_fcf) {
msleep(250);
/* give up after 3 secs */
if (++wait_cnt > 12)
break;
}
/* Reset max receive frame size to default */
if (fc_set_mfs(lport, BNX2FC_MFS))
return;
fc_lport_init(lport);
fc_fabric_login(lport);
}
/**
* bnx2fc_ulp_init - Initialize an adapter instance
*
* @dev : cnic device handle
* Called from cnic_register_driver() context to initialize all
* enumerated cnic devices. This routine allocates adapter structure
* and other device specific resources.
*/
static void bnx2fc_ulp_init(struct cnic_dev *dev)
{
struct bnx2fc_hba *hba;
int rc = 0;
BNX2FC_MISC_DBG("Entered %s\n", __func__);
/* bnx2fc works only when bnx2x is loaded */
if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
(dev->max_fcoe_conn == 0)) {
printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
" flags: %lx fcoe_conn: %d\n",
dev->netdev->name, dev->flags, dev->max_fcoe_conn);
return;
}
hba = bnx2fc_hba_create(dev);
if (!hba) {
printk(KERN_ERR PFX "hba initialization failed\n");
return;
}
pr_info(PFX "FCoE initialized for %s.\n", dev->netdev->name);
/* Add HBA to the adapter list */
mutex_lock(&bnx2fc_dev_lock);
list_add_tail(&hba->list, &adapter_list);
adapter_count++;
mutex_unlock(&bnx2fc_dev_lock);
dev->fcoe_cap = &hba->fcoe_cap;
clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
rc = dev->register_device(dev, CNIC_ULP_FCOE,
(void *) hba);
if (rc)
printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
else
set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
}
/* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
{
struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
if (interface->enabled) {
if (!ctlr->lp) {
pr_err(PFX "__bnx2fc_disable: lport not found\n");
return -ENODEV;
} else {
interface->enabled = false;
fcoe_ctlr_link_down(ctlr);
fcoe_clean_pending_queue(ctlr->lp);
}
}
return 0;
}
/*
* Deperecated: Use bnx2fc_enabled()
*/
static int bnx2fc_disable(struct net_device *netdev)
{
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
int rc = 0;
rtnl_lock();
mutex_lock(&bnx2fc_dev_lock);
interface = bnx2fc_interface_lookup(netdev);
ctlr = bnx2fc_to_ctlr(interface);
if (!interface) {
rc = -ENODEV;
pr_err(PFX "bnx2fc_disable: interface not found\n");
} else {
rc = __bnx2fc_disable(ctlr);
}
mutex_unlock(&bnx2fc_dev_lock);
rtnl_unlock();
return rc;
}
static uint bnx2fc_npiv_create_vports(struct fc_lport *lport,
struct cnic_fc_npiv_tbl *npiv_tbl)
{
struct fc_vport_identifiers vpid;
uint i, created = 0;
u64 wwnn = 0;
char wwpn_str[32];
char wwnn_str[32];
if (npiv_tbl->count > MAX_NPIV_ENTRIES) {
BNX2FC_HBA_DBG(lport, "Exceeded count max of npiv table\n");
goto done;
}
/* Sanity check the first entry to make sure it's not 0 */
if (wwn_to_u64(npiv_tbl->wwnn[0]) == 0 &&
wwn_to_u64(npiv_tbl->wwpn[0]) == 0) {
BNX2FC_HBA_DBG(lport, "First NPIV table entries invalid.\n");
goto done;
}
vpid.roles = FC_PORT_ROLE_FCP_INITIATOR;
vpid.vport_type = FC_PORTTYPE_NPIV;
vpid.disable = false;
for (i = 0; i < npiv_tbl->count; i++) {
wwnn = wwn_to_u64(npiv_tbl->wwnn[i]);
if (wwnn == 0) {
/*
* If we get a 0 element from for the WWNN then assume
* the WWNN should be the same as the physical port.
*/
wwnn = lport->wwnn;
}
vpid.node_name = wwnn;
vpid.port_name = wwn_to_u64(npiv_tbl->wwpn[i]);
scnprintf(vpid.symbolic_name, sizeof(vpid.symbolic_name),
"NPIV[%u]:%016llx-%016llx",
created, vpid.port_name, vpid.node_name);
fcoe_wwn_to_str(vpid.node_name, wwnn_str, sizeof(wwnn_str));
fcoe_wwn_to_str(vpid.port_name, wwpn_str, sizeof(wwpn_str));
BNX2FC_HBA_DBG(lport, "Creating vport %s:%s.\n", wwnn_str,
wwpn_str);
if (fc_vport_create(lport->host, 0, &vpid))
created++;
else
BNX2FC_HBA_DBG(lport, "Failed to create vport\n");
}
done:
return created;
}
static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
{
struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
struct bnx2fc_hba *hba;
struct cnic_fc_npiv_tbl *npiv_tbl;
struct fc_lport *lport;
if (!interface->enabled) {
if (!ctlr->lp) {
pr_err(PFX "__bnx2fc_enable: lport not found\n");
return -ENODEV;
} else if (!bnx2fc_link_ok(ctlr->lp)) {
fcoe_ctlr_link_up(ctlr);
interface->enabled = true;
}
}
/* Create static NPIV ports if any are contained in NVRAM */
hba = interface->hba;
lport = ctlr->lp;
if (!hba)
goto done;
if (!hba->cnic)
goto done;
if (!lport)
goto done;
if (!lport->host)
goto done;
if (!hba->cnic->get_fc_npiv_tbl)
goto done;
npiv_tbl = kzalloc(sizeof(struct cnic_fc_npiv_tbl), GFP_KERNEL);
if (!npiv_tbl)
goto done;
if (hba->cnic->get_fc_npiv_tbl(hba->cnic, npiv_tbl))
goto done_free;
bnx2fc_npiv_create_vports(lport, npiv_tbl);
done_free:
kfree(npiv_tbl);
done:
return 0;
}
/*
* Deprecated: Use bnx2fc_enabled()
*/
static int bnx2fc_enable(struct net_device *netdev)
{
struct bnx2fc_interface *interface;
struct fcoe_ctlr *ctlr;
int rc = 0;
rtnl_lock();
mutex_lock(&bnx2fc_dev_lock);
interface = bnx2fc_interface_lookup(netdev);
ctlr = bnx2fc_to_ctlr(interface);
if (!interface) {
rc = -ENODEV;
pr_err(PFX "bnx2fc_enable: interface not found\n");
} else {
rc = __bnx2fc_enable(ctlr);
}
mutex_unlock(&bnx2fc_dev_lock);
rtnl_unlock();
return rc;
}
/**
* bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
* @cdev: The FCoE Controller that is being enabled or disabled
*
* fcoe_sysfs will ensure that the state of 'enabled' has
* changed, so no checking is necessary here. This routine simply
* calls fcoe_enable or fcoe_disable, both of which are deprecated.
* When those routines are removed the functionality can be merged
* here.
*/
static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
{
struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);
switch (cdev->enabled) {
case FCOE_CTLR_ENABLED:
return __bnx2fc_enable(ctlr);
case FCOE_CTLR_DISABLED:
return __bnx2fc_disable(ctlr);
case FCOE_CTLR_UNUSED:
default:
return -ENOTSUPP;
}
}
enum bnx2fc_create_link_state {
BNX2FC_CREATE_LINK_DOWN,
BNX2FC_CREATE_LINK_UP,
};
/**
* _bnx2fc_create() - Create bnx2fc FCoE interface
* @netdev : The net_device object the Ethernet interface to create on
* @fip_mode: The FIP mode for this creation
* @link_state: The ctlr link state on creation
*
* Called from either the libfcoe 'create' module parameter
* via fcoe_create or from fcoe_syfs's ctlr_create file.
*
* libfcoe's 'create' module parameter is deprecated so some
* consolidation of code can be done when that interface is
* removed.
*
* Returns: 0 for success
*/
static int _bnx2fc_create(struct net_device *netdev,
enum fip_mode fip_mode,
enum bnx2fc_create_link_state link_state)
{
struct fcoe_ctlr_device *cdev;
struct fcoe_ctlr *ctlr;
struct bnx2fc_interface *interface;
struct bnx2fc_hba *hba;
struct net_device *phys_dev = netdev;
struct fc_lport *lport;
struct ethtool_drvinfo drvinfo;
int rc = 0;
int vlan_id = 0;
BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
if (fip_mode != FIP_MODE_FABRIC) {
printk(KERN_ERR "fip mode not FABRIC\n");
return -EIO;
}
rtnl_lock();
mutex_lock(&bnx2fc_dev_lock);
if (!try_module_get(THIS_MODULE)) {
rc = -EINVAL;
goto mod_err;
}
/* obtain physical netdev */
if (is_vlan_dev(netdev))
phys_dev = vlan_dev_real_dev(netdev);
/* verify if the physical device is a netxtreme2 device */
if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
memset(&drvinfo, 0, sizeof(drvinfo));
phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
printk(KERN_ERR PFX "Not a netxtreme2 device\n");
rc = -EINVAL;
goto netdev_err;
}
} else {
printk(KERN_ERR PFX "unable to obtain drv_info\n");
rc = -EINVAL;
goto netdev_err;
}
/* obtain interface and initialize rest of the structure */
hba = bnx2fc_hba_lookup(phys_dev);
if (!hba) {
rc = -ENODEV;
printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
goto netdev_err;
}
if (bnx2fc_interface_lookup(netdev)) {
rc = -EEXIST;
goto netdev_err;
}
interface = bnx2fc_interface_create(hba, netdev, fip_mode);
if (!interface) {
printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
rc = -ENOMEM;
goto netdev_err;
}
if (is_vlan_dev(netdev)) {
vlan_id = vlan_dev_vlan_id(netdev);
interface->vlan_enabled = 1;
}
ctlr = bnx2fc_to_ctlr(interface);
cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
interface->vlan_id = vlan_id;
interface->tm_timeout = BNX2FC_TM_TIMEOUT;
interface->timer_work_queue =
create_singlethread_workqueue("bnx2fc_timer_wq");
if (!interface->timer_work_queue) {
printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
rc = -EINVAL;
goto ifput_err;
}
lport = bnx2fc_if_create(interface, &cdev->dev, 0);
if (!lport) {
printk(KERN_ERR PFX "Failed to create interface (%s)\n",
netdev->name);
rc = -EINVAL;
goto if_create_err;
}
/* Add interface to if_list */
list_add_tail(&interface->list, &if_list);
lport->boot_time = jiffies;
/* Make this master N_port */
ctlr->lp = lport;
if (link_state == BNX2FC_CREATE_LINK_UP)
cdev->enabled = FCOE_CTLR_ENABLED;
else
cdev->enabled = FCOE_CTLR_DISABLED;
if (link_state == BNX2FC_CREATE_LINK_UP &&
!bnx2fc_link_ok(lport)) {
fcoe_ctlr_link_up(ctlr);
fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
}
BNX2FC_HBA_DBG(lport, "create: START DISC\n");
bnx2fc_start_disc(interface);
if (link_state == BNX2FC_CREATE_LINK_UP)
interface->enabled = true;
/*
* Release from kref_init in bnx2fc_interface_setup, on success
* lport should be holding a reference taken in bnx2fc_if_create
*/
bnx2fc_interface_put(interface);
/* put netdev that was held while calling dev_get_by_name */
mutex_unlock(&bnx2fc_dev_lock);
rtnl_unlock();
return 0;
if_create_err:
destroy_workqueue(interface->timer_work_queue);
ifput_err:
bnx2fc_net_cleanup(interface);
bnx2fc_interface_put(interface);
goto mod_err;
netdev_err:
module_put(THIS_MODULE);
mod_err:
mutex_unlock(&bnx2fc_dev_lock);
rtnl_unlock();
return rc;
}
/**
* bnx2fc_create() - Create a bnx2fc interface
* @netdev : The net_device object the Ethernet interface to create on
* @fip_mode: The FIP mode for this creation
*
* Called from fcoe transport
*
* Returns: 0 for success
*/
static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode)
{
return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP);
}
/**
* bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
* @netdev: The net_device to be used by the allocated FCoE Controller
*
* This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
* in a link_down state. The allows the user an opportunity to configure
* the FCoE Controller from sysfs before enabling the FCoE Controller.
*
* Creating in with this routine starts the FCoE Controller in Fabric
* mode. The user can change to VN2VN or another mode before enabling.
*/
static int bnx2fc_ctlr_alloc(struct net_device *netdev)
{
return _bnx2fc_create(netdev, FIP_MODE_FABRIC,
BNX2FC_CREATE_LINK_DOWN);
}
/**
* bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
*
* @cnic: Pointer to cnic device instance
*
**/
static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
{
struct bnx2fc_hba *hba;
/* Called with bnx2fc_dev_lock held */
list_for_each_entry(hba, &adapter_list, list) {
if (hba->cnic == cnic)
return hba;
}
return NULL;
}
static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
*netdev)
{
struct bnx2fc_interface *interface;
/* Called with bnx2fc_dev_lock held */
list_for_each_entry(interface, &if_list, list) {
if (interface->netdev == netdev)
return interface;
}
return NULL;
}
static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
*phys_dev)
{
struct bnx2fc_hba *hba;
/* Called with bnx2fc_dev_lock held */
list_for_each_entry(hba, &adapter_list, list) {
if (hba->phys_dev == phys_dev)
return hba;
}
printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
return NULL;
}
/**
* bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
*
* @dev: cnic device handle
*/
static void bnx2fc_ulp_exit(struct cnic_dev *dev)
{
struct bnx2fc_hba *hba;
struct bnx2fc_interface *interface, *tmp;
BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
dev->netdev->name, dev->flags);
return;
}
mutex_lock(&bnx2fc_dev_lock);
hba = bnx2fc_find_hba_for_cnic(dev);
if (!hba) {
printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
dev);
mutex_unlock(&bnx2fc_dev_lock);
return;
}
list_del_init(&hba->list);
adapter_count--;
list_for_each_entry_safe(interface, tmp, &if_list, list)
/* destroy not called yet, move to quiesced list */
if (interface->hba == hba)
__bnx2fc_destroy(interface);
mutex_unlock(&bnx2fc_dev_lock);
bnx2fc_ulp_stop(hba);
/* unregister cnic device */
if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
bnx2fc_hba_destroy(hba);
}
static void bnx2fc_rport_terminate_io(struct fc_rport *rport)
{
/* This is a no-op */
}
/**
* bnx2fc_fcoe_reset - Resets the fcoe
*
* @shost: shost the reset is from
*
* Returns: always 0
*/
static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
{
struct fc_lport *lport = shost_priv(shost);
fc_lport_reset(lport);
return 0;
}
static bool bnx2fc_match(struct net_device *netdev)
{
struct net_device *phys_dev = netdev;
mutex_lock(&bnx2fc_dev_lock);
if (is_vlan_dev(netdev))
phys_dev = vlan_dev_real_dev(netdev);
if (bnx2fc_hba_lookup(phys_dev)) {
mutex_unlock(&bnx2fc_dev_lock);
return true;
}
mutex_unlock(&bnx2fc_dev_lock);
return false;
}
static struct fcoe_transport bnx2fc_transport = {
.name = {"bnx2fc"},
.attached = false,
.list = LIST_HEAD_INIT(bnx2fc_transport.list),
.alloc = bnx2fc_ctlr_alloc,
.match = bnx2fc_match,
.create = bnx2fc_create,
.destroy = bnx2fc_destroy,
.enable = bnx2fc_enable,
.disable = bnx2fc_disable,
};
/**
* bnx2fc_cpu_online - Create a receive thread for an online CPU
*
* @cpu: cpu index for the online cpu
*/
static int bnx2fc_cpu_online(unsigned int cpu)
{
struct bnx2fc_percpu_s *p;
struct task_struct *thread;
p = &per_cpu(bnx2fc_percpu, cpu);
thread = kthread_create_on_node(bnx2fc_percpu_io_thread,
(void *)p, cpu_to_node(cpu),
"bnx2fc_thread/%d", cpu);
if (IS_ERR(thread))
return PTR_ERR(thread);
/* bind thread to the cpu */
kthread_bind(thread, cpu);
p->iothread = thread;
wake_up_process(thread);
return 0;
}
static int bnx2fc_cpu_offline(unsigned int cpu)
{
struct bnx2fc_percpu_s *p;
struct task_struct *thread;
struct bnx2fc_work *work, *tmp;
BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
/* Prevent any new work from being queued for this CPU */
p = &per_cpu(bnx2fc_percpu, cpu);
spin_lock_bh(&p->fp_work_lock);
thread = p->iothread;
p->iothread = NULL;
/* Free all work in the list */
list_for_each_entry_safe(work, tmp, &p->work_list, list) {
list_del_init(&work->list);
bnx2fc_process_cq_compl(work->tgt, work->wqe, work->rq_data,
work->num_rq, work->task);
kfree(work);
}
spin_unlock_bh(&p->fp_work_lock);
if (thread)
kthread_stop(thread);
return 0;
}
static int bnx2fc_slave_configure(struct scsi_device *sdev)
{
if (!bnx2fc_queue_depth)
return 0;
scsi_change_queue_depth(sdev, bnx2fc_queue_depth);
return 0;
}
static enum cpuhp_state bnx2fc_online_state;
/**
* bnx2fc_mod_init - module init entry point
*
* Initialize driver wide global data structures, and register
* with cnic module
**/
static int __init bnx2fc_mod_init(void)
{
struct fcoe_percpu_s *bg;
struct task_struct *l2_thread;
int rc = 0;
unsigned int cpu = 0;
struct bnx2fc_percpu_s *p;
printk(KERN_INFO PFX "%s", version);
/* register as a fcoe transport */
rc = fcoe_transport_attach(&bnx2fc_transport);
if (rc) {
printk(KERN_ERR "failed to register an fcoe transport, check "
"if libfcoe is loaded\n");
goto out;
}
INIT_LIST_HEAD(&adapter_list);
INIT_LIST_HEAD(&if_list);
mutex_init(&bnx2fc_dev_lock);
adapter_count = 0;
/* Attach FC transport template */
rc = bnx2fc_attach_transport();
if (rc)
goto detach_ft;
bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
if (!bnx2fc_wq) {
rc = -ENOMEM;
goto release_bt;
}
bg = &bnx2fc_global;
skb_queue_head_init(&bg->fcoe_rx_list);
l2_thread = kthread_run(bnx2fc_l2_rcv_thread,
(void *)bg,
"bnx2fc_l2_thread");
if (IS_ERR(l2_thread)) {
rc = PTR_ERR(l2_thread);
goto free_wq;
}
spin_lock_bh(&bg->fcoe_rx_list.lock);
bg->kthread = l2_thread;
spin_unlock_bh(&bg->fcoe_rx_list.lock);
for_each_possible_cpu(cpu) {
p = &per_cpu(bnx2fc_percpu, cpu);
INIT_LIST_HEAD(&p->work_list);
spin_lock_init(&p->fp_work_lock);
}
rc = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "scsi/bnx2fc:online",
bnx2fc_cpu_online, bnx2fc_cpu_offline);
if (rc < 0)
goto stop_thread;
bnx2fc_online_state = rc;
cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
return 0;
stop_thread:
kthread_stop(l2_thread);
free_wq:
destroy_workqueue(bnx2fc_wq);
release_bt:
bnx2fc_release_transport();
detach_ft:
fcoe_transport_detach(&bnx2fc_transport);
out:
return rc;
}
static void __exit bnx2fc_mod_exit(void)
{
LIST_HEAD(to_be_deleted);
struct bnx2fc_hba *hba, *next;
struct fcoe_percpu_s *bg;
struct task_struct *l2_thread;
struct sk_buff *skb;
/*
* NOTE: Since cnic calls register_driver routine rtnl_lock,
* it will have higher precedence than bnx2fc_dev_lock.
* unregister_device() cannot be called with bnx2fc_dev_lock
* held.
*/
mutex_lock(&bnx2fc_dev_lock);
list_splice_init(&adapter_list, &to_be_deleted);
adapter_count = 0;
mutex_unlock(&bnx2fc_dev_lock);
/* Unregister with cnic */
list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
list_del_init(&hba->list);
printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
hba);
bnx2fc_ulp_stop(hba);
/* unregister cnic device */
if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
&hba->reg_with_cnic))
hba->cnic->unregister_device(hba->cnic,
CNIC_ULP_FCOE);
bnx2fc_hba_destroy(hba);
}
cnic_unregister_driver(CNIC_ULP_FCOE);
/* Destroy global thread */
bg = &bnx2fc_global;
spin_lock_bh(&bg->fcoe_rx_list.lock);
l2_thread = bg->kthread;
bg->kthread = NULL;
while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
kfree_skb(skb);
spin_unlock_bh(&bg->fcoe_rx_list.lock);
if (l2_thread)
kthread_stop(l2_thread);
cpuhp_remove_state(bnx2fc_online_state);
destroy_workqueue(bnx2fc_wq);
/*
* detach from scsi transport
* must happen after all destroys are done
*/
bnx2fc_release_transport();
/* detach from fcoe transport */
fcoe_transport_detach(&bnx2fc_transport);
}
module_init(bnx2fc_mod_init);
module_exit(bnx2fc_mod_exit);
static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
.set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled,
.get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb,
.get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb,
.get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb,
.get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb,
.get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb,
.get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb,
.get_fcoe_fcf_selected = fcoe_fcf_get_selected,
.get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id,
};
static struct fc_function_template bnx2fc_transport_function = {
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.show_host_supported_fc4s = 1,
.show_host_active_fc4s = 1,
.show_host_maxframe_size = 1,
.show_host_port_id = 1,
.show_host_supported_speeds = 1,
.get_host_speed = fc_get_host_speed,
.show_host_speed = 1,
.show_host_port_type = 1,
.get_host_port_state = fc_get_host_port_state,
.show_host_port_state = 1,
.show_host_symbolic_name = 1,
.dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
sizeof(struct bnx2fc_rport)),
.show_rport_maxframe_size = 1,
.show_rport_supported_classes = 1,
.show_host_fabric_name = 1,
.show_starget_node_name = 1,
.show_starget_port_name = 1,
.show_starget_port_id = 1,
.set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.get_fc_host_stats = bnx2fc_get_host_stats,
.issue_fc_host_lip = bnx2fc_fcoe_reset,
.terminate_rport_io = bnx2fc_rport_terminate_io,
.vport_create = bnx2fc_vport_create,
.vport_delete = bnx2fc_vport_destroy,
.vport_disable = bnx2fc_vport_disable,
.bsg_request = fc_lport_bsg_request,
};
static struct fc_function_template bnx2fc_vport_xport_function = {
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.show_host_supported_fc4s = 1,
.show_host_active_fc4s = 1,
.show_host_maxframe_size = 1,
.show_host_port_id = 1,
.show_host_supported_speeds = 1,
.get_host_speed = fc_get_host_speed,
.show_host_speed = 1,
.show_host_port_type = 1,
.get_host_port_state = fc_get_host_port_state,
.show_host_port_state = 1,
.show_host_symbolic_name = 1,
.dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
sizeof(struct bnx2fc_rport)),
.show_rport_maxframe_size = 1,
.show_rport_supported_classes = 1,
.show_host_fabric_name = 1,
.show_starget_node_name = 1,
.show_starget_port_name = 1,
.show_starget_port_id = 1,
.set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.get_fc_host_stats = fc_get_host_stats,
.issue_fc_host_lip = bnx2fc_fcoe_reset,
.terminate_rport_io = fc_rport_terminate_io,
.bsg_request = fc_lport_bsg_request,
};
/*
* Additional scsi_host attributes.
*/
static ssize_t
bnx2fc_tm_timeout_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct fc_lport *lport = shost_priv(shost);
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
sprintf(buf, "%u\n", interface->tm_timeout);
return strlen(buf);
}
static ssize_t
bnx2fc_tm_timeout_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct fc_lport *lport = shost_priv(shost);
struct fcoe_port *port = lport_priv(lport);
struct bnx2fc_interface *interface = port->priv;
int rval, val;
rval = kstrtouint(buf, 10, &val);
if (rval)
return rval;
if (val > 255)
return -ERANGE;
interface->tm_timeout = (u8)val;
return strlen(buf);
}
static DEVICE_ATTR(tm_timeout, S_IRUGO|S_IWUSR, bnx2fc_tm_timeout_show,
bnx2fc_tm_timeout_store);
static struct attribute *bnx2fc_host_attrs[] = {
&dev_attr_tm_timeout.attr,
NULL,
};
ATTRIBUTE_GROUPS(bnx2fc_host);
/*
* scsi_host_template structure used while registering with SCSI-ml
*/
static struct scsi_host_template bnx2fc_shost_template = {
.module = THIS_MODULE,
.name = "QLogic Offload FCoE Initiator",
.queuecommand = bnx2fc_queuecommand,
.eh_timed_out = fc_eh_timed_out,
.eh_abort_handler = bnx2fc_eh_abort, /* abts */
.eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
.eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
.eh_host_reset_handler = fc_eh_host_reset,
.slave_alloc = fc_slave_alloc,
.change_queue_depth = scsi_change_queue_depth,
.this_id = -1,
.cmd_per_lun = 3,
.sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
.dma_boundary = 0x7fff,
.max_sectors = 0x3fbf,
.track_queue_depth = 1,
.slave_configure = bnx2fc_slave_configure,
.shost_groups = bnx2fc_host_groups,
.cmd_size = sizeof(struct bnx2fc_priv),
};
static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
.frame_send = bnx2fc_xmit,
.elsct_send = bnx2fc_elsct_send,
.fcp_abort_io = bnx2fc_abort_io,
.fcp_cleanup = bnx2fc_cleanup,
.get_lesb = fcoe_get_lesb,
.rport_event_callback = bnx2fc_rport_event_handler,
};
/*
* bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
* structure carrying callback function pointers
*/
static struct cnic_ulp_ops bnx2fc_cnic_cb = {
.owner = THIS_MODULE,
.cnic_init = bnx2fc_ulp_init,
.cnic_exit = bnx2fc_ulp_exit,
.cnic_start = bnx2fc_ulp_start,
.cnic_stop = bnx2fc_ulp_stop,
.indicate_kcqes = bnx2fc_indicate_kcqe,
.indicate_netevent = bnx2fc_indicate_netevent,
.cnic_get_stats = bnx2fc_ulp_get_stats,
};
|
linux-master
|
drivers/scsi/bnx2fc/bnx2fc_fcoe.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/* ------------------------------------------------------------
* ibmvscsi.c
* (C) Copyright IBM Corporation 1994, 2004
* Authors: Colin DeVilbiss ([email protected])
* Santiago Leon ([email protected])
* Dave Boutcher ([email protected])
*
* ------------------------------------------------------------
* Emulation of a SCSI host adapter for Virtual I/O devices
*
* This driver supports the SCSI adapter implemented by the IBM
* Power5 firmware. That SCSI adapter is not a physical adapter,
* but allows Linux SCSI peripheral drivers to directly
* access devices in another logical partition on the physical system.
*
* The virtual adapter(s) are present in the open firmware device
* tree just like real adapters.
*
* One of the capabilities provided on these systems is the ability
* to DMA between partitions. The architecture states that for VSCSI,
* the server side is allowed to DMA to and from the client. The client
* is never trusted to DMA to or from the server directly.
*
* Messages are sent between partitions on a "Command/Response Queue"
* (CRQ), which is just a buffer of 16 byte entries in the receiver's
* Senders cannot access the buffer directly, but send messages by
* making a hypervisor call and passing in the 16 bytes. The hypervisor
* puts the message in the next 16 byte space in round-robin fashion,
* turns on the high order bit of the message (the valid bit), and
* generates an interrupt to the receiver (if interrupts are turned on.)
* The receiver just turns off the valid bit when they have copied out
* the message.
*
* The VSCSI client builds a SCSI Remote Protocol (SRP) Information Unit
* (IU) (as defined in the T10 standard available at www.t10.org), gets
* a DMA address for the message, and sends it to the server as the
* payload of a CRQ message. The server DMAs the SRP IU and processes it,
* including doing any additional data transfers. When it is done, it
* DMAs the SRP response back to the same address as the request came from,
* and sends a CRQ message back to inform the client that the request has
* completed.
*
* TODO: This is currently pretty tied to the IBM pSeries hypervisor
* interfaces. It would be really nice to abstract this above an RDMA
* layer.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/pm.h>
#include <linux/kthread.h>
#include <asm/firmware.h>
#include <asm/vio.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_transport_srp.h>
#include "ibmvscsi.h"
/* The values below are somewhat arbitrary default values, but
* OS/400 will use 3 busses (disks, CDs, tapes, I think.)
* Note that there are 3 bits of channel value, 6 bits of id, and
* 5 bits of LUN.
*/
static int max_id = 64;
static int max_channel = 3;
static int init_timeout = 300;
static int login_timeout = 60;
static int info_timeout = 30;
static int abort_timeout = 60;
static int reset_timeout = 60;
static int max_requests = IBMVSCSI_MAX_REQUESTS_DEFAULT;
static int max_events = IBMVSCSI_MAX_REQUESTS_DEFAULT + 2;
static int fast_fail = 1;
static int client_reserve = 1;
static char partition_name[96] = "UNKNOWN";
static unsigned int partition_number = -1;
static LIST_HEAD(ibmvscsi_head);
static DEFINE_SPINLOCK(ibmvscsi_driver_lock);
static struct scsi_transport_template *ibmvscsi_transport_template;
#define IBMVSCSI_VERSION "1.5.9"
MODULE_DESCRIPTION("IBM Virtual SCSI");
MODULE_AUTHOR("Dave Boutcher");
MODULE_LICENSE("GPL");
MODULE_VERSION(IBMVSCSI_VERSION);
module_param_named(max_id, max_id, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(max_id, "Largest ID value for each channel [Default=64]");
module_param_named(max_channel, max_channel, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(max_channel, "Largest channel value [Default=3]");
module_param_named(init_timeout, init_timeout, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(init_timeout, "Initialization timeout in seconds");
module_param_named(max_requests, max_requests, int, S_IRUGO);
MODULE_PARM_DESC(max_requests, "Maximum requests for this adapter");
module_param_named(fast_fail, fast_fail, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(fast_fail, "Enable fast fail. [Default=1]");
module_param_named(client_reserve, client_reserve, int, S_IRUGO );
MODULE_PARM_DESC(client_reserve, "Attempt client managed reserve/release");
static void ibmvscsi_handle_crq(struct viosrp_crq *crq,
struct ibmvscsi_host_data *hostdata);
/* ------------------------------------------------------------
* Routines for managing the command/response queue
*/
/**
* ibmvscsi_handle_event: - Interrupt handler for crq events
* @irq: number of irq to handle, not used
* @dev_instance: ibmvscsi_host_data of host that received interrupt
*
* Disables interrupts and schedules srp_task
* Always returns IRQ_HANDLED
*/
static irqreturn_t ibmvscsi_handle_event(int irq, void *dev_instance)
{
struct ibmvscsi_host_data *hostdata =
(struct ibmvscsi_host_data *)dev_instance;
vio_disable_interrupts(to_vio_dev(hostdata->dev));
tasklet_schedule(&hostdata->srp_task);
return IRQ_HANDLED;
}
/**
* ibmvscsi_release_crq_queue() - Deallocates data and unregisters CRQ
* @queue: crq_queue to initialize and register
* @hostdata: ibmvscsi_host_data of host
* @max_requests: maximum requests (unused)
*
* Frees irq, deallocates a page for messages, unmaps dma, and unregisters
* the crq with the hypervisor.
*/
static void ibmvscsi_release_crq_queue(struct crq_queue *queue,
struct ibmvscsi_host_data *hostdata,
int max_requests)
{
long rc = 0;
struct vio_dev *vdev = to_vio_dev(hostdata->dev);
free_irq(vdev->irq, (void *)hostdata);
tasklet_kill(&hostdata->srp_task);
do {
if (rc)
msleep(100);
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
dma_unmap_single(hostdata->dev,
queue->msg_token,
queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
free_page((unsigned long)queue->msgs);
}
/**
* crq_queue_next_crq: - Returns the next entry in message queue
* @queue: crq_queue to use
*
* Returns pointer to next entry in queue, or NULL if there are no new
* entried in the CRQ.
*/
static struct viosrp_crq *crq_queue_next_crq(struct crq_queue *queue)
{
struct viosrp_crq *crq;
unsigned long flags;
spin_lock_irqsave(&queue->lock, flags);
crq = &queue->msgs[queue->cur];
if (crq->valid != VIOSRP_CRQ_FREE) {
if (++queue->cur == queue->size)
queue->cur = 0;
/* Ensure the read of the valid bit occurs before reading any
* other bits of the CRQ entry
*/
rmb();
} else
crq = NULL;
spin_unlock_irqrestore(&queue->lock, flags);
return crq;
}
/**
* ibmvscsi_send_crq: - Send a CRQ
* @hostdata: the adapter
* @word1: the first 64 bits of the data
* @word2: the second 64 bits of the data
*/
static int ibmvscsi_send_crq(struct ibmvscsi_host_data *hostdata,
u64 word1, u64 word2)
{
struct vio_dev *vdev = to_vio_dev(hostdata->dev);
/*
* Ensure the command buffer is flushed to memory before handing it
* over to the VIOS to prevent it from fetching any stale data.
*/
mb();
return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, word1, word2);
}
/**
* ibmvscsi_task: - Process srps asynchronously
* @data: ibmvscsi_host_data of host
*/
static void ibmvscsi_task(void *data)
{
struct ibmvscsi_host_data *hostdata = (struct ibmvscsi_host_data *)data;
struct vio_dev *vdev = to_vio_dev(hostdata->dev);
struct viosrp_crq *crq;
int done = 0;
while (!done) {
/* Pull all the valid messages off the CRQ */
while ((crq = crq_queue_next_crq(&hostdata->queue)) != NULL) {
ibmvscsi_handle_crq(crq, hostdata);
crq->valid = VIOSRP_CRQ_FREE;
wmb();
}
vio_enable_interrupts(vdev);
crq = crq_queue_next_crq(&hostdata->queue);
if (crq != NULL) {
vio_disable_interrupts(vdev);
ibmvscsi_handle_crq(crq, hostdata);
crq->valid = VIOSRP_CRQ_FREE;
wmb();
} else {
done = 1;
}
}
}
static void gather_partition_info(void)
{
const char *ppartition_name;
const __be32 *p_number_ptr;
/* Retrieve information about this partition */
if (!of_root)
return;
of_node_get(of_root);
ppartition_name = of_get_property(of_root, "ibm,partition-name", NULL);
if (ppartition_name)
strscpy(partition_name, ppartition_name,
sizeof(partition_name));
p_number_ptr = of_get_property(of_root, "ibm,partition-no", NULL);
if (p_number_ptr)
partition_number = of_read_number(p_number_ptr, 1);
of_node_put(of_root);
}
static void set_adapter_info(struct ibmvscsi_host_data *hostdata)
{
memset(&hostdata->madapter_info, 0x00,
sizeof(hostdata->madapter_info));
dev_info(hostdata->dev, "SRP_VERSION: %s\n", SRP_VERSION);
strcpy(hostdata->madapter_info.srp_version, SRP_VERSION);
strncpy(hostdata->madapter_info.partition_name, partition_name,
sizeof(hostdata->madapter_info.partition_name));
hostdata->madapter_info.partition_number =
cpu_to_be32(partition_number);
hostdata->madapter_info.mad_version = cpu_to_be32(SRP_MAD_VERSION_1);
hostdata->madapter_info.os_type = cpu_to_be32(SRP_MAD_OS_LINUX);
}
/**
* ibmvscsi_reset_crq_queue() - resets a crq after a failure
* @queue: crq_queue to initialize and register
* @hostdata: ibmvscsi_host_data of host
*/
static int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
struct ibmvscsi_host_data *hostdata)
{
int rc = 0;
struct vio_dev *vdev = to_vio_dev(hostdata->dev);
/* Close the CRQ */
do {
if (rc)
msleep(100);
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
/* Clean out the queue */
memset(queue->msgs, 0x00, PAGE_SIZE);
queue->cur = 0;
set_adapter_info(hostdata);
/* And re-open it again */
rc = plpar_hcall_norets(H_REG_CRQ,
vdev->unit_address,
queue->msg_token, PAGE_SIZE);
if (rc == H_CLOSED) {
/* Adapter is good, but other end is not ready */
dev_warn(hostdata->dev, "Partner adapter not ready\n");
} else if (rc != 0) {
dev_warn(hostdata->dev, "couldn't register crq--rc 0x%x\n", rc);
}
return rc;
}
/**
* ibmvscsi_init_crq_queue() - Initializes and registers CRQ with hypervisor
* @queue: crq_queue to initialize and register
* @hostdata: ibmvscsi_host_data of host
* @max_requests: maximum requests (unused)
*
* Allocates a page for messages, maps it for dma, and registers
* the crq with the hypervisor.
* Returns zero on success.
*/
static int ibmvscsi_init_crq_queue(struct crq_queue *queue,
struct ibmvscsi_host_data *hostdata,
int max_requests)
{
int rc;
int retrc;
struct vio_dev *vdev = to_vio_dev(hostdata->dev);
queue->msgs = (struct viosrp_crq *)get_zeroed_page(GFP_KERNEL);
if (!queue->msgs)
goto malloc_failed;
queue->size = PAGE_SIZE / sizeof(*queue->msgs);
queue->msg_token = dma_map_single(hostdata->dev, queue->msgs,
queue->size * sizeof(*queue->msgs),
DMA_BIDIRECTIONAL);
if (dma_mapping_error(hostdata->dev, queue->msg_token))
goto map_failed;
gather_partition_info();
set_adapter_info(hostdata);
retrc = rc = plpar_hcall_norets(H_REG_CRQ,
vdev->unit_address,
queue->msg_token, PAGE_SIZE);
if (rc == H_RESOURCE)
/* maybe kexecing and resource is busy. try a reset */
rc = ibmvscsi_reset_crq_queue(queue,
hostdata);
if (rc == H_CLOSED) {
/* Adapter is good, but other end is not ready */
dev_warn(hostdata->dev, "Partner adapter not ready\n");
retrc = 0;
} else if (rc != 0) {
dev_warn(hostdata->dev, "Error %d opening adapter\n", rc);
goto reg_crq_failed;
}
queue->cur = 0;
spin_lock_init(&queue->lock);
tasklet_init(&hostdata->srp_task, (void *)ibmvscsi_task,
(unsigned long)hostdata);
if (request_irq(vdev->irq,
ibmvscsi_handle_event,
0, "ibmvscsi", (void *)hostdata) != 0) {
dev_err(hostdata->dev, "couldn't register irq 0x%x\n",
vdev->irq);
goto req_irq_failed;
}
rc = vio_enable_interrupts(vdev);
if (rc != 0) {
dev_err(hostdata->dev, "Error %d enabling interrupts!!!\n", rc);
goto req_irq_failed;
}
return retrc;
req_irq_failed:
tasklet_kill(&hostdata->srp_task);
rc = 0;
do {
if (rc)
msleep(100);
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
reg_crq_failed:
dma_unmap_single(hostdata->dev,
queue->msg_token,
queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
map_failed:
free_page((unsigned long)queue->msgs);
malloc_failed:
return -1;
}
/**
* ibmvscsi_reenable_crq_queue() - reenables a crq after
* @queue: crq_queue to initialize and register
* @hostdata: ibmvscsi_host_data of host
*/
static int ibmvscsi_reenable_crq_queue(struct crq_queue *queue,
struct ibmvscsi_host_data *hostdata)
{
int rc = 0;
struct vio_dev *vdev = to_vio_dev(hostdata->dev);
set_adapter_info(hostdata);
/* Re-enable the CRQ */
do {
if (rc)
msleep(100);
rc = plpar_hcall_norets(H_ENABLE_CRQ, vdev->unit_address);
} while ((rc == H_IN_PROGRESS) || (rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
if (rc)
dev_err(hostdata->dev, "Error %d enabling adapter\n", rc);
return rc;
}
/* ------------------------------------------------------------
* Routines for the event pool and event structs
*/
/**
* initialize_event_pool: - Allocates and initializes the event pool for a host
* @pool: event_pool to be initialized
* @size: Number of events in pool
* @hostdata: ibmvscsi_host_data who owns the event pool
*
* Returns zero on success.
*/
static int initialize_event_pool(struct event_pool *pool,
int size, struct ibmvscsi_host_data *hostdata)
{
int i;
pool->size = size;
pool->next = 0;
pool->events = kcalloc(pool->size, sizeof(*pool->events), GFP_KERNEL);
if (!pool->events)
return -ENOMEM;
pool->iu_storage =
dma_alloc_coherent(hostdata->dev,
pool->size * sizeof(*pool->iu_storage),
&pool->iu_token, GFP_KERNEL);
if (!pool->iu_storage) {
kfree(pool->events);
return -ENOMEM;
}
for (i = 0; i < pool->size; ++i) {
struct srp_event_struct *evt = &pool->events[i];
memset(&evt->crq, 0x00, sizeof(evt->crq));
atomic_set(&evt->free, 1);
evt->crq.valid = VIOSRP_CRQ_CMD_RSP;
evt->crq.IU_length = cpu_to_be16(sizeof(*evt->xfer_iu));
evt->crq.IU_data_ptr = cpu_to_be64(pool->iu_token +
sizeof(*evt->xfer_iu) * i);
evt->xfer_iu = pool->iu_storage + i;
evt->hostdata = hostdata;
evt->ext_list = NULL;
evt->ext_list_token = 0;
}
return 0;
}
/**
* release_event_pool() - Frees memory of an event pool of a host
* @pool: event_pool to be released
* @hostdata: ibmvscsi_host_data who owns the even pool
*
* Returns zero on success.
*/
static void release_event_pool(struct event_pool *pool,
struct ibmvscsi_host_data *hostdata)
{
int i, in_use = 0;
for (i = 0; i < pool->size; ++i) {
if (atomic_read(&pool->events[i].free) != 1)
++in_use;
if (pool->events[i].ext_list) {
dma_free_coherent(hostdata->dev,
SG_ALL * sizeof(struct srp_direct_buf),
pool->events[i].ext_list,
pool->events[i].ext_list_token);
}
}
if (in_use)
dev_warn(hostdata->dev, "releasing event pool with %d "
"events still in use?\n", in_use);
kfree(pool->events);
dma_free_coherent(hostdata->dev,
pool->size * sizeof(*pool->iu_storage),
pool->iu_storage, pool->iu_token);
}
/**
* valid_event_struct: - Determines if event is valid.
* @pool: event_pool that contains the event
* @evt: srp_event_struct to be checked for validity
*
* Returns zero if event is invalid, one otherwise.
*/
static int valid_event_struct(struct event_pool *pool,
struct srp_event_struct *evt)
{
int index = evt - pool->events;
if (index < 0 || index >= pool->size) /* outside of bounds */
return 0;
if (evt != pool->events + index) /* unaligned */
return 0;
return 1;
}
/**
* free_event_struct() - Changes status of event to "free"
* @pool: event_pool that contains the event
* @evt: srp_event_struct to be modified
*/
static void free_event_struct(struct event_pool *pool,
struct srp_event_struct *evt)
{
if (!valid_event_struct(pool, evt)) {
dev_err(evt->hostdata->dev, "Freeing invalid event_struct %p "
"(not in pool %p)\n", evt, pool->events);
return;
}
if (atomic_inc_return(&evt->free) != 1) {
dev_err(evt->hostdata->dev, "Freeing event_struct %p "
"which is not in use!\n", evt);
return;
}
}
/**
* get_event_struct() - Gets the next free event in pool
* @pool: event_pool that contains the events to be searched
*
* Returns the next event in "free" state, and NULL if none are free.
* Note that no synchronization is done here, we assume the host_lock
* will syncrhonze things.
*/
static struct srp_event_struct *get_event_struct(struct event_pool *pool)
{
int i;
int poolsize = pool->size;
int offset = pool->next;
for (i = 0; i < poolsize; i++) {
offset = (offset + 1) % poolsize;
if (!atomic_dec_if_positive(&pool->events[offset].free)) {
pool->next = offset;
return &pool->events[offset];
}
}
printk(KERN_ERR "ibmvscsi: found no event struct in pool!\n");
return NULL;
}
/**
* init_event_struct: Initialize fields in an event struct that are always
* required.
* @evt_struct: The event
* @done: Routine to call when the event is responded to
* @format: SRP or MAD format
* @timeout: timeout value set in the CRQ
*/
static void init_event_struct(struct srp_event_struct *evt_struct,
void (*done) (struct srp_event_struct *),
u8 format,
int timeout)
{
evt_struct->cmnd = NULL;
evt_struct->cmnd_done = NULL;
evt_struct->sync_srp = NULL;
evt_struct->crq.format = format;
evt_struct->crq.timeout = cpu_to_be16(timeout);
evt_struct->done = done;
}
/* ------------------------------------------------------------
* Routines for receiving SCSI responses from the hosting partition
*/
/*
* set_srp_direction: Set the fields in the srp related to data
* direction and number of buffers based on the direction in
* the scsi_cmnd and the number of buffers
*/
static void set_srp_direction(struct scsi_cmnd *cmd,
struct srp_cmd *srp_cmd,
int numbuf)
{
u8 fmt;
if (numbuf == 0)
return;
if (numbuf == 1)
fmt = SRP_DATA_DESC_DIRECT;
else {
fmt = SRP_DATA_DESC_INDIRECT;
numbuf = min(numbuf, MAX_INDIRECT_BUFS);
if (cmd->sc_data_direction == DMA_TO_DEVICE)
srp_cmd->data_out_desc_cnt = numbuf;
else
srp_cmd->data_in_desc_cnt = numbuf;
}
if (cmd->sc_data_direction == DMA_TO_DEVICE)
srp_cmd->buf_fmt = fmt << 4;
else
srp_cmd->buf_fmt = fmt;
}
/**
* unmap_cmd_data: - Unmap data pointed in srp_cmd based on the format
* @cmd: srp_cmd whose additional_data member will be unmapped
* @evt_struct: the event
* @dev: device for which the memory is mapped
*/
static void unmap_cmd_data(struct srp_cmd *cmd,
struct srp_event_struct *evt_struct,
struct device *dev)
{
u8 out_fmt, in_fmt;
out_fmt = cmd->buf_fmt >> 4;
in_fmt = cmd->buf_fmt & ((1U << 4) - 1);
if (out_fmt == SRP_NO_DATA_DESC && in_fmt == SRP_NO_DATA_DESC)
return;
if (evt_struct->cmnd)
scsi_dma_unmap(evt_struct->cmnd);
}
static int map_sg_list(struct scsi_cmnd *cmd, int nseg,
struct srp_direct_buf *md)
{
int i;
struct scatterlist *sg;
u64 total_length = 0;
scsi_for_each_sg(cmd, sg, nseg, i) {
struct srp_direct_buf *descr = md + i;
descr->va = cpu_to_be64(sg_dma_address(sg));
descr->len = cpu_to_be32(sg_dma_len(sg));
descr->key = 0;
total_length += sg_dma_len(sg);
}
return total_length;
}
/**
* map_sg_data: - Maps dma for a scatterlist and initializes descriptor fields
* @cmd: struct scsi_cmnd with the scatterlist
* @evt_struct: struct srp_event_struct to map
* @srp_cmd: srp_cmd that contains the memory descriptor
* @dev: device for which to map dma memory
*
* Called by map_data_for_srp_cmd() when building srp cmd from scsi cmd.
* Returns 1 on success.
*/
static int map_sg_data(struct scsi_cmnd *cmd,
struct srp_event_struct *evt_struct,
struct srp_cmd *srp_cmd, struct device *dev)
{
int sg_mapped;
u64 total_length = 0;
struct srp_direct_buf *data =
(struct srp_direct_buf *) srp_cmd->add_data;
struct srp_indirect_buf *indirect =
(struct srp_indirect_buf *) data;
sg_mapped = scsi_dma_map(cmd);
if (!sg_mapped)
return 1;
else if (sg_mapped < 0)
return 0;
set_srp_direction(cmd, srp_cmd, sg_mapped);
/* special case; we can use a single direct descriptor */
if (sg_mapped == 1) {
map_sg_list(cmd, sg_mapped, data);
return 1;
}
indirect->table_desc.va = 0;
indirect->table_desc.len = cpu_to_be32(sg_mapped *
sizeof(struct srp_direct_buf));
indirect->table_desc.key = 0;
if (sg_mapped <= MAX_INDIRECT_BUFS) {
total_length = map_sg_list(cmd, sg_mapped,
&indirect->desc_list[0]);
indirect->len = cpu_to_be32(total_length);
return 1;
}
/* get indirect table */
if (!evt_struct->ext_list) {
evt_struct->ext_list = dma_alloc_coherent(dev,
SG_ALL * sizeof(struct srp_direct_buf),
&evt_struct->ext_list_token, 0);
if (!evt_struct->ext_list) {
if (!firmware_has_feature(FW_FEATURE_CMO))
sdev_printk(KERN_ERR, cmd->device,
"Can't allocate memory "
"for indirect table\n");
scsi_dma_unmap(cmd);
return 0;
}
}
total_length = map_sg_list(cmd, sg_mapped, evt_struct->ext_list);
indirect->len = cpu_to_be32(total_length);
indirect->table_desc.va = cpu_to_be64(evt_struct->ext_list_token);
indirect->table_desc.len = cpu_to_be32(sg_mapped *
sizeof(indirect->desc_list[0]));
memcpy(indirect->desc_list, evt_struct->ext_list,
MAX_INDIRECT_BUFS * sizeof(struct srp_direct_buf));
return 1;
}
/**
* map_data_for_srp_cmd: - Calls functions to map data for srp cmds
* @cmd: struct scsi_cmnd with the memory to be mapped
* @evt_struct: struct srp_event_struct to map
* @srp_cmd: srp_cmd that contains the memory descriptor
* @dev: dma device for which to map dma memory
*
* Called by scsi_cmd_to_srp_cmd() when converting scsi cmds to srp cmds
* Returns 1 on success.
*/
static int map_data_for_srp_cmd(struct scsi_cmnd *cmd,
struct srp_event_struct *evt_struct,
struct srp_cmd *srp_cmd, struct device *dev)
{
switch (cmd->sc_data_direction) {
case DMA_FROM_DEVICE:
case DMA_TO_DEVICE:
break;
case DMA_NONE:
return 1;
case DMA_BIDIRECTIONAL:
sdev_printk(KERN_ERR, cmd->device,
"Can't map DMA_BIDIRECTIONAL to read/write\n");
return 0;
default:
sdev_printk(KERN_ERR, cmd->device,
"Unknown data direction 0x%02x; can't map!\n",
cmd->sc_data_direction);
return 0;
}
return map_sg_data(cmd, evt_struct, srp_cmd, dev);
}
/**
* purge_requests: Our virtual adapter just shut down. purge any sent requests
* @hostdata: the adapter
* @error_code: error code to return as the 'result'
*/
static void purge_requests(struct ibmvscsi_host_data *hostdata, int error_code)
{
struct srp_event_struct *evt;
unsigned long flags;
spin_lock_irqsave(hostdata->host->host_lock, flags);
while (!list_empty(&hostdata->sent)) {
evt = list_first_entry(&hostdata->sent, struct srp_event_struct, list);
list_del(&evt->list);
del_timer(&evt->timer);
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
if (evt->cmnd) {
evt->cmnd->result = (error_code << 16);
unmap_cmd_data(&evt->iu.srp.cmd, evt,
evt->hostdata->dev);
if (evt->cmnd_done)
evt->cmnd_done(evt->cmnd);
} else if (evt->done && evt->crq.format != VIOSRP_MAD_FORMAT &&
evt->iu.srp.login_req.opcode != SRP_LOGIN_REQ)
evt->done(evt);
free_event_struct(&evt->hostdata->pool, evt);
spin_lock_irqsave(hostdata->host->host_lock, flags);
}
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
}
/**
* ibmvscsi_set_request_limit - Set the adapter request_limit in response to
* an adapter failure, reset, or SRP Login. Done under host lock to prevent
* race with SCSI command submission.
* @hostdata: adapter to adjust
* @limit: new request limit
*/
static void ibmvscsi_set_request_limit(struct ibmvscsi_host_data *hostdata, int limit)
{
unsigned long flags;
spin_lock_irqsave(hostdata->host->host_lock, flags);
atomic_set(&hostdata->request_limit, limit);
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
}
/**
* ibmvscsi_reset_host - Reset the connection to the server
* @hostdata: struct ibmvscsi_host_data to reset
*/
static void ibmvscsi_reset_host(struct ibmvscsi_host_data *hostdata)
{
scsi_block_requests(hostdata->host);
ibmvscsi_set_request_limit(hostdata, 0);
purge_requests(hostdata, DID_ERROR);
hostdata->action = IBMVSCSI_HOST_ACTION_RESET;
wake_up(&hostdata->work_wait_q);
}
/**
* ibmvscsi_timeout - Internal command timeout handler
* @t: struct srp_event_struct that timed out
*
* Called when an internally generated command times out
*/
static void ibmvscsi_timeout(struct timer_list *t)
{
struct srp_event_struct *evt_struct = from_timer(evt_struct, t, timer);
struct ibmvscsi_host_data *hostdata = evt_struct->hostdata;
dev_err(hostdata->dev, "Command timed out (%x). Resetting connection\n",
evt_struct->iu.srp.cmd.opcode);
ibmvscsi_reset_host(hostdata);
}
/* ------------------------------------------------------------
* Routines for sending and receiving SRPs
*/
/**
* ibmvscsi_send_srp_event: - Transforms event to u64 array and calls send_crq()
* @evt_struct: evt_struct to be sent
* @hostdata: ibmvscsi_host_data of host
* @timeout: timeout in seconds - 0 means do not time command
*
* Returns the value returned from ibmvscsi_send_crq(). (Zero for success)
* Note that this routine assumes that host_lock is held for synchronization
*/
static int ibmvscsi_send_srp_event(struct srp_event_struct *evt_struct,
struct ibmvscsi_host_data *hostdata,
unsigned long timeout)
{
__be64 *crq_as_u64 = (__be64 *)&evt_struct->crq;
int request_status = 0;
int rc;
int srp_req = 0;
/* If we have exhausted our request limit, just fail this request,
* unless it is for a reset or abort.
* Note that there are rare cases involving driver generated requests
* (such as task management requests) that the mid layer may think we
* can handle more requests (can_queue) when we actually can't
*/
if (evt_struct->crq.format == VIOSRP_SRP_FORMAT) {
srp_req = 1;
request_status =
atomic_dec_if_positive(&hostdata->request_limit);
/* If request limit was -1 when we started, it is now even
* less than that
*/
if (request_status < -1)
goto send_error;
/* Otherwise, we may have run out of requests. */
/* If request limit was 0 when we started the adapter is in the
* process of performing a login with the server adapter, or
* we may have run out of requests.
*/
else if (request_status == -1 &&
evt_struct->iu.srp.login_req.opcode != SRP_LOGIN_REQ)
goto send_busy;
/* Abort and reset calls should make it through.
* Nothing except abort and reset should use the last two
* slots unless we had two or less to begin with.
*/
else if (request_status < 2 &&
evt_struct->iu.srp.cmd.opcode != SRP_TSK_MGMT) {
/* In the case that we have less than two requests
* available, check the server limit as a combination
* of the request limit and the number of requests
* in-flight (the size of the send list). If the
* server limit is greater than 2, return busy so
* that the last two are reserved for reset and abort.
*/
int server_limit = request_status;
struct srp_event_struct *tmp_evt;
list_for_each_entry(tmp_evt, &hostdata->sent, list) {
server_limit++;
}
if (server_limit > 2)
goto send_busy;
}
}
/* Copy the IU into the transfer area */
*evt_struct->xfer_iu = evt_struct->iu;
evt_struct->xfer_iu->srp.rsp.tag = (u64)evt_struct;
/* Add this to the sent list. We need to do this
* before we actually send
* in case it comes back REALLY fast
*/
list_add_tail(&evt_struct->list, &hostdata->sent);
timer_setup(&evt_struct->timer, ibmvscsi_timeout, 0);
if (timeout) {
evt_struct->timer.expires = jiffies + (timeout * HZ);
add_timer(&evt_struct->timer);
}
rc = ibmvscsi_send_crq(hostdata, be64_to_cpu(crq_as_u64[0]),
be64_to_cpu(crq_as_u64[1]));
if (rc != 0) {
list_del(&evt_struct->list);
del_timer(&evt_struct->timer);
/* If send_crq returns H_CLOSED, return SCSI_MLQUEUE_HOST_BUSY.
* Firmware will send a CRQ with a transport event (0xFF) to
* tell this client what has happened to the transport. This
* will be handled in ibmvscsi_handle_crq()
*/
if (rc == H_CLOSED) {
dev_warn(hostdata->dev, "send warning. "
"Receive queue closed, will retry.\n");
goto send_busy;
}
dev_err(hostdata->dev, "send error %d\n", rc);
if (srp_req)
atomic_inc(&hostdata->request_limit);
goto send_error;
}
return 0;
send_busy:
unmap_cmd_data(&evt_struct->iu.srp.cmd, evt_struct, hostdata->dev);
free_event_struct(&hostdata->pool, evt_struct);
if (srp_req && request_status != -1)
atomic_inc(&hostdata->request_limit);
return SCSI_MLQUEUE_HOST_BUSY;
send_error:
unmap_cmd_data(&evt_struct->iu.srp.cmd, evt_struct, hostdata->dev);
if (evt_struct->cmnd != NULL) {
evt_struct->cmnd->result = DID_ERROR << 16;
evt_struct->cmnd_done(evt_struct->cmnd);
} else if (evt_struct->done)
evt_struct->done(evt_struct);
free_event_struct(&hostdata->pool, evt_struct);
return 0;
}
/**
* handle_cmd_rsp: - Handle responses from commands
* @evt_struct: srp_event_struct to be handled
*
* Used as a callback by when sending scsi cmds.
* Gets called by ibmvscsi_handle_crq()
*/
static void handle_cmd_rsp(struct srp_event_struct *evt_struct)
{
struct srp_rsp *rsp = &evt_struct->xfer_iu->srp.rsp;
struct scsi_cmnd *cmnd = evt_struct->cmnd;
if (unlikely(rsp->opcode != SRP_RSP)) {
if (printk_ratelimit())
dev_warn(evt_struct->hostdata->dev,
"bad SRP RSP type %#02x\n", rsp->opcode);
}
if (cmnd) {
cmnd->result |= rsp->status;
if (scsi_status_is_check_condition(cmnd->result))
memcpy(cmnd->sense_buffer,
rsp->data,
be32_to_cpu(rsp->sense_data_len));
unmap_cmd_data(&evt_struct->iu.srp.cmd,
evt_struct,
evt_struct->hostdata->dev);
if (rsp->flags & SRP_RSP_FLAG_DOOVER)
scsi_set_resid(cmnd,
be32_to_cpu(rsp->data_out_res_cnt));
else if (rsp->flags & SRP_RSP_FLAG_DIOVER)
scsi_set_resid(cmnd, be32_to_cpu(rsp->data_in_res_cnt));
}
if (evt_struct->cmnd_done)
evt_struct->cmnd_done(cmnd);
}
/**
* lun_from_dev: - Returns the lun of the scsi device
* @dev: struct scsi_device
*
*/
static inline u16 lun_from_dev(struct scsi_device *dev)
{
return (0x2 << 14) | (dev->id << 8) | (dev->channel << 5) | dev->lun;
}
/**
* ibmvscsi_queuecommand_lck() - The queuecommand function of the scsi template
* @cmnd: struct scsi_cmnd to be executed
* @done: Callback function to be called when cmd is completed
*/
static int ibmvscsi_queuecommand_lck(struct scsi_cmnd *cmnd)
{
void (*done)(struct scsi_cmnd *) = scsi_done;
struct srp_cmd *srp_cmd;
struct srp_event_struct *evt_struct;
struct srp_indirect_buf *indirect;
struct ibmvscsi_host_data *hostdata = shost_priv(cmnd->device->host);
u16 lun = lun_from_dev(cmnd->device);
u8 out_fmt, in_fmt;
cmnd->result = (DID_OK << 16);
evt_struct = get_event_struct(&hostdata->pool);
if (!evt_struct)
return SCSI_MLQUEUE_HOST_BUSY;
/* Set up the actual SRP IU */
BUILD_BUG_ON(sizeof(evt_struct->iu.srp) != SRP_MAX_IU_LEN);
memset(&evt_struct->iu.srp, 0x00, sizeof(evt_struct->iu.srp));
srp_cmd = &evt_struct->iu.srp.cmd;
srp_cmd->opcode = SRP_CMD;
memcpy(srp_cmd->cdb, cmnd->cmnd, sizeof(srp_cmd->cdb));
int_to_scsilun(lun, &srp_cmd->lun);
if (!map_data_for_srp_cmd(cmnd, evt_struct, srp_cmd, hostdata->dev)) {
if (!firmware_has_feature(FW_FEATURE_CMO))
sdev_printk(KERN_ERR, cmnd->device,
"couldn't convert cmd to srp_cmd\n");
free_event_struct(&hostdata->pool, evt_struct);
return SCSI_MLQUEUE_HOST_BUSY;
}
init_event_struct(evt_struct,
handle_cmd_rsp,
VIOSRP_SRP_FORMAT,
scsi_cmd_to_rq(cmnd)->timeout / HZ);
evt_struct->cmnd = cmnd;
evt_struct->cmnd_done = done;
/* Fix up dma address of the buffer itself */
indirect = (struct srp_indirect_buf *) srp_cmd->add_data;
out_fmt = srp_cmd->buf_fmt >> 4;
in_fmt = srp_cmd->buf_fmt & ((1U << 4) - 1);
if ((in_fmt == SRP_DATA_DESC_INDIRECT ||
out_fmt == SRP_DATA_DESC_INDIRECT) &&
indirect->table_desc.va == 0) {
indirect->table_desc.va =
cpu_to_be64(be64_to_cpu(evt_struct->crq.IU_data_ptr) +
offsetof(struct srp_cmd, add_data) +
offsetof(struct srp_indirect_buf, desc_list));
}
return ibmvscsi_send_srp_event(evt_struct, hostdata, 0);
}
static DEF_SCSI_QCMD(ibmvscsi_queuecommand)
/* ------------------------------------------------------------
* Routines for driver initialization
*/
/**
* map_persist_bufs: - Pre-map persistent data for adapter logins
* @hostdata: ibmvscsi_host_data of host
*
* Map the capabilities and adapter info DMA buffers to avoid runtime failures.
* Return 1 on error, 0 on success.
*/
static int map_persist_bufs(struct ibmvscsi_host_data *hostdata)
{
hostdata->caps_addr = dma_map_single(hostdata->dev, &hostdata->caps,
sizeof(hostdata->caps), DMA_BIDIRECTIONAL);
if (dma_mapping_error(hostdata->dev, hostdata->caps_addr)) {
dev_err(hostdata->dev, "Unable to map capabilities buffer!\n");
return 1;
}
hostdata->adapter_info_addr = dma_map_single(hostdata->dev,
&hostdata->madapter_info,
sizeof(hostdata->madapter_info),
DMA_BIDIRECTIONAL);
if (dma_mapping_error(hostdata->dev, hostdata->adapter_info_addr)) {
dev_err(hostdata->dev, "Unable to map adapter info buffer!\n");
dma_unmap_single(hostdata->dev, hostdata->caps_addr,
sizeof(hostdata->caps), DMA_BIDIRECTIONAL);
return 1;
}
return 0;
}
/**
* unmap_persist_bufs: - Unmap persistent data needed for adapter logins
* @hostdata: ibmvscsi_host_data of host
*
* Unmap the capabilities and adapter info DMA buffers
*/
static void unmap_persist_bufs(struct ibmvscsi_host_data *hostdata)
{
dma_unmap_single(hostdata->dev, hostdata->caps_addr,
sizeof(hostdata->caps), DMA_BIDIRECTIONAL);
dma_unmap_single(hostdata->dev, hostdata->adapter_info_addr,
sizeof(hostdata->madapter_info), DMA_BIDIRECTIONAL);
}
/**
* login_rsp: - Handle response to SRP login request
* @evt_struct: srp_event_struct with the response
*
* Used as a "done" callback by when sending srp_login. Gets called
* by ibmvscsi_handle_crq()
*/
static void login_rsp(struct srp_event_struct *evt_struct)
{
struct ibmvscsi_host_data *hostdata = evt_struct->hostdata;
switch (evt_struct->xfer_iu->srp.login_rsp.opcode) {
case SRP_LOGIN_RSP: /* it worked! */
break;
case SRP_LOGIN_REJ: /* refused! */
dev_info(hostdata->dev, "SRP_LOGIN_REJ reason %u\n",
evt_struct->xfer_iu->srp.login_rej.reason);
/* Login failed. */
ibmvscsi_set_request_limit(hostdata, -1);
return;
default:
dev_err(hostdata->dev, "Invalid login response typecode 0x%02x!\n",
evt_struct->xfer_iu->srp.login_rsp.opcode);
/* Login failed. */
ibmvscsi_set_request_limit(hostdata, -1);
return;
}
dev_info(hostdata->dev, "SRP_LOGIN succeeded\n");
hostdata->client_migrated = 0;
/* Now we know what the real request-limit is.
* This value is set rather than added to request_limit because
* request_limit could have been set to -1 by this client.
*/
ibmvscsi_set_request_limit(hostdata,
be32_to_cpu(evt_struct->xfer_iu->srp.login_rsp.req_lim_delta));
/* If we had any pending I/Os, kick them */
hostdata->action = IBMVSCSI_HOST_ACTION_UNBLOCK;
wake_up(&hostdata->work_wait_q);
}
/**
* send_srp_login: - Sends the srp login
* @hostdata: ibmvscsi_host_data of host
*
* Returns zero if successful.
*/
static int send_srp_login(struct ibmvscsi_host_data *hostdata)
{
int rc;
unsigned long flags;
struct srp_login_req *login;
struct srp_event_struct *evt_struct = get_event_struct(&hostdata->pool);
BUG_ON(!evt_struct);
init_event_struct(evt_struct, login_rsp,
VIOSRP_SRP_FORMAT, login_timeout);
login = &evt_struct->iu.srp.login_req;
memset(login, 0, sizeof(*login));
login->opcode = SRP_LOGIN_REQ;
login->req_it_iu_len = cpu_to_be32(sizeof(union srp_iu));
login->req_buf_fmt = cpu_to_be16(SRP_BUF_FORMAT_DIRECT |
SRP_BUF_FORMAT_INDIRECT);
/* Start out with a request limit of 0, since this is negotiated in
* the login request we are just sending and login requests always
* get sent by the driver regardless of request_limit.
*/
ibmvscsi_set_request_limit(hostdata, 0);
spin_lock_irqsave(hostdata->host->host_lock, flags);
rc = ibmvscsi_send_srp_event(evt_struct, hostdata, login_timeout * 2);
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
dev_info(hostdata->dev, "sent SRP login\n");
return rc;
};
/**
* capabilities_rsp: - Handle response to MAD adapter capabilities request
* @evt_struct: srp_event_struct with the response
*
* Used as a "done" callback by when sending adapter_info.
*/
static void capabilities_rsp(struct srp_event_struct *evt_struct)
{
struct ibmvscsi_host_data *hostdata = evt_struct->hostdata;
if (evt_struct->xfer_iu->mad.capabilities.common.status) {
dev_err(hostdata->dev, "error 0x%X getting capabilities info\n",
evt_struct->xfer_iu->mad.capabilities.common.status);
} else {
if (hostdata->caps.migration.common.server_support !=
cpu_to_be16(SERVER_SUPPORTS_CAP))
dev_info(hostdata->dev, "Partition migration not supported\n");
if (client_reserve) {
if (hostdata->caps.reserve.common.server_support ==
cpu_to_be16(SERVER_SUPPORTS_CAP))
dev_info(hostdata->dev, "Client reserve enabled\n");
else
dev_info(hostdata->dev, "Client reserve not supported\n");
}
}
send_srp_login(hostdata);
}
/**
* send_mad_capabilities: - Sends the mad capabilities request
* and stores the result so it can be retrieved with
* @hostdata: ibmvscsi_host_data of host
*/
static void send_mad_capabilities(struct ibmvscsi_host_data *hostdata)
{
struct viosrp_capabilities *req;
struct srp_event_struct *evt_struct;
unsigned long flags;
struct device_node *of_node = hostdata->dev->of_node;
const char *location;
evt_struct = get_event_struct(&hostdata->pool);
BUG_ON(!evt_struct);
init_event_struct(evt_struct, capabilities_rsp,
VIOSRP_MAD_FORMAT, info_timeout);
req = &evt_struct->iu.mad.capabilities;
memset(req, 0, sizeof(*req));
hostdata->caps.flags = cpu_to_be32(CAP_LIST_SUPPORTED);
if (hostdata->client_migrated)
hostdata->caps.flags |= cpu_to_be32(CLIENT_MIGRATED);
strscpy(hostdata->caps.name, dev_name(&hostdata->host->shost_gendev),
sizeof(hostdata->caps.name));
location = of_get_property(of_node, "ibm,loc-code", NULL);
location = location ? location : dev_name(hostdata->dev);
strscpy(hostdata->caps.loc, location, sizeof(hostdata->caps.loc));
req->common.type = cpu_to_be32(VIOSRP_CAPABILITIES_TYPE);
req->buffer = cpu_to_be64(hostdata->caps_addr);
hostdata->caps.migration.common.cap_type =
cpu_to_be32(MIGRATION_CAPABILITIES);
hostdata->caps.migration.common.length =
cpu_to_be16(sizeof(hostdata->caps.migration));
hostdata->caps.migration.common.server_support =
cpu_to_be16(SERVER_SUPPORTS_CAP);
hostdata->caps.migration.ecl = cpu_to_be32(1);
if (client_reserve) {
hostdata->caps.reserve.common.cap_type =
cpu_to_be32(RESERVATION_CAPABILITIES);
hostdata->caps.reserve.common.length =
cpu_to_be16(sizeof(hostdata->caps.reserve));
hostdata->caps.reserve.common.server_support =
cpu_to_be16(SERVER_SUPPORTS_CAP);
hostdata->caps.reserve.type =
cpu_to_be32(CLIENT_RESERVE_SCSI_2);
req->common.length =
cpu_to_be16(sizeof(hostdata->caps));
} else
req->common.length = cpu_to_be16(sizeof(hostdata->caps) -
sizeof(hostdata->caps.reserve));
spin_lock_irqsave(hostdata->host->host_lock, flags);
if (ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2))
dev_err(hostdata->dev, "couldn't send CAPABILITIES_REQ!\n");
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
};
/**
* fast_fail_rsp: - Handle response to MAD enable fast fail
* @evt_struct: srp_event_struct with the response
*
* Used as a "done" callback by when sending enable fast fail. Gets called
* by ibmvscsi_handle_crq()
*/
static void fast_fail_rsp(struct srp_event_struct *evt_struct)
{
struct ibmvscsi_host_data *hostdata = evt_struct->hostdata;
u16 status = be16_to_cpu(evt_struct->xfer_iu->mad.fast_fail.common.status);
if (status == VIOSRP_MAD_NOT_SUPPORTED)
dev_err(hostdata->dev, "fast_fail not supported in server\n");
else if (status == VIOSRP_MAD_FAILED)
dev_err(hostdata->dev, "fast_fail request failed\n");
else if (status != VIOSRP_MAD_SUCCESS)
dev_err(hostdata->dev, "error 0x%X enabling fast_fail\n", status);
send_mad_capabilities(hostdata);
}
/**
* enable_fast_fail() - Start host initialization
* @hostdata: ibmvscsi_host_data of host
*
* Returns zero if successful.
*/
static int enable_fast_fail(struct ibmvscsi_host_data *hostdata)
{
int rc;
unsigned long flags;
struct viosrp_fast_fail *fast_fail_mad;
struct srp_event_struct *evt_struct;
if (!fast_fail) {
send_mad_capabilities(hostdata);
return 0;
}
evt_struct = get_event_struct(&hostdata->pool);
BUG_ON(!evt_struct);
init_event_struct(evt_struct, fast_fail_rsp, VIOSRP_MAD_FORMAT, info_timeout);
fast_fail_mad = &evt_struct->iu.mad.fast_fail;
memset(fast_fail_mad, 0, sizeof(*fast_fail_mad));
fast_fail_mad->common.type = cpu_to_be32(VIOSRP_ENABLE_FAST_FAIL);
fast_fail_mad->common.length = cpu_to_be16(sizeof(*fast_fail_mad));
spin_lock_irqsave(hostdata->host->host_lock, flags);
rc = ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2);
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
return rc;
}
/**
* adapter_info_rsp: - Handle response to MAD adapter info request
* @evt_struct: srp_event_struct with the response
*
* Used as a "done" callback by when sending adapter_info. Gets called
* by ibmvscsi_handle_crq()
*/
static void adapter_info_rsp(struct srp_event_struct *evt_struct)
{
struct ibmvscsi_host_data *hostdata = evt_struct->hostdata;
if (evt_struct->xfer_iu->mad.adapter_info.common.status) {
dev_err(hostdata->dev, "error %d getting adapter info\n",
evt_struct->xfer_iu->mad.adapter_info.common.status);
} else {
dev_info(hostdata->dev, "host srp version: %s, "
"host partition %s (%d), OS %d, max io %u\n",
hostdata->madapter_info.srp_version,
hostdata->madapter_info.partition_name,
be32_to_cpu(hostdata->madapter_info.partition_number),
be32_to_cpu(hostdata->madapter_info.os_type),
be32_to_cpu(hostdata->madapter_info.port_max_txu[0]));
if (hostdata->madapter_info.port_max_txu[0])
hostdata->host->max_sectors =
be32_to_cpu(hostdata->madapter_info.port_max_txu[0]) >> 9;
if (be32_to_cpu(hostdata->madapter_info.os_type) == SRP_MAD_OS_AIX &&
strcmp(hostdata->madapter_info.srp_version, "1.6a") <= 0) {
dev_err(hostdata->dev, "host (Ver. %s) doesn't support large transfers\n",
hostdata->madapter_info.srp_version);
dev_err(hostdata->dev, "limiting scatterlists to %d\n",
MAX_INDIRECT_BUFS);
hostdata->host->sg_tablesize = MAX_INDIRECT_BUFS;
}
if (be32_to_cpu(hostdata->madapter_info.os_type) == SRP_MAD_OS_AIX) {
enable_fast_fail(hostdata);
return;
}
}
send_srp_login(hostdata);
}
/**
* send_mad_adapter_info: - Sends the mad adapter info request
* and stores the result so it can be retrieved with
* sysfs. We COULD consider causing a failure if the
* returned SRP version doesn't match ours.
* @hostdata: ibmvscsi_host_data of host
*
* Returns zero if successful.
*/
static void send_mad_adapter_info(struct ibmvscsi_host_data *hostdata)
{
struct viosrp_adapter_info *req;
struct srp_event_struct *evt_struct;
unsigned long flags;
evt_struct = get_event_struct(&hostdata->pool);
BUG_ON(!evt_struct);
init_event_struct(evt_struct,
adapter_info_rsp,
VIOSRP_MAD_FORMAT,
info_timeout);
req = &evt_struct->iu.mad.adapter_info;
memset(req, 0x00, sizeof(*req));
req->common.type = cpu_to_be32(VIOSRP_ADAPTER_INFO_TYPE);
req->common.length = cpu_to_be16(sizeof(hostdata->madapter_info));
req->buffer = cpu_to_be64(hostdata->adapter_info_addr);
spin_lock_irqsave(hostdata->host->host_lock, flags);
if (ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2))
dev_err(hostdata->dev, "couldn't send ADAPTER_INFO_REQ!\n");
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
};
/*
* init_adapter() - Start virtual adapter initialization sequence
*/
static void init_adapter(struct ibmvscsi_host_data *hostdata)
{
send_mad_adapter_info(hostdata);
}
/*
* sync_completion: Signal that a synchronous command has completed
* Note that after returning from this call, the evt_struct is freed.
* the caller waiting on this completion shouldn't touch the evt_struct
* again.
*/
static void sync_completion(struct srp_event_struct *evt_struct)
{
/* copy the response back */
if (evt_struct->sync_srp)
*evt_struct->sync_srp = *evt_struct->xfer_iu;
complete(&evt_struct->comp);
}
/*
* ibmvscsi_eh_abort_handler: Abort a command...from scsi host template
* send this over to the server and wait synchronously for the response
*/
static int ibmvscsi_eh_abort_handler(struct scsi_cmnd *cmd)
{
struct ibmvscsi_host_data *hostdata = shost_priv(cmd->device->host);
struct srp_tsk_mgmt *tsk_mgmt;
struct srp_event_struct *evt;
struct srp_event_struct *tmp_evt, *found_evt;
union viosrp_iu srp_rsp;
int rsp_rc;
unsigned long flags;
u16 lun = lun_from_dev(cmd->device);
unsigned long wait_switch = 0;
/* First, find this command in our sent list so we can figure
* out the correct tag
*/
spin_lock_irqsave(hostdata->host->host_lock, flags);
wait_switch = jiffies + (init_timeout * HZ);
do {
found_evt = NULL;
list_for_each_entry(tmp_evt, &hostdata->sent, list) {
if (tmp_evt->cmnd == cmd) {
found_evt = tmp_evt;
break;
}
}
if (!found_evt) {
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
return SUCCESS;
}
evt = get_event_struct(&hostdata->pool);
if (evt == NULL) {
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
sdev_printk(KERN_ERR, cmd->device,
"failed to allocate abort event\n");
return FAILED;
}
init_event_struct(evt,
sync_completion,
VIOSRP_SRP_FORMAT,
abort_timeout);
tsk_mgmt = &evt->iu.srp.tsk_mgmt;
/* Set up an abort SRP command */
memset(tsk_mgmt, 0x00, sizeof(*tsk_mgmt));
tsk_mgmt->opcode = SRP_TSK_MGMT;
int_to_scsilun(lun, &tsk_mgmt->lun);
tsk_mgmt->tsk_mgmt_func = SRP_TSK_ABORT_TASK;
tsk_mgmt->task_tag = (u64) found_evt;
evt->sync_srp = &srp_rsp;
init_completion(&evt->comp);
rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, abort_timeout * 2);
if (rsp_rc != SCSI_MLQUEUE_HOST_BUSY)
break;
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
msleep(10);
spin_lock_irqsave(hostdata->host->host_lock, flags);
} while (time_before(jiffies, wait_switch));
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
if (rsp_rc != 0) {
sdev_printk(KERN_ERR, cmd->device,
"failed to send abort() event. rc=%d\n", rsp_rc);
return FAILED;
}
sdev_printk(KERN_INFO, cmd->device,
"aborting command. lun 0x%llx, tag 0x%llx\n",
(((u64) lun) << 48), (u64) found_evt);
wait_for_completion(&evt->comp);
/* make sure we got a good response */
if (unlikely(srp_rsp.srp.rsp.opcode != SRP_RSP)) {
if (printk_ratelimit())
sdev_printk(KERN_WARNING, cmd->device, "abort bad SRP RSP type %d\n",
srp_rsp.srp.rsp.opcode);
return FAILED;
}
if (srp_rsp.srp.rsp.flags & SRP_RSP_FLAG_RSPVALID)
rsp_rc = *((int *)srp_rsp.srp.rsp.data);
else
rsp_rc = srp_rsp.srp.rsp.status;
if (rsp_rc) {
if (printk_ratelimit())
sdev_printk(KERN_WARNING, cmd->device,
"abort code %d for task tag 0x%llx\n",
rsp_rc, tsk_mgmt->task_tag);
return FAILED;
}
/* Because we dropped the spinlock above, it's possible
* The event is no longer in our list. Make sure it didn't
* complete while we were aborting
*/
spin_lock_irqsave(hostdata->host->host_lock, flags);
found_evt = NULL;
list_for_each_entry(tmp_evt, &hostdata->sent, list) {
if (tmp_evt->cmnd == cmd) {
found_evt = tmp_evt;
break;
}
}
if (found_evt == NULL) {
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
sdev_printk(KERN_INFO, cmd->device, "aborted task tag 0x%llx completed\n",
tsk_mgmt->task_tag);
return SUCCESS;
}
sdev_printk(KERN_INFO, cmd->device, "successfully aborted task tag 0x%llx\n",
tsk_mgmt->task_tag);
cmd->result = (DID_ABORT << 16);
list_del(&found_evt->list);
unmap_cmd_data(&found_evt->iu.srp.cmd, found_evt,
found_evt->hostdata->dev);
free_event_struct(&found_evt->hostdata->pool, found_evt);
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
atomic_inc(&hostdata->request_limit);
return SUCCESS;
}
/*
* ibmvscsi_eh_device_reset_handler: Reset a single LUN...from scsi host
* template send this over to the server and wait synchronously for the
* response
*/
static int ibmvscsi_eh_device_reset_handler(struct scsi_cmnd *cmd)
{
struct ibmvscsi_host_data *hostdata = shost_priv(cmd->device->host);
struct srp_tsk_mgmt *tsk_mgmt;
struct srp_event_struct *evt;
struct srp_event_struct *tmp_evt, *pos;
union viosrp_iu srp_rsp;
int rsp_rc;
unsigned long flags;
u16 lun = lun_from_dev(cmd->device);
unsigned long wait_switch = 0;
spin_lock_irqsave(hostdata->host->host_lock, flags);
wait_switch = jiffies + (init_timeout * HZ);
do {
evt = get_event_struct(&hostdata->pool);
if (evt == NULL) {
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
sdev_printk(KERN_ERR, cmd->device,
"failed to allocate reset event\n");
return FAILED;
}
init_event_struct(evt,
sync_completion,
VIOSRP_SRP_FORMAT,
reset_timeout);
tsk_mgmt = &evt->iu.srp.tsk_mgmt;
/* Set up a lun reset SRP command */
memset(tsk_mgmt, 0x00, sizeof(*tsk_mgmt));
tsk_mgmt->opcode = SRP_TSK_MGMT;
int_to_scsilun(lun, &tsk_mgmt->lun);
tsk_mgmt->tsk_mgmt_func = SRP_TSK_LUN_RESET;
evt->sync_srp = &srp_rsp;
init_completion(&evt->comp);
rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, reset_timeout * 2);
if (rsp_rc != SCSI_MLQUEUE_HOST_BUSY)
break;
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
msleep(10);
spin_lock_irqsave(hostdata->host->host_lock, flags);
} while (time_before(jiffies, wait_switch));
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
if (rsp_rc != 0) {
sdev_printk(KERN_ERR, cmd->device,
"failed to send reset event. rc=%d\n", rsp_rc);
return FAILED;
}
sdev_printk(KERN_INFO, cmd->device, "resetting device. lun 0x%llx\n",
(((u64) lun) << 48));
wait_for_completion(&evt->comp);
/* make sure we got a good response */
if (unlikely(srp_rsp.srp.rsp.opcode != SRP_RSP)) {
if (printk_ratelimit())
sdev_printk(KERN_WARNING, cmd->device, "reset bad SRP RSP type %d\n",
srp_rsp.srp.rsp.opcode);
return FAILED;
}
if (srp_rsp.srp.rsp.flags & SRP_RSP_FLAG_RSPVALID)
rsp_rc = *((int *)srp_rsp.srp.rsp.data);
else
rsp_rc = srp_rsp.srp.rsp.status;
if (rsp_rc) {
if (printk_ratelimit())
sdev_printk(KERN_WARNING, cmd->device,
"reset code %d for task tag 0x%llx\n",
rsp_rc, tsk_mgmt->task_tag);
return FAILED;
}
/* We need to find all commands for this LUN that have not yet been
* responded to, and fail them with DID_RESET
*/
spin_lock_irqsave(hostdata->host->host_lock, flags);
list_for_each_entry_safe(tmp_evt, pos, &hostdata->sent, list) {
if ((tmp_evt->cmnd) && (tmp_evt->cmnd->device == cmd->device)) {
if (tmp_evt->cmnd)
tmp_evt->cmnd->result = (DID_RESET << 16);
list_del(&tmp_evt->list);
unmap_cmd_data(&tmp_evt->iu.srp.cmd, tmp_evt,
tmp_evt->hostdata->dev);
free_event_struct(&tmp_evt->hostdata->pool,
tmp_evt);
atomic_inc(&hostdata->request_limit);
if (tmp_evt->cmnd_done)
tmp_evt->cmnd_done(tmp_evt->cmnd);
else if (tmp_evt->done)
tmp_evt->done(tmp_evt);
}
}
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
return SUCCESS;
}
/**
* ibmvscsi_eh_host_reset_handler - Reset the connection to the server
* @cmd: struct scsi_cmnd having problems
*/
static int ibmvscsi_eh_host_reset_handler(struct scsi_cmnd *cmd)
{
unsigned long wait_switch = 0;
struct ibmvscsi_host_data *hostdata = shost_priv(cmd->device->host);
dev_err(hostdata->dev, "Resetting connection due to error recovery\n");
ibmvscsi_reset_host(hostdata);
for (wait_switch = jiffies + (init_timeout * HZ);
time_before(jiffies, wait_switch) &&
atomic_read(&hostdata->request_limit) < 2;) {
msleep(10);
}
if (atomic_read(&hostdata->request_limit) <= 0)
return FAILED;
return SUCCESS;
}
/**
* ibmvscsi_handle_crq: - Handles and frees received events in the CRQ
* @crq: Command/Response queue
* @hostdata: ibmvscsi_host_data of host
*
*/
static void ibmvscsi_handle_crq(struct viosrp_crq *crq,
struct ibmvscsi_host_data *hostdata)
{
long rc;
unsigned long flags;
/* The hypervisor copies our tag value here so no byteswapping */
struct srp_event_struct *evt_struct =
(__force struct srp_event_struct *)crq->IU_data_ptr;
switch (crq->valid) {
case VIOSRP_CRQ_INIT_RSP: /* initialization */
switch (crq->format) {
case VIOSRP_CRQ_INIT: /* Initialization message */
dev_info(hostdata->dev, "partner initialized\n");
/* Send back a response */
rc = ibmvscsi_send_crq(hostdata, 0xC002000000000000LL, 0);
if (rc == 0) {
/* Now login */
init_adapter(hostdata);
} else {
dev_err(hostdata->dev, "Unable to send init rsp. rc=%ld\n", rc);
}
break;
case VIOSRP_CRQ_INIT_COMPLETE: /* Initialization response */
dev_info(hostdata->dev, "partner initialization complete\n");
/* Now login */
init_adapter(hostdata);
break;
default:
dev_err(hostdata->dev, "unknown crq message type: %d\n", crq->format);
}
return;
case VIOSRP_CRQ_XPORT_EVENT: /* Hypervisor telling us the connection is closed */
scsi_block_requests(hostdata->host);
ibmvscsi_set_request_limit(hostdata, 0);
if (crq->format == 0x06) {
/* We need to re-setup the interpartition connection */
dev_info(hostdata->dev, "Re-enabling adapter!\n");
hostdata->client_migrated = 1;
hostdata->action = IBMVSCSI_HOST_ACTION_REENABLE;
purge_requests(hostdata, DID_REQUEUE);
wake_up(&hostdata->work_wait_q);
} else {
dev_err(hostdata->dev, "Virtual adapter failed rc %d!\n",
crq->format);
ibmvscsi_reset_host(hostdata);
}
return;
case VIOSRP_CRQ_CMD_RSP: /* real payload */
break;
default:
dev_err(hostdata->dev, "got an invalid message type 0x%02x\n",
crq->valid);
return;
}
/* The only kind of payload CRQs we should get are responses to
* things we send. Make sure this response is to something we
* actually sent
*/
if (!valid_event_struct(&hostdata->pool, evt_struct)) {
dev_err(hostdata->dev, "returned correlation_token 0x%p is invalid!\n",
evt_struct);
return;
}
if (atomic_read(&evt_struct->free)) {
dev_err(hostdata->dev, "received duplicate correlation_token 0x%p!\n",
evt_struct);
return;
}
if (crq->format == VIOSRP_SRP_FORMAT)
atomic_add(be32_to_cpu(evt_struct->xfer_iu->srp.rsp.req_lim_delta),
&hostdata->request_limit);
del_timer(&evt_struct->timer);
if ((crq->status != VIOSRP_OK && crq->status != VIOSRP_OK2) && evt_struct->cmnd)
evt_struct->cmnd->result = DID_ERROR << 16;
if (evt_struct->done)
evt_struct->done(evt_struct);
else
dev_err(hostdata->dev, "returned done() is NULL; not running it!\n");
/*
* Lock the host_lock before messing with these structures, since we
* are running in a task context
*/
spin_lock_irqsave(evt_struct->hostdata->host->host_lock, flags);
list_del(&evt_struct->list);
free_event_struct(&evt_struct->hostdata->pool, evt_struct);
spin_unlock_irqrestore(evt_struct->hostdata->host->host_lock, flags);
}
/**
* ibmvscsi_slave_configure: Set the "allow_restart" flag for each disk.
* @sdev: struct scsi_device device to configure
*
* Enable allow_restart for a device if it is a disk. Adjust the
* queue_depth here also as is required by the documentation for
* struct scsi_host_template.
*/
static int ibmvscsi_slave_configure(struct scsi_device *sdev)
{
struct Scsi_Host *shost = sdev->host;
unsigned long lock_flags = 0;
spin_lock_irqsave(shost->host_lock, lock_flags);
if (sdev->type == TYPE_DISK) {
sdev->allow_restart = 1;
blk_queue_rq_timeout(sdev->request_queue, 120 * HZ);
}
spin_unlock_irqrestore(shost->host_lock, lock_flags);
return 0;
}
/**
* ibmvscsi_change_queue_depth - Change the device's queue depth
* @sdev: scsi device struct
* @qdepth: depth to set
*
* Return value:
* actual depth set
**/
static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
if (qdepth > IBMVSCSI_MAX_CMDS_PER_LUN)
qdepth = IBMVSCSI_MAX_CMDS_PER_LUN;
return scsi_change_queue_depth(sdev, qdepth);
}
/* ------------------------------------------------------------
* sysfs attributes
*/
static ssize_t show_host_vhost_loc(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvscsi_host_data *hostdata = shost_priv(shost);
int len;
len = snprintf(buf, sizeof(hostdata->caps.loc), "%s\n",
hostdata->caps.loc);
return len;
}
static struct device_attribute ibmvscsi_host_vhost_loc = {
.attr = {
.name = "vhost_loc",
.mode = S_IRUGO,
},
.show = show_host_vhost_loc,
};
static ssize_t show_host_vhost_name(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvscsi_host_data *hostdata = shost_priv(shost);
int len;
len = snprintf(buf, sizeof(hostdata->caps.name), "%s\n",
hostdata->caps.name);
return len;
}
static struct device_attribute ibmvscsi_host_vhost_name = {
.attr = {
.name = "vhost_name",
.mode = S_IRUGO,
},
.show = show_host_vhost_name,
};
static ssize_t show_host_srp_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvscsi_host_data *hostdata = shost_priv(shost);
int len;
len = snprintf(buf, PAGE_SIZE, "%s\n",
hostdata->madapter_info.srp_version);
return len;
}
static struct device_attribute ibmvscsi_host_srp_version = {
.attr = {
.name = "srp_version",
.mode = S_IRUGO,
},
.show = show_host_srp_version,
};
static ssize_t show_host_partition_name(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvscsi_host_data *hostdata = shost_priv(shost);
int len;
len = snprintf(buf, PAGE_SIZE, "%s\n",
hostdata->madapter_info.partition_name);
return len;
}
static struct device_attribute ibmvscsi_host_partition_name = {
.attr = {
.name = "partition_name",
.mode = S_IRUGO,
},
.show = show_host_partition_name,
};
static ssize_t show_host_partition_number(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvscsi_host_data *hostdata = shost_priv(shost);
int len;
len = snprintf(buf, PAGE_SIZE, "%d\n",
be32_to_cpu(hostdata->madapter_info.partition_number));
return len;
}
static struct device_attribute ibmvscsi_host_partition_number = {
.attr = {
.name = "partition_number",
.mode = S_IRUGO,
},
.show = show_host_partition_number,
};
static ssize_t show_host_mad_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvscsi_host_data *hostdata = shost_priv(shost);
int len;
len = snprintf(buf, PAGE_SIZE, "%d\n",
be32_to_cpu(hostdata->madapter_info.mad_version));
return len;
}
static struct device_attribute ibmvscsi_host_mad_version = {
.attr = {
.name = "mad_version",
.mode = S_IRUGO,
},
.show = show_host_mad_version,
};
static ssize_t show_host_os_type(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvscsi_host_data *hostdata = shost_priv(shost);
int len;
len = snprintf(buf, PAGE_SIZE, "%d\n",
be32_to_cpu(hostdata->madapter_info.os_type));
return len;
}
static struct device_attribute ibmvscsi_host_os_type = {
.attr = {
.name = "os_type",
.mode = S_IRUGO,
},
.show = show_host_os_type,
};
static ssize_t show_host_config(struct device *dev,
struct device_attribute *attr, char *buf)
{
return 0;
}
static struct device_attribute ibmvscsi_host_config = {
.attr = {
.name = "config",
.mode = S_IRUGO,
},
.show = show_host_config,
};
static int ibmvscsi_host_reset(struct Scsi_Host *shost, int reset_type)
{
struct ibmvscsi_host_data *hostdata = shost_priv(shost);
dev_info(hostdata->dev, "Initiating adapter reset!\n");
ibmvscsi_reset_host(hostdata);
return 0;
}
static struct attribute *ibmvscsi_host_attrs[] = {
&ibmvscsi_host_vhost_loc.attr,
&ibmvscsi_host_vhost_name.attr,
&ibmvscsi_host_srp_version.attr,
&ibmvscsi_host_partition_name.attr,
&ibmvscsi_host_partition_number.attr,
&ibmvscsi_host_mad_version.attr,
&ibmvscsi_host_os_type.attr,
&ibmvscsi_host_config.attr,
NULL
};
ATTRIBUTE_GROUPS(ibmvscsi_host);
/* ------------------------------------------------------------
* SCSI driver registration
*/
static struct scsi_host_template driver_template = {
.module = THIS_MODULE,
.name = "IBM POWER Virtual SCSI Adapter " IBMVSCSI_VERSION,
.proc_name = "ibmvscsi",
.queuecommand = ibmvscsi_queuecommand,
.eh_timed_out = srp_timed_out,
.eh_abort_handler = ibmvscsi_eh_abort_handler,
.eh_device_reset_handler = ibmvscsi_eh_device_reset_handler,
.eh_host_reset_handler = ibmvscsi_eh_host_reset_handler,
.slave_configure = ibmvscsi_slave_configure,
.change_queue_depth = ibmvscsi_change_queue_depth,
.host_reset = ibmvscsi_host_reset,
.cmd_per_lun = IBMVSCSI_CMDS_PER_LUN_DEFAULT,
.can_queue = IBMVSCSI_MAX_REQUESTS_DEFAULT,
.this_id = -1,
.sg_tablesize = SG_ALL,
.shost_groups = ibmvscsi_host_groups,
};
/**
* ibmvscsi_get_desired_dma - Calculate IO memory desired by the driver
*
* @vdev: struct vio_dev for the device whose desired IO mem is to be returned
*
* Return value:
* Number of bytes of IO data the driver will need to perform well.
*/
static unsigned long ibmvscsi_get_desired_dma(struct vio_dev *vdev)
{
/* iu_storage data allocated in initialize_event_pool */
unsigned long desired_io = max_events * sizeof(union viosrp_iu);
/* add io space for sg data */
desired_io += (IBMVSCSI_MAX_SECTORS_DEFAULT * 512 *
IBMVSCSI_CMDS_PER_LUN_DEFAULT);
return desired_io;
}
static void ibmvscsi_do_work(struct ibmvscsi_host_data *hostdata)
{
unsigned long flags;
int rc;
char *action = "reset";
spin_lock_irqsave(hostdata->host->host_lock, flags);
switch (hostdata->action) {
case IBMVSCSI_HOST_ACTION_UNBLOCK:
rc = 0;
break;
case IBMVSCSI_HOST_ACTION_RESET:
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
rc = ibmvscsi_reset_crq_queue(&hostdata->queue, hostdata);
spin_lock_irqsave(hostdata->host->host_lock, flags);
if (!rc)
rc = ibmvscsi_send_crq(hostdata, 0xC001000000000000LL, 0);
vio_enable_interrupts(to_vio_dev(hostdata->dev));
break;
case IBMVSCSI_HOST_ACTION_REENABLE:
action = "enable";
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
rc = ibmvscsi_reenable_crq_queue(&hostdata->queue, hostdata);
spin_lock_irqsave(hostdata->host->host_lock, flags);
if (!rc)
rc = ibmvscsi_send_crq(hostdata, 0xC001000000000000LL, 0);
break;
case IBMVSCSI_HOST_ACTION_NONE:
default:
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
return;
}
hostdata->action = IBMVSCSI_HOST_ACTION_NONE;
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
if (rc) {
ibmvscsi_set_request_limit(hostdata, -1);
dev_err(hostdata->dev, "error after %s\n", action);
}
scsi_unblock_requests(hostdata->host);
}
static int __ibmvscsi_work_to_do(struct ibmvscsi_host_data *hostdata)
{
if (kthread_should_stop())
return 1;
switch (hostdata->action) {
case IBMVSCSI_HOST_ACTION_NONE:
return 0;
case IBMVSCSI_HOST_ACTION_RESET:
case IBMVSCSI_HOST_ACTION_REENABLE:
case IBMVSCSI_HOST_ACTION_UNBLOCK:
default:
break;
}
return 1;
}
static int ibmvscsi_work_to_do(struct ibmvscsi_host_data *hostdata)
{
unsigned long flags;
int rc;
spin_lock_irqsave(hostdata->host->host_lock, flags);
rc = __ibmvscsi_work_to_do(hostdata);
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
return rc;
}
static int ibmvscsi_work(void *data)
{
struct ibmvscsi_host_data *hostdata = data;
int rc;
set_user_nice(current, MIN_NICE);
while (1) {
rc = wait_event_interruptible(hostdata->work_wait_q,
ibmvscsi_work_to_do(hostdata));
BUG_ON(rc);
if (kthread_should_stop())
break;
ibmvscsi_do_work(hostdata);
}
return 0;
}
/*
* Called by bus code for each adapter
*/
static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id)
{
struct ibmvscsi_host_data *hostdata;
struct Scsi_Host *host;
struct device *dev = &vdev->dev;
struct srp_rport_identifiers ids;
struct srp_rport *rport;
unsigned long wait_switch = 0;
int rc;
dev_set_drvdata(&vdev->dev, NULL);
host = scsi_host_alloc(&driver_template, sizeof(*hostdata));
if (!host) {
dev_err(&vdev->dev, "couldn't allocate host data\n");
goto scsi_host_alloc_failed;
}
host->transportt = ibmvscsi_transport_template;
hostdata = shost_priv(host);
memset(hostdata, 0x00, sizeof(*hostdata));
INIT_LIST_HEAD(&hostdata->sent);
init_waitqueue_head(&hostdata->work_wait_q);
hostdata->host = host;
hostdata->dev = dev;
ibmvscsi_set_request_limit(hostdata, -1);
hostdata->host->max_sectors = IBMVSCSI_MAX_SECTORS_DEFAULT;
if (map_persist_bufs(hostdata)) {
dev_err(&vdev->dev, "couldn't map persistent buffers\n");
goto persist_bufs_failed;
}
hostdata->work_thread = kthread_run(ibmvscsi_work, hostdata, "%s_%d",
"ibmvscsi", host->host_no);
if (IS_ERR(hostdata->work_thread)) {
dev_err(&vdev->dev, "couldn't initialize kthread. rc=%ld\n",
PTR_ERR(hostdata->work_thread));
goto init_crq_failed;
}
rc = ibmvscsi_init_crq_queue(&hostdata->queue, hostdata, max_events);
if (rc != 0 && rc != H_RESOURCE) {
dev_err(&vdev->dev, "couldn't initialize crq. rc=%d\n", rc);
goto kill_kthread;
}
if (initialize_event_pool(&hostdata->pool, max_events, hostdata) != 0) {
dev_err(&vdev->dev, "couldn't initialize event pool\n");
goto init_pool_failed;
}
host->max_lun = IBMVSCSI_MAX_LUN;
host->max_id = max_id;
host->max_channel = max_channel;
host->max_cmd_len = 16;
dev_info(dev,
"Maximum ID: %d Maximum LUN: %llu Maximum Channel: %d\n",
host->max_id, host->max_lun, host->max_channel);
if (scsi_add_host(hostdata->host, hostdata->dev))
goto add_host_failed;
/* we don't have a proper target_port_id so let's use the fake one */
memcpy(ids.port_id, hostdata->madapter_info.partition_name,
sizeof(ids.port_id));
ids.roles = SRP_RPORT_ROLE_TARGET;
rport = srp_rport_add(host, &ids);
if (IS_ERR(rport))
goto add_srp_port_failed;
/* Try to send an initialization message. Note that this is allowed
* to fail if the other end is not acive. In that case we don't
* want to scan
*/
if (ibmvscsi_send_crq(hostdata, 0xC001000000000000LL, 0) == 0
|| rc == H_RESOURCE) {
/*
* Wait around max init_timeout secs for the adapter to finish
* initializing. When we are done initializing, we will have a
* valid request_limit. We don't want Linux scanning before
* we are ready.
*/
for (wait_switch = jiffies + (init_timeout * HZ);
time_before(jiffies, wait_switch) &&
atomic_read(&hostdata->request_limit) < 2;) {
msleep(10);
}
/* if we now have a valid request_limit, initiate a scan */
if (atomic_read(&hostdata->request_limit) > 0)
scsi_scan_host(host);
}
dev_set_drvdata(&vdev->dev, hostdata);
spin_lock(&ibmvscsi_driver_lock);
list_add_tail(&hostdata->host_list, &ibmvscsi_head);
spin_unlock(&ibmvscsi_driver_lock);
return 0;
add_srp_port_failed:
scsi_remove_host(hostdata->host);
add_host_failed:
release_event_pool(&hostdata->pool, hostdata);
init_pool_failed:
ibmvscsi_release_crq_queue(&hostdata->queue, hostdata, max_events);
kill_kthread:
kthread_stop(hostdata->work_thread);
init_crq_failed:
unmap_persist_bufs(hostdata);
persist_bufs_failed:
scsi_host_put(host);
scsi_host_alloc_failed:
return -1;
}
static void ibmvscsi_remove(struct vio_dev *vdev)
{
struct ibmvscsi_host_data *hostdata = dev_get_drvdata(&vdev->dev);
srp_remove_host(hostdata->host);
scsi_remove_host(hostdata->host);
purge_requests(hostdata, DID_ERROR);
release_event_pool(&hostdata->pool, hostdata);
ibmvscsi_release_crq_queue(&hostdata->queue, hostdata,
max_events);
kthread_stop(hostdata->work_thread);
unmap_persist_bufs(hostdata);
spin_lock(&ibmvscsi_driver_lock);
list_del(&hostdata->host_list);
spin_unlock(&ibmvscsi_driver_lock);
scsi_host_put(hostdata->host);
}
/**
* ibmvscsi_resume: Resume from suspend
* @dev: device struct
*
* We may have lost an interrupt across suspend/resume, so kick the
* interrupt handler
*/
static int ibmvscsi_resume(struct device *dev)
{
struct ibmvscsi_host_data *hostdata = dev_get_drvdata(dev);
vio_disable_interrupts(to_vio_dev(hostdata->dev));
tasklet_schedule(&hostdata->srp_task);
return 0;
}
/*
* ibmvscsi_device_table: Used by vio.c to match devices in the device tree we
* support.
*/
static const struct vio_device_id ibmvscsi_device_table[] = {
{"vscsi", "IBM,v-scsi"},
{ "", "" }
};
MODULE_DEVICE_TABLE(vio, ibmvscsi_device_table);
static const struct dev_pm_ops ibmvscsi_pm_ops = {
.resume = ibmvscsi_resume
};
static struct vio_driver ibmvscsi_driver = {
.id_table = ibmvscsi_device_table,
.probe = ibmvscsi_probe,
.remove = ibmvscsi_remove,
.get_desired_dma = ibmvscsi_get_desired_dma,
.name = "ibmvscsi",
.pm = &ibmvscsi_pm_ops,
};
static struct srp_function_template ibmvscsi_transport_functions = {
};
static int __init ibmvscsi_module_init(void)
{
int ret;
/* Ensure we have two requests to do error recovery */
driver_template.can_queue = max_requests;
max_events = max_requests + 2;
if (!firmware_has_feature(FW_FEATURE_VIO))
return -ENODEV;
ibmvscsi_transport_template =
srp_attach_transport(&ibmvscsi_transport_functions);
if (!ibmvscsi_transport_template)
return -ENOMEM;
ret = vio_register_driver(&ibmvscsi_driver);
if (ret)
srp_release_transport(ibmvscsi_transport_template);
return ret;
}
static void __exit ibmvscsi_module_exit(void)
{
vio_unregister_driver(&ibmvscsi_driver);
srp_release_transport(ibmvscsi_transport_template);
}
module_init(ibmvscsi_module_init);
module_exit(ibmvscsi_module_exit);
|
linux-master
|
drivers/scsi/ibmvscsi/ibmvscsi.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ibmvfc.c -- driver for IBM Power Virtual Fibre Channel Adapter
*
* Written By: Brian King <[email protected]>, IBM Corporation
*
* Copyright (C) IBM Corporation, 2008
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/kthread.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/pm.h>
#include <linux/stringify.h>
#include <linux/bsg-lib.h>
#include <asm/firmware.h>
#include <asm/irq.h>
#include <asm/rtas.h>
#include <asm/vio.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi_bsg_fc.h>
#include "ibmvfc.h"
static unsigned int init_timeout = IBMVFC_INIT_TIMEOUT;
static unsigned int default_timeout = IBMVFC_DEFAULT_TIMEOUT;
static u64 max_lun = IBMVFC_MAX_LUN;
static unsigned int max_targets = IBMVFC_MAX_TARGETS;
static unsigned int max_requests = IBMVFC_MAX_REQUESTS_DEFAULT;
static unsigned int disc_threads = IBMVFC_MAX_DISC_THREADS;
static unsigned int ibmvfc_debug = IBMVFC_DEBUG;
static unsigned int log_level = IBMVFC_DEFAULT_LOG_LEVEL;
static unsigned int cls3_error = IBMVFC_CLS3_ERROR;
static unsigned int mq_enabled = IBMVFC_MQ;
static unsigned int nr_scsi_hw_queues = IBMVFC_SCSI_HW_QUEUES;
static unsigned int nr_scsi_channels = IBMVFC_SCSI_CHANNELS;
static unsigned int mig_channels_only = IBMVFC_MIG_NO_SUB_TO_CRQ;
static unsigned int mig_no_less_channels = IBMVFC_MIG_NO_N_TO_M;
static LIST_HEAD(ibmvfc_head);
static DEFINE_SPINLOCK(ibmvfc_driver_lock);
static struct scsi_transport_template *ibmvfc_transport_template;
MODULE_DESCRIPTION("IBM Virtual Fibre Channel Driver");
MODULE_AUTHOR("Brian King <[email protected]>");
MODULE_LICENSE("GPL");
MODULE_VERSION(IBMVFC_DRIVER_VERSION);
module_param_named(mq, mq_enabled, uint, S_IRUGO);
MODULE_PARM_DESC(mq, "Enable multiqueue support. "
"[Default=" __stringify(IBMVFC_MQ) "]");
module_param_named(scsi_host_queues, nr_scsi_hw_queues, uint, S_IRUGO);
MODULE_PARM_DESC(scsi_host_queues, "Number of SCSI Host submission queues. "
"[Default=" __stringify(IBMVFC_SCSI_HW_QUEUES) "]");
module_param_named(scsi_hw_channels, nr_scsi_channels, uint, S_IRUGO);
MODULE_PARM_DESC(scsi_hw_channels, "Number of hw scsi channels to request. "
"[Default=" __stringify(IBMVFC_SCSI_CHANNELS) "]");
module_param_named(mig_channels_only, mig_channels_only, uint, S_IRUGO);
MODULE_PARM_DESC(mig_channels_only, "Prevent migration to non-channelized system. "
"[Default=" __stringify(IBMVFC_MIG_NO_SUB_TO_CRQ) "]");
module_param_named(mig_no_less_channels, mig_no_less_channels, uint, S_IRUGO);
MODULE_PARM_DESC(mig_no_less_channels, "Prevent migration to system with less channels. "
"[Default=" __stringify(IBMVFC_MIG_NO_N_TO_M) "]");
module_param_named(init_timeout, init_timeout, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(init_timeout, "Initialization timeout in seconds. "
"[Default=" __stringify(IBMVFC_INIT_TIMEOUT) "]");
module_param_named(default_timeout, default_timeout, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(default_timeout,
"Default timeout in seconds for initialization and EH commands. "
"[Default=" __stringify(IBMVFC_DEFAULT_TIMEOUT) "]");
module_param_named(max_requests, max_requests, uint, S_IRUGO);
MODULE_PARM_DESC(max_requests, "Maximum requests for this adapter. "
"[Default=" __stringify(IBMVFC_MAX_REQUESTS_DEFAULT) "]");
module_param_named(max_lun, max_lun, ullong, S_IRUGO);
MODULE_PARM_DESC(max_lun, "Maximum allowed LUN. "
"[Default=" __stringify(IBMVFC_MAX_LUN) "]");
module_param_named(max_targets, max_targets, uint, S_IRUGO);
MODULE_PARM_DESC(max_targets, "Maximum allowed targets. "
"[Default=" __stringify(IBMVFC_MAX_TARGETS) "]");
module_param_named(disc_threads, disc_threads, uint, S_IRUGO);
MODULE_PARM_DESC(disc_threads, "Number of device discovery threads to use. "
"[Default=" __stringify(IBMVFC_MAX_DISC_THREADS) "]");
module_param_named(debug, ibmvfc_debug, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Enable driver debug information. "
"[Default=" __stringify(IBMVFC_DEBUG) "]");
module_param_named(log_level, log_level, uint, 0);
MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver. "
"[Default=" __stringify(IBMVFC_DEFAULT_LOG_LEVEL) "]");
module_param_named(cls3_error, cls3_error, uint, 0);
MODULE_PARM_DESC(cls3_error, "Enable FC Class 3 Error Recovery. "
"[Default=" __stringify(IBMVFC_CLS3_ERROR) "]");
static const struct {
u16 status;
u16 error;
u8 result;
u8 retry;
int log;
char *name;
} cmd_status [] = {
{ IBMVFC_FABRIC_MAPPED, IBMVFC_UNABLE_TO_ESTABLISH, DID_ERROR, 1, 1, "unable to establish" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_XPORT_FAULT, DID_OK, 1, 0, "transport fault" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_CMD_TIMEOUT, DID_TIME_OUT, 1, 1, "command timeout" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_ENETDOWN, DID_TRANSPORT_DISRUPTED, 1, 1, "network down" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_HW_FAILURE, DID_ERROR, 1, 1, "hardware failure" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_LINK_DOWN_ERR, DID_REQUEUE, 0, 0, "link down" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_LINK_DEAD_ERR, DID_ERROR, 0, 0, "link dead" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_UNABLE_TO_REGISTER, DID_ERROR, 1, 1, "unable to register" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_XPORT_BUSY, DID_BUS_BUSY, 1, 0, "transport busy" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_XPORT_DEAD, DID_ERROR, 0, 1, "transport dead" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_CONFIG_ERROR, DID_ERROR, 1, 1, "configuration error" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_NAME_SERVER_FAIL, DID_ERROR, 1, 1, "name server failure" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_LINK_HALTED, DID_REQUEUE, 1, 0, "link halted" },
{ IBMVFC_FABRIC_MAPPED, IBMVFC_XPORT_GENERAL, DID_OK, 1, 0, "general transport error" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_CRQ_FAILURE, DID_REQUEUE, 1, 1, "CRQ failure" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_SW_FAILURE, DID_ERROR, 0, 1, "software failure" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_INVALID_PARAMETER, DID_ERROR, 0, 1, "invalid parameter" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_MISSING_PARAMETER, DID_ERROR, 0, 1, "missing parameter" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_HOST_IO_BUS, DID_ERROR, 1, 1, "host I/O bus failure" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_TRANS_CANCELLED, DID_ERROR, 0, 1, "transaction cancelled" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_TRANS_CANCELLED_IMPLICIT, DID_ERROR, 0, 1, "transaction cancelled implicit" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_INSUFFICIENT_RESOURCE, DID_REQUEUE, 1, 1, "insufficient resources" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_PLOGI_REQUIRED, DID_ERROR, 0, 1, "port login required" },
{ IBMVFC_VIOS_FAILURE, IBMVFC_COMMAND_FAILED, DID_ERROR, 1, 1, "command failed" },
{ IBMVFC_FC_FAILURE, IBMVFC_INVALID_ELS_CMD_CODE, DID_ERROR, 0, 1, "invalid ELS command code" },
{ IBMVFC_FC_FAILURE, IBMVFC_INVALID_VERSION, DID_ERROR, 0, 1, "invalid version level" },
{ IBMVFC_FC_FAILURE, IBMVFC_LOGICAL_ERROR, DID_ERROR, 1, 1, "logical error" },
{ IBMVFC_FC_FAILURE, IBMVFC_INVALID_CT_IU_SIZE, DID_ERROR, 0, 1, "invalid CT_IU size" },
{ IBMVFC_FC_FAILURE, IBMVFC_LOGICAL_BUSY, DID_REQUEUE, 1, 0, "logical busy" },
{ IBMVFC_FC_FAILURE, IBMVFC_PROTOCOL_ERROR, DID_ERROR, 1, 1, "protocol error" },
{ IBMVFC_FC_FAILURE, IBMVFC_UNABLE_TO_PERFORM_REQ, DID_ERROR, 1, 1, "unable to perform request" },
{ IBMVFC_FC_FAILURE, IBMVFC_CMD_NOT_SUPPORTED, DID_ERROR, 0, 0, "command not supported" },
{ IBMVFC_FC_FAILURE, IBMVFC_SERVER_NOT_AVAIL, DID_ERROR, 0, 1, "server not available" },
{ IBMVFC_FC_FAILURE, IBMVFC_CMD_IN_PROGRESS, DID_ERROR, 0, 1, "command already in progress" },
{ IBMVFC_FC_FAILURE, IBMVFC_VENDOR_SPECIFIC, DID_ERROR, 1, 1, "vendor specific" },
{ IBMVFC_FC_SCSI_ERROR, 0, DID_OK, 1, 0, "SCSI error" },
{ IBMVFC_FC_SCSI_ERROR, IBMVFC_COMMAND_FAILED, DID_ERROR, 0, 1, "PRLI to device failed." },
};
static void ibmvfc_npiv_login(struct ibmvfc_host *);
static void ibmvfc_tgt_send_prli(struct ibmvfc_target *);
static void ibmvfc_tgt_send_plogi(struct ibmvfc_target *);
static void ibmvfc_tgt_query_target(struct ibmvfc_target *);
static void ibmvfc_npiv_logout(struct ibmvfc_host *);
static void ibmvfc_tgt_implicit_logout_and_del(struct ibmvfc_target *);
static void ibmvfc_tgt_move_login(struct ibmvfc_target *);
static void ibmvfc_dereg_sub_crqs(struct ibmvfc_host *);
static void ibmvfc_reg_sub_crqs(struct ibmvfc_host *);
static const char *unknown_error = "unknown error";
static long h_reg_sub_crq(unsigned long unit_address, unsigned long ioba,
unsigned long length, unsigned long *cookie,
unsigned long *irq)
{
unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
long rc;
rc = plpar_hcall(H_REG_SUB_CRQ, retbuf, unit_address, ioba, length);
*cookie = retbuf[0];
*irq = retbuf[1];
return rc;
}
static int ibmvfc_check_caps(struct ibmvfc_host *vhost, unsigned long cap_flags)
{
u64 host_caps = be64_to_cpu(vhost->login_buf->resp.capabilities);
return (host_caps & cap_flags) ? 1 : 0;
}
static struct ibmvfc_fcp_cmd_iu *ibmvfc_get_fcp_iu(struct ibmvfc_host *vhost,
struct ibmvfc_cmd *vfc_cmd)
{
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN))
return &vfc_cmd->v2.iu;
else
return &vfc_cmd->v1.iu;
}
static struct ibmvfc_fcp_rsp *ibmvfc_get_fcp_rsp(struct ibmvfc_host *vhost,
struct ibmvfc_cmd *vfc_cmd)
{
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN))
return &vfc_cmd->v2.rsp;
else
return &vfc_cmd->v1.rsp;
}
#ifdef CONFIG_SCSI_IBMVFC_TRACE
/**
* ibmvfc_trc_start - Log a start trace entry
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_trc_start(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_cmd *vfc_cmd = &evt->iu.cmd;
struct ibmvfc_mad_common *mad = &evt->iu.mad_common;
struct ibmvfc_fcp_cmd_iu *iu = ibmvfc_get_fcp_iu(vhost, vfc_cmd);
struct ibmvfc_trace_entry *entry;
int index = atomic_inc_return(&vhost->trace_index) & IBMVFC_TRACE_INDEX_MASK;
entry = &vhost->trace[index];
entry->evt = evt;
entry->time = jiffies;
entry->fmt = evt->crq.format;
entry->type = IBMVFC_TRC_START;
switch (entry->fmt) {
case IBMVFC_CMD_FORMAT:
entry->op_code = iu->cdb[0];
entry->scsi_id = be64_to_cpu(vfc_cmd->tgt_scsi_id);
entry->lun = scsilun_to_int(&iu->lun);
entry->tmf_flags = iu->tmf_flags;
entry->u.start.xfer_len = be32_to_cpu(iu->xfer_len);
break;
case IBMVFC_MAD_FORMAT:
entry->op_code = be32_to_cpu(mad->opcode);
break;
default:
break;
}
}
/**
* ibmvfc_trc_end - Log an end trace entry
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_trc_end(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_cmd *vfc_cmd = &evt->xfer_iu->cmd;
struct ibmvfc_mad_common *mad = &evt->xfer_iu->mad_common;
struct ibmvfc_fcp_cmd_iu *iu = ibmvfc_get_fcp_iu(vhost, vfc_cmd);
struct ibmvfc_fcp_rsp *rsp = ibmvfc_get_fcp_rsp(vhost, vfc_cmd);
struct ibmvfc_trace_entry *entry;
int index = atomic_inc_return(&vhost->trace_index) & IBMVFC_TRACE_INDEX_MASK;
entry = &vhost->trace[index];
entry->evt = evt;
entry->time = jiffies;
entry->fmt = evt->crq.format;
entry->type = IBMVFC_TRC_END;
switch (entry->fmt) {
case IBMVFC_CMD_FORMAT:
entry->op_code = iu->cdb[0];
entry->scsi_id = be64_to_cpu(vfc_cmd->tgt_scsi_id);
entry->lun = scsilun_to_int(&iu->lun);
entry->tmf_flags = iu->tmf_flags;
entry->u.end.status = be16_to_cpu(vfc_cmd->status);
entry->u.end.error = be16_to_cpu(vfc_cmd->error);
entry->u.end.fcp_rsp_flags = rsp->flags;
entry->u.end.rsp_code = rsp->data.info.rsp_code;
entry->u.end.scsi_status = rsp->scsi_status;
break;
case IBMVFC_MAD_FORMAT:
entry->op_code = be32_to_cpu(mad->opcode);
entry->u.end.status = be16_to_cpu(mad->status);
break;
default:
break;
}
}
#else
#define ibmvfc_trc_start(evt) do { } while (0)
#define ibmvfc_trc_end(evt) do { } while (0)
#endif
/**
* ibmvfc_get_err_index - Find the index into cmd_status for the fcp response
* @status: status / error class
* @error: error
*
* Return value:
* index into cmd_status / -EINVAL on failure
**/
static int ibmvfc_get_err_index(u16 status, u16 error)
{
int i;
for (i = 0; i < ARRAY_SIZE(cmd_status); i++)
if ((cmd_status[i].status & status) == cmd_status[i].status &&
cmd_status[i].error == error)
return i;
return -EINVAL;
}
/**
* ibmvfc_get_cmd_error - Find the error description for the fcp response
* @status: status / error class
* @error: error
*
* Return value:
* error description string
**/
static const char *ibmvfc_get_cmd_error(u16 status, u16 error)
{
int rc = ibmvfc_get_err_index(status, error);
if (rc >= 0)
return cmd_status[rc].name;
return unknown_error;
}
/**
* ibmvfc_get_err_result - Find the scsi status to return for the fcp response
* @vhost: ibmvfc host struct
* @vfc_cmd: ibmvfc command struct
*
* Return value:
* SCSI result value to return for completed command
**/
static int ibmvfc_get_err_result(struct ibmvfc_host *vhost, struct ibmvfc_cmd *vfc_cmd)
{
int err;
struct ibmvfc_fcp_rsp *rsp = ibmvfc_get_fcp_rsp(vhost, vfc_cmd);
int fc_rsp_len = be32_to_cpu(rsp->fcp_rsp_len);
if ((rsp->flags & FCP_RSP_LEN_VALID) &&
((fc_rsp_len && fc_rsp_len != 4 && fc_rsp_len != 8) ||
rsp->data.info.rsp_code))
return DID_ERROR << 16;
err = ibmvfc_get_err_index(be16_to_cpu(vfc_cmd->status), be16_to_cpu(vfc_cmd->error));
if (err >= 0)
return rsp->scsi_status | (cmd_status[err].result << 16);
return rsp->scsi_status | (DID_ERROR << 16);
}
/**
* ibmvfc_retry_cmd - Determine if error status is retryable
* @status: status / error class
* @error: error
*
* Return value:
* 1 if error should be retried / 0 if it should not
**/
static int ibmvfc_retry_cmd(u16 status, u16 error)
{
int rc = ibmvfc_get_err_index(status, error);
if (rc >= 0)
return cmd_status[rc].retry;
return 1;
}
static const char *unknown_fc_explain = "unknown fc explain";
static const struct {
u16 fc_explain;
char *name;
} ls_explain [] = {
{ 0x00, "no additional explanation" },
{ 0x01, "service parameter error - options" },
{ 0x03, "service parameter error - initiator control" },
{ 0x05, "service parameter error - recipient control" },
{ 0x07, "service parameter error - received data field size" },
{ 0x09, "service parameter error - concurrent seq" },
{ 0x0B, "service parameter error - credit" },
{ 0x0D, "invalid N_Port/F_Port_Name" },
{ 0x0E, "invalid node/Fabric Name" },
{ 0x0F, "invalid common service parameters" },
{ 0x11, "invalid association header" },
{ 0x13, "association header required" },
{ 0x15, "invalid originator S_ID" },
{ 0x17, "invalid OX_ID-RX-ID combination" },
{ 0x19, "command (request) already in progress" },
{ 0x1E, "N_Port Login requested" },
{ 0x1F, "Invalid N_Port_ID" },
};
static const struct {
u16 fc_explain;
char *name;
} gs_explain [] = {
{ 0x00, "no additional explanation" },
{ 0x01, "port identifier not registered" },
{ 0x02, "port name not registered" },
{ 0x03, "node name not registered" },
{ 0x04, "class of service not registered" },
{ 0x06, "initial process associator not registered" },
{ 0x07, "FC-4 TYPEs not registered" },
{ 0x08, "symbolic port name not registered" },
{ 0x09, "symbolic node name not registered" },
{ 0x0A, "port type not registered" },
{ 0xF0, "authorization exception" },
{ 0xF1, "authentication exception" },
{ 0xF2, "data base full" },
{ 0xF3, "data base empty" },
{ 0xF4, "processing request" },
{ 0xF5, "unable to verify connection" },
{ 0xF6, "devices not in a common zone" },
};
/**
* ibmvfc_get_ls_explain - Return the FC Explain description text
* @status: FC Explain status
*
* Returns:
* error string
**/
static const char *ibmvfc_get_ls_explain(u16 status)
{
int i;
for (i = 0; i < ARRAY_SIZE(ls_explain); i++)
if (ls_explain[i].fc_explain == status)
return ls_explain[i].name;
return unknown_fc_explain;
}
/**
* ibmvfc_get_gs_explain - Return the FC Explain description text
* @status: FC Explain status
*
* Returns:
* error string
**/
static const char *ibmvfc_get_gs_explain(u16 status)
{
int i;
for (i = 0; i < ARRAY_SIZE(gs_explain); i++)
if (gs_explain[i].fc_explain == status)
return gs_explain[i].name;
return unknown_fc_explain;
}
static const struct {
enum ibmvfc_fc_type fc_type;
char *name;
} fc_type [] = {
{ IBMVFC_FABRIC_REJECT, "fabric reject" },
{ IBMVFC_PORT_REJECT, "port reject" },
{ IBMVFC_LS_REJECT, "ELS reject" },
{ IBMVFC_FABRIC_BUSY, "fabric busy" },
{ IBMVFC_PORT_BUSY, "port busy" },
{ IBMVFC_BASIC_REJECT, "basic reject" },
};
static const char *unknown_fc_type = "unknown fc type";
/**
* ibmvfc_get_fc_type - Return the FC Type description text
* @status: FC Type error status
*
* Returns:
* error string
**/
static const char *ibmvfc_get_fc_type(u16 status)
{
int i;
for (i = 0; i < ARRAY_SIZE(fc_type); i++)
if (fc_type[i].fc_type == status)
return fc_type[i].name;
return unknown_fc_type;
}
/**
* ibmvfc_set_tgt_action - Set the next init action for the target
* @tgt: ibmvfc target struct
* @action: action to perform
*
* Returns:
* 0 if action changed / non-zero if not changed
**/
static int ibmvfc_set_tgt_action(struct ibmvfc_target *tgt,
enum ibmvfc_target_action action)
{
int rc = -EINVAL;
switch (tgt->action) {
case IBMVFC_TGT_ACTION_LOGOUT_RPORT:
if (action == IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT ||
action == IBMVFC_TGT_ACTION_DEL_RPORT) {
tgt->action = action;
rc = 0;
}
break;
case IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT:
if (action == IBMVFC_TGT_ACTION_DEL_RPORT ||
action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
tgt->action = action;
rc = 0;
}
break;
case IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT:
if (action == IBMVFC_TGT_ACTION_LOGOUT_RPORT) {
tgt->action = action;
rc = 0;
}
break;
case IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT:
if (action == IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT) {
tgt->action = action;
rc = 0;
}
break;
case IBMVFC_TGT_ACTION_DEL_RPORT:
if (action == IBMVFC_TGT_ACTION_DELETED_RPORT) {
tgt->action = action;
rc = 0;
}
break;
case IBMVFC_TGT_ACTION_DELETED_RPORT:
break;
default:
tgt->action = action;
rc = 0;
break;
}
if (action >= IBMVFC_TGT_ACTION_LOGOUT_RPORT)
tgt->add_rport = 0;
return rc;
}
/**
* ibmvfc_set_host_state - Set the state for the host
* @vhost: ibmvfc host struct
* @state: state to set host to
*
* Returns:
* 0 if state changed / non-zero if not changed
**/
static int ibmvfc_set_host_state(struct ibmvfc_host *vhost,
enum ibmvfc_host_state state)
{
int rc = 0;
switch (vhost->state) {
case IBMVFC_HOST_OFFLINE:
rc = -EINVAL;
break;
default:
vhost->state = state;
break;
}
return rc;
}
/**
* ibmvfc_set_host_action - Set the next init action for the host
* @vhost: ibmvfc host struct
* @action: action to perform
*
**/
static void ibmvfc_set_host_action(struct ibmvfc_host *vhost,
enum ibmvfc_host_action action)
{
switch (action) {
case IBMVFC_HOST_ACTION_ALLOC_TGTS:
if (vhost->action == IBMVFC_HOST_ACTION_INIT_WAIT)
vhost->action = action;
break;
case IBMVFC_HOST_ACTION_LOGO_WAIT:
if (vhost->action == IBMVFC_HOST_ACTION_LOGO)
vhost->action = action;
break;
case IBMVFC_HOST_ACTION_INIT_WAIT:
if (vhost->action == IBMVFC_HOST_ACTION_INIT)
vhost->action = action;
break;
case IBMVFC_HOST_ACTION_QUERY:
switch (vhost->action) {
case IBMVFC_HOST_ACTION_INIT_WAIT:
case IBMVFC_HOST_ACTION_NONE:
case IBMVFC_HOST_ACTION_TGT_DEL_FAILED:
vhost->action = action;
break;
default:
break;
}
break;
case IBMVFC_HOST_ACTION_TGT_INIT:
if (vhost->action == IBMVFC_HOST_ACTION_ALLOC_TGTS)
vhost->action = action;
break;
case IBMVFC_HOST_ACTION_REENABLE:
case IBMVFC_HOST_ACTION_RESET:
vhost->action = action;
break;
case IBMVFC_HOST_ACTION_INIT:
case IBMVFC_HOST_ACTION_TGT_DEL:
case IBMVFC_HOST_ACTION_LOGO:
case IBMVFC_HOST_ACTION_QUERY_TGTS:
case IBMVFC_HOST_ACTION_TGT_DEL_FAILED:
case IBMVFC_HOST_ACTION_NONE:
default:
switch (vhost->action) {
case IBMVFC_HOST_ACTION_RESET:
case IBMVFC_HOST_ACTION_REENABLE:
break;
default:
vhost->action = action;
break;
}
break;
}
}
/**
* ibmvfc_reinit_host - Re-start host initialization (no NPIV Login)
* @vhost: ibmvfc host struct
*
* Return value:
* nothing
**/
static void ibmvfc_reinit_host(struct ibmvfc_host *vhost)
{
if (vhost->action == IBMVFC_HOST_ACTION_NONE &&
vhost->state == IBMVFC_ACTIVE) {
if (!ibmvfc_set_host_state(vhost, IBMVFC_INITIALIZING)) {
scsi_block_requests(vhost->host);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY);
}
} else
vhost->reinit = 1;
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_del_tgt - Schedule cleanup and removal of the target
* @tgt: ibmvfc target struct
**/
static void ibmvfc_del_tgt(struct ibmvfc_target *tgt)
{
if (!ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_RPORT)) {
tgt->job_step = ibmvfc_tgt_implicit_logout_and_del;
tgt->init_retries = 0;
}
wake_up(&tgt->vhost->work_wait_q);
}
/**
* ibmvfc_link_down - Handle a link down event from the adapter
* @vhost: ibmvfc host struct
* @state: ibmvfc host state to enter
*
**/
static void ibmvfc_link_down(struct ibmvfc_host *vhost,
enum ibmvfc_host_state state)
{
struct ibmvfc_target *tgt;
ENTER;
scsi_block_requests(vhost->host);
list_for_each_entry(tgt, &vhost->targets, queue)
ibmvfc_del_tgt(tgt);
ibmvfc_set_host_state(vhost, state);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_TGT_DEL);
vhost->events_to_log |= IBMVFC_AE_LINKDOWN;
wake_up(&vhost->work_wait_q);
LEAVE;
}
/**
* ibmvfc_init_host - Start host initialization
* @vhost: ibmvfc host struct
*
* Return value:
* nothing
**/
static void ibmvfc_init_host(struct ibmvfc_host *vhost)
{
struct ibmvfc_target *tgt;
if (vhost->action == IBMVFC_HOST_ACTION_INIT_WAIT) {
if (++vhost->init_retries > IBMVFC_MAX_HOST_INIT_RETRIES) {
dev_err(vhost->dev,
"Host initialization retries exceeded. Taking adapter offline\n");
ibmvfc_link_down(vhost, IBMVFC_HOST_OFFLINE);
return;
}
}
if (!ibmvfc_set_host_state(vhost, IBMVFC_INITIALIZING)) {
memset(vhost->async_crq.msgs.async, 0, PAGE_SIZE);
vhost->async_crq.cur = 0;
list_for_each_entry(tgt, &vhost->targets, queue) {
if (vhost->client_migrated)
tgt->need_login = 1;
else
ibmvfc_del_tgt(tgt);
}
scsi_block_requests(vhost->host);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT);
vhost->job_step = ibmvfc_npiv_login;
wake_up(&vhost->work_wait_q);
}
}
/**
* ibmvfc_send_crq - Send a CRQ
* @vhost: ibmvfc host struct
* @word1: the first 64 bits of the data
* @word2: the second 64 bits of the data
*
* Return value:
* 0 on success / other on failure
**/
static int ibmvfc_send_crq(struct ibmvfc_host *vhost, u64 word1, u64 word2)
{
struct vio_dev *vdev = to_vio_dev(vhost->dev);
return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, word1, word2);
}
static int ibmvfc_send_sub_crq(struct ibmvfc_host *vhost, u64 cookie, u64 word1,
u64 word2, u64 word3, u64 word4)
{
struct vio_dev *vdev = to_vio_dev(vhost->dev);
return plpar_hcall_norets(H_SEND_SUB_CRQ, vdev->unit_address, cookie,
word1, word2, word3, word4);
}
/**
* ibmvfc_send_crq_init - Send a CRQ init message
* @vhost: ibmvfc host struct
*
* Return value:
* 0 on success / other on failure
**/
static int ibmvfc_send_crq_init(struct ibmvfc_host *vhost)
{
ibmvfc_dbg(vhost, "Sending CRQ init\n");
return ibmvfc_send_crq(vhost, 0xC001000000000000LL, 0);
}
/**
* ibmvfc_send_crq_init_complete - Send a CRQ init complete message
* @vhost: ibmvfc host struct
*
* Return value:
* 0 on success / other on failure
**/
static int ibmvfc_send_crq_init_complete(struct ibmvfc_host *vhost)
{
ibmvfc_dbg(vhost, "Sending CRQ init complete\n");
return ibmvfc_send_crq(vhost, 0xC002000000000000LL, 0);
}
/**
* ibmvfc_init_event_pool - Allocates and initializes the event pool for a host
* @vhost: ibmvfc host who owns the event pool
* @queue: ibmvfc queue struct
* @size: pool size
*
* Returns zero on success.
**/
static int ibmvfc_init_event_pool(struct ibmvfc_host *vhost,
struct ibmvfc_queue *queue,
unsigned int size)
{
int i;
struct ibmvfc_event_pool *pool = &queue->evt_pool;
ENTER;
if (!size)
return 0;
pool->size = size;
pool->events = kcalloc(size, sizeof(*pool->events), GFP_KERNEL);
if (!pool->events)
return -ENOMEM;
pool->iu_storage = dma_alloc_coherent(vhost->dev,
size * sizeof(*pool->iu_storage),
&pool->iu_token, 0);
if (!pool->iu_storage) {
kfree(pool->events);
return -ENOMEM;
}
INIT_LIST_HEAD(&queue->sent);
INIT_LIST_HEAD(&queue->free);
spin_lock_init(&queue->l_lock);
for (i = 0; i < size; ++i) {
struct ibmvfc_event *evt = &pool->events[i];
/*
* evt->active states
* 1 = in flight
* 0 = being completed
* -1 = free/freed
*/
atomic_set(&evt->active, -1);
atomic_set(&evt->free, 1);
evt->crq.valid = 0x80;
evt->crq.ioba = cpu_to_be64(pool->iu_token + (sizeof(*evt->xfer_iu) * i));
evt->xfer_iu = pool->iu_storage + i;
evt->vhost = vhost;
evt->queue = queue;
evt->ext_list = NULL;
list_add_tail(&evt->queue_list, &queue->free);
}
LEAVE;
return 0;
}
/**
* ibmvfc_free_event_pool - Frees memory of the event pool of a host
* @vhost: ibmvfc host who owns the event pool
* @queue: ibmvfc queue struct
*
**/
static void ibmvfc_free_event_pool(struct ibmvfc_host *vhost,
struct ibmvfc_queue *queue)
{
int i;
struct ibmvfc_event_pool *pool = &queue->evt_pool;
ENTER;
for (i = 0; i < pool->size; ++i) {
list_del(&pool->events[i].queue_list);
BUG_ON(atomic_read(&pool->events[i].free) != 1);
if (pool->events[i].ext_list)
dma_pool_free(vhost->sg_pool,
pool->events[i].ext_list,
pool->events[i].ext_list_token);
}
kfree(pool->events);
dma_free_coherent(vhost->dev,
pool->size * sizeof(*pool->iu_storage),
pool->iu_storage, pool->iu_token);
LEAVE;
}
/**
* ibmvfc_free_queue - Deallocate queue
* @vhost: ibmvfc host struct
* @queue: ibmvfc queue struct
*
* Unmaps dma and deallocates page for messages
**/
static void ibmvfc_free_queue(struct ibmvfc_host *vhost,
struct ibmvfc_queue *queue)
{
struct device *dev = vhost->dev;
dma_unmap_single(dev, queue->msg_token, PAGE_SIZE, DMA_BIDIRECTIONAL);
free_page((unsigned long)queue->msgs.handle);
queue->msgs.handle = NULL;
ibmvfc_free_event_pool(vhost, queue);
}
/**
* ibmvfc_release_crq_queue - Deallocates data and unregisters CRQ
* @vhost: ibmvfc host struct
*
* Frees irq, deallocates a page for messages, unmaps dma, and unregisters
* the crq with the hypervisor.
**/
static void ibmvfc_release_crq_queue(struct ibmvfc_host *vhost)
{
long rc = 0;
struct vio_dev *vdev = to_vio_dev(vhost->dev);
struct ibmvfc_queue *crq = &vhost->crq;
ibmvfc_dbg(vhost, "Releasing CRQ\n");
free_irq(vdev->irq, vhost);
tasklet_kill(&vhost->tasklet);
do {
if (rc)
msleep(100);
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
} while (rc == H_BUSY || H_IS_LONG_BUSY(rc));
vhost->state = IBMVFC_NO_CRQ;
vhost->logged_in = 0;
ibmvfc_free_queue(vhost, crq);
}
/**
* ibmvfc_reenable_crq_queue - reenables the CRQ
* @vhost: ibmvfc host struct
*
* Return value:
* 0 on success / other on failure
**/
static int ibmvfc_reenable_crq_queue(struct ibmvfc_host *vhost)
{
int rc = 0;
struct vio_dev *vdev = to_vio_dev(vhost->dev);
unsigned long flags;
ibmvfc_dereg_sub_crqs(vhost);
/* Re-enable the CRQ */
do {
if (rc)
msleep(100);
rc = plpar_hcall_norets(H_ENABLE_CRQ, vdev->unit_address);
} while (rc == H_IN_PROGRESS || rc == H_BUSY || H_IS_LONG_BUSY(rc));
if (rc)
dev_err(vhost->dev, "Error enabling adapter (rc=%d)\n", rc);
spin_lock_irqsave(vhost->host->host_lock, flags);
spin_lock(vhost->crq.q_lock);
vhost->do_enquiry = 1;
vhost->using_channels = 0;
spin_unlock(vhost->crq.q_lock);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ibmvfc_reg_sub_crqs(vhost);
return rc;
}
/**
* ibmvfc_reset_crq - resets a crq after a failure
* @vhost: ibmvfc host struct
*
* Return value:
* 0 on success / other on failure
**/
static int ibmvfc_reset_crq(struct ibmvfc_host *vhost)
{
int rc = 0;
unsigned long flags;
struct vio_dev *vdev = to_vio_dev(vhost->dev);
struct ibmvfc_queue *crq = &vhost->crq;
ibmvfc_dereg_sub_crqs(vhost);
/* Close the CRQ */
do {
if (rc)
msleep(100);
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
} while (rc == H_BUSY || H_IS_LONG_BUSY(rc));
spin_lock_irqsave(vhost->host->host_lock, flags);
spin_lock(vhost->crq.q_lock);
vhost->state = IBMVFC_NO_CRQ;
vhost->logged_in = 0;
vhost->do_enquiry = 1;
vhost->using_channels = 0;
/* Clean out the queue */
memset(crq->msgs.crq, 0, PAGE_SIZE);
crq->cur = 0;
/* And re-open it again */
rc = plpar_hcall_norets(H_REG_CRQ, vdev->unit_address,
crq->msg_token, PAGE_SIZE);
if (rc == H_CLOSED)
/* Adapter is good, but other end is not ready */
dev_warn(vhost->dev, "Partner adapter not ready\n");
else if (rc != 0)
dev_warn(vhost->dev, "Couldn't register crq (rc=%d)\n", rc);
spin_unlock(vhost->crq.q_lock);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ibmvfc_reg_sub_crqs(vhost);
return rc;
}
/**
* ibmvfc_valid_event - Determines if event is valid.
* @pool: event_pool that contains the event
* @evt: ibmvfc event to be checked for validity
*
* Return value:
* 1 if event is valid / 0 if event is not valid
**/
static int ibmvfc_valid_event(struct ibmvfc_event_pool *pool,
struct ibmvfc_event *evt)
{
int index = evt - pool->events;
if (index < 0 || index >= pool->size) /* outside of bounds */
return 0;
if (evt != pool->events + index) /* unaligned */
return 0;
return 1;
}
/**
* ibmvfc_free_event - Free the specified event
* @evt: ibmvfc_event to be freed
*
**/
static void ibmvfc_free_event(struct ibmvfc_event *evt)
{
struct ibmvfc_event_pool *pool = &evt->queue->evt_pool;
unsigned long flags;
BUG_ON(!ibmvfc_valid_event(pool, evt));
BUG_ON(atomic_inc_return(&evt->free) != 1);
BUG_ON(atomic_dec_and_test(&evt->active));
spin_lock_irqsave(&evt->queue->l_lock, flags);
list_add_tail(&evt->queue_list, &evt->queue->free);
if (evt->eh_comp)
complete(evt->eh_comp);
spin_unlock_irqrestore(&evt->queue->l_lock, flags);
}
/**
* ibmvfc_scsi_eh_done - EH done function for queuecommand commands
* @evt: ibmvfc event struct
*
* This function does not setup any error status, that must be done
* before this function gets called.
**/
static void ibmvfc_scsi_eh_done(struct ibmvfc_event *evt)
{
struct scsi_cmnd *cmnd = evt->cmnd;
if (cmnd) {
scsi_dma_unmap(cmnd);
scsi_done(cmnd);
}
ibmvfc_free_event(evt);
}
/**
* ibmvfc_complete_purge - Complete failed command list
* @purge_list: list head of failed commands
*
* This function runs completions on commands to fail as a result of a
* host reset or platform migration.
**/
static void ibmvfc_complete_purge(struct list_head *purge_list)
{
struct ibmvfc_event *evt, *pos;
list_for_each_entry_safe(evt, pos, purge_list, queue_list) {
list_del(&evt->queue_list);
ibmvfc_trc_end(evt);
evt->done(evt);
}
}
/**
* ibmvfc_fail_request - Fail request with specified error code
* @evt: ibmvfc event struct
* @error_code: error code to fail request with
*
* Return value:
* none
**/
static void ibmvfc_fail_request(struct ibmvfc_event *evt, int error_code)
{
/*
* Anything we are failing should still be active. Otherwise, it
* implies we already got a response for the command and are doing
* something bad like double completing it.
*/
BUG_ON(!atomic_dec_and_test(&evt->active));
if (evt->cmnd) {
evt->cmnd->result = (error_code << 16);
evt->done = ibmvfc_scsi_eh_done;
} else
evt->xfer_iu->mad_common.status = cpu_to_be16(IBMVFC_MAD_DRIVER_FAILED);
del_timer(&evt->timer);
}
/**
* ibmvfc_purge_requests - Our virtual adapter just shut down. Purge any sent requests
* @vhost: ibmvfc host struct
* @error_code: error code to fail requests with
*
* Return value:
* none
**/
static void ibmvfc_purge_requests(struct ibmvfc_host *vhost, int error_code)
{
struct ibmvfc_event *evt, *pos;
struct ibmvfc_queue *queues = vhost->scsi_scrqs.scrqs;
unsigned long flags;
int hwqs = 0;
int i;
if (vhost->using_channels)
hwqs = vhost->scsi_scrqs.active_queues;
ibmvfc_dbg(vhost, "Purging all requests\n");
spin_lock_irqsave(&vhost->crq.l_lock, flags);
list_for_each_entry_safe(evt, pos, &vhost->crq.sent, queue_list)
ibmvfc_fail_request(evt, error_code);
list_splice_init(&vhost->crq.sent, &vhost->purge);
spin_unlock_irqrestore(&vhost->crq.l_lock, flags);
for (i = 0; i < hwqs; i++) {
spin_lock_irqsave(queues[i].q_lock, flags);
spin_lock(&queues[i].l_lock);
list_for_each_entry_safe(evt, pos, &queues[i].sent, queue_list)
ibmvfc_fail_request(evt, error_code);
list_splice_init(&queues[i].sent, &vhost->purge);
spin_unlock(&queues[i].l_lock);
spin_unlock_irqrestore(queues[i].q_lock, flags);
}
}
/**
* ibmvfc_hard_reset_host - Reset the connection to the server by breaking the CRQ
* @vhost: struct ibmvfc host to reset
**/
static void ibmvfc_hard_reset_host(struct ibmvfc_host *vhost)
{
ibmvfc_purge_requests(vhost, DID_ERROR);
ibmvfc_link_down(vhost, IBMVFC_LINK_DOWN);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_RESET);
}
/**
* __ibmvfc_reset_host - Reset the connection to the server (no locking)
* @vhost: struct ibmvfc host to reset
**/
static void __ibmvfc_reset_host(struct ibmvfc_host *vhost)
{
if (vhost->logged_in && vhost->action != IBMVFC_HOST_ACTION_LOGO_WAIT &&
!ibmvfc_set_host_state(vhost, IBMVFC_INITIALIZING)) {
scsi_block_requests(vhost->host);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_LOGO);
vhost->job_step = ibmvfc_npiv_logout;
wake_up(&vhost->work_wait_q);
} else
ibmvfc_hard_reset_host(vhost);
}
/**
* ibmvfc_reset_host - Reset the connection to the server
* @vhost: ibmvfc host struct
**/
static void ibmvfc_reset_host(struct ibmvfc_host *vhost)
{
unsigned long flags;
spin_lock_irqsave(vhost->host->host_lock, flags);
__ibmvfc_reset_host(vhost);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
}
/**
* ibmvfc_retry_host_init - Retry host initialization if allowed
* @vhost: ibmvfc host struct
*
* Returns: 1 if init will be retried / 0 if not
*
**/
static int ibmvfc_retry_host_init(struct ibmvfc_host *vhost)
{
int retry = 0;
if (vhost->action == IBMVFC_HOST_ACTION_INIT_WAIT) {
vhost->delay_init = 1;
if (++vhost->init_retries > IBMVFC_MAX_HOST_INIT_RETRIES) {
dev_err(vhost->dev,
"Host initialization retries exceeded. Taking adapter offline\n");
ibmvfc_link_down(vhost, IBMVFC_HOST_OFFLINE);
} else if (vhost->init_retries == IBMVFC_MAX_HOST_INIT_RETRIES)
__ibmvfc_reset_host(vhost);
else {
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT);
retry = 1;
}
}
wake_up(&vhost->work_wait_q);
return retry;
}
/**
* __ibmvfc_get_target - Find the specified scsi_target (no locking)
* @starget: scsi target struct
*
* Return value:
* ibmvfc_target struct / NULL if not found
**/
static struct ibmvfc_target *__ibmvfc_get_target(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ibmvfc_host *vhost = shost_priv(shost);
struct ibmvfc_target *tgt;
list_for_each_entry(tgt, &vhost->targets, queue)
if (tgt->target_id == starget->id) {
kref_get(&tgt->kref);
return tgt;
}
return NULL;
}
/**
* ibmvfc_get_target - Find the specified scsi_target
* @starget: scsi target struct
*
* Return value:
* ibmvfc_target struct / NULL if not found
**/
static struct ibmvfc_target *ibmvfc_get_target(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ibmvfc_target *tgt;
unsigned long flags;
spin_lock_irqsave(shost->host_lock, flags);
tgt = __ibmvfc_get_target(starget);
spin_unlock_irqrestore(shost->host_lock, flags);
return tgt;
}
/**
* ibmvfc_get_host_speed - Get host port speed
* @shost: scsi host struct
*
* Return value:
* none
**/
static void ibmvfc_get_host_speed(struct Scsi_Host *shost)
{
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags;
spin_lock_irqsave(shost->host_lock, flags);
if (vhost->state == IBMVFC_ACTIVE) {
switch (be64_to_cpu(vhost->login_buf->resp.link_speed) / 100) {
case 1:
fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
break;
case 2:
fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
break;
case 4:
fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
break;
case 8:
fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
break;
case 10:
fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
break;
case 16:
fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
break;
default:
ibmvfc_log(vhost, 3, "Unknown port speed: %lld Gbit\n",
be64_to_cpu(vhost->login_buf->resp.link_speed) / 100);
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
break;
}
} else
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
spin_unlock_irqrestore(shost->host_lock, flags);
}
/**
* ibmvfc_get_host_port_state - Get host port state
* @shost: scsi host struct
*
* Return value:
* none
**/
static void ibmvfc_get_host_port_state(struct Scsi_Host *shost)
{
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags;
spin_lock_irqsave(shost->host_lock, flags);
switch (vhost->state) {
case IBMVFC_INITIALIZING:
case IBMVFC_ACTIVE:
fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
break;
case IBMVFC_LINK_DOWN:
fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
break;
case IBMVFC_LINK_DEAD:
case IBMVFC_HOST_OFFLINE:
fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
break;
case IBMVFC_HALTED:
fc_host_port_state(shost) = FC_PORTSTATE_BLOCKED;
break;
case IBMVFC_NO_CRQ:
fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
break;
default:
ibmvfc_log(vhost, 3, "Unknown port state: %d\n", vhost->state);
fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
break;
}
spin_unlock_irqrestore(shost->host_lock, flags);
}
/**
* ibmvfc_set_rport_dev_loss_tmo - Set rport's device loss timeout
* @rport: rport struct
* @timeout: timeout value
*
* Return value:
* none
**/
static void ibmvfc_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout)
{
if (timeout)
rport->dev_loss_tmo = timeout;
else
rport->dev_loss_tmo = 1;
}
/**
* ibmvfc_release_tgt - Free memory allocated for a target
* @kref: kref struct
*
**/
static void ibmvfc_release_tgt(struct kref *kref)
{
struct ibmvfc_target *tgt = container_of(kref, struct ibmvfc_target, kref);
kfree(tgt);
}
/**
* ibmvfc_get_starget_node_name - Get SCSI target's node name
* @starget: scsi target struct
*
* Return value:
* none
**/
static void ibmvfc_get_starget_node_name(struct scsi_target *starget)
{
struct ibmvfc_target *tgt = ibmvfc_get_target(starget);
fc_starget_port_name(starget) = tgt ? tgt->ids.node_name : 0;
if (tgt)
kref_put(&tgt->kref, ibmvfc_release_tgt);
}
/**
* ibmvfc_get_starget_port_name - Get SCSI target's port name
* @starget: scsi target struct
*
* Return value:
* none
**/
static void ibmvfc_get_starget_port_name(struct scsi_target *starget)
{
struct ibmvfc_target *tgt = ibmvfc_get_target(starget);
fc_starget_port_name(starget) = tgt ? tgt->ids.port_name : 0;
if (tgt)
kref_put(&tgt->kref, ibmvfc_release_tgt);
}
/**
* ibmvfc_get_starget_port_id - Get SCSI target's port ID
* @starget: scsi target struct
*
* Return value:
* none
**/
static void ibmvfc_get_starget_port_id(struct scsi_target *starget)
{
struct ibmvfc_target *tgt = ibmvfc_get_target(starget);
fc_starget_port_id(starget) = tgt ? tgt->scsi_id : -1;
if (tgt)
kref_put(&tgt->kref, ibmvfc_release_tgt);
}
/**
* ibmvfc_wait_while_resetting - Wait while the host resets
* @vhost: ibmvfc host struct
*
* Return value:
* 0 on success / other on failure
**/
static int ibmvfc_wait_while_resetting(struct ibmvfc_host *vhost)
{
long timeout = wait_event_timeout(vhost->init_wait_q,
((vhost->state == IBMVFC_ACTIVE ||
vhost->state == IBMVFC_HOST_OFFLINE ||
vhost->state == IBMVFC_LINK_DEAD) &&
vhost->action == IBMVFC_HOST_ACTION_NONE),
(init_timeout * HZ));
return timeout ? 0 : -EIO;
}
/**
* ibmvfc_issue_fc_host_lip - Re-initiate link initialization
* @shost: scsi host struct
*
* Return value:
* 0 on success / other on failure
**/
static int ibmvfc_issue_fc_host_lip(struct Scsi_Host *shost)
{
struct ibmvfc_host *vhost = shost_priv(shost);
dev_err(vhost->dev, "Initiating host LIP. Resetting connection\n");
ibmvfc_reset_host(vhost);
return ibmvfc_wait_while_resetting(vhost);
}
/**
* ibmvfc_gather_partition_info - Gather info about the LPAR
* @vhost: ibmvfc host struct
*
* Return value:
* none
**/
static void ibmvfc_gather_partition_info(struct ibmvfc_host *vhost)
{
struct device_node *rootdn;
const char *name;
const unsigned int *num;
rootdn = of_find_node_by_path("/");
if (!rootdn)
return;
name = of_get_property(rootdn, "ibm,partition-name", NULL);
if (name)
strncpy(vhost->partition_name, name, sizeof(vhost->partition_name));
num = of_get_property(rootdn, "ibm,partition-no", NULL);
if (num)
vhost->partition_number = *num;
of_node_put(rootdn);
}
/**
* ibmvfc_set_login_info - Setup info for NPIV login
* @vhost: ibmvfc host struct
*
* Return value:
* none
**/
static void ibmvfc_set_login_info(struct ibmvfc_host *vhost)
{
struct ibmvfc_npiv_login *login_info = &vhost->login_info;
struct ibmvfc_queue *async_crq = &vhost->async_crq;
struct device_node *of_node = vhost->dev->of_node;
const char *location;
memset(login_info, 0, sizeof(*login_info));
login_info->ostype = cpu_to_be32(IBMVFC_OS_LINUX);
login_info->max_dma_len = cpu_to_be64(IBMVFC_MAX_SECTORS << 9);
login_info->max_payload = cpu_to_be32(sizeof(struct ibmvfc_fcp_cmd_iu));
login_info->max_response = cpu_to_be32(sizeof(struct ibmvfc_fcp_rsp));
login_info->partition_num = cpu_to_be32(vhost->partition_number);
login_info->vfc_frame_version = cpu_to_be32(1);
login_info->fcp_version = cpu_to_be16(3);
login_info->flags = cpu_to_be16(IBMVFC_FLUSH_ON_HALT);
if (vhost->client_migrated)
login_info->flags |= cpu_to_be16(IBMVFC_CLIENT_MIGRATED);
login_info->max_cmds = cpu_to_be32(max_requests + IBMVFC_NUM_INTERNAL_REQ);
login_info->capabilities = cpu_to_be64(IBMVFC_CAN_MIGRATE | IBMVFC_CAN_SEND_VF_WWPN);
if (vhost->mq_enabled || vhost->using_channels)
login_info->capabilities |= cpu_to_be64(IBMVFC_CAN_USE_CHANNELS);
login_info->async.va = cpu_to_be64(vhost->async_crq.msg_token);
login_info->async.len = cpu_to_be32(async_crq->size *
sizeof(*async_crq->msgs.async));
strncpy(login_info->partition_name, vhost->partition_name, IBMVFC_MAX_NAME);
strncpy(login_info->device_name,
dev_name(&vhost->host->shost_gendev), IBMVFC_MAX_NAME);
location = of_get_property(of_node, "ibm,loc-code", NULL);
location = location ? location : dev_name(vhost->dev);
strncpy(login_info->drc_name, location, IBMVFC_MAX_NAME);
}
/**
* ibmvfc_get_event - Gets the next free event in pool
* @queue: ibmvfc queue struct
*
* Returns a free event from the pool.
**/
static struct ibmvfc_event *ibmvfc_get_event(struct ibmvfc_queue *queue)
{
struct ibmvfc_event *evt;
unsigned long flags;
spin_lock_irqsave(&queue->l_lock, flags);
BUG_ON(list_empty(&queue->free));
evt = list_entry(queue->free.next, struct ibmvfc_event, queue_list);
atomic_set(&evt->free, 0);
list_del(&evt->queue_list);
spin_unlock_irqrestore(&queue->l_lock, flags);
return evt;
}
/**
* ibmvfc_locked_done - Calls evt completion with host_lock held
* @evt: ibmvfc evt to complete
*
* All non-scsi command completion callbacks have the expectation that the
* host_lock is held. This callback is used by ibmvfc_init_event to wrap a
* MAD evt with the host_lock.
**/
static void ibmvfc_locked_done(struct ibmvfc_event *evt)
{
unsigned long flags;
spin_lock_irqsave(evt->vhost->host->host_lock, flags);
evt->_done(evt);
spin_unlock_irqrestore(evt->vhost->host->host_lock, flags);
}
/**
* ibmvfc_init_event - Initialize fields in an event struct that are always
* required.
* @evt: The event
* @done: Routine to call when the event is responded to
* @format: SRP or MAD format
**/
static void ibmvfc_init_event(struct ibmvfc_event *evt,
void (*done) (struct ibmvfc_event *), u8 format)
{
evt->cmnd = NULL;
evt->sync_iu = NULL;
evt->eh_comp = NULL;
evt->crq.format = format;
if (format == IBMVFC_CMD_FORMAT)
evt->done = done;
else {
evt->_done = done;
evt->done = ibmvfc_locked_done;
}
evt->hwq = 0;
}
/**
* ibmvfc_map_sg_list - Initialize scatterlist
* @scmd: scsi command struct
* @nseg: number of scatterlist segments
* @md: memory descriptor list to initialize
**/
static void ibmvfc_map_sg_list(struct scsi_cmnd *scmd, int nseg,
struct srp_direct_buf *md)
{
int i;
struct scatterlist *sg;
scsi_for_each_sg(scmd, sg, nseg, i) {
md[i].va = cpu_to_be64(sg_dma_address(sg));
md[i].len = cpu_to_be32(sg_dma_len(sg));
md[i].key = 0;
}
}
/**
* ibmvfc_map_sg_data - Maps dma for a scatterlist and initializes descriptor fields
* @scmd: struct scsi_cmnd with the scatterlist
* @evt: ibmvfc event struct
* @vfc_cmd: vfc_cmd that contains the memory descriptor
* @dev: device for which to map dma memory
*
* Returns:
* 0 on success / non-zero on failure
**/
static int ibmvfc_map_sg_data(struct scsi_cmnd *scmd,
struct ibmvfc_event *evt,
struct ibmvfc_cmd *vfc_cmd, struct device *dev)
{
int sg_mapped;
struct srp_direct_buf *data = &vfc_cmd->ioba;
struct ibmvfc_host *vhost = dev_get_drvdata(dev);
struct ibmvfc_fcp_cmd_iu *iu = ibmvfc_get_fcp_iu(evt->vhost, vfc_cmd);
if (cls3_error)
vfc_cmd->flags |= cpu_to_be16(IBMVFC_CLASS_3_ERR);
sg_mapped = scsi_dma_map(scmd);
if (!sg_mapped) {
vfc_cmd->flags |= cpu_to_be16(IBMVFC_NO_MEM_DESC);
return 0;
} else if (unlikely(sg_mapped < 0)) {
if (vhost->log_level > IBMVFC_DEFAULT_LOG_LEVEL)
scmd_printk(KERN_ERR, scmd, "Failed to map DMA buffer for command\n");
return sg_mapped;
}
if (scmd->sc_data_direction == DMA_TO_DEVICE) {
vfc_cmd->flags |= cpu_to_be16(IBMVFC_WRITE);
iu->add_cdb_len |= IBMVFC_WRDATA;
} else {
vfc_cmd->flags |= cpu_to_be16(IBMVFC_READ);
iu->add_cdb_len |= IBMVFC_RDDATA;
}
if (sg_mapped == 1) {
ibmvfc_map_sg_list(scmd, sg_mapped, data);
return 0;
}
vfc_cmd->flags |= cpu_to_be16(IBMVFC_SCATTERLIST);
if (!evt->ext_list) {
evt->ext_list = dma_pool_alloc(vhost->sg_pool, GFP_ATOMIC,
&evt->ext_list_token);
if (!evt->ext_list) {
scsi_dma_unmap(scmd);
if (vhost->log_level > IBMVFC_DEFAULT_LOG_LEVEL)
scmd_printk(KERN_ERR, scmd, "Can't allocate memory for scatterlist\n");
return -ENOMEM;
}
}
ibmvfc_map_sg_list(scmd, sg_mapped, evt->ext_list);
data->va = cpu_to_be64(evt->ext_list_token);
data->len = cpu_to_be32(sg_mapped * sizeof(struct srp_direct_buf));
data->key = 0;
return 0;
}
/**
* ibmvfc_timeout - Internal command timeout handler
* @t: struct ibmvfc_event that timed out
*
* Called when an internally generated command times out
**/
static void ibmvfc_timeout(struct timer_list *t)
{
struct ibmvfc_event *evt = from_timer(evt, t, timer);
struct ibmvfc_host *vhost = evt->vhost;
dev_err(vhost->dev, "Command timed out (%p). Resetting connection\n", evt);
ibmvfc_reset_host(vhost);
}
/**
* ibmvfc_send_event - Transforms event to u64 array and calls send_crq()
* @evt: event to be sent
* @vhost: ibmvfc host struct
* @timeout: timeout in seconds - 0 means do not time command
*
* Returns the value returned from ibmvfc_send_crq(). (Zero for success)
**/
static int ibmvfc_send_event(struct ibmvfc_event *evt,
struct ibmvfc_host *vhost, unsigned long timeout)
{
__be64 *crq_as_u64 = (__be64 *) &evt->crq;
unsigned long flags;
int rc;
/* Copy the IU into the transfer area */
*evt->xfer_iu = evt->iu;
if (evt->crq.format == IBMVFC_CMD_FORMAT)
evt->xfer_iu->cmd.tag = cpu_to_be64((u64)evt);
else if (evt->crq.format == IBMVFC_MAD_FORMAT)
evt->xfer_iu->mad_common.tag = cpu_to_be64((u64)evt);
else
BUG();
timer_setup(&evt->timer, ibmvfc_timeout, 0);
if (timeout) {
evt->timer.expires = jiffies + (timeout * HZ);
add_timer(&evt->timer);
}
spin_lock_irqsave(&evt->queue->l_lock, flags);
list_add_tail(&evt->queue_list, &evt->queue->sent);
atomic_set(&evt->active, 1);
mb();
if (evt->queue->fmt == IBMVFC_SUB_CRQ_FMT)
rc = ibmvfc_send_sub_crq(vhost,
evt->queue->vios_cookie,
be64_to_cpu(crq_as_u64[0]),
be64_to_cpu(crq_as_u64[1]),
0, 0);
else
rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]),
be64_to_cpu(crq_as_u64[1]));
if (rc) {
atomic_set(&evt->active, 0);
list_del(&evt->queue_list);
spin_unlock_irqrestore(&evt->queue->l_lock, flags);
del_timer(&evt->timer);
/* If send_crq returns H_CLOSED, return SCSI_MLQUEUE_HOST_BUSY.
* Firmware will send a CRQ with a transport event (0xFF) to
* tell this client what has happened to the transport. This
* will be handled in ibmvfc_handle_crq()
*/
if (rc == H_CLOSED) {
if (printk_ratelimit())
dev_warn(vhost->dev, "Send warning. Receive queue closed, will retry.\n");
if (evt->cmnd)
scsi_dma_unmap(evt->cmnd);
ibmvfc_free_event(evt);
return SCSI_MLQUEUE_HOST_BUSY;
}
dev_err(vhost->dev, "Send error (rc=%d)\n", rc);
if (evt->cmnd) {
evt->cmnd->result = DID_ERROR << 16;
evt->done = ibmvfc_scsi_eh_done;
} else
evt->xfer_iu->mad_common.status = cpu_to_be16(IBMVFC_MAD_CRQ_ERROR);
evt->done(evt);
} else {
spin_unlock_irqrestore(&evt->queue->l_lock, flags);
ibmvfc_trc_start(evt);
}
return 0;
}
/**
* ibmvfc_log_error - Log an error for the failed command if appropriate
* @evt: ibmvfc event to log
*
**/
static void ibmvfc_log_error(struct ibmvfc_event *evt)
{
struct ibmvfc_cmd *vfc_cmd = &evt->xfer_iu->cmd;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_fcp_rsp *rsp = ibmvfc_get_fcp_rsp(vhost, vfc_cmd);
struct scsi_cmnd *cmnd = evt->cmnd;
const char *err = unknown_error;
int index = ibmvfc_get_err_index(be16_to_cpu(vfc_cmd->status), be16_to_cpu(vfc_cmd->error));
int logerr = 0;
int rsp_code = 0;
if (index >= 0) {
logerr = cmd_status[index].log;
err = cmd_status[index].name;
}
if (!logerr && (vhost->log_level <= (IBMVFC_DEFAULT_LOG_LEVEL + 1)))
return;
if (rsp->flags & FCP_RSP_LEN_VALID)
rsp_code = rsp->data.info.rsp_code;
scmd_printk(KERN_ERR, cmnd, "Command (%02X) : %s (%x:%x) "
"flags: %x fcp_rsp: %x, resid=%d, scsi_status: %x\n",
cmnd->cmnd[0], err, be16_to_cpu(vfc_cmd->status), be16_to_cpu(vfc_cmd->error),
rsp->flags, rsp_code, scsi_get_resid(cmnd), rsp->scsi_status);
}
/**
* ibmvfc_relogin - Log back into the specified device
* @sdev: scsi device struct
*
**/
static void ibmvfc_relogin(struct scsi_device *sdev)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct ibmvfc_target *tgt;
unsigned long flags;
spin_lock_irqsave(vhost->host->host_lock, flags);
list_for_each_entry(tgt, &vhost->targets, queue) {
if (rport == tgt->rport) {
ibmvfc_del_tgt(tgt);
break;
}
}
ibmvfc_reinit_host(vhost);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
}
/**
* ibmvfc_scsi_done - Handle responses from commands
* @evt: ibmvfc event to be handled
*
* Used as a callback when sending scsi cmds.
**/
static void ibmvfc_scsi_done(struct ibmvfc_event *evt)
{
struct ibmvfc_cmd *vfc_cmd = &evt->xfer_iu->cmd;
struct ibmvfc_fcp_rsp *rsp = ibmvfc_get_fcp_rsp(evt->vhost, vfc_cmd);
struct scsi_cmnd *cmnd = evt->cmnd;
u32 rsp_len = 0;
u32 sense_len = be32_to_cpu(rsp->fcp_sense_len);
if (cmnd) {
if (be16_to_cpu(vfc_cmd->response_flags) & IBMVFC_ADAPTER_RESID_VALID)
scsi_set_resid(cmnd, be32_to_cpu(vfc_cmd->adapter_resid));
else if (rsp->flags & FCP_RESID_UNDER)
scsi_set_resid(cmnd, be32_to_cpu(rsp->fcp_resid));
else
scsi_set_resid(cmnd, 0);
if (vfc_cmd->status) {
cmnd->result = ibmvfc_get_err_result(evt->vhost, vfc_cmd);
if (rsp->flags & FCP_RSP_LEN_VALID)
rsp_len = be32_to_cpu(rsp->fcp_rsp_len);
if ((sense_len + rsp_len) > SCSI_SENSE_BUFFERSIZE)
sense_len = SCSI_SENSE_BUFFERSIZE - rsp_len;
if ((rsp->flags & FCP_SNS_LEN_VALID) && rsp->fcp_sense_len && rsp_len <= 8)
memcpy(cmnd->sense_buffer, rsp->data.sense + rsp_len, sense_len);
if ((be16_to_cpu(vfc_cmd->status) & IBMVFC_VIOS_FAILURE) &&
(be16_to_cpu(vfc_cmd->error) == IBMVFC_PLOGI_REQUIRED))
ibmvfc_relogin(cmnd->device);
if (!cmnd->result && (!scsi_get_resid(cmnd) || (rsp->flags & FCP_RESID_OVER)))
cmnd->result = (DID_ERROR << 16);
ibmvfc_log_error(evt);
}
if (!cmnd->result &&
(scsi_bufflen(cmnd) - scsi_get_resid(cmnd) < cmnd->underflow))
cmnd->result = (DID_ERROR << 16);
scsi_dma_unmap(cmnd);
scsi_done(cmnd);
}
ibmvfc_free_event(evt);
}
/**
* ibmvfc_host_chkready - Check if the host can accept commands
* @vhost: struct ibmvfc host
*
* Returns:
* 1 if host can accept command / 0 if not
**/
static inline int ibmvfc_host_chkready(struct ibmvfc_host *vhost)
{
int result = 0;
switch (vhost->state) {
case IBMVFC_LINK_DEAD:
case IBMVFC_HOST_OFFLINE:
result = DID_NO_CONNECT << 16;
break;
case IBMVFC_NO_CRQ:
case IBMVFC_INITIALIZING:
case IBMVFC_HALTED:
case IBMVFC_LINK_DOWN:
result = DID_REQUEUE << 16;
break;
case IBMVFC_ACTIVE:
result = 0;
break;
}
return result;
}
static struct ibmvfc_cmd *ibmvfc_init_vfc_cmd(struct ibmvfc_event *evt, struct scsi_device *sdev)
{
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_cmd *vfc_cmd = &evt->iu.cmd;
struct ibmvfc_fcp_cmd_iu *iu = ibmvfc_get_fcp_iu(vhost, vfc_cmd);
struct ibmvfc_fcp_rsp *rsp = ibmvfc_get_fcp_rsp(vhost, vfc_cmd);
size_t offset;
memset(vfc_cmd, 0, sizeof(*vfc_cmd));
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
offset = offsetof(struct ibmvfc_cmd, v2.rsp);
vfc_cmd->target_wwpn = cpu_to_be64(rport->port_name);
} else
offset = offsetof(struct ibmvfc_cmd, v1.rsp);
vfc_cmd->resp.va = cpu_to_be64(be64_to_cpu(evt->crq.ioba) + offset);
vfc_cmd->resp.len = cpu_to_be32(sizeof(*rsp));
vfc_cmd->frame_type = cpu_to_be32(IBMVFC_SCSI_FCP_TYPE);
vfc_cmd->payload_len = cpu_to_be32(sizeof(*iu));
vfc_cmd->resp_len = cpu_to_be32(sizeof(*rsp));
vfc_cmd->cancel_key = cpu_to_be32((unsigned long)sdev->hostdata);
vfc_cmd->tgt_scsi_id = cpu_to_be64(rport->port_id);
int_to_scsilun(sdev->lun, &iu->lun);
return vfc_cmd;
}
/**
* ibmvfc_queuecommand - The queuecommand function of the scsi template
* @shost: scsi host struct
* @cmnd: struct scsi_cmnd to be executed
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
{
struct ibmvfc_host *vhost = shost_priv(shost);
struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
struct ibmvfc_cmd *vfc_cmd;
struct ibmvfc_fcp_cmd_iu *iu;
struct ibmvfc_event *evt;
u32 tag_and_hwq = blk_mq_unique_tag(scsi_cmd_to_rq(cmnd));
u16 hwq = blk_mq_unique_tag_to_hwq(tag_and_hwq);
u16 scsi_channel;
int rc;
if (unlikely((rc = fc_remote_port_chkready(rport))) ||
unlikely((rc = ibmvfc_host_chkready(vhost)))) {
cmnd->result = rc;
scsi_done(cmnd);
return 0;
}
cmnd->result = (DID_OK << 16);
if (vhost->using_channels) {
scsi_channel = hwq % vhost->scsi_scrqs.active_queues;
evt = ibmvfc_get_event(&vhost->scsi_scrqs.scrqs[scsi_channel]);
evt->hwq = hwq % vhost->scsi_scrqs.active_queues;
} else
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_scsi_done, IBMVFC_CMD_FORMAT);
evt->cmnd = cmnd;
vfc_cmd = ibmvfc_init_vfc_cmd(evt, cmnd->device);
iu = ibmvfc_get_fcp_iu(vhost, vfc_cmd);
iu->xfer_len = cpu_to_be32(scsi_bufflen(cmnd));
memcpy(iu->cdb, cmnd->cmnd, cmnd->cmd_len);
if (cmnd->flags & SCMD_TAGGED) {
vfc_cmd->task_tag = cpu_to_be64(scsi_cmd_to_rq(cmnd)->tag);
iu->pri_task_attr = IBMVFC_SIMPLE_TASK;
}
vfc_cmd->correlation = cpu_to_be64((u64)evt);
if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev))))
return ibmvfc_send_event(evt, vhost, 0);
ibmvfc_free_event(evt);
if (rc == -ENOMEM)
return SCSI_MLQUEUE_HOST_BUSY;
if (vhost->log_level > IBMVFC_DEFAULT_LOG_LEVEL)
scmd_printk(KERN_ERR, cmnd,
"Failed to map DMA buffer for command. rc=%d\n", rc);
cmnd->result = DID_ERROR << 16;
scsi_done(cmnd);
return 0;
}
/**
* ibmvfc_sync_completion - Signal that a synchronous command has completed
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_sync_completion(struct ibmvfc_event *evt)
{
/* copy the response back */
if (evt->sync_iu)
*evt->sync_iu = *evt->xfer_iu;
complete(&evt->comp);
}
/**
* ibmvfc_bsg_timeout_done - Completion handler for cancelling BSG commands
* @evt: struct ibmvfc_event
*
**/
static void ibmvfc_bsg_timeout_done(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
ibmvfc_free_event(evt);
vhost->aborting_passthru = 0;
dev_info(vhost->dev, "Passthru command cancelled\n");
}
/**
* ibmvfc_bsg_timeout - Handle a BSG timeout
* @job: struct bsg_job that timed out
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_bsg_timeout(struct bsg_job *job)
{
struct ibmvfc_host *vhost = shost_priv(fc_bsg_to_shost(job));
unsigned long port_id = (unsigned long)job->dd_data;
struct ibmvfc_event *evt;
struct ibmvfc_tmf *tmf;
unsigned long flags;
int rc;
ENTER;
spin_lock_irqsave(vhost->host->host_lock, flags);
if (vhost->aborting_passthru || vhost->state != IBMVFC_ACTIVE) {
__ibmvfc_reset_host(vhost);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return 0;
}
vhost->aborting_passthru = 1;
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_bsg_timeout_done, IBMVFC_MAD_FORMAT);
tmf = &evt->iu.tmf;
memset(tmf, 0, sizeof(*tmf));
tmf->common.version = cpu_to_be32(1);
tmf->common.opcode = cpu_to_be32(IBMVFC_TMF_MAD);
tmf->common.length = cpu_to_be16(sizeof(*tmf));
tmf->scsi_id = cpu_to_be64(port_id);
tmf->cancel_key = cpu_to_be32(IBMVFC_PASSTHRU_CANCEL_KEY);
tmf->my_cancel_key = cpu_to_be32(IBMVFC_INTERNAL_CANCEL_KEY);
rc = ibmvfc_send_event(evt, vhost, default_timeout);
if (rc != 0) {
vhost->aborting_passthru = 0;
dev_err(vhost->dev, "Failed to send cancel event. rc=%d\n", rc);
rc = -EIO;
} else
dev_info(vhost->dev, "Cancelling passthru command to port id 0x%lx\n",
port_id);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
LEAVE;
return rc;
}
/**
* ibmvfc_bsg_plogi - PLOGI into a target to handle a BSG command
* @vhost: struct ibmvfc_host to send command
* @port_id: port ID to send command
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_bsg_plogi(struct ibmvfc_host *vhost, unsigned int port_id)
{
struct ibmvfc_port_login *plogi;
struct ibmvfc_target *tgt;
struct ibmvfc_event *evt;
union ibmvfc_iu rsp_iu;
unsigned long flags;
int rc = 0, issue_login = 1;
ENTER;
spin_lock_irqsave(vhost->host->host_lock, flags);
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->scsi_id == port_id) {
issue_login = 0;
break;
}
}
if (!issue_login)
goto unlock_out;
if (unlikely((rc = ibmvfc_host_chkready(vhost))))
goto unlock_out;
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_MAD_FORMAT);
plogi = &evt->iu.plogi;
memset(plogi, 0, sizeof(*plogi));
plogi->common.version = cpu_to_be32(1);
plogi->common.opcode = cpu_to_be32(IBMVFC_PORT_LOGIN);
plogi->common.length = cpu_to_be16(sizeof(*plogi));
plogi->scsi_id = cpu_to_be64(port_id);
evt->sync_iu = &rsp_iu;
init_completion(&evt->comp);
rc = ibmvfc_send_event(evt, vhost, default_timeout);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (rc)
return -EIO;
wait_for_completion(&evt->comp);
if (rsp_iu.plogi.common.status)
rc = -EIO;
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_free_event(evt);
unlock_out:
spin_unlock_irqrestore(vhost->host->host_lock, flags);
LEAVE;
return rc;
}
/**
* ibmvfc_bsg_request - Handle a BSG request
* @job: struct bsg_job to be executed
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_bsg_request(struct bsg_job *job)
{
struct ibmvfc_host *vhost = shost_priv(fc_bsg_to_shost(job));
struct fc_rport *rport = fc_bsg_to_rport(job);
struct ibmvfc_passthru_mad *mad;
struct ibmvfc_event *evt;
union ibmvfc_iu rsp_iu;
unsigned long flags, port_id = -1;
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
unsigned int code = bsg_request->msgcode;
int rc = 0, req_seg, rsp_seg, issue_login = 0;
u32 fc_flags, rsp_len;
ENTER;
bsg_reply->reply_payload_rcv_len = 0;
if (rport)
port_id = rport->port_id;
switch (code) {
case FC_BSG_HST_ELS_NOLOGIN:
port_id = (bsg_request->rqst_data.h_els.port_id[0] << 16) |
(bsg_request->rqst_data.h_els.port_id[1] << 8) |
bsg_request->rqst_data.h_els.port_id[2];
fallthrough;
case FC_BSG_RPT_ELS:
fc_flags = IBMVFC_FC_ELS;
break;
case FC_BSG_HST_CT:
issue_login = 1;
port_id = (bsg_request->rqst_data.h_ct.port_id[0] << 16) |
(bsg_request->rqst_data.h_ct.port_id[1] << 8) |
bsg_request->rqst_data.h_ct.port_id[2];
fallthrough;
case FC_BSG_RPT_CT:
fc_flags = IBMVFC_FC_CT_IU;
break;
default:
return -ENOTSUPP;
}
if (port_id == -1)
return -EINVAL;
if (!mutex_trylock(&vhost->passthru_mutex))
return -EBUSY;
job->dd_data = (void *)port_id;
req_seg = dma_map_sg(vhost->dev, job->request_payload.sg_list,
job->request_payload.sg_cnt, DMA_TO_DEVICE);
if (!req_seg) {
mutex_unlock(&vhost->passthru_mutex);
return -ENOMEM;
}
rsp_seg = dma_map_sg(vhost->dev, job->reply_payload.sg_list,
job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
if (!rsp_seg) {
dma_unmap_sg(vhost->dev, job->request_payload.sg_list,
job->request_payload.sg_cnt, DMA_TO_DEVICE);
mutex_unlock(&vhost->passthru_mutex);
return -ENOMEM;
}
if (req_seg > 1 || rsp_seg > 1) {
rc = -EINVAL;
goto out;
}
if (issue_login)
rc = ibmvfc_bsg_plogi(vhost, port_id);
spin_lock_irqsave(vhost->host->host_lock, flags);
if (unlikely(rc || (rport && (rc = fc_remote_port_chkready(rport)))) ||
unlikely((rc = ibmvfc_host_chkready(vhost)))) {
spin_unlock_irqrestore(vhost->host->host_lock, flags);
goto out;
}
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_MAD_FORMAT);
mad = &evt->iu.passthru;
memset(mad, 0, sizeof(*mad));
mad->common.version = cpu_to_be32(1);
mad->common.opcode = cpu_to_be32(IBMVFC_PASSTHRU);
mad->common.length = cpu_to_be16(sizeof(*mad) - sizeof(mad->fc_iu) - sizeof(mad->iu));
mad->cmd_ioba.va = cpu_to_be64(be64_to_cpu(evt->crq.ioba) +
offsetof(struct ibmvfc_passthru_mad, iu));
mad->cmd_ioba.len = cpu_to_be32(sizeof(mad->iu));
mad->iu.cmd_len = cpu_to_be32(job->request_payload.payload_len);
mad->iu.rsp_len = cpu_to_be32(job->reply_payload.payload_len);
mad->iu.flags = cpu_to_be32(fc_flags);
mad->iu.cancel_key = cpu_to_be32(IBMVFC_PASSTHRU_CANCEL_KEY);
mad->iu.cmd.va = cpu_to_be64(sg_dma_address(job->request_payload.sg_list));
mad->iu.cmd.len = cpu_to_be32(sg_dma_len(job->request_payload.sg_list));
mad->iu.rsp.va = cpu_to_be64(sg_dma_address(job->reply_payload.sg_list));
mad->iu.rsp.len = cpu_to_be32(sg_dma_len(job->reply_payload.sg_list));
mad->iu.scsi_id = cpu_to_be64(port_id);
mad->iu.tag = cpu_to_be64((u64)evt);
rsp_len = be32_to_cpu(mad->iu.rsp.len);
evt->sync_iu = &rsp_iu;
init_completion(&evt->comp);
rc = ibmvfc_send_event(evt, vhost, 0);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (rc) {
rc = -EIO;
goto out;
}
wait_for_completion(&evt->comp);
if (rsp_iu.passthru.common.status)
rc = -EIO;
else
bsg_reply->reply_payload_rcv_len = rsp_len;
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_free_event(evt);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
bsg_reply->result = rc;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
rc = 0;
out:
dma_unmap_sg(vhost->dev, job->request_payload.sg_list,
job->request_payload.sg_cnt, DMA_TO_DEVICE);
dma_unmap_sg(vhost->dev, job->reply_payload.sg_list,
job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
mutex_unlock(&vhost->passthru_mutex);
LEAVE;
return rc;
}
/**
* ibmvfc_reset_device - Reset the device with the specified reset type
* @sdev: scsi device to reset
* @type: reset type
* @desc: reset type description for log messages
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_reset_device(struct scsi_device *sdev, int type, char *desc)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct ibmvfc_cmd *tmf;
struct ibmvfc_event *evt = NULL;
union ibmvfc_iu rsp_iu;
struct ibmvfc_fcp_cmd_iu *iu;
struct ibmvfc_fcp_rsp *fc_rsp = ibmvfc_get_fcp_rsp(vhost, &rsp_iu.cmd);
int rsp_rc = -EBUSY;
unsigned long flags;
int rsp_code = 0;
spin_lock_irqsave(vhost->host->host_lock, flags);
if (vhost->state == IBMVFC_ACTIVE) {
if (vhost->using_channels)
evt = ibmvfc_get_event(&vhost->scsi_scrqs.scrqs[0]);
else
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_CMD_FORMAT);
tmf = ibmvfc_init_vfc_cmd(evt, sdev);
iu = ibmvfc_get_fcp_iu(vhost, tmf);
tmf->flags = cpu_to_be16((IBMVFC_NO_MEM_DESC | IBMVFC_TMF));
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN))
tmf->target_wwpn = cpu_to_be64(rport->port_name);
iu->tmf_flags = type;
evt->sync_iu = &rsp_iu;
init_completion(&evt->comp);
rsp_rc = ibmvfc_send_event(evt, vhost, default_timeout);
}
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (rsp_rc != 0) {
sdev_printk(KERN_ERR, sdev, "Failed to send %s reset event. rc=%d\n",
desc, rsp_rc);
return -EIO;
}
sdev_printk(KERN_INFO, sdev, "Resetting %s\n", desc);
wait_for_completion(&evt->comp);
if (rsp_iu.cmd.status)
rsp_code = ibmvfc_get_err_result(vhost, &rsp_iu.cmd);
if (rsp_code) {
if (fc_rsp->flags & FCP_RSP_LEN_VALID)
rsp_code = fc_rsp->data.info.rsp_code;
sdev_printk(KERN_ERR, sdev, "%s reset failed: %s (%x:%x) "
"flags: %x fcp_rsp: %x, scsi_status: %x\n", desc,
ibmvfc_get_cmd_error(be16_to_cpu(rsp_iu.cmd.status), be16_to_cpu(rsp_iu.cmd.error)),
be16_to_cpu(rsp_iu.cmd.status), be16_to_cpu(rsp_iu.cmd.error), fc_rsp->flags, rsp_code,
fc_rsp->scsi_status);
rsp_rc = -EIO;
} else
sdev_printk(KERN_INFO, sdev, "%s reset successful\n", desc);
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_free_event(evt);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return rsp_rc;
}
/**
* ibmvfc_match_rport - Match function for specified remote port
* @evt: ibmvfc event struct
* @rport: device to match
*
* Returns:
* 1 if event matches rport / 0 if event does not match rport
**/
static int ibmvfc_match_rport(struct ibmvfc_event *evt, void *rport)
{
struct fc_rport *cmd_rport;
if (evt->cmnd) {
cmd_rport = starget_to_rport(scsi_target(evt->cmnd->device));
if (cmd_rport == rport)
return 1;
}
return 0;
}
/**
* ibmvfc_match_target - Match function for specified target
* @evt: ibmvfc event struct
* @device: device to match (starget)
*
* Returns:
* 1 if event matches starget / 0 if event does not match starget
**/
static int ibmvfc_match_target(struct ibmvfc_event *evt, void *device)
{
if (evt->cmnd && scsi_target(evt->cmnd->device) == device)
return 1;
return 0;
}
/**
* ibmvfc_match_lun - Match function for specified LUN
* @evt: ibmvfc event struct
* @device: device to match (sdev)
*
* Returns:
* 1 if event matches sdev / 0 if event does not match sdev
**/
static int ibmvfc_match_lun(struct ibmvfc_event *evt, void *device)
{
if (evt->cmnd && evt->cmnd->device == device)
return 1;
return 0;
}
/**
* ibmvfc_event_is_free - Check if event is free or not
* @evt: ibmvfc event struct
*
* Returns:
* true / false
**/
static bool ibmvfc_event_is_free(struct ibmvfc_event *evt)
{
struct ibmvfc_event *loop_evt;
list_for_each_entry(loop_evt, &evt->queue->free, queue_list)
if (loop_evt == evt)
return true;
return false;
}
/**
* ibmvfc_wait_for_ops - Wait for ops to complete
* @vhost: ibmvfc host struct
* @device: device to match (starget or sdev)
* @match: match function
*
* Returns:
* SUCCESS / FAILED
**/
static int ibmvfc_wait_for_ops(struct ibmvfc_host *vhost, void *device,
int (*match) (struct ibmvfc_event *, void *))
{
struct ibmvfc_event *evt;
DECLARE_COMPLETION_ONSTACK(comp);
int wait, i, q_index, q_size;
unsigned long flags;
signed long timeout = IBMVFC_ABORT_WAIT_TIMEOUT * HZ;
struct ibmvfc_queue *queues;
ENTER;
if (vhost->mq_enabled && vhost->using_channels) {
queues = vhost->scsi_scrqs.scrqs;
q_size = vhost->scsi_scrqs.active_queues;
} else {
queues = &vhost->crq;
q_size = 1;
}
do {
wait = 0;
spin_lock_irqsave(vhost->host->host_lock, flags);
for (q_index = 0; q_index < q_size; q_index++) {
spin_lock(&queues[q_index].l_lock);
for (i = 0; i < queues[q_index].evt_pool.size; i++) {
evt = &queues[q_index].evt_pool.events[i];
if (!ibmvfc_event_is_free(evt)) {
if (match(evt, device)) {
evt->eh_comp = ∁
wait++;
}
}
}
spin_unlock(&queues[q_index].l_lock);
}
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (wait) {
timeout = wait_for_completion_timeout(&comp, timeout);
if (!timeout) {
wait = 0;
spin_lock_irqsave(vhost->host->host_lock, flags);
for (q_index = 0; q_index < q_size; q_index++) {
spin_lock(&queues[q_index].l_lock);
for (i = 0; i < queues[q_index].evt_pool.size; i++) {
evt = &queues[q_index].evt_pool.events[i];
if (!ibmvfc_event_is_free(evt)) {
if (match(evt, device)) {
evt->eh_comp = NULL;
wait++;
}
}
}
spin_unlock(&queues[q_index].l_lock);
}
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (wait)
dev_err(vhost->dev, "Timed out waiting for aborted commands\n");
LEAVE;
return wait ? FAILED : SUCCESS;
}
}
} while (wait);
LEAVE;
return SUCCESS;
}
static struct ibmvfc_event *ibmvfc_init_tmf(struct ibmvfc_queue *queue,
struct scsi_device *sdev,
int type)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
struct scsi_target *starget = scsi_target(sdev);
struct fc_rport *rport = starget_to_rport(starget);
struct ibmvfc_event *evt;
struct ibmvfc_tmf *tmf;
evt = ibmvfc_get_event(queue);
ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_MAD_FORMAT);
tmf = &evt->iu.tmf;
memset(tmf, 0, sizeof(*tmf));
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
tmf->common.version = cpu_to_be32(2);
tmf->target_wwpn = cpu_to_be64(rport->port_name);
} else {
tmf->common.version = cpu_to_be32(1);
}
tmf->common.opcode = cpu_to_be32(IBMVFC_TMF_MAD);
tmf->common.length = cpu_to_be16(sizeof(*tmf));
tmf->scsi_id = cpu_to_be64(rport->port_id);
int_to_scsilun(sdev->lun, &tmf->lun);
if (!ibmvfc_check_caps(vhost, IBMVFC_CAN_SUPPRESS_ABTS))
type &= ~IBMVFC_TMF_SUPPRESS_ABTS;
if (vhost->state == IBMVFC_ACTIVE)
tmf->flags = cpu_to_be32((type | IBMVFC_TMF_LUA_VALID));
else
tmf->flags = cpu_to_be32(((type & IBMVFC_TMF_SUPPRESS_ABTS) | IBMVFC_TMF_LUA_VALID));
tmf->cancel_key = cpu_to_be32((unsigned long)sdev->hostdata);
tmf->my_cancel_key = cpu_to_be32((unsigned long)starget->hostdata);
init_completion(&evt->comp);
return evt;
}
static int ibmvfc_cancel_all_mq(struct scsi_device *sdev, int type)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
struct ibmvfc_event *evt, *found_evt, *temp;
struct ibmvfc_queue *queues = vhost->scsi_scrqs.scrqs;
unsigned long flags;
int num_hwq, i;
int fail = 0;
LIST_HEAD(cancelq);
u16 status;
ENTER;
spin_lock_irqsave(vhost->host->host_lock, flags);
num_hwq = vhost->scsi_scrqs.active_queues;
for (i = 0; i < num_hwq; i++) {
spin_lock(queues[i].q_lock);
spin_lock(&queues[i].l_lock);
found_evt = NULL;
list_for_each_entry(evt, &queues[i].sent, queue_list) {
if (evt->cmnd && evt->cmnd->device == sdev) {
found_evt = evt;
break;
}
}
spin_unlock(&queues[i].l_lock);
if (found_evt && vhost->logged_in) {
evt = ibmvfc_init_tmf(&queues[i], sdev, type);
evt->sync_iu = &queues[i].cancel_rsp;
ibmvfc_send_event(evt, vhost, default_timeout);
list_add_tail(&evt->cancel, &cancelq);
}
spin_unlock(queues[i].q_lock);
}
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (list_empty(&cancelq)) {
if (vhost->log_level > IBMVFC_DEFAULT_LOG_LEVEL)
sdev_printk(KERN_INFO, sdev, "No events found to cancel\n");
return 0;
}
sdev_printk(KERN_INFO, sdev, "Cancelling outstanding commands.\n");
list_for_each_entry_safe(evt, temp, &cancelq, cancel) {
wait_for_completion(&evt->comp);
status = be16_to_cpu(evt->queue->cancel_rsp.mad_common.status);
list_del(&evt->cancel);
ibmvfc_free_event(evt);
if (status != IBMVFC_MAD_SUCCESS) {
sdev_printk(KERN_WARNING, sdev, "Cancel failed with rc=%x\n", status);
switch (status) {
case IBMVFC_MAD_DRIVER_FAILED:
case IBMVFC_MAD_CRQ_ERROR:
/* Host adapter most likely going through reset, return success to
* the caller will wait for the command being cancelled to get returned
*/
break;
default:
fail = 1;
break;
}
}
}
if (fail)
return -EIO;
sdev_printk(KERN_INFO, sdev, "Successfully cancelled outstanding commands\n");
LEAVE;
return 0;
}
static int ibmvfc_cancel_all_sq(struct scsi_device *sdev, int type)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
struct ibmvfc_event *evt, *found_evt;
union ibmvfc_iu rsp;
int rsp_rc = -EBUSY;
unsigned long flags;
u16 status;
ENTER;
found_evt = NULL;
spin_lock_irqsave(vhost->host->host_lock, flags);
spin_lock(&vhost->crq.l_lock);
list_for_each_entry(evt, &vhost->crq.sent, queue_list) {
if (evt->cmnd && evt->cmnd->device == sdev) {
found_evt = evt;
break;
}
}
spin_unlock(&vhost->crq.l_lock);
if (!found_evt) {
if (vhost->log_level > IBMVFC_DEFAULT_LOG_LEVEL)
sdev_printk(KERN_INFO, sdev, "No events found to cancel\n");
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return 0;
}
if (vhost->logged_in) {
evt = ibmvfc_init_tmf(&vhost->crq, sdev, type);
evt->sync_iu = &rsp;
rsp_rc = ibmvfc_send_event(evt, vhost, default_timeout);
}
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (rsp_rc != 0) {
sdev_printk(KERN_ERR, sdev, "Failed to send cancel event. rc=%d\n", rsp_rc);
/* If failure is received, the host adapter is most likely going
through reset, return success so the caller will wait for the command
being cancelled to get returned */
return 0;
}
sdev_printk(KERN_INFO, sdev, "Cancelling outstanding commands.\n");
wait_for_completion(&evt->comp);
status = be16_to_cpu(rsp.mad_common.status);
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_free_event(evt);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (status != IBMVFC_MAD_SUCCESS) {
sdev_printk(KERN_WARNING, sdev, "Cancel failed with rc=%x\n", status);
switch (status) {
case IBMVFC_MAD_DRIVER_FAILED:
case IBMVFC_MAD_CRQ_ERROR:
/* Host adapter most likely going through reset, return success to
the caller will wait for the command being cancelled to get returned */
return 0;
default:
return -EIO;
};
}
sdev_printk(KERN_INFO, sdev, "Successfully cancelled outstanding commands\n");
return 0;
}
/**
* ibmvfc_cancel_all - Cancel all outstanding commands to the device
* @sdev: scsi device to cancel commands
* @type: type of error recovery being performed
*
* This sends a cancel to the VIOS for the specified device. This does
* NOT send any abort to the actual device. That must be done separately.
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_cancel_all(struct scsi_device *sdev, int type)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
if (vhost->mq_enabled && vhost->using_channels)
return ibmvfc_cancel_all_mq(sdev, type);
else
return ibmvfc_cancel_all_sq(sdev, type);
}
/**
* ibmvfc_match_key - Match function for specified cancel key
* @evt: ibmvfc event struct
* @key: cancel key to match
*
* Returns:
* 1 if event matches key / 0 if event does not match key
**/
static int ibmvfc_match_key(struct ibmvfc_event *evt, void *key)
{
unsigned long cancel_key = (unsigned long)key;
if (evt->crq.format == IBMVFC_CMD_FORMAT &&
be32_to_cpu(evt->iu.cmd.cancel_key) == cancel_key)
return 1;
return 0;
}
/**
* ibmvfc_match_evt - Match function for specified event
* @evt: ibmvfc event struct
* @match: event to match
*
* Returns:
* 1 if event matches key / 0 if event does not match key
**/
static int ibmvfc_match_evt(struct ibmvfc_event *evt, void *match)
{
if (evt == match)
return 1;
return 0;
}
/**
* ibmvfc_abort_task_set - Abort outstanding commands to the device
* @sdev: scsi device to abort commands
*
* This sends an Abort Task Set to the VIOS for the specified device. This does
* NOT send any cancel to the VIOS. That must be done separately.
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_abort_task_set(struct scsi_device *sdev)
{
struct ibmvfc_host *vhost = shost_priv(sdev->host);
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct ibmvfc_cmd *tmf;
struct ibmvfc_event *evt, *found_evt;
union ibmvfc_iu rsp_iu;
struct ibmvfc_fcp_cmd_iu *iu;
struct ibmvfc_fcp_rsp *fc_rsp = ibmvfc_get_fcp_rsp(vhost, &rsp_iu.cmd);
int rc, rsp_rc = -EBUSY;
unsigned long flags, timeout = IBMVFC_ABORT_TIMEOUT;
int rsp_code = 0;
found_evt = NULL;
spin_lock_irqsave(vhost->host->host_lock, flags);
spin_lock(&vhost->crq.l_lock);
list_for_each_entry(evt, &vhost->crq.sent, queue_list) {
if (evt->cmnd && evt->cmnd->device == sdev) {
found_evt = evt;
break;
}
}
spin_unlock(&vhost->crq.l_lock);
if (!found_evt) {
if (vhost->log_level > IBMVFC_DEFAULT_LOG_LEVEL)
sdev_printk(KERN_INFO, sdev, "No events found to abort\n");
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return 0;
}
if (vhost->state == IBMVFC_ACTIVE) {
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_CMD_FORMAT);
tmf = ibmvfc_init_vfc_cmd(evt, sdev);
iu = ibmvfc_get_fcp_iu(vhost, tmf);
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN))
tmf->target_wwpn = cpu_to_be64(rport->port_name);
iu->tmf_flags = IBMVFC_ABORT_TASK_SET;
tmf->flags = cpu_to_be16((IBMVFC_NO_MEM_DESC | IBMVFC_TMF));
evt->sync_iu = &rsp_iu;
tmf->correlation = cpu_to_be64((u64)evt);
init_completion(&evt->comp);
rsp_rc = ibmvfc_send_event(evt, vhost, default_timeout);
}
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (rsp_rc != 0) {
sdev_printk(KERN_ERR, sdev, "Failed to send abort. rc=%d\n", rsp_rc);
return -EIO;
}
sdev_printk(KERN_INFO, sdev, "Aborting outstanding commands\n");
timeout = wait_for_completion_timeout(&evt->comp, timeout);
if (!timeout) {
rc = ibmvfc_cancel_all(sdev, 0);
if (!rc) {
rc = ibmvfc_wait_for_ops(vhost, sdev->hostdata, ibmvfc_match_key);
if (rc == SUCCESS)
rc = 0;
}
if (rc) {
sdev_printk(KERN_INFO, sdev, "Cancel failed, resetting host\n");
ibmvfc_reset_host(vhost);
rsp_rc = -EIO;
rc = ibmvfc_wait_for_ops(vhost, sdev->hostdata, ibmvfc_match_key);
if (rc == SUCCESS)
rsp_rc = 0;
rc = ibmvfc_wait_for_ops(vhost, evt, ibmvfc_match_evt);
if (rc != SUCCESS) {
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_hard_reset_host(vhost);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
rsp_rc = 0;
}
goto out;
}
}
if (rsp_iu.cmd.status)
rsp_code = ibmvfc_get_err_result(vhost, &rsp_iu.cmd);
if (rsp_code) {
if (fc_rsp->flags & FCP_RSP_LEN_VALID)
rsp_code = fc_rsp->data.info.rsp_code;
sdev_printk(KERN_ERR, sdev, "Abort failed: %s (%x:%x) "
"flags: %x fcp_rsp: %x, scsi_status: %x\n",
ibmvfc_get_cmd_error(be16_to_cpu(rsp_iu.cmd.status), be16_to_cpu(rsp_iu.cmd.error)),
be16_to_cpu(rsp_iu.cmd.status), be16_to_cpu(rsp_iu.cmd.error), fc_rsp->flags, rsp_code,
fc_rsp->scsi_status);
rsp_rc = -EIO;
} else
sdev_printk(KERN_INFO, sdev, "Abort successful\n");
out:
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_free_event(evt);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return rsp_rc;
}
/**
* ibmvfc_eh_abort_handler - Abort a command
* @cmd: scsi command to abort
*
* Returns:
* SUCCESS / FAST_IO_FAIL / FAILED
**/
static int ibmvfc_eh_abort_handler(struct scsi_cmnd *cmd)
{
struct scsi_device *sdev = cmd->device;
struct ibmvfc_host *vhost = shost_priv(sdev->host);
int cancel_rc, block_rc;
int rc = FAILED;
ENTER;
block_rc = fc_block_scsi_eh(cmd);
ibmvfc_wait_while_resetting(vhost);
if (block_rc != FAST_IO_FAIL) {
cancel_rc = ibmvfc_cancel_all(sdev, IBMVFC_TMF_ABORT_TASK_SET);
ibmvfc_abort_task_set(sdev);
} else
cancel_rc = ibmvfc_cancel_all(sdev, IBMVFC_TMF_SUPPRESS_ABTS);
if (!cancel_rc)
rc = ibmvfc_wait_for_ops(vhost, sdev, ibmvfc_match_lun);
if (block_rc == FAST_IO_FAIL && rc != FAILED)
rc = FAST_IO_FAIL;
LEAVE;
return rc;
}
/**
* ibmvfc_eh_device_reset_handler - Reset a single LUN
* @cmd: scsi command struct
*
* Returns:
* SUCCESS / FAST_IO_FAIL / FAILED
**/
static int ibmvfc_eh_device_reset_handler(struct scsi_cmnd *cmd)
{
struct scsi_device *sdev = cmd->device;
struct ibmvfc_host *vhost = shost_priv(sdev->host);
int cancel_rc, block_rc, reset_rc = 0;
int rc = FAILED;
ENTER;
block_rc = fc_block_scsi_eh(cmd);
ibmvfc_wait_while_resetting(vhost);
if (block_rc != FAST_IO_FAIL) {
cancel_rc = ibmvfc_cancel_all(sdev, IBMVFC_TMF_LUN_RESET);
reset_rc = ibmvfc_reset_device(sdev, IBMVFC_LUN_RESET, "LUN");
} else
cancel_rc = ibmvfc_cancel_all(sdev, IBMVFC_TMF_SUPPRESS_ABTS);
if (!cancel_rc && !reset_rc)
rc = ibmvfc_wait_for_ops(vhost, sdev, ibmvfc_match_lun);
if (block_rc == FAST_IO_FAIL && rc != FAILED)
rc = FAST_IO_FAIL;
LEAVE;
return rc;
}
/**
* ibmvfc_dev_cancel_all_noreset - Device iterated cancel all function
* @sdev: scsi device struct
* @data: return code
*
**/
static void ibmvfc_dev_cancel_all_noreset(struct scsi_device *sdev, void *data)
{
unsigned long *rc = data;
*rc |= ibmvfc_cancel_all(sdev, IBMVFC_TMF_SUPPRESS_ABTS);
}
/**
* ibmvfc_dev_cancel_all_reset - Device iterated cancel all function
* @sdev: scsi device struct
* @data: return code
*
**/
static void ibmvfc_dev_cancel_all_reset(struct scsi_device *sdev, void *data)
{
unsigned long *rc = data;
*rc |= ibmvfc_cancel_all(sdev, IBMVFC_TMF_TGT_RESET);
}
/**
* ibmvfc_eh_target_reset_handler - Reset the target
* @cmd: scsi command struct
*
* Returns:
* SUCCESS / FAST_IO_FAIL / FAILED
**/
static int ibmvfc_eh_target_reset_handler(struct scsi_cmnd *cmd)
{
struct scsi_device *sdev = cmd->device;
struct ibmvfc_host *vhost = shost_priv(sdev->host);
struct scsi_target *starget = scsi_target(sdev);
int block_rc;
int reset_rc = 0;
int rc = FAILED;
unsigned long cancel_rc = 0;
ENTER;
block_rc = fc_block_scsi_eh(cmd);
ibmvfc_wait_while_resetting(vhost);
if (block_rc != FAST_IO_FAIL) {
starget_for_each_device(starget, &cancel_rc, ibmvfc_dev_cancel_all_reset);
reset_rc = ibmvfc_reset_device(sdev, IBMVFC_TARGET_RESET, "target");
} else
starget_for_each_device(starget, &cancel_rc, ibmvfc_dev_cancel_all_noreset);
if (!cancel_rc && !reset_rc)
rc = ibmvfc_wait_for_ops(vhost, starget, ibmvfc_match_target);
if (block_rc == FAST_IO_FAIL && rc != FAILED)
rc = FAST_IO_FAIL;
LEAVE;
return rc;
}
/**
* ibmvfc_eh_host_reset_handler - Reset the connection to the server
* @cmd: struct scsi_cmnd having problems
*
**/
static int ibmvfc_eh_host_reset_handler(struct scsi_cmnd *cmd)
{
int rc;
struct ibmvfc_host *vhost = shost_priv(cmd->device->host);
dev_err(vhost->dev, "Resetting connection due to error recovery\n");
rc = ibmvfc_issue_fc_host_lip(vhost->host);
return rc ? FAILED : SUCCESS;
}
/**
* ibmvfc_terminate_rport_io - Terminate all pending I/O to the rport.
* @rport: rport struct
*
* Return value:
* none
**/
static void ibmvfc_terminate_rport_io(struct fc_rport *rport)
{
struct Scsi_Host *shost = rport_to_shost(rport);
struct ibmvfc_host *vhost = shost_priv(shost);
struct fc_rport *dev_rport;
struct scsi_device *sdev;
struct ibmvfc_target *tgt;
unsigned long rc, flags;
unsigned int found;
ENTER;
shost_for_each_device(sdev, shost) {
dev_rport = starget_to_rport(scsi_target(sdev));
if (dev_rport != rport)
continue;
ibmvfc_cancel_all(sdev, IBMVFC_TMF_SUPPRESS_ABTS);
}
rc = ibmvfc_wait_for_ops(vhost, rport, ibmvfc_match_rport);
if (rc == FAILED)
ibmvfc_issue_fc_host_lip(shost);
spin_lock_irqsave(shost->host_lock, flags);
found = 0;
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->scsi_id == rport->port_id) {
found++;
break;
}
}
if (found && tgt->action == IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT) {
/*
* If we get here, that means we previously attempted to send
* an implicit logout to the target but it failed, most likely
* due to I/O being pending, so we need to send it again
*/
ibmvfc_del_tgt(tgt);
ibmvfc_reinit_host(vhost);
}
spin_unlock_irqrestore(shost->host_lock, flags);
LEAVE;
}
static const struct ibmvfc_async_desc ae_desc [] = {
{ "PLOGI", IBMVFC_AE_ELS_PLOGI, IBMVFC_DEFAULT_LOG_LEVEL + 1 },
{ "LOGO", IBMVFC_AE_ELS_LOGO, IBMVFC_DEFAULT_LOG_LEVEL + 1 },
{ "PRLO", IBMVFC_AE_ELS_PRLO, IBMVFC_DEFAULT_LOG_LEVEL + 1 },
{ "N-Port SCN", IBMVFC_AE_SCN_NPORT, IBMVFC_DEFAULT_LOG_LEVEL + 1 },
{ "Group SCN", IBMVFC_AE_SCN_GROUP, IBMVFC_DEFAULT_LOG_LEVEL + 1 },
{ "Domain SCN", IBMVFC_AE_SCN_DOMAIN, IBMVFC_DEFAULT_LOG_LEVEL },
{ "Fabric SCN", IBMVFC_AE_SCN_FABRIC, IBMVFC_DEFAULT_LOG_LEVEL },
{ "Link Up", IBMVFC_AE_LINK_UP, IBMVFC_DEFAULT_LOG_LEVEL },
{ "Link Down", IBMVFC_AE_LINK_DOWN, IBMVFC_DEFAULT_LOG_LEVEL },
{ "Link Dead", IBMVFC_AE_LINK_DEAD, IBMVFC_DEFAULT_LOG_LEVEL },
{ "Halt", IBMVFC_AE_HALT, IBMVFC_DEFAULT_LOG_LEVEL },
{ "Resume", IBMVFC_AE_RESUME, IBMVFC_DEFAULT_LOG_LEVEL },
{ "Adapter Failed", IBMVFC_AE_ADAPTER_FAILED, IBMVFC_DEFAULT_LOG_LEVEL },
};
static const struct ibmvfc_async_desc unknown_ae = {
"Unknown async", 0, IBMVFC_DEFAULT_LOG_LEVEL
};
/**
* ibmvfc_get_ae_desc - Get text description for async event
* @ae: async event
*
**/
static const struct ibmvfc_async_desc *ibmvfc_get_ae_desc(u64 ae)
{
int i;
for (i = 0; i < ARRAY_SIZE(ae_desc); i++)
if (ae_desc[i].ae == ae)
return &ae_desc[i];
return &unknown_ae;
}
static const struct {
enum ibmvfc_ae_link_state state;
const char *desc;
} link_desc [] = {
{ IBMVFC_AE_LS_LINK_UP, " link up" },
{ IBMVFC_AE_LS_LINK_BOUNCED, " link bounced" },
{ IBMVFC_AE_LS_LINK_DOWN, " link down" },
{ IBMVFC_AE_LS_LINK_DEAD, " link dead" },
};
/**
* ibmvfc_get_link_state - Get text description for link state
* @state: link state
*
**/
static const char *ibmvfc_get_link_state(enum ibmvfc_ae_link_state state)
{
int i;
for (i = 0; i < ARRAY_SIZE(link_desc); i++)
if (link_desc[i].state == state)
return link_desc[i].desc;
return "";
}
/**
* ibmvfc_handle_async - Handle an async event from the adapter
* @crq: crq to process
* @vhost: ibmvfc host struct
*
**/
static void ibmvfc_handle_async(struct ibmvfc_async_crq *crq,
struct ibmvfc_host *vhost)
{
const struct ibmvfc_async_desc *desc = ibmvfc_get_ae_desc(be64_to_cpu(crq->event));
struct ibmvfc_target *tgt;
ibmvfc_log(vhost, desc->log_level, "%s event received. scsi_id: %llx, wwpn: %llx,"
" node_name: %llx%s\n", desc->desc, be64_to_cpu(crq->scsi_id),
be64_to_cpu(crq->wwpn), be64_to_cpu(crq->node_name),
ibmvfc_get_link_state(crq->link_state));
switch (be64_to_cpu(crq->event)) {
case IBMVFC_AE_RESUME:
switch (crq->link_state) {
case IBMVFC_AE_LS_LINK_DOWN:
ibmvfc_link_down(vhost, IBMVFC_LINK_DOWN);
break;
case IBMVFC_AE_LS_LINK_DEAD:
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
break;
case IBMVFC_AE_LS_LINK_UP:
case IBMVFC_AE_LS_LINK_BOUNCED:
default:
vhost->events_to_log |= IBMVFC_AE_LINKUP;
vhost->delay_init = 1;
__ibmvfc_reset_host(vhost);
break;
}
break;
case IBMVFC_AE_LINK_UP:
vhost->events_to_log |= IBMVFC_AE_LINKUP;
vhost->delay_init = 1;
__ibmvfc_reset_host(vhost);
break;
case IBMVFC_AE_SCN_FABRIC:
case IBMVFC_AE_SCN_DOMAIN:
vhost->events_to_log |= IBMVFC_AE_RSCN;
if (vhost->state < IBMVFC_HALTED) {
vhost->delay_init = 1;
__ibmvfc_reset_host(vhost);
}
break;
case IBMVFC_AE_SCN_NPORT:
case IBMVFC_AE_SCN_GROUP:
vhost->events_to_log |= IBMVFC_AE_RSCN;
ibmvfc_reinit_host(vhost);
break;
case IBMVFC_AE_ELS_LOGO:
case IBMVFC_AE_ELS_PRLO:
case IBMVFC_AE_ELS_PLOGI:
list_for_each_entry(tgt, &vhost->targets, queue) {
if (!crq->scsi_id && !crq->wwpn && !crq->node_name)
break;
if (crq->scsi_id && cpu_to_be64(tgt->scsi_id) != crq->scsi_id)
continue;
if (crq->wwpn && cpu_to_be64(tgt->ids.port_name) != crq->wwpn)
continue;
if (crq->node_name && cpu_to_be64(tgt->ids.node_name) != crq->node_name)
continue;
if (tgt->need_login && be64_to_cpu(crq->event) == IBMVFC_AE_ELS_LOGO)
tgt->logo_rcvd = 1;
if (!tgt->need_login || be64_to_cpu(crq->event) == IBMVFC_AE_ELS_PLOGI) {
ibmvfc_del_tgt(tgt);
ibmvfc_reinit_host(vhost);
}
}
break;
case IBMVFC_AE_LINK_DOWN:
case IBMVFC_AE_ADAPTER_FAILED:
ibmvfc_link_down(vhost, IBMVFC_LINK_DOWN);
break;
case IBMVFC_AE_LINK_DEAD:
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
break;
case IBMVFC_AE_HALT:
ibmvfc_link_down(vhost, IBMVFC_HALTED);
break;
default:
dev_err(vhost->dev, "Unknown async event received: %lld\n", crq->event);
break;
}
}
/**
* ibmvfc_handle_crq - Handles and frees received events in the CRQ
* @crq: Command/Response queue
* @vhost: ibmvfc host struct
* @evt_doneq: Event done queue
*
**/
static void ibmvfc_handle_crq(struct ibmvfc_crq *crq, struct ibmvfc_host *vhost,
struct list_head *evt_doneq)
{
long rc;
struct ibmvfc_event *evt = (struct ibmvfc_event *)be64_to_cpu(crq->ioba);
switch (crq->valid) {
case IBMVFC_CRQ_INIT_RSP:
switch (crq->format) {
case IBMVFC_CRQ_INIT:
dev_info(vhost->dev, "Partner initialized\n");
/* Send back a response */
rc = ibmvfc_send_crq_init_complete(vhost);
if (rc == 0)
ibmvfc_init_host(vhost);
else
dev_err(vhost->dev, "Unable to send init rsp. rc=%ld\n", rc);
break;
case IBMVFC_CRQ_INIT_COMPLETE:
dev_info(vhost->dev, "Partner initialization complete\n");
ibmvfc_init_host(vhost);
break;
default:
dev_err(vhost->dev, "Unknown crq message type: %d\n", crq->format);
}
return;
case IBMVFC_CRQ_XPORT_EVENT:
vhost->state = IBMVFC_NO_CRQ;
vhost->logged_in = 0;
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_NONE);
if (crq->format == IBMVFC_PARTITION_MIGRATED) {
/* We need to re-setup the interpartition connection */
dev_info(vhost->dev, "Partition migrated, Re-enabling adapter\n");
vhost->client_migrated = 1;
scsi_block_requests(vhost->host);
ibmvfc_purge_requests(vhost, DID_REQUEUE);
ibmvfc_set_host_state(vhost, IBMVFC_LINK_DOWN);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_REENABLE);
wake_up(&vhost->work_wait_q);
} else if (crq->format == IBMVFC_PARTNER_FAILED || crq->format == IBMVFC_PARTNER_DEREGISTER) {
dev_err(vhost->dev, "Host partner adapter deregistered or failed (rc=%d)\n", crq->format);
ibmvfc_purge_requests(vhost, DID_ERROR);
ibmvfc_link_down(vhost, IBMVFC_LINK_DOWN);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_RESET);
} else {
dev_err(vhost->dev, "Received unknown transport event from partner (rc=%d)\n", crq->format);
}
return;
case IBMVFC_CRQ_CMD_RSP:
break;
default:
dev_err(vhost->dev, "Got an invalid message type 0x%02x\n", crq->valid);
return;
}
if (crq->format == IBMVFC_ASYNC_EVENT)
return;
/* The only kind of payload CRQs we should get are responses to
* things we send. Make sure this response is to something we
* actually sent
*/
if (unlikely(!ibmvfc_valid_event(&vhost->crq.evt_pool, evt))) {
dev_err(vhost->dev, "Returned correlation_token 0x%08llx is invalid!\n",
crq->ioba);
return;
}
if (unlikely(atomic_dec_if_positive(&evt->active))) {
dev_err(vhost->dev, "Received duplicate correlation_token 0x%08llx!\n",
crq->ioba);
return;
}
spin_lock(&evt->queue->l_lock);
list_move_tail(&evt->queue_list, evt_doneq);
spin_unlock(&evt->queue->l_lock);
}
/**
* ibmvfc_scan_finished - Check if the device scan is done.
* @shost: scsi host struct
* @time: current elapsed time
*
* Returns:
* 0 if scan is not done / 1 if scan is done
**/
static int ibmvfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
unsigned long flags;
struct ibmvfc_host *vhost = shost_priv(shost);
int done = 0;
spin_lock_irqsave(shost->host_lock, flags);
if (!vhost->scan_timeout)
done = 1;
else if (time >= (vhost->scan_timeout * HZ)) {
dev_info(vhost->dev, "Scan taking longer than %d seconds, "
"continuing initialization\n", vhost->scan_timeout);
done = 1;
}
if (vhost->scan_complete) {
vhost->scan_timeout = init_timeout;
done = 1;
}
spin_unlock_irqrestore(shost->host_lock, flags);
return done;
}
/**
* ibmvfc_slave_alloc - Setup the device's task set value
* @sdev: struct scsi_device device to configure
*
* Set the device's task set value so that error handling works as
* expected.
*
* Returns:
* 0 on success / -ENXIO if device does not exist
**/
static int ibmvfc_slave_alloc(struct scsi_device *sdev)
{
struct Scsi_Host *shost = sdev->host;
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags = 0;
if (!rport || fc_remote_port_chkready(rport))
return -ENXIO;
spin_lock_irqsave(shost->host_lock, flags);
sdev->hostdata = (void *)(unsigned long)vhost->task_set++;
spin_unlock_irqrestore(shost->host_lock, flags);
return 0;
}
/**
* ibmvfc_target_alloc - Setup the target's task set value
* @starget: struct scsi_target
*
* Set the target's task set value so that error handling works as
* expected.
*
* Returns:
* 0 on success / -ENXIO if device does not exist
**/
static int ibmvfc_target_alloc(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags = 0;
spin_lock_irqsave(shost->host_lock, flags);
starget->hostdata = (void *)(unsigned long)vhost->task_set++;
spin_unlock_irqrestore(shost->host_lock, flags);
return 0;
}
/**
* ibmvfc_slave_configure - Configure the device
* @sdev: struct scsi_device device to configure
*
* Enable allow_restart for a device if it is a disk. Adjust the
* queue_depth here also.
*
* Returns:
* 0
**/
static int ibmvfc_slave_configure(struct scsi_device *sdev)
{
struct Scsi_Host *shost = sdev->host;
unsigned long flags = 0;
spin_lock_irqsave(shost->host_lock, flags);
if (sdev->type == TYPE_DISK) {
sdev->allow_restart = 1;
blk_queue_rq_timeout(sdev->request_queue, 120 * HZ);
}
spin_unlock_irqrestore(shost->host_lock, flags);
return 0;
}
/**
* ibmvfc_change_queue_depth - Change the device's queue depth
* @sdev: scsi device struct
* @qdepth: depth to set
*
* Return value:
* actual depth set
**/
static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth)
{
if (qdepth > IBMVFC_MAX_CMDS_PER_LUN)
qdepth = IBMVFC_MAX_CMDS_PER_LUN;
return scsi_change_queue_depth(sdev, qdepth);
}
static ssize_t ibmvfc_show_host_partition_name(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
return snprintf(buf, PAGE_SIZE, "%s\n",
vhost->login_buf->resp.partition_name);
}
static ssize_t ibmvfc_show_host_device_name(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
return snprintf(buf, PAGE_SIZE, "%s\n",
vhost->login_buf->resp.device_name);
}
static ssize_t ibmvfc_show_host_loc_code(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
return snprintf(buf, PAGE_SIZE, "%s\n",
vhost->login_buf->resp.port_loc_code);
}
static ssize_t ibmvfc_show_host_drc_name(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
return snprintf(buf, PAGE_SIZE, "%s\n",
vhost->login_buf->resp.drc_name);
}
static ssize_t ibmvfc_show_host_npiv_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
return snprintf(buf, PAGE_SIZE, "%d\n", be32_to_cpu(vhost->login_buf->resp.version));
}
static ssize_t ibmvfc_show_host_capabilities(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
return snprintf(buf, PAGE_SIZE, "%llx\n", be64_to_cpu(vhost->login_buf->resp.capabilities));
}
/**
* ibmvfc_show_log_level - Show the adapter's error logging level
* @dev: class device struct
* @attr: unused
* @buf: buffer
*
* Return value:
* number of bytes printed to buffer
**/
static ssize_t ibmvfc_show_log_level(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags = 0;
int len;
spin_lock_irqsave(shost->host_lock, flags);
len = snprintf(buf, PAGE_SIZE, "%d\n", vhost->log_level);
spin_unlock_irqrestore(shost->host_lock, flags);
return len;
}
/**
* ibmvfc_store_log_level - Change the adapter's error logging level
* @dev: class device struct
* @attr: unused
* @buf: buffer
* @count: buffer size
*
* Return value:
* number of bytes printed to buffer
**/
static ssize_t ibmvfc_store_log_level(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags = 0;
spin_lock_irqsave(shost->host_lock, flags);
vhost->log_level = simple_strtoul(buf, NULL, 10);
spin_unlock_irqrestore(shost->host_lock, flags);
return strlen(buf);
}
static ssize_t ibmvfc_show_scsi_channels(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags = 0;
int len;
spin_lock_irqsave(shost->host_lock, flags);
len = snprintf(buf, PAGE_SIZE, "%d\n", vhost->client_scsi_channels);
spin_unlock_irqrestore(shost->host_lock, flags);
return len;
}
static ssize_t ibmvfc_store_scsi_channels(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags = 0;
unsigned int channels;
spin_lock_irqsave(shost->host_lock, flags);
channels = simple_strtoul(buf, NULL, 10);
vhost->client_scsi_channels = min(channels, nr_scsi_hw_queues);
ibmvfc_hard_reset_host(vhost);
spin_unlock_irqrestore(shost->host_lock, flags);
return strlen(buf);
}
static DEVICE_ATTR(partition_name, S_IRUGO, ibmvfc_show_host_partition_name, NULL);
static DEVICE_ATTR(device_name, S_IRUGO, ibmvfc_show_host_device_name, NULL);
static DEVICE_ATTR(port_loc_code, S_IRUGO, ibmvfc_show_host_loc_code, NULL);
static DEVICE_ATTR(drc_name, S_IRUGO, ibmvfc_show_host_drc_name, NULL);
static DEVICE_ATTR(npiv_version, S_IRUGO, ibmvfc_show_host_npiv_version, NULL);
static DEVICE_ATTR(capabilities, S_IRUGO, ibmvfc_show_host_capabilities, NULL);
static DEVICE_ATTR(log_level, S_IRUGO | S_IWUSR,
ibmvfc_show_log_level, ibmvfc_store_log_level);
static DEVICE_ATTR(nr_scsi_channels, S_IRUGO | S_IWUSR,
ibmvfc_show_scsi_channels, ibmvfc_store_scsi_channels);
#ifdef CONFIG_SCSI_IBMVFC_TRACE
/**
* ibmvfc_read_trace - Dump the adapter trace
* @filp: open sysfs file
* @kobj: kobject struct
* @bin_attr: bin_attribute struct
* @buf: buffer
* @off: offset
* @count: buffer size
*
* Return value:
* number of bytes printed to buffer
**/
static ssize_t ibmvfc_read_trace(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj);
struct Scsi_Host *shost = class_to_shost(dev);
struct ibmvfc_host *vhost = shost_priv(shost);
unsigned long flags = 0;
int size = IBMVFC_TRACE_SIZE;
char *src = (char *)vhost->trace;
if (off > size)
return 0;
if (off + count > size) {
size -= off;
count = size;
}
spin_lock_irqsave(shost->host_lock, flags);
memcpy(buf, &src[off], count);
spin_unlock_irqrestore(shost->host_lock, flags);
return count;
}
static struct bin_attribute ibmvfc_trace_attr = {
.attr = {
.name = "trace",
.mode = S_IRUGO,
},
.size = 0,
.read = ibmvfc_read_trace,
};
#endif
static struct attribute *ibmvfc_host_attrs[] = {
&dev_attr_partition_name.attr,
&dev_attr_device_name.attr,
&dev_attr_port_loc_code.attr,
&dev_attr_drc_name.attr,
&dev_attr_npiv_version.attr,
&dev_attr_capabilities.attr,
&dev_attr_log_level.attr,
&dev_attr_nr_scsi_channels.attr,
NULL
};
ATTRIBUTE_GROUPS(ibmvfc_host);
static const struct scsi_host_template driver_template = {
.module = THIS_MODULE,
.name = "IBM POWER Virtual FC Adapter",
.proc_name = IBMVFC_NAME,
.queuecommand = ibmvfc_queuecommand,
.eh_timed_out = fc_eh_timed_out,
.eh_abort_handler = ibmvfc_eh_abort_handler,
.eh_device_reset_handler = ibmvfc_eh_device_reset_handler,
.eh_target_reset_handler = ibmvfc_eh_target_reset_handler,
.eh_host_reset_handler = ibmvfc_eh_host_reset_handler,
.slave_alloc = ibmvfc_slave_alloc,
.slave_configure = ibmvfc_slave_configure,
.target_alloc = ibmvfc_target_alloc,
.scan_finished = ibmvfc_scan_finished,
.change_queue_depth = ibmvfc_change_queue_depth,
.cmd_per_lun = 16,
.can_queue = IBMVFC_MAX_REQUESTS_DEFAULT,
.this_id = -1,
.sg_tablesize = SG_ALL,
.max_sectors = IBMVFC_MAX_SECTORS,
.shost_groups = ibmvfc_host_groups,
.track_queue_depth = 1,
.host_tagset = 1,
};
/**
* ibmvfc_next_async_crq - Returns the next entry in async queue
* @vhost: ibmvfc host struct
*
* Returns:
* Pointer to next entry in queue / NULL if empty
**/
static struct ibmvfc_async_crq *ibmvfc_next_async_crq(struct ibmvfc_host *vhost)
{
struct ibmvfc_queue *async_crq = &vhost->async_crq;
struct ibmvfc_async_crq *crq;
crq = &async_crq->msgs.async[async_crq->cur];
if (crq->valid & 0x80) {
if (++async_crq->cur == async_crq->size)
async_crq->cur = 0;
rmb();
} else
crq = NULL;
return crq;
}
/**
* ibmvfc_next_crq - Returns the next entry in message queue
* @vhost: ibmvfc host struct
*
* Returns:
* Pointer to next entry in queue / NULL if empty
**/
static struct ibmvfc_crq *ibmvfc_next_crq(struct ibmvfc_host *vhost)
{
struct ibmvfc_queue *queue = &vhost->crq;
struct ibmvfc_crq *crq;
crq = &queue->msgs.crq[queue->cur];
if (crq->valid & 0x80) {
if (++queue->cur == queue->size)
queue->cur = 0;
rmb();
} else
crq = NULL;
return crq;
}
/**
* ibmvfc_interrupt - Interrupt handler
* @irq: number of irq to handle, not used
* @dev_instance: ibmvfc_host that received interrupt
*
* Returns:
* IRQ_HANDLED
**/
static irqreturn_t ibmvfc_interrupt(int irq, void *dev_instance)
{
struct ibmvfc_host *vhost = (struct ibmvfc_host *)dev_instance;
unsigned long flags;
spin_lock_irqsave(vhost->host->host_lock, flags);
vio_disable_interrupts(to_vio_dev(vhost->dev));
tasklet_schedule(&vhost->tasklet);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return IRQ_HANDLED;
}
/**
* ibmvfc_tasklet - Interrupt handler tasklet
* @data: ibmvfc host struct
*
* Returns:
* Nothing
**/
static void ibmvfc_tasklet(void *data)
{
struct ibmvfc_host *vhost = data;
struct vio_dev *vdev = to_vio_dev(vhost->dev);
struct ibmvfc_crq *crq;
struct ibmvfc_async_crq *async;
struct ibmvfc_event *evt, *temp;
unsigned long flags;
int done = 0;
LIST_HEAD(evt_doneq);
spin_lock_irqsave(vhost->host->host_lock, flags);
spin_lock(vhost->crq.q_lock);
while (!done) {
/* Pull all the valid messages off the async CRQ */
while ((async = ibmvfc_next_async_crq(vhost)) != NULL) {
ibmvfc_handle_async(async, vhost);
async->valid = 0;
wmb();
}
/* Pull all the valid messages off the CRQ */
while ((crq = ibmvfc_next_crq(vhost)) != NULL) {
ibmvfc_handle_crq(crq, vhost, &evt_doneq);
crq->valid = 0;
wmb();
}
vio_enable_interrupts(vdev);
if ((async = ibmvfc_next_async_crq(vhost)) != NULL) {
vio_disable_interrupts(vdev);
ibmvfc_handle_async(async, vhost);
async->valid = 0;
wmb();
} else if ((crq = ibmvfc_next_crq(vhost)) != NULL) {
vio_disable_interrupts(vdev);
ibmvfc_handle_crq(crq, vhost, &evt_doneq);
crq->valid = 0;
wmb();
} else
done = 1;
}
spin_unlock(vhost->crq.q_lock);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
list_for_each_entry_safe(evt, temp, &evt_doneq, queue_list) {
del_timer(&evt->timer);
list_del(&evt->queue_list);
ibmvfc_trc_end(evt);
evt->done(evt);
}
}
static int ibmvfc_toggle_scrq_irq(struct ibmvfc_queue *scrq, int enable)
{
struct device *dev = scrq->vhost->dev;
struct vio_dev *vdev = to_vio_dev(dev);
unsigned long rc;
int irq_action = H_ENABLE_VIO_INTERRUPT;
if (!enable)
irq_action = H_DISABLE_VIO_INTERRUPT;
rc = plpar_hcall_norets(H_VIOCTL, vdev->unit_address, irq_action,
scrq->hw_irq, 0, 0);
if (rc)
dev_err(dev, "Couldn't %s sub-crq[%lu] irq. rc=%ld\n",
enable ? "enable" : "disable", scrq->hwq_id, rc);
return rc;
}
static void ibmvfc_handle_scrq(struct ibmvfc_crq *crq, struct ibmvfc_host *vhost,
struct list_head *evt_doneq)
{
struct ibmvfc_event *evt = (struct ibmvfc_event *)be64_to_cpu(crq->ioba);
switch (crq->valid) {
case IBMVFC_CRQ_CMD_RSP:
break;
case IBMVFC_CRQ_XPORT_EVENT:
return;
default:
dev_err(vhost->dev, "Got and invalid message type 0x%02x\n", crq->valid);
return;
}
/* The only kind of payload CRQs we should get are responses to
* things we send. Make sure this response is to something we
* actually sent
*/
if (unlikely(!ibmvfc_valid_event(&evt->queue->evt_pool, evt))) {
dev_err(vhost->dev, "Returned correlation_token 0x%08llx is invalid!\n",
crq->ioba);
return;
}
if (unlikely(atomic_dec_if_positive(&evt->active))) {
dev_err(vhost->dev, "Received duplicate correlation_token 0x%08llx!\n",
crq->ioba);
return;
}
spin_lock(&evt->queue->l_lock);
list_move_tail(&evt->queue_list, evt_doneq);
spin_unlock(&evt->queue->l_lock);
}
static struct ibmvfc_crq *ibmvfc_next_scrq(struct ibmvfc_queue *scrq)
{
struct ibmvfc_crq *crq;
crq = &scrq->msgs.scrq[scrq->cur].crq;
if (crq->valid & 0x80) {
if (++scrq->cur == scrq->size)
scrq->cur = 0;
rmb();
} else
crq = NULL;
return crq;
}
static void ibmvfc_drain_sub_crq(struct ibmvfc_queue *scrq)
{
struct ibmvfc_crq *crq;
struct ibmvfc_event *evt, *temp;
unsigned long flags;
int done = 0;
LIST_HEAD(evt_doneq);
spin_lock_irqsave(scrq->q_lock, flags);
while (!done) {
while ((crq = ibmvfc_next_scrq(scrq)) != NULL) {
ibmvfc_handle_scrq(crq, scrq->vhost, &evt_doneq);
crq->valid = 0;
wmb();
}
ibmvfc_toggle_scrq_irq(scrq, 1);
if ((crq = ibmvfc_next_scrq(scrq)) != NULL) {
ibmvfc_toggle_scrq_irq(scrq, 0);
ibmvfc_handle_scrq(crq, scrq->vhost, &evt_doneq);
crq->valid = 0;
wmb();
} else
done = 1;
}
spin_unlock_irqrestore(scrq->q_lock, flags);
list_for_each_entry_safe(evt, temp, &evt_doneq, queue_list) {
del_timer(&evt->timer);
list_del(&evt->queue_list);
ibmvfc_trc_end(evt);
evt->done(evt);
}
}
static irqreturn_t ibmvfc_interrupt_scsi(int irq, void *scrq_instance)
{
struct ibmvfc_queue *scrq = (struct ibmvfc_queue *)scrq_instance;
ibmvfc_toggle_scrq_irq(scrq, 0);
ibmvfc_drain_sub_crq(scrq);
return IRQ_HANDLED;
}
/**
* ibmvfc_init_tgt - Set the next init job step for the target
* @tgt: ibmvfc target struct
* @job_step: job step to perform
*
**/
static void ibmvfc_init_tgt(struct ibmvfc_target *tgt,
void (*job_step) (struct ibmvfc_target *))
{
if (!ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT))
tgt->job_step = job_step;
wake_up(&tgt->vhost->work_wait_q);
}
/**
* ibmvfc_retry_tgt_init - Attempt to retry a step in target initialization
* @tgt: ibmvfc target struct
* @job_step: initialization job step
*
* Returns: 1 if step will be retried / 0 if not
*
**/
static int ibmvfc_retry_tgt_init(struct ibmvfc_target *tgt,
void (*job_step) (struct ibmvfc_target *))
{
if (++tgt->init_retries > IBMVFC_MAX_TGT_INIT_RETRIES) {
ibmvfc_del_tgt(tgt);
wake_up(&tgt->vhost->work_wait_q);
return 0;
} else
ibmvfc_init_tgt(tgt, job_step);
return 1;
}
/* Defined in FC-LS */
static const struct {
int code;
int retry;
int logged_in;
} prli_rsp [] = {
{ 0, 1, 0 },
{ 1, 0, 1 },
{ 2, 1, 0 },
{ 3, 1, 0 },
{ 4, 0, 0 },
{ 5, 0, 0 },
{ 6, 0, 1 },
{ 7, 0, 0 },
{ 8, 1, 0 },
};
/**
* ibmvfc_get_prli_rsp - Find PRLI response index
* @flags: PRLI response flags
*
**/
static int ibmvfc_get_prli_rsp(u16 flags)
{
int i;
int code = (flags & 0x0f00) >> 8;
for (i = 0; i < ARRAY_SIZE(prli_rsp); i++)
if (prli_rsp[i].code == code)
return i;
return 0;
}
/**
* ibmvfc_tgt_prli_done - Completion handler for Process Login
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_tgt_prli_done(struct ibmvfc_event *evt)
{
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_process_login *rsp = &evt->xfer_iu->prli;
struct ibmvfc_prli_svc_parms *parms = &rsp->parms;
u32 status = be16_to_cpu(rsp->common.status);
int index, level = IBMVFC_DEFAULT_LOG_LEVEL;
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
switch (status) {
case IBMVFC_MAD_SUCCESS:
tgt_dbg(tgt, "Process Login succeeded: %X %02X %04X\n",
parms->type, parms->flags, parms->service_parms);
if (parms->type == IBMVFC_SCSI_FCP_TYPE) {
index = ibmvfc_get_prli_rsp(be16_to_cpu(parms->flags));
if (prli_rsp[index].logged_in) {
if (be16_to_cpu(parms->flags) & IBMVFC_PRLI_EST_IMG_PAIR) {
tgt->need_login = 0;
tgt->ids.roles = 0;
if (be32_to_cpu(parms->service_parms) & IBMVFC_PRLI_TARGET_FUNC)
tgt->ids.roles |= FC_PORT_ROLE_FCP_TARGET;
if (be32_to_cpu(parms->service_parms) & IBMVFC_PRLI_INITIATOR_FUNC)
tgt->ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
tgt->add_rport = 1;
} else
ibmvfc_del_tgt(tgt);
} else if (prli_rsp[index].retry)
ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_prli);
else
ibmvfc_del_tgt(tgt);
} else
ibmvfc_del_tgt(tgt);
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
case IBMVFC_MAD_CRQ_ERROR:
ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_prli);
break;
case IBMVFC_MAD_FAILED:
default:
if ((be16_to_cpu(rsp->status) & IBMVFC_VIOS_FAILURE) &&
be16_to_cpu(rsp->error) == IBMVFC_PLOGI_REQUIRED)
level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_plogi);
else if (tgt->logo_rcvd)
level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_plogi);
else if (ibmvfc_retry_cmd(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)))
level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_prli);
else
ibmvfc_del_tgt(tgt);
tgt_log(tgt, level, "Process Login failed: %s (%x:%x) rc=0x%02X\n",
ibmvfc_get_cmd_error(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)),
be16_to_cpu(rsp->status), be16_to_cpu(rsp->error), status);
break;
}
kref_put(&tgt->kref, ibmvfc_release_tgt);
ibmvfc_free_event(evt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_tgt_send_prli - Send a process login
* @tgt: ibmvfc target struct
*
**/
static void ibmvfc_tgt_send_prli(struct ibmvfc_target *tgt)
{
struct ibmvfc_process_login *prli;
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
if (vhost->discovery_threads >= disc_threads)
return;
kref_get(&tgt->kref);
evt = ibmvfc_get_event(&vhost->crq);
vhost->discovery_threads++;
ibmvfc_init_event(evt, ibmvfc_tgt_prli_done, IBMVFC_MAD_FORMAT);
evt->tgt = tgt;
prli = &evt->iu.prli;
memset(prli, 0, sizeof(*prli));
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
prli->common.version = cpu_to_be32(2);
prli->target_wwpn = cpu_to_be64(tgt->wwpn);
} else {
prli->common.version = cpu_to_be32(1);
}
prli->common.opcode = cpu_to_be32(IBMVFC_PROCESS_LOGIN);
prli->common.length = cpu_to_be16(sizeof(*prli));
prli->scsi_id = cpu_to_be64(tgt->scsi_id);
prli->parms.type = IBMVFC_SCSI_FCP_TYPE;
prli->parms.flags = cpu_to_be16(IBMVFC_PRLI_EST_IMG_PAIR);
prli->parms.service_parms = cpu_to_be32(IBMVFC_PRLI_INITIATOR_FUNC);
prli->parms.service_parms |= cpu_to_be32(IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED);
if (cls3_error)
prli->parms.service_parms |= cpu_to_be32(IBMVFC_PRLI_RETRY);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);
if (ibmvfc_send_event(evt, vhost, default_timeout)) {
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
kref_put(&tgt->kref, ibmvfc_release_tgt);
} else
tgt_dbg(tgt, "Sent process login\n");
}
/**
* ibmvfc_tgt_plogi_done - Completion handler for Port Login
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_tgt_plogi_done(struct ibmvfc_event *evt)
{
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_port_login *rsp = &evt->xfer_iu->plogi;
u32 status = be16_to_cpu(rsp->common.status);
int level = IBMVFC_DEFAULT_LOG_LEVEL;
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
switch (status) {
case IBMVFC_MAD_SUCCESS:
tgt_dbg(tgt, "Port Login succeeded\n");
if (tgt->ids.port_name &&
tgt->ids.port_name != wwn_to_u64(rsp->service_parms.port_name)) {
vhost->reinit = 1;
tgt_dbg(tgt, "Port re-init required\n");
break;
}
tgt->ids.node_name = wwn_to_u64(rsp->service_parms.node_name);
tgt->ids.port_name = wwn_to_u64(rsp->service_parms.port_name);
tgt->ids.port_id = tgt->scsi_id;
memcpy(&tgt->service_parms, &rsp->service_parms,
sizeof(tgt->service_parms));
memcpy(&tgt->service_parms_change, &rsp->service_parms_change,
sizeof(tgt->service_parms_change));
ibmvfc_init_tgt(tgt, ibmvfc_tgt_send_prli);
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
case IBMVFC_MAD_CRQ_ERROR:
ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_plogi);
break;
case IBMVFC_MAD_FAILED:
default:
if (ibmvfc_retry_cmd(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)))
level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_plogi);
else
ibmvfc_del_tgt(tgt);
tgt_log(tgt, level, "Port Login failed: %s (%x:%x) %s (%x) %s (%x) rc=0x%02X\n",
ibmvfc_get_cmd_error(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)),
be16_to_cpu(rsp->status), be16_to_cpu(rsp->error),
ibmvfc_get_fc_type(be16_to_cpu(rsp->fc_type)), be16_to_cpu(rsp->fc_type),
ibmvfc_get_ls_explain(be16_to_cpu(rsp->fc_explain)), be16_to_cpu(rsp->fc_explain), status);
break;
}
kref_put(&tgt->kref, ibmvfc_release_tgt);
ibmvfc_free_event(evt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_tgt_send_plogi - Send PLOGI to the specified target
* @tgt: ibmvfc target struct
*
**/
static void ibmvfc_tgt_send_plogi(struct ibmvfc_target *tgt)
{
struct ibmvfc_port_login *plogi;
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
if (vhost->discovery_threads >= disc_threads)
return;
kref_get(&tgt->kref);
tgt->logo_rcvd = 0;
evt = ibmvfc_get_event(&vhost->crq);
vhost->discovery_threads++;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);
ibmvfc_init_event(evt, ibmvfc_tgt_plogi_done, IBMVFC_MAD_FORMAT);
evt->tgt = tgt;
plogi = &evt->iu.plogi;
memset(plogi, 0, sizeof(*plogi));
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
plogi->common.version = cpu_to_be32(2);
plogi->target_wwpn = cpu_to_be64(tgt->wwpn);
} else {
plogi->common.version = cpu_to_be32(1);
}
plogi->common.opcode = cpu_to_be32(IBMVFC_PORT_LOGIN);
plogi->common.length = cpu_to_be16(sizeof(*plogi));
plogi->scsi_id = cpu_to_be64(tgt->scsi_id);
if (ibmvfc_send_event(evt, vhost, default_timeout)) {
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
kref_put(&tgt->kref, ibmvfc_release_tgt);
} else
tgt_dbg(tgt, "Sent port login\n");
}
/**
* ibmvfc_tgt_implicit_logout_done - Completion handler for Implicit Logout MAD
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_tgt_implicit_logout_done(struct ibmvfc_event *evt)
{
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_implicit_logout *rsp = &evt->xfer_iu->implicit_logout;
u32 status = be16_to_cpu(rsp->common.status);
vhost->discovery_threads--;
ibmvfc_free_event(evt);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
switch (status) {
case IBMVFC_MAD_SUCCESS:
tgt_dbg(tgt, "Implicit Logout succeeded\n");
break;
case IBMVFC_MAD_DRIVER_FAILED:
kref_put(&tgt->kref, ibmvfc_release_tgt);
wake_up(&vhost->work_wait_q);
return;
case IBMVFC_MAD_FAILED:
default:
tgt_err(tgt, "Implicit Logout failed: rc=0x%02X\n", status);
break;
}
ibmvfc_init_tgt(tgt, ibmvfc_tgt_send_plogi);
kref_put(&tgt->kref, ibmvfc_release_tgt);
wake_up(&vhost->work_wait_q);
}
/**
* __ibmvfc_tgt_get_implicit_logout_evt - Allocate and init an event for implicit logout
* @tgt: ibmvfc target struct
* @done: Routine to call when the event is responded to
*
* Returns:
* Allocated and initialized ibmvfc_event struct
**/
static struct ibmvfc_event *__ibmvfc_tgt_get_implicit_logout_evt(struct ibmvfc_target *tgt,
void (*done) (struct ibmvfc_event *))
{
struct ibmvfc_implicit_logout *mad;
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
kref_get(&tgt->kref);
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, done, IBMVFC_MAD_FORMAT);
evt->tgt = tgt;
mad = &evt->iu.implicit_logout;
memset(mad, 0, sizeof(*mad));
mad->common.version = cpu_to_be32(1);
mad->common.opcode = cpu_to_be32(IBMVFC_IMPLICIT_LOGOUT);
mad->common.length = cpu_to_be16(sizeof(*mad));
mad->old_scsi_id = cpu_to_be64(tgt->scsi_id);
return evt;
}
/**
* ibmvfc_tgt_implicit_logout - Initiate an Implicit Logout for specified target
* @tgt: ibmvfc target struct
*
**/
static void ibmvfc_tgt_implicit_logout(struct ibmvfc_target *tgt)
{
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
if (vhost->discovery_threads >= disc_threads)
return;
vhost->discovery_threads++;
evt = __ibmvfc_tgt_get_implicit_logout_evt(tgt,
ibmvfc_tgt_implicit_logout_done);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);
if (ibmvfc_send_event(evt, vhost, default_timeout)) {
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
kref_put(&tgt->kref, ibmvfc_release_tgt);
} else
tgt_dbg(tgt, "Sent Implicit Logout\n");
}
/**
* ibmvfc_tgt_implicit_logout_and_del_done - Completion handler for Implicit Logout MAD
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_tgt_implicit_logout_and_del_done(struct ibmvfc_event *evt)
{
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_passthru_mad *mad = &evt->xfer_iu->passthru;
u32 status = be16_to_cpu(mad->common.status);
vhost->discovery_threads--;
ibmvfc_free_event(evt);
/*
* If our state is IBMVFC_HOST_OFFLINE, we could be unloading the
* driver in which case we need to free up all the targets. If we are
* not unloading, we will still go through a hard reset to get out of
* offline state, so there is no need to track the old targets in that
* case.
*/
if (status == IBMVFC_MAD_SUCCESS || vhost->state == IBMVFC_HOST_OFFLINE)
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
else
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT);
tgt_dbg(tgt, "Implicit Logout %s\n", (status == IBMVFC_MAD_SUCCESS) ? "succeeded" : "failed");
kref_put(&tgt->kref, ibmvfc_release_tgt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_tgt_implicit_logout_and_del - Initiate an Implicit Logout for specified target
* @tgt: ibmvfc target struct
*
**/
static void ibmvfc_tgt_implicit_logout_and_del(struct ibmvfc_target *tgt)
{
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
if (!vhost->logged_in) {
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
return;
}
if (vhost->discovery_threads >= disc_threads)
return;
vhost->discovery_threads++;
evt = __ibmvfc_tgt_get_implicit_logout_evt(tgt,
ibmvfc_tgt_implicit_logout_and_del_done);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT);
if (ibmvfc_send_event(evt, vhost, default_timeout)) {
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
kref_put(&tgt->kref, ibmvfc_release_tgt);
} else
tgt_dbg(tgt, "Sent Implicit Logout\n");
}
/**
* ibmvfc_tgt_move_login_done - Completion handler for Move Login
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_tgt_move_login_done(struct ibmvfc_event *evt)
{
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_move_login *rsp = &evt->xfer_iu->move_login;
u32 status = be16_to_cpu(rsp->common.status);
int level = IBMVFC_DEFAULT_LOG_LEVEL;
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
switch (status) {
case IBMVFC_MAD_SUCCESS:
tgt_dbg(tgt, "Move Login succeeded for new scsi_id: %llX\n", tgt->new_scsi_id);
tgt->ids.node_name = wwn_to_u64(rsp->service_parms.node_name);
tgt->ids.port_name = wwn_to_u64(rsp->service_parms.port_name);
tgt->scsi_id = tgt->new_scsi_id;
tgt->ids.port_id = tgt->scsi_id;
memcpy(&tgt->service_parms, &rsp->service_parms,
sizeof(tgt->service_parms));
memcpy(&tgt->service_parms_change, &rsp->service_parms_change,
sizeof(tgt->service_parms_change));
ibmvfc_init_tgt(tgt, ibmvfc_tgt_send_prli);
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
case IBMVFC_MAD_CRQ_ERROR:
ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_move_login);
break;
case IBMVFC_MAD_FAILED:
default:
level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_move_login);
tgt_log(tgt, level,
"Move Login failed: new scsi_id: %llX, flags:%x, vios_flags:%x, rc=0x%02X\n",
tgt->new_scsi_id, be32_to_cpu(rsp->flags), be16_to_cpu(rsp->vios_flags),
status);
break;
}
kref_put(&tgt->kref, ibmvfc_release_tgt);
ibmvfc_free_event(evt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_tgt_move_login - Initiate a move login for specified target
* @tgt: ibmvfc target struct
*
**/
static void ibmvfc_tgt_move_login(struct ibmvfc_target *tgt)
{
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_move_login *move;
struct ibmvfc_event *evt;
if (vhost->discovery_threads >= disc_threads)
return;
kref_get(&tgt->kref);
evt = ibmvfc_get_event(&vhost->crq);
vhost->discovery_threads++;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);
ibmvfc_init_event(evt, ibmvfc_tgt_move_login_done, IBMVFC_MAD_FORMAT);
evt->tgt = tgt;
move = &evt->iu.move_login;
memset(move, 0, sizeof(*move));
move->common.version = cpu_to_be32(1);
move->common.opcode = cpu_to_be32(IBMVFC_MOVE_LOGIN);
move->common.length = cpu_to_be16(sizeof(*move));
move->old_scsi_id = cpu_to_be64(tgt->scsi_id);
move->new_scsi_id = cpu_to_be64(tgt->new_scsi_id);
move->wwpn = cpu_to_be64(tgt->wwpn);
move->node_name = cpu_to_be64(tgt->ids.node_name);
if (ibmvfc_send_event(evt, vhost, default_timeout)) {
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
kref_put(&tgt->kref, ibmvfc_release_tgt);
} else
tgt_dbg(tgt, "Sent Move Login for new scsi_id: %llX\n", tgt->new_scsi_id);
}
/**
* ibmvfc_adisc_needs_plogi - Does device need PLOGI?
* @mad: ibmvfc passthru mad struct
* @tgt: ibmvfc target struct
*
* Returns:
* 1 if PLOGI needed / 0 if PLOGI not needed
**/
static int ibmvfc_adisc_needs_plogi(struct ibmvfc_passthru_mad *mad,
struct ibmvfc_target *tgt)
{
if (wwn_to_u64((u8 *)&mad->fc_iu.response[2]) != tgt->ids.port_name)
return 1;
if (wwn_to_u64((u8 *)&mad->fc_iu.response[4]) != tgt->ids.node_name)
return 1;
if (be32_to_cpu(mad->fc_iu.response[6]) != tgt->scsi_id)
return 1;
return 0;
}
/**
* ibmvfc_tgt_adisc_done - Completion handler for ADISC
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_tgt_adisc_done(struct ibmvfc_event *evt)
{
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_passthru_mad *mad = &evt->xfer_iu->passthru;
u32 status = be16_to_cpu(mad->common.status);
u8 fc_reason, fc_explain;
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
del_timer(&tgt->timer);
switch (status) {
case IBMVFC_MAD_SUCCESS:
tgt_dbg(tgt, "ADISC succeeded\n");
if (ibmvfc_adisc_needs_plogi(mad, tgt))
ibmvfc_del_tgt(tgt);
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
case IBMVFC_MAD_FAILED:
default:
ibmvfc_del_tgt(tgt);
fc_reason = (be32_to_cpu(mad->fc_iu.response[1]) & 0x00ff0000) >> 16;
fc_explain = (be32_to_cpu(mad->fc_iu.response[1]) & 0x0000ff00) >> 8;
tgt_info(tgt, "ADISC failed: %s (%x:%x) %s (%x) %s (%x) rc=0x%02X\n",
ibmvfc_get_cmd_error(be16_to_cpu(mad->iu.status), be16_to_cpu(mad->iu.error)),
be16_to_cpu(mad->iu.status), be16_to_cpu(mad->iu.error),
ibmvfc_get_fc_type(fc_reason), fc_reason,
ibmvfc_get_ls_explain(fc_explain), fc_explain, status);
break;
}
kref_put(&tgt->kref, ibmvfc_release_tgt);
ibmvfc_free_event(evt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_init_passthru - Initialize an event struct for FC passthru
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_init_passthru(struct ibmvfc_event *evt)
{
struct ibmvfc_passthru_mad *mad = &evt->iu.passthru;
memset(mad, 0, sizeof(*mad));
mad->common.version = cpu_to_be32(1);
mad->common.opcode = cpu_to_be32(IBMVFC_PASSTHRU);
mad->common.length = cpu_to_be16(sizeof(*mad) - sizeof(mad->fc_iu) - sizeof(mad->iu));
mad->cmd_ioba.va = cpu_to_be64((u64)be64_to_cpu(evt->crq.ioba) +
offsetof(struct ibmvfc_passthru_mad, iu));
mad->cmd_ioba.len = cpu_to_be32(sizeof(mad->iu));
mad->iu.cmd_len = cpu_to_be32(sizeof(mad->fc_iu.payload));
mad->iu.rsp_len = cpu_to_be32(sizeof(mad->fc_iu.response));
mad->iu.cmd.va = cpu_to_be64((u64)be64_to_cpu(evt->crq.ioba) +
offsetof(struct ibmvfc_passthru_mad, fc_iu) +
offsetof(struct ibmvfc_passthru_fc_iu, payload));
mad->iu.cmd.len = cpu_to_be32(sizeof(mad->fc_iu.payload));
mad->iu.rsp.va = cpu_to_be64((u64)be64_to_cpu(evt->crq.ioba) +
offsetof(struct ibmvfc_passthru_mad, fc_iu) +
offsetof(struct ibmvfc_passthru_fc_iu, response));
mad->iu.rsp.len = cpu_to_be32(sizeof(mad->fc_iu.response));
}
/**
* ibmvfc_tgt_adisc_cancel_done - Completion handler when cancelling an ADISC
* @evt: ibmvfc event struct
*
* Just cleanup this event struct. Everything else is handled by
* the ADISC completion handler. If the ADISC never actually comes
* back, we still have the timer running on the ADISC event struct
* which will fire and cause the CRQ to get reset.
*
**/
static void ibmvfc_tgt_adisc_cancel_done(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_target *tgt = evt->tgt;
tgt_dbg(tgt, "ADISC cancel complete\n");
vhost->abort_threads--;
ibmvfc_free_event(evt);
kref_put(&tgt->kref, ibmvfc_release_tgt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_adisc_timeout - Handle an ADISC timeout
* @t: ibmvfc target struct
*
* If an ADISC times out, send a cancel. If the cancel times
* out, reset the CRQ. When the ADISC comes back as cancelled,
* log back into the target.
**/
static void ibmvfc_adisc_timeout(struct timer_list *t)
{
struct ibmvfc_target *tgt = from_timer(tgt, t, timer);
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
struct ibmvfc_tmf *tmf;
unsigned long flags;
int rc;
tgt_dbg(tgt, "ADISC timeout\n");
spin_lock_irqsave(vhost->host->host_lock, flags);
if (vhost->abort_threads >= disc_threads ||
tgt->action != IBMVFC_TGT_ACTION_INIT_WAIT ||
vhost->state != IBMVFC_INITIALIZING ||
vhost->action != IBMVFC_HOST_ACTION_QUERY_TGTS) {
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return;
}
vhost->abort_threads++;
kref_get(&tgt->kref);
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_tgt_adisc_cancel_done, IBMVFC_MAD_FORMAT);
evt->tgt = tgt;
tmf = &evt->iu.tmf;
memset(tmf, 0, sizeof(*tmf));
if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) {
tmf->common.version = cpu_to_be32(2);
tmf->target_wwpn = cpu_to_be64(tgt->wwpn);
} else {
tmf->common.version = cpu_to_be32(1);
}
tmf->common.opcode = cpu_to_be32(IBMVFC_TMF_MAD);
tmf->common.length = cpu_to_be16(sizeof(*tmf));
tmf->scsi_id = cpu_to_be64(tgt->scsi_id);
tmf->cancel_key = cpu_to_be32(tgt->cancel_key);
rc = ibmvfc_send_event(evt, vhost, default_timeout);
if (rc) {
tgt_err(tgt, "Failed to send cancel event for ADISC. rc=%d\n", rc);
vhost->abort_threads--;
kref_put(&tgt->kref, ibmvfc_release_tgt);
__ibmvfc_reset_host(vhost);
} else
tgt_dbg(tgt, "Attempting to cancel ADISC\n");
spin_unlock_irqrestore(vhost->host->host_lock, flags);
}
/**
* ibmvfc_tgt_adisc - Initiate an ADISC for specified target
* @tgt: ibmvfc target struct
*
* When sending an ADISC we end up with two timers running. The
* first timer is the timer in the ibmvfc target struct. If this
* fires, we send a cancel to the target. The second timer is the
* timer on the ibmvfc event for the ADISC, which is longer. If that
* fires, it means the ADISC timed out and our attempt to cancel it
* also failed, so we need to reset the CRQ.
**/
static void ibmvfc_tgt_adisc(struct ibmvfc_target *tgt)
{
struct ibmvfc_passthru_mad *mad;
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
if (vhost->discovery_threads >= disc_threads)
return;
kref_get(&tgt->kref);
evt = ibmvfc_get_event(&vhost->crq);
vhost->discovery_threads++;
ibmvfc_init_event(evt, ibmvfc_tgt_adisc_done, IBMVFC_MAD_FORMAT);
evt->tgt = tgt;
ibmvfc_init_passthru(evt);
mad = &evt->iu.passthru;
mad->iu.flags = cpu_to_be32(IBMVFC_FC_ELS);
mad->iu.scsi_id = cpu_to_be64(tgt->scsi_id);
mad->iu.cancel_key = cpu_to_be32(tgt->cancel_key);
mad->fc_iu.payload[0] = cpu_to_be32(IBMVFC_ADISC);
memcpy(&mad->fc_iu.payload[2], &vhost->login_buf->resp.port_name,
sizeof(vhost->login_buf->resp.port_name));
memcpy(&mad->fc_iu.payload[4], &vhost->login_buf->resp.node_name,
sizeof(vhost->login_buf->resp.node_name));
mad->fc_iu.payload[6] = cpu_to_be32(be64_to_cpu(vhost->login_buf->resp.scsi_id) & 0x00ffffff);
if (timer_pending(&tgt->timer))
mod_timer(&tgt->timer, jiffies + (IBMVFC_ADISC_TIMEOUT * HZ));
else {
tgt->timer.expires = jiffies + (IBMVFC_ADISC_TIMEOUT * HZ);
add_timer(&tgt->timer);
}
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);
if (ibmvfc_send_event(evt, vhost, IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT)) {
vhost->discovery_threads--;
del_timer(&tgt->timer);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
kref_put(&tgt->kref, ibmvfc_release_tgt);
} else
tgt_dbg(tgt, "Sent ADISC\n");
}
/**
* ibmvfc_tgt_query_target_done - Completion handler for Query Target MAD
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_tgt_query_target_done(struct ibmvfc_event *evt)
{
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_query_tgt *rsp = &evt->xfer_iu->query_tgt;
u32 status = be16_to_cpu(rsp->common.status);
int level = IBMVFC_DEFAULT_LOG_LEVEL;
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
switch (status) {
case IBMVFC_MAD_SUCCESS:
tgt_dbg(tgt, "Query Target succeeded\n");
if (be64_to_cpu(rsp->scsi_id) != tgt->scsi_id)
ibmvfc_del_tgt(tgt);
else
ibmvfc_init_tgt(tgt, ibmvfc_tgt_adisc);
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
case IBMVFC_MAD_CRQ_ERROR:
ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_query_target);
break;
case IBMVFC_MAD_FAILED:
default:
if ((be16_to_cpu(rsp->status) & IBMVFC_FABRIC_MAPPED) == IBMVFC_FABRIC_MAPPED &&
be16_to_cpu(rsp->error) == IBMVFC_UNABLE_TO_PERFORM_REQ &&
be16_to_cpu(rsp->fc_explain) == IBMVFC_PORT_NAME_NOT_REG)
ibmvfc_del_tgt(tgt);
else if (ibmvfc_retry_cmd(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)))
level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_query_target);
else
ibmvfc_del_tgt(tgt);
tgt_log(tgt, level, "Query Target failed: %s (%x:%x) %s (%x) %s (%x) rc=0x%02X\n",
ibmvfc_get_cmd_error(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)),
be16_to_cpu(rsp->status), be16_to_cpu(rsp->error),
ibmvfc_get_fc_type(be16_to_cpu(rsp->fc_type)), be16_to_cpu(rsp->fc_type),
ibmvfc_get_gs_explain(be16_to_cpu(rsp->fc_explain)), be16_to_cpu(rsp->fc_explain),
status);
break;
}
kref_put(&tgt->kref, ibmvfc_release_tgt);
ibmvfc_free_event(evt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_tgt_query_target - Initiate a Query Target for specified target
* @tgt: ibmvfc target struct
*
**/
static void ibmvfc_tgt_query_target(struct ibmvfc_target *tgt)
{
struct ibmvfc_query_tgt *query_tgt;
struct ibmvfc_host *vhost = tgt->vhost;
struct ibmvfc_event *evt;
if (vhost->discovery_threads >= disc_threads)
return;
kref_get(&tgt->kref);
evt = ibmvfc_get_event(&vhost->crq);
vhost->discovery_threads++;
evt->tgt = tgt;
ibmvfc_init_event(evt, ibmvfc_tgt_query_target_done, IBMVFC_MAD_FORMAT);
query_tgt = &evt->iu.query_tgt;
memset(query_tgt, 0, sizeof(*query_tgt));
query_tgt->common.version = cpu_to_be32(1);
query_tgt->common.opcode = cpu_to_be32(IBMVFC_QUERY_TARGET);
query_tgt->common.length = cpu_to_be16(sizeof(*query_tgt));
query_tgt->wwpn = cpu_to_be64(tgt->ids.port_name);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);
if (ibmvfc_send_event(evt, vhost, default_timeout)) {
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
kref_put(&tgt->kref, ibmvfc_release_tgt);
} else
tgt_dbg(tgt, "Sent Query Target\n");
}
/**
* ibmvfc_alloc_target - Allocate and initialize an ibmvfc target
* @vhost: ibmvfc host struct
* @target: Holds SCSI ID to allocate target forand the WWPN
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_alloc_target(struct ibmvfc_host *vhost,
struct ibmvfc_discover_targets_entry *target)
{
struct ibmvfc_target *stgt = NULL;
struct ibmvfc_target *wtgt = NULL;
struct ibmvfc_target *tgt;
unsigned long flags;
u64 scsi_id = be32_to_cpu(target->scsi_id) & IBMVFC_DISC_TGT_SCSI_ID_MASK;
u64 wwpn = be64_to_cpu(target->wwpn);
/* Look to see if we already have a target allocated for this SCSI ID or WWPN */
spin_lock_irqsave(vhost->host->host_lock, flags);
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->wwpn == wwpn) {
wtgt = tgt;
break;
}
}
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->scsi_id == scsi_id) {
stgt = tgt;
break;
}
}
if (wtgt && !stgt) {
/*
* A WWPN target has moved and we still are tracking the old
* SCSI ID. The only way we should be able to get here is if
* we attempted to send an implicit logout for the old SCSI ID
* and it failed for some reason, such as there being I/O
* pending to the target. In this case, we will have already
* deleted the rport from the FC transport so we do a move
* login, which works even with I/O pending, however, if
* there is still I/O pending, it will stay outstanding, so
* we only do this if fast fail is disabled for the rport,
* otherwise we let terminate_rport_io clean up the port
* before we login at the new location.
*/
if (wtgt->action == IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT) {
if (wtgt->move_login) {
/*
* Do a move login here. The old target is no longer
* known to the transport layer We don't use the
* normal ibmvfc_set_tgt_action to set this, as we
* don't normally want to allow this state change.
*/
wtgt->new_scsi_id = scsi_id;
wtgt->action = IBMVFC_TGT_ACTION_INIT;
wtgt->init_retries = 0;
ibmvfc_init_tgt(wtgt, ibmvfc_tgt_move_login);
}
goto unlock_out;
} else {
tgt_err(wtgt, "Unexpected target state: %d, %p\n",
wtgt->action, wtgt->rport);
}
} else if (stgt) {
if (tgt->need_login)
ibmvfc_init_tgt(tgt, ibmvfc_tgt_implicit_logout);
goto unlock_out;
}
spin_unlock_irqrestore(vhost->host->host_lock, flags);
tgt = mempool_alloc(vhost->tgt_pool, GFP_NOIO);
memset(tgt, 0, sizeof(*tgt));
tgt->scsi_id = scsi_id;
tgt->wwpn = wwpn;
tgt->vhost = vhost;
tgt->need_login = 1;
timer_setup(&tgt->timer, ibmvfc_adisc_timeout, 0);
kref_init(&tgt->kref);
ibmvfc_init_tgt(tgt, ibmvfc_tgt_implicit_logout);
spin_lock_irqsave(vhost->host->host_lock, flags);
tgt->cancel_key = vhost->task_set++;
list_add_tail(&tgt->queue, &vhost->targets);
unlock_out:
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return 0;
}
/**
* ibmvfc_alloc_targets - Allocate and initialize ibmvfc targets
* @vhost: ibmvfc host struct
*
* Returns:
* 0 on success / other on failure
**/
static int ibmvfc_alloc_targets(struct ibmvfc_host *vhost)
{
int i, rc;
for (i = 0, rc = 0; !rc && i < vhost->num_targets; i++)
rc = ibmvfc_alloc_target(vhost, &vhost->disc_buf[i]);
return rc;
}
/**
* ibmvfc_discover_targets_done - Completion handler for discover targets MAD
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_discover_targets_done(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_discover_targets *rsp = &evt->xfer_iu->discover_targets;
u32 mad_status = be16_to_cpu(rsp->common.status);
int level = IBMVFC_DEFAULT_LOG_LEVEL;
switch (mad_status) {
case IBMVFC_MAD_SUCCESS:
ibmvfc_dbg(vhost, "Discover Targets succeeded\n");
vhost->num_targets = be32_to_cpu(rsp->num_written);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_ALLOC_TGTS);
break;
case IBMVFC_MAD_FAILED:
level += ibmvfc_retry_host_init(vhost);
ibmvfc_log(vhost, level, "Discover Targets failed: %s (%x:%x)\n",
ibmvfc_get_cmd_error(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)),
be16_to_cpu(rsp->status), be16_to_cpu(rsp->error));
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
default:
dev_err(vhost->dev, "Invalid Discover Targets response: 0x%x\n", mad_status);
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
break;
}
ibmvfc_free_event(evt);
wake_up(&vhost->work_wait_q);
}
/**
* ibmvfc_discover_targets - Send Discover Targets MAD
* @vhost: ibmvfc host struct
*
**/
static void ibmvfc_discover_targets(struct ibmvfc_host *vhost)
{
struct ibmvfc_discover_targets *mad;
struct ibmvfc_event *evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_discover_targets_done, IBMVFC_MAD_FORMAT);
mad = &evt->iu.discover_targets;
memset(mad, 0, sizeof(*mad));
mad->common.version = cpu_to_be32(1);
mad->common.opcode = cpu_to_be32(IBMVFC_DISC_TARGETS);
mad->common.length = cpu_to_be16(sizeof(*mad));
mad->bufflen = cpu_to_be32(vhost->disc_buf_sz);
mad->buffer.va = cpu_to_be64(vhost->disc_buf_dma);
mad->buffer.len = cpu_to_be32(vhost->disc_buf_sz);
mad->flags = cpu_to_be32(IBMVFC_DISC_TGT_PORT_ID_WWPN_LIST);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT_WAIT);
if (!ibmvfc_send_event(evt, vhost, default_timeout))
ibmvfc_dbg(vhost, "Sent discover targets\n");
else
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
}
static void ibmvfc_channel_setup_done(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_channel_setup *setup = vhost->channel_setup_buf;
struct ibmvfc_scsi_channels *scrqs = &vhost->scsi_scrqs;
u32 mad_status = be16_to_cpu(evt->xfer_iu->channel_setup.common.status);
int level = IBMVFC_DEFAULT_LOG_LEVEL;
int flags, active_queues, i;
ibmvfc_free_event(evt);
switch (mad_status) {
case IBMVFC_MAD_SUCCESS:
ibmvfc_dbg(vhost, "Channel Setup succeeded\n");
flags = be32_to_cpu(setup->flags);
vhost->do_enquiry = 0;
active_queues = be32_to_cpu(setup->num_scsi_subq_channels);
scrqs->active_queues = active_queues;
if (flags & IBMVFC_CHANNELS_CANCELED) {
ibmvfc_dbg(vhost, "Channels Canceled\n");
vhost->using_channels = 0;
} else {
if (active_queues)
vhost->using_channels = 1;
for (i = 0; i < active_queues; i++)
scrqs->scrqs[i].vios_cookie =
be64_to_cpu(setup->channel_handles[i]);
ibmvfc_dbg(vhost, "Using %u channels\n",
vhost->scsi_scrqs.active_queues);
}
break;
case IBMVFC_MAD_FAILED:
level += ibmvfc_retry_host_init(vhost);
ibmvfc_log(vhost, level, "Channel Setup failed\n");
fallthrough;
case IBMVFC_MAD_DRIVER_FAILED:
return;
default:
dev_err(vhost->dev, "Invalid Channel Setup response: 0x%x\n",
mad_status);
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
return;
}
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY);
wake_up(&vhost->work_wait_q);
}
static void ibmvfc_channel_setup(struct ibmvfc_host *vhost)
{
struct ibmvfc_channel_setup_mad *mad;
struct ibmvfc_channel_setup *setup_buf = vhost->channel_setup_buf;
struct ibmvfc_event *evt = ibmvfc_get_event(&vhost->crq);
struct ibmvfc_scsi_channels *scrqs = &vhost->scsi_scrqs;
unsigned int num_channels =
min(vhost->client_scsi_channels, vhost->max_vios_scsi_channels);
int i;
memset(setup_buf, 0, sizeof(*setup_buf));
if (num_channels == 0)
setup_buf->flags = cpu_to_be32(IBMVFC_CANCEL_CHANNELS);
else {
setup_buf->num_scsi_subq_channels = cpu_to_be32(num_channels);
for (i = 0; i < num_channels; i++)
setup_buf->channel_handles[i] = cpu_to_be64(scrqs->scrqs[i].cookie);
}
ibmvfc_init_event(evt, ibmvfc_channel_setup_done, IBMVFC_MAD_FORMAT);
mad = &evt->iu.channel_setup;
memset(mad, 0, sizeof(*mad));
mad->common.version = cpu_to_be32(1);
mad->common.opcode = cpu_to_be32(IBMVFC_CHANNEL_SETUP);
mad->common.length = cpu_to_be16(sizeof(*mad));
mad->buffer.va = cpu_to_be64(vhost->channel_setup_dma);
mad->buffer.len = cpu_to_be32(sizeof(*vhost->channel_setup_buf));
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT_WAIT);
if (!ibmvfc_send_event(evt, vhost, default_timeout))
ibmvfc_dbg(vhost, "Sent channel setup\n");
else
ibmvfc_link_down(vhost, IBMVFC_LINK_DOWN);
}
static void ibmvfc_channel_enquiry_done(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_channel_enquiry *rsp = &evt->xfer_iu->channel_enquiry;
u32 mad_status = be16_to_cpu(rsp->common.status);
int level = IBMVFC_DEFAULT_LOG_LEVEL;
switch (mad_status) {
case IBMVFC_MAD_SUCCESS:
ibmvfc_dbg(vhost, "Channel Enquiry succeeded\n");
vhost->max_vios_scsi_channels = be32_to_cpu(rsp->num_scsi_subq_channels);
ibmvfc_free_event(evt);
break;
case IBMVFC_MAD_FAILED:
level += ibmvfc_retry_host_init(vhost);
ibmvfc_log(vhost, level, "Channel Enquiry failed\n");
fallthrough;
case IBMVFC_MAD_DRIVER_FAILED:
ibmvfc_free_event(evt);
return;
default:
dev_err(vhost->dev, "Invalid Channel Enquiry response: 0x%x\n",
mad_status);
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
ibmvfc_free_event(evt);
return;
}
ibmvfc_channel_setup(vhost);
}
static void ibmvfc_channel_enquiry(struct ibmvfc_host *vhost)
{
struct ibmvfc_channel_enquiry *mad;
struct ibmvfc_event *evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_channel_enquiry_done, IBMVFC_MAD_FORMAT);
mad = &evt->iu.channel_enquiry;
memset(mad, 0, sizeof(*mad));
mad->common.version = cpu_to_be32(1);
mad->common.opcode = cpu_to_be32(IBMVFC_CHANNEL_ENQUIRY);
mad->common.length = cpu_to_be16(sizeof(*mad));
if (mig_channels_only)
mad->flags |= cpu_to_be32(IBMVFC_NO_CHANNELS_TO_CRQ_SUPPORT);
if (mig_no_less_channels)
mad->flags |= cpu_to_be32(IBMVFC_NO_N_TO_M_CHANNELS_SUPPORT);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT_WAIT);
if (!ibmvfc_send_event(evt, vhost, default_timeout))
ibmvfc_dbg(vhost, "Send channel enquiry\n");
else
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
}
/**
* ibmvfc_npiv_login_done - Completion handler for NPIV Login
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_npiv_login_done(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
u32 mad_status = be16_to_cpu(evt->xfer_iu->npiv_login.common.status);
struct ibmvfc_npiv_login_resp *rsp = &vhost->login_buf->resp;
unsigned int npiv_max_sectors;
int level = IBMVFC_DEFAULT_LOG_LEVEL;
switch (mad_status) {
case IBMVFC_MAD_SUCCESS:
ibmvfc_free_event(evt);
break;
case IBMVFC_MAD_FAILED:
if (ibmvfc_retry_cmd(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)))
level += ibmvfc_retry_host_init(vhost);
else
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
ibmvfc_log(vhost, level, "NPIV Login failed: %s (%x:%x)\n",
ibmvfc_get_cmd_error(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)),
be16_to_cpu(rsp->status), be16_to_cpu(rsp->error));
ibmvfc_free_event(evt);
return;
case IBMVFC_MAD_CRQ_ERROR:
ibmvfc_retry_host_init(vhost);
fallthrough;
case IBMVFC_MAD_DRIVER_FAILED:
ibmvfc_free_event(evt);
return;
default:
dev_err(vhost->dev, "Invalid NPIV Login response: 0x%x\n", mad_status);
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
ibmvfc_free_event(evt);
return;
}
vhost->client_migrated = 0;
if (!(be32_to_cpu(rsp->flags) & IBMVFC_NATIVE_FC)) {
dev_err(vhost->dev, "Virtual adapter does not support FC. %x\n",
rsp->flags);
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
wake_up(&vhost->work_wait_q);
return;
}
if (be32_to_cpu(rsp->max_cmds) <= IBMVFC_NUM_INTERNAL_REQ) {
dev_err(vhost->dev, "Virtual adapter supported queue depth too small: %d\n",
rsp->max_cmds);
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
wake_up(&vhost->work_wait_q);
return;
}
vhost->logged_in = 1;
npiv_max_sectors = min((uint)(be64_to_cpu(rsp->max_dma_len) >> 9), IBMVFC_MAX_SECTORS);
dev_info(vhost->dev, "Host partition: %s, device: %s %s %s max sectors %u\n",
rsp->partition_name, rsp->device_name, rsp->port_loc_code,
rsp->drc_name, npiv_max_sectors);
fc_host_fabric_name(vhost->host) = be64_to_cpu(rsp->node_name);
fc_host_node_name(vhost->host) = be64_to_cpu(rsp->node_name);
fc_host_port_name(vhost->host) = be64_to_cpu(rsp->port_name);
fc_host_port_id(vhost->host) = be64_to_cpu(rsp->scsi_id);
fc_host_port_type(vhost->host) = FC_PORTTYPE_NPIV;
fc_host_supported_classes(vhost->host) = 0;
if (be32_to_cpu(rsp->service_parms.class1_parms[0]) & 0x80000000)
fc_host_supported_classes(vhost->host) |= FC_COS_CLASS1;
if (be32_to_cpu(rsp->service_parms.class2_parms[0]) & 0x80000000)
fc_host_supported_classes(vhost->host) |= FC_COS_CLASS2;
if (be32_to_cpu(rsp->service_parms.class3_parms[0]) & 0x80000000)
fc_host_supported_classes(vhost->host) |= FC_COS_CLASS3;
fc_host_maxframe_size(vhost->host) =
be16_to_cpu(rsp->service_parms.common.bb_rcv_sz) & 0x0fff;
vhost->host->can_queue = be32_to_cpu(rsp->max_cmds) - IBMVFC_NUM_INTERNAL_REQ;
vhost->host->max_sectors = npiv_max_sectors;
if (ibmvfc_check_caps(vhost, IBMVFC_CAN_SUPPORT_CHANNELS) && vhost->do_enquiry) {
ibmvfc_channel_enquiry(vhost);
} else {
vhost->do_enquiry = 0;
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY);
wake_up(&vhost->work_wait_q);
}
}
/**
* ibmvfc_npiv_login - Sends NPIV login
* @vhost: ibmvfc host struct
*
**/
static void ibmvfc_npiv_login(struct ibmvfc_host *vhost)
{
struct ibmvfc_npiv_login_mad *mad;
struct ibmvfc_event *evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_gather_partition_info(vhost);
ibmvfc_set_login_info(vhost);
ibmvfc_init_event(evt, ibmvfc_npiv_login_done, IBMVFC_MAD_FORMAT);
memcpy(vhost->login_buf, &vhost->login_info, sizeof(vhost->login_info));
mad = &evt->iu.npiv_login;
memset(mad, 0, sizeof(struct ibmvfc_npiv_login_mad));
mad->common.version = cpu_to_be32(1);
mad->common.opcode = cpu_to_be32(IBMVFC_NPIV_LOGIN);
mad->common.length = cpu_to_be16(sizeof(struct ibmvfc_npiv_login_mad));
mad->buffer.va = cpu_to_be64(vhost->login_buf_dma);
mad->buffer.len = cpu_to_be32(sizeof(*vhost->login_buf));
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT_WAIT);
if (!ibmvfc_send_event(evt, vhost, default_timeout))
ibmvfc_dbg(vhost, "Sent NPIV login\n");
else
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
}
/**
* ibmvfc_npiv_logout_done - Completion handler for NPIV Logout
* @evt: ibmvfc event struct
*
**/
static void ibmvfc_npiv_logout_done(struct ibmvfc_event *evt)
{
struct ibmvfc_host *vhost = evt->vhost;
u32 mad_status = be16_to_cpu(evt->xfer_iu->npiv_logout.common.status);
ibmvfc_free_event(evt);
switch (mad_status) {
case IBMVFC_MAD_SUCCESS:
if (list_empty(&vhost->crq.sent) &&
vhost->action == IBMVFC_HOST_ACTION_LOGO_WAIT) {
ibmvfc_init_host(vhost);
return;
}
break;
case IBMVFC_MAD_FAILED:
case IBMVFC_MAD_NOT_SUPPORTED:
case IBMVFC_MAD_CRQ_ERROR:
case IBMVFC_MAD_DRIVER_FAILED:
default:
ibmvfc_dbg(vhost, "NPIV Logout failed. 0x%X\n", mad_status);
break;
}
ibmvfc_hard_reset_host(vhost);
}
/**
* ibmvfc_npiv_logout - Issue an NPIV Logout
* @vhost: ibmvfc host struct
*
**/
static void ibmvfc_npiv_logout(struct ibmvfc_host *vhost)
{
struct ibmvfc_npiv_logout_mad *mad;
struct ibmvfc_event *evt;
evt = ibmvfc_get_event(&vhost->crq);
ibmvfc_init_event(evt, ibmvfc_npiv_logout_done, IBMVFC_MAD_FORMAT);
mad = &evt->iu.npiv_logout;
memset(mad, 0, sizeof(*mad));
mad->common.version = cpu_to_be32(1);
mad->common.opcode = cpu_to_be32(IBMVFC_NPIV_LOGOUT);
mad->common.length = cpu_to_be16(sizeof(struct ibmvfc_npiv_logout_mad));
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_LOGO_WAIT);
if (!ibmvfc_send_event(evt, vhost, default_timeout))
ibmvfc_dbg(vhost, "Sent NPIV logout\n");
else
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
}
/**
* ibmvfc_dev_init_to_do - Is there target initialization work to do?
* @vhost: ibmvfc host struct
*
* Returns:
* 1 if work to do / 0 if not
**/
static int ibmvfc_dev_init_to_do(struct ibmvfc_host *vhost)
{
struct ibmvfc_target *tgt;
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->action == IBMVFC_TGT_ACTION_INIT ||
tgt->action == IBMVFC_TGT_ACTION_INIT_WAIT)
return 1;
}
return 0;
}
/**
* ibmvfc_dev_logo_to_do - Is there target logout work to do?
* @vhost: ibmvfc host struct
*
* Returns:
* 1 if work to do / 0 if not
**/
static int ibmvfc_dev_logo_to_do(struct ibmvfc_host *vhost)
{
struct ibmvfc_target *tgt;
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->action == IBMVFC_TGT_ACTION_LOGOUT_RPORT ||
tgt->action == IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT)
return 1;
}
return 0;
}
/**
* __ibmvfc_work_to_do - Is there task level work to do? (no locking)
* @vhost: ibmvfc host struct
*
* Returns:
* 1 if work to do / 0 if not
**/
static int __ibmvfc_work_to_do(struct ibmvfc_host *vhost)
{
struct ibmvfc_target *tgt;
if (kthread_should_stop())
return 1;
switch (vhost->action) {
case IBMVFC_HOST_ACTION_NONE:
case IBMVFC_HOST_ACTION_INIT_WAIT:
case IBMVFC_HOST_ACTION_LOGO_WAIT:
return 0;
case IBMVFC_HOST_ACTION_TGT_INIT:
case IBMVFC_HOST_ACTION_QUERY_TGTS:
if (vhost->discovery_threads == disc_threads)
return 0;
list_for_each_entry(tgt, &vhost->targets, queue)
if (tgt->action == IBMVFC_TGT_ACTION_INIT)
return 1;
list_for_each_entry(tgt, &vhost->targets, queue)
if (tgt->action == IBMVFC_TGT_ACTION_INIT_WAIT)
return 0;
return 1;
case IBMVFC_HOST_ACTION_TGT_DEL:
case IBMVFC_HOST_ACTION_TGT_DEL_FAILED:
if (vhost->discovery_threads == disc_threads)
return 0;
list_for_each_entry(tgt, &vhost->targets, queue)
if (tgt->action == IBMVFC_TGT_ACTION_LOGOUT_RPORT)
return 1;
list_for_each_entry(tgt, &vhost->targets, queue)
if (tgt->action == IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT)
return 0;
return 1;
case IBMVFC_HOST_ACTION_LOGO:
case IBMVFC_HOST_ACTION_INIT:
case IBMVFC_HOST_ACTION_ALLOC_TGTS:
case IBMVFC_HOST_ACTION_QUERY:
case IBMVFC_HOST_ACTION_RESET:
case IBMVFC_HOST_ACTION_REENABLE:
default:
break;
}
return 1;
}
/**
* ibmvfc_work_to_do - Is there task level work to do?
* @vhost: ibmvfc host struct
*
* Returns:
* 1 if work to do / 0 if not
**/
static int ibmvfc_work_to_do(struct ibmvfc_host *vhost)
{
unsigned long flags;
int rc;
spin_lock_irqsave(vhost->host->host_lock, flags);
rc = __ibmvfc_work_to_do(vhost);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return rc;
}
/**
* ibmvfc_log_ae - Log async events if necessary
* @vhost: ibmvfc host struct
* @events: events to log
*
**/
static void ibmvfc_log_ae(struct ibmvfc_host *vhost, int events)
{
if (events & IBMVFC_AE_RSCN)
fc_host_post_event(vhost->host, fc_get_event_number(), FCH_EVT_RSCN, 0);
if ((events & IBMVFC_AE_LINKDOWN) &&
vhost->state >= IBMVFC_HALTED)
fc_host_post_event(vhost->host, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
if ((events & IBMVFC_AE_LINKUP) &&
vhost->state == IBMVFC_INITIALIZING)
fc_host_post_event(vhost->host, fc_get_event_number(), FCH_EVT_LINKUP, 0);
}
/**
* ibmvfc_tgt_add_rport - Tell the FC transport about a new remote port
* @tgt: ibmvfc target struct
*
**/
static void ibmvfc_tgt_add_rport(struct ibmvfc_target *tgt)
{
struct ibmvfc_host *vhost = tgt->vhost;
struct fc_rport *rport;
unsigned long flags;
tgt_dbg(tgt, "Adding rport\n");
rport = fc_remote_port_add(vhost->host, 0, &tgt->ids);
spin_lock_irqsave(vhost->host->host_lock, flags);
if (rport && tgt->action == IBMVFC_TGT_ACTION_DEL_RPORT) {
tgt_dbg(tgt, "Deleting rport\n");
list_del(&tgt->queue);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DELETED_RPORT);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
fc_remote_port_delete(rport);
del_timer_sync(&tgt->timer);
kref_put(&tgt->kref, ibmvfc_release_tgt);
return;
} else if (rport && tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
tgt_dbg(tgt, "Deleting rport with outstanding I/O\n");
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT);
tgt->rport = NULL;
tgt->init_retries = 0;
spin_unlock_irqrestore(vhost->host->host_lock, flags);
fc_remote_port_delete(rport);
return;
} else if (rport && tgt->action == IBMVFC_TGT_ACTION_DELETED_RPORT) {
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return;
}
if (rport) {
tgt_dbg(tgt, "rport add succeeded\n");
tgt->rport = rport;
rport->maxframe_size = be16_to_cpu(tgt->service_parms.common.bb_rcv_sz) & 0x0fff;
rport->supported_classes = 0;
tgt->target_id = rport->scsi_target_id;
if (be32_to_cpu(tgt->service_parms.class1_parms[0]) & 0x80000000)
rport->supported_classes |= FC_COS_CLASS1;
if (be32_to_cpu(tgt->service_parms.class2_parms[0]) & 0x80000000)
rport->supported_classes |= FC_COS_CLASS2;
if (be32_to_cpu(tgt->service_parms.class3_parms[0]) & 0x80000000)
rport->supported_classes |= FC_COS_CLASS3;
if (rport->rqst_q)
blk_queue_max_segments(rport->rqst_q, 1);
} else
tgt_dbg(tgt, "rport add failed\n");
spin_unlock_irqrestore(vhost->host->host_lock, flags);
}
/**
* ibmvfc_do_work - Do task level work
* @vhost: ibmvfc host struct
*
**/
static void ibmvfc_do_work(struct ibmvfc_host *vhost)
{
struct ibmvfc_target *tgt;
unsigned long flags;
struct fc_rport *rport;
LIST_HEAD(purge);
int rc;
ibmvfc_log_ae(vhost, vhost->events_to_log);
spin_lock_irqsave(vhost->host->host_lock, flags);
vhost->events_to_log = 0;
switch (vhost->action) {
case IBMVFC_HOST_ACTION_NONE:
case IBMVFC_HOST_ACTION_LOGO_WAIT:
case IBMVFC_HOST_ACTION_INIT_WAIT:
break;
case IBMVFC_HOST_ACTION_RESET:
list_splice_init(&vhost->purge, &purge);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ibmvfc_complete_purge(&purge);
rc = ibmvfc_reset_crq(vhost);
spin_lock_irqsave(vhost->host->host_lock, flags);
if (!rc || rc == H_CLOSED)
vio_enable_interrupts(to_vio_dev(vhost->dev));
if (vhost->action == IBMVFC_HOST_ACTION_RESET) {
/*
* The only action we could have changed to would have
* been reenable, in which case, we skip the rest of
* this path and wait until we've done the re-enable
* before sending the crq init.
*/
vhost->action = IBMVFC_HOST_ACTION_TGT_DEL;
if (rc || (rc = ibmvfc_send_crq_init(vhost)) ||
(rc = vio_enable_interrupts(to_vio_dev(vhost->dev)))) {
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
dev_err(vhost->dev, "Error after reset (rc=%d)\n", rc);
}
}
break;
case IBMVFC_HOST_ACTION_REENABLE:
list_splice_init(&vhost->purge, &purge);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ibmvfc_complete_purge(&purge);
rc = ibmvfc_reenable_crq_queue(vhost);
spin_lock_irqsave(vhost->host->host_lock, flags);
if (vhost->action == IBMVFC_HOST_ACTION_REENABLE) {
/*
* The only action we could have changed to would have
* been reset, in which case, we skip the rest of this
* path and wait until we've done the reset before
* sending the crq init.
*/
vhost->action = IBMVFC_HOST_ACTION_TGT_DEL;
if (rc || (rc = ibmvfc_send_crq_init(vhost))) {
ibmvfc_link_down(vhost, IBMVFC_LINK_DEAD);
dev_err(vhost->dev, "Error after enable (rc=%d)\n", rc);
}
}
break;
case IBMVFC_HOST_ACTION_LOGO:
vhost->job_step(vhost);
break;
case IBMVFC_HOST_ACTION_INIT:
BUG_ON(vhost->state != IBMVFC_INITIALIZING);
if (vhost->delay_init) {
vhost->delay_init = 0;
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ssleep(15);
return;
} else
vhost->job_step(vhost);
break;
case IBMVFC_HOST_ACTION_QUERY:
list_for_each_entry(tgt, &vhost->targets, queue)
ibmvfc_init_tgt(tgt, ibmvfc_tgt_query_target);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY_TGTS);
break;
case IBMVFC_HOST_ACTION_QUERY_TGTS:
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->action == IBMVFC_TGT_ACTION_INIT) {
tgt->job_step(tgt);
break;
}
}
if (!ibmvfc_dev_init_to_do(vhost))
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_TGT_DEL);
break;
case IBMVFC_HOST_ACTION_TGT_DEL:
case IBMVFC_HOST_ACTION_TGT_DEL_FAILED:
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->action == IBMVFC_TGT_ACTION_LOGOUT_RPORT) {
tgt->job_step(tgt);
break;
}
}
if (ibmvfc_dev_logo_to_do(vhost)) {
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return;
}
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->action == IBMVFC_TGT_ACTION_DEL_RPORT) {
tgt_dbg(tgt, "Deleting rport\n");
rport = tgt->rport;
tgt->rport = NULL;
list_del(&tgt->queue);
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DELETED_RPORT);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (rport)
fc_remote_port_delete(rport);
del_timer_sync(&tgt->timer);
kref_put(&tgt->kref, ibmvfc_release_tgt);
return;
} else if (tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) {
tgt_dbg(tgt, "Deleting rport with I/O outstanding\n");
rport = tgt->rport;
tgt->rport = NULL;
tgt->init_retries = 0;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT);
/*
* If fast fail is enabled, we wait for it to fire and then clean up
* the old port, since we expect the fast fail timer to clean up the
* outstanding I/O faster than waiting for normal command timeouts.
* However, if fast fail is disabled, any I/O outstanding to the
* rport LUNs will stay outstanding indefinitely, since the EH handlers
* won't get invoked for I/O's timing out. If this is a NPIV failover
* scenario, the better alternative is to use the move login.
*/
if (rport && rport->fast_io_fail_tmo == -1)
tgt->move_login = 1;
spin_unlock_irqrestore(vhost->host->host_lock, flags);
if (rport)
fc_remote_port_delete(rport);
return;
}
}
if (vhost->state == IBMVFC_INITIALIZING) {
if (vhost->action == IBMVFC_HOST_ACTION_TGT_DEL_FAILED) {
if (vhost->reinit) {
vhost->reinit = 0;
scsi_block_requests(vhost->host);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
} else {
ibmvfc_set_host_state(vhost, IBMVFC_ACTIVE);
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_NONE);
wake_up(&vhost->init_wait_q);
schedule_work(&vhost->rport_add_work_q);
vhost->init_retries = 0;
spin_unlock_irqrestore(vhost->host->host_lock, flags);
scsi_unblock_requests(vhost->host);
}
return;
} else {
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT);
vhost->job_step = ibmvfc_discover_targets;
}
} else {
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_NONE);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
scsi_unblock_requests(vhost->host);
wake_up(&vhost->init_wait_q);
return;
}
break;
case IBMVFC_HOST_ACTION_ALLOC_TGTS:
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_TGT_INIT);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ibmvfc_alloc_targets(vhost);
spin_lock_irqsave(vhost->host->host_lock, flags);
break;
case IBMVFC_HOST_ACTION_TGT_INIT:
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->action == IBMVFC_TGT_ACTION_INIT) {
tgt->job_step(tgt);
break;
}
}
if (!ibmvfc_dev_init_to_do(vhost))
ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_TGT_DEL_FAILED);
break;
default:
break;
}
spin_unlock_irqrestore(vhost->host->host_lock, flags);
}
/**
* ibmvfc_work - Do task level work
* @data: ibmvfc host struct
*
* Returns:
* zero
**/
static int ibmvfc_work(void *data)
{
struct ibmvfc_host *vhost = data;
int rc;
set_user_nice(current, MIN_NICE);
while (1) {
rc = wait_event_interruptible(vhost->work_wait_q,
ibmvfc_work_to_do(vhost));
BUG_ON(rc);
if (kthread_should_stop())
break;
ibmvfc_do_work(vhost);
}
ibmvfc_dbg(vhost, "ibmvfc kthread exiting...\n");
return 0;
}
/**
* ibmvfc_alloc_queue - Allocate queue
* @vhost: ibmvfc host struct
* @queue: ibmvfc queue to allocate
* @fmt: queue format to allocate
*
* Returns:
* 0 on success / non-zero on failure
**/
static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost,
struct ibmvfc_queue *queue,
enum ibmvfc_msg_fmt fmt)
{
struct device *dev = vhost->dev;
size_t fmt_size;
unsigned int pool_size = 0;
ENTER;
spin_lock_init(&queue->_lock);
queue->q_lock = &queue->_lock;
switch (fmt) {
case IBMVFC_CRQ_FMT:
fmt_size = sizeof(*queue->msgs.crq);
pool_size = max_requests + IBMVFC_NUM_INTERNAL_REQ;
break;
case IBMVFC_ASYNC_FMT:
fmt_size = sizeof(*queue->msgs.async);
break;
case IBMVFC_SUB_CRQ_FMT:
fmt_size = sizeof(*queue->msgs.scrq);
/* We need one extra event for Cancel Commands */
pool_size = max_requests + 1;
break;
default:
dev_warn(dev, "Unknown command/response queue message format: %d\n", fmt);
return -EINVAL;
}
if (ibmvfc_init_event_pool(vhost, queue, pool_size)) {
dev_err(dev, "Couldn't initialize event pool.\n");
return -ENOMEM;
}
queue->msgs.handle = (void *)get_zeroed_page(GFP_KERNEL);
if (!queue->msgs.handle)
return -ENOMEM;
queue->msg_token = dma_map_single(dev, queue->msgs.handle, PAGE_SIZE,
DMA_BIDIRECTIONAL);
if (dma_mapping_error(dev, queue->msg_token)) {
free_page((unsigned long)queue->msgs.handle);
queue->msgs.handle = NULL;
return -ENOMEM;
}
queue->cur = 0;
queue->fmt = fmt;
queue->size = PAGE_SIZE / fmt_size;
queue->vhost = vhost;
return 0;
}
/**
* ibmvfc_init_crq - Initializes and registers CRQ with hypervisor
* @vhost: ibmvfc host struct
*
* Allocates a page for messages, maps it for dma, and registers
* the crq with the hypervisor.
*
* Return value:
* zero on success / other on failure
**/
static int ibmvfc_init_crq(struct ibmvfc_host *vhost)
{
int rc, retrc = -ENOMEM;
struct device *dev = vhost->dev;
struct vio_dev *vdev = to_vio_dev(dev);
struct ibmvfc_queue *crq = &vhost->crq;
ENTER;
if (ibmvfc_alloc_queue(vhost, crq, IBMVFC_CRQ_FMT))
return -ENOMEM;
retrc = rc = plpar_hcall_norets(H_REG_CRQ, vdev->unit_address,
crq->msg_token, PAGE_SIZE);
if (rc == H_RESOURCE)
/* maybe kexecing and resource is busy. try a reset */
retrc = rc = ibmvfc_reset_crq(vhost);
if (rc == H_CLOSED)
dev_warn(dev, "Partner adapter not ready\n");
else if (rc) {
dev_warn(dev, "Error %d opening adapter\n", rc);
goto reg_crq_failed;
}
retrc = 0;
tasklet_init(&vhost->tasklet, (void *)ibmvfc_tasklet, (unsigned long)vhost);
if ((rc = request_irq(vdev->irq, ibmvfc_interrupt, 0, IBMVFC_NAME, vhost))) {
dev_err(dev, "Couldn't register irq 0x%x. rc=%d\n", vdev->irq, rc);
goto req_irq_failed;
}
if ((rc = vio_enable_interrupts(vdev))) {
dev_err(dev, "Error %d enabling interrupts\n", rc);
goto req_irq_failed;
}
LEAVE;
return retrc;
req_irq_failed:
tasklet_kill(&vhost->tasklet);
do {
rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
} while (rc == H_BUSY || H_IS_LONG_BUSY(rc));
reg_crq_failed:
ibmvfc_free_queue(vhost, crq);
return retrc;
}
static int ibmvfc_register_scsi_channel(struct ibmvfc_host *vhost,
int index)
{
struct device *dev = vhost->dev;
struct vio_dev *vdev = to_vio_dev(dev);
struct ibmvfc_queue *scrq = &vhost->scsi_scrqs.scrqs[index];
int rc = -ENOMEM;
ENTER;
rc = h_reg_sub_crq(vdev->unit_address, scrq->msg_token, PAGE_SIZE,
&scrq->cookie, &scrq->hw_irq);
/* H_CLOSED indicates successful register, but no CRQ partner */
if (rc && rc != H_CLOSED) {
dev_warn(dev, "Error registering sub-crq: %d\n", rc);
if (rc == H_PARAMETER)
dev_warn_once(dev, "Firmware may not support MQ\n");
goto reg_failed;
}
scrq->irq = irq_create_mapping(NULL, scrq->hw_irq);
if (!scrq->irq) {
rc = -EINVAL;
dev_err(dev, "Error mapping sub-crq[%d] irq\n", index);
goto irq_failed;
}
snprintf(scrq->name, sizeof(scrq->name), "ibmvfc-%x-scsi%d",
vdev->unit_address, index);
rc = request_irq(scrq->irq, ibmvfc_interrupt_scsi, 0, scrq->name, scrq);
if (rc) {
dev_err(dev, "Couldn't register sub-crq[%d] irq\n", index);
irq_dispose_mapping(scrq->irq);
goto irq_failed;
}
scrq->hwq_id = index;
LEAVE;
return 0;
irq_failed:
do {
rc = plpar_hcall_norets(H_FREE_SUB_CRQ, vdev->unit_address, scrq->cookie);
} while (rtas_busy_delay(rc));
reg_failed:
LEAVE;
return rc;
}
static void ibmvfc_deregister_scsi_channel(struct ibmvfc_host *vhost, int index)
{
struct device *dev = vhost->dev;
struct vio_dev *vdev = to_vio_dev(dev);
struct ibmvfc_queue *scrq = &vhost->scsi_scrqs.scrqs[index];
long rc;
ENTER;
free_irq(scrq->irq, scrq);
irq_dispose_mapping(scrq->irq);
scrq->irq = 0;
do {
rc = plpar_hcall_norets(H_FREE_SUB_CRQ, vdev->unit_address,
scrq->cookie);
} while (rc == H_BUSY || H_IS_LONG_BUSY(rc));
if (rc)
dev_err(dev, "Failed to free sub-crq[%d]: rc=%ld\n", index, rc);
/* Clean out the queue */
memset(scrq->msgs.crq, 0, PAGE_SIZE);
scrq->cur = 0;
LEAVE;
}
static void ibmvfc_reg_sub_crqs(struct ibmvfc_host *vhost)
{
int i, j;
ENTER;
if (!vhost->mq_enabled || !vhost->scsi_scrqs.scrqs)
return;
for (i = 0; i < nr_scsi_hw_queues; i++) {
if (ibmvfc_register_scsi_channel(vhost, i)) {
for (j = i; j > 0; j--)
ibmvfc_deregister_scsi_channel(vhost, j - 1);
vhost->do_enquiry = 0;
return;
}
}
LEAVE;
}
static void ibmvfc_dereg_sub_crqs(struct ibmvfc_host *vhost)
{
int i;
ENTER;
if (!vhost->mq_enabled || !vhost->scsi_scrqs.scrqs)
return;
for (i = 0; i < nr_scsi_hw_queues; i++)
ibmvfc_deregister_scsi_channel(vhost, i);
LEAVE;
}
static void ibmvfc_init_sub_crqs(struct ibmvfc_host *vhost)
{
struct ibmvfc_queue *scrq;
int i, j;
ENTER;
if (!vhost->mq_enabled)
return;
vhost->scsi_scrqs.scrqs = kcalloc(nr_scsi_hw_queues,
sizeof(*vhost->scsi_scrqs.scrqs),
GFP_KERNEL);
if (!vhost->scsi_scrqs.scrqs) {
vhost->do_enquiry = 0;
return;
}
for (i = 0; i < nr_scsi_hw_queues; i++) {
scrq = &vhost->scsi_scrqs.scrqs[i];
if (ibmvfc_alloc_queue(vhost, scrq, IBMVFC_SUB_CRQ_FMT)) {
for (j = i; j > 0; j--) {
scrq = &vhost->scsi_scrqs.scrqs[j - 1];
ibmvfc_free_queue(vhost, scrq);
}
kfree(vhost->scsi_scrqs.scrqs);
vhost->scsi_scrqs.scrqs = NULL;
vhost->scsi_scrqs.active_queues = 0;
vhost->do_enquiry = 0;
vhost->mq_enabled = 0;
return;
}
}
ibmvfc_reg_sub_crqs(vhost);
LEAVE;
}
static void ibmvfc_release_sub_crqs(struct ibmvfc_host *vhost)
{
struct ibmvfc_queue *scrq;
int i;
ENTER;
if (!vhost->scsi_scrqs.scrqs)
return;
ibmvfc_dereg_sub_crqs(vhost);
for (i = 0; i < nr_scsi_hw_queues; i++) {
scrq = &vhost->scsi_scrqs.scrqs[i];
ibmvfc_free_queue(vhost, scrq);
}
kfree(vhost->scsi_scrqs.scrqs);
vhost->scsi_scrqs.scrqs = NULL;
vhost->scsi_scrqs.active_queues = 0;
LEAVE;
}
/**
* ibmvfc_free_mem - Free memory for vhost
* @vhost: ibmvfc host struct
*
* Return value:
* none
**/
static void ibmvfc_free_mem(struct ibmvfc_host *vhost)
{
struct ibmvfc_queue *async_q = &vhost->async_crq;
ENTER;
mempool_destroy(vhost->tgt_pool);
kfree(vhost->trace);
dma_free_coherent(vhost->dev, vhost->disc_buf_sz, vhost->disc_buf,
vhost->disc_buf_dma);
dma_free_coherent(vhost->dev, sizeof(*vhost->login_buf),
vhost->login_buf, vhost->login_buf_dma);
dma_free_coherent(vhost->dev, sizeof(*vhost->channel_setup_buf),
vhost->channel_setup_buf, vhost->channel_setup_dma);
dma_pool_destroy(vhost->sg_pool);
ibmvfc_free_queue(vhost, async_q);
LEAVE;
}
/**
* ibmvfc_alloc_mem - Allocate memory for vhost
* @vhost: ibmvfc host struct
*
* Return value:
* 0 on success / non-zero on failure
**/
static int ibmvfc_alloc_mem(struct ibmvfc_host *vhost)
{
struct ibmvfc_queue *async_q = &vhost->async_crq;
struct device *dev = vhost->dev;
ENTER;
if (ibmvfc_alloc_queue(vhost, async_q, IBMVFC_ASYNC_FMT)) {
dev_err(dev, "Couldn't allocate/map async queue.\n");
goto nomem;
}
vhost->sg_pool = dma_pool_create(IBMVFC_NAME, dev,
SG_ALL * sizeof(struct srp_direct_buf),
sizeof(struct srp_direct_buf), 0);
if (!vhost->sg_pool) {
dev_err(dev, "Failed to allocate sg pool\n");
goto unmap_async_crq;
}
vhost->login_buf = dma_alloc_coherent(dev, sizeof(*vhost->login_buf),
&vhost->login_buf_dma, GFP_KERNEL);
if (!vhost->login_buf) {
dev_err(dev, "Couldn't allocate NPIV login buffer\n");
goto free_sg_pool;
}
vhost->disc_buf_sz = sizeof(*vhost->disc_buf) * max_targets;
vhost->disc_buf = dma_alloc_coherent(dev, vhost->disc_buf_sz,
&vhost->disc_buf_dma, GFP_KERNEL);
if (!vhost->disc_buf) {
dev_err(dev, "Couldn't allocate Discover Targets buffer\n");
goto free_login_buffer;
}
vhost->trace = kcalloc(IBMVFC_NUM_TRACE_ENTRIES,
sizeof(struct ibmvfc_trace_entry), GFP_KERNEL);
atomic_set(&vhost->trace_index, -1);
if (!vhost->trace)
goto free_disc_buffer;
vhost->tgt_pool = mempool_create_kmalloc_pool(IBMVFC_TGT_MEMPOOL_SZ,
sizeof(struct ibmvfc_target));
if (!vhost->tgt_pool) {
dev_err(dev, "Couldn't allocate target memory pool\n");
goto free_trace;
}
vhost->channel_setup_buf = dma_alloc_coherent(dev, sizeof(*vhost->channel_setup_buf),
&vhost->channel_setup_dma,
GFP_KERNEL);
if (!vhost->channel_setup_buf) {
dev_err(dev, "Couldn't allocate Channel Setup buffer\n");
goto free_tgt_pool;
}
LEAVE;
return 0;
free_tgt_pool:
mempool_destroy(vhost->tgt_pool);
free_trace:
kfree(vhost->trace);
free_disc_buffer:
dma_free_coherent(dev, vhost->disc_buf_sz, vhost->disc_buf,
vhost->disc_buf_dma);
free_login_buffer:
dma_free_coherent(dev, sizeof(*vhost->login_buf),
vhost->login_buf, vhost->login_buf_dma);
free_sg_pool:
dma_pool_destroy(vhost->sg_pool);
unmap_async_crq:
ibmvfc_free_queue(vhost, async_q);
nomem:
LEAVE;
return -ENOMEM;
}
/**
* ibmvfc_rport_add_thread - Worker thread for rport adds
* @work: work struct
*
**/
static void ibmvfc_rport_add_thread(struct work_struct *work)
{
struct ibmvfc_host *vhost = container_of(work, struct ibmvfc_host,
rport_add_work_q);
struct ibmvfc_target *tgt;
struct fc_rport *rport;
unsigned long flags;
int did_work;
ENTER;
spin_lock_irqsave(vhost->host->host_lock, flags);
do {
did_work = 0;
if (vhost->state != IBMVFC_ACTIVE)
break;
list_for_each_entry(tgt, &vhost->targets, queue) {
if (tgt->add_rport) {
did_work = 1;
tgt->add_rport = 0;
kref_get(&tgt->kref);
rport = tgt->rport;
if (!rport) {
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ibmvfc_tgt_add_rport(tgt);
} else if (get_device(&rport->dev)) {
spin_unlock_irqrestore(vhost->host->host_lock, flags);
tgt_dbg(tgt, "Setting rport roles\n");
fc_remote_port_rolechg(rport, tgt->ids.roles);
put_device(&rport->dev);
} else {
spin_unlock_irqrestore(vhost->host->host_lock, flags);
}
kref_put(&tgt->kref, ibmvfc_release_tgt);
spin_lock_irqsave(vhost->host->host_lock, flags);
break;
}
}
} while(did_work);
if (vhost->state == IBMVFC_ACTIVE)
vhost->scan_complete = 1;
spin_unlock_irqrestore(vhost->host->host_lock, flags);
LEAVE;
}
/**
* ibmvfc_probe - Adapter hot plug add entry point
* @vdev: vio device struct
* @id: vio device id struct
*
* Return value:
* 0 on success / non-zero on failure
**/
static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id)
{
struct ibmvfc_host *vhost;
struct Scsi_Host *shost;
struct device *dev = &vdev->dev;
int rc = -ENOMEM;
unsigned int max_scsi_queues = IBMVFC_MAX_SCSI_QUEUES;
ENTER;
shost = scsi_host_alloc(&driver_template, sizeof(*vhost));
if (!shost) {
dev_err(dev, "Couldn't allocate host data\n");
goto out;
}
shost->transportt = ibmvfc_transport_template;
shost->can_queue = max_requests;
shost->max_lun = max_lun;
shost->max_id = max_targets;
shost->max_sectors = IBMVFC_MAX_SECTORS;
shost->max_cmd_len = IBMVFC_MAX_CDB_LEN;
shost->unique_id = shost->host_no;
shost->nr_hw_queues = mq_enabled ? min(max_scsi_queues, nr_scsi_hw_queues) : 1;
vhost = shost_priv(shost);
INIT_LIST_HEAD(&vhost->targets);
INIT_LIST_HEAD(&vhost->purge);
sprintf(vhost->name, IBMVFC_NAME);
vhost->host = shost;
vhost->dev = dev;
vhost->partition_number = -1;
vhost->log_level = log_level;
vhost->task_set = 1;
vhost->mq_enabled = mq_enabled;
vhost->client_scsi_channels = min(shost->nr_hw_queues, nr_scsi_channels);
vhost->using_channels = 0;
vhost->do_enquiry = 1;
vhost->scan_timeout = 0;
strcpy(vhost->partition_name, "UNKNOWN");
init_waitqueue_head(&vhost->work_wait_q);
init_waitqueue_head(&vhost->init_wait_q);
INIT_WORK(&vhost->rport_add_work_q, ibmvfc_rport_add_thread);
mutex_init(&vhost->passthru_mutex);
if ((rc = ibmvfc_alloc_mem(vhost)))
goto free_scsi_host;
vhost->work_thread = kthread_run(ibmvfc_work, vhost, "%s_%d", IBMVFC_NAME,
shost->host_no);
if (IS_ERR(vhost->work_thread)) {
dev_err(dev, "Couldn't create kernel thread: %ld\n",
PTR_ERR(vhost->work_thread));
rc = PTR_ERR(vhost->work_thread);
goto free_host_mem;
}
if ((rc = ibmvfc_init_crq(vhost))) {
dev_err(dev, "Couldn't initialize crq. rc=%d\n", rc);
goto kill_kthread;
}
if ((rc = scsi_add_host(shost, dev)))
goto release_crq;
fc_host_dev_loss_tmo(shost) = IBMVFC_DEV_LOSS_TMO;
if ((rc = ibmvfc_create_trace_file(&shost->shost_dev.kobj,
&ibmvfc_trace_attr))) {
dev_err(dev, "Failed to create trace file. rc=%d\n", rc);
goto remove_shost;
}
ibmvfc_init_sub_crqs(vhost);
if (shost_to_fc_host(shost)->rqst_q)
blk_queue_max_segments(shost_to_fc_host(shost)->rqst_q, 1);
dev_set_drvdata(dev, vhost);
spin_lock(&ibmvfc_driver_lock);
list_add_tail(&vhost->queue, &ibmvfc_head);
spin_unlock(&ibmvfc_driver_lock);
ibmvfc_send_crq_init(vhost);
scsi_scan_host(shost);
return 0;
remove_shost:
scsi_remove_host(shost);
release_crq:
ibmvfc_release_crq_queue(vhost);
kill_kthread:
kthread_stop(vhost->work_thread);
free_host_mem:
ibmvfc_free_mem(vhost);
free_scsi_host:
scsi_host_put(shost);
out:
LEAVE;
return rc;
}
/**
* ibmvfc_remove - Adapter hot plug remove entry point
* @vdev: vio device struct
*
* Return value:
* 0
**/
static void ibmvfc_remove(struct vio_dev *vdev)
{
struct ibmvfc_host *vhost = dev_get_drvdata(&vdev->dev);
LIST_HEAD(purge);
unsigned long flags;
ENTER;
ibmvfc_remove_trace_file(&vhost->host->shost_dev.kobj, &ibmvfc_trace_attr);
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_link_down(vhost, IBMVFC_HOST_OFFLINE);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ibmvfc_wait_while_resetting(vhost);
kthread_stop(vhost->work_thread);
fc_remove_host(vhost->host);
scsi_remove_host(vhost->host);
spin_lock_irqsave(vhost->host->host_lock, flags);
ibmvfc_purge_requests(vhost, DID_ERROR);
list_splice_init(&vhost->purge, &purge);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
ibmvfc_complete_purge(&purge);
ibmvfc_release_sub_crqs(vhost);
ibmvfc_release_crq_queue(vhost);
ibmvfc_free_mem(vhost);
spin_lock(&ibmvfc_driver_lock);
list_del(&vhost->queue);
spin_unlock(&ibmvfc_driver_lock);
scsi_host_put(vhost->host);
LEAVE;
}
/**
* ibmvfc_resume - Resume from suspend
* @dev: device struct
*
* We may have lost an interrupt across suspend/resume, so kick the
* interrupt handler
*
*/
static int ibmvfc_resume(struct device *dev)
{
unsigned long flags;
struct ibmvfc_host *vhost = dev_get_drvdata(dev);
struct vio_dev *vdev = to_vio_dev(dev);
spin_lock_irqsave(vhost->host->host_lock, flags);
vio_disable_interrupts(vdev);
tasklet_schedule(&vhost->tasklet);
spin_unlock_irqrestore(vhost->host->host_lock, flags);
return 0;
}
/**
* ibmvfc_get_desired_dma - Calculate DMA resources needed by the driver
* @vdev: vio device struct
*
* Return value:
* Number of bytes the driver will need to DMA map at the same time in
* order to perform well.
*/
static unsigned long ibmvfc_get_desired_dma(struct vio_dev *vdev)
{
unsigned long pool_dma = max_requests * sizeof(union ibmvfc_iu);
return pool_dma + ((512 * 1024) * driver_template.cmd_per_lun);
}
static const struct vio_device_id ibmvfc_device_table[] = {
{"fcp", "IBM,vfc-client"},
{ "", "" }
};
MODULE_DEVICE_TABLE(vio, ibmvfc_device_table);
static const struct dev_pm_ops ibmvfc_pm_ops = {
.resume = ibmvfc_resume
};
static struct vio_driver ibmvfc_driver = {
.id_table = ibmvfc_device_table,
.probe = ibmvfc_probe,
.remove = ibmvfc_remove,
.get_desired_dma = ibmvfc_get_desired_dma,
.name = IBMVFC_NAME,
.pm = &ibmvfc_pm_ops,
};
static struct fc_function_template ibmvfc_transport_functions = {
.show_host_fabric_name = 1,
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.show_host_port_type = 1,
.show_host_port_id = 1,
.show_host_maxframe_size = 1,
.get_host_port_state = ibmvfc_get_host_port_state,
.show_host_port_state = 1,
.get_host_speed = ibmvfc_get_host_speed,
.show_host_speed = 1,
.issue_fc_host_lip = ibmvfc_issue_fc_host_lip,
.terminate_rport_io = ibmvfc_terminate_rport_io,
.show_rport_maxframe_size = 1,
.show_rport_supported_classes = 1,
.set_rport_dev_loss_tmo = ibmvfc_set_rport_dev_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.get_starget_node_name = ibmvfc_get_starget_node_name,
.show_starget_node_name = 1,
.get_starget_port_name = ibmvfc_get_starget_port_name,
.show_starget_port_name = 1,
.get_starget_port_id = ibmvfc_get_starget_port_id,
.show_starget_port_id = 1,
.bsg_request = ibmvfc_bsg_request,
.bsg_timeout = ibmvfc_bsg_timeout,
};
/**
* ibmvfc_module_init - Initialize the ibmvfc module
*
* Return value:
* 0 on success / other on failure
**/
static int __init ibmvfc_module_init(void)
{
int rc;
if (!firmware_has_feature(FW_FEATURE_VIO))
return -ENODEV;
printk(KERN_INFO IBMVFC_NAME": IBM Virtual Fibre Channel Driver version: %s %s\n",
IBMVFC_DRIVER_VERSION, IBMVFC_DRIVER_DATE);
ibmvfc_transport_template = fc_attach_transport(&ibmvfc_transport_functions);
if (!ibmvfc_transport_template)
return -ENOMEM;
rc = vio_register_driver(&ibmvfc_driver);
if (rc)
fc_release_transport(ibmvfc_transport_template);
return rc;
}
/**
* ibmvfc_module_exit - Teardown the ibmvfc module
*
* Return value:
* nothing
**/
static void __exit ibmvfc_module_exit(void)
{
vio_unregister_driver(&ibmvfc_driver);
fc_release_transport(ibmvfc_transport_template);
}
module_init(ibmvfc_module_init);
module_exit(ibmvfc_module_exit);
|
linux-master
|
drivers/scsi/ibmvscsi/ibmvfc.c
|
/*
* Adaptec AIC79xx device driver for Linux.
*
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.c#171 $
*
* --------------------------------------------------------------------------
* Copyright (c) 1994-2000 Justin T. Gibbs.
* Copyright (c) 1997-1999 Doug Ledford
* Copyright (c) 2000-2003 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include "aic79xx_osm.h"
#include "aic79xx_inline.h"
#include <scsi/scsicam.h>
static struct scsi_transport_template *ahd_linux_transport_template = NULL;
#include <linux/init.h> /* __setup */
#include <linux/mm.h> /* For fetching system memory size */
#include <linux/blkdev.h> /* For block_size() */
#include <linux/delay.h> /* For ssleep/msleep */
#include <linux/device.h>
#include <linux/slab.h>
/*
* Bucket size for counting good commands in between bad ones.
*/
#define AHD_LINUX_ERR_THRESH 1000
/*
* Set this to the delay in seconds after SCSI bus reset.
* Note, we honor this only for the initial bus reset.
* The scsi error recovery code performs its own bus settle
* delay handling for error recovery actions.
*/
#ifdef CONFIG_AIC79XX_RESET_DELAY_MS
#define AIC79XX_RESET_DELAY CONFIG_AIC79XX_RESET_DELAY_MS
#else
#define AIC79XX_RESET_DELAY 5000
#endif
/*
* To change the default number of tagged transactions allowed per-device,
* add a line to the lilo.conf file like:
* append="aic79xx=verbose,tag_info:{{32,32,32,32},{32,32,32,32}}"
* which will result in the first four devices on the first two
* controllers being set to a tagged queue depth of 32.
*
* The tag_commands is an array of 16 to allow for wide and twin adapters.
* Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15
* for channel 1.
*/
typedef struct {
uint16_t tag_commands[16]; /* Allow for wide/twin adapters. */
} adapter_tag_info_t;
/*
* Modify this as you see fit for your system.
*
* 0 tagged queuing disabled
* 1 <= n <= 253 n == max tags ever dispatched.
*
* The driver will throttle the number of commands dispatched to a
* device if it returns queue full. For devices with a fixed maximum
* queue depth, the driver will eventually determine this depth and
* lock it in (a console message is printed to indicate that a lock
* has occurred). On some devices, queue full is returned for a temporary
* resource shortage. These devices will return queue full at varying
* depths. The driver will throttle back when the queue fulls occur and
* attempt to slowly increase the depth over time as the device recovers
* from the resource shortage.
*
* In this example, the first line will disable tagged queueing for all
* the devices on the first probed aic79xx adapter.
*
* The second line enables tagged queueing with 4 commands/LUN for IDs
* (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the
* driver to attempt to use up to 64 tags for ID 1.
*
* The third line is the same as the first line.
*
* The fourth line disables tagged queueing for devices 0 and 3. It
* enables tagged queueing for the other IDs, with 16 commands/LUN
* for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for
* IDs 2, 5-7, and 9-15.
*/
/*
* NOTE: The below structure is for reference only, the actual structure
* to modify in order to change things is just below this comment block.
adapter_tag_info_t aic79xx_tag_info[] =
{
{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
{{4, 64, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4}},
{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
{{0, 16, 4, 0, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}}
};
*/
#ifdef CONFIG_AIC79XX_CMDS_PER_DEVICE
#define AIC79XX_CMDS_PER_DEVICE CONFIG_AIC79XX_CMDS_PER_DEVICE
#else
#define AIC79XX_CMDS_PER_DEVICE AHD_MAX_QUEUE
#endif
#define AIC79XX_CONFIGED_TAG_COMMANDS { \
AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE, \
AIC79XX_CMDS_PER_DEVICE, AIC79XX_CMDS_PER_DEVICE \
}
/*
* By default, use the number of commands specified by
* the users kernel configuration.
*/
static adapter_tag_info_t aic79xx_tag_info[] =
{
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS},
{AIC79XX_CONFIGED_TAG_COMMANDS}
};
/*
* The I/O cell on the chip is very configurable in respect to its analog
* characteristics. Set the defaults here; they can be overriden with
* the proper insmod parameters.
*/
struct ahd_linux_iocell_opts
{
uint8_t precomp;
uint8_t slewrate;
uint8_t amplitude;
};
#define AIC79XX_DEFAULT_PRECOMP 0xFF
#define AIC79XX_DEFAULT_SLEWRATE 0xFF
#define AIC79XX_DEFAULT_AMPLITUDE 0xFF
#define AIC79XX_DEFAULT_IOOPTS \
{ \
AIC79XX_DEFAULT_PRECOMP, \
AIC79XX_DEFAULT_SLEWRATE, \
AIC79XX_DEFAULT_AMPLITUDE \
}
#define AIC79XX_PRECOMP_INDEX 0
#define AIC79XX_SLEWRATE_INDEX 1
#define AIC79XX_AMPLITUDE_INDEX 2
static struct ahd_linux_iocell_opts aic79xx_iocell_info[] __ro_after_init =
{
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS
};
/*
* There should be a specific return value for this in scsi.h, but
* it seems that most drivers ignore it.
*/
#define DID_UNDERFLOW DID_ERROR
void
ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
{
printk("(scsi%d:%c:%d:%d): ",
ahd->platform_data->host->host_no,
scb != NULL ? SCB_GET_CHANNEL(ahd, scb) : 'X',
scb != NULL ? SCB_GET_TARGET(ahd, scb) : -1,
scb != NULL ? SCB_GET_LUN(scb) : -1);
}
/*
* XXX - these options apply unilaterally to _all_ adapters
* cards in the system. This should be fixed. Exceptions to this
* rule are noted in the comments.
*/
/*
* Skip the scsi bus reset. Non 0 make us skip the reset at startup. This
* has no effect on any later resets that might occur due to things like
* SCSI bus timeouts.
*/
static uint32_t aic79xx_no_reset;
/*
* Should we force EXTENDED translation on a controller.
* 0 == Use whatever is in the SEEPROM or default to off
* 1 == Use whatever is in the SEEPROM or default to on
*/
static uint32_t aic79xx_extended;
/*
* PCI bus parity checking of the Adaptec controllers. This is somewhat
* dubious at best. To my knowledge, this option has never actually
* solved a PCI parity problem, but on certain machines with broken PCI
* chipset configurations, it can generate tons of false error messages.
* It's included in the driver for completeness.
* 0 = Shut off PCI parity check
* non-0 = Enable PCI parity check
*
* NOTE: you can't actually pass -1 on the lilo prompt. So, to set this
* variable to -1 you would actually want to simply pass the variable
* name without a number. That will invert the 0 which will result in
* -1.
*/
static uint32_t aic79xx_pci_parity = ~0;
/*
* There are lots of broken chipsets in the world. Some of them will
* violate the PCI spec when we issue byte sized memory writes to our
* controller. I/O mapped register access, if allowed by the given
* platform, will work in almost all cases.
*/
uint32_t aic79xx_allow_memio = ~0;
/*
* So that we can set how long each device is given as a selection timeout.
* The table of values goes like this:
* 0 - 256ms
* 1 - 128ms
* 2 - 64ms
* 3 - 32ms
* We default to 256ms because some older devices need a longer time
* to respond to initial selection.
*/
static uint32_t aic79xx_seltime;
/*
* Certain devices do not perform any aging on commands. Should the
* device be saturated by commands in one portion of the disk, it is
* possible for transactions on far away sectors to never be serviced.
* To handle these devices, we can periodically send an ordered tag to
* force all outstanding transactions to be serviced prior to a new
* transaction.
*/
static uint32_t aic79xx_periodic_otag;
/* Some storage boxes are using an LSI chip which has a bug making it
* impossible to use aic79xx Rev B chip in 320 speeds. The following
* storage boxes have been reported to be buggy:
* EonStor 3U 16-Bay: U16U-G3A3
* EonStor 2U 12-Bay: U12U-G3A3
* SentinelRAID: 2500F R5 / R6
* SentinelRAID: 2500F R1
* SentinelRAID: 2500F/1500F
* SentinelRAID: 150F
*
* To get around this LSI bug, you can set your board to 160 mode
* or you can enable the SLOWCRC bit.
*/
uint32_t aic79xx_slowcrc;
/*
* Module information and settable options.
*/
static char *aic79xx = NULL;
MODULE_AUTHOR("Maintainer: Hannes Reinecke <[email protected]>");
MODULE_DESCRIPTION("Adaptec AIC790X U320 SCSI Host Bus Adapter driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(AIC79XX_DRIVER_VERSION);
module_param(aic79xx, charp, 0444);
MODULE_PARM_DESC(aic79xx,
"period-delimited options string:\n"
" verbose Enable verbose/diagnostic logging\n"
" allow_memio Allow device registers to be memory mapped\n"
" debug Bitmask of debug values to enable\n"
" no_reset Suppress initial bus resets\n"
" extended Enable extended geometry on all controllers\n"
" periodic_otag Send an ordered tagged transaction\n"
" periodically to prevent tag starvation.\n"
" This may be required by some older disk\n"
" or drives/RAID arrays.\n"
" tag_info:<tag_str> Set per-target tag depth\n"
" global_tag_depth:<int> Global tag depth for all targets on all buses\n"
" slewrate:<slewrate_list>Set the signal slew rate (0-15).\n"
" precomp:<pcomp_list> Set the signal precompensation (0-7).\n"
" amplitude:<int> Set the signal amplitude (0-7).\n"
" seltime:<int> Selection Timeout:\n"
" (0/256ms,1/128ms,2/64ms,3/32ms)\n"
" slowcrc Turn on the SLOWCRC bit (Rev B only)\n"
"\n"
" Sample modprobe configuration file:\n"
" # Enable verbose logging\n"
" # Set tag depth on Controller 2/Target 2 to 10 tags\n"
" # Shorten the selection timeout to 128ms\n"
"\n"
" options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n"
);
static void ahd_linux_handle_scsi_status(struct ahd_softc *,
struct scsi_device *,
struct scb *);
static void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd,
struct scsi_cmnd *cmd);
static int ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd);
static void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd);
static u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo);
static void ahd_linux_device_queue_depth(struct scsi_device *);
static int ahd_linux_run_command(struct ahd_softc*,
struct ahd_linux_device *,
struct scsi_cmnd *);
static void ahd_linux_setup_tag_info_global(char *p);
static int aic79xx_setup(char *c);
static void ahd_freeze_simq(struct ahd_softc *ahd);
static void ahd_release_simq(struct ahd_softc *ahd);
static int ahd_linux_unit;
/************************** OS Utility Wrappers *******************************/
void ahd_delay(long);
void
ahd_delay(long usec)
{
/*
* udelay on Linux can have problems for
* multi-millisecond waits. Wait at most
* 1024us per call.
*/
while (usec > 0) {
udelay(usec % 1024);
usec -= 1024;
}
}
/***************************** Low Level I/O **********************************/
uint8_t ahd_inb(struct ahd_softc * ahd, long port);
void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
void ahd_outw_atomic(struct ahd_softc * ahd,
long port, uint16_t val);
void ahd_outsb(struct ahd_softc * ahd, long port,
uint8_t *, int count);
void ahd_insb(struct ahd_softc * ahd, long port,
uint8_t *, int count);
uint8_t
ahd_inb(struct ahd_softc * ahd, long port)
{
uint8_t x;
if (ahd->tags[0] == BUS_SPACE_MEMIO) {
x = readb(ahd->bshs[0].maddr + port);
} else {
x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
}
mb();
return (x);
}
#if 0 /* unused */
static uint16_t
ahd_inw_atomic(struct ahd_softc * ahd, long port)
{
uint8_t x;
if (ahd->tags[0] == BUS_SPACE_MEMIO) {
x = readw(ahd->bshs[0].maddr + port);
} else {
x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
}
mb();
return (x);
}
#endif
void
ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
{
if (ahd->tags[0] == BUS_SPACE_MEMIO) {
writeb(val, ahd->bshs[0].maddr + port);
} else {
outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
}
mb();
}
void
ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
{
if (ahd->tags[0] == BUS_SPACE_MEMIO) {
writew(val, ahd->bshs[0].maddr + port);
} else {
outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
}
mb();
}
void
ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
{
int i;
/*
* There is probably a more efficient way to do this on Linux
* but we don't use this for anything speed critical and this
* should work.
*/
for (i = 0; i < count; i++)
ahd_outb(ahd, port, *array++);
}
void
ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
{
int i;
/*
* There is probably a more efficient way to do this on Linux
* but we don't use this for anything speed critical and this
* should work.
*/
for (i = 0; i < count; i++)
*array++ = ahd_inb(ahd, port);
}
/******************************* PCI Routines *********************************/
uint32_t
ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
{
switch (width) {
case 1:
{
uint8_t retval;
pci_read_config_byte(pci, reg, &retval);
return (retval);
}
case 2:
{
uint16_t retval;
pci_read_config_word(pci, reg, &retval);
return (retval);
}
case 4:
{
uint32_t retval;
pci_read_config_dword(pci, reg, &retval);
return (retval);
}
default:
panic("ahd_pci_read_config: Read size too big");
/* NOTREACHED */
return (0);
}
}
void
ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
{
switch (width) {
case 1:
pci_write_config_byte(pci, reg, value);
break;
case 2:
pci_write_config_word(pci, reg, value);
break;
case 4:
pci_write_config_dword(pci, reg, value);
break;
default:
panic("ahd_pci_write_config: Write size too big");
/* NOTREACHED */
}
}
/****************************** Inlines ***************************************/
static void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
static void
ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
{
struct scsi_cmnd *cmd;
cmd = scb->io_ctx;
ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE);
scsi_dma_unmap(cmd);
}
/******************************** Macros **************************************/
#define BUILD_SCSIID(ahd, cmd) \
(((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id)
/*
* Return a string describing the driver.
*/
static const char *
ahd_linux_info(struct Scsi_Host *host)
{
static char buffer[512];
char ahd_info[256];
char *bp;
struct ahd_softc *ahd;
bp = &buffer[0];
ahd = *(struct ahd_softc **)host->hostdata;
memset(bp, 0, sizeof(buffer));
strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev " AIC79XX_DRIVER_VERSION "\n"
" <");
strcat(bp, ahd->description);
strcat(bp, ">\n"
" ");
ahd_controller_info(ahd, ahd_info);
strcat(bp, ahd_info);
return (bp);
}
/*
* Queue an SCB to the controller.
*/
static int ahd_linux_queue_lck(struct scsi_cmnd *cmd)
{
struct ahd_softc *ahd;
struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device);
int rtn = SCSI_MLQUEUE_HOST_BUSY;
ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
cmd->result = CAM_REQ_INPROG << 16;
rtn = ahd_linux_run_command(ahd, dev, cmd);
return rtn;
}
static DEF_SCSI_QCMD(ahd_linux_queue)
static struct scsi_target **
ahd_linux_target_in_softc(struct scsi_target *starget)
{
struct ahd_softc *ahd =
*((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata);
unsigned int target_offset;
target_offset = starget->id;
if (starget->channel != 0)
target_offset += 8;
return &ahd->platform_data->starget[target_offset];
}
static int
ahd_linux_target_alloc(struct scsi_target *starget)
{
struct ahd_softc *ahd =
*((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata);
struct seeprom_config *sc = ahd->seep_config;
unsigned long flags;
struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget);
struct ahd_devinfo devinfo;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
char channel = starget->channel + 'A';
ahd_lock(ahd, &flags);
BUG_ON(*ahd_targp != NULL);
*ahd_targp = starget;
if (sc) {
int flags = sc->device_flags[starget->id];
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
starget->id, &tstate);
if ((flags & CFPACKETIZED) == 0) {
/* don't negotiate packetized (IU) transfers */
spi_max_iu(starget) = 0;
} else {
if ((ahd->features & AHD_RTI) == 0)
spi_rti(starget) = 0;
}
if ((flags & CFQAS) == 0)
spi_max_qas(starget) = 0;
/* Transinfo values have been set to BIOS settings */
spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0;
spi_min_period(starget) = tinfo->user.period;
spi_max_offset(starget) = tinfo->user.offset;
}
tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id,
starget->id, &tstate);
ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id,
CAM_LUN_WILDCARD, channel,
ROLE_INITIATOR);
ahd_set_syncrate(ahd, &devinfo, 0, 0, 0,
AHD_TRANS_GOAL, /*paused*/FALSE);
ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_GOAL, /*paused*/FALSE);
ahd_unlock(ahd, &flags);
return 0;
}
static void
ahd_linux_target_destroy(struct scsi_target *starget)
{
struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget);
*ahd_targp = NULL;
}
static int
ahd_linux_slave_alloc(struct scsi_device *sdev)
{
struct ahd_softc *ahd =
*((struct ahd_softc **)sdev->host->hostdata);
struct ahd_linux_device *dev;
if (bootverbose)
printk("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id);
dev = scsi_transport_device_data(sdev);
memset(dev, 0, sizeof(*dev));
/*
* We start out life using untagged
* transactions of which we allow one.
*/
dev->openings = 1;
/*
* Set maxtags to 0. This will be changed if we
* later determine that we are dealing with
* a tagged queuing capable device.
*/
dev->maxtags = 0;
return (0);
}
static int
ahd_linux_slave_configure(struct scsi_device *sdev)
{
if (bootverbose)
sdev_printk(KERN_INFO, sdev, "Slave Configure\n");
ahd_linux_device_queue_depth(sdev);
/* Initial Domain Validation */
if (!spi_initial_dv(sdev->sdev_target))
spi_dv_device(sdev);
return 0;
}
#if defined(__i386__)
/*
* Return the disk geometry for the given SCSI device.
*/
static int
ahd_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int geom[])
{
int heads;
int sectors;
int cylinders;
int extended;
struct ahd_softc *ahd;
ahd = *((struct ahd_softc **)sdev->host->hostdata);
if (scsi_partsize(bdev, capacity, geom))
return 0;
heads = 64;
sectors = 32;
cylinders = aic_sector_div(capacity, heads, sectors);
if (aic79xx_extended != 0)
extended = 1;
else
extended = (ahd->flags & AHD_EXTENDED_TRANS_A) != 0;
if (extended && cylinders >= 1024) {
heads = 255;
sectors = 63;
cylinders = aic_sector_div(capacity, heads, sectors);
}
geom[0] = heads;
geom[1] = sectors;
geom[2] = cylinders;
return (0);
}
#endif
/*
* Abort the current SCSI command(s).
*/
static int
ahd_linux_abort(struct scsi_cmnd *cmd)
{
return ahd_linux_queue_abort_cmd(cmd);
}
/*
* Attempt to send a target reset message to the device that timed out.
*/
static int
ahd_linux_dev_reset(struct scsi_cmnd *cmd)
{
struct ahd_softc *ahd;
struct ahd_linux_device *dev;
struct scb *reset_scb;
u_int cdb_byte;
int retval = SUCCESS;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
unsigned long flags;
DECLARE_COMPLETION_ONSTACK(done);
reset_scb = NULL;
ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
scmd_printk(KERN_INFO, cmd,
"Attempting to queue a TARGET RESET message:");
printk("CDB:");
for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
printk(" 0x%x", cmd->cmnd[cdb_byte]);
printk("\n");
/*
* Determine if we currently own this command.
*/
dev = scsi_transport_device_data(cmd->device);
if (dev == NULL) {
/*
* No target device for this command exists,
* so we must not still own the command.
*/
scmd_printk(KERN_INFO, cmd, "Is not an active device\n");
return SUCCESS;
}
/*
* Generate us a new SCB
*/
reset_scb = ahd_get_scb(ahd, AHD_NEVER_COL_IDX);
if (!reset_scb) {
scmd_printk(KERN_INFO, cmd, "No SCB available\n");
return FAILED;
}
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
cmd->device->id, &tstate);
reset_scb->io_ctx = cmd;
reset_scb->platform_data->dev = dev;
reset_scb->sg_count = 0;
ahd_set_residual(reset_scb, 0);
ahd_set_sense_residual(reset_scb, 0);
reset_scb->platform_data->xfer_len = 0;
reset_scb->hscb->control = 0;
reset_scb->hscb->scsiid = BUILD_SCSIID(ahd,cmd);
reset_scb->hscb->lun = cmd->device->lun;
reset_scb->hscb->cdb_len = 0;
reset_scb->hscb->task_management = SIU_TASKMGMT_LUN_RESET;
reset_scb->flags |= SCB_DEVICE_RESET|SCB_RECOVERY_SCB|SCB_ACTIVE;
if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
reset_scb->flags |= SCB_PACKETIZED;
} else {
reset_scb->hscb->control |= MK_MESSAGE;
}
dev->openings--;
dev->active++;
dev->commands_issued++;
ahd_lock(ahd, &flags);
LIST_INSERT_HEAD(&ahd->pending_scbs, reset_scb, pending_links);
ahd_queue_scb(ahd, reset_scb);
ahd->platform_data->eh_done = &done;
ahd_unlock(ahd, &flags);
printk("%s: Device reset code sleeping\n", ahd_name(ahd));
if (!wait_for_completion_timeout(&done, 5 * HZ)) {
ahd_lock(ahd, &flags);
ahd->platform_data->eh_done = NULL;
ahd_unlock(ahd, &flags);
printk("%s: Device reset timer expired (active %d)\n",
ahd_name(ahd), dev->active);
retval = FAILED;
}
printk("%s: Device reset returning 0x%x\n", ahd_name(ahd), retval);
return (retval);
}
/*
* Reset the SCSI bus.
*/
static int
ahd_linux_bus_reset(struct scsi_cmnd *cmd)
{
struct ahd_softc *ahd;
int found;
unsigned long flags;
ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0)
printk("%s: Bus reset called for cmd %p\n",
ahd_name(ahd), cmd);
#endif
ahd_lock(ahd, &flags);
found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A',
/*initiate reset*/TRUE);
ahd_unlock(ahd, &flags);
if (bootverbose)
printk("%s: SCSI bus reset delivered. "
"%d SCBs aborted.\n", ahd_name(ahd), found);
return (SUCCESS);
}
struct scsi_host_template aic79xx_driver_template = {
.module = THIS_MODULE,
.name = "aic79xx",
.proc_name = "aic79xx",
.show_info = ahd_linux_show_info,
.write_info = ahd_proc_write_seeprom,
.info = ahd_linux_info,
.queuecommand = ahd_linux_queue,
.eh_abort_handler = ahd_linux_abort,
.eh_device_reset_handler = ahd_linux_dev_reset,
.eh_bus_reset_handler = ahd_linux_bus_reset,
#if defined(__i386__)
.bios_param = ahd_linux_biosparam,
#endif
.can_queue = AHD_MAX_QUEUE,
.this_id = -1,
.max_sectors = 8192,
.cmd_per_lun = 2,
.slave_alloc = ahd_linux_slave_alloc,
.slave_configure = ahd_linux_slave_configure,
.target_alloc = ahd_linux_target_alloc,
.target_destroy = ahd_linux_target_destroy,
};
/******************************** Bus DMA *************************************/
int
ahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent,
bus_size_t alignment, bus_size_t boundary,
dma_addr_t lowaddr, dma_addr_t highaddr,
bus_dma_filter_t *filter, void *filterarg,
bus_size_t maxsize, int nsegments,
bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag)
{
bus_dma_tag_t dmat;
dmat = kmalloc(sizeof(*dmat), GFP_ATOMIC);
if (dmat == NULL)
return (ENOMEM);
/*
* Linux is very simplistic about DMA memory. For now don't
* maintain all specification information. Once Linux supplies
* better facilities for doing these operations, or the
* needs of this particular driver change, we might need to do
* more here.
*/
dmat->alignment = alignment;
dmat->boundary = boundary;
dmat->maxsize = maxsize;
*ret_tag = dmat;
return (0);
}
void
ahd_dma_tag_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat)
{
kfree(dmat);
}
int
ahd_dmamem_alloc(struct ahd_softc *ahd, bus_dma_tag_t dmat, void** vaddr,
int flags, bus_dmamap_t *mapp)
{
*vaddr = dma_alloc_coherent(&ahd->dev_softc->dev, dmat->maxsize, mapp,
GFP_ATOMIC);
if (*vaddr == NULL)
return (ENOMEM);
return(0);
}
void
ahd_dmamem_free(struct ahd_softc *ahd, bus_dma_tag_t dmat,
void* vaddr, bus_dmamap_t map)
{
dma_free_coherent(&ahd->dev_softc->dev, dmat->maxsize, vaddr, map);
}
int
ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map,
void *buf, bus_size_t buflen, bus_dmamap_callback_t *cb,
void *cb_arg, int flags)
{
/*
* Assume for now that this will only be used during
* initialization and not for per-transaction buffer mapping.
*/
bus_dma_segment_t stack_sg;
stack_sg.ds_addr = map;
stack_sg.ds_len = dmat->maxsize;
cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0);
return (0);
}
void
ahd_dmamap_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map)
{
}
int
ahd_dmamap_unload(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map)
{
/* Nothing to do */
return (0);
}
/********************* Platform Dependent Functions ***************************/
static void
ahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value)
{
if ((instance >= 0)
&& (instance < ARRAY_SIZE(aic79xx_iocell_info))) {
uint8_t *iocell_info;
iocell_info = (uint8_t*)&aic79xx_iocell_info[instance];
iocell_info[index] = value & 0xFFFF;
if (bootverbose)
printk("iocell[%d:%ld] = %d\n", instance, index, value);
}
}
static void
ahd_linux_setup_tag_info_global(char *p)
{
int tags, i, j;
tags = simple_strtoul(p + 1, NULL, 0) & 0xff;
printk("Setting Global Tags= %d\n", tags);
for (i = 0; i < ARRAY_SIZE(aic79xx_tag_info); i++) {
for (j = 0; j < AHD_NUM_TARGETS; j++) {
aic79xx_tag_info[i].tag_commands[j] = tags;
}
}
}
static void
ahd_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value)
{
if ((instance >= 0) && (targ >= 0)
&& (instance < ARRAY_SIZE(aic79xx_tag_info))
&& (targ < AHD_NUM_TARGETS)) {
aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF;
if (bootverbose)
printk("tag_info[%d:%d] = %d\n", instance, targ, value);
}
}
static char *
ahd_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth,
void (*callback)(u_long, int, int, int32_t),
u_long callback_arg)
{
char *tok_end;
char *tok_end2;
int i;
int instance;
int targ;
int done;
char tok_list[] = {'.', ',', '{', '}', '\0'};
/* All options use a ':' name/arg separator */
if (*opt_arg != ':')
return (opt_arg);
opt_arg++;
instance = -1;
targ = -1;
done = FALSE;
/*
* Restore separator that may be in
* the middle of our option argument.
*/
tok_end = strchr(opt_arg, '\0');
if (tok_end < end)
*tok_end = ',';
while (!done) {
switch (*opt_arg) {
case '{':
if (instance == -1) {
instance = 0;
} else {
if (depth > 1) {
if (targ == -1)
targ = 0;
} else {
printk("Malformed Option %s\n",
opt_name);
done = TRUE;
}
}
opt_arg++;
break;
case '}':
if (targ != -1)
targ = -1;
else if (instance != -1)
instance = -1;
opt_arg++;
break;
case ',':
case '.':
if (instance == -1)
done = TRUE;
else if (targ >= 0)
targ++;
else if (instance >= 0)
instance++;
opt_arg++;
break;
case '\0':
done = TRUE;
break;
default:
tok_end = end;
for (i = 0; tok_list[i]; i++) {
tok_end2 = strchr(opt_arg, tok_list[i]);
if ((tok_end2) && (tok_end2 < tok_end))
tok_end = tok_end2;
}
callback(callback_arg, instance, targ,
simple_strtol(opt_arg, NULL, 0));
opt_arg = tok_end;
break;
}
}
return (opt_arg);
}
/*
* Handle Linux boot parameters. This routine allows for assigning a value
* to a parameter with a ':' between the parameter and the value.
* ie. aic79xx=stpwlev:1,extended
*/
static int
aic79xx_setup(char *s)
{
int i, n;
char *p;
char *end;
static const struct {
const char *name;
uint32_t *flag;
} options[] = {
{ "extended", &aic79xx_extended },
{ "no_reset", &aic79xx_no_reset },
{ "verbose", &aic79xx_verbose },
{ "allow_memio", &aic79xx_allow_memio},
#ifdef AHD_DEBUG
{ "debug", &ahd_debug },
#endif
{ "periodic_otag", &aic79xx_periodic_otag },
{ "pci_parity", &aic79xx_pci_parity },
{ "seltime", &aic79xx_seltime },
{ "tag_info", NULL },
{ "global_tag_depth", NULL},
{ "slewrate", NULL },
{ "precomp", NULL },
{ "amplitude", NULL },
{ "slowcrc", &aic79xx_slowcrc },
};
end = strchr(s, '\0');
/*
* XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE
* will never be 0 in this case.
*/
n = 0;
while ((p = strsep(&s, ",.")) != NULL) {
if (*p == '\0')
continue;
for (i = 0; i < ARRAY_SIZE(options); i++) {
n = strlen(options[i].name);
if (strncmp(options[i].name, p, n) == 0)
break;
}
if (i == ARRAY_SIZE(options))
continue;
if (strncmp(p, "global_tag_depth", n) == 0) {
ahd_linux_setup_tag_info_global(p + n);
} else if (strncmp(p, "tag_info", n) == 0) {
s = ahd_parse_brace_option("tag_info", p + n, end,
2, ahd_linux_setup_tag_info, 0);
} else if (strncmp(p, "slewrate", n) == 0) {
s = ahd_parse_brace_option("slewrate",
p + n, end, 1, ahd_linux_setup_iocell_info,
AIC79XX_SLEWRATE_INDEX);
} else if (strncmp(p, "precomp", n) == 0) {
s = ahd_parse_brace_option("precomp",
p + n, end, 1, ahd_linux_setup_iocell_info,
AIC79XX_PRECOMP_INDEX);
} else if (strncmp(p, "amplitude", n) == 0) {
s = ahd_parse_brace_option("amplitude",
p + n, end, 1, ahd_linux_setup_iocell_info,
AIC79XX_AMPLITUDE_INDEX);
} else if (p[n] == ':') {
*(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0);
} else if (!strncmp(p, "verbose", n)) {
*(options[i].flag) = 1;
} else {
*(options[i].flag) ^= 0xFFFFFFFF;
}
}
return 1;
}
__setup("aic79xx=", aic79xx_setup);
uint32_t aic79xx_verbose;
int
ahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *template)
{
char buf[80];
struct Scsi_Host *host;
char *new_name;
u_long s;
int retval;
template->name = ahd->description;
host = scsi_host_alloc(template, sizeof(struct ahd_softc *));
if (host == NULL)
return (ENOMEM);
*((struct ahd_softc **)host->hostdata) = ahd;
ahd->platform_data->host = host;
host->can_queue = AHD_MAX_QUEUE;
host->cmd_per_lun = 2;
host->sg_tablesize = AHD_NSEG;
host->this_id = ahd->our_id;
host->irq = ahd->platform_data->irq;
host->max_id = (ahd->features & AHD_WIDE) ? 16 : 8;
host->max_lun = AHD_NUM_LUNS;
host->max_channel = 0;
host->sg_tablesize = AHD_NSEG;
ahd_lock(ahd, &s);
ahd_set_unit(ahd, ahd_linux_unit++);
ahd_unlock(ahd, &s);
sprintf(buf, "scsi%d", host->host_no);
new_name = kmalloc(strlen(buf) + 1, GFP_ATOMIC);
if (new_name != NULL) {
strcpy(new_name, buf);
ahd_set_name(ahd, new_name);
}
host->unique_id = ahd->unit;
ahd_linux_initialize_scsi_bus(ahd);
ahd_intr_enable(ahd, TRUE);
host->transportt = ahd_linux_transport_template;
retval = scsi_add_host(host, &ahd->dev_softc->dev);
if (retval) {
printk(KERN_WARNING "aic79xx: scsi_add_host failed\n");
scsi_host_put(host);
return retval;
}
scsi_scan_host(host);
return 0;
}
/*
* Place the SCSI bus into a known state by either resetting it,
* or forcing transfer negotiations on the next command to any
* target.
*/
static void
ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd)
{
u_int target_id;
u_int numtarg;
unsigned long s;
target_id = 0;
numtarg = 0;
if (aic79xx_no_reset != 0)
ahd->flags &= ~AHD_RESET_BUS_A;
if ((ahd->flags & AHD_RESET_BUS_A) != 0)
ahd_reset_channel(ahd, 'A', /*initiate_reset*/TRUE);
else
numtarg = (ahd->features & AHD_WIDE) ? 16 : 8;
ahd_lock(ahd, &s);
/*
* Force negotiation to async for all targets that
* will not see an initial bus reset.
*/
for (; target_id < numtarg; target_id++) {
struct ahd_devinfo devinfo;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
target_id, &tstate);
ahd_compile_devinfo(&devinfo, ahd->our_id, target_id,
CAM_LUN_WILDCARD, 'A', ROLE_INITIATOR);
ahd_update_neg_request(ahd, &devinfo, tstate,
tinfo, AHD_NEG_ALWAYS);
}
ahd_unlock(ahd, &s);
/* Give the bus some time to recover */
if ((ahd->flags & AHD_RESET_BUS_A) != 0) {
ahd_freeze_simq(ahd);
msleep(AIC79XX_RESET_DELAY);
ahd_release_simq(ahd);
}
}
int
ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
{
ahd->platform_data =
kzalloc(sizeof(struct ahd_platform_data), GFP_ATOMIC);
if (ahd->platform_data == NULL)
return (ENOMEM);
ahd->platform_data->irq = AHD_LINUX_NOIRQ;
ahd_lockinit(ahd);
ahd->seltime = (aic79xx_seltime & 0x3) << 4;
return (0);
}
void
ahd_platform_free(struct ahd_softc *ahd)
{
struct scsi_target *starget;
int i;
if (ahd->platform_data != NULL) {
/* destroy all of the device and target objects */
for (i = 0; i < AHD_NUM_TARGETS; i++) {
starget = ahd->platform_data->starget[i];
if (starget != NULL) {
ahd->platform_data->starget[i] = NULL;
}
}
if (ahd->platform_data->irq != AHD_LINUX_NOIRQ)
free_irq(ahd->platform_data->irq, ahd);
if (ahd->tags[0] == BUS_SPACE_PIO
&& ahd->bshs[0].ioport != 0)
release_region(ahd->bshs[0].ioport, 256);
if (ahd->tags[1] == BUS_SPACE_PIO
&& ahd->bshs[1].ioport != 0)
release_region(ahd->bshs[1].ioport, 256);
if (ahd->tags[0] == BUS_SPACE_MEMIO
&& ahd->bshs[0].maddr != NULL) {
iounmap(ahd->bshs[0].maddr);
release_mem_region(ahd->platform_data->mem_busaddr,
0x1000);
}
if (ahd->platform_data->host)
scsi_host_put(ahd->platform_data->host);
kfree(ahd->platform_data);
}
}
void
ahd_platform_init(struct ahd_softc *ahd)
{
/*
* Lookup and commit any modified IO Cell options.
*/
if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
const struct ahd_linux_iocell_opts *iocell_opts;
iocell_opts = &aic79xx_iocell_info[ahd->unit];
if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP)
AHD_SET_PRECOMP(ahd, iocell_opts->precomp);
if (iocell_opts->slewrate != AIC79XX_DEFAULT_SLEWRATE)
AHD_SET_SLEWRATE(ahd, iocell_opts->slewrate);
if (iocell_opts->amplitude != AIC79XX_DEFAULT_AMPLITUDE)
AHD_SET_AMPLITUDE(ahd, iocell_opts->amplitude);
}
}
void
ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb)
{
ahd_platform_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb),
SCB_GET_CHANNEL(ahd, scb),
SCB_GET_LUN(scb), SCB_LIST_NULL,
ROLE_UNKNOWN, CAM_REQUEUE_REQ);
}
void
ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev,
struct ahd_devinfo *devinfo, ahd_queue_alg alg)
{
struct ahd_linux_device *dev;
int was_queuing;
int now_queuing;
if (sdev == NULL)
return;
dev = scsi_transport_device_data(sdev);
if (dev == NULL)
return;
was_queuing = dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED);
switch (alg) {
default:
case AHD_QUEUE_NONE:
now_queuing = 0;
break;
case AHD_QUEUE_BASIC:
now_queuing = AHD_DEV_Q_BASIC;
break;
case AHD_QUEUE_TAGGED:
now_queuing = AHD_DEV_Q_TAGGED;
break;
}
if ((dev->flags & AHD_DEV_FREEZE_TIL_EMPTY) == 0
&& (was_queuing != now_queuing)
&& (dev->active != 0)) {
dev->flags |= AHD_DEV_FREEZE_TIL_EMPTY;
dev->qfrozen++;
}
dev->flags &= ~(AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED|AHD_DEV_PERIODIC_OTAG);
if (now_queuing) {
u_int usertags;
usertags = ahd_linux_user_tagdepth(ahd, devinfo);
if (!was_queuing) {
/*
* Start out aggressively and allow our
* dynamic queue depth algorithm to take
* care of the rest.
*/
dev->maxtags = usertags;
dev->openings = dev->maxtags - dev->active;
}
if (dev->maxtags == 0) {
/*
* Queueing is disabled by the user.
*/
dev->openings = 1;
} else if (alg == AHD_QUEUE_TAGGED) {
dev->flags |= AHD_DEV_Q_TAGGED;
if (aic79xx_periodic_otag != 0)
dev->flags |= AHD_DEV_PERIODIC_OTAG;
} else
dev->flags |= AHD_DEV_Q_BASIC;
} else {
/* We can only have one opening. */
dev->maxtags = 0;
dev->openings = 1 - dev->active;
}
switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) {
case AHD_DEV_Q_BASIC:
case AHD_DEV_Q_TAGGED:
scsi_change_queue_depth(sdev,
dev->openings + dev->active);
break;
default:
/*
* We allow the OS to queue 2 untagged transactions to
* us at any time even though we can only execute them
* serially on the controller/device. This should
* remove some latency.
*/
scsi_change_queue_depth(sdev, 1);
break;
}
}
int
ahd_platform_abort_scbs(struct ahd_softc *ahd, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status)
{
return 0;
}
static u_int
ahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
{
static int warned_user;
u_int tags;
tags = 0;
if ((ahd->user_discenable & devinfo->target_mask) != 0) {
if (ahd->unit >= ARRAY_SIZE(aic79xx_tag_info)) {
if (warned_user == 0) {
printk(KERN_WARNING
"aic79xx: WARNING: Insufficient tag_info instances\n"
"aic79xx: for installed controllers. Using defaults\n"
"aic79xx: Please update the aic79xx_tag_info array in\n"
"aic79xx: the aic79xx_osm.c source file.\n");
warned_user++;
}
tags = AHD_MAX_QUEUE;
} else {
adapter_tag_info_t *tag_info;
tag_info = &aic79xx_tag_info[ahd->unit];
tags = tag_info->tag_commands[devinfo->target_offset];
if (tags > AHD_MAX_QUEUE)
tags = AHD_MAX_QUEUE;
}
}
return (tags);
}
/*
* Determines the queue depth for a given device.
*/
static void
ahd_linux_device_queue_depth(struct scsi_device *sdev)
{
struct ahd_devinfo devinfo;
u_int tags;
struct ahd_softc *ahd = *((struct ahd_softc **)sdev->host->hostdata);
ahd_compile_devinfo(&devinfo,
ahd->our_id,
sdev->sdev_target->id, sdev->lun,
sdev->sdev_target->channel == 0 ? 'A' : 'B',
ROLE_INITIATOR);
tags = ahd_linux_user_tagdepth(ahd, &devinfo);
if (tags != 0 && sdev->tagged_supported != 0) {
ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_TAGGED);
ahd_send_async(ahd, devinfo.channel, devinfo.target,
devinfo.lun, AC_TRANSFER_NEG);
ahd_print_devinfo(ahd, &devinfo);
printk("Tagged Queuing enabled. Depth %d\n", tags);
} else {
ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_NONE);
ahd_send_async(ahd, devinfo.channel, devinfo.target,
devinfo.lun, AC_TRANSFER_NEG);
}
}
static int
ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev,
struct scsi_cmnd *cmd)
{
struct scb *scb;
struct hardware_scb *hscb;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
u_int col_idx;
uint16_t mask;
unsigned long flags;
int nseg;
nseg = scsi_dma_map(cmd);
if (nseg < 0)
return SCSI_MLQUEUE_HOST_BUSY;
ahd_lock(ahd, &flags);
/*
* Get an scb to use.
*/
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
cmd->device->id, &tstate);
if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) == 0
|| (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
col_idx = AHD_NEVER_COL_IDX;
} else {
col_idx = AHD_BUILD_COL_IDX(cmd->device->id,
cmd->device->lun);
}
if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
ahd->flags |= AHD_RESOURCE_SHORTAGE;
ahd_unlock(ahd, &flags);
scsi_dma_unmap(cmd);
return SCSI_MLQUEUE_HOST_BUSY;
}
scb->io_ctx = cmd;
scb->platform_data->dev = dev;
hscb = scb->hscb;
cmd->host_scribble = (char *)scb;
/*
* Fill out basics of the HSCB.
*/
hscb->control = 0;
hscb->scsiid = BUILD_SCSIID(ahd, cmd);
hscb->lun = cmd->device->lun;
scb->hscb->task_management = 0;
mask = SCB_GET_TARGET_MASK(ahd, scb);
if ((ahd->user_discenable & mask) != 0)
hscb->control |= DISCENB;
if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0)
scb->flags |= SCB_PACKETIZED;
if ((tstate->auto_negotiate & mask) != 0) {
scb->flags |= SCB_AUTO_NEGOTIATE;
scb->hscb->control |= MK_MESSAGE;
}
if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) {
if (dev->commands_since_idle_or_otag == AHD_OTAG_THRESH
&& (dev->flags & AHD_DEV_Q_TAGGED) != 0) {
hscb->control |= ORDERED_QUEUE_TAG;
dev->commands_since_idle_or_otag = 0;
} else {
hscb->control |= SIMPLE_QUEUE_TAG;
}
}
hscb->cdb_len = cmd->cmd_len;
memcpy(hscb->shared_data.idata.cdb, cmd->cmnd, hscb->cdb_len);
scb->platform_data->xfer_len = 0;
ahd_set_residual(scb, 0);
ahd_set_sense_residual(scb, 0);
scb->sg_count = 0;
if (nseg > 0) {
void *sg = scb->sg_list;
struct scatterlist *cur_seg;
int i;
scb->platform_data->xfer_len = 0;
scsi_for_each_sg(cmd, cur_seg, nseg, i) {
dma_addr_t addr;
bus_size_t len;
addr = sg_dma_address(cur_seg);
len = sg_dma_len(cur_seg);
scb->platform_data->xfer_len += len;
sg = ahd_sg_setup(ahd, scb, sg, addr, len,
i == (nseg - 1));
}
}
LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
dev->openings--;
dev->active++;
dev->commands_issued++;
if ((dev->flags & AHD_DEV_PERIODIC_OTAG) != 0)
dev->commands_since_idle_or_otag++;
scb->flags |= SCB_ACTIVE;
ahd_queue_scb(ahd, scb);
ahd_unlock(ahd, &flags);
return 0;
}
/*
* SCSI controller interrupt handler.
*/
irqreturn_t
ahd_linux_isr(int irq, void *dev_id)
{
struct ahd_softc *ahd;
u_long flags;
int ours;
ahd = (struct ahd_softc *) dev_id;
ahd_lock(ahd, &flags);
ours = ahd_intr(ahd);
ahd_unlock(ahd, &flags);
return IRQ_RETVAL(ours);
}
void
ahd_send_async(struct ahd_softc *ahd, char channel,
u_int target, u_int lun, ac_code code)
{
switch (code) {
case AC_TRANSFER_NEG:
{
struct scsi_target *starget;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
unsigned int target_ppr_options;
BUG_ON(target == CAM_TARGET_WILDCARD);
tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id,
target, &tstate);
/*
* Don't bother reporting results while
* negotiations are still pending.
*/
if (tinfo->curr.period != tinfo->goal.period
|| tinfo->curr.width != tinfo->goal.width
|| tinfo->curr.offset != tinfo->goal.offset
|| tinfo->curr.ppr_options != tinfo->goal.ppr_options)
if (bootverbose == 0)
break;
/*
* Don't bother reporting results that
* are identical to those last reported.
*/
starget = ahd->platform_data->starget[target];
if (starget == NULL)
break;
target_ppr_options =
(spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0)
+ (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0)
+ (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0)
+ (spi_rd_strm(starget) ? MSG_EXT_PPR_RD_STRM : 0)
+ (spi_pcomp_en(starget) ? MSG_EXT_PPR_PCOMP_EN : 0)
+ (spi_rti(starget) ? MSG_EXT_PPR_RTI : 0)
+ (spi_wr_flow(starget) ? MSG_EXT_PPR_WR_FLOW : 0)
+ (spi_hold_mcs(starget) ? MSG_EXT_PPR_HOLD_MCS : 0);
if (tinfo->curr.period == spi_period(starget)
&& tinfo->curr.width == spi_width(starget)
&& tinfo->curr.offset == spi_offset(starget)
&& tinfo->curr.ppr_options == target_ppr_options)
if (bootverbose == 0)
break;
spi_period(starget) = tinfo->curr.period;
spi_width(starget) = tinfo->curr.width;
spi_offset(starget) = tinfo->curr.offset;
spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0;
spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0;
spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0;
spi_rd_strm(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RD_STRM ? 1 : 0;
spi_pcomp_en(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_PCOMP_EN ? 1 : 0;
spi_rti(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_RTI ? 1 : 0;
spi_wr_flow(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_WR_FLOW ? 1 : 0;
spi_hold_mcs(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_HOLD_MCS ? 1 : 0;
spi_display_xfer_agreement(starget);
break;
}
case AC_SENT_BDR:
{
WARN_ON(lun != CAM_LUN_WILDCARD);
scsi_report_device_reset(ahd->platform_data->host,
channel - 'A', target);
break;
}
case AC_BUS_RESET:
if (ahd->platform_data->host != NULL) {
scsi_report_bus_reset(ahd->platform_data->host,
channel - 'A');
}
break;
default:
panic("ahd_send_async: Unexpected async event");
}
}
/*
* Calls the higher level scsi done function and frees the scb.
*/
void
ahd_done(struct ahd_softc *ahd, struct scb *scb)
{
struct scsi_cmnd *cmd;
struct ahd_linux_device *dev;
if ((scb->flags & SCB_ACTIVE) == 0) {
printk("SCB %d done'd twice\n", SCB_GET_TAG(scb));
ahd_dump_card_state(ahd);
panic("Stopping for safety");
}
LIST_REMOVE(scb, pending_links);
cmd = scb->io_ctx;
dev = scb->platform_data->dev;
dev->active--;
dev->openings++;
if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) {
cmd->result &= ~(CAM_DEV_QFRZN << 16);
dev->qfrozen--;
}
ahd_linux_unmap_scb(ahd, scb);
/*
* Guard against stale sense data.
* The Linux mid-layer assumes that sense
* was retrieved anytime the first byte of
* the sense buffer looks "sane".
*/
cmd->sense_buffer[0] = 0;
if (ahd_get_transaction_status(scb) == CAM_REQ_INPROG) {
#ifdef AHD_REPORT_UNDERFLOWS
uint32_t amount_xferred;
amount_xferred =
ahd_get_transfer_length(scb) - ahd_get_residual(scb);
#endif
if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0) {
ahd_print_path(ahd, scb);
printk("Set CAM_UNCOR_PARITY\n");
}
#endif
ahd_set_transaction_status(scb, CAM_UNCOR_PARITY);
#ifdef AHD_REPORT_UNDERFLOWS
/*
* This code is disabled by default as some
* clients of the SCSI system do not properly
* initialize the underflow parameter. This
* results in spurious termination of commands
* that complete as expected (e.g. underflow is
* allowed as command can return variable amounts
* of data.
*/
} else if (amount_xferred < scb->io_ctx->underflow) {
u_int i;
ahd_print_path(ahd, scb);
printk("CDB:");
for (i = 0; i < scb->io_ctx->cmd_len; i++)
printk(" 0x%x", scb->io_ctx->cmnd[i]);
printk("\n");
ahd_print_path(ahd, scb);
printk("Saw underflow (%ld of %ld bytes). "
"Treated as error\n",
ahd_get_residual(scb),
ahd_get_transfer_length(scb));
ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR);
#endif
} else {
ahd_set_transaction_status(scb, CAM_REQ_CMP);
}
} else if (ahd_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) {
ahd_linux_handle_scsi_status(ahd, cmd->device, scb);
}
if (dev->openings == 1
&& ahd_get_transaction_status(scb) == CAM_REQ_CMP
&& ahd_get_scsi_status(scb) != SAM_STAT_TASK_SET_FULL)
dev->tag_success_count++;
/*
* Some devices deal with temporary internal resource
* shortages by returning queue full. When the queue
* full occurrs, we throttle back. Slowly try to get
* back to our previous queue depth.
*/
if ((dev->openings + dev->active) < dev->maxtags
&& dev->tag_success_count > AHD_TAG_SUCCESS_INTERVAL) {
dev->tag_success_count = 0;
dev->openings++;
}
if (dev->active == 0)
dev->commands_since_idle_or_otag = 0;
if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
printk("Recovery SCB completes\n");
if (ahd_get_transaction_status(scb) == CAM_BDR_SENT
|| ahd_get_transaction_status(scb) == CAM_REQ_ABORTED)
ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT);
if (ahd->platform_data->eh_done)
complete(ahd->platform_data->eh_done);
}
ahd_free_scb(ahd, scb);
ahd_linux_queue_cmd_complete(ahd, cmd);
}
static void
ahd_linux_handle_scsi_status(struct ahd_softc *ahd,
struct scsi_device *sdev, struct scb *scb)
{
struct ahd_devinfo devinfo;
struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
ahd_compile_devinfo(&devinfo,
ahd->our_id,
sdev->sdev_target->id, sdev->lun,
sdev->sdev_target->channel == 0 ? 'A' : 'B',
ROLE_INITIATOR);
/*
* We don't currently trust the mid-layer to
* properly deal with queue full or busy. So,
* when one occurs, we tell the mid-layer to
* unconditionally requeue the command to us
* so that we can retry it ourselves. We also
* implement our own throttling mechanism so
* we don't clobber the device with too many
* commands.
*/
switch (ahd_get_scsi_status(scb)) {
default:
break;
case SAM_STAT_CHECK_CONDITION:
case SAM_STAT_COMMAND_TERMINATED:
{
struct scsi_cmnd *cmd;
/*
* Copy sense information to the OS's cmd
* structure if it is available.
*/
cmd = scb->io_ctx;
if ((scb->flags & (SCB_SENSE|SCB_PKT_SENSE)) != 0) {
struct scsi_status_iu_header *siu;
u_int sense_size;
u_int sense_offset;
if (scb->flags & SCB_SENSE) {
sense_size = min(sizeof(struct scsi_sense_data)
- ahd_get_sense_residual(scb),
(u_long)SCSI_SENSE_BUFFERSIZE);
sense_offset = 0;
} else {
/*
* Copy only the sense data into the provided
* buffer.
*/
siu = (struct scsi_status_iu_header *)
scb->sense_data;
sense_size = min_t(size_t,
scsi_4btoul(siu->sense_length),
SCSI_SENSE_BUFFERSIZE);
sense_offset = SIU_SENSE_OFFSET(siu);
}
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
memcpy(cmd->sense_buffer,
ahd_get_sense_buf(ahd, scb)
+ sense_offset, sense_size);
set_status_byte(cmd, SAM_STAT_CHECK_CONDITION);
#ifdef AHD_DEBUG
if (ahd_debug & AHD_SHOW_SENSE) {
int i;
printk("Copied %d bytes of sense data at %d:",
sense_size, sense_offset);
for (i = 0; i < sense_size; i++) {
if ((i & 0xF) == 0)
printk("\n");
printk("0x%x ", cmd->sense_buffer[i]);
}
printk("\n");
}
#endif
}
break;
}
case SAM_STAT_TASK_SET_FULL:
/*
* By the time the core driver has returned this
* command, all other commands that were queued
* to us but not the device have been returned.
* This ensures that dev->active is equal to
* the number of commands actually queued to
* the device.
*/
dev->tag_success_count = 0;
if (dev->active != 0) {
/*
* Drop our opening count to the number
* of commands currently outstanding.
*/
dev->openings = 0;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_QFULL) != 0) {
ahd_print_path(ahd, scb);
printk("Dropping tag count to %d\n",
dev->active);
}
#endif
if (dev->active == dev->tags_on_last_queuefull) {
dev->last_queuefull_same_count++;
/*
* If we repeatedly see a queue full
* at the same queue depth, this
* device has a fixed number of tag
* slots. Lock in this tag depth
* so we stop seeing queue fulls from
* this device.
*/
if (dev->last_queuefull_same_count
== AHD_LOCK_TAGS_COUNT) {
dev->maxtags = dev->active;
ahd_print_path(ahd, scb);
printk("Locking max tag count at %d\n",
dev->active);
}
} else {
dev->tags_on_last_queuefull = dev->active;
dev->last_queuefull_same_count = 0;
}
ahd_set_transaction_status(scb, CAM_REQUEUE_REQ);
ahd_set_scsi_status(scb, SAM_STAT_GOOD);
ahd_platform_set_tags(ahd, sdev, &devinfo,
(dev->flags & AHD_DEV_Q_BASIC)
? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED);
break;
}
/*
* Drop down to a single opening, and treat this
* as if the target returned BUSY SCSI status.
*/
dev->openings = 1;
ahd_platform_set_tags(ahd, sdev, &devinfo,
(dev->flags & AHD_DEV_Q_BASIC)
? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED);
ahd_set_scsi_status(scb, SAM_STAT_BUSY);
}
}
static void
ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
{
int status;
int new_status = DID_OK;
int do_fallback = 0;
int scsi_status;
struct scsi_sense_data *sense;
/*
* Map CAM error codes into Linux Error codes. We
* avoid the conversion so that the DV code has the
* full error information available when making
* state change decisions.
*/
status = ahd_cmd_get_transaction_status(cmd);
switch (status) {
case CAM_REQ_INPROG:
case CAM_REQ_CMP:
new_status = DID_OK;
break;
case CAM_AUTOSENSE_FAIL:
new_status = DID_ERROR;
fallthrough;
case CAM_SCSI_STATUS_ERROR:
scsi_status = ahd_cmd_get_scsi_status(cmd);
switch(scsi_status) {
case SAM_STAT_COMMAND_TERMINATED:
case SAM_STAT_CHECK_CONDITION:
sense = (struct scsi_sense_data *)
cmd->sense_buffer;
if (sense->extra_len >= 5 &&
(sense->add_sense_code == 0x47
|| sense->add_sense_code == 0x48))
do_fallback = 1;
break;
default:
break;
}
break;
case CAM_REQ_ABORTED:
new_status = DID_ABORT;
break;
case CAM_BUSY:
new_status = DID_BUS_BUSY;
break;
case CAM_REQ_INVALID:
case CAM_PATH_INVALID:
new_status = DID_BAD_TARGET;
break;
case CAM_SEL_TIMEOUT:
new_status = DID_NO_CONNECT;
break;
case CAM_SCSI_BUS_RESET:
case CAM_BDR_SENT:
new_status = DID_RESET;
break;
case CAM_UNCOR_PARITY:
new_status = DID_PARITY;
do_fallback = 1;
break;
case CAM_CMD_TIMEOUT:
new_status = DID_TIME_OUT;
do_fallback = 1;
break;
case CAM_REQ_CMP_ERR:
case CAM_UNEXP_BUSFREE:
case CAM_DATA_RUN_ERR:
new_status = DID_ERROR;
do_fallback = 1;
break;
case CAM_UA_ABORT:
case CAM_NO_HBA:
case CAM_SEQUENCE_FAIL:
case CAM_CCB_LEN_ERR:
case CAM_PROVIDE_FAIL:
case CAM_REQ_TERMIO:
case CAM_UNREC_HBA_ERROR:
case CAM_REQ_TOO_BIG:
new_status = DID_ERROR;
break;
case CAM_REQUEUE_REQ:
new_status = DID_REQUEUE;
break;
default:
/* We should never get here */
new_status = DID_ERROR;
break;
}
if (do_fallback) {
printk("%s: device overrun (status %x) on %d:%d:%d\n",
ahd_name(ahd), status, cmd->device->channel,
cmd->device->id, (u8)cmd->device->lun);
}
ahd_cmd_set_transaction_status(cmd, new_status);
scsi_done(cmd);
}
static void
ahd_freeze_simq(struct ahd_softc *ahd)
{
scsi_block_requests(ahd->platform_data->host);
}
static void
ahd_release_simq(struct ahd_softc *ahd)
{
scsi_unblock_requests(ahd->platform_data->host);
}
static int
ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd)
{
struct ahd_softc *ahd;
struct ahd_linux_device *dev;
struct scb *pending_scb;
u_int saved_scbptr;
u_int active_scbptr;
u_int last_phase;
u_int cdb_byte;
int retval = SUCCESS;
int was_paused;
int paused;
int wait;
int disconnected;
ahd_mode_state saved_modes;
unsigned long flags;
pending_scb = NULL;
paused = FALSE;
wait = FALSE;
ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
scmd_printk(KERN_INFO, cmd,
"Attempting to queue an ABORT message:");
printk("CDB:");
for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
printk(" 0x%x", cmd->cmnd[cdb_byte]);
printk("\n");
ahd_lock(ahd, &flags);
/*
* First determine if we currently own this command.
* Start by searching the device queue. If not found
* there, check the pending_scb list. If not found
* at all, and the system wanted us to just abort the
* command, return success.
*/
dev = scsi_transport_device_data(cmd->device);
if (dev == NULL) {
/*
* No target device for this command exists,
* so we must not still own the command.
*/
scmd_printk(KERN_INFO, cmd, "Is not an active device\n");
goto done;
}
/*
* See if we can find a matching cmd in the pending list.
*/
LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
if (pending_scb->io_ctx == cmd)
break;
}
if (pending_scb == NULL) {
scmd_printk(KERN_INFO, cmd, "Command not found\n");
goto done;
}
if ((pending_scb->flags & SCB_RECOVERY_SCB) != 0) {
/*
* We can't queue two recovery actions using the same SCB
*/
retval = FAILED;
goto done;
}
/*
* Ensure that the card doesn't do anything
* behind our back. Also make sure that we
* didn't "just" miss an interrupt that would
* affect this cmd.
*/
was_paused = ahd_is_paused(ahd);
ahd_pause_and_flushwork(ahd);
paused = TRUE;
if ((pending_scb->flags & SCB_ACTIVE) == 0) {
scmd_printk(KERN_INFO, cmd, "Command already completed\n");
goto done;
}
printk("%s: At time of recovery, card was %spaused\n",
ahd_name(ahd), was_paused ? "" : "not ");
ahd_dump_card_state(ahd);
disconnected = TRUE;
if (ahd_search_qinfifo(ahd, cmd->device->id,
cmd->device->channel + 'A',
cmd->device->lun,
pending_scb->hscb->tag,
ROLE_INITIATOR, CAM_REQ_ABORTED,
SEARCH_COMPLETE) > 0) {
printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
ahd_name(ahd), cmd->device->channel,
cmd->device->id, (u8)cmd->device->lun);
goto done;
}
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
last_phase = ahd_inb(ahd, LASTPHASE);
saved_scbptr = ahd_get_scbptr(ahd);
active_scbptr = saved_scbptr;
if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) {
struct scb *bus_scb;
bus_scb = ahd_lookup_scb(ahd, active_scbptr);
if (bus_scb == pending_scb)
disconnected = FALSE;
}
/*
* At this point, pending_scb is the scb associated with the
* passed in command. That command is currently active on the
* bus or is in the disconnected state.
*/
ahd_inb(ahd, SAVED_SCSIID);
if (last_phase != P_BUSFREE
&& SCB_GET_TAG(pending_scb) == active_scbptr) {
/*
* We're active on the bus, so assert ATN
* and hope that the target responds.
*/
pending_scb = ahd_lookup_scb(ahd, active_scbptr);
pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT;
ahd_outb(ahd, MSG_OUT, HOST_MSG);
ahd_outb(ahd, SCSISIGO, last_phase|ATNO);
scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n");
wait = TRUE;
} else if (disconnected) {
/*
* Actually re-queue this SCB in an attempt
* to select the device before it reconnects.
*/
pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT;
ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb));
pending_scb->hscb->cdb_len = 0;
pending_scb->hscb->task_attribute = 0;
pending_scb->hscb->task_management = SIU_TASKMGMT_ABORT_TASK;
if ((pending_scb->flags & SCB_PACKETIZED) != 0) {
/*
* Mark the SCB has having an outstanding
* task management function. Should the command
* complete normally before the task management
* function can be sent, the host will be notified
* to abort our requeued SCB.
*/
ahd_outb(ahd, SCB_TASK_MANAGEMENT,
pending_scb->hscb->task_management);
} else {
/*
* If non-packetized, set the MK_MESSAGE control
* bit indicating that we desire to send a message.
* We also set the disconnected flag since there is
* no guarantee that our SCB control byte matches
* the version on the card. We don't want the
* sequencer to abort the command thinking an
* unsolicited reselection occurred.
*/
pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED;
/*
* The sequencer will never re-reference the
* in-core SCB. To make sure we are notified
* during reselection, set the MK_MESSAGE flag in
* the card's copy of the SCB.
*/
ahd_outb(ahd, SCB_CONTROL,
ahd_inb(ahd, SCB_CONTROL)|MK_MESSAGE);
}
/*
* Clear out any entries in the QINFIFO first
* so we are the next SCB for this target
* to run.
*/
ahd_search_qinfifo(ahd, cmd->device->id,
cmd->device->channel + 'A', cmd->device->lun,
SCB_LIST_NULL, ROLE_INITIATOR,
CAM_REQUEUE_REQ, SEARCH_COMPLETE);
ahd_qinfifo_requeue_tail(ahd, pending_scb);
ahd_set_scbptr(ahd, saved_scbptr);
ahd_print_path(ahd, pending_scb);
printk("Device is disconnected, re-queuing SCB\n");
wait = TRUE;
} else {
scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n");
retval = FAILED;
}
ahd_restore_modes(ahd, saved_modes);
done:
if (paused)
ahd_unpause(ahd);
if (wait) {
DECLARE_COMPLETION_ONSTACK(done);
ahd->platform_data->eh_done = &done;
ahd_unlock(ahd, &flags);
printk("%s: Recovery code sleeping\n", ahd_name(ahd));
if (!wait_for_completion_timeout(&done, 5 * HZ)) {
ahd_lock(ahd, &flags);
ahd->platform_data->eh_done = NULL;
ahd_unlock(ahd, &flags);
printk("%s: Timer Expired (active %d)\n",
ahd_name(ahd), dev->active);
retval = FAILED;
}
printk("Recovery code awake\n");
} else
ahd_unlock(ahd, &flags);
if (retval != SUCCESS)
printk("%s: Command abort returning 0x%x\n",
ahd_name(ahd), retval);
return retval;
}
static void ahd_linux_set_width(struct scsi_target *starget, int width)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_devinfo devinfo;
unsigned long flags;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_lock(ahd, &flags);
ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_period(struct scsi_target *starget, int period)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options;
unsigned int dt;
unsigned long flags;
unsigned long offset = tinfo->goal.offset;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: set period to %d\n", ahd_name(ahd), period);
#endif
if (offset == 0)
offset = MAX_OFFSET;
if (period < 8)
period = 8;
if (period < 10) {
if (spi_max_width(starget)) {
ppr_options |= MSG_EXT_PPR_DT_REQ;
if (period == 8)
ppr_options |= MSG_EXT_PPR_IU_REQ;
} else
period = 10;
}
dt = ppr_options & MSG_EXT_PPR_DT_REQ;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
/* all PPR requests apart from QAS require wide transfers */
if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) {
if (spi_width(starget) == 0)
ppr_options &= MSG_EXT_PPR_QAS_REQ;
}
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_offset(struct scsi_target *starget, int offset)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = 0;
unsigned int period = 0;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: set offset to %d\n", ahd_name(ahd), offset);
#endif
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
if (offset != 0) {
period = tinfo->goal.period;
ppr_options = tinfo->goal.ppr_options;
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
}
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options,
AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_dt(struct scsi_target *starget, int dt)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_DT_REQ;
unsigned int period = tinfo->goal.period;
unsigned int width = tinfo->goal.width;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: %s DT\n", ahd_name(ahd),
dt ? "enabling" : "disabling");
#endif
if (dt && spi_max_width(starget)) {
ppr_options |= MSG_EXT_PPR_DT_REQ;
if (!width)
ahd_linux_set_width(starget, 1);
} else {
if (period <= 9)
period = 10; /* If resetting DT, period must be >= 25ns */
/* IU is invalid without DT set */
ppr_options &= ~MSG_EXT_PPR_IU_REQ;
}
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_qas(struct scsi_target *starget, int qas)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_QAS_REQ;
unsigned int period = tinfo->goal.period;
unsigned int dt;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: %s QAS\n", ahd_name(ahd),
qas ? "enabling" : "disabling");
#endif
if (qas) {
ppr_options |= MSG_EXT_PPR_QAS_REQ;
}
dt = ppr_options & MSG_EXT_PPR_DT_REQ;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_iu(struct scsi_target *starget, int iu)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_IU_REQ;
unsigned int period = tinfo->goal.period;
unsigned int dt;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: %s IU\n", ahd_name(ahd),
iu ? "enabling" : "disabling");
#endif
if (iu && spi_max_width(starget)) {
ppr_options |= MSG_EXT_PPR_IU_REQ;
ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */
}
dt = ppr_options & MSG_EXT_PPR_DT_REQ;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_RD_STRM;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: %s Read Streaming\n", ahd_name(ahd),
rdstrm ? "enabling" : "disabling");
#endif
if (rdstrm && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_RD_STRM;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_WR_FLOW;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: %s Write Flow Control\n", ahd_name(ahd),
wrflow ? "enabling" : "disabling");
#endif
if (wrflow && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_WR_FLOW;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_rti(struct scsi_target *starget, int rti)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_RTI;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
if ((ahd->features & AHD_RTI) == 0) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: RTI not available\n", ahd_name(ahd));
#endif
return;
}
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: %s RTI\n", ahd_name(ahd),
rti ? "enabling" : "disabling");
#endif
if (rti && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_RTI;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_PCOMP_EN;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_DV) != 0)
printk("%s: %s Precompensation\n", ahd_name(ahd),
pcomp ? "Enable" : "Disable");
#endif
if (pcomp && spi_max_width(starget)) {
uint8_t precomp;
if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
const struct ahd_linux_iocell_opts *iocell_opts;
iocell_opts = &aic79xx_iocell_info[ahd->unit];
precomp = iocell_opts->precomp;
} else {
precomp = AIC79XX_DEFAULT_PRECOMP;
}
ppr_options |= MSG_EXT_PPR_PCOMP_EN;
AHD_SET_PRECOMP(ahd, precomp);
} else {
AHD_SET_PRECOMP(ahd, 0);
}
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahd_softc *ahd = *((struct ahd_softc **)shost->hostdata);
struct ahd_tmode_tstate *tstate;
struct ahd_initiator_tinfo *tinfo
= ahd_fetch_transinfo(ahd,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahd_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_HOLD_MCS;
unsigned int period = tinfo->goal.period;
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
if (hold && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_HOLD_MCS;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahd_find_syncrate(ahd, &period, &ppr_options,
dt ? AHD_SYNCRATE_MAX : AHD_SYNCRATE_ULTRA2);
ahd_lock(ahd, &flags);
ahd_set_syncrate(ahd, &devinfo, period, tinfo->goal.offset,
ppr_options, AHD_TRANS_GOAL, FALSE);
ahd_unlock(ahd, &flags);
}
static void ahd_linux_get_signalling(struct Scsi_Host *shost)
{
struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
unsigned long flags;
u8 mode;
ahd_lock(ahd, &flags);
ahd_pause(ahd);
mode = ahd_inb(ahd, SBLKCTL);
ahd_unpause(ahd);
ahd_unlock(ahd, &flags);
if (mode & ENAB40)
spi_signalling(shost) = SPI_SIGNAL_LVD;
else if (mode & ENAB20)
spi_signalling(shost) = SPI_SIGNAL_SE;
else
spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
}
static struct spi_function_template ahd_linux_transport_functions = {
.set_offset = ahd_linux_set_offset,
.show_offset = 1,
.set_period = ahd_linux_set_period,
.show_period = 1,
.set_width = ahd_linux_set_width,
.show_width = 1,
.set_dt = ahd_linux_set_dt,
.show_dt = 1,
.set_iu = ahd_linux_set_iu,
.show_iu = 1,
.set_qas = ahd_linux_set_qas,
.show_qas = 1,
.set_rd_strm = ahd_linux_set_rd_strm,
.show_rd_strm = 1,
.set_wr_flow = ahd_linux_set_wr_flow,
.show_wr_flow = 1,
.set_rti = ahd_linux_set_rti,
.show_rti = 1,
.set_pcomp_en = ahd_linux_set_pcomp_en,
.show_pcomp_en = 1,
.set_hold_mcs = ahd_linux_set_hold_mcs,
.show_hold_mcs = 1,
.get_signalling = ahd_linux_get_signalling,
};
static int __init
ahd_linux_init(void)
{
int error = 0;
/*
* If we've been passed any parameters, process them now.
*/
if (aic79xx)
aic79xx_setup(aic79xx);
ahd_linux_transport_template =
spi_attach_transport(&ahd_linux_transport_functions);
if (!ahd_linux_transport_template)
return -ENODEV;
scsi_transport_reserve_device(ahd_linux_transport_template,
sizeof(struct ahd_linux_device));
error = ahd_linux_pci_init();
if (error)
spi_release_transport(ahd_linux_transport_template);
return error;
}
static void __exit
ahd_linux_exit(void)
{
ahd_linux_pci_exit();
spi_release_transport(ahd_linux_transport_template);
}
module_init(ahd_linux_init);
module_exit(ahd_linux_exit);
|
linux-master
|
drivers/scsi/aic7xxx/aic79xx_osm.c
|
/*
* Copyright (c) 2000-2001 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* String handling code courtesy of Gerard Roudier's <[email protected]>
* sym driver.
*
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_proc.c#29 $
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"
static void ahc_dump_target_state(struct ahc_softc *ahc,
struct seq_file *m,
u_int our_id, char channel,
u_int target_id, u_int target_offset);
static void ahc_dump_device_state(struct seq_file *m,
struct scsi_device *dev);
/*
* Table of syncrates that don't follow the "divisible by 4"
* rule. This table will be expanded in future SCSI specs.
*/
static const struct {
u_int period_factor;
u_int period; /* in 100ths of ns */
} scsi_syncrates[] = {
{ 0x08, 625 }, /* FAST-160 */
{ 0x09, 1250 }, /* FAST-80 */
{ 0x0a, 2500 }, /* FAST-40 40MHz */
{ 0x0b, 3030 }, /* FAST-40 33MHz */
{ 0x0c, 5000 } /* FAST-20 */
};
/*
* Return the frequency in kHz corresponding to the given
* sync period factor.
*/
static u_int
ahc_calc_syncsrate(u_int period_factor)
{
int i;
/* See if the period is in the "exception" table */
for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) {
if (period_factor == scsi_syncrates[i].period_factor) {
/* Period in kHz */
return (100000000 / scsi_syncrates[i].period);
}
}
/*
* Wasn't in the table, so use the standard
* 4 times conversion.
*/
return (10000000 / (period_factor * 4 * 10));
}
static void
ahc_format_transinfo(struct seq_file *m, struct ahc_transinfo *tinfo)
{
u_int speed;
u_int freq;
u_int mb;
speed = 3300;
freq = 0;
if (tinfo->offset != 0) {
freq = ahc_calc_syncsrate(tinfo->period);
speed = freq;
}
speed *= (0x01 << tinfo->width);
mb = speed / 1000;
if (mb > 0)
seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000);
else
seq_printf(m, "%dKB/s transfers", speed);
if (freq != 0) {
seq_printf(m, " (%d.%03dMHz%s, offset %d",
freq / 1000, freq % 1000,
(tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
? " DT" : "", tinfo->offset);
}
if (tinfo->width > 0) {
if (freq != 0) {
seq_puts(m, ", ");
} else {
seq_puts(m, " (");
}
seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width));
} else if (freq != 0) {
seq_putc(m, ')');
}
seq_putc(m, '\n');
}
static void
ahc_dump_target_state(struct ahc_softc *ahc, struct seq_file *m,
u_int our_id, char channel, u_int target_id,
u_int target_offset)
{
struct scsi_target *starget;
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
int lun;
tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
target_id, &tstate);
if ((ahc->features & AHC_TWIN) != 0)
seq_printf(m, "Channel %c ", channel);
seq_printf(m, "Target %d Negotiation Settings\n", target_id);
seq_puts(m, "\tUser: ");
ahc_format_transinfo(m, &tinfo->user);
starget = ahc->platform_data->starget[target_offset];
if (!starget)
return;
seq_puts(m, "\tGoal: ");
ahc_format_transinfo(m, &tinfo->goal);
seq_puts(m, "\tCurr: ");
ahc_format_transinfo(m, &tinfo->curr);
for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
struct scsi_device *sdev;
sdev = scsi_device_lookup_by_target(starget, lun);
if (sdev == NULL)
continue;
ahc_dump_device_state(m, sdev);
}
}
static void
ahc_dump_device_state(struct seq_file *m, struct scsi_device *sdev)
{
struct ahc_linux_device *dev = scsi_transport_device_data(sdev);
seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n",
sdev->sdev_target->channel + 'A',
sdev->sdev_target->id, (u8)sdev->lun);
seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued);
seq_printf(m, "\t\tCommands Active %d\n", dev->active);
seq_printf(m, "\t\tCommand Openings %d\n", dev->openings);
seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags);
seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
}
int
ahc_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length)
{
struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
struct seeprom_descriptor sd;
int have_seeprom;
u_long s;
int paused;
int written;
/* Default to failure. */
written = -EINVAL;
ahc_lock(ahc, &s);
paused = ahc_is_paused(ahc);
if (!paused)
ahc_pause(ahc);
if (length != sizeof(struct seeprom_config)) {
printk("ahc_proc_write_seeprom: incorrect buffer size\n");
goto done;
}
have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer);
if (have_seeprom == 0) {
printk("ahc_proc_write_seeprom: cksum verification failed\n");
goto done;
}
sd.sd_ahc = ahc;
#if AHC_PCI_CONFIG > 0
if ((ahc->chip & AHC_PCI) != 0) {
sd.sd_control_offset = SEECTL;
sd.sd_status_offset = SEECTL;
sd.sd_dataout_offset = SEECTL;
if (ahc->flags & AHC_LARGE_SEEPROM)
sd.sd_chip = C56_66;
else
sd.sd_chip = C46;
sd.sd_MS = SEEMS;
sd.sd_RDY = SEERDY;
sd.sd_CS = SEECS;
sd.sd_CK = SEECK;
sd.sd_DO = SEEDO;
sd.sd_DI = SEEDI;
have_seeprom = ahc_acquire_seeprom(ahc, &sd);
} else
#endif
if ((ahc->chip & AHC_VL) != 0) {
sd.sd_control_offset = SEECTL_2840;
sd.sd_status_offset = STATUS_2840;
sd.sd_dataout_offset = STATUS_2840;
sd.sd_chip = C46;
sd.sd_MS = 0;
sd.sd_RDY = EEPROM_TF;
sd.sd_CS = CS_2840;
sd.sd_CK = CK_2840;
sd.sd_DO = DO_2840;
sd.sd_DI = DI_2840;
have_seeprom = TRUE;
} else {
printk("ahc_proc_write_seeprom: unsupported adapter type\n");
goto done;
}
if (!have_seeprom) {
printk("ahc_proc_write_seeprom: No Serial EEPROM\n");
goto done;
} else {
u_int start_addr;
if (ahc->seep_config == NULL) {
ahc->seep_config = kmalloc(sizeof(*ahc->seep_config),
GFP_ATOMIC);
if (ahc->seep_config == NULL) {
printk("aic7xxx: Unable to allocate serial "
"eeprom buffer. Write failing\n");
goto done;
}
}
printk("aic7xxx: Writing Serial EEPROM\n");
start_addr = 32 * (ahc->channel - 'A');
ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr,
sizeof(struct seeprom_config)/2);
ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config,
start_addr, sizeof(struct seeprom_config)/2);
#if AHC_PCI_CONFIG > 0
if ((ahc->chip & AHC_VL) == 0)
ahc_release_seeprom(&sd);
#endif
written = length;
}
done:
if (!paused)
ahc_unpause(ahc);
ahc_unlock(ahc, &s);
return (written);
}
/*
* Return information to handle /proc support for the driver.
*/
int
ahc_linux_show_info(struct seq_file *m, struct Scsi_Host *shost)
{
struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
char ahc_info[256];
u_int max_targ;
u_int i;
seq_printf(m, "Adaptec AIC7xxx driver version: %s\n",
AIC7XXX_DRIVER_VERSION);
seq_printf(m, "%s\n", ahc->description);
ahc_controller_info(ahc, ahc_info);
seq_printf(m, "%s\n", ahc_info);
seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n",
ahc->scb_data->numscbs, AHC_NSEG);
if (ahc->seep_config == NULL)
seq_puts(m, "No Serial EEPROM\n");
else {
seq_puts(m, "Serial EEPROM:\n");
for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) {
if (((i % 8) == 0) && (i != 0)) {
seq_putc(m, '\n');
}
seq_printf(m, "0x%.4x ",
((uint16_t*)ahc->seep_config)[i]);
}
seq_putc(m, '\n');
}
seq_putc(m, '\n');
max_targ = 16;
if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
max_targ = 8;
for (i = 0; i < max_targ; i++) {
u_int our_id;
u_int target_id;
char channel;
channel = 'A';
our_id = ahc->our_id;
target_id = i;
if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
channel = 'B';
our_id = ahc->our_id_b;
target_id = i % 8;
}
ahc_dump_target_state(ahc, m, our_id,
channel, target_id, i);
}
return 0;
}
|
linux-master
|
drivers/scsi/aic7xxx/aic7xxx_proc.c
|
/*
* Core routines and tables shareable across OS platforms.
*
* Copyright (c) 1994-2002 Justin T. Gibbs.
* Copyright (c) 2000-2003 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.c#250 $
*/
#include "aic79xx_osm.h"
#include "aic79xx_inline.h"
#include "aicasm/aicasm_insformat.h"
/***************************** Lookup Tables **********************************/
static const char *const ahd_chip_names[] =
{
"NONE",
"aic7901",
"aic7902",
"aic7901A"
};
/*
* Hardware error codes.
*/
struct ahd_hard_error_entry {
uint8_t errno;
const char *errmesg;
};
static const struct ahd_hard_error_entry ahd_hard_errors[] = {
{ DSCTMOUT, "Discard Timer has timed out" },
{ ILLOPCODE, "Illegal Opcode in sequencer program" },
{ SQPARERR, "Sequencer Parity Error" },
{ DPARERR, "Data-path Parity Error" },
{ MPARERR, "Scratch or SCB Memory Parity Error" },
{ CIOPARERR, "CIOBUS Parity Error" },
};
static const u_int num_errors = ARRAY_SIZE(ahd_hard_errors);
static const struct ahd_phase_table_entry ahd_phase_table[] =
{
{ P_DATAOUT, NOP, "in Data-out phase" },
{ P_DATAIN, INITIATOR_ERROR, "in Data-in phase" },
{ P_DATAOUT_DT, NOP, "in DT Data-out phase" },
{ P_DATAIN_DT, INITIATOR_ERROR, "in DT Data-in phase" },
{ P_COMMAND, NOP, "in Command phase" },
{ P_MESGOUT, NOP, "in Message-out phase" },
{ P_STATUS, INITIATOR_ERROR, "in Status phase" },
{ P_MESGIN, MSG_PARITY_ERROR, "in Message-in phase" },
{ P_BUSFREE, NOP, "while idle" },
{ 0, NOP, "in unknown phase" }
};
/*
* In most cases we only wish to itterate over real phases, so
* exclude the last element from the count.
*/
static const u_int num_phases = ARRAY_SIZE(ahd_phase_table) - 1;
/* Our Sequencer Program */
#include "aic79xx_seq.h"
/**************************** Function Declarations ***************************/
static void ahd_handle_transmission_error(struct ahd_softc *ahd);
static void ahd_handle_lqiphase_error(struct ahd_softc *ahd,
u_int lqistat1);
static int ahd_handle_pkt_busfree(struct ahd_softc *ahd,
u_int busfreetime);
static int ahd_handle_nonpkt_busfree(struct ahd_softc *ahd);
static void ahd_handle_proto_violation(struct ahd_softc *ahd);
static void ahd_force_renegotiation(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo);
static struct ahd_tmode_tstate*
ahd_alloc_tstate(struct ahd_softc *ahd,
u_int scsi_id, char channel);
#ifdef AHD_TARGET_MODE
static void ahd_free_tstate(struct ahd_softc *ahd,
u_int scsi_id, char channel, int force);
#endif
static void ahd_devlimited_syncrate(struct ahd_softc *ahd,
struct ahd_initiator_tinfo *,
u_int *period,
u_int *ppr_options,
role_t role);
static void ahd_update_neg_table(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo,
struct ahd_transinfo *tinfo);
static void ahd_update_pending_scbs(struct ahd_softc *ahd);
static void ahd_fetch_devinfo(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo);
static void ahd_scb_devinfo(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo,
struct scb *scb);
static void ahd_setup_initiator_msgout(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo,
struct scb *scb);
static void ahd_build_transfer_msg(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo);
static void ahd_construct_sdtr(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo,
u_int period, u_int offset);
static void ahd_construct_wdtr(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo,
u_int bus_width);
static void ahd_construct_ppr(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo,
u_int period, u_int offset,
u_int bus_width, u_int ppr_options);
static void ahd_clear_msg_state(struct ahd_softc *ahd);
static void ahd_handle_message_phase(struct ahd_softc *ahd);
typedef enum {
AHDMSG_1B,
AHDMSG_2B,
AHDMSG_EXT
} ahd_msgtype;
static int ahd_sent_msg(struct ahd_softc *ahd, ahd_msgtype type,
u_int msgval, int full);
static int ahd_parse_msg(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo);
static int ahd_handle_msg_reject(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo);
static void ahd_handle_ign_wide_residue(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo);
static void ahd_reinitialize_dataptrs(struct ahd_softc *ahd);
static void ahd_handle_devreset(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo,
u_int lun, cam_status status,
char *message, int verbose_level);
#ifdef AHD_TARGET_MODE
static void ahd_setup_target_msgin(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo,
struct scb *scb);
#endif
static u_int ahd_sglist_size(struct ahd_softc *ahd);
static u_int ahd_sglist_allocsize(struct ahd_softc *ahd);
static bus_dmamap_callback_t
ahd_dmamap_cb;
static void ahd_initialize_hscbs(struct ahd_softc *ahd);
static int ahd_init_scbdata(struct ahd_softc *ahd);
static void ahd_fini_scbdata(struct ahd_softc *ahd);
static void ahd_setup_iocell_workaround(struct ahd_softc *ahd);
static void ahd_iocell_first_selection(struct ahd_softc *ahd);
static void ahd_add_col_list(struct ahd_softc *ahd,
struct scb *scb, u_int col_idx);
static void ahd_rem_col_list(struct ahd_softc *ahd,
struct scb *scb);
static void ahd_chip_init(struct ahd_softc *ahd);
static void ahd_qinfifo_requeue(struct ahd_softc *ahd,
struct scb *prev_scb,
struct scb *scb);
static int ahd_qinfifo_count(struct ahd_softc *ahd);
static int ahd_search_scb_list(struct ahd_softc *ahd, int target,
char channel, int lun, u_int tag,
role_t role, uint32_t status,
ahd_search_action action,
u_int *list_head, u_int *list_tail,
u_int tid);
static void ahd_stitch_tid_list(struct ahd_softc *ahd,
u_int tid_prev, u_int tid_cur,
u_int tid_next);
static void ahd_add_scb_to_free_list(struct ahd_softc *ahd,
u_int scbid);
static u_int ahd_rem_wscb(struct ahd_softc *ahd, u_int scbid,
u_int prev, u_int next, u_int tid);
static void ahd_reset_current_bus(struct ahd_softc *ahd);
static void ahd_stat_timer(struct timer_list *t);
#ifdef AHD_DUMP_SEQ
static void ahd_dumpseq(struct ahd_softc *ahd);
#endif
static void ahd_loadseq(struct ahd_softc *ahd);
static int ahd_check_patch(struct ahd_softc *ahd,
const struct patch **start_patch,
u_int start_instr, u_int *skip_addr);
static u_int ahd_resolve_seqaddr(struct ahd_softc *ahd,
u_int address);
static void ahd_download_instr(struct ahd_softc *ahd,
u_int instrptr, uint8_t *dconsts);
static int ahd_probe_stack_size(struct ahd_softc *ahd);
static int ahd_scb_active_in_fifo(struct ahd_softc *ahd,
struct scb *scb);
static void ahd_run_data_fifo(struct ahd_softc *ahd,
struct scb *scb);
#ifdef AHD_TARGET_MODE
static void ahd_queue_lstate_event(struct ahd_softc *ahd,
struct ahd_tmode_lstate *lstate,
u_int initiator_id,
u_int event_type,
u_int event_arg);
static void ahd_update_scsiid(struct ahd_softc *ahd,
u_int targid_mask);
static int ahd_handle_target_cmd(struct ahd_softc *ahd,
struct target_cmd *cmd);
#endif
static int ahd_abort_scbs(struct ahd_softc *ahd, int target,
char channel, int lun, u_int tag,
role_t role, uint32_t status);
static void ahd_alloc_scbs(struct ahd_softc *ahd);
static void ahd_busy_tcl(struct ahd_softc *ahd, u_int tcl,
u_int scbid);
static void ahd_calc_residual(struct ahd_softc *ahd,
struct scb *scb);
static void ahd_clear_critical_section(struct ahd_softc *ahd);
static void ahd_clear_intstat(struct ahd_softc *ahd);
static void ahd_enable_coalescing(struct ahd_softc *ahd,
int enable);
static u_int ahd_find_busy_tcl(struct ahd_softc *ahd, u_int tcl);
static void ahd_freeze_devq(struct ahd_softc *ahd,
struct scb *scb);
static void ahd_handle_scb_status(struct ahd_softc *ahd,
struct scb *scb);
static const struct ahd_phase_table_entry* ahd_lookup_phase_entry(int phase);
static void ahd_shutdown(void *arg);
static void ahd_update_coalescing_values(struct ahd_softc *ahd,
u_int timer,
u_int maxcmds,
u_int mincmds);
static int ahd_verify_vpd_cksum(struct vpd_config *vpd);
static int ahd_wait_seeprom(struct ahd_softc *ahd);
static int ahd_match_scb(struct ahd_softc *ahd, struct scb *scb,
int target, char channel, int lun,
u_int tag, role_t role);
static void ahd_reset_cmds_pending(struct ahd_softc *ahd);
/*************************** Interrupt Services *******************************/
static void ahd_run_qoutfifo(struct ahd_softc *ahd);
#ifdef AHD_TARGET_MODE
static void ahd_run_tqinfifo(struct ahd_softc *ahd, int paused);
#endif
static void ahd_handle_hwerrint(struct ahd_softc *ahd);
static void ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat);
static void ahd_handle_scsiint(struct ahd_softc *ahd,
u_int intstat);
/************************ Sequencer Execution Control *************************/
void
ahd_set_modes(struct ahd_softc *ahd, ahd_mode src, ahd_mode dst)
{
if (ahd->src_mode == src && ahd->dst_mode == dst)
return;
#ifdef AHD_DEBUG
if (ahd->src_mode == AHD_MODE_UNKNOWN
|| ahd->dst_mode == AHD_MODE_UNKNOWN)
panic("Setting mode prior to saving it.\n");
if ((ahd_debug & AHD_SHOW_MODEPTR) != 0)
printk("%s: Setting mode 0x%x\n", ahd_name(ahd),
ahd_build_mode_state(ahd, src, dst));
#endif
ahd_outb(ahd, MODE_PTR, ahd_build_mode_state(ahd, src, dst));
ahd->src_mode = src;
ahd->dst_mode = dst;
}
static void
ahd_update_modes(struct ahd_softc *ahd)
{
ahd_mode_state mode_ptr;
ahd_mode src;
ahd_mode dst;
mode_ptr = ahd_inb(ahd, MODE_PTR);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MODEPTR) != 0)
printk("Reading mode 0x%x\n", mode_ptr);
#endif
ahd_extract_mode_state(ahd, mode_ptr, &src, &dst);
ahd_known_modes(ahd, src, dst);
}
static void
ahd_assert_modes(struct ahd_softc *ahd, ahd_mode srcmode,
ahd_mode dstmode, const char *file, int line)
{
#ifdef AHD_DEBUG
if ((srcmode & AHD_MK_MSK(ahd->src_mode)) == 0
|| (dstmode & AHD_MK_MSK(ahd->dst_mode)) == 0) {
panic("%s:%s:%d: Mode assertion failed.\n",
ahd_name(ahd), file, line);
}
#endif
}
#define AHD_ASSERT_MODES(ahd, source, dest) \
ahd_assert_modes(ahd, source, dest, __FILE__, __LINE__);
ahd_mode_state
ahd_save_modes(struct ahd_softc *ahd)
{
if (ahd->src_mode == AHD_MODE_UNKNOWN
|| ahd->dst_mode == AHD_MODE_UNKNOWN)
ahd_update_modes(ahd);
return (ahd_build_mode_state(ahd, ahd->src_mode, ahd->dst_mode));
}
void
ahd_restore_modes(struct ahd_softc *ahd, ahd_mode_state state)
{
ahd_mode src;
ahd_mode dst;
ahd_extract_mode_state(ahd, state, &src, &dst);
ahd_set_modes(ahd, src, dst);
}
/*
* Determine whether the sequencer has halted code execution.
* Returns non-zero status if the sequencer is stopped.
*/
int
ahd_is_paused(struct ahd_softc *ahd)
{
return ((ahd_inb(ahd, HCNTRL) & PAUSE) != 0);
}
/*
* Request that the sequencer stop and wait, indefinitely, for it
* to stop. The sequencer will only acknowledge that it is paused
* once it has reached an instruction boundary and PAUSEDIS is
* cleared in the SEQCTL register. The sequencer may use PAUSEDIS
* for critical sections.
*/
void
ahd_pause(struct ahd_softc *ahd)
{
ahd_outb(ahd, HCNTRL, ahd->pause);
/*
* Since the sequencer can disable pausing in a critical section, we
* must loop until it actually stops.
*/
while (ahd_is_paused(ahd) == 0)
;
}
/*
* Allow the sequencer to continue program execution.
* We check here to ensure that no additional interrupt
* sources that would cause the sequencer to halt have been
* asserted. If, for example, a SCSI bus reset is detected
* while we are fielding a different, pausing, interrupt type,
* we don't want to release the sequencer before going back
* into our interrupt handler and dealing with this new
* condition.
*/
void
ahd_unpause(struct ahd_softc *ahd)
{
/*
* Automatically restore our modes to those saved
* prior to the first change of the mode.
*/
if (ahd->saved_src_mode != AHD_MODE_UNKNOWN
&& ahd->saved_dst_mode != AHD_MODE_UNKNOWN) {
if ((ahd->flags & AHD_UPDATE_PEND_CMDS) != 0)
ahd_reset_cmds_pending(ahd);
ahd_set_modes(ahd, ahd->saved_src_mode, ahd->saved_dst_mode);
}
if ((ahd_inb(ahd, INTSTAT) & ~CMDCMPLT) == 0)
ahd_outb(ahd, HCNTRL, ahd->unpause);
ahd_known_modes(ahd, AHD_MODE_UNKNOWN, AHD_MODE_UNKNOWN);
}
/*********************** Scatter Gather List Handling *************************/
void *
ahd_sg_setup(struct ahd_softc *ahd, struct scb *scb,
void *sgptr, dma_addr_t addr, bus_size_t len, int last)
{
scb->sg_count++;
if (sizeof(dma_addr_t) > 4
&& (ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
struct ahd_dma64_seg *sg;
sg = (struct ahd_dma64_seg *)sgptr;
sg->addr = ahd_htole64(addr);
sg->len = ahd_htole32(len | (last ? AHD_DMA_LAST_SEG : 0));
return (sg + 1);
} else {
struct ahd_dma_seg *sg;
sg = (struct ahd_dma_seg *)sgptr;
sg->addr = ahd_htole32(addr & 0xFFFFFFFF);
sg->len = ahd_htole32(len | ((addr >> 8) & 0x7F000000)
| (last ? AHD_DMA_LAST_SEG : 0));
return (sg + 1);
}
}
static void
ahd_setup_scb_common(struct ahd_softc *ahd, struct scb *scb)
{
/* XXX Handle target mode SCBs. */
scb->crc_retry_count = 0;
if ((scb->flags & SCB_PACKETIZED) != 0) {
/* XXX what about ACA?? It is type 4, but TAG_TYPE == 0x3. */
scb->hscb->task_attribute = scb->hscb->control & SCB_TAG_TYPE;
} else {
if (ahd_get_transfer_length(scb) & 0x01)
scb->hscb->task_attribute = SCB_XFERLEN_ODD;
else
scb->hscb->task_attribute = 0;
}
if (scb->hscb->cdb_len <= MAX_CDB_LEN_WITH_SENSE_ADDR
|| (scb->hscb->cdb_len & SCB_CDB_LEN_PTR) != 0)
scb->hscb->shared_data.idata.cdb_plus_saddr.sense_addr =
ahd_htole32(scb->sense_busaddr);
}
static void
ahd_setup_data_scb(struct ahd_softc *ahd, struct scb *scb)
{
/*
* Copy the first SG into the "current" data ponter area.
*/
if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
struct ahd_dma64_seg *sg;
sg = (struct ahd_dma64_seg *)scb->sg_list;
scb->hscb->dataptr = sg->addr;
scb->hscb->datacnt = sg->len;
} else {
struct ahd_dma_seg *sg;
uint32_t *dataptr_words;
sg = (struct ahd_dma_seg *)scb->sg_list;
dataptr_words = (uint32_t*)&scb->hscb->dataptr;
dataptr_words[0] = sg->addr;
dataptr_words[1] = 0;
if ((ahd->flags & AHD_39BIT_ADDRESSING) != 0) {
uint64_t high_addr;
high_addr = ahd_le32toh(sg->len) & 0x7F000000;
scb->hscb->dataptr |= ahd_htole64(high_addr << 8);
}
scb->hscb->datacnt = sg->len;
}
/*
* Note where to find the SG entries in bus space.
* We also set the full residual flag which the
* sequencer will clear as soon as a data transfer
* occurs.
*/
scb->hscb->sgptr = ahd_htole32(scb->sg_list_busaddr|SG_FULL_RESID);
}
static void
ahd_setup_noxfer_scb(struct ahd_softc *ahd, struct scb *scb)
{
scb->hscb->sgptr = ahd_htole32(SG_LIST_NULL);
scb->hscb->dataptr = 0;
scb->hscb->datacnt = 0;
}
/************************** Memory mapping routines ***************************/
static void *
ahd_sg_bus_to_virt(struct ahd_softc *ahd, struct scb *scb, uint32_t sg_busaddr)
{
dma_addr_t sg_offset;
/* sg_list_phys points to entry 1, not 0 */
sg_offset = sg_busaddr - (scb->sg_list_busaddr - ahd_sg_size(ahd));
return ((uint8_t *)scb->sg_list + sg_offset);
}
static uint32_t
ahd_sg_virt_to_bus(struct ahd_softc *ahd, struct scb *scb, void *sg)
{
dma_addr_t sg_offset;
/* sg_list_phys points to entry 1, not 0 */
sg_offset = ((uint8_t *)sg - (uint8_t *)scb->sg_list)
- ahd_sg_size(ahd);
return (scb->sg_list_busaddr + sg_offset);
}
static void
ahd_sync_scb(struct ahd_softc *ahd, struct scb *scb, int op)
{
ahd_dmamap_sync(ahd, ahd->scb_data.hscb_dmat,
scb->hscb_map->dmamap,
/*offset*/(uint8_t*)scb->hscb - scb->hscb_map->vaddr,
/*len*/sizeof(*scb->hscb), op);
}
void
ahd_sync_sglist(struct ahd_softc *ahd, struct scb *scb, int op)
{
if (scb->sg_count == 0)
return;
ahd_dmamap_sync(ahd, ahd->scb_data.sg_dmat,
scb->sg_map->dmamap,
/*offset*/scb->sg_list_busaddr - ahd_sg_size(ahd),
/*len*/ahd_sg_size(ahd) * scb->sg_count, op);
}
static void
ahd_sync_sense(struct ahd_softc *ahd, struct scb *scb, int op)
{
ahd_dmamap_sync(ahd, ahd->scb_data.sense_dmat,
scb->sense_map->dmamap,
/*offset*/scb->sense_busaddr,
/*len*/AHD_SENSE_BUFSIZE, op);
}
#ifdef AHD_TARGET_MODE
static uint32_t
ahd_targetcmd_offset(struct ahd_softc *ahd, u_int index)
{
return (((uint8_t *)&ahd->targetcmds[index])
- (uint8_t *)ahd->qoutfifo);
}
#endif
/*********************** Miscellaneous Support Functions ***********************/
/*
* Return pointers to the transfer negotiation information
* for the specified our_id/remote_id pair.
*/
struct ahd_initiator_tinfo *
ahd_fetch_transinfo(struct ahd_softc *ahd, char channel, u_int our_id,
u_int remote_id, struct ahd_tmode_tstate **tstate)
{
/*
* Transfer data structures are stored from the perspective
* of the target role. Since the parameters for a connection
* in the initiator role to a given target are the same as
* when the roles are reversed, we pretend we are the target.
*/
if (channel == 'B')
our_id += 8;
*tstate = ahd->enabled_targets[our_id];
return (&(*tstate)->transinfo[remote_id]);
}
uint16_t
ahd_inw(struct ahd_softc *ahd, u_int port)
{
/*
* Read high byte first as some registers increment
* or have other side effects when the low byte is
* read.
*/
uint16_t r = ahd_inb(ahd, port+1) << 8;
return r | ahd_inb(ahd, port);
}
void
ahd_outw(struct ahd_softc *ahd, u_int port, u_int value)
{
/*
* Write low byte first to accommodate registers
* such as PRGMCNT where the order maters.
*/
ahd_outb(ahd, port, value & 0xFF);
ahd_outb(ahd, port+1, (value >> 8) & 0xFF);
}
uint32_t
ahd_inl(struct ahd_softc *ahd, u_int port)
{
return ((ahd_inb(ahd, port))
| (ahd_inb(ahd, port+1) << 8)
| (ahd_inb(ahd, port+2) << 16)
| (ahd_inb(ahd, port+3) << 24));
}
void
ahd_outl(struct ahd_softc *ahd, u_int port, uint32_t value)
{
ahd_outb(ahd, port, (value) & 0xFF);
ahd_outb(ahd, port+1, ((value) >> 8) & 0xFF);
ahd_outb(ahd, port+2, ((value) >> 16) & 0xFF);
ahd_outb(ahd, port+3, ((value) >> 24) & 0xFF);
}
uint64_t
ahd_inq(struct ahd_softc *ahd, u_int port)
{
return ((ahd_inb(ahd, port))
| (ahd_inb(ahd, port+1) << 8)
| (ahd_inb(ahd, port+2) << 16)
| (ahd_inb(ahd, port+3) << 24)
| (((uint64_t)ahd_inb(ahd, port+4)) << 32)
| (((uint64_t)ahd_inb(ahd, port+5)) << 40)
| (((uint64_t)ahd_inb(ahd, port+6)) << 48)
| (((uint64_t)ahd_inb(ahd, port+7)) << 56));
}
void
ahd_outq(struct ahd_softc *ahd, u_int port, uint64_t value)
{
ahd_outb(ahd, port, value & 0xFF);
ahd_outb(ahd, port+1, (value >> 8) & 0xFF);
ahd_outb(ahd, port+2, (value >> 16) & 0xFF);
ahd_outb(ahd, port+3, (value >> 24) & 0xFF);
ahd_outb(ahd, port+4, (value >> 32) & 0xFF);
ahd_outb(ahd, port+5, (value >> 40) & 0xFF);
ahd_outb(ahd, port+6, (value >> 48) & 0xFF);
ahd_outb(ahd, port+7, (value >> 56) & 0xFF);
}
u_int
ahd_get_scbptr(struct ahd_softc *ahd)
{
AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
return (ahd_inb(ahd, SCBPTR) | (ahd_inb(ahd, SCBPTR + 1) << 8));
}
void
ahd_set_scbptr(struct ahd_softc *ahd, u_int scbptr)
{
AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
ahd_outb(ahd, SCBPTR, scbptr & 0xFF);
ahd_outb(ahd, SCBPTR+1, (scbptr >> 8) & 0xFF);
}
#if 0 /* unused */
static u_int
ahd_get_hnscb_qoff(struct ahd_softc *ahd)
{
return (ahd_inw_atomic(ahd, HNSCB_QOFF));
}
#endif
static void
ahd_set_hnscb_qoff(struct ahd_softc *ahd, u_int value)
{
ahd_outw_atomic(ahd, HNSCB_QOFF, value);
}
#if 0 /* unused */
static u_int
ahd_get_hescb_qoff(struct ahd_softc *ahd)
{
return (ahd_inb(ahd, HESCB_QOFF));
}
#endif
static void
ahd_set_hescb_qoff(struct ahd_softc *ahd, u_int value)
{
ahd_outb(ahd, HESCB_QOFF, value);
}
static u_int
ahd_get_snscb_qoff(struct ahd_softc *ahd)
{
u_int oldvalue;
AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
oldvalue = ahd_inw(ahd, SNSCB_QOFF);
ahd_outw(ahd, SNSCB_QOFF, oldvalue);
return (oldvalue);
}
static void
ahd_set_snscb_qoff(struct ahd_softc *ahd, u_int value)
{
AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
ahd_outw(ahd, SNSCB_QOFF, value);
}
#if 0 /* unused */
static u_int
ahd_get_sescb_qoff(struct ahd_softc *ahd)
{
AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
return (ahd_inb(ahd, SESCB_QOFF));
}
#endif
static void
ahd_set_sescb_qoff(struct ahd_softc *ahd, u_int value)
{
AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
ahd_outb(ahd, SESCB_QOFF, value);
}
#if 0 /* unused */
static u_int
ahd_get_sdscb_qoff(struct ahd_softc *ahd)
{
AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
return (ahd_inb(ahd, SDSCB_QOFF) | (ahd_inb(ahd, SDSCB_QOFF + 1) << 8));
}
#endif
static void
ahd_set_sdscb_qoff(struct ahd_softc *ahd, u_int value)
{
AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
ahd_outb(ahd, SDSCB_QOFF, value & 0xFF);
ahd_outb(ahd, SDSCB_QOFF+1, (value >> 8) & 0xFF);
}
u_int
ahd_inb_scbram(struct ahd_softc *ahd, u_int offset)
{
u_int value;
/*
* Workaround PCI-X Rev A. hardware bug.
* After a host read of SCB memory, the chip
* may become confused into thinking prefetch
* was required. This starts the discard timer
* running and can cause an unexpected discard
* timer interrupt. The work around is to read
* a normal register prior to the exhaustion of
* the discard timer. The mode pointer register
* has no side effects and so serves well for
* this purpose.
*
* Razor #528
*/
value = ahd_inb(ahd, offset);
if ((ahd->bugs & AHD_PCIX_SCBRAM_RD_BUG) != 0)
ahd_inb(ahd, MODE_PTR);
return (value);
}
u_int
ahd_inw_scbram(struct ahd_softc *ahd, u_int offset)
{
return (ahd_inb_scbram(ahd, offset)
| (ahd_inb_scbram(ahd, offset+1) << 8));
}
static uint32_t
ahd_inl_scbram(struct ahd_softc *ahd, u_int offset)
{
return (ahd_inw_scbram(ahd, offset)
| (ahd_inw_scbram(ahd, offset+2) << 16));
}
static uint64_t
ahd_inq_scbram(struct ahd_softc *ahd, u_int offset)
{
return (ahd_inl_scbram(ahd, offset)
| ((uint64_t)ahd_inl_scbram(ahd, offset+4)) << 32);
}
struct scb *
ahd_lookup_scb(struct ahd_softc *ahd, u_int tag)
{
struct scb* scb;
if (tag >= AHD_SCB_MAX)
return (NULL);
scb = ahd->scb_data.scbindex[tag];
if (scb != NULL)
ahd_sync_scb(ahd, scb,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
return (scb);
}
static void
ahd_swap_with_next_hscb(struct ahd_softc *ahd, struct scb *scb)
{
struct hardware_scb *q_hscb;
struct map_node *q_hscb_map;
uint32_t saved_hscb_busaddr;
/*
* Our queuing method is a bit tricky. The card
* knows in advance which HSCB (by address) to download,
* and we can't disappoint it. To achieve this, the next
* HSCB to download is saved off in ahd->next_queued_hscb.
* When we are called to queue "an arbitrary scb",
* we copy the contents of the incoming HSCB to the one
* the sequencer knows about, swap HSCB pointers and
* finally assign the SCB to the tag indexed location
* in the scb_array. This makes sure that we can still
* locate the correct SCB by SCB_TAG.
*/
q_hscb = ahd->next_queued_hscb;
q_hscb_map = ahd->next_queued_hscb_map;
saved_hscb_busaddr = q_hscb->hscb_busaddr;
memcpy(q_hscb, scb->hscb, sizeof(*scb->hscb));
q_hscb->hscb_busaddr = saved_hscb_busaddr;
q_hscb->next_hscb_busaddr = scb->hscb->hscb_busaddr;
/* Now swap HSCB pointers. */
ahd->next_queued_hscb = scb->hscb;
ahd->next_queued_hscb_map = scb->hscb_map;
scb->hscb = q_hscb;
scb->hscb_map = q_hscb_map;
/* Now define the mapping from tag to SCB in the scbindex */
ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
}
/*
* Tell the sequencer about a new transaction to execute.
*/
void
ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb)
{
ahd_swap_with_next_hscb(ahd, scb);
if (SCBID_IS_NULL(SCB_GET_TAG(scb)))
panic("Attempt to queue invalid SCB tag %x\n",
SCB_GET_TAG(scb));
/*
* Keep a history of SCBs we've downloaded in the qinfifo.
*/
ahd->qinfifo[AHD_QIN_WRAP(ahd->qinfifonext)] = SCB_GET_TAG(scb);
ahd->qinfifonext++;
if (scb->sg_count != 0)
ahd_setup_data_scb(ahd, scb);
else
ahd_setup_noxfer_scb(ahd, scb);
ahd_setup_scb_common(ahd, scb);
/*
* Make sure our data is consistent from the
* perspective of the adapter.
*/
ahd_sync_scb(ahd, scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_QUEUE) != 0) {
uint64_t host_dataptr;
host_dataptr = ahd_le64toh(scb->hscb->dataptr);
printk("%s: Queueing SCB %d:0x%x bus addr 0x%x - 0x%x%x/0x%x\n",
ahd_name(ahd),
SCB_GET_TAG(scb), scb->hscb->scsiid,
ahd_le32toh(scb->hscb->hscb_busaddr),
(u_int)((host_dataptr >> 32) & 0xFFFFFFFF),
(u_int)(host_dataptr & 0xFFFFFFFF),
ahd_le32toh(scb->hscb->datacnt));
}
#endif
/* Tell the adapter about the newly queued SCB */
ahd_set_hnscb_qoff(ahd, ahd->qinfifonext);
}
/************************** Interrupt Processing ******************************/
static void
ahd_sync_qoutfifo(struct ahd_softc *ahd, int op)
{
ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
/*offset*/0,
/*len*/AHD_SCB_MAX * sizeof(struct ahd_completion), op);
}
static void
ahd_sync_tqinfifo(struct ahd_softc *ahd, int op)
{
#ifdef AHD_TARGET_MODE
if ((ahd->flags & AHD_TARGETROLE) != 0) {
ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
ahd->shared_data_map.dmamap,
ahd_targetcmd_offset(ahd, 0),
sizeof(struct target_cmd) * AHD_TMODE_CMDS,
op);
}
#endif
}
/*
* See if the firmware has posted any completed commands
* into our in-core command complete fifos.
*/
#define AHD_RUN_QOUTFIFO 0x1
#define AHD_RUN_TQINFIFO 0x2
static u_int
ahd_check_cmdcmpltqueues(struct ahd_softc *ahd)
{
u_int retval;
retval = 0;
ahd_dmamap_sync(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
/*offset*/ahd->qoutfifonext * sizeof(*ahd->qoutfifo),
/*len*/sizeof(*ahd->qoutfifo), BUS_DMASYNC_POSTREAD);
if (ahd->qoutfifo[ahd->qoutfifonext].valid_tag
== ahd->qoutfifonext_valid_tag)
retval |= AHD_RUN_QOUTFIFO;
#ifdef AHD_TARGET_MODE
if ((ahd->flags & AHD_TARGETROLE) != 0
&& (ahd->flags & AHD_TQINFIFO_BLOCKED) == 0) {
ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
ahd->shared_data_map.dmamap,
ahd_targetcmd_offset(ahd, ahd->tqinfifofnext),
/*len*/sizeof(struct target_cmd),
BUS_DMASYNC_POSTREAD);
if (ahd->targetcmds[ahd->tqinfifonext].cmd_valid != 0)
retval |= AHD_RUN_TQINFIFO;
}
#endif
return (retval);
}
/*
* Catch an interrupt from the adapter
*/
int
ahd_intr(struct ahd_softc *ahd)
{
u_int intstat;
if ((ahd->pause & INTEN) == 0) {
/*
* Our interrupt is not enabled on the chip
* and may be disabled for re-entrancy reasons,
* so just return. This is likely just a shared
* interrupt.
*/
return (0);
}
/*
* Instead of directly reading the interrupt status register,
* infer the cause of the interrupt by checking our in-core
* completion queues. This avoids a costly PCI bus read in
* most cases.
*/
if ((ahd->flags & AHD_ALL_INTERRUPTS) == 0
&& (ahd_check_cmdcmpltqueues(ahd) != 0))
intstat = CMDCMPLT;
else
intstat = ahd_inb(ahd, INTSTAT);
if ((intstat & INT_PEND) == 0)
return (0);
if (intstat & CMDCMPLT) {
ahd_outb(ahd, CLRINT, CLRCMDINT);
/*
* Ensure that the chip sees that we've cleared
* this interrupt before we walk the output fifo.
* Otherwise, we may, due to posted bus writes,
* clear the interrupt after we finish the scan,
* and after the sequencer has added new entries
* and asserted the interrupt again.
*/
if ((ahd->bugs & AHD_INTCOLLISION_BUG) != 0) {
if (ahd_is_paused(ahd)) {
/*
* Potentially lost SEQINT.
* If SEQINTCODE is non-zero,
* simulate the SEQINT.
*/
if (ahd_inb(ahd, SEQINTCODE) != NO_SEQINT)
intstat |= SEQINT;
}
} else {
ahd_flush_device_writes(ahd);
}
ahd_run_qoutfifo(ahd);
ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket]++;
ahd->cmdcmplt_total++;
#ifdef AHD_TARGET_MODE
if ((ahd->flags & AHD_TARGETROLE) != 0)
ahd_run_tqinfifo(ahd, /*paused*/FALSE);
#endif
}
/*
* Handle statuses that may invalidate our cached
* copy of INTSTAT separately.
*/
if (intstat == 0xFF && (ahd->features & AHD_REMOVABLE) != 0) {
/* Hot eject. Do nothing */
} else if (intstat & HWERRINT) {
ahd_handle_hwerrint(ahd);
} else if ((intstat & (PCIINT|SPLTINT)) != 0) {
ahd->bus_intr(ahd);
} else {
if ((intstat & SEQINT) != 0)
ahd_handle_seqint(ahd, intstat);
if ((intstat & SCSIINT) != 0)
ahd_handle_scsiint(ahd, intstat);
}
return (1);
}
/******************************** Private Inlines *****************************/
static inline void
ahd_assert_atn(struct ahd_softc *ahd)
{
ahd_outb(ahd, SCSISIGO, ATNO);
}
/*
* Determine if the current connection has a packetized
* agreement. This does not necessarily mean that we
* are currently in a packetized transfer. We could
* just as easily be sending or receiving a message.
*/
static int
ahd_currently_packetized(struct ahd_softc *ahd)
{
ahd_mode_state saved_modes;
int packetized;
saved_modes = ahd_save_modes(ahd);
if ((ahd->bugs & AHD_PKTIZED_STATUS_BUG) != 0) {
/*
* The packetized bit refers to the last
* connection, not the current one. Check
* for non-zero LQISTATE instead.
*/
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
packetized = ahd_inb(ahd, LQISTATE) != 0;
} else {
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
packetized = ahd_inb(ahd, LQISTAT2) & PACKETIZED;
}
ahd_restore_modes(ahd, saved_modes);
return (packetized);
}
static inline int
ahd_set_active_fifo(struct ahd_softc *ahd)
{
u_int active_fifo;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
active_fifo = ahd_inb(ahd, DFFSTAT) & CURRFIFO;
switch (active_fifo) {
case 0:
case 1:
ahd_set_modes(ahd, active_fifo, active_fifo);
return (1);
default:
return (0);
}
}
static inline void
ahd_unbusy_tcl(struct ahd_softc *ahd, u_int tcl)
{
ahd_busy_tcl(ahd, tcl, SCB_LIST_NULL);
}
/*
* Determine whether the sequencer reported a residual
* for this SCB/transaction.
*/
static inline void
ahd_update_residual(struct ahd_softc *ahd, struct scb *scb)
{
uint32_t sgptr;
sgptr = ahd_le32toh(scb->hscb->sgptr);
if ((sgptr & SG_STATUS_VALID) != 0)
ahd_calc_residual(ahd, scb);
}
static inline void
ahd_complete_scb(struct ahd_softc *ahd, struct scb *scb)
{
uint32_t sgptr;
sgptr = ahd_le32toh(scb->hscb->sgptr);
if ((sgptr & SG_STATUS_VALID) != 0)
ahd_handle_scb_status(ahd, scb);
else
ahd_done(ahd, scb);
}
/************************* Sequencer Execution Control ************************/
/*
* Restart the sequencer program from address zero
*/
static void
ahd_restart(struct ahd_softc *ahd)
{
ahd_pause(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
/* No more pending messages */
ahd_clear_msg_state(ahd);
ahd_outb(ahd, SCSISIGO, 0); /* De-assert BSY */
ahd_outb(ahd, MSG_OUT, NOP); /* No message to send */
ahd_outb(ahd, SXFRCTL1, ahd_inb(ahd, SXFRCTL1) & ~BITBUCKET);
ahd_outb(ahd, SEQINTCTL, 0);
ahd_outb(ahd, LASTPHASE, P_BUSFREE);
ahd_outb(ahd, SEQ_FLAGS, 0);
ahd_outb(ahd, SAVED_SCSIID, 0xFF);
ahd_outb(ahd, SAVED_LUN, 0xFF);
/*
* Ensure that the sequencer's idea of TQINPOS
* matches our own. The sequencer increments TQINPOS
* only after it sees a DMA complete and a reset could
* occur before the increment leaving the kernel to believe
* the command arrived but the sequencer to not.
*/
ahd_outb(ahd, TQINPOS, ahd->tqinfifonext);
/* Always allow reselection */
ahd_outb(ahd, SCSISEQ1,
ahd_inb(ahd, SCSISEQ_TEMPLATE) & (ENSELI|ENRSELI|ENAUTOATNP));
ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN);
/*
* Clear any pending sequencer interrupt. It is no
* longer relevant since we're resetting the Program
* Counter.
*/
ahd_outb(ahd, CLRINT, CLRSEQINT);
ahd_outb(ahd, SEQCTL0, FASTMODE|SEQRESET);
ahd_unpause(ahd);
}
static void
ahd_clear_fifo(struct ahd_softc *ahd, u_int fifo)
{
ahd_mode_state saved_modes;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_FIFOS) != 0)
printk("%s: Clearing FIFO %d\n", ahd_name(ahd), fifo);
#endif
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, fifo, fifo);
ahd_outb(ahd, DFFSXFRCTL, RSTCHN|CLRSHCNT);
if ((ahd_inb(ahd, SG_STATE) & FETCH_INPROG) != 0)
ahd_outb(ahd, CCSGCTL, CCSGRESET);
ahd_outb(ahd, LONGJMP_ADDR + 1, INVALID_ADDR);
ahd_outb(ahd, SG_STATE, 0);
ahd_restore_modes(ahd, saved_modes);
}
/************************* Input/Output Queues ********************************/
/*
* Flush and completed commands that are sitting in the command
* complete queues down on the chip but have yet to be dma'ed back up.
*/
static void
ahd_flush_qoutfifo(struct ahd_softc *ahd)
{
struct scb *scb;
ahd_mode_state saved_modes;
u_int saved_scbptr;
u_int ccscbctl;
u_int scbid;
u_int next_scbid;
saved_modes = ahd_save_modes(ahd);
/*
* Flush the good status FIFO for completed packetized commands.
*/
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
saved_scbptr = ahd_get_scbptr(ahd);
while ((ahd_inb(ahd, LQISTAT2) & LQIGSAVAIL) != 0) {
u_int fifo_mode;
u_int i;
scbid = ahd_inw(ahd, GSFIFO);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("%s: Warning - GSFIFO SCB %d invalid\n",
ahd_name(ahd), scbid);
continue;
}
/*
* Determine if this transaction is still active in
* any FIFO. If it is, we must flush that FIFO to
* the host before completing the command.
*/
fifo_mode = 0;
rescan_fifos:
for (i = 0; i < 2; i++) {
/* Toggle to the other mode. */
fifo_mode ^= 1;
ahd_set_modes(ahd, fifo_mode, fifo_mode);
if (ahd_scb_active_in_fifo(ahd, scb) == 0)
continue;
ahd_run_data_fifo(ahd, scb);
/*
* Running this FIFO may cause a CFG4DATA for
* this same transaction to assert in the other
* FIFO or a new snapshot SAVEPTRS interrupt
* in this FIFO. Even running a FIFO may not
* clear the transaction if we are still waiting
* for data to drain to the host. We must loop
* until the transaction is not active in either
* FIFO just to be sure. Reset our loop counter
* so we will visit both FIFOs again before
* declaring this transaction finished. We
* also delay a bit so that status has a chance
* to change before we look at this FIFO again.
*/
ahd_delay(200);
goto rescan_fifos;
}
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd_set_scbptr(ahd, scbid);
if ((ahd_inb_scbram(ahd, SCB_SGPTR) & SG_LIST_NULL) == 0
&& ((ahd_inb_scbram(ahd, SCB_SGPTR) & SG_FULL_RESID) != 0
|| (ahd_inb_scbram(ahd, SCB_RESIDUAL_SGPTR)
& SG_LIST_NULL) != 0)) {
u_int comp_head;
/*
* The transfer completed with a residual.
* Place this SCB on the complete DMA list
* so that we update our in-core copy of the
* SCB before completing the command.
*/
ahd_outb(ahd, SCB_SCSI_STATUS, 0);
ahd_outb(ahd, SCB_SGPTR,
ahd_inb_scbram(ahd, SCB_SGPTR)
| SG_STATUS_VALID);
ahd_outw(ahd, SCB_TAG, scbid);
ahd_outw(ahd, SCB_NEXT_COMPLETE, SCB_LIST_NULL);
comp_head = ahd_inw(ahd, COMPLETE_DMA_SCB_HEAD);
if (SCBID_IS_NULL(comp_head)) {
ahd_outw(ahd, COMPLETE_DMA_SCB_HEAD, scbid);
ahd_outw(ahd, COMPLETE_DMA_SCB_TAIL, scbid);
} else {
u_int tail;
tail = ahd_inw(ahd, COMPLETE_DMA_SCB_TAIL);
ahd_set_scbptr(ahd, tail);
ahd_outw(ahd, SCB_NEXT_COMPLETE, scbid);
ahd_outw(ahd, COMPLETE_DMA_SCB_TAIL, scbid);
ahd_set_scbptr(ahd, scbid);
}
} else
ahd_complete_scb(ahd, scb);
}
ahd_set_scbptr(ahd, saved_scbptr);
/*
* Setup for command channel portion of flush.
*/
ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN);
/*
* Wait for any inprogress DMA to complete and clear DMA state
* if this is for an SCB in the qinfifo.
*/
while (((ccscbctl = ahd_inb(ahd, CCSCBCTL)) & (CCARREN|CCSCBEN)) != 0) {
if ((ccscbctl & (CCSCBDIR|CCARREN)) == (CCSCBDIR|CCARREN)) {
if ((ccscbctl & ARRDONE) != 0)
break;
} else if ((ccscbctl & CCSCBDONE) != 0)
break;
ahd_delay(200);
}
/*
* We leave the sequencer to cleanup in the case of DMA's to
* update the qoutfifo. In all other cases (DMA's to the
* chip or a push of an SCB from the COMPLETE_DMA_SCB list),
* we disable the DMA engine so that the sequencer will not
* attempt to handle the DMA completion.
*/
if ((ccscbctl & CCSCBDIR) != 0 || (ccscbctl & ARRDONE) != 0)
ahd_outb(ahd, CCSCBCTL, ccscbctl & ~(CCARREN|CCSCBEN));
/*
* Complete any SCBs that just finished
* being DMA'ed into the qoutfifo.
*/
ahd_run_qoutfifo(ahd);
saved_scbptr = ahd_get_scbptr(ahd);
/*
* Manually update/complete any completed SCBs that are waiting to be
* DMA'ed back up to the host.
*/
scbid = ahd_inw(ahd, COMPLETE_DMA_SCB_HEAD);
while (!SCBID_IS_NULL(scbid)) {
uint8_t *hscb_ptr;
u_int i;
ahd_set_scbptr(ahd, scbid);
next_scbid = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("%s: Warning - DMA-up and complete "
"SCB %d invalid\n", ahd_name(ahd), scbid);
continue;
}
hscb_ptr = (uint8_t *)scb->hscb;
for (i = 0; i < sizeof(struct hardware_scb); i++)
*hscb_ptr++ = ahd_inb_scbram(ahd, SCB_BASE + i);
ahd_complete_scb(ahd, scb);
scbid = next_scbid;
}
ahd_outw(ahd, COMPLETE_DMA_SCB_HEAD, SCB_LIST_NULL);
ahd_outw(ahd, COMPLETE_DMA_SCB_TAIL, SCB_LIST_NULL);
scbid = ahd_inw(ahd, COMPLETE_ON_QFREEZE_HEAD);
while (!SCBID_IS_NULL(scbid)) {
ahd_set_scbptr(ahd, scbid);
next_scbid = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("%s: Warning - Complete Qfrz SCB %d invalid\n",
ahd_name(ahd), scbid);
continue;
}
ahd_complete_scb(ahd, scb);
scbid = next_scbid;
}
ahd_outw(ahd, COMPLETE_ON_QFREEZE_HEAD, SCB_LIST_NULL);
scbid = ahd_inw(ahd, COMPLETE_SCB_HEAD);
while (!SCBID_IS_NULL(scbid)) {
ahd_set_scbptr(ahd, scbid);
next_scbid = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("%s: Warning - Complete SCB %d invalid\n",
ahd_name(ahd), scbid);
continue;
}
ahd_complete_scb(ahd, scb);
scbid = next_scbid;
}
ahd_outw(ahd, COMPLETE_SCB_HEAD, SCB_LIST_NULL);
/*
* Restore state.
*/
ahd_set_scbptr(ahd, saved_scbptr);
ahd_restore_modes(ahd, saved_modes);
ahd->flags |= AHD_UPDATE_PEND_CMDS;
}
/*
* Determine if an SCB for a packetized transaction
* is active in a FIFO.
*/
static int
ahd_scb_active_in_fifo(struct ahd_softc *ahd, struct scb *scb)
{
/*
* The FIFO is only active for our transaction if
* the SCBPTR matches the SCB's ID and the firmware
* has installed a handler for the FIFO or we have
* a pending SAVEPTRS or CFG4DATA interrupt.
*/
if (ahd_get_scbptr(ahd) != SCB_GET_TAG(scb)
|| ((ahd_inb(ahd, LONGJMP_ADDR+1) & INVALID_ADDR) != 0
&& (ahd_inb(ahd, SEQINTSRC) & (CFG4DATA|SAVEPTRS)) == 0))
return (0);
return (1);
}
/*
* Run a data fifo to completion for a transaction we know
* has completed across the SCSI bus (good status has been
* received). We are already set to the correct FIFO mode
* on entry to this routine.
*
* This function attempts to operate exactly as the firmware
* would when running this FIFO. Care must be taken to update
* this routine any time the firmware's FIFO algorithm is
* changed.
*/
static void
ahd_run_data_fifo(struct ahd_softc *ahd, struct scb *scb)
{
u_int seqintsrc;
seqintsrc = ahd_inb(ahd, SEQINTSRC);
if ((seqintsrc & CFG4DATA) != 0) {
uint32_t datacnt;
uint32_t sgptr;
/*
* Clear full residual flag.
*/
sgptr = ahd_inl_scbram(ahd, SCB_SGPTR) & ~SG_FULL_RESID;
ahd_outb(ahd, SCB_SGPTR, sgptr);
/*
* Load datacnt and address.
*/
datacnt = ahd_inl_scbram(ahd, SCB_DATACNT);
if ((datacnt & AHD_DMA_LAST_SEG) != 0) {
sgptr |= LAST_SEG;
ahd_outb(ahd, SG_STATE, 0);
} else
ahd_outb(ahd, SG_STATE, LOADING_NEEDED);
ahd_outq(ahd, HADDR, ahd_inq_scbram(ahd, SCB_DATAPTR));
ahd_outl(ahd, HCNT, datacnt & AHD_SG_LEN_MASK);
ahd_outb(ahd, SG_CACHE_PRE, sgptr);
ahd_outb(ahd, DFCNTRL, PRELOADEN|SCSIEN|HDMAEN);
/*
* Initialize Residual Fields.
*/
ahd_outb(ahd, SCB_RESIDUAL_DATACNT+3, datacnt >> 24);
ahd_outl(ahd, SCB_RESIDUAL_SGPTR, sgptr & SG_PTR_MASK);
/*
* Mark the SCB as having a FIFO in use.
*/
ahd_outb(ahd, SCB_FIFO_USE_COUNT,
ahd_inb_scbram(ahd, SCB_FIFO_USE_COUNT) + 1);
/*
* Install a "fake" handler for this FIFO.
*/
ahd_outw(ahd, LONGJMP_ADDR, 0);
/*
* Notify the hardware that we have satisfied
* this sequencer interrupt.
*/
ahd_outb(ahd, CLRSEQINTSRC, CLRCFG4DATA);
} else if ((seqintsrc & SAVEPTRS) != 0) {
uint32_t sgptr;
uint32_t resid;
if ((ahd_inb(ahd, LONGJMP_ADDR+1)&INVALID_ADDR) != 0) {
/*
* Snapshot Save Pointers. All that
* is necessary to clear the snapshot
* is a CLRCHN.
*/
goto clrchn;
}
/*
* Disable S/G fetch so the DMA engine
* is available to future users.
*/
if ((ahd_inb(ahd, SG_STATE) & FETCH_INPROG) != 0)
ahd_outb(ahd, CCSGCTL, 0);
ahd_outb(ahd, SG_STATE, 0);
/*
* Flush the data FIFO. Strickly only
* necessary for Rev A parts.
*/
ahd_outb(ahd, DFCNTRL, ahd_inb(ahd, DFCNTRL) | FIFOFLUSH);
/*
* Calculate residual.
*/
sgptr = ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR);
resid = ahd_inl(ahd, SHCNT);
resid |= ahd_inb_scbram(ahd, SCB_RESIDUAL_DATACNT+3) << 24;
ahd_outl(ahd, SCB_RESIDUAL_DATACNT, resid);
if ((ahd_inb(ahd, SG_CACHE_SHADOW) & LAST_SEG) == 0) {
/*
* Must back up to the correct S/G element.
* Typically this just means resetting our
* low byte to the offset in the SG_CACHE,
* but if we wrapped, we have to correct
* the other bytes of the sgptr too.
*/
if ((ahd_inb(ahd, SG_CACHE_SHADOW) & 0x80) != 0
&& (sgptr & 0x80) == 0)
sgptr -= 0x100;
sgptr &= ~0xFF;
sgptr |= ahd_inb(ahd, SG_CACHE_SHADOW)
& SG_ADDR_MASK;
ahd_outl(ahd, SCB_RESIDUAL_SGPTR, sgptr);
ahd_outb(ahd, SCB_RESIDUAL_DATACNT + 3, 0);
} else if ((resid & AHD_SG_LEN_MASK) == 0) {
ahd_outb(ahd, SCB_RESIDUAL_SGPTR,
sgptr | SG_LIST_NULL);
}
/*
* Save Pointers.
*/
ahd_outq(ahd, SCB_DATAPTR, ahd_inq(ahd, SHADDR));
ahd_outl(ahd, SCB_DATACNT, resid);
ahd_outl(ahd, SCB_SGPTR, sgptr);
ahd_outb(ahd, CLRSEQINTSRC, CLRSAVEPTRS);
ahd_outb(ahd, SEQIMODE,
ahd_inb(ahd, SEQIMODE) | ENSAVEPTRS);
/*
* If the data is to the SCSI bus, we are
* done, otherwise wait for FIFOEMP.
*/
if ((ahd_inb(ahd, DFCNTRL) & DIRECTION) != 0)
goto clrchn;
} else if ((ahd_inb(ahd, SG_STATE) & LOADING_NEEDED) != 0) {
uint32_t sgptr;
uint64_t data_addr;
uint32_t data_len;
u_int dfcntrl;
/*
* Disable S/G fetch so the DMA engine
* is available to future users. We won't
* be using the DMA engine to load segments.
*/
if ((ahd_inb(ahd, SG_STATE) & FETCH_INPROG) != 0) {
ahd_outb(ahd, CCSGCTL, 0);
ahd_outb(ahd, SG_STATE, LOADING_NEEDED);
}
/*
* Wait for the DMA engine to notice that the
* host transfer is enabled and that there is
* space in the S/G FIFO for new segments before
* loading more segments.
*/
if ((ahd_inb(ahd, DFSTATUS) & PRELOAD_AVAIL) != 0
&& (ahd_inb(ahd, DFCNTRL) & HDMAENACK) != 0) {
/*
* Determine the offset of the next S/G
* element to load.
*/
sgptr = ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR);
sgptr &= SG_PTR_MASK;
if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
struct ahd_dma64_seg *sg;
sg = ahd_sg_bus_to_virt(ahd, scb, sgptr);
data_addr = sg->addr;
data_len = sg->len;
sgptr += sizeof(*sg);
} else {
struct ahd_dma_seg *sg;
sg = ahd_sg_bus_to_virt(ahd, scb, sgptr);
data_addr = sg->len & AHD_SG_HIGH_ADDR_MASK;
data_addr <<= 8;
data_addr |= sg->addr;
data_len = sg->len;
sgptr += sizeof(*sg);
}
/*
* Update residual information.
*/
ahd_outb(ahd, SCB_RESIDUAL_DATACNT+3, data_len >> 24);
ahd_outl(ahd, SCB_RESIDUAL_SGPTR, sgptr);
/*
* Load the S/G.
*/
if (data_len & AHD_DMA_LAST_SEG) {
sgptr |= LAST_SEG;
ahd_outb(ahd, SG_STATE, 0);
}
ahd_outq(ahd, HADDR, data_addr);
ahd_outl(ahd, HCNT, data_len & AHD_SG_LEN_MASK);
ahd_outb(ahd, SG_CACHE_PRE, sgptr & 0xFF);
/*
* Advertise the segment to the hardware.
*/
dfcntrl = ahd_inb(ahd, DFCNTRL)|PRELOADEN|HDMAEN;
if ((ahd->features & AHD_NEW_DFCNTRL_OPTS) != 0) {
/*
* Use SCSIENWRDIS so that SCSIEN
* is never modified by this
* operation.
*/
dfcntrl |= SCSIENWRDIS;
}
ahd_outb(ahd, DFCNTRL, dfcntrl);
}
} else if ((ahd_inb(ahd, SG_CACHE_SHADOW) & LAST_SEG_DONE) != 0) {
/*
* Transfer completed to the end of SG list
* and has flushed to the host.
*/
ahd_outb(ahd, SCB_SGPTR,
ahd_inb_scbram(ahd, SCB_SGPTR) | SG_LIST_NULL);
goto clrchn;
} else if ((ahd_inb(ahd, DFSTATUS) & FIFOEMP) != 0) {
clrchn:
/*
* Clear any handler for this FIFO, decrement
* the FIFO use count for the SCB, and release
* the FIFO.
*/
ahd_outb(ahd, LONGJMP_ADDR + 1, INVALID_ADDR);
ahd_outb(ahd, SCB_FIFO_USE_COUNT,
ahd_inb_scbram(ahd, SCB_FIFO_USE_COUNT) - 1);
ahd_outb(ahd, DFFSXFRCTL, CLRCHN);
}
}
/*
* Look for entries in the QoutFIFO that have completed.
* The valid_tag completion field indicates the validity
* of the entry - the valid value toggles each time through
* the queue. We use the sg_status field in the completion
* entry to avoid referencing the hscb if the completion
* occurred with no errors and no residual. sg_status is
* a copy of the first byte (little endian) of the sgptr
* hscb field.
*/
static void
ahd_run_qoutfifo(struct ahd_softc *ahd)
{
struct ahd_completion *completion;
struct scb *scb;
u_int scb_index;
if ((ahd->flags & AHD_RUNNING_QOUTFIFO) != 0)
panic("ahd_run_qoutfifo recursion");
ahd->flags |= AHD_RUNNING_QOUTFIFO;
ahd_sync_qoutfifo(ahd, BUS_DMASYNC_POSTREAD);
for (;;) {
completion = &ahd->qoutfifo[ahd->qoutfifonext];
if (completion->valid_tag != ahd->qoutfifonext_valid_tag)
break;
scb_index = ahd_le16toh(completion->tag);
scb = ahd_lookup_scb(ahd, scb_index);
if (scb == NULL) {
printk("%s: WARNING no command for scb %d "
"(cmdcmplt)\nQOUTPOS = %d\n",
ahd_name(ahd), scb_index,
ahd->qoutfifonext);
ahd_dump_card_state(ahd);
} else if ((completion->sg_status & SG_STATUS_VALID) != 0) {
ahd_handle_scb_status(ahd, scb);
} else {
ahd_done(ahd, scb);
}
ahd->qoutfifonext = (ahd->qoutfifonext+1) & (AHD_QOUT_SIZE-1);
if (ahd->qoutfifonext == 0)
ahd->qoutfifonext_valid_tag ^= QOUTFIFO_ENTRY_VALID;
}
ahd->flags &= ~AHD_RUNNING_QOUTFIFO;
}
/************************* Interrupt Handling *********************************/
static void
ahd_handle_hwerrint(struct ahd_softc *ahd)
{
/*
* Some catastrophic hardware error has occurred.
* Print it for the user and disable the controller.
*/
int i;
int error;
error = ahd_inb(ahd, ERROR);
for (i = 0; i < num_errors; i++) {
if ((error & ahd_hard_errors[i].errno) != 0)
printk("%s: hwerrint, %s\n",
ahd_name(ahd), ahd_hard_errors[i].errmesg);
}
ahd_dump_card_state(ahd);
panic("BRKADRINT");
/* Tell everyone that this HBA is no longer available */
ahd_abort_scbs(ahd, CAM_TARGET_WILDCARD, ALL_CHANNELS,
CAM_LUN_WILDCARD, SCB_LIST_NULL, ROLE_UNKNOWN,
CAM_NO_HBA);
/* Tell the system that this controller has gone away. */
ahd_free(ahd);
}
#ifdef AHD_DEBUG
static void
ahd_dump_sglist(struct scb *scb)
{
int i;
if (scb->sg_count > 0) {
if ((scb->ahd_softc->flags & AHD_64BIT_ADDRESSING) != 0) {
struct ahd_dma64_seg *sg_list;
sg_list = (struct ahd_dma64_seg*)scb->sg_list;
for (i = 0; i < scb->sg_count; i++) {
uint64_t addr;
addr = ahd_le64toh(sg_list[i].addr);
printk("sg[%d] - Addr 0x%x%x : Length %d%s\n",
i,
(uint32_t)((addr >> 32) & 0xFFFFFFFF),
(uint32_t)(addr & 0xFFFFFFFF),
sg_list[i].len & AHD_SG_LEN_MASK,
(sg_list[i].len & AHD_DMA_LAST_SEG)
? " Last" : "");
}
} else {
struct ahd_dma_seg *sg_list;
sg_list = (struct ahd_dma_seg*)scb->sg_list;
for (i = 0; i < scb->sg_count; i++) {
uint32_t len;
len = ahd_le32toh(sg_list[i].len);
printk("sg[%d] - Addr 0x%x%x : Length %d%s\n",
i,
(len & AHD_SG_HIGH_ADDR_MASK) >> 24,
ahd_le32toh(sg_list[i].addr),
len & AHD_SG_LEN_MASK,
len & AHD_DMA_LAST_SEG ? " Last" : "");
}
}
}
}
#endif /* AHD_DEBUG */
static void
ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat)
{
u_int seqintcode;
/*
* Save the sequencer interrupt code and clear the SEQINT
* bit. We will unpause the sequencer, if appropriate,
* after servicing the request.
*/
seqintcode = ahd_inb(ahd, SEQINTCODE);
ahd_outb(ahd, CLRINT, CLRSEQINT);
if ((ahd->bugs & AHD_INTCOLLISION_BUG) != 0) {
/*
* Unpause the sequencer and let it clear
* SEQINT by writing NO_SEQINT to it. This
* will cause the sequencer to be paused again,
* which is the expected state of this routine.
*/
ahd_unpause(ahd);
while (!ahd_is_paused(ahd))
;
ahd_outb(ahd, CLRINT, CLRSEQINT);
}
ahd_update_modes(ahd);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0)
printk("%s: Handle Seqint Called for code %d\n",
ahd_name(ahd), seqintcode);
#endif
switch (seqintcode) {
case ENTERING_NONPACK:
{
struct scb *scb;
u_int scbid;
AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
/*
* Somehow need to know if this
* is from a selection or reselection.
* From that, we can determine target
* ID so we at least have an I_T nexus.
*/
} else {
ahd_outb(ahd, SAVED_SCSIID, scb->hscb->scsiid);
ahd_outb(ahd, SAVED_LUN, scb->hscb->lun);
ahd_outb(ahd, SEQ_FLAGS, 0x0);
}
if ((ahd_inb(ahd, LQISTAT2) & LQIPHASE_OUTPKT) != 0
&& (ahd_inb(ahd, SCSISIGO) & ATNO) != 0) {
/*
* Phase change after read stream with
* CRC error with P0 asserted on last
* packet.
*/
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0)
printk("%s: Assuming LQIPHASE_NLQ with "
"P0 assertion\n", ahd_name(ahd));
#endif
}
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0)
printk("%s: Entering NONPACK\n", ahd_name(ahd));
#endif
break;
}
case INVALID_SEQINT:
printk("%s: Invalid Sequencer interrupt occurred, "
"resetting channel.\n",
ahd_name(ahd));
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0)
ahd_dump_card_state(ahd);
#endif
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
break;
case STATUS_OVERRUN:
{
struct scb *scb;
u_int scbid;
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb != NULL)
ahd_print_path(ahd, scb);
else
printk("%s: ", ahd_name(ahd));
printk("SCB %d Packetized Status Overrun", scbid);
ahd_dump_card_state(ahd);
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
break;
}
case CFG4ISTAT_INTR:
{
struct scb *scb;
u_int scbid;
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
ahd_dump_card_state(ahd);
printk("CFG4ISTAT: Free SCB %d referenced", scbid);
panic("For safety");
}
ahd_outq(ahd, HADDR, scb->sense_busaddr);
ahd_outw(ahd, HCNT, AHD_SENSE_BUFSIZE);
ahd_outb(ahd, HCNT + 2, 0);
ahd_outb(ahd, SG_CACHE_PRE, SG_LAST_SEG);
ahd_outb(ahd, DFCNTRL, PRELOADEN|SCSIEN|HDMAEN);
break;
}
case ILLEGAL_PHASE:
{
u_int bus_phase;
bus_phase = ahd_inb(ahd, SCSISIGI) & PHASE_MASK;
printk("%s: ILLEGAL_PHASE 0x%x\n",
ahd_name(ahd), bus_phase);
switch (bus_phase) {
case P_DATAOUT:
case P_DATAIN:
case P_DATAOUT_DT:
case P_DATAIN_DT:
case P_MESGOUT:
case P_STATUS:
case P_MESGIN:
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
printk("%s: Issued Bus Reset.\n", ahd_name(ahd));
break;
case P_COMMAND:
{
struct ahd_devinfo devinfo;
struct scb *scb;
u_int scbid;
/*
* If a target takes us into the command phase
* assume that it has been externally reset and
* has thus lost our previous packetized negotiation
* agreement. Since we have not sent an identify
* message and may not have fully qualified the
* connection, we change our command to TUR, assert
* ATN and ABORT the task when we go to message in
* phase. The OSM will see the REQUEUE_REQUEST
* status and retry the command.
*/
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("Invalid phase with no valid SCB. "
"Resetting bus.\n");
ahd_reset_channel(ahd, 'A',
/*Initiate Reset*/TRUE);
break;
}
ahd_compile_devinfo(&devinfo, SCB_GET_OUR_ID(scb),
SCB_GET_TARGET(ahd, scb),
SCB_GET_LUN(scb),
SCB_GET_CHANNEL(ahd, scb),
ROLE_INITIATOR);
ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_ACTIVE, /*paused*/TRUE);
ahd_set_syncrate(ahd, &devinfo, /*period*/0,
/*offset*/0, /*ppr_options*/0,
AHD_TRANS_ACTIVE, /*paused*/TRUE);
/* Hand-craft TUR command */
ahd_outb(ahd, SCB_CDB_STORE, 0);
ahd_outb(ahd, SCB_CDB_STORE+1, 0);
ahd_outb(ahd, SCB_CDB_STORE+2, 0);
ahd_outb(ahd, SCB_CDB_STORE+3, 0);
ahd_outb(ahd, SCB_CDB_STORE+4, 0);
ahd_outb(ahd, SCB_CDB_STORE+5, 0);
ahd_outb(ahd, SCB_CDB_LEN, 6);
scb->hscb->control &= ~(TAG_ENB|SCB_TAG_TYPE);
scb->hscb->control |= MK_MESSAGE;
ahd_outb(ahd, SCB_CONTROL, scb->hscb->control);
ahd_outb(ahd, MSG_OUT, HOST_MSG);
ahd_outb(ahd, SAVED_SCSIID, scb->hscb->scsiid);
/*
* The lun is 0, regardless of the SCB's lun
* as we have not sent an identify message.
*/
ahd_outb(ahd, SAVED_LUN, 0);
ahd_outb(ahd, SEQ_FLAGS, 0);
ahd_assert_atn(ahd);
scb->flags &= ~SCB_PACKETIZED;
scb->flags |= SCB_ABORT|SCB_EXTERNAL_RESET;
ahd_freeze_devq(ahd, scb);
ahd_set_transaction_status(scb, CAM_REQUEUE_REQ);
ahd_freeze_scb(scb);
/* Notify XPT */
ahd_send_async(ahd, devinfo.channel, devinfo.target,
CAM_LUN_WILDCARD, AC_SENT_BDR);
/*
* Allow the sequencer to continue with
* non-pack processing.
*/
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd_outb(ahd, CLRLQOINT1, CLRLQOPHACHGINPKT);
if ((ahd->bugs & AHD_CLRLQO_AUTOCLR_BUG) != 0) {
ahd_outb(ahd, CLRLQOINT1, 0);
}
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) {
ahd_print_path(ahd, scb);
printk("Unexpected command phase from "
"packetized target\n");
}
#endif
break;
}
}
break;
}
case CFG4OVERRUN:
{
struct scb *scb;
u_int scb_index;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) {
printk("%s: CFG4OVERRUN mode = %x\n", ahd_name(ahd),
ahd_inb(ahd, MODE_PTR));
}
#endif
scb_index = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scb_index);
if (scb == NULL) {
/*
* Attempt to transfer to an SCB that is
* not outstanding.
*/
ahd_assert_atn(ahd);
ahd_outb(ahd, MSG_OUT, HOST_MSG);
ahd->msgout_buf[0] = ABORT_TASK;
ahd->msgout_len = 1;
ahd->msgout_index = 0;
ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
/*
* Clear status received flag to prevent any
* attempt to complete this bogus SCB.
*/
ahd_outb(ahd, SCB_CONTROL,
ahd_inb_scbram(ahd, SCB_CONTROL)
& ~STATUS_RCVD);
}
break;
}
case DUMP_CARD_STATE:
{
ahd_dump_card_state(ahd);
break;
}
case PDATA_REINIT:
{
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) {
printk("%s: PDATA_REINIT - DFCNTRL = 0x%x "
"SG_CACHE_SHADOW = 0x%x\n",
ahd_name(ahd), ahd_inb(ahd, DFCNTRL),
ahd_inb(ahd, SG_CACHE_SHADOW));
}
#endif
ahd_reinitialize_dataptrs(ahd);
break;
}
case HOST_MSG_LOOP:
{
struct ahd_devinfo devinfo;
/*
* The sequencer has encountered a message phase
* that requires host assistance for completion.
* While handling the message phase(s), we will be
* notified by the sequencer after each byte is
* transferred so we can track bus phase changes.
*
* If this is the first time we've seen a HOST_MSG_LOOP
* interrupt, initialize the state of the host message
* loop.
*/
ahd_fetch_devinfo(ahd, &devinfo);
if (ahd->msg_type == MSG_TYPE_NONE) {
struct scb *scb;
u_int scb_index;
u_int bus_phase;
bus_phase = ahd_inb(ahd, SCSISIGI) & PHASE_MASK;
if (bus_phase != P_MESGIN
&& bus_phase != P_MESGOUT) {
printk("ahd_intr: HOST_MSG_LOOP bad "
"phase 0x%x\n", bus_phase);
/*
* Probably transitioned to bus free before
* we got here. Just punt the message.
*/
ahd_dump_card_state(ahd);
ahd_clear_intstat(ahd);
ahd_restart(ahd);
return;
}
scb_index = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scb_index);
if (devinfo.role == ROLE_INITIATOR) {
if (bus_phase == P_MESGOUT)
ahd_setup_initiator_msgout(ahd,
&devinfo,
scb);
else {
ahd->msg_type =
MSG_TYPE_INITIATOR_MSGIN;
ahd->msgin_index = 0;
}
}
#ifdef AHD_TARGET_MODE
else {
if (bus_phase == P_MESGOUT) {
ahd->msg_type =
MSG_TYPE_TARGET_MSGOUT;
ahd->msgin_index = 0;
} else
ahd_setup_target_msgin(ahd,
&devinfo,
scb);
}
#endif
}
ahd_handle_message_phase(ahd);
break;
}
case NO_MATCH:
{
/* Ensure we don't leave the selection hardware on */
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
ahd_outb(ahd, SCSISEQ0, ahd_inb(ahd, SCSISEQ0) & ~ENSELO);
printk("%s:%c:%d: no active SCB for reconnecting "
"target - issuing BUS DEVICE RESET\n",
ahd_name(ahd), 'A', ahd_inb(ahd, SELID) >> 4);
printk("SAVED_SCSIID == 0x%x, SAVED_LUN == 0x%x, "
"REG0 == 0x%x ACCUM = 0x%x\n",
ahd_inb(ahd, SAVED_SCSIID), ahd_inb(ahd, SAVED_LUN),
ahd_inw(ahd, REG0), ahd_inb(ahd, ACCUM));
printk("SEQ_FLAGS == 0x%x, SCBPTR == 0x%x, BTT == 0x%x, "
"SINDEX == 0x%x\n",
ahd_inb(ahd, SEQ_FLAGS), ahd_get_scbptr(ahd),
ahd_find_busy_tcl(ahd,
BUILD_TCL(ahd_inb(ahd, SAVED_SCSIID),
ahd_inb(ahd, SAVED_LUN))),
ahd_inw(ahd, SINDEX));
printk("SELID == 0x%x, SCB_SCSIID == 0x%x, SCB_LUN == 0x%x, "
"SCB_CONTROL == 0x%x\n",
ahd_inb(ahd, SELID), ahd_inb_scbram(ahd, SCB_SCSIID),
ahd_inb_scbram(ahd, SCB_LUN),
ahd_inb_scbram(ahd, SCB_CONTROL));
printk("SCSIBUS[0] == 0x%x, SCSISIGI == 0x%x\n",
ahd_inb(ahd, SCSIBUS), ahd_inb(ahd, SCSISIGI));
printk("SXFRCTL0 == 0x%x\n", ahd_inb(ahd, SXFRCTL0));
printk("SEQCTL0 == 0x%x\n", ahd_inb(ahd, SEQCTL0));
ahd_dump_card_state(ahd);
ahd->msgout_buf[0] = TARGET_RESET;
ahd->msgout_len = 1;
ahd->msgout_index = 0;
ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
ahd_outb(ahd, MSG_OUT, HOST_MSG);
ahd_assert_atn(ahd);
break;
}
case PROTO_VIOLATION:
{
ahd_handle_proto_violation(ahd);
break;
}
case IGN_WIDE_RES:
{
struct ahd_devinfo devinfo;
ahd_fetch_devinfo(ahd, &devinfo);
ahd_handle_ign_wide_residue(ahd, &devinfo);
break;
}
case BAD_PHASE:
{
u_int lastphase;
lastphase = ahd_inb(ahd, LASTPHASE);
printk("%s:%c:%d: unknown scsi bus phase %x, "
"lastphase = 0x%x. Attempting to continue\n",
ahd_name(ahd), 'A',
SCSIID_TARGET(ahd, ahd_inb(ahd, SAVED_SCSIID)),
lastphase, ahd_inb(ahd, SCSISIGI));
break;
}
case MISSED_BUSFREE:
{
u_int lastphase;
lastphase = ahd_inb(ahd, LASTPHASE);
printk("%s:%c:%d: Missed busfree. "
"Lastphase = 0x%x, Curphase = 0x%x\n",
ahd_name(ahd), 'A',
SCSIID_TARGET(ahd, ahd_inb(ahd, SAVED_SCSIID)),
lastphase, ahd_inb(ahd, SCSISIGI));
ahd_restart(ahd);
return;
}
case DATA_OVERRUN:
{
/*
* When the sequencer detects an overrun, it
* places the controller in "BITBUCKET" mode
* and allows the target to complete its transfer.
* Unfortunately, none of the counters get updated
* when the controller is in this mode, so we have
* no way of knowing how large the overrun was.
*/
struct scb *scb;
u_int scbindex;
#ifdef AHD_DEBUG
u_int lastphase;
#endif
scbindex = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbindex);
#ifdef AHD_DEBUG
lastphase = ahd_inb(ahd, LASTPHASE);
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) {
ahd_print_path(ahd, scb);
printk("data overrun detected %s. Tag == 0x%x.\n",
ahd_lookup_phase_entry(lastphase)->phasemsg,
SCB_GET_TAG(scb));
ahd_print_path(ahd, scb);
printk("%s seen Data Phase. Length = %ld. "
"NumSGs = %d.\n",
ahd_inb(ahd, SEQ_FLAGS) & DPHASE
? "Have" : "Haven't",
ahd_get_transfer_length(scb), scb->sg_count);
ahd_dump_sglist(scb);
}
#endif
/*
* Set this and it will take effect when the
* target does a command complete.
*/
ahd_freeze_devq(ahd, scb);
ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR);
ahd_freeze_scb(scb);
break;
}
case MKMSG_FAILED:
{
struct ahd_devinfo devinfo;
struct scb *scb;
u_int scbid;
ahd_fetch_devinfo(ahd, &devinfo);
printk("%s:%c:%d:%d: Attempt to issue message failed\n",
ahd_name(ahd), devinfo.channel, devinfo.target,
devinfo.lun);
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb != NULL
&& (scb->flags & SCB_RECOVERY_SCB) != 0)
/*
* Ensure that we didn't put a second instance of this
* SCB into the QINFIFO.
*/
ahd_search_qinfifo(ahd, SCB_GET_TARGET(ahd, scb),
SCB_GET_CHANNEL(ahd, scb),
SCB_GET_LUN(scb), SCB_GET_TAG(scb),
ROLE_INITIATOR, /*status*/0,
SEARCH_REMOVE);
ahd_outb(ahd, SCB_CONTROL,
ahd_inb_scbram(ahd, SCB_CONTROL) & ~MK_MESSAGE);
break;
}
case TASKMGMT_FUNC_COMPLETE:
{
u_int scbid;
struct scb *scb;
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb != NULL) {
u_int lun;
u_int tag;
cam_status error;
ahd_print_path(ahd, scb);
printk("Task Management Func 0x%x Complete\n",
scb->hscb->task_management);
lun = CAM_LUN_WILDCARD;
tag = SCB_LIST_NULL;
switch (scb->hscb->task_management) {
case SIU_TASKMGMT_ABORT_TASK:
tag = SCB_GET_TAG(scb);
fallthrough;
case SIU_TASKMGMT_ABORT_TASK_SET:
case SIU_TASKMGMT_CLEAR_TASK_SET:
lun = scb->hscb->lun;
error = CAM_REQ_ABORTED;
ahd_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb),
'A', lun, tag, ROLE_INITIATOR,
error);
break;
case SIU_TASKMGMT_LUN_RESET:
lun = scb->hscb->lun;
fallthrough;
case SIU_TASKMGMT_TARGET_RESET:
{
struct ahd_devinfo devinfo;
ahd_scb_devinfo(ahd, &devinfo, scb);
error = CAM_BDR_SENT;
ahd_handle_devreset(ahd, &devinfo, lun,
CAM_BDR_SENT,
lun != CAM_LUN_WILDCARD
? "Lun Reset"
: "Target Reset",
/*verbose_level*/0);
break;
}
default:
panic("Unexpected TaskMgmt Func\n");
break;
}
}
break;
}
case TASKMGMT_CMD_CMPLT_OKAY:
{
u_int scbid;
struct scb *scb;
/*
* An ABORT TASK TMF failed to be delivered before
* the targeted command completed normally.
*/
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb != NULL) {
/*
* Remove the second instance of this SCB from
* the QINFIFO if it is still there.
*/
ahd_print_path(ahd, scb);
printk("SCB completes before TMF\n");
/*
* Handle losing the race. Wait until any
* current selection completes. We will then
* set the TMF back to zero in this SCB so that
* the sequencer doesn't bother to issue another
* sequencer interrupt for its completion.
*/
while ((ahd_inb(ahd, SCSISEQ0) & ENSELO) != 0
&& (ahd_inb(ahd, SSTAT0) & SELDO) == 0
&& (ahd_inb(ahd, SSTAT1) & SELTO) == 0)
;
ahd_outb(ahd, SCB_TASK_MANAGEMENT, 0);
ahd_search_qinfifo(ahd, SCB_GET_TARGET(ahd, scb),
SCB_GET_CHANNEL(ahd, scb),
SCB_GET_LUN(scb), SCB_GET_TAG(scb),
ROLE_INITIATOR, /*status*/0,
SEARCH_REMOVE);
}
break;
}
case TRACEPOINT0:
case TRACEPOINT1:
case TRACEPOINT2:
case TRACEPOINT3:
printk("%s: Tracepoint %d\n", ahd_name(ahd),
seqintcode - TRACEPOINT0);
break;
case NO_SEQINT:
break;
case SAW_HWERR:
ahd_handle_hwerrint(ahd);
break;
default:
printk("%s: Unexpected SEQINTCODE %d\n", ahd_name(ahd),
seqintcode);
break;
}
/*
* The sequencer is paused immediately on
* a SEQINT, so we should restart it when
* we're done.
*/
ahd_unpause(ahd);
}
static void
ahd_handle_scsiint(struct ahd_softc *ahd, u_int intstat)
{
struct scb *scb;
u_int status0;
u_int status3;
u_int status;
u_int lqistat1;
u_int lqostat0;
u_int scbid;
u_int busfreetime;
ahd_update_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
status3 = ahd_inb(ahd, SSTAT3) & (NTRAMPERR|OSRAMPERR);
status0 = ahd_inb(ahd, SSTAT0) & (IOERR|OVERRUN|SELDI|SELDO);
status = ahd_inb(ahd, SSTAT1) & (SELTO|SCSIRSTI|BUSFREE|SCSIPERR);
lqistat1 = ahd_inb(ahd, LQISTAT1);
lqostat0 = ahd_inb(ahd, LQOSTAT0);
busfreetime = ahd_inb(ahd, SSTAT2) & BUSFREETIME;
/*
* Ignore external resets after a bus reset.
*/
if (((status & SCSIRSTI) != 0) && (ahd->flags & AHD_BUS_RESET_ACTIVE)) {
ahd_outb(ahd, CLRSINT1, CLRSCSIRSTI);
return;
}
/*
* Clear bus reset flag
*/
ahd->flags &= ~AHD_BUS_RESET_ACTIVE;
if ((status0 & (SELDI|SELDO)) != 0) {
u_int simode0;
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
simode0 = ahd_inb(ahd, SIMODE0);
status0 &= simode0 & (IOERR|OVERRUN|SELDI|SELDO);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
}
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb != NULL
&& (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) != 0)
scb = NULL;
if ((status0 & IOERR) != 0) {
u_int now_lvd;
now_lvd = ahd_inb(ahd, SBLKCTL) & ENAB40;
printk("%s: Transceiver State Has Changed to %s mode\n",
ahd_name(ahd), now_lvd ? "LVD" : "SE");
ahd_outb(ahd, CLRSINT0, CLRIOERR);
/*
* A change in I/O mode is equivalent to a bus reset.
*/
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
ahd_pause(ahd);
ahd_setup_iocell_workaround(ahd);
ahd_unpause(ahd);
} else if ((status0 & OVERRUN) != 0) {
printk("%s: SCSI offset overrun detected. Resetting bus.\n",
ahd_name(ahd));
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
} else if ((status & SCSIRSTI) != 0) {
printk("%s: Someone reset channel A\n", ahd_name(ahd));
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/FALSE);
} else if ((status & SCSIPERR) != 0) {
/* Make sure the sequencer is in a safe location. */
ahd_clear_critical_section(ahd);
ahd_handle_transmission_error(ahd);
} else if (lqostat0 != 0) {
printk("%s: lqostat0 == 0x%x!\n", ahd_name(ahd), lqostat0);
ahd_outb(ahd, CLRLQOINT0, lqostat0);
if ((ahd->bugs & AHD_CLRLQO_AUTOCLR_BUG) != 0)
ahd_outb(ahd, CLRLQOINT1, 0);
} else if ((status & SELTO) != 0) {
/* Stop the selection */
ahd_outb(ahd, SCSISEQ0, 0);
/* Make sure the sequencer is in a safe location. */
ahd_clear_critical_section(ahd);
/* No more pending messages */
ahd_clear_msg_state(ahd);
/* Clear interrupt state */
ahd_outb(ahd, CLRSINT1, CLRSELTIMEO|CLRBUSFREE|CLRSCSIPERR);
/*
* Although the driver does not care about the
* 'Selection in Progress' status bit, the busy
* LED does. SELINGO is only cleared by a successful
* selection, so we must manually clear it to insure
* the LED turns off just incase no future successful
* selections occur (e.g. no devices on the bus).
*/
ahd_outb(ahd, CLRSINT0, CLRSELINGO);
scbid = ahd_inw(ahd, WAITING_TID_HEAD);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("%s: ahd_intr - referenced scb not "
"valid during SELTO scb(0x%x)\n",
ahd_name(ahd), scbid);
ahd_dump_card_state(ahd);
} else {
struct ahd_devinfo devinfo;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_SELTO) != 0) {
ahd_print_path(ahd, scb);
printk("Saw Selection Timeout for SCB 0x%x\n",
scbid);
}
#endif
ahd_scb_devinfo(ahd, &devinfo, scb);
ahd_set_transaction_status(scb, CAM_SEL_TIMEOUT);
ahd_freeze_devq(ahd, scb);
/*
* Cancel any pending transactions on the device
* now that it seems to be missing. This will
* also revert us to async/narrow transfers until
* we can renegotiate with the device.
*/
ahd_handle_devreset(ahd, &devinfo,
CAM_LUN_WILDCARD,
CAM_SEL_TIMEOUT,
"Selection Timeout",
/*verbose_level*/1);
}
ahd_outb(ahd, CLRINT, CLRSCSIINT);
ahd_iocell_first_selection(ahd);
ahd_unpause(ahd);
} else if ((status0 & (SELDI|SELDO)) != 0) {
ahd_iocell_first_selection(ahd);
ahd_unpause(ahd);
} else if (status3 != 0) {
printk("%s: SCSI Cell parity error SSTAT3 == 0x%x\n",
ahd_name(ahd), status3);
ahd_outb(ahd, CLRSINT3, status3);
} else if ((lqistat1 & (LQIPHASE_LQ|LQIPHASE_NLQ)) != 0) {
/* Make sure the sequencer is in a safe location. */
ahd_clear_critical_section(ahd);
ahd_handle_lqiphase_error(ahd, lqistat1);
} else if ((lqistat1 & LQICRCI_NLQ) != 0) {
/*
* This status can be delayed during some
* streaming operations. The SCSIPHASE
* handler has already dealt with this case
* so just clear the error.
*/
ahd_outb(ahd, CLRLQIINT1, CLRLQICRCI_NLQ);
} else if ((status & BUSFREE) != 0
|| (lqistat1 & LQOBUSFREE) != 0) {
u_int lqostat1;
int restart;
int clear_fifo;
int packetized;
u_int mode;
/*
* Clear our selection hardware as soon as possible.
* We may have an entry in the waiting Q for this target,
* that is affected by this busfree and we don't want to
* go about selecting the target while we handle the event.
*/
ahd_outb(ahd, SCSISEQ0, 0);
/* Make sure the sequencer is in a safe location. */
ahd_clear_critical_section(ahd);
/*
* Determine what we were up to at the time of
* the busfree.
*/
mode = AHD_MODE_SCSI;
busfreetime = ahd_inb(ahd, SSTAT2) & BUSFREETIME;
lqostat1 = ahd_inb(ahd, LQOSTAT1);
switch (busfreetime) {
case BUSFREE_DFF0:
case BUSFREE_DFF1:
{
mode = busfreetime == BUSFREE_DFF0
? AHD_MODE_DFF0 : AHD_MODE_DFF1;
ahd_set_modes(ahd, mode, mode);
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("%s: Invalid SCB %d in DFF%d "
"during unexpected busfree\n",
ahd_name(ahd), scbid, mode);
packetized = 0;
} else
packetized = (scb->flags & SCB_PACKETIZED) != 0;
clear_fifo = 1;
break;
}
case BUSFREE_LQO:
clear_fifo = 0;
packetized = 1;
break;
default:
clear_fifo = 0;
packetized = (lqostat1 & LQOBUSFREE) != 0;
if (!packetized
&& ahd_inb(ahd, LASTPHASE) == P_BUSFREE
&& (ahd_inb(ahd, SSTAT0) & SELDI) == 0
&& ((ahd_inb(ahd, SSTAT0) & SELDO) == 0
|| (ahd_inb(ahd, SCSISEQ0) & ENSELO) == 0))
/*
* Assume packetized if we are not
* on the bus in a non-packetized
* capacity and any pending selection
* was a packetized selection.
*/
packetized = 1;
break;
}
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0)
printk("Saw Busfree. Busfreetime = 0x%x.\n",
busfreetime);
#endif
/*
* Busfrees that occur in non-packetized phases are
* handled by the nonpkt_busfree handler.
*/
if (packetized && ahd_inb(ahd, LASTPHASE) == P_BUSFREE) {
restart = ahd_handle_pkt_busfree(ahd, busfreetime);
} else {
packetized = 0;
restart = ahd_handle_nonpkt_busfree(ahd);
}
/*
* Clear the busfree interrupt status. The setting of
* the interrupt is a pulse, so in a perfect world, we
* would not need to muck with the ENBUSFREE logic. This
* would ensure that if the bus moves on to another
* connection, busfree protection is still in force. If
* BUSFREEREV is broken, however, we must manually clear
* the ENBUSFREE if the busfree occurred during a non-pack
* connection so that we don't get false positives during
* future, packetized, connections.
*/
ahd_outb(ahd, CLRSINT1, CLRBUSFREE);
if (packetized == 0
&& (ahd->bugs & AHD_BUSFREEREV_BUG) != 0)
ahd_outb(ahd, SIMODE1,
ahd_inb(ahd, SIMODE1) & ~ENBUSFREE);
if (clear_fifo)
ahd_clear_fifo(ahd, mode);
ahd_clear_msg_state(ahd);
ahd_outb(ahd, CLRINT, CLRSCSIINT);
if (restart) {
ahd_restart(ahd);
} else {
ahd_unpause(ahd);
}
} else {
printk("%s: Missing case in ahd_handle_scsiint. status = %x\n",
ahd_name(ahd), status);
ahd_dump_card_state(ahd);
ahd_clear_intstat(ahd);
ahd_unpause(ahd);
}
}
static void
ahd_handle_transmission_error(struct ahd_softc *ahd)
{
struct scb *scb;
u_int scbid;
u_int lqistat1;
u_int msg_out;
u_int curphase;
u_int lastphase;
u_int perrdiag;
u_int cur_col;
int silent;
scb = NULL;
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
lqistat1 = ahd_inb(ahd, LQISTAT1) & ~(LQIPHASE_LQ|LQIPHASE_NLQ);
ahd_inb(ahd, LQISTAT2);
if ((lqistat1 & (LQICRCI_NLQ|LQICRCI_LQ)) == 0
&& (ahd->bugs & AHD_NLQICRC_DELAYED_BUG) != 0) {
u_int lqistate;
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
lqistate = ahd_inb(ahd, LQISTATE);
if ((lqistate >= 0x1E && lqistate <= 0x24)
|| (lqistate == 0x29)) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) {
printk("%s: NLQCRC found via LQISTATE\n",
ahd_name(ahd));
}
#endif
lqistat1 |= LQICRCI_NLQ;
}
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
}
ahd_outb(ahd, CLRLQIINT1, lqistat1);
lastphase = ahd_inb(ahd, LASTPHASE);
curphase = ahd_inb(ahd, SCSISIGI) & PHASE_MASK;
perrdiag = ahd_inb(ahd, PERRDIAG);
msg_out = INITIATOR_ERROR;
ahd_outb(ahd, CLRSINT1, CLRSCSIPERR);
/*
* Try to find the SCB associated with this error.
*/
silent = FALSE;
if (lqistat1 == 0
|| (lqistat1 & LQICRCI_NLQ) != 0) {
if ((lqistat1 & (LQICRCI_NLQ|LQIOVERI_NLQ)) != 0)
ahd_set_active_fifo(ahd);
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb != NULL && SCB_IS_SILENT(scb))
silent = TRUE;
}
cur_col = 0;
if (silent == FALSE) {
printk("%s: Transmission error detected\n", ahd_name(ahd));
ahd_lqistat1_print(lqistat1, &cur_col, 50);
ahd_lastphase_print(lastphase, &cur_col, 50);
ahd_scsisigi_print(curphase, &cur_col, 50);
ahd_perrdiag_print(perrdiag, &cur_col, 50);
printk("\n");
ahd_dump_card_state(ahd);
}
if ((lqistat1 & (LQIOVERI_LQ|LQIOVERI_NLQ)) != 0) {
if (silent == FALSE) {
printk("%s: Gross protocol error during incoming "
"packet. lqistat1 == 0x%x. Resetting bus.\n",
ahd_name(ahd), lqistat1);
}
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
return;
} else if ((lqistat1 & LQICRCI_LQ) != 0) {
/*
* A CRC error has been detected on an incoming LQ.
* The bus is currently hung on the last ACK.
* Hit LQIRETRY to release the last ack, and
* wait for the sequencer to determine that ATNO
* is asserted while in message out to take us
* to our host message loop. No NONPACKREQ or
* LQIPHASE type errors will occur in this
* scenario. After this first LQIRETRY, the LQI
* manager will be in ISELO where it will
* happily sit until another packet phase begins.
* Unexpected bus free detection is enabled
* through any phases that occur after we release
* this last ack until the LQI manager sees a
* packet phase. This implies we may have to
* ignore a perfectly valid "unexected busfree"
* after our "initiator detected error" message is
* sent. A busfree is the expected response after
* we tell the target that it's L_Q was corrupted.
* (SPI4R09 10.7.3.3.3)
*/
ahd_outb(ahd, LQCTL2, LQIRETRY);
printk("LQIRetry for LQICRCI_LQ to release ACK\n");
} else if ((lqistat1 & LQICRCI_NLQ) != 0) {
/*
* We detected a CRC error in a NON-LQ packet.
* The hardware has varying behavior in this situation
* depending on whether this packet was part of a
* stream or not.
*
* PKT by PKT mode:
* The hardware has already acked the complete packet.
* If the target honors our outstanding ATN condition,
* we should be (or soon will be) in MSGOUT phase.
* This will trigger the LQIPHASE_LQ status bit as the
* hardware was expecting another LQ. Unexpected
* busfree detection is enabled. Once LQIPHASE_LQ is
* true (first entry into host message loop is much
* the same), we must clear LQIPHASE_LQ and hit
* LQIRETRY so the hardware is ready to handle
* a future LQ. NONPACKREQ will not be asserted again
* once we hit LQIRETRY until another packet is
* processed. The target may either go busfree
* or start another packet in response to our message.
*
* Read Streaming P0 asserted:
* If we raise ATN and the target completes the entire
* stream (P0 asserted during the last packet), the
* hardware will ack all data and return to the ISTART
* state. When the target reponds to our ATN condition,
* LQIPHASE_LQ will be asserted. We should respond to
* this with an LQIRETRY to prepare for any future
* packets. NONPACKREQ will not be asserted again
* once we hit LQIRETRY until another packet is
* processed. The target may either go busfree or
* start another packet in response to our message.
* Busfree detection is enabled.
*
* Read Streaming P0 not asserted:
* If we raise ATN and the target transitions to
* MSGOUT in or after a packet where P0 is not
* asserted, the hardware will assert LQIPHASE_NLQ.
* We should respond to the LQIPHASE_NLQ with an
* LQIRETRY. Should the target stay in a non-pkt
* phase after we send our message, the hardware
* will assert LQIPHASE_LQ. Recovery is then just as
* listed above for the read streaming with P0 asserted.
* Busfree detection is enabled.
*/
if (silent == FALSE)
printk("LQICRC_NLQ\n");
if (scb == NULL) {
printk("%s: No SCB valid for LQICRC_NLQ. "
"Resetting bus\n", ahd_name(ahd));
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
return;
}
} else if ((lqistat1 & LQIBADLQI) != 0) {
printk("Need to handle BADLQI!\n");
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
return;
} else if ((perrdiag & (PARITYERR|PREVPHASE)) == PARITYERR) {
if ((curphase & ~P_DATAIN_DT) != 0) {
/* Ack the byte. So we can continue. */
if (silent == FALSE)
printk("Acking %s to clear perror\n",
ahd_lookup_phase_entry(curphase)->phasemsg);
ahd_inb(ahd, SCSIDAT);
}
if (curphase == P_MESGIN)
msg_out = MSG_PARITY_ERROR;
}
/*
* We've set the hardware to assert ATN if we
* get a parity error on "in" phases, so all we
* need to do is stuff the message buffer with
* the appropriate message. "In" phases have set
* mesg_out to something other than NOP.
*/
ahd->send_msg_perror = msg_out;
if (scb != NULL && msg_out == INITIATOR_ERROR)
scb->flags |= SCB_TRANSMISSION_ERROR;
ahd_outb(ahd, MSG_OUT, HOST_MSG);
ahd_outb(ahd, CLRINT, CLRSCSIINT);
ahd_unpause(ahd);
}
static void
ahd_handle_lqiphase_error(struct ahd_softc *ahd, u_int lqistat1)
{
/*
* Clear the sources of the interrupts.
*/
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd_outb(ahd, CLRLQIINT1, lqistat1);
/*
* If the "illegal" phase changes were in response
* to our ATN to flag a CRC error, AND we ended up
* on packet boundaries, clear the error, restart the
* LQI manager as appropriate, and go on our merry
* way toward sending the message. Otherwise, reset
* the bus to clear the error.
*/
ahd_set_active_fifo(ahd);
if ((ahd_inb(ahd, SCSISIGO) & ATNO) != 0
&& (ahd_inb(ahd, MDFFSTAT) & DLZERO) != 0) {
if ((lqistat1 & LQIPHASE_LQ) != 0) {
printk("LQIRETRY for LQIPHASE_LQ\n");
ahd_outb(ahd, LQCTL2, LQIRETRY);
} else if ((lqistat1 & LQIPHASE_NLQ) != 0) {
printk("LQIRETRY for LQIPHASE_NLQ\n");
ahd_outb(ahd, LQCTL2, LQIRETRY);
} else
panic("ahd_handle_lqiphase_error: No phase errors\n");
ahd_dump_card_state(ahd);
ahd_outb(ahd, CLRINT, CLRSCSIINT);
ahd_unpause(ahd);
} else {
printk("Resetting Channel for LQI Phase error\n");
ahd_dump_card_state(ahd);
ahd_reset_channel(ahd, 'A', /*Initiate Reset*/TRUE);
}
}
/*
* Packetized unexpected or expected busfree.
* Entered in mode based on busfreetime.
*/
static int
ahd_handle_pkt_busfree(struct ahd_softc *ahd, u_int busfreetime)
{
u_int lqostat1;
AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
lqostat1 = ahd_inb(ahd, LQOSTAT1);
if ((lqostat1 & LQOBUSFREE) != 0) {
struct scb *scb;
u_int scbid;
u_int saved_scbptr;
u_int waiting_h;
u_int waiting_t;
u_int next;
/*
* The LQO manager detected an unexpected busfree
* either:
*
* 1) During an outgoing LQ.
* 2) After an outgoing LQ but before the first
* REQ of the command packet.
* 3) During an outgoing command packet.
*
* In all cases, CURRSCB is pointing to the
* SCB that encountered the failure. Clean
* up the queue, clear SELDO and LQOBUSFREE,
* and allow the sequencer to restart the select
* out at its lesure.
*/
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
scbid = ahd_inw(ahd, CURRSCB);
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL)
panic("SCB not valid during LQOBUSFREE");
/*
* Clear the status.
*/
ahd_outb(ahd, CLRLQOINT1, CLRLQOBUSFREE);
if ((ahd->bugs & AHD_CLRLQO_AUTOCLR_BUG) != 0)
ahd_outb(ahd, CLRLQOINT1, 0);
ahd_outb(ahd, SCSISEQ0, ahd_inb(ahd, SCSISEQ0) & ~ENSELO);
ahd_flush_device_writes(ahd);
ahd_outb(ahd, CLRSINT0, CLRSELDO);
/*
* Return the LQO manager to its idle loop. It will
* not do this automatically if the busfree occurs
* after the first REQ of either the LQ or command
* packet or between the LQ and command packet.
*/
ahd_outb(ahd, LQCTL2, ahd_inb(ahd, LQCTL2) | LQOTOIDLE);
/*
* Update the waiting for selection queue so
* we restart on the correct SCB.
*/
waiting_h = ahd_inw(ahd, WAITING_TID_HEAD);
saved_scbptr = ahd_get_scbptr(ahd);
if (waiting_h != scbid) {
ahd_outw(ahd, WAITING_TID_HEAD, scbid);
waiting_t = ahd_inw(ahd, WAITING_TID_TAIL);
if (waiting_t == waiting_h) {
ahd_outw(ahd, WAITING_TID_TAIL, scbid);
next = SCB_LIST_NULL;
} else {
ahd_set_scbptr(ahd, waiting_h);
next = ahd_inw_scbram(ahd, SCB_NEXT2);
}
ahd_set_scbptr(ahd, scbid);
ahd_outw(ahd, SCB_NEXT2, next);
}
ahd_set_scbptr(ahd, saved_scbptr);
if (scb->crc_retry_count < AHD_MAX_LQ_CRC_ERRORS) {
if (SCB_IS_SILENT(scb) == FALSE) {
ahd_print_path(ahd, scb);
printk("Probable outgoing LQ CRC error. "
"Retrying command\n");
}
scb->crc_retry_count++;
} else {
ahd_set_transaction_status(scb, CAM_UNCOR_PARITY);
ahd_freeze_scb(scb);
ahd_freeze_devq(ahd, scb);
}
/* Return unpausing the sequencer. */
return (0);
} else if ((ahd_inb(ahd, PERRDIAG) & PARITYERR) != 0) {
/*
* Ignore what are really parity errors that
* occur on the last REQ of a free running
* clock prior to going busfree. Some drives
* do not properly active negate just before
* going busfree resulting in a parity glitch.
*/
ahd_outb(ahd, CLRSINT1, CLRSCSIPERR|CLRBUSFREE);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MASKED_ERRORS) != 0)
printk("%s: Parity on last REQ detected "
"during busfree phase.\n",
ahd_name(ahd));
#endif
/* Return unpausing the sequencer. */
return (0);
}
if (ahd->src_mode != AHD_MODE_SCSI) {
u_int scbid;
struct scb *scb;
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
ahd_print_path(ahd, scb);
printk("Unexpected PKT busfree condition\n");
ahd_dump_card_state(ahd);
ahd_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb), 'A',
SCB_GET_LUN(scb), SCB_GET_TAG(scb),
ROLE_INITIATOR, CAM_UNEXP_BUSFREE);
/* Return restarting the sequencer. */
return (1);
}
printk("%s: Unexpected PKT busfree condition\n", ahd_name(ahd));
ahd_dump_card_state(ahd);
/* Restart the sequencer. */
return (1);
}
/*
* Non-packetized unexpected or expected busfree.
*/
static int
ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
{
struct ahd_devinfo devinfo;
struct scb *scb;
u_int lastphase;
u_int saved_scsiid;
u_int saved_lun;
u_int target;
u_int initiator_role_id;
u_int scbid;
u_int ppr_busfree;
int printerror;
/*
* Look at what phase we were last in. If its message out,
* chances are pretty good that the busfree was in response
* to one of our abort requests.
*/
lastphase = ahd_inb(ahd, LASTPHASE);
saved_scsiid = ahd_inb(ahd, SAVED_SCSIID);
saved_lun = ahd_inb(ahd, SAVED_LUN);
target = SCSIID_TARGET(ahd, saved_scsiid);
initiator_role_id = SCSIID_OUR_ID(saved_scsiid);
ahd_compile_devinfo(&devinfo, initiator_role_id,
target, saved_lun, 'A', ROLE_INITIATOR);
printerror = 1;
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
if (scb != NULL
&& (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) != 0)
scb = NULL;
ppr_busfree = (ahd->msg_flags & MSG_FLAG_EXPECT_PPR_BUSFREE) != 0;
if (lastphase == P_MESGOUT) {
u_int tag;
tag = SCB_LIST_NULL;
if (ahd_sent_msg(ahd, AHDMSG_1B, ABORT_TASK, TRUE)
|| ahd_sent_msg(ahd, AHDMSG_1B, ABORT_TASK_SET, TRUE)) {
int found;
int sent_msg;
if (scb == NULL) {
ahd_print_devinfo(ahd, &devinfo);
printk("Abort for unidentified "
"connection completed.\n");
/* restart the sequencer. */
return (1);
}
sent_msg = ahd->msgout_buf[ahd->msgout_index - 1];
ahd_print_path(ahd, scb);
printk("SCB %d - Abort%s Completed.\n",
SCB_GET_TAG(scb),
sent_msg == ABORT_TASK ? "" : " Tag");
if (sent_msg == ABORT_TASK)
tag = SCB_GET_TAG(scb);
if ((scb->flags & SCB_EXTERNAL_RESET) != 0) {
/*
* This abort is in response to an
* unexpected switch to command phase
* for a packetized connection. Since
* the identify message was never sent,
* "saved lun" is 0. We really want to
* abort only the SCB that encountered
* this error, which could have a different
* lun. The SCB will be retried so the OS
* will see the UA after renegotiating to
* packetized.
*/
tag = SCB_GET_TAG(scb);
saved_lun = scb->hscb->lun;
}
found = ahd_abort_scbs(ahd, target, 'A', saved_lun,
tag, ROLE_INITIATOR,
CAM_REQ_ABORTED);
printk("found == 0x%x\n", found);
printerror = 0;
} else if (ahd_sent_msg(ahd, AHDMSG_1B,
TARGET_RESET, TRUE)) {
ahd_handle_devreset(ahd, &devinfo, CAM_LUN_WILDCARD,
CAM_BDR_SENT, "Bus Device Reset",
/*verbose_level*/0);
printerror = 0;
} else if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_PPR, FALSE)
&& ppr_busfree == 0) {
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
/*
* PPR Rejected.
*
* If the previous negotiation was packetized,
* this could be because the device has been
* reset without our knowledge. Force our
* current negotiation to async and retry the
* negotiation. Otherwise retry the command
* with non-ppr negotiation.
*/
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("PPR negotiation rejected busfree.\n");
#endif
tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
devinfo.our_scsiid,
devinfo.target, &tstate);
if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ)!=0) {
ahd_set_width(ahd, &devinfo,
MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_CUR,
/*paused*/TRUE);
ahd_set_syncrate(ahd, &devinfo,
/*period*/0, /*offset*/0,
/*ppr_options*/0,
AHD_TRANS_CUR,
/*paused*/TRUE);
/*
* The expect PPR busfree handler below
* will effect the retry and necessary
* abort.
*/
} else {
tinfo->curr.transport_version = 2;
tinfo->goal.transport_version = 2;
tinfo->goal.ppr_options = 0;
if (scb != NULL) {
/*
* Remove any SCBs in the waiting
* for selection queue that may
* also be for this target so that
* command ordering is preserved.
*/
ahd_freeze_devq(ahd, scb);
ahd_qinfifo_requeue_tail(ahd, scb);
}
printerror = 0;
}
} else if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_WDTR, FALSE)
&& ppr_busfree == 0) {
/*
* Negotiation Rejected. Go-narrow and
* retry command.
*/
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("WDTR negotiation rejected busfree.\n");
#endif
ahd_set_width(ahd, &devinfo,
MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_CUR|AHD_TRANS_GOAL,
/*paused*/TRUE);
if (scb != NULL) {
/*
* Remove any SCBs in the waiting for
* selection queue that may also be for
* this target so that command ordering
* is preserved.
*/
ahd_freeze_devq(ahd, scb);
ahd_qinfifo_requeue_tail(ahd, scb);
}
printerror = 0;
} else if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_SDTR, FALSE)
&& ppr_busfree == 0) {
/*
* Negotiation Rejected. Go-async and
* retry command.
*/
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("SDTR negotiation rejected busfree.\n");
#endif
ahd_set_syncrate(ahd, &devinfo,
/*period*/0, /*offset*/0,
/*ppr_options*/0,
AHD_TRANS_CUR|AHD_TRANS_GOAL,
/*paused*/TRUE);
if (scb != NULL) {
/*
* Remove any SCBs in the waiting for
* selection queue that may also be for
* this target so that command ordering
* is preserved.
*/
ahd_freeze_devq(ahd, scb);
ahd_qinfifo_requeue_tail(ahd, scb);
}
printerror = 0;
} else if ((ahd->msg_flags & MSG_FLAG_EXPECT_IDE_BUSFREE) != 0
&& ahd_sent_msg(ahd, AHDMSG_1B,
INITIATOR_ERROR, TRUE)) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("Expected IDE Busfree\n");
#endif
printerror = 0;
} else if ((ahd->msg_flags & MSG_FLAG_EXPECT_QASREJ_BUSFREE)
&& ahd_sent_msg(ahd, AHDMSG_1B,
MESSAGE_REJECT, TRUE)) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("Expected QAS Reject Busfree\n");
#endif
printerror = 0;
}
}
/*
* The busfree required flag is honored at the end of
* the message phases. We check it last in case we
* had to send some other message that caused a busfree.
*/
if (scb != NULL && printerror != 0
&& (lastphase == P_MESGIN || lastphase == P_MESGOUT)
&& ((ahd->msg_flags & MSG_FLAG_EXPECT_PPR_BUSFREE) != 0)) {
ahd_freeze_devq(ahd, scb);
ahd_set_transaction_status(scb, CAM_REQUEUE_REQ);
ahd_freeze_scb(scb);
if ((ahd->msg_flags & MSG_FLAG_IU_REQ_CHANGED) != 0) {
ahd_abort_scbs(ahd, SCB_GET_TARGET(ahd, scb),
SCB_GET_CHANNEL(ahd, scb),
SCB_GET_LUN(scb), SCB_LIST_NULL,
ROLE_INITIATOR, CAM_REQ_ABORTED);
} else {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("PPR Negotiation Busfree.\n");
#endif
ahd_done(ahd, scb);
}
printerror = 0;
}
if (printerror != 0) {
int aborted;
aborted = 0;
if (scb != NULL) {
u_int tag;
if ((scb->hscb->control & TAG_ENB) != 0)
tag = SCB_GET_TAG(scb);
else
tag = SCB_LIST_NULL;
ahd_print_path(ahd, scb);
aborted = ahd_abort_scbs(ahd, target, 'A',
SCB_GET_LUN(scb), tag,
ROLE_INITIATOR,
CAM_UNEXP_BUSFREE);
} else {
/*
* We had not fully identified this connection,
* so we cannot abort anything.
*/
printk("%s: ", ahd_name(ahd));
}
printk("Unexpected busfree %s, %d SCBs aborted, "
"PRGMCNT == 0x%x\n",
ahd_lookup_phase_entry(lastphase)->phasemsg,
aborted,
ahd_inw(ahd, PRGMCNT));
ahd_dump_card_state(ahd);
if (lastphase != P_BUSFREE)
ahd_force_renegotiation(ahd, &devinfo);
}
/* Always restart the sequencer. */
return (1);
}
static void
ahd_handle_proto_violation(struct ahd_softc *ahd)
{
struct ahd_devinfo devinfo;
struct scb *scb;
u_int scbid;
u_int seq_flags;
u_int curphase;
u_int lastphase;
int found;
ahd_fetch_devinfo(ahd, &devinfo);
scbid = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scbid);
seq_flags = ahd_inb(ahd, SEQ_FLAGS);
curphase = ahd_inb(ahd, SCSISIGI) & PHASE_MASK;
lastphase = ahd_inb(ahd, LASTPHASE);
if ((seq_flags & NOT_IDENTIFIED) != 0) {
/*
* The reconnecting target either did not send an
* identify message, or did, but we didn't find an SCB
* to match.
*/
ahd_print_devinfo(ahd, &devinfo);
printk("Target did not send an IDENTIFY message. "
"LASTPHASE = 0x%x.\n", lastphase);
scb = NULL;
} else if (scb == NULL) {
/*
* We don't seem to have an SCB active for this
* transaction. Print an error and reset the bus.
*/
ahd_print_devinfo(ahd, &devinfo);
printk("No SCB found during protocol violation\n");
goto proto_violation_reset;
} else {
ahd_set_transaction_status(scb, CAM_SEQUENCE_FAIL);
if ((seq_flags & NO_CDB_SENT) != 0) {
ahd_print_path(ahd, scb);
printk("No or incomplete CDB sent to device.\n");
} else if ((ahd_inb_scbram(ahd, SCB_CONTROL)
& STATUS_RCVD) == 0) {
/*
* The target never bothered to provide status to
* us prior to completing the command. Since we don't
* know the disposition of this command, we must attempt
* to abort it. Assert ATN and prepare to send an abort
* message.
*/
ahd_print_path(ahd, scb);
printk("Completed command without status.\n");
} else {
ahd_print_path(ahd, scb);
printk("Unknown protocol violation.\n");
ahd_dump_card_state(ahd);
}
}
if ((lastphase & ~P_DATAIN_DT) == 0
|| lastphase == P_COMMAND) {
proto_violation_reset:
/*
* Target either went directly to data
* phase or didn't respond to our ATN.
* The only safe thing to do is to blow
* it away with a bus reset.
*/
found = ahd_reset_channel(ahd, 'A', TRUE);
printk("%s: Issued Channel %c Bus Reset. "
"%d SCBs aborted\n", ahd_name(ahd), 'A', found);
} else {
/*
* Leave the selection hardware off in case
* this abort attempt will affect yet to
* be sent commands.
*/
ahd_outb(ahd, SCSISEQ0,
ahd_inb(ahd, SCSISEQ0) & ~ENSELO);
ahd_assert_atn(ahd);
ahd_outb(ahd, MSG_OUT, HOST_MSG);
if (scb == NULL) {
ahd_print_devinfo(ahd, &devinfo);
ahd->msgout_buf[0] = ABORT_TASK;
ahd->msgout_len = 1;
ahd->msgout_index = 0;
ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
} else {
ahd_print_path(ahd, scb);
scb->flags |= SCB_ABORT;
}
printk("Protocol violation %s. Attempting to abort.\n",
ahd_lookup_phase_entry(curphase)->phasemsg);
}
}
/*
* Force renegotiation to occur the next time we initiate
* a command to the current device.
*/
static void
ahd_force_renegotiation(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
{
struct ahd_initiator_tinfo *targ_info;
struct ahd_tmode_tstate *tstate;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) {
ahd_print_devinfo(ahd, devinfo);
printk("Forcing renegotiation\n");
}
#endif
targ_info = ahd_fetch_transinfo(ahd,
devinfo->channel,
devinfo->our_scsiid,
devinfo->target,
&tstate);
ahd_update_neg_request(ahd, devinfo, tstate,
targ_info, AHD_NEG_IF_NON_ASYNC);
}
#define AHD_MAX_STEPS 2000
static void
ahd_clear_critical_section(struct ahd_softc *ahd)
{
ahd_mode_state saved_modes;
int stepping;
int steps;
int first_instr;
u_int simode0;
u_int simode1;
u_int simode3;
u_int lqimode0;
u_int lqimode1;
u_int lqomode0;
u_int lqomode1;
if (ahd->num_critical_sections == 0)
return;
stepping = FALSE;
steps = 0;
first_instr = 0;
simode0 = 0;
simode1 = 0;
simode3 = 0;
lqimode0 = 0;
lqimode1 = 0;
lqomode0 = 0;
lqomode1 = 0;
saved_modes = ahd_save_modes(ahd);
for (;;) {
struct cs *cs;
u_int seqaddr;
u_int i;
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
seqaddr = ahd_inw(ahd, CURADDR);
cs = ahd->critical_sections;
for (i = 0; i < ahd->num_critical_sections; i++, cs++) {
if (cs->begin < seqaddr && cs->end >= seqaddr)
break;
}
if (i == ahd->num_critical_sections)
break;
if (steps > AHD_MAX_STEPS) {
printk("%s: Infinite loop in critical section\n"
"%s: First Instruction 0x%x now 0x%x\n",
ahd_name(ahd), ahd_name(ahd), first_instr,
seqaddr);
ahd_dump_card_state(ahd);
panic("critical section loop");
}
steps++;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0)
printk("%s: Single stepping at 0x%x\n", ahd_name(ahd),
seqaddr);
#endif
if (stepping == FALSE) {
first_instr = seqaddr;
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
simode0 = ahd_inb(ahd, SIMODE0);
simode3 = ahd_inb(ahd, SIMODE3);
lqimode0 = ahd_inb(ahd, LQIMODE0);
lqimode1 = ahd_inb(ahd, LQIMODE1);
lqomode0 = ahd_inb(ahd, LQOMODE0);
lqomode1 = ahd_inb(ahd, LQOMODE1);
ahd_outb(ahd, SIMODE0, 0);
ahd_outb(ahd, SIMODE3, 0);
ahd_outb(ahd, LQIMODE0, 0);
ahd_outb(ahd, LQIMODE1, 0);
ahd_outb(ahd, LQOMODE0, 0);
ahd_outb(ahd, LQOMODE1, 0);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
simode1 = ahd_inb(ahd, SIMODE1);
/*
* We don't clear ENBUSFREE. Unfortunately
* we cannot re-enable busfree detection within
* the current connection, so we must leave it
* on while single stepping.
*/
ahd_outb(ahd, SIMODE1, simode1 & ENBUSFREE);
ahd_outb(ahd, SEQCTL0, ahd_inb(ahd, SEQCTL0) | STEP);
stepping = TRUE;
}
ahd_outb(ahd, CLRSINT1, CLRBUSFREE);
ahd_outb(ahd, CLRINT, CLRSCSIINT);
ahd_set_modes(ahd, ahd->saved_src_mode, ahd->saved_dst_mode);
ahd_outb(ahd, HCNTRL, ahd->unpause);
while (!ahd_is_paused(ahd))
ahd_delay(200);
ahd_update_modes(ahd);
}
if (stepping) {
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
ahd_outb(ahd, SIMODE0, simode0);
ahd_outb(ahd, SIMODE3, simode3);
ahd_outb(ahd, LQIMODE0, lqimode0);
ahd_outb(ahd, LQIMODE1, lqimode1);
ahd_outb(ahd, LQOMODE0, lqomode0);
ahd_outb(ahd, LQOMODE1, lqomode1);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd_outb(ahd, SEQCTL0, ahd_inb(ahd, SEQCTL0) & ~STEP);
ahd_outb(ahd, SIMODE1, simode1);
/*
* SCSIINT seems to glitch occasionally when
* the interrupt masks are restored. Clear SCSIINT
* one more time so that only persistent errors
* are seen as a real interrupt.
*/
ahd_outb(ahd, CLRINT, CLRSCSIINT);
}
ahd_restore_modes(ahd, saved_modes);
}
/*
* Clear any pending interrupt status.
*/
static void
ahd_clear_intstat(struct ahd_softc *ahd)
{
AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
/* Clear any interrupt conditions this may have caused */
ahd_outb(ahd, CLRLQIINT0, CLRLQIATNQAS|CLRLQICRCT1|CLRLQICRCT2
|CLRLQIBADLQT|CLRLQIATNLQ|CLRLQIATNCMD);
ahd_outb(ahd, CLRLQIINT1, CLRLQIPHASE_LQ|CLRLQIPHASE_NLQ|CLRLIQABORT
|CLRLQICRCI_LQ|CLRLQICRCI_NLQ|CLRLQIBADLQI
|CLRLQIOVERI_LQ|CLRLQIOVERI_NLQ|CLRNONPACKREQ);
ahd_outb(ahd, CLRLQOINT0, CLRLQOTARGSCBPERR|CLRLQOSTOPT2|CLRLQOATNLQ
|CLRLQOATNPKT|CLRLQOTCRC);
ahd_outb(ahd, CLRLQOINT1, CLRLQOINITSCBPERR|CLRLQOSTOPI2|CLRLQOBADQAS
|CLRLQOBUSFREE|CLRLQOPHACHGINPKT);
if ((ahd->bugs & AHD_CLRLQO_AUTOCLR_BUG) != 0) {
ahd_outb(ahd, CLRLQOINT0, 0);
ahd_outb(ahd, CLRLQOINT1, 0);
}
ahd_outb(ahd, CLRSINT3, CLRNTRAMPERR|CLROSRAMPERR);
ahd_outb(ahd, CLRSINT1, CLRSELTIMEO|CLRATNO|CLRSCSIRSTI
|CLRBUSFREE|CLRSCSIPERR|CLRREQINIT);
ahd_outb(ahd, CLRSINT0, CLRSELDO|CLRSELDI|CLRSELINGO
|CLRIOERR|CLROVERRUN);
ahd_outb(ahd, CLRINT, CLRSCSIINT);
}
/**************************** Debugging Routines ******************************/
#ifdef AHD_DEBUG
uint32_t ahd_debug = AHD_DEBUG_OPTS;
#endif
#if 0
void
ahd_print_scb(struct scb *scb)
{
struct hardware_scb *hscb;
int i;
hscb = scb->hscb;
printk("scb:%p control:0x%x scsiid:0x%x lun:%d cdb_len:%d\n",
(void *)scb,
hscb->control,
hscb->scsiid,
hscb->lun,
hscb->cdb_len);
printk("Shared Data: ");
for (i = 0; i < sizeof(hscb->shared_data.idata.cdb); i++)
printk("%#02x", hscb->shared_data.idata.cdb[i]);
printk(" dataptr:%#x%x datacnt:%#x sgptr:%#x tag:%#x\n",
(uint32_t)((ahd_le64toh(hscb->dataptr) >> 32) & 0xFFFFFFFF),
(uint32_t)(ahd_le64toh(hscb->dataptr) & 0xFFFFFFFF),
ahd_le32toh(hscb->datacnt),
ahd_le32toh(hscb->sgptr),
SCB_GET_TAG(scb));
ahd_dump_sglist(scb);
}
#endif /* 0 */
/************************* Transfer Negotiation *******************************/
/*
* Allocate per target mode instance (ID we respond to as a target)
* transfer negotiation data structures.
*/
static struct ahd_tmode_tstate *
ahd_alloc_tstate(struct ahd_softc *ahd, u_int scsi_id, char channel)
{
struct ahd_tmode_tstate *master_tstate;
struct ahd_tmode_tstate *tstate;
int i;
master_tstate = ahd->enabled_targets[ahd->our_id];
if (ahd->enabled_targets[scsi_id] != NULL
&& ahd->enabled_targets[scsi_id] != master_tstate)
panic("%s: ahd_alloc_tstate - Target already allocated",
ahd_name(ahd));
tstate = kmalloc(sizeof(*tstate), GFP_ATOMIC);
if (tstate == NULL)
return (NULL);
/*
* If we have allocated a master tstate, copy user settings from
* the master tstate (taken from SRAM or the EEPROM) for this
* channel, but reset our current and goal settings to async/narrow
* until an initiator talks to us.
*/
if (master_tstate != NULL) {
memcpy(tstate, master_tstate, sizeof(*tstate));
memset(tstate->enabled_luns, 0, sizeof(tstate->enabled_luns));
for (i = 0; i < 16; i++) {
memset(&tstate->transinfo[i].curr, 0,
sizeof(tstate->transinfo[i].curr));
memset(&tstate->transinfo[i].goal, 0,
sizeof(tstate->transinfo[i].goal));
}
} else
memset(tstate, 0, sizeof(*tstate));
ahd->enabled_targets[scsi_id] = tstate;
return (tstate);
}
#ifdef AHD_TARGET_MODE
/*
* Free per target mode instance (ID we respond to as a target)
* transfer negotiation data structures.
*/
static void
ahd_free_tstate(struct ahd_softc *ahd, u_int scsi_id, char channel, int force)
{
struct ahd_tmode_tstate *tstate;
/*
* Don't clean up our "master" tstate.
* It has our default user settings.
*/
if (scsi_id == ahd->our_id
&& force == FALSE)
return;
tstate = ahd->enabled_targets[scsi_id];
kfree(tstate);
ahd->enabled_targets[scsi_id] = NULL;
}
#endif
/*
* Called when we have an active connection to a target on the bus,
* this function finds the nearest period to the input period limited
* by the capabilities of the bus connectivity of and sync settings for
* the target.
*/
static void
ahd_devlimited_syncrate(struct ahd_softc *ahd,
struct ahd_initiator_tinfo *tinfo,
u_int *period, u_int *ppr_options, role_t role)
{
struct ahd_transinfo *transinfo;
u_int maxsync;
if ((ahd_inb(ahd, SBLKCTL) & ENAB40) != 0
&& (ahd_inb(ahd, SSTAT2) & EXP_ACTIVE) == 0) {
maxsync = AHD_SYNCRATE_PACED;
} else {
maxsync = AHD_SYNCRATE_ULTRA;
/* Can't do DT related options on an SE bus */
*ppr_options &= MSG_EXT_PPR_QAS_REQ;
}
/*
* Never allow a value higher than our current goal
* period otherwise we may allow a target initiated
* negotiation to go above the limit as set by the
* user. In the case of an initiator initiated
* sync negotiation, we limit based on the user
* setting. This allows the system to still accept
* incoming negotiations even if target initiated
* negotiation is not performed.
*/
if (role == ROLE_TARGET)
transinfo = &tinfo->user;
else
transinfo = &tinfo->goal;
*ppr_options &= (transinfo->ppr_options|MSG_EXT_PPR_PCOMP_EN);
if (transinfo->width == MSG_EXT_WDTR_BUS_8_BIT) {
maxsync = max(maxsync, (u_int)AHD_SYNCRATE_ULTRA2);
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
}
if (transinfo->period == 0) {
*period = 0;
*ppr_options = 0;
} else {
*period = max(*period, (u_int)transinfo->period);
ahd_find_syncrate(ahd, period, ppr_options, maxsync);
}
}
/*
* Look up the valid period to SCSIRATE conversion in our table.
* Return the period and offset that should be sent to the target
* if this was the beginning of an SDTR.
*/
void
ahd_find_syncrate(struct ahd_softc *ahd, u_int *period,
u_int *ppr_options, u_int maxsync)
{
if (*period < maxsync)
*period = maxsync;
if ((*ppr_options & MSG_EXT_PPR_DT_REQ) != 0
&& *period > AHD_SYNCRATE_MIN_DT)
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
if (*period > AHD_SYNCRATE_MIN)
*period = 0;
/* Honor PPR option conformance rules. */
if (*period > AHD_SYNCRATE_PACED)
*ppr_options &= ~MSG_EXT_PPR_RTI;
if ((*ppr_options & MSG_EXT_PPR_IU_REQ) == 0)
*ppr_options &= (MSG_EXT_PPR_DT_REQ|MSG_EXT_PPR_QAS_REQ);
if ((*ppr_options & MSG_EXT_PPR_DT_REQ) == 0)
*ppr_options &= MSG_EXT_PPR_QAS_REQ;
/* Skip all PACED only entries if IU is not available */
if ((*ppr_options & MSG_EXT_PPR_IU_REQ) == 0
&& *period < AHD_SYNCRATE_DT)
*period = AHD_SYNCRATE_DT;
/* Skip all DT only entries if DT is not available */
if ((*ppr_options & MSG_EXT_PPR_DT_REQ) == 0
&& *period < AHD_SYNCRATE_ULTRA2)
*period = AHD_SYNCRATE_ULTRA2;
}
/*
* Truncate the given synchronous offset to a value the
* current adapter type and syncrate are capable of.
*/
static void
ahd_validate_offset(struct ahd_softc *ahd,
struct ahd_initiator_tinfo *tinfo,
u_int period, u_int *offset, int wide,
role_t role)
{
u_int maxoffset;
/* Limit offset to what we can do */
if (period == 0)
maxoffset = 0;
else if (period <= AHD_SYNCRATE_PACED) {
if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0)
maxoffset = MAX_OFFSET_PACED_BUG;
else
maxoffset = MAX_OFFSET_PACED;
} else
maxoffset = MAX_OFFSET_NON_PACED;
*offset = min(*offset, maxoffset);
if (tinfo != NULL) {
if (role == ROLE_TARGET)
*offset = min(*offset, (u_int)tinfo->user.offset);
else
*offset = min(*offset, (u_int)tinfo->goal.offset);
}
}
/*
* Truncate the given transfer width parameter to a value the
* current adapter type is capable of.
*/
static void
ahd_validate_width(struct ahd_softc *ahd, struct ahd_initiator_tinfo *tinfo,
u_int *bus_width, role_t role)
{
switch (*bus_width) {
default:
if (ahd->features & AHD_WIDE) {
/* Respond Wide */
*bus_width = MSG_EXT_WDTR_BUS_16_BIT;
break;
}
fallthrough;
case MSG_EXT_WDTR_BUS_8_BIT:
*bus_width = MSG_EXT_WDTR_BUS_8_BIT;
break;
}
if (tinfo != NULL) {
if (role == ROLE_TARGET)
*bus_width = min((u_int)tinfo->user.width, *bus_width);
else
*bus_width = min((u_int)tinfo->goal.width, *bus_width);
}
}
/*
* Update the bitmask of targets for which the controller should
* negotiate with at the next convenient opportunity. This currently
* means the next time we send the initial identify messages for
* a new transaction.
*/
int
ahd_update_neg_request(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
struct ahd_tmode_tstate *tstate,
struct ahd_initiator_tinfo *tinfo, ahd_neg_type neg_type)
{
u_int auto_negotiate_orig;
auto_negotiate_orig = tstate->auto_negotiate;
if (neg_type == AHD_NEG_ALWAYS) {
/*
* Force our "current" settings to be
* unknown so that unless a bus reset
* occurs the need to renegotiate is
* recorded persistently.
*/
if ((ahd->features & AHD_WIDE) != 0)
tinfo->curr.width = AHD_WIDTH_UNKNOWN;
tinfo->curr.period = AHD_PERIOD_UNKNOWN;
tinfo->curr.offset = AHD_OFFSET_UNKNOWN;
}
if (tinfo->curr.period != tinfo->goal.period
|| tinfo->curr.width != tinfo->goal.width
|| tinfo->curr.offset != tinfo->goal.offset
|| tinfo->curr.ppr_options != tinfo->goal.ppr_options
|| (neg_type == AHD_NEG_IF_NON_ASYNC
&& (tinfo->goal.offset != 0
|| tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT
|| tinfo->goal.ppr_options != 0)))
tstate->auto_negotiate |= devinfo->target_mask;
else
tstate->auto_negotiate &= ~devinfo->target_mask;
return (auto_negotiate_orig != tstate->auto_negotiate);
}
/*
* Update the user/goal/curr tables of synchronous negotiation
* parameters as well as, in the case of a current or active update,
* any data structures on the host controller. In the case of an
* active update, the specified target is currently talking to us on
* the bus, so the transfer parameter update must take effect
* immediately.
*/
void
ahd_set_syncrate(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
u_int period, u_int offset, u_int ppr_options,
u_int type, int paused)
{
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
u_int old_period;
u_int old_offset;
u_int old_ppr;
int active;
int update_needed;
active = (type & AHD_TRANS_ACTIVE) == AHD_TRANS_ACTIVE;
update_needed = 0;
if (period == 0 || offset == 0) {
period = 0;
offset = 0;
}
tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
if ((type & AHD_TRANS_USER) != 0) {
tinfo->user.period = period;
tinfo->user.offset = offset;
tinfo->user.ppr_options = ppr_options;
}
if ((type & AHD_TRANS_GOAL) != 0) {
tinfo->goal.period = period;
tinfo->goal.offset = offset;
tinfo->goal.ppr_options = ppr_options;
}
old_period = tinfo->curr.period;
old_offset = tinfo->curr.offset;
old_ppr = tinfo->curr.ppr_options;
if ((type & AHD_TRANS_CUR) != 0
&& (old_period != period
|| old_offset != offset
|| old_ppr != ppr_options)) {
update_needed++;
tinfo->curr.period = period;
tinfo->curr.offset = offset;
tinfo->curr.ppr_options = ppr_options;
ahd_send_async(ahd, devinfo->channel, devinfo->target,
CAM_LUN_WILDCARD, AC_TRANSFER_NEG);
if (bootverbose) {
if (offset != 0) {
int options;
printk("%s: target %d synchronous with "
"period = 0x%x, offset = 0x%x",
ahd_name(ahd), devinfo->target,
period, offset);
options = 0;
if ((ppr_options & MSG_EXT_PPR_RD_STRM) != 0) {
printk("(RDSTRM");
options++;
}
if ((ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
printk("%s", options ? "|DT" : "(DT");
options++;
}
if ((ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
printk("%s", options ? "|IU" : "(IU");
options++;
}
if ((ppr_options & MSG_EXT_PPR_RTI) != 0) {
printk("%s", options ? "|RTI" : "(RTI");
options++;
}
if ((ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
printk("%s", options ? "|QAS" : "(QAS");
options++;
}
if (options != 0)
printk(")\n");
else
printk("\n");
} else {
printk("%s: target %d using "
"asynchronous transfers%s\n",
ahd_name(ahd), devinfo->target,
(ppr_options & MSG_EXT_PPR_QAS_REQ) != 0
? "(QAS)" : "");
}
}
}
/*
* Always refresh the neg-table to handle the case of the
* sequencer setting the ENATNO bit for a MK_MESSAGE request.
* We will always renegotiate in that case if this is a
* packetized request. Also manage the busfree expected flag
* from this common routine so that we catch changes due to
* WDTR or SDTR messages.
*/
if ((type & AHD_TRANS_CUR) != 0) {
if (!paused)
ahd_pause(ahd);
ahd_update_neg_table(ahd, devinfo, &tinfo->curr);
if (!paused)
ahd_unpause(ahd);
if (ahd->msg_type != MSG_TYPE_NONE) {
if ((old_ppr & MSG_EXT_PPR_IU_REQ)
!= (ppr_options & MSG_EXT_PPR_IU_REQ)) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) {
ahd_print_devinfo(ahd, devinfo);
printk("Expecting IU Change busfree\n");
}
#endif
ahd->msg_flags |= MSG_FLAG_EXPECT_PPR_BUSFREE
| MSG_FLAG_IU_REQ_CHANGED;
}
if ((old_ppr & MSG_EXT_PPR_IU_REQ) != 0) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("PPR with IU_REQ outstanding\n");
#endif
ahd->msg_flags |= MSG_FLAG_EXPECT_PPR_BUSFREE;
}
}
}
update_needed += ahd_update_neg_request(ahd, devinfo, tstate,
tinfo, AHD_NEG_TO_GOAL);
if (update_needed && active)
ahd_update_pending_scbs(ahd);
}
/*
* Update the user/goal/curr tables of wide negotiation
* parameters as well as, in the case of a current or active update,
* any data structures on the host controller. In the case of an
* active update, the specified target is currently talking to us on
* the bus, so the transfer parameter update must take effect
* immediately.
*/
void
ahd_set_width(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
u_int width, u_int type, int paused)
{
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
u_int oldwidth;
int active;
int update_needed;
active = (type & AHD_TRANS_ACTIVE) == AHD_TRANS_ACTIVE;
update_needed = 0;
tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
if ((type & AHD_TRANS_USER) != 0)
tinfo->user.width = width;
if ((type & AHD_TRANS_GOAL) != 0)
tinfo->goal.width = width;
oldwidth = tinfo->curr.width;
if ((type & AHD_TRANS_CUR) != 0 && oldwidth != width) {
update_needed++;
tinfo->curr.width = width;
ahd_send_async(ahd, devinfo->channel, devinfo->target,
CAM_LUN_WILDCARD, AC_TRANSFER_NEG);
if (bootverbose) {
printk("%s: target %d using %dbit transfers\n",
ahd_name(ahd), devinfo->target,
8 * (0x01 << width));
}
}
if ((type & AHD_TRANS_CUR) != 0) {
if (!paused)
ahd_pause(ahd);
ahd_update_neg_table(ahd, devinfo, &tinfo->curr);
if (!paused)
ahd_unpause(ahd);
}
update_needed += ahd_update_neg_request(ahd, devinfo, tstate,
tinfo, AHD_NEG_TO_GOAL);
if (update_needed && active)
ahd_update_pending_scbs(ahd);
}
/*
* Update the current state of tagged queuing for a given target.
*/
static void
ahd_set_tags(struct ahd_softc *ahd, struct scsi_cmnd *cmd,
struct ahd_devinfo *devinfo, ahd_queue_alg alg)
{
struct scsi_device *sdev = cmd->device;
ahd_platform_set_tags(ahd, sdev, devinfo, alg);
ahd_send_async(ahd, devinfo->channel, devinfo->target,
devinfo->lun, AC_TRANSFER_NEG);
}
static void
ahd_update_neg_table(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
struct ahd_transinfo *tinfo)
{
ahd_mode_state saved_modes;
u_int period;
u_int ppr_opts;
u_int con_opts;
u_int offset;
u_int saved_negoaddr;
uint8_t iocell_opts[sizeof(ahd->iocell_opts)];
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
saved_negoaddr = ahd_inb(ahd, NEGOADDR);
ahd_outb(ahd, NEGOADDR, devinfo->target);
period = tinfo->period;
offset = tinfo->offset;
memcpy(iocell_opts, ahd->iocell_opts, sizeof(ahd->iocell_opts));
ppr_opts = tinfo->ppr_options & (MSG_EXT_PPR_QAS_REQ|MSG_EXT_PPR_DT_REQ
|MSG_EXT_PPR_IU_REQ|MSG_EXT_PPR_RTI);
con_opts = 0;
if (period == 0)
period = AHD_SYNCRATE_ASYNC;
if (period == AHD_SYNCRATE_160) {
if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0) {
/*
* When the SPI4 spec was finalized, PACE transfers
* was not made a configurable option in the PPR
* message. Instead it is assumed to be enabled for
* any syncrate faster than 80MHz. Nevertheless,
* Harpoon2A4 allows this to be configurable.
*
* Harpoon2A4 also assumes at most 2 data bytes per
* negotiated REQ/ACK offset. Paced transfers take
* 4, so we must adjust our offset.
*/
ppr_opts |= PPROPT_PACE;
offset *= 2;
/*
* Harpoon2A assumed that there would be a
* fallback rate between 160MHz and 80MHz,
* so 7 is used as the period factor rather
* than 8 for 160MHz.
*/
period = AHD_SYNCRATE_REVA_160;
}
if ((tinfo->ppr_options & MSG_EXT_PPR_PCOMP_EN) == 0)
iocell_opts[AHD_PRECOMP_SLEW_INDEX] &=
~AHD_PRECOMP_MASK;
} else {
/*
* Precomp should be disabled for non-paced transfers.
*/
iocell_opts[AHD_PRECOMP_SLEW_INDEX] &= ~AHD_PRECOMP_MASK;
if ((ahd->features & AHD_NEW_IOCELL_OPTS) != 0
&& (ppr_opts & MSG_EXT_PPR_DT_REQ) != 0
&& (ppr_opts & MSG_EXT_PPR_IU_REQ) == 0) {
/*
* Slow down our CRC interval to be
* compatible with non-packetized
* U160 devices that can't handle a
* CRC at full speed.
*/
con_opts |= ENSLOWCRC;
}
if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0) {
/*
* On H2A4, revert to a slower slewrate
* on non-paced transfers.
*/
iocell_opts[AHD_PRECOMP_SLEW_INDEX] &=
~AHD_SLEWRATE_MASK;
}
}
ahd_outb(ahd, ANNEXCOL, AHD_ANNEXCOL_PRECOMP_SLEW);
ahd_outb(ahd, ANNEXDAT, iocell_opts[AHD_PRECOMP_SLEW_INDEX]);
ahd_outb(ahd, ANNEXCOL, AHD_ANNEXCOL_AMPLITUDE);
ahd_outb(ahd, ANNEXDAT, iocell_opts[AHD_AMPLITUDE_INDEX]);
ahd_outb(ahd, NEGPERIOD, period);
ahd_outb(ahd, NEGPPROPTS, ppr_opts);
ahd_outb(ahd, NEGOFFSET, offset);
if (tinfo->width == MSG_EXT_WDTR_BUS_16_BIT)
con_opts |= WIDEXFER;
/*
* Slow down our CRC interval to be
* compatible with packetized U320 devices
* that can't handle a CRC at full speed
*/
if (ahd->features & AHD_AIC79XXB_SLOWCRC) {
con_opts |= ENSLOWCRC;
}
/*
* During packetized transfers, the target will
* give us the opportunity to send command packets
* without us asserting attention.
*/
if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) == 0)
con_opts |= ENAUTOATNO;
ahd_outb(ahd, NEGCONOPTS, con_opts);
ahd_outb(ahd, NEGOADDR, saved_negoaddr);
ahd_restore_modes(ahd, saved_modes);
}
/*
* When the transfer settings for a connection change, setup for
* negotiation in pending SCBs to effect the change as quickly as
* possible. We also cancel any negotiations that are scheduled
* for inflight SCBs that have not been started yet.
*/
static void
ahd_update_pending_scbs(struct ahd_softc *ahd)
{
struct scb *pending_scb;
int pending_scb_count;
int paused;
u_int saved_scbptr;
ahd_mode_state saved_modes;
/*
* Traverse the pending SCB list and ensure that all of the
* SCBs there have the proper settings. We can only safely
* clear the negotiation required flag (setting requires the
* execution queue to be modified) and this is only possible
* if we are not already attempting to select out for this
* SCB. For this reason, all callers only call this routine
* if we are changing the negotiation settings for the currently
* active transaction on the bus.
*/
pending_scb_count = 0;
LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
struct ahd_devinfo devinfo;
struct ahd_tmode_tstate *tstate;
ahd_scb_devinfo(ahd, &devinfo, pending_scb);
ahd_fetch_transinfo(ahd, devinfo.channel, devinfo.our_scsiid,
devinfo.target, &tstate);
if ((tstate->auto_negotiate & devinfo.target_mask) == 0
&& (pending_scb->flags & SCB_AUTO_NEGOTIATE) != 0) {
pending_scb->flags &= ~SCB_AUTO_NEGOTIATE;
pending_scb->hscb->control &= ~MK_MESSAGE;
}
ahd_sync_scb(ahd, pending_scb,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
pending_scb_count++;
}
if (pending_scb_count == 0)
return;
if (ahd_is_paused(ahd)) {
paused = 1;
} else {
paused = 0;
ahd_pause(ahd);
}
/*
* Force the sequencer to reinitialize the selection for
* the command at the head of the execution queue if it
* has already been setup. The negotiation changes may
* effect whether we select-out with ATN. It is only
* safe to clear ENSELO when the bus is not free and no
* selection is in progres or completed.
*/
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
if ((ahd_inb(ahd, SCSISIGI) & BSYI) != 0
&& (ahd_inb(ahd, SSTAT0) & (SELDO|SELINGO)) == 0)
ahd_outb(ahd, SCSISEQ0, ahd_inb(ahd, SCSISEQ0) & ~ENSELO);
saved_scbptr = ahd_get_scbptr(ahd);
/* Ensure that the hscbs down on the card match the new information */
LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
u_int scb_tag;
u_int control;
scb_tag = SCB_GET_TAG(pending_scb);
ahd_set_scbptr(ahd, scb_tag);
control = ahd_inb_scbram(ahd, SCB_CONTROL);
control &= ~MK_MESSAGE;
control |= pending_scb->hscb->control & MK_MESSAGE;
ahd_outb(ahd, SCB_CONTROL, control);
}
ahd_set_scbptr(ahd, saved_scbptr);
ahd_restore_modes(ahd, saved_modes);
if (paused == 0)
ahd_unpause(ahd);
}
/**************************** Pathing Information *****************************/
static void
ahd_fetch_devinfo(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
{
ahd_mode_state saved_modes;
u_int saved_scsiid;
role_t role;
int our_id;
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
if (ahd_inb(ahd, SSTAT0) & TARGET)
role = ROLE_TARGET;
else
role = ROLE_INITIATOR;
if (role == ROLE_TARGET
&& (ahd_inb(ahd, SEQ_FLAGS) & CMDPHASE_PENDING) != 0) {
/* We were selected, so pull our id from TARGIDIN */
our_id = ahd_inb(ahd, TARGIDIN) & OID;
} else if (role == ROLE_TARGET)
our_id = ahd_inb(ahd, TOWNID);
else
our_id = ahd_inb(ahd, IOWNID);
saved_scsiid = ahd_inb(ahd, SAVED_SCSIID);
ahd_compile_devinfo(devinfo,
our_id,
SCSIID_TARGET(ahd, saved_scsiid),
ahd_inb(ahd, SAVED_LUN),
SCSIID_CHANNEL(ahd, saved_scsiid),
role);
ahd_restore_modes(ahd, saved_modes);
}
void
ahd_print_devinfo(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
{
printk("%s:%c:%d:%d: ", ahd_name(ahd), 'A',
devinfo->target, devinfo->lun);
}
static const struct ahd_phase_table_entry*
ahd_lookup_phase_entry(int phase)
{
const struct ahd_phase_table_entry *entry;
const struct ahd_phase_table_entry *last_entry;
/*
* num_phases doesn't include the default entry which
* will be returned if the phase doesn't match.
*/
last_entry = &ahd_phase_table[num_phases];
for (entry = ahd_phase_table; entry < last_entry; entry++) {
if (phase == entry->phase)
break;
}
return (entry);
}
void
ahd_compile_devinfo(struct ahd_devinfo *devinfo, u_int our_id, u_int target,
u_int lun, char channel, role_t role)
{
devinfo->our_scsiid = our_id;
devinfo->target = target;
devinfo->lun = lun;
devinfo->target_offset = target;
devinfo->channel = channel;
devinfo->role = role;
if (channel == 'B')
devinfo->target_offset += 8;
devinfo->target_mask = (0x01 << devinfo->target_offset);
}
static void
ahd_scb_devinfo(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
struct scb *scb)
{
role_t role;
int our_id;
our_id = SCSIID_OUR_ID(scb->hscb->scsiid);
role = ROLE_INITIATOR;
if ((scb->hscb->control & TARGET_SCB) != 0)
role = ROLE_TARGET;
ahd_compile_devinfo(devinfo, our_id, SCB_GET_TARGET(ahd, scb),
SCB_GET_LUN(scb), SCB_GET_CHANNEL(ahd, scb), role);
}
/************************ Message Phase Processing ****************************/
/*
* When an initiator transaction with the MK_MESSAGE flag either reconnects
* or enters the initial message out phase, we are interrupted. Fill our
* outgoing message buffer with the appropriate message and beging handing
* the message phase(s) manually.
*/
static void
ahd_setup_initiator_msgout(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
struct scb *scb)
{
/*
* To facilitate adding multiple messages together,
* each routine should increment the index and len
* variables instead of setting them explicitly.
*/
ahd->msgout_index = 0;
ahd->msgout_len = 0;
if (ahd_currently_packetized(ahd))
ahd->msg_flags |= MSG_FLAG_PACKETIZED;
if (ahd->send_msg_perror
&& ahd_inb(ahd, MSG_OUT) == HOST_MSG) {
ahd->msgout_buf[ahd->msgout_index++] = ahd->send_msg_perror;
ahd->msgout_len++;
ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("Setting up for Parity Error delivery\n");
#endif
return;
} else if (scb == NULL) {
printk("%s: WARNING. No pending message for "
"I_T msgin. Issuing NO-OP\n", ahd_name(ahd));
ahd->msgout_buf[ahd->msgout_index++] = NOP;
ahd->msgout_len++;
ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
return;
}
if ((scb->flags & SCB_DEVICE_RESET) == 0
&& (scb->flags & SCB_PACKETIZED) == 0
&& ahd_inb(ahd, MSG_OUT) == MSG_IDENTIFYFLAG) {
u_int identify_msg;
identify_msg = MSG_IDENTIFYFLAG | SCB_GET_LUN(scb);
if ((scb->hscb->control & DISCENB) != 0)
identify_msg |= MSG_IDENTIFY_DISCFLAG;
ahd->msgout_buf[ahd->msgout_index++] = identify_msg;
ahd->msgout_len++;
if ((scb->hscb->control & TAG_ENB) != 0) {
ahd->msgout_buf[ahd->msgout_index++] =
scb->hscb->control & (TAG_ENB|SCB_TAG_TYPE);
ahd->msgout_buf[ahd->msgout_index++] = SCB_GET_TAG(scb);
ahd->msgout_len += 2;
}
}
if (scb->flags & SCB_DEVICE_RESET) {
ahd->msgout_buf[ahd->msgout_index++] = TARGET_RESET;
ahd->msgout_len++;
ahd_print_path(ahd, scb);
printk("Bus Device Reset Message Sent\n");
/*
* Clear our selection hardware in advance of
* the busfree. We may have an entry in the waiting
* Q for this target, and we don't want to go about
* selecting while we handle the busfree and blow it
* away.
*/
ahd_outb(ahd, SCSISEQ0, 0);
} else if ((scb->flags & SCB_ABORT) != 0) {
if ((scb->hscb->control & TAG_ENB) != 0) {
ahd->msgout_buf[ahd->msgout_index++] = ABORT_TASK;
} else {
ahd->msgout_buf[ahd->msgout_index++] = ABORT_TASK_SET;
}
ahd->msgout_len++;
ahd_print_path(ahd, scb);
printk("Abort%s Message Sent\n",
(scb->hscb->control & TAG_ENB) != 0 ? " Tag" : "");
/*
* Clear our selection hardware in advance of
* the busfree. We may have an entry in the waiting
* Q for this target, and we don't want to go about
* selecting while we handle the busfree and blow it
* away.
*/
ahd_outb(ahd, SCSISEQ0, 0);
} else if ((scb->flags & (SCB_AUTO_NEGOTIATE|SCB_NEGOTIATE)) != 0) {
ahd_build_transfer_msg(ahd, devinfo);
/*
* Clear our selection hardware in advance of potential
* PPR IU status change busfree. We may have an entry in
* the waiting Q for this target, and we don't want to go
* about selecting while we handle the busfree and blow
* it away.
*/
ahd_outb(ahd, SCSISEQ0, 0);
} else {
printk("ahd_intr: AWAITING_MSG for an SCB that "
"does not have a waiting message\n");
printk("SCSIID = %x, target_mask = %x\n", scb->hscb->scsiid,
devinfo->target_mask);
panic("SCB = %d, SCB Control = %x:%x, MSG_OUT = %x "
"SCB flags = %x", SCB_GET_TAG(scb), scb->hscb->control,
ahd_inb_scbram(ahd, SCB_CONTROL), ahd_inb(ahd, MSG_OUT),
scb->flags);
}
/*
* Clear the MK_MESSAGE flag from the SCB so we aren't
* asked to send this message again.
*/
ahd_outb(ahd, SCB_CONTROL,
ahd_inb_scbram(ahd, SCB_CONTROL) & ~MK_MESSAGE);
scb->hscb->control &= ~MK_MESSAGE;
ahd->msgout_index = 0;
ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
}
/*
* Build an appropriate transfer negotiation message for the
* currently active target.
*/
static void
ahd_build_transfer_msg(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
{
/*
* We need to initiate transfer negotiations.
* If our current and goal settings are identical,
* we want to renegotiate due to a check condition.
*/
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
int dowide;
int dosync;
int doppr;
u_int period;
u_int ppr_options;
u_int offset;
tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
/*
* Filter our period based on the current connection.
* If we can't perform DT transfers on this segment (not in LVD
* mode for instance), then our decision to issue a PPR message
* may change.
*/
period = tinfo->goal.period;
offset = tinfo->goal.offset;
ppr_options = tinfo->goal.ppr_options;
/* Target initiated PPR is not allowed in the SCSI spec */
if (devinfo->role == ROLE_TARGET)
ppr_options = 0;
ahd_devlimited_syncrate(ahd, tinfo, &period,
&ppr_options, devinfo->role);
dowide = tinfo->curr.width != tinfo->goal.width;
dosync = tinfo->curr.offset != offset || tinfo->curr.period != period;
/*
* Only use PPR if we have options that need it, even if the device
* claims to support it. There might be an expander in the way
* that doesn't.
*/
doppr = ppr_options != 0;
if (!dowide && !dosync && !doppr) {
dowide = tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT;
dosync = tinfo->goal.offset != 0;
}
if (!dowide && !dosync && !doppr) {
/*
* Force async with a WDTR message if we have a wide bus,
* or just issue an SDTR with a 0 offset.
*/
if ((ahd->features & AHD_WIDE) != 0)
dowide = 1;
else
dosync = 1;
if (bootverbose) {
ahd_print_devinfo(ahd, devinfo);
printk("Ensuring async\n");
}
}
/* Target initiated PPR is not allowed in the SCSI spec */
if (devinfo->role == ROLE_TARGET)
doppr = 0;
/*
* Both the PPR message and SDTR message require the
* goal syncrate to be limited to what the target device
* is capable of handling (based on whether an LVD->SE
* expander is on the bus), so combine these two cases.
* Regardless, guarantee that if we are using WDTR and SDTR
* messages that WDTR comes first.
*/
if (doppr || (dosync && !dowide)) {
offset = tinfo->goal.offset;
ahd_validate_offset(ahd, tinfo, period, &offset,
doppr ? tinfo->goal.width
: tinfo->curr.width,
devinfo->role);
if (doppr) {
ahd_construct_ppr(ahd, devinfo, period, offset,
tinfo->goal.width, ppr_options);
} else {
ahd_construct_sdtr(ahd, devinfo, period, offset);
}
} else {
ahd_construct_wdtr(ahd, devinfo, tinfo->goal.width);
}
}
/*
* Build a synchronous negotiation message in our message
* buffer based on the input parameters.
*/
static void
ahd_construct_sdtr(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
u_int period, u_int offset)
{
if (offset == 0)
period = AHD_ASYNC_XFER_PERIOD;
ahd->msgout_index += spi_populate_sync_msg(
ahd->msgout_buf + ahd->msgout_index, period, offset);
ahd->msgout_len += 5;
if (bootverbose) {
printk("(%s:%c:%d:%d): Sending SDTR period %x, offset %x\n",
ahd_name(ahd), devinfo->channel, devinfo->target,
devinfo->lun, period, offset);
}
}
/*
* Build a wide negotiateion message in our message
* buffer based on the input parameters.
*/
static void
ahd_construct_wdtr(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
u_int bus_width)
{
ahd->msgout_index += spi_populate_width_msg(
ahd->msgout_buf + ahd->msgout_index, bus_width);
ahd->msgout_len += 4;
if (bootverbose) {
printk("(%s:%c:%d:%d): Sending WDTR %x\n",
ahd_name(ahd), devinfo->channel, devinfo->target,
devinfo->lun, bus_width);
}
}
/*
* Build a parallel protocol request message in our message
* buffer based on the input parameters.
*/
static void
ahd_construct_ppr(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
u_int period, u_int offset, u_int bus_width,
u_int ppr_options)
{
/*
* Always request precompensation from
* the other target if we are running
* at paced syncrates.
*/
if (period <= AHD_SYNCRATE_PACED)
ppr_options |= MSG_EXT_PPR_PCOMP_EN;
if (offset == 0)
period = AHD_ASYNC_XFER_PERIOD;
ahd->msgout_index += spi_populate_ppr_msg(
ahd->msgout_buf + ahd->msgout_index, period, offset,
bus_width, ppr_options);
ahd->msgout_len += 8;
if (bootverbose) {
printk("(%s:%c:%d:%d): Sending PPR bus_width %x, period %x, "
"offset %x, ppr_options %x\n", ahd_name(ahd),
devinfo->channel, devinfo->target, devinfo->lun,
bus_width, period, offset, ppr_options);
}
}
/*
* Clear any active message state.
*/
static void
ahd_clear_msg_state(struct ahd_softc *ahd)
{
ahd_mode_state saved_modes;
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd->send_msg_perror = 0;
ahd->msg_flags = MSG_FLAG_NONE;
ahd->msgout_len = 0;
ahd->msgin_index = 0;
ahd->msg_type = MSG_TYPE_NONE;
if ((ahd_inb(ahd, SCSISIGO) & ATNO) != 0) {
/*
* The target didn't care to respond to our
* message request, so clear ATN.
*/
ahd_outb(ahd, CLRSINT1, CLRATNO);
}
ahd_outb(ahd, MSG_OUT, NOP);
ahd_outb(ahd, SEQ_FLAGS2,
ahd_inb(ahd, SEQ_FLAGS2) & ~TARGET_MSG_PENDING);
ahd_restore_modes(ahd, saved_modes);
}
/*
* Manual message loop handler.
*/
static void
ahd_handle_message_phase(struct ahd_softc *ahd)
{
struct ahd_devinfo devinfo;
u_int bus_phase;
int end_session;
ahd_fetch_devinfo(ahd, &devinfo);
end_session = FALSE;
bus_phase = ahd_inb(ahd, LASTPHASE);
if ((ahd_inb(ahd, LQISTAT2) & LQIPHASE_OUTPKT) != 0) {
printk("LQIRETRY for LQIPHASE_OUTPKT\n");
ahd_outb(ahd, LQCTL2, LQIRETRY);
}
reswitch:
switch (ahd->msg_type) {
case MSG_TYPE_INITIATOR_MSGOUT:
{
int lastbyte;
int phasemis;
int msgdone;
if (ahd->msgout_len == 0 && ahd->send_msg_perror == 0)
panic("HOST_MSG_LOOP interrupt with no active message");
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) {
ahd_print_devinfo(ahd, &devinfo);
printk("INITIATOR_MSG_OUT");
}
#endif
phasemis = bus_phase != P_MESGOUT;
if (phasemis) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) {
printk(" PHASEMIS %s\n",
ahd_lookup_phase_entry(bus_phase)
->phasemsg);
}
#endif
if (bus_phase == P_MESGIN) {
/*
* Change gears and see if
* this messages is of interest to
* us or should be passed back to
* the sequencer.
*/
ahd_outb(ahd, CLRSINT1, CLRATNO);
ahd->send_msg_perror = 0;
ahd->msg_type = MSG_TYPE_INITIATOR_MSGIN;
ahd->msgin_index = 0;
goto reswitch;
}
end_session = TRUE;
break;
}
if (ahd->send_msg_perror) {
ahd_outb(ahd, CLRSINT1, CLRATNO);
ahd_outb(ahd, CLRSINT1, CLRREQINIT);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk(" byte 0x%x\n", ahd->send_msg_perror);
#endif
/*
* If we are notifying the target of a CRC error
* during packetized operations, the target is
* within its rights to acknowledge our message
* with a busfree.
*/
if ((ahd->msg_flags & MSG_FLAG_PACKETIZED) != 0
&& ahd->send_msg_perror == INITIATOR_ERROR)
ahd->msg_flags |= MSG_FLAG_EXPECT_IDE_BUSFREE;
ahd_outb(ahd, RETURN_2, ahd->send_msg_perror);
ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_WRITE);
break;
}
msgdone = ahd->msgout_index == ahd->msgout_len;
if (msgdone) {
/*
* The target has requested a retry.
* Re-assert ATN, reset our message index to
* 0, and try again.
*/
ahd->msgout_index = 0;
ahd_assert_atn(ahd);
}
lastbyte = ahd->msgout_index == (ahd->msgout_len - 1);
if (lastbyte) {
/* Last byte is signified by dropping ATN */
ahd_outb(ahd, CLRSINT1, CLRATNO);
}
/*
* Clear our interrupt status and present
* the next byte on the bus.
*/
ahd_outb(ahd, CLRSINT1, CLRREQINIT);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk(" byte 0x%x\n",
ahd->msgout_buf[ahd->msgout_index]);
#endif
ahd_outb(ahd, RETURN_2, ahd->msgout_buf[ahd->msgout_index++]);
ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_WRITE);
break;
}
case MSG_TYPE_INITIATOR_MSGIN:
{
int phasemis;
int message_done;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) {
ahd_print_devinfo(ahd, &devinfo);
printk("INITIATOR_MSG_IN");
}
#endif
phasemis = bus_phase != P_MESGIN;
if (phasemis) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) {
printk(" PHASEMIS %s\n",
ahd_lookup_phase_entry(bus_phase)
->phasemsg);
}
#endif
ahd->msgin_index = 0;
if (bus_phase == P_MESGOUT
&& (ahd->send_msg_perror != 0
|| (ahd->msgout_len != 0
&& ahd->msgout_index == 0))) {
ahd->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
goto reswitch;
}
end_session = TRUE;
break;
}
/* Pull the byte in without acking it */
ahd->msgin_buf[ahd->msgin_index] = ahd_inb(ahd, SCSIBUS);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk(" byte 0x%x\n",
ahd->msgin_buf[ahd->msgin_index]);
#endif
message_done = ahd_parse_msg(ahd, &devinfo);
if (message_done) {
/*
* Clear our incoming message buffer in case there
* is another message following this one.
*/
ahd->msgin_index = 0;
/*
* If this message illicited a response,
* assert ATN so the target takes us to the
* message out phase.
*/
if (ahd->msgout_len != 0) {
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0) {
ahd_print_devinfo(ahd, &devinfo);
printk("Asserting ATN for response\n");
}
#endif
ahd_assert_atn(ahd);
}
} else
ahd->msgin_index++;
if (message_done == MSGLOOP_TERMINATED) {
end_session = TRUE;
} else {
/* Ack the byte */
ahd_outb(ahd, CLRSINT1, CLRREQINIT);
ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_READ);
}
break;
}
case MSG_TYPE_TARGET_MSGIN:
{
int msgdone;
int msgout_request;
/*
* By default, the message loop will continue.
*/
ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
if (ahd->msgout_len == 0)
panic("Target MSGIN with no active message");
/*
* If we interrupted a mesgout session, the initiator
* will not know this until our first REQ. So, we
* only honor mesgout requests after we've sent our
* first byte.
*/
if ((ahd_inb(ahd, SCSISIGI) & ATNI) != 0
&& ahd->msgout_index > 0)
msgout_request = TRUE;
else
msgout_request = FALSE;
if (msgout_request) {
/*
* Change gears and see if
* this messages is of interest to
* us or should be passed back to
* the sequencer.
*/
ahd->msg_type = MSG_TYPE_TARGET_MSGOUT;
ahd_outb(ahd, SCSISIGO, P_MESGOUT | BSYO);
ahd->msgin_index = 0;
/* Dummy read to REQ for first byte */
ahd_inb(ahd, SCSIDAT);
ahd_outb(ahd, SXFRCTL0,
ahd_inb(ahd, SXFRCTL0) | SPIOEN);
break;
}
msgdone = ahd->msgout_index == ahd->msgout_len;
if (msgdone) {
ahd_outb(ahd, SXFRCTL0,
ahd_inb(ahd, SXFRCTL0) & ~SPIOEN);
end_session = TRUE;
break;
}
/*
* Present the next byte on the bus.
*/
ahd_outb(ahd, SXFRCTL0, ahd_inb(ahd, SXFRCTL0) | SPIOEN);
ahd_outb(ahd, SCSIDAT, ahd->msgout_buf[ahd->msgout_index++]);
break;
}
case MSG_TYPE_TARGET_MSGOUT:
{
int lastbyte;
int msgdone;
/*
* By default, the message loop will continue.
*/
ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
/*
* The initiator signals that this is
* the last byte by dropping ATN.
*/
lastbyte = (ahd_inb(ahd, SCSISIGI) & ATNI) == 0;
/*
* Read the latched byte, but turn off SPIOEN first
* so that we don't inadvertently cause a REQ for the
* next byte.
*/
ahd_outb(ahd, SXFRCTL0, ahd_inb(ahd, SXFRCTL0) & ~SPIOEN);
ahd->msgin_buf[ahd->msgin_index] = ahd_inb(ahd, SCSIDAT);
msgdone = ahd_parse_msg(ahd, &devinfo);
if (msgdone == MSGLOOP_TERMINATED) {
/*
* The message is *really* done in that it caused
* us to go to bus free. The sequencer has already
* been reset at this point, so pull the ejection
* handle.
*/
return;
}
ahd->msgin_index++;
/*
* XXX Read spec about initiator dropping ATN too soon
* and use msgdone to detect it.
*/
if (msgdone == MSGLOOP_MSGCOMPLETE) {
ahd->msgin_index = 0;
/*
* If this message illicited a response, transition
* to the Message in phase and send it.
*/
if (ahd->msgout_len != 0) {
ahd_outb(ahd, SCSISIGO, P_MESGIN | BSYO);
ahd_outb(ahd, SXFRCTL0,
ahd_inb(ahd, SXFRCTL0) | SPIOEN);
ahd->msg_type = MSG_TYPE_TARGET_MSGIN;
ahd->msgin_index = 0;
break;
}
}
if (lastbyte)
end_session = TRUE;
else {
/* Ask for the next byte. */
ahd_outb(ahd, SXFRCTL0,
ahd_inb(ahd, SXFRCTL0) | SPIOEN);
}
break;
}
default:
panic("Unknown REQINIT message type");
}
if (end_session) {
if ((ahd->msg_flags & MSG_FLAG_PACKETIZED) != 0) {
printk("%s: Returning to Idle Loop\n",
ahd_name(ahd));
ahd_clear_msg_state(ahd);
/*
* Perform the equivalent of a clear_target_state.
*/
ahd_outb(ahd, LASTPHASE, P_BUSFREE);
ahd_outb(ahd, SEQ_FLAGS, NOT_IDENTIFIED|NO_CDB_SENT);
ahd_outb(ahd, SEQCTL0, FASTMODE|SEQRESET);
} else {
ahd_clear_msg_state(ahd);
ahd_outb(ahd, RETURN_1, EXIT_MSG_LOOP);
}
}
}
/*
* See if we sent a particular extended message to the target.
* If "full" is true, return true only if the target saw the full
* message. If "full" is false, return true if the target saw at
* least the first byte of the message.
*/
static int
ahd_sent_msg(struct ahd_softc *ahd, ahd_msgtype type, u_int msgval, int full)
{
int found;
u_int index;
found = FALSE;
index = 0;
while (index < ahd->msgout_len) {
if (ahd->msgout_buf[index] == EXTENDED_MESSAGE) {
u_int end_index;
end_index = index + 1 + ahd->msgout_buf[index + 1];
if (ahd->msgout_buf[index+2] == msgval
&& type == AHDMSG_EXT) {
if (full) {
if (ahd->msgout_index > end_index)
found = TRUE;
} else if (ahd->msgout_index > index)
found = TRUE;
}
index = end_index;
} else if (ahd->msgout_buf[index] >= SIMPLE_QUEUE_TAG
&& ahd->msgout_buf[index] <= IGNORE_WIDE_RESIDUE) {
/* Skip tag type and tag id or residue param*/
index += 2;
} else {
/* Single byte message */
if (type == AHDMSG_1B
&& ahd->msgout_index > index
&& (ahd->msgout_buf[index] == msgval
|| ((ahd->msgout_buf[index] & MSG_IDENTIFYFLAG) != 0
&& msgval == MSG_IDENTIFYFLAG)))
found = TRUE;
index++;
}
if (found)
break;
}
return (found);
}
/*
* Wait for a complete incoming message, parse it, and respond accordingly.
*/
static int
ahd_parse_msg(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
{
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
int reject;
int done;
int response;
done = MSGLOOP_IN_PROG;
response = FALSE;
reject = FALSE;
tinfo = ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
/*
* Parse as much of the message as is available,
* rejecting it if we don't support it. When
* the entire message is available and has been
* handled, return MSGLOOP_MSGCOMPLETE, indicating
* that we have parsed an entire message.
*
* In the case of extended messages, we accept the length
* byte outright and perform more checking once we know the
* extended message type.
*/
switch (ahd->msgin_buf[0]) {
case DISCONNECT:
case SAVE_POINTERS:
case COMMAND_COMPLETE:
case RESTORE_POINTERS:
case IGNORE_WIDE_RESIDUE:
/*
* End our message loop as these are messages
* the sequencer handles on its own.
*/
done = MSGLOOP_TERMINATED;
break;
case MESSAGE_REJECT:
response = ahd_handle_msg_reject(ahd, devinfo);
fallthrough;
case NOP:
done = MSGLOOP_MSGCOMPLETE;
break;
case EXTENDED_MESSAGE:
{
/* Wait for enough of the message to begin validation */
if (ahd->msgin_index < 2)
break;
switch (ahd->msgin_buf[2]) {
case EXTENDED_SDTR:
{
u_int period;
u_int ppr_options;
u_int offset;
u_int saved_offset;
if (ahd->msgin_buf[1] != MSG_EXT_SDTR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have both args before validating
* and acting on this message.
*
* Add one to MSG_EXT_SDTR_LEN to account for
* the extended message preamble.
*/
if (ahd->msgin_index < (MSG_EXT_SDTR_LEN + 1))
break;
period = ahd->msgin_buf[3];
ppr_options = 0;
saved_offset = offset = ahd->msgin_buf[4];
ahd_devlimited_syncrate(ahd, tinfo, &period,
&ppr_options, devinfo->role);
ahd_validate_offset(ahd, tinfo, period, &offset,
tinfo->curr.width, devinfo->role);
if (bootverbose) {
printk("(%s:%c:%d:%d): Received "
"SDTR period %x, offset %x\n\t"
"Filtered to period %x, offset %x\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun,
ahd->msgin_buf[3], saved_offset,
period, offset);
}
ahd_set_syncrate(ahd, devinfo, period,
offset, ppr_options,
AHD_TRANS_ACTIVE|AHD_TRANS_GOAL,
/*paused*/TRUE);
/*
* See if we initiated Sync Negotiation
* and didn't have to fall down to async
* transfers.
*/
if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_SDTR, TRUE)) {
/* We started it */
if (saved_offset != offset) {
/* Went too low - force async */
reject = TRUE;
}
} else {
/*
* Send our own SDTR in reply
*/
if (bootverbose
&& devinfo->role == ROLE_INITIATOR) {
printk("(%s:%c:%d:%d): Target "
"Initiated SDTR\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun);
}
ahd->msgout_index = 0;
ahd->msgout_len = 0;
ahd_construct_sdtr(ahd, devinfo,
period, offset);
ahd->msgout_index = 0;
response = TRUE;
}
done = MSGLOOP_MSGCOMPLETE;
break;
}
case EXTENDED_WDTR:
{
u_int bus_width;
u_int saved_width;
u_int sending_reply;
sending_reply = FALSE;
if (ahd->msgin_buf[1] != MSG_EXT_WDTR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have our arg before validating
* and acting on this message.
*
* Add one to MSG_EXT_WDTR_LEN to account for
* the extended message preamble.
*/
if (ahd->msgin_index < (MSG_EXT_WDTR_LEN + 1))
break;
bus_width = ahd->msgin_buf[3];
saved_width = bus_width;
ahd_validate_width(ahd, tinfo, &bus_width,
devinfo->role);
if (bootverbose) {
printk("(%s:%c:%d:%d): Received WDTR "
"%x filtered to %x\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun,
saved_width, bus_width);
}
if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_WDTR, TRUE)) {
/*
* Don't send a WDTR back to the
* target, since we asked first.
* If the width went higher than our
* request, reject it.
*/
if (saved_width > bus_width) {
reject = TRUE;
printk("(%s:%c:%d:%d): requested %dBit "
"transfers. Rejecting...\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun,
8 * (0x01 << bus_width));
bus_width = 0;
}
} else {
/*
* Send our own WDTR in reply
*/
if (bootverbose
&& devinfo->role == ROLE_INITIATOR) {
printk("(%s:%c:%d:%d): Target "
"Initiated WDTR\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun);
}
ahd->msgout_index = 0;
ahd->msgout_len = 0;
ahd_construct_wdtr(ahd, devinfo, bus_width);
ahd->msgout_index = 0;
response = TRUE;
sending_reply = TRUE;
}
/*
* After a wide message, we are async, but
* some devices don't seem to honor this portion
* of the spec. Force a renegotiation of the
* sync component of our transfer agreement even
* if our goal is async. By updating our width
* after forcing the negotiation, we avoid
* renegotiating for width.
*/
ahd_update_neg_request(ahd, devinfo, tstate,
tinfo, AHD_NEG_ALWAYS);
ahd_set_width(ahd, devinfo, bus_width,
AHD_TRANS_ACTIVE|AHD_TRANS_GOAL,
/*paused*/TRUE);
if (sending_reply == FALSE && reject == FALSE) {
/*
* We will always have an SDTR to send.
*/
ahd->msgout_index = 0;
ahd->msgout_len = 0;
ahd_build_transfer_msg(ahd, devinfo);
ahd->msgout_index = 0;
response = TRUE;
}
done = MSGLOOP_MSGCOMPLETE;
break;
}
case EXTENDED_PPR:
{
u_int period;
u_int offset;
u_int bus_width;
u_int ppr_options;
u_int saved_width;
u_int saved_offset;
u_int saved_ppr_options;
if (ahd->msgin_buf[1] != MSG_EXT_PPR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have all args before validating
* and acting on this message.
*
* Add one to MSG_EXT_PPR_LEN to account for
* the extended message preamble.
*/
if (ahd->msgin_index < (MSG_EXT_PPR_LEN + 1))
break;
period = ahd->msgin_buf[3];
offset = ahd->msgin_buf[5];
bus_width = ahd->msgin_buf[6];
saved_width = bus_width;
ppr_options = ahd->msgin_buf[7];
/*
* According to the spec, a DT only
* period factor with no DT option
* set implies async.
*/
if ((ppr_options & MSG_EXT_PPR_DT_REQ) == 0
&& period <= 9)
offset = 0;
saved_ppr_options = ppr_options;
saved_offset = offset;
/*
* Transfer options are only available if we
* are negotiating wide.
*/
if (bus_width == 0)
ppr_options &= MSG_EXT_PPR_QAS_REQ;
ahd_validate_width(ahd, tinfo, &bus_width,
devinfo->role);
ahd_devlimited_syncrate(ahd, tinfo, &period,
&ppr_options, devinfo->role);
ahd_validate_offset(ahd, tinfo, period, &offset,
bus_width, devinfo->role);
if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_PPR, TRUE)) {
/*
* If we are unable to do any of the
* requested options (we went too low),
* then we'll have to reject the message.
*/
if (saved_width > bus_width
|| saved_offset != offset
|| saved_ppr_options != ppr_options) {
reject = TRUE;
period = 0;
offset = 0;
bus_width = 0;
ppr_options = 0;
}
} else {
if (devinfo->role != ROLE_TARGET)
printk("(%s:%c:%d:%d): Target "
"Initiated PPR\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun);
else
printk("(%s:%c:%d:%d): Initiator "
"Initiated PPR\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun);
ahd->msgout_index = 0;
ahd->msgout_len = 0;
ahd_construct_ppr(ahd, devinfo, period, offset,
bus_width, ppr_options);
ahd->msgout_index = 0;
response = TRUE;
}
if (bootverbose) {
printk("(%s:%c:%d:%d): Received PPR width %x, "
"period %x, offset %x,options %x\n"
"\tFiltered to width %x, period %x, "
"offset %x, options %x\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun,
saved_width, ahd->msgin_buf[3],
saved_offset, saved_ppr_options,
bus_width, period, offset, ppr_options);
}
ahd_set_width(ahd, devinfo, bus_width,
AHD_TRANS_ACTIVE|AHD_TRANS_GOAL,
/*paused*/TRUE);
ahd_set_syncrate(ahd, devinfo, period,
offset, ppr_options,
AHD_TRANS_ACTIVE|AHD_TRANS_GOAL,
/*paused*/TRUE);
done = MSGLOOP_MSGCOMPLETE;
break;
}
default:
/* Unknown extended message. Reject it. */
reject = TRUE;
break;
}
break;
}
#ifdef AHD_TARGET_MODE
case TARGET_RESET:
ahd_handle_devreset(ahd, devinfo, CAM_LUN_WILDCARD,
CAM_BDR_SENT,
"Bus Device Reset Received",
/*verbose_level*/0);
ahd_restart(ahd);
done = MSGLOOP_TERMINATED;
break;
case ABORT_TASK:
case ABORT_TASK_SET:
case CLEAR_TASK_SET:
{
int tag;
/* Target mode messages */
if (devinfo->role != ROLE_TARGET) {
reject = TRUE;
break;
}
tag = SCB_LIST_NULL;
if (ahd->msgin_buf[0] == ABORT_TASK)
tag = ahd_inb(ahd, INITIATOR_TAG);
ahd_abort_scbs(ahd, devinfo->target, devinfo->channel,
devinfo->lun, tag, ROLE_TARGET,
CAM_REQ_ABORTED);
tstate = ahd->enabled_targets[devinfo->our_scsiid];
if (tstate != NULL) {
struct ahd_tmode_lstate* lstate;
lstate = tstate->enabled_luns[devinfo->lun];
if (lstate != NULL) {
ahd_queue_lstate_event(ahd, lstate,
devinfo->our_scsiid,
ahd->msgin_buf[0],
/*arg*/tag);
ahd_send_lstate_events(ahd, lstate);
}
}
ahd_restart(ahd);
done = MSGLOOP_TERMINATED;
break;
}
#endif
case QAS_REQUEST:
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
printk("%s: QAS request. SCSISIGI == 0x%x\n",
ahd_name(ahd), ahd_inb(ahd, SCSISIGI));
#endif
ahd->msg_flags |= MSG_FLAG_EXPECT_QASREJ_BUSFREE;
fallthrough;
case TERMINATE_IO_PROC:
default:
reject = TRUE;
break;
}
if (reject) {
/*
* Setup to reject the message.
*/
ahd->msgout_index = 0;
ahd->msgout_len = 1;
ahd->msgout_buf[0] = MESSAGE_REJECT;
done = MSGLOOP_MSGCOMPLETE;
response = TRUE;
}
if (done != MSGLOOP_IN_PROG && !response)
/* Clear the outgoing message buffer */
ahd->msgout_len = 0;
return (done);
}
/*
* Process a message reject message.
*/
static int
ahd_handle_msg_reject(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
{
/*
* What we care about here is if we had an
* outstanding SDTR or WDTR message for this
* target. If we did, this is a signal that
* the target is refusing negotiation.
*/
struct scb *scb;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
u_int scb_index;
u_int last_msg;
int response = 0;
scb_index = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scb_index);
tinfo = ahd_fetch_transinfo(ahd, devinfo->channel,
devinfo->our_scsiid,
devinfo->target, &tstate);
/* Might be necessary */
last_msg = ahd_inb(ahd, LAST_MSG);
if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_PPR, /*full*/FALSE)) {
if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_PPR, /*full*/TRUE)
&& tinfo->goal.period <= AHD_SYNCRATE_PACED) {
/*
* Target may not like our SPI-4 PPR Options.
* Attempt to negotiate 80MHz which will turn
* off these options.
*/
if (bootverbose) {
printk("(%s:%c:%d:%d): PPR Rejected. "
"Trying simple U160 PPR\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun);
}
tinfo->goal.period = AHD_SYNCRATE_DT;
tinfo->goal.ppr_options &= MSG_EXT_PPR_IU_REQ
| MSG_EXT_PPR_QAS_REQ
| MSG_EXT_PPR_DT_REQ;
} else {
/*
* Target does not support the PPR message.
* Attempt to negotiate SPI-2 style.
*/
if (bootverbose) {
printk("(%s:%c:%d:%d): PPR Rejected. "
"Trying WDTR/SDTR\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun);
}
tinfo->goal.ppr_options = 0;
tinfo->curr.transport_version = 2;
tinfo->goal.transport_version = 2;
}
ahd->msgout_index = 0;
ahd->msgout_len = 0;
ahd_build_transfer_msg(ahd, devinfo);
ahd->msgout_index = 0;
response = 1;
} else if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_WDTR, /*full*/FALSE)) {
/* note 8bit xfers */
printk("(%s:%c:%d:%d): refuses WIDE negotiation. Using "
"8bit transfers\n", ahd_name(ahd),
devinfo->channel, devinfo->target, devinfo->lun);
ahd_set_width(ahd, devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_ACTIVE|AHD_TRANS_GOAL,
/*paused*/TRUE);
/*
* No need to clear the sync rate. If the target
* did not accept the command, our syncrate is
* unaffected. If the target started the negotiation,
* but rejected our response, we already cleared the
* sync rate before sending our WDTR.
*/
if (tinfo->goal.offset != tinfo->curr.offset) {
/* Start the sync negotiation */
ahd->msgout_index = 0;
ahd->msgout_len = 0;
ahd_build_transfer_msg(ahd, devinfo);
ahd->msgout_index = 0;
response = 1;
}
} else if (ahd_sent_msg(ahd, AHDMSG_EXT, EXTENDED_SDTR, /*full*/FALSE)) {
/* note asynch xfers and clear flag */
ahd_set_syncrate(ahd, devinfo, /*period*/0,
/*offset*/0, /*ppr_options*/0,
AHD_TRANS_ACTIVE|AHD_TRANS_GOAL,
/*paused*/TRUE);
printk("(%s:%c:%d:%d): refuses synchronous negotiation. "
"Using asynchronous transfers\n",
ahd_name(ahd), devinfo->channel,
devinfo->target, devinfo->lun);
} else if ((scb->hscb->control & SIMPLE_QUEUE_TAG) != 0) {
int tag_type;
int mask;
tag_type = (scb->hscb->control & SIMPLE_QUEUE_TAG);
if (tag_type == SIMPLE_QUEUE_TAG) {
printk("(%s:%c:%d:%d): refuses tagged commands. "
"Performing non-tagged I/O\n", ahd_name(ahd),
devinfo->channel, devinfo->target, devinfo->lun);
ahd_set_tags(ahd, scb->io_ctx, devinfo, AHD_QUEUE_NONE);
mask = ~0x23;
} else {
printk("(%s:%c:%d:%d): refuses %s tagged commands. "
"Performing simple queue tagged I/O only\n",
ahd_name(ahd), devinfo->channel, devinfo->target,
devinfo->lun, tag_type == ORDERED_QUEUE_TAG
? "ordered" : "head of queue");
ahd_set_tags(ahd, scb->io_ctx, devinfo, AHD_QUEUE_BASIC);
mask = ~0x03;
}
/*
* Resend the identify for this CCB as the target
* may believe that the selection is invalid otherwise.
*/
ahd_outb(ahd, SCB_CONTROL,
ahd_inb_scbram(ahd, SCB_CONTROL) & mask);
scb->hscb->control &= mask;
ahd_set_transaction_tag(scb, /*enabled*/FALSE,
/*type*/SIMPLE_QUEUE_TAG);
ahd_outb(ahd, MSG_OUT, MSG_IDENTIFYFLAG);
ahd_assert_atn(ahd);
ahd_busy_tcl(ahd, BUILD_TCL(scb->hscb->scsiid, devinfo->lun),
SCB_GET_TAG(scb));
/*
* Requeue all tagged commands for this target
* currently in our possession so they can be
* converted to untagged commands.
*/
ahd_search_qinfifo(ahd, SCB_GET_TARGET(ahd, scb),
SCB_GET_CHANNEL(ahd, scb),
SCB_GET_LUN(scb), /*tag*/SCB_LIST_NULL,
ROLE_INITIATOR, CAM_REQUEUE_REQ,
SEARCH_COMPLETE);
} else if (ahd_sent_msg(ahd, AHDMSG_1B, MSG_IDENTIFYFLAG, TRUE)) {
/*
* Most likely the device believes that we had
* previously negotiated packetized.
*/
ahd->msg_flags |= MSG_FLAG_EXPECT_PPR_BUSFREE
| MSG_FLAG_IU_REQ_CHANGED;
ahd_force_renegotiation(ahd, devinfo);
ahd->msgout_index = 0;
ahd->msgout_len = 0;
ahd_build_transfer_msg(ahd, devinfo);
ahd->msgout_index = 0;
response = 1;
} else {
/*
* Otherwise, we ignore it.
*/
printk("%s:%c:%d: Message reject for %x -- ignored\n",
ahd_name(ahd), devinfo->channel, devinfo->target,
last_msg);
}
return (response);
}
/*
* Process an ingnore wide residue message.
*/
static void
ahd_handle_ign_wide_residue(struct ahd_softc *ahd, struct ahd_devinfo *devinfo)
{
u_int scb_index;
struct scb *scb;
scb_index = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scb_index);
/*
* XXX Actually check data direction in the sequencer?
* Perhaps add datadir to some spare bits in the hscb?
*/
if ((ahd_inb(ahd, SEQ_FLAGS) & DPHASE) == 0
|| ahd_get_transfer_dir(scb) != CAM_DIR_IN) {
/*
* Ignore the message if we haven't
* seen an appropriate data phase yet.
*/
} else {
/*
* If the residual occurred on the last
* transfer and the transfer request was
* expected to end on an odd count, do
* nothing. Otherwise, subtract a byte
* and update the residual count accordingly.
*/
uint32_t sgptr;
sgptr = ahd_inb_scbram(ahd, SCB_RESIDUAL_SGPTR);
if ((sgptr & SG_LIST_NULL) != 0
&& (ahd_inb_scbram(ahd, SCB_TASK_ATTRIBUTE)
& SCB_XFERLEN_ODD) != 0) {
/*
* If the residual occurred on the last
* transfer and the transfer request was
* expected to end on an odd count, do
* nothing.
*/
} else {
uint32_t data_cnt;
uint64_t data_addr;
uint32_t sglen;
/* Pull in the rest of the sgptr */
sgptr = ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR);
data_cnt = ahd_inl_scbram(ahd, SCB_RESIDUAL_DATACNT);
if ((sgptr & SG_LIST_NULL) != 0) {
/*
* The residual data count is not updated
* for the command run to completion case.
* Explicitly zero the count.
*/
data_cnt &= ~AHD_SG_LEN_MASK;
}
data_addr = ahd_inq(ahd, SHADDR);
data_cnt += 1;
data_addr -= 1;
sgptr &= SG_PTR_MASK;
if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
struct ahd_dma64_seg *sg;
sg = ahd_sg_bus_to_virt(ahd, scb, sgptr);
/*
* The residual sg ptr points to the next S/G
* to load so we must go back one.
*/
sg--;
sglen = ahd_le32toh(sg->len) & AHD_SG_LEN_MASK;
if (sg != scb->sg_list
&& sglen < (data_cnt & AHD_SG_LEN_MASK)) {
sg--;
sglen = ahd_le32toh(sg->len);
/*
* Preserve High Address and SG_LIST
* bits while setting the count to 1.
*/
data_cnt = 1|(sglen&(~AHD_SG_LEN_MASK));
data_addr = ahd_le64toh(sg->addr)
+ (sglen & AHD_SG_LEN_MASK)
- 1;
/*
* Increment sg so it points to the
* "next" sg.
*/
sg++;
sgptr = ahd_sg_virt_to_bus(ahd, scb,
sg);
}
} else {
struct ahd_dma_seg *sg;
sg = ahd_sg_bus_to_virt(ahd, scb, sgptr);
/*
* The residual sg ptr points to the next S/G
* to load so we must go back one.
*/
sg--;
sglen = ahd_le32toh(sg->len) & AHD_SG_LEN_MASK;
if (sg != scb->sg_list
&& sglen < (data_cnt & AHD_SG_LEN_MASK)) {
sg--;
sglen = ahd_le32toh(sg->len);
/*
* Preserve High Address and SG_LIST
* bits while setting the count to 1.
*/
data_cnt = 1|(sglen&(~AHD_SG_LEN_MASK));
data_addr = ahd_le32toh(sg->addr)
+ (sglen & AHD_SG_LEN_MASK)
- 1;
/*
* Increment sg so it points to the
* "next" sg.
*/
sg++;
sgptr = ahd_sg_virt_to_bus(ahd, scb,
sg);
}
}
/*
* Toggle the "oddness" of the transfer length
* to handle this mid-transfer ignore wide
* residue. This ensures that the oddness is
* correct for subsequent data transfers.
*/
ahd_outb(ahd, SCB_TASK_ATTRIBUTE,
ahd_inb_scbram(ahd, SCB_TASK_ATTRIBUTE)
^ SCB_XFERLEN_ODD);
ahd_outl(ahd, SCB_RESIDUAL_SGPTR, sgptr);
ahd_outl(ahd, SCB_RESIDUAL_DATACNT, data_cnt);
/*
* The FIFO's pointers will be updated if/when the
* sequencer re-enters a data phase.
*/
}
}
}
/*
* Reinitialize the data pointers for the active transfer
* based on its current residual.
*/
static void
ahd_reinitialize_dataptrs(struct ahd_softc *ahd)
{
struct scb *scb;
ahd_mode_state saved_modes;
u_int scb_index;
u_int wait;
uint32_t sgptr;
uint32_t resid;
uint64_t dataptr;
AHD_ASSERT_MODES(ahd, AHD_MODE_DFF0_MSK|AHD_MODE_DFF1_MSK,
AHD_MODE_DFF0_MSK|AHD_MODE_DFF1_MSK);
scb_index = ahd_get_scbptr(ahd);
scb = ahd_lookup_scb(ahd, scb_index);
/*
* Release and reacquire the FIFO so we
* have a clean slate.
*/
ahd_outb(ahd, DFFSXFRCTL, CLRCHN);
wait = 1000;
while (--wait && !(ahd_inb(ahd, MDFFSTAT) & FIFOFREE))
ahd_delay(100);
if (wait == 0) {
ahd_print_path(ahd, scb);
printk("ahd_reinitialize_dataptrs: Forcing FIFO free.\n");
ahd_outb(ahd, DFFSXFRCTL, RSTCHN|CLRSHCNT);
}
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd_outb(ahd, DFFSTAT,
ahd_inb(ahd, DFFSTAT)
| (saved_modes == 0x11 ? CURRFIFO_1 : CURRFIFO_0));
/*
* Determine initial values for data_addr and data_cnt
* for resuming the data phase.
*/
sgptr = ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR);
sgptr &= SG_PTR_MASK;
resid = (ahd_inb_scbram(ahd, SCB_RESIDUAL_DATACNT + 2) << 16)
| (ahd_inb_scbram(ahd, SCB_RESIDUAL_DATACNT + 1) << 8)
| ahd_inb_scbram(ahd, SCB_RESIDUAL_DATACNT);
if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0) {
struct ahd_dma64_seg *sg;
sg = ahd_sg_bus_to_virt(ahd, scb, sgptr);
/* The residual sg_ptr always points to the next sg */
sg--;
dataptr = ahd_le64toh(sg->addr)
+ (ahd_le32toh(sg->len) & AHD_SG_LEN_MASK)
- resid;
ahd_outl(ahd, HADDR + 4, dataptr >> 32);
} else {
struct ahd_dma_seg *sg;
sg = ahd_sg_bus_to_virt(ahd, scb, sgptr);
/* The residual sg_ptr always points to the next sg */
sg--;
dataptr = ahd_le32toh(sg->addr)
+ (ahd_le32toh(sg->len) & AHD_SG_LEN_MASK)
- resid;
ahd_outb(ahd, HADDR + 4,
(ahd_le32toh(sg->len) & ~AHD_SG_LEN_MASK) >> 24);
}
ahd_outl(ahd, HADDR, dataptr);
ahd_outb(ahd, HCNT + 2, resid >> 16);
ahd_outb(ahd, HCNT + 1, resid >> 8);
ahd_outb(ahd, HCNT, resid);
}
/*
* Handle the effects of issuing a bus device reset message.
*/
static void
ahd_handle_devreset(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
u_int lun, cam_status status, char *message,
int verbose_level)
{
#ifdef AHD_TARGET_MODE
struct ahd_tmode_tstate* tstate;
#endif
int found;
found = ahd_abort_scbs(ahd, devinfo->target, devinfo->channel,
lun, SCB_LIST_NULL, devinfo->role,
status);
#ifdef AHD_TARGET_MODE
/*
* Send an immediate notify ccb to all target mord peripheral
* drivers affected by this action.
*/
tstate = ahd->enabled_targets[devinfo->our_scsiid];
if (tstate != NULL) {
u_int cur_lun;
u_int max_lun;
if (lun != CAM_LUN_WILDCARD) {
cur_lun = 0;
max_lun = AHD_NUM_LUNS - 1;
} else {
cur_lun = lun;
max_lun = lun;
}
for (;cur_lun <= max_lun; cur_lun++) {
struct ahd_tmode_lstate* lstate;
lstate = tstate->enabled_luns[cur_lun];
if (lstate == NULL)
continue;
ahd_queue_lstate_event(ahd, lstate, devinfo->our_scsiid,
TARGET_RESET, /*arg*/0);
ahd_send_lstate_events(ahd, lstate);
}
}
#endif
/*
* Go back to async/narrow transfers and renegotiate.
*/
ahd_set_width(ahd, devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_CUR, /*paused*/TRUE);
ahd_set_syncrate(ahd, devinfo, /*period*/0, /*offset*/0,
/*ppr_options*/0, AHD_TRANS_CUR,
/*paused*/TRUE);
if (status != CAM_SEL_TIMEOUT)
ahd_send_async(ahd, devinfo->channel, devinfo->target,
CAM_LUN_WILDCARD, AC_SENT_BDR);
if (message != NULL && bootverbose)
printk("%s: %s on %c:%d. %d SCBs aborted\n", ahd_name(ahd),
message, devinfo->channel, devinfo->target, found);
}
#ifdef AHD_TARGET_MODE
static void
ahd_setup_target_msgin(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
struct scb *scb)
{
/*
* To facilitate adding multiple messages together,
* each routine should increment the index and len
* variables instead of setting them explicitly.
*/
ahd->msgout_index = 0;
ahd->msgout_len = 0;
if (scb != NULL && (scb->flags & SCB_AUTO_NEGOTIATE) != 0)
ahd_build_transfer_msg(ahd, devinfo);
else
panic("ahd_intr: AWAITING target message with no message");
ahd->msgout_index = 0;
ahd->msg_type = MSG_TYPE_TARGET_MSGIN;
}
#endif
/**************************** Initialization **********************************/
static u_int
ahd_sglist_size(struct ahd_softc *ahd)
{
bus_size_t list_size;
list_size = sizeof(struct ahd_dma_seg) * AHD_NSEG;
if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0)
list_size = sizeof(struct ahd_dma64_seg) * AHD_NSEG;
return (list_size);
}
/*
* Calculate the optimum S/G List allocation size. S/G elements used
* for a given transaction must be physically contiguous. Assume the
* OS will allocate full pages to us, so it doesn't make sense to request
* less than a page.
*/
static u_int
ahd_sglist_allocsize(struct ahd_softc *ahd)
{
bus_size_t sg_list_increment;
bus_size_t sg_list_size;
bus_size_t max_list_size;
bus_size_t best_list_size;
/* Start out with the minimum required for AHD_NSEG. */
sg_list_increment = ahd_sglist_size(ahd);
sg_list_size = sg_list_increment;
/* Get us as close as possible to a page in size. */
while ((sg_list_size + sg_list_increment) <= PAGE_SIZE)
sg_list_size += sg_list_increment;
/*
* Try to reduce the amount of wastage by allocating
* multiple pages.
*/
best_list_size = sg_list_size;
max_list_size = roundup(sg_list_increment, PAGE_SIZE);
if (max_list_size < 4 * PAGE_SIZE)
max_list_size = 4 * PAGE_SIZE;
if (max_list_size > (AHD_SCB_MAX_ALLOC * sg_list_increment))
max_list_size = (AHD_SCB_MAX_ALLOC * sg_list_increment);
while ((sg_list_size + sg_list_increment) <= max_list_size
&& (sg_list_size % PAGE_SIZE) != 0) {
bus_size_t new_mod;
bus_size_t best_mod;
sg_list_size += sg_list_increment;
new_mod = sg_list_size % PAGE_SIZE;
best_mod = best_list_size % PAGE_SIZE;
if (new_mod > best_mod || new_mod == 0) {
best_list_size = sg_list_size;
}
}
return (best_list_size);
}
/*
* Allocate a controller structure for a new device
* and perform initial initializion.
*/
struct ahd_softc *
ahd_alloc(void *platform_arg, char *name)
{
struct ahd_softc *ahd;
ahd = kzalloc(sizeof(*ahd), GFP_ATOMIC);
if (!ahd) {
printk("aic7xxx: cannot malloc softc!\n");
kfree(name);
return NULL;
}
ahd->seep_config = kmalloc(sizeof(*ahd->seep_config), GFP_ATOMIC);
if (ahd->seep_config == NULL) {
kfree(ahd);
kfree(name);
return (NULL);
}
LIST_INIT(&ahd->pending_scbs);
/* We don't know our unit number until the OSM sets it */
ahd->name = name;
ahd->unit = -1;
ahd->description = NULL;
ahd->bus_description = NULL;
ahd->channel = 'A';
ahd->chip = AHD_NONE;
ahd->features = AHD_FENONE;
ahd->bugs = AHD_BUGNONE;
ahd->flags = AHD_SPCHK_ENB_A|AHD_RESET_BUS_A|AHD_TERM_ENB_A
| AHD_EXTENDED_TRANS_A|AHD_STPWLEVEL_A;
timer_setup(&ahd->stat_timer, ahd_stat_timer, 0);
ahd->int_coalescing_timer = AHD_INT_COALESCING_TIMER_DEFAULT;
ahd->int_coalescing_maxcmds = AHD_INT_COALESCING_MAXCMDS_DEFAULT;
ahd->int_coalescing_mincmds = AHD_INT_COALESCING_MINCMDS_DEFAULT;
ahd->int_coalescing_threshold = AHD_INT_COALESCING_THRESHOLD_DEFAULT;
ahd->int_coalescing_stop_threshold =
AHD_INT_COALESCING_STOP_THRESHOLD_DEFAULT;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MEMORY) != 0) {
printk("%s: scb size = 0x%x, hscb size = 0x%x\n",
ahd_name(ahd), (u_int)sizeof(struct scb),
(u_int)sizeof(struct hardware_scb));
}
#endif
if (ahd_platform_alloc(ahd, platform_arg) != 0) {
ahd_free(ahd);
ahd = NULL;
}
return (ahd);
}
int
ahd_softc_init(struct ahd_softc *ahd)
{
ahd->unpause = 0;
ahd->pause = PAUSE;
return (0);
}
void
ahd_set_unit(struct ahd_softc *ahd, int unit)
{
ahd->unit = unit;
}
void
ahd_set_name(struct ahd_softc *ahd, char *name)
{
kfree(ahd->name);
ahd->name = name;
}
void
ahd_free(struct ahd_softc *ahd)
{
int i;
switch (ahd->init_level) {
default:
case 5:
ahd_shutdown(ahd);
fallthrough;
case 4:
ahd_dmamap_unload(ahd, ahd->shared_data_dmat,
ahd->shared_data_map.dmamap);
fallthrough;
case 3:
ahd_dmamem_free(ahd, ahd->shared_data_dmat, ahd->qoutfifo,
ahd->shared_data_map.dmamap);
ahd_dmamap_destroy(ahd, ahd->shared_data_dmat,
ahd->shared_data_map.dmamap);
fallthrough;
case 2:
ahd_dma_tag_destroy(ahd, ahd->shared_data_dmat);
break;
case 1:
break;
case 0:
break;
}
ahd_platform_free(ahd);
ahd_fini_scbdata(ahd);
for (i = 0; i < AHD_NUM_TARGETS; i++) {
struct ahd_tmode_tstate *tstate;
tstate = ahd->enabled_targets[i];
if (tstate != NULL) {
#ifdef AHD_TARGET_MODE
int j;
for (j = 0; j < AHD_NUM_LUNS; j++) {
struct ahd_tmode_lstate *lstate;
lstate = tstate->enabled_luns[j];
if (lstate != NULL) {
xpt_free_path(lstate->path);
kfree(lstate);
}
}
#endif
kfree(tstate);
}
}
#ifdef AHD_TARGET_MODE
if (ahd->black_hole != NULL) {
xpt_free_path(ahd->black_hole->path);
kfree(ahd->black_hole);
}
#endif
kfree(ahd->name);
kfree(ahd->seep_config);
kfree(ahd->saved_stack);
kfree(ahd);
return;
}
static void
ahd_shutdown(void *arg)
{
struct ahd_softc *ahd;
ahd = (struct ahd_softc *)arg;
/*
* Stop periodic timer callbacks.
*/
del_timer_sync(&ahd->stat_timer);
/* This will reset most registers to 0, but not all */
ahd_reset(ahd, /*reinit*/FALSE);
}
/*
* Reset the controller and record some information about it
* that is only available just after a reset. If "reinit" is
* non-zero, this reset occurred after initial configuration
* and the caller requests that the chip be fully reinitialized
* to a runable state. Chip interrupts are *not* enabled after
* a reinitialization. The caller must enable interrupts via
* ahd_intr_enable().
*/
int
ahd_reset(struct ahd_softc *ahd, int reinit)
{
u_int sxfrctl1;
int wait;
uint32_t cmd;
/*
* Preserve the value of the SXFRCTL1 register for all channels.
* It contains settings that affect termination and we don't want
* to disturb the integrity of the bus.
*/
ahd_pause(ahd);
ahd_update_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
sxfrctl1 = ahd_inb(ahd, SXFRCTL1);
cmd = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
if ((ahd->bugs & AHD_PCIX_CHIPRST_BUG) != 0) {
uint32_t mod_cmd;
/*
* A4 Razor #632
* During the assertion of CHIPRST, the chip
* does not disable its parity logic prior to
* the start of the reset. This may cause a
* parity error to be detected and thus a
* spurious SERR or PERR assertion. Disable
* PERR and SERR responses during the CHIPRST.
*/
mod_cmd = cmd & ~(PCIM_CMD_PERRESPEN|PCIM_CMD_SERRESPEN);
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
mod_cmd, /*bytes*/2);
}
ahd_outb(ahd, HCNTRL, CHIPRST | ahd->pause);
/*
* Ensure that the reset has finished. We delay 1000us
* prior to reading the register to make sure the chip
* has sufficiently completed its reset to handle register
* accesses.
*/
wait = 1000;
do {
ahd_delay(1000);
} while (--wait && !(ahd_inb(ahd, HCNTRL) & CHIPRSTACK));
if (wait == 0) {
printk("%s: WARNING - Failed chip reset! "
"Trying to initialize anyway.\n", ahd_name(ahd));
}
ahd_outb(ahd, HCNTRL, ahd->pause);
if ((ahd->bugs & AHD_PCIX_CHIPRST_BUG) != 0) {
/*
* Clear any latched PCI error status and restore
* previous SERR and PERR response enables.
*/
ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
0xFF, /*bytes*/1);
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
cmd, /*bytes*/2);
}
/*
* Mode should be SCSI after a chip reset, but lets
* set it just to be safe. We touch the MODE_PTR
* register directly so as to bypass the lazy update
* code in ahd_set_modes().
*/
ahd_known_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd_outb(ahd, MODE_PTR,
ahd_build_mode_state(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI));
/*
* Restore SXFRCTL1.
*
* We must always initialize STPWEN to 1 before we
* restore the saved values. STPWEN is initialized
* to a tri-state condition which can only be cleared
* by turning it on.
*/
ahd_outb(ahd, SXFRCTL1, sxfrctl1|STPWEN);
ahd_outb(ahd, SXFRCTL1, sxfrctl1);
/* Determine chip configuration */
ahd->features &= ~AHD_WIDE;
if ((ahd_inb(ahd, SBLKCTL) & SELWIDE) != 0)
ahd->features |= AHD_WIDE;
/*
* If a recovery action has forced a chip reset,
* re-initialize the chip to our liking.
*/
if (reinit != 0)
ahd_chip_init(ahd);
return (0);
}
/*
* Determine the number of SCBs available on the controller
*/
static int
ahd_probe_scbs(struct ahd_softc *ahd) {
int i;
AHD_ASSERT_MODES(ahd, ~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK),
~(AHD_MODE_UNKNOWN_MSK|AHD_MODE_CFG_MSK));
for (i = 0; i < AHD_SCB_MAX; i++) {
int j;
ahd_set_scbptr(ahd, i);
ahd_outw(ahd, SCB_BASE, i);
for (j = 2; j < 64; j++)
ahd_outb(ahd, SCB_BASE+j, 0);
/* Start out life as unallocated (needing an abort) */
ahd_outb(ahd, SCB_CONTROL, MK_MESSAGE);
if (ahd_inw_scbram(ahd, SCB_BASE) != i)
break;
ahd_set_scbptr(ahd, 0);
if (ahd_inw_scbram(ahd, SCB_BASE) != 0)
break;
}
return (i);
}
static void
ahd_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
dma_addr_t *baddr;
baddr = (dma_addr_t *)arg;
*baddr = segs->ds_addr;
}
static void
ahd_initialize_hscbs(struct ahd_softc *ahd)
{
int i;
for (i = 0; i < ahd->scb_data.maxhscbs; i++) {
ahd_set_scbptr(ahd, i);
/* Clear the control byte. */
ahd_outb(ahd, SCB_CONTROL, 0);
/* Set the next pointer */
ahd_outw(ahd, SCB_NEXT, SCB_LIST_NULL);
}
}
static int
ahd_init_scbdata(struct ahd_softc *ahd)
{
struct scb_data *scb_data;
int i;
scb_data = &ahd->scb_data;
TAILQ_INIT(&scb_data->free_scbs);
for (i = 0; i < AHD_NUM_TARGETS * AHD_NUM_LUNS_NONPKT; i++)
LIST_INIT(&scb_data->free_scb_lists[i]);
LIST_INIT(&scb_data->any_dev_free_scb_list);
SLIST_INIT(&scb_data->hscb_maps);
SLIST_INIT(&scb_data->sg_maps);
SLIST_INIT(&scb_data->sense_maps);
/* Determine the number of hardware SCBs and initialize them */
scb_data->maxhscbs = ahd_probe_scbs(ahd);
if (scb_data->maxhscbs == 0) {
printk("%s: No SCB space found\n", ahd_name(ahd));
return (ENXIO);
}
ahd_initialize_hscbs(ahd);
/*
* Create our DMA tags. These tags define the kinds of device
* accessible memory allocations and memory mappings we will
* need to perform during normal operation.
*
* Unless we need to further restrict the allocation, we rely
* on the restrictions of the parent dmat, hence the common
* use of MAXADDR and MAXSIZE.
*/
/* DMA tag for our hardware scb structures */
if (ahd_dma_tag_create(ahd, ahd->parent_dmat, /*alignment*/1,
/*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
PAGE_SIZE, /*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->hscb_dmat) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* DMA tag for our S/G structures. */
if (ahd_dma_tag_create(ahd, ahd->parent_dmat, /*alignment*/8,
/*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
ahd_sglist_allocsize(ahd), /*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->sg_dmat) != 0) {
goto error_exit;
}
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MEMORY) != 0)
printk("%s: ahd_sglist_allocsize = 0x%x\n", ahd_name(ahd),
ahd_sglist_allocsize(ahd));
#endif
scb_data->init_level++;
/* DMA tag for our sense buffers. We allocate in page sized chunks */
if (ahd_dma_tag_create(ahd, ahd->parent_dmat, /*alignment*/1,
/*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
PAGE_SIZE, /*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->sense_dmat) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* Perform initial CCB allocation */
ahd_alloc_scbs(ahd);
if (scb_data->numscbs == 0) {
printk("%s: ahd_init_scbdata - "
"Unable to allocate initial scbs\n",
ahd_name(ahd));
goto error_exit;
}
/*
* Note that we were successful
*/
return (0);
error_exit:
return (ENOMEM);
}
static struct scb *
ahd_find_scb_by_tag(struct ahd_softc *ahd, u_int tag)
{
struct scb *scb;
/*
* Look on the pending list.
*/
LIST_FOREACH(scb, &ahd->pending_scbs, pending_links) {
if (SCB_GET_TAG(scb) == tag)
return (scb);
}
/*
* Then on all of the collision free lists.
*/
TAILQ_FOREACH(scb, &ahd->scb_data.free_scbs, links.tqe) {
struct scb *list_scb;
list_scb = scb;
do {
if (SCB_GET_TAG(list_scb) == tag)
return (list_scb);
list_scb = LIST_NEXT(list_scb, collision_links);
} while (list_scb);
}
/*
* And finally on the generic free list.
*/
LIST_FOREACH(scb, &ahd->scb_data.any_dev_free_scb_list, links.le) {
if (SCB_GET_TAG(scb) == tag)
return (scb);
}
return (NULL);
}
static void
ahd_fini_scbdata(struct ahd_softc *ahd)
{
struct scb_data *scb_data;
scb_data = &ahd->scb_data;
if (scb_data == NULL)
return;
switch (scb_data->init_level) {
default:
case 7:
{
struct map_node *sns_map;
while ((sns_map = SLIST_FIRST(&scb_data->sense_maps)) != NULL) {
SLIST_REMOVE_HEAD(&scb_data->sense_maps, links);
ahd_dmamap_unload(ahd, scb_data->sense_dmat,
sns_map->dmamap);
ahd_dmamem_free(ahd, scb_data->sense_dmat,
sns_map->vaddr, sns_map->dmamap);
kfree(sns_map);
}
ahd_dma_tag_destroy(ahd, scb_data->sense_dmat);
}
fallthrough;
case 6:
{
struct map_node *sg_map;
while ((sg_map = SLIST_FIRST(&scb_data->sg_maps)) != NULL) {
SLIST_REMOVE_HEAD(&scb_data->sg_maps, links);
ahd_dmamap_unload(ahd, scb_data->sg_dmat,
sg_map->dmamap);
ahd_dmamem_free(ahd, scb_data->sg_dmat,
sg_map->vaddr, sg_map->dmamap);
kfree(sg_map);
}
ahd_dma_tag_destroy(ahd, scb_data->sg_dmat);
}
fallthrough;
case 5:
{
struct map_node *hscb_map;
while ((hscb_map = SLIST_FIRST(&scb_data->hscb_maps)) != NULL) {
SLIST_REMOVE_HEAD(&scb_data->hscb_maps, links);
ahd_dmamap_unload(ahd, scb_data->hscb_dmat,
hscb_map->dmamap);
ahd_dmamem_free(ahd, scb_data->hscb_dmat,
hscb_map->vaddr, hscb_map->dmamap);
kfree(hscb_map);
}
ahd_dma_tag_destroy(ahd, scb_data->hscb_dmat);
}
fallthrough;
case 4:
case 3:
case 2:
case 1:
case 0:
break;
}
}
/*
* DSP filter Bypass must be enabled until the first selection
* after a change in bus mode (Razor #491 and #493).
*/
static void
ahd_setup_iocell_workaround(struct ahd_softc *ahd)
{
ahd_mode_state saved_modes;
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
ahd_outb(ahd, DSPDATACTL, ahd_inb(ahd, DSPDATACTL)
| BYPASSENAB | RCVROFFSTDIS | XMITOFFSTDIS);
ahd_outb(ahd, SIMODE0, ahd_inb(ahd, SIMODE0) | (ENSELDO|ENSELDI));
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0)
printk("%s: Setting up iocell workaround\n", ahd_name(ahd));
#endif
ahd_restore_modes(ahd, saved_modes);
ahd->flags &= ~AHD_HAD_FIRST_SEL;
}
static void
ahd_iocell_first_selection(struct ahd_softc *ahd)
{
ahd_mode_state saved_modes;
u_int sblkctl;
if ((ahd->flags & AHD_HAD_FIRST_SEL) != 0)
return;
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
sblkctl = ahd_inb(ahd, SBLKCTL);
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0)
printk("%s: iocell first selection\n", ahd_name(ahd));
#endif
if ((sblkctl & ENAB40) != 0) {
ahd_outb(ahd, DSPDATACTL,
ahd_inb(ahd, DSPDATACTL) & ~BYPASSENAB);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0)
printk("%s: BYPASS now disabled\n", ahd_name(ahd));
#endif
}
ahd_outb(ahd, SIMODE0, ahd_inb(ahd, SIMODE0) & ~(ENSELDO|ENSELDI));
ahd_outb(ahd, CLRINT, CLRSCSIINT);
ahd_restore_modes(ahd, saved_modes);
ahd->flags |= AHD_HAD_FIRST_SEL;
}
/*************************** SCB Management ***********************************/
static void
ahd_add_col_list(struct ahd_softc *ahd, struct scb *scb, u_int col_idx)
{
struct scb_list *free_list;
struct scb_tailq *free_tailq;
struct scb *first_scb;
scb->flags |= SCB_ON_COL_LIST;
AHD_SET_SCB_COL_IDX(scb, col_idx);
free_list = &ahd->scb_data.free_scb_lists[col_idx];
free_tailq = &ahd->scb_data.free_scbs;
first_scb = LIST_FIRST(free_list);
if (first_scb != NULL) {
LIST_INSERT_AFTER(first_scb, scb, collision_links);
} else {
LIST_INSERT_HEAD(free_list, scb, collision_links);
TAILQ_INSERT_TAIL(free_tailq, scb, links.tqe);
}
}
static void
ahd_rem_col_list(struct ahd_softc *ahd, struct scb *scb)
{
struct scb_list *free_list;
struct scb_tailq *free_tailq;
struct scb *first_scb;
u_int col_idx;
scb->flags &= ~SCB_ON_COL_LIST;
col_idx = AHD_GET_SCB_COL_IDX(ahd, scb);
free_list = &ahd->scb_data.free_scb_lists[col_idx];
free_tailq = &ahd->scb_data.free_scbs;
first_scb = LIST_FIRST(free_list);
if (first_scb == scb) {
struct scb *next_scb;
/*
* Maintain order in the collision free
* lists for fairness if this device has
* other colliding tags active.
*/
next_scb = LIST_NEXT(scb, collision_links);
if (next_scb != NULL) {
TAILQ_INSERT_AFTER(free_tailq, scb,
next_scb, links.tqe);
}
TAILQ_REMOVE(free_tailq, scb, links.tqe);
}
LIST_REMOVE(scb, collision_links);
}
/*
* Get a free scb. If there are none, see if we can allocate a new SCB.
*/
struct scb *
ahd_get_scb(struct ahd_softc *ahd, u_int col_idx)
{
struct scb *scb;
int tries;
tries = 0;
look_again:
TAILQ_FOREACH(scb, &ahd->scb_data.free_scbs, links.tqe) {
if (AHD_GET_SCB_COL_IDX(ahd, scb) != col_idx) {
ahd_rem_col_list(ahd, scb);
goto found;
}
}
if ((scb = LIST_FIRST(&ahd->scb_data.any_dev_free_scb_list)) == NULL) {
if (tries++ != 0)
return (NULL);
ahd_alloc_scbs(ahd);
goto look_again;
}
LIST_REMOVE(scb, links.le);
if (col_idx != AHD_NEVER_COL_IDX
&& (scb->col_scb != NULL)
&& (scb->col_scb->flags & SCB_ACTIVE) == 0) {
LIST_REMOVE(scb->col_scb, links.le);
ahd_add_col_list(ahd, scb->col_scb, col_idx);
}
found:
scb->flags |= SCB_ACTIVE;
return (scb);
}
/*
* Return an SCB resource to the free list.
*/
void
ahd_free_scb(struct ahd_softc *ahd, struct scb *scb)
{
/* Clean up for the next user */
scb->flags = SCB_FLAG_NONE;
scb->hscb->control = 0;
ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = NULL;
if (scb->col_scb == NULL) {
/*
* No collision possible. Just free normally.
*/
LIST_INSERT_HEAD(&ahd->scb_data.any_dev_free_scb_list,
scb, links.le);
} else if ((scb->col_scb->flags & SCB_ON_COL_LIST) != 0) {
/*
* The SCB we might have collided with is on
* a free collision list. Put both SCBs on
* the generic list.
*/
ahd_rem_col_list(ahd, scb->col_scb);
LIST_INSERT_HEAD(&ahd->scb_data.any_dev_free_scb_list,
scb, links.le);
LIST_INSERT_HEAD(&ahd->scb_data.any_dev_free_scb_list,
scb->col_scb, links.le);
} else if ((scb->col_scb->flags
& (SCB_PACKETIZED|SCB_ACTIVE)) == SCB_ACTIVE
&& (scb->col_scb->hscb->control & TAG_ENB) != 0) {
/*
* The SCB we might collide with on the next allocation
* is still active in a non-packetized, tagged, context.
* Put us on the SCB collision list.
*/
ahd_add_col_list(ahd, scb,
AHD_GET_SCB_COL_IDX(ahd, scb->col_scb));
} else {
/*
* The SCB we might collide with on the next allocation
* is either active in a packetized context, or free.
* Since we can't collide, put this SCB on the generic
* free list.
*/
LIST_INSERT_HEAD(&ahd->scb_data.any_dev_free_scb_list,
scb, links.le);
}
ahd_platform_scb_free(ahd, scb);
}
static void
ahd_alloc_scbs(struct ahd_softc *ahd)
{
struct scb_data *scb_data;
struct scb *next_scb;
struct hardware_scb *hscb;
struct map_node *hscb_map;
struct map_node *sg_map;
struct map_node *sense_map;
uint8_t *segs;
uint8_t *sense_data;
dma_addr_t hscb_busaddr;
dma_addr_t sg_busaddr;
dma_addr_t sense_busaddr;
int newcount;
int i;
scb_data = &ahd->scb_data;
if (scb_data->numscbs >= AHD_SCB_MAX_ALLOC)
/* Can't allocate any more */
return;
if (scb_data->scbs_left != 0) {
int offset;
offset = (PAGE_SIZE / sizeof(*hscb)) - scb_data->scbs_left;
hscb_map = SLIST_FIRST(&scb_data->hscb_maps);
hscb = &((struct hardware_scb *)hscb_map->vaddr)[offset];
hscb_busaddr = hscb_map->physaddr + (offset * sizeof(*hscb));
} else {
hscb_map = kmalloc(sizeof(*hscb_map), GFP_ATOMIC);
if (hscb_map == NULL)
return;
/* Allocate the next batch of hardware SCBs */
if (ahd_dmamem_alloc(ahd, scb_data->hscb_dmat,
(void **)&hscb_map->vaddr,
BUS_DMA_NOWAIT, &hscb_map->dmamap) != 0) {
kfree(hscb_map);
return;
}
SLIST_INSERT_HEAD(&scb_data->hscb_maps, hscb_map, links);
ahd_dmamap_load(ahd, scb_data->hscb_dmat, hscb_map->dmamap,
hscb_map->vaddr, PAGE_SIZE, ahd_dmamap_cb,
&hscb_map->physaddr, /*flags*/0);
hscb = (struct hardware_scb *)hscb_map->vaddr;
hscb_busaddr = hscb_map->physaddr;
scb_data->scbs_left = PAGE_SIZE / sizeof(*hscb);
}
if (scb_data->sgs_left != 0) {
int offset;
offset = ((ahd_sglist_allocsize(ahd) / ahd_sglist_size(ahd))
- scb_data->sgs_left) * ahd_sglist_size(ahd);
sg_map = SLIST_FIRST(&scb_data->sg_maps);
segs = sg_map->vaddr + offset;
sg_busaddr = sg_map->physaddr + offset;
} else {
sg_map = kmalloc(sizeof(*sg_map), GFP_ATOMIC);
if (sg_map == NULL)
return;
/* Allocate the next batch of S/G lists */
if (ahd_dmamem_alloc(ahd, scb_data->sg_dmat,
(void **)&sg_map->vaddr,
BUS_DMA_NOWAIT, &sg_map->dmamap) != 0) {
kfree(sg_map);
return;
}
SLIST_INSERT_HEAD(&scb_data->sg_maps, sg_map, links);
ahd_dmamap_load(ahd, scb_data->sg_dmat, sg_map->dmamap,
sg_map->vaddr, ahd_sglist_allocsize(ahd),
ahd_dmamap_cb, &sg_map->physaddr, /*flags*/0);
segs = sg_map->vaddr;
sg_busaddr = sg_map->physaddr;
scb_data->sgs_left =
ahd_sglist_allocsize(ahd) / ahd_sglist_size(ahd);
#ifdef AHD_DEBUG
if (ahd_debug & AHD_SHOW_MEMORY)
printk("Mapped SG data\n");
#endif
}
if (scb_data->sense_left != 0) {
int offset;
offset = PAGE_SIZE - (AHD_SENSE_BUFSIZE * scb_data->sense_left);
sense_map = SLIST_FIRST(&scb_data->sense_maps);
sense_data = sense_map->vaddr + offset;
sense_busaddr = sense_map->physaddr + offset;
} else {
sense_map = kmalloc(sizeof(*sense_map), GFP_ATOMIC);
if (sense_map == NULL)
return;
/* Allocate the next batch of sense buffers */
if (ahd_dmamem_alloc(ahd, scb_data->sense_dmat,
(void **)&sense_map->vaddr,
BUS_DMA_NOWAIT, &sense_map->dmamap) != 0) {
kfree(sense_map);
return;
}
SLIST_INSERT_HEAD(&scb_data->sense_maps, sense_map, links);
ahd_dmamap_load(ahd, scb_data->sense_dmat, sense_map->dmamap,
sense_map->vaddr, PAGE_SIZE, ahd_dmamap_cb,
&sense_map->physaddr, /*flags*/0);
sense_data = sense_map->vaddr;
sense_busaddr = sense_map->physaddr;
scb_data->sense_left = PAGE_SIZE / AHD_SENSE_BUFSIZE;
#ifdef AHD_DEBUG
if (ahd_debug & AHD_SHOW_MEMORY)
printk("Mapped sense data\n");
#endif
}
newcount = min(scb_data->sense_left, scb_data->scbs_left);
newcount = min(newcount, scb_data->sgs_left);
newcount = min(newcount, (AHD_SCB_MAX_ALLOC - scb_data->numscbs));
for (i = 0; i < newcount; i++) {
struct scb_platform_data *pdata;
u_int col_tag;
next_scb = kmalloc(sizeof(*next_scb), GFP_ATOMIC);
if (next_scb == NULL)
break;
pdata = kmalloc(sizeof(*pdata), GFP_ATOMIC);
if (pdata == NULL) {
kfree(next_scb);
break;
}
next_scb->platform_data = pdata;
next_scb->hscb_map = hscb_map;
next_scb->sg_map = sg_map;
next_scb->sense_map = sense_map;
next_scb->sg_list = segs;
next_scb->sense_data = sense_data;
next_scb->sense_busaddr = sense_busaddr;
memset(hscb, 0, sizeof(*hscb));
next_scb->hscb = hscb;
hscb->hscb_busaddr = ahd_htole32(hscb_busaddr);
/*
* The sequencer always starts with the second entry.
* The first entry is embedded in the scb.
*/
next_scb->sg_list_busaddr = sg_busaddr;
if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0)
next_scb->sg_list_busaddr
+= sizeof(struct ahd_dma64_seg);
else
next_scb->sg_list_busaddr += sizeof(struct ahd_dma_seg);
next_scb->ahd_softc = ahd;
next_scb->flags = SCB_FLAG_NONE;
next_scb->hscb->tag = ahd_htole16(scb_data->numscbs);
col_tag = scb_data->numscbs ^ 0x100;
next_scb->col_scb = ahd_find_scb_by_tag(ahd, col_tag);
if (next_scb->col_scb != NULL)
next_scb->col_scb->col_scb = next_scb;
ahd_free_scb(ahd, next_scb);
hscb++;
hscb_busaddr += sizeof(*hscb);
segs += ahd_sglist_size(ahd);
sg_busaddr += ahd_sglist_size(ahd);
sense_data += AHD_SENSE_BUFSIZE;
sense_busaddr += AHD_SENSE_BUFSIZE;
scb_data->numscbs++;
scb_data->sense_left--;
scb_data->scbs_left--;
scb_data->sgs_left--;
}
}
void
ahd_controller_info(struct ahd_softc *ahd, char *buf)
{
const char *speed;
const char *type;
int len;
len = sprintf(buf, "%s: ", ahd_chip_names[ahd->chip & AHD_CHIPID_MASK]);
buf += len;
speed = "Ultra320 ";
if ((ahd->features & AHD_WIDE) != 0) {
type = "Wide ";
} else {
type = "Single ";
}
len = sprintf(buf, "%s%sChannel %c, SCSI Id=%d, ",
speed, type, ahd->channel, ahd->our_id);
buf += len;
sprintf(buf, "%s, %d SCBs", ahd->bus_description,
ahd->scb_data.maxhscbs);
}
static const char *channel_strings[] = {
"Primary Low",
"Primary High",
"Secondary Low",
"Secondary High"
};
static const char *termstat_strings[] = {
"Terminated Correctly",
"Over Terminated",
"Under Terminated",
"Not Configured"
};
/***************************** Timer Facilities *******************************/
static void
ahd_timer_reset(struct timer_list *timer, int usec)
{
del_timer(timer);
timer->expires = jiffies + (usec * HZ)/1000000;
add_timer(timer);
}
/*
* Start the board, ready for normal operation
*/
int
ahd_init(struct ahd_softc *ahd)
{
uint8_t *next_vaddr;
dma_addr_t next_baddr;
size_t driver_data_size;
int i;
int error;
u_int warn_user;
uint8_t current_sensing;
uint8_t fstat;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
ahd->stack_size = ahd_probe_stack_size(ahd);
ahd->saved_stack = kmalloc_array(ahd->stack_size, sizeof(uint16_t),
GFP_ATOMIC);
if (ahd->saved_stack == NULL)
return (ENOMEM);
/*
* Verify that the compiler hasn't over-aggressively
* padded important structures.
*/
if (sizeof(struct hardware_scb) != 64)
panic("Hardware SCB size is incorrect");
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_DEBUG_SEQUENCER) != 0)
ahd->flags |= AHD_SEQUENCER_DEBUG;
#endif
/*
* Default to allowing initiator operations.
*/
ahd->flags |= AHD_INITIATORROLE;
/*
* Only allow target mode features if this unit has them enabled.
*/
if ((AHD_TMODE_ENABLE & (0x1 << ahd->unit)) == 0)
ahd->features &= ~AHD_TARGETMODE;
ahd->init_level++;
/*
* DMA tag for our command fifos and other data in system memory
* the card's sequencer must be able to access. For initiator
* roles, we need to allocate space for the qoutfifo. When providing
* for the target mode role, we must additionally provide space for
* the incoming target command fifo.
*/
driver_data_size = AHD_SCB_MAX * sizeof(*ahd->qoutfifo)
+ sizeof(struct hardware_scb);
if ((ahd->features & AHD_TARGETMODE) != 0)
driver_data_size += AHD_TMODE_CMDS * sizeof(struct target_cmd);
if ((ahd->bugs & AHD_PKT_BITBUCKET_BUG) != 0)
driver_data_size += PKT_OVERRUN_BUFSIZE;
if (ahd_dma_tag_create(ahd, ahd->parent_dmat, /*alignment*/1,
/*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
driver_data_size,
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &ahd->shared_data_dmat) != 0) {
return (ENOMEM);
}
ahd->init_level++;
/* Allocation of driver data */
if (ahd_dmamem_alloc(ahd, ahd->shared_data_dmat,
(void **)&ahd->shared_data_map.vaddr,
BUS_DMA_NOWAIT,
&ahd->shared_data_map.dmamap) != 0) {
return (ENOMEM);
}
ahd->init_level++;
/* And permanently map it in */
ahd_dmamap_load(ahd, ahd->shared_data_dmat, ahd->shared_data_map.dmamap,
ahd->shared_data_map.vaddr, driver_data_size,
ahd_dmamap_cb, &ahd->shared_data_map.physaddr,
/*flags*/0);
ahd->qoutfifo = (struct ahd_completion *)ahd->shared_data_map.vaddr;
next_vaddr = (uint8_t *)&ahd->qoutfifo[AHD_QOUT_SIZE];
next_baddr = ahd->shared_data_map.physaddr
+ AHD_QOUT_SIZE*sizeof(struct ahd_completion);
if ((ahd->features & AHD_TARGETMODE) != 0) {
ahd->targetcmds = (struct target_cmd *)next_vaddr;
next_vaddr += AHD_TMODE_CMDS * sizeof(struct target_cmd);
next_baddr += AHD_TMODE_CMDS * sizeof(struct target_cmd);
}
if ((ahd->bugs & AHD_PKT_BITBUCKET_BUG) != 0) {
ahd->overrun_buf = next_vaddr;
next_vaddr += PKT_OVERRUN_BUFSIZE;
next_baddr += PKT_OVERRUN_BUFSIZE;
}
/*
* We need one SCB to serve as the "next SCB". Since the
* tag identifier in this SCB will never be used, there is
* no point in using a valid HSCB tag from an SCB pulled from
* the standard free pool. So, we allocate this "sentinel"
* specially from the DMA safe memory chunk used for the QOUTFIFO.
*/
ahd->next_queued_hscb = (struct hardware_scb *)next_vaddr;
ahd->next_queued_hscb_map = &ahd->shared_data_map;
ahd->next_queued_hscb->hscb_busaddr = ahd_htole32(next_baddr);
ahd->init_level++;
/* Allocate SCB data now that buffer_dmat is initialized */
if (ahd_init_scbdata(ahd) != 0)
return (ENOMEM);
if ((ahd->flags & AHD_INITIATORROLE) == 0)
ahd->flags &= ~AHD_RESET_BUS_A;
/*
* Before committing these settings to the chip, give
* the OSM one last chance to modify our configuration.
*/
ahd_platform_init(ahd);
/* Bring up the chip. */
ahd_chip_init(ahd);
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
if ((ahd->flags & AHD_CURRENT_SENSING) == 0)
goto init_done;
/*
* Verify termination based on current draw and
* warn user if the bus is over/under terminated.
*/
error = ahd_write_flexport(ahd, FLXADDR_ROMSTAT_CURSENSECTL,
CURSENSE_ENB);
if (error != 0) {
printk("%s: current sensing timeout 1\n", ahd_name(ahd));
goto init_done;
}
for (i = 20, fstat = FLX_FSTAT_BUSY;
(fstat & FLX_FSTAT_BUSY) != 0 && i; i--) {
error = ahd_read_flexport(ahd, FLXADDR_FLEXSTAT, &fstat);
if (error != 0) {
printk("%s: current sensing timeout 2\n",
ahd_name(ahd));
goto init_done;
}
}
if (i == 0) {
printk("%s: Timedout during current-sensing test\n",
ahd_name(ahd));
goto init_done;
}
/* Latch Current Sensing status. */
error = ahd_read_flexport(ahd, FLXADDR_CURRENT_STAT, ¤t_sensing);
if (error != 0) {
printk("%s: current sensing timeout 3\n", ahd_name(ahd));
goto init_done;
}
/* Diable current sensing. */
ahd_write_flexport(ahd, FLXADDR_ROMSTAT_CURSENSECTL, 0);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_TERMCTL) != 0) {
printk("%s: current_sensing == 0x%x\n",
ahd_name(ahd), current_sensing);
}
#endif
warn_user = 0;
for (i = 0; i < 4; i++, current_sensing >>= FLX_CSTAT_SHIFT) {
u_int term_stat;
term_stat = (current_sensing & FLX_CSTAT_MASK);
switch (term_stat) {
case FLX_CSTAT_OVER:
case FLX_CSTAT_UNDER:
warn_user++;
fallthrough;
case FLX_CSTAT_INVALID:
case FLX_CSTAT_OKAY:
if (warn_user == 0 && bootverbose == 0)
break;
printk("%s: %s Channel %s\n", ahd_name(ahd),
channel_strings[i], termstat_strings[term_stat]);
break;
}
}
if (warn_user) {
printk("%s: WARNING. Termination is not configured correctly.\n"
"%s: WARNING. SCSI bus operations may FAIL.\n",
ahd_name(ahd), ahd_name(ahd));
}
init_done:
ahd_restart(ahd);
ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US);
return (0);
}
/*
* (Re)initialize chip state after a chip reset.
*/
static void
ahd_chip_init(struct ahd_softc *ahd)
{
uint32_t busaddr;
u_int sxfrctl1;
u_int scsiseq_template;
u_int wait;
u_int i;
u_int target;
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
/*
* Take the LED out of diagnostic mode
*/
ahd_outb(ahd, SBLKCTL, ahd_inb(ahd, SBLKCTL) & ~(DIAGLEDEN|DIAGLEDON));
/*
* Return HS_MAILBOX to its default value.
*/
ahd->hs_mailbox = 0;
ahd_outb(ahd, HS_MAILBOX, 0);
/* Set the SCSI Id, SXFRCTL0, SXFRCTL1, and SIMODE1. */
ahd_outb(ahd, IOWNID, ahd->our_id);
ahd_outb(ahd, TOWNID, ahd->our_id);
sxfrctl1 = (ahd->flags & AHD_TERM_ENB_A) != 0 ? STPWEN : 0;
sxfrctl1 |= (ahd->flags & AHD_SPCHK_ENB_A) != 0 ? ENSPCHK : 0;
if ((ahd->bugs & AHD_LONG_SETIMO_BUG)
&& (ahd->seltime != STIMESEL_MIN)) {
/*
* The selection timer duration is twice as long
* as it should be. Halve it by adding "1" to
* the user specified setting.
*/
sxfrctl1 |= ahd->seltime + STIMESEL_BUG_ADJ;
} else {
sxfrctl1 |= ahd->seltime;
}
ahd_outb(ahd, SXFRCTL0, DFON);
ahd_outb(ahd, SXFRCTL1, sxfrctl1|ahd->seltime|ENSTIMER|ACTNEGEN);
ahd_outb(ahd, SIMODE1, ENSELTIMO|ENSCSIRST|ENSCSIPERR);
/*
* Now that termination is set, wait for up
* to 500ms for our transceivers to settle. If
* the adapter does not have a cable attached,
* the transceivers may never settle, so don't
* complain if we fail here.
*/
for (wait = 10000;
(ahd_inb(ahd, SBLKCTL) & (ENAB40|ENAB20)) == 0 && wait;
wait--)
ahd_delay(100);
/* Clear any false bus resets due to the transceivers settling */
ahd_outb(ahd, CLRSINT1, CLRSCSIRSTI);
ahd_outb(ahd, CLRINT, CLRSCSIINT);
/* Initialize mode specific S/G state. */
for (i = 0; i < 2; i++) {
ahd_set_modes(ahd, AHD_MODE_DFF0 + i, AHD_MODE_DFF0 + i);
ahd_outb(ahd, LONGJMP_ADDR + 1, INVALID_ADDR);
ahd_outb(ahd, SG_STATE, 0);
ahd_outb(ahd, CLRSEQINTSRC, 0xFF);
ahd_outb(ahd, SEQIMODE,
ENSAVEPTRS|ENCFG4DATA|ENCFG4ISTAT
|ENCFG4TSTAT|ENCFG4ICMD|ENCFG4TCMD);
}
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
ahd_outb(ahd, DSCOMMAND0, ahd_inb(ahd, DSCOMMAND0)|MPARCKEN|CACHETHEN);
ahd_outb(ahd, DFF_THRSH, RD_DFTHRSH_75|WR_DFTHRSH_75);
ahd_outb(ahd, SIMODE0, ENIOERR|ENOVERRUN);
ahd_outb(ahd, SIMODE3, ENNTRAMPERR|ENOSRAMPERR);
if ((ahd->bugs & AHD_BUSFREEREV_BUG) != 0) {
ahd_outb(ahd, OPTIONMODE, AUTOACKEN|AUTO_MSGOUT_DE);
} else {
ahd_outb(ahd, OPTIONMODE, AUTOACKEN|BUSFREEREV|AUTO_MSGOUT_DE);
}
ahd_outb(ahd, SCSCHKN, CURRFIFODEF|WIDERESEN|SHVALIDSTDIS);
if ((ahd->chip & AHD_BUS_MASK) == AHD_PCIX)
/*
* Do not issue a target abort when a split completion
* error occurs. Let our PCIX interrupt handler deal
* with it instead. H2A4 Razor #625
*/
ahd_outb(ahd, PCIXCTL, ahd_inb(ahd, PCIXCTL) | SPLTSTADIS);
if ((ahd->bugs & AHD_LQOOVERRUN_BUG) != 0)
ahd_outb(ahd, LQOSCSCTL, LQONOCHKOVER);
/*
* Tweak IOCELL settings.
*/
if ((ahd->flags & AHD_HP_BOARD) != 0) {
for (i = 0; i < NUMDSPS; i++) {
ahd_outb(ahd, DSPSELECT, i);
ahd_outb(ahd, WRTBIASCTL, WRTBIASCTL_HP_DEFAULT);
}
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0)
printk("%s: WRTBIASCTL now 0x%x\n", ahd_name(ahd),
WRTBIASCTL_HP_DEFAULT);
#endif
}
ahd_setup_iocell_workaround(ahd);
/*
* Enable LQI Manager interrupts.
*/
ahd_outb(ahd, LQIMODE1, ENLQIPHASE_LQ|ENLQIPHASE_NLQ|ENLIQABORT
| ENLQICRCI_LQ|ENLQICRCI_NLQ|ENLQIBADLQI
| ENLQIOVERI_LQ|ENLQIOVERI_NLQ);
ahd_outb(ahd, LQOMODE0, ENLQOATNLQ|ENLQOATNPKT|ENLQOTCRC);
/*
* We choose to have the sequencer catch LQOPHCHGINPKT errors
* manually for the command phase at the start of a packetized
* selection case. ENLQOBUSFREE should be made redundant by
* the BUSFREE interrupt, but it seems that some LQOBUSFREE
* events fail to assert the BUSFREE interrupt so we must
* also enable LQOBUSFREE interrupts.
*/
ahd_outb(ahd, LQOMODE1, ENLQOBUSFREE);
/*
* Setup sequencer interrupt handlers.
*/
ahd_outw(ahd, INTVEC1_ADDR, ahd_resolve_seqaddr(ahd, LABEL_seq_isr));
ahd_outw(ahd, INTVEC2_ADDR, ahd_resolve_seqaddr(ahd, LABEL_timer_isr));
/*
* Setup SCB Offset registers.
*/
if ((ahd->bugs & AHD_PKT_LUN_BUG) != 0) {
ahd_outb(ahd, LUNPTR, offsetof(struct hardware_scb,
pkt_long_lun));
} else {
ahd_outb(ahd, LUNPTR, offsetof(struct hardware_scb, lun));
}
ahd_outb(ahd, CMDLENPTR, offsetof(struct hardware_scb, cdb_len));
ahd_outb(ahd, ATTRPTR, offsetof(struct hardware_scb, task_attribute));
ahd_outb(ahd, FLAGPTR, offsetof(struct hardware_scb, task_management));
ahd_outb(ahd, CMDPTR, offsetof(struct hardware_scb,
shared_data.idata.cdb));
ahd_outb(ahd, QNEXTPTR,
offsetof(struct hardware_scb, next_hscb_busaddr));
ahd_outb(ahd, ABRTBITPTR, MK_MESSAGE_BIT_OFFSET);
ahd_outb(ahd, ABRTBYTEPTR, offsetof(struct hardware_scb, control));
if ((ahd->bugs & AHD_PKT_LUN_BUG) != 0) {
ahd_outb(ahd, LUNLEN,
sizeof(ahd->next_queued_hscb->pkt_long_lun) - 1);
} else {
ahd_outb(ahd, LUNLEN, LUNLEN_SINGLE_LEVEL_LUN);
}
ahd_outb(ahd, CDBLIMIT, SCB_CDB_LEN_PTR - 1);
ahd_outb(ahd, MAXCMD, 0xFF);
ahd_outb(ahd, SCBAUTOPTR,
AUSCBPTR_EN | offsetof(struct hardware_scb, tag));
/* We haven't been enabled for target mode yet. */
ahd_outb(ahd, MULTARGID, 0);
ahd_outb(ahd, MULTARGID + 1, 0);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
/* Initialize the negotiation table. */
if ((ahd->features & AHD_NEW_IOCELL_OPTS) == 0) {
/*
* Clear the spare bytes in the neg table to avoid
* spurious parity errors.
*/
for (target = 0; target < AHD_NUM_TARGETS; target++) {
ahd_outb(ahd, NEGOADDR, target);
ahd_outb(ahd, ANNEXCOL, AHD_ANNEXCOL_PER_DEV0);
for (i = 0; i < AHD_NUM_PER_DEV_ANNEXCOLS; i++)
ahd_outb(ahd, ANNEXDAT, 0);
}
}
for (target = 0; target < AHD_NUM_TARGETS; target++) {
struct ahd_devinfo devinfo;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
target, &tstate);
ahd_compile_devinfo(&devinfo, ahd->our_id,
target, CAM_LUN_WILDCARD,
'A', ROLE_INITIATOR);
ahd_update_neg_table(ahd, &devinfo, &tinfo->curr);
}
ahd_outb(ahd, CLRSINT3, NTRAMPERR|OSRAMPERR);
ahd_outb(ahd, CLRINT, CLRSCSIINT);
#ifdef NEEDS_MORE_TESTING
/*
* Always enable abort on incoming L_Qs if this feature is
* supported. We use this to catch invalid SCB references.
*/
if ((ahd->bugs & AHD_ABORT_LQI_BUG) == 0)
ahd_outb(ahd, LQCTL1, ABORTPENDING);
else
#endif
ahd_outb(ahd, LQCTL1, 0);
/* All of our queues are empty */
ahd->qoutfifonext = 0;
ahd->qoutfifonext_valid_tag = QOUTFIFO_ENTRY_VALID;
ahd_outb(ahd, QOUTFIFO_ENTRY_VALID_TAG, QOUTFIFO_ENTRY_VALID);
for (i = 0; i < AHD_QOUT_SIZE; i++)
ahd->qoutfifo[i].valid_tag = 0;
ahd_sync_qoutfifo(ahd, BUS_DMASYNC_PREREAD);
ahd->qinfifonext = 0;
for (i = 0; i < AHD_QIN_SIZE; i++)
ahd->qinfifo[i] = SCB_LIST_NULL;
if ((ahd->features & AHD_TARGETMODE) != 0) {
/* All target command blocks start out invalid. */
for (i = 0; i < AHD_TMODE_CMDS; i++)
ahd->targetcmds[i].cmd_valid = 0;
ahd_sync_tqinfifo(ahd, BUS_DMASYNC_PREREAD);
ahd->tqinfifonext = 1;
ahd_outb(ahd, KERNEL_TQINPOS, ahd->tqinfifonext - 1);
ahd_outb(ahd, TQINPOS, ahd->tqinfifonext);
}
/* Initialize Scratch Ram. */
ahd_outb(ahd, SEQ_FLAGS, 0);
ahd_outb(ahd, SEQ_FLAGS2, 0);
/* We don't have any waiting selections */
ahd_outw(ahd, WAITING_TID_HEAD, SCB_LIST_NULL);
ahd_outw(ahd, WAITING_TID_TAIL, SCB_LIST_NULL);
ahd_outw(ahd, MK_MESSAGE_SCB, SCB_LIST_NULL);
ahd_outw(ahd, MK_MESSAGE_SCSIID, 0xFF);
for (i = 0; i < AHD_NUM_TARGETS; i++)
ahd_outw(ahd, WAITING_SCB_TAILS + (2 * i), SCB_LIST_NULL);
/*
* Nobody is waiting to be DMAed into the QOUTFIFO.
*/
ahd_outw(ahd, COMPLETE_SCB_HEAD, SCB_LIST_NULL);
ahd_outw(ahd, COMPLETE_SCB_DMAINPROG_HEAD, SCB_LIST_NULL);
ahd_outw(ahd, COMPLETE_DMA_SCB_HEAD, SCB_LIST_NULL);
ahd_outw(ahd, COMPLETE_DMA_SCB_TAIL, SCB_LIST_NULL);
ahd_outw(ahd, COMPLETE_ON_QFREEZE_HEAD, SCB_LIST_NULL);
/*
* The Freeze Count is 0.
*/
ahd->qfreeze_cnt = 0;
ahd_outw(ahd, QFREEZE_COUNT, 0);
ahd_outw(ahd, KERNEL_QFREEZE_COUNT, 0);
/*
* Tell the sequencer where it can find our arrays in memory.
*/
busaddr = ahd->shared_data_map.physaddr;
ahd_outl(ahd, SHARED_DATA_ADDR, busaddr);
ahd_outl(ahd, QOUTFIFO_NEXT_ADDR, busaddr);
/*
* Setup the allowed SCSI Sequences based on operational mode.
* If we are a target, we'll enable select in operations once
* we've had a lun enabled.
*/
scsiseq_template = ENAUTOATNP;
if ((ahd->flags & AHD_INITIATORROLE) != 0)
scsiseq_template |= ENRSELI;
ahd_outb(ahd, SCSISEQ_TEMPLATE, scsiseq_template);
/* There are no busy SCBs yet. */
for (target = 0; target < AHD_NUM_TARGETS; target++) {
int lun;
for (lun = 0; lun < AHD_NUM_LUNS_NONPKT; lun++)
ahd_unbusy_tcl(ahd, BUILD_TCL_RAW(target, 'A', lun));
}
/*
* Initialize the group code to command length table.
* Vendor Unique codes are set to 0 so we only capture
* the first byte of the cdb. These can be overridden
* when target mode is enabled.
*/
ahd_outb(ahd, CMDSIZE_TABLE, 5);
ahd_outb(ahd, CMDSIZE_TABLE + 1, 9);
ahd_outb(ahd, CMDSIZE_TABLE + 2, 9);
ahd_outb(ahd, CMDSIZE_TABLE + 3, 0);
ahd_outb(ahd, CMDSIZE_TABLE + 4, 15);
ahd_outb(ahd, CMDSIZE_TABLE + 5, 11);
ahd_outb(ahd, CMDSIZE_TABLE + 6, 0);
ahd_outb(ahd, CMDSIZE_TABLE + 7, 0);
/* Tell the sequencer of our initial queue positions */
ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN);
ahd_outb(ahd, QOFF_CTLSTA, SCB_QSIZE_512);
ahd->qinfifonext = 0;
ahd_set_hnscb_qoff(ahd, ahd->qinfifonext);
ahd_set_hescb_qoff(ahd, 0);
ahd_set_snscb_qoff(ahd, 0);
ahd_set_sescb_qoff(ahd, 0);
ahd_set_sdscb_qoff(ahd, 0);
/*
* Tell the sequencer which SCB will be the next one it receives.
*/
busaddr = ahd_le32toh(ahd->next_queued_hscb->hscb_busaddr);
ahd_outl(ahd, NEXT_QUEUED_SCB_ADDR, busaddr);
/*
* Default to coalescing disabled.
*/
ahd_outw(ahd, INT_COALESCING_CMDCOUNT, 0);
ahd_outw(ahd, CMDS_PENDING, 0);
ahd_update_coalescing_values(ahd, ahd->int_coalescing_timer,
ahd->int_coalescing_maxcmds,
ahd->int_coalescing_mincmds);
ahd_enable_coalescing(ahd, FALSE);
ahd_loadseq(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
if (ahd->features & AHD_AIC79XXB_SLOWCRC) {
u_int negodat3 = ahd_inb(ahd, NEGCONOPTS);
negodat3 |= ENSLOWCRC;
ahd_outb(ahd, NEGCONOPTS, negodat3);
negodat3 = ahd_inb(ahd, NEGCONOPTS);
if (!(negodat3 & ENSLOWCRC))
printk("aic79xx: failed to set the SLOWCRC bit\n");
else
printk("aic79xx: SLOWCRC bit set\n");
}
}
/*
* Setup default device and controller settings.
* This should only be called if our probe has
* determined that no configuration data is available.
*/
int
ahd_default_config(struct ahd_softc *ahd)
{
int targ;
ahd->our_id = 7;
/*
* Allocate a tstate to house information for our
* initiator presence on the bus as well as the user
* data for any target mode initiator.
*/
if (ahd_alloc_tstate(ahd, ahd->our_id, 'A') == NULL) {
printk("%s: unable to allocate ahd_tmode_tstate. "
"Failing attach\n", ahd_name(ahd));
return (ENOMEM);
}
for (targ = 0; targ < AHD_NUM_TARGETS; targ++) {
struct ahd_devinfo devinfo;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
uint16_t target_mask;
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
targ, &tstate);
/*
* We support SPC2 and SPI4.
*/
tinfo->user.protocol_version = 4;
tinfo->user.transport_version = 4;
target_mask = 0x01 << targ;
ahd->user_discenable |= target_mask;
tstate->discenable |= target_mask;
ahd->user_tagenable |= target_mask;
#ifdef AHD_FORCE_160
tinfo->user.period = AHD_SYNCRATE_DT;
#else
tinfo->user.period = AHD_SYNCRATE_160;
#endif
tinfo->user.offset = MAX_OFFSET;
tinfo->user.ppr_options = MSG_EXT_PPR_RD_STRM
| MSG_EXT_PPR_WR_FLOW
| MSG_EXT_PPR_HOLD_MCS
| MSG_EXT_PPR_IU_REQ
| MSG_EXT_PPR_QAS_REQ
| MSG_EXT_PPR_DT_REQ;
if ((ahd->features & AHD_RTI) != 0)
tinfo->user.ppr_options |= MSG_EXT_PPR_RTI;
tinfo->user.width = MSG_EXT_WDTR_BUS_16_BIT;
/*
* Start out Async/Narrow/Untagged and with
* conservative protocol support.
*/
tinfo->goal.protocol_version = 2;
tinfo->goal.transport_version = 2;
tinfo->curr.protocol_version = 2;
tinfo->curr.transport_version = 2;
ahd_compile_devinfo(&devinfo, ahd->our_id,
targ, CAM_LUN_WILDCARD,
'A', ROLE_INITIATOR);
tstate->tagenable &= ~target_mask;
ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_CUR|AHD_TRANS_GOAL, /*paused*/TRUE);
ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
/*ppr_options*/0, AHD_TRANS_CUR|AHD_TRANS_GOAL,
/*paused*/TRUE);
}
return (0);
}
/*
* Parse device configuration information.
*/
int
ahd_parse_cfgdata(struct ahd_softc *ahd, struct seeprom_config *sc)
{
int targ;
int max_targ;
max_targ = sc->max_targets & CFMAXTARG;
ahd->our_id = sc->brtime_id & CFSCSIID;
/*
* Allocate a tstate to house information for our
* initiator presence on the bus as well as the user
* data for any target mode initiator.
*/
if (ahd_alloc_tstate(ahd, ahd->our_id, 'A') == NULL) {
printk("%s: unable to allocate ahd_tmode_tstate. "
"Failing attach\n", ahd_name(ahd));
return (ENOMEM);
}
for (targ = 0; targ < max_targ; targ++) {
struct ahd_devinfo devinfo;
struct ahd_initiator_tinfo *tinfo;
struct ahd_transinfo *user_tinfo;
struct ahd_tmode_tstate *tstate;
uint16_t target_mask;
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
targ, &tstate);
user_tinfo = &tinfo->user;
/*
* We support SPC2 and SPI4.
*/
tinfo->user.protocol_version = 4;
tinfo->user.transport_version = 4;
target_mask = 0x01 << targ;
ahd->user_discenable &= ~target_mask;
tstate->discenable &= ~target_mask;
ahd->user_tagenable &= ~target_mask;
if (sc->device_flags[targ] & CFDISC) {
tstate->discenable |= target_mask;
ahd->user_discenable |= target_mask;
ahd->user_tagenable |= target_mask;
} else {
/*
* Cannot be packetized without disconnection.
*/
sc->device_flags[targ] &= ~CFPACKETIZED;
}
user_tinfo->ppr_options = 0;
user_tinfo->period = (sc->device_flags[targ] & CFXFER);
if (user_tinfo->period < CFXFER_ASYNC) {
if (user_tinfo->period <= AHD_PERIOD_10MHz)
user_tinfo->ppr_options |= MSG_EXT_PPR_DT_REQ;
user_tinfo->offset = MAX_OFFSET;
} else {
user_tinfo->offset = 0;
user_tinfo->period = AHD_ASYNC_XFER_PERIOD;
}
#ifdef AHD_FORCE_160
if (user_tinfo->period <= AHD_SYNCRATE_160)
user_tinfo->period = AHD_SYNCRATE_DT;
#endif
if ((sc->device_flags[targ] & CFPACKETIZED) != 0) {
user_tinfo->ppr_options |= MSG_EXT_PPR_RD_STRM
| MSG_EXT_PPR_WR_FLOW
| MSG_EXT_PPR_HOLD_MCS
| MSG_EXT_PPR_IU_REQ;
if ((ahd->features & AHD_RTI) != 0)
user_tinfo->ppr_options |= MSG_EXT_PPR_RTI;
}
if ((sc->device_flags[targ] & CFQAS) != 0)
user_tinfo->ppr_options |= MSG_EXT_PPR_QAS_REQ;
if ((sc->device_flags[targ] & CFWIDEB) != 0)
user_tinfo->width = MSG_EXT_WDTR_BUS_16_BIT;
else
user_tinfo->width = MSG_EXT_WDTR_BUS_8_BIT;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0)
printk("(%d): %x:%x:%x:%x\n", targ, user_tinfo->width,
user_tinfo->period, user_tinfo->offset,
user_tinfo->ppr_options);
#endif
/*
* Start out Async/Narrow/Untagged and with
* conservative protocol support.
*/
tstate->tagenable &= ~target_mask;
tinfo->goal.protocol_version = 2;
tinfo->goal.transport_version = 2;
tinfo->curr.protocol_version = 2;
tinfo->curr.transport_version = 2;
ahd_compile_devinfo(&devinfo, ahd->our_id,
targ, CAM_LUN_WILDCARD,
'A', ROLE_INITIATOR);
ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_CUR|AHD_TRANS_GOAL, /*paused*/TRUE);
ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0,
/*ppr_options*/0, AHD_TRANS_CUR|AHD_TRANS_GOAL,
/*paused*/TRUE);
}
ahd->flags &= ~AHD_SPCHK_ENB_A;
if (sc->bios_control & CFSPARITY)
ahd->flags |= AHD_SPCHK_ENB_A;
ahd->flags &= ~AHD_RESET_BUS_A;
if (sc->bios_control & CFRESETB)
ahd->flags |= AHD_RESET_BUS_A;
ahd->flags &= ~AHD_EXTENDED_TRANS_A;
if (sc->bios_control & CFEXTEND)
ahd->flags |= AHD_EXTENDED_TRANS_A;
ahd->flags &= ~AHD_BIOS_ENABLED;
if ((sc->bios_control & CFBIOSSTATE) == CFBS_ENABLED)
ahd->flags |= AHD_BIOS_ENABLED;
ahd->flags &= ~AHD_STPWLEVEL_A;
if ((sc->adapter_control & CFSTPWLEVEL) != 0)
ahd->flags |= AHD_STPWLEVEL_A;
return (0);
}
/*
* Parse device configuration information.
*/
int
ahd_parse_vpddata(struct ahd_softc *ahd, struct vpd_config *vpd)
{
int error;
error = ahd_verify_vpd_cksum(vpd);
if (error == 0)
return (EINVAL);
if ((vpd->bios_flags & VPDBOOTHOST) != 0)
ahd->flags |= AHD_BOOT_CHANNEL;
return (0);
}
void
ahd_intr_enable(struct ahd_softc *ahd, int enable)
{
u_int hcntrl;
hcntrl = ahd_inb(ahd, HCNTRL);
hcntrl &= ~INTEN;
ahd->pause &= ~INTEN;
ahd->unpause &= ~INTEN;
if (enable) {
hcntrl |= INTEN;
ahd->pause |= INTEN;
ahd->unpause |= INTEN;
}
ahd_outb(ahd, HCNTRL, hcntrl);
}
static void
ahd_update_coalescing_values(struct ahd_softc *ahd, u_int timer, u_int maxcmds,
u_int mincmds)
{
if (timer > AHD_TIMER_MAX_US)
timer = AHD_TIMER_MAX_US;
ahd->int_coalescing_timer = timer;
if (maxcmds > AHD_INT_COALESCING_MAXCMDS_MAX)
maxcmds = AHD_INT_COALESCING_MAXCMDS_MAX;
if (mincmds > AHD_INT_COALESCING_MINCMDS_MAX)
mincmds = AHD_INT_COALESCING_MINCMDS_MAX;
ahd->int_coalescing_maxcmds = maxcmds;
ahd_outw(ahd, INT_COALESCING_TIMER, timer / AHD_TIMER_US_PER_TICK);
ahd_outb(ahd, INT_COALESCING_MAXCMDS, -maxcmds);
ahd_outb(ahd, INT_COALESCING_MINCMDS, -mincmds);
}
static void
ahd_enable_coalescing(struct ahd_softc *ahd, int enable)
{
ahd->hs_mailbox &= ~ENINT_COALESCE;
if (enable)
ahd->hs_mailbox |= ENINT_COALESCE;
ahd_outb(ahd, HS_MAILBOX, ahd->hs_mailbox);
ahd_flush_device_writes(ahd);
ahd_run_qoutfifo(ahd);
}
/*
* Ensure that the card is paused in a location
* outside of all critical sections and that all
* pending work is completed prior to returning.
* This routine should only be called from outside
* an interrupt context.
*/
void
ahd_pause_and_flushwork(struct ahd_softc *ahd)
{
u_int intstat;
u_int maxloops;
maxloops = 1000;
ahd->flags |= AHD_ALL_INTERRUPTS;
ahd_pause(ahd);
/*
* Freeze the outgoing selections. We do this only
* until we are safely paused without further selections
* pending.
*/
ahd->qfreeze_cnt--;
ahd_outw(ahd, KERNEL_QFREEZE_COUNT, ahd->qfreeze_cnt);
ahd_outb(ahd, SEQ_FLAGS2, ahd_inb(ahd, SEQ_FLAGS2) | SELECTOUT_QFROZEN);
do {
ahd_unpause(ahd);
/*
* Give the sequencer some time to service
* any active selections.
*/
ahd_delay(500);
ahd_intr(ahd);
ahd_pause(ahd);
intstat = ahd_inb(ahd, INTSTAT);
if ((intstat & INT_PEND) == 0) {
ahd_clear_critical_section(ahd);
intstat = ahd_inb(ahd, INTSTAT);
}
} while (--maxloops
&& (intstat != 0xFF || (ahd->features & AHD_REMOVABLE) == 0)
&& ((intstat & INT_PEND) != 0
|| (ahd_inb(ahd, SCSISEQ0) & ENSELO) != 0
|| (ahd_inb(ahd, SSTAT0) & (SELDO|SELINGO)) != 0));
if (maxloops == 0) {
printk("Infinite interrupt loop, INTSTAT = %x",
ahd_inb(ahd, INTSTAT));
}
ahd->qfreeze_cnt++;
ahd_outw(ahd, KERNEL_QFREEZE_COUNT, ahd->qfreeze_cnt);
ahd_flush_qoutfifo(ahd);
ahd->flags &= ~AHD_ALL_INTERRUPTS;
}
int __maybe_unused
ahd_suspend(struct ahd_softc *ahd)
{
ahd_pause_and_flushwork(ahd);
if (LIST_FIRST(&ahd->pending_scbs) != NULL) {
ahd_unpause(ahd);
return (EBUSY);
}
ahd_shutdown(ahd);
return (0);
}
void __maybe_unused
ahd_resume(struct ahd_softc *ahd)
{
ahd_reset(ahd, /*reinit*/TRUE);
ahd_intr_enable(ahd, TRUE);
ahd_restart(ahd);
}
/************************** Busy Target Table *********************************/
/*
* Set SCBPTR to the SCB that contains the busy
* table entry for TCL. Return the offset into
* the SCB that contains the entry for TCL.
* saved_scbid is dereferenced and set to the
* scbid that should be restored once manipualtion
* of the TCL entry is complete.
*/
static inline u_int
ahd_index_busy_tcl(struct ahd_softc *ahd, u_int *saved_scbid, u_int tcl)
{
/*
* Index to the SCB that contains the busy entry.
*/
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
*saved_scbid = ahd_get_scbptr(ahd);
ahd_set_scbptr(ahd, TCL_LUN(tcl)
| ((TCL_TARGET_OFFSET(tcl) & 0xC) << 4));
/*
* And now calculate the SCB offset to the entry.
* Each entry is 2 bytes wide, hence the
* multiplication by 2.
*/
return (((TCL_TARGET_OFFSET(tcl) & 0x3) << 1) + SCB_DISCONNECTED_LISTS);
}
/*
* Return the untagged transaction id for a given target/channel lun.
*/
static u_int
ahd_find_busy_tcl(struct ahd_softc *ahd, u_int tcl)
{
u_int scbid;
u_int scb_offset;
u_int saved_scbptr;
scb_offset = ahd_index_busy_tcl(ahd, &saved_scbptr, tcl);
scbid = ahd_inw_scbram(ahd, scb_offset);
ahd_set_scbptr(ahd, saved_scbptr);
return (scbid);
}
static void
ahd_busy_tcl(struct ahd_softc *ahd, u_int tcl, u_int scbid)
{
u_int scb_offset;
u_int saved_scbptr;
scb_offset = ahd_index_busy_tcl(ahd, &saved_scbptr, tcl);
ahd_outw(ahd, scb_offset, scbid);
ahd_set_scbptr(ahd, saved_scbptr);
}
/************************** SCB and SCB queue management **********************/
static int
ahd_match_scb(struct ahd_softc *ahd, struct scb *scb, int target,
char channel, int lun, u_int tag, role_t role)
{
int targ = SCB_GET_TARGET(ahd, scb);
char chan = SCB_GET_CHANNEL(ahd, scb);
int slun = SCB_GET_LUN(scb);
int match;
match = ((chan == channel) || (channel == ALL_CHANNELS));
if (match != 0)
match = ((targ == target) || (target == CAM_TARGET_WILDCARD));
if (match != 0)
match = ((lun == slun) || (lun == CAM_LUN_WILDCARD));
if (match != 0) {
#ifdef AHD_TARGET_MODE
int group;
group = XPT_FC_GROUP(scb->io_ctx->ccb_h.func_code);
if (role == ROLE_INITIATOR) {
match = (group != XPT_FC_GROUP_TMODE)
&& ((tag == SCB_GET_TAG(scb))
|| (tag == SCB_LIST_NULL));
} else if (role == ROLE_TARGET) {
match = (group == XPT_FC_GROUP_TMODE)
&& ((tag == scb->io_ctx->csio.tag_id)
|| (tag == SCB_LIST_NULL));
}
#else /* !AHD_TARGET_MODE */
match = ((tag == SCB_GET_TAG(scb)) || (tag == SCB_LIST_NULL));
#endif /* AHD_TARGET_MODE */
}
return match;
}
static void
ahd_freeze_devq(struct ahd_softc *ahd, struct scb *scb)
{
int target;
char channel;
int lun;
target = SCB_GET_TARGET(ahd, scb);
lun = SCB_GET_LUN(scb);
channel = SCB_GET_CHANNEL(ahd, scb);
ahd_search_qinfifo(ahd, target, channel, lun,
/*tag*/SCB_LIST_NULL, ROLE_UNKNOWN,
CAM_REQUEUE_REQ, SEARCH_COMPLETE);
ahd_platform_freeze_devq(ahd, scb);
}
void
ahd_qinfifo_requeue_tail(struct ahd_softc *ahd, struct scb *scb)
{
struct scb *prev_scb;
ahd_mode_state saved_modes;
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN);
prev_scb = NULL;
if (ahd_qinfifo_count(ahd) != 0) {
u_int prev_tag;
u_int prev_pos;
prev_pos = AHD_QIN_WRAP(ahd->qinfifonext - 1);
prev_tag = ahd->qinfifo[prev_pos];
prev_scb = ahd_lookup_scb(ahd, prev_tag);
}
ahd_qinfifo_requeue(ahd, prev_scb, scb);
ahd_set_hnscb_qoff(ahd, ahd->qinfifonext);
ahd_restore_modes(ahd, saved_modes);
}
static void
ahd_qinfifo_requeue(struct ahd_softc *ahd, struct scb *prev_scb,
struct scb *scb)
{
if (prev_scb == NULL) {
uint32_t busaddr;
busaddr = ahd_le32toh(scb->hscb->hscb_busaddr);
ahd_outl(ahd, NEXT_QUEUED_SCB_ADDR, busaddr);
} else {
prev_scb->hscb->next_hscb_busaddr = scb->hscb->hscb_busaddr;
ahd_sync_scb(ahd, prev_scb,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
}
ahd->qinfifo[AHD_QIN_WRAP(ahd->qinfifonext)] = SCB_GET_TAG(scb);
ahd->qinfifonext++;
scb->hscb->next_hscb_busaddr = ahd->next_queued_hscb->hscb_busaddr;
ahd_sync_scb(ahd, scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
}
static int
ahd_qinfifo_count(struct ahd_softc *ahd)
{
u_int qinpos;
u_int wrap_qinpos;
u_int wrap_qinfifonext;
AHD_ASSERT_MODES(ahd, AHD_MODE_CCHAN_MSK, AHD_MODE_CCHAN_MSK);
qinpos = ahd_get_snscb_qoff(ahd);
wrap_qinpos = AHD_QIN_WRAP(qinpos);
wrap_qinfifonext = AHD_QIN_WRAP(ahd->qinfifonext);
if (wrap_qinfifonext >= wrap_qinpos)
return (wrap_qinfifonext - wrap_qinpos);
else
return (wrap_qinfifonext
+ ARRAY_SIZE(ahd->qinfifo) - wrap_qinpos);
}
static void
ahd_reset_cmds_pending(struct ahd_softc *ahd)
{
struct scb *scb;
ahd_mode_state saved_modes;
u_int pending_cmds;
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN);
/*
* Don't count any commands as outstanding that the
* sequencer has already marked for completion.
*/
ahd_flush_qoutfifo(ahd);
pending_cmds = 0;
LIST_FOREACH(scb, &ahd->pending_scbs, pending_links) {
pending_cmds++;
}
ahd_outw(ahd, CMDS_PENDING, pending_cmds - ahd_qinfifo_count(ahd));
ahd_restore_modes(ahd, saved_modes);
ahd->flags &= ~AHD_UPDATE_PEND_CMDS;
}
static void
ahd_done_with_status(struct ahd_softc *ahd, struct scb *scb, uint32_t status)
{
cam_status ostat;
cam_status cstat;
ostat = ahd_get_transaction_status(scb);
if (ostat == CAM_REQ_INPROG)
ahd_set_transaction_status(scb, status);
cstat = ahd_get_transaction_status(scb);
if (cstat != CAM_REQ_CMP)
ahd_freeze_scb(scb);
ahd_done(ahd, scb);
}
int
ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status,
ahd_search_action action)
{
struct scb *scb;
struct scb *mk_msg_scb;
struct scb *prev_scb;
ahd_mode_state saved_modes;
u_int qinstart;
u_int qinpos;
u_int qintail;
u_int tid_next;
u_int tid_prev;
u_int scbid;
u_int seq_flags2;
u_int savedscbptr;
uint32_t busaddr;
int found;
int targets;
/* Must be in CCHAN mode */
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN);
/*
* Halt any pending SCB DMA. The sequencer will reinitiate
* this dma if the qinfifo is not empty once we unpause.
*/
if ((ahd_inb(ahd, CCSCBCTL) & (CCARREN|CCSCBEN|CCSCBDIR))
== (CCARREN|CCSCBEN|CCSCBDIR)) {
ahd_outb(ahd, CCSCBCTL,
ahd_inb(ahd, CCSCBCTL) & ~(CCARREN|CCSCBEN));
while ((ahd_inb(ahd, CCSCBCTL) & (CCARREN|CCSCBEN)) != 0)
;
}
/* Determine sequencer's position in the qinfifo. */
qintail = AHD_QIN_WRAP(ahd->qinfifonext);
qinstart = ahd_get_snscb_qoff(ahd);
qinpos = AHD_QIN_WRAP(qinstart);
found = 0;
prev_scb = NULL;
if (action == SEARCH_PRINT) {
printk("qinstart = %d qinfifonext = %d\nQINFIFO:",
qinstart, ahd->qinfifonext);
}
/*
* Start with an empty queue. Entries that are not chosen
* for removal will be re-added to the queue as we go.
*/
ahd->qinfifonext = qinstart;
busaddr = ahd_le32toh(ahd->next_queued_hscb->hscb_busaddr);
ahd_outl(ahd, NEXT_QUEUED_SCB_ADDR, busaddr);
while (qinpos != qintail) {
scb = ahd_lookup_scb(ahd, ahd->qinfifo[qinpos]);
if (scb == NULL) {
printk("qinpos = %d, SCB index = %d\n",
qinpos, ahd->qinfifo[qinpos]);
panic("Loop 1\n");
}
if (ahd_match_scb(ahd, scb, target, channel, lun, tag, role)) {
/*
* We found an scb that needs to be acted on.
*/
found++;
switch (action) {
case SEARCH_COMPLETE:
if ((scb->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB in qinfifo\n");
ahd_done_with_status(ahd, scb, status);
fallthrough;
case SEARCH_REMOVE:
break;
case SEARCH_PRINT:
printk(" 0x%x", ahd->qinfifo[qinpos]);
fallthrough;
case SEARCH_COUNT:
ahd_qinfifo_requeue(ahd, prev_scb, scb);
prev_scb = scb;
break;
}
} else {
ahd_qinfifo_requeue(ahd, prev_scb, scb);
prev_scb = scb;
}
qinpos = AHD_QIN_WRAP(qinpos+1);
}
ahd_set_hnscb_qoff(ahd, ahd->qinfifonext);
if (action == SEARCH_PRINT)
printk("\nWAITING_TID_QUEUES:\n");
/*
* Search waiting for selection lists. We traverse the
* list of "their ids" waiting for selection and, if
* appropriate, traverse the SCBs of each "their id"
* looking for matches.
*/
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
seq_flags2 = ahd_inb(ahd, SEQ_FLAGS2);
if ((seq_flags2 & PENDING_MK_MESSAGE) != 0) {
scbid = ahd_inw(ahd, MK_MESSAGE_SCB);
mk_msg_scb = ahd_lookup_scb(ahd, scbid);
} else
mk_msg_scb = NULL;
savedscbptr = ahd_get_scbptr(ahd);
tid_next = ahd_inw(ahd, WAITING_TID_HEAD);
tid_prev = SCB_LIST_NULL;
targets = 0;
for (scbid = tid_next; !SCBID_IS_NULL(scbid); scbid = tid_next) {
u_int tid_head;
u_int tid_tail;
targets++;
if (targets > AHD_NUM_TARGETS)
panic("TID LIST LOOP");
if (scbid >= ahd->scb_data.numscbs) {
printk("%s: Waiting TID List inconsistency. "
"SCB index == 0x%x, yet numscbs == 0x%x.",
ahd_name(ahd), scbid, ahd->scb_data.numscbs);
ahd_dump_card_state(ahd);
panic("for safety");
}
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("%s: SCB = 0x%x Not Active!\n",
ahd_name(ahd), scbid);
panic("Waiting TID List traversal\n");
}
ahd_set_scbptr(ahd, scbid);
tid_next = ahd_inw_scbram(ahd, SCB_NEXT2);
if (ahd_match_scb(ahd, scb, target, channel, CAM_LUN_WILDCARD,
SCB_LIST_NULL, ROLE_UNKNOWN) == 0) {
tid_prev = scbid;
continue;
}
/*
* We found a list of scbs that needs to be searched.
*/
if (action == SEARCH_PRINT)
printk(" %d ( ", SCB_GET_TARGET(ahd, scb));
tid_head = scbid;
found += ahd_search_scb_list(ahd, target, channel,
lun, tag, role, status,
action, &tid_head, &tid_tail,
SCB_GET_TARGET(ahd, scb));
/*
* Check any MK_MESSAGE SCB that is still waiting to
* enter this target's waiting for selection queue.
*/
if (mk_msg_scb != NULL
&& ahd_match_scb(ahd, mk_msg_scb, target, channel,
lun, tag, role)) {
/*
* We found an scb that needs to be acted on.
*/
found++;
switch (action) {
case SEARCH_COMPLETE:
if ((mk_msg_scb->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB pending MK_MSG\n");
ahd_done_with_status(ahd, mk_msg_scb, status);
fallthrough;
case SEARCH_REMOVE:
{
u_int tail_offset;
printk("Removing MK_MSG scb\n");
/*
* Reset our tail to the tail of the
* main per-target list.
*/
tail_offset = WAITING_SCB_TAILS
+ (2 * SCB_GET_TARGET(ahd, mk_msg_scb));
ahd_outw(ahd, tail_offset, tid_tail);
seq_flags2 &= ~PENDING_MK_MESSAGE;
ahd_outb(ahd, SEQ_FLAGS2, seq_flags2);
ahd_outw(ahd, CMDS_PENDING,
ahd_inw(ahd, CMDS_PENDING)-1);
mk_msg_scb = NULL;
break;
}
case SEARCH_PRINT:
printk(" 0x%x", SCB_GET_TAG(scb));
fallthrough;
case SEARCH_COUNT:
break;
}
}
if (mk_msg_scb != NULL
&& SCBID_IS_NULL(tid_head)
&& ahd_match_scb(ahd, scb, target, channel, CAM_LUN_WILDCARD,
SCB_LIST_NULL, ROLE_UNKNOWN)) {
/*
* When removing the last SCB for a target
* queue with a pending MK_MESSAGE scb, we
* must queue the MK_MESSAGE scb.
*/
printk("Queueing mk_msg_scb\n");
tid_head = ahd_inw(ahd, MK_MESSAGE_SCB);
seq_flags2 &= ~PENDING_MK_MESSAGE;
ahd_outb(ahd, SEQ_FLAGS2, seq_flags2);
mk_msg_scb = NULL;
}
if (tid_head != scbid)
ahd_stitch_tid_list(ahd, tid_prev, tid_head, tid_next);
if (!SCBID_IS_NULL(tid_head))
tid_prev = tid_head;
if (action == SEARCH_PRINT)
printk(")\n");
}
/* Restore saved state. */
ahd_set_scbptr(ahd, savedscbptr);
ahd_restore_modes(ahd, saved_modes);
return (found);
}
static int
ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status,
ahd_search_action action, u_int *list_head,
u_int *list_tail, u_int tid)
{
struct scb *scb;
u_int scbid;
u_int next;
u_int prev;
int found;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
found = 0;
prev = SCB_LIST_NULL;
next = *list_head;
*list_tail = SCB_LIST_NULL;
for (scbid = next; !SCBID_IS_NULL(scbid); scbid = next) {
if (scbid >= ahd->scb_data.numscbs) {
printk("%s:SCB List inconsistency. "
"SCB == 0x%x, yet numscbs == 0x%x.",
ahd_name(ahd), scbid, ahd->scb_data.numscbs);
ahd_dump_card_state(ahd);
panic("for safety");
}
scb = ahd_lookup_scb(ahd, scbid);
if (scb == NULL) {
printk("%s: SCB = %d Not Active!\n",
ahd_name(ahd), scbid);
panic("Waiting List traversal\n");
}
ahd_set_scbptr(ahd, scbid);
*list_tail = scbid;
next = ahd_inw_scbram(ahd, SCB_NEXT);
if (ahd_match_scb(ahd, scb, target, channel,
lun, SCB_LIST_NULL, role) == 0) {
prev = scbid;
continue;
}
found++;
switch (action) {
case SEARCH_COMPLETE:
if ((scb->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB in Waiting List\n");
ahd_done_with_status(ahd, scb, status);
fallthrough;
case SEARCH_REMOVE:
ahd_rem_wscb(ahd, scbid, prev, next, tid);
*list_tail = prev;
if (SCBID_IS_NULL(prev))
*list_head = next;
break;
case SEARCH_PRINT:
printk("0x%x ", scbid);
fallthrough;
case SEARCH_COUNT:
prev = scbid;
break;
}
if (found > AHD_SCB_MAX)
panic("SCB LIST LOOP");
}
if (action == SEARCH_COMPLETE
|| action == SEARCH_REMOVE)
ahd_outw(ahd, CMDS_PENDING, ahd_inw(ahd, CMDS_PENDING) - found);
return (found);
}
static void
ahd_stitch_tid_list(struct ahd_softc *ahd, u_int tid_prev,
u_int tid_cur, u_int tid_next)
{
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
if (SCBID_IS_NULL(tid_cur)) {
/* Bypass current TID list */
if (SCBID_IS_NULL(tid_prev)) {
ahd_outw(ahd, WAITING_TID_HEAD, tid_next);
} else {
ahd_set_scbptr(ahd, tid_prev);
ahd_outw(ahd, SCB_NEXT2, tid_next);
}
if (SCBID_IS_NULL(tid_next))
ahd_outw(ahd, WAITING_TID_TAIL, tid_prev);
} else {
/* Stitch through tid_cur */
if (SCBID_IS_NULL(tid_prev)) {
ahd_outw(ahd, WAITING_TID_HEAD, tid_cur);
} else {
ahd_set_scbptr(ahd, tid_prev);
ahd_outw(ahd, SCB_NEXT2, tid_cur);
}
ahd_set_scbptr(ahd, tid_cur);
ahd_outw(ahd, SCB_NEXT2, tid_next);
if (SCBID_IS_NULL(tid_next))
ahd_outw(ahd, WAITING_TID_TAIL, tid_cur);
}
}
/*
* Manipulate the waiting for selection list and return the
* scb that follows the one that we remove.
*/
static u_int
ahd_rem_wscb(struct ahd_softc *ahd, u_int scbid,
u_int prev, u_int next, u_int tid)
{
u_int tail_offset;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
if (!SCBID_IS_NULL(prev)) {
ahd_set_scbptr(ahd, prev);
ahd_outw(ahd, SCB_NEXT, next);
}
/*
* SCBs that have MK_MESSAGE set in them may
* cause the tail pointer to be updated without
* setting the next pointer of the previous tail.
* Only clear the tail if the removed SCB was
* the tail.
*/
tail_offset = WAITING_SCB_TAILS + (2 * tid);
if (SCBID_IS_NULL(next)
&& ahd_inw(ahd, tail_offset) == scbid)
ahd_outw(ahd, tail_offset, prev);
ahd_add_scb_to_free_list(ahd, scbid);
return (next);
}
/*
* Add the SCB as selected by SCBPTR onto the on chip list of
* free hardware SCBs. This list is empty/unused if we are not
* performing SCB paging.
*/
static void
ahd_add_scb_to_free_list(struct ahd_softc *ahd, u_int scbid)
{
/* XXX Need some other mechanism to designate "free". */
/*
* Invalidate the tag so that our abort
* routines don't think it's active.
ahd_outb(ahd, SCB_TAG, SCB_LIST_NULL);
*/
}
/******************************** Error Handling ******************************/
/*
* Abort all SCBs that match the given description (target/channel/lun/tag),
* setting their status to the passed in status if the status has not already
* been modified from CAM_REQ_INPROG. This routine assumes that the sequencer
* is paused before it is called.
*/
static int
ahd_abort_scbs(struct ahd_softc *ahd, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status)
{
struct scb *scbp;
struct scb *scbp_next;
u_int i, j;
u_int maxtarget;
u_int minlun;
u_int maxlun;
int found;
ahd_mode_state saved_modes;
/* restore this when we're done */
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
found = ahd_search_qinfifo(ahd, target, channel, lun, SCB_LIST_NULL,
role, CAM_REQUEUE_REQ, SEARCH_COMPLETE);
/*
* Clean out the busy target table for any untagged commands.
*/
i = 0;
maxtarget = 16;
if (target != CAM_TARGET_WILDCARD) {
i = target;
if (channel == 'B')
i += 8;
maxtarget = i + 1;
}
if (lun == CAM_LUN_WILDCARD) {
minlun = 0;
maxlun = AHD_NUM_LUNS_NONPKT;
} else if (lun >= AHD_NUM_LUNS_NONPKT) {
minlun = maxlun = 0;
} else {
minlun = lun;
maxlun = lun + 1;
}
if (role != ROLE_TARGET) {
for (;i < maxtarget; i++) {
for (j = minlun;j < maxlun; j++) {
u_int scbid;
u_int tcl;
tcl = BUILD_TCL_RAW(i, 'A', j);
scbid = ahd_find_busy_tcl(ahd, tcl);
scbp = ahd_lookup_scb(ahd, scbid);
if (scbp == NULL
|| ahd_match_scb(ahd, scbp, target, channel,
lun, tag, role) == 0)
continue;
ahd_unbusy_tcl(ahd, BUILD_TCL_RAW(i, 'A', j));
}
}
}
/*
* Don't abort commands that have already completed,
* but haven't quite made it up to the host yet.
*/
ahd_flush_qoutfifo(ahd);
/*
* Go through the pending CCB list and look for
* commands for this target that are still active.
* These are other tagged commands that were
* disconnected when the reset occurred.
*/
scbp_next = LIST_FIRST(&ahd->pending_scbs);
while (scbp_next != NULL) {
scbp = scbp_next;
scbp_next = LIST_NEXT(scbp, pending_links);
if (ahd_match_scb(ahd, scbp, target, channel, lun, tag, role)) {
cam_status ostat;
ostat = ahd_get_transaction_status(scbp);
if (ostat == CAM_REQ_INPROG)
ahd_set_transaction_status(scbp, status);
if (ahd_get_transaction_status(scbp) != CAM_REQ_CMP)
ahd_freeze_scb(scbp);
if ((scbp->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB on pending list\n");
ahd_done(ahd, scbp);
found++;
}
}
ahd_restore_modes(ahd, saved_modes);
ahd_platform_abort_scbs(ahd, target, channel, lun, tag, role, status);
ahd->flags |= AHD_UPDATE_PEND_CMDS;
return found;
}
static void
ahd_reset_current_bus(struct ahd_softc *ahd)
{
uint8_t scsiseq;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
ahd_outb(ahd, SIMODE1, ahd_inb(ahd, SIMODE1) & ~ENSCSIRST);
scsiseq = ahd_inb(ahd, SCSISEQ0) & ~(ENSELO|ENARBO|SCSIRSTO);
ahd_outb(ahd, SCSISEQ0, scsiseq | SCSIRSTO);
ahd_flush_device_writes(ahd);
ahd_delay(AHD_BUSRESET_DELAY);
/* Turn off the bus reset */
ahd_outb(ahd, SCSISEQ0, scsiseq);
ahd_flush_device_writes(ahd);
ahd_delay(AHD_BUSRESET_DELAY);
if ((ahd->bugs & AHD_SCSIRST_BUG) != 0) {
/*
* 2A Razor #474
* Certain chip state is not cleared for
* SCSI bus resets that we initiate, so
* we must reset the chip.
*/
ahd_reset(ahd, /*reinit*/TRUE);
ahd_intr_enable(ahd, /*enable*/TRUE);
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
}
ahd_clear_intstat(ahd);
}
int
ahd_reset_channel(struct ahd_softc *ahd, char channel, int initiate_reset)
{
struct ahd_devinfo caminfo;
u_int initiator;
u_int target;
u_int max_scsiid;
int found;
u_int fifo;
u_int next_fifo;
uint8_t scsiseq;
/*
* Check if the last bus reset is cleared
*/
if (ahd->flags & AHD_BUS_RESET_ACTIVE) {
printk("%s: bus reset still active\n",
ahd_name(ahd));
return 0;
}
ahd->flags |= AHD_BUS_RESET_ACTIVE;
ahd->pending_device = NULL;
ahd_compile_devinfo(&caminfo,
CAM_TARGET_WILDCARD,
CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD,
channel, ROLE_UNKNOWN);
ahd_pause(ahd);
/* Make sure the sequencer is in a safe location. */
ahd_clear_critical_section(ahd);
/*
* Run our command complete fifos to ensure that we perform
* completion processing on any commands that 'completed'
* before the reset occurred.
*/
ahd_run_qoutfifo(ahd);
#ifdef AHD_TARGET_MODE
if ((ahd->flags & AHD_TARGETROLE) != 0) {
ahd_run_tqinfifo(ahd, /*paused*/TRUE);
}
#endif
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
/*
* Disable selections so no automatic hardware
* functions will modify chip state.
*/
ahd_outb(ahd, SCSISEQ0, 0);
ahd_outb(ahd, SCSISEQ1, 0);
/*
* Safely shut down our DMA engines. Always start with
* the FIFO that is not currently active (if any are
* actively connected).
*/
next_fifo = fifo = ahd_inb(ahd, DFFSTAT) & CURRFIFO;
if (next_fifo > CURRFIFO_1)
/* If disconneced, arbitrarily start with FIFO1. */
next_fifo = fifo = 0;
do {
next_fifo ^= CURRFIFO_1;
ahd_set_modes(ahd, next_fifo, next_fifo);
ahd_outb(ahd, DFCNTRL,
ahd_inb(ahd, DFCNTRL) & ~(SCSIEN|HDMAEN));
while ((ahd_inb(ahd, DFCNTRL) & HDMAENACK) != 0)
ahd_delay(10);
/*
* Set CURRFIFO to the now inactive channel.
*/
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd_outb(ahd, DFFSTAT, next_fifo);
} while (next_fifo != fifo);
/*
* Reset the bus if we are initiating this reset
*/
ahd_clear_msg_state(ahd);
ahd_outb(ahd, SIMODE1,
ahd_inb(ahd, SIMODE1) & ~(ENBUSFREE|ENSCSIRST));
if (initiate_reset)
ahd_reset_current_bus(ahd);
ahd_clear_intstat(ahd);
/*
* Clean up all the state information for the
* pending transactions on this bus.
*/
found = ahd_abort_scbs(ahd, CAM_TARGET_WILDCARD, channel,
CAM_LUN_WILDCARD, SCB_LIST_NULL,
ROLE_UNKNOWN, CAM_SCSI_BUS_RESET);
/*
* Cleanup anything left in the FIFOs.
*/
ahd_clear_fifo(ahd, 0);
ahd_clear_fifo(ahd, 1);
/*
* Clear SCSI interrupt status
*/
ahd_outb(ahd, CLRSINT1, CLRSCSIRSTI);
/*
* Reenable selections
*/
ahd_outb(ahd, SIMODE1, ahd_inb(ahd, SIMODE1) | ENSCSIRST);
scsiseq = ahd_inb(ahd, SCSISEQ_TEMPLATE);
ahd_outb(ahd, SCSISEQ1, scsiseq & (ENSELI|ENRSELI|ENAUTOATNP));
max_scsiid = (ahd->features & AHD_WIDE) ? 15 : 7;
#ifdef AHD_TARGET_MODE
/*
* Send an immediate notify ccb to all target more peripheral
* drivers affected by this action.
*/
for (target = 0; target <= max_scsiid; target++) {
struct ahd_tmode_tstate* tstate;
u_int lun;
tstate = ahd->enabled_targets[target];
if (tstate == NULL)
continue;
for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
struct ahd_tmode_lstate* lstate;
lstate = tstate->enabled_luns[lun];
if (lstate == NULL)
continue;
ahd_queue_lstate_event(ahd, lstate, CAM_TARGET_WILDCARD,
EVENT_TYPE_BUS_RESET, /*arg*/0);
ahd_send_lstate_events(ahd, lstate);
}
}
#endif
/*
* Revert to async/narrow transfers until we renegotiate.
*/
for (target = 0; target <= max_scsiid; target++) {
if (ahd->enabled_targets[target] == NULL)
continue;
for (initiator = 0; initiator <= max_scsiid; initiator++) {
struct ahd_devinfo devinfo;
ahd_compile_devinfo(&devinfo, target, initiator,
CAM_LUN_WILDCARD,
'A', ROLE_UNKNOWN);
ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_CUR, /*paused*/TRUE);
ahd_set_syncrate(ahd, &devinfo, /*period*/0,
/*offset*/0, /*ppr_options*/0,
AHD_TRANS_CUR, /*paused*/TRUE);
}
}
/* Notify the XPT that a bus reset occurred */
ahd_send_async(ahd, caminfo.channel, CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD, AC_BUS_RESET);
ahd_restart(ahd);
return (found);
}
/**************************** Statistics Processing ***************************/
static void
ahd_stat_timer(struct timer_list *t)
{
struct ahd_softc *ahd = from_timer(ahd, t, stat_timer);
u_long s;
int enint_coal;
ahd_lock(ahd, &s);
enint_coal = ahd->hs_mailbox & ENINT_COALESCE;
if (ahd->cmdcmplt_total > ahd->int_coalescing_threshold)
enint_coal |= ENINT_COALESCE;
else if (ahd->cmdcmplt_total < ahd->int_coalescing_stop_threshold)
enint_coal &= ~ENINT_COALESCE;
if (enint_coal != (ahd->hs_mailbox & ENINT_COALESCE)) {
ahd_enable_coalescing(ahd, enint_coal);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_INT_COALESCING) != 0)
printk("%s: Interrupt coalescing "
"now %sabled. Cmds %d\n",
ahd_name(ahd),
(enint_coal & ENINT_COALESCE) ? "en" : "dis",
ahd->cmdcmplt_total);
#endif
}
ahd->cmdcmplt_bucket = (ahd->cmdcmplt_bucket+1) & (AHD_STAT_BUCKETS-1);
ahd->cmdcmplt_total -= ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket];
ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket] = 0;
ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US);
ahd_unlock(ahd, &s);
}
/****************************** Status Processing *****************************/
static void
ahd_handle_scsi_status(struct ahd_softc *ahd, struct scb *scb)
{
struct hardware_scb *hscb;
int paused;
/*
* The sequencer freezes its select-out queue
* anytime a SCSI status error occurs. We must
* handle the error and increment our qfreeze count
* to allow the sequencer to continue. We don't
* bother clearing critical sections here since all
* operations are on data structures that the sequencer
* is not touching once the queue is frozen.
*/
hscb = scb->hscb;
if (ahd_is_paused(ahd)) {
paused = 1;
} else {
paused = 0;
ahd_pause(ahd);
}
/* Freeze the queue until the client sees the error. */
ahd_freeze_devq(ahd, scb);
ahd_freeze_scb(scb);
ahd->qfreeze_cnt++;
ahd_outw(ahd, KERNEL_QFREEZE_COUNT, ahd->qfreeze_cnt);
if (paused == 0)
ahd_unpause(ahd);
/* Don't want to clobber the original sense code */
if ((scb->flags & SCB_SENSE) != 0) {
/*
* Clear the SCB_SENSE Flag and perform
* a normal command completion.
*/
scb->flags &= ~SCB_SENSE;
ahd_set_transaction_status(scb, CAM_AUTOSENSE_FAIL);
ahd_done(ahd, scb);
return;
}
ahd_set_transaction_status(scb, CAM_SCSI_STATUS_ERROR);
ahd_set_scsi_status(scb, hscb->shared_data.istatus.scsi_status);
switch (hscb->shared_data.istatus.scsi_status) {
case STATUS_PKT_SENSE:
{
struct scsi_status_iu_header *siu;
ahd_sync_sense(ahd, scb, BUS_DMASYNC_POSTREAD);
siu = (struct scsi_status_iu_header *)scb->sense_data;
ahd_set_scsi_status(scb, siu->status);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_SENSE) != 0) {
ahd_print_path(ahd, scb);
printk("SCB 0x%x Received PKT Status of 0x%x\n",
SCB_GET_TAG(scb), siu->status);
printk("\tflags = 0x%x, sense len = 0x%x, "
"pktfail = 0x%x\n",
siu->flags, scsi_4btoul(siu->sense_length),
scsi_4btoul(siu->pkt_failures_length));
}
#endif
if ((siu->flags & SIU_RSPVALID) != 0) {
ahd_print_path(ahd, scb);
if (scsi_4btoul(siu->pkt_failures_length) < 4) {
printk("Unable to parse pkt_failures\n");
} else {
switch (SIU_PKTFAIL_CODE(siu)) {
case SIU_PFC_NONE:
printk("No packet failure found\n");
break;
case SIU_PFC_CIU_FIELDS_INVALID:
printk("Invalid Command IU Field\n");
break;
case SIU_PFC_TMF_NOT_SUPPORTED:
printk("TMF not supported\n");
break;
case SIU_PFC_TMF_FAILED:
printk("TMF failed\n");
break;
case SIU_PFC_INVALID_TYPE_CODE:
printk("Invalid L_Q Type code\n");
break;
case SIU_PFC_ILLEGAL_REQUEST:
printk("Illegal request\n");
break;
default:
break;
}
}
if (siu->status == SAM_STAT_GOOD)
ahd_set_transaction_status(scb,
CAM_REQ_CMP_ERR);
}
if ((siu->flags & SIU_SNSVALID) != 0) {
scb->flags |= SCB_PKT_SENSE;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_SENSE) != 0)
printk("Sense data available\n");
#endif
}
ahd_done(ahd, scb);
break;
}
case SAM_STAT_COMMAND_TERMINATED:
case SAM_STAT_CHECK_CONDITION:
{
struct ahd_devinfo devinfo;
struct ahd_dma_seg *sg;
struct scsi_sense *sc;
struct ahd_initiator_tinfo *targ_info;
struct ahd_tmode_tstate *tstate;
struct ahd_transinfo *tinfo;
#ifdef AHD_DEBUG
if (ahd_debug & AHD_SHOW_SENSE) {
ahd_print_path(ahd, scb);
printk("SCB %d: requests Check Status\n",
SCB_GET_TAG(scb));
}
#endif
if (ahd_perform_autosense(scb) == 0)
break;
ahd_compile_devinfo(&devinfo, SCB_GET_OUR_ID(scb),
SCB_GET_TARGET(ahd, scb),
SCB_GET_LUN(scb),
SCB_GET_CHANNEL(ahd, scb),
ROLE_INITIATOR);
targ_info = ahd_fetch_transinfo(ahd,
devinfo.channel,
devinfo.our_scsiid,
devinfo.target,
&tstate);
tinfo = &targ_info->curr;
sg = scb->sg_list;
sc = (struct scsi_sense *)hscb->shared_data.idata.cdb;
/*
* Save off the residual if there is one.
*/
ahd_update_residual(ahd, scb);
#ifdef AHD_DEBUG
if (ahd_debug & AHD_SHOW_SENSE) {
ahd_print_path(ahd, scb);
printk("Sending Sense\n");
}
#endif
scb->sg_count = 0;
sg = ahd_sg_setup(ahd, scb, sg, ahd_get_sense_bufaddr(ahd, scb),
ahd_get_sense_bufsize(ahd, scb),
/*last*/TRUE);
sc->opcode = REQUEST_SENSE;
sc->byte2 = 0;
if (tinfo->protocol_version <= SCSI_REV_2
&& SCB_GET_LUN(scb) < 8)
sc->byte2 = SCB_GET_LUN(scb) << 5;
sc->unused[0] = 0;
sc->unused[1] = 0;
sc->length = ahd_get_sense_bufsize(ahd, scb);
sc->control = 0;
/*
* We can't allow the target to disconnect.
* This will be an untagged transaction and
* having the target disconnect will make this
* transaction indestinguishable from outstanding
* tagged transactions.
*/
hscb->control = 0;
/*
* This request sense could be because the
* the device lost power or in some other
* way has lost our transfer negotiations.
* Renegotiate if appropriate. Unit attention
* errors will be reported before any data
* phases occur.
*/
if (ahd_get_residual(scb) == ahd_get_transfer_length(scb)) {
ahd_update_neg_request(ahd, &devinfo,
tstate, targ_info,
AHD_NEG_IF_NON_ASYNC);
}
if (tstate->auto_negotiate & devinfo.target_mask) {
hscb->control |= MK_MESSAGE;
scb->flags &=
~(SCB_NEGOTIATE|SCB_ABORT|SCB_DEVICE_RESET);
scb->flags |= SCB_AUTO_NEGOTIATE;
}
hscb->cdb_len = sizeof(*sc);
ahd_setup_data_scb(ahd, scb);
scb->flags |= SCB_SENSE;
ahd_queue_scb(ahd, scb);
break;
}
case SAM_STAT_GOOD:
printk("%s: Interrupted for status of 0???\n",
ahd_name(ahd));
fallthrough;
default:
ahd_done(ahd, scb);
break;
}
}
static void
ahd_handle_scb_status(struct ahd_softc *ahd, struct scb *scb)
{
if (scb->hscb->shared_data.istatus.scsi_status != 0) {
ahd_handle_scsi_status(ahd, scb);
} else {
ahd_calc_residual(ahd, scb);
ahd_done(ahd, scb);
}
}
/*
* Calculate the residual for a just completed SCB.
*/
static void
ahd_calc_residual(struct ahd_softc *ahd, struct scb *scb)
{
struct hardware_scb *hscb;
struct initiator_status *spkt;
uint32_t sgptr;
uint32_t resid_sgptr;
uint32_t resid;
/*
* 5 cases.
* 1) No residual.
* SG_STATUS_VALID clear in sgptr.
* 2) Transferless command
* 3) Never performed any transfers.
* sgptr has SG_FULL_RESID set.
* 4) No residual but target did not
* save data pointers after the
* last transfer, so sgptr was
* never updated.
* 5) We have a partial residual.
* Use residual_sgptr to determine
* where we are.
*/
hscb = scb->hscb;
sgptr = ahd_le32toh(hscb->sgptr);
if ((sgptr & SG_STATUS_VALID) == 0)
/* Case 1 */
return;
sgptr &= ~SG_STATUS_VALID;
if ((sgptr & SG_LIST_NULL) != 0)
/* Case 2 */
return;
/*
* Residual fields are the same in both
* target and initiator status packets,
* so we can always use the initiator fields
* regardless of the role for this SCB.
*/
spkt = &hscb->shared_data.istatus;
resid_sgptr = ahd_le32toh(spkt->residual_sgptr);
if ((sgptr & SG_FULL_RESID) != 0) {
/* Case 3 */
resid = ahd_get_transfer_length(scb);
} else if ((resid_sgptr & SG_LIST_NULL) != 0) {
/* Case 4 */
return;
} else if ((resid_sgptr & SG_OVERRUN_RESID) != 0) {
ahd_print_path(ahd, scb);
printk("data overrun detected Tag == 0x%x.\n",
SCB_GET_TAG(scb));
ahd_freeze_devq(ahd, scb);
ahd_set_transaction_status(scb, CAM_DATA_RUN_ERR);
ahd_freeze_scb(scb);
return;
} else if ((resid_sgptr & ~SG_PTR_MASK) != 0) {
panic("Bogus resid sgptr value 0x%x\n", resid_sgptr);
/* NOTREACHED */
} else {
struct ahd_dma_seg *sg;
/*
* Remainder of the SG where the transfer
* stopped.
*/
resid = ahd_le32toh(spkt->residual_datacnt) & AHD_SG_LEN_MASK;
sg = ahd_sg_bus_to_virt(ahd, scb, resid_sgptr & SG_PTR_MASK);
/* The residual sg_ptr always points to the next sg */
sg--;
/*
* Add up the contents of all residual
* SG segments that are after the SG where
* the transfer stopped.
*/
while ((ahd_le32toh(sg->len) & AHD_DMA_LAST_SEG) == 0) {
sg++;
resid += ahd_le32toh(sg->len) & AHD_SG_LEN_MASK;
}
}
if ((scb->flags & SCB_SENSE) == 0)
ahd_set_residual(scb, resid);
else
ahd_set_sense_residual(scb, resid);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MISC) != 0) {
ahd_print_path(ahd, scb);
printk("Handled %sResidual of %d bytes\n",
(scb->flags & SCB_SENSE) ? "Sense " : "", resid);
}
#endif
}
/******************************* Target Mode **********************************/
#ifdef AHD_TARGET_MODE
/*
* Add a target mode event to this lun's queue
*/
static void
ahd_queue_lstate_event(struct ahd_softc *ahd, struct ahd_tmode_lstate *lstate,
u_int initiator_id, u_int event_type, u_int event_arg)
{
struct ahd_tmode_event *event;
int pending;
xpt_freeze_devq(lstate->path, /*count*/1);
if (lstate->event_w_idx >= lstate->event_r_idx)
pending = lstate->event_w_idx - lstate->event_r_idx;
else
pending = AHD_TMODE_EVENT_BUFFER_SIZE + 1
- (lstate->event_r_idx - lstate->event_w_idx);
if (event_type == EVENT_TYPE_BUS_RESET
|| event_type == TARGET_RESET) {
/*
* Any earlier events are irrelevant, so reset our buffer.
* This has the effect of allowing us to deal with reset
* floods (an external device holding down the reset line)
* without losing the event that is really interesting.
*/
lstate->event_r_idx = 0;
lstate->event_w_idx = 0;
xpt_release_devq(lstate->path, pending, /*runqueue*/FALSE);
}
if (pending == AHD_TMODE_EVENT_BUFFER_SIZE) {
xpt_print_path(lstate->path);
printk("immediate event %x:%x lost\n",
lstate->event_buffer[lstate->event_r_idx].event_type,
lstate->event_buffer[lstate->event_r_idx].event_arg);
lstate->event_r_idx++;
if (lstate->event_r_idx == AHD_TMODE_EVENT_BUFFER_SIZE)
lstate->event_r_idx = 0;
xpt_release_devq(lstate->path, /*count*/1, /*runqueue*/FALSE);
}
event = &lstate->event_buffer[lstate->event_w_idx];
event->initiator_id = initiator_id;
event->event_type = event_type;
event->event_arg = event_arg;
lstate->event_w_idx++;
if (lstate->event_w_idx == AHD_TMODE_EVENT_BUFFER_SIZE)
lstate->event_w_idx = 0;
}
/*
* Send any target mode events queued up waiting
* for immediate notify resources.
*/
void
ahd_send_lstate_events(struct ahd_softc *ahd, struct ahd_tmode_lstate *lstate)
{
struct ccb_hdr *ccbh;
struct ccb_immed_notify *inot;
while (lstate->event_r_idx != lstate->event_w_idx
&& (ccbh = SLIST_FIRST(&lstate->immed_notifies)) != NULL) {
struct ahd_tmode_event *event;
event = &lstate->event_buffer[lstate->event_r_idx];
SLIST_REMOVE_HEAD(&lstate->immed_notifies, sim_links.sle);
inot = (struct ccb_immed_notify *)ccbh;
switch (event->event_type) {
case EVENT_TYPE_BUS_RESET:
ccbh->status = CAM_SCSI_BUS_RESET|CAM_DEV_QFRZN;
break;
default:
ccbh->status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
inot->message_args[0] = event->event_type;
inot->message_args[1] = event->event_arg;
break;
}
inot->initiator_id = event->initiator_id;
inot->sense_len = 0;
xpt_done((union ccb *)inot);
lstate->event_r_idx++;
if (lstate->event_r_idx == AHD_TMODE_EVENT_BUFFER_SIZE)
lstate->event_r_idx = 0;
}
}
#endif
/******************** Sequencer Program Patching/Download *********************/
#ifdef AHD_DUMP_SEQ
void
ahd_dumpseq(struct ahd_softc* ahd)
{
int i;
int max_prog;
max_prog = 2048;
ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS|FASTMODE|LOADRAM);
ahd_outw(ahd, PRGMCNT, 0);
for (i = 0; i < max_prog; i++) {
uint8_t ins_bytes[4];
ahd_insb(ahd, SEQRAM, ins_bytes, 4);
printk("0x%08x\n", ins_bytes[0] << 24
| ins_bytes[1] << 16
| ins_bytes[2] << 8
| ins_bytes[3]);
}
}
#endif
static void
ahd_loadseq(struct ahd_softc *ahd)
{
struct cs cs_table[NUM_CRITICAL_SECTIONS];
u_int begin_set[NUM_CRITICAL_SECTIONS];
u_int end_set[NUM_CRITICAL_SECTIONS];
const struct patch *cur_patch;
u_int cs_count;
u_int cur_cs;
u_int i;
int downloaded;
u_int skip_addr;
u_int sg_prefetch_cnt;
u_int sg_prefetch_cnt_limit;
u_int sg_prefetch_align;
u_int sg_size;
u_int cacheline_mask;
uint8_t download_consts[DOWNLOAD_CONST_COUNT];
if (bootverbose)
printk("%s: Downloading Sequencer Program...",
ahd_name(ahd));
#if DOWNLOAD_CONST_COUNT != 8
#error "Download Const Mismatch"
#endif
/*
* Start out with 0 critical sections
* that apply to this firmware load.
*/
cs_count = 0;
cur_cs = 0;
memset(begin_set, 0, sizeof(begin_set));
memset(end_set, 0, sizeof(end_set));
/*
* Setup downloadable constant table.
*
* The computation for the S/G prefetch variables is
* a bit complicated. We would like to always fetch
* in terms of cachelined sized increments. However,
* if the cacheline is not an even multiple of the
* SG element size or is larger than our SG RAM, using
* just the cache size might leave us with only a portion
* of an SG element at the tail of a prefetch. If the
* cacheline is larger than our S/G prefetch buffer less
* the size of an SG element, we may round down to a cacheline
* that doesn't contain any or all of the S/G of interest
* within the bounds of our S/G ram. Provide variables to
* the sequencer that will allow it to handle these edge
* cases.
*/
/* Start by aligning to the nearest cacheline. */
sg_prefetch_align = ahd->pci_cachesize;
if (sg_prefetch_align == 0)
sg_prefetch_align = 8;
/* Round down to the nearest power of 2. */
while (powerof2(sg_prefetch_align) == 0)
sg_prefetch_align--;
cacheline_mask = sg_prefetch_align - 1;
/*
* If the cacheline boundary is greater than half our prefetch RAM
* we risk not being able to fetch even a single complete S/G
* segment if we align to that boundary.
*/
if (sg_prefetch_align > CCSGADDR_MAX/2)
sg_prefetch_align = CCSGADDR_MAX/2;
/* Start by fetching a single cacheline. */
sg_prefetch_cnt = sg_prefetch_align;
/*
* Increment the prefetch count by cachelines until
* at least one S/G element will fit.
*/
sg_size = sizeof(struct ahd_dma_seg);
if ((ahd->flags & AHD_64BIT_ADDRESSING) != 0)
sg_size = sizeof(struct ahd_dma64_seg);
while (sg_prefetch_cnt < sg_size)
sg_prefetch_cnt += sg_prefetch_align;
/*
* If the cacheline is not an even multiple of
* the S/G size, we may only get a partial S/G when
* we align. Add a cacheline if this is the case.
*/
if ((sg_prefetch_align % sg_size) != 0
&& (sg_prefetch_cnt < CCSGADDR_MAX))
sg_prefetch_cnt += sg_prefetch_align;
/*
* Lastly, compute a value that the sequencer can use
* to determine if the remainder of the CCSGRAM buffer
* has a full S/G element in it.
*/
sg_prefetch_cnt_limit = -(sg_prefetch_cnt - sg_size + 1);
download_consts[SG_PREFETCH_CNT] = sg_prefetch_cnt;
download_consts[SG_PREFETCH_CNT_LIMIT] = sg_prefetch_cnt_limit;
download_consts[SG_PREFETCH_ALIGN_MASK] = ~(sg_prefetch_align - 1);
download_consts[SG_PREFETCH_ADDR_MASK] = (sg_prefetch_align - 1);
download_consts[SG_SIZEOF] = sg_size;
download_consts[PKT_OVERRUN_BUFOFFSET] =
(ahd->overrun_buf - (uint8_t *)ahd->qoutfifo) / 256;
download_consts[SCB_TRANSFER_SIZE] = SCB_TRANSFER_SIZE_1BYTE_LUN;
download_consts[CACHELINE_MASK] = cacheline_mask;
cur_patch = patches;
downloaded = 0;
skip_addr = 0;
ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS|FASTMODE|LOADRAM);
ahd_outw(ahd, PRGMCNT, 0);
for (i = 0; i < sizeof(seqprog)/4; i++) {
if (ahd_check_patch(ahd, &cur_patch, i, &skip_addr) == 0) {
/*
* Don't download this instruction as it
* is in a patch that was removed.
*/
continue;
}
/*
* Move through the CS table until we find a CS
* that might apply to this instruction.
*/
for (; cur_cs < NUM_CRITICAL_SECTIONS; cur_cs++) {
if (critical_sections[cur_cs].end <= i) {
if (begin_set[cs_count] == TRUE
&& end_set[cs_count] == FALSE) {
cs_table[cs_count].end = downloaded;
end_set[cs_count] = TRUE;
cs_count++;
}
continue;
}
if (critical_sections[cur_cs].begin <= i
&& begin_set[cs_count] == FALSE) {
cs_table[cs_count].begin = downloaded;
begin_set[cs_count] = TRUE;
}
break;
}
ahd_download_instr(ahd, i, download_consts);
downloaded++;
}
ahd->num_critical_sections = cs_count;
if (cs_count != 0) {
cs_count *= sizeof(struct cs);
ahd->critical_sections = kmemdup(cs_table, cs_count, GFP_ATOMIC);
if (ahd->critical_sections == NULL)
panic("ahd_loadseq: Could not malloc");
}
ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS|FASTMODE);
if (bootverbose) {
printk(" %d instructions downloaded\n", downloaded);
printk("%s: Features 0x%x, Bugs 0x%x, Flags 0x%x\n",
ahd_name(ahd), ahd->features, ahd->bugs, ahd->flags);
}
}
static int
ahd_check_patch(struct ahd_softc *ahd, const struct patch **start_patch,
u_int start_instr, u_int *skip_addr)
{
const struct patch *cur_patch;
const struct patch *last_patch;
u_int num_patches;
num_patches = ARRAY_SIZE(patches);
last_patch = &patches[num_patches];
cur_patch = *start_patch;
while (cur_patch < last_patch && start_instr == cur_patch->begin) {
if (cur_patch->patch_func(ahd) == 0) {
/* Start rejecting code */
*skip_addr = start_instr + cur_patch->skip_instr;
cur_patch += cur_patch->skip_patch;
} else {
/* Accepted this patch. Advance to the next
* one and wait for our intruction pointer to
* hit this point.
*/
cur_patch++;
}
}
*start_patch = cur_patch;
if (start_instr < *skip_addr)
/* Still skipping */
return (0);
return (1);
}
static u_int
ahd_resolve_seqaddr(struct ahd_softc *ahd, u_int address)
{
const struct patch *cur_patch;
int address_offset;
u_int skip_addr;
u_int i;
address_offset = 0;
cur_patch = patches;
skip_addr = 0;
for (i = 0; i < address;) {
ahd_check_patch(ahd, &cur_patch, i, &skip_addr);
if (skip_addr > i) {
int end_addr;
end_addr = min(address, skip_addr);
address_offset += end_addr - i;
i = skip_addr;
} else {
i++;
}
}
return (address - address_offset);
}
static void
ahd_download_instr(struct ahd_softc *ahd, u_int instrptr, uint8_t *dconsts)
{
union ins_formats instr;
struct ins_format1 *fmt1_ins;
struct ins_format3 *fmt3_ins;
u_int opcode;
/*
* The firmware is always compiled into a little endian format.
*/
instr.integer = ahd_le32toh(*(uint32_t*)&seqprog[instrptr * 4]);
fmt1_ins = &instr.format1;
fmt3_ins = NULL;
/* Pull the opcode */
opcode = instr.format1.opcode;
switch (opcode) {
case AIC_OP_JMP:
case AIC_OP_JC:
case AIC_OP_JNC:
case AIC_OP_CALL:
case AIC_OP_JNE:
case AIC_OP_JNZ:
case AIC_OP_JE:
case AIC_OP_JZ:
{
fmt3_ins = &instr.format3;
fmt3_ins->address = ahd_resolve_seqaddr(ahd, fmt3_ins->address);
}
fallthrough;
case AIC_OP_OR:
case AIC_OP_AND:
case AIC_OP_XOR:
case AIC_OP_ADD:
case AIC_OP_ADC:
case AIC_OP_BMOV:
if (fmt1_ins->parity != 0) {
fmt1_ins->immediate = dconsts[fmt1_ins->immediate];
}
fmt1_ins->parity = 0;
fallthrough;
case AIC_OP_ROL:
{
int i, count;
/* Calculate odd parity for the instruction */
for (i = 0, count = 0; i < 31; i++) {
uint32_t mask;
mask = 0x01 << i;
if ((instr.integer & mask) != 0)
count++;
}
if ((count & 0x01) == 0)
instr.format1.parity = 1;
/* The sequencer is a little endian cpu */
instr.integer = ahd_htole32(instr.integer);
ahd_outsb(ahd, SEQRAM, instr.bytes, 4);
break;
}
default:
panic("Unknown opcode encountered in seq program");
break;
}
}
static int
ahd_probe_stack_size(struct ahd_softc *ahd)
{
int last_probe;
last_probe = 0;
while (1) {
int i;
/*
* We avoid using 0 as a pattern to avoid
* confusion if the stack implementation
* "back-fills" with zeros when "poping'
* entries.
*/
for (i = 1; i <= last_probe+1; i++) {
ahd_outb(ahd, STACK, i & 0xFF);
ahd_outb(ahd, STACK, (i >> 8) & 0xFF);
}
/* Verify */
for (i = last_probe+1; i > 0; i--) {
u_int stack_entry;
stack_entry = ahd_inb(ahd, STACK)
|(ahd_inb(ahd, STACK) << 8);
if (stack_entry != i)
goto sized;
}
last_probe++;
}
sized:
return (last_probe);
}
int
ahd_print_register(const ahd_reg_parse_entry_t *table, u_int num_entries,
const char *name, u_int address, u_int value,
u_int *cur_column, u_int wrap_point)
{
int printed;
u_int printed_mask;
if (cur_column != NULL && *cur_column >= wrap_point) {
printk("\n");
*cur_column = 0;
}
printed = printk("%s[0x%x]", name, value);
if (table == NULL) {
printed += printk(" ");
*cur_column += printed;
return (printed);
}
printed_mask = 0;
while (printed_mask != 0xFF) {
int entry;
for (entry = 0; entry < num_entries; entry++) {
if (((value & table[entry].mask)
!= table[entry].value)
|| ((printed_mask & table[entry].mask)
== table[entry].mask))
continue;
printed += printk("%s%s",
printed_mask == 0 ? ":(" : "|",
table[entry].name);
printed_mask |= table[entry].mask;
break;
}
if (entry >= num_entries)
break;
}
if (printed_mask != 0)
printed += printk(") ");
else
printed += printk(" ");
if (cur_column != NULL)
*cur_column += printed;
return (printed);
}
void
ahd_dump_card_state(struct ahd_softc *ahd)
{
struct scb *scb;
ahd_mode_state saved_modes;
u_int dffstat;
int paused;
u_int scb_index;
u_int saved_scb_index;
u_int cur_col;
int i;
if (ahd_is_paused(ahd)) {
paused = 1;
} else {
paused = 0;
ahd_pause(ahd);
}
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
printk(">>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<\n"
"%s: Dumping Card State at program address 0x%x Mode 0x%x\n",
ahd_name(ahd),
ahd_inw(ahd, CURADDR),
ahd_build_mode_state(ahd, ahd->saved_src_mode,
ahd->saved_dst_mode));
if (paused)
printk("Card was paused\n");
if (ahd_check_cmdcmpltqueues(ahd))
printk("Completions are pending\n");
/*
* Mode independent registers.
*/
cur_col = 0;
ahd_intstat_print(ahd_inb(ahd, INTSTAT), &cur_col, 50);
ahd_seloid_print(ahd_inb(ahd, SELOID), &cur_col, 50);
ahd_selid_print(ahd_inb(ahd, SELID), &cur_col, 50);
ahd_hs_mailbox_print(ahd_inb(ahd, LOCAL_HS_MAILBOX), &cur_col, 50);
ahd_intctl_print(ahd_inb(ahd, INTCTL), &cur_col, 50);
ahd_seqintstat_print(ahd_inb(ahd, SEQINTSTAT), &cur_col, 50);
ahd_saved_mode_print(ahd_inb(ahd, SAVED_MODE), &cur_col, 50);
ahd_dffstat_print(ahd_inb(ahd, DFFSTAT), &cur_col, 50);
ahd_scsisigi_print(ahd_inb(ahd, SCSISIGI), &cur_col, 50);
ahd_scsiphase_print(ahd_inb(ahd, SCSIPHASE), &cur_col, 50);
ahd_scsibus_print(ahd_inb(ahd, SCSIBUS), &cur_col, 50);
ahd_lastphase_print(ahd_inb(ahd, LASTPHASE), &cur_col, 50);
ahd_scsiseq0_print(ahd_inb(ahd, SCSISEQ0), &cur_col, 50);
ahd_scsiseq1_print(ahd_inb(ahd, SCSISEQ1), &cur_col, 50);
ahd_seqctl0_print(ahd_inb(ahd, SEQCTL0), &cur_col, 50);
ahd_seqintctl_print(ahd_inb(ahd, SEQINTCTL), &cur_col, 50);
ahd_seq_flags_print(ahd_inb(ahd, SEQ_FLAGS), &cur_col, 50);
ahd_seq_flags2_print(ahd_inb(ahd, SEQ_FLAGS2), &cur_col, 50);
ahd_qfreeze_count_print(ahd_inw(ahd, QFREEZE_COUNT), &cur_col, 50);
ahd_kernel_qfreeze_count_print(ahd_inw(ahd, KERNEL_QFREEZE_COUNT),
&cur_col, 50);
ahd_mk_message_scb_print(ahd_inw(ahd, MK_MESSAGE_SCB), &cur_col, 50);
ahd_mk_message_scsiid_print(ahd_inb(ahd, MK_MESSAGE_SCSIID),
&cur_col, 50);
ahd_sstat0_print(ahd_inb(ahd, SSTAT0), &cur_col, 50);
ahd_sstat1_print(ahd_inb(ahd, SSTAT1), &cur_col, 50);
ahd_sstat2_print(ahd_inb(ahd, SSTAT2), &cur_col, 50);
ahd_sstat3_print(ahd_inb(ahd, SSTAT3), &cur_col, 50);
ahd_perrdiag_print(ahd_inb(ahd, PERRDIAG), &cur_col, 50);
ahd_simode1_print(ahd_inb(ahd, SIMODE1), &cur_col, 50);
ahd_lqistat0_print(ahd_inb(ahd, LQISTAT0), &cur_col, 50);
ahd_lqistat1_print(ahd_inb(ahd, LQISTAT1), &cur_col, 50);
ahd_lqistat2_print(ahd_inb(ahd, LQISTAT2), &cur_col, 50);
ahd_lqostat0_print(ahd_inb(ahd, LQOSTAT0), &cur_col, 50);
ahd_lqostat1_print(ahd_inb(ahd, LQOSTAT1), &cur_col, 50);
ahd_lqostat2_print(ahd_inb(ahd, LQOSTAT2), &cur_col, 50);
printk("\n");
printk("\nSCB Count = %d CMDS_PENDING = %d LASTSCB 0x%x "
"CURRSCB 0x%x NEXTSCB 0x%x\n",
ahd->scb_data.numscbs, ahd_inw(ahd, CMDS_PENDING),
ahd_inw(ahd, LASTSCB), ahd_inw(ahd, CURRSCB),
ahd_inw(ahd, NEXTSCB));
cur_col = 0;
/* QINFIFO */
ahd_search_qinfifo(ahd, CAM_TARGET_WILDCARD, ALL_CHANNELS,
CAM_LUN_WILDCARD, SCB_LIST_NULL,
ROLE_UNKNOWN, /*status*/0, SEARCH_PRINT);
saved_scb_index = ahd_get_scbptr(ahd);
printk("Pending list:");
i = 0;
LIST_FOREACH(scb, &ahd->pending_scbs, pending_links) {
if (i++ > AHD_SCB_MAX)
break;
cur_col = printk("\n%3d FIFO_USE[0x%x] ", SCB_GET_TAG(scb),
ahd_inb_scbram(ahd, SCB_FIFO_USE_COUNT));
ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
ahd_scb_control_print(ahd_inb_scbram(ahd, SCB_CONTROL),
&cur_col, 60);
ahd_scb_scsiid_print(ahd_inb_scbram(ahd, SCB_SCSIID),
&cur_col, 60);
}
printk("\nTotal %d\n", i);
printk("Kernel Free SCB list: ");
i = 0;
TAILQ_FOREACH(scb, &ahd->scb_data.free_scbs, links.tqe) {
struct scb *list_scb;
list_scb = scb;
do {
printk("%d ", SCB_GET_TAG(list_scb));
list_scb = LIST_NEXT(list_scb, collision_links);
} while (list_scb && i++ < AHD_SCB_MAX);
}
LIST_FOREACH(scb, &ahd->scb_data.any_dev_free_scb_list, links.le) {
if (i++ > AHD_SCB_MAX)
break;
printk("%d ", SCB_GET_TAG(scb));
}
printk("\n");
printk("Sequencer Complete DMA-inprog list: ");
scb_index = ahd_inw(ahd, COMPLETE_SCB_DMAINPROG_HEAD);
i = 0;
while (!SCBID_IS_NULL(scb_index) && i++ < AHD_SCB_MAX) {
ahd_set_scbptr(ahd, scb_index);
printk("%d ", scb_index);
scb_index = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE);
}
printk("\n");
printk("Sequencer Complete list: ");
scb_index = ahd_inw(ahd, COMPLETE_SCB_HEAD);
i = 0;
while (!SCBID_IS_NULL(scb_index) && i++ < AHD_SCB_MAX) {
ahd_set_scbptr(ahd, scb_index);
printk("%d ", scb_index);
scb_index = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE);
}
printk("\n");
printk("Sequencer DMA-Up and Complete list: ");
scb_index = ahd_inw(ahd, COMPLETE_DMA_SCB_HEAD);
i = 0;
while (!SCBID_IS_NULL(scb_index) && i++ < AHD_SCB_MAX) {
ahd_set_scbptr(ahd, scb_index);
printk("%d ", scb_index);
scb_index = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE);
}
printk("\n");
printk("Sequencer On QFreeze and Complete list: ");
scb_index = ahd_inw(ahd, COMPLETE_ON_QFREEZE_HEAD);
i = 0;
while (!SCBID_IS_NULL(scb_index) && i++ < AHD_SCB_MAX) {
ahd_set_scbptr(ahd, scb_index);
printk("%d ", scb_index);
scb_index = ahd_inw_scbram(ahd, SCB_NEXT_COMPLETE);
}
printk("\n");
ahd_set_scbptr(ahd, saved_scb_index);
dffstat = ahd_inb(ahd, DFFSTAT);
for (i = 0; i < 2; i++) {
#ifdef AHD_DEBUG
struct scb *fifo_scb;
#endif
u_int fifo_scbptr;
ahd_set_modes(ahd, AHD_MODE_DFF0 + i, AHD_MODE_DFF0 + i);
fifo_scbptr = ahd_get_scbptr(ahd);
printk("\n\n%s: FIFO%d %s, LONGJMP == 0x%x, SCB 0x%x\n",
ahd_name(ahd), i,
(dffstat & (FIFO0FREE << i)) ? "Free" : "Active",
ahd_inw(ahd, LONGJMP_ADDR), fifo_scbptr);
cur_col = 0;
ahd_seqimode_print(ahd_inb(ahd, SEQIMODE), &cur_col, 50);
ahd_seqintsrc_print(ahd_inb(ahd, SEQINTSRC), &cur_col, 50);
ahd_dfcntrl_print(ahd_inb(ahd, DFCNTRL), &cur_col, 50);
ahd_dfstatus_print(ahd_inb(ahd, DFSTATUS), &cur_col, 50);
ahd_sg_cache_shadow_print(ahd_inb(ahd, SG_CACHE_SHADOW),
&cur_col, 50);
ahd_sg_state_print(ahd_inb(ahd, SG_STATE), &cur_col, 50);
ahd_dffsxfrctl_print(ahd_inb(ahd, DFFSXFRCTL), &cur_col, 50);
ahd_soffcnt_print(ahd_inb(ahd, SOFFCNT), &cur_col, 50);
ahd_mdffstat_print(ahd_inb(ahd, MDFFSTAT), &cur_col, 50);
if (cur_col > 50) {
printk("\n");
cur_col = 0;
}
cur_col += printk("SHADDR = 0x%x%x, SHCNT = 0x%x ",
ahd_inl(ahd, SHADDR+4),
ahd_inl(ahd, SHADDR),
(ahd_inb(ahd, SHCNT)
| (ahd_inb(ahd, SHCNT + 1) << 8)
| (ahd_inb(ahd, SHCNT + 2) << 16)));
if (cur_col > 50) {
printk("\n");
cur_col = 0;
}
cur_col += printk("HADDR = 0x%x%x, HCNT = 0x%x ",
ahd_inl(ahd, HADDR+4),
ahd_inl(ahd, HADDR),
(ahd_inb(ahd, HCNT)
| (ahd_inb(ahd, HCNT + 1) << 8)
| (ahd_inb(ahd, HCNT + 2) << 16)));
ahd_ccsgctl_print(ahd_inb(ahd, CCSGCTL), &cur_col, 50);
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_SG) != 0) {
fifo_scb = ahd_lookup_scb(ahd, fifo_scbptr);
if (fifo_scb != NULL)
ahd_dump_sglist(fifo_scb);
}
#endif
}
printk("\nLQIN: ");
for (i = 0; i < 20; i++)
printk("0x%x ", ahd_inb(ahd, LQIN + i));
printk("\n");
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
printk("%s: LQISTATE = 0x%x, LQOSTATE = 0x%x, OPTIONMODE = 0x%x\n",
ahd_name(ahd), ahd_inb(ahd, LQISTATE), ahd_inb(ahd, LQOSTATE),
ahd_inb(ahd, OPTIONMODE));
printk("%s: OS_SPACE_CNT = 0x%x MAXCMDCNT = 0x%x\n",
ahd_name(ahd), ahd_inb(ahd, OS_SPACE_CNT),
ahd_inb(ahd, MAXCMDCNT));
printk("%s: SAVED_SCSIID = 0x%x SAVED_LUN = 0x%x\n",
ahd_name(ahd), ahd_inb(ahd, SAVED_SCSIID),
ahd_inb(ahd, SAVED_LUN));
ahd_simode0_print(ahd_inb(ahd, SIMODE0), &cur_col, 50);
printk("\n");
ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN);
cur_col = 0;
ahd_ccscbctl_print(ahd_inb(ahd, CCSCBCTL), &cur_col, 50);
printk("\n");
ahd_set_modes(ahd, ahd->saved_src_mode, ahd->saved_dst_mode);
printk("%s: REG0 == 0x%x, SINDEX = 0x%x, DINDEX = 0x%x\n",
ahd_name(ahd), ahd_inw(ahd, REG0), ahd_inw(ahd, SINDEX),
ahd_inw(ahd, DINDEX));
printk("%s: SCBPTR == 0x%x, SCB_NEXT == 0x%x, SCB_NEXT2 == 0x%x\n",
ahd_name(ahd), ahd_get_scbptr(ahd),
ahd_inw_scbram(ahd, SCB_NEXT),
ahd_inw_scbram(ahd, SCB_NEXT2));
printk("CDB %x %x %x %x %x %x\n",
ahd_inb_scbram(ahd, SCB_CDB_STORE),
ahd_inb_scbram(ahd, SCB_CDB_STORE+1),
ahd_inb_scbram(ahd, SCB_CDB_STORE+2),
ahd_inb_scbram(ahd, SCB_CDB_STORE+3),
ahd_inb_scbram(ahd, SCB_CDB_STORE+4),
ahd_inb_scbram(ahd, SCB_CDB_STORE+5));
printk("STACK:");
for (i = 0; i < ahd->stack_size; i++) {
ahd->saved_stack[i] =
ahd_inb(ahd, STACK)|(ahd_inb(ahd, STACK) << 8);
printk(" 0x%x", ahd->saved_stack[i]);
}
for (i = ahd->stack_size-1; i >= 0; i--) {
ahd_outb(ahd, STACK, ahd->saved_stack[i] & 0xFF);
ahd_outb(ahd, STACK, (ahd->saved_stack[i] >> 8) & 0xFF);
}
printk("\n<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>\n");
ahd_restore_modes(ahd, saved_modes);
if (paused == 0)
ahd_unpause(ahd);
}
#if 0
void
ahd_dump_scbs(struct ahd_softc *ahd)
{
ahd_mode_state saved_modes;
u_int saved_scb_index;
int i;
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
saved_scb_index = ahd_get_scbptr(ahd);
for (i = 0; i < AHD_SCB_MAX; i++) {
ahd_set_scbptr(ahd, i);
printk("%3d", i);
printk("(CTRL 0x%x ID 0x%x N 0x%x N2 0x%x SG 0x%x, RSG 0x%x)\n",
ahd_inb_scbram(ahd, SCB_CONTROL),
ahd_inb_scbram(ahd, SCB_SCSIID),
ahd_inw_scbram(ahd, SCB_NEXT),
ahd_inw_scbram(ahd, SCB_NEXT2),
ahd_inl_scbram(ahd, SCB_SGPTR),
ahd_inl_scbram(ahd, SCB_RESIDUAL_SGPTR));
}
printk("\n");
ahd_set_scbptr(ahd, saved_scb_index);
ahd_restore_modes(ahd, saved_modes);
}
#endif /* 0 */
/**************************** Flexport Logic **********************************/
/*
* Read count 16bit words from 16bit word address start_addr from the
* SEEPROM attached to the controller, into buf, using the controller's
* SEEPROM reading state machine. Optionally treat the data as a byte
* stream in terms of byte order.
*/
int
ahd_read_seeprom(struct ahd_softc *ahd, uint16_t *buf,
u_int start_addr, u_int count, int bytestream)
{
u_int cur_addr;
u_int end_addr;
int error;
/*
* If we never make it through the loop even once,
* we were passed invalid arguments.
*/
error = EINVAL;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
end_addr = start_addr + count;
for (cur_addr = start_addr; cur_addr < end_addr; cur_addr++) {
ahd_outb(ahd, SEEADR, cur_addr);
ahd_outb(ahd, SEECTL, SEEOP_READ | SEESTART);
error = ahd_wait_seeprom(ahd);
if (error)
break;
if (bytestream != 0) {
uint8_t *bytestream_ptr;
bytestream_ptr = (uint8_t *)buf;
*bytestream_ptr++ = ahd_inb(ahd, SEEDAT);
*bytestream_ptr = ahd_inb(ahd, SEEDAT+1);
} else {
/*
* ahd_inw() already handles machine byte order.
*/
*buf = ahd_inw(ahd, SEEDAT);
}
buf++;
}
return (error);
}
/*
* Write count 16bit words from buf, into SEEPROM attache to the
* controller starting at 16bit word address start_addr, using the
* controller's SEEPROM writing state machine.
*/
int
ahd_write_seeprom(struct ahd_softc *ahd, uint16_t *buf,
u_int start_addr, u_int count)
{
u_int cur_addr;
u_int end_addr;
int error;
int retval;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
error = ENOENT;
/* Place the chip into write-enable mode */
ahd_outb(ahd, SEEADR, SEEOP_EWEN_ADDR);
ahd_outb(ahd, SEECTL, SEEOP_EWEN | SEESTART);
error = ahd_wait_seeprom(ahd);
if (error)
return (error);
/*
* Write the data. If we don't get through the loop at
* least once, the arguments were invalid.
*/
retval = EINVAL;
end_addr = start_addr + count;
for (cur_addr = start_addr; cur_addr < end_addr; cur_addr++) {
ahd_outw(ahd, SEEDAT, *buf++);
ahd_outb(ahd, SEEADR, cur_addr);
ahd_outb(ahd, SEECTL, SEEOP_WRITE | SEESTART);
retval = ahd_wait_seeprom(ahd);
if (retval)
break;
}
/*
* Disable writes.
*/
ahd_outb(ahd, SEEADR, SEEOP_EWDS_ADDR);
ahd_outb(ahd, SEECTL, SEEOP_EWDS | SEESTART);
error = ahd_wait_seeprom(ahd);
if (error)
return (error);
return (retval);
}
/*
* Wait ~100us for the serial eeprom to satisfy our request.
*/
static int
ahd_wait_seeprom(struct ahd_softc *ahd)
{
int cnt;
cnt = 5000;
while ((ahd_inb(ahd, SEESTAT) & (SEEARBACK|SEEBUSY)) != 0 && --cnt)
ahd_delay(5);
if (cnt == 0)
return (ETIMEDOUT);
return (0);
}
/*
* Validate the two checksums in the per_channel
* vital product data struct.
*/
static int
ahd_verify_vpd_cksum(struct vpd_config *vpd)
{
int i;
int maxaddr;
uint32_t checksum;
uint8_t *vpdarray;
vpdarray = (uint8_t *)vpd;
maxaddr = offsetof(struct vpd_config, vpd_checksum);
checksum = 0;
for (i = offsetof(struct vpd_config, resource_type); i < maxaddr; i++)
checksum = checksum + vpdarray[i];
if (checksum == 0
|| (-checksum & 0xFF) != vpd->vpd_checksum)
return (0);
checksum = 0;
maxaddr = offsetof(struct vpd_config, checksum);
for (i = offsetof(struct vpd_config, default_target_flags);
i < maxaddr; i++)
checksum = checksum + vpdarray[i];
if (checksum == 0
|| (-checksum & 0xFF) != vpd->checksum)
return (0);
return (1);
}
int
ahd_verify_cksum(struct seeprom_config *sc)
{
int i;
int maxaddr;
uint32_t checksum;
uint16_t *scarray;
maxaddr = (sizeof(*sc)/2) - 1;
checksum = 0;
scarray = (uint16_t *)sc;
for (i = 0; i < maxaddr; i++)
checksum = checksum + scarray[i];
if (checksum == 0
|| (checksum & 0xFFFF) != sc->checksum) {
return (0);
} else {
return (1);
}
}
int
ahd_acquire_seeprom(struct ahd_softc *ahd)
{
/*
* We should be able to determine the SEEPROM type
* from the flexport logic, but unfortunately not
* all implementations have this logic and there is
* no programatic method for determining if the logic
* is present.
*/
return (1);
#if 0
uint8_t seetype;
int error;
error = ahd_read_flexport(ahd, FLXADDR_ROMSTAT_CURSENSECTL, &seetype);
if (error != 0
|| ((seetype & FLX_ROMSTAT_SEECFG) == FLX_ROMSTAT_SEE_NONE))
return (0);
return (1);
#endif
}
void
ahd_release_seeprom(struct ahd_softc *ahd)
{
/* Currently a no-op */
}
/*
* Wait at most 2 seconds for flexport arbitration to succeed.
*/
static int
ahd_wait_flexport(struct ahd_softc *ahd)
{
int cnt;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
cnt = 1000000 * 2 / 5;
while ((ahd_inb(ahd, BRDCTL) & FLXARBACK) == 0 && --cnt)
ahd_delay(5);
if (cnt == 0)
return (ETIMEDOUT);
return (0);
}
int
ahd_write_flexport(struct ahd_softc *ahd, u_int addr, u_int value)
{
int error;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
if (addr > 7)
panic("ahd_write_flexport: address out of range");
ahd_outb(ahd, BRDCTL, BRDEN|(addr << 3));
error = ahd_wait_flexport(ahd);
if (error != 0)
return (error);
ahd_outb(ahd, BRDDAT, value);
ahd_flush_device_writes(ahd);
ahd_outb(ahd, BRDCTL, BRDSTB|BRDEN|(addr << 3));
ahd_flush_device_writes(ahd);
ahd_outb(ahd, BRDCTL, BRDEN|(addr << 3));
ahd_flush_device_writes(ahd);
ahd_outb(ahd, BRDCTL, 0);
ahd_flush_device_writes(ahd);
return (0);
}
int
ahd_read_flexport(struct ahd_softc *ahd, u_int addr, uint8_t *value)
{
int error;
AHD_ASSERT_MODES(ahd, AHD_MODE_SCSI_MSK, AHD_MODE_SCSI_MSK);
if (addr > 7)
panic("ahd_read_flexport: address out of range");
ahd_outb(ahd, BRDCTL, BRDRW|BRDEN|(addr << 3));
error = ahd_wait_flexport(ahd);
if (error != 0)
return (error);
*value = ahd_inb(ahd, BRDDAT);
ahd_outb(ahd, BRDCTL, 0);
ahd_flush_device_writes(ahd);
return (0);
}
/************************* Target Mode ****************************************/
#ifdef AHD_TARGET_MODE
cam_status
ahd_find_tmode_devs(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb,
struct ahd_tmode_tstate **tstate,
struct ahd_tmode_lstate **lstate,
int notfound_failure)
{
if ((ahd->features & AHD_TARGETMODE) == 0)
return (CAM_REQ_INVALID);
/*
* Handle the 'black hole' device that sucks up
* requests to unattached luns on enabled targets.
*/
if (ccb->ccb_h.target_id == CAM_TARGET_WILDCARD
&& ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
*tstate = NULL;
*lstate = ahd->black_hole;
} else {
u_int max_id;
max_id = (ahd->features & AHD_WIDE) ? 16 : 8;
if (ccb->ccb_h.target_id >= max_id)
return (CAM_TID_INVALID);
if (ccb->ccb_h.target_lun >= AHD_NUM_LUNS)
return (CAM_LUN_INVALID);
*tstate = ahd->enabled_targets[ccb->ccb_h.target_id];
*lstate = NULL;
if (*tstate != NULL)
*lstate =
(*tstate)->enabled_luns[ccb->ccb_h.target_lun];
}
if (notfound_failure != 0 && *lstate == NULL)
return (CAM_PATH_INVALID);
return (CAM_REQ_CMP);
}
void
ahd_handle_en_lun(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb)
{
#if NOT_YET
struct ahd_tmode_tstate *tstate;
struct ahd_tmode_lstate *lstate;
struct ccb_en_lun *cel;
cam_status status;
u_int target;
u_int lun;
u_int target_mask;
u_long s;
char channel;
status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, &lstate,
/*notfound_failure*/FALSE);
if (status != CAM_REQ_CMP) {
ccb->ccb_h.status = status;
return;
}
if ((ahd->features & AHD_MULTIROLE) != 0) {
u_int our_id;
our_id = ahd->our_id;
if (ccb->ccb_h.target_id != our_id) {
if ((ahd->features & AHD_MULTI_TID) != 0
&& (ahd->flags & AHD_INITIATORROLE) != 0) {
/*
* Only allow additional targets if
* the initiator role is disabled.
* The hardware cannot handle a re-select-in
* on the initiator id during a re-select-out
* on a different target id.
*/
status = CAM_TID_INVALID;
} else if ((ahd->flags & AHD_INITIATORROLE) != 0
|| ahd->enabled_luns > 0) {
/*
* Only allow our target id to change
* if the initiator role is not configured
* and there are no enabled luns which
* are attached to the currently registered
* scsi id.
*/
status = CAM_TID_INVALID;
}
}
}
if (status != CAM_REQ_CMP) {
ccb->ccb_h.status = status;
return;
}
/*
* We now have an id that is valid.
* If we aren't in target mode, switch modes.
*/
if ((ahd->flags & AHD_TARGETROLE) == 0
&& ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
u_long s;
printk("Configuring Target Mode\n");
ahd_lock(ahd, &s);
if (LIST_FIRST(&ahd->pending_scbs) != NULL) {
ccb->ccb_h.status = CAM_BUSY;
ahd_unlock(ahd, &s);
return;
}
ahd->flags |= AHD_TARGETROLE;
if ((ahd->features & AHD_MULTIROLE) == 0)
ahd->flags &= ~AHD_INITIATORROLE;
ahd_pause(ahd);
ahd_loadseq(ahd);
ahd_restart(ahd);
ahd_unlock(ahd, &s);
}
cel = &ccb->cel;
target = ccb->ccb_h.target_id;
lun = ccb->ccb_h.target_lun;
channel = SIM_CHANNEL(ahd, sim);
target_mask = 0x01 << target;
if (channel == 'B')
target_mask <<= 8;
if (cel->enable != 0) {
u_int scsiseq1;
/* Are we already enabled?? */
if (lstate != NULL) {
xpt_print_path(ccb->ccb_h.path);
printk("Lun already enabled\n");
ccb->ccb_h.status = CAM_LUN_ALRDY_ENA;
return;
}
if (cel->grp6_len != 0
|| cel->grp7_len != 0) {
/*
* Don't (yet?) support vendor
* specific commands.
*/
ccb->ccb_h.status = CAM_REQ_INVALID;
printk("Non-zero Group Codes\n");
return;
}
/*
* Seems to be okay.
* Setup our data structures.
*/
if (target != CAM_TARGET_WILDCARD && tstate == NULL) {
tstate = ahd_alloc_tstate(ahd, target, channel);
if (tstate == NULL) {
xpt_print_path(ccb->ccb_h.path);
printk("Couldn't allocate tstate\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
}
lstate = kzalloc(sizeof(*lstate), GFP_ATOMIC);
if (lstate == NULL) {
xpt_print_path(ccb->ccb_h.path);
printk("Couldn't allocate lstate\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
status = xpt_create_path(&lstate->path, /*periph*/NULL,
xpt_path_path_id(ccb->ccb_h.path),
xpt_path_target_id(ccb->ccb_h.path),
xpt_path_lun_id(ccb->ccb_h.path));
if (status != CAM_REQ_CMP) {
kfree(lstate);
xpt_print_path(ccb->ccb_h.path);
printk("Couldn't allocate path\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
SLIST_INIT(&lstate->accept_tios);
SLIST_INIT(&lstate->immed_notifies);
ahd_lock(ahd, &s);
ahd_pause(ahd);
if (target != CAM_TARGET_WILDCARD) {
tstate->enabled_luns[lun] = lstate;
ahd->enabled_luns++;
if ((ahd->features & AHD_MULTI_TID) != 0) {
u_int targid_mask;
targid_mask = ahd_inw(ahd, TARGID);
targid_mask |= target_mask;
ahd_outw(ahd, TARGID, targid_mask);
ahd_update_scsiid(ahd, targid_mask);
} else {
u_int our_id;
char channel;
channel = SIM_CHANNEL(ahd, sim);
our_id = SIM_SCSI_ID(ahd, sim);
/*
* This can only happen if selections
* are not enabled
*/
if (target != our_id) {
u_int sblkctl;
char cur_channel;
int swap;
sblkctl = ahd_inb(ahd, SBLKCTL);
cur_channel = (sblkctl & SELBUSB)
? 'B' : 'A';
if ((ahd->features & AHD_TWIN) == 0)
cur_channel = 'A';
swap = cur_channel != channel;
ahd->our_id = target;
if (swap)
ahd_outb(ahd, SBLKCTL,
sblkctl ^ SELBUSB);
ahd_outb(ahd, SCSIID, target);
if (swap)
ahd_outb(ahd, SBLKCTL, sblkctl);
}
}
} else
ahd->black_hole = lstate;
/* Allow select-in operations */
if (ahd->black_hole != NULL && ahd->enabled_luns > 0) {
scsiseq1 = ahd_inb(ahd, SCSISEQ_TEMPLATE);
scsiseq1 |= ENSELI;
ahd_outb(ahd, SCSISEQ_TEMPLATE, scsiseq1);
scsiseq1 = ahd_inb(ahd, SCSISEQ1);
scsiseq1 |= ENSELI;
ahd_outb(ahd, SCSISEQ1, scsiseq1);
}
ahd_unpause(ahd);
ahd_unlock(ahd, &s);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_print_path(ccb->ccb_h.path);
printk("Lun now enabled for target mode\n");
} else {
struct scb *scb;
int i, empty;
if (lstate == NULL) {
ccb->ccb_h.status = CAM_LUN_INVALID;
return;
}
ahd_lock(ahd, &s);
ccb->ccb_h.status = CAM_REQ_CMP;
LIST_FOREACH(scb, &ahd->pending_scbs, pending_links) {
struct ccb_hdr *ccbh;
ccbh = &scb->io_ctx->ccb_h;
if (ccbh->func_code == XPT_CONT_TARGET_IO
&& !xpt_path_comp(ccbh->path, ccb->ccb_h.path)){
printk("CTIO pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
ahd_unlock(ahd, &s);
return;
}
}
if (SLIST_FIRST(&lstate->accept_tios) != NULL) {
printk("ATIOs pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
}
if (SLIST_FIRST(&lstate->immed_notifies) != NULL) {
printk("INOTs pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
}
if (ccb->ccb_h.status != CAM_REQ_CMP) {
ahd_unlock(ahd, &s);
return;
}
xpt_print_path(ccb->ccb_h.path);
printk("Target mode disabled\n");
xpt_free_path(lstate->path);
kfree(lstate);
ahd_pause(ahd);
/* Can we clean up the target too? */
if (target != CAM_TARGET_WILDCARD) {
tstate->enabled_luns[lun] = NULL;
ahd->enabled_luns--;
for (empty = 1, i = 0; i < 8; i++)
if (tstate->enabled_luns[i] != NULL) {
empty = 0;
break;
}
if (empty) {
ahd_free_tstate(ahd, target, channel,
/*force*/FALSE);
if (ahd->features & AHD_MULTI_TID) {
u_int targid_mask;
targid_mask = ahd_inw(ahd, TARGID);
targid_mask &= ~target_mask;
ahd_outw(ahd, TARGID, targid_mask);
ahd_update_scsiid(ahd, targid_mask);
}
}
} else {
ahd->black_hole = NULL;
/*
* We can't allow selections without
* our black hole device.
*/
empty = TRUE;
}
if (ahd->enabled_luns == 0) {
/* Disallow select-in */
u_int scsiseq1;
scsiseq1 = ahd_inb(ahd, SCSISEQ_TEMPLATE);
scsiseq1 &= ~ENSELI;
ahd_outb(ahd, SCSISEQ_TEMPLATE, scsiseq1);
scsiseq1 = ahd_inb(ahd, SCSISEQ1);
scsiseq1 &= ~ENSELI;
ahd_outb(ahd, SCSISEQ1, scsiseq1);
if ((ahd->features & AHD_MULTIROLE) == 0) {
printk("Configuring Initiator Mode\n");
ahd->flags &= ~AHD_TARGETROLE;
ahd->flags |= AHD_INITIATORROLE;
ahd_pause(ahd);
ahd_loadseq(ahd);
ahd_restart(ahd);
/*
* Unpaused. The extra unpause
* that follows is harmless.
*/
}
}
ahd_unpause(ahd);
ahd_unlock(ahd, &s);
}
#endif
}
static void
ahd_update_scsiid(struct ahd_softc *ahd, u_int targid_mask)
{
#if NOT_YET
u_int scsiid_mask;
u_int scsiid;
if ((ahd->features & AHD_MULTI_TID) == 0)
panic("ahd_update_scsiid called on non-multitid unit\n");
/*
* Since we will rely on the TARGID mask
* for selection enables, ensure that OID
* in SCSIID is not set to some other ID
* that we don't want to allow selections on.
*/
if ((ahd->features & AHD_ULTRA2) != 0)
scsiid = ahd_inb(ahd, SCSIID_ULTRA2);
else
scsiid = ahd_inb(ahd, SCSIID);
scsiid_mask = 0x1 << (scsiid & OID);
if ((targid_mask & scsiid_mask) == 0) {
u_int our_id;
/* ffs counts from 1 */
our_id = ffs(targid_mask);
if (our_id == 0)
our_id = ahd->our_id;
else
our_id--;
scsiid &= TID;
scsiid |= our_id;
}
if ((ahd->features & AHD_ULTRA2) != 0)
ahd_outb(ahd, SCSIID_ULTRA2, scsiid);
else
ahd_outb(ahd, SCSIID, scsiid);
#endif
}
static void
ahd_run_tqinfifo(struct ahd_softc *ahd, int paused)
{
struct target_cmd *cmd;
ahd_sync_tqinfifo(ahd, BUS_DMASYNC_POSTREAD);
while ((cmd = &ahd->targetcmds[ahd->tqinfifonext])->cmd_valid != 0) {
/*
* Only advance through the queue if we
* have the resources to process the command.
*/
if (ahd_handle_target_cmd(ahd, cmd) != 0)
break;
cmd->cmd_valid = 0;
ahd_dmamap_sync(ahd, ahd->shared_data_dmat,
ahd->shared_data_map.dmamap,
ahd_targetcmd_offset(ahd, ahd->tqinfifonext),
sizeof(struct target_cmd),
BUS_DMASYNC_PREREAD);
ahd->tqinfifonext++;
/*
* Lazily update our position in the target mode incoming
* command queue as seen by the sequencer.
*/
if ((ahd->tqinfifonext & (HOST_TQINPOS - 1)) == 1) {
u_int hs_mailbox;
hs_mailbox = ahd_inb(ahd, HS_MAILBOX);
hs_mailbox &= ~HOST_TQINPOS;
hs_mailbox |= ahd->tqinfifonext & HOST_TQINPOS;
ahd_outb(ahd, HS_MAILBOX, hs_mailbox);
}
}
}
static int
ahd_handle_target_cmd(struct ahd_softc *ahd, struct target_cmd *cmd)
{
struct ahd_tmode_tstate *tstate;
struct ahd_tmode_lstate *lstate;
struct ccb_accept_tio *atio;
uint8_t *byte;
int initiator;
int target;
int lun;
initiator = SCSIID_TARGET(ahd, cmd->scsiid);
target = SCSIID_OUR_ID(cmd->scsiid);
lun = (cmd->identify & MSG_IDENTIFY_LUNMASK);
byte = cmd->bytes;
tstate = ahd->enabled_targets[target];
lstate = NULL;
if (tstate != NULL)
lstate = tstate->enabled_luns[lun];
/*
* Commands for disabled luns go to the black hole driver.
*/
if (lstate == NULL)
lstate = ahd->black_hole;
atio = (struct ccb_accept_tio*)SLIST_FIRST(&lstate->accept_tios);
if (atio == NULL) {
ahd->flags |= AHD_TQINFIFO_BLOCKED;
/*
* Wait for more ATIOs from the peripheral driver for this lun.
*/
return (1);
} else
ahd->flags &= ~AHD_TQINFIFO_BLOCKED;
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_TQIN) != 0)
printk("Incoming command from %d for %d:%d%s\n",
initiator, target, lun,
lstate == ahd->black_hole ? "(Black Holed)" : "");
#endif
SLIST_REMOVE_HEAD(&lstate->accept_tios, sim_links.sle);
if (lstate == ahd->black_hole) {
/* Fill in the wildcards */
atio->ccb_h.target_id = target;
atio->ccb_h.target_lun = lun;
}
/*
* Package it up and send it off to
* whomever has this lun enabled.
*/
atio->sense_len = 0;
atio->init_id = initiator;
if (byte[0] != 0xFF) {
/* Tag was included */
atio->tag_action = *byte++;
atio->tag_id = *byte++;
atio->ccb_h.flags = CAM_TAG_ACTION_VALID;
} else {
atio->ccb_h.flags = 0;
}
byte++;
/* Okay. Now determine the cdb size based on the command code */
switch (*byte >> CMD_GROUP_CODE_SHIFT) {
case 0:
atio->cdb_len = 6;
break;
case 1:
case 2:
atio->cdb_len = 10;
break;
case 4:
atio->cdb_len = 16;
break;
case 5:
atio->cdb_len = 12;
break;
case 3:
default:
/* Only copy the opcode. */
atio->cdb_len = 1;
printk("Reserved or VU command code type encountered\n");
break;
}
memcpy(atio->cdb_io.cdb_bytes, byte, atio->cdb_len);
atio->ccb_h.status |= CAM_CDB_RECVD;
if ((cmd->identify & MSG_IDENTIFY_DISCFLAG) == 0) {
/*
* We weren't allowed to disconnect.
* We're hanging on the bus until a
* continue target I/O comes in response
* to this accept tio.
*/
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_TQIN) != 0)
printk("Received Immediate Command %d:%d:%d - %p\n",
initiator, target, lun, ahd->pending_device);
#endif
ahd->pending_device = lstate;
ahd_freeze_ccb((union ccb *)atio);
atio->ccb_h.flags |= CAM_DIS_DISCONNECT;
}
xpt_done((union ccb*)atio);
return (0);
}
#endif
|
linux-master
|
drivers/scsi/aic7xxx/aic79xx_core.c
|
/*
* Product specific probe and attach routines for:
* aic7901 and aic7902 SCSI controllers
*
* Copyright (c) 1994-2001 Justin T. Gibbs.
* Copyright (c) 2000-2002 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aic79xx_pci.c#92 $
*/
#include "aic79xx_osm.h"
#include "aic79xx_inline.h"
#include "aic79xx_pci.h"
static inline uint64_t
ahd_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
{
uint64_t id;
id = subvendor
| (subdevice << 16)
| ((uint64_t)vendor << 32)
| ((uint64_t)device << 48);
return (id);
}
#define ID_AIC7902_PCI_REV_A4 0x3
#define ID_AIC7902_PCI_REV_B0 0x10
#define SUBID_HP 0x0E11
#define DEVID_9005_HOSTRAID(id) ((id) & 0x80)
#define DEVID_9005_TYPE(id) ((id) & 0xF)
#define DEVID_9005_TYPE_HBA 0x0 /* Standard Card */
#define DEVID_9005_TYPE_HBA_2EXT 0x1 /* 2 External Ports */
#define DEVID_9005_TYPE_IROC 0x8 /* Raid(0,1,10) Card */
#define DEVID_9005_TYPE_MB 0xF /* On Motherboard */
#define DEVID_9005_MFUNC(id) ((id) & 0x10)
#define DEVID_9005_PACKETIZED(id) ((id) & 0x8000)
#define SUBID_9005_TYPE(id) ((id) & 0xF)
#define SUBID_9005_TYPE_HBA 0x0 /* Standard Card */
#define SUBID_9005_TYPE_MB 0xF /* On Motherboard */
#define SUBID_9005_AUTOTERM(id) (((id) & 0x10) == 0)
#define SUBID_9005_LEGACYCONN_FUNC(id) ((id) & 0x20)
#define SUBID_9005_SEEPTYPE(id) (((id) & 0x0C0) >> 6)
#define SUBID_9005_SEEPTYPE_NONE 0x0
#define SUBID_9005_SEEPTYPE_4K 0x1
static ahd_device_setup_t ahd_aic7901_setup;
static ahd_device_setup_t ahd_aic7901A_setup;
static ahd_device_setup_t ahd_aic7902_setup;
static ahd_device_setup_t ahd_aic790X_setup;
static const struct ahd_pci_identity ahd_pci_ident_table[] =
{
/* aic7901 based controllers */
{
ID_AHA_29320A,
ID_ALL_MASK,
"Adaptec 29320A Ultra320 SCSI adapter",
ahd_aic7901_setup
},
{
ID_AHA_29320ALP,
ID_ALL_MASK,
"Adaptec 29320ALP PCIx Ultra320 SCSI adapter",
ahd_aic7901_setup
},
{
ID_AHA_29320LPE,
ID_ALL_MASK,
"Adaptec 29320LPE PCIe Ultra320 SCSI adapter",
ahd_aic7901_setup
},
/* aic7901A based controllers */
{
ID_AHA_29320LP,
ID_ALL_MASK,
"Adaptec 29320LP Ultra320 SCSI adapter",
ahd_aic7901A_setup
},
/* aic7902 based controllers */
{
ID_AHA_29320,
ID_ALL_MASK,
"Adaptec 29320 Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_29320B,
ID_ALL_MASK,
"Adaptec 29320B Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_39320,
ID_ALL_MASK,
"Adaptec 39320 Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_39320_B,
ID_ALL_MASK,
"Adaptec 39320 Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_39320_B_DELL,
ID_ALL_MASK,
"Adaptec (Dell OEM) 39320 Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_39320A,
ID_ALL_MASK,
"Adaptec 39320A Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_39320D,
ID_ALL_MASK,
"Adaptec 39320D Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_39320D_HP,
ID_ALL_MASK,
"Adaptec (HP OEM) 39320D Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_39320D_B,
ID_ALL_MASK,
"Adaptec 39320D Ultra320 SCSI adapter",
ahd_aic7902_setup
},
{
ID_AHA_39320D_B_HP,
ID_ALL_MASK,
"Adaptec (HP OEM) 39320D Ultra320 SCSI adapter",
ahd_aic7902_setup
},
/* Generic chip probes for devices we don't know 'exactly' */
{
ID_AIC7901 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec AIC7901 Ultra320 SCSI adapter",
ahd_aic7901_setup
},
{
ID_AIC7901A & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec AIC7901A Ultra320 SCSI adapter",
ahd_aic7901A_setup
},
{
ID_AIC7902 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec AIC7902 Ultra320 SCSI adapter",
ahd_aic7902_setup
}
};
static const u_int ahd_num_pci_devs = ARRAY_SIZE(ahd_pci_ident_table);
#define DEVCONFIG 0x40
#define PCIXINITPAT 0x0000E000ul
#define PCIXINIT_PCI33_66 0x0000E000ul
#define PCIXINIT_PCIX50_66 0x0000C000ul
#define PCIXINIT_PCIX66_100 0x0000A000ul
#define PCIXINIT_PCIX100_133 0x00008000ul
#define PCI_BUS_MODES_INDEX(devconfig) \
(((devconfig) & PCIXINITPAT) >> 13)
static const char *pci_bus_modes[] =
{
"PCI bus mode unknown",
"PCI bus mode unknown",
"PCI bus mode unknown",
"PCI bus mode unknown",
"PCI-X 101-133MHz",
"PCI-X 67-100MHz",
"PCI-X 50-66MHz",
"PCI 33 or 66MHz"
};
#define TESTMODE 0x00000800ul
#define IRDY_RST 0x00000200ul
#define FRAME_RST 0x00000100ul
#define PCI64BIT 0x00000080ul
#define MRDCEN 0x00000040ul
#define ENDIANSEL 0x00000020ul
#define MIXQWENDIANEN 0x00000008ul
#define DACEN 0x00000004ul
#define STPWLEVEL 0x00000002ul
#define QWENDIANSEL 0x00000001ul
#define DEVCONFIG1 0x44
#define PREQDIS 0x01
#define CSIZE_LATTIME 0x0c
#define CACHESIZE 0x000000fful
#define LATTIME 0x0000ff00ul
static int ahd_check_extport(struct ahd_softc *ahd);
static void ahd_configure_termination(struct ahd_softc *ahd,
u_int adapter_control);
static void ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat);
static void ahd_pci_intr(struct ahd_softc *ahd);
const struct ahd_pci_identity *
ahd_find_pci_device(ahd_dev_softc_t pci)
{
uint64_t full_id;
uint16_t device;
uint16_t vendor;
uint16_t subdevice;
uint16_t subvendor;
const struct ahd_pci_identity *entry;
u_int i;
vendor = ahd_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
device = ahd_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
subvendor = ahd_pci_read_config(pci, PCI_SUBSYSTEM_VENDOR_ID, /*bytes*/2);
subdevice = ahd_pci_read_config(pci, PCI_SUBSYSTEM_ID, /*bytes*/2);
full_id = ahd_compose_id(device,
vendor,
subdevice,
subvendor);
/*
* Controllers, mask out the IROC/HostRAID bit
*/
full_id &= ID_ALL_IROC_MASK;
for (i = 0; i < ahd_num_pci_devs; i++) {
entry = &ahd_pci_ident_table[i];
if (entry->full_id == (full_id & entry->id_mask)) {
/* Honor exclusion entries. */
if (entry->name == NULL)
return (NULL);
return (entry);
}
}
return (NULL);
}
int
ahd_pci_config(struct ahd_softc *ahd, const struct ahd_pci_identity *entry)
{
u_int command;
uint32_t devconfig;
uint16_t subvendor;
int error;
ahd->description = entry->name;
/*
* Record if this is an HP board.
*/
subvendor = ahd_pci_read_config(ahd->dev_softc,
PCI_SUBSYSTEM_VENDOR_ID, /*bytes*/2);
if (subvendor == SUBID_HP)
ahd->flags |= AHD_HP_BOARD;
error = entry->setup(ahd);
if (error != 0)
return (error);
devconfig = ahd_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
if ((devconfig & PCIXINITPAT) == PCIXINIT_PCI33_66) {
ahd->chip |= AHD_PCI;
/* Disable PCIX workarounds when running in PCI mode. */
ahd->bugs &= ~AHD_PCIX_BUG_MASK;
} else {
ahd->chip |= AHD_PCIX;
}
ahd->bus_description = pci_bus_modes[PCI_BUS_MODES_INDEX(devconfig)];
ahd_power_state_change(ahd, AHD_POWER_STATE_D0);
error = ahd_pci_map_registers(ahd);
if (error != 0)
return (error);
/*
* If we need to support high memory, enable dual
* address cycles. This bit must be set to enable
* high address bit generation even if we are on a
* 64bit bus (PCI64BIT set in devconfig).
*/
if ((ahd->flags & (AHD_39BIT_ADDRESSING|AHD_64BIT_ADDRESSING)) != 0) {
if (bootverbose)
printk("%s: Enabling 39Bit Addressing\n",
ahd_name(ahd));
devconfig = ahd_pci_read_config(ahd->dev_softc,
DEVCONFIG, /*bytes*/4);
devconfig |= DACEN;
ahd_pci_write_config(ahd->dev_softc, DEVCONFIG,
devconfig, /*bytes*/4);
}
/* Ensure busmastering is enabled */
command = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
command |= PCIM_CMD_BUSMASTEREN;
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
error = ahd_softc_init(ahd);
if (error != 0)
return (error);
ahd->bus_intr = ahd_pci_intr;
error = ahd_reset(ahd, /*reinit*/FALSE);
if (error != 0)
return (ENXIO);
ahd->pci_cachesize =
ahd_pci_read_config(ahd->dev_softc, CSIZE_LATTIME,
/*bytes*/1) & CACHESIZE;
ahd->pci_cachesize *= 4;
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
/* See if we have a SEEPROM and perform auto-term */
error = ahd_check_extport(ahd);
if (error != 0)
return (error);
/* Core initialization */
error = ahd_init(ahd);
if (error != 0)
return (error);
ahd->init_level++;
/*
* Allow interrupts now that we are completely setup.
*/
return ahd_pci_map_int(ahd);
}
void __maybe_unused
ahd_pci_suspend(struct ahd_softc *ahd)
{
/*
* Save chip register configuration data for chip resets
* that occur during runtime and resume events.
*/
ahd->suspend_state.pci_state.devconfig =
ahd_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
ahd->suspend_state.pci_state.command =
ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/1);
ahd->suspend_state.pci_state.csize_lattime =
ahd_pci_read_config(ahd->dev_softc, CSIZE_LATTIME, /*bytes*/1);
}
void __maybe_unused
ahd_pci_resume(struct ahd_softc *ahd)
{
ahd_pci_write_config(ahd->dev_softc, DEVCONFIG,
ahd->suspend_state.pci_state.devconfig, /*bytes*/4);
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
ahd->suspend_state.pci_state.command, /*bytes*/1);
ahd_pci_write_config(ahd->dev_softc, CSIZE_LATTIME,
ahd->suspend_state.pci_state.csize_lattime, /*bytes*/1);
}
/*
* Perform some simple tests that should catch situations where
* our registers are invalidly mapped.
*/
int
ahd_pci_test_register_access(struct ahd_softc *ahd)
{
uint32_t cmd;
u_int targpcistat;
u_int pci_status1;
int error;
uint8_t hcntrl;
error = EIO;
/*
* Enable PCI error interrupt status, but suppress NMIs
* generated by SERR raised due to target aborts.
*/
cmd = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
/*
* First a simple test to see if any
* registers can be read. Reading
* HCNTRL has no side effects and has
* at least one bit that is guaranteed to
* be zero so it is a good register to
* use for this test.
*/
hcntrl = ahd_inb(ahd, HCNTRL);
if (hcntrl == 0xFF)
goto fail;
/*
* Next create a situation where write combining
* or read prefetching could be initiated by the
* CPU or host bridge. Our device does not support
* either, so look for data corruption and/or flaged
* PCI errors. First pause without causing another
* chip reset.
*/
hcntrl &= ~CHIPRST;
ahd_outb(ahd, HCNTRL, hcntrl|PAUSE);
while (ahd_is_paused(ahd) == 0)
;
/* Clear any PCI errors that occurred before our driver attached. */
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
targpcistat = ahd_inb(ahd, TARGPCISTAT);
ahd_outb(ahd, TARGPCISTAT, targpcistat);
pci_status1 = ahd_pci_read_config(ahd->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
pci_status1, /*bytes*/1);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
ahd_outb(ahd, CLRINT, CLRPCIINT);
ahd_outb(ahd, SEQCTL0, PERRORDIS);
ahd_outl(ahd, SRAM_BASE, 0x5aa555aa);
if (ahd_inl(ahd, SRAM_BASE) != 0x5aa555aa)
goto fail;
if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
targpcistat = ahd_inb(ahd, TARGPCISTAT);
if ((targpcistat & STA) != 0)
goto fail;
}
error = 0;
fail:
if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
targpcistat = ahd_inb(ahd, TARGPCISTAT);
/* Silently clear any latched errors. */
ahd_outb(ahd, TARGPCISTAT, targpcistat);
pci_status1 = ahd_pci_read_config(ahd->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
pci_status1, /*bytes*/1);
ahd_outb(ahd, CLRINT, CLRPCIINT);
}
ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS);
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
return (error);
}
/*
* Check the external port logic for a serial eeprom
* and termination/cable detection contrls.
*/
static int
ahd_check_extport(struct ahd_softc *ahd)
{
struct vpd_config vpd;
struct seeprom_config *sc;
u_int adapter_control;
int have_seeprom;
int error;
sc = ahd->seep_config;
have_seeprom = ahd_acquire_seeprom(ahd);
if (have_seeprom) {
u_int start_addr;
/*
* Fetch VPD for this function and parse it.
*/
if (bootverbose)
printk("%s: Reading VPD from SEEPROM...",
ahd_name(ahd));
/* Address is always in units of 16bit words */
start_addr = ((2 * sizeof(*sc))
+ (sizeof(vpd) * (ahd->channel - 'A'))) / 2;
error = ahd_read_seeprom(ahd, (uint16_t *)&vpd,
start_addr, sizeof(vpd)/2,
/*bytestream*/TRUE);
if (error == 0)
error = ahd_parse_vpddata(ahd, &vpd);
if (bootverbose)
printk("%s: VPD parsing %s\n",
ahd_name(ahd),
error == 0 ? "successful" : "failed");
if (bootverbose)
printk("%s: Reading SEEPROM...", ahd_name(ahd));
/* Address is always in units of 16bit words */
start_addr = (sizeof(*sc) / 2) * (ahd->channel - 'A');
error = ahd_read_seeprom(ahd, (uint16_t *)sc,
start_addr, sizeof(*sc)/2,
/*bytestream*/FALSE);
if (error != 0) {
printk("Unable to read SEEPROM\n");
have_seeprom = 0;
} else {
have_seeprom = ahd_verify_cksum(sc);
if (bootverbose) {
if (have_seeprom == 0)
printk ("checksum error\n");
else
printk ("done.\n");
}
}
ahd_release_seeprom(ahd);
}
if (!have_seeprom) {
u_int nvram_scb;
/*
* Pull scratch ram settings and treat them as
* if they are the contents of an seeprom if
* the 'ADPT', 'BIOS', or 'ASPI' signature is found
* in SCB 0xFF. We manually compose the data as 16bit
* values to avoid endian issues.
*/
ahd_set_scbptr(ahd, 0xFF);
nvram_scb = ahd_inb_scbram(ahd, SCB_BASE + NVRAM_SCB_OFFSET);
if (nvram_scb != 0xFF
&& ((ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A'
&& ahd_inb_scbram(ahd, SCB_BASE + 1) == 'D'
&& ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P'
&& ahd_inb_scbram(ahd, SCB_BASE + 3) == 'T')
|| (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'B'
&& ahd_inb_scbram(ahd, SCB_BASE + 1) == 'I'
&& ahd_inb_scbram(ahd, SCB_BASE + 2) == 'O'
&& ahd_inb_scbram(ahd, SCB_BASE + 3) == 'S')
|| (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A'
&& ahd_inb_scbram(ahd, SCB_BASE + 1) == 'S'
&& ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P'
&& ahd_inb_scbram(ahd, SCB_BASE + 3) == 'I'))) {
uint16_t *sc_data;
int i;
ahd_set_scbptr(ahd, nvram_scb);
sc_data = (uint16_t *)sc;
for (i = 0; i < 64; i += 2)
*sc_data++ = ahd_inw_scbram(ahd, SCB_BASE+i);
have_seeprom = ahd_verify_cksum(sc);
if (have_seeprom)
ahd->flags |= AHD_SCB_CONFIG_USED;
}
}
#ifdef AHD_DEBUG
if (have_seeprom != 0
&& (ahd_debug & AHD_DUMP_SEEPROM) != 0) {
uint16_t *sc_data;
int i;
printk("%s: Seeprom Contents:", ahd_name(ahd));
sc_data = (uint16_t *)sc;
for (i = 0; i < (sizeof(*sc)); i += 2)
printk("\n\t0x%.4x", sc_data[i]);
printk("\n");
}
#endif
if (!have_seeprom) {
if (bootverbose)
printk("%s: No SEEPROM available.\n", ahd_name(ahd));
ahd->flags |= AHD_USEDEFAULTS;
error = ahd_default_config(ahd);
adapter_control = CFAUTOTERM|CFSEAUTOTERM;
kfree(ahd->seep_config);
ahd->seep_config = NULL;
} else {
error = ahd_parse_cfgdata(ahd, sc);
adapter_control = sc->adapter_control;
}
if (error != 0)
return (error);
ahd_configure_termination(ahd, adapter_control);
return (0);
}
static void
ahd_configure_termination(struct ahd_softc *ahd, u_int adapter_control)
{
int error;
u_int sxfrctl1;
uint8_t termctl;
uint32_t devconfig;
devconfig = ahd_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
devconfig &= ~STPWLEVEL;
if ((ahd->flags & AHD_STPWLEVEL_A) != 0)
devconfig |= STPWLEVEL;
if (bootverbose)
printk("%s: STPWLEVEL is %s\n",
ahd_name(ahd), (devconfig & STPWLEVEL) ? "on" : "off");
ahd_pci_write_config(ahd->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
/* Make sure current sensing is off. */
if ((ahd->flags & AHD_CURRENT_SENSING) != 0) {
(void)ahd_write_flexport(ahd, FLXADDR_ROMSTAT_CURSENSECTL, 0);
}
/*
* Read to sense. Write to set.
*/
error = ahd_read_flexport(ahd, FLXADDR_TERMCTL, &termctl);
if ((adapter_control & CFAUTOTERM) == 0) {
if (bootverbose)
printk("%s: Manual Primary Termination\n",
ahd_name(ahd));
termctl &= ~(FLX_TERMCTL_ENPRILOW|FLX_TERMCTL_ENPRIHIGH);
if ((adapter_control & CFSTERM) != 0)
termctl |= FLX_TERMCTL_ENPRILOW;
if ((adapter_control & CFWSTERM) != 0)
termctl |= FLX_TERMCTL_ENPRIHIGH;
} else if (error != 0) {
printk("%s: Primary Auto-Term Sensing failed! "
"Using Defaults.\n", ahd_name(ahd));
termctl = FLX_TERMCTL_ENPRILOW|FLX_TERMCTL_ENPRIHIGH;
}
if ((adapter_control & CFSEAUTOTERM) == 0) {
if (bootverbose)
printk("%s: Manual Secondary Termination\n",
ahd_name(ahd));
termctl &= ~(FLX_TERMCTL_ENSECLOW|FLX_TERMCTL_ENSECHIGH);
if ((adapter_control & CFSELOWTERM) != 0)
termctl |= FLX_TERMCTL_ENSECLOW;
if ((adapter_control & CFSEHIGHTERM) != 0)
termctl |= FLX_TERMCTL_ENSECHIGH;
} else if (error != 0) {
printk("%s: Secondary Auto-Term Sensing failed! "
"Using Defaults.\n", ahd_name(ahd));
termctl |= FLX_TERMCTL_ENSECLOW|FLX_TERMCTL_ENSECHIGH;
}
/*
* Now set the termination based on what we found.
*/
sxfrctl1 = ahd_inb(ahd, SXFRCTL1) & ~STPWEN;
ahd->flags &= ~AHD_TERM_ENB_A;
if ((termctl & FLX_TERMCTL_ENPRILOW) != 0) {
ahd->flags |= AHD_TERM_ENB_A;
sxfrctl1 |= STPWEN;
}
/* Must set the latch once in order to be effective. */
ahd_outb(ahd, SXFRCTL1, sxfrctl1|STPWEN);
ahd_outb(ahd, SXFRCTL1, sxfrctl1);
error = ahd_write_flexport(ahd, FLXADDR_TERMCTL, termctl);
if (error != 0) {
printk("%s: Unable to set termination settings!\n",
ahd_name(ahd));
} else if (bootverbose) {
printk("%s: Primary High byte termination %sabled\n",
ahd_name(ahd),
(termctl & FLX_TERMCTL_ENPRIHIGH) ? "En" : "Dis");
printk("%s: Primary Low byte termination %sabled\n",
ahd_name(ahd),
(termctl & FLX_TERMCTL_ENPRILOW) ? "En" : "Dis");
printk("%s: Secondary High byte termination %sabled\n",
ahd_name(ahd),
(termctl & FLX_TERMCTL_ENSECHIGH) ? "En" : "Dis");
printk("%s: Secondary Low byte termination %sabled\n",
ahd_name(ahd),
(termctl & FLX_TERMCTL_ENSECLOW) ? "En" : "Dis");
}
return;
}
#define DPE 0x80
#define SSE 0x40
#define RMA 0x20
#define RTA 0x10
#define STA 0x08
#define DPR 0x01
static const char *split_status_source[] =
{
"DFF0",
"DFF1",
"OVLY",
"CMC",
};
static const char *pci_status_source[] =
{
"DFF0",
"DFF1",
"SG",
"CMC",
"OVLY",
"NONE",
"MSI",
"TARG"
};
static const char *split_status_strings[] =
{
"%s: Received split response in %s.\n",
"%s: Received split completion error message in %s\n",
"%s: Receive overrun in %s\n",
"%s: Count not complete in %s\n",
"%s: Split completion data bucket in %s\n",
"%s: Split completion address error in %s\n",
"%s: Split completion byte count error in %s\n",
"%s: Signaled Target-abort to early terminate a split in %s\n"
};
static const char *pci_status_strings[] =
{
"%s: Data Parity Error has been reported via PERR# in %s\n",
"%s: Target initial wait state error in %s\n",
"%s: Split completion read data parity error in %s\n",
"%s: Split completion address attribute parity error in %s\n",
"%s: Received a Target Abort in %s\n",
"%s: Received a Master Abort in %s\n",
"%s: Signal System Error Detected in %s\n",
"%s: Address or Write Phase Parity Error Detected in %s.\n"
};
static void
ahd_pci_intr(struct ahd_softc *ahd)
{
uint8_t pci_status[8];
ahd_mode_state saved_modes;
u_int pci_status1;
u_int intstat;
u_int i;
u_int reg;
intstat = ahd_inb(ahd, INTSTAT);
if ((intstat & SPLTINT) != 0)
ahd_pci_split_intr(ahd, intstat);
if ((intstat & PCIINT) == 0)
return;
printk("%s: PCI error Interrupt\n", ahd_name(ahd));
saved_modes = ahd_save_modes(ahd);
ahd_dump_card_state(ahd);
ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
for (i = 0, reg = DF0PCISTAT; i < 8; i++, reg++) {
if (i == 5)
continue;
pci_status[i] = ahd_inb(ahd, reg);
/* Clear latched errors. So our interrupt deasserts. */
ahd_outb(ahd, reg, pci_status[i]);
}
for (i = 0; i < 8; i++) {
u_int bit;
if (i == 5)
continue;
for (bit = 0; bit < 8; bit++) {
if ((pci_status[i] & (0x1 << bit)) != 0) {
const char *s;
s = pci_status_strings[bit];
if (i == 7/*TARG*/ && bit == 3)
s = "%s: Signaled Target Abort\n";
printk(s, ahd_name(ahd), pci_status_source[i]);
}
}
}
pci_status1 = ahd_pci_read_config(ahd->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
pci_status1, /*bytes*/1);
ahd_restore_modes(ahd, saved_modes);
ahd_outb(ahd, CLRINT, CLRPCIINT);
ahd_unpause(ahd);
}
static void
ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat)
{
uint8_t split_status[4];
uint8_t split_status1[4];
uint8_t sg_split_status[2];
uint8_t sg_split_status1[2];
ahd_mode_state saved_modes;
u_int i;
uint16_t pcix_status;
/*
* Check for splits in all modes. Modes 0 and 1
* additionally have SG engine splits to look at.
*/
pcix_status = ahd_pci_read_config(ahd->dev_softc, PCIXR_STATUS,
/*bytes*/2);
printk("%s: PCI Split Interrupt - PCI-X status = 0x%x\n",
ahd_name(ahd), pcix_status);
saved_modes = ahd_save_modes(ahd);
for (i = 0; i < 4; i++) {
ahd_set_modes(ahd, i, i);
split_status[i] = ahd_inb(ahd, DCHSPLTSTAT0);
split_status1[i] = ahd_inb(ahd, DCHSPLTSTAT1);
/* Clear latched errors. So our interrupt deasserts. */
ahd_outb(ahd, DCHSPLTSTAT0, split_status[i]);
ahd_outb(ahd, DCHSPLTSTAT1, split_status1[i]);
if (i > 1)
continue;
sg_split_status[i] = ahd_inb(ahd, SGSPLTSTAT0);
sg_split_status1[i] = ahd_inb(ahd, SGSPLTSTAT1);
/* Clear latched errors. So our interrupt deasserts. */
ahd_outb(ahd, SGSPLTSTAT0, sg_split_status[i]);
ahd_outb(ahd, SGSPLTSTAT1, sg_split_status1[i]);
}
for (i = 0; i < 4; i++) {
u_int bit;
for (bit = 0; bit < 8; bit++) {
if ((split_status[i] & (0x1 << bit)) != 0)
printk(split_status_strings[bit], ahd_name(ahd),
split_status_source[i]);
if (i > 1)
continue;
if ((sg_split_status[i] & (0x1 << bit)) != 0)
printk(split_status_strings[bit], ahd_name(ahd), "SG");
}
}
/*
* Clear PCI-X status bits.
*/
ahd_pci_write_config(ahd->dev_softc, PCIXR_STATUS,
pcix_status, /*bytes*/2);
ahd_outb(ahd, CLRINT, CLRSPLTINT);
ahd_restore_modes(ahd, saved_modes);
}
static int
ahd_aic7901_setup(struct ahd_softc *ahd)
{
ahd->chip = AHD_AIC7901;
ahd->features = AHD_AIC7901_FE;
return (ahd_aic790X_setup(ahd));
}
static int
ahd_aic7901A_setup(struct ahd_softc *ahd)
{
ahd->chip = AHD_AIC7901A;
ahd->features = AHD_AIC7901A_FE;
return (ahd_aic790X_setup(ahd));
}
static int
ahd_aic7902_setup(struct ahd_softc *ahd)
{
ahd->chip = AHD_AIC7902;
ahd->features = AHD_AIC7902_FE;
return (ahd_aic790X_setup(ahd));
}
static int
ahd_aic790X_setup(struct ahd_softc *ahd)
{
ahd_dev_softc_t pci;
u_int rev;
pci = ahd->dev_softc;
rev = ahd_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev < ID_AIC7902_PCI_REV_A4) {
printk("%s: Unable to attach to unsupported chip revision %d\n",
ahd_name(ahd), rev);
ahd_pci_write_config(pci, PCIR_COMMAND, 0, /*bytes*/2);
return (ENXIO);
}
ahd->channel = ahd_get_pci_function(pci) + 'A';
if (rev < ID_AIC7902_PCI_REV_B0) {
/*
* Enable A series workarounds.
*/
ahd->bugs |= AHD_SENT_SCB_UPDATE_BUG|AHD_ABORT_LQI_BUG
| AHD_PKT_BITBUCKET_BUG|AHD_LONG_SETIMO_BUG
| AHD_NLQICRC_DELAYED_BUG|AHD_SCSIRST_BUG
| AHD_LQO_ATNO_BUG|AHD_AUTOFLUSH_BUG
| AHD_CLRLQO_AUTOCLR_BUG|AHD_PCIX_MMAPIO_BUG
| AHD_PCIX_CHIPRST_BUG|AHD_PCIX_SCBRAM_RD_BUG
| AHD_PKTIZED_STATUS_BUG|AHD_PKT_LUN_BUG
| AHD_MDFF_WSCBPTR_BUG|AHD_REG_SLOW_SETTLE_BUG
| AHD_SET_MODE_BUG|AHD_BUSFREEREV_BUG
| AHD_NONPACKFIFO_BUG|AHD_PACED_NEGTABLE_BUG
| AHD_FAINT_LED_BUG;
/*
* IO Cell parameter setup.
*/
AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
if ((ahd->flags & AHD_HP_BOARD) == 0)
AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVA);
} else {
/* This is revision B and newer. */
extern uint32_t aic79xx_slowcrc;
u_int devconfig1;
ahd->features |= AHD_RTI|AHD_NEW_IOCELL_OPTS
| AHD_NEW_DFCNTRL_OPTS|AHD_FAST_CDB_DELIVERY
| AHD_BUSFREEREV_BUG;
ahd->bugs |= AHD_LQOOVERRUN_BUG|AHD_EARLY_REQ_BUG;
/* If the user requested that the SLOWCRC bit to be set. */
if (aic79xx_slowcrc)
ahd->features |= AHD_AIC79XXB_SLOWCRC;
/*
* Some issues have been resolved in the 7901B.
*/
if ((ahd->features & AHD_MULTI_FUNC) != 0)
ahd->bugs |= AHD_INTCOLLISION_BUG|AHD_ABORT_LQI_BUG;
/*
* IO Cell parameter setup.
*/
AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVB);
AHD_SET_AMPLITUDE(ahd, AHD_AMPLITUDE_DEF);
/*
* Set the PREQDIS bit for H2B which disables some workaround
* that doesn't work on regular PCI busses.
* XXX - Find out exactly what this does from the hardware
* folks!
*/
devconfig1 = ahd_pci_read_config(pci, DEVCONFIG1, /*bytes*/1);
ahd_pci_write_config(pci, DEVCONFIG1,
devconfig1|PREQDIS, /*bytes*/1);
devconfig1 = ahd_pci_read_config(pci, DEVCONFIG1, /*bytes*/1);
}
return (0);
}
|
linux-master
|
drivers/scsi/aic7xxx/aic79xx_pci.c
|
/*
* Copyright (c) 2000-2001 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* String handling code courtesy of Gerard Roudier's <[email protected]>
* sym driver.
*
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_proc.c#19 $
*/
#include "aic79xx_osm.h"
#include "aic79xx_inline.h"
static void ahd_dump_target_state(struct ahd_softc *ahd,
struct seq_file *m,
u_int our_id, char channel,
u_int target_id);
static void ahd_dump_device_state(struct seq_file *m,
struct scsi_device *sdev);
/*
* Table of syncrates that don't follow the "divisible by 4"
* rule. This table will be expanded in future SCSI specs.
*/
static const struct {
u_int period_factor;
u_int period; /* in 100ths of ns */
} scsi_syncrates[] = {
{ 0x08, 625 }, /* FAST-160 */
{ 0x09, 1250 }, /* FAST-80 */
{ 0x0a, 2500 }, /* FAST-40 40MHz */
{ 0x0b, 3030 }, /* FAST-40 33MHz */
{ 0x0c, 5000 } /* FAST-20 */
};
/*
* Return the frequency in kHz corresponding to the given
* sync period factor.
*/
static u_int
ahd_calc_syncsrate(u_int period_factor)
{
int i;
/* See if the period is in the "exception" table */
for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) {
if (period_factor == scsi_syncrates[i].period_factor) {
/* Period in kHz */
return (100000000 / scsi_syncrates[i].period);
}
}
/*
* Wasn't in the table, so use the standard
* 4 times conversion.
*/
return (10000000 / (period_factor * 4 * 10));
}
static void
ahd_format_transinfo(struct seq_file *m, struct ahd_transinfo *tinfo)
{
u_int speed;
u_int freq;
u_int mb;
if (tinfo->period == AHD_PERIOD_UNKNOWN) {
seq_puts(m, "Renegotiation Pending\n");
return;
}
speed = 3300;
freq = 0;
if (tinfo->offset != 0) {
freq = ahd_calc_syncsrate(tinfo->period);
speed = freq;
}
speed *= (0x01 << tinfo->width);
mb = speed / 1000;
if (mb > 0)
seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000);
else
seq_printf(m, "%dKB/s transfers", speed);
if (freq != 0) {
int printed_options;
printed_options = 0;
seq_printf(m, " (%d.%03dMHz", freq / 1000, freq % 1000);
if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) {
seq_puts(m, " RDSTRM");
printed_options++;
}
if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
seq_puts(m, printed_options ? "|DT" : " DT");
printed_options++;
}
if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
seq_puts(m, printed_options ? "|IU" : " IU");
printed_options++;
}
if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) {
seq_puts(m, printed_options ? "|RTI" : " RTI");
printed_options++;
}
if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
seq_puts(m, printed_options ? "|QAS" : " QAS");
printed_options++;
}
}
if (tinfo->width > 0) {
if (freq != 0) {
seq_puts(m, ", ");
} else {
seq_puts(m, " (");
}
seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width));
} else if (freq != 0) {
seq_putc(m, ')');
}
seq_putc(m, '\n');
}
static void
ahd_dump_target_state(struct ahd_softc *ahd, struct seq_file *m,
u_int our_id, char channel, u_int target_id)
{
struct scsi_target *starget;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
int lun;
tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
target_id, &tstate);
seq_printf(m, "Target %d Negotiation Settings\n", target_id);
seq_puts(m, "\tUser: ");
ahd_format_transinfo(m, &tinfo->user);
starget = ahd->platform_data->starget[target_id];
if (starget == NULL)
return;
seq_puts(m, "\tGoal: ");
ahd_format_transinfo(m, &tinfo->goal);
seq_puts(m, "\tCurr: ");
ahd_format_transinfo(m, &tinfo->curr);
for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
struct scsi_device *dev;
dev = scsi_device_lookup_by_target(starget, lun);
if (dev == NULL)
continue;
ahd_dump_device_state(m, dev);
}
}
static void
ahd_dump_device_state(struct seq_file *m, struct scsi_device *sdev)
{
struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n",
sdev->sdev_target->channel + 'A',
sdev->sdev_target->id, (u8)sdev->lun);
seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued);
seq_printf(m, "\t\tCommands Active %d\n", dev->active);
seq_printf(m, "\t\tCommand Openings %d\n", dev->openings);
seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags);
seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
}
int
ahd_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length)
{
struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
ahd_mode_state saved_modes;
int have_seeprom;
u_long s;
int paused;
int written;
/* Default to failure. */
written = -EINVAL;
ahd_lock(ahd, &s);
paused = ahd_is_paused(ahd);
if (!paused)
ahd_pause(ahd);
saved_modes = ahd_save_modes(ahd);
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
if (length != sizeof(struct seeprom_config)) {
printk("ahd_proc_write_seeprom: incorrect buffer size\n");
goto done;
}
have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer);
if (have_seeprom == 0) {
printk("ahd_proc_write_seeprom: cksum verification failed\n");
goto done;
}
have_seeprom = ahd_acquire_seeprom(ahd);
if (!have_seeprom) {
printk("ahd_proc_write_seeprom: No Serial EEPROM\n");
goto done;
} else {
u_int start_addr;
if (ahd->seep_config == NULL) {
ahd->seep_config = kmalloc(sizeof(*ahd->seep_config),
GFP_ATOMIC);
if (ahd->seep_config == NULL) {
printk("aic79xx: Unable to allocate serial "
"eeprom buffer. Write failing\n");
goto done;
}
}
printk("aic79xx: Writing Serial EEPROM\n");
start_addr = 32 * (ahd->channel - 'A');
ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr,
sizeof(struct seeprom_config)/2);
ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config,
start_addr, sizeof(struct seeprom_config)/2,
/*ByteStream*/FALSE);
ahd_release_seeprom(ahd);
written = length;
}
done:
ahd_restore_modes(ahd, saved_modes);
if (!paused)
ahd_unpause(ahd);
ahd_unlock(ahd, &s);
return (written);
}
/*
* Return information to handle /proc support for the driver.
*/
int
ahd_linux_show_info(struct seq_file *m, struct Scsi_Host *shost)
{
struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
char ahd_info[256];
u_int max_targ;
u_int i;
seq_printf(m, "Adaptec AIC79xx driver version: %s\n",
AIC79XX_DRIVER_VERSION);
seq_printf(m, "%s\n", ahd->description);
ahd_controller_info(ahd, ahd_info);
seq_printf(m, "%s\n", ahd_info);
seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n",
ahd->scb_data.numscbs, AHD_NSEG);
max_targ = 16;
if (ahd->seep_config == NULL)
seq_puts(m, "No Serial EEPROM\n");
else {
seq_puts(m, "Serial EEPROM:\n");
for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {
if (((i % 8) == 0) && (i != 0)) {
seq_putc(m, '\n');
}
seq_printf(m, "0x%.4x ",
((uint16_t*)ahd->seep_config)[i]);
}
seq_putc(m, '\n');
}
seq_putc(m, '\n');
if ((ahd->features & AHD_WIDE) == 0)
max_targ = 8;
for (i = 0; i < max_targ; i++) {
ahd_dump_target_state(ahd, m, ahd->our_id, 'A',
/*target_id*/i);
}
return 0;
}
|
linux-master
|
drivers/scsi/aic7xxx/aic79xx_proc.c
|
/*
* Core routines and tables shareable across OS platforms.
*
* Copyright (c) 1994-2002 Justin T. Gibbs.
* Copyright (c) 2000-2002 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aic7xxx.c#155 $
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aicasm/aicasm_insformat.h"
/***************************** Lookup Tables **********************************/
static const char *const ahc_chip_names[] = {
"NONE",
"aic7770",
"aic7850",
"aic7855",
"aic7859",
"aic7860",
"aic7870",
"aic7880",
"aic7895",
"aic7895C",
"aic7890/91",
"aic7896/97",
"aic7892",
"aic7899"
};
/*
* Hardware error codes.
*/
struct ahc_hard_error_entry {
uint8_t errno;
const char *errmesg;
};
static const struct ahc_hard_error_entry ahc_hard_errors[] = {
{ ILLHADDR, "Illegal Host Access" },
{ ILLSADDR, "Illegal Sequencer Address referenced" },
{ ILLOPCODE, "Illegal Opcode in sequencer program" },
{ SQPARERR, "Sequencer Parity Error" },
{ DPARERR, "Data-path Parity Error" },
{ MPARERR, "Scratch or SCB Memory Parity Error" },
{ PCIERRSTAT, "PCI Error detected" },
{ CIOPARERR, "CIOBUS Parity Error" },
};
static const u_int num_errors = ARRAY_SIZE(ahc_hard_errors);
static const struct ahc_phase_table_entry ahc_phase_table[] =
{
{ P_DATAOUT, NOP, "in Data-out phase" },
{ P_DATAIN, INITIATOR_ERROR, "in Data-in phase" },
{ P_DATAOUT_DT, NOP, "in DT Data-out phase" },
{ P_DATAIN_DT, INITIATOR_ERROR, "in DT Data-in phase" },
{ P_COMMAND, NOP, "in Command phase" },
{ P_MESGOUT, NOP, "in Message-out phase" },
{ P_STATUS, INITIATOR_ERROR, "in Status phase" },
{ P_MESGIN, MSG_PARITY_ERROR, "in Message-in phase" },
{ P_BUSFREE, NOP, "while idle" },
{ 0, NOP, "in unknown phase" }
};
/*
* In most cases we only wish to itterate over real phases, so
* exclude the last element from the count.
*/
static const u_int num_phases = ARRAY_SIZE(ahc_phase_table) - 1;
/*
* Valid SCSIRATE values. (p. 3-17)
* Provides a mapping of tranfer periods in ns to the proper value to
* stick in the scsixfer reg.
*/
static const struct ahc_syncrate ahc_syncrates[] =
{
/* ultra2 fast/ultra period rate */
{ 0x42, 0x000, 9, "80.0" },
{ 0x03, 0x000, 10, "40.0" },
{ 0x04, 0x000, 11, "33.0" },
{ 0x05, 0x100, 12, "20.0" },
{ 0x06, 0x110, 15, "16.0" },
{ 0x07, 0x120, 18, "13.4" },
{ 0x08, 0x000, 25, "10.0" },
{ 0x19, 0x010, 31, "8.0" },
{ 0x1a, 0x020, 37, "6.67" },
{ 0x1b, 0x030, 43, "5.7" },
{ 0x1c, 0x040, 50, "5.0" },
{ 0x00, 0x050, 56, "4.4" },
{ 0x00, 0x060, 62, "4.0" },
{ 0x00, 0x070, 68, "3.6" },
{ 0x00, 0x000, 0, NULL }
};
/* Our Sequencer Program */
#include "aic7xxx_seq.h"
/**************************** Function Declarations ***************************/
static void ahc_force_renegotiation(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static struct ahc_tmode_tstate*
ahc_alloc_tstate(struct ahc_softc *ahc,
u_int scsi_id, char channel);
#ifdef AHC_TARGET_MODE
static void ahc_free_tstate(struct ahc_softc *ahc,
u_int scsi_id, char channel, int force);
#endif
static const struct ahc_syncrate*
ahc_devlimited_syncrate(struct ahc_softc *ahc,
struct ahc_initiator_tinfo *,
u_int *period,
u_int *ppr_options,
role_t role);
static void ahc_update_pending_scbs(struct ahc_softc *ahc);
static void ahc_fetch_devinfo(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_scb_devinfo(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct scb *scb);
static void ahc_assert_atn(struct ahc_softc *ahc);
static void ahc_setup_initiator_msgout(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct scb *scb);
static void ahc_build_transfer_msg(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_construct_sdtr(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
u_int period, u_int offset);
static void ahc_construct_wdtr(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
u_int bus_width);
static void ahc_construct_ppr(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
u_int period, u_int offset,
u_int bus_width, u_int ppr_options);
static void ahc_clear_msg_state(struct ahc_softc *ahc);
static void ahc_handle_proto_violation(struct ahc_softc *ahc);
static void ahc_handle_message_phase(struct ahc_softc *ahc);
typedef enum {
AHCMSG_1B,
AHCMSG_2B,
AHCMSG_EXT
} ahc_msgtype;
static int ahc_sent_msg(struct ahc_softc *ahc, ahc_msgtype type,
u_int msgval, int full);
static int ahc_parse_msg(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static int ahc_handle_msg_reject(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_handle_ign_wide_residue(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_reinitialize_dataptrs(struct ahc_softc *ahc);
static void ahc_handle_devreset(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
cam_status status, char *message,
int verbose_level);
#ifdef AHC_TARGET_MODE
static void ahc_setup_target_msgin(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct scb *scb);
#endif
static bus_dmamap_callback_t ahc_dmamap_cb;
static void ahc_build_free_scb_list(struct ahc_softc *ahc);
static int ahc_init_scbdata(struct ahc_softc *ahc);
static void ahc_fini_scbdata(struct ahc_softc *ahc);
static void ahc_qinfifo_requeue(struct ahc_softc *ahc,
struct scb *prev_scb,
struct scb *scb);
static int ahc_qinfifo_count(struct ahc_softc *ahc);
static u_int ahc_rem_scb_from_disc_list(struct ahc_softc *ahc,
u_int prev, u_int scbptr);
static void ahc_add_curscb_to_free_list(struct ahc_softc *ahc);
static u_int ahc_rem_wscb(struct ahc_softc *ahc,
u_int scbpos, u_int prev);
static void ahc_reset_current_bus(struct ahc_softc *ahc);
#ifdef AHC_DUMP_SEQ
static void ahc_dumpseq(struct ahc_softc *ahc);
#endif
static int ahc_loadseq(struct ahc_softc *ahc);
static int ahc_check_patch(struct ahc_softc *ahc,
const struct patch **start_patch,
u_int start_instr, u_int *skip_addr);
static void ahc_download_instr(struct ahc_softc *ahc,
u_int instrptr, uint8_t *dconsts);
#ifdef AHC_TARGET_MODE
static void ahc_queue_lstate_event(struct ahc_softc *ahc,
struct ahc_tmode_lstate *lstate,
u_int initiator_id,
u_int event_type,
u_int event_arg);
static void ahc_update_scsiid(struct ahc_softc *ahc,
u_int targid_mask);
static int ahc_handle_target_cmd(struct ahc_softc *ahc,
struct target_cmd *cmd);
#endif
static u_int ahc_index_busy_tcl(struct ahc_softc *ahc, u_int tcl);
static void ahc_unbusy_tcl(struct ahc_softc *ahc, u_int tcl);
static void ahc_busy_tcl(struct ahc_softc *ahc,
u_int tcl, u_int busyid);
/************************** SCB and SCB queue management **********************/
static void ahc_run_untagged_queues(struct ahc_softc *ahc);
static void ahc_run_untagged_queue(struct ahc_softc *ahc,
struct scb_tailq *queue);
/****************************** Initialization ********************************/
static void ahc_alloc_scbs(struct ahc_softc *ahc);
static void ahc_shutdown(void *arg);
/*************************** Interrupt Services *******************************/
static void ahc_clear_intstat(struct ahc_softc *ahc);
static void ahc_run_qoutfifo(struct ahc_softc *ahc);
#ifdef AHC_TARGET_MODE
static void ahc_run_tqinfifo(struct ahc_softc *ahc, int paused);
#endif
static void ahc_handle_brkadrint(struct ahc_softc *ahc);
static void ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat);
static void ahc_handle_scsiint(struct ahc_softc *ahc,
u_int intstat);
static void ahc_clear_critical_section(struct ahc_softc *ahc);
/***************************** Error Recovery *********************************/
static void ahc_freeze_devq(struct ahc_softc *ahc, struct scb *scb);
static int ahc_abort_scbs(struct ahc_softc *ahc, int target,
char channel, int lun, u_int tag,
role_t role, uint32_t status);
static void ahc_calc_residual(struct ahc_softc *ahc,
struct scb *scb);
/*********************** Untagged Transaction Routines ************************/
static inline void ahc_freeze_untagged_queues(struct ahc_softc *ahc);
static inline void ahc_release_untagged_queues(struct ahc_softc *ahc);
/*
* Block our completion routine from starting the next untagged
* transaction for this target or target lun.
*/
static inline void
ahc_freeze_untagged_queues(struct ahc_softc *ahc)
{
if ((ahc->flags & AHC_SCB_BTT) == 0)
ahc->untagged_queue_lock++;
}
/*
* Allow the next untagged transaction for this target or target lun
* to be executed. We use a counting semaphore to allow the lock
* to be acquired recursively. Once the count drops to zero, the
* transaction queues will be run.
*/
static inline void
ahc_release_untagged_queues(struct ahc_softc *ahc)
{
if ((ahc->flags & AHC_SCB_BTT) == 0) {
ahc->untagged_queue_lock--;
if (ahc->untagged_queue_lock == 0)
ahc_run_untagged_queues(ahc);
}
}
/************************* Sequencer Execution Control ************************/
/*
* Work around any chip bugs related to halting sequencer execution.
* On Ultra2 controllers, we must clear the CIOBUS stretch signal by
* reading a register that will set this signal and deassert it.
* Without this workaround, if the chip is paused, by an interrupt or
* manual pause while accessing scb ram, accesses to certain registers
* will hang the system (infinite pci retries).
*/
static void
ahc_pause_bug_fix(struct ahc_softc *ahc)
{
if ((ahc->features & AHC_ULTRA2) != 0)
(void)ahc_inb(ahc, CCSCBCTL);
}
/*
* Determine whether the sequencer has halted code execution.
* Returns non-zero status if the sequencer is stopped.
*/
int
ahc_is_paused(struct ahc_softc *ahc)
{
return ((ahc_inb(ahc, HCNTRL) & PAUSE) != 0);
}
/*
* Request that the sequencer stop and wait, indefinitely, for it
* to stop. The sequencer will only acknowledge that it is paused
* once it has reached an instruction boundary and PAUSEDIS is
* cleared in the SEQCTL register. The sequencer may use PAUSEDIS
* for critical sections.
*/
void
ahc_pause(struct ahc_softc *ahc)
{
ahc_outb(ahc, HCNTRL, ahc->pause);
/*
* Since the sequencer can disable pausing in a critical section, we
* must loop until it actually stops.
*/
while (ahc_is_paused(ahc) == 0)
;
ahc_pause_bug_fix(ahc);
}
/*
* Allow the sequencer to continue program execution.
* We check here to ensure that no additional interrupt
* sources that would cause the sequencer to halt have been
* asserted. If, for example, a SCSI bus reset is detected
* while we are fielding a different, pausing, interrupt type,
* we don't want to release the sequencer before going back
* into our interrupt handler and dealing with this new
* condition.
*/
void
ahc_unpause(struct ahc_softc *ahc)
{
if ((ahc_inb(ahc, INTSTAT) & (SCSIINT | SEQINT | BRKADRINT)) == 0)
ahc_outb(ahc, HCNTRL, ahc->unpause);
}
/************************** Memory mapping routines ***************************/
static struct ahc_dma_seg *
ahc_sg_bus_to_virt(struct scb *scb, uint32_t sg_busaddr)
{
int sg_index;
sg_index = (sg_busaddr - scb->sg_list_phys)/sizeof(struct ahc_dma_seg);
/* sg_list_phys points to entry 1, not 0 */
sg_index++;
return (&scb->sg_list[sg_index]);
}
static uint32_t
ahc_sg_virt_to_bus(struct scb *scb, struct ahc_dma_seg *sg)
{
int sg_index;
/* sg_list_phys points to entry 1, not 0 */
sg_index = sg - &scb->sg_list[1];
return (scb->sg_list_phys + (sg_index * sizeof(*scb->sg_list)));
}
static uint32_t
ahc_hscb_busaddr(struct ahc_softc *ahc, u_int index)
{
return (ahc->scb_data->hscb_busaddr
+ (sizeof(struct hardware_scb) * index));
}
static void
ahc_sync_scb(struct ahc_softc *ahc, struct scb *scb, int op)
{
ahc_dmamap_sync(ahc, ahc->scb_data->hscb_dmat,
ahc->scb_data->hscb_dmamap,
/*offset*/(scb->hscb - ahc->hscbs) * sizeof(*scb->hscb),
/*len*/sizeof(*scb->hscb), op);
}
void
ahc_sync_sglist(struct ahc_softc *ahc, struct scb *scb, int op)
{
if (scb->sg_count == 0)
return;
ahc_dmamap_sync(ahc, ahc->scb_data->sg_dmat, scb->sg_map->sg_dmamap,
/*offset*/(scb->sg_list - scb->sg_map->sg_vaddr)
* sizeof(struct ahc_dma_seg),
/*len*/sizeof(struct ahc_dma_seg) * scb->sg_count, op);
}
#ifdef AHC_TARGET_MODE
static uint32_t
ahc_targetcmd_offset(struct ahc_softc *ahc, u_int index)
{
return (((uint8_t *)&ahc->targetcmds[index]) - ahc->qoutfifo);
}
#endif
/*********************** Miscellaneous Support Functions ***********************/
/*
* Determine whether the sequencer reported a residual
* for this SCB/transaction.
*/
static void
ahc_update_residual(struct ahc_softc *ahc, struct scb *scb)
{
uint32_t sgptr;
sgptr = ahc_le32toh(scb->hscb->sgptr);
if ((sgptr & SG_RESID_VALID) != 0)
ahc_calc_residual(ahc, scb);
}
/*
* Return pointers to the transfer negotiation information
* for the specified our_id/remote_id pair.
*/
struct ahc_initiator_tinfo *
ahc_fetch_transinfo(struct ahc_softc *ahc, char channel, u_int our_id,
u_int remote_id, struct ahc_tmode_tstate **tstate)
{
/*
* Transfer data structures are stored from the perspective
* of the target role. Since the parameters for a connection
* in the initiator role to a given target are the same as
* when the roles are reversed, we pretend we are the target.
*/
if (channel == 'B')
our_id += 8;
*tstate = ahc->enabled_targets[our_id];
return (&(*tstate)->transinfo[remote_id]);
}
uint16_t
ahc_inw(struct ahc_softc *ahc, u_int port)
{
uint16_t r = ahc_inb(ahc, port+1) << 8;
return r | ahc_inb(ahc, port);
}
void
ahc_outw(struct ahc_softc *ahc, u_int port, u_int value)
{
ahc_outb(ahc, port, value & 0xFF);
ahc_outb(ahc, port+1, (value >> 8) & 0xFF);
}
uint32_t
ahc_inl(struct ahc_softc *ahc, u_int port)
{
return ((ahc_inb(ahc, port))
| (ahc_inb(ahc, port+1) << 8)
| (ahc_inb(ahc, port+2) << 16)
| (ahc_inb(ahc, port+3) << 24));
}
void
ahc_outl(struct ahc_softc *ahc, u_int port, uint32_t value)
{
ahc_outb(ahc, port, (value) & 0xFF);
ahc_outb(ahc, port+1, ((value) >> 8) & 0xFF);
ahc_outb(ahc, port+2, ((value) >> 16) & 0xFF);
ahc_outb(ahc, port+3, ((value) >> 24) & 0xFF);
}
uint64_t
ahc_inq(struct ahc_softc *ahc, u_int port)
{
return ((ahc_inb(ahc, port))
| (ahc_inb(ahc, port+1) << 8)
| (ahc_inb(ahc, port+2) << 16)
| (((uint64_t)ahc_inb(ahc, port+3)) << 24)
| (((uint64_t)ahc_inb(ahc, port+4)) << 32)
| (((uint64_t)ahc_inb(ahc, port+5)) << 40)
| (((uint64_t)ahc_inb(ahc, port+6)) << 48)
| (((uint64_t)ahc_inb(ahc, port+7)) << 56));
}
void
ahc_outq(struct ahc_softc *ahc, u_int port, uint64_t value)
{
ahc_outb(ahc, port, value & 0xFF);
ahc_outb(ahc, port+1, (value >> 8) & 0xFF);
ahc_outb(ahc, port+2, (value >> 16) & 0xFF);
ahc_outb(ahc, port+3, (value >> 24) & 0xFF);
ahc_outb(ahc, port+4, (value >> 32) & 0xFF);
ahc_outb(ahc, port+5, (value >> 40) & 0xFF);
ahc_outb(ahc, port+6, (value >> 48) & 0xFF);
ahc_outb(ahc, port+7, (value >> 56) & 0xFF);
}
/*
* Get a free scb. If there are none, see if we can allocate a new SCB.
*/
struct scb *
ahc_get_scb(struct ahc_softc *ahc)
{
struct scb *scb;
if ((scb = SLIST_FIRST(&ahc->scb_data->free_scbs)) == NULL) {
ahc_alloc_scbs(ahc);
scb = SLIST_FIRST(&ahc->scb_data->free_scbs);
if (scb == NULL)
return (NULL);
}
SLIST_REMOVE_HEAD(&ahc->scb_data->free_scbs, links.sle);
return (scb);
}
/*
* Return an SCB resource to the free list.
*/
void
ahc_free_scb(struct ahc_softc *ahc, struct scb *scb)
{
struct hardware_scb *hscb;
hscb = scb->hscb;
/* Clean up for the next user */
ahc->scb_data->scbindex[hscb->tag] = NULL;
scb->flags = SCB_FREE;
hscb->control = 0;
SLIST_INSERT_HEAD(&ahc->scb_data->free_scbs, scb, links.sle);
/* Notify the OSM that a resource is now available. */
ahc_platform_scb_free(ahc, scb);
}
struct scb *
ahc_lookup_scb(struct ahc_softc *ahc, u_int tag)
{
struct scb* scb;
scb = ahc->scb_data->scbindex[tag];
if (scb != NULL)
ahc_sync_scb(ahc, scb,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
return (scb);
}
static void
ahc_swap_with_next_hscb(struct ahc_softc *ahc, struct scb *scb)
{
struct hardware_scb *q_hscb;
u_int saved_tag;
/*
* Our queuing method is a bit tricky. The card
* knows in advance which HSCB to download, and we
* can't disappoint it. To achieve this, the next
* SCB to download is saved off in ahc->next_queued_scb.
* When we are called to queue "an arbitrary scb",
* we copy the contents of the incoming HSCB to the one
* the sequencer knows about, swap HSCB pointers and
* finally assign the SCB to the tag indexed location
* in the scb_array. This makes sure that we can still
* locate the correct SCB by SCB_TAG.
*/
q_hscb = ahc->next_queued_scb->hscb;
saved_tag = q_hscb->tag;
memcpy(q_hscb, scb->hscb, sizeof(*scb->hscb));
if ((scb->flags & SCB_CDB32_PTR) != 0) {
q_hscb->shared_data.cdb_ptr =
ahc_htole32(ahc_hscb_busaddr(ahc, q_hscb->tag)
+ offsetof(struct hardware_scb, cdb32));
}
q_hscb->tag = saved_tag;
q_hscb->next = scb->hscb->tag;
/* Now swap HSCB pointers. */
ahc->next_queued_scb->hscb = scb->hscb;
scb->hscb = q_hscb;
/* Now define the mapping from tag to SCB in the scbindex */
ahc->scb_data->scbindex[scb->hscb->tag] = scb;
}
/*
* Tell the sequencer about a new transaction to execute.
*/
void
ahc_queue_scb(struct ahc_softc *ahc, struct scb *scb)
{
ahc_swap_with_next_hscb(ahc, scb);
if (scb->hscb->tag == SCB_LIST_NULL
|| scb->hscb->next == SCB_LIST_NULL)
panic("Attempt to queue invalid SCB tag %x:%x\n",
scb->hscb->tag, scb->hscb->next);
/*
* Setup data "oddness".
*/
scb->hscb->lun &= LID;
if (ahc_get_transfer_length(scb) & 0x1)
scb->hscb->lun |= SCB_XFERLEN_ODD;
/*
* Keep a history of SCBs we've downloaded in the qinfifo.
*/
ahc->qinfifo[ahc->qinfifonext++] = scb->hscb->tag;
/*
* Make sure our data is consistent from the
* perspective of the adapter.
*/
ahc_sync_scb(ahc, scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
/* Tell the adapter about the newly queued SCB */
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
ahc_outb(ahc, HNSCB_QOFF, ahc->qinfifonext);
} else {
if ((ahc->features & AHC_AUTOPAUSE) == 0)
ahc_pause(ahc);
ahc_outb(ahc, KERNEL_QINPOS, ahc->qinfifonext);
if ((ahc->features & AHC_AUTOPAUSE) == 0)
ahc_unpause(ahc);
}
}
struct scsi_sense_data *
ahc_get_sense_buf(struct ahc_softc *ahc, struct scb *scb)
{
int offset;
offset = scb - ahc->scb_data->scbarray;
return (&ahc->scb_data->sense[offset]);
}
static uint32_t
ahc_get_sense_bufaddr(struct ahc_softc *ahc, struct scb *scb)
{
int offset;
offset = scb - ahc->scb_data->scbarray;
return (ahc->scb_data->sense_busaddr
+ (offset * sizeof(struct scsi_sense_data)));
}
/************************** Interrupt Processing ******************************/
static void
ahc_sync_qoutfifo(struct ahc_softc *ahc, int op)
{
ahc_dmamap_sync(ahc, ahc->shared_data_dmat, ahc->shared_data_dmamap,
/*offset*/0, /*len*/256, op);
}
static void
ahc_sync_tqinfifo(struct ahc_softc *ahc, int op)
{
#ifdef AHC_TARGET_MODE
if ((ahc->flags & AHC_TARGETROLE) != 0) {
ahc_dmamap_sync(ahc, ahc->shared_data_dmat,
ahc->shared_data_dmamap,
ahc_targetcmd_offset(ahc, 0),
sizeof(struct target_cmd) * AHC_TMODE_CMDS,
op);
}
#endif
}
/*
* See if the firmware has posted any completed commands
* into our in-core command complete fifos.
*/
#define AHC_RUN_QOUTFIFO 0x1
#define AHC_RUN_TQINFIFO 0x2
static u_int
ahc_check_cmdcmpltqueues(struct ahc_softc *ahc)
{
u_int retval;
retval = 0;
ahc_dmamap_sync(ahc, ahc->shared_data_dmat, ahc->shared_data_dmamap,
/*offset*/ahc->qoutfifonext, /*len*/1,
BUS_DMASYNC_POSTREAD);
if (ahc->qoutfifo[ahc->qoutfifonext] != SCB_LIST_NULL)
retval |= AHC_RUN_QOUTFIFO;
#ifdef AHC_TARGET_MODE
if ((ahc->flags & AHC_TARGETROLE) != 0
&& (ahc->flags & AHC_TQINFIFO_BLOCKED) == 0) {
ahc_dmamap_sync(ahc, ahc->shared_data_dmat,
ahc->shared_data_dmamap,
ahc_targetcmd_offset(ahc, ahc->tqinfifofnext),
/*len*/sizeof(struct target_cmd),
BUS_DMASYNC_POSTREAD);
if (ahc->targetcmds[ahc->tqinfifonext].cmd_valid != 0)
retval |= AHC_RUN_TQINFIFO;
}
#endif
return (retval);
}
/*
* Catch an interrupt from the adapter
*/
int
ahc_intr(struct ahc_softc *ahc)
{
u_int intstat;
if ((ahc->pause & INTEN) == 0) {
/*
* Our interrupt is not enabled on the chip
* and may be disabled for re-entrancy reasons,
* so just return. This is likely just a shared
* interrupt.
*/
return (0);
}
/*
* Instead of directly reading the interrupt status register,
* infer the cause of the interrupt by checking our in-core
* completion queues. This avoids a costly PCI bus read in
* most cases.
*/
if ((ahc->flags & (AHC_ALL_INTERRUPTS|AHC_EDGE_INTERRUPT)) == 0
&& (ahc_check_cmdcmpltqueues(ahc) != 0))
intstat = CMDCMPLT;
else {
intstat = ahc_inb(ahc, INTSTAT);
}
if ((intstat & INT_PEND) == 0) {
#if AHC_PCI_CONFIG > 0
if (ahc->unsolicited_ints > 500) {
ahc->unsolicited_ints = 0;
if ((ahc->chip & AHC_PCI) != 0
&& (ahc_inb(ahc, ERROR) & PCIERRSTAT) != 0)
ahc->bus_intr(ahc);
}
#endif
ahc->unsolicited_ints++;
return (0);
}
ahc->unsolicited_ints = 0;
if (intstat & CMDCMPLT) {
ahc_outb(ahc, CLRINT, CLRCMDINT);
/*
* Ensure that the chip sees that we've cleared
* this interrupt before we walk the output fifo.
* Otherwise, we may, due to posted bus writes,
* clear the interrupt after we finish the scan,
* and after the sequencer has added new entries
* and asserted the interrupt again.
*/
ahc_flush_device_writes(ahc);
ahc_run_qoutfifo(ahc);
#ifdef AHC_TARGET_MODE
if ((ahc->flags & AHC_TARGETROLE) != 0)
ahc_run_tqinfifo(ahc, /*paused*/FALSE);
#endif
}
/*
* Handle statuses that may invalidate our cached
* copy of INTSTAT separately.
*/
if (intstat == 0xFF && (ahc->features & AHC_REMOVABLE) != 0) {
/* Hot eject. Do nothing */
} else if (intstat & BRKADRINT) {
ahc_handle_brkadrint(ahc);
} else if ((intstat & (SEQINT|SCSIINT)) != 0) {
ahc_pause_bug_fix(ahc);
if ((intstat & SEQINT) != 0)
ahc_handle_seqint(ahc, intstat);
if ((intstat & SCSIINT) != 0)
ahc_handle_scsiint(ahc, intstat);
}
return (1);
}
/************************* Sequencer Execution Control ************************/
/*
* Restart the sequencer program from address zero
*/
static void
ahc_restart(struct ahc_softc *ahc)
{
uint8_t sblkctl;
ahc_pause(ahc);
/* No more pending messages. */
ahc_clear_msg_state(ahc);
ahc_outb(ahc, SCSISIGO, 0); /* De-assert BSY */
ahc_outb(ahc, MSG_OUT, NOP); /* No message to send */
ahc_outb(ahc, SXFRCTL1, ahc_inb(ahc, SXFRCTL1) & ~BITBUCKET);
ahc_outb(ahc, LASTPHASE, P_BUSFREE);
ahc_outb(ahc, SAVED_SCSIID, 0xFF);
ahc_outb(ahc, SAVED_LUN, 0xFF);
/*
* Ensure that the sequencer's idea of TQINPOS
* matches our own. The sequencer increments TQINPOS
* only after it sees a DMA complete and a reset could
* occur before the increment leaving the kernel to believe
* the command arrived but the sequencer to not.
*/
ahc_outb(ahc, TQINPOS, ahc->tqinfifonext);
/* Always allow reselection */
ahc_outb(ahc, SCSISEQ,
ahc_inb(ahc, SCSISEQ_TEMPLATE) & (ENSELI|ENRSELI|ENAUTOATNP));
if ((ahc->features & AHC_CMD_CHAN) != 0) {
/* Ensure that no DMA operations are in progress */
ahc_outb(ahc, CCSCBCNT, 0);
ahc_outb(ahc, CCSGCTL, 0);
ahc_outb(ahc, CCSCBCTL, 0);
}
/*
* If we were in the process of DMA'ing SCB data into
* an SCB, replace that SCB on the free list. This prevents
* an SCB leak.
*/
if ((ahc_inb(ahc, SEQ_FLAGS2) & SCB_DMA) != 0) {
ahc_add_curscb_to_free_list(ahc);
ahc_outb(ahc, SEQ_FLAGS2,
ahc_inb(ahc, SEQ_FLAGS2) & ~SCB_DMA);
}
/*
* Clear any pending sequencer interrupt. It is no
* longer relevant since we're resetting the Program
* Counter.
*/
ahc_outb(ahc, CLRINT, CLRSEQINT);
ahc_outb(ahc, MWI_RESIDUAL, 0);
ahc_outb(ahc, SEQCTL, ahc->seqctl);
ahc_outb(ahc, SEQADDR0, 0);
ahc_outb(ahc, SEQADDR1, 0);
/*
* Take the LED out of diagnostic mode on PM resume, too
*/
sblkctl = ahc_inb(ahc, SBLKCTL);
ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
ahc_unpause(ahc);
}
/************************* Input/Output Queues ********************************/
static void
ahc_run_qoutfifo(struct ahc_softc *ahc)
{
struct scb *scb;
u_int scb_index;
ahc_sync_qoutfifo(ahc, BUS_DMASYNC_POSTREAD);
while (ahc->qoutfifo[ahc->qoutfifonext] != SCB_LIST_NULL) {
scb_index = ahc->qoutfifo[ahc->qoutfifonext];
if ((ahc->qoutfifonext & 0x03) == 0x03) {
u_int modnext;
/*
* Clear 32bits of QOUTFIFO at a time
* so that we don't clobber an incoming
* byte DMA to the array on architectures
* that only support 32bit load and store
* operations.
*/
modnext = ahc->qoutfifonext & ~0x3;
*((uint32_t *)(&ahc->qoutfifo[modnext])) = 0xFFFFFFFFUL;
ahc_dmamap_sync(ahc, ahc->shared_data_dmat,
ahc->shared_data_dmamap,
/*offset*/modnext, /*len*/4,
BUS_DMASYNC_PREREAD);
}
ahc->qoutfifonext++;
scb = ahc_lookup_scb(ahc, scb_index);
if (scb == NULL) {
printk("%s: WARNING no command for scb %d "
"(cmdcmplt)\nQOUTPOS = %d\n",
ahc_name(ahc), scb_index,
(ahc->qoutfifonext - 1) & 0xFF);
continue;
}
/*
* Save off the residual
* if there is one.
*/
ahc_update_residual(ahc, scb);
ahc_done(ahc, scb);
}
}
static void
ahc_run_untagged_queues(struct ahc_softc *ahc)
{
int i;
for (i = 0; i < 16; i++)
ahc_run_untagged_queue(ahc, &ahc->untagged_queues[i]);
}
static void
ahc_run_untagged_queue(struct ahc_softc *ahc, struct scb_tailq *queue)
{
struct scb *scb;
if (ahc->untagged_queue_lock != 0)
return;
if ((scb = TAILQ_FIRST(queue)) != NULL
&& (scb->flags & SCB_ACTIVE) == 0) {
scb->flags |= SCB_ACTIVE;
ahc_queue_scb(ahc, scb);
}
}
/************************* Interrupt Handling *********************************/
static void
ahc_handle_brkadrint(struct ahc_softc *ahc)
{
/*
* We upset the sequencer :-(
* Lookup the error message
*/
int i;
int error;
error = ahc_inb(ahc, ERROR);
for (i = 0; error != 1 && i < num_errors; i++)
error >>= 1;
printk("%s: brkadrint, %s at seqaddr = 0x%x\n",
ahc_name(ahc), ahc_hard_errors[i].errmesg,
ahc_inb(ahc, SEQADDR0) |
(ahc_inb(ahc, SEQADDR1) << 8));
ahc_dump_card_state(ahc);
/* Tell everyone that this HBA is no longer available */
ahc_abort_scbs(ahc, CAM_TARGET_WILDCARD, ALL_CHANNELS,
CAM_LUN_WILDCARD, SCB_LIST_NULL, ROLE_UNKNOWN,
CAM_NO_HBA);
/* Disable all interrupt sources by resetting the controller */
ahc_shutdown(ahc);
}
static void
ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat)
{
struct scb *scb;
struct ahc_devinfo devinfo;
ahc_fetch_devinfo(ahc, &devinfo);
/*
* Clear the upper byte that holds SEQINT status
* codes and clear the SEQINT bit. We will unpause
* the sequencer, if appropriate, after servicing
* the request.
*/
ahc_outb(ahc, CLRINT, CLRSEQINT);
switch (intstat & SEQINT_MASK) {
case BAD_STATUS:
{
u_int scb_index;
struct hardware_scb *hscb;
/*
* Set the default return value to 0 (don't
* send sense). The sense code will change
* this if needed.
*/
ahc_outb(ahc, RETURN_1, 0);
/*
* The sequencer will notify us when a command
* has an error that would be of interest to
* the kernel. This allows us to leave the sequencer
* running in the common case of command completes
* without error. The sequencer will already have
* dma'd the SCB back up to us, so we can reference
* the in kernel copy directly.
*/
scb_index = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scb_index);
if (scb == NULL) {
ahc_print_devinfo(ahc, &devinfo);
printk("ahc_intr - referenced scb "
"not valid during seqint 0x%x scb(%d)\n",
intstat, scb_index);
ahc_dump_card_state(ahc);
panic("for safety");
goto unpause;
}
hscb = scb->hscb;
/* Don't want to clobber the original sense code */
if ((scb->flags & SCB_SENSE) != 0) {
/*
* Clear the SCB_SENSE Flag and have
* the sequencer do a normal command
* complete.
*/
scb->flags &= ~SCB_SENSE;
ahc_set_transaction_status(scb, CAM_AUTOSENSE_FAIL);
break;
}
ahc_set_transaction_status(scb, CAM_SCSI_STATUS_ERROR);
/* Freeze the queue until the client sees the error. */
ahc_freeze_devq(ahc, scb);
ahc_freeze_scb(scb);
ahc_set_scsi_status(scb, hscb->shared_data.status.scsi_status);
switch (hscb->shared_data.status.scsi_status) {
case SAM_STAT_GOOD:
printk("%s: Interrupted for status of 0???\n",
ahc_name(ahc));
break;
case SAM_STAT_COMMAND_TERMINATED:
case SAM_STAT_CHECK_CONDITION:
{
struct ahc_dma_seg *sg;
struct scsi_sense *sc;
struct ahc_initiator_tinfo *targ_info;
struct ahc_tmode_tstate *tstate;
struct ahc_transinfo *tinfo;
#ifdef AHC_DEBUG
if (ahc_debug & AHC_SHOW_SENSE) {
ahc_print_path(ahc, scb);
printk("SCB %d: requests Check Status\n",
scb->hscb->tag);
}
#endif
if (ahc_perform_autosense(scb) == 0)
break;
targ_info = ahc_fetch_transinfo(ahc,
devinfo.channel,
devinfo.our_scsiid,
devinfo.target,
&tstate);
tinfo = &targ_info->curr;
sg = scb->sg_list;
sc = (struct scsi_sense *)(&hscb->shared_data.cdb);
/*
* Save off the residual if there is one.
*/
ahc_update_residual(ahc, scb);
#ifdef AHC_DEBUG
if (ahc_debug & AHC_SHOW_SENSE) {
ahc_print_path(ahc, scb);
printk("Sending Sense\n");
}
#endif
sg->addr = ahc_get_sense_bufaddr(ahc, scb);
sg->len = ahc_get_sense_bufsize(ahc, scb);
sg->len |= AHC_DMA_LAST_SEG;
/* Fixup byte order */
sg->addr = ahc_htole32(sg->addr);
sg->len = ahc_htole32(sg->len);
sc->opcode = REQUEST_SENSE;
sc->byte2 = 0;
if (tinfo->protocol_version <= SCSI_REV_2
&& SCB_GET_LUN(scb) < 8)
sc->byte2 = SCB_GET_LUN(scb) << 5;
sc->unused[0] = 0;
sc->unused[1] = 0;
sc->length = sg->len;
sc->control = 0;
/*
* We can't allow the target to disconnect.
* This will be an untagged transaction and
* having the target disconnect will make this
* transaction indestinguishable from outstanding
* tagged transactions.
*/
hscb->control = 0;
/*
* This request sense could be because the
* the device lost power or in some other
* way has lost our transfer negotiations.
* Renegotiate if appropriate. Unit attention
* errors will be reported before any data
* phases occur.
*/
if (ahc_get_residual(scb)
== ahc_get_transfer_length(scb)) {
ahc_update_neg_request(ahc, &devinfo,
tstate, targ_info,
AHC_NEG_IF_NON_ASYNC);
}
if (tstate->auto_negotiate & devinfo.target_mask) {
hscb->control |= MK_MESSAGE;
scb->flags &= ~SCB_NEGOTIATE;
scb->flags |= SCB_AUTO_NEGOTIATE;
}
hscb->cdb_len = sizeof(*sc);
hscb->dataptr = sg->addr;
hscb->datacnt = sg->len;
hscb->sgptr = scb->sg_list_phys | SG_FULL_RESID;
hscb->sgptr = ahc_htole32(hscb->sgptr);
scb->sg_count = 1;
scb->flags |= SCB_SENSE;
ahc_qinfifo_requeue_tail(ahc, scb);
ahc_outb(ahc, RETURN_1, SEND_SENSE);
/*
* Ensure we have enough time to actually
* retrieve the sense.
*/
ahc_scb_timer_reset(scb, 5 * 1000000);
break;
}
default:
break;
}
break;
}
case NO_MATCH:
{
/* Ensure we don't leave the selection hardware on */
ahc_outb(ahc, SCSISEQ,
ahc_inb(ahc, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP));
printk("%s:%c:%d: no active SCB for reconnecting "
"target - issuing BUS DEVICE RESET\n",
ahc_name(ahc), devinfo.channel, devinfo.target);
printk("SAVED_SCSIID == 0x%x, SAVED_LUN == 0x%x, "
"ARG_1 == 0x%x ACCUM = 0x%x\n",
ahc_inb(ahc, SAVED_SCSIID), ahc_inb(ahc, SAVED_LUN),
ahc_inb(ahc, ARG_1), ahc_inb(ahc, ACCUM));
printk("SEQ_FLAGS == 0x%x, SCBPTR == 0x%x, BTT == 0x%x, "
"SINDEX == 0x%x\n",
ahc_inb(ahc, SEQ_FLAGS), ahc_inb(ahc, SCBPTR),
ahc_index_busy_tcl(ahc,
BUILD_TCL(ahc_inb(ahc, SAVED_SCSIID),
ahc_inb(ahc, SAVED_LUN))),
ahc_inb(ahc, SINDEX));
printk("SCSIID == 0x%x, SCB_SCSIID == 0x%x, SCB_LUN == 0x%x, "
"SCB_TAG == 0x%x, SCB_CONTROL == 0x%x\n",
ahc_inb(ahc, SCSIID), ahc_inb(ahc, SCB_SCSIID),
ahc_inb(ahc, SCB_LUN), ahc_inb(ahc, SCB_TAG),
ahc_inb(ahc, SCB_CONTROL));
printk("SCSIBUSL == 0x%x, SCSISIGI == 0x%x\n",
ahc_inb(ahc, SCSIBUSL), ahc_inb(ahc, SCSISIGI));
printk("SXFRCTL0 == 0x%x\n", ahc_inb(ahc, SXFRCTL0));
printk("SEQCTL == 0x%x\n", ahc_inb(ahc, SEQCTL));
ahc_dump_card_state(ahc);
ahc->msgout_buf[0] = TARGET_RESET;
ahc->msgout_len = 1;
ahc->msgout_index = 0;
ahc->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
ahc_outb(ahc, MSG_OUT, HOST_MSG);
ahc_assert_atn(ahc);
break;
}
case SEND_REJECT:
{
u_int rejbyte = ahc_inb(ahc, ACCUM);
printk("%s:%c:%d: Warning - unknown message received from "
"target (0x%x). Rejecting\n",
ahc_name(ahc), devinfo.channel, devinfo.target, rejbyte);
break;
}
case PROTO_VIOLATION:
{
ahc_handle_proto_violation(ahc);
break;
}
case IGN_WIDE_RES:
ahc_handle_ign_wide_residue(ahc, &devinfo);
break;
case PDATA_REINIT:
ahc_reinitialize_dataptrs(ahc);
break;
case BAD_PHASE:
{
u_int lastphase;
lastphase = ahc_inb(ahc, LASTPHASE);
printk("%s:%c:%d: unknown scsi bus phase %x, "
"lastphase = 0x%x. Attempting to continue\n",
ahc_name(ahc), devinfo.channel, devinfo.target,
lastphase, ahc_inb(ahc, SCSISIGI));
break;
}
case MISSED_BUSFREE:
{
u_int lastphase;
lastphase = ahc_inb(ahc, LASTPHASE);
printk("%s:%c:%d: Missed busfree. "
"Lastphase = 0x%x, Curphase = 0x%x\n",
ahc_name(ahc), devinfo.channel, devinfo.target,
lastphase, ahc_inb(ahc, SCSISIGI));
ahc_restart(ahc);
return;
}
case HOST_MSG_LOOP:
{
/*
* The sequencer has encountered a message phase
* that requires host assistance for completion.
* While handling the message phase(s), we will be
* notified by the sequencer after each byte is
* transferred so we can track bus phase changes.
*
* If this is the first time we've seen a HOST_MSG_LOOP
* interrupt, initialize the state of the host message
* loop.
*/
if (ahc->msg_type == MSG_TYPE_NONE) {
struct scb *scb;
u_int scb_index;
u_int bus_phase;
bus_phase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
if (bus_phase != P_MESGIN
&& bus_phase != P_MESGOUT) {
printk("ahc_intr: HOST_MSG_LOOP bad "
"phase 0x%x\n",
bus_phase);
/*
* Probably transitioned to bus free before
* we got here. Just punt the message.
*/
ahc_clear_intstat(ahc);
ahc_restart(ahc);
return;
}
scb_index = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scb_index);
if (devinfo.role == ROLE_INITIATOR) {
if (bus_phase == P_MESGOUT) {
if (scb == NULL)
panic("HOST_MSG_LOOP with "
"invalid SCB %x\n",
scb_index);
ahc_setup_initiator_msgout(ahc,
&devinfo,
scb);
} else {
ahc->msg_type =
MSG_TYPE_INITIATOR_MSGIN;
ahc->msgin_index = 0;
}
}
#ifdef AHC_TARGET_MODE
else {
if (bus_phase == P_MESGOUT) {
ahc->msg_type =
MSG_TYPE_TARGET_MSGOUT;
ahc->msgin_index = 0;
} else
ahc_setup_target_msgin(ahc,
&devinfo,
scb);
}
#endif
}
ahc_handle_message_phase(ahc);
break;
}
case PERR_DETECTED:
{
/*
* If we've cleared the parity error interrupt
* but the sequencer still believes that SCSIPERR
* is true, it must be that the parity error is
* for the currently presented byte on the bus,
* and we are not in a phase (data-in) where we will
* eventually ack this byte. Ack the byte and
* throw it away in the hope that the target will
* take us to message out to deliver the appropriate
* error message.
*/
if ((intstat & SCSIINT) == 0
&& (ahc_inb(ahc, SSTAT1) & SCSIPERR) != 0) {
if ((ahc->features & AHC_DT) == 0) {
u_int curphase;
/*
* The hardware will only let you ack bytes
* if the expected phase in SCSISIGO matches
* the current phase. Make sure this is
* currently the case.
*/
curphase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
ahc_outb(ahc, LASTPHASE, curphase);
ahc_outb(ahc, SCSISIGO, curphase);
}
if ((ahc_inb(ahc, SCSISIGI) & (CDI|MSGI)) == 0) {
int wait;
/*
* In a data phase. Faster to bitbucket
* the data than to individually ack each
* byte. This is also the only strategy
* that will work with AUTOACK enabled.
*/
ahc_outb(ahc, SXFRCTL1,
ahc_inb(ahc, SXFRCTL1) | BITBUCKET);
wait = 5000;
while (--wait != 0) {
if ((ahc_inb(ahc, SCSISIGI)
& (CDI|MSGI)) != 0)
break;
ahc_delay(100);
}
ahc_outb(ahc, SXFRCTL1,
ahc_inb(ahc, SXFRCTL1) & ~BITBUCKET);
if (wait == 0) {
struct scb *scb;
u_int scb_index;
ahc_print_devinfo(ahc, &devinfo);
printk("Unable to clear parity error. "
"Resetting bus.\n");
scb_index = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scb_index);
if (scb != NULL)
ahc_set_transaction_status(scb,
CAM_UNCOR_PARITY);
ahc_reset_channel(ahc, devinfo.channel,
/*init reset*/TRUE);
}
} else {
ahc_inb(ahc, SCSIDATL);
}
}
break;
}
case DATA_OVERRUN:
{
/*
* When the sequencer detects an overrun, it
* places the controller in "BITBUCKET" mode
* and allows the target to complete its transfer.
* Unfortunately, none of the counters get updated
* when the controller is in this mode, so we have
* no way of knowing how large the overrun was.
*/
u_int scbindex = ahc_inb(ahc, SCB_TAG);
u_int lastphase = ahc_inb(ahc, LASTPHASE);
u_int i;
scb = ahc_lookup_scb(ahc, scbindex);
for (i = 0; i < num_phases; i++) {
if (lastphase == ahc_phase_table[i].phase)
break;
}
ahc_print_path(ahc, scb);
printk("data overrun detected %s."
" Tag == 0x%x.\n",
ahc_phase_table[i].phasemsg,
scb->hscb->tag);
ahc_print_path(ahc, scb);
printk("%s seen Data Phase. Length = %ld. NumSGs = %d.\n",
ahc_inb(ahc, SEQ_FLAGS) & DPHASE ? "Have" : "Haven't",
ahc_get_transfer_length(scb), scb->sg_count);
if (scb->sg_count > 0) {
for (i = 0; i < scb->sg_count; i++) {
printk("sg[%d] - Addr 0x%x%x : Length %d\n",
i,
(ahc_le32toh(scb->sg_list[i].len) >> 24
& SG_HIGH_ADDR_BITS),
ahc_le32toh(scb->sg_list[i].addr),
ahc_le32toh(scb->sg_list[i].len)
& AHC_SG_LEN_MASK);
}
}
/*
* Set this and it will take effect when the
* target does a command complete.
*/
ahc_freeze_devq(ahc, scb);
if ((scb->flags & SCB_SENSE) == 0) {
ahc_set_transaction_status(scb, CAM_DATA_RUN_ERR);
} else {
scb->flags &= ~SCB_SENSE;
ahc_set_transaction_status(scb, CAM_AUTOSENSE_FAIL);
}
ahc_freeze_scb(scb);
if ((ahc->features & AHC_ULTRA2) != 0) {
/*
* Clear the channel in case we return
* to data phase later.
*/
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | CLRSTCNT|CLRCHN);
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | CLRSTCNT|CLRCHN);
}
if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
u_int dscommand1;
/* Ensure HHADDR is 0 for future DMA operations. */
dscommand1 = ahc_inb(ahc, DSCOMMAND1);
ahc_outb(ahc, DSCOMMAND1, dscommand1 | HADDLDSEL0);
ahc_outb(ahc, HADDR, 0);
ahc_outb(ahc, DSCOMMAND1, dscommand1);
}
break;
}
case MKMSG_FAILED:
{
u_int scbindex;
printk("%s:%c:%d:%d: Attempt to issue message failed\n",
ahc_name(ahc), devinfo.channel, devinfo.target,
devinfo.lun);
scbindex = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scbindex);
if (scb != NULL
&& (scb->flags & SCB_RECOVERY_SCB) != 0)
/*
* Ensure that we didn't put a second instance of this
* SCB into the QINFIFO.
*/
ahc_search_qinfifo(ahc, SCB_GET_TARGET(ahc, scb),
SCB_GET_CHANNEL(ahc, scb),
SCB_GET_LUN(scb), scb->hscb->tag,
ROLE_INITIATOR, /*status*/0,
SEARCH_REMOVE);
break;
}
case NO_FREE_SCB:
{
printk("%s: No free or disconnected SCBs\n", ahc_name(ahc));
ahc_dump_card_state(ahc);
panic("for safety");
break;
}
case SCB_MISMATCH:
{
u_int scbptr;
scbptr = ahc_inb(ahc, SCBPTR);
printk("Bogus TAG after DMA. SCBPTR %d, tag %d, our tag %d\n",
scbptr, ahc_inb(ahc, ARG_1),
ahc->scb_data->hscbs[scbptr].tag);
ahc_dump_card_state(ahc);
panic("for safety");
break;
}
case OUT_OF_RANGE:
{
printk("%s: BTT calculation out of range\n", ahc_name(ahc));
printk("SAVED_SCSIID == 0x%x, SAVED_LUN == 0x%x, "
"ARG_1 == 0x%x ACCUM = 0x%x\n",
ahc_inb(ahc, SAVED_SCSIID), ahc_inb(ahc, SAVED_LUN),
ahc_inb(ahc, ARG_1), ahc_inb(ahc, ACCUM));
printk("SEQ_FLAGS == 0x%x, SCBPTR == 0x%x, BTT == 0x%x, "
"SINDEX == 0x%x\n, A == 0x%x\n",
ahc_inb(ahc, SEQ_FLAGS), ahc_inb(ahc, SCBPTR),
ahc_index_busy_tcl(ahc,
BUILD_TCL(ahc_inb(ahc, SAVED_SCSIID),
ahc_inb(ahc, SAVED_LUN))),
ahc_inb(ahc, SINDEX),
ahc_inb(ahc, ACCUM));
printk("SCSIID == 0x%x, SCB_SCSIID == 0x%x, SCB_LUN == 0x%x, "
"SCB_TAG == 0x%x, SCB_CONTROL == 0x%x\n",
ahc_inb(ahc, SCSIID), ahc_inb(ahc, SCB_SCSIID),
ahc_inb(ahc, SCB_LUN), ahc_inb(ahc, SCB_TAG),
ahc_inb(ahc, SCB_CONTROL));
printk("SCSIBUSL == 0x%x, SCSISIGI == 0x%x\n",
ahc_inb(ahc, SCSIBUSL), ahc_inb(ahc, SCSISIGI));
ahc_dump_card_state(ahc);
panic("for safety");
break;
}
default:
printk("ahc_intr: seqint, "
"intstat == 0x%x, scsisigi = 0x%x\n",
intstat, ahc_inb(ahc, SCSISIGI));
break;
}
unpause:
/*
* The sequencer is paused immediately on
* a SEQINT, so we should restart it when
* we're done.
*/
ahc_unpause(ahc);
}
static void
ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat)
{
u_int scb_index;
u_int status0;
u_int status;
struct scb *scb;
char cur_channel;
char intr_channel;
if ((ahc->features & AHC_TWIN) != 0
&& ((ahc_inb(ahc, SBLKCTL) & SELBUSB) != 0))
cur_channel = 'B';
else
cur_channel = 'A';
intr_channel = cur_channel;
if ((ahc->features & AHC_ULTRA2) != 0)
status0 = ahc_inb(ahc, SSTAT0) & IOERR;
else
status0 = 0;
status = ahc_inb(ahc, SSTAT1) & (SELTO|SCSIRSTI|BUSFREE|SCSIPERR);
if (status == 0 && status0 == 0) {
if ((ahc->features & AHC_TWIN) != 0) {
/* Try the other channel */
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) ^ SELBUSB);
status = ahc_inb(ahc, SSTAT1)
& (SELTO|SCSIRSTI|BUSFREE|SCSIPERR);
intr_channel = (cur_channel == 'A') ? 'B' : 'A';
}
if (status == 0) {
printk("%s: Spurious SCSI interrupt\n", ahc_name(ahc));
ahc_outb(ahc, CLRINT, CLRSCSIINT);
ahc_unpause(ahc);
return;
}
}
/* Make sure the sequencer is in a safe location. */
ahc_clear_critical_section(ahc);
scb_index = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scb_index);
if (scb != NULL
&& (ahc_inb(ahc, SEQ_FLAGS) & NOT_IDENTIFIED) != 0)
scb = NULL;
if ((ahc->features & AHC_ULTRA2) != 0
&& (status0 & IOERR) != 0) {
int now_lvd;
now_lvd = ahc_inb(ahc, SBLKCTL) & ENAB40;
printk("%s: Transceiver State Has Changed to %s mode\n",
ahc_name(ahc), now_lvd ? "LVD" : "SE");
ahc_outb(ahc, CLRSINT0, CLRIOERR);
/*
* When transitioning to SE mode, the reset line
* glitches, triggering an arbitration bug in some
* Ultra2 controllers. This bug is cleared when we
* assert the reset line. Since a reset glitch has
* already occurred with this transition and a
* transceiver state change is handled just like
* a bus reset anyway, asserting the reset line
* ourselves is safe.
*/
ahc_reset_channel(ahc, intr_channel,
/*Initiate Reset*/now_lvd == 0);
} else if ((status & SCSIRSTI) != 0) {
printk("%s: Someone reset channel %c\n",
ahc_name(ahc), intr_channel);
if (intr_channel != cur_channel)
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) ^ SELBUSB);
ahc_reset_channel(ahc, intr_channel, /*Initiate Reset*/FALSE);
} else if ((status & SCSIPERR) != 0) {
/*
* Determine the bus phase and queue an appropriate message.
* SCSIPERR is latched true as soon as a parity error
* occurs. If the sequencer acked the transfer that
* caused the parity error and the currently presented
* transfer on the bus has correct parity, SCSIPERR will
* be cleared by CLRSCSIPERR. Use this to determine if
* we should look at the last phase the sequencer recorded,
* or the current phase presented on the bus.
*/
struct ahc_devinfo devinfo;
u_int mesg_out;
u_int curphase;
u_int errorphase;
u_int lastphase;
u_int scsirate;
u_int i;
u_int sstat2;
int silent;
lastphase = ahc_inb(ahc, LASTPHASE);
curphase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
sstat2 = ahc_inb(ahc, SSTAT2);
ahc_outb(ahc, CLRSINT1, CLRSCSIPERR);
/*
* For all phases save DATA, the sequencer won't
* automatically ack a byte that has a parity error
* in it. So the only way that the current phase
* could be 'data-in' is if the parity error is for
* an already acked byte in the data phase. During
* synchronous data-in transfers, we may actually
* ack bytes before latching the current phase in
* LASTPHASE, leading to the discrepancy between
* curphase and lastphase.
*/
if ((ahc_inb(ahc, SSTAT1) & SCSIPERR) != 0
|| curphase == P_DATAIN || curphase == P_DATAIN_DT)
errorphase = curphase;
else
errorphase = lastphase;
for (i = 0; i < num_phases; i++) {
if (errorphase == ahc_phase_table[i].phase)
break;
}
mesg_out = ahc_phase_table[i].mesg_out;
silent = FALSE;
if (scb != NULL) {
if (SCB_IS_SILENT(scb))
silent = TRUE;
else
ahc_print_path(ahc, scb);
scb->flags |= SCB_TRANSMISSION_ERROR;
} else
printk("%s:%c:%d: ", ahc_name(ahc), intr_channel,
SCSIID_TARGET(ahc, ahc_inb(ahc, SAVED_SCSIID)));
scsirate = ahc_inb(ahc, SCSIRATE);
if (silent == FALSE) {
printk("parity error detected %s. "
"SEQADDR(0x%x) SCSIRATE(0x%x)\n",
ahc_phase_table[i].phasemsg,
ahc_inw(ahc, SEQADDR0),
scsirate);
if ((ahc->features & AHC_DT) != 0) {
if ((sstat2 & CRCVALERR) != 0)
printk("\tCRC Value Mismatch\n");
if ((sstat2 & CRCENDERR) != 0)
printk("\tNo terminal CRC packet "
"received\n");
if ((sstat2 & CRCREQERR) != 0)
printk("\tIllegal CRC packet "
"request\n");
if ((sstat2 & DUAL_EDGE_ERR) != 0)
printk("\tUnexpected %sDT Data Phase\n",
(scsirate & SINGLE_EDGE)
? "" : "non-");
}
}
if ((ahc->features & AHC_DT) != 0
&& (sstat2 & DUAL_EDGE_ERR) != 0) {
/*
* This error applies regardless of
* data direction, so ignore the value
* in the phase table.
*/
mesg_out = INITIATOR_ERROR;
}
/*
* We've set the hardware to assert ATN if we
* get a parity error on "in" phases, so all we
* need to do is stuff the message buffer with
* the appropriate message. "In" phases have set
* mesg_out to something other than MSG_NOP.
*/
if (mesg_out != NOP) {
if (ahc->msg_type != MSG_TYPE_NONE)
ahc->send_msg_perror = TRUE;
else
ahc_outb(ahc, MSG_OUT, mesg_out);
}
/*
* Force a renegotiation with this target just in
* case we are out of sync for some external reason
* unknown (or unreported) by the target.
*/
ahc_fetch_devinfo(ahc, &devinfo);
ahc_force_renegotiation(ahc, &devinfo);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
ahc_unpause(ahc);
} else if ((status & SELTO) != 0) {
u_int scbptr;
/* Stop the selection */
ahc_outb(ahc, SCSISEQ, 0);
/* No more pending messages */
ahc_clear_msg_state(ahc);
/* Clear interrupt state */
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) & ~ENBUSFREE);
ahc_outb(ahc, CLRSINT1, CLRSELTIMEO|CLRBUSFREE|CLRSCSIPERR);
/*
* Although the driver does not care about the
* 'Selection in Progress' status bit, the busy
* LED does. SELINGO is only cleared by a successful
* selection, so we must manually clear it to insure
* the LED turns off just incase no future successful
* selections occur (e.g. no devices on the bus).
*/
ahc_outb(ahc, CLRSINT0, CLRSELINGO);
scbptr = ahc_inb(ahc, WAITING_SCBH);
ahc_outb(ahc, SCBPTR, scbptr);
scb_index = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scb_index);
if (scb == NULL) {
printk("%s: ahc_intr - referenced scb not "
"valid during SELTO scb(%d, %d)\n",
ahc_name(ahc), scbptr, scb_index);
ahc_dump_card_state(ahc);
} else {
struct ahc_devinfo devinfo;
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_SELTO) != 0) {
ahc_print_path(ahc, scb);
printk("Saw Selection Timeout for SCB 0x%x\n",
scb_index);
}
#endif
ahc_scb_devinfo(ahc, &devinfo, scb);
ahc_set_transaction_status(scb, CAM_SEL_TIMEOUT);
ahc_freeze_devq(ahc, scb);
/*
* Cancel any pending transactions on the device
* now that it seems to be missing. This will
* also revert us to async/narrow transfers until
* we can renegotiate with the device.
*/
ahc_handle_devreset(ahc, &devinfo,
CAM_SEL_TIMEOUT,
"Selection Timeout",
/*verbose_level*/1);
}
ahc_outb(ahc, CLRINT, CLRSCSIINT);
ahc_restart(ahc);
} else if ((status & BUSFREE) != 0
&& (ahc_inb(ahc, SIMODE1) & ENBUSFREE) != 0) {
struct ahc_devinfo devinfo;
u_int lastphase;
u_int saved_scsiid;
u_int saved_lun;
u_int target;
u_int initiator_role_id;
char channel;
int printerror;
/*
* Clear our selection hardware as soon as possible.
* We may have an entry in the waiting Q for this target,
* that is affected by this busfree and we don't want to
* go about selecting the target while we handle the event.
*/
ahc_outb(ahc, SCSISEQ,
ahc_inb(ahc, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP));
/*
* Disable busfree interrupts and clear the busfree
* interrupt status. We do this here so that several
* bus transactions occur prior to clearing the SCSIINT
* latch. It can take a bit for the clearing to take effect.
*/
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) & ~ENBUSFREE);
ahc_outb(ahc, CLRSINT1, CLRBUSFREE|CLRSCSIPERR);
/*
* Look at what phase we were last in.
* If its message out, chances are pretty good
* that the busfree was in response to one of
* our abort requests.
*/
lastphase = ahc_inb(ahc, LASTPHASE);
saved_scsiid = ahc_inb(ahc, SAVED_SCSIID);
saved_lun = ahc_inb(ahc, SAVED_LUN);
target = SCSIID_TARGET(ahc, saved_scsiid);
initiator_role_id = SCSIID_OUR_ID(saved_scsiid);
channel = SCSIID_CHANNEL(ahc, saved_scsiid);
ahc_compile_devinfo(&devinfo, initiator_role_id,
target, saved_lun, channel, ROLE_INITIATOR);
printerror = 1;
if (lastphase == P_MESGOUT) {
u_int tag;
tag = SCB_LIST_NULL;
if (ahc_sent_msg(ahc, AHCMSG_1B, ABORT_TASK, TRUE)
|| ahc_sent_msg(ahc, AHCMSG_1B, ABORT_TASK_SET, TRUE)) {
if (ahc->msgout_buf[ahc->msgout_index - 1]
== ABORT_TASK)
tag = scb->hscb->tag;
ahc_print_path(ahc, scb);
printk("SCB %d - Abort%s Completed.\n",
scb->hscb->tag, tag == SCB_LIST_NULL ?
"" : " Tag");
ahc_abort_scbs(ahc, target, channel,
saved_lun, tag,
ROLE_INITIATOR,
CAM_REQ_ABORTED);
printerror = 0;
} else if (ahc_sent_msg(ahc, AHCMSG_1B,
TARGET_RESET, TRUE)) {
ahc_compile_devinfo(&devinfo,
initiator_role_id,
target,
CAM_LUN_WILDCARD,
channel,
ROLE_INITIATOR);
ahc_handle_devreset(ahc, &devinfo,
CAM_BDR_SENT,
"Bus Device Reset",
/*verbose_level*/0);
printerror = 0;
} else if (ahc_sent_msg(ahc, AHCMSG_EXT,
EXTENDED_PPR, FALSE)) {
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
/*
* PPR Rejected. Try non-ppr negotiation
* and retry command.
*/
tinfo = ahc_fetch_transinfo(ahc,
devinfo.channel,
devinfo.our_scsiid,
devinfo.target,
&tstate);
tinfo->curr.transport_version = 2;
tinfo->goal.transport_version = 2;
tinfo->goal.ppr_options = 0;
ahc_qinfifo_requeue_tail(ahc, scb);
printerror = 0;
} else if (ahc_sent_msg(ahc, AHCMSG_EXT,
EXTENDED_WDTR, FALSE)) {
/*
* Negotiation Rejected. Go-narrow and
* retry command.
*/
ahc_set_width(ahc, &devinfo,
MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_CUR|AHC_TRANS_GOAL,
/*paused*/TRUE);
ahc_qinfifo_requeue_tail(ahc, scb);
printerror = 0;
} else if (ahc_sent_msg(ahc, AHCMSG_EXT,
EXTENDED_SDTR, FALSE)) {
/*
* Negotiation Rejected. Go-async and
* retry command.
*/
ahc_set_syncrate(ahc, &devinfo,
/*syncrate*/NULL,
/*period*/0, /*offset*/0,
/*ppr_options*/0,
AHC_TRANS_CUR|AHC_TRANS_GOAL,
/*paused*/TRUE);
ahc_qinfifo_requeue_tail(ahc, scb);
printerror = 0;
}
}
if (printerror != 0) {
u_int i;
if (scb != NULL) {
u_int tag;
if ((scb->hscb->control & TAG_ENB) != 0)
tag = scb->hscb->tag;
else
tag = SCB_LIST_NULL;
ahc_print_path(ahc, scb);
ahc_abort_scbs(ahc, target, channel,
SCB_GET_LUN(scb), tag,
ROLE_INITIATOR,
CAM_UNEXP_BUSFREE);
} else {
/*
* We had not fully identified this connection,
* so we cannot abort anything.
*/
printk("%s: ", ahc_name(ahc));
}
for (i = 0; i < num_phases; i++) {
if (lastphase == ahc_phase_table[i].phase)
break;
}
if (lastphase != P_BUSFREE) {
/*
* Renegotiate with this device at the
* next opportunity just in case this busfree
* is due to a negotiation mismatch with the
* device.
*/
ahc_force_renegotiation(ahc, &devinfo);
}
printk("Unexpected busfree %s\n"
"SEQADDR == 0x%x\n",
ahc_phase_table[i].phasemsg,
ahc_inb(ahc, SEQADDR0)
| (ahc_inb(ahc, SEQADDR1) << 8));
}
ahc_outb(ahc, CLRINT, CLRSCSIINT);
ahc_restart(ahc);
} else {
printk("%s: Missing case in ahc_handle_scsiint. status = %x\n",
ahc_name(ahc), status);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
}
}
/*
* Force renegotiation to occur the next time we initiate
* a command to the current device.
*/
static void
ahc_force_renegotiation(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
struct ahc_initiator_tinfo *targ_info;
struct ahc_tmode_tstate *tstate;
targ_info = ahc_fetch_transinfo(ahc,
devinfo->channel,
devinfo->our_scsiid,
devinfo->target,
&tstate);
ahc_update_neg_request(ahc, devinfo, tstate,
targ_info, AHC_NEG_IF_NON_ASYNC);
}
#define AHC_MAX_STEPS 2000
static void
ahc_clear_critical_section(struct ahc_softc *ahc)
{
int stepping;
int steps;
u_int simode0;
u_int simode1;
if (ahc->num_critical_sections == 0)
return;
stepping = FALSE;
steps = 0;
simode0 = 0;
simode1 = 0;
for (;;) {
struct cs *cs;
u_int seqaddr;
u_int i;
seqaddr = ahc_inb(ahc, SEQADDR0)
| (ahc_inb(ahc, SEQADDR1) << 8);
/*
* Seqaddr represents the next instruction to execute,
* so we are really executing the instruction just
* before it.
*/
if (seqaddr != 0)
seqaddr -= 1;
cs = ahc->critical_sections;
for (i = 0; i < ahc->num_critical_sections; i++, cs++) {
if (cs->begin < seqaddr && cs->end >= seqaddr)
break;
}
if (i == ahc->num_critical_sections)
break;
if (steps > AHC_MAX_STEPS) {
printk("%s: Infinite loop in critical section\n",
ahc_name(ahc));
ahc_dump_card_state(ahc);
panic("critical section loop");
}
steps++;
if (stepping == FALSE) {
/*
* Disable all interrupt sources so that the
* sequencer will not be stuck by a pausing
* interrupt condition while we attempt to
* leave a critical section.
*/
simode0 = ahc_inb(ahc, SIMODE0);
ahc_outb(ahc, SIMODE0, 0);
simode1 = ahc_inb(ahc, SIMODE1);
if ((ahc->features & AHC_DT) != 0)
/*
* On DT class controllers, we
* use the enhanced busfree logic.
* Unfortunately we cannot re-enable
* busfree detection within the
* current connection, so we must
* leave it on while single stepping.
*/
ahc_outb(ahc, SIMODE1, simode1 & ENBUSFREE);
else
ahc_outb(ahc, SIMODE1, 0);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
ahc_outb(ahc, SEQCTL, ahc->seqctl | STEP);
stepping = TRUE;
}
if ((ahc->features & AHC_DT) != 0) {
ahc_outb(ahc, CLRSINT1, CLRBUSFREE);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
}
ahc_outb(ahc, HCNTRL, ahc->unpause);
while (!ahc_is_paused(ahc))
ahc_delay(200);
}
if (stepping) {
ahc_outb(ahc, SIMODE0, simode0);
ahc_outb(ahc, SIMODE1, simode1);
ahc_outb(ahc, SEQCTL, ahc->seqctl);
}
}
/*
* Clear any pending interrupt status.
*/
static void
ahc_clear_intstat(struct ahc_softc *ahc)
{
/* Clear any interrupt conditions this may have caused */
ahc_outb(ahc, CLRSINT1, CLRSELTIMEO|CLRATNO|CLRSCSIRSTI
|CLRBUSFREE|CLRSCSIPERR|CLRPHASECHG|
CLRREQINIT);
ahc_flush_device_writes(ahc);
ahc_outb(ahc, CLRSINT0, CLRSELDO|CLRSELDI|CLRSELINGO);
ahc_flush_device_writes(ahc);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
ahc_flush_device_writes(ahc);
}
/**************************** Debugging Routines ******************************/
#ifdef AHC_DEBUG
uint32_t ahc_debug = AHC_DEBUG_OPTS;
#endif
#if 0 /* unused */
static void
ahc_print_scb(struct scb *scb)
{
int i;
struct hardware_scb *hscb = scb->hscb;
printk("scb:%p control:0x%x scsiid:0x%x lun:%d cdb_len:%d\n",
(void *)scb,
hscb->control,
hscb->scsiid,
hscb->lun,
hscb->cdb_len);
printk("Shared Data: ");
for (i = 0; i < sizeof(hscb->shared_data.cdb); i++)
printk("%#02x", hscb->shared_data.cdb[i]);
printk(" dataptr:%#x datacnt:%#x sgptr:%#x tag:%#x\n",
ahc_le32toh(hscb->dataptr),
ahc_le32toh(hscb->datacnt),
ahc_le32toh(hscb->sgptr),
hscb->tag);
if (scb->sg_count > 0) {
for (i = 0; i < scb->sg_count; i++) {
printk("sg[%d] - Addr 0x%x%x : Length %d\n",
i,
(ahc_le32toh(scb->sg_list[i].len) >> 24
& SG_HIGH_ADDR_BITS),
ahc_le32toh(scb->sg_list[i].addr),
ahc_le32toh(scb->sg_list[i].len));
}
}
}
#endif
/************************* Transfer Negotiation *******************************/
/*
* Allocate per target mode instance (ID we respond to as a target)
* transfer negotiation data structures.
*/
static struct ahc_tmode_tstate *
ahc_alloc_tstate(struct ahc_softc *ahc, u_int scsi_id, char channel)
{
struct ahc_tmode_tstate *master_tstate;
struct ahc_tmode_tstate *tstate;
int i;
master_tstate = ahc->enabled_targets[ahc->our_id];
if (channel == 'B') {
scsi_id += 8;
master_tstate = ahc->enabled_targets[ahc->our_id_b + 8];
}
if (ahc->enabled_targets[scsi_id] != NULL
&& ahc->enabled_targets[scsi_id] != master_tstate)
panic("%s: ahc_alloc_tstate - Target already allocated",
ahc_name(ahc));
tstate = kmalloc(sizeof(*tstate), GFP_ATOMIC);
if (tstate == NULL)
return (NULL);
/*
* If we have allocated a master tstate, copy user settings from
* the master tstate (taken from SRAM or the EEPROM) for this
* channel, but reset our current and goal settings to async/narrow
* until an initiator talks to us.
*/
if (master_tstate != NULL) {
memcpy(tstate, master_tstate, sizeof(*tstate));
memset(tstate->enabled_luns, 0, sizeof(tstate->enabled_luns));
tstate->ultraenb = 0;
for (i = 0; i < AHC_NUM_TARGETS; i++) {
memset(&tstate->transinfo[i].curr, 0,
sizeof(tstate->transinfo[i].curr));
memset(&tstate->transinfo[i].goal, 0,
sizeof(tstate->transinfo[i].goal));
}
} else
memset(tstate, 0, sizeof(*tstate));
ahc->enabled_targets[scsi_id] = tstate;
return (tstate);
}
#ifdef AHC_TARGET_MODE
/*
* Free per target mode instance (ID we respond to as a target)
* transfer negotiation data structures.
*/
static void
ahc_free_tstate(struct ahc_softc *ahc, u_int scsi_id, char channel, int force)
{
struct ahc_tmode_tstate *tstate;
/*
* Don't clean up our "master" tstate.
* It has our default user settings.
*/
if (((channel == 'B' && scsi_id == ahc->our_id_b)
|| (channel == 'A' && scsi_id == ahc->our_id))
&& force == FALSE)
return;
if (channel == 'B')
scsi_id += 8;
tstate = ahc->enabled_targets[scsi_id];
kfree(tstate);
ahc->enabled_targets[scsi_id] = NULL;
}
#endif
/*
* Called when we have an active connection to a target on the bus,
* this function finds the nearest syncrate to the input period limited
* by the capabilities of the bus connectivity of and sync settings for
* the target.
*/
static const struct ahc_syncrate *
ahc_devlimited_syncrate(struct ahc_softc *ahc,
struct ahc_initiator_tinfo *tinfo,
u_int *period, u_int *ppr_options, role_t role)
{
struct ahc_transinfo *transinfo;
u_int maxsync;
if ((ahc->features & AHC_ULTRA2) != 0) {
if ((ahc_inb(ahc, SBLKCTL) & ENAB40) != 0
&& (ahc_inb(ahc, SSTAT2) & EXP_ACTIVE) == 0) {
maxsync = AHC_SYNCRATE_DT;
} else {
maxsync = AHC_SYNCRATE_ULTRA;
/* Can't do DT on an SE bus */
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
}
} else if ((ahc->features & AHC_ULTRA) != 0) {
maxsync = AHC_SYNCRATE_ULTRA;
} else {
maxsync = AHC_SYNCRATE_FAST;
}
/*
* Never allow a value higher than our current goal
* period otherwise we may allow a target initiated
* negotiation to go above the limit as set by the
* user. In the case of an initiator initiated
* sync negotiation, we limit based on the user
* setting. This allows the system to still accept
* incoming negotiations even if target initiated
* negotiation is not performed.
*/
if (role == ROLE_TARGET)
transinfo = &tinfo->user;
else
transinfo = &tinfo->goal;
*ppr_options &= transinfo->ppr_options;
if (transinfo->width == MSG_EXT_WDTR_BUS_8_BIT) {
maxsync = max(maxsync, (u_int)AHC_SYNCRATE_ULTRA2);
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
}
if (transinfo->period == 0) {
*period = 0;
*ppr_options = 0;
return (NULL);
}
*period = max(*period, (u_int)transinfo->period);
return (ahc_find_syncrate(ahc, period, ppr_options, maxsync));
}
/*
* Look up the valid period to SCSIRATE conversion in our table.
* Return the period and offset that should be sent to the target
* if this was the beginning of an SDTR.
*/
const struct ahc_syncrate *
ahc_find_syncrate(struct ahc_softc *ahc, u_int *period,
u_int *ppr_options, u_int maxsync)
{
const struct ahc_syncrate *syncrate;
if ((ahc->features & AHC_DT) == 0)
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
/* Skip all DT only entries if DT is not available */
if ((*ppr_options & MSG_EXT_PPR_DT_REQ) == 0
&& maxsync < AHC_SYNCRATE_ULTRA2)
maxsync = AHC_SYNCRATE_ULTRA2;
/* Now set the maxsync based on the card capabilities
* DT is already done above */
if ((ahc->features & (AHC_DT | AHC_ULTRA2)) == 0
&& maxsync < AHC_SYNCRATE_ULTRA)
maxsync = AHC_SYNCRATE_ULTRA;
if ((ahc->features & (AHC_DT | AHC_ULTRA2 | AHC_ULTRA)) == 0
&& maxsync < AHC_SYNCRATE_FAST)
maxsync = AHC_SYNCRATE_FAST;
for (syncrate = &ahc_syncrates[maxsync];
syncrate->rate != NULL;
syncrate++) {
/*
* The Ultra2 table doesn't go as low
* as for the Fast/Ultra cards.
*/
if ((ahc->features & AHC_ULTRA2) != 0
&& (syncrate->sxfr_u2 == 0))
break;
if (*period <= syncrate->period) {
/*
* When responding to a target that requests
* sync, the requested rate may fall between
* two rates that we can output, but still be
* a rate that we can receive. Because of this,
* we want to respond to the target with
* the same rate that it sent to us even
* if the period we use to send data to it
* is lower. Only lower the response period
* if we must.
*/
if (syncrate == &ahc_syncrates[maxsync])
*period = syncrate->period;
/*
* At some speeds, we only support
* ST transfers.
*/
if ((syncrate->sxfr_u2 & ST_SXFR) != 0)
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
break;
}
}
if ((*period == 0)
|| (syncrate->rate == NULL)
|| ((ahc->features & AHC_ULTRA2) != 0
&& (syncrate->sxfr_u2 == 0))) {
/* Use asynchronous transfers. */
*period = 0;
syncrate = NULL;
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
}
return (syncrate);
}
/*
* Convert from an entry in our syncrate table to the SCSI equivalent
* sync "period" factor.
*/
u_int
ahc_find_period(struct ahc_softc *ahc, u_int scsirate, u_int maxsync)
{
const struct ahc_syncrate *syncrate;
if ((ahc->features & AHC_ULTRA2) != 0)
scsirate &= SXFR_ULTRA2;
else
scsirate &= SXFR;
/* now set maxsync based on card capabilities */
if ((ahc->features & AHC_DT) == 0 && maxsync < AHC_SYNCRATE_ULTRA2)
maxsync = AHC_SYNCRATE_ULTRA2;
if ((ahc->features & (AHC_DT | AHC_ULTRA2)) == 0
&& maxsync < AHC_SYNCRATE_ULTRA)
maxsync = AHC_SYNCRATE_ULTRA;
if ((ahc->features & (AHC_DT | AHC_ULTRA2 | AHC_ULTRA)) == 0
&& maxsync < AHC_SYNCRATE_FAST)
maxsync = AHC_SYNCRATE_FAST;
syncrate = &ahc_syncrates[maxsync];
while (syncrate->rate != NULL) {
if ((ahc->features & AHC_ULTRA2) != 0) {
if (syncrate->sxfr_u2 == 0)
break;
else if (scsirate == (syncrate->sxfr_u2 & SXFR_ULTRA2))
return (syncrate->period);
} else if (scsirate == (syncrate->sxfr & SXFR)) {
return (syncrate->period);
}
syncrate++;
}
return (0); /* async */
}
/*
* Truncate the given synchronous offset to a value the
* current adapter type and syncrate are capable of.
*/
static void
ahc_validate_offset(struct ahc_softc *ahc,
struct ahc_initiator_tinfo *tinfo,
const struct ahc_syncrate *syncrate,
u_int *offset, int wide, role_t role)
{
u_int maxoffset;
/* Limit offset to what we can do */
if (syncrate == NULL) {
maxoffset = 0;
} else if ((ahc->features & AHC_ULTRA2) != 0) {
maxoffset = MAX_OFFSET_ULTRA2;
} else {
if (wide)
maxoffset = MAX_OFFSET_16BIT;
else
maxoffset = MAX_OFFSET_8BIT;
}
*offset = min(*offset, maxoffset);
if (tinfo != NULL) {
if (role == ROLE_TARGET)
*offset = min(*offset, (u_int)tinfo->user.offset);
else
*offset = min(*offset, (u_int)tinfo->goal.offset);
}
}
/*
* Truncate the given transfer width parameter to a value the
* current adapter type is capable of.
*/
static void
ahc_validate_width(struct ahc_softc *ahc, struct ahc_initiator_tinfo *tinfo,
u_int *bus_width, role_t role)
{
switch (*bus_width) {
default:
if (ahc->features & AHC_WIDE) {
/* Respond Wide */
*bus_width = MSG_EXT_WDTR_BUS_16_BIT;
break;
}
fallthrough;
case MSG_EXT_WDTR_BUS_8_BIT:
*bus_width = MSG_EXT_WDTR_BUS_8_BIT;
break;
}
if (tinfo != NULL) {
if (role == ROLE_TARGET)
*bus_width = min((u_int)tinfo->user.width, *bus_width);
else
*bus_width = min((u_int)tinfo->goal.width, *bus_width);
}
}
/*
* Update the bitmask of targets for which the controller should
* negotiate with at the next convenient opportunity. This currently
* means the next time we send the initial identify messages for
* a new transaction.
*/
int
ahc_update_neg_request(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct ahc_tmode_tstate *tstate,
struct ahc_initiator_tinfo *tinfo, ahc_neg_type neg_type)
{
u_int auto_negotiate_orig;
auto_negotiate_orig = tstate->auto_negotiate;
if (neg_type == AHC_NEG_ALWAYS) {
/*
* Force our "current" settings to be
* unknown so that unless a bus reset
* occurs the need to renegotiate is
* recorded persistently.
*/
if ((ahc->features & AHC_WIDE) != 0)
tinfo->curr.width = AHC_WIDTH_UNKNOWN;
tinfo->curr.period = AHC_PERIOD_UNKNOWN;
tinfo->curr.offset = AHC_OFFSET_UNKNOWN;
}
if (tinfo->curr.period != tinfo->goal.period
|| tinfo->curr.width != tinfo->goal.width
|| tinfo->curr.offset != tinfo->goal.offset
|| tinfo->curr.ppr_options != tinfo->goal.ppr_options
|| (neg_type == AHC_NEG_IF_NON_ASYNC
&& (tinfo->goal.offset != 0
|| tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT
|| tinfo->goal.ppr_options != 0)))
tstate->auto_negotiate |= devinfo->target_mask;
else
tstate->auto_negotiate &= ~devinfo->target_mask;
return (auto_negotiate_orig != tstate->auto_negotiate);
}
/*
* Update the user/goal/curr tables of synchronous negotiation
* parameters as well as, in the case of a current or active update,
* any data structures on the host controller. In the case of an
* active update, the specified target is currently talking to us on
* the bus, so the transfer parameter update must take effect
* immediately.
*/
void
ahc_set_syncrate(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
const struct ahc_syncrate *syncrate, u_int period,
u_int offset, u_int ppr_options, u_int type, int paused)
{
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
u_int old_period;
u_int old_offset;
u_int old_ppr;
int active;
int update_needed;
active = (type & AHC_TRANS_ACTIVE) == AHC_TRANS_ACTIVE;
update_needed = 0;
if (syncrate == NULL) {
period = 0;
offset = 0;
}
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
if ((type & AHC_TRANS_USER) != 0) {
tinfo->user.period = period;
tinfo->user.offset = offset;
tinfo->user.ppr_options = ppr_options;
}
if ((type & AHC_TRANS_GOAL) != 0) {
tinfo->goal.period = period;
tinfo->goal.offset = offset;
tinfo->goal.ppr_options = ppr_options;
}
old_period = tinfo->curr.period;
old_offset = tinfo->curr.offset;
old_ppr = tinfo->curr.ppr_options;
if ((type & AHC_TRANS_CUR) != 0
&& (old_period != period
|| old_offset != offset
|| old_ppr != ppr_options)) {
u_int scsirate;
update_needed++;
scsirate = tinfo->scsirate;
if ((ahc->features & AHC_ULTRA2) != 0) {
scsirate &= ~(SXFR_ULTRA2|SINGLE_EDGE|ENABLE_CRC);
if (syncrate != NULL) {
scsirate |= syncrate->sxfr_u2;
if ((ppr_options & MSG_EXT_PPR_DT_REQ) != 0)
scsirate |= ENABLE_CRC;
else
scsirate |= SINGLE_EDGE;
}
} else {
scsirate &= ~(SXFR|SOFS);
/*
* Ensure Ultra mode is set properly for
* this target.
*/
tstate->ultraenb &= ~devinfo->target_mask;
if (syncrate != NULL) {
if (syncrate->sxfr & ULTRA_SXFR) {
tstate->ultraenb |=
devinfo->target_mask;
}
scsirate |= syncrate->sxfr & SXFR;
scsirate |= offset & SOFS;
}
if (active) {
u_int sxfrctl0;
sxfrctl0 = ahc_inb(ahc, SXFRCTL0);
sxfrctl0 &= ~FAST20;
if (tstate->ultraenb & devinfo->target_mask)
sxfrctl0 |= FAST20;
ahc_outb(ahc, SXFRCTL0, sxfrctl0);
}
}
if (active) {
ahc_outb(ahc, SCSIRATE, scsirate);
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, SCSIOFFSET, offset);
}
tinfo->scsirate = scsirate;
tinfo->curr.period = period;
tinfo->curr.offset = offset;
tinfo->curr.ppr_options = ppr_options;
ahc_send_async(ahc, devinfo->channel, devinfo->target,
CAM_LUN_WILDCARD, AC_TRANSFER_NEG);
if (bootverbose) {
if (offset != 0) {
printk("%s: target %d synchronous at %sMHz%s, "
"offset = 0x%x\n", ahc_name(ahc),
devinfo->target, syncrate->rate,
(ppr_options & MSG_EXT_PPR_DT_REQ)
? " DT" : "", offset);
} else {
printk("%s: target %d using "
"asynchronous transfers\n",
ahc_name(ahc), devinfo->target);
}
}
}
update_needed += ahc_update_neg_request(ahc, devinfo, tstate,
tinfo, AHC_NEG_TO_GOAL);
if (update_needed)
ahc_update_pending_scbs(ahc);
}
/*
* Update the user/goal/curr tables of wide negotiation
* parameters as well as, in the case of a current or active update,
* any data structures on the host controller. In the case of an
* active update, the specified target is currently talking to us on
* the bus, so the transfer parameter update must take effect
* immediately.
*/
void
ahc_set_width(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
u_int width, u_int type, int paused)
{
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
u_int oldwidth;
int active;
int update_needed;
active = (type & AHC_TRANS_ACTIVE) == AHC_TRANS_ACTIVE;
update_needed = 0;
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
if ((type & AHC_TRANS_USER) != 0)
tinfo->user.width = width;
if ((type & AHC_TRANS_GOAL) != 0)
tinfo->goal.width = width;
oldwidth = tinfo->curr.width;
if ((type & AHC_TRANS_CUR) != 0 && oldwidth != width) {
u_int scsirate;
update_needed++;
scsirate = tinfo->scsirate;
scsirate &= ~WIDEXFER;
if (width == MSG_EXT_WDTR_BUS_16_BIT)
scsirate |= WIDEXFER;
tinfo->scsirate = scsirate;
if (active)
ahc_outb(ahc, SCSIRATE, scsirate);
tinfo->curr.width = width;
ahc_send_async(ahc, devinfo->channel, devinfo->target,
CAM_LUN_WILDCARD, AC_TRANSFER_NEG);
if (bootverbose) {
printk("%s: target %d using %dbit transfers\n",
ahc_name(ahc), devinfo->target,
8 * (0x01 << width));
}
}
update_needed += ahc_update_neg_request(ahc, devinfo, tstate,
tinfo, AHC_NEG_TO_GOAL);
if (update_needed)
ahc_update_pending_scbs(ahc);
}
/*
* Update the current state of tagged queuing for a given target.
*/
static void
ahc_set_tags(struct ahc_softc *ahc, struct scsi_cmnd *cmd,
struct ahc_devinfo *devinfo, ahc_queue_alg alg)
{
struct scsi_device *sdev = cmd->device;
ahc_platform_set_tags(ahc, sdev, devinfo, alg);
ahc_send_async(ahc, devinfo->channel, devinfo->target,
devinfo->lun, AC_TRANSFER_NEG);
}
/*
* When the transfer settings for a connection change, update any
* in-transit SCBs to contain the new data so the hardware will
* be set correctly during future (re)selections.
*/
static void
ahc_update_pending_scbs(struct ahc_softc *ahc)
{
struct scb *pending_scb;
int pending_scb_count;
int i;
int paused;
u_int saved_scbptr;
/*
* Traverse the pending SCB list and ensure that all of the
* SCBs there have the proper settings.
*/
pending_scb_count = 0;
LIST_FOREACH(pending_scb, &ahc->pending_scbs, pending_links) {
struct ahc_devinfo devinfo;
struct hardware_scb *pending_hscb;
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
ahc_scb_devinfo(ahc, &devinfo, pending_scb);
tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
devinfo.our_scsiid,
devinfo.target, &tstate);
pending_hscb = pending_scb->hscb;
pending_hscb->control &= ~ULTRAENB;
if ((tstate->ultraenb & devinfo.target_mask) != 0)
pending_hscb->control |= ULTRAENB;
pending_hscb->scsirate = tinfo->scsirate;
pending_hscb->scsioffset = tinfo->curr.offset;
if ((tstate->auto_negotiate & devinfo.target_mask) == 0
&& (pending_scb->flags & SCB_AUTO_NEGOTIATE) != 0) {
pending_scb->flags &= ~SCB_AUTO_NEGOTIATE;
pending_hscb->control &= ~MK_MESSAGE;
}
ahc_sync_scb(ahc, pending_scb,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
pending_scb_count++;
}
if (pending_scb_count == 0)
return;
if (ahc_is_paused(ahc)) {
paused = 1;
} else {
paused = 0;
ahc_pause(ahc);
}
saved_scbptr = ahc_inb(ahc, SCBPTR);
/* Ensure that the hscbs down on the card match the new information */
for (i = 0; i < ahc->scb_data->maxhscbs; i++) {
struct hardware_scb *pending_hscb;
u_int control;
u_int scb_tag;
ahc_outb(ahc, SCBPTR, i);
scb_tag = ahc_inb(ahc, SCB_TAG);
pending_scb = ahc_lookup_scb(ahc, scb_tag);
if (pending_scb == NULL)
continue;
pending_hscb = pending_scb->hscb;
control = ahc_inb(ahc, SCB_CONTROL);
control &= ~(ULTRAENB|MK_MESSAGE);
control |= pending_hscb->control & (ULTRAENB|MK_MESSAGE);
ahc_outb(ahc, SCB_CONTROL, control);
ahc_outb(ahc, SCB_SCSIRATE, pending_hscb->scsirate);
ahc_outb(ahc, SCB_SCSIOFFSET, pending_hscb->scsioffset);
}
ahc_outb(ahc, SCBPTR, saved_scbptr);
if (paused == 0)
ahc_unpause(ahc);
}
/**************************** Pathing Information *****************************/
static void
ahc_fetch_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
u_int saved_scsiid;
role_t role;
int our_id;
if (ahc_inb(ahc, SSTAT0) & TARGET)
role = ROLE_TARGET;
else
role = ROLE_INITIATOR;
if (role == ROLE_TARGET
&& (ahc->features & AHC_MULTI_TID) != 0
&& (ahc_inb(ahc, SEQ_FLAGS)
& (CMDPHASE_PENDING|TARG_CMD_PENDING|NO_DISCONNECT)) != 0) {
/* We were selected, so pull our id from TARGIDIN */
our_id = ahc_inb(ahc, TARGIDIN) & OID;
} else if ((ahc->features & AHC_ULTRA2) != 0)
our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
else
our_id = ahc_inb(ahc, SCSIID) & OID;
saved_scsiid = ahc_inb(ahc, SAVED_SCSIID);
ahc_compile_devinfo(devinfo,
our_id,
SCSIID_TARGET(ahc, saved_scsiid),
ahc_inb(ahc, SAVED_LUN),
SCSIID_CHANNEL(ahc, saved_scsiid),
role);
}
static const struct ahc_phase_table_entry*
ahc_lookup_phase_entry(int phase)
{
const struct ahc_phase_table_entry *entry;
const struct ahc_phase_table_entry *last_entry;
/*
* num_phases doesn't include the default entry which
* will be returned if the phase doesn't match.
*/
last_entry = &ahc_phase_table[num_phases];
for (entry = ahc_phase_table; entry < last_entry; entry++) {
if (phase == entry->phase)
break;
}
return (entry);
}
void
ahc_compile_devinfo(struct ahc_devinfo *devinfo, u_int our_id, u_int target,
u_int lun, char channel, role_t role)
{
devinfo->our_scsiid = our_id;
devinfo->target = target;
devinfo->lun = lun;
devinfo->target_offset = target;
devinfo->channel = channel;
devinfo->role = role;
if (channel == 'B')
devinfo->target_offset += 8;
devinfo->target_mask = (0x01 << devinfo->target_offset);
}
void
ahc_print_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
printk("%s:%c:%d:%d: ", ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun);
}
static void
ahc_scb_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct scb *scb)
{
role_t role;
int our_id;
our_id = SCSIID_OUR_ID(scb->hscb->scsiid);
role = ROLE_INITIATOR;
if ((scb->flags & SCB_TARGET_SCB) != 0)
role = ROLE_TARGET;
ahc_compile_devinfo(devinfo, our_id, SCB_GET_TARGET(ahc, scb),
SCB_GET_LUN(scb), SCB_GET_CHANNEL(ahc, scb), role);
}
/************************ Message Phase Processing ****************************/
static void
ahc_assert_atn(struct ahc_softc *ahc)
{
u_int scsisigo;
scsisigo = ATNO;
if ((ahc->features & AHC_DT) == 0)
scsisigo |= ahc_inb(ahc, SCSISIGI);
ahc_outb(ahc, SCSISIGO, scsisigo);
}
/*
* When an initiator transaction with the MK_MESSAGE flag either reconnects
* or enters the initial message out phase, we are interrupted. Fill our
* outgoing message buffer with the appropriate message and beging handing
* the message phase(s) manually.
*/
static void
ahc_setup_initiator_msgout(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct scb *scb)
{
/*
* To facilitate adding multiple messages together,
* each routine should increment the index and len
* variables instead of setting them explicitly.
*/
ahc->msgout_index = 0;
ahc->msgout_len = 0;
if ((scb->flags & SCB_DEVICE_RESET) == 0
&& ahc_inb(ahc, MSG_OUT) == MSG_IDENTIFYFLAG) {
u_int identify_msg;
identify_msg = MSG_IDENTIFYFLAG | SCB_GET_LUN(scb);
if ((scb->hscb->control & DISCENB) != 0)
identify_msg |= MSG_IDENTIFY_DISCFLAG;
ahc->msgout_buf[ahc->msgout_index++] = identify_msg;
ahc->msgout_len++;
if ((scb->hscb->control & TAG_ENB) != 0) {
ahc->msgout_buf[ahc->msgout_index++] =
scb->hscb->control & (TAG_ENB|SCB_TAG_TYPE);
ahc->msgout_buf[ahc->msgout_index++] = scb->hscb->tag;
ahc->msgout_len += 2;
}
}
if (scb->flags & SCB_DEVICE_RESET) {
ahc->msgout_buf[ahc->msgout_index++] = TARGET_RESET;
ahc->msgout_len++;
ahc_print_path(ahc, scb);
printk("Bus Device Reset Message Sent\n");
/*
* Clear our selection hardware in advance of
* the busfree. We may have an entry in the waiting
* Q for this target, and we don't want to go about
* selecting while we handle the busfree and blow it
* away.
*/
ahc_outb(ahc, SCSISEQ, (ahc_inb(ahc, SCSISEQ) & ~ENSELO));
} else if ((scb->flags & SCB_ABORT) != 0) {
if ((scb->hscb->control & TAG_ENB) != 0)
ahc->msgout_buf[ahc->msgout_index++] = ABORT_TASK;
else
ahc->msgout_buf[ahc->msgout_index++] = ABORT_TASK_SET;
ahc->msgout_len++;
ahc_print_path(ahc, scb);
printk("Abort%s Message Sent\n",
(scb->hscb->control & TAG_ENB) != 0 ? " Tag" : "");
/*
* Clear our selection hardware in advance of
* the busfree. We may have an entry in the waiting
* Q for this target, and we don't want to go about
* selecting while we handle the busfree and blow it
* away.
*/
ahc_outb(ahc, SCSISEQ, (ahc_inb(ahc, SCSISEQ) & ~ENSELO));
} else if ((scb->flags & (SCB_AUTO_NEGOTIATE|SCB_NEGOTIATE)) != 0) {
ahc_build_transfer_msg(ahc, devinfo);
} else {
printk("ahc_intr: AWAITING_MSG for an SCB that "
"does not have a waiting message\n");
printk("SCSIID = %x, target_mask = %x\n", scb->hscb->scsiid,
devinfo->target_mask);
panic("SCB = %d, SCB Control = %x, MSG_OUT = %x "
"SCB flags = %x", scb->hscb->tag, scb->hscb->control,
ahc_inb(ahc, MSG_OUT), scb->flags);
}
/*
* Clear the MK_MESSAGE flag from the SCB so we aren't
* asked to send this message again.
*/
ahc_outb(ahc, SCB_CONTROL, ahc_inb(ahc, SCB_CONTROL) & ~MK_MESSAGE);
scb->hscb->control &= ~MK_MESSAGE;
ahc->msgout_index = 0;
ahc->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
}
/*
* Build an appropriate transfer negotiation message for the
* currently active target.
*/
static void
ahc_build_transfer_msg(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
/*
* We need to initiate transfer negotiations.
* If our current and goal settings are identical,
* we want to renegotiate due to a check condition.
*/
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
const struct ahc_syncrate *rate;
int dowide;
int dosync;
int doppr;
u_int period;
u_int ppr_options;
u_int offset;
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
/*
* Filter our period based on the current connection.
* If we can't perform DT transfers on this segment (not in LVD
* mode for instance), then our decision to issue a PPR message
* may change.
*/
period = tinfo->goal.period;
offset = tinfo->goal.offset;
ppr_options = tinfo->goal.ppr_options;
/* Target initiated PPR is not allowed in the SCSI spec */
if (devinfo->role == ROLE_TARGET)
ppr_options = 0;
rate = ahc_devlimited_syncrate(ahc, tinfo, &period,
&ppr_options, devinfo->role);
dowide = tinfo->curr.width != tinfo->goal.width;
dosync = tinfo->curr.offset != offset || tinfo->curr.period != period;
/*
* Only use PPR if we have options that need it, even if the device
* claims to support it. There might be an expander in the way
* that doesn't.
*/
doppr = ppr_options != 0;
if (!dowide && !dosync && !doppr) {
dowide = tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT;
dosync = tinfo->goal.offset != 0;
}
if (!dowide && !dosync && !doppr) {
/*
* Force async with a WDTR message if we have a wide bus,
* or just issue an SDTR with a 0 offset.
*/
if ((ahc->features & AHC_WIDE) != 0)
dowide = 1;
else
dosync = 1;
if (bootverbose) {
ahc_print_devinfo(ahc, devinfo);
printk("Ensuring async\n");
}
}
/* Target initiated PPR is not allowed in the SCSI spec */
if (devinfo->role == ROLE_TARGET)
doppr = 0;
/*
* Both the PPR message and SDTR message require the
* goal syncrate to be limited to what the target device
* is capable of handling (based on whether an LVD->SE
* expander is on the bus), so combine these two cases.
* Regardless, guarantee that if we are using WDTR and SDTR
* messages that WDTR comes first.
*/
if (doppr || (dosync && !dowide)) {
offset = tinfo->goal.offset;
ahc_validate_offset(ahc, tinfo, rate, &offset,
doppr ? tinfo->goal.width
: tinfo->curr.width,
devinfo->role);
if (doppr) {
ahc_construct_ppr(ahc, devinfo, period, offset,
tinfo->goal.width, ppr_options);
} else {
ahc_construct_sdtr(ahc, devinfo, period, offset);
}
} else {
ahc_construct_wdtr(ahc, devinfo, tinfo->goal.width);
}
}
/*
* Build a synchronous negotiation message in our message
* buffer based on the input parameters.
*/
static void
ahc_construct_sdtr(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
u_int period, u_int offset)
{
if (offset == 0)
period = AHC_ASYNC_XFER_PERIOD;
ahc->msgout_index += spi_populate_sync_msg(
ahc->msgout_buf + ahc->msgout_index, period, offset);
ahc->msgout_len += 5;
if (bootverbose) {
printk("(%s:%c:%d:%d): Sending SDTR period %x, offset %x\n",
ahc_name(ahc), devinfo->channel, devinfo->target,
devinfo->lun, period, offset);
}
}
/*
* Build a wide negotiation message in our message
* buffer based on the input parameters.
*/
static void
ahc_construct_wdtr(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
u_int bus_width)
{
ahc->msgout_index += spi_populate_width_msg(
ahc->msgout_buf + ahc->msgout_index, bus_width);
ahc->msgout_len += 4;
if (bootverbose) {
printk("(%s:%c:%d:%d): Sending WDTR %x\n",
ahc_name(ahc), devinfo->channel, devinfo->target,
devinfo->lun, bus_width);
}
}
/*
* Build a parallel protocol request message in our message
* buffer based on the input parameters.
*/
static void
ahc_construct_ppr(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
u_int period, u_int offset, u_int bus_width,
u_int ppr_options)
{
if (offset == 0)
period = AHC_ASYNC_XFER_PERIOD;
ahc->msgout_index += spi_populate_ppr_msg(
ahc->msgout_buf + ahc->msgout_index, period, offset,
bus_width, ppr_options);
ahc->msgout_len += 8;
if (bootverbose) {
printk("(%s:%c:%d:%d): Sending PPR bus_width %x, period %x, "
"offset %x, ppr_options %x\n", ahc_name(ahc),
devinfo->channel, devinfo->target, devinfo->lun,
bus_width, period, offset, ppr_options);
}
}
/*
* Clear any active message state.
*/
static void
ahc_clear_msg_state(struct ahc_softc *ahc)
{
ahc->msgout_len = 0;
ahc->msgin_index = 0;
ahc->msg_type = MSG_TYPE_NONE;
if ((ahc_inb(ahc, SCSISIGI) & ATNI) != 0) {
/*
* The target didn't care to respond to our
* message request, so clear ATN.
*/
ahc_outb(ahc, CLRSINT1, CLRATNO);
}
ahc_outb(ahc, MSG_OUT, NOP);
ahc_outb(ahc, SEQ_FLAGS2,
ahc_inb(ahc, SEQ_FLAGS2) & ~TARGET_MSG_PENDING);
}
static void
ahc_handle_proto_violation(struct ahc_softc *ahc)
{
struct ahc_devinfo devinfo;
struct scb *scb;
u_int scbid;
u_int seq_flags;
u_int curphase;
u_int lastphase;
int found;
ahc_fetch_devinfo(ahc, &devinfo);
scbid = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scbid);
seq_flags = ahc_inb(ahc, SEQ_FLAGS);
curphase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
lastphase = ahc_inb(ahc, LASTPHASE);
if ((seq_flags & NOT_IDENTIFIED) != 0) {
/*
* The reconnecting target either did not send an
* identify message, or did, but we didn't find an SCB
* to match.
*/
ahc_print_devinfo(ahc, &devinfo);
printk("Target did not send an IDENTIFY message. "
"LASTPHASE = 0x%x.\n", lastphase);
scb = NULL;
} else if (scb == NULL) {
/*
* We don't seem to have an SCB active for this
* transaction. Print an error and reset the bus.
*/
ahc_print_devinfo(ahc, &devinfo);
printk("No SCB found during protocol violation\n");
goto proto_violation_reset;
} else {
ahc_set_transaction_status(scb, CAM_SEQUENCE_FAIL);
if ((seq_flags & NO_CDB_SENT) != 0) {
ahc_print_path(ahc, scb);
printk("No or incomplete CDB sent to device.\n");
} else if ((ahc_inb(ahc, SCB_CONTROL) & STATUS_RCVD) == 0) {
/*
* The target never bothered to provide status to
* us prior to completing the command. Since we don't
* know the disposition of this command, we must attempt
* to abort it. Assert ATN and prepare to send an abort
* message.
*/
ahc_print_path(ahc, scb);
printk("Completed command without status.\n");
} else {
ahc_print_path(ahc, scb);
printk("Unknown protocol violation.\n");
ahc_dump_card_state(ahc);
}
}
if ((lastphase & ~P_DATAIN_DT) == 0
|| lastphase == P_COMMAND) {
proto_violation_reset:
/*
* Target either went directly to data/command
* phase or didn't respond to our ATN.
* The only safe thing to do is to blow
* it away with a bus reset.
*/
found = ahc_reset_channel(ahc, 'A', TRUE);
printk("%s: Issued Channel %c Bus Reset. "
"%d SCBs aborted\n", ahc_name(ahc), 'A', found);
} else {
/*
* Leave the selection hardware off in case
* this abort attempt will affect yet to
* be sent commands.
*/
ahc_outb(ahc, SCSISEQ,
ahc_inb(ahc, SCSISEQ) & ~ENSELO);
ahc_assert_atn(ahc);
ahc_outb(ahc, MSG_OUT, HOST_MSG);
if (scb == NULL) {
ahc_print_devinfo(ahc, &devinfo);
ahc->msgout_buf[0] = ABORT_TASK;
ahc->msgout_len = 1;
ahc->msgout_index = 0;
ahc->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
} else {
ahc_print_path(ahc, scb);
scb->flags |= SCB_ABORT;
}
printk("Protocol violation %s. Attempting to abort.\n",
ahc_lookup_phase_entry(curphase)->phasemsg);
}
}
/*
* Manual message loop handler.
*/
static void
ahc_handle_message_phase(struct ahc_softc *ahc)
{
struct ahc_devinfo devinfo;
u_int bus_phase;
int end_session;
ahc_fetch_devinfo(ahc, &devinfo);
end_session = FALSE;
bus_phase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
reswitch:
switch (ahc->msg_type) {
case MSG_TYPE_INITIATOR_MSGOUT:
{
int lastbyte;
int phasemis;
int msgdone;
if (ahc->msgout_len == 0)
panic("HOST_MSG_LOOP interrupt with no active message");
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MESSAGES) != 0) {
ahc_print_devinfo(ahc, &devinfo);
printk("INITIATOR_MSG_OUT");
}
#endif
phasemis = bus_phase != P_MESGOUT;
if (phasemis) {
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MESSAGES) != 0) {
printk(" PHASEMIS %s\n",
ahc_lookup_phase_entry(bus_phase)
->phasemsg);
}
#endif
if (bus_phase == P_MESGIN) {
/*
* Change gears and see if
* this messages is of interest to
* us or should be passed back to
* the sequencer.
*/
ahc_outb(ahc, CLRSINT1, CLRATNO);
ahc->send_msg_perror = FALSE;
ahc->msg_type = MSG_TYPE_INITIATOR_MSGIN;
ahc->msgin_index = 0;
goto reswitch;
}
end_session = TRUE;
break;
}
if (ahc->send_msg_perror) {
ahc_outb(ahc, CLRSINT1, CLRATNO);
ahc_outb(ahc, CLRSINT1, CLRREQINIT);
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MESSAGES) != 0)
printk(" byte 0x%x\n", ahc->send_msg_perror);
#endif
ahc_outb(ahc, SCSIDATL, MSG_PARITY_ERROR);
break;
}
msgdone = ahc->msgout_index == ahc->msgout_len;
if (msgdone) {
/*
* The target has requested a retry.
* Re-assert ATN, reset our message index to
* 0, and try again.
*/
ahc->msgout_index = 0;
ahc_assert_atn(ahc);
}
lastbyte = ahc->msgout_index == (ahc->msgout_len - 1);
if (lastbyte) {
/* Last byte is signified by dropping ATN */
ahc_outb(ahc, CLRSINT1, CLRATNO);
}
/*
* Clear our interrupt status and present
* the next byte on the bus.
*/
ahc_outb(ahc, CLRSINT1, CLRREQINIT);
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MESSAGES) != 0)
printk(" byte 0x%x\n",
ahc->msgout_buf[ahc->msgout_index]);
#endif
ahc_outb(ahc, SCSIDATL, ahc->msgout_buf[ahc->msgout_index++]);
break;
}
case MSG_TYPE_INITIATOR_MSGIN:
{
int phasemis;
int message_done;
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MESSAGES) != 0) {
ahc_print_devinfo(ahc, &devinfo);
printk("INITIATOR_MSG_IN");
}
#endif
phasemis = bus_phase != P_MESGIN;
if (phasemis) {
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MESSAGES) != 0) {
printk(" PHASEMIS %s\n",
ahc_lookup_phase_entry(bus_phase)
->phasemsg);
}
#endif
ahc->msgin_index = 0;
if (bus_phase == P_MESGOUT
&& (ahc->send_msg_perror == TRUE
|| (ahc->msgout_len != 0
&& ahc->msgout_index == 0))) {
ahc->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
goto reswitch;
}
end_session = TRUE;
break;
}
/* Pull the byte in without acking it */
ahc->msgin_buf[ahc->msgin_index] = ahc_inb(ahc, SCSIBUSL);
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MESSAGES) != 0)
printk(" byte 0x%x\n",
ahc->msgin_buf[ahc->msgin_index]);
#endif
message_done = ahc_parse_msg(ahc, &devinfo);
if (message_done) {
/*
* Clear our incoming message buffer in case there
* is another message following this one.
*/
ahc->msgin_index = 0;
/*
* If this message illicited a response,
* assert ATN so the target takes us to the
* message out phase.
*/
if (ahc->msgout_len != 0) {
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MESSAGES) != 0) {
ahc_print_devinfo(ahc, &devinfo);
printk("Asserting ATN for response\n");
}
#endif
ahc_assert_atn(ahc);
}
} else
ahc->msgin_index++;
if (message_done == MSGLOOP_TERMINATED) {
end_session = TRUE;
} else {
/* Ack the byte */
ahc_outb(ahc, CLRSINT1, CLRREQINIT);
ahc_inb(ahc, SCSIDATL);
}
break;
}
case MSG_TYPE_TARGET_MSGIN:
{
int msgdone;
int msgout_request;
if (ahc->msgout_len == 0)
panic("Target MSGIN with no active message");
/*
* If we interrupted a mesgout session, the initiator
* will not know this until our first REQ. So, we
* only honor mesgout requests after we've sent our
* first byte.
*/
if ((ahc_inb(ahc, SCSISIGI) & ATNI) != 0
&& ahc->msgout_index > 0)
msgout_request = TRUE;
else
msgout_request = FALSE;
if (msgout_request) {
/*
* Change gears and see if
* this messages is of interest to
* us or should be passed back to
* the sequencer.
*/
ahc->msg_type = MSG_TYPE_TARGET_MSGOUT;
ahc_outb(ahc, SCSISIGO, P_MESGOUT | BSYO);
ahc->msgin_index = 0;
/* Dummy read to REQ for first byte */
ahc_inb(ahc, SCSIDATL);
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | SPIOEN);
break;
}
msgdone = ahc->msgout_index == ahc->msgout_len;
if (msgdone) {
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) & ~SPIOEN);
end_session = TRUE;
break;
}
/*
* Present the next byte on the bus.
*/
ahc_outb(ahc, SXFRCTL0, ahc_inb(ahc, SXFRCTL0) | SPIOEN);
ahc_outb(ahc, SCSIDATL, ahc->msgout_buf[ahc->msgout_index++]);
break;
}
case MSG_TYPE_TARGET_MSGOUT:
{
int lastbyte;
int msgdone;
/*
* The initiator signals that this is
* the last byte by dropping ATN.
*/
lastbyte = (ahc_inb(ahc, SCSISIGI) & ATNI) == 0;
/*
* Read the latched byte, but turn off SPIOEN first
* so that we don't inadvertently cause a REQ for the
* next byte.
*/
ahc_outb(ahc, SXFRCTL0, ahc_inb(ahc, SXFRCTL0) & ~SPIOEN);
ahc->msgin_buf[ahc->msgin_index] = ahc_inb(ahc, SCSIDATL);
msgdone = ahc_parse_msg(ahc, &devinfo);
if (msgdone == MSGLOOP_TERMINATED) {
/*
* The message is *really* done in that it caused
* us to go to bus free. The sequencer has already
* been reset at this point, so pull the ejection
* handle.
*/
return;
}
ahc->msgin_index++;
/*
* XXX Read spec about initiator dropping ATN too soon
* and use msgdone to detect it.
*/
if (msgdone == MSGLOOP_MSGCOMPLETE) {
ahc->msgin_index = 0;
/*
* If this message illicited a response, transition
* to the Message in phase and send it.
*/
if (ahc->msgout_len != 0) {
ahc_outb(ahc, SCSISIGO, P_MESGIN | BSYO);
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | SPIOEN);
ahc->msg_type = MSG_TYPE_TARGET_MSGIN;
ahc->msgin_index = 0;
break;
}
}
if (lastbyte)
end_session = TRUE;
else {
/* Ask for the next byte. */
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | SPIOEN);
}
break;
}
default:
panic("Unknown REQINIT message type");
}
if (end_session) {
ahc_clear_msg_state(ahc);
ahc_outb(ahc, RETURN_1, EXIT_MSG_LOOP);
} else
ahc_outb(ahc, RETURN_1, CONT_MSG_LOOP);
}
/*
* See if we sent a particular extended message to the target.
* If "full" is true, return true only if the target saw the full
* message. If "full" is false, return true if the target saw at
* least the first byte of the message.
*/
static int
ahc_sent_msg(struct ahc_softc *ahc, ahc_msgtype type, u_int msgval, int full)
{
int found;
u_int index;
found = FALSE;
index = 0;
while (index < ahc->msgout_len) {
if (ahc->msgout_buf[index] == EXTENDED_MESSAGE) {
u_int end_index;
end_index = index + 1 + ahc->msgout_buf[index + 1];
if (ahc->msgout_buf[index+2] == msgval
&& type == AHCMSG_EXT) {
if (full) {
if (ahc->msgout_index > end_index)
found = TRUE;
} else if (ahc->msgout_index > index)
found = TRUE;
}
index = end_index;
} else if (ahc->msgout_buf[index] >= SIMPLE_QUEUE_TAG
&& ahc->msgout_buf[index] <= IGNORE_WIDE_RESIDUE) {
/* Skip tag type and tag id or residue param*/
index += 2;
} else {
/* Single byte message */
if (type == AHCMSG_1B
&& ahc->msgout_buf[index] == msgval
&& ahc->msgout_index > index)
found = TRUE;
index++;
}
if (found)
break;
}
return (found);
}
/*
* Wait for a complete incoming message, parse it, and respond accordingly.
*/
static int
ahc_parse_msg(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
int reject;
int done;
int response;
u_int targ_scsirate;
done = MSGLOOP_IN_PROG;
response = FALSE;
reject = FALSE;
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
targ_scsirate = tinfo->scsirate;
/*
* Parse as much of the message as is available,
* rejecting it if we don't support it. When
* the entire message is available and has been
* handled, return MSGLOOP_MSGCOMPLETE, indicating
* that we have parsed an entire message.
*
* In the case of extended messages, we accept the length
* byte outright and perform more checking once we know the
* extended message type.
*/
switch (ahc->msgin_buf[0]) {
case DISCONNECT:
case SAVE_POINTERS:
case COMMAND_COMPLETE:
case RESTORE_POINTERS:
case IGNORE_WIDE_RESIDUE:
/*
* End our message loop as these are messages
* the sequencer handles on its own.
*/
done = MSGLOOP_TERMINATED;
break;
case MESSAGE_REJECT:
response = ahc_handle_msg_reject(ahc, devinfo);
fallthrough;
case NOP:
done = MSGLOOP_MSGCOMPLETE;
break;
case EXTENDED_MESSAGE:
{
/* Wait for enough of the message to begin validation */
if (ahc->msgin_index < 2)
break;
switch (ahc->msgin_buf[2]) {
case EXTENDED_SDTR:
{
const struct ahc_syncrate *syncrate;
u_int period;
u_int ppr_options;
u_int offset;
u_int saved_offset;
if (ahc->msgin_buf[1] != MSG_EXT_SDTR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have both args before validating
* and acting on this message.
*
* Add one to MSG_EXT_SDTR_LEN to account for
* the extended message preamble.
*/
if (ahc->msgin_index < (MSG_EXT_SDTR_LEN + 1))
break;
period = ahc->msgin_buf[3];
ppr_options = 0;
saved_offset = offset = ahc->msgin_buf[4];
syncrate = ahc_devlimited_syncrate(ahc, tinfo, &period,
&ppr_options,
devinfo->role);
ahc_validate_offset(ahc, tinfo, syncrate, &offset,
targ_scsirate & WIDEXFER,
devinfo->role);
if (bootverbose) {
printk("(%s:%c:%d:%d): Received "
"SDTR period %x, offset %x\n\t"
"Filtered to period %x, offset %x\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun,
ahc->msgin_buf[3], saved_offset,
period, offset);
}
ahc_set_syncrate(ahc, devinfo,
syncrate, period,
offset, ppr_options,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
/*
* See if we initiated Sync Negotiation
* and didn't have to fall down to async
* transfers.
*/
if (ahc_sent_msg(ahc, AHCMSG_EXT, EXTENDED_SDTR, TRUE)) {
/* We started it */
if (saved_offset != offset) {
/* Went too low - force async */
reject = TRUE;
}
} else {
/*
* Send our own SDTR in reply
*/
if (bootverbose
&& devinfo->role == ROLE_INITIATOR) {
printk("(%s:%c:%d:%d): Target "
"Initiated SDTR\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun);
}
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_construct_sdtr(ahc, devinfo,
period, offset);
ahc->msgout_index = 0;
response = TRUE;
}
done = MSGLOOP_MSGCOMPLETE;
break;
}
case EXTENDED_WDTR:
{
u_int bus_width;
u_int saved_width;
u_int sending_reply;
sending_reply = FALSE;
if (ahc->msgin_buf[1] != MSG_EXT_WDTR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have our arg before validating
* and acting on this message.
*
* Add one to MSG_EXT_WDTR_LEN to account for
* the extended message preamble.
*/
if (ahc->msgin_index < (MSG_EXT_WDTR_LEN + 1))
break;
bus_width = ahc->msgin_buf[3];
saved_width = bus_width;
ahc_validate_width(ahc, tinfo, &bus_width,
devinfo->role);
if (bootverbose) {
printk("(%s:%c:%d:%d): Received WDTR "
"%x filtered to %x\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun,
saved_width, bus_width);
}
if (ahc_sent_msg(ahc, AHCMSG_EXT, EXTENDED_WDTR, TRUE)) {
/*
* Don't send a WDTR back to the
* target, since we asked first.
* If the width went higher than our
* request, reject it.
*/
if (saved_width > bus_width) {
reject = TRUE;
printk("(%s:%c:%d:%d): requested %dBit "
"transfers. Rejecting...\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun,
8 * (0x01 << bus_width));
bus_width = 0;
}
} else {
/*
* Send our own WDTR in reply
*/
if (bootverbose
&& devinfo->role == ROLE_INITIATOR) {
printk("(%s:%c:%d:%d): Target "
"Initiated WDTR\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun);
}
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_construct_wdtr(ahc, devinfo, bus_width);
ahc->msgout_index = 0;
response = TRUE;
sending_reply = TRUE;
}
/*
* After a wide message, we are async, but
* some devices don't seem to honor this portion
* of the spec. Force a renegotiation of the
* sync component of our transfer agreement even
* if our goal is async. By updating our width
* after forcing the negotiation, we avoid
* renegotiating for width.
*/
ahc_update_neg_request(ahc, devinfo, tstate,
tinfo, AHC_NEG_ALWAYS);
ahc_set_width(ahc, devinfo, bus_width,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
if (sending_reply == FALSE && reject == FALSE) {
/*
* We will always have an SDTR to send.
*/
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_build_transfer_msg(ahc, devinfo);
ahc->msgout_index = 0;
response = TRUE;
}
done = MSGLOOP_MSGCOMPLETE;
break;
}
case EXTENDED_PPR:
{
const struct ahc_syncrate *syncrate;
u_int period;
u_int offset;
u_int bus_width;
u_int ppr_options;
u_int saved_width;
u_int saved_offset;
u_int saved_ppr_options;
if (ahc->msgin_buf[1] != MSG_EXT_PPR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have all args before validating
* and acting on this message.
*
* Add one to MSG_EXT_PPR_LEN to account for
* the extended message preamble.
*/
if (ahc->msgin_index < (MSG_EXT_PPR_LEN + 1))
break;
period = ahc->msgin_buf[3];
offset = ahc->msgin_buf[5];
bus_width = ahc->msgin_buf[6];
saved_width = bus_width;
ppr_options = ahc->msgin_buf[7];
/*
* According to the spec, a DT only
* period factor with no DT option
* set implies async.
*/
if ((ppr_options & MSG_EXT_PPR_DT_REQ) == 0
&& period == 9)
offset = 0;
saved_ppr_options = ppr_options;
saved_offset = offset;
/*
* Mask out any options we don't support
* on any controller. Transfer options are
* only available if we are negotiating wide.
*/
ppr_options &= MSG_EXT_PPR_DT_REQ;
if (bus_width == 0)
ppr_options = 0;
ahc_validate_width(ahc, tinfo, &bus_width,
devinfo->role);
syncrate = ahc_devlimited_syncrate(ahc, tinfo, &period,
&ppr_options,
devinfo->role);
ahc_validate_offset(ahc, tinfo, syncrate,
&offset, bus_width,
devinfo->role);
if (ahc_sent_msg(ahc, AHCMSG_EXT, EXTENDED_PPR, TRUE)) {
/*
* If we are unable to do any of the
* requested options (we went too low),
* then we'll have to reject the message.
*/
if (saved_width > bus_width
|| saved_offset != offset
|| saved_ppr_options != ppr_options) {
reject = TRUE;
period = 0;
offset = 0;
bus_width = 0;
ppr_options = 0;
syncrate = NULL;
}
} else {
if (devinfo->role != ROLE_TARGET)
printk("(%s:%c:%d:%d): Target "
"Initiated PPR\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun);
else
printk("(%s:%c:%d:%d): Initiator "
"Initiated PPR\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun);
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_construct_ppr(ahc, devinfo, period, offset,
bus_width, ppr_options);
ahc->msgout_index = 0;
response = TRUE;
}
if (bootverbose) {
printk("(%s:%c:%d:%d): Received PPR width %x, "
"period %x, offset %x,options %x\n"
"\tFiltered to width %x, period %x, "
"offset %x, options %x\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun,
saved_width, ahc->msgin_buf[3],
saved_offset, saved_ppr_options,
bus_width, period, offset, ppr_options);
}
ahc_set_width(ahc, devinfo, bus_width,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
ahc_set_syncrate(ahc, devinfo,
syncrate, period,
offset, ppr_options,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
done = MSGLOOP_MSGCOMPLETE;
break;
}
default:
/* Unknown extended message. Reject it. */
reject = TRUE;
break;
}
break;
}
#ifdef AHC_TARGET_MODE
case TARGET_RESET:
ahc_handle_devreset(ahc, devinfo,
CAM_BDR_SENT,
"Bus Device Reset Received",
/*verbose_level*/0);
ahc_restart(ahc);
done = MSGLOOP_TERMINATED;
break;
case ABORT_TASK:
case ABORT_TASK_SET:
case CLEAR_QUEUE_TASK_SET:
{
int tag;
/* Target mode messages */
if (devinfo->role != ROLE_TARGET) {
reject = TRUE;
break;
}
tag = SCB_LIST_NULL;
if (ahc->msgin_buf[0] == ABORT_TASK)
tag = ahc_inb(ahc, INITIATOR_TAG);
ahc_abort_scbs(ahc, devinfo->target, devinfo->channel,
devinfo->lun, tag, ROLE_TARGET,
CAM_REQ_ABORTED);
tstate = ahc->enabled_targets[devinfo->our_scsiid];
if (tstate != NULL) {
struct ahc_tmode_lstate* lstate;
lstate = tstate->enabled_luns[devinfo->lun];
if (lstate != NULL) {
ahc_queue_lstate_event(ahc, lstate,
devinfo->our_scsiid,
ahc->msgin_buf[0],
/*arg*/tag);
ahc_send_lstate_events(ahc, lstate);
}
}
ahc_restart(ahc);
done = MSGLOOP_TERMINATED;
break;
}
#endif
case TERMINATE_IO_PROC:
default:
reject = TRUE;
break;
}
if (reject) {
/*
* Setup to reject the message.
*/
ahc->msgout_index = 0;
ahc->msgout_len = 1;
ahc->msgout_buf[0] = MESSAGE_REJECT;
done = MSGLOOP_MSGCOMPLETE;
response = TRUE;
}
if (done != MSGLOOP_IN_PROG && !response)
/* Clear the outgoing message buffer */
ahc->msgout_len = 0;
return (done);
}
/*
* Process a message reject message.
*/
static int
ahc_handle_msg_reject(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
/*
* What we care about here is if we had an
* outstanding SDTR or WDTR message for this
* target. If we did, this is a signal that
* the target is refusing negotiation.
*/
struct scb *scb;
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
u_int scb_index;
u_int last_msg;
int response = 0;
scb_index = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scb_index);
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel,
devinfo->our_scsiid,
devinfo->target, &tstate);
/* Might be necessary */
last_msg = ahc_inb(ahc, LAST_MSG);
if (ahc_sent_msg(ahc, AHCMSG_EXT, EXTENDED_PPR, /*full*/FALSE)) {
/*
* Target does not support the PPR message.
* Attempt to negotiate SPI-2 style.
*/
if (bootverbose) {
printk("(%s:%c:%d:%d): PPR Rejected. "
"Trying WDTR/SDTR\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun);
}
tinfo->goal.ppr_options = 0;
tinfo->curr.transport_version = 2;
tinfo->goal.transport_version = 2;
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_build_transfer_msg(ahc, devinfo);
ahc->msgout_index = 0;
response = 1;
} else if (ahc_sent_msg(ahc, AHCMSG_EXT, EXTENDED_WDTR, /*full*/FALSE)) {
/* note 8bit xfers */
printk("(%s:%c:%d:%d): refuses WIDE negotiation. Using "
"8bit transfers\n", ahc_name(ahc),
devinfo->channel, devinfo->target, devinfo->lun);
ahc_set_width(ahc, devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
/*
* No need to clear the sync rate. If the target
* did not accept the command, our syncrate is
* unaffected. If the target started the negotiation,
* but rejected our response, we already cleared the
* sync rate before sending our WDTR.
*/
if (tinfo->goal.offset != tinfo->curr.offset) {
/* Start the sync negotiation */
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_build_transfer_msg(ahc, devinfo);
ahc->msgout_index = 0;
response = 1;
}
} else if (ahc_sent_msg(ahc, AHCMSG_EXT, EXTENDED_SDTR, /*full*/FALSE)) {
/* note asynch xfers and clear flag */
ahc_set_syncrate(ahc, devinfo, /*syncrate*/NULL, /*period*/0,
/*offset*/0, /*ppr_options*/0,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
printk("(%s:%c:%d:%d): refuses synchronous negotiation. "
"Using asynchronous transfers\n",
ahc_name(ahc), devinfo->channel,
devinfo->target, devinfo->lun);
} else if ((scb->hscb->control & SIMPLE_QUEUE_TAG) != 0) {
int tag_type;
int mask;
tag_type = (scb->hscb->control & SIMPLE_QUEUE_TAG);
if (tag_type == SIMPLE_QUEUE_TAG) {
printk("(%s:%c:%d:%d): refuses tagged commands. "
"Performing non-tagged I/O\n", ahc_name(ahc),
devinfo->channel, devinfo->target, devinfo->lun);
ahc_set_tags(ahc, scb->io_ctx, devinfo, AHC_QUEUE_NONE);
mask = ~0x23;
} else {
printk("(%s:%c:%d:%d): refuses %s tagged commands. "
"Performing simple queue tagged I/O only\n",
ahc_name(ahc), devinfo->channel, devinfo->target,
devinfo->lun, tag_type == ORDERED_QUEUE_TAG
? "ordered" : "head of queue");
ahc_set_tags(ahc, scb->io_ctx, devinfo, AHC_QUEUE_BASIC);
mask = ~0x03;
}
/*
* Resend the identify for this CCB as the target
* may believe that the selection is invalid otherwise.
*/
ahc_outb(ahc, SCB_CONTROL,
ahc_inb(ahc, SCB_CONTROL) & mask);
scb->hscb->control &= mask;
ahc_set_transaction_tag(scb, /*enabled*/FALSE,
/*type*/SIMPLE_QUEUE_TAG);
ahc_outb(ahc, MSG_OUT, MSG_IDENTIFYFLAG);
ahc_assert_atn(ahc);
/*
* This transaction is now at the head of
* the untagged queue for this target.
*/
if ((ahc->flags & AHC_SCB_BTT) == 0) {
struct scb_tailq *untagged_q;
untagged_q =
&(ahc->untagged_queues[devinfo->target_offset]);
TAILQ_INSERT_HEAD(untagged_q, scb, links.tqe);
scb->flags |= SCB_UNTAGGEDQ;
}
ahc_busy_tcl(ahc, BUILD_TCL(scb->hscb->scsiid, devinfo->lun),
scb->hscb->tag);
/*
* Requeue all tagged commands for this target
* currently in our possession so they can be
* converted to untagged commands.
*/
ahc_search_qinfifo(ahc, SCB_GET_TARGET(ahc, scb),
SCB_GET_CHANNEL(ahc, scb),
SCB_GET_LUN(scb), /*tag*/SCB_LIST_NULL,
ROLE_INITIATOR, CAM_REQUEUE_REQ,
SEARCH_COMPLETE);
} else {
/*
* Otherwise, we ignore it.
*/
printk("%s:%c:%d: Message reject for %x -- ignored\n",
ahc_name(ahc), devinfo->channel, devinfo->target,
last_msg);
}
return (response);
}
/*
* Process an ingnore wide residue message.
*/
static void
ahc_handle_ign_wide_residue(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
u_int scb_index;
struct scb *scb;
scb_index = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scb_index);
/*
* XXX Actually check data direction in the sequencer?
* Perhaps add datadir to some spare bits in the hscb?
*/
if ((ahc_inb(ahc, SEQ_FLAGS) & DPHASE) == 0
|| ahc_get_transfer_dir(scb) != CAM_DIR_IN) {
/*
* Ignore the message if we haven't
* seen an appropriate data phase yet.
*/
} else {
/*
* If the residual occurred on the last
* transfer and the transfer request was
* expected to end on an odd count, do
* nothing. Otherwise, subtract a byte
* and update the residual count accordingly.
*/
uint32_t sgptr;
sgptr = ahc_inb(ahc, SCB_RESIDUAL_SGPTR);
if ((sgptr & SG_LIST_NULL) != 0
&& (ahc_inb(ahc, SCB_LUN) & SCB_XFERLEN_ODD) != 0) {
/*
* If the residual occurred on the last
* transfer and the transfer request was
* expected to end on an odd count, do
* nothing.
*/
} else {
struct ahc_dma_seg *sg;
uint32_t data_cnt;
uint32_t data_addr;
uint32_t sglen;
/* Pull in all of the sgptr */
sgptr = ahc_inl(ahc, SCB_RESIDUAL_SGPTR);
data_cnt = ahc_inl(ahc, SCB_RESIDUAL_DATACNT);
if ((sgptr & SG_LIST_NULL) != 0) {
/*
* The residual data count is not updated
* for the command run to completion case.
* Explicitly zero the count.
*/
data_cnt &= ~AHC_SG_LEN_MASK;
}
data_addr = ahc_inl(ahc, SHADDR);
data_cnt += 1;
data_addr -= 1;
sgptr &= SG_PTR_MASK;
sg = ahc_sg_bus_to_virt(scb, sgptr);
/*
* The residual sg ptr points to the next S/G
* to load so we must go back one.
*/
sg--;
sglen = ahc_le32toh(sg->len) & AHC_SG_LEN_MASK;
if (sg != scb->sg_list
&& sglen < (data_cnt & AHC_SG_LEN_MASK)) {
sg--;
sglen = ahc_le32toh(sg->len);
/*
* Preserve High Address and SG_LIST bits
* while setting the count to 1.
*/
data_cnt = 1 | (sglen & (~AHC_SG_LEN_MASK));
data_addr = ahc_le32toh(sg->addr)
+ (sglen & AHC_SG_LEN_MASK) - 1;
/*
* Increment sg so it points to the
* "next" sg.
*/
sg++;
sgptr = ahc_sg_virt_to_bus(scb, sg);
}
ahc_outl(ahc, SCB_RESIDUAL_SGPTR, sgptr);
ahc_outl(ahc, SCB_RESIDUAL_DATACNT, data_cnt);
/*
* Toggle the "oddness" of the transfer length
* to handle this mid-transfer ignore wide
* residue. This ensures that the oddness is
* correct for subsequent data transfers.
*/
ahc_outb(ahc, SCB_LUN,
ahc_inb(ahc, SCB_LUN) ^ SCB_XFERLEN_ODD);
}
}
}
/*
* Reinitialize the data pointers for the active transfer
* based on its current residual.
*/
static void
ahc_reinitialize_dataptrs(struct ahc_softc *ahc)
{
struct scb *scb;
struct ahc_dma_seg *sg;
u_int scb_index;
uint32_t sgptr;
uint32_t resid;
uint32_t dataptr;
scb_index = ahc_inb(ahc, SCB_TAG);
scb = ahc_lookup_scb(ahc, scb_index);
sgptr = (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 3) << 24)
| (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 2) << 16)
| (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 1) << 8)
| ahc_inb(ahc, SCB_RESIDUAL_SGPTR);
sgptr &= SG_PTR_MASK;
sg = ahc_sg_bus_to_virt(scb, sgptr);
/* The residual sg_ptr always points to the next sg */
sg--;
resid = (ahc_inb(ahc, SCB_RESIDUAL_DATACNT + 2) << 16)
| (ahc_inb(ahc, SCB_RESIDUAL_DATACNT + 1) << 8)
| ahc_inb(ahc, SCB_RESIDUAL_DATACNT);
dataptr = ahc_le32toh(sg->addr)
+ (ahc_le32toh(sg->len) & AHC_SG_LEN_MASK)
- resid;
if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
u_int dscommand1;
dscommand1 = ahc_inb(ahc, DSCOMMAND1);
ahc_outb(ahc, DSCOMMAND1, dscommand1 | HADDLDSEL0);
ahc_outb(ahc, HADDR,
(ahc_le32toh(sg->len) >> 24) & SG_HIGH_ADDR_BITS);
ahc_outb(ahc, DSCOMMAND1, dscommand1);
}
ahc_outb(ahc, HADDR + 3, dataptr >> 24);
ahc_outb(ahc, HADDR + 2, dataptr >> 16);
ahc_outb(ahc, HADDR + 1, dataptr >> 8);
ahc_outb(ahc, HADDR, dataptr);
ahc_outb(ahc, HCNT + 2, resid >> 16);
ahc_outb(ahc, HCNT + 1, resid >> 8);
ahc_outb(ahc, HCNT, resid);
if ((ahc->features & AHC_ULTRA2) == 0) {
ahc_outb(ahc, STCNT + 2, resid >> 16);
ahc_outb(ahc, STCNT + 1, resid >> 8);
ahc_outb(ahc, STCNT, resid);
}
}
/*
* Handle the effects of issuing a bus device reset message.
*/
static void
ahc_handle_devreset(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
cam_status status, char *message, int verbose_level)
{
#ifdef AHC_TARGET_MODE
struct ahc_tmode_tstate* tstate;
u_int lun;
#endif
int found;
found = ahc_abort_scbs(ahc, devinfo->target, devinfo->channel,
CAM_LUN_WILDCARD, SCB_LIST_NULL, devinfo->role,
status);
#ifdef AHC_TARGET_MODE
/*
* Send an immediate notify ccb to all target mord peripheral
* drivers affected by this action.
*/
tstate = ahc->enabled_targets[devinfo->our_scsiid];
if (tstate != NULL) {
for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
struct ahc_tmode_lstate* lstate;
lstate = tstate->enabled_luns[lun];
if (lstate == NULL)
continue;
ahc_queue_lstate_event(ahc, lstate, devinfo->our_scsiid,
TARGET_RESET, /*arg*/0);
ahc_send_lstate_events(ahc, lstate);
}
}
#endif
/*
* Go back to async/narrow transfers and renegotiate.
*/
ahc_set_width(ahc, devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_CUR, /*paused*/TRUE);
ahc_set_syncrate(ahc, devinfo, /*syncrate*/NULL,
/*period*/0, /*offset*/0, /*ppr_options*/0,
AHC_TRANS_CUR, /*paused*/TRUE);
if (status != CAM_SEL_TIMEOUT)
ahc_send_async(ahc, devinfo->channel, devinfo->target,
CAM_LUN_WILDCARD, AC_SENT_BDR);
if (message != NULL
&& (verbose_level <= bootverbose))
printk("%s: %s on %c:%d. %d SCBs aborted\n", ahc_name(ahc),
message, devinfo->channel, devinfo->target, found);
}
#ifdef AHC_TARGET_MODE
static void
ahc_setup_target_msgin(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct scb *scb)
{
/*
* To facilitate adding multiple messages together,
* each routine should increment the index and len
* variables instead of setting them explicitly.
*/
ahc->msgout_index = 0;
ahc->msgout_len = 0;
if (scb != NULL && (scb->flags & SCB_AUTO_NEGOTIATE) != 0)
ahc_build_transfer_msg(ahc, devinfo);
else
panic("ahc_intr: AWAITING target message with no message");
ahc->msgout_index = 0;
ahc->msg_type = MSG_TYPE_TARGET_MSGIN;
}
#endif
/**************************** Initialization **********************************/
/*
* Allocate a controller structure for a new device
* and perform initial initializion.
*/
struct ahc_softc *
ahc_alloc(void *platform_arg, char *name)
{
struct ahc_softc *ahc;
int i;
ahc = kzalloc(sizeof(*ahc), GFP_ATOMIC);
if (!ahc) {
printk("aic7xxx: cannot malloc softc!\n");
kfree(name);
return NULL;
}
ahc->seep_config = kmalloc(sizeof(*ahc->seep_config), GFP_ATOMIC);
if (ahc->seep_config == NULL) {
kfree(ahc);
kfree(name);
return (NULL);
}
LIST_INIT(&ahc->pending_scbs);
/* We don't know our unit number until the OSM sets it */
ahc->name = name;
ahc->unit = -1;
ahc->description = NULL;
ahc->channel = 'A';
ahc->channel_b = 'B';
ahc->chip = AHC_NONE;
ahc->features = AHC_FENONE;
ahc->bugs = AHC_BUGNONE;
ahc->flags = AHC_FNONE;
/*
* Default to all error reporting enabled with the
* sequencer operating at its fastest speed.
* The bus attach code may modify this.
*/
ahc->seqctl = FASTMODE;
for (i = 0; i < AHC_NUM_TARGETS; i++)
TAILQ_INIT(&ahc->untagged_queues[i]);
if (ahc_platform_alloc(ahc, platform_arg) != 0) {
ahc_free(ahc);
ahc = NULL;
}
return (ahc);
}
int
ahc_softc_init(struct ahc_softc *ahc)
{
/* The IRQMS bit is only valid on VL and EISA chips */
if ((ahc->chip & AHC_PCI) == 0)
ahc->unpause = ahc_inb(ahc, HCNTRL) & IRQMS;
else
ahc->unpause = 0;
ahc->pause = ahc->unpause | PAUSE;
/* XXX The shared scb data stuff should be deprecated */
if (ahc->scb_data == NULL) {
ahc->scb_data = kzalloc(sizeof(*ahc->scb_data), GFP_ATOMIC);
if (ahc->scb_data == NULL)
return (ENOMEM);
}
return (0);
}
void
ahc_set_unit(struct ahc_softc *ahc, int unit)
{
ahc->unit = unit;
}
void
ahc_set_name(struct ahc_softc *ahc, char *name)
{
kfree(ahc->name);
ahc->name = name;
}
void
ahc_free(struct ahc_softc *ahc)
{
int i;
switch (ahc->init_level) {
default:
case 5:
ahc_shutdown(ahc);
fallthrough;
case 4:
ahc_dmamap_unload(ahc, ahc->shared_data_dmat,
ahc->shared_data_dmamap);
fallthrough;
case 3:
ahc_dmamem_free(ahc, ahc->shared_data_dmat, ahc->qoutfifo,
ahc->shared_data_dmamap);
ahc_dmamap_destroy(ahc, ahc->shared_data_dmat,
ahc->shared_data_dmamap);
fallthrough;
case 2:
ahc_dma_tag_destroy(ahc, ahc->shared_data_dmat);
fallthrough;
case 1:
break;
case 0:
break;
}
ahc_platform_free(ahc);
ahc_fini_scbdata(ahc);
for (i = 0; i < AHC_NUM_TARGETS; i++) {
struct ahc_tmode_tstate *tstate;
tstate = ahc->enabled_targets[i];
if (tstate != NULL) {
#ifdef AHC_TARGET_MODE
int j;
for (j = 0; j < AHC_NUM_LUNS; j++) {
struct ahc_tmode_lstate *lstate;
lstate = tstate->enabled_luns[j];
if (lstate != NULL) {
xpt_free_path(lstate->path);
kfree(lstate);
}
}
#endif
kfree(tstate);
}
}
#ifdef AHC_TARGET_MODE
if (ahc->black_hole != NULL) {
xpt_free_path(ahc->black_hole->path);
kfree(ahc->black_hole);
}
#endif
kfree(ahc->name);
kfree(ahc->seep_config);
kfree(ahc);
return;
}
static void
ahc_shutdown(void *arg)
{
struct ahc_softc *ahc;
int i;
ahc = (struct ahc_softc *)arg;
/* This will reset most registers to 0, but not all */
ahc_reset(ahc, /*reinit*/FALSE);
ahc_outb(ahc, SCSISEQ, 0);
ahc_outb(ahc, SXFRCTL0, 0);
ahc_outb(ahc, DSPCISTATUS, 0);
for (i = TARG_SCSIRATE; i < SCSICONF; i++)
ahc_outb(ahc, i, 0);
}
/*
* Reset the controller and record some information about it
* that is only available just after a reset. If "reinit" is
* non-zero, this reset occurred after initial configuration
* and the caller requests that the chip be fully reinitialized
* to a runable state. Chip interrupts are *not* enabled after
* a reinitialization. The caller must enable interrupts via
* ahc_intr_enable().
*/
int
ahc_reset(struct ahc_softc *ahc, int reinit)
{
u_int sblkctl;
u_int sxfrctl1_a, sxfrctl1_b;
int error;
int wait;
/*
* Preserve the value of the SXFRCTL1 register for all channels.
* It contains settings that affect termination and we don't want
* to disturb the integrity of the bus.
*/
ahc_pause(ahc);
sxfrctl1_b = 0;
if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7770) {
u_int sblkctl;
/*
* Save channel B's settings in case this chip
* is setup for TWIN channel operation.
*/
sblkctl = ahc_inb(ahc, SBLKCTL);
ahc_outb(ahc, SBLKCTL, sblkctl | SELBUSB);
sxfrctl1_b = ahc_inb(ahc, SXFRCTL1);
ahc_outb(ahc, SBLKCTL, sblkctl & ~SELBUSB);
}
sxfrctl1_a = ahc_inb(ahc, SXFRCTL1);
ahc_outb(ahc, HCNTRL, CHIPRST | ahc->pause);
/*
* Ensure that the reset has finished. We delay 1000us
* prior to reading the register to make sure the chip
* has sufficiently completed its reset to handle register
* accesses.
*/
wait = 1000;
do {
ahc_delay(1000);
} while (--wait && !(ahc_inb(ahc, HCNTRL) & CHIPRSTACK));
if (wait == 0) {
printk("%s: WARNING - Failed chip reset! "
"Trying to initialize anyway.\n", ahc_name(ahc));
}
ahc_outb(ahc, HCNTRL, ahc->pause);
/* Determine channel configuration */
sblkctl = ahc_inb(ahc, SBLKCTL) & (SELBUSB|SELWIDE);
/* No Twin Channel PCI cards */
if ((ahc->chip & AHC_PCI) != 0)
sblkctl &= ~SELBUSB;
switch (sblkctl) {
case 0:
/* Single Narrow Channel */
break;
case 2:
/* Wide Channel */
ahc->features |= AHC_WIDE;
break;
case 8:
/* Twin Channel */
ahc->features |= AHC_TWIN;
break;
default:
printk(" Unsupported adapter type. Ignoring\n");
return(-1);
}
/*
* Reload sxfrctl1.
*
* We must always initialize STPWEN to 1 before we
* restore the saved values. STPWEN is initialized
* to a tri-state condition which can only be cleared
* by turning it on.
*/
if ((ahc->features & AHC_TWIN) != 0) {
u_int sblkctl;
sblkctl = ahc_inb(ahc, SBLKCTL);
ahc_outb(ahc, SBLKCTL, sblkctl | SELBUSB);
ahc_outb(ahc, SXFRCTL1, sxfrctl1_b);
ahc_outb(ahc, SBLKCTL, sblkctl & ~SELBUSB);
}
ahc_outb(ahc, SXFRCTL1, sxfrctl1_a);
error = 0;
if (reinit != 0)
/*
* If a recovery action has forced a chip reset,
* re-initialize the chip to our liking.
*/
error = ahc->bus_chip_init(ahc);
#ifdef AHC_DUMP_SEQ
else
ahc_dumpseq(ahc);
#endif
return (error);
}
/*
* Determine the number of SCBs available on the controller
*/
int
ahc_probe_scbs(struct ahc_softc *ahc) {
int i;
for (i = 0; i < AHC_SCB_MAX; i++) {
ahc_outb(ahc, SCBPTR, i);
ahc_outb(ahc, SCB_BASE, i);
if (ahc_inb(ahc, SCB_BASE) != i)
break;
ahc_outb(ahc, SCBPTR, 0);
if (ahc_inb(ahc, SCB_BASE) != 0)
break;
}
return (i);
}
static void
ahc_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
dma_addr_t *baddr;
baddr = (dma_addr_t *)arg;
*baddr = segs->ds_addr;
}
static void
ahc_build_free_scb_list(struct ahc_softc *ahc)
{
int scbsize;
int i;
scbsize = 32;
if ((ahc->flags & AHC_LSCBS_ENABLED) != 0)
scbsize = 64;
for (i = 0; i < ahc->scb_data->maxhscbs; i++) {
int j;
ahc_outb(ahc, SCBPTR, i);
/*
* Touch all SCB bytes to avoid parity errors
* should one of our debugging routines read
* an otherwise uninitiatlized byte.
*/
for (j = 0; j < scbsize; j++)
ahc_outb(ahc, SCB_BASE+j, 0xFF);
/* Clear the control byte. */
ahc_outb(ahc, SCB_CONTROL, 0);
/* Set the next pointer */
if ((ahc->flags & AHC_PAGESCBS) != 0)
ahc_outb(ahc, SCB_NEXT, i+1);
else
ahc_outb(ahc, SCB_NEXT, SCB_LIST_NULL);
/* Make the tag number, SCSIID, and lun invalid */
ahc_outb(ahc, SCB_TAG, SCB_LIST_NULL);
ahc_outb(ahc, SCB_SCSIID, 0xFF);
ahc_outb(ahc, SCB_LUN, 0xFF);
}
if ((ahc->flags & AHC_PAGESCBS) != 0) {
/* SCB 0 heads the free list. */
ahc_outb(ahc, FREE_SCBH, 0);
} else {
/* No free list. */
ahc_outb(ahc, FREE_SCBH, SCB_LIST_NULL);
}
/* Make sure that the last SCB terminates the free list */
ahc_outb(ahc, SCBPTR, i-1);
ahc_outb(ahc, SCB_NEXT, SCB_LIST_NULL);
}
static int
ahc_init_scbdata(struct ahc_softc *ahc)
{
struct scb_data *scb_data;
scb_data = ahc->scb_data;
SLIST_INIT(&scb_data->free_scbs);
SLIST_INIT(&scb_data->sg_maps);
/* Allocate SCB resources */
scb_data->scbarray = kcalloc(AHC_SCB_MAX_ALLOC, sizeof(struct scb),
GFP_ATOMIC);
if (scb_data->scbarray == NULL)
return (ENOMEM);
/* Determine the number of hardware SCBs and initialize them */
scb_data->maxhscbs = ahc_probe_scbs(ahc);
if (ahc->scb_data->maxhscbs == 0) {
printk("%s: No SCB space found\n", ahc_name(ahc));
return (ENXIO);
}
/*
* Create our DMA tags. These tags define the kinds of device
* accessible memory allocations and memory mappings we will
* need to perform during normal operation.
*
* Unless we need to further restrict the allocation, we rely
* on the restrictions of the parent dmat, hence the common
* use of MAXADDR and MAXSIZE.
*/
/* DMA tag for our hardware scb structures */
if (ahc_dma_tag_create(ahc, ahc->parent_dmat, /*alignment*/1,
/*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
AHC_SCB_MAX_ALLOC * sizeof(struct hardware_scb),
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->hscb_dmat) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* Allocation for our hscbs */
if (ahc_dmamem_alloc(ahc, scb_data->hscb_dmat,
(void **)&scb_data->hscbs,
BUS_DMA_NOWAIT, &scb_data->hscb_dmamap) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* And permanently map them */
ahc_dmamap_load(ahc, scb_data->hscb_dmat, scb_data->hscb_dmamap,
scb_data->hscbs,
AHC_SCB_MAX_ALLOC * sizeof(struct hardware_scb),
ahc_dmamap_cb, &scb_data->hscb_busaddr, /*flags*/0);
scb_data->init_level++;
/* DMA tag for our sense buffers */
if (ahc_dma_tag_create(ahc, ahc->parent_dmat, /*alignment*/1,
/*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
AHC_SCB_MAX_ALLOC * sizeof(struct scsi_sense_data),
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->sense_dmat) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* Allocate them */
if (ahc_dmamem_alloc(ahc, scb_data->sense_dmat,
(void **)&scb_data->sense,
BUS_DMA_NOWAIT, &scb_data->sense_dmamap) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* And permanently map them */
ahc_dmamap_load(ahc, scb_data->sense_dmat, scb_data->sense_dmamap,
scb_data->sense,
AHC_SCB_MAX_ALLOC * sizeof(struct scsi_sense_data),
ahc_dmamap_cb, &scb_data->sense_busaddr, /*flags*/0);
scb_data->init_level++;
/* DMA tag for our S/G structures. We allocate in page sized chunks */
if (ahc_dma_tag_create(ahc, ahc->parent_dmat, /*alignment*/8,
/*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
PAGE_SIZE, /*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->sg_dmat) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* Perform initial CCB allocation */
memset(scb_data->hscbs, 0,
AHC_SCB_MAX_ALLOC * sizeof(struct hardware_scb));
ahc_alloc_scbs(ahc);
if (scb_data->numscbs == 0) {
printk("%s: ahc_init_scbdata - "
"Unable to allocate initial scbs\n",
ahc_name(ahc));
goto error_exit;
}
/*
* Reserve the next queued SCB.
*/
ahc->next_queued_scb = ahc_get_scb(ahc);
/*
* Note that we were successful
*/
return (0);
error_exit:
return (ENOMEM);
}
static void
ahc_fini_scbdata(struct ahc_softc *ahc)
{
struct scb_data *scb_data;
scb_data = ahc->scb_data;
if (scb_data == NULL)
return;
switch (scb_data->init_level) {
default:
case 7:
{
struct sg_map_node *sg_map;
while ((sg_map = SLIST_FIRST(&scb_data->sg_maps))!= NULL) {
SLIST_REMOVE_HEAD(&scb_data->sg_maps, links);
ahc_dmamap_unload(ahc, scb_data->sg_dmat,
sg_map->sg_dmamap);
ahc_dmamem_free(ahc, scb_data->sg_dmat,
sg_map->sg_vaddr,
sg_map->sg_dmamap);
kfree(sg_map);
}
ahc_dma_tag_destroy(ahc, scb_data->sg_dmat);
}
fallthrough;
case 6:
ahc_dmamap_unload(ahc, scb_data->sense_dmat,
scb_data->sense_dmamap);
fallthrough;
case 5:
ahc_dmamem_free(ahc, scb_data->sense_dmat, scb_data->sense,
scb_data->sense_dmamap);
ahc_dmamap_destroy(ahc, scb_data->sense_dmat,
scb_data->sense_dmamap);
fallthrough;
case 4:
ahc_dma_tag_destroy(ahc, scb_data->sense_dmat);
fallthrough;
case 3:
ahc_dmamap_unload(ahc, scb_data->hscb_dmat,
scb_data->hscb_dmamap);
fallthrough;
case 2:
ahc_dmamem_free(ahc, scb_data->hscb_dmat, scb_data->hscbs,
scb_data->hscb_dmamap);
ahc_dmamap_destroy(ahc, scb_data->hscb_dmat,
scb_data->hscb_dmamap);
fallthrough;
case 1:
ahc_dma_tag_destroy(ahc, scb_data->hscb_dmat);
break;
case 0:
break;
}
kfree(scb_data->scbarray);
}
static void
ahc_alloc_scbs(struct ahc_softc *ahc)
{
struct scb_data *scb_data;
struct scb *next_scb;
struct sg_map_node *sg_map;
dma_addr_t physaddr;
struct ahc_dma_seg *segs;
int newcount;
int i;
scb_data = ahc->scb_data;
if (scb_data->numscbs >= AHC_SCB_MAX_ALLOC)
/* Can't allocate any more */
return;
next_scb = &scb_data->scbarray[scb_data->numscbs];
sg_map = kmalloc(sizeof(*sg_map), GFP_ATOMIC);
if (sg_map == NULL)
return;
/* Allocate S/G space for the next batch of SCBS */
if (ahc_dmamem_alloc(ahc, scb_data->sg_dmat,
(void **)&sg_map->sg_vaddr,
BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) {
kfree(sg_map);
return;
}
SLIST_INSERT_HEAD(&scb_data->sg_maps, sg_map, links);
ahc_dmamap_load(ahc, scb_data->sg_dmat, sg_map->sg_dmamap,
sg_map->sg_vaddr, PAGE_SIZE, ahc_dmamap_cb,
&sg_map->sg_physaddr, /*flags*/0);
segs = sg_map->sg_vaddr;
physaddr = sg_map->sg_physaddr;
newcount = (PAGE_SIZE / (AHC_NSEG * sizeof(struct ahc_dma_seg)));
newcount = min(newcount, (AHC_SCB_MAX_ALLOC - scb_data->numscbs));
for (i = 0; i < newcount; i++) {
struct scb_platform_data *pdata;
pdata = kmalloc(sizeof(*pdata), GFP_ATOMIC);
if (pdata == NULL)
break;
next_scb->platform_data = pdata;
next_scb->sg_map = sg_map;
next_scb->sg_list = segs;
/*
* The sequencer always starts with the second entry.
* The first entry is embedded in the scb.
*/
next_scb->sg_list_phys = physaddr + sizeof(struct ahc_dma_seg);
next_scb->ahc_softc = ahc;
next_scb->flags = SCB_FREE;
next_scb->hscb = &scb_data->hscbs[scb_data->numscbs];
next_scb->hscb->tag = ahc->scb_data->numscbs;
SLIST_INSERT_HEAD(&ahc->scb_data->free_scbs,
next_scb, links.sle);
segs += AHC_NSEG;
physaddr += (AHC_NSEG * sizeof(struct ahc_dma_seg));
next_scb++;
ahc->scb_data->numscbs++;
}
}
void
ahc_controller_info(struct ahc_softc *ahc, char *buf)
{
int len;
len = sprintf(buf, "%s: ", ahc_chip_names[ahc->chip & AHC_CHIPID_MASK]);
buf += len;
if ((ahc->features & AHC_TWIN) != 0)
len = sprintf(buf, "Twin Channel, A SCSI Id=%d, "
"B SCSI Id=%d, primary %c, ",
ahc->our_id, ahc->our_id_b,
(ahc->flags & AHC_PRIMARY_CHANNEL) + 'A');
else {
const char *speed;
const char *type;
speed = "";
if ((ahc->features & AHC_ULTRA) != 0) {
speed = "Ultra ";
} else if ((ahc->features & AHC_DT) != 0) {
speed = "Ultra160 ";
} else if ((ahc->features & AHC_ULTRA2) != 0) {
speed = "Ultra2 ";
}
if ((ahc->features & AHC_WIDE) != 0) {
type = "Wide";
} else {
type = "Single";
}
len = sprintf(buf, "%s%s Channel %c, SCSI Id=%d, ",
speed, type, ahc->channel, ahc->our_id);
}
buf += len;
if ((ahc->flags & AHC_PAGESCBS) != 0)
sprintf(buf, "%d/%d SCBs",
ahc->scb_data->maxhscbs, AHC_MAX_QUEUE);
else
sprintf(buf, "%d SCBs", ahc->scb_data->maxhscbs);
}
int
ahc_chip_init(struct ahc_softc *ahc)
{
int term;
int error;
u_int i;
u_int scsi_conf;
u_int scsiseq_template;
uint32_t physaddr;
ahc_outb(ahc, SEQ_FLAGS, 0);
ahc_outb(ahc, SEQ_FLAGS2, 0);
/* Set the SCSI Id, SXFRCTL0, SXFRCTL1, and SIMODE1, for both channels*/
if (ahc->features & AHC_TWIN) {
/*
* Setup Channel B first.
*/
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) | SELBUSB);
term = (ahc->flags & AHC_TERM_ENB_B) != 0 ? STPWEN : 0;
ahc_outb(ahc, SCSIID, ahc->our_id_b);
scsi_conf = ahc_inb(ahc, SCSICONF + 1);
ahc_outb(ahc, SXFRCTL1, (scsi_conf & (ENSPCHK|STIMESEL))
|term|ahc->seltime_b|ENSTIMER|ACTNEGEN);
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, SIMODE0, ahc_inb(ahc, SIMODE0)|ENIOERR);
ahc_outb(ahc, SIMODE1, ENSELTIMO|ENSCSIRST|ENSCSIPERR);
ahc_outb(ahc, SXFRCTL0, DFON|SPIOEN);
/* Select Channel A */
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~SELBUSB);
}
term = (ahc->flags & AHC_TERM_ENB_A) != 0 ? STPWEN : 0;
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, SCSIID_ULTRA2, ahc->our_id);
else
ahc_outb(ahc, SCSIID, ahc->our_id);
scsi_conf = ahc_inb(ahc, SCSICONF);
ahc_outb(ahc, SXFRCTL1, (scsi_conf & (ENSPCHK|STIMESEL))
|term|ahc->seltime
|ENSTIMER|ACTNEGEN);
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, SIMODE0, ahc_inb(ahc, SIMODE0)|ENIOERR);
ahc_outb(ahc, SIMODE1, ENSELTIMO|ENSCSIRST|ENSCSIPERR);
ahc_outb(ahc, SXFRCTL0, DFON|SPIOEN);
/* There are no untagged SCBs active yet. */
for (i = 0; i < 16; i++) {
ahc_unbusy_tcl(ahc, BUILD_TCL(i << 4, 0));
if ((ahc->flags & AHC_SCB_BTT) != 0) {
int lun;
/*
* The SCB based BTT allows an entry per
* target and lun pair.
*/
for (lun = 1; lun < AHC_NUM_LUNS; lun++)
ahc_unbusy_tcl(ahc, BUILD_TCL(i << 4, lun));
}
}
/* All of our queues are empty */
for (i = 0; i < 256; i++)
ahc->qoutfifo[i] = SCB_LIST_NULL;
ahc_sync_qoutfifo(ahc, BUS_DMASYNC_PREREAD);
for (i = 0; i < 256; i++)
ahc->qinfifo[i] = SCB_LIST_NULL;
if ((ahc->features & AHC_MULTI_TID) != 0) {
ahc_outb(ahc, TARGID, 0);
ahc_outb(ahc, TARGID + 1, 0);
}
/*
* Tell the sequencer where it can find our arrays in memory.
*/
physaddr = ahc->scb_data->hscb_busaddr;
ahc_outb(ahc, HSCB_ADDR, physaddr & 0xFF);
ahc_outb(ahc, HSCB_ADDR + 1, (physaddr >> 8) & 0xFF);
ahc_outb(ahc, HSCB_ADDR + 2, (physaddr >> 16) & 0xFF);
ahc_outb(ahc, HSCB_ADDR + 3, (physaddr >> 24) & 0xFF);
physaddr = ahc->shared_data_busaddr;
ahc_outb(ahc, SHARED_DATA_ADDR, physaddr & 0xFF);
ahc_outb(ahc, SHARED_DATA_ADDR + 1, (physaddr >> 8) & 0xFF);
ahc_outb(ahc, SHARED_DATA_ADDR + 2, (physaddr >> 16) & 0xFF);
ahc_outb(ahc, SHARED_DATA_ADDR + 3, (physaddr >> 24) & 0xFF);
/*
* Initialize the group code to command length table.
* This overrides the values in TARG_SCSIRATE, so only
* setup the table after we have processed that information.
*/
ahc_outb(ahc, CMDSIZE_TABLE, 5);
ahc_outb(ahc, CMDSIZE_TABLE + 1, 9);
ahc_outb(ahc, CMDSIZE_TABLE + 2, 9);
ahc_outb(ahc, CMDSIZE_TABLE + 3, 0);
ahc_outb(ahc, CMDSIZE_TABLE + 4, 15);
ahc_outb(ahc, CMDSIZE_TABLE + 5, 11);
ahc_outb(ahc, CMDSIZE_TABLE + 6, 0);
ahc_outb(ahc, CMDSIZE_TABLE + 7, 0);
if ((ahc->features & AHC_HS_MAILBOX) != 0)
ahc_outb(ahc, HS_MAILBOX, 0);
/* Tell the sequencer of our initial queue positions */
if ((ahc->features & AHC_TARGETMODE) != 0) {
ahc->tqinfifonext = 1;
ahc_outb(ahc, KERNEL_TQINPOS, ahc->tqinfifonext - 1);
ahc_outb(ahc, TQINPOS, ahc->tqinfifonext);
}
ahc->qinfifonext = 0;
ahc->qoutfifonext = 0;
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
ahc_outb(ahc, QOFF_CTLSTA, SCB_QSIZE_256);
ahc_outb(ahc, HNSCB_QOFF, ahc->qinfifonext);
ahc_outb(ahc, SNSCB_QOFF, ahc->qinfifonext);
ahc_outb(ahc, SDSCB_QOFF, 0);
} else {
ahc_outb(ahc, KERNEL_QINPOS, ahc->qinfifonext);
ahc_outb(ahc, QINPOS, ahc->qinfifonext);
ahc_outb(ahc, QOUTPOS, ahc->qoutfifonext);
}
/* We don't have any waiting selections */
ahc_outb(ahc, WAITING_SCBH, SCB_LIST_NULL);
/* Our disconnection list is empty too */
ahc_outb(ahc, DISCONNECTED_SCBH, SCB_LIST_NULL);
/* Message out buffer starts empty */
ahc_outb(ahc, MSG_OUT, NOP);
/*
* Setup the allowed SCSI Sequences based on operational mode.
* If we are a target, we'll enable select in operations once
* we've had a lun enabled.
*/
scsiseq_template = ENSELO|ENAUTOATNO|ENAUTOATNP;
if ((ahc->flags & AHC_INITIATORROLE) != 0)
scsiseq_template |= ENRSELI;
ahc_outb(ahc, SCSISEQ_TEMPLATE, scsiseq_template);
/* Initialize our list of free SCBs. */
ahc_build_free_scb_list(ahc);
/*
* Tell the sequencer which SCB will be the next one it receives.
*/
ahc_outb(ahc, NEXT_QUEUED_SCB, ahc->next_queued_scb->hscb->tag);
/*
* Load the Sequencer program and Enable the adapter
* in "fast" mode.
*/
if (bootverbose)
printk("%s: Downloading Sequencer Program...",
ahc_name(ahc));
error = ahc_loadseq(ahc);
if (error != 0)
return (error);
if ((ahc->features & AHC_ULTRA2) != 0) {
int wait;
/*
* Wait for up to 500ms for our transceivers
* to settle. If the adapter does not have
* a cable attached, the transceivers may
* never settle, so don't complain if we
* fail here.
*/
for (wait = 5000;
(ahc_inb(ahc, SBLKCTL) & (ENAB40|ENAB20)) == 0 && wait;
wait--)
ahc_delay(100);
}
ahc_restart(ahc);
return (0);
}
/*
* Start the board, ready for normal operation
*/
int
ahc_init(struct ahc_softc *ahc)
{
int max_targ;
u_int i;
u_int scsi_conf;
u_int ultraenb;
u_int discenable;
u_int tagenable;
size_t driver_data_size;
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_DEBUG_SEQUENCER) != 0)
ahc->flags |= AHC_SEQUENCER_DEBUG;
#endif
#ifdef AHC_PRINT_SRAM
printk("Scratch Ram:");
for (i = 0x20; i < 0x5f; i++) {
if (((i % 8) == 0) && (i != 0)) {
printk ("\n ");
}
printk (" 0x%x", ahc_inb(ahc, i));
}
if ((ahc->features & AHC_MORE_SRAM) != 0) {
for (i = 0x70; i < 0x7f; i++) {
if (((i % 8) == 0) && (i != 0)) {
printk ("\n ");
}
printk (" 0x%x", ahc_inb(ahc, i));
}
}
printk ("\n");
/*
* Reading uninitialized scratch ram may
* generate parity errors.
*/
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
#endif
max_targ = 15;
/*
* Assume we have a board at this stage and it has been reset.
*/
if ((ahc->flags & AHC_USEDEFAULTS) != 0)
ahc->our_id = ahc->our_id_b = 7;
/*
* Default to allowing initiator operations.
*/
ahc->flags |= AHC_INITIATORROLE;
/*
* Only allow target mode features if this unit has them enabled.
*/
if ((AHC_TMODE_ENABLE & (0x1 << ahc->unit)) == 0)
ahc->features &= ~AHC_TARGETMODE;
ahc->init_level++;
/*
* DMA tag for our command fifos and other data in system memory
* the card's sequencer must be able to access. For initiator
* roles, we need to allocate space for the qinfifo and qoutfifo.
* The qinfifo and qoutfifo are composed of 256 1 byte elements.
* When providing for the target mode role, we must additionally
* provide space for the incoming target command fifo and an extra
* byte to deal with a dma bug in some chip versions.
*/
driver_data_size = 2 * 256 * sizeof(uint8_t);
if ((ahc->features & AHC_TARGETMODE) != 0)
driver_data_size += AHC_TMODE_CMDS * sizeof(struct target_cmd)
+ /*DMA WideOdd Bug Buffer*/1;
if (ahc_dma_tag_create(ahc, ahc->parent_dmat, /*alignment*/1,
/*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
driver_data_size,
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &ahc->shared_data_dmat) != 0) {
return (ENOMEM);
}
ahc->init_level++;
/* Allocation of driver data */
if (ahc_dmamem_alloc(ahc, ahc->shared_data_dmat,
(void **)&ahc->qoutfifo,
BUS_DMA_NOWAIT, &ahc->shared_data_dmamap) != 0) {
return (ENOMEM);
}
ahc->init_level++;
/* And permanently map it in */
ahc_dmamap_load(ahc, ahc->shared_data_dmat, ahc->shared_data_dmamap,
ahc->qoutfifo, driver_data_size, ahc_dmamap_cb,
&ahc->shared_data_busaddr, /*flags*/0);
if ((ahc->features & AHC_TARGETMODE) != 0) {
ahc->targetcmds = (struct target_cmd *)ahc->qoutfifo;
ahc->qoutfifo = (uint8_t *)&ahc->targetcmds[AHC_TMODE_CMDS];
ahc->dma_bug_buf = ahc->shared_data_busaddr
+ driver_data_size - 1;
/* All target command blocks start out invalid. */
for (i = 0; i < AHC_TMODE_CMDS; i++)
ahc->targetcmds[i].cmd_valid = 0;
ahc_sync_tqinfifo(ahc, BUS_DMASYNC_PREREAD);
ahc->qoutfifo = (uint8_t *)&ahc->targetcmds[256];
}
ahc->qinfifo = &ahc->qoutfifo[256];
ahc->init_level++;
/* Allocate SCB data now that buffer_dmat is initialized */
if (ahc->scb_data->maxhscbs == 0)
if (ahc_init_scbdata(ahc) != 0)
return (ENOMEM);
/*
* Allocate a tstate to house information for our
* initiator presence on the bus as well as the user
* data for any target mode initiator.
*/
if (ahc_alloc_tstate(ahc, ahc->our_id, 'A') == NULL) {
printk("%s: unable to allocate ahc_tmode_tstate. "
"Failing attach\n", ahc_name(ahc));
return (ENOMEM);
}
if ((ahc->features & AHC_TWIN) != 0) {
if (ahc_alloc_tstate(ahc, ahc->our_id_b, 'B') == NULL) {
printk("%s: unable to allocate ahc_tmode_tstate. "
"Failing attach\n", ahc_name(ahc));
return (ENOMEM);
}
}
if (ahc->scb_data->maxhscbs < AHC_SCB_MAX_ALLOC) {
ahc->flags |= AHC_PAGESCBS;
} else {
ahc->flags &= ~AHC_PAGESCBS;
}
#ifdef AHC_DEBUG
if (ahc_debug & AHC_SHOW_MISC) {
printk("%s: hardware scb %u bytes; kernel scb %u bytes; "
"ahc_dma %u bytes\n",
ahc_name(ahc),
(u_int)sizeof(struct hardware_scb),
(u_int)sizeof(struct scb),
(u_int)sizeof(struct ahc_dma_seg));
}
#endif /* AHC_DEBUG */
/*
* Look at the information that board initialization or
* the board bios has left us.
*/
if (ahc->features & AHC_TWIN) {
scsi_conf = ahc_inb(ahc, SCSICONF + 1);
if ((scsi_conf & RESET_SCSI) != 0
&& (ahc->flags & AHC_INITIATORROLE) != 0)
ahc->flags |= AHC_RESET_BUS_B;
}
scsi_conf = ahc_inb(ahc, SCSICONF);
if ((scsi_conf & RESET_SCSI) != 0
&& (ahc->flags & AHC_INITIATORROLE) != 0)
ahc->flags |= AHC_RESET_BUS_A;
ultraenb = 0;
tagenable = ALL_TARGETS_MASK;
/* Grab the disconnection disable table and invert it for our needs */
if ((ahc->flags & AHC_USEDEFAULTS) != 0) {
printk("%s: Host Adapter Bios disabled. Using default SCSI "
"device parameters\n", ahc_name(ahc));
ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B|
AHC_TERM_ENB_A|AHC_TERM_ENB_B;
discenable = ALL_TARGETS_MASK;
if ((ahc->features & AHC_ULTRA) != 0)
ultraenb = ALL_TARGETS_MASK;
} else {
discenable = ~((ahc_inb(ahc, DISC_DSB + 1) << 8)
| ahc_inb(ahc, DISC_DSB));
if ((ahc->features & (AHC_ULTRA|AHC_ULTRA2)) != 0)
ultraenb = (ahc_inb(ahc, ULTRA_ENB + 1) << 8)
| ahc_inb(ahc, ULTRA_ENB);
}
if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
max_targ = 7;
for (i = 0; i <= max_targ; i++) {
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
u_int our_id;
u_int target_id;
char channel;
channel = 'A';
our_id = ahc->our_id;
target_id = i;
if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
channel = 'B';
our_id = ahc->our_id_b;
target_id = i % 8;
}
tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
target_id, &tstate);
/* Default to async narrow across the board */
memset(tinfo, 0, sizeof(*tinfo));
if (ahc->flags & AHC_USEDEFAULTS) {
if ((ahc->features & AHC_WIDE) != 0)
tinfo->user.width = MSG_EXT_WDTR_BUS_16_BIT;
/*
* These will be truncated when we determine the
* connection type we have with the target.
*/
tinfo->user.period = ahc_syncrates->period;
tinfo->user.offset = MAX_OFFSET;
} else {
u_int scsirate;
uint16_t mask;
/* Take the settings leftover in scratch RAM. */
scsirate = ahc_inb(ahc, TARG_SCSIRATE + i);
mask = (0x01 << i);
if ((ahc->features & AHC_ULTRA2) != 0) {
u_int offset;
u_int maxsync;
if ((scsirate & SOFS) == 0x0F) {
/*
* Haven't negotiated yet,
* so the format is different.
*/
scsirate = (scsirate & SXFR) >> 4
| (ultraenb & mask)
? 0x08 : 0x0
| (scsirate & WIDEXFER);
offset = MAX_OFFSET_ULTRA2;
} else
offset = ahc_inb(ahc, TARG_OFFSET + i);
if ((scsirate & ~WIDEXFER) == 0 && offset != 0)
/* Set to the lowest sync rate, 5MHz */
scsirate |= 0x1c;
maxsync = AHC_SYNCRATE_ULTRA2;
if ((ahc->features & AHC_DT) != 0)
maxsync = AHC_SYNCRATE_DT;
tinfo->user.period =
ahc_find_period(ahc, scsirate, maxsync);
if (offset == 0)
tinfo->user.period = 0;
else
tinfo->user.offset = MAX_OFFSET;
if ((scsirate & SXFR_ULTRA2) <= 8/*10MHz*/
&& (ahc->features & AHC_DT) != 0)
tinfo->user.ppr_options =
MSG_EXT_PPR_DT_REQ;
} else if ((scsirate & SOFS) != 0) {
if ((scsirate & SXFR) == 0x40
&& (ultraenb & mask) != 0) {
/* Treat 10MHz as a non-ultra speed */
scsirate &= ~SXFR;
ultraenb &= ~mask;
}
tinfo->user.period =
ahc_find_period(ahc, scsirate,
(ultraenb & mask)
? AHC_SYNCRATE_ULTRA
: AHC_SYNCRATE_FAST);
if (tinfo->user.period != 0)
tinfo->user.offset = MAX_OFFSET;
}
if (tinfo->user.period == 0)
tinfo->user.offset = 0;
if ((scsirate & WIDEXFER) != 0
&& (ahc->features & AHC_WIDE) != 0)
tinfo->user.width = MSG_EXT_WDTR_BUS_16_BIT;
tinfo->user.protocol_version = 4;
if ((ahc->features & AHC_DT) != 0)
tinfo->user.transport_version = 3;
else
tinfo->user.transport_version = 2;
tinfo->goal.protocol_version = 2;
tinfo->goal.transport_version = 2;
tinfo->curr.protocol_version = 2;
tinfo->curr.transport_version = 2;
}
tstate->ultraenb = 0;
}
ahc->user_discenable = discenable;
ahc->user_tagenable = tagenable;
return (ahc->bus_chip_init(ahc));
}
void
ahc_intr_enable(struct ahc_softc *ahc, int enable)
{
u_int hcntrl;
hcntrl = ahc_inb(ahc, HCNTRL);
hcntrl &= ~INTEN;
ahc->pause &= ~INTEN;
ahc->unpause &= ~INTEN;
if (enable) {
hcntrl |= INTEN;
ahc->pause |= INTEN;
ahc->unpause |= INTEN;
}
ahc_outb(ahc, HCNTRL, hcntrl);
}
/*
* Ensure that the card is paused in a location
* outside of all critical sections and that all
* pending work is completed prior to returning.
* This routine should only be called from outside
* an interrupt context.
*/
void
ahc_pause_and_flushwork(struct ahc_softc *ahc)
{
int intstat;
int maxloops;
int paused;
maxloops = 1000;
ahc->flags |= AHC_ALL_INTERRUPTS;
paused = FALSE;
do {
if (paused) {
ahc_unpause(ahc);
/*
* Give the sequencer some time to service
* any active selections.
*/
ahc_delay(500);
}
ahc_intr(ahc);
ahc_pause(ahc);
paused = TRUE;
ahc_outb(ahc, SCSISEQ, ahc_inb(ahc, SCSISEQ) & ~ENSELO);
intstat = ahc_inb(ahc, INTSTAT);
if ((intstat & INT_PEND) == 0) {
ahc_clear_critical_section(ahc);
intstat = ahc_inb(ahc, INTSTAT);
}
} while (--maxloops
&& (intstat != 0xFF || (ahc->features & AHC_REMOVABLE) == 0)
&& ((intstat & INT_PEND) != 0
|| (ahc_inb(ahc, SSTAT0) & (SELDO|SELINGO)) != 0));
if (maxloops == 0) {
printk("Infinite interrupt loop, INTSTAT = %x",
ahc_inb(ahc, INTSTAT));
}
ahc_platform_flushwork(ahc);
ahc->flags &= ~AHC_ALL_INTERRUPTS;
}
int __maybe_unused
ahc_suspend(struct ahc_softc *ahc)
{
ahc_pause_and_flushwork(ahc);
if (LIST_FIRST(&ahc->pending_scbs) != NULL) {
ahc_unpause(ahc);
return (EBUSY);
}
#ifdef AHC_TARGET_MODE
/*
* XXX What about ATIOs that have not yet been serviced?
* Perhaps we should just refuse to be suspended if we
* are acting in a target role.
*/
if (ahc->pending_device != NULL) {
ahc_unpause(ahc);
return (EBUSY);
}
#endif
ahc_shutdown(ahc);
return (0);
}
int __maybe_unused
ahc_resume(struct ahc_softc *ahc)
{
ahc_reset(ahc, /*reinit*/TRUE);
ahc_intr_enable(ahc, TRUE);
ahc_restart(ahc);
return (0);
}
/************************** Busy Target Table *********************************/
/*
* Return the untagged transaction id for a given target/channel lun.
* Optionally, clear the entry.
*/
static u_int
ahc_index_busy_tcl(struct ahc_softc *ahc, u_int tcl)
{
u_int scbid;
u_int target_offset;
if ((ahc->flags & AHC_SCB_BTT) != 0) {
u_int saved_scbptr;
saved_scbptr = ahc_inb(ahc, SCBPTR);
ahc_outb(ahc, SCBPTR, TCL_LUN(tcl));
scbid = ahc_inb(ahc, SCB_64_BTT + TCL_TARGET_OFFSET(tcl));
ahc_outb(ahc, SCBPTR, saved_scbptr);
} else {
target_offset = TCL_TARGET_OFFSET(tcl);
scbid = ahc_inb(ahc, BUSY_TARGETS + target_offset);
}
return (scbid);
}
static void
ahc_unbusy_tcl(struct ahc_softc *ahc, u_int tcl)
{
u_int target_offset;
if ((ahc->flags & AHC_SCB_BTT) != 0) {
u_int saved_scbptr;
saved_scbptr = ahc_inb(ahc, SCBPTR);
ahc_outb(ahc, SCBPTR, TCL_LUN(tcl));
ahc_outb(ahc, SCB_64_BTT+TCL_TARGET_OFFSET(tcl), SCB_LIST_NULL);
ahc_outb(ahc, SCBPTR, saved_scbptr);
} else {
target_offset = TCL_TARGET_OFFSET(tcl);
ahc_outb(ahc, BUSY_TARGETS + target_offset, SCB_LIST_NULL);
}
}
static void
ahc_busy_tcl(struct ahc_softc *ahc, u_int tcl, u_int scbid)
{
u_int target_offset;
if ((ahc->flags & AHC_SCB_BTT) != 0) {
u_int saved_scbptr;
saved_scbptr = ahc_inb(ahc, SCBPTR);
ahc_outb(ahc, SCBPTR, TCL_LUN(tcl));
ahc_outb(ahc, SCB_64_BTT + TCL_TARGET_OFFSET(tcl), scbid);
ahc_outb(ahc, SCBPTR, saved_scbptr);
} else {
target_offset = TCL_TARGET_OFFSET(tcl);
ahc_outb(ahc, BUSY_TARGETS + target_offset, scbid);
}
}
/************************** SCB and SCB queue management **********************/
int
ahc_match_scb(struct ahc_softc *ahc, struct scb *scb, int target,
char channel, int lun, u_int tag, role_t role)
{
int targ = SCB_GET_TARGET(ahc, scb);
char chan = SCB_GET_CHANNEL(ahc, scb);
int slun = SCB_GET_LUN(scb);
int match;
match = ((chan == channel) || (channel == ALL_CHANNELS));
if (match != 0)
match = ((targ == target) || (target == CAM_TARGET_WILDCARD));
if (match != 0)
match = ((lun == slun) || (lun == CAM_LUN_WILDCARD));
if (match != 0) {
#ifdef AHC_TARGET_MODE
int group;
group = XPT_FC_GROUP(scb->io_ctx->ccb_h.func_code);
if (role == ROLE_INITIATOR) {
match = (group != XPT_FC_GROUP_TMODE)
&& ((tag == scb->hscb->tag)
|| (tag == SCB_LIST_NULL));
} else if (role == ROLE_TARGET) {
match = (group == XPT_FC_GROUP_TMODE)
&& ((tag == scb->io_ctx->csio.tag_id)
|| (tag == SCB_LIST_NULL));
}
#else /* !AHC_TARGET_MODE */
match = ((tag == scb->hscb->tag) || (tag == SCB_LIST_NULL));
#endif /* AHC_TARGET_MODE */
}
return match;
}
static void
ahc_freeze_devq(struct ahc_softc *ahc, struct scb *scb)
{
int target;
char channel;
int lun;
target = SCB_GET_TARGET(ahc, scb);
lun = SCB_GET_LUN(scb);
channel = SCB_GET_CHANNEL(ahc, scb);
ahc_search_qinfifo(ahc, target, channel, lun,
/*tag*/SCB_LIST_NULL, ROLE_UNKNOWN,
CAM_REQUEUE_REQ, SEARCH_COMPLETE);
ahc_platform_freeze_devq(ahc, scb);
}
void
ahc_qinfifo_requeue_tail(struct ahc_softc *ahc, struct scb *scb)
{
struct scb *prev_scb;
prev_scb = NULL;
if (ahc_qinfifo_count(ahc) != 0) {
u_int prev_tag;
uint8_t prev_pos;
prev_pos = ahc->qinfifonext - 1;
prev_tag = ahc->qinfifo[prev_pos];
prev_scb = ahc_lookup_scb(ahc, prev_tag);
}
ahc_qinfifo_requeue(ahc, prev_scb, scb);
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
ahc_outb(ahc, HNSCB_QOFF, ahc->qinfifonext);
} else {
ahc_outb(ahc, KERNEL_QINPOS, ahc->qinfifonext);
}
}
static void
ahc_qinfifo_requeue(struct ahc_softc *ahc, struct scb *prev_scb,
struct scb *scb)
{
if (prev_scb == NULL) {
ahc_outb(ahc, NEXT_QUEUED_SCB, scb->hscb->tag);
} else {
prev_scb->hscb->next = scb->hscb->tag;
ahc_sync_scb(ahc, prev_scb,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
}
ahc->qinfifo[ahc->qinfifonext++] = scb->hscb->tag;
scb->hscb->next = ahc->next_queued_scb->hscb->tag;
ahc_sync_scb(ahc, scb, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
}
static int
ahc_qinfifo_count(struct ahc_softc *ahc)
{
uint8_t qinpos;
uint8_t diff;
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
qinpos = ahc_inb(ahc, SNSCB_QOFF);
ahc_outb(ahc, SNSCB_QOFF, qinpos);
} else
qinpos = ahc_inb(ahc, QINPOS);
diff = ahc->qinfifonext - qinpos;
return (diff);
}
int
ahc_search_qinfifo(struct ahc_softc *ahc, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status,
ahc_search_action action)
{
struct scb *scb;
struct scb *prev_scb;
uint8_t qinstart;
uint8_t qinpos;
uint8_t qintail;
uint8_t next;
uint8_t prev;
uint8_t curscbptr;
int found;
int have_qregs;
qintail = ahc->qinfifonext;
have_qregs = (ahc->features & AHC_QUEUE_REGS) != 0;
if (have_qregs) {
qinstart = ahc_inb(ahc, SNSCB_QOFF);
ahc_outb(ahc, SNSCB_QOFF, qinstart);
} else
qinstart = ahc_inb(ahc, QINPOS);
qinpos = qinstart;
found = 0;
prev_scb = NULL;
if (action == SEARCH_COMPLETE) {
/*
* Don't attempt to run any queued untagged transactions
* until we are done with the abort process.
*/
ahc_freeze_untagged_queues(ahc);
}
/*
* Start with an empty queue. Entries that are not chosen
* for removal will be re-added to the queue as we go.
*/
ahc->qinfifonext = qinpos;
ahc_outb(ahc, NEXT_QUEUED_SCB, ahc->next_queued_scb->hscb->tag);
while (qinpos != qintail) {
scb = ahc_lookup_scb(ahc, ahc->qinfifo[qinpos]);
if (scb == NULL) {
printk("qinpos = %d, SCB index = %d\n",
qinpos, ahc->qinfifo[qinpos]);
panic("Loop 1\n");
}
if (ahc_match_scb(ahc, scb, target, channel, lun, tag, role)) {
/*
* We found an scb that needs to be acted on.
*/
found++;
switch (action) {
case SEARCH_COMPLETE:
{
cam_status ostat;
cam_status cstat;
ostat = ahc_get_transaction_status(scb);
if (ostat == CAM_REQ_INPROG)
ahc_set_transaction_status(scb, status);
cstat = ahc_get_transaction_status(scb);
if (cstat != CAM_REQ_CMP)
ahc_freeze_scb(scb);
if ((scb->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB in qinfifo\n");
ahc_done(ahc, scb);
}
fallthrough;
case SEARCH_REMOVE:
break;
case SEARCH_COUNT:
ahc_qinfifo_requeue(ahc, prev_scb, scb);
prev_scb = scb;
break;
}
} else {
ahc_qinfifo_requeue(ahc, prev_scb, scb);
prev_scb = scb;
}
qinpos++;
}
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
ahc_outb(ahc, HNSCB_QOFF, ahc->qinfifonext);
} else {
ahc_outb(ahc, KERNEL_QINPOS, ahc->qinfifonext);
}
if (action != SEARCH_COUNT
&& (found != 0)
&& (qinstart != ahc->qinfifonext)) {
/*
* The sequencer may be in the process of dmaing
* down the SCB at the beginning of the queue.
* This could be problematic if either the first,
* or the second SCB is removed from the queue
* (the first SCB includes a pointer to the "next"
* SCB to dma). If we have removed any entries, swap
* the first element in the queue with the next HSCB
* so the sequencer will notice that NEXT_QUEUED_SCB
* has changed during its dma attempt and will retry
* the DMA.
*/
scb = ahc_lookup_scb(ahc, ahc->qinfifo[qinstart]);
if (scb == NULL) {
printk("found = %d, qinstart = %d, qinfifionext = %d\n",
found, qinstart, ahc->qinfifonext);
panic("First/Second Qinfifo fixup\n");
}
/*
* ahc_swap_with_next_hscb forces our next pointer to
* point to the reserved SCB for future commands. Save
* and restore our original next pointer to maintain
* queue integrity.
*/
next = scb->hscb->next;
ahc->scb_data->scbindex[scb->hscb->tag] = NULL;
ahc_swap_with_next_hscb(ahc, scb);
scb->hscb->next = next;
ahc->qinfifo[qinstart] = scb->hscb->tag;
/* Tell the card about the new head of the qinfifo. */
ahc_outb(ahc, NEXT_QUEUED_SCB, scb->hscb->tag);
/* Fixup the tail "next" pointer. */
qintail = ahc->qinfifonext - 1;
scb = ahc_lookup_scb(ahc, ahc->qinfifo[qintail]);
scb->hscb->next = ahc->next_queued_scb->hscb->tag;
}
/*
* Search waiting for selection list.
*/
curscbptr = ahc_inb(ahc, SCBPTR);
next = ahc_inb(ahc, WAITING_SCBH); /* Start at head of list. */
prev = SCB_LIST_NULL;
while (next != SCB_LIST_NULL) {
uint8_t scb_index;
ahc_outb(ahc, SCBPTR, next);
scb_index = ahc_inb(ahc, SCB_TAG);
if (scb_index >= ahc->scb_data->numscbs) {
printk("Waiting List inconsistency. "
"SCB index == %d, yet numscbs == %d.",
scb_index, ahc->scb_data->numscbs);
ahc_dump_card_state(ahc);
panic("for safety");
}
scb = ahc_lookup_scb(ahc, scb_index);
if (scb == NULL) {
printk("scb_index = %d, next = %d\n",
scb_index, next);
panic("Waiting List traversal\n");
}
if (ahc_match_scb(ahc, scb, target, channel,
lun, SCB_LIST_NULL, role)) {
/*
* We found an scb that needs to be acted on.
*/
found++;
switch (action) {
case SEARCH_COMPLETE:
{
cam_status ostat;
cam_status cstat;
ostat = ahc_get_transaction_status(scb);
if (ostat == CAM_REQ_INPROG)
ahc_set_transaction_status(scb,
status);
cstat = ahc_get_transaction_status(scb);
if (cstat != CAM_REQ_CMP)
ahc_freeze_scb(scb);
if ((scb->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB in Waiting List\n");
ahc_done(ahc, scb);
}
fallthrough;
case SEARCH_REMOVE:
next = ahc_rem_wscb(ahc, next, prev);
break;
case SEARCH_COUNT:
prev = next;
next = ahc_inb(ahc, SCB_NEXT);
break;
}
} else {
prev = next;
next = ahc_inb(ahc, SCB_NEXT);
}
}
ahc_outb(ahc, SCBPTR, curscbptr);
found += ahc_search_untagged_queues(ahc, /*ahc_io_ctx_t*/NULL, target,
channel, lun, status, action);
if (action == SEARCH_COMPLETE)
ahc_release_untagged_queues(ahc);
return (found);
}
int
ahc_search_untagged_queues(struct ahc_softc *ahc, ahc_io_ctx_t ctx,
int target, char channel, int lun, uint32_t status,
ahc_search_action action)
{
struct scb *scb;
int maxtarget;
int found;
int i;
if (action == SEARCH_COMPLETE) {
/*
* Don't attempt to run any queued untagged transactions
* until we are done with the abort process.
*/
ahc_freeze_untagged_queues(ahc);
}
found = 0;
i = 0;
if ((ahc->flags & AHC_SCB_BTT) == 0) {
maxtarget = 16;
if (target != CAM_TARGET_WILDCARD) {
i = target;
if (channel == 'B')
i += 8;
maxtarget = i + 1;
}
} else {
maxtarget = 0;
}
for (; i < maxtarget; i++) {
struct scb_tailq *untagged_q;
struct scb *next_scb;
untagged_q = &(ahc->untagged_queues[i]);
next_scb = TAILQ_FIRST(untagged_q);
while (next_scb != NULL) {
scb = next_scb;
next_scb = TAILQ_NEXT(scb, links.tqe);
/*
* The head of the list may be the currently
* active untagged command for a device.
* We're only searching for commands that
* have not been started. A transaction
* marked active but still in the qinfifo
* is removed by the qinfifo scanning code
* above.
*/
if ((scb->flags & SCB_ACTIVE) != 0)
continue;
if (ahc_match_scb(ahc, scb, target, channel, lun,
SCB_LIST_NULL, ROLE_INITIATOR) == 0
|| (ctx != NULL && ctx != scb->io_ctx))
continue;
/*
* We found an scb that needs to be acted on.
*/
found++;
switch (action) {
case SEARCH_COMPLETE:
{
cam_status ostat;
cam_status cstat;
ostat = ahc_get_transaction_status(scb);
if (ostat == CAM_REQ_INPROG)
ahc_set_transaction_status(scb, status);
cstat = ahc_get_transaction_status(scb);
if (cstat != CAM_REQ_CMP)
ahc_freeze_scb(scb);
if ((scb->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB in untaggedQ\n");
ahc_done(ahc, scb);
break;
}
case SEARCH_REMOVE:
scb->flags &= ~SCB_UNTAGGEDQ;
TAILQ_REMOVE(untagged_q, scb, links.tqe);
break;
case SEARCH_COUNT:
break;
}
}
}
if (action == SEARCH_COMPLETE)
ahc_release_untagged_queues(ahc);
return (found);
}
int
ahc_search_disc_list(struct ahc_softc *ahc, int target, char channel,
int lun, u_int tag, int stop_on_first, int remove,
int save_state)
{
struct scb *scbp;
u_int next;
u_int prev;
u_int count;
u_int active_scb;
count = 0;
next = ahc_inb(ahc, DISCONNECTED_SCBH);
prev = SCB_LIST_NULL;
if (save_state) {
/* restore this when we're done */
active_scb = ahc_inb(ahc, SCBPTR);
} else
/* Silence compiler */
active_scb = SCB_LIST_NULL;
while (next != SCB_LIST_NULL) {
u_int scb_index;
ahc_outb(ahc, SCBPTR, next);
scb_index = ahc_inb(ahc, SCB_TAG);
if (scb_index >= ahc->scb_data->numscbs) {
printk("Disconnected List inconsistency. "
"SCB index == %d, yet numscbs == %d.",
scb_index, ahc->scb_data->numscbs);
ahc_dump_card_state(ahc);
panic("for safety");
}
if (next == prev) {
panic("Disconnected List Loop. "
"cur SCBPTR == %x, prev SCBPTR == %x.",
next, prev);
}
scbp = ahc_lookup_scb(ahc, scb_index);
if (ahc_match_scb(ahc, scbp, target, channel, lun,
tag, ROLE_INITIATOR)) {
count++;
if (remove) {
next =
ahc_rem_scb_from_disc_list(ahc, prev, next);
} else {
prev = next;
next = ahc_inb(ahc, SCB_NEXT);
}
if (stop_on_first)
break;
} else {
prev = next;
next = ahc_inb(ahc, SCB_NEXT);
}
}
if (save_state)
ahc_outb(ahc, SCBPTR, active_scb);
return (count);
}
/*
* Remove an SCB from the on chip list of disconnected transactions.
* This is empty/unused if we are not performing SCB paging.
*/
static u_int
ahc_rem_scb_from_disc_list(struct ahc_softc *ahc, u_int prev, u_int scbptr)
{
u_int next;
ahc_outb(ahc, SCBPTR, scbptr);
next = ahc_inb(ahc, SCB_NEXT);
ahc_outb(ahc, SCB_CONTROL, 0);
ahc_add_curscb_to_free_list(ahc);
if (prev != SCB_LIST_NULL) {
ahc_outb(ahc, SCBPTR, prev);
ahc_outb(ahc, SCB_NEXT, next);
} else
ahc_outb(ahc, DISCONNECTED_SCBH, next);
return (next);
}
/*
* Add the SCB as selected by SCBPTR onto the on chip list of
* free hardware SCBs. This list is empty/unused if we are not
* performing SCB paging.
*/
static void
ahc_add_curscb_to_free_list(struct ahc_softc *ahc)
{
/*
* Invalidate the tag so that our abort
* routines don't think it's active.
*/
ahc_outb(ahc, SCB_TAG, SCB_LIST_NULL);
if ((ahc->flags & AHC_PAGESCBS) != 0) {
ahc_outb(ahc, SCB_NEXT, ahc_inb(ahc, FREE_SCBH));
ahc_outb(ahc, FREE_SCBH, ahc_inb(ahc, SCBPTR));
}
}
/*
* Manipulate the waiting for selection list and return the
* scb that follows the one that we remove.
*/
static u_int
ahc_rem_wscb(struct ahc_softc *ahc, u_int scbpos, u_int prev)
{
u_int curscb, next;
/*
* Select the SCB we want to abort and
* pull the next pointer out of it.
*/
curscb = ahc_inb(ahc, SCBPTR);
ahc_outb(ahc, SCBPTR, scbpos);
next = ahc_inb(ahc, SCB_NEXT);
/* Clear the necessary fields */
ahc_outb(ahc, SCB_CONTROL, 0);
ahc_add_curscb_to_free_list(ahc);
/* update the waiting list */
if (prev == SCB_LIST_NULL) {
/* First in the list */
ahc_outb(ahc, WAITING_SCBH, next);
/*
* Ensure we aren't attempting to perform
* selection for this entry.
*/
ahc_outb(ahc, SCSISEQ, (ahc_inb(ahc, SCSISEQ) & ~ENSELO));
} else {
/*
* Select the scb that pointed to us
* and update its next pointer.
*/
ahc_outb(ahc, SCBPTR, prev);
ahc_outb(ahc, SCB_NEXT, next);
}
/*
* Point us back at the original scb position.
*/
ahc_outb(ahc, SCBPTR, curscb);
return next;
}
/******************************** Error Handling ******************************/
/*
* Abort all SCBs that match the given description (target/channel/lun/tag),
* setting their status to the passed in status if the status has not already
* been modified from CAM_REQ_INPROG. This routine assumes that the sequencer
* is paused before it is called.
*/
static int
ahc_abort_scbs(struct ahc_softc *ahc, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status)
{
struct scb *scbp;
struct scb *scbp_next;
u_int active_scb;
int i, j;
int maxtarget;
int minlun;
int maxlun;
int found;
/*
* Don't attempt to run any queued untagged transactions
* until we are done with the abort process.
*/
ahc_freeze_untagged_queues(ahc);
/* restore this when we're done */
active_scb = ahc_inb(ahc, SCBPTR);
found = ahc_search_qinfifo(ahc, target, channel, lun, SCB_LIST_NULL,
role, CAM_REQUEUE_REQ, SEARCH_COMPLETE);
/*
* Clean out the busy target table for any untagged commands.
*/
i = 0;
maxtarget = 16;
if (target != CAM_TARGET_WILDCARD) {
i = target;
if (channel == 'B')
i += 8;
maxtarget = i + 1;
}
if (lun == CAM_LUN_WILDCARD) {
/*
* Unless we are using an SCB based
* busy targets table, there is only
* one table entry for all luns of
* a target.
*/
minlun = 0;
maxlun = 1;
if ((ahc->flags & AHC_SCB_BTT) != 0)
maxlun = AHC_NUM_LUNS;
} else {
minlun = lun;
maxlun = lun + 1;
}
if (role != ROLE_TARGET) {
for (;i < maxtarget; i++) {
for (j = minlun;j < maxlun; j++) {
u_int scbid;
u_int tcl;
tcl = BUILD_TCL(i << 4, j);
scbid = ahc_index_busy_tcl(ahc, tcl);
scbp = ahc_lookup_scb(ahc, scbid);
if (scbp == NULL
|| ahc_match_scb(ahc, scbp, target, channel,
lun, tag, role) == 0)
continue;
ahc_unbusy_tcl(ahc, BUILD_TCL(i << 4, j));
}
}
/*
* Go through the disconnected list and remove any entries we
* have queued for completion, 0'ing their control byte too.
* We save the active SCB and restore it ourselves, so there
* is no reason for this search to restore it too.
*/
ahc_search_disc_list(ahc, target, channel, lun, tag,
/*stop_on_first*/FALSE, /*remove*/TRUE,
/*save_state*/FALSE);
}
/*
* Go through the hardware SCB array looking for commands that
* were active but not on any list. In some cases, these remnants
* might not still have mappings in the scbindex array (e.g. unexpected
* bus free with the same scb queued for an abort). Don't hold this
* against them.
*/
for (i = 0; i < ahc->scb_data->maxhscbs; i++) {
u_int scbid;
ahc_outb(ahc, SCBPTR, i);
scbid = ahc_inb(ahc, SCB_TAG);
scbp = ahc_lookup_scb(ahc, scbid);
if ((scbp == NULL && scbid != SCB_LIST_NULL)
|| (scbp != NULL
&& ahc_match_scb(ahc, scbp, target, channel, lun, tag, role)))
ahc_add_curscb_to_free_list(ahc);
}
/*
* Go through the pending CCB list and look for
* commands for this target that are still active.
* These are other tagged commands that were
* disconnected when the reset occurred.
*/
scbp_next = LIST_FIRST(&ahc->pending_scbs);
while (scbp_next != NULL) {
scbp = scbp_next;
scbp_next = LIST_NEXT(scbp, pending_links);
if (ahc_match_scb(ahc, scbp, target, channel, lun, tag, role)) {
cam_status ostat;
ostat = ahc_get_transaction_status(scbp);
if (ostat == CAM_REQ_INPROG)
ahc_set_transaction_status(scbp, status);
if (ahc_get_transaction_status(scbp) != CAM_REQ_CMP)
ahc_freeze_scb(scbp);
if ((scbp->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB on pending list\n");
ahc_done(ahc, scbp);
found++;
}
}
ahc_outb(ahc, SCBPTR, active_scb);
ahc_platform_abort_scbs(ahc, target, channel, lun, tag, role, status);
ahc_release_untagged_queues(ahc);
return found;
}
static void
ahc_reset_current_bus(struct ahc_softc *ahc)
{
uint8_t scsiseq;
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) & ~ENSCSIRST);
scsiseq = ahc_inb(ahc, SCSISEQ);
ahc_outb(ahc, SCSISEQ, scsiseq | SCSIRSTO);
ahc_flush_device_writes(ahc);
ahc_delay(AHC_BUSRESET_DELAY);
/* Turn off the bus reset */
ahc_outb(ahc, SCSISEQ, scsiseq & ~SCSIRSTO);
ahc_clear_intstat(ahc);
/* Re-enable reset interrupts */
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) | ENSCSIRST);
}
int
ahc_reset_channel(struct ahc_softc *ahc, char channel, int initiate_reset)
{
struct ahc_devinfo devinfo;
u_int initiator, target, max_scsiid;
u_int sblkctl;
u_int scsiseq;
u_int simode1;
int found;
int restart_needed;
char cur_channel;
ahc->pending_device = NULL;
ahc_compile_devinfo(&devinfo,
CAM_TARGET_WILDCARD,
CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD,
channel, ROLE_UNKNOWN);
ahc_pause(ahc);
/* Make sure the sequencer is in a safe location. */
ahc_clear_critical_section(ahc);
/*
* Run our command complete fifos to ensure that we perform
* completion processing on any commands that 'completed'
* before the reset occurred.
*/
ahc_run_qoutfifo(ahc);
#ifdef AHC_TARGET_MODE
/*
* XXX - In Twin mode, the tqinfifo may have commands
* for an unaffected channel in it. However, if
* we have run out of ATIO resources to drain that
* queue, we may not get them all out here. Further,
* the blocked transactions for the reset channel
* should just be killed off, irrespecitve of whether
* we are blocked on ATIO resources. Write a routine
* to compact the tqinfifo appropriately.
*/
if ((ahc->flags & AHC_TARGETROLE) != 0) {
ahc_run_tqinfifo(ahc, /*paused*/TRUE);
}
#endif
/*
* Reset the bus if we are initiating this reset
*/
sblkctl = ahc_inb(ahc, SBLKCTL);
cur_channel = 'A';
if ((ahc->features & AHC_TWIN) != 0
&& ((sblkctl & SELBUSB) != 0))
cur_channel = 'B';
scsiseq = ahc_inb(ahc, SCSISEQ_TEMPLATE);
if (cur_channel != channel) {
/* Case 1: Command for another bus is active
* Stealthily reset the other bus without
* upsetting the current bus.
*/
ahc_outb(ahc, SBLKCTL, sblkctl ^ SELBUSB);
simode1 = ahc_inb(ahc, SIMODE1) & ~(ENBUSFREE|ENSCSIRST);
#ifdef AHC_TARGET_MODE
/*
* Bus resets clear ENSELI, so we cannot
* defer re-enabling bus reset interrupts
* if we are in target mode.
*/
if ((ahc->flags & AHC_TARGETROLE) != 0)
simode1 |= ENSCSIRST;
#endif
ahc_outb(ahc, SIMODE1, simode1);
if (initiate_reset)
ahc_reset_current_bus(ahc);
ahc_clear_intstat(ahc);
ahc_outb(ahc, SCSISEQ, scsiseq & (ENSELI|ENRSELI|ENAUTOATNP));
ahc_outb(ahc, SBLKCTL, sblkctl);
restart_needed = FALSE;
} else {
/* Case 2: A command from this bus is active or we're idle */
simode1 = ahc_inb(ahc, SIMODE1) & ~(ENBUSFREE|ENSCSIRST);
#ifdef AHC_TARGET_MODE
/*
* Bus resets clear ENSELI, so we cannot
* defer re-enabling bus reset interrupts
* if we are in target mode.
*/
if ((ahc->flags & AHC_TARGETROLE) != 0)
simode1 |= ENSCSIRST;
#endif
ahc_outb(ahc, SIMODE1, simode1);
if (initiate_reset)
ahc_reset_current_bus(ahc);
ahc_clear_intstat(ahc);
ahc_outb(ahc, SCSISEQ, scsiseq & (ENSELI|ENRSELI|ENAUTOATNP));
restart_needed = TRUE;
}
/*
* Clean up all the state information for the
* pending transactions on this bus.
*/
found = ahc_abort_scbs(ahc, CAM_TARGET_WILDCARD, channel,
CAM_LUN_WILDCARD, SCB_LIST_NULL,
ROLE_UNKNOWN, CAM_SCSI_BUS_RESET);
max_scsiid = (ahc->features & AHC_WIDE) ? 15 : 7;
#ifdef AHC_TARGET_MODE
/*
* Send an immediate notify ccb to all target more peripheral
* drivers affected by this action.
*/
for (target = 0; target <= max_scsiid; target++) {
struct ahc_tmode_tstate* tstate;
u_int lun;
tstate = ahc->enabled_targets[target];
if (tstate == NULL)
continue;
for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
struct ahc_tmode_lstate* lstate;
lstate = tstate->enabled_luns[lun];
if (lstate == NULL)
continue;
ahc_queue_lstate_event(ahc, lstate, CAM_TARGET_WILDCARD,
EVENT_TYPE_BUS_RESET, /*arg*/0);
ahc_send_lstate_events(ahc, lstate);
}
}
#endif
/* Notify the XPT that a bus reset occurred */
ahc_send_async(ahc, devinfo.channel, CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD, AC_BUS_RESET);
/*
* Revert to async/narrow transfers until we renegotiate.
*/
for (target = 0; target <= max_scsiid; target++) {
if (ahc->enabled_targets[target] == NULL)
continue;
for (initiator = 0; initiator <= max_scsiid; initiator++) {
struct ahc_devinfo devinfo;
ahc_compile_devinfo(&devinfo, target, initiator,
CAM_LUN_WILDCARD,
channel, ROLE_UNKNOWN);
ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_CUR, /*paused*/TRUE);
ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL,
/*period*/0, /*offset*/0,
/*ppr_options*/0, AHC_TRANS_CUR,
/*paused*/TRUE);
}
}
if (restart_needed)
ahc_restart(ahc);
else
ahc_unpause(ahc);
return found;
}
/***************************** Residual Processing ****************************/
/*
* Calculate the residual for a just completed SCB.
*/
static void
ahc_calc_residual(struct ahc_softc *ahc, struct scb *scb)
{
struct hardware_scb *hscb;
struct status_pkt *spkt;
uint32_t sgptr;
uint32_t resid_sgptr;
uint32_t resid;
/*
* 5 cases.
* 1) No residual.
* SG_RESID_VALID clear in sgptr.
* 2) Transferless command
* 3) Never performed any transfers.
* sgptr has SG_FULL_RESID set.
* 4) No residual but target did not
* save data pointers after the
* last transfer, so sgptr was
* never updated.
* 5) We have a partial residual.
* Use residual_sgptr to determine
* where we are.
*/
hscb = scb->hscb;
sgptr = ahc_le32toh(hscb->sgptr);
if ((sgptr & SG_RESID_VALID) == 0)
/* Case 1 */
return;
sgptr &= ~SG_RESID_VALID;
if ((sgptr & SG_LIST_NULL) != 0)
/* Case 2 */
return;
spkt = &hscb->shared_data.status;
resid_sgptr = ahc_le32toh(spkt->residual_sg_ptr);
if ((sgptr & SG_FULL_RESID) != 0) {
/* Case 3 */
resid = ahc_get_transfer_length(scb);
} else if ((resid_sgptr & SG_LIST_NULL) != 0) {
/* Case 4 */
return;
} else if ((resid_sgptr & ~SG_PTR_MASK) != 0) {
panic("Bogus resid sgptr value 0x%x\n", resid_sgptr);
} else {
struct ahc_dma_seg *sg;
/*
* Remainder of the SG where the transfer
* stopped.
*/
resid = ahc_le32toh(spkt->residual_datacnt) & AHC_SG_LEN_MASK;
sg = ahc_sg_bus_to_virt(scb, resid_sgptr & SG_PTR_MASK);
/* The residual sg_ptr always points to the next sg */
sg--;
/*
* Add up the contents of all residual
* SG segments that are after the SG where
* the transfer stopped.
*/
while ((ahc_le32toh(sg->len) & AHC_DMA_LAST_SEG) == 0) {
sg++;
resid += ahc_le32toh(sg->len) & AHC_SG_LEN_MASK;
}
}
if ((scb->flags & SCB_SENSE) == 0)
ahc_set_residual(scb, resid);
else
ahc_set_sense_residual(scb, resid);
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MISC) != 0) {
ahc_print_path(ahc, scb);
printk("Handled %sResidual of %d bytes\n",
(scb->flags & SCB_SENSE) ? "Sense " : "", resid);
}
#endif
}
/******************************* Target Mode **********************************/
#ifdef AHC_TARGET_MODE
/*
* Add a target mode event to this lun's queue
*/
static void
ahc_queue_lstate_event(struct ahc_softc *ahc, struct ahc_tmode_lstate *lstate,
u_int initiator_id, u_int event_type, u_int event_arg)
{
struct ahc_tmode_event *event;
int pending;
xpt_freeze_devq(lstate->path, /*count*/1);
if (lstate->event_w_idx >= lstate->event_r_idx)
pending = lstate->event_w_idx - lstate->event_r_idx;
else
pending = AHC_TMODE_EVENT_BUFFER_SIZE + 1
- (lstate->event_r_idx - lstate->event_w_idx);
if (event_type == EVENT_TYPE_BUS_RESET
|| event_type == TARGET_RESET) {
/*
* Any earlier events are irrelevant, so reset our buffer.
* This has the effect of allowing us to deal with reset
* floods (an external device holding down the reset line)
* without losing the event that is really interesting.
*/
lstate->event_r_idx = 0;
lstate->event_w_idx = 0;
xpt_release_devq(lstate->path, pending, /*runqueue*/FALSE);
}
if (pending == AHC_TMODE_EVENT_BUFFER_SIZE) {
xpt_print_path(lstate->path);
printk("immediate event %x:%x lost\n",
lstate->event_buffer[lstate->event_r_idx].event_type,
lstate->event_buffer[lstate->event_r_idx].event_arg);
lstate->event_r_idx++;
if (lstate->event_r_idx == AHC_TMODE_EVENT_BUFFER_SIZE)
lstate->event_r_idx = 0;
xpt_release_devq(lstate->path, /*count*/1, /*runqueue*/FALSE);
}
event = &lstate->event_buffer[lstate->event_w_idx];
event->initiator_id = initiator_id;
event->event_type = event_type;
event->event_arg = event_arg;
lstate->event_w_idx++;
if (lstate->event_w_idx == AHC_TMODE_EVENT_BUFFER_SIZE)
lstate->event_w_idx = 0;
}
/*
* Send any target mode events queued up waiting
* for immediate notify resources.
*/
void
ahc_send_lstate_events(struct ahc_softc *ahc, struct ahc_tmode_lstate *lstate)
{
struct ccb_hdr *ccbh;
struct ccb_immed_notify *inot;
while (lstate->event_r_idx != lstate->event_w_idx
&& (ccbh = SLIST_FIRST(&lstate->immed_notifies)) != NULL) {
struct ahc_tmode_event *event;
event = &lstate->event_buffer[lstate->event_r_idx];
SLIST_REMOVE_HEAD(&lstate->immed_notifies, sim_links.sle);
inot = (struct ccb_immed_notify *)ccbh;
switch (event->event_type) {
case EVENT_TYPE_BUS_RESET:
ccbh->status = CAM_SCSI_BUS_RESET|CAM_DEV_QFRZN;
break;
default:
ccbh->status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
inot->message_args[0] = event->event_type;
inot->message_args[1] = event->event_arg;
break;
}
inot->initiator_id = event->initiator_id;
inot->sense_len = 0;
xpt_done((union ccb *)inot);
lstate->event_r_idx++;
if (lstate->event_r_idx == AHC_TMODE_EVENT_BUFFER_SIZE)
lstate->event_r_idx = 0;
}
}
#endif
/******************** Sequencer Program Patching/Download *********************/
#ifdef AHC_DUMP_SEQ
void
ahc_dumpseq(struct ahc_softc* ahc)
{
int i;
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS|FASTMODE|LOADRAM);
ahc_outb(ahc, SEQADDR0, 0);
ahc_outb(ahc, SEQADDR1, 0);
for (i = 0; i < ahc->instruction_ram_size; i++) {
uint8_t ins_bytes[4];
ahc_insb(ahc, SEQRAM, ins_bytes, 4);
printk("0x%08x\n", ins_bytes[0] << 24
| ins_bytes[1] << 16
| ins_bytes[2] << 8
| ins_bytes[3]);
}
}
#endif
static int
ahc_loadseq(struct ahc_softc *ahc)
{
struct cs cs_table[NUM_CRITICAL_SECTIONS];
u_int begin_set[NUM_CRITICAL_SECTIONS];
u_int end_set[NUM_CRITICAL_SECTIONS];
const struct patch *cur_patch;
u_int cs_count;
u_int cur_cs;
u_int i;
u_int skip_addr;
u_int sg_prefetch_cnt;
int downloaded;
uint8_t download_consts[7];
/*
* Start out with 0 critical sections
* that apply to this firmware load.
*/
cs_count = 0;
cur_cs = 0;
memset(begin_set, 0, sizeof(begin_set));
memset(end_set, 0, sizeof(end_set));
/* Setup downloadable constant table */
download_consts[QOUTFIFO_OFFSET] = 0;
if (ahc->targetcmds != NULL)
download_consts[QOUTFIFO_OFFSET] += 32;
download_consts[QINFIFO_OFFSET] = download_consts[QOUTFIFO_OFFSET] + 1;
download_consts[CACHESIZE_MASK] = ahc->pci_cachesize - 1;
download_consts[INVERTED_CACHESIZE_MASK] = ~(ahc->pci_cachesize - 1);
sg_prefetch_cnt = ahc->pci_cachesize;
if (sg_prefetch_cnt < (2 * sizeof(struct ahc_dma_seg)))
sg_prefetch_cnt = 2 * sizeof(struct ahc_dma_seg);
download_consts[SG_PREFETCH_CNT] = sg_prefetch_cnt;
download_consts[SG_PREFETCH_ALIGN_MASK] = ~(sg_prefetch_cnt - 1);
download_consts[SG_PREFETCH_ADDR_MASK] = (sg_prefetch_cnt - 1);
cur_patch = patches;
downloaded = 0;
skip_addr = 0;
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS|FASTMODE|LOADRAM);
ahc_outb(ahc, SEQADDR0, 0);
ahc_outb(ahc, SEQADDR1, 0);
for (i = 0; i < sizeof(seqprog)/4; i++) {
if (ahc_check_patch(ahc, &cur_patch, i, &skip_addr) == 0) {
/*
* Don't download this instruction as it
* is in a patch that was removed.
*/
continue;
}
if (downloaded == ahc->instruction_ram_size) {
/*
* We're about to exceed the instruction
* storage capacity for this chip. Fail
* the load.
*/
printk("\n%s: Program too large for instruction memory "
"size of %d!\n", ahc_name(ahc),
ahc->instruction_ram_size);
return (ENOMEM);
}
/*
* Move through the CS table until we find a CS
* that might apply to this instruction.
*/
for (; cur_cs < NUM_CRITICAL_SECTIONS; cur_cs++) {
if (critical_sections[cur_cs].end <= i) {
if (begin_set[cs_count] == TRUE
&& end_set[cs_count] == FALSE) {
cs_table[cs_count].end = downloaded;
end_set[cs_count] = TRUE;
cs_count++;
}
continue;
}
if (critical_sections[cur_cs].begin <= i
&& begin_set[cs_count] == FALSE) {
cs_table[cs_count].begin = downloaded;
begin_set[cs_count] = TRUE;
}
break;
}
ahc_download_instr(ahc, i, download_consts);
downloaded++;
}
ahc->num_critical_sections = cs_count;
if (cs_count != 0) {
cs_count *= sizeof(struct cs);
ahc->critical_sections = kmemdup(cs_table, cs_count, GFP_ATOMIC);
if (ahc->critical_sections == NULL)
panic("ahc_loadseq: Could not malloc");
}
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS|FASTMODE);
if (bootverbose) {
printk(" %d instructions downloaded\n", downloaded);
printk("%s: Features 0x%x, Bugs 0x%x, Flags 0x%x\n",
ahc_name(ahc), ahc->features, ahc->bugs, ahc->flags);
}
return (0);
}
static int
ahc_check_patch(struct ahc_softc *ahc, const struct patch **start_patch,
u_int start_instr, u_int *skip_addr)
{
const struct patch *cur_patch;
const struct patch *last_patch;
u_int num_patches;
num_patches = ARRAY_SIZE(patches);
last_patch = &patches[num_patches];
cur_patch = *start_patch;
while (cur_patch < last_patch && start_instr == cur_patch->begin) {
if (cur_patch->patch_func(ahc) == 0) {
/* Start rejecting code */
*skip_addr = start_instr + cur_patch->skip_instr;
cur_patch += cur_patch->skip_patch;
} else {
/* Accepted this patch. Advance to the next
* one and wait for our intruction pointer to
* hit this point.
*/
cur_patch++;
}
}
*start_patch = cur_patch;
if (start_instr < *skip_addr)
/* Still skipping */
return (0);
return (1);
}
static void
ahc_download_instr(struct ahc_softc *ahc, u_int instrptr, uint8_t *dconsts)
{
union ins_formats instr;
struct ins_format1 *fmt1_ins;
struct ins_format3 *fmt3_ins;
u_int opcode;
/*
* The firmware is always compiled into a little endian format.
*/
instr.integer = ahc_le32toh(*(uint32_t*)&seqprog[instrptr * 4]);
fmt1_ins = &instr.format1;
fmt3_ins = NULL;
/* Pull the opcode */
opcode = instr.format1.opcode;
switch (opcode) {
case AIC_OP_JMP:
case AIC_OP_JC:
case AIC_OP_JNC:
case AIC_OP_CALL:
case AIC_OP_JNE:
case AIC_OP_JNZ:
case AIC_OP_JE:
case AIC_OP_JZ:
{
const struct patch *cur_patch;
int address_offset;
u_int address;
u_int skip_addr;
u_int i;
fmt3_ins = &instr.format3;
address_offset = 0;
address = fmt3_ins->address;
cur_patch = patches;
skip_addr = 0;
for (i = 0; i < address;) {
ahc_check_patch(ahc, &cur_patch, i, &skip_addr);
if (skip_addr > i) {
int end_addr;
end_addr = min(address, skip_addr);
address_offset += end_addr - i;
i = skip_addr;
} else {
i++;
}
}
address -= address_offset;
fmt3_ins->address = address;
}
fallthrough;
case AIC_OP_OR:
case AIC_OP_AND:
case AIC_OP_XOR:
case AIC_OP_ADD:
case AIC_OP_ADC:
case AIC_OP_BMOV:
if (fmt1_ins->parity != 0) {
fmt1_ins->immediate = dconsts[fmt1_ins->immediate];
}
fmt1_ins->parity = 0;
if ((ahc->features & AHC_CMD_CHAN) == 0
&& opcode == AIC_OP_BMOV) {
/*
* Block move was added at the same time
* as the command channel. Verify that
* this is only a move of a single element
* and convert the BMOV to a MOV
* (AND with an immediate of FF).
*/
if (fmt1_ins->immediate != 1)
panic("%s: BMOV not supported\n",
ahc_name(ahc));
fmt1_ins->opcode = AIC_OP_AND;
fmt1_ins->immediate = 0xff;
}
fallthrough;
case AIC_OP_ROL:
if ((ahc->features & AHC_ULTRA2) != 0) {
int i, count;
/* Calculate odd parity for the instruction */
for (i = 0, count = 0; i < 31; i++) {
uint32_t mask;
mask = 0x01 << i;
if ((instr.integer & mask) != 0)
count++;
}
if ((count & 0x01) == 0)
instr.format1.parity = 1;
} else {
/* Compress the instruction for older sequencers */
if (fmt3_ins != NULL) {
instr.integer =
fmt3_ins->immediate
| (fmt3_ins->source << 8)
| (fmt3_ins->address << 16)
| (fmt3_ins->opcode << 25);
} else {
instr.integer =
fmt1_ins->immediate
| (fmt1_ins->source << 8)
| (fmt1_ins->destination << 16)
| (fmt1_ins->ret << 24)
| (fmt1_ins->opcode << 25);
}
}
/* The sequencer is a little endian cpu */
instr.integer = ahc_htole32(instr.integer);
ahc_outsb(ahc, SEQRAM, instr.bytes, 4);
break;
default:
panic("Unknown opcode encountered in seq program");
break;
}
}
int
ahc_print_register(const ahc_reg_parse_entry_t *table, u_int num_entries,
const char *name, u_int address, u_int value,
u_int *cur_column, u_int wrap_point)
{
int printed;
u_int printed_mask;
if (cur_column != NULL && *cur_column >= wrap_point) {
printk("\n");
*cur_column = 0;
}
printed = printk("%s[0x%x]", name, value);
if (table == NULL) {
printed += printk(" ");
*cur_column += printed;
return (printed);
}
printed_mask = 0;
while (printed_mask != 0xFF) {
int entry;
for (entry = 0; entry < num_entries; entry++) {
if (((value & table[entry].mask)
!= table[entry].value)
|| ((printed_mask & table[entry].mask)
== table[entry].mask))
continue;
printed += printk("%s%s",
printed_mask == 0 ? ":(" : "|",
table[entry].name);
printed_mask |= table[entry].mask;
break;
}
if (entry >= num_entries)
break;
}
if (printed_mask != 0)
printed += printk(") ");
else
printed += printk(" ");
if (cur_column != NULL)
*cur_column += printed;
return (printed);
}
void
ahc_dump_card_state(struct ahc_softc *ahc)
{
struct scb *scb;
struct scb_tailq *untagged_q;
u_int cur_col;
int paused;
int target;
int maxtarget;
int i;
uint8_t last_phase;
uint8_t qinpos;
uint8_t qintail;
uint8_t qoutpos;
uint8_t scb_index;
uint8_t saved_scbptr;
if (ahc_is_paused(ahc)) {
paused = 1;
} else {
paused = 0;
ahc_pause(ahc);
}
saved_scbptr = ahc_inb(ahc, SCBPTR);
last_phase = ahc_inb(ahc, LASTPHASE);
printk(">>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<\n"
"%s: Dumping Card State %s, at SEQADDR 0x%x\n",
ahc_name(ahc), ahc_lookup_phase_entry(last_phase)->phasemsg,
ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
if (paused)
printk("Card was paused\n");
printk("ACCUM = 0x%x, SINDEX = 0x%x, DINDEX = 0x%x, ARG_2 = 0x%x\n",
ahc_inb(ahc, ACCUM), ahc_inb(ahc, SINDEX), ahc_inb(ahc, DINDEX),
ahc_inb(ahc, ARG_2));
printk("HCNT = 0x%x SCBPTR = 0x%x\n", ahc_inb(ahc, HCNT),
ahc_inb(ahc, SCBPTR));
cur_col = 0;
if ((ahc->features & AHC_DT) != 0)
ahc_scsiphase_print(ahc_inb(ahc, SCSIPHASE), &cur_col, 50);
ahc_scsisigi_print(ahc_inb(ahc, SCSISIGI), &cur_col, 50);
ahc_error_print(ahc_inb(ahc, ERROR), &cur_col, 50);
ahc_scsibusl_print(ahc_inb(ahc, SCSIBUSL), &cur_col, 50);
ahc_lastphase_print(ahc_inb(ahc, LASTPHASE), &cur_col, 50);
ahc_scsiseq_print(ahc_inb(ahc, SCSISEQ), &cur_col, 50);
ahc_sblkctl_print(ahc_inb(ahc, SBLKCTL), &cur_col, 50);
ahc_scsirate_print(ahc_inb(ahc, SCSIRATE), &cur_col, 50);
ahc_seqctl_print(ahc_inb(ahc, SEQCTL), &cur_col, 50);
ahc_seq_flags_print(ahc_inb(ahc, SEQ_FLAGS), &cur_col, 50);
ahc_sstat0_print(ahc_inb(ahc, SSTAT0), &cur_col, 50);
ahc_sstat1_print(ahc_inb(ahc, SSTAT1), &cur_col, 50);
ahc_sstat2_print(ahc_inb(ahc, SSTAT2), &cur_col, 50);
ahc_sstat3_print(ahc_inb(ahc, SSTAT3), &cur_col, 50);
ahc_simode0_print(ahc_inb(ahc, SIMODE0), &cur_col, 50);
ahc_simode1_print(ahc_inb(ahc, SIMODE1), &cur_col, 50);
ahc_sxfrctl0_print(ahc_inb(ahc, SXFRCTL0), &cur_col, 50);
ahc_dfcntrl_print(ahc_inb(ahc, DFCNTRL), &cur_col, 50);
ahc_dfstatus_print(ahc_inb(ahc, DFSTATUS), &cur_col, 50);
if (cur_col != 0)
printk("\n");
printk("STACK:");
for (i = 0; i < STACK_SIZE; i++)
printk(" 0x%x", ahc_inb(ahc, STACK)|(ahc_inb(ahc, STACK) << 8));
printk("\nSCB count = %d\n", ahc->scb_data->numscbs);
printk("Kernel NEXTQSCB = %d\n", ahc->next_queued_scb->hscb->tag);
printk("Card NEXTQSCB = %d\n", ahc_inb(ahc, NEXT_QUEUED_SCB));
/* QINFIFO */
printk("QINFIFO entries: ");
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
qinpos = ahc_inb(ahc, SNSCB_QOFF);
ahc_outb(ahc, SNSCB_QOFF, qinpos);
} else
qinpos = ahc_inb(ahc, QINPOS);
qintail = ahc->qinfifonext;
while (qinpos != qintail) {
printk("%d ", ahc->qinfifo[qinpos]);
qinpos++;
}
printk("\n");
printk("Waiting Queue entries: ");
scb_index = ahc_inb(ahc, WAITING_SCBH);
i = 0;
while (scb_index != SCB_LIST_NULL && i++ < 256) {
ahc_outb(ahc, SCBPTR, scb_index);
printk("%d:%d ", scb_index, ahc_inb(ahc, SCB_TAG));
scb_index = ahc_inb(ahc, SCB_NEXT);
}
printk("\n");
printk("Disconnected Queue entries: ");
scb_index = ahc_inb(ahc, DISCONNECTED_SCBH);
i = 0;
while (scb_index != SCB_LIST_NULL && i++ < 256) {
ahc_outb(ahc, SCBPTR, scb_index);
printk("%d:%d ", scb_index, ahc_inb(ahc, SCB_TAG));
scb_index = ahc_inb(ahc, SCB_NEXT);
}
printk("\n");
ahc_sync_qoutfifo(ahc, BUS_DMASYNC_POSTREAD);
printk("QOUTFIFO entries: ");
qoutpos = ahc->qoutfifonext;
i = 0;
while (ahc->qoutfifo[qoutpos] != SCB_LIST_NULL && i++ < 256) {
printk("%d ", ahc->qoutfifo[qoutpos]);
qoutpos++;
}
printk("\n");
printk("Sequencer Free SCB List: ");
scb_index = ahc_inb(ahc, FREE_SCBH);
i = 0;
while (scb_index != SCB_LIST_NULL && i++ < 256) {
ahc_outb(ahc, SCBPTR, scb_index);
printk("%d ", scb_index);
scb_index = ahc_inb(ahc, SCB_NEXT);
}
printk("\n");
printk("Sequencer SCB Info: ");
for (i = 0; i < ahc->scb_data->maxhscbs; i++) {
ahc_outb(ahc, SCBPTR, i);
cur_col = printk("\n%3d ", i);
ahc_scb_control_print(ahc_inb(ahc, SCB_CONTROL), &cur_col, 60);
ahc_scb_scsiid_print(ahc_inb(ahc, SCB_SCSIID), &cur_col, 60);
ahc_scb_lun_print(ahc_inb(ahc, SCB_LUN), &cur_col, 60);
ahc_scb_tag_print(ahc_inb(ahc, SCB_TAG), &cur_col, 60);
}
printk("\n");
printk("Pending list: ");
i = 0;
LIST_FOREACH(scb, &ahc->pending_scbs, pending_links) {
if (i++ > 256)
break;
cur_col = printk("\n%3d ", scb->hscb->tag);
ahc_scb_control_print(scb->hscb->control, &cur_col, 60);
ahc_scb_scsiid_print(scb->hscb->scsiid, &cur_col, 60);
ahc_scb_lun_print(scb->hscb->lun, &cur_col, 60);
if ((ahc->flags & AHC_PAGESCBS) == 0) {
ahc_outb(ahc, SCBPTR, scb->hscb->tag);
printk("(");
ahc_scb_control_print(ahc_inb(ahc, SCB_CONTROL),
&cur_col, 60);
ahc_scb_tag_print(ahc_inb(ahc, SCB_TAG), &cur_col, 60);
printk(")");
}
}
printk("\n");
printk("Kernel Free SCB list: ");
i = 0;
SLIST_FOREACH(scb, &ahc->scb_data->free_scbs, links.sle) {
if (i++ > 256)
break;
printk("%d ", scb->hscb->tag);
}
printk("\n");
maxtarget = (ahc->features & (AHC_WIDE|AHC_TWIN)) ? 15 : 7;
for (target = 0; target <= maxtarget; target++) {
untagged_q = &ahc->untagged_queues[target];
if (TAILQ_FIRST(untagged_q) == NULL)
continue;
printk("Untagged Q(%d): ", target);
i = 0;
TAILQ_FOREACH(scb, untagged_q, links.tqe) {
if (i++ > 256)
break;
printk("%d ", scb->hscb->tag);
}
printk("\n");
}
printk("\n<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>\n");
ahc_outb(ahc, SCBPTR, saved_scbptr);
if (paused == 0)
ahc_unpause(ahc);
}
/************************* Target Mode ****************************************/
#ifdef AHC_TARGET_MODE
cam_status
ahc_find_tmode_devs(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb,
struct ahc_tmode_tstate **tstate,
struct ahc_tmode_lstate **lstate,
int notfound_failure)
{
if ((ahc->features & AHC_TARGETMODE) == 0)
return (CAM_REQ_INVALID);
/*
* Handle the 'black hole' device that sucks up
* requests to unattached luns on enabled targets.
*/
if (ccb->ccb_h.target_id == CAM_TARGET_WILDCARD
&& ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
*tstate = NULL;
*lstate = ahc->black_hole;
} else {
u_int max_id;
max_id = (ahc->features & AHC_WIDE) ? 16 : 8;
if (ccb->ccb_h.target_id >= max_id)
return (CAM_TID_INVALID);
if (ccb->ccb_h.target_lun >= AHC_NUM_LUNS)
return (CAM_LUN_INVALID);
*tstate = ahc->enabled_targets[ccb->ccb_h.target_id];
*lstate = NULL;
if (*tstate != NULL)
*lstate =
(*tstate)->enabled_luns[ccb->ccb_h.target_lun];
}
if (notfound_failure != 0 && *lstate == NULL)
return (CAM_PATH_INVALID);
return (CAM_REQ_CMP);
}
void
ahc_handle_en_lun(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
{
struct ahc_tmode_tstate *tstate;
struct ahc_tmode_lstate *lstate;
struct ccb_en_lun *cel;
cam_status status;
u_long s;
u_int target;
u_int lun;
u_int target_mask;
u_int our_id;
int error;
char channel;
status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, &lstate,
/*notfound_failure*/FALSE);
if (status != CAM_REQ_CMP) {
ccb->ccb_h.status = status;
return;
}
if (cam_sim_bus(sim) == 0)
our_id = ahc->our_id;
else
our_id = ahc->our_id_b;
if (ccb->ccb_h.target_id != our_id) {
/*
* our_id represents our initiator ID, or
* the ID of the first target to have an
* enabled lun in target mode. There are
* two cases that may preclude enabling a
* target id other than our_id.
*
* o our_id is for an active initiator role.
* Since the hardware does not support
* reselections to the initiator role at
* anything other than our_id, and our_id
* is used by the hardware to indicate the
* ID to use for both select-out and
* reselect-out operations, the only target
* ID we can support in this mode is our_id.
*
* o The MULTARGID feature is not available and
* a previous target mode ID has been enabled.
*/
if ((ahc->features & AHC_MULTIROLE) != 0) {
if ((ahc->features & AHC_MULTI_TID) != 0
&& (ahc->flags & AHC_INITIATORROLE) != 0) {
/*
* Only allow additional targets if
* the initiator role is disabled.
* The hardware cannot handle a re-select-in
* on the initiator id during a re-select-out
* on a different target id.
*/
status = CAM_TID_INVALID;
} else if ((ahc->flags & AHC_INITIATORROLE) != 0
|| ahc->enabled_luns > 0) {
/*
* Only allow our target id to change
* if the initiator role is not configured
* and there are no enabled luns which
* are attached to the currently registered
* scsi id.
*/
status = CAM_TID_INVALID;
}
} else if ((ahc->features & AHC_MULTI_TID) == 0
&& ahc->enabled_luns > 0) {
status = CAM_TID_INVALID;
}
}
if (status != CAM_REQ_CMP) {
ccb->ccb_h.status = status;
return;
}
/*
* We now have an id that is valid.
* If we aren't in target mode, switch modes.
*/
if ((ahc->flags & AHC_TARGETROLE) == 0
&& ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
u_long s;
ahc_flag saved_flags;
printk("Configuring Target Mode\n");
ahc_lock(ahc, &s);
if (LIST_FIRST(&ahc->pending_scbs) != NULL) {
ccb->ccb_h.status = CAM_BUSY;
ahc_unlock(ahc, &s);
return;
}
saved_flags = ahc->flags;
ahc->flags |= AHC_TARGETROLE;
if ((ahc->features & AHC_MULTIROLE) == 0)
ahc->flags &= ~AHC_INITIATORROLE;
ahc_pause(ahc);
error = ahc_loadseq(ahc);
if (error != 0) {
/*
* Restore original configuration and notify
* the caller that we cannot support target mode.
* Since the adapter started out in this
* configuration, the firmware load will succeed,
* so there is no point in checking ahc_loadseq's
* return value.
*/
ahc->flags = saved_flags;
(void)ahc_loadseq(ahc);
ahc_restart(ahc);
ahc_unlock(ahc, &s);
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
return;
}
ahc_restart(ahc);
ahc_unlock(ahc, &s);
}
cel = &ccb->cel;
target = ccb->ccb_h.target_id;
lun = ccb->ccb_h.target_lun;
channel = SIM_CHANNEL(ahc, sim);
target_mask = 0x01 << target;
if (channel == 'B')
target_mask <<= 8;
if (cel->enable != 0) {
u_int scsiseq;
/* Are we already enabled?? */
if (lstate != NULL) {
xpt_print_path(ccb->ccb_h.path);
printk("Lun already enabled\n");
ccb->ccb_h.status = CAM_LUN_ALRDY_ENA;
return;
}
if (cel->grp6_len != 0
|| cel->grp7_len != 0) {
/*
* Don't (yet?) support vendor
* specific commands.
*/
ccb->ccb_h.status = CAM_REQ_INVALID;
printk("Non-zero Group Codes\n");
return;
}
/*
* Seems to be okay.
* Setup our data structures.
*/
if (target != CAM_TARGET_WILDCARD && tstate == NULL) {
tstate = ahc_alloc_tstate(ahc, target, channel);
if (tstate == NULL) {
xpt_print_path(ccb->ccb_h.path);
printk("Couldn't allocate tstate\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
}
lstate = kzalloc(sizeof(*lstate), GFP_ATOMIC);
if (lstate == NULL) {
xpt_print_path(ccb->ccb_h.path);
printk("Couldn't allocate lstate\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
status = xpt_create_path(&lstate->path, /*periph*/NULL,
xpt_path_path_id(ccb->ccb_h.path),
xpt_path_target_id(ccb->ccb_h.path),
xpt_path_lun_id(ccb->ccb_h.path));
if (status != CAM_REQ_CMP) {
kfree(lstate);
xpt_print_path(ccb->ccb_h.path);
printk("Couldn't allocate path\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
SLIST_INIT(&lstate->accept_tios);
SLIST_INIT(&lstate->immed_notifies);
ahc_lock(ahc, &s);
ahc_pause(ahc);
if (target != CAM_TARGET_WILDCARD) {
tstate->enabled_luns[lun] = lstate;
ahc->enabled_luns++;
if ((ahc->features & AHC_MULTI_TID) != 0) {
u_int targid_mask;
targid_mask = ahc_inb(ahc, TARGID)
| (ahc_inb(ahc, TARGID + 1) << 8);
targid_mask |= target_mask;
ahc_outb(ahc, TARGID, targid_mask);
ahc_outb(ahc, TARGID+1, (targid_mask >> 8));
ahc_update_scsiid(ahc, targid_mask);
} else {
u_int our_id;
char channel;
channel = SIM_CHANNEL(ahc, sim);
our_id = SIM_SCSI_ID(ahc, sim);
/*
* This can only happen if selections
* are not enabled
*/
if (target != our_id) {
u_int sblkctl;
char cur_channel;
int swap;
sblkctl = ahc_inb(ahc, SBLKCTL);
cur_channel = (sblkctl & SELBUSB)
? 'B' : 'A';
if ((ahc->features & AHC_TWIN) == 0)
cur_channel = 'A';
swap = cur_channel != channel;
if (channel == 'A')
ahc->our_id = target;
else
ahc->our_id_b = target;
if (swap)
ahc_outb(ahc, SBLKCTL,
sblkctl ^ SELBUSB);
ahc_outb(ahc, SCSIID, target);
if (swap)
ahc_outb(ahc, SBLKCTL, sblkctl);
}
}
} else
ahc->black_hole = lstate;
/* Allow select-in operations */
if (ahc->black_hole != NULL && ahc->enabled_luns > 0) {
scsiseq = ahc_inb(ahc, SCSISEQ_TEMPLATE);
scsiseq |= ENSELI;
ahc_outb(ahc, SCSISEQ_TEMPLATE, scsiseq);
scsiseq = ahc_inb(ahc, SCSISEQ);
scsiseq |= ENSELI;
ahc_outb(ahc, SCSISEQ, scsiseq);
}
ahc_unpause(ahc);
ahc_unlock(ahc, &s);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_print_path(ccb->ccb_h.path);
printk("Lun now enabled for target mode\n");
} else {
struct scb *scb;
int i, empty;
if (lstate == NULL) {
ccb->ccb_h.status = CAM_LUN_INVALID;
return;
}
ahc_lock(ahc, &s);
ccb->ccb_h.status = CAM_REQ_CMP;
LIST_FOREACH(scb, &ahc->pending_scbs, pending_links) {
struct ccb_hdr *ccbh;
ccbh = &scb->io_ctx->ccb_h;
if (ccbh->func_code == XPT_CONT_TARGET_IO
&& !xpt_path_comp(ccbh->path, ccb->ccb_h.path)){
printk("CTIO pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
ahc_unlock(ahc, &s);
return;
}
}
if (SLIST_FIRST(&lstate->accept_tios) != NULL) {
printk("ATIOs pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
}
if (SLIST_FIRST(&lstate->immed_notifies) != NULL) {
printk("INOTs pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
}
if (ccb->ccb_h.status != CAM_REQ_CMP) {
ahc_unlock(ahc, &s);
return;
}
xpt_print_path(ccb->ccb_h.path);
printk("Target mode disabled\n");
xpt_free_path(lstate->path);
kfree(lstate);
ahc_pause(ahc);
/* Can we clean up the target too? */
if (target != CAM_TARGET_WILDCARD) {
tstate->enabled_luns[lun] = NULL;
ahc->enabled_luns--;
for (empty = 1, i = 0; i < 8; i++)
if (tstate->enabled_luns[i] != NULL) {
empty = 0;
break;
}
if (empty) {
ahc_free_tstate(ahc, target, channel,
/*force*/FALSE);
if (ahc->features & AHC_MULTI_TID) {
u_int targid_mask;
targid_mask = ahc_inb(ahc, TARGID)
| (ahc_inb(ahc, TARGID + 1)
<< 8);
targid_mask &= ~target_mask;
ahc_outb(ahc, TARGID, targid_mask);
ahc_outb(ahc, TARGID+1,
(targid_mask >> 8));
ahc_update_scsiid(ahc, targid_mask);
}
}
} else {
ahc->black_hole = NULL;
/*
* We can't allow selections without
* our black hole device.
*/
empty = TRUE;
}
if (ahc->enabled_luns == 0) {
/* Disallow select-in */
u_int scsiseq;
scsiseq = ahc_inb(ahc, SCSISEQ_TEMPLATE);
scsiseq &= ~ENSELI;
ahc_outb(ahc, SCSISEQ_TEMPLATE, scsiseq);
scsiseq = ahc_inb(ahc, SCSISEQ);
scsiseq &= ~ENSELI;
ahc_outb(ahc, SCSISEQ, scsiseq);
if ((ahc->features & AHC_MULTIROLE) == 0) {
printk("Configuring Initiator Mode\n");
ahc->flags &= ~AHC_TARGETROLE;
ahc->flags |= AHC_INITIATORROLE;
/*
* Returning to a configuration that
* fit previously will always succeed.
*/
(void)ahc_loadseq(ahc);
ahc_restart(ahc);
/*
* Unpaused. The extra unpause
* that follows is harmless.
*/
}
}
ahc_unpause(ahc);
ahc_unlock(ahc, &s);
}
}
static void
ahc_update_scsiid(struct ahc_softc *ahc, u_int targid_mask)
{
u_int scsiid_mask;
u_int scsiid;
if ((ahc->features & AHC_MULTI_TID) == 0)
panic("ahc_update_scsiid called on non-multitid unit\n");
/*
* Since we will rely on the TARGID mask
* for selection enables, ensure that OID
* in SCSIID is not set to some other ID
* that we don't want to allow selections on.
*/
if ((ahc->features & AHC_ULTRA2) != 0)
scsiid = ahc_inb(ahc, SCSIID_ULTRA2);
else
scsiid = ahc_inb(ahc, SCSIID);
scsiid_mask = 0x1 << (scsiid & OID);
if ((targid_mask & scsiid_mask) == 0) {
u_int our_id;
/* ffs counts from 1 */
our_id = ffs(targid_mask);
if (our_id == 0)
our_id = ahc->our_id;
else
our_id--;
scsiid &= TID;
scsiid |= our_id;
}
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, SCSIID_ULTRA2, scsiid);
else
ahc_outb(ahc, SCSIID, scsiid);
}
static void
ahc_run_tqinfifo(struct ahc_softc *ahc, int paused)
{
struct target_cmd *cmd;
/*
* If the card supports auto-access pause,
* we can access the card directly regardless
* of whether it is paused or not.
*/
if ((ahc->features & AHC_AUTOPAUSE) != 0)
paused = TRUE;
ahc_sync_tqinfifo(ahc, BUS_DMASYNC_POSTREAD);
while ((cmd = &ahc->targetcmds[ahc->tqinfifonext])->cmd_valid != 0) {
/*
* Only advance through the queue if we
* have the resources to process the command.
*/
if (ahc_handle_target_cmd(ahc, cmd) != 0)
break;
cmd->cmd_valid = 0;
ahc_dmamap_sync(ahc, ahc->shared_data_dmat,
ahc->shared_data_dmamap,
ahc_targetcmd_offset(ahc, ahc->tqinfifonext),
sizeof(struct target_cmd),
BUS_DMASYNC_PREREAD);
ahc->tqinfifonext++;
/*
* Lazily update our position in the target mode incoming
* command queue as seen by the sequencer.
*/
if ((ahc->tqinfifonext & (HOST_TQINPOS - 1)) == 1) {
if ((ahc->features & AHC_HS_MAILBOX) != 0) {
u_int hs_mailbox;
hs_mailbox = ahc_inb(ahc, HS_MAILBOX);
hs_mailbox &= ~HOST_TQINPOS;
hs_mailbox |= ahc->tqinfifonext & HOST_TQINPOS;
ahc_outb(ahc, HS_MAILBOX, hs_mailbox);
} else {
if (!paused)
ahc_pause(ahc);
ahc_outb(ahc, KERNEL_TQINPOS,
ahc->tqinfifonext & HOST_TQINPOS);
if (!paused)
ahc_unpause(ahc);
}
}
}
}
static int
ahc_handle_target_cmd(struct ahc_softc *ahc, struct target_cmd *cmd)
{
struct ahc_tmode_tstate *tstate;
struct ahc_tmode_lstate *lstate;
struct ccb_accept_tio *atio;
uint8_t *byte;
int initiator;
int target;
int lun;
initiator = SCSIID_TARGET(ahc, cmd->scsiid);
target = SCSIID_OUR_ID(cmd->scsiid);
lun = (cmd->identify & MSG_IDENTIFY_LUNMASK);
byte = cmd->bytes;
tstate = ahc->enabled_targets[target];
lstate = NULL;
if (tstate != NULL)
lstate = tstate->enabled_luns[lun];
/*
* Commands for disabled luns go to the black hole driver.
*/
if (lstate == NULL)
lstate = ahc->black_hole;
atio = (struct ccb_accept_tio*)SLIST_FIRST(&lstate->accept_tios);
if (atio == NULL) {
ahc->flags |= AHC_TQINFIFO_BLOCKED;
/*
* Wait for more ATIOs from the peripheral driver for this lun.
*/
if (bootverbose)
printk("%s: ATIOs exhausted\n", ahc_name(ahc));
return (1);
} else
ahc->flags &= ~AHC_TQINFIFO_BLOCKED;
#if 0
printk("Incoming command from %d for %d:%d%s\n",
initiator, target, lun,
lstate == ahc->black_hole ? "(Black Holed)" : "");
#endif
SLIST_REMOVE_HEAD(&lstate->accept_tios, sim_links.sle);
if (lstate == ahc->black_hole) {
/* Fill in the wildcards */
atio->ccb_h.target_id = target;
atio->ccb_h.target_lun = lun;
}
/*
* Package it up and send it off to
* whomever has this lun enabled.
*/
atio->sense_len = 0;
atio->init_id = initiator;
if (byte[0] != 0xFF) {
/* Tag was included */
atio->tag_action = *byte++;
atio->tag_id = *byte++;
atio->ccb_h.flags = CAM_TAG_ACTION_VALID;
} else {
atio->ccb_h.flags = 0;
}
byte++;
/* Okay. Now determine the cdb size based on the command code */
switch (*byte >> CMD_GROUP_CODE_SHIFT) {
case 0:
atio->cdb_len = 6;
break;
case 1:
case 2:
atio->cdb_len = 10;
break;
case 4:
atio->cdb_len = 16;
break;
case 5:
atio->cdb_len = 12;
break;
case 3:
default:
/* Only copy the opcode. */
atio->cdb_len = 1;
printk("Reserved or VU command code type encountered\n");
break;
}
memcpy(atio->cdb_io.cdb_bytes, byte, atio->cdb_len);
atio->ccb_h.status |= CAM_CDB_RECVD;
if ((cmd->identify & MSG_IDENTIFY_DISCFLAG) == 0) {
/*
* We weren't allowed to disconnect.
* We're hanging on the bus until a
* continue target I/O comes in response
* to this accept tio.
*/
#if 0
printk("Received Immediate Command %d:%d:%d - %p\n",
initiator, target, lun, ahc->pending_device);
#endif
ahc->pending_device = lstate;
ahc_freeze_ccb((union ccb *)atio);
atio->ccb_h.flags |= CAM_DIS_DISCONNECT;
}
xpt_done((union ccb*)atio);
return (0);
}
#endif
|
linux-master
|
drivers/scsi/aic7xxx/aic7xxx_core.c
|
/*
* Linux driver attachment glue for aic7770 based controllers.
*
* Copyright (c) 2000-2003 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#14 $
*/
#include "aic7xxx_osm.h"
#include <linux/device.h>
#include <linux/eisa.h>
int
aic7770_map_registers(struct ahc_softc *ahc, u_int port)
{
/*
* Lock out other contenders for our i/o space.
*/
if (!request_region(port, AHC_EISA_IOSIZE, "aic7xxx"))
return (ENOMEM);
ahc->tag = BUS_SPACE_PIO;
ahc->bsh.ioport = port;
return (0);
}
int
aic7770_map_int(struct ahc_softc *ahc, u_int irq)
{
int error;
int shared;
shared = 0;
if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0)
shared = IRQF_SHARED;
error = request_irq(irq, ahc_linux_isr, shared, "aic7xxx", ahc);
if (error == 0)
ahc->platform_data->irq = irq;
return (-error);
}
static int
aic7770_probe(struct device *dev)
{
struct eisa_device *edev = to_eisa_device(dev);
u_int eisaBase = edev->base_addr+AHC_EISA_SLOT_OFFSET;
struct ahc_softc *ahc;
char buf[80];
char *name;
int error;
sprintf(buf, "ahc_eisa:%d", eisaBase >> 12);
name = kstrdup(buf, GFP_ATOMIC);
if (name == NULL)
return (ENOMEM);
ahc = ahc_alloc(&aic7xxx_driver_template, name);
if (ahc == NULL)
return (ENOMEM);
ahc->dev = dev;
error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data,
eisaBase);
if (error != 0) {
ahc->bsh.ioport = 0;
ahc_free(ahc);
return (error);
}
dev_set_drvdata(dev, ahc);
error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
return (error);
}
static int
aic7770_remove(struct device *dev)
{
struct ahc_softc *ahc = dev_get_drvdata(dev);
u_long s;
if (ahc->platform_data && ahc->platform_data->host)
scsi_remove_host(ahc->platform_data->host);
ahc_lock(ahc, &s);
ahc_intr_enable(ahc, FALSE);
ahc_unlock(ahc, &s);
ahc_free(ahc);
return 0;
}
static struct eisa_device_id aic7770_ids[] = {
{ "ADP7771", 0 }, /* AHA 274x */
{ "ADP7756", 1 }, /* AHA 284x BIOS enabled */
{ "ADP7757", 2 }, /* AHA 284x BIOS disabled */
{ "ADP7782", 3 }, /* AHA 274x Olivetti OEM */
{ "ADP7783", 4 }, /* AHA 274x Olivetti OEM (Differential) */
{ "ADP7770", 5 }, /* AIC7770 generic */
{ "" }
};
MODULE_DEVICE_TABLE(eisa, aic7770_ids);
static struct eisa_driver aic7770_driver = {
.id_table = aic7770_ids,
.driver = {
.name = "aic7xxx",
.probe = aic7770_probe,
.remove = aic7770_remove,
}
};
int
ahc_linux_eisa_init(void)
{
return eisa_driver_register(&aic7770_driver);
}
void
ahc_linux_eisa_exit(void)
{
eisa_driver_unregister(&aic7770_driver);
}
|
linux-master
|
drivers/scsi/aic7xxx/aic7770_osm.c
|
/*
* Product specific probe and attach routines for:
* 3940, 2940, aic7895, aic7890, aic7880,
* aic7870, aic7860 and aic7850 SCSI controllers
*
* Copyright (c) 1994-2001 Justin T. Gibbs.
* Copyright (c) 2000-2001 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#79 $
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"
#include "aic7xxx_pci.h"
static inline uint64_t
ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
{
uint64_t id;
id = subvendor
| (subdevice << 16)
| ((uint64_t)vendor << 32)
| ((uint64_t)device << 48);
return (id);
}
#define AHC_PCI_IOADDR PCIR_MAPS /* I/O Address */
#define AHC_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */
#define DEVID_9005_TYPE(id) ((id) & 0xF)
#define DEVID_9005_TYPE_HBA 0x0 /* Standard Card */
#define DEVID_9005_TYPE_AAA 0x3 /* RAID Card */
#define DEVID_9005_TYPE_SISL 0x5 /* Container ROMB */
#define DEVID_9005_TYPE_MB 0xF /* On Motherboard */
#define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
#define DEVID_9005_MAXRATE_U160 0x0
#define DEVID_9005_MAXRATE_ULTRA2 0x1
#define DEVID_9005_MAXRATE_ULTRA 0x2
#define DEVID_9005_MAXRATE_FAST 0x3
#define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6)
#define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8)
#define DEVID_9005_CLASS_SPI 0x0 /* Parallel SCSI */
#define SUBID_9005_TYPE(id) ((id) & 0xF)
#define SUBID_9005_TYPE_MB 0xF /* On Motherboard */
#define SUBID_9005_TYPE_CARD 0x0 /* Standard Card */
#define SUBID_9005_TYPE_LCCARD 0x1 /* Low Cost Card */
#define SUBID_9005_TYPE_RAID 0x3 /* Combined with Raid */
#define SUBID_9005_TYPE_KNOWN(id) \
((((id) & 0xF) == SUBID_9005_TYPE_MB) \
|| (((id) & 0xF) == SUBID_9005_TYPE_CARD) \
|| (((id) & 0xF) == SUBID_9005_TYPE_LCCARD) \
|| (((id) & 0xF) == SUBID_9005_TYPE_RAID))
#define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4)
#define SUBID_9005_MAXRATE_ULTRA2 0x0
#define SUBID_9005_MAXRATE_ULTRA 0x1
#define SUBID_9005_MAXRATE_U160 0x2
#define SUBID_9005_MAXRATE_RESERVED 0x3
#define SUBID_9005_SEEPTYPE(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? ((id) & 0xC0) >> 6 \
: ((id) & 0x300) >> 8)
#define SUBID_9005_SEEPTYPE_NONE 0x0
#define SUBID_9005_SEEPTYPE_1K 0x1
#define SUBID_9005_SEEPTYPE_2K_4K 0x2
#define SUBID_9005_SEEPTYPE_RESERVED 0x3
#define SUBID_9005_AUTOTERM(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? (((id) & 0x400) >> 10) == 0 \
: (((id) & 0x40) >> 6) == 0)
#define SUBID_9005_NUMCHAN(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? ((id) & 0x300) >> 8 \
: ((id) & 0xC00) >> 10)
#define SUBID_9005_LEGACYCONN(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? 0 \
: ((id) & 0x80) >> 7)
#define SUBID_9005_MFUNCENB(id) \
((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \
? ((id) & 0x800) >> 11 \
: ((id) & 0x1000) >> 12)
/*
* Informational only. Should use chip register to be
* certain, but may be use in identification strings.
*/
#define SUBID_9005_CARD_SCSIWIDTH_MASK 0x2000
#define SUBID_9005_CARD_PCIWIDTH_MASK 0x4000
#define SUBID_9005_CARD_SEDIFF_MASK 0x8000
static ahc_device_setup_t ahc_aic785X_setup;
static ahc_device_setup_t ahc_aic7860_setup;
static ahc_device_setup_t ahc_apa1480_setup;
static ahc_device_setup_t ahc_aic7870_setup;
static ahc_device_setup_t ahc_aic7870h_setup;
static ahc_device_setup_t ahc_aha394X_setup;
static ahc_device_setup_t ahc_aha394Xh_setup;
static ahc_device_setup_t ahc_aha494X_setup;
static ahc_device_setup_t ahc_aha494Xh_setup;
static ahc_device_setup_t ahc_aha398X_setup;
static ahc_device_setup_t ahc_aic7880_setup;
static ahc_device_setup_t ahc_aic7880h_setup;
static ahc_device_setup_t ahc_aha2940Pro_setup;
static ahc_device_setup_t ahc_aha394XU_setup;
static ahc_device_setup_t ahc_aha394XUh_setup;
static ahc_device_setup_t ahc_aha398XU_setup;
static ahc_device_setup_t ahc_aic7890_setup;
static ahc_device_setup_t ahc_aic7892_setup;
static ahc_device_setup_t ahc_aic7895_setup;
static ahc_device_setup_t ahc_aic7895h_setup;
static ahc_device_setup_t ahc_aic7896_setup;
static ahc_device_setup_t ahc_aic7899_setup;
static ahc_device_setup_t ahc_aha29160C_setup;
static ahc_device_setup_t ahc_raid_setup;
static ahc_device_setup_t ahc_aha394XX_setup;
static ahc_device_setup_t ahc_aha494XX_setup;
static ahc_device_setup_t ahc_aha398XX_setup;
static const struct ahc_pci_identity ahc_pci_ident_table[] = {
/* aic7850 based controllers */
{
ID_AHA_2902_04_10_15_20C_30C,
ID_ALL_MASK,
"Adaptec 2902/04/10/15/20C/30C SCSI adapter",
ahc_aic785X_setup
},
/* aic7860 based controllers */
{
ID_AHA_2930CU,
ID_ALL_MASK,
"Adaptec 2930CU SCSI adapter",
ahc_aic7860_setup
},
{
ID_AHA_1480A & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 1480A Ultra SCSI adapter",
ahc_apa1480_setup
},
{
ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940A Ultra SCSI adapter",
ahc_aic7860_setup
},
{
ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940A/CN Ultra SCSI adapter",
ahc_aic7860_setup
},
{
ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2930C Ultra SCSI adapter (VAR)",
ahc_aic7860_setup
},
/* aic7870 based controllers */
{
ID_AHA_2940,
ID_ALL_MASK,
"Adaptec 2940 SCSI adapter",
ahc_aic7870_setup
},
{
ID_AHA_3940,
ID_ALL_MASK,
"Adaptec 3940 SCSI adapter",
ahc_aha394X_setup
},
{
ID_AHA_398X,
ID_ALL_MASK,
"Adaptec 398X SCSI RAID adapter",
ahc_aha398X_setup
},
{
ID_AHA_2944,
ID_ALL_MASK,
"Adaptec 2944 SCSI adapter",
ahc_aic7870h_setup
},
{
ID_AHA_3944,
ID_ALL_MASK,
"Adaptec 3944 SCSI adapter",
ahc_aha394Xh_setup
},
{
ID_AHA_4944,
ID_ALL_MASK,
"Adaptec 4944 SCSI adapter",
ahc_aha494Xh_setup
},
/* aic7880 based controllers */
{
ID_AHA_2940U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940 Ultra SCSI adapter",
ahc_aic7880_setup
},
{
ID_AHA_3940U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 3940 Ultra SCSI adapter",
ahc_aha394XU_setup
},
{
ID_AHA_2944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2944 Ultra SCSI adapter",
ahc_aic7880h_setup
},
{
ID_AHA_3944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 3944 Ultra SCSI adapter",
ahc_aha394XUh_setup
},
{
ID_AHA_398XU & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 398X Ultra SCSI RAID adapter",
ahc_aha398XU_setup
},
{
/*
* XXX Don't know the slot numbers
* so we can't identify channels
*/
ID_AHA_4944U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 4944 Ultra SCSI adapter",
ahc_aic7880h_setup
},
{
ID_AHA_2930U & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2930 Ultra SCSI adapter",
ahc_aic7880_setup
},
{
ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940 Pro Ultra SCSI adapter",
ahc_aha2940Pro_setup
},
{
ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec 2940/CN Ultra SCSI adapter",
ahc_aic7880_setup
},
/* Ignore all SISL (AAC on MB) based controllers. */
{
ID_9005_SISL_ID,
ID_9005_SISL_MASK,
NULL,
NULL
},
/* aic7890 based controllers */
{
ID_AHA_2930U2,
ID_ALL_MASK,
"Adaptec 2930 Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AHA_2940U2B,
ID_ALL_MASK,
"Adaptec 2940B Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AHA_2940U2_OEM,
ID_ALL_MASK,
"Adaptec 2940 Ultra2 SCSI adapter (OEM)",
ahc_aic7890_setup
},
{
ID_AHA_2940U2,
ID_ALL_MASK,
"Adaptec 2940 Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AHA_2950U2B,
ID_ALL_MASK,
"Adaptec 2950 Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AIC7890_ARO,
ID_ALL_MASK,
"Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)",
ahc_aic7890_setup
},
{
ID_AAA_131U2,
ID_ALL_MASK,
"Adaptec AAA-131 Ultra2 RAID adapter",
ahc_aic7890_setup
},
/* aic7892 based controllers */
{
ID_AHA_29160,
ID_ALL_MASK,
"Adaptec 29160 Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AHA_29160_CPQ,
ID_ALL_MASK,
"Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AHA_29160N,
ID_ALL_MASK,
"Adaptec 29160N Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AHA_29160C,
ID_ALL_MASK,
"Adaptec 29160C Ultra160 SCSI adapter",
ahc_aha29160C_setup
},
{
ID_AHA_29160B,
ID_ALL_MASK,
"Adaptec 29160B Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AHA_19160B,
ID_ALL_MASK,
"Adaptec 19160B Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AIC7892_ARO,
ID_ALL_MASK,
"Adaptec aic7892 Ultra160 SCSI adapter (ARO)",
ahc_aic7892_setup
},
{
ID_AHA_2915_30LP,
ID_ALL_MASK,
"Adaptec 2915/30LP Ultra160 SCSI adapter",
ahc_aic7892_setup
},
/* aic7895 based controllers */
{
ID_AHA_2940U_DUAL,
ID_ALL_MASK,
"Adaptec 2940/DUAL Ultra SCSI adapter",
ahc_aic7895_setup
},
{
ID_AHA_3940AU,
ID_ALL_MASK,
"Adaptec 3940A Ultra SCSI adapter",
ahc_aic7895_setup
},
{
ID_AHA_3944AU,
ID_ALL_MASK,
"Adaptec 3944A Ultra SCSI adapter",
ahc_aic7895h_setup
},
{
ID_AIC7895_ARO,
ID_AIC7895_ARO_MASK,
"Adaptec aic7895 Ultra SCSI adapter (ARO)",
ahc_aic7895_setup
},
/* aic7896/97 based controllers */
{
ID_AHA_3950U2B_0,
ID_ALL_MASK,
"Adaptec 3950B Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AHA_3950U2B_1,
ID_ALL_MASK,
"Adaptec 3950B Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AHA_3950U2D_0,
ID_ALL_MASK,
"Adaptec 3950D Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AHA_3950U2D_1,
ID_ALL_MASK,
"Adaptec 3950D Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AIC7896_ARO,
ID_ALL_MASK,
"Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)",
ahc_aic7896_setup
},
/* aic7899 based controllers */
{
ID_AHA_3960D,
ID_ALL_MASK,
"Adaptec 3960D Ultra160 SCSI adapter",
ahc_aic7899_setup
},
{
ID_AHA_3960D_CPQ,
ID_ALL_MASK,
"Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter",
ahc_aic7899_setup
},
{
ID_AIC7899_ARO,
ID_ALL_MASK,
"Adaptec aic7899 Ultra160 SCSI adapter (ARO)",
ahc_aic7899_setup
},
/* Generic chip probes for devices we don't know 'exactly' */
{
ID_AIC7850 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7850 SCSI adapter",
ahc_aic785X_setup
},
{
ID_AIC7855 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7855 SCSI adapter",
ahc_aic785X_setup
},
{
ID_AIC7859 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7859 SCSI adapter",
ahc_aic7860_setup
},
{
ID_AIC7860 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7860 Ultra SCSI adapter",
ahc_aic7860_setup
},
{
ID_AIC7870 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7870 SCSI adapter",
ahc_aic7870_setup
},
{
ID_AIC7880 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7880 Ultra SCSI adapter",
ahc_aic7880_setup
},
{
ID_AIC7890 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec aic7890/91 Ultra2 SCSI adapter",
ahc_aic7890_setup
},
{
ID_AIC7892 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec aic7892 Ultra160 SCSI adapter",
ahc_aic7892_setup
},
{
ID_AIC7895 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7895 Ultra SCSI adapter",
ahc_aic7895_setup
},
{
ID_AIC7896 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec aic7896/97 Ultra2 SCSI adapter",
ahc_aic7896_setup
},
{
ID_AIC7899 & ID_9005_GENERIC_MASK,
ID_9005_GENERIC_MASK,
"Adaptec aic7899 Ultra160 SCSI adapter",
ahc_aic7899_setup
},
{
ID_AIC7810 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7810 RAID memory controller",
ahc_raid_setup
},
{
ID_AIC7815 & ID_DEV_VENDOR_MASK,
ID_DEV_VENDOR_MASK,
"Adaptec aic7815 RAID memory controller",
ahc_raid_setup
}
};
static const u_int ahc_num_pci_devs = ARRAY_SIZE(ahc_pci_ident_table);
#define AHC_394X_SLOT_CHANNEL_A 4
#define AHC_394X_SLOT_CHANNEL_B 5
#define AHC_398X_SLOT_CHANNEL_A 4
#define AHC_398X_SLOT_CHANNEL_B 8
#define AHC_398X_SLOT_CHANNEL_C 12
#define AHC_494X_SLOT_CHANNEL_A 4
#define AHC_494X_SLOT_CHANNEL_B 5
#define AHC_494X_SLOT_CHANNEL_C 6
#define AHC_494X_SLOT_CHANNEL_D 7
#define DEVCONFIG 0x40
#define PCIERRGENDIS 0x80000000ul
#define SCBSIZE32 0x00010000ul /* aic789X only */
#define REXTVALID 0x00001000ul /* ultra cards only */
#define MPORTMODE 0x00000400ul /* aic7870+ only */
#define RAMPSM 0x00000200ul /* aic7870+ only */
#define VOLSENSE 0x00000100ul
#define PCI64BIT 0x00000080ul /* 64Bit PCI bus (Ultra2 Only)*/
#define SCBRAMSEL 0x00000080ul
#define MRDCEN 0x00000040ul
#define EXTSCBTIME 0x00000020ul /* aic7870 only */
#define EXTSCBPEN 0x00000010ul /* aic7870 only */
#define BERREN 0x00000008ul
#define DACEN 0x00000004ul
#define STPWLEVEL 0x00000002ul
#define DIFACTNEGEN 0x00000001ul /* aic7870 only */
#define CSIZE_LATTIME 0x0c
#define CACHESIZE 0x0000003ful /* only 5 bits */
#define LATTIME 0x0000ff00ul
/* PCI STATUS definitions */
#define DPE 0x80
#define SSE 0x40
#define RMA 0x20
#define RTA 0x10
#define STA 0x08
#define DPR 0x01
static int ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
uint16_t subdevice, uint16_t subvendor);
static int ahc_ext_scbram_present(struct ahc_softc *ahc);
static void ahc_scbram_config(struct ahc_softc *ahc, int enable,
int pcheck, int fast, int large);
static void ahc_probe_ext_scbram(struct ahc_softc *ahc);
static void check_extport(struct ahc_softc *ahc, u_int *sxfrctl1);
static void ahc_parse_pci_eeprom(struct ahc_softc *ahc,
struct seeprom_config *sc);
static void configure_termination(struct ahc_softc *ahc,
struct seeprom_descriptor *sd,
u_int adapter_control,
u_int *sxfrctl1);
static void ahc_new_term_detect(struct ahc_softc *ahc,
int *enableSEC_low,
int *enableSEC_high,
int *enablePRI_low,
int *enablePRI_high,
int *eeprom_present);
static void aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *internal68_present,
int *externalcable_present,
int *eeprom_present);
static void aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *externalcable_present,
int *eeprom_present);
static void write_brdctl(struct ahc_softc *ahc, uint8_t value);
static uint8_t read_brdctl(struct ahc_softc *ahc);
static void ahc_pci_intr(struct ahc_softc *ahc);
static int ahc_pci_chip_init(struct ahc_softc *ahc);
static int
ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor,
uint16_t subdevice, uint16_t subvendor)
{
int result;
/* Default to invalid. */
result = 0;
if (vendor == 0x9005
&& subvendor == 0x9005
&& subdevice != device
&& SUBID_9005_TYPE_KNOWN(subdevice) != 0) {
switch (SUBID_9005_TYPE(subdevice)) {
case SUBID_9005_TYPE_MB:
break;
case SUBID_9005_TYPE_CARD:
case SUBID_9005_TYPE_LCCARD:
/*
* Currently only trust Adaptec cards to
* get the sub device info correct.
*/
if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA)
result = 1;
break;
case SUBID_9005_TYPE_RAID:
break;
default:
break;
}
}
return (result);
}
const struct ahc_pci_identity *
ahc_find_pci_device(ahc_dev_softc_t pci)
{
uint64_t full_id;
uint16_t device;
uint16_t vendor;
uint16_t subdevice;
uint16_t subvendor;
const struct ahc_pci_identity *entry;
u_int i;
vendor = ahc_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
device = ahc_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
subvendor = ahc_pci_read_config(pci, PCI_SUBSYSTEM_VENDOR_ID, /*bytes*/2);
subdevice = ahc_pci_read_config(pci, PCI_SUBSYSTEM_ID, /*bytes*/2);
full_id = ahc_compose_id(device, vendor, subdevice, subvendor);
/*
* If the second function is not hooked up, ignore it.
* Unfortunately, not all MB vendors implement the
* subdevice ID as per the Adaptec spec, so do our best
* to sanity check it prior to accepting the subdevice
* ID as valid.
*/
if (ahc_get_pci_function(pci) > 0
&& ahc_9005_subdevinfo_valid(device, vendor, subdevice, subvendor)
&& SUBID_9005_MFUNCENB(subdevice) == 0)
return (NULL);
for (i = 0; i < ahc_num_pci_devs; i++) {
entry = &ahc_pci_ident_table[i];
if (entry->full_id == (full_id & entry->id_mask)) {
/* Honor exclusion entries. */
if (entry->name == NULL)
return (NULL);
return (entry);
}
}
return (NULL);
}
int
ahc_pci_config(struct ahc_softc *ahc, const struct ahc_pci_identity *entry)
{
u_int command;
u_int our_id;
u_int sxfrctl1;
u_int scsiseq;
u_int dscommand0;
uint32_t devconfig;
int error;
uint8_t sblkctl;
our_id = 0;
error = entry->setup(ahc);
if (error != 0)
return (error);
ahc->chip |= AHC_PCI;
ahc->description = entry->name;
pci_set_power_state(ahc->dev_softc, AHC_POWER_STATE_D0);
error = ahc_pci_map_registers(ahc);
if (error != 0)
return (error);
/*
* Before we continue probing the card, ensure that
* its interrupts are *disabled*. We don't want
* a misstep to hang the machine in an interrupt
* storm.
*/
ahc_intr_enable(ahc, FALSE);
devconfig = ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
/*
* If we need to support high memory, enable dual
* address cycles. This bit must be set to enable
* high address bit generation even if we are on a
* 64bit bus (PCI64BIT set in devconfig).
*/
if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) {
if (bootverbose)
printk("%s: Enabling 39Bit Addressing\n",
ahc_name(ahc));
devconfig |= DACEN;
}
/* Ensure that pci error generation, a test feature, is disabled. */
devconfig |= PCIERRGENDIS;
ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
/* Ensure busmastering is enabled */
command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
command |= PCIM_CMD_BUSMASTEREN;
ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
/* On all PCI adapters, we allow SCB paging */
ahc->flags |= AHC_PAGESCBS;
error = ahc_softc_init(ahc);
if (error != 0)
return (error);
/*
* Disable PCI parity error checking. Users typically
* do this to work around broken PCI chipsets that get
* the parity timing wrong and thus generate lots of spurious
* errors. The chip only allows us to disable *all* parity
* error reporting when doing this, so CIO bus, scb ram, and
* scratch ram parity errors will be ignored too.
*/
if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0)
ahc->seqctl |= FAILDIS;
ahc->bus_intr = ahc_pci_intr;
ahc->bus_chip_init = ahc_pci_chip_init;
/* Remember how the card was setup in case there is no SEEPROM */
if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) {
ahc_pause(ahc);
if ((ahc->features & AHC_ULTRA2) != 0)
our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
else
our_id = ahc_inb(ahc, SCSIID) & OID;
sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
scsiseq = ahc_inb(ahc, SCSISEQ);
} else {
sxfrctl1 = STPWEN;
our_id = 7;
scsiseq = 0;
}
error = ahc_reset(ahc, /*reinit*/FALSE);
if (error != 0)
return (ENXIO);
if ((ahc->features & AHC_DT) != 0) {
u_int sfunct;
/* Perform ALT-Mode Setup */
sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
ahc_outb(ahc, OPTIONMODE,
OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS);
ahc_outb(ahc, SFUNCT, sfunct);
/* Normal mode setup */
ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN
|TARGCRCENDEN);
}
dscommand0 = ahc_inb(ahc, DSCOMMAND0);
dscommand0 |= MPARCKEN|CACHETHEN;
if ((ahc->features & AHC_ULTRA2) != 0) {
/*
* DPARCKEN doesn't work correctly on
* some MBs so don't use it.
*/
dscommand0 &= ~DPARCKEN;
}
/*
* Handle chips that must have cache line
* streaming (dis/en)abled.
*/
if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0)
dscommand0 |= CACHETHEN;
if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0)
dscommand0 &= ~CACHETHEN;
ahc_outb(ahc, DSCOMMAND0, dscommand0);
ahc->pci_cachesize =
ahc_pci_read_config(ahc->dev_softc, CSIZE_LATTIME,
/*bytes*/1) & CACHESIZE;
ahc->pci_cachesize *= 4;
if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0
&& ahc->pci_cachesize == 4) {
ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
0, /*bytes*/1);
ahc->pci_cachesize = 0;
}
/*
* We cannot perform ULTRA speeds without the presence
* of the external precision resistor.
*/
if ((ahc->features & AHC_ULTRA) != 0) {
uint32_t devconfig;
devconfig = ahc_pci_read_config(ahc->dev_softc,
DEVCONFIG, /*bytes*/4);
if ((devconfig & REXTVALID) == 0)
ahc->features &= ~AHC_ULTRA;
}
/* See if we have a SEEPROM and perform auto-term */
check_extport(ahc, &sxfrctl1);
/*
* Take the LED out of diagnostic mode
*/
sblkctl = ahc_inb(ahc, SBLKCTL);
ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
if ((ahc->features & AHC_ULTRA2) != 0) {
ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX);
} else {
ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
}
if (ahc->flags & AHC_USEDEFAULTS) {
/*
* PCI Adapter default setup
* Should only be used if the adapter does not have
* a SEEPROM.
*/
/* See if someone else set us up already */
if ((ahc->flags & AHC_NO_BIOS_INIT) == 0
&& scsiseq != 0) {
printk("%s: Using left over BIOS settings\n",
ahc_name(ahc));
ahc->flags &= ~AHC_USEDEFAULTS;
ahc->flags |= AHC_BIOS_ENABLED;
} else {
/*
* Assume only one connector and always turn
* on termination.
*/
our_id = 0x07;
sxfrctl1 = STPWEN;
}
ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI);
ahc->our_id = our_id;
}
/*
* Take a look to see if we have external SRAM.
* We currently do not attempt to use SRAM that is
* shared among multiple controllers.
*/
ahc_probe_ext_scbram(ahc);
/*
* Record our termination setting for the
* generic initialization routine.
*/
if ((sxfrctl1 & STPWEN) != 0)
ahc->flags |= AHC_TERM_ENB_A;
/*
* Save chip register configuration data for chip resets
* that occur during runtime and resume events.
*/
ahc->bus_softc.pci_softc.devconfig =
ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
ahc->bus_softc.pci_softc.command =
ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1);
ahc->bus_softc.pci_softc.csize_lattime =
ahc_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, /*bytes*/1);
ahc->bus_softc.pci_softc.dscommand0 = ahc_inb(ahc, DSCOMMAND0);
ahc->bus_softc.pci_softc.dspcistatus = ahc_inb(ahc, DSPCISTATUS);
if ((ahc->features & AHC_DT) != 0) {
u_int sfunct;
sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
ahc->bus_softc.pci_softc.optionmode = ahc_inb(ahc, OPTIONMODE);
ahc->bus_softc.pci_softc.targcrccnt = ahc_inw(ahc, TARGCRCCNT);
ahc_outb(ahc, SFUNCT, sfunct);
ahc->bus_softc.pci_softc.crccontrol1 =
ahc_inb(ahc, CRCCONTROL1);
}
if ((ahc->features & AHC_MULTI_FUNC) != 0)
ahc->bus_softc.pci_softc.scbbaddr = ahc_inb(ahc, SCBBADDR);
if ((ahc->features & AHC_ULTRA2) != 0)
ahc->bus_softc.pci_softc.dff_thrsh = ahc_inb(ahc, DFF_THRSH);
/* Core initialization */
error = ahc_init(ahc);
if (error != 0)
return (error);
ahc->init_level++;
/*
* Allow interrupts now that we are completely setup.
*/
return ahc_pci_map_int(ahc);
}
/*
* Test for the presence of external sram in an
* "unshared" configuration.
*/
static int
ahc_ext_scbram_present(struct ahc_softc *ahc)
{
u_int chip;
int ramps;
int single_user;
uint32_t devconfig;
chip = ahc->chip & AHC_CHIPID_MASK;
devconfig = ahc_pci_read_config(ahc->dev_softc,
DEVCONFIG, /*bytes*/4);
single_user = (devconfig & MPORTMODE) != 0;
if ((ahc->features & AHC_ULTRA2) != 0)
ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0;
else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C)
/*
* External SCBRAM arbitration is flakey
* on these chips. Unfortunately this means
* we don't use the extra SCB ram space on the
* 3940AUW.
*/
ramps = 0;
else if (chip >= AHC_AIC7870)
ramps = (devconfig & RAMPSM) != 0;
else
ramps = 0;
if (ramps && single_user)
return (1);
return (0);
}
/*
* Enable external scbram.
*/
static void
ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck,
int fast, int large)
{
uint32_t devconfig;
if (ahc->features & AHC_MULTI_FUNC) {
/*
* Set the SCB Base addr (highest address bit)
* depending on which channel we are.
*/
ahc_outb(ahc, SCBBADDR, ahc_get_pci_function(ahc->dev_softc));
}
ahc->flags &= ~AHC_LSCBS_ENABLED;
if (large)
ahc->flags |= AHC_LSCBS_ENABLED;
devconfig = ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4);
if ((ahc->features & AHC_ULTRA2) != 0) {
u_int dscommand0;
dscommand0 = ahc_inb(ahc, DSCOMMAND0);
if (enable)
dscommand0 &= ~INTSCBRAMSEL;
else
dscommand0 |= INTSCBRAMSEL;
if (large)
dscommand0 &= ~USCBSIZE32;
else
dscommand0 |= USCBSIZE32;
ahc_outb(ahc, DSCOMMAND0, dscommand0);
} else {
if (fast)
devconfig &= ~EXTSCBTIME;
else
devconfig |= EXTSCBTIME;
if (enable)
devconfig &= ~SCBRAMSEL;
else
devconfig |= SCBRAMSEL;
if (large)
devconfig &= ~SCBSIZE32;
else
devconfig |= SCBSIZE32;
}
if (pcheck)
devconfig |= EXTSCBPEN;
else
devconfig &= ~EXTSCBPEN;
ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
}
/*
* Take a look to see if we have external SRAM.
* We currently do not attempt to use SRAM that is
* shared among multiple controllers.
*/
static void
ahc_probe_ext_scbram(struct ahc_softc *ahc)
{
int num_scbs;
int test_num_scbs;
int enable;
int pcheck;
int fast;
int large;
enable = FALSE;
pcheck = FALSE;
fast = FALSE;
large = FALSE;
num_scbs = 0;
if (ahc_ext_scbram_present(ahc) == 0)
goto done;
/*
* Probe for the best parameters to use.
*/
ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large);
num_scbs = ahc_probe_scbs(ahc);
if (num_scbs == 0) {
/* The SRAM wasn't really present. */
goto done;
}
enable = TRUE;
/*
* Clear any outstanding parity error
* and ensure that parity error reporting
* is enabled.
*/
ahc_outb(ahc, SEQCTL, 0);
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
/* Now see if we can do parity */
ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large);
num_scbs = ahc_probe_scbs(ahc);
if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
|| (ahc_inb(ahc, ERROR) & MPARERR) == 0)
pcheck = TRUE;
/* Clear any resulting parity error */
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
/* Now see if we can do fast timing */
ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large);
test_num_scbs = ahc_probe_scbs(ahc);
if (test_num_scbs == num_scbs
&& ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0
|| (ahc_inb(ahc, ERROR) & MPARERR) == 0))
fast = TRUE;
/*
* See if we can use large SCBs and still maintain
* the same overall count of SCBs.
*/
if ((ahc->features & AHC_LARGE_SCBS) != 0) {
ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE);
test_num_scbs = ahc_probe_scbs(ahc);
if (test_num_scbs >= num_scbs) {
large = TRUE;
num_scbs = test_num_scbs;
if (num_scbs >= 64) {
/*
* We have enough space to move the
* "busy targets table" into SCB space
* and make it qualify all the way to the
* lun level.
*/
ahc->flags |= AHC_SCB_BTT;
}
}
}
done:
/*
* Disable parity error reporting until we
* can load instruction ram.
*/
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
/* Clear any latched parity error */
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
if (bootverbose && enable) {
printk("%s: External SRAM, %s access%s, %dbytes/SCB\n",
ahc_name(ahc), fast ? "fast" : "slow",
pcheck ? ", parity checking enabled" : "",
large ? 64 : 32);
}
ahc_scbram_config(ahc, enable, pcheck, fast, large);
}
/*
* Perform some simple tests that should catch situations where
* our registers are invalidly mapped.
*/
int
ahc_pci_test_register_access(struct ahc_softc *ahc)
{
int error;
u_int status1;
uint32_t cmd;
uint8_t hcntrl;
error = EIO;
/*
* Enable PCI error interrupt status, but suppress NMIs
* generated by SERR raised due to target aborts.
*/
cmd = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2);
ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
/*
* First a simple test to see if any
* registers can be read. Reading
* HCNTRL has no side effects and has
* at least one bit that is guaranteed to
* be zero so it is a good register to
* use for this test.
*/
hcntrl = ahc_inb(ahc, HCNTRL);
if (hcntrl == 0xFF)
goto fail;
if ((hcntrl & CHIPRST) != 0) {
/*
* The chip has not been initialized since
* PCI/EISA/VLB bus reset. Don't trust
* "left over BIOS data".
*/
ahc->flags |= AHC_NO_BIOS_INIT;
}
/*
* Next create a situation where write combining
* or read prefetching could be initiated by the
* CPU or host bridge. Our device does not support
* either, so look for data corruption and/or flagged
* PCI errors. First pause without causing another
* chip reset.
*/
hcntrl &= ~CHIPRST;
ahc_outb(ahc, HCNTRL, hcntrl|PAUSE);
while (ahc_is_paused(ahc) == 0)
;
/* Clear any PCI errors that occurred before our driver attached. */
status1 = ahc_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
status1, /*bytes*/1);
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, SEQCTL, PERRORDIS);
ahc_outb(ahc, SCBPTR, 0);
ahc_outl(ahc, SCB_BASE, 0x5aa555aa);
if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa)
goto fail;
status1 = ahc_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
if ((status1 & STA) != 0)
goto fail;
error = 0;
fail:
/* Silently clear any latched errors. */
status1 = ahc_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
status1, /*bytes*/1);
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS);
ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
return (error);
}
/*
* Check the external port logic for a serial eeprom
* and termination/cable detection contrls.
*/
static void
check_extport(struct ahc_softc *ahc, u_int *sxfrctl1)
{
struct seeprom_descriptor sd;
struct seeprom_config *sc;
int have_seeprom;
int have_autoterm;
sd.sd_ahc = ahc;
sd.sd_control_offset = SEECTL;
sd.sd_status_offset = SEECTL;
sd.sd_dataout_offset = SEECTL;
sc = ahc->seep_config;
/*
* For some multi-channel devices, the c46 is simply too
* small to work. For the other controller types, we can
* get our information from either SEEPROM type. Set the
* type to start our probe with accordingly.
*/
if (ahc->flags & AHC_LARGE_SEEPROM)
sd.sd_chip = C56_66;
else
sd.sd_chip = C46;
sd.sd_MS = SEEMS;
sd.sd_RDY = SEERDY;
sd.sd_CS = SEECS;
sd.sd_CK = SEECK;
sd.sd_DO = SEEDO;
sd.sd_DI = SEEDI;
have_seeprom = ahc_acquire_seeprom(ahc, &sd);
if (have_seeprom) {
if (bootverbose)
printk("%s: Reading SEEPROM...", ahc_name(ahc));
for (;;) {
u_int start_addr;
start_addr = 32 * (ahc->channel - 'A');
have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
start_addr,
sizeof(*sc)/2);
if (have_seeprom)
have_seeprom = ahc_verify_cksum(sc);
if (have_seeprom != 0 || sd.sd_chip == C56_66) {
if (bootverbose) {
if (have_seeprom == 0)
printk ("checksum error\n");
else
printk ("done.\n");
}
break;
}
sd.sd_chip = C56_66;
}
ahc_release_seeprom(&sd);
/* Remember the SEEPROM type for later */
if (sd.sd_chip == C56_66)
ahc->flags |= AHC_LARGE_SEEPROM;
}
if (!have_seeprom) {
/*
* Pull scratch ram settings and treat them as
* if they are the contents of an seeprom if
* the 'ADPT' signature is found in SCB2.
* We manually compose the data as 16bit values
* to avoid endian issues.
*/
ahc_outb(ahc, SCBPTR, 2);
if (ahc_inb(ahc, SCB_BASE) == 'A'
&& ahc_inb(ahc, SCB_BASE + 1) == 'D'
&& ahc_inb(ahc, SCB_BASE + 2) == 'P'
&& ahc_inb(ahc, SCB_BASE + 3) == 'T') {
uint16_t *sc_data;
int i;
sc_data = (uint16_t *)sc;
for (i = 0; i < 32; i++, sc_data++) {
int j;
j = i * 2;
*sc_data = ahc_inb(ahc, SRAM_BASE + j)
| ahc_inb(ahc, SRAM_BASE + j + 1) << 8;
}
have_seeprom = ahc_verify_cksum(sc);
if (have_seeprom)
ahc->flags |= AHC_SCB_CONFIG_USED;
}
/*
* Clear any SCB parity errors in case this data and
* its associated parity was not initialized by the BIOS
*/
ahc_outb(ahc, CLRINT, CLRPARERR);
ahc_outb(ahc, CLRINT, CLRBRKADRINT);
}
if (!have_seeprom) {
if (bootverbose)
printk("%s: No SEEPROM available.\n", ahc_name(ahc));
ahc->flags |= AHC_USEDEFAULTS;
kfree(ahc->seep_config);
ahc->seep_config = NULL;
sc = NULL;
} else {
ahc_parse_pci_eeprom(ahc, sc);
}
/*
* Cards that have the external logic necessary to talk to
* a SEEPROM, are almost certain to have the remaining logic
* necessary for auto-termination control. This assumption
* hasn't failed yet...
*/
have_autoterm = have_seeprom;
/*
* Some low-cost chips have SEEPROM and auto-term control built
* in, instead of using a GAL. They can tell us directly
* if the termination logic is enabled.
*/
if ((ahc->features & AHC_SPIOCAP) != 0) {
if ((ahc_inb(ahc, SPIOCAP) & SSPIOCPS) == 0)
have_autoterm = FALSE;
}
if (have_autoterm) {
ahc->flags |= AHC_HAS_TERM_LOGIC;
ahc_acquire_seeprom(ahc, &sd);
configure_termination(ahc, &sd, sc->adapter_control, sxfrctl1);
ahc_release_seeprom(&sd);
} else if (have_seeprom) {
*sxfrctl1 &= ~STPWEN;
if ((sc->adapter_control & CFSTERM) != 0)
*sxfrctl1 |= STPWEN;
if (bootverbose)
printk("%s: Low byte termination %sabled\n",
ahc_name(ahc),
(*sxfrctl1 & STPWEN) ? "en" : "dis");
}
}
static void
ahc_parse_pci_eeprom(struct ahc_softc *ahc, struct seeprom_config *sc)
{
/*
* Put the data we've collected down into SRAM
* where ahc_init will find it.
*/
int i;
int max_targ = sc->max_targets & CFMAXTARG;
u_int scsi_conf;
uint16_t discenable;
uint16_t ultraenb;
discenable = 0;
ultraenb = 0;
if ((sc->adapter_control & CFULTRAEN) != 0) {
/*
* Determine if this adapter has a "newstyle"
* SEEPROM format.
*/
for (i = 0; i < max_targ; i++) {
if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) {
ahc->flags |= AHC_NEWEEPROM_FMT;
break;
}
}
}
for (i = 0; i < max_targ; i++) {
u_int scsirate;
uint16_t target_mask;
target_mask = 0x01 << i;
if (sc->device_flags[i] & CFDISC)
discenable |= target_mask;
if ((ahc->flags & AHC_NEWEEPROM_FMT) != 0) {
if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0)
ultraenb |= target_mask;
} else if ((sc->adapter_control & CFULTRAEN) != 0) {
ultraenb |= target_mask;
}
if ((sc->device_flags[i] & CFXFER) == 0x04
&& (ultraenb & target_mask) != 0) {
/* Treat 10MHz as a non-ultra speed */
sc->device_flags[i] &= ~CFXFER;
ultraenb &= ~target_mask;
}
if ((ahc->features & AHC_ULTRA2) != 0) {
u_int offset;
if (sc->device_flags[i] & CFSYNCH)
offset = MAX_OFFSET_ULTRA2;
else
offset = 0;
ahc_outb(ahc, TARG_OFFSET + i, offset);
/*
* The ultra enable bits contain the
* high bit of the ultra2 sync rate
* field.
*/
scsirate = (sc->device_flags[i] & CFXFER)
| ((ultraenb & target_mask) ? 0x8 : 0x0);
if (sc->device_flags[i] & CFWIDEB)
scsirate |= WIDEXFER;
} else {
scsirate = (sc->device_flags[i] & CFXFER) << 4;
if (sc->device_flags[i] & CFSYNCH)
scsirate |= SOFS;
if (sc->device_flags[i] & CFWIDEB)
scsirate |= WIDEXFER;
}
ahc_outb(ahc, TARG_SCSIRATE + i, scsirate);
}
ahc->our_id = sc->brtime_id & CFSCSIID;
scsi_conf = (ahc->our_id & 0x7);
if (sc->adapter_control & CFSPARITY)
scsi_conf |= ENSPCHK;
if (sc->adapter_control & CFRESETB)
scsi_conf |= RESET_SCSI;
ahc->flags |= (sc->adapter_control & CFBOOTCHAN) >> CFBOOTCHANSHIFT;
if (sc->bios_control & CFEXTEND)
ahc->flags |= AHC_EXTENDED_TRANS_A;
if (sc->bios_control & CFBIOSEN)
ahc->flags |= AHC_BIOS_ENABLED;
if (ahc->features & AHC_ULTRA
&& (ahc->flags & AHC_NEWEEPROM_FMT) == 0) {
/* Should we enable Ultra mode? */
if (!(sc->adapter_control & CFULTRAEN))
/* Treat us as a non-ultra card */
ultraenb = 0;
}
if (sc->signature == CFSIGNATURE
|| sc->signature == CFSIGNATURE2) {
uint32_t devconfig;
/* Honor the STPWLEVEL settings */
devconfig = ahc_pci_read_config(ahc->dev_softc,
DEVCONFIG, /*bytes*/4);
devconfig &= ~STPWLEVEL;
if ((sc->bios_control & CFSTPWLEVEL) != 0)
devconfig |= STPWLEVEL;
ahc_pci_write_config(ahc->dev_softc, DEVCONFIG,
devconfig, /*bytes*/4);
}
/* Set SCSICONF info */
ahc_outb(ahc, SCSICONF, scsi_conf);
ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
ahc_outb(ahc, ULTRA_ENB, ultraenb & 0xff);
ahc_outb(ahc, ULTRA_ENB + 1, (ultraenb >> 8) & 0xff);
}
static void
configure_termination(struct ahc_softc *ahc,
struct seeprom_descriptor *sd,
u_int adapter_control,
u_int *sxfrctl1)
{
uint8_t brddat;
brddat = 0;
/*
* Update the settings in sxfrctl1 to match the
* termination settings
*/
*sxfrctl1 = 0;
/*
* SEECS must be on for the GALS to latch
* the data properly. Be sure to leave MS
* on or we will release the seeprom.
*/
SEEPROM_OUTB(sd, sd->sd_MS | sd->sd_CS);
if ((adapter_control & CFAUTOTERM) != 0
|| (ahc->features & AHC_NEW_TERMCTL) != 0) {
int internal50_present;
int internal68_present;
int externalcable_present;
int eeprom_present;
int enableSEC_low;
int enableSEC_high;
int enablePRI_low;
int enablePRI_high;
int sum;
enableSEC_low = 0;
enableSEC_high = 0;
enablePRI_low = 0;
enablePRI_high = 0;
if ((ahc->features & AHC_NEW_TERMCTL) != 0) {
ahc_new_term_detect(ahc, &enableSEC_low,
&enableSEC_high,
&enablePRI_low,
&enablePRI_high,
&eeprom_present);
if ((adapter_control & CFSEAUTOTERM) == 0) {
if (bootverbose)
printk("%s: Manual SE Termination\n",
ahc_name(ahc));
enableSEC_low = (adapter_control & CFSELOWTERM);
enableSEC_high =
(adapter_control & CFSEHIGHTERM);
}
if ((adapter_control & CFAUTOTERM) == 0) {
if (bootverbose)
printk("%s: Manual LVD Termination\n",
ahc_name(ahc));
enablePRI_low = (adapter_control & CFSTERM);
enablePRI_high = (adapter_control & CFWSTERM);
}
/* Make the table calculations below happy */
internal50_present = 0;
internal68_present = 1;
externalcable_present = 1;
} else if ((ahc->features & AHC_SPIOCAP) != 0) {
aic785X_cable_detect(ahc, &internal50_present,
&externalcable_present,
&eeprom_present);
/* Can never support a wide connector. */
internal68_present = 0;
} else {
aic787X_cable_detect(ahc, &internal50_present,
&internal68_present,
&externalcable_present,
&eeprom_present);
}
if ((ahc->features & AHC_WIDE) == 0)
internal68_present = 0;
if (bootverbose
&& (ahc->features & AHC_ULTRA2) == 0) {
printk("%s: internal 50 cable %s present",
ahc_name(ahc),
internal50_present ? "is":"not");
if ((ahc->features & AHC_WIDE) != 0)
printk(", internal 68 cable %s present",
internal68_present ? "is":"not");
printk("\n%s: external cable %s present\n",
ahc_name(ahc),
externalcable_present ? "is":"not");
}
if (bootverbose)
printk("%s: BIOS eeprom %s present\n",
ahc_name(ahc), eeprom_present ? "is" : "not");
if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) {
/*
* The 50 pin connector is a separate bus,
* so force it to always be terminated.
* In the future, perform current sensing
* to determine if we are in the middle of
* a properly terminated bus.
*/
internal50_present = 0;
}
/*
* Now set the termination based on what
* we found.
* Flash Enable = BRDDAT7
* Secondary High Term Enable = BRDDAT6
* Secondary Low Term Enable = BRDDAT5 (7890)
* Primary High Term Enable = BRDDAT4 (7890)
*/
if ((ahc->features & AHC_ULTRA2) == 0
&& (internal50_present != 0)
&& (internal68_present != 0)
&& (externalcable_present != 0)) {
printk("%s: Illegal cable configuration!!. "
"Only two connectors on the "
"adapter may be used at a "
"time!\n", ahc_name(ahc));
/*
* Pretend there are no cables in the hope
* that having all of the termination on
* gives us a more stable bus.
*/
internal50_present = 0;
internal68_present = 0;
externalcable_present = 0;
}
if ((ahc->features & AHC_WIDE) != 0
&& ((externalcable_present == 0)
|| (internal68_present == 0)
|| (enableSEC_high != 0))) {
brddat |= BRDDAT6;
if (bootverbose) {
if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
printk("%s: 68 pin termination "
"Enabled\n", ahc_name(ahc));
else
printk("%s: %sHigh byte termination "
"Enabled\n", ahc_name(ahc),
enableSEC_high ? "Secondary "
: "");
}
}
sum = internal50_present + internal68_present
+ externalcable_present;
if (sum < 2 || (enableSEC_low != 0)) {
if ((ahc->features & AHC_ULTRA2) != 0)
brddat |= BRDDAT5;
else
*sxfrctl1 |= STPWEN;
if (bootverbose) {
if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0)
printk("%s: 50 pin termination "
"Enabled\n", ahc_name(ahc));
else
printk("%s: %sLow byte termination "
"Enabled\n", ahc_name(ahc),
enableSEC_low ? "Secondary "
: "");
}
}
if (enablePRI_low != 0) {
*sxfrctl1 |= STPWEN;
if (bootverbose)
printk("%s: Primary Low Byte termination "
"Enabled\n", ahc_name(ahc));
}
/*
* Setup STPWEN before setting up the rest of
* the termination per the tech note on the U160 cards.
*/
ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
if (enablePRI_high != 0) {
brddat |= BRDDAT4;
if (bootverbose)
printk("%s: Primary High Byte "
"termination Enabled\n",
ahc_name(ahc));
}
write_brdctl(ahc, brddat);
} else {
if ((adapter_control & CFSTERM) != 0) {
*sxfrctl1 |= STPWEN;
if (bootverbose)
printk("%s: %sLow byte termination Enabled\n",
ahc_name(ahc),
(ahc->features & AHC_ULTRA2) ? "Primary "
: "");
}
if ((adapter_control & CFWSTERM) != 0
&& (ahc->features & AHC_WIDE) != 0) {
brddat |= BRDDAT6;
if (bootverbose)
printk("%s: %sHigh byte termination Enabled\n",
ahc_name(ahc),
(ahc->features & AHC_ULTRA2)
? "Secondary " : "");
}
/*
* Setup STPWEN before setting up the rest of
* the termination per the tech note on the U160 cards.
*/
ahc_outb(ahc, SXFRCTL1, *sxfrctl1);
if ((ahc->features & AHC_WIDE) != 0)
write_brdctl(ahc, brddat);
}
SEEPROM_OUTB(sd, sd->sd_MS); /* Clear CS */
}
static void
ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low,
int *enableSEC_high, int *enablePRI_low,
int *enablePRI_high, int *eeprom_present)
{
uint8_t brdctl;
/*
* BRDDAT7 = Eeprom
* BRDDAT6 = Enable Secondary High Byte termination
* BRDDAT5 = Enable Secondary Low Byte termination
* BRDDAT4 = Enable Primary high byte termination
* BRDDAT3 = Enable Primary low byte termination
*/
brdctl = read_brdctl(ahc);
*eeprom_present = brdctl & BRDDAT7;
*enableSEC_high = (brdctl & BRDDAT6);
*enableSEC_low = (brdctl & BRDDAT5);
*enablePRI_high = (brdctl & BRDDAT4);
*enablePRI_low = (brdctl & BRDDAT3);
}
static void
aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *internal68_present, int *externalcable_present,
int *eeprom_present)
{
uint8_t brdctl;
/*
* First read the status of our cables.
* Set the rom bank to 0 since the
* bank setting serves as a multiplexor
* for the cable detection logic.
* BRDDAT5 controls the bank switch.
*/
write_brdctl(ahc, 0);
/*
* Now read the state of the internal
* connectors. BRDDAT6 is INT50 and
* BRDDAT7 is INT68.
*/
brdctl = read_brdctl(ahc);
*internal50_present = (brdctl & BRDDAT6) ? 0 : 1;
*internal68_present = (brdctl & BRDDAT7) ? 0 : 1;
/*
* Set the rom bank to 1 and determine
* the other signals.
*/
write_brdctl(ahc, BRDDAT5);
/*
* Now read the state of the external
* connectors. BRDDAT6 is EXT68 and
* BRDDAT7 is EPROMPS.
*/
brdctl = read_brdctl(ahc);
*externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
*eeprom_present = (brdctl & BRDDAT7) ? 1 : 0;
}
static void
aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present,
int *externalcable_present, int *eeprom_present)
{
uint8_t brdctl;
uint8_t spiocap;
spiocap = ahc_inb(ahc, SPIOCAP);
spiocap &= ~SOFTCMDEN;
spiocap |= EXT_BRDCTL;
ahc_outb(ahc, SPIOCAP, spiocap);
ahc_outb(ahc, BRDCTL, BRDRW|BRDCS);
ahc_flush_device_writes(ahc);
ahc_delay(500);
ahc_outb(ahc, BRDCTL, 0);
ahc_flush_device_writes(ahc);
ahc_delay(500);
brdctl = ahc_inb(ahc, BRDCTL);
*internal50_present = (brdctl & BRDDAT5) ? 0 : 1;
*externalcable_present = (brdctl & BRDDAT6) ? 0 : 1;
*eeprom_present = (ahc_inb(ahc, SPIOCAP) & EEPROM) ? 1 : 0;
}
int
ahc_acquire_seeprom(struct ahc_softc *ahc, struct seeprom_descriptor *sd)
{
int wait;
if ((ahc->features & AHC_SPIOCAP) != 0
&& (ahc_inb(ahc, SPIOCAP) & SEEPROM) == 0)
return (0);
/*
* Request access of the memory port. When access is
* granted, SEERDY will go high. We use a 1 second
* timeout which should be near 1 second more than
* is needed. Reason: after the chip reset, there
* should be no contention.
*/
SEEPROM_OUTB(sd, sd->sd_MS);
wait = 1000; /* 1 second timeout in msec */
while (--wait && ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0)) {
ahc_delay(1000); /* delay 1 msec */
}
if ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0) {
SEEPROM_OUTB(sd, 0);
return (0);
}
return(1);
}
void
ahc_release_seeprom(struct seeprom_descriptor *sd)
{
/* Release access to the memory port and the serial EEPROM. */
SEEPROM_OUTB(sd, 0);
}
static void
write_brdctl(struct ahc_softc *ahc, uint8_t value)
{
uint8_t brdctl;
if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
brdctl = BRDSTB;
if (ahc->channel == 'B')
brdctl |= BRDCS;
} else if ((ahc->features & AHC_ULTRA2) != 0) {
brdctl = 0;
} else {
brdctl = BRDSTB|BRDCS;
}
ahc_outb(ahc, BRDCTL, brdctl);
ahc_flush_device_writes(ahc);
brdctl |= value;
ahc_outb(ahc, BRDCTL, brdctl);
ahc_flush_device_writes(ahc);
if ((ahc->features & AHC_ULTRA2) != 0)
brdctl |= BRDSTB_ULTRA2;
else
brdctl &= ~BRDSTB;
ahc_outb(ahc, BRDCTL, brdctl);
ahc_flush_device_writes(ahc);
if ((ahc->features & AHC_ULTRA2) != 0)
brdctl = 0;
else
brdctl &= ~BRDCS;
ahc_outb(ahc, BRDCTL, brdctl);
}
static uint8_t
read_brdctl(struct ahc_softc *ahc)
{
uint8_t brdctl;
uint8_t value;
if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
brdctl = BRDRW;
if (ahc->channel == 'B')
brdctl |= BRDCS;
} else if ((ahc->features & AHC_ULTRA2) != 0) {
brdctl = BRDRW_ULTRA2;
} else {
brdctl = BRDRW|BRDCS;
}
ahc_outb(ahc, BRDCTL, brdctl);
ahc_flush_device_writes(ahc);
value = ahc_inb(ahc, BRDCTL);
ahc_outb(ahc, BRDCTL, 0);
return (value);
}
static void
ahc_pci_intr(struct ahc_softc *ahc)
{
u_int error;
u_int status1;
error = ahc_inb(ahc, ERROR);
if ((error & PCIERRSTAT) == 0)
return;
status1 = ahc_pci_read_config(ahc->dev_softc,
PCIR_STATUS + 1, /*bytes*/1);
printk("%s: PCI error Interrupt at seqaddr = 0x%x\n",
ahc_name(ahc),
ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
if (status1 & DPE) {
ahc->pci_target_perr_count++;
printk("%s: Data Parity Error Detected during address "
"or write data phase\n", ahc_name(ahc));
}
if (status1 & SSE) {
printk("%s: Signal System Error Detected\n", ahc_name(ahc));
}
if (status1 & RMA) {
printk("%s: Received a Master Abort\n", ahc_name(ahc));
}
if (status1 & RTA) {
printk("%s: Received a Target Abort\n", ahc_name(ahc));
}
if (status1 & STA) {
printk("%s: Signaled a Target Abort\n", ahc_name(ahc));
}
if (status1 & DPR) {
printk("%s: Data Parity Error has been reported via PERR#\n",
ahc_name(ahc));
}
/* Clear latched errors. */
ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1,
status1, /*bytes*/1);
if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) {
printk("%s: Latched PCIERR interrupt with "
"no status bits set\n", ahc_name(ahc));
} else {
ahc_outb(ahc, CLRINT, CLRPARERR);
}
if (ahc->pci_target_perr_count > AHC_PCI_TARGET_PERR_THRESH) {
printk(
"%s: WARNING WARNING WARNING WARNING\n"
"%s: Too many PCI parity errors observed as a target.\n"
"%s: Some device on this bus is generating bad parity.\n"
"%s: This is an error *observed by*, not *generated by*, this controller.\n"
"%s: PCI parity error checking has been disabled.\n"
"%s: WARNING WARNING WARNING WARNING\n",
ahc_name(ahc), ahc_name(ahc), ahc_name(ahc),
ahc_name(ahc), ahc_name(ahc), ahc_name(ahc));
ahc->seqctl |= FAILDIS;
ahc_outb(ahc, SEQCTL, ahc->seqctl);
}
ahc_unpause(ahc);
}
static int
ahc_pci_chip_init(struct ahc_softc *ahc)
{
ahc_outb(ahc, DSCOMMAND0, ahc->bus_softc.pci_softc.dscommand0);
ahc_outb(ahc, DSPCISTATUS, ahc->bus_softc.pci_softc.dspcistatus);
if ((ahc->features & AHC_DT) != 0) {
u_int sfunct;
sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE;
ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE);
ahc_outb(ahc, OPTIONMODE, ahc->bus_softc.pci_softc.optionmode);
ahc_outw(ahc, TARGCRCCNT, ahc->bus_softc.pci_softc.targcrccnt);
ahc_outb(ahc, SFUNCT, sfunct);
ahc_outb(ahc, CRCCONTROL1,
ahc->bus_softc.pci_softc.crccontrol1);
}
if ((ahc->features & AHC_MULTI_FUNC) != 0)
ahc_outb(ahc, SCBBADDR, ahc->bus_softc.pci_softc.scbbaddr);
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, DFF_THRSH, ahc->bus_softc.pci_softc.dff_thrsh);
return (ahc_chip_init(ahc));
}
void __maybe_unused
ahc_pci_resume(struct ahc_softc *ahc)
{
/*
* We assume that the OS has restored our register
* mappings, etc. Just update the config space registers
* that the OS doesn't know about and rely on our chip
* reset handler to handle the rest.
*/
ahc_pci_write_config(ahc->dev_softc, DEVCONFIG,
ahc->bus_softc.pci_softc.devconfig, /*bytes*/4);
ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
ahc->bus_softc.pci_softc.command, /*bytes*/1);
ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME,
ahc->bus_softc.pci_softc.csize_lattime, /*bytes*/1);
if ((ahc->flags & AHC_HAS_TERM_LOGIC) != 0) {
struct seeprom_descriptor sd;
u_int sxfrctl1;
sd.sd_ahc = ahc;
sd.sd_control_offset = SEECTL;
sd.sd_status_offset = SEECTL;
sd.sd_dataout_offset = SEECTL;
ahc_acquire_seeprom(ahc, &sd);
configure_termination(ahc, &sd,
ahc->seep_config->adapter_control,
&sxfrctl1);
ahc_release_seeprom(&sd);
}
}
static int
ahc_aic785X_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = 'A';
ahc->chip = AHC_AIC7850;
ahc->features = AHC_AIC7850_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev >= 1)
ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aic7860_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = 'A';
ahc->chip = AHC_AIC7860;
ahc->features = AHC_AIC7860_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev >= 1)
ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_apa1480_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7860_setup(ahc);
if (error != 0)
return (error);
ahc->features |= AHC_REMOVABLE;
return (0);
}
static int
ahc_aic7870_setup(struct ahc_softc *ahc)
{
ahc->channel = 'A';
ahc->chip = AHC_AIC7870;
ahc->features = AHC_AIC7870_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aic7870h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7870_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aha394X_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7870_setup(ahc);
if (error == 0)
error = ahc_aha394XX_setup(ahc);
return (error);
}
static int
ahc_aha394Xh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha394X_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aha398X_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7870_setup(ahc);
if (error == 0)
error = ahc_aha398XX_setup(ahc);
return (error);
}
static int
ahc_aha494X_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7870_setup(ahc);
if (error == 0)
error = ahc_aha494XX_setup(ahc);
return (error);
}
static int
ahc_aha494Xh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha494X_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aic7880_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = 'A';
ahc->chip = AHC_AIC7880;
ahc->features = AHC_AIC7880_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev >= 1) {
ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
} else {
ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
}
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aic7880h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7880_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aha2940Pro_setup(struct ahc_softc *ahc)
{
ahc->flags |= AHC_INT50_SPEEDFLEX;
return (ahc_aic7880_setup(ahc));
}
static int
ahc_aha394XU_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7880_setup(ahc);
if (error == 0)
error = ahc_aha394XX_setup(ahc);
return (error);
}
static int
ahc_aha394XUh_setup(struct ahc_softc *ahc)
{
int error = ahc_aha394XU_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aha398XU_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7880_setup(ahc);
if (error == 0)
error = ahc_aha398XX_setup(ahc);
return (error);
}
static int
ahc_aic7890_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = 'A';
ahc->chip = AHC_AIC7890;
ahc->features = AHC_AIC7890_FE;
ahc->flags |= AHC_NEWEEPROM_FMT;
rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev == 0)
ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG;
ahc->instruction_ram_size = 768;
return (0);
}
static int
ahc_aic7892_setup(struct ahc_softc *ahc)
{
ahc->channel = 'A';
ahc->chip = AHC_AIC7892;
ahc->features = AHC_AIC7892_FE;
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
ahc->instruction_ram_size = 1024;
return (0);
}
static int
ahc_aic7895_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
uint8_t rev;
pci = ahc->dev_softc;
ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A';
/*
* The 'C' revision of the aic7895 has a few additional features.
*/
rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
if (rev >= 4) {
ahc->chip = AHC_AIC7895C;
ahc->features = AHC_AIC7895C_FE;
} else {
u_int command;
ahc->chip = AHC_AIC7895;
ahc->features = AHC_AIC7895_FE;
/*
* The BIOS disables the use of MWI transactions
* since it does not have the MWI bug work around
* we have. Disabling MWI reduces performance, so
* turn it on again.
*/
command = ahc_pci_read_config(pci, PCIR_COMMAND, /*bytes*/1);
command |= PCIM_CMD_MWRICEN;
ahc_pci_write_config(pci, PCIR_COMMAND, command, /*bytes*/1);
ahc->bugs |= AHC_PCI_MWI_BUG;
}
/*
* XXX Does CACHETHEN really not work??? What about PCI retry?
* on C level chips. Need to test, but for now, play it safe.
*/
ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG
| AHC_CACHETHEN_BUG;
#if 0
uint32_t devconfig;
/*
* Cachesize must also be zero due to stray DAC
* problem when sitting behind some bridges.
*/
ahc_pci_write_config(pci, CSIZE_LATTIME, 0, /*bytes*/1);
devconfig = ahc_pci_read_config(pci, DEVCONFIG, /*bytes*/1);
devconfig |= MRDCEN;
ahc_pci_write_config(pci, DEVCONFIG, devconfig, /*bytes*/1);
#endif
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->instruction_ram_size = 512;
return (0);
}
static int
ahc_aic7895h_setup(struct ahc_softc *ahc)
{
int error = ahc_aic7895_setup(ahc);
ahc->features |= AHC_HVD;
return error;
}
static int
ahc_aic7896_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A';
ahc->chip = AHC_AIC7896;
ahc->features = AHC_AIC7896_FE;
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->bugs |= AHC_CACHETHEN_DIS_BUG;
ahc->instruction_ram_size = 768;
return (0);
}
static int
ahc_aic7899_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A';
ahc->chip = AHC_AIC7899;
ahc->features = AHC_AIC7899_FE;
ahc->flags |= AHC_NEWEEPROM_FMT;
ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG;
ahc->instruction_ram_size = 1024;
return (0);
}
static int
ahc_aha29160C_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7899_setup(ahc);
if (error != 0)
return (error);
ahc->features |= AHC_REMOVABLE;
return (0);
}
static int
ahc_raid_setup(struct ahc_softc *ahc)
{
printk("RAID functionality unsupported\n");
return (ENXIO);
}
static int
ahc_aha394XX_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
switch (ahc_get_pci_slot(pci)) {
case AHC_394X_SLOT_CHANNEL_A:
ahc->channel = 'A';
break;
case AHC_394X_SLOT_CHANNEL_B:
ahc->channel = 'B';
break;
default:
printk("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
ahc_get_pci_slot(pci));
ahc->channel = 'A';
}
return (0);
}
static int
ahc_aha398XX_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
switch (ahc_get_pci_slot(pci)) {
case AHC_398X_SLOT_CHANNEL_A:
ahc->channel = 'A';
break;
case AHC_398X_SLOT_CHANNEL_B:
ahc->channel = 'B';
break;
case AHC_398X_SLOT_CHANNEL_C:
ahc->channel = 'C';
break;
default:
printk("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
ahc_get_pci_slot(pci));
ahc->channel = 'A';
break;
}
ahc->flags |= AHC_LARGE_SEEPROM;
return (0);
}
static int
ahc_aha494XX_setup(struct ahc_softc *ahc)
{
ahc_dev_softc_t pci;
pci = ahc->dev_softc;
switch (ahc_get_pci_slot(pci)) {
case AHC_494X_SLOT_CHANNEL_A:
ahc->channel = 'A';
break;
case AHC_494X_SLOT_CHANNEL_B:
ahc->channel = 'B';
break;
case AHC_494X_SLOT_CHANNEL_C:
ahc->channel = 'C';
break;
case AHC_494X_SLOT_CHANNEL_D:
ahc->channel = 'D';
break;
default:
printk("adapter at unexpected slot %d\n"
"unable to map to a channel\n",
ahc_get_pci_slot(pci));
ahc->channel = 'A';
}
ahc->flags |= AHC_LARGE_SEEPROM;
return (0);
}
|
linux-master
|
drivers/scsi/aic7xxx/aic7xxx_pci.c
|
/*
* Interface for the 93C66/56/46/26/06 serial eeprom parts.
*
* Copyright (c) 1995, 1996 Daniel M. Eischen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL").
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: //depot/aic7xxx/aic7xxx/aic7xxx_93cx6.c#19 $
*/
/*
* The instruction set of the 93C66/56/46/26/06 chips are as follows:
*
* Start OP *
* Function Bit Code Address** Data Description
* -------------------------------------------------------------------
* READ 1 10 A5 - A0 Reads data stored in memory,
* starting at specified address
* EWEN 1 00 11XXXX Write enable must precede
* all programming modes
* ERASE 1 11 A5 - A0 Erase register A5A4A3A2A1A0
* WRITE 1 01 A5 - A0 D15 - D0 Writes register
* ERAL 1 00 10XXXX Erase all registers
* WRAL 1 00 01XXXX D15 - D0 Writes to all registers
* EWDS 1 00 00XXXX Disables all programming
* instructions
* *Note: A value of X for address is a don't care condition.
* **Note: There are 8 address bits for the 93C56/66 chips unlike
* the 93C46/26/06 chips which have 6 address bits.
*
* The 93C46 has a four wire interface: clock, chip select, data in, and
* data out. In order to perform one of the above functions, you need
* to enable the chip select for a clock period (typically a minimum of
* 1 usec, with the clock high and low a minimum of 750 and 250 nsec
* respectively). While the chip select remains high, you can clock in
* the instructions (above) starting with the start bit, followed by the
* OP code, Address, and Data (if needed). For the READ instruction, the
* requested 16-bit register contents is read from the data out line but
* is preceded by an initial zero (leading 0, followed by 16-bits, MSB
* first). The clock cycling from low to high initiates the next data
* bit to be sent from the chip.
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"
/*
* Right now, we only have to read the SEEPROM. But we make it easier to
* add other 93Cx6 functions.
*/
struct seeprom_cmd {
uint8_t len;
uint8_t bits[11];
};
/* Short opcodes for the c46 */
static const struct seeprom_cmd seeprom_ewen = {9, {1, 0, 0, 1, 1, 0, 0, 0, 0}};
static const struct seeprom_cmd seeprom_ewds = {9, {1, 0, 0, 0, 0, 0, 0, 0, 0}};
/* Long opcodes for the C56/C66 */
static const struct seeprom_cmd seeprom_long_ewen = {11, {1, 0, 0, 1, 1, 0, 0, 0, 0}};
static const struct seeprom_cmd seeprom_long_ewds = {11, {1, 0, 0, 0, 0, 0, 0, 0, 0}};
/* Common opcodes */
static const struct seeprom_cmd seeprom_write = {3, {1, 0, 1}};
static const struct seeprom_cmd seeprom_read = {3, {1, 1, 0}};
/*
* Wait for the SEERDY to go high; about 800 ns.
*/
#define CLOCK_PULSE(sd, rdy) \
while ((SEEPROM_STATUS_INB(sd) & rdy) == 0) { \
; /* Do nothing */ \
} \
(void)SEEPROM_INB(sd); /* Clear clock */
/*
* Send a START condition and the given command
*/
static void
send_seeprom_cmd(struct seeprom_descriptor *sd, const struct seeprom_cmd *cmd)
{
uint8_t temp;
int i = 0;
/* Send chip select for one clock cycle. */
temp = sd->sd_MS ^ sd->sd_CS;
SEEPROM_OUTB(sd, temp ^ sd->sd_CK);
CLOCK_PULSE(sd, sd->sd_RDY);
for (i = 0; i < cmd->len; i++) {
if (cmd->bits[i] != 0)
temp ^= sd->sd_DO;
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
SEEPROM_OUTB(sd, temp ^ sd->sd_CK);
CLOCK_PULSE(sd, sd->sd_RDY);
if (cmd->bits[i] != 0)
temp ^= sd->sd_DO;
}
}
/*
* Clear CS put the chip in the reset state, where it can wait for new commands.
*/
static void
reset_seeprom(struct seeprom_descriptor *sd)
{
uint8_t temp;
temp = sd->sd_MS;
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
SEEPROM_OUTB(sd, temp ^ sd->sd_CK);
CLOCK_PULSE(sd, sd->sd_RDY);
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
}
/*
* Read the serial EEPROM and returns 1 if successful and 0 if
* not successful.
*/
int
ahc_read_seeprom(struct seeprom_descriptor *sd, uint16_t *buf,
u_int start_addr, u_int count)
{
int i = 0;
u_int k = 0;
uint16_t v;
uint8_t temp;
/*
* Read the requested registers of the seeprom. The loop
* will range from 0 to count-1.
*/
for (k = start_addr; k < count + start_addr; k++) {
/*
* Now we're ready to send the read command followed by the
* address of the 16-bit register we want to read.
*/
send_seeprom_cmd(sd, &seeprom_read);
/* Send the 6 or 8 bit address (MSB first, LSB last). */
temp = sd->sd_MS ^ sd->sd_CS;
for (i = (sd->sd_chip - 1); i >= 0; i--) {
if ((k & (1 << i)) != 0)
temp ^= sd->sd_DO;
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
SEEPROM_OUTB(sd, temp ^ sd->sd_CK);
CLOCK_PULSE(sd, sd->sd_RDY);
if ((k & (1 << i)) != 0)
temp ^= sd->sd_DO;
}
/*
* Now read the 16 bit register. An initial 0 precedes the
* register contents which begins with bit 15 (MSB) and ends
* with bit 0 (LSB). The initial 0 will be shifted off the
* top of our word as we let the loop run from 0 to 16.
*/
v = 0;
for (i = 16; i >= 0; i--) {
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
v <<= 1;
if (SEEPROM_DATA_INB(sd) & sd->sd_DI)
v |= 1;
SEEPROM_OUTB(sd, temp ^ sd->sd_CK);
CLOCK_PULSE(sd, sd->sd_RDY);
}
buf[k - start_addr] = v;
/* Reset the chip select for the next command cycle. */
reset_seeprom(sd);
}
#ifdef AHC_DUMP_EEPROM
printk("\nSerial EEPROM:\n\t");
for (k = 0; k < count; k = k + 1) {
if (((k % 8) == 0) && (k != 0)) {
printk(KERN_CONT "\n\t");
}
printk(KERN_CONT " 0x%x", buf[k]);
}
printk(KERN_CONT "\n");
#endif
return (1);
}
/*
* Write the serial EEPROM and return 1 if successful and 0 if
* not successful.
*/
int
ahc_write_seeprom(struct seeprom_descriptor *sd, uint16_t *buf,
u_int start_addr, u_int count)
{
const struct seeprom_cmd *ewen, *ewds;
uint16_t v;
uint8_t temp;
int i, k;
/* Place the chip into write-enable mode */
if (sd->sd_chip == C46) {
ewen = &seeprom_ewen;
ewds = &seeprom_ewds;
} else if (sd->sd_chip == C56_66) {
ewen = &seeprom_long_ewen;
ewds = &seeprom_long_ewds;
} else {
printk("ahc_write_seeprom: unsupported seeprom type %d\n",
sd->sd_chip);
return (0);
}
send_seeprom_cmd(sd, ewen);
reset_seeprom(sd);
/* Write all requested data out to the seeprom. */
temp = sd->sd_MS ^ sd->sd_CS;
for (k = start_addr; k < count + start_addr; k++) {
/* Send the write command */
send_seeprom_cmd(sd, &seeprom_write);
/* Send the 6 or 8 bit address (MSB first). */
for (i = (sd->sd_chip - 1); i >= 0; i--) {
if ((k & (1 << i)) != 0)
temp ^= sd->sd_DO;
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
SEEPROM_OUTB(sd, temp ^ sd->sd_CK);
CLOCK_PULSE(sd, sd->sd_RDY);
if ((k & (1 << i)) != 0)
temp ^= sd->sd_DO;
}
/* Write the 16 bit value, MSB first */
v = buf[k - start_addr];
for (i = 15; i >= 0; i--) {
if ((v & (1 << i)) != 0)
temp ^= sd->sd_DO;
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
SEEPROM_OUTB(sd, temp ^ sd->sd_CK);
CLOCK_PULSE(sd, sd->sd_RDY);
if ((v & (1 << i)) != 0)
temp ^= sd->sd_DO;
}
/* Wait for the chip to complete the write */
temp = sd->sd_MS;
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
temp = sd->sd_MS ^ sd->sd_CS;
do {
SEEPROM_OUTB(sd, temp);
CLOCK_PULSE(sd, sd->sd_RDY);
SEEPROM_OUTB(sd, temp ^ sd->sd_CK);
CLOCK_PULSE(sd, sd->sd_RDY);
} while ((SEEPROM_DATA_INB(sd) & sd->sd_DI) == 0);
reset_seeprom(sd);
}
/* Put the chip back into write-protect mode */
send_seeprom_cmd(sd, ewds);
reset_seeprom(sd);
return (1);
}
int
ahc_verify_cksum(struct seeprom_config *sc)
{
int i;
int maxaddr;
uint32_t checksum;
uint16_t *scarray;
maxaddr = (sizeof(*sc)/2) - 1;
checksum = 0;
scarray = (uint16_t *)sc;
for (i = 0; i < maxaddr; i++)
checksum = checksum + scarray[i];
if (checksum == 0
|| (checksum & 0xFFFF) != sc->checksum) {
return (0);
} else {
return(1);
}
}
|
linux-master
|
drivers/scsi/aic7xxx/aic7xxx_93cx6.c
|
/*
* Linux driver attachment glue for PCI based controllers.
*
* Copyright (c) 2000-2001 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c#47 $
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_pci.h"
/* Define the macro locally since it's different for different class of chips.
*/
#define ID(x) ID_C(x, PCI_CLASS_STORAGE_SCSI)
static const struct pci_device_id ahc_linux_pci_id_table[] = {
/* aic7850 based controllers */
ID(ID_AHA_2902_04_10_15_20C_30C),
/* aic7860 based controllers */
ID(ID_AHA_2930CU),
ID(ID_AHA_1480A & ID_DEV_VENDOR_MASK),
ID(ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK),
ID(ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK),
ID(ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK),
/* aic7870 based controllers */
ID(ID_AHA_2940),
ID(ID_AHA_3940),
ID(ID_AHA_398X),
ID(ID_AHA_2944),
ID(ID_AHA_3944),
ID(ID_AHA_4944),
/* aic7880 based controllers */
ID(ID_AHA_2940U & ID_DEV_VENDOR_MASK),
ID(ID_AHA_3940U & ID_DEV_VENDOR_MASK),
ID(ID_AHA_2944U & ID_DEV_VENDOR_MASK),
ID(ID_AHA_3944U & ID_DEV_VENDOR_MASK),
ID(ID_AHA_398XU & ID_DEV_VENDOR_MASK),
ID(ID_AHA_4944U & ID_DEV_VENDOR_MASK),
ID(ID_AHA_2930U & ID_DEV_VENDOR_MASK),
ID(ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK),
ID(ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK),
/* aic7890 based controllers */
ID(ID_AHA_2930U2),
ID(ID_AHA_2940U2B),
ID(ID_AHA_2940U2_OEM),
ID(ID_AHA_2940U2),
ID(ID_AHA_2950U2B),
ID16(ID_AIC7890_ARO & ID_AIC7895_ARO_MASK),
ID(ID_AAA_131U2),
/* aic7890 based controllers */
ID(ID_AHA_29160),
ID(ID_AHA_29160_CPQ),
ID(ID_AHA_29160N),
ID(ID_AHA_29160C),
ID(ID_AHA_29160B),
ID(ID_AHA_19160B),
ID(ID_AIC7892_ARO),
/* aic7892 based controllers */
ID(ID_AHA_2940U_DUAL),
ID(ID_AHA_3940AU),
ID(ID_AHA_3944AU),
ID(ID_AIC7895_ARO),
ID(ID_AHA_3950U2B_0),
ID(ID_AHA_3950U2B_1),
ID(ID_AHA_3950U2D_0),
ID(ID_AHA_3950U2D_1),
ID(ID_AIC7896_ARO),
/* aic7899 based controllers */
ID(ID_AHA_3960D),
ID(ID_AHA_3960D_CPQ),
ID(ID_AIC7899_ARO),
/* Generic chip probes for devices we don't know exactly. */
ID(ID_AIC7850 & ID_DEV_VENDOR_MASK),
ID(ID_AIC7855 & ID_DEV_VENDOR_MASK),
ID(ID_AIC7859 & ID_DEV_VENDOR_MASK),
ID(ID_AIC7860 & ID_DEV_VENDOR_MASK),
ID(ID_AIC7870 & ID_DEV_VENDOR_MASK),
ID(ID_AIC7880 & ID_DEV_VENDOR_MASK),
ID16(ID_AIC7890 & ID_9005_GENERIC_MASK),
ID16(ID_AIC7892 & ID_9005_GENERIC_MASK),
ID(ID_AIC7895 & ID_DEV_VENDOR_MASK),
ID16(ID_AIC7896 & ID_9005_GENERIC_MASK),
ID16(ID_AIC7899 & ID_9005_GENERIC_MASK),
ID(ID_AIC7810 & ID_DEV_VENDOR_MASK),
ID(ID_AIC7815 & ID_DEV_VENDOR_MASK),
{ 0 }
};
MODULE_DEVICE_TABLE(pci, ahc_linux_pci_id_table);
static int __maybe_unused
ahc_linux_pci_dev_suspend(struct device *dev)
{
struct ahc_softc *ahc = dev_get_drvdata(dev);
return ahc_suspend(ahc);
}
static int __maybe_unused
ahc_linux_pci_dev_resume(struct device *dev)
{
struct ahc_softc *ahc = dev_get_drvdata(dev);
ahc_pci_resume(ahc);
return (ahc_resume(ahc));
}
static void
ahc_linux_pci_dev_remove(struct pci_dev *pdev)
{
struct ahc_softc *ahc = pci_get_drvdata(pdev);
u_long s;
if (ahc->platform_data && ahc->platform_data->host)
scsi_remove_host(ahc->platform_data->host);
ahc_lock(ahc, &s);
ahc_intr_enable(ahc, FALSE);
ahc_unlock(ahc, &s);
ahc_free(ahc);
}
static void
ahc_linux_pci_inherit_flags(struct ahc_softc *ahc)
{
struct pci_dev *pdev = ahc->dev_softc, *master_pdev;
unsigned int master_devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0);
master_pdev = pci_get_slot(pdev->bus, master_devfn);
if (master_pdev) {
struct ahc_softc *master = pci_get_drvdata(master_pdev);
if (master) {
ahc->flags &= ~AHC_BIOS_ENABLED;
ahc->flags |= master->flags & AHC_BIOS_ENABLED;
ahc->flags &= ~AHC_PRIMARY_CHANNEL;
ahc->flags |= master->flags & AHC_PRIMARY_CHANNEL;
} else
printk(KERN_ERR "aic7xxx: no multichannel peer found!\n");
pci_dev_put(master_pdev);
}
}
static int
ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
char buf[80];
const uint64_t mask_39bit = 0x7FFFFFFFFFULL;
struct ahc_softc *ahc;
ahc_dev_softc_t pci;
const struct ahc_pci_identity *entry;
char *name;
int error;
struct device *dev = &pdev->dev;
pci = pdev;
entry = ahc_find_pci_device(pci);
if (entry == NULL)
return (-ENODEV);
/*
* Allocate a softc for this card and
* set it up for attachment by our
* common detect routine.
*/
sprintf(buf, "ahc_pci:%d:%d:%d",
ahc_get_pci_bus(pci),
ahc_get_pci_slot(pci),
ahc_get_pci_function(pci));
name = kstrdup(buf, GFP_ATOMIC);
if (name == NULL)
return (-ENOMEM);
ahc = ahc_alloc(NULL, name);
if (ahc == NULL)
return (-ENOMEM);
if (pci_enable_device(pdev)) {
ahc_free(ahc);
return (-ENODEV);
}
pci_set_master(pdev);
if (sizeof(dma_addr_t) > 4
&& ahc->features & AHC_LARGE_SCBS
&& dma_set_mask(dev, mask_39bit) == 0
&& dma_get_required_mask(dev) > DMA_BIT_MASK(32)) {
ahc->flags |= AHC_39BIT_ADDRESSING;
} else {
if (dma_set_mask(dev, DMA_BIT_MASK(32))) {
ahc_free(ahc);
printk(KERN_WARNING "aic7xxx: No suitable DMA available.\n");
return (-ENODEV);
}
}
ahc->dev_softc = pci;
ahc->dev = &pci->dev;
error = ahc_pci_config(ahc, entry);
if (error != 0) {
ahc_free(ahc);
return (-error);
}
/*
* Second Function PCI devices need to inherit some
* settings from function 0.
*/
if ((ahc->features & AHC_MULTI_FUNC) && PCI_FUNC(pdev->devfn) != 0)
ahc_linux_pci_inherit_flags(ahc);
pci_set_drvdata(pdev, ahc);
ahc_linux_register_host(ahc, &aic7xxx_driver_template);
return (0);
}
/******************************* PCI Routines *********************************/
uint32_t
ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
{
switch (width) {
case 1:
{
uint8_t retval;
pci_read_config_byte(pci, reg, &retval);
return (retval);
}
case 2:
{
uint16_t retval;
pci_read_config_word(pci, reg, &retval);
return (retval);
}
case 4:
{
uint32_t retval;
pci_read_config_dword(pci, reg, &retval);
return (retval);
}
default:
panic("ahc_pci_read_config: Read size too big");
/* NOTREACHED */
return (0);
}
}
void
ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
{
switch (width) {
case 1:
pci_write_config_byte(pci, reg, value);
break;
case 2:
pci_write_config_word(pci, reg, value);
break;
case 4:
pci_write_config_dword(pci, reg, value);
break;
default:
panic("ahc_pci_write_config: Write size too big");
/* NOTREACHED */
}
}
static SIMPLE_DEV_PM_OPS(ahc_linux_pci_dev_pm_ops,
ahc_linux_pci_dev_suspend,
ahc_linux_pci_dev_resume);
static struct pci_driver aic7xxx_pci_driver = {
.name = "aic7xxx",
.probe = ahc_linux_pci_dev_probe,
.driver.pm = &ahc_linux_pci_dev_pm_ops,
.remove = ahc_linux_pci_dev_remove,
.id_table = ahc_linux_pci_id_table
};
int
ahc_linux_pci_init(void)
{
return pci_register_driver(&aic7xxx_pci_driver);
}
void
ahc_linux_pci_exit(void)
{
pci_unregister_driver(&aic7xxx_pci_driver);
}
static int
ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc, resource_size_t *base)
{
if (aic7xxx_allow_memio == 0)
return (ENOMEM);
*base = pci_resource_start(ahc->dev_softc, 0);
if (*base == 0)
return (ENOMEM);
if (!request_region(*base, 256, "aic7xxx"))
return (ENOMEM);
return (0);
}
static int
ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc,
resource_size_t *bus_addr,
uint8_t __iomem **maddr)
{
resource_size_t start;
int error;
error = 0;
start = pci_resource_start(ahc->dev_softc, 1);
if (start != 0) {
*bus_addr = start;
if (!request_mem_region(start, 0x1000, "aic7xxx"))
error = ENOMEM;
if (error == 0) {
*maddr = ioremap(start, 256);
if (*maddr == NULL) {
error = ENOMEM;
release_mem_region(start, 0x1000);
}
}
} else
error = ENOMEM;
return (error);
}
int
ahc_pci_map_registers(struct ahc_softc *ahc)
{
uint32_t command;
resource_size_t base;
uint8_t __iomem *maddr;
int error;
/*
* If its allowed, we prefer memory mapped access.
*/
command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, 4);
command &= ~(PCIM_CMD_PORTEN|PCIM_CMD_MEMEN);
base = 0;
maddr = NULL;
error = ahc_linux_pci_reserve_mem_region(ahc, &base, &maddr);
if (error == 0) {
ahc->platform_data->mem_busaddr = base;
ahc->tag = BUS_SPACE_MEMIO;
ahc->bsh.maddr = maddr;
ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
command | PCIM_CMD_MEMEN, 4);
/*
* Do a quick test to see if memory mapped
* I/O is functioning correctly.
*/
if (ahc_pci_test_register_access(ahc) != 0) {
printk("aic7xxx: PCI Device %d:%d:%d "
"failed memory mapped test. Using PIO.\n",
ahc_get_pci_bus(ahc->dev_softc),
ahc_get_pci_slot(ahc->dev_softc),
ahc_get_pci_function(ahc->dev_softc));
iounmap(maddr);
release_mem_region(ahc->platform_data->mem_busaddr,
0x1000);
ahc->bsh.maddr = NULL;
maddr = NULL;
} else
command |= PCIM_CMD_MEMEN;
} else {
printk("aic7xxx: PCI%d:%d:%d MEM region 0x%llx "
"unavailable. Cannot memory map device.\n",
ahc_get_pci_bus(ahc->dev_softc),
ahc_get_pci_slot(ahc->dev_softc),
ahc_get_pci_function(ahc->dev_softc),
(unsigned long long)base);
}
/*
* We always prefer memory mapped access.
*/
if (maddr == NULL) {
error = ahc_linux_pci_reserve_io_region(ahc, &base);
if (error == 0) {
ahc->tag = BUS_SPACE_PIO;
ahc->bsh.ioport = (u_long)base;
command |= PCIM_CMD_PORTEN;
} else {
printk("aic7xxx: PCI%d:%d:%d IO region 0x%llx[0..255] "
"unavailable. Cannot map device.\n",
ahc_get_pci_bus(ahc->dev_softc),
ahc_get_pci_slot(ahc->dev_softc),
ahc_get_pci_function(ahc->dev_softc),
(unsigned long long)base);
}
}
ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, 4);
return (error);
}
int
ahc_pci_map_int(struct ahc_softc *ahc)
{
int error;
error = request_irq(ahc->dev_softc->irq, ahc_linux_isr,
IRQF_SHARED, "aic7xxx", ahc);
if (error == 0)
ahc->platform_data->irq = ahc->dev_softc->irq;
return (-error);
}
|
linux-master
|
drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
|
/*
* Product specific probe and attach routines for:
* 27/284X and aic7770 motherboard SCSI controllers
*
* Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aic7770.c#32 $
*
* $FreeBSD$
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include "aic7xxx_93cx6.h"
#define ID_AIC7770 0x04907770
#define ID_AHA_274x 0x04907771
#define ID_AHA_284xB 0x04907756 /* BIOS enabled */
#define ID_AHA_284x 0x04907757 /* BIOS disabled*/
#define ID_OLV_274x 0x04907782 /* Olivetti OEM */
#define ID_OLV_274xD 0x04907783 /* Olivetti OEM (Differential) */
static int aic7770_chip_init(struct ahc_softc *ahc);
static int aha2840_load_seeprom(struct ahc_softc *ahc);
static ahc_device_setup_t ahc_aic7770_VL_setup;
static ahc_device_setup_t ahc_aic7770_EISA_setup;
static ahc_device_setup_t ahc_aic7770_setup;
struct aic7770_identity aic7770_ident_table[] =
{
{
ID_AHA_274x,
0xFFFFFFFF,
"Adaptec 274X SCSI adapter",
ahc_aic7770_EISA_setup
},
{
ID_AHA_284xB,
0xFFFFFFFE,
"Adaptec 284X SCSI adapter",
ahc_aic7770_VL_setup
},
{
ID_AHA_284x,
0xFFFFFFFE,
"Adaptec 284X SCSI adapter (BIOS Disabled)",
ahc_aic7770_VL_setup
},
{
ID_OLV_274x,
0xFFFFFFFF,
"Adaptec (Olivetti OEM) 274X SCSI adapter",
ahc_aic7770_EISA_setup
},
{
ID_OLV_274xD,
0xFFFFFFFF,
"Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
ahc_aic7770_EISA_setup
},
/* Generic chip probes for devices we don't know 'exactly' */
{
ID_AIC7770,
0xFFFFFFFF,
"Adaptec aic7770 SCSI adapter",
ahc_aic7770_EISA_setup
}
};
const int ahc_num_aic7770_devs = ARRAY_SIZE(aic7770_ident_table);
struct aic7770_identity *
aic7770_find_device(uint32_t id)
{
struct aic7770_identity *entry;
int i;
for (i = 0; i < ahc_num_aic7770_devs; i++) {
entry = &aic7770_ident_table[i];
if (entry->full_id == (id & entry->id_mask))
return (entry);
}
return (NULL);
}
int
aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
{
int error;
int have_seeprom;
u_int hostconf;
u_int irq;
u_int intdef;
error = entry->setup(ahc);
have_seeprom = 0;
if (error != 0)
return (error);
error = aic7770_map_registers(ahc, io);
if (error != 0)
return (error);
/*
* Before we continue probing the card, ensure that
* its interrupts are *disabled*. We don't want
* a misstep to hang the machine in an interrupt
* storm.
*/
ahc_intr_enable(ahc, FALSE);
ahc->description = entry->name;
error = ahc_softc_init(ahc);
if (error != 0)
return (error);
ahc->bus_chip_init = aic7770_chip_init;
error = ahc_reset(ahc, /*reinit*/FALSE);
if (error != 0)
return (error);
/* Make sure we have a valid interrupt vector */
intdef = ahc_inb(ahc, INTDEF);
irq = intdef & VECTOR;
switch (irq) {
case 9:
case 10:
case 11:
case 12:
case 14:
case 15:
break;
default:
printk("aic7770_config: invalid irq setting %d\n", intdef);
return (ENXIO);
}
if ((intdef & EDGE_TRIG) != 0)
ahc->flags |= AHC_EDGE_INTERRUPT;
switch (ahc->chip & (AHC_EISA|AHC_VL)) {
case AHC_EISA:
{
u_int biosctrl;
u_int scsiconf;
u_int scsiconf1;
biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
scsiconf = ahc_inb(ahc, SCSICONF);
scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
/* Get the primary channel information */
if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
ahc->flags |= 1;
if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
ahc->flags |= AHC_USEDEFAULTS;
} else {
if ((ahc->features & AHC_WIDE) != 0) {
ahc->our_id = scsiconf1 & HWSCSIID;
if (scsiconf & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_A;
} else {
ahc->our_id = scsiconf & HSCSIID;
ahc->our_id_b = scsiconf1 & HSCSIID;
if (scsiconf & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_A;
if (scsiconf1 & TERM_ENB)
ahc->flags |= AHC_TERM_ENB_B;
}
}
if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
break;
}
case AHC_VL:
{
have_seeprom = aha2840_load_seeprom(ahc);
break;
}
default:
break;
}
if (have_seeprom == 0) {
kfree(ahc->seep_config);
ahc->seep_config = NULL;
}
/*
* Ensure autoflush is enabled
*/
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
/* Setup the FIFO threshold and the bus off time */
hostconf = ahc_inb(ahc, HOSTCONF);
ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
/*
* Generic aic7xxx initialization.
*/
error = ahc_init(ahc);
if (error != 0)
return (error);
error = aic7770_map_int(ahc, irq);
if (error != 0)
return (error);
ahc->init_level++;
/*
* Enable the board's BUS drivers
*/
ahc_outb(ahc, BCTL, ENABLE);
return (0);
}
static int
aic7770_chip_init(struct ahc_softc *ahc)
{
ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
ahc_outb(ahc, BCTL, ENABLE);
return (ahc_chip_init(ahc));
}
/*
* Read the 284x SEEPROM.
*/
static int
aha2840_load_seeprom(struct ahc_softc *ahc)
{
struct seeprom_descriptor sd;
struct seeprom_config *sc;
int have_seeprom;
uint8_t scsi_conf;
sd.sd_ahc = ahc;
sd.sd_control_offset = SEECTL_2840;
sd.sd_status_offset = STATUS_2840;
sd.sd_dataout_offset = STATUS_2840;
sd.sd_chip = C46;
sd.sd_MS = 0;
sd.sd_RDY = EEPROM_TF;
sd.sd_CS = CS_2840;
sd.sd_CK = CK_2840;
sd.sd_DO = DO_2840;
sd.sd_DI = DI_2840;
sc = ahc->seep_config;
if (bootverbose)
printk("%s: Reading SEEPROM...", ahc_name(ahc));
have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
/*start_addr*/0, sizeof(*sc)/2);
if (have_seeprom) {
if (ahc_verify_cksum(sc) == 0) {
if(bootverbose)
printk ("checksum error\n");
have_seeprom = 0;
} else if (bootverbose) {
printk("done.\n");
}
}
if (!have_seeprom) {
if (bootverbose)
printk("%s: No SEEPROM available\n", ahc_name(ahc));
ahc->flags |= AHC_USEDEFAULTS;
} else {
/*
* Put the data we've collected down into SRAM
* where ahc_init will find it.
*/
int i;
int max_targ;
uint16_t discenable;
max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
discenable = 0;
for (i = 0; i < max_targ; i++){
uint8_t target_settings;
target_settings = (sc->device_flags[i] & CFXFER) << 4;
if (sc->device_flags[i] & CFSYNCH)
target_settings |= SOFS;
if (sc->device_flags[i] & CFWIDEB)
target_settings |= WIDEXFER;
if (sc->device_flags[i] & CFDISC)
discenable |= (0x01 << i);
ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
}
ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
ahc->our_id = sc->brtime_id & CFSCSIID;
scsi_conf = (ahc->our_id & 0x7);
if (sc->adapter_control & CFSPARITY)
scsi_conf |= ENSPCHK;
if (sc->adapter_control & CFRESETB)
scsi_conf |= RESET_SCSI;
if (sc->bios_control & CF284XEXTEND)
ahc->flags |= AHC_EXTENDED_TRANS_A;
/* Set SCSICONF info */
ahc_outb(ahc, SCSICONF, scsi_conf);
if (sc->adapter_control & CF284XSTERM)
ahc->flags |= AHC_TERM_ENB_A;
}
return (have_seeprom);
}
static int
ahc_aic7770_VL_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7770_setup(ahc);
ahc->chip |= AHC_VL;
return (error);
}
static int
ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
{
int error;
error = ahc_aic7770_setup(ahc);
ahc->chip |= AHC_EISA;
return (error);
}
static int
ahc_aic7770_setup(struct ahc_softc *ahc)
{
ahc->channel = 'A';
ahc->channel_b = 'B';
ahc->chip = AHC_AIC7770;
ahc->features = AHC_AIC7770_FE;
ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
ahc->flags |= AHC_PAGESCBS;
ahc->instruction_ram_size = 448;
return (0);
}
|
linux-master
|
drivers/scsi/aic7xxx/aic7770.c
|
/*
* Adaptec AIC7xxx device driver for Linux.
*
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_osm.c#235 $
*
* Copyright (c) 1994 John Aycock
* The University of Calgary Department of Computer Science.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Sources include the Adaptec 1740 driver (aha1740.c), the Ultrastor 24F
* driver (ultrastor.c), various Linux kernel source, the Adaptec EISA
* config file (!adp7771.cfg), the Adaptec AHA-2740A Series User's Guide,
* the Linux Kernel Hacker's Guide, Writing a SCSI Device Driver for Linux,
* the Adaptec 1542 driver (aha1542.c), the Adaptec EISA overlay file
* (adp7770.ovl), the Adaptec AHA-2740 Series Technical Reference Manual,
* the Adaptec AIC-7770 Data Book, the ANSI SCSI specification, the
* ANSI SCSI-2 specification (draft 10c), ...
*
* --------------------------------------------------------------------------
*
* Modifications by Daniel M. Eischen ([email protected]):
*
* Substantially modified to include support for wide and twin bus
* adapters, DMAing of SCBs, tagged queueing, IRQ sharing, bug fixes,
* SCB paging, and other rework of the code.
*
* --------------------------------------------------------------------------
* Copyright (c) 1994-2000 Justin T. Gibbs.
* Copyright (c) 2000-2001 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
*---------------------------------------------------------------------------
*
* Thanks also go to (in alphabetical order) the following:
*
* Rory Bolt - Sequencer bug fixes
* Jay Estabrook - Initial DEC Alpha support
* Doug Ledford - Much needed abort/reset bug fixes
* Kai Makisara - DMAing of SCBs
*
* A Boot time option was also added for not resetting the scsi bus.
*
* Form: aic7xxx=extended
* aic7xxx=no_reset
* aic7xxx=verbose
*
* Daniel M. Eischen, [email protected], 1/23/97
*
* Id: aic7xxx.c,v 4.1 1997/06/12 08:23:42 deang Exp
*/
/*
* Further driver modifications made by Doug Ledford <[email protected]>
*
* Copyright (c) 1997-1999 Doug Ledford
*
* These changes are released under the same licensing terms as the FreeBSD
* driver written by Justin Gibbs. Please see his Copyright notice above
* for the exact terms and conditions covering my changes as well as the
* warranty statement.
*
* Modifications made to the aic7xxx.c,v 4.1 driver from Dan Eischen include
* but are not limited to:
*
* 1: Import of the latest FreeBSD sequencer code for this driver
* 2: Modification of kernel code to accommodate different sequencer semantics
* 3: Extensive changes throughout kernel portion of driver to improve
* abort/reset processing and error hanndling
* 4: Other work contributed by various people on the Internet
* 5: Changes to printk information and verbosity selection code
* 6: General reliability related changes, especially in IRQ management
* 7: Modifications to the default probe/attach order for supported cards
* 8: SMP friendliness has been improved
*
*/
#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include <scsi/scsicam.h>
static struct scsi_transport_template *ahc_linux_transport_template = NULL;
#include <linux/init.h> /* __setup */
#include <linux/mm.h> /* For fetching system memory size */
#include <linux/blkdev.h> /* For block_size() */
#include <linux/delay.h> /* For ssleep/msleep */
#include <linux/slab.h>
/*
* Set this to the delay in seconds after SCSI bus reset.
* Note, we honor this only for the initial bus reset.
* The scsi error recovery code performs its own bus settle
* delay handling for error recovery actions.
*/
#ifdef CONFIG_AIC7XXX_RESET_DELAY_MS
#define AIC7XXX_RESET_DELAY CONFIG_AIC7XXX_RESET_DELAY_MS
#else
#define AIC7XXX_RESET_DELAY 5000
#endif
/*
* To change the default number of tagged transactions allowed per-device,
* add a line to the lilo.conf file like:
* append="aic7xxx=verbose,tag_info:{{32,32,32,32},{32,32,32,32}}"
* which will result in the first four devices on the first two
* controllers being set to a tagged queue depth of 32.
*
* The tag_commands is an array of 16 to allow for wide and twin adapters.
* Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15
* for channel 1.
*/
typedef struct {
uint8_t tag_commands[16]; /* Allow for wide/twin adapters. */
} adapter_tag_info_t;
/*
* Modify this as you see fit for your system.
*
* 0 tagged queuing disabled
* 1 <= n <= 253 n == max tags ever dispatched.
*
* The driver will throttle the number of commands dispatched to a
* device if it returns queue full. For devices with a fixed maximum
* queue depth, the driver will eventually determine this depth and
* lock it in (a console message is printed to indicate that a lock
* has occurred). On some devices, queue full is returned for a temporary
* resource shortage. These devices will return queue full at varying
* depths. The driver will throttle back when the queue fulls occur and
* attempt to slowly increase the depth over time as the device recovers
* from the resource shortage.
*
* In this example, the first line will disable tagged queueing for all
* the devices on the first probed aic7xxx adapter.
*
* The second line enables tagged queueing with 4 commands/LUN for IDs
* (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the
* driver to attempt to use up to 64 tags for ID 1.
*
* The third line is the same as the first line.
*
* The fourth line disables tagged queueing for devices 0 and 3. It
* enables tagged queueing for the other IDs, with 16 commands/LUN
* for IDs 1 and 4, 127 commands/LUN for ID 8, and 4 commands/LUN for
* IDs 2, 5-7, and 9-15.
*/
/*
* NOTE: The below structure is for reference only, the actual structure
* to modify in order to change things is just below this comment block.
adapter_tag_info_t aic7xxx_tag_info[] =
{
{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
{{4, 64, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4}},
{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
{{0, 16, 4, 0, 16, 4, 4, 4, 127, 4, 4, 4, 4, 4, 4, 4}}
};
*/
#ifdef CONFIG_AIC7XXX_CMDS_PER_DEVICE
#define AIC7XXX_CMDS_PER_DEVICE CONFIG_AIC7XXX_CMDS_PER_DEVICE
#else
#define AIC7XXX_CMDS_PER_DEVICE AHC_MAX_QUEUE
#endif
#define AIC7XXX_CONFIGED_TAG_COMMANDS { \
AIC7XXX_CMDS_PER_DEVICE, AIC7XXX_CMDS_PER_DEVICE, \
AIC7XXX_CMDS_PER_DEVICE, AIC7XXX_CMDS_PER_DEVICE, \
AIC7XXX_CMDS_PER_DEVICE, AIC7XXX_CMDS_PER_DEVICE, \
AIC7XXX_CMDS_PER_DEVICE, AIC7XXX_CMDS_PER_DEVICE, \
AIC7XXX_CMDS_PER_DEVICE, AIC7XXX_CMDS_PER_DEVICE, \
AIC7XXX_CMDS_PER_DEVICE, AIC7XXX_CMDS_PER_DEVICE, \
AIC7XXX_CMDS_PER_DEVICE, AIC7XXX_CMDS_PER_DEVICE, \
AIC7XXX_CMDS_PER_DEVICE, AIC7XXX_CMDS_PER_DEVICE \
}
/*
* By default, use the number of commands specified by
* the users kernel configuration.
*/
static adapter_tag_info_t aic7xxx_tag_info[] =
{
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS},
{AIC7XXX_CONFIGED_TAG_COMMANDS}
};
/*
* There should be a specific return value for this in scsi.h, but
* it seems that most drivers ignore it.
*/
#define DID_UNDERFLOW DID_ERROR
void
ahc_print_path(struct ahc_softc *ahc, struct scb *scb)
{
printk("(scsi%d:%c:%d:%d): ",
ahc->platform_data->host->host_no,
scb != NULL ? SCB_GET_CHANNEL(ahc, scb) : 'X',
scb != NULL ? SCB_GET_TARGET(ahc, scb) : -1,
scb != NULL ? SCB_GET_LUN(scb) : -1);
}
/*
* XXX - these options apply unilaterally to _all_ 274x/284x/294x
* cards in the system. This should be fixed. Exceptions to this
* rule are noted in the comments.
*/
/*
* Skip the scsi bus reset. Non 0 make us skip the reset at startup. This
* has no effect on any later resets that might occur due to things like
* SCSI bus timeouts.
*/
static uint32_t aic7xxx_no_reset;
/*
* Should we force EXTENDED translation on a controller.
* 0 == Use whatever is in the SEEPROM or default to off
* 1 == Use whatever is in the SEEPROM or default to on
*/
static uint32_t aic7xxx_extended;
/*
* PCI bus parity checking of the Adaptec controllers. This is somewhat
* dubious at best. To my knowledge, this option has never actually
* solved a PCI parity problem, but on certain machines with broken PCI
* chipset configurations where stray PCI transactions with bad parity are
* the norm rather than the exception, the error messages can be overwhelming.
* It's included in the driver for completeness.
* 0 = Shut off PCI parity check
* non-0 = reverse polarity pci parity checking
*/
static uint32_t aic7xxx_pci_parity = ~0;
/*
* There are lots of broken chipsets in the world. Some of them will
* violate the PCI spec when we issue byte sized memory writes to our
* controller. I/O mapped register access, if allowed by the given
* platform, will work in almost all cases.
*/
uint32_t aic7xxx_allow_memio = ~0;
/*
* So that we can set how long each device is given as a selection timeout.
* The table of values goes like this:
* 0 - 256ms
* 1 - 128ms
* 2 - 64ms
* 3 - 32ms
* We default to 256ms because some older devices need a longer time
* to respond to initial selection.
*/
static uint32_t aic7xxx_seltime;
/*
* Certain devices do not perform any aging on commands. Should the
* device be saturated by commands in one portion of the disk, it is
* possible for transactions on far away sectors to never be serviced.
* To handle these devices, we can periodically send an ordered tag to
* force all outstanding transactions to be serviced prior to a new
* transaction.
*/
static uint32_t aic7xxx_periodic_otag;
/*
* Module information and settable options.
*/
static char *aic7xxx = NULL;
MODULE_AUTHOR("Maintainer: Hannes Reinecke <[email protected]>");
MODULE_DESCRIPTION("Adaptec AIC77XX/78XX SCSI Host Bus Adapter driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(AIC7XXX_DRIVER_VERSION);
module_param(aic7xxx, charp, 0444);
MODULE_PARM_DESC(aic7xxx,
"period-delimited options string:\n"
" verbose Enable verbose/diagnostic logging\n"
" allow_memio Allow device registers to be memory mapped\n"
" debug Bitmask of debug values to enable\n"
" no_probe Toggle EISA/VLB controller probing\n"
" probe_eisa_vl Toggle EISA/VLB controller probing\n"
" no_reset Suppress initial bus resets\n"
" extended Enable extended geometry on all controllers\n"
" periodic_otag Send an ordered tagged transaction\n"
" periodically to prevent tag starvation.\n"
" This may be required by some older disk\n"
" drives or RAID arrays.\n"
" tag_info:<tag_str> Set per-target tag depth\n"
" global_tag_depth:<int> Global tag depth for every target\n"
" on every bus\n"
" seltime:<int> Selection Timeout\n"
" (0/256ms,1/128ms,2/64ms,3/32ms)\n"
"\n"
" Sample modprobe configuration file:\n"
" # Toggle EISA/VLB probing\n"
" # Set tag depth on Controller 1/Target 1 to 10 tags\n"
" # Shorten the selection timeout to 128ms\n"
"\n"
" options aic7xxx 'aic7xxx=probe_eisa_vl.tag_info:{{}.{.10}}.seltime:1'\n"
);
static void ahc_linux_handle_scsi_status(struct ahc_softc *,
struct scsi_device *,
struct scb *);
static void ahc_linux_queue_cmd_complete(struct ahc_softc *ahc,
struct scsi_cmnd *cmd);
static void ahc_linux_freeze_simq(struct ahc_softc *ahc);
static void ahc_linux_release_simq(struct ahc_softc *ahc);
static int ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag);
static void ahc_linux_initialize_scsi_bus(struct ahc_softc *ahc);
static u_int ahc_linux_user_tagdepth(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_linux_device_queue_depth(struct scsi_device *);
static int ahc_linux_run_command(struct ahc_softc*,
struct ahc_linux_device *,
struct scsi_cmnd *);
static void ahc_linux_setup_tag_info_global(char *p);
static int aic7xxx_setup(char *s);
static int ahc_linux_unit;
/************************** OS Utility Wrappers *******************************/
void
ahc_delay(long usec)
{
/*
* udelay on Linux can have problems for
* multi-millisecond waits. Wait at most
* 1024us per call.
*/
while (usec > 0) {
udelay(usec % 1024);
usec -= 1024;
}
}
/***************************** Low Level I/O **********************************/
uint8_t
ahc_inb(struct ahc_softc * ahc, long port)
{
uint8_t x;
if (ahc->tag == BUS_SPACE_MEMIO) {
x = readb(ahc->bsh.maddr + port);
} else {
x = inb(ahc->bsh.ioport + port);
}
mb();
return (x);
}
void
ahc_outb(struct ahc_softc * ahc, long port, uint8_t val)
{
if (ahc->tag == BUS_SPACE_MEMIO) {
writeb(val, ahc->bsh.maddr + port);
} else {
outb(val, ahc->bsh.ioport + port);
}
mb();
}
void
ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
{
int i;
/*
* There is probably a more efficient way to do this on Linux
* but we don't use this for anything speed critical and this
* should work.
*/
for (i = 0; i < count; i++)
ahc_outb(ahc, port, *array++);
}
void
ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count)
{
int i;
/*
* There is probably a more efficient way to do this on Linux
* but we don't use this for anything speed critical and this
* should work.
*/
for (i = 0; i < count; i++)
*array++ = ahc_inb(ahc, port);
}
/********************************* Inlines ************************************/
static void ahc_linux_unmap_scb(struct ahc_softc*, struct scb*);
static int ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
struct ahc_dma_seg *sg,
dma_addr_t addr, bus_size_t len);
static void
ahc_linux_unmap_scb(struct ahc_softc *ahc, struct scb *scb)
{
struct scsi_cmnd *cmd;
cmd = scb->io_ctx;
ahc_sync_sglist(ahc, scb, BUS_DMASYNC_POSTWRITE);
scsi_dma_unmap(cmd);
}
static int
ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
struct ahc_dma_seg *sg, dma_addr_t addr, bus_size_t len)
{
int consumed;
if ((scb->sg_count + 1) > AHC_NSEG)
panic("Too few segs for dma mapping. "
"Increase AHC_NSEG\n");
consumed = 1;
sg->addr = ahc_htole32(addr & 0xFFFFFFFF);
scb->platform_data->xfer_len += len;
if (sizeof(dma_addr_t) > 4
&& (ahc->flags & AHC_39BIT_ADDRESSING) != 0)
len |= (addr >> 8) & AHC_SG_HIGH_ADDR_MASK;
sg->len = ahc_htole32(len);
return (consumed);
}
/*
* Return a string describing the driver.
*/
static const char *
ahc_linux_info(struct Scsi_Host *host)
{
static char buffer[512];
char ahc_info[256];
char *bp;
struct ahc_softc *ahc;
bp = &buffer[0];
ahc = *(struct ahc_softc **)host->hostdata;
memset(bp, 0, sizeof(buffer));
strcpy(bp, "Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev " AIC7XXX_DRIVER_VERSION "\n"
" <");
strcat(bp, ahc->description);
strcat(bp, ">\n"
" ");
ahc_controller_info(ahc, ahc_info);
strcat(bp, ahc_info);
strcat(bp, "\n");
return (bp);
}
/*
* Queue an SCB to the controller.
*/
static int ahc_linux_queue_lck(struct scsi_cmnd *cmd)
{
struct ahc_softc *ahc;
struct ahc_linux_device *dev = scsi_transport_device_data(cmd->device);
int rtn = SCSI_MLQUEUE_HOST_BUSY;
unsigned long flags;
ahc = *(struct ahc_softc **)cmd->device->host->hostdata;
ahc_lock(ahc, &flags);
if (ahc->platform_data->qfrozen == 0) {
cmd->result = CAM_REQ_INPROG << 16;
rtn = ahc_linux_run_command(ahc, dev, cmd);
}
ahc_unlock(ahc, &flags);
return rtn;
}
static DEF_SCSI_QCMD(ahc_linux_queue)
static inline struct scsi_target **
ahc_linux_target_in_softc(struct scsi_target *starget)
{
struct ahc_softc *ahc =
*((struct ahc_softc **)dev_to_shost(&starget->dev)->hostdata);
unsigned int target_offset;
target_offset = starget->id;
if (starget->channel != 0)
target_offset += 8;
return &ahc->platform_data->starget[target_offset];
}
static int
ahc_linux_target_alloc(struct scsi_target *starget)
{
struct ahc_softc *ahc =
*((struct ahc_softc **)dev_to_shost(&starget->dev)->hostdata);
struct seeprom_config *sc = ahc->seep_config;
unsigned long flags;
struct scsi_target **ahc_targp = ahc_linux_target_in_softc(starget);
unsigned short scsirate;
struct ahc_devinfo devinfo;
char channel = starget->channel + 'A';
unsigned int our_id = ahc->our_id;
unsigned int target_offset;
target_offset = starget->id;
if (starget->channel != 0)
target_offset += 8;
if (starget->channel)
our_id = ahc->our_id_b;
ahc_lock(ahc, &flags);
BUG_ON(*ahc_targp != NULL);
*ahc_targp = starget;
if (sc) {
int maxsync = AHC_SYNCRATE_DT;
int ultra = 0;
int flags = sc->device_flags[target_offset];
if (ahc->flags & AHC_NEWEEPROM_FMT) {
if (flags & CFSYNCHISULTRA)
ultra = 1;
} else if (flags & CFULTRAEN)
ultra = 1;
/* AIC nutcase; 10MHz appears as ultra = 1, CFXFER = 0x04
* change it to ultra=0, CFXFER = 0 */
if(ultra && (flags & CFXFER) == 0x04) {
ultra = 0;
flags &= ~CFXFER;
}
if ((ahc->features & AHC_ULTRA2) != 0) {
scsirate = (flags & CFXFER) | (ultra ? 0x8 : 0);
} else {
scsirate = (flags & CFXFER) << 4;
maxsync = ultra ? AHC_SYNCRATE_ULTRA :
AHC_SYNCRATE_FAST;
}
spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0;
if (!(flags & CFSYNCH))
spi_max_offset(starget) = 0;
spi_min_period(starget) =
ahc_find_period(ahc, scsirate, maxsync);
}
ahc_compile_devinfo(&devinfo, our_id, starget->id,
CAM_LUN_WILDCARD, channel,
ROLE_INITIATOR);
ahc_set_syncrate(ahc, &devinfo, NULL, 0, 0, 0,
AHC_TRANS_GOAL, /*paused*/FALSE);
ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_GOAL, /*paused*/FALSE);
ahc_unlock(ahc, &flags);
return 0;
}
static void
ahc_linux_target_destroy(struct scsi_target *starget)
{
struct scsi_target **ahc_targp = ahc_linux_target_in_softc(starget);
*ahc_targp = NULL;
}
static int
ahc_linux_slave_alloc(struct scsi_device *sdev)
{
struct ahc_softc *ahc =
*((struct ahc_softc **)sdev->host->hostdata);
struct scsi_target *starget = sdev->sdev_target;
struct ahc_linux_device *dev;
if (bootverbose)
printk("%s: Slave Alloc %d\n", ahc_name(ahc), sdev->id);
dev = scsi_transport_device_data(sdev);
memset(dev, 0, sizeof(*dev));
/*
* We start out life using untagged
* transactions of which we allow one.
*/
dev->openings = 1;
/*
* Set maxtags to 0. This will be changed if we
* later determine that we are dealing with
* a tagged queuing capable device.
*/
dev->maxtags = 0;
spi_period(starget) = 0;
return 0;
}
static int
ahc_linux_slave_configure(struct scsi_device *sdev)
{
if (bootverbose)
sdev_printk(KERN_INFO, sdev, "Slave Configure\n");
ahc_linux_device_queue_depth(sdev);
/* Initial Domain Validation */
if (!spi_initial_dv(sdev->sdev_target))
spi_dv_device(sdev);
return 0;
}
#if defined(__i386__)
/*
* Return the disk geometry for the given SCSI device.
*/
static int
ahc_linux_biosparam(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int geom[])
{
int heads;
int sectors;
int cylinders;
int extended;
struct ahc_softc *ahc;
u_int channel;
ahc = *((struct ahc_softc **)sdev->host->hostdata);
channel = sdev_channel(sdev);
if (scsi_partsize(bdev, capacity, geom))
return 0;
heads = 64;
sectors = 32;
cylinders = aic_sector_div(capacity, heads, sectors);
if (aic7xxx_extended != 0)
extended = 1;
else if (channel == 0)
extended = (ahc->flags & AHC_EXTENDED_TRANS_A) != 0;
else
extended = (ahc->flags & AHC_EXTENDED_TRANS_B) != 0;
if (extended && cylinders >= 1024) {
heads = 255;
sectors = 63;
cylinders = aic_sector_div(capacity, heads, sectors);
}
geom[0] = heads;
geom[1] = sectors;
geom[2] = cylinders;
return (0);
}
#endif
/*
* Abort the current SCSI command(s).
*/
static int
ahc_linux_abort(struct scsi_cmnd *cmd)
{
int error;
error = ahc_linux_queue_recovery_cmd(cmd, SCB_ABORT);
if (error != SUCCESS)
printk("aic7xxx_abort returns 0x%x\n", error);
return (error);
}
/*
* Attempt to send a target reset message to the device that timed out.
*/
static int
ahc_linux_dev_reset(struct scsi_cmnd *cmd)
{
int error;
error = ahc_linux_queue_recovery_cmd(cmd, SCB_DEVICE_RESET);
if (error != SUCCESS)
printk("aic7xxx_dev_reset returns 0x%x\n", error);
return (error);
}
/*
* Reset the SCSI bus.
*/
static int
ahc_linux_bus_reset(struct scsi_cmnd *cmd)
{
struct ahc_softc *ahc;
int found;
unsigned long flags;
ahc = *(struct ahc_softc **)cmd->device->host->hostdata;
ahc_lock(ahc, &flags);
found = ahc_reset_channel(ahc, scmd_channel(cmd) + 'A',
/*initiate reset*/TRUE);
ahc_unlock(ahc, &flags);
if (bootverbose)
printk("%s: SCSI bus reset delivered. "
"%d SCBs aborted.\n", ahc_name(ahc), found);
return SUCCESS;
}
struct scsi_host_template aic7xxx_driver_template = {
.module = THIS_MODULE,
.name = "aic7xxx",
.proc_name = "aic7xxx",
.show_info = ahc_linux_show_info,
.write_info = ahc_proc_write_seeprom,
.info = ahc_linux_info,
.queuecommand = ahc_linux_queue,
.eh_abort_handler = ahc_linux_abort,
.eh_device_reset_handler = ahc_linux_dev_reset,
.eh_bus_reset_handler = ahc_linux_bus_reset,
#if defined(__i386__)
.bios_param = ahc_linux_biosparam,
#endif
.can_queue = AHC_MAX_QUEUE,
.this_id = -1,
.max_sectors = 8192,
.cmd_per_lun = 2,
.slave_alloc = ahc_linux_slave_alloc,
.slave_configure = ahc_linux_slave_configure,
.target_alloc = ahc_linux_target_alloc,
.target_destroy = ahc_linux_target_destroy,
};
/**************************** Tasklet Handler *********************************/
/******************************** Macros **************************************/
#define BUILD_SCSIID(ahc, cmd) \
((((cmd)->device->id << TID_SHIFT) & TID) \
| (((cmd)->device->channel == 0) ? (ahc)->our_id : (ahc)->our_id_b) \
| (((cmd)->device->channel == 0) ? 0 : TWIN_CHNLB))
/******************************** Bus DMA *************************************/
int
ahc_dma_tag_create(struct ahc_softc *ahc, bus_dma_tag_t parent,
bus_size_t alignment, bus_size_t boundary,
dma_addr_t lowaddr, dma_addr_t highaddr,
bus_dma_filter_t *filter, void *filterarg,
bus_size_t maxsize, int nsegments,
bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag)
{
bus_dma_tag_t dmat;
dmat = kmalloc(sizeof(*dmat), GFP_ATOMIC);
if (dmat == NULL)
return (ENOMEM);
/*
* Linux is very simplistic about DMA memory. For now don't
* maintain all specification information. Once Linux supplies
* better facilities for doing these operations, or the
* needs of this particular driver change, we might need to do
* more here.
*/
dmat->alignment = alignment;
dmat->boundary = boundary;
dmat->maxsize = maxsize;
*ret_tag = dmat;
return (0);
}
void
ahc_dma_tag_destroy(struct ahc_softc *ahc, bus_dma_tag_t dmat)
{
kfree(dmat);
}
int
ahc_dmamem_alloc(struct ahc_softc *ahc, bus_dma_tag_t dmat, void** vaddr,
int flags, bus_dmamap_t *mapp)
{
/* XXX: check if we really need the GFP_ATOMIC and unwind this mess! */
*vaddr = dma_alloc_coherent(ahc->dev, dmat->maxsize, mapp, GFP_ATOMIC);
if (*vaddr == NULL)
return ENOMEM;
return 0;
}
void
ahc_dmamem_free(struct ahc_softc *ahc, bus_dma_tag_t dmat,
void* vaddr, bus_dmamap_t map)
{
dma_free_coherent(ahc->dev, dmat->maxsize, vaddr, map);
}
int
ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t dmat, bus_dmamap_t map,
void *buf, bus_size_t buflen, bus_dmamap_callback_t *cb,
void *cb_arg, int flags)
{
/*
* Assume for now that this will only be used during
* initialization and not for per-transaction buffer mapping.
*/
bus_dma_segment_t stack_sg;
stack_sg.ds_addr = map;
stack_sg.ds_len = dmat->maxsize;
cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0);
return (0);
}
void
ahc_dmamap_destroy(struct ahc_softc *ahc, bus_dma_tag_t dmat, bus_dmamap_t map)
{
}
int
ahc_dmamap_unload(struct ahc_softc *ahc, bus_dma_tag_t dmat, bus_dmamap_t map)
{
/* Nothing to do */
return (0);
}
static void
ahc_linux_setup_tag_info_global(char *p)
{
int tags, i, j;
tags = simple_strtoul(p + 1, NULL, 0) & 0xff;
printk("Setting Global Tags= %d\n", tags);
for (i = 0; i < ARRAY_SIZE(aic7xxx_tag_info); i++) {
for (j = 0; j < AHC_NUM_TARGETS; j++) {
aic7xxx_tag_info[i].tag_commands[j] = tags;
}
}
}
static void
ahc_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value)
{
if ((instance >= 0) && (targ >= 0)
&& (instance < ARRAY_SIZE(aic7xxx_tag_info))
&& (targ < AHC_NUM_TARGETS)) {
aic7xxx_tag_info[instance].tag_commands[targ] = value & 0xff;
if (bootverbose)
printk("tag_info[%d:%d] = %d\n", instance, targ, value);
}
}
static char *
ahc_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth,
void (*callback)(u_long, int, int, int32_t),
u_long callback_arg)
{
char *tok_end;
char *tok_end2;
int i;
int instance;
int targ;
int done;
char tok_list[] = {'.', ',', '{', '}', '\0'};
/* All options use a ':' name/arg separator */
if (*opt_arg != ':')
return (opt_arg);
opt_arg++;
instance = -1;
targ = -1;
done = FALSE;
/*
* Restore separator that may be in
* the middle of our option argument.
*/
tok_end = strchr(opt_arg, '\0');
if (tok_end < end)
*tok_end = ',';
while (!done) {
switch (*opt_arg) {
case '{':
if (instance == -1) {
instance = 0;
} else {
if (depth > 1) {
if (targ == -1)
targ = 0;
} else {
printk("Malformed Option %s\n",
opt_name);
done = TRUE;
}
}
opt_arg++;
break;
case '}':
if (targ != -1)
targ = -1;
else if (instance != -1)
instance = -1;
opt_arg++;
break;
case ',':
case '.':
if (instance == -1)
done = TRUE;
else if (targ >= 0)
targ++;
else if (instance >= 0)
instance++;
opt_arg++;
break;
case '\0':
done = TRUE;
break;
default:
tok_end = end;
for (i = 0; tok_list[i]; i++) {
tok_end2 = strchr(opt_arg, tok_list[i]);
if ((tok_end2) && (tok_end2 < tok_end))
tok_end = tok_end2;
}
callback(callback_arg, instance, targ,
simple_strtol(opt_arg, NULL, 0));
opt_arg = tok_end;
break;
}
}
return (opt_arg);
}
/*
* Handle Linux boot parameters. This routine allows for assigning a value
* to a parameter with a ':' between the parameter and the value.
* ie. aic7xxx=stpwlev:1,extended
*/
static int
aic7xxx_setup(char *s)
{
int i, n;
char *p;
char *end;
static const struct {
const char *name;
uint32_t *flag;
} options[] = {
{ "extended", &aic7xxx_extended },
{ "no_reset", &aic7xxx_no_reset },
{ "verbose", &aic7xxx_verbose },
{ "allow_memio", &aic7xxx_allow_memio},
#ifdef AHC_DEBUG
{ "debug", &ahc_debug },
#endif
{ "periodic_otag", &aic7xxx_periodic_otag },
{ "pci_parity", &aic7xxx_pci_parity },
{ "seltime", &aic7xxx_seltime },
{ "tag_info", NULL },
{ "global_tag_depth", NULL },
{ "dv", NULL }
};
end = strchr(s, '\0');
/*
* XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE
* will never be 0 in this case.
*/
n = 0;
while ((p = strsep(&s, ",.")) != NULL) {
if (*p == '\0')
continue;
for (i = 0; i < ARRAY_SIZE(options); i++) {
n = strlen(options[i].name);
if (strncmp(options[i].name, p, n) == 0)
break;
}
if (i == ARRAY_SIZE(options))
continue;
if (strncmp(p, "global_tag_depth", n) == 0) {
ahc_linux_setup_tag_info_global(p + n);
} else if (strncmp(p, "tag_info", n) == 0) {
s = ahc_parse_brace_option("tag_info", p + n, end,
2, ahc_linux_setup_tag_info, 0);
} else if (p[n] == ':') {
*(options[i].flag) = simple_strtoul(p + n + 1, NULL, 0);
} else if (strncmp(p, "verbose", n) == 0) {
*(options[i].flag) = 1;
} else {
*(options[i].flag) ^= 0xFFFFFFFF;
}
}
return 1;
}
__setup("aic7xxx=", aic7xxx_setup);
uint32_t aic7xxx_verbose;
int
ahc_linux_register_host(struct ahc_softc *ahc, struct scsi_host_template *template)
{
char buf[80];
struct Scsi_Host *host;
char *new_name;
u_long s;
int retval;
template->name = ahc->description;
host = scsi_host_alloc(template, sizeof(struct ahc_softc *));
if (host == NULL)
return (ENOMEM);
*((struct ahc_softc **)host->hostdata) = ahc;
ahc->platform_data->host = host;
host->can_queue = AHC_MAX_QUEUE;
host->cmd_per_lun = 2;
/* XXX No way to communicate the ID for multiple channels */
host->this_id = ahc->our_id;
host->irq = ahc->platform_data->irq;
host->max_id = (ahc->features & AHC_WIDE) ? 16 : 8;
host->max_lun = AHC_NUM_LUNS;
host->max_channel = (ahc->features & AHC_TWIN) ? 1 : 0;
host->sg_tablesize = AHC_NSEG;
ahc_lock(ahc, &s);
ahc_set_unit(ahc, ahc_linux_unit++);
ahc_unlock(ahc, &s);
sprintf(buf, "scsi%d", host->host_no);
new_name = kmalloc(strlen(buf) + 1, GFP_ATOMIC);
if (new_name != NULL) {
strcpy(new_name, buf);
ahc_set_name(ahc, new_name);
}
host->unique_id = ahc->unit;
ahc_linux_initialize_scsi_bus(ahc);
ahc_intr_enable(ahc, TRUE);
host->transportt = ahc_linux_transport_template;
retval = scsi_add_host(host, ahc->dev);
if (retval) {
printk(KERN_WARNING "aic7xxx: scsi_add_host failed\n");
scsi_host_put(host);
return retval;
}
scsi_scan_host(host);
return 0;
}
/*
* Place the SCSI bus into a known state by either resetting it,
* or forcing transfer negotiations on the next command to any
* target.
*/
static void
ahc_linux_initialize_scsi_bus(struct ahc_softc *ahc)
{
int i;
int numtarg;
unsigned long s;
i = 0;
numtarg = 0;
ahc_lock(ahc, &s);
if (aic7xxx_no_reset != 0)
ahc->flags &= ~(AHC_RESET_BUS_A|AHC_RESET_BUS_B);
if ((ahc->flags & AHC_RESET_BUS_A) != 0)
ahc_reset_channel(ahc, 'A', /*initiate_reset*/TRUE);
else
numtarg = (ahc->features & AHC_WIDE) ? 16 : 8;
if ((ahc->features & AHC_TWIN) != 0) {
if ((ahc->flags & AHC_RESET_BUS_B) != 0) {
ahc_reset_channel(ahc, 'B', /*initiate_reset*/TRUE);
} else {
if (numtarg == 0)
i = 8;
numtarg += 8;
}
}
/*
* Force negotiation to async for all targets that
* will not see an initial bus reset.
*/
for (; i < numtarg; i++) {
struct ahc_devinfo devinfo;
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
u_int our_id;
u_int target_id;
char channel;
channel = 'A';
our_id = ahc->our_id;
target_id = i;
if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
channel = 'B';
our_id = ahc->our_id_b;
target_id = i % 8;
}
tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
target_id, &tstate);
ahc_compile_devinfo(&devinfo, our_id, target_id,
CAM_LUN_WILDCARD, channel, ROLE_INITIATOR);
ahc_update_neg_request(ahc, &devinfo, tstate,
tinfo, AHC_NEG_ALWAYS);
}
ahc_unlock(ahc, &s);
/* Give the bus some time to recover */
if ((ahc->flags & (AHC_RESET_BUS_A|AHC_RESET_BUS_B)) != 0) {
ahc_linux_freeze_simq(ahc);
msleep(AIC7XXX_RESET_DELAY);
ahc_linux_release_simq(ahc);
}
}
int
ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
{
ahc->platform_data =
kzalloc(sizeof(struct ahc_platform_data), GFP_ATOMIC);
if (ahc->platform_data == NULL)
return (ENOMEM);
ahc->platform_data->irq = AHC_LINUX_NOIRQ;
ahc_lockinit(ahc);
ahc->seltime = (aic7xxx_seltime & 0x3) << 4;
ahc->seltime_b = (aic7xxx_seltime & 0x3) << 4;
if (aic7xxx_pci_parity == 0)
ahc->flags |= AHC_DISABLE_PCI_PERR;
return (0);
}
void
ahc_platform_free(struct ahc_softc *ahc)
{
struct scsi_target *starget;
int i;
if (ahc->platform_data != NULL) {
/* destroy all of the device and target objects */
for (i = 0; i < AHC_NUM_TARGETS; i++) {
starget = ahc->platform_data->starget[i];
if (starget != NULL) {
ahc->platform_data->starget[i] = NULL;
}
}
if (ahc->platform_data->irq != AHC_LINUX_NOIRQ)
free_irq(ahc->platform_data->irq, ahc);
if (ahc->tag == BUS_SPACE_PIO
&& ahc->bsh.ioport != 0)
release_region(ahc->bsh.ioport, 256);
if (ahc->tag == BUS_SPACE_MEMIO
&& ahc->bsh.maddr != NULL) {
iounmap(ahc->bsh.maddr);
release_mem_region(ahc->platform_data->mem_busaddr,
0x1000);
}
if (ahc->platform_data->host)
scsi_host_put(ahc->platform_data->host);
kfree(ahc->platform_data);
}
}
void
ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb)
{
ahc_platform_abort_scbs(ahc, SCB_GET_TARGET(ahc, scb),
SCB_GET_CHANNEL(ahc, scb),
SCB_GET_LUN(scb), SCB_LIST_NULL,
ROLE_UNKNOWN, CAM_REQUEUE_REQ);
}
void
ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
struct ahc_devinfo *devinfo, ahc_queue_alg alg)
{
struct ahc_linux_device *dev;
int was_queuing;
int now_queuing;
if (sdev == NULL)
return;
dev = scsi_transport_device_data(sdev);
was_queuing = dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED);
switch (alg) {
default:
case AHC_QUEUE_NONE:
now_queuing = 0;
break;
case AHC_QUEUE_BASIC:
now_queuing = AHC_DEV_Q_BASIC;
break;
case AHC_QUEUE_TAGGED:
now_queuing = AHC_DEV_Q_TAGGED;
break;
}
if ((dev->flags & AHC_DEV_FREEZE_TIL_EMPTY) == 0
&& (was_queuing != now_queuing)
&& (dev->active != 0)) {
dev->flags |= AHC_DEV_FREEZE_TIL_EMPTY;
dev->qfrozen++;
}
dev->flags &= ~(AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED|AHC_DEV_PERIODIC_OTAG);
if (now_queuing) {
u_int usertags;
usertags = ahc_linux_user_tagdepth(ahc, devinfo);
if (!was_queuing) {
/*
* Start out aggressively and allow our
* dynamic queue depth algorithm to take
* care of the rest.
*/
dev->maxtags = usertags;
dev->openings = dev->maxtags - dev->active;
}
if (dev->maxtags == 0) {
/*
* Queueing is disabled by the user.
*/
dev->openings = 1;
} else if (alg == AHC_QUEUE_TAGGED) {
dev->flags |= AHC_DEV_Q_TAGGED;
if (aic7xxx_periodic_otag != 0)
dev->flags |= AHC_DEV_PERIODIC_OTAG;
} else
dev->flags |= AHC_DEV_Q_BASIC;
} else {
/* We can only have one opening. */
dev->maxtags = 0;
dev->openings = 1 - dev->active;
}
switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) {
case AHC_DEV_Q_BASIC:
case AHC_DEV_Q_TAGGED:
scsi_change_queue_depth(sdev,
dev->openings + dev->active);
break;
default:
/*
* We allow the OS to queue 2 untagged transactions to
* us at any time even though we can only execute them
* serially on the controller/device. This should
* remove some latency.
*/
scsi_change_queue_depth(sdev, 2);
break;
}
}
int
ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status)
{
return 0;
}
static u_int
ahc_linux_user_tagdepth(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
static int warned_user;
u_int tags;
tags = 0;
if ((ahc->user_discenable & devinfo->target_mask) != 0) {
if (ahc->unit >= ARRAY_SIZE(aic7xxx_tag_info)) {
if (warned_user == 0) {
printk(KERN_WARNING
"aic7xxx: WARNING: Insufficient tag_info instances\n"
"aic7xxx: for installed controllers. Using defaults\n"
"aic7xxx: Please update the aic7xxx_tag_info array in\n"
"aic7xxx: the aic7xxx_osm..c source file.\n");
warned_user++;
}
tags = AHC_MAX_QUEUE;
} else {
adapter_tag_info_t *tag_info;
tag_info = &aic7xxx_tag_info[ahc->unit];
tags = tag_info->tag_commands[devinfo->target_offset];
if (tags > AHC_MAX_QUEUE)
tags = AHC_MAX_QUEUE;
}
}
return (tags);
}
/*
* Determines the queue depth for a given device.
*/
static void
ahc_linux_device_queue_depth(struct scsi_device *sdev)
{
struct ahc_devinfo devinfo;
u_int tags;
struct ahc_softc *ahc = *((struct ahc_softc **)sdev->host->hostdata);
ahc_compile_devinfo(&devinfo,
sdev->sdev_target->channel == 0
? ahc->our_id : ahc->our_id_b,
sdev->sdev_target->id, sdev->lun,
sdev->sdev_target->channel == 0 ? 'A' : 'B',
ROLE_INITIATOR);
tags = ahc_linux_user_tagdepth(ahc, &devinfo);
if (tags != 0 && sdev->tagged_supported != 0) {
ahc_platform_set_tags(ahc, sdev, &devinfo, AHC_QUEUE_TAGGED);
ahc_send_async(ahc, devinfo.channel, devinfo.target,
devinfo.lun, AC_TRANSFER_NEG);
ahc_print_devinfo(ahc, &devinfo);
printk("Tagged Queuing enabled. Depth %d\n", tags);
} else {
ahc_platform_set_tags(ahc, sdev, &devinfo, AHC_QUEUE_NONE);
ahc_send_async(ahc, devinfo.channel, devinfo.target,
devinfo.lun, AC_TRANSFER_NEG);
}
}
static int
ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev,
struct scsi_cmnd *cmd)
{
struct scb *scb;
struct hardware_scb *hscb;
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
uint16_t mask;
struct scb_tailq *untagged_q = NULL;
int nseg;
/*
* Schedule us to run later. The only reason we are not
* running is because the whole controller Q is frozen.
*/
if (ahc->platform_data->qfrozen != 0)
return SCSI_MLQUEUE_HOST_BUSY;
/*
* We only allow one untagged transaction
* per target in the initiator role unless
* we are storing a full busy target *lun*
* table in SCB space.
*/
if (!(cmd->flags & SCMD_TAGGED)
&& (ahc->features & AHC_SCB_BTT) == 0) {
int target_offset;
target_offset = cmd->device->id + cmd->device->channel * 8;
untagged_q = &(ahc->untagged_queues[target_offset]);
if (!TAILQ_EMPTY(untagged_q))
/* if we're already executing an untagged command
* we're busy to another */
return SCSI_MLQUEUE_DEVICE_BUSY;
}
nseg = scsi_dma_map(cmd);
if (nseg < 0)
return SCSI_MLQUEUE_HOST_BUSY;
/*
* Get an scb to use.
*/
scb = ahc_get_scb(ahc);
if (!scb) {
scsi_dma_unmap(cmd);
return SCSI_MLQUEUE_HOST_BUSY;
}
scb->io_ctx = cmd;
scb->platform_data->dev = dev;
hscb = scb->hscb;
cmd->host_scribble = (char *)scb;
/*
* Fill out basics of the HSCB.
*/
hscb->control = 0;
hscb->scsiid = BUILD_SCSIID(ahc, cmd);
hscb->lun = cmd->device->lun;
mask = SCB_GET_TARGET_MASK(ahc, scb);
tinfo = ahc_fetch_transinfo(ahc, SCB_GET_CHANNEL(ahc, scb),
SCB_GET_OUR_ID(scb),
SCB_GET_TARGET(ahc, scb), &tstate);
hscb->scsirate = tinfo->scsirate;
hscb->scsioffset = tinfo->curr.offset;
if ((tstate->ultraenb & mask) != 0)
hscb->control |= ULTRAENB;
if ((ahc->user_discenable & mask) != 0)
hscb->control |= DISCENB;
if ((tstate->auto_negotiate & mask) != 0) {
scb->flags |= SCB_AUTO_NEGOTIATE;
scb->hscb->control |= MK_MESSAGE;
}
if ((dev->flags & (AHC_DEV_Q_TAGGED|AHC_DEV_Q_BASIC)) != 0) {
if (dev->commands_since_idle_or_otag == AHC_OTAG_THRESH
&& (dev->flags & AHC_DEV_Q_TAGGED) != 0) {
hscb->control |= ORDERED_QUEUE_TAG;
dev->commands_since_idle_or_otag = 0;
} else {
hscb->control |= SIMPLE_QUEUE_TAG;
}
}
hscb->cdb_len = cmd->cmd_len;
if (hscb->cdb_len <= 12) {
memcpy(hscb->shared_data.cdb, cmd->cmnd, hscb->cdb_len);
} else {
memcpy(hscb->cdb32, cmd->cmnd, hscb->cdb_len);
scb->flags |= SCB_CDB32_PTR;
}
scb->platform_data->xfer_len = 0;
ahc_set_residual(scb, 0);
ahc_set_sense_residual(scb, 0);
scb->sg_count = 0;
if (nseg > 0) {
struct ahc_dma_seg *sg;
struct scatterlist *cur_seg;
int i;
/* Copy the segments into the SG list. */
sg = scb->sg_list;
/*
* The sg_count may be larger than nseg if
* a transfer crosses a 32bit page.
*/
scsi_for_each_sg(cmd, cur_seg, nseg, i) {
dma_addr_t addr;
bus_size_t len;
int consumed;
addr = sg_dma_address(cur_seg);
len = sg_dma_len(cur_seg);
consumed = ahc_linux_map_seg(ahc, scb,
sg, addr, len);
sg += consumed;
scb->sg_count += consumed;
}
sg--;
sg->len |= ahc_htole32(AHC_DMA_LAST_SEG);
/*
* Reset the sg list pointer.
*/
scb->hscb->sgptr =
ahc_htole32(scb->sg_list_phys | SG_FULL_RESID);
/*
* Copy the first SG into the "current"
* data pointer area.
*/
scb->hscb->dataptr = scb->sg_list->addr;
scb->hscb->datacnt = scb->sg_list->len;
} else {
scb->hscb->sgptr = ahc_htole32(SG_LIST_NULL);
scb->hscb->dataptr = 0;
scb->hscb->datacnt = 0;
scb->sg_count = 0;
}
LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links);
dev->openings--;
dev->active++;
dev->commands_issued++;
if ((dev->flags & AHC_DEV_PERIODIC_OTAG) != 0)
dev->commands_since_idle_or_otag++;
scb->flags |= SCB_ACTIVE;
if (untagged_q) {
TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
scb->flags |= SCB_UNTAGGEDQ;
}
ahc_queue_scb(ahc, scb);
return 0;
}
/*
* SCSI controller interrupt handler.
*/
irqreturn_t
ahc_linux_isr(int irq, void *dev_id)
{
struct ahc_softc *ahc;
u_long flags;
int ours;
ahc = (struct ahc_softc *) dev_id;
ahc_lock(ahc, &flags);
ours = ahc_intr(ahc);
ahc_unlock(ahc, &flags);
return IRQ_RETVAL(ours);
}
void
ahc_platform_flushwork(struct ahc_softc *ahc)
{
}
void
ahc_send_async(struct ahc_softc *ahc, char channel,
u_int target, u_int lun, ac_code code)
{
switch (code) {
case AC_TRANSFER_NEG:
{
struct scsi_target *starget;
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
int target_offset;
unsigned int target_ppr_options;
BUG_ON(target == CAM_TARGET_WILDCARD);
tinfo = ahc_fetch_transinfo(ahc, channel,
channel == 'A' ? ahc->our_id
: ahc->our_id_b,
target, &tstate);
/*
* Don't bother reporting results while
* negotiations are still pending.
*/
if (tinfo->curr.period != tinfo->goal.period
|| tinfo->curr.width != tinfo->goal.width
|| tinfo->curr.offset != tinfo->goal.offset
|| tinfo->curr.ppr_options != tinfo->goal.ppr_options)
if (bootverbose == 0)
break;
/*
* Don't bother reporting results that
* are identical to those last reported.
*/
target_offset = target;
if (channel == 'B')
target_offset += 8;
starget = ahc->platform_data->starget[target_offset];
if (starget == NULL)
break;
target_ppr_options =
(spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0)
+ (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0)
+ (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0);
if (tinfo->curr.period == spi_period(starget)
&& tinfo->curr.width == spi_width(starget)
&& tinfo->curr.offset == spi_offset(starget)
&& tinfo->curr.ppr_options == target_ppr_options)
if (bootverbose == 0)
break;
spi_period(starget) = tinfo->curr.period;
spi_width(starget) = tinfo->curr.width;
spi_offset(starget) = tinfo->curr.offset;
spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ ? 1 : 0;
spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ ? 1 : 0;
spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ ? 1 : 0;
spi_display_xfer_agreement(starget);
break;
}
case AC_SENT_BDR:
{
WARN_ON(lun != CAM_LUN_WILDCARD);
scsi_report_device_reset(ahc->platform_data->host,
channel - 'A', target);
break;
}
case AC_BUS_RESET:
if (ahc->platform_data->host != NULL) {
scsi_report_bus_reset(ahc->platform_data->host,
channel - 'A');
}
break;
default:
panic("ahc_send_async: Unexpected async event");
}
}
/*
* Calls the higher level scsi done function and frees the scb.
*/
void
ahc_done(struct ahc_softc *ahc, struct scb *scb)
{
struct scsi_cmnd *cmd;
struct ahc_linux_device *dev;
LIST_REMOVE(scb, pending_links);
if ((scb->flags & SCB_UNTAGGEDQ) != 0) {
struct scb_tailq *untagged_q;
int target_offset;
target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
untagged_q = &(ahc->untagged_queues[target_offset]);
TAILQ_REMOVE(untagged_q, scb, links.tqe);
BUG_ON(!TAILQ_EMPTY(untagged_q));
} else if ((scb->flags & SCB_ACTIVE) == 0) {
/*
* Transactions aborted from the untagged queue may
* not have been dispatched to the controller, so
* only check the SCB_ACTIVE flag for tagged transactions.
*/
printk("SCB %d done'd twice\n", scb->hscb->tag);
ahc_dump_card_state(ahc);
panic("Stopping for safety");
}
cmd = scb->io_ctx;
dev = scb->platform_data->dev;
dev->active--;
dev->openings++;
if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) {
cmd->result &= ~(CAM_DEV_QFRZN << 16);
dev->qfrozen--;
}
ahc_linux_unmap_scb(ahc, scb);
/*
* Guard against stale sense data.
* The Linux mid-layer assumes that sense
* was retrieved anytime the first byte of
* the sense buffer looks "sane".
*/
cmd->sense_buffer[0] = 0;
if (ahc_get_transaction_status(scb) == CAM_REQ_INPROG) {
#ifdef AHC_REPORT_UNDERFLOWS
uint32_t amount_xferred;
amount_xferred =
ahc_get_transfer_length(scb) - ahc_get_residual(scb);
#endif
if ((scb->flags & SCB_TRANSMISSION_ERROR) != 0) {
#ifdef AHC_DEBUG
if ((ahc_debug & AHC_SHOW_MISC) != 0) {
ahc_print_path(ahc, scb);
printk("Set CAM_UNCOR_PARITY\n");
}
#endif
ahc_set_transaction_status(scb, CAM_UNCOR_PARITY);
#ifdef AHC_REPORT_UNDERFLOWS
/*
* This code is disabled by default as some
* clients of the SCSI system do not properly
* initialize the underflow parameter. This
* results in spurious termination of commands
* that complete as expected (e.g. underflow is
* allowed as command can return variable amounts
* of data.
*/
} else if (amount_xferred < scb->io_ctx->underflow) {
u_int i;
ahc_print_path(ahc, scb);
printk("CDB:");
for (i = 0; i < scb->io_ctx->cmd_len; i++)
printk(" 0x%x", scb->io_ctx->cmnd[i]);
printk("\n");
ahc_print_path(ahc, scb);
printk("Saw underflow (%ld of %ld bytes). "
"Treated as error\n",
ahc_get_residual(scb),
ahc_get_transfer_length(scb));
ahc_set_transaction_status(scb, CAM_DATA_RUN_ERR);
#endif
} else {
ahc_set_transaction_status(scb, CAM_REQ_CMP);
}
} else if (ahc_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) {
ahc_linux_handle_scsi_status(ahc, cmd->device, scb);
}
if (dev->openings == 1
&& ahc_get_transaction_status(scb) == CAM_REQ_CMP
&& ahc_get_scsi_status(scb) != SAM_STAT_TASK_SET_FULL)
dev->tag_success_count++;
/*
* Some devices deal with temporary internal resource
* shortages by returning queue full. When the queue
* full occurrs, we throttle back. Slowly try to get
* back to our previous queue depth.
*/
if ((dev->openings + dev->active) < dev->maxtags
&& dev->tag_success_count > AHC_TAG_SUCCESS_INTERVAL) {
dev->tag_success_count = 0;
dev->openings++;
}
if (dev->active == 0)
dev->commands_since_idle_or_otag = 0;
if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
printk("Recovery SCB completes\n");
if (ahc_get_transaction_status(scb) == CAM_BDR_SENT
|| ahc_get_transaction_status(scb) == CAM_REQ_ABORTED)
ahc_set_transaction_status(scb, CAM_CMD_TIMEOUT);
if (ahc->platform_data->eh_done)
complete(ahc->platform_data->eh_done);
}
ahc_free_scb(ahc, scb);
ahc_linux_queue_cmd_complete(ahc, cmd);
}
static void
ahc_linux_handle_scsi_status(struct ahc_softc *ahc,
struct scsi_device *sdev, struct scb *scb)
{
struct ahc_devinfo devinfo;
struct ahc_linux_device *dev = scsi_transport_device_data(sdev);
ahc_compile_devinfo(&devinfo,
ahc->our_id,
sdev->sdev_target->id, sdev->lun,
sdev->sdev_target->channel == 0 ? 'A' : 'B',
ROLE_INITIATOR);
/*
* We don't currently trust the mid-layer to
* properly deal with queue full or busy. So,
* when one occurs, we tell the mid-layer to
* unconditionally requeue the command to us
* so that we can retry it ourselves. We also
* implement our own throttling mechanism so
* we don't clobber the device with too many
* commands.
*/
switch (ahc_get_scsi_status(scb)) {
default:
break;
case SAM_STAT_CHECK_CONDITION:
case SAM_STAT_COMMAND_TERMINATED:
{
struct scsi_cmnd *cmd;
/*
* Copy sense information to the OS's cmd
* structure if it is available.
*/
cmd = scb->io_ctx;
if (scb->flags & SCB_SENSE) {
u_int sense_size;
sense_size = min(sizeof(struct scsi_sense_data)
- ahc_get_sense_residual(scb),
(u_long)SCSI_SENSE_BUFFERSIZE);
memcpy(cmd->sense_buffer,
ahc_get_sense_buf(ahc, scb), sense_size);
if (sense_size < SCSI_SENSE_BUFFERSIZE)
memset(&cmd->sense_buffer[sense_size], 0,
SCSI_SENSE_BUFFERSIZE - sense_size);
#ifdef AHC_DEBUG
if (ahc_debug & AHC_SHOW_SENSE) {
int i;
printk("Copied %d bytes of sense data:",
sense_size);
for (i = 0; i < sense_size; i++) {
if ((i & 0xF) == 0)
printk("\n");
printk("0x%x ", cmd->sense_buffer[i]);
}
printk("\n");
}
#endif
}
break;
}
case SAM_STAT_TASK_SET_FULL:
{
/*
* By the time the core driver has returned this
* command, all other commands that were queued
* to us but not the device have been returned.
* This ensures that dev->active is equal to
* the number of commands actually queued to
* the device.
*/
dev->tag_success_count = 0;
if (dev->active != 0) {
/*
* Drop our opening count to the number
* of commands currently outstanding.
*/
dev->openings = 0;
/*
ahc_print_path(ahc, scb);
printk("Dropping tag count to %d\n", dev->active);
*/
if (dev->active == dev->tags_on_last_queuefull) {
dev->last_queuefull_same_count++;
/*
* If we repeatedly see a queue full
* at the same queue depth, this
* device has a fixed number of tag
* slots. Lock in this tag depth
* so we stop seeing queue fulls from
* this device.
*/
if (dev->last_queuefull_same_count
== AHC_LOCK_TAGS_COUNT) {
dev->maxtags = dev->active;
ahc_print_path(ahc, scb);
printk("Locking max tag count at %d\n",
dev->active);
}
} else {
dev->tags_on_last_queuefull = dev->active;
dev->last_queuefull_same_count = 0;
}
ahc_set_transaction_status(scb, CAM_REQUEUE_REQ);
ahc_set_scsi_status(scb, SAM_STAT_GOOD);
ahc_platform_set_tags(ahc, sdev, &devinfo,
(dev->flags & AHC_DEV_Q_BASIC)
? AHC_QUEUE_BASIC : AHC_QUEUE_TAGGED);
break;
}
/*
* Drop down to a single opening, and treat this
* as if the target returned BUSY SCSI status.
*/
dev->openings = 1;
ahc_set_scsi_status(scb, SAM_STAT_BUSY);
ahc_platform_set_tags(ahc, sdev, &devinfo,
(dev->flags & AHC_DEV_Q_BASIC)
? AHC_QUEUE_BASIC : AHC_QUEUE_TAGGED);
break;
}
}
}
static void
ahc_linux_queue_cmd_complete(struct ahc_softc *ahc, struct scsi_cmnd *cmd)
{
/*
* Map CAM error codes into Linux Error codes. We
* avoid the conversion so that the DV code has the
* full error information available when making
* state change decisions.
*/
{
u_int new_status;
switch (ahc_cmd_get_transaction_status(cmd)) {
case CAM_REQ_INPROG:
case CAM_REQ_CMP:
case CAM_SCSI_STATUS_ERROR:
new_status = DID_OK;
break;
case CAM_REQ_ABORTED:
new_status = DID_ABORT;
break;
case CAM_BUSY:
new_status = DID_BUS_BUSY;
break;
case CAM_REQ_INVALID:
case CAM_PATH_INVALID:
new_status = DID_BAD_TARGET;
break;
case CAM_SEL_TIMEOUT:
new_status = DID_NO_CONNECT;
break;
case CAM_SCSI_BUS_RESET:
case CAM_BDR_SENT:
new_status = DID_RESET;
break;
case CAM_UNCOR_PARITY:
new_status = DID_PARITY;
break;
case CAM_CMD_TIMEOUT:
new_status = DID_TIME_OUT;
break;
case CAM_UA_ABORT:
case CAM_REQ_CMP_ERR:
case CAM_AUTOSENSE_FAIL:
case CAM_NO_HBA:
case CAM_DATA_RUN_ERR:
case CAM_UNEXP_BUSFREE:
case CAM_SEQUENCE_FAIL:
case CAM_CCB_LEN_ERR:
case CAM_PROVIDE_FAIL:
case CAM_REQ_TERMIO:
case CAM_UNREC_HBA_ERROR:
case CAM_REQ_TOO_BIG:
new_status = DID_ERROR;
break;
case CAM_REQUEUE_REQ:
new_status = DID_REQUEUE;
break;
default:
/* We should never get here */
new_status = DID_ERROR;
break;
}
ahc_cmd_set_transaction_status(cmd, new_status);
}
scsi_done(cmd);
}
static void
ahc_linux_freeze_simq(struct ahc_softc *ahc)
{
unsigned long s;
ahc_lock(ahc, &s);
ahc->platform_data->qfrozen++;
if (ahc->platform_data->qfrozen == 1) {
scsi_block_requests(ahc->platform_data->host);
/* XXX What about Twin channels? */
ahc_platform_abort_scbs(ahc, CAM_TARGET_WILDCARD, ALL_CHANNELS,
CAM_LUN_WILDCARD, SCB_LIST_NULL,
ROLE_INITIATOR, CAM_REQUEUE_REQ);
}
ahc_unlock(ahc, &s);
}
static void
ahc_linux_release_simq(struct ahc_softc *ahc)
{
u_long s;
int unblock_reqs;
unblock_reqs = 0;
ahc_lock(ahc, &s);
if (ahc->platform_data->qfrozen > 0)
ahc->platform_data->qfrozen--;
if (ahc->platform_data->qfrozen == 0)
unblock_reqs = 1;
ahc_unlock(ahc, &s);
/*
* There is still a race here. The mid-layer
* should keep its own freeze count and use
* a bottom half handler to run the queues
* so we can unblock with our own lock held.
*/
if (unblock_reqs)
scsi_unblock_requests(ahc->platform_data->host);
}
static int
ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
{
struct ahc_softc *ahc;
struct ahc_linux_device *dev;
struct scb *pending_scb;
u_int saved_scbptr;
u_int active_scb_index;
u_int last_phase;
u_int saved_scsiid;
u_int cdb_byte;
int retval;
int was_paused;
int paused;
int wait;
int disconnected;
unsigned long flags;
pending_scb = NULL;
paused = FALSE;
wait = FALSE;
ahc = *(struct ahc_softc **)cmd->device->host->hostdata;
scmd_printk(KERN_INFO, cmd, "Attempting to queue a%s message\n",
flag == SCB_ABORT ? "n ABORT" : " TARGET RESET");
printk("CDB:");
for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
printk(" 0x%x", cmd->cmnd[cdb_byte]);
printk("\n");
ahc_lock(ahc, &flags);
/*
* First determine if we currently own this command.
* Start by searching the device queue. If not found
* there, check the pending_scb list. If not found
* at all, and the system wanted us to just abort the
* command, return success.
*/
dev = scsi_transport_device_data(cmd->device);
if (dev == NULL) {
/*
* No target device for this command exists,
* so we must not still own the command.
*/
printk("%s:%d:%d:%d: Is not an active device\n",
ahc_name(ahc), cmd->device->channel, cmd->device->id,
(u8)cmd->device->lun);
retval = SUCCESS;
goto no_cmd;
}
if ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED)) == 0
&& ahc_search_untagged_queues(ahc, cmd, cmd->device->id,
cmd->device->channel + 'A',
(u8)cmd->device->lun,
CAM_REQ_ABORTED, SEARCH_COMPLETE) != 0) {
printk("%s:%d:%d:%d: Command found on untagged queue\n",
ahc_name(ahc), cmd->device->channel, cmd->device->id,
(u8)cmd->device->lun);
retval = SUCCESS;
goto done;
}
/*
* See if we can find a matching cmd in the pending list.
*/
LIST_FOREACH(pending_scb, &ahc->pending_scbs, pending_links) {
if (pending_scb->io_ctx == cmd)
break;
}
if (pending_scb == NULL && flag == SCB_DEVICE_RESET) {
/* Any SCB for this device will do for a target reset */
LIST_FOREACH(pending_scb, &ahc->pending_scbs, pending_links) {
if (ahc_match_scb(ahc, pending_scb, scmd_id(cmd),
scmd_channel(cmd) + 'A',
CAM_LUN_WILDCARD,
SCB_LIST_NULL, ROLE_INITIATOR))
break;
}
}
if (pending_scb == NULL) {
scmd_printk(KERN_INFO, cmd, "Command not found\n");
goto no_cmd;
}
if ((pending_scb->flags & SCB_RECOVERY_SCB) != 0) {
/*
* We can't queue two recovery actions using the same SCB
*/
retval = FAILED;
goto done;
}
/*
* Ensure that the card doesn't do anything
* behind our back and that we didn't "just" miss
* an interrupt that would affect this cmd.
*/
was_paused = ahc_is_paused(ahc);
ahc_pause_and_flushwork(ahc);
paused = TRUE;
if ((pending_scb->flags & SCB_ACTIVE) == 0) {
scmd_printk(KERN_INFO, cmd, "Command already completed\n");
goto no_cmd;
}
printk("%s: At time of recovery, card was %spaused\n",
ahc_name(ahc), was_paused ? "" : "not ");
ahc_dump_card_state(ahc);
disconnected = TRUE;
if (flag == SCB_ABORT) {
if (ahc_search_qinfifo(ahc, cmd->device->id,
cmd->device->channel + 'A',
cmd->device->lun,
pending_scb->hscb->tag,
ROLE_INITIATOR, CAM_REQ_ABORTED,
SEARCH_COMPLETE) > 0) {
printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
ahc_name(ahc), cmd->device->channel,
cmd->device->id, (u8)cmd->device->lun);
retval = SUCCESS;
goto done;
}
} else if (ahc_search_qinfifo(ahc, cmd->device->id,
cmd->device->channel + 'A',
cmd->device->lun,
pending_scb->hscb->tag,
ROLE_INITIATOR, /*status*/0,
SEARCH_COUNT) > 0) {
disconnected = FALSE;
}
if (disconnected && (ahc_inb(ahc, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) {
struct scb *bus_scb;
bus_scb = ahc_lookup_scb(ahc, ahc_inb(ahc, SCB_TAG));
if (bus_scb == pending_scb)
disconnected = FALSE;
else if (flag != SCB_ABORT
&& ahc_inb(ahc, SAVED_SCSIID) == pending_scb->hscb->scsiid
&& ahc_inb(ahc, SAVED_LUN) == SCB_GET_LUN(pending_scb))
disconnected = FALSE;
}
/*
* At this point, pending_scb is the scb associated with the
* passed in command. That command is currently active on the
* bus, is in the disconnected state, or we're hoping to find
* a command for the same target active on the bus to abuse to
* send a BDR. Queue the appropriate message based on which of
* these states we are in.
*/
last_phase = ahc_inb(ahc, LASTPHASE);
saved_scbptr = ahc_inb(ahc, SCBPTR);
active_scb_index = ahc_inb(ahc, SCB_TAG);
saved_scsiid = ahc_inb(ahc, SAVED_SCSIID);
if (last_phase != P_BUSFREE
&& (pending_scb->hscb->tag == active_scb_index
|| (flag == SCB_DEVICE_RESET
&& SCSIID_TARGET(ahc, saved_scsiid) == scmd_id(cmd)))) {
/*
* We're active on the bus, so assert ATN
* and hope that the target responds.
*/
pending_scb = ahc_lookup_scb(ahc, active_scb_index);
pending_scb->flags |= SCB_RECOVERY_SCB|flag;
ahc_outb(ahc, MSG_OUT, HOST_MSG);
ahc_outb(ahc, SCSISIGO, last_phase|ATNO);
scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n");
wait = TRUE;
} else if (disconnected) {
/*
* Actually re-queue this SCB in an attempt
* to select the device before it reconnects.
* In either case (selection or reselection),
* we will now issue the approprate message
* to the timed-out device.
*
* Set the MK_MESSAGE control bit indicating
* that we desire to send a message. We
* also set the disconnected flag since
* in the paging case there is no guarantee
* that our SCB control byte matches the
* version on the card. We don't want the
* sequencer to abort the command thinking
* an unsolicited reselection occurred.
*/
pending_scb->hscb->control |= MK_MESSAGE|DISCONNECTED;
pending_scb->flags |= SCB_RECOVERY_SCB|flag;
/*
* Remove any cached copy of this SCB in the
* disconnected list in preparation for the
* queuing of our abort SCB. We use the
* same element in the SCB, SCB_NEXT, for
* both the qinfifo and the disconnected list.
*/
ahc_search_disc_list(ahc, cmd->device->id,
cmd->device->channel + 'A',
cmd->device->lun, pending_scb->hscb->tag,
/*stop_on_first*/TRUE,
/*remove*/TRUE,
/*save_state*/FALSE);
/*
* In the non-paging case, the sequencer will
* never re-reference the in-core SCB.
* To make sure we are notified during
* reselection, set the MK_MESSAGE flag in
* the card's copy of the SCB.
*/
if ((ahc->flags & AHC_PAGESCBS) == 0) {
ahc_outb(ahc, SCBPTR, pending_scb->hscb->tag);
ahc_outb(ahc, SCB_CONTROL,
ahc_inb(ahc, SCB_CONTROL)|MK_MESSAGE);
}
/*
* Clear out any entries in the QINFIFO first
* so we are the next SCB for this target
* to run.
*/
ahc_search_qinfifo(ahc, cmd->device->id,
cmd->device->channel + 'A',
cmd->device->lun, SCB_LIST_NULL,
ROLE_INITIATOR, CAM_REQUEUE_REQ,
SEARCH_COMPLETE);
ahc_qinfifo_requeue_tail(ahc, pending_scb);
ahc_outb(ahc, SCBPTR, saved_scbptr);
ahc_print_path(ahc, pending_scb);
printk("Device is disconnected, re-queuing SCB\n");
wait = TRUE;
} else {
scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n");
retval = FAILED;
goto done;
}
no_cmd:
/*
* Our assumption is that if we don't have the command, no
* recovery action was required, so we return success. Again,
* the semantics of the mid-layer recovery engine are not
* well defined, so this may change in time.
*/
retval = SUCCESS;
done:
if (paused)
ahc_unpause(ahc);
if (wait) {
DECLARE_COMPLETION_ONSTACK(done);
ahc->platform_data->eh_done = &done;
ahc_unlock(ahc, &flags);
printk("Recovery code sleeping\n");
if (!wait_for_completion_timeout(&done, 5 * HZ)) {
ahc_lock(ahc, &flags);
ahc->platform_data->eh_done = NULL;
ahc_unlock(ahc, &flags);
printk("Timer Expired\n");
retval = FAILED;
}
printk("Recovery code awake\n");
} else
ahc_unlock(ahc, &flags);
return (retval);
}
static void ahc_linux_set_width(struct scsi_target *starget, int width)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
struct ahc_devinfo devinfo;
unsigned long flags;
ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
ahc_lock(ahc, &flags);
ahc_set_width(ahc, &devinfo, width, AHC_TRANS_GOAL, FALSE);
ahc_unlock(ahc, &flags);
}
static void ahc_linux_set_period(struct scsi_target *starget, int period)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
struct ahc_tmode_tstate *tstate;
struct ahc_initiator_tinfo *tinfo
= ahc_fetch_transinfo(ahc,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahc_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options;
unsigned long flags;
unsigned long offset = tinfo->goal.offset;
const struct ahc_syncrate *syncrate;
if (offset == 0)
offset = MAX_OFFSET;
if (period < 9)
period = 9; /* 12.5ns is our minimum */
if (period == 9) {
if (spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_DT_REQ;
else
/* need wide for DT and need DT for 12.5 ns */
period = 10;
}
ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
/* all PPR requests apart from QAS require wide transfers */
if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) {
if (spi_width(starget) == 0)
ppr_options &= MSG_EXT_PPR_QAS_REQ;
}
syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,
AHC_SYNCRATE_DT);
ahc_lock(ahc, &flags);
ahc_set_syncrate(ahc, &devinfo, syncrate, period, offset,
ppr_options, AHC_TRANS_GOAL, FALSE);
ahc_unlock(ahc, &flags);
}
static void ahc_linux_set_offset(struct scsi_target *starget, int offset)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
struct ahc_tmode_tstate *tstate;
struct ahc_initiator_tinfo *tinfo
= ahc_fetch_transinfo(ahc,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahc_devinfo devinfo;
unsigned int ppr_options = 0;
unsigned int period = 0;
unsigned long flags;
const struct ahc_syncrate *syncrate = NULL;
ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
if (offset != 0) {
syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,
AHC_SYNCRATE_DT);
period = tinfo->goal.period;
ppr_options = tinfo->goal.ppr_options;
}
ahc_lock(ahc, &flags);
ahc_set_syncrate(ahc, &devinfo, syncrate, period, offset,
ppr_options, AHC_TRANS_GOAL, FALSE);
ahc_unlock(ahc, &flags);
}
static void ahc_linux_set_dt(struct scsi_target *starget, int dt)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
struct ahc_tmode_tstate *tstate;
struct ahc_initiator_tinfo *tinfo
= ahc_fetch_transinfo(ahc,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahc_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_DT_REQ;
unsigned int period = tinfo->goal.period;
unsigned int width = tinfo->goal.width;
unsigned long flags;
const struct ahc_syncrate *syncrate;
if (dt && spi_max_width(starget)) {
ppr_options |= MSG_EXT_PPR_DT_REQ;
if (!width)
ahc_linux_set_width(starget, 1);
} else if (period == 9)
period = 10; /* if resetting DT, period must be >= 25ns */
ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,
AHC_SYNCRATE_DT);
ahc_lock(ahc, &flags);
ahc_set_syncrate(ahc, &devinfo, syncrate, period, tinfo->goal.offset,
ppr_options, AHC_TRANS_GOAL, FALSE);
ahc_unlock(ahc, &flags);
}
#if 0
/* FIXME: This code claims to support IU and QAS. However, the actual
* sequencer code and aic7xxx_core have no support for these parameters and
* will get into a bad state if they're negotiated. Do not enable this
* unless you know what you're doing */
static void ahc_linux_set_qas(struct scsi_target *starget, int qas)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
struct ahc_tmode_tstate *tstate;
struct ahc_initiator_tinfo *tinfo
= ahc_fetch_transinfo(ahc,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahc_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_QAS_REQ;
unsigned int period = tinfo->goal.period;
unsigned long flags;
struct ahc_syncrate *syncrate;
if (qas)
ppr_options |= MSG_EXT_PPR_QAS_REQ;
ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,
AHC_SYNCRATE_DT);
ahc_lock(ahc, &flags);
ahc_set_syncrate(ahc, &devinfo, syncrate, period, tinfo->goal.offset,
ppr_options, AHC_TRANS_GOAL, FALSE);
ahc_unlock(ahc, &flags);
}
static void ahc_linux_set_iu(struct scsi_target *starget, int iu)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
struct ahc_tmode_tstate *tstate;
struct ahc_initiator_tinfo *tinfo
= ahc_fetch_transinfo(ahc,
starget->channel + 'A',
shost->this_id, starget->id, &tstate);
struct ahc_devinfo devinfo;
unsigned int ppr_options = tinfo->goal.ppr_options
& ~MSG_EXT_PPR_IU_REQ;
unsigned int period = tinfo->goal.period;
unsigned long flags;
struct ahc_syncrate *syncrate;
if (iu)
ppr_options |= MSG_EXT_PPR_IU_REQ;
ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
syncrate = ahc_find_syncrate(ahc, &period, &ppr_options,
AHC_SYNCRATE_DT);
ahc_lock(ahc, &flags);
ahc_set_syncrate(ahc, &devinfo, syncrate, period, tinfo->goal.offset,
ppr_options, AHC_TRANS_GOAL, FALSE);
ahc_unlock(ahc, &flags);
}
#endif
static void ahc_linux_get_signalling(struct Scsi_Host *shost)
{
struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
unsigned long flags;
u8 mode;
if (!(ahc->features & AHC_ULTRA2)) {
/* non-LVD chipset, may not have SBLKCTL reg */
spi_signalling(shost) =
ahc->features & AHC_HVD ?
SPI_SIGNAL_HVD :
SPI_SIGNAL_SE;
return;
}
ahc_lock(ahc, &flags);
ahc_pause(ahc);
mode = ahc_inb(ahc, SBLKCTL);
ahc_unpause(ahc);
ahc_unlock(ahc, &flags);
if (mode & ENAB40)
spi_signalling(shost) = SPI_SIGNAL_LVD;
else if (mode & ENAB20)
spi_signalling(shost) = SPI_SIGNAL_SE;
else
spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
}
static struct spi_function_template ahc_linux_transport_functions = {
.set_offset = ahc_linux_set_offset,
.show_offset = 1,
.set_period = ahc_linux_set_period,
.show_period = 1,
.set_width = ahc_linux_set_width,
.show_width = 1,
.set_dt = ahc_linux_set_dt,
.show_dt = 1,
#if 0
.set_iu = ahc_linux_set_iu,
.show_iu = 1,
.set_qas = ahc_linux_set_qas,
.show_qas = 1,
#endif
.get_signalling = ahc_linux_get_signalling,
};
static int __init
ahc_linux_init(void)
{
/*
* If we've been passed any parameters, process them now.
*/
if (aic7xxx)
aic7xxx_setup(aic7xxx);
ahc_linux_transport_template =
spi_attach_transport(&ahc_linux_transport_functions);
if (!ahc_linux_transport_template)
return -ENODEV;
scsi_transport_reserve_device(ahc_linux_transport_template,
sizeof(struct ahc_linux_device));
ahc_linux_pci_init();
ahc_linux_eisa_init();
return 0;
}
static void
ahc_linux_exit(void)
{
ahc_linux_pci_exit();
ahc_linux_eisa_exit();
spi_release_transport(ahc_linux_transport_template);
}
module_init(ahc_linux_init);
module_exit(ahc_linux_exit);
|
linux-master
|
drivers/scsi/aic7xxx/aic7xxx_osm.c
|
/*
* Linux driver attachment glue for PCI based U320 controllers.
*
* Copyright (c) 2000-2001 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm_pci.c#25 $
*/
#include "aic79xx_osm.h"
#include "aic79xx_inline.h"
#include "aic79xx_pci.h"
/* Define the macro locally since it's different for different class of chips.
*/
#define ID(x) \
ID2C(x), \
ID2C(IDIROC(x))
static const struct pci_device_id ahd_linux_pci_id_table[] = {
/* aic7901 based controllers */
ID(ID_AHA_29320A),
ID(ID_AHA_29320ALP),
ID(ID_AHA_29320LPE),
/* aic7902 based controllers */
ID(ID_AHA_29320),
ID(ID_AHA_29320B),
ID(ID_AHA_29320LP),
ID(ID_AHA_39320),
ID(ID_AHA_39320_B),
ID(ID_AHA_39320A),
ID(ID_AHA_39320D),
ID(ID_AHA_39320D_HP),
ID(ID_AHA_39320D_B),
ID(ID_AHA_39320D_B_HP),
/* Generic chip probes for devices we don't know exactly. */
ID16(ID_AIC7901 & ID_9005_GENERIC_MASK),
ID(ID_AIC7901A & ID_DEV_VENDOR_MASK),
ID16(ID_AIC7902 & ID_9005_GENERIC_MASK),
{ 0 }
};
MODULE_DEVICE_TABLE(pci, ahd_linux_pci_id_table);
static int __maybe_unused
ahd_linux_pci_dev_suspend(struct device *dev)
{
struct ahd_softc *ahd = dev_get_drvdata(dev);
int rc;
if ((rc = ahd_suspend(ahd)))
return rc;
ahd_pci_suspend(ahd);
return rc;
}
static int __maybe_unused
ahd_linux_pci_dev_resume(struct device *dev)
{
struct ahd_softc *ahd = dev_get_drvdata(dev);
ahd_pci_resume(ahd);
ahd_resume(ahd);
return 0;
}
static void
ahd_linux_pci_dev_remove(struct pci_dev *pdev)
{
struct ahd_softc *ahd = pci_get_drvdata(pdev);
u_long s;
if (ahd->platform_data && ahd->platform_data->host)
scsi_remove_host(ahd->platform_data->host);
ahd_lock(ahd, &s);
ahd_intr_enable(ahd, FALSE);
ahd_unlock(ahd, &s);
ahd_free(ahd);
}
static void
ahd_linux_pci_inherit_flags(struct ahd_softc *ahd)
{
struct pci_dev *pdev = ahd->dev_softc, *master_pdev;
unsigned int master_devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0);
master_pdev = pci_get_slot(pdev->bus, master_devfn);
if (master_pdev) {
struct ahd_softc *master = pci_get_drvdata(master_pdev);
if (master) {
ahd->flags &= ~AHD_BIOS_ENABLED;
ahd->flags |= master->flags & AHD_BIOS_ENABLED;
} else
printk(KERN_ERR "aic79xx: no multichannel peer found!\n");
pci_dev_put(master_pdev);
}
}
static int
ahd_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
char buf[80];
struct ahd_softc *ahd;
ahd_dev_softc_t pci;
const struct ahd_pci_identity *entry;
char *name;
int error;
struct device *dev = &pdev->dev;
pci = pdev;
entry = ahd_find_pci_device(pci);
if (entry == NULL)
return (-ENODEV);
/*
* Allocate a softc for this card and
* set it up for attachment by our
* common detect routine.
*/
sprintf(buf, "ahd_pci:%d:%d:%d",
ahd_get_pci_bus(pci),
ahd_get_pci_slot(pci),
ahd_get_pci_function(pci));
name = kstrdup(buf, GFP_ATOMIC);
if (name == NULL)
return (-ENOMEM);
ahd = ahd_alloc(NULL, name);
if (ahd == NULL)
return (-ENOMEM);
if (pci_enable_device(pdev)) {
ahd_free(ahd);
return (-ENODEV);
}
pci_set_master(pdev);
if (sizeof(dma_addr_t) > 4) {
const u64 required_mask = dma_get_required_mask(dev);
if (required_mask > DMA_BIT_MASK(39) &&
dma_set_mask(dev, DMA_BIT_MASK(64)) == 0)
ahd->flags |= AHD_64BIT_ADDRESSING;
else if (required_mask > DMA_BIT_MASK(32) &&
dma_set_mask(dev, DMA_BIT_MASK(39)) == 0)
ahd->flags |= AHD_39BIT_ADDRESSING;
else
dma_set_mask(dev, DMA_BIT_MASK(32));
} else {
dma_set_mask(dev, DMA_BIT_MASK(32));
}
ahd->dev_softc = pci;
error = ahd_pci_config(ahd, entry);
if (error != 0) {
ahd_free(ahd);
return (-error);
}
/*
* Second Function PCI devices need to inherit some
* * settings from function 0.
*/
if ((ahd->features & AHD_MULTI_FUNC) && PCI_FUNC(pdev->devfn) != 0)
ahd_linux_pci_inherit_flags(ahd);
pci_set_drvdata(pdev, ahd);
ahd_linux_register_host(ahd, &aic79xx_driver_template);
return (0);
}
static SIMPLE_DEV_PM_OPS(ahd_linux_pci_dev_pm_ops,
ahd_linux_pci_dev_suspend,
ahd_linux_pci_dev_resume);
static struct pci_driver aic79xx_pci_driver = {
.name = "aic79xx",
.probe = ahd_linux_pci_dev_probe,
.driver.pm = &ahd_linux_pci_dev_pm_ops,
.remove = ahd_linux_pci_dev_remove,
.id_table = ahd_linux_pci_id_table
};
int
ahd_linux_pci_init(void)
{
return pci_register_driver(&aic79xx_pci_driver);
}
void
ahd_linux_pci_exit(void)
{
pci_unregister_driver(&aic79xx_pci_driver);
}
static int
ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd, resource_size_t *base,
resource_size_t *base2)
{
*base = pci_resource_start(ahd->dev_softc, 0);
/*
* This is really the 3rd bar and should be at index 2,
* but the Linux PCI code doesn't know how to "count" 64bit
* bars.
*/
*base2 = pci_resource_start(ahd->dev_softc, 3);
if (*base == 0 || *base2 == 0)
return (ENOMEM);
if (!request_region(*base, 256, "aic79xx"))
return (ENOMEM);
if (!request_region(*base2, 256, "aic79xx")) {
release_region(*base, 256);
return (ENOMEM);
}
return (0);
}
static int
ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
resource_size_t *bus_addr,
uint8_t __iomem **maddr)
{
resource_size_t start;
resource_size_t base_page;
u_long base_offset;
int error = 0;
if (aic79xx_allow_memio == 0)
return (ENOMEM);
if ((ahd->bugs & AHD_PCIX_MMAPIO_BUG) != 0)
return (ENOMEM);
start = pci_resource_start(ahd->dev_softc, 1);
base_page = start & PAGE_MASK;
base_offset = start - base_page;
if (start != 0) {
*bus_addr = start;
if (!request_mem_region(start, 0x1000, "aic79xx"))
error = ENOMEM;
if (!error) {
*maddr = ioremap(base_page, base_offset + 512);
if (*maddr == NULL) {
error = ENOMEM;
release_mem_region(start, 0x1000);
} else
*maddr += base_offset;
}
} else
error = ENOMEM;
return (error);
}
int
ahd_pci_map_registers(struct ahd_softc *ahd)
{
uint32_t command;
resource_size_t base;
uint8_t __iomem *maddr;
int error;
/*
* If its allowed, we prefer memory mapped access.
*/
command = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, 4);
command &= ~(PCIM_CMD_PORTEN|PCIM_CMD_MEMEN);
base = 0;
maddr = NULL;
error = ahd_linux_pci_reserve_mem_region(ahd, &base, &maddr);
if (error == 0) {
ahd->platform_data->mem_busaddr = base;
ahd->tags[0] = BUS_SPACE_MEMIO;
ahd->bshs[0].maddr = maddr;
ahd->tags[1] = BUS_SPACE_MEMIO;
ahd->bshs[1].maddr = maddr + 0x100;
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
command | PCIM_CMD_MEMEN, 4);
if (ahd_pci_test_register_access(ahd) != 0) {
printk("aic79xx: PCI Device %d:%d:%d "
"failed memory mapped test. Using PIO.\n",
ahd_get_pci_bus(ahd->dev_softc),
ahd_get_pci_slot(ahd->dev_softc),
ahd_get_pci_function(ahd->dev_softc));
iounmap(maddr);
release_mem_region(ahd->platform_data->mem_busaddr,
0x1000);
ahd->bshs[0].maddr = NULL;
maddr = NULL;
} else
command |= PCIM_CMD_MEMEN;
} else if (bootverbose) {
printk("aic79xx: PCI%d:%d:%d MEM region 0x%llx "
"unavailable. Cannot memory map device.\n",
ahd_get_pci_bus(ahd->dev_softc),
ahd_get_pci_slot(ahd->dev_softc),
ahd_get_pci_function(ahd->dev_softc),
(unsigned long long)base);
}
if (maddr == NULL) {
resource_size_t base2;
error = ahd_linux_pci_reserve_io_regions(ahd, &base, &base2);
if (error == 0) {
ahd->tags[0] = BUS_SPACE_PIO;
ahd->tags[1] = BUS_SPACE_PIO;
ahd->bshs[0].ioport = (u_long)base;
ahd->bshs[1].ioport = (u_long)base2;
command |= PCIM_CMD_PORTEN;
} else {
printk("aic79xx: PCI%d:%d:%d IO regions 0x%llx and "
"0x%llx unavailable. Cannot map device.\n",
ahd_get_pci_bus(ahd->dev_softc),
ahd_get_pci_slot(ahd->dev_softc),
ahd_get_pci_function(ahd->dev_softc),
(unsigned long long)base,
(unsigned long long)base2);
}
}
ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, command, 4);
return (error);
}
int
ahd_pci_map_int(struct ahd_softc *ahd)
{
int error;
error = request_irq(ahd->dev_softc->irq, ahd_linux_isr,
IRQF_SHARED, "aic79xx", ahd);
if (!error)
ahd->platform_data->irq = ahd->dev_softc->irq;
return (-error);
}
void
ahd_power_state_change(struct ahd_softc *ahd, ahd_power_state new_state)
{
pci_set_power_state(ahd->dev_softc, new_state);
}
|
linux-master
|
drivers/scsi/aic7xxx/aic79xx_osm_pci.c
|
/*
* Aic7xxx SCSI host adapter firmware assembler symbol table implementation
*
* Copyright (c) 1997 Justin T. Gibbs.
* Copyright (c) 2002 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_symbol.c#24 $
*
* $FreeBSD$
*/
#include <sys/types.h>
#include "aicdb.h"
#include <fcntl.h>
#include <inttypes.h>
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <ctype.h>
#include "aicasm_symbol.h"
#include "aicasm.h"
static DB *symtable;
symbol_t *
symbol_create(char *name)
{
symbol_t *new_symbol;
new_symbol = (symbol_t *)malloc(sizeof(symbol_t));
if (new_symbol == NULL) {
perror("Unable to create new symbol");
exit(EX_SOFTWARE);
}
memset(new_symbol, 0, sizeof(*new_symbol));
new_symbol->name = strdup(name);
if (new_symbol->name == NULL)
stop("Unable to strdup symbol name", EX_SOFTWARE);
new_symbol->type = UNINITIALIZED;
new_symbol->count = 1;
return (new_symbol);
}
void
symbol_delete(symbol_t *symbol)
{
if (symtable != NULL) {
DBT key;
key.data = symbol->name;
key.size = strlen(symbol->name);
symtable->del(symtable, &key, /*flags*/0);
}
switch(symbol->type) {
case SCBLOC:
case SRAMLOC:
case REGISTER:
if (symbol->info.rinfo != NULL)
free(symbol->info.rinfo);
break;
case ALIAS:
if (symbol->info.ainfo != NULL)
free(symbol->info.ainfo);
break;
case MASK:
case FIELD:
case ENUM:
case ENUM_ENTRY:
if (symbol->info.finfo != NULL) {
symlist_free(&symbol->info.finfo->symrefs);
free(symbol->info.finfo);
}
break;
case DOWNLOAD_CONST:
case CONST:
if (symbol->info.cinfo != NULL)
free(symbol->info.cinfo);
break;
case LABEL:
if (symbol->info.linfo != NULL)
free(symbol->info.linfo);
break;
case UNINITIALIZED:
default:
break;
}
free(symbol->name);
free(symbol);
}
void
symtable_open()
{
symtable = dbopen(/*filename*/NULL,
O_CREAT | O_NONBLOCK | O_RDWR, /*mode*/0, DB_HASH,
/*openinfo*/NULL);
if (symtable == NULL) {
perror("Symbol table creation failed");
exit(EX_SOFTWARE);
/* NOTREACHED */
}
}
void
symtable_close()
{
if (symtable != NULL) {
DBT key;
DBT data;
while (symtable->seq(symtable, &key, &data, R_FIRST) == 0) {
symbol_t *stored_ptr;
memcpy(&stored_ptr, data.data, sizeof(stored_ptr));
symbol_delete(stored_ptr);
}
symtable->close(symtable);
}
}
/*
* The semantics of get is to return an uninitialized symbol entry
* if a lookup fails.
*/
symbol_t *
symtable_get(char *name)
{
symbol_t *stored_ptr;
DBT key;
DBT data;
int retval;
key.data = (void *)name;
key.size = strlen(name);
if ((retval = symtable->get(symtable, &key, &data, /*flags*/0)) != 0) {
if (retval == -1) {
perror("Symbol table get operation failed");
exit(EX_SOFTWARE);
/* NOTREACHED */
} else if (retval == 1) {
/* Symbol wasn't found, so create a new one */
symbol_t *new_symbol;
new_symbol = symbol_create(name);
data.data = &new_symbol;
data.size = sizeof(new_symbol);
if (symtable->put(symtable, &key, &data,
/*flags*/0) !=0) {
perror("Symtable put failed");
exit(EX_SOFTWARE);
}
return (new_symbol);
} else {
perror("Unexpected return value from db get routine");
exit(EX_SOFTWARE);
/* NOTREACHED */
}
}
memcpy(&stored_ptr, data.data, sizeof(stored_ptr));
stored_ptr->count++;
data.data = &stored_ptr;
if (symtable->put(symtable, &key, &data, /*flags*/0) !=0) {
perror("Symtable put failed");
exit(EX_SOFTWARE);
}
return (stored_ptr);
}
symbol_node_t *
symlist_search(symlist_t *symlist, char *symname)
{
symbol_node_t *curnode;
curnode = SLIST_FIRST(symlist);
while(curnode != NULL) {
if (strcmp(symname, curnode->symbol->name) == 0)
break;
curnode = SLIST_NEXT(curnode, links);
}
return (curnode);
}
void
symlist_add(symlist_t *symlist, symbol_t *symbol, int how)
{
symbol_node_t *newnode;
newnode = (symbol_node_t *)malloc(sizeof(symbol_node_t));
if (newnode == NULL) {
stop("symlist_add: Unable to malloc symbol_node", EX_SOFTWARE);
/* NOTREACHED */
}
newnode->symbol = symbol;
if (how == SYMLIST_SORT) {
symbol_node_t *curnode;
int field;
field = FALSE;
switch(symbol->type) {
case REGISTER:
case SCBLOC:
case SRAMLOC:
break;
case FIELD:
case MASK:
case ENUM:
case ENUM_ENTRY:
field = TRUE;
break;
default:
stop("symlist_add: Invalid symbol type for sorting",
EX_SOFTWARE);
/* NOTREACHED */
}
curnode = SLIST_FIRST(symlist);
if (curnode == NULL
|| (field
&& (curnode->symbol->type > newnode->symbol->type
|| (curnode->symbol->type == newnode->symbol->type
&& (curnode->symbol->info.finfo->value >
newnode->symbol->info.finfo->value))))
|| (!field && (curnode->symbol->info.rinfo->address >
newnode->symbol->info.rinfo->address))) {
SLIST_INSERT_HEAD(symlist, newnode, links);
return;
}
while (1) {
if (SLIST_NEXT(curnode, links) == NULL) {
SLIST_INSERT_AFTER(curnode, newnode,
links);
break;
} else {
symbol_t *cursymbol;
cursymbol = SLIST_NEXT(curnode, links)->symbol;
if ((field
&& (cursymbol->type > symbol->type
|| (cursymbol->type == symbol->type
&& (cursymbol->info.finfo->value >
symbol->info.finfo->value))))
|| (!field
&& (cursymbol->info.rinfo->address >
symbol->info.rinfo->address))) {
SLIST_INSERT_AFTER(curnode, newnode,
links);
break;
}
}
curnode = SLIST_NEXT(curnode, links);
}
} else {
SLIST_INSERT_HEAD(symlist, newnode, links);
}
}
void
symlist_free(symlist_t *symlist)
{
symbol_node_t *node1, *node2;
node1 = SLIST_FIRST(symlist);
while (node1 != NULL) {
node2 = SLIST_NEXT(node1, links);
free(node1);
node1 = node2;
}
SLIST_INIT(symlist);
}
void
symlist_merge(symlist_t *symlist_dest, symlist_t *symlist_src1,
symlist_t *symlist_src2)
{
symbol_node_t *node;
*symlist_dest = *symlist_src1;
while((node = SLIST_FIRST(symlist_src2)) != NULL) {
SLIST_REMOVE_HEAD(symlist_src2, links);
SLIST_INSERT_HEAD(symlist_dest, node, links);
}
/* These are now empty */
SLIST_INIT(symlist_src1);
SLIST_INIT(symlist_src2);
}
void
aic_print_file_prologue(FILE *ofile)
{
if (ofile == NULL)
return;
fprintf(ofile,
"/*\n"
" * DO NOT EDIT - This file is automatically generated\n"
" * from the following source files:\n"
" *\n"
"%s */\n",
versions);
}
void
aic_print_include(FILE *dfile, char *include_file)
{
if (dfile == NULL)
return;
fprintf(dfile, "\n#include \"%s\"\n\n", include_file);
}
void
aic_print_reg_dump_types(FILE *ofile)
{
if (ofile == NULL)
return;
fprintf(ofile,
"typedef int (%sreg_print_t)(u_int, u_int *, u_int);\n"
"typedef struct %sreg_parse_entry {\n"
" char *name;\n"
" uint8_t value;\n"
" uint8_t mask;\n"
"} %sreg_parse_entry_t;\n"
"\n",
prefix, prefix, prefix);
}
static void
aic_print_reg_dump_start(FILE *dfile, symbol_node_t *regnode)
{
if (dfile == NULL)
return;
fprintf(dfile,
"static const %sreg_parse_entry_t %s_parse_table[] = {\n",
prefix,
regnode->symbol->name);
}
static void
aic_print_reg_dump_end(FILE *ofile, FILE *dfile,
symbol_node_t *regnode, u_int num_entries)
{
char *lower_name;
char *letter;
lower_name = strdup(regnode->symbol->name);
if (lower_name == NULL)
stop("Unable to strdup symbol name", EX_SOFTWARE);
for (letter = lower_name; *letter != '\0'; letter++)
*letter = tolower(*letter);
if (dfile != NULL) {
if (num_entries != 0)
fprintf(dfile,
"\n"
"};\n"
"\n");
fprintf(dfile,
"int\n"
"%s%s_print(u_int regvalue, u_int *cur_col, u_int wrap)\n"
"{\n"
" return (%sprint_register(%s%s, %d, \"%s\",\n"
" 0x%02x, regvalue, cur_col, wrap));\n"
"}\n"
"\n",
prefix,
lower_name,
prefix,
num_entries != 0 ? regnode->symbol->name : "NULL",
num_entries != 0 ? "_parse_table" : "",
num_entries,
regnode->symbol->name,
regnode->symbol->info.rinfo->address);
}
fprintf(ofile,
"#if AIC_DEBUG_REGISTERS\n"
"%sreg_print_t %s%s_print;\n"
"#else\n"
"#define %s%s_print(regvalue, cur_col, wrap) \\\n"
" %sprint_register(NULL, 0, \"%s\", 0x%02x, regvalue, cur_col, wrap)\n"
"#endif\n"
"\n",
prefix,
prefix,
lower_name,
prefix,
lower_name,
prefix,
regnode->symbol->name,
regnode->symbol->info.rinfo->address);
}
static void
aic_print_reg_dump_entry(FILE *dfile, symbol_node_t *curnode)
{
int num_tabs;
if (dfile == NULL)
return;
fprintf(dfile,
" { \"%s\",",
curnode->symbol->name);
num_tabs = 3 - (strlen(curnode->symbol->name) + 5) / 8;
while (num_tabs-- > 0)
fputc('\t', dfile);
fprintf(dfile, "0x%02x, 0x%02x }",
curnode->symbol->info.finfo->value,
curnode->symbol->info.finfo->mask);
}
void
symtable_dump(FILE *ofile, FILE *dfile)
{
/*
* Sort the registers by address with a simple insertion sort.
* Put bitmasks next to the first register that defines them.
* Put constants at the end.
*/
symlist_t registers;
symlist_t masks;
symlist_t constants;
symlist_t download_constants;
symlist_t aliases;
symlist_t exported_labels;
symbol_node_t *curnode;
symbol_node_t *regnode;
DBT key;
DBT data;
int flag;
int reg_count = 0, reg_used = 0;
u_int i;
if (symtable == NULL)
return;
SLIST_INIT(®isters);
SLIST_INIT(&masks);
SLIST_INIT(&constants);
SLIST_INIT(&download_constants);
SLIST_INIT(&aliases);
SLIST_INIT(&exported_labels);
flag = R_FIRST;
while (symtable->seq(symtable, &key, &data, flag) == 0) {
symbol_t *cursym;
memcpy(&cursym, data.data, sizeof(cursym));
switch(cursym->type) {
case REGISTER:
case SCBLOC:
case SRAMLOC:
symlist_add(®isters, cursym, SYMLIST_SORT);
break;
case MASK:
case FIELD:
case ENUM:
case ENUM_ENTRY:
symlist_add(&masks, cursym, SYMLIST_SORT);
break;
case CONST:
symlist_add(&constants, cursym,
SYMLIST_INSERT_HEAD);
break;
case DOWNLOAD_CONST:
symlist_add(&download_constants, cursym,
SYMLIST_INSERT_HEAD);
break;
case ALIAS:
symlist_add(&aliases, cursym,
SYMLIST_INSERT_HEAD);
break;
case LABEL:
if (cursym->info.linfo->exported == 0)
break;
symlist_add(&exported_labels, cursym,
SYMLIST_INSERT_HEAD);
break;
default:
break;
}
flag = R_NEXT;
}
/* Register dianostic functions/declarations first. */
aic_print_file_prologue(ofile);
aic_print_reg_dump_types(ofile);
aic_print_file_prologue(dfile);
aic_print_include(dfile, stock_include_file);
SLIST_FOREACH(curnode, ®isters, links) {
if (curnode->symbol->dont_generate_debug_code)
continue;
switch(curnode->symbol->type) {
case REGISTER:
case SCBLOC:
case SRAMLOC:
{
symlist_t *fields;
symbol_node_t *fieldnode;
int num_entries;
num_entries = 0;
reg_count++;
if (curnode->symbol->count == 1)
break;
fields = &curnode->symbol->info.rinfo->fields;
SLIST_FOREACH(fieldnode, fields, links) {
if (num_entries == 0)
aic_print_reg_dump_start(dfile,
curnode);
else if (dfile != NULL)
fputs(",\n", dfile);
num_entries++;
aic_print_reg_dump_entry(dfile, fieldnode);
}
aic_print_reg_dump_end(ofile, dfile,
curnode, num_entries);
reg_used++;
}
default:
break;
}
}
fprintf(stderr, "%s: %d of %d register definitions used\n", appname,
reg_used, reg_count);
/* Fold in the masks and bits */
while (SLIST_FIRST(&masks) != NULL) {
char *regname;
curnode = SLIST_FIRST(&masks);
SLIST_REMOVE_HEAD(&masks, links);
regnode = SLIST_FIRST(&curnode->symbol->info.finfo->symrefs);
regname = regnode->symbol->name;
regnode = symlist_search(®isters, regname);
SLIST_INSERT_AFTER(regnode, curnode, links);
}
/* Add the aliases */
while (SLIST_FIRST(&aliases) != NULL) {
char *regname;
curnode = SLIST_FIRST(&aliases);
SLIST_REMOVE_HEAD(&aliases, links);
regname = curnode->symbol->info.ainfo->parent->name;
regnode = symlist_search(®isters, regname);
SLIST_INSERT_AFTER(regnode, curnode, links);
}
/* Output generated #defines. */
while (SLIST_FIRST(®isters) != NULL) {
symbol_node_t *curnode;
u_int value;
char *tab_str;
char *tab_str2;
curnode = SLIST_FIRST(®isters);
SLIST_REMOVE_HEAD(®isters, links);
switch(curnode->symbol->type) {
case REGISTER:
case SCBLOC:
case SRAMLOC:
fprintf(ofile, "\n");
value = curnode->symbol->info.rinfo->address;
tab_str = "\t";
tab_str2 = "\t\t";
break;
case ALIAS:
{
symbol_t *parent;
parent = curnode->symbol->info.ainfo->parent;
value = parent->info.rinfo->address;
tab_str = "\t";
tab_str2 = "\t\t";
break;
}
case MASK:
case FIELD:
case ENUM:
case ENUM_ENTRY:
value = curnode->symbol->info.finfo->value;
tab_str = "\t\t";
tab_str2 = "\t";
break;
default:
value = 0; /* Quiet compiler */
tab_str = NULL;
tab_str2 = NULL;
stop("symtable_dump: Invalid symbol type "
"encountered", EX_SOFTWARE);
break;
}
fprintf(ofile, "#define%s%-16s%s0x%02x\n",
tab_str, curnode->symbol->name, tab_str2,
value);
free(curnode);
}
fprintf(ofile, "\n\n");
while (SLIST_FIRST(&constants) != NULL) {
symbol_node_t *curnode;
curnode = SLIST_FIRST(&constants);
SLIST_REMOVE_HEAD(&constants, links);
fprintf(ofile, "#define\t%-8s\t0x%02x\n",
curnode->symbol->name,
curnode->symbol->info.cinfo->value);
free(curnode);
}
fprintf(ofile, "\n\n/* Downloaded Constant Definitions */\n");
for (i = 0; SLIST_FIRST(&download_constants) != NULL; i++) {
symbol_node_t *curnode;
curnode = SLIST_FIRST(&download_constants);
SLIST_REMOVE_HEAD(&download_constants, links);
fprintf(ofile, "#define\t%-8s\t0x%02x\n",
curnode->symbol->name,
curnode->symbol->info.cinfo->value);
free(curnode);
}
fprintf(ofile, "#define\tDOWNLOAD_CONST_COUNT\t0x%02x\n", i);
fprintf(ofile, "\n\n/* Exported Labels */\n");
while (SLIST_FIRST(&exported_labels) != NULL) {
symbol_node_t *curnode;
curnode = SLIST_FIRST(&exported_labels);
SLIST_REMOVE_HEAD(&exported_labels, links);
fprintf(ofile, "#define\tLABEL_%-8s\t0x%02x\n",
curnode->symbol->name,
curnode->symbol->info.linfo->address);
free(curnode);
}
}
|
linux-master
|
drivers/scsi/aic7xxx/aicasm/aicasm_symbol.c
|
/*
* Aic7xxx SCSI host adapter firmware assembler
*
* Copyright (c) 1997, 1998, 2000, 2001 Justin T. Gibbs.
* Copyright (c) 2001, 2002 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm.c#23 $
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/mman.h>
#include <ctype.h>
#include <inttypes.h>
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#if linux
#include <endian.h>
#else
#include <machine/endian.h>
#endif
#include "aicasm.h"
#include "aicasm_symbol.h"
#include "aicasm_insformat.h"
typedef struct patch {
STAILQ_ENTRY(patch) links;
int patch_func;
u_int begin;
u_int skip_instr;
u_int skip_patch;
} patch_t;
STAILQ_HEAD(patch_list, patch) patches;
static void usage(void);
static void back_patch(void);
static void output_code(void);
static void output_listing(char *ifilename);
static void dump_scope(scope_t *scope);
static void emit_patch(scope_t *scope, int patch);
static int check_patch(patch_t **start_patch, int start_instr,
int *skip_addr, int *func_vals);
struct path_list search_path;
int includes_search_curdir;
char *appname;
char *stock_include_file;
FILE *ofile;
char *ofilename;
char *regfilename;
FILE *regfile;
char *listfilename;
FILE *listfile;
char *regdiagfilename;
FILE *regdiagfile;
int src_mode;
int dst_mode;
static STAILQ_HEAD(,instruction) seq_program;
struct cs_tailq cs_tailq;
struct scope_list scope_stack;
symlist_t patch_functions;
#if DEBUG
extern int yy_flex_debug;
extern int mm_flex_debug;
extern int yydebug;
extern int mmdebug;
#endif
extern FILE *yyin;
extern int yyparse(void);
int main(int argc, char *argv[]);
int
main(int argc, char *argv[])
{
extern char *optarg;
extern int optind;
int ch;
int retval;
char *inputfilename;
scope_t *sentinal;
STAILQ_INIT(&patches);
SLIST_INIT(&search_path);
STAILQ_INIT(&seq_program);
TAILQ_INIT(&cs_tailq);
SLIST_INIT(&scope_stack);
/* Set Sentinal scope node */
sentinal = scope_alloc();
sentinal->type = SCOPE_ROOT;
includes_search_curdir = 1;
appname = *argv;
regfile = NULL;
listfile = NULL;
#if DEBUG
yy_flex_debug = 0;
mm_flex_debug = 0;
yydebug = 0;
mmdebug = 0;
#endif
while ((ch = getopt(argc, argv, "d:i:l:n:o:p:r:I:")) != -1) {
switch(ch) {
case 'd':
#if DEBUG
if (strcmp(optarg, "s") == 0) {
yy_flex_debug = 1;
mm_flex_debug = 1;
} else if (strcmp(optarg, "p") == 0) {
yydebug = 1;
mmdebug = 1;
} else {
fprintf(stderr, "%s: -d Requires either an "
"'s' or 'p' argument\n", appname);
usage();
}
#else
stop("-d: Assembler not built with debugging "
"information", EX_SOFTWARE);
#endif
break;
case 'i':
stock_include_file = optarg;
break;
case 'l':
/* Create a program listing */
if ((listfile = fopen(optarg, "w")) == NULL) {
perror(optarg);
stop(NULL, EX_CANTCREAT);
}
listfilename = optarg;
break;
case 'n':
/* Don't complain about the -nostdinc directrive */
if (strcmp(optarg, "ostdinc")) {
fprintf(stderr, "%s: Unknown option -%c%s\n",
appname, ch, optarg);
usage();
/* NOTREACHED */
}
break;
case 'o':
if ((ofile = fopen(optarg, "w")) == NULL) {
perror(optarg);
stop(NULL, EX_CANTCREAT);
}
ofilename = optarg;
break;
case 'p':
/* Create Register Diagnostic "printing" Functions */
if ((regdiagfile = fopen(optarg, "w")) == NULL) {
perror(optarg);
stop(NULL, EX_CANTCREAT);
}
regdiagfilename = optarg;
break;
case 'r':
if ((regfile = fopen(optarg, "w")) == NULL) {
perror(optarg);
stop(NULL, EX_CANTCREAT);
}
regfilename = optarg;
break;
case 'I':
{
path_entry_t include_dir;
if (strcmp(optarg, "-") == 0) {
if (includes_search_curdir == 0) {
fprintf(stderr, "%s: Warning - '-I-' "
"specified multiple "
"times\n", appname);
}
includes_search_curdir = 0;
for (include_dir = SLIST_FIRST(&search_path);
include_dir != NULL;
include_dir = SLIST_NEXT(include_dir,
links))
/*
* All entries before a '-I-' only
* apply to includes specified with
* quotes instead of "<>".
*/
include_dir->quoted_includes_only = 1;
} else {
include_dir =
(path_entry_t)malloc(sizeof(*include_dir));
if (include_dir == NULL) {
perror(optarg);
stop(NULL, EX_OSERR);
}
include_dir->directory = strdup(optarg);
if (include_dir->directory == NULL) {
perror(optarg);
stop(NULL, EX_OSERR);
}
include_dir->quoted_includes_only = 0;
SLIST_INSERT_HEAD(&search_path, include_dir,
links);
}
break;
}
case '?':
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc != 1) {
fprintf(stderr, "%s: No input file specified\n", appname);
usage();
/* NOTREACHED */
}
if (regdiagfile != NULL
&& (regfile == NULL || stock_include_file == NULL)) {
fprintf(stderr,
"%s: The -p option requires the -r and -i options.\n",
appname);
usage();
/* NOTREACHED */
}
symtable_open();
inputfilename = *argv;
include_file(*argv, SOURCE_FILE);
retval = yyparse();
if (retval == 0) {
if (SLIST_FIRST(&scope_stack) == NULL
|| SLIST_FIRST(&scope_stack)->type != SCOPE_ROOT) {
stop("Unterminated conditional expression", EX_DATAERR);
/* NOTREACHED */
}
/* Process outmost scope */
process_scope(SLIST_FIRST(&scope_stack));
/*
* Decend the tree of scopes and insert/emit
* patches as appropriate. We perform a depth first
* traversal, recursively handling each scope.
*/
/* start at the root scope */
dump_scope(SLIST_FIRST(&scope_stack));
/* Patch up forward jump addresses */
back_patch();
if (ofile != NULL)
output_code();
if (regfile != NULL)
symtable_dump(regfile, regdiagfile);
if (listfile != NULL)
output_listing(inputfilename);
}
stop(NULL, 0);
/* NOTREACHED */
return (0);
}
static void
usage()
{
(void)fprintf(stderr,
"usage: %-16s [-nostdinc] [-I-] [-I directory] [-o output_file]\n"
" [-r register_output_file [-p register_diag_file -i includefile]]\n"
" [-l program_list_file]\n"
" input_file\n", appname);
exit(EX_USAGE);
}
static void
back_patch()
{
struct instruction *cur_instr;
for (cur_instr = STAILQ_FIRST(&seq_program);
cur_instr != NULL;
cur_instr = STAILQ_NEXT(cur_instr, links)) {
if (cur_instr->patch_label != NULL) {
struct ins_format3 *f3_instr;
u_int address;
if (cur_instr->patch_label->type != LABEL) {
char buf[255];
snprintf(buf, sizeof(buf),
"Undefined label %s",
cur_instr->patch_label->name);
stop(buf, EX_DATAERR);
/* NOTREACHED */
}
f3_instr = &cur_instr->format.format3;
address = f3_instr->address;
address += cur_instr->patch_label->info.linfo->address;
f3_instr->address = address;
}
}
}
static void
output_code()
{
struct instruction *cur_instr;
patch_t *cur_patch;
critical_section_t *cs;
symbol_node_t *cur_node;
int instrcount;
instrcount = 0;
fprintf(ofile,
"/*\n"
" * DO NOT EDIT - This file is automatically generated\n"
" * from the following source files:\n"
" *\n"
"%s */\n", versions);
fprintf(ofile, "static const uint8_t seqprog[] = {\n");
for (cur_instr = STAILQ_FIRST(&seq_program);
cur_instr != NULL;
cur_instr = STAILQ_NEXT(cur_instr, links)) {
fprintf(ofile, "%s\t0x%02x, 0x%02x, 0x%02x, 0x%02x",
cur_instr == STAILQ_FIRST(&seq_program) ? "" : ",\n",
#ifdef __LITTLE_ENDIAN
cur_instr->format.bytes[0],
cur_instr->format.bytes[1],
cur_instr->format.bytes[2],
cur_instr->format.bytes[3]);
#else
cur_instr->format.bytes[3],
cur_instr->format.bytes[2],
cur_instr->format.bytes[1],
cur_instr->format.bytes[0]);
#endif
instrcount++;
}
fprintf(ofile, "\n};\n\n");
if (patch_arg_list == NULL)
stop("Patch argument list not defined",
EX_DATAERR);
/*
* Output patch information. Patch functions first.
*/
fprintf(ofile,
"typedef int %spatch_func_t (%s);\n", prefix, patch_arg_list);
for (cur_node = SLIST_FIRST(&patch_functions);
cur_node != NULL;
cur_node = SLIST_NEXT(cur_node,links)) {
fprintf(ofile,
"static %spatch_func_t %spatch%d_func;\n"
"\n"
"static int\n"
"%spatch%d_func(%s)\n"
"{\n"
" return (%s);\n"
"}\n\n",
prefix,
prefix,
cur_node->symbol->info.condinfo->func_num,
prefix,
cur_node->symbol->info.condinfo->func_num,
patch_arg_list,
cur_node->symbol->name);
}
fprintf(ofile,
"static const struct patch {\n"
" %spatch_func_t *patch_func;\n"
" uint32_t begin :10,\n"
" skip_instr :10,\n"
" skip_patch :12;\n"
"} patches[] = {\n", prefix);
for (cur_patch = STAILQ_FIRST(&patches);
cur_patch != NULL;
cur_patch = STAILQ_NEXT(cur_patch,links)) {
fprintf(ofile, "%s\t{ %spatch%d_func, %d, %d, %d }",
cur_patch == STAILQ_FIRST(&patches) ? "" : ",\n",
prefix,
cur_patch->patch_func, cur_patch->begin,
cur_patch->skip_instr, cur_patch->skip_patch);
}
fprintf(ofile, "\n};\n\n");
fprintf(ofile,
"static const struct cs {\n"
" uint16_t begin;\n"
" uint16_t end;\n"
"} critical_sections[] = {\n");
for (cs = TAILQ_FIRST(&cs_tailq);
cs != NULL;
cs = TAILQ_NEXT(cs, links)) {
fprintf(ofile, "%s\t{ %d, %d }",
cs == TAILQ_FIRST(&cs_tailq) ? "" : ",\n",
cs->begin_addr, cs->end_addr);
}
fprintf(ofile, "\n};\n\n");
fprintf(ofile,
"#define NUM_CRITICAL_SECTIONS ARRAY_SIZE(critical_sections)\n");
fprintf(stderr, "%s: %d instructions used\n", appname, instrcount);
}
static void
dump_scope(scope_t *scope)
{
scope_t *cur_scope;
/*
* Emit the first patch for this scope
*/
emit_patch(scope, 0);
/*
* Dump each scope within this one.
*/
cur_scope = TAILQ_FIRST(&scope->inner_scope);
while (cur_scope != NULL) {
dump_scope(cur_scope);
cur_scope = TAILQ_NEXT(cur_scope, scope_links);
}
/*
* Emit the second, closing, patch for this scope
*/
emit_patch(scope, 1);
}
void
emit_patch(scope_t *scope, int patch)
{
patch_info_t *pinfo;
patch_t *new_patch;
pinfo = &scope->patches[patch];
if (pinfo->skip_instr == 0)
/* No-Op patch */
return;
new_patch = (patch_t *)malloc(sizeof(*new_patch));
if (new_patch == NULL)
stop("Could not malloc patch structure", EX_OSERR);
memset(new_patch, 0, sizeof(*new_patch));
if (patch == 0) {
new_patch->patch_func = scope->func_num;
new_patch->begin = scope->begin_addr;
} else {
new_patch->patch_func = 0;
new_patch->begin = scope->end_addr;
}
new_patch->skip_instr = pinfo->skip_instr;
new_patch->skip_patch = pinfo->skip_patch;
STAILQ_INSERT_TAIL(&patches, new_patch, links);
}
void
output_listing(char *ifilename)
{
char buf[1024];
FILE *ifile;
struct instruction *cur_instr;
patch_t *cur_patch;
symbol_node_t *cur_func;
int *func_values;
int instrcount;
int instrptr;
int line;
int func_count;
int skip_addr;
instrcount = 0;
instrptr = 0;
line = 1;
skip_addr = 0;
if ((ifile = fopen(ifilename, "r")) == NULL) {
perror(ifilename);
stop(NULL, EX_DATAERR);
}
/*
* Determine which options to apply to this listing.
*/
for (func_count = 0, cur_func = SLIST_FIRST(&patch_functions);
cur_func != NULL;
cur_func = SLIST_NEXT(cur_func, links))
func_count++;
func_values = NULL;
if (func_count != 0) {
func_values = (int *)malloc(func_count * sizeof(int));
if (func_values == NULL)
stop("Could not malloc", EX_OSERR);
func_values[0] = 0; /* FALSE func */
func_count--;
/*
* Ask the user to fill in the return values for
* the rest of the functions.
*/
for (cur_func = SLIST_FIRST(&patch_functions);
cur_func != NULL && SLIST_NEXT(cur_func, links) != NULL;
cur_func = SLIST_NEXT(cur_func, links), func_count--) {
int input;
fprintf(stdout, "\n(%s)\n", cur_func->symbol->name);
fprintf(stdout,
"Enter the return value for "
"this expression[T/F]:");
while (1) {
input = getchar();
input = toupper(input);
if (input == 'T') {
func_values[func_count] = 1;
break;
} else if (input == 'F') {
func_values[func_count] = 0;
break;
}
}
if (isatty(fileno(stdin)) == 0)
putchar(input);
}
fprintf(stdout, "\nThanks!\n");
}
/* Now output the listing */
cur_patch = STAILQ_FIRST(&patches);
for (cur_instr = STAILQ_FIRST(&seq_program);
cur_instr != NULL;
cur_instr = STAILQ_NEXT(cur_instr, links), instrcount++) {
if (check_patch(&cur_patch, instrcount,
&skip_addr, func_values) == 0) {
/* Don't count this instruction as it is in a patch
* that was removed.
*/
continue;
}
while (line < cur_instr->srcline) {
fgets(buf, sizeof(buf), ifile);
fprintf(listfile, " \t%s", buf);
line++;
}
fprintf(listfile, "%04x %02x%02x%02x%02x", instrptr,
#ifdef __LITTLE_ENDIAN
cur_instr->format.bytes[0],
cur_instr->format.bytes[1],
cur_instr->format.bytes[2],
cur_instr->format.bytes[3]);
#else
cur_instr->format.bytes[3],
cur_instr->format.bytes[2],
cur_instr->format.bytes[1],
cur_instr->format.bytes[0]);
#endif
/*
* Macro expansions can cause several instructions
* to be output for a single source line. Only
* advance the line once in these cases.
*/
if (line == cur_instr->srcline) {
fgets(buf, sizeof(buf), ifile);
fprintf(listfile, "\t%s", buf);
line++;
} else {
fprintf(listfile, "\n");
}
instrptr++;
}
/* Dump the remainder of the file */
while(fgets(buf, sizeof(buf), ifile) != NULL)
fprintf(listfile, " %s", buf);
fclose(ifile);
}
static int
check_patch(patch_t **start_patch, int start_instr,
int *skip_addr, int *func_vals)
{
patch_t *cur_patch;
cur_patch = *start_patch;
while (cur_patch != NULL && start_instr == cur_patch->begin) {
if (func_vals[cur_patch->patch_func] == 0) {
int skip;
/* Start rejecting code */
*skip_addr = start_instr + cur_patch->skip_instr;
for (skip = cur_patch->skip_patch;
skip > 0 && cur_patch != NULL;
skip--)
cur_patch = STAILQ_NEXT(cur_patch, links);
} else {
/* Accepted this patch. Advance to the next
* one and wait for our intruction pointer to
* hit this point.
*/
cur_patch = STAILQ_NEXT(cur_patch, links);
}
}
*start_patch = cur_patch;
if (start_instr < *skip_addr)
/* Still skipping */
return (0);
return (1);
}
/*
* Print out error information if appropriate, and clean up before
* terminating the program.
*/
void
stop(const char *string, int err_code)
{
if (string != NULL) {
fprintf(stderr, "%s: ", appname);
if (yyfilename != NULL) {
fprintf(stderr, "Stopped at file %s, line %d - ",
yyfilename, yylineno);
}
fprintf(stderr, "%s\n", string);
}
if (ofile != NULL) {
fclose(ofile);
if (err_code != 0) {
fprintf(stderr, "%s: Removing %s due to error\n",
appname, ofilename);
unlink(ofilename);
}
}
if (regfile != NULL) {
fclose(regfile);
if (err_code != 0) {
fprintf(stderr, "%s: Removing %s due to error\n",
appname, regfilename);
unlink(regfilename);
}
}
if (listfile != NULL) {
fclose(listfile);
if (err_code != 0) {
fprintf(stderr, "%s: Removing %s due to error\n",
appname, listfilename);
unlink(listfilename);
}
}
symlist_free(&patch_functions);
symtable_close();
exit(err_code);
}
struct instruction *
seq_alloc()
{
struct instruction *new_instr;
new_instr = (struct instruction *)malloc(sizeof(struct instruction));
if (new_instr == NULL)
stop("Unable to malloc instruction object", EX_SOFTWARE);
memset(new_instr, 0, sizeof(*new_instr));
STAILQ_INSERT_TAIL(&seq_program, new_instr, links);
new_instr->srcline = yylineno;
return new_instr;
}
critical_section_t *
cs_alloc()
{
critical_section_t *new_cs;
new_cs= (critical_section_t *)malloc(sizeof(critical_section_t));
if (new_cs == NULL)
stop("Unable to malloc critical_section object", EX_SOFTWARE);
memset(new_cs, 0, sizeof(*new_cs));
TAILQ_INSERT_TAIL(&cs_tailq, new_cs, links);
return new_cs;
}
scope_t *
scope_alloc()
{
scope_t *new_scope;
new_scope = (scope_t *)malloc(sizeof(scope_t));
if (new_scope == NULL)
stop("Unable to malloc scope object", EX_SOFTWARE);
memset(new_scope, 0, sizeof(*new_scope));
TAILQ_INIT(&new_scope->inner_scope);
if (SLIST_FIRST(&scope_stack) != NULL) {
TAILQ_INSERT_TAIL(&SLIST_FIRST(&scope_stack)->inner_scope,
new_scope, scope_links);
}
/* This patch is now the current scope */
SLIST_INSERT_HEAD(&scope_stack, new_scope, scope_stack_links);
return new_scope;
}
void
process_scope(scope_t *scope)
{
/*
* We are "leaving" this scope. We should now have
* enough information to process the lists of scopes
* we encapsulate.
*/
scope_t *cur_scope;
u_int skip_patch_count;
u_int skip_instr_count;
cur_scope = TAILQ_LAST(&scope->inner_scope, scope_tailq);
skip_patch_count = 0;
skip_instr_count = 0;
while (cur_scope != NULL) {
u_int patch0_patch_skip;
patch0_patch_skip = 0;
switch (cur_scope->type) {
case SCOPE_IF:
case SCOPE_ELSE_IF:
if (skip_instr_count != 0) {
/* Create a tail patch */
patch0_patch_skip++;
cur_scope->patches[1].skip_patch =
skip_patch_count + 1;
cur_scope->patches[1].skip_instr =
skip_instr_count;
}
/* Count Head patch */
patch0_patch_skip++;
/* Count any patches contained in our inner scope */
patch0_patch_skip += cur_scope->inner_scope_patches;
cur_scope->patches[0].skip_patch = patch0_patch_skip;
cur_scope->patches[0].skip_instr =
cur_scope->end_addr - cur_scope->begin_addr;
skip_instr_count += cur_scope->patches[0].skip_instr;
skip_patch_count += patch0_patch_skip;
if (cur_scope->type == SCOPE_IF) {
scope->inner_scope_patches += skip_patch_count;
skip_patch_count = 0;
skip_instr_count = 0;
}
break;
case SCOPE_ELSE:
/* Count any patches contained in our innter scope */
skip_patch_count += cur_scope->inner_scope_patches;
skip_instr_count += cur_scope->end_addr
- cur_scope->begin_addr;
break;
case SCOPE_ROOT:
stop("Unexpected scope type encountered", EX_SOFTWARE);
/* NOTREACHED */
}
cur_scope = TAILQ_PREV(cur_scope, scope_tailq, scope_links);
}
}
|
linux-master
|
drivers/scsi/aic7xxx/aicasm/aicasm.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* rx.c
*
* Abstract: Hardware miniport for Drawbridge specific hardware functions.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/completion.h>
#include <linux/time.h>
#include <linux/interrupt.h>
#include <scsi/scsi_host.h>
#include "aacraid.h"
static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
{
struct aac_dev *dev = dev_id;
unsigned long bellbits;
u8 intstat = rx_readb(dev, MUnit.OISR);
/*
* Read mask and invert because drawbridge is reversed.
* This allows us to only service interrupts that have
* been enabled.
* Check to see if this is our interrupt. If it isn't just return
*/
if (likely(intstat & ~(dev->OIMR))) {
bellbits = rx_readl(dev, OutboundDoorbellReg);
if (unlikely(bellbits & DoorBellPrintfReady)) {
aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));
rx_writel(dev, MUnit.ODR,DoorBellPrintfReady);
rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone);
}
else if (unlikely(bellbits & DoorBellAdapterNormCmdReady)) {
rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady);
aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
}
else if (likely(bellbits & DoorBellAdapterNormRespReady)) {
rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
}
else if (unlikely(bellbits & DoorBellAdapterNormCmdNotFull)) {
rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
}
else if (unlikely(bellbits & DoorBellAdapterNormRespNotFull)) {
rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
}
return IRQ_HANDLED;
}
return IRQ_NONE;
}
static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
{
int isAif, isFastResponse, isSpecial;
struct aac_dev *dev = dev_id;
u32 Index = rx_readl(dev, MUnit.OutboundQueue);
if (unlikely(Index == 0xFFFFFFFFL))
Index = rx_readl(dev, MUnit.OutboundQueue);
if (likely(Index != 0xFFFFFFFFL)) {
do {
isAif = isFastResponse = isSpecial = 0;
if (Index & 0x00000002L) {
isAif = 1;
if (Index == 0xFFFFFFFEL)
isSpecial = 1;
Index &= ~0x00000002L;
} else {
if (Index & 0x00000001L)
isFastResponse = 1;
Index >>= 2;
}
if (!isSpecial) {
if (unlikely(aac_intr_normal(dev,
Index, isAif,
isFastResponse, NULL))) {
rx_writel(dev,
MUnit.OutboundQueue,
Index);
rx_writel(dev,
MUnit.ODR,
DoorBellAdapterNormRespReady);
}
}
Index = rx_readl(dev, MUnit.OutboundQueue);
} while (Index != 0xFFFFFFFFL);
return IRQ_HANDLED;
}
return IRQ_NONE;
}
/**
* aac_rx_disable_interrupt - Disable interrupts
* @dev: Adapter
*/
static void aac_rx_disable_interrupt(struct aac_dev *dev)
{
rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
}
/**
* aac_rx_enable_interrupt_producer - Enable interrupts
* @dev: Adapter
*/
static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
{
rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
}
/**
* aac_rx_enable_interrupt_message - Enable interrupts
* @dev: Adapter
*/
static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
{
rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
}
/**
* rx_sync_cmd - send a command and wait
* @dev: Adapter
* @command: Command to execute
* @p1: first parameter
* @p2: second parameter
* @p3: third parameter
* @p4: forth parameter
* @p5: fifth parameter
* @p6: sixth parameter
* @status: adapter status
* @r1: first return value
* @r2: second return value
* @r3: third return value
* @r4: forth return value
*
* This routine will send a synchronous command to the adapter and wait
* for its completion.
*/
static int rx_sync_cmd(struct aac_dev *dev, u32 command,
u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
{
unsigned long start;
int ok;
/*
* Write the command into Mailbox 0
*/
writel(command, &dev->IndexRegs->Mailbox[0]);
/*
* Write the parameters into Mailboxes 1 - 6
*/
writel(p1, &dev->IndexRegs->Mailbox[1]);
writel(p2, &dev->IndexRegs->Mailbox[2]);
writel(p3, &dev->IndexRegs->Mailbox[3]);
writel(p4, &dev->IndexRegs->Mailbox[4]);
/*
* Clear the synch command doorbell to start on a clean slate.
*/
rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
/*
* Disable doorbell interrupts
*/
rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
/*
* Force the completion of the mask register write before issuing
* the interrupt.
*/
rx_readb (dev, MUnit.OIMR);
/*
* Signal that there is a new synch command
*/
rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
ok = 0;
start = jiffies;
/*
* Wait up to 30 seconds
*/
while (time_before(jiffies, start+30*HZ))
{
udelay(5); /* Delay 5 microseconds to let Mon960 get info. */
/*
* Mon960 will set doorbell0 bit when it has completed the command.
*/
if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
/*
* Clear the doorbell.
*/
rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
ok = 1;
break;
}
/*
* Yield the processor in case we are slow
*/
msleep(1);
}
if (unlikely(ok != 1)) {
/*
* Restore interrupt mask even though we timed out
*/
aac_adapter_enable_int(dev);
return -ETIMEDOUT;
}
/*
* Pull the synch status from Mailbox 0.
*/
if (status)
*status = readl(&dev->IndexRegs->Mailbox[0]);
if (r1)
*r1 = readl(&dev->IndexRegs->Mailbox[1]);
if (r2)
*r2 = readl(&dev->IndexRegs->Mailbox[2]);
if (r3)
*r3 = readl(&dev->IndexRegs->Mailbox[3]);
if (r4)
*r4 = readl(&dev->IndexRegs->Mailbox[4]);
/*
* Clear the synch command doorbell.
*/
rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
/*
* Restore interrupt mask
*/
aac_adapter_enable_int(dev);
return 0;
}
/**
* aac_rx_interrupt_adapter - interrupt adapter
* @dev: Adapter
*
* Send an interrupt to the i960 and breakpoint it.
*/
static void aac_rx_interrupt_adapter(struct aac_dev *dev)
{
rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
}
/**
* aac_rx_notify_adapter - send an event to the adapter
* @dev: Adapter
* @event: Event to send
*
* Notify the i960 that something it probably cares about has
* happened.
*/
static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
{
switch (event) {
case AdapNormCmdQue:
rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
break;
case HostNormRespNotFull:
rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
break;
case AdapNormRespQue:
rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
break;
case HostNormCmdNotFull:
rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
break;
case HostShutdown:
break;
case FastIo:
rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
break;
case AdapPrintfDone:
rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
break;
default:
BUG();
break;
}
}
/**
* aac_rx_start_adapter - activate adapter
* @dev: Adapter
*
* Start up processing on an i960 based AAC adapter
*/
static void aac_rx_start_adapter(struct aac_dev *dev)
{
union aac_init *init;
init = dev->init;
init->r7.host_elapsed_seconds = cpu_to_le32(ktime_get_real_seconds());
// We can only use a 32 bit address here
rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
}
/**
* aac_rx_check_health
* @dev: device to check if healthy
*
* Will attempt to determine if the specified adapter is alive and
* capable of handling requests, returning 0 if alive.
*/
static int aac_rx_check_health(struct aac_dev *dev)
{
u32 status = rx_readl(dev, MUnit.OMRx[0]);
/*
* Check to see if the board failed any self tests.
*/
if (unlikely(status & SELF_TEST_FAILED))
return -1;
/*
* Check to see if the board panic'd.
*/
if (unlikely(status & KERNEL_PANIC)) {
char * buffer;
struct POSTSTATUS {
__le32 Post_Command;
__le32 Post_Address;
} * post;
dma_addr_t paddr, baddr;
int ret;
if (likely((status & 0xFF000000L) == 0xBC000000L))
return (status >> 16) & 0xFF;
buffer = dma_alloc_coherent(&dev->pdev->dev, 512, &baddr,
GFP_KERNEL);
ret = -2;
if (unlikely(buffer == NULL))
return ret;
post = dma_alloc_coherent(&dev->pdev->dev,
sizeof(struct POSTSTATUS), &paddr,
GFP_KERNEL);
if (unlikely(post == NULL)) {
dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);
return ret;
}
memset(buffer, 0, 512);
post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
post->Post_Address = cpu_to_le32(baddr);
rx_writel(dev, MUnit.IMRx[0], paddr);
rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
dma_free_coherent(&dev->pdev->dev, sizeof(struct POSTSTATUS),
post, paddr);
if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
ret = (hex_to_bin(buffer[2]) << 4) +
hex_to_bin(buffer[3]);
}
dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);
return ret;
}
/*
* Wait for the adapter to be up and running.
*/
if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
return -3;
/*
* Everything is OK
*/
return 0;
}
/**
* aac_rx_deliver_producer
* @fib: fib to issue
*
* Will send a fib, returning 0 if successful.
*/
int aac_rx_deliver_producer(struct fib * fib)
{
struct aac_dev *dev = fib->dev;
struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
u32 Index;
unsigned long nointr = 0;
aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
atomic_inc(&q->numpending);
*(q->headers.producer) = cpu_to_le32(Index + 1);
if (!(nointr & aac_config.irq_mod))
aac_adapter_notify(dev, AdapNormCmdQueue);
return 0;
}
/**
* aac_rx_deliver_message
* @fib: fib to issue
*
* Will send a fib, returning 0 if successful.
*/
static int aac_rx_deliver_message(struct fib * fib)
{
struct aac_dev *dev = fib->dev;
struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
u32 Index;
u64 addr;
volatile void __iomem *device;
unsigned long count = 10000000L; /* 50 seconds */
atomic_inc(&q->numpending);
for(;;) {
Index = rx_readl(dev, MUnit.InboundQueue);
if (unlikely(Index == 0xFFFFFFFFL))
Index = rx_readl(dev, MUnit.InboundQueue);
if (likely(Index != 0xFFFFFFFFL))
break;
if (--count == 0) {
atomic_dec(&q->numpending);
return -ETIMEDOUT;
}
udelay(5);
}
device = dev->base + Index;
addr = fib->hw_fib_pa;
writel((u32)(addr & 0xffffffff), device);
device += sizeof(u32);
writel((u32)(addr >> 32), device);
device += sizeof(u32);
writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
rx_writel(dev, MUnit.InboundQueue, Index);
return 0;
}
/**
* aac_rx_ioremap
* @dev: adapter
* @size: mapping resize request
*
*/
static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
{
if (!size) {
iounmap(dev->regs.rx);
return 0;
}
dev->base = dev->regs.rx = ioremap(dev->base_start, size);
if (dev->base == NULL)
return -1;
dev->IndexRegs = &dev->regs.rx->IndexRegs;
return 0;
}
static int aac_rx_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
{
u32 var = 0;
if (!(dev->supplement_adapter_info.supported_options2 &
AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
if (bled)
printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
dev->name, dev->id, bled);
else {
bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
if (!bled && (var != 0x00000001) && (var != 0x3803000F))
bled = -EINVAL;
}
if (bled && (bled != -ETIMEDOUT))
bled = aac_adapter_sync_cmd(dev, IOP_RESET,
0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
if (bled && (bled != -ETIMEDOUT))
return -EINVAL;
}
if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
rx_writel(dev, MUnit.reserved2, 3);
msleep(5000); /* Delay 5 seconds */
var = 0x00000001;
}
if (bled && (var != 0x00000001))
return -EINVAL;
ssleep(5);
if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
return -ENODEV;
if (startup_timeout < 300)
startup_timeout = 300;
return 0;
}
/**
* aac_rx_select_comm - Select communications method
* @dev: Adapter
* @comm: communications method
*/
int aac_rx_select_comm(struct aac_dev *dev, int comm)
{
switch (comm) {
case AAC_COMM_PRODUCER:
dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
dev->a_ops.adapter_intr = aac_rx_intr_producer;
dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
break;
case AAC_COMM_MESSAGE:
dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
dev->a_ops.adapter_intr = aac_rx_intr_message;
dev->a_ops.adapter_deliver = aac_rx_deliver_message;
break;
default:
return 1;
}
return 0;
}
/**
* _aac_rx_init - initialize an i960 based AAC card
* @dev: device to configure
*
* Allocate and set up resources for the i960 based AAC variants. The
* device_interface in the commregion will be allocated and linked
* to the comm region.
*/
int _aac_rx_init(struct aac_dev *dev)
{
unsigned long start;
unsigned long status;
int restart = 0;
int instance = dev->id;
const char * name = dev->name;
if (aac_adapter_ioremap(dev, dev->base_size)) {
printk(KERN_WARNING "%s: unable to map adapter.\n", name);
goto error_iounmap;
}
/* Failure to reset here is an option ... */
dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
if (((status & 0x0c) != 0x0c) || dev->init_reset) {
dev->init_reset = false;
if (!aac_rx_restart_adapter(dev, 0, IOP_HWSOFT_RESET)) {
/* Make sure the Hardware FIFO is empty */
while ((++restart < 512) &&
(rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
}
}
/*
* Check to see if the board panic'd while booting.
*/
status = rx_readl(dev, MUnit.OMRx[0]);
if (status & KERNEL_PANIC) {
if (aac_rx_restart_adapter(dev,
aac_rx_check_health(dev), IOP_HWSOFT_RESET))
goto error_iounmap;
++restart;
}
/*
* Check to see if the board failed any self tests.
*/
status = rx_readl(dev, MUnit.OMRx[0]);
if (status & SELF_TEST_FAILED) {
printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
goto error_iounmap;
}
/*
* Check to see if the monitor panic'd while booting.
*/
if (status & MONITOR_PANIC) {
printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
goto error_iounmap;
}
start = jiffies;
/*
* Wait for the adapter to be up and running. Wait up to 3 minutes
*/
while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
{
if ((restart &&
(status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
time_after(jiffies, start+HZ*startup_timeout)) {
printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
dev->name, instance, status);
goto error_iounmap;
}
if (!restart &&
((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
time_after(jiffies, start + HZ *
((startup_timeout > 60)
? (startup_timeout - 60)
: (startup_timeout / 2))))) {
if (likely(!aac_rx_restart_adapter(dev,
aac_rx_check_health(dev), IOP_HWSOFT_RESET)))
start = jiffies;
++restart;
}
msleep(1);
}
if (restart && aac_commit)
aac_commit = 1;
/*
* Fill in the common function dispatch table.
*/
dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
dev->a_ops.adapter_notify = aac_rx_notify_adapter;
dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
dev->a_ops.adapter_check_health = aac_rx_check_health;
dev->a_ops.adapter_restart = aac_rx_restart_adapter;
dev->a_ops.adapter_start = aac_rx_start_adapter;
/*
* First clear out all interrupts. Then enable the one's that we
* can handle.
*/
aac_adapter_comm(dev, AAC_COMM_PRODUCER);
aac_adapter_disable_int(dev);
rx_writel(dev, MUnit.ODR, 0xffffffff);
aac_adapter_enable_int(dev);
if (aac_init_adapter(dev) == NULL)
goto error_iounmap;
aac_adapter_comm(dev, dev->comm_interface);
dev->sync_mode = 0; /* sync. mode not supported */
dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
IRQF_SHARED, "aacraid", dev) < 0) {
if (dev->msi)
pci_disable_msi(dev->pdev);
printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
name, instance);
goto error_iounmap;
}
dev->dbg_base = dev->base_start;
dev->dbg_base_mapped = dev->base;
dev->dbg_size = dev->base_size;
aac_adapter_enable_int(dev);
/*
* Tell the adapter that all is configured, and it can
* start accepting requests
*/
aac_rx_start_adapter(dev);
return 0;
error_iounmap:
return -1;
}
int aac_rx_init(struct aac_dev *dev)
{
/*
* Fill in the function dispatch table.
*/
dev->a_ops.adapter_ioremap = aac_rx_ioremap;
dev->a_ops.adapter_comm = aac_rx_select_comm;
return _aac_rx_init(dev);
}
|
linux-master
|
drivers/scsi/aacraid/rx.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* commsup.c
*
* Abstract: Contain all routines that are required for FSA host/adapter
* communication.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/crash_dump.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/interrupt.h>
#include <linux/bcd.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_cmnd.h>
#include "aacraid.h"
/**
* fib_map_alloc - allocate the fib objects
* @dev: Adapter to allocate for
*
* Allocate and map the shared PCI space for the FIB blocks used to
* talk to the Adaptec firmware.
*/
static int fib_map_alloc(struct aac_dev *dev)
{
if (dev->max_fib_size > AAC_MAX_NATIVE_SIZE)
dev->max_cmd_size = AAC_MAX_NATIVE_SIZE;
else
dev->max_cmd_size = dev->max_fib_size;
if (dev->max_fib_size < AAC_MAX_NATIVE_SIZE) {
dev->max_cmd_size = AAC_MAX_NATIVE_SIZE;
} else {
dev->max_cmd_size = dev->max_fib_size;
}
dprintk((KERN_INFO
"allocate hardware fibs dma_alloc_coherent(%p, %d * (%d + %d), %p)\n",
&dev->pdev->dev, dev->max_cmd_size, dev->scsi_host_ptr->can_queue,
AAC_NUM_MGT_FIB, &dev->hw_fib_pa));
dev->hw_fib_va = dma_alloc_coherent(&dev->pdev->dev,
(dev->max_cmd_size + sizeof(struct aac_fib_xporthdr))
* (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) + (ALIGN32 - 1),
&dev->hw_fib_pa, GFP_KERNEL);
if (dev->hw_fib_va == NULL)
return -ENOMEM;
return 0;
}
/**
* aac_fib_map_free - free the fib objects
* @dev: Adapter to free
*
* Free the PCI mappings and the memory allocated for FIB blocks
* on this adapter.
*/
void aac_fib_map_free(struct aac_dev *dev)
{
size_t alloc_size;
size_t fib_size;
int num_fibs;
if(!dev->hw_fib_va || !dev->max_cmd_size)
return;
num_fibs = dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB;
fib_size = dev->max_fib_size + sizeof(struct aac_fib_xporthdr);
alloc_size = fib_size * num_fibs + ALIGN32 - 1;
dma_free_coherent(&dev->pdev->dev, alloc_size, dev->hw_fib_va,
dev->hw_fib_pa);
dev->hw_fib_va = NULL;
dev->hw_fib_pa = 0;
}
void aac_fib_vector_assign(struct aac_dev *dev)
{
u32 i = 0;
u32 vector = 1;
struct fib *fibptr = NULL;
for (i = 0, fibptr = &dev->fibs[i];
i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB);
i++, fibptr++) {
if ((dev->max_msix == 1) ||
(i > ((dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB - 1)
- dev->vector_cap))) {
fibptr->vector_no = 0;
} else {
fibptr->vector_no = vector;
vector++;
if (vector == dev->max_msix)
vector = 1;
}
}
}
/**
* aac_fib_setup - setup the fibs
* @dev: Adapter to set up
*
* Allocate the PCI space for the fibs, map it and then initialise the
* fib area, the unmapped fib data and also the free list
*/
int aac_fib_setup(struct aac_dev * dev)
{
struct fib *fibptr;
struct hw_fib *hw_fib;
dma_addr_t hw_fib_pa;
int i;
u32 max_cmds;
while (((i = fib_map_alloc(dev)) == -ENOMEM)
&& (dev->scsi_host_ptr->can_queue > (64 - AAC_NUM_MGT_FIB))) {
max_cmds = (dev->scsi_host_ptr->can_queue+AAC_NUM_MGT_FIB) >> 1;
dev->scsi_host_ptr->can_queue = max_cmds - AAC_NUM_MGT_FIB;
if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3)
dev->init->r7.max_io_commands = cpu_to_le32(max_cmds);
}
if (i<0)
return -ENOMEM;
memset(dev->hw_fib_va, 0,
(dev->max_cmd_size + sizeof(struct aac_fib_xporthdr)) *
(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB));
/* 32 byte alignment for PMC */
hw_fib_pa = (dev->hw_fib_pa + (ALIGN32 - 1)) & ~(ALIGN32 - 1);
hw_fib = (struct hw_fib *)((unsigned char *)dev->hw_fib_va +
(hw_fib_pa - dev->hw_fib_pa));
/* add Xport header */
hw_fib = (struct hw_fib *)((unsigned char *)hw_fib +
sizeof(struct aac_fib_xporthdr));
hw_fib_pa += sizeof(struct aac_fib_xporthdr);
/*
* Initialise the fibs
*/
for (i = 0, fibptr = &dev->fibs[i];
i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB);
i++, fibptr++)
{
fibptr->flags = 0;
fibptr->size = sizeof(struct fib);
fibptr->dev = dev;
fibptr->hw_fib_va = hw_fib;
fibptr->data = (void *) fibptr->hw_fib_va->data;
fibptr->next = fibptr+1; /* Forward chain the fibs */
init_completion(&fibptr->event_wait);
spin_lock_init(&fibptr->event_lock);
hw_fib->header.XferState = cpu_to_le32(0xffffffff);
hw_fib->header.SenderSize =
cpu_to_le16(dev->max_fib_size); /* ?? max_cmd_size */
fibptr->hw_fib_pa = hw_fib_pa;
fibptr->hw_sgl_pa = hw_fib_pa +
offsetof(struct aac_hba_cmd_req, sge[2]);
/*
* one element is for the ptr to the separate sg list,
* second element for 32 byte alignment
*/
fibptr->hw_error_pa = hw_fib_pa +
offsetof(struct aac_native_hba, resp.resp_bytes[0]);
hw_fib = (struct hw_fib *)((unsigned char *)hw_fib +
dev->max_cmd_size + sizeof(struct aac_fib_xporthdr));
hw_fib_pa = hw_fib_pa +
dev->max_cmd_size + sizeof(struct aac_fib_xporthdr);
}
/*
*Assign vector numbers to fibs
*/
aac_fib_vector_assign(dev);
/*
* Add the fib chain to the free list
*/
dev->fibs[dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB - 1].next = NULL;
/*
* Set 8 fibs aside for management tools
*/
dev->free_fib = &dev->fibs[dev->scsi_host_ptr->can_queue];
return 0;
}
/**
* aac_fib_alloc_tag-allocate a fib using tags
* @dev: Adapter to allocate the fib for
* @scmd: SCSI command
*
* Allocate a fib from the adapter fib pool using tags
* from the blk layer.
*/
struct fib *aac_fib_alloc_tag(struct aac_dev *dev, struct scsi_cmnd *scmd)
{
struct fib *fibptr;
u32 blk_tag;
int i;
blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd));
i = blk_mq_unique_tag_to_tag(blk_tag);
fibptr = &dev->fibs[i];
/*
* Null out fields that depend on being zero at the start of
* each I/O
*/
fibptr->hw_fib_va->header.XferState = 0;
fibptr->type = FSAFS_NTC_FIB_CONTEXT;
fibptr->callback_data = NULL;
fibptr->callback = NULL;
fibptr->flags = 0;
return fibptr;
}
/**
* aac_fib_alloc - allocate a fib
* @dev: Adapter to allocate the fib for
*
* Allocate a fib from the adapter fib pool. If the pool is empty we
* return NULL.
*/
struct fib *aac_fib_alloc(struct aac_dev *dev)
{
struct fib * fibptr;
unsigned long flags;
spin_lock_irqsave(&dev->fib_lock, flags);
fibptr = dev->free_fib;
if(!fibptr){
spin_unlock_irqrestore(&dev->fib_lock, flags);
return fibptr;
}
dev->free_fib = fibptr->next;
spin_unlock_irqrestore(&dev->fib_lock, flags);
/*
* Set the proper node type code and node byte size
*/
fibptr->type = FSAFS_NTC_FIB_CONTEXT;
fibptr->size = sizeof(struct fib);
/*
* Null out fields that depend on being zero at the start of
* each I/O
*/
fibptr->hw_fib_va->header.XferState = 0;
fibptr->flags = 0;
fibptr->callback = NULL;
fibptr->callback_data = NULL;
return fibptr;
}
/**
* aac_fib_free - free a fib
* @fibptr: fib to free up
*
* Frees up a fib and places it on the appropriate queue
*/
void aac_fib_free(struct fib *fibptr)
{
unsigned long flags;
if (fibptr->done == 2)
return;
spin_lock_irqsave(&fibptr->dev->fib_lock, flags);
if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT))
aac_config.fib_timeouts++;
if (!(fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) &&
fibptr->hw_fib_va->header.XferState != 0) {
printk(KERN_WARNING "aac_fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n",
(void*)fibptr,
le32_to_cpu(fibptr->hw_fib_va->header.XferState));
}
fibptr->next = fibptr->dev->free_fib;
fibptr->dev->free_fib = fibptr;
spin_unlock_irqrestore(&fibptr->dev->fib_lock, flags);
}
/**
* aac_fib_init - initialise a fib
* @fibptr: The fib to initialize
*
* Set up the generic fib fields ready for use
*/
void aac_fib_init(struct fib *fibptr)
{
struct hw_fib *hw_fib = fibptr->hw_fib_va;
memset(&hw_fib->header, 0, sizeof(struct aac_fibhdr));
hw_fib->header.StructType = FIB_MAGIC;
hw_fib->header.Size = cpu_to_le16(fibptr->dev->max_fib_size);
hw_fib->header.XferState = cpu_to_le32(HostOwned | FibInitialized | FibEmpty | FastResponseCapable);
hw_fib->header.u.ReceiverFibAddress = cpu_to_le32(fibptr->hw_fib_pa);
hw_fib->header.SenderSize = cpu_to_le16(fibptr->dev->max_fib_size);
}
/**
* fib_dealloc - deallocate a fib
* @fibptr: fib to deallocate
*
* Will deallocate and return to the free pool the FIB pointed to by the
* caller.
*/
static void fib_dealloc(struct fib * fibptr)
{
struct hw_fib *hw_fib = fibptr->hw_fib_va;
hw_fib->header.XferState = 0;
}
/*
* Commuication primitives define and support the queuing method we use to
* support host to adapter commuication. All queue accesses happen through
* these routines and are the only routines which have a knowledge of the
* how these queues are implemented.
*/
/**
* aac_get_entry - get a queue entry
* @dev: Adapter
* @qid: Queue Number
* @entry: Entry return
* @index: Index return
* @nonotify: notification control
*
* With a priority the routine returns a queue entry if the queue has free entries. If the queue
* is full(no free entries) than no entry is returned and the function returns 0 otherwise 1 is
* returned.
*/
static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify)
{
struct aac_queue * q;
unsigned long idx;
/*
* All of the queues wrap when they reach the end, so we check
* to see if they have reached the end and if they have we just
* set the index back to zero. This is a wrap. You could or off
* the high bits in all updates but this is a bit faster I think.
*/
q = &dev->queues->queue[qid];
idx = *index = le32_to_cpu(*(q->headers.producer));
/* Interrupt Moderation, only interrupt for first two entries */
if (idx != le32_to_cpu(*(q->headers.consumer))) {
if (--idx == 0) {
if (qid == AdapNormCmdQueue)
idx = ADAP_NORM_CMD_ENTRIES;
else
idx = ADAP_NORM_RESP_ENTRIES;
}
if (idx != le32_to_cpu(*(q->headers.consumer)))
*nonotify = 1;
}
if (qid == AdapNormCmdQueue) {
if (*index >= ADAP_NORM_CMD_ENTRIES)
*index = 0; /* Wrap to front of the Producer Queue. */
} else {
if (*index >= ADAP_NORM_RESP_ENTRIES)
*index = 0; /* Wrap to front of the Producer Queue. */
}
/* Queue is full */
if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) {
printk(KERN_WARNING "Queue %d full, %u outstanding.\n",
qid, atomic_read(&q->numpending));
return 0;
} else {
*entry = q->base + *index;
return 1;
}
}
/**
* aac_queue_get - get the next free QE
* @dev: Adapter
* @index: Returned index
* @qid: Queue number
* @hw_fib: Fib to associate with the queue entry
* @wait: Wait if queue full
* @fibptr: Driver fib object to go with fib
* @nonotify: Don't notify the adapter
*
* Gets the next free QE off the requested priorty adapter command
* queue and associates the Fib with the QE. The QE represented by
* index is ready to insert on the queue when this routine returns
* success.
*/
int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw_fib, int wait, struct fib * fibptr, unsigned long *nonotify)
{
struct aac_entry * entry = NULL;
int map = 0;
if (qid == AdapNormCmdQueue) {
/* if no entries wait for some if caller wants to */
while (!aac_get_entry(dev, qid, &entry, index, nonotify)) {
printk(KERN_ERR "GetEntries failed\n");
}
/*
* Setup queue entry with a command, status and fib mapped
*/
entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
map = 1;
} else {
while (!aac_get_entry(dev, qid, &entry, index, nonotify)) {
/* if no entries wait for some if caller wants to */
}
/*
* Setup queue entry with command, status and fib mapped
*/
entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
entry->addr = hw_fib->header.SenderFibAddress;
/* Restore adapters pointer to the FIB */
hw_fib->header.u.ReceiverFibAddress = hw_fib->header.SenderFibAddress; /* Let the adapter now where to find its data */
map = 0;
}
/*
* If MapFib is true than we need to map the Fib and put pointers
* in the queue entry.
*/
if (map)
entry->addr = cpu_to_le32(fibptr->hw_fib_pa);
return 0;
}
/*
* Define the highest level of host to adapter communication routines.
* These routines will support host to adapter FS commuication. These
* routines have no knowledge of the commuication method used. This level
* sends and receives FIBs. This level has no knowledge of how these FIBs
* get passed back and forth.
*/
/**
* aac_fib_send - send a fib to the adapter
* @command: Command to send
* @fibptr: The fib
* @size: Size of fib data area
* @priority: Priority of Fib
* @wait: Async/sync select
* @reply: True if a reply is wanted
* @callback: Called with reply
* @callback_data: Passed to callback
*
* Sends the requested FIB to the adapter and optionally will wait for a
* response FIB. If the caller does not wish to wait for a response than
* an event to wait on must be supplied. This event will be set when a
* response FIB is received from the adapter.
*/
int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
int priority, int wait, int reply, fib_callback callback,
void *callback_data)
{
struct aac_dev * dev = fibptr->dev;
struct hw_fib * hw_fib = fibptr->hw_fib_va;
unsigned long flags = 0;
unsigned long mflags = 0;
unsigned long sflags = 0;
if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned)))
return -EBUSY;
if (hw_fib->header.XferState & cpu_to_le32(AdapterProcessed))
return -EINVAL;
/*
* There are 5 cases with the wait and response requested flags.
* The only invalid cases are if the caller requests to wait and
* does not request a response and if the caller does not want a
* response and the Fib is not allocated from pool. If a response
* is not requested the Fib will just be deallocaed by the DPC
* routine when the response comes back from the adapter. No
* further processing will be done besides deleting the Fib. We
* will have a debug mode where the adapter can notify the host
* it had a problem and the host can log that fact.
*/
fibptr->flags = 0;
if (wait && !reply) {
return -EINVAL;
} else if (!wait && reply) {
hw_fib->header.XferState |= cpu_to_le32(Async | ResponseExpected);
FIB_COUNTER_INCREMENT(aac_config.AsyncSent);
} else if (!wait && !reply) {
hw_fib->header.XferState |= cpu_to_le32(NoResponseExpected);
FIB_COUNTER_INCREMENT(aac_config.NoResponseSent);
} else if (wait && reply) {
hw_fib->header.XferState |= cpu_to_le32(ResponseExpected);
FIB_COUNTER_INCREMENT(aac_config.NormalSent);
}
/*
* Map the fib into 32bits by using the fib number
*/
hw_fib->header.SenderFibAddress =
cpu_to_le32(((u32)(fibptr - dev->fibs)) << 2);
/* use the same shifted value for handle to be compatible
* with the new native hba command handle
*/
hw_fib->header.Handle =
cpu_to_le32((((u32)(fibptr - dev->fibs)) << 2) + 1);
/*
* Set FIB state to indicate where it came from and if we want a
* response from the adapter. Also load the command from the
* caller.
*
* Map the hw fib pointer as a 32bit value
*/
hw_fib->header.Command = cpu_to_le16(command);
hw_fib->header.XferState |= cpu_to_le32(SentFromHost);
/*
* Set the size of the Fib we want to send to the adapter
*/
hw_fib->header.Size = cpu_to_le16(sizeof(struct aac_fibhdr) + size);
if (le16_to_cpu(hw_fib->header.Size) > le16_to_cpu(hw_fib->header.SenderSize)) {
return -EMSGSIZE;
}
/*
* Get a queue entry connect the FIB to it and send an notify
* the adapter a command is ready.
*/
hw_fib->header.XferState |= cpu_to_le32(NormalPriority);
/*
* Fill in the Callback and CallbackContext if we are not
* going to wait.
*/
if (!wait) {
fibptr->callback = callback;
fibptr->callback_data = callback_data;
fibptr->flags = FIB_CONTEXT_FLAG;
}
fibptr->done = 0;
FIB_COUNTER_INCREMENT(aac_config.FibsSent);
dprintk((KERN_DEBUG "Fib contents:.\n"));
dprintk((KERN_DEBUG " Command = %d.\n", le32_to_cpu(hw_fib->header.Command)));
dprintk((KERN_DEBUG " SubCommand = %d.\n", le32_to_cpu(((struct aac_query_mount *)fib_data(fibptr))->command)));
dprintk((KERN_DEBUG " XferState = %x.\n", le32_to_cpu(hw_fib->header.XferState)));
dprintk((KERN_DEBUG " hw_fib va being sent=%p\n",fibptr->hw_fib_va));
dprintk((KERN_DEBUG " hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa));
dprintk((KERN_DEBUG " fib being sent=%p\n",fibptr));
if (!dev->queues)
return -EBUSY;
if (wait) {
spin_lock_irqsave(&dev->manage_lock, mflags);
if (dev->management_fib_count >= AAC_NUM_MGT_FIB) {
printk(KERN_INFO "No management Fibs Available:%d\n",
dev->management_fib_count);
spin_unlock_irqrestore(&dev->manage_lock, mflags);
return -EBUSY;
}
dev->management_fib_count++;
spin_unlock_irqrestore(&dev->manage_lock, mflags);
spin_lock_irqsave(&fibptr->event_lock, flags);
}
if (dev->sync_mode) {
if (wait)
spin_unlock_irqrestore(&fibptr->event_lock, flags);
spin_lock_irqsave(&dev->sync_lock, sflags);
if (dev->sync_fib) {
list_add_tail(&fibptr->fiblink, &dev->sync_fib_list);
spin_unlock_irqrestore(&dev->sync_lock, sflags);
} else {
dev->sync_fib = fibptr;
spin_unlock_irqrestore(&dev->sync_lock, sflags);
aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
(u32)fibptr->hw_fib_pa, 0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
}
if (wait) {
fibptr->flags |= FIB_CONTEXT_FLAG_WAIT;
if (wait_for_completion_interruptible(&fibptr->event_wait)) {
fibptr->flags &= ~FIB_CONTEXT_FLAG_WAIT;
return -EFAULT;
}
return 0;
}
return -EINPROGRESS;
}
if (aac_adapter_deliver(fibptr) != 0) {
printk(KERN_ERR "aac_fib_send: returned -EBUSY\n");
if (wait) {
spin_unlock_irqrestore(&fibptr->event_lock, flags);
spin_lock_irqsave(&dev->manage_lock, mflags);
dev->management_fib_count--;
spin_unlock_irqrestore(&dev->manage_lock, mflags);
}
return -EBUSY;
}
/*
* If the caller wanted us to wait for response wait now.
*/
if (wait) {
spin_unlock_irqrestore(&fibptr->event_lock, flags);
/* Only set for first known interruptable command */
if (wait < 0) {
/*
* *VERY* Dangerous to time out a command, the
* assumption is made that we have no hope of
* functioning because an interrupt routing or other
* hardware failure has occurred.
*/
unsigned long timeout = jiffies + (180 * HZ); /* 3 minutes */
while (!try_wait_for_completion(&fibptr->event_wait)) {
int blink;
if (time_is_before_eq_jiffies(timeout)) {
struct aac_queue * q = &dev->queues->queue[AdapNormCmdQueue];
atomic_dec(&q->numpending);
if (wait == -1) {
printk(KERN_ERR "aacraid: aac_fib_send: first asynchronous command timed out.\n"
"Usually a result of a PCI interrupt routing problem;\n"
"update mother board BIOS or consider utilizing one of\n"
"the SAFE mode kernel options (acpi, apic etc)\n");
}
return -ETIMEDOUT;
}
if (unlikely(aac_pci_offline(dev)))
return -EFAULT;
if ((blink = aac_adapter_check_health(dev)) > 0) {
if (wait == -1) {
printk(KERN_ERR "aacraid: aac_fib_send: adapter blinkLED 0x%x.\n"
"Usually a result of a serious unrecoverable hardware problem\n",
blink);
}
return -EFAULT;
}
/*
* Allow other processes / CPUS to use core
*/
schedule();
}
} else if (wait_for_completion_interruptible(&fibptr->event_wait)) {
/* Do nothing ... satisfy
* wait_for_completion_interruptible must_check */
}
spin_lock_irqsave(&fibptr->event_lock, flags);
if (fibptr->done == 0) {
fibptr->done = 2; /* Tell interrupt we aborted */
spin_unlock_irqrestore(&fibptr->event_lock, flags);
return -ERESTARTSYS;
}
spin_unlock_irqrestore(&fibptr->event_lock, flags);
BUG_ON(fibptr->done == 0);
if(unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT))
return -ETIMEDOUT;
return 0;
}
/*
* If the user does not want a response than return success otherwise
* return pending
*/
if (reply)
return -EINPROGRESS;
else
return 0;
}
int aac_hba_send(u8 command, struct fib *fibptr, fib_callback callback,
void *callback_data)
{
struct aac_dev *dev = fibptr->dev;
int wait;
unsigned long flags = 0;
unsigned long mflags = 0;
struct aac_hba_cmd_req *hbacmd = (struct aac_hba_cmd_req *)
fibptr->hw_fib_va;
fibptr->flags = (FIB_CONTEXT_FLAG | FIB_CONTEXT_FLAG_NATIVE_HBA);
if (callback) {
wait = 0;
fibptr->callback = callback;
fibptr->callback_data = callback_data;
} else
wait = 1;
hbacmd->iu_type = command;
if (command == HBA_IU_TYPE_SCSI_CMD_REQ) {
/* bit1 of request_id must be 0 */
hbacmd->request_id =
cpu_to_le32((((u32)(fibptr - dev->fibs)) << 2) + 1);
fibptr->flags |= FIB_CONTEXT_FLAG_SCSI_CMD;
} else
return -EINVAL;
if (wait) {
spin_lock_irqsave(&dev->manage_lock, mflags);
if (dev->management_fib_count >= AAC_NUM_MGT_FIB) {
spin_unlock_irqrestore(&dev->manage_lock, mflags);
return -EBUSY;
}
dev->management_fib_count++;
spin_unlock_irqrestore(&dev->manage_lock, mflags);
spin_lock_irqsave(&fibptr->event_lock, flags);
}
if (aac_adapter_deliver(fibptr) != 0) {
if (wait) {
spin_unlock_irqrestore(&fibptr->event_lock, flags);
spin_lock_irqsave(&dev->manage_lock, mflags);
dev->management_fib_count--;
spin_unlock_irqrestore(&dev->manage_lock, mflags);
}
return -EBUSY;
}
FIB_COUNTER_INCREMENT(aac_config.NativeSent);
if (wait) {
spin_unlock_irqrestore(&fibptr->event_lock, flags);
if (unlikely(aac_pci_offline(dev)))
return -EFAULT;
fibptr->flags |= FIB_CONTEXT_FLAG_WAIT;
if (wait_for_completion_interruptible(&fibptr->event_wait))
fibptr->done = 2;
fibptr->flags &= ~(FIB_CONTEXT_FLAG_WAIT);
spin_lock_irqsave(&fibptr->event_lock, flags);
if ((fibptr->done == 0) || (fibptr->done == 2)) {
fibptr->done = 2; /* Tell interrupt we aborted */
spin_unlock_irqrestore(&fibptr->event_lock, flags);
return -ERESTARTSYS;
}
spin_unlock_irqrestore(&fibptr->event_lock, flags);
WARN_ON(fibptr->done == 0);
if (unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT))
return -ETIMEDOUT;
return 0;
}
return -EINPROGRESS;
}
/**
* aac_consumer_get - get the top of the queue
* @dev: Adapter
* @q: Queue
* @entry: Return entry
*
* Will return a pointer to the entry on the top of the queue requested that
* we are a consumer of, and return the address of the queue entry. It does
* not change the state of the queue.
*/
int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry)
{
u32 index;
int status;
if (le32_to_cpu(*q->headers.producer) == le32_to_cpu(*q->headers.consumer)) {
status = 0;
} else {
/*
* The consumer index must be wrapped if we have reached
* the end of the queue, else we just use the entry
* pointed to by the header index
*/
if (le32_to_cpu(*q->headers.consumer) >= q->entries)
index = 0;
else
index = le32_to_cpu(*q->headers.consumer);
*entry = q->base + index;
status = 1;
}
return(status);
}
/**
* aac_consumer_free - free consumer entry
* @dev: Adapter
* @q: Queue
* @qid: Queue ident
*
* Frees up the current top of the queue we are a consumer of. If the
* queue was full notify the producer that the queue is no longer full.
*/
void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid)
{
int wasfull = 0;
u32 notify;
if ((le32_to_cpu(*q->headers.producer)+1) == le32_to_cpu(*q->headers.consumer))
wasfull = 1;
if (le32_to_cpu(*q->headers.consumer) >= q->entries)
*q->headers.consumer = cpu_to_le32(1);
else
le32_add_cpu(q->headers.consumer, 1);
if (wasfull) {
switch (qid) {
case HostNormCmdQueue:
notify = HostNormCmdNotFull;
break;
case HostNormRespQueue:
notify = HostNormRespNotFull;
break;
default:
BUG();
return;
}
aac_adapter_notify(dev, notify);
}
}
/**
* aac_fib_adapter_complete - complete adapter issued fib
* @fibptr: fib to complete
* @size: size of fib
*
* Will do all necessary work to complete a FIB that was sent from
* the adapter.
*/
int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
{
struct hw_fib * hw_fib = fibptr->hw_fib_va;
struct aac_dev * dev = fibptr->dev;
struct aac_queue * q;
unsigned long nointr = 0;
unsigned long qflags;
if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 ||
dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 ||
dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) {
kfree(hw_fib);
return 0;
}
if (hw_fib->header.XferState == 0) {
if (dev->comm_interface == AAC_COMM_MESSAGE)
kfree(hw_fib);
return 0;
}
/*
* If we plan to do anything check the structure type first.
*/
if (hw_fib->header.StructType != FIB_MAGIC &&
hw_fib->header.StructType != FIB_MAGIC2 &&
hw_fib->header.StructType != FIB_MAGIC2_64) {
if (dev->comm_interface == AAC_COMM_MESSAGE)
kfree(hw_fib);
return -EINVAL;
}
/*
* This block handles the case where the adapter had sent us a
* command and we have finished processing the command. We
* call completeFib when we are done processing the command
* and want to send a response back to the adapter. This will
* send the completed cdb to the adapter.
*/
if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) {
if (dev->comm_interface == AAC_COMM_MESSAGE) {
kfree (hw_fib);
} else {
u32 index;
hw_fib->header.XferState |= cpu_to_le32(HostProcessed);
if (size) {
size += sizeof(struct aac_fibhdr);
if (size > le16_to_cpu(hw_fib->header.SenderSize))
return -EMSGSIZE;
hw_fib->header.Size = cpu_to_le16(size);
}
q = &dev->queues->queue[AdapNormRespQueue];
spin_lock_irqsave(q->lock, qflags);
aac_queue_get(dev, &index, AdapNormRespQueue, hw_fib, 1, NULL, &nointr);
*(q->headers.producer) = cpu_to_le32(index + 1);
spin_unlock_irqrestore(q->lock, qflags);
if (!(nointr & (int)aac_config.irq_mod))
aac_adapter_notify(dev, AdapNormRespQueue);
}
} else {
printk(KERN_WARNING "aac_fib_adapter_complete: "
"Unknown xferstate detected.\n");
BUG();
}
return 0;
}
/**
* aac_fib_complete - fib completion handler
* @fibptr: FIB to complete
*
* Will do all necessary work to complete a FIB.
*/
int aac_fib_complete(struct fib *fibptr)
{
struct hw_fib * hw_fib = fibptr->hw_fib_va;
if (fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) {
fib_dealloc(fibptr);
return 0;
}
/*
* Check for a fib which has already been completed or with a
* status wait timeout
*/
if (hw_fib->header.XferState == 0 || fibptr->done == 2)
return 0;
/*
* If we plan to do anything check the structure type first.
*/
if (hw_fib->header.StructType != FIB_MAGIC &&
hw_fib->header.StructType != FIB_MAGIC2 &&
hw_fib->header.StructType != FIB_MAGIC2_64)
return -EINVAL;
/*
* This block completes a cdb which orginated on the host and we
* just need to deallocate the cdb or reinit it. At this point the
* command is complete that we had sent to the adapter and this
* cdb could be reused.
*/
if((hw_fib->header.XferState & cpu_to_le32(SentFromHost)) &&
(hw_fib->header.XferState & cpu_to_le32(AdapterProcessed)))
{
fib_dealloc(fibptr);
}
else if(hw_fib->header.XferState & cpu_to_le32(SentFromHost))
{
/*
* This handles the case when the host has aborted the I/O
* to the adapter because the adapter is not responding
*/
fib_dealloc(fibptr);
} else if(hw_fib->header.XferState & cpu_to_le32(HostOwned)) {
fib_dealloc(fibptr);
} else {
BUG();
}
return 0;
}
/**
* aac_printf - handle printf from firmware
* @dev: Adapter
* @val: Message info
*
* Print a message passed to us by the controller firmware on the
* Adaptec board
*/
void aac_printf(struct aac_dev *dev, u32 val)
{
char *cp = dev->printfbuf;
if (dev->printf_enabled)
{
int length = val & 0xffff;
int level = (val >> 16) & 0xffff;
/*
* The size of the printfbuf is set in port.c
* There is no variable or define for it
*/
if (length > 255)
length = 255;
if (cp[length] != 0)
cp[length] = 0;
if (level == LOG_AAC_HIGH_ERROR)
printk(KERN_WARNING "%s:%s", dev->name, cp);
else
printk(KERN_INFO "%s:%s", dev->name, cp);
}
memset(cp, 0, 256);
}
static inline int aac_aif_data(struct aac_aifcmd *aifcmd, uint32_t index)
{
return le32_to_cpu(((__le32 *)aifcmd->data)[index]);
}
static void aac_handle_aif_bu(struct aac_dev *dev, struct aac_aifcmd *aifcmd)
{
switch (aac_aif_data(aifcmd, 1)) {
case AifBuCacheDataLoss:
if (aac_aif_data(aifcmd, 2))
dev_info(&dev->pdev->dev, "Backup unit had cache data loss - [%d]\n",
aac_aif_data(aifcmd, 2));
else
dev_info(&dev->pdev->dev, "Backup Unit had cache data loss\n");
break;
case AifBuCacheDataRecover:
if (aac_aif_data(aifcmd, 2))
dev_info(&dev->pdev->dev, "DDR cache data recovered successfully - [%d]\n",
aac_aif_data(aifcmd, 2));
else
dev_info(&dev->pdev->dev, "DDR cache data recovered successfully\n");
break;
}
}
#define AIF_SNIFF_TIMEOUT (500*HZ)
/**
* aac_handle_aif - Handle a message from the firmware
* @dev: Which adapter this fib is from
* @fibptr: Pointer to fibptr from adapter
*
* This routine handles a driver notify fib from the adapter and
* dispatches it to the appropriate routine for handling.
*/
static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
{
struct hw_fib * hw_fib = fibptr->hw_fib_va;
struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data;
u32 channel, id, lun, container;
struct scsi_device *device;
enum {
NOTHING,
DELETE,
ADD,
CHANGE
} device_config_needed = NOTHING;
/* Sniff for container changes */
if (!dev || !dev->fsa_dev)
return;
container = channel = id = lun = (u32)-1;
/*
* We have set this up to try and minimize the number of
* re-configures that take place. As a result of this when
* certain AIF's come in we will set a flag waiting for another
* type of AIF before setting the re-config flag.
*/
switch (le32_to_cpu(aifcmd->command)) {
case AifCmdDriverNotify:
switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) {
case AifRawDeviceRemove:
container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
if ((container >> 28)) {
container = (u32)-1;
break;
}
channel = (container >> 24) & 0xF;
if (channel >= dev->maximum_num_channels) {
container = (u32)-1;
break;
}
id = container & 0xFFFF;
if (id >= dev->maximum_num_physicals) {
container = (u32)-1;
break;
}
lun = (container >> 16) & 0xFF;
container = (u32)-1;
channel = aac_phys_to_logical(channel);
device_config_needed = DELETE;
break;
/*
* Morph or Expand complete
*/
case AifDenMorphComplete:
case AifDenVolumeExtendComplete:
container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
/*
* Find the scsi_device associated with the SCSI
* address. Make sure we have the right array, and if
* so set the flag to initiate a new re-config once we
* see an AifEnConfigChange AIF come through.
*/
if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) {
device = scsi_device_lookup(dev->scsi_host_ptr,
CONTAINER_TO_CHANNEL(container),
CONTAINER_TO_ID(container),
CONTAINER_TO_LUN(container));
if (device) {
dev->fsa_dev[container].config_needed = CHANGE;
dev->fsa_dev[container].config_waiting_on = AifEnConfigChange;
dev->fsa_dev[container].config_waiting_stamp = jiffies;
scsi_device_put(device);
}
}
}
/*
* If we are waiting on something and this happens to be
* that thing then set the re-configure flag.
*/
if (container != (u32)-1) {
if (container >= dev->maximum_num_containers)
break;
if ((dev->fsa_dev[container].config_waiting_on ==
le32_to_cpu(*(__le32 *)aifcmd->data)) &&
time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
dev->fsa_dev[container].config_waiting_on = 0;
} else for (container = 0;
container < dev->maximum_num_containers; ++container) {
if ((dev->fsa_dev[container].config_waiting_on ==
le32_to_cpu(*(__le32 *)aifcmd->data)) &&
time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
dev->fsa_dev[container].config_waiting_on = 0;
}
break;
case AifCmdEventNotify:
switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) {
case AifEnBatteryEvent:
dev->cache_protected =
(((__le32 *)aifcmd->data)[1] == cpu_to_le32(3));
break;
/*
* Add an Array.
*/
case AifEnAddContainer:
container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
dev->fsa_dev[container].config_needed = ADD;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
dev->fsa_dev[container].config_waiting_stamp = jiffies;
break;
/*
* Delete an Array.
*/
case AifEnDeleteContainer:
container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
dev->fsa_dev[container].config_needed = DELETE;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
dev->fsa_dev[container].config_waiting_stamp = jiffies;
break;
/*
* Container change detected. If we currently are not
* waiting on something else, setup to wait on a Config Change.
*/
case AifEnContainerChange:
container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
if (container >= dev->maximum_num_containers)
break;
if (dev->fsa_dev[container].config_waiting_on &&
time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
break;
dev->fsa_dev[container].config_needed = CHANGE;
dev->fsa_dev[container].config_waiting_on =
AifEnConfigChange;
dev->fsa_dev[container].config_waiting_stamp = jiffies;
break;
case AifEnConfigChange:
break;
case AifEnAddJBOD:
case AifEnDeleteJBOD:
container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
if ((container >> 28)) {
container = (u32)-1;
break;
}
channel = (container >> 24) & 0xF;
if (channel >= dev->maximum_num_channels) {
container = (u32)-1;
break;
}
id = container & 0xFFFF;
if (id >= dev->maximum_num_physicals) {
container = (u32)-1;
break;
}
lun = (container >> 16) & 0xFF;
container = (u32)-1;
channel = aac_phys_to_logical(channel);
device_config_needed =
(((__le32 *)aifcmd->data)[0] ==
cpu_to_le32(AifEnAddJBOD)) ? ADD : DELETE;
if (device_config_needed == ADD) {
device = scsi_device_lookup(dev->scsi_host_ptr,
channel,
id,
lun);
if (device) {
scsi_remove_device(device);
scsi_device_put(device);
}
}
break;
case AifEnEnclosureManagement:
/*
* If in JBOD mode, automatic exposure of new
* physical target to be suppressed until configured.
*/
if (dev->jbod)
break;
switch (le32_to_cpu(((__le32 *)aifcmd->data)[3])) {
case EM_DRIVE_INSERTION:
case EM_DRIVE_REMOVAL:
case EM_SES_DRIVE_INSERTION:
case EM_SES_DRIVE_REMOVAL:
container = le32_to_cpu(
((__le32 *)aifcmd->data)[2]);
if ((container >> 28)) {
container = (u32)-1;
break;
}
channel = (container >> 24) & 0xF;
if (channel >= dev->maximum_num_channels) {
container = (u32)-1;
break;
}
id = container & 0xFFFF;
lun = (container >> 16) & 0xFF;
container = (u32)-1;
if (id >= dev->maximum_num_physicals) {
/* legacy dev_t ? */
if ((0x2000 <= id) || lun || channel ||
((channel = (id >> 7) & 0x3F) >=
dev->maximum_num_channels))
break;
lun = (id >> 4) & 7;
id &= 0xF;
}
channel = aac_phys_to_logical(channel);
device_config_needed =
((((__le32 *)aifcmd->data)[3]
== cpu_to_le32(EM_DRIVE_INSERTION)) ||
(((__le32 *)aifcmd->data)[3]
== cpu_to_le32(EM_SES_DRIVE_INSERTION))) ?
ADD : DELETE;
break;
}
break;
case AifBuManagerEvent:
aac_handle_aif_bu(dev, aifcmd);
break;
}
/*
* If we are waiting on something and this happens to be
* that thing then set the re-configure flag.
*/
if (container != (u32)-1) {
if (container >= dev->maximum_num_containers)
break;
if ((dev->fsa_dev[container].config_waiting_on ==
le32_to_cpu(*(__le32 *)aifcmd->data)) &&
time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
dev->fsa_dev[container].config_waiting_on = 0;
} else for (container = 0;
container < dev->maximum_num_containers; ++container) {
if ((dev->fsa_dev[container].config_waiting_on ==
le32_to_cpu(*(__le32 *)aifcmd->data)) &&
time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
dev->fsa_dev[container].config_waiting_on = 0;
}
break;
case AifCmdJobProgress:
/*
* These are job progress AIF's. When a Clear is being
* done on a container it is initially created then hidden from
* the OS. When the clear completes we don't get a config
* change so we monitor the job status complete on a clear then
* wait for a container change.
*/
if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) &&
(((__le32 *)aifcmd->data)[6] == ((__le32 *)aifcmd->data)[5] ||
((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess))) {
for (container = 0;
container < dev->maximum_num_containers;
++container) {
/*
* Stomp on all config sequencing for all
* containers?
*/
dev->fsa_dev[container].config_waiting_on =
AifEnContainerChange;
dev->fsa_dev[container].config_needed = ADD;
dev->fsa_dev[container].config_waiting_stamp =
jiffies;
}
}
if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) &&
((__le32 *)aifcmd->data)[6] == 0 &&
((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning)) {
for (container = 0;
container < dev->maximum_num_containers;
++container) {
/*
* Stomp on all config sequencing for all
* containers?
*/
dev->fsa_dev[container].config_waiting_on =
AifEnContainerChange;
dev->fsa_dev[container].config_needed = DELETE;
dev->fsa_dev[container].config_waiting_stamp =
jiffies;
}
}
break;
}
container = 0;
retry_next:
if (device_config_needed == NOTHING) {
for (; container < dev->maximum_num_containers; ++container) {
if ((dev->fsa_dev[container].config_waiting_on == 0) &&
(dev->fsa_dev[container].config_needed != NOTHING) &&
time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) {
device_config_needed =
dev->fsa_dev[container].config_needed;
dev->fsa_dev[container].config_needed = NOTHING;
channel = CONTAINER_TO_CHANNEL(container);
id = CONTAINER_TO_ID(container);
lun = CONTAINER_TO_LUN(container);
break;
}
}
}
if (device_config_needed == NOTHING)
return;
/*
* If we decided that a re-configuration needs to be done,
* schedule it here on the way out the door, please close the door
* behind you.
*/
/*
* Find the scsi_device associated with the SCSI address,
* and mark it as changed, invalidating the cache. This deals
* with changes to existing device IDs.
*/
if (!dev || !dev->scsi_host_ptr)
return;
/*
* force reload of disk info via aac_probe_container
*/
if ((channel == CONTAINER_CHANNEL) &&
(device_config_needed != NOTHING)) {
if (dev->fsa_dev[container].valid == 1)
dev->fsa_dev[container].valid = 2;
aac_probe_container(dev, container);
}
device = scsi_device_lookup(dev->scsi_host_ptr, channel, id, lun);
if (device) {
switch (device_config_needed) {
case DELETE:
#if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE))
scsi_remove_device(device);
#else
if (scsi_device_online(device)) {
scsi_device_set_state(device, SDEV_OFFLINE);
sdev_printk(KERN_INFO, device,
"Device offlined - %s\n",
(channel == CONTAINER_CHANNEL) ?
"array deleted" :
"enclosure services event");
}
#endif
break;
case ADD:
if (!scsi_device_online(device)) {
sdev_printk(KERN_INFO, device,
"Device online - %s\n",
(channel == CONTAINER_CHANNEL) ?
"array created" :
"enclosure services event");
scsi_device_set_state(device, SDEV_RUNNING);
}
fallthrough;
case CHANGE:
if ((channel == CONTAINER_CHANNEL)
&& (!dev->fsa_dev[container].valid)) {
#if (defined(AAC_DEBUG_INSTRUMENT_AIF_DELETE))
scsi_remove_device(device);
#else
if (!scsi_device_online(device))
break;
scsi_device_set_state(device, SDEV_OFFLINE);
sdev_printk(KERN_INFO, device,
"Device offlined - %s\n",
"array failed");
#endif
break;
}
scsi_rescan_device(device);
break;
default:
break;
}
scsi_device_put(device);
device_config_needed = NOTHING;
}
if (device_config_needed == ADD)
scsi_add_device(dev->scsi_host_ptr, channel, id, lun);
if (channel == CONTAINER_CHANNEL) {
container++;
device_config_needed = NOTHING;
goto retry_next;
}
}
static void aac_schedule_bus_scan(struct aac_dev *aac)
{
if (aac->sa_firmware)
aac_schedule_safw_scan_worker(aac);
else
aac_schedule_src_reinit_aif_worker(aac);
}
static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type)
{
int index, quirks;
int retval;
struct Scsi_Host *host = aac->scsi_host_ptr;
int jafo = 0;
int bled;
u64 dmamask;
int num_of_fibs = 0;
/*
* Assumptions:
* - host is locked, unless called by the aacraid thread.
* (a matter of convenience, due to legacy issues surrounding
* eh_host_adapter_reset).
* - in_reset is asserted, so no new i/o is getting to the
* card.
* - The card is dead, or will be very shortly ;-/ so no new
* commands are completing in the interrupt service.
*/
aac_adapter_disable_int(aac);
if (aac->thread && aac->thread->pid != current->pid) {
spin_unlock_irq(host->host_lock);
kthread_stop(aac->thread);
aac->thread = NULL;
jafo = 1;
}
/*
* If a positive health, means in a known DEAD PANIC
* state and the adapter could be reset to `try again'.
*/
bled = forced ? 0 : aac_adapter_check_health(aac);
retval = aac_adapter_restart(aac, bled, reset_type);
if (retval)
goto out;
/*
* Loop through the fibs, close the synchronous FIBS
*/
retval = 1;
num_of_fibs = aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB;
for (index = 0; index < num_of_fibs; index++) {
struct fib *fib = &aac->fibs[index];
__le32 XferState = fib->hw_fib_va->header.XferState;
bool is_response_expected = false;
if (!(XferState & cpu_to_le32(NoResponseExpected | Async)) &&
(XferState & cpu_to_le32(ResponseExpected)))
is_response_expected = true;
if (is_response_expected
|| fib->flags & FIB_CONTEXT_FLAG_WAIT) {
unsigned long flagv;
spin_lock_irqsave(&fib->event_lock, flagv);
complete(&fib->event_wait);
spin_unlock_irqrestore(&fib->event_lock, flagv);
schedule();
retval = 0;
}
}
/* Give some extra time for ioctls to complete. */
if (retval == 0)
ssleep(2);
index = aac->cardtype;
/*
* Re-initialize the adapter, first free resources, then carefully
* apply the initialization sequence to come back again. Only risk
* is a change in Firmware dropping cache, it is assumed the caller
* will ensure that i/o is queisced and the card is flushed in that
* case.
*/
aac_free_irq(aac);
aac_fib_map_free(aac);
dma_free_coherent(&aac->pdev->dev, aac->comm_size, aac->comm_addr,
aac->comm_phys);
aac_adapter_ioremap(aac, 0);
aac->comm_addr = NULL;
aac->comm_phys = 0;
kfree(aac->queues);
aac->queues = NULL;
kfree(aac->fsa_dev);
aac->fsa_dev = NULL;
dmamask = DMA_BIT_MASK(32);
quirks = aac_get_driver_ident(index)->quirks;
if (quirks & AAC_QUIRK_31BIT)
retval = dma_set_mask(&aac->pdev->dev, dmamask);
else if (!(quirks & AAC_QUIRK_SRC))
retval = dma_set_mask(&aac->pdev->dev, dmamask);
else
retval = dma_set_coherent_mask(&aac->pdev->dev, dmamask);
if (quirks & AAC_QUIRK_31BIT && !retval) {
dmamask = DMA_BIT_MASK(31);
retval = dma_set_coherent_mask(&aac->pdev->dev, dmamask);
}
if (retval)
goto out;
if ((retval = (*(aac_get_driver_ident(index)->init))(aac)))
goto out;
if (jafo) {
aac->thread = kthread_run(aac_command_thread, aac, "%s",
aac->name);
if (IS_ERR(aac->thread)) {
retval = PTR_ERR(aac->thread);
aac->thread = NULL;
goto out;
}
}
(void)aac_get_adapter_info(aac);
if ((quirks & AAC_QUIRK_34SG) && (host->sg_tablesize > 34)) {
host->sg_tablesize = 34;
host->max_sectors = (host->sg_tablesize * 8) + 112;
}
if ((quirks & AAC_QUIRK_17SG) && (host->sg_tablesize > 17)) {
host->sg_tablesize = 17;
host->max_sectors = (host->sg_tablesize * 8) + 112;
}
aac_get_config_status(aac, 1);
aac_get_containers(aac);
/*
* This is where the assumption that the Adapter is quiesced
* is important.
*/
scsi_host_complete_all_commands(host, DID_RESET);
retval = 0;
out:
aac->in_reset = 0;
/*
* Issue bus rescan to catch any configuration that might have
* occurred
*/
if (!retval && !is_kdump_kernel()) {
dev_info(&aac->pdev->dev, "Scheduling bus rescan\n");
aac_schedule_bus_scan(aac);
}
if (jafo) {
spin_lock_irq(host->host_lock);
}
return retval;
}
int aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type)
{
unsigned long flagv = 0;
int retval, unblock_retval;
struct Scsi_Host *host = aac->scsi_host_ptr;
int bled;
if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0)
return -EBUSY;
if (aac->in_reset) {
spin_unlock_irqrestore(&aac->fib_lock, flagv);
return -EBUSY;
}
aac->in_reset = 1;
spin_unlock_irqrestore(&aac->fib_lock, flagv);
/*
* Wait for all commands to complete to this specific
* target (block maximum 60 seconds). Although not necessary,
* it does make us a good storage citizen.
*/
scsi_host_block(host);
/* Quiesce build, flush cache, write through mode */
if (forced < 2)
aac_send_shutdown(aac);
spin_lock_irqsave(host->host_lock, flagv);
bled = forced ? forced :
(aac_check_reset != 0 && aac_check_reset != 1);
retval = _aac_reset_adapter(aac, bled, reset_type);
spin_unlock_irqrestore(host->host_lock, flagv);
unblock_retval = scsi_host_unblock(host, SDEV_RUNNING);
if (!retval)
retval = unblock_retval;
if ((forced < 2) && (retval == -ENODEV)) {
/* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */
struct fib * fibctx = aac_fib_alloc(aac);
if (fibctx) {
struct aac_pause *cmd;
int status;
aac_fib_init(fibctx);
cmd = (struct aac_pause *) fib_data(fibctx);
cmd->command = cpu_to_le32(VM_ContainerConfig);
cmd->type = cpu_to_le32(CT_PAUSE_IO);
cmd->timeout = cpu_to_le32(1);
cmd->min = cpu_to_le32(1);
cmd->noRescan = cpu_to_le32(1);
cmd->count = cpu_to_le32(0);
status = aac_fib_send(ContainerCommand,
fibctx,
sizeof(struct aac_pause),
FsaNormal,
-2 /* Timeout silently */, 1,
NULL, NULL);
if (status >= 0)
aac_fib_complete(fibctx);
/* FIB should be freed only after getting
* the response from the F/W */
if (status != -ERESTARTSYS)
aac_fib_free(fibctx);
}
}
return retval;
}
int aac_check_health(struct aac_dev * aac)
{
int BlinkLED;
unsigned long time_now, flagv = 0;
struct list_head * entry;
/* Extending the scope of fib_lock slightly to protect aac->in_reset */
if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0)
return 0;
if (aac->in_reset || !(BlinkLED = aac_adapter_check_health(aac))) {
spin_unlock_irqrestore(&aac->fib_lock, flagv);
return 0; /* OK */
}
aac->in_reset = 1;
/* Fake up an AIF:
* aac_aifcmd.command = AifCmdEventNotify = 1
* aac_aifcmd.seqnum = 0xFFFFFFFF
* aac_aifcmd.data[0] = AifEnExpEvent = 23
* aac_aifcmd.data[1] = AifExeFirmwarePanic = 3
* aac.aifcmd.data[2] = AifHighPriority = 3
* aac.aifcmd.data[3] = BlinkLED
*/
time_now = jiffies/HZ;
entry = aac->fib_list.next;
/*
* For each Context that is on the
* fibctxList, make a copy of the
* fib, and then set the event to wake up the
* thread that is waiting for it.
*/
while (entry != &aac->fib_list) {
/*
* Extract the fibctx
*/
struct aac_fib_context *fibctx = list_entry(entry, struct aac_fib_context, next);
struct hw_fib * hw_fib;
struct fib * fib;
/*
* Check if the queue is getting
* backlogged
*/
if (fibctx->count > 20) {
/*
* It's *not* jiffies folks,
* but jiffies / HZ, so do not
* panic ...
*/
u32 time_last = fibctx->jiffies;
/*
* Has it been > 2 minutes
* since the last read off
* the queue?
*/
if ((time_now - time_last) > aif_timeout) {
entry = entry->next;
aac_close_fib_context(aac, fibctx);
continue;
}
}
/*
* Warning: no sleep allowed while
* holding spinlock
*/
hw_fib = kzalloc(sizeof(struct hw_fib), GFP_ATOMIC);
fib = kzalloc(sizeof(struct fib), GFP_ATOMIC);
if (fib && hw_fib) {
struct aac_aifcmd * aif;
fib->hw_fib_va = hw_fib;
fib->dev = aac;
aac_fib_init(fib);
fib->type = FSAFS_NTC_FIB_CONTEXT;
fib->size = sizeof (struct fib);
fib->data = hw_fib->data;
aif = (struct aac_aifcmd *)hw_fib->data;
aif->command = cpu_to_le32(AifCmdEventNotify);
aif->seqnum = cpu_to_le32(0xFFFFFFFF);
((__le32 *)aif->data)[0] = cpu_to_le32(AifEnExpEvent);
((__le32 *)aif->data)[1] = cpu_to_le32(AifExeFirmwarePanic);
((__le32 *)aif->data)[2] = cpu_to_le32(AifHighPriority);
((__le32 *)aif->data)[3] = cpu_to_le32(BlinkLED);
/*
* Put the FIB onto the
* fibctx's fibs
*/
list_add_tail(&fib->fiblink, &fibctx->fib_list);
fibctx->count++;
/*
* Set the event to wake up the
* thread that will waiting.
*/
complete(&fibctx->completion);
} else {
printk(KERN_WARNING "aifd: didn't allocate NewFib.\n");
kfree(fib);
kfree(hw_fib);
}
entry = entry->next;
}
spin_unlock_irqrestore(&aac->fib_lock, flagv);
if (BlinkLED < 0) {
printk(KERN_ERR "%s: Host adapter is dead (or got a PCI error) %d\n",
aac->name, BlinkLED);
goto out;
}
printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED);
out:
aac->in_reset = 0;
return BlinkLED;
}
static inline int is_safw_raid_volume(struct aac_dev *aac, int bus, int target)
{
return bus == CONTAINER_CHANNEL && target < aac->maximum_num_containers;
}
static struct scsi_device *aac_lookup_safw_scsi_device(struct aac_dev *dev,
int bus,
int target)
{
if (bus != CONTAINER_CHANNEL)
bus = aac_phys_to_logical(bus);
return scsi_device_lookup(dev->scsi_host_ptr, bus, target, 0);
}
static int aac_add_safw_device(struct aac_dev *dev, int bus, int target)
{
if (bus != CONTAINER_CHANNEL)
bus = aac_phys_to_logical(bus);
return scsi_add_device(dev->scsi_host_ptr, bus, target, 0);
}
static void aac_put_safw_scsi_device(struct scsi_device *sdev)
{
if (sdev)
scsi_device_put(sdev);
}
static void aac_remove_safw_device(struct aac_dev *dev, int bus, int target)
{
struct scsi_device *sdev;
sdev = aac_lookup_safw_scsi_device(dev, bus, target);
scsi_remove_device(sdev);
aac_put_safw_scsi_device(sdev);
}
static inline int aac_is_safw_scan_count_equal(struct aac_dev *dev,
int bus, int target)
{
return dev->hba_map[bus][target].scan_counter == dev->scan_counter;
}
static int aac_is_safw_target_valid(struct aac_dev *dev, int bus, int target)
{
if (is_safw_raid_volume(dev, bus, target))
return dev->fsa_dev[target].valid;
else
return aac_is_safw_scan_count_equal(dev, bus, target);
}
static int aac_is_safw_device_exposed(struct aac_dev *dev, int bus, int target)
{
int is_exposed = 0;
struct scsi_device *sdev;
sdev = aac_lookup_safw_scsi_device(dev, bus, target);
if (sdev)
is_exposed = 1;
aac_put_safw_scsi_device(sdev);
return is_exposed;
}
static int aac_update_safw_host_devices(struct aac_dev *dev)
{
int i;
int bus;
int target;
int is_exposed = 0;
int rcode = 0;
rcode = aac_setup_safw_adapter(dev);
if (unlikely(rcode < 0)) {
goto out;
}
for (i = 0; i < AAC_BUS_TARGET_LOOP; i++) {
bus = get_bus_number(i);
target = get_target_number(i);
is_exposed = aac_is_safw_device_exposed(dev, bus, target);
if (aac_is_safw_target_valid(dev, bus, target) && !is_exposed)
aac_add_safw_device(dev, bus, target);
else if (!aac_is_safw_target_valid(dev, bus, target) &&
is_exposed)
aac_remove_safw_device(dev, bus, target);
}
out:
return rcode;
}
static int aac_scan_safw_host(struct aac_dev *dev)
{
int rcode = 0;
rcode = aac_update_safw_host_devices(dev);
if (rcode)
aac_schedule_safw_scan_worker(dev);
return rcode;
}
int aac_scan_host(struct aac_dev *dev)
{
int rcode = 0;
mutex_lock(&dev->scan_mutex);
if (dev->sa_firmware)
rcode = aac_scan_safw_host(dev);
else
scsi_scan_host(dev->scsi_host_ptr);
mutex_unlock(&dev->scan_mutex);
return rcode;
}
void aac_src_reinit_aif_worker(struct work_struct *work)
{
struct aac_dev *dev = container_of(to_delayed_work(work),
struct aac_dev, src_reinit_aif_worker);
wait_event(dev->scsi_host_ptr->host_wait,
!scsi_host_in_recovery(dev->scsi_host_ptr));
aac_reinit_aif(dev, dev->cardtype);
}
/**
* aac_handle_sa_aif - Handle a message from the firmware
* @dev: Which adapter this fib is from
* @fibptr: Pointer to fibptr from adapter
*
* This routine handles a driver notify fib from the adapter and
* dispatches it to the appropriate routine for handling.
*/
static void aac_handle_sa_aif(struct aac_dev *dev, struct fib *fibptr)
{
int i;
u32 events = 0;
if (fibptr->hbacmd_size & SA_AIF_HOTPLUG)
events = SA_AIF_HOTPLUG;
else if (fibptr->hbacmd_size & SA_AIF_HARDWARE)
events = SA_AIF_HARDWARE;
else if (fibptr->hbacmd_size & SA_AIF_PDEV_CHANGE)
events = SA_AIF_PDEV_CHANGE;
else if (fibptr->hbacmd_size & SA_AIF_LDEV_CHANGE)
events = SA_AIF_LDEV_CHANGE;
else if (fibptr->hbacmd_size & SA_AIF_BPSTAT_CHANGE)
events = SA_AIF_BPSTAT_CHANGE;
else if (fibptr->hbacmd_size & SA_AIF_BPCFG_CHANGE)
events = SA_AIF_BPCFG_CHANGE;
switch (events) {
case SA_AIF_HOTPLUG:
case SA_AIF_HARDWARE:
case SA_AIF_PDEV_CHANGE:
case SA_AIF_LDEV_CHANGE:
case SA_AIF_BPCFG_CHANGE:
aac_scan_host(dev);
break;
case SA_AIF_BPSTAT_CHANGE:
/* currently do nothing */
break;
}
for (i = 1; i <= 10; ++i) {
events = src_readl(dev, MUnit.IDR);
if (events & (1<<23)) {
pr_warn(" AIF not cleared by firmware - %d/%d)\n",
i, 10);
ssleep(1);
}
}
}
static int get_fib_count(struct aac_dev *dev)
{
unsigned int num = 0;
struct list_head *entry;
unsigned long flagv;
/*
* Warning: no sleep allowed while
* holding spinlock. We take the estimate
* and pre-allocate a set of fibs outside the
* lock.
*/
num = le32_to_cpu(dev->init->r7.adapter_fibs_size)
/ sizeof(struct hw_fib); /* some extra */
spin_lock_irqsave(&dev->fib_lock, flagv);
entry = dev->fib_list.next;
while (entry != &dev->fib_list) {
entry = entry->next;
++num;
}
spin_unlock_irqrestore(&dev->fib_lock, flagv);
return num;
}
static int fillup_pools(struct aac_dev *dev, struct hw_fib **hw_fib_pool,
struct fib **fib_pool,
unsigned int num)
{
struct hw_fib **hw_fib_p;
struct fib **fib_p;
hw_fib_p = hw_fib_pool;
fib_p = fib_pool;
while (hw_fib_p < &hw_fib_pool[num]) {
*(hw_fib_p) = kmalloc(sizeof(struct hw_fib), GFP_KERNEL);
if (!(*(hw_fib_p++))) {
--hw_fib_p;
break;
}
*(fib_p) = kmalloc(sizeof(struct fib), GFP_KERNEL);
if (!(*(fib_p++))) {
kfree(*(--hw_fib_p));
break;
}
}
/*
* Get the actual number of allocated fibs
*/
num = hw_fib_p - hw_fib_pool;
return num;
}
static void wakeup_fibctx_threads(struct aac_dev *dev,
struct hw_fib **hw_fib_pool,
struct fib **fib_pool,
struct fib *fib,
struct hw_fib *hw_fib,
unsigned int num)
{
unsigned long flagv;
struct list_head *entry;
struct hw_fib **hw_fib_p;
struct fib **fib_p;
u32 time_now, time_last;
struct hw_fib *hw_newfib;
struct fib *newfib;
struct aac_fib_context *fibctx;
time_now = jiffies/HZ;
spin_lock_irqsave(&dev->fib_lock, flagv);
entry = dev->fib_list.next;
/*
* For each Context that is on the
* fibctxList, make a copy of the
* fib, and then set the event to wake up the
* thread that is waiting for it.
*/
hw_fib_p = hw_fib_pool;
fib_p = fib_pool;
while (entry != &dev->fib_list) {
/*
* Extract the fibctx
*/
fibctx = list_entry(entry, struct aac_fib_context,
next);
/*
* Check if the queue is getting
* backlogged
*/
if (fibctx->count > 20) {
/*
* It's *not* jiffies folks,
* but jiffies / HZ so do not
* panic ...
*/
time_last = fibctx->jiffies;
/*
* Has it been > 2 minutes
* since the last read off
* the queue?
*/
if ((time_now - time_last) > aif_timeout) {
entry = entry->next;
aac_close_fib_context(dev, fibctx);
continue;
}
}
/*
* Warning: no sleep allowed while
* holding spinlock
*/
if (hw_fib_p >= &hw_fib_pool[num]) {
pr_warn("aifd: didn't allocate NewFib\n");
entry = entry->next;
continue;
}
hw_newfib = *hw_fib_p;
*(hw_fib_p++) = NULL;
newfib = *fib_p;
*(fib_p++) = NULL;
/*
* Make the copy of the FIB
*/
memcpy(hw_newfib, hw_fib, sizeof(struct hw_fib));
memcpy(newfib, fib, sizeof(struct fib));
newfib->hw_fib_va = hw_newfib;
/*
* Put the FIB onto the
* fibctx's fibs
*/
list_add_tail(&newfib->fiblink, &fibctx->fib_list);
fibctx->count++;
/*
* Set the event to wake up the
* thread that is waiting.
*/
complete(&fibctx->completion);
entry = entry->next;
}
/*
* Set the status of this FIB
*/
*(__le32 *)hw_fib->data = cpu_to_le32(ST_OK);
aac_fib_adapter_complete(fib, sizeof(u32));
spin_unlock_irqrestore(&dev->fib_lock, flagv);
}
static void aac_process_events(struct aac_dev *dev)
{
struct hw_fib *hw_fib;
struct fib *fib;
unsigned long flags;
spinlock_t *t_lock;
t_lock = dev->queues->queue[HostNormCmdQueue].lock;
spin_lock_irqsave(t_lock, flags);
while (!list_empty(&(dev->queues->queue[HostNormCmdQueue].cmdq))) {
struct list_head *entry;
struct aac_aifcmd *aifcmd;
unsigned int num;
struct hw_fib **hw_fib_pool, **hw_fib_p;
struct fib **fib_pool, **fib_p;
set_current_state(TASK_RUNNING);
entry = dev->queues->queue[HostNormCmdQueue].cmdq.next;
list_del(entry);
t_lock = dev->queues->queue[HostNormCmdQueue].lock;
spin_unlock_irqrestore(t_lock, flags);
fib = list_entry(entry, struct fib, fiblink);
hw_fib = fib->hw_fib_va;
if (dev->sa_firmware) {
/* Thor AIF */
aac_handle_sa_aif(dev, fib);
aac_fib_adapter_complete(fib, (u16)sizeof(u32));
goto free_fib;
}
/*
* We will process the FIB here or pass it to a
* worker thread that is TBD. We Really can't
* do anything at this point since we don't have
* anything defined for this thread to do.
*/
memset(fib, 0, sizeof(struct fib));
fib->type = FSAFS_NTC_FIB_CONTEXT;
fib->size = sizeof(struct fib);
fib->hw_fib_va = hw_fib;
fib->data = hw_fib->data;
fib->dev = dev;
/*
* We only handle AifRequest fibs from the adapter.
*/
aifcmd = (struct aac_aifcmd *) hw_fib->data;
if (aifcmd->command == cpu_to_le32(AifCmdDriverNotify)) {
/* Handle Driver Notify Events */
aac_handle_aif(dev, fib);
*(__le32 *)hw_fib->data = cpu_to_le32(ST_OK);
aac_fib_adapter_complete(fib, (u16)sizeof(u32));
goto free_fib;
}
/*
* The u32 here is important and intended. We are using
* 32bit wrapping time to fit the adapter field
*/
/* Sniff events */
if (aifcmd->command == cpu_to_le32(AifCmdEventNotify)
|| aifcmd->command == cpu_to_le32(AifCmdJobProgress)) {
aac_handle_aif(dev, fib);
}
/*
* get number of fibs to process
*/
num = get_fib_count(dev);
if (!num)
goto free_fib;
hw_fib_pool = kmalloc_array(num, sizeof(struct hw_fib *),
GFP_KERNEL);
if (!hw_fib_pool)
goto free_fib;
fib_pool = kmalloc_array(num, sizeof(struct fib *), GFP_KERNEL);
if (!fib_pool)
goto free_hw_fib_pool;
/*
* Fill up fib pointer pools with actual fibs
* and hw_fibs
*/
num = fillup_pools(dev, hw_fib_pool, fib_pool, num);
if (!num)
goto free_mem;
/*
* wakeup the thread that is waiting for
* the response from fw (ioctl)
*/
wakeup_fibctx_threads(dev, hw_fib_pool, fib_pool,
fib, hw_fib, num);
free_mem:
/* Free up the remaining resources */
hw_fib_p = hw_fib_pool;
fib_p = fib_pool;
while (hw_fib_p < &hw_fib_pool[num]) {
kfree(*hw_fib_p);
kfree(*fib_p);
++fib_p;
++hw_fib_p;
}
kfree(fib_pool);
free_hw_fib_pool:
kfree(hw_fib_pool);
free_fib:
kfree(fib);
t_lock = dev->queues->queue[HostNormCmdQueue].lock;
spin_lock_irqsave(t_lock, flags);
}
/*
* There are no more AIF's
*/
t_lock = dev->queues->queue[HostNormCmdQueue].lock;
spin_unlock_irqrestore(t_lock, flags);
}
static int aac_send_wellness_command(struct aac_dev *dev, char *wellness_str,
u32 datasize)
{
struct aac_srb *srbcmd;
struct sgmap64 *sg64;
dma_addr_t addr;
char *dma_buf;
struct fib *fibptr;
int ret = -ENOMEM;
u32 vbus, vid;
fibptr = aac_fib_alloc(dev);
if (!fibptr)
goto out;
dma_buf = dma_alloc_coherent(&dev->pdev->dev, datasize, &addr,
GFP_KERNEL);
if (!dma_buf)
goto fib_free_out;
aac_fib_init(fibptr);
vbus = (u32)le16_to_cpu(dev->supplement_adapter_info.virt_device_bus);
vid = (u32)le16_to_cpu(dev->supplement_adapter_info.virt_device_target);
srbcmd = (struct aac_srb *)fib_data(fibptr);
srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
srbcmd->channel = cpu_to_le32(vbus);
srbcmd->id = cpu_to_le32(vid);
srbcmd->lun = 0;
srbcmd->flags = cpu_to_le32(SRB_DataOut);
srbcmd->timeout = cpu_to_le32(10);
srbcmd->retry_limit = 0;
srbcmd->cdb_size = cpu_to_le32(12);
srbcmd->count = cpu_to_le32(datasize);
memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
srbcmd->cdb[0] = BMIC_OUT;
srbcmd->cdb[6] = WRITE_HOST_WELLNESS;
memcpy(dma_buf, (char *)wellness_str, datasize);
sg64 = (struct sgmap64 *)&srbcmd->sg;
sg64->count = cpu_to_le32(1);
sg64->sg[0].addr[1] = cpu_to_le32((u32)(((addr) >> 16) >> 16));
sg64->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
sg64->sg[0].count = cpu_to_le32(datasize);
ret = aac_fib_send(ScsiPortCommand64, fibptr, sizeof(struct aac_srb),
FsaNormal, 1, 1, NULL, NULL);
dma_free_coherent(&dev->pdev->dev, datasize, dma_buf, addr);
/*
* Do not set XferState to zero unless
* receives a response from F/W
*/
if (ret >= 0)
aac_fib_complete(fibptr);
/*
* FIB should be freed only after
* getting the response from the F/W
*/
if (ret != -ERESTARTSYS)
goto fib_free_out;
out:
return ret;
fib_free_out:
aac_fib_free(fibptr);
goto out;
}
static int aac_send_safw_hostttime(struct aac_dev *dev, struct timespec64 *now)
{
struct tm cur_tm;
char wellness_str[] = "<HW>TD\010\0\0\0\0\0\0\0\0\0DW\0\0ZZ";
u32 datasize = sizeof(wellness_str);
time64_t local_time;
int ret = -ENODEV;
if (!dev->sa_firmware)
goto out;
local_time = (now->tv_sec - (sys_tz.tz_minuteswest * 60));
time64_to_tm(local_time, 0, &cur_tm);
cur_tm.tm_mon += 1;
cur_tm.tm_year += 1900;
wellness_str[8] = bin2bcd(cur_tm.tm_hour);
wellness_str[9] = bin2bcd(cur_tm.tm_min);
wellness_str[10] = bin2bcd(cur_tm.tm_sec);
wellness_str[12] = bin2bcd(cur_tm.tm_mon);
wellness_str[13] = bin2bcd(cur_tm.tm_mday);
wellness_str[14] = bin2bcd(cur_tm.tm_year / 100);
wellness_str[15] = bin2bcd(cur_tm.tm_year % 100);
ret = aac_send_wellness_command(dev, wellness_str, datasize);
out:
return ret;
}
static int aac_send_hosttime(struct aac_dev *dev, struct timespec64 *now)
{
int ret = -ENOMEM;
struct fib *fibptr;
__le32 *info;
fibptr = aac_fib_alloc(dev);
if (!fibptr)
goto out;
aac_fib_init(fibptr);
info = (__le32 *)fib_data(fibptr);
*info = cpu_to_le32(now->tv_sec); /* overflow in y2106 */
ret = aac_fib_send(SendHostTime, fibptr, sizeof(*info), FsaNormal,
1, 1, NULL, NULL);
/*
* Do not set XferState to zero unless
* receives a response from F/W
*/
if (ret >= 0)
aac_fib_complete(fibptr);
/*
* FIB should be freed only after
* getting the response from the F/W
*/
if (ret != -ERESTARTSYS)
aac_fib_free(fibptr);
out:
return ret;
}
/**
* aac_command_thread - command processing thread
* @data: Adapter to monitor
*
* Waits on the commandready event in it's queue. When the event gets set
* it will pull FIBs off it's queue. It will continue to pull FIBs off
* until the queue is empty. When the queue is empty it will wait for
* more FIBs.
*/
int aac_command_thread(void *data)
{
struct aac_dev *dev = data;
DECLARE_WAITQUEUE(wait, current);
unsigned long next_jiffies = jiffies + HZ;
unsigned long next_check_jiffies = next_jiffies;
long difference = HZ;
/*
* We can only have one thread per adapter for AIF's.
*/
if (dev->aif_thread)
return -EINVAL;
/*
* Let the DPC know it has a place to send the AIF's to.
*/
dev->aif_thread = 1;
add_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait);
set_current_state(TASK_INTERRUPTIBLE);
dprintk ((KERN_INFO "aac_command_thread start\n"));
while (1) {
aac_process_events(dev);
/*
* Background activity
*/
if ((time_before(next_check_jiffies,next_jiffies))
&& ((difference = next_check_jiffies - jiffies) <= 0)) {
next_check_jiffies = next_jiffies;
if (aac_adapter_check_health(dev) == 0) {
difference = ((long)(unsigned)check_interval)
* HZ;
next_check_jiffies = jiffies + difference;
} else if (!dev->queues)
break;
}
if (!time_before(next_check_jiffies,next_jiffies)
&& ((difference = next_jiffies - jiffies) <= 0)) {
struct timespec64 now;
int ret;
/* Don't even try to talk to adapter if its sick */
ret = aac_adapter_check_health(dev);
if (ret || !dev->queues)
break;
next_check_jiffies = jiffies
+ ((long)(unsigned)check_interval)
* HZ;
ktime_get_real_ts64(&now);
/* Synchronize our watches */
if (((NSEC_PER_SEC - (NSEC_PER_SEC / HZ)) > now.tv_nsec)
&& (now.tv_nsec > (NSEC_PER_SEC / HZ)))
difference = HZ + HZ / 2 -
now.tv_nsec / (NSEC_PER_SEC / HZ);
else {
if (now.tv_nsec > NSEC_PER_SEC / 2)
++now.tv_sec;
if (dev->sa_firmware)
ret =
aac_send_safw_hostttime(dev, &now);
else
ret = aac_send_hosttime(dev, &now);
difference = (long)(unsigned)update_interval*HZ;
}
next_jiffies = jiffies + difference;
if (time_before(next_check_jiffies,next_jiffies))
difference = next_check_jiffies - jiffies;
}
if (difference <= 0)
difference = 1;
set_current_state(TASK_INTERRUPTIBLE);
if (kthread_should_stop())
break;
/*
* we probably want usleep_range() here instead of the
* jiffies computation
*/
schedule_timeout(difference);
if (kthread_should_stop())
break;
}
if (dev->queues)
remove_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait);
dev->aif_thread = 0;
return 0;
}
int aac_acquire_irq(struct aac_dev *dev)
{
int i;
int j;
int ret = 0;
if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
for (i = 0; i < dev->max_msix; i++) {
dev->aac_msix[i].vector_no = i;
dev->aac_msix[i].dev = dev;
if (request_irq(pci_irq_vector(dev->pdev, i),
dev->a_ops.adapter_intr,
0, "aacraid", &(dev->aac_msix[i]))) {
printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
dev->name, dev->id, i);
for (j = 0 ; j < i ; j++)
free_irq(pci_irq_vector(dev->pdev, j),
&(dev->aac_msix[j]));
pci_disable_msix(dev->pdev);
ret = -1;
}
}
} else {
dev->aac_msix[0].vector_no = 0;
dev->aac_msix[0].dev = dev;
if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
IRQF_SHARED, "aacraid",
&(dev->aac_msix[0])) < 0) {
if (dev->msi)
pci_disable_msi(dev->pdev);
printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
dev->name, dev->id);
ret = -1;
}
}
return ret;
}
void aac_free_irq(struct aac_dev *dev)
{
int i;
if (aac_is_src(dev)) {
if (dev->max_msix > 1) {
for (i = 0; i < dev->max_msix; i++)
free_irq(pci_irq_vector(dev->pdev, i),
&(dev->aac_msix[i]));
} else {
free_irq(dev->pdev->irq, &(dev->aac_msix[0]));
}
} else {
free_irq(dev->pdev->irq, dev);
}
if (dev->msi)
pci_disable_msi(dev->pdev);
else if (dev->max_msix > 1)
pci_disable_msix(dev->pdev);
}
|
linux-master
|
drivers/scsi/aacraid/commsup.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* rkt.c
*
* Abstract: Hardware miniport for Drawbridge specific hardware functions.
*/
#include <linux/blkdev.h>
#include <scsi/scsi_host.h>
#include "aacraid.h"
#define AAC_NUM_IO_FIB_RKT (246 - AAC_NUM_MGT_FIB)
/**
* aac_rkt_select_comm - Select communications method
* @dev: Adapter
* @comm: communications method
*/
static int aac_rkt_select_comm(struct aac_dev *dev, int comm)
{
int retval;
retval = aac_rx_select_comm(dev, comm);
if (comm == AAC_COMM_MESSAGE) {
/*
* FIB Setup has already been done, but we can minimize the
* damage by at least ensuring the OS never issues more
* commands than we can handle. The Rocket adapters currently
* can only handle 246 commands and 8 AIFs at the same time,
* and in fact do notify us accordingly if we negotiate the
* FIB size. The problem that causes us to add this check is
* to ensure that we do not overdo it with the adapter when a
* hard coded FIB override is being utilized. This special
* case warrants this half baked, but convenient, check here.
*/
if (dev->scsi_host_ptr->can_queue > AAC_NUM_IO_FIB_RKT) {
dev->init->r7.max_io_commands =
cpu_to_le32(AAC_NUM_IO_FIB_RKT + AAC_NUM_MGT_FIB);
dev->scsi_host_ptr->can_queue = AAC_NUM_IO_FIB_RKT;
}
}
return retval;
}
/**
* aac_rkt_ioremap
* @dev: device to ioremap
* @size: mapping resize request
*
*/
static int aac_rkt_ioremap(struct aac_dev * dev, u32 size)
{
if (!size) {
iounmap(dev->regs.rkt);
return 0;
}
dev->base = dev->regs.rkt = ioremap(dev->base_start, size);
if (dev->base == NULL)
return -1;
dev->IndexRegs = &dev->regs.rkt->IndexRegs;
return 0;
}
/**
* aac_rkt_init - initialize an i960 based AAC card
* @dev: device to configure
*
* Allocate and set up resources for the i960 based AAC variants. The
* device_interface in the commregion will be allocated and linked
* to the comm region.
*/
int aac_rkt_init(struct aac_dev *dev)
{
/*
* Fill in the function dispatch table.
*/
dev->a_ops.adapter_ioremap = aac_rkt_ioremap;
dev->a_ops.adapter_comm = aac_rkt_select_comm;
return _aac_rx_init(dev);
}
|
linux-master
|
drivers/scsi/aacraid/rkt.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* linit.c
*
* Abstract: Linux Driver entry module for Adaptec RAID Array Controller
*/
#include <linux/compat.h>
#include <linux/blkdev.h>
#include <linux/blk-mq-pci.h>
#include <linux/completion.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/syscalls.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/msdos_partition.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <scsi/scsi_eh.h>
#include "aacraid.h"
#define AAC_DRIVER_VERSION "1.2.1"
#ifndef AAC_DRIVER_BRANCH
#define AAC_DRIVER_BRANCH ""
#endif
#define AAC_DRIVERNAME "aacraid"
#ifdef AAC_DRIVER_BUILD
#define _str(x) #x
#define str(x) _str(x)
#define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION "[" str(AAC_DRIVER_BUILD) "]" AAC_DRIVER_BRANCH
#else
#define AAC_DRIVER_FULL_VERSION AAC_DRIVER_VERSION AAC_DRIVER_BRANCH
#endif
MODULE_AUTHOR("Red Hat Inc and Adaptec");
MODULE_DESCRIPTION("Dell PERC2, 2/Si, 3/Si, 3/Di, "
"Adaptec Advanced Raid Products, "
"HP NetRAID-4M, IBM ServeRAID & ICP SCSI driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(AAC_DRIVER_FULL_VERSION);
static DEFINE_MUTEX(aac_mutex);
static LIST_HEAD(aac_devices);
static int aac_cfg_major = AAC_CHARDEV_UNREGISTERED;
char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
/*
* Because of the way Linux names scsi devices, the order in this table has
* become important. Check for on-board Raid first, add-in cards second.
*
* Note: The last field is used to index into aac_drivers below.
*/
static const struct pci_device_id aac_pci_tbl[] = {
{ 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
{ 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
{ 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
{ 0x1028, 0x0004, 0x1028, 0x00d0, 0, 0, 3 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
{ 0x1028, 0x0002, 0x1028, 0x00d1, 0, 0, 4 }, /* PERC 3/Di (Viper/PERC3DiV) */
{ 0x1028, 0x0002, 0x1028, 0x00d9, 0, 0, 5 }, /* PERC 3/Di (Lexus/PERC3DiL) */
{ 0x1028, 0x000a, 0x1028, 0x0106, 0, 0, 6 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
{ 0x1028, 0x000a, 0x1028, 0x011b, 0, 0, 7 }, /* PERC 3/Di (Dagger/PERC3DiD) */
{ 0x1028, 0x000a, 0x1028, 0x0121, 0, 0, 8 }, /* PERC 3/Di (Boxster/PERC3DiB) */
{ 0x9005, 0x0283, 0x9005, 0x0283, 0, 0, 9 }, /* catapult */
{ 0x9005, 0x0284, 0x9005, 0x0284, 0, 0, 10 }, /* tomcat */
{ 0x9005, 0x0285, 0x9005, 0x0286, 0, 0, 11 }, /* Adaptec 2120S (Crusader) */
{ 0x9005, 0x0285, 0x9005, 0x0285, 0, 0, 12 }, /* Adaptec 2200S (Vulcan) */
{ 0x9005, 0x0285, 0x9005, 0x0287, 0, 0, 13 }, /* Adaptec 2200S (Vulcan-2m) */
{ 0x9005, 0x0285, 0x17aa, 0x0286, 0, 0, 14 }, /* Legend S220 (Legend Crusader) */
{ 0x9005, 0x0285, 0x17aa, 0x0287, 0, 0, 15 }, /* Legend S230 (Legend Vulcan) */
{ 0x9005, 0x0285, 0x9005, 0x0288, 0, 0, 16 }, /* Adaptec 3230S (Harrier) */
{ 0x9005, 0x0285, 0x9005, 0x0289, 0, 0, 17 }, /* Adaptec 3240S (Tornado) */
{ 0x9005, 0x0285, 0x9005, 0x028a, 0, 0, 18 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
{ 0x9005, 0x0285, 0x9005, 0x028b, 0, 0, 19 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
{ 0x9005, 0x0286, 0x9005, 0x028c, 0, 0, 20 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
{ 0x9005, 0x0286, 0x9005, 0x028d, 0, 0, 21 }, /* ASR-2130S (Lancer) */
{ 0x9005, 0x0286, 0x9005, 0x029b, 0, 0, 22 }, /* AAR-2820SA (Intruder) */
{ 0x9005, 0x0286, 0x9005, 0x029c, 0, 0, 23 }, /* AAR-2620SA (Intruder) */
{ 0x9005, 0x0286, 0x9005, 0x029d, 0, 0, 24 }, /* AAR-2420SA (Intruder) */
{ 0x9005, 0x0286, 0x9005, 0x029e, 0, 0, 25 }, /* ICP9024RO (Lancer) */
{ 0x9005, 0x0286, 0x9005, 0x029f, 0, 0, 26 }, /* ICP9014RO (Lancer) */
{ 0x9005, 0x0286, 0x9005, 0x02a0, 0, 0, 27 }, /* ICP9047MA (Lancer) */
{ 0x9005, 0x0286, 0x9005, 0x02a1, 0, 0, 28 }, /* ICP9087MA (Lancer) */
{ 0x9005, 0x0286, 0x9005, 0x02a3, 0, 0, 29 }, /* ICP5445AU (Hurricane44) */
{ 0x9005, 0x0285, 0x9005, 0x02a4, 0, 0, 30 }, /* ICP9085LI (Marauder-X) */
{ 0x9005, 0x0285, 0x9005, 0x02a5, 0, 0, 31 }, /* ICP5085BR (Marauder-E) */
{ 0x9005, 0x0286, 0x9005, 0x02a6, 0, 0, 32 }, /* ICP9067MA (Intruder-6) */
{ 0x9005, 0x0287, 0x9005, 0x0800, 0, 0, 33 }, /* Themisto Jupiter Platform */
{ 0x9005, 0x0200, 0x9005, 0x0200, 0, 0, 33 }, /* Themisto Jupiter Platform */
{ 0x9005, 0x0286, 0x9005, 0x0800, 0, 0, 34 }, /* Callisto Jupiter Platform */
{ 0x9005, 0x0285, 0x9005, 0x028e, 0, 0, 35 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
{ 0x9005, 0x0285, 0x9005, 0x028f, 0, 0, 36 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
{ 0x9005, 0x0285, 0x9005, 0x0290, 0, 0, 37 }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
{ 0x9005, 0x0285, 0x1028, 0x0291, 0, 0, 38 }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
{ 0x9005, 0x0285, 0x9005, 0x0292, 0, 0, 39 }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
{ 0x9005, 0x0285, 0x9005, 0x0293, 0, 0, 40 }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
{ 0x9005, 0x0285, 0x9005, 0x0294, 0, 0, 41 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
{ 0x9005, 0x0285, 0x103C, 0x3227, 0, 0, 42 }, /* AAR-2610SA PCI SATA 6ch */
{ 0x9005, 0x0285, 0x9005, 0x0296, 0, 0, 43 }, /* ASR-2240S (SabreExpress) */
{ 0x9005, 0x0285, 0x9005, 0x0297, 0, 0, 44 }, /* ASR-4005 */
{ 0x9005, 0x0285, 0x1014, 0x02F2, 0, 0, 45 }, /* IBM 8i (AvonPark) */
{ 0x9005, 0x0285, 0x1014, 0x0312, 0, 0, 45 }, /* IBM 8i (AvonPark Lite) */
{ 0x9005, 0x0286, 0x1014, 0x9580, 0, 0, 46 }, /* IBM 8k/8k-l8 (Aurora) */
{ 0x9005, 0x0286, 0x1014, 0x9540, 0, 0, 47 }, /* IBM 8k/8k-l4 (Aurora Lite) */
{ 0x9005, 0x0285, 0x9005, 0x0298, 0, 0, 48 }, /* ASR-4000 (BlackBird) */
{ 0x9005, 0x0285, 0x9005, 0x0299, 0, 0, 49 }, /* ASR-4800SAS (Marauder-X) */
{ 0x9005, 0x0285, 0x9005, 0x029a, 0, 0, 50 }, /* ASR-4805SAS (Marauder-E) */
{ 0x9005, 0x0286, 0x9005, 0x02a2, 0, 0, 51 }, /* ASR-3800 (Hurricane44) */
{ 0x9005, 0x0285, 0x1028, 0x0287, 0, 0, 52 }, /* Perc 320/DC*/
{ 0x1011, 0x0046, 0x9005, 0x0365, 0, 0, 53 }, /* Adaptec 5400S (Mustang)*/
{ 0x1011, 0x0046, 0x9005, 0x0364, 0, 0, 54 }, /* Adaptec 5400S (Mustang)*/
{ 0x1011, 0x0046, 0x9005, 0x1364, 0, 0, 55 }, /* Dell PERC2/QC */
{ 0x1011, 0x0046, 0x103c, 0x10c2, 0, 0, 56 }, /* HP NetRAID-4M */
{ 0x9005, 0x0285, 0x1028, PCI_ANY_ID, 0, 0, 57 }, /* Dell Catchall */
{ 0x9005, 0x0285, 0x17aa, PCI_ANY_ID, 0, 0, 58 }, /* Legend Catchall */
{ 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
{ 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
{ 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
{ 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
{ 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
{ 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
{ 0,}
};
MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
/*
* dmb - For now we add the number of channels to this structure.
* In the future we should add a fib that reports the number of channels
* for the card. At that time we can remove the channels from here
*/
static struct aac_driver_ident aac_drivers[] = {
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
{ aac_rx_init, "percraid", "DELL ", "PERCRAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "catapult ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
{ aac_rx_init, "aacraid", "ADAPTEC ", "tomcat ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
{ aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2120S ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2120S (Crusader) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 2200S ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
{ aac_rx_init, "aacraid", "Legend ", "Legend S220 ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
{ aac_rx_init, "aacraid", "Legend ", "Legend S230 ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 3230S ", 2 }, /* Adaptec 3230S (Harrier) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "Adaptec 3240S ", 2 }, /* Adaptec 3240S (Tornado) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2020ZCR ", 2 }, /* ASR-2020ZCR SCSI PCI-X ZCR (Skyhawk) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2025ZCR ", 2 }, /* ASR-2025ZCR SCSI SO-DIMM PCI-X ZCR (Terminator) */
{ aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-2230S PCI-X ", 2 }, /* ASR-2230S + ASR-2230SLP PCI-X (Lancer) */
{ aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-2130S PCI-X ", 1 }, /* ASR-2130S (Lancer) */
{ aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2820SA ", 1 }, /* AAR-2820SA (Intruder) */
{ aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2620SA ", 1 }, /* AAR-2620SA (Intruder) */
{ aac_rkt_init, "aacraid", "ADAPTEC ", "AAR-2420SA ", 1 }, /* AAR-2420SA (Intruder) */
{ aac_rkt_init, "aacraid", "ICP ", "ICP9024RO ", 2 }, /* ICP9024RO (Lancer) */
{ aac_rkt_init, "aacraid", "ICP ", "ICP9014RO ", 1 }, /* ICP9014RO (Lancer) */
{ aac_rkt_init, "aacraid", "ICP ", "ICP9047MA ", 1 }, /* ICP9047MA (Lancer) */
{ aac_rkt_init, "aacraid", "ICP ", "ICP9087MA ", 1 }, /* ICP9087MA (Lancer) */
{ aac_rkt_init, "aacraid", "ICP ", "ICP5445AU ", 1 }, /* ICP5445AU (Hurricane44) */
{ aac_rx_init, "aacraid", "ICP ", "ICP9085LI ", 1 }, /* ICP9085LI (Marauder-X) */
{ aac_rx_init, "aacraid", "ICP ", "ICP5085BR ", 1 }, /* ICP5085BR (Marauder-E) */
{ aac_rkt_init, "aacraid", "ICP ", "ICP9067MA ", 1 }, /* ICP9067MA (Intruder-6) */
{ NULL , "aacraid", "ADAPTEC ", "Themisto ", 0, AAC_QUIRK_SLAVE }, /* Jupiter Platform */
{ aac_rkt_init, "aacraid", "ADAPTEC ", "Callisto ", 2, AAC_QUIRK_MASTER }, /* Jupiter Platform */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2020SA ", 1 }, /* ASR-2020SA SATA PCI-X ZCR (Skyhawk) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2025SA ", 1 }, /* ASR-2025SA SATA SO-DIMM PCI-X ZCR (Terminator) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2410SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2410SA PCI SATA 4ch (Jaguar II) */
{ aac_rx_init, "aacraid", "DELL ", "CERC SR2 ", 1, AAC_QUIRK_17SG }, /* CERC SATA RAID 2 PCI SATA 6ch (DellCorsair) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2810SA SATA ", 1, AAC_QUIRK_17SG }, /* AAR-2810SA PCI SATA 8ch (Corsair-8) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "AAR-21610SA SATA", 1, AAC_QUIRK_17SG }, /* AAR-21610SA PCI SATA 16ch (Corsair-16) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2026ZCR ", 1 }, /* ESD SO-DIMM PCI-X SATA ZCR (Prowler) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "AAR-2610SA ", 1 }, /* SATA 6Ch (Bearcat) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-2240S ", 1 }, /* ASR-2240S (SabreExpress) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4005 ", 1 }, /* ASR-4005 */
{ aac_rx_init, "ServeRAID","IBM ", "ServeRAID 8i ", 1 }, /* IBM 8i (AvonPark) */
{ aac_rkt_init, "ServeRAID","IBM ", "ServeRAID 8k-l8 ", 1 }, /* IBM 8k/8k-l8 (Aurora) */
{ aac_rkt_init, "ServeRAID","IBM ", "ServeRAID 8k-l4 ", 1 }, /* IBM 8k/8k-l4 (Aurora Lite) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4000 ", 1 }, /* ASR-4000 (BlackBird & AvonPark) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4800SAS ", 1 }, /* ASR-4800SAS (Marauder-X) */
{ aac_rx_init, "aacraid", "ADAPTEC ", "ASR-4805SAS ", 1 }, /* ASR-4805SAS (Marauder-E) */
{ aac_rkt_init, "aacraid", "ADAPTEC ", "ASR-3800 ", 1 }, /* ASR-3800 (Hurricane44) */
{ aac_rx_init, "percraid", "DELL ", "PERC 320/DC ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/
{ aac_sa_init, "aacraid", "ADAPTEC ", "Adaptec 5400S ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
{ aac_sa_init, "aacraid", "ADAPTEC ", "AAC-364 ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
{ aac_sa_init, "percraid", "DELL ", "PERCRAID ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
{ aac_sa_init, "hpnraid", "HP ", "NetRAID ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
{ aac_rx_init, "aacraid", "DELL ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
{ aac_rx_init, "aacraid", "Legend ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
{ aac_rx_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Catch All */
{ aac_rkt_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Rocket Catch All */
{ aac_nark_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec NEMER/ARK Catch All */
{ aac_src_init, "aacraid", "ADAPTEC ", "RAID ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 6 (Tupelo) */
{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 7 (Denali) */
{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 8 */
};
/**
* aac_queuecommand - queue a SCSI command
* @shost: Scsi host to queue command on
* @cmd: SCSI command to queue
*
* Queues a command for execution by the associated Host Adapter.
*
* TODO: unify with aac_scsi_cmd().
*/
static int aac_queuecommand(struct Scsi_Host *shost,
struct scsi_cmnd *cmd)
{
aac_priv(cmd)->owner = AAC_OWNER_LOWLEVEL;
return aac_scsi_cmd(cmd) ? FAILED : 0;
}
/**
* aac_info - Returns the host adapter name
* @shost: Scsi host to report on
*
* Returns a static string describing the device in question
*/
static const char *aac_info(struct Scsi_Host *shost)
{
struct aac_dev *dev = (struct aac_dev *)shost->hostdata;
return aac_drivers[dev->cardtype].name;
}
/**
* aac_get_driver_ident
* @devtype: index into lookup table
*
* Returns a pointer to the entry in the driver lookup table.
*/
struct aac_driver_ident* aac_get_driver_ident(int devtype)
{
return &aac_drivers[devtype];
}
/**
* aac_biosparm - return BIOS parameters for disk
* @sdev: The scsi device corresponding to the disk
* @bdev: the block device corresponding to the disk
* @capacity: the sector capacity of the disk
* @geom: geometry block to fill in
*
* Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.
* The default disk geometry is 64 heads, 32 sectors, and the appropriate
* number of cylinders so as not to exceed drive capacity. In order for
* disks equal to or larger than 1 GB to be addressable by the BIOS
* without exceeding the BIOS limitation of 1024 cylinders, Extended
* Translation should be enabled. With Extended Translation enabled,
* drives between 1 GB inclusive and 2 GB exclusive are given a disk
* geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive
* are given a disk geometry of 255 heads and 63 sectors. However, if
* the BIOS detects that the Extended Translation setting does not match
* the geometry in the partition table, then the translation inferred
* from the partition table will be used by the BIOS, and a warning may
* be displayed.
*/
static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int *geom)
{
struct diskparm *param = (struct diskparm *)geom;
unsigned char *buf;
dprintk((KERN_DEBUG "aac_biosparm.\n"));
/*
* Assuming extended translation is enabled - #REVISIT#
*/
if (capacity >= 2 * 1024 * 1024) { /* 1 GB in 512 byte sectors */
if(capacity >= 4 * 1024 * 1024) { /* 2 GB in 512 byte sectors */
param->heads = 255;
param->sectors = 63;
} else {
param->heads = 128;
param->sectors = 32;
}
} else {
param->heads = 64;
param->sectors = 32;
}
param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
/*
* Read the first 1024 bytes from the disk device, if the boot
* sector partition table is valid, search for a partition table
* entry whose end_head matches one of the standard geometry
* translations ( 64/32, 128/32, 255/63 ).
*/
buf = scsi_bios_ptable(bdev);
if (!buf)
return 0;
if (*(__le16 *)(buf + 0x40) == cpu_to_le16(MSDOS_LABEL_MAGIC)) {
struct msdos_partition *first = (struct msdos_partition *)buf;
struct msdos_partition *entry = first;
int saved_cylinders = param->cylinders;
int num;
unsigned char end_head, end_sec;
for(num = 0; num < 4; num++) {
end_head = entry->end_head;
end_sec = entry->end_sector & 0x3f;
if(end_head == 63) {
param->heads = 64;
param->sectors = 32;
break;
} else if(end_head == 127) {
param->heads = 128;
param->sectors = 32;
break;
} else if(end_head == 254) {
param->heads = 255;
param->sectors = 63;
break;
}
entry++;
}
if (num == 4) {
end_head = first->end_head;
end_sec = first->end_sector & 0x3f;
}
param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
if (num < 4 && end_sec == param->sectors) {
if (param->cylinders != saved_cylinders) {
dprintk((KERN_DEBUG "Adopting geometry: heads=%d, sectors=%d from partition table %d.\n",
param->heads, param->sectors, num));
}
} else if (end_head > 0 || end_sec > 0) {
dprintk((KERN_DEBUG "Strange geometry: heads=%d, sectors=%d in partition table %d.\n",
end_head + 1, end_sec, num));
dprintk((KERN_DEBUG "Using geometry: heads=%d, sectors=%d.\n",
param->heads, param->sectors));
}
}
kfree(buf);
return 0;
}
/**
* aac_slave_configure - compute queue depths
* @sdev: SCSI device we are considering
*
* Selects queue depths for each target device based on the host adapter's
* total capacity and the queue depth supported by the target device.
* A queue depth of one automatically disables tagged queueing.
*/
static int aac_slave_configure(struct scsi_device *sdev)
{
struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
int chn, tid;
unsigned int depth = 0;
unsigned int set_timeout = 0;
int timeout = 0;
bool set_qd_dev_type = false;
u8 devtype = 0;
chn = aac_logical_to_phys(sdev_channel(sdev));
tid = sdev_id(sdev);
if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS && aac->sa_firmware) {
devtype = aac->hba_map[chn][tid].devtype;
if (devtype == AAC_DEVTYPE_NATIVE_RAW) {
depth = aac->hba_map[chn][tid].qd_limit;
set_timeout = 1;
goto common_config;
}
if (devtype == AAC_DEVTYPE_ARC_RAW) {
set_qd_dev_type = true;
set_timeout = 1;
goto common_config;
}
}
if (aac->jbod && (sdev->type == TYPE_DISK))
sdev->removable = 1;
if (sdev->type == TYPE_DISK
&& sdev_channel(sdev) != CONTAINER_CHANNEL
&& (!aac->jbod || sdev->inq_periph_qual)
&& (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
if (expose_physicals == 0)
return -ENXIO;
if (expose_physicals < 0)
sdev->no_uld_attach = 1;
}
if (sdev->tagged_supported
&& sdev->type == TYPE_DISK
&& (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
&& !sdev->no_uld_attach) {
struct scsi_device * dev;
struct Scsi_Host *host = sdev->host;
unsigned num_lsu = 0;
unsigned num_one = 0;
unsigned cid;
set_timeout = 1;
for (cid = 0; cid < aac->maximum_num_containers; ++cid)
if (aac->fsa_dev[cid].valid)
++num_lsu;
__shost_for_each_device(dev, host) {
if (dev->tagged_supported
&& dev->type == TYPE_DISK
&& (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
&& !dev->no_uld_attach) {
if ((sdev_channel(dev) != CONTAINER_CHANNEL)
|| !aac->fsa_dev[sdev_id(dev)].valid) {
++num_lsu;
}
} else {
++num_one;
}
}
if (num_lsu == 0)
++num_lsu;
depth = (host->can_queue - num_one) / num_lsu;
if (sdev_channel(sdev) != NATIVE_CHANNEL)
goto common_config;
set_qd_dev_type = true;
}
common_config:
/*
* Check if SATA drive
*/
if (set_qd_dev_type) {
if (strncmp(sdev->vendor, "ATA", 3) == 0)
depth = 32;
else
depth = 64;
}
/*
* Firmware has an individual device recovery time typically
* of 35 seconds, give us a margin. Thor devices can take longer in
* error recovery, hence different value.
*/
if (set_timeout) {
timeout = aac->sa_firmware ? AAC_SA_TIMEOUT : AAC_ARC_TIMEOUT;
blk_queue_rq_timeout(sdev->request_queue, timeout * HZ);
}
if (depth > 256)
depth = 256;
else if (depth < 1)
depth = 1;
scsi_change_queue_depth(sdev, depth);
sdev->tagged_supported = 1;
return 0;
}
static void aac_map_queues(struct Scsi_Host *shost)
{
struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT],
aac->pdev, 0);
aac->use_map_queue = true;
}
/**
* aac_change_queue_depth - alter queue depths
* @sdev: SCSI device we are considering
* @depth: desired queue depth
*
* Alters queue depths for target device based on the host adapter's
* total capacity and the queue depth supported by the target device.
*/
static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
{
struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
int chn, tid, is_native_device = 0;
chn = aac_logical_to_phys(sdev_channel(sdev));
tid = sdev_id(sdev);
if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS &&
aac->hba_map[chn][tid].devtype == AAC_DEVTYPE_NATIVE_RAW)
is_native_device = 1;
if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
(sdev_channel(sdev) == CONTAINER_CHANNEL)) {
struct scsi_device * dev;
struct Scsi_Host *host = sdev->host;
unsigned num = 0;
__shost_for_each_device(dev, host) {
if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
(sdev_channel(dev) == CONTAINER_CHANNEL))
++num;
++num;
}
if (num >= host->can_queue)
num = host->can_queue - 1;
if (depth > (host->can_queue - num))
depth = host->can_queue - num;
if (depth > 256)
depth = 256;
else if (depth < 2)
depth = 2;
return scsi_change_queue_depth(sdev, depth);
} else if (is_native_device) {
scsi_change_queue_depth(sdev, aac->hba_map[chn][tid].qd_limit);
} else {
scsi_change_queue_depth(sdev, 1);
}
return sdev->queue_depth;
}
static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
if (sdev_channel(sdev) != CONTAINER_CHANNEL)
return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
? "Hidden\n" :
((aac->jbod && (sdev->type == TYPE_DISK)) ? "JBOD\n" : ""));
return snprintf(buf, PAGE_SIZE, "%s\n",
get_container_type(aac->fsa_dev[sdev_id(sdev)].type));
}
static struct device_attribute aac_raid_level_attr = {
.attr = {
.name = "level",
.mode = S_IRUGO,
},
.show = aac_show_raid_level
};
static ssize_t aac_show_unique_id(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct aac_dev *aac = (struct aac_dev *)(sdev->host->hostdata);
unsigned char sn[16];
memset(sn, 0, sizeof(sn));
if (sdev_channel(sdev) == CONTAINER_CHANNEL)
memcpy(sn, aac->fsa_dev[sdev_id(sdev)].identifier, sizeof(sn));
return snprintf(buf, 16 * 2 + 2,
"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X\n",
sn[0], sn[1], sn[2], sn[3],
sn[4], sn[5], sn[6], sn[7],
sn[8], sn[9], sn[10], sn[11],
sn[12], sn[13], sn[14], sn[15]);
}
static struct device_attribute aac_unique_id_attr = {
.attr = {
.name = "unique_id",
.mode = 0444,
},
.show = aac_show_unique_id
};
static struct attribute *aac_dev_attrs[] = {
&aac_raid_level_attr.attr,
&aac_unique_id_attr.attr,
NULL,
};
ATTRIBUTE_GROUPS(aac_dev);
static int aac_ioctl(struct scsi_device *sdev, unsigned int cmd,
void __user *arg)
{
int retval;
struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
retval = aac_adapter_check_health(dev);
if (retval)
return -EBUSY;
return aac_do_ioctl(dev, cmd, arg);
}
struct fib_count_data {
int mlcnt;
int llcnt;
int ehcnt;
int fwcnt;
int krlcnt;
};
static bool fib_count_iter(struct scsi_cmnd *scmnd, void *data)
{
struct fib_count_data *fib_count = data;
switch (aac_priv(scmnd)->owner) {
case AAC_OWNER_FIRMWARE:
fib_count->fwcnt++;
break;
case AAC_OWNER_ERROR_HANDLER:
fib_count->ehcnt++;
break;
case AAC_OWNER_LOWLEVEL:
fib_count->llcnt++;
break;
case AAC_OWNER_MIDLEVEL:
fib_count->mlcnt++;
break;
default:
fib_count->krlcnt++;
break;
}
return true;
}
/* Called during SCSI EH, so we don't need to block requests */
static int get_num_of_incomplete_fibs(struct aac_dev *aac)
{
struct Scsi_Host *shost = aac->scsi_host_ptr;
struct device *ctrl_dev;
struct fib_count_data fcnt = { };
scsi_host_busy_iter(shost, fib_count_iter, &fcnt);
ctrl_dev = &aac->pdev->dev;
dev_info(ctrl_dev, "outstanding cmd: midlevel-%d\n", fcnt.mlcnt);
dev_info(ctrl_dev, "outstanding cmd: lowlevel-%d\n", fcnt.llcnt);
dev_info(ctrl_dev, "outstanding cmd: error handler-%d\n", fcnt.ehcnt);
dev_info(ctrl_dev, "outstanding cmd: firmware-%d\n", fcnt.fwcnt);
dev_info(ctrl_dev, "outstanding cmd: kernel-%d\n", fcnt.krlcnt);
return fcnt.mlcnt + fcnt.llcnt + fcnt.ehcnt + fcnt.fwcnt;
}
static int aac_eh_abort(struct scsi_cmnd* cmd)
{
struct aac_cmd_priv *cmd_priv = aac_priv(cmd);
struct scsi_device * dev = cmd->device;
struct Scsi_Host * host = dev->host;
struct aac_dev * aac = (struct aac_dev *)host->hostdata;
int count, found;
u32 bus, cid;
int ret = FAILED;
if (aac_adapter_check_health(aac))
return ret;
bus = aac_logical_to_phys(scmd_channel(cmd));
cid = scmd_id(cmd);
if (aac->hba_map[bus][cid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
struct fib *fib;
struct aac_hba_tm_req *tmf;
int status;
u64 address;
pr_err("%s: Host adapter abort request (%d,%d,%d,%d)\n",
AAC_DRIVERNAME,
host->host_no, sdev_channel(dev), sdev_id(dev), (int)dev->lun);
found = 0;
for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
fib = &aac->fibs[count];
if (*(u8 *)fib->hw_fib_va != 0 &&
(fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) &&
(fib->callback_data == cmd)) {
found = 1;
break;
}
}
if (!found)
return ret;
/* start a HBA_TMF_ABORT_TASK TMF request */
fib = aac_fib_alloc(aac);
if (!fib)
return ret;
tmf = (struct aac_hba_tm_req *)fib->hw_fib_va;
memset(tmf, 0, sizeof(*tmf));
tmf->tmf = HBA_TMF_ABORT_TASK;
tmf->it_nexus = aac->hba_map[bus][cid].rmw_nexus;
tmf->lun[1] = cmd->device->lun;
address = (u64)fib->hw_error_pa;
tmf->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
tmf->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
tmf->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
fib->hbacmd_size = sizeof(*tmf);
cmd_priv->sent_command = 0;
status = aac_hba_send(HBA_IU_TYPE_SCSI_TM_REQ, fib,
(fib_callback) aac_hba_callback,
(void *) cmd);
if (status != -EINPROGRESS) {
aac_fib_complete(fib);
aac_fib_free(fib);
return ret;
}
/* Wait up to 15 secs for completion */
for (count = 0; count < 15; ++count) {
if (cmd_priv->sent_command) {
ret = SUCCESS;
break;
}
msleep(1000);
}
if (ret != SUCCESS)
pr_err("%s: Host adapter abort request timed out\n",
AAC_DRIVERNAME);
} else {
pr_err(
"%s: Host adapter abort request.\n"
"%s: Outstanding commands on (%d,%d,%d,%d):\n",
AAC_DRIVERNAME, AAC_DRIVERNAME,
host->host_no, sdev_channel(dev), sdev_id(dev),
(int)dev->lun);
switch (cmd->cmnd[0]) {
case SERVICE_ACTION_IN_16:
if (!(aac->raw_io_interface) ||
!(aac->raw_io_64) ||
((cmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
break;
fallthrough;
case INQUIRY:
case READ_CAPACITY:
/*
* Mark associated FIB to not complete,
* eh handler does this
*/
for (count = 0;
count < (host->can_queue + AAC_NUM_MGT_FIB);
++count) {
struct fib *fib = &aac->fibs[count];
if (fib->hw_fib_va->header.XferState &&
(fib->flags & FIB_CONTEXT_FLAG) &&
(fib->callback_data == cmd)) {
fib->flags |=
FIB_CONTEXT_FLAG_TIMED_OUT;
cmd_priv->owner =
AAC_OWNER_ERROR_HANDLER;
ret = SUCCESS;
}
}
break;
case TEST_UNIT_READY:
/*
* Mark associated FIB to not complete,
* eh handler does this
*/
for (count = 0;
count < (host->can_queue + AAC_NUM_MGT_FIB);
++count) {
struct scsi_cmnd *command;
struct fib *fib = &aac->fibs[count];
command = fib->callback_data;
if ((fib->hw_fib_va->header.XferState &
cpu_to_le32
(Async | NoResponseExpected)) &&
(fib->flags & FIB_CONTEXT_FLAG) &&
((command)) &&
(command->device == cmd->device)) {
fib->flags |=
FIB_CONTEXT_FLAG_TIMED_OUT;
aac_priv(command)->owner =
AAC_OWNER_ERROR_HANDLER;
if (command == cmd)
ret = SUCCESS;
}
}
break;
}
}
return ret;
}
static u8 aac_eh_tmf_lun_reset_fib(struct aac_hba_map_info *info,
struct fib *fib, u64 tmf_lun)
{
struct aac_hba_tm_req *tmf;
u64 address;
/* start a HBA_TMF_LUN_RESET TMF request */
tmf = (struct aac_hba_tm_req *)fib->hw_fib_va;
memset(tmf, 0, sizeof(*tmf));
tmf->tmf = HBA_TMF_LUN_RESET;
tmf->it_nexus = info->rmw_nexus;
int_to_scsilun(tmf_lun, (struct scsi_lun *)tmf->lun);
address = (u64)fib->hw_error_pa;
tmf->error_ptr_hi = cpu_to_le32
((u32)(address >> 32));
tmf->error_ptr_lo = cpu_to_le32
((u32)(address & 0xffffffff));
tmf->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
fib->hbacmd_size = sizeof(*tmf);
return HBA_IU_TYPE_SCSI_TM_REQ;
}
static u8 aac_eh_tmf_hard_reset_fib(struct aac_hba_map_info *info,
struct fib *fib)
{
struct aac_hba_reset_req *rst;
u64 address;
/* already tried, start a hard reset now */
rst = (struct aac_hba_reset_req *)fib->hw_fib_va;
memset(rst, 0, sizeof(*rst));
rst->it_nexus = info->rmw_nexus;
address = (u64)fib->hw_error_pa;
rst->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
rst->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
rst->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
fib->hbacmd_size = sizeof(*rst);
return HBA_IU_TYPE_SATA_REQ;
}
static void aac_tmf_callback(void *context, struct fib *fibptr)
{
struct aac_hba_resp *err =
&((struct aac_native_hba *)fibptr->hw_fib_va)->resp.err;
struct aac_hba_map_info *info = context;
int res;
switch (err->service_response) {
case HBA_RESP_SVCRES_TMF_REJECTED:
res = -1;
break;
case HBA_RESP_SVCRES_TMF_LUN_INVALID:
res = 0;
break;
case HBA_RESP_SVCRES_TMF_COMPLETE:
case HBA_RESP_SVCRES_TMF_SUCCEEDED:
res = 0;
break;
default:
res = -2;
break;
}
aac_fib_complete(fibptr);
info->reset_state = res;
}
/*
* aac_eh_dev_reset - Device reset command handling
* @scsi_cmd: SCSI command block causing the reset
*
*/
static int aac_eh_dev_reset(struct scsi_cmnd *cmd)
{
struct scsi_device * dev = cmd->device;
struct Scsi_Host * host = dev->host;
struct aac_dev * aac = (struct aac_dev *)host->hostdata;
struct aac_hba_map_info *info;
int count;
u32 bus, cid;
struct fib *fib;
int ret = FAILED;
int status;
u8 command;
bus = aac_logical_to_phys(scmd_channel(cmd));
cid = scmd_id(cmd);
if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
return FAILED;
info = &aac->hba_map[bus][cid];
if (!(info->devtype == AAC_DEVTYPE_NATIVE_RAW &&
!(info->reset_state > 0)))
return FAILED;
pr_err("%s: Host device reset request. SCSI hang ?\n",
AAC_DRIVERNAME);
fib = aac_fib_alloc(aac);
if (!fib)
return ret;
/* start a HBA_TMF_LUN_RESET TMF request */
command = aac_eh_tmf_lun_reset_fib(info, fib, dev->lun);
info->reset_state = 1;
status = aac_hba_send(command, fib,
(fib_callback) aac_tmf_callback,
(void *) info);
if (status != -EINPROGRESS) {
info->reset_state = 0;
aac_fib_complete(fib);
aac_fib_free(fib);
return ret;
}
/* Wait up to 15 seconds for completion */
for (count = 0; count < 15; ++count) {
if (info->reset_state == 0) {
ret = info->reset_state == 0 ? SUCCESS : FAILED;
break;
}
msleep(1000);
}
return ret;
}
/*
* aac_eh_target_reset - Target reset command handling
* @scsi_cmd: SCSI command block causing the reset
*
*/
static int aac_eh_target_reset(struct scsi_cmnd *cmd)
{
struct scsi_device * dev = cmd->device;
struct Scsi_Host * host = dev->host;
struct aac_dev * aac = (struct aac_dev *)host->hostdata;
struct aac_hba_map_info *info;
int count;
u32 bus, cid;
int ret = FAILED;
struct fib *fib;
int status;
u8 command;
bus = aac_logical_to_phys(scmd_channel(cmd));
cid = scmd_id(cmd);
if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
return FAILED;
info = &aac->hba_map[bus][cid];
if (!(info->devtype == AAC_DEVTYPE_NATIVE_RAW &&
!(info->reset_state > 0)))
return FAILED;
pr_err("%s: Host target reset request. SCSI hang ?\n",
AAC_DRIVERNAME);
fib = aac_fib_alloc(aac);
if (!fib)
return ret;
/* already tried, start a hard reset now */
command = aac_eh_tmf_hard_reset_fib(info, fib);
info->reset_state = 2;
status = aac_hba_send(command, fib,
(fib_callback) aac_tmf_callback,
(void *) info);
if (status != -EINPROGRESS) {
info->reset_state = 0;
aac_fib_complete(fib);
aac_fib_free(fib);
return ret;
}
/* Wait up to 15 seconds for completion */
for (count = 0; count < 15; ++count) {
if (info->reset_state <= 0) {
ret = info->reset_state == 0 ? SUCCESS : FAILED;
break;
}
msleep(1000);
}
return ret;
}
/*
* aac_eh_bus_reset - Bus reset command handling
* @scsi_cmd: SCSI command block causing the reset
*
*/
static int aac_eh_bus_reset(struct scsi_cmnd* cmd)
{
struct scsi_device * dev = cmd->device;
struct Scsi_Host * host = dev->host;
struct aac_dev * aac = (struct aac_dev *)host->hostdata;
int count;
u32 cmd_bus;
int status = 0;
cmd_bus = aac_logical_to_phys(scmd_channel(cmd));
/* Mark the assoc. FIB to not complete, eh handler does this */
for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
struct fib *fib = &aac->fibs[count];
if (fib->hw_fib_va->header.XferState &&
(fib->flags & FIB_CONTEXT_FLAG) &&
(fib->flags & FIB_CONTEXT_FLAG_SCSI_CMD)) {
struct aac_hba_map_info *info;
u32 bus, cid;
cmd = (struct scsi_cmnd *)fib->callback_data;
bus = aac_logical_to_phys(scmd_channel(cmd));
if (bus != cmd_bus)
continue;
cid = scmd_id(cmd);
info = &aac->hba_map[bus][cid];
if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS ||
info->devtype != AAC_DEVTYPE_NATIVE_RAW) {
fib->flags |= FIB_CONTEXT_FLAG_EH_RESET;
aac_priv(cmd)->owner = AAC_OWNER_ERROR_HANDLER;
}
}
}
pr_err("%s: Host bus reset request. SCSI hang ?\n", AAC_DRIVERNAME);
/*
* Check the health of the controller
*/
status = aac_adapter_check_health(aac);
if (status)
dev_err(&aac->pdev->dev, "Adapter health - %d\n", status);
count = get_num_of_incomplete_fibs(aac);
return (count == 0) ? SUCCESS : FAILED;
}
/*
* aac_eh_host_reset - Host reset command handling
* @scsi_cmd: SCSI command block causing the reset
*
*/
static int aac_eh_host_reset(struct scsi_cmnd *cmd)
{
struct scsi_device * dev = cmd->device;
struct Scsi_Host * host = dev->host;
struct aac_dev * aac = (struct aac_dev *)host->hostdata;
int ret = FAILED;
__le32 supported_options2 = 0;
bool is_mu_reset;
bool is_ignore_reset;
bool is_doorbell_reset;
/*
* Check if reset is supported by the firmware
*/
supported_options2 = aac->supplement_adapter_info.supported_options2;
is_mu_reset = supported_options2 & AAC_OPTION_MU_RESET;
is_doorbell_reset = supported_options2 & AAC_OPTION_DOORBELL_RESET;
is_ignore_reset = supported_options2 & AAC_OPTION_IGNORE_RESET;
/*
* This adapter needs a blind reset, only do so for
* Adapters that support a register, instead of a commanded,
* reset.
*/
if ((is_mu_reset || is_doorbell_reset)
&& aac_check_reset
&& (aac_check_reset != -1 || !is_ignore_reset)) {
/* Bypass wait for command quiesce */
if (aac_reset_adapter(aac, 2, IOP_HWSOFT_RESET) == 0)
ret = SUCCESS;
}
/*
* Reset EH state
*/
if (ret == SUCCESS) {
int bus, cid;
struct aac_hba_map_info *info;
for (bus = 0; bus < AAC_MAX_BUSES; bus++) {
for (cid = 0; cid < AAC_MAX_TARGETS; cid++) {
info = &aac->hba_map[bus][cid];
if (info->devtype == AAC_DEVTYPE_NATIVE_RAW)
info->reset_state = 0;
}
}
}
return ret;
}
/**
* aac_cfg_open - open a configuration file
* @inode: inode being opened
* @file: file handle attached
*
* Called when the configuration device is opened. Does the needed
* set up on the handle and then returns
*
* Bugs: This needs extending to check a given adapter is present
* so we can support hot plugging, and to ref count adapters.
*/
static int aac_cfg_open(struct inode *inode, struct file *file)
{
struct aac_dev *aac;
unsigned minor_number = iminor(inode);
int err = -ENODEV;
mutex_lock(&aac_mutex); /* BKL pushdown: nothing else protects this list */
list_for_each_entry(aac, &aac_devices, entry) {
if (aac->id == minor_number) {
file->private_data = aac;
err = 0;
break;
}
}
mutex_unlock(&aac_mutex);
return err;
}
/**
* aac_cfg_ioctl - AAC configuration request
* @file: file handle
* @cmd: ioctl command code
* @arg: argument
*
* Handles a configuration ioctl. Currently this involves wrapping it
* up and feeding it into the nasty windowsalike glue layer.
*
* Bugs: Needs locking against parallel ioctls lower down
* Bugs: Needs to handle hot plugging
*/
static long aac_cfg_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct aac_dev *aac = (struct aac_dev *)file->private_data;
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
return aac_do_ioctl(aac, cmd, (void __user *)arg);
}
static ssize_t aac_show_model(struct device *device,
struct device_attribute *attr, char *buf)
{
struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
int len;
if (dev->supplement_adapter_info.adapter_type_text[0]) {
char *cp = dev->supplement_adapter_info.adapter_type_text;
while (*cp && *cp != ' ')
++cp;
while (*cp == ' ')
++cp;
len = snprintf(buf, PAGE_SIZE, "%s\n", cp);
} else
len = snprintf(buf, PAGE_SIZE, "%s\n",
aac_drivers[dev->cardtype].model);
return len;
}
static ssize_t aac_show_vendor(struct device *device,
struct device_attribute *attr, char *buf)
{
struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
struct aac_supplement_adapter_info *sup_adap_info;
int len;
sup_adap_info = &dev->supplement_adapter_info;
if (sup_adap_info->adapter_type_text[0]) {
char *cp = sup_adap_info->adapter_type_text;
while (*cp && *cp != ' ')
++cp;
len = snprintf(buf, PAGE_SIZE, "%.*s\n",
(int)(cp - (char *)sup_adap_info->adapter_type_text),
sup_adap_info->adapter_type_text);
} else
len = snprintf(buf, PAGE_SIZE, "%s\n",
aac_drivers[dev->cardtype].vname);
return len;
}
static ssize_t aac_show_flags(struct device *cdev,
struct device_attribute *attr, char *buf)
{
int len = 0;
struct aac_dev *dev = (struct aac_dev*)class_to_shost(cdev)->hostdata;
if (nblank(dprintk(x)))
len = snprintf(buf, PAGE_SIZE, "dprintk\n");
#ifdef AAC_DETAILED_STATUS_INFO
len += scnprintf(buf + len, PAGE_SIZE - len,
"AAC_DETAILED_STATUS_INFO\n");
#endif
if (dev->raw_io_interface && dev->raw_io_64)
len += scnprintf(buf + len, PAGE_SIZE - len,
"SAI_READ_CAPACITY_16\n");
if (dev->jbod)
len += scnprintf(buf + len, PAGE_SIZE - len,
"SUPPORTED_JBOD\n");
if (dev->supplement_adapter_info.supported_options2 &
AAC_OPTION_POWER_MANAGEMENT)
len += scnprintf(buf + len, PAGE_SIZE - len,
"SUPPORTED_POWER_MANAGEMENT\n");
if (dev->msi)
len += scnprintf(buf + len, PAGE_SIZE - len, "PCI_HAS_MSI\n");
return len;
}
static ssize_t aac_show_kernel_version(struct device *device,
struct device_attribute *attr,
char *buf)
{
struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
int len, tmp;
tmp = le32_to_cpu(dev->adapter_info.kernelrev);
len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
le32_to_cpu(dev->adapter_info.kernelbuild));
return len;
}
static ssize_t aac_show_monitor_version(struct device *device,
struct device_attribute *attr,
char *buf)
{
struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
int len, tmp;
tmp = le32_to_cpu(dev->adapter_info.monitorrev);
len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
le32_to_cpu(dev->adapter_info.monitorbuild));
return len;
}
static ssize_t aac_show_bios_version(struct device *device,
struct device_attribute *attr,
char *buf)
{
struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
int len, tmp;
tmp = le32_to_cpu(dev->adapter_info.biosrev);
len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
le32_to_cpu(dev->adapter_info.biosbuild));
return len;
}
static ssize_t aac_show_driver_version(struct device *device,
struct device_attribute *attr,
char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", aac_driver_version);
}
static ssize_t aac_show_serial_number(struct device *device,
struct device_attribute *attr, char *buf)
{
struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
int len = 0;
if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
len = snprintf(buf, 16, "%06X\n",
le32_to_cpu(dev->adapter_info.serial[0]));
if (len &&
!memcmp(&dev->supplement_adapter_info.mfg_pcba_serial_no[
sizeof(dev->supplement_adapter_info.mfg_pcba_serial_no)-len],
buf, len-1))
len = snprintf(buf, 16, "%.*s\n",
(int)sizeof(dev->supplement_adapter_info.mfg_pcba_serial_no),
dev->supplement_adapter_info.mfg_pcba_serial_no);
return min(len, 16);
}
static ssize_t aac_show_max_channel(struct device *device,
struct device_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n",
class_to_shost(device)->max_channel);
}
static ssize_t aac_show_max_id(struct device *device,
struct device_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n",
class_to_shost(device)->max_id);
}
static ssize_t aac_store_reset_adapter(struct device *device,
struct device_attribute *attr,
const char *buf, size_t count)
{
int retval = -EACCES;
if (!capable(CAP_SYS_ADMIN))
return retval;
retval = aac_reset_adapter(shost_priv(class_to_shost(device)),
buf[0] == '!', IOP_HWSOFT_RESET);
if (retval >= 0)
retval = count;
return retval;
}
static ssize_t aac_show_reset_adapter(struct device *device,
struct device_attribute *attr,
char *buf)
{
struct aac_dev *dev = (struct aac_dev*)class_to_shost(device)->hostdata;
int len, tmp;
tmp = aac_adapter_check_health(dev);
if ((tmp == 0) && dev->in_reset)
tmp = -EBUSY;
len = snprintf(buf, PAGE_SIZE, "0x%x\n", tmp);
return len;
}
static struct device_attribute aac_model = {
.attr = {
.name = "model",
.mode = S_IRUGO,
},
.show = aac_show_model,
};
static struct device_attribute aac_vendor = {
.attr = {
.name = "vendor",
.mode = S_IRUGO,
},
.show = aac_show_vendor,
};
static struct device_attribute aac_flags = {
.attr = {
.name = "flags",
.mode = S_IRUGO,
},
.show = aac_show_flags,
};
static struct device_attribute aac_kernel_version = {
.attr = {
.name = "hba_kernel_version",
.mode = S_IRUGO,
},
.show = aac_show_kernel_version,
};
static struct device_attribute aac_monitor_version = {
.attr = {
.name = "hba_monitor_version",
.mode = S_IRUGO,
},
.show = aac_show_monitor_version,
};
static struct device_attribute aac_bios_version = {
.attr = {
.name = "hba_bios_version",
.mode = S_IRUGO,
},
.show = aac_show_bios_version,
};
static struct device_attribute aac_lld_version = {
.attr = {
.name = "driver_version",
.mode = 0444,
},
.show = aac_show_driver_version,
};
static struct device_attribute aac_serial_number = {
.attr = {
.name = "serial_number",
.mode = S_IRUGO,
},
.show = aac_show_serial_number,
};
static struct device_attribute aac_max_channel = {
.attr = {
.name = "max_channel",
.mode = S_IRUGO,
},
.show = aac_show_max_channel,
};
static struct device_attribute aac_max_id = {
.attr = {
.name = "max_id",
.mode = S_IRUGO,
},
.show = aac_show_max_id,
};
static struct device_attribute aac_reset = {
.attr = {
.name = "reset_host",
.mode = S_IWUSR|S_IRUGO,
},
.store = aac_store_reset_adapter,
.show = aac_show_reset_adapter,
};
static struct attribute *aac_host_attrs[] = {
&aac_model.attr,
&aac_vendor.attr,
&aac_flags.attr,
&aac_kernel_version.attr,
&aac_monitor_version.attr,
&aac_bios_version.attr,
&aac_lld_version.attr,
&aac_serial_number.attr,
&aac_max_channel.attr,
&aac_max_id.attr,
&aac_reset.attr,
NULL
};
ATTRIBUTE_GROUPS(aac_host);
ssize_t aac_get_serial_number(struct device *device, char *buf)
{
return aac_show_serial_number(device, &aac_serial_number, buf);
}
static const struct file_operations aac_cfg_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = aac_cfg_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = aac_cfg_ioctl,
#endif
.open = aac_cfg_open,
.llseek = noop_llseek,
};
static const struct scsi_host_template aac_driver_template = {
.module = THIS_MODULE,
.name = "AAC",
.proc_name = AAC_DRIVERNAME,
.info = aac_info,
.ioctl = aac_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = aac_ioctl,
#endif
.queuecommand = aac_queuecommand,
.bios_param = aac_biosparm,
.shost_groups = aac_host_groups,
.slave_configure = aac_slave_configure,
.map_queues = aac_map_queues,
.change_queue_depth = aac_change_queue_depth,
.sdev_groups = aac_dev_groups,
.eh_abort_handler = aac_eh_abort,
.eh_device_reset_handler = aac_eh_dev_reset,
.eh_target_reset_handler = aac_eh_target_reset,
.eh_bus_reset_handler = aac_eh_bus_reset,
.eh_host_reset_handler = aac_eh_host_reset,
.can_queue = AAC_NUM_IO_FIB,
.this_id = MAXIMUM_NUM_CONTAINERS,
.sg_tablesize = 16,
.max_sectors = 128,
#if (AAC_NUM_IO_FIB > 256)
.cmd_per_lun = 256,
#else
.cmd_per_lun = AAC_NUM_IO_FIB,
#endif
.emulated = 1,
.no_write_same = 1,
.cmd_size = sizeof(struct aac_cmd_priv),
};
static void __aac_shutdown(struct aac_dev * aac)
{
int i;
mutex_lock(&aac->ioctl_mutex);
aac->adapter_shutdown = 1;
mutex_unlock(&aac->ioctl_mutex);
if (aac->aif_thread) {
int i;
/* Clear out events first */
for (i = 0; i < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++) {
struct fib *fib = &aac->fibs[i];
if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
(fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected)))
complete(&fib->event_wait);
}
kthread_stop(aac->thread);
aac->thread = NULL;
}
aac_send_shutdown(aac);
aac_adapter_disable_int(aac);
if (aac_is_src(aac)) {
if (aac->max_msix > 1) {
for (i = 0; i < aac->max_msix; i++) {
free_irq(pci_irq_vector(aac->pdev, i),
&(aac->aac_msix[i]));
}
} else {
free_irq(aac->pdev->irq,
&(aac->aac_msix[0]));
}
} else {
free_irq(aac->pdev->irq, aac);
}
if (aac->msi)
pci_disable_msi(aac->pdev);
else if (aac->max_msix > 1)
pci_disable_msix(aac->pdev);
}
static void aac_init_char(void)
{
aac_cfg_major = register_chrdev(0, "aac", &aac_cfg_fops);
if (aac_cfg_major < 0) {
pr_err("aacraid: unable to register \"aac\" device.\n");
}
}
void aac_reinit_aif(struct aac_dev *aac, unsigned int index)
{
/*
* Firmware may send a AIF messages very early and the Driver may have
* ignored as it is not fully ready to process the messages. Send
* AIF to firmware so that if there are any unprocessed events they
* can be processed now.
*/
if (aac_drivers[index].quirks & AAC_QUIRK_SRC)
aac_intr_normal(aac, 0, 2, 0, NULL);
}
static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
unsigned index = id->driver_data;
struct Scsi_Host *shost;
struct aac_dev *aac;
struct list_head *insert = &aac_devices;
int error;
int unique_id = 0;
u64 dmamask;
int mask_bits = 0;
extern int aac_sync_mode;
/*
* Only series 7 needs freset.
*/
if (pdev->device == PMC_DEVICE_S7)
pdev->needs_freset = 1;
list_for_each_entry(aac, &aac_devices, entry) {
if (aac->id > unique_id)
break;
insert = &aac->entry;
unique_id++;
}
pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
PCIE_LINK_STATE_CLKPM);
error = pci_enable_device(pdev);
if (error)
goto out;
if (!(aac_drivers[index].quirks & AAC_QUIRK_SRC)) {
error = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (error) {
dev_err(&pdev->dev, "PCI 32 BIT dma mask set failed");
goto out_disable_pdev;
}
}
/*
* If the quirk31 bit is set, the adapter needs adapter
* to driver communication memory to be allocated below 2gig
*/
if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) {
dmamask = DMA_BIT_MASK(31);
mask_bits = 31;
} else {
dmamask = DMA_BIT_MASK(32);
mask_bits = 32;
}
error = dma_set_coherent_mask(&pdev->dev, dmamask);
if (error) {
dev_err(&pdev->dev, "PCI %d B consistent dma mask set failed\n"
, mask_bits);
goto out_disable_pdev;
}
pci_set_master(pdev);
shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
if (!shost) {
error = -ENOMEM;
goto out_disable_pdev;
}
shost->irq = pdev->irq;
shost->unique_id = unique_id;
shost->max_cmd_len = 16;
if (aac_cfg_major == AAC_CHARDEV_NEEDS_REINIT)
aac_init_char();
aac = (struct aac_dev *)shost->hostdata;
aac->base_start = pci_resource_start(pdev, 0);
aac->scsi_host_ptr = shost;
aac->pdev = pdev;
aac->name = aac_driver_template.name;
aac->id = shost->unique_id;
aac->cardtype = index;
INIT_LIST_HEAD(&aac->entry);
if (aac_reset_devices || reset_devices)
aac->init_reset = true;
aac->fibs = kcalloc(shost->can_queue + AAC_NUM_MGT_FIB,
sizeof(struct fib),
GFP_KERNEL);
if (!aac->fibs) {
error = -ENOMEM;
goto out_free_host;
}
spin_lock_init(&aac->fib_lock);
mutex_init(&aac->ioctl_mutex);
mutex_init(&aac->scan_mutex);
INIT_DELAYED_WORK(&aac->safw_rescan_work, aac_safw_rescan_worker);
INIT_DELAYED_WORK(&aac->src_reinit_aif_worker,
aac_src_reinit_aif_worker);
/*
* Map in the registers from the adapter.
*/
aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
if ((*aac_drivers[index].init)(aac)) {
error = -ENODEV;
goto out_unmap;
}
if (aac->sync_mode) {
if (aac_sync_mode)
printk(KERN_INFO "%s%d: Sync. mode enforced "
"by driver parameter. This will cause "
"a significant performance decrease!\n",
aac->name,
aac->id);
else
printk(KERN_INFO "%s%d: Async. mode not supported "
"by current driver, sync. mode enforced."
"\nPlease update driver to get full performance.\n",
aac->name,
aac->id);
}
/*
* Start any kernel threads needed
*/
aac->thread = kthread_run(aac_command_thread, aac, AAC_DRIVERNAME);
if (IS_ERR(aac->thread)) {
printk(KERN_ERR "aacraid: Unable to create command thread.\n");
error = PTR_ERR(aac->thread);
aac->thread = NULL;
goto out_deinit;
}
aac->maximum_num_channels = aac_drivers[index].channels;
error = aac_get_adapter_info(aac);
if (error < 0)
goto out_deinit;
/*
* Lets override negotiations and drop the maximum SG limit to 34
*/
if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
(shost->sg_tablesize > 34)) {
shost->sg_tablesize = 34;
shost->max_sectors = (shost->sg_tablesize * 8) + 112;
}
if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
(shost->sg_tablesize > 17)) {
shost->sg_tablesize = 17;
shost->max_sectors = (shost->sg_tablesize * 8) + 112;
}
if (aac->adapter_info.options & AAC_OPT_NEW_COMM)
shost->max_segment_size = shost->max_sectors << 9;
else
shost->max_segment_size = 65536;
/*
* Firmware printf works only with older firmware.
*/
if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
aac->printf_enabled = 1;
else
aac->printf_enabled = 0;
/*
* max channel will be the physical channels plus 1 virtual channel
* all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
* physical channels are address by their actual physical number+1
*/
if (aac->nondasd_support || expose_physicals || aac->jbod)
shost->max_channel = aac->maximum_num_channels;
else
shost->max_channel = 0;
aac_get_config_status(aac, 0);
aac_get_containers(aac);
list_add(&aac->entry, insert);
shost->max_id = aac->maximum_num_containers;
if (shost->max_id < aac->maximum_num_physicals)
shost->max_id = aac->maximum_num_physicals;
if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
shost->max_id = MAXIMUM_NUM_CONTAINERS;
else
shost->this_id = shost->max_id;
if (!aac->sa_firmware && aac_drivers[index].quirks & AAC_QUIRK_SRC)
aac_intr_normal(aac, 0, 2, 0, NULL);
/*
* dmb - we may need to move the setting of these parms somewhere else once
* we get a fib that can report the actual numbers
*/
shost->max_lun = AAC_MAX_LUN;
pci_set_drvdata(pdev, shost);
shost->nr_hw_queues = aac->max_msix;
shost->host_tagset = 1;
error = scsi_add_host(shost, &pdev->dev);
if (error)
goto out_deinit;
aac_scan_host(aac);
pci_save_state(pdev);
return 0;
out_deinit:
__aac_shutdown(aac);
out_unmap:
aac_fib_map_free(aac);
if (aac->comm_addr)
dma_free_coherent(&aac->pdev->dev, aac->comm_size,
aac->comm_addr, aac->comm_phys);
kfree(aac->queues);
aac_adapter_ioremap(aac, 0);
kfree(aac->fibs);
kfree(aac->fsa_dev);
out_free_host:
scsi_host_put(shost);
out_disable_pdev:
pci_disable_device(pdev);
out:
return error;
}
static void aac_release_resources(struct aac_dev *aac)
{
aac_adapter_disable_int(aac);
aac_free_irq(aac);
}
static int aac_acquire_resources(struct aac_dev *dev)
{
unsigned long status;
/*
* First clear out all interrupts. Then enable the one's that we
* can handle.
*/
while (!((status = src_readl(dev, MUnit.OMR)) & KERNEL_UP_AND_RUNNING)
|| status == 0xffffffff)
msleep(20);
aac_adapter_disable_int(dev);
aac_adapter_enable_int(dev);
if (aac_is_src(dev))
aac_define_int_mode(dev);
if (dev->msi_enabled)
aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
if (aac_acquire_irq(dev))
goto error_iounmap;
aac_adapter_enable_int(dev);
/*max msix may change after EEH
* Re-assign vectors to fibs
*/
aac_fib_vector_assign(dev);
if (!dev->sync_mode) {
/* After EEH recovery or suspend resume, max_msix count
* may change, therefore updating in init as well.
*/
dev->init->r7.no_of_msix_vectors = cpu_to_le32(dev->max_msix);
aac_adapter_start(dev);
}
return 0;
error_iounmap:
return -1;
}
static int __maybe_unused aac_suspend(struct device *dev)
{
struct Scsi_Host *shost = dev_get_drvdata(dev);
struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
scsi_host_block(shost);
aac_cancel_rescan_worker(aac);
aac_send_shutdown(aac);
aac_release_resources(aac);
return 0;
}
static int __maybe_unused aac_resume(struct device *dev)
{
struct Scsi_Host *shost = dev_get_drvdata(dev);
struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
if (aac_acquire_resources(aac))
goto fail_device;
/*
* reset this flag to unblock ioctl() as it was set at
* aac_send_shutdown() to block ioctls from upperlayer
*/
aac->adapter_shutdown = 0;
scsi_host_unblock(shost, SDEV_RUNNING);
return 0;
fail_device:
printk(KERN_INFO "%s%d: resume failed.\n", aac->name, aac->id);
scsi_host_put(shost);
return -ENODEV;
}
static void aac_shutdown(struct pci_dev *dev)
{
struct Scsi_Host *shost = pci_get_drvdata(dev);
scsi_host_block(shost);
__aac_shutdown((struct aac_dev *)shost->hostdata);
}
static void aac_remove_one(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
aac_cancel_rescan_worker(aac);
aac->use_map_queue = false;
scsi_remove_host(shost);
__aac_shutdown(aac);
aac_fib_map_free(aac);
dma_free_coherent(&aac->pdev->dev, aac->comm_size, aac->comm_addr,
aac->comm_phys);
kfree(aac->queues);
aac_adapter_ioremap(aac, 0);
kfree(aac->fibs);
kfree(aac->fsa_dev);
list_del(&aac->entry);
scsi_host_put(shost);
pci_disable_device(pdev);
if (list_empty(&aac_devices)) {
unregister_chrdev(aac_cfg_major, "aac");
aac_cfg_major = AAC_CHARDEV_NEEDS_REINIT;
}
}
static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev,
pci_channel_state_t error)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct aac_dev *aac = shost_priv(shost);
dev_err(&pdev->dev, "aacraid: PCI error detected %x\n", error);
switch (error) {
case pci_channel_io_normal:
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
aac->handle_pci_error = 1;
scsi_host_block(shost);
aac_cancel_rescan_worker(aac);
scsi_host_complete_all_commands(shost, DID_NO_CONNECT);
aac_release_resources(aac);
aac_adapter_ioremap(aac, 0);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
aac->handle_pci_error = 1;
scsi_host_complete_all_commands(shost, DID_NO_CONNECT);
return PCI_ERS_RESULT_DISCONNECT;
}
return PCI_ERS_RESULT_NEED_RESET;
}
static pci_ers_result_t aac_pci_mmio_enabled(struct pci_dev *pdev)
{
dev_err(&pdev->dev, "aacraid: PCI error - mmio enabled\n");
return PCI_ERS_RESULT_NEED_RESET;
}
static pci_ers_result_t aac_pci_slot_reset(struct pci_dev *pdev)
{
dev_err(&pdev->dev, "aacraid: PCI error - slot reset\n");
pci_restore_state(pdev);
if (pci_enable_device(pdev)) {
dev_warn(&pdev->dev,
"aacraid: failed to enable slave\n");
goto fail_device;
}
pci_set_master(pdev);
if (pci_enable_device_mem(pdev)) {
dev_err(&pdev->dev, "pci_enable_device_mem failed\n");
goto fail_device;
}
return PCI_ERS_RESULT_RECOVERED;
fail_device:
dev_err(&pdev->dev, "aacraid: PCI error - slot reset failed\n");
return PCI_ERS_RESULT_DISCONNECT;
}
static void aac_pci_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct aac_dev *aac = (struct aac_dev *)shost_priv(shost);
if (aac_adapter_ioremap(aac, aac->base_size)) {
dev_err(&pdev->dev, "aacraid: ioremap failed\n");
/* remap failed, go back ... */
aac->comm_interface = AAC_COMM_PRODUCER;
if (aac_adapter_ioremap(aac, AAC_MIN_FOOTPRINT_SIZE)) {
dev_warn(&pdev->dev,
"aacraid: unable to map adapter.\n");
return;
}
}
msleep(10000);
aac_acquire_resources(aac);
/*
* reset this flag to unblock ioctl() as it was set
* at aac_send_shutdown() to block ioctls from upperlayer
*/
aac->adapter_shutdown = 0;
aac->handle_pci_error = 0;
scsi_host_unblock(shost, SDEV_RUNNING);
aac_scan_host(aac);
pci_save_state(pdev);
dev_err(&pdev->dev, "aacraid: PCI error - resume\n");
}
static struct pci_error_handlers aac_pci_err_handler = {
.error_detected = aac_pci_error_detected,
.mmio_enabled = aac_pci_mmio_enabled,
.slot_reset = aac_pci_slot_reset,
.resume = aac_pci_resume,
};
static SIMPLE_DEV_PM_OPS(aac_pm_ops, aac_suspend, aac_resume);
static struct pci_driver aac_pci_driver = {
.name = AAC_DRIVERNAME,
.id_table = aac_pci_tbl,
.probe = aac_probe_one,
.remove = aac_remove_one,
.driver.pm = &aac_pm_ops,
.shutdown = aac_shutdown,
.err_handler = &aac_pci_err_handler,
};
static int __init aac_init(void)
{
int error;
printk(KERN_INFO "Adaptec %s driver %s\n",
AAC_DRIVERNAME, aac_driver_version);
error = pci_register_driver(&aac_pci_driver);
if (error < 0)
return error;
aac_init_char();
return 0;
}
static void __exit aac_exit(void)
{
if (aac_cfg_major > -1)
unregister_chrdev(aac_cfg_major, "aac");
pci_unregister_driver(&aac_pci_driver);
}
module_init(aac_init);
module_exit(aac_exit);
|
linux-master
|
drivers/scsi/aacraid/linit.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* aachba.c
*
* Abstract: Contains Interfaces to manage IOs.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/blkdev.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <asm/unaligned.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include "aacraid.h"
/* values for inqd_pdt: Peripheral device type in plain English */
#define INQD_PDT_DA 0x00 /* Direct-access (DISK) device */
#define INQD_PDT_PROC 0x03 /* Processor device */
#define INQD_PDT_CHNGR 0x08 /* Changer (jukebox, scsi2) */
#define INQD_PDT_COMM 0x09 /* Communication device (scsi2) */
#define INQD_PDT_NOLUN2 0x1f /* Unknown Device (scsi2) */
#define INQD_PDT_NOLUN 0x7f /* Logical Unit Not Present */
#define INQD_PDT_DMASK 0x1F /* Peripheral Device Type Mask */
#define INQD_PDT_QMASK 0xE0 /* Peripheral Device Qualifer Mask */
/*
* Sense codes
*/
#define SENCODE_NO_SENSE 0x00
#define SENCODE_END_OF_DATA 0x00
#define SENCODE_BECOMING_READY 0x04
#define SENCODE_INIT_CMD_REQUIRED 0x04
#define SENCODE_UNRECOVERED_READ_ERROR 0x11
#define SENCODE_PARAM_LIST_LENGTH_ERROR 0x1A
#define SENCODE_INVALID_COMMAND 0x20
#define SENCODE_LBA_OUT_OF_RANGE 0x21
#define SENCODE_INVALID_CDB_FIELD 0x24
#define SENCODE_LUN_NOT_SUPPORTED 0x25
#define SENCODE_INVALID_PARAM_FIELD 0x26
#define SENCODE_PARAM_NOT_SUPPORTED 0x26
#define SENCODE_PARAM_VALUE_INVALID 0x26
#define SENCODE_RESET_OCCURRED 0x29
#define SENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x3E
#define SENCODE_INQUIRY_DATA_CHANGED 0x3F
#define SENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x39
#define SENCODE_DIAGNOSTIC_FAILURE 0x40
#define SENCODE_INTERNAL_TARGET_FAILURE 0x44
#define SENCODE_INVALID_MESSAGE_ERROR 0x49
#define SENCODE_LUN_FAILED_SELF_CONFIG 0x4c
#define SENCODE_OVERLAPPED_COMMAND 0x4E
/*
* Additional sense codes
*/
#define ASENCODE_NO_SENSE 0x00
#define ASENCODE_END_OF_DATA 0x05
#define ASENCODE_BECOMING_READY 0x01
#define ASENCODE_INIT_CMD_REQUIRED 0x02
#define ASENCODE_PARAM_LIST_LENGTH_ERROR 0x00
#define ASENCODE_INVALID_COMMAND 0x00
#define ASENCODE_LBA_OUT_OF_RANGE 0x00
#define ASENCODE_INVALID_CDB_FIELD 0x00
#define ASENCODE_LUN_NOT_SUPPORTED 0x00
#define ASENCODE_INVALID_PARAM_FIELD 0x00
#define ASENCODE_PARAM_NOT_SUPPORTED 0x01
#define ASENCODE_PARAM_VALUE_INVALID 0x02
#define ASENCODE_RESET_OCCURRED 0x00
#define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x00
#define ASENCODE_INQUIRY_DATA_CHANGED 0x03
#define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x00
#define ASENCODE_DIAGNOSTIC_FAILURE 0x80
#define ASENCODE_INTERNAL_TARGET_FAILURE 0x00
#define ASENCODE_INVALID_MESSAGE_ERROR 0x00
#define ASENCODE_LUN_FAILED_SELF_CONFIG 0x00
#define ASENCODE_OVERLAPPED_COMMAND 0x00
#define BYTE0(x) (unsigned char)(x)
#define BYTE1(x) (unsigned char)((x) >> 8)
#define BYTE2(x) (unsigned char)((x) >> 16)
#define BYTE3(x) (unsigned char)((x) >> 24)
/* MODE_SENSE data format */
typedef struct {
struct {
u8 data_length;
u8 med_type;
u8 dev_par;
u8 bd_length;
} __attribute__((packed)) hd;
struct {
u8 dens_code;
u8 block_count[3];
u8 reserved;
u8 block_length[3];
} __attribute__((packed)) bd;
u8 mpc_buf[3];
} __attribute__((packed)) aac_modep_data;
/* MODE_SENSE_10 data format */
typedef struct {
struct {
u8 data_length[2];
u8 med_type;
u8 dev_par;
u8 rsrvd[2];
u8 bd_length[2];
} __attribute__((packed)) hd;
struct {
u8 dens_code;
u8 block_count[3];
u8 reserved;
u8 block_length[3];
} __attribute__((packed)) bd;
u8 mpc_buf[3];
} __attribute__((packed)) aac_modep10_data;
/*------------------------------------------------------------------------------
* S T R U C T S / T Y P E D E F S
*----------------------------------------------------------------------------*/
/* SCSI inquiry data */
struct inquiry_data {
u8 inqd_pdt; /* Peripheral qualifier | Peripheral Device Type */
u8 inqd_dtq; /* RMB | Device Type Qualifier */
u8 inqd_ver; /* ISO version | ECMA version | ANSI-approved version */
u8 inqd_rdf; /* AENC | TrmIOP | Response data format */
u8 inqd_len; /* Additional length (n-4) */
u8 inqd_pad1[2];/* Reserved - must be zero */
u8 inqd_pad2; /* RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
u8 inqd_vid[8]; /* Vendor ID */
u8 inqd_pid[16];/* Product ID */
u8 inqd_prl[4]; /* Product Revision Level */
};
/* Added for VPD 0x83 */
struct tvpd_id_descriptor_type_1 {
u8 codeset:4; /* VPD_CODE_SET */
u8 reserved:4;
u8 identifiertype:4; /* VPD_IDENTIFIER_TYPE */
u8 reserved2:4;
u8 reserved3;
u8 identifierlength;
u8 venid[8];
u8 productid[16];
u8 serialnumber[8]; /* SN in ASCII */
};
struct tvpd_id_descriptor_type_2 {
u8 codeset:4; /* VPD_CODE_SET */
u8 reserved:4;
u8 identifiertype:4; /* VPD_IDENTIFIER_TYPE */
u8 reserved2:4;
u8 reserved3;
u8 identifierlength;
struct teu64id {
u32 Serial;
/* The serial number supposed to be 40 bits,
* bit we only support 32, so make the last byte zero. */
u8 reserved;
u8 venid[3];
} eu64id;
};
struct tvpd_id_descriptor_type_3 {
u8 codeset : 4; /* VPD_CODE_SET */
u8 reserved : 4;
u8 identifiertype : 4; /* VPD_IDENTIFIER_TYPE */
u8 reserved2 : 4;
u8 reserved3;
u8 identifierlength;
u8 Identifier[16];
};
struct tvpd_page83 {
u8 DeviceType:5;
u8 DeviceTypeQualifier:3;
u8 PageCode;
u8 reserved;
u8 PageLength;
struct tvpd_id_descriptor_type_1 type1;
struct tvpd_id_descriptor_type_2 type2;
struct tvpd_id_descriptor_type_3 type3;
};
/*
* M O D U L E G L O B A L S
*/
static long aac_build_sg(struct scsi_cmnd *scsicmd, struct sgmap *sgmap);
static long aac_build_sg64(struct scsi_cmnd *scsicmd, struct sgmap64 *psg);
static long aac_build_sgraw(struct scsi_cmnd *scsicmd, struct sgmapraw *psg);
static long aac_build_sgraw2(struct scsi_cmnd *scsicmd,
struct aac_raw_io2 *rio2, int sg_max);
static long aac_build_sghba(struct scsi_cmnd *scsicmd,
struct aac_hba_cmd_req *hbacmd,
int sg_max, u64 sg_address);
static int aac_convert_sgraw2(struct aac_raw_io2 *rio2,
int pages, int nseg, int nseg_new);
static void aac_probe_container_scsi_done(struct scsi_cmnd *scsi_cmnd);
static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
static int aac_send_hba_fib(struct scsi_cmnd *scsicmd);
#ifdef AAC_DETAILED_STATUS_INFO
static char *aac_get_status_string(u32 status);
#endif
/*
* Non dasd selection is handled entirely in aachba now
*/
static int nondasd = -1;
static int aac_cache = 2; /* WCE=0 to avoid performance problems */
static int dacmode = -1;
int aac_msi;
int aac_commit = -1;
int startup_timeout = 180;
int aif_timeout = 120;
int aac_sync_mode; /* Only Sync. transfer - disabled */
static int aac_convert_sgl = 1; /* convert non-conformable s/g list - enabled */
module_param(aac_sync_mode, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(aac_sync_mode, "Force sync. transfer mode"
" 0=off, 1=on");
module_param(aac_convert_sgl, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(aac_convert_sgl, "Convert non-conformable s/g list"
" 0=off, 1=on");
module_param(nondasd, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices."
" 0=off, 1=on");
module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n"
"\tbit 0 - Disable FUA in WRITE SCSI commands\n"
"\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n"
"\tbit 2 - Disable only if Battery is protecting Cache");
module_param(dacmode, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC."
" 0=off, 1=on");
module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the"
" adapter for foreign arrays.\n"
"This is typically needed in systems that do not have a BIOS."
" 0=off, 1=on");
module_param_named(msi, aac_msi, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(msi, "IRQ handling."
" 0=PIC(default), 1=MSI, 2=MSI-X)");
module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for"
" adapter to have its kernel up and\n"
"running. This is typically adjusted for large systems that do not"
" have a BIOS.");
module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for"
" applications to pick up AIFs before\n"
"deregistering them. This is typically adjusted for heavily burdened"
" systems.");
int aac_fib_dump;
module_param(aac_fib_dump, int, 0644);
MODULE_PARM_DESC(aac_fib_dump, "Dump controller fibs prior to IOP_RESET 0=off, 1=on");
int numacb = -1;
module_param(numacb, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control"
" blocks (FIB) allocated. Valid values are 512 and down. Default is"
" to use suggestion from Firmware.");
static int acbsize = -1;
module_param(acbsize, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)"
" size. Valid values are 512, 2048, 4096 and 8192. Default is to use"
" suggestion from Firmware.");
int update_interval = 30 * 60;
module_param(update_interval, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync"
" updates issued to adapter.");
int check_interval = 60;
module_param(check_interval, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health"
" checks.");
int aac_check_reset = 1;
module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(check_reset, "If adapter fails health check, reset the"
" adapter. a value of -1 forces the reset to adapters programmed to"
" ignore it.");
int expose_physicals = -1;
module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays."
" -1=protect 0=off, 1=on");
int aac_reset_devices;
module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
static int aac_wwn = 1;
module_param_named(wwn, aac_wwn, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(wwn, "Select a WWN type for the arrays:\n"
"\t0 - Disable\n"
"\t1 - Array Meta Data Signature (default)\n"
"\t2 - Adapter Serial Number");
static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
struct fib *fibptr) {
struct scsi_device *device;
if (unlikely(!scsicmd)) {
dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
aac_fib_complete(fibptr);
return 0;
}
aac_priv(scsicmd)->owner = AAC_OWNER_MIDLEVEL;
device = scsicmd->device;
if (unlikely(!device)) {
dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
aac_fib_complete(fibptr);
return 0;
}
return 1;
}
/**
* aac_get_config_status - check the adapter configuration
* @dev: aac driver data
* @commit_flag: force sending CT_COMMIT_CONFIG
*
* Query config status, and commit the configuration if needed.
*/
int aac_get_config_status(struct aac_dev *dev, int commit_flag)
{
int status = 0;
struct fib * fibptr;
if (!(fibptr = aac_fib_alloc(dev)))
return -ENOMEM;
aac_fib_init(fibptr);
{
struct aac_get_config_status *dinfo;
dinfo = (struct aac_get_config_status *) fib_data(fibptr);
dinfo->command = cpu_to_le32(VM_ContainerConfig);
dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
}
status = aac_fib_send(ContainerCommand,
fibptr,
sizeof (struct aac_get_config_status),
FsaNormal,
1, 1,
NULL, NULL);
if (status < 0) {
printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
} else {
struct aac_get_config_status_resp *reply
= (struct aac_get_config_status_resp *) fib_data(fibptr);
dprintk((KERN_WARNING
"aac_get_config_status: response=%d status=%d action=%d\n",
le32_to_cpu(reply->response),
le32_to_cpu(reply->status),
le32_to_cpu(reply->data.action)));
if ((le32_to_cpu(reply->response) != ST_OK) ||
(le32_to_cpu(reply->status) != CT_OK) ||
(le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
status = -EINVAL;
}
}
/* Do not set XferState to zero unless receives a response from F/W */
if (status >= 0)
aac_fib_complete(fibptr);
/* Send a CT_COMMIT_CONFIG to enable discovery of devices */
if (status >= 0) {
if ((aac_commit == 1) || commit_flag) {
struct aac_commit_config * dinfo;
aac_fib_init(fibptr);
dinfo = (struct aac_commit_config *) fib_data(fibptr);
dinfo->command = cpu_to_le32(VM_ContainerConfig);
dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
status = aac_fib_send(ContainerCommand,
fibptr,
sizeof (struct aac_commit_config),
FsaNormal,
1, 1,
NULL, NULL);
/* Do not set XferState to zero unless
* receives a response from F/W */
if (status >= 0)
aac_fib_complete(fibptr);
} else if (aac_commit == 0) {
printk(KERN_WARNING
"aac_get_config_status: Foreign device configurations are being ignored\n");
}
}
/* FIB should be freed only after getting the response from the F/W */
if (status != -ERESTARTSYS)
aac_fib_free(fibptr);
return status;
}
static void aac_expose_phy_device(struct scsi_cmnd *scsicmd)
{
char inq_data;
scsi_sg_copy_to_buffer(scsicmd, &inq_data, sizeof(inq_data));
if ((inq_data & 0x20) && (inq_data & 0x1f) == TYPE_DISK) {
inq_data &= 0xdf;
scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
}
}
/**
* aac_get_containers - list containers
* @dev: aac driver data
*
* Make a list of all containers on this controller
*/
int aac_get_containers(struct aac_dev *dev)
{
struct fsa_dev_info *fsa_dev_ptr;
u32 index;
int status = 0;
struct fib * fibptr;
struct aac_get_container_count *dinfo;
struct aac_get_container_count_resp *dresp;
int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
if (!(fibptr = aac_fib_alloc(dev)))
return -ENOMEM;
aac_fib_init(fibptr);
dinfo = (struct aac_get_container_count *) fib_data(fibptr);
dinfo->command = cpu_to_le32(VM_ContainerConfig);
dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
status = aac_fib_send(ContainerCommand,
fibptr,
sizeof (struct aac_get_container_count),
FsaNormal,
1, 1,
NULL, NULL);
if (status >= 0) {
dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
if (fibptr->dev->supplement_adapter_info.supported_options2 &
AAC_OPTION_SUPPORTED_240_VOLUMES) {
maximum_num_containers =
le32_to_cpu(dresp->MaxSimpleVolumes);
}
aac_fib_complete(fibptr);
}
/* FIB should be freed only after getting the response from the F/W */
if (status != -ERESTARTSYS)
aac_fib_free(fibptr);
if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
if (dev->fsa_dev == NULL ||
dev->maximum_num_containers != maximum_num_containers) {
fsa_dev_ptr = dev->fsa_dev;
dev->fsa_dev = kcalloc(maximum_num_containers,
sizeof(*fsa_dev_ptr), GFP_KERNEL);
kfree(fsa_dev_ptr);
fsa_dev_ptr = NULL;
if (!dev->fsa_dev)
return -ENOMEM;
dev->maximum_num_containers = maximum_num_containers;
}
for (index = 0; index < dev->maximum_num_containers; index++) {
dev->fsa_dev[index].devname[0] = '\0';
dev->fsa_dev[index].valid = 0;
status = aac_probe_container(dev, index);
if (status < 0) {
printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
break;
}
}
return status;
}
static void aac_scsi_done(struct scsi_cmnd *scmd)
{
if (scmd->device->request_queue) {
/* SCSI command has been submitted by the SCSI mid-layer. */
scsi_done(scmd);
} else {
/* SCSI command has been submitted by aac_probe_container(). */
aac_probe_container_scsi_done(scmd);
}
}
static void get_container_name_callback(void *context, struct fib * fibptr)
{
struct aac_get_name_resp * get_name_reply;
struct scsi_cmnd * scsicmd;
scsicmd = (struct scsi_cmnd *) context;
if (!aac_valid_context(scsicmd, fibptr))
return;
dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
BUG_ON(fibptr == NULL);
get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
/* Failure is irrelevant, using default value instead */
if ((le32_to_cpu(get_name_reply->status) == CT_OK)
&& (get_name_reply->data[0] != '\0')) {
char *sp = get_name_reply->data;
int data_size = sizeof_field(struct aac_get_name_resp, data);
sp[data_size - 1] = '\0';
while (*sp == ' ')
++sp;
if (*sp) {
struct inquiry_data inq;
char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
int count = sizeof(d);
char *dp = d;
do {
*dp++ = (*sp) ? *sp++ : ' ';
} while (--count > 0);
scsi_sg_copy_to_buffer(scsicmd, &inq, sizeof(inq));
memcpy(inq.inqd_pid, d, sizeof(d));
scsi_sg_copy_from_buffer(scsicmd, &inq, sizeof(inq));
}
}
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
aac_fib_complete(fibptr);
aac_scsi_done(scsicmd);
}
/*
* aac_get_container_name - get container name, none blocking.
*/
static int aac_get_container_name(struct scsi_cmnd * scsicmd)
{
int status;
int data_size;
struct aac_get_name *dinfo;
struct fib * cmd_fibcontext;
struct aac_dev * dev;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
data_size = sizeof_field(struct aac_get_name_resp, data);
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
aac_fib_init(cmd_fibcontext);
dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
dinfo->command = cpu_to_le32(VM_ContainerConfig);
dinfo->type = cpu_to_le32(CT_READ_NAME);
dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
dinfo->count = cpu_to_le32(data_size - 1);
status = aac_fib_send(ContainerCommand,
cmd_fibcontext,
sizeof(struct aac_get_name_resp),
FsaNormal,
0, 1,
(fib_callback)get_container_name_callback,
(void *) scsicmd);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
aac_fib_complete(cmd_fibcontext);
return -1;
}
static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
{
struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
return aac_scsi_cmd(scsicmd);
scsicmd->result = DID_NO_CONNECT << 16;
aac_scsi_done(scsicmd);
return 0;
}
static void _aac_probe_container2(void * context, struct fib * fibptr)
{
struct fsa_dev_info *fsa_dev_ptr;
int (*callback)(struct scsi_cmnd *);
struct scsi_cmnd *scsicmd = context;
struct aac_cmd_priv *cmd_priv = aac_priv(scsicmd);
int i;
if (!aac_valid_context(scsicmd, fibptr))
return;
cmd_priv->status = 0;
fsa_dev_ptr = fibptr->dev->fsa_dev;
if (fsa_dev_ptr) {
struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
__le32 sup_options2;
fsa_dev_ptr += scmd_id(scsicmd);
sup_options2 =
fibptr->dev->supplement_adapter_info.supported_options2;
if ((le32_to_cpu(dresp->status) == ST_OK) &&
(le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
(le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
if (!(sup_options2 & AAC_OPTION_VARIABLE_BLOCK_SIZE)) {
dresp->mnt[0].fileinfo.bdevinfo.block_size = 0x200;
fsa_dev_ptr->block_size = 0x200;
} else {
fsa_dev_ptr->block_size =
le32_to_cpu(dresp->mnt[0].fileinfo.bdevinfo.block_size);
}
for (i = 0; i < 16; i++)
fsa_dev_ptr->identifier[i] =
dresp->mnt[0].fileinfo.bdevinfo
.identifier[i];
fsa_dev_ptr->valid = 1;
/* sense_key holds the current state of the spin-up */
if (dresp->mnt[0].state & cpu_to_le32(FSCS_NOT_READY))
fsa_dev_ptr->sense_data.sense_key = NOT_READY;
else if (fsa_dev_ptr->sense_data.sense_key == NOT_READY)
fsa_dev_ptr->sense_data.sense_key = NO_SENSE;
fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
fsa_dev_ptr->size
= ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
(((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
}
if ((fsa_dev_ptr->valid & 1) == 0)
fsa_dev_ptr->valid = 0;
cmd_priv->status = le32_to_cpu(dresp->count);
}
aac_fib_complete(fibptr);
aac_fib_free(fibptr);
callback = cmd_priv->callback;
cmd_priv->callback = NULL;
(*callback)(scsicmd);
return;
}
static void _aac_probe_container1(void * context, struct fib * fibptr)
{
struct scsi_cmnd * scsicmd;
struct aac_mount * dresp;
struct aac_query_mount *dinfo;
int status;
dresp = (struct aac_mount *) fib_data(fibptr);
if (!aac_supports_2T(fibptr->dev)) {
dresp->mnt[0].capacityhigh = 0;
if ((le32_to_cpu(dresp->status) == ST_OK) &&
(le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
_aac_probe_container2(context, fibptr);
return;
}
}
scsicmd = (struct scsi_cmnd *) context;
if (!aac_valid_context(scsicmd, fibptr))
return;
aac_fib_init(fibptr);
dinfo = (struct aac_query_mount *)fib_data(fibptr);
if (fibptr->dev->supplement_adapter_info.supported_options2 &
AAC_OPTION_VARIABLE_BLOCK_SIZE)
dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
else
dinfo->command = cpu_to_le32(VM_NameServe64);
dinfo->count = cpu_to_le32(scmd_id(scsicmd));
dinfo->type = cpu_to_le32(FT_FILESYS);
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
status = aac_fib_send(ContainerCommand,
fibptr,
sizeof(struct aac_query_mount),
FsaNormal,
0, 1,
_aac_probe_container2,
(void *) scsicmd);
/*
* Check that the command queued to the controller
*/
if (status < 0 && status != -EINPROGRESS) {
/* Inherit results from VM_NameServe, if any */
dresp->status = cpu_to_le32(ST_OK);
_aac_probe_container2(context, fibptr);
}
}
static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
{
struct aac_cmd_priv *cmd_priv = aac_priv(scsicmd);
struct fib * fibptr;
int status = -ENOMEM;
if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
struct aac_query_mount *dinfo;
aac_fib_init(fibptr);
dinfo = (struct aac_query_mount *)fib_data(fibptr);
if (fibptr->dev->supplement_adapter_info.supported_options2 &
AAC_OPTION_VARIABLE_BLOCK_SIZE)
dinfo->command = cpu_to_le32(VM_NameServeAllBlk);
else
dinfo->command = cpu_to_le32(VM_NameServe);
dinfo->count = cpu_to_le32(scmd_id(scsicmd));
dinfo->type = cpu_to_le32(FT_FILESYS);
cmd_priv->callback = callback;
cmd_priv->owner = AAC_OWNER_FIRMWARE;
status = aac_fib_send(ContainerCommand,
fibptr,
sizeof(struct aac_query_mount),
FsaNormal,
0, 1,
_aac_probe_container1,
(void *) scsicmd);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
if (status < 0) {
cmd_priv->callback = NULL;
aac_fib_complete(fibptr);
aac_fib_free(fibptr);
}
}
if (status < 0) {
struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
if (fsa_dev_ptr) {
fsa_dev_ptr += scmd_id(scsicmd);
if ((fsa_dev_ptr->valid & 1) == 0) {
fsa_dev_ptr->valid = 0;
return (*callback)(scsicmd);
}
}
}
return status;
}
/**
* aac_probe_container_callback1 - query a logical volume
* @scsicmd: the scsi command block
*
* Queries the controller about the given volume. The volume information
* is updated in the struct fsa_dev_info structure rather than returned.
*/
static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
{
scsicmd->device = NULL;
return 0;
}
static void aac_probe_container_scsi_done(struct scsi_cmnd *scsi_cmnd)
{
aac_probe_container_callback1(scsi_cmnd);
}
int aac_probe_container(struct aac_dev *dev, int cid)
{
struct aac_cmd_priv *cmd_priv;
struct scsi_cmnd *scsicmd = kzalloc(sizeof(*scsicmd) + sizeof(*cmd_priv), GFP_KERNEL);
struct scsi_device *scsidev = kzalloc(sizeof(*scsidev), GFP_KERNEL);
int status;
if (!scsicmd || !scsidev) {
kfree(scsicmd);
kfree(scsidev);
return -ENOMEM;
}
scsicmd->device = scsidev;
scsidev->sdev_state = 0;
scsidev->id = cid;
scsidev->host = dev->scsi_host_ptr;
if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
while (scsicmd->device == scsidev)
schedule();
kfree(scsidev);
cmd_priv = aac_priv(scsicmd);
status = cmd_priv->status;
kfree(scsicmd);
return status;
}
/* Local Structure to set SCSI inquiry data strings */
struct scsi_inq {
char vid[8]; /* Vendor ID */
char pid[16]; /* Product ID */
char prl[4]; /* Product Revision Level */
};
/**
* inqstrcpy - string merge
* @a: string to copy from
* @b: string to copy to
*
* Copy a String from one location to another
* without copying \0
*/
static void inqstrcpy(char *a, char *b)
{
while (*a != (char)0)
*b++ = *a++;
}
static char *container_types[] = {
"None",
"Volume",
"Mirror",
"Stripe",
"RAID5",
"SSRW",
"SSRO",
"Morph",
"Legacy",
"RAID4",
"RAID10",
"RAID00",
"V-MIRRORS",
"PSEUDO R4",
"RAID50",
"RAID5D",
"RAID5D0",
"RAID1E",
"RAID6",
"RAID60",
"Unknown"
};
char * get_container_type(unsigned tindex)
{
if (tindex >= ARRAY_SIZE(container_types))
tindex = ARRAY_SIZE(container_types) - 1;
return container_types[tindex];
}
/* Function: setinqstr
*
* Arguments: [1] pointer to void [1] int
*
* Purpose: Sets SCSI inquiry data strings for vendor, product
* and revision level. Allows strings to be set in platform dependent
* files instead of in OS dependent driver source.
*/
static void setinqstr(struct aac_dev *dev, void *data, int tindex)
{
struct scsi_inq *str;
struct aac_supplement_adapter_info *sup_adap_info;
sup_adap_info = &dev->supplement_adapter_info;
str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
memset(str, ' ', sizeof(*str));
if (sup_adap_info->adapter_type_text[0]) {
int c;
char *cp;
char *cname = kmemdup(sup_adap_info->adapter_type_text,
sizeof(sup_adap_info->adapter_type_text),
GFP_ATOMIC);
if (!cname)
return;
cp = cname;
if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
inqstrcpy("SMC", str->vid);
else {
c = sizeof(str->vid);
while (*cp && *cp != ' ' && --c)
++cp;
c = *cp;
*cp = '\0';
inqstrcpy(cname, str->vid);
*cp = c;
while (*cp && *cp != ' ')
++cp;
}
while (*cp == ' ')
++cp;
/* last six chars reserved for vol type */
if (strlen(cp) > sizeof(str->pid))
cp[sizeof(str->pid)] = '\0';
inqstrcpy (cp, str->pid);
kfree(cname);
} else {
struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
inqstrcpy (mp->vname, str->vid);
/* last six chars reserved for vol type */
inqstrcpy (mp->model, str->pid);
}
if (tindex < ARRAY_SIZE(container_types)){
char *findit = str->pid;
for ( ; *findit != ' '; findit++); /* walk till we find a space */
/* RAID is superfluous in the context of a RAID device */
if (memcmp(findit-4, "RAID", 4) == 0)
*(findit -= 4) = ' ';
if (((findit - str->pid) + strlen(container_types[tindex]))
< (sizeof(str->pid) + sizeof(str->prl)))
inqstrcpy (container_types[tindex], findit + 1);
}
inqstrcpy ("V1.0", str->prl);
}
static void build_vpd83_type3(struct tvpd_page83 *vpdpage83data,
struct aac_dev *dev, struct scsi_cmnd *scsicmd)
{
int container;
vpdpage83data->type3.codeset = 1;
vpdpage83data->type3.identifiertype = 3;
vpdpage83data->type3.identifierlength = sizeof(vpdpage83data->type3)
- 4;
for (container = 0; container < dev->maximum_num_containers;
container++) {
if (scmd_id(scsicmd) == container) {
memcpy(vpdpage83data->type3.Identifier,
dev->fsa_dev[container].identifier,
16);
break;
}
}
}
static void get_container_serial_callback(void *context, struct fib * fibptr)
{
struct aac_get_serial_resp * get_serial_reply;
struct scsi_cmnd * scsicmd;
BUG_ON(fibptr == NULL);
scsicmd = (struct scsi_cmnd *) context;
if (!aac_valid_context(scsicmd, fibptr))
return;
get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
/* Failure is irrelevant, using default value instead */
if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
/*Check to see if it's for VPD 0x83 or 0x80 */
if (scsicmd->cmnd[2] == 0x83) {
/* vpd page 0x83 - Device Identification Page */
struct aac_dev *dev;
int i;
struct tvpd_page83 vpdpage83data;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
memset(((u8 *)&vpdpage83data), 0,
sizeof(vpdpage83data));
/* DIRECT_ACCESS_DEVIC */
vpdpage83data.DeviceType = 0;
/* DEVICE_CONNECTED */
vpdpage83data.DeviceTypeQualifier = 0;
/* VPD_DEVICE_IDENTIFIERS */
vpdpage83data.PageCode = 0x83;
vpdpage83data.reserved = 0;
vpdpage83data.PageLength =
sizeof(vpdpage83data.type1) +
sizeof(vpdpage83data.type2);
/* VPD 83 Type 3 is not supported for ARC */
if (dev->sa_firmware)
vpdpage83data.PageLength +=
sizeof(vpdpage83data.type3);
/* T10 Vendor Identifier Field Format */
/* VpdcodesetAscii */
vpdpage83data.type1.codeset = 2;
/* VpdIdentifierTypeVendorId */
vpdpage83data.type1.identifiertype = 1;
vpdpage83data.type1.identifierlength =
sizeof(vpdpage83data.type1) - 4;
/* "ADAPTEC " for adaptec */
memcpy(vpdpage83data.type1.venid,
"ADAPTEC ",
sizeof(vpdpage83data.type1.venid));
memcpy(vpdpage83data.type1.productid,
"ARRAY ",
sizeof(
vpdpage83data.type1.productid));
/* Convert to ascii based serial number.
* The LSB is the end.
*/
for (i = 0; i < 8; i++) {
u8 temp =
(u8)((get_serial_reply->uid >> ((7 - i) * 4)) & 0xF);
if (temp > 0x9) {
vpdpage83data.type1.serialnumber[i] =
'A' + (temp - 0xA);
} else {
vpdpage83data.type1.serialnumber[i] =
'0' + temp;
}
}
/* VpdCodeSetBinary */
vpdpage83data.type2.codeset = 1;
/* VpdidentifiertypeEUI64 */
vpdpage83data.type2.identifiertype = 2;
vpdpage83data.type2.identifierlength =
sizeof(vpdpage83data.type2) - 4;
vpdpage83data.type2.eu64id.venid[0] = 0xD0;
vpdpage83data.type2.eu64id.venid[1] = 0;
vpdpage83data.type2.eu64id.venid[2] = 0;
vpdpage83data.type2.eu64id.Serial =
get_serial_reply->uid;
vpdpage83data.type2.eu64id.reserved = 0;
/*
* VpdIdentifierTypeFCPHName
* VPD 0x83 Type 3 not supported for ARC
*/
if (dev->sa_firmware) {
build_vpd83_type3(&vpdpage83data,
dev, scsicmd);
}
/* Move the inquiry data to the response buffer. */
scsi_sg_copy_from_buffer(scsicmd, &vpdpage83data,
sizeof(vpdpage83data));
} else {
/* It must be for VPD 0x80 */
char sp[13];
/* EVPD bit set */
sp[0] = INQD_PDT_DA;
sp[1] = scsicmd->cmnd[2];
sp[2] = 0;
sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
le32_to_cpu(get_serial_reply->uid));
scsi_sg_copy_from_buffer(scsicmd, sp,
sizeof(sp));
}
}
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
aac_fib_complete(fibptr);
aac_scsi_done(scsicmd);
}
/*
* aac_get_container_serial - get container serial, none blocking.
*/
static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
{
int status;
struct aac_get_serial *dinfo;
struct fib * cmd_fibcontext;
struct aac_dev * dev;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
aac_fib_init(cmd_fibcontext);
dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
dinfo->command = cpu_to_le32(VM_ContainerConfig);
dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
status = aac_fib_send(ContainerCommand,
cmd_fibcontext,
sizeof(struct aac_get_serial_resp),
FsaNormal,
0, 1,
(fib_callback) get_container_serial_callback,
(void *) scsicmd);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
aac_fib_complete(cmd_fibcontext);
return -1;
}
/* Function: setinqserial
*
* Arguments: [1] pointer to void [1] int
*
* Purpose: Sets SCSI Unit Serial number.
* This is a fake. We should read a proper
* serial number from the container. <SuSE>But
* without docs it's quite hard to do it :-)
* So this will have to do in the meantime.</SuSE>
*/
static int setinqserial(struct aac_dev *dev, void *data, int cid)
{
/*
* This breaks array migration.
*/
return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
le32_to_cpu(dev->adapter_info.serial[0]), cid);
}
static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
u8 sense_code, u8 a_sense_code, u8 bit_pointer, u16 field_pointer)
{
u8 *sense_buf = (u8 *)sense_data;
/* Sense data valid, err code 70h */
sense_buf[0] = 0x70; /* No info field */
sense_buf[1] = 0; /* Segment number, always zero */
sense_buf[2] = sense_key; /* Sense key */
sense_buf[12] = sense_code; /* Additional sense code */
sense_buf[13] = a_sense_code; /* Additional sense code qualifier */
if (sense_key == ILLEGAL_REQUEST) {
sense_buf[7] = 10; /* Additional sense length */
sense_buf[15] = bit_pointer;
/* Illegal parameter is in the parameter block */
if (sense_code == SENCODE_INVALID_CDB_FIELD)
sense_buf[15] |= 0xc0;/* Std sense key specific field */
/* Illegal parameter is in the CDB block */
sense_buf[16] = field_pointer >> 8; /* MSB */
sense_buf[17] = field_pointer; /* LSB */
} else
sense_buf[7] = 6; /* Additional sense length */
}
static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
{
if (lba & 0xffffffff00000000LL) {
int cid = scmd_id(cmd);
dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
cmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
aac_scsi_done(cmd);
return 1;
}
return 0;
}
static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
{
return 0;
}
static void io_callback(void *context, struct fib * fibptr);
static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
{
struct aac_dev *dev = fib->dev;
u16 fibsize, command;
long ret;
aac_fib_init(fib);
if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 ||
dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) &&
!dev->sync_mode) {
struct aac_raw_io2 *readcmd2;
readcmd2 = (struct aac_raw_io2 *) fib_data(fib);
memset(readcmd2, 0, sizeof(struct aac_raw_io2));
readcmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
readcmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
readcmd2->byteCount = cpu_to_le32(count *
dev->fsa_dev[scmd_id(cmd)].block_size);
readcmd2->cid = cpu_to_le16(scmd_id(cmd));
readcmd2->flags = cpu_to_le16(RIO2_IO_TYPE_READ);
ret = aac_build_sgraw2(cmd, readcmd2,
dev->scsi_host_ptr->sg_tablesize);
if (ret < 0)
return ret;
command = ContainerRawIo2;
fibsize = struct_size(readcmd2, sge,
le32_to_cpu(readcmd2->sgeCnt));
} else {
struct aac_raw_io *readcmd;
readcmd = (struct aac_raw_io *) fib_data(fib);
readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
readcmd->count = cpu_to_le32(count *
dev->fsa_dev[scmd_id(cmd)].block_size);
readcmd->cid = cpu_to_le16(scmd_id(cmd));
readcmd->flags = cpu_to_le16(RIO_TYPE_READ);
readcmd->bpTotal = 0;
readcmd->bpComplete = 0;
ret = aac_build_sgraw(cmd, &readcmd->sg);
if (ret < 0)
return ret;
command = ContainerRawIo;
fibsize = sizeof(struct aac_raw_io) +
((le32_to_cpu(readcmd->sg.count)-1) * sizeof(struct sgentryraw));
}
BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
/*
* Now send the Fib to the adapter
*/
return aac_fib_send(command,
fib,
fibsize,
FsaNormal,
0, 1,
(fib_callback) io_callback,
(void *) cmd);
}
static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
{
u16 fibsize;
struct aac_read64 *readcmd;
long ret;
aac_fib_init(fib);
readcmd = (struct aac_read64 *) fib_data(fib);
readcmd->command = cpu_to_le32(VM_CtHostRead64);
readcmd->cid = cpu_to_le16(scmd_id(cmd));
readcmd->sector_count = cpu_to_le16(count);
readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
readcmd->pad = 0;
readcmd->flags = 0;
ret = aac_build_sg64(cmd, &readcmd->sg);
if (ret < 0)
return ret;
fibsize = sizeof(struct aac_read64) +
((le32_to_cpu(readcmd->sg.count) - 1) *
sizeof (struct sgentry64));
BUG_ON (fibsize > (fib->dev->max_fib_size -
sizeof(struct aac_fibhdr)));
/*
* Now send the Fib to the adapter
*/
return aac_fib_send(ContainerCommand64,
fib,
fibsize,
FsaNormal,
0, 1,
(fib_callback) io_callback,
(void *) cmd);
}
static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
{
u16 fibsize;
struct aac_read *readcmd;
struct aac_dev *dev = fib->dev;
long ret;
aac_fib_init(fib);
readcmd = (struct aac_read *) fib_data(fib);
readcmd->command = cpu_to_le32(VM_CtBlockRead);
readcmd->cid = cpu_to_le32(scmd_id(cmd));
readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
readcmd->count = cpu_to_le32(count *
dev->fsa_dev[scmd_id(cmd)].block_size);
ret = aac_build_sg(cmd, &readcmd->sg);
if (ret < 0)
return ret;
fibsize = sizeof(struct aac_read) +
((le32_to_cpu(readcmd->sg.count) - 1) *
sizeof (struct sgentry));
BUG_ON (fibsize > (fib->dev->max_fib_size -
sizeof(struct aac_fibhdr)));
/*
* Now send the Fib to the adapter
*/
return aac_fib_send(ContainerCommand,
fib,
fibsize,
FsaNormal,
0, 1,
(fib_callback) io_callback,
(void *) cmd);
}
static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
{
struct aac_dev *dev = fib->dev;
u16 fibsize, command;
long ret;
aac_fib_init(fib);
if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 ||
dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) &&
!dev->sync_mode) {
struct aac_raw_io2 *writecmd2;
writecmd2 = (struct aac_raw_io2 *) fib_data(fib);
memset(writecmd2, 0, sizeof(struct aac_raw_io2));
writecmd2->blockLow = cpu_to_le32((u32)(lba&0xffffffff));
writecmd2->blockHigh = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
writecmd2->byteCount = cpu_to_le32(count *
dev->fsa_dev[scmd_id(cmd)].block_size);
writecmd2->cid = cpu_to_le16(scmd_id(cmd));
writecmd2->flags = (fua && ((aac_cache & 5) != 1) &&
(((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
cpu_to_le16(RIO2_IO_TYPE_WRITE|RIO2_IO_SUREWRITE) :
cpu_to_le16(RIO2_IO_TYPE_WRITE);
ret = aac_build_sgraw2(cmd, writecmd2,
dev->scsi_host_ptr->sg_tablesize);
if (ret < 0)
return ret;
command = ContainerRawIo2;
fibsize = struct_size(writecmd2, sge,
le32_to_cpu(writecmd2->sgeCnt));
} else {
struct aac_raw_io *writecmd;
writecmd = (struct aac_raw_io *) fib_data(fib);
writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
writecmd->count = cpu_to_le32(count *
dev->fsa_dev[scmd_id(cmd)].block_size);
writecmd->cid = cpu_to_le16(scmd_id(cmd));
writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
(((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
cpu_to_le16(RIO_TYPE_WRITE|RIO_SUREWRITE) :
cpu_to_le16(RIO_TYPE_WRITE);
writecmd->bpTotal = 0;
writecmd->bpComplete = 0;
ret = aac_build_sgraw(cmd, &writecmd->sg);
if (ret < 0)
return ret;
command = ContainerRawIo;
fibsize = sizeof(struct aac_raw_io) +
((le32_to_cpu(writecmd->sg.count)-1) * sizeof (struct sgentryraw));
}
BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
/*
* Now send the Fib to the adapter
*/
return aac_fib_send(command,
fib,
fibsize,
FsaNormal,
0, 1,
(fib_callback) io_callback,
(void *) cmd);
}
static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
{
u16 fibsize;
struct aac_write64 *writecmd;
long ret;
aac_fib_init(fib);
writecmd = (struct aac_write64 *) fib_data(fib);
writecmd->command = cpu_to_le32(VM_CtHostWrite64);
writecmd->cid = cpu_to_le16(scmd_id(cmd));
writecmd->sector_count = cpu_to_le16(count);
writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
writecmd->pad = 0;
writecmd->flags = 0;
ret = aac_build_sg64(cmd, &writecmd->sg);
if (ret < 0)
return ret;
fibsize = sizeof(struct aac_write64) +
((le32_to_cpu(writecmd->sg.count) - 1) *
sizeof (struct sgentry64));
BUG_ON (fibsize > (fib->dev->max_fib_size -
sizeof(struct aac_fibhdr)));
/*
* Now send the Fib to the adapter
*/
return aac_fib_send(ContainerCommand64,
fib,
fibsize,
FsaNormal,
0, 1,
(fib_callback) io_callback,
(void *) cmd);
}
static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
{
u16 fibsize;
struct aac_write *writecmd;
struct aac_dev *dev = fib->dev;
long ret;
aac_fib_init(fib);
writecmd = (struct aac_write *) fib_data(fib);
writecmd->command = cpu_to_le32(VM_CtBlockWrite);
writecmd->cid = cpu_to_le32(scmd_id(cmd));
writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
writecmd->count = cpu_to_le32(count *
dev->fsa_dev[scmd_id(cmd)].block_size);
writecmd->sg.count = cpu_to_le32(1);
/* ->stable is not used - it did mean which type of write */
ret = aac_build_sg(cmd, &writecmd->sg);
if (ret < 0)
return ret;
fibsize = sizeof(struct aac_write) +
((le32_to_cpu(writecmd->sg.count) - 1) *
sizeof (struct sgentry));
BUG_ON (fibsize > (fib->dev->max_fib_size -
sizeof(struct aac_fibhdr)));
/*
* Now send the Fib to the adapter
*/
return aac_fib_send(ContainerCommand,
fib,
fibsize,
FsaNormal,
0, 1,
(fib_callback) io_callback,
(void *) cmd);
}
static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
{
struct aac_srb * srbcmd;
u32 flag;
u32 timeout;
struct aac_dev *dev = fib->dev;
aac_fib_init(fib);
switch(cmd->sc_data_direction){
case DMA_TO_DEVICE:
flag = SRB_DataOut;
break;
case DMA_BIDIRECTIONAL:
flag = SRB_DataIn | SRB_DataOut;
break;
case DMA_FROM_DEVICE:
flag = SRB_DataIn;
break;
case DMA_NONE:
default: /* shuts up some versions of gcc */
flag = SRB_NoDataXfer;
break;
}
srbcmd = (struct aac_srb*) fib_data(fib);
srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
srbcmd->channel = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
srbcmd->id = cpu_to_le32(scmd_id(cmd));
srbcmd->lun = cpu_to_le32(cmd->device->lun);
srbcmd->flags = cpu_to_le32(flag);
timeout = scsi_cmd_to_rq(cmd)->timeout / HZ;
if (timeout == 0)
timeout = (dev->sa_firmware ? AAC_SA_TIMEOUT : AAC_ARC_TIMEOUT);
srbcmd->timeout = cpu_to_le32(timeout); // timeout in seconds
srbcmd->retry_limit = 0; /* Obsolete parameter */
srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
return srbcmd;
}
static struct aac_hba_cmd_req *aac_construct_hbacmd(struct fib *fib,
struct scsi_cmnd *cmd)
{
struct aac_hba_cmd_req *hbacmd;
struct aac_dev *dev;
int bus, target;
u64 address;
dev = (struct aac_dev *)cmd->device->host->hostdata;
hbacmd = (struct aac_hba_cmd_req *)fib->hw_fib_va;
memset(hbacmd, 0, 96); /* sizeof(*hbacmd) is not necessary */
/* iu_type is a parameter of aac_hba_send */
switch (cmd->sc_data_direction) {
case DMA_TO_DEVICE:
hbacmd->byte1 = 2;
break;
case DMA_FROM_DEVICE:
case DMA_BIDIRECTIONAL:
hbacmd->byte1 = 1;
break;
case DMA_NONE:
default:
break;
}
hbacmd->lun[1] = cpu_to_le32(cmd->device->lun);
bus = aac_logical_to_phys(scmd_channel(cmd));
target = scmd_id(cmd);
hbacmd->it_nexus = dev->hba_map[bus][target].rmw_nexus;
/* we fill in reply_qid later in aac_src_deliver_message */
/* we fill in iu_type, request_id later in aac_hba_send */
/* we fill in emb_data_desc_count later in aac_build_sghba */
memcpy(hbacmd->cdb, cmd->cmnd, cmd->cmd_len);
hbacmd->data_length = cpu_to_le32(scsi_bufflen(cmd));
address = (u64)fib->hw_error_pa;
hbacmd->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
hbacmd->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
hbacmd->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
return hbacmd;
}
static void aac_srb_callback(void *context, struct fib * fibptr);
static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
{
u16 fibsize;
struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
long ret;
ret = aac_build_sg64(cmd, (struct sgmap64 *) &srbcmd->sg);
if (ret < 0)
return ret;
srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
/*
* Build Scatter/Gather list
*/
fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
((le32_to_cpu(srbcmd->sg.count) & 0xff) *
sizeof (struct sgentry64));
BUG_ON (fibsize > (fib->dev->max_fib_size -
sizeof(struct aac_fibhdr)));
/*
* Now send the Fib to the adapter
*/
return aac_fib_send(ScsiPortCommand64, fib,
fibsize, FsaNormal, 0, 1,
(fib_callback) aac_srb_callback,
(void *) cmd);
}
static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
{
u16 fibsize;
struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
long ret;
ret = aac_build_sg(cmd, (struct sgmap *)&srbcmd->sg);
if (ret < 0)
return ret;
srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
/*
* Build Scatter/Gather list
*/
fibsize = sizeof (struct aac_srb) +
(((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
sizeof (struct sgentry));
BUG_ON (fibsize > (fib->dev->max_fib_size -
sizeof(struct aac_fibhdr)));
/*
* Now send the Fib to the adapter
*/
return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
(fib_callback) aac_srb_callback, (void *) cmd);
}
static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
{
if ((sizeof(dma_addr_t) > 4) && fib->dev->needs_dac &&
(fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
return FAILED;
return aac_scsi_32(fib, cmd);
}
static int aac_adapter_hba(struct fib *fib, struct scsi_cmnd *cmd)
{
struct aac_hba_cmd_req *hbacmd = aac_construct_hbacmd(fib, cmd);
struct aac_dev *dev;
long ret;
dev = (struct aac_dev *)cmd->device->host->hostdata;
ret = aac_build_sghba(cmd, hbacmd,
dev->scsi_host_ptr->sg_tablesize, (u64)fib->hw_sgl_pa);
if (ret < 0)
return ret;
/*
* Now send the HBA command to the adapter
*/
fib->hbacmd_size = 64 + le32_to_cpu(hbacmd->emb_data_desc_count) *
sizeof(struct aac_hba_sgl);
return aac_hba_send(HBA_IU_TYPE_SCSI_CMD_REQ, fib,
(fib_callback) aac_hba_callback,
(void *) cmd);
}
static int aac_send_safw_bmic_cmd(struct aac_dev *dev,
struct aac_srb_unit *srbu, void *xfer_buf, int xfer_len)
{
struct fib *fibptr;
dma_addr_t addr;
int rcode;
int fibsize;
struct aac_srb *srb;
struct aac_srb_reply *srb_reply;
struct sgmap64 *sg64;
u32 vbus;
u32 vid;
if (!dev->sa_firmware)
return 0;
/* allocate FIB */
fibptr = aac_fib_alloc(dev);
if (!fibptr)
return -ENOMEM;
aac_fib_init(fibptr);
fibptr->hw_fib_va->header.XferState &=
~cpu_to_le32(FastResponseCapable);
fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry) +
sizeof(struct sgentry64);
/* allocate DMA buffer for response */
addr = dma_map_single(&dev->pdev->dev, xfer_buf, xfer_len,
DMA_BIDIRECTIONAL);
if (dma_mapping_error(&dev->pdev->dev, addr)) {
rcode = -ENOMEM;
goto fib_error;
}
srb = fib_data(fibptr);
memcpy(srb, &srbu->srb, sizeof(struct aac_srb));
vbus = (u32)le16_to_cpu(
dev->supplement_adapter_info.virt_device_bus);
vid = (u32)le16_to_cpu(
dev->supplement_adapter_info.virt_device_target);
/* set the common request fields */
srb->channel = cpu_to_le32(vbus);
srb->id = cpu_to_le32(vid);
srb->lun = 0;
srb->function = cpu_to_le32(SRBF_ExecuteScsi);
srb->timeout = 0;
srb->retry_limit = 0;
srb->cdb_size = cpu_to_le32(16);
srb->count = cpu_to_le32(xfer_len);
sg64 = (struct sgmap64 *)&srb->sg;
sg64->count = cpu_to_le32(1);
sg64->sg[0].addr[1] = cpu_to_le32(upper_32_bits(addr));
sg64->sg[0].addr[0] = cpu_to_le32(lower_32_bits(addr));
sg64->sg[0].count = cpu_to_le32(xfer_len);
/*
* Copy the updated data for other dumping or other usage if needed
*/
memcpy(&srbu->srb, srb, sizeof(struct aac_srb));
/* issue request to the controller */
rcode = aac_fib_send(ScsiPortCommand64, fibptr, fibsize, FsaNormal,
1, 1, NULL, NULL);
if (rcode == -ERESTARTSYS)
rcode = -ERESTART;
if (unlikely(rcode < 0))
goto bmic_error;
srb_reply = (struct aac_srb_reply *)fib_data(fibptr);
memcpy(&srbu->srb_reply, srb_reply, sizeof(struct aac_srb_reply));
bmic_error:
dma_unmap_single(&dev->pdev->dev, addr, xfer_len, DMA_BIDIRECTIONAL);
fib_error:
aac_fib_complete(fibptr);
aac_fib_free(fibptr);
return rcode;
}
static void aac_set_safw_target_qd(struct aac_dev *dev, int bus, int target)
{
struct aac_ciss_identify_pd *identify_resp;
if (dev->hba_map[bus][target].devtype != AAC_DEVTYPE_NATIVE_RAW)
return;
identify_resp = dev->hba_map[bus][target].safw_identify_resp;
if (identify_resp == NULL) {
dev->hba_map[bus][target].qd_limit = 32;
return;
}
if (identify_resp->current_queue_depth_limit <= 0 ||
identify_resp->current_queue_depth_limit > 255)
dev->hba_map[bus][target].qd_limit = 32;
else
dev->hba_map[bus][target].qd_limit =
identify_resp->current_queue_depth_limit;
}
static int aac_issue_safw_bmic_identify(struct aac_dev *dev,
struct aac_ciss_identify_pd **identify_resp, u32 bus, u32 target)
{
int rcode = -ENOMEM;
int datasize;
struct aac_srb_unit srbu;
struct aac_srb *srbcmd;
struct aac_ciss_identify_pd *identify_reply;
datasize = sizeof(struct aac_ciss_identify_pd);
identify_reply = kmalloc(datasize, GFP_KERNEL);
if (!identify_reply)
goto out;
memset(&srbu, 0, sizeof(struct aac_srb_unit));
srbcmd = &srbu.srb;
srbcmd->flags = cpu_to_le32(SRB_DataIn);
srbcmd->cdb[0] = 0x26;
srbcmd->cdb[2] = (u8)((AAC_MAX_LUN + target) & 0x00FF);
srbcmd->cdb[6] = CISS_IDENTIFY_PHYSICAL_DEVICE;
rcode = aac_send_safw_bmic_cmd(dev, &srbu, identify_reply, datasize);
if (unlikely(rcode < 0))
goto mem_free_all;
*identify_resp = identify_reply;
out:
return rcode;
mem_free_all:
kfree(identify_reply);
goto out;
}
static inline void aac_free_safw_ciss_luns(struct aac_dev *dev)
{
kfree(dev->safw_phys_luns);
dev->safw_phys_luns = NULL;
}
/**
* aac_get_safw_ciss_luns() - Process topology change
* @dev: aac_dev structure
*
* Execute a CISS REPORT PHYS LUNS and process the results into
* the current hba_map.
*/
static int aac_get_safw_ciss_luns(struct aac_dev *dev)
{
int rcode = -ENOMEM;
int datasize;
struct aac_srb *srbcmd;
struct aac_srb_unit srbu;
struct aac_ciss_phys_luns_resp *phys_luns;
datasize = sizeof(struct aac_ciss_phys_luns_resp) +
(AAC_MAX_TARGETS - 1) * sizeof(struct _ciss_lun);
phys_luns = kmalloc(datasize, GFP_KERNEL);
if (phys_luns == NULL)
goto out;
memset(&srbu, 0, sizeof(struct aac_srb_unit));
srbcmd = &srbu.srb;
srbcmd->flags = cpu_to_le32(SRB_DataIn);
srbcmd->cdb[0] = CISS_REPORT_PHYSICAL_LUNS;
srbcmd->cdb[1] = 2; /* extended reporting */
srbcmd->cdb[8] = (u8)(datasize >> 8);
srbcmd->cdb[9] = (u8)(datasize);
rcode = aac_send_safw_bmic_cmd(dev, &srbu, phys_luns, datasize);
if (unlikely(rcode < 0))
goto mem_free_all;
if (phys_luns->resp_flag != 2) {
rcode = -ENOMSG;
goto mem_free_all;
}
dev->safw_phys_luns = phys_luns;
out:
return rcode;
mem_free_all:
kfree(phys_luns);
goto out;
}
static inline u32 aac_get_safw_phys_lun_count(struct aac_dev *dev)
{
return get_unaligned_be32(&dev->safw_phys_luns->list_length[0])/24;
}
static inline u32 aac_get_safw_phys_bus(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].level2[1] & 0x3f;
}
static inline u32 aac_get_safw_phys_target(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].level2[0];
}
static inline u32 aac_get_safw_phys_expose_flag(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].bus >> 6;
}
static inline u32 aac_get_safw_phys_attribs(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].node_ident[9];
}
static inline u32 aac_get_safw_phys_nexus(struct aac_dev *dev, int lun)
{
return *((u32 *)&dev->safw_phys_luns->lun[lun].node_ident[12]);
}
static inline void aac_free_safw_identify_resp(struct aac_dev *dev,
int bus, int target)
{
kfree(dev->hba_map[bus][target].safw_identify_resp);
dev->hba_map[bus][target].safw_identify_resp = NULL;
}
static inline void aac_free_safw_all_identify_resp(struct aac_dev *dev,
int lun_count)
{
int luns;
int i;
u32 bus;
u32 target;
luns = aac_get_safw_phys_lun_count(dev);
if (luns < lun_count)
lun_count = luns;
else if (lun_count < 0)
lun_count = luns;
for (i = 0; i < lun_count; i++) {
bus = aac_get_safw_phys_bus(dev, i);
target = aac_get_safw_phys_target(dev, i);
aac_free_safw_identify_resp(dev, bus, target);
}
}
static int aac_get_safw_attr_all_targets(struct aac_dev *dev)
{
int i;
int rcode = 0;
u32 lun_count;
u32 bus;
u32 target;
struct aac_ciss_identify_pd *identify_resp = NULL;
lun_count = aac_get_safw_phys_lun_count(dev);
for (i = 0; i < lun_count; ++i) {
bus = aac_get_safw_phys_bus(dev, i);
target = aac_get_safw_phys_target(dev, i);
rcode = aac_issue_safw_bmic_identify(dev,
&identify_resp, bus, target);
if (unlikely(rcode < 0))
goto free_identify_resp;
dev->hba_map[bus][target].safw_identify_resp = identify_resp;
}
out:
return rcode;
free_identify_resp:
aac_free_safw_all_identify_resp(dev, i);
goto out;
}
/**
* aac_set_safw_attr_all_targets- update current hba map with data from FW
* @dev: aac_dev structure
*
* Update our hba map with the information gathered from the FW
*/
static void aac_set_safw_attr_all_targets(struct aac_dev *dev)
{
/* ok and extended reporting */
u32 lun_count, nexus;
u32 i, bus, target;
u8 expose_flag, attribs;
lun_count = aac_get_safw_phys_lun_count(dev);
dev->scan_counter++;
for (i = 0; i < lun_count; ++i) {
bus = aac_get_safw_phys_bus(dev, i);
target = aac_get_safw_phys_target(dev, i);
expose_flag = aac_get_safw_phys_expose_flag(dev, i);
attribs = aac_get_safw_phys_attribs(dev, i);
nexus = aac_get_safw_phys_nexus(dev, i);
if (bus >= AAC_MAX_BUSES || target >= AAC_MAX_TARGETS)
continue;
if (expose_flag != 0) {
dev->hba_map[bus][target].devtype =
AAC_DEVTYPE_RAID_MEMBER;
continue;
}
if (nexus != 0 && (attribs & 8)) {
dev->hba_map[bus][target].devtype =
AAC_DEVTYPE_NATIVE_RAW;
dev->hba_map[bus][target].rmw_nexus =
nexus;
} else
dev->hba_map[bus][target].devtype =
AAC_DEVTYPE_ARC_RAW;
dev->hba_map[bus][target].scan_counter = dev->scan_counter;
aac_set_safw_target_qd(dev, bus, target);
}
}
static int aac_setup_safw_targets(struct aac_dev *dev)
{
int rcode = 0;
rcode = aac_get_containers(dev);
if (unlikely(rcode < 0))
goto out;
rcode = aac_get_safw_ciss_luns(dev);
if (unlikely(rcode < 0))
goto out;
rcode = aac_get_safw_attr_all_targets(dev);
if (unlikely(rcode < 0))
goto free_ciss_luns;
aac_set_safw_attr_all_targets(dev);
aac_free_safw_all_identify_resp(dev, -1);
free_ciss_luns:
aac_free_safw_ciss_luns(dev);
out:
return rcode;
}
int aac_setup_safw_adapter(struct aac_dev *dev)
{
return aac_setup_safw_targets(dev);
}
int aac_get_adapter_info(struct aac_dev* dev)
{
struct fib* fibptr;
int rcode;
u32 tmp, bus, target;
struct aac_adapter_info *info;
struct aac_bus_info *command;
struct aac_bus_info_response *bus_info;
if (!(fibptr = aac_fib_alloc(dev)))
return -ENOMEM;
aac_fib_init(fibptr);
info = (struct aac_adapter_info *) fib_data(fibptr);
memset(info,0,sizeof(*info));
rcode = aac_fib_send(RequestAdapterInfo,
fibptr,
sizeof(*info),
FsaNormal,
-1, 1, /* First `interrupt' command uses special wait */
NULL,
NULL);
if (rcode < 0) {
/* FIB should be freed only after
* getting the response from the F/W */
if (rcode != -ERESTARTSYS) {
aac_fib_complete(fibptr);
aac_fib_free(fibptr);
}
return rcode;
}
memcpy(&dev->adapter_info, info, sizeof(*info));
dev->supplement_adapter_info.virt_device_bus = 0xffff;
if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
struct aac_supplement_adapter_info * sinfo;
aac_fib_init(fibptr);
sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
memset(sinfo,0,sizeof(*sinfo));
rcode = aac_fib_send(RequestSupplementAdapterInfo,
fibptr,
sizeof(*sinfo),
FsaNormal,
1, 1,
NULL,
NULL);
if (rcode >= 0)
memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
if (rcode == -ERESTARTSYS) {
fibptr = aac_fib_alloc(dev);
if (!fibptr)
return -ENOMEM;
}
}
/* reset all previous mapped devices (i.e. for init. after IOP_RESET) */
for (bus = 0; bus < AAC_MAX_BUSES; bus++) {
for (target = 0; target < AAC_MAX_TARGETS; target++) {
dev->hba_map[bus][target].devtype = 0;
dev->hba_map[bus][target].qd_limit = 0;
}
}
/*
* GetBusInfo
*/
aac_fib_init(fibptr);
bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
memset(bus_info, 0, sizeof(*bus_info));
command = (struct aac_bus_info *)bus_info;
command->Command = cpu_to_le32(VM_Ioctl);
command->ObjType = cpu_to_le32(FT_DRIVE);
command->MethodId = cpu_to_le32(1);
command->CtlCmd = cpu_to_le32(GetBusInfo);
rcode = aac_fib_send(ContainerCommand,
fibptr,
sizeof (*bus_info),
FsaNormal,
1, 1,
NULL, NULL);
/* reasoned default */
dev->maximum_num_physicals = 16;
if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
}
if (!dev->in_reset) {
char buffer[16];
tmp = le32_to_cpu(dev->adapter_info.kernelrev);
printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
dev->name,
dev->id,
tmp>>24,
(tmp>>16)&0xff,
tmp&0xff,
le32_to_cpu(dev->adapter_info.kernelbuild),
(int)sizeof(dev->supplement_adapter_info.build_date),
dev->supplement_adapter_info.build_date);
tmp = le32_to_cpu(dev->adapter_info.monitorrev);
printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
dev->name, dev->id,
tmp>>24,(tmp>>16)&0xff,tmp&0xff,
le32_to_cpu(dev->adapter_info.monitorbuild));
tmp = le32_to_cpu(dev->adapter_info.biosrev);
printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
dev->name, dev->id,
tmp>>24,(tmp>>16)&0xff,tmp&0xff,
le32_to_cpu(dev->adapter_info.biosbuild));
buffer[0] = '\0';
if (aac_get_serial_number(
shost_to_class(dev->scsi_host_ptr), buffer))
printk(KERN_INFO "%s%d: serial %s",
dev->name, dev->id, buffer);
if (dev->supplement_adapter_info.vpd_info.tsid[0]) {
printk(KERN_INFO "%s%d: TSID %.*s\n",
dev->name, dev->id,
(int)sizeof(dev->supplement_adapter_info
.vpd_info.tsid),
dev->supplement_adapter_info.vpd_info.tsid);
}
if (!aac_check_reset || ((aac_check_reset == 1) &&
(dev->supplement_adapter_info.supported_options2 &
AAC_OPTION_IGNORE_RESET))) {
printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
dev->name, dev->id);
}
}
dev->cache_protected = 0;
dev->jbod = ((dev->supplement_adapter_info.feature_bits &
AAC_FEATURE_JBOD) != 0);
dev->nondasd_support = 0;
dev->raid_scsi_mode = 0;
if(dev->adapter_info.options & AAC_OPT_NONDASD)
dev->nondasd_support = 1;
/*
* If the firmware supports ROMB RAID/SCSI mode and we are currently
* in RAID/SCSI mode, set the flag. For now if in this mode we will
* force nondasd support on. If we decide to allow the non-dasd flag
* additional changes changes will have to be made to support
* RAID/SCSI. the function aac_scsi_cmd in this module will have to be
* changed to support the new dev->raid_scsi_mode flag instead of
* leaching off of the dev->nondasd_support flag. Also in linit.c the
* function aac_detect will have to be modified where it sets up the
* max number of channels based on the aac->nondasd_support flag only.
*/
if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
(dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
dev->nondasd_support = 1;
dev->raid_scsi_mode = 1;
}
if (dev->raid_scsi_mode != 0)
printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
dev->name, dev->id);
if (nondasd != -1)
dev->nondasd_support = (nondasd!=0);
if (dev->nondasd_support && !dev->in_reset)
printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
if (dma_get_required_mask(&dev->pdev->dev) > DMA_BIT_MASK(32))
dev->needs_dac = 1;
dev->dac_support = 0;
if ((sizeof(dma_addr_t) > 4) && dev->needs_dac &&
(dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)) {
if (!dev->in_reset)
printk(KERN_INFO "%s%d: 64bit support enabled.\n",
dev->name, dev->id);
dev->dac_support = 1;
}
if(dacmode != -1) {
dev->dac_support = (dacmode!=0);
}
/* avoid problems with AAC_QUIRK_SCSI_32 controllers */
if (dev->dac_support && (aac_get_driver_ident(dev->cardtype)->quirks
& AAC_QUIRK_SCSI_32)) {
dev->nondasd_support = 0;
dev->jbod = 0;
expose_physicals = 0;
}
if (dev->dac_support) {
if (!dma_set_mask(&dev->pdev->dev, DMA_BIT_MASK(64))) {
if (!dev->in_reset)
dev_info(&dev->pdev->dev, "64 Bit DAC enabled\n");
} else if (!dma_set_mask(&dev->pdev->dev, DMA_BIT_MASK(32))) {
dev_info(&dev->pdev->dev, "DMA mask set failed, 64 Bit DAC disabled\n");
dev->dac_support = 0;
} else {
dev_info(&dev->pdev->dev, "No suitable DMA available\n");
rcode = -ENOMEM;
}
}
/*
* Deal with configuring for the individualized limits of each packet
* interface.
*/
dev->a_ops.adapter_scsi = (dev->dac_support)
? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
? aac_scsi_32_64
: aac_scsi_64)
: aac_scsi_32;
if (dev->raw_io_interface) {
dev->a_ops.adapter_bounds = (dev->raw_io_64)
? aac_bounds_64
: aac_bounds_32;
dev->a_ops.adapter_read = aac_read_raw_io;
dev->a_ops.adapter_write = aac_write_raw_io;
} else {
dev->a_ops.adapter_bounds = aac_bounds_32;
dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
sizeof(struct aac_fibhdr) -
sizeof(struct aac_write) + sizeof(struct sgentry)) /
sizeof(struct sgentry);
if (dev->dac_support) {
dev->a_ops.adapter_read = aac_read_block64;
dev->a_ops.adapter_write = aac_write_block64;
/*
* 38 scatter gather elements
*/
dev->scsi_host_ptr->sg_tablesize =
(dev->max_fib_size -
sizeof(struct aac_fibhdr) -
sizeof(struct aac_write64) +
sizeof(struct sgentry64)) /
sizeof(struct sgentry64);
} else {
dev->a_ops.adapter_read = aac_read_block;
dev->a_ops.adapter_write = aac_write_block;
}
dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
if (!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
/*
* Worst case size that could cause sg overflow when
* we break up SG elements that are larger than 64KB.
* Would be nice if we could tell the SCSI layer what
* the maximum SG element size can be. Worst case is
* (sg_tablesize-1) 4KB elements with one 64KB
* element.
* 32bit -> 468 or 238KB 64bit -> 424 or 212KB
*/
dev->scsi_host_ptr->max_sectors =
(dev->scsi_host_ptr->sg_tablesize * 8) + 112;
}
}
if (!dev->sync_mode && dev->sa_firmware &&
dev->scsi_host_ptr->sg_tablesize > HBA_MAX_SG_SEPARATE)
dev->scsi_host_ptr->sg_tablesize = dev->sg_tablesize =
HBA_MAX_SG_SEPARATE;
/* FIB should be freed only after getting the response from the F/W */
if (rcode != -ERESTARTSYS) {
aac_fib_complete(fibptr);
aac_fib_free(fibptr);
}
return rcode;
}
static void io_callback(void *context, struct fib * fibptr)
{
struct aac_dev *dev;
struct aac_read_reply *readreply;
struct scsi_cmnd *scsicmd;
u32 cid;
scsicmd = (struct scsi_cmnd *) context;
if (!aac_valid_context(scsicmd, fibptr))
return;
dev = fibptr->dev;
cid = scmd_id(scsicmd);
if (nblank(dprintk(x))) {
u64 lba;
switch (scsicmd->cmnd[0]) {
case WRITE_6:
case READ_6:
lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
(scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
break;
case WRITE_16:
case READ_16:
lba = ((u64)scsicmd->cmnd[2] << 56) |
((u64)scsicmd->cmnd[3] << 48) |
((u64)scsicmd->cmnd[4] << 40) |
((u64)scsicmd->cmnd[5] << 32) |
((u64)scsicmd->cmnd[6] << 24) |
(scsicmd->cmnd[7] << 16) |
(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
break;
case WRITE_12:
case READ_12:
lba = ((u64)scsicmd->cmnd[2] << 24) |
(scsicmd->cmnd[3] << 16) |
(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
break;
default:
lba = ((u64)scsicmd->cmnd[2] << 24) |
(scsicmd->cmnd[3] << 16) |
(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
break;
}
printk(KERN_DEBUG
"io_callback[cpu %d]: lba = %llu, t = %ld.\n",
smp_processor_id(), (unsigned long long)lba, jiffies);
}
BUG_ON(fibptr == NULL);
scsi_dma_unmap(scsicmd);
readreply = (struct aac_read_reply *)fib_data(fibptr);
switch (le32_to_cpu(readreply->status)) {
case ST_OK:
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
dev->fsa_dev[cid].sense_data.sense_key = NO_SENSE;
break;
case ST_NOT_READY:
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data, NOT_READY,
SENCODE_BECOMING_READY, ASENCODE_BECOMING_READY, 0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
break;
case ST_MEDERR:
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data, MEDIUM_ERROR,
SENCODE_UNRECOVERED_READ_ERROR, ASENCODE_NO_SENSE, 0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
break;
default:
#ifdef AAC_DETAILED_STATUS_INFO
printk(KERN_WARNING "io_callback: io failed, status = %d\n",
le32_to_cpu(readreply->status));
#endif
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
break;
}
aac_fib_complete(fibptr);
aac_scsi_done(scsicmd);
}
static int aac_read(struct scsi_cmnd * scsicmd)
{
u64 lba;
u32 count;
int status;
struct aac_dev *dev;
struct fib * cmd_fibcontext;
int cid;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
/*
* Get block address and transfer length
*/
switch (scsicmd->cmnd[0]) {
case READ_6:
dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
(scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
count = scsicmd->cmnd[4];
if (count == 0)
count = 256;
break;
case READ_16:
dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
lba = ((u64)scsicmd->cmnd[2] << 56) |
((u64)scsicmd->cmnd[3] << 48) |
((u64)scsicmd->cmnd[4] << 40) |
((u64)scsicmd->cmnd[5] << 32) |
((u64)scsicmd->cmnd[6] << 24) |
(scsicmd->cmnd[7] << 16) |
(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
count = (scsicmd->cmnd[10] << 24) |
(scsicmd->cmnd[11] << 16) |
(scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
break;
case READ_12:
dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
lba = ((u64)scsicmd->cmnd[2] << 24) |
(scsicmd->cmnd[3] << 16) |
(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
count = (scsicmd->cmnd[6] << 24) |
(scsicmd->cmnd[7] << 16) |
(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
break;
default:
dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
lba = ((u64)scsicmd->cmnd[2] << 24) |
(scsicmd->cmnd[3] << 16) |
(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
break;
}
if ((lba + count) > (dev->fsa_dev[scmd_id(scsicmd)].size)) {
cid = scmd_id(scsicmd);
dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
ILLEGAL_REQUEST, SENCODE_LBA_OUT_OF_RANGE,
ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
aac_scsi_done(scsicmd);
return 0;
}
dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
smp_processor_id(), (unsigned long long)lba, jiffies));
if (aac_adapter_bounds(dev,scsicmd,lba))
return 0;
/*
* Alocate and initialize a Fib
*/
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
/*
* For some reason, the Fib didn't queue, return QUEUE_FULL
*/
scsicmd->result = DID_OK << 16 | SAM_STAT_TASK_SET_FULL;
aac_scsi_done(scsicmd);
aac_fib_complete(cmd_fibcontext);
aac_fib_free(cmd_fibcontext);
return 0;
}
static int aac_write(struct scsi_cmnd * scsicmd)
{
u64 lba;
u32 count;
int fua;
int status;
struct aac_dev *dev;
struct fib * cmd_fibcontext;
int cid;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
/*
* Get block address and transfer length
*/
if (scsicmd->cmnd[0] == WRITE_6) /* 6 byte command */
{
lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
count = scsicmd->cmnd[4];
if (count == 0)
count = 256;
fua = 0;
} else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
lba = ((u64)scsicmd->cmnd[2] << 56) |
((u64)scsicmd->cmnd[3] << 48) |
((u64)scsicmd->cmnd[4] << 40) |
((u64)scsicmd->cmnd[5] << 32) |
((u64)scsicmd->cmnd[6] << 24) |
(scsicmd->cmnd[7] << 16) |
(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
(scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
fua = scsicmd->cmnd[1] & 0x8;
} else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
| (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
| (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
fua = scsicmd->cmnd[1] & 0x8;
} else {
dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
fua = scsicmd->cmnd[1] & 0x8;
}
if ((lba + count) > (dev->fsa_dev[scmd_id(scsicmd)].size)) {
cid = scmd_id(scsicmd);
dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
ILLEGAL_REQUEST, SENCODE_LBA_OUT_OF_RANGE,
ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
aac_scsi_done(scsicmd);
return 0;
}
dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
smp_processor_id(), (unsigned long long)lba, jiffies));
if (aac_adapter_bounds(dev,scsicmd,lba))
return 0;
/*
* Allocate and initialize a Fib then setup a BlockWrite command
*/
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
/*
* For some reason, the Fib didn't queue, return QUEUE_FULL
*/
scsicmd->result = DID_OK << 16 | SAM_STAT_TASK_SET_FULL;
aac_scsi_done(scsicmd);
aac_fib_complete(cmd_fibcontext);
aac_fib_free(cmd_fibcontext);
return 0;
}
static void synchronize_callback(void *context, struct fib *fibptr)
{
struct aac_synchronize_reply *synchronizereply;
struct scsi_cmnd *cmd = context;
if (!aac_valid_context(cmd, fibptr))
return;
dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
smp_processor_id(), jiffies));
BUG_ON(fibptr == NULL);
synchronizereply = fib_data(fibptr);
if (le32_to_cpu(synchronizereply->status) == CT_OK)
cmd->result = DID_OK << 16 | SAM_STAT_GOOD;
else {
struct scsi_device *sdev = cmd->device;
struct aac_dev *dev = fibptr->dev;
u32 cid = sdev_id(sdev);
printk(KERN_WARNING
"synchronize_callback: synchronize failed, status = %d\n",
le32_to_cpu(synchronizereply->status));
cmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
}
aac_fib_complete(fibptr);
aac_fib_free(fibptr);
aac_scsi_done(cmd);
}
static int aac_synchronize(struct scsi_cmnd *scsicmd)
{
int status;
struct fib *cmd_fibcontext;
struct aac_synchronize *synchronizecmd;
struct scsi_device *sdev = scsicmd->device;
struct aac_dev *aac;
aac = (struct aac_dev *)sdev->host->hostdata;
if (aac->in_reset)
return SCSI_MLQUEUE_HOST_BUSY;
/*
* Allocate and initialize a Fib
*/
cmd_fibcontext = aac_fib_alloc_tag(aac, scsicmd);
aac_fib_init(cmd_fibcontext);
synchronizecmd = fib_data(cmd_fibcontext);
synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
synchronizecmd->count =
cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
/*
* Now send the Fib to the adapter
*/
status = aac_fib_send(ContainerCommand,
cmd_fibcontext,
sizeof(struct aac_synchronize),
FsaNormal,
0, 1,
(fib_callback)synchronize_callback,
(void *)scsicmd);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
printk(KERN_WARNING
"aac_synchronize: aac_fib_send failed with status: %d.\n", status);
aac_fib_complete(cmd_fibcontext);
aac_fib_free(cmd_fibcontext);
return SCSI_MLQUEUE_HOST_BUSY;
}
static void aac_start_stop_callback(void *context, struct fib *fibptr)
{
struct scsi_cmnd *scsicmd = context;
if (!aac_valid_context(scsicmd, fibptr))
return;
BUG_ON(fibptr == NULL);
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
aac_fib_complete(fibptr);
aac_fib_free(fibptr);
aac_scsi_done(scsicmd);
}
static int aac_start_stop(struct scsi_cmnd *scsicmd)
{
int status;
struct fib *cmd_fibcontext;
struct aac_power_management *pmcmd;
struct scsi_device *sdev = scsicmd->device;
struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
if (!(aac->supplement_adapter_info.supported_options2 &
AAC_OPTION_POWER_MANAGEMENT)) {
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
aac_scsi_done(scsicmd);
return 0;
}
if (aac->in_reset)
return SCSI_MLQUEUE_HOST_BUSY;
/*
* Allocate and initialize a Fib
*/
cmd_fibcontext = aac_fib_alloc_tag(aac, scsicmd);
aac_fib_init(cmd_fibcontext);
pmcmd = fib_data(cmd_fibcontext);
pmcmd->command = cpu_to_le32(VM_ContainerConfig);
pmcmd->type = cpu_to_le32(CT_POWER_MANAGEMENT);
/* Eject bit ignored, not relevant */
pmcmd->sub = (scsicmd->cmnd[4] & 1) ?
cpu_to_le32(CT_PM_START_UNIT) : cpu_to_le32(CT_PM_STOP_UNIT);
pmcmd->cid = cpu_to_le32(sdev_id(sdev));
pmcmd->parm = (scsicmd->cmnd[1] & 1) ?
cpu_to_le32(CT_PM_UNIT_IMMEDIATE) : 0;
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
/*
* Now send the Fib to the adapter
*/
status = aac_fib_send(ContainerCommand,
cmd_fibcontext,
sizeof(struct aac_power_management),
FsaNormal,
0, 1,
(fib_callback)aac_start_stop_callback,
(void *)scsicmd);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
aac_fib_complete(cmd_fibcontext);
aac_fib_free(cmd_fibcontext);
return SCSI_MLQUEUE_HOST_BUSY;
}
/**
* aac_scsi_cmd() - Process SCSI command
* @scsicmd: SCSI command block
*
* Emulate a SCSI command and queue the required request for the
* aacraid firmware.
*/
int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
{
u32 cid, bus;
struct Scsi_Host *host = scsicmd->device->host;
struct aac_dev *dev = (struct aac_dev *)host->hostdata;
struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
if (fsa_dev_ptr == NULL)
return -1;
/*
* If the bus, id or lun is out of range, return fail
* Test does not apply to ID 16, the pseudo id for the controller
* itself.
*/
cid = scmd_id(scsicmd);
if (cid != host->this_id) {
if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
if((cid >= dev->maximum_num_containers) ||
(scsicmd->device->lun != 0)) {
scsicmd->result = DID_NO_CONNECT << 16;
goto scsi_done_ret;
}
/*
* If the target container doesn't exist, it may have
* been newly created
*/
if (((fsa_dev_ptr[cid].valid & 1) == 0) ||
(fsa_dev_ptr[cid].sense_data.sense_key ==
NOT_READY)) {
switch (scsicmd->cmnd[0]) {
case SERVICE_ACTION_IN_16:
if (!(dev->raw_io_interface) ||
!(dev->raw_io_64) ||
((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
break;
fallthrough;
case INQUIRY:
case READ_CAPACITY:
case TEST_UNIT_READY:
if (dev->in_reset)
return -1;
return _aac_probe_container(scsicmd,
aac_probe_container_callback2);
default:
break;
}
}
} else { /* check for physical non-dasd devices */
bus = aac_logical_to_phys(scmd_channel(scsicmd));
if (bus < AAC_MAX_BUSES && cid < AAC_MAX_TARGETS &&
dev->hba_map[bus][cid].devtype
== AAC_DEVTYPE_NATIVE_RAW) {
if (dev->in_reset)
return -1;
return aac_send_hba_fib(scsicmd);
} else if (dev->nondasd_support || expose_physicals ||
dev->jbod) {
if (dev->in_reset)
return -1;
return aac_send_srb_fib(scsicmd);
} else {
scsicmd->result = DID_NO_CONNECT << 16;
goto scsi_done_ret;
}
}
}
/*
* else Command for the controller itself
*/
else if ((scsicmd->cmnd[0] != INQUIRY) && /* only INQUIRY & TUR cmnd supported for controller */
(scsicmd->cmnd[0] != TEST_UNIT_READY))
{
dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
ASENCODE_INVALID_COMMAND, 0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
goto scsi_done_ret;
}
switch (scsicmd->cmnd[0]) {
case READ_6:
case READ_10:
case READ_12:
case READ_16:
if (dev->in_reset)
return -1;
return aac_read(scsicmd);
case WRITE_6:
case WRITE_10:
case WRITE_12:
case WRITE_16:
if (dev->in_reset)
return -1;
return aac_write(scsicmd);
case SYNCHRONIZE_CACHE:
if (((aac_cache & 6) == 6) && dev->cache_protected) {
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
}
/* Issue FIB to tell Firmware to flush it's cache */
if ((aac_cache & 6) != 2)
return aac_synchronize(scsicmd);
fallthrough;
case INQUIRY:
{
struct inquiry_data inq_data;
dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
memset(&inq_data, 0, sizeof (struct inquiry_data));
if ((scsicmd->cmnd[1] & 0x1) && aac_wwn) {
char *arr = (char *)&inq_data;
/* EVPD bit set */
arr[0] = (scmd_id(scsicmd) == host->this_id) ?
INQD_PDT_PROC : INQD_PDT_DA;
if (scsicmd->cmnd[2] == 0) {
/* supported vital product data pages */
arr[3] = 3;
arr[4] = 0x0;
arr[5] = 0x80;
arr[6] = 0x83;
arr[1] = scsicmd->cmnd[2];
scsi_sg_copy_from_buffer(scsicmd, &inq_data,
sizeof(inq_data));
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
} else if (scsicmd->cmnd[2] == 0x80) {
/* unit serial number page */
arr[3] = setinqserial(dev, &arr[4],
scmd_id(scsicmd));
arr[1] = scsicmd->cmnd[2];
scsi_sg_copy_from_buffer(scsicmd, &inq_data,
sizeof(inq_data));
if (aac_wwn != 2)
return aac_get_container_serial(
scsicmd);
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
} else if (scsicmd->cmnd[2] == 0x83) {
/* vpd page 0x83 - Device Identification Page */
char *sno = (char *)&inq_data;
sno[3] = setinqserial(dev, &sno[4],
scmd_id(scsicmd));
if (aac_wwn != 2)
return aac_get_container_serial(
scsicmd);
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
} else {
/* vpd page not implemented */
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
ILLEGAL_REQUEST, SENCODE_INVALID_CDB_FIELD,
ASENCODE_NO_SENSE, 7, 2);
memcpy(scsicmd->sense_buffer,
&dev->fsa_dev[cid].sense_data,
min_t(size_t,
sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
}
break;
}
inq_data.inqd_ver = 2; /* claim compliance to SCSI-2 */
inq_data.inqd_rdf = 2; /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
inq_data.inqd_len = 31;
/*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
inq_data.inqd_pad2= 0x32 ; /*WBus16|Sync|CmdQue */
/*
* Set the Vendor, Product, and Revision Level
* see: <vendor>.c i.e. aac.c
*/
if (cid == host->this_id) {
setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
inq_data.inqd_pdt = INQD_PDT_PROC; /* Processor device */
scsi_sg_copy_from_buffer(scsicmd, &inq_data,
sizeof(inq_data));
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
}
if (dev->in_reset)
return -1;
setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
inq_data.inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
return aac_get_container_name(scsicmd);
}
case SERVICE_ACTION_IN_16:
if (!(dev->raw_io_interface) ||
!(dev->raw_io_64) ||
((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
break;
{
u64 capacity;
char cp[13];
unsigned int alloc_len;
dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
capacity = fsa_dev_ptr[cid].size - 1;
cp[0] = (capacity >> 56) & 0xff;
cp[1] = (capacity >> 48) & 0xff;
cp[2] = (capacity >> 40) & 0xff;
cp[3] = (capacity >> 32) & 0xff;
cp[4] = (capacity >> 24) & 0xff;
cp[5] = (capacity >> 16) & 0xff;
cp[6] = (capacity >> 8) & 0xff;
cp[7] = (capacity >> 0) & 0xff;
cp[8] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
cp[9] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
cp[10] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
cp[11] = (fsa_dev_ptr[cid].block_size) & 0xff;
cp[12] = 0;
alloc_len = ((scsicmd->cmnd[10] << 24)
+ (scsicmd->cmnd[11] << 16)
+ (scsicmd->cmnd[12] << 8) + scsicmd->cmnd[13]);
alloc_len = min_t(size_t, alloc_len, sizeof(cp));
scsi_sg_copy_from_buffer(scsicmd, cp, alloc_len);
if (alloc_len < scsi_bufflen(scsicmd))
scsi_set_resid(scsicmd,
scsi_bufflen(scsicmd) - alloc_len);
/* Do not cache partition table for arrays */
scsicmd->device->removable = 1;
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
}
case READ_CAPACITY:
{
u32 capacity;
char cp[8];
dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
capacity = fsa_dev_ptr[cid].size - 1;
else
capacity = (u32)-1;
cp[0] = (capacity >> 24) & 0xff;
cp[1] = (capacity >> 16) & 0xff;
cp[2] = (capacity >> 8) & 0xff;
cp[3] = (capacity >> 0) & 0xff;
cp[4] = (fsa_dev_ptr[cid].block_size >> 24) & 0xff;
cp[5] = (fsa_dev_ptr[cid].block_size >> 16) & 0xff;
cp[6] = (fsa_dev_ptr[cid].block_size >> 8) & 0xff;
cp[7] = (fsa_dev_ptr[cid].block_size) & 0xff;
scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
/* Do not cache partition table for arrays */
scsicmd->device->removable = 1;
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
}
case MODE_SENSE:
{
int mode_buf_length = 4;
u32 capacity;
aac_modep_data mpd;
if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
capacity = fsa_dev_ptr[cid].size - 1;
else
capacity = (u32)-1;
dprintk((KERN_DEBUG "MODE SENSE command.\n"));
memset((char *)&mpd, 0, sizeof(aac_modep_data));
/* Mode data length */
mpd.hd.data_length = sizeof(mpd.hd) - 1;
/* Medium type - default */
mpd.hd.med_type = 0;
/* Device-specific param,
bit 8: 0/1 = write enabled/protected
bit 4: 0/1 = FUA enabled */
mpd.hd.dev_par = 0;
if (dev->raw_io_interface && ((aac_cache & 5) != 1))
mpd.hd.dev_par = 0x10;
if (scsicmd->cmnd[1] & 0x8)
mpd.hd.bd_length = 0; /* Block descriptor length */
else {
mpd.hd.bd_length = sizeof(mpd.bd);
mpd.hd.data_length += mpd.hd.bd_length;
mpd.bd.block_length[0] =
(fsa_dev_ptr[cid].block_size >> 16) & 0xff;
mpd.bd.block_length[1] =
(fsa_dev_ptr[cid].block_size >> 8) & 0xff;
mpd.bd.block_length[2] =
fsa_dev_ptr[cid].block_size & 0xff;
mpd.mpc_buf[0] = scsicmd->cmnd[2];
if (scsicmd->cmnd[2] == 0x1C) {
/* page length */
mpd.mpc_buf[1] = 0xa;
/* Mode data length */
mpd.hd.data_length = 23;
} else {
/* Mode data length */
mpd.hd.data_length = 15;
}
if (capacity > 0xffffff) {
mpd.bd.block_count[0] = 0xff;
mpd.bd.block_count[1] = 0xff;
mpd.bd.block_count[2] = 0xff;
} else {
mpd.bd.block_count[0] = (capacity >> 16) & 0xff;
mpd.bd.block_count[1] = (capacity >> 8) & 0xff;
mpd.bd.block_count[2] = capacity & 0xff;
}
}
if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
mpd.hd.data_length += 3;
mpd.mpc_buf[0] = 8;
mpd.mpc_buf[1] = 1;
mpd.mpc_buf[2] = ((aac_cache & 6) == 2)
? 0 : 0x04; /* WCE */
mode_buf_length = sizeof(mpd);
}
if (mode_buf_length > scsicmd->cmnd[4])
mode_buf_length = scsicmd->cmnd[4];
else
mode_buf_length = sizeof(mpd);
scsi_sg_copy_from_buffer(scsicmd,
(char *)&mpd,
mode_buf_length);
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
}
case MODE_SENSE_10:
{
u32 capacity;
int mode_buf_length = 8;
aac_modep10_data mpd10;
if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
capacity = fsa_dev_ptr[cid].size - 1;
else
capacity = (u32)-1;
dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
memset((char *)&mpd10, 0, sizeof(aac_modep10_data));
/* Mode data length (MSB) */
mpd10.hd.data_length[0] = 0;
/* Mode data length (LSB) */
mpd10.hd.data_length[1] = sizeof(mpd10.hd) - 1;
/* Medium type - default */
mpd10.hd.med_type = 0;
/* Device-specific param,
bit 8: 0/1 = write enabled/protected
bit 4: 0/1 = FUA enabled */
mpd10.hd.dev_par = 0;
if (dev->raw_io_interface && ((aac_cache & 5) != 1))
mpd10.hd.dev_par = 0x10;
mpd10.hd.rsrvd[0] = 0; /* reserved */
mpd10.hd.rsrvd[1] = 0; /* reserved */
if (scsicmd->cmnd[1] & 0x8) {
/* Block descriptor length (MSB) */
mpd10.hd.bd_length[0] = 0;
/* Block descriptor length (LSB) */
mpd10.hd.bd_length[1] = 0;
} else {
mpd10.hd.bd_length[0] = 0;
mpd10.hd.bd_length[1] = sizeof(mpd10.bd);
mpd10.hd.data_length[1] += mpd10.hd.bd_length[1];
mpd10.bd.block_length[0] =
(fsa_dev_ptr[cid].block_size >> 16) & 0xff;
mpd10.bd.block_length[1] =
(fsa_dev_ptr[cid].block_size >> 8) & 0xff;
mpd10.bd.block_length[2] =
fsa_dev_ptr[cid].block_size & 0xff;
if (capacity > 0xffffff) {
mpd10.bd.block_count[0] = 0xff;
mpd10.bd.block_count[1] = 0xff;
mpd10.bd.block_count[2] = 0xff;
} else {
mpd10.bd.block_count[0] =
(capacity >> 16) & 0xff;
mpd10.bd.block_count[1] =
(capacity >> 8) & 0xff;
mpd10.bd.block_count[2] =
capacity & 0xff;
}
}
if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
mpd10.hd.data_length[1] += 3;
mpd10.mpc_buf[0] = 8;
mpd10.mpc_buf[1] = 1;
mpd10.mpc_buf[2] = ((aac_cache & 6) == 2)
? 0 : 0x04; /* WCE */
mode_buf_length = sizeof(mpd10);
if (mode_buf_length > scsicmd->cmnd[8])
mode_buf_length = scsicmd->cmnd[8];
}
scsi_sg_copy_from_buffer(scsicmd,
(char *)&mpd10,
mode_buf_length);
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
}
case REQUEST_SENSE:
dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
sizeof(struct sense_data));
memset(&dev->fsa_dev[cid].sense_data, 0,
sizeof(struct sense_data));
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
case ALLOW_MEDIUM_REMOVAL:
dprintk((KERN_DEBUG "LOCK command.\n"));
if (scsicmd->cmnd[4])
fsa_dev_ptr[cid].locked = 1;
else
fsa_dev_ptr[cid].locked = 0;
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
/*
* These commands are all No-Ops
*/
case TEST_UNIT_READY:
if (fsa_dev_ptr[cid].sense_data.sense_key == NOT_READY) {
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
NOT_READY, SENCODE_BECOMING_READY,
ASENCODE_BECOMING_READY, 0, 0);
memcpy(scsicmd->sense_buffer,
&dev->fsa_dev[cid].sense_data,
min_t(size_t,
sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
break;
}
fallthrough;
case RESERVE:
case RELEASE:
case REZERO_UNIT:
case REASSIGN_BLOCKS:
case SEEK_10:
scsicmd->result = DID_OK << 16 | SAM_STAT_GOOD;
break;
case START_STOP:
return aac_start_stop(scsicmd);
default:
/*
* Unhandled commands
*/
dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n",
scsicmd->cmnd[0]));
scsicmd->result = DID_OK << 16 | SAM_STAT_CHECK_CONDITION;
set_sense(&dev->fsa_dev[cid].sense_data,
ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
ASENCODE_INVALID_COMMAND, 0, 0);
memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
min_t(size_t,
sizeof(dev->fsa_dev[cid].sense_data),
SCSI_SENSE_BUFFERSIZE));
}
scsi_done_ret:
aac_scsi_done(scsicmd);
return 0;
}
static int query_disk(struct aac_dev *dev, void __user *arg)
{
struct aac_query_disk qd;
struct fsa_dev_info *fsa_dev_ptr;
fsa_dev_ptr = dev->fsa_dev;
if (!fsa_dev_ptr)
return -EBUSY;
if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
return -EFAULT;
if (qd.cnum == -1) {
if (qd.id < 0 || qd.id >= dev->maximum_num_containers)
return -EINVAL;
qd.cnum = qd.id;
} else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1)) {
if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
return -EINVAL;
qd.instance = dev->scsi_host_ptr->host_no;
qd.bus = 0;
qd.id = CONTAINER_TO_ID(qd.cnum);
qd.lun = CONTAINER_TO_LUN(qd.cnum);
}
else return -EINVAL;
qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
qd.locked = fsa_dev_ptr[qd.cnum].locked;
qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
qd.unmapped = 1;
else
qd.unmapped = 0;
strscpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
return -EFAULT;
return 0;
}
static int force_delete_disk(struct aac_dev *dev, void __user *arg)
{
struct aac_delete_disk dd;
struct fsa_dev_info *fsa_dev_ptr;
fsa_dev_ptr = dev->fsa_dev;
if (!fsa_dev_ptr)
return -EBUSY;
if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
return -EFAULT;
if (dd.cnum >= dev->maximum_num_containers)
return -EINVAL;
/*
* Mark this container as being deleted.
*/
fsa_dev_ptr[dd.cnum].deleted = 1;
/*
* Mark the container as no longer valid
*/
fsa_dev_ptr[dd.cnum].valid = 0;
return 0;
}
static int delete_disk(struct aac_dev *dev, void __user *arg)
{
struct aac_delete_disk dd;
struct fsa_dev_info *fsa_dev_ptr;
fsa_dev_ptr = dev->fsa_dev;
if (!fsa_dev_ptr)
return -EBUSY;
if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
return -EFAULT;
if (dd.cnum >= dev->maximum_num_containers)
return -EINVAL;
/*
* If the container is locked, it can not be deleted by the API.
*/
if (fsa_dev_ptr[dd.cnum].locked)
return -EBUSY;
else {
/*
* Mark the container as no longer being valid.
*/
fsa_dev_ptr[dd.cnum].valid = 0;
fsa_dev_ptr[dd.cnum].devname[0] = '\0';
return 0;
}
}
int aac_dev_ioctl(struct aac_dev *dev, unsigned int cmd, void __user *arg)
{
switch (cmd) {
case FSACTL_QUERY_DISK:
return query_disk(dev, arg);
case FSACTL_DELETE_DISK:
return delete_disk(dev, arg);
case FSACTL_FORCE_DELETE_DISK:
return force_delete_disk(dev, arg);
case FSACTL_GET_CONTAINERS:
return aac_get_containers(dev);
default:
return -ENOTTY;
}
}
/**
* aac_srb_callback
* @context: the context set in the fib - here it is scsi cmd
* @fibptr: pointer to the fib
*
* Handles the completion of a scsi command to a non dasd device
*/
static void aac_srb_callback(void *context, struct fib * fibptr)
{
struct aac_srb_reply *srbreply;
struct scsi_cmnd *scsicmd;
scsicmd = (struct scsi_cmnd *) context;
if (!aac_valid_context(scsicmd, fibptr))
return;
BUG_ON(fibptr == NULL);
srbreply = (struct aac_srb_reply *) fib_data(fibptr);
scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
if (fibptr->flags & FIB_CONTEXT_FLAG_FASTRESP) {
/* fast response */
srbreply->srb_status = cpu_to_le32(SRB_STATUS_SUCCESS);
srbreply->scsi_status = cpu_to_le32(SAM_STAT_GOOD);
} else {
/*
* Calculate resid for sg
*/
scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
- le32_to_cpu(srbreply->data_xfer_length));
}
scsi_dma_unmap(scsicmd);
/* expose physical device if expose_physicald flag is on */
if (scsicmd->cmnd[0] == INQUIRY && !(scsicmd->cmnd[1] & 0x01)
&& expose_physicals > 0)
aac_expose_phy_device(scsicmd);
/*
* First check the fib status
*/
if (le32_to_cpu(srbreply->status) != ST_OK) {
int len;
pr_warn("aac_srb_callback: srb failed, status = %d\n",
le32_to_cpu(srbreply->status));
len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
SCSI_SENSE_BUFFERSIZE);
scsicmd->result = DID_ERROR << 16 | SAM_STAT_CHECK_CONDITION;
memcpy(scsicmd->sense_buffer,
srbreply->sense_data, len);
}
/*
* Next check the srb status
*/
switch ((le32_to_cpu(srbreply->srb_status))&0x3f) {
case SRB_STATUS_ERROR_RECOVERY:
case SRB_STATUS_PENDING:
case SRB_STATUS_SUCCESS:
scsicmd->result = DID_OK << 16;
break;
case SRB_STATUS_DATA_OVERRUN:
switch (scsicmd->cmnd[0]) {
case READ_6:
case WRITE_6:
case READ_10:
case WRITE_10:
case READ_12:
case WRITE_12:
case READ_16:
case WRITE_16:
if (le32_to_cpu(srbreply->data_xfer_length)
< scsicmd->underflow)
pr_warn("aacraid: SCSI CMD underflow\n");
else
pr_warn("aacraid: SCSI CMD Data Overrun\n");
scsicmd->result = DID_ERROR << 16;
break;
case INQUIRY:
scsicmd->result = DID_OK << 16;
break;
default:
scsicmd->result = DID_OK << 16;
break;
}
break;
case SRB_STATUS_ABORTED:
scsicmd->result = DID_ABORT << 16;
break;
case SRB_STATUS_ABORT_FAILED:
/*
* Not sure about this one - but assuming the
* hba was trying to abort for some reason
*/
scsicmd->result = DID_ERROR << 16;
break;
case SRB_STATUS_PARITY_ERROR:
scsicmd->result = DID_PARITY << 16;
break;
case SRB_STATUS_NO_DEVICE:
case SRB_STATUS_INVALID_PATH_ID:
case SRB_STATUS_INVALID_TARGET_ID:
case SRB_STATUS_INVALID_LUN:
case SRB_STATUS_SELECTION_TIMEOUT:
scsicmd->result = DID_NO_CONNECT << 16;
break;
case SRB_STATUS_COMMAND_TIMEOUT:
case SRB_STATUS_TIMEOUT:
scsicmd->result = DID_TIME_OUT << 16;
break;
case SRB_STATUS_BUSY:
scsicmd->result = DID_BUS_BUSY << 16;
break;
case SRB_STATUS_BUS_RESET:
scsicmd->result = DID_RESET << 16;
break;
case SRB_STATUS_MESSAGE_REJECTED:
scsicmd->result = DID_ERROR << 16;
break;
case SRB_STATUS_REQUEST_FLUSHED:
case SRB_STATUS_ERROR:
case SRB_STATUS_INVALID_REQUEST:
case SRB_STATUS_REQUEST_SENSE_FAILED:
case SRB_STATUS_NO_HBA:
case SRB_STATUS_UNEXPECTED_BUS_FREE:
case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
case SRB_STATUS_DELAYED_RETRY:
case SRB_STATUS_BAD_FUNCTION:
case SRB_STATUS_NOT_STARTED:
case SRB_STATUS_NOT_IN_USE:
case SRB_STATUS_FORCE_ABORT:
case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
default:
#ifdef AAC_DETAILED_STATUS_INFO
pr_info("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x -scsi status 0x%x\n",
le32_to_cpu(srbreply->srb_status) & 0x3F,
aac_get_status_string(
le32_to_cpu(srbreply->srb_status) & 0x3F),
scsicmd->cmnd[0],
le32_to_cpu(srbreply->scsi_status));
#endif
/*
* When the CC bit is SET by the host in ATA pass thru CDB,
* driver is supposed to return DID_OK
*
* When the CC bit is RESET by the host, driver should
* return DID_ERROR
*/
if ((scsicmd->cmnd[0] == ATA_12)
|| (scsicmd->cmnd[0] == ATA_16)) {
if (scsicmd->cmnd[2] & (0x01 << 5)) {
scsicmd->result = DID_OK << 16;
} else {
scsicmd->result = DID_ERROR << 16;
}
} else {
scsicmd->result = DID_ERROR << 16;
}
break;
}
if (le32_to_cpu(srbreply->scsi_status)
== SAM_STAT_CHECK_CONDITION) {
int len;
scsicmd->result |= SAM_STAT_CHECK_CONDITION;
len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
SCSI_SENSE_BUFFERSIZE);
#ifdef AAC_DETAILED_STATUS_INFO
pr_warn("aac_srb_callback: check condition, status = %d len=%d\n",
le32_to_cpu(srbreply->status), len);
#endif
memcpy(scsicmd->sense_buffer,
srbreply->sense_data, len);
}
/*
* OR in the scsi status (already shifted up a bit)
*/
scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
aac_fib_complete(fibptr);
aac_scsi_done(scsicmd);
}
static void hba_resp_task_complete(struct aac_dev *dev,
struct scsi_cmnd *scsicmd,
struct aac_hba_resp *err) {
scsicmd->result = err->status;
/* set residual count */
scsi_set_resid(scsicmd, le32_to_cpu(err->residual_count));
switch (err->status) {
case SAM_STAT_GOOD:
scsicmd->result |= DID_OK << 16;
break;
case SAM_STAT_CHECK_CONDITION:
{
int len;
len = min_t(u8, err->sense_response_data_len,
SCSI_SENSE_BUFFERSIZE);
if (len)
memcpy(scsicmd->sense_buffer,
err->sense_response_buf, len);
scsicmd->result |= DID_OK << 16;
break;
}
case SAM_STAT_BUSY:
scsicmd->result |= DID_BUS_BUSY << 16;
break;
case SAM_STAT_TASK_ABORTED:
scsicmd->result |= DID_ABORT << 16;
break;
case SAM_STAT_RESERVATION_CONFLICT:
case SAM_STAT_TASK_SET_FULL:
default:
scsicmd->result |= DID_ERROR << 16;
break;
}
}
static void hba_resp_task_failure(struct aac_dev *dev,
struct scsi_cmnd *scsicmd,
struct aac_hba_resp *err)
{
switch (err->status) {
case HBA_RESP_STAT_HBAMODE_DISABLED:
{
u32 bus, cid;
bus = aac_logical_to_phys(scmd_channel(scsicmd));
cid = scmd_id(scsicmd);
if (dev->hba_map[bus][cid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
dev->hba_map[bus][cid].devtype = AAC_DEVTYPE_ARC_RAW;
dev->hba_map[bus][cid].rmw_nexus = 0xffffffff;
}
scsicmd->result = DID_NO_CONNECT << 16;
break;
}
case HBA_RESP_STAT_IO_ERROR:
case HBA_RESP_STAT_NO_PATH_TO_DEVICE:
scsicmd->result = DID_OK << 16 | SAM_STAT_BUSY;
break;
case HBA_RESP_STAT_IO_ABORTED:
scsicmd->result = DID_ABORT << 16;
break;
case HBA_RESP_STAT_INVALID_DEVICE:
scsicmd->result = DID_NO_CONNECT << 16;
break;
case HBA_RESP_STAT_UNDERRUN:
/* UNDERRUN is OK */
scsicmd->result = DID_OK << 16;
break;
case HBA_RESP_STAT_OVERRUN:
default:
scsicmd->result = DID_ERROR << 16;
break;
}
}
/**
* aac_hba_callback
* @context: the context set in the fib - here it is scsi cmd
* @fibptr: pointer to the fib
*
* Handles the completion of a native HBA scsi command
*/
void aac_hba_callback(void *context, struct fib *fibptr)
{
struct aac_dev *dev;
struct scsi_cmnd *scsicmd;
struct aac_hba_resp *err =
&((struct aac_native_hba *)fibptr->hw_fib_va)->resp.err;
scsicmd = (struct scsi_cmnd *) context;
if (!aac_valid_context(scsicmd, fibptr))
return;
WARN_ON(fibptr == NULL);
dev = fibptr->dev;
if (!(fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF))
scsi_dma_unmap(scsicmd);
if (fibptr->flags & FIB_CONTEXT_FLAG_FASTRESP) {
/* fast response */
scsicmd->result = DID_OK << 16;
goto out;
}
switch (err->service_response) {
case HBA_RESP_SVCRES_TASK_COMPLETE:
hba_resp_task_complete(dev, scsicmd, err);
break;
case HBA_RESP_SVCRES_FAILURE:
hba_resp_task_failure(dev, scsicmd, err);
break;
case HBA_RESP_SVCRES_TMF_REJECTED:
scsicmd->result = DID_ERROR << 16;
break;
case HBA_RESP_SVCRES_TMF_LUN_INVALID:
scsicmd->result = DID_NO_CONNECT << 16;
break;
case HBA_RESP_SVCRES_TMF_COMPLETE:
case HBA_RESP_SVCRES_TMF_SUCCEEDED:
scsicmd->result = DID_OK << 16;
break;
default:
scsicmd->result = DID_ERROR << 16;
break;
}
out:
aac_fib_complete(fibptr);
if (fibptr->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF)
aac_priv(scsicmd)->sent_command = 1;
else
aac_scsi_done(scsicmd);
}
/**
* aac_send_srb_fib
* @scsicmd: the scsi command block
*
* This routine will form a FIB and fill in the aac_srb from the
* scsicmd passed in.
*/
static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
{
struct fib* cmd_fibcontext;
struct aac_dev* dev;
int status;
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
scsicmd->device->lun > 7) {
scsicmd->result = DID_NO_CONNECT << 16;
aac_scsi_done(scsicmd);
return 0;
}
/*
* Allocate and initialize a Fib then setup a BlockWrite command
*/
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
aac_fib_complete(cmd_fibcontext);
aac_fib_free(cmd_fibcontext);
return -1;
}
/**
* aac_send_hba_fib
* @scsicmd: the scsi command block
*
* This routine will form a FIB and fill in the aac_hba_cmd_req from the
* scsicmd passed in.
*/
static int aac_send_hba_fib(struct scsi_cmnd *scsicmd)
{
struct fib *cmd_fibcontext;
struct aac_dev *dev;
int status;
dev = shost_priv(scsicmd->device->host);
if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
scsicmd->device->lun > AAC_MAX_LUN - 1) {
scsicmd->result = DID_NO_CONNECT << 16;
aac_scsi_done(scsicmd);
return 0;
}
/*
* Allocate and initialize a Fib then setup a BlockWrite command
*/
cmd_fibcontext = aac_fib_alloc_tag(dev, scsicmd);
if (!cmd_fibcontext)
return -1;
aac_priv(scsicmd)->owner = AAC_OWNER_FIRMWARE;
status = aac_adapter_hba(cmd_fibcontext, scsicmd);
/*
* Check that the command queued to the controller
*/
if (status == -EINPROGRESS)
return 0;
pr_warn("aac_hba_cmd_req: aac_fib_send failed with status: %d\n",
status);
aac_fib_complete(cmd_fibcontext);
aac_fib_free(cmd_fibcontext);
return -1;
}
static long aac_build_sg(struct scsi_cmnd *scsicmd, struct sgmap *psg)
{
unsigned long byte_count = 0;
int nseg;
struct scatterlist *sg;
int i;
// Get rid of old data
psg->count = 0;
psg->sg[0].addr = 0;
psg->sg[0].count = 0;
nseg = scsi_dma_map(scsicmd);
if (nseg <= 0)
return nseg;
psg->count = cpu_to_le32(nseg);
scsi_for_each_sg(scsicmd, sg, nseg, i) {
psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
byte_count += sg_dma_len(sg);
}
/* hba wants the size to be exact */
if (byte_count > scsi_bufflen(scsicmd)) {
u32 temp = le32_to_cpu(psg->sg[i-1].count) -
(byte_count - scsi_bufflen(scsicmd));
psg->sg[i-1].count = cpu_to_le32(temp);
byte_count = scsi_bufflen(scsicmd);
}
/* Check for command underflow */
if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
byte_count, scsicmd->underflow);
}
return byte_count;
}
static long aac_build_sg64(struct scsi_cmnd *scsicmd, struct sgmap64 *psg)
{
unsigned long byte_count = 0;
u64 addr;
int nseg;
struct scatterlist *sg;
int i;
// Get rid of old data
psg->count = 0;
psg->sg[0].addr[0] = 0;
psg->sg[0].addr[1] = 0;
psg->sg[0].count = 0;
nseg = scsi_dma_map(scsicmd);
if (nseg <= 0)
return nseg;
scsi_for_each_sg(scsicmd, sg, nseg, i) {
int count = sg_dma_len(sg);
addr = sg_dma_address(sg);
psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
psg->sg[i].count = cpu_to_le32(count);
byte_count += count;
}
psg->count = cpu_to_le32(nseg);
/* hba wants the size to be exact */
if (byte_count > scsi_bufflen(scsicmd)) {
u32 temp = le32_to_cpu(psg->sg[i-1].count) -
(byte_count - scsi_bufflen(scsicmd));
psg->sg[i-1].count = cpu_to_le32(temp);
byte_count = scsi_bufflen(scsicmd);
}
/* Check for command underflow */
if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
byte_count, scsicmd->underflow);
}
return byte_count;
}
static long aac_build_sgraw(struct scsi_cmnd *scsicmd, struct sgmapraw *psg)
{
unsigned long byte_count = 0;
int nseg;
struct scatterlist *sg;
int i;
// Get rid of old data
psg->count = 0;
psg->sg[0].next = 0;
psg->sg[0].prev = 0;
psg->sg[0].addr[0] = 0;
psg->sg[0].addr[1] = 0;
psg->sg[0].count = 0;
psg->sg[0].flags = 0;
nseg = scsi_dma_map(scsicmd);
if (nseg <= 0)
return nseg;
scsi_for_each_sg(scsicmd, sg, nseg, i) {
int count = sg_dma_len(sg);
u64 addr = sg_dma_address(sg);
psg->sg[i].next = 0;
psg->sg[i].prev = 0;
psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
psg->sg[i].count = cpu_to_le32(count);
psg->sg[i].flags = 0;
byte_count += count;
}
psg->count = cpu_to_le32(nseg);
/* hba wants the size to be exact */
if (byte_count > scsi_bufflen(scsicmd)) {
u32 temp = le32_to_cpu(psg->sg[i-1].count) -
(byte_count - scsi_bufflen(scsicmd));
psg->sg[i-1].count = cpu_to_le32(temp);
byte_count = scsi_bufflen(scsicmd);
}
/* Check for command underflow */
if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
byte_count, scsicmd->underflow);
}
return byte_count;
}
static long aac_build_sgraw2(struct scsi_cmnd *scsicmd,
struct aac_raw_io2 *rio2, int sg_max)
{
unsigned long byte_count = 0;
int nseg;
struct scatterlist *sg;
int i, conformable = 0;
u32 min_size = PAGE_SIZE, cur_size;
nseg = scsi_dma_map(scsicmd);
if (nseg <= 0)
return nseg;
scsi_for_each_sg(scsicmd, sg, nseg, i) {
int count = sg_dma_len(sg);
u64 addr = sg_dma_address(sg);
BUG_ON(i >= sg_max);
rio2->sge[i].addrHigh = cpu_to_le32((u32)(addr>>32));
rio2->sge[i].addrLow = cpu_to_le32((u32)(addr & 0xffffffff));
cur_size = cpu_to_le32(count);
rio2->sge[i].length = cur_size;
rio2->sge[i].flags = 0;
if (i == 0) {
conformable = 1;
rio2->sgeFirstSize = cur_size;
} else if (i == 1) {
rio2->sgeNominalSize = cur_size;
min_size = cur_size;
} else if ((i+1) < nseg && cur_size != rio2->sgeNominalSize) {
conformable = 0;
if (cur_size < min_size)
min_size = cur_size;
}
byte_count += count;
}
/* hba wants the size to be exact */
if (byte_count > scsi_bufflen(scsicmd)) {
u32 temp = le32_to_cpu(rio2->sge[i-1].length) -
(byte_count - scsi_bufflen(scsicmd));
rio2->sge[i-1].length = cpu_to_le32(temp);
byte_count = scsi_bufflen(scsicmd);
}
rio2->sgeCnt = cpu_to_le32(nseg);
rio2->flags |= cpu_to_le16(RIO2_SG_FORMAT_IEEE1212);
/* not conformable: evaluate required sg elements */
if (!conformable) {
int j, nseg_new = nseg, err_found;
for (i = min_size / PAGE_SIZE; i >= 1; --i) {
err_found = 0;
nseg_new = 2;
for (j = 1; j < nseg - 1; ++j) {
if (rio2->sge[j].length % (i*PAGE_SIZE)) {
err_found = 1;
break;
}
nseg_new += (rio2->sge[j].length / (i*PAGE_SIZE));
}
if (!err_found)
break;
}
if (i > 0 && nseg_new <= sg_max) {
int ret = aac_convert_sgraw2(rio2, i, nseg, nseg_new);
if (ret < 0)
return ret;
}
} else
rio2->flags |= cpu_to_le16(RIO2_SGL_CONFORMANT);
/* Check for command underflow */
if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
byte_count, scsicmd->underflow);
}
return byte_count;
}
static int aac_convert_sgraw2(struct aac_raw_io2 *rio2, int pages, int nseg, int nseg_new)
{
struct sge_ieee1212 *sge;
int i, j, pos;
u32 addr_low;
if (aac_convert_sgl == 0)
return 0;
sge = kmalloc_array(nseg_new, sizeof(*sge), GFP_ATOMIC);
if (sge == NULL)
return -ENOMEM;
for (i = 1, pos = 1; i < nseg-1; ++i) {
for (j = 0; j < rio2->sge[i].length / (pages * PAGE_SIZE); ++j) {
addr_low = rio2->sge[i].addrLow + j * pages * PAGE_SIZE;
sge[pos].addrLow = addr_low;
sge[pos].addrHigh = rio2->sge[i].addrHigh;
if (addr_low < rio2->sge[i].addrLow)
sge[pos].addrHigh++;
sge[pos].length = pages * PAGE_SIZE;
sge[pos].flags = 0;
pos++;
}
}
sge[pos] = rio2->sge[nseg-1];
memcpy(&rio2->sge[1], &sge[1], (nseg_new-1)*sizeof(struct sge_ieee1212));
kfree(sge);
rio2->sgeCnt = cpu_to_le32(nseg_new);
rio2->flags |= cpu_to_le16(RIO2_SGL_CONFORMANT);
rio2->sgeNominalSize = pages * PAGE_SIZE;
return 0;
}
static long aac_build_sghba(struct scsi_cmnd *scsicmd,
struct aac_hba_cmd_req *hbacmd,
int sg_max,
u64 sg_address)
{
unsigned long byte_count = 0;
int nseg;
struct scatterlist *sg;
int i;
u32 cur_size;
struct aac_hba_sgl *sge;
nseg = scsi_dma_map(scsicmd);
if (nseg <= 0) {
byte_count = nseg;
goto out;
}
if (nseg > HBA_MAX_SG_EMBEDDED)
sge = &hbacmd->sge[2];
else
sge = &hbacmd->sge[0];
scsi_for_each_sg(scsicmd, sg, nseg, i) {
int count = sg_dma_len(sg);
u64 addr = sg_dma_address(sg);
WARN_ON(i >= sg_max);
sge->addr_hi = cpu_to_le32((u32)(addr>>32));
sge->addr_lo = cpu_to_le32((u32)(addr & 0xffffffff));
cur_size = cpu_to_le32(count);
sge->len = cur_size;
sge->flags = 0;
byte_count += count;
sge++;
}
sge--;
/* hba wants the size to be exact */
if (byte_count > scsi_bufflen(scsicmd)) {
u32 temp;
temp = le32_to_cpu(sge->len) - byte_count
- scsi_bufflen(scsicmd);
sge->len = cpu_to_le32(temp);
byte_count = scsi_bufflen(scsicmd);
}
if (nseg <= HBA_MAX_SG_EMBEDDED) {
hbacmd->emb_data_desc_count = cpu_to_le32(nseg);
sge->flags = cpu_to_le32(0x40000000);
} else {
/* not embedded */
hbacmd->sge[0].flags = cpu_to_le32(0x80000000);
hbacmd->emb_data_desc_count = (u8)cpu_to_le32(1);
hbacmd->sge[0].addr_hi = (u32)cpu_to_le32(sg_address >> 32);
hbacmd->sge[0].addr_lo =
cpu_to_le32((u32)(sg_address & 0xffffffff));
}
/* Check for command underflow */
if (scsicmd->underflow && (byte_count < scsicmd->underflow)) {
pr_warn("aacraid: cmd len %08lX cmd underflow %08X\n",
byte_count, scsicmd->underflow);
}
out:
return byte_count;
}
#ifdef AAC_DETAILED_STATUS_INFO
struct aac_srb_status_info {
u32 status;
char *str;
};
static struct aac_srb_status_info srb_status_info[] = {
{ SRB_STATUS_PENDING, "Pending Status"},
{ SRB_STATUS_SUCCESS, "Success"},
{ SRB_STATUS_ABORTED, "Aborted Command"},
{ SRB_STATUS_ABORT_FAILED, "Abort Failed"},
{ SRB_STATUS_ERROR, "Error Event"},
{ SRB_STATUS_BUSY, "Device Busy"},
{ SRB_STATUS_INVALID_REQUEST, "Invalid Request"},
{ SRB_STATUS_INVALID_PATH_ID, "Invalid Path ID"},
{ SRB_STATUS_NO_DEVICE, "No Device"},
{ SRB_STATUS_TIMEOUT, "Timeout"},
{ SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
{ SRB_STATUS_COMMAND_TIMEOUT, "Command Timeout"},
{ SRB_STATUS_MESSAGE_REJECTED, "Message Rejected"},
{ SRB_STATUS_BUS_RESET, "Bus Reset"},
{ SRB_STATUS_PARITY_ERROR, "Parity Error"},
{ SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
{ SRB_STATUS_NO_HBA, "No HBA"},
{ SRB_STATUS_DATA_OVERRUN, "Data Overrun/Data Underrun"},
{ SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
{ SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
{ SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
{ SRB_STATUS_REQUEST_FLUSHED, "Request Flushed"},
{ SRB_STATUS_DELAYED_RETRY, "Delayed Retry"},
{ SRB_STATUS_INVALID_LUN, "Invalid LUN"},
{ SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
{ SRB_STATUS_BAD_FUNCTION, "Bad Function"},
{ SRB_STATUS_ERROR_RECOVERY, "Error Recovery"},
{ SRB_STATUS_NOT_STARTED, "Not Started"},
{ SRB_STATUS_NOT_IN_USE, "Not In Use"},
{ SRB_STATUS_FORCE_ABORT, "Force Abort"},
{ SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
{ 0xff, "Unknown Error"}
};
char *aac_get_status_string(u32 status)
{
int i;
for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
if (srb_status_info[i].status == status)
return srb_status_info[i].str;
return "Bad Status Code";
}
#endif
|
linux-master
|
drivers/scsi/aacraid/aachba.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* nark.c
*
* Abstract: Hardware Device Interface for NEMER/ARK
*/
#include <linux/pci.h>
#include <linux/blkdev.h>
#include <scsi/scsi_host.h>
#include "aacraid.h"
/**
* aac_nark_ioremap
* @dev: device to ioremap
* @size: mapping resize request
*
*/
static int aac_nark_ioremap(struct aac_dev * dev, u32 size)
{
if (!size) {
iounmap(dev->regs.rx);
dev->regs.rx = NULL;
iounmap(dev->base);
dev->base = NULL;
return 0;
}
dev->base_start = pci_resource_start(dev->pdev, 2);
dev->regs.rx = ioremap((u64)pci_resource_start(dev->pdev, 0) |
((u64)pci_resource_start(dev->pdev, 1) << 32),
sizeof(struct rx_registers) - sizeof(struct rx_inbound));
dev->base = NULL;
if (dev->regs.rx == NULL)
return -1;
dev->base = ioremap(dev->base_start, size);
if (dev->base == NULL) {
iounmap(dev->regs.rx);
dev->regs.rx = NULL;
return -1;
}
dev->IndexRegs = &((struct rx_registers __iomem *)dev->base)->IndexRegs;
return 0;
}
/**
* aac_nark_init - initialize an NEMER/ARK Split Bar card
* @dev: device to configure
*
*/
int aac_nark_init(struct aac_dev * dev)
{
/*
* Fill in the function dispatch table.
*/
dev->a_ops.adapter_ioremap = aac_nark_ioremap;
dev->a_ops.adapter_comm = aac_rx_select_comm;
return _aac_rx_init(dev);
}
|
linux-master
|
drivers/scsi/aacraid/nark.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* dpcsup.c
*
* Abstract: All DPC processing routines for the cyclone board occur here.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/blkdev.h>
#include "aacraid.h"
/**
* aac_response_normal - Handle command replies
* @q: Queue to read from
*
* This DPC routine will be run when the adapter interrupts us to let us
* know there is a response on our normal priority queue. We will pull off
* all QE there are and wake up all the waiters before exiting. We will
* take a spinlock out on the queue before operating on it.
*/
unsigned int aac_response_normal(struct aac_queue * q)
{
struct aac_dev * dev = q->dev;
struct aac_entry *entry;
struct hw_fib * hwfib;
struct fib * fib;
int consumed = 0;
unsigned long flags, mflags;
spin_lock_irqsave(q->lock, flags);
/*
* Keep pulling response QEs off the response queue and waking
* up the waiters until there are no more QEs. We then return
* back to the system. If no response was requested we just
* deallocate the Fib here and continue.
*/
while(aac_consumer_get(dev, q, &entry))
{
int fast;
u32 index = le32_to_cpu(entry->addr);
fast = index & 0x01;
fib = &dev->fibs[index >> 2];
hwfib = fib->hw_fib_va;
aac_consumer_free(dev, q, HostNormRespQueue);
/*
* Remove this fib from the Outstanding I/O queue.
* But only if it has not already been timed out.
*
* If the fib has been timed out already, then just
* continue. The caller has already been notified that
* the fib timed out.
*/
atomic_dec(&dev->queues->queue[AdapNormCmdQueue].numpending);
if (unlikely(fib->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) {
spin_unlock_irqrestore(q->lock, flags);
aac_fib_complete(fib);
aac_fib_free(fib);
spin_lock_irqsave(q->lock, flags);
continue;
}
spin_unlock_irqrestore(q->lock, flags);
if (fast) {
/*
* Doctor the fib
*/
*(__le32 *)hwfib->data = cpu_to_le32(ST_OK);
hwfib->header.XferState |= cpu_to_le32(AdapterProcessed);
fib->flags |= FIB_CONTEXT_FLAG_FASTRESP;
}
FIB_COUNTER_INCREMENT(aac_config.FibRecved);
if (hwfib->header.Command == cpu_to_le16(NuFileSystem))
{
__le32 *pstatus = (__le32 *)hwfib->data;
if (*pstatus & cpu_to_le32(0xffff0000))
*pstatus = cpu_to_le32(ST_OK);
}
if (hwfib->header.XferState & cpu_to_le32(NoResponseExpected | Async))
{
if (hwfib->header.XferState & cpu_to_le32(NoResponseExpected)) {
FIB_COUNTER_INCREMENT(aac_config.NoResponseRecved);
} else {
FIB_COUNTER_INCREMENT(aac_config.AsyncRecved);
}
/*
* NOTE: we cannot touch the fib after this
* call, because it may have been deallocated.
*/
fib->callback(fib->callback_data, fib);
} else {
unsigned long flagv;
spin_lock_irqsave(&fib->event_lock, flagv);
if (!fib->done) {
fib->done = 1;
complete(&fib->event_wait);
}
spin_unlock_irqrestore(&fib->event_lock, flagv);
spin_lock_irqsave(&dev->manage_lock, mflags);
dev->management_fib_count--;
spin_unlock_irqrestore(&dev->manage_lock, mflags);
FIB_COUNTER_INCREMENT(aac_config.NormalRecved);
if (fib->done == 2) {
spin_lock_irqsave(&fib->event_lock, flagv);
fib->done = 0;
spin_unlock_irqrestore(&fib->event_lock, flagv);
aac_fib_complete(fib);
aac_fib_free(fib);
}
}
consumed++;
spin_lock_irqsave(q->lock, flags);
}
if (consumed > aac_config.peak_fibs)
aac_config.peak_fibs = consumed;
if (consumed == 0)
aac_config.zero_fibs++;
spin_unlock_irqrestore(q->lock, flags);
return 0;
}
/**
* aac_command_normal - handle commands
* @q: queue to process
*
* This DPC routine will be queued when the adapter interrupts us to
* let us know there is a command on our normal priority queue. We will
* pull off all QE there are and wake up all the waiters before exiting.
* We will take a spinlock out on the queue before operating on it.
*/
unsigned int aac_command_normal(struct aac_queue *q)
{
struct aac_dev * dev = q->dev;
struct aac_entry *entry;
unsigned long flags;
spin_lock_irqsave(q->lock, flags);
/*
* Keep pulling response QEs off the response queue and waking
* up the waiters until there are no more QEs. We then return
* back to the system.
*/
while(aac_consumer_get(dev, q, &entry))
{
struct fib fibctx;
struct hw_fib * hw_fib;
u32 index;
struct fib *fib = &fibctx;
index = le32_to_cpu(entry->addr) / sizeof(struct hw_fib);
hw_fib = &dev->aif_base_va[index];
/*
* Allocate a FIB at all costs. For non queued stuff
* we can just use the stack so we are happy. We need
* a fib object in order to manage the linked lists
*/
if (dev->aif_thread)
if((fib = kmalloc(sizeof(struct fib), GFP_ATOMIC)) == NULL)
fib = &fibctx;
memset(fib, 0, sizeof(struct fib));
INIT_LIST_HEAD(&fib->fiblink);
fib->type = FSAFS_NTC_FIB_CONTEXT;
fib->size = sizeof(struct fib);
fib->hw_fib_va = hw_fib;
fib->data = hw_fib->data;
fib->dev = dev;
if (dev->aif_thread && fib != &fibctx) {
list_add_tail(&fib->fiblink, &q->cmdq);
aac_consumer_free(dev, q, HostNormCmdQueue);
wake_up_interruptible(&q->cmdready);
} else {
aac_consumer_free(dev, q, HostNormCmdQueue);
spin_unlock_irqrestore(q->lock, flags);
/*
* Set the status of this FIB
*/
*(__le32 *)hw_fib->data = cpu_to_le32(ST_OK);
aac_fib_adapter_complete(fib, sizeof(u32));
spin_lock_irqsave(q->lock, flags);
}
}
spin_unlock_irqrestore(q->lock, flags);
return 0;
}
/*
*
* aac_aif_callback
* @context: the context set in the fib - here it is scsi cmd
* @fibptr: pointer to the fib
*
* Handles the AIFs - new method (SRC)
*
*/
static void aac_aif_callback(void *context, struct fib * fibptr)
{
struct fib *fibctx;
struct aac_dev *dev;
struct aac_aifcmd *cmd;
fibctx = (struct fib *)context;
BUG_ON(fibptr == NULL);
dev = fibptr->dev;
if ((fibptr->hw_fib_va->header.XferState &
cpu_to_le32(NoMoreAifDataAvailable)) ||
dev->sa_firmware) {
aac_fib_complete(fibptr);
aac_fib_free(fibptr);
return;
}
aac_intr_normal(dev, 0, 1, 0, fibptr->hw_fib_va);
aac_fib_init(fibctx);
cmd = (struct aac_aifcmd *) fib_data(fibctx);
cmd->command = cpu_to_le32(AifReqEvent);
aac_fib_send(AifRequest,
fibctx,
sizeof(struct hw_fib)-sizeof(struct aac_fibhdr),
FsaNormal,
0, 1,
(fib_callback)aac_aif_callback, fibctx);
}
/*
* aac_intr_normal - Handle command replies
* @dev: Device
* @index: completion reference
*
* This DPC routine will be run when the adapter interrupts us to let us
* know there is a response on our normal priority queue. We will pull off
* all QE there are and wake up all the waiters before exiting.
*/
unsigned int aac_intr_normal(struct aac_dev *dev, u32 index, int isAif,
int isFastResponse, struct hw_fib *aif_fib)
{
unsigned long mflags;
dprintk((KERN_INFO "aac_intr_normal(%p,%x)\n", dev, index));
if (isAif == 1) { /* AIF - common */
struct hw_fib * hw_fib;
struct fib * fib;
struct aac_queue *q = &dev->queues->queue[HostNormCmdQueue];
unsigned long flags;
/*
* Allocate a FIB. For non queued stuff we can just use
* the stack so we are happy. We need a fib object in order to
* manage the linked lists.
*/
if ((!dev->aif_thread)
|| (!(fib = kzalloc(sizeof(struct fib),GFP_ATOMIC))))
return 1;
if (!(hw_fib = kzalloc(sizeof(struct hw_fib),GFP_ATOMIC))) {
kfree (fib);
return 1;
}
if (dev->sa_firmware) {
fib->hbacmd_size = index; /* store event type */
} else if (aif_fib != NULL) {
memcpy(hw_fib, aif_fib, sizeof(struct hw_fib));
} else {
memcpy(hw_fib, (struct hw_fib *)
(((uintptr_t)(dev->regs.sa)) + index),
sizeof(struct hw_fib));
}
INIT_LIST_HEAD(&fib->fiblink);
fib->type = FSAFS_NTC_FIB_CONTEXT;
fib->size = sizeof(struct fib);
fib->hw_fib_va = hw_fib;
fib->data = hw_fib->data;
fib->dev = dev;
spin_lock_irqsave(q->lock, flags);
list_add_tail(&fib->fiblink, &q->cmdq);
wake_up_interruptible(&q->cmdready);
spin_unlock_irqrestore(q->lock, flags);
return 1;
} else if (isAif == 2) { /* AIF - new (SRC) */
struct fib *fibctx;
struct aac_aifcmd *cmd;
fibctx = aac_fib_alloc(dev);
if (!fibctx)
return 1;
aac_fib_init(fibctx);
cmd = (struct aac_aifcmd *) fib_data(fibctx);
cmd->command = cpu_to_le32(AifReqEvent);
return aac_fib_send(AifRequest,
fibctx,
sizeof(struct hw_fib)-sizeof(struct aac_fibhdr),
FsaNormal,
0, 1,
(fib_callback)aac_aif_callback, fibctx);
} else {
struct fib *fib = &dev->fibs[index];
int start_callback = 0;
/*
* Remove this fib from the Outstanding I/O queue.
* But only if it has not already been timed out.
*
* If the fib has been timed out already, then just
* continue. The caller has already been notified that
* the fib timed out.
*/
atomic_dec(&dev->queues->queue[AdapNormCmdQueue].numpending);
if (unlikely(fib->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) {
aac_fib_complete(fib);
aac_fib_free(fib);
return 0;
}
FIB_COUNTER_INCREMENT(aac_config.FibRecved);
if (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) {
if (isFastResponse)
fib->flags |= FIB_CONTEXT_FLAG_FASTRESP;
if (fib->callback) {
start_callback = 1;
} else {
unsigned long flagv;
int completed = 0;
dprintk((KERN_INFO "event_wait up\n"));
spin_lock_irqsave(&fib->event_lock, flagv);
if (fib->done == 2) {
fib->done = 1;
completed = 1;
} else {
fib->done = 1;
complete(&fib->event_wait);
}
spin_unlock_irqrestore(&fib->event_lock, flagv);
spin_lock_irqsave(&dev->manage_lock, mflags);
dev->management_fib_count--;
spin_unlock_irqrestore(&dev->manage_lock,
mflags);
FIB_COUNTER_INCREMENT(aac_config.NativeRecved);
if (completed)
aac_fib_complete(fib);
}
} else {
struct hw_fib *hwfib = fib->hw_fib_va;
if (isFastResponse) {
/* Doctor the fib */
*(__le32 *)hwfib->data = cpu_to_le32(ST_OK);
hwfib->header.XferState |=
cpu_to_le32(AdapterProcessed);
fib->flags |= FIB_CONTEXT_FLAG_FASTRESP;
}
if (hwfib->header.Command ==
cpu_to_le16(NuFileSystem)) {
__le32 *pstatus = (__le32 *)hwfib->data;
if (*pstatus & cpu_to_le32(0xffff0000))
*pstatus = cpu_to_le32(ST_OK);
}
if (hwfib->header.XferState &
cpu_to_le32(NoResponseExpected | Async)) {
if (hwfib->header.XferState & cpu_to_le32(
NoResponseExpected)) {
FIB_COUNTER_INCREMENT(
aac_config.NoResponseRecved);
} else {
FIB_COUNTER_INCREMENT(
aac_config.AsyncRecved);
}
start_callback = 1;
} else {
unsigned long flagv;
int completed = 0;
dprintk((KERN_INFO "event_wait up\n"));
spin_lock_irqsave(&fib->event_lock, flagv);
if (fib->done == 2) {
fib->done = 1;
completed = 1;
} else {
fib->done = 1;
complete(&fib->event_wait);
}
spin_unlock_irqrestore(&fib->event_lock, flagv);
spin_lock_irqsave(&dev->manage_lock, mflags);
dev->management_fib_count--;
spin_unlock_irqrestore(&dev->manage_lock,
mflags);
FIB_COUNTER_INCREMENT(aac_config.NormalRecved);
if (completed)
aac_fib_complete(fib);
}
}
if (start_callback) {
/*
* NOTE: we cannot touch the fib after this
* call, because it may have been deallocated.
*/
if (likely(fib->callback && fib->callback_data)) {
fib->callback(fib->callback_data, fib);
} else {
aac_fib_complete(fib);
aac_fib_free(fib);
}
}
return 0;
}
}
|
linux-master
|
drivers/scsi/aacraid/dpcsup.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* comminit.c
*
* Abstract: This supports the initialization of the host adapter commuication interface.
* This is a platform dependent module for the pci cyclone board.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/completion.h>
#include <linux/mm.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_cmnd.h>
#include "aacraid.h"
struct aac_common aac_config = {
.irq_mod = 1
};
static inline int aac_is_msix_mode(struct aac_dev *dev)
{
u32 status = 0;
if (aac_is_src(dev))
status = src_readl(dev, MUnit.OMR);
return (status & AAC_INT_MODE_MSIX);
}
static inline void aac_change_to_intx(struct aac_dev *dev)
{
aac_src_access_devreg(dev, AAC_DISABLE_MSIX);
aac_src_access_devreg(dev, AAC_ENABLE_INTX);
}
static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign)
{
unsigned char *base;
unsigned long size, align;
const unsigned long fibsize = dev->max_fib_size;
const unsigned long printfbufsiz = 256;
unsigned long host_rrq_size, aac_init_size;
union aac_init *init;
dma_addr_t phys;
unsigned long aac_max_hostphysmempages;
if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) ||
(dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) ||
(dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 &&
!dev->sa_firmware)) {
host_rrq_size =
(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)
* sizeof(u32);
aac_init_size = sizeof(union aac_init);
} else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 &&
dev->sa_firmware) {
host_rrq_size = (dev->scsi_host_ptr->can_queue
+ AAC_NUM_MGT_FIB) * sizeof(u32) * AAC_MAX_MSIX;
aac_init_size = sizeof(union aac_init) +
(AAC_MAX_HRRQ - 1) * sizeof(struct _rrq);
} else {
host_rrq_size = 0;
aac_init_size = sizeof(union aac_init);
}
size = fibsize + aac_init_size + commsize + commalign +
printfbufsiz + host_rrq_size;
base = dma_alloc_coherent(&dev->pdev->dev, size, &phys, GFP_KERNEL);
if (base == NULL) {
printk(KERN_ERR "aacraid: unable to create mapping.\n");
return 0;
}
dev->comm_addr = (void *)base;
dev->comm_phys = phys;
dev->comm_size = size;
if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) ||
(dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) ||
(dev->comm_interface == AAC_COMM_MESSAGE_TYPE3)) {
dev->host_rrq = (u32 *)(base + fibsize);
dev->host_rrq_pa = phys + fibsize;
memset(dev->host_rrq, 0, host_rrq_size);
}
dev->init = (union aac_init *)(base + fibsize + host_rrq_size);
dev->init_pa = phys + fibsize + host_rrq_size;
init = dev->init;
if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) {
int i;
u64 addr;
init->r8.init_struct_revision =
cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_8);
init->r8.init_flags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED |
INITFLAGS_DRIVER_USES_UTC_TIME |
INITFLAGS_DRIVER_SUPPORTS_PM);
init->r8.init_flags |=
cpu_to_le32(INITFLAGS_DRIVER_SUPPORTS_HBA_MODE);
init->r8.rr_queue_count = cpu_to_le32(dev->max_msix);
init->r8.max_io_size =
cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9);
init->r8.max_num_aif = init->r8.reserved1 =
init->r8.reserved2 = 0;
for (i = 0; i < dev->max_msix; i++) {
addr = (u64)dev->host_rrq_pa + dev->vector_cap * i *
sizeof(u32);
init->r8.rrq[i].host_addr_high = cpu_to_le32(
upper_32_bits(addr));
init->r8.rrq[i].host_addr_low = cpu_to_le32(
lower_32_bits(addr));
init->r8.rrq[i].msix_id = i;
init->r8.rrq[i].element_count = cpu_to_le16(
(u16)dev->vector_cap);
init->r8.rrq[i].comp_thresh =
init->r8.rrq[i].unused = 0;
}
pr_warn("aacraid: Comm Interface type3 enabled\n");
} else {
init->r7.init_struct_revision =
cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
if (dev->max_fib_size != sizeof(struct hw_fib))
init->r7.init_struct_revision =
cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
init->r7.no_of_msix_vectors = cpu_to_le32(SA_MINIPORT_REVISION);
init->r7.fsrev = cpu_to_le32(dev->fsrev);
/*
* Adapter Fibs are the first thing allocated so that they
* start page aligned
*/
dev->aif_base_va = (struct hw_fib *)base;
init->r7.adapter_fibs_virtual_address = 0;
init->r7.adapter_fibs_physical_address = cpu_to_le32((u32)phys);
init->r7.adapter_fibs_size = cpu_to_le32(fibsize);
init->r7.adapter_fib_align = cpu_to_le32(sizeof(struct hw_fib));
/*
* number of 4k pages of host physical memory. The aacraid fw
* needs this number to be less than 4gb worth of pages. New
* firmware doesn't have any issues with the mapping system, but
* older Firmware did, and had *troubles* dealing with the math
* overloading past 32 bits, thus we must limit this field.
*/
aac_max_hostphysmempages =
dma_get_required_mask(&dev->pdev->dev) >> 12;
if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES)
init->r7.host_phys_mem_pages =
cpu_to_le32(aac_max_hostphysmempages);
else
init->r7.host_phys_mem_pages =
cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);
init->r7.init_flags =
cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME |
INITFLAGS_DRIVER_SUPPORTS_PM);
init->r7.max_io_commands =
cpu_to_le32(dev->scsi_host_ptr->can_queue +
AAC_NUM_MGT_FIB);
init->r7.max_io_size =
cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9);
init->r7.max_fib_size = cpu_to_le32(dev->max_fib_size);
init->r7.max_num_aif = cpu_to_le32(dev->max_num_aif);
if (dev->comm_interface == AAC_COMM_MESSAGE) {
init->r7.init_flags |=
cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED);
pr_warn("aacraid: Comm Interface enabled\n");
} else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
init->r7.init_struct_revision =
cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6);
init->r7.init_flags |=
cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED |
INITFLAGS_NEW_COMM_TYPE1_SUPPORTED |
INITFLAGS_FAST_JBOD_SUPPORTED);
init->r7.host_rrq_addr_high =
cpu_to_le32(upper_32_bits(dev->host_rrq_pa));
init->r7.host_rrq_addr_low =
cpu_to_le32(lower_32_bits(dev->host_rrq_pa));
pr_warn("aacraid: Comm Interface type1 enabled\n");
} else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
init->r7.init_struct_revision =
cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_7);
init->r7.init_flags |=
cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED |
INITFLAGS_NEW_COMM_TYPE2_SUPPORTED |
INITFLAGS_FAST_JBOD_SUPPORTED);
init->r7.host_rrq_addr_high =
cpu_to_le32(upper_32_bits(dev->host_rrq_pa));
init->r7.host_rrq_addr_low =
cpu_to_le32(lower_32_bits(dev->host_rrq_pa));
init->r7.no_of_msix_vectors =
cpu_to_le32(dev->max_msix);
/* must be the COMM_PREFERRED_SETTINGS values */
pr_warn("aacraid: Comm Interface type2 enabled\n");
}
}
/*
* Increment the base address by the amount already used
*/
base = base + fibsize + host_rrq_size + aac_init_size;
phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size +
aac_init_size);
/*
* Align the beginning of Headers to commalign
*/
align = (commalign - ((uintptr_t)(base) & (commalign - 1)));
base = base + align;
phys = phys + align;
/*
* Fill in addresses of the Comm Area Headers and Queues
*/
*commaddr = base;
if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3)
init->r7.comm_header_address = cpu_to_le32((u32)phys);
/*
* Increment the base address by the size of the CommArea
*/
base = base + commsize;
phys = phys + commsize;
/*
* Place the Printf buffer area after the Fast I/O comm area.
*/
dev->printfbuf = (void *)base;
if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3) {
init->r7.printfbuf = cpu_to_le32(phys);
init->r7.printfbufsiz = cpu_to_le32(printfbufsiz);
}
memset(base, 0, printfbufsiz);
return 1;
}
static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize)
{
atomic_set(&q->numpending, 0);
q->dev = dev;
init_waitqueue_head(&q->cmdready);
INIT_LIST_HEAD(&q->cmdq);
init_waitqueue_head(&q->qfull);
spin_lock_init(&q->lockdata);
q->lock = &q->lockdata;
q->headers.producer = (__le32 *)mem;
q->headers.consumer = (__le32 *)(mem+1);
*(q->headers.producer) = cpu_to_le32(qsize);
*(q->headers.consumer) = cpu_to_le32(qsize);
q->entries = qsize;
}
static bool wait_for_io_iter(struct scsi_cmnd *cmd, void *data)
{
int *active = data;
if (aac_priv(cmd)->owner == AAC_OWNER_FIRMWARE)
*active = *active + 1;
return true;
}
static void aac_wait_for_io_completion(struct aac_dev *aac)
{
int i = 0, active;
for (i = 60; i; --i) {
active = 0;
scsi_host_busy_iter(aac->scsi_host_ptr,
wait_for_io_iter, &active);
/*
* We can exit If all the commands are complete
*/
if (active == 0)
break;
dev_info(&aac->pdev->dev,
"Wait for %d commands to complete\n", active);
ssleep(1);
}
if (active)
dev_err(&aac->pdev->dev,
"%d outstanding commands during shutdown\n", active);
}
/**
* aac_send_shutdown - shutdown an adapter
* @dev: Adapter to shutdown
*
* This routine will send a VM_CloseAll (shutdown) request to the adapter.
*/
int aac_send_shutdown(struct aac_dev * dev)
{
struct fib * fibctx;
struct aac_close *cmd;
int status = 0;
if (aac_adapter_check_health(dev))
return status;
if (!dev->adapter_shutdown) {
mutex_lock(&dev->ioctl_mutex);
dev->adapter_shutdown = 1;
mutex_unlock(&dev->ioctl_mutex);
}
aac_wait_for_io_completion(dev);
fibctx = aac_fib_alloc(dev);
if (!fibctx)
return -ENOMEM;
aac_fib_init(fibctx);
cmd = (struct aac_close *) fib_data(fibctx);
cmd->command = cpu_to_le32(VM_CloseAll);
cmd->cid = cpu_to_le32(0xfffffffe);
status = aac_fib_send(ContainerCommand,
fibctx,
sizeof(struct aac_close),
FsaNormal,
-2 /* Timeout silently */, 1,
NULL, NULL);
if (status >= 0)
aac_fib_complete(fibctx);
/* FIB should be freed only after getting the response from the F/W */
if (status != -ERESTARTSYS)
aac_fib_free(fibctx);
if (aac_is_src(dev) &&
dev->msi_enabled)
aac_set_intx_mode(dev);
return status;
}
/**
* aac_comm_init - Initialise FSA data structures
* @dev: Adapter to initialise
*
* Initializes the data structures that are required for the FSA commuication
* interface to operate.
* Returns
* 1 - if we were able to init the commuication interface.
* 0 - If there were errors initing. This is a fatal error.
*/
static int aac_comm_init(struct aac_dev * dev)
{
unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2;
unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES;
u32 *headers;
struct aac_entry * queues;
unsigned long size;
struct aac_queue_block * comm = dev->queues;
/*
* Now allocate and initialize the zone structures used as our
* pool of FIB context records. The size of the zone is based
* on the system memory size. We also initialize the mutex used
* to protect the zone.
*/
spin_lock_init(&dev->fib_lock);
/*
* Allocate the physically contiguous space for the commuication
* queue headers.
*/
size = hdrsize + queuesize;
if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT))
return -ENOMEM;
queues = (struct aac_entry *)(((ulong)headers) + hdrsize);
/* Adapter to Host normal priority Command queue */
comm->queue[HostNormCmdQueue].base = queues;
aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES);
queues += HOST_NORM_CMD_ENTRIES;
headers += 2;
/* Adapter to Host high priority command queue */
comm->queue[HostHighCmdQueue].base = queues;
aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES);
queues += HOST_HIGH_CMD_ENTRIES;
headers +=2;
/* Host to adapter normal priority command queue */
comm->queue[AdapNormCmdQueue].base = queues;
aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES);
queues += ADAP_NORM_CMD_ENTRIES;
headers += 2;
/* host to adapter high priority command queue */
comm->queue[AdapHighCmdQueue].base = queues;
aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES);
queues += ADAP_HIGH_CMD_ENTRIES;
headers += 2;
/* adapter to host normal priority response queue */
comm->queue[HostNormRespQueue].base = queues;
aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES);
queues += HOST_NORM_RESP_ENTRIES;
headers += 2;
/* adapter to host high priority response queue */
comm->queue[HostHighRespQueue].base = queues;
aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES);
queues += HOST_HIGH_RESP_ENTRIES;
headers += 2;
/* host to adapter normal priority response queue */
comm->queue[AdapNormRespQueue].base = queues;
aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES);
queues += ADAP_NORM_RESP_ENTRIES;
headers += 2;
/* host to adapter high priority response queue */
comm->queue[AdapHighRespQueue].base = queues;
aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES);
comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock;
comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock;
comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock;
comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock;
return 0;
}
void aac_define_int_mode(struct aac_dev *dev)
{
int i, msi_count, min_msix;
msi_count = i = 0;
/* max. vectors from GET_COMM_PREFERRED_SETTINGS */
if (dev->max_msix == 0 ||
dev->pdev->device == PMC_DEVICE_S6 ||
dev->sync_mode) {
dev->max_msix = 1;
dev->vector_cap =
dev->scsi_host_ptr->can_queue +
AAC_NUM_MGT_FIB;
return;
}
/* Don't bother allocating more MSI-X vectors than cpus */
msi_count = min(dev->max_msix,
(unsigned int)num_online_cpus());
dev->max_msix = msi_count;
if (msi_count > AAC_MAX_MSIX)
msi_count = AAC_MAX_MSIX;
if (msi_count > 1 &&
pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) {
min_msix = 2;
i = pci_alloc_irq_vectors(dev->pdev,
min_msix, msi_count,
PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
if (i > 0) {
dev->msi_enabled = 1;
msi_count = i;
} else {
dev->msi_enabled = 0;
dev_err(&dev->pdev->dev,
"MSIX not supported!! Will try INTX 0x%x.\n", i);
}
}
if (!dev->msi_enabled)
dev->max_msix = msi_count = 1;
else {
if (dev->max_msix > msi_count)
dev->max_msix = msi_count;
}
if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 && dev->sa_firmware)
dev->vector_cap = dev->scsi_host_ptr->can_queue +
AAC_NUM_MGT_FIB;
else
dev->vector_cap = (dev->scsi_host_ptr->can_queue +
AAC_NUM_MGT_FIB) / msi_count;
}
struct aac_dev *aac_init_adapter(struct aac_dev *dev)
{
u32 status[5];
struct Scsi_Host * host = dev->scsi_host_ptr;
extern int aac_sync_mode;
/*
* Check the preferred comm settings, defaults from template.
*/
dev->management_fib_count = 0;
spin_lock_init(&dev->manage_lock);
spin_lock_init(&dev->sync_lock);
spin_lock_init(&dev->iq_lock);
dev->max_fib_size = sizeof(struct hw_fib);
dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size
- sizeof(struct aac_fibhdr)
- sizeof(struct aac_write) + sizeof(struct sgentry))
/ sizeof(struct sgentry);
dev->comm_interface = AAC_COMM_PRODUCER;
dev->raw_io_interface = dev->raw_io_64 = 0;
/*
* Enable INTX mode, if not done already Enabled
*/
if (aac_is_msix_mode(dev)) {
aac_change_to_intx(dev);
dev_info(&dev->pdev->dev, "Changed firmware to INTX mode");
}
if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
0, 0, 0, 0, 0, 0,
status+0, status+1, status+2, status+3, status+4)) &&
(status[0] == 0x00000001)) {
dev->doorbell_mask = status[3];
if (status[1] & AAC_OPT_NEW_COMM_64)
dev->raw_io_64 = 1;
dev->sync_mode = aac_sync_mode;
if (dev->a_ops.adapter_comm &&
(status[1] & AAC_OPT_NEW_COMM)) {
dev->comm_interface = AAC_COMM_MESSAGE;
dev->raw_io_interface = 1;
if ((status[1] & AAC_OPT_NEW_COMM_TYPE1)) {
/* driver supports TYPE1 (Tupelo) */
dev->comm_interface = AAC_COMM_MESSAGE_TYPE1;
} else if (status[1] & AAC_OPT_NEW_COMM_TYPE2) {
/* driver supports TYPE2 (Denali, Yosemite) */
dev->comm_interface = AAC_COMM_MESSAGE_TYPE2;
} else if (status[1] & AAC_OPT_NEW_COMM_TYPE3) {
/* driver supports TYPE3 (Yosemite, Thor) */
dev->comm_interface = AAC_COMM_MESSAGE_TYPE3;
} else if (status[1] & AAC_OPT_NEW_COMM_TYPE4) {
/* not supported TYPE - switch to sync. mode */
dev->comm_interface = AAC_COMM_MESSAGE_TYPE2;
dev->sync_mode = 1;
}
}
if ((status[1] & le32_to_cpu(AAC_OPT_EXTENDED)) &&
(status[4] & le32_to_cpu(AAC_EXTOPT_SA_FIRMWARE)))
dev->sa_firmware = 1;
else
dev->sa_firmware = 0;
if (status[4] & le32_to_cpu(AAC_EXTOPT_SOFT_RESET))
dev->soft_reset_support = 1;
else
dev->soft_reset_support = 0;
if ((dev->comm_interface == AAC_COMM_MESSAGE) &&
(status[2] > dev->base_size)) {
aac_adapter_ioremap(dev, 0);
dev->base_size = status[2];
if (aac_adapter_ioremap(dev, status[2])) {
/* remap failed, go back ... */
dev->comm_interface = AAC_COMM_PRODUCER;
if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) {
printk(KERN_WARNING
"aacraid: unable to map adapter.\n");
return NULL;
}
}
}
}
dev->max_msix = 0;
dev->msi_enabled = 0;
dev->adapter_shutdown = 0;
if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
0, 0, 0, 0, 0, 0,
status+0, status+1, status+2, status+3, status+4))
&& (status[0] == 0x00000001)) {
/*
* status[1] >> 16 maximum command size in KB
* status[1] & 0xFFFF maximum FIB size
* status[2] >> 16 maximum SG elements to driver
* status[2] & 0xFFFF maximum SG elements from driver
* status[3] & 0xFFFF maximum number FIBs outstanding
*/
host->max_sectors = (status[1] >> 16) << 1;
/* Multiple of 32 for PMC */
dev->max_fib_size = status[1] & 0xFFE0;
host->sg_tablesize = status[2] >> 16;
dev->sg_tablesize = status[2] & 0xFFFF;
if (aac_is_src(dev)) {
if (host->can_queue > (status[3] >> 16) -
AAC_NUM_MGT_FIB)
host->can_queue = (status[3] >> 16) -
AAC_NUM_MGT_FIB;
} else if (host->can_queue > (status[3] & 0xFFFF) -
AAC_NUM_MGT_FIB)
host->can_queue = (status[3] & 0xFFFF) -
AAC_NUM_MGT_FIB;
dev->max_num_aif = status[4] & 0xFFFF;
}
if (numacb > 0) {
if (numacb < host->can_queue)
host->can_queue = numacb;
else
pr_warn("numacb=%d ignored\n", numacb);
}
if (aac_is_src(dev))
aac_define_int_mode(dev);
/*
* Ok now init the communication subsystem
*/
dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL);
if (dev->queues == NULL) {
printk(KERN_ERR "Error could not allocate comm region.\n");
return NULL;
}
if (aac_comm_init(dev)<0){
kfree(dev->queues);
return NULL;
}
/*
* Initialize the list of fibs
*/
if (aac_fib_setup(dev) < 0) {
kfree(dev->queues);
return NULL;
}
INIT_LIST_HEAD(&dev->fib_list);
INIT_LIST_HEAD(&dev->sync_fib_list);
return dev;
}
|
linux-master
|
drivers/scsi/aacraid/comminit.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* commctrl.c
*
* Abstract: Contains all routines for control of the AFA comm layer
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/dma-mapping.h>
#include <linux/blkdev.h>
#include <linux/compat.h>
#include <linux/delay.h> /* ssleep prototype */
#include <linux/kthread.h>
#include <linux/uaccess.h>
#include <scsi/scsi_host.h>
#include "aacraid.h"
# define AAC_DEBUG_PREAMBLE KERN_INFO
# define AAC_DEBUG_POSTAMBLE
/**
* ioctl_send_fib - send a FIB from userspace
* @dev: adapter is being processed
* @arg: arguments to the ioctl call
*
* This routine sends a fib to the adapter on behalf of a user level
* program.
*/
static int ioctl_send_fib(struct aac_dev * dev, void __user *arg)
{
struct hw_fib * kfib;
struct fib *fibptr;
struct hw_fib * hw_fib = (struct hw_fib *)0;
dma_addr_t hw_fib_pa = (dma_addr_t)0LL;
unsigned int size, osize;
int retval;
if (dev->in_reset) {
return -EBUSY;
}
fibptr = aac_fib_alloc(dev);
if(fibptr == NULL) {
return -ENOMEM;
}
kfib = fibptr->hw_fib_va;
/*
* First copy in the header so that we can check the size field.
*/
if (copy_from_user((void *)kfib, arg, sizeof(struct aac_fibhdr))) {
aac_fib_free(fibptr);
return -EFAULT;
}
/*
* Since we copy based on the fib header size, make sure that we
* will not overrun the buffer when we copy the memory. Return
* an error if we would.
*/
osize = size = le16_to_cpu(kfib->header.Size) +
sizeof(struct aac_fibhdr);
if (size < le16_to_cpu(kfib->header.SenderSize))
size = le16_to_cpu(kfib->header.SenderSize);
if (size > dev->max_fib_size) {
dma_addr_t daddr;
if (size > 2048) {
retval = -EINVAL;
goto cleanup;
}
kfib = dma_alloc_coherent(&dev->pdev->dev, size, &daddr,
GFP_KERNEL);
if (!kfib) {
retval = -ENOMEM;
goto cleanup;
}
/* Highjack the hw_fib */
hw_fib = fibptr->hw_fib_va;
hw_fib_pa = fibptr->hw_fib_pa;
fibptr->hw_fib_va = kfib;
fibptr->hw_fib_pa = daddr;
memset(((char *)kfib) + dev->max_fib_size, 0, size - dev->max_fib_size);
memcpy(kfib, hw_fib, dev->max_fib_size);
}
if (copy_from_user(kfib, arg, size)) {
retval = -EFAULT;
goto cleanup;
}
/* Sanity check the second copy */
if ((osize != le16_to_cpu(kfib->header.Size) +
sizeof(struct aac_fibhdr))
|| (size < le16_to_cpu(kfib->header.SenderSize))) {
retval = -EINVAL;
goto cleanup;
}
if (kfib->header.Command == cpu_to_le16(TakeABreakPt)) {
aac_adapter_interrupt(dev);
/*
* Since we didn't really send a fib, zero out the state to allow
* cleanup code not to assert.
*/
kfib->header.XferState = 0;
} else {
retval = aac_fib_send(le16_to_cpu(kfib->header.Command), fibptr,
le16_to_cpu(kfib->header.Size) , FsaNormal,
1, 1, NULL, NULL);
if (retval) {
goto cleanup;
}
if (aac_fib_complete(fibptr) != 0) {
retval = -EINVAL;
goto cleanup;
}
}
/*
* Make sure that the size returned by the adapter (which includes
* the header) is less than or equal to the size of a fib, so we
* don't corrupt application data. Then copy that size to the user
* buffer. (Don't try to add the header information again, since it
* was already included by the adapter.)
*/
retval = 0;
if (copy_to_user(arg, (void *)kfib, size))
retval = -EFAULT;
cleanup:
if (hw_fib) {
dma_free_coherent(&dev->pdev->dev, size, kfib,
fibptr->hw_fib_pa);
fibptr->hw_fib_pa = hw_fib_pa;
fibptr->hw_fib_va = hw_fib;
}
if (retval != -ERESTARTSYS)
aac_fib_free(fibptr);
return retval;
}
/**
* open_getadapter_fib - Get the next fib
* @dev: adapter is being processed
* @arg: arguments to the open call
*
* This routine will get the next Fib, if available, from the AdapterFibContext
* passed in from the user.
*/
static int open_getadapter_fib(struct aac_dev * dev, void __user *arg)
{
struct aac_fib_context * fibctx;
int status;
fibctx = kmalloc(sizeof(struct aac_fib_context), GFP_KERNEL);
if (fibctx == NULL) {
status = -ENOMEM;
} else {
unsigned long flags;
struct list_head * entry;
struct aac_fib_context * context;
fibctx->type = FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT;
fibctx->size = sizeof(struct aac_fib_context);
/*
* Yes yes, I know this could be an index, but we have a
* better guarantee of uniqueness for the locked loop below.
* Without the aid of a persistent history, this also helps
* reduce the chance that the opaque context would be reused.
*/
fibctx->unique = (u32)((ulong)fibctx & 0xFFFFFFFF);
/*
* Initialize the mutex used to wait for the next AIF.
*/
init_completion(&fibctx->completion);
fibctx->wait = 0;
/*
* Initialize the fibs and set the count of fibs on
* the list to 0.
*/
fibctx->count = 0;
INIT_LIST_HEAD(&fibctx->fib_list);
fibctx->jiffies = jiffies/HZ;
/*
* Now add this context onto the adapter's
* AdapterFibContext list.
*/
spin_lock_irqsave(&dev->fib_lock, flags);
/* Ensure that we have a unique identifier */
entry = dev->fib_list.next;
while (entry != &dev->fib_list) {
context = list_entry(entry, struct aac_fib_context, next);
if (context->unique == fibctx->unique) {
/* Not unique (32 bits) */
fibctx->unique++;
entry = dev->fib_list.next;
} else {
entry = entry->next;
}
}
list_add_tail(&fibctx->next, &dev->fib_list);
spin_unlock_irqrestore(&dev->fib_lock, flags);
if (copy_to_user(arg, &fibctx->unique,
sizeof(fibctx->unique))) {
status = -EFAULT;
} else {
status = 0;
}
}
return status;
}
struct compat_fib_ioctl {
u32 fibctx;
s32 wait;
compat_uptr_t fib;
};
/**
* next_getadapter_fib - get the next fib
* @dev: adapter to use
* @arg: ioctl argument
*
* This routine will get the next Fib, if available, from the AdapterFibContext
* passed in from the user.
*/
static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
{
struct fib_ioctl f;
struct fib *fib;
struct aac_fib_context *fibctx;
int status;
struct list_head * entry;
unsigned long flags;
if (in_compat_syscall()) {
struct compat_fib_ioctl cf;
if (copy_from_user(&cf, arg, sizeof(struct compat_fib_ioctl)))
return -EFAULT;
f.fibctx = cf.fibctx;
f.wait = cf.wait;
f.fib = compat_ptr(cf.fib);
} else {
if (copy_from_user(&f, arg, sizeof(struct fib_ioctl)))
return -EFAULT;
}
/*
* Verify that the HANDLE passed in was a valid AdapterFibContext
*
* Search the list of AdapterFibContext addresses on the adapter
* to be sure this is a valid address
*/
spin_lock_irqsave(&dev->fib_lock, flags);
entry = dev->fib_list.next;
fibctx = NULL;
while (entry != &dev->fib_list) {
fibctx = list_entry(entry, struct aac_fib_context, next);
/*
* Extract the AdapterFibContext from the Input parameters.
*/
if (fibctx->unique == f.fibctx) { /* We found a winner */
break;
}
entry = entry->next;
fibctx = NULL;
}
if (!fibctx) {
spin_unlock_irqrestore(&dev->fib_lock, flags);
dprintk ((KERN_INFO "Fib Context not found\n"));
return -EINVAL;
}
if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) ||
(fibctx->size != sizeof(struct aac_fib_context))) {
spin_unlock_irqrestore(&dev->fib_lock, flags);
dprintk ((KERN_INFO "Fib Context corrupt?\n"));
return -EINVAL;
}
status = 0;
/*
* If there are no fibs to send back, then either wait or return
* -EAGAIN
*/
return_fib:
if (!list_empty(&fibctx->fib_list)) {
/*
* Pull the next fib from the fibs
*/
entry = fibctx->fib_list.next;
list_del(entry);
fib = list_entry(entry, struct fib, fiblink);
fibctx->count--;
spin_unlock_irqrestore(&dev->fib_lock, flags);
if (copy_to_user(f.fib, fib->hw_fib_va, sizeof(struct hw_fib))) {
kfree(fib->hw_fib_va);
kfree(fib);
return -EFAULT;
}
/*
* Free the space occupied by this copy of the fib.
*/
kfree(fib->hw_fib_va);
kfree(fib);
status = 0;
} else {
spin_unlock_irqrestore(&dev->fib_lock, flags);
/* If someone killed the AIF aacraid thread, restart it */
status = !dev->aif_thread;
if (status && !dev->in_reset && dev->queues && dev->fsa_dev) {
/* Be paranoid, be very paranoid! */
kthread_stop(dev->thread);
ssleep(1);
dev->aif_thread = 0;
dev->thread = kthread_run(aac_command_thread, dev,
"%s", dev->name);
ssleep(1);
}
if (f.wait) {
if (wait_for_completion_interruptible(&fibctx->completion) < 0) {
status = -ERESTARTSYS;
} else {
/* Lock again and retry */
spin_lock_irqsave(&dev->fib_lock, flags);
goto return_fib;
}
} else {
status = -EAGAIN;
}
}
fibctx->jiffies = jiffies/HZ;
return status;
}
int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
{
struct fib *fib;
/*
* First free any FIBs that have not been consumed.
*/
while (!list_empty(&fibctx->fib_list)) {
struct list_head * entry;
/*
* Pull the next fib from the fibs
*/
entry = fibctx->fib_list.next;
list_del(entry);
fib = list_entry(entry, struct fib, fiblink);
fibctx->count--;
/*
* Free the space occupied by this copy of the fib.
*/
kfree(fib->hw_fib_va);
kfree(fib);
}
/*
* Remove the Context from the AdapterFibContext List
*/
list_del(&fibctx->next);
/*
* Invalidate context
*/
fibctx->type = 0;
/*
* Free the space occupied by the Context
*/
kfree(fibctx);
return 0;
}
/**
* close_getadapter_fib - close down user fib context
* @dev: adapter
* @arg: ioctl arguments
*
* This routine will close down the fibctx passed in from the user.
*/
static int close_getadapter_fib(struct aac_dev * dev, void __user *arg)
{
struct aac_fib_context *fibctx;
int status;
unsigned long flags;
struct list_head * entry;
/*
* Verify that the HANDLE passed in was a valid AdapterFibContext
*
* Search the list of AdapterFibContext addresses on the adapter
* to be sure this is a valid address
*/
entry = dev->fib_list.next;
fibctx = NULL;
while(entry != &dev->fib_list) {
fibctx = list_entry(entry, struct aac_fib_context, next);
/*
* Extract the fibctx from the input parameters
*/
if (fibctx->unique == (u32)(uintptr_t)arg) /* We found a winner */
break;
entry = entry->next;
fibctx = NULL;
}
if (!fibctx)
return 0; /* Already gone */
if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) ||
(fibctx->size != sizeof(struct aac_fib_context)))
return -EINVAL;
spin_lock_irqsave(&dev->fib_lock, flags);
status = aac_close_fib_context(dev, fibctx);
spin_unlock_irqrestore(&dev->fib_lock, flags);
return status;
}
/**
* check_revision - close down user fib context
* @dev: adapter
* @arg: ioctl arguments
*
* This routine returns the driver version.
* Under Linux, there have been no version incompatibilities, so this is
* simple!
*/
static int check_revision(struct aac_dev *dev, void __user *arg)
{
struct revision response;
char *driver_version = aac_driver_version;
u32 version;
response.compat = 1;
version = (simple_strtol(driver_version,
&driver_version, 10) << 24) | 0x00000400;
version += simple_strtol(driver_version + 1, &driver_version, 10) << 16;
version += simple_strtol(driver_version + 1, NULL, 10);
response.version = cpu_to_le32(version);
# ifdef AAC_DRIVER_BUILD
response.build = cpu_to_le32(AAC_DRIVER_BUILD);
# else
response.build = cpu_to_le32(9999);
# endif
if (copy_to_user(arg, &response, sizeof(response)))
return -EFAULT;
return 0;
}
/**
* aac_send_raw_srb()
* @dev: adapter is being processed
* @arg: arguments to the send call
*/
static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
{
struct fib* srbfib;
int status;
struct aac_srb *srbcmd = NULL;
struct aac_hba_cmd_req *hbacmd = NULL;
struct user_aac_srb *user_srbcmd = NULL;
struct user_aac_srb __user *user_srb = arg;
struct aac_srb_reply __user *user_reply;
u32 chn;
u32 fibsize = 0;
u32 flags = 0;
s32 rcode = 0;
u32 data_dir;
void __user *sg_user[HBA_MAX_SG_EMBEDDED];
void *sg_list[HBA_MAX_SG_EMBEDDED];
u32 sg_count[HBA_MAX_SG_EMBEDDED];
u32 sg_indx = 0;
u32 byte_count = 0;
u32 actual_fibsize64, actual_fibsize = 0;
int i;
int is_native_device;
u64 address;
if (dev->in_reset) {
dprintk((KERN_DEBUG"aacraid: send raw srb -EBUSY\n"));
return -EBUSY;
}
if (!capable(CAP_SYS_ADMIN)){
dprintk((KERN_DEBUG"aacraid: No permission to send raw srb\n"));
return -EPERM;
}
/*
* Allocate and initialize a Fib then setup a SRB command
*/
if (!(srbfib = aac_fib_alloc(dev))) {
return -ENOMEM;
}
memset(sg_list, 0, sizeof(sg_list)); /* cleanup may take issue */
if(copy_from_user(&fibsize, &user_srb->count,sizeof(u32))){
dprintk((KERN_DEBUG"aacraid: Could not copy data size from user\n"));
rcode = -EFAULT;
goto cleanup;
}
if ((fibsize < (sizeof(struct user_aac_srb) - sizeof(struct user_sgentry))) ||
(fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))) {
rcode = -EINVAL;
goto cleanup;
}
user_srbcmd = memdup_user(user_srb, fibsize);
if (IS_ERR(user_srbcmd)) {
rcode = PTR_ERR(user_srbcmd);
user_srbcmd = NULL;
goto cleanup;
}
flags = user_srbcmd->flags; /* from user in cpu order */
switch (flags & (SRB_DataIn | SRB_DataOut)) {
case SRB_DataOut:
data_dir = DMA_TO_DEVICE;
break;
case (SRB_DataIn | SRB_DataOut):
data_dir = DMA_BIDIRECTIONAL;
break;
case SRB_DataIn:
data_dir = DMA_FROM_DEVICE;
break;
default:
data_dir = DMA_NONE;
}
if (user_srbcmd->sg.count > ARRAY_SIZE(sg_list)) {
dprintk((KERN_DEBUG"aacraid: too many sg entries %d\n",
user_srbcmd->sg.count));
rcode = -EINVAL;
goto cleanup;
}
if ((data_dir == DMA_NONE) && user_srbcmd->sg.count) {
dprintk((KERN_DEBUG"aacraid:SG with no direction specified\n"));
rcode = -EINVAL;
goto cleanup;
}
actual_fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry) +
((user_srbcmd->sg.count & 0xff) * sizeof(struct sgentry));
actual_fibsize64 = actual_fibsize + (user_srbcmd->sg.count & 0xff) *
(sizeof(struct sgentry64) - sizeof(struct sgentry));
/* User made a mistake - should not continue */
if ((actual_fibsize != fibsize) && (actual_fibsize64 != fibsize)) {
dprintk((KERN_DEBUG"aacraid: Bad Size specified in "
"Raw SRB command calculated fibsize=%lu;%lu "
"user_srbcmd->sg.count=%d aac_srb=%lu sgentry=%lu;%lu "
"issued fibsize=%d\n",
actual_fibsize, actual_fibsize64, user_srbcmd->sg.count,
sizeof(struct aac_srb), sizeof(struct sgentry),
sizeof(struct sgentry64), fibsize));
rcode = -EINVAL;
goto cleanup;
}
chn = user_srbcmd->channel;
if (chn < AAC_MAX_BUSES && user_srbcmd->id < AAC_MAX_TARGETS &&
dev->hba_map[chn][user_srbcmd->id].devtype ==
AAC_DEVTYPE_NATIVE_RAW) {
is_native_device = 1;
hbacmd = (struct aac_hba_cmd_req *)srbfib->hw_fib_va;
memset(hbacmd, 0, 96); /* sizeof(*hbacmd) is not necessary */
/* iu_type is a parameter of aac_hba_send */
switch (data_dir) {
case DMA_TO_DEVICE:
hbacmd->byte1 = 2;
break;
case DMA_FROM_DEVICE:
case DMA_BIDIRECTIONAL:
hbacmd->byte1 = 1;
break;
case DMA_NONE:
default:
break;
}
hbacmd->lun[1] = cpu_to_le32(user_srbcmd->lun);
hbacmd->it_nexus = dev->hba_map[chn][user_srbcmd->id].rmw_nexus;
/*
* we fill in reply_qid later in aac_src_deliver_message
* we fill in iu_type, request_id later in aac_hba_send
* we fill in emb_data_desc_count, data_length later
* in sg list build
*/
memcpy(hbacmd->cdb, user_srbcmd->cdb, sizeof(hbacmd->cdb));
address = (u64)srbfib->hw_error_pa;
hbacmd->error_ptr_hi = cpu_to_le32((u32)(address >> 32));
hbacmd->error_ptr_lo = cpu_to_le32((u32)(address & 0xffffffff));
hbacmd->error_length = cpu_to_le32(FW_ERROR_BUFFER_SIZE);
hbacmd->emb_data_desc_count =
cpu_to_le32(user_srbcmd->sg.count);
srbfib->hbacmd_size = 64 +
user_srbcmd->sg.count * sizeof(struct aac_hba_sgl);
} else {
is_native_device = 0;
aac_fib_init(srbfib);
/* raw_srb FIB is not FastResponseCapable */
srbfib->hw_fib_va->header.XferState &=
~cpu_to_le32(FastResponseCapable);
srbcmd = (struct aac_srb *) fib_data(srbfib);
// Fix up srb for endian and force some values
srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi); // Force this
srbcmd->channel = cpu_to_le32(user_srbcmd->channel);
srbcmd->id = cpu_to_le32(user_srbcmd->id);
srbcmd->lun = cpu_to_le32(user_srbcmd->lun);
srbcmd->timeout = cpu_to_le32(user_srbcmd->timeout);
srbcmd->flags = cpu_to_le32(flags);
srbcmd->retry_limit = 0; // Obsolete parameter
srbcmd->cdb_size = cpu_to_le32(user_srbcmd->cdb_size);
memcpy(srbcmd->cdb, user_srbcmd->cdb, sizeof(srbcmd->cdb));
}
byte_count = 0;
if (is_native_device) {
struct user_sgmap *usg32 = &user_srbcmd->sg;
struct user_sgmap64 *usg64 =
(struct user_sgmap64 *)&user_srbcmd->sg;
for (i = 0; i < usg32->count; i++) {
void *p;
u64 addr;
sg_count[i] = (actual_fibsize64 == fibsize) ?
usg64->sg[i].count : usg32->sg[i].count;
if (sg_count[i] >
(dev->scsi_host_ptr->max_sectors << 9)) {
pr_err("aacraid: upsg->sg[%d].count=%u>%u\n",
i, sg_count[i],
dev->scsi_host_ptr->max_sectors << 9);
rcode = -EINVAL;
goto cleanup;
}
p = kmalloc(sg_count[i], GFP_KERNEL);
if (!p) {
rcode = -ENOMEM;
goto cleanup;
}
if (actual_fibsize64 == fibsize) {
addr = (u64)usg64->sg[i].addr[0];
addr += ((u64)usg64->sg[i].addr[1]) << 32;
} else {
addr = (u64)usg32->sg[i].addr;
}
sg_user[i] = (void __user *)(uintptr_t)addr;
sg_list[i] = p; // save so we can clean up later
sg_indx = i;
if (flags & SRB_DataOut) {
if (copy_from_user(p, sg_user[i],
sg_count[i])) {
rcode = -EFAULT;
goto cleanup;
}
}
addr = dma_map_single(&dev->pdev->dev, p, sg_count[i],
data_dir);
hbacmd->sge[i].addr_hi = cpu_to_le32((u32)(addr>>32));
hbacmd->sge[i].addr_lo = cpu_to_le32(
(u32)(addr & 0xffffffff));
hbacmd->sge[i].len = cpu_to_le32(sg_count[i]);
hbacmd->sge[i].flags = 0;
byte_count += sg_count[i];
}
if (usg32->count > 0) /* embedded sglist */
hbacmd->sge[usg32->count-1].flags =
cpu_to_le32(0x40000000);
hbacmd->data_length = cpu_to_le32(byte_count);
status = aac_hba_send(HBA_IU_TYPE_SCSI_CMD_REQ, srbfib,
NULL, NULL);
} else if (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64) {
struct user_sgmap64* upsg = (struct user_sgmap64*)&user_srbcmd->sg;
struct sgmap64* psg = (struct sgmap64*)&srbcmd->sg;
/*
* This should also catch if user used the 32 bit sgmap
*/
if (actual_fibsize64 == fibsize) {
actual_fibsize = actual_fibsize64;
for (i = 0; i < upsg->count; i++) {
u64 addr;
void* p;
sg_count[i] = upsg->sg[i].count;
if (sg_count[i] >
((dev->adapter_info.options &
AAC_OPT_NEW_COMM) ?
(dev->scsi_host_ptr->max_sectors << 9) :
65536)) {
rcode = -EINVAL;
goto cleanup;
}
p = kmalloc(sg_count[i], GFP_KERNEL);
if(!p) {
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
sg_count[i], i, upsg->count));
rcode = -ENOMEM;
goto cleanup;
}
addr = (u64)upsg->sg[i].addr[0];
addr += ((u64)upsg->sg[i].addr[1]) << 32;
sg_user[i] = (void __user *)(uintptr_t)addr;
sg_list[i] = p; // save so we can clean up later
sg_indx = i;
if (flags & SRB_DataOut) {
if (copy_from_user(p, sg_user[i],
sg_count[i])){
dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
rcode = -EFAULT;
goto cleanup;
}
}
addr = dma_map_single(&dev->pdev->dev, p,
sg_count[i], data_dir);
psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
byte_count += sg_count[i];
psg->sg[i].count = cpu_to_le32(sg_count[i]);
}
} else {
struct user_sgmap* usg;
usg = kmemdup(upsg,
actual_fibsize - sizeof(struct aac_srb)
+ sizeof(struct sgmap), GFP_KERNEL);
if (!usg) {
dprintk((KERN_DEBUG"aacraid: Allocation error in Raw SRB command\n"));
rcode = -ENOMEM;
goto cleanup;
}
actual_fibsize = actual_fibsize64;
for (i = 0; i < usg->count; i++) {
u64 addr;
void* p;
sg_count[i] = usg->sg[i].count;
if (sg_count[i] >
((dev->adapter_info.options &
AAC_OPT_NEW_COMM) ?
(dev->scsi_host_ptr->max_sectors << 9) :
65536)) {
kfree(usg);
rcode = -EINVAL;
goto cleanup;
}
p = kmalloc(sg_count[i], GFP_KERNEL);
if(!p) {
dprintk((KERN_DEBUG "aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
sg_count[i], i, usg->count));
kfree(usg);
rcode = -ENOMEM;
goto cleanup;
}
sg_user[i] = (void __user *)(uintptr_t)usg->sg[i].addr;
sg_list[i] = p; // save so we can clean up later
sg_indx = i;
if (flags & SRB_DataOut) {
if (copy_from_user(p, sg_user[i],
sg_count[i])) {
kfree (usg);
dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
rcode = -EFAULT;
goto cleanup;
}
}
addr = dma_map_single(&dev->pdev->dev, p,
sg_count[i], data_dir);
psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
byte_count += sg_count[i];
psg->sg[i].count = cpu_to_le32(sg_count[i]);
}
kfree (usg);
}
srbcmd->count = cpu_to_le32(byte_count);
if (user_srbcmd->sg.count)
psg->count = cpu_to_le32(sg_indx+1);
else
psg->count = 0;
status = aac_fib_send(ScsiPortCommand64, srbfib, actual_fibsize, FsaNormal, 1, 1,NULL,NULL);
} else {
struct user_sgmap* upsg = &user_srbcmd->sg;
struct sgmap* psg = &srbcmd->sg;
if (actual_fibsize64 == fibsize) {
struct user_sgmap64* usg = (struct user_sgmap64 *)upsg;
for (i = 0; i < upsg->count; i++) {
uintptr_t addr;
void* p;
sg_count[i] = usg->sg[i].count;
if (sg_count[i] >
((dev->adapter_info.options &
AAC_OPT_NEW_COMM) ?
(dev->scsi_host_ptr->max_sectors << 9) :
65536)) {
rcode = -EINVAL;
goto cleanup;
}
p = kmalloc(sg_count[i], GFP_KERNEL);
if (!p) {
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
sg_count[i], i, usg->count));
rcode = -ENOMEM;
goto cleanup;
}
addr = (u64)usg->sg[i].addr[0];
addr += ((u64)usg->sg[i].addr[1]) << 32;
sg_user[i] = (void __user *)addr;
sg_list[i] = p; // save so we can clean up later
sg_indx = i;
if (flags & SRB_DataOut) {
if (copy_from_user(p, sg_user[i],
sg_count[i])){
dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
rcode = -EFAULT;
goto cleanup;
}
}
addr = dma_map_single(&dev->pdev->dev, p,
usg->sg[i].count,
data_dir);
psg->sg[i].addr = cpu_to_le32(addr & 0xffffffff);
byte_count += usg->sg[i].count;
psg->sg[i].count = cpu_to_le32(sg_count[i]);
}
} else {
for (i = 0; i < upsg->count; i++) {
dma_addr_t addr;
void* p;
sg_count[i] = upsg->sg[i].count;
if (sg_count[i] >
((dev->adapter_info.options &
AAC_OPT_NEW_COMM) ?
(dev->scsi_host_ptr->max_sectors << 9) :
65536)) {
rcode = -EINVAL;
goto cleanup;
}
p = kmalloc(sg_count[i], GFP_KERNEL);
if (!p) {
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
sg_count[i], i, upsg->count));
rcode = -ENOMEM;
goto cleanup;
}
sg_user[i] = (void __user *)(uintptr_t)upsg->sg[i].addr;
sg_list[i] = p; // save so we can clean up later
sg_indx = i;
if (flags & SRB_DataOut) {
if (copy_from_user(p, sg_user[i],
sg_count[i])) {
dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
rcode = -EFAULT;
goto cleanup;
}
}
addr = dma_map_single(&dev->pdev->dev, p,
sg_count[i], data_dir);
psg->sg[i].addr = cpu_to_le32(addr);
byte_count += sg_count[i];
psg->sg[i].count = cpu_to_le32(sg_count[i]);
}
}
srbcmd->count = cpu_to_le32(byte_count);
if (user_srbcmd->sg.count)
psg->count = cpu_to_le32(sg_indx+1);
else
psg->count = 0;
status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL);
}
if (status == -ERESTARTSYS) {
rcode = -ERESTARTSYS;
goto cleanup;
}
if (status != 0) {
dprintk((KERN_DEBUG"aacraid: Could not send raw srb fib to hba\n"));
rcode = -ENXIO;
goto cleanup;
}
if (flags & SRB_DataIn) {
for(i = 0 ; i <= sg_indx; i++){
if (copy_to_user(sg_user[i], sg_list[i], sg_count[i])) {
dprintk((KERN_DEBUG"aacraid: Could not copy sg data to user\n"));
rcode = -EFAULT;
goto cleanup;
}
}
}
user_reply = arg + fibsize;
if (is_native_device) {
struct aac_hba_resp *err =
&((struct aac_native_hba *)srbfib->hw_fib_va)->resp.err;
struct aac_srb_reply reply;
memset(&reply, 0, sizeof(reply));
reply.status = ST_OK;
if (srbfib->flags & FIB_CONTEXT_FLAG_FASTRESP) {
/* fast response */
reply.srb_status = SRB_STATUS_SUCCESS;
reply.scsi_status = 0;
reply.data_xfer_length = byte_count;
reply.sense_data_size = 0;
memset(reply.sense_data, 0, AAC_SENSE_BUFFERSIZE);
} else {
reply.srb_status = err->service_response;
reply.scsi_status = err->status;
reply.data_xfer_length = byte_count -
le32_to_cpu(err->residual_count);
reply.sense_data_size = err->sense_response_data_len;
memcpy(reply.sense_data, err->sense_response_buf,
AAC_SENSE_BUFFERSIZE);
}
if (copy_to_user(user_reply, &reply,
sizeof(struct aac_srb_reply))) {
dprintk((KERN_DEBUG"aacraid: Copy to user failed\n"));
rcode = -EFAULT;
goto cleanup;
}
} else {
struct aac_srb_reply *reply;
reply = (struct aac_srb_reply *) fib_data(srbfib);
if (copy_to_user(user_reply, reply,
sizeof(struct aac_srb_reply))) {
dprintk((KERN_DEBUG"aacraid: Copy to user failed\n"));
rcode = -EFAULT;
goto cleanup;
}
}
cleanup:
kfree(user_srbcmd);
if (rcode != -ERESTARTSYS) {
for (i = 0; i <= sg_indx; i++)
kfree(sg_list[i]);
aac_fib_complete(srbfib);
aac_fib_free(srbfib);
}
return rcode;
}
struct aac_pci_info {
u32 bus;
u32 slot;
};
static int aac_get_pci_info(struct aac_dev* dev, void __user *arg)
{
struct aac_pci_info pci_info;
pci_info.bus = dev->pdev->bus->number;
pci_info.slot = PCI_SLOT(dev->pdev->devfn);
if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) {
dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n"));
return -EFAULT;
}
return 0;
}
static int aac_get_hba_info(struct aac_dev *dev, void __user *arg)
{
struct aac_hba_info hbainfo;
memset(&hbainfo, 0, sizeof(hbainfo));
hbainfo.adapter_number = (u8) dev->id;
hbainfo.system_io_bus_number = dev->pdev->bus->number;
hbainfo.device_number = (dev->pdev->devfn >> 3);
hbainfo.function_number = (dev->pdev->devfn & 0x0007);
hbainfo.vendor_id = dev->pdev->vendor;
hbainfo.device_id = dev->pdev->device;
hbainfo.sub_vendor_id = dev->pdev->subsystem_vendor;
hbainfo.sub_system_id = dev->pdev->subsystem_device;
if (copy_to_user(arg, &hbainfo, sizeof(struct aac_hba_info))) {
dprintk((KERN_DEBUG "aacraid: Could not copy hba info\n"));
return -EFAULT;
}
return 0;
}
struct aac_reset_iop {
u8 reset_type;
};
static int aac_send_reset_adapter(struct aac_dev *dev, void __user *arg)
{
struct aac_reset_iop reset;
int retval;
if (copy_from_user((void *)&reset, arg, sizeof(struct aac_reset_iop)))
return -EFAULT;
dev->adapter_shutdown = 1;
mutex_unlock(&dev->ioctl_mutex);
retval = aac_reset_adapter(dev, 0, reset.reset_type);
mutex_lock(&dev->ioctl_mutex);
return retval;
}
int aac_do_ioctl(struct aac_dev *dev, unsigned int cmd, void __user *arg)
{
int status;
mutex_lock(&dev->ioctl_mutex);
if (dev->adapter_shutdown) {
status = -EACCES;
goto cleanup;
}
/*
* HBA gets first crack
*/
status = aac_dev_ioctl(dev, cmd, arg);
if (status != -ENOTTY)
goto cleanup;
switch (cmd) {
case FSACTL_MINIPORT_REV_CHECK:
status = check_revision(dev, arg);
break;
case FSACTL_SEND_LARGE_FIB:
case FSACTL_SENDFIB:
status = ioctl_send_fib(dev, arg);
break;
case FSACTL_OPEN_GET_ADAPTER_FIB:
status = open_getadapter_fib(dev, arg);
break;
case FSACTL_GET_NEXT_ADAPTER_FIB:
status = next_getadapter_fib(dev, arg);
break;
case FSACTL_CLOSE_GET_ADAPTER_FIB:
status = close_getadapter_fib(dev, arg);
break;
case FSACTL_SEND_RAW_SRB:
status = aac_send_raw_srb(dev,arg);
break;
case FSACTL_GET_PCI_INFO:
status = aac_get_pci_info(dev,arg);
break;
case FSACTL_GET_HBA_INFO:
status = aac_get_hba_info(dev, arg);
break;
case FSACTL_RESET_IOP:
status = aac_send_reset_adapter(dev, arg);
break;
default:
status = -ENOTTY;
break;
}
cleanup:
mutex_unlock(&dev->ioctl_mutex);
return status;
}
|
linux-master
|
drivers/scsi/aacraid/commctrl.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* src.c
*
* Abstract: Hardware Device Interface for PMC SRC based controllers
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/completion.h>
#include <linux/time.h>
#include <linux/interrupt.h>
#include <scsi/scsi_host.h>
#include "aacraid.h"
static int aac_src_get_sync_status(struct aac_dev *dev);
static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
{
struct aac_msix_ctx *ctx;
struct aac_dev *dev;
unsigned long bellbits, bellbits_shifted;
int vector_no;
int isFastResponse, mode;
u32 index, handle;
ctx = (struct aac_msix_ctx *)dev_id;
dev = ctx->dev;
vector_no = ctx->vector_no;
if (dev->msi_enabled) {
mode = AAC_INT_MODE_MSI;
if (vector_no == 0) {
bellbits = src_readl(dev, MUnit.ODR_MSI);
if (bellbits & 0x40000)
mode |= AAC_INT_MODE_AIF;
if (bellbits & 0x1000)
mode |= AAC_INT_MODE_SYNC;
}
} else {
mode = AAC_INT_MODE_INTX;
bellbits = src_readl(dev, MUnit.ODR_R);
if (bellbits & PmDoorBellResponseSent) {
bellbits = PmDoorBellResponseSent;
src_writel(dev, MUnit.ODR_C, bellbits);
src_readl(dev, MUnit.ODR_C);
} else {
bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
src_writel(dev, MUnit.ODR_C, bellbits);
src_readl(dev, MUnit.ODR_C);
if (bellbits_shifted & DoorBellAifPending)
mode |= AAC_INT_MODE_AIF;
else if (bellbits_shifted & OUTBOUNDDOORBELL_0)
mode |= AAC_INT_MODE_SYNC;
}
}
if (mode & AAC_INT_MODE_SYNC) {
unsigned long sflags;
struct list_head *entry;
int send_it = 0;
extern int aac_sync_mode;
if (!aac_sync_mode && !dev->msi_enabled) {
src_writel(dev, MUnit.ODR_C, bellbits);
src_readl(dev, MUnit.ODR_C);
}
if (dev->sync_fib) {
if (dev->sync_fib->callback)
dev->sync_fib->callback(dev->sync_fib->callback_data,
dev->sync_fib);
spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
dev->management_fib_count--;
complete(&dev->sync_fib->event_wait);
}
spin_unlock_irqrestore(&dev->sync_fib->event_lock,
sflags);
spin_lock_irqsave(&dev->sync_lock, sflags);
if (!list_empty(&dev->sync_fib_list)) {
entry = dev->sync_fib_list.next;
dev->sync_fib = list_entry(entry,
struct fib,
fiblink);
list_del(entry);
send_it = 1;
} else {
dev->sync_fib = NULL;
}
spin_unlock_irqrestore(&dev->sync_lock, sflags);
if (send_it) {
aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
(u32)dev->sync_fib->hw_fib_pa,
0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
}
}
if (!dev->msi_enabled)
mode = 0;
}
if (mode & AAC_INT_MODE_AIF) {
/* handle AIF */
if (dev->sa_firmware) {
u32 events = src_readl(dev, MUnit.SCR0);
aac_intr_normal(dev, events, 1, 0, NULL);
writel(events, &dev->IndexRegs->Mailbox[0]);
src_writel(dev, MUnit.IDR, 1 << 23);
} else {
if (dev->aif_thread && dev->fsa_dev)
aac_intr_normal(dev, 0, 2, 0, NULL);
}
if (dev->msi_enabled)
aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT);
mode = 0;
}
if (mode) {
index = dev->host_rrq_idx[vector_no];
for (;;) {
isFastResponse = 0;
/* remove toggle bit (31) */
handle = le32_to_cpu((dev->host_rrq[index])
& 0x7fffffff);
/* check fast response bits (30, 1) */
if (handle & 0x40000000)
isFastResponse = 1;
handle &= 0x0000ffff;
if (handle == 0)
break;
handle >>= 2;
if (dev->msi_enabled && dev->max_msix > 1)
atomic_dec(&dev->rrq_outstanding[vector_no]);
aac_intr_normal(dev, handle, 0, isFastResponse, NULL);
dev->host_rrq[index++] = 0;
if (index == (vector_no + 1) * dev->vector_cap)
index = vector_no * dev->vector_cap;
dev->host_rrq_idx[vector_no] = index;
}
mode = 0;
}
return IRQ_HANDLED;
}
/**
* aac_src_disable_interrupt - Disable interrupts
* @dev: Adapter
*/
static void aac_src_disable_interrupt(struct aac_dev *dev)
{
src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff);
}
/**
* aac_src_enable_interrupt_message - Enable interrupts
* @dev: Adapter
*/
static void aac_src_enable_interrupt_message(struct aac_dev *dev)
{
aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT);
}
/**
* src_sync_cmd - send a command and wait
* @dev: Adapter
* @command: Command to execute
* @p1: first parameter
* @p2: second parameter
* @p3: third parameter
* @p4: forth parameter
* @p5: fifth parameter
* @p6: sixth parameter
* @status: adapter status
* @r1: first return value
* @r2: second return valu
* @r3: third return value
* @r4: forth return value
*
* This routine will send a synchronous command to the adapter and wait
* for its completion.
*/
static int src_sync_cmd(struct aac_dev *dev, u32 command,
u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
{
unsigned long start;
unsigned long delay;
int ok;
/*
* Write the command into Mailbox 0
*/
writel(command, &dev->IndexRegs->Mailbox[0]);
/*
* Write the parameters into Mailboxes 1 - 6
*/
writel(p1, &dev->IndexRegs->Mailbox[1]);
writel(p2, &dev->IndexRegs->Mailbox[2]);
writel(p3, &dev->IndexRegs->Mailbox[3]);
writel(p4, &dev->IndexRegs->Mailbox[4]);
/*
* Clear the synch command doorbell to start on a clean slate.
*/
if (!dev->msi_enabled)
src_writel(dev,
MUnit.ODR_C,
OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
/*
* Disable doorbell interrupts
*/
src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff);
/*
* Force the completion of the mask register write before issuing
* the interrupt.
*/
src_readl(dev, MUnit.OIMR);
/*
* Signal that there is a new synch command
*/
src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT);
if ((!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) &&
!dev->in_soft_reset) {
ok = 0;
start = jiffies;
if (command == IOP_RESET_ALWAYS) {
/* Wait up to 10 sec */
delay = 10*HZ;
} else {
/* Wait up to 5 minutes */
delay = 300*HZ;
}
while (time_before(jiffies, start+delay)) {
udelay(5); /* Delay 5 microseconds to let Mon960 get info. */
/*
* Mon960 will set doorbell0 bit when it has completed the command.
*/
if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) {
/*
* Clear the doorbell.
*/
if (dev->msi_enabled)
aac_src_access_devreg(dev,
AAC_CLEAR_SYNC_BIT);
else
src_writel(dev,
MUnit.ODR_C,
OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
ok = 1;
break;
}
/*
* Yield the processor in case we are slow
*/
msleep(1);
}
if (unlikely(ok != 1)) {
/*
* Restore interrupt mask even though we timed out
*/
aac_adapter_enable_int(dev);
return -ETIMEDOUT;
}
/*
* Pull the synch status from Mailbox 0.
*/
if (status)
*status = readl(&dev->IndexRegs->Mailbox[0]);
if (r1)
*r1 = readl(&dev->IndexRegs->Mailbox[1]);
if (r2)
*r2 = readl(&dev->IndexRegs->Mailbox[2]);
if (r3)
*r3 = readl(&dev->IndexRegs->Mailbox[3]);
if (r4)
*r4 = readl(&dev->IndexRegs->Mailbox[4]);
if (command == GET_COMM_PREFERRED_SETTINGS)
dev->max_msix =
readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF;
/*
* Clear the synch command doorbell.
*/
if (!dev->msi_enabled)
src_writel(dev,
MUnit.ODR_C,
OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
}
/*
* Restore interrupt mask
*/
aac_adapter_enable_int(dev);
return 0;
}
/**
* aac_src_interrupt_adapter - interrupt adapter
* @dev: Adapter
*
* Send an interrupt to the i960 and breakpoint it.
*/
static void aac_src_interrupt_adapter(struct aac_dev *dev)
{
src_sync_cmd(dev, BREAKPOINT_REQUEST,
0, 0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
}
/**
* aac_src_notify_adapter - send an event to the adapter
* @dev: Adapter
* @event: Event to send
*
* Notify the i960 that something it probably cares about has
* happened.
*/
static void aac_src_notify_adapter(struct aac_dev *dev, u32 event)
{
switch (event) {
case AdapNormCmdQue:
src_writel(dev, MUnit.ODR_C,
INBOUNDDOORBELL_1 << SRC_ODR_SHIFT);
break;
case HostNormRespNotFull:
src_writel(dev, MUnit.ODR_C,
INBOUNDDOORBELL_4 << SRC_ODR_SHIFT);
break;
case AdapNormRespQue:
src_writel(dev, MUnit.ODR_C,
INBOUNDDOORBELL_2 << SRC_ODR_SHIFT);
break;
case HostNormCmdNotFull:
src_writel(dev, MUnit.ODR_C,
INBOUNDDOORBELL_3 << SRC_ODR_SHIFT);
break;
case FastIo:
src_writel(dev, MUnit.ODR_C,
INBOUNDDOORBELL_6 << SRC_ODR_SHIFT);
break;
case AdapPrintfDone:
src_writel(dev, MUnit.ODR_C,
INBOUNDDOORBELL_5 << SRC_ODR_SHIFT);
break;
default:
BUG();
break;
}
}
/**
* aac_src_start_adapter - activate adapter
* @dev: Adapter
*
* Start up processing on an i960 based AAC adapter
*/
static void aac_src_start_adapter(struct aac_dev *dev)
{
union aac_init *init;
int i;
/* reset host_rrq_idx first */
for (i = 0; i < dev->max_msix; i++) {
dev->host_rrq_idx[i] = i * dev->vector_cap;
atomic_set(&dev->rrq_outstanding[i], 0);
}
atomic_set(&dev->msix_counter, 0);
dev->fibs_pushed_no = 0;
init = dev->init;
if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) {
init->r8.host_elapsed_seconds =
cpu_to_le32(ktime_get_real_seconds());
src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
lower_32_bits(dev->init_pa),
upper_32_bits(dev->init_pa),
sizeof(struct _r8) +
(AAC_MAX_HRRQ - 1) * sizeof(struct _rrq),
0, 0, 0, NULL, NULL, NULL, NULL, NULL);
} else {
init->r7.host_elapsed_seconds =
cpu_to_le32(ktime_get_real_seconds());
// We can only use a 32 bit address here
src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
(u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
}
}
/**
* aac_src_check_health
* @dev: device to check if healthy
*
* Will attempt to determine if the specified adapter is alive and
* capable of handling requests, returning 0 if alive.
*/
static int aac_src_check_health(struct aac_dev *dev)
{
u32 status = src_readl(dev, MUnit.OMR);
/*
* Check to see if the board panic'd.
*/
if (unlikely(status & KERNEL_PANIC))
goto err_blink;
/*
* Check to see if the board failed any self tests.
*/
if (unlikely(status & SELF_TEST_FAILED))
goto err_out;
/*
* Check to see if the board failed any self tests.
*/
if (unlikely(status & MONITOR_PANIC))
goto err_out;
/*
* Wait for the adapter to be up and running.
*/
if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
return -3;
/*
* Everything is OK
*/
return 0;
err_out:
return -1;
err_blink:
return (status >> 16) & 0xFF;
}
static inline u32 aac_get_vector(struct aac_dev *dev)
{
return atomic_inc_return(&dev->msix_counter)%dev->max_msix;
}
/**
* aac_src_deliver_message
* @fib: fib to issue
*
* Will send a fib, returning 0 if successful.
*/
static int aac_src_deliver_message(struct fib *fib)
{
struct aac_dev *dev = fib->dev;
struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
u32 fibsize;
dma_addr_t address;
struct aac_fib_xporthdr *pFibX;
int native_hba;
#if !defined(writeq)
unsigned long flags;
#endif
u16 vector_no;
struct scsi_cmnd *scmd;
u32 blk_tag;
struct Scsi_Host *shost = dev->scsi_host_ptr;
struct blk_mq_queue_map *qmap;
atomic_inc(&q->numpending);
native_hba = (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) ? 1 : 0;
if (dev->msi_enabled && dev->max_msix > 1 &&
(native_hba || fib->hw_fib_va->header.Command != AifRequest)) {
if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE3)
&& dev->sa_firmware)
vector_no = aac_get_vector(dev);
else {
if (!fib->vector_no || !fib->callback_data) {
if (shost && dev->use_map_queue) {
qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
vector_no = qmap->mq_map[raw_smp_processor_id()];
}
/*
* We hardcode the vector_no for
* reserved commands as a valid shost is
* absent during the init
*/
else
vector_no = 0;
} else {
scmd = (struct scsi_cmnd *)fib->callback_data;
blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd));
vector_no = blk_mq_unique_tag_to_hwq(blk_tag);
}
}
if (native_hba) {
if (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF) {
struct aac_hba_tm_req *tm_req;
tm_req = (struct aac_hba_tm_req *)
fib->hw_fib_va;
if (tm_req->iu_type ==
HBA_IU_TYPE_SCSI_TM_REQ) {
((struct aac_hba_tm_req *)
fib->hw_fib_va)->reply_qid
= vector_no;
((struct aac_hba_tm_req *)
fib->hw_fib_va)->request_id
+= (vector_no << 16);
} else {
((struct aac_hba_reset_req *)
fib->hw_fib_va)->reply_qid
= vector_no;
((struct aac_hba_reset_req *)
fib->hw_fib_va)->request_id
+= (vector_no << 16);
}
} else {
((struct aac_hba_cmd_req *)
fib->hw_fib_va)->reply_qid
= vector_no;
((struct aac_hba_cmd_req *)
fib->hw_fib_va)->request_id
+= (vector_no << 16);
}
} else {
fib->hw_fib_va->header.Handle += (vector_no << 16);
}
} else {
vector_no = 0;
}
atomic_inc(&dev->rrq_outstanding[vector_no]);
if (native_hba) {
address = fib->hw_fib_pa;
fibsize = (fib->hbacmd_size + 127) / 128 - 1;
if (fibsize > 31)
fibsize = 31;
address |= fibsize;
#if defined(writeq)
src_writeq(dev, MUnit.IQN_L, (u64)address);
#else
spin_lock_irqsave(&fib->dev->iq_lock, flags);
src_writel(dev, MUnit.IQN_H,
upper_32_bits(address) & 0xffffffff);
src_writel(dev, MUnit.IQN_L, address & 0xffffffff);
spin_unlock_irqrestore(&fib->dev->iq_lock, flags);
#endif
} else {
if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 ||
dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) {
/* Calculate the amount to the fibsize bits */
fibsize = (le16_to_cpu(fib->hw_fib_va->header.Size)
+ 127) / 128 - 1;
/* New FIB header, 32-bit */
address = fib->hw_fib_pa;
fib->hw_fib_va->header.StructType = FIB_MAGIC2;
fib->hw_fib_va->header.SenderFibAddress =
cpu_to_le32((u32)address);
fib->hw_fib_va->header.u.TimeStamp = 0;
WARN_ON(upper_32_bits(address) != 0L);
} else {
/* Calculate the amount to the fibsize bits */
fibsize = (sizeof(struct aac_fib_xporthdr) +
le16_to_cpu(fib->hw_fib_va->header.Size)
+ 127) / 128 - 1;
/* Fill XPORT header */
pFibX = (struct aac_fib_xporthdr *)
((unsigned char *)fib->hw_fib_va -
sizeof(struct aac_fib_xporthdr));
pFibX->Handle = fib->hw_fib_va->header.Handle;
pFibX->HostAddress =
cpu_to_le64((u64)fib->hw_fib_pa);
pFibX->Size = cpu_to_le32(
le16_to_cpu(fib->hw_fib_va->header.Size));
address = fib->hw_fib_pa -
(u64)sizeof(struct aac_fib_xporthdr);
}
if (fibsize > 31)
fibsize = 31;
address |= fibsize;
#if defined(writeq)
src_writeq(dev, MUnit.IQ_L, (u64)address);
#else
spin_lock_irqsave(&fib->dev->iq_lock, flags);
src_writel(dev, MUnit.IQ_H,
upper_32_bits(address) & 0xffffffff);
src_writel(dev, MUnit.IQ_L, address & 0xffffffff);
spin_unlock_irqrestore(&fib->dev->iq_lock, flags);
#endif
}
return 0;
}
/**
* aac_src_ioremap
* @dev: device ioremap
* @size: mapping resize request
*
*/
static int aac_src_ioremap(struct aac_dev *dev, u32 size)
{
if (!size) {
iounmap(dev->regs.src.bar1);
dev->regs.src.bar1 = NULL;
iounmap(dev->regs.src.bar0);
dev->base = dev->regs.src.bar0 = NULL;
return 0;
}
dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2),
AAC_MIN_SRC_BAR1_SIZE);
dev->base = NULL;
if (dev->regs.src.bar1 == NULL)
return -1;
dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size);
if (dev->base == NULL) {
iounmap(dev->regs.src.bar1);
dev->regs.src.bar1 = NULL;
return -1;
}
dev->IndexRegs = &((struct src_registers __iomem *)
dev->base)->u.tupelo.IndexRegs;
return 0;
}
/**
* aac_srcv_ioremap
* @dev: device ioremap
* @size: mapping resize request
*
*/
static int aac_srcv_ioremap(struct aac_dev *dev, u32 size)
{
if (!size) {
iounmap(dev->regs.src.bar0);
dev->base = dev->regs.src.bar0 = NULL;
return 0;
}
dev->regs.src.bar1 =
ioremap(pci_resource_start(dev->pdev, 2), AAC_MIN_SRCV_BAR1_SIZE);
dev->base = NULL;
if (dev->regs.src.bar1 == NULL)
return -1;
dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size);
if (dev->base == NULL) {
iounmap(dev->regs.src.bar1);
dev->regs.src.bar1 = NULL;
return -1;
}
dev->IndexRegs = &((struct src_registers __iomem *)
dev->base)->u.denali.IndexRegs;
return 0;
}
void aac_set_intx_mode(struct aac_dev *dev)
{
if (dev->msi_enabled) {
aac_src_access_devreg(dev, AAC_ENABLE_INTX);
dev->msi_enabled = 0;
msleep(5000); /* Delay 5 seconds */
}
}
static void aac_clear_omr(struct aac_dev *dev)
{
u32 omr_value = 0;
omr_value = src_readl(dev, MUnit.OMR);
/*
* Check for PCI Errors or Kernel Panic
*/
if ((omr_value == INVALID_OMR) || (omr_value & KERNEL_PANIC))
omr_value = 0;
/*
* Preserve MSIX Value if any
*/
src_writel(dev, MUnit.OMR, omr_value & AAC_INT_MODE_MSIX);
src_readl(dev, MUnit.OMR);
}
static void aac_dump_fw_fib_iop_reset(struct aac_dev *dev)
{
__le32 supported_options3;
if (!aac_fib_dump)
return;
supported_options3 = dev->supplement_adapter_info.supported_options3;
if (!(supported_options3 & AAC_OPTION_SUPPORTED3_IOP_RESET_FIB_DUMP))
return;
aac_adapter_sync_cmd(dev, IOP_RESET_FW_FIB_DUMP,
0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
}
static bool aac_is_ctrl_up_and_running(struct aac_dev *dev)
{
bool ctrl_up = true;
unsigned long status, start;
bool is_up = false;
start = jiffies;
do {
schedule();
status = src_readl(dev, MUnit.OMR);
if (status == 0xffffffff)
status = 0;
if (status & KERNEL_BOOTING) {
start = jiffies;
continue;
}
if (time_after(jiffies, start+HZ*SOFT_RESET_TIME)) {
ctrl_up = false;
break;
}
is_up = status & KERNEL_UP_AND_RUNNING;
} while (!is_up);
return ctrl_up;
}
static void aac_src_drop_io(struct aac_dev *dev)
{
if (!dev->soft_reset_support)
return;
aac_adapter_sync_cmd(dev, DROP_IO,
0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
}
static void aac_notify_fw_of_iop_reset(struct aac_dev *dev)
{
aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, 0, 0, 0, 0, 0, 0, NULL,
NULL, NULL, NULL, NULL);
aac_src_drop_io(dev);
}
static void aac_send_iop_reset(struct aac_dev *dev)
{
aac_dump_fw_fib_iop_reset(dev);
aac_notify_fw_of_iop_reset(dev);
aac_set_intx_mode(dev);
aac_clear_omr(dev);
src_writel(dev, MUnit.IDR, IOP_SRC_RESET_MASK);
msleep(5000);
}
static void aac_send_hardware_soft_reset(struct aac_dev *dev)
{
u_int32_t val;
aac_clear_omr(dev);
val = readl(((char *)(dev->base) + IBW_SWR_OFFSET));
val |= 0x01;
writel(val, ((char *)(dev->base) + IBW_SWR_OFFSET));
msleep_interruptible(20000);
}
static int aac_src_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
{
bool is_ctrl_up;
int ret = 0;
if (bled < 0)
goto invalid_out;
if (bled)
dev_err(&dev->pdev->dev, "adapter kernel panic'd %x.\n", bled);
/*
* When there is a BlinkLED, IOP_RESET has not effect
*/
if (bled >= 2 && dev->sa_firmware && reset_type & HW_IOP_RESET)
reset_type &= ~HW_IOP_RESET;
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
dev_err(&dev->pdev->dev, "Controller reset type is %d\n", reset_type);
if (reset_type & HW_IOP_RESET) {
dev_info(&dev->pdev->dev, "Issuing IOP reset\n");
aac_send_iop_reset(dev);
/*
* Creates a delay or wait till up and running comes thru
*/
is_ctrl_up = aac_is_ctrl_up_and_running(dev);
if (!is_ctrl_up)
dev_err(&dev->pdev->dev, "IOP reset failed\n");
else {
dev_info(&dev->pdev->dev, "IOP reset succeeded\n");
goto set_startup;
}
}
if (!dev->sa_firmware) {
dev_err(&dev->pdev->dev, "ARC Reset attempt failed\n");
ret = -ENODEV;
goto out;
}
if (reset_type & HW_SOFT_RESET) {
dev_info(&dev->pdev->dev, "Issuing SOFT reset\n");
aac_send_hardware_soft_reset(dev);
dev->msi_enabled = 0;
is_ctrl_up = aac_is_ctrl_up_and_running(dev);
if (!is_ctrl_up) {
dev_err(&dev->pdev->dev, "SOFT reset failed\n");
ret = -ENODEV;
goto out;
} else
dev_info(&dev->pdev->dev, "SOFT reset succeeded\n");
}
set_startup:
if (startup_timeout < 300)
startup_timeout = 300;
out:
return ret;
invalid_out:
if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC)
ret = -ENODEV;
goto out;
}
/**
* aac_src_select_comm - Select communications method
* @dev: Adapter
* @comm: communications method
*/
static int aac_src_select_comm(struct aac_dev *dev, int comm)
{
switch (comm) {
case AAC_COMM_MESSAGE:
dev->a_ops.adapter_intr = aac_src_intr_message;
dev->a_ops.adapter_deliver = aac_src_deliver_message;
break;
default:
return 1;
}
return 0;
}
/**
* aac_src_init - initialize an Cardinal Frey Bar card
* @dev: device to configure
*
*/
int aac_src_init(struct aac_dev *dev)
{
unsigned long start;
unsigned long status;
int restart = 0;
int instance = dev->id;
const char *name = dev->name;
dev->a_ops.adapter_ioremap = aac_src_ioremap;
dev->a_ops.adapter_comm = aac_src_select_comm;
dev->base_size = AAC_MIN_SRC_BAR0_SIZE;
if (aac_adapter_ioremap(dev, dev->base_size)) {
printk(KERN_WARNING "%s: unable to map adapter.\n", name);
goto error_iounmap;
}
/* Failure to reset here is an option ... */
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
if (dev->init_reset) {
dev->init_reset = false;
if (!aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET))
++restart;
}
/*
* Check to see if the board panic'd while booting.
*/
status = src_readl(dev, MUnit.OMR);
if (status & KERNEL_PANIC) {
if (aac_src_restart_adapter(dev,
aac_src_check_health(dev), IOP_HWSOFT_RESET))
goto error_iounmap;
++restart;
}
/*
* Check to see if the board failed any self tests.
*/
status = src_readl(dev, MUnit.OMR);
if (status & SELF_TEST_FAILED) {
printk(KERN_ERR "%s%d: adapter self-test failed.\n",
dev->name, instance);
goto error_iounmap;
}
/*
* Check to see if the monitor panic'd while booting.
*/
if (status & MONITOR_PANIC) {
printk(KERN_ERR "%s%d: adapter monitor panic.\n",
dev->name, instance);
goto error_iounmap;
}
start = jiffies;
/*
* Wait for the adapter to be up and running. Wait up to 3 minutes
*/
while (!((status = src_readl(dev, MUnit.OMR)) &
KERNEL_UP_AND_RUNNING)) {
if ((restart &&
(status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
time_after(jiffies, start+HZ*startup_timeout)) {
printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
dev->name, instance, status);
goto error_iounmap;
}
if (!restart &&
((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
time_after(jiffies, start + HZ *
((startup_timeout > 60)
? (startup_timeout - 60)
: (startup_timeout / 2))))) {
if (likely(!aac_src_restart_adapter(dev,
aac_src_check_health(dev), IOP_HWSOFT_RESET)))
start = jiffies;
++restart;
}
msleep(1);
}
if (restart && aac_commit)
aac_commit = 1;
/*
* Fill in the common function dispatch table.
*/
dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
dev->a_ops.adapter_notify = aac_src_notify_adapter;
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
dev->a_ops.adapter_check_health = aac_src_check_health;
dev->a_ops.adapter_restart = aac_src_restart_adapter;
dev->a_ops.adapter_start = aac_src_start_adapter;
/*
* First clear out all interrupts. Then enable the one's that we
* can handle.
*/
aac_adapter_comm(dev, AAC_COMM_MESSAGE);
aac_adapter_disable_int(dev);
src_writel(dev, MUnit.ODR_C, 0xffffffff);
aac_adapter_enable_int(dev);
if (aac_init_adapter(dev) == NULL)
goto error_iounmap;
if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1)
goto error_iounmap;
dev->msi = !pci_enable_msi(dev->pdev);
dev->aac_msix[0].vector_no = 0;
dev->aac_msix[0].dev = dev;
if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
IRQF_SHARED, "aacraid", &(dev->aac_msix[0])) < 0) {
if (dev->msi)
pci_disable_msi(dev->pdev);
printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
name, instance);
goto error_iounmap;
}
dev->dbg_base = pci_resource_start(dev->pdev, 2);
dev->dbg_base_mapped = dev->regs.src.bar1;
dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
aac_adapter_enable_int(dev);
if (!dev->sync_mode) {
/*
* Tell the adapter that all is configured, and it can
* start accepting requests
*/
aac_src_start_adapter(dev);
}
return 0;
error_iounmap:
return -1;
}
static int aac_src_wait_sync(struct aac_dev *dev, int *status)
{
unsigned long start = jiffies;
unsigned long usecs = 0;
int delay = 5 * HZ;
int rc = 1;
while (time_before(jiffies, start+delay)) {
/*
* Delay 5 microseconds to let Mon960 get info.
*/
udelay(5);
/*
* Mon960 will set doorbell0 bit when it has completed the
* command.
*/
if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) {
/*
* Clear: the doorbell.
*/
if (dev->msi_enabled)
aac_src_access_devreg(dev, AAC_CLEAR_SYNC_BIT);
else
src_writel(dev, MUnit.ODR_C,
OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
rc = 0;
break;
}
/*
* Yield the processor in case we are slow
*/
usecs = 1 * USEC_PER_MSEC;
usleep_range(usecs, usecs + 50);
}
/*
* Pull the synch status from Mailbox 0.
*/
if (status && !rc) {
status[0] = readl(&dev->IndexRegs->Mailbox[0]);
status[1] = readl(&dev->IndexRegs->Mailbox[1]);
status[2] = readl(&dev->IndexRegs->Mailbox[2]);
status[3] = readl(&dev->IndexRegs->Mailbox[3]);
status[4] = readl(&dev->IndexRegs->Mailbox[4]);
}
return rc;
}
/**
* aac_src_soft_reset - perform soft reset to speed up
* access
*
* Assumptions: That the controller is in a state where we can
* bring it back to life with an init struct. We can only use
* fast sync commands, as the timeout is 5 seconds.
*
* @dev: device to configure
*
*/
static int aac_src_soft_reset(struct aac_dev *dev)
{
u32 status_omr = src_readl(dev, MUnit.OMR);
u32 status[5];
int rc = 1;
int state = 0;
char *state_str[7] = {
"GET_ADAPTER_PROPERTIES Failed",
"GET_ADAPTER_PROPERTIES timeout",
"SOFT_RESET not supported",
"DROP_IO Failed",
"DROP_IO timeout",
"Check Health failed"
};
if (status_omr == INVALID_OMR)
return 1; // pcie hosed
if (!(status_omr & KERNEL_UP_AND_RUNNING))
return 1; // not up and running
/*
* We go into soft reset mode to allow us to handle response
*/
dev->in_soft_reset = 1;
dev->msi_enabled = status_omr & AAC_INT_MODE_MSIX;
/* Get adapter properties */
rc = aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 0, 0, 0,
0, 0, 0, status+0, status+1, status+2, status+3, status+4);
if (rc)
goto out;
state++;
if (aac_src_wait_sync(dev, status)) {
rc = 1;
goto out;
}
state++;
if (!(status[1] & le32_to_cpu(AAC_OPT_EXTENDED) &&
(status[4] & le32_to_cpu(AAC_EXTOPT_SOFT_RESET)))) {
rc = 2;
goto out;
}
if ((status[1] & le32_to_cpu(AAC_OPT_EXTENDED)) &&
(status[4] & le32_to_cpu(AAC_EXTOPT_SA_FIRMWARE)))
dev->sa_firmware = 1;
state++;
rc = aac_adapter_sync_cmd(dev, DROP_IO, 0, 0, 0, 0, 0, 0,
status+0, status+1, status+2, status+3, status+4);
if (rc)
goto out;
state++;
if (aac_src_wait_sync(dev, status)) {
rc = 3;
goto out;
}
if (status[1])
dev_err(&dev->pdev->dev, "%s: %d outstanding I/O pending\n",
__func__, status[1]);
state++;
rc = aac_src_check_health(dev);
out:
dev->in_soft_reset = 0;
dev->msi_enabled = 0;
if (rc)
dev_err(&dev->pdev->dev, "%s: %s status = %d", __func__,
state_str[state], rc);
return rc;
}
/**
* aac_srcv_init - initialize an SRCv card
* @dev: device to configure
*
*/
int aac_srcv_init(struct aac_dev *dev)
{
unsigned long start;
unsigned long status;
int restart = 0;
int instance = dev->id;
const char *name = dev->name;
dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
dev->a_ops.adapter_comm = aac_src_select_comm;
dev->base_size = AAC_MIN_SRCV_BAR0_SIZE;
if (aac_adapter_ioremap(dev, dev->base_size)) {
printk(KERN_WARNING "%s: unable to map adapter.\n", name);
goto error_iounmap;
}
/* Failure to reset here is an option ... */
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
if (dev->init_reset) {
dev->init_reset = false;
if (aac_src_soft_reset(dev)) {
aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET);
++restart;
}
}
/*
* Check to see if flash update is running.
* Wait for the adapter to be up and running. Wait up to 5 minutes
*/
status = src_readl(dev, MUnit.OMR);
if (status & FLASH_UPD_PENDING) {
start = jiffies;
do {
status = src_readl(dev, MUnit.OMR);
if (time_after(jiffies, start+HZ*FWUPD_TIMEOUT)) {
printk(KERN_ERR "%s%d: adapter flash update failed.\n",
dev->name, instance);
goto error_iounmap;
}
} while (!(status & FLASH_UPD_SUCCESS) &&
!(status & FLASH_UPD_FAILED));
/* Delay 10 seconds.
* Because right now FW is doing a soft reset,
* do not read scratch pad register at this time
*/
ssleep(10);
}
/*
* Check to see if the board panic'd while booting.
*/
status = src_readl(dev, MUnit.OMR);
if (status & KERNEL_PANIC) {
if (aac_src_restart_adapter(dev,
aac_src_check_health(dev), IOP_HWSOFT_RESET))
goto error_iounmap;
++restart;
}
/*
* Check to see if the board failed any self tests.
*/
status = src_readl(dev, MUnit.OMR);
if (status & SELF_TEST_FAILED) {
printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
goto error_iounmap;
}
/*
* Check to see if the monitor panic'd while booting.
*/
if (status & MONITOR_PANIC) {
printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
goto error_iounmap;
}
start = jiffies;
/*
* Wait for the adapter to be up and running. Wait up to 3 minutes
*/
do {
status = src_readl(dev, MUnit.OMR);
if (status == INVALID_OMR)
status = 0;
if ((restart &&
(status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
time_after(jiffies, start+HZ*startup_timeout)) {
printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
dev->name, instance, status);
goto error_iounmap;
}
if (!restart &&
((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
time_after(jiffies, start + HZ *
((startup_timeout > 60)
? (startup_timeout - 60)
: (startup_timeout / 2))))) {
if (likely(!aac_src_restart_adapter(dev,
aac_src_check_health(dev), IOP_HWSOFT_RESET)))
start = jiffies;
++restart;
}
msleep(1);
} while (!(status & KERNEL_UP_AND_RUNNING));
if (restart && aac_commit)
aac_commit = 1;
/*
* Fill in the common function dispatch table.
*/
dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
dev->a_ops.adapter_notify = aac_src_notify_adapter;
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
dev->a_ops.adapter_check_health = aac_src_check_health;
dev->a_ops.adapter_restart = aac_src_restart_adapter;
dev->a_ops.adapter_start = aac_src_start_adapter;
/*
* First clear out all interrupts. Then enable the one's that we
* can handle.
*/
aac_adapter_comm(dev, AAC_COMM_MESSAGE);
aac_adapter_disable_int(dev);
src_writel(dev, MUnit.ODR_C, 0xffffffff);
aac_adapter_enable_int(dev);
if (aac_init_adapter(dev) == NULL)
goto error_iounmap;
if ((dev->comm_interface != AAC_COMM_MESSAGE_TYPE2) &&
(dev->comm_interface != AAC_COMM_MESSAGE_TYPE3))
goto error_iounmap;
if (dev->msi_enabled)
aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
if (aac_acquire_irq(dev))
goto error_iounmap;
dev->dbg_base = pci_resource_start(dev->pdev, 2);
dev->dbg_base_mapped = dev->regs.src.bar1;
dev->dbg_size = AAC_MIN_SRCV_BAR1_SIZE;
dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
aac_adapter_enable_int(dev);
if (!dev->sync_mode) {
/*
* Tell the adapter that all is configured, and it can
* start accepting requests
*/
aac_src_start_adapter(dev);
}
return 0;
error_iounmap:
return -1;
}
void aac_src_access_devreg(struct aac_dev *dev, int mode)
{
u_int32_t val;
switch (mode) {
case AAC_ENABLE_INTERRUPT:
src_writel(dev,
MUnit.OIMR,
dev->OIMR = (dev->msi_enabled ?
AAC_INT_ENABLE_TYPE1_MSIX :
AAC_INT_ENABLE_TYPE1_INTX));
break;
case AAC_DISABLE_INTERRUPT:
src_writel(dev,
MUnit.OIMR,
dev->OIMR = AAC_INT_DISABLE_ALL);
break;
case AAC_ENABLE_MSIX:
/* set bit 6 */
val = src_readl(dev, MUnit.IDR);
val |= 0x40;
src_writel(dev, MUnit.IDR, val);
src_readl(dev, MUnit.IDR);
/* unmask int. */
val = PMC_ALL_INTERRUPT_BITS;
src_writel(dev, MUnit.IOAR, val);
val = src_readl(dev, MUnit.OIMR);
src_writel(dev,
MUnit.OIMR,
val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0)));
break;
case AAC_DISABLE_MSIX:
/* reset bit 6 */
val = src_readl(dev, MUnit.IDR);
val &= ~0x40;
src_writel(dev, MUnit.IDR, val);
src_readl(dev, MUnit.IDR);
break;
case AAC_CLEAR_AIF_BIT:
/* set bit 5 */
val = src_readl(dev, MUnit.IDR);
val |= 0x20;
src_writel(dev, MUnit.IDR, val);
src_readl(dev, MUnit.IDR);
break;
case AAC_CLEAR_SYNC_BIT:
/* set bit 4 */
val = src_readl(dev, MUnit.IDR);
val |= 0x10;
src_writel(dev, MUnit.IDR, val);
src_readl(dev, MUnit.IDR);
break;
case AAC_ENABLE_INTX:
/* set bit 7 */
val = src_readl(dev, MUnit.IDR);
val |= 0x80;
src_writel(dev, MUnit.IDR, val);
src_readl(dev, MUnit.IDR);
/* unmask int. */
val = PMC_ALL_INTERRUPT_BITS;
src_writel(dev, MUnit.IOAR, val);
src_readl(dev, MUnit.IOAR);
val = src_readl(dev, MUnit.OIMR);
src_writel(dev, MUnit.OIMR,
val & (~(PMC_GLOBAL_INT_BIT2)));
break;
default:
break;
}
}
static int aac_src_get_sync_status(struct aac_dev *dev)
{
int msix_val = 0;
int legacy_val = 0;
msix_val = src_readl(dev, MUnit.ODR_MSI) & SRC_MSI_READ_MASK ? 1 : 0;
if (!dev->msi_enabled) {
/*
* if Legacy int status indicates cmd is not complete
* sample MSIx register to see if it indiactes cmd complete,
* if yes set the controller in MSIx mode and consider cmd
* completed
*/
legacy_val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT;
if (!(legacy_val & 1) && msix_val)
dev->msi_enabled = 1;
return legacy_val;
}
return msix_val;
}
|
linux-master
|
drivers/scsi/aacraid/src.c
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Adaptec AAC series RAID controller driver
* (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
* Copyright (c) 2000-2010 Adaptec, Inc.
* 2010-2015 PMC-Sierra, Inc. ([email protected])
* 2016-2017 Microsemi Corp. ([email protected])
*
* Module Name:
* sa.c
*
* Abstract: Drawbridge specific support functions
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/completion.h>
#include <linux/time.h>
#include <linux/interrupt.h>
#include <scsi/scsi_host.h>
#include "aacraid.h"
static irqreturn_t aac_sa_intr(int irq, void *dev_id)
{
struct aac_dev *dev = dev_id;
unsigned short intstat, mask;
intstat = sa_readw(dev, DoorbellReg_p);
/*
* Read mask and invert because drawbridge is reversed.
* This allows us to only service interrupts that have been enabled.
*/
mask = ~(sa_readw(dev, SaDbCSR.PRISETIRQMASK));
/* Check to see if this is our interrupt. If it isn't just return */
if (intstat & mask) {
if (intstat & PrintfReady) {
aac_printf(dev, sa_readl(dev, Mailbox5));
sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
sa_writew(dev, DoorbellReg_s, PrintfDone);
} else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready
sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
} else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready
sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
} else if (intstat & DOORBELL_3) { // dev -> Host Normal Command Not Full
sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
} else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full
sa_writew(dev, DoorbellClrReg_p, DOORBELL_4);
}
return IRQ_HANDLED;
}
return IRQ_NONE;
}
/**
* aac_sa_disable_interrupt - disable interrupt
* @dev: Which adapter to enable.
*/
static void aac_sa_disable_interrupt (struct aac_dev *dev)
{
sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
}
/**
* aac_sa_enable_interrupt - enable interrupt
* @dev: Which adapter to enable.
*/
static void aac_sa_enable_interrupt (struct aac_dev *dev)
{
sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 |
DOORBELL_2 | DOORBELL_3 | DOORBELL_4));
}
/**
* aac_sa_notify_adapter - handle adapter notification
* @dev: Adapter that notification is for
* @event: Event to notidy
*
* Notify the adapter of an event
*/
static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
{
switch (event) {
case AdapNormCmdQue:
sa_writew(dev, DoorbellReg_s,DOORBELL_1);
break;
case HostNormRespNotFull:
sa_writew(dev, DoorbellReg_s,DOORBELL_4);
break;
case AdapNormRespQue:
sa_writew(dev, DoorbellReg_s,DOORBELL_2);
break;
case HostNormCmdNotFull:
sa_writew(dev, DoorbellReg_s,DOORBELL_3);
break;
case HostShutdown:
/*
sa_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
*/
break;
case FastIo:
sa_writew(dev, DoorbellReg_s,DOORBELL_6);
break;
case AdapPrintfDone:
sa_writew(dev, DoorbellReg_s,DOORBELL_5);
break;
default:
BUG();
break;
}
}
/**
* sa_sync_cmd - send a command and wait
* @dev: Adapter
* @command: Command to execute
* @p1: first parameter
* @p2: second parameter
* @p3: third parameter
* @p4: forth parameter
* @p5: fifth parameter
* @p6: sixth parameter
* @ret: adapter status
* @r1: first return value
* @r2: second return value
* @r3: third return value
* @r4: forth return value
*
* This routine will send a synchronous command to the adapter and wait
* for its completion.
*/
static int sa_sync_cmd(struct aac_dev *dev, u32 command,
u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
u32 *ret, u32 *r1, u32 *r2, u32 *r3, u32 *r4)
{
unsigned long start;
int ok;
/*
* Write the Command into Mailbox 0
*/
sa_writel(dev, Mailbox0, command);
/*
* Write the parameters into Mailboxes 1 - 4
*/
sa_writel(dev, Mailbox1, p1);
sa_writel(dev, Mailbox2, p2);
sa_writel(dev, Mailbox3, p3);
sa_writel(dev, Mailbox4, p4);
/*
* Clear the synch command doorbell to start on a clean slate.
*/
sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
/*
* Signal that there is a new synch command
*/
sa_writew(dev, DoorbellReg_s, DOORBELL_0);
ok = 0;
start = jiffies;
while(time_before(jiffies, start+30*HZ))
{
/*
* Delay 5uS so that the monitor gets access
*/
udelay(5);
/*
* Mon110 will set doorbell0 bit when it has
* completed the command.
*/
if(sa_readw(dev, DoorbellReg_p) & DOORBELL_0) {
ok = 1;
break;
}
msleep(1);
}
if (ok != 1)
return -ETIMEDOUT;
/*
* Clear the synch command doorbell.
*/
sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
/*
* Pull the synch status from Mailbox 0.
*/
if (ret)
*ret = sa_readl(dev, Mailbox0);
if (r1)
*r1 = sa_readl(dev, Mailbox1);
if (r2)
*r2 = sa_readl(dev, Mailbox2);
if (r3)
*r3 = sa_readl(dev, Mailbox3);
if (r4)
*r4 = sa_readl(dev, Mailbox4);
return 0;
}
/**
* aac_sa_interrupt_adapter - interrupt an adapter
* @dev: Which adapter to enable.
*
* Breakpoint an adapter.
*/
static void aac_sa_interrupt_adapter (struct aac_dev *dev)
{
sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
}
/**
* aac_sa_start_adapter - activate adapter
* @dev: Adapter
*
* Start up processing on an ARM based AAC adapter
*/
static void aac_sa_start_adapter(struct aac_dev *dev)
{
union aac_init *init;
/*
* Fill in the remaining pieces of the init.
*/
init = dev->init;
init->r7.host_elapsed_seconds = cpu_to_le32(ktime_get_real_seconds());
/* We can only use a 32 bit address here */
sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
(u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
NULL, NULL, NULL, NULL, NULL);
}
static int aac_sa_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
{
return -EINVAL;
}
/**
* aac_sa_check_health
* @dev: device to check if healthy
*
* Will attempt to determine if the specified adapter is alive and
* capable of handling requests, returning 0 if alive.
*/
static int aac_sa_check_health(struct aac_dev *dev)
{
long status = sa_readl(dev, Mailbox7);
/*
* Check to see if the board failed any self tests.
*/
if (status & SELF_TEST_FAILED)
return -1;
/*
* Check to see if the board panic'd while booting.
*/
if (status & KERNEL_PANIC)
return -2;
/*
* Wait for the adapter to be up and running. Wait up to 3 minutes
*/
if (!(status & KERNEL_UP_AND_RUNNING))
return -3;
/*
* Everything is OK
*/
return 0;
}
/**
* aac_sa_ioremap
* @dev: device to ioremap
* @size: mapping resize request
*
*/
static int aac_sa_ioremap(struct aac_dev * dev, u32 size)
{
if (!size) {
iounmap(dev->regs.sa);
return 0;
}
dev->base = dev->regs.sa = ioremap(dev->base_start, size);
return (dev->base == NULL) ? -1 : 0;
}
/**
* aac_sa_init - initialize an ARM based AAC card
* @dev: device to configure
*
* Allocate and set up resources for the ARM based AAC variants. The
* device_interface in the commregion will be allocated and linked
* to the comm region.
*/
int aac_sa_init(struct aac_dev *dev)
{
unsigned long start;
unsigned long status;
int instance;
const char *name;
instance = dev->id;
name = dev->name;
/*
* Fill in the function dispatch table.
*/
dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
dev->a_ops.adapter_enable_int = aac_sa_enable_interrupt;
dev->a_ops.adapter_notify = aac_sa_notify_adapter;
dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
dev->a_ops.adapter_check_health = aac_sa_check_health;
dev->a_ops.adapter_restart = aac_sa_restart_adapter;
dev->a_ops.adapter_start = aac_sa_start_adapter;
dev->a_ops.adapter_intr = aac_sa_intr;
dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
dev->a_ops.adapter_ioremap = aac_sa_ioremap;
if (aac_sa_ioremap(dev, dev->base_size)) {
printk(KERN_WARNING "%s: unable to map adapter.\n", name);
goto error_iounmap;
}
/*
* Check to see if the board failed any self tests.
*/
if (sa_readl(dev, Mailbox7) & SELF_TEST_FAILED) {
printk(KERN_WARNING "%s%d: adapter self-test failed.\n", name, instance);
goto error_iounmap;
}
/*
* Check to see if the board panic'd while booting.
*/
if (sa_readl(dev, Mailbox7) & KERNEL_PANIC) {
printk(KERN_WARNING "%s%d: adapter kernel panic'd.\n", name, instance);
goto error_iounmap;
}
start = jiffies;
/*
* Wait for the adapter to be up and running. Wait up to 3 minutes.
*/
while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) {
if (time_after(jiffies, start+startup_timeout*HZ)) {
status = sa_readl(dev, Mailbox7);
printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %lx.\n",
name, instance, status);
goto error_iounmap;
}
msleep(1);
}
/*
* First clear out all interrupts. Then enable the one's that
* we can handle.
*/
aac_adapter_disable_int(dev);
aac_adapter_enable_int(dev);
if(aac_init_adapter(dev) == NULL)
goto error_irq;
dev->sync_mode = 0; /* sync. mode not supported */
if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
IRQF_SHARED, "aacraid", (void *)dev) < 0) {
printk(KERN_WARNING "%s%d: Interrupt unavailable.\n",
name, instance);
goto error_iounmap;
}
dev->dbg_base = dev->base_start;
dev->dbg_base_mapped = dev->base;
dev->dbg_size = dev->base_size;
aac_adapter_enable_int(dev);
/*
* Tell the adapter that all is configure, and it can start
* accepting requests
*/
aac_sa_start_adapter(dev);
return 0;
error_irq:
aac_sa_disable_interrupt(dev);
free_irq(dev->pdev->irq, (void *)dev);
error_iounmap:
return -1;
}
|
linux-master
|
drivers/scsi/aacraid/sa.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_init.c
* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])mpt3sas/mpt3sas_trigger_diag.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "esas2r.h"
static bool esas2r_initmem_alloc(struct esas2r_adapter *a,
struct esas2r_mem_desc *mem_desc,
u32 align)
{
mem_desc->esas2r_param = mem_desc->size + align;
mem_desc->virt_addr = NULL;
mem_desc->phys_addr = 0;
mem_desc->esas2r_data = dma_alloc_coherent(&a->pcid->dev,
(size_t)mem_desc->
esas2r_param,
(dma_addr_t *)&mem_desc->
phys_addr,
GFP_KERNEL);
if (mem_desc->esas2r_data == NULL) {
esas2r_log(ESAS2R_LOG_CRIT,
"failed to allocate %lu bytes of consistent memory!",
(long
unsigned
int)mem_desc->esas2r_param);
return false;
}
mem_desc->virt_addr = PTR_ALIGN(mem_desc->esas2r_data, align);
mem_desc->phys_addr = ALIGN(mem_desc->phys_addr, align);
memset(mem_desc->virt_addr, 0, mem_desc->size);
return true;
}
static void esas2r_initmem_free(struct esas2r_adapter *a,
struct esas2r_mem_desc *mem_desc)
{
if (mem_desc->virt_addr == NULL)
return;
/*
* Careful! phys_addr and virt_addr may have been adjusted from the
* original allocation in order to return the desired alignment. That
* means we have to use the original address (in esas2r_data) and size
* (esas2r_param) and calculate the original physical address based on
* the difference between the requested and actual allocation size.
*/
if (mem_desc->phys_addr) {
int unalign = ((u8 *)mem_desc->virt_addr) -
((u8 *)mem_desc->esas2r_data);
dma_free_coherent(&a->pcid->dev,
(size_t)mem_desc->esas2r_param,
mem_desc->esas2r_data,
(dma_addr_t)(mem_desc->phys_addr - unalign));
} else {
kfree(mem_desc->esas2r_data);
}
mem_desc->virt_addr = NULL;
}
static bool alloc_vda_req(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_mem_desc *memdesc = kzalloc(
sizeof(struct esas2r_mem_desc), GFP_KERNEL);
if (memdesc == NULL) {
esas2r_hdebug("could not alloc mem for vda request memdesc\n");
return false;
}
memdesc->size = sizeof(union atto_vda_req) +
ESAS2R_DATA_BUF_LEN;
if (!esas2r_initmem_alloc(a, memdesc, 256)) {
esas2r_hdebug("could not alloc mem for vda request\n");
kfree(memdesc);
return false;
}
a->num_vrqs++;
list_add(&memdesc->next_desc, &a->vrq_mds_head);
rq->vrq_md = memdesc;
rq->vrq = (union atto_vda_req *)memdesc->virt_addr;
rq->vrq->scsi.handle = a->num_vrqs;
return true;
}
static void esas2r_unmap_regions(struct esas2r_adapter *a)
{
if (a->regs)
iounmap((void __iomem *)a->regs);
a->regs = NULL;
pci_release_region(a->pcid, 2);
if (a->data_window)
iounmap((void __iomem *)a->data_window);
a->data_window = NULL;
pci_release_region(a->pcid, 0);
}
static int esas2r_map_regions(struct esas2r_adapter *a)
{
int error;
a->regs = NULL;
a->data_window = NULL;
error = pci_request_region(a->pcid, 2, a->name);
if (error != 0) {
esas2r_log(ESAS2R_LOG_CRIT,
"pci_request_region(2) failed, error %d",
error);
return error;
}
a->regs = (void __force *)ioremap(pci_resource_start(a->pcid, 2),
pci_resource_len(a->pcid, 2));
if (a->regs == NULL) {
esas2r_log(ESAS2R_LOG_CRIT,
"ioremap failed for regs mem region\n");
pci_release_region(a->pcid, 2);
return -EFAULT;
}
error = pci_request_region(a->pcid, 0, a->name);
if (error != 0) {
esas2r_log(ESAS2R_LOG_CRIT,
"pci_request_region(2) failed, error %d",
error);
esas2r_unmap_regions(a);
return error;
}
a->data_window = (void __force *)ioremap(pci_resource_start(a->pcid,
0),
pci_resource_len(a->pcid, 0));
if (a->data_window == NULL) {
esas2r_log(ESAS2R_LOG_CRIT,
"ioremap failed for data_window mem region\n");
esas2r_unmap_regions(a);
return -EFAULT;
}
return 0;
}
static void esas2r_setup_interrupts(struct esas2r_adapter *a, int intr_mode)
{
int i;
/* Set up interrupt mode based on the requested value */
switch (intr_mode) {
case INTR_MODE_LEGACY:
use_legacy_interrupts:
a->intr_mode = INTR_MODE_LEGACY;
break;
case INTR_MODE_MSI:
i = pci_enable_msi(a->pcid);
if (i != 0) {
esas2r_log(ESAS2R_LOG_WARN,
"failed to enable MSI for adapter %d, "
"falling back to legacy interrupts "
"(err=%d)", a->index,
i);
goto use_legacy_interrupts;
}
a->intr_mode = INTR_MODE_MSI;
set_bit(AF2_MSI_ENABLED, &a->flags2);
break;
default:
esas2r_log(ESAS2R_LOG_WARN,
"unknown interrupt_mode %d requested, "
"falling back to legacy interrupt",
interrupt_mode);
goto use_legacy_interrupts;
}
}
static void esas2r_claim_interrupts(struct esas2r_adapter *a)
{
unsigned long flags = 0;
if (a->intr_mode == INTR_MODE_LEGACY)
flags |= IRQF_SHARED;
esas2r_log(ESAS2R_LOG_INFO,
"esas2r_claim_interrupts irq=%d (%p, %s, %lx)",
a->pcid->irq, a, a->name, flags);
if (request_irq(a->pcid->irq,
(a->intr_mode ==
INTR_MODE_LEGACY) ? esas2r_interrupt :
esas2r_msi_interrupt,
flags,
a->name,
a)) {
esas2r_log(ESAS2R_LOG_CRIT, "unable to request IRQ %02X",
a->pcid->irq);
return;
}
set_bit(AF2_IRQ_CLAIMED, &a->flags2);
esas2r_log(ESAS2R_LOG_INFO,
"claimed IRQ %d flags: 0x%lx",
a->pcid->irq, flags);
}
int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
int index)
{
struct esas2r_adapter *a;
u64 bus_addr = 0;
int i;
void *next_uncached;
struct esas2r_request *first_request, *last_request;
bool dma64 = false;
if (index >= MAX_ADAPTERS) {
esas2r_log(ESAS2R_LOG_CRIT,
"tried to init invalid adapter index %u!",
index);
return 0;
}
if (esas2r_adapters[index]) {
esas2r_log(ESAS2R_LOG_CRIT,
"tried to init existing adapter index %u!",
index);
return 0;
}
a = (struct esas2r_adapter *)host->hostdata;
memset(a, 0, sizeof(struct esas2r_adapter));
a->pcid = pcid;
a->host = host;
if (sizeof(dma_addr_t) > 4 &&
dma_get_required_mask(&pcid->dev) > DMA_BIT_MASK(32) &&
!dma_set_mask_and_coherent(&pcid->dev, DMA_BIT_MASK(64)))
dma64 = true;
if (!dma64 && dma_set_mask_and_coherent(&pcid->dev, DMA_BIT_MASK(32))) {
esas2r_log(ESAS2R_LOG_CRIT, "failed to set DMA mask");
esas2r_kill_adapter(index);
return 0;
}
esas2r_log_dev(ESAS2R_LOG_INFO, &pcid->dev,
"%s-bit PCI addressing enabled\n", dma64 ? "64" : "32");
esas2r_adapters[index] = a;
sprintf(a->name, ESAS2R_DRVR_NAME "_%02d", index);
esas2r_debug("new adapter %p, name %s", a, a->name);
spin_lock_init(&a->request_lock);
spin_lock_init(&a->fw_event_lock);
mutex_init(&a->fm_api_mutex);
mutex_init(&a->fs_api_mutex);
sema_init(&a->nvram_semaphore, 1);
esas2r_fw_event_off(a);
snprintf(a->fw_event_q_name, ESAS2R_KOBJ_NAME_LEN, "esas2r/%d",
a->index);
a->fw_event_q = create_singlethread_workqueue(a->fw_event_q_name);
init_waitqueue_head(&a->buffered_ioctl_waiter);
init_waitqueue_head(&a->nvram_waiter);
init_waitqueue_head(&a->fm_api_waiter);
init_waitqueue_head(&a->fs_api_waiter);
init_waitqueue_head(&a->vda_waiter);
INIT_LIST_HEAD(&a->general_req.req_list);
INIT_LIST_HEAD(&a->active_list);
INIT_LIST_HEAD(&a->defer_list);
INIT_LIST_HEAD(&a->free_sg_list_head);
INIT_LIST_HEAD(&a->avail_request);
INIT_LIST_HEAD(&a->vrq_mds_head);
INIT_LIST_HEAD(&a->fw_event_list);
first_request = (struct esas2r_request *)((u8 *)(a + 1));
for (last_request = first_request, i = 1; i < num_requests;
last_request++, i++) {
INIT_LIST_HEAD(&last_request->req_list);
list_add_tail(&last_request->comp_list, &a->avail_request);
if (!alloc_vda_req(a, last_request)) {
esas2r_log(ESAS2R_LOG_CRIT,
"failed to allocate a VDA request!");
esas2r_kill_adapter(index);
return 0;
}
}
esas2r_debug("requests: %p to %p (%d, %d)", first_request,
last_request,
sizeof(*first_request),
num_requests);
if (esas2r_map_regions(a) != 0) {
esas2r_log(ESAS2R_LOG_CRIT, "could not map PCI regions!");
esas2r_kill_adapter(index);
return 0;
}
a->index = index;
/* interrupts will be disabled until we are done with init */
atomic_inc(&a->dis_ints_cnt);
atomic_inc(&a->disable_cnt);
set_bit(AF_CHPRST_PENDING, &a->flags);
set_bit(AF_DISC_PENDING, &a->flags);
set_bit(AF_FIRST_INIT, &a->flags);
set_bit(AF_LEGACY_SGE_MODE, &a->flags);
a->init_msg = ESAS2R_INIT_MSG_START;
a->max_vdareq_size = 128;
a->build_sgl = esas2r_build_sg_list_sge;
esas2r_setup_interrupts(a, interrupt_mode);
a->uncached_size = esas2r_get_uncached_size(a);
a->uncached = dma_alloc_coherent(&pcid->dev,
(size_t)a->uncached_size,
(dma_addr_t *)&bus_addr,
GFP_KERNEL);
if (a->uncached == NULL) {
esas2r_log(ESAS2R_LOG_CRIT,
"failed to allocate %d bytes of consistent memory!",
a->uncached_size);
esas2r_kill_adapter(index);
return 0;
}
a->uncached_phys = bus_addr;
esas2r_debug("%d bytes uncached memory allocated @ %p (%x:%x)",
a->uncached_size,
a->uncached,
upper_32_bits(bus_addr),
lower_32_bits(bus_addr));
memset(a->uncached, 0, a->uncached_size);
next_uncached = a->uncached;
if (!esas2r_init_adapter_struct(a,
&next_uncached)) {
esas2r_log(ESAS2R_LOG_CRIT,
"failed to initialize adapter structure (2)!");
esas2r_kill_adapter(index);
return 0;
}
tasklet_init(&a->tasklet,
esas2r_adapter_tasklet,
(unsigned long)a);
/*
* Disable chip interrupts to prevent spurious interrupts
* until we claim the IRQ.
*/
esas2r_disable_chip_interrupts(a);
esas2r_check_adapter(a);
if (!esas2r_init_adapter_hw(a, true)) {
esas2r_log(ESAS2R_LOG_CRIT, "failed to initialize hardware!");
} else {
esas2r_debug("esas2r_init_adapter ok");
}
esas2r_claim_interrupts(a);
if (test_bit(AF2_IRQ_CLAIMED, &a->flags2))
esas2r_enable_chip_interrupts(a);
set_bit(AF2_INIT_DONE, &a->flags2);
if (!test_bit(AF_DEGRADED_MODE, &a->flags))
esas2r_kickoff_timer(a);
esas2r_debug("esas2r_init_adapter done for %p (%d)",
a, a->disable_cnt);
return 1;
}
static void esas2r_adapter_power_down(struct esas2r_adapter *a,
int power_management)
{
struct esas2r_mem_desc *memdesc, *next;
if ((test_bit(AF2_INIT_DONE, &a->flags2))
&& (!test_bit(AF_DEGRADED_MODE, &a->flags))) {
if (!power_management) {
del_timer_sync(&a->timer);
tasklet_kill(&a->tasklet);
}
esas2r_power_down(a);
/*
* There are versions of firmware that do not handle the sync
* cache command correctly. Stall here to ensure that the
* cache is lazily flushed.
*/
mdelay(500);
esas2r_debug("chip halted");
}
/* Remove sysfs binary files */
if (a->sysfs_fw_created) {
sysfs_remove_bin_file(&a->host->shost_dev.kobj, &bin_attr_fw);
a->sysfs_fw_created = 0;
}
if (a->sysfs_fs_created) {
sysfs_remove_bin_file(&a->host->shost_dev.kobj, &bin_attr_fs);
a->sysfs_fs_created = 0;
}
if (a->sysfs_vda_created) {
sysfs_remove_bin_file(&a->host->shost_dev.kobj, &bin_attr_vda);
a->sysfs_vda_created = 0;
}
if (a->sysfs_hw_created) {
sysfs_remove_bin_file(&a->host->shost_dev.kobj, &bin_attr_hw);
a->sysfs_hw_created = 0;
}
if (a->sysfs_live_nvram_created) {
sysfs_remove_bin_file(&a->host->shost_dev.kobj,
&bin_attr_live_nvram);
a->sysfs_live_nvram_created = 0;
}
if (a->sysfs_default_nvram_created) {
sysfs_remove_bin_file(&a->host->shost_dev.kobj,
&bin_attr_default_nvram);
a->sysfs_default_nvram_created = 0;
}
/* Clean up interrupts */
if (test_bit(AF2_IRQ_CLAIMED, &a->flags2)) {
esas2r_log_dev(ESAS2R_LOG_INFO,
&(a->pcid->dev),
"free_irq(%d) called", a->pcid->irq);
free_irq(a->pcid->irq, a);
esas2r_debug("IRQ released");
clear_bit(AF2_IRQ_CLAIMED, &a->flags2);
}
if (test_bit(AF2_MSI_ENABLED, &a->flags2)) {
pci_disable_msi(a->pcid);
clear_bit(AF2_MSI_ENABLED, &a->flags2);
esas2r_debug("MSI disabled");
}
if (a->inbound_list_md.virt_addr)
esas2r_initmem_free(a, &a->inbound_list_md);
if (a->outbound_list_md.virt_addr)
esas2r_initmem_free(a, &a->outbound_list_md);
list_for_each_entry_safe(memdesc, next, &a->free_sg_list_head,
next_desc) {
esas2r_initmem_free(a, memdesc);
}
/* Following frees everything allocated via alloc_vda_req */
list_for_each_entry_safe(memdesc, next, &a->vrq_mds_head, next_desc) {
esas2r_initmem_free(a, memdesc);
list_del(&memdesc->next_desc);
kfree(memdesc);
}
kfree(a->first_ae_req);
a->first_ae_req = NULL;
kfree(a->sg_list_mds);
a->sg_list_mds = NULL;
kfree(a->req_table);
a->req_table = NULL;
if (a->regs) {
esas2r_unmap_regions(a);
a->regs = NULL;
a->data_window = NULL;
esas2r_debug("regions unmapped");
}
}
/* Release/free allocated resources for specified adapters. */
void esas2r_kill_adapter(int i)
{
struct esas2r_adapter *a = esas2r_adapters[i];
if (a) {
unsigned long flags;
struct workqueue_struct *wq;
esas2r_debug("killing adapter %p [%d] ", a, i);
esas2r_fw_event_off(a);
esas2r_adapter_power_down(a, 0);
if (esas2r_buffered_ioctl &&
(a->pcid == esas2r_buffered_ioctl_pcid)) {
dma_free_coherent(&a->pcid->dev,
(size_t)esas2r_buffered_ioctl_size,
esas2r_buffered_ioctl,
esas2r_buffered_ioctl_addr);
esas2r_buffered_ioctl = NULL;
}
if (a->vda_buffer) {
dma_free_coherent(&a->pcid->dev,
(size_t)VDA_MAX_BUFFER_SIZE,
a->vda_buffer,
(dma_addr_t)a->ppvda_buffer);
a->vda_buffer = NULL;
}
if (a->fs_api_buffer) {
dma_free_coherent(&a->pcid->dev,
(size_t)a->fs_api_buffer_size,
a->fs_api_buffer,
(dma_addr_t)a->ppfs_api_buffer);
a->fs_api_buffer = NULL;
}
kfree(a->local_atto_ioctl);
a->local_atto_ioctl = NULL;
spin_lock_irqsave(&a->fw_event_lock, flags);
wq = a->fw_event_q;
a->fw_event_q = NULL;
spin_unlock_irqrestore(&a->fw_event_lock, flags);
if (wq)
destroy_workqueue(wq);
if (a->uncached) {
dma_free_coherent(&a->pcid->dev,
(size_t)a->uncached_size,
a->uncached,
(dma_addr_t)a->uncached_phys);
a->uncached = NULL;
esas2r_debug("uncached area freed");
}
esas2r_log_dev(ESAS2R_LOG_INFO,
&(a->pcid->dev),
"pci_disable_device() called. msix_enabled: %d "
"msi_enabled: %d irq: %d pin: %d",
a->pcid->msix_enabled,
a->pcid->msi_enabled,
a->pcid->irq,
a->pcid->pin);
esas2r_log_dev(ESAS2R_LOG_INFO,
&(a->pcid->dev),
"before pci_disable_device() enable_cnt: %d",
a->pcid->enable_cnt.counter);
pci_disable_device(a->pcid);
esas2r_log_dev(ESAS2R_LOG_INFO,
&(a->pcid->dev),
"after pci_disable_device() enable_cnt: %d",
a->pcid->enable_cnt.counter);
esas2r_log_dev(ESAS2R_LOG_INFO,
&(a->pcid->dev),
"pci_set_drv_data(%p, NULL) called",
a->pcid);
pci_set_drvdata(a->pcid, NULL);
esas2r_adapters[i] = NULL;
if (test_bit(AF2_INIT_DONE, &a->flags2)) {
clear_bit(AF2_INIT_DONE, &a->flags2);
set_bit(AF_DEGRADED_MODE, &a->flags);
esas2r_log_dev(ESAS2R_LOG_INFO,
&(a->host->shost_gendev),
"scsi_remove_host() called");
scsi_remove_host(a->host);
esas2r_log_dev(ESAS2R_LOG_INFO,
&(a->host->shost_gendev),
"scsi_host_put() called");
scsi_host_put(a->host);
}
}
}
static int __maybe_unused esas2r_suspend(struct device *dev)
{
struct Scsi_Host *host = dev_get_drvdata(dev);
struct esas2r_adapter *a = (struct esas2r_adapter *)host->hostdata;
esas2r_log_dev(ESAS2R_LOG_INFO, dev, "suspending adapter()");
if (!a)
return -ENODEV;
esas2r_adapter_power_down(a, 1);
esas2r_log_dev(ESAS2R_LOG_INFO, dev, "esas2r_suspend(): 0");
return 0;
}
static int __maybe_unused esas2r_resume(struct device *dev)
{
struct Scsi_Host *host = dev_get_drvdata(dev);
struct esas2r_adapter *a = (struct esas2r_adapter *)host->hostdata;
int rez = 0;
esas2r_log_dev(ESAS2R_LOG_INFO, dev, "resuming adapter()");
if (!a) {
rez = -ENODEV;
goto error_exit;
}
if (esas2r_map_regions(a) != 0) {
esas2r_log(ESAS2R_LOG_CRIT, "could not re-map PCI regions!");
rez = -ENOMEM;
goto error_exit;
}
/* Set up interupt mode */
esas2r_setup_interrupts(a, a->intr_mode);
/*
* Disable chip interrupts to prevent spurious interrupts until we
* claim the IRQ.
*/
esas2r_disable_chip_interrupts(a);
if (!esas2r_power_up(a, true)) {
esas2r_debug("yikes, esas2r_power_up failed");
rez = -ENOMEM;
goto error_exit;
}
esas2r_claim_interrupts(a);
if (test_bit(AF2_IRQ_CLAIMED, &a->flags2)) {
/*
* Now that system interrupt(s) are claimed, we can enable
* chip interrupts.
*/
esas2r_enable_chip_interrupts(a);
esas2r_kickoff_timer(a);
} else {
esas2r_debug("yikes, unable to claim IRQ");
esas2r_log(ESAS2R_LOG_CRIT, "could not re-claim IRQ!");
rez = -ENOMEM;
goto error_exit;
}
error_exit:
esas2r_log_dev(ESAS2R_LOG_CRIT, dev, "esas2r_resume(): %d",
rez);
return rez;
}
SIMPLE_DEV_PM_OPS(esas2r_pm_ops, esas2r_suspend, esas2r_resume);
bool esas2r_set_degraded_mode(struct esas2r_adapter *a, char *error_str)
{
set_bit(AF_DEGRADED_MODE, &a->flags);
esas2r_log(ESAS2R_LOG_CRIT,
"setting adapter to degraded mode: %s\n", error_str);
return false;
}
u32 esas2r_get_uncached_size(struct esas2r_adapter *a)
{
return sizeof(struct esas2r_sas_nvram)
+ ALIGN(ESAS2R_DISC_BUF_LEN, 8)
+ ALIGN(sizeof(u32), 8) /* outbound list copy pointer */
+ 8
+ (num_sg_lists * (u16)sgl_page_size)
+ ALIGN((num_requests + num_ae_requests + 1 +
ESAS2R_LIST_EXTRA) *
sizeof(struct esas2r_inbound_list_source_entry),
8)
+ ALIGN((num_requests + num_ae_requests + 1 +
ESAS2R_LIST_EXTRA) *
sizeof(struct atto_vda_ob_rsp), 8)
+ 256; /* VDA request and buffer align */
}
static void esas2r_init_pci_cfg_space(struct esas2r_adapter *a)
{
if (pci_is_pcie(a->pcid)) {
u16 devcontrol;
pcie_capability_read_word(a->pcid, PCI_EXP_DEVCTL, &devcontrol);
if ((devcontrol & PCI_EXP_DEVCTL_READRQ) >
PCI_EXP_DEVCTL_READRQ_512B) {
esas2r_log(ESAS2R_LOG_INFO,
"max read request size > 512B");
devcontrol &= ~PCI_EXP_DEVCTL_READRQ;
devcontrol |= PCI_EXP_DEVCTL_READRQ_512B;
pcie_capability_write_word(a->pcid, PCI_EXP_DEVCTL,
devcontrol);
}
}
}
/*
* Determine the organization of the uncached data area and
* finish initializing the adapter structure
*/
bool esas2r_init_adapter_struct(struct esas2r_adapter *a,
void **uncached_area)
{
u32 i;
u8 *high;
struct esas2r_inbound_list_source_entry *element;
struct esas2r_request *rq;
struct esas2r_mem_desc *sgl;
spin_lock_init(&a->sg_list_lock);
spin_lock_init(&a->mem_lock);
spin_lock_init(&a->queue_lock);
a->targetdb_end = &a->targetdb[ESAS2R_MAX_TARGETS];
if (!alloc_vda_req(a, &a->general_req)) {
esas2r_hdebug(
"failed to allocate a VDA request for the general req!");
return false;
}
/* allocate requests for asynchronous events */
a->first_ae_req =
kcalloc(num_ae_requests, sizeof(struct esas2r_request),
GFP_KERNEL);
if (a->first_ae_req == NULL) {
esas2r_log(ESAS2R_LOG_CRIT,
"failed to allocate memory for asynchronous events");
return false;
}
/* allocate the S/G list memory descriptors */
a->sg_list_mds = kcalloc(num_sg_lists, sizeof(struct esas2r_mem_desc),
GFP_KERNEL);
if (a->sg_list_mds == NULL) {
esas2r_log(ESAS2R_LOG_CRIT,
"failed to allocate memory for s/g list descriptors");
return false;
}
/* allocate the request table */
a->req_table =
kcalloc(num_requests + num_ae_requests + 1,
sizeof(struct esas2r_request *),
GFP_KERNEL);
if (a->req_table == NULL) {
esas2r_log(ESAS2R_LOG_CRIT,
"failed to allocate memory for the request table");
return false;
}
/* initialize PCI configuration space */
esas2r_init_pci_cfg_space(a);
/*
* the thunder_stream boards all have a serial flash part that has a
* different base address on the AHB bus.
*/
if ((a->pcid->subsystem_vendor == ATTO_VENDOR_ID)
&& (a->pcid->subsystem_device & ATTO_SSDID_TBT))
a->flags2 |= AF2_THUNDERBOLT;
if (test_bit(AF2_THUNDERBOLT, &a->flags2))
a->flags2 |= AF2_SERIAL_FLASH;
if (a->pcid->subsystem_device == ATTO_TLSH_1068)
a->flags2 |= AF2_THUNDERLINK;
/* Uncached Area */
high = (u8 *)*uncached_area;
/* initialize the scatter/gather table pages */
for (i = 0, sgl = a->sg_list_mds; i < num_sg_lists; i++, sgl++) {
sgl->size = sgl_page_size;
list_add_tail(&sgl->next_desc, &a->free_sg_list_head);
if (!esas2r_initmem_alloc(a, sgl, ESAS2R_SGL_ALIGN)) {
/* Allow the driver to load if the minimum count met. */
if (i < NUM_SGL_MIN)
return false;
break;
}
}
/* compute the size of the lists */
a->list_size = num_requests + ESAS2R_LIST_EXTRA;
/* allocate the inbound list */
a->inbound_list_md.size = a->list_size *
sizeof(struct
esas2r_inbound_list_source_entry);
if (!esas2r_initmem_alloc(a, &a->inbound_list_md, ESAS2R_LIST_ALIGN)) {
esas2r_hdebug("failed to allocate IB list");
return false;
}
/* allocate the outbound list */
a->outbound_list_md.size = a->list_size *
sizeof(struct atto_vda_ob_rsp);
if (!esas2r_initmem_alloc(a, &a->outbound_list_md,
ESAS2R_LIST_ALIGN)) {
esas2r_hdebug("failed to allocate IB list");
return false;
}
/* allocate the NVRAM structure */
a->nvram = (struct esas2r_sas_nvram *)high;
high += sizeof(struct esas2r_sas_nvram);
/* allocate the discovery buffer */
a->disc_buffer = high;
high += ESAS2R_DISC_BUF_LEN;
high = PTR_ALIGN(high, 8);
/* allocate the outbound list copy pointer */
a->outbound_copy = (u32 volatile *)high;
high += sizeof(u32);
if (!test_bit(AF_NVR_VALID, &a->flags))
esas2r_nvram_set_defaults(a);
/* update the caller's uncached memory area pointer */
*uncached_area = (void *)high;
/* initialize the allocated memory */
if (test_bit(AF_FIRST_INIT, &a->flags)) {
esas2r_targ_db_initialize(a);
/* prime parts of the inbound list */
element =
(struct esas2r_inbound_list_source_entry *)a->
inbound_list_md.
virt_addr;
for (i = 0; i < a->list_size; i++) {
element->address = 0;
element->reserved = 0;
element->length = cpu_to_le32(HWILSE_INTERFACE_F0
| (sizeof(union
atto_vda_req)
/
sizeof(u32)));
element++;
}
/* init the AE requests */
for (rq = a->first_ae_req, i = 0; i < num_ae_requests; rq++,
i++) {
INIT_LIST_HEAD(&rq->req_list);
if (!alloc_vda_req(a, rq)) {
esas2r_hdebug(
"failed to allocate a VDA request!");
return false;
}
esas2r_rq_init_request(rq, a);
/* override the completion function */
rq->comp_cb = esas2r_ae_complete;
}
}
return true;
}
/* This code will verify that the chip is operational. */
bool esas2r_check_adapter(struct esas2r_adapter *a)
{
u32 starttime;
u32 doorbell;
u64 ppaddr;
u32 dw;
/*
* if the chip reset detected flag is set, we can bypass a bunch of
* stuff.
*/
if (test_bit(AF_CHPRST_DETECTED, &a->flags))
goto skip_chip_reset;
/*
* BEFORE WE DO ANYTHING, disable the chip interrupts! the boot driver
* may have left them enabled or we may be recovering from a fault.
*/
esas2r_write_register_dword(a, MU_INT_MASK_OUT, ESAS2R_INT_DIS_MASK);
esas2r_flush_register_dword(a, MU_INT_MASK_OUT);
/*
* wait for the firmware to become ready by forcing an interrupt and
* waiting for a response.
*/
starttime = jiffies_to_msecs(jiffies);
while (true) {
esas2r_force_interrupt(a);
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell == 0xFFFFFFFF) {
/*
* Give the firmware up to two seconds to enable
* register access after a reset.
*/
if ((jiffies_to_msecs(jiffies) - starttime) > 2000)
return esas2r_set_degraded_mode(a,
"unable to access registers");
} else if (doorbell & DRBL_FORCE_INT) {
u32 ver = (doorbell & DRBL_FW_VER_MSK);
/*
* This driver supports version 0 and version 1 of
* the API
*/
esas2r_write_register_dword(a, MU_DOORBELL_OUT,
doorbell);
if (ver == DRBL_FW_VER_0) {
set_bit(AF_LEGACY_SGE_MODE, &a->flags);
a->max_vdareq_size = 128;
a->build_sgl = esas2r_build_sg_list_sge;
} else if (ver == DRBL_FW_VER_1) {
clear_bit(AF_LEGACY_SGE_MODE, &a->flags);
a->max_vdareq_size = 1024;
a->build_sgl = esas2r_build_sg_list_prd;
} else {
return esas2r_set_degraded_mode(a,
"unknown firmware version");
}
break;
}
schedule_timeout_interruptible(msecs_to_jiffies(100));
if ((jiffies_to_msecs(jiffies) - starttime) > 180000) {
esas2r_hdebug("FW ready TMO");
esas2r_bugon();
return esas2r_set_degraded_mode(a,
"firmware start has timed out");
}
}
/* purge any asynchronous events since we will repost them later */
esas2r_write_register_dword(a, MU_DOORBELL_IN, DRBL_MSG_IFC_DOWN);
starttime = jiffies_to_msecs(jiffies);
while (true) {
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell & DRBL_MSG_IFC_DOWN) {
esas2r_write_register_dword(a, MU_DOORBELL_OUT,
doorbell);
break;
}
schedule_timeout_interruptible(msecs_to_jiffies(50));
if ((jiffies_to_msecs(jiffies) - starttime) > 3000) {
esas2r_hdebug("timeout waiting for interface down");
break;
}
}
skip_chip_reset:
/*
* first things first, before we go changing any of these registers
* disable the communication lists.
*/
dw = esas2r_read_register_dword(a, MU_IN_LIST_CONFIG);
dw &= ~MU_ILC_ENABLE;
esas2r_write_register_dword(a, MU_IN_LIST_CONFIG, dw);
dw = esas2r_read_register_dword(a, MU_OUT_LIST_CONFIG);
dw &= ~MU_OLC_ENABLE;
esas2r_write_register_dword(a, MU_OUT_LIST_CONFIG, dw);
/* configure the communication list addresses */
ppaddr = a->inbound_list_md.phys_addr;
esas2r_write_register_dword(a, MU_IN_LIST_ADDR_LO,
lower_32_bits(ppaddr));
esas2r_write_register_dword(a, MU_IN_LIST_ADDR_HI,
upper_32_bits(ppaddr));
ppaddr = a->outbound_list_md.phys_addr;
esas2r_write_register_dword(a, MU_OUT_LIST_ADDR_LO,
lower_32_bits(ppaddr));
esas2r_write_register_dword(a, MU_OUT_LIST_ADDR_HI,
upper_32_bits(ppaddr));
ppaddr = a->uncached_phys +
((u8 *)a->outbound_copy - a->uncached);
esas2r_write_register_dword(a, MU_OUT_LIST_COPY_PTR_LO,
lower_32_bits(ppaddr));
esas2r_write_register_dword(a, MU_OUT_LIST_COPY_PTR_HI,
upper_32_bits(ppaddr));
/* reset the read and write pointers */
*a->outbound_copy =
a->last_write =
a->last_read = a->list_size - 1;
set_bit(AF_COMM_LIST_TOGGLE, &a->flags);
esas2r_write_register_dword(a, MU_IN_LIST_WRITE, MU_ILW_TOGGLE |
a->last_write);
esas2r_write_register_dword(a, MU_OUT_LIST_COPY, MU_OLC_TOGGLE |
a->last_write);
esas2r_write_register_dword(a, MU_IN_LIST_READ, MU_ILR_TOGGLE |
a->last_write);
esas2r_write_register_dword(a, MU_OUT_LIST_WRITE,
MU_OLW_TOGGLE | a->last_write);
/* configure the interface select fields */
dw = esas2r_read_register_dword(a, MU_IN_LIST_IFC_CONFIG);
dw &= ~(MU_ILIC_LIST | MU_ILIC_DEST);
esas2r_write_register_dword(a, MU_IN_LIST_IFC_CONFIG,
(dw | MU_ILIC_LIST_F0 | MU_ILIC_DEST_DDR));
dw = esas2r_read_register_dword(a, MU_OUT_LIST_IFC_CONFIG);
dw &= ~(MU_OLIC_LIST | MU_OLIC_SOURCE);
esas2r_write_register_dword(a, MU_OUT_LIST_IFC_CONFIG,
(dw | MU_OLIC_LIST_F0 |
MU_OLIC_SOURCE_DDR));
/* finish configuring the communication lists */
dw = esas2r_read_register_dword(a, MU_IN_LIST_CONFIG);
dw &= ~(MU_ILC_ENTRY_MASK | MU_ILC_NUMBER_MASK);
dw |= MU_ILC_ENTRY_4_DW | MU_ILC_DYNAMIC_SRC
| (a->list_size << MU_ILC_NUMBER_SHIFT);
esas2r_write_register_dword(a, MU_IN_LIST_CONFIG, dw);
dw = esas2r_read_register_dword(a, MU_OUT_LIST_CONFIG);
dw &= ~(MU_OLC_ENTRY_MASK | MU_OLC_NUMBER_MASK);
dw |= MU_OLC_ENTRY_4_DW | (a->list_size << MU_OLC_NUMBER_SHIFT);
esas2r_write_register_dword(a, MU_OUT_LIST_CONFIG, dw);
/*
* notify the firmware that we're done setting up the communication
* list registers. wait here until the firmware is done configuring
* its lists. it will signal that it is done by enabling the lists.
*/
esas2r_write_register_dword(a, MU_DOORBELL_IN, DRBL_MSG_IFC_INIT);
starttime = jiffies_to_msecs(jiffies);
while (true) {
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell & DRBL_MSG_IFC_INIT) {
esas2r_write_register_dword(a, MU_DOORBELL_OUT,
doorbell);
break;
}
schedule_timeout_interruptible(msecs_to_jiffies(100));
if ((jiffies_to_msecs(jiffies) - starttime) > 3000) {
esas2r_hdebug(
"timeout waiting for communication list init");
esas2r_bugon();
return esas2r_set_degraded_mode(a,
"timeout waiting for communication list init");
}
}
/*
* flag whether the firmware supports the power down doorbell. we
* determine this by reading the inbound doorbell enable mask.
*/
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_IN_ENB);
if (doorbell & DRBL_POWER_DOWN)
set_bit(AF2_VDA_POWER_DOWN, &a->flags2);
else
clear_bit(AF2_VDA_POWER_DOWN, &a->flags2);
/*
* enable assertion of outbound queue and doorbell interrupts in the
* main interrupt cause register.
*/
esas2r_write_register_dword(a, MU_OUT_LIST_INT_MASK, MU_OLIS_MASK);
esas2r_write_register_dword(a, MU_DOORBELL_OUT_ENB, DRBL_ENB_MASK);
return true;
}
/* Process the initialization message just completed and format the next one. */
static bool esas2r_format_init_msg(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
u32 msg = a->init_msg;
struct atto_vda_cfg_init *ci;
a->init_msg = 0;
switch (msg) {
case ESAS2R_INIT_MSG_START:
case ESAS2R_INIT_MSG_REINIT:
{
esas2r_hdebug("CFG init");
esas2r_build_cfg_req(a,
rq,
VDA_CFG_INIT,
0,
NULL);
ci = (struct atto_vda_cfg_init *)&rq->vrq->cfg.data.init;
ci->sgl_page_size = cpu_to_le32(sgl_page_size);
/* firmware interface overflows in y2106 */
ci->epoch_time = cpu_to_le32(ktime_get_real_seconds());
rq->flags |= RF_FAILURE_OK;
a->init_msg = ESAS2R_INIT_MSG_INIT;
break;
}
case ESAS2R_INIT_MSG_INIT:
if (rq->req_stat == RS_SUCCESS) {
u32 major;
u32 minor;
u16 fw_release;
a->fw_version = le16_to_cpu(
rq->func_rsp.cfg_rsp.vda_version);
a->fw_build = rq->func_rsp.cfg_rsp.fw_build;
fw_release = le16_to_cpu(
rq->func_rsp.cfg_rsp.fw_release);
major = LOBYTE(fw_release);
minor = HIBYTE(fw_release);
a->fw_version += (major << 16) + (minor << 24);
} else {
esas2r_hdebug("FAILED");
}
/*
* the 2.71 and earlier releases of R6xx firmware did not error
* unsupported config requests correctly.
*/
if ((test_bit(AF2_THUNDERBOLT, &a->flags2))
|| (be32_to_cpu(a->fw_version) > 0x00524702)) {
esas2r_hdebug("CFG get init");
esas2r_build_cfg_req(a,
rq,
VDA_CFG_GET_INIT2,
sizeof(struct atto_vda_cfg_init),
NULL);
rq->vrq->cfg.sg_list_offset = offsetof(
struct atto_vda_cfg_req,
data.sge);
rq->vrq->cfg.data.prde.ctl_len =
cpu_to_le32(sizeof(struct atto_vda_cfg_init));
rq->vrq->cfg.data.prde.address = cpu_to_le64(
rq->vrq_md->phys_addr +
sizeof(union atto_vda_req));
rq->flags |= RF_FAILURE_OK;
a->init_msg = ESAS2R_INIT_MSG_GET_INIT;
break;
}
fallthrough;
case ESAS2R_INIT_MSG_GET_INIT:
if (msg == ESAS2R_INIT_MSG_GET_INIT) {
ci = (struct atto_vda_cfg_init *)rq->data_buf;
if (rq->req_stat == RS_SUCCESS) {
a->num_targets_backend =
le32_to_cpu(ci->num_targets_backend);
a->ioctl_tunnel =
le32_to_cpu(ci->ioctl_tunnel);
} else {
esas2r_hdebug("FAILED");
}
}
fallthrough;
default:
rq->req_stat = RS_SUCCESS;
return false;
}
return true;
}
/*
* Perform initialization messages via the request queue. Messages are
* performed with interrupts disabled.
*/
bool esas2r_init_msgs(struct esas2r_adapter *a)
{
bool success = true;
struct esas2r_request *rq = &a->general_req;
esas2r_rq_init_request(rq, a);
rq->comp_cb = esas2r_dummy_complete;
if (a->init_msg == 0)
a->init_msg = ESAS2R_INIT_MSG_REINIT;
while (a->init_msg) {
if (esas2r_format_init_msg(a, rq)) {
unsigned long flags;
while (true) {
spin_lock_irqsave(&a->queue_lock, flags);
esas2r_start_vda_request(a, rq);
spin_unlock_irqrestore(&a->queue_lock, flags);
esas2r_wait_request(a, rq);
if (rq->req_stat != RS_PENDING)
break;
}
}
if (rq->req_stat == RS_SUCCESS
|| ((rq->flags & RF_FAILURE_OK)
&& rq->req_stat != RS_TIMEOUT))
continue;
esas2r_log(ESAS2R_LOG_CRIT, "init message %x failed (%x, %x)",
a->init_msg, rq->req_stat, rq->flags);
a->init_msg = ESAS2R_INIT_MSG_START;
success = false;
break;
}
esas2r_rq_destroy_request(rq, a);
return success;
}
/* Initialize the adapter chip */
bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll)
{
bool rslt = false;
struct esas2r_request *rq;
u32 i;
if (test_bit(AF_DEGRADED_MODE, &a->flags))
goto exit;
if (!test_bit(AF_NVR_VALID, &a->flags)) {
if (!esas2r_nvram_read_direct(a))
esas2r_log(ESAS2R_LOG_WARN,
"invalid/missing NVRAM parameters");
}
if (!esas2r_init_msgs(a)) {
esas2r_set_degraded_mode(a, "init messages failed");
goto exit;
}
/* The firmware is ready. */
clear_bit(AF_DEGRADED_MODE, &a->flags);
clear_bit(AF_CHPRST_PENDING, &a->flags);
/* Post all the async event requests */
for (i = 0, rq = a->first_ae_req; i < num_ae_requests; i++, rq++)
esas2r_start_ae_request(a, rq);
if (!a->flash_rev[0])
esas2r_read_flash_rev(a);
if (!a->image_type[0])
esas2r_read_image_type(a);
if (a->fw_version == 0)
a->fw_rev[0] = 0;
else
sprintf(a->fw_rev, "%1d.%02d",
(int)LOBYTE(HIWORD(a->fw_version)),
(int)HIBYTE(HIWORD(a->fw_version)));
esas2r_hdebug("firmware revision: %s", a->fw_rev);
if (test_bit(AF_CHPRST_DETECTED, &a->flags)
&& (test_bit(AF_FIRST_INIT, &a->flags))) {
esas2r_enable_chip_interrupts(a);
return true;
}
/* initialize discovery */
esas2r_disc_initialize(a);
/*
* wait for the device wait time to expire here if requested. this is
* usually requested during initial driver load and possibly when
* resuming from a low power state. deferred device waiting will use
* interrupts. chip reset recovery always defers device waiting to
* avoid being in a TASKLET too long.
*/
if (init_poll) {
u32 currtime = a->disc_start_time;
u32 nexttick = 100;
u32 deltatime;
/*
* Block Tasklets from getting scheduled and indicate this is
* polled discovery.
*/
set_bit(AF_TASKLET_SCHEDULED, &a->flags);
set_bit(AF_DISC_POLLED, &a->flags);
/*
* Temporarily bring the disable count to zero to enable
* deferred processing. Note that the count is already zero
* after the first initialization.
*/
if (test_bit(AF_FIRST_INIT, &a->flags))
atomic_dec(&a->disable_cnt);
while (test_bit(AF_DISC_PENDING, &a->flags)) {
schedule_timeout_interruptible(msecs_to_jiffies(100));
/*
* Determine the need for a timer tick based on the
* delta time between this and the last iteration of
* this loop. We don't use the absolute time because
* then we would have to worry about when nexttick
* wraps and currtime hasn't yet.
*/
deltatime = jiffies_to_msecs(jiffies) - currtime;
currtime += deltatime;
/*
* Process any waiting discovery as long as the chip is
* up. If a chip reset happens during initial polling,
* we have to make sure the timer tick processes the
* doorbell indicating the firmware is ready.
*/
if (!test_bit(AF_CHPRST_PENDING, &a->flags))
esas2r_disc_check_for_work(a);
/* Simulate a timer tick. */
if (nexttick <= deltatime) {
/* Time for a timer tick */
nexttick += 100;
esas2r_timer_tick(a);
}
if (nexttick > deltatime)
nexttick -= deltatime;
/* Do any deferred processing */
if (esas2r_is_tasklet_pending(a))
esas2r_do_tasklet_tasks(a);
}
if (test_bit(AF_FIRST_INIT, &a->flags))
atomic_inc(&a->disable_cnt);
clear_bit(AF_DISC_POLLED, &a->flags);
clear_bit(AF_TASKLET_SCHEDULED, &a->flags);
}
esas2r_targ_db_report_changes(a);
/*
* For cases where (a) the initialization messages processing may
* handle an interrupt for a port event and a discovery is waiting, but
* we are not waiting for devices, or (b) the device wait time has been
* exhausted but there is still discovery pending, start any leftover
* discovery in interrupt driven mode.
*/
esas2r_disc_start_waiting(a);
/* Enable chip interrupts */
a->int_mask = ESAS2R_INT_STS_MASK;
esas2r_enable_chip_interrupts(a);
esas2r_enable_heartbeat(a);
rslt = true;
exit:
/*
* Regardless of whether initialization was successful, certain things
* need to get done before we exit.
*/
if (test_bit(AF_CHPRST_DETECTED, &a->flags) &&
test_bit(AF_FIRST_INIT, &a->flags)) {
/*
* Reinitialization was performed during the first
* initialization. Only clear the chip reset flag so the
* original device polling is not cancelled.
*/
if (!rslt)
clear_bit(AF_CHPRST_PENDING, &a->flags);
} else {
/* First initialization or a subsequent re-init is complete. */
if (!rslt) {
clear_bit(AF_CHPRST_PENDING, &a->flags);
clear_bit(AF_DISC_PENDING, &a->flags);
}
/* Enable deferred processing after the first initialization. */
if (test_bit(AF_FIRST_INIT, &a->flags)) {
clear_bit(AF_FIRST_INIT, &a->flags);
if (atomic_dec_return(&a->disable_cnt) == 0)
esas2r_do_deferred_processes(a);
}
}
return rslt;
}
void esas2r_reset_adapter(struct esas2r_adapter *a)
{
set_bit(AF_OS_RESET, &a->flags);
esas2r_local_reset_adapter(a);
esas2r_schedule_tasklet(a);
}
void esas2r_reset_chip(struct esas2r_adapter *a)
{
if (!esas2r_is_adapter_present(a))
return;
/*
* Before we reset the chip, save off the VDA core dump. The VDA core
* dump is located in the upper 512KB of the onchip SRAM. Make sure
* to not overwrite a previous crash that was saved.
*/
if (test_bit(AF2_COREDUMP_AVAIL, &a->flags2) &&
!test_bit(AF2_COREDUMP_SAVED, &a->flags2)) {
esas2r_read_mem_block(a,
a->fw_coredump_buff,
MW_DATA_ADDR_SRAM + 0x80000,
ESAS2R_FWCOREDUMP_SZ);
set_bit(AF2_COREDUMP_SAVED, &a->flags2);
}
clear_bit(AF2_COREDUMP_AVAIL, &a->flags2);
/* Reset the chip */
if (a->pcid->revision == MVR_FREY_B2)
esas2r_write_register_dword(a, MU_CTL_STATUS_IN_B2,
MU_CTL_IN_FULL_RST2);
else
esas2r_write_register_dword(a, MU_CTL_STATUS_IN,
MU_CTL_IN_FULL_RST);
/* Stall a little while to let the reset condition clear */
mdelay(10);
}
static void esas2r_power_down_notify_firmware(struct esas2r_adapter *a)
{
u32 starttime;
u32 doorbell;
esas2r_write_register_dword(a, MU_DOORBELL_IN, DRBL_POWER_DOWN);
starttime = jiffies_to_msecs(jiffies);
while (true) {
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell & DRBL_POWER_DOWN) {
esas2r_write_register_dword(a, MU_DOORBELL_OUT,
doorbell);
break;
}
schedule_timeout_interruptible(msecs_to_jiffies(100));
if ((jiffies_to_msecs(jiffies) - starttime) > 30000) {
esas2r_hdebug("Timeout waiting for power down");
break;
}
}
}
/*
* Perform power management processing including managing device states, adapter
* states, interrupts, and I/O.
*/
void esas2r_power_down(struct esas2r_adapter *a)
{
set_bit(AF_POWER_MGT, &a->flags);
set_bit(AF_POWER_DOWN, &a->flags);
if (!test_bit(AF_DEGRADED_MODE, &a->flags)) {
u32 starttime;
u32 doorbell;
/*
* We are currently running OK and will be reinitializing later.
* increment the disable count to coordinate with
* esas2r_init_adapter. We don't have to do this in degraded
* mode since we never enabled interrupts in the first place.
*/
esas2r_disable_chip_interrupts(a);
esas2r_disable_heartbeat(a);
/* wait for any VDA activity to clear before continuing */
esas2r_write_register_dword(a, MU_DOORBELL_IN,
DRBL_MSG_IFC_DOWN);
starttime = jiffies_to_msecs(jiffies);
while (true) {
doorbell =
esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell & DRBL_MSG_IFC_DOWN) {
esas2r_write_register_dword(a, MU_DOORBELL_OUT,
doorbell);
break;
}
schedule_timeout_interruptible(msecs_to_jiffies(100));
if ((jiffies_to_msecs(jiffies) - starttime) > 3000) {
esas2r_hdebug(
"timeout waiting for interface down");
break;
}
}
/*
* For versions of firmware that support it tell them the driver
* is powering down.
*/
if (test_bit(AF2_VDA_POWER_DOWN, &a->flags2))
esas2r_power_down_notify_firmware(a);
}
/* Suspend I/O processing. */
set_bit(AF_OS_RESET, &a->flags);
set_bit(AF_DISC_PENDING, &a->flags);
set_bit(AF_CHPRST_PENDING, &a->flags);
esas2r_process_adapter_reset(a);
/* Remove devices now that I/O is cleaned up. */
a->prev_dev_cnt = esas2r_targ_db_get_tgt_cnt(a);
esas2r_targ_db_remove_all(a, false);
}
/*
* Perform power management processing including managing device states, adapter
* states, interrupts, and I/O.
*/
bool esas2r_power_up(struct esas2r_adapter *a, bool init_poll)
{
bool ret;
clear_bit(AF_POWER_DOWN, &a->flags);
esas2r_init_pci_cfg_space(a);
set_bit(AF_FIRST_INIT, &a->flags);
atomic_inc(&a->disable_cnt);
/* reinitialize the adapter */
ret = esas2r_check_adapter(a);
if (!esas2r_init_adapter_hw(a, init_poll))
ret = false;
/* send the reset asynchronous event */
esas2r_send_reset_ae(a, true);
/* clear this flag after initialization. */
clear_bit(AF_POWER_MGT, &a->flags);
return ret;
}
bool esas2r_is_adapter_present(struct esas2r_adapter *a)
{
if (test_bit(AF_NOT_PRESENT, &a->flags))
return false;
if (esas2r_read_register_dword(a, MU_DOORBELL_OUT) == 0xFFFFFFFF) {
set_bit(AF_NOT_PRESENT, &a->flags);
return false;
}
return true;
}
const char *esas2r_get_model_name(struct esas2r_adapter *a)
{
switch (a->pcid->subsystem_device) {
case ATTO_ESAS_R680:
return "ATTO ExpressSAS R680";
case ATTO_ESAS_R608:
return "ATTO ExpressSAS R608";
case ATTO_ESAS_R60F:
return "ATTO ExpressSAS R60F";
case ATTO_ESAS_R6F0:
return "ATTO ExpressSAS R6F0";
case ATTO_ESAS_R644:
return "ATTO ExpressSAS R644";
case ATTO_ESAS_R648:
return "ATTO ExpressSAS R648";
case ATTO_TSSC_3808:
return "ATTO ThunderStream SC 3808D";
case ATTO_TSSC_3808E:
return "ATTO ThunderStream SC 3808E";
case ATTO_TLSH_1068:
return "ATTO ThunderLink SH 1068";
}
return "ATTO SAS Controller";
}
const char *esas2r_get_model_name_short(struct esas2r_adapter *a)
{
switch (a->pcid->subsystem_device) {
case ATTO_ESAS_R680:
return "R680";
case ATTO_ESAS_R608:
return "R608";
case ATTO_ESAS_R60F:
return "R60F";
case ATTO_ESAS_R6F0:
return "R6F0";
case ATTO_ESAS_R644:
return "R644";
case ATTO_ESAS_R648:
return "R648";
case ATTO_TSSC_3808:
return "SC 3808D";
case ATTO_TSSC_3808E:
return "SC 3808E";
case ATTO_TLSH_1068:
return "SH 1068";
}
return "unknown";
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_init.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_int.c
* esas2r interrupt handling
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#include "esas2r.h"
/* Local function prototypes */
static void esas2r_doorbell_interrupt(struct esas2r_adapter *a, u32 doorbell);
static void esas2r_get_outbound_responses(struct esas2r_adapter *a);
static void esas2r_process_bus_reset(struct esas2r_adapter *a);
/*
* Poll the adapter for interrupts and service them.
* This function handles both legacy interrupts and MSI.
*/
void esas2r_polled_interrupt(struct esas2r_adapter *a)
{
u32 intstat;
u32 doorbell;
esas2r_disable_chip_interrupts(a);
intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
if (intstat & MU_INTSTAT_POST_OUT) {
/* clear the interrupt */
esas2r_write_register_dword(a, MU_OUT_LIST_INT_STAT,
MU_OLIS_INT);
esas2r_flush_register_dword(a, MU_OUT_LIST_INT_STAT);
esas2r_get_outbound_responses(a);
}
if (intstat & MU_INTSTAT_DRBL) {
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell != 0)
esas2r_doorbell_interrupt(a, doorbell);
}
esas2r_enable_chip_interrupts(a);
if (atomic_read(&a->disable_cnt) == 0)
esas2r_do_deferred_processes(a);
}
/*
* Legacy and MSI interrupt handlers. Note that the legacy interrupt handler
* schedules a TASKLET to process events, whereas the MSI handler just
* processes interrupt events directly.
*/
irqreturn_t esas2r_interrupt(int irq, void *dev_id)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)dev_id;
if (!esas2r_adapter_interrupt_pending(a))
return IRQ_NONE;
set_bit(AF2_INT_PENDING, &a->flags2);
esas2r_schedule_tasklet(a);
return IRQ_HANDLED;
}
void esas2r_adapter_interrupt(struct esas2r_adapter *a)
{
u32 doorbell;
if (likely(a->int_stat & MU_INTSTAT_POST_OUT)) {
/* clear the interrupt */
esas2r_write_register_dword(a, MU_OUT_LIST_INT_STAT,
MU_OLIS_INT);
esas2r_flush_register_dword(a, MU_OUT_LIST_INT_STAT);
esas2r_get_outbound_responses(a);
}
if (unlikely(a->int_stat & MU_INTSTAT_DRBL)) {
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell != 0)
esas2r_doorbell_interrupt(a, doorbell);
}
a->int_mask = ESAS2R_INT_STS_MASK;
esas2r_enable_chip_interrupts(a);
if (likely(atomic_read(&a->disable_cnt) == 0))
esas2r_do_deferred_processes(a);
}
irqreturn_t esas2r_msi_interrupt(int irq, void *dev_id)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)dev_id;
u32 intstat;
u32 doorbell;
intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
if (likely(intstat & MU_INTSTAT_POST_OUT)) {
/* clear the interrupt */
esas2r_write_register_dword(a, MU_OUT_LIST_INT_STAT,
MU_OLIS_INT);
esas2r_flush_register_dword(a, MU_OUT_LIST_INT_STAT);
esas2r_get_outbound_responses(a);
}
if (unlikely(intstat & MU_INTSTAT_DRBL)) {
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell != 0)
esas2r_doorbell_interrupt(a, doorbell);
}
/*
* Work around a chip bug and force a new MSI to be sent if one is
* still pending.
*/
esas2r_disable_chip_interrupts(a);
esas2r_enable_chip_interrupts(a);
if (likely(atomic_read(&a->disable_cnt) == 0))
esas2r_do_deferred_processes(a);
esas2r_do_tasklet_tasks(a);
return 1;
}
static void esas2r_handle_outbound_rsp_err(struct esas2r_adapter *a,
struct esas2r_request *rq,
struct atto_vda_ob_rsp *rsp)
{
/*
* For I/O requests, only copy the response if an error
* occurred and setup a callback to do error processing.
*/
if (unlikely(rq->req_stat != RS_SUCCESS)) {
memcpy(&rq->func_rsp, &rsp->func_rsp, sizeof(rsp->func_rsp));
if (rq->req_stat == RS_ABORTED) {
if (rq->timeout > RQ_MAX_TIMEOUT)
rq->req_stat = RS_TIMEOUT;
} else if (rq->req_stat == RS_SCSI_ERROR) {
u8 scsistatus = rq->func_rsp.scsi_rsp.scsi_stat;
esas2r_trace("scsistatus: %x", scsistatus);
/* Any of these are a good result. */
if (scsistatus == SAM_STAT_GOOD || scsistatus ==
SAM_STAT_CONDITION_MET || scsistatus ==
SAM_STAT_INTERMEDIATE || scsistatus ==
SAM_STAT_INTERMEDIATE_CONDITION_MET) {
rq->req_stat = RS_SUCCESS;
rq->func_rsp.scsi_rsp.scsi_stat =
SAM_STAT_GOOD;
}
}
}
}
static void esas2r_get_outbound_responses(struct esas2r_adapter *a)
{
struct atto_vda_ob_rsp *rsp;
u32 rspput_ptr;
u32 rspget_ptr;
struct esas2r_request *rq;
u32 handle;
unsigned long flags;
LIST_HEAD(comp_list);
esas2r_trace_enter();
spin_lock_irqsave(&a->queue_lock, flags);
/* Get the outbound limit and pointers */
rspput_ptr = le32_to_cpu(*a->outbound_copy) & MU_OLC_WRT_PTR;
rspget_ptr = a->last_read;
esas2r_trace("rspput_ptr: %x, rspget_ptr: %x", rspput_ptr, rspget_ptr);
/* If we don't have anything to process, get out */
if (unlikely(rspget_ptr == rspput_ptr)) {
spin_unlock_irqrestore(&a->queue_lock, flags);
esas2r_trace_exit();
return;
}
/* Make sure the firmware is healthy */
if (unlikely(rspput_ptr >= a->list_size)) {
spin_unlock_irqrestore(&a->queue_lock, flags);
esas2r_bugon();
esas2r_local_reset_adapter(a);
esas2r_trace_exit();
return;
}
do {
rspget_ptr++;
if (rspget_ptr >= a->list_size)
rspget_ptr = 0;
rsp = (struct atto_vda_ob_rsp *)a->outbound_list_md.virt_addr
+ rspget_ptr;
handle = rsp->handle;
/* Verify the handle range */
if (unlikely(LOWORD(handle) == 0
|| LOWORD(handle) > num_requests +
num_ae_requests + 1)) {
esas2r_bugon();
continue;
}
/* Get the request for this handle */
rq = a->req_table[LOWORD(handle)];
if (unlikely(rq == NULL || rq->vrq->scsi.handle != handle)) {
esas2r_bugon();
continue;
}
list_del(&rq->req_list);
/* Get the completion status */
rq->req_stat = rsp->req_stat;
esas2r_trace("handle: %x", handle);
esas2r_trace("rq: %p", rq);
esas2r_trace("req_status: %x", rq->req_stat);
if (likely(rq->vrq->scsi.function == VDA_FUNC_SCSI)) {
esas2r_handle_outbound_rsp_err(a, rq, rsp);
} else {
/*
* Copy the outbound completion struct for non-I/O
* requests.
*/
memcpy(&rq->func_rsp, &rsp->func_rsp,
sizeof(rsp->func_rsp));
}
/* Queue the request for completion. */
list_add_tail(&rq->comp_list, &comp_list);
} while (rspget_ptr != rspput_ptr);
a->last_read = rspget_ptr;
spin_unlock_irqrestore(&a->queue_lock, flags);
esas2r_comp_list_drain(a, &comp_list);
esas2r_trace_exit();
}
/*
* Perform all deferred processes for the adapter. Deferred
* processes can only be done while the current interrupt
* disable_cnt for the adapter is zero.
*/
void esas2r_do_deferred_processes(struct esas2r_adapter *a)
{
int startreqs = 2;
struct esas2r_request *rq;
unsigned long flags;
/*
* startreqs is used to control starting requests
* that are on the deferred queue
* = 0 - do not start any requests
* = 1 - can start discovery requests
* = 2 - can start any request
*/
if (test_bit(AF_CHPRST_PENDING, &a->flags) ||
test_bit(AF_FLASHING, &a->flags))
startreqs = 0;
else if (test_bit(AF_DISC_PENDING, &a->flags))
startreqs = 1;
atomic_inc(&a->disable_cnt);
/* Clear off the completed list to be processed later. */
if (esas2r_is_tasklet_pending(a)) {
esas2r_schedule_tasklet(a);
startreqs = 0;
}
/*
* If we can start requests then traverse the defer queue
* looking for requests to start or complete
*/
if (startreqs && !list_empty(&a->defer_list)) {
LIST_HEAD(comp_list);
struct list_head *element, *next;
spin_lock_irqsave(&a->queue_lock, flags);
list_for_each_safe(element, next, &a->defer_list) {
rq = list_entry(element, struct esas2r_request,
req_list);
if (rq->req_stat != RS_PENDING) {
list_del(element);
list_add_tail(&rq->comp_list, &comp_list);
}
/*
* Process discovery and OS requests separately. We
* can't hold up discovery requests when discovery is
* pending. In general, there may be different sets of
* conditions for starting different types of requests.
*/
else if (rq->req_type == RT_DISC_REQ) {
list_del(element);
esas2r_disc_local_start_request(a, rq);
} else if (startreqs == 2) {
list_del(element);
esas2r_local_start_request(a, rq);
/*
* Flashing could have been set by last local
* start
*/
if (test_bit(AF_FLASHING, &a->flags))
break;
}
}
spin_unlock_irqrestore(&a->queue_lock, flags);
esas2r_comp_list_drain(a, &comp_list);
}
atomic_dec(&a->disable_cnt);
}
/*
* Process an adapter reset (or one that is about to happen)
* by making sure all outstanding requests are completed that
* haven't been already.
*/
void esas2r_process_adapter_reset(struct esas2r_adapter *a)
{
struct esas2r_request *rq = &a->general_req;
unsigned long flags;
struct esas2r_disc_context *dc;
LIST_HEAD(comp_list);
struct list_head *element;
esas2r_trace_enter();
spin_lock_irqsave(&a->queue_lock, flags);
/* abort the active discovery, if any. */
if (rq->interrupt_cx) {
dc = (struct esas2r_disc_context *)rq->interrupt_cx;
dc->disc_evt = 0;
clear_bit(AF_DISC_IN_PROG, &a->flags);
}
/*
* just clear the interrupt callback for now. it will be dequeued if
* and when we find it on the active queue and we don't want the
* callback called. also set the dummy completion callback in case we
* were doing an I/O request.
*/
rq->interrupt_cx = NULL;
rq->interrupt_cb = NULL;
rq->comp_cb = esas2r_dummy_complete;
/* Reset the read and write pointers */
*a->outbound_copy =
a->last_write =
a->last_read = a->list_size - 1;
set_bit(AF_COMM_LIST_TOGGLE, &a->flags);
/* Kill all the requests on the active list */
list_for_each(element, &a->defer_list) {
rq = list_entry(element, struct esas2r_request, req_list);
if (rq->req_stat == RS_STARTED)
if (esas2r_ioreq_aborted(a, rq, RS_ABORTED))
list_add_tail(&rq->comp_list, &comp_list);
}
spin_unlock_irqrestore(&a->queue_lock, flags);
esas2r_comp_list_drain(a, &comp_list);
esas2r_process_bus_reset(a);
esas2r_trace_exit();
}
static void esas2r_process_bus_reset(struct esas2r_adapter *a)
{
struct esas2r_request *rq;
struct list_head *element;
unsigned long flags;
LIST_HEAD(comp_list);
esas2r_trace_enter();
esas2r_hdebug("reset detected");
spin_lock_irqsave(&a->queue_lock, flags);
/* kill all the requests on the deferred queue */
list_for_each(element, &a->defer_list) {
rq = list_entry(element, struct esas2r_request, req_list);
if (esas2r_ioreq_aborted(a, rq, RS_ABORTED))
list_add_tail(&rq->comp_list, &comp_list);
}
spin_unlock_irqrestore(&a->queue_lock, flags);
esas2r_comp_list_drain(a, &comp_list);
if (atomic_read(&a->disable_cnt) == 0)
esas2r_do_deferred_processes(a);
clear_bit(AF_OS_RESET, &a->flags);
esas2r_trace_exit();
}
static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
{
clear_bit(AF_CHPRST_NEEDED, &a->flags);
clear_bit(AF_BUSRST_NEEDED, &a->flags);
clear_bit(AF_BUSRST_DETECTED, &a->flags);
clear_bit(AF_BUSRST_PENDING, &a->flags);
/*
* Make sure we don't get attempt more than 3 resets
* when the uptime between resets does not exceed one
* minute. This will stop any situation where there is
* really something wrong with the hardware. The way
* this works is that we start with uptime ticks at 0.
* Each time we do a reset, we add 20 seconds worth to
* the count. Each time a timer tick occurs, as long
* as a chip reset is not pending, we decrement the
* tick count. If the uptime ticks ever gets to 60
* seconds worth, we disable the adapter from that
* point forward. Three strikes, you're out.
*/
if (!esas2r_is_adapter_present(a) || (a->chip_uptime >=
ESAS2R_CHP_UPTIME_MAX)) {
esas2r_hdebug("*** adapter disabled ***");
/*
* Ok, some kind of hard failure. Make sure we
* exit this loop with chip interrupts
* permanently disabled so we don't lock up the
* entire system. Also flag degraded mode to
* prevent the heartbeat from trying to recover.
*/
set_bit(AF_DEGRADED_MODE, &a->flags);
set_bit(AF_DISABLED, &a->flags);
clear_bit(AF_CHPRST_PENDING, &a->flags);
clear_bit(AF_DISC_PENDING, &a->flags);
esas2r_disable_chip_interrupts(a);
a->int_mask = 0;
esas2r_process_adapter_reset(a);
esas2r_log(ESAS2R_LOG_CRIT,
"Adapter disabled because of hardware failure");
} else {
bool alrdyrst = test_and_set_bit(AF_CHPRST_STARTED, &a->flags);
if (!alrdyrst)
/*
* Only disable interrupts if this is
* the first reset attempt.
*/
esas2r_disable_chip_interrupts(a);
if ((test_bit(AF_POWER_MGT, &a->flags)) &&
!test_bit(AF_FIRST_INIT, &a->flags) && !alrdyrst) {
/*
* Don't reset the chip on the first
* deferred power up attempt.
*/
} else {
esas2r_hdebug("*** resetting chip ***");
esas2r_reset_chip(a);
}
/* Kick off the reinitialization */
a->chip_uptime += ESAS2R_CHP_UPTIME_CNT;
a->chip_init_time = jiffies_to_msecs(jiffies);
if (!test_bit(AF_POWER_MGT, &a->flags)) {
esas2r_process_adapter_reset(a);
if (!alrdyrst) {
/* Remove devices now that I/O is cleaned up. */
a->prev_dev_cnt =
esas2r_targ_db_get_tgt_cnt(a);
esas2r_targ_db_remove_all(a, false);
}
}
a->int_mask = 0;
}
}
static void esas2r_handle_chip_rst_during_tasklet(struct esas2r_adapter *a)
{
while (test_bit(AF_CHPRST_DETECTED, &a->flags)) {
/*
* Balance the enable in esas2r_initadapter_hw.
* Esas2r_power_down already took care of it for power
* management.
*/
if (!test_bit(AF_DEGRADED_MODE, &a->flags) &&
!test_bit(AF_POWER_MGT, &a->flags))
esas2r_disable_chip_interrupts(a);
/* Reinitialize the chip. */
esas2r_check_adapter(a);
esas2r_init_adapter_hw(a, 0);
if (test_bit(AF_CHPRST_NEEDED, &a->flags))
break;
if (test_bit(AF_POWER_MGT, &a->flags)) {
/* Recovery from power management. */
if (test_bit(AF_FIRST_INIT, &a->flags)) {
/* Chip reset during normal power up */
esas2r_log(ESAS2R_LOG_CRIT,
"The firmware was reset during a normal power-up sequence");
} else {
/* Deferred power up complete. */
clear_bit(AF_POWER_MGT, &a->flags);
esas2r_send_reset_ae(a, true);
}
} else {
/* Recovery from online chip reset. */
if (test_bit(AF_FIRST_INIT, &a->flags)) {
/* Chip reset during driver load */
} else {
/* Chip reset after driver load */
esas2r_send_reset_ae(a, false);
}
esas2r_log(ESAS2R_LOG_CRIT,
"Recovering from a chip reset while the chip was online");
}
clear_bit(AF_CHPRST_STARTED, &a->flags);
esas2r_enable_chip_interrupts(a);
/*
* Clear this flag last! this indicates that the chip has been
* reset already during initialization.
*/
clear_bit(AF_CHPRST_DETECTED, &a->flags);
}
}
/* Perform deferred tasks when chip interrupts are disabled */
void esas2r_do_tasklet_tasks(struct esas2r_adapter *a)
{
if (test_bit(AF_CHPRST_NEEDED, &a->flags) ||
test_bit(AF_CHPRST_DETECTED, &a->flags)) {
if (test_bit(AF_CHPRST_NEEDED, &a->flags))
esas2r_chip_rst_needed_during_tasklet(a);
esas2r_handle_chip_rst_during_tasklet(a);
}
if (test_bit(AF_BUSRST_NEEDED, &a->flags)) {
esas2r_hdebug("hard resetting bus");
clear_bit(AF_BUSRST_NEEDED, &a->flags);
if (test_bit(AF_FLASHING, &a->flags))
set_bit(AF_BUSRST_DETECTED, &a->flags);
else
esas2r_write_register_dword(a, MU_DOORBELL_IN,
DRBL_RESET_BUS);
}
if (test_bit(AF_BUSRST_DETECTED, &a->flags)) {
esas2r_process_bus_reset(a);
esas2r_log_dev(ESAS2R_LOG_WARN,
&(a->host->shost_gendev),
"scsi_report_bus_reset() called");
scsi_report_bus_reset(a->host, 0);
clear_bit(AF_BUSRST_DETECTED, &a->flags);
clear_bit(AF_BUSRST_PENDING, &a->flags);
esas2r_log(ESAS2R_LOG_WARN, "Bus reset complete");
}
if (test_bit(AF_PORT_CHANGE, &a->flags)) {
clear_bit(AF_PORT_CHANGE, &a->flags);
esas2r_targ_db_report_changes(a);
}
if (atomic_read(&a->disable_cnt) == 0)
esas2r_do_deferred_processes(a);
}
static void esas2r_doorbell_interrupt(struct esas2r_adapter *a, u32 doorbell)
{
if (!(doorbell & DRBL_FORCE_INT)) {
esas2r_trace_enter();
esas2r_trace("doorbell: %x", doorbell);
}
/* First clear the doorbell bits */
esas2r_write_register_dword(a, MU_DOORBELL_OUT, doorbell);
if (doorbell & DRBL_RESET_BUS)
set_bit(AF_BUSRST_DETECTED, &a->flags);
if (doorbell & DRBL_FORCE_INT)
clear_bit(AF_HEARTBEAT, &a->flags);
if (doorbell & DRBL_PANIC_REASON_MASK) {
esas2r_hdebug("*** Firmware Panic ***");
esas2r_log(ESAS2R_LOG_CRIT, "The firmware has panicked");
}
if (doorbell & DRBL_FW_RESET) {
set_bit(AF2_COREDUMP_AVAIL, &a->flags2);
esas2r_local_reset_adapter(a);
}
if (!(doorbell & DRBL_FORCE_INT)) {
esas2r_trace_exit();
}
}
void esas2r_force_interrupt(struct esas2r_adapter *a)
{
esas2r_write_register_dword(a, MU_DOORBELL_IN, DRBL_FORCE_INT |
DRBL_DRV_VER);
}
static void esas2r_lun_event(struct esas2r_adapter *a, union atto_vda_ae *ae,
u16 target, u32 length)
{
struct esas2r_target *t = a->targetdb + target;
u32 cplen = length;
unsigned long flags;
if (cplen > sizeof(t->lu_event))
cplen = sizeof(t->lu_event);
esas2r_trace("ae->lu.dwevent: %x", ae->lu.dwevent);
esas2r_trace("ae->lu.bystate: %x", ae->lu.bystate);
spin_lock_irqsave(&a->mem_lock, flags);
t->new_target_state = TS_INVALID;
if (ae->lu.dwevent & VDAAE_LU_LOST) {
t->new_target_state = TS_NOT_PRESENT;
} else {
switch (ae->lu.bystate) {
case VDAAE_LU_NOT_PRESENT:
case VDAAE_LU_OFFLINE:
case VDAAE_LU_DELETED:
case VDAAE_LU_FACTORY_DISABLED:
t->new_target_state = TS_NOT_PRESENT;
break;
case VDAAE_LU_ONLINE:
case VDAAE_LU_DEGRADED:
t->new_target_state = TS_PRESENT;
break;
}
}
if (t->new_target_state != TS_INVALID) {
memcpy(&t->lu_event, &ae->lu, cplen);
esas2r_disc_queue_event(a, DCDE_DEV_CHANGE);
}
spin_unlock_irqrestore(&a->mem_lock, flags);
}
void esas2r_ae_complete(struct esas2r_adapter *a, struct esas2r_request *rq)
{
union atto_vda_ae *ae =
(union atto_vda_ae *)rq->vda_rsp_data->ae_data.event_data;
u32 length = le32_to_cpu(rq->func_rsp.ae_rsp.length);
union atto_vda_ae *last =
(union atto_vda_ae *)(rq->vda_rsp_data->ae_data.event_data
+ length);
esas2r_trace_enter();
esas2r_trace("length: %d", length);
if (length > sizeof(struct atto_vda_ae_data)
|| (length & 3) != 0
|| length == 0) {
esas2r_log(ESAS2R_LOG_WARN,
"The AE request response length (%p) is too long: %d",
rq, length);
esas2r_hdebug("aereq->length (0x%x) too long", length);
esas2r_bugon();
last = ae;
}
while (ae < last) {
u16 target;
esas2r_trace("ae: %p", ae);
esas2r_trace("ae->hdr: %p", &(ae->hdr));
length = ae->hdr.bylength;
if (length > (u32)((u8 *)last - (u8 *)ae)
|| (length & 3) != 0
|| length == 0) {
esas2r_log(ESAS2R_LOG_CRIT,
"the async event length is invalid (%p): %d",
ae, length);
esas2r_hdebug("ae->hdr.length (0x%x) invalid", length);
esas2r_bugon();
break;
}
esas2r_nuxi_ae_data(ae);
esas2r_queue_fw_event(a, fw_event_vda_ae, ae,
sizeof(union atto_vda_ae));
switch (ae->hdr.bytype) {
case VDAAE_HDR_TYPE_RAID:
if (ae->raid.dwflags & (VDAAE_GROUP_STATE
| VDAAE_RBLD_STATE
| VDAAE_MEMBER_CHG
| VDAAE_PART_CHG)) {
esas2r_log(ESAS2R_LOG_INFO,
"RAID event received - name:%s rebuild_state:%d group_state:%d",
ae->raid.acname,
ae->raid.byrebuild_state,
ae->raid.bygroup_state);
}
break;
case VDAAE_HDR_TYPE_LU:
esas2r_log(ESAS2R_LOG_INFO,
"LUN event received: event:%d target_id:%d LUN:%d state:%d",
ae->lu.dwevent,
ae->lu.id.tgtlun.wtarget_id,
ae->lu.id.tgtlun.bylun,
ae->lu.bystate);
target = ae->lu.id.tgtlun.wtarget_id;
if (target < ESAS2R_MAX_TARGETS)
esas2r_lun_event(a, ae, target, length);
break;
case VDAAE_HDR_TYPE_DISK:
esas2r_log(ESAS2R_LOG_INFO, "Disk event received");
break;
default:
/* Silently ignore the rest and let the apps deal with
* them.
*/
break;
}
ae = (union atto_vda_ae *)((u8 *)ae + length);
}
/* Now requeue it. */
esas2r_start_ae_request(a, rq);
esas2r_trace_exit();
}
/* Send an asynchronous event for a chip reset or power management. */
void esas2r_send_reset_ae(struct esas2r_adapter *a, bool pwr_mgt)
{
struct atto_vda_ae_hdr ae;
if (pwr_mgt)
ae.bytype = VDAAE_HDR_TYPE_PWRMGT;
else
ae.bytype = VDAAE_HDR_TYPE_RESET;
ae.byversion = VDAAE_HDR_VER_0;
ae.byflags = 0;
ae.bylength = (u8)sizeof(struct atto_vda_ae_hdr);
if (pwr_mgt) {
esas2r_hdebug("*** sending power management AE ***");
} else {
esas2r_hdebug("*** sending reset AE ***");
}
esas2r_queue_fw_event(a, fw_event_vda_ae, &ae,
sizeof(union atto_vda_ae));
}
void esas2r_dummy_complete(struct esas2r_adapter *a, struct esas2r_request *rq)
{}
static void esas2r_check_req_rsp_sense(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
u8 snslen, snslen2;
snslen = snslen2 = rq->func_rsp.scsi_rsp.sense_len;
if (snslen > rq->sense_len)
snslen = rq->sense_len;
if (snslen) {
if (rq->sense_buf)
memcpy(rq->sense_buf, rq->data_buf, snslen);
else
rq->sense_buf = (u8 *)rq->data_buf;
/* See about possible sense data */
if (snslen2 > 0x0c) {
u8 *s = (u8 *)rq->data_buf;
esas2r_trace_enter();
/* Report LUNS data has changed */
if (s[0x0c] == 0x3f && s[0x0d] == 0x0E) {
esas2r_trace("rq->target_id: %d",
rq->target_id);
esas2r_target_state_changed(a, rq->target_id,
TS_LUN_CHANGE);
}
esas2r_trace("add_sense_key=%x", s[0x0c]);
esas2r_trace("add_sense_qual=%x", s[0x0d]);
esas2r_trace_exit();
}
}
rq->sense_len = snslen;
}
void esas2r_complete_request(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
if (rq->vrq->scsi.function == VDA_FUNC_FLASH
&& rq->vrq->flash.sub_func == VDA_FLASH_COMMIT)
clear_bit(AF_FLASHING, &a->flags);
/* See if we setup a callback to do special processing */
if (rq->interrupt_cb) {
(*rq->interrupt_cb)(a, rq);
if (rq->req_stat == RS_PENDING) {
esas2r_start_request(a, rq);
return;
}
}
if (likely(rq->vrq->scsi.function == VDA_FUNC_SCSI)
&& unlikely(rq->req_stat != RS_SUCCESS)) {
esas2r_check_req_rsp_sense(a, rq);
esas2r_log_request_failure(a, rq);
}
(*rq->comp_cb)(a, rq);
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_int.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_io.c
* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])mpt3sas/mpt3sas_trigger_diag.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "esas2r.h"
void esas2r_start_request(struct esas2r_adapter *a, struct esas2r_request *rq)
{
struct esas2r_target *t = NULL;
struct esas2r_request *startrq = rq;
unsigned long flags;
if (unlikely(test_bit(AF_DEGRADED_MODE, &a->flags) ||
test_bit(AF_POWER_DOWN, &a->flags))) {
if (rq->vrq->scsi.function == VDA_FUNC_SCSI)
rq->req_stat = RS_SEL2;
else
rq->req_stat = RS_DEGRADED;
} else if (likely(rq->vrq->scsi.function == VDA_FUNC_SCSI)) {
t = a->targetdb + rq->target_id;
if (unlikely(t >= a->targetdb_end
|| !(t->flags & TF_USED))) {
rq->req_stat = RS_SEL;
} else {
/* copy in the target ID. */
rq->vrq->scsi.target_id = cpu_to_le16(t->virt_targ_id);
/*
* Test if we want to report RS_SEL for missing target.
* Note that if AF_DISC_PENDING is set than this will
* go on the defer queue.
*/
if (unlikely(t->target_state != TS_PRESENT &&
!test_bit(AF_DISC_PENDING, &a->flags)))
rq->req_stat = RS_SEL;
}
}
if (unlikely(rq->req_stat != RS_PENDING)) {
esas2r_complete_request(a, rq);
return;
}
esas2r_trace("rq=%p", rq);
esas2r_trace("rq->vrq->scsi.handle=%x", rq->vrq->scsi.handle);
if (rq->vrq->scsi.function == VDA_FUNC_SCSI) {
esas2r_trace("rq->target_id=%d", rq->target_id);
esas2r_trace("rq->vrq->scsi.flags=%x", rq->vrq->scsi.flags);
}
spin_lock_irqsave(&a->queue_lock, flags);
if (likely(list_empty(&a->defer_list) &&
!test_bit(AF_CHPRST_PENDING, &a->flags) &&
!test_bit(AF_FLASHING, &a->flags) &&
!test_bit(AF_DISC_PENDING, &a->flags)))
esas2r_local_start_request(a, startrq);
else
list_add_tail(&startrq->req_list, &a->defer_list);
spin_unlock_irqrestore(&a->queue_lock, flags);
}
/*
* Starts the specified request. all requests have RS_PENDING set when this
* routine is called. The caller is usually esas2r_start_request, but
* esas2r_do_deferred_processes will start request that are deferred.
*
* The caller must ensure that requests can be started.
*
* esas2r_start_request will defer a request if there are already requests
* waiting or there is a chip reset pending. once the reset condition clears,
* esas2r_do_deferred_processes will call this function to start the request.
*
* When a request is started, it is placed on the active list and queued to
* the controller.
*/
void esas2r_local_start_request(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
esas2r_trace_enter();
esas2r_trace("rq=%p", rq);
esas2r_trace("rq->vrq:%p", rq->vrq);
esas2r_trace("rq->vrq_md->phys_addr:%x", rq->vrq_md->phys_addr);
if (unlikely(rq->vrq->scsi.function == VDA_FUNC_FLASH
&& rq->vrq->flash.sub_func == VDA_FLASH_COMMIT))
set_bit(AF_FLASHING, &a->flags);
list_add_tail(&rq->req_list, &a->active_list);
esas2r_start_vda_request(a, rq);
esas2r_trace_exit();
return;
}
void esas2r_start_vda_request(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_inbound_list_source_entry *element;
u32 dw;
rq->req_stat = RS_STARTED;
/*
* Calculate the inbound list entry location and the current state of
* toggle bit.
*/
a->last_write++;
if (a->last_write >= a->list_size) {
a->last_write = 0;
/* update the toggle bit */
if (test_bit(AF_COMM_LIST_TOGGLE, &a->flags))
clear_bit(AF_COMM_LIST_TOGGLE, &a->flags);
else
set_bit(AF_COMM_LIST_TOGGLE, &a->flags);
}
element =
(struct esas2r_inbound_list_source_entry *)a->inbound_list_md.
virt_addr
+ a->last_write;
/* Set the VDA request size if it was never modified */
if (rq->vda_req_sz == RQ_SIZE_DEFAULT)
rq->vda_req_sz = (u16)(a->max_vdareq_size / sizeof(u32));
element->address = cpu_to_le64(rq->vrq_md->phys_addr);
element->length = cpu_to_le32(rq->vda_req_sz);
/* Update the write pointer */
dw = a->last_write;
if (test_bit(AF_COMM_LIST_TOGGLE, &a->flags))
dw |= MU_ILW_TOGGLE;
esas2r_trace("rq->vrq->scsi.handle:%x", rq->vrq->scsi.handle);
esas2r_trace("dw:%x", dw);
esas2r_trace("rq->vda_req_sz:%x", rq->vda_req_sz);
esas2r_write_register_dword(a, MU_IN_LIST_WRITE, dw);
}
/*
* Build the scatter/gather list for an I/O request according to the
* specifications placed in the s/g context. The caller must initialize
* context prior to the initial call by calling esas2r_sgc_init().
*/
bool esas2r_build_sg_list_sge(struct esas2r_adapter *a,
struct esas2r_sg_context *sgc)
{
struct esas2r_request *rq = sgc->first_req;
union atto_vda_req *vrq = rq->vrq;
while (sgc->length) {
u32 rem = 0;
u64 addr;
u32 len;
len = (*sgc->get_phys_addr)(sgc, &addr);
if (unlikely(len == 0))
return false;
/* if current length is more than what's left, stop there */
if (unlikely(len > sgc->length))
len = sgc->length;
another_entry:
/* limit to a round number less than the maximum length */
if (len > SGE_LEN_MAX) {
/*
* Save the remainder of the split. Whenever we limit
* an entry we come back around to build entries out
* of the leftover. We do this to prevent multiple
* calls to the get_phys_addr() function for an SGE
* that is too large.
*/
rem = len - SGE_LEN_MAX;
len = SGE_LEN_MAX;
}
/* See if we need to allocate a new SGL */
if (unlikely(sgc->sge.a64.curr > sgc->sge.a64.limit)) {
u8 sgelen;
struct esas2r_mem_desc *sgl;
/*
* If no SGls are available, return failure. The
* caller can call us later with the current context
* to pick up here.
*/
sgl = esas2r_alloc_sgl(a);
if (unlikely(sgl == NULL))
return false;
/* Calculate the length of the last SGE filled in */
sgelen = (u8)((u8 *)sgc->sge.a64.curr
- (u8 *)sgc->sge.a64.last);
/*
* Copy the last SGE filled in to the first entry of
* the new SGL to make room for the chain entry.
*/
memcpy(sgl->virt_addr, sgc->sge.a64.last, sgelen);
/* Figure out the new curr pointer in the new segment */
sgc->sge.a64.curr =
(struct atto_vda_sge *)((u8 *)sgl->virt_addr +
sgelen);
/* Set the limit pointer and build the chain entry */
sgc->sge.a64.limit =
(struct atto_vda_sge *)((u8 *)sgl->virt_addr
+ sgl_page_size
- sizeof(struct
atto_vda_sge));
sgc->sge.a64.last->length = cpu_to_le32(
SGE_CHAIN | SGE_ADDR_64);
sgc->sge.a64.last->address =
cpu_to_le64(sgl->phys_addr);
/*
* Now, if there was a previous chain entry, then
* update it to contain the length of this segment
* and size of this chain. otherwise this is the
* first SGL, so set the chain_offset in the request.
*/
if (sgc->sge.a64.chain) {
sgc->sge.a64.chain->length |=
cpu_to_le32(
((u8 *)(sgc->sge.a64.
last + 1)
- (u8 *)rq->sg_table->
virt_addr)
+ sizeof(struct atto_vda_sge) *
LOBIT(SGE_CHAIN_SZ));
} else {
vrq->scsi.chain_offset = (u8)
((u8 *)sgc->
sge.a64.last -
(u8 *)vrq);
/*
* This is the first SGL, so set the
* chain_offset and the VDA request size in
* the request.
*/
rq->vda_req_sz =
(vrq->scsi.chain_offset +
sizeof(struct atto_vda_sge) +
3)
/ sizeof(u32);
}
/*
* Remember this so when we get a new SGL filled in we
* can update the length of this chain entry.
*/
sgc->sge.a64.chain = sgc->sge.a64.last;
/* Now link the new SGL onto the primary request. */
list_add(&sgl->next_desc, &rq->sg_table_head);
}
/* Update last one filled in */
sgc->sge.a64.last = sgc->sge.a64.curr;
/* Build the new SGE and update the S/G context */
sgc->sge.a64.curr->length = cpu_to_le32(SGE_ADDR_64 | len);
sgc->sge.a64.curr->address = cpu_to_le32(addr);
sgc->sge.a64.curr++;
sgc->cur_offset += len;
sgc->length -= len;
/*
* Check if we previously split an entry. If so we have to
* pick up where we left off.
*/
if (rem) {
addr += len;
len = rem;
rem = 0;
goto another_entry;
}
}
/* Mark the end of the SGL */
sgc->sge.a64.last->length |= cpu_to_le32(SGE_LAST);
/*
* If there was a previous chain entry, update the length to indicate
* the length of this last segment.
*/
if (sgc->sge.a64.chain) {
sgc->sge.a64.chain->length |= cpu_to_le32(
((u8 *)(sgc->sge.a64.curr) -
(u8 *)rq->sg_table->virt_addr));
} else {
u16 reqsize;
/*
* The entire VDA request was not used so lets
* set the size of the VDA request to be DMA'd
*/
reqsize =
((u16)((u8 *)sgc->sge.a64.last - (u8 *)vrq)
+ sizeof(struct atto_vda_sge) + 3) / sizeof(u32);
/*
* Only update the request size if it is bigger than what is
* already there. We can come in here twice for some management
* commands.
*/
if (reqsize > rq->vda_req_sz)
rq->vda_req_sz = reqsize;
}
return true;
}
/*
* Create PRD list for each I-block consumed by the command. This routine
* determines how much data is required from each I-block being consumed
* by the command. The first and last I-blocks can be partials and all of
* the I-blocks in between are for a full I-block of data.
*
* The interleave size is used to determine the number of bytes in the 1st
* I-block and the remaining I-blocks are what remeains.
*/
static bool esas2r_build_prd_iblk(struct esas2r_adapter *a,
struct esas2r_sg_context *sgc)
{
struct esas2r_request *rq = sgc->first_req;
u64 addr;
u32 len;
struct esas2r_mem_desc *sgl;
u32 numchain = 1;
u32 rem = 0;
while (sgc->length) {
/* Get the next address/length pair */
len = (*sgc->get_phys_addr)(sgc, &addr);
if (unlikely(len == 0))
return false;
/* If current length is more than what's left, stop there */
if (unlikely(len > sgc->length))
len = sgc->length;
another_entry:
/* Limit to a round number less than the maximum length */
if (len > PRD_LEN_MAX) {
/*
* Save the remainder of the split. whenever we limit
* an entry we come back around to build entries out
* of the leftover. We do this to prevent multiple
* calls to the get_phys_addr() function for an SGE
* that is too large.
*/
rem = len - PRD_LEN_MAX;
len = PRD_LEN_MAX;
}
/* See if we need to allocate a new SGL */
if (sgc->sge.prd.sge_cnt == 0) {
if (len == sgc->length) {
/*
* We only have 1 PRD entry left.
* It can be placed where the chain
* entry would have gone
*/
/* Build the simple SGE */
sgc->sge.prd.curr->ctl_len = cpu_to_le32(
PRD_DATA | len);
sgc->sge.prd.curr->address = cpu_to_le64(addr);
/* Adjust length related fields */
sgc->cur_offset += len;
sgc->length -= len;
/* We use the reserved chain entry for data */
numchain = 0;
break;
}
if (sgc->sge.prd.chain) {
/*
* Fill # of entries of current SGL in previous
* chain the length of this current SGL may not
* full.
*/
sgc->sge.prd.chain->ctl_len |= cpu_to_le32(
sgc->sge.prd.sgl_max_cnt);
}
/*
* If no SGls are available, return failure. The
* caller can call us later with the current context
* to pick up here.
*/
sgl = esas2r_alloc_sgl(a);
if (unlikely(sgl == NULL))
return false;
/*
* Link the new SGL onto the chain
* They are in reverse order
*/
list_add(&sgl->next_desc, &rq->sg_table_head);
/*
* An SGL was just filled in and we are starting
* a new SGL. Prime the chain of the ending SGL with
* info that points to the new SGL. The length gets
* filled in when the new SGL is filled or ended
*/
sgc->sge.prd.chain = sgc->sge.prd.curr;
sgc->sge.prd.chain->ctl_len = cpu_to_le32(PRD_CHAIN);
sgc->sge.prd.chain->address =
cpu_to_le64(sgl->phys_addr);
/*
* Start a new segment.
* Take one away and save for chain SGE
*/
sgc->sge.prd.curr =
(struct atto_physical_region_description *)sgl
->
virt_addr;
sgc->sge.prd.sge_cnt = sgc->sge.prd.sgl_max_cnt - 1;
}
sgc->sge.prd.sge_cnt--;
/* Build the simple SGE */
sgc->sge.prd.curr->ctl_len = cpu_to_le32(PRD_DATA | len);
sgc->sge.prd.curr->address = cpu_to_le64(addr);
/* Used another element. Point to the next one */
sgc->sge.prd.curr++;
/* Adjust length related fields */
sgc->cur_offset += len;
sgc->length -= len;
/*
* Check if we previously split an entry. If so we have to
* pick up where we left off.
*/
if (rem) {
addr += len;
len = rem;
rem = 0;
goto another_entry;
}
}
if (!list_empty(&rq->sg_table_head)) {
if (sgc->sge.prd.chain) {
sgc->sge.prd.chain->ctl_len |=
cpu_to_le32(sgc->sge.prd.sgl_max_cnt
- sgc->sge.prd.sge_cnt
- numchain);
}
}
return true;
}
bool esas2r_build_sg_list_prd(struct esas2r_adapter *a,
struct esas2r_sg_context *sgc)
{
struct esas2r_request *rq = sgc->first_req;
u32 len = sgc->length;
struct esas2r_target *t = a->targetdb + rq->target_id;
u8 is_i_o = 0;
u16 reqsize;
struct atto_physical_region_description *curr_iblk_chn;
u8 *cdb = (u8 *)&rq->vrq->scsi.cdb[0];
/*
* extract LBA from command so we can determine
* the I-Block boundary
*/
if (rq->vrq->scsi.function == VDA_FUNC_SCSI
&& t->target_state == TS_PRESENT
&& !(t->flags & TF_PASS_THRU)) {
u32 lbalo = 0;
switch (rq->vrq->scsi.cdb[0]) {
case READ_16:
case WRITE_16:
{
lbalo =
MAKEDWORD(MAKEWORD(cdb[9],
cdb[8]),
MAKEWORD(cdb[7],
cdb[6]));
is_i_o = 1;
break;
}
case READ_12:
case WRITE_12:
case READ_10:
case WRITE_10:
{
lbalo =
MAKEDWORD(MAKEWORD(cdb[5],
cdb[4]),
MAKEWORD(cdb[3],
cdb[2]));
is_i_o = 1;
break;
}
case READ_6:
case WRITE_6:
{
lbalo =
MAKEDWORD(MAKEWORD(cdb[3],
cdb[2]),
MAKEWORD(cdb[1] & 0x1F,
0));
is_i_o = 1;
break;
}
default:
break;
}
if (is_i_o) {
u32 startlba;
rq->vrq->scsi.iblk_cnt_prd = 0;
/* Determine size of 1st I-block PRD list */
startlba = t->inter_block - (lbalo & (t->inter_block -
1));
sgc->length = startlba * t->block_size;
/* Chk if the 1st iblk chain starts at base of Iblock */
if ((lbalo & (t->inter_block - 1)) == 0)
rq->flags |= RF_1ST_IBLK_BASE;
if (sgc->length > len)
sgc->length = len;
} else {
sgc->length = len;
}
} else {
sgc->length = len;
}
/* get our starting chain address */
curr_iblk_chn =
(struct atto_physical_region_description *)sgc->sge.a64.curr;
sgc->sge.prd.sgl_max_cnt = sgl_page_size /
sizeof(struct
atto_physical_region_description);
/* create all of the I-block PRD lists */
while (len) {
sgc->sge.prd.sge_cnt = 0;
sgc->sge.prd.chain = NULL;
sgc->sge.prd.curr = curr_iblk_chn;
/* increment to next I-Block */
len -= sgc->length;
/* go build the next I-Block PRD list */
if (unlikely(!esas2r_build_prd_iblk(a, sgc)))
return false;
curr_iblk_chn++;
if (is_i_o) {
rq->vrq->scsi.iblk_cnt_prd++;
if (len > t->inter_byte)
sgc->length = t->inter_byte;
else
sgc->length = len;
}
}
/* figure out the size used of the VDA request */
reqsize = ((u16)((u8 *)curr_iblk_chn - (u8 *)rq->vrq))
/ sizeof(u32);
/*
* only update the request size if it is bigger than what is
* already there. we can come in here twice for some management
* commands.
*/
if (reqsize > rq->vda_req_sz)
rq->vda_req_sz = reqsize;
return true;
}
static void esas2r_handle_pending_reset(struct esas2r_adapter *a, u32 currtime)
{
u32 delta = currtime - a->chip_init_time;
if (delta <= ESAS2R_CHPRST_WAIT_TIME) {
/* Wait before accessing registers */
} else if (delta >= ESAS2R_CHPRST_TIME) {
/*
* The last reset failed so try again. Reset
* processing will give up after three tries.
*/
esas2r_local_reset_adapter(a);
} else {
/* We can now see if the firmware is ready */
u32 doorbell;
doorbell = esas2r_read_register_dword(a, MU_DOORBELL_OUT);
if (doorbell == 0xFFFFFFFF || !(doorbell & DRBL_FORCE_INT)) {
esas2r_force_interrupt(a);
} else {
u32 ver = (doorbell & DRBL_FW_VER_MSK);
/* Driver supports API version 0 and 1 */
esas2r_write_register_dword(a, MU_DOORBELL_OUT,
doorbell);
if (ver == DRBL_FW_VER_0) {
set_bit(AF_CHPRST_DETECTED, &a->flags);
set_bit(AF_LEGACY_SGE_MODE, &a->flags);
a->max_vdareq_size = 128;
a->build_sgl = esas2r_build_sg_list_sge;
} else if (ver == DRBL_FW_VER_1) {
set_bit(AF_CHPRST_DETECTED, &a->flags);
clear_bit(AF_LEGACY_SGE_MODE, &a->flags);
a->max_vdareq_size = 1024;
a->build_sgl = esas2r_build_sg_list_prd;
} else {
esas2r_local_reset_adapter(a);
}
}
}
}
/* This function must be called once per timer tick */
void esas2r_timer_tick(struct esas2r_adapter *a)
{
u32 currtime = jiffies_to_msecs(jiffies);
u32 deltatime = currtime - a->last_tick_time;
a->last_tick_time = currtime;
/* count down the uptime */
if (a->chip_uptime &&
!test_bit(AF_CHPRST_PENDING, &a->flags) &&
!test_bit(AF_DISC_PENDING, &a->flags)) {
if (deltatime >= a->chip_uptime)
a->chip_uptime = 0;
else
a->chip_uptime -= deltatime;
}
if (test_bit(AF_CHPRST_PENDING, &a->flags)) {
if (!test_bit(AF_CHPRST_NEEDED, &a->flags) &&
!test_bit(AF_CHPRST_DETECTED, &a->flags))
esas2r_handle_pending_reset(a, currtime);
} else {
if (test_bit(AF_DISC_PENDING, &a->flags))
esas2r_disc_check_complete(a);
if (test_bit(AF_HEARTBEAT_ENB, &a->flags)) {
if (test_bit(AF_HEARTBEAT, &a->flags)) {
if ((currtime - a->heartbeat_time) >=
ESAS2R_HEARTBEAT_TIME) {
clear_bit(AF_HEARTBEAT, &a->flags);
esas2r_hdebug("heartbeat failed");
esas2r_log(ESAS2R_LOG_CRIT,
"heartbeat failed");
esas2r_bugon();
esas2r_local_reset_adapter(a);
}
} else {
set_bit(AF_HEARTBEAT, &a->flags);
a->heartbeat_time = currtime;
esas2r_force_interrupt(a);
}
}
}
if (atomic_read(&a->disable_cnt) == 0)
esas2r_do_deferred_processes(a);
}
/*
* Send the specified task management function to the target and LUN
* specified in rqaux. in addition, immediately abort any commands that
* are queued but not sent to the device according to the rules specified
* by the task management function.
*/
bool esas2r_send_task_mgmt(struct esas2r_adapter *a,
struct esas2r_request *rqaux, u8 task_mgt_func)
{
u16 targetid = rqaux->target_id;
u8 lun = (u8)le32_to_cpu(rqaux->vrq->scsi.flags);
bool ret = false;
struct esas2r_request *rq;
struct list_head *next, *element;
unsigned long flags;
LIST_HEAD(comp_list);
esas2r_trace_enter();
esas2r_trace("rqaux:%p", rqaux);
esas2r_trace("task_mgt_func:%x", task_mgt_func);
spin_lock_irqsave(&a->queue_lock, flags);
/* search the defer queue looking for requests for the device */
list_for_each_safe(element, next, &a->defer_list) {
rq = list_entry(element, struct esas2r_request, req_list);
if (rq->vrq->scsi.function == VDA_FUNC_SCSI
&& rq->target_id == targetid
&& (((u8)le32_to_cpu(rq->vrq->scsi.flags)) == lun
|| task_mgt_func == 0x20)) { /* target reset */
/* Found a request affected by the task management */
if (rq->req_stat == RS_PENDING) {
/*
* The request is pending or waiting. We can
* safelycomplete the request now.
*/
if (esas2r_ioreq_aborted(a, rq, RS_ABORTED))
list_add_tail(&rq->comp_list,
&comp_list);
}
}
}
/* Send the task management request to the firmware */
rqaux->sense_len = 0;
rqaux->vrq->scsi.length = 0;
rqaux->target_id = targetid;
rqaux->vrq->scsi.flags |= cpu_to_le32(lun);
memset(rqaux->vrq->scsi.cdb, 0, sizeof(rqaux->vrq->scsi.cdb));
rqaux->vrq->scsi.flags |=
cpu_to_le16(task_mgt_func * LOBIT(FCP_CMND_TM_MASK));
if (test_bit(AF_FLASHING, &a->flags)) {
/* Assume success. if there are active requests, return busy */
rqaux->req_stat = RS_SUCCESS;
list_for_each_safe(element, next, &a->active_list) {
rq = list_entry(element, struct esas2r_request,
req_list);
if (rq->vrq->scsi.function == VDA_FUNC_SCSI
&& rq->target_id == targetid
&& (((u8)le32_to_cpu(rq->vrq->scsi.flags)) == lun
|| task_mgt_func == 0x20)) /* target reset */
rqaux->req_stat = RS_BUSY;
}
ret = true;
}
spin_unlock_irqrestore(&a->queue_lock, flags);
if (!test_bit(AF_FLASHING, &a->flags))
esas2r_start_request(a, rqaux);
esas2r_comp_list_drain(a, &comp_list);
if (atomic_read(&a->disable_cnt) == 0)
esas2r_do_deferred_processes(a);
esas2r_trace_exit();
return ret;
}
void esas2r_reset_bus(struct esas2r_adapter *a)
{
esas2r_log(ESAS2R_LOG_INFO, "performing a bus reset");
if (!test_bit(AF_DEGRADED_MODE, &a->flags) &&
!test_bit(AF_CHPRST_PENDING, &a->flags) &&
!test_bit(AF_DISC_PENDING, &a->flags)) {
set_bit(AF_BUSRST_NEEDED, &a->flags);
set_bit(AF_BUSRST_PENDING, &a->flags);
set_bit(AF_OS_RESET, &a->flags);
esas2r_schedule_tasklet(a);
}
}
bool esas2r_ioreq_aborted(struct esas2r_adapter *a, struct esas2r_request *rq,
u8 status)
{
esas2r_trace_enter();
esas2r_trace("rq:%p", rq);
list_del_init(&rq->req_list);
if (rq->timeout > RQ_MAX_TIMEOUT) {
/*
* The request timed out, but we could not abort it because a
* chip reset occurred. Return busy status.
*/
rq->req_stat = RS_BUSY;
esas2r_trace_exit();
return true;
}
rq->req_stat = status;
esas2r_trace_exit();
return true;
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_io.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_disc.c
* esas2r device discovery routines
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#include "esas2r.h"
/* Miscellaneous internal discovery routines */
static void esas2r_disc_abort(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_continue(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_fix_curr_requests(struct esas2r_adapter *a);
static u32 esas2r_disc_get_phys_addr(struct esas2r_sg_context *sgc, u64 *addr);
static bool esas2r_disc_start_request(struct esas2r_adapter *a,
struct esas2r_request *rq);
/* Internal discovery routines that process the states */
static bool esas2r_disc_block_dev_scan(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_block_dev_scan_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_dev_add(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_dev_remove(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_part_info(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_part_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_passthru_dev_info(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_passthru_dev_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_passthru_dev_addr(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_passthru_dev_addr_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_raid_grp_info(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_raid_grp_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
void esas2r_disc_initialize(struct esas2r_adapter *a)
{
struct esas2r_sas_nvram *nvr = a->nvram;
esas2r_trace_enter();
clear_bit(AF_DISC_IN_PROG, &a->flags);
clear_bit(AF2_DEV_SCAN, &a->flags2);
clear_bit(AF2_DEV_CNT_OK, &a->flags2);
a->disc_start_time = jiffies_to_msecs(jiffies);
a->disc_wait_time = nvr->dev_wait_time * 1000;
a->disc_wait_cnt = nvr->dev_wait_count;
if (a->disc_wait_cnt > ESAS2R_MAX_TARGETS)
a->disc_wait_cnt = ESAS2R_MAX_TARGETS;
/*
* If we are doing chip reset or power management processing, always
* wait for devices. use the NVRAM device count if it is greater than
* previously discovered devices.
*/
esas2r_hdebug("starting discovery...");
a->general_req.interrupt_cx = NULL;
if (test_bit(AF_CHPRST_DETECTED, &a->flags) ||
test_bit(AF_POWER_MGT, &a->flags)) {
if (a->prev_dev_cnt == 0) {
/* Don't bother waiting if there is nothing to wait
* for.
*/
a->disc_wait_time = 0;
} else {
/*
* Set the device wait count to what was previously
* found. We don't care if the user only configured
* a time because we know the exact count to wait for.
* There is no need to honor the user's wishes to
* always wait the full time.
*/
a->disc_wait_cnt = a->prev_dev_cnt;
/*
* bump the minimum wait time to 15 seconds since the
* default is 3 (system boot or the boot driver usually
* buys us more time).
*/
if (a->disc_wait_time < 15000)
a->disc_wait_time = 15000;
}
}
esas2r_trace("disc wait count: %d", a->disc_wait_cnt);
esas2r_trace("disc wait time: %d", a->disc_wait_time);
if (a->disc_wait_time == 0)
esas2r_disc_check_complete(a);
esas2r_trace_exit();
}
void esas2r_disc_start_waiting(struct esas2r_adapter *a)
{
unsigned long flags;
spin_lock_irqsave(&a->mem_lock, flags);
if (a->disc_ctx.disc_evt)
esas2r_disc_start_port(a);
spin_unlock_irqrestore(&a->mem_lock, flags);
}
void esas2r_disc_check_for_work(struct esas2r_adapter *a)
{
struct esas2r_request *rq = &a->general_req;
/* service any pending interrupts first */
esas2r_polled_interrupt(a);
/*
* now, interrupt processing may have queued up a discovery event. go
* see if we have one to start. we couldn't start it in the ISR since
* polled discovery would cause a deadlock.
*/
esas2r_disc_start_waiting(a);
if (rq->interrupt_cx == NULL)
return;
if (rq->req_stat == RS_STARTED
&& rq->timeout <= RQ_MAX_TIMEOUT) {
/* wait for the current discovery request to complete. */
esas2r_wait_request(a, rq);
if (rq->req_stat == RS_TIMEOUT) {
esas2r_disc_abort(a, rq);
esas2r_local_reset_adapter(a);
return;
}
}
if (rq->req_stat == RS_PENDING
|| rq->req_stat == RS_STARTED)
return;
esas2r_disc_continue(a, rq);
}
void esas2r_disc_check_complete(struct esas2r_adapter *a)
{
unsigned long flags;
esas2r_trace_enter();
/* check to see if we should be waiting for devices */
if (a->disc_wait_time) {
u32 currtime = jiffies_to_msecs(jiffies);
u32 time = currtime - a->disc_start_time;
/*
* Wait until the device wait time is exhausted or the device
* wait count is satisfied.
*/
if (time < a->disc_wait_time
&& (esas2r_targ_db_get_tgt_cnt(a) < a->disc_wait_cnt
|| a->disc_wait_cnt == 0)) {
/* After three seconds of waiting, schedule a scan. */
if (time >= 3000
&& !test_and_set_bit(AF2_DEV_SCAN, &a->flags2)) {
spin_lock_irqsave(&a->mem_lock, flags);
esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
spin_unlock_irqrestore(&a->mem_lock, flags);
}
esas2r_trace_exit();
return;
}
/*
* We are done waiting...we think. Adjust the wait time to
* consume events after the count is met.
*/
if (!test_and_set_bit(AF2_DEV_CNT_OK, &a->flags2))
a->disc_wait_time = time + 3000;
/* If we haven't done a full scan yet, do it now. */
if (!test_and_set_bit(AF2_DEV_SCAN, &a->flags2)) {
spin_lock_irqsave(&a->mem_lock, flags);
esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
spin_unlock_irqrestore(&a->mem_lock, flags);
esas2r_trace_exit();
return;
}
/*
* Now, if there is still time left to consume events, continue
* waiting.
*/
if (time < a->disc_wait_time) {
esas2r_trace_exit();
return;
}
} else {
if (!test_and_set_bit(AF2_DEV_SCAN, &a->flags2)) {
spin_lock_irqsave(&a->mem_lock, flags);
esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
spin_unlock_irqrestore(&a->mem_lock, flags);
}
}
/* We want to stop waiting for devices. */
a->disc_wait_time = 0;
if (test_bit(AF_DISC_POLLED, &a->flags) &&
test_bit(AF_DISC_IN_PROG, &a->flags)) {
/*
* Polled discovery is still pending so continue the active
* discovery until it is done. At that point, we will stop
* polled discovery and transition to interrupt driven
* discovery.
*/
} else {
/*
* Done waiting for devices. Note that we get here immediately
* after deferred waiting completes because that is interrupt
* driven; i.e. There is no transition.
*/
esas2r_disc_fix_curr_requests(a);
clear_bit(AF_DISC_PENDING, &a->flags);
/*
* We have deferred target state changes until now because we
* don't want to report any removals (due to the first arrival)
* until the device wait time expires.
*/
set_bit(AF_PORT_CHANGE, &a->flags);
}
esas2r_trace_exit();
}
void esas2r_disc_queue_event(struct esas2r_adapter *a, u8 disc_evt)
{
struct esas2r_disc_context *dc = &a->disc_ctx;
esas2r_trace_enter();
esas2r_trace("disc_event: %d", disc_evt);
/* Initialize the discovery context */
dc->disc_evt |= disc_evt;
/*
* Don't start discovery before or during polled discovery. if we did,
* we would have a deadlock if we are in the ISR already.
*/
if (!test_bit(AF_CHPRST_PENDING, &a->flags) &&
!test_bit(AF_DISC_POLLED, &a->flags))
esas2r_disc_start_port(a);
esas2r_trace_exit();
}
bool esas2r_disc_start_port(struct esas2r_adapter *a)
{
struct esas2r_request *rq = &a->general_req;
struct esas2r_disc_context *dc = &a->disc_ctx;
bool ret;
esas2r_trace_enter();
if (test_bit(AF_DISC_IN_PROG, &a->flags)) {
esas2r_trace_exit();
return false;
}
/* If there is a discovery waiting, process it. */
if (dc->disc_evt) {
if (test_bit(AF_DISC_POLLED, &a->flags)
&& a->disc_wait_time == 0) {
/*
* We are doing polled discovery, but we no longer want
* to wait for devices. Stop polled discovery and
* transition to interrupt driven discovery.
*/
esas2r_trace_exit();
return false;
}
} else {
/* Discovery is complete. */
esas2r_hdebug("disc done");
set_bit(AF_PORT_CHANGE, &a->flags);
esas2r_trace_exit();
return false;
}
/* Handle the discovery context */
esas2r_trace("disc_evt: %d", dc->disc_evt);
set_bit(AF_DISC_IN_PROG, &a->flags);
dc->flags = 0;
if (test_bit(AF_DISC_POLLED, &a->flags))
dc->flags |= DCF_POLLED;
rq->interrupt_cx = dc;
rq->req_stat = RS_SUCCESS;
/* Decode the event code */
if (dc->disc_evt & DCDE_DEV_SCAN) {
dc->disc_evt &= ~DCDE_DEV_SCAN;
dc->flags |= DCF_DEV_SCAN;
dc->state = DCS_BLOCK_DEV_SCAN;
} else if (dc->disc_evt & DCDE_DEV_CHANGE) {
dc->disc_evt &= ~DCDE_DEV_CHANGE;
dc->flags |= DCF_DEV_CHANGE;
dc->state = DCS_DEV_RMV;
}
/* Continue interrupt driven discovery */
if (!test_bit(AF_DISC_POLLED, &a->flags))
ret = esas2r_disc_continue(a, rq);
else
ret = true;
esas2r_trace_exit();
return ret;
}
static bool esas2r_disc_continue(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
bool rslt;
/* Device discovery/removal */
while (dc->flags & (DCF_DEV_CHANGE | DCF_DEV_SCAN)) {
rslt = false;
switch (dc->state) {
case DCS_DEV_RMV:
rslt = esas2r_disc_dev_remove(a, rq);
break;
case DCS_DEV_ADD:
rslt = esas2r_disc_dev_add(a, rq);
break;
case DCS_BLOCK_DEV_SCAN:
rslt = esas2r_disc_block_dev_scan(a, rq);
break;
case DCS_RAID_GRP_INFO:
rslt = esas2r_disc_raid_grp_info(a, rq);
break;
case DCS_PART_INFO:
rslt = esas2r_disc_part_info(a, rq);
break;
case DCS_PT_DEV_INFO:
rslt = esas2r_disc_passthru_dev_info(a, rq);
break;
case DCS_PT_DEV_ADDR:
rslt = esas2r_disc_passthru_dev_addr(a, rq);
break;
case DCS_DISC_DONE:
dc->flags &= ~(DCF_DEV_CHANGE | DCF_DEV_SCAN);
break;
default:
esas2r_bugon();
dc->state = DCS_DISC_DONE;
break;
}
if (rslt)
return true;
}
/* Discovery is done...for now. */
rq->interrupt_cx = NULL;
if (!test_bit(AF_DISC_PENDING, &a->flags))
esas2r_disc_fix_curr_requests(a);
clear_bit(AF_DISC_IN_PROG, &a->flags);
/* Start the next discovery. */
return esas2r_disc_start_port(a);
}
static bool esas2r_disc_start_request(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
unsigned long flags;
/* Set the timeout to a minimum value. */
if (rq->timeout < ESAS2R_DEFAULT_TMO)
rq->timeout = ESAS2R_DEFAULT_TMO;
/*
* Override the request type to distinguish discovery requests. If we
* end up deferring the request, esas2r_disc_local_start_request()
* will be called to restart it.
*/
rq->req_type = RT_DISC_REQ;
spin_lock_irqsave(&a->queue_lock, flags);
if (!test_bit(AF_CHPRST_PENDING, &a->flags) &&
!test_bit(AF_FLASHING, &a->flags))
esas2r_disc_local_start_request(a, rq);
else
list_add_tail(&rq->req_list, &a->defer_list);
spin_unlock_irqrestore(&a->queue_lock, flags);
return true;
}
void esas2r_disc_local_start_request(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
esas2r_trace_enter();
list_add_tail(&rq->req_list, &a->active_list);
esas2r_start_vda_request(a, rq);
esas2r_trace_exit();
return;
}
static void esas2r_disc_abort(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
esas2r_trace_enter();
/* abort the current discovery */
dc->state = DCS_DISC_DONE;
esas2r_trace_exit();
}
static bool esas2r_disc_block_dev_scan(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
bool rslt;
esas2r_trace_enter();
esas2r_rq_init_request(rq, a);
esas2r_build_mgt_req(a,
rq,
VDAMGT_DEV_SCAN,
0,
0,
0,
NULL);
rq->comp_cb = esas2r_disc_block_dev_scan_cb;
rq->timeout = 30000;
rq->interrupt_cx = dc;
rslt = esas2r_disc_start_request(a, rq);
esas2r_trace_exit();
return rslt;
}
static void esas2r_disc_block_dev_scan_cb(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
unsigned long flags;
esas2r_trace_enter();
spin_lock_irqsave(&a->mem_lock, flags);
if (rq->req_stat == RS_SUCCESS)
dc->scan_gen = rq->func_rsp.mgt_rsp.scan_generation;
dc->state = DCS_RAID_GRP_INFO;
dc->raid_grp_ix = 0;
esas2r_rq_destroy_request(rq, a);
/* continue discovery if it's interrupt driven */
if (!(dc->flags & DCF_POLLED))
esas2r_disc_continue(a, rq);
spin_unlock_irqrestore(&a->mem_lock, flags);
esas2r_trace_exit();
}
static bool esas2r_disc_raid_grp_info(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
bool rslt;
struct atto_vda_grp_info *grpinfo;
esas2r_trace_enter();
esas2r_trace("raid_group_idx: %d", dc->raid_grp_ix);
if (dc->raid_grp_ix >= VDA_MAX_RAID_GROUPS) {
dc->state = DCS_DISC_DONE;
esas2r_trace_exit();
return false;
}
esas2r_rq_init_request(rq, a);
grpinfo = &rq->vda_rsp_data->mgt_data.data.grp_info;
memset(grpinfo, 0, sizeof(struct atto_vda_grp_info));
esas2r_build_mgt_req(a,
rq,
VDAMGT_GRP_INFO,
dc->scan_gen,
0,
sizeof(struct atto_vda_grp_info),
NULL);
grpinfo->grp_index = dc->raid_grp_ix;
rq->comp_cb = esas2r_disc_raid_grp_info_cb;
rq->interrupt_cx = dc;
rslt = esas2r_disc_start_request(a, rq);
esas2r_trace_exit();
return rslt;
}
static void esas2r_disc_raid_grp_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
unsigned long flags;
struct atto_vda_grp_info *grpinfo;
esas2r_trace_enter();
spin_lock_irqsave(&a->mem_lock, flags);
if (rq->req_stat == RS_SCAN_GEN) {
dc->scan_gen = rq->func_rsp.mgt_rsp.scan_generation;
dc->raid_grp_ix = 0;
goto done;
}
if (rq->req_stat == RS_SUCCESS) {
grpinfo = &rq->vda_rsp_data->mgt_data.data.grp_info;
if (grpinfo->status != VDA_GRP_STAT_ONLINE
&& grpinfo->status != VDA_GRP_STAT_DEGRADED) {
/* go to the next group. */
dc->raid_grp_ix++;
} else {
memcpy(&dc->raid_grp_name[0],
&grpinfo->grp_name[0],
sizeof(grpinfo->grp_name));
dc->interleave = le32_to_cpu(grpinfo->interleave);
dc->block_size = le32_to_cpu(grpinfo->block_size);
dc->state = DCS_PART_INFO;
dc->part_num = 0;
}
} else {
if (!(rq->req_stat == RS_GRP_INVALID)) {
esas2r_log(ESAS2R_LOG_WARN,
"A request for RAID group info failed - "
"returned with %x",
rq->req_stat);
}
dc->dev_ix = 0;
dc->state = DCS_PT_DEV_INFO;
}
done:
esas2r_rq_destroy_request(rq, a);
/* continue discovery if it's interrupt driven */
if (!(dc->flags & DCF_POLLED))
esas2r_disc_continue(a, rq);
spin_unlock_irqrestore(&a->mem_lock, flags);
esas2r_trace_exit();
}
static bool esas2r_disc_part_info(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
bool rslt;
struct atto_vdapart_info *partinfo;
esas2r_trace_enter();
esas2r_trace("part_num: %d", dc->part_num);
if (dc->part_num >= VDA_MAX_PARTITIONS) {
dc->state = DCS_RAID_GRP_INFO;
dc->raid_grp_ix++;
esas2r_trace_exit();
return false;
}
esas2r_rq_init_request(rq, a);
partinfo = &rq->vda_rsp_data->mgt_data.data.part_info;
memset(partinfo, 0, sizeof(struct atto_vdapart_info));
esas2r_build_mgt_req(a,
rq,
VDAMGT_PART_INFO,
dc->scan_gen,
0,
sizeof(struct atto_vdapart_info),
NULL);
partinfo->part_no = dc->part_num;
memcpy(&partinfo->grp_name[0],
&dc->raid_grp_name[0],
sizeof(partinfo->grp_name));
rq->comp_cb = esas2r_disc_part_info_cb;
rq->interrupt_cx = dc;
rslt = esas2r_disc_start_request(a, rq);
esas2r_trace_exit();
return rslt;
}
static void esas2r_disc_part_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
unsigned long flags;
struct atto_vdapart_info *partinfo;
esas2r_trace_enter();
spin_lock_irqsave(&a->mem_lock, flags);
if (rq->req_stat == RS_SCAN_GEN) {
dc->scan_gen = rq->func_rsp.mgt_rsp.scan_generation;
dc->raid_grp_ix = 0;
dc->state = DCS_RAID_GRP_INFO;
} else if (rq->req_stat == RS_SUCCESS) {
partinfo = &rq->vda_rsp_data->mgt_data.data.part_info;
dc->part_num = partinfo->part_no;
dc->curr_virt_id = le16_to_cpu(partinfo->target_id);
esas2r_targ_db_add_raid(a, dc);
dc->part_num++;
} else {
if (!(rq->req_stat == RS_PART_LAST)) {
esas2r_log(ESAS2R_LOG_WARN,
"A request for RAID group partition info "
"failed - status:%d", rq->req_stat);
}
dc->state = DCS_RAID_GRP_INFO;
dc->raid_grp_ix++;
}
esas2r_rq_destroy_request(rq, a);
/* continue discovery if it's interrupt driven */
if (!(dc->flags & DCF_POLLED))
esas2r_disc_continue(a, rq);
spin_unlock_irqrestore(&a->mem_lock, flags);
esas2r_trace_exit();
}
static bool esas2r_disc_passthru_dev_info(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
bool rslt;
struct atto_vda_devinfo *devinfo;
esas2r_trace_enter();
esas2r_trace("dev_ix: %d", dc->dev_ix);
esas2r_rq_init_request(rq, a);
devinfo = &rq->vda_rsp_data->mgt_data.data.dev_info;
memset(devinfo, 0, sizeof(struct atto_vda_devinfo));
esas2r_build_mgt_req(a,
rq,
VDAMGT_DEV_PT_INFO,
dc->scan_gen,
dc->dev_ix,
sizeof(struct atto_vda_devinfo),
NULL);
rq->comp_cb = esas2r_disc_passthru_dev_info_cb;
rq->interrupt_cx = dc;
rslt = esas2r_disc_start_request(a, rq);
esas2r_trace_exit();
return rslt;
}
static void esas2r_disc_passthru_dev_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
unsigned long flags;
struct atto_vda_devinfo *devinfo;
esas2r_trace_enter();
spin_lock_irqsave(&a->mem_lock, flags);
if (rq->req_stat == RS_SCAN_GEN) {
dc->scan_gen = rq->func_rsp.mgt_rsp.scan_generation;
dc->dev_ix = 0;
dc->state = DCS_PT_DEV_INFO;
} else if (rq->req_stat == RS_SUCCESS) {
devinfo = &rq->vda_rsp_data->mgt_data.data.dev_info;
dc->dev_ix = le16_to_cpu(rq->func_rsp.mgt_rsp.dev_index);
dc->curr_virt_id = le16_to_cpu(devinfo->target_id);
if (le16_to_cpu(devinfo->features) & VDADEVFEAT_PHYS_ID) {
dc->curr_phys_id =
le16_to_cpu(devinfo->phys_target_id);
dc->dev_addr_type = ATTO_GDA_AT_PORT;
dc->state = DCS_PT_DEV_ADDR;
esas2r_trace("curr_virt_id: %d", dc->curr_virt_id);
esas2r_trace("curr_phys_id: %d", dc->curr_phys_id);
} else {
dc->dev_ix++;
}
} else {
if (!(rq->req_stat == RS_DEV_INVALID)) {
esas2r_log(ESAS2R_LOG_WARN,
"A request for device information failed - "
"status:%d", rq->req_stat);
}
dc->state = DCS_DISC_DONE;
}
esas2r_rq_destroy_request(rq, a);
/* continue discovery if it's interrupt driven */
if (!(dc->flags & DCF_POLLED))
esas2r_disc_continue(a, rq);
spin_unlock_irqrestore(&a->mem_lock, flags);
esas2r_trace_exit();
}
static bool esas2r_disc_passthru_dev_addr(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
bool rslt;
struct atto_ioctl *hi;
struct esas2r_sg_context sgc;
esas2r_trace_enter();
esas2r_rq_init_request(rq, a);
/* format the request. */
sgc.cur_offset = NULL;
sgc.get_phys_addr = (PGETPHYSADDR)esas2r_disc_get_phys_addr;
sgc.length = offsetof(struct atto_ioctl, data)
+ sizeof(struct atto_hba_get_device_address);
esas2r_sgc_init(&sgc, a, rq, rq->vrq->ioctl.sge);
esas2r_build_ioctl_req(a, rq, sgc.length, VDA_IOCTL_HBA);
if (!esas2r_build_sg_list(a, rq, &sgc)) {
esas2r_rq_destroy_request(rq, a);
esas2r_trace_exit();
return false;
}
rq->comp_cb = esas2r_disc_passthru_dev_addr_cb;
rq->interrupt_cx = dc;
/* format the IOCTL data. */
hi = (struct atto_ioctl *)a->disc_buffer;
memset(a->disc_buffer, 0, ESAS2R_DISC_BUF_LEN);
hi->version = ATTO_VER_GET_DEV_ADDR0;
hi->function = ATTO_FUNC_GET_DEV_ADDR;
hi->flags = HBAF_TUNNEL;
hi->data.get_dev_addr.target_id = le32_to_cpu(dc->curr_phys_id);
hi->data.get_dev_addr.addr_type = dc->dev_addr_type;
/* start it up. */
rslt = esas2r_disc_start_request(a, rq);
esas2r_trace_exit();
return rslt;
}
static void esas2r_disc_passthru_dev_addr_cb(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
struct esas2r_target *t = NULL;
unsigned long flags;
struct atto_ioctl *hi;
u16 addrlen;
esas2r_trace_enter();
spin_lock_irqsave(&a->mem_lock, flags);
hi = (struct atto_ioctl *)a->disc_buffer;
if (rq->req_stat == RS_SUCCESS
&& hi->status == ATTO_STS_SUCCESS) {
addrlen = le16_to_cpu(hi->data.get_dev_addr.addr_len);
if (dc->dev_addr_type == ATTO_GDA_AT_PORT) {
if (addrlen == sizeof(u64))
memcpy(&dc->sas_addr,
&hi->data.get_dev_addr.address[0],
addrlen);
else
memset(&dc->sas_addr, 0, sizeof(dc->sas_addr));
/* Get the unique identifier. */
dc->dev_addr_type = ATTO_GDA_AT_UNIQUE;
goto next_dev_addr;
} else {
/* Add the pass through target. */
if (HIBYTE(addrlen) == 0) {
t = esas2r_targ_db_add_pthru(a,
dc,
&hi->data.
get_dev_addr.
address[0],
(u8)hi->data.
get_dev_addr.
addr_len);
if (t)
memcpy(&t->sas_addr, &dc->sas_addr,
sizeof(t->sas_addr));
} else {
/* getting the back end data failed */
esas2r_log(ESAS2R_LOG_WARN,
"an error occurred retrieving the "
"back end data (%s:%d)",
__func__,
__LINE__);
}
}
} else {
/* getting the back end data failed */
esas2r_log(ESAS2R_LOG_WARN,
"an error occurred retrieving the back end data - "
"rq->req_stat:%d hi->status:%d",
rq->req_stat, hi->status);
}
/* proceed to the next device. */
if (dc->flags & DCF_DEV_SCAN) {
dc->dev_ix++;
dc->state = DCS_PT_DEV_INFO;
} else if (dc->flags & DCF_DEV_CHANGE) {
dc->curr_targ++;
dc->state = DCS_DEV_ADD;
} else {
esas2r_bugon();
}
next_dev_addr:
esas2r_rq_destroy_request(rq, a);
/* continue discovery if it's interrupt driven */
if (!(dc->flags & DCF_POLLED))
esas2r_disc_continue(a, rq);
spin_unlock_irqrestore(&a->mem_lock, flags);
esas2r_trace_exit();
}
static u32 esas2r_disc_get_phys_addr(struct esas2r_sg_context *sgc, u64 *addr)
{
struct esas2r_adapter *a = sgc->adapter;
if (sgc->length > ESAS2R_DISC_BUF_LEN) {
esas2r_bugon();
}
*addr = a->uncached_phys
+ (u64)((u8 *)a->disc_buffer - a->uncached);
return sgc->length;
}
static bool esas2r_disc_dev_remove(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
struct esas2r_target *t;
struct esas2r_target *t2;
esas2r_trace_enter();
/* process removals. */
for (t = a->targetdb; t < a->targetdb_end; t++) {
if (t->new_target_state != TS_NOT_PRESENT)
continue;
t->new_target_state = TS_INVALID;
/* remove the right target! */
t2 =
esas2r_targ_db_find_by_virt_id(a,
esas2r_targ_get_id(t,
a));
if (t2)
esas2r_targ_db_remove(a, t2);
}
/* removals complete. process arrivals. */
dc->state = DCS_DEV_ADD;
dc->curr_targ = a->targetdb;
esas2r_trace_exit();
return false;
}
static bool esas2r_disc_dev_add(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_disc_context *dc =
(struct esas2r_disc_context *)rq->interrupt_cx;
struct esas2r_target *t = dc->curr_targ;
if (t >= a->targetdb_end) {
/* done processing state changes. */
dc->state = DCS_DISC_DONE;
} else if (t->new_target_state == TS_PRESENT) {
struct atto_vda_ae_lu *luevt = &t->lu_event;
esas2r_trace_enter();
/* clear this now in case more events come in. */
t->new_target_state = TS_INVALID;
/* setup the discovery context for adding this device. */
dc->curr_virt_id = esas2r_targ_get_id(t, a);
if ((luevt->hdr.bylength >= offsetof(struct atto_vda_ae_lu, id)
+ sizeof(struct atto_vda_ae_lu_tgt_lun_raid))
&& !(luevt->dwevent & VDAAE_LU_PASSTHROUGH)) {
dc->block_size = luevt->id.tgtlun_raid.dwblock_size;
dc->interleave = luevt->id.tgtlun_raid.dwinterleave;
} else {
dc->block_size = 0;
dc->interleave = 0;
}
/* determine the device type being added. */
if (luevt->dwevent & VDAAE_LU_PASSTHROUGH) {
if (luevt->dwevent & VDAAE_LU_PHYS_ID) {
dc->state = DCS_PT_DEV_ADDR;
dc->dev_addr_type = ATTO_GDA_AT_PORT;
dc->curr_phys_id = luevt->wphys_target_id;
} else {
esas2r_log(ESAS2R_LOG_WARN,
"luevt->dwevent does not have the "
"VDAAE_LU_PHYS_ID bit set (%s:%d)",
__func__, __LINE__);
}
} else {
dc->raid_grp_name[0] = 0;
esas2r_targ_db_add_raid(a, dc);
}
esas2r_trace("curr_virt_id: %d", dc->curr_virt_id);
esas2r_trace("curr_phys_id: %d", dc->curr_phys_id);
esas2r_trace("dwevent: %d", luevt->dwevent);
esas2r_trace_exit();
}
if (dc->state == DCS_DEV_ADD) {
/* go to the next device. */
dc->curr_targ++;
}
return false;
}
/*
* When discovery is done, find all requests on defer queue and
* test if they need to be modified. If a target is no longer present
* then complete the request with RS_SEL. Otherwise, update the
* target_id since after a hibernate it can be a different value.
* VDA does not make passthrough target IDs persistent.
*/
static void esas2r_disc_fix_curr_requests(struct esas2r_adapter *a)
{
unsigned long flags;
struct esas2r_target *t;
struct esas2r_request *rq;
struct list_head *element;
/* update virt_targ_id in any outstanding esas2r_requests */
spin_lock_irqsave(&a->queue_lock, flags);
list_for_each(element, &a->defer_list) {
rq = list_entry(element, struct esas2r_request, req_list);
if (rq->vrq->scsi.function == VDA_FUNC_SCSI) {
t = a->targetdb + rq->target_id;
if (t->target_state == TS_PRESENT)
rq->vrq->scsi.target_id = le16_to_cpu(
t->virt_targ_id);
else
rq->req_stat = RS_SEL;
}
}
spin_unlock_irqrestore(&a->queue_lock, flags);
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_disc.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_flash.c
* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "esas2r.h"
/* local macro defs */
#define esas2r_nvramcalc_cksum(n) \
(esas2r_calc_byte_cksum((u8 *)(n), sizeof(struct esas2r_sas_nvram), \
SASNVR_CKSUM_SEED))
#define esas2r_nvramcalc_xor_cksum(n) \
(esas2r_calc_byte_xor_cksum((u8 *)(n), \
sizeof(struct esas2r_sas_nvram), 0))
#define ESAS2R_FS_DRVR_VER 2
static struct esas2r_sas_nvram default_sas_nvram = {
{ 'E', 'S', 'A', 'S' }, /* signature */
SASNVR_VERSION, /* version */
0, /* checksum */
31, /* max_lun_for_target */
SASNVR_PCILAT_MAX, /* pci_latency */
SASNVR1_BOOT_DRVR, /* options1 */
SASNVR2_HEARTBEAT | SASNVR2_SINGLE_BUS /* options2 */
| SASNVR2_SW_MUX_CTRL,
SASNVR_COAL_DIS, /* int_coalescing */
SASNVR_CMDTHR_NONE, /* cmd_throttle */
3, /* dev_wait_time */
1, /* dev_wait_count */
0, /* spin_up_delay */
0, /* ssp_align_rate */
{ 0x50, 0x01, 0x08, 0x60, /* sas_addr */
0x00, 0x00, 0x00, 0x00 },
{ SASNVR_SPEED_AUTO }, /* phy_speed */
{ SASNVR_MUX_DISABLED }, /* SAS multiplexing */
{ 0 }, /* phy_flags */
SASNVR_SORT_SAS_ADDR, /* sort_type */
3, /* dpm_reqcmd_lmt */
3, /* dpm_stndby_time */
0, /* dpm_active_time */
{ 0 }, /* phy_target_id */
SASNVR_VSMH_DISABLED, /* virt_ses_mode */
SASNVR_RWM_DEFAULT, /* read_write_mode */
0, /* link down timeout */
{ 0 } /* reserved */
};
static u8 cmd_to_fls_func[] = {
0xFF,
VDA_FLASH_READ,
VDA_FLASH_BEGINW,
VDA_FLASH_WRITE,
VDA_FLASH_COMMIT,
VDA_FLASH_CANCEL
};
static u8 esas2r_calc_byte_xor_cksum(u8 *addr, u32 len, u8 seed)
{
u32 cksum = seed;
u8 *p = (u8 *)&cksum;
while (len) {
if (((uintptr_t)addr & 3) == 0)
break;
cksum = cksum ^ *addr;
addr++;
len--;
}
while (len >= sizeof(u32)) {
cksum = cksum ^ *(u32 *)addr;
addr += 4;
len -= 4;
}
while (len--) {
cksum = cksum ^ *addr;
addr++;
}
return p[0] ^ p[1] ^ p[2] ^ p[3];
}
static u8 esas2r_calc_byte_cksum(void *addr, u32 len, u8 seed)
{
u8 *p = (u8 *)addr;
u8 cksum = seed;
while (len--)
cksum = cksum + p[len];
return cksum;
}
/* Interrupt callback to process FM API write requests. */
static void esas2r_fmapi_callback(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct atto_vda_flash_req *vrq = &rq->vrq->flash;
struct esas2r_flash_context *fc =
(struct esas2r_flash_context *)rq->interrupt_cx;
if (rq->req_stat == RS_SUCCESS) {
/* Last request was successful. See what to do now. */
switch (vrq->sub_func) {
case VDA_FLASH_BEGINW:
if (fc->sgc.cur_offset == NULL)
goto commit;
vrq->sub_func = VDA_FLASH_WRITE;
rq->req_stat = RS_PENDING;
break;
case VDA_FLASH_WRITE:
commit:
vrq->sub_func = VDA_FLASH_COMMIT;
rq->req_stat = RS_PENDING;
rq->interrupt_cb = fc->interrupt_cb;
break;
default:
break;
}
}
if (rq->req_stat != RS_PENDING)
/*
* All done. call the real callback to complete the FM API
* request. We should only get here if a BEGINW or WRITE
* operation failed.
*/
(*fc->interrupt_cb)(a, rq);
}
/*
* Build a flash request based on the flash context. The request status
* is filled in on an error.
*/
static void build_flash_msg(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_flash_context *fc =
(struct esas2r_flash_context *)rq->interrupt_cx;
struct esas2r_sg_context *sgc = &fc->sgc;
u8 cksum = 0;
/* calculate the checksum */
if (fc->func == VDA_FLASH_BEGINW) {
if (sgc->cur_offset)
cksum = esas2r_calc_byte_xor_cksum(sgc->cur_offset,
sgc->length,
0);
rq->interrupt_cb = esas2r_fmapi_callback;
} else {
rq->interrupt_cb = fc->interrupt_cb;
}
esas2r_build_flash_req(a,
rq,
fc->func,
cksum,
fc->flsh_addr,
sgc->length);
esas2r_rq_free_sg_lists(rq, a);
/*
* remember the length we asked for. we have to keep track of
* the current amount done so we know how much to compare when
* doing the verification phase.
*/
fc->curr_len = fc->sgc.length;
if (sgc->cur_offset) {
/* setup the S/G context to build the S/G table */
esas2r_sgc_init(sgc, a, rq, &rq->vrq->flash.data.sge[0]);
if (!esas2r_build_sg_list(a, rq, sgc)) {
rq->req_stat = RS_BUSY;
return;
}
} else {
fc->sgc.length = 0;
}
/* update the flsh_addr to the next one to write to */
fc->flsh_addr += fc->curr_len;
}
/* determine the method to process the flash request */
static bool load_image(struct esas2r_adapter *a, struct esas2r_request *rq)
{
/*
* assume we have more to do. if we return with the status set to
* RS_PENDING, FM API tasks will continue.
*/
rq->req_stat = RS_PENDING;
if (test_bit(AF_DEGRADED_MODE, &a->flags))
/* not supported for now */;
else
build_flash_msg(a, rq);
return rq->req_stat == RS_PENDING;
}
/* boot image fixer uppers called before downloading the image. */
static void fix_bios(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
{
struct esas2r_component_header *ch = &fi->cmp_hdr[CH_IT_BIOS];
struct esas2r_pc_image *pi;
struct esas2r_boot_header *bh;
pi = (struct esas2r_pc_image *)((u8 *)fi + ch->image_offset);
bh =
(struct esas2r_boot_header *)((u8 *)pi +
le16_to_cpu(pi->header_offset));
bh->device_id = cpu_to_le16(a->pcid->device);
/* Recalculate the checksum in the PNP header if there */
if (pi->pnp_offset) {
u8 *pnp_header_bytes =
((u8 *)pi + le16_to_cpu(pi->pnp_offset));
/* Identifier - dword that starts at byte 10 */
*((u32 *)&pnp_header_bytes[10]) =
cpu_to_le32(MAKEDWORD(a->pcid->subsystem_vendor,
a->pcid->subsystem_device));
/* Checksum - byte 9 */
pnp_header_bytes[9] -= esas2r_calc_byte_cksum(pnp_header_bytes,
32, 0);
}
/* Recalculate the checksum needed by the PC */
pi->checksum = pi->checksum -
esas2r_calc_byte_cksum((u8 *)pi, ch->length, 0);
}
static void fix_efi(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
{
struct esas2r_component_header *ch = &fi->cmp_hdr[CH_IT_EFI];
u32 len = ch->length;
u32 offset = ch->image_offset;
struct esas2r_efi_image *ei;
struct esas2r_boot_header *bh;
while (len) {
u32 thislen;
ei = (struct esas2r_efi_image *)((u8 *)fi + offset);
bh = (struct esas2r_boot_header *)((u8 *)ei +
le16_to_cpu(
ei->header_offset));
bh->device_id = cpu_to_le16(a->pcid->device);
thislen = (u32)le16_to_cpu(bh->image_length) * 512;
if (thislen > len)
break;
len -= thislen;
offset += thislen;
}
}
/* Complete a FM API request with the specified status. */
static bool complete_fmapi_req(struct esas2r_adapter *a,
struct esas2r_request *rq, u8 fi_stat)
{
struct esas2r_flash_context *fc =
(struct esas2r_flash_context *)rq->interrupt_cx;
struct esas2r_flash_img *fi = fc->fi;
fi->status = fi_stat;
fi->driver_error = rq->req_stat;
rq->interrupt_cb = NULL;
rq->req_stat = RS_SUCCESS;
if (fi_stat != FI_STAT_IMG_VER)
memset(fc->scratch, 0, FM_BUF_SZ);
esas2r_enable_heartbeat(a);
clear_bit(AF_FLASH_LOCK, &a->flags);
return false;
}
/* Process each phase of the flash download process. */
static void fw_download_proc(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_flash_context *fc =
(struct esas2r_flash_context *)rq->interrupt_cx;
struct esas2r_flash_img *fi = fc->fi;
struct esas2r_component_header *ch;
u32 len;
u8 *p, *q;
/* If the previous operation failed, just return. */
if (rq->req_stat != RS_SUCCESS)
goto error;
/*
* If an upload just completed and the compare length is non-zero,
* then we just read back part of the image we just wrote. verify the
* section and continue reading until the entire image is verified.
*/
if (fc->func == VDA_FLASH_READ
&& fc->cmp_len) {
ch = &fi->cmp_hdr[fc->comp_typ];
p = fc->scratch;
q = (u8 *)fi /* start of the whole gob */
+ ch->image_offset /* start of the current image */
+ ch->length /* end of the current image */
- fc->cmp_len; /* where we are now */
/*
* NOTE - curr_len is the exact count of bytes for the read
* even when the end is read and its not a full buffer
*/
for (len = fc->curr_len; len; len--)
if (*p++ != *q++)
goto error;
fc->cmp_len -= fc->curr_len; /* # left to compare */
/* Update fc and determine the length for the next upload */
if (fc->cmp_len > FM_BUF_SZ)
fc->sgc.length = FM_BUF_SZ;
else
fc->sgc.length = fc->cmp_len;
fc->sgc.cur_offset = fc->sgc_offset +
((u8 *)fc->scratch - (u8 *)fi);
}
/*
* This code uses a 'while' statement since the next component may
* have a length = zero. This can happen since some components are
* not required. At the end of this 'while' we set up the length
* for the next request and therefore sgc.length can be = 0.
*/
while (fc->sgc.length == 0) {
ch = &fi->cmp_hdr[fc->comp_typ];
switch (fc->task) {
case FMTSK_ERASE_BOOT:
/* the BIOS image is written next */
ch = &fi->cmp_hdr[CH_IT_BIOS];
if (ch->length == 0)
goto no_bios;
fc->task = FMTSK_WRTBIOS;
fc->func = VDA_FLASH_BEGINW;
fc->comp_typ = CH_IT_BIOS;
fc->flsh_addr = FLS_OFFSET_BOOT;
fc->sgc.length = ch->length;
fc->sgc.cur_offset = fc->sgc_offset +
ch->image_offset;
break;
case FMTSK_WRTBIOS:
/*
* The BIOS image has been written - read it and
* verify it
*/
fc->task = FMTSK_READBIOS;
fc->func = VDA_FLASH_READ;
fc->flsh_addr = FLS_OFFSET_BOOT;
fc->cmp_len = ch->length;
fc->sgc.length = FM_BUF_SZ;
fc->sgc.cur_offset = fc->sgc_offset
+ ((u8 *)fc->scratch -
(u8 *)fi);
break;
case FMTSK_READBIOS:
no_bios:
/*
* Mark the component header status for the image
* completed
*/
ch->status = CH_STAT_SUCCESS;
/* The MAC image is written next */
ch = &fi->cmp_hdr[CH_IT_MAC];
if (ch->length == 0)
goto no_mac;
fc->task = FMTSK_WRTMAC;
fc->func = VDA_FLASH_BEGINW;
fc->comp_typ = CH_IT_MAC;
fc->flsh_addr = FLS_OFFSET_BOOT
+ fi->cmp_hdr[CH_IT_BIOS].length;
fc->sgc.length = ch->length;
fc->sgc.cur_offset = fc->sgc_offset +
ch->image_offset;
break;
case FMTSK_WRTMAC:
/* The MAC image has been written - read and verify */
fc->task = FMTSK_READMAC;
fc->func = VDA_FLASH_READ;
fc->flsh_addr -= ch->length;
fc->cmp_len = ch->length;
fc->sgc.length = FM_BUF_SZ;
fc->sgc.cur_offset = fc->sgc_offset
+ ((u8 *)fc->scratch -
(u8 *)fi);
break;
case FMTSK_READMAC:
no_mac:
/*
* Mark the component header status for the image
* completed
*/
ch->status = CH_STAT_SUCCESS;
/* The EFI image is written next */
ch = &fi->cmp_hdr[CH_IT_EFI];
if (ch->length == 0)
goto no_efi;
fc->task = FMTSK_WRTEFI;
fc->func = VDA_FLASH_BEGINW;
fc->comp_typ = CH_IT_EFI;
fc->flsh_addr = FLS_OFFSET_BOOT
+ fi->cmp_hdr[CH_IT_BIOS].length
+ fi->cmp_hdr[CH_IT_MAC].length;
fc->sgc.length = ch->length;
fc->sgc.cur_offset = fc->sgc_offset +
ch->image_offset;
break;
case FMTSK_WRTEFI:
/* The EFI image has been written - read and verify */
fc->task = FMTSK_READEFI;
fc->func = VDA_FLASH_READ;
fc->flsh_addr -= ch->length;
fc->cmp_len = ch->length;
fc->sgc.length = FM_BUF_SZ;
fc->sgc.cur_offset = fc->sgc_offset
+ ((u8 *)fc->scratch -
(u8 *)fi);
break;
case FMTSK_READEFI:
no_efi:
/*
* Mark the component header status for the image
* completed
*/
ch->status = CH_STAT_SUCCESS;
/* The CFG image is written next */
ch = &fi->cmp_hdr[CH_IT_CFG];
if (ch->length == 0)
goto no_cfg;
fc->task = FMTSK_WRTCFG;
fc->func = VDA_FLASH_BEGINW;
fc->comp_typ = CH_IT_CFG;
fc->flsh_addr = FLS_OFFSET_CPYR - ch->length;
fc->sgc.length = ch->length;
fc->sgc.cur_offset = fc->sgc_offset +
ch->image_offset;
break;
case FMTSK_WRTCFG:
/* The CFG image has been written - read and verify */
fc->task = FMTSK_READCFG;
fc->func = VDA_FLASH_READ;
fc->flsh_addr = FLS_OFFSET_CPYR - ch->length;
fc->cmp_len = ch->length;
fc->sgc.length = FM_BUF_SZ;
fc->sgc.cur_offset = fc->sgc_offset
+ ((u8 *)fc->scratch -
(u8 *)fi);
break;
case FMTSK_READCFG:
no_cfg:
/*
* Mark the component header status for the image
* completed
*/
ch->status = CH_STAT_SUCCESS;
/*
* The download is complete. If in degraded mode,
* attempt a chip reset.
*/
if (test_bit(AF_DEGRADED_MODE, &a->flags))
esas2r_local_reset_adapter(a);
a->flash_ver = fi->cmp_hdr[CH_IT_BIOS].version;
esas2r_print_flash_rev(a);
/* Update the type of boot image on the card */
memcpy(a->image_type, fi->rel_version,
sizeof(fi->rel_version));
complete_fmapi_req(a, rq, FI_STAT_SUCCESS);
return;
}
/* If verifying, don't try reading more than what's there */
if (fc->func == VDA_FLASH_READ
&& fc->sgc.length > fc->cmp_len)
fc->sgc.length = fc->cmp_len;
}
/* Build the request to perform the next action */
if (!load_image(a, rq)) {
error:
if (fc->comp_typ < fi->num_comps) {
ch = &fi->cmp_hdr[fc->comp_typ];
ch->status = CH_STAT_FAILED;
}
complete_fmapi_req(a, rq, FI_STAT_FAILED);
}
}
/* Determine the flash image adaptyp for this adapter */
static u8 get_fi_adap_type(struct esas2r_adapter *a)
{
u8 type;
/* use the device ID to get the correct adap_typ for this HBA */
switch (a->pcid->device) {
case ATTO_DID_INTEL_IOP348:
type = FI_AT_SUN_LAKE;
break;
case ATTO_DID_MV_88RC9580:
case ATTO_DID_MV_88RC9580TS:
case ATTO_DID_MV_88RC9580TSE:
case ATTO_DID_MV_88RC9580TL:
type = FI_AT_MV_9580;
break;
default:
type = FI_AT_UNKNWN;
break;
}
return type;
}
/* Size of config + copyright + flash_ver images, 0 for failure. */
static u32 chk_cfg(u8 *cfg, u32 length, u32 *flash_ver)
{
u16 *pw = (u16 *)cfg - 1;
u32 sz = 0;
u32 len = length;
if (len == 0)
len = FM_BUF_SZ;
if (flash_ver)
*flash_ver = 0;
while (true) {
u16 type;
u16 size;
type = le16_to_cpu(*pw--);
size = le16_to_cpu(*pw--);
if (type != FBT_CPYR
&& type != FBT_SETUP
&& type != FBT_FLASH_VER)
break;
if (type == FBT_FLASH_VER
&& flash_ver)
*flash_ver = le32_to_cpu(*(u32 *)(pw - 1));
sz += size + (2 * sizeof(u16));
pw -= size / sizeof(u16);
if (sz > len - (2 * sizeof(u16)))
break;
}
/* See if we are comparing the size to the specified length */
if (length && sz != length)
return 0;
return sz;
}
/* Verify that the boot image is valid */
static u8 chk_boot(u8 *boot_img, u32 length)
{
struct esas2r_boot_image *bi = (struct esas2r_boot_image *)boot_img;
u16 hdroffset = le16_to_cpu(bi->header_offset);
struct esas2r_boot_header *bh;
if (bi->signature != le16_to_cpu(0xaa55)
|| (long)hdroffset >
(long)(65536L - sizeof(struct esas2r_boot_header))
|| (hdroffset & 3)
|| (hdroffset < sizeof(struct esas2r_boot_image))
|| ((u32)hdroffset + sizeof(struct esas2r_boot_header) > length))
return 0xff;
bh = (struct esas2r_boot_header *)((char *)bi + hdroffset);
if (bh->signature[0] != 'P'
|| bh->signature[1] != 'C'
|| bh->signature[2] != 'I'
|| bh->signature[3] != 'R'
|| le16_to_cpu(bh->struct_length) <
(u16)sizeof(struct esas2r_boot_header)
|| bh->class_code[2] != 0x01
|| bh->class_code[1] != 0x04
|| bh->class_code[0] != 0x00
|| (bh->code_type != CODE_TYPE_PC
&& bh->code_type != CODE_TYPE_OPEN
&& bh->code_type != CODE_TYPE_EFI))
return 0xff;
return bh->code_type;
}
/* The sum of all the WORDS of the image */
static u16 calc_fi_checksum(struct esas2r_flash_context *fc)
{
struct esas2r_flash_img *fi = fc->fi;
u16 cksum;
u32 len;
u16 *pw;
for (len = (fi->length - fc->fi_hdr_len) / 2,
pw = (u16 *)((u8 *)fi + fc->fi_hdr_len),
cksum = 0;
len;
len--, pw++)
cksum = cksum + le16_to_cpu(*pw);
return cksum;
}
/*
* Verify the flash image structure. The following verifications will
* be performed:
* 1) verify the fi_version is correct
* 2) verify the checksum of the entire image.
* 3) validate the adap_typ, action and length fields.
* 4) validate each component header. check the img_type and
* length fields
* 5) validate each component image. validate signatures and
* local checksums
*/
static bool verify_fi(struct esas2r_adapter *a,
struct esas2r_flash_context *fc)
{
struct esas2r_flash_img *fi = fc->fi;
u8 type;
bool imgerr;
u16 i;
u32 len;
struct esas2r_component_header *ch;
/* Verify the length - length must even since we do a word checksum */
len = fi->length;
if ((len & 1)
|| len < fc->fi_hdr_len) {
fi->status = FI_STAT_LENGTH;
return false;
}
/* Get adapter type and verify type in flash image */
type = get_fi_adap_type(a);
if ((type == FI_AT_UNKNWN) || (fi->adap_typ != type)) {
fi->status = FI_STAT_ADAPTYP;
return false;
}
/*
* Loop through each component and verify the img_type and length
* fields. Keep a running count of the sizes sooze we can verify total
* size to additive size.
*/
imgerr = false;
for (i = 0, len = 0, ch = fi->cmp_hdr;
i < fi->num_comps;
i++, ch++) {
bool cmperr = false;
/*
* Verify that the component header has the same index as the
* image type. The headers must be ordered correctly
*/
if (i != ch->img_type) {
imgerr = true;
ch->status = CH_STAT_INVALID;
continue;
}
switch (ch->img_type) {
case CH_IT_BIOS:
type = CODE_TYPE_PC;
break;
case CH_IT_MAC:
type = CODE_TYPE_OPEN;
break;
case CH_IT_EFI:
type = CODE_TYPE_EFI;
break;
}
switch (ch->img_type) {
case CH_IT_FW:
case CH_IT_NVR:
break;
case CH_IT_BIOS:
case CH_IT_MAC:
case CH_IT_EFI:
if (ch->length & 0x1ff)
cmperr = true;
/* Test if component image is present */
if (ch->length == 0)
break;
/* Image is present - verify the image */
if (chk_boot((u8 *)fi + ch->image_offset, ch->length)
!= type)
cmperr = true;
break;
case CH_IT_CFG:
/* Test if component image is present */
if (ch->length == 0) {
cmperr = true;
break;
}
/* Image is present - verify the image */
if (!chk_cfg((u8 *)fi + ch->image_offset + ch->length,
ch->length, NULL))
cmperr = true;
break;
default:
fi->status = FI_STAT_UNKNOWN;
return false;
}
if (cmperr) {
imgerr = true;
ch->status = CH_STAT_INVALID;
} else {
ch->status = CH_STAT_PENDING;
len += ch->length;
}
}
if (imgerr) {
fi->status = FI_STAT_MISSING;
return false;
}
/* Compare fi->length to the sum of ch->length fields */
if (len != fi->length - fc->fi_hdr_len) {
fi->status = FI_STAT_LENGTH;
return false;
}
/* Compute the checksum - it should come out zero */
if (fi->checksum != calc_fi_checksum(fc)) {
fi->status = FI_STAT_CHKSUM;
return false;
}
return true;
}
/* Fill in the FS IOCTL response data from a completed request. */
static void esas2r_complete_fs_ioctl(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct esas2r_ioctl_fs *fs =
(struct esas2r_ioctl_fs *)rq->interrupt_cx;
if (rq->vrq->flash.sub_func == VDA_FLASH_COMMIT)
esas2r_enable_heartbeat(a);
fs->driver_error = rq->req_stat;
if (fs->driver_error == RS_SUCCESS)
fs->status = ATTO_STS_SUCCESS;
else
fs->status = ATTO_STS_FAILED;
}
/* Prepare an FS IOCTL request to be sent to the firmware. */
bool esas2r_process_fs_ioctl(struct esas2r_adapter *a,
struct esas2r_ioctl_fs *fs,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc)
{
u8 cmdcnt = (u8)ARRAY_SIZE(cmd_to_fls_func);
struct esas2r_ioctlfs_command *fsc = &fs->command;
u8 func = 0;
u32 datalen;
fs->status = ATTO_STS_FAILED;
fs->driver_error = RS_PENDING;
if (fs->version > ESAS2R_FS_VER) {
fs->status = ATTO_STS_INV_VERSION;
return false;
}
if (fsc->command >= cmdcnt) {
fs->status = ATTO_STS_INV_FUNC;
return false;
}
func = cmd_to_fls_func[fsc->command];
if (func == 0xFF) {
fs->status = ATTO_STS_INV_FUNC;
return false;
}
if (fsc->command != ESAS2R_FS_CMD_CANCEL) {
if ((a->pcid->device != ATTO_DID_MV_88RC9580
|| fs->adap_type != ESAS2R_FS_AT_ESASRAID2)
&& (a->pcid->device != ATTO_DID_MV_88RC9580TS
|| fs->adap_type != ESAS2R_FS_AT_TSSASRAID2)
&& (a->pcid->device != ATTO_DID_MV_88RC9580TSE
|| fs->adap_type != ESAS2R_FS_AT_TSSASRAID2E)
&& (a->pcid->device != ATTO_DID_MV_88RC9580TL
|| fs->adap_type != ESAS2R_FS_AT_TLSASHBA)) {
fs->status = ATTO_STS_INV_ADAPTER;
return false;
}
if (fs->driver_ver > ESAS2R_FS_DRVR_VER) {
fs->status = ATTO_STS_INV_DRVR_VER;
return false;
}
}
if (test_bit(AF_DEGRADED_MODE, &a->flags)) {
fs->status = ATTO_STS_DEGRADED;
return false;
}
rq->interrupt_cb = esas2r_complete_fs_ioctl;
rq->interrupt_cx = fs;
datalen = le32_to_cpu(fsc->length);
esas2r_build_flash_req(a,
rq,
func,
fsc->checksum,
le32_to_cpu(fsc->flash_addr),
datalen);
if (func == VDA_FLASH_WRITE
|| func == VDA_FLASH_READ) {
if (datalen == 0) {
fs->status = ATTO_STS_INV_FUNC;
return false;
}
esas2r_sgc_init(sgc, a, rq, rq->vrq->flash.data.sge);
sgc->length = datalen;
if (!esas2r_build_sg_list(a, rq, sgc)) {
fs->status = ATTO_STS_OUT_OF_RSRC;
return false;
}
}
if (func == VDA_FLASH_COMMIT)
esas2r_disable_heartbeat(a);
esas2r_start_request(a, rq);
return true;
}
static bool esas2r_flash_access(struct esas2r_adapter *a, u32 function)
{
u32 starttime;
u32 timeout;
u32 intstat;
u32 doorbell;
/* Disable chip interrupts awhile */
if (function == DRBL_FLASH_REQ)
esas2r_disable_chip_interrupts(a);
/* Issue the request to the firmware */
esas2r_write_register_dword(a, MU_DOORBELL_IN, function);
/* Now wait for the firmware to process it */
starttime = jiffies_to_msecs(jiffies);
if (test_bit(AF_CHPRST_PENDING, &a->flags) ||
test_bit(AF_DISC_PENDING, &a->flags))
timeout = 40000;
else
timeout = 5000;
while (true) {
intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
if (intstat & MU_INTSTAT_DRBL) {
/* Got a doorbell interrupt. Check for the function */
doorbell =
esas2r_read_register_dword(a, MU_DOORBELL_OUT);
esas2r_write_register_dword(a, MU_DOORBELL_OUT,
doorbell);
if (doorbell & function)
break;
}
schedule_timeout_interruptible(msecs_to_jiffies(100));
if ((jiffies_to_msecs(jiffies) - starttime) > timeout) {
/*
* Iimeout. If we were requesting flash access,
* indicate we are done so the firmware knows we gave
* up. If this was a REQ, we also need to re-enable
* chip interrupts.
*/
if (function == DRBL_FLASH_REQ) {
esas2r_hdebug("flash access timeout");
esas2r_write_register_dword(a, MU_DOORBELL_IN,
DRBL_FLASH_DONE);
esas2r_enable_chip_interrupts(a);
} else {
esas2r_hdebug("flash release timeout");
}
return false;
}
}
/* if we're done, re-enable chip interrupts */
if (function == DRBL_FLASH_DONE)
esas2r_enable_chip_interrupts(a);
return true;
}
#define WINDOW_SIZE ((signed int)MW_DATA_WINDOW_SIZE)
bool esas2r_read_flash_block(struct esas2r_adapter *a,
void *to,
u32 from,
u32 size)
{
u8 *end = (u8 *)to;
/* Try to acquire access to the flash */
if (!esas2r_flash_access(a, DRBL_FLASH_REQ))
return false;
while (size) {
u32 len;
u32 offset;
u32 iatvr;
if (test_bit(AF2_SERIAL_FLASH, &a->flags2))
iatvr = MW_DATA_ADDR_SER_FLASH + (from & -WINDOW_SIZE);
else
iatvr = MW_DATA_ADDR_PAR_FLASH + (from & -WINDOW_SIZE);
esas2r_map_data_window(a, iatvr);
offset = from & (WINDOW_SIZE - 1);
len = size;
if (len > WINDOW_SIZE - offset)
len = WINDOW_SIZE - offset;
from += len;
size -= len;
while (len--) {
*end++ = esas2r_read_data_byte(a, offset);
offset++;
}
}
/* Release flash access */
esas2r_flash_access(a, DRBL_FLASH_DONE);
return true;
}
bool esas2r_read_flash_rev(struct esas2r_adapter *a)
{
u8 bytes[256];
u16 *pw;
u16 *pwstart;
u16 type;
u16 size;
u32 sz;
sz = sizeof(bytes);
pw = (u16 *)(bytes + sz);
pwstart = (u16 *)bytes + 2;
if (!esas2r_read_flash_block(a, bytes, FLS_OFFSET_CPYR - sz, sz))
goto invalid_rev;
while (pw >= pwstart) {
pw--;
type = le16_to_cpu(*pw);
pw--;
size = le16_to_cpu(*pw);
pw -= size / 2;
if (type == FBT_CPYR
|| type == FBT_SETUP
|| pw < pwstart)
continue;
if (type == FBT_FLASH_VER)
a->flash_ver = le32_to_cpu(*(u32 *)pw);
break;
}
invalid_rev:
return esas2r_print_flash_rev(a);
}
bool esas2r_print_flash_rev(struct esas2r_adapter *a)
{
u16 year = LOWORD(a->flash_ver);
u8 day = LOBYTE(HIWORD(a->flash_ver));
u8 month = HIBYTE(HIWORD(a->flash_ver));
if (day == 0
|| month == 0
|| day > 31
|| month > 12
|| year < 2006
|| year > 9999) {
strcpy(a->flash_rev, "not found");
a->flash_ver = 0;
return false;
}
sprintf(a->flash_rev, "%02d/%02d/%04d", month, day, year);
esas2r_hdebug("flash version: %s", a->flash_rev);
return true;
}
/*
* Find the type of boot image type that is currently in the flash.
* The chip only has a 64 KB PCI-e expansion ROM
* size so only one image can be flashed at a time.
*/
bool esas2r_read_image_type(struct esas2r_adapter *a)
{
u8 bytes[256];
struct esas2r_boot_image *bi;
struct esas2r_boot_header *bh;
u32 sz;
u32 len;
u32 offset;
/* Start at the base of the boot images and look for a valid image */
sz = sizeof(bytes);
len = FLS_LENGTH_BOOT;
offset = 0;
while (true) {
if (!esas2r_read_flash_block(a, bytes, FLS_OFFSET_BOOT +
offset,
sz))
goto invalid_rev;
bi = (struct esas2r_boot_image *)bytes;
bh = (struct esas2r_boot_header *)((u8 *)bi +
le16_to_cpu(
bi->header_offset));
if (bi->signature != cpu_to_le16(0xAA55))
goto invalid_rev;
if (bh->code_type == CODE_TYPE_PC) {
strcpy(a->image_type, "BIOS");
return true;
} else if (bh->code_type == CODE_TYPE_EFI) {
struct esas2r_efi_image *ei;
/*
* So we have an EFI image. There are several types
* so see which architecture we have.
*/
ei = (struct esas2r_efi_image *)bytes;
switch (le16_to_cpu(ei->machine_type)) {
case EFI_MACHINE_IA32:
strcpy(a->image_type, "EFI 32-bit");
return true;
case EFI_MACHINE_IA64:
strcpy(a->image_type, "EFI itanium");
return true;
case EFI_MACHINE_X64:
strcpy(a->image_type, "EFI 64-bit");
return true;
case EFI_MACHINE_EBC:
strcpy(a->image_type, "EFI EBC");
return true;
default:
goto invalid_rev;
}
} else {
u32 thislen;
/* jump to the next image */
thislen = (u32)le16_to_cpu(bh->image_length) * 512;
if (thislen == 0
|| thislen + offset > len
|| bh->indicator == INDICATOR_LAST)
break;
offset += thislen;
}
}
invalid_rev:
strcpy(a->image_type, "no boot images");
return false;
}
/*
* Read and validate current NVRAM parameters by accessing
* physical NVRAM directly. if currently stored parameters are
* invalid, use the defaults.
*/
bool esas2r_nvram_read_direct(struct esas2r_adapter *a)
{
bool result;
if (down_interruptible(&a->nvram_semaphore))
return false;
if (!esas2r_read_flash_block(a, a->nvram, FLS_OFFSET_NVR,
sizeof(struct esas2r_sas_nvram))) {
esas2r_hdebug("NVRAM read failed, using defaults");
up(&a->nvram_semaphore);
return false;
}
result = esas2r_nvram_validate(a);
up(&a->nvram_semaphore);
return result;
}
/* Interrupt callback to process NVRAM completions. */
static void esas2r_nvram_callback(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct atto_vda_flash_req *vrq = &rq->vrq->flash;
if (rq->req_stat == RS_SUCCESS) {
/* last request was successful. see what to do now. */
switch (vrq->sub_func) {
case VDA_FLASH_BEGINW:
vrq->sub_func = VDA_FLASH_WRITE;
rq->req_stat = RS_PENDING;
break;
case VDA_FLASH_WRITE:
vrq->sub_func = VDA_FLASH_COMMIT;
rq->req_stat = RS_PENDING;
break;
case VDA_FLASH_READ:
esas2r_nvram_validate(a);
break;
case VDA_FLASH_COMMIT:
default:
break;
}
}
if (rq->req_stat != RS_PENDING) {
/* update the NVRAM state */
if (rq->req_stat == RS_SUCCESS)
set_bit(AF_NVR_VALID, &a->flags);
else
clear_bit(AF_NVR_VALID, &a->flags);
esas2r_enable_heartbeat(a);
up(&a->nvram_semaphore);
}
}
/*
* Write the contents of nvram to the adapter's physical NVRAM.
* The cached copy of the NVRAM is also updated.
*/
bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq,
struct esas2r_sas_nvram *nvram)
{
struct esas2r_sas_nvram *n = nvram;
u8 sas_address_bytes[8];
u32 *sas_address_dwords = (u32 *)&sas_address_bytes[0];
struct atto_vda_flash_req *vrq = &rq->vrq->flash;
if (test_bit(AF_DEGRADED_MODE, &a->flags))
return false;
if (down_interruptible(&a->nvram_semaphore))
return false;
if (n == NULL)
n = a->nvram;
/* check the validity of the settings */
if (n->version > SASNVR_VERSION) {
up(&a->nvram_semaphore);
return false;
}
memcpy(&sas_address_bytes[0], n->sas_addr, 8);
if (sas_address_bytes[0] != 0x50
|| sas_address_bytes[1] != 0x01
|| sas_address_bytes[2] != 0x08
|| (sas_address_bytes[3] & 0xF0) != 0x60
|| ((sas_address_bytes[3] & 0x0F) | sas_address_dwords[1]) == 0) {
up(&a->nvram_semaphore);
return false;
}
if (n->spin_up_delay > SASNVR_SPINUP_MAX)
n->spin_up_delay = SASNVR_SPINUP_MAX;
n->version = SASNVR_VERSION;
n->checksum = n->checksum - esas2r_nvramcalc_cksum(n);
memcpy(a->nvram, n, sizeof(struct esas2r_sas_nvram));
/* write the NVRAM */
n = a->nvram;
esas2r_disable_heartbeat(a);
esas2r_build_flash_req(a,
rq,
VDA_FLASH_BEGINW,
esas2r_nvramcalc_xor_cksum(n),
FLS_OFFSET_NVR,
sizeof(struct esas2r_sas_nvram));
if (test_bit(AF_LEGACY_SGE_MODE, &a->flags)) {
vrq->data.sge[0].length =
cpu_to_le32(SGE_LAST |
sizeof(struct esas2r_sas_nvram));
vrq->data.sge[0].address = cpu_to_le64(
a->uncached_phys + (u64)((u8 *)n - a->uncached));
} else {
vrq->data.prde[0].ctl_len =
cpu_to_le32(sizeof(struct esas2r_sas_nvram));
vrq->data.prde[0].address = cpu_to_le64(
a->uncached_phys
+ (u64)((u8 *)n - a->uncached));
}
rq->interrupt_cb = esas2r_nvram_callback;
esas2r_start_request(a, rq);
return true;
}
/* Validate the cached NVRAM. if the NVRAM is invalid, load the defaults. */
bool esas2r_nvram_validate(struct esas2r_adapter *a)
{
struct esas2r_sas_nvram *n = a->nvram;
bool rslt = false;
if (n->signature[0] != 'E'
|| n->signature[1] != 'S'
|| n->signature[2] != 'A'
|| n->signature[3] != 'S') {
esas2r_hdebug("invalid NVRAM signature");
} else if (esas2r_nvramcalc_cksum(n)) {
esas2r_hdebug("invalid NVRAM checksum");
} else if (n->version > SASNVR_VERSION) {
esas2r_hdebug("invalid NVRAM version");
} else {
set_bit(AF_NVR_VALID, &a->flags);
rslt = true;
}
if (rslt == false) {
esas2r_hdebug("using defaults");
esas2r_nvram_set_defaults(a);
}
return rslt;
}
/*
* Set the cached NVRAM to defaults. note that this function sets the default
* NVRAM when it has been determined that the physical NVRAM is invalid.
* In this case, the SAS address is fabricated.
*/
void esas2r_nvram_set_defaults(struct esas2r_adapter *a)
{
struct esas2r_sas_nvram *n = a->nvram;
u32 time = jiffies_to_msecs(jiffies);
clear_bit(AF_NVR_VALID, &a->flags);
*n = default_sas_nvram;
n->sas_addr[3] |= 0x0F;
n->sas_addr[4] = HIBYTE(LOWORD(time));
n->sas_addr[5] = LOBYTE(LOWORD(time));
n->sas_addr[6] = a->pcid->bus->number;
n->sas_addr[7] = a->pcid->devfn;
}
void esas2r_nvram_get_defaults(struct esas2r_adapter *a,
struct esas2r_sas_nvram *nvram)
{
u8 sas_addr[8];
/*
* in case we are copying the defaults into the adapter, copy the SAS
* address out first.
*/
memcpy(&sas_addr[0], a->nvram->sas_addr, 8);
*nvram = default_sas_nvram;
memcpy(&nvram->sas_addr[0], &sas_addr[0], 8);
}
bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
struct esas2r_request *rq, struct esas2r_sg_context *sgc)
{
struct esas2r_flash_context *fc = &a->flash_context;
u8 j;
struct esas2r_component_header *ch;
if (test_and_set_bit(AF_FLASH_LOCK, &a->flags)) {
/* flag was already set */
fi->status = FI_STAT_BUSY;
return false;
}
memcpy(&fc->sgc, sgc, sizeof(struct esas2r_sg_context));
sgc = &fc->sgc;
fc->fi = fi;
fc->sgc_offset = sgc->cur_offset;
rq->req_stat = RS_SUCCESS;
rq->interrupt_cx = fc;
switch (fi->fi_version) {
case FI_VERSION_1:
fc->scratch = ((struct esas2r_flash_img *)fi)->scratch_buf;
fc->num_comps = FI_NUM_COMPS_V1;
fc->fi_hdr_len = sizeof(struct esas2r_flash_img);
break;
default:
return complete_fmapi_req(a, rq, FI_STAT_IMG_VER);
}
if (test_bit(AF_DEGRADED_MODE, &a->flags))
return complete_fmapi_req(a, rq, FI_STAT_DEGRADED);
switch (fi->action) {
case FI_ACT_DOWN: /* Download the components */
/* Verify the format of the flash image */
if (!verify_fi(a, fc))
return complete_fmapi_req(a, rq, fi->status);
/* Adjust the BIOS fields that are dependent on the HBA */
ch = &fi->cmp_hdr[CH_IT_BIOS];
if (ch->length)
fix_bios(a, fi);
/* Adjust the EFI fields that are dependent on the HBA */
ch = &fi->cmp_hdr[CH_IT_EFI];
if (ch->length)
fix_efi(a, fi);
/*
* Since the image was just modified, compute the checksum on
* the modified image. First update the CRC for the composite
* expansion ROM image.
*/
fi->checksum = calc_fi_checksum(fc);
/* Disable the heartbeat */
esas2r_disable_heartbeat(a);
/* Now start up the download sequence */
fc->task = FMTSK_ERASE_BOOT;
fc->func = VDA_FLASH_BEGINW;
fc->comp_typ = CH_IT_CFG;
fc->flsh_addr = FLS_OFFSET_BOOT;
fc->sgc.length = FLS_LENGTH_BOOT;
fc->sgc.cur_offset = NULL;
/* Setup the callback address */
fc->interrupt_cb = fw_download_proc;
break;
case FI_ACT_UPSZ: /* Get upload sizes */
fi->adap_typ = get_fi_adap_type(a);
fi->flags = 0;
fi->num_comps = fc->num_comps;
fi->length = fc->fi_hdr_len;
/* Report the type of boot image in the rel_version string */
memcpy(fi->rel_version, a->image_type,
sizeof(fi->rel_version));
/* Build the component headers */
for (j = 0, ch = fi->cmp_hdr;
j < fi->num_comps;
j++, ch++) {
ch->img_type = j;
ch->status = CH_STAT_PENDING;
ch->length = 0;
ch->version = 0xffffffff;
ch->image_offset = 0;
ch->pad[0] = 0;
ch->pad[1] = 0;
}
if (a->flash_ver != 0) {
fi->cmp_hdr[CH_IT_BIOS].version =
fi->cmp_hdr[CH_IT_MAC].version =
fi->cmp_hdr[CH_IT_EFI].version =
fi->cmp_hdr[CH_IT_CFG].version
= a->flash_ver;
fi->cmp_hdr[CH_IT_BIOS].status =
fi->cmp_hdr[CH_IT_MAC].status =
fi->cmp_hdr[CH_IT_EFI].status =
fi->cmp_hdr[CH_IT_CFG].status =
CH_STAT_SUCCESS;
return complete_fmapi_req(a, rq, FI_STAT_SUCCESS);
}
fallthrough;
case FI_ACT_UP: /* Upload the components */
default:
return complete_fmapi_req(a, rq, FI_STAT_INVALID);
}
/*
* If we make it here, fc has been setup to do the first task. Call
* load_image to format the request, start it, and get out. The
* interrupt code will call the callback when the first message is
* complete.
*/
if (!load_image(a, rq))
return complete_fmapi_req(a, rq, FI_STAT_FAILED);
esas2r_start_request(a, rq);
return true;
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_flash.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_targdb.c
* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "esas2r.h"
void esas2r_targ_db_initialize(struct esas2r_adapter *a)
{
struct esas2r_target *t;
for (t = a->targetdb; t < a->targetdb_end; t++) {
memset(t, 0, sizeof(struct esas2r_target));
t->target_state = TS_NOT_PRESENT;
t->buffered_target_state = TS_NOT_PRESENT;
t->new_target_state = TS_INVALID;
}
}
void esas2r_targ_db_remove_all(struct esas2r_adapter *a, bool notify)
{
struct esas2r_target *t;
unsigned long flags;
for (t = a->targetdb; t < a->targetdb_end; t++) {
if (t->target_state != TS_PRESENT)
continue;
spin_lock_irqsave(&a->mem_lock, flags);
esas2r_targ_db_remove(a, t);
spin_unlock_irqrestore(&a->mem_lock, flags);
if (notify) {
esas2r_trace("remove id:%d", esas2r_targ_get_id(t,
a));
esas2r_target_state_changed(a, esas2r_targ_get_id(t,
a),
TS_NOT_PRESENT);
}
}
}
void esas2r_targ_db_report_changes(struct esas2r_adapter *a)
{
struct esas2r_target *t;
unsigned long flags;
esas2r_trace_enter();
if (test_bit(AF_DISC_PENDING, &a->flags)) {
esas2r_trace_exit();
return;
}
for (t = a->targetdb; t < a->targetdb_end; t++) {
u8 state = TS_INVALID;
spin_lock_irqsave(&a->mem_lock, flags);
if (t->buffered_target_state != t->target_state)
state = t->buffered_target_state = t->target_state;
spin_unlock_irqrestore(&a->mem_lock, flags);
if (state != TS_INVALID) {
esas2r_trace("targ_db_report_changes:%d",
esas2r_targ_get_id(
t,
a));
esas2r_trace("state:%d", state);
esas2r_target_state_changed(a,
esas2r_targ_get_id(t,
a),
state);
}
}
esas2r_trace_exit();
}
struct esas2r_target *esas2r_targ_db_add_raid(struct esas2r_adapter *a,
struct esas2r_disc_context *
dc)
{
struct esas2r_target *t;
esas2r_trace_enter();
if (dc->curr_virt_id >= ESAS2R_MAX_TARGETS) {
esas2r_bugon();
esas2r_trace_exit();
return NULL;
}
t = a->targetdb + dc->curr_virt_id;
if (t->target_state == TS_PRESENT) {
esas2r_trace_exit();
return NULL;
}
esas2r_hdebug("add RAID %s, T:%d", dc->raid_grp_name,
esas2r_targ_get_id(
t,
a));
if (dc->interleave == 0
|| dc->block_size == 0) {
/* these are invalid values, don't create the target entry. */
esas2r_hdebug("invalid RAID group dimensions");
esas2r_trace_exit();
return NULL;
}
t->block_size = dc->block_size;
t->inter_byte = dc->interleave;
t->inter_block = dc->interleave / dc->block_size;
t->virt_targ_id = dc->curr_virt_id;
t->phys_targ_id = ESAS2R_TARG_ID_INV;
t->flags &= ~TF_PASS_THRU;
t->flags |= TF_USED;
t->identifier_len = 0;
t->target_state = TS_PRESENT;
return t;
}
struct esas2r_target *esas2r_targ_db_add_pthru(struct esas2r_adapter *a,
struct esas2r_disc_context *dc,
u8 *ident,
u8 ident_len)
{
struct esas2r_target *t;
esas2r_trace_enter();
if (dc->curr_virt_id >= ESAS2R_MAX_TARGETS) {
esas2r_bugon();
esas2r_trace_exit();
return NULL;
}
/* see if we found this device before. */
t = esas2r_targ_db_find_by_ident(a, ident, ident_len);
if (t == NULL) {
t = a->targetdb + dc->curr_virt_id;
if (ident_len > sizeof(t->identifier)
|| t->target_state == TS_PRESENT) {
esas2r_trace_exit();
return NULL;
}
}
esas2r_hdebug("add PT; T:%d, V:%d, P:%d", esas2r_targ_get_id(t, a),
dc->curr_virt_id,
dc->curr_phys_id);
t->block_size = 0;
t->inter_byte = 0;
t->inter_block = 0;
t->virt_targ_id = dc->curr_virt_id;
t->phys_targ_id = dc->curr_phys_id;
t->identifier_len = ident_len;
memcpy(t->identifier, ident, ident_len);
t->flags |= TF_PASS_THRU | TF_USED;
t->target_state = TS_PRESENT;
return t;
}
void esas2r_targ_db_remove(struct esas2r_adapter *a, struct esas2r_target *t)
{
esas2r_trace_enter();
t->target_state = TS_NOT_PRESENT;
esas2r_trace("remove id:%d", esas2r_targ_get_id(t, a));
esas2r_trace_exit();
}
struct esas2r_target *esas2r_targ_db_find_by_sas_addr(struct esas2r_adapter *a,
u64 *sas_addr)
{
struct esas2r_target *t;
for (t = a->targetdb; t < a->targetdb_end; t++)
if (t->sas_addr == *sas_addr)
return t;
return NULL;
}
struct esas2r_target *esas2r_targ_db_find_by_ident(struct esas2r_adapter *a,
void *identifier,
u8 ident_len)
{
struct esas2r_target *t;
for (t = a->targetdb; t < a->targetdb_end; t++) {
if (ident_len == t->identifier_len
&& memcmp(&t->identifier[0], identifier,
ident_len) == 0)
return t;
}
return NULL;
}
u16 esas2r_targ_db_find_next_present(struct esas2r_adapter *a, u16 target_id)
{
u16 id = target_id + 1;
while (id < ESAS2R_MAX_TARGETS) {
struct esas2r_target *t = a->targetdb + id;
if (t->target_state == TS_PRESENT)
break;
id++;
}
return id;
}
struct esas2r_target *esas2r_targ_db_find_by_virt_id(struct esas2r_adapter *a,
u16 virt_id)
{
struct esas2r_target *t;
for (t = a->targetdb; t < a->targetdb_end; t++) {
if (t->target_state != TS_PRESENT)
continue;
if (t->virt_targ_id == virt_id)
return t;
}
return NULL;
}
u16 esas2r_targ_db_get_tgt_cnt(struct esas2r_adapter *a)
{
u16 devcnt = 0;
struct esas2r_target *t;
unsigned long flags;
spin_lock_irqsave(&a->mem_lock, flags);
for (t = a->targetdb; t < a->targetdb_end; t++)
if (t->target_state == TS_PRESENT)
devcnt++;
spin_unlock_irqrestore(&a->mem_lock, flags);
return devcnt;
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_targdb.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_log.c
* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "esas2r.h"
/*
* this module within the driver is tasked with providing logging functionality.
* the event_log_level module parameter controls the level of messages that are
* written to the system log. the default level of messages that are written
* are critical and warning messages. if other types of messages are desired,
* one simply needs to load the module with the correct value for the
* event_log_level module parameter. for example:
*
* insmod <module> event_log_level=1
*
* will load the module and only critical events will be written by this module
* to the system log. if critical, warning, and information-level messages are
* desired, the correct value for the event_log_level module parameter
* would be as follows:
*
* insmod <module> event_log_level=3
*/
#define EVENT_LOG_BUFF_SIZE 1024
static long event_log_level = ESAS2R_LOG_DFLT;
module_param(event_log_level, long, S_IRUGO | S_IRUSR);
MODULE_PARM_DESC(event_log_level,
"Specifies the level of events to report to the system log. Critical and warning level events are logged by default.");
/* A shared buffer to use for formatting messages. */
static char event_buffer[EVENT_LOG_BUFF_SIZE];
/* A lock to protect the shared buffer used for formatting messages. */
static DEFINE_SPINLOCK(event_buffer_lock);
/*
* translates an esas2r-defined logging event level to a kernel logging level.
*
* @param [in] level the esas2r-defined logging event level to translate
*
* @return the corresponding kernel logging level.
*/
static const char *translate_esas2r_event_level_to_kernel(const long level)
{
switch (level) {
case ESAS2R_LOG_CRIT:
return KERN_CRIT;
case ESAS2R_LOG_WARN:
return KERN_WARNING;
case ESAS2R_LOG_INFO:
return KERN_INFO;
case ESAS2R_LOG_DEBG:
case ESAS2R_LOG_TRCE:
default:
return KERN_DEBUG;
}
}
#pragma GCC diagnostic push
#ifndef __clang__
#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
#endif
/*
* the master logging function. this function will format the message as
* outlined by the formatting string, the input device information and the
* substitution arguments and output the resulting string to the system log.
*
* @param [in] level the event log level of the message
* @param [in] dev the device information
* @param [in] format the formatting string for the message
* @param [in] args the substition arguments to the formatting string
*
* @return 0 on success, or -1 if an error occurred.
*/
static int esas2r_log_master(const long level,
const struct device *dev,
const char *format,
va_list args)
{
if (level <= event_log_level) {
unsigned long flags = 0;
int retval = 0;
char *buffer = event_buffer;
size_t buflen = EVENT_LOG_BUFF_SIZE;
const char *fmt_nodev = "%s%s: ";
const char *fmt_dev = "%s%s [%s, %s, %s]";
const char *slevel =
translate_esas2r_event_level_to_kernel(level);
spin_lock_irqsave(&event_buffer_lock, flags);
memset(buffer, 0, buflen);
/*
* format the level onto the beginning of the string and do
* some pointer arithmetic to move the pointer to the point
* where the actual message can be inserted.
*/
if (dev == NULL) {
snprintf(buffer, buflen, fmt_nodev, slevel,
ESAS2R_DRVR_NAME);
} else {
snprintf(buffer, buflen, fmt_dev, slevel,
ESAS2R_DRVR_NAME,
(dev->driver ? dev->driver->name : "unknown"),
(dev->bus ? dev->bus->name : "unknown"),
dev_name(dev));
}
buffer += strlen(event_buffer);
buflen -= strlen(event_buffer);
retval = vsnprintf(buffer, buflen, format, args);
if (retval < 0) {
spin_unlock_irqrestore(&event_buffer_lock, flags);
return -1;
}
/*
* Put a line break at the end of the formatted string so that
* we don't wind up with run-on messages.
*/
printk("%s\n", event_buffer);
spin_unlock_irqrestore(&event_buffer_lock, flags);
}
return 0;
}
#pragma GCC diagnostic pop
/*
* formats and logs a message to the system log.
*
* @param [in] level the event level of the message
* @param [in] format the formating string for the message
* @param [in] ... the substitution arguments to the formatting string
*
* @return 0 on success, or -1 if an error occurred.
*/
int esas2r_log(const long level, const char *format, ...)
{
int retval = 0;
va_list args;
va_start(args, format);
retval = esas2r_log_master(level, NULL, format, args);
va_end(args);
return retval;
}
/*
* formats and logs a message to the system log. this message will include
* device information.
*
* @param [in] level the event level of the message
* @param [in] dev the device information
* @param [in] format the formatting string for the message
* @param [in] ... the substitution arguments to the formatting string
*
* @return 0 on success, or -1 if an error occurred.
*/
int esas2r_log_dev(const long level,
const struct device *dev,
const char *format,
...)
{
int retval = 0;
va_list args;
va_start(args, format);
retval = esas2r_log_master(level, dev, format, args);
va_end(args);
return retval;
}
/*
* formats and logs a message to the system log. this message will include
* device information.
*
* @param [in] level the event level of the message
* @param [in] buf
* @param [in] len
*
* @return 0 on success, or -1 if an error occurred.
*/
int esas2r_log_hexdump(const long level,
const void *buf,
size_t len)
{
if (level <= event_log_level) {
print_hex_dump(translate_esas2r_event_level_to_kernel(level),
"", DUMP_PREFIX_OFFSET, 16, 1, buf,
len, true);
}
return 1;
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_log.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_main.c
* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "esas2r.h"
MODULE_DESCRIPTION(ESAS2R_DRVR_NAME ": " ESAS2R_LONGNAME " driver");
MODULE_AUTHOR("ATTO Technology, Inc.");
MODULE_LICENSE("GPL");
MODULE_VERSION(ESAS2R_VERSION_STR);
/* global definitions */
static int found_adapters;
struct esas2r_adapter *esas2r_adapters[MAX_ADAPTERS];
#define ESAS2R_VDA_EVENT_PORT1 54414
#define ESAS2R_VDA_EVENT_PORT2 54415
#define ESAS2R_VDA_EVENT_SOCK_COUNT 2
static struct esas2r_adapter *esas2r_adapter_from_kobj(struct kobject *kobj)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct Scsi_Host *host = class_to_shost(dev);
return (struct esas2r_adapter *)host->hostdata;
}
static ssize_t read_fw(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
return esas2r_read_fw(a, buf, off, count);
}
static ssize_t write_fw(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
return esas2r_write_fw(a, buf, off, count);
}
static ssize_t read_fs(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
return esas2r_read_fs(a, buf, off, count);
}
static ssize_t write_fs(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
int length = min(sizeof(struct esas2r_ioctl_fs), count);
int result = 0;
result = esas2r_write_fs(a, buf, off, count);
if (result < 0)
result = 0;
return length;
}
static ssize_t read_vda(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
return esas2r_read_vda(a, buf, off, count);
}
static ssize_t write_vda(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
return esas2r_write_vda(a, buf, off, count);
}
static ssize_t read_live_nvram(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
int length = min_t(size_t, sizeof(struct esas2r_sas_nvram), PAGE_SIZE);
memcpy(buf, a->nvram, length);
return length;
}
static ssize_t write_live_nvram(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
struct esas2r_request *rq;
int result = -EFAULT;
rq = esas2r_alloc_request(a);
if (rq == NULL)
return -ENOMEM;
if (esas2r_write_params(a, rq, (struct esas2r_sas_nvram *)buf))
result = count;
esas2r_free_request(a, rq);
return result;
}
static ssize_t read_default_nvram(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
esas2r_nvram_get_defaults(a, (struct esas2r_sas_nvram *)buf);
return sizeof(struct esas2r_sas_nvram);
}
static ssize_t read_hw(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
int length = min_t(size_t, sizeof(struct atto_ioctl), PAGE_SIZE);
if (!a->local_atto_ioctl)
return -ENOMEM;
if (handle_hba_ioctl(a, a->local_atto_ioctl) != IOCTL_SUCCESS)
return -ENOMEM;
memcpy(buf, a->local_atto_ioctl, length);
return length;
}
static ssize_t write_hw(struct file *file, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct esas2r_adapter *a = esas2r_adapter_from_kobj(kobj);
int length = min(sizeof(struct atto_ioctl), count);
if (!a->local_atto_ioctl) {
a->local_atto_ioctl = kmalloc(sizeof(struct atto_ioctl),
GFP_KERNEL);
if (a->local_atto_ioctl == NULL) {
esas2r_log(ESAS2R_LOG_WARN,
"write_hw kzalloc failed for %zu bytes",
sizeof(struct atto_ioctl));
return -ENOMEM;
}
}
memset(a->local_atto_ioctl, 0, sizeof(struct atto_ioctl));
memcpy(a->local_atto_ioctl, buf, length);
return length;
}
#define ESAS2R_RW_BIN_ATTR(_name) \
struct bin_attribute bin_attr_ ## _name = { \
.attr = \
{ .name = __stringify(_name), .mode = S_IRUSR | S_IWUSR }, \
.size = 0, \
.read = read_ ## _name, \
.write = write_ ## _name }
ESAS2R_RW_BIN_ATTR(fw);
ESAS2R_RW_BIN_ATTR(fs);
ESAS2R_RW_BIN_ATTR(vda);
ESAS2R_RW_BIN_ATTR(hw);
ESAS2R_RW_BIN_ATTR(live_nvram);
struct bin_attribute bin_attr_default_nvram = {
.attr = { .name = "default_nvram", .mode = S_IRUGO },
.size = 0,
.read = read_default_nvram,
.write = NULL
};
static const struct scsi_host_template driver_template = {
.module = THIS_MODULE,
.show_info = esas2r_show_info,
.name = ESAS2R_LONGNAME,
.info = esas2r_info,
.ioctl = esas2r_ioctl,
.queuecommand = esas2r_queuecommand,
.eh_abort_handler = esas2r_eh_abort,
.eh_device_reset_handler = esas2r_device_reset,
.eh_bus_reset_handler = esas2r_bus_reset,
.eh_host_reset_handler = esas2r_host_reset,
.eh_target_reset_handler = esas2r_target_reset,
.can_queue = 128,
.this_id = -1,
.sg_tablesize = SG_CHUNK_SIZE,
.cmd_per_lun =
ESAS2R_DEFAULT_CMD_PER_LUN,
.proc_name = ESAS2R_DRVR_NAME,
.change_queue_depth = scsi_change_queue_depth,
.max_sectors = 0xFFFF,
};
int sgl_page_size = 512;
module_param(sgl_page_size, int, 0);
MODULE_PARM_DESC(sgl_page_size,
"Scatter/gather list (SGL) page size in number of S/G "
"entries. If your application is doing a lot of very large "
"transfers, you may want to increase the SGL page size. "
"Default 512.");
int num_sg_lists = 1024;
module_param(num_sg_lists, int, 0);
MODULE_PARM_DESC(num_sg_lists,
"Number of scatter/gather lists. Default 1024.");
int sg_tablesize = SG_CHUNK_SIZE;
module_param(sg_tablesize, int, 0);
MODULE_PARM_DESC(sg_tablesize,
"Maximum number of entries in a scatter/gather table.");
int num_requests = 256;
module_param(num_requests, int, 0);
MODULE_PARM_DESC(num_requests,
"Number of requests. Default 256.");
int num_ae_requests = 4;
module_param(num_ae_requests, int, 0);
MODULE_PARM_DESC(num_ae_requests,
"Number of VDA asynchronous event requests. Default 4.");
int cmd_per_lun = ESAS2R_DEFAULT_CMD_PER_LUN;
module_param(cmd_per_lun, int, 0);
MODULE_PARM_DESC(cmd_per_lun,
"Maximum number of commands per LUN. Default "
DEFINED_NUM_TO_STR(ESAS2R_DEFAULT_CMD_PER_LUN) ".");
int can_queue = 128;
module_param(can_queue, int, 0);
MODULE_PARM_DESC(can_queue,
"Maximum number of commands per adapter. Default 128.");
int esas2r_max_sectors = 0xFFFF;
module_param(esas2r_max_sectors, int, 0);
MODULE_PARM_DESC(esas2r_max_sectors,
"Maximum number of disk sectors in a single data transfer. "
"Default 65535 (largest possible setting).");
int interrupt_mode = 1;
module_param(interrupt_mode, int, 0);
MODULE_PARM_DESC(interrupt_mode,
"Defines the interrupt mode to use. 0 for legacy"
", 1 for MSI. Default is MSI (1).");
static const struct pci_device_id
esas2r_pci_table[] = {
{ ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x0049,
0,
0, 0 },
{ ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004A,
0,
0, 0 },
{ ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004B,
0,
0, 0 },
{ ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004C,
0,
0, 0 },
{ ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004D,
0,
0, 0 },
{ ATTO_VENDOR_ID, 0x0049, ATTO_VENDOR_ID, 0x004E,
0,
0, 0 },
{ 0, 0, 0, 0,
0,
0, 0 }
};
MODULE_DEVICE_TABLE(pci, esas2r_pci_table);
static int
esas2r_probe(struct pci_dev *pcid, const struct pci_device_id *id);
static void
esas2r_remove(struct pci_dev *pcid);
static struct pci_driver
esas2r_pci_driver = {
.name = ESAS2R_DRVR_NAME,
.id_table = esas2r_pci_table,
.probe = esas2r_probe,
.remove = esas2r_remove,
.driver.pm = &esas2r_pm_ops,
};
static int esas2r_probe(struct pci_dev *pcid,
const struct pci_device_id *id)
{
struct Scsi_Host *host = NULL;
struct esas2r_adapter *a;
int err;
size_t host_alloc_size = sizeof(struct esas2r_adapter)
+ ((num_requests) +
1) * sizeof(struct esas2r_request);
esas2r_log_dev(ESAS2R_LOG_DEBG, &(pcid->dev),
"esas2r_probe() 0x%02x 0x%02x 0x%02x 0x%02x",
pcid->vendor,
pcid->device,
pcid->subsystem_vendor,
pcid->subsystem_device);
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"before pci_enable_device() "
"enable_cnt: %d",
pcid->enable_cnt.counter);
err = pci_enable_device(pcid);
if (err != 0) {
esas2r_log_dev(ESAS2R_LOG_CRIT, &(pcid->dev),
"pci_enable_device() FAIL (%d)",
err);
return -ENODEV;
}
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"pci_enable_device() OK");
esas2r_log_dev(ESAS2R_LOG_INFO, &(pcid->dev),
"after pci_enable_device() enable_cnt: %d",
pcid->enable_cnt.counter);
host = scsi_host_alloc(&driver_template, host_alloc_size);
if (host == NULL) {
esas2r_log(ESAS2R_LOG_CRIT, "scsi_host_alloc() FAIL");
return -ENODEV;
}
memset(host->hostdata, 0, host_alloc_size);
a = (struct esas2r_adapter *)host->hostdata;
esas2r_log(ESAS2R_LOG_INFO, "scsi_host_alloc() OK host: %p", host);
/* override max LUN and max target id */
host->max_id = ESAS2R_MAX_ID + 1;
host->max_lun = 255;
/* we can handle 16-byte CDbs */
host->max_cmd_len = 16;
host->can_queue = can_queue;
host->cmd_per_lun = cmd_per_lun;
host->this_id = host->max_id + 1;
host->max_channel = 0;
host->unique_id = found_adapters;
host->sg_tablesize = sg_tablesize;
host->max_sectors = esas2r_max_sectors;
/* set to bus master for BIOses that don't do it for us */
esas2r_log(ESAS2R_LOG_INFO, "pci_set_master() called");
pci_set_master(pcid);
if (!esas2r_init_adapter(host, pcid, found_adapters)) {
esas2r_log(ESAS2R_LOG_CRIT,
"unable to initialize device at PCI bus %x:%x",
pcid->bus->number,
pcid->devfn);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_host_put() called");
scsi_host_put(host);
return 0;
}
esas2r_log(ESAS2R_LOG_INFO, "pci_set_drvdata(%p, %p) called", pcid,
host->hostdata);
pci_set_drvdata(pcid, host);
esas2r_log(ESAS2R_LOG_INFO, "scsi_add_host() called");
err = scsi_add_host(host, &pcid->dev);
if (err) {
esas2r_log(ESAS2R_LOG_CRIT, "scsi_add_host returned %d", err);
esas2r_log_dev(ESAS2R_LOG_CRIT, &(host->shost_gendev),
"scsi_add_host() FAIL");
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_host_put() called");
scsi_host_put(host);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"pci_set_drvdata(%p, NULL) called",
pcid);
pci_set_drvdata(pcid, NULL);
return -ENODEV;
}
esas2r_fw_event_on(a);
esas2r_log_dev(ESAS2R_LOG_INFO, &(host->shost_gendev),
"scsi_scan_host() called");
scsi_scan_host(host);
/* Add sysfs binary files */
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_fw))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: fw");
else
a->sysfs_fw_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_fs))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: fs");
else
a->sysfs_fs_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_vda))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: vda");
else
a->sysfs_vda_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_hw))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: hw");
else
a->sysfs_hw_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj, &bin_attr_live_nvram))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: live_nvram");
else
a->sysfs_live_nvram_created = 1;
if (sysfs_create_bin_file(&host->shost_dev.kobj,
&bin_attr_default_nvram))
esas2r_log_dev(ESAS2R_LOG_WARN, &(host->shost_gendev),
"Failed to create sysfs binary file: default_nvram");
else
a->sysfs_default_nvram_created = 1;
found_adapters++;
return 0;
}
static void esas2r_remove(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct esas2r_adapter *a = (struct esas2r_adapter *)host->hostdata;
esas2r_log_dev(ESAS2R_LOG_INFO, &(pdev->dev),
"esas2r_remove(%p) called; "
"host:%p", pdev,
host);
esas2r_kill_adapter(a->index);
found_adapters--;
}
static int __init esas2r_init(void)
{
int i;
esas2r_log(ESAS2R_LOG_INFO, "%s called", __func__);
/* verify valid parameters */
if (can_queue < 1) {
esas2r_log(ESAS2R_LOG_WARN,
"warning: can_queue must be at least 1, value "
"forced.");
can_queue = 1;
} else if (can_queue > 2048) {
esas2r_log(ESAS2R_LOG_WARN,
"warning: can_queue must be no larger than 2048, "
"value forced.");
can_queue = 2048;
}
if (cmd_per_lun < 1) {
esas2r_log(ESAS2R_LOG_WARN,
"warning: cmd_per_lun must be at least 1, value "
"forced.");
cmd_per_lun = 1;
} else if (cmd_per_lun > 2048) {
esas2r_log(ESAS2R_LOG_WARN,
"warning: cmd_per_lun must be no larger than "
"2048, value forced.");
cmd_per_lun = 2048;
}
if (sg_tablesize < 32) {
esas2r_log(ESAS2R_LOG_WARN,
"warning: sg_tablesize must be at least 32, "
"value forced.");
sg_tablesize = 32;
}
if (esas2r_max_sectors < 1) {
esas2r_log(ESAS2R_LOG_WARN,
"warning: esas2r_max_sectors must be at least "
"1, value forced.");
esas2r_max_sectors = 1;
} else if (esas2r_max_sectors > 0xffff) {
esas2r_log(ESAS2R_LOG_WARN,
"warning: esas2r_max_sectors must be no larger "
"than 0xffff, value forced.");
esas2r_max_sectors = 0xffff;
}
sgl_page_size &= ~(ESAS2R_SGL_ALIGN - 1);
if (sgl_page_size < SGL_PG_SZ_MIN)
sgl_page_size = SGL_PG_SZ_MIN;
else if (sgl_page_size > SGL_PG_SZ_MAX)
sgl_page_size = SGL_PG_SZ_MAX;
if (num_sg_lists < NUM_SGL_MIN)
num_sg_lists = NUM_SGL_MIN;
else if (num_sg_lists > NUM_SGL_MAX)
num_sg_lists = NUM_SGL_MAX;
if (num_requests < NUM_REQ_MIN)
num_requests = NUM_REQ_MIN;
else if (num_requests > NUM_REQ_MAX)
num_requests = NUM_REQ_MAX;
if (num_ae_requests < NUM_AE_MIN)
num_ae_requests = NUM_AE_MIN;
else if (num_ae_requests > NUM_AE_MAX)
num_ae_requests = NUM_AE_MAX;
/* set up other globals */
for (i = 0; i < MAX_ADAPTERS; i++)
esas2r_adapters[i] = NULL;
return pci_register_driver(&esas2r_pci_driver);
}
/* Handle ioctl calls to "/proc/scsi/esas2r/ATTOnode" */
static const struct file_operations esas2r_proc_fops = {
.compat_ioctl = compat_ptr_ioctl,
.unlocked_ioctl = esas2r_proc_ioctl,
};
static const struct proc_ops esas2r_proc_ops = {
.proc_lseek = default_llseek,
.proc_ioctl = esas2r_proc_ioctl,
#ifdef CONFIG_COMPAT
.proc_compat_ioctl = compat_ptr_ioctl,
#endif
};
static struct Scsi_Host *esas2r_proc_host;
static int esas2r_proc_major;
long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
{
return esas2r_ioctl_handler(esas2r_proc_host->hostdata,
cmd, (void __user *)arg);
}
static void __exit esas2r_exit(void)
{
esas2r_log(ESAS2R_LOG_INFO, "%s called", __func__);
if (esas2r_proc_major > 0) {
struct proc_dir_entry *proc_dir;
esas2r_log(ESAS2R_LOG_INFO, "unregister proc");
proc_dir = scsi_template_proc_dir(esas2r_proc_host->hostt);
if (proc_dir)
remove_proc_entry(ATTONODE_NAME, proc_dir);
unregister_chrdev(esas2r_proc_major, ESAS2R_DRVR_NAME);
esas2r_proc_major = 0;
}
esas2r_log(ESAS2R_LOG_INFO, "pci_unregister_driver() called");
pci_unregister_driver(&esas2r_pci_driver);
}
int esas2r_show_info(struct seq_file *m, struct Scsi_Host *sh)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)sh->hostdata;
struct esas2r_target *t;
int dev_count = 0;
esas2r_log(ESAS2R_LOG_DEBG, "esas2r_show_info (%p,%d)", m, sh->host_no);
seq_printf(m, ESAS2R_LONGNAME "\n"
"Driver version: "ESAS2R_VERSION_STR "\n"
"Flash version: %s\n"
"Firmware version: %s\n"
"Copyright "ESAS2R_COPYRIGHT_YEARS "\n"
"http://www.attotech.com\n"
"\n",
a->flash_rev,
a->fw_rev[0] ? a->fw_rev : "(none)");
seq_printf(m, "Adapter information:\n"
"--------------------\n"
"Model: %s\n"
"SAS address: %02X%02X%02X%02X:%02X%02X%02X%02X\n",
esas2r_get_model_name(a),
a->nvram->sas_addr[0],
a->nvram->sas_addr[1],
a->nvram->sas_addr[2],
a->nvram->sas_addr[3],
a->nvram->sas_addr[4],
a->nvram->sas_addr[5],
a->nvram->sas_addr[6],
a->nvram->sas_addr[7]);
seq_puts(m, "\n"
"Discovered devices:\n"
"\n"
" # Target ID\n"
"---------------\n");
for (t = a->targetdb; t < a->targetdb_end; t++)
if (t->buffered_target_state == TS_PRESENT) {
seq_printf(m, " %3d %3d\n",
++dev_count,
(u16)(uintptr_t)(t - a->targetdb));
}
if (dev_count == 0)
seq_puts(m, "none\n");
seq_putc(m, '\n');
return 0;
}
const char *esas2r_info(struct Scsi_Host *sh)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)sh->hostdata;
static char esas2r_info_str[512];
esas2r_log_dev(ESAS2R_LOG_INFO, &(sh->shost_gendev),
"esas2r_info() called");
/*
* if we haven't done so already, register as a char driver
* and stick a node under "/proc/scsi/esas2r/ATTOnode"
*/
if (esas2r_proc_major <= 0) {
esas2r_proc_host = sh;
esas2r_proc_major = register_chrdev(0, ESAS2R_DRVR_NAME,
&esas2r_proc_fops);
esas2r_log_dev(ESAS2R_LOG_DEBG, &(sh->shost_gendev),
"register_chrdev (major %d)",
esas2r_proc_major);
if (esas2r_proc_major > 0) {
struct proc_dir_entry *proc_dir;
struct proc_dir_entry *pde = NULL;
proc_dir = scsi_template_proc_dir(sh->hostt);
if (proc_dir)
pde = proc_create(ATTONODE_NAME, 0, proc_dir,
&esas2r_proc_ops);
if (!pde) {
esas2r_log_dev(ESAS2R_LOG_WARN,
&(sh->shost_gendev),
"failed to create_proc_entry");
esas2r_proc_major = -1;
}
}
}
sprintf(esas2r_info_str,
ESAS2R_LONGNAME " (bus 0x%02X, device 0x%02X, IRQ 0x%02X)"
" driver version: "ESAS2R_VERSION_STR " firmware version: "
"%s\n",
a->pcid->bus->number, a->pcid->devfn, a->pcid->irq,
a->fw_rev[0] ? a->fw_rev : "(none)");
return esas2r_info_str;
}
/* Callback for building a request scatter/gather list */
static u32 get_physaddr_from_sgc(struct esas2r_sg_context *sgc, u64 *addr)
{
u32 len;
if (likely(sgc->cur_offset == sgc->exp_offset)) {
/*
* the normal case: caller used all bytes from previous call, so
* expected offset is the same as the current offset.
*/
if (sgc->sgel_count < sgc->num_sgel) {
/* retrieve next segment, except for first time */
if (sgc->exp_offset > (u8 *)0) {
/* advance current segment */
sgc->cur_sgel = sg_next(sgc->cur_sgel);
++(sgc->sgel_count);
}
len = sg_dma_len(sgc->cur_sgel);
(*addr) = sg_dma_address(sgc->cur_sgel);
/* save the total # bytes returned to caller so far */
sgc->exp_offset += len;
} else {
len = 0;
}
} else if (sgc->cur_offset < sgc->exp_offset) {
/*
* caller did not use all bytes from previous call. need to
* compute the address based on current segment.
*/
len = sg_dma_len(sgc->cur_sgel);
(*addr) = sg_dma_address(sgc->cur_sgel);
sgc->exp_offset -= len;
/* calculate PA based on prev segment address and offsets */
*addr = *addr +
(sgc->cur_offset - sgc->exp_offset);
sgc->exp_offset += len;
/* re-calculate length based on offset */
len = lower_32_bits(
sgc->exp_offset - sgc->cur_offset);
} else { /* if ( sgc->cur_offset > sgc->exp_offset ) */
/*
* we don't expect the caller to skip ahead.
* cur_offset will never exceed the len we return
*/
len = 0;
}
return len;
}
int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
{
struct esas2r_adapter *a =
(struct esas2r_adapter *)cmd->device->host->hostdata;
struct esas2r_request *rq;
struct esas2r_sg_context sgc;
unsigned bufflen;
/* Assume success, if it fails we will fix the result later. */
cmd->result = DID_OK << 16;
if (unlikely(test_bit(AF_DEGRADED_MODE, &a->flags))) {
cmd->result = DID_NO_CONNECT << 16;
scsi_done(cmd);
return 0;
}
rq = esas2r_alloc_request(a);
if (unlikely(rq == NULL)) {
esas2r_debug("esas2r_alloc_request failed");
return SCSI_MLQUEUE_HOST_BUSY;
}
rq->cmd = cmd;
bufflen = scsi_bufflen(cmd);
if (likely(bufflen != 0)) {
if (cmd->sc_data_direction == DMA_TO_DEVICE)
rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_WRD);
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_RDD);
}
memcpy(rq->vrq->scsi.cdb, cmd->cmnd, cmd->cmd_len);
rq->vrq->scsi.length = cpu_to_le32(bufflen);
rq->target_id = cmd->device->id;
rq->vrq->scsi.flags |= cpu_to_le32(cmd->device->lun);
rq->sense_buf = cmd->sense_buffer;
rq->sense_len = SCSI_SENSE_BUFFERSIZE;
esas2r_sgc_init(&sgc, a, rq, NULL);
sgc.length = bufflen;
sgc.cur_offset = NULL;
sgc.cur_sgel = scsi_sglist(cmd);
sgc.exp_offset = NULL;
sgc.num_sgel = scsi_dma_map(cmd);
sgc.sgel_count = 0;
if (unlikely(sgc.num_sgel < 0)) {
esas2r_free_request(a, rq);
return SCSI_MLQUEUE_HOST_BUSY;
}
sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_from_sgc;
if (unlikely(!esas2r_build_sg_list(a, rq, &sgc))) {
scsi_dma_unmap(cmd);
esas2r_free_request(a, rq);
return SCSI_MLQUEUE_HOST_BUSY;
}
esas2r_debug("start request %p to %d:%d\n", rq, (int)cmd->device->id,
(int)cmd->device->lun);
esas2r_start_request(a, rq);
return 0;
}
static void complete_task_management_request(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
(*rq->task_management_status_ptr) = rq->req_stat;
esas2r_free_request(a, rq);
}
/*
* Searches the specified queue for the specified queue for the command
* to abort.
*
* Return 0 on failure, 1 if command was not found, 2 if command was found
*/
static int esas2r_check_active_queue(struct esas2r_adapter *a,
struct esas2r_request **abort_request,
struct scsi_cmnd *cmd,
struct list_head *queue)
{
bool found = false;
struct esas2r_request *ar = *abort_request;
struct esas2r_request *rq;
struct list_head *element, *next;
list_for_each_safe(element, next, queue) {
rq = list_entry(element, struct esas2r_request, req_list);
if (rq->cmd == cmd) {
/* Found the request. See what to do with it. */
if (queue == &a->active_list) {
/*
* We are searching the active queue, which
* means that we need to send an abort request
* to the firmware.
*/
ar = esas2r_alloc_request(a);
if (ar == NULL) {
esas2r_log_dev(ESAS2R_LOG_WARN,
&(a->host->shost_gendev),
"unable to allocate an abort request for cmd %p",
cmd);
return 0; /* Failure */
}
/*
* Task management request must be formatted
* with a lock held.
*/
ar->sense_len = 0;
ar->vrq->scsi.length = 0;
ar->target_id = rq->target_id;
ar->vrq->scsi.flags |= cpu_to_le32(
(u8)le32_to_cpu(rq->vrq->scsi.flags));
memset(ar->vrq->scsi.cdb, 0,
sizeof(ar->vrq->scsi.cdb));
ar->vrq->scsi.flags |= cpu_to_le32(
FCP_CMND_TRM);
ar->vrq->scsi.u.abort_handle =
rq->vrq->scsi.handle;
} else {
/*
* The request is pending but not active on
* the firmware. Just free it now and we'll
* report the successful abort below.
*/
list_del_init(&rq->req_list);
esas2r_free_request(a, rq);
}
found = true;
break;
}
}
if (!found)
return 1; /* Not found */
return 2; /* found */
}
int esas2r_eh_abort(struct scsi_cmnd *cmd)
{
struct esas2r_adapter *a =
(struct esas2r_adapter *)cmd->device->host->hostdata;
struct esas2r_request *abort_request = NULL;
unsigned long flags;
struct list_head *queue;
int result;
esas2r_log(ESAS2R_LOG_INFO, "eh_abort (%p)", cmd);
if (test_bit(AF_DEGRADED_MODE, &a->flags)) {
cmd->result = DID_ABORT << 16;
scsi_set_resid(cmd, 0);
scsi_done(cmd);
return SUCCESS;
}
spin_lock_irqsave(&a->queue_lock, flags);
/*
* Run through the defer and active queues looking for the request
* to abort.
*/
queue = &a->defer_list;
check_active_queue:
result = esas2r_check_active_queue(a, &abort_request, cmd, queue);
if (!result) {
spin_unlock_irqrestore(&a->queue_lock, flags);
return FAILED;
} else if (result == 2 && (queue == &a->defer_list)) {
queue = &a->active_list;
goto check_active_queue;
}
spin_unlock_irqrestore(&a->queue_lock, flags);
if (abort_request) {
u8 task_management_status = RS_PENDING;
/*
* the request is already active, so we need to tell
* the firmware to abort it and wait for the response.
*/
abort_request->comp_cb = complete_task_management_request;
abort_request->task_management_status_ptr =
&task_management_status;
esas2r_start_request(a, abort_request);
if (atomic_read(&a->disable_cnt) == 0)
esas2r_do_deferred_processes(a);
while (task_management_status == RS_PENDING)
msleep(10);
/*
* Once we get here, the original request will have been
* completed by the firmware and the abort request will have
* been cleaned up. we're done!
*/
return SUCCESS;
}
/*
* If we get here, either we found the inactive request and
* freed it, or we didn't find it at all. Either way, success!
*/
cmd->result = DID_ABORT << 16;
scsi_set_resid(cmd, 0);
scsi_done(cmd);
return SUCCESS;
}
static int esas2r_host_bus_reset(struct scsi_cmnd *cmd, bool host_reset)
{
struct esas2r_adapter *a =
(struct esas2r_adapter *)cmd->device->host->hostdata;
if (test_bit(AF_DEGRADED_MODE, &a->flags))
return FAILED;
if (host_reset)
esas2r_reset_adapter(a);
else
esas2r_reset_bus(a);
/* above call sets the AF_OS_RESET flag. wait for it to clear. */
while (test_bit(AF_OS_RESET, &a->flags)) {
msleep(10);
if (test_bit(AF_DEGRADED_MODE, &a->flags))
return FAILED;
}
if (test_bit(AF_DEGRADED_MODE, &a->flags))
return FAILED;
return SUCCESS;
}
int esas2r_host_reset(struct scsi_cmnd *cmd)
{
esas2r_log(ESAS2R_LOG_INFO, "host_reset (%p)", cmd);
return esas2r_host_bus_reset(cmd, true);
}
int esas2r_bus_reset(struct scsi_cmnd *cmd)
{
esas2r_log(ESAS2R_LOG_INFO, "bus_reset (%p)", cmd);
return esas2r_host_bus_reset(cmd, false);
}
static int esas2r_dev_targ_reset(struct scsi_cmnd *cmd, bool target_reset)
{
struct esas2r_adapter *a =
(struct esas2r_adapter *)cmd->device->host->hostdata;
struct esas2r_request *rq;
u8 task_management_status = RS_PENDING;
bool completed;
if (test_bit(AF_DEGRADED_MODE, &a->flags))
return FAILED;
retry:
rq = esas2r_alloc_request(a);
if (rq == NULL) {
if (target_reset) {
esas2r_log(ESAS2R_LOG_CRIT,
"unable to allocate a request for a "
"target reset (%d)!",
cmd->device->id);
} else {
esas2r_log(ESAS2R_LOG_CRIT,
"unable to allocate a request for a "
"device reset (%d:%llu)!",
cmd->device->id,
cmd->device->lun);
}
return FAILED;
}
rq->target_id = cmd->device->id;
rq->vrq->scsi.flags |= cpu_to_le32(cmd->device->lun);
rq->req_stat = RS_PENDING;
rq->comp_cb = complete_task_management_request;
rq->task_management_status_ptr = &task_management_status;
if (target_reset) {
esas2r_debug("issuing target reset (%p) to id %d", rq,
cmd->device->id);
completed = esas2r_send_task_mgmt(a, rq, 0x20);
} else {
esas2r_debug("issuing device reset (%p) to id %d lun %d", rq,
cmd->device->id, cmd->device->lun);
completed = esas2r_send_task_mgmt(a, rq, 0x10);
}
if (completed) {
/* Task management cmd completed right away, need to free it. */
esas2r_free_request(a, rq);
} else {
/*
* Wait for firmware to complete the request. Completion
* callback will free it.
*/
while (task_management_status == RS_PENDING)
msleep(10);
}
if (test_bit(AF_DEGRADED_MODE, &a->flags))
return FAILED;
if (task_management_status == RS_BUSY) {
/*
* Busy, probably because we are flashing. Wait a bit and
* try again.
*/
msleep(100);
goto retry;
}
return SUCCESS;
}
int esas2r_device_reset(struct scsi_cmnd *cmd)
{
esas2r_log(ESAS2R_LOG_INFO, "device_reset (%p)", cmd);
return esas2r_dev_targ_reset(cmd, false);
}
int esas2r_target_reset(struct scsi_cmnd *cmd)
{
esas2r_log(ESAS2R_LOG_INFO, "target_reset (%p)", cmd);
return esas2r_dev_targ_reset(cmd, true);
}
void esas2r_log_request_failure(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
u8 reqstatus = rq->req_stat;
if (reqstatus == RS_SUCCESS)
return;
if (rq->vrq->scsi.function == VDA_FUNC_SCSI) {
if (reqstatus == RS_SCSI_ERROR) {
if (rq->func_rsp.scsi_rsp.sense_len >= 13) {
esas2r_log(ESAS2R_LOG_WARN,
"request failure - SCSI error %x ASC:%x ASCQ:%x CDB:%x",
rq->sense_buf[2], rq->sense_buf[12],
rq->sense_buf[13],
rq->vrq->scsi.cdb[0]);
} else {
esas2r_log(ESAS2R_LOG_WARN,
"request failure - SCSI error CDB:%x\n",
rq->vrq->scsi.cdb[0]);
}
} else if ((rq->vrq->scsi.cdb[0] != INQUIRY
&& rq->vrq->scsi.cdb[0] != REPORT_LUNS)
|| (reqstatus != RS_SEL
&& reqstatus != RS_SEL2)) {
if ((reqstatus == RS_UNDERRUN) &&
(rq->vrq->scsi.cdb[0] == INQUIRY)) {
/* Don't log inquiry underruns */
} else {
esas2r_log(ESAS2R_LOG_WARN,
"request failure - cdb:%x reqstatus:%d target:%d",
rq->vrq->scsi.cdb[0], reqstatus,
rq->target_id);
}
}
}
}
void esas2r_wait_request(struct esas2r_adapter *a, struct esas2r_request *rq)
{
u32 starttime;
u32 timeout;
starttime = jiffies_to_msecs(jiffies);
timeout = rq->timeout ? rq->timeout : 5000;
while (true) {
esas2r_polled_interrupt(a);
if (rq->req_stat != RS_STARTED)
break;
schedule_timeout_interruptible(msecs_to_jiffies(100));
if ((jiffies_to_msecs(jiffies) - starttime) > timeout) {
esas2r_hdebug("request TMO");
esas2r_bugon();
rq->req_stat = RS_TIMEOUT;
esas2r_local_reset_adapter(a);
return;
}
}
}
u32 esas2r_map_data_window(struct esas2r_adapter *a, u32 addr_lo)
{
u32 offset = addr_lo & (MW_DATA_WINDOW_SIZE - 1);
u32 base = addr_lo & -(signed int)MW_DATA_WINDOW_SIZE;
if (a->window_base != base) {
esas2r_write_register_dword(a, MVR_PCI_WIN1_REMAP,
base | MVRPW1R_ENABLE);
esas2r_flush_register_dword(a, MVR_PCI_WIN1_REMAP);
a->window_base = base;
}
return offset;
}
/* Read a block of data from chip memory */
bool esas2r_read_mem_block(struct esas2r_adapter *a,
void *to,
u32 from,
u32 size)
{
u8 *end = (u8 *)to;
while (size) {
u32 len;
u32 offset;
u32 iatvr;
iatvr = (from & -(signed int)MW_DATA_WINDOW_SIZE);
esas2r_map_data_window(a, iatvr);
offset = from & (MW_DATA_WINDOW_SIZE - 1);
len = size;
if (len > MW_DATA_WINDOW_SIZE - offset)
len = MW_DATA_WINDOW_SIZE - offset;
from += len;
size -= len;
while (len--) {
*end++ = esas2r_read_data_byte(a, offset);
offset++;
}
}
return true;
}
void esas2r_nuxi_mgt_data(u8 function, void *data)
{
struct atto_vda_grp_info *g;
struct atto_vda_devinfo *d;
struct atto_vdapart_info *p;
struct atto_vda_dh_info *h;
struct atto_vda_metrics_info *m;
struct atto_vda_schedule_info *s;
struct atto_vda_buzzer_info *b;
u8 i;
switch (function) {
case VDAMGT_BUZZER_INFO:
case VDAMGT_BUZZER_SET:
b = (struct atto_vda_buzzer_info *)data;
b->duration = le32_to_cpu(b->duration);
break;
case VDAMGT_SCHEDULE_INFO:
case VDAMGT_SCHEDULE_EVENT:
s = (struct atto_vda_schedule_info *)data;
s->id = le32_to_cpu(s->id);
break;
case VDAMGT_DEV_INFO:
case VDAMGT_DEV_CLEAN:
case VDAMGT_DEV_PT_INFO:
case VDAMGT_DEV_FEATURES:
case VDAMGT_DEV_PT_FEATURES:
case VDAMGT_DEV_OPERATION:
d = (struct atto_vda_devinfo *)data;
d->capacity = le64_to_cpu(d->capacity);
d->block_size = le32_to_cpu(d->block_size);
d->ses_dev_index = le16_to_cpu(d->ses_dev_index);
d->target_id = le16_to_cpu(d->target_id);
d->lun = le16_to_cpu(d->lun);
d->features = le16_to_cpu(d->features);
break;
case VDAMGT_GRP_INFO:
case VDAMGT_GRP_CREATE:
case VDAMGT_GRP_DELETE:
case VDAMGT_ADD_STORAGE:
case VDAMGT_MEMBER_ADD:
case VDAMGT_GRP_COMMIT:
case VDAMGT_GRP_REBUILD:
case VDAMGT_GRP_COMMIT_INIT:
case VDAMGT_QUICK_RAID:
case VDAMGT_GRP_FEATURES:
case VDAMGT_GRP_COMMIT_INIT_AUTOMAP:
case VDAMGT_QUICK_RAID_INIT_AUTOMAP:
case VDAMGT_SPARE_LIST:
case VDAMGT_SPARE_ADD:
case VDAMGT_SPARE_REMOVE:
case VDAMGT_LOCAL_SPARE_ADD:
case VDAMGT_GRP_OPERATION:
g = (struct atto_vda_grp_info *)data;
g->capacity = le64_to_cpu(g->capacity);
g->block_size = le32_to_cpu(g->block_size);
g->interleave = le32_to_cpu(g->interleave);
g->features = le16_to_cpu(g->features);
for (i = 0; i < 32; i++)
g->members[i] = le16_to_cpu(g->members[i]);
break;
case VDAMGT_PART_INFO:
case VDAMGT_PART_MAP:
case VDAMGT_PART_UNMAP:
case VDAMGT_PART_AUTOMAP:
case VDAMGT_PART_SPLIT:
case VDAMGT_PART_MERGE:
p = (struct atto_vdapart_info *)data;
p->part_size = le64_to_cpu(p->part_size);
p->start_lba = le32_to_cpu(p->start_lba);
p->block_size = le32_to_cpu(p->block_size);
p->target_id = le16_to_cpu(p->target_id);
break;
case VDAMGT_DEV_HEALTH_REQ:
h = (struct atto_vda_dh_info *)data;
h->med_defect_cnt = le32_to_cpu(h->med_defect_cnt);
h->info_exc_cnt = le32_to_cpu(h->info_exc_cnt);
break;
case VDAMGT_DEV_METRICS:
m = (struct atto_vda_metrics_info *)data;
for (i = 0; i < 32; i++)
m->dev_indexes[i] = le16_to_cpu(m->dev_indexes[i]);
break;
default:
break;
}
}
void esas2r_nuxi_cfg_data(u8 function, void *data)
{
struct atto_vda_cfg_init *ci;
switch (function) {
case VDA_CFG_INIT:
case VDA_CFG_GET_INIT:
case VDA_CFG_GET_INIT2:
ci = (struct atto_vda_cfg_init *)data;
ci->date_time.year = le16_to_cpu(ci->date_time.year);
ci->sgl_page_size = le32_to_cpu(ci->sgl_page_size);
ci->vda_version = le32_to_cpu(ci->vda_version);
ci->epoch_time = le32_to_cpu(ci->epoch_time);
ci->ioctl_tunnel = le32_to_cpu(ci->ioctl_tunnel);
ci->num_targets_backend = le32_to_cpu(ci->num_targets_backend);
break;
default:
break;
}
}
void esas2r_nuxi_ae_data(union atto_vda_ae *ae)
{
struct atto_vda_ae_raid *r = &ae->raid;
struct atto_vda_ae_lu *l = &ae->lu;
switch (ae->hdr.bytype) {
case VDAAE_HDR_TYPE_RAID:
r->dwflags = le32_to_cpu(r->dwflags);
break;
case VDAAE_HDR_TYPE_LU:
l->dwevent = le32_to_cpu(l->dwevent);
l->wphys_target_id = le16_to_cpu(l->wphys_target_id);
l->id.tgtlun.wtarget_id = le16_to_cpu(l->id.tgtlun.wtarget_id);
if (l->hdr.bylength >= offsetof(struct atto_vda_ae_lu, id)
+ sizeof(struct atto_vda_ae_lu_tgt_lun_raid)) {
l->id.tgtlun_raid.dwinterleave
= le32_to_cpu(l->id.tgtlun_raid.dwinterleave);
l->id.tgtlun_raid.dwblock_size
= le32_to_cpu(l->id.tgtlun_raid.dwblock_size);
}
break;
case VDAAE_HDR_TYPE_DISK:
default:
break;
}
}
void esas2r_free_request(struct esas2r_adapter *a, struct esas2r_request *rq)
{
unsigned long flags;
esas2r_rq_destroy_request(rq, a);
spin_lock_irqsave(&a->request_lock, flags);
list_add(&rq->comp_list, &a->avail_request);
spin_unlock_irqrestore(&a->request_lock, flags);
}
struct esas2r_request *esas2r_alloc_request(struct esas2r_adapter *a)
{
struct esas2r_request *rq;
unsigned long flags;
spin_lock_irqsave(&a->request_lock, flags);
if (unlikely(list_empty(&a->avail_request))) {
spin_unlock_irqrestore(&a->request_lock, flags);
return NULL;
}
rq = list_first_entry(&a->avail_request, struct esas2r_request,
comp_list);
list_del(&rq->comp_list);
spin_unlock_irqrestore(&a->request_lock, flags);
esas2r_rq_init_request(rq, a);
return rq;
}
void esas2r_complete_request_cb(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
esas2r_debug("completing request %p\n", rq);
scsi_dma_unmap(rq->cmd);
if (unlikely(rq->req_stat != RS_SUCCESS)) {
esas2r_debug("[%x STATUS %x:%x (%x)]", rq->target_id,
rq->req_stat,
rq->func_rsp.scsi_rsp.scsi_stat,
rq->cmd);
rq->cmd->result =
((esas2r_req_status_to_error(rq->req_stat) << 16)
| rq->func_rsp.scsi_rsp.scsi_stat);
if (rq->req_stat == RS_UNDERRUN)
scsi_set_resid(rq->cmd,
le32_to_cpu(rq->func_rsp.scsi_rsp.
residual_length));
else
scsi_set_resid(rq->cmd, 0);
}
scsi_done(rq->cmd);
esas2r_free_request(a, rq);
}
/* Run tasklet to handle stuff outside of interrupt context. */
void esas2r_adapter_tasklet(unsigned long context)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)context;
if (unlikely(test_bit(AF2_TIMER_TICK, &a->flags2))) {
clear_bit(AF2_TIMER_TICK, &a->flags2);
esas2r_timer_tick(a);
}
if (likely(test_bit(AF2_INT_PENDING, &a->flags2))) {
clear_bit(AF2_INT_PENDING, &a->flags2);
esas2r_adapter_interrupt(a);
}
if (esas2r_is_tasklet_pending(a))
esas2r_do_tasklet_tasks(a);
if (esas2r_is_tasklet_pending(a)
|| (test_bit(AF2_INT_PENDING, &a->flags2))
|| (test_bit(AF2_TIMER_TICK, &a->flags2))) {
clear_bit(AF_TASKLET_SCHEDULED, &a->flags);
esas2r_schedule_tasklet(a);
} else {
clear_bit(AF_TASKLET_SCHEDULED, &a->flags);
}
}
static void esas2r_timer_callback(struct timer_list *t);
void esas2r_kickoff_timer(struct esas2r_adapter *a)
{
timer_setup(&a->timer, esas2r_timer_callback, 0);
a->timer.expires = jiffies +
msecs_to_jiffies(100);
add_timer(&a->timer);
}
static void esas2r_timer_callback(struct timer_list *t)
{
struct esas2r_adapter *a = from_timer(a, t, timer);
set_bit(AF2_TIMER_TICK, &a->flags2);
esas2r_schedule_tasklet(a);
esas2r_kickoff_timer(a);
}
/*
* Firmware events need to be handled outside of interrupt context
* so we schedule a delayed_work to handle them.
*/
static void
esas2r_free_fw_event(struct esas2r_fw_event_work *fw_event)
{
unsigned long flags;
struct esas2r_adapter *a = fw_event->a;
spin_lock_irqsave(&a->fw_event_lock, flags);
list_del(&fw_event->list);
kfree(fw_event);
spin_unlock_irqrestore(&a->fw_event_lock, flags);
}
void
esas2r_fw_event_off(struct esas2r_adapter *a)
{
unsigned long flags;
spin_lock_irqsave(&a->fw_event_lock, flags);
a->fw_events_off = 1;
spin_unlock_irqrestore(&a->fw_event_lock, flags);
}
void
esas2r_fw_event_on(struct esas2r_adapter *a)
{
unsigned long flags;
spin_lock_irqsave(&a->fw_event_lock, flags);
a->fw_events_off = 0;
spin_unlock_irqrestore(&a->fw_event_lock, flags);
}
static void esas2r_add_device(struct esas2r_adapter *a, u16 target_id)
{
int ret;
struct scsi_device *scsi_dev;
scsi_dev = scsi_device_lookup(a->host, 0, target_id, 0);
if (scsi_dev) {
esas2r_log_dev(
ESAS2R_LOG_WARN,
&(scsi_dev->
sdev_gendev),
"scsi device already exists at id %d", target_id);
scsi_device_put(scsi_dev);
} else {
esas2r_log_dev(
ESAS2R_LOG_INFO,
&(a->host->
shost_gendev),
"scsi_add_device() called for 0:%d:0",
target_id);
ret = scsi_add_device(a->host, 0, target_id, 0);
if (ret) {
esas2r_log_dev(
ESAS2R_LOG_CRIT,
&(a->host->
shost_gendev),
"scsi_add_device failed with %d for id %d",
ret, target_id);
}
}
}
static void esas2r_remove_device(struct esas2r_adapter *a, u16 target_id)
{
struct scsi_device *scsi_dev;
scsi_dev = scsi_device_lookup(a->host, 0, target_id, 0);
if (scsi_dev) {
scsi_device_set_state(scsi_dev, SDEV_OFFLINE);
esas2r_log_dev(
ESAS2R_LOG_INFO,
&(scsi_dev->
sdev_gendev),
"scsi_remove_device() called for 0:%d:0",
target_id);
scsi_remove_device(scsi_dev);
esas2r_log_dev(
ESAS2R_LOG_INFO,
&(scsi_dev->
sdev_gendev),
"scsi_device_put() called");
scsi_device_put(scsi_dev);
} else {
esas2r_log_dev(
ESAS2R_LOG_WARN,
&(a->host->shost_gendev),
"no target found at id %d",
target_id);
}
}
/*
* Sends a firmware asynchronous event to anyone who happens to be
* listening on the defined ATTO VDA event ports.
*/
static void esas2r_send_ae_event(struct esas2r_fw_event_work *fw_event)
{
struct esas2r_vda_ae *ae = (struct esas2r_vda_ae *)fw_event->data;
char *type;
switch (ae->vda_ae.hdr.bytype) {
case VDAAE_HDR_TYPE_RAID:
type = "RAID group state change";
break;
case VDAAE_HDR_TYPE_LU:
type = "Mapped destination LU change";
break;
case VDAAE_HDR_TYPE_DISK:
type = "Physical disk inventory change";
break;
case VDAAE_HDR_TYPE_RESET:
type = "Firmware reset";
break;
case VDAAE_HDR_TYPE_LOG_INFO:
type = "Event Log message (INFO level)";
break;
case VDAAE_HDR_TYPE_LOG_WARN:
type = "Event Log message (WARN level)";
break;
case VDAAE_HDR_TYPE_LOG_CRIT:
type = "Event Log message (CRIT level)";
break;
case VDAAE_HDR_TYPE_LOG_FAIL:
type = "Event Log message (FAIL level)";
break;
case VDAAE_HDR_TYPE_NVC:
type = "NVCache change";
break;
case VDAAE_HDR_TYPE_TLG_INFO:
type = "Time stamped log message (INFO level)";
break;
case VDAAE_HDR_TYPE_TLG_WARN:
type = "Time stamped log message (WARN level)";
break;
case VDAAE_HDR_TYPE_TLG_CRIT:
type = "Time stamped log message (CRIT level)";
break;
case VDAAE_HDR_TYPE_PWRMGT:
type = "Power management";
break;
case VDAAE_HDR_TYPE_MUTE:
type = "Mute button pressed";
break;
case VDAAE_HDR_TYPE_DEV:
type = "Device attribute change";
break;
default:
type = "Unknown";
break;
}
esas2r_log(ESAS2R_LOG_WARN,
"An async event of type \"%s\" was received from the firmware. The event contents are:",
type);
esas2r_log_hexdump(ESAS2R_LOG_WARN, &ae->vda_ae,
ae->vda_ae.hdr.bylength);
}
static void
esas2r_firmware_event_work(struct work_struct *work)
{
struct esas2r_fw_event_work *fw_event =
container_of(work, struct esas2r_fw_event_work, work.work);
struct esas2r_adapter *a = fw_event->a;
u16 target_id = *(u16 *)&fw_event->data[0];
if (a->fw_events_off)
goto done;
switch (fw_event->type) {
case fw_event_null:
break; /* do nothing */
case fw_event_lun_change:
esas2r_remove_device(a, target_id);
esas2r_add_device(a, target_id);
break;
case fw_event_present:
esas2r_add_device(a, target_id);
break;
case fw_event_not_present:
esas2r_remove_device(a, target_id);
break;
case fw_event_vda_ae:
esas2r_send_ae_event(fw_event);
break;
}
done:
esas2r_free_fw_event(fw_event);
}
void esas2r_queue_fw_event(struct esas2r_adapter *a,
enum fw_event_type type,
void *data,
int data_sz)
{
struct esas2r_fw_event_work *fw_event;
unsigned long flags;
fw_event = kzalloc(sizeof(struct esas2r_fw_event_work), GFP_ATOMIC);
if (!fw_event) {
esas2r_log(ESAS2R_LOG_WARN,
"esas2r_queue_fw_event failed to alloc");
return;
}
if (type == fw_event_vda_ae) {
struct esas2r_vda_ae *ae =
(struct esas2r_vda_ae *)fw_event->data;
ae->signature = ESAS2R_VDA_EVENT_SIG;
ae->bus_number = a->pcid->bus->number;
ae->devfn = a->pcid->devfn;
memcpy(&ae->vda_ae, data, sizeof(ae->vda_ae));
} else {
memcpy(fw_event->data, data, data_sz);
}
fw_event->type = type;
fw_event->a = a;
spin_lock_irqsave(&a->fw_event_lock, flags);
list_add_tail(&fw_event->list, &a->fw_event_list);
INIT_DELAYED_WORK(&fw_event->work, esas2r_firmware_event_work);
queue_delayed_work_on(
smp_processor_id(), a->fw_event_q, &fw_event->work,
msecs_to_jiffies(1));
spin_unlock_irqrestore(&a->fw_event_lock, flags);
}
void esas2r_target_state_changed(struct esas2r_adapter *a, u16 targ_id,
u8 state)
{
if (state == TS_LUN_CHANGE)
esas2r_queue_fw_event(a, fw_event_lun_change, &targ_id,
sizeof(targ_id));
else if (state == TS_PRESENT)
esas2r_queue_fw_event(a, fw_event_present, &targ_id,
sizeof(targ_id));
else if (state == TS_NOT_PRESENT)
esas2r_queue_fw_event(a, fw_event_not_present, &targ_id,
sizeof(targ_id));
}
/* Translate status to a Linux SCSI mid-layer error code */
int esas2r_req_status_to_error(u8 req_stat)
{
switch (req_stat) {
case RS_OVERRUN:
case RS_UNDERRUN:
case RS_SUCCESS:
/*
* NOTE: SCSI mid-layer wants a good status for a SCSI error, because
* it will check the scsi_stat value in the completion anyway.
*/
case RS_SCSI_ERROR:
return DID_OK;
case RS_SEL:
case RS_SEL2:
return DID_NO_CONNECT;
case RS_RESET:
return DID_RESET;
case RS_ABORTED:
return DID_ABORT;
case RS_BUSY:
return DID_BUS_BUSY;
}
/* everything else is just an error. */
return DID_ERROR;
}
module_init(esas2r_init);
module_exit(esas2r_exit);
|
linux-master
|
drivers/scsi/esas2r/esas2r_main.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_ioctl.c
* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "esas2r.h"
/*
* Buffered ioctl handlers. A buffered ioctl is one which requires that we
* allocate a DMA-able memory area to communicate with the firmware. In
* order to prevent continually allocating and freeing consistent memory,
* we will allocate a global buffer the first time we need it and re-use
* it for subsequent ioctl calls that require it.
*/
u8 *esas2r_buffered_ioctl;
dma_addr_t esas2r_buffered_ioctl_addr;
u32 esas2r_buffered_ioctl_size;
struct pci_dev *esas2r_buffered_ioctl_pcid;
static DEFINE_SEMAPHORE(buffered_ioctl_semaphore, 1);
typedef int (*BUFFERED_IOCTL_CALLBACK)(struct esas2r_adapter *,
struct esas2r_request *,
struct esas2r_sg_context *,
void *);
typedef void (*BUFFERED_IOCTL_DONE_CALLBACK)(struct esas2r_adapter *,
struct esas2r_request *, void *);
struct esas2r_buffered_ioctl {
struct esas2r_adapter *a;
void *ioctl;
u32 length;
u32 control_code;
u32 offset;
BUFFERED_IOCTL_CALLBACK
callback;
void *context;
BUFFERED_IOCTL_DONE_CALLBACK
done_callback;
void *done_context;
};
static void complete_fm_api_req(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
a->fm_api_command_done = 1;
wake_up_interruptible(&a->fm_api_waiter);
}
/* Callbacks for building scatter/gather lists for FM API requests */
static u32 get_physaddr_fm_api(struct esas2r_sg_context *sgc, u64 *addr)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
int offset = sgc->cur_offset - a->save_offset;
(*addr) = a->firmware.phys + offset;
return a->firmware.orig_len - offset;
}
static u32 get_physaddr_fm_api_header(struct esas2r_sg_context *sgc, u64 *addr)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
int offset = sgc->cur_offset - a->save_offset;
(*addr) = a->firmware.header_buff_phys + offset;
return sizeof(struct esas2r_flash_img) - offset;
}
/* Handle EXPRESS_IOCTL_RW_FIRMWARE ioctl with img_type = FW_IMG_FM_API. */
static void do_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
{
struct esas2r_request *rq;
if (mutex_lock_interruptible(&a->fm_api_mutex)) {
fi->status = FI_STAT_BUSY;
return;
}
rq = esas2r_alloc_request(a);
if (rq == NULL) {
fi->status = FI_STAT_BUSY;
goto free_sem;
}
if (fi == &a->firmware.header) {
a->firmware.header_buff = dma_alloc_coherent(&a->pcid->dev,
(size_t)sizeof(
struct
esas2r_flash_img),
(dma_addr_t *)&a->
firmware.
header_buff_phys,
GFP_KERNEL);
if (a->firmware.header_buff == NULL) {
esas2r_debug("failed to allocate header buffer!");
fi->status = FI_STAT_BUSY;
goto free_req;
}
memcpy(a->firmware.header_buff, fi,
sizeof(struct esas2r_flash_img));
a->save_offset = a->firmware.header_buff;
a->fm_api_sgc.get_phys_addr =
(PGETPHYSADDR)get_physaddr_fm_api_header;
} else {
a->save_offset = (u8 *)fi;
a->fm_api_sgc.get_phys_addr =
(PGETPHYSADDR)get_physaddr_fm_api;
}
rq->comp_cb = complete_fm_api_req;
a->fm_api_command_done = 0;
a->fm_api_sgc.cur_offset = a->save_offset;
if (!esas2r_fm_api(a, (struct esas2r_flash_img *)a->save_offset, rq,
&a->fm_api_sgc))
goto all_done;
/* Now wait around for it to complete. */
while (!a->fm_api_command_done)
wait_event_interruptible(a->fm_api_waiter,
a->fm_api_command_done);
all_done:
if (fi == &a->firmware.header) {
memcpy(fi, a->firmware.header_buff,
sizeof(struct esas2r_flash_img));
dma_free_coherent(&a->pcid->dev,
(size_t)sizeof(struct esas2r_flash_img),
a->firmware.header_buff,
(dma_addr_t)a->firmware.header_buff_phys);
}
free_req:
esas2r_free_request(a, (struct esas2r_request *)rq);
free_sem:
mutex_unlock(&a->fm_api_mutex);
return;
}
static void complete_nvr_req(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
a->nvram_command_done = 1;
wake_up_interruptible(&a->nvram_waiter);
}
/* Callback for building scatter/gather lists for buffered ioctls */
static u32 get_physaddr_buffered_ioctl(struct esas2r_sg_context *sgc,
u64 *addr)
{
int offset = (u8 *)sgc->cur_offset - esas2r_buffered_ioctl;
(*addr) = esas2r_buffered_ioctl_addr + offset;
return esas2r_buffered_ioctl_size - offset;
}
static void complete_buffered_ioctl_req(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
a->buffered_ioctl_done = 1;
wake_up_interruptible(&a->buffered_ioctl_waiter);
}
static u8 handle_buffered_ioctl(struct esas2r_buffered_ioctl *bi)
{
struct esas2r_adapter *a = bi->a;
struct esas2r_request *rq;
struct esas2r_sg_context sgc;
u8 result = IOCTL_SUCCESS;
if (down_interruptible(&buffered_ioctl_semaphore))
return IOCTL_OUT_OF_RESOURCES;
/* allocate a buffer or use the existing buffer. */
if (esas2r_buffered_ioctl) {
if (esas2r_buffered_ioctl_size < bi->length) {
/* free the too-small buffer and get a new one */
dma_free_coherent(&a->pcid->dev,
(size_t)esas2r_buffered_ioctl_size,
esas2r_buffered_ioctl,
esas2r_buffered_ioctl_addr);
goto allocate_buffer;
}
} else {
allocate_buffer:
esas2r_buffered_ioctl_size = bi->length;
esas2r_buffered_ioctl_pcid = a->pcid;
esas2r_buffered_ioctl = dma_alloc_coherent(&a->pcid->dev,
(size_t)
esas2r_buffered_ioctl_size,
&
esas2r_buffered_ioctl_addr,
GFP_KERNEL);
}
if (!esas2r_buffered_ioctl) {
esas2r_log(ESAS2R_LOG_CRIT,
"could not allocate %d bytes of consistent memory "
"for a buffered ioctl!",
bi->length);
esas2r_debug("buffered ioctl alloc failure");
result = IOCTL_OUT_OF_RESOURCES;
goto exit_cleanly;
}
memcpy(esas2r_buffered_ioctl, bi->ioctl, bi->length);
rq = esas2r_alloc_request(a);
if (rq == NULL) {
esas2r_log(ESAS2R_LOG_CRIT,
"could not allocate an internal request");
result = IOCTL_OUT_OF_RESOURCES;
esas2r_debug("buffered ioctl - no requests");
goto exit_cleanly;
}
a->buffered_ioctl_done = 0;
rq->comp_cb = complete_buffered_ioctl_req;
sgc.cur_offset = esas2r_buffered_ioctl + bi->offset;
sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_buffered_ioctl;
sgc.length = esas2r_buffered_ioctl_size;
if (!(*bi->callback)(a, rq, &sgc, bi->context)) {
/* completed immediately, no need to wait */
a->buffered_ioctl_done = 0;
goto free_andexit_cleanly;
}
/* now wait around for it to complete. */
while (!a->buffered_ioctl_done)
wait_event_interruptible(a->buffered_ioctl_waiter,
a->buffered_ioctl_done);
free_andexit_cleanly:
if (result == IOCTL_SUCCESS && bi->done_callback)
(*bi->done_callback)(a, rq, bi->done_context);
esas2r_free_request(a, rq);
exit_cleanly:
if (result == IOCTL_SUCCESS)
memcpy(bi->ioctl, esas2r_buffered_ioctl, bi->length);
up(&buffered_ioctl_semaphore);
return result;
}
/* SMP ioctl support */
static int smp_ioctl_callback(struct esas2r_adapter *a,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc, void *context)
{
struct atto_ioctl_smp *si =
(struct atto_ioctl_smp *)esas2r_buffered_ioctl;
esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_SMP);
if (!esas2r_build_sg_list(a, rq, sgc)) {
si->status = ATTO_STS_OUT_OF_RSRC;
return false;
}
esas2r_start_request(a, rq);
return true;
}
static u8 handle_smp_ioctl(struct esas2r_adapter *a, struct atto_ioctl_smp *si)
{
struct esas2r_buffered_ioctl bi;
memset(&bi, 0, sizeof(bi));
bi.a = a;
bi.ioctl = si;
bi.length = sizeof(struct atto_ioctl_smp)
+ le32_to_cpu(si->req_length)
+ le32_to_cpu(si->rsp_length);
bi.offset = 0;
bi.callback = smp_ioctl_callback;
return handle_buffered_ioctl(&bi);
}
/* CSMI ioctl support */
static void esas2r_csmi_ioctl_tunnel_comp_cb(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
rq->target_id = le16_to_cpu(rq->func_rsp.ioctl_rsp.csmi.target_id);
rq->vrq->scsi.flags |= cpu_to_le32(rq->func_rsp.ioctl_rsp.csmi.lun);
/* Now call the original completion callback. */
(*rq->aux_req_cb)(a, rq);
}
/* Tunnel a CSMI IOCTL to the back end driver for processing. */
static bool csmi_ioctl_tunnel(struct esas2r_adapter *a,
union atto_ioctl_csmi *ci,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc,
u32 ctrl_code,
u16 target_id)
{
struct atto_vda_ioctl_req *ioctl = &rq->vrq->ioctl;
if (test_bit(AF_DEGRADED_MODE, &a->flags))
return false;
esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_CSMI);
ioctl->csmi.ctrl_code = cpu_to_le32(ctrl_code);
ioctl->csmi.target_id = cpu_to_le16(target_id);
ioctl->csmi.lun = (u8)le32_to_cpu(rq->vrq->scsi.flags);
/*
* Always usurp the completion callback since the interrupt callback
* mechanism may be used.
*/
rq->aux_req_cx = ci;
rq->aux_req_cb = rq->comp_cb;
rq->comp_cb = esas2r_csmi_ioctl_tunnel_comp_cb;
if (!esas2r_build_sg_list(a, rq, sgc))
return false;
esas2r_start_request(a, rq);
return true;
}
static bool check_lun(struct scsi_lun lun)
{
bool result;
result = ((lun.scsi_lun[7] == 0) &&
(lun.scsi_lun[6] == 0) &&
(lun.scsi_lun[5] == 0) &&
(lun.scsi_lun[4] == 0) &&
(lun.scsi_lun[3] == 0) &&
(lun.scsi_lun[2] == 0) &&
/* Byte 1 is intentionally skipped */
(lun.scsi_lun[0] == 0));
return result;
}
static int csmi_ioctl_callback(struct esas2r_adapter *a,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc, void *context)
{
struct atto_csmi *ci = (struct atto_csmi *)context;
union atto_ioctl_csmi *ioctl_csmi =
(union atto_ioctl_csmi *)esas2r_buffered_ioctl;
u8 path = 0;
u8 tid = 0;
u8 lun = 0;
u32 sts = CSMI_STS_SUCCESS;
struct esas2r_target *t;
unsigned long flags;
if (ci->control_code == CSMI_CC_GET_DEV_ADDR) {
struct atto_csmi_get_dev_addr *gda = &ci->data.dev_addr;
path = gda->path_id;
tid = gda->target_id;
lun = gda->lun;
} else if (ci->control_code == CSMI_CC_TASK_MGT) {
struct atto_csmi_task_mgmt *tm = &ci->data.tsk_mgt;
path = tm->path_id;
tid = tm->target_id;
lun = tm->lun;
}
if (path > 0) {
rq->func_rsp.ioctl_rsp.csmi.csmi_status = cpu_to_le32(
CSMI_STS_INV_PARAM);
return false;
}
rq->target_id = tid;
rq->vrq->scsi.flags |= cpu_to_le32(lun);
switch (ci->control_code) {
case CSMI_CC_GET_DRVR_INFO:
{
struct atto_csmi_get_driver_info *gdi = &ioctl_csmi->drvr_info;
strcpy(gdi->description, esas2r_get_model_name(a));
gdi->csmi_major_rev = CSMI_MAJOR_REV;
gdi->csmi_minor_rev = CSMI_MINOR_REV;
break;
}
case CSMI_CC_GET_CNTLR_CFG:
{
struct atto_csmi_get_cntlr_cfg *gcc = &ioctl_csmi->cntlr_cfg;
gcc->base_io_addr = 0;
pci_read_config_dword(a->pcid, PCI_BASE_ADDRESS_2,
&gcc->base_memaddr_lo);
pci_read_config_dword(a->pcid, PCI_BASE_ADDRESS_3,
&gcc->base_memaddr_hi);
gcc->board_id = MAKEDWORD(a->pcid->subsystem_device,
a->pcid->subsystem_vendor);
gcc->slot_num = CSMI_SLOT_NUM_UNKNOWN;
gcc->cntlr_class = CSMI_CNTLR_CLASS_HBA;
gcc->io_bus_type = CSMI_BUS_TYPE_PCI;
gcc->pci_addr.bus_num = a->pcid->bus->number;
gcc->pci_addr.device_num = PCI_SLOT(a->pcid->devfn);
gcc->pci_addr.function_num = PCI_FUNC(a->pcid->devfn);
memset(gcc->serial_num, 0, sizeof(gcc->serial_num));
gcc->major_rev = LOBYTE(LOWORD(a->fw_version));
gcc->minor_rev = HIBYTE(LOWORD(a->fw_version));
gcc->build_rev = LOBYTE(HIWORD(a->fw_version));
gcc->release_rev = HIBYTE(HIWORD(a->fw_version));
gcc->bios_major_rev = HIBYTE(HIWORD(a->flash_ver));
gcc->bios_minor_rev = LOBYTE(HIWORD(a->flash_ver));
gcc->bios_build_rev = LOWORD(a->flash_ver);
if (test_bit(AF2_THUNDERLINK, &a->flags2))
gcc->cntlr_flags = CSMI_CNTLRF_SAS_HBA
| CSMI_CNTLRF_SATA_HBA;
else
gcc->cntlr_flags = CSMI_CNTLRF_SAS_RAID
| CSMI_CNTLRF_SATA_RAID;
gcc->rrom_major_rev = 0;
gcc->rrom_minor_rev = 0;
gcc->rrom_build_rev = 0;
gcc->rrom_release_rev = 0;
gcc->rrom_biosmajor_rev = 0;
gcc->rrom_biosminor_rev = 0;
gcc->rrom_biosbuild_rev = 0;
gcc->rrom_biosrelease_rev = 0;
break;
}
case CSMI_CC_GET_CNTLR_STS:
{
struct atto_csmi_get_cntlr_sts *gcs = &ioctl_csmi->cntlr_sts;
if (test_bit(AF_DEGRADED_MODE, &a->flags))
gcs->status = CSMI_CNTLR_STS_FAILED;
else
gcs->status = CSMI_CNTLR_STS_GOOD;
gcs->offline_reason = CSMI_OFFLINE_NO_REASON;
break;
}
case CSMI_CC_FW_DOWNLOAD:
case CSMI_CC_GET_RAID_INFO:
case CSMI_CC_GET_RAID_CFG:
sts = CSMI_STS_BAD_CTRL_CODE;
break;
case CSMI_CC_SMP_PASSTHRU:
case CSMI_CC_SSP_PASSTHRU:
case CSMI_CC_STP_PASSTHRU:
case CSMI_CC_GET_PHY_INFO:
case CSMI_CC_SET_PHY_INFO:
case CSMI_CC_GET_LINK_ERRORS:
case CSMI_CC_GET_SATA_SIG:
case CSMI_CC_GET_CONN_INFO:
case CSMI_CC_PHY_CTRL:
if (!csmi_ioctl_tunnel(a, ioctl_csmi, rq, sgc,
ci->control_code,
ESAS2R_TARG_ID_INV)) {
sts = CSMI_STS_FAILED;
break;
}
return true;
case CSMI_CC_GET_SCSI_ADDR:
{
struct atto_csmi_get_scsi_addr *gsa = &ioctl_csmi->scsi_addr;
struct scsi_lun lun;
memcpy(&lun, gsa->sas_lun, sizeof(struct scsi_lun));
if (!check_lun(lun)) {
sts = CSMI_STS_NO_SCSI_ADDR;
break;
}
/* make sure the device is present */
spin_lock_irqsave(&a->mem_lock, flags);
t = esas2r_targ_db_find_by_sas_addr(a, (u64 *)gsa->sas_addr);
spin_unlock_irqrestore(&a->mem_lock, flags);
if (t == NULL) {
sts = CSMI_STS_NO_SCSI_ADDR;
break;
}
gsa->host_index = 0xFF;
gsa->lun = gsa->sas_lun[1];
rq->target_id = esas2r_targ_get_id(t, a);
break;
}
case CSMI_CC_GET_DEV_ADDR:
{
struct atto_csmi_get_dev_addr *gda = &ioctl_csmi->dev_addr;
/* make sure the target is present */
t = a->targetdb + rq->target_id;
if (t >= a->targetdb_end
|| t->target_state != TS_PRESENT
|| t->sas_addr == 0) {
sts = CSMI_STS_NO_DEV_ADDR;
break;
}
/* fill in the result */
*(u64 *)gda->sas_addr = t->sas_addr;
memset(gda->sas_lun, 0, sizeof(gda->sas_lun));
gda->sas_lun[1] = (u8)le32_to_cpu(rq->vrq->scsi.flags);
break;
}
case CSMI_CC_TASK_MGT:
/* make sure the target is present */
t = a->targetdb + rq->target_id;
if (t >= a->targetdb_end
|| t->target_state != TS_PRESENT
|| !(t->flags & TF_PASS_THRU)) {
sts = CSMI_STS_NO_DEV_ADDR;
break;
}
if (!csmi_ioctl_tunnel(a, ioctl_csmi, rq, sgc,
ci->control_code,
t->phys_targ_id)) {
sts = CSMI_STS_FAILED;
break;
}
return true;
default:
sts = CSMI_STS_BAD_CTRL_CODE;
break;
}
rq->func_rsp.ioctl_rsp.csmi.csmi_status = cpu_to_le32(sts);
return false;
}
static void csmi_ioctl_done_callback(struct esas2r_adapter *a,
struct esas2r_request *rq, void *context)
{
struct atto_csmi *ci = (struct atto_csmi *)context;
union atto_ioctl_csmi *ioctl_csmi =
(union atto_ioctl_csmi *)esas2r_buffered_ioctl;
switch (ci->control_code) {
case CSMI_CC_GET_DRVR_INFO:
{
struct atto_csmi_get_driver_info *gdi =
&ioctl_csmi->drvr_info;
strcpy(gdi->name, ESAS2R_VERSION_STR);
gdi->major_rev = ESAS2R_MAJOR_REV;
gdi->minor_rev = ESAS2R_MINOR_REV;
gdi->build_rev = 0;
gdi->release_rev = 0;
break;
}
case CSMI_CC_GET_SCSI_ADDR:
{
struct atto_csmi_get_scsi_addr *gsa = &ioctl_csmi->scsi_addr;
if (le32_to_cpu(rq->func_rsp.ioctl_rsp.csmi.csmi_status) ==
CSMI_STS_SUCCESS) {
gsa->target_id = rq->target_id;
gsa->path_id = 0;
}
break;
}
}
ci->status = le32_to_cpu(rq->func_rsp.ioctl_rsp.csmi.csmi_status);
}
static u8 handle_csmi_ioctl(struct esas2r_adapter *a, struct atto_csmi *ci)
{
struct esas2r_buffered_ioctl bi;
memset(&bi, 0, sizeof(bi));
bi.a = a;
bi.ioctl = &ci->data;
bi.length = sizeof(union atto_ioctl_csmi);
bi.offset = 0;
bi.callback = csmi_ioctl_callback;
bi.context = ci;
bi.done_callback = csmi_ioctl_done_callback;
bi.done_context = ci;
return handle_buffered_ioctl(&bi);
}
/* ATTO HBA ioctl support */
/* Tunnel an ATTO HBA IOCTL to the back end driver for processing. */
static bool hba_ioctl_tunnel(struct esas2r_adapter *a,
struct atto_ioctl *hi,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc)
{
esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_HBA);
if (!esas2r_build_sg_list(a, rq, sgc)) {
hi->status = ATTO_STS_OUT_OF_RSRC;
return false;
}
esas2r_start_request(a, rq);
return true;
}
static void scsi_passthru_comp_cb(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct atto_ioctl *hi = (struct atto_ioctl *)rq->aux_req_cx;
struct atto_hba_scsi_pass_thru *spt = &hi->data.scsi_pass_thru;
u8 sts = ATTO_SPT_RS_FAILED;
spt->scsi_status = rq->func_rsp.scsi_rsp.scsi_stat;
spt->sense_length = rq->sense_len;
spt->residual_length =
le32_to_cpu(rq->func_rsp.scsi_rsp.residual_length);
switch (rq->req_stat) {
case RS_SUCCESS:
case RS_SCSI_ERROR:
sts = ATTO_SPT_RS_SUCCESS;
break;
case RS_UNDERRUN:
sts = ATTO_SPT_RS_UNDERRUN;
break;
case RS_OVERRUN:
sts = ATTO_SPT_RS_OVERRUN;
break;
case RS_SEL:
case RS_SEL2:
sts = ATTO_SPT_RS_NO_DEVICE;
break;
case RS_NO_LUN:
sts = ATTO_SPT_RS_NO_LUN;
break;
case RS_TIMEOUT:
sts = ATTO_SPT_RS_TIMEOUT;
break;
case RS_DEGRADED:
sts = ATTO_SPT_RS_DEGRADED;
break;
case RS_BUSY:
sts = ATTO_SPT_RS_BUSY;
break;
case RS_ABORTED:
sts = ATTO_SPT_RS_ABORTED;
break;
case RS_RESET:
sts = ATTO_SPT_RS_BUS_RESET;
break;
}
spt->req_status = sts;
/* Update the target ID to the next one present. */
spt->target_id =
esas2r_targ_db_find_next_present(a, (u16)spt->target_id);
/* Done, call the completion callback. */
(*rq->aux_req_cb)(a, rq);
}
static int hba_ioctl_callback(struct esas2r_adapter *a,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc,
void *context)
{
struct atto_ioctl *hi = (struct atto_ioctl *)esas2r_buffered_ioctl;
hi->status = ATTO_STS_SUCCESS;
switch (hi->function) {
case ATTO_FUNC_GET_ADAP_INFO:
{
u8 *class_code = (u8 *)&a->pcid->class;
struct atto_hba_get_adapter_info *gai =
&hi->data.get_adap_info;
if (hi->flags & HBAF_TUNNEL) {
hi->status = ATTO_STS_UNSUPPORTED;
break;
}
if (hi->version > ATTO_VER_GET_ADAP_INFO0) {
hi->status = ATTO_STS_INV_VERSION;
hi->version = ATTO_VER_GET_ADAP_INFO0;
break;
}
memset(gai, 0, sizeof(*gai));
gai->pci.vendor_id = a->pcid->vendor;
gai->pci.device_id = a->pcid->device;
gai->pci.ss_vendor_id = a->pcid->subsystem_vendor;
gai->pci.ss_device_id = a->pcid->subsystem_device;
gai->pci.class_code[0] = class_code[0];
gai->pci.class_code[1] = class_code[1];
gai->pci.class_code[2] = class_code[2];
gai->pci.rev_id = a->pcid->revision;
gai->pci.bus_num = a->pcid->bus->number;
gai->pci.dev_num = PCI_SLOT(a->pcid->devfn);
gai->pci.func_num = PCI_FUNC(a->pcid->devfn);
if (pci_is_pcie(a->pcid)) {
u16 stat;
u32 caps;
pcie_capability_read_word(a->pcid, PCI_EXP_LNKSTA,
&stat);
pcie_capability_read_dword(a->pcid, PCI_EXP_LNKCAP,
&caps);
gai->pci.link_speed_curr =
(u8)(stat & PCI_EXP_LNKSTA_CLS);
gai->pci.link_speed_max =
(u8)(caps & PCI_EXP_LNKCAP_SLS);
gai->pci.link_width_curr =
(u8)((stat & PCI_EXP_LNKSTA_NLW)
>> PCI_EXP_LNKSTA_NLW_SHIFT);
gai->pci.link_width_max =
(u8)((caps & PCI_EXP_LNKCAP_MLW)
>> 4);
}
gai->pci.msi_vector_cnt = 1;
if (a->pcid->msix_enabled)
gai->pci.interrupt_mode = ATTO_GAI_PCIIM_MSIX;
else if (a->pcid->msi_enabled)
gai->pci.interrupt_mode = ATTO_GAI_PCIIM_MSI;
else
gai->pci.interrupt_mode = ATTO_GAI_PCIIM_LEGACY;
gai->adap_type = ATTO_GAI_AT_ESASRAID2;
if (test_bit(AF2_THUNDERLINK, &a->flags2))
gai->adap_type = ATTO_GAI_AT_TLSASHBA;
if (test_bit(AF_DEGRADED_MODE, &a->flags))
gai->adap_flags |= ATTO_GAI_AF_DEGRADED;
gai->adap_flags |= ATTO_GAI_AF_SPT_SUPP |
ATTO_GAI_AF_DEVADDR_SUPP;
if (a->pcid->subsystem_device == ATTO_ESAS_R60F
|| a->pcid->subsystem_device == ATTO_ESAS_R608
|| a->pcid->subsystem_device == ATTO_ESAS_R644
|| a->pcid->subsystem_device == ATTO_TSSC_3808E)
gai->adap_flags |= ATTO_GAI_AF_VIRT_SES;
gai->num_ports = ESAS2R_NUM_PHYS;
gai->num_phys = ESAS2R_NUM_PHYS;
strcpy(gai->firmware_rev, a->fw_rev);
strcpy(gai->flash_rev, a->flash_rev);
strcpy(gai->model_name_short, esas2r_get_model_name_short(a));
strcpy(gai->model_name, esas2r_get_model_name(a));
gai->num_targets = ESAS2R_MAX_TARGETS;
gai->num_busses = 1;
gai->num_targsper_bus = gai->num_targets;
gai->num_lunsper_targ = 256;
if (a->pcid->subsystem_device == ATTO_ESAS_R6F0
|| a->pcid->subsystem_device == ATTO_ESAS_R60F)
gai->num_connectors = 4;
else
gai->num_connectors = 2;
gai->adap_flags2 |= ATTO_GAI_AF2_ADAP_CTRL_SUPP;
gai->num_targets_backend = a->num_targets_backend;
gai->tunnel_flags = a->ioctl_tunnel
& (ATTO_GAI_TF_MEM_RW
| ATTO_GAI_TF_TRACE
| ATTO_GAI_TF_SCSI_PASS_THRU
| ATTO_GAI_TF_GET_DEV_ADDR
| ATTO_GAI_TF_PHY_CTRL
| ATTO_GAI_TF_CONN_CTRL
| ATTO_GAI_TF_GET_DEV_INFO);
break;
}
case ATTO_FUNC_GET_ADAP_ADDR:
{
struct atto_hba_get_adapter_address *gaa =
&hi->data.get_adap_addr;
if (hi->flags & HBAF_TUNNEL) {
hi->status = ATTO_STS_UNSUPPORTED;
break;
}
if (hi->version > ATTO_VER_GET_ADAP_ADDR0) {
hi->status = ATTO_STS_INV_VERSION;
hi->version = ATTO_VER_GET_ADAP_ADDR0;
} else if (gaa->addr_type == ATTO_GAA_AT_PORT
|| gaa->addr_type == ATTO_GAA_AT_NODE) {
if (gaa->addr_type == ATTO_GAA_AT_PORT
&& gaa->port_id >= ESAS2R_NUM_PHYS) {
hi->status = ATTO_STS_NOT_APPL;
} else {
memcpy((u64 *)gaa->address,
&a->nvram->sas_addr[0], sizeof(u64));
gaa->addr_len = sizeof(u64);
}
} else {
hi->status = ATTO_STS_INV_PARAM;
}
break;
}
case ATTO_FUNC_MEM_RW:
{
if (hi->flags & HBAF_TUNNEL) {
if (hba_ioctl_tunnel(a, hi, rq, sgc))
return true;
break;
}
hi->status = ATTO_STS_UNSUPPORTED;
break;
}
case ATTO_FUNC_TRACE:
{
struct atto_hba_trace *trc = &hi->data.trace;
if (hi->flags & HBAF_TUNNEL) {
if (hba_ioctl_tunnel(a, hi, rq, sgc))
return true;
break;
}
if (hi->version > ATTO_VER_TRACE1) {
hi->status = ATTO_STS_INV_VERSION;
hi->version = ATTO_VER_TRACE1;
break;
}
if (trc->trace_type == ATTO_TRC_TT_FWCOREDUMP
&& hi->version >= ATTO_VER_TRACE1) {
if (trc->trace_func == ATTO_TRC_TF_UPLOAD) {
u32 len = hi->data_length;
u32 offset = trc->current_offset;
u32 total_len = ESAS2R_FWCOREDUMP_SZ;
/* Size is zero if a core dump isn't present */
if (!test_bit(AF2_COREDUMP_SAVED, &a->flags2))
total_len = 0;
if (len > total_len)
len = total_len;
if (offset >= total_len
|| offset + len > total_len
|| len == 0) {
hi->status = ATTO_STS_INV_PARAM;
break;
}
memcpy(trc->contents,
a->fw_coredump_buff + offset,
len);
hi->data_length = len;
} else if (trc->trace_func == ATTO_TRC_TF_RESET) {
memset(a->fw_coredump_buff, 0,
ESAS2R_FWCOREDUMP_SZ);
clear_bit(AF2_COREDUMP_SAVED, &a->flags2);
} else if (trc->trace_func != ATTO_TRC_TF_GET_INFO) {
hi->status = ATTO_STS_UNSUPPORTED;
break;
}
/* Always return all the info we can. */
trc->trace_mask = 0;
trc->current_offset = 0;
trc->total_length = ESAS2R_FWCOREDUMP_SZ;
/* Return zero length buffer if core dump not present */
if (!test_bit(AF2_COREDUMP_SAVED, &a->flags2))
trc->total_length = 0;
} else {
hi->status = ATTO_STS_UNSUPPORTED;
}
break;
}
case ATTO_FUNC_SCSI_PASS_THRU:
{
struct atto_hba_scsi_pass_thru *spt = &hi->data.scsi_pass_thru;
struct scsi_lun lun;
memcpy(&lun, spt->lun, sizeof(struct scsi_lun));
if (hi->flags & HBAF_TUNNEL) {
if (hba_ioctl_tunnel(a, hi, rq, sgc))
return true;
break;
}
if (hi->version > ATTO_VER_SCSI_PASS_THRU0) {
hi->status = ATTO_STS_INV_VERSION;
hi->version = ATTO_VER_SCSI_PASS_THRU0;
break;
}
if (spt->target_id >= ESAS2R_MAX_TARGETS || !check_lun(lun)) {
hi->status = ATTO_STS_INV_PARAM;
break;
}
esas2r_sgc_init(sgc, a, rq, NULL);
sgc->length = hi->data_length;
sgc->cur_offset += offsetof(struct atto_ioctl, data.byte)
+ sizeof(struct atto_hba_scsi_pass_thru);
/* Finish request initialization */
rq->target_id = (u16)spt->target_id;
rq->vrq->scsi.flags |= cpu_to_le32(spt->lun[1]);
memcpy(rq->vrq->scsi.cdb, spt->cdb, 16);
rq->vrq->scsi.length = cpu_to_le32(hi->data_length);
rq->sense_len = spt->sense_length;
rq->sense_buf = (u8 *)spt->sense_data;
/* NOTE: we ignore spt->timeout */
/*
* always usurp the completion callback since the interrupt
* callback mechanism may be used.
*/
rq->aux_req_cx = hi;
rq->aux_req_cb = rq->comp_cb;
rq->comp_cb = scsi_passthru_comp_cb;
if (spt->flags & ATTO_SPTF_DATA_IN) {
rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_RDD);
} else if (spt->flags & ATTO_SPTF_DATA_OUT) {
rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_WRD);
} else {
if (sgc->length) {
hi->status = ATTO_STS_INV_PARAM;
break;
}
}
if (spt->flags & ATTO_SPTF_ORDERED_Q)
rq->vrq->scsi.flags |=
cpu_to_le32(FCP_CMND_TA_ORDRD_Q);
else if (spt->flags & ATTO_SPTF_HEAD_OF_Q)
rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_TA_HEAD_Q);
if (!esas2r_build_sg_list(a, rq, sgc)) {
hi->status = ATTO_STS_OUT_OF_RSRC;
break;
}
esas2r_start_request(a, rq);
return true;
}
case ATTO_FUNC_GET_DEV_ADDR:
{
struct atto_hba_get_device_address *gda =
&hi->data.get_dev_addr;
struct esas2r_target *t;
if (hi->flags & HBAF_TUNNEL) {
if (hba_ioctl_tunnel(a, hi, rq, sgc))
return true;
break;
}
if (hi->version > ATTO_VER_GET_DEV_ADDR0) {
hi->status = ATTO_STS_INV_VERSION;
hi->version = ATTO_VER_GET_DEV_ADDR0;
break;
}
if (gda->target_id >= ESAS2R_MAX_TARGETS) {
hi->status = ATTO_STS_INV_PARAM;
break;
}
t = a->targetdb + (u16)gda->target_id;
if (t->target_state != TS_PRESENT) {
hi->status = ATTO_STS_FAILED;
} else if (gda->addr_type == ATTO_GDA_AT_PORT) {
if (t->sas_addr == 0) {
hi->status = ATTO_STS_UNSUPPORTED;
} else {
*(u64 *)gda->address = t->sas_addr;
gda->addr_len = sizeof(u64);
}
} else if (gda->addr_type == ATTO_GDA_AT_NODE) {
hi->status = ATTO_STS_NOT_APPL;
} else {
hi->status = ATTO_STS_INV_PARAM;
}
/* update the target ID to the next one present. */
gda->target_id =
esas2r_targ_db_find_next_present(a,
(u16)gda->target_id);
break;
}
case ATTO_FUNC_PHY_CTRL:
case ATTO_FUNC_CONN_CTRL:
{
if (hba_ioctl_tunnel(a, hi, rq, sgc))
return true;
break;
}
case ATTO_FUNC_ADAP_CTRL:
{
struct atto_hba_adap_ctrl *ac = &hi->data.adap_ctrl;
if (hi->flags & HBAF_TUNNEL) {
hi->status = ATTO_STS_UNSUPPORTED;
break;
}
if (hi->version > ATTO_VER_ADAP_CTRL0) {
hi->status = ATTO_STS_INV_VERSION;
hi->version = ATTO_VER_ADAP_CTRL0;
break;
}
if (ac->adap_func == ATTO_AC_AF_HARD_RST) {
esas2r_reset_adapter(a);
} else if (ac->adap_func != ATTO_AC_AF_GET_STATE) {
hi->status = ATTO_STS_UNSUPPORTED;
break;
}
if (test_bit(AF_CHPRST_NEEDED, &a->flags))
ac->adap_state = ATTO_AC_AS_RST_SCHED;
else if (test_bit(AF_CHPRST_PENDING, &a->flags))
ac->adap_state = ATTO_AC_AS_RST_IN_PROG;
else if (test_bit(AF_DISC_PENDING, &a->flags))
ac->adap_state = ATTO_AC_AS_RST_DISC;
else if (test_bit(AF_DISABLED, &a->flags))
ac->adap_state = ATTO_AC_AS_DISABLED;
else if (test_bit(AF_DEGRADED_MODE, &a->flags))
ac->adap_state = ATTO_AC_AS_DEGRADED;
else
ac->adap_state = ATTO_AC_AS_OK;
break;
}
case ATTO_FUNC_GET_DEV_INFO:
{
struct atto_hba_get_device_info *gdi = &hi->data.get_dev_info;
struct esas2r_target *t;
if (hi->flags & HBAF_TUNNEL) {
if (hba_ioctl_tunnel(a, hi, rq, sgc))
return true;
break;
}
if (hi->version > ATTO_VER_GET_DEV_INFO0) {
hi->status = ATTO_STS_INV_VERSION;
hi->version = ATTO_VER_GET_DEV_INFO0;
break;
}
if (gdi->target_id >= ESAS2R_MAX_TARGETS) {
hi->status = ATTO_STS_INV_PARAM;
break;
}
t = a->targetdb + (u16)gdi->target_id;
/* update the target ID to the next one present. */
gdi->target_id =
esas2r_targ_db_find_next_present(a,
(u16)gdi->target_id);
if (t->target_state != TS_PRESENT) {
hi->status = ATTO_STS_FAILED;
break;
}
hi->status = ATTO_STS_UNSUPPORTED;
break;
}
default:
hi->status = ATTO_STS_INV_FUNC;
break;
}
return false;
}
static void hba_ioctl_done_callback(struct esas2r_adapter *a,
struct esas2r_request *rq, void *context)
{
struct atto_ioctl *ioctl_hba =
(struct atto_ioctl *)esas2r_buffered_ioctl;
esas2r_debug("hba_ioctl_done_callback %d", a->index);
if (ioctl_hba->function == ATTO_FUNC_GET_ADAP_INFO) {
struct atto_hba_get_adapter_info *gai =
&ioctl_hba->data.get_adap_info;
esas2r_debug("ATTO_FUNC_GET_ADAP_INFO");
gai->drvr_rev_major = ESAS2R_MAJOR_REV;
gai->drvr_rev_minor = ESAS2R_MINOR_REV;
strcpy(gai->drvr_rev_ascii, ESAS2R_VERSION_STR);
strcpy(gai->drvr_name, ESAS2R_DRVR_NAME);
gai->num_busses = 1;
gai->num_targsper_bus = ESAS2R_MAX_ID + 1;
gai->num_lunsper_targ = 1;
}
}
u8 handle_hba_ioctl(struct esas2r_adapter *a,
struct atto_ioctl *ioctl_hba)
{
struct esas2r_buffered_ioctl bi;
memset(&bi, 0, sizeof(bi));
bi.a = a;
bi.ioctl = ioctl_hba;
bi.length = sizeof(struct atto_ioctl) + ioctl_hba->data_length;
bi.callback = hba_ioctl_callback;
bi.context = NULL;
bi.done_callback = hba_ioctl_done_callback;
bi.done_context = NULL;
bi.offset = 0;
return handle_buffered_ioctl(&bi);
}
int esas2r_write_params(struct esas2r_adapter *a, struct esas2r_request *rq,
struct esas2r_sas_nvram *data)
{
int result = 0;
a->nvram_command_done = 0;
rq->comp_cb = complete_nvr_req;
if (esas2r_nvram_write(a, rq, data)) {
/* now wait around for it to complete. */
while (!a->nvram_command_done)
wait_event_interruptible(a->nvram_waiter,
a->nvram_command_done);
;
/* done, check the status. */
if (rq->req_stat == RS_SUCCESS)
result = 1;
}
return result;
}
/* This function only cares about ATTO-specific ioctls (atto_express_ioctl) */
int esas2r_ioctl_handler(void *hostdata, unsigned int cmd, void __user *arg)
{
struct atto_express_ioctl *ioctl = NULL;
struct esas2r_adapter *a;
struct esas2r_request *rq;
u16 code;
int err;
esas2r_log(ESAS2R_LOG_DEBG, "ioctl (%p, %x, %p)", hostdata, cmd, arg);
if ((arg == NULL)
|| (cmd < EXPRESS_IOCTL_MIN)
|| (cmd > EXPRESS_IOCTL_MAX))
return -ENOTSUPP;
ioctl = memdup_user(arg, sizeof(struct atto_express_ioctl));
if (IS_ERR(ioctl)) {
esas2r_log(ESAS2R_LOG_WARN,
"ioctl_handler access_ok failed for cmd %u, address %p",
cmd, arg);
return PTR_ERR(ioctl);
}
/* verify the signature */
if (memcmp(ioctl->header.signature,
EXPRESS_IOCTL_SIGNATURE,
EXPRESS_IOCTL_SIGNATURE_SIZE) != 0) {
esas2r_log(ESAS2R_LOG_WARN, "invalid signature");
kfree(ioctl);
return -ENOTSUPP;
}
/* assume success */
ioctl->header.return_code = IOCTL_SUCCESS;
err = 0;
/*
* handle EXPRESS_IOCTL_GET_CHANNELS
* without paying attention to channel
*/
if (cmd == EXPRESS_IOCTL_GET_CHANNELS) {
int i = 0, k = 0;
ioctl->data.chanlist.num_channels = 0;
while (i < MAX_ADAPTERS) {
if (esas2r_adapters[i]) {
ioctl->data.chanlist.num_channels++;
ioctl->data.chanlist.channel[k] = i;
k++;
}
i++;
}
goto ioctl_done;
}
/* get the channel */
if (ioctl->header.channel == 0xFF) {
a = (struct esas2r_adapter *)hostdata;
} else {
if (ioctl->header.channel >= MAX_ADAPTERS ||
esas2r_adapters[ioctl->header.channel] == NULL) {
ioctl->header.return_code = IOCTL_BAD_CHANNEL;
esas2r_log(ESAS2R_LOG_WARN, "bad channel value");
kfree(ioctl);
return -ENOTSUPP;
}
a = esas2r_adapters[ioctl->header.channel];
}
switch (cmd) {
case EXPRESS_IOCTL_RW_FIRMWARE:
if (ioctl->data.fwrw.img_type == FW_IMG_FM_API) {
err = esas2r_write_fw(a,
(char *)ioctl->data.fwrw.image,
0,
sizeof(struct
atto_express_ioctl));
if (err >= 0) {
err = esas2r_read_fw(a,
(char *)ioctl->data.fwrw.
image,
0,
sizeof(struct
atto_express_ioctl));
}
} else if (ioctl->data.fwrw.img_type == FW_IMG_FS_API) {
err = esas2r_write_fs(a,
(char *)ioctl->data.fwrw.image,
0,
sizeof(struct
atto_express_ioctl));
if (err >= 0) {
err = esas2r_read_fs(a,
(char *)ioctl->data.fwrw.
image,
0,
sizeof(struct
atto_express_ioctl));
}
} else {
ioctl->header.return_code = IOCTL_BAD_FLASH_IMGTYPE;
}
break;
case EXPRESS_IOCTL_READ_PARAMS:
memcpy(ioctl->data.prw.data_buffer, a->nvram,
sizeof(struct esas2r_sas_nvram));
ioctl->data.prw.code = 1;
break;
case EXPRESS_IOCTL_WRITE_PARAMS:
rq = esas2r_alloc_request(a);
if (rq == NULL) {
kfree(ioctl);
esas2r_log(ESAS2R_LOG_WARN,
"could not allocate an internal request");
return -ENOMEM;
}
code = esas2r_write_params(a, rq,
(struct esas2r_sas_nvram *)ioctl->data.prw.data_buffer);
ioctl->data.prw.code = code;
esas2r_free_request(a, rq);
break;
case EXPRESS_IOCTL_DEFAULT_PARAMS:
esas2r_nvram_get_defaults(a,
(struct esas2r_sas_nvram *)ioctl->data.prw.data_buffer);
ioctl->data.prw.code = 1;
break;
case EXPRESS_IOCTL_CHAN_INFO:
ioctl->data.chaninfo.major_rev = ESAS2R_MAJOR_REV;
ioctl->data.chaninfo.minor_rev = ESAS2R_MINOR_REV;
ioctl->data.chaninfo.IRQ = a->pcid->irq;
ioctl->data.chaninfo.device_id = a->pcid->device;
ioctl->data.chaninfo.vendor_id = a->pcid->vendor;
ioctl->data.chaninfo.ven_dev_id = a->pcid->subsystem_device;
ioctl->data.chaninfo.revision_id = a->pcid->revision;
ioctl->data.chaninfo.pci_bus = a->pcid->bus->number;
ioctl->data.chaninfo.pci_dev_func = a->pcid->devfn;
ioctl->data.chaninfo.core_rev = 0;
ioctl->data.chaninfo.host_no = a->host->host_no;
ioctl->data.chaninfo.hbaapi_rev = 0;
break;
case EXPRESS_IOCTL_SMP:
ioctl->header.return_code = handle_smp_ioctl(a,
&ioctl->data.
ioctl_smp);
break;
case EXPRESS_CSMI:
ioctl->header.return_code =
handle_csmi_ioctl(a, &ioctl->data.csmi);
break;
case EXPRESS_IOCTL_HBA:
ioctl->header.return_code = handle_hba_ioctl(a,
&ioctl->data.
ioctl_hba);
break;
case EXPRESS_IOCTL_VDA:
err = esas2r_write_vda(a,
(char *)&ioctl->data.ioctl_vda,
0,
sizeof(struct atto_ioctl_vda) +
ioctl->data.ioctl_vda.data_length);
if (err >= 0) {
err = esas2r_read_vda(a,
(char *)&ioctl->data.ioctl_vda,
0,
sizeof(struct atto_ioctl_vda) +
ioctl->data.ioctl_vda.data_length);
}
break;
case EXPRESS_IOCTL_GET_MOD_INFO:
ioctl->data.modinfo.adapter = a;
ioctl->data.modinfo.pci_dev = a->pcid;
ioctl->data.modinfo.scsi_host = a->host;
ioctl->data.modinfo.host_no = a->host->host_no;
break;
default:
esas2r_debug("esas2r_ioctl invalid cmd %p!", cmd);
ioctl->header.return_code = IOCTL_ERR_INVCMD;
}
ioctl_done:
if (err < 0) {
esas2r_log(ESAS2R_LOG_WARN, "err %d on ioctl cmd %u", err,
cmd);
switch (err) {
case -ENOMEM:
case -EBUSY:
ioctl->header.return_code = IOCTL_OUT_OF_RESOURCES;
break;
case -ENOSYS:
case -EINVAL:
ioctl->header.return_code = IOCTL_INVALID_PARAM;
break;
default:
ioctl->header.return_code = IOCTL_GENERAL_ERROR;
break;
}
}
/* Always copy the buffer back, if only to pick up the status */
err = copy_to_user(arg, ioctl, sizeof(struct atto_express_ioctl));
if (err != 0) {
esas2r_log(ESAS2R_LOG_WARN,
"ioctl_handler copy_to_user didn't copy everything (err %d, cmd %u)",
err, cmd);
kfree(ioctl);
return -EFAULT;
}
kfree(ioctl);
return 0;
}
int esas2r_ioctl(struct scsi_device *sd, unsigned int cmd, void __user *arg)
{
return esas2r_ioctl_handler(sd->host->hostdata, cmd, arg);
}
static void free_fw_buffers(struct esas2r_adapter *a)
{
if (a->firmware.data) {
dma_free_coherent(&a->pcid->dev,
(size_t)a->firmware.orig_len,
a->firmware.data,
(dma_addr_t)a->firmware.phys);
a->firmware.data = NULL;
}
}
static int allocate_fw_buffers(struct esas2r_adapter *a, u32 length)
{
free_fw_buffers(a);
a->firmware.orig_len = length;
a->firmware.data = dma_alloc_coherent(&a->pcid->dev,
(size_t)length,
(dma_addr_t *)&a->firmware.phys,
GFP_KERNEL);
if (!a->firmware.data) {
esas2r_debug("buffer alloc failed!");
return 0;
}
return 1;
}
/* Handle a call to read firmware. */
int esas2r_read_fw(struct esas2r_adapter *a, char *buf, long off, int count)
{
esas2r_trace_enter();
/* if the cached header is a status, simply copy it over and return. */
if (a->firmware.state == FW_STATUS_ST) {
int size = min_t(int, count, sizeof(a->firmware.header));
esas2r_trace_exit();
memcpy(buf, &a->firmware.header, size);
esas2r_debug("esas2r_read_fw: STATUS size %d", size);
return size;
}
/*
* if the cached header is a command, do it if at
* offset 0, otherwise copy the pieces.
*/
if (a->firmware.state == FW_COMMAND_ST) {
u32 length = a->firmware.header.length;
esas2r_trace_exit();
esas2r_debug("esas2r_read_fw: COMMAND length %d off %d",
length,
off);
if (off == 0) {
if (a->firmware.header.action == FI_ACT_UP) {
if (!allocate_fw_buffers(a, length))
return -ENOMEM;
/* copy header over */
memcpy(a->firmware.data,
&a->firmware.header,
sizeof(a->firmware.header));
do_fm_api(a,
(struct esas2r_flash_img *)a->firmware.data);
} else if (a->firmware.header.action == FI_ACT_UPSZ) {
int size =
min((int)count,
(int)sizeof(a->firmware.header));
do_fm_api(a, &a->firmware.header);
memcpy(buf, &a->firmware.header, size);
esas2r_debug("FI_ACT_UPSZ size %d", size);
return size;
} else {
esas2r_debug("invalid action %d",
a->firmware.header.action);
return -ENOSYS;
}
}
if (count + off > length)
count = length - off;
if (count < 0)
return 0;
if (!a->firmware.data) {
esas2r_debug(
"read: nonzero offset but no buffer available!");
return -ENOMEM;
}
esas2r_debug("esas2r_read_fw: off %d count %d length %d ", off,
count,
length);
memcpy(buf, &a->firmware.data[off], count);
/* when done, release the buffer */
if (length <= off + count) {
esas2r_debug("esas2r_read_fw: freeing buffer!");
free_fw_buffers(a);
}
return count;
}
esas2r_trace_exit();
esas2r_debug("esas2r_read_fw: invalid firmware state %d",
a->firmware.state);
return -EINVAL;
}
/* Handle a call to write firmware. */
int esas2r_write_fw(struct esas2r_adapter *a, const char *buf, long off,
int count)
{
u32 length;
if (off == 0) {
struct esas2r_flash_img *header =
(struct esas2r_flash_img *)buf;
/* assume version 0 flash image */
int min_size = sizeof(struct esas2r_flash_img_v0);
a->firmware.state = FW_INVALID_ST;
/* validate the version field first */
if (count < 4
|| header->fi_version > FI_VERSION_1) {
esas2r_debug(
"esas2r_write_fw: short header or invalid version");
return -EINVAL;
}
/* See if its a version 1 flash image */
if (header->fi_version == FI_VERSION_1)
min_size = sizeof(struct esas2r_flash_img);
/* If this is the start, the header must be full and valid. */
if (count < min_size) {
esas2r_debug("esas2r_write_fw: short header, aborting");
return -EINVAL;
}
/* Make sure the size is reasonable. */
length = header->length;
if (length > 1024 * 1024) {
esas2r_debug(
"esas2r_write_fw: hosed, length %d fi_version %d",
length, header->fi_version);
return -EINVAL;
}
/*
* If this is a write command, allocate memory because
* we have to cache everything. otherwise, just cache
* the header, because the read op will do the command.
*/
if (header->action == FI_ACT_DOWN) {
if (!allocate_fw_buffers(a, length))
return -ENOMEM;
/*
* Store the command, so there is context on subsequent
* calls.
*/
memcpy(&a->firmware.header,
buf,
sizeof(*header));
} else if (header->action == FI_ACT_UP
|| header->action == FI_ACT_UPSZ) {
/* Save the command, result will be picked up on read */
memcpy(&a->firmware.header,
buf,
sizeof(*header));
a->firmware.state = FW_COMMAND_ST;
esas2r_debug(
"esas2r_write_fw: COMMAND, count %d, action %d ",
count, header->action);
/*
* Pretend we took the whole buffer,
* so we don't get bothered again.
*/
return count;
} else {
esas2r_debug("esas2r_write_fw: invalid action %d ",
a->firmware.header.action);
return -ENOSYS;
}
} else {
length = a->firmware.header.length;
}
/*
* We only get here on a download command, regardless of offset.
* the chunks written by the system need to be cached, and when
* the final one arrives, issue the fmapi command.
*/
if (off + count > length)
count = length - off;
if (count > 0) {
esas2r_debug("esas2r_write_fw: off %d count %d length %d", off,
count,
length);
/*
* On a full upload, the system tries sending the whole buffer.
* there's nothing to do with it, so just drop it here, before
* trying to copy over into unallocated memory!
*/
if (a->firmware.header.action == FI_ACT_UP)
return count;
if (!a->firmware.data) {
esas2r_debug(
"write: nonzero offset but no buffer available!");
return -ENOMEM;
}
memcpy(&a->firmware.data[off], buf, count);
if (length == off + count) {
do_fm_api(a,
(struct esas2r_flash_img *)a->firmware.data);
/*
* Now copy the header result to be picked up by the
* next read
*/
memcpy(&a->firmware.header,
a->firmware.data,
sizeof(a->firmware.header));
a->firmware.state = FW_STATUS_ST;
esas2r_debug("write completed");
/*
* Since the system has the data buffered, the only way
* this can leak is if a root user writes a program
* that writes a shorter buffer than it claims, and the
* copyin fails.
*/
free_fw_buffers(a);
}
}
return count;
}
/* Callback for the completion of a VDA request. */
static void vda_complete_req(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
a->vda_command_done = 1;
wake_up_interruptible(&a->vda_waiter);
}
/* Scatter/gather callback for VDA requests */
static u32 get_physaddr_vda(struct esas2r_sg_context *sgc, u64 *addr)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
int offset = (u8 *)sgc->cur_offset - (u8 *)a->vda_buffer;
(*addr) = a->ppvda_buffer + offset;
return VDA_MAX_BUFFER_SIZE - offset;
}
/* Handle a call to read a VDA command. */
int esas2r_read_vda(struct esas2r_adapter *a, char *buf, long off, int count)
{
if (!a->vda_buffer)
return -ENOMEM;
if (off == 0) {
struct esas2r_request *rq;
struct atto_ioctl_vda *vi =
(struct atto_ioctl_vda *)a->vda_buffer;
struct esas2r_sg_context sgc;
bool wait_for_completion;
/*
* Presumeably, someone has already written to the vda_buffer,
* and now they are reading the node the response, so now we
* will actually issue the request to the chip and reply.
*/
/* allocate a request */
rq = esas2r_alloc_request(a);
if (rq == NULL) {
esas2r_debug("esas2r_read_vda: out of requests");
return -EBUSY;
}
rq->comp_cb = vda_complete_req;
sgc.first_req = rq;
sgc.adapter = a;
sgc.cur_offset = a->vda_buffer + VDA_BUFFER_HEADER_SZ;
sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_vda;
a->vda_command_done = 0;
wait_for_completion =
esas2r_process_vda_ioctl(a, vi, rq, &sgc);
if (wait_for_completion) {
/* now wait around for it to complete. */
while (!a->vda_command_done)
wait_event_interruptible(a->vda_waiter,
a->vda_command_done);
}
esas2r_free_request(a, (struct esas2r_request *)rq);
}
if (off > VDA_MAX_BUFFER_SIZE)
return 0;
if (count + off > VDA_MAX_BUFFER_SIZE)
count = VDA_MAX_BUFFER_SIZE - off;
if (count < 0)
return 0;
memcpy(buf, a->vda_buffer + off, count);
return count;
}
/* Handle a call to write a VDA command. */
int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off,
int count)
{
/*
* allocate memory for it, if not already done. once allocated,
* we will keep it around until the driver is unloaded.
*/
if (!a->vda_buffer) {
dma_addr_t dma_addr;
a->vda_buffer = dma_alloc_coherent(&a->pcid->dev,
(size_t)
VDA_MAX_BUFFER_SIZE,
&dma_addr,
GFP_KERNEL);
a->ppvda_buffer = dma_addr;
}
if (!a->vda_buffer)
return -ENOMEM;
if (off > VDA_MAX_BUFFER_SIZE)
return 0;
if (count + off > VDA_MAX_BUFFER_SIZE)
count = VDA_MAX_BUFFER_SIZE - off;
if (count < 1)
return 0;
memcpy(a->vda_buffer + off, buf, count);
return count;
}
/* Callback for the completion of an FS_API request.*/
static void fs_api_complete_req(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
a->fs_api_command_done = 1;
wake_up_interruptible(&a->fs_api_waiter);
}
/* Scatter/gather callback for VDA requests */
static u32 get_physaddr_fs_api(struct esas2r_sg_context *sgc, u64 *addr)
{
struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter;
struct esas2r_ioctl_fs *fs =
(struct esas2r_ioctl_fs *)a->fs_api_buffer;
u32 offset = (u8 *)sgc->cur_offset - (u8 *)fs;
(*addr) = a->ppfs_api_buffer + offset;
return a->fs_api_buffer_size - offset;
}
/* Handle a call to read firmware via FS_API. */
int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count)
{
if (!a->fs_api_buffer)
return -ENOMEM;
if (off == 0) {
struct esas2r_request *rq;
struct esas2r_sg_context sgc;
struct esas2r_ioctl_fs *fs =
(struct esas2r_ioctl_fs *)a->fs_api_buffer;
/* If another flash request is already in progress, return. */
if (mutex_lock_interruptible(&a->fs_api_mutex)) {
busy:
fs->status = ATTO_STS_OUT_OF_RSRC;
return -EBUSY;
}
/*
* Presumeably, someone has already written to the
* fs_api_buffer, and now they are reading the node the
* response, so now we will actually issue the request to the
* chip and reply. Allocate a request
*/
rq = esas2r_alloc_request(a);
if (rq == NULL) {
esas2r_debug("esas2r_read_fs: out of requests");
mutex_unlock(&a->fs_api_mutex);
goto busy;
}
rq->comp_cb = fs_api_complete_req;
/* Set up the SGCONTEXT for to build the s/g table */
sgc.cur_offset = fs->data;
sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_fs_api;
a->fs_api_command_done = 0;
if (!esas2r_process_fs_ioctl(a, fs, rq, &sgc)) {
if (fs->status == ATTO_STS_OUT_OF_RSRC)
count = -EBUSY;
goto dont_wait;
}
/* Now wait around for it to complete. */
while (!a->fs_api_command_done)
wait_event_interruptible(a->fs_api_waiter,
a->fs_api_command_done);
;
dont_wait:
/* Free the request and keep going */
mutex_unlock(&a->fs_api_mutex);
esas2r_free_request(a, (struct esas2r_request *)rq);
/* Pick up possible error code from above */
if (count < 0)
return count;
}
if (off > a->fs_api_buffer_size)
return 0;
if (count + off > a->fs_api_buffer_size)
count = a->fs_api_buffer_size - off;
if (count < 0)
return 0;
memcpy(buf, a->fs_api_buffer + off, count);
return count;
}
/* Handle a call to write firmware via FS_API. */
int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off,
int count)
{
if (off == 0) {
struct esas2r_ioctl_fs *fs = (struct esas2r_ioctl_fs *)buf;
u32 length = fs->command.length + offsetof(
struct esas2r_ioctl_fs,
data);
/*
* Special case, for BEGIN commands, the length field
* is lying to us, so just get enough for the header.
*/
if (fs->command.command == ESAS2R_FS_CMD_BEGINW)
length = offsetof(struct esas2r_ioctl_fs, data);
/*
* Beginning a command. We assume we'll get at least
* enough in the first write so we can look at the
* header and see how much we need to alloc.
*/
if (count < offsetof(struct esas2r_ioctl_fs, data))
return -EINVAL;
/* Allocate a buffer or use the existing buffer. */
if (a->fs_api_buffer) {
if (a->fs_api_buffer_size < length) {
/* Free too-small buffer and get a new one */
dma_free_coherent(&a->pcid->dev,
(size_t)a->fs_api_buffer_size,
a->fs_api_buffer,
(dma_addr_t)a->ppfs_api_buffer);
goto re_allocate_buffer;
}
} else {
re_allocate_buffer:
a->fs_api_buffer_size = length;
a->fs_api_buffer = dma_alloc_coherent(&a->pcid->dev,
(size_t)a->fs_api_buffer_size,
(dma_addr_t *)&a->ppfs_api_buffer,
GFP_KERNEL);
}
}
if (!a->fs_api_buffer)
return -ENOMEM;
if (off > a->fs_api_buffer_size)
return 0;
if (count + off > a->fs_api_buffer_size)
count = a->fs_api_buffer_size - off;
if (count < 1)
return 0;
memcpy(a->fs_api_buffer + off, buf, count);
return count;
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_ioctl.c
|
/*
* linux/drivers/scsi/esas2r/esas2r_vda.c
* esas2r driver VDA firmware interface functions
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:[email protected])
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#include "esas2r.h"
static u8 esas2r_vdaioctl_versions[] = {
ATTO_VDA_VER_UNSUPPORTED,
ATTO_VDA_FLASH_VER,
ATTO_VDA_VER_UNSUPPORTED,
ATTO_VDA_VER_UNSUPPORTED,
ATTO_VDA_CLI_VER,
ATTO_VDA_VER_UNSUPPORTED,
ATTO_VDA_CFG_VER,
ATTO_VDA_MGT_VER,
ATTO_VDA_GSV_VER
};
static void clear_vda_request(struct esas2r_request *rq);
static void esas2r_complete_vda_ioctl(struct esas2r_adapter *a,
struct esas2r_request *rq);
/* Prepare a VDA IOCTL request to be sent to the firmware. */
bool esas2r_process_vda_ioctl(struct esas2r_adapter *a,
struct atto_ioctl_vda *vi,
struct esas2r_request *rq,
struct esas2r_sg_context *sgc)
{
u32 datalen = 0;
struct atto_vda_sge *firstsg = NULL;
u8 vercnt = (u8)ARRAY_SIZE(esas2r_vdaioctl_versions);
vi->status = ATTO_STS_SUCCESS;
vi->vda_status = RS_PENDING;
if (vi->function >= vercnt) {
vi->status = ATTO_STS_INV_FUNC;
return false;
}
if (vi->version > esas2r_vdaioctl_versions[vi->function]) {
vi->status = ATTO_STS_INV_VERSION;
return false;
}
if (test_bit(AF_DEGRADED_MODE, &a->flags)) {
vi->status = ATTO_STS_DEGRADED;
return false;
}
if (vi->function != VDA_FUNC_SCSI)
clear_vda_request(rq);
rq->vrq->scsi.function = vi->function;
rq->interrupt_cb = esas2r_complete_vda_ioctl;
rq->interrupt_cx = vi;
switch (vi->function) {
case VDA_FUNC_FLASH:
if (vi->cmd.flash.sub_func != VDA_FLASH_FREAD
&& vi->cmd.flash.sub_func != VDA_FLASH_FWRITE
&& vi->cmd.flash.sub_func != VDA_FLASH_FINFO) {
vi->status = ATTO_STS_INV_FUNC;
return false;
}
if (vi->cmd.flash.sub_func != VDA_FLASH_FINFO)
datalen = vi->data_length;
rq->vrq->flash.length = cpu_to_le32(datalen);
rq->vrq->flash.sub_func = vi->cmd.flash.sub_func;
memcpy(rq->vrq->flash.data.file.file_name,
vi->cmd.flash.data.file.file_name,
sizeof(vi->cmd.flash.data.file.file_name));
firstsg = rq->vrq->flash.data.file.sge;
break;
case VDA_FUNC_CLI:
datalen = vi->data_length;
rq->vrq->cli.cmd_rsp_len =
cpu_to_le32(vi->cmd.cli.cmd_rsp_len);
rq->vrq->cli.length = cpu_to_le32(datalen);
firstsg = rq->vrq->cli.sge;
break;
case VDA_FUNC_MGT:
{
u8 *cmdcurr_offset = sgc->cur_offset
- offsetof(struct atto_ioctl_vda, data)
+ offsetof(struct atto_ioctl_vda, cmd)
+ offsetof(struct atto_ioctl_vda_mgt_cmd,
data);
/*
* build the data payload SGL here first since
* esas2r_sgc_init() will modify the S/G list offset for the
* management SGL (which is built below where the data SGL is
* usually built).
*/
if (vi->data_length) {
u32 payldlen = 0;
if (vi->cmd.mgt.mgt_func == VDAMGT_DEV_HEALTH_REQ
|| vi->cmd.mgt.mgt_func == VDAMGT_DEV_METRICS) {
rq->vrq->mgt.payld_sglst_offset =
(u8)offsetof(struct atto_vda_mgmt_req,
payld_sge);
payldlen = vi->data_length;
datalen = vi->cmd.mgt.data_length;
} else if (vi->cmd.mgt.mgt_func == VDAMGT_DEV_INFO2
|| vi->cmd.mgt.mgt_func ==
VDAMGT_DEV_INFO2_BYADDR) {
datalen = vi->data_length;
cmdcurr_offset = sgc->cur_offset;
} else {
vi->status = ATTO_STS_INV_PARAM;
return false;
}
/* Setup the length so building the payload SGL works */
rq->vrq->mgt.length = cpu_to_le32(datalen);
if (payldlen) {
rq->vrq->mgt.payld_length =
cpu_to_le32(payldlen);
esas2r_sgc_init(sgc, a, rq,
rq->vrq->mgt.payld_sge);
sgc->length = payldlen;
if (!esas2r_build_sg_list(a, rq, sgc)) {
vi->status = ATTO_STS_OUT_OF_RSRC;
return false;
}
}
} else {
datalen = vi->cmd.mgt.data_length;
rq->vrq->mgt.length = cpu_to_le32(datalen);
}
/*
* Now that the payload SGL is built, if any, setup to build
* the management SGL.
*/
firstsg = rq->vrq->mgt.sge;
sgc->cur_offset = cmdcurr_offset;
/* Finish initializing the management request. */
rq->vrq->mgt.mgt_func = vi->cmd.mgt.mgt_func;
rq->vrq->mgt.scan_generation = vi->cmd.mgt.scan_generation;
rq->vrq->mgt.dev_index =
cpu_to_le32(vi->cmd.mgt.dev_index);
esas2r_nuxi_mgt_data(rq->vrq->mgt.mgt_func, &vi->cmd.mgt.data);
break;
}
case VDA_FUNC_CFG:
if (vi->data_length
|| vi->cmd.cfg.data_length == 0) {
vi->status = ATTO_STS_INV_PARAM;
return false;
}
if (vi->cmd.cfg.cfg_func == VDA_CFG_INIT) {
vi->status = ATTO_STS_INV_FUNC;
return false;
}
rq->vrq->cfg.sub_func = vi->cmd.cfg.cfg_func;
rq->vrq->cfg.length = cpu_to_le32(vi->cmd.cfg.data_length);
if (vi->cmd.cfg.cfg_func == VDA_CFG_GET_INIT) {
memcpy(&rq->vrq->cfg.data,
&vi->cmd.cfg.data,
vi->cmd.cfg.data_length);
esas2r_nuxi_cfg_data(rq->vrq->cfg.sub_func,
&rq->vrq->cfg.data);
} else {
vi->status = ATTO_STS_INV_FUNC;
return false;
}
break;
case VDA_FUNC_GSV:
vi->cmd.gsv.rsp_len = vercnt;
memcpy(vi->cmd.gsv.version_info, esas2r_vdaioctl_versions,
vercnt);
vi->vda_status = RS_SUCCESS;
break;
default:
vi->status = ATTO_STS_INV_FUNC;
return false;
}
if (datalen) {
esas2r_sgc_init(sgc, a, rq, firstsg);
sgc->length = datalen;
if (!esas2r_build_sg_list(a, rq, sgc)) {
vi->status = ATTO_STS_OUT_OF_RSRC;
return false;
}
}
esas2r_start_request(a, rq);
return true;
}
static void esas2r_complete_vda_ioctl(struct esas2r_adapter *a,
struct esas2r_request *rq)
{
struct atto_ioctl_vda *vi = (struct atto_ioctl_vda *)rq->interrupt_cx;
vi->vda_status = rq->req_stat;
switch (vi->function) {
case VDA_FUNC_FLASH:
if (vi->cmd.flash.sub_func == VDA_FLASH_FINFO
|| vi->cmd.flash.sub_func == VDA_FLASH_FREAD)
vi->cmd.flash.data.file.file_size =
le32_to_cpu(rq->func_rsp.flash_rsp.file_size);
break;
case VDA_FUNC_MGT:
vi->cmd.mgt.scan_generation =
rq->func_rsp.mgt_rsp.scan_generation;
vi->cmd.mgt.dev_index = le16_to_cpu(
rq->func_rsp.mgt_rsp.dev_index);
if (vi->data_length == 0)
vi->cmd.mgt.data_length =
le32_to_cpu(rq->func_rsp.mgt_rsp.length);
esas2r_nuxi_mgt_data(rq->vrq->mgt.mgt_func, &vi->cmd.mgt.data);
break;
case VDA_FUNC_CFG:
if (vi->cmd.cfg.cfg_func == VDA_CFG_GET_INIT) {
struct atto_ioctl_vda_cfg_cmd *cfg = &vi->cmd.cfg;
struct atto_vda_cfg_rsp *rsp = &rq->func_rsp.cfg_rsp;
char buf[sizeof(cfg->data.init.fw_release) + 1];
cfg->data_length =
cpu_to_le32(sizeof(struct atto_vda_cfg_init));
cfg->data.init.vda_version =
le32_to_cpu(rsp->vda_version);
cfg->data.init.fw_build = rsp->fw_build;
snprintf(buf, sizeof(buf), "%1.1u.%2.2u",
(int)LOBYTE(le16_to_cpu(rsp->fw_release)),
(int)HIBYTE(le16_to_cpu(rsp->fw_release)));
memcpy(&cfg->data.init.fw_release, buf,
sizeof(cfg->data.init.fw_release));
if (LOWORD(LOBYTE(cfg->data.init.fw_build)) == 'A')
cfg->data.init.fw_version =
cfg->data.init.fw_build;
else
cfg->data.init.fw_version =
cfg->data.init.fw_release;
} else {
esas2r_nuxi_cfg_data(rq->vrq->cfg.sub_func,
&vi->cmd.cfg.data);
}
break;
case VDA_FUNC_CLI:
vi->cmd.cli.cmd_rsp_len =
le32_to_cpu(rq->func_rsp.cli_rsp.cmd_rsp_len);
break;
default:
break;
}
}
/* Build a flash VDA request. */
void esas2r_build_flash_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u8 sub_func,
u8 cksum,
u32 addr,
u32 length)
{
struct atto_vda_flash_req *vrq = &rq->vrq->flash;
clear_vda_request(rq);
rq->vrq->scsi.function = VDA_FUNC_FLASH;
if (sub_func == VDA_FLASH_BEGINW
|| sub_func == VDA_FLASH_WRITE
|| sub_func == VDA_FLASH_READ)
vrq->sg_list_offset = (u8)offsetof(struct atto_vda_flash_req,
data.sge);
vrq->length = cpu_to_le32(length);
vrq->flash_addr = cpu_to_le32(addr);
vrq->checksum = cksum;
vrq->sub_func = sub_func;
}
/* Build a VDA management request. */
void esas2r_build_mgt_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u8 sub_func,
u8 scan_gen,
u16 dev_index,
u32 length,
void *data)
{
struct atto_vda_mgmt_req *vrq = &rq->vrq->mgt;
clear_vda_request(rq);
rq->vrq->scsi.function = VDA_FUNC_MGT;
vrq->mgt_func = sub_func;
vrq->scan_generation = scan_gen;
vrq->dev_index = cpu_to_le16(dev_index);
vrq->length = cpu_to_le32(length);
if (vrq->length) {
if (test_bit(AF_LEGACY_SGE_MODE, &a->flags)) {
vrq->sg_list_offset = (u8)offsetof(
struct atto_vda_mgmt_req, sge);
vrq->sge[0].length = cpu_to_le32(SGE_LAST | length);
vrq->sge[0].address = cpu_to_le64(
rq->vrq_md->phys_addr +
sizeof(union atto_vda_req));
} else {
vrq->sg_list_offset = (u8)offsetof(
struct atto_vda_mgmt_req, prde);
vrq->prde[0].ctl_len = cpu_to_le32(length);
vrq->prde[0].address = cpu_to_le64(
rq->vrq_md->phys_addr +
sizeof(union atto_vda_req));
}
}
if (data) {
esas2r_nuxi_mgt_data(sub_func, data);
memcpy(&rq->vda_rsp_data->mgt_data.data.bytes[0], data,
length);
}
}
/* Build a VDA asyncronous event (AE) request. */
void esas2r_build_ae_req(struct esas2r_adapter *a, struct esas2r_request *rq)
{
struct atto_vda_ae_req *vrq = &rq->vrq->ae;
clear_vda_request(rq);
rq->vrq->scsi.function = VDA_FUNC_AE;
vrq->length = cpu_to_le32(sizeof(struct atto_vda_ae_data));
if (test_bit(AF_LEGACY_SGE_MODE, &a->flags)) {
vrq->sg_list_offset =
(u8)offsetof(struct atto_vda_ae_req, sge);
vrq->sge[0].length = cpu_to_le32(SGE_LAST | vrq->length);
vrq->sge[0].address = cpu_to_le64(
rq->vrq_md->phys_addr +
sizeof(union atto_vda_req));
} else {
vrq->sg_list_offset = (u8)offsetof(struct atto_vda_ae_req,
prde);
vrq->prde[0].ctl_len = cpu_to_le32(vrq->length);
vrq->prde[0].address = cpu_to_le64(
rq->vrq_md->phys_addr +
sizeof(union atto_vda_req));
}
}
/* Build a VDA CLI request. */
void esas2r_build_cli_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u32 length,
u32 cmd_rsp_len)
{
struct atto_vda_cli_req *vrq = &rq->vrq->cli;
clear_vda_request(rq);
rq->vrq->scsi.function = VDA_FUNC_CLI;
vrq->length = cpu_to_le32(length);
vrq->cmd_rsp_len = cpu_to_le32(cmd_rsp_len);
vrq->sg_list_offset = (u8)offsetof(struct atto_vda_cli_req, sge);
}
/* Build a VDA IOCTL request. */
void esas2r_build_ioctl_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u32 length,
u8 sub_func)
{
struct atto_vda_ioctl_req *vrq = &rq->vrq->ioctl;
clear_vda_request(rq);
rq->vrq->scsi.function = VDA_FUNC_IOCTL;
vrq->length = cpu_to_le32(length);
vrq->sub_func = sub_func;
vrq->sg_list_offset = (u8)offsetof(struct atto_vda_ioctl_req, sge);
}
/* Build a VDA configuration request. */
void esas2r_build_cfg_req(struct esas2r_adapter *a,
struct esas2r_request *rq,
u8 sub_func,
u32 length,
void *data)
{
struct atto_vda_cfg_req *vrq = &rq->vrq->cfg;
clear_vda_request(rq);
rq->vrq->scsi.function = VDA_FUNC_CFG;
vrq->sub_func = sub_func;
vrq->length = cpu_to_le32(length);
if (data) {
esas2r_nuxi_cfg_data(sub_func, data);
memcpy(&vrq->data, data, length);
}
}
static void clear_vda_request(struct esas2r_request *rq)
{
u32 handle = rq->vrq->scsi.handle;
memset(rq->vrq, 0, sizeof(*rq->vrq));
rq->vrq->scsi.handle = handle;
rq->req_stat = RS_PENDING;
/* since the data buffer is separate clear that too */
memset(rq->data_buf, 0, ESAS2R_DATA_BUF_LEN);
/*
* Setup next and prev pointer in case the request is not going through
* esas2r_start_request().
*/
INIT_LIST_HEAD(&rq->req_list);
}
|
linux-master
|
drivers/scsi/esas2r/esas2r_vda.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/lockdep.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include <linux/crash_dump.h>
#ifdef CONFIG_X86
#include <asm/set_memory.h>
#endif
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
#include "lpfc_crtn.h"
#include "lpfc_logmsg.h"
#include "lpfc_compat.h"
#include "lpfc_debugfs.h"
#include "lpfc_vport.h"
#include "lpfc_version.h"
/* There are only four IOCB completion types. */
typedef enum _lpfc_iocb_type {
LPFC_UNKNOWN_IOCB,
LPFC_UNSOL_IOCB,
LPFC_SOL_IOCB,
LPFC_ABORT_IOCB
} lpfc_iocb_type;
/* Provide function prototypes local to this module. */
static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
uint32_t);
static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
uint8_t *, uint32_t *);
static struct lpfc_iocbq *
lpfc_sli4_els_preprocess_rspiocbq(struct lpfc_hba *phba,
struct lpfc_iocbq *rspiocbq);
static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
struct hbq_dmabuf *);
static void lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
struct hbq_dmabuf *dmabuf);
static bool lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba,
struct lpfc_queue *cq, struct lpfc_cqe *cqe);
static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
int);
static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba,
struct lpfc_queue *eq,
struct lpfc_eqe *eqe,
enum lpfc_poll_mode poll_mode);
static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
static struct lpfc_cqe *lpfc_sli4_cq_get(struct lpfc_queue *q);
static void __lpfc_sli4_consume_cqe(struct lpfc_hba *phba,
struct lpfc_queue *cq,
struct lpfc_cqe *cqe);
static uint16_t lpfc_wqe_bpl2sgl(struct lpfc_hba *phba,
struct lpfc_iocbq *pwqeq,
struct lpfc_sglq *sglq);
union lpfc_wqe128 lpfc_iread_cmd_template;
union lpfc_wqe128 lpfc_iwrite_cmd_template;
union lpfc_wqe128 lpfc_icmnd_cmd_template;
/* Setup WQE templates for IOs */
void lpfc_wqe_cmd_template(void)
{
union lpfc_wqe128 *wqe;
/* IREAD template */
wqe = &lpfc_iread_cmd_template;
memset(wqe, 0, sizeof(union lpfc_wqe128));
/* Word 0, 1, 2 - BDE is variable */
/* Word 3 - cmd_buff_len, payload_offset_len is zero */
/* Word 4 - total_xfer_len is variable */
/* Word 5 - is zero */
/* Word 6 - ctxt_tag, xri_tag is variable */
/* Word 7 */
bf_set(wqe_cmnd, &wqe->fcp_iread.wqe_com, CMD_FCP_IREAD64_WQE);
bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, PARM_READ_CHECK);
bf_set(wqe_class, &wqe->fcp_iread.wqe_com, CLASS3);
bf_set(wqe_ct, &wqe->fcp_iread.wqe_com, SLI4_CT_RPI);
/* Word 8 - abort_tag is variable */
/* Word 9 - reqtag is variable */
/* Word 10 - dbde, wqes is variable */
bf_set(wqe_qosd, &wqe->fcp_iread.wqe_com, 0);
bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com, LPFC_WQE_LENLOC_WORD4);
bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
/* Word 11 - pbde is variable */
bf_set(wqe_cmd_type, &wqe->fcp_iread.wqe_com, COMMAND_DATA_IN);
bf_set(wqe_cqid, &wqe->fcp_iread.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
/* Word 12 - is zero */
/* Word 13, 14, 15 - PBDE is variable */
/* IWRITE template */
wqe = &lpfc_iwrite_cmd_template;
memset(wqe, 0, sizeof(union lpfc_wqe128));
/* Word 0, 1, 2 - BDE is variable */
/* Word 3 - cmd_buff_len, payload_offset_len is zero */
/* Word 4 - total_xfer_len is variable */
/* Word 5 - initial_xfer_len is variable */
/* Word 6 - ctxt_tag, xri_tag is variable */
/* Word 7 */
bf_set(wqe_cmnd, &wqe->fcp_iwrite.wqe_com, CMD_FCP_IWRITE64_WQE);
bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, PARM_READ_CHECK);
bf_set(wqe_class, &wqe->fcp_iwrite.wqe_com, CLASS3);
bf_set(wqe_ct, &wqe->fcp_iwrite.wqe_com, SLI4_CT_RPI);
/* Word 8 - abort_tag is variable */
/* Word 9 - reqtag is variable */
/* Word 10 - dbde, wqes is variable */
bf_set(wqe_qosd, &wqe->fcp_iwrite.wqe_com, 0);
bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_LENLOC_WORD4);
bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
/* Word 11 - pbde is variable */
bf_set(wqe_cmd_type, &wqe->fcp_iwrite.wqe_com, COMMAND_DATA_OUT);
bf_set(wqe_cqid, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
/* Word 12 - is zero */
/* Word 13, 14, 15 - PBDE is variable */
/* ICMND template */
wqe = &lpfc_icmnd_cmd_template;
memset(wqe, 0, sizeof(union lpfc_wqe128));
/* Word 0, 1, 2 - BDE is variable */
/* Word 3 - payload_offset_len is variable */
/* Word 4, 5 - is zero */
/* Word 6 - ctxt_tag, xri_tag is variable */
/* Word 7 */
bf_set(wqe_cmnd, &wqe->fcp_icmd.wqe_com, CMD_FCP_ICMND64_WQE);
bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
bf_set(wqe_class, &wqe->fcp_icmd.wqe_com, CLASS3);
bf_set(wqe_ct, &wqe->fcp_icmd.wqe_com, SLI4_CT_RPI);
/* Word 8 - abort_tag is variable */
/* Word 9 - reqtag is variable */
/* Word 10 - dbde, wqes is variable */
bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_NONE);
bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com, LPFC_WQE_LENLOC_NONE);
bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
/* Word 11 */
bf_set(wqe_cmd_type, &wqe->fcp_icmd.wqe_com, COMMAND_DATA_IN);
bf_set(wqe_cqid, &wqe->fcp_icmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_pbde, &wqe->fcp_icmd.wqe_com, 0);
/* Word 12, 13, 14, 15 - is zero */
}
#if defined(CONFIG_64BIT) && defined(__LITTLE_ENDIAN)
/**
* lpfc_sli4_pcimem_bcopy - SLI4 memory copy function
* @srcp: Source memory pointer.
* @destp: Destination memory pointer.
* @cnt: Number of words required to be copied.
* Must be a multiple of sizeof(uint64_t)
*
* This function is used for copying data between driver memory
* and the SLI WQ. This function also changes the endianness
* of each word if native endianness is different from SLI
* endianness. This function can be called with or without
* lock.
**/
static void
lpfc_sli4_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
{
uint64_t *src = srcp;
uint64_t *dest = destp;
int i;
for (i = 0; i < (int)cnt; i += sizeof(uint64_t))
*dest++ = *src++;
}
#else
#define lpfc_sli4_pcimem_bcopy(a, b, c) lpfc_sli_pcimem_bcopy(a, b, c)
#endif
/**
* lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
* @q: The Work Queue to operate on.
* @wqe: The work Queue Entry to put on the Work queue.
*
* This routine will copy the contents of @wqe to the next available entry on
* the @q. This function will then ring the Work Queue Doorbell to signal the
* HBA to start processing the Work Queue Entry. This function returns 0 if
* successful. If no entries are available on @q then this function will return
* -ENOMEM.
* The caller is expected to hold the hbalock when calling this routine.
**/
static int
lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe128 *wqe)
{
union lpfc_wqe *temp_wqe;
struct lpfc_register doorbell;
uint32_t host_index;
uint32_t idx;
uint32_t i = 0;
uint8_t *tmp;
u32 if_type;
/* sanity check on queue memory */
if (unlikely(!q))
return -ENOMEM;
temp_wqe = lpfc_sli4_qe(q, q->host_index);
/* If the host has not yet processed the next entry then we are done */
idx = ((q->host_index + 1) % q->entry_count);
if (idx == q->hba_index) {
q->WQ_overflow++;
return -EBUSY;
}
q->WQ_posted++;
/* set consumption flag every once in a while */
if (!((q->host_index + 1) % q->notify_interval))
bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
else
bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
lpfc_sli4_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
if (q->dpp_enable && q->phba->cfg_enable_dpp) {
/* write to DPP aperture taking advatage of Combined Writes */
tmp = (uint8_t *)temp_wqe;
#ifdef __raw_writeq
for (i = 0; i < q->entry_size; i += sizeof(uint64_t))
__raw_writeq(*((uint64_t *)(tmp + i)),
q->dpp_regaddr + i);
#else
for (i = 0; i < q->entry_size; i += sizeof(uint32_t))
__raw_writel(*((uint32_t *)(tmp + i)),
q->dpp_regaddr + i);
#endif
}
/* ensure WQE bcopy and DPP flushed before doorbell write */
wmb();
/* Update the host index before invoking device */
host_index = q->host_index;
q->host_index = idx;
/* Ring Doorbell */
doorbell.word0 = 0;
if (q->db_format == LPFC_DB_LIST_FORMAT) {
if (q->dpp_enable && q->phba->cfg_enable_dpp) {
bf_set(lpfc_if6_wq_db_list_fm_num_posted, &doorbell, 1);
bf_set(lpfc_if6_wq_db_list_fm_dpp, &doorbell, 1);
bf_set(lpfc_if6_wq_db_list_fm_dpp_id, &doorbell,
q->dpp_id);
bf_set(lpfc_if6_wq_db_list_fm_id, &doorbell,
q->queue_id);
} else {
bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
/* Leave bits <23:16> clear for if_type 6 dpp */
if_type = bf_get(lpfc_sli_intf_if_type,
&q->phba->sli4_hba.sli_intf);
if (if_type != LPFC_SLI_INTF_IF_TYPE_6)
bf_set(lpfc_wq_db_list_fm_index, &doorbell,
host_index);
}
} else if (q->db_format == LPFC_DB_RING_FORMAT) {
bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
} else {
return -EINVAL;
}
writel(doorbell.word0, q->db_regaddr);
return 0;
}
/**
* lpfc_sli4_wq_release - Updates internal hba index for WQ
* @q: The Work Queue to operate on.
* @index: The index to advance the hba index to.
*
* This routine will update the HBA index of a queue to reflect consumption of
* Work Queue Entries by the HBA. When the HBA indicates that it has consumed
* an entry the host calls this function to update the queue's internal
* pointers.
**/
static void
lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
{
/* sanity check on queue memory */
if (unlikely(!q))
return;
q->hba_index = index;
}
/**
* lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
* @q: The Mailbox Queue to operate on.
* @mqe: The Mailbox Queue Entry to put on the Work queue.
*
* This routine will copy the contents of @mqe to the next available entry on
* the @q. This function will then ring the Work Queue Doorbell to signal the
* HBA to start processing the Work Queue Entry. This function returns 0 if
* successful. If no entries are available on @q then this function will return
* -ENOMEM.
* The caller is expected to hold the hbalock when calling this routine.
**/
static uint32_t
lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
{
struct lpfc_mqe *temp_mqe;
struct lpfc_register doorbell;
/* sanity check on queue memory */
if (unlikely(!q))
return -ENOMEM;
temp_mqe = lpfc_sli4_qe(q, q->host_index);
/* If the host has not yet processed the next entry then we are done */
if (((q->host_index + 1) % q->entry_count) == q->hba_index)
return -ENOMEM;
lpfc_sli4_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
/* Save off the mailbox pointer for completion */
q->phba->mbox = (MAILBOX_t *)temp_mqe;
/* Update the host index before invoking device */
q->host_index = ((q->host_index + 1) % q->entry_count);
/* Ring Doorbell */
doorbell.word0 = 0;
bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
return 0;
}
/**
* lpfc_sli4_mq_release - Updates internal hba index for MQ
* @q: The Mailbox Queue to operate on.
*
* This routine will update the HBA index of a queue to reflect consumption of
* a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
* an entry the host calls this function to update the queue's internal
* pointers. This routine returns the number of entries that were consumed by
* the HBA.
**/
static uint32_t
lpfc_sli4_mq_release(struct lpfc_queue *q)
{
/* sanity check on queue memory */
if (unlikely(!q))
return 0;
/* Clear the mailbox pointer for completion */
q->phba->mbox = NULL;
q->hba_index = ((q->hba_index + 1) % q->entry_count);
return 1;
}
/**
* lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
* @q: The Event Queue to get the first valid EQE from
*
* This routine will get the first valid Event Queue Entry from @q, update
* the queue's internal hba index, and return the EQE. If no valid EQEs are in
* the Queue (no more work to do), or the Queue is full of EQEs that have been
* processed, but not popped back to the HBA then this routine will return NULL.
**/
static struct lpfc_eqe *
lpfc_sli4_eq_get(struct lpfc_queue *q)
{
struct lpfc_eqe *eqe;
/* sanity check on queue memory */
if (unlikely(!q))
return NULL;
eqe = lpfc_sli4_qe(q, q->host_index);
/* If the next EQE is not valid then we are done */
if (bf_get_le32(lpfc_eqe_valid, eqe) != q->qe_valid)
return NULL;
/*
* insert barrier for instruction interlock : data from the hardware
* must have the valid bit checked before it can be copied and acted
* upon. Speculative instructions were allowing a bcopy at the start
* of lpfc_sli4_fp_handle_wcqe(), which is called immediately
* after our return, to copy data before the valid bit check above
* was done. As such, some of the copied data was stale. The barrier
* ensures the check is before any data is copied.
*/
mb();
return eqe;
}
/**
* lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
* @q: The Event Queue to disable interrupts
*
**/
void
lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
{
struct lpfc_register doorbell;
doorbell.word0 = 0;
bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
(q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
}
/**
* lpfc_sli4_if6_eq_clr_intr - Turn off interrupts from this EQ
* @q: The Event Queue to disable interrupts
*
**/
void
lpfc_sli4_if6_eq_clr_intr(struct lpfc_queue *q)
{
struct lpfc_register doorbell;
doorbell.word0 = 0;
bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
}
/**
* lpfc_sli4_write_eq_db - write EQ DB for eqe's consumed or arm state
* @phba: adapter with EQ
* @q: The Event Queue that the host has completed processing for.
* @count: Number of elements that have been consumed
* @arm: Indicates whether the host wants to arms this CQ.
*
* This routine will notify the HBA, by ringing the doorbell, that count
* number of EQEs have been processed. The @arm parameter indicates whether
* the queue should be rearmed when ringing the doorbell.
**/
void
lpfc_sli4_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
uint32_t count, bool arm)
{
struct lpfc_register doorbell;
/* sanity check on queue memory */
if (unlikely(!q || (count == 0 && !arm)))
return;
/* ring doorbell for number popped */
doorbell.word0 = 0;
if (arm) {
bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
}
bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
(q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
/* PCI read to flush PCI pipeline on re-arming for INTx mode */
if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
readl(q->phba->sli4_hba.EQDBregaddr);
}
/**
* lpfc_sli4_if6_write_eq_db - write EQ DB for eqe's consumed or arm state
* @phba: adapter with EQ
* @q: The Event Queue that the host has completed processing for.
* @count: Number of elements that have been consumed
* @arm: Indicates whether the host wants to arms this CQ.
*
* This routine will notify the HBA, by ringing the doorbell, that count
* number of EQEs have been processed. The @arm parameter indicates whether
* the queue should be rearmed when ringing the doorbell.
**/
void
lpfc_sli4_if6_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
uint32_t count, bool arm)
{
struct lpfc_register doorbell;
/* sanity check on queue memory */
if (unlikely(!q || (count == 0 && !arm)))
return;
/* ring doorbell for number popped */
doorbell.word0 = 0;
if (arm)
bf_set(lpfc_if6_eq_doorbell_arm, &doorbell, 1);
bf_set(lpfc_if6_eq_doorbell_num_released, &doorbell, count);
bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
/* PCI read to flush PCI pipeline on re-arming for INTx mode */
if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
readl(q->phba->sli4_hba.EQDBregaddr);
}
static void
__lpfc_sli4_consume_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
struct lpfc_eqe *eqe)
{
if (!phba->sli4_hba.pc_sli4_params.eqav)
bf_set_le32(lpfc_eqe_valid, eqe, 0);
eq->host_index = ((eq->host_index + 1) % eq->entry_count);
/* if the index wrapped around, toggle the valid bit */
if (phba->sli4_hba.pc_sli4_params.eqav && !eq->host_index)
eq->qe_valid = (eq->qe_valid) ? 0 : 1;
}
static void
lpfc_sli4_eqcq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
{
struct lpfc_eqe *eqe = NULL;
u32 eq_count = 0, cq_count = 0;
struct lpfc_cqe *cqe = NULL;
struct lpfc_queue *cq = NULL, *childq = NULL;
int cqid = 0;
/* walk all the EQ entries and drop on the floor */
eqe = lpfc_sli4_eq_get(eq);
while (eqe) {
/* Get the reference to the corresponding CQ */
cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
cq = NULL;
list_for_each_entry(childq, &eq->child_list, list) {
if (childq->queue_id == cqid) {
cq = childq;
break;
}
}
/* If CQ is valid, iterate through it and drop all the CQEs */
if (cq) {
cqe = lpfc_sli4_cq_get(cq);
while (cqe) {
__lpfc_sli4_consume_cqe(phba, cq, cqe);
cq_count++;
cqe = lpfc_sli4_cq_get(cq);
}
/* Clear and re-arm the CQ */
phba->sli4_hba.sli4_write_cq_db(phba, cq, cq_count,
LPFC_QUEUE_REARM);
cq_count = 0;
}
__lpfc_sli4_consume_eqe(phba, eq, eqe);
eq_count++;
eqe = lpfc_sli4_eq_get(eq);
}
/* Clear and re-arm the EQ */
phba->sli4_hba.sli4_write_eq_db(phba, eq, eq_count, LPFC_QUEUE_REARM);
}
static int
lpfc_sli4_process_eq(struct lpfc_hba *phba, struct lpfc_queue *eq,
u8 rearm, enum lpfc_poll_mode poll_mode)
{
struct lpfc_eqe *eqe;
int count = 0, consumed = 0;
if (cmpxchg(&eq->queue_claimed, 0, 1) != 0)
goto rearm_and_exit;
eqe = lpfc_sli4_eq_get(eq);
while (eqe) {
lpfc_sli4_hba_handle_eqe(phba, eq, eqe, poll_mode);
__lpfc_sli4_consume_eqe(phba, eq, eqe);
consumed++;
if (!(++count % eq->max_proc_limit))
break;
if (!(count % eq->notify_interval)) {
phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed,
LPFC_QUEUE_NOARM);
consumed = 0;
}
eqe = lpfc_sli4_eq_get(eq);
}
eq->EQ_processed += count;
/* Track the max number of EQEs processed in 1 intr */
if (count > eq->EQ_max_eqe)
eq->EQ_max_eqe = count;
xchg(&eq->queue_claimed, 0);
rearm_and_exit:
/* Always clear the EQ. */
phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed, rearm);
return count;
}
/**
* lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
* @q: The Completion Queue to get the first valid CQE from
*
* This routine will get the first valid Completion Queue Entry from @q, update
* the queue's internal hba index, and return the CQE. If no valid CQEs are in
* the Queue (no more work to do), or the Queue is full of CQEs that have been
* processed, but not popped back to the HBA then this routine will return NULL.
**/
static struct lpfc_cqe *
lpfc_sli4_cq_get(struct lpfc_queue *q)
{
struct lpfc_cqe *cqe;
/* sanity check on queue memory */
if (unlikely(!q))
return NULL;
cqe = lpfc_sli4_qe(q, q->host_index);
/* If the next CQE is not valid then we are done */
if (bf_get_le32(lpfc_cqe_valid, cqe) != q->qe_valid)
return NULL;
/*
* insert barrier for instruction interlock : data from the hardware
* must have the valid bit checked before it can be copied and acted
* upon. Given what was seen in lpfc_sli4_cq_get() of speculative
* instructions allowing action on content before valid bit checked,
* add barrier here as well. May not be needed as "content" is a
* single 32-bit entity here (vs multi word structure for cq's).
*/
mb();
return cqe;
}
static void
__lpfc_sli4_consume_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_cqe *cqe)
{
if (!phba->sli4_hba.pc_sli4_params.cqav)
bf_set_le32(lpfc_cqe_valid, cqe, 0);
cq->host_index = ((cq->host_index + 1) % cq->entry_count);
/* if the index wrapped around, toggle the valid bit */
if (phba->sli4_hba.pc_sli4_params.cqav && !cq->host_index)
cq->qe_valid = (cq->qe_valid) ? 0 : 1;
}
/**
* lpfc_sli4_write_cq_db - write cq DB for entries consumed or arm state.
* @phba: the adapter with the CQ
* @q: The Completion Queue that the host has completed processing for.
* @count: the number of elements that were consumed
* @arm: Indicates whether the host wants to arms this CQ.
*
* This routine will notify the HBA, by ringing the doorbell, that the
* CQEs have been processed. The @arm parameter specifies whether the
* queue should be rearmed when ringing the doorbell.
**/
void
lpfc_sli4_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
uint32_t count, bool arm)
{
struct lpfc_register doorbell;
/* sanity check on queue memory */
if (unlikely(!q || (count == 0 && !arm)))
return;
/* ring doorbell for number popped */
doorbell.word0 = 0;
if (arm)
bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
(q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
}
/**
* lpfc_sli4_if6_write_cq_db - write cq DB for entries consumed or arm state.
* @phba: the adapter with the CQ
* @q: The Completion Queue that the host has completed processing for.
* @count: the number of elements that were consumed
* @arm: Indicates whether the host wants to arms this CQ.
*
* This routine will notify the HBA, by ringing the doorbell, that the
* CQEs have been processed. The @arm parameter specifies whether the
* queue should be rearmed when ringing the doorbell.
**/
void
lpfc_sli4_if6_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
uint32_t count, bool arm)
{
struct lpfc_register doorbell;
/* sanity check on queue memory */
if (unlikely(!q || (count == 0 && !arm)))
return;
/* ring doorbell for number popped */
doorbell.word0 = 0;
if (arm)
bf_set(lpfc_if6_cq_doorbell_arm, &doorbell, 1);
bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, count);
bf_set(lpfc_if6_cq_doorbell_cqid, &doorbell, q->queue_id);
writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
}
/*
* lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
*
* This routine will copy the contents of @wqe to the next available entry on
* the @q. This function will then ring the Receive Queue Doorbell to signal the
* HBA to start processing the Receive Queue Entry. This function returns the
* index that the rqe was copied to if successful. If no entries are available
* on @q then this function will return -ENOMEM.
* The caller is expected to hold the hbalock when calling this routine.
**/
int
lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
{
struct lpfc_rqe *temp_hrqe;
struct lpfc_rqe *temp_drqe;
struct lpfc_register doorbell;
int hq_put_index;
int dq_put_index;
/* sanity check on queue memory */
if (unlikely(!hq) || unlikely(!dq))
return -ENOMEM;
hq_put_index = hq->host_index;
dq_put_index = dq->host_index;
temp_hrqe = lpfc_sli4_qe(hq, hq_put_index);
temp_drqe = lpfc_sli4_qe(dq, dq_put_index);
if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
return -EINVAL;
if (hq_put_index != dq_put_index)
return -EINVAL;
/* If the host has not yet processed the next entry then we are done */
if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
return -EBUSY;
lpfc_sli4_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
lpfc_sli4_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
/* Update the host index to point to the next slot */
hq->host_index = ((hq_put_index + 1) % hq->entry_count);
dq->host_index = ((dq_put_index + 1) % dq->entry_count);
hq->RQ_buf_posted++;
/* Ring The Header Receive Queue Doorbell */
if (!(hq->host_index % hq->notify_interval)) {
doorbell.word0 = 0;
if (hq->db_format == LPFC_DB_RING_FORMAT) {
bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
hq->notify_interval);
bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
} else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
hq->notify_interval);
bf_set(lpfc_rq_db_list_fm_index, &doorbell,
hq->host_index);
bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
} else {
return -EINVAL;
}
writel(doorbell.word0, hq->db_regaddr);
}
return hq_put_index;
}
/*
* lpfc_sli4_rq_release - Updates internal hba index for RQ
*
* This routine will update the HBA index of a queue to reflect consumption of
* one Receive Queue Entry by the HBA. When the HBA indicates that it has
* consumed an entry the host calls this function to update the queue's
* internal pointers. This routine returns the number of entries that were
* consumed by the HBA.
**/
static uint32_t
lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
{
/* sanity check on queue memory */
if (unlikely(!hq) || unlikely(!dq))
return 0;
if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
return 0;
hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
return 1;
}
/**
* lpfc_cmd_iocb - Get next command iocb entry in the ring
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* This function returns pointer to next command iocb entry
* in the command ring. The caller must hold hbalock to prevent
* other threads consume the next command iocb.
* SLI-2/SLI-3 provide different sized iocbs.
**/
static inline IOCB_t *
lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
}
/**
* lpfc_resp_iocb - Get next response iocb entry in the ring
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* This function returns pointer to next response iocb entry
* in the response ring. The caller must hold hbalock to make sure
* that no other thread consume the next response iocb.
* SLI-2/SLI-3 provide different sized iocbs.
**/
static inline IOCB_t *
lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
pring->sli.sli3.rspidx * phba->iocb_rsp_size);
}
/**
* __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
* @phba: Pointer to HBA context object.
*
* This function is called with hbalock held. This function
* allocates a new driver iocb object from the iocb pool. If the
* allocation is successful, it returns pointer to the newly
* allocated iocb object else it returns NULL.
**/
struct lpfc_iocbq *
__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
{
struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
struct lpfc_iocbq * iocbq = NULL;
lockdep_assert_held(&phba->hbalock);
list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
if (iocbq)
phba->iocb_cnt++;
if (phba->iocb_cnt > phba->iocb_max)
phba->iocb_max = phba->iocb_cnt;
return iocbq;
}
/**
* __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
* @phba: Pointer to HBA context object.
* @xritag: XRI value.
*
* This function clears the sglq pointer from the array of active
* sglq's. The xritag that is passed in is used to index into the
* array. Before the xritag can be used it needs to be adjusted
* by subtracting the xribase.
*
* Returns sglq ponter = success, NULL = Failure.
**/
struct lpfc_sglq *
__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
{
struct lpfc_sglq *sglq;
sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
return sglq;
}
/**
* __lpfc_get_active_sglq - Get the active sglq for this XRI.
* @phba: Pointer to HBA context object.
* @xritag: XRI value.
*
* This function returns the sglq pointer from the array of active
* sglq's. The xritag that is passed in is used to index into the
* array. Before the xritag can be used it needs to be adjusted
* by subtracting the xribase.
*
* Returns sglq ponter = success, NULL = Failure.
**/
struct lpfc_sglq *
__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
{
struct lpfc_sglq *sglq;
sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
return sglq;
}
/**
* lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
* @phba: Pointer to HBA context object.
* @xritag: xri used in this exchange.
* @rrq: The RRQ to be cleared.
*
**/
void
lpfc_clr_rrq_active(struct lpfc_hba *phba,
uint16_t xritag,
struct lpfc_node_rrq *rrq)
{
struct lpfc_nodelist *ndlp = NULL;
/* Lookup did to verify if did is still active on this vport */
if (rrq->vport)
ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
if (!ndlp)
goto out;
if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
rrq->send_rrq = 0;
rrq->xritag = 0;
rrq->rrq_stop_time = 0;
}
out:
mempool_free(rrq, phba->rrq_pool);
}
/**
* lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
* @phba: Pointer to HBA context object.
*
* This function is called with hbalock held. This function
* Checks if stop_time (ratov from setting rrq active) has
* been reached, if it has and the send_rrq flag is set then
* it will call lpfc_send_rrq. If the send_rrq flag is not set
* then it will just call the routine to clear the rrq and
* free the rrq resource.
* The timer is set to the next rrq that is going to expire before
* leaving the routine.
*
**/
void
lpfc_handle_rrq_active(struct lpfc_hba *phba)
{
struct lpfc_node_rrq *rrq;
struct lpfc_node_rrq *nextrrq;
unsigned long next_time;
unsigned long iflags;
LIST_HEAD(send_rrq);
spin_lock_irqsave(&phba->hbalock, iflags);
phba->hba_flag &= ~HBA_RRQ_ACTIVE;
next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
list_for_each_entry_safe(rrq, nextrrq,
&phba->active_rrq_list, list) {
if (time_after(jiffies, rrq->rrq_stop_time))
list_move(&rrq->list, &send_rrq);
else if (time_before(rrq->rrq_stop_time, next_time))
next_time = rrq->rrq_stop_time;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
if ((!list_empty(&phba->active_rrq_list)) &&
(!(phba->pport->load_flag & FC_UNLOADING)))
mod_timer(&phba->rrq_tmr, next_time);
list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
list_del(&rrq->list);
if (!rrq->send_rrq) {
/* this call will free the rrq */
lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
} else if (lpfc_send_rrq(phba, rrq)) {
/* if we send the rrq then the completion handler
* will clear the bit in the xribitmap.
*/
lpfc_clr_rrq_active(phba, rrq->xritag,
rrq);
}
}
}
/**
* lpfc_get_active_rrq - Get the active RRQ for this exchange.
* @vport: Pointer to vport context object.
* @xri: The xri used in the exchange.
* @did: The targets DID for this exchange.
*
* returns NULL = rrq not found in the phba->active_rrq_list.
* rrq = rrq for this xri and target.
**/
struct lpfc_node_rrq *
lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_node_rrq *rrq;
struct lpfc_node_rrq *nextrrq;
unsigned long iflags;
if (phba->sli_rev != LPFC_SLI_REV4)
return NULL;
spin_lock_irqsave(&phba->hbalock, iflags);
list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
if (rrq->vport == vport && rrq->xritag == xri &&
rrq->nlp_DID == did){
list_del(&rrq->list);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return rrq;
}
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
return NULL;
}
/**
* lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
* @vport: Pointer to vport context object.
* @ndlp: Pointer to the lpfc_node_list structure.
* If ndlp is NULL Remove all active RRQs for this vport from the
* phba->active_rrq_list and clear the rrq.
* If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
**/
void
lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_node_rrq *rrq;
struct lpfc_node_rrq *nextrrq;
unsigned long iflags;
LIST_HEAD(rrq_list);
if (phba->sli_rev != LPFC_SLI_REV4)
return;
if (!ndlp) {
lpfc_sli4_vport_delete_els_xri_aborted(vport);
lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
}
spin_lock_irqsave(&phba->hbalock, iflags);
list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
if (rrq->vport != vport)
continue;
if (!ndlp || ndlp == lpfc_findnode_did(vport, rrq->nlp_DID))
list_move(&rrq->list, &rrq_list);
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
list_del(&rrq->list);
lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
}
}
/**
* lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
* @phba: Pointer to HBA context object.
* @ndlp: Targets nodelist pointer for this exchange.
* @xritag: the xri in the bitmap to test.
*
* This function returns:
* 0 = rrq not active for this xri
* 1 = rrq is valid for this xri.
**/
int
lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
uint16_t xritag)
{
if (!ndlp)
return 0;
if (!ndlp->active_rrqs_xri_bitmap)
return 0;
if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
return 1;
else
return 0;
}
/**
* lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
* @phba: Pointer to HBA context object.
* @ndlp: nodelist pointer for this target.
* @xritag: xri used in this exchange.
* @rxid: Remote Exchange ID.
* @send_rrq: Flag used to determine if we should send rrq els cmd.
*
* This function takes the hbalock.
* The active bit is always set in the active rrq xri_bitmap even
* if there is no slot avaiable for the other rrq information.
*
* returns 0 rrq actived for this xri
* < 0 No memory or invalid ndlp.
**/
int
lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
{
unsigned long iflags;
struct lpfc_node_rrq *rrq;
int empty;
if (!ndlp)
return -EINVAL;
if (!phba->cfg_enable_rrq)
return -EINVAL;
spin_lock_irqsave(&phba->hbalock, iflags);
if (phba->pport->load_flag & FC_UNLOADING) {
phba->hba_flag &= ~HBA_RRQ_ACTIVE;
goto out;
}
if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
goto out;
if (!ndlp->active_rrqs_xri_bitmap)
goto out;
if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
goto out;
spin_unlock_irqrestore(&phba->hbalock, iflags);
rrq = mempool_alloc(phba->rrq_pool, GFP_ATOMIC);
if (!rrq) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
" DID:0x%x Send:%d\n",
xritag, rxid, ndlp->nlp_DID, send_rrq);
return -EINVAL;
}
if (phba->cfg_enable_rrq == 1)
rrq->send_rrq = send_rrq;
else
rrq->send_rrq = 0;
rrq->xritag = xritag;
rrq->rrq_stop_time = jiffies +
msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
rrq->nlp_DID = ndlp->nlp_DID;
rrq->vport = ndlp->vport;
rrq->rxid = rxid;
spin_lock_irqsave(&phba->hbalock, iflags);
empty = list_empty(&phba->active_rrq_list);
list_add_tail(&rrq->list, &phba->active_rrq_list);
phba->hba_flag |= HBA_RRQ_ACTIVE;
if (empty)
lpfc_worker_wake_up(phba);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return 0;
out:
spin_unlock_irqrestore(&phba->hbalock, iflags);
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2921 Can't set rrq active xri:0x%x rxid:0x%x"
" DID:0x%x Send:%d\n",
xritag, rxid, ndlp->nlp_DID, send_rrq);
return -EINVAL;
}
/**
* __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
* @phba: Pointer to HBA context object.
* @piocbq: Pointer to the iocbq.
*
* The driver calls this function with either the nvme ls ring lock
* or the fc els ring lock held depending on the iocb usage. This function
* gets a new driver sglq object from the sglq list. If the list is not empty
* then it is successful, it returns pointer to the newly allocated sglq
* object else it returns NULL.
**/
static struct lpfc_sglq *
__lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
{
struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
struct lpfc_sglq *sglq = NULL;
struct lpfc_sglq *start_sglq = NULL;
struct lpfc_io_buf *lpfc_cmd;
struct lpfc_nodelist *ndlp;
int found = 0;
u8 cmnd;
cmnd = get_job_cmnd(phba, piocbq);
if (piocbq->cmd_flag & LPFC_IO_FCP) {
lpfc_cmd = piocbq->io_buf;
ndlp = lpfc_cmd->rdata->pnode;
} else if ((cmnd == CMD_GEN_REQUEST64_CR) &&
!(piocbq->cmd_flag & LPFC_IO_LIBDFC)) {
ndlp = piocbq->ndlp;
} else if (piocbq->cmd_flag & LPFC_IO_LIBDFC) {
if (piocbq->cmd_flag & LPFC_IO_LOOPBACK)
ndlp = NULL;
else
ndlp = piocbq->ndlp;
} else {
ndlp = piocbq->ndlp;
}
spin_lock(&phba->sli4_hba.sgl_list_lock);
list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
start_sglq = sglq;
while (!found) {
if (!sglq)
break;
if (ndlp && ndlp->active_rrqs_xri_bitmap &&
test_bit(sglq->sli4_lxritag,
ndlp->active_rrqs_xri_bitmap)) {
/* This xri has an rrq outstanding for this DID.
* put it back in the list and get another xri.
*/
list_add_tail(&sglq->list, lpfc_els_sgl_list);
sglq = NULL;
list_remove_head(lpfc_els_sgl_list, sglq,
struct lpfc_sglq, list);
if (sglq == start_sglq) {
list_add_tail(&sglq->list, lpfc_els_sgl_list);
sglq = NULL;
break;
} else
continue;
}
sglq->ndlp = ndlp;
found = 1;
phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
sglq->state = SGL_ALLOCATED;
}
spin_unlock(&phba->sli4_hba.sgl_list_lock);
return sglq;
}
/**
* __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
* @phba: Pointer to HBA context object.
* @piocbq: Pointer to the iocbq.
*
* This function is called with the sgl_list lock held. This function
* gets a new driver sglq object from the sglq list. If the
* list is not empty then it is successful, it returns pointer to the newly
* allocated sglq object else it returns NULL.
**/
struct lpfc_sglq *
__lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
{
struct list_head *lpfc_nvmet_sgl_list;
struct lpfc_sglq *sglq = NULL;
lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
if (!sglq)
return NULL;
phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
sglq->state = SGL_ALLOCATED;
return sglq;
}
/**
* lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
* @phba: Pointer to HBA context object.
*
* This function is called with no lock held. This function
* allocates a new driver iocb object from the iocb pool. If the
* allocation is successful, it returns pointer to the newly
* allocated iocb object else it returns NULL.
**/
struct lpfc_iocbq *
lpfc_sli_get_iocbq(struct lpfc_hba *phba)
{
struct lpfc_iocbq * iocbq = NULL;
unsigned long iflags;
spin_lock_irqsave(&phba->hbalock, iflags);
iocbq = __lpfc_sli_get_iocbq(phba);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return iocbq;
}
/**
* __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
* @phba: Pointer to HBA context object.
* @iocbq: Pointer to driver iocb object.
*
* This function is called to release the driver iocb object
* to the iocb pool. The iotag in the iocb object
* does not change for each use of the iocb object. This function
* clears all other fields of the iocb object when it is freed.
* The sqlq structure that holds the xritag and phys and virtual
* mappings for the scatter gather list is retrieved from the
* active array of sglq. The get of the sglq pointer also clears
* the entry in the array. If the status of the IO indiactes that
* this IO was aborted then the sglq entry it put on the
* lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
* IO has good status or fails for any other reason then the sglq
* entry is added to the free list (lpfc_els_sgl_list). The hbalock is
* asserted held in the code path calling this routine.
**/
static void
__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
struct lpfc_sglq *sglq;
unsigned long iflag = 0;
struct lpfc_sli_ring *pring;
if (iocbq->sli4_xritag == NO_XRI)
sglq = NULL;
else
sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
if (sglq) {
if (iocbq->cmd_flag & LPFC_IO_NVMET) {
spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
iflag);
sglq->state = SGL_FREED;
sglq->ndlp = NULL;
list_add_tail(&sglq->list,
&phba->sli4_hba.lpfc_nvmet_sgl_list);
spin_unlock_irqrestore(
&phba->sli4_hba.sgl_list_lock, iflag);
goto out;
}
if ((iocbq->cmd_flag & LPFC_EXCHANGE_BUSY) &&
(!(unlikely(pci_channel_offline(phba->pcidev)))) &&
sglq->state != SGL_XRI_ABORTED) {
spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
iflag);
/* Check if we can get a reference on ndlp */
if (sglq->ndlp && !lpfc_nlp_get(sglq->ndlp))
sglq->ndlp = NULL;
list_add(&sglq->list,
&phba->sli4_hba.lpfc_abts_els_sgl_list);
spin_unlock_irqrestore(
&phba->sli4_hba.sgl_list_lock, iflag);
} else {
spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
iflag);
sglq->state = SGL_FREED;
sglq->ndlp = NULL;
list_add_tail(&sglq->list,
&phba->sli4_hba.lpfc_els_sgl_list);
spin_unlock_irqrestore(
&phba->sli4_hba.sgl_list_lock, iflag);
pring = lpfc_phba_elsring(phba);
/* Check if TXQ queue needs to be serviced */
if (pring && (!list_empty(&pring->txq)))
lpfc_worker_wake_up(phba);
}
}
out:
/*
* Clean all volatile data fields, preserve iotag and node struct.
*/
memset_startat(iocbq, 0, wqe);
iocbq->sli4_lxritag = NO_XRI;
iocbq->sli4_xritag = NO_XRI;
iocbq->cmd_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET | LPFC_IO_CMF |
LPFC_IO_NVME_LS);
list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
}
/**
* __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
* @phba: Pointer to HBA context object.
* @iocbq: Pointer to driver iocb object.
*
* This function is called to release the driver iocb object to the
* iocb pool. The iotag in the iocb object does not change for each
* use of the iocb object. This function clears all other fields of
* the iocb object when it is freed. The hbalock is asserted held in
* the code path calling this routine.
**/
static void
__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
/*
* Clean all volatile data fields, preserve iotag and node struct.
*/
memset_startat(iocbq, 0, iocb);
iocbq->sli4_xritag = NO_XRI;
list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
}
/**
* __lpfc_sli_release_iocbq - Release iocb to the iocb pool
* @phba: Pointer to HBA context object.
* @iocbq: Pointer to driver iocb object.
*
* This function is called with hbalock held to release driver
* iocb object to the iocb pool. The iotag in the iocb object
* does not change for each use of the iocb object. This function
* clears all other fields of the iocb object when it is freed.
**/
static void
__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
lockdep_assert_held(&phba->hbalock);
phba->__lpfc_sli_release_iocbq(phba, iocbq);
phba->iocb_cnt--;
}
/**
* lpfc_sli_release_iocbq - Release iocb to the iocb pool
* @phba: Pointer to HBA context object.
* @iocbq: Pointer to driver iocb object.
*
* This function is called with no lock held to release the iocb to
* iocb pool.
**/
void
lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
unsigned long iflags;
/*
* Clean all volatile data fields, preserve iotag and node struct.
*/
spin_lock_irqsave(&phba->hbalock, iflags);
__lpfc_sli_release_iocbq(phba, iocbq);
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
/**
* lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
* @phba: Pointer to HBA context object.
* @iocblist: List of IOCBs.
* @ulpstatus: ULP status in IOCB command field.
* @ulpWord4: ULP word-4 in IOCB command field.
*
* This function is called with a list of IOCBs to cancel. It cancels the IOCB
* on the list by invoking the complete callback function associated with the
* IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
* fields.
**/
void
lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
uint32_t ulpstatus, uint32_t ulpWord4)
{
struct lpfc_iocbq *piocb;
while (!list_empty(iocblist)) {
list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
if (piocb->cmd_cmpl) {
if (piocb->cmd_flag & LPFC_IO_NVME) {
lpfc_nvme_cancel_iocb(phba, piocb,
ulpstatus, ulpWord4);
} else {
if (phba->sli_rev == LPFC_SLI_REV4) {
bf_set(lpfc_wcqe_c_status,
&piocb->wcqe_cmpl, ulpstatus);
piocb->wcqe_cmpl.parameter = ulpWord4;
} else {
piocb->iocb.ulpStatus = ulpstatus;
piocb->iocb.un.ulpWord[4] = ulpWord4;
}
(piocb->cmd_cmpl) (phba, piocb, piocb);
}
} else {
lpfc_sli_release_iocbq(phba, piocb);
}
}
return;
}
/**
* lpfc_sli_iocb_cmd_type - Get the iocb type
* @iocb_cmnd: iocb command code.
*
* This function is called by ring event handler function to get the iocb type.
* This function translates the iocb command to an iocb command type used to
* decide the final disposition of each completed IOCB.
* The function returns
* LPFC_UNKNOWN_IOCB if it is an unsupported iocb
* LPFC_SOL_IOCB if it is a solicited iocb completion
* LPFC_ABORT_IOCB if it is an abort iocb
* LPFC_UNSOL_IOCB if it is an unsolicited iocb
*
* The caller is not required to hold any lock.
**/
static lpfc_iocb_type
lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
{
lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
if (iocb_cmnd > CMD_MAX_IOCB_CMD)
return 0;
switch (iocb_cmnd) {
case CMD_XMIT_SEQUENCE_CR:
case CMD_XMIT_SEQUENCE_CX:
case CMD_XMIT_BCAST_CN:
case CMD_XMIT_BCAST_CX:
case CMD_ELS_REQUEST_CR:
case CMD_ELS_REQUEST_CX:
case CMD_CREATE_XRI_CR:
case CMD_CREATE_XRI_CX:
case CMD_GET_RPI_CN:
case CMD_XMIT_ELS_RSP_CX:
case CMD_GET_RPI_CR:
case CMD_FCP_IWRITE_CR:
case CMD_FCP_IWRITE_CX:
case CMD_FCP_IREAD_CR:
case CMD_FCP_IREAD_CX:
case CMD_FCP_ICMND_CR:
case CMD_FCP_ICMND_CX:
case CMD_FCP_TSEND_CX:
case CMD_FCP_TRSP_CX:
case CMD_FCP_TRECEIVE_CX:
case CMD_FCP_AUTO_TRSP_CX:
case CMD_ADAPTER_MSG:
case CMD_ADAPTER_DUMP:
case CMD_XMIT_SEQUENCE64_CR:
case CMD_XMIT_SEQUENCE64_CX:
case CMD_XMIT_BCAST64_CN:
case CMD_XMIT_BCAST64_CX:
case CMD_ELS_REQUEST64_CR:
case CMD_ELS_REQUEST64_CX:
case CMD_FCP_IWRITE64_CR:
case CMD_FCP_IWRITE64_CX:
case CMD_FCP_IREAD64_CR:
case CMD_FCP_IREAD64_CX:
case CMD_FCP_ICMND64_CR:
case CMD_FCP_ICMND64_CX:
case CMD_FCP_TSEND64_CX:
case CMD_FCP_TRSP64_CX:
case CMD_FCP_TRECEIVE64_CX:
case CMD_GEN_REQUEST64_CR:
case CMD_GEN_REQUEST64_CX:
case CMD_XMIT_ELS_RSP64_CX:
case DSSCMD_IWRITE64_CR:
case DSSCMD_IWRITE64_CX:
case DSSCMD_IREAD64_CR:
case DSSCMD_IREAD64_CX:
case CMD_SEND_FRAME:
type = LPFC_SOL_IOCB;
break;
case CMD_ABORT_XRI_CN:
case CMD_ABORT_XRI_CX:
case CMD_CLOSE_XRI_CN:
case CMD_CLOSE_XRI_CX:
case CMD_XRI_ABORTED_CX:
case CMD_ABORT_MXRI64_CN:
case CMD_XMIT_BLS_RSP64_CX:
type = LPFC_ABORT_IOCB;
break;
case CMD_RCV_SEQUENCE_CX:
case CMD_RCV_ELS_REQ_CX:
case CMD_RCV_SEQUENCE64_CX:
case CMD_RCV_ELS_REQ64_CX:
case CMD_ASYNC_STATUS:
case CMD_IOCB_RCV_SEQ64_CX:
case CMD_IOCB_RCV_ELS64_CX:
case CMD_IOCB_RCV_CONT64_CX:
case CMD_IOCB_RET_XRI64_CX:
type = LPFC_UNSOL_IOCB;
break;
case CMD_IOCB_XMIT_MSEQ64_CR:
case CMD_IOCB_XMIT_MSEQ64_CX:
case CMD_IOCB_RCV_SEQ_LIST64_CX:
case CMD_IOCB_RCV_ELS_LIST64_CX:
case CMD_IOCB_CLOSE_EXTENDED_CN:
case CMD_IOCB_ABORT_EXTENDED_CN:
case CMD_IOCB_RET_HBQE64_CN:
case CMD_IOCB_FCP_IBIDIR64_CR:
case CMD_IOCB_FCP_IBIDIR64_CX:
case CMD_IOCB_FCP_ITASKMGT64_CX:
case CMD_IOCB_LOGENTRY_CN:
case CMD_IOCB_LOGENTRY_ASYNC_CN:
printk("%s - Unhandled SLI-3 Command x%x\n",
__func__, iocb_cmnd);
type = LPFC_UNKNOWN_IOCB;
break;
default:
type = LPFC_UNKNOWN_IOCB;
break;
}
return type;
}
/**
* lpfc_sli_ring_map - Issue config_ring mbox for all rings
* @phba: Pointer to HBA context object.
*
* This function is called from SLI initialization code
* to configure every ring of the HBA's SLI interface. The
* caller is not required to hold any lock. This function issues
* a config_ring mailbox command for each ring.
* This function returns zero if successful else returns a negative
* error code.
**/
static int
lpfc_sli_ring_map(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
LPFC_MBOXQ_t *pmb;
MAILBOX_t *pmbox;
int i, rc, ret = 0;
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb)
return -ENOMEM;
pmbox = &pmb->u.mb;
phba->link_state = LPFC_INIT_MBX_CMDS;
for (i = 0; i < psli->num_rings; i++) {
lpfc_config_ring(phba, i, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0446 Adapter failed to init (%d), "
"mbxCmd x%x CFG_RING, mbxStatus x%x, "
"ring %d\n",
rc, pmbox->mbxCommand,
pmbox->mbxStatus, i);
phba->link_state = LPFC_HBA_ERROR;
ret = -ENXIO;
break;
}
}
mempool_free(pmb, phba->mbox_mem_pool);
return ret;
}
/**
* lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @piocb: Pointer to the driver iocb object.
*
* The driver calls this function with the hbalock held for SLI3 ports or
* the ring lock held for SLI4 ports. The function adds the
* new iocb to txcmplq of the given ring. This function always returns
* 0. If this function is called for ELS ring, this function checks if
* there is a vport associated with the ELS command. This function also
* starts els_tmofunc timer if this is an ELS command.
**/
static int
lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *piocb)
{
u32 ulp_command = 0;
BUG_ON(!piocb);
ulp_command = get_job_cmnd(phba, piocb);
list_add_tail(&piocb->list, &pring->txcmplq);
piocb->cmd_flag |= LPFC_IO_ON_TXCMPLQ;
pring->txcmplq_cnt++;
if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
(ulp_command != CMD_ABORT_XRI_WQE) &&
(ulp_command != CMD_ABORT_XRI_CN) &&
(ulp_command != CMD_CLOSE_XRI_CN)) {
BUG_ON(!piocb->vport);
if (!(piocb->vport->load_flag & FC_UNLOADING))
mod_timer(&piocb->vport->els_tmofunc,
jiffies +
msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
}
return 0;
}
/**
* lpfc_sli_ringtx_get - Get first element of the txq
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* This function is called with hbalock held to get next
* iocb in txq of the given ring. If there is any iocb in
* the txq, the function returns first iocb in the list after
* removing the iocb from the list, else it returns NULL.
**/
struct lpfc_iocbq *
lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
struct lpfc_iocbq *cmd_iocb;
lockdep_assert_held(&phba->hbalock);
list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
return cmd_iocb;
}
/**
* lpfc_cmf_sync_cmpl - Process a CMF_SYNC_WQE cmpl
* @phba: Pointer to HBA context object.
* @cmdiocb: Pointer to driver command iocb object.
* @rspiocb: Pointer to driver response iocb object.
*
* This routine will inform the driver of any BW adjustments we need
* to make. These changes will be picked up during the next CMF
* timer interrupt. In addition, any BW changes will be logged
* with LOG_CGN_MGMT.
**/
static void
lpfc_cmf_sync_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
union lpfc_wqe128 *wqe;
uint32_t status, info;
struct lpfc_wcqe_complete *wcqe = &rspiocb->wcqe_cmpl;
uint64_t bw, bwdif, slop;
uint64_t pcent, bwpcent;
int asig, afpin, sigcnt, fpincnt;
int wsigmax, wfpinmax, cg, tdp;
char *s;
/* First check for error */
status = bf_get(lpfc_wcqe_c_status, wcqe);
if (status) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6211 CMF_SYNC_WQE Error "
"req_tag x%x status x%x hwstatus x%x "
"tdatap x%x parm x%x\n",
bf_get(lpfc_wcqe_c_request_tag, wcqe),
bf_get(lpfc_wcqe_c_status, wcqe),
bf_get(lpfc_wcqe_c_hw_status, wcqe),
wcqe->total_data_placed,
wcqe->parameter);
goto out;
}
/* Gather congestion information on a successful cmpl */
info = wcqe->parameter;
phba->cmf_active_info = info;
/* See if firmware info count is valid or has changed */
if (info > LPFC_MAX_CMF_INFO || phba->cmf_info_per_interval == info)
info = 0;
else
phba->cmf_info_per_interval = info;
tdp = bf_get(lpfc_wcqe_c_cmf_bw, wcqe);
cg = bf_get(lpfc_wcqe_c_cmf_cg, wcqe);
/* Get BW requirement from firmware */
bw = (uint64_t)tdp * LPFC_CMF_BLK_SIZE;
if (!bw) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6212 CMF_SYNC_WQE x%x: NULL bw\n",
bf_get(lpfc_wcqe_c_request_tag, wcqe));
goto out;
}
/* Gather information needed for logging if a BW change is required */
wqe = &cmdiocb->wqe;
asig = bf_get(cmf_sync_asig, &wqe->cmf_sync);
afpin = bf_get(cmf_sync_afpin, &wqe->cmf_sync);
fpincnt = bf_get(cmf_sync_wfpincnt, &wqe->cmf_sync);
sigcnt = bf_get(cmf_sync_wsigcnt, &wqe->cmf_sync);
if (phba->cmf_max_bytes_per_interval != bw ||
(asig || afpin || sigcnt || fpincnt)) {
/* Are we increasing or decreasing BW */
if (phba->cmf_max_bytes_per_interval < bw) {
bwdif = bw - phba->cmf_max_bytes_per_interval;
s = "Increase";
} else {
bwdif = phba->cmf_max_bytes_per_interval - bw;
s = "Decrease";
}
/* What is the change percentage */
slop = div_u64(phba->cmf_link_byte_count, 200); /*For rounding*/
pcent = div64_u64(bwdif * 100 + slop,
phba->cmf_link_byte_count);
bwpcent = div64_u64(bw * 100 + slop,
phba->cmf_link_byte_count);
/* Because of bytes adjustment due to shorter timer in
* lpfc_cmf_timer() the cmf_link_byte_count can be shorter and
* may seem like BW is above 100%.
*/
if (bwpcent > 100)
bwpcent = 100;
if (phba->cmf_max_bytes_per_interval < bw &&
bwpcent > 95)
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6208 Congestion bandwidth "
"limits removed\n");
else if ((phba->cmf_max_bytes_per_interval > bw) &&
((bwpcent + pcent) <= 100) && ((bwpcent + pcent) > 95))
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6209 Congestion bandwidth "
"limits in effect\n");
if (asig) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6237 BW Threshold %lld%% (%lld): "
"%lld%% %s: Signal Alarm: cg:%d "
"Info:%u\n",
bwpcent, bw, pcent, s, cg,
phba->cmf_active_info);
} else if (afpin) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6238 BW Threshold %lld%% (%lld): "
"%lld%% %s: FPIN Alarm: cg:%d "
"Info:%u\n",
bwpcent, bw, pcent, s, cg,
phba->cmf_active_info);
} else if (sigcnt) {
wsigmax = bf_get(cmf_sync_wsigmax, &wqe->cmf_sync);
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6239 BW Threshold %lld%% (%lld): "
"%lld%% %s: Signal Warning: "
"Cnt %d Max %d: cg:%d Info:%u\n",
bwpcent, bw, pcent, s, sigcnt,
wsigmax, cg, phba->cmf_active_info);
} else if (fpincnt) {
wfpinmax = bf_get(cmf_sync_wfpinmax, &wqe->cmf_sync);
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6240 BW Threshold %lld%% (%lld): "
"%lld%% %s: FPIN Warning: "
"Cnt %d Max %d: cg:%d Info:%u\n",
bwpcent, bw, pcent, s, fpincnt,
wfpinmax, cg, phba->cmf_active_info);
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6241 BW Threshold %lld%% (%lld): "
"CMF %lld%% %s: cg:%d Info:%u\n",
bwpcent, bw, pcent, s, cg,
phba->cmf_active_info);
}
} else if (info) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6246 Info Threshold %u\n", info);
}
/* Save BW change to be picked up during next timer interrupt */
phba->cmf_last_sync_bw = bw;
out:
lpfc_sli_release_iocbq(phba, cmdiocb);
}
/**
* lpfc_issue_cmf_sync_wqe - Issue a CMF_SYNC_WQE
* @phba: Pointer to HBA context object.
* @ms: ms to set in WQE interval, 0 means use init op
* @total: Total rcv bytes for this interval
*
* This routine is called every CMF timer interrupt. Its purpose is
* to issue a CMF_SYNC_WQE to the firmware to inform it of any events
* that may indicate we have congestion (FPINs or Signals). Upon
* completion, the firmware will indicate any BW restrictions the
* driver may need to take.
**/
int
lpfc_issue_cmf_sync_wqe(struct lpfc_hba *phba, u32 ms, u64 total)
{
union lpfc_wqe128 *wqe;
struct lpfc_iocbq *sync_buf;
unsigned long iflags;
u32 ret_val;
u32 atot, wtot, max;
u8 warn_sync_period = 0;
/* First address any alarm / warning activity */
atot = atomic_xchg(&phba->cgn_sync_alarm_cnt, 0);
wtot = atomic_xchg(&phba->cgn_sync_warn_cnt, 0);
/* ONLY Managed mode will send the CMF_SYNC_WQE to the HBA */
if (phba->cmf_active_mode != LPFC_CFG_MANAGED ||
phba->link_state == LPFC_LINK_DOWN)
return 0;
spin_lock_irqsave(&phba->hbalock, iflags);
sync_buf = __lpfc_sli_get_iocbq(phba);
if (!sync_buf) {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
"6244 No available WQEs for CMF_SYNC_WQE\n");
ret_val = ENOMEM;
goto out_unlock;
}
wqe = &sync_buf->wqe;
/* WQEs are reused. Clear stale data and set key fields to zero */
memset(wqe, 0, sizeof(*wqe));
/* If this is the very first CMF_SYNC_WQE, issue an init operation */
if (!ms) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6441 CMF Init %d - CMF_SYNC_WQE\n",
phba->fc_eventTag);
bf_set(cmf_sync_op, &wqe->cmf_sync, 1); /* 1=init */
bf_set(cmf_sync_interval, &wqe->cmf_sync, LPFC_CMF_INTERVAL);
goto initpath;
}
bf_set(cmf_sync_op, &wqe->cmf_sync, 0); /* 0=recalc */
bf_set(cmf_sync_interval, &wqe->cmf_sync, ms);
/* Check for alarms / warnings */
if (atot) {
if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
/* We hit an Signal alarm condition */
bf_set(cmf_sync_asig, &wqe->cmf_sync, 1);
} else {
/* We hit a FPIN alarm condition */
bf_set(cmf_sync_afpin, &wqe->cmf_sync, 1);
}
} else if (wtot) {
if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
/* We hit an Signal warning condition */
max = LPFC_SEC_TO_MSEC / lpfc_fabric_cgn_frequency *
lpfc_acqe_cgn_frequency;
bf_set(cmf_sync_wsigmax, &wqe->cmf_sync, max);
bf_set(cmf_sync_wsigcnt, &wqe->cmf_sync, wtot);
warn_sync_period = lpfc_acqe_cgn_frequency;
} else {
/* We hit a FPIN warning condition */
bf_set(cmf_sync_wfpinmax, &wqe->cmf_sync, 1);
bf_set(cmf_sync_wfpincnt, &wqe->cmf_sync, 1);
if (phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ)
warn_sync_period =
LPFC_MSECS_TO_SECS(phba->cgn_fpin_frequency);
}
}
/* Update total read blocks during previous timer interval */
wqe->cmf_sync.read_bytes = (u32)(total / LPFC_CMF_BLK_SIZE);
initpath:
bf_set(cmf_sync_ver, &wqe->cmf_sync, LPFC_CMF_SYNC_VER);
wqe->cmf_sync.event_tag = phba->fc_eventTag;
bf_set(cmf_sync_cmnd, &wqe->cmf_sync, CMD_CMF_SYNC_WQE);
/* Setup reqtag to match the wqe completion. */
bf_set(cmf_sync_reqtag, &wqe->cmf_sync, sync_buf->iotag);
bf_set(cmf_sync_qosd, &wqe->cmf_sync, 1);
bf_set(cmf_sync_period, &wqe->cmf_sync, warn_sync_period);
bf_set(cmf_sync_cmd_type, &wqe->cmf_sync, CMF_SYNC_COMMAND);
bf_set(cmf_sync_wqec, &wqe->cmf_sync, 1);
bf_set(cmf_sync_cqid, &wqe->cmf_sync, LPFC_WQE_CQ_ID_DEFAULT);
sync_buf->vport = phba->pport;
sync_buf->cmd_cmpl = lpfc_cmf_sync_cmpl;
sync_buf->cmd_dmabuf = NULL;
sync_buf->rsp_dmabuf = NULL;
sync_buf->bpl_dmabuf = NULL;
sync_buf->sli4_xritag = NO_XRI;
sync_buf->cmd_flag |= LPFC_IO_CMF;
ret_val = lpfc_sli4_issue_wqe(phba, &phba->sli4_hba.hdwq[0], sync_buf);
if (ret_val) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6214 Cannot issue CMF_SYNC_WQE: x%x\n",
ret_val);
__lpfc_sli_release_iocbq(phba, sync_buf);
}
out_unlock:
spin_unlock_irqrestore(&phba->hbalock, iflags);
return ret_val;
}
/**
* lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* This function is called with hbalock held and the caller must post the
* iocb without releasing the lock. If the caller releases the lock,
* iocb slot returned by the function is not guaranteed to be available.
* The function returns pointer to the next available iocb slot if there
* is available slot in the ring, else it returns NULL.
* If the get index of the ring is ahead of the put index, the function
* will post an error attention event to the worker thread to take the
* HBA to offline state.
**/
static IOCB_t *
lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
lockdep_assert_held(&phba->hbalock);
if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
(++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
pring->sli.sli3.next_cmdidx = 0;
if (unlikely(pring->sli.sli3.local_getidx ==
pring->sli.sli3.next_cmdidx)) {
pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0315 Ring %d issue: portCmdGet %d "
"is bigger than cmd ring %d\n",
pring->ringno,
pring->sli.sli3.local_getidx,
max_cmd_idx);
phba->link_state = LPFC_HBA_ERROR;
/*
* All error attention handlers are posted to
* worker thread
*/
phba->work_ha |= HA_ERATT;
phba->work_hs = HS_FFER3;
lpfc_worker_wake_up(phba);
return NULL;
}
if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
return NULL;
}
return lpfc_cmd_iocb(phba, pring);
}
/**
* lpfc_sli_next_iotag - Get an iotag for the iocb
* @phba: Pointer to HBA context object.
* @iocbq: Pointer to driver iocb object.
*
* This function gets an iotag for the iocb. If there is no unused iotag and
* the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
* array and assigns a new iotag.
* The function returns the allocated iotag if successful, else returns zero.
* Zero is not a valid iotag.
* The caller is not required to hold any lock.
**/
uint16_t
lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
{
struct lpfc_iocbq **new_arr;
struct lpfc_iocbq **old_arr;
size_t new_len;
struct lpfc_sli *psli = &phba->sli;
uint16_t iotag;
spin_lock_irq(&phba->hbalock);
iotag = psli->last_iotag;
if(++iotag < psli->iocbq_lookup_len) {
psli->last_iotag = iotag;
psli->iocbq_lookup[iotag] = iocbq;
spin_unlock_irq(&phba->hbalock);
iocbq->iotag = iotag;
return iotag;
} else if (psli->iocbq_lookup_len < (0xffff
- LPFC_IOCBQ_LOOKUP_INCREMENT)) {
new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
spin_unlock_irq(&phba->hbalock);
new_arr = kcalloc(new_len, sizeof(struct lpfc_iocbq *),
GFP_KERNEL);
if (new_arr) {
spin_lock_irq(&phba->hbalock);
old_arr = psli->iocbq_lookup;
if (new_len <= psli->iocbq_lookup_len) {
/* highly unprobable case */
kfree(new_arr);
iotag = psli->last_iotag;
if(++iotag < psli->iocbq_lookup_len) {
psli->last_iotag = iotag;
psli->iocbq_lookup[iotag] = iocbq;
spin_unlock_irq(&phba->hbalock);
iocbq->iotag = iotag;
return iotag;
}
spin_unlock_irq(&phba->hbalock);
return 0;
}
if (psli->iocbq_lookup)
memcpy(new_arr, old_arr,
((psli->last_iotag + 1) *
sizeof (struct lpfc_iocbq *)));
psli->iocbq_lookup = new_arr;
psli->iocbq_lookup_len = new_len;
psli->last_iotag = iotag;
psli->iocbq_lookup[iotag] = iocbq;
spin_unlock_irq(&phba->hbalock);
iocbq->iotag = iotag;
kfree(old_arr);
return iotag;
}
} else
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0318 Failed to allocate IOTAG.last IOTAG is %d\n",
psli->last_iotag);
return 0;
}
/**
* lpfc_sli_submit_iocb - Submit an iocb to the firmware
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @iocb: Pointer to iocb slot in the ring.
* @nextiocb: Pointer to driver iocb object which need to be
* posted to firmware.
*
* This function is called to post a new iocb to the firmware. This
* function copies the new iocb to ring iocb slot and updates the
* ring pointers. It adds the new iocb to txcmplq if there is
* a completion call back for this iocb else the function will free the
* iocb object. The hbalock is asserted held in the code path calling
* this routine.
**/
static void
lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
{
/*
* Set up an iotag
*/
nextiocb->iocb.ulpIoTag = (nextiocb->cmd_cmpl) ? nextiocb->iotag : 0;
if (pring->ringno == LPFC_ELS_RING) {
lpfc_debugfs_slow_ring_trc(phba,
"IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
*(((uint32_t *) &nextiocb->iocb) + 4),
*(((uint32_t *) &nextiocb->iocb) + 6),
*(((uint32_t *) &nextiocb->iocb) + 7));
}
/*
* Issue iocb command to adapter
*/
lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
wmb();
pring->stats.iocb_cmd++;
/*
* If there is no completion routine to call, we can release the
* IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
* that have no rsp ring completion, cmd_cmpl MUST be NULL.
*/
if (nextiocb->cmd_cmpl)
lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
else
__lpfc_sli_release_iocbq(phba, nextiocb);
/*
* Let the HBA know what IOCB slot will be the next one the
* driver will put a command into.
*/
pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
}
/**
* lpfc_sli_update_full_ring - Update the chip attention register
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* The caller is not required to hold any lock for calling this function.
* This function updates the chip attention bits for the ring to inform firmware
* that there are pending work to be done for this ring and requests an
* interrupt when there is space available in the ring. This function is
* called when the driver is unable to post more iocbs to the ring due
* to unavailability of space in the ring.
**/
static void
lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
int ringno = pring->ringno;
pring->flag |= LPFC_CALL_RING_AVAILABLE;
wmb();
/*
* Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
* The HBA will tell us when an IOCB entry is available.
*/
writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
readl(phba->CAregaddr); /* flush */
pring->stats.iocb_cmd_full++;
}
/**
* lpfc_sli_update_ring - Update chip attention register
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* This function updates the chip attention register bit for the
* given ring to inform HBA that there is more work to be done
* in this ring. The caller is not required to hold any lock.
**/
static void
lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
int ringno = pring->ringno;
/*
* Tell the HBA that there is work to do in this ring.
*/
if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
wmb();
writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
readl(phba->CAregaddr); /* flush */
}
}
/**
* lpfc_sli_resume_iocb - Process iocbs in the txq
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* This function is called with hbalock held to post pending iocbs
* in the txq to the firmware. This function is called when driver
* detects space available in the ring.
**/
static void
lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
IOCB_t *iocb;
struct lpfc_iocbq *nextiocb;
lockdep_assert_held(&phba->hbalock);
/*
* Check to see if:
* (a) there is anything on the txq to send
* (b) link is up
* (c) link attention events can be processed (fcp ring only)
* (d) IOCB processing is not blocked by the outstanding mbox command.
*/
if (lpfc_is_link_up(phba) &&
(!list_empty(&pring->txq)) &&
(pring->ringno != LPFC_FCP_RING ||
phba->sli.sli_flag & LPFC_PROCESS_LA)) {
while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
(nextiocb = lpfc_sli_ringtx_get(phba, pring)))
lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
if (iocb)
lpfc_sli_update_ring(phba, pring);
else
lpfc_sli_update_full_ring(phba, pring);
}
return;
}
/**
* lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
* @phba: Pointer to HBA context object.
* @hbqno: HBQ number.
*
* This function is called with hbalock held to get the next
* available slot for the given HBQ. If there is free slot
* available for the HBQ it will return pointer to the next available
* HBQ entry else it will return NULL.
**/
static struct lpfc_hbq_entry *
lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
{
struct hbq_s *hbqp = &phba->hbqs[hbqno];
lockdep_assert_held(&phba->hbalock);
if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
++hbqp->next_hbqPutIdx >= hbqp->entry_count)
hbqp->next_hbqPutIdx = 0;
if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
uint32_t raw_index = phba->hbq_get[hbqno];
uint32_t getidx = le32_to_cpu(raw_index);
hbqp->local_hbqGetIdx = getidx;
if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1802 HBQ %d: local_hbqGetIdx "
"%u is > than hbqp->entry_count %u\n",
hbqno, hbqp->local_hbqGetIdx,
hbqp->entry_count);
phba->link_state = LPFC_HBA_ERROR;
return NULL;
}
if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
return NULL;
}
return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
hbqp->hbqPutIdx;
}
/**
* lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
* @phba: Pointer to HBA context object.
*
* This function is called with no lock held to free all the
* hbq buffers while uninitializing the SLI interface. It also
* frees the HBQ buffers returned by the firmware but not yet
* processed by the upper layers.
**/
void
lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
{
struct lpfc_dmabuf *dmabuf, *next_dmabuf;
struct hbq_dmabuf *hbq_buf;
unsigned long flags;
int i, hbq_count;
hbq_count = lpfc_sli_hbq_count();
/* Return all memory used by all HBQs */
spin_lock_irqsave(&phba->hbalock, flags);
for (i = 0; i < hbq_count; ++i) {
list_for_each_entry_safe(dmabuf, next_dmabuf,
&phba->hbqs[i].hbq_buffer_list, list) {
hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
list_del(&hbq_buf->dbuf.list);
(phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
}
phba->hbqs[i].buffer_count = 0;
}
/* Mark the HBQs not in use */
phba->hbq_in_use = 0;
spin_unlock_irqrestore(&phba->hbalock, flags);
}
/**
* lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
* @phba: Pointer to HBA context object.
* @hbqno: HBQ number.
* @hbq_buf: Pointer to HBQ buffer.
*
* This function is called with the hbalock held to post a
* hbq buffer to the firmware. If the function finds an empty
* slot in the HBQ, it will post the buffer. The function will return
* pointer to the hbq entry if it successfully post the buffer
* else it will return NULL.
**/
static int
lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
struct hbq_dmabuf *hbq_buf)
{
lockdep_assert_held(&phba->hbalock);
return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
}
/**
* lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
* @phba: Pointer to HBA context object.
* @hbqno: HBQ number.
* @hbq_buf: Pointer to HBQ buffer.
*
* This function is called with the hbalock held to post a hbq buffer to the
* firmware. If the function finds an empty slot in the HBQ, it will post the
* buffer and place it on the hbq_buffer_list. The function will return zero if
* it successfully post the buffer else it will return an error.
**/
static int
lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
struct hbq_dmabuf *hbq_buf)
{
struct lpfc_hbq_entry *hbqe;
dma_addr_t physaddr = hbq_buf->dbuf.phys;
lockdep_assert_held(&phba->hbalock);
/* Get next HBQ entry slot to use */
hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
if (hbqe) {
struct hbq_s *hbqp = &phba->hbqs[hbqno];
hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
hbqe->bde.tus.f.bdeFlags = 0;
hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
/* Sync SLIM */
hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
/* flush */
readl(phba->hbq_put + hbqno);
list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
return 0;
} else
return -ENOMEM;
}
/**
* lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
* @phba: Pointer to HBA context object.
* @hbqno: HBQ number.
* @hbq_buf: Pointer to HBQ buffer.
*
* This function is called with the hbalock held to post an RQE to the SLI4
* firmware. If able to post the RQE to the RQ it will queue the hbq entry to
* the hbq_buffer_list and return zero, otherwise it will return an error.
**/
static int
lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
struct hbq_dmabuf *hbq_buf)
{
int rc;
struct lpfc_rqe hrqe;
struct lpfc_rqe drqe;
struct lpfc_queue *hrq;
struct lpfc_queue *drq;
if (hbqno != LPFC_ELS_HBQ)
return 1;
hrq = phba->sli4_hba.hdr_rq;
drq = phba->sli4_hba.dat_rq;
lockdep_assert_held(&phba->hbalock);
hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
if (rc < 0)
return rc;
hbq_buf->tag = (rc | (hbqno << 16));
list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
return 0;
}
/* HBQ for ELS and CT traffic. */
static struct lpfc_hbq_init lpfc_els_hbq = {
.rn = 1,
.entry_count = 256,
.mask_count = 0,
.profile = 0,
.ring_mask = (1 << LPFC_ELS_RING),
.buffer_count = 0,
.init_count = 40,
.add_count = 40,
};
/* Array of HBQs */
struct lpfc_hbq_init *lpfc_hbq_defs[] = {
&lpfc_els_hbq,
};
/**
* lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
* @phba: Pointer to HBA context object.
* @hbqno: HBQ number.
* @count: Number of HBQ buffers to be posted.
*
* This function is called with no lock held to post more hbq buffers to the
* given HBQ. The function returns the number of HBQ buffers successfully
* posted.
**/
static int
lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
{
uint32_t i, posted = 0;
unsigned long flags;
struct hbq_dmabuf *hbq_buffer;
LIST_HEAD(hbq_buf_list);
if (!phba->hbqs[hbqno].hbq_alloc_buffer)
return 0;
if ((phba->hbqs[hbqno].buffer_count + count) >
lpfc_hbq_defs[hbqno]->entry_count)
count = lpfc_hbq_defs[hbqno]->entry_count -
phba->hbqs[hbqno].buffer_count;
if (!count)
return 0;
/* Allocate HBQ entries */
for (i = 0; i < count; i++) {
hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
if (!hbq_buffer)
break;
list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
}
/* Check whether HBQ is still in use */
spin_lock_irqsave(&phba->hbalock, flags);
if (!phba->hbq_in_use)
goto err;
while (!list_empty(&hbq_buf_list)) {
list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
dbuf.list);
hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
(hbqno << 16));
if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
phba->hbqs[hbqno].buffer_count++;
posted++;
} else
(phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
}
spin_unlock_irqrestore(&phba->hbalock, flags);
return posted;
err:
spin_unlock_irqrestore(&phba->hbalock, flags);
while (!list_empty(&hbq_buf_list)) {
list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
dbuf.list);
(phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
}
return 0;
}
/**
* lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
* @phba: Pointer to HBA context object.
* @qno: HBQ number.
*
* This function posts more buffers to the HBQ. This function
* is called with no lock held. The function returns the number of HBQ entries
* successfully allocated.
**/
int
lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
{
if (phba->sli_rev == LPFC_SLI_REV4)
return 0;
else
return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
lpfc_hbq_defs[qno]->add_count);
}
/**
* lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
* @phba: Pointer to HBA context object.
* @qno: HBQ queue number.
*
* This function is called from SLI initialization code path with
* no lock held to post initial HBQ buffers to firmware. The
* function returns the number of HBQ entries successfully allocated.
**/
static int
lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
{
if (phba->sli_rev == LPFC_SLI_REV4)
return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
lpfc_hbq_defs[qno]->entry_count);
else
return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
lpfc_hbq_defs[qno]->init_count);
}
/*
* lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
*
* This function removes the first hbq buffer on an hbq list and returns a
* pointer to that buffer. If it finds no buffers on the list it returns NULL.
**/
static struct hbq_dmabuf *
lpfc_sli_hbqbuf_get(struct list_head *rb_list)
{
struct lpfc_dmabuf *d_buf;
list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
if (!d_buf)
return NULL;
return container_of(d_buf, struct hbq_dmabuf, dbuf);
}
/**
* lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
* @phba: Pointer to HBA context object.
* @hrq: HBQ number.
*
* This function removes the first RQ buffer on an RQ buffer list and returns a
* pointer to that buffer. If it finds no buffers on the list it returns NULL.
**/
static struct rqb_dmabuf *
lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
{
struct lpfc_dmabuf *h_buf;
struct lpfc_rqb *rqbp;
rqbp = hrq->rqbp;
list_remove_head(&rqbp->rqb_buffer_list, h_buf,
struct lpfc_dmabuf, list);
if (!h_buf)
return NULL;
rqbp->buffer_count--;
return container_of(h_buf, struct rqb_dmabuf, hbuf);
}
/**
* lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
* @phba: Pointer to HBA context object.
* @tag: Tag of the hbq buffer.
*
* This function searches for the hbq buffer associated with the given tag in
* the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
* otherwise it returns NULL.
**/
static struct hbq_dmabuf *
lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
{
struct lpfc_dmabuf *d_buf;
struct hbq_dmabuf *hbq_buf;
uint32_t hbqno;
hbqno = tag >> 16;
if (hbqno >= LPFC_MAX_HBQS)
return NULL;
spin_lock_irq(&phba->hbalock);
list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
if (hbq_buf->tag == tag) {
spin_unlock_irq(&phba->hbalock);
return hbq_buf;
}
}
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1803 Bad hbq tag. Data: x%x x%x\n",
tag, phba->hbqs[tag >> 16].buffer_count);
return NULL;
}
/**
* lpfc_sli_free_hbq - Give back the hbq buffer to firmware
* @phba: Pointer to HBA context object.
* @hbq_buffer: Pointer to HBQ buffer.
*
* This function is called with hbalock. This function gives back
* the hbq buffer to firmware. If the HBQ does not have space to
* post the buffer, it will free the buffer.
**/
void
lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
{
uint32_t hbqno;
if (hbq_buffer) {
hbqno = hbq_buffer->tag >> 16;
if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
(phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
}
}
/**
* lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
* @mbxCommand: mailbox command code.
*
* This function is called by the mailbox event handler function to verify
* that the completed mailbox command is a legitimate mailbox command. If the
* completed mailbox is not known to the function, it will return MBX_SHUTDOWN
* and the mailbox event handler will take the HBA offline.
**/
static int
lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
{
uint8_t ret;
switch (mbxCommand) {
case MBX_LOAD_SM:
case MBX_READ_NV:
case MBX_WRITE_NV:
case MBX_WRITE_VPARMS:
case MBX_RUN_BIU_DIAG:
case MBX_INIT_LINK:
case MBX_DOWN_LINK:
case MBX_CONFIG_LINK:
case MBX_CONFIG_RING:
case MBX_RESET_RING:
case MBX_READ_CONFIG:
case MBX_READ_RCONFIG:
case MBX_READ_SPARM:
case MBX_READ_STATUS:
case MBX_READ_RPI:
case MBX_READ_XRI:
case MBX_READ_REV:
case MBX_READ_LNK_STAT:
case MBX_REG_LOGIN:
case MBX_UNREG_LOGIN:
case MBX_CLEAR_LA:
case MBX_DUMP_MEMORY:
case MBX_DUMP_CONTEXT:
case MBX_RUN_DIAGS:
case MBX_RESTART:
case MBX_UPDATE_CFG:
case MBX_DOWN_LOAD:
case MBX_DEL_LD_ENTRY:
case MBX_RUN_PROGRAM:
case MBX_SET_MASK:
case MBX_SET_VARIABLE:
case MBX_UNREG_D_ID:
case MBX_KILL_BOARD:
case MBX_CONFIG_FARP:
case MBX_BEACON:
case MBX_LOAD_AREA:
case MBX_RUN_BIU_DIAG64:
case MBX_CONFIG_PORT:
case MBX_READ_SPARM64:
case MBX_READ_RPI64:
case MBX_REG_LOGIN64:
case MBX_READ_TOPOLOGY:
case MBX_WRITE_WWN:
case MBX_SET_DEBUG:
case MBX_LOAD_EXP_ROM:
case MBX_ASYNCEVT_ENABLE:
case MBX_REG_VPI:
case MBX_UNREG_VPI:
case MBX_HEARTBEAT:
case MBX_PORT_CAPABILITIES:
case MBX_PORT_IOV_CONTROL:
case MBX_SLI4_CONFIG:
case MBX_SLI4_REQ_FTRS:
case MBX_REG_FCFI:
case MBX_UNREG_FCFI:
case MBX_REG_VFI:
case MBX_UNREG_VFI:
case MBX_INIT_VPI:
case MBX_INIT_VFI:
case MBX_RESUME_RPI:
case MBX_READ_EVENT_LOG_STATUS:
case MBX_READ_EVENT_LOG:
case MBX_SECURITY_MGMT:
case MBX_AUTH_PORT:
case MBX_ACCESS_VDATA:
ret = mbxCommand;
break;
default:
ret = MBX_SHUTDOWN;
break;
}
return ret;
}
/**
* lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
* @phba: Pointer to HBA context object.
* @pmboxq: Pointer to mailbox command.
*
* This is completion handler function for mailbox commands issued from
* lpfc_sli_issue_mbox_wait function. This function is called by the
* mailbox event handler function with no lock held. This function
* will wake up thread waiting on the wait queue pointed by context1
* of the mailbox.
**/
void
lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
unsigned long drvr_flag;
struct completion *pmbox_done;
/*
* If pmbox_done is empty, the driver thread gave up waiting and
* continued running.
*/
pmboxq->mbox_flag |= LPFC_MBX_WAKE;
spin_lock_irqsave(&phba->hbalock, drvr_flag);
pmbox_done = (struct completion *)pmboxq->context3;
if (pmbox_done)
complete(pmbox_done);
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
return;
}
static void
__lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
unsigned long iflags;
if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
spin_unlock_irqrestore(&ndlp->lock, iflags);
}
ndlp->nlp_flag &= ~NLP_UNREG_INP;
}
void
lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
__lpfc_sli_rpi_release(vport, ndlp);
}
/**
* lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
* @phba: Pointer to HBA context object.
* @pmb: Pointer to mailbox object.
*
* This function is the default mailbox completion handler. It
* frees the memory resources associated with the completed mailbox
* command. If the completed command is a REG_LOGIN mailbox command,
* this function will issue a UREG_LOGIN to re-claim the RPI.
**/
void
lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct lpfc_dmabuf *mp;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
uint16_t rpi, vpi;
int rc;
/*
* If a REG_LOGIN succeeded after node is destroyed or node
* is in re-discovery driver need to cleanup the RPI.
*/
if (!(phba->pport->load_flag & FC_UNLOADING) &&
pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
!pmb->u.mb.mbxStatus) {
mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
if (mp) {
pmb->ctx_buf = NULL;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
rpi = pmb->u.mb.un.varWords[0];
vpi = pmb->u.mb.un.varRegLogin.vpi;
if (phba->sli_rev == LPFC_SLI_REV4)
vpi -= phba->sli4_hba.max_cfg_param.vpi_base;
lpfc_unreg_login(phba, vpi, rpi, pmb);
pmb->vport = vport;
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc != MBX_NOT_FINISHED)
return;
}
if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
!(phba->pport->load_flag & FC_UNLOADING) &&
!pmb->u.mb.mbxStatus) {
shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
vport->vpi_state |= LPFC_VPI_REGISTERED;
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
}
if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
lpfc_nlp_put(ndlp);
}
if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
/* Check to see if there are any deferred events to process */
if (ndlp) {
lpfc_printf_vlog(
vport,
KERN_INFO, LOG_MBOX | LOG_DISCOVERY,
"1438 UNREG cmpl deferred mbox x%x "
"on NPort x%x Data: x%x x%x x%px x%x x%x\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_defer_did,
ndlp, vport->load_flag, kref_read(&ndlp->kref));
if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
(ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
ndlp->nlp_flag &= ~NLP_UNREG_INP;
ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
} else {
__lpfc_sli_rpi_release(vport, ndlp);
}
/* The unreg_login mailbox is complete and had a
* reference that has to be released. The PLOGI
* got its own ref.
*/
lpfc_nlp_put(ndlp);
pmb->ctx_ndlp = NULL;
}
}
/* This nlp_put pairs with lpfc_sli4_resume_rpi */
if (pmb->u.mb.mbxCommand == MBX_RESUME_RPI) {
ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
lpfc_nlp_put(ndlp);
}
/* Check security permission status on INIT_LINK mailbox command */
if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
(pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2860 SLI authentication is required "
"for INIT_LINK but has not done yet\n");
if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
lpfc_sli4_mbox_cmd_free(phba, pmb);
else
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
}
/**
* lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
* @phba: Pointer to HBA context object.
* @pmb: Pointer to mailbox object.
*
* This function is the unreg rpi mailbox completion handler. It
* frees the memory resources associated with the completed mailbox
* command. An additional reference is put on the ndlp to prevent
* lpfc_nlp_release from freeing the rpi bit in the bitmask before
* the unreg mailbox command completes, this routine puts the
* reference back.
*
**/
void
lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct lpfc_nodelist *ndlp;
ndlp = pmb->ctx_ndlp;
if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
if (phba->sli_rev == LPFC_SLI_REV4 &&
(bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf) >=
LPFC_SLI_INTF_IF_TYPE_2)) {
if (ndlp) {
lpfc_printf_vlog(
vport, KERN_INFO, LOG_MBOX | LOG_SLI,
"0010 UNREG_LOGIN vpi:%x "
"rpi:%x DID:%x defer x%x flg x%x "
"x%px\n",
vport->vpi, ndlp->nlp_rpi,
ndlp->nlp_DID, ndlp->nlp_defer_did,
ndlp->nlp_flag,
ndlp);
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
/* Check to see if there are any deferred
* events to process
*/
if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
(ndlp->nlp_defer_did !=
NLP_EVT_NOTHING_PENDING)) {
lpfc_printf_vlog(
vport, KERN_INFO, LOG_DISCOVERY,
"4111 UNREG cmpl deferred "
"clr x%x on "
"NPort x%x Data: x%x x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_defer_did, ndlp);
ndlp->nlp_flag &= ~NLP_UNREG_INP;
ndlp->nlp_defer_did =
NLP_EVT_NOTHING_PENDING;
lpfc_issue_els_plogi(
vport, ndlp->nlp_DID, 0);
} else {
__lpfc_sli_rpi_release(vport, ndlp);
}
lpfc_nlp_put(ndlp);
}
}
}
mempool_free(pmb, phba->mbox_mem_pool);
}
/**
* lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
* @phba: Pointer to HBA context object.
*
* This function is called with no lock held. This function processes all
* the completed mailbox commands and gives it to upper layers. The interrupt
* service routine processes mailbox completion interrupt and adds completed
* mailbox commands to the mboxq_cmpl queue and signals the worker thread.
* Worker thread call lpfc_sli_handle_mb_event, which will return the
* completed mailbox commands in mboxq_cmpl queue to the upper layers. This
* function returns the mailbox commands to the upper layer by calling the
* completion handler function of each mailbox.
**/
int
lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
{
MAILBOX_t *pmbox;
LPFC_MBOXQ_t *pmb;
int rc;
LIST_HEAD(cmplq);
phba->sli.slistat.mbox_event++;
/* Get all completed mailboxe buffers into the cmplq */
spin_lock_irq(&phba->hbalock);
list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
spin_unlock_irq(&phba->hbalock);
/* Get a Mailbox buffer to setup mailbox commands for callback */
do {
list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
if (pmb == NULL)
break;
pmbox = &pmb->u.mb;
if (pmbox->mbxCommand != MBX_HEARTBEAT) {
if (pmb->vport) {
lpfc_debugfs_disc_trc(pmb->vport,
LPFC_DISC_TRC_MBOX_VPORT,
"MBOX cmpl vport: cmd:x%x mb:x%x x%x",
(uint32_t)pmbox->mbxCommand,
pmbox->un.varWords[0],
pmbox->un.varWords[1]);
}
else {
lpfc_debugfs_disc_trc(phba->pport,
LPFC_DISC_TRC_MBOX,
"MBOX cmpl: cmd:x%x mb:x%x x%x",
(uint32_t)pmbox->mbxCommand,
pmbox->un.varWords[0],
pmbox->un.varWords[1]);
}
}
/*
* It is a fatal error if unknown mbox command completion.
*/
if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
MBX_SHUTDOWN) {
/* Unknown mailbox command compl */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):0323 Unknown Mailbox command "
"x%x (x%x/x%x) Cmpl\n",
pmb->vport ? pmb->vport->vpi :
LPFC_VPORT_UNKNOWN,
pmbox->mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba,
pmb),
lpfc_sli_config_mbox_opcode_get(phba,
pmb));
phba->link_state = LPFC_HBA_ERROR;
phba->work_hs = HS_FFER3;
lpfc_handle_eratt(phba);
continue;
}
if (pmbox->mbxStatus) {
phba->sli.slistat.mbox_stat_err++;
if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
/* Mbox cmd cmpl error - RETRYing */
lpfc_printf_log(phba, KERN_INFO,
LOG_MBOX | LOG_SLI,
"(%d):0305 Mbox cmd cmpl "
"error - RETRYing Data: x%x "
"(x%x/x%x) x%x x%x x%x\n",
pmb->vport ? pmb->vport->vpi :
LPFC_VPORT_UNKNOWN,
pmbox->mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba,
pmb),
lpfc_sli_config_mbox_opcode_get(phba,
pmb),
pmbox->mbxStatus,
pmbox->un.varWords[0],
pmb->vport ? pmb->vport->port_state :
LPFC_VPORT_UNKNOWN);
pmbox->mbxStatus = 0;
pmbox->mbxOwner = OWN_HOST;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc != MBX_NOT_FINISHED)
continue;
}
}
/* Mailbox cmd <cmd> Cmpl <cmpl> */
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl %ps "
"Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
"x%x x%x x%x\n",
pmb->vport ? pmb->vport->vpi : 0,
pmbox->mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba, pmb),
lpfc_sli_config_mbox_opcode_get(phba, pmb),
pmb->mbox_cmpl,
*((uint32_t *) pmbox),
pmbox->un.varWords[0],
pmbox->un.varWords[1],
pmbox->un.varWords[2],
pmbox->un.varWords[3],
pmbox->un.varWords[4],
pmbox->un.varWords[5],
pmbox->un.varWords[6],
pmbox->un.varWords[7],
pmbox->un.varWords[8],
pmbox->un.varWords[9],
pmbox->un.varWords[10]);
if (pmb->mbox_cmpl)
pmb->mbox_cmpl(phba,pmb);
} while (1);
return 0;
}
/**
* lpfc_sli_get_buff - Get the buffer associated with the buffer tag
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @tag: buffer tag.
*
* This function is called with no lock held. When QUE_BUFTAG_BIT bit
* is set in the tag the buffer is posted for a particular exchange,
* the function will return the buffer without replacing the buffer.
* If the buffer is for unsolicited ELS or CT traffic, this function
* returns the buffer and also posts another buffer to the firmware.
**/
static struct lpfc_dmabuf *
lpfc_sli_get_buff(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring,
uint32_t tag)
{
struct hbq_dmabuf *hbq_entry;
if (tag & QUE_BUFTAG_BIT)
return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
if (!hbq_entry)
return NULL;
return &hbq_entry->dbuf;
}
/**
* lpfc_nvme_unsol_ls_handler - Process an unsolicited event data buffer
* containing a NVME LS request.
* @phba: pointer to lpfc hba data structure.
* @piocb: pointer to the iocbq struct representing the sequence starting
* frame.
*
* This routine initially validates the NVME LS, validates there is a login
* with the port that sent the LS, and then calls the appropriate nvme host
* or target LS request handler.
**/
static void
lpfc_nvme_unsol_ls_handler(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
{
struct lpfc_nodelist *ndlp;
struct lpfc_dmabuf *d_buf;
struct hbq_dmabuf *nvmebuf;
struct fc_frame_header *fc_hdr;
struct lpfc_async_xchg_ctx *axchg = NULL;
char *failwhy = NULL;
uint32_t oxid, sid, did, fctl, size;
int ret = 1;
d_buf = piocb->cmd_dmabuf;
nvmebuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
fc_hdr = nvmebuf->hbuf.virt;
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
sid = sli4_sid_from_fc_hdr(fc_hdr);
did = sli4_did_from_fc_hdr(fc_hdr);
fctl = (fc_hdr->fh_f_ctl[0] << 16 |
fc_hdr->fh_f_ctl[1] << 8 |
fc_hdr->fh_f_ctl[2]);
size = bf_get(lpfc_rcqe_length, &nvmebuf->cq_event.cqe.rcqe_cmpl);
lpfc_nvmeio_data(phba, "NVME LS RCV: xri x%x sz %d from %06x\n",
oxid, size, sid);
if (phba->pport->load_flag & FC_UNLOADING) {
failwhy = "Driver Unloading";
} else if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
failwhy = "NVME FC4 Disabled";
} else if (!phba->nvmet_support && !phba->pport->localport) {
failwhy = "No Localport";
} else if (phba->nvmet_support && !phba->targetport) {
failwhy = "No Targetport";
} else if (unlikely(fc_hdr->fh_r_ctl != FC_RCTL_ELS4_REQ)) {
failwhy = "Bad NVME LS R_CTL";
} else if (unlikely((fctl & 0x00FF0000) !=
(FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT))) {
failwhy = "Bad NVME LS F_CTL";
} else {
axchg = kzalloc(sizeof(*axchg), GFP_ATOMIC);
if (!axchg)
failwhy = "No CTX memory";
}
if (unlikely(failwhy)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6154 Drop NVME LS: SID %06X OXID x%X: %s\n",
sid, oxid, failwhy);
goto out_fail;
}
/* validate the source of the LS is logged in */
ndlp = lpfc_findnode_did(phba->pport, sid);
if (!ndlp ||
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
"6216 NVME Unsol rcv: No ndlp: "
"NPort_ID x%x oxid x%x\n",
sid, oxid);
goto out_fail;
}
axchg->phba = phba;
axchg->ndlp = ndlp;
axchg->size = size;
axchg->oxid = oxid;
axchg->sid = sid;
axchg->wqeq = NULL;
axchg->state = LPFC_NVME_STE_LS_RCV;
axchg->entry_cnt = 1;
axchg->rqb_buffer = (void *)nvmebuf;
axchg->hdwq = &phba->sli4_hba.hdwq[0];
axchg->payload = nvmebuf->dbuf.virt;
INIT_LIST_HEAD(&axchg->list);
if (phba->nvmet_support) {
ret = lpfc_nvmet_handle_lsreq(phba, axchg);
spin_lock_irq(&ndlp->lock);
if (!ret && !(ndlp->fc4_xpt_flags & NLP_XPT_HAS_HH)) {
ndlp->fc4_xpt_flags |= NLP_XPT_HAS_HH;
spin_unlock_irq(&ndlp->lock);
/* This reference is a single occurrence to hold the
* node valid until the nvmet transport calls
* host_release.
*/
if (!lpfc_nlp_get(ndlp))
goto out_fail;
lpfc_printf_log(phba, KERN_ERR, LOG_NODE,
"6206 NVMET unsol ls_req ndlp x%px "
"DID x%x xflags x%x refcnt %d\n",
ndlp, ndlp->nlp_DID,
ndlp->fc4_xpt_flags,
kref_read(&ndlp->kref));
} else {
spin_unlock_irq(&ndlp->lock);
}
} else {
ret = lpfc_nvme_handle_lsreq(phba, axchg);
}
/* if zero, LS was successfully handled. If non-zero, LS not handled */
if (!ret)
return;
out_fail:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6155 Drop NVME LS from DID %06X: SID %06X OXID x%X "
"NVMe%s handler failed %d\n",
did, sid, oxid,
(phba->nvmet_support) ? "T" : "I", ret);
/* recycle receive buffer */
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
/* If start of new exchange, abort it */
if (axchg && (fctl & FC_FC_FIRST_SEQ && !(fctl & FC_FC_EX_CTX)))
ret = lpfc_nvme_unsol_ls_issue_abort(phba, axchg, sid, oxid);
if (ret)
kfree(axchg);
}
/**
* lpfc_complete_unsol_iocb - Complete an unsolicited sequence
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @saveq: Pointer to the iocbq struct representing the sequence starting frame.
* @fch_r_ctl: the r_ctl for the first frame of the sequence.
* @fch_type: the type for the first frame of the sequence.
*
* This function is called with no lock held. This function uses the r_ctl and
* type of the received sequence to find the correct callback function to call
* to process the sequence.
**/
static int
lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
uint32_t fch_type)
{
int i;
switch (fch_type) {
case FC_TYPE_NVME:
lpfc_nvme_unsol_ls_handler(phba, saveq);
return 1;
default:
break;
}
/* unSolicited Responses */
if (pring->prt[0].profile) {
if (pring->prt[0].lpfc_sli_rcv_unsol_event)
(pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
saveq);
return 1;
}
/* We must search, based on rctl / type
for the right routine */
for (i = 0; i < pring->num_mask; i++) {
if ((pring->prt[i].rctl == fch_r_ctl) &&
(pring->prt[i].type == fch_type)) {
if (pring->prt[i].lpfc_sli_rcv_unsol_event)
(pring->prt[i].lpfc_sli_rcv_unsol_event)
(phba, pring, saveq);
return 1;
}
}
return 0;
}
static void
lpfc_sli_prep_unsol_wqe(struct lpfc_hba *phba,
struct lpfc_iocbq *saveq)
{
IOCB_t *irsp;
union lpfc_wqe128 *wqe;
u16 i = 0;
irsp = &saveq->iocb;
wqe = &saveq->wqe;
/* Fill wcqe with the IOCB status fields */
bf_set(lpfc_wcqe_c_status, &saveq->wcqe_cmpl, irsp->ulpStatus);
saveq->wcqe_cmpl.word3 = irsp->ulpBdeCount;
saveq->wcqe_cmpl.parameter = irsp->un.ulpWord[4];
saveq->wcqe_cmpl.total_data_placed = irsp->unsli3.rcvsli3.acc_len;
/* Source ID */
bf_set(els_rsp64_sid, &wqe->xmit_els_rsp, irsp->un.rcvels.parmRo);
/* rx-id of the response frame */
bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com, irsp->ulpContext);
/* ox-id of the frame */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
irsp->unsli3.rcvsli3.ox_id);
/* DID */
bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
irsp->un.rcvels.remoteID);
/* unsol data len */
for (i = 0; i < irsp->ulpBdeCount; i++) {
struct lpfc_hbq_entry *hbqe = NULL;
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
if (i == 0) {
hbqe = (struct lpfc_hbq_entry *)
&irsp->un.ulpWord[0];
saveq->wqe.gen_req.bde.tus.f.bdeSize =
hbqe->bde.tus.f.bdeSize;
} else if (i == 1) {
hbqe = (struct lpfc_hbq_entry *)
&irsp->unsli3.sli3Words[4];
saveq->unsol_rcv_len = hbqe->bde.tus.f.bdeSize;
}
}
}
}
/**
* lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @saveq: Pointer to the unsolicited iocb.
*
* This function is called with no lock held by the ring event handler
* when there is an unsolicited iocb posted to the response ring by the
* firmware. This function gets the buffer associated with the iocbs
* and calls the event handler for the ring. This function handles both
* qring buffers and hbq buffers.
* When the function returns 1 the caller can free the iocb object otherwise
* upper layer functions will free the iocb objects.
**/
static int
lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *saveq)
{
IOCB_t * irsp;
WORD5 * w5p;
dma_addr_t paddr;
uint32_t Rctl, Type;
struct lpfc_iocbq *iocbq;
struct lpfc_dmabuf *dmzbuf;
irsp = &saveq->iocb;
saveq->vport = phba->pport;
if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
if (pring->lpfc_sli_rcv_async_status)
pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
else
lpfc_printf_log(phba,
KERN_WARNING,
LOG_SLI,
"0316 Ring %d handler: unexpected "
"ASYNC_STATUS iocb received evt_code "
"0x%x\n",
pring->ringno,
irsp->un.asyncstat.evt_code);
return 1;
}
if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
if (irsp->ulpBdeCount > 0) {
dmzbuf = lpfc_sli_get_buff(phba, pring,
irsp->un.ulpWord[3]);
lpfc_in_buf_free(phba, dmzbuf);
}
if (irsp->ulpBdeCount > 1) {
dmzbuf = lpfc_sli_get_buff(phba, pring,
irsp->unsli3.sli3Words[3]);
lpfc_in_buf_free(phba, dmzbuf);
}
if (irsp->ulpBdeCount > 2) {
dmzbuf = lpfc_sli_get_buff(phba, pring,
irsp->unsli3.sli3Words[7]);
lpfc_in_buf_free(phba, dmzbuf);
}
return 1;
}
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
if (irsp->ulpBdeCount != 0) {
saveq->cmd_dmabuf = lpfc_sli_get_buff(phba, pring,
irsp->un.ulpWord[3]);
if (!saveq->cmd_dmabuf)
lpfc_printf_log(phba,
KERN_ERR,
LOG_SLI,
"0341 Ring %d Cannot find buffer for "
"an unsolicited iocb. tag 0x%x\n",
pring->ringno,
irsp->un.ulpWord[3]);
}
if (irsp->ulpBdeCount == 2) {
saveq->bpl_dmabuf = lpfc_sli_get_buff(phba, pring,
irsp->unsli3.sli3Words[7]);
if (!saveq->bpl_dmabuf)
lpfc_printf_log(phba,
KERN_ERR,
LOG_SLI,
"0342 Ring %d Cannot find buffer for an"
" unsolicited iocb. tag 0x%x\n",
pring->ringno,
irsp->unsli3.sli3Words[7]);
}
list_for_each_entry(iocbq, &saveq->list, list) {
irsp = &iocbq->iocb;
if (irsp->ulpBdeCount != 0) {
iocbq->cmd_dmabuf = lpfc_sli_get_buff(phba,
pring,
irsp->un.ulpWord[3]);
if (!iocbq->cmd_dmabuf)
lpfc_printf_log(phba,
KERN_ERR,
LOG_SLI,
"0343 Ring %d Cannot find "
"buffer for an unsolicited iocb"
". tag 0x%x\n", pring->ringno,
irsp->un.ulpWord[3]);
}
if (irsp->ulpBdeCount == 2) {
iocbq->bpl_dmabuf = lpfc_sli_get_buff(phba,
pring,
irsp->unsli3.sli3Words[7]);
if (!iocbq->bpl_dmabuf)
lpfc_printf_log(phba,
KERN_ERR,
LOG_SLI,
"0344 Ring %d Cannot find "
"buffer for an unsolicited "
"iocb. tag 0x%x\n",
pring->ringno,
irsp->unsli3.sli3Words[7]);
}
}
} else {
paddr = getPaddr(irsp->un.cont64[0].addrHigh,
irsp->un.cont64[0].addrLow);
saveq->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring,
paddr);
if (irsp->ulpBdeCount == 2) {
paddr = getPaddr(irsp->un.cont64[1].addrHigh,
irsp->un.cont64[1].addrLow);
saveq->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba,
pring,
paddr);
}
}
if (irsp->ulpBdeCount != 0 &&
(irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
int found = 0;
/* search continue save q for same XRI */
list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
saveq->iocb.unsli3.rcvsli3.ox_id) {
list_add_tail(&saveq->list, &iocbq->list);
found = 1;
break;
}
}
if (!found)
list_add_tail(&saveq->clist,
&pring->iocb_continue_saveq);
if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
list_del_init(&iocbq->clist);
saveq = iocbq;
irsp = &saveq->iocb;
} else {
return 0;
}
}
if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
(irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
(irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
Rctl = FC_RCTL_ELS_REQ;
Type = FC_TYPE_ELS;
} else {
w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
Rctl = w5p->hcsw.Rctl;
Type = w5p->hcsw.Type;
/* Firmware Workaround */
if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
(irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
Rctl = FC_RCTL_ELS_REQ;
Type = FC_TYPE_ELS;
w5p->hcsw.Rctl = Rctl;
w5p->hcsw.Type = Type;
}
}
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
if (irsp->unsli3.rcvsli3.vpi == 0xffff)
saveq->vport = phba->pport;
else
saveq->vport = lpfc_find_vport_by_vpid(phba,
irsp->unsli3.rcvsli3.vpi);
}
/* Prepare WQE with Unsol frame */
lpfc_sli_prep_unsol_wqe(phba, saveq);
if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0313 Ring %d handler: unexpected Rctl x%x "
"Type x%x received\n",
pring->ringno, Rctl, Type);
return 1;
}
/**
* lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @prspiocb: Pointer to response iocb object.
*
* This function looks up the iocb_lookup table to get the command iocb
* corresponding to the given response iocb using the iotag of the
* response iocb. The driver calls this function with the hbalock held
* for SLI3 ports or the ring lock held for SLI4 ports.
* This function returns the command iocb object if it finds the command
* iocb else returns NULL.
**/
static struct lpfc_iocbq *
lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring,
struct lpfc_iocbq *prspiocb)
{
struct lpfc_iocbq *cmd_iocb = NULL;
u16 iotag;
if (phba->sli_rev == LPFC_SLI_REV4)
iotag = get_wqe_reqtag(prspiocb);
else
iotag = prspiocb->iocb.ulpIoTag;
if (iotag != 0 && iotag <= phba->sli.last_iotag) {
cmd_iocb = phba->sli.iocbq_lookup[iotag];
if (cmd_iocb->cmd_flag & LPFC_IO_ON_TXCMPLQ) {
/* remove from txcmpl queue list */
list_del_init(&cmd_iocb->list);
cmd_iocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
pring->txcmplq_cnt--;
return cmd_iocb;
}
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0317 iotag x%x is out of "
"range: max iotag x%x\n",
iotag, phba->sli.last_iotag);
return NULL;
}
/**
* lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @iotag: IOCB tag.
*
* This function looks up the iocb_lookup table to get the command iocb
* corresponding to the given iotag. The driver calls this function with
* the ring lock held because this function is an SLI4 port only helper.
* This function returns the command iocb object if it finds the command
* iocb else returns NULL.
**/
static struct lpfc_iocbq *
lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring, uint16_t iotag)
{
struct lpfc_iocbq *cmd_iocb = NULL;
if (iotag != 0 && iotag <= phba->sli.last_iotag) {
cmd_iocb = phba->sli.iocbq_lookup[iotag];
if (cmd_iocb->cmd_flag & LPFC_IO_ON_TXCMPLQ) {
/* remove from txcmpl queue list */
list_del_init(&cmd_iocb->list);
cmd_iocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
pring->txcmplq_cnt--;
return cmd_iocb;
}
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0372 iotag x%x lookup error: max iotag (x%x) "
"cmd_flag x%x\n",
iotag, phba->sli.last_iotag,
cmd_iocb ? cmd_iocb->cmd_flag : 0xffff);
return NULL;
}
/**
* lpfc_sli_process_sol_iocb - process solicited iocb completion
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @saveq: Pointer to the response iocb to be processed.
*
* This function is called by the ring event handler for non-fcp
* rings when there is a new response iocb in the response ring.
* The caller is not required to hold any locks. This function
* gets the command iocb associated with the response iocb and
* calls the completion handler for the command iocb. If there
* is no completion handler, the function will free the resources
* associated with command iocb. If the response iocb is for
* an already aborted command iocb, the status of the completion
* is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
* This function always returns 1.
**/
static int
lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *saveq)
{
struct lpfc_iocbq *cmdiocbp;
unsigned long iflag;
u32 ulp_command, ulp_status, ulp_word4, ulp_context, iotag;
if (phba->sli_rev == LPFC_SLI_REV4)
spin_lock_irqsave(&pring->ring_lock, iflag);
else
spin_lock_irqsave(&phba->hbalock, iflag);
cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock_irqrestore(&pring->ring_lock, iflag);
else
spin_unlock_irqrestore(&phba->hbalock, iflag);
ulp_command = get_job_cmnd(phba, saveq);
ulp_status = get_job_ulpstatus(phba, saveq);
ulp_word4 = get_job_word4(phba, saveq);
ulp_context = get_job_ulpcontext(phba, saveq);
if (phba->sli_rev == LPFC_SLI_REV4)
iotag = get_wqe_reqtag(saveq);
else
iotag = saveq->iocb.ulpIoTag;
if (cmdiocbp) {
ulp_command = get_job_cmnd(phba, cmdiocbp);
if (cmdiocbp->cmd_cmpl) {
/*
* If an ELS command failed send an event to mgmt
* application.
*/
if (ulp_status &&
(pring->ringno == LPFC_ELS_RING) &&
(ulp_command == CMD_ELS_REQUEST64_CR))
lpfc_send_els_failure_event(phba,
cmdiocbp, saveq);
/*
* Post all ELS completions to the worker thread.
* All other are passed to the completion callback.
*/
if (pring->ringno == LPFC_ELS_RING) {
if ((phba->sli_rev < LPFC_SLI_REV4) &&
(cmdiocbp->cmd_flag &
LPFC_DRIVER_ABORTED)) {
spin_lock_irqsave(&phba->hbalock,
iflag);
cmdiocbp->cmd_flag &=
~LPFC_DRIVER_ABORTED;
spin_unlock_irqrestore(&phba->hbalock,
iflag);
saveq->iocb.ulpStatus =
IOSTAT_LOCAL_REJECT;
saveq->iocb.un.ulpWord[4] =
IOERR_SLI_ABORTED;
/* Firmware could still be in progress
* of DMAing payload, so don't free data
* buffer till after a hbeat.
*/
spin_lock_irqsave(&phba->hbalock,
iflag);
saveq->cmd_flag |= LPFC_DELAY_MEM_FREE;
spin_unlock_irqrestore(&phba->hbalock,
iflag);
}
if (phba->sli_rev == LPFC_SLI_REV4) {
if (saveq->cmd_flag &
LPFC_EXCHANGE_BUSY) {
/* Set cmdiocb flag for the
* exchange busy so sgl (xri)
* will not be released until
* the abort xri is received
* from hba.
*/
spin_lock_irqsave(
&phba->hbalock, iflag);
cmdiocbp->cmd_flag |=
LPFC_EXCHANGE_BUSY;
spin_unlock_irqrestore(
&phba->hbalock, iflag);
}
if (cmdiocbp->cmd_flag &
LPFC_DRIVER_ABORTED) {
/*
* Clear LPFC_DRIVER_ABORTED
* bit in case it was driver
* initiated abort.
*/
spin_lock_irqsave(
&phba->hbalock, iflag);
cmdiocbp->cmd_flag &=
~LPFC_DRIVER_ABORTED;
spin_unlock_irqrestore(
&phba->hbalock, iflag);
set_job_ulpstatus(cmdiocbp,
IOSTAT_LOCAL_REJECT);
set_job_ulpword4(cmdiocbp,
IOERR_ABORT_REQUESTED);
/*
* For SLI4, irspiocb contains
* NO_XRI in sli_xritag, it
* shall not affect releasing
* sgl (xri) process.
*/
set_job_ulpstatus(saveq,
IOSTAT_LOCAL_REJECT);
set_job_ulpword4(saveq,
IOERR_SLI_ABORTED);
spin_lock_irqsave(
&phba->hbalock, iflag);
saveq->cmd_flag |=
LPFC_DELAY_MEM_FREE;
spin_unlock_irqrestore(
&phba->hbalock, iflag);
}
}
}
cmdiocbp->cmd_cmpl(phba, cmdiocbp, saveq);
} else
lpfc_sli_release_iocbq(phba, cmdiocbp);
} else {
/*
* Unknown initiating command based on the response iotag.
* This could be the case on the ELS ring because of
* lpfc_els_abort().
*/
if (pring->ringno != LPFC_ELS_RING) {
/*
* Ring <ringno> handler: unexpected completion IoTag
* <IoTag>
*/
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0322 Ring %d handler: "
"unexpected completion IoTag x%x "
"Data: x%x x%x x%x x%x\n",
pring->ringno, iotag, ulp_status,
ulp_word4, ulp_command, ulp_context);
}
}
return 1;
}
/**
* lpfc_sli_rsp_pointers_error - Response ring pointer error handler
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* This function is called from the iocb ring event handlers when
* put pointer is ahead of the get pointer for a ring. This function signal
* an error attention condition to the worker thread and the worker
* thread will transition the HBA to offline state.
**/
static void
lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
/*
* Ring <ringno> handler: portRspPut <portRspPut> is bigger than
* rsp ring <portRspMax>
*/
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0312 Ring %d handler: portRspPut %d "
"is bigger than rsp ring %d\n",
pring->ringno, le32_to_cpu(pgp->rspPutInx),
pring->sli.sli3.numRiocb);
phba->link_state = LPFC_HBA_ERROR;
/*
* All error attention handlers are posted to
* worker thread
*/
phba->work_ha |= HA_ERATT;
phba->work_hs = HS_FFER3;
lpfc_worker_wake_up(phba);
return;
}
/**
* lpfc_poll_eratt - Error attention polling timer timeout handler
* @t: Context to fetch pointer to address of HBA context object from.
*
* This function is invoked by the Error Attention polling timer when the
* timer times out. It will check the SLI Error Attention register for
* possible attention events. If so, it will post an Error Attention event
* and wake up worker thread to process it. Otherwise, it will set up the
* Error Attention polling timer for the next poll.
**/
void lpfc_poll_eratt(struct timer_list *t)
{
struct lpfc_hba *phba;
uint32_t eratt = 0;
uint64_t sli_intr, cnt;
phba = from_timer(phba, t, eratt_poll);
if (!(phba->hba_flag & HBA_SETUP))
return;
/* Here we will also keep track of interrupts per sec of the hba */
sli_intr = phba->sli.slistat.sli_intr;
if (phba->sli.slistat.sli_prev_intr > sli_intr)
cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
sli_intr);
else
cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
/* 64-bit integer division not supported on 32-bit x86 - use do_div */
do_div(cnt, phba->eratt_poll_interval);
phba->sli.slistat.sli_ips = cnt;
phba->sli.slistat.sli_prev_intr = sli_intr;
/* Check chip HA register for error event */
eratt = lpfc_sli_check_eratt(phba);
if (eratt)
/* Tell the worker thread there is work to do */
lpfc_worker_wake_up(phba);
else
/* Restart the timer for next eratt poll */
mod_timer(&phba->eratt_poll,
jiffies +
msecs_to_jiffies(1000 * phba->eratt_poll_interval));
return;
}
/**
* lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @mask: Host attention register mask for this ring.
*
* This function is called from the interrupt context when there is a ring
* event for the fcp ring. The caller does not hold any lock.
* The function processes each response iocb in the response ring until it
* finds an iocb with LE bit set and chains all the iocbs up to the iocb with
* LE bit set. The function will call the completion handler of the command iocb
* if the response iocb indicates a completion for a command iocb or it is
* an abort completion. The function will call lpfc_sli_process_unsol_iocb
* function if this is an unsolicited iocb.
* This routine presumes LPFC_FCP_RING handling and doesn't bother
* to check it explicitly.
*/
int
lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring, uint32_t mask)
{
struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
IOCB_t *irsp = NULL;
IOCB_t *entry = NULL;
struct lpfc_iocbq *cmdiocbq = NULL;
struct lpfc_iocbq rspiocbq;
uint32_t status;
uint32_t portRspPut, portRspMax;
int rc = 1;
lpfc_iocb_type type;
unsigned long iflag;
uint32_t rsp_cmpl = 0;
spin_lock_irqsave(&phba->hbalock, iflag);
pring->stats.iocb_event++;
/*
* The next available response entry should never exceed the maximum
* entries. If it does, treat it as an adapter hardware error.
*/
portRspMax = pring->sli.sli3.numRiocb;
portRspPut = le32_to_cpu(pgp->rspPutInx);
if (unlikely(portRspPut >= portRspMax)) {
lpfc_sli_rsp_pointers_error(phba, pring);
spin_unlock_irqrestore(&phba->hbalock, iflag);
return 1;
}
if (phba->fcp_ring_in_use) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
return 1;
} else
phba->fcp_ring_in_use = 1;
rmb();
while (pring->sli.sli3.rspidx != portRspPut) {
/*
* Fetch an entry off the ring and copy it into a local data
* structure. The copy involves a byte-swap since the
* network byte order and pci byte orders are different.
*/
entry = lpfc_resp_iocb(phba, pring);
phba->last_completion_time = jiffies;
if (++pring->sli.sli3.rspidx >= portRspMax)
pring->sli.sli3.rspidx = 0;
lpfc_sli_pcimem_bcopy((uint32_t *) entry,
(uint32_t *) &rspiocbq.iocb,
phba->iocb_rsp_size);
INIT_LIST_HEAD(&(rspiocbq.list));
irsp = &rspiocbq.iocb;
type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
pring->stats.iocb_rsp++;
rsp_cmpl++;
if (unlikely(irsp->ulpStatus)) {
/*
* If resource errors reported from HBA, reduce
* queuedepths of the SCSI device.
*/
if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
IOERR_NO_RESOURCES)) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
phba->lpfc_rampdown_queue_depth(phba);
spin_lock_irqsave(&phba->hbalock, iflag);
}
/* Rsp ring <ringno> error: IOCB */
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0336 Rsp Ring %d error: IOCB Data: "
"x%x x%x x%x x%x x%x x%x x%x x%x\n",
pring->ringno,
irsp->un.ulpWord[0],
irsp->un.ulpWord[1],
irsp->un.ulpWord[2],
irsp->un.ulpWord[3],
irsp->un.ulpWord[4],
irsp->un.ulpWord[5],
*(uint32_t *)&irsp->un1,
*((uint32_t *)&irsp->un1 + 1));
}
switch (type) {
case LPFC_ABORT_IOCB:
case LPFC_SOL_IOCB:
/*
* Idle exchange closed via ABTS from port. No iocb
* resources need to be recovered.
*/
if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0333 IOCB cmd 0x%x"
" processed. Skipping"
" completion\n",
irsp->ulpCommand);
break;
}
cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
&rspiocbq);
if (unlikely(!cmdiocbq))
break;
if (cmdiocbq->cmd_flag & LPFC_DRIVER_ABORTED)
cmdiocbq->cmd_flag &= ~LPFC_DRIVER_ABORTED;
if (cmdiocbq->cmd_cmpl) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
cmdiocbq->cmd_cmpl(phba, cmdiocbq, &rspiocbq);
spin_lock_irqsave(&phba->hbalock, iflag);
}
break;
case LPFC_UNSOL_IOCB:
spin_unlock_irqrestore(&phba->hbalock, iflag);
lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
spin_lock_irqsave(&phba->hbalock, iflag);
break;
default:
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
char adaptermsg[LPFC_MAX_ADPTMSG];
memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
memcpy(&adaptermsg[0], (uint8_t *) irsp,
MAX_MSG_DATA);
dev_warn(&((phba->pcidev)->dev),
"lpfc%d: %s\n",
phba->brd_no, adaptermsg);
} else {
/* Unknown IOCB command */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0334 Unknown IOCB command "
"Data: x%x, x%x x%x x%x x%x\n",
type, irsp->ulpCommand,
irsp->ulpStatus,
irsp->ulpIoTag,
irsp->ulpContext);
}
break;
}
/*
* The response IOCB has been processed. Update the ring
* pointer in SLIM. If the port response put pointer has not
* been updated, sync the pgp->rspPutInx and fetch the new port
* response put pointer.
*/
writel(pring->sli.sli3.rspidx,
&phba->host_gp[pring->ringno].rspGetInx);
if (pring->sli.sli3.rspidx == portRspPut)
portRspPut = le32_to_cpu(pgp->rspPutInx);
}
if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
pring->stats.iocb_rsp_full++;
status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
writel(status, phba->CAregaddr);
readl(phba->CAregaddr);
}
if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
pring->stats.iocb_cmd_empty++;
/* Force update of the local copy of cmdGetInx */
pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
lpfc_sli_resume_iocb(phba, pring);
if ((pring->lpfc_sli_cmd_available))
(pring->lpfc_sli_cmd_available) (phba, pring);
}
phba->fcp_ring_in_use = 0;
spin_unlock_irqrestore(&phba->hbalock, iflag);
return rc;
}
/**
* lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @rspiocbp: Pointer to driver response IOCB object.
*
* This function is called from the worker thread when there is a slow-path
* response IOCB to process. This function chains all the response iocbs until
* seeing the iocb with the LE bit set. The function will call
* lpfc_sli_process_sol_iocb function if the response iocb indicates a
* completion of a command iocb. The function will call the
* lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
* The function frees the resources or calls the completion handler if this
* iocb is an abort completion. The function returns NULL when the response
* iocb has the LE bit set and all the chained iocbs are processed, otherwise
* this function shall chain the iocb on to the iocb_continueq and return the
* response iocb passed in.
**/
static struct lpfc_iocbq *
lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *rspiocbp)
{
struct lpfc_iocbq *saveq;
struct lpfc_iocbq *cmdiocb;
struct lpfc_iocbq *next_iocb;
IOCB_t *irsp;
uint32_t free_saveq;
u8 cmd_type;
lpfc_iocb_type type;
unsigned long iflag;
u32 ulp_status = get_job_ulpstatus(phba, rspiocbp);
u32 ulp_word4 = get_job_word4(phba, rspiocbp);
u32 ulp_command = get_job_cmnd(phba, rspiocbp);
int rc;
spin_lock_irqsave(&phba->hbalock, iflag);
/* First add the response iocb to the countinueq list */
list_add_tail(&rspiocbp->list, &pring->iocb_continueq);
pring->iocb_continueq_cnt++;
/*
* By default, the driver expects to free all resources
* associated with this iocb completion.
*/
free_saveq = 1;
saveq = list_get_first(&pring->iocb_continueq,
struct lpfc_iocbq, list);
list_del_init(&pring->iocb_continueq);
pring->iocb_continueq_cnt = 0;
pring->stats.iocb_rsp++;
/*
* If resource errors reported from HBA, reduce
* queuedepths of the SCSI device.
*/
if (ulp_status == IOSTAT_LOCAL_REJECT &&
((ulp_word4 & IOERR_PARAM_MASK) ==
IOERR_NO_RESOURCES)) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
phba->lpfc_rampdown_queue_depth(phba);
spin_lock_irqsave(&phba->hbalock, iflag);
}
if (ulp_status) {
/* Rsp ring <ringno> error: IOCB */
if (phba->sli_rev < LPFC_SLI_REV4) {
irsp = &rspiocbp->iocb;
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0328 Rsp Ring %d error: ulp_status x%x "
"IOCB Data: "
"x%08x x%08x x%08x x%08x "
"x%08x x%08x x%08x x%08x "
"x%08x x%08x x%08x x%08x "
"x%08x x%08x x%08x x%08x\n",
pring->ringno, ulp_status,
get_job_ulpword(rspiocbp, 0),
get_job_ulpword(rspiocbp, 1),
get_job_ulpword(rspiocbp, 2),
get_job_ulpword(rspiocbp, 3),
get_job_ulpword(rspiocbp, 4),
get_job_ulpword(rspiocbp, 5),
*(((uint32_t *)irsp) + 6),
*(((uint32_t *)irsp) + 7),
*(((uint32_t *)irsp) + 8),
*(((uint32_t *)irsp) + 9),
*(((uint32_t *)irsp) + 10),
*(((uint32_t *)irsp) + 11),
*(((uint32_t *)irsp) + 12),
*(((uint32_t *)irsp) + 13),
*(((uint32_t *)irsp) + 14),
*(((uint32_t *)irsp) + 15));
} else {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0321 Rsp Ring %d error: "
"IOCB Data: "
"x%x x%x x%x x%x\n",
pring->ringno,
rspiocbp->wcqe_cmpl.word0,
rspiocbp->wcqe_cmpl.total_data_placed,
rspiocbp->wcqe_cmpl.parameter,
rspiocbp->wcqe_cmpl.word3);
}
}
/*
* Fetch the iocb command type and call the correct completion
* routine. Solicited and Unsolicited IOCBs on the ELS ring
* get freed back to the lpfc_iocb_list by the discovery
* kernel thread.
*/
cmd_type = ulp_command & CMD_IOCB_MASK;
type = lpfc_sli_iocb_cmd_type(cmd_type);
switch (type) {
case LPFC_SOL_IOCB:
spin_unlock_irqrestore(&phba->hbalock, iflag);
rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
spin_lock_irqsave(&phba->hbalock, iflag);
break;
case LPFC_UNSOL_IOCB:
spin_unlock_irqrestore(&phba->hbalock, iflag);
rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
spin_lock_irqsave(&phba->hbalock, iflag);
if (!rc)
free_saveq = 0;
break;
case LPFC_ABORT_IOCB:
cmdiocb = NULL;
if (ulp_command != CMD_XRI_ABORTED_CX)
cmdiocb = lpfc_sli_iocbq_lookup(phba, pring,
saveq);
if (cmdiocb) {
/* Call the specified completion routine */
if (cmdiocb->cmd_cmpl) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
cmdiocb->cmd_cmpl(phba, cmdiocb, saveq);
spin_lock_irqsave(&phba->hbalock, iflag);
} else {
__lpfc_sli_release_iocbq(phba, cmdiocb);
}
}
break;
case LPFC_UNKNOWN_IOCB:
if (ulp_command == CMD_ADAPTER_MSG) {
char adaptermsg[LPFC_MAX_ADPTMSG];
memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
memcpy(&adaptermsg[0], (uint8_t *)&rspiocbp->wqe,
MAX_MSG_DATA);
dev_warn(&((phba->pcidev)->dev),
"lpfc%d: %s\n",
phba->brd_no, adaptermsg);
} else {
/* Unknown command */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0335 Unknown IOCB "
"command Data: x%x "
"x%x x%x x%x\n",
ulp_command,
ulp_status,
get_wqe_reqtag(rspiocbp),
get_job_ulpcontext(phba, rspiocbp));
}
break;
}
if (free_saveq) {
list_for_each_entry_safe(rspiocbp, next_iocb,
&saveq->list, list) {
list_del_init(&rspiocbp->list);
__lpfc_sli_release_iocbq(phba, rspiocbp);
}
__lpfc_sli_release_iocbq(phba, saveq);
}
rspiocbp = NULL;
spin_unlock_irqrestore(&phba->hbalock, iflag);
return rspiocbp;
}
/**
* lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @mask: Host attention register mask for this ring.
*
* This routine wraps the actual slow_ring event process routine from the
* API jump table function pointer from the lpfc_hba struct.
**/
void
lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring, uint32_t mask)
{
phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
}
/**
* lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @mask: Host attention register mask for this ring.
*
* This function is called from the worker thread when there is a ring event
* for non-fcp rings. The caller does not hold any lock. The function will
* remove each response iocb in the response ring and calls the handle
* response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
**/
static void
lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring, uint32_t mask)
{
struct lpfc_pgp *pgp;
IOCB_t *entry;
IOCB_t *irsp = NULL;
struct lpfc_iocbq *rspiocbp = NULL;
uint32_t portRspPut, portRspMax;
unsigned long iflag;
uint32_t status;
pgp = &phba->port_gp[pring->ringno];
spin_lock_irqsave(&phba->hbalock, iflag);
pring->stats.iocb_event++;
/*
* The next available response entry should never exceed the maximum
* entries. If it does, treat it as an adapter hardware error.
*/
portRspMax = pring->sli.sli3.numRiocb;
portRspPut = le32_to_cpu(pgp->rspPutInx);
if (portRspPut >= portRspMax) {
/*
* Ring <ringno> handler: portRspPut <portRspPut> is bigger than
* rsp ring <portRspMax>
*/
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0303 Ring %d handler: portRspPut %d "
"is bigger than rsp ring %d\n",
pring->ringno, portRspPut, portRspMax);
phba->link_state = LPFC_HBA_ERROR;
spin_unlock_irqrestore(&phba->hbalock, iflag);
phba->work_hs = HS_FFER3;
lpfc_handle_eratt(phba);
return;
}
rmb();
while (pring->sli.sli3.rspidx != portRspPut) {
/*
* Build a completion list and call the appropriate handler.
* The process is to get the next available response iocb, get
* a free iocb from the list, copy the response data into the
* free iocb, insert to the continuation list, and update the
* next response index to slim. This process makes response
* iocb's in the ring available to DMA as fast as possible but
* pays a penalty for a copy operation. Since the iocb is
* only 32 bytes, this penalty is considered small relative to
* the PCI reads for register values and a slim write. When
* the ulpLe field is set, the entire Command has been
* received.
*/
entry = lpfc_resp_iocb(phba, pring);
phba->last_completion_time = jiffies;
rspiocbp = __lpfc_sli_get_iocbq(phba);
if (rspiocbp == NULL) {
printk(KERN_ERR "%s: out of buffers! Failing "
"completion.\n", __func__);
break;
}
lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
phba->iocb_rsp_size);
irsp = &rspiocbp->iocb;
if (++pring->sli.sli3.rspidx >= portRspMax)
pring->sli.sli3.rspidx = 0;
if (pring->ringno == LPFC_ELS_RING) {
lpfc_debugfs_slow_ring_trc(phba,
"IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
*(((uint32_t *) irsp) + 4),
*(((uint32_t *) irsp) + 6),
*(((uint32_t *) irsp) + 7));
}
writel(pring->sli.sli3.rspidx,
&phba->host_gp[pring->ringno].rspGetInx);
spin_unlock_irqrestore(&phba->hbalock, iflag);
/* Handle the response IOCB */
rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
spin_lock_irqsave(&phba->hbalock, iflag);
/*
* If the port response put pointer has not been updated, sync
* the pgp->rspPutInx in the MAILBOX_tand fetch the new port
* response put pointer.
*/
if (pring->sli.sli3.rspidx == portRspPut) {
portRspPut = le32_to_cpu(pgp->rspPutInx);
}
} /* while (pring->sli.sli3.rspidx != portRspPut) */
if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
/* At least one response entry has been freed */
pring->stats.iocb_rsp_full++;
/* SET RxRE_RSP in Chip Att register */
status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
writel(status, phba->CAregaddr);
readl(phba->CAregaddr); /* flush */
}
if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
pring->stats.iocb_cmd_empty++;
/* Force update of the local copy of cmdGetInx */
pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
lpfc_sli_resume_iocb(phba, pring);
if ((pring->lpfc_sli_cmd_available))
(pring->lpfc_sli_cmd_available) (phba, pring);
}
spin_unlock_irqrestore(&phba->hbalock, iflag);
return;
}
/**
* lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @mask: Host attention register mask for this ring.
*
* This function is called from the worker thread when there is a pending
* ELS response iocb on the driver internal slow-path response iocb worker
* queue. The caller does not hold any lock. The function will remove each
* response iocb from the response worker queue and calls the handle
* response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
**/
static void
lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring, uint32_t mask)
{
struct lpfc_iocbq *irspiocbq;
struct hbq_dmabuf *dmabuf;
struct lpfc_cq_event *cq_event;
unsigned long iflag;
int count = 0;
spin_lock_irqsave(&phba->hbalock, iflag);
phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
spin_unlock_irqrestore(&phba->hbalock, iflag);
while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
/* Get the response iocb from the head of work queue */
spin_lock_irqsave(&phba->hbalock, iflag);
list_remove_head(&phba->sli4_hba.sp_queue_event,
cq_event, struct lpfc_cq_event, list);
spin_unlock_irqrestore(&phba->hbalock, iflag);
switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
case CQE_CODE_COMPL_WQE:
irspiocbq = container_of(cq_event, struct lpfc_iocbq,
cq_event);
/* Translate ELS WCQE to response IOCBQ */
irspiocbq = lpfc_sli4_els_preprocess_rspiocbq(phba,
irspiocbq);
if (irspiocbq)
lpfc_sli_sp_handle_rspiocb(phba, pring,
irspiocbq);
count++;
break;
case CQE_CODE_RECEIVE:
case CQE_CODE_RECEIVE_V1:
dmabuf = container_of(cq_event, struct hbq_dmabuf,
cq_event);
lpfc_sli4_handle_received_buffer(phba, dmabuf);
count++;
break;
default:
break;
}
/* Limit the number of events to 64 to avoid soft lockups */
if (count == 64)
break;
}
}
/**
* lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
*
* This function aborts all iocbs in the given ring and frees all the iocb
* objects in txq. This function issues an abort iocb for all the iocb commands
* in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
* the return of this function. The caller is not required to hold any locks.
**/
void
lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
{
LIST_HEAD(tx_completions);
LIST_HEAD(txcmplq_completions);
struct lpfc_iocbq *iocb, *next_iocb;
int offline;
if (pring->ringno == LPFC_ELS_RING) {
lpfc_fabric_abort_hba(phba);
}
offline = pci_channel_offline(phba->pcidev);
/* Error everything on txq and txcmplq
* First do the txq.
*/
if (phba->sli_rev >= LPFC_SLI_REV4) {
spin_lock_irq(&pring->ring_lock);
list_splice_init(&pring->txq, &tx_completions);
pring->txq_cnt = 0;
if (offline) {
list_splice_init(&pring->txcmplq,
&txcmplq_completions);
} else {
/* Next issue ABTS for everything on the txcmplq */
list_for_each_entry_safe(iocb, next_iocb,
&pring->txcmplq, list)
lpfc_sli_issue_abort_iotag(phba, pring,
iocb, NULL);
}
spin_unlock_irq(&pring->ring_lock);
} else {
spin_lock_irq(&phba->hbalock);
list_splice_init(&pring->txq, &tx_completions);
pring->txq_cnt = 0;
if (offline) {
list_splice_init(&pring->txcmplq, &txcmplq_completions);
} else {
/* Next issue ABTS for everything on the txcmplq */
list_for_each_entry_safe(iocb, next_iocb,
&pring->txcmplq, list)
lpfc_sli_issue_abort_iotag(phba, pring,
iocb, NULL);
}
spin_unlock_irq(&phba->hbalock);
}
if (offline) {
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &txcmplq_completions,
IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
} else {
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
}
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &tx_completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
}
/**
* lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
* @phba: Pointer to HBA context object.
*
* This function aborts all iocbs in FCP rings and frees all the iocb
* objects in txq. This function issues an abort iocb for all the iocb commands
* in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
* the return of this function. The caller is not required to hold any locks.
**/
void
lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
uint32_t i;
/* Look on all the FCP Rings for the iotag */
if (phba->sli_rev >= LPFC_SLI_REV4) {
for (i = 0; i < phba->cfg_hdw_queue; i++) {
pring = phba->sli4_hba.hdwq[i].io_wq->pring;
lpfc_sli_abort_iocb_ring(phba, pring);
}
} else {
pring = &psli->sli3_ring[LPFC_FCP_RING];
lpfc_sli_abort_iocb_ring(phba, pring);
}
}
/**
* lpfc_sli_flush_io_rings - flush all iocbs in the IO ring
* @phba: Pointer to HBA context object.
*
* This function flushes all iocbs in the IO ring and frees all the iocb
* objects in txq and txcmplq. This function will not issue abort iocbs
* for all the iocb commands in txcmplq, they will just be returned with
* IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
* slot has been permanently disabled.
**/
void
lpfc_sli_flush_io_rings(struct lpfc_hba *phba)
{
LIST_HEAD(txq);
LIST_HEAD(txcmplq);
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
uint32_t i;
struct lpfc_iocbq *piocb, *next_iocb;
spin_lock_irq(&phba->hbalock);
/* Indicate the I/O queues are flushed */
phba->hba_flag |= HBA_IOQ_FLUSH;
spin_unlock_irq(&phba->hbalock);
/* Look on all the FCP Rings for the iotag */
if (phba->sli_rev >= LPFC_SLI_REV4) {
for (i = 0; i < phba->cfg_hdw_queue; i++) {
pring = phba->sli4_hba.hdwq[i].io_wq->pring;
spin_lock_irq(&pring->ring_lock);
/* Retrieve everything on txq */
list_splice_init(&pring->txq, &txq);
list_for_each_entry_safe(piocb, next_iocb,
&pring->txcmplq, list)
piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
/* Retrieve everything on the txcmplq */
list_splice_init(&pring->txcmplq, &txcmplq);
pring->txq_cnt = 0;
pring->txcmplq_cnt = 0;
spin_unlock_irq(&pring->ring_lock);
/* Flush the txq */
lpfc_sli_cancel_iocbs(phba, &txq,
IOSTAT_LOCAL_REJECT,
IOERR_SLI_DOWN);
/* Flush the txcmplq */
lpfc_sli_cancel_iocbs(phba, &txcmplq,
IOSTAT_LOCAL_REJECT,
IOERR_SLI_DOWN);
if (unlikely(pci_channel_offline(phba->pcidev)))
lpfc_sli4_io_xri_aborted(phba, NULL, 0);
}
} else {
pring = &psli->sli3_ring[LPFC_FCP_RING];
spin_lock_irq(&phba->hbalock);
/* Retrieve everything on txq */
list_splice_init(&pring->txq, &txq);
list_for_each_entry_safe(piocb, next_iocb,
&pring->txcmplq, list)
piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
/* Retrieve everything on the txcmplq */
list_splice_init(&pring->txcmplq, &txcmplq);
pring->txq_cnt = 0;
pring->txcmplq_cnt = 0;
spin_unlock_irq(&phba->hbalock);
/* Flush the txq */
lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
IOERR_SLI_DOWN);
/* Flush the txcmpq */
lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
IOERR_SLI_DOWN);
}
}
/**
* lpfc_sli_brdready_s3 - Check for sli3 host ready status
* @phba: Pointer to HBA context object.
* @mask: Bit mask to be checked.
*
* This function reads the host status register and compares
* with the provided bit mask to check if HBA completed
* the restart. This function will wait in a loop for the
* HBA to complete restart. If the HBA does not restart within
* 15 iterations, the function will reset the HBA again. The
* function returns 1 when HBA fail to restart otherwise returns
* zero.
**/
static int
lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
{
uint32_t status;
int i = 0;
int retval = 0;
/* Read the HBA Host Status Register */
if (lpfc_readl(phba->HSregaddr, &status))
return 1;
phba->hba_flag |= HBA_NEEDS_CFG_PORT;
/*
* Check status register every 100ms for 5 retries, then every
* 500ms for 5, then every 2.5 sec for 5, then reset board and
* every 2.5 sec for 4.
* Break our of the loop if errors occurred during init.
*/
while (((status & mask) != mask) &&
!(status & HS_FFERM) &&
i++ < 20) {
if (i <= 5)
msleep(10);
else if (i <= 10)
msleep(500);
else
msleep(2500);
if (i == 15) {
/* Do post */
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
lpfc_sli_brdrestart(phba);
}
/* Read the HBA Host Status Register */
if (lpfc_readl(phba->HSregaddr, &status)) {
retval = 1;
break;
}
}
/* Check to see if any errors occurred during init */
if ((status & HS_FFERM) || (i >= 20)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2751 Adapter failed to restart, "
"status reg x%x, FW Data: A8 x%x AC x%x\n",
status,
readl(phba->MBslimaddr + 0xa8),
readl(phba->MBslimaddr + 0xac));
phba->link_state = LPFC_HBA_ERROR;
retval = 1;
}
return retval;
}
/**
* lpfc_sli_brdready_s4 - Check for sli4 host ready status
* @phba: Pointer to HBA context object.
* @mask: Bit mask to be checked.
*
* This function checks the host status register to check if HBA is
* ready. This function will wait in a loop for the HBA to be ready
* If the HBA is not ready , the function will will reset the HBA PCI
* function again. The function returns 1 when HBA fail to be ready
* otherwise returns zero.
**/
static int
lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
{
uint32_t status;
int retval = 0;
/* Read the HBA Host Status Register */
status = lpfc_sli4_post_status_check(phba);
if (status) {
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
lpfc_sli_brdrestart(phba);
status = lpfc_sli4_post_status_check(phba);
}
/* Check to see if any errors occurred during init */
if (status) {
phba->link_state = LPFC_HBA_ERROR;
retval = 1;
} else
phba->sli4_hba.intr_enable = 0;
phba->hba_flag &= ~HBA_SETUP;
return retval;
}
/**
* lpfc_sli_brdready - Wrapper func for checking the hba readyness
* @phba: Pointer to HBA context object.
* @mask: Bit mask to be checked.
*
* This routine wraps the actual SLI3 or SLI4 hba readyness check routine
* from the API jump table function pointer from the lpfc_hba struct.
**/
int
lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
{
return phba->lpfc_sli_brdready(phba, mask);
}
#define BARRIER_TEST_PATTERN (0xdeadbeef)
/**
* lpfc_reset_barrier - Make HBA ready for HBA reset
* @phba: Pointer to HBA context object.
*
* This function is called before resetting an HBA. This function is called
* with hbalock held and requests HBA to quiesce DMAs before a reset.
**/
void lpfc_reset_barrier(struct lpfc_hba *phba)
{
uint32_t __iomem *resp_buf;
uint32_t __iomem *mbox_buf;
volatile struct MAILBOX_word0 mbox;
uint32_t hc_copy, ha_copy, resp_data;
int i;
uint8_t hdrtype;
lockdep_assert_held(&phba->hbalock);
pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
if (hdrtype != 0x80 ||
(FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
return;
/*
* Tell the other part of the chip to suspend temporarily all
* its DMA activity.
*/
resp_buf = phba->MBslimaddr;
/* Disable the error attention */
if (lpfc_readl(phba->HCregaddr, &hc_copy))
return;
writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
phba->link_flag |= LS_IGNORE_ERATT;
if (lpfc_readl(phba->HAregaddr, &ha_copy))
return;
if (ha_copy & HA_ERATT) {
/* Clear Chip error bit */
writel(HA_ERATT, phba->HAregaddr);
phba->pport->stopped = 1;
}
mbox.word0 = 0;
mbox.mbxCommand = MBX_KILL_BOARD;
mbox.mbxOwner = OWN_CHIP;
writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
mbox_buf = phba->MBslimaddr;
writel(mbox.word0, mbox_buf);
for (i = 0; i < 50; i++) {
if (lpfc_readl((resp_buf + 1), &resp_data))
return;
if (resp_data != ~(BARRIER_TEST_PATTERN))
mdelay(1);
else
break;
}
resp_data = 0;
if (lpfc_readl((resp_buf + 1), &resp_data))
return;
if (resp_data != ~(BARRIER_TEST_PATTERN)) {
if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
phba->pport->stopped)
goto restore_hc;
else
goto clear_errat;
}
mbox.mbxOwner = OWN_HOST;
resp_data = 0;
for (i = 0; i < 500; i++) {
if (lpfc_readl(resp_buf, &resp_data))
return;
if (resp_data != mbox.word0)
mdelay(1);
else
break;
}
clear_errat:
while (++i < 500) {
if (lpfc_readl(phba->HAregaddr, &ha_copy))
return;
if (!(ha_copy & HA_ERATT))
mdelay(1);
else
break;
}
if (readl(phba->HAregaddr) & HA_ERATT) {
writel(HA_ERATT, phba->HAregaddr);
phba->pport->stopped = 1;
}
restore_hc:
phba->link_flag &= ~LS_IGNORE_ERATT;
writel(hc_copy, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
/**
* lpfc_sli_brdkill - Issue a kill_board mailbox command
* @phba: Pointer to HBA context object.
*
* This function issues a kill_board mailbox command and waits for
* the error attention interrupt. This function is called for stopping
* the firmware processing. The caller is not required to hold any
* locks. This function calls lpfc_hba_down_post function to free
* any pending commands after the kill. The function will return 1 when it
* fails to kill the board else will return 0.
**/
int
lpfc_sli_brdkill(struct lpfc_hba *phba)
{
struct lpfc_sli *psli;
LPFC_MBOXQ_t *pmb;
uint32_t status;
uint32_t ha_copy;
int retval;
int i = 0;
psli = &phba->sli;
/* Kill HBA */
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0329 Kill HBA Data: x%x x%x\n",
phba->pport->port_state, psli->sli_flag);
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb)
return 1;
/* Disable the error attention */
spin_lock_irq(&phba->hbalock);
if (lpfc_readl(phba->HCregaddr, &status)) {
spin_unlock_irq(&phba->hbalock);
mempool_free(pmb, phba->mbox_mem_pool);
return 1;
}
status &= ~HC_ERINT_ENA;
writel(status, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
phba->link_flag |= LS_IGNORE_ERATT;
spin_unlock_irq(&phba->hbalock);
lpfc_kill_board(phba, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (retval != MBX_SUCCESS) {
if (retval != MBX_BUSY)
mempool_free(pmb, phba->mbox_mem_pool);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2752 KILL_BOARD command failed retval %d\n",
retval);
spin_lock_irq(&phba->hbalock);
phba->link_flag &= ~LS_IGNORE_ERATT;
spin_unlock_irq(&phba->hbalock);
return 1;
}
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
mempool_free(pmb, phba->mbox_mem_pool);
/* There is no completion for a KILL_BOARD mbox cmd. Check for an error
* attention every 100ms for 3 seconds. If we don't get ERATT after
* 3 seconds we still set HBA_ERROR state because the status of the
* board is now undefined.
*/
if (lpfc_readl(phba->HAregaddr, &ha_copy))
return 1;
while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
mdelay(100);
if (lpfc_readl(phba->HAregaddr, &ha_copy))
return 1;
}
del_timer_sync(&psli->mbox_tmo);
if (ha_copy & HA_ERATT) {
writel(HA_ERATT, phba->HAregaddr);
phba->pport->stopped = 1;
}
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
psli->mbox_active = NULL;
phba->link_flag &= ~LS_IGNORE_ERATT;
spin_unlock_irq(&phba->hbalock);
lpfc_hba_down_post(phba);
phba->link_state = LPFC_HBA_ERROR;
return ha_copy & HA_ERATT ? 0 : 1;
}
/**
* lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
* @phba: Pointer to HBA context object.
*
* This function resets the HBA by writing HC_INITFF to the control
* register. After the HBA resets, this function resets all the iocb ring
* indices. This function disables PCI layer parity checking during
* the reset.
* This function returns 0 always.
* The caller is not required to hold any locks.
**/
int
lpfc_sli_brdreset(struct lpfc_hba *phba)
{
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
uint16_t cfg_value;
int i;
psli = &phba->sli;
/* Reset HBA */
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0325 Reset HBA Data: x%x x%x\n",
(phba->pport) ? phba->pport->port_state : 0,
psli->sli_flag);
/* perform board reset */
phba->fc_eventTag = 0;
phba->link_events = 0;
phba->hba_flag |= HBA_NEEDS_CFG_PORT;
if (phba->pport) {
phba->pport->fc_myDID = 0;
phba->pport->fc_prevDID = 0;
}
/* Turn off parity checking and serr during the physical reset */
if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value))
return -EIO;
pci_write_config_word(phba->pcidev, PCI_COMMAND,
(cfg_value &
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
/* Now toggle INITFF bit in the Host Control Register */
writel(HC_INITFF, phba->HCregaddr);
mdelay(1);
readl(phba->HCregaddr); /* flush */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* Restore PCI cmd register */
pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
/* Initialize relevant SLI info */
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
pring->flag = 0;
pring->sli.sli3.rspidx = 0;
pring->sli.sli3.next_cmdidx = 0;
pring->sli.sli3.local_getidx = 0;
pring->sli.sli3.cmdidx = 0;
pring->missbufcnt = 0;
}
phba->link_state = LPFC_WARM_START;
return 0;
}
/**
* lpfc_sli4_brdreset - Reset a sli-4 HBA
* @phba: Pointer to HBA context object.
*
* This function resets a SLI4 HBA. This function disables PCI layer parity
* checking during resets the device. The caller is not required to hold
* any locks.
*
* This function returns 0 on success else returns negative error code.
**/
int
lpfc_sli4_brdreset(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
uint16_t cfg_value;
int rc = 0;
/* Reset HBA */
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0295 Reset HBA Data: x%x x%x x%x\n",
phba->pport->port_state, psli->sli_flag,
phba->hba_flag);
/* perform board reset */
phba->fc_eventTag = 0;
phba->link_events = 0;
phba->pport->fc_myDID = 0;
phba->pport->fc_prevDID = 0;
phba->hba_flag &= ~HBA_SETUP;
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~(LPFC_PROCESS_LA);
phba->fcf.fcf_flag = 0;
spin_unlock_irq(&phba->hbalock);
/* Now physically reset the device */
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0389 Performing PCI function reset!\n");
/* Turn off parity checking and serr during the physical reset */
if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value)) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3205 PCI read Config failed\n");
return -EIO;
}
pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
/* Perform FCoE PCI function reset before freeing queue memory */
rc = lpfc_pci_function_reset(phba);
/* Restore PCI cmd register */
pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
return rc;
}
/**
* lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
* @phba: Pointer to HBA context object.
*
* This function is called in the SLI initialization code path to
* restart the HBA. The caller is not required to hold any lock.
* This function writes MBX_RESTART mailbox command to the SLIM and
* resets the HBA. At the end of the function, it calls lpfc_hba_down_post
* function to free any pending commands. The function enables
* POST only during the first initialization. The function returns zero.
* The function does not guarantee completion of MBX_RESTART mailbox
* command before the return of this function.
**/
static int
lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
{
volatile struct MAILBOX_word0 mb;
struct lpfc_sli *psli;
void __iomem *to_slim;
spin_lock_irq(&phba->hbalock);
psli = &phba->sli;
/* Restart HBA */
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0337 Restart HBA Data: x%x x%x\n",
(phba->pport) ? phba->pport->port_state : 0,
psli->sli_flag);
mb.word0 = 0;
mb.mbxCommand = MBX_RESTART;
mb.mbxHc = 1;
lpfc_reset_barrier(phba);
to_slim = phba->MBslimaddr;
writel(mb.word0, to_slim);
readl(to_slim); /* flush */
/* Only skip post after fc_ffinit is completed */
if (phba->pport && phba->pport->port_state)
mb.word0 = 1; /* This is really setting up word1 */
else
mb.word0 = 0; /* This is really setting up word1 */
to_slim = phba->MBslimaddr + sizeof (uint32_t);
writel(mb.word0, to_slim);
readl(to_slim); /* flush */
lpfc_sli_brdreset(phba);
if (phba->pport)
phba->pport->stopped = 0;
phba->link_state = LPFC_INIT_START;
phba->hba_flag = 0;
spin_unlock_irq(&phba->hbalock);
memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
psli->stats_start = ktime_get_seconds();
/* Give the INITFF and Post time to settle. */
mdelay(100);
lpfc_hba_down_post(phba);
return 0;
}
/**
* lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
* @phba: Pointer to HBA context object.
*
* This function is called in the SLI initialization code path to restart
* a SLI4 HBA. The caller is not required to hold any lock.
* At the end of the function, it calls lpfc_hba_down_post function to
* free any pending commands.
**/
static int
lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
int rc;
/* Restart HBA */
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0296 Restart HBA Data: x%x x%x\n",
phba->pport->port_state, psli->sli_flag);
rc = lpfc_sli4_brdreset(phba);
if (rc) {
phba->link_state = LPFC_HBA_ERROR;
goto hba_down_queue;
}
spin_lock_irq(&phba->hbalock);
phba->pport->stopped = 0;
phba->link_state = LPFC_INIT_START;
phba->hba_flag = 0;
/* Preserve FA-PWWN expectation */
phba->sli4_hba.fawwpn_flag &= LPFC_FAWWPN_FABRIC;
spin_unlock_irq(&phba->hbalock);
memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
psli->stats_start = ktime_get_seconds();
hba_down_queue:
lpfc_hba_down_post(phba);
lpfc_sli4_queue_destroy(phba);
return rc;
}
/**
* lpfc_sli_brdrestart - Wrapper func for restarting hba
* @phba: Pointer to HBA context object.
*
* This routine wraps the actual SLI3 or SLI4 hba restart routine from the
* API jump table function pointer from the lpfc_hba struct.
**/
int
lpfc_sli_brdrestart(struct lpfc_hba *phba)
{
return phba->lpfc_sli_brdrestart(phba);
}
/**
* lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
* @phba: Pointer to HBA context object.
*
* This function is called after a HBA restart to wait for successful
* restart of the HBA. Successful restart of the HBA is indicated by
* HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
* iteration, the function will restart the HBA again. The function returns
* zero if HBA successfully restarted else returns negative error code.
**/
int
lpfc_sli_chipset_init(struct lpfc_hba *phba)
{
uint32_t status, i = 0;
/* Read the HBA Host Status Register */
if (lpfc_readl(phba->HSregaddr, &status))
return -EIO;
/* Check status register to see what current state is */
i = 0;
while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
/* Check every 10ms for 10 retries, then every 100ms for 90
* retries, then every 1 sec for 50 retires for a total of
* ~60 seconds before reset the board again and check every
* 1 sec for 50 retries. The up to 60 seconds before the
* board ready is required by the Falcon FIPS zeroization
* complete, and any reset the board in between shall cause
* restart of zeroization, further delay the board ready.
*/
if (i++ >= 200) {
/* Adapter failed to init, timeout, status reg
<status> */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0436 Adapter failed to init, "
"timeout, status reg x%x, "
"FW Data: A8 x%x AC x%x\n", status,
readl(phba->MBslimaddr + 0xa8),
readl(phba->MBslimaddr + 0xac));
phba->link_state = LPFC_HBA_ERROR;
return -ETIMEDOUT;
}
/* Check to see if any errors occurred during init */
if (status & HS_FFERM) {
/* ERROR: During chipset initialization */
/* Adapter failed to init, chipset, status reg
<status> */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0437 Adapter failed to init, "
"chipset, status reg x%x, "
"FW Data: A8 x%x AC x%x\n", status,
readl(phba->MBslimaddr + 0xa8),
readl(phba->MBslimaddr + 0xac));
phba->link_state = LPFC_HBA_ERROR;
return -EIO;
}
if (i <= 10)
msleep(10);
else if (i <= 100)
msleep(100);
else
msleep(1000);
if (i == 150) {
/* Do post */
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
lpfc_sli_brdrestart(phba);
}
/* Read the HBA Host Status Register */
if (lpfc_readl(phba->HSregaddr, &status))
return -EIO;
}
/* Check to see if any errors occurred during init */
if (status & HS_FFERM) {
/* ERROR: During chipset initialization */
/* Adapter failed to init, chipset, status reg <status> */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0438 Adapter failed to init, chipset, "
"status reg x%x, "
"FW Data: A8 x%x AC x%x\n", status,
readl(phba->MBslimaddr + 0xa8),
readl(phba->MBslimaddr + 0xac));
phba->link_state = LPFC_HBA_ERROR;
return -EIO;
}
phba->hba_flag |= HBA_NEEDS_CFG_PORT;
/* Clear all interrupt enable conditions */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* setup host attn register */
writel(0xffffffff, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
return 0;
}
/**
* lpfc_sli_hbq_count - Get the number of HBQs to be configured
*
* This function calculates and returns the number of HBQs required to be
* configured.
**/
int
lpfc_sli_hbq_count(void)
{
return ARRAY_SIZE(lpfc_hbq_defs);
}
/**
* lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
*
* This function adds the number of hbq entries in every HBQ to get
* the total number of hbq entries required for the HBA and returns
* the total count.
**/
static int
lpfc_sli_hbq_entry_count(void)
{
int hbq_count = lpfc_sli_hbq_count();
int count = 0;
int i;
for (i = 0; i < hbq_count; ++i)
count += lpfc_hbq_defs[i]->entry_count;
return count;
}
/**
* lpfc_sli_hbq_size - Calculate memory required for all hbq entries
*
* This function calculates amount of memory required for all hbq entries
* to be configured and returns the total memory required.
**/
int
lpfc_sli_hbq_size(void)
{
return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
}
/**
* lpfc_sli_hbq_setup - configure and initialize HBQs
* @phba: Pointer to HBA context object.
*
* This function is called during the SLI initialization to configure
* all the HBQs and post buffers to the HBQ. The caller is not
* required to hold any locks. This function will return zero if successful
* else it will return negative error code.
**/
static int
lpfc_sli_hbq_setup(struct lpfc_hba *phba)
{
int hbq_count = lpfc_sli_hbq_count();
LPFC_MBOXQ_t *pmb;
MAILBOX_t *pmbox;
uint32_t hbqno;
uint32_t hbq_entry_index;
/* Get a Mailbox buffer to setup mailbox
* commands for HBA initialization
*/
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb)
return -ENOMEM;
pmbox = &pmb->u.mb;
/* Initialize the struct lpfc_sli_hbq structure for each hbq */
phba->link_state = LPFC_INIT_MBX_CMDS;
phba->hbq_in_use = 1;
hbq_entry_index = 0;
for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
phba->hbqs[hbqno].next_hbqPutIdx = 0;
phba->hbqs[hbqno].hbqPutIdx = 0;
phba->hbqs[hbqno].local_hbqGetIdx = 0;
phba->hbqs[hbqno].entry_count =
lpfc_hbq_defs[hbqno]->entry_count;
lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
hbq_entry_index, pmb);
hbq_entry_index += phba->hbqs[hbqno].entry_count;
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
/* Adapter failed to init, mbxCmd <cmd> CFG_RING,
mbxStatus <status>, ring <num> */
lpfc_printf_log(phba, KERN_ERR,
LOG_SLI | LOG_VPORT,
"1805 Adapter failed to init. "
"Data: x%x x%x x%x\n",
pmbox->mbxCommand,
pmbox->mbxStatus, hbqno);
phba->link_state = LPFC_HBA_ERROR;
mempool_free(pmb, phba->mbox_mem_pool);
return -ENXIO;
}
}
phba->hbq_count = hbq_count;
mempool_free(pmb, phba->mbox_mem_pool);
/* Initially populate or replenish the HBQs */
for (hbqno = 0; hbqno < hbq_count; ++hbqno)
lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
return 0;
}
/**
* lpfc_sli4_rb_setup - Initialize and post RBs to HBA
* @phba: Pointer to HBA context object.
*
* This function is called during the SLI initialization to configure
* all the HBQs and post buffers to the HBQ. The caller is not
* required to hold any locks. This function will return zero if successful
* else it will return negative error code.
**/
static int
lpfc_sli4_rb_setup(struct lpfc_hba *phba)
{
phba->hbq_in_use = 1;
/**
* Specific case when the MDS diagnostics is enabled and supported.
* The receive buffer count is truncated to manage the incoming
* traffic.
**/
if (phba->cfg_enable_mds_diags && phba->mds_diags_support)
phba->hbqs[LPFC_ELS_HBQ].entry_count =
lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count >> 1;
else
phba->hbqs[LPFC_ELS_HBQ].entry_count =
lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
phba->hbq_count = 1;
lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
/* Initially populate or replenish the HBQs */
return 0;
}
/**
* lpfc_sli_config_port - Issue config port mailbox command
* @phba: Pointer to HBA context object.
* @sli_mode: sli mode - 2/3
*
* This function is called by the sli initialization code path
* to issue config_port mailbox command. This function restarts the
* HBA firmware and issues a config_port mailbox command to configure
* the SLI interface in the sli mode specified by sli_mode
* variable. The caller is not required to hold any locks.
* The function returns 0 if successful, else returns negative error
* code.
**/
int
lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
{
LPFC_MBOXQ_t *pmb;
uint32_t resetcount = 0, rc = 0, done = 0;
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
phba->sli_rev = sli_mode;
while (resetcount < 2 && !done) {
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irq(&phba->hbalock);
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
lpfc_sli_brdrestart(phba);
rc = lpfc_sli_chipset_init(phba);
if (rc)
break;
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irq(&phba->hbalock);
resetcount++;
/* Call pre CONFIG_PORT mailbox command initialization. A
* value of 0 means the call was successful. Any other
* nonzero value is a failure, but if ERESTART is returned,
* the driver may reset the HBA and try again.
*/
rc = lpfc_config_port_prep(phba);
if (rc == -ERESTART) {
phba->link_state = LPFC_LINK_UNKNOWN;
continue;
} else if (rc)
break;
phba->link_state = LPFC_INIT_MBX_CMDS;
lpfc_config_port(phba, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
LPFC_SLI3_HBQ_ENABLED |
LPFC_SLI3_CRP_ENABLED |
LPFC_SLI3_DSS_ENABLED);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0442 Adapter failed to init, mbxCmd x%x "
"CONFIG_PORT, mbxStatus x%x Data: x%x\n",
pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
rc = -ENXIO;
} else {
/* Allow asynchronous mailbox command to go through */
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
spin_unlock_irq(&phba->hbalock);
done = 1;
if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
(pmb->u.mb.un.varCfgPort.gasabt == 0))
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"3110 Port did not grant ASABT\n");
}
}
if (!done) {
rc = -EINVAL;
goto do_prep_failed;
}
if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
if (!pmb->u.mb.un.varCfgPort.cMA) {
rc = -ENXIO;
goto do_prep_failed;
}
if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
phba->max_vports = (phba->max_vpi > phba->max_vports) ?
phba->max_vpi : phba->max_vports;
} else
phba->max_vpi = 0;
if (pmb->u.mb.un.varCfgPort.gerbm)
phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
if (pmb->u.mb.un.varCfgPort.gcrp)
phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
phba->port_gp = phba->mbox->us.s3_pgp.port;
if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
if (pmb->u.mb.un.varCfgPort.gbg == 0) {
phba->cfg_enable_bg = 0;
phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0443 Adapter did not grant "
"BlockGuard\n");
}
}
} else {
phba->hbq_get = NULL;
phba->port_gp = phba->mbox->us.s2.port;
phba->max_vpi = 0;
}
do_prep_failed:
mempool_free(pmb, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_sli_hba_setup - SLI initialization function
* @phba: Pointer to HBA context object.
*
* This function is the main SLI initialization function. This function
* is called by the HBA initialization code, HBA reset code and HBA
* error attention handler code. Caller is not required to hold any
* locks. This function issues config_port mailbox command to configure
* the SLI, setup iocb rings and HBQ rings. In the end the function
* calls the config_port_post function to issue init_link mailbox
* command and to start the discovery. The function will return zero
* if successful, else it will return negative error code.
**/
int
lpfc_sli_hba_setup(struct lpfc_hba *phba)
{
uint32_t rc;
int i;
int longs;
/* Enable ISR already does config_port because of config_msi mbx */
if (phba->hba_flag & HBA_NEEDS_CFG_PORT) {
rc = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
if (rc)
return -EIO;
phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
}
phba->fcp_embed_io = 0; /* SLI4 FC support only */
if (phba->sli_rev == 3) {
phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
} else {
phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
phba->sli3_options = 0;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0444 Firmware in SLI %x mode. Max_vpi %d\n",
phba->sli_rev, phba->max_vpi);
rc = lpfc_sli_ring_map(phba);
if (rc)
goto lpfc_sli_hba_setup_error;
/* Initialize VPIs. */
if (phba->sli_rev == LPFC_SLI_REV3) {
/*
* The VPI bitmask and physical ID array are allocated
* and initialized once only - at driver load. A port
* reset doesn't need to reinitialize this memory.
*/
if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
phba->vpi_bmask = kcalloc(longs,
sizeof(unsigned long),
GFP_KERNEL);
if (!phba->vpi_bmask) {
rc = -ENOMEM;
goto lpfc_sli_hba_setup_error;
}
phba->vpi_ids = kcalloc(phba->max_vpi + 1,
sizeof(uint16_t),
GFP_KERNEL);
if (!phba->vpi_ids) {
kfree(phba->vpi_bmask);
rc = -ENOMEM;
goto lpfc_sli_hba_setup_error;
}
for (i = 0; i < phba->max_vpi; i++)
phba->vpi_ids[i] = i;
}
}
/* Init HBQs */
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
rc = lpfc_sli_hbq_setup(phba);
if (rc)
goto lpfc_sli_hba_setup_error;
}
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag |= LPFC_PROCESS_LA;
spin_unlock_irq(&phba->hbalock);
rc = lpfc_config_port_post(phba);
if (rc)
goto lpfc_sli_hba_setup_error;
return rc;
lpfc_sli_hba_setup_error:
phba->link_state = LPFC_HBA_ERROR;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0445 Firmware initialization failed\n");
return rc;
}
/**
* lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
* @phba: Pointer to HBA context object.
*
* This function issue a dump mailbox command to read config region
* 23 and parse the records in the region and populate driver
* data structure.
**/
static int
lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
struct lpfc_dmabuf *mp;
struct lpfc_mqe *mqe;
uint32_t data_length;
int rc;
/* Program the default value of vlan_id and fc_map */
phba->valid_vlan = 0;
phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
mqe = &mboxq->u.mqe;
if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
rc = -ENOMEM;
goto out_free_mboxq;
}
mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"(%d):2571 Mailbox cmd x%x Status x%x "
"Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
"x%x x%x x%x x%x x%x x%x x%x x%x x%x "
"CQ: x%x x%x x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
bf_get(lpfc_mqe_command, mqe),
bf_get(lpfc_mqe_status, mqe),
mqe->un.mb_words[0], mqe->un.mb_words[1],
mqe->un.mb_words[2], mqe->un.mb_words[3],
mqe->un.mb_words[4], mqe->un.mb_words[5],
mqe->un.mb_words[6], mqe->un.mb_words[7],
mqe->un.mb_words[8], mqe->un.mb_words[9],
mqe->un.mb_words[10], mqe->un.mb_words[11],
mqe->un.mb_words[12], mqe->un.mb_words[13],
mqe->un.mb_words[14], mqe->un.mb_words[15],
mqe->un.mb_words[16], mqe->un.mb_words[50],
mboxq->mcqe.word0,
mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
mboxq->mcqe.trailer);
if (rc) {
rc = -EIO;
goto out_free_mboxq;
}
data_length = mqe->un.mb_words[5];
if (data_length > DMP_RGN23_SIZE) {
rc = -EIO;
goto out_free_mboxq;
}
lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
rc = 0;
out_free_mboxq:
lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);
return rc;
}
/**
* lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to the LPFC_MBOXQ_t structure.
* @vpd: pointer to the memory to hold resulting port vpd data.
* @vpd_size: On input, the number of bytes allocated to @vpd.
* On output, the number of data bytes in @vpd.
*
* This routine executes a READ_REV SLI4 mailbox command. In
* addition, this routine gets the port vpd data.
*
* Return codes
* 0 - successful
* -ENOMEM - could not allocated memory.
**/
static int
lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
uint8_t *vpd, uint32_t *vpd_size)
{
int rc = 0;
uint32_t dma_size;
struct lpfc_dmabuf *dmabuf;
struct lpfc_mqe *mqe;
dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
/*
* Get a DMA buffer for the vpd data resulting from the READ_REV
* mailbox command.
*/
dma_size = *vpd_size;
dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, dma_size,
&dmabuf->phys, GFP_KERNEL);
if (!dmabuf->virt) {
kfree(dmabuf);
return -ENOMEM;
}
/*
* The SLI4 implementation of READ_REV conflicts at word1,
* bits 31:16 and SLI4 adds vpd functionality not present
* in SLI3. This code corrects the conflicts.
*/
lpfc_read_rev(phba, mboxq);
mqe = &mboxq->u.mqe;
mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
mqe->un.read_rev.word1 &= 0x0000FFFF;
bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc) {
dma_free_coherent(&phba->pcidev->dev, dma_size,
dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
return -EIO;
}
/*
* The available vpd length cannot be bigger than the
* DMA buffer passed to the port. Catch the less than
* case and update the caller's size.
*/
if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
*vpd_size = mqe->un.read_rev.avail_vpd_len;
memcpy(vpd, dmabuf->virt, *vpd_size);
dma_free_coherent(&phba->pcidev->dev, dma_size,
dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
return 0;
}
/**
* lpfc_sli4_get_ctl_attr - Retrieve SLI4 device controller attributes
* @phba: pointer to lpfc hba data structure.
*
* This routine retrieves SLI4 device physical port name this PCI function
* is attached to.
*
* Return codes
* 0 - successful
* otherwise - failed to retrieve controller attributes
**/
static int
lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
struct lpfc_controller_attribute *cntl_attr;
void *virtaddr = NULL;
uint32_t alloclen, reqlen;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
int rc;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
/* Send COMMON_GET_CNTL_ATTRIBUTES mbox cmd */
reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
LPFC_SLI4_MBX_NEMBED);
if (alloclen < reqlen) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3084 Allocated DMA memory size (%d) is "
"less than the requested DMA memory size "
"(%d)\n", alloclen, reqlen);
rc = -ENOMEM;
goto out_free_mboxq;
}
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
virtaddr = mboxq->sge_array->addr[0];
mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
shdr = &mbx_cntl_attr->cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3085 Mailbox x%x (x%x/x%x) failed, "
"rc:x%x, status:x%x, add_status:x%x\n",
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
rc, shdr_status, shdr_add_status);
rc = -ENXIO;
goto out_free_mboxq;
}
cntl_attr = &mbx_cntl_attr->cntl_attr;
phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
phba->sli4_hba.lnk_info.lnk_tp =
bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
phba->sli4_hba.lnk_info.lnk_no =
bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
phba->sli4_hba.flash_id = bf_get(lpfc_cntl_attr_flash_id, cntl_attr);
phba->sli4_hba.asic_rev = bf_get(lpfc_cntl_attr_asic_rev, cntl_attr);
memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion));
strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str,
sizeof(phba->BIOSVersion));
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s, "
"flash_id: x%02x, asic_rev: x%02x\n",
phba->sli4_hba.lnk_info.lnk_tp,
phba->sli4_hba.lnk_info.lnk_no,
phba->BIOSVersion, phba->sli4_hba.flash_id,
phba->sli4_hba.asic_rev);
out_free_mboxq:
if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
else
mempool_free(mboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
* @phba: pointer to lpfc hba data structure.
*
* This routine retrieves SLI4 device physical port name this PCI function
* is attached to.
*
* Return codes
* 0 - successful
* otherwise - failed to retrieve physical port name
**/
static int
lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
struct lpfc_mbx_get_port_name *get_port_name;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
char cport_name = 0;
int rc;
/* We assume nothing at this point */
phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
/* obtain link type and link number via READ_CONFIG */
phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
lpfc_sli4_read_config(phba);
if (phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG)
phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
goto retrieve_ppname;
/* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
rc = lpfc_sli4_get_ctl_attr(phba);
if (rc)
goto out_free_mboxq;
retrieve_ppname:
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_PORT_NAME,
sizeof(struct lpfc_mbx_get_port_name) -
sizeof(struct lpfc_sli4_cfg_mhdr),
LPFC_SLI4_MBX_EMBED);
get_port_name = &mboxq->u.mqe.un.get_port_name;
shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
phba->sli4_hba.lnk_info.lnk_tp);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3087 Mailbox x%x (x%x/x%x) failed: "
"rc:x%x, status:x%x, add_status:x%x\n",
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
rc, shdr_status, shdr_add_status);
rc = -ENXIO;
goto out_free_mboxq;
}
switch (phba->sli4_hba.lnk_info.lnk_no) {
case LPFC_LINK_NUMBER_0:
cport_name = bf_get(lpfc_mbx_get_port_name_name0,
&get_port_name->u.response);
phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
break;
case LPFC_LINK_NUMBER_1:
cport_name = bf_get(lpfc_mbx_get_port_name_name1,
&get_port_name->u.response);
phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
break;
case LPFC_LINK_NUMBER_2:
cport_name = bf_get(lpfc_mbx_get_port_name_name2,
&get_port_name->u.response);
phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
break;
case LPFC_LINK_NUMBER_3:
cport_name = bf_get(lpfc_mbx_get_port_name_name3,
&get_port_name->u.response);
phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
break;
default:
break;
}
if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
phba->Port[0] = cport_name;
phba->Port[1] = '\0';
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3091 SLI get port name: %s\n", phba->Port);
}
out_free_mboxq:
if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
else
mempool_free(mboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to explicitly arm the SLI4 device's completion and
* event queues
**/
static void
lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
{
int qidx;
struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_queue *eq;
sli4_hba->sli4_write_cq_db(phba, sli4_hba->mbx_cq, 0, LPFC_QUEUE_REARM);
sli4_hba->sli4_write_cq_db(phba, sli4_hba->els_cq, 0, LPFC_QUEUE_REARM);
if (sli4_hba->nvmels_cq)
sli4_hba->sli4_write_cq_db(phba, sli4_hba->nvmels_cq, 0,
LPFC_QUEUE_REARM);
if (sli4_hba->hdwq) {
/* Loop thru all Hardware Queues */
for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
qp = &sli4_hba->hdwq[qidx];
/* ARM the corresponding CQ */
sli4_hba->sli4_write_cq_db(phba, qp->io_cq, 0,
LPFC_QUEUE_REARM);
}
/* Loop thru all IRQ vectors */
for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
eq = sli4_hba->hba_eq_hdl[qidx].eq;
/* ARM the corresponding EQ */
sli4_hba->sli4_write_eq_db(phba, eq,
0, LPFC_QUEUE_REARM);
}
}
if (phba->nvmet_support) {
for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
sli4_hba->sli4_write_cq_db(phba,
sli4_hba->nvmet_cqset[qidx], 0,
LPFC_QUEUE_REARM);
}
}
}
/**
* lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
* @phba: Pointer to HBA context object.
* @type: The resource extent type.
* @extnt_count: buffer to hold port available extent count.
* @extnt_size: buffer to hold element count per extent.
*
* This function calls the port and retrievs the number of available
* extents and their size for a particular extent type.
*
* Returns: 0 if successful. Nonzero otherwise.
**/
int
lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
uint16_t *extnt_count, uint16_t *extnt_size)
{
int rc = 0;
uint32_t length;
uint32_t mbox_tmo;
struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
LPFC_MBOXQ_t *mbox;
*extnt_count = 0;
*extnt_size = 0;
mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
/* Find out how many extents are available for this resource type */
length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
length, LPFC_SLI4_MBX_EMBED);
/* Send an extents count of 0 - the GET doesn't use it. */
rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
LPFC_SLI4_MBX_EMBED);
if (unlikely(rc)) {
rc = -EIO;
goto err_exit;
}
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
}
if (unlikely(rc)) {
rc = -EIO;
goto err_exit;
}
rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
if (bf_get(lpfc_mbox_hdr_status,
&rsrc_info->header.cfg_shdr.response)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2930 Failed to get resource extents "
"Status 0x%x Add'l Status 0x%x\n",
bf_get(lpfc_mbox_hdr_status,
&rsrc_info->header.cfg_shdr.response),
bf_get(lpfc_mbox_hdr_add_status,
&rsrc_info->header.cfg_shdr.response));
rc = -EIO;
goto err_exit;
}
*extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
&rsrc_info->u.rsp);
*extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
&rsrc_info->u.rsp);
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3162 Retrieved extents type-%d from port: count:%d, "
"size:%d\n", type, *extnt_count, *extnt_size);
err_exit:
mempool_free(mbox, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
* @phba: Pointer to HBA context object.
* @type: The extent type to check.
*
* This function reads the current available extents from the port and checks
* if the extent count or extent size has changed since the last access.
* Callers use this routine post port reset to understand if there is a
* extent reprovisioning requirement.
*
* Returns:
* -Error: error indicates problem.
* 1: Extent count or size has changed.
* 0: No changes.
**/
static int
lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
{
uint16_t curr_ext_cnt, rsrc_ext_cnt;
uint16_t size_diff, rsrc_ext_size;
int rc = 0;
struct lpfc_rsrc_blks *rsrc_entry;
struct list_head *rsrc_blk_list = NULL;
size_diff = 0;
curr_ext_cnt = 0;
rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
&rsrc_ext_cnt,
&rsrc_ext_size);
if (unlikely(rc))
return -EIO;
switch (type) {
case LPFC_RSC_TYPE_FCOE_RPI:
rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_VPI:
rsrc_blk_list = &phba->lpfc_vpi_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_XRI:
rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_VFI:
rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
break;
default:
break;
}
list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
curr_ext_cnt++;
if (rsrc_entry->rsrc_size != rsrc_ext_size)
size_diff++;
}
if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
rc = 1;
return rc;
}
/**
* lpfc_sli4_cfg_post_extnts -
* @phba: Pointer to HBA context object.
* @extnt_cnt: number of available extents.
* @type: the extent type (rpi, xri, vfi, vpi).
* @emb: buffer to hold either MBX_EMBED or MBX_NEMBED operation.
* @mbox: pointer to the caller's allocated mailbox structure.
*
* This function executes the extents allocation request. It also
* takes care of the amount of memory needed to allocate or get the
* allocated extents. It is the caller's responsibility to evaluate
* the response.
*
* Returns:
* -Error: Error value describes the condition found.
* 0: if successful
**/
static int
lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
{
int rc = 0;
uint32_t req_len;
uint32_t emb_len;
uint32_t alloc_len, mbox_tmo;
/* Calculate the total requested length of the dma memory */
req_len = extnt_cnt * sizeof(uint16_t);
/*
* Calculate the size of an embedded mailbox. The uint32_t
* accounts for extents-specific word.
*/
emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
sizeof(uint32_t);
/*
* Presume the allocation and response will fit into an embedded
* mailbox. If not true, reconfigure to a non-embedded mailbox.
*/
*emb = LPFC_SLI4_MBX_EMBED;
if (req_len > emb_len) {
req_len = extnt_cnt * sizeof(uint16_t) +
sizeof(union lpfc_sli4_cfg_shdr) +
sizeof(uint32_t);
*emb = LPFC_SLI4_MBX_NEMBED;
}
alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
req_len, *emb);
if (alloc_len < req_len) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2982 Allocated DMA memory size (x%x) is "
"less than the requested DMA memory "
"size (x%x)\n", alloc_len, req_len);
return -ENOMEM;
}
rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
if (unlikely(rc))
return -EIO;
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
}
if (unlikely(rc))
rc = -EIO;
return rc;
}
/**
* lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
* @phba: Pointer to HBA context object.
* @type: The resource extent type to allocate.
*
* This function allocates the number of elements for the specified
* resource type.
**/
static int
lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
{
bool emb = false;
uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
uint16_t rsrc_id, rsrc_start, j, k;
uint16_t *ids;
int i, rc;
unsigned long longs;
unsigned long *bmask;
struct lpfc_rsrc_blks *rsrc_blks;
LPFC_MBOXQ_t *mbox;
uint32_t length;
struct lpfc_id_range *id_array = NULL;
void *virtaddr = NULL;
struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
struct list_head *ext_blk_list;
rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
&rsrc_cnt,
&rsrc_size);
if (unlikely(rc))
return -EIO;
if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3009 No available Resource Extents "
"for resource type 0x%x: Count: 0x%x, "
"Size 0x%x\n", type, rsrc_cnt,
rsrc_size);
return -ENOMEM;
}
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
"2903 Post resource extents type-0x%x: "
"count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
if (unlikely(rc)) {
rc = -EIO;
goto err_exit;
}
/*
* Figure out where the response is located. Then get local pointers
* to the response data. The port does not guarantee to respond to
* all extents counts request so update the local variable with the
* allocated count from the port.
*/
if (emb == LPFC_SLI4_MBX_EMBED) {
rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
id_array = &rsrc_ext->u.rsp.id[0];
rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
} else {
virtaddr = mbox->sge_array->addr[0];
n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
id_array = &n_rsrc->id;
}
longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
rsrc_id_cnt = rsrc_cnt * rsrc_size;
/*
* Based on the resource size and count, correct the base and max
* resource values.
*/
length = sizeof(struct lpfc_rsrc_blks);
switch (type) {
case LPFC_RSC_TYPE_FCOE_RPI:
phba->sli4_hba.rpi_bmask = kcalloc(longs,
sizeof(unsigned long),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.rpi_bmask)) {
rc = -ENOMEM;
goto err_exit;
}
phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
sizeof(uint16_t),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.rpi_ids)) {
kfree(phba->sli4_hba.rpi_bmask);
rc = -ENOMEM;
goto err_exit;
}
/*
* The next_rpi was initialized with the maximum available
* count but the port may allocate a smaller number. Catch
* that case and update the next_rpi.
*/
phba->sli4_hba.next_rpi = rsrc_id_cnt;
/* Initialize local ptrs for common extent processing later. */
bmask = phba->sli4_hba.rpi_bmask;
ids = phba->sli4_hba.rpi_ids;
ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_VPI:
phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
GFP_KERNEL);
if (unlikely(!phba->vpi_bmask)) {
rc = -ENOMEM;
goto err_exit;
}
phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
GFP_KERNEL);
if (unlikely(!phba->vpi_ids)) {
kfree(phba->vpi_bmask);
rc = -ENOMEM;
goto err_exit;
}
/* Initialize local ptrs for common extent processing later. */
bmask = phba->vpi_bmask;
ids = phba->vpi_ids;
ext_blk_list = &phba->lpfc_vpi_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_XRI:
phba->sli4_hba.xri_bmask = kcalloc(longs,
sizeof(unsigned long),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.xri_bmask)) {
rc = -ENOMEM;
goto err_exit;
}
phba->sli4_hba.max_cfg_param.xri_used = 0;
phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
sizeof(uint16_t),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.xri_ids)) {
kfree(phba->sli4_hba.xri_bmask);
rc = -ENOMEM;
goto err_exit;
}
/* Initialize local ptrs for common extent processing later. */
bmask = phba->sli4_hba.xri_bmask;
ids = phba->sli4_hba.xri_ids;
ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_VFI:
phba->sli4_hba.vfi_bmask = kcalloc(longs,
sizeof(unsigned long),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.vfi_bmask)) {
rc = -ENOMEM;
goto err_exit;
}
phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
sizeof(uint16_t),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.vfi_ids)) {
kfree(phba->sli4_hba.vfi_bmask);
rc = -ENOMEM;
goto err_exit;
}
/* Initialize local ptrs for common extent processing later. */
bmask = phba->sli4_hba.vfi_bmask;
ids = phba->sli4_hba.vfi_ids;
ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
break;
default:
/* Unsupported Opcode. Fail call. */
id_array = NULL;
bmask = NULL;
ids = NULL;
ext_blk_list = NULL;
goto err_exit;
}
/*
* Complete initializing the extent configuration with the
* allocated ids assigned to this function. The bitmask serves
* as an index into the array and manages the available ids. The
* array just stores the ids communicated to the port via the wqes.
*/
for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
if ((i % 2) == 0)
rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
&id_array[k]);
else
rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
&id_array[k]);
rsrc_blks = kzalloc(length, GFP_KERNEL);
if (unlikely(!rsrc_blks)) {
rc = -ENOMEM;
kfree(bmask);
kfree(ids);
goto err_exit;
}
rsrc_blks->rsrc_start = rsrc_id;
rsrc_blks->rsrc_size = rsrc_size;
list_add_tail(&rsrc_blks->list, ext_blk_list);
rsrc_start = rsrc_id;
if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
phba->sli4_hba.io_xri_start = rsrc_start +
lpfc_sli4_get_iocb_cnt(phba);
}
while (rsrc_id < (rsrc_start + rsrc_size)) {
ids[j] = rsrc_id;
rsrc_id++;
j++;
}
/* Entire word processed. Get next word.*/
if ((i % 2) == 1)
k++;
}
err_exit:
lpfc_sli4_mbox_cmd_free(phba, mbox);
return rc;
}
/**
* lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
* @phba: Pointer to HBA context object.
* @type: the extent's type.
*
* This function deallocates all extents of a particular resource type.
* SLI4 does not allow for deallocating a particular extent range. It
* is the caller's responsibility to release all kernel memory resources.
**/
static int
lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
{
int rc;
uint32_t length, mbox_tmo = 0;
LPFC_MBOXQ_t *mbox;
struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
/*
* This function sends an embedded mailbox because it only sends the
* the resource type. All extents of this type are released by the
* port.
*/
length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
length, LPFC_SLI4_MBX_EMBED);
/* Send an extents count of 0 - the dealloc doesn't use it. */
rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
LPFC_SLI4_MBX_EMBED);
if (unlikely(rc)) {
rc = -EIO;
goto out_free_mbox;
}
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
}
if (unlikely(rc)) {
rc = -EIO;
goto out_free_mbox;
}
dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
if (bf_get(lpfc_mbox_hdr_status,
&dealloc_rsrc->header.cfg_shdr.response)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2919 Failed to release resource extents "
"for type %d - Status 0x%x Add'l Status 0x%x. "
"Resource memory not released.\n",
type,
bf_get(lpfc_mbox_hdr_status,
&dealloc_rsrc->header.cfg_shdr.response),
bf_get(lpfc_mbox_hdr_add_status,
&dealloc_rsrc->header.cfg_shdr.response));
rc = -EIO;
goto out_free_mbox;
}
/* Release kernel memory resources for the specific type. */
switch (type) {
case LPFC_RSC_TYPE_FCOE_VPI:
kfree(phba->vpi_bmask);
kfree(phba->vpi_ids);
bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
&phba->lpfc_vpi_blk_list, list) {
list_del_init(&rsrc_blk->list);
kfree(rsrc_blk);
}
phba->sli4_hba.max_cfg_param.vpi_used = 0;
break;
case LPFC_RSC_TYPE_FCOE_XRI:
kfree(phba->sli4_hba.xri_bmask);
kfree(phba->sli4_hba.xri_ids);
list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
&phba->sli4_hba.lpfc_xri_blk_list, list) {
list_del_init(&rsrc_blk->list);
kfree(rsrc_blk);
}
break;
case LPFC_RSC_TYPE_FCOE_VFI:
kfree(phba->sli4_hba.vfi_bmask);
kfree(phba->sli4_hba.vfi_ids);
bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
&phba->sli4_hba.lpfc_vfi_blk_list, list) {
list_del_init(&rsrc_blk->list);
kfree(rsrc_blk);
}
break;
case LPFC_RSC_TYPE_FCOE_RPI:
/* RPI bitmask and physical id array are cleaned up earlier. */
list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
&phba->sli4_hba.lpfc_rpi_blk_list, list) {
list_del_init(&rsrc_blk->list);
kfree(rsrc_blk);
}
break;
default:
break;
}
bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
out_free_mbox:
mempool_free(mbox, phba->mbox_mem_pool);
return rc;
}
static void
lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
uint32_t feature)
{
uint32_t len;
u32 sig_freq = 0;
len = sizeof(struct lpfc_mbx_set_feature) -
sizeof(struct lpfc_sli4_cfg_mhdr);
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_SET_FEATURES, len,
LPFC_SLI4_MBX_EMBED);
switch (feature) {
case LPFC_SET_UE_RECOVERY:
bf_set(lpfc_mbx_set_feature_UER,
&mbox->u.mqe.un.set_feature, 1);
mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
mbox->u.mqe.un.set_feature.param_len = 8;
break;
case LPFC_SET_MDS_DIAGS:
bf_set(lpfc_mbx_set_feature_mds,
&mbox->u.mqe.un.set_feature, 1);
bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
&mbox->u.mqe.un.set_feature, 1);
mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
mbox->u.mqe.un.set_feature.param_len = 8;
break;
case LPFC_SET_CGN_SIGNAL:
if (phba->cmf_active_mode == LPFC_CFG_OFF)
sig_freq = 0;
else
sig_freq = phba->cgn_sig_freq;
if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
bf_set(lpfc_mbx_set_feature_CGN_alarm_freq,
&mbox->u.mqe.un.set_feature, sig_freq);
bf_set(lpfc_mbx_set_feature_CGN_warn_freq,
&mbox->u.mqe.un.set_feature, sig_freq);
}
if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY)
bf_set(lpfc_mbx_set_feature_CGN_warn_freq,
&mbox->u.mqe.un.set_feature, sig_freq);
if (phba->cmf_active_mode == LPFC_CFG_OFF ||
phba->cgn_reg_signal == EDC_CG_SIG_NOTSUPPORTED)
sig_freq = 0;
else
sig_freq = lpfc_acqe_cgn_frequency;
bf_set(lpfc_mbx_set_feature_CGN_acqe_freq,
&mbox->u.mqe.un.set_feature, sig_freq);
mbox->u.mqe.un.set_feature.feature = LPFC_SET_CGN_SIGNAL;
mbox->u.mqe.un.set_feature.param_len = 12;
break;
case LPFC_SET_DUAL_DUMP:
bf_set(lpfc_mbx_set_feature_dd,
&mbox->u.mqe.un.set_feature, LPFC_ENABLE_DUAL_DUMP);
bf_set(lpfc_mbx_set_feature_ddquery,
&mbox->u.mqe.un.set_feature, 0);
mbox->u.mqe.un.set_feature.feature = LPFC_SET_DUAL_DUMP;
mbox->u.mqe.un.set_feature.param_len = 4;
break;
case LPFC_SET_ENABLE_MI:
mbox->u.mqe.un.set_feature.feature = LPFC_SET_ENABLE_MI;
mbox->u.mqe.un.set_feature.param_len = 4;
bf_set(lpfc_mbx_set_feature_milunq, &mbox->u.mqe.un.set_feature,
phba->pport->cfg_lun_queue_depth);
bf_set(lpfc_mbx_set_feature_mi, &mbox->u.mqe.un.set_feature,
phba->sli4_hba.pc_sli4_params.mi_ver);
break;
case LPFC_SET_LD_SIGNAL:
mbox->u.mqe.un.set_feature.feature = LPFC_SET_LD_SIGNAL;
mbox->u.mqe.un.set_feature.param_len = 16;
bf_set(lpfc_mbx_set_feature_lds_qry,
&mbox->u.mqe.un.set_feature, LPFC_QUERY_LDS_OP);
break;
case LPFC_SET_ENABLE_CMF:
mbox->u.mqe.un.set_feature.feature = LPFC_SET_ENABLE_CMF;
mbox->u.mqe.un.set_feature.param_len = 4;
bf_set(lpfc_mbx_set_feature_cmf,
&mbox->u.mqe.un.set_feature, 1);
break;
}
return;
}
/**
* lpfc_ras_stop_fwlog: Disable FW logging by the adapter
* @phba: Pointer to HBA context object.
*
* Disable FW logging into host memory on the adapter. To
* be done before reading logs from the host memory.
**/
void
lpfc_ras_stop_fwlog(struct lpfc_hba *phba)
{
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
spin_lock_irq(&phba->hbalock);
ras_fwlog->state = INACTIVE;
spin_unlock_irq(&phba->hbalock);
/* Disable FW logging to host memory */
writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
/* Wait 10ms for firmware to stop using DMA buffer */
usleep_range(10 * 1000, 20 * 1000);
}
/**
* lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
* @phba: Pointer to HBA context object.
*
* This function is called to free memory allocated for RAS FW logging
* support in the driver.
**/
void
lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
{
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
struct lpfc_dmabuf *dmabuf, *next;
if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
list_for_each_entry_safe(dmabuf, next,
&ras_fwlog->fwlog_buff_list,
list) {
list_del(&dmabuf->list);
dma_free_coherent(&phba->pcidev->dev,
LPFC_RAS_MAX_ENTRY_SIZE,
dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
}
}
if (ras_fwlog->lwpd.virt) {
dma_free_coherent(&phba->pcidev->dev,
sizeof(uint32_t) * 2,
ras_fwlog->lwpd.virt,
ras_fwlog->lwpd.phys);
ras_fwlog->lwpd.virt = NULL;
}
spin_lock_irq(&phba->hbalock);
ras_fwlog->state = INACTIVE;
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
* @phba: Pointer to HBA context object.
* @fwlog_buff_count: Count of buffers to be created.
*
* This routine DMA memory for Log Write Position Data[LPWD] and buffer
* to update FW log is posted to the adapter.
* Buffer count is calculated based on module param ras_fwlog_buffsize
* Size of each buffer posted to FW is 64K.
**/
static int
lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
uint32_t fwlog_buff_count)
{
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
struct lpfc_dmabuf *dmabuf;
int rc = 0, i = 0;
/* Initialize List */
INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
/* Allocate memory for the LWPD */
ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
sizeof(uint32_t) * 2,
&ras_fwlog->lwpd.phys,
GFP_KERNEL);
if (!ras_fwlog->lwpd.virt) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6185 LWPD Memory Alloc Failed\n");
return -ENOMEM;
}
ras_fwlog->fw_buffcount = fwlog_buff_count;
for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
GFP_KERNEL);
if (!dmabuf) {
rc = -ENOMEM;
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"6186 Memory Alloc failed FW logging");
goto free_mem;
}
dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
LPFC_RAS_MAX_ENTRY_SIZE,
&dmabuf->phys, GFP_KERNEL);
if (!dmabuf->virt) {
kfree(dmabuf);
rc = -ENOMEM;
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"6187 DMA Alloc Failed FW logging");
goto free_mem;
}
dmabuf->buffer_tag = i;
list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
}
free_mem:
if (rc)
lpfc_sli4_ras_dma_free(phba);
return rc;
}
/**
* lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* Completion handler for driver's RAS MBX command to the device.
**/
static void
lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t shdr_status, shdr_add_status;
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
mb = &pmb->u.mb;
shdr = (union lpfc_sli4_cfg_shdr *)
&pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6188 FW LOG mailbox "
"completed with status x%x add_status x%x,"
" mbx status x%x\n",
shdr_status, shdr_add_status, mb->mbxStatus);
ras_fwlog->ras_hwsupport = false;
goto disable_ras;
}
spin_lock_irq(&phba->hbalock);
ras_fwlog->state = ACTIVE;
spin_unlock_irq(&phba->hbalock);
mempool_free(pmb, phba->mbox_mem_pool);
return;
disable_ras:
/* Free RAS DMA memory */
lpfc_sli4_ras_dma_free(phba);
mempool_free(pmb, phba->mbox_mem_pool);
}
/**
* lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
* @phba: pointer to lpfc hba data structure.
* @fwlog_level: Logging verbosity level.
* @fwlog_enable: Enable/Disable logging.
*
* Initialize memory and post mailbox command to enable FW logging in host
* memory.
**/
int
lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
uint32_t fwlog_level,
uint32_t fwlog_enable)
{
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
struct lpfc_dmabuf *dmabuf;
LPFC_MBOXQ_t *mbox;
uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
int rc = 0;
spin_lock_irq(&phba->hbalock);
ras_fwlog->state = INACTIVE;
spin_unlock_irq(&phba->hbalock);
fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
phba->cfg_ras_fwlog_buffsize);
fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
/*
* If re-enabling FW logging support use earlier allocated
* DMA buffers while posting MBX command.
**/
if (!ras_fwlog->lwpd.virt) {
rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"6189 FW Log Memory Allocation Failed");
return rc;
}
}
/* Setup Mailbox command */
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6190 RAS MBX Alloc Failed");
rc = -ENOMEM;
goto mem_free;
}
ras_fwlog->fw_loglevel = fwlog_level;
len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
len, LPFC_SLI4_MBX_EMBED);
mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
fwlog_enable);
bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
ras_fwlog->fw_loglevel);
bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
ras_fwlog->fw_buffcount);
bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
/* Update DMA buffer address */
list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
putPaddrLow(dmabuf->phys);
mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
putPaddrHigh(dmabuf->phys);
}
/* Update LPWD address */
mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
spin_lock_irq(&phba->hbalock);
ras_fwlog->state = REG_INPROGRESS;
spin_unlock_irq(&phba->hbalock);
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6191 FW-Log Mailbox failed. "
"status %d mbxStatus : x%x", rc,
bf_get(lpfc_mqe_status, &mbox->u.mqe));
mempool_free(mbox, phba->mbox_mem_pool);
rc = -EIO;
goto mem_free;
} else
rc = 0;
mem_free:
if (rc)
lpfc_sli4_ras_dma_free(phba);
return rc;
}
/**
* lpfc_sli4_ras_setup - Check if RAS supported on the adapter
* @phba: Pointer to HBA context object.
*
* Check if RAS is supported on the adapter and initialize it.
**/
void
lpfc_sli4_ras_setup(struct lpfc_hba *phba)
{
/* Check RAS FW Log needs to be enabled or not */
if (lpfc_check_fwlog_support(phba))
return;
lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
LPFC_RAS_ENABLE_LOGGING);
}
/**
* lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
* @phba: Pointer to HBA context object.
*
* This function allocates all SLI4 resource identifiers.
**/
int
lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
{
int i, rc, error = 0;
uint16_t count, base;
unsigned long longs;
if (!phba->sli4_hba.rpi_hdrs_in_use)
phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
if (phba->sli4_hba.extents_in_use) {
/*
* The port supports resource extents. The XRI, VPI, VFI, RPI
* resource extent count must be read and allocated before
* provisioning the resource id arrays.
*/
if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
LPFC_IDX_RSRC_RDY) {
/*
* Extent-based resources are set - the driver could
* be in a port reset. Figure out if any corrective
* actions need to be taken.
*/
rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_VFI);
if (rc != 0)
error++;
rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_VPI);
if (rc != 0)
error++;
rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_XRI);
if (rc != 0)
error++;
rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_RPI);
if (rc != 0)
error++;
/*
* It's possible that the number of resources
* provided to this port instance changed between
* resets. Detect this condition and reallocate
* resources. Otherwise, there is no action.
*/
if (error) {
lpfc_printf_log(phba, KERN_INFO,
LOG_MBOX | LOG_INIT,
"2931 Detected extent resource "
"change. Reallocating all "
"extents.\n");
rc = lpfc_sli4_dealloc_extent(phba,
LPFC_RSC_TYPE_FCOE_VFI);
rc = lpfc_sli4_dealloc_extent(phba,
LPFC_RSC_TYPE_FCOE_VPI);
rc = lpfc_sli4_dealloc_extent(phba,
LPFC_RSC_TYPE_FCOE_XRI);
rc = lpfc_sli4_dealloc_extent(phba,
LPFC_RSC_TYPE_FCOE_RPI);
} else
return 0;
}
rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
if (unlikely(rc))
goto err_exit;
rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
if (unlikely(rc))
goto err_exit;
rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
if (unlikely(rc))
goto err_exit;
rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
if (unlikely(rc))
goto err_exit;
bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
LPFC_IDX_RSRC_RDY);
return rc;
} else {
/*
* The port does not support resource extents. The XRI, VPI,
* VFI, RPI resource ids were determined from READ_CONFIG.
* Just allocate the bitmasks and provision the resource id
* arrays. If a port reset is active, the resources don't
* need any action - just exit.
*/
if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
LPFC_IDX_RSRC_RDY) {
lpfc_sli4_dealloc_resource_identifiers(phba);
lpfc_sli4_remove_rpis(phba);
}
/* RPIs. */
count = phba->sli4_hba.max_cfg_param.max_rpi;
if (count <= 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3279 Invalid provisioning of "
"rpi:%d\n", count);
rc = -EINVAL;
goto err_exit;
}
base = phba->sli4_hba.max_cfg_param.rpi_base;
longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->sli4_hba.rpi_bmask = kcalloc(longs,
sizeof(unsigned long),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.rpi_bmask)) {
rc = -ENOMEM;
goto err_exit;
}
phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.rpi_ids)) {
rc = -ENOMEM;
goto free_rpi_bmask;
}
for (i = 0; i < count; i++)
phba->sli4_hba.rpi_ids[i] = base + i;
/* VPIs. */
count = phba->sli4_hba.max_cfg_param.max_vpi;
if (count <= 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3280 Invalid provisioning of "
"vpi:%d\n", count);
rc = -EINVAL;
goto free_rpi_ids;
}
base = phba->sli4_hba.max_cfg_param.vpi_base;
longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
GFP_KERNEL);
if (unlikely(!phba->vpi_bmask)) {
rc = -ENOMEM;
goto free_rpi_ids;
}
phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
GFP_KERNEL);
if (unlikely(!phba->vpi_ids)) {
rc = -ENOMEM;
goto free_vpi_bmask;
}
for (i = 0; i < count; i++)
phba->vpi_ids[i] = base + i;
/* XRIs. */
count = phba->sli4_hba.max_cfg_param.max_xri;
if (count <= 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3281 Invalid provisioning of "
"xri:%d\n", count);
rc = -EINVAL;
goto free_vpi_ids;
}
base = phba->sli4_hba.max_cfg_param.xri_base;
longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->sli4_hba.xri_bmask = kcalloc(longs,
sizeof(unsigned long),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.xri_bmask)) {
rc = -ENOMEM;
goto free_vpi_ids;
}
phba->sli4_hba.max_cfg_param.xri_used = 0;
phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.xri_ids)) {
rc = -ENOMEM;
goto free_xri_bmask;
}
for (i = 0; i < count; i++)
phba->sli4_hba.xri_ids[i] = base + i;
/* VFIs. */
count = phba->sli4_hba.max_cfg_param.max_vfi;
if (count <= 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3282 Invalid provisioning of "
"vfi:%d\n", count);
rc = -EINVAL;
goto free_xri_ids;
}
base = phba->sli4_hba.max_cfg_param.vfi_base;
longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->sli4_hba.vfi_bmask = kcalloc(longs,
sizeof(unsigned long),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.vfi_bmask)) {
rc = -ENOMEM;
goto free_xri_ids;
}
phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
GFP_KERNEL);
if (unlikely(!phba->sli4_hba.vfi_ids)) {
rc = -ENOMEM;
goto free_vfi_bmask;
}
for (i = 0; i < count; i++)
phba->sli4_hba.vfi_ids[i] = base + i;
/*
* Mark all resources ready. An HBA reset doesn't need
* to reset the initialization.
*/
bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
LPFC_IDX_RSRC_RDY);
return 0;
}
free_vfi_bmask:
kfree(phba->sli4_hba.vfi_bmask);
phba->sli4_hba.vfi_bmask = NULL;
free_xri_ids:
kfree(phba->sli4_hba.xri_ids);
phba->sli4_hba.xri_ids = NULL;
free_xri_bmask:
kfree(phba->sli4_hba.xri_bmask);
phba->sli4_hba.xri_bmask = NULL;
free_vpi_ids:
kfree(phba->vpi_ids);
phba->vpi_ids = NULL;
free_vpi_bmask:
kfree(phba->vpi_bmask);
phba->vpi_bmask = NULL;
free_rpi_ids:
kfree(phba->sli4_hba.rpi_ids);
phba->sli4_hba.rpi_ids = NULL;
free_rpi_bmask:
kfree(phba->sli4_hba.rpi_bmask);
phba->sli4_hba.rpi_bmask = NULL;
err_exit:
return rc;
}
/**
* lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
* @phba: Pointer to HBA context object.
*
* This function allocates the number of elements for the specified
* resource type.
**/
int
lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
{
if (phba->sli4_hba.extents_in_use) {
lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
} else {
kfree(phba->vpi_bmask);
phba->sli4_hba.max_cfg_param.vpi_used = 0;
kfree(phba->vpi_ids);
bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
kfree(phba->sli4_hba.xri_bmask);
kfree(phba->sli4_hba.xri_ids);
kfree(phba->sli4_hba.vfi_bmask);
kfree(phba->sli4_hba.vfi_ids);
bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
}
return 0;
}
/**
* lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
* @phba: Pointer to HBA context object.
* @type: The resource extent type.
* @extnt_cnt: buffer to hold port extent count response
* @extnt_size: buffer to hold port extent size response.
*
* This function calls the port to read the host allocated extents
* for a particular type.
**/
int
lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
uint16_t *extnt_cnt, uint16_t *extnt_size)
{
bool emb;
int rc = 0;
uint16_t curr_blks = 0;
uint32_t req_len, emb_len;
uint32_t alloc_len, mbox_tmo;
struct list_head *blk_list_head;
struct lpfc_rsrc_blks *rsrc_blk;
LPFC_MBOXQ_t *mbox;
void *virtaddr = NULL;
struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
union lpfc_sli4_cfg_shdr *shdr;
switch (type) {
case LPFC_RSC_TYPE_FCOE_VPI:
blk_list_head = &phba->lpfc_vpi_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_XRI:
blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_VFI:
blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
break;
case LPFC_RSC_TYPE_FCOE_RPI:
blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
break;
default:
return -EIO;
}
/* Count the number of extents currently allocatd for this type. */
list_for_each_entry(rsrc_blk, blk_list_head, list) {
if (curr_blks == 0) {
/*
* The GET_ALLOCATED mailbox does not return the size,
* just the count. The size should be just the size
* stored in the current allocated block and all sizes
* for an extent type are the same so set the return
* value now.
*/
*extnt_size = rsrc_blk->rsrc_size;
}
curr_blks++;
}
/*
* Calculate the size of an embedded mailbox. The uint32_t
* accounts for extents-specific word.
*/
emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
sizeof(uint32_t);
/*
* Presume the allocation and response will fit into an embedded
* mailbox. If not true, reconfigure to a non-embedded mailbox.
*/
emb = LPFC_SLI4_MBX_EMBED;
req_len = emb_len;
if (req_len > emb_len) {
req_len = curr_blks * sizeof(uint16_t) +
sizeof(union lpfc_sli4_cfg_shdr) +
sizeof(uint32_t);
emb = LPFC_SLI4_MBX_NEMBED;
}
mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
req_len, emb);
if (alloc_len < req_len) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2983 Allocated DMA memory size (x%x) is "
"less than the requested DMA memory "
"size (x%x)\n", alloc_len, req_len);
rc = -ENOMEM;
goto err_exit;
}
rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
if (unlikely(rc)) {
rc = -EIO;
goto err_exit;
}
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
}
if (unlikely(rc)) {
rc = -EIO;
goto err_exit;
}
/*
* Figure out where the response is located. Then get local pointers
* to the response data. The port does not guarantee to respond to
* all extents counts request so update the local variable with the
* allocated count from the port.
*/
if (emb == LPFC_SLI4_MBX_EMBED) {
rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
shdr = &rsrc_ext->header.cfg_shdr;
*extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
} else {
virtaddr = mbox->sge_array->addr[0];
n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
shdr = &n_rsrc->cfg_shdr;
*extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
}
if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2984 Failed to read allocated resources "
"for type %d - Status 0x%x Add'l Status 0x%x.\n",
type,
bf_get(lpfc_mbox_hdr_status, &shdr->response),
bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
rc = -EIO;
goto err_exit;
}
err_exit:
lpfc_sli4_mbox_cmd_free(phba, mbox);
return rc;
}
/**
* lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
* @phba: pointer to lpfc hba data structure.
* @sgl_list: linked link of sgl buffers to post
* @cnt: number of linked list buffers
*
* This routine walks the list of buffers that have been allocated and
* repost them to the port by using SGL block post. This is needed after a
* pci_function_reset/warm_start or start. It attempts to construct blocks
* of buffer sgls which contains contiguous xris and uses the non-embedded
* SGL block post mailbox commands to post them to the port. For single
* buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
* mailbox command for posting.
*
* Returns: 0 = success, non-zero failure.
**/
static int
lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
struct list_head *sgl_list, int cnt)
{
struct lpfc_sglq *sglq_entry = NULL;
struct lpfc_sglq *sglq_entry_next = NULL;
struct lpfc_sglq *sglq_entry_first = NULL;
int status, total_cnt;
int post_cnt = 0, num_posted = 0, block_cnt = 0;
int last_xritag = NO_XRI;
LIST_HEAD(prep_sgl_list);
LIST_HEAD(blck_sgl_list);
LIST_HEAD(allc_sgl_list);
LIST_HEAD(post_sgl_list);
LIST_HEAD(free_sgl_list);
spin_lock_irq(&phba->hbalock);
spin_lock(&phba->sli4_hba.sgl_list_lock);
list_splice_init(sgl_list, &allc_sgl_list);
spin_unlock(&phba->sli4_hba.sgl_list_lock);
spin_unlock_irq(&phba->hbalock);
total_cnt = cnt;
list_for_each_entry_safe(sglq_entry, sglq_entry_next,
&allc_sgl_list, list) {
list_del_init(&sglq_entry->list);
block_cnt++;
if ((last_xritag != NO_XRI) &&
(sglq_entry->sli4_xritag != last_xritag + 1)) {
/* a hole in xri block, form a sgl posting block */
list_splice_init(&prep_sgl_list, &blck_sgl_list);
post_cnt = block_cnt - 1;
/* prepare list for next posting block */
list_add_tail(&sglq_entry->list, &prep_sgl_list);
block_cnt = 1;
} else {
/* prepare list for next posting block */
list_add_tail(&sglq_entry->list, &prep_sgl_list);
/* enough sgls for non-embed sgl mbox command */
if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
list_splice_init(&prep_sgl_list,
&blck_sgl_list);
post_cnt = block_cnt;
block_cnt = 0;
}
}
num_posted++;
/* keep track of last sgl's xritag */
last_xritag = sglq_entry->sli4_xritag;
/* end of repost sgl list condition for buffers */
if (num_posted == total_cnt) {
if (post_cnt == 0) {
list_splice_init(&prep_sgl_list,
&blck_sgl_list);
post_cnt = block_cnt;
} else if (block_cnt == 1) {
status = lpfc_sli4_post_sgl(phba,
sglq_entry->phys, 0,
sglq_entry->sli4_xritag);
if (!status) {
/* successful, put sgl to posted list */
list_add_tail(&sglq_entry->list,
&post_sgl_list);
} else {
/* Failure, put sgl to free list */
lpfc_printf_log(phba, KERN_WARNING,
LOG_SLI,
"3159 Failed to post "
"sgl, xritag:x%x\n",
sglq_entry->sli4_xritag);
list_add_tail(&sglq_entry->list,
&free_sgl_list);
total_cnt--;
}
}
}
/* continue until a nembed page worth of sgls */
if (post_cnt == 0)
continue;
/* post the buffer list sgls as a block */
status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
post_cnt);
if (!status) {
/* success, put sgl list to posted sgl list */
list_splice_init(&blck_sgl_list, &post_sgl_list);
} else {
/* Failure, put sgl list to free sgl list */
sglq_entry_first = list_first_entry(&blck_sgl_list,
struct lpfc_sglq,
list);
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3160 Failed to post sgl-list, "
"xritag:x%x-x%x\n",
sglq_entry_first->sli4_xritag,
(sglq_entry_first->sli4_xritag +
post_cnt - 1));
list_splice_init(&blck_sgl_list, &free_sgl_list);
total_cnt -= post_cnt;
}
/* don't reset xirtag due to hole in xri block */
if (block_cnt == 0)
last_xritag = NO_XRI;
/* reset sgl post count for next round of posting */
post_cnt = 0;
}
/* free the sgls failed to post */
lpfc_free_sgl_list(phba, &free_sgl_list);
/* push sgls posted to the available list */
if (!list_empty(&post_sgl_list)) {
spin_lock_irq(&phba->hbalock);
spin_lock(&phba->sli4_hba.sgl_list_lock);
list_splice_init(&post_sgl_list, sgl_list);
spin_unlock(&phba->sli4_hba.sgl_list_lock);
spin_unlock_irq(&phba->hbalock);
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3161 Failure to post sgl to port,status %x "
"blkcnt %d totalcnt %d postcnt %d\n",
status, block_cnt, total_cnt, post_cnt);
return -EIO;
}
/* return the number of XRIs actually posted */
return total_cnt;
}
/**
* lpfc_sli4_repost_io_sgl_list - Repost all the allocated nvme buffer sgls
* @phba: pointer to lpfc hba data structure.
*
* This routine walks the list of nvme buffers that have been allocated and
* repost them to the port by using SGL block post. This is needed after a
* pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
* is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list
* to the lpfc_io_buf_list. If the repost fails, reject all nvme buffers.
*
* Returns: 0 = success, non-zero failure.
**/
static int
lpfc_sli4_repost_io_sgl_list(struct lpfc_hba *phba)
{
LIST_HEAD(post_nblist);
int num_posted, rc = 0;
/* get all NVME buffers need to repost to a local list */
lpfc_io_buf_flush(phba, &post_nblist);
/* post the list of nvme buffer sgls to port if available */
if (!list_empty(&post_nblist)) {
num_posted = lpfc_sli4_post_io_sgl_list(
phba, &post_nblist, phba->sli4_hba.io_xri_cnt);
/* failed to post any nvme buffer, return error */
if (num_posted == 0)
rc = -EIO;
}
return rc;
}
static void
lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
uint32_t len;
len = sizeof(struct lpfc_mbx_set_host_data) -
sizeof(struct lpfc_sli4_cfg_mhdr);
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
LPFC_SLI4_MBX_EMBED);
mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
mbox->u.mqe.un.set_host_data.param_len =
LPFC_HOST_OS_DRIVER_VERSION_SIZE;
snprintf(mbox->u.mqe.un.set_host_data.un.data,
LPFC_HOST_OS_DRIVER_VERSION_SIZE,
"Linux %s v"LPFC_DRIVER_VERSION,
(phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
}
int
lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
struct lpfc_queue *drq, int count, int idx)
{
int rc, i;
struct lpfc_rqe hrqe;
struct lpfc_rqe drqe;
struct lpfc_rqb *rqbp;
unsigned long flags;
struct rqb_dmabuf *rqb_buffer;
LIST_HEAD(rqb_buf_list);
rqbp = hrq->rqbp;
for (i = 0; i < count; i++) {
spin_lock_irqsave(&phba->hbalock, flags);
/* IF RQ is already full, don't bother */
if (rqbp->buffer_count + i >= rqbp->entry_count - 1) {
spin_unlock_irqrestore(&phba->hbalock, flags);
break;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
rqb_buffer = rqbp->rqb_alloc_buffer(phba);
if (!rqb_buffer)
break;
rqb_buffer->hrq = hrq;
rqb_buffer->drq = drq;
rqb_buffer->idx = idx;
list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
}
spin_lock_irqsave(&phba->hbalock, flags);
while (!list_empty(&rqb_buf_list)) {
list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
hbuf.list);
hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
if (rc < 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6421 Cannot post to HRQ %d: %x %x %x "
"DRQ %x %x\n",
hrq->queue_id,
hrq->host_index,
hrq->hba_index,
hrq->entry_count,
drq->host_index,
drq->hba_index);
rqbp->rqb_free_buffer(phba, rqb_buffer);
} else {
list_add_tail(&rqb_buffer->hbuf.list,
&rqbp->rqb_buffer_list);
rqbp->buffer_count++;
}
}
spin_unlock_irqrestore(&phba->hbalock, flags);
return 1;
}
static void
lpfc_mbx_cmpl_read_lds_params(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
union lpfc_sli4_cfg_shdr *shdr;
u32 shdr_status, shdr_add_status;
shdr = (union lpfc_sli4_cfg_shdr *)
&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || pmb->u.mb.mbxStatus) {
lpfc_printf_log(phba, KERN_INFO, LOG_LDS_EVENT | LOG_MBOX,
"4622 SET_FEATURE (x%x) mbox failed, "
"status x%x add_status x%x, mbx status x%x\n",
LPFC_SET_LD_SIGNAL, shdr_status,
shdr_add_status, pmb->u.mb.mbxStatus);
phba->degrade_activate_threshold = 0;
phba->degrade_deactivate_threshold = 0;
phba->fec_degrade_interval = 0;
goto out;
}
phba->degrade_activate_threshold = pmb->u.mqe.un.set_feature.word7;
phba->degrade_deactivate_threshold = pmb->u.mqe.un.set_feature.word8;
phba->fec_degrade_interval = pmb->u.mqe.un.set_feature.word10;
lpfc_printf_log(phba, KERN_INFO, LOG_LDS_EVENT,
"4624 Success: da x%x dd x%x interval x%x\n",
phba->degrade_activate_threshold,
phba->degrade_deactivate_threshold,
phba->fec_degrade_interval);
out:
mempool_free(pmb, phba->mbox_mem_pool);
}
int
lpfc_read_lds_params(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
int rc;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
lpfc_set_features(phba, mboxq, LPFC_SET_LD_SIGNAL);
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_lds_params;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mboxq, phba->mbox_mem_pool);
return -EIO;
}
return 0;
}
static void
lpfc_mbx_cmpl_cgn_set_ftrs(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
union lpfc_sli4_cfg_shdr *shdr;
u32 shdr_status, shdr_add_status;
u32 sig, acqe;
/* Two outcomes. (1) Set featurs was successul and EDC negotiation
* is done. (2) Mailbox failed and send FPIN support only.
*/
shdr = (union lpfc_sli4_cfg_shdr *)
&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || pmb->u.mb.mbxStatus) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
"2516 CGN SET_FEATURE mbox failed with "
"status x%x add_status x%x, mbx status x%x "
"Reset Congestion to FPINs only\n",
shdr_status, shdr_add_status,
pmb->u.mb.mbxStatus);
/* If there is a mbox error, move on to RDF */
phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
goto out;
}
/* Zero out Congestion Signal ACQE counter */
phba->cgn_acqe_cnt = 0;
acqe = bf_get(lpfc_mbx_set_feature_CGN_acqe_freq,
&pmb->u.mqe.un.set_feature);
sig = bf_get(lpfc_mbx_set_feature_CGN_warn_freq,
&pmb->u.mqe.un.set_feature);
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"4620 SET_FEATURES Success: Freq: %ds %dms "
" Reg: x%x x%x\n", acqe, sig,
phba->cgn_reg_signal, phba->cgn_reg_fpin);
out:
mempool_free(pmb, phba->mbox_mem_pool);
/* Register for FPIN events from the fabric now that the
* EDC common_set_features has completed.
*/
lpfc_issue_els_rdf(vport, 0);
}
int
lpfc_config_cgn_signal(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
u32 rc;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
goto out_rdf;
lpfc_set_features(phba, mboxq, LPFC_SET_CGN_SIGNAL);
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_cgn_set_ftrs;
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"4621 SET_FEATURES: FREQ sig x%x acqe x%x: "
"Reg: x%x x%x\n",
phba->cgn_sig_freq, lpfc_acqe_cgn_frequency,
phba->cgn_reg_signal, phba->cgn_reg_fpin);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
goto out;
return 0;
out:
mempool_free(mboxq, phba->mbox_mem_pool);
out_rdf:
/* If there is a mbox error, move on to RDF */
phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
lpfc_issue_els_rdf(phba->pport, 0);
return -EIO;
}
/**
* lpfc_init_idle_stat_hb - Initialize idle_stat tracking
* @phba: pointer to lpfc hba data structure.
*
* This routine initializes the per-eq idle_stat to dynamically dictate
* polling decisions.
*
* Return codes:
* None
**/
static void lpfc_init_idle_stat_hb(struct lpfc_hba *phba)
{
int i;
struct lpfc_sli4_hdw_queue *hdwq;
struct lpfc_queue *eq;
struct lpfc_idle_stat *idle_stat;
u64 wall;
for_each_present_cpu(i) {
hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
eq = hdwq->hba_eq;
/* Skip if we've already handled this eq's primary CPU */
if (eq->chann != i)
continue;
idle_stat = &phba->sli4_hba.idle_stat[i];
idle_stat->prev_idle = get_cpu_idle_time(i, &wall, 1);
idle_stat->prev_wall = wall;
if (phba->nvmet_support ||
phba->cmf_active_mode != LPFC_CFG_OFF ||
phba->intr_type != MSIX)
eq->poll_mode = LPFC_QUEUE_WORK;
else
eq->poll_mode = LPFC_THREADED_IRQ;
}
if (!phba->nvmet_support && phba->intr_type == MSIX)
schedule_delayed_work(&phba->idle_stat_delay_work,
msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
}
static void lpfc_sli4_dip(struct lpfc_hba *phba)
{
uint32_t if_type;
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
if (if_type == LPFC_SLI_INTF_IF_TYPE_2 ||
if_type == LPFC_SLI_INTF_IF_TYPE_6) {
struct lpfc_register reg_data;
if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
®_data.word0))
return;
if (bf_get(lpfc_sliport_status_dip, ®_data))
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"2904 Firmware Dump Image Present"
" on Adapter");
}
}
/**
* lpfc_rx_monitor_create_ring - Initialize ring buffer for rx_monitor
* @rx_monitor: Pointer to lpfc_rx_info_monitor object
* @entries: Number of rx_info_entry objects to allocate in ring
*
* Return:
* 0 - Success
* ENOMEM - Failure to kmalloc
**/
int lpfc_rx_monitor_create_ring(struct lpfc_rx_info_monitor *rx_monitor,
u32 entries)
{
rx_monitor->ring = kmalloc_array(entries, sizeof(struct rx_info_entry),
GFP_KERNEL);
if (!rx_monitor->ring)
return -ENOMEM;
rx_monitor->head_idx = 0;
rx_monitor->tail_idx = 0;
spin_lock_init(&rx_monitor->lock);
rx_monitor->entries = entries;
return 0;
}
/**
* lpfc_rx_monitor_destroy_ring - Free ring buffer for rx_monitor
* @rx_monitor: Pointer to lpfc_rx_info_monitor object
*
* Called after cancellation of cmf_timer.
**/
void lpfc_rx_monitor_destroy_ring(struct lpfc_rx_info_monitor *rx_monitor)
{
kfree(rx_monitor->ring);
rx_monitor->ring = NULL;
rx_monitor->entries = 0;
rx_monitor->head_idx = 0;
rx_monitor->tail_idx = 0;
}
/**
* lpfc_rx_monitor_record - Insert an entry into rx_monitor's ring
* @rx_monitor: Pointer to lpfc_rx_info_monitor object
* @entry: Pointer to rx_info_entry
*
* Used to insert an rx_info_entry into rx_monitor's ring. Note that this is a
* deep copy of rx_info_entry not a shallow copy of the rx_info_entry ptr.
*
* This is called from lpfc_cmf_timer, which is in timer/softirq context.
*
* In cases of old data overflow, we do a best effort of FIFO order.
**/
void lpfc_rx_monitor_record(struct lpfc_rx_info_monitor *rx_monitor,
struct rx_info_entry *entry)
{
struct rx_info_entry *ring = rx_monitor->ring;
u32 *head_idx = &rx_monitor->head_idx;
u32 *tail_idx = &rx_monitor->tail_idx;
spinlock_t *ring_lock = &rx_monitor->lock;
u32 ring_size = rx_monitor->entries;
spin_lock(ring_lock);
memcpy(&ring[*tail_idx], entry, sizeof(*entry));
*tail_idx = (*tail_idx + 1) % ring_size;
/* Best effort of FIFO saved data */
if (*tail_idx == *head_idx)
*head_idx = (*head_idx + 1) % ring_size;
spin_unlock(ring_lock);
}
/**
* lpfc_rx_monitor_report - Read out rx_monitor's ring
* @phba: Pointer to lpfc_hba object
* @rx_monitor: Pointer to lpfc_rx_info_monitor object
* @buf: Pointer to char buffer that will contain rx monitor info data
* @buf_len: Length buf including null char
* @max_read_entries: Maximum number of entries to read out of ring
*
* Used to dump/read what's in rx_monitor's ring buffer.
*
* If buf is NULL || buf_len == 0, then it is implied that we want to log the
* information to kmsg instead of filling out buf.
*
* Return:
* Number of entries read out of the ring
**/
u32 lpfc_rx_monitor_report(struct lpfc_hba *phba,
struct lpfc_rx_info_monitor *rx_monitor, char *buf,
u32 buf_len, u32 max_read_entries)
{
struct rx_info_entry *ring = rx_monitor->ring;
struct rx_info_entry *entry;
u32 *head_idx = &rx_monitor->head_idx;
u32 *tail_idx = &rx_monitor->tail_idx;
spinlock_t *ring_lock = &rx_monitor->lock;
u32 ring_size = rx_monitor->entries;
u32 cnt = 0;
char tmp[DBG_LOG_STR_SZ] = {0};
bool log_to_kmsg = (!buf || !buf_len) ? true : false;
if (!log_to_kmsg) {
/* clear the buffer to be sure */
memset(buf, 0, buf_len);
scnprintf(buf, buf_len, "\t%-16s%-16s%-16s%-16s%-8s%-8s%-8s"
"%-8s%-8s%-8s%-16s\n",
"MaxBPI", "Tot_Data_CMF",
"Tot_Data_Cmd", "Tot_Data_Cmpl",
"Lat(us)", "Avg_IO", "Max_IO", "Bsy",
"IO_cnt", "Info", "BWutil(ms)");
}
/* Needs to be _irq because record is called from timer interrupt
* context
*/
spin_lock_irq(ring_lock);
while (*head_idx != *tail_idx) {
entry = &ring[*head_idx];
/* Read out this entry's data. */
if (!log_to_kmsg) {
/* If !log_to_kmsg, then store to buf. */
scnprintf(tmp, sizeof(tmp),
"%03d:\t%-16llu%-16llu%-16llu%-16llu%-8llu"
"%-8llu%-8llu%-8u%-8u%-8u%u(%u)\n",
*head_idx, entry->max_bytes_per_interval,
entry->cmf_bytes, entry->total_bytes,
entry->rcv_bytes, entry->avg_io_latency,
entry->avg_io_size, entry->max_read_cnt,
entry->cmf_busy, entry->io_cnt,
entry->cmf_info, entry->timer_utilization,
entry->timer_interval);
/* Check for buffer overflow */
if ((strlen(buf) + strlen(tmp)) >= buf_len)
break;
/* Append entry's data to buffer */
strlcat(buf, tmp, buf_len);
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"4410 %02u: MBPI %llu Xmit %llu "
"Cmpl %llu Lat %llu ASz %llu Info %02u "
"BWUtil %u Int %u slot %u\n",
cnt, entry->max_bytes_per_interval,
entry->total_bytes, entry->rcv_bytes,
entry->avg_io_latency,
entry->avg_io_size, entry->cmf_info,
entry->timer_utilization,
entry->timer_interval, *head_idx);
}
*head_idx = (*head_idx + 1) % ring_size;
/* Don't feed more than max_read_entries */
cnt++;
if (cnt >= max_read_entries)
break;
}
spin_unlock_irq(ring_lock);
return cnt;
}
/**
* lpfc_cmf_setup - Initialize idle_stat tracking
* @phba: Pointer to HBA context object.
*
* This is called from HBA setup during driver load or when the HBA
* comes online. this does all the initialization to support CMF and MI.
**/
static int
lpfc_cmf_setup(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
struct lpfc_dmabuf *mp;
struct lpfc_pc_sli4_params *sli4_params;
int rc, cmf, mi_ver;
rc = lpfc_sli4_refresh_params(phba);
if (unlikely(rc))
return rc;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
sli4_params = &phba->sli4_hba.pc_sli4_params;
/* Always try to enable MI feature if we can */
if (sli4_params->mi_ver) {
lpfc_set_features(phba, mboxq, LPFC_SET_ENABLE_MI);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
mi_ver = bf_get(lpfc_mbx_set_feature_mi,
&mboxq->u.mqe.un.set_feature);
if (rc == MBX_SUCCESS) {
if (mi_ver) {
lpfc_printf_log(phba,
KERN_WARNING, LOG_CGN_MGMT,
"6215 MI is enabled\n");
sli4_params->mi_ver = mi_ver;
} else {
lpfc_printf_log(phba,
KERN_WARNING, LOG_CGN_MGMT,
"6338 MI is disabled\n");
sli4_params->mi_ver = 0;
}
} else {
/* mi_ver is already set from GET_SLI4_PARAMETERS */
lpfc_printf_log(phba, KERN_INFO,
LOG_CGN_MGMT | LOG_INIT,
"6245 Enable MI Mailbox x%x (x%x/x%x) "
"failed, rc:x%x mi:x%x\n",
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
lpfc_sli_config_mbox_subsys_get
(phba, mboxq),
lpfc_sli_config_mbox_opcode_get
(phba, mboxq),
rc, sli4_params->mi_ver);
}
} else {
lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
"6217 MI is disabled\n");
}
/* Ensure FDMI is enabled for MI if enable_mi is set */
if (sli4_params->mi_ver)
phba->cfg_fdmi_on = LPFC_FDMI_SUPPORT;
/* Always try to enable CMF feature if we can */
if (sli4_params->cmf) {
lpfc_set_features(phba, mboxq, LPFC_SET_ENABLE_CMF);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
cmf = bf_get(lpfc_mbx_set_feature_cmf,
&mboxq->u.mqe.un.set_feature);
if (rc == MBX_SUCCESS && cmf) {
lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
"6218 CMF is enabled: mode %d\n",
phba->cmf_active_mode);
} else {
lpfc_printf_log(phba, KERN_WARNING,
LOG_CGN_MGMT | LOG_INIT,
"6219 Enable CMF Mailbox x%x (x%x/x%x) "
"failed, rc:x%x dd:x%x\n",
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
lpfc_sli_config_mbox_subsys_get
(phba, mboxq),
lpfc_sli_config_mbox_opcode_get
(phba, mboxq),
rc, cmf);
sli4_params->cmf = 0;
phba->cmf_active_mode = LPFC_CFG_OFF;
goto no_cmf;
}
/* Allocate Congestion Information Buffer */
if (!phba->cgn_i) {
mp = kmalloc(sizeof(*mp), GFP_KERNEL);
if (mp)
mp->virt = dma_alloc_coherent
(&phba->pcidev->dev,
sizeof(struct lpfc_cgn_info),
&mp->phys, GFP_KERNEL);
if (!mp || !mp->virt) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2640 Failed to alloc memory "
"for Congestion Info\n");
kfree(mp);
sli4_params->cmf = 0;
phba->cmf_active_mode = LPFC_CFG_OFF;
goto no_cmf;
}
phba->cgn_i = mp;
/* initialize congestion buffer info */
lpfc_init_congestion_buf(phba);
lpfc_init_congestion_stat(phba);
/* Zero out Congestion Signal counters */
atomic64_set(&phba->cgn_acqe_stat.alarm, 0);
atomic64_set(&phba->cgn_acqe_stat.warn, 0);
}
rc = lpfc_sli4_cgn_params_read(phba);
if (rc < 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
"6242 Error reading Cgn Params (%d)\n",
rc);
/* Ensure CGN Mode is off */
sli4_params->cmf = 0;
} else if (!rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
"6243 CGN Event empty object.\n");
/* Ensure CGN Mode is off */
sli4_params->cmf = 0;
}
} else {
no_cmf:
lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
"6220 CMF is disabled\n");
}
/* Only register congestion buffer with firmware if BOTH
* CMF and E2E are enabled.
*/
if (sli4_params->cmf && sli4_params->mi_ver) {
rc = lpfc_reg_congestion_buf(phba);
if (rc) {
dma_free_coherent(&phba->pcidev->dev,
sizeof(struct lpfc_cgn_info),
phba->cgn_i->virt, phba->cgn_i->phys);
kfree(phba->cgn_i);
phba->cgn_i = NULL;
/* Ensure CGN Mode is off */
phba->cmf_active_mode = LPFC_CFG_OFF;
sli4_params->cmf = 0;
return 0;
}
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"6470 Setup MI version %d CMF %d mode %d\n",
sli4_params->mi_ver, sli4_params->cmf,
phba->cmf_active_mode);
mempool_free(mboxq, phba->mbox_mem_pool);
/* Initialize atomic counters */
atomic_set(&phba->cgn_fabric_warn_cnt, 0);
atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
atomic_set(&phba->cgn_sync_alarm_cnt, 0);
atomic_set(&phba->cgn_sync_warn_cnt, 0);
atomic_set(&phba->cgn_driver_evt_cnt, 0);
atomic_set(&phba->cgn_latency_evt_cnt, 0);
atomic64_set(&phba->cgn_latency_evt, 0);
phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
/* Allocate RX Monitor Buffer */
if (!phba->rx_monitor) {
phba->rx_monitor = kzalloc(sizeof(*phba->rx_monitor),
GFP_KERNEL);
if (!phba->rx_monitor) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2644 Failed to alloc memory "
"for RX Monitor Buffer\n");
return -ENOMEM;
}
/* Instruct the rx_monitor object to instantiate its ring */
if (lpfc_rx_monitor_create_ring(phba->rx_monitor,
LPFC_MAX_RXMONITOR_ENTRY)) {
kfree(phba->rx_monitor);
phba->rx_monitor = NULL;
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2645 Failed to alloc memory "
"for RX Monitor's Ring\n");
return -ENOMEM;
}
}
return 0;
}
static int
lpfc_set_host_tm(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
uint32_t len, rc;
struct timespec64 cur_time;
struct tm broken;
uint32_t month, day, year;
uint32_t hour, minute, second;
struct lpfc_mbx_set_host_date_time *tm;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
len = sizeof(struct lpfc_mbx_set_host_data) -
sizeof(struct lpfc_sli4_cfg_mhdr);
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
LPFC_SLI4_MBX_EMBED);
mboxq->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_DATE_TIME;
mboxq->u.mqe.un.set_host_data.param_len =
sizeof(struct lpfc_mbx_set_host_date_time);
tm = &mboxq->u.mqe.un.set_host_data.un.tm;
ktime_get_real_ts64(&cur_time);
time64_to_tm(cur_time.tv_sec, 0, &broken);
month = broken.tm_mon + 1;
day = broken.tm_mday;
year = broken.tm_year - 100;
hour = broken.tm_hour;
minute = broken.tm_min;
second = broken.tm_sec;
bf_set(lpfc_mbx_set_host_month, tm, month);
bf_set(lpfc_mbx_set_host_day, tm, day);
bf_set(lpfc_mbx_set_host_year, tm, year);
bf_set(lpfc_mbx_set_host_hour, tm, hour);
bf_set(lpfc_mbx_set_host_min, tm, minute);
bf_set(lpfc_mbx_set_host_sec, tm, second);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
mempool_free(mboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_sli4_hba_setup - SLI4 device initialization PCI function
* @phba: Pointer to HBA context object.
*
* This function is the main SLI4 device initialization PCI function. This
* function is called by the HBA initialization code, HBA reset code and
* HBA error attention handler code. Caller is not required to hold any
* locks.
**/
int
lpfc_sli4_hba_setup(struct lpfc_hba *phba)
{
int rc, i, cnt, len, dd;
LPFC_MBOXQ_t *mboxq;
struct lpfc_mqe *mqe;
uint8_t *vpd;
uint32_t vpd_size;
uint32_t ftr_rsp = 0;
struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
struct lpfc_vport *vport = phba->pport;
struct lpfc_dmabuf *mp;
struct lpfc_rqb *rqbp;
u32 flg;
/* Perform a PCI function reset to start from clean */
rc = lpfc_pci_function_reset(phba);
if (unlikely(rc))
return -ENODEV;
/* Check the HBA Host Status Register for readyness */
rc = lpfc_sli4_post_status_check(phba);
if (unlikely(rc))
return -ENODEV;
else {
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
flg = phba->sli.sli_flag;
spin_unlock_irq(&phba->hbalock);
/* Allow a little time after setting SLI_ACTIVE for any polled
* MBX commands to complete via BSG.
*/
for (i = 0; i < 50 && (flg & LPFC_SLI_MBOX_ACTIVE); i++) {
msleep(20);
spin_lock_irq(&phba->hbalock);
flg = phba->sli.sli_flag;
spin_unlock_irq(&phba->hbalock);
}
}
phba->hba_flag &= ~HBA_SETUP;
lpfc_sli4_dip(phba);
/*
* Allocate a single mailbox container for initializing the
* port.
*/
mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
/* Issue READ_REV to collect vpd and FW information. */
vpd_size = SLI4_PAGE_SIZE;
vpd = kzalloc(vpd_size, GFP_KERNEL);
if (!vpd) {
rc = -ENOMEM;
goto out_free_mbox;
}
rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
if (unlikely(rc)) {
kfree(vpd);
goto out_free_mbox;
}
mqe = &mboxq->u.mqe;
phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
phba->hba_flag |= HBA_FCOE_MODE;
phba->fcp_embed_io = 0; /* SLI4 FC support only */
} else {
phba->hba_flag &= ~HBA_FCOE_MODE;
}
if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
LPFC_DCBX_CEE_MODE)
phba->hba_flag |= HBA_FIP_SUPPORT;
else
phba->hba_flag &= ~HBA_FIP_SUPPORT;
phba->hba_flag &= ~HBA_IOQ_FLUSH;
if (phba->sli_rev != LPFC_SLI_REV4) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0376 READ_REV Error. SLI Level %d "
"FCoE enabled %d\n",
phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
rc = -EIO;
kfree(vpd);
goto out_free_mbox;
}
rc = lpfc_set_host_tm(phba);
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
"6468 Set host date / time: Status x%x:\n", rc);
/*
* Continue initialization with default values even if driver failed
* to read FCoE param config regions, only read parameters if the
* board is FCoE
*/
if (phba->hba_flag & HBA_FCOE_MODE &&
lpfc_sli4_read_fcoe_params(phba))
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
"2570 Failed to read FCoE parameters\n");
/*
* Retrieve sli4 device physical port name, failure of doing it
* is considered as non-fatal.
*/
rc = lpfc_sli4_retrieve_pport_name(phba);
if (!rc)
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"3080 Successful retrieving SLI4 device "
"physical port name: %s.\n", phba->Port);
rc = lpfc_sli4_get_ctl_attr(phba);
if (!rc)
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"8351 Successful retrieving SLI4 device "
"CTL ATTR\n");
/*
* Evaluate the read rev and vpd data. Populate the driver
* state with the results. If this routine fails, the failure
* is not fatal as the driver will use generic values.
*/
rc = lpfc_parse_vpd(phba, vpd, vpd_size);
if (unlikely(!rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0377 Error %d parsing vpd. "
"Using defaults.\n", rc);
rc = 0;
}
kfree(vpd);
/* Save information as VPD data */
phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
/*
* This is because first G7 ASIC doesn't support the standard
* 0x5a NVME cmd descriptor type/subtype
*/
if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_6) &&
(phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
(phba->vpd.rev.smRev == 0) &&
(phba->cfg_nvme_embed_cmd == 1))
phba->cfg_nvme_embed_cmd = 0;
phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
&mqe->un.read_rev);
phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
&mqe->un.read_rev);
phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
&mqe->un.read_rev);
phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
&mqe->un.read_rev);
phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"(%d):0380 READ_REV Status x%x "
"fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
bf_get(lpfc_mqe_status, mqe),
phba->vpd.rev.opFwName,
phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_0) {
lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc == MBX_SUCCESS) {
phba->hba_flag |= HBA_RECOVERABLE_UE;
/* Set 1Sec interval to detect UE */
phba->eratt_poll_interval = 1;
phba->sli4_hba.ue_to_sr = bf_get(
lpfc_mbx_set_feature_UESR,
&mboxq->u.mqe.un.set_feature);
phba->sli4_hba.ue_to_rp = bf_get(
lpfc_mbx_set_feature_UERP,
&mboxq->u.mqe.un.set_feature);
}
}
if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
/* Enable MDS Diagnostics only if the SLI Port supports it */
lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc != MBX_SUCCESS)
phba->mds_diags_support = 0;
}
/*
* Discover the port's supported feature set and match it against the
* hosts requests.
*/
lpfc_request_features(phba, mboxq);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (unlikely(rc)) {
rc = -EIO;
goto out_free_mbox;
}
/* Disable VMID if app header is not supported */
if (phba->cfg_vmid_app_header && !(bf_get(lpfc_mbx_rq_ftr_rsp_ashdr,
&mqe->un.req_ftrs))) {
bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 0);
phba->cfg_vmid_app_header = 0;
lpfc_printf_log(phba, KERN_DEBUG, LOG_SLI,
"1242 vmid feature not supported\n");
}
/*
* The port must support FCP initiator mode as this is the
* only mode running in the host.
*/
if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
"0378 No support for fcpi mode.\n");
ftr_rsp++;
}
/* Performance Hints are ONLY for FCoE */
if (phba->hba_flag & HBA_FCOE_MODE) {
if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
else
phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
}
/*
* If the port cannot support the host's requested features
* then turn off the global config parameters to disable the
* feature in the driver. This is not a fatal error.
*/
if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
phba->cfg_enable_bg = 0;
phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
ftr_rsp++;
}
}
if (phba->max_vpi && phba->cfg_enable_npiv &&
!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
ftr_rsp++;
if (ftr_rsp) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
"0379 Feature Mismatch Data: x%08x %08x "
"x%x x%x x%x\n", mqe->un.req_ftrs.word2,
mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
phba->cfg_enable_npiv, phba->max_vpi);
if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
phba->cfg_enable_bg = 0;
if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
phba->cfg_enable_npiv = 0;
}
/* These SLI3 features are assumed in SLI4 */
spin_lock_irq(&phba->hbalock);
phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
spin_unlock_irq(&phba->hbalock);
/* Always try to enable dual dump feature if we can */
lpfc_set_features(phba, mboxq, LPFC_SET_DUAL_DUMP);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
dd = bf_get(lpfc_mbx_set_feature_dd, &mboxq->u.mqe.un.set_feature);
if ((rc == MBX_SUCCESS) && (dd == LPFC_ENABLE_DUAL_DUMP))
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"6448 Dual Dump is enabled\n");
else
lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_INIT,
"6447 Dual Dump Mailbox x%x (x%x/x%x) failed, "
"rc:x%x dd:x%x\n",
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
lpfc_sli_config_mbox_subsys_get(
phba, mboxq),
lpfc_sli_config_mbox_opcode_get(
phba, mboxq),
rc, dd);
/*
* Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
* calls depends on these resources to complete port setup.
*/
rc = lpfc_sli4_alloc_resource_identifiers(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2920 Failed to alloc Resource IDs "
"rc = x%x\n", rc);
goto out_free_mbox;
}
lpfc_set_host_data(phba, mboxq);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
"2134 Failed to set host os driver version %x",
rc);
}
/* Read the port's service parameters. */
rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
if (rc) {
phba->link_state = LPFC_HBA_ERROR;
rc = -ENOMEM;
goto out_free_mbox;
}
mboxq->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
if (rc == MBX_SUCCESS) {
memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
rc = 0;
}
/*
* This memory was allocated by the lpfc_read_sparam routine but is
* no longer needed. It is released and ctx_buf NULLed to prevent
* unintended pointer access as the mbox is reused.
*/
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mboxq->ctx_buf = NULL;
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0382 READ_SPARAM command failed "
"status %d, mbxStatus x%x\n",
rc, bf_get(lpfc_mqe_status, mqe));
phba->link_state = LPFC_HBA_ERROR;
rc = -EIO;
goto out_free_mbox;
}
lpfc_update_vport_wwn(vport);
/* Update the fc_host data structures with new wwn. */
fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
/* Create all the SLI4 queues */
rc = lpfc_sli4_queue_create(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3089 Failed to allocate queues\n");
rc = -ENODEV;
goto out_free_mbox;
}
/* Set up all the queues to the device */
rc = lpfc_sli4_queue_setup(phba);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0381 Error %d during queue setup.\n ", rc);
goto out_stop_timers;
}
/* Initialize the driver internal SLI layer lists. */
lpfc_sli4_setup(phba);
lpfc_sli4_queue_init(phba);
/* update host els xri-sgl sizes and mappings */
rc = lpfc_sli4_els_sgl_update(phba);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1400 Failed to update xri-sgl size and "
"mapping: %d\n", rc);
goto out_destroy_queue;
}
/* register the els sgl pool to the port */
rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
phba->sli4_hba.els_xri_cnt);
if (unlikely(rc < 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0582 Error %d during els sgl post "
"operation\n", rc);
rc = -ENODEV;
goto out_destroy_queue;
}
phba->sli4_hba.els_xri_cnt = rc;
if (phba->nvmet_support) {
/* update host nvmet xri-sgl sizes and mappings */
rc = lpfc_sli4_nvmet_sgl_update(phba);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6308 Failed to update nvmet-sgl size "
"and mapping: %d\n", rc);
goto out_destroy_queue;
}
/* register the nvmet sgl pool to the port */
rc = lpfc_sli4_repost_sgl_list(
phba,
&phba->sli4_hba.lpfc_nvmet_sgl_list,
phba->sli4_hba.nvmet_xri_cnt);
if (unlikely(rc < 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3117 Error %d during nvmet "
"sgl post\n", rc);
rc = -ENODEV;
goto out_destroy_queue;
}
phba->sli4_hba.nvmet_xri_cnt = rc;
/* We allocate an iocbq for every receive context SGL.
* The additional allocation is for abort and ls handling.
*/
cnt = phba->sli4_hba.nvmet_xri_cnt +
phba->sli4_hba.max_cfg_param.max_xri;
} else {
/* update host common xri-sgl sizes and mappings */
rc = lpfc_sli4_io_sgl_update(phba);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6082 Failed to update nvme-sgl size "
"and mapping: %d\n", rc);
goto out_destroy_queue;
}
/* register the allocated common sgl pool to the port */
rc = lpfc_sli4_repost_io_sgl_list(phba);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6116 Error %d during nvme sgl post "
"operation\n", rc);
/* Some NVME buffers were moved to abort nvme list */
/* A pci function reset will repost them */
rc = -ENODEV;
goto out_destroy_queue;
}
/* Each lpfc_io_buf job structure has an iocbq element.
* This cnt provides for abort, els, ct and ls requests.
*/
cnt = phba->sli4_hba.max_cfg_param.max_xri;
}
if (!phba->sli.iocbq_lookup) {
/* Initialize and populate the iocb list per host */
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2821 initialize iocb list with %d entries\n",
cnt);
rc = lpfc_init_iocb_list(phba, cnt);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1413 Failed to init iocb list.\n");
goto out_destroy_queue;
}
}
if (phba->nvmet_support)
lpfc_nvmet_create_targetport(phba);
if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
/* Post initial buffers to all RQs created */
for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
rqbp->buffer_count = 0;
lpfc_post_rq_buffer(
phba, phba->sli4_hba.nvmet_mrq_hdr[i],
phba->sli4_hba.nvmet_mrq_data[i],
phba->cfg_nvmet_mrq_post, i);
}
}
/* Post the rpi header region to the device. */
rc = lpfc_sli4_post_all_rpi_hdrs(phba);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0393 Error %d during rpi post operation\n",
rc);
rc = -ENODEV;
goto out_free_iocblist;
}
lpfc_sli4_node_prep(phba);
if (!(phba->hba_flag & HBA_FCOE_MODE)) {
if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
/*
* The FC Port needs to register FCFI (index 0)
*/
lpfc_reg_fcfi(phba, mboxq);
mboxq->vport = phba->pport;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc != MBX_SUCCESS)
goto out_unset_queue;
rc = 0;
phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
&mboxq->u.mqe.un.reg_fcfi);
} else {
/* We are a NVME Target mode with MRQ > 1 */
/* First register the FCFI */
lpfc_reg_fcfi_mrq(phba, mboxq, 0);
mboxq->vport = phba->pport;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc != MBX_SUCCESS)
goto out_unset_queue;
rc = 0;
phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
&mboxq->u.mqe.un.reg_fcfi_mrq);
/* Next register the MRQs */
lpfc_reg_fcfi_mrq(phba, mboxq, 1);
mboxq->vport = phba->pport;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc != MBX_SUCCESS)
goto out_unset_queue;
rc = 0;
}
/* Check if the port is configured to be disabled */
lpfc_sli_read_link_ste(phba);
}
/* Don't post more new bufs if repost already recovered
* the nvme sgls.
*/
if (phba->nvmet_support == 0) {
if (phba->sli4_hba.io_xri_cnt == 0) {
len = lpfc_new_io_buf(
phba, phba->sli4_hba.io_xri_max);
if (len == 0) {
rc = -ENOMEM;
goto out_unset_queue;
}
if (phba->cfg_xri_rebalancing)
lpfc_create_multixri_pools(phba);
}
} else {
phba->cfg_xri_rebalancing = 0;
}
/* Allow asynchronous mailbox command to go through */
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
spin_unlock_irq(&phba->hbalock);
/* Post receive buffers to the device */
lpfc_sli4_rb_setup(phba);
/* Reset HBA FCF states after HBA reset */
phba->fcf.fcf_flag = 0;
phba->fcf.current_rec.flag = 0;
/* Start the ELS watchdog timer */
mod_timer(&vport->els_tmofunc,
jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
/* Start heart beat timer */
mod_timer(&phba->hb_tmofunc,
jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
phba->last_completion_time = jiffies;
/* start eq_delay heartbeat */
if (phba->cfg_auto_imax)
queue_delayed_work(phba->wq, &phba->eq_delay_work,
msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
/* start per phba idle_stat_delay heartbeat */
lpfc_init_idle_stat_hb(phba);
/* Start error attention (ERATT) polling timer */
mod_timer(&phba->eratt_poll,
jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
/*
* The port is ready, set the host's link state to LINK_DOWN
* in preparation for link interrupts.
*/
spin_lock_irq(&phba->hbalock);
phba->link_state = LPFC_LINK_DOWN;
/* Check if physical ports are trunked */
if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
phba->trunk_link.link0.state = LPFC_LINK_DOWN;
if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
phba->trunk_link.link1.state = LPFC_LINK_DOWN;
if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
phba->trunk_link.link2.state = LPFC_LINK_DOWN;
if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
phba->trunk_link.link3.state = LPFC_LINK_DOWN;
spin_unlock_irq(&phba->hbalock);
/* Arm the CQs and then EQs on device */
lpfc_sli4_arm_cqeq_intr(phba);
/* Indicate device interrupt mode */
phba->sli4_hba.intr_enable = 1;
/* Setup CMF after HBA is initialized */
lpfc_cmf_setup(phba);
if (!(phba->hba_flag & HBA_FCOE_MODE) &&
(phba->hba_flag & LINK_DISABLED)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3103 Adapter Link is disabled.\n");
lpfc_down_link(phba, mboxq);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3104 Adapter failed to issue "
"DOWN_LINK mbox cmd, rc:x%x\n", rc);
goto out_io_buff_free;
}
} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
/* don't perform init_link on SLI4 FC port loopback test */
if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
if (rc)
goto out_io_buff_free;
}
}
mempool_free(mboxq, phba->mbox_mem_pool);
/* Enable RAS FW log support */
lpfc_sli4_ras_setup(phba);
phba->hba_flag |= HBA_SETUP;
return rc;
out_io_buff_free:
/* Free allocated IO Buffers */
lpfc_io_free(phba);
out_unset_queue:
/* Unset all the queues set up in this routine when error out */
lpfc_sli4_queue_unset(phba);
out_free_iocblist:
lpfc_free_iocb_list(phba);
out_destroy_queue:
lpfc_sli4_queue_destroy(phba);
out_stop_timers:
lpfc_stop_hba_timers(phba);
out_free_mbox:
mempool_free(mboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_mbox_timeout - Timeout call back function for mbox timer
* @t: Context to fetch pointer to hba structure from.
*
* This is the callback function for mailbox timer. The mailbox
* timer is armed when a new mailbox command is issued and the timer
* is deleted when the mailbox complete. The function is called by
* the kernel timer code when a mailbox does not complete within
* expected time. This function wakes up the worker thread to
* process the mailbox timeout and returns. All the processing is
* done by the worker thread function lpfc_mbox_timeout_handler.
**/
void
lpfc_mbox_timeout(struct timer_list *t)
{
struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
unsigned long iflag;
uint32_t tmo_posted;
spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
if (!tmo_posted)
phba->pport->work_port_events |= WORKER_MBOX_TMO;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
if (!tmo_posted)
lpfc_worker_wake_up(phba);
return;
}
/**
* lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
* are pending
* @phba: Pointer to HBA context object.
*
* This function checks if any mailbox completions are present on the mailbox
* completion queue.
**/
static bool
lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
{
uint32_t idx;
struct lpfc_queue *mcq;
struct lpfc_mcqe *mcqe;
bool pending_completions = false;
uint8_t qe_valid;
if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
return false;
/* Check for completions on mailbox completion queue */
mcq = phba->sli4_hba.mbx_cq;
idx = mcq->hba_index;
qe_valid = mcq->qe_valid;
while (bf_get_le32(lpfc_cqe_valid,
(struct lpfc_cqe *)lpfc_sli4_qe(mcq, idx)) == qe_valid) {
mcqe = (struct lpfc_mcqe *)(lpfc_sli4_qe(mcq, idx));
if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
(!bf_get_le32(lpfc_trailer_async, mcqe))) {
pending_completions = true;
break;
}
idx = (idx + 1) % mcq->entry_count;
if (mcq->hba_index == idx)
break;
/* if the index wrapped around, toggle the valid bit */
if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
qe_valid = (qe_valid) ? 0 : 1;
}
return pending_completions;
}
/**
* lpfc_sli4_process_missed_mbox_completions - process mbox completions
* that were missed.
* @phba: Pointer to HBA context object.
*
* For sli4, it is possible to miss an interrupt. As such mbox completions
* maybe missed causing erroneous mailbox timeouts to occur. This function
* checks to see if mbox completions are on the mailbox completion queue
* and will process all the completions associated with the eq for the
* mailbox completion queue.
**/
static bool
lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
{
struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
uint32_t eqidx;
struct lpfc_queue *fpeq = NULL;
struct lpfc_queue *eq;
bool mbox_pending;
if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
return false;
/* Find the EQ associated with the mbox CQ */
if (sli4_hba->hdwq) {
for (eqidx = 0; eqidx < phba->cfg_irq_chann; eqidx++) {
eq = phba->sli4_hba.hba_eq_hdl[eqidx].eq;
if (eq && eq->queue_id == sli4_hba->mbx_cq->assoc_qid) {
fpeq = eq;
break;
}
}
}
if (!fpeq)
return false;
/* Turn off interrupts from this EQ */
sli4_hba->sli4_eq_clr_intr(fpeq);
/* Check to see if a mbox completion is pending */
mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
/*
* If a mbox completion is pending, process all the events on EQ
* associated with the mbox completion queue (this could include
* mailbox commands, async events, els commands, receive queue data
* and fcp commands)
*/
if (mbox_pending)
/* process and rearm the EQ */
lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM,
LPFC_QUEUE_WORK);
else
/* Always clear and re-arm the EQ */
sli4_hba->sli4_write_eq_db(phba, fpeq, 0, LPFC_QUEUE_REARM);
return mbox_pending;
}
/**
* lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
* @phba: Pointer to HBA context object.
*
* This function is called from worker thread when a mailbox command times out.
* The caller is not required to hold any locks. This function will reset the
* HBA and recover all the pending commands.
**/
void
lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
MAILBOX_t *mb = NULL;
struct lpfc_sli *psli = &phba->sli;
/* If the mailbox completed, process the completion */
lpfc_sli4_process_missed_mbox_completions(phba);
if (!(psli->sli_flag & LPFC_SLI_ACTIVE))
return;
if (pmbox != NULL)
mb = &pmbox->u.mb;
/* Check the pmbox pointer first. There is a race condition
* between the mbox timeout handler getting executed in the
* worklist and the mailbox actually completing. When this
* race condition occurs, the mbox_active will be NULL.
*/
spin_lock_irq(&phba->hbalock);
if (pmbox == NULL) {
lpfc_printf_log(phba, KERN_WARNING,
LOG_MBOX | LOG_SLI,
"0353 Active Mailbox cleared - mailbox timeout "
"exiting\n");
spin_unlock_irq(&phba->hbalock);
return;
}
/* Mbox cmd <mbxCommand> timeout */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0310 Mailbox command x%x timeout Data: x%x x%x x%px\n",
mb->mbxCommand,
phba->pport->port_state,
phba->sli.sli_flag,
phba->sli.mbox_active);
spin_unlock_irq(&phba->hbalock);
/* Setting state unknown so lpfc_sli_abort_iocb_ring
* would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
* it to fail all outstanding SCSI IO.
*/
set_bit(MBX_TMO_ERR, &phba->bit_flags);
spin_lock_irq(&phba->pport->work_port_lock);
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
spin_unlock_irq(&phba->pport->work_port_lock);
spin_lock_irq(&phba->hbalock);
phba->link_state = LPFC_LINK_UNKNOWN;
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0345 Resetting board due to mailbox timeout\n");
/* Reset the HBA device */
lpfc_reset_hba(phba);
}
/**
* lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
* @phba: Pointer to HBA context object.
* @pmbox: Pointer to mailbox object.
* @flag: Flag indicating how the mailbox need to be processed.
*
* This function is called by discovery code and HBA management code
* to submit a mailbox command to firmware with SLI-3 interface spec. This
* function gets the hbalock to protect the data structures.
* The mailbox command can be submitted in polling mode, in which case
* this function will wait in a polling loop for the completion of the
* mailbox.
* If the mailbox is submitted in no_wait mode (not polling) the
* function will submit the command and returns immediately without waiting
* for the mailbox completion. The no_wait is supported only when HBA
* is in SLI2/SLI3 mode - interrupts are enabled.
* The SLI interface allows only one mailbox pending at a time. If the
* mailbox is issued in polling mode and there is already a mailbox
* pending, then the function will return an error. If the mailbox is issued
* in NO_WAIT mode and there is a mailbox pending already, the function
* will return MBX_BUSY after queuing the mailbox into mailbox queue.
* The sli layer owns the mailbox object until the completion of mailbox
* command if this function return MBX_BUSY or MBX_SUCCESS. For all other
* return codes the caller owns the mailbox command after the return of
* the function.
**/
static int
lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
uint32_t flag)
{
MAILBOX_t *mbx;
struct lpfc_sli *psli = &phba->sli;
uint32_t status, evtctr;
uint32_t ha_copy, hc_copy;
int i;
unsigned long timeout;
unsigned long drvr_flag = 0;
uint32_t word0, ldata;
void __iomem *to_slim;
int processing_queue = 0;
spin_lock_irqsave(&phba->hbalock, drvr_flag);
if (!pmbox) {
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
/* processing mbox queue from intr_handler */
if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
return MBX_SUCCESS;
}
processing_queue = 1;
pmbox = lpfc_mbox_get(phba);
if (!pmbox) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
return MBX_SUCCESS;
}
}
if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
if(!pmbox->vport) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
lpfc_printf_log(phba, KERN_ERR,
LOG_MBOX | LOG_VPORT,
"1806 Mbox x%x failed. No vport\n",
pmbox->u.mb.mbxCommand);
dump_stack();
goto out_not_finished;
}
}
/* If the PCI channel is in offline state, do not post mbox. */
if (unlikely(pci_channel_offline(phba->pcidev))) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
goto out_not_finished;
}
/* If HBA has a deferred error attention, fail the iocb. */
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
goto out_not_finished;
}
psli = &phba->sli;
mbx = &pmbox->u.mb;
status = MBX_SUCCESS;
if (phba->link_state == LPFC_HBA_ERROR) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):0311 Mailbox command x%x cannot "
"issue Data: x%x x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0,
pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
goto out_not_finished;
}
if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
!(hc_copy & HC_MBINT_ENA)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):2528 Mailbox command x%x cannot "
"issue Data: x%x x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0,
pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
goto out_not_finished;
}
}
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
/* Polling for a mbox command when another one is already active
* is not allowed in SLI. Also, the driver must have established
* SLI2 mode to queue and process multiple mbox commands.
*/
if (flag & MBX_POLL) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):2529 Mailbox command x%x "
"cannot issue Data: x%x x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0,
pmbox->u.mb.mbxCommand,
psli->sli_flag, flag);
goto out_not_finished;
}
if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):2530 Mailbox command x%x "
"cannot issue Data: x%x x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0,
pmbox->u.mb.mbxCommand,
psli->sli_flag, flag);
goto out_not_finished;
}
/* Another mailbox command is still being processed, queue this
* command to be processed later.
*/
lpfc_mbox_put(phba, pmbox);
/* Mbox cmd issue - BUSY */
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"(%d):0308 Mbox cmd issue - BUSY Data: "
"x%x x%x x%x x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0xffffff,
mbx->mbxCommand,
phba->pport ? phba->pport->port_state : 0xff,
psli->sli_flag, flag);
psli->slistat.mbox_busy++;
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
if (pmbox->vport) {
lpfc_debugfs_disc_trc(pmbox->vport,
LPFC_DISC_TRC_MBOX_VPORT,
"MBOX Bsy vport: cmd:x%x mb:x%x x%x",
(uint32_t)mbx->mbxCommand,
mbx->un.varWords[0], mbx->un.varWords[1]);
}
else {
lpfc_debugfs_disc_trc(phba->pport,
LPFC_DISC_TRC_MBOX,
"MBOX Bsy: cmd:x%x mb:x%x x%x",
(uint32_t)mbx->mbxCommand,
mbx->un.varWords[0], mbx->un.varWords[1]);
}
return MBX_BUSY;
}
psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
/* If we are not polling, we MUST be in SLI2 mode */
if (flag != MBX_POLL) {
if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
(mbx->mbxCommand != MBX_KILL_BOARD)) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Mbox command <mbxCommand> cannot issue */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):2531 Mailbox command x%x "
"cannot issue Data: x%x x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0,
pmbox->u.mb.mbxCommand,
psli->sli_flag, flag);
goto out_not_finished;
}
/* timeout active mbox command */
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
1000);
mod_timer(&psli->mbox_tmo, jiffies + timeout);
}
/* Mailbox cmd <cmd> issue */
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
"x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0,
mbx->mbxCommand,
phba->pport ? phba->pport->port_state : 0xff,
psli->sli_flag, flag);
if (mbx->mbxCommand != MBX_HEARTBEAT) {
if (pmbox->vport) {
lpfc_debugfs_disc_trc(pmbox->vport,
LPFC_DISC_TRC_MBOX_VPORT,
"MBOX Send vport: cmd:x%x mb:x%x x%x",
(uint32_t)mbx->mbxCommand,
mbx->un.varWords[0], mbx->un.varWords[1]);
}
else {
lpfc_debugfs_disc_trc(phba->pport,
LPFC_DISC_TRC_MBOX,
"MBOX Send: cmd:x%x mb:x%x x%x",
(uint32_t)mbx->mbxCommand,
mbx->un.varWords[0], mbx->un.varWords[1]);
}
}
psli->slistat.mbox_cmd++;
evtctr = psli->slistat.mbox_event;
/* next set own bit for the adapter and copy over command word */
mbx->mbxOwner = OWN_CHIP;
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* Populate mbox extension offset word. */
if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
*(((uint32_t *)mbx) + pmbox->mbox_offset_word)
= (uint8_t *)phba->mbox_ext
- (uint8_t *)phba->mbox;
}
/* Copy the mailbox extension data */
if (pmbox->in_ext_byte_len && pmbox->ctx_buf) {
lpfc_sli_pcimem_bcopy(pmbox->ctx_buf,
(uint8_t *)phba->mbox_ext,
pmbox->in_ext_byte_len);
}
/* Copy command data to host SLIM area */
lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
} else {
/* Populate mbox extension offset word. */
if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
*(((uint32_t *)mbx) + pmbox->mbox_offset_word)
= MAILBOX_HBA_EXT_OFFSET;
/* Copy the mailbox extension data */
if (pmbox->in_ext_byte_len && pmbox->ctx_buf)
lpfc_memcpy_to_slim(phba->MBslimaddr +
MAILBOX_HBA_EXT_OFFSET,
pmbox->ctx_buf, pmbox->in_ext_byte_len);
if (mbx->mbxCommand == MBX_CONFIG_PORT)
/* copy command data into host mbox for cmpl */
lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
MAILBOX_CMD_SIZE);
/* First copy mbox command data to HBA SLIM, skip past first
word */
to_slim = phba->MBslimaddr + sizeof (uint32_t);
lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
MAILBOX_CMD_SIZE - sizeof (uint32_t));
/* Next copy over first word, with mbxOwner set */
ldata = *((uint32_t *)mbx);
to_slim = phba->MBslimaddr;
writel(ldata, to_slim);
readl(to_slim); /* flush */
if (mbx->mbxCommand == MBX_CONFIG_PORT)
/* switch over to host mailbox */
psli->sli_flag |= LPFC_SLI_ACTIVE;
}
wmb();
switch (flag) {
case MBX_NOWAIT:
/* Set up reference to mailbox command */
psli->mbox_active = pmbox;
/* Interrupt board to do it */
writel(CA_MBATT, phba->CAregaddr);
readl(phba->CAregaddr); /* flush */
/* Don't wait for it to finish, just return */
break;
case MBX_POLL:
/* Set up null reference to mailbox command */
psli->mbox_active = NULL;
/* Interrupt board to do it */
writel(CA_MBATT, phba->CAregaddr);
readl(phba->CAregaddr); /* flush */
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* First read mbox status word */
word0 = *((uint32_t *)phba->mbox);
word0 = le32_to_cpu(word0);
} else {
/* First read mbox status word */
if (lpfc_readl(phba->MBslimaddr, &word0)) {
spin_unlock_irqrestore(&phba->hbalock,
drvr_flag);
goto out_not_finished;
}
}
/* Read the HBA Host Attention Register */
if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
spin_unlock_irqrestore(&phba->hbalock,
drvr_flag);
goto out_not_finished;
}
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
1000) + jiffies;
i = 0;
/* Wait for command to complete */
while (((word0 & OWN_CHIP) == OWN_CHIP) ||
(!(ha_copy & HA_MBATT) &&
(phba->link_state > LPFC_WARM_START))) {
if (time_after(jiffies, timeout)) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(&phba->hbalock,
drvr_flag);
goto out_not_finished;
}
/* Check if we took a mbox interrupt while we were
polling */
if (((word0 & OWN_CHIP) != OWN_CHIP)
&& (evtctr != psli->slistat.mbox_event))
break;
if (i++ > 10) {
spin_unlock_irqrestore(&phba->hbalock,
drvr_flag);
msleep(1);
spin_lock_irqsave(&phba->hbalock, drvr_flag);
}
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* First copy command data */
word0 = *((uint32_t *)phba->mbox);
word0 = le32_to_cpu(word0);
if (mbx->mbxCommand == MBX_CONFIG_PORT) {
MAILBOX_t *slimmb;
uint32_t slimword0;
/* Check real SLIM for any errors */
slimword0 = readl(phba->MBslimaddr);
slimmb = (MAILBOX_t *) & slimword0;
if (((slimword0 & OWN_CHIP) != OWN_CHIP)
&& slimmb->mbxStatus) {
psli->sli_flag &=
~LPFC_SLI_ACTIVE;
word0 = slimword0;
}
}
} else {
/* First copy command data */
word0 = readl(phba->MBslimaddr);
}
/* Read the HBA Host Attention Register */
if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
spin_unlock_irqrestore(&phba->hbalock,
drvr_flag);
goto out_not_finished;
}
}
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* copy results back to user */
lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
MAILBOX_CMD_SIZE);
/* Copy the mailbox extension data */
if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
lpfc_sli_pcimem_bcopy(phba->mbox_ext,
pmbox->ctx_buf,
pmbox->out_ext_byte_len);
}
} else {
/* First copy command data */
lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
MAILBOX_CMD_SIZE);
/* Copy the mailbox extension data */
if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
lpfc_memcpy_from_slim(
pmbox->ctx_buf,
phba->MBslimaddr +
MAILBOX_HBA_EXT_OFFSET,
pmbox->out_ext_byte_len);
}
}
writel(HA_MBATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
status = mbx->mbxStatus;
}
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
return status;
out_not_finished:
if (processing_queue) {
pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
lpfc_mbox_cmpl_put(phba, pmbox);
}
return MBX_NOT_FINISHED;
}
/**
* lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
* @phba: Pointer to HBA context object.
*
* The function blocks the posting of SLI4 asynchronous mailbox commands from
* the driver internal pending mailbox queue. It will then try to wait out the
* possible outstanding mailbox command before return.
*
* Returns:
* 0 - the outstanding mailbox command completed; otherwise, the wait for
* the outstanding mailbox command timed out.
**/
static int
lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
LPFC_MBOXQ_t *mboxq;
int rc = 0;
unsigned long timeout = 0;
u32 sli_flag;
u8 cmd, subsys, opcode;
/* Mark the asynchronous mailbox command posting as blocked */
spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
/* Determine how long we might wait for the active mailbox
* command to be gracefully completed by firmware.
*/
if (phba->sli.mbox_active)
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
phba->sli.mbox_active) *
1000) + jiffies;
spin_unlock_irq(&phba->hbalock);
/* Make sure the mailbox is really active */
if (timeout)
lpfc_sli4_process_missed_mbox_completions(phba);
/* Wait for the outstanding mailbox command to complete */
while (phba->sli.mbox_active) {
/* Check active mailbox complete status every 2ms */
msleep(2);
if (time_after(jiffies, timeout)) {
/* Timeout, mark the outstanding cmd not complete */
/* Sanity check sli.mbox_active has not completed or
* cancelled from another context during last 2ms sleep,
* so take hbalock to be sure before logging.
*/
spin_lock_irq(&phba->hbalock);
if (phba->sli.mbox_active) {
mboxq = phba->sli.mbox_active;
cmd = mboxq->u.mb.mbxCommand;
subsys = lpfc_sli_config_mbox_subsys_get(phba,
mboxq);
opcode = lpfc_sli_config_mbox_opcode_get(phba,
mboxq);
sli_flag = psli->sli_flag;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2352 Mailbox command x%x "
"(x%x/x%x) sli_flag x%x could "
"not complete\n",
cmd, subsys, opcode,
sli_flag);
} else {
spin_unlock_irq(&phba->hbalock);
}
rc = 1;
break;
}
}
/* Can not cleanly block async mailbox command, fails it */
if (rc) {
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
spin_unlock_irq(&phba->hbalock);
}
return rc;
}
/**
* lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
* @phba: Pointer to HBA context object.
*
* The function unblocks and resume posting of SLI4 asynchronous mailbox
* commands from the driver internal pending mailbox queue. It makes sure
* that there is no outstanding mailbox command before resuming posting
* asynchronous mailbox commands. If, for any reason, there is outstanding
* mailbox command, it will try to wait it out before resuming asynchronous
* mailbox command posting.
**/
static void
lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
spin_lock_irq(&phba->hbalock);
if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
/* Asynchronous mailbox posting is not blocked, do nothing */
spin_unlock_irq(&phba->hbalock);
return;
}
/* Outstanding synchronous mailbox command is guaranteed to be done,
* successful or timeout, after timing-out the outstanding mailbox
* command shall always be removed, so just unblock posting async
* mailbox command and resume
*/
psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
spin_unlock_irq(&phba->hbalock);
/* wake up worker thread to post asynchronous mailbox command */
lpfc_worker_wake_up(phba);
}
/**
* lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
* @phba: Pointer to HBA context object.
* @mboxq: Pointer to mailbox object.
*
* The function waits for the bootstrap mailbox register ready bit from
* port for twice the regular mailbox command timeout value.
*
* 0 - no timeout on waiting for bootstrap mailbox register ready.
* MBXERR_ERROR - wait for bootstrap mailbox register timed out or port
* is in an unrecoverable state.
**/
static int
lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
uint32_t db_ready;
unsigned long timeout;
struct lpfc_register bmbx_reg;
struct lpfc_register portstat_reg = {-1};
/* Sanity check - there is no point to wait if the port is in an
* unrecoverable state.
*/
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
LPFC_SLI_INTF_IF_TYPE_2) {
if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
&portstat_reg.word0) ||
lpfc_sli4_unrecoverable_port(&portstat_reg)) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3858 Skipping bmbx ready because "
"Port Status x%x\n",
portstat_reg.word0);
return MBXERR_ERROR;
}
}
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
* 1000) + jiffies;
do {
bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
if (!db_ready)
mdelay(2);
if (time_after(jiffies, timeout))
return MBXERR_ERROR;
} while (!db_ready);
return 0;
}
/**
* lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
* @phba: Pointer to HBA context object.
* @mboxq: Pointer to mailbox object.
*
* The function posts a mailbox to the port. The mailbox is expected
* to be comletely filled in and ready for the port to operate on it.
* This routine executes a synchronous completion operation on the
* mailbox by polling for its completion.
*
* The caller must not be holding any locks when calling this routine.
*
* Returns:
* MBX_SUCCESS - mailbox posted successfully
* Any of the MBX error values.
**/
static int
lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
int rc = MBX_SUCCESS;
unsigned long iflag;
uint32_t mcqe_status;
uint32_t mbx_cmnd;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_mqe *mb = &mboxq->u.mqe;
struct lpfc_bmbx_create *mbox_rgn;
struct dma_address *dma_address;
/*
* Only one mailbox can be active to the bootstrap mailbox region
* at a time and there is no queueing provided.
*/
spin_lock_irqsave(&phba->hbalock, iflag);
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):2532 Mailbox command x%x (x%x/x%x) "
"cannot issue Data: x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
mboxq->u.mb.mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
psli->sli_flag, MBX_POLL);
return MBXERR_ERROR;
}
/* The server grabs the token and owns it until release */
psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
phba->sli.mbox_active = mboxq;
spin_unlock_irqrestore(&phba->hbalock, iflag);
/* wait for bootstrap mbox register for readyness */
rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
if (rc)
goto exit;
/*
* Initialize the bootstrap memory region to avoid stale data areas
* in the mailbox post. Then copy the caller's mailbox contents to
* the bmbx mailbox region.
*/
mbx_cmnd = bf_get(lpfc_mqe_command, mb);
memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
sizeof(struct lpfc_mqe));
/* Post the high mailbox dma address to the port and wait for ready. */
dma_address = &phba->sli4_hba.bmbx.dma_address;
writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
/* wait for bootstrap mbox register for hi-address write done */
rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
if (rc)
goto exit;
/* Post the low mailbox dma address to the port. */
writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
/* wait for bootstrap mbox register for low address write done */
rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
if (rc)
goto exit;
/*
* Read the CQ to ensure the mailbox has completed.
* If so, update the mailbox status so that the upper layers
* can complete the request normally.
*/
lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
sizeof(struct lpfc_mqe));
mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
sizeof(struct lpfc_mcqe));
mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
/*
* When the CQE status indicates a failure and the mailbox status
* indicates success then copy the CQE status into the mailbox status
* (and prefix it with x4000).
*/
if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
bf_set(lpfc_mqe_status, mb,
(LPFC_MBX_ERROR_RANGE | mcqe_status));
rc = MBXERR_ERROR;
} else
lpfc_sli4_swap_str(phba, mboxq);
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
"Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
" x%x x%x CQ: x%x x%x x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
bf_get(lpfc_mqe_status, mb),
mb->un.mb_words[0], mb->un.mb_words[1],
mb->un.mb_words[2], mb->un.mb_words[3],
mb->un.mb_words[4], mb->un.mb_words[5],
mb->un.mb_words[6], mb->un.mb_words[7],
mb->un.mb_words[8], mb->un.mb_words[9],
mb->un.mb_words[10], mb->un.mb_words[11],
mb->un.mb_words[12], mboxq->mcqe.word0,
mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
mboxq->mcqe.trailer);
exit:
/* We are holding the token, no needed for lock when release */
spin_lock_irqsave(&phba->hbalock, iflag);
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
phba->sli.mbox_active = NULL;
spin_unlock_irqrestore(&phba->hbalock, iflag);
return rc;
}
/**
* lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
* @phba: Pointer to HBA context object.
* @mboxq: Pointer to mailbox object.
* @flag: Flag indicating how the mailbox need to be processed.
*
* This function is called by discovery code and HBA management code to submit
* a mailbox command to firmware with SLI-4 interface spec.
*
* Return codes the caller owns the mailbox command after the return of the
* function.
**/
static int
lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
uint32_t flag)
{
struct lpfc_sli *psli = &phba->sli;
unsigned long iflags;
int rc;
/* dump from issue mailbox command if setup */
lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
rc = lpfc_mbox_dev_check(phba);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):2544 Mailbox command x%x (x%x/x%x) "
"cannot issue Data: x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
mboxq->u.mb.mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
psli->sli_flag, flag);
goto out_not_finished;
}
/* Detect polling mode and jump to a handler */
if (!phba->sli4_hba.intr_enable) {
if (flag == MBX_POLL)
rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
else
rc = -EIO;
if (rc != MBX_SUCCESS)
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
"(%d):2541 Mailbox command x%x "
"(x%x/x%x) failure: "
"mqe_sta: x%x mcqe_sta: x%x/x%x "
"Data: x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
mboxq->u.mb.mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba,
mboxq),
lpfc_sli_config_mbox_opcode_get(phba,
mboxq),
bf_get(lpfc_mqe_status, &mboxq->u.mqe),
bf_get(lpfc_mcqe_status, &mboxq->mcqe),
bf_get(lpfc_mcqe_ext_status,
&mboxq->mcqe),
psli->sli_flag, flag);
return rc;
} else if (flag == MBX_POLL) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
"(%d):2542 Try to issue mailbox command "
"x%x (x%x/x%x) synchronously ahead of async "
"mailbox command queue: x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
mboxq->u.mb.mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
psli->sli_flag, flag);
/* Try to block the asynchronous mailbox posting */
rc = lpfc_sli4_async_mbox_block(phba);
if (!rc) {
/* Successfully blocked, now issue sync mbox cmd */
rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
if (rc != MBX_SUCCESS)
lpfc_printf_log(phba, KERN_WARNING,
LOG_MBOX | LOG_SLI,
"(%d):2597 Sync Mailbox command "
"x%x (x%x/x%x) failure: "
"mqe_sta: x%x mcqe_sta: x%x/x%x "
"Data: x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
mboxq->u.mb.mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba,
mboxq),
lpfc_sli_config_mbox_opcode_get(phba,
mboxq),
bf_get(lpfc_mqe_status, &mboxq->u.mqe),
bf_get(lpfc_mcqe_status, &mboxq->mcqe),
bf_get(lpfc_mcqe_ext_status,
&mboxq->mcqe),
psli->sli_flag, flag);
/* Unblock the async mailbox posting afterward */
lpfc_sli4_async_mbox_unblock(phba);
}
return rc;
}
/* Now, interrupt mode asynchronous mailbox command */
rc = lpfc_mbox_cmd_check(phba, mboxq);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):2543 Mailbox command x%x (x%x/x%x) "
"cannot issue Data: x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
mboxq->u.mb.mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
psli->sli_flag, flag);
goto out_not_finished;
}
/* Put the mailbox command to the driver internal FIFO */
psli->slistat.mbox_busy++;
spin_lock_irqsave(&phba->hbalock, iflags);
lpfc_mbox_put(phba, mboxq);
spin_unlock_irqrestore(&phba->hbalock, iflags);
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"(%d):0354 Mbox cmd issue - Enqueue Data: "
"x%x (x%x/x%x) x%x x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0xffffff,
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
phba->pport->port_state,
psli->sli_flag, MBX_NOWAIT);
/* Wake up worker thread to transport mailbox command from head */
lpfc_worker_wake_up(phba);
return MBX_BUSY;
out_not_finished:
return MBX_NOT_FINISHED;
}
/**
* lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
* @phba: Pointer to HBA context object.
*
* This function is called by worker thread to send a mailbox command to
* SLI4 HBA firmware.
*
**/
int
lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
LPFC_MBOXQ_t *mboxq;
int rc = MBX_SUCCESS;
unsigned long iflags;
struct lpfc_mqe *mqe;
uint32_t mbx_cmnd;
/* Check interrupt mode before post async mailbox command */
if (unlikely(!phba->sli4_hba.intr_enable))
return MBX_NOT_FINISHED;
/* Check for mailbox command service token */
spin_lock_irqsave(&phba->hbalock, iflags);
if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
return MBX_NOT_FINISHED;
}
if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
return MBX_NOT_FINISHED;
}
if (unlikely(phba->sli.mbox_active)) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0384 There is pending active mailbox cmd\n");
return MBX_NOT_FINISHED;
}
/* Take the mailbox command service token */
psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
/* Get the next mailbox command from head of queue */
mboxq = lpfc_mbox_get(phba);
/* If no more mailbox command waiting for post, we're done */
if (!mboxq) {
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irqrestore(&phba->hbalock, iflags);
return MBX_SUCCESS;
}
phba->sli.mbox_active = mboxq;
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Check device readiness for posting mailbox command */
rc = lpfc_mbox_dev_check(phba);
if (unlikely(rc))
/* Driver clean routine will clean up pending mailbox */
goto out_not_finished;
/* Prepare the mbox command to be posted */
mqe = &mboxq->u.mqe;
mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
/* Start timer for the mbox_tmo and log some mailbox post messages */
mod_timer(&psli->mbox_tmo, (jiffies +
msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
"x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
phba->pport->port_state, psli->sli_flag);
if (mbx_cmnd != MBX_HEARTBEAT) {
if (mboxq->vport) {
lpfc_debugfs_disc_trc(mboxq->vport,
LPFC_DISC_TRC_MBOX_VPORT,
"MBOX Send vport: cmd:x%x mb:x%x x%x",
mbx_cmnd, mqe->un.mb_words[0],
mqe->un.mb_words[1]);
} else {
lpfc_debugfs_disc_trc(phba->pport,
LPFC_DISC_TRC_MBOX,
"MBOX Send: cmd:x%x mb:x%x x%x",
mbx_cmnd, mqe->un.mb_words[0],
mqe->un.mb_words[1]);
}
}
psli->slistat.mbox_cmd++;
/* Post the mailbox command to the port */
rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):2533 Mailbox command x%x (x%x/x%x) "
"cannot issue Data: x%x x%x\n",
mboxq->vport ? mboxq->vport->vpi : 0,
mboxq->u.mb.mbxCommand,
lpfc_sli_config_mbox_subsys_get(phba, mboxq),
lpfc_sli_config_mbox_opcode_get(phba, mboxq),
psli->sli_flag, MBX_NOWAIT);
goto out_not_finished;
}
return rc;
out_not_finished:
spin_lock_irqsave(&phba->hbalock, iflags);
if (phba->sli.mbox_active) {
mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
__lpfc_mbox_cmpl_put(phba, mboxq);
/* Release the token */
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
phba->sli.mbox_active = NULL;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
return MBX_NOT_FINISHED;
}
/**
* lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
* @phba: Pointer to HBA context object.
* @pmbox: Pointer to mailbox object.
* @flag: Flag indicating how the mailbox need to be processed.
*
* This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
* the API jump table function pointer from the lpfc_hba struct.
*
* Return codes the caller owns the mailbox command after the return of the
* function.
**/
int
lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
{
return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
}
/**
* lpfc_mbox_api_table_setup - Set up mbox api function jump table
* @phba: The hba struct for which this call is being executed.
* @dev_grp: The HBA PCI-Device group number.
*
* This routine sets up the mbox interface API function jump table in @phba
* struct.
* Returns: 0 - success, -ENODEV - failure.
**/
int
lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
{
switch (dev_grp) {
case LPFC_PCI_DEV_LP:
phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
phba->lpfc_sli_handle_slow_ring_event =
lpfc_sli_handle_slow_ring_event_s3;
phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
break;
case LPFC_PCI_DEV_OC:
phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
phba->lpfc_sli_handle_slow_ring_event =
lpfc_sli_handle_slow_ring_event_s4;
phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1420 Invalid HBA PCI-device group: 0x%x\n",
dev_grp);
return -ENODEV;
}
return 0;
}
/**
* __lpfc_sli_ringtx_put - Add an iocb to the txq
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @piocb: Pointer to address of newly added command iocb.
*
* This function is called with hbalock held for SLI3 ports or
* the ring lock held for SLI4 ports to add a command
* iocb to the txq when SLI layer cannot submit the command iocb
* to the ring.
**/
void
__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *piocb)
{
if (phba->sli_rev == LPFC_SLI_REV4)
lockdep_assert_held(&pring->ring_lock);
else
lockdep_assert_held(&phba->hbalock);
/* Insert the caller's iocb in the txq tail for later processing. */
list_add_tail(&piocb->list, &pring->txq);
}
/**
* lpfc_sli_next_iocb - Get the next iocb in the txq
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @piocb: Pointer to address of newly added command iocb.
*
* This function is called with hbalock held before a new
* iocb is submitted to the firmware. This function checks
* txq to flush the iocbs in txq to Firmware before
* submitting new iocbs to the Firmware.
* If there are iocbs in the txq which need to be submitted
* to firmware, lpfc_sli_next_iocb returns the first element
* of the txq after dequeuing it from txq.
* If there is no iocb in the txq then the function will return
* *piocb and *piocb is set to NULL. Caller needs to check
* *piocb to find if there are more commands in the txq.
**/
static struct lpfc_iocbq *
lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq **piocb)
{
struct lpfc_iocbq * nextiocb;
lockdep_assert_held(&phba->hbalock);
nextiocb = lpfc_sli_ringtx_get(phba, pring);
if (!nextiocb) {
nextiocb = *piocb;
*piocb = NULL;
}
return nextiocb;
}
/**
* __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
* @phba: Pointer to HBA context object.
* @ring_number: SLI ring number to issue iocb on.
* @piocb: Pointer to command iocb.
* @flag: Flag indicating if this command can be put into txq.
*
* __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
* an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
* recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
* flag is turned on, the function returns IOCB_ERROR. When the link is down,
* this function allows only iocbs for posting buffers. This function finds
* next available slot in the command ring and posts the command to the
* available slot and writes the port attention register to request HBA start
* processing new iocb. If there is no slot available in the ring and
* flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
* the function returns IOCB_BUSY.
*
* This function is called with hbalock held. The function will return success
* after it successfully submit the iocb to firmware or after adding to the
* txq.
**/
static int
__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb, uint32_t flag)
{
struct lpfc_iocbq *nextiocb;
IOCB_t *iocb;
struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
lockdep_assert_held(&phba->hbalock);
if (piocb->cmd_cmpl && (!piocb->vport) &&
(piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
(piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1807 IOCB x%x failed. No vport\n",
piocb->iocb.ulpCommand);
dump_stack();
return IOCB_ERROR;
}
/* If the PCI channel is in offline state, do not post iocbs. */
if (unlikely(pci_channel_offline(phba->pcidev)))
return IOCB_ERROR;
/* If HBA has a deferred error attention, fail the iocb. */
if (unlikely(phba->hba_flag & DEFER_ERATT))
return IOCB_ERROR;
/*
* We should never get an IOCB if we are in a < LINK_DOWN state
*/
if (unlikely(phba->link_state < LPFC_LINK_DOWN))
return IOCB_ERROR;
/*
* Check to see if we are blocking IOCB processing because of a
* outstanding event.
*/
if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
goto iocb_busy;
if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
/*
* Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
* can be issued if the link is not up.
*/
switch (piocb->iocb.ulpCommand) {
case CMD_QUE_RING_BUF_CN:
case CMD_QUE_RING_BUF64_CN:
/*
* For IOCBs, like QUE_RING_BUF, that have no rsp ring
* completion, cmd_cmpl MUST be 0.
*/
if (piocb->cmd_cmpl)
piocb->cmd_cmpl = NULL;
fallthrough;
case CMD_CREATE_XRI_CR:
case CMD_CLOSE_XRI_CN:
case CMD_CLOSE_XRI_CX:
break;
default:
goto iocb_busy;
}
/*
* For FCP commands, we must be in a state where we can process link
* attention events.
*/
} else if (unlikely(pring->ringno == LPFC_FCP_RING &&
!(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
goto iocb_busy;
}
while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
(nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
if (iocb)
lpfc_sli_update_ring(phba, pring);
else
lpfc_sli_update_full_ring(phba, pring);
if (!piocb)
return IOCB_SUCCESS;
goto out_busy;
iocb_busy:
pring->stats.iocb_cmd_delay++;
out_busy:
if (!(flag & SLI_IOCB_RET_IOCB)) {
__lpfc_sli_ringtx_put(phba, pring, piocb);
return IOCB_SUCCESS;
}
return IOCB_BUSY;
}
/**
* __lpfc_sli_issue_fcp_io_s3 - SLI3 device for sending fcp io iocb
* @phba: Pointer to HBA context object.
* @ring_number: SLI ring number to issue wqe on.
* @piocb: Pointer to command iocb.
* @flag: Flag indicating if this command can be put into txq.
*
* __lpfc_sli_issue_fcp_io_s3 is wrapper function to invoke lockless func to
* send an iocb command to an HBA with SLI-3 interface spec.
*
* This function takes the hbalock before invoking the lockless version.
* The function will return success after it successfully submit the wqe to
* firmware or after adding to the txq.
**/
static int
__lpfc_sli_issue_fcp_io_s3(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb, uint32_t flag)
{
unsigned long iflags;
int rc;
spin_lock_irqsave(&phba->hbalock, iflags);
rc = __lpfc_sli_issue_iocb_s3(phba, ring_number, piocb, flag);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return rc;
}
/**
* __lpfc_sli_issue_fcp_io_s4 - SLI4 device for sending fcp io wqe
* @phba: Pointer to HBA context object.
* @ring_number: SLI ring number to issue wqe on.
* @piocb: Pointer to command iocb.
* @flag: Flag indicating if this command can be put into txq.
*
* __lpfc_sli_issue_fcp_io_s4 is used by other functions in the driver to issue
* an wqe command to an HBA with SLI-4 interface spec.
*
* This function is a lockless version. The function will return success
* after it successfully submit the wqe to firmware or after adding to the
* txq.
**/
static int
__lpfc_sli_issue_fcp_io_s4(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb, uint32_t flag)
{
struct lpfc_io_buf *lpfc_cmd = piocb->io_buf;
lpfc_prep_embed_io(phba, lpfc_cmd);
return lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, piocb);
}
void
lpfc_prep_embed_io(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
{
struct lpfc_iocbq *piocb = &lpfc_cmd->cur_iocbq;
union lpfc_wqe128 *wqe = &lpfc_cmd->cur_iocbq.wqe;
struct sli4_sge *sgl;
/* 128 byte wqe support here */
sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
if (phba->fcp_embed_io) {
struct fcp_cmnd *fcp_cmnd;
u32 *ptr;
fcp_cmnd = lpfc_cmd->fcp_cmnd;
/* Word 0-2 - FCP_CMND */
wqe->generic.bde.tus.f.bdeFlags =
BUFF_TYPE_BDE_IMMED;
wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
wqe->generic.bde.addrHigh = 0;
wqe->generic.bde.addrLow = 88; /* Word 22 */
bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
/* Word 22-29 FCP CMND Payload */
ptr = &wqe->words[22];
memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
} else {
/* Word 0-2 - Inline BDE */
wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
wqe->generic.bde.tus.f.bdeSize = sizeof(struct fcp_cmnd);
wqe->generic.bde.addrHigh = sgl->addr_hi;
wqe->generic.bde.addrLow = sgl->addr_lo;
/* Word 10 */
bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
bf_set(wqe_wqes, &wqe->generic.wqe_com, 0);
}
/* add the VMID tags as per switch response */
if (unlikely(piocb->cmd_flag & LPFC_IO_VMID)) {
if (phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO) {
bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
(piocb->vmid_tag.cs_ctl_vmid));
} else if (phba->cfg_vmid_app_header) {
bf_set(wqe_appid, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
wqe->words[31] = piocb->vmid_tag.app_id;
}
}
}
/**
* __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
* @phba: Pointer to HBA context object.
* @ring_number: SLI ring number to issue iocb on.
* @piocb: Pointer to command iocb.
* @flag: Flag indicating if this command can be put into txq.
*
* __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
* an iocb command to an HBA with SLI-4 interface spec.
*
* This function is called with ringlock held. The function will return success
* after it successfully submit the iocb to firmware or after adding to the
* txq.
**/
static int
__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb, uint32_t flag)
{
struct lpfc_sglq *sglq;
union lpfc_wqe128 *wqe;
struct lpfc_queue *wq;
struct lpfc_sli_ring *pring;
u32 ulp_command = get_job_cmnd(phba, piocb);
/* Get the WQ */
if ((piocb->cmd_flag & LPFC_IO_FCP) ||
(piocb->cmd_flag & LPFC_USE_FCPWQIDX)) {
wq = phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq;
} else {
wq = phba->sli4_hba.els_wq;
}
/* Get corresponding ring */
pring = wq->pring;
/*
* The WQE can be either 64 or 128 bytes,
*/
lockdep_assert_held(&pring->ring_lock);
wqe = &piocb->wqe;
if (piocb->sli4_xritag == NO_XRI) {
if (ulp_command == CMD_ABORT_XRI_CX)
sglq = NULL;
else {
sglq = __lpfc_sli_get_els_sglq(phba, piocb);
if (!sglq) {
if (!(flag & SLI_IOCB_RET_IOCB)) {
__lpfc_sli_ringtx_put(phba,
pring,
piocb);
return IOCB_SUCCESS;
} else {
return IOCB_BUSY;
}
}
}
} else if (piocb->cmd_flag & LPFC_IO_FCP) {
/* These IO's already have an XRI and a mapped sgl. */
sglq = NULL;
}
else {
/*
* This is a continuation of a commandi,(CX) so this
* sglq is on the active list
*/
sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
if (!sglq)
return IOCB_ERROR;
}
if (sglq) {
piocb->sli4_lxritag = sglq->sli4_lxritag;
piocb->sli4_xritag = sglq->sli4_xritag;
/* ABTS sent by initiator to CT exchange, the
* RX_ID field will be filled with the newly
* allocated responder XRI.
*/
if (ulp_command == CMD_XMIT_BLS_RSP64_CX &&
piocb->abort_bls == LPFC_ABTS_UNSOL_INT)
bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
piocb->sli4_xritag);
bf_set(wqe_xri_tag, &wqe->generic.wqe_com,
piocb->sli4_xritag);
if (lpfc_wqe_bpl2sgl(phba, piocb, sglq) == NO_XRI)
return IOCB_ERROR;
}
if (lpfc_sli4_wq_put(wq, wqe))
return IOCB_ERROR;
lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
return 0;
}
/*
* lpfc_sli_issue_fcp_io - Wrapper func for issuing fcp i/o
*
* This routine wraps the actual fcp i/o function for issusing WQE for sli-4
* or IOCB for sli-3 function.
* pointer from the lpfc_hba struct.
*
* Return codes:
* IOCB_ERROR - Error
* IOCB_SUCCESS - Success
* IOCB_BUSY - Busy
**/
int
lpfc_sli_issue_fcp_io(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb, uint32_t flag)
{
return phba->__lpfc_sli_issue_fcp_io(phba, ring_number, piocb, flag);
}
/*
* __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
*
* This routine wraps the actual lockless version for issusing IOCB function
* pointer from the lpfc_hba struct.
*
* Return codes:
* IOCB_ERROR - Error
* IOCB_SUCCESS - Success
* IOCB_BUSY - Busy
**/
int
__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb, uint32_t flag)
{
return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
}
static void
__lpfc_sli_prep_els_req_rsp_s3(struct lpfc_iocbq *cmdiocbq,
struct lpfc_vport *vport,
struct lpfc_dmabuf *bmp, u16 cmd_size, u32 did,
u32 elscmd, u8 tmo, u8 expect_rsp)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *cmd;
cmd = &cmdiocbq->iocb;
memset(cmd, 0, sizeof(*cmd));
cmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
cmd->un.elsreq64.bdl.addrLow = putPaddrLow(bmp->phys);
cmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
if (expect_rsp) {
cmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
cmd->un.elsreq64.remoteID = did; /* DID */
cmd->ulpCommand = CMD_ELS_REQUEST64_CR;
cmd->ulpTimeout = tmo;
} else {
cmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64);
cmd->un.genreq64.xmit_els_remoteID = did; /* DID */
cmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
cmd->ulpPU = PARM_NPIV_DID;
}
cmd->ulpBdeCount = 1;
cmd->ulpLe = 1;
cmd->ulpClass = CLASS3;
/* If we have NPIV enabled, we want to send ELS traffic by VPI. */
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
if (expect_rsp) {
cmd->un.elsreq64.myID = vport->fc_myDID;
/* For ELS_REQUEST64_CR, use the VPI by default */
cmd->ulpContext = phba->vpi_ids[vport->vpi];
}
cmd->ulpCt_h = 0;
/* The CT field must be 0=INVALID_RPI for the ECHO cmd */
if (elscmd == ELS_CMD_ECHO)
cmd->ulpCt_l = 0; /* context = invalid RPI */
else
cmd->ulpCt_l = 1; /* context = VPI */
}
}
static void
__lpfc_sli_prep_els_req_rsp_s4(struct lpfc_iocbq *cmdiocbq,
struct lpfc_vport *vport,
struct lpfc_dmabuf *bmp, u16 cmd_size, u32 did,
u32 elscmd, u8 tmo, u8 expect_rsp)
{
struct lpfc_hba *phba = vport->phba;
union lpfc_wqe128 *wqe;
struct ulp_bde64_le *bde;
u8 els_id;
wqe = &cmdiocbq->wqe;
memset(wqe, 0, sizeof(*wqe));
/* Word 0 - 2 BDE */
bde = (struct ulp_bde64_le *)&wqe->generic.bde;
bde->addr_low = cpu_to_le32(putPaddrLow(bmp->phys));
bde->addr_high = cpu_to_le32(putPaddrHigh(bmp->phys));
bde->type_size = cpu_to_le32(cmd_size);
bde->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64);
if (expect_rsp) {
bf_set(wqe_cmnd, &wqe->els_req.wqe_com, CMD_ELS_REQUEST64_WQE);
/* Transfer length */
wqe->els_req.payload_len = cmd_size;
wqe->els_req.max_response_payload_len = FCELSSIZE;
/* DID */
bf_set(wqe_els_did, &wqe->els_req.wqe_dest, did);
/* Word 11 - ELS_ID */
switch (elscmd) {
case ELS_CMD_PLOGI:
els_id = LPFC_ELS_ID_PLOGI;
break;
case ELS_CMD_FLOGI:
els_id = LPFC_ELS_ID_FLOGI;
break;
case ELS_CMD_LOGO:
els_id = LPFC_ELS_ID_LOGO;
break;
case ELS_CMD_FDISC:
if (!vport->fc_myDID) {
els_id = LPFC_ELS_ID_FDISC;
break;
}
fallthrough;
default:
els_id = LPFC_ELS_ID_DEFAULT;
break;
}
bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
} else {
/* DID */
bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest, did);
/* Transfer length */
wqe->xmit_els_rsp.response_payload_len = cmd_size;
bf_set(wqe_cmnd, &wqe->xmit_els_rsp.wqe_com,
CMD_XMIT_ELS_RSP64_WQE);
}
bf_set(wqe_tmo, &wqe->generic.wqe_com, tmo);
bf_set(wqe_reqtag, &wqe->generic.wqe_com, cmdiocbq->iotag);
bf_set(wqe_class, &wqe->generic.wqe_com, CLASS3);
/* If we have NPIV enabled, we want to send ELS traffic by VPI.
* For SLI4, since the driver controls VPIs we also want to include
* all ELS pt2pt protocol traffic as well.
*/
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) ||
(vport->fc_flag & FC_PT2PT)) {
if (expect_rsp) {
bf_set(els_req64_sid, &wqe->els_req, vport->fc_myDID);
/* For ELS_REQUEST64_WQE, use the VPI by default */
bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
phba->vpi_ids[vport->vpi]);
}
/* The CT field must be 0=INVALID_RPI for the ECHO cmd */
if (elscmd == ELS_CMD_ECHO)
bf_set(wqe_ct, &wqe->generic.wqe_com, 0);
else
bf_set(wqe_ct, &wqe->generic.wqe_com, 1);
}
}
void
lpfc_sli_prep_els_req_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
u16 cmd_size, u32 did, u32 elscmd, u8 tmo,
u8 expect_rsp)
{
phba->__lpfc_sli_prep_els_req_rsp(cmdiocbq, vport, bmp, cmd_size, did,
elscmd, tmo, expect_rsp);
}
static void
__lpfc_sli_prep_gen_req_s3(struct lpfc_iocbq *cmdiocbq, struct lpfc_dmabuf *bmp,
u16 rpi, u32 num_entry, u8 tmo)
{
IOCB_t *cmd;
cmd = &cmdiocbq->iocb;
memset(cmd, 0, sizeof(*cmd));
cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
cmd->un.genreq64.bdl.bdeSize = num_entry * sizeof(struct ulp_bde64);
cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL;
cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT;
cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA);
cmd->ulpContext = rpi;
cmd->ulpClass = CLASS3;
cmd->ulpCommand = CMD_GEN_REQUEST64_CR;
cmd->ulpBdeCount = 1;
cmd->ulpLe = 1;
cmd->ulpOwner = OWN_CHIP;
cmd->ulpTimeout = tmo;
}
static void
__lpfc_sli_prep_gen_req_s4(struct lpfc_iocbq *cmdiocbq, struct lpfc_dmabuf *bmp,
u16 rpi, u32 num_entry, u8 tmo)
{
union lpfc_wqe128 *cmdwqe;
struct ulp_bde64_le *bde, *bpl;
u32 xmit_len = 0, total_len = 0, size, type, i;
cmdwqe = &cmdiocbq->wqe;
memset(cmdwqe, 0, sizeof(*cmdwqe));
/* Calculate total_len and xmit_len */
bpl = (struct ulp_bde64_le *)bmp->virt;
for (i = 0; i < num_entry; i++) {
size = le32_to_cpu(bpl[i].type_size) & ULP_BDE64_SIZE_MASK;
total_len += size;
}
for (i = 0; i < num_entry; i++) {
size = le32_to_cpu(bpl[i].type_size) & ULP_BDE64_SIZE_MASK;
type = le32_to_cpu(bpl[i].type_size) & ULP_BDE64_TYPE_MASK;
if (type != ULP_BDE64_TYPE_BDE_64)
break;
xmit_len += size;
}
/* Words 0 - 2 */
bde = (struct ulp_bde64_le *)&cmdwqe->generic.bde;
bde->addr_low = bpl->addr_low;
bde->addr_high = bpl->addr_high;
bde->type_size = cpu_to_le32(xmit_len);
bde->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64);
/* Word 3 */
cmdwqe->gen_req.request_payload_len = xmit_len;
/* Word 5 */
bf_set(wqe_type, &cmdwqe->gen_req.wge_ctl, FC_TYPE_CT);
bf_set(wqe_rctl, &cmdwqe->gen_req.wge_ctl, FC_RCTL_DD_UNSOL_CTL);
bf_set(wqe_si, &cmdwqe->gen_req.wge_ctl, 1);
bf_set(wqe_la, &cmdwqe->gen_req.wge_ctl, 1);
/* Word 6 */
bf_set(wqe_ctxt_tag, &cmdwqe->gen_req.wqe_com, rpi);
/* Word 7 */
bf_set(wqe_tmo, &cmdwqe->gen_req.wqe_com, tmo);
bf_set(wqe_class, &cmdwqe->gen_req.wqe_com, CLASS3);
bf_set(wqe_cmnd, &cmdwqe->gen_req.wqe_com, CMD_GEN_REQUEST64_CR);
bf_set(wqe_ct, &cmdwqe->gen_req.wqe_com, SLI4_CT_RPI);
/* Word 12 */
cmdwqe->gen_req.max_response_payload_len = total_len - xmit_len;
}
void
lpfc_sli_prep_gen_req(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
struct lpfc_dmabuf *bmp, u16 rpi, u32 num_entry, u8 tmo)
{
phba->__lpfc_sli_prep_gen_req(cmdiocbq, bmp, rpi, num_entry, tmo);
}
static void
__lpfc_sli_prep_xmit_seq64_s3(struct lpfc_iocbq *cmdiocbq,
struct lpfc_dmabuf *bmp, u16 rpi, u16 ox_id,
u32 num_entry, u8 rctl, u8 last_seq, u8 cr_cx_cmd)
{
IOCB_t *icmd;
icmd = &cmdiocbq->iocb;
memset(icmd, 0, sizeof(*icmd));
icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys);
icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
icmd->un.xseq64.w5.hcsw.Fctl = LA;
if (last_seq)
icmd->un.xseq64.w5.hcsw.Fctl |= LS;
icmd->un.xseq64.w5.hcsw.Dfctl = 0;
icmd->un.xseq64.w5.hcsw.Rctl = rctl;
icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT;
icmd->ulpBdeCount = 1;
icmd->ulpLe = 1;
icmd->ulpClass = CLASS3;
switch (cr_cx_cmd) {
case CMD_XMIT_SEQUENCE64_CR:
icmd->ulpContext = rpi;
icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR;
break;
case CMD_XMIT_SEQUENCE64_CX:
icmd->ulpContext = ox_id;
icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX;
break;
default:
break;
}
}
static void
__lpfc_sli_prep_xmit_seq64_s4(struct lpfc_iocbq *cmdiocbq,
struct lpfc_dmabuf *bmp, u16 rpi, u16 ox_id,
u32 full_size, u8 rctl, u8 last_seq, u8 cr_cx_cmd)
{
union lpfc_wqe128 *wqe;
struct ulp_bde64 *bpl;
wqe = &cmdiocbq->wqe;
memset(wqe, 0, sizeof(*wqe));
/* Words 0 - 2 */
bpl = (struct ulp_bde64 *)bmp->virt;
wqe->xmit_sequence.bde.addrHigh = bpl->addrHigh;
wqe->xmit_sequence.bde.addrLow = bpl->addrLow;
wqe->xmit_sequence.bde.tus.w = bpl->tus.w;
/* Word 5 */
bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, last_seq);
bf_set(wqe_la, &wqe->xmit_sequence.wge_ctl, 1);
bf_set(wqe_dfctl, &wqe->xmit_sequence.wge_ctl, 0);
bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, rctl);
bf_set(wqe_type, &wqe->xmit_sequence.wge_ctl, FC_TYPE_CT);
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com, rpi);
bf_set(wqe_cmnd, &wqe->xmit_sequence.wqe_com,
CMD_XMIT_SEQUENCE64_WQE);
/* Word 7 */
bf_set(wqe_class, &wqe->xmit_sequence.wqe_com, CLASS3);
/* Word 9 */
bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com, ox_id);
/* Word 12 */
if (cmdiocbq->cmd_flag & (LPFC_IO_LIBDFC | LPFC_IO_LOOPBACK))
wqe->xmit_sequence.xmit_len = full_size;
else
wqe->xmit_sequence.xmit_len =
wqe->xmit_sequence.bde.tus.f.bdeSize;
}
void
lpfc_sli_prep_xmit_seq64(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
struct lpfc_dmabuf *bmp, u16 rpi, u16 ox_id,
u32 num_entry, u8 rctl, u8 last_seq, u8 cr_cx_cmd)
{
phba->__lpfc_sli_prep_xmit_seq64(cmdiocbq, bmp, rpi, ox_id, num_entry,
rctl, last_seq, cr_cx_cmd);
}
static void
__lpfc_sli_prep_abort_xri_s3(struct lpfc_iocbq *cmdiocbq, u16 ulp_context,
u16 iotag, u8 ulp_class, u16 cqid, bool ia,
bool wqec)
{
IOCB_t *icmd = NULL;
icmd = &cmdiocbq->iocb;
memset(icmd, 0, sizeof(*icmd));
/* Word 5 */
icmd->un.acxri.abortContextTag = ulp_context;
icmd->un.acxri.abortIoTag = iotag;
if (ia) {
/* Word 7 */
icmd->ulpCommand = CMD_CLOSE_XRI_CN;
} else {
/* Word 3 */
icmd->un.acxri.abortType = ABORT_TYPE_ABTS;
/* Word 7 */
icmd->ulpClass = ulp_class;
icmd->ulpCommand = CMD_ABORT_XRI_CN;
}
/* Word 7 */
icmd->ulpLe = 1;
}
static void
__lpfc_sli_prep_abort_xri_s4(struct lpfc_iocbq *cmdiocbq, u16 ulp_context,
u16 iotag, u8 ulp_class, u16 cqid, bool ia,
bool wqec)
{
union lpfc_wqe128 *wqe;
wqe = &cmdiocbq->wqe;
memset(wqe, 0, sizeof(*wqe));
/* Word 3 */
bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
if (ia)
bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
else
bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
/* Word 7 */
bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_WQE);
/* Word 8 */
wqe->abort_cmd.wqe_com.abort_tag = ulp_context;
/* Word 9 */
bf_set(wqe_reqtag, &wqe->abort_cmd.wqe_com, iotag);
/* Word 10 */
bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
/* Word 11 */
if (wqec)
bf_set(wqe_wqec, &wqe->abort_cmd.wqe_com, 1);
bf_set(wqe_cqid, &wqe->abort_cmd.wqe_com, cqid);
bf_set(wqe_cmd_type, &wqe->abort_cmd.wqe_com, OTHER_COMMAND);
}
void
lpfc_sli_prep_abort_xri(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
u16 ulp_context, u16 iotag, u8 ulp_class, u16 cqid,
bool ia, bool wqec)
{
phba->__lpfc_sli_prep_abort_xri(cmdiocbq, ulp_context, iotag, ulp_class,
cqid, ia, wqec);
}
/**
* lpfc_sli_api_table_setup - Set up sli api function jump table
* @phba: The hba struct for which this call is being executed.
* @dev_grp: The HBA PCI-Device group number.
*
* This routine sets up the SLI interface API function jump table in @phba
* struct.
* Returns: 0 - success, -ENODEV - failure.
**/
int
lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
{
switch (dev_grp) {
case LPFC_PCI_DEV_LP:
phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
phba->__lpfc_sli_issue_fcp_io = __lpfc_sli_issue_fcp_io_s3;
phba->__lpfc_sli_prep_els_req_rsp = __lpfc_sli_prep_els_req_rsp_s3;
phba->__lpfc_sli_prep_gen_req = __lpfc_sli_prep_gen_req_s3;
phba->__lpfc_sli_prep_xmit_seq64 = __lpfc_sli_prep_xmit_seq64_s3;
phba->__lpfc_sli_prep_abort_xri = __lpfc_sli_prep_abort_xri_s3;
break;
case LPFC_PCI_DEV_OC:
phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
phba->__lpfc_sli_issue_fcp_io = __lpfc_sli_issue_fcp_io_s4;
phba->__lpfc_sli_prep_els_req_rsp = __lpfc_sli_prep_els_req_rsp_s4;
phba->__lpfc_sli_prep_gen_req = __lpfc_sli_prep_gen_req_s4;
phba->__lpfc_sli_prep_xmit_seq64 = __lpfc_sli_prep_xmit_seq64_s4;
phba->__lpfc_sli_prep_abort_xri = __lpfc_sli_prep_abort_xri_s4;
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1419 Invalid HBA PCI-device group: 0x%x\n",
dev_grp);
return -ENODEV;
}
return 0;
}
/**
* lpfc_sli4_calc_ring - Calculates which ring to use
* @phba: Pointer to HBA context object.
* @piocb: Pointer to command iocb.
*
* For SLI4 only, FCP IO can deferred to one fo many WQs, based on
* hba_wqidx, thus we need to calculate the corresponding ring.
* Since ABORTS must go on the same WQ of the command they are
* aborting, we use command's hba_wqidx.
*/
struct lpfc_sli_ring *
lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
{
struct lpfc_io_buf *lpfc_cmd;
if (piocb->cmd_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
if (unlikely(!phba->sli4_hba.hdwq))
return NULL;
/*
* for abort iocb hba_wqidx should already
* be setup based on what work queue we used.
*/
if (!(piocb->cmd_flag & LPFC_USE_FCPWQIDX)) {
lpfc_cmd = piocb->io_buf;
piocb->hba_wqidx = lpfc_cmd->hdwq_no;
}
return phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq->pring;
} else {
if (unlikely(!phba->sli4_hba.els_wq))
return NULL;
piocb->hba_wqidx = 0;
return phba->sli4_hba.els_wq->pring;
}
}
inline void lpfc_sli4_poll_eq(struct lpfc_queue *eq)
{
struct lpfc_hba *phba = eq->phba;
/*
* Unlocking an irq is one of the entry point to check
* for re-schedule, but we are good for io submission
* path as midlayer does a get_cpu to glue us in. Flush
* out the invalidate queue so we can see the updated
* value for flag.
*/
smp_rmb();
if (READ_ONCE(eq->mode) == LPFC_EQ_POLL)
/* We will not likely get the completion for the caller
* during this iteration but i guess that's fine.
* Future io's coming on this eq should be able to
* pick it up. As for the case of single io's, they
* will be handled through a sched from polling timer
* function which is currently triggered every 1msec.
*/
lpfc_sli4_process_eq(phba, eq, LPFC_QUEUE_NOARM,
LPFC_QUEUE_WORK);
}
/**
* lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
* @phba: Pointer to HBA context object.
* @ring_number: Ring number
* @piocb: Pointer to command iocb.
* @flag: Flag indicating if this command can be put into txq.
*
* lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
* function. This function gets the hbalock and calls
* __lpfc_sli_issue_iocb function and will return the error returned
* by __lpfc_sli_issue_iocb function. This wrapper is used by
* functions which do not hold hbalock.
**/
int
lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
struct lpfc_iocbq *piocb, uint32_t flag)
{
struct lpfc_sli_ring *pring;
struct lpfc_queue *eq;
unsigned long iflags;
int rc;
/* If the PCI channel is in offline state, do not post iocbs. */
if (unlikely(pci_channel_offline(phba->pcidev)))
return IOCB_ERROR;
if (phba->sli_rev == LPFC_SLI_REV4) {
lpfc_sli_prep_wqe(phba, piocb);
eq = phba->sli4_hba.hdwq[piocb->hba_wqidx].hba_eq;
pring = lpfc_sli4_calc_ring(phba, piocb);
if (unlikely(pring == NULL))
return IOCB_ERROR;
spin_lock_irqsave(&pring->ring_lock, iflags);
rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
lpfc_sli4_poll_eq(eq);
} else {
/* For now, SLI2/3 will still use hbalock */
spin_lock_irqsave(&phba->hbalock, iflags);
rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
return rc;
}
/**
* lpfc_extra_ring_setup - Extra ring setup function
* @phba: Pointer to HBA context object.
*
* This function is called while driver attaches with the
* HBA to setup the extra ring. The extra ring is used
* only when driver needs to support target mode functionality
* or IP over FC functionalities.
*
* This function is called with no lock held. SLI3 only.
**/
static int
lpfc_extra_ring_setup( struct lpfc_hba *phba)
{
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
psli = &phba->sli;
/* Adjust cmd/rsp ring iocb entries more evenly */
/* Take some away from the FCP ring */
pring = &psli->sli3_ring[LPFC_FCP_RING];
pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
/* and give them to the extra ring */
pring = &psli->sli3_ring[LPFC_EXTRA_RING];
pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
/* Setup default profile for this ring */
pring->iotag_max = 4096;
pring->num_mask = 1;
pring->prt[0].profile = 0; /* Mask 0 */
pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
pring->prt[0].type = phba->cfg_multi_ring_type;
pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
return 0;
}
static void
lpfc_sli_post_recovery_event(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp)
{
unsigned long iflags;
struct lpfc_work_evt *evtp = &ndlp->recovery_evt;
spin_lock_irqsave(&phba->hbalock, iflags);
if (!list_empty(&evtp->evt_listp)) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
return;
}
/* Incrementing the reference count until the queued work is done. */
evtp->evt_arg1 = lpfc_nlp_get(ndlp);
if (!evtp->evt_arg1) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
return;
}
evtp->evt = LPFC_EVT_RECOVER_PORT;
list_add_tail(&evtp->evt_listp, &phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, iflags);
lpfc_worker_wake_up(phba);
}
/* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
* @phba: Pointer to HBA context object.
* @iocbq: Pointer to iocb object.
*
* The async_event handler calls this routine when it receives
* an ASYNC_STATUS_CN event from the port. The port generates
* this event when an Abort Sequence request to an rport fails
* twice in succession. The abort could be originated by the
* driver or by the port. The ABTS could have been for an ELS
* or FCP IO. The port only generates this event when an ABTS
* fails to complete after one retry.
*/
static void
lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
struct lpfc_iocbq *iocbq)
{
struct lpfc_nodelist *ndlp = NULL;
uint16_t rpi = 0, vpi = 0;
struct lpfc_vport *vport = NULL;
/* The rpi in the ulpContext is vport-sensitive. */
vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
rpi = iocbq->iocb.ulpContext;
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3092 Port generated ABTS async event "
"on vpi %d rpi %d status 0x%x\n",
vpi, rpi, iocbq->iocb.ulpStatus);
vport = lpfc_find_vport_by_vpid(phba, vpi);
if (!vport)
goto err_exit;
ndlp = lpfc_findnode_rpi(vport, rpi);
if (!ndlp)
goto err_exit;
if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
lpfc_sli_abts_recover_port(vport, ndlp);
return;
err_exit:
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3095 Event Context not found, no "
"action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
vpi, rpi, iocbq->iocb.ulpStatus,
iocbq->iocb.ulpContext);
}
/* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
* @phba: pointer to HBA context object.
* @ndlp: nodelist pointer for the impacted rport.
* @axri: pointer to the wcqe containing the failed exchange.
*
* The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
* port. The port generates this event when an abort exchange request to an
* rport fails twice in succession with no reply. The abort could be originated
* by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
*/
void
lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp,
struct sli4_wcqe_xri_aborted *axri)
{
uint32_t ext_status = 0;
if (!ndlp) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3115 Node Context not found, driver "
"ignoring abts err event\n");
return;
}
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3116 Port generated FCP XRI ABORT event on "
"vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
bf_get(lpfc_wcqe_xa_xri, axri),
bf_get(lpfc_wcqe_xa_status, axri),
axri->parameter);
/*
* Catch the ABTS protocol failure case. Older OCe FW releases returned
* LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
* LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
*/
ext_status = axri->parameter & IOERR_PARAM_MASK;
if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
lpfc_sli_post_recovery_event(phba, ndlp);
}
/**
* lpfc_sli_async_event_handler - ASYNC iocb handler function
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @iocbq: Pointer to iocb object.
*
* This function is called by the slow ring event handler
* function when there is an ASYNC event iocb in the ring.
* This function is called with no lock held.
* Currently this function handles only temperature related
* ASYNC events. The function decodes the temperature sensor
* event message and posts events for the management applications.
**/
static void
lpfc_sli_async_event_handler(struct lpfc_hba * phba,
struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
{
IOCB_t *icmd;
uint16_t evt_code;
struct temp_event temp_event_data;
struct Scsi_Host *shost;
uint32_t *iocb_w;
icmd = &iocbq->iocb;
evt_code = icmd->un.asyncstat.evt_code;
switch (evt_code) {
case ASYNC_TEMP_WARN:
case ASYNC_TEMP_SAFE:
temp_event_data.data = (uint32_t) icmd->ulpContext;
temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
if (evt_code == ASYNC_TEMP_WARN) {
temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0347 Adapter is very hot, please take "
"corrective action. temperature : %d Celsius\n",
(uint32_t) icmd->ulpContext);
} else {
temp_event_data.event_code = LPFC_NORMAL_TEMP;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0340 Adapter temperature is OK now. "
"temperature : %d Celsius\n",
(uint32_t) icmd->ulpContext);
}
/* Send temperature change event to applications */
shost = lpfc_shost_from_vport(phba->pport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(temp_event_data), (char *) &temp_event_data,
LPFC_NL_VENDOR_ID);
break;
case ASYNC_STATUS_CN:
lpfc_sli_abts_err_handler(phba, iocbq);
break;
default:
iocb_w = (uint32_t *) icmd;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0346 Ring %d handler: unexpected ASYNC_STATUS"
" evt_code 0x%x\n"
"W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
"W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
"W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
"W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
pring->ringno, icmd->un.asyncstat.evt_code,
iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
break;
}
}
/**
* lpfc_sli4_setup - SLI ring setup function
* @phba: Pointer to HBA context object.
*
* lpfc_sli_setup sets up rings of the SLI interface with
* number of iocbs per ring and iotags. This function is
* called while driver attach to the HBA and before the
* interrupts are enabled. So there is no need for locking.
*
* This function always returns 0.
**/
int
lpfc_sli4_setup(struct lpfc_hba *phba)
{
struct lpfc_sli_ring *pring;
pring = phba->sli4_hba.els_wq->pring;
pring->num_mask = LPFC_MAX_RING_MASK;
pring->prt[0].profile = 0; /* Mask 0 */
pring->prt[0].rctl = FC_RCTL_ELS_REQ;
pring->prt[0].type = FC_TYPE_ELS;
pring->prt[0].lpfc_sli_rcv_unsol_event =
lpfc_els_unsol_event;
pring->prt[1].profile = 0; /* Mask 1 */
pring->prt[1].rctl = FC_RCTL_ELS_REP;
pring->prt[1].type = FC_TYPE_ELS;
pring->prt[1].lpfc_sli_rcv_unsol_event =
lpfc_els_unsol_event;
pring->prt[2].profile = 0; /* Mask 2 */
/* NameServer Inquiry */
pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
/* NameServer */
pring->prt[2].type = FC_TYPE_CT;
pring->prt[2].lpfc_sli_rcv_unsol_event =
lpfc_ct_unsol_event;
pring->prt[3].profile = 0; /* Mask 3 */
/* NameServer response */
pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
/* NameServer */
pring->prt[3].type = FC_TYPE_CT;
pring->prt[3].lpfc_sli_rcv_unsol_event =
lpfc_ct_unsol_event;
return 0;
}
/**
* lpfc_sli_setup - SLI ring setup function
* @phba: Pointer to HBA context object.
*
* lpfc_sli_setup sets up rings of the SLI interface with
* number of iocbs per ring and iotags. This function is
* called while driver attach to the HBA and before the
* interrupts are enabled. So there is no need for locking.
*
* This function always returns 0. SLI3 only.
**/
int
lpfc_sli_setup(struct lpfc_hba *phba)
{
int i, totiocbsize = 0;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
psli->sli_flag = 0;
psli->iocbq_lookup = NULL;
psli->iocbq_lookup_len = 0;
psli->last_iotag = 0;
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
switch (i) {
case LPFC_FCP_RING: /* ring 0 - FCP */
/* numCiocb and numRiocb are used in config_port */
pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
pring->sli.sli3.numCiocb +=
SLI2_IOCB_CMD_R1XTRA_ENTRIES;
pring->sli.sli3.numRiocb +=
SLI2_IOCB_RSP_R1XTRA_ENTRIES;
pring->sli.sli3.numCiocb +=
SLI2_IOCB_CMD_R3XTRA_ENTRIES;
pring->sli.sli3.numRiocb +=
SLI2_IOCB_RSP_R3XTRA_ENTRIES;
pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
SLI3_IOCB_CMD_SIZE :
SLI2_IOCB_CMD_SIZE;
pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
SLI3_IOCB_RSP_SIZE :
SLI2_IOCB_RSP_SIZE;
pring->iotag_ctr = 0;
pring->iotag_max =
(phba->cfg_hba_queue_depth * 2);
pring->fast_iotag = pring->iotag_max;
pring->num_mask = 0;
break;
case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
/* numCiocb and numRiocb are used in config_port */
pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
SLI3_IOCB_CMD_SIZE :
SLI2_IOCB_CMD_SIZE;
pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
SLI3_IOCB_RSP_SIZE :
SLI2_IOCB_RSP_SIZE;
pring->iotag_max = phba->cfg_hba_queue_depth;
pring->num_mask = 0;
break;
case LPFC_ELS_RING: /* ring 2 - ELS / CT */
/* numCiocb and numRiocb are used in config_port */
pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
SLI3_IOCB_CMD_SIZE :
SLI2_IOCB_CMD_SIZE;
pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
SLI3_IOCB_RSP_SIZE :
SLI2_IOCB_RSP_SIZE;
pring->fast_iotag = 0;
pring->iotag_ctr = 0;
pring->iotag_max = 4096;
pring->lpfc_sli_rcv_async_status =
lpfc_sli_async_event_handler;
pring->num_mask = LPFC_MAX_RING_MASK;
pring->prt[0].profile = 0; /* Mask 0 */
pring->prt[0].rctl = FC_RCTL_ELS_REQ;
pring->prt[0].type = FC_TYPE_ELS;
pring->prt[0].lpfc_sli_rcv_unsol_event =
lpfc_els_unsol_event;
pring->prt[1].profile = 0; /* Mask 1 */
pring->prt[1].rctl = FC_RCTL_ELS_REP;
pring->prt[1].type = FC_TYPE_ELS;
pring->prt[1].lpfc_sli_rcv_unsol_event =
lpfc_els_unsol_event;
pring->prt[2].profile = 0; /* Mask 2 */
/* NameServer Inquiry */
pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
/* NameServer */
pring->prt[2].type = FC_TYPE_CT;
pring->prt[2].lpfc_sli_rcv_unsol_event =
lpfc_ct_unsol_event;
pring->prt[3].profile = 0; /* Mask 3 */
/* NameServer response */
pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
/* NameServer */
pring->prt[3].type = FC_TYPE_CT;
pring->prt[3].lpfc_sli_rcv_unsol_event =
lpfc_ct_unsol_event;
break;
}
totiocbsize += (pring->sli.sli3.numCiocb *
pring->sli.sli3.sizeCiocb) +
(pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
}
if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
/* Too many cmd / rsp ring entries in SLI2 SLIM */
printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
"SLI2 SLIM Data: x%x x%lx\n",
phba->brd_no, totiocbsize,
(unsigned long) MAX_SLIM_IOCB_SIZE);
}
if (phba->cfg_multi_ring_support == 2)
lpfc_extra_ring_setup(phba);
return 0;
}
/**
* lpfc_sli4_queue_init - Queue initialization function
* @phba: Pointer to HBA context object.
*
* lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
* ring. This function also initializes ring indices of each ring.
* This function is called during the initialization of the SLI
* interface of an HBA.
* This function is called with no lock held and always returns
* 1.
**/
void
lpfc_sli4_queue_init(struct lpfc_hba *phba)
{
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
int i;
psli = &phba->sli;
spin_lock_irq(&phba->hbalock);
INIT_LIST_HEAD(&psli->mboxq);
INIT_LIST_HEAD(&psli->mboxq_cmpl);
/* Initialize list headers for txq and txcmplq as double linked lists */
for (i = 0; i < phba->cfg_hdw_queue; i++) {
pring = phba->sli4_hba.hdwq[i].io_wq->pring;
pring->flag = 0;
pring->ringno = LPFC_FCP_RING;
pring->txcmplq_cnt = 0;
INIT_LIST_HEAD(&pring->txq);
INIT_LIST_HEAD(&pring->txcmplq);
INIT_LIST_HEAD(&pring->iocb_continueq);
spin_lock_init(&pring->ring_lock);
}
pring = phba->sli4_hba.els_wq->pring;
pring->flag = 0;
pring->ringno = LPFC_ELS_RING;
pring->txcmplq_cnt = 0;
INIT_LIST_HEAD(&pring->txq);
INIT_LIST_HEAD(&pring->txcmplq);
INIT_LIST_HEAD(&pring->iocb_continueq);
spin_lock_init(&pring->ring_lock);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
pring = phba->sli4_hba.nvmels_wq->pring;
pring->flag = 0;
pring->ringno = LPFC_ELS_RING;
pring->txcmplq_cnt = 0;
INIT_LIST_HEAD(&pring->txq);
INIT_LIST_HEAD(&pring->txcmplq);
INIT_LIST_HEAD(&pring->iocb_continueq);
spin_lock_init(&pring->ring_lock);
}
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli_queue_init - Queue initialization function
* @phba: Pointer to HBA context object.
*
* lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
* ring. This function also initializes ring indices of each ring.
* This function is called during the initialization of the SLI
* interface of an HBA.
* This function is called with no lock held and always returns
* 1.
**/
void
lpfc_sli_queue_init(struct lpfc_hba *phba)
{
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
int i;
psli = &phba->sli;
spin_lock_irq(&phba->hbalock);
INIT_LIST_HEAD(&psli->mboxq);
INIT_LIST_HEAD(&psli->mboxq_cmpl);
/* Initialize list headers for txq and txcmplq as double linked lists */
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
pring->ringno = i;
pring->sli.sli3.next_cmdidx = 0;
pring->sli.sli3.local_getidx = 0;
pring->sli.sli3.cmdidx = 0;
INIT_LIST_HEAD(&pring->iocb_continueq);
INIT_LIST_HEAD(&pring->iocb_continue_saveq);
INIT_LIST_HEAD(&pring->postbufq);
pring->flag = 0;
INIT_LIST_HEAD(&pring->txq);
INIT_LIST_HEAD(&pring->txcmplq);
spin_lock_init(&pring->ring_lock);
}
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
* @phba: Pointer to HBA context object.
*
* This routine flushes the mailbox command subsystem. It will unconditionally
* flush all the mailbox commands in the three possible stages in the mailbox
* command sub-system: pending mailbox command queue; the outstanding mailbox
* command; and completed mailbox command queue. It is caller's responsibility
* to make sure that the driver is in the proper state to flush the mailbox
* command sub-system. Namely, the posting of mailbox commands into the
* pending mailbox command queue from the various clients must be stopped;
* either the HBA is in a state that it will never works on the outstanding
* mailbox command (such as in EEH or ERATT conditions) or the outstanding
* mailbox command has been completed.
**/
static void
lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
{
LIST_HEAD(completions);
struct lpfc_sli *psli = &phba->sli;
LPFC_MBOXQ_t *pmb;
unsigned long iflag;
/* Disable softirqs, including timers from obtaining phba->hbalock */
local_bh_disable();
/* Flush all the mailbox commands in the mbox system */
spin_lock_irqsave(&phba->hbalock, iflag);
/* The pending mailbox command queue */
list_splice_init(&phba->sli.mboxq, &completions);
/* The outstanding active mailbox command */
if (psli->mbox_active) {
list_add_tail(&psli->mbox_active->list, &completions);
psli->mbox_active = NULL;
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
}
/* The completed mailbox command queue */
list_splice_init(&phba->sli.mboxq_cmpl, &completions);
spin_unlock_irqrestore(&phba->hbalock, iflag);
/* Enable softirqs again, done with phba->hbalock */
local_bh_enable();
/* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
while (!list_empty(&completions)) {
list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
if (pmb->mbox_cmpl)
pmb->mbox_cmpl(phba, pmb);
}
}
/**
* lpfc_sli_host_down - Vport cleanup function
* @vport: Pointer to virtual port object.
*
* lpfc_sli_host_down is called to clean up the resources
* associated with a vport before destroying virtual
* port data structures.
* This function does following operations:
* - Free discovery resources associated with this virtual
* port.
* - Free iocbs associated with this virtual port in
* the txq.
* - Send abort for all iocb commands associated with this
* vport in txcmplq.
*
* This function is called with no lock held and always returns 1.
**/
int
lpfc_sli_host_down(struct lpfc_vport *vport)
{
LIST_HEAD(completions);
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_queue *qp = NULL;
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *iocb, *next_iocb;
int i;
unsigned long flags = 0;
uint16_t prev_pring_flag;
lpfc_cleanup_discovery_resources(vport);
spin_lock_irqsave(&phba->hbalock, flags);
/*
* Error everything on the txq since these iocbs
* have not been given to the FW yet.
* Also issue ABTS for everything on the txcmplq
*/
if (phba->sli_rev != LPFC_SLI_REV4) {
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
prev_pring_flag = pring->flag;
/* Only slow rings */
if (pring->ringno == LPFC_ELS_RING) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
/* Set the lpfc data pending flag */
set_bit(LPFC_DATA_READY, &phba->data_flags);
}
list_for_each_entry_safe(iocb, next_iocb,
&pring->txq, list) {
if (iocb->vport != vport)
continue;
list_move_tail(&iocb->list, &completions);
}
list_for_each_entry_safe(iocb, next_iocb,
&pring->txcmplq, list) {
if (iocb->vport != vport)
continue;
lpfc_sli_issue_abort_iotag(phba, pring, iocb,
NULL);
}
pring->flag = prev_pring_flag;
}
} else {
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
pring = qp->pring;
if (!pring)
continue;
if (pring == phba->sli4_hba.els_wq->pring) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
/* Set the lpfc data pending flag */
set_bit(LPFC_DATA_READY, &phba->data_flags);
}
prev_pring_flag = pring->flag;
spin_lock(&pring->ring_lock);
list_for_each_entry_safe(iocb, next_iocb,
&pring->txq, list) {
if (iocb->vport != vport)
continue;
list_move_tail(&iocb->list, &completions);
}
spin_unlock(&pring->ring_lock);
list_for_each_entry_safe(iocb, next_iocb,
&pring->txcmplq, list) {
if (iocb->vport != vport)
continue;
lpfc_sli_issue_abort_iotag(phba, pring, iocb,
NULL);
}
pring->flag = prev_pring_flag;
}
}
spin_unlock_irqrestore(&phba->hbalock, flags);
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_DOWN);
return 1;
}
/**
* lpfc_sli_hba_down - Resource cleanup function for the HBA
* @phba: Pointer to HBA context object.
*
* This function cleans up all iocb, buffers, mailbox commands
* while shutting down the HBA. This function is called with no
* lock held and always returns 1.
* This function does the following to cleanup driver resources:
* - Free discovery resources for each virtual port
* - Cleanup any pending fabric iocbs
* - Iterate through the iocb txq and free each entry
* in the list.
* - Free up any buffer posted to the HBA
* - Free mailbox commands in the mailbox queue.
**/
int
lpfc_sli_hba_down(struct lpfc_hba *phba)
{
LIST_HEAD(completions);
struct lpfc_sli *psli = &phba->sli;
struct lpfc_queue *qp = NULL;
struct lpfc_sli_ring *pring;
struct lpfc_dmabuf *buf_ptr;
unsigned long flags = 0;
int i;
/* Shutdown the mailbox command sub-system */
lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
lpfc_hba_down_prep(phba);
/* Disable softirqs, including timers from obtaining phba->hbalock */
local_bh_disable();
lpfc_fabric_abort_hba(phba);
spin_lock_irqsave(&phba->hbalock, flags);
/*
* Error everything on the txq since these iocbs
* have not been given to the FW yet.
*/
if (phba->sli_rev != LPFC_SLI_REV4) {
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
/* Only slow rings */
if (pring->ringno == LPFC_ELS_RING) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
/* Set the lpfc data pending flag */
set_bit(LPFC_DATA_READY, &phba->data_flags);
}
list_splice_init(&pring->txq, &completions);
}
} else {
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
pring = qp->pring;
if (!pring)
continue;
spin_lock(&pring->ring_lock);
list_splice_init(&pring->txq, &completions);
spin_unlock(&pring->ring_lock);
if (pring == phba->sli4_hba.els_wq->pring) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
/* Set the lpfc data pending flag */
set_bit(LPFC_DATA_READY, &phba->data_flags);
}
}
}
spin_unlock_irqrestore(&phba->hbalock, flags);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_DOWN);
spin_lock_irqsave(&phba->hbalock, flags);
list_splice_init(&phba->elsbuf, &completions);
phba->elsbuf_cnt = 0;
phba->elsbuf_prev_cnt = 0;
spin_unlock_irqrestore(&phba->hbalock, flags);
while (!list_empty(&completions)) {
list_remove_head(&completions, buf_ptr,
struct lpfc_dmabuf, list);
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
}
/* Enable softirqs again, done with phba->hbalock */
local_bh_enable();
/* Return any active mbox cmds */
del_timer_sync(&psli->mbox_tmo);
spin_lock_irqsave(&phba->pport->work_port_lock, flags);
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
return 1;
}
/**
* lpfc_sli_pcimem_bcopy - SLI memory copy function
* @srcp: Source memory pointer.
* @destp: Destination memory pointer.
* @cnt: Number of words required to be copied.
*
* This function is used for copying data between driver memory
* and the SLI memory. This function also changes the endianness
* of each word if native endianness is different from SLI
* endianness. This function can be called with or without
* lock.
**/
void
lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
{
uint32_t *src = srcp;
uint32_t *dest = destp;
uint32_t ldata;
int i;
for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
ldata = *src;
ldata = le32_to_cpu(ldata);
*dest = ldata;
src++;
dest++;
}
}
/**
* lpfc_sli_bemem_bcopy - SLI memory copy function
* @srcp: Source memory pointer.
* @destp: Destination memory pointer.
* @cnt: Number of words required to be copied.
*
* This function is used for copying data between a data structure
* with big endian representation to local endianness.
* This function can be called with or without lock.
**/
void
lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
{
uint32_t *src = srcp;
uint32_t *dest = destp;
uint32_t ldata;
int i;
for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
ldata = *src;
ldata = be32_to_cpu(ldata);
*dest = ldata;
src++;
dest++;
}
}
/**
* lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @mp: Pointer to driver buffer object.
*
* This function is called with no lock held.
* It always return zero after adding the buffer to the postbufq
* buffer list.
**/
int
lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_dmabuf *mp)
{
/* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
later */
spin_lock_irq(&phba->hbalock);
list_add_tail(&mp->list, &pring->postbufq);
pring->postbufq_cnt++;
spin_unlock_irq(&phba->hbalock);
return 0;
}
/**
* lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
* @phba: Pointer to HBA context object.
*
* When HBQ is enabled, buffers are searched based on tags. This function
* allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
* tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
* does not conflict with tags of buffer posted for unsolicited events.
* The function returns the allocated tag. The function is called with
* no locks held.
**/
uint32_t
lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
{
spin_lock_irq(&phba->hbalock);
phba->buffer_tag_count++;
/*
* Always set the QUE_BUFTAG_BIT to distiguish between
* a tag assigned by HBQ.
*/
phba->buffer_tag_count |= QUE_BUFTAG_BIT;
spin_unlock_irq(&phba->hbalock);
return phba->buffer_tag_count;
}
/**
* lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @tag: Buffer tag.
*
* Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
* list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
* iocb is posted to the response ring with the tag of the buffer.
* This function searches the pring->postbufq list using the tag
* to find buffer associated with CMD_IOCB_RET_XRI64_CX
* iocb. If the buffer is found then lpfc_dmabuf object of the
* buffer is returned to the caller else NULL is returned.
* This function is called with no lock held.
**/
struct lpfc_dmabuf *
lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
uint32_t tag)
{
struct lpfc_dmabuf *mp, *next_mp;
struct list_head *slp = &pring->postbufq;
/* Search postbufq, from the beginning, looking for a match on tag */
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
if (mp->buffer_tag == tag) {
list_del_init(&mp->list);
pring->postbufq_cnt--;
spin_unlock_irq(&phba->hbalock);
return mp;
}
}
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0402 Cannot find virtual addr for buffer tag on "
"ring %d Data x%lx x%px x%px x%x\n",
pring->ringno, (unsigned long) tag,
slp->next, slp->prev, pring->postbufq_cnt);
return NULL;
}
/**
* lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @phys: DMA address of the buffer.
*
* This function searches the buffer list using the dma_address
* of unsolicited event to find the driver's lpfc_dmabuf object
* corresponding to the dma_address. The function returns the
* lpfc_dmabuf object if a buffer is found else it returns NULL.
* This function is called by the ct and els unsolicited event
* handlers to get the buffer associated with the unsolicited
* event.
*
* This function is called with no lock held.
**/
struct lpfc_dmabuf *
lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dma_addr_t phys)
{
struct lpfc_dmabuf *mp, *next_mp;
struct list_head *slp = &pring->postbufq;
/* Search postbufq, from the beginning, looking for a match on phys */
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
if (mp->phys == phys) {
list_del_init(&mp->list);
pring->postbufq_cnt--;
spin_unlock_irq(&phba->hbalock);
return mp;
}
}
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0410 Cannot find virtual addr for mapped buf on "
"ring %d Data x%llx x%px x%px x%x\n",
pring->ringno, (unsigned long long)phys,
slp->next, slp->prev, pring->postbufq_cnt);
return NULL;
}
/**
* lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
* @phba: Pointer to HBA context object.
* @cmdiocb: Pointer to driver command iocb object.
* @rspiocb: Pointer to driver response iocb object.
*
* This function is the completion handler for the abort iocbs for
* ELS commands. This function is called from the ELS ring event
* handler with no lock held. This function frees memory resources
* associated with the abort iocb.
**/
static void
lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
u8 cmnd = get_job_cmnd(phba, cmdiocb);
if (ulp_status) {
/*
* Assume that the port already completed and returned, or
* will return the iocb. Just Log the message.
*/
if (phba->sli_rev < LPFC_SLI_REV4) {
if (cmnd == CMD_ABORT_XRI_CX &&
ulp_status == IOSTAT_LOCAL_REJECT &&
ulp_word4 == IOERR_ABORT_REQUESTED) {
goto release_iocb;
}
}
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
"0327 Cannot abort els iocb x%px "
"with io cmd xri %x abort tag : x%x, "
"abort status %x abort code %x\n",
cmdiocb, get_job_abtsiotag(phba, cmdiocb),
(phba->sli_rev == LPFC_SLI_REV4) ?
get_wqe_reqtag(cmdiocb) :
cmdiocb->iocb.un.acxri.abortContextTag,
ulp_status, ulp_word4);
}
release_iocb:
lpfc_sli_release_iocbq(phba, cmdiocb);
return;
}
/**
* lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
* @phba: Pointer to HBA context object.
* @cmdiocb: Pointer to driver command iocb object.
* @rspiocb: Pointer to driver response iocb object.
*
* The function is called from SLI ring event handler with no
* lock held. This function is the completion handler for ELS commands
* which are aborted. The function frees memory resources used for
* the aborted ELS commands.
**/
void
lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
IOCB_t *irsp;
LPFC_MBOXQ_t *mbox;
u32 ulp_command, ulp_status, ulp_word4, iotag;
ulp_command = get_job_cmnd(phba, cmdiocb);
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
iotag = get_wqe_reqtag(cmdiocb);
} else {
irsp = &rspiocb->iocb;
iotag = irsp->ulpIoTag;
/* It is possible a PLOGI_RJT for NPIV ports to get aborted.
* The MBX_REG_LOGIN64 mbox command is freed back to the
* mbox_mem_pool here.
*/
if (cmdiocb->context_un.mbox) {
mbox = cmdiocb->context_un.mbox;
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
cmdiocb->context_un.mbox = NULL;
}
}
/* ELS cmd tag <ulpIoTag> completes */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"0139 Ignoring ELS cmd code x%x completion Data: "
"x%x x%x x%x x%px\n",
ulp_command, ulp_status, ulp_word4, iotag,
cmdiocb->ndlp);
/*
* Deref the ndlp after free_iocb. sli_release_iocb will access the ndlp
* if exchange is busy.
*/
if (ulp_command == CMD_GEN_REQUEST64_CR)
lpfc_ct_free_iocb(phba, cmdiocb);
else
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
/**
* lpfc_sli_issue_abort_iotag - Abort function for a command iocb
* @phba: Pointer to HBA context object.
* @pring: Pointer to driver SLI ring object.
* @cmdiocb: Pointer to driver command iocb object.
* @cmpl: completion function.
*
* This function issues an abort iocb for the provided command iocb. In case
* of unloading, the abort iocb will not be issued to commands on the ELS
* ring. Instead, the callback function shall be changed to those commands
* so that nothing happens when them finishes. This function is called with
* hbalock held andno ring_lock held (SLI4). The function returns IOCB_SUCCESS
* when the command iocb is an abort request.
*
**/
int
lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *cmdiocb, void *cmpl)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_iocbq *abtsiocbp;
int retval = IOCB_ERROR;
unsigned long iflags;
struct lpfc_nodelist *ndlp = NULL;
u32 ulp_command = get_job_cmnd(phba, cmdiocb);
u16 ulp_context, iotag;
bool ia;
/*
* There are certain command types we don't want to abort. And we
* don't want to abort commands that are already in the process of
* being aborted.
*/
if (ulp_command == CMD_ABORT_XRI_WQE ||
ulp_command == CMD_ABORT_XRI_CN ||
ulp_command == CMD_CLOSE_XRI_CN ||
cmdiocb->cmd_flag & LPFC_DRIVER_ABORTED)
return IOCB_ABORTING;
if (!pring) {
if (cmdiocb->cmd_flag & LPFC_IO_FABRIC)
cmdiocb->fabric_cmd_cmpl = lpfc_ignore_els_cmpl;
else
cmdiocb->cmd_cmpl = lpfc_ignore_els_cmpl;
return retval;
}
/*
* If we're unloading, don't abort iocb on the ELS ring, but change
* the callback so that nothing happens when it finishes.
*/
if ((vport->load_flag & FC_UNLOADING) &&
pring->ringno == LPFC_ELS_RING) {
if (cmdiocb->cmd_flag & LPFC_IO_FABRIC)
cmdiocb->fabric_cmd_cmpl = lpfc_ignore_els_cmpl;
else
cmdiocb->cmd_cmpl = lpfc_ignore_els_cmpl;
return retval;
}
/* issue ABTS for this IOCB based on iotag */
abtsiocbp = __lpfc_sli_get_iocbq(phba);
if (abtsiocbp == NULL)
return IOCB_NORESOURCE;
/* This signals the response to set the correct status
* before calling the completion handler
*/
cmdiocb->cmd_flag |= LPFC_DRIVER_ABORTED;
if (phba->sli_rev == LPFC_SLI_REV4) {
ulp_context = cmdiocb->sli4_xritag;
iotag = abtsiocbp->iotag;
} else {
iotag = cmdiocb->iocb.ulpIoTag;
if (pring->ringno == LPFC_ELS_RING) {
ndlp = cmdiocb->ndlp;
ulp_context = ndlp->nlp_rpi;
} else {
ulp_context = cmdiocb->iocb.ulpContext;
}
}
if (phba->link_state < LPFC_LINK_UP ||
(phba->sli_rev == LPFC_SLI_REV4 &&
phba->sli4_hba.link_state.status == LPFC_FC_LA_TYPE_LINK_DOWN) ||
(phba->link_flag & LS_EXTERNAL_LOOPBACK))
ia = true;
else
ia = false;
lpfc_sli_prep_abort_xri(phba, abtsiocbp, ulp_context, iotag,
cmdiocb->iocb.ulpClass,
LPFC_WQE_CQ_ID_DEFAULT, ia, false);
abtsiocbp->vport = vport;
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
if (cmdiocb->cmd_flag & LPFC_IO_FCP)
abtsiocbp->cmd_flag |= (LPFC_IO_FCP | LPFC_USE_FCPWQIDX);
if (cmdiocb->cmd_flag & LPFC_IO_FOF)
abtsiocbp->cmd_flag |= LPFC_IO_FOF;
if (cmpl)
abtsiocbp->cmd_cmpl = cmpl;
else
abtsiocbp->cmd_cmpl = lpfc_sli_abort_els_cmpl;
abtsiocbp->vport = vport;
if (phba->sli_rev == LPFC_SLI_REV4) {
pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
if (unlikely(pring == NULL))
goto abort_iotag_exit;
/* Note: both hbalock and ring_lock need to be set here */
spin_lock_irqsave(&pring->ring_lock, iflags);
retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
abtsiocbp, 0);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
} else {
retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
abtsiocbp, 0);
}
abort_iotag_exit:
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
"0339 Abort IO XRI x%x, Original iotag x%x, "
"abort tag x%x Cmdjob : x%px Abortjob : x%px "
"retval x%x\n",
ulp_context, (phba->sli_rev == LPFC_SLI_REV4) ?
cmdiocb->iotag : iotag, iotag, cmdiocb, abtsiocbp,
retval);
if (retval) {
cmdiocb->cmd_flag &= ~LPFC_DRIVER_ABORTED;
__lpfc_sli_release_iocbq(phba, abtsiocbp);
}
/*
* Caller to this routine should check for IOCB_ERROR
* and handle it properly. This routine no longer removes
* iocb off txcmplq and call compl in case of IOCB_ERROR.
*/
return retval;
}
/**
* lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
* @phba: pointer to lpfc HBA data structure.
*
* This routine will abort all pending and outstanding iocbs to an HBA.
**/
void
lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
struct lpfc_queue *qp = NULL;
int i;
if (phba->sli_rev != LPFC_SLI_REV4) {
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
lpfc_sli_abort_iocb_ring(phba, pring);
}
return;
}
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
pring = qp->pring;
if (!pring)
continue;
lpfc_sli_abort_iocb_ring(phba, pring);
}
}
/**
* lpfc_sli_validate_fcp_iocb_for_abort - filter iocbs appropriate for FCP aborts
* @iocbq: Pointer to iocb object.
* @vport: Pointer to driver virtual port object.
*
* This function acts as an iocb filter for functions which abort FCP iocbs.
*
* Return values
* -ENODEV, if a null iocb or vport ptr is encountered
* -EINVAL, if the iocb is not an FCP I/O, not on the TX cmpl queue, premarked as
* driver already started the abort process, or is an abort iocb itself
* 0, passes criteria for aborting the FCP I/O iocb
**/
static int
lpfc_sli_validate_fcp_iocb_for_abort(struct lpfc_iocbq *iocbq,
struct lpfc_vport *vport)
{
u8 ulp_command;
/* No null ptr vports */
if (!iocbq || iocbq->vport != vport)
return -ENODEV;
/* iocb must be for FCP IO, already exists on the TX cmpl queue,
* can't be premarked as driver aborted, nor be an ABORT iocb itself
*/
ulp_command = get_job_cmnd(vport->phba, iocbq);
if (!(iocbq->cmd_flag & LPFC_IO_FCP) ||
!(iocbq->cmd_flag & LPFC_IO_ON_TXCMPLQ) ||
(iocbq->cmd_flag & LPFC_DRIVER_ABORTED) ||
(ulp_command == CMD_ABORT_XRI_CN ||
ulp_command == CMD_CLOSE_XRI_CN ||
ulp_command == CMD_ABORT_XRI_WQE))
return -EINVAL;
return 0;
}
/**
* lpfc_sli_validate_fcp_iocb - validate commands associated with a SCSI target
* @iocbq: Pointer to driver iocb object.
* @vport: Pointer to driver virtual port object.
* @tgt_id: SCSI ID of the target.
* @lun_id: LUN ID of the scsi device.
* @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
*
* This function acts as an iocb filter for validating a lun/SCSI target/SCSI
* host.
*
* It will return
* 0 if the filtering criteria is met for the given iocb and will return
* 1 if the filtering criteria is not met.
* If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
* given iocb is for the SCSI device specified by vport, tgt_id and
* lun_id parameter.
* If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
* given iocb is for the SCSI target specified by vport and tgt_id
* parameters.
* If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
* given iocb is for the SCSI host associated with the given vport.
* This function is called with no locks held.
**/
static int
lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
uint16_t tgt_id, uint64_t lun_id,
lpfc_ctx_cmd ctx_cmd)
{
struct lpfc_io_buf *lpfc_cmd;
int rc = 1;
lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
if (lpfc_cmd->pCmd == NULL)
return rc;
switch (ctx_cmd) {
case LPFC_CTX_LUN:
if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
(lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
(scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
rc = 0;
break;
case LPFC_CTX_TGT:
if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
(lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
rc = 0;
break;
case LPFC_CTX_HOST:
rc = 0;
break;
default:
printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
__func__, ctx_cmd);
break;
}
return rc;
}
/**
* lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
* @vport: Pointer to virtual port.
* @tgt_id: SCSI ID of the target.
* @lun_id: LUN ID of the scsi device.
* @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
*
* This function returns number of FCP commands pending for the vport.
* When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
* commands pending on the vport associated with SCSI device specified
* by tgt_id and lun_id parameters.
* When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
* commands pending on the vport associated with SCSI target specified
* by tgt_id parameter.
* When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
* commands pending on the vport.
* This function returns the number of iocbs which satisfy the filter.
* This function is called without any lock held.
**/
int
lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
lpfc_ctx_cmd ctx_cmd)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *iocbq;
int sum, i;
unsigned long iflags;
u8 ulp_command;
spin_lock_irqsave(&phba->hbalock, iflags);
for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
iocbq = phba->sli.iocbq_lookup[i];
if (!iocbq || iocbq->vport != vport)
continue;
if (!(iocbq->cmd_flag & LPFC_IO_FCP) ||
!(iocbq->cmd_flag & LPFC_IO_ON_TXCMPLQ))
continue;
/* Include counting outstanding aborts */
ulp_command = get_job_cmnd(phba, iocbq);
if (ulp_command == CMD_ABORT_XRI_CN ||
ulp_command == CMD_CLOSE_XRI_CN ||
ulp_command == CMD_ABORT_XRI_WQE) {
sum++;
continue;
}
if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
ctx_cmd) == 0)
sum++;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
return sum;
}
/**
* lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
* @phba: Pointer to HBA context object
* @cmdiocb: Pointer to command iocb object.
* @rspiocb: Pointer to response iocb object.
*
* This function is called when an aborted FCP iocb completes. This
* function is called by the ring event handler with no lock held.
* This function frees the iocb.
**/
void
lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3096 ABORT_XRI_CX completing on rpi x%x "
"original iotag x%x, abort cmd iotag x%x "
"status 0x%x, reason 0x%x\n",
(phba->sli_rev == LPFC_SLI_REV4) ?
cmdiocb->sli4_xritag :
cmdiocb->iocb.un.acxri.abortContextTag,
get_job_abtsiotag(phba, cmdiocb),
cmdiocb->iotag, get_job_ulpstatus(phba, rspiocb),
get_job_word4(phba, rspiocb));
lpfc_sli_release_iocbq(phba, cmdiocb);
return;
}
/**
* lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
* @vport: Pointer to virtual port.
* @tgt_id: SCSI ID of the target.
* @lun_id: LUN ID of the scsi device.
* @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
*
* This function sends an abort command for every SCSI command
* associated with the given virtual port pending on the ring
* filtered by lpfc_sli_validate_fcp_iocb_for_abort and then
* lpfc_sli_validate_fcp_iocb function. The ordering for validation before
* submitting abort iocbs must be lpfc_sli_validate_fcp_iocb_for_abort
* followed by lpfc_sli_validate_fcp_iocb.
*
* When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
* FCP iocbs associated with lun specified by tgt_id and lun_id
* parameters
* When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
* FCP iocbs associated with SCSI target specified by tgt_id parameter.
* When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
* FCP iocbs associated with virtual port.
* The pring used for SLI3 is sli3_ring[LPFC_FCP_RING], for SLI4
* lpfc_sli4_calc_ring is used.
* This function returns number of iocbs it failed to abort.
* This function is called with no locks held.
**/
int
lpfc_sli_abort_iocb(struct lpfc_vport *vport, u16 tgt_id, u64 lun_id,
lpfc_ctx_cmd abort_cmd)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli_ring *pring = NULL;
struct lpfc_iocbq *iocbq;
int errcnt = 0, ret_val = 0;
unsigned long iflags;
int i;
/* all I/Os are in process of being flushed */
if (phba->hba_flag & HBA_IOQ_FLUSH)
return errcnt;
for (i = 1; i <= phba->sli.last_iotag; i++) {
iocbq = phba->sli.iocbq_lookup[i];
if (lpfc_sli_validate_fcp_iocb_for_abort(iocbq, vport))
continue;
if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
abort_cmd) != 0)
continue;
spin_lock_irqsave(&phba->hbalock, iflags);
if (phba->sli_rev == LPFC_SLI_REV3) {
pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
} else if (phba->sli_rev == LPFC_SLI_REV4) {
pring = lpfc_sli4_calc_ring(phba, iocbq);
}
ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocbq,
lpfc_sli_abort_fcp_cmpl);
spin_unlock_irqrestore(&phba->hbalock, iflags);
if (ret_val != IOCB_SUCCESS)
errcnt++;
}
return errcnt;
}
/**
* lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
* @vport: Pointer to virtual port.
* @pring: Pointer to driver SLI ring object.
* @tgt_id: SCSI ID of the target.
* @lun_id: LUN ID of the scsi device.
* @cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
*
* This function sends an abort command for every SCSI command
* associated with the given virtual port pending on the ring
* filtered by lpfc_sli_validate_fcp_iocb_for_abort and then
* lpfc_sli_validate_fcp_iocb function. The ordering for validation before
* submitting abort iocbs must be lpfc_sli_validate_fcp_iocb_for_abort
* followed by lpfc_sli_validate_fcp_iocb.
*
* When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
* FCP iocbs associated with lun specified by tgt_id and lun_id
* parameters
* When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
* FCP iocbs associated with SCSI target specified by tgt_id parameter.
* When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
* FCP iocbs associated with virtual port.
* This function returns number of iocbs it aborted .
* This function is called with no locks held right after a taskmgmt
* command is sent.
**/
int
lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_io_buf *lpfc_cmd;
struct lpfc_iocbq *abtsiocbq;
struct lpfc_nodelist *ndlp = NULL;
struct lpfc_iocbq *iocbq;
int sum, i, ret_val;
unsigned long iflags;
struct lpfc_sli_ring *pring_s4 = NULL;
u16 ulp_context, iotag, cqid = LPFC_WQE_CQ_ID_DEFAULT;
bool ia;
spin_lock_irqsave(&phba->hbalock, iflags);
/* all I/Os are in process of being flushed */
if (phba->hba_flag & HBA_IOQ_FLUSH) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
return 0;
}
sum = 0;
for (i = 1; i <= phba->sli.last_iotag; i++) {
iocbq = phba->sli.iocbq_lookup[i];
if (lpfc_sli_validate_fcp_iocb_for_abort(iocbq, vport))
continue;
if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
cmd) != 0)
continue;
/* Guard against IO completion being called at same time */
lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
spin_lock(&lpfc_cmd->buf_lock);
if (!lpfc_cmd->pCmd) {
spin_unlock(&lpfc_cmd->buf_lock);
continue;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
pring_s4 =
phba->sli4_hba.hdwq[iocbq->hba_wqidx].io_wq->pring;
if (!pring_s4) {
spin_unlock(&lpfc_cmd->buf_lock);
continue;
}
/* Note: both hbalock and ring_lock must be set here */
spin_lock(&pring_s4->ring_lock);
}
/*
* If the iocbq is already being aborted, don't take a second
* action, but do count it.
*/
if ((iocbq->cmd_flag & LPFC_DRIVER_ABORTED) ||
!(iocbq->cmd_flag & LPFC_IO_ON_TXCMPLQ)) {
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring_s4->ring_lock);
spin_unlock(&lpfc_cmd->buf_lock);
continue;
}
/* issue ABTS for this IOCB based on iotag */
abtsiocbq = __lpfc_sli_get_iocbq(phba);
if (!abtsiocbq) {
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring_s4->ring_lock);
spin_unlock(&lpfc_cmd->buf_lock);
continue;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
iotag = abtsiocbq->iotag;
ulp_context = iocbq->sli4_xritag;
cqid = lpfc_cmd->hdwq->io_cq_map;
} else {
iotag = iocbq->iocb.ulpIoTag;
if (pring->ringno == LPFC_ELS_RING) {
ndlp = iocbq->ndlp;
ulp_context = ndlp->nlp_rpi;
} else {
ulp_context = iocbq->iocb.ulpContext;
}
}
ndlp = lpfc_cmd->rdata->pnode;
if (lpfc_is_link_up(phba) &&
(ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE) &&
!(phba->link_flag & LS_EXTERNAL_LOOPBACK))
ia = false;
else
ia = true;
lpfc_sli_prep_abort_xri(phba, abtsiocbq, ulp_context, iotag,
iocbq->iocb.ulpClass, cqid,
ia, false);
abtsiocbq->vport = vport;
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
if (iocbq->cmd_flag & LPFC_IO_FCP)
abtsiocbq->cmd_flag |= LPFC_USE_FCPWQIDX;
if (iocbq->cmd_flag & LPFC_IO_FOF)
abtsiocbq->cmd_flag |= LPFC_IO_FOF;
/* Setup callback routine and issue the command. */
abtsiocbq->cmd_cmpl = lpfc_sli_abort_fcp_cmpl;
/*
* Indicate the IO is being aborted by the driver and set
* the caller's flag into the aborted IO.
*/
iocbq->cmd_flag |= LPFC_DRIVER_ABORTED;
if (phba->sli_rev == LPFC_SLI_REV4) {
ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
abtsiocbq, 0);
spin_unlock(&pring_s4->ring_lock);
} else {
ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
abtsiocbq, 0);
}
spin_unlock(&lpfc_cmd->buf_lock);
if (ret_val == IOCB_ERROR)
__lpfc_sli_release_iocbq(phba, abtsiocbq);
else
sum++;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
return sum;
}
/**
* lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
* @phba: Pointer to HBA context object.
* @cmdiocbq: Pointer to command iocb.
* @rspiocbq: Pointer to response iocb.
*
* This function is the completion handler for iocbs issued using
* lpfc_sli_issue_iocb_wait function. This function is called by the
* ring event handler function without any lock held. This function
* can be called from both worker thread context and interrupt
* context. This function also can be called from other thread which
* cleans up the SLI layer objects.
* This function copy the contents of the response iocb to the
* response iocb memory object provided by the caller of
* lpfc_sli_issue_iocb_wait and then wakes up the thread which
* sleeps for the iocb completion.
**/
static void
lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbq,
struct lpfc_iocbq *rspiocbq)
{
wait_queue_head_t *pdone_q;
unsigned long iflags;
struct lpfc_io_buf *lpfc_cmd;
size_t offset = offsetof(struct lpfc_iocbq, wqe);
spin_lock_irqsave(&phba->hbalock, iflags);
if (cmdiocbq->cmd_flag & LPFC_IO_WAKE_TMO) {
/*
* A time out has occurred for the iocb. If a time out
* completion handler has been supplied, call it. Otherwise,
* just free the iocbq.
*/
spin_unlock_irqrestore(&phba->hbalock, iflags);
cmdiocbq->cmd_cmpl = cmdiocbq->wait_cmd_cmpl;
cmdiocbq->wait_cmd_cmpl = NULL;
if (cmdiocbq->cmd_cmpl)
cmdiocbq->cmd_cmpl(phba, cmdiocbq, NULL);
else
lpfc_sli_release_iocbq(phba, cmdiocbq);
return;
}
/* Copy the contents of the local rspiocb into the caller's buffer. */
cmdiocbq->cmd_flag |= LPFC_IO_WAKE;
if (cmdiocbq->rsp_iocb && rspiocbq)
memcpy((char *)cmdiocbq->rsp_iocb + offset,
(char *)rspiocbq + offset, sizeof(*rspiocbq) - offset);
/* Set the exchange busy flag for task management commands */
if ((cmdiocbq->cmd_flag & LPFC_IO_FCP) &&
!(cmdiocbq->cmd_flag & LPFC_IO_LIBDFC)) {
lpfc_cmd = container_of(cmdiocbq, struct lpfc_io_buf,
cur_iocbq);
if (rspiocbq && (rspiocbq->cmd_flag & LPFC_EXCHANGE_BUSY))
lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
else
lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
}
pdone_q = cmdiocbq->context_un.wait_queue;
if (pdone_q)
wake_up(pdone_q);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return;
}
/**
* lpfc_chk_iocb_flg - Test IOCB flag with lock held.
* @phba: Pointer to HBA context object..
* @piocbq: Pointer to command iocb.
* @flag: Flag to test.
*
* This routine grabs the hbalock and then test the cmd_flag to
* see if the passed in flag is set.
* Returns:
* 1 if flag is set.
* 0 if flag is not set.
**/
static int
lpfc_chk_iocb_flg(struct lpfc_hba *phba,
struct lpfc_iocbq *piocbq, uint32_t flag)
{
unsigned long iflags;
int ret;
spin_lock_irqsave(&phba->hbalock, iflags);
ret = piocbq->cmd_flag & flag;
spin_unlock_irqrestore(&phba->hbalock, iflags);
return ret;
}
/**
* lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
* @phba: Pointer to HBA context object..
* @ring_number: Ring number
* @piocb: Pointer to command iocb.
* @prspiocbq: Pointer to response iocb.
* @timeout: Timeout in number of seconds.
*
* This function issues the iocb to firmware and waits for the
* iocb to complete. The cmd_cmpl field of the shall be used
* to handle iocbs which time out. If the field is NULL, the
* function shall free the iocbq structure. If more clean up is
* needed, the caller is expected to provide a completion function
* that will provide the needed clean up. If the iocb command is
* not completed within timeout seconds, the function will either
* free the iocbq structure (if cmd_cmpl == NULL) or execute the
* completion function set in the cmd_cmpl field and then return
* a status of IOCB_TIMEDOUT. The caller should not free the iocb
* resources if this function returns IOCB_TIMEDOUT.
* The function waits for the iocb completion using an
* non-interruptible wait.
* This function will sleep while waiting for iocb completion.
* So, this function should not be called from any context which
* does not allow sleeping. Due to the same reason, this function
* cannot be called with interrupt disabled.
* This function assumes that the iocb completions occur while
* this function sleep. So, this function cannot be called from
* the thread which process iocb completion for this ring.
* This function clears the cmd_flag of the iocb object before
* issuing the iocb and the iocb completion handler sets this
* flag and wakes this thread when the iocb completes.
* The contents of the response iocb will be copied to prspiocbq
* by the completion handler when the command completes.
* This function returns IOCB_SUCCESS when success.
* This function is called with no lock held.
**/
int
lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
uint32_t ring_number,
struct lpfc_iocbq *piocb,
struct lpfc_iocbq *prspiocbq,
uint32_t timeout)
{
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
long timeleft, timeout_req = 0;
int retval = IOCB_SUCCESS;
uint32_t creg_val;
struct lpfc_iocbq *iocb;
int txq_cnt = 0;
int txcmplq_cnt = 0;
struct lpfc_sli_ring *pring;
unsigned long iflags;
bool iocb_completed = true;
if (phba->sli_rev >= LPFC_SLI_REV4) {
lpfc_sli_prep_wqe(phba, piocb);
pring = lpfc_sli4_calc_ring(phba, piocb);
} else
pring = &phba->sli.sli3_ring[ring_number];
/*
* If the caller has provided a response iocbq buffer, then rsp_iocb
* is NULL or its an error.
*/
if (prspiocbq) {
if (piocb->rsp_iocb)
return IOCB_ERROR;
piocb->rsp_iocb = prspiocbq;
}
piocb->wait_cmd_cmpl = piocb->cmd_cmpl;
piocb->cmd_cmpl = lpfc_sli_wake_iocb_wait;
piocb->context_un.wait_queue = &done_q;
piocb->cmd_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
if (lpfc_readl(phba->HCregaddr, &creg_val))
return IOCB_ERROR;
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
SLI_IOCB_RET_IOCB);
if (retval == IOCB_SUCCESS) {
timeout_req = msecs_to_jiffies(timeout * 1000);
timeleft = wait_event_timeout(done_q,
lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
timeout_req);
spin_lock_irqsave(&phba->hbalock, iflags);
if (!(piocb->cmd_flag & LPFC_IO_WAKE)) {
/*
* IOCB timed out. Inform the wake iocb wait
* completion function and set local status
*/
iocb_completed = false;
piocb->cmd_flag |= LPFC_IO_WAKE_TMO;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
if (iocb_completed) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0331 IOCB wake signaled\n");
/* Note: we are not indicating if the IOCB has a success
* status or not - that's for the caller to check.
* IOCB_SUCCESS means just that the command was sent and
* completed. Not that it completed successfully.
* */
} else if (timeleft == 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0338 IOCB wait timeout error - no "
"wake response Data x%x\n", timeout);
retval = IOCB_TIMEDOUT;
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0330 IOCB wake NOT set, "
"Data x%x x%lx\n",
timeout, (timeleft / jiffies));
retval = IOCB_TIMEDOUT;
}
} else if (retval == IOCB_BUSY) {
if (phba->cfg_log_verbose & LOG_SLI) {
list_for_each_entry(iocb, &pring->txq, list) {
txq_cnt++;
}
list_for_each_entry(iocb, &pring->txcmplq, list) {
txcmplq_cnt++;
}
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
phba->iocb_cnt, txq_cnt, txcmplq_cnt);
}
return retval;
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0332 IOCB wait issue failed, Data x%x\n",
retval);
retval = IOCB_ERROR;
}
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
if (lpfc_readl(phba->HCregaddr, &creg_val))
return IOCB_ERROR;
creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
if (prspiocbq)
piocb->rsp_iocb = NULL;
piocb->context_un.wait_queue = NULL;
piocb->cmd_cmpl = NULL;
return retval;
}
/**
* lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
* @phba: Pointer to HBA context object.
* @pmboxq: Pointer to driver mailbox object.
* @timeout: Timeout in number of seconds.
*
* This function issues the mailbox to firmware and waits for the
* mailbox command to complete. If the mailbox command is not
* completed within timeout seconds, it returns MBX_TIMEOUT.
* The function waits for the mailbox completion using an
* interruptible wait. If the thread is woken up due to a
* signal, MBX_TIMEOUT error is returned to the caller. Caller
* should not free the mailbox resources, if this function returns
* MBX_TIMEOUT.
* This function will sleep while waiting for mailbox completion.
* So, this function should not be called from any context which
* does not allow sleeping. Due to the same reason, this function
* cannot be called with interrupt disabled.
* This function assumes that the mailbox completion occurs while
* this function sleep. So, this function cannot be called from
* the worker thread which processes mailbox completion.
* This function is called in the context of HBA management
* applications.
* This function returns MBX_SUCCESS when successful.
* This function is called with no lock held.
**/
int
lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
uint32_t timeout)
{
struct completion mbox_done;
int retval;
unsigned long flag;
pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
/* setup wake call as IOCB callback */
pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
/* setup context3 field to pass wait_queue pointer to wake function */
init_completion(&mbox_done);
pmboxq->context3 = &mbox_done;
/* now issue the command */
retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
wait_for_completion_timeout(&mbox_done,
msecs_to_jiffies(timeout * 1000));
spin_lock_irqsave(&phba->hbalock, flag);
pmboxq->context3 = NULL;
/*
* if LPFC_MBX_WAKE flag is set the mailbox is completed
* else do not free the resources.
*/
if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
retval = MBX_SUCCESS;
} else {
retval = MBX_TIMEOUT;
pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
}
spin_unlock_irqrestore(&phba->hbalock, flag);
}
return retval;
}
/**
* lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
* @phba: Pointer to HBA context.
* @mbx_action: Mailbox shutdown options.
*
* This function is called to shutdown the driver's mailbox sub-system.
* It first marks the mailbox sub-system is in a block state to prevent
* the asynchronous mailbox command from issued off the pending mailbox
* command queue. If the mailbox command sub-system shutdown is due to
* HBA error conditions such as EEH or ERATT, this routine shall invoke
* the mailbox sub-system flush routine to forcefully bring down the
* mailbox sub-system. Otherwise, if it is due to normal condition (such
* as with offline or HBA function reset), this routine will wait for the
* outstanding mailbox command to complete before invoking the mailbox
* sub-system flush routine to gracefully bring down mailbox sub-system.
**/
void
lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
{
struct lpfc_sli *psli = &phba->sli;
unsigned long timeout;
if (mbx_action == LPFC_MBX_NO_WAIT) {
/* delay 100ms for port state */
msleep(100);
lpfc_sli_mbox_sys_flush(phba);
return;
}
timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
/* Disable softirqs, including timers from obtaining phba->hbalock */
local_bh_disable();
spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
if (psli->sli_flag & LPFC_SLI_ACTIVE) {
/* Determine how long we might wait for the active mailbox
* command to be gracefully completed by firmware.
*/
if (phba->sli.mbox_active)
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
phba->sli.mbox_active) *
1000) + jiffies;
spin_unlock_irq(&phba->hbalock);
/* Enable softirqs again, done with phba->hbalock */
local_bh_enable();
while (phba->sli.mbox_active) {
/* Check active mailbox complete status every 2ms */
msleep(2);
if (time_after(jiffies, timeout))
/* Timeout, let the mailbox flush routine to
* forcefully release active mailbox command
*/
break;
}
} else {
spin_unlock_irq(&phba->hbalock);
/* Enable softirqs again, done with phba->hbalock */
local_bh_enable();
}
lpfc_sli_mbox_sys_flush(phba);
}
/**
* lpfc_sli_eratt_read - read sli-3 error attention events
* @phba: Pointer to HBA context.
*
* This function is called to read the SLI3 device error attention registers
* for possible error attention events. The caller must hold the hostlock
* with spin_lock_irq().
*
* This function returns 1 when there is Error Attention in the Host Attention
* Register and returns 0 otherwise.
**/
static int
lpfc_sli_eratt_read(struct lpfc_hba *phba)
{
uint32_t ha_copy;
/* Read chip Host Attention (HA) register */
if (lpfc_readl(phba->HAregaddr, &ha_copy))
goto unplug_err;
if (ha_copy & HA_ERATT) {
/* Read host status register to retrieve error event */
if (lpfc_sli_read_hs(phba))
goto unplug_err;
/* Check if there is a deferred error condition is active */
if ((HS_FFER1 & phba->work_hs) &&
((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
phba->hba_flag |= DEFER_ERATT;
/* Clear all interrupt enable conditions */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr);
}
/* Set the driver HA work bitmap */
phba->work_ha |= HA_ERATT;
/* Indicate polling handles this ERATT */
phba->hba_flag |= HBA_ERATT_HANDLED;
return 1;
}
return 0;
unplug_err:
/* Set the driver HS work bitmap */
phba->work_hs |= UNPLUG_ERR;
/* Set the driver HA work bitmap */
phba->work_ha |= HA_ERATT;
/* Indicate polling handles this ERATT */
phba->hba_flag |= HBA_ERATT_HANDLED;
return 1;
}
/**
* lpfc_sli4_eratt_read - read sli-4 error attention events
* @phba: Pointer to HBA context.
*
* This function is called to read the SLI4 device error attention registers
* for possible error attention events. The caller must hold the hostlock
* with spin_lock_irq().
*
* This function returns 1 when there is Error Attention in the Host Attention
* Register and returns 0 otherwise.
**/
static int
lpfc_sli4_eratt_read(struct lpfc_hba *phba)
{
uint32_t uerr_sta_hi, uerr_sta_lo;
uint32_t if_type, portsmphr;
struct lpfc_register portstat_reg;
u32 logmask;
/*
* For now, use the SLI4 device internal unrecoverable error
* registers for error attention. This can be changed later.
*/
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
&uerr_sta_lo) ||
lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
&uerr_sta_hi)) {
phba->work_hs |= UNPLUG_ERR;
phba->work_ha |= HA_ERATT;
phba->hba_flag |= HBA_ERATT_HANDLED;
return 1;
}
if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
(~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1423 HBA Unrecoverable error: "
"uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
"ue_mask_lo_reg=0x%x, "
"ue_mask_hi_reg=0x%x\n",
uerr_sta_lo, uerr_sta_hi,
phba->sli4_hba.ue_mask_lo,
phba->sli4_hba.ue_mask_hi);
phba->work_status[0] = uerr_sta_lo;
phba->work_status[1] = uerr_sta_hi;
phba->work_ha |= HA_ERATT;
phba->hba_flag |= HBA_ERATT_HANDLED;
return 1;
}
break;
case LPFC_SLI_INTF_IF_TYPE_2:
case LPFC_SLI_INTF_IF_TYPE_6:
if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
&portstat_reg.word0) ||
lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
&portsmphr)){
phba->work_hs |= UNPLUG_ERR;
phba->work_ha |= HA_ERATT;
phba->hba_flag |= HBA_ERATT_HANDLED;
return 1;
}
if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
phba->work_status[0] =
readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
phba->work_status[1] =
readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
logmask = LOG_TRACE_EVENT;
if (phba->work_status[0] ==
SLIPORT_ERR1_REG_ERR_CODE_2 &&
phba->work_status[1] == SLIPORT_ERR2_REG_FW_RESTART)
logmask = LOG_SLI;
lpfc_printf_log(phba, KERN_ERR, logmask,
"2885 Port Status Event: "
"port status reg 0x%x, "
"port smphr reg 0x%x, "
"error 1=0x%x, error 2=0x%x\n",
portstat_reg.word0,
portsmphr,
phba->work_status[0],
phba->work_status[1]);
phba->work_ha |= HA_ERATT;
phba->hba_flag |= HBA_ERATT_HANDLED;
return 1;
}
break;
case LPFC_SLI_INTF_IF_TYPE_1:
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2886 HBA Error Attention on unsupported "
"if type %d.", if_type);
return 1;
}
return 0;
}
/**
* lpfc_sli_check_eratt - check error attention events
* @phba: Pointer to HBA context.
*
* This function is called from timer soft interrupt context to check HBA's
* error attention register bit for error attention events.
*
* This function returns 1 when there is Error Attention in the Host Attention
* Register and returns 0 otherwise.
**/
int
lpfc_sli_check_eratt(struct lpfc_hba *phba)
{
uint32_t ha_copy;
/* If somebody is waiting to handle an eratt, don't process it
* here. The brdkill function will do this.
*/
if (phba->link_flag & LS_IGNORE_ERATT)
return 0;
/* Check if interrupt handler handles this ERATT */
spin_lock_irq(&phba->hbalock);
if (phba->hba_flag & HBA_ERATT_HANDLED) {
/* Interrupt handler has handled ERATT */
spin_unlock_irq(&phba->hbalock);
return 0;
}
/*
* If there is deferred error attention, do not check for error
* attention
*/
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
spin_unlock_irq(&phba->hbalock);
return 0;
}
/* If PCI channel is offline, don't process it */
if (unlikely(pci_channel_offline(phba->pcidev))) {
spin_unlock_irq(&phba->hbalock);
return 0;
}
switch (phba->sli_rev) {
case LPFC_SLI_REV2:
case LPFC_SLI_REV3:
/* Read chip Host Attention (HA) register */
ha_copy = lpfc_sli_eratt_read(phba);
break;
case LPFC_SLI_REV4:
/* Read device Uncoverable Error (UERR) registers */
ha_copy = lpfc_sli4_eratt_read(phba);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0299 Invalid SLI revision (%d)\n",
phba->sli_rev);
ha_copy = 0;
break;
}
spin_unlock_irq(&phba->hbalock);
return ha_copy;
}
/**
* lpfc_intr_state_check - Check device state for interrupt handling
* @phba: Pointer to HBA context.
*
* This inline routine checks whether a device or its PCI slot is in a state
* that the interrupt should be handled.
*
* This function returns 0 if the device or the PCI slot is in a state that
* interrupt should be handled, otherwise -EIO.
*/
static inline int
lpfc_intr_state_check(struct lpfc_hba *phba)
{
/* If the pci channel is offline, ignore all the interrupts */
if (unlikely(pci_channel_offline(phba->pcidev)))
return -EIO;
/* Update device level interrupt statistics */
phba->sli.slistat.sli_intr++;
/* Ignore all interrupts during initialization. */
if (unlikely(phba->link_state < LPFC_LINK_DOWN))
return -EIO;
return 0;
}
/**
* lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
* This function is directly called from the PCI layer as an interrupt
* service routine when device with SLI-3 interface spec is enabled with
* MSI-X multi-message interrupt mode and there are slow-path events in
* the HBA. However, when the device is enabled with either MSI or Pin-IRQ
* interrupt mode, this function is called as part of the device-level
* interrupt handler. When the PCI slot is in error recovery or the HBA
* is undergoing initialization, the interrupt handler will not process
* the interrupt. The link attention and ELS ring attention events are
* handled by the worker thread. The interrupt handler signals the worker
* thread and returns for these events. This function is called without
* any lock held. It gets the hbalock to access and update SLI data
* structures.
*
* This function returns IRQ_HANDLED when interrupt is handled else it
* returns IRQ_NONE.
**/
irqreturn_t
lpfc_sli_sp_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
uint32_t ha_copy, hc_copy;
uint32_t work_ha_copy;
unsigned long status;
unsigned long iflag;
uint32_t control;
MAILBOX_t *mbox, *pmbox;
struct lpfc_vport *vport;
struct lpfc_nodelist *ndlp;
struct lpfc_dmabuf *mp;
LPFC_MBOXQ_t *pmb;
int rc;
/*
* Get the driver's phba structure from the dev_id and
* assume the HBA is not interrupting.
*/
phba = (struct lpfc_hba *)dev_id;
if (unlikely(!phba))
return IRQ_NONE;
/*
* Stuff needs to be attented to when this function is invoked as an
* individual interrupt handler in MSI-X multi-message interrupt mode
*/
if (phba->intr_type == MSIX) {
/* Check device state for handling interrupt */
if (lpfc_intr_state_check(phba))
return IRQ_NONE;
/* Need to read HA REG for slow-path events */
spin_lock_irqsave(&phba->hbalock, iflag);
if (lpfc_readl(phba->HAregaddr, &ha_copy))
goto unplug_error;
/* If somebody is waiting to handle an eratt don't process it
* here. The brdkill function will do this.
*/
if (phba->link_flag & LS_IGNORE_ERATT)
ha_copy &= ~HA_ERATT;
/* Check the need for handling ERATT in interrupt handler */
if (ha_copy & HA_ERATT) {
if (phba->hba_flag & HBA_ERATT_HANDLED)
/* ERATT polling has handled ERATT */
ha_copy &= ~HA_ERATT;
else
/* Indicate interrupt handler handles ERATT */
phba->hba_flag |= HBA_ERATT_HANDLED;
}
/*
* If there is deferred error attention, do not check for any
* interrupt.
*/
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
return IRQ_NONE;
}
/* Clear up only attention source related to slow-path */
if (lpfc_readl(phba->HCregaddr, &hc_copy))
goto unplug_error;
writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
HC_LAINT_ENA | HC_ERINT_ENA),
phba->HCregaddr);
writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
phba->HAregaddr);
writel(hc_copy, phba->HCregaddr);
readl(phba->HAregaddr); /* flush */
spin_unlock_irqrestore(&phba->hbalock, iflag);
} else
ha_copy = phba->ha_copy;
work_ha_copy = ha_copy & phba->work_ha_mask;
if (work_ha_copy) {
if (work_ha_copy & HA_LATT) {
if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
/*
* Turn off Link Attention interrupts
* until CLEAR_LA done
*/
spin_lock_irqsave(&phba->hbalock, iflag);
phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
if (lpfc_readl(phba->HCregaddr, &control))
goto unplug_error;
control &= ~HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
spin_unlock_irqrestore(&phba->hbalock, iflag);
}
else
work_ha_copy &= ~HA_LATT;
}
if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
/*
* Turn off Slow Rings interrupts, LPFC_ELS_RING is
* the only slow ring.
*/
status = (work_ha_copy &
(HA_RXMASK << (4*LPFC_ELS_RING)));
status >>= (4*LPFC_ELS_RING);
if (status & HA_RXMASK) {
spin_lock_irqsave(&phba->hbalock, iflag);
if (lpfc_readl(phba->HCregaddr, &control))
goto unplug_error;
lpfc_debugfs_slow_ring_trc(phba,
"ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
control, status,
(uint32_t)phba->sli.slistat.sli_intr);
if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
lpfc_debugfs_slow_ring_trc(phba,
"ISR Disable ring:"
"pwork:x%x hawork:x%x wait:x%x",
phba->work_ha, work_ha_copy,
(uint32_t)((unsigned long)
&phba->work_waitq));
control &=
~(HC_R0INT_ENA << LPFC_ELS_RING);
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
else {
lpfc_debugfs_slow_ring_trc(phba,
"ISR slow ring: pwork:"
"x%x hawork:x%x wait:x%x",
phba->work_ha, work_ha_copy,
(uint32_t)((unsigned long)
&phba->work_waitq));
}
spin_unlock_irqrestore(&phba->hbalock, iflag);
}
}
spin_lock_irqsave(&phba->hbalock, iflag);
if (work_ha_copy & HA_ERATT) {
if (lpfc_sli_read_hs(phba))
goto unplug_error;
/*
* Check if there is a deferred error condition
* is active
*/
if ((HS_FFER1 & phba->work_hs) &&
((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
HS_FFER6 | HS_FFER7 | HS_FFER8) &
phba->work_hs)) {
phba->hba_flag |= DEFER_ERATT;
/* Clear all interrupt enable conditions */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr);
}
}
if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
pmb = phba->sli.mbox_active;
pmbox = &pmb->u.mb;
mbox = phba->mbox;
vport = pmb->vport;
/* First check out the status word */
lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
if (pmbox->mbxOwner != OWN_HOST) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
/*
* Stray Mailbox Interrupt, mbxCommand <cmd>
* mbxStatus <status>
*/
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"(%d):0304 Stray Mailbox "
"Interrupt mbxCommand x%x "
"mbxStatus x%x\n",
(vport ? vport->vpi : 0),
pmbox->mbxCommand,
pmbox->mbxStatus);
/* clear mailbox attention bit */
work_ha_copy &= ~HA_MBATT;
} else {
phba->sli.mbox_active = NULL;
spin_unlock_irqrestore(&phba->hbalock, iflag);
phba->last_completion_time = jiffies;
del_timer(&phba->sli.mbox_tmo);
if (pmb->mbox_cmpl) {
lpfc_sli_pcimem_bcopy(mbox, pmbox,
MAILBOX_CMD_SIZE);
if (pmb->out_ext_byte_len &&
pmb->ctx_buf)
lpfc_sli_pcimem_bcopy(
phba->mbox_ext,
pmb->ctx_buf,
pmb->out_ext_byte_len);
}
if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
lpfc_debugfs_disc_trc(vport,
LPFC_DISC_TRC_MBOX_VPORT,
"MBOX dflt rpi: : "
"status:x%x rpi:x%x",
(uint32_t)pmbox->mbxStatus,
pmbox->un.varWords[0], 0);
if (!pmbox->mbxStatus) {
mp = (struct lpfc_dmabuf *)
(pmb->ctx_buf);
ndlp = (struct lpfc_nodelist *)
pmb->ctx_ndlp;
/* Reg_LOGIN of dflt RPI was
* successful. new lets get
* rid of the RPI using the
* same mbox buffer.
*/
lpfc_unreg_login(phba,
vport->vpi,
pmbox->un.varWords[0],
pmb);
pmb->mbox_cmpl =
lpfc_mbx_cmpl_dflt_rpi;
pmb->ctx_buf = mp;
pmb->ctx_ndlp = ndlp;
pmb->vport = vport;
rc = lpfc_sli_issue_mbox(phba,
pmb,
MBX_NOWAIT);
if (rc != MBX_BUSY)
lpfc_printf_log(phba,
KERN_ERR,
LOG_TRACE_EVENT,
"0350 rc should have"
"been MBX_BUSY\n");
if (rc != MBX_NOT_FINISHED)
goto send_current_mbox;
}
}
spin_lock_irqsave(
&phba->pport->work_port_lock,
iflag);
phba->pport->work_port_events &=
~WORKER_MBOX_TMO;
spin_unlock_irqrestore(
&phba->pport->work_port_lock,
iflag);
/* Do NOT queue MBX_HEARTBEAT to the worker
* thread for processing.
*/
if (pmbox->mbxCommand == MBX_HEARTBEAT) {
/* Process mbox now */
phba->sli.mbox_active = NULL;
phba->sli.sli_flag &=
~LPFC_SLI_MBOX_ACTIVE;
if (pmb->mbox_cmpl)
pmb->mbox_cmpl(phba, pmb);
} else {
/* Queue to worker thread to process */
lpfc_mbox_cmpl_put(phba, pmb);
}
}
} else
spin_unlock_irqrestore(&phba->hbalock, iflag);
if ((work_ha_copy & HA_MBATT) &&
(phba->sli.mbox_active == NULL)) {
send_current_mbox:
/* Process next mailbox command if there is one */
do {
rc = lpfc_sli_issue_mbox(phba, NULL,
MBX_NOWAIT);
} while (rc == MBX_NOT_FINISHED);
if (rc != MBX_SUCCESS)
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"0349 rc should be "
"MBX_SUCCESS\n");
}
spin_lock_irqsave(&phba->hbalock, iflag);
phba->work_ha |= work_ha_copy;
spin_unlock_irqrestore(&phba->hbalock, iflag);
lpfc_worker_wake_up(phba);
}
return IRQ_HANDLED;
unplug_error:
spin_unlock_irqrestore(&phba->hbalock, iflag);
return IRQ_HANDLED;
} /* lpfc_sli_sp_intr_handler */
/**
* lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
* This function is directly called from the PCI layer as an interrupt
* service routine when device with SLI-3 interface spec is enabled with
* MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
* ring event in the HBA. However, when the device is enabled with either
* MSI or Pin-IRQ interrupt mode, this function is called as part of the
* device-level interrupt handler. When the PCI slot is in error recovery
* or the HBA is undergoing initialization, the interrupt handler will not
* process the interrupt. The SCSI FCP fast-path ring event are handled in
* the intrrupt context. This function is called without any lock held.
* It gets the hbalock to access and update SLI data structures.
*
* This function returns IRQ_HANDLED when interrupt is handled else it
* returns IRQ_NONE.
**/
irqreturn_t
lpfc_sli_fp_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
uint32_t ha_copy;
unsigned long status;
unsigned long iflag;
struct lpfc_sli_ring *pring;
/* Get the driver's phba structure from the dev_id and
* assume the HBA is not interrupting.
*/
phba = (struct lpfc_hba *) dev_id;
if (unlikely(!phba))
return IRQ_NONE;
/*
* Stuff needs to be attented to when this function is invoked as an
* individual interrupt handler in MSI-X multi-message interrupt mode
*/
if (phba->intr_type == MSIX) {
/* Check device state for handling interrupt */
if (lpfc_intr_state_check(phba))
return IRQ_NONE;
/* Need to read HA REG for FCP ring and other ring events */
if (lpfc_readl(phba->HAregaddr, &ha_copy))
return IRQ_HANDLED;
/* Clear up only attention source related to fast-path */
spin_lock_irqsave(&phba->hbalock, iflag);
/*
* If there is deferred error attention, do not check for
* any interrupt.
*/
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
return IRQ_NONE;
}
writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
spin_unlock_irqrestore(&phba->hbalock, iflag);
} else
ha_copy = phba->ha_copy;
/*
* Process all events on FCP ring. Take the optimized path for FCP IO.
*/
ha_copy &= ~(phba->work_ha_mask);
status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
status >>= (4*LPFC_FCP_RING);
pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
if (status & HA_RXMASK)
lpfc_sli_handle_fast_ring_event(phba, pring, status);
if (phba->cfg_multi_ring_support == 2) {
/*
* Process all events on extra ring. Take the optimized path
* for extra ring IO.
*/
status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
status >>= (4*LPFC_EXTRA_RING);
if (status & HA_RXMASK) {
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.sli3_ring[LPFC_EXTRA_RING],
status);
}
}
return IRQ_HANDLED;
} /* lpfc_sli_fp_intr_handler */
/**
* lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
* This function is the HBA device-level interrupt handler to device with
* SLI-3 interface spec, called from the PCI layer when either MSI or
* Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
* requires driver attention. This function invokes the slow-path interrupt
* attention handling function and fast-path interrupt attention handling
* function in turn to process the relevant HBA attention events. This
* function is called without any lock held. It gets the hbalock to access
* and update SLI data structures.
*
* This function returns IRQ_HANDLED when interrupt is handled, else it
* returns IRQ_NONE.
**/
irqreturn_t
lpfc_sli_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
irqreturn_t sp_irq_rc, fp_irq_rc;
unsigned long status1, status2;
uint32_t hc_copy;
/*
* Get the driver's phba structure from the dev_id and
* assume the HBA is not interrupting.
*/
phba = (struct lpfc_hba *) dev_id;
if (unlikely(!phba))
return IRQ_NONE;
/* Check device state for handling interrupt */
if (lpfc_intr_state_check(phba))
return IRQ_NONE;
spin_lock(&phba->hbalock);
if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
spin_unlock(&phba->hbalock);
return IRQ_HANDLED;
}
if (unlikely(!phba->ha_copy)) {
spin_unlock(&phba->hbalock);
return IRQ_NONE;
} else if (phba->ha_copy & HA_ERATT) {
if (phba->hba_flag & HBA_ERATT_HANDLED)
/* ERATT polling has handled ERATT */
phba->ha_copy &= ~HA_ERATT;
else
/* Indicate interrupt handler handles ERATT */
phba->hba_flag |= HBA_ERATT_HANDLED;
}
/*
* If there is deferred error attention, do not check for any interrupt.
*/
if (unlikely(phba->hba_flag & DEFER_ERATT)) {
spin_unlock(&phba->hbalock);
return IRQ_NONE;
}
/* Clear attention sources except link and error attentions */
if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
spin_unlock(&phba->hbalock);
return IRQ_HANDLED;
}
writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
| HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
phba->HCregaddr);
writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
writel(hc_copy, phba->HCregaddr);
readl(phba->HAregaddr); /* flush */
spin_unlock(&phba->hbalock);
/*
* Invokes slow-path host attention interrupt handling as appropriate.
*/
/* status of events with mailbox and link attention */
status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
/* status of events with ELS ring */
status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
status2 >>= (4*LPFC_ELS_RING);
if (status1 || (status2 & HA_RXMASK))
sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
else
sp_irq_rc = IRQ_NONE;
/*
* Invoke fast-path host attention interrupt handling as appropriate.
*/
/* status of events with FCP ring */
status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
status1 >>= (4*LPFC_FCP_RING);
/* status of events with extra ring */
if (phba->cfg_multi_ring_support == 2) {
status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
status2 >>= (4*LPFC_EXTRA_RING);
} else
status2 = 0;
if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
else
fp_irq_rc = IRQ_NONE;
/* Return device-level interrupt handling status */
return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
} /* lpfc_sli_intr_handler */
/**
* lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked by the worker thread to process all the pending
* SLI4 els abort xri events.
**/
void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
{
struct lpfc_cq_event *cq_event;
unsigned long iflags;
/* First, declare the els xri abort event has been handled */
spin_lock_irqsave(&phba->hbalock, iflags);
phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Now, handle all the els xri abort events */
spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
/* Get the first event from the head of the event queue */
list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
cq_event, struct lpfc_cq_event, list);
spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock,
iflags);
/* Notify aborted XRI for ELS work queue */
lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
/* Free the event processed back to the free pool */
lpfc_sli4_cq_event_release(phba, cq_event);
spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock,
iflags);
}
spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
}
/**
* lpfc_sli4_els_preprocess_rspiocbq - Get response iocbq from els wcqe
* @phba: Pointer to HBA context object.
* @irspiocbq: Pointer to work-queue completion queue entry.
*
* This routine handles an ELS work-queue completion event and construct
* a pseudo response ELS IOCBQ from the SLI4 ELS WCQE for the common
* discovery engine to handle.
*
* Return: Pointer to the receive IOCBQ, NULL otherwise.
**/
static struct lpfc_iocbq *
lpfc_sli4_els_preprocess_rspiocbq(struct lpfc_hba *phba,
struct lpfc_iocbq *irspiocbq)
{
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *cmdiocbq;
struct lpfc_wcqe_complete *wcqe;
unsigned long iflags;
pring = lpfc_phba_elsring(phba);
if (unlikely(!pring))
return NULL;
wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
spin_lock_irqsave(&pring->ring_lock, iflags);
pring->stats.iocb_event++;
/* Look up the ELS command IOCB and create pseudo response IOCB */
cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
bf_get(lpfc_wcqe_c_request_tag, wcqe));
if (unlikely(!cmdiocbq)) {
spin_unlock_irqrestore(&pring->ring_lock, iflags);
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0386 ELS complete with no corresponding "
"cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
wcqe->word0, wcqe->total_data_placed,
wcqe->parameter, wcqe->word3);
lpfc_sli_release_iocbq(phba, irspiocbq);
return NULL;
}
memcpy(&irspiocbq->wqe, &cmdiocbq->wqe, sizeof(union lpfc_wqe128));
memcpy(&irspiocbq->wcqe_cmpl, wcqe, sizeof(*wcqe));
/* Put the iocb back on the txcmplq */
lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
spin_lock_irqsave(&phba->hbalock, iflags);
irspiocbq->cmd_flag |= LPFC_EXCHANGE_BUSY;
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
return irspiocbq;
}
inline struct lpfc_cq_event *
lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
{
struct lpfc_cq_event *cq_event;
/* Allocate a new internal CQ_EVENT entry */
cq_event = lpfc_sli4_cq_event_alloc(phba);
if (!cq_event) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0602 Failed to alloc CQ_EVENT entry\n");
return NULL;
}
/* Move the CQE into the event */
memcpy(&cq_event->cqe, entry, size);
return cq_event;
}
/**
* lpfc_sli4_sp_handle_async_event - Handle an asynchronous event
* @phba: Pointer to HBA context object.
* @mcqe: Pointer to mailbox completion queue entry.
*
* This routine process a mailbox completion queue entry with asynchronous
* event.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
{
struct lpfc_cq_event *cq_event;
unsigned long iflags;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0392 Async Event: word0:x%x, word1:x%x, "
"word2:x%x, word3:x%x\n", mcqe->word0,
mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
if (!cq_event)
return false;
spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
/* Set the async event flag */
spin_lock_irqsave(&phba->hbalock, iflags);
phba->hba_flag |= ASYNC_EVENT;
spin_unlock_irqrestore(&phba->hbalock, iflags);
return true;
}
/**
* lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
* @phba: Pointer to HBA context object.
* @mcqe: Pointer to mailbox completion queue entry.
*
* This routine process a mailbox completion queue entry with mailbox
* completion event.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
{
uint32_t mcqe_status;
MAILBOX_t *mbox, *pmbox;
struct lpfc_mqe *mqe;
struct lpfc_vport *vport;
struct lpfc_nodelist *ndlp;
struct lpfc_dmabuf *mp;
unsigned long iflags;
LPFC_MBOXQ_t *pmb;
bool workposted = false;
int rc;
/* If not a mailbox complete MCQE, out by checking mailbox consume */
if (!bf_get(lpfc_trailer_completed, mcqe))
goto out_no_mqe_complete;
/* Get the reference to the active mbox command */
spin_lock_irqsave(&phba->hbalock, iflags);
pmb = phba->sli.mbox_active;
if (unlikely(!pmb)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1832 No pending MBOX command to handle\n");
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto out_no_mqe_complete;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
mqe = &pmb->u.mqe;
pmbox = (MAILBOX_t *)&pmb->u.mqe;
mbox = phba->mbox;
vport = pmb->vport;
/* Reset heartbeat timer */
phba->last_completion_time = jiffies;
del_timer(&phba->sli.mbox_tmo);
/* Move mbox data to caller's mailbox region, do endian swapping */
if (pmb->mbox_cmpl && mbox)
lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
/*
* For mcqe errors, conditionally move a modified error code to
* the mbox so that the error will not be missed.
*/
mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
bf_set(lpfc_mqe_status, mqe,
(LPFC_MBX_ERROR_RANGE | mcqe_status));
}
if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
"MBOX dflt rpi: status:x%x rpi:x%x",
mcqe_status,
pmbox->un.varWords[0], 0);
if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
/* Reg_LOGIN of dflt RPI was successful. Mark the
* node as having an UNREG_LOGIN in progress to stop
* an unsolicited PLOGI from the same NPortId from
* starting another mailbox transaction.
*/
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->nlp_flag |= NLP_UNREG_INP;
spin_unlock_irqrestore(&ndlp->lock, iflags);
lpfc_unreg_login(phba, vport->vpi,
pmbox->un.varWords[0], pmb);
pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
pmb->ctx_buf = mp;
/* No reference taken here. This is a default
* RPI reg/immediate unreg cycle. The reference was
* taken in the reg rpi path and is released when
* this mailbox completes.
*/
pmb->ctx_ndlp = ndlp;
pmb->vport = vport;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc != MBX_BUSY)
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"0385 rc should "
"have been MBX_BUSY\n");
if (rc != MBX_NOT_FINISHED)
goto send_current_mbox;
}
}
spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
/* Do NOT queue MBX_HEARTBEAT to the worker thread for processing. */
if (pmbox->mbxCommand == MBX_HEARTBEAT) {
spin_lock_irqsave(&phba->hbalock, iflags);
/* Release the mailbox command posting token */
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
phba->sli.mbox_active = NULL;
if (bf_get(lpfc_trailer_consumed, mcqe))
lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Post the next mbox command, if there is one */
lpfc_sli4_post_async_mbox(phba);
/* Process cmpl now */
if (pmb->mbox_cmpl)
pmb->mbox_cmpl(phba, pmb);
return false;
}
/* There is mailbox completion work to queue to the worker thread */
spin_lock_irqsave(&phba->hbalock, iflags);
__lpfc_mbox_cmpl_put(phba, pmb);
phba->work_ha |= HA_MBATT;
spin_unlock_irqrestore(&phba->hbalock, iflags);
workposted = true;
send_current_mbox:
spin_lock_irqsave(&phba->hbalock, iflags);
/* Release the mailbox command posting token */
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
/* Setting active mailbox pointer need to be in sync to flag clear */
phba->sli.mbox_active = NULL;
if (bf_get(lpfc_trailer_consumed, mcqe))
lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Wake up worker thread to post the next pending mailbox command */
lpfc_worker_wake_up(phba);
return workposted;
out_no_mqe_complete:
spin_lock_irqsave(&phba->hbalock, iflags);
if (bf_get(lpfc_trailer_consumed, mcqe))
lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return false;
}
/**
* lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
* @phba: Pointer to HBA context object.
* @cq: Pointer to associated CQ
* @cqe: Pointer to mailbox completion queue entry.
*
* This routine process a mailbox completion queue entry, it invokes the
* proper mailbox complete handling or asynchronous event handling routine
* according to the MCQE's async bit.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_cqe *cqe)
{
struct lpfc_mcqe mcqe;
bool workposted;
cq->CQ_mbox++;
/* Copy the mailbox MCQE and convert endian order as needed */
lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
/* Invoke the proper event handling routine */
if (!bf_get(lpfc_trailer_async, &mcqe))
workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
else
workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
return workposted;
}
/**
* lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
* @phba: Pointer to HBA context object.
* @cq: Pointer to associated CQ
* @wcqe: Pointer to work-queue completion queue entry.
*
* This routine handles an ELS work-queue completion event.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_wcqe_complete *wcqe)
{
struct lpfc_iocbq *irspiocbq;
unsigned long iflags;
struct lpfc_sli_ring *pring = cq->pring;
int txq_cnt = 0;
int txcmplq_cnt = 0;
/* Check for response status */
if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
/* Log the error status */
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0357 ELS CQE error: status=x%x: "
"CQE: %08x %08x %08x %08x\n",
bf_get(lpfc_wcqe_c_status, wcqe),
wcqe->word0, wcqe->total_data_placed,
wcqe->parameter, wcqe->word3);
}
/* Get an irspiocbq for later ELS response processing use */
irspiocbq = lpfc_sli_get_iocbq(phba);
if (!irspiocbq) {
if (!list_empty(&pring->txq))
txq_cnt++;
if (!list_empty(&pring->txcmplq))
txcmplq_cnt++;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
"els_txcmplq_cnt=%d\n",
txq_cnt, phba->iocb_cnt,
txcmplq_cnt);
return false;
}
/* Save off the slow-path queue event for work thread to process */
memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
spin_lock_irqsave(&phba->hbalock, iflags);
list_add_tail(&irspiocbq->cq_event.list,
&phba->sli4_hba.sp_queue_event);
phba->hba_flag |= HBA_SP_QUEUE_EVT;
spin_unlock_irqrestore(&phba->hbalock, iflags);
return true;
}
/**
* lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
* @phba: Pointer to HBA context object.
* @wcqe: Pointer to work-queue completion queue entry.
*
* This routine handles slow-path WQ entry consumed event by invoking the
* proper WQ release routine to the slow-path WQ.
**/
static void
lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
struct lpfc_wcqe_release *wcqe)
{
/* sanity check on queue memory */
if (unlikely(!phba->sli4_hba.els_wq))
return;
/* Check for the slow-path ELS work queue */
if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
bf_get(lpfc_wcqe_r_wqe_index, wcqe));
else
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"2579 Slow-path wqe consume event carries "
"miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
bf_get(lpfc_wcqe_r_wqe_index, wcqe),
phba->sli4_hba.els_wq->queue_id);
}
/**
* lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
* @phba: Pointer to HBA context object.
* @cq: Pointer to a WQ completion queue.
* @wcqe: Pointer to work-queue completion queue entry.
*
* This routine handles an XRI abort event.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
struct lpfc_queue *cq,
struct sli4_wcqe_xri_aborted *wcqe)
{
bool workposted = false;
struct lpfc_cq_event *cq_event;
unsigned long iflags;
switch (cq->subtype) {
case LPFC_IO:
lpfc_sli4_io_xri_aborted(phba, wcqe, cq->hdwq);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
/* Notify aborted XRI for NVME work queue */
if (phba->nvmet_support)
lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
}
workposted = false;
break;
case LPFC_NVME_LS: /* NVME LS uses ELS resources */
case LPFC_ELS:
cq_event = lpfc_cq_event_setup(phba, wcqe, sizeof(*wcqe));
if (!cq_event) {
workposted = false;
break;
}
cq_event->hdwq = cq->hdwq;
spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock,
iflags);
list_add_tail(&cq_event->list,
&phba->sli4_hba.sp_els_xri_aborted_work_queue);
/* Set the els xri abort event flag */
phba->hba_flag |= ELS_XRI_ABORT_EVENT;
spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock,
iflags);
workposted = true;
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0603 Invalid CQ subtype %d: "
"%08x %08x %08x %08x\n",
cq->subtype, wcqe->word0, wcqe->parameter,
wcqe->word2, wcqe->word3);
workposted = false;
break;
}
return workposted;
}
#define FC_RCTL_MDS_DIAGS 0xF4
/**
* lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
* @phba: Pointer to HBA context object.
* @rcqe: Pointer to receive-queue completion queue entry.
*
* This routine process a receive-queue completion queue entry.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
{
bool workposted = false;
struct fc_frame_header *fc_hdr;
struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
struct lpfc_nvmet_tgtport *tgtp;
struct hbq_dmabuf *dma_buf;
uint32_t status, rq_id;
unsigned long iflags;
/* sanity check on queue memory */
if (unlikely(!hrq) || unlikely(!drq))
return workposted;
if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
else
rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
if (rq_id != hrq->queue_id)
goto out;
status = bf_get(lpfc_rcqe_status, rcqe);
switch (status) {
case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2537 Receive Frame Truncated!!\n");
fallthrough;
case FC_STATUS_RQ_SUCCESS:
spin_lock_irqsave(&phba->hbalock, iflags);
lpfc_sli4_rq_release(hrq, drq);
dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
if (!dma_buf) {
hrq->RQ_no_buf_found++;
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto out;
}
hrq->RQ_rcv_buf++;
hrq->RQ_buf_posted--;
memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Handle MDS Loopback frames */
if (!(phba->pport->load_flag & FC_UNLOADING))
lpfc_sli4_handle_mds_loopback(phba->pport,
dma_buf);
else
lpfc_in_buf_free(phba, &dma_buf->dbuf);
break;
}
/* save off the frame for the work thread to process */
list_add_tail(&dma_buf->cq_event.list,
&phba->sli4_hba.sp_queue_event);
/* Frame received */
phba->hba_flag |= HBA_SP_QUEUE_EVT;
spin_unlock_irqrestore(&phba->hbalock, iflags);
workposted = true;
break;
case FC_STATUS_INSUFF_BUF_FRM_DISC:
if (phba->nvmet_support) {
tgtp = phba->targetport->private;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6402 RQE Error x%x, posted %d err_cnt "
"%d: %x %x %x\n",
status, hrq->RQ_buf_posted,
hrq->RQ_no_posted_buf,
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_out),
atomic_read(&tgtp->xmt_fcp_release));
}
fallthrough;
case FC_STATUS_INSUFF_BUF_NEED_BUF:
hrq->RQ_no_posted_buf++;
/* Post more buffers if possible */
spin_lock_irqsave(&phba->hbalock, iflags);
phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
spin_unlock_irqrestore(&phba->hbalock, iflags);
workposted = true;
break;
case FC_STATUS_RQ_DMA_FAILURE:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2564 RQE DMA Error x%x, x%08x x%08x x%08x "
"x%08x\n",
status, rcqe->word0, rcqe->word1,
rcqe->word2, rcqe->word3);
/* If IV set, no further recovery */
if (bf_get(lpfc_rcqe_iv, rcqe))
break;
/* recycle consumed resource */
spin_lock_irqsave(&phba->hbalock, iflags);
lpfc_sli4_rq_release(hrq, drq);
dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
if (!dma_buf) {
hrq->RQ_no_buf_found++;
spin_unlock_irqrestore(&phba->hbalock, iflags);
break;
}
hrq->RQ_rcv_buf++;
hrq->RQ_buf_posted--;
spin_unlock_irqrestore(&phba->hbalock, iflags);
lpfc_in_buf_free(phba, &dma_buf->dbuf);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2565 Unexpected RQE Status x%x, w0-3 x%08x "
"x%08x x%08x x%08x\n",
status, rcqe->word0, rcqe->word1,
rcqe->word2, rcqe->word3);
break;
}
out:
return workposted;
}
/**
* lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
* @phba: Pointer to HBA context object.
* @cq: Pointer to the completion queue.
* @cqe: Pointer to a completion queue entry.
*
* This routine process a slow-path work-queue or receive queue completion queue
* entry.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_cqe *cqe)
{
struct lpfc_cqe cqevt;
bool workposted = false;
/* Copy the work queue CQE and convert endian order if needed */
lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
/* Check and process for different type of WCQE and dispatch */
switch (bf_get(lpfc_cqe_code, &cqevt)) {
case CQE_CODE_COMPL_WQE:
/* Process the WQ/RQ complete event */
phba->last_completion_time = jiffies;
workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
(struct lpfc_wcqe_complete *)&cqevt);
break;
case CQE_CODE_RELEASE_WQE:
/* Process the WQ release event */
lpfc_sli4_sp_handle_rel_wcqe(phba,
(struct lpfc_wcqe_release *)&cqevt);
break;
case CQE_CODE_XRI_ABORTED:
/* Process the WQ XRI abort event */
phba->last_completion_time = jiffies;
workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
(struct sli4_wcqe_xri_aborted *)&cqevt);
break;
case CQE_CODE_RECEIVE:
case CQE_CODE_RECEIVE_V1:
/* Process the RQ event */
phba->last_completion_time = jiffies;
workposted = lpfc_sli4_sp_handle_rcqe(phba,
(struct lpfc_rcqe *)&cqevt);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0388 Not a valid WCQE code: x%x\n",
bf_get(lpfc_cqe_code, &cqevt));
break;
}
return workposted;
}
/**
* lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
* @phba: Pointer to HBA context object.
* @eqe: Pointer to fast-path event queue entry.
* @speq: Pointer to slow-path event queue.
*
* This routine process a event queue entry from the slow-path event queue.
* It will check the MajorCode and MinorCode to determine this is for a
* completion event on a completion queue, if not, an error shall be logged
* and just return. Otherwise, it will get to the corresponding completion
* queue and process all the entries on that completion queue, rearm the
* completion queue, and then return.
*
**/
static void
lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
struct lpfc_queue *speq)
{
struct lpfc_queue *cq = NULL, *childq;
uint16_t cqid;
int ret = 0;
/* Get the reference to the corresponding CQ */
cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
list_for_each_entry(childq, &speq->child_list, list) {
if (childq->queue_id == cqid) {
cq = childq;
break;
}
}
if (unlikely(!cq)) {
if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0365 Slow-path CQ identifier "
"(%d) does not exist\n", cqid);
return;
}
/* Save EQ associated with this CQ */
cq->assoc_qp = speq;
if (is_kdump_kernel())
ret = queue_work(phba->wq, &cq->spwork);
else
ret = queue_work_on(cq->chann, phba->wq, &cq->spwork);
if (!ret)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0390 Cannot schedule queue work "
"for CQ eqcqid=%d, cqid=%d on CPU %d\n",
cqid, cq->queue_id, raw_smp_processor_id());
}
/**
* __lpfc_sli4_process_cq - Process elements of a CQ
* @phba: Pointer to HBA context object.
* @cq: Pointer to CQ to be processed
* @handler: Routine to process each cqe
* @delay: Pointer to usdelay to set in case of rescheduling of the handler
*
* This routine processes completion queue entries in a CQ. While a valid
* queue element is found, the handler is called. During processing checks
* are made for periodic doorbell writes to let the hardware know of
* element consumption.
*
* If the max limit on cqes to process is hit, or there are no more valid
* entries, the loop stops. If we processed a sufficient number of elements,
* meaning there is sufficient load, rather than rearming and generating
* another interrupt, a cq rescheduling delay will be set. A delay of 0
* indicates no rescheduling.
*
* Returns True if work scheduled, False otherwise.
**/
static bool
__lpfc_sli4_process_cq(struct lpfc_hba *phba, struct lpfc_queue *cq,
bool (*handler)(struct lpfc_hba *, struct lpfc_queue *,
struct lpfc_cqe *), unsigned long *delay)
{
struct lpfc_cqe *cqe;
bool workposted = false;
int count = 0, consumed = 0;
bool arm = true;
/* default - no reschedule */
*delay = 0;
if (cmpxchg(&cq->queue_claimed, 0, 1) != 0)
goto rearm_and_exit;
/* Process all the entries to the CQ */
cq->q_flag = 0;
cqe = lpfc_sli4_cq_get(cq);
while (cqe) {
workposted |= handler(phba, cq, cqe);
__lpfc_sli4_consume_cqe(phba, cq, cqe);
consumed++;
if (!(++count % cq->max_proc_limit))
break;
if (!(count % cq->notify_interval)) {
phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
LPFC_QUEUE_NOARM);
consumed = 0;
cq->assoc_qp->q_flag |= HBA_EQ_DELAY_CHK;
}
if (count == LPFC_NVMET_CQ_NOTIFY)
cq->q_flag |= HBA_NVMET_CQ_NOTIFY;
cqe = lpfc_sli4_cq_get(cq);
}
if (count >= phba->cfg_cq_poll_threshold) {
*delay = 1;
arm = false;
}
/* Track the max number of CQEs processed in 1 EQ */
if (count > cq->CQ_max_cqe)
cq->CQ_max_cqe = count;
cq->assoc_qp->EQ_cqe_cnt += count;
/* Catch the no cq entry condition */
if (unlikely(count == 0))
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0369 No entry from completion queue "
"qid=%d\n", cq->queue_id);
xchg(&cq->queue_claimed, 0);
rearm_and_exit:
phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
arm ? LPFC_QUEUE_REARM : LPFC_QUEUE_NOARM);
return workposted;
}
/**
* __lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
* @cq: pointer to CQ to process
*
* This routine calls the cq processing routine with a handler specific
* to the type of queue bound to it.
*
* The CQ routine returns two values: the first is the calling status,
* which indicates whether work was queued to the background discovery
* thread. If true, the routine should wakeup the discovery thread;
* the second is the delay parameter. If non-zero, rather than rearming
* the CQ and yet another interrupt, the CQ handler should be queued so
* that it is processed in a subsequent polling action. The value of
* the delay indicates when to reschedule it.
**/
static void
__lpfc_sli4_sp_process_cq(struct lpfc_queue *cq)
{
struct lpfc_hba *phba = cq->phba;
unsigned long delay;
bool workposted = false;
int ret = 0;
/* Process and rearm the CQ */
switch (cq->type) {
case LPFC_MCQ:
workposted |= __lpfc_sli4_process_cq(phba, cq,
lpfc_sli4_sp_handle_mcqe,
&delay);
break;
case LPFC_WCQ:
if (cq->subtype == LPFC_IO)
workposted |= __lpfc_sli4_process_cq(phba, cq,
lpfc_sli4_fp_handle_cqe,
&delay);
else
workposted |= __lpfc_sli4_process_cq(phba, cq,
lpfc_sli4_sp_handle_cqe,
&delay);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0370 Invalid completion queue type (%d)\n",
cq->type);
return;
}
if (delay) {
if (is_kdump_kernel())
ret = queue_delayed_work(phba->wq, &cq->sched_spwork,
delay);
else
ret = queue_delayed_work_on(cq->chann, phba->wq,
&cq->sched_spwork, delay);
if (!ret)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0394 Cannot schedule queue work "
"for cqid=%d on CPU %d\n",
cq->queue_id, cq->chann);
}
/* wake up worker thread if there are works to be done */
if (workposted)
lpfc_worker_wake_up(phba);
}
/**
* lpfc_sli4_sp_process_cq - slow-path work handler when started by
* interrupt
* @work: pointer to work element
*
* translates from the work handler and calls the slow-path handler.
**/
static void
lpfc_sli4_sp_process_cq(struct work_struct *work)
{
struct lpfc_queue *cq = container_of(work, struct lpfc_queue, spwork);
__lpfc_sli4_sp_process_cq(cq);
}
/**
* lpfc_sli4_dly_sp_process_cq - slow-path work handler when started by timer
* @work: pointer to work element
*
* translates from the work handler and calls the slow-path handler.
**/
static void
lpfc_sli4_dly_sp_process_cq(struct work_struct *work)
{
struct lpfc_queue *cq = container_of(to_delayed_work(work),
struct lpfc_queue, sched_spwork);
__lpfc_sli4_sp_process_cq(cq);
}
/**
* lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
* @phba: Pointer to HBA context object.
* @cq: Pointer to associated CQ
* @wcqe: Pointer to work-queue completion queue entry.
*
* This routine process a fast-path work queue completion entry from fast-path
* event queue for FCP command response completion.
**/
static void
lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_wcqe_complete *wcqe)
{
struct lpfc_sli_ring *pring = cq->pring;
struct lpfc_iocbq *cmdiocbq;
unsigned long iflags;
/* Check for response status */
if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
/* If resource errors reported from HBA, reduce queue
* depth of the SCSI device.
*/
if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
IOSTAT_LOCAL_REJECT)) &&
((wcqe->parameter & IOERR_PARAM_MASK) ==
IOERR_NO_RESOURCES))
phba->lpfc_rampdown_queue_depth(phba);
/* Log the cmpl status */
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"0373 FCP CQE cmpl: status=x%x: "
"CQE: %08x %08x %08x %08x\n",
bf_get(lpfc_wcqe_c_status, wcqe),
wcqe->word0, wcqe->total_data_placed,
wcqe->parameter, wcqe->word3);
}
/* Look up the FCP command IOCB and create pseudo response IOCB */
spin_lock_irqsave(&pring->ring_lock, iflags);
pring->stats.iocb_event++;
cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
bf_get(lpfc_wcqe_c_request_tag, wcqe));
spin_unlock_irqrestore(&pring->ring_lock, iflags);
if (unlikely(!cmdiocbq)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0374 FCP complete with no corresponding "
"cmdiocb: iotag (%d)\n",
bf_get(lpfc_wcqe_c_request_tag, wcqe));
return;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
cmdiocbq->isr_timestamp = cq->isr_timestamp;
#endif
if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
spin_lock_irqsave(&phba->hbalock, iflags);
cmdiocbq->cmd_flag |= LPFC_EXCHANGE_BUSY;
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
if (cmdiocbq->cmd_cmpl) {
/* For FCP the flag is cleared in cmd_cmpl */
if (!(cmdiocbq->cmd_flag & LPFC_IO_FCP) &&
cmdiocbq->cmd_flag & LPFC_DRIVER_ABORTED) {
spin_lock_irqsave(&phba->hbalock, iflags);
cmdiocbq->cmd_flag &= ~LPFC_DRIVER_ABORTED;
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
/* Pass the cmd_iocb and the wcqe to the upper layer */
memcpy(&cmdiocbq->wcqe_cmpl, wcqe,
sizeof(struct lpfc_wcqe_complete));
cmdiocbq->cmd_cmpl(phba, cmdiocbq, cmdiocbq);
} else {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0375 FCP cmdiocb not callback function "
"iotag: (%d)\n",
bf_get(lpfc_wcqe_c_request_tag, wcqe));
}
}
/**
* lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
* @phba: Pointer to HBA context object.
* @cq: Pointer to completion queue.
* @wcqe: Pointer to work-queue completion queue entry.
*
* This routine handles an fast-path WQ entry consumed event by invoking the
* proper WQ release routine to the slow-path WQ.
**/
static void
lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_wcqe_release *wcqe)
{
struct lpfc_queue *childwq;
bool wqid_matched = false;
uint16_t hba_wqid;
/* Check for fast-path FCP work queue release */
hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
list_for_each_entry(childwq, &cq->child_list, list) {
if (childwq->queue_id == hba_wqid) {
lpfc_sli4_wq_release(childwq,
bf_get(lpfc_wcqe_r_wqe_index, wcqe));
if (childwq->q_flag & HBA_NVMET_WQFULL)
lpfc_nvmet_wqfull_process(phba, childwq);
wqid_matched = true;
break;
}
}
/* Report warning log message if no match found */
if (wqid_matched != true)
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"2580 Fast-path wqe consume event carries "
"miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
}
/**
* lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
* @phba: Pointer to HBA context object.
* @cq: Pointer to completion queue.
* @rcqe: Pointer to receive-queue completion queue entry.
*
* This routine process a receive-queue completion queue entry.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_rcqe *rcqe)
{
bool workposted = false;
struct lpfc_queue *hrq;
struct lpfc_queue *drq;
struct rqb_dmabuf *dma_buf;
struct fc_frame_header *fc_hdr;
struct lpfc_nvmet_tgtport *tgtp;
uint32_t status, rq_id;
unsigned long iflags;
uint32_t fctl, idx;
if ((phba->nvmet_support == 0) ||
(phba->sli4_hba.nvmet_cqset == NULL))
return workposted;
idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
drq = phba->sli4_hba.nvmet_mrq_data[idx];
/* sanity check on queue memory */
if (unlikely(!hrq) || unlikely(!drq))
return workposted;
if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
else
rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
if ((phba->nvmet_support == 0) ||
(rq_id != hrq->queue_id))
return workposted;
status = bf_get(lpfc_rcqe_status, rcqe);
switch (status) {
case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6126 Receive Frame Truncated!!\n");
fallthrough;
case FC_STATUS_RQ_SUCCESS:
spin_lock_irqsave(&phba->hbalock, iflags);
lpfc_sli4_rq_release(hrq, drq);
dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
if (!dma_buf) {
hrq->RQ_no_buf_found++;
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto out;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
hrq->RQ_rcv_buf++;
hrq->RQ_buf_posted--;
fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
/* Just some basic sanity checks on FCP Command frame */
fctl = (fc_hdr->fh_f_ctl[0] << 16 |
fc_hdr->fh_f_ctl[1] << 8 |
fc_hdr->fh_f_ctl[2]);
if (((fctl &
(FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
(FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
(fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
goto drop;
if (fc_hdr->fh_type == FC_TYPE_FCP) {
dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
lpfc_nvmet_unsol_fcp_event(
phba, idx, dma_buf, cq->isr_timestamp,
cq->q_flag & HBA_NVMET_CQ_NOTIFY);
return false;
}
drop:
lpfc_rq_buf_free(phba, &dma_buf->hbuf);
break;
case FC_STATUS_INSUFF_BUF_FRM_DISC:
if (phba->nvmet_support) {
tgtp = phba->targetport->private;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6401 RQE Error x%x, posted %d err_cnt "
"%d: %x %x %x\n",
status, hrq->RQ_buf_posted,
hrq->RQ_no_posted_buf,
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_out),
atomic_read(&tgtp->xmt_fcp_release));
}
fallthrough;
case FC_STATUS_INSUFF_BUF_NEED_BUF:
hrq->RQ_no_posted_buf++;
/* Post more buffers if possible */
break;
case FC_STATUS_RQ_DMA_FAILURE:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2575 RQE DMA Error x%x, x%08x x%08x x%08x "
"x%08x\n",
status, rcqe->word0, rcqe->word1,
rcqe->word2, rcqe->word3);
/* If IV set, no further recovery */
if (bf_get(lpfc_rcqe_iv, rcqe))
break;
/* recycle consumed resource */
spin_lock_irqsave(&phba->hbalock, iflags);
lpfc_sli4_rq_release(hrq, drq);
dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
if (!dma_buf) {
hrq->RQ_no_buf_found++;
spin_unlock_irqrestore(&phba->hbalock, iflags);
break;
}
hrq->RQ_rcv_buf++;
hrq->RQ_buf_posted--;
spin_unlock_irqrestore(&phba->hbalock, iflags);
lpfc_rq_buf_free(phba, &dma_buf->hbuf);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2576 Unexpected RQE Status x%x, w0-3 x%08x "
"x%08x x%08x x%08x\n",
status, rcqe->word0, rcqe->word1,
rcqe->word2, rcqe->word3);
break;
}
out:
return workposted;
}
/**
* lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
* @phba: adapter with cq
* @cq: Pointer to the completion queue.
* @cqe: Pointer to fast-path completion queue entry.
*
* This routine process a fast-path work queue completion entry from fast-path
* event queue for FCP command response completion.
*
* Return: true if work posted to worker thread, otherwise false.
**/
static bool
lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_cqe *cqe)
{
struct lpfc_wcqe_release wcqe;
bool workposted = false;
/* Copy the work queue CQE and convert endian order if needed */
lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
/* Check and process for different type of WCQE and dispatch */
switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
case CQE_CODE_COMPL_WQE:
case CQE_CODE_NVME_ERSP:
cq->CQ_wq++;
/* Process the WQ complete event */
phba->last_completion_time = jiffies;
if (cq->subtype == LPFC_IO || cq->subtype == LPFC_NVME_LS)
lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
(struct lpfc_wcqe_complete *)&wcqe);
break;
case CQE_CODE_RELEASE_WQE:
cq->CQ_release_wqe++;
/* Process the WQ release event */
lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
(struct lpfc_wcqe_release *)&wcqe);
break;
case CQE_CODE_XRI_ABORTED:
cq->CQ_xri_aborted++;
/* Process the WQ XRI abort event */
phba->last_completion_time = jiffies;
workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
(struct sli4_wcqe_xri_aborted *)&wcqe);
break;
case CQE_CODE_RECEIVE_V1:
case CQE_CODE_RECEIVE:
phba->last_completion_time = jiffies;
if (cq->subtype == LPFC_NVMET) {
workposted = lpfc_sli4_nvmet_handle_rcqe(
phba, cq, (struct lpfc_rcqe *)&wcqe);
}
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0144 Not a valid CQE code: x%x\n",
bf_get(lpfc_wcqe_c_code, &wcqe));
break;
}
return workposted;
}
/**
* __lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
* @cq: Pointer to CQ to be processed
*
* This routine calls the cq processing routine with the handler for
* fast path CQEs.
*
* The CQ routine returns two values: the first is the calling status,
* which indicates whether work was queued to the background discovery
* thread. If true, the routine should wakeup the discovery thread;
* the second is the delay parameter. If non-zero, rather than rearming
* the CQ and yet another interrupt, the CQ handler should be queued so
* that it is processed in a subsequent polling action. The value of
* the delay indicates when to reschedule it.
**/
static void
__lpfc_sli4_hba_process_cq(struct lpfc_queue *cq)
{
struct lpfc_hba *phba = cq->phba;
unsigned long delay;
bool workposted = false;
int ret;
/* process and rearm the CQ */
workposted |= __lpfc_sli4_process_cq(phba, cq, lpfc_sli4_fp_handle_cqe,
&delay);
if (delay) {
if (is_kdump_kernel())
ret = queue_delayed_work(phba->wq, &cq->sched_irqwork,
delay);
else
ret = queue_delayed_work_on(cq->chann, phba->wq,
&cq->sched_irqwork, delay);
if (!ret)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0367 Cannot schedule queue work "
"for cqid=%d on CPU %d\n",
cq->queue_id, cq->chann);
}
/* wake up worker thread if there are works to be done */
if (workposted)
lpfc_worker_wake_up(phba);
}
/**
* lpfc_sli4_hba_process_cq - fast-path work handler when started by
* interrupt
* @work: pointer to work element
*
* translates from the work handler and calls the fast-path handler.
**/
static void
lpfc_sli4_hba_process_cq(struct work_struct *work)
{
struct lpfc_queue *cq = container_of(work, struct lpfc_queue, irqwork);
__lpfc_sli4_hba_process_cq(cq);
}
/**
* lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
* @phba: Pointer to HBA context object.
* @eq: Pointer to the queue structure.
* @eqe: Pointer to fast-path event queue entry.
* @poll_mode: poll_mode to execute processing the cq.
*
* This routine process a event queue entry from the fast-path event queue.
* It will check the MajorCode and MinorCode to determine this is for a
* completion event on a completion queue, if not, an error shall be logged
* and just return. Otherwise, it will get to the corresponding completion
* queue and process all the entries on the completion queue, rearm the
* completion queue, and then return.
**/
static void
lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
struct lpfc_eqe *eqe, enum lpfc_poll_mode poll_mode)
{
struct lpfc_queue *cq = NULL;
uint32_t qidx = eq->hdwq;
uint16_t cqid, id;
int ret;
if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0366 Not a valid completion "
"event: majorcode=x%x, minorcode=x%x\n",
bf_get_le32(lpfc_eqe_major_code, eqe),
bf_get_le32(lpfc_eqe_minor_code, eqe));
return;
}
/* Get the reference to the corresponding CQ */
cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
/* Use the fast lookup method first */
if (cqid <= phba->sli4_hba.cq_max) {
cq = phba->sli4_hba.cq_lookup[cqid];
if (cq)
goto work_cq;
}
/* Next check for NVMET completion */
if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
/* Process NVMET unsol rcv */
cq = phba->sli4_hba.nvmet_cqset[cqid - id];
goto process_cq;
}
}
if (phba->sli4_hba.nvmels_cq &&
(cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
/* Process NVME unsol rcv */
cq = phba->sli4_hba.nvmels_cq;
}
/* Otherwise this is a Slow path event */
if (cq == NULL) {
lpfc_sli4_sp_handle_eqe(phba, eqe,
phba->sli4_hba.hdwq[qidx].hba_eq);
return;
}
process_cq:
if (unlikely(cqid != cq->queue_id)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0368 Miss-matched fast-path completion "
"queue identifier: eqcqid=%d, fcpcqid=%d\n",
cqid, cq->queue_id);
return;
}
work_cq:
#if defined(CONFIG_SCSI_LPFC_DEBUG_FS)
if (phba->ktime_on)
cq->isr_timestamp = ktime_get_ns();
else
cq->isr_timestamp = 0;
#endif
switch (poll_mode) {
case LPFC_THREADED_IRQ:
__lpfc_sli4_hba_process_cq(cq);
break;
case LPFC_QUEUE_WORK:
default:
if (is_kdump_kernel())
ret = queue_work(phba->wq, &cq->irqwork);
else
ret = queue_work_on(cq->chann, phba->wq, &cq->irqwork);
if (!ret)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0383 Cannot schedule queue work "
"for CQ eqcqid=%d, cqid=%d on CPU %d\n",
cqid, cq->queue_id,
raw_smp_processor_id());
break;
}
}
/**
* lpfc_sli4_dly_hba_process_cq - fast-path work handler when started by timer
* @work: pointer to work element
*
* translates from the work handler and calls the fast-path handler.
**/
static void
lpfc_sli4_dly_hba_process_cq(struct work_struct *work)
{
struct lpfc_queue *cq = container_of(to_delayed_work(work),
struct lpfc_queue, sched_irqwork);
__lpfc_sli4_hba_process_cq(cq);
}
/**
* lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
* This function is directly called from the PCI layer as an interrupt
* service routine when device with SLI-4 interface spec is enabled with
* MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
* ring event in the HBA. However, when the device is enabled with either
* MSI or Pin-IRQ interrupt mode, this function is called as part of the
* device-level interrupt handler. When the PCI slot is in error recovery
* or the HBA is undergoing initialization, the interrupt handler will not
* process the interrupt. The SCSI FCP fast-path ring event are handled in
* the intrrupt context. This function is called without any lock held.
* It gets the hbalock to access and update SLI data structures. Note that,
* the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
* equal to that of FCP CQ index.
*
* The link attention and ELS ring attention events are handled
* by the worker thread. The interrupt handler signals the worker thread
* and returns for these events. This function is called without any lock
* held. It gets the hbalock to access and update SLI data structures.
*
* This function returns IRQ_HANDLED when interrupt is handled, IRQ_WAKE_THREAD
* when interrupt is scheduled to be handled from a threaded irq context, or
* else returns IRQ_NONE.
**/
irqreturn_t
lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
struct lpfc_hba_eq_hdl *hba_eq_hdl;
struct lpfc_queue *fpeq;
unsigned long iflag;
int hba_eqidx;
int ecount = 0;
struct lpfc_eq_intr_info *eqi;
/* Get the driver's phba structure from the dev_id */
hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
phba = hba_eq_hdl->phba;
hba_eqidx = hba_eq_hdl->idx;
if (unlikely(!phba))
return IRQ_NONE;
if (unlikely(!phba->sli4_hba.hdwq))
return IRQ_NONE;
/* Get to the EQ struct associated with this vector */
fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
if (unlikely(!fpeq))
return IRQ_NONE;
/* Check device state for handling interrupt */
if (unlikely(lpfc_intr_state_check(phba))) {
/* Check again for link_state with lock held */
spin_lock_irqsave(&phba->hbalock, iflag);
if (phba->link_state < LPFC_LINK_DOWN)
/* Flush, clear interrupt, and rearm the EQ */
lpfc_sli4_eqcq_flush(phba, fpeq);
spin_unlock_irqrestore(&phba->hbalock, iflag);
return IRQ_NONE;
}
switch (fpeq->poll_mode) {
case LPFC_THREADED_IRQ:
/* CGN mgmt is mutually exclusive from irq processing */
if (phba->cmf_active_mode == LPFC_CFG_OFF)
return IRQ_WAKE_THREAD;
fallthrough;
case LPFC_QUEUE_WORK:
default:
eqi = this_cpu_ptr(phba->sli4_hba.eq_info);
eqi->icnt++;
fpeq->last_cpu = raw_smp_processor_id();
if (eqi->icnt > LPFC_EQD_ISR_TRIGGER &&
fpeq->q_flag & HBA_EQ_DELAY_CHK &&
phba->cfg_auto_imax &&
fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
lpfc_sli4_mod_hba_eq_delay(phba, fpeq,
LPFC_MAX_AUTO_EQ_DELAY);
/* process and rearm the EQ */
ecount = lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM,
LPFC_QUEUE_WORK);
if (unlikely(ecount == 0)) {
fpeq->EQ_no_entry++;
if (phba->intr_type == MSIX)
/* MSI-X treated interrupt served as no EQ share INT */
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0358 MSI-X interrupt with no EQE\n");
else
/* Non MSI-X treated on interrupt as EQ share INT */
return IRQ_NONE;
}
}
return IRQ_HANDLED;
} /* lpfc_sli4_hba_intr_handler */
/**
* lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
* This function is the device-level interrupt handler to device with SLI-4
* interface spec, called from the PCI layer when either MSI or Pin-IRQ
* interrupt mode is enabled and there is an event in the HBA which requires
* driver attention. This function invokes the slow-path interrupt attention
* handling function and fast-path interrupt attention handling function in
* turn to process the relevant HBA attention events. This function is called
* without any lock held. It gets the hbalock to access and update SLI data
* structures.
*
* This function returns IRQ_HANDLED when interrupt is handled, else it
* returns IRQ_NONE.
**/
irqreturn_t
lpfc_sli4_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
irqreturn_t hba_irq_rc;
bool hba_handled = false;
int qidx;
/* Get the driver's phba structure from the dev_id */
phba = (struct lpfc_hba *)dev_id;
if (unlikely(!phba))
return IRQ_NONE;
/*
* Invoke fast-path host attention interrupt handling as appropriate.
*/
for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
&phba->sli4_hba.hba_eq_hdl[qidx]);
if (hba_irq_rc == IRQ_HANDLED)
hba_handled |= true;
}
return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
} /* lpfc_sli4_intr_handler */
void lpfc_sli4_poll_hbtimer(struct timer_list *t)
{
struct lpfc_hba *phba = from_timer(phba, t, cpuhp_poll_timer);
struct lpfc_queue *eq;
rcu_read_lock();
list_for_each_entry_rcu(eq, &phba->poll_list, _poll_list)
lpfc_sli4_poll_eq(eq);
if (!list_empty(&phba->poll_list))
mod_timer(&phba->cpuhp_poll_timer,
jiffies + msecs_to_jiffies(LPFC_POLL_HB));
rcu_read_unlock();
}
static inline void lpfc_sli4_add_to_poll_list(struct lpfc_queue *eq)
{
struct lpfc_hba *phba = eq->phba;
/* kickstart slowpath processing if needed */
if (list_empty(&phba->poll_list))
mod_timer(&phba->cpuhp_poll_timer,
jiffies + msecs_to_jiffies(LPFC_POLL_HB));
list_add_rcu(&eq->_poll_list, &phba->poll_list);
synchronize_rcu();
}
static inline void lpfc_sli4_remove_from_poll_list(struct lpfc_queue *eq)
{
struct lpfc_hba *phba = eq->phba;
/* Disable slowpath processing for this eq. Kick start the eq
* by RE-ARMING the eq's ASAP
*/
list_del_rcu(&eq->_poll_list);
synchronize_rcu();
if (list_empty(&phba->poll_list))
del_timer_sync(&phba->cpuhp_poll_timer);
}
void lpfc_sli4_cleanup_poll_list(struct lpfc_hba *phba)
{
struct lpfc_queue *eq, *next;
list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list)
list_del(&eq->_poll_list);
INIT_LIST_HEAD(&phba->poll_list);
synchronize_rcu();
}
static inline void
__lpfc_sli4_switch_eqmode(struct lpfc_queue *eq, uint8_t mode)
{
if (mode == eq->mode)
return;
/*
* currently this function is only called during a hotplug
* event and the cpu on which this function is executing
* is going offline. By now the hotplug has instructed
* the scheduler to remove this cpu from cpu active mask.
* So we don't need to work about being put aside by the
* scheduler for a high priority process. Yes, the inte-
* rrupts could come but they are known to retire ASAP.
*/
/* Disable polling in the fastpath */
WRITE_ONCE(eq->mode, mode);
/* flush out the store buffer */
smp_wmb();
/*
* Add this eq to the polling list and start polling. For
* a grace period both interrupt handler and poller will
* try to process the eq _but_ that's fine. We have a
* synchronization mechanism in place (queue_claimed) to
* deal with it. This is just a draining phase for int-
* errupt handler (not eq's) as we have guranteed through
* barrier that all the CPUs have seen the new CQ_POLLED
* state. which will effectively disable the REARMING of
* the EQ. The whole idea is eq's die off eventually as
* we are not rearming EQ's anymore.
*/
mode ? lpfc_sli4_add_to_poll_list(eq) :
lpfc_sli4_remove_from_poll_list(eq);
}
void lpfc_sli4_start_polling(struct lpfc_queue *eq)
{
__lpfc_sli4_switch_eqmode(eq, LPFC_EQ_POLL);
}
void lpfc_sli4_stop_polling(struct lpfc_queue *eq)
{
struct lpfc_hba *phba = eq->phba;
__lpfc_sli4_switch_eqmode(eq, LPFC_EQ_INTERRUPT);
/* Kick start for the pending io's in h/w.
* Once we switch back to interrupt processing on a eq
* the io path completion will only arm eq's when it
* receives a completion. But since eq's are in disa-
* rmed state it doesn't receive a completion. This
* creates a deadlock scenaro.
*/
phba->sli4_hba.sli4_write_eq_db(phba, eq, 0, LPFC_QUEUE_REARM);
}
/**
* lpfc_sli4_queue_free - free a queue structure and associated memory
* @queue: The queue structure to free.
*
* This function frees a queue structure and the DMAable memory used for
* the host resident queue. This function must be called after destroying the
* queue on the HBA.
**/
void
lpfc_sli4_queue_free(struct lpfc_queue *queue)
{
struct lpfc_dmabuf *dmabuf;
if (!queue)
return;
if (!list_empty(&queue->wq_list))
list_del(&queue->wq_list);
while (!list_empty(&queue->page_list)) {
list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
list);
dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
}
if (queue->rqbp) {
lpfc_free_rq_buffer(queue->phba, queue);
kfree(queue->rqbp);
}
if (!list_empty(&queue->cpu_list))
list_del(&queue->cpu_list);
kfree(queue);
return;
}
/**
* lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
* @phba: The HBA that this queue is being created on.
* @page_size: The size of a queue page
* @entry_size: The size of each queue entry for this queue.
* @entry_count: The number of entries that this queue will handle.
* @cpu: The cpu that will primarily utilize this queue.
*
* This function allocates a queue structure and the DMAable memory used for
* the host resident queue. This function must be called before creating the
* queue on the HBA.
**/
struct lpfc_queue *
lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
uint32_t entry_size, uint32_t entry_count, int cpu)
{
struct lpfc_queue *queue;
struct lpfc_dmabuf *dmabuf;
uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
uint16_t x, pgcnt;
if (!phba->sli4_hba.pc_sli4_params.supported)
hw_page_size = page_size;
pgcnt = ALIGN(entry_size * entry_count, hw_page_size) / hw_page_size;
/* If needed, Adjust page count to match the max the adapter supports */
if (pgcnt > phba->sli4_hba.pc_sli4_params.wqpcnt)
pgcnt = phba->sli4_hba.pc_sli4_params.wqpcnt;
queue = kzalloc_node(sizeof(*queue) + (sizeof(void *) * pgcnt),
GFP_KERNEL, cpu_to_node(cpu));
if (!queue)
return NULL;
INIT_LIST_HEAD(&queue->list);
INIT_LIST_HEAD(&queue->_poll_list);
INIT_LIST_HEAD(&queue->wq_list);
INIT_LIST_HEAD(&queue->wqfull_list);
INIT_LIST_HEAD(&queue->page_list);
INIT_LIST_HEAD(&queue->child_list);
INIT_LIST_HEAD(&queue->cpu_list);
/* Set queue parameters now. If the system cannot provide memory
* resources, the free routine needs to know what was allocated.
*/
queue->page_count = pgcnt;
queue->q_pgs = (void **)&queue[1];
queue->entry_cnt_per_pg = hw_page_size / entry_size;
queue->entry_size = entry_size;
queue->entry_count = entry_count;
queue->page_size = hw_page_size;
queue->phba = phba;
for (x = 0; x < queue->page_count; x++) {
dmabuf = kzalloc_node(sizeof(*dmabuf), GFP_KERNEL,
dev_to_node(&phba->pcidev->dev));
if (!dmabuf)
goto out_fail;
dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
hw_page_size, &dmabuf->phys,
GFP_KERNEL);
if (!dmabuf->virt) {
kfree(dmabuf);
goto out_fail;
}
dmabuf->buffer_tag = x;
list_add_tail(&dmabuf->list, &queue->page_list);
/* use lpfc_sli4_qe to index a paritcular entry in this page */
queue->q_pgs[x] = dmabuf->virt;
}
INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
INIT_DELAYED_WORK(&queue->sched_irqwork, lpfc_sli4_dly_hba_process_cq);
INIT_DELAYED_WORK(&queue->sched_spwork, lpfc_sli4_dly_sp_process_cq);
/* notify_interval will be set during q creation */
return queue;
out_fail:
lpfc_sli4_queue_free(queue);
return NULL;
}
/**
* lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
* @phba: HBA structure that indicates port to create a queue on.
* @pci_barset: PCI BAR set flag.
*
* This function shall perform iomap of the specified PCI BAR address to host
* memory address if not already done so and return it. The returned host
* memory address can be NULL.
*/
static void __iomem *
lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
{
if (!phba->pcidev)
return NULL;
switch (pci_barset) {
case WQ_PCI_BAR_0_AND_1:
return phba->pci_bar0_memmap_p;
case WQ_PCI_BAR_2_AND_3:
return phba->pci_bar2_memmap_p;
case WQ_PCI_BAR_4_AND_5:
return phba->pci_bar4_memmap_p;
default:
break;
}
return NULL;
}
/**
* lpfc_modify_hba_eq_delay - Modify Delay Multiplier on EQs
* @phba: HBA structure that EQs are on.
* @startq: The starting EQ index to modify
* @numq: The number of EQs (consecutive indexes) to modify
* @usdelay: amount of delay
*
* This function revises the EQ delay on 1 or more EQs. The EQ delay
* is set either by writing to a register (if supported by the SLI Port)
* or by mailbox command. The mailbox command allows several EQs to be
* updated at once.
*
* The @phba struct is used to send a mailbox command to HBA. The @startq
* is used to get the starting EQ index to change. The @numq value is
* used to specify how many consecutive EQ indexes, starting at EQ index,
* are to be changed. This function is asynchronous and will wait for any
* mailbox commands to finish before returning.
*
* On success this function will return a zero. If unable to allocate
* enough memory this function will return -ENOMEM. If a mailbox command
* fails this function will return -ENXIO. Note: on ENXIO, some EQs may
* have had their delay multipler changed.
**/
void
lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
uint32_t numq, uint32_t usdelay)
{
struct lpfc_mbx_modify_eq_delay *eq_delay;
LPFC_MBOXQ_t *mbox;
struct lpfc_queue *eq;
int cnt = 0, rc, length;
uint32_t shdr_status, shdr_add_status;
uint32_t dmult;
int qidx;
union lpfc_sli4_cfg_shdr *shdr;
if (startq >= phba->cfg_irq_chann)
return;
if (usdelay > 0xFFFF) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP | LOG_NVME,
"6429 usdelay %d too large. Scaled down to "
"0xFFFF.\n", usdelay);
usdelay = 0xFFFF;
}
/* set values by EQ_DELAY register if supported */
if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
if (!eq)
continue;
lpfc_sli4_mod_hba_eq_delay(phba, eq, usdelay);
if (++cnt >= numq)
break;
}
return;
}
/* Otherwise, set values by mailbox cmd */
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6428 Failed allocating mailbox cmd buffer."
" EQ delay was not set.\n");
return;
}
length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
length, LPFC_SLI4_MBX_EMBED);
eq_delay = &mbox->u.mqe.un.eq_delay;
/* Calculate delay multiper from maximum interrupt per second */
dmult = (usdelay * LPFC_DMULT_CONST) / LPFC_SEC_TO_USEC;
if (dmult)
dmult--;
if (dmult > LPFC_DMULT_MAX)
dmult = LPFC_DMULT_MAX;
for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
if (!eq)
continue;
eq->q_mode = usdelay;
eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
eq_delay->u.request.eq[cnt].phase = 0;
eq_delay->u.request.eq[cnt].delay_multi = dmult;
if (++cnt >= numq)
break;
}
eq_delay->u.request.num_eq = cnt;
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->ctx_ndlp = NULL;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2512 MODIFY_EQ_DELAY mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
}
mempool_free(mbox, phba->mbox_mem_pool);
return;
}
/**
* lpfc_eq_create - Create an Event Queue on the HBA
* @phba: HBA structure that indicates port to create a queue on.
* @eq: The queue structure to use to create the event queue.
* @imax: The maximum interrupt per second limit.
*
* This function creates an event queue, as detailed in @eq, on a port,
* described by @phba by sending an EQ_CREATE mailbox command to the HBA.
*
* The @phba struct is used to send mailbox command to HBA. The @eq struct
* is used to get the entry count and entry size that are necessary to
* determine the number of pages to allocate and use for this queue. This
* function will send the EQ_CREATE mailbox command to the HBA to setup the
* event queue. This function is asynchronous and will wait for the mailbox
* command to finish before continuing.
*
* On success this function will return a zero. If unable to allocate enough
* memory this function will return -ENOMEM. If the queue create mailbox command
* fails this function will return -ENXIO.
**/
int
lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
{
struct lpfc_mbx_eq_create *eq_create;
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
struct lpfc_dmabuf *dmabuf;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
uint16_t dmult;
uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
/* sanity check on queue memory */
if (!eq)
return -ENODEV;
if (!phba->sli4_hba.pc_sli4_params.supported)
hw_page_size = SLI4_PAGE_SIZE;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_eq_create) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_EQ_CREATE,
length, LPFC_SLI4_MBX_EMBED);
eq_create = &mbox->u.mqe.un.eq_create;
shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
eq->page_count);
bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
LPFC_EQE_SIZE);
bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
/* Use version 2 of CREATE_EQ if eqav is set */
if (phba->sli4_hba.pc_sli4_params.eqav) {
bf_set(lpfc_mbox_hdr_version, &shdr->request,
LPFC_Q_CREATE_VERSION_2);
bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
phba->sli4_hba.pc_sli4_params.eqav);
}
/* don't setup delay multiplier using EQ_CREATE */
dmult = 0;
bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
dmult);
switch (eq->entry_count) {
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0360 Unsupported EQ count. (%d)\n",
eq->entry_count);
if (eq->entry_count < 256) {
status = -EINVAL;
goto out;
}
fallthrough; /* otherwise default to smallest count */
case 256:
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
LPFC_EQ_CNT_256);
break;
case 512:
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
LPFC_EQ_CNT_512);
break;
case 1024:
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
LPFC_EQ_CNT_1024);
break;
case 2048:
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
LPFC_EQ_CNT_2048);
break;
case 4096:
bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
LPFC_EQ_CNT_4096);
break;
}
list_for_each_entry(dmabuf, &eq->page_list, list) {
memset(dmabuf->virt, 0, hw_page_size);
eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
putPaddrLow(dmabuf->phys);
eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
putPaddrHigh(dmabuf->phys);
}
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->ctx_buf = NULL;
mbox->ctx_ndlp = NULL;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2500 EQ_CREATE mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
}
eq->type = LPFC_EQ;
eq->subtype = LPFC_NONE;
eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
if (eq->queue_id == 0xFFFF)
status = -ENXIO;
eq->host_index = 0;
eq->notify_interval = LPFC_EQ_NOTIFY_INTRVL;
eq->max_proc_limit = LPFC_EQ_MAX_PROC_LIMIT;
out:
mempool_free(mbox, phba->mbox_mem_pool);
return status;
}
/**
* lpfc_sli4_hba_intr_handler_th - SLI4 HBA threaded interrupt handler
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
* This routine is a mirror of lpfc_sli4_hba_intr_handler, but executed within
* threaded irq context.
*
* Returns
* IRQ_HANDLED - interrupt is handled
* IRQ_NONE - otherwise
**/
irqreturn_t lpfc_sli4_hba_intr_handler_th(int irq, void *dev_id)
{
struct lpfc_hba *phba;
struct lpfc_hba_eq_hdl *hba_eq_hdl;
struct lpfc_queue *fpeq;
int ecount = 0;
int hba_eqidx;
struct lpfc_eq_intr_info *eqi;
/* Get the driver's phba structure from the dev_id */
hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
phba = hba_eq_hdl->phba;
hba_eqidx = hba_eq_hdl->idx;
if (unlikely(!phba))
return IRQ_NONE;
if (unlikely(!phba->sli4_hba.hdwq))
return IRQ_NONE;
/* Get to the EQ struct associated with this vector */
fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
if (unlikely(!fpeq))
return IRQ_NONE;
eqi = per_cpu_ptr(phba->sli4_hba.eq_info, raw_smp_processor_id());
eqi->icnt++;
fpeq->last_cpu = raw_smp_processor_id();
if (eqi->icnt > LPFC_EQD_ISR_TRIGGER &&
fpeq->q_flag & HBA_EQ_DELAY_CHK &&
phba->cfg_auto_imax &&
fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
lpfc_sli4_mod_hba_eq_delay(phba, fpeq, LPFC_MAX_AUTO_EQ_DELAY);
/* process and rearm the EQ */
ecount = lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM,
LPFC_THREADED_IRQ);
if (unlikely(ecount == 0)) {
fpeq->EQ_no_entry++;
if (phba->intr_type == MSIX)
/* MSI-X treated interrupt served as no EQ share INT */
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3358 MSI-X interrupt with no EQE\n");
else
/* Non MSI-X treated on interrupt as EQ share INT */
return IRQ_NONE;
}
return IRQ_HANDLED;
}
/**
* lpfc_cq_create - Create a Completion Queue on the HBA
* @phba: HBA structure that indicates port to create a queue on.
* @cq: The queue structure to use to create the completion queue.
* @eq: The event queue to bind this completion queue to.
* @type: Type of queue (EQ, GCQ, MCQ, WCQ, etc).
* @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
*
* This function creates a completion queue, as detailed in @wq, on a port,
* described by @phba by sending a CQ_CREATE mailbox command to the HBA.
*
* The @phba struct is used to send mailbox command to HBA. The @cq struct
* is used to get the entry count and entry size that are necessary to
* determine the number of pages to allocate and use for this queue. The @eq
* is used to indicate which event queue to bind this completion queue to. This
* function will send the CQ_CREATE mailbox command to the HBA to setup the
* completion queue. This function is asynchronous and will wait for the mailbox
* command to finish before continuing.
*
* On success this function will return a zero. If unable to allocate enough
* memory this function will return -ENOMEM. If the queue create mailbox command
* fails this function will return -ENXIO.
**/
int
lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
{
struct lpfc_mbx_cq_create *cq_create;
struct lpfc_dmabuf *dmabuf;
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
/* sanity check on queue memory */
if (!cq || !eq)
return -ENODEV;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_cq_create) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_CQ_CREATE,
length, LPFC_SLI4_MBX_EMBED);
cq_create = &mbox->u.mqe.un.cq_create;
shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
cq->page_count);
bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
bf_set(lpfc_mbox_hdr_version, &shdr->request,
phba->sli4_hba.pc_sli4_params.cqv);
if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
(cq->page_size / SLI4_PAGE_SIZE));
bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
eq->queue_id);
bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
phba->sli4_hba.pc_sli4_params.cqav);
} else {
bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
eq->queue_id);
}
switch (cq->entry_count) {
case 2048:
case 4096:
if (phba->sli4_hba.pc_sli4_params.cqv ==
LPFC_Q_CREATE_VERSION_2) {
cq_create->u.request.context.lpfc_cq_context_count =
cq->entry_count;
bf_set(lpfc_cq_context_count,
&cq_create->u.request.context,
LPFC_CQ_CNT_WORD7);
break;
}
fallthrough;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0361 Unsupported CQ count: "
"entry cnt %d sz %d pg cnt %d\n",
cq->entry_count, cq->entry_size,
cq->page_count);
if (cq->entry_count < 256) {
status = -EINVAL;
goto out;
}
fallthrough; /* otherwise default to smallest count */
case 256:
bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
LPFC_CQ_CNT_256);
break;
case 512:
bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
LPFC_CQ_CNT_512);
break;
case 1024:
bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
LPFC_CQ_CNT_1024);
break;
}
list_for_each_entry(dmabuf, &cq->page_list, list) {
memset(dmabuf->virt, 0, cq->page_size);
cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
putPaddrLow(dmabuf->phys);
cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
putPaddrHigh(dmabuf->phys);
}
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2501 CQ_CREATE mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
goto out;
}
cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
if (cq->queue_id == 0xFFFF) {
status = -ENXIO;
goto out;
}
/* link the cq onto the parent eq child list */
list_add_tail(&cq->list, &eq->child_list);
/* Set up completion queue's type and subtype */
cq->type = type;
cq->subtype = subtype;
cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
cq->assoc_qid = eq->queue_id;
cq->assoc_qp = eq;
cq->host_index = 0;
cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count);
if (cq->queue_id > phba->sli4_hba.cq_max)
phba->sli4_hba.cq_max = cq->queue_id;
out:
mempool_free(mbox, phba->mbox_mem_pool);
return status;
}
/**
* lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
* @phba: HBA structure that indicates port to create a queue on.
* @cqp: The queue structure array to use to create the completion queues.
* @hdwq: The hardware queue array with the EQ to bind completion queues to.
* @type: Type of queue (EQ, GCQ, MCQ, WCQ, etc).
* @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
*
* This function creates a set of completion queue, s to support MRQ
* as detailed in @cqp, on a port,
* described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
*
* The @phba struct is used to send mailbox command to HBA. The @cq struct
* is used to get the entry count and entry size that are necessary to
* determine the number of pages to allocate and use for this queue. The @eq
* is used to indicate which event queue to bind this completion queue to. This
* function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
* completion queue. This function is asynchronous and will wait for the mailbox
* command to finish before continuing.
*
* On success this function will return a zero. If unable to allocate enough
* memory this function will return -ENOMEM. If the queue create mailbox command
* fails this function will return -ENXIO.
**/
int
lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
uint32_t subtype)
{
struct lpfc_queue *cq;
struct lpfc_queue *eq;
struct lpfc_mbx_cq_create_set *cq_set;
struct lpfc_dmabuf *dmabuf;
LPFC_MBOXQ_t *mbox;
int rc, length, alloclen, status = 0;
int cnt, idx, numcq, page_idx = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
/* sanity check on queue memory */
numcq = phba->cfg_nvmet_mrq;
if (!cqp || !hdwq || !numcq)
return -ENODEV;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = sizeof(struct lpfc_mbx_cq_create_set);
length += ((numcq * cqp[0]->page_count) *
sizeof(struct dma_address));
alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
LPFC_SLI4_MBX_NEMBED);
if (alloclen < length) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3098 Allocated DMA memory size (%d) is "
"less than the requested DMA memory size "
"(%d)\n", alloclen, length);
status = -ENOMEM;
goto out;
}
cq_set = mbox->sge_array->addr[0];
shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
for (idx = 0; idx < numcq; idx++) {
cq = cqp[idx];
eq = hdwq[idx].hba_eq;
if (!cq || !eq) {
status = -ENOMEM;
goto out;
}
if (!phba->sli4_hba.pc_sli4_params.supported)
hw_page_size = cq->page_size;
switch (idx) {
case 0:
bf_set(lpfc_mbx_cq_create_set_page_size,
&cq_set->u.request,
(hw_page_size / SLI4_PAGE_SIZE));
bf_set(lpfc_mbx_cq_create_set_num_pages,
&cq_set->u.request, cq->page_count);
bf_set(lpfc_mbx_cq_create_set_evt,
&cq_set->u.request, 1);
bf_set(lpfc_mbx_cq_create_set_valid,
&cq_set->u.request, 1);
bf_set(lpfc_mbx_cq_create_set_cqe_size,
&cq_set->u.request, 0);
bf_set(lpfc_mbx_cq_create_set_num_cq,
&cq_set->u.request, numcq);
bf_set(lpfc_mbx_cq_create_set_autovalid,
&cq_set->u.request,
phba->sli4_hba.pc_sli4_params.cqav);
switch (cq->entry_count) {
case 2048:
case 4096:
if (phba->sli4_hba.pc_sli4_params.cqv ==
LPFC_Q_CREATE_VERSION_2) {
bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
&cq_set->u.request,
cq->entry_count);
bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
&cq_set->u.request,
LPFC_CQ_CNT_WORD7);
break;
}
fallthrough;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3118 Bad CQ count. (%d)\n",
cq->entry_count);
if (cq->entry_count < 256) {
status = -EINVAL;
goto out;
}
fallthrough; /* otherwise default to smallest */
case 256:
bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
&cq_set->u.request, LPFC_CQ_CNT_256);
break;
case 512:
bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
&cq_set->u.request, LPFC_CQ_CNT_512);
break;
case 1024:
bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
&cq_set->u.request, LPFC_CQ_CNT_1024);
break;
}
bf_set(lpfc_mbx_cq_create_set_eq_id0,
&cq_set->u.request, eq->queue_id);
break;
case 1:
bf_set(lpfc_mbx_cq_create_set_eq_id1,
&cq_set->u.request, eq->queue_id);
break;
case 2:
bf_set(lpfc_mbx_cq_create_set_eq_id2,
&cq_set->u.request, eq->queue_id);
break;
case 3:
bf_set(lpfc_mbx_cq_create_set_eq_id3,
&cq_set->u.request, eq->queue_id);
break;
case 4:
bf_set(lpfc_mbx_cq_create_set_eq_id4,
&cq_set->u.request, eq->queue_id);
break;
case 5:
bf_set(lpfc_mbx_cq_create_set_eq_id5,
&cq_set->u.request, eq->queue_id);
break;
case 6:
bf_set(lpfc_mbx_cq_create_set_eq_id6,
&cq_set->u.request, eq->queue_id);
break;
case 7:
bf_set(lpfc_mbx_cq_create_set_eq_id7,
&cq_set->u.request, eq->queue_id);
break;
case 8:
bf_set(lpfc_mbx_cq_create_set_eq_id8,
&cq_set->u.request, eq->queue_id);
break;
case 9:
bf_set(lpfc_mbx_cq_create_set_eq_id9,
&cq_set->u.request, eq->queue_id);
break;
case 10:
bf_set(lpfc_mbx_cq_create_set_eq_id10,
&cq_set->u.request, eq->queue_id);
break;
case 11:
bf_set(lpfc_mbx_cq_create_set_eq_id11,
&cq_set->u.request, eq->queue_id);
break;
case 12:
bf_set(lpfc_mbx_cq_create_set_eq_id12,
&cq_set->u.request, eq->queue_id);
break;
case 13:
bf_set(lpfc_mbx_cq_create_set_eq_id13,
&cq_set->u.request, eq->queue_id);
break;
case 14:
bf_set(lpfc_mbx_cq_create_set_eq_id14,
&cq_set->u.request, eq->queue_id);
break;
case 15:
bf_set(lpfc_mbx_cq_create_set_eq_id15,
&cq_set->u.request, eq->queue_id);
break;
}
/* link the cq onto the parent eq child list */
list_add_tail(&cq->list, &eq->child_list);
/* Set up completion queue's type and subtype */
cq->type = type;
cq->subtype = subtype;
cq->assoc_qid = eq->queue_id;
cq->assoc_qp = eq;
cq->host_index = 0;
cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
cq->entry_count);
cq->chann = idx;
rc = 0;
list_for_each_entry(dmabuf, &cq->page_list, list) {
memset(dmabuf->virt, 0, hw_page_size);
cnt = page_idx + dmabuf->buffer_tag;
cq_set->u.request.page[cnt].addr_lo =
putPaddrLow(dmabuf->phys);
cq_set->u.request.page[cnt].addr_hi =
putPaddrHigh(dmabuf->phys);
rc++;
}
page_idx += rc;
}
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3119 CQ_CREATE_SET mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
goto out;
}
rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
if (rc == 0xFFFF) {
status = -ENXIO;
goto out;
}
for (idx = 0; idx < numcq; idx++) {
cq = cqp[idx];
cq->queue_id = rc + idx;
if (cq->queue_id > phba->sli4_hba.cq_max)
phba->sli4_hba.cq_max = cq->queue_id;
}
out:
lpfc_sli4_mbox_cmd_free(phba, mbox);
return status;
}
/**
* lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
* @phba: HBA structure that indicates port to create a queue on.
* @mq: The queue structure to use to create the mailbox queue.
* @mbox: An allocated pointer to type LPFC_MBOXQ_t
* @cq: The completion queue to associate with this cq.
*
* This function provides failback (fb) functionality when the
* mq_create_ext fails on older FW generations. It's purpose is identical
* to mq_create_ext otherwise.
*
* This routine cannot fail as all attributes were previously accessed and
* initialized in mq_create_ext.
**/
static void
lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
{
struct lpfc_mbx_mq_create *mq_create;
struct lpfc_dmabuf *dmabuf;
int length;
length = (sizeof(struct lpfc_mbx_mq_create) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_MQ_CREATE,
length, LPFC_SLI4_MBX_EMBED);
mq_create = &mbox->u.mqe.un.mq_create;
bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
mq->page_count);
bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
cq->queue_id);
bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
switch (mq->entry_count) {
case 16:
bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
LPFC_MQ_RING_SIZE_16);
break;
case 32:
bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
LPFC_MQ_RING_SIZE_32);
break;
case 64:
bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
LPFC_MQ_RING_SIZE_64);
break;
case 128:
bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
LPFC_MQ_RING_SIZE_128);
break;
}
list_for_each_entry(dmabuf, &mq->page_list, list) {
mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
putPaddrLow(dmabuf->phys);
mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
putPaddrHigh(dmabuf->phys);
}
}
/**
* lpfc_mq_create - Create a mailbox Queue on the HBA
* @phba: HBA structure that indicates port to create a queue on.
* @mq: The queue structure to use to create the mailbox queue.
* @cq: The completion queue to associate with this cq.
* @subtype: The queue's subtype.
*
* This function creates a mailbox queue, as detailed in @mq, on a port,
* described by @phba by sending a MQ_CREATE mailbox command to the HBA.
*
* The @phba struct is used to send mailbox command to HBA. The @cq struct
* is used to get the entry count and entry size that are necessary to
* determine the number of pages to allocate and use for this queue. This
* function will send the MQ_CREATE mailbox command to the HBA to setup the
* mailbox queue. This function is asynchronous and will wait for the mailbox
* command to finish before continuing.
*
* On success this function will return a zero. If unable to allocate enough
* memory this function will return -ENOMEM. If the queue create mailbox command
* fails this function will return -ENXIO.
**/
int32_t
lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
struct lpfc_queue *cq, uint32_t subtype)
{
struct lpfc_mbx_mq_create *mq_create;
struct lpfc_mbx_mq_create_ext *mq_create_ext;
struct lpfc_dmabuf *dmabuf;
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
/* sanity check on queue memory */
if (!mq || !cq)
return -ENODEV;
if (!phba->sli4_hba.pc_sli4_params.supported)
hw_page_size = SLI4_PAGE_SIZE;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_mq_create_ext) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
length, LPFC_SLI4_MBX_EMBED);
mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
bf_set(lpfc_mbx_mq_create_ext_num_pages,
&mq_create_ext->u.request, mq->page_count);
bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
&mq_create_ext->u.request, 1);
bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
&mq_create_ext->u.request, 1);
bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
&mq_create_ext->u.request, 1);
bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
&mq_create_ext->u.request, 1);
bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
&mq_create_ext->u.request, 1);
bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
bf_set(lpfc_mbox_hdr_version, &shdr->request,
phba->sli4_hba.pc_sli4_params.mqv);
if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
cq->queue_id);
else
bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
cq->queue_id);
switch (mq->entry_count) {
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0362 Unsupported MQ count. (%d)\n",
mq->entry_count);
if (mq->entry_count < 16) {
status = -EINVAL;
goto out;
}
fallthrough; /* otherwise default to smallest count */
case 16:
bf_set(lpfc_mq_context_ring_size,
&mq_create_ext->u.request.context,
LPFC_MQ_RING_SIZE_16);
break;
case 32:
bf_set(lpfc_mq_context_ring_size,
&mq_create_ext->u.request.context,
LPFC_MQ_RING_SIZE_32);
break;
case 64:
bf_set(lpfc_mq_context_ring_size,
&mq_create_ext->u.request.context,
LPFC_MQ_RING_SIZE_64);
break;
case 128:
bf_set(lpfc_mq_context_ring_size,
&mq_create_ext->u.request.context,
LPFC_MQ_RING_SIZE_128);
break;
}
list_for_each_entry(dmabuf, &mq->page_list, list) {
memset(dmabuf->virt, 0, hw_page_size);
mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
putPaddrLow(dmabuf->phys);
mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
putPaddrHigh(dmabuf->phys);
}
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
&mq_create_ext->u.response);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2795 MQ_CREATE_EXT failed with "
"status x%x. Failback to MQ_CREATE.\n",
rc);
lpfc_mq_create_fb_init(phba, mq, mbox, cq);
mq_create = &mbox->u.mqe.un.mq_create;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
&mq_create->u.response);
}
/* The IOCTL status is embedded in the mailbox subheader. */
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2502 MQ_CREATE mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
goto out;
}
if (mq->queue_id == 0xFFFF) {
status = -ENXIO;
goto out;
}
mq->type = LPFC_MQ;
mq->assoc_qid = cq->queue_id;
mq->subtype = subtype;
mq->host_index = 0;
mq->hba_index = 0;
/* link the mq onto the parent cq child list */
list_add_tail(&mq->list, &cq->child_list);
out:
mempool_free(mbox, phba->mbox_mem_pool);
return status;
}
/**
* lpfc_wq_create - Create a Work Queue on the HBA
* @phba: HBA structure that indicates port to create a queue on.
* @wq: The queue structure to use to create the work queue.
* @cq: The completion queue to bind this work queue to.
* @subtype: The subtype of the work queue indicating its functionality.
*
* This function creates a work queue, as detailed in @wq, on a port, described
* by @phba by sending a WQ_CREATE mailbox command to the HBA.
*
* The @phba struct is used to send mailbox command to HBA. The @wq struct
* is used to get the entry count and entry size that are necessary to
* determine the number of pages to allocate and use for this queue. The @cq
* is used to indicate which completion queue to bind this work queue to. This
* function will send the WQ_CREATE mailbox command to the HBA to setup the
* work queue. This function is asynchronous and will wait for the mailbox
* command to finish before continuing.
*
* On success this function will return a zero. If unable to allocate enough
* memory this function will return -ENOMEM. If the queue create mailbox command
* fails this function will return -ENXIO.
**/
int
lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
struct lpfc_queue *cq, uint32_t subtype)
{
struct lpfc_mbx_wq_create *wq_create;
struct lpfc_dmabuf *dmabuf;
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
struct dma_address *page;
void __iomem *bar_memmap_p;
uint32_t db_offset;
uint16_t pci_barset;
uint8_t dpp_barset;
uint32_t dpp_offset;
uint8_t wq_create_version;
#ifdef CONFIG_X86
unsigned long pg_addr;
#endif
/* sanity check on queue memory */
if (!wq || !cq)
return -ENODEV;
if (!phba->sli4_hba.pc_sli4_params.supported)
hw_page_size = wq->page_size;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_wq_create) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
length, LPFC_SLI4_MBX_EMBED);
wq_create = &mbox->u.mqe.un.wq_create;
shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
wq->page_count);
bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
cq->queue_id);
/* wqv is the earliest version supported, NOT the latest */
bf_set(lpfc_mbox_hdr_version, &shdr->request,
phba->sli4_hba.pc_sli4_params.wqv);
if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
(wq->page_size > SLI4_PAGE_SIZE))
wq_create_version = LPFC_Q_CREATE_VERSION_1;
else
wq_create_version = LPFC_Q_CREATE_VERSION_0;
switch (wq_create_version) {
case LPFC_Q_CREATE_VERSION_1:
bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
wq->entry_count);
bf_set(lpfc_mbox_hdr_version, &shdr->request,
LPFC_Q_CREATE_VERSION_1);
switch (wq->entry_size) {
default:
case 64:
bf_set(lpfc_mbx_wq_create_wqe_size,
&wq_create->u.request_1,
LPFC_WQ_WQE_SIZE_64);
break;
case 128:
bf_set(lpfc_mbx_wq_create_wqe_size,
&wq_create->u.request_1,
LPFC_WQ_WQE_SIZE_128);
break;
}
/* Request DPP by default */
bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
bf_set(lpfc_mbx_wq_create_page_size,
&wq_create->u.request_1,
(wq->page_size / SLI4_PAGE_SIZE));
page = wq_create->u.request_1.page;
break;
default:
page = wq_create->u.request.page;
break;
}
list_for_each_entry(dmabuf, &wq->page_list, list) {
memset(dmabuf->virt, 0, hw_page_size);
page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
}
if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2503 WQ_CREATE mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
goto out;
}
if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
&wq_create->u.response);
else
wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
&wq_create->u.response_1);
if (wq->queue_id == 0xFFFF) {
status = -ENXIO;
goto out;
}
wq->db_format = LPFC_DB_LIST_FORMAT;
if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
&wq_create->u.response);
if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
(wq->db_format != LPFC_DB_RING_FORMAT)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3265 WQ[%d] doorbell format "
"not supported: x%x\n",
wq->queue_id, wq->db_format);
status = -EINVAL;
goto out;
}
pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
&wq_create->u.response);
bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
pci_barset);
if (!bar_memmap_p) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3263 WQ[%d] failed to memmap "
"pci barset:x%x\n",
wq->queue_id, pci_barset);
status = -ENOMEM;
goto out;
}
db_offset = wq_create->u.response.doorbell_offset;
if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
(db_offset != LPFC_ULP1_WQ_DOORBELL)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3252 WQ[%d] doorbell offset "
"not supported: x%x\n",
wq->queue_id, db_offset);
status = -EINVAL;
goto out;
}
wq->db_regaddr = bar_memmap_p + db_offset;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3264 WQ[%d]: barset:x%x, offset:x%x, "
"format:x%x\n", wq->queue_id,
pci_barset, db_offset, wq->db_format);
} else
wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
} else {
/* Check if DPP was honored by the firmware */
wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
&wq_create->u.response_1);
if (wq->dpp_enable) {
pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
&wq_create->u.response_1);
bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
pci_barset);
if (!bar_memmap_p) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3267 WQ[%d] failed to memmap "
"pci barset:x%x\n",
wq->queue_id, pci_barset);
status = -ENOMEM;
goto out;
}
db_offset = wq_create->u.response_1.doorbell_offset;
wq->db_regaddr = bar_memmap_p + db_offset;
wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
&wq_create->u.response_1);
dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
&wq_create->u.response_1);
bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
dpp_barset);
if (!bar_memmap_p) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3268 WQ[%d] failed to memmap "
"pci barset:x%x\n",
wq->queue_id, dpp_barset);
status = -ENOMEM;
goto out;
}
dpp_offset = wq_create->u.response_1.dpp_offset;
wq->dpp_regaddr = bar_memmap_p + dpp_offset;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3271 WQ[%d]: barset:x%x, offset:x%x, "
"dpp_id:x%x dpp_barset:x%x "
"dpp_offset:x%x\n",
wq->queue_id, pci_barset, db_offset,
wq->dpp_id, dpp_barset, dpp_offset);
#ifdef CONFIG_X86
/* Enable combined writes for DPP aperture */
pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
rc = set_memory_wc(pg_addr, 1);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3272 Cannot setup Combined "
"Write on WQ[%d] - disable DPP\n",
wq->queue_id);
phba->cfg_enable_dpp = 0;
}
#else
phba->cfg_enable_dpp = 0;
#endif
} else
wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
}
wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
if (wq->pring == NULL) {
status = -ENOMEM;
goto out;
}
wq->type = LPFC_WQ;
wq->assoc_qid = cq->queue_id;
wq->subtype = subtype;
wq->host_index = 0;
wq->hba_index = 0;
wq->notify_interval = LPFC_WQ_NOTIFY_INTRVL;
/* link the wq onto the parent cq child list */
list_add_tail(&wq->list, &cq->child_list);
out:
mempool_free(mbox, phba->mbox_mem_pool);
return status;
}
/**
* lpfc_rq_create - Create a Receive Queue on the HBA
* @phba: HBA structure that indicates port to create a queue on.
* @hrq: The queue structure to use to create the header receive queue.
* @drq: The queue structure to use to create the data receive queue.
* @cq: The completion queue to bind this work queue to.
* @subtype: The subtype of the work queue indicating its functionality.
*
* This function creates a receive buffer queue pair , as detailed in @hrq and
* @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
* to the HBA.
*
* The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
* struct is used to get the entry count that is necessary to determine the
* number of pages to use for this queue. The @cq is used to indicate which
* completion queue to bind received buffers that are posted to these queues to.
* This function will send the RQ_CREATE mailbox command to the HBA to setup the
* receive queue pair. This function is asynchronous and will wait for the
* mailbox command to finish before continuing.
*
* On success this function will return a zero. If unable to allocate enough
* memory this function will return -ENOMEM. If the queue create mailbox command
* fails this function will return -ENXIO.
**/
int
lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
{
struct lpfc_mbx_rq_create *rq_create;
struct lpfc_dmabuf *dmabuf;
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
void __iomem *bar_memmap_p;
uint32_t db_offset;
uint16_t pci_barset;
/* sanity check on queue memory */
if (!hrq || !drq || !cq)
return -ENODEV;
if (!phba->sli4_hba.pc_sli4_params.supported)
hw_page_size = SLI4_PAGE_SIZE;
if (hrq->entry_count != drq->entry_count)
return -EINVAL;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_rq_create) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
length, LPFC_SLI4_MBX_EMBED);
rq_create = &mbox->u.mqe.un.rq_create;
shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
bf_set(lpfc_mbox_hdr_version, &shdr->request,
phba->sli4_hba.pc_sli4_params.rqv);
if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
bf_set(lpfc_rq_context_rqe_count_1,
&rq_create->u.request.context,
hrq->entry_count);
rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
bf_set(lpfc_rq_context_rqe_size,
&rq_create->u.request.context,
LPFC_RQE_SIZE_8);
bf_set(lpfc_rq_context_page_size,
&rq_create->u.request.context,
LPFC_RQ_PAGE_SIZE_4096);
} else {
switch (hrq->entry_count) {
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2535 Unsupported RQ count. (%d)\n",
hrq->entry_count);
if (hrq->entry_count < 512) {
status = -EINVAL;
goto out;
}
fallthrough; /* otherwise default to smallest count */
case 512:
bf_set(lpfc_rq_context_rqe_count,
&rq_create->u.request.context,
LPFC_RQ_RING_SIZE_512);
break;
case 1024:
bf_set(lpfc_rq_context_rqe_count,
&rq_create->u.request.context,
LPFC_RQ_RING_SIZE_1024);
break;
case 2048:
bf_set(lpfc_rq_context_rqe_count,
&rq_create->u.request.context,
LPFC_RQ_RING_SIZE_2048);
break;
case 4096:
bf_set(lpfc_rq_context_rqe_count,
&rq_create->u.request.context,
LPFC_RQ_RING_SIZE_4096);
break;
}
bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
LPFC_HDR_BUF_SIZE);
}
bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
cq->queue_id);
bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
hrq->page_count);
list_for_each_entry(dmabuf, &hrq->page_list, list) {
memset(dmabuf->virt, 0, hw_page_size);
rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
putPaddrLow(dmabuf->phys);
rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
putPaddrHigh(dmabuf->phys);
}
if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2504 RQ_CREATE mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
goto out;
}
hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
if (hrq->queue_id == 0xFFFF) {
status = -ENXIO;
goto out;
}
if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
&rq_create->u.response);
if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
(hrq->db_format != LPFC_DB_RING_FORMAT)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3262 RQ [%d] doorbell format not "
"supported: x%x\n", hrq->queue_id,
hrq->db_format);
status = -EINVAL;
goto out;
}
pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
&rq_create->u.response);
bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
if (!bar_memmap_p) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3269 RQ[%d] failed to memmap pci "
"barset:x%x\n", hrq->queue_id,
pci_barset);
status = -ENOMEM;
goto out;
}
db_offset = rq_create->u.response.doorbell_offset;
if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
(db_offset != LPFC_ULP1_RQ_DOORBELL)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3270 RQ[%d] doorbell offset not "
"supported: x%x\n", hrq->queue_id,
db_offset);
status = -EINVAL;
goto out;
}
hrq->db_regaddr = bar_memmap_p + db_offset;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
"format:x%x\n", hrq->queue_id, pci_barset,
db_offset, hrq->db_format);
} else {
hrq->db_format = LPFC_DB_RING_FORMAT;
hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
}
hrq->type = LPFC_HRQ;
hrq->assoc_qid = cq->queue_id;
hrq->subtype = subtype;
hrq->host_index = 0;
hrq->hba_index = 0;
hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
/* now create the data queue */
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
length, LPFC_SLI4_MBX_EMBED);
bf_set(lpfc_mbox_hdr_version, &shdr->request,
phba->sli4_hba.pc_sli4_params.rqv);
if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
bf_set(lpfc_rq_context_rqe_count_1,
&rq_create->u.request.context, hrq->entry_count);
if (subtype == LPFC_NVMET)
rq_create->u.request.context.buffer_size =
LPFC_NVMET_DATA_BUF_SIZE;
else
rq_create->u.request.context.buffer_size =
LPFC_DATA_BUF_SIZE;
bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
LPFC_RQE_SIZE_8);
bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
(PAGE_SIZE/SLI4_PAGE_SIZE));
} else {
switch (drq->entry_count) {
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2536 Unsupported RQ count. (%d)\n",
drq->entry_count);
if (drq->entry_count < 512) {
status = -EINVAL;
goto out;
}
fallthrough; /* otherwise default to smallest count */
case 512:
bf_set(lpfc_rq_context_rqe_count,
&rq_create->u.request.context,
LPFC_RQ_RING_SIZE_512);
break;
case 1024:
bf_set(lpfc_rq_context_rqe_count,
&rq_create->u.request.context,
LPFC_RQ_RING_SIZE_1024);
break;
case 2048:
bf_set(lpfc_rq_context_rqe_count,
&rq_create->u.request.context,
LPFC_RQ_RING_SIZE_2048);
break;
case 4096:
bf_set(lpfc_rq_context_rqe_count,
&rq_create->u.request.context,
LPFC_RQ_RING_SIZE_4096);
break;
}
if (subtype == LPFC_NVMET)
bf_set(lpfc_rq_context_buf_size,
&rq_create->u.request.context,
LPFC_NVMET_DATA_BUF_SIZE);
else
bf_set(lpfc_rq_context_buf_size,
&rq_create->u.request.context,
LPFC_DATA_BUF_SIZE);
}
bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
cq->queue_id);
bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
drq->page_count);
list_for_each_entry(dmabuf, &drq->page_list, list) {
rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
putPaddrLow(dmabuf->phys);
rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
putPaddrHigh(dmabuf->phys);
}
if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
status = -ENXIO;
goto out;
}
drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
if (drq->queue_id == 0xFFFF) {
status = -ENXIO;
goto out;
}
drq->type = LPFC_DRQ;
drq->assoc_qid = cq->queue_id;
drq->subtype = subtype;
drq->host_index = 0;
drq->hba_index = 0;
drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
/* link the header and data RQs onto the parent cq child list */
list_add_tail(&hrq->list, &cq->child_list);
list_add_tail(&drq->list, &cq->child_list);
out:
mempool_free(mbox, phba->mbox_mem_pool);
return status;
}
/**
* lpfc_mrq_create - Create MRQ Receive Queues on the HBA
* @phba: HBA structure that indicates port to create a queue on.
* @hrqp: The queue structure array to use to create the header receive queues.
* @drqp: The queue structure array to use to create the data receive queues.
* @cqp: The completion queue array to bind these receive queues to.
* @subtype: Functional purpose of the queue (MBOX, IO, ELS, NVMET, etc).
*
* This function creates a receive buffer queue pair , as detailed in @hrq and
* @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
* to the HBA.
*
* The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
* struct is used to get the entry count that is necessary to determine the
* number of pages to use for this queue. The @cq is used to indicate which
* completion queue to bind received buffers that are posted to these queues to.
* This function will send the RQ_CREATE mailbox command to the HBA to setup the
* receive queue pair. This function is asynchronous and will wait for the
* mailbox command to finish before continuing.
*
* On success this function will return a zero. If unable to allocate enough
* memory this function will return -ENOMEM. If the queue create mailbox command
* fails this function will return -ENXIO.
**/
int
lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
struct lpfc_queue **drqp, struct lpfc_queue **cqp,
uint32_t subtype)
{
struct lpfc_queue *hrq, *drq, *cq;
struct lpfc_mbx_rq_create_v2 *rq_create;
struct lpfc_dmabuf *dmabuf;
LPFC_MBOXQ_t *mbox;
int rc, length, alloclen, status = 0;
int cnt, idx, numrq, page_idx = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
numrq = phba->cfg_nvmet_mrq;
/* sanity check on array memory */
if (!hrqp || !drqp || !cqp || !numrq)
return -ENODEV;
if (!phba->sli4_hba.pc_sli4_params.supported)
hw_page_size = SLI4_PAGE_SIZE;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = sizeof(struct lpfc_mbx_rq_create_v2);
length += ((2 * numrq * hrqp[0]->page_count) *
sizeof(struct dma_address));
alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
LPFC_SLI4_MBX_NEMBED);
if (alloclen < length) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3099 Allocated DMA memory size (%d) is "
"less than the requested DMA memory size "
"(%d)\n", alloclen, length);
status = -ENOMEM;
goto out;
}
rq_create = mbox->sge_array->addr[0];
shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
cnt = 0;
for (idx = 0; idx < numrq; idx++) {
hrq = hrqp[idx];
drq = drqp[idx];
cq = cqp[idx];
/* sanity check on queue memory */
if (!hrq || !drq || !cq) {
status = -ENODEV;
goto out;
}
if (hrq->entry_count != drq->entry_count) {
status = -EINVAL;
goto out;
}
if (idx == 0) {
bf_set(lpfc_mbx_rq_create_num_pages,
&rq_create->u.request,
hrq->page_count);
bf_set(lpfc_mbx_rq_create_rq_cnt,
&rq_create->u.request, (numrq * 2));
bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
1);
bf_set(lpfc_rq_context_base_cq,
&rq_create->u.request.context,
cq->queue_id);
bf_set(lpfc_rq_context_data_size,
&rq_create->u.request.context,
LPFC_NVMET_DATA_BUF_SIZE);
bf_set(lpfc_rq_context_hdr_size,
&rq_create->u.request.context,
LPFC_HDR_BUF_SIZE);
bf_set(lpfc_rq_context_rqe_count_1,
&rq_create->u.request.context,
hrq->entry_count);
bf_set(lpfc_rq_context_rqe_size,
&rq_create->u.request.context,
LPFC_RQE_SIZE_8);
bf_set(lpfc_rq_context_page_size,
&rq_create->u.request.context,
(PAGE_SIZE/SLI4_PAGE_SIZE));
}
rc = 0;
list_for_each_entry(dmabuf, &hrq->page_list, list) {
memset(dmabuf->virt, 0, hw_page_size);
cnt = page_idx + dmabuf->buffer_tag;
rq_create->u.request.page[cnt].addr_lo =
putPaddrLow(dmabuf->phys);
rq_create->u.request.page[cnt].addr_hi =
putPaddrHigh(dmabuf->phys);
rc++;
}
page_idx += rc;
rc = 0;
list_for_each_entry(dmabuf, &drq->page_list, list) {
memset(dmabuf->virt, 0, hw_page_size);
cnt = page_idx + dmabuf->buffer_tag;
rq_create->u.request.page[cnt].addr_lo =
putPaddrLow(dmabuf->phys);
rq_create->u.request.page[cnt].addr_hi =
putPaddrHigh(dmabuf->phys);
rc++;
}
page_idx += rc;
hrq->db_format = LPFC_DB_RING_FORMAT;
hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
hrq->type = LPFC_HRQ;
hrq->assoc_qid = cq->queue_id;
hrq->subtype = subtype;
hrq->host_index = 0;
hrq->hba_index = 0;
hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
drq->db_format = LPFC_DB_RING_FORMAT;
drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
drq->type = LPFC_DRQ;
drq->assoc_qid = cq->queue_id;
drq->subtype = subtype;
drq->host_index = 0;
drq->hba_index = 0;
drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
list_add_tail(&hrq->list, &cq->child_list);
list_add_tail(&drq->list, &cq->child_list);
}
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3120 RQ_CREATE mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
goto out;
}
rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
if (rc == 0xFFFF) {
status = -ENXIO;
goto out;
}
/* Initialize all RQs with associated queue id */
for (idx = 0; idx < numrq; idx++) {
hrq = hrqp[idx];
hrq->queue_id = rc + (2 * idx);
drq = drqp[idx];
drq->queue_id = rc + (2 * idx) + 1;
}
out:
lpfc_sli4_mbox_cmd_free(phba, mbox);
return status;
}
/**
* lpfc_eq_destroy - Destroy an event Queue on the HBA
* @phba: HBA structure that indicates port to destroy a queue on.
* @eq: The queue structure associated with the queue to destroy.
*
* This function destroys a queue, as detailed in @eq by sending an mailbox
* command, specific to the type of queue, to the HBA.
*
* The @eq struct is used to get the queue ID of the queue to destroy.
*
* On success this function will return a zero. If the queue destroy mailbox
* command fails this function will return -ENXIO.
**/
int
lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
{
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
/* sanity check on queue memory */
if (!eq)
return -ENODEV;
mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_eq_destroy) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_EQ_DESTROY,
length, LPFC_SLI4_MBX_EMBED);
bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
eq->queue_id);
mbox->vport = eq->phba->pport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr = (union lpfc_sli4_cfg_shdr *)
&mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2505 EQ_DESTROY mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
}
/* Remove eq from any list */
list_del_init(&eq->list);
mempool_free(mbox, eq->phba->mbox_mem_pool);
return status;
}
/**
* lpfc_cq_destroy - Destroy a Completion Queue on the HBA
* @phba: HBA structure that indicates port to destroy a queue on.
* @cq: The queue structure associated with the queue to destroy.
*
* This function destroys a queue, as detailed in @cq by sending an mailbox
* command, specific to the type of queue, to the HBA.
*
* The @cq struct is used to get the queue ID of the queue to destroy.
*
* On success this function will return a zero. If the queue destroy mailbox
* command fails this function will return -ENXIO.
**/
int
lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
{
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
/* sanity check on queue memory */
if (!cq)
return -ENODEV;
mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_cq_destroy) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_CQ_DESTROY,
length, LPFC_SLI4_MBX_EMBED);
bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
cq->queue_id);
mbox->vport = cq->phba->pport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr = (union lpfc_sli4_cfg_shdr *)
&mbox->u.mqe.un.wq_create.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2506 CQ_DESTROY mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
}
/* Remove cq from any list */
list_del_init(&cq->list);
mempool_free(mbox, cq->phba->mbox_mem_pool);
return status;
}
/**
* lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
* @phba: HBA structure that indicates port to destroy a queue on.
* @mq: The queue structure associated with the queue to destroy.
*
* This function destroys a queue, as detailed in @mq by sending an mailbox
* command, specific to the type of queue, to the HBA.
*
* The @mq struct is used to get the queue ID of the queue to destroy.
*
* On success this function will return a zero. If the queue destroy mailbox
* command fails this function will return -ENXIO.
**/
int
lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
{
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
/* sanity check on queue memory */
if (!mq)
return -ENODEV;
mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_mq_destroy) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_MQ_DESTROY,
length, LPFC_SLI4_MBX_EMBED);
bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
mq->queue_id);
mbox->vport = mq->phba->pport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr = (union lpfc_sli4_cfg_shdr *)
&mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2507 MQ_DESTROY mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
}
/* Remove mq from any list */
list_del_init(&mq->list);
mempool_free(mbox, mq->phba->mbox_mem_pool);
return status;
}
/**
* lpfc_wq_destroy - Destroy a Work Queue on the HBA
* @phba: HBA structure that indicates port to destroy a queue on.
* @wq: The queue structure associated with the queue to destroy.
*
* This function destroys a queue, as detailed in @wq by sending an mailbox
* command, specific to the type of queue, to the HBA.
*
* The @wq struct is used to get the queue ID of the queue to destroy.
*
* On success this function will return a zero. If the queue destroy mailbox
* command fails this function will return -ENXIO.
**/
int
lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
{
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
/* sanity check on queue memory */
if (!wq)
return -ENODEV;
mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_wq_destroy) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
length, LPFC_SLI4_MBX_EMBED);
bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
wq->queue_id);
mbox->vport = wq->phba->pport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *)
&mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2508 WQ_DESTROY mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
}
/* Remove wq from any list */
list_del_init(&wq->list);
kfree(wq->pring);
wq->pring = NULL;
mempool_free(mbox, wq->phba->mbox_mem_pool);
return status;
}
/**
* lpfc_rq_destroy - Destroy a Receive Queue on the HBA
* @phba: HBA structure that indicates port to destroy a queue on.
* @hrq: The queue structure associated with the queue to destroy.
* @drq: The queue structure associated with the queue to destroy.
*
* This function destroys a queue, as detailed in @rq by sending an mailbox
* command, specific to the type of queue, to the HBA.
*
* The @rq struct is used to get the queue ID of the queue to destroy.
*
* On success this function will return a zero. If the queue destroy mailbox
* command fails this function will return -ENXIO.
**/
int
lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
struct lpfc_queue *drq)
{
LPFC_MBOXQ_t *mbox;
int rc, length, status = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
/* sanity check on queue memory */
if (!hrq || !drq)
return -ENODEV;
mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_rq_destroy) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
length, LPFC_SLI4_MBX_EMBED);
bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
hrq->queue_id);
mbox->vport = hrq->phba->pport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
/* The IOCTL status is embedded in the mailbox subheader. */
shdr = (union lpfc_sli4_cfg_shdr *)
&mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2509 RQ_DESTROY mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
mempool_free(mbox, hrq->phba->mbox_mem_pool);
return -ENXIO;
}
bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
drq->queue_id);
rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *)
&mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2510 RQ_DESTROY mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
status = -ENXIO;
}
list_del_init(&hrq->list);
list_del_init(&drq->list);
mempool_free(mbox, hrq->phba->mbox_mem_pool);
return status;
}
/**
* lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
* @phba: The virtual port for which this call being executed.
* @pdma_phys_addr0: Physical address of the 1st SGL page.
* @pdma_phys_addr1: Physical address of the 2nd SGL page.
* @xritag: the xritag that ties this io to the SGL pages.
*
* This routine will post the sgl pages for the IO that has the xritag
* that is in the iocbq structure. The xritag is assigned during iocbq
* creation and persists for as long as the driver is loaded.
* if the caller has fewer than 256 scatter gather segments to map then
* pdma_phys_addr1 should be 0.
* If the caller needs to map more than 256 scatter gather segment then
* pdma_phys_addr1 should be a valid physical address.
* physical address for SGLs must be 64 byte aligned.
* If you are going to map 2 SGL's then the first one must have 256 entries
* the second sgl can have between 1 and 256 entries.
*
* Return codes:
* 0 - Success
* -ENXIO, -ENOMEM - Failure
**/
int
lpfc_sli4_post_sgl(struct lpfc_hba *phba,
dma_addr_t pdma_phys_addr0,
dma_addr_t pdma_phys_addr1,
uint16_t xritag)
{
struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
LPFC_MBOXQ_t *mbox;
int rc;
uint32_t shdr_status, shdr_add_status;
uint32_t mbox_tmo;
union lpfc_sli4_cfg_shdr *shdr;
if (xritag == NO_XRI) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0364 Invalid param:\n");
return -EINVAL;
}
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
sizeof(struct lpfc_mbx_post_sgl_pages) -
sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
&mbox->u.mqe.un.post_sgl_pages;
bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
cpu_to_le32(putPaddrLow(pdma_phys_addr0));
post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
cpu_to_le32(putPaddrLow(pdma_phys_addr1));
post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
}
/* The IOCTL status is embedded in the mailbox subheader. */
shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (!phba->sli4_hba.intr_enable)
mempool_free(mbox, phba->mbox_mem_pool);
else if (rc != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2511 POST_SGL mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
}
return 0;
}
/**
* lpfc_sli4_alloc_xri - Get an available rpi in the device's range
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to post rpi header templates to the
* HBA consistent with the SLI-4 interface spec. This routine
* posts a SLI4_PAGE_SIZE memory region to the port to hold up to
* SLI4_PAGE_SIZE modulo 64 rpi context headers.
*
* Returns
* A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
* LPFC_RPI_ALLOC_ERROR if no rpis are available.
**/
static uint16_t
lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
{
unsigned long xri;
/*
* Fetch the next logical xri. Because this index is logical,
* the driver starts at 0 each time.
*/
spin_lock_irq(&phba->hbalock);
xri = find_first_zero_bit(phba->sli4_hba.xri_bmask,
phba->sli4_hba.max_cfg_param.max_xri);
if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
spin_unlock_irq(&phba->hbalock);
return NO_XRI;
} else {
set_bit(xri, phba->sli4_hba.xri_bmask);
phba->sli4_hba.max_cfg_param.xri_used++;
}
spin_unlock_irq(&phba->hbalock);
return xri;
}
/**
* __lpfc_sli4_free_xri - Release an xri for reuse.
* @phba: pointer to lpfc hba data structure.
* @xri: xri to release.
*
* This routine is invoked to release an xri to the pool of
* available rpis maintained by the driver.
**/
static void
__lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
{
if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
phba->sli4_hba.max_cfg_param.xri_used--;
}
}
/**
* lpfc_sli4_free_xri - Release an xri for reuse.
* @phba: pointer to lpfc hba data structure.
* @xri: xri to release.
*
* This routine is invoked to release an xri to the pool of
* available rpis maintained by the driver.
**/
void
lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
{
spin_lock_irq(&phba->hbalock);
__lpfc_sli4_free_xri(phba, xri);
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli4_next_xritag - Get an xritag for the io
* @phba: Pointer to HBA context object.
*
* This function gets an xritag for the iocb. If there is no unused xritag
* it will return 0xffff.
* The function returns the allocated xritag if successful, else returns zero.
* Zero is not a valid xritag.
* The caller is not required to hold any lock.
**/
uint16_t
lpfc_sli4_next_xritag(struct lpfc_hba *phba)
{
uint16_t xri_index;
xri_index = lpfc_sli4_alloc_xri(phba);
if (xri_index == NO_XRI)
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"2004 Failed to allocate XRI.last XRITAG is %d"
" Max XRI is %d, Used XRI is %d\n",
xri_index,
phba->sli4_hba.max_cfg_param.max_xri,
phba->sli4_hba.max_cfg_param.xri_used);
return xri_index;
}
/**
* lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
* @phba: pointer to lpfc hba data structure.
* @post_sgl_list: pointer to els sgl entry list.
* @post_cnt: number of els sgl entries on the list.
*
* This routine is invoked to post a block of driver's sgl pages to the
* HBA using non-embedded mailbox command. No Lock is held. This routine
* is only called when the driver is loading and after all IO has been
* stopped.
**/
static int
lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
struct list_head *post_sgl_list,
int post_cnt)
{
struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
struct sgl_page_pairs *sgl_pg_pairs;
void *viraddr;
LPFC_MBOXQ_t *mbox;
uint32_t reqlen, alloclen, pg_pairs;
uint32_t mbox_tmo;
uint16_t xritag_start = 0;
int rc = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
if (reqlen > SLI4_PAGE_SIZE) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2559 Block sgl registration required DMA "
"size (%d) great than a page\n", reqlen);
return -ENOMEM;
}
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
/* Allocate DMA memory and set up the non-embedded mailbox command */
alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
LPFC_SLI4_MBX_NEMBED);
if (alloclen < reqlen) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0285 Allocated DMA memory size (%d) is "
"less than the requested DMA memory "
"size (%d)\n", alloclen, reqlen);
lpfc_sli4_mbox_cmd_free(phba, mbox);
return -ENOMEM;
}
/* Set up the SGL pages in the non-embedded DMA pages */
viraddr = mbox->sge_array->addr[0];
sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
sgl_pg_pairs = &sgl->sgl_pg_pairs;
pg_pairs = 0;
list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
/* Set up the sge entry */
sgl_pg_pairs->sgl_pg0_addr_lo =
cpu_to_le32(putPaddrLow(sglq_entry->phys));
sgl_pg_pairs->sgl_pg0_addr_hi =
cpu_to_le32(putPaddrHigh(sglq_entry->phys));
sgl_pg_pairs->sgl_pg1_addr_lo =
cpu_to_le32(putPaddrLow(0));
sgl_pg_pairs->sgl_pg1_addr_hi =
cpu_to_le32(putPaddrHigh(0));
/* Keep the first xritag on the list */
if (pg_pairs == 0)
xritag_start = sglq_entry->sli4_xritag;
sgl_pg_pairs++;
pg_pairs++;
}
/* Complete initialization and perform endian conversion. */
bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
sgl->word0 = cpu_to_le32(sgl->word0);
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
}
shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (!phba->sli4_hba.intr_enable)
lpfc_sli4_mbox_cmd_free(phba, mbox);
else if (rc != MBX_TIMEOUT)
lpfc_sli4_mbox_cmd_free(phba, mbox);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2513 POST_SGL_BLOCK mailbox command failed "
"status x%x add_status x%x mbx status x%x\n",
shdr_status, shdr_add_status, rc);
rc = -ENXIO;
}
return rc;
}
/**
* lpfc_sli4_post_io_sgl_block - post a block of nvme sgl list to firmware
* @phba: pointer to lpfc hba data structure.
* @nblist: pointer to nvme buffer list.
* @count: number of scsi buffers on the list.
*
* This routine is invoked to post a block of @count scsi sgl pages from a
* SCSI buffer list @nblist to the HBA using non-embedded mailbox command.
* No Lock is held.
*
**/
static int
lpfc_sli4_post_io_sgl_block(struct lpfc_hba *phba, struct list_head *nblist,
int count)
{
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
struct sgl_page_pairs *sgl_pg_pairs;
void *viraddr;
LPFC_MBOXQ_t *mbox;
uint32_t reqlen, alloclen, pg_pairs;
uint32_t mbox_tmo;
uint16_t xritag_start = 0;
int rc = 0;
uint32_t shdr_status, shdr_add_status;
dma_addr_t pdma_phys_bpl1;
union lpfc_sli4_cfg_shdr *shdr;
/* Calculate the requested length of the dma memory */
reqlen = count * sizeof(struct sgl_page_pairs) +
sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
if (reqlen > SLI4_PAGE_SIZE) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"6118 Block sgl registration required DMA "
"size (%d) great than a page\n", reqlen);
return -ENOMEM;
}
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6119 Failed to allocate mbox cmd memory\n");
return -ENOMEM;
}
/* Allocate DMA memory and set up the non-embedded mailbox command */
alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
reqlen, LPFC_SLI4_MBX_NEMBED);
if (alloclen < reqlen) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6120 Allocated DMA memory size (%d) is "
"less than the requested DMA memory "
"size (%d)\n", alloclen, reqlen);
lpfc_sli4_mbox_cmd_free(phba, mbox);
return -ENOMEM;
}
/* Get the first SGE entry from the non-embedded DMA memory */
viraddr = mbox->sge_array->addr[0];
/* Set up the SGL pages in the non-embedded DMA pages */
sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
sgl_pg_pairs = &sgl->sgl_pg_pairs;
pg_pairs = 0;
list_for_each_entry(lpfc_ncmd, nblist, list) {
/* Set up the sge entry */
sgl_pg_pairs->sgl_pg0_addr_lo =
cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl));
sgl_pg_pairs->sgl_pg0_addr_hi =
cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl));
if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl +
SGL_PAGE_SIZE;
else
pdma_phys_bpl1 = 0;
sgl_pg_pairs->sgl_pg1_addr_lo =
cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
sgl_pg_pairs->sgl_pg1_addr_hi =
cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
/* Keep the first xritag on the list */
if (pg_pairs == 0)
xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag;
sgl_pg_pairs++;
pg_pairs++;
}
bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
/* Perform endian conversion if necessary */
sgl->word0 = cpu_to_le32(sgl->word0);
if (!phba->sli4_hba.intr_enable) {
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
} else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
}
shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (!phba->sli4_hba.intr_enable)
lpfc_sli4_mbox_cmd_free(phba, mbox);
else if (rc != MBX_TIMEOUT)
lpfc_sli4_mbox_cmd_free(phba, mbox);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6125 POST_SGL_BLOCK mailbox command failed "
"status x%x add_status x%x mbx status x%x\n",
shdr_status, shdr_add_status, rc);
rc = -ENXIO;
}
return rc;
}
/**
* lpfc_sli4_post_io_sgl_list - Post blocks of nvme buffer sgls from a list
* @phba: pointer to lpfc hba data structure.
* @post_nblist: pointer to the nvme buffer list.
* @sb_count: number of nvme buffers.
*
* This routine walks a list of nvme buffers that was passed in. It attempts
* to construct blocks of nvme buffer sgls which contains contiguous xris and
* uses the non-embedded SGL block post mailbox commands to post to the port.
* For single NVME buffer sgl with non-contiguous xri, if any, it shall use
* embedded SGL post mailbox command for posting. The @post_nblist passed in
* must be local list, thus no lock is needed when manipulate the list.
*
* Returns: 0 = failure, non-zero number of successfully posted buffers.
**/
int
lpfc_sli4_post_io_sgl_list(struct lpfc_hba *phba,
struct list_head *post_nblist, int sb_count)
{
struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
int status, sgl_size;
int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0;
dma_addr_t pdma_phys_sgl1;
int last_xritag = NO_XRI;
int cur_xritag;
LIST_HEAD(prep_nblist);
LIST_HEAD(blck_nblist);
LIST_HEAD(nvme_nblist);
/* sanity check */
if (sb_count <= 0)
return -EINVAL;
sgl_size = phba->cfg_sg_dma_buf_size;
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) {
list_del_init(&lpfc_ncmd->list);
block_cnt++;
if ((last_xritag != NO_XRI) &&
(lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) {
/* a hole in xri block, form a sgl posting block */
list_splice_init(&prep_nblist, &blck_nblist);
post_cnt = block_cnt - 1;
/* prepare list for next posting block */
list_add_tail(&lpfc_ncmd->list, &prep_nblist);
block_cnt = 1;
} else {
/* prepare list for next posting block */
list_add_tail(&lpfc_ncmd->list, &prep_nblist);
/* enough sgls for non-embed sgl mbox command */
if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
list_splice_init(&prep_nblist, &blck_nblist);
post_cnt = block_cnt;
block_cnt = 0;
}
}
num_posting++;
last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
/* end of repost sgl list condition for NVME buffers */
if (num_posting == sb_count) {
if (post_cnt == 0) {
/* last sgl posting block */
list_splice_init(&prep_nblist, &blck_nblist);
post_cnt = block_cnt;
} else if (block_cnt == 1) {
/* last single sgl with non-contiguous xri */
if (sgl_size > SGL_PAGE_SIZE)
pdma_phys_sgl1 =
lpfc_ncmd->dma_phys_sgl +
SGL_PAGE_SIZE;
else
pdma_phys_sgl1 = 0;
cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
status = lpfc_sli4_post_sgl(
phba, lpfc_ncmd->dma_phys_sgl,
pdma_phys_sgl1, cur_xritag);
if (status) {
/* Post error. Buffer unavailable. */
lpfc_ncmd->flags |=
LPFC_SBUF_NOT_POSTED;
} else {
/* Post success. Bffer available. */
lpfc_ncmd->flags &=
~LPFC_SBUF_NOT_POSTED;
lpfc_ncmd->status = IOSTAT_SUCCESS;
num_posted++;
}
/* success, put on NVME buffer sgl list */
list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
}
}
/* continue until a nembed page worth of sgls */
if (post_cnt == 0)
continue;
/* post block of NVME buffer list sgls */
status = lpfc_sli4_post_io_sgl_block(phba, &blck_nblist,
post_cnt);
/* don't reset xirtag due to hole in xri block */
if (block_cnt == 0)
last_xritag = NO_XRI;
/* reset NVME buffer post count for next round of posting */
post_cnt = 0;
/* put posted NVME buffer-sgl posted on NVME buffer sgl list */
while (!list_empty(&blck_nblist)) {
list_remove_head(&blck_nblist, lpfc_ncmd,
struct lpfc_io_buf, list);
if (status) {
/* Post error. Mark buffer unavailable. */
lpfc_ncmd->flags |= LPFC_SBUF_NOT_POSTED;
} else {
/* Post success, Mark buffer available. */
lpfc_ncmd->flags &= ~LPFC_SBUF_NOT_POSTED;
lpfc_ncmd->status = IOSTAT_SUCCESS;
num_posted++;
}
list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
}
}
/* Push NVME buffers with sgl posted to the available list */
lpfc_io_buf_replenish(phba, &nvme_nblist);
return num_posted;
}
/**
* lpfc_fc_frame_check - Check that this frame is a valid frame to handle
* @phba: pointer to lpfc_hba struct that the frame was received on
* @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
*
* This function checks the fields in the @fc_hdr to see if the FC frame is a
* valid type of frame that the LPFC driver will handle. This function will
* return a zero if the frame is a valid frame or a non zero value when the
* frame does not pass the check.
**/
static int
lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
{
/* make rctl_names static to save stack space */
struct fc_vft_header *fc_vft_hdr;
uint32_t *header = (uint32_t *) fc_hdr;
#define FC_RCTL_MDS_DIAGS 0xF4
switch (fc_hdr->fh_r_ctl) {
case FC_RCTL_DD_UNCAT: /* uncategorized information */
case FC_RCTL_DD_SOL_DATA: /* solicited data */
case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
case FC_RCTL_DD_DATA_DESC: /* data descriptor */
case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
case FC_RCTL_DD_CMD_STATUS: /* command status */
case FC_RCTL_ELS_REQ: /* extended link services request */
case FC_RCTL_ELS_REP: /* extended link services reply */
case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
case FC_RCTL_BA_ABTS: /* basic link service abort */
case FC_RCTL_BA_RMC: /* remove connection */
case FC_RCTL_BA_ACC: /* basic accept */
case FC_RCTL_BA_RJT: /* basic reject */
case FC_RCTL_BA_PRMT:
case FC_RCTL_ACK_1: /* acknowledge_1 */
case FC_RCTL_ACK_0: /* acknowledge_0 */
case FC_RCTL_P_RJT: /* port reject */
case FC_RCTL_F_RJT: /* fabric reject */
case FC_RCTL_P_BSY: /* port busy */
case FC_RCTL_F_BSY: /* fabric busy to data frame */
case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
case FC_RCTL_LCR: /* link credit reset */
case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
case FC_RCTL_END: /* end */
break;
case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
return lpfc_fc_frame_check(phba, fc_hdr);
case FC_RCTL_BA_NOP: /* basic link service NOP */
default:
goto drop;
}
switch (fc_hdr->fh_type) {
case FC_TYPE_BLS:
case FC_TYPE_ELS:
case FC_TYPE_FCP:
case FC_TYPE_CT:
case FC_TYPE_NVME:
break;
case FC_TYPE_IP:
case FC_TYPE_ILS:
default:
goto drop;
}
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"2538 Received frame rctl:x%x, type:x%x, "
"frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
fc_hdr->fh_r_ctl, fc_hdr->fh_type,
be32_to_cpu(header[0]), be32_to_cpu(header[1]),
be32_to_cpu(header[2]), be32_to_cpu(header[3]),
be32_to_cpu(header[4]), be32_to_cpu(header[5]),
be32_to_cpu(header[6]));
return 0;
drop:
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
"2539 Dropped frame rctl:x%x type:x%x\n",
fc_hdr->fh_r_ctl, fc_hdr->fh_type);
return 1;
}
/**
* lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
* @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
*
* This function processes the FC header to retrieve the VFI from the VF
* header, if one exists. This function will return the VFI if one exists
* or 0 if no VSAN Header exists.
**/
static uint32_t
lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
{
struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
return 0;
return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
}
/**
* lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
* @phba: Pointer to the HBA structure to search for the vport on
* @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
* @fcfi: The FC Fabric ID that the frame came from
* @did: Destination ID to match against
*
* This function searches the @phba for a vport that matches the content of the
* @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
* VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
* returns the matching vport pointer or NULL if unable to match frame to a
* vport.
**/
static struct lpfc_vport *
lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
uint16_t fcfi, uint32_t did)
{
struct lpfc_vport **vports;
struct lpfc_vport *vport = NULL;
int i;
if (did == Fabric_DID)
return phba->pport;
if ((phba->pport->fc_flag & FC_PT2PT) &&
!(phba->link_state == LPFC_HBA_READY))
return phba->pport;
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL) {
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
if (phba->fcf.fcfi == fcfi &&
vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
vports[i]->fc_myDID == did) {
vport = vports[i];
break;
}
}
}
lpfc_destroy_vport_work_array(phba, vports);
return vport;
}
/**
* lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
* @vport: The vport to work on.
*
* This function updates the receive sequence time stamp for this vport. The
* receive sequence time stamp indicates the time that the last frame of the
* the sequence that has been idle for the longest amount of time was received.
* the driver uses this time stamp to indicate if any received sequences have
* timed out.
**/
static void
lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
{
struct lpfc_dmabuf *h_buf;
struct hbq_dmabuf *dmabuf = NULL;
/* get the oldest sequence on the rcv list */
h_buf = list_get_first(&vport->rcv_buffer_list,
struct lpfc_dmabuf, list);
if (!h_buf)
return;
dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
}
/**
* lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
* @vport: The vport that the received sequences were sent to.
*
* This function cleans up all outstanding received sequences. This is called
* by the driver when a link event or user action invalidates all the received
* sequences.
**/
void
lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
{
struct lpfc_dmabuf *h_buf, *hnext;
struct lpfc_dmabuf *d_buf, *dnext;
struct hbq_dmabuf *dmabuf = NULL;
/* start with the oldest sequence on the rcv list */
list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
list_del_init(&dmabuf->hbuf.list);
list_for_each_entry_safe(d_buf, dnext,
&dmabuf->dbuf.list, list) {
list_del_init(&d_buf->list);
lpfc_in_buf_free(vport->phba, d_buf);
}
lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
}
}
/**
* lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
* @vport: The vport that the received sequences were sent to.
*
* This function determines whether any received sequences have timed out by
* first checking the vport's rcv_buffer_time_stamp. If this time_stamp
* indicates that there is at least one timed out sequence this routine will
* go through the received sequences one at a time from most inactive to most
* active to determine which ones need to be cleaned up. Once it has determined
* that a sequence needs to be cleaned up it will simply free up the resources
* without sending an abort.
**/
void
lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
{
struct lpfc_dmabuf *h_buf, *hnext;
struct lpfc_dmabuf *d_buf, *dnext;
struct hbq_dmabuf *dmabuf = NULL;
unsigned long timeout;
int abort_count = 0;
timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
vport->rcv_buffer_time_stamp);
if (list_empty(&vport->rcv_buffer_list) ||
time_before(jiffies, timeout))
return;
/* start with the oldest sequence on the rcv list */
list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
dmabuf->time_stamp);
if (time_before(jiffies, timeout))
break;
abort_count++;
list_del_init(&dmabuf->hbuf.list);
list_for_each_entry_safe(d_buf, dnext,
&dmabuf->dbuf.list, list) {
list_del_init(&d_buf->list);
lpfc_in_buf_free(vport->phba, d_buf);
}
lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
}
if (abort_count)
lpfc_update_rcv_time_stamp(vport);
}
/**
* lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
* @vport: pointer to a vitural port
* @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
*
* This function searches through the existing incomplete sequences that have
* been sent to this @vport. If the frame matches one of the incomplete
* sequences then the dbuf in the @dmabuf is added to the list of frames that
* make up that sequence. If no sequence is found that matches this frame then
* the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
* This function returns a pointer to the first dmabuf in the sequence list that
* the frame was linked to.
**/
static struct hbq_dmabuf *
lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
{
struct fc_frame_header *new_hdr;
struct fc_frame_header *temp_hdr;
struct lpfc_dmabuf *d_buf;
struct lpfc_dmabuf *h_buf;
struct hbq_dmabuf *seq_dmabuf = NULL;
struct hbq_dmabuf *temp_dmabuf = NULL;
uint8_t found = 0;
INIT_LIST_HEAD(&dmabuf->dbuf.list);
dmabuf->time_stamp = jiffies;
new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
/* Use the hdr_buf to find the sequence that this frame belongs to */
list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
temp_hdr = (struct fc_frame_header *)h_buf->virt;
if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
(temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
(memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
continue;
/* found a pending sequence that matches this frame */
seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
break;
}
if (!seq_dmabuf) {
/*
* This indicates first frame received for this sequence.
* Queue the buffer on the vport's rcv_buffer_list.
*/
list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
lpfc_update_rcv_time_stamp(vport);
return dmabuf;
}
temp_hdr = seq_dmabuf->hbuf.virt;
if (be16_to_cpu(new_hdr->fh_seq_cnt) <
be16_to_cpu(temp_hdr->fh_seq_cnt)) {
list_del_init(&seq_dmabuf->hbuf.list);
list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
lpfc_update_rcv_time_stamp(vport);
return dmabuf;
}
/* move this sequence to the tail to indicate a young sequence */
list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
seq_dmabuf->time_stamp = jiffies;
lpfc_update_rcv_time_stamp(vport);
if (list_empty(&seq_dmabuf->dbuf.list)) {
list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
return seq_dmabuf;
}
/* find the correct place in the sequence to insert this frame */
d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
while (!found) {
temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
/*
* If the frame's sequence count is greater than the frame on
* the list then insert the frame right after this frame
*/
if (be16_to_cpu(new_hdr->fh_seq_cnt) >
be16_to_cpu(temp_hdr->fh_seq_cnt)) {
list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
found = 1;
break;
}
if (&d_buf->list == &seq_dmabuf->dbuf.list)
break;
d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
}
if (found)
return seq_dmabuf;
return NULL;
}
/**
* lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
* @vport: pointer to a vitural port
* @dmabuf: pointer to a dmabuf that describes the FC sequence
*
* This function tries to abort from the partially assembed sequence, described
* by the information from basic abbort @dmabuf. It checks to see whether such
* partially assembled sequence held by the driver. If so, it shall free up all
* the frames from the partially assembled sequence.
*
* Return
* true -- if there is matching partially assembled sequence present and all
* the frames freed with the sequence;
* false -- if there is no matching partially assembled sequence present so
* nothing got aborted in the lower layer driver
**/
static bool
lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
struct hbq_dmabuf *dmabuf)
{
struct fc_frame_header *new_hdr;
struct fc_frame_header *temp_hdr;
struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
struct hbq_dmabuf *seq_dmabuf = NULL;
/* Use the hdr_buf to find the sequence that matches this frame */
INIT_LIST_HEAD(&dmabuf->dbuf.list);
INIT_LIST_HEAD(&dmabuf->hbuf.list);
new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
temp_hdr = (struct fc_frame_header *)h_buf->virt;
if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
(temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
(memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
continue;
/* found a pending sequence that matches this frame */
seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
break;
}
/* Free up all the frames from the partially assembled sequence */
if (seq_dmabuf) {
list_for_each_entry_safe(d_buf, n_buf,
&seq_dmabuf->dbuf.list, list) {
list_del_init(&d_buf->list);
lpfc_in_buf_free(vport->phba, d_buf);
}
return true;
}
return false;
}
/**
* lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
* @vport: pointer to a vitural port
* @dmabuf: pointer to a dmabuf that describes the FC sequence
*
* This function tries to abort from the assembed sequence from upper level
* protocol, described by the information from basic abbort @dmabuf. It
* checks to see whether such pending context exists at upper level protocol.
* If so, it shall clean up the pending context.
*
* Return
* true -- if there is matching pending context of the sequence cleaned
* at ulp;
* false -- if there is no matching pending context of the sequence present
* at ulp.
**/
static bool
lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
{
struct lpfc_hba *phba = vport->phba;
int handled;
/* Accepting abort at ulp with SLI4 only */
if (phba->sli_rev < LPFC_SLI_REV4)
return false;
/* Register all caring upper level protocols to attend abort */
handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
if (handled)
return true;
return false;
}
/**
* lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
* @phba: Pointer to HBA context object.
* @cmd_iocbq: pointer to the command iocbq structure.
* @rsp_iocbq: pointer to the response iocbq structure.
*
* This function handles the sequence abort response iocb command complete
* event. It properly releases the memory allocated to the sequence abort
* accept iocb.
**/
static void
lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
struct lpfc_iocbq *cmd_iocbq,
struct lpfc_iocbq *rsp_iocbq)
{
if (cmd_iocbq) {
lpfc_nlp_put(cmd_iocbq->ndlp);
lpfc_sli_release_iocbq(phba, cmd_iocbq);
}
/* Failure means BLS ABORT RSP did not get delivered to remote node*/
if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3154 BLS ABORT RSP failed, data: x%x/x%x\n",
get_job_ulpstatus(phba, rsp_iocbq),
get_job_word4(phba, rsp_iocbq));
}
/**
* lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
* @phba: Pointer to HBA context object.
* @xri: xri id in transaction.
*
* This function validates the xri maps to the known range of XRIs allocated an
* used by the driver.
**/
uint16_t
lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
uint16_t xri)
{
uint16_t i;
for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
if (xri == phba->sli4_hba.xri_ids[i])
return i;
}
return NO_XRI;
}
/**
* lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
* @vport: pointer to a virtual port.
* @fc_hdr: pointer to a FC frame header.
* @aborted: was the partially assembled receive sequence successfully aborted
*
* This function sends a basic response to a previous unsol sequence abort
* event after aborting the sequence handling.
**/
void
lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
struct fc_frame_header *fc_hdr, bool aborted)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *ctiocb = NULL;
struct lpfc_nodelist *ndlp;
uint16_t oxid, rxid, xri, lxri;
uint32_t sid, fctl;
union lpfc_wqe128 *icmd;
int rc;
if (!lpfc_is_link_up(phba))
return;
sid = sli4_sid_from_fc_hdr(fc_hdr);
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
rxid = be16_to_cpu(fc_hdr->fh_rx_id);
ndlp = lpfc_findnode_did(vport, sid);
if (!ndlp) {
ndlp = lpfc_nlp_init(vport, sid);
if (!ndlp) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
"1268 Failed to allocate ndlp for "
"oxid:x%x SID:x%x\n", oxid, sid);
return;
}
/* Put ndlp onto pport node list */
lpfc_enqueue_node(vport, ndlp);
}
/* Allocate buffer for rsp iocb */
ctiocb = lpfc_sli_get_iocbq(phba);
if (!ctiocb)
return;
icmd = &ctiocb->wqe;
/* Extract the F_CTL field from FC_HDR */
fctl = sli4_fctl_from_fc_hdr(fc_hdr);
ctiocb->ndlp = lpfc_nlp_get(ndlp);
if (!ctiocb->ndlp) {
lpfc_sli_release_iocbq(phba, ctiocb);
return;
}
ctiocb->vport = phba->pport;
ctiocb->cmd_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
ctiocb->sli4_lxritag = NO_XRI;
ctiocb->sli4_xritag = NO_XRI;
ctiocb->abort_rctl = FC_RCTL_BA_ACC;
if (fctl & FC_FC_EX_CTX)
/* Exchange responder sent the abort so we
* own the oxid.
*/
xri = oxid;
else
xri = rxid;
lxri = lpfc_sli4_xri_inrange(phba, xri);
if (lxri != NO_XRI)
lpfc_set_rrq_active(phba, ndlp, lxri,
(xri == oxid) ? rxid : oxid, 0);
/* For BA_ABTS from exchange responder, if the logical xri with
* the oxid maps to the FCP XRI range, the port no longer has
* that exchange context, send a BLS_RJT. Override the IOCB for
* a BA_RJT.
*/
if ((fctl & FC_FC_EX_CTX) &&
(lxri > lpfc_sli4_get_iocb_cnt(phba))) {
ctiocb->abort_rctl = FC_RCTL_BA_RJT;
bf_set(xmit_bls_rsp64_rjt_vspec, &icmd->xmit_bls_rsp, 0);
bf_set(xmit_bls_rsp64_rjt_expc, &icmd->xmit_bls_rsp,
FC_BA_RJT_INV_XID);
bf_set(xmit_bls_rsp64_rjt_rsnc, &icmd->xmit_bls_rsp,
FC_BA_RJT_UNABLE);
}
/* If BA_ABTS failed to abort a partially assembled receive sequence,
* the driver no longer has that exchange, send a BLS_RJT. Override
* the IOCB for a BA_RJT.
*/
if (aborted == false) {
ctiocb->abort_rctl = FC_RCTL_BA_RJT;
bf_set(xmit_bls_rsp64_rjt_vspec, &icmd->xmit_bls_rsp, 0);
bf_set(xmit_bls_rsp64_rjt_expc, &icmd->xmit_bls_rsp,
FC_BA_RJT_INV_XID);
bf_set(xmit_bls_rsp64_rjt_rsnc, &icmd->xmit_bls_rsp,
FC_BA_RJT_UNABLE);
}
if (fctl & FC_FC_EX_CTX) {
/* ABTS sent by responder to CT exchange, construction
* of BA_ACC will use OX_ID from ABTS for the XRI_TAG
* field and RX_ID from ABTS for RX_ID field.
*/
ctiocb->abort_bls = LPFC_ABTS_UNSOL_RSP;
bf_set(xmit_bls_rsp64_rxid, &icmd->xmit_bls_rsp, rxid);
} else {
/* ABTS sent by initiator to CT exchange, construction
* of BA_ACC will need to allocate a new XRI as for the
* XRI_TAG field.
*/
ctiocb->abort_bls = LPFC_ABTS_UNSOL_INT;
}
/* OX_ID is invariable to who sent ABTS to CT exchange */
bf_set(xmit_bls_rsp64_oxid, &icmd->xmit_bls_rsp, oxid);
bf_set(xmit_bls_rsp64_oxid, &icmd->xmit_bls_rsp, rxid);
/* Use CT=VPI */
bf_set(wqe_els_did, &icmd->xmit_bls_rsp.wqe_dest,
ndlp->nlp_DID);
bf_set(xmit_bls_rsp64_temprpi, &icmd->xmit_bls_rsp,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_cmnd, &icmd->generic.wqe_com, CMD_XMIT_BLS_RSP64_CX);
/* Xmit CT abts response on exchange <xid> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
ctiocb->abort_rctl, oxid, phba->link_state);
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2925 Failed to issue CT ABTS RSP x%x on "
"xri x%x, Data x%x\n",
ctiocb->abort_rctl, oxid,
phba->link_state);
lpfc_nlp_put(ndlp);
ctiocb->ndlp = NULL;
lpfc_sli_release_iocbq(phba, ctiocb);
}
}
/**
* lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
* @vport: Pointer to the vport on which this sequence was received
* @dmabuf: pointer to a dmabuf that describes the FC sequence
*
* This function handles an SLI-4 unsolicited abort event. If the unsolicited
* receive sequence is only partially assembed by the driver, it shall abort
* the partially assembled frames for the sequence. Otherwise, if the
* unsolicited receive sequence has been completely assembled and passed to
* the Upper Layer Protocol (ULP), it then mark the per oxid status for the
* unsolicited sequence has been aborted. After that, it will issue a basic
* accept to accept the abort.
**/
static void
lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
struct hbq_dmabuf *dmabuf)
{
struct lpfc_hba *phba = vport->phba;
struct fc_frame_header fc_hdr;
uint32_t fctl;
bool aborted;
/* Make a copy of fc_hdr before the dmabuf being released */
memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
if (fctl & FC_FC_EX_CTX) {
/* ABTS by responder to exchange, no cleanup needed */
aborted = true;
} else {
/* ABTS by initiator to exchange, need to do cleanup */
aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
if (aborted == false)
aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
}
lpfc_in_buf_free(phba, &dmabuf->dbuf);
if (phba->nvmet_support) {
lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
return;
}
/* Respond with BA_ACC or BA_RJT accordingly */
lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
}
/**
* lpfc_seq_complete - Indicates if a sequence is complete
* @dmabuf: pointer to a dmabuf that describes the FC sequence
*
* This function checks the sequence, starting with the frame described by
* @dmabuf, to see if all the frames associated with this sequence are present.
* the frames associated with this sequence are linked to the @dmabuf using the
* dbuf list. This function looks for two major things. 1) That the first frame
* has a sequence count of zero. 2) There is a frame with last frame of sequence
* set. 3) That there are no holes in the sequence count. The function will
* return 1 when the sequence is complete, otherwise it will return 0.
**/
static int
lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
{
struct fc_frame_header *hdr;
struct lpfc_dmabuf *d_buf;
struct hbq_dmabuf *seq_dmabuf;
uint32_t fctl;
int seq_count = 0;
hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
/* make sure first fame of sequence has a sequence count of zero */
if (hdr->fh_seq_cnt != seq_count)
return 0;
fctl = (hdr->fh_f_ctl[0] << 16 |
hdr->fh_f_ctl[1] << 8 |
hdr->fh_f_ctl[2]);
/* If last frame of sequence we can return success. */
if (fctl & FC_FC_END_SEQ)
return 1;
list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
/* If there is a hole in the sequence count then fail. */
if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
return 0;
fctl = (hdr->fh_f_ctl[0] << 16 |
hdr->fh_f_ctl[1] << 8 |
hdr->fh_f_ctl[2]);
/* If last frame of sequence we can return success. */
if (fctl & FC_FC_END_SEQ)
return 1;
}
return 0;
}
/**
* lpfc_prep_seq - Prep sequence for ULP processing
* @vport: Pointer to the vport on which this sequence was received
* @seq_dmabuf: pointer to a dmabuf that describes the FC sequence
*
* This function takes a sequence, described by a list of frames, and creates
* a list of iocbq structures to describe the sequence. This iocbq list will be
* used to issue to the generic unsolicited sequence handler. This routine
* returns a pointer to the first iocbq in the list. If the function is unable
* to allocate an iocbq then it throw out the received frames that were not
* able to be described and return a pointer to the first iocbq. If unable to
* allocate any iocbqs (including the first) this function will return NULL.
**/
static struct lpfc_iocbq *
lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
{
struct hbq_dmabuf *hbq_buf;
struct lpfc_dmabuf *d_buf, *n_buf;
struct lpfc_iocbq *first_iocbq, *iocbq;
struct fc_frame_header *fc_hdr;
uint32_t sid;
uint32_t len, tot_len;
fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
/* remove from receive buffer list */
list_del_init(&seq_dmabuf->hbuf.list);
lpfc_update_rcv_time_stamp(vport);
/* get the Remote Port's SID */
sid = sli4_sid_from_fc_hdr(fc_hdr);
tot_len = 0;
/* Get an iocbq struct to fill in. */
first_iocbq = lpfc_sli_get_iocbq(vport->phba);
if (first_iocbq) {
/* Initialize the first IOCB. */
first_iocbq->wcqe_cmpl.total_data_placed = 0;
bf_set(lpfc_wcqe_c_status, &first_iocbq->wcqe_cmpl,
IOSTAT_SUCCESS);
first_iocbq->vport = vport;
/* Check FC Header to see what TYPE of frame we are rcv'ing */
if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
bf_set(els_rsp64_sid, &first_iocbq->wqe.xmit_els_rsp,
sli4_did_from_fc_hdr(fc_hdr));
}
bf_set(wqe_ctxt_tag, &first_iocbq->wqe.xmit_els_rsp.wqe_com,
NO_XRI);
bf_set(wqe_rcvoxid, &first_iocbq->wqe.xmit_els_rsp.wqe_com,
be16_to_cpu(fc_hdr->fh_ox_id));
/* put the first buffer into the first iocb */
tot_len = bf_get(lpfc_rcqe_length,
&seq_dmabuf->cq_event.cqe.rcqe_cmpl);
first_iocbq->cmd_dmabuf = &seq_dmabuf->dbuf;
first_iocbq->bpl_dmabuf = NULL;
/* Keep track of the BDE count */
first_iocbq->wcqe_cmpl.word3 = 1;
if (tot_len > LPFC_DATA_BUF_SIZE)
first_iocbq->wqe.gen_req.bde.tus.f.bdeSize =
LPFC_DATA_BUF_SIZE;
else
first_iocbq->wqe.gen_req.bde.tus.f.bdeSize = tot_len;
first_iocbq->wcqe_cmpl.total_data_placed = tot_len;
bf_set(wqe_els_did, &first_iocbq->wqe.xmit_els_rsp.wqe_dest,
sid);
}
iocbq = first_iocbq;
/*
* Each IOCBq can have two Buffers assigned, so go through the list
* of buffers for this sequence and save two buffers in each IOCBq
*/
list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
if (!iocbq) {
lpfc_in_buf_free(vport->phba, d_buf);
continue;
}
if (!iocbq->bpl_dmabuf) {
iocbq->bpl_dmabuf = d_buf;
iocbq->wcqe_cmpl.word3++;
/* We need to get the size out of the right CQE */
hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
len = bf_get(lpfc_rcqe_length,
&hbq_buf->cq_event.cqe.rcqe_cmpl);
iocbq->unsol_rcv_len = len;
iocbq->wcqe_cmpl.total_data_placed += len;
tot_len += len;
} else {
iocbq = lpfc_sli_get_iocbq(vport->phba);
if (!iocbq) {
if (first_iocbq) {
bf_set(lpfc_wcqe_c_status,
&first_iocbq->wcqe_cmpl,
IOSTAT_SUCCESS);
first_iocbq->wcqe_cmpl.parameter =
IOERR_NO_RESOURCES;
}
lpfc_in_buf_free(vport->phba, d_buf);
continue;
}
/* We need to get the size out of the right CQE */
hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
len = bf_get(lpfc_rcqe_length,
&hbq_buf->cq_event.cqe.rcqe_cmpl);
iocbq->cmd_dmabuf = d_buf;
iocbq->bpl_dmabuf = NULL;
iocbq->wcqe_cmpl.word3 = 1;
if (len > LPFC_DATA_BUF_SIZE)
iocbq->wqe.xmit_els_rsp.bde.tus.f.bdeSize =
LPFC_DATA_BUF_SIZE;
else
iocbq->wqe.xmit_els_rsp.bde.tus.f.bdeSize =
len;
tot_len += len;
iocbq->wcqe_cmpl.total_data_placed = tot_len;
bf_set(wqe_els_did, &iocbq->wqe.xmit_els_rsp.wqe_dest,
sid);
list_add_tail(&iocbq->list, &first_iocbq->list);
}
}
/* Free the sequence's header buffer */
if (!first_iocbq)
lpfc_in_buf_free(vport->phba, &seq_dmabuf->dbuf);
return first_iocbq;
}
static void
lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
struct hbq_dmabuf *seq_dmabuf)
{
struct fc_frame_header *fc_hdr;
struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
struct lpfc_hba *phba = vport->phba;
fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
iocbq = lpfc_prep_seq(vport, seq_dmabuf);
if (!iocbq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2707 Ring %d handler: Failed to allocate "
"iocb Rctl x%x Type x%x received\n",
LPFC_ELS_RING,
fc_hdr->fh_r_ctl, fc_hdr->fh_type);
return;
}
if (!lpfc_complete_unsol_iocb(phba,
phba->sli4_hba.els_wq->pring,
iocbq, fc_hdr->fh_r_ctl,
fc_hdr->fh_type)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2540 Ring %d handler: unexpected Rctl "
"x%x Type x%x received\n",
LPFC_ELS_RING,
fc_hdr->fh_r_ctl, fc_hdr->fh_type);
lpfc_in_buf_free(phba, &seq_dmabuf->dbuf);
}
/* Free iocb created in lpfc_prep_seq */
list_for_each_entry_safe(curr_iocb, next_iocb,
&iocbq->list, list) {
list_del_init(&curr_iocb->list);
lpfc_sli_release_iocbq(phba, curr_iocb);
}
lpfc_sli_release_iocbq(phba, iocbq);
}
static void
lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf;
if (pcmd && pcmd->virt)
dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
kfree(pcmd);
lpfc_sli_release_iocbq(phba, cmdiocb);
lpfc_drain_txq(phba);
}
static void
lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
struct hbq_dmabuf *dmabuf)
{
struct fc_frame_header *fc_hdr;
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *iocbq = NULL;
union lpfc_wqe128 *pwqe;
struct lpfc_dmabuf *pcmd = NULL;
uint32_t frame_len;
int rc;
unsigned long iflags;
fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
/* Send the received frame back */
iocbq = lpfc_sli_get_iocbq(phba);
if (!iocbq) {
/* Queue cq event and wakeup worker thread to process it */
spin_lock_irqsave(&phba->hbalock, iflags);
list_add_tail(&dmabuf->cq_event.list,
&phba->sli4_hba.sp_queue_event);
phba->hba_flag |= HBA_SP_QUEUE_EVT;
spin_unlock_irqrestore(&phba->hbalock, iflags);
lpfc_worker_wake_up(phba);
return;
}
/* Allocate buffer for command payload */
pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (pcmd)
pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
&pcmd->phys);
if (!pcmd || !pcmd->virt)
goto exit;
INIT_LIST_HEAD(&pcmd->list);
/* copyin the payload */
memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
iocbq->cmd_dmabuf = pcmd;
iocbq->vport = vport;
iocbq->cmd_flag &= ~LPFC_FIP_ELS_ID_MASK;
iocbq->cmd_flag |= LPFC_USE_FCPWQIDX;
iocbq->num_bdes = 0;
pwqe = &iocbq->wqe;
/* fill in BDE's for command */
pwqe->gen_req.bde.addrHigh = putPaddrHigh(pcmd->phys);
pwqe->gen_req.bde.addrLow = putPaddrLow(pcmd->phys);
pwqe->gen_req.bde.tus.f.bdeSize = frame_len;
pwqe->gen_req.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
pwqe->send_frame.frame_len = frame_len;
pwqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((__be32 *)fc_hdr));
pwqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((__be32 *)fc_hdr + 1));
pwqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((__be32 *)fc_hdr + 2));
pwqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((__be32 *)fc_hdr + 3));
pwqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((__be32 *)fc_hdr + 4));
pwqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((__be32 *)fc_hdr + 5));
pwqe->generic.wqe_com.word7 = 0;
pwqe->generic.wqe_com.word10 = 0;
bf_set(wqe_cmnd, &pwqe->generic.wqe_com, CMD_SEND_FRAME);
bf_set(wqe_sof, &pwqe->generic.wqe_com, 0x2E); /* SOF byte */
bf_set(wqe_eof, &pwqe->generic.wqe_com, 0x41); /* EOF byte */
bf_set(wqe_lenloc, &pwqe->generic.wqe_com, 1);
bf_set(wqe_xbl, &pwqe->generic.wqe_com, 1);
bf_set(wqe_dbde, &pwqe->generic.wqe_com, 1);
bf_set(wqe_xc, &pwqe->generic.wqe_com, 1);
bf_set(wqe_cmd_type, &pwqe->generic.wqe_com, 0xA);
bf_set(wqe_cqid, &pwqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_xri_tag, &pwqe->generic.wqe_com, iocbq->sli4_xritag);
bf_set(wqe_reqtag, &pwqe->generic.wqe_com, iocbq->iotag);
bf_set(wqe_class, &pwqe->generic.wqe_com, CLASS3);
pwqe->generic.wqe_com.abort_tag = iocbq->iotag;
iocbq->cmd_cmpl = lpfc_sli4_mds_loopback_cmpl;
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
if (rc == IOCB_ERROR)
goto exit;
lpfc_in_buf_free(phba, &dmabuf->dbuf);
return;
exit:
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"2023 Unable to process MDS loopback frame\n");
if (pcmd && pcmd->virt)
dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
kfree(pcmd);
if (iocbq)
lpfc_sli_release_iocbq(phba, iocbq);
lpfc_in_buf_free(phba, &dmabuf->dbuf);
}
/**
* lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
* @phba: Pointer to HBA context object.
* @dmabuf: Pointer to a dmabuf that describes the FC sequence.
*
* This function is called with no lock held. This function processes all
* the received buffers and gives it to upper layers when a received buffer
* indicates that it is the final frame in the sequence. The interrupt
* service routine processes received buffers at interrupt contexts.
* Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
* appropriate receive function when the final frame in a sequence is received.
**/
void
lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
struct hbq_dmabuf *dmabuf)
{
struct hbq_dmabuf *seq_dmabuf;
struct fc_frame_header *fc_hdr;
struct lpfc_vport *vport;
uint32_t fcfi;
uint32_t did;
/* Process each received buffer */
fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
vport = phba->pport;
/* Handle MDS Loopback frames */
if (!(phba->pport->load_flag & FC_UNLOADING))
lpfc_sli4_handle_mds_loopback(vport, dmabuf);
else
lpfc_in_buf_free(phba, &dmabuf->dbuf);
return;
}
/* check to see if this a valid type of frame */
if (lpfc_fc_frame_check(phba, fc_hdr)) {
lpfc_in_buf_free(phba, &dmabuf->dbuf);
return;
}
if ((bf_get(lpfc_cqe_code,
&dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
&dmabuf->cq_event.cqe.rcqe_cmpl);
else
fcfi = bf_get(lpfc_rcqe_fcf_id,
&dmabuf->cq_event.cqe.rcqe_cmpl);
if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
vport = phba->pport;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2023 MDS Loopback %d bytes\n",
bf_get(lpfc_rcqe_length,
&dmabuf->cq_event.cqe.rcqe_cmpl));
/* Handle MDS Loopback frames */
lpfc_sli4_handle_mds_loopback(vport, dmabuf);
return;
}
/* d_id this frame is directed to */
did = sli4_did_from_fc_hdr(fc_hdr);
vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
if (!vport) {
/* throw out the frame */
lpfc_in_buf_free(phba, &dmabuf->dbuf);
return;
}
/* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
(did != Fabric_DID)) {
/*
* Throw out the frame if we are not pt2pt.
* The pt2pt protocol allows for discovery frames
* to be received without a registered VPI.
*/
if (!(vport->fc_flag & FC_PT2PT) ||
(phba->link_state == LPFC_HBA_READY)) {
lpfc_in_buf_free(phba, &dmabuf->dbuf);
return;
}
}
/* Handle the basic abort sequence (BA_ABTS) event */
if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
lpfc_sli4_handle_unsol_abort(vport, dmabuf);
return;
}
/* Link this frame */
seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
if (!seq_dmabuf) {
/* unable to add frame to vport - throw it out */
lpfc_in_buf_free(phba, &dmabuf->dbuf);
return;
}
/* If not last frame in sequence continue processing frames. */
if (!lpfc_seq_complete(seq_dmabuf))
return;
/* Send the complete sequence to the upper layer protocol */
lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
}
/**
* lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to post rpi header templates to the
* HBA consistent with the SLI-4 interface spec. This routine
* posts a SLI4_PAGE_SIZE memory region to the port to hold up to
* SLI4_PAGE_SIZE modulo 64 rpi context headers.
*
* This routine does not require any locks. It's usage is expected
* to be driver load or reset recovery when the driver is
* sequential.
*
* Return codes
* 0 - successful
* -EIO - The mailbox failed to complete successfully.
* When this error occurs, the driver is not guaranteed
* to have any rpi regions posted to the device and
* must either attempt to repost the regions or take a
* fatal error.
**/
int
lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
{
struct lpfc_rpi_hdr *rpi_page;
uint32_t rc = 0;
uint16_t lrpi = 0;
/* SLI4 ports that support extents do not require RPI headers. */
if (!phba->sli4_hba.rpi_hdrs_in_use)
goto exit;
if (phba->sli4_hba.extents_in_use)
return -EIO;
list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
/*
* Assign the rpi headers a physical rpi only if the driver
* has not initialized those resources. A port reset only
* needs the headers posted.
*/
if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
LPFC_RPI_RSRC_RDY)
rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2008 Error %d posting all rpi "
"headers\n", rc);
rc = -EIO;
break;
}
}
exit:
bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
LPFC_RPI_RSRC_RDY);
return rc;
}
/**
* lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
* @phba: pointer to lpfc hba data structure.
* @rpi_page: pointer to the rpi memory region.
*
* This routine is invoked to post a single rpi header to the
* HBA consistent with the SLI-4 interface spec. This memory region
* maps up to 64 rpi context regions.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
* -EIO - The mailbox failed to complete successfully.
**/
int
lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
{
LPFC_MBOXQ_t *mboxq;
struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
uint32_t rc = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
/* SLI4 ports that support extents do not require RPI headers. */
if (!phba->sli4_hba.rpi_hdrs_in_use)
return rc;
if (phba->sli4_hba.extents_in_use)
return -EIO;
/* The port is notified of the header region via a mailbox command. */
mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2001 Unable to allocate memory for issuing "
"SLI_CONFIG_SPECIAL mailbox command\n");
return -ENOMEM;
}
/* Post all rpi memory regions to the port. */
hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
sizeof(struct lpfc_mbx_post_hdr_tmpl) -
sizeof(struct lpfc_sli4_cfg_mhdr),
LPFC_SLI4_MBX_EMBED);
/* Post the physical rpi to the port for this rpi header. */
bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
rpi_page->start_rpi);
bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
hdr_tmpl, rpi_page->page_count);
hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
mempool_free(mboxq, phba->mbox_mem_pool);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2514 POST_RPI_HDR mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
rc = -ENXIO;
} else {
/*
* The next_rpi stores the next logical module-64 rpi value used
* to post physical rpis in subsequent rpi postings.
*/
spin_lock_irq(&phba->hbalock);
phba->sli4_hba.next_rpi = rpi_page->next_rpi;
spin_unlock_irq(&phba->hbalock);
}
return rc;
}
/**
* lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to post rpi header templates to the
* HBA consistent with the SLI-4 interface spec. This routine
* posts a SLI4_PAGE_SIZE memory region to the port to hold up to
* SLI4_PAGE_SIZE modulo 64 rpi context headers.
*
* Returns
* A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
* LPFC_RPI_ALLOC_ERROR if no rpis are available.
**/
int
lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
{
unsigned long rpi;
uint16_t max_rpi, rpi_limit;
uint16_t rpi_remaining, lrpi = 0;
struct lpfc_rpi_hdr *rpi_hdr;
unsigned long iflag;
/*
* Fetch the next logical rpi. Because this index is logical,
* the driver starts at 0 each time.
*/
spin_lock_irqsave(&phba->hbalock, iflag);
max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
rpi_limit = phba->sli4_hba.next_rpi;
rpi = find_first_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit);
if (rpi >= rpi_limit)
rpi = LPFC_RPI_ALLOC_ERROR;
else {
set_bit(rpi, phba->sli4_hba.rpi_bmask);
phba->sli4_hba.max_cfg_param.rpi_used++;
phba->sli4_hba.rpi_count++;
}
lpfc_printf_log(phba, KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"0001 Allocated rpi:x%x max:x%x lim:x%x\n",
(int) rpi, max_rpi, rpi_limit);
/*
* Don't try to allocate more rpi header regions if the device limit
* has been exhausted.
*/
if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
(phba->sli4_hba.rpi_count >= max_rpi)) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
return rpi;
}
/*
* RPI header postings are not required for SLI4 ports capable of
* extents.
*/
if (!phba->sli4_hba.rpi_hdrs_in_use) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
return rpi;
}
/*
* If the driver is running low on rpi resources, allocate another
* page now. Note that the next_rpi value is used because
* it represents how many are actually in use whereas max_rpi notes
* how many are supported max by the device.
*/
rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
spin_unlock_irqrestore(&phba->hbalock, iflag);
if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
if (!rpi_hdr) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2002 Error Could not grow rpi "
"count\n");
} else {
lrpi = rpi_hdr->start_rpi;
rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
}
}
return rpi;
}
/**
* __lpfc_sli4_free_rpi - Release an rpi for reuse.
* @phba: pointer to lpfc hba data structure.
* @rpi: rpi to free
*
* This routine is invoked to release an rpi to the pool of
* available rpis maintained by the driver.
**/
static void
__lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
{
/*
* if the rpi value indicates a prior unreg has already
* been done, skip the unreg.
*/
if (rpi == LPFC_RPI_ALLOC_ERROR)
return;
if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
phba->sli4_hba.rpi_count--;
phba->sli4_hba.max_cfg_param.rpi_used--;
} else {
lpfc_printf_log(phba, KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"2016 rpi %x not inuse\n",
rpi);
}
}
/**
* lpfc_sli4_free_rpi - Release an rpi for reuse.
* @phba: pointer to lpfc hba data structure.
* @rpi: rpi to free
*
* This routine is invoked to release an rpi to the pool of
* available rpis maintained by the driver.
**/
void
lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
{
spin_lock_irq(&phba->hbalock);
__lpfc_sli4_free_rpi(phba, rpi);
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli4_remove_rpis - Remove the rpi bitmask region
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to remove the memory region that
* provided rpi via a bitmask.
**/
void
lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
{
kfree(phba->sli4_hba.rpi_bmask);
kfree(phba->sli4_hba.rpi_ids);
bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
}
/**
* lpfc_sli4_resume_rpi - Remove the rpi bitmask region
* @ndlp: pointer to lpfc nodelist data structure.
* @cmpl: completion call-back.
* @arg: data to load as MBox 'caller buffer information'
*
* This routine is invoked to remove the memory region that
* provided rpi via a bitmask.
**/
int
lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
{
LPFC_MBOXQ_t *mboxq;
struct lpfc_hba *phba = ndlp->phba;
int rc;
/* The port is notified of the header region via a mailbox command. */
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
/* If cmpl assigned, then this nlp_get pairs with
* lpfc_mbx_cmpl_resume_rpi.
*
* Else cmpl is NULL, then this nlp_get pairs with
* lpfc_sli_def_mbox_cmpl.
*/
if (!lpfc_nlp_get(ndlp)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2122 %s: Failed to get nlp ref\n",
__func__);
mempool_free(mboxq, phba->mbox_mem_pool);
return -EIO;
}
/* Post all rpi memory regions to the port. */
lpfc_resume_rpi(mboxq, ndlp);
if (cmpl) {
mboxq->mbox_cmpl = cmpl;
mboxq->ctx_buf = arg;
} else
mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mboxq->ctx_ndlp = ndlp;
mboxq->vport = ndlp->vport;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2010 Resume RPI Mailbox failed "
"status %d, mbxStatus x%x\n", rc,
bf_get(lpfc_mqe_status, &mboxq->u.mqe));
lpfc_nlp_put(ndlp);
mempool_free(mboxq, phba->mbox_mem_pool);
return -EIO;
}
return 0;
}
/**
* lpfc_sli4_init_vpi - Initialize a vpi with the port
* @vport: Pointer to the vport for which the vpi is being initialized
*
* This routine is invoked to activate a vpi with the port.
*
* Returns:
* 0 success
* -Evalue otherwise
**/
int
lpfc_sli4_init_vpi(struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *mboxq;
int rc = 0;
int retval = MBX_SUCCESS;
uint32_t mbox_tmo;
struct lpfc_hba *phba = vport->phba;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
lpfc_init_vpi(phba, mboxq, vport->vpi);
mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
if (rc != MBX_SUCCESS) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2022 INIT VPI Mailbox failed "
"status %d, mbxStatus x%x\n", rc,
bf_get(lpfc_mqe_status, &mboxq->u.mqe));
retval = -EIO;
}
if (rc != MBX_TIMEOUT)
mempool_free(mboxq, vport->phba->mbox_mem_pool);
return retval;
}
/**
* lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
* @phba: pointer to lpfc hba data structure.
* @mboxq: Pointer to mailbox object.
*
* This routine is invoked to manually add a single FCF record. The caller
* must pass a completely initialized FCF_Record. This routine takes
* care of the nonembedded mailbox operations.
**/
static void
lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
void *virt_addr;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t shdr_status, shdr_add_status;
virt_addr = mboxq->sge_array->addr[0];
/* The IOCTL status is embedded in the mailbox subheader. */
shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if ((shdr_status || shdr_add_status) &&
(shdr_status != STATUS_FCF_IN_USE))
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2558 ADD_FCF_RECORD mailbox failed with "
"status x%x add_status x%x\n",
shdr_status, shdr_add_status);
lpfc_sli4_mbox_cmd_free(phba, mboxq);
}
/**
* lpfc_sli4_add_fcf_record - Manually add an FCF Record.
* @phba: pointer to lpfc hba data structure.
* @fcf_record: pointer to the initialized fcf record to add.
*
* This routine is invoked to manually add a single FCF record. The caller
* must pass a completely initialized FCF_Record. This routine takes
* care of the nonembedded mailbox operations.
**/
int
lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
{
int rc = 0;
LPFC_MBOXQ_t *mboxq;
uint8_t *bytep;
void *virt_addr;
struct lpfc_mbx_sge sge;
uint32_t alloc_len, req_len;
uint32_t fcfindex;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2009 Failed to allocate mbox for ADD_FCF cmd\n");
return -ENOMEM;
}
req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
sizeof(uint32_t);
/* Allocate DMA memory and set up the non-embedded mailbox command */
alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
req_len, LPFC_SLI4_MBX_NEMBED);
if (alloc_len < req_len) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2523 Allocated DMA memory size (x%x) is "
"less than the requested DMA memory "
"size (x%x)\n", alloc_len, req_len);
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return -ENOMEM;
}
/*
* Get the first SGE entry from the non-embedded DMA memory. This
* routine only uses a single SGE.
*/
lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
virt_addr = mboxq->sge_array->addr[0];
/*
* Configure the FCF record for FCFI 0. This is the driver's
* hardcoded default and gets used in nonFIP mode.
*/
fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
/*
* Copy the fcf_index and the FCF Record Data. The data starts after
* the FCoE header plus word10. The data copy needs to be endian
* correct.
*/
bytep += sizeof(uint32_t);
lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2515 ADD_FCF_RECORD mailbox failed with "
"status 0x%x\n", rc);
lpfc_sli4_mbox_cmd_free(phba, mboxq);
rc = -EIO;
} else
rc = 0;
return rc;
}
/**
* lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
* @phba: pointer to lpfc hba data structure.
* @fcf_record: pointer to the fcf record to write the default data.
* @fcf_index: FCF table entry index.
*
* This routine is invoked to build the driver's default FCF record. The
* values used are hardcoded. This routine handles memory initialization.
*
**/
void
lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
struct fcf_record *fcf_record,
uint16_t fcf_index)
{
memset(fcf_record, 0, sizeof(struct fcf_record));
fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
LPFC_FCF_FPMA | LPFC_FCF_SPMA);
/* Set the VLAN bit map */
if (phba->valid_vlan) {
fcf_record->vlan_bitmap[phba->vlan_id / 8]
= 1 << (phba->vlan_id % 8);
}
}
/**
* lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
* @phba: pointer to lpfc hba data structure.
* @fcf_index: FCF table entry offset.
*
* This routine is invoked to scan the entire FCF table by reading FCF
* record and processing it one at a time starting from the @fcf_index
* for initial FCF discovery or fast FCF failover rediscovery.
*
* Return 0 if the mailbox command is submitted successfully, none 0
* otherwise.
**/
int
lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
{
int rc = 0, error;
LPFC_MBOXQ_t *mboxq;
phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2000 Failed to allocate mbox for "
"READ_FCF cmd\n");
error = -ENOMEM;
goto fail_fcf_scan;
}
/* Construct the read FCF record mailbox command */
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
if (rc) {
error = -EINVAL;
goto fail_fcf_scan;
}
/* Issue the mailbox command asynchronously */
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
spin_lock_irq(&phba->hbalock);
phba->hba_flag |= FCF_TS_INPROG;
spin_unlock_irq(&phba->hbalock);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
error = -EIO;
else {
/* Reset eligible FCF count for new scan */
if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
phba->fcf.eligible_fcf_cnt = 0;
error = 0;
}
fail_fcf_scan:
if (error) {
if (mboxq)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
/* FCF scan failed, clear FCF_TS_INPROG flag */
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~FCF_TS_INPROG;
spin_unlock_irq(&phba->hbalock);
}
return error;
}
/**
* lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
* @phba: pointer to lpfc hba data structure.
* @fcf_index: FCF table entry offset.
*
* This routine is invoked to read an FCF record indicated by @fcf_index
* and to use it for FLOGI roundrobin FCF failover.
*
* Return 0 if the mailbox command is submitted successfully, none 0
* otherwise.
**/
int
lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
{
int rc = 0, error;
LPFC_MBOXQ_t *mboxq;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
"2763 Failed to allocate mbox for "
"READ_FCF cmd\n");
error = -ENOMEM;
goto fail_fcf_read;
}
/* Construct the read FCF record mailbox command */
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
if (rc) {
error = -EINVAL;
goto fail_fcf_read;
}
/* Issue the mailbox command asynchronously */
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
error = -EIO;
else
error = 0;
fail_fcf_read:
if (error && mboxq)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return error;
}
/**
* lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
* @phba: pointer to lpfc hba data structure.
* @fcf_index: FCF table entry offset.
*
* This routine is invoked to read an FCF record indicated by @fcf_index to
* determine whether it's eligible for FLOGI roundrobin failover list.
*
* Return 0 if the mailbox command is submitted successfully, none 0
* otherwise.
**/
int
lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
{
int rc = 0, error;
LPFC_MBOXQ_t *mboxq;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
"2758 Failed to allocate mbox for "
"READ_FCF cmd\n");
error = -ENOMEM;
goto fail_fcf_read;
}
/* Construct the read FCF record mailbox command */
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
if (rc) {
error = -EINVAL;
goto fail_fcf_read;
}
/* Issue the mailbox command asynchronously */
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
error = -EIO;
else
error = 0;
fail_fcf_read:
if (error && mboxq)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return error;
}
/**
* lpfc_check_next_fcf_pri_level
* @phba: pointer to the lpfc_hba struct for this port.
* This routine is called from the lpfc_sli4_fcf_rr_next_index_get
* routine when the rr_bmask is empty. The FCF indecies are put into the
* rr_bmask based on their priority level. Starting from the highest priority
* to the lowest. The most likely FCF candidate will be in the highest
* priority group. When this routine is called it searches the fcf_pri list for
* next lowest priority group and repopulates the rr_bmask with only those
* fcf_indexes.
* returns:
* 1=success 0=failure
**/
static int
lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
{
uint16_t next_fcf_pri;
uint16_t last_index;
struct lpfc_fcf_pri *fcf_pri;
int rc;
int ret = 0;
last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
LPFC_SLI4_FCF_TBL_INDX_MAX);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"3060 Last IDX %d\n", last_index);
/* Verify the priority list has 2 or more entries */
spin_lock_irq(&phba->hbalock);
if (list_empty(&phba->fcf.fcf_pri_list) ||
list_is_singular(&phba->fcf.fcf_pri_list)) {
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"3061 Last IDX %d\n", last_index);
return 0; /* Empty rr list */
}
spin_unlock_irq(&phba->hbalock);
next_fcf_pri = 0;
/*
* Clear the rr_bmask and set all of the bits that are at this
* priority.
*/
memset(phba->fcf.fcf_rr_bmask, 0,
sizeof(*phba->fcf.fcf_rr_bmask));
spin_lock_irq(&phba->hbalock);
list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
continue;
/*
* the 1st priority that has not FLOGI failed
* will be the highest.
*/
if (!next_fcf_pri)
next_fcf_pri = fcf_pri->fcf_rec.priority;
spin_unlock_irq(&phba->hbalock);
if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
rc = lpfc_sli4_fcf_rr_index_set(phba,
fcf_pri->fcf_rec.fcf_index);
if (rc)
return 0;
}
spin_lock_irq(&phba->hbalock);
}
/*
* if next_fcf_pri was not set above and the list is not empty then
* we have failed flogis on all of them. So reset flogi failed
* and start at the beginning.
*/
if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
/*
* the 1st priority that has not FLOGI failed
* will be the highest.
*/
if (!next_fcf_pri)
next_fcf_pri = fcf_pri->fcf_rec.priority;
spin_unlock_irq(&phba->hbalock);
if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
rc = lpfc_sli4_fcf_rr_index_set(phba,
fcf_pri->fcf_rec.fcf_index);
if (rc)
return 0;
}
spin_lock_irq(&phba->hbalock);
}
} else
ret = 1;
spin_unlock_irq(&phba->hbalock);
return ret;
}
/**
* lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
* @phba: pointer to lpfc hba data structure.
*
* This routine is to get the next eligible FCF record index in a round
* robin fashion. If the next eligible FCF record index equals to the
* initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
* shall be returned, otherwise, the next eligible FCF record's index
* shall be returned.
**/
uint16_t
lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
{
uint16_t next_fcf_index;
initial_priority:
/* Search start from next bit of currently registered FCF index */
next_fcf_index = phba->fcf.current_rec.fcf_indx;
next_priority:
/* Determine the next fcf index to check */
next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
LPFC_SLI4_FCF_TBL_INDX_MAX,
next_fcf_index);
/* Wrap around condition on phba->fcf.fcf_rr_bmask */
if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
/*
* If we have wrapped then we need to clear the bits that
* have been tested so that we can detect when we should
* change the priority level.
*/
next_fcf_index = find_first_bit(phba->fcf.fcf_rr_bmask,
LPFC_SLI4_FCF_TBL_INDX_MAX);
}
/* Check roundrobin failover list empty condition */
if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
next_fcf_index == phba->fcf.current_rec.fcf_indx) {
/*
* If next fcf index is not found check if there are lower
* Priority level fcf's in the fcf_priority list.
* Set up the rr_bmask with all of the avaiable fcf bits
* at that level and continue the selection process.
*/
if (lpfc_check_next_fcf_pri_level(phba))
goto initial_priority;
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2844 No roundrobin failover FCF available\n");
return LPFC_FCOE_FCF_NEXT_NONE;
}
if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
LPFC_FCF_FLOGI_FAILED) {
if (list_is_singular(&phba->fcf.fcf_pri_list))
return LPFC_FCOE_FCF_NEXT_NONE;
goto next_priority;
}
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2845 Get next roundrobin failover FCF (x%x)\n",
next_fcf_index);
return next_fcf_index;
}
/**
* lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
* @phba: pointer to lpfc hba data structure.
* @fcf_index: index into the FCF table to 'set'
*
* This routine sets the FCF record index in to the eligible bmask for
* roundrobin failover search. It checks to make sure that the index
* does not go beyond the range of the driver allocated bmask dimension
* before setting the bit.
*
* Returns 0 if the index bit successfully set, otherwise, it returns
* -EINVAL.
**/
int
lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
{
if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"2610 FCF (x%x) reached driver's book "
"keeping dimension:x%x\n",
fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
return -EINVAL;
}
/* Set the eligible FCF record index bmask */
set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2790 Set FCF (x%x) to roundrobin FCF failover "
"bmask\n", fcf_index);
return 0;
}
/**
* lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
* @phba: pointer to lpfc hba data structure.
* @fcf_index: index into the FCF table to 'clear'
*
* This routine clears the FCF record index from the eligible bmask for
* roundrobin failover search. It checks to make sure that the index
* does not go beyond the range of the driver allocated bmask dimension
* before clearing the bit.
**/
void
lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
{
struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"2762 FCF (x%x) reached driver's book "
"keeping dimension:x%x\n",
fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
return;
}
/* Clear the eligible FCF record index bmask */
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
list) {
if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
list_del_init(&fcf_pri->list);
break;
}
}
spin_unlock_irq(&phba->hbalock);
clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2791 Clear FCF (x%x) from roundrobin failover "
"bmask\n", fcf_index);
}
/**
* lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
* @phba: pointer to lpfc hba data structure.
* @mbox: An allocated pointer to type LPFC_MBOXQ_t
*
* This routine is the completion routine for the rediscover FCF table mailbox
* command. If the mailbox command returned failure, it will try to stop the
* FCF rediscover wait timer.
**/
static void
lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
uint32_t shdr_status, shdr_add_status;
redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
shdr_status = bf_get(lpfc_mbox_hdr_status,
&redisc_fcf->header.cfg_shdr.response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
&redisc_fcf->header.cfg_shdr.response);
if (shdr_status || shdr_add_status) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"2746 Requesting for FCF rediscovery failed "
"status x%x add_status x%x\n",
shdr_status, shdr_add_status);
if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* CVL event triggered FCF rediscover request failed,
* last resort to re-try current registered FCF entry.
*/
lpfc_retry_pport_discovery(phba);
} else {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* DEAD FCF event triggered FCF rediscover request
* failed, last resort to fail over as a link down
* to FCF registration.
*/
lpfc_sli4_fcf_dead_failthrough(phba);
}
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2775 Start FCF rediscover quiescent timer\n");
/*
* Start FCF rediscovery wait timer for pending FCF
* before rescan FCF record table.
*/
lpfc_fcf_redisc_wait_start_timer(phba);
}
mempool_free(mbox, phba->mbox_mem_pool);
}
/**
* lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to request for rediscovery of the entire FCF table
* by the port.
**/
int
lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mbox;
struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
int rc, length;
/* Cancel retry delay timers to all vports before FCF rediscover */
lpfc_cancel_all_vport_retry_delay_timer(phba);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2745 Failed to allocate mbox for "
"requesting FCF rediscover.\n");
return -ENOMEM;
}
length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
length, LPFC_SLI4_MBX_EMBED);
redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
/* Set count to 0 for invalidating the entire FCF database */
bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
/* Issue the mailbox command asynchronously */
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
return -EIO;
}
return 0;
}
/**
* lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
* @phba: pointer to lpfc hba data structure.
*
* This function is the failover routine as a last resort to the FCF DEAD
* event when driver failed to perform fast FCF failover.
**/
void
lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
{
uint32_t link_state;
/*
* Last resort as FCF DEAD event failover will treat this as
* a link down, but save the link state because we don't want
* it to be changed to Link Down unless it is already down.
*/
link_state = phba->link_state;
lpfc_linkdown(phba);
phba->link_state = link_state;
/* Unregister FCF if no devices connected to it */
lpfc_unregister_unused_fcf(phba);
}
/**
* lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
* @phba: pointer to lpfc hba data structure.
* @rgn23_data: pointer to configure region 23 data.
*
* This function gets SLI3 port configure region 23 data through memory dump
* mailbox command. When it successfully retrieves data, the size of the data
* will be returned, otherwise, 0 will be returned.
**/
static uint32_t
lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
{
LPFC_MBOXQ_t *pmb = NULL;
MAILBOX_t *mb;
uint32_t offset = 0;
int rc;
if (!rgn23_data)
return 0;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2600 failed to allocate mailbox memory\n");
return 0;
}
mb = &pmb->u.mb;
do {
lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2601 failed to read config "
"region 23, rc 0x%x Status 0x%x\n",
rc, mb->mbxStatus);
mb->un.varDmp.word_cnt = 0;
}
/*
* dump mem may return a zero when finished or we got a
* mailbox error, either way we are done.
*/
if (mb->un.varDmp.word_cnt == 0)
break;
if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
rgn23_data + offset,
mb->un.varDmp.word_cnt);
offset += mb->un.varDmp.word_cnt;
} while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
mempool_free(pmb, phba->mbox_mem_pool);
return offset;
}
/**
* lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
* @phba: pointer to lpfc hba data structure.
* @rgn23_data: pointer to configure region 23 data.
*
* This function gets SLI4 port configure region 23 data through memory dump
* mailbox command. When it successfully retrieves data, the size of the data
* will be returned, otherwise, 0 will be returned.
**/
static uint32_t
lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
{
LPFC_MBOXQ_t *mboxq = NULL;
struct lpfc_dmabuf *mp = NULL;
struct lpfc_mqe *mqe;
uint32_t data_length = 0;
int rc;
if (!rgn23_data)
return 0;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3105 failed to allocate mailbox memory\n");
return 0;
}
if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
goto out;
mqe = &mboxq->u.mqe;
mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc)
goto out;
data_length = mqe->un.mb_words[5];
if (data_length == 0)
goto out;
if (data_length > DMP_RGN23_SIZE) {
data_length = 0;
goto out;
}
lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
out:
lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);
return data_length;
}
/**
* lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
* @phba: pointer to lpfc hba data structure.
*
* This function read region 23 and parse TLV for port status to
* decide if the user disaled the port. If the TLV indicates the
* port is disabled, the hba_flag is set accordingly.
**/
void
lpfc_sli_read_link_ste(struct lpfc_hba *phba)
{
uint8_t *rgn23_data = NULL;
uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
uint32_t offset = 0;
/* Get adapter Region 23 data */
rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
if (!rgn23_data)
goto out;
if (phba->sli_rev < LPFC_SLI_REV4)
data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
else {
if_type = bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf);
if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
goto out;
data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
}
if (!data_size)
goto out;
/* Check the region signature first */
if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2619 Config region 23 has bad signature\n");
goto out;
}
offset += 4;
/* Check the data structure version */
if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2620 Config region 23 has bad version\n");
goto out;
}
offset += 4;
/* Parse TLV entries in the region */
while (offset < data_size) {
if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
break;
/*
* If the TLV is not driver specific TLV or driver id is
* not linux driver id, skip the record.
*/
if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
(rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
(rgn23_data[offset + 3] != 0)) {
offset += rgn23_data[offset + 1] * 4 + 4;
continue;
}
/* Driver found a driver specific TLV in the config region */
sub_tlv_len = rgn23_data[offset + 1] * 4;
offset += 4;
tlv_offset = 0;
/*
* Search for configured port state sub-TLV.
*/
while ((offset < data_size) &&
(tlv_offset < sub_tlv_len)) {
if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
offset += 4;
tlv_offset += 4;
break;
}
if (rgn23_data[offset] != PORT_STE_TYPE) {
offset += rgn23_data[offset + 1] * 4 + 4;
tlv_offset += rgn23_data[offset + 1] * 4 + 4;
continue;
}
/* This HBA contains PORT_STE configured */
if (!rgn23_data[offset + 2])
phba->hba_flag |= LINK_DISABLED;
goto out;
}
}
out:
kfree(rgn23_data);
return;
}
/**
* lpfc_log_fw_write_cmpl - logs firmware write completion status
* @phba: pointer to lpfc hba data structure
* @shdr_status: wr_object rsp's status field
* @shdr_add_status: wr_object rsp's add_status field
* @shdr_add_status_2: wr_object rsp's add_status_2 field
* @shdr_change_status: wr_object rsp's change_status field
* @shdr_csf: wr_object rsp's csf bit
*
* This routine is intended to be called after a firmware write completes.
* It will log next action items to be performed by the user to instantiate
* the newly downloaded firmware or reason for incompatibility.
**/
static void
lpfc_log_fw_write_cmpl(struct lpfc_hba *phba, u32 shdr_status,
u32 shdr_add_status, u32 shdr_add_status_2,
u32 shdr_change_status, u32 shdr_csf)
{
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
"4198 %s: flash_id x%02x, asic_rev x%02x, "
"status x%02x, add_status x%02x, add_status_2 x%02x, "
"change_status x%02x, csf %01x\n", __func__,
phba->sli4_hba.flash_id, phba->sli4_hba.asic_rev,
shdr_status, shdr_add_status, shdr_add_status_2,
shdr_change_status, shdr_csf);
if (shdr_add_status == LPFC_ADD_STATUS_INCOMPAT_OBJ) {
switch (shdr_add_status_2) {
case LPFC_ADD_STATUS_2_INCOMPAT_FLASH:
lpfc_log_msg(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
"4199 Firmware write failed: "
"image incompatible with flash x%02x\n",
phba->sli4_hba.flash_id);
break;
case LPFC_ADD_STATUS_2_INCORRECT_ASIC:
lpfc_log_msg(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
"4200 Firmware write failed: "
"image incompatible with ASIC "
"architecture x%02x\n",
phba->sli4_hba.asic_rev);
break;
default:
lpfc_log_msg(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
"4210 Firmware write failed: "
"add_status_2 x%02x\n",
shdr_add_status_2);
break;
}
} else if (!shdr_status && !shdr_add_status) {
if (shdr_change_status == LPFC_CHANGE_STATUS_FW_RESET ||
shdr_change_status == LPFC_CHANGE_STATUS_PORT_MIGRATION) {
if (shdr_csf)
shdr_change_status =
LPFC_CHANGE_STATUS_PCI_RESET;
}
switch (shdr_change_status) {
case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
lpfc_log_msg(phba, KERN_NOTICE, LOG_MBOX | LOG_SLI,
"3198 Firmware write complete: System "
"reboot required to instantiate\n");
break;
case (LPFC_CHANGE_STATUS_FW_RESET):
lpfc_log_msg(phba, KERN_NOTICE, LOG_MBOX | LOG_SLI,
"3199 Firmware write complete: "
"Firmware reset required to "
"instantiate\n");
break;
case (LPFC_CHANGE_STATUS_PORT_MIGRATION):
lpfc_log_msg(phba, KERN_NOTICE, LOG_MBOX | LOG_SLI,
"3200 Firmware write complete: Port "
"Migration or PCI Reset required to "
"instantiate\n");
break;
case (LPFC_CHANGE_STATUS_PCI_RESET):
lpfc_log_msg(phba, KERN_NOTICE, LOG_MBOX | LOG_SLI,
"3201 Firmware write complete: PCI "
"Reset required to instantiate\n");
break;
default:
break;
}
}
}
/**
* lpfc_wr_object - write an object to the firmware
* @phba: HBA structure that indicates port to create a queue on.
* @dmabuf_list: list of dmabufs to write to the port.
* @size: the total byte value of the objects to write to the port.
* @offset: the current offset to be used to start the transfer.
*
* This routine will create a wr_object mailbox command to send to the port.
* the mailbox command will be constructed using the dma buffers described in
* @dmabuf_list to create a list of BDEs. This routine will fill in as many
* BDEs that the imbedded mailbox can support. The @offset variable will be
* used to indicate the starting offset of the transfer and will also return
* the offset after the write object mailbox has completed. @size is used to
* determine the end of the object and whether the eof bit should be set.
*
* Return 0 is successful and offset will contain the new offset to use
* for the next write.
* Return negative value for error cases.
**/
int
lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
uint32_t size, uint32_t *offset)
{
struct lpfc_mbx_wr_object *wr_object;
LPFC_MBOXQ_t *mbox;
int rc = 0, i = 0;
int mbox_status = 0;
uint32_t shdr_status, shdr_add_status, shdr_add_status_2;
uint32_t shdr_change_status = 0, shdr_csf = 0;
uint32_t mbox_tmo;
struct lpfc_dmabuf *dmabuf;
uint32_t written = 0;
bool check_change_status = false;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_WRITE_OBJECT,
sizeof(struct lpfc_mbx_wr_object) -
sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
wr_object->u.request.write_offset = *offset;
sprintf((uint8_t *)wr_object->u.request.object_name, "/");
wr_object->u.request.object_name[0] =
cpu_to_le32(wr_object->u.request.object_name[0]);
bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
list_for_each_entry(dmabuf, dmabuf_list, list) {
if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
break;
wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
wr_object->u.request.bde[i].addrHigh =
putPaddrHigh(dmabuf->phys);
if (written + SLI4_PAGE_SIZE >= size) {
wr_object->u.request.bde[i].tus.f.bdeSize =
(size - written);
written += (size - written);
bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
bf_set(lpfc_wr_object_eas, &wr_object->u.request, 1);
check_change_status = true;
} else {
wr_object->u.request.bde[i].tus.f.bdeSize =
SLI4_PAGE_SIZE;
written += SLI4_PAGE_SIZE;
}
i++;
}
wr_object->u.request.bde_count = i;
bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
if (!phba->sli4_hba.intr_enable)
mbox_status = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
mbox_status = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
}
/* The mbox status needs to be maintained to detect MBOX_TIMEOUT. */
rc = mbox_status;
/* The IOCTL status is embedded in the mailbox subheader. */
shdr_status = bf_get(lpfc_mbox_hdr_status,
&wr_object->header.cfg_shdr.response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
&wr_object->header.cfg_shdr.response);
shdr_add_status_2 = bf_get(lpfc_mbox_hdr_add_status_2,
&wr_object->header.cfg_shdr.response);
if (check_change_status) {
shdr_change_status = bf_get(lpfc_wr_object_change_status,
&wr_object->u.response);
shdr_csf = bf_get(lpfc_wr_object_csf,
&wr_object->u.response);
}
if (shdr_status || shdr_add_status || shdr_add_status_2 || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3025 Write Object mailbox failed with "
"status x%x add_status x%x, add_status_2 x%x, "
"mbx status x%x\n",
shdr_status, shdr_add_status, shdr_add_status_2,
rc);
rc = -ENXIO;
*offset = shdr_add_status;
} else {
*offset += wr_object->u.response.actual_write_length;
}
if (rc || check_change_status)
lpfc_log_fw_write_cmpl(phba, shdr_status, shdr_add_status,
shdr_add_status_2, shdr_change_status,
shdr_csf);
if (!phba->sli4_hba.intr_enable)
mempool_free(mbox, phba->mbox_mem_pool);
else if (mbox_status != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
* @vport: pointer to vport data structure.
*
* This function iterate through the mailboxq and clean up all REG_LOGIN
* and REG_VPI mailbox commands associated with the vport. This function
* is called when driver want to restart discovery of the vport due to
* a Clear Virtual Link event.
**/
void
lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mb, *nextmb;
struct lpfc_nodelist *ndlp;
struct lpfc_nodelist *act_mbx_ndlp = NULL;
LIST_HEAD(mbox_cmd_list);
uint8_t restart_loop;
/* Clean up internally queued mailbox commands with the vport */
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
if (mb->vport != vport)
continue;
if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
(mb->u.mb.mbxCommand != MBX_REG_VPI))
continue;
list_move_tail(&mb->list, &mbox_cmd_list);
}
/* Clean up active mailbox command with the vport */
mb = phba->sli.mbox_active;
if (mb && (mb->vport == vport)) {
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
(mb->u.mb.mbxCommand == MBX_REG_VPI))
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
act_mbx_ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
/* This reference is local to this routine. The
* reference is removed at routine exit.
*/
act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
/* Unregister the RPI when mailbox complete */
mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
}
}
/* Cleanup any mailbox completions which are not yet processed */
do {
restart_loop = 0;
list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
/*
* If this mailox is already processed or it is
* for another vport ignore it.
*/
if ((mb->vport != vport) ||
(mb->mbox_flag & LPFC_MBX_IMED_UNREG))
continue;
if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
(mb->u.mb.mbxCommand != MBX_REG_VPI))
continue;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
/* Unregister the RPI when mailbox complete */
mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
restart_loop = 1;
spin_unlock_irq(&phba->hbalock);
spin_lock(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
spin_unlock(&ndlp->lock);
spin_lock_irq(&phba->hbalock);
break;
}
}
} while (restart_loop);
spin_unlock_irq(&phba->hbalock);
/* Release the cleaned-up mailbox commands */
while (!list_empty(&mbox_cmd_list)) {
list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
mb->ctx_ndlp = NULL;
if (ndlp) {
spin_lock(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
spin_unlock(&ndlp->lock);
lpfc_nlp_put(ndlp);
}
}
lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_UNLOCKED);
}
/* Release the ndlp with the cleaned-up active mailbox command */
if (act_mbx_ndlp) {
spin_lock(&act_mbx_ndlp->lock);
act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
spin_unlock(&act_mbx_ndlp->lock);
lpfc_nlp_put(act_mbx_ndlp);
}
}
/**
* lpfc_drain_txq - Drain the txq
* @phba: Pointer to HBA context object.
*
* This function attempt to submit IOCBs on the txq
* to the adapter. For SLI4 adapters, the txq contains
* ELS IOCBs that have been deferred because the there
* are no SGLs. This congestion can occur with large
* vport counts during node discovery.
**/
uint32_t
lpfc_drain_txq(struct lpfc_hba *phba)
{
LIST_HEAD(completions);
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *piocbq = NULL;
unsigned long iflags = 0;
char *fail_msg = NULL;
uint32_t txq_cnt = 0;
struct lpfc_queue *wq;
int ret = 0;
if (phba->link_flag & LS_MDS_LOOPBACK) {
/* MDS WQE are posted only to first WQ*/
wq = phba->sli4_hba.hdwq[0].io_wq;
if (unlikely(!wq))
return 0;
pring = wq->pring;
} else {
wq = phba->sli4_hba.els_wq;
if (unlikely(!wq))
return 0;
pring = lpfc_phba_elsring(phba);
}
if (unlikely(!pring) || list_empty(&pring->txq))
return 0;
spin_lock_irqsave(&pring->ring_lock, iflags);
list_for_each_entry(piocbq, &pring->txq, list) {
txq_cnt++;
}
if (txq_cnt > pring->txq_max)
pring->txq_max = txq_cnt;
spin_unlock_irqrestore(&pring->ring_lock, iflags);
while (!list_empty(&pring->txq)) {
spin_lock_irqsave(&pring->ring_lock, iflags);
piocbq = lpfc_sli_ringtx_get(phba, pring);
if (!piocbq) {
spin_unlock_irqrestore(&pring->ring_lock, iflags);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2823 txq empty and txq_cnt is %d\n ",
txq_cnt);
break;
}
txq_cnt--;
ret = __lpfc_sli_issue_iocb(phba, pring->ringno, piocbq, 0);
if (ret && ret != IOCB_BUSY) {
fail_msg = " - Cannot send IO ";
piocbq->cmd_flag &= ~LPFC_DRIVER_ABORTED;
}
if (fail_msg) {
piocbq->cmd_flag |= LPFC_DRIVER_ABORTED;
/* Failed means we can't issue and need to cancel */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2822 IOCB failed %s iotag 0x%x "
"xri 0x%x %d flg x%x\n",
fail_msg, piocbq->iotag,
piocbq->sli4_xritag, ret,
piocbq->cmd_flag);
list_add_tail(&piocbq->list, &completions);
fail_msg = NULL;
}
spin_unlock_irqrestore(&pring->ring_lock, iflags);
if (txq_cnt == 0 || ret == IOCB_BUSY)
break;
}
/* Cancel all the IOCBs that cannot be issued */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
return txq_cnt;
}
/**
* lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
* @phba: Pointer to HBA context object.
* @pwqeq: Pointer to command WQE.
* @sglq: Pointer to the scatter gather queue object.
*
* This routine converts the bpl or bde that is in the WQE
* to a sgl list for the sli4 hardware. The physical address
* of the bpl/bde is converted back to a virtual address.
* If the WQE contains a BPL then the list of BDE's is
* converted to sli4_sge's. If the WQE contains a single
* BDE then it is converted to a single sli_sge.
* The WQE is still in cpu endianness so the contents of
* the bpl can be used without byte swapping.
*
* Returns valid XRI = Success, NO_XRI = Failure.
*/
static uint16_t
lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
struct lpfc_sglq *sglq)
{
uint16_t xritag = NO_XRI;
struct ulp_bde64 *bpl = NULL;
struct ulp_bde64 bde;
struct sli4_sge *sgl = NULL;
struct lpfc_dmabuf *dmabuf;
union lpfc_wqe128 *wqe;
int numBdes = 0;
int i = 0;
uint32_t offset = 0; /* accumulated offset in the sg request list */
int inbound = 0; /* number of sg reply entries inbound from firmware */
uint32_t cmd;
if (!pwqeq || !sglq)
return xritag;
sgl = (struct sli4_sge *)sglq->sgl;
wqe = &pwqeq->wqe;
pwqeq->iocb.ulpIoTag = pwqeq->iotag;
cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
if (cmd == CMD_XMIT_BLS_RSP64_WQE)
return sglq->sli4_xritag;
numBdes = pwqeq->num_bdes;
if (numBdes) {
/* The addrHigh and addrLow fields within the WQE
* have not been byteswapped yet so there is no
* need to swap them back.
*/
if (pwqeq->bpl_dmabuf)
dmabuf = pwqeq->bpl_dmabuf;
else
return xritag;
bpl = (struct ulp_bde64 *)dmabuf->virt;
if (!bpl)
return xritag;
for (i = 0; i < numBdes; i++) {
/* Should already be byte swapped. */
sgl->addr_hi = bpl->addrHigh;
sgl->addr_lo = bpl->addrLow;
sgl->word2 = le32_to_cpu(sgl->word2);
if ((i+1) == numBdes)
bf_set(lpfc_sli4_sge_last, sgl, 1);
else
bf_set(lpfc_sli4_sge_last, sgl, 0);
/* swap the size field back to the cpu so we
* can assign it to the sgl.
*/
bde.tus.w = le32_to_cpu(bpl->tus.w);
sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
/* The offsets in the sgl need to be accumulated
* separately for the request and reply lists.
* The request is always first, the reply follows.
*/
switch (cmd) {
case CMD_GEN_REQUEST64_WQE:
/* add up the reply sg entries */
if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
inbound++;
/* first inbound? reset the offset */
if (inbound == 1)
offset = 0;
bf_set(lpfc_sli4_sge_offset, sgl, offset);
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_DATA);
offset += bde.tus.f.bdeSize;
break;
case CMD_FCP_TRSP64_WQE:
bf_set(lpfc_sli4_sge_offset, sgl, 0);
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_DATA);
break;
case CMD_FCP_TSEND64_WQE:
case CMD_FCP_TRECEIVE64_WQE:
bf_set(lpfc_sli4_sge_type, sgl,
bpl->tus.f.bdeFlags);
if (i < 3)
offset = 0;
else
offset += bde.tus.f.bdeSize;
bf_set(lpfc_sli4_sge_offset, sgl, offset);
break;
}
sgl->word2 = cpu_to_le32(sgl->word2);
bpl++;
sgl++;
}
} else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
/* The addrHigh and addrLow fields of the BDE have not
* been byteswapped yet so they need to be swapped
* before putting them in the sgl.
*/
sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
sgl->word2 = le32_to_cpu(sgl->word2);
bf_set(lpfc_sli4_sge_last, sgl, 1);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
}
return sglq->sli4_xritag;
}
/**
* lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
* @phba: Pointer to HBA context object.
* @qp: Pointer to HDW queue.
* @pwqe: Pointer to command WQE.
**/
int
lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
struct lpfc_iocbq *pwqe)
{
union lpfc_wqe128 *wqe = &pwqe->wqe;
struct lpfc_async_xchg_ctx *ctxp;
struct lpfc_queue *wq;
struct lpfc_sglq *sglq;
struct lpfc_sli_ring *pring;
unsigned long iflags;
uint32_t ret = 0;
/* NVME_LS and NVME_LS ABTS requests. */
if (pwqe->cmd_flag & LPFC_IO_NVME_LS) {
pring = phba->sli4_hba.nvmels_wq->pring;
lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
qp, wq_access);
sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
if (!sglq) {
spin_unlock_irqrestore(&pring->ring_lock, iflags);
return WQE_BUSY;
}
pwqe->sli4_lxritag = sglq->sli4_lxritag;
pwqe->sli4_xritag = sglq->sli4_xritag;
if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
spin_unlock_irqrestore(&pring->ring_lock, iflags);
return WQE_ERROR;
}
bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
pwqe->sli4_xritag);
ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
if (ret) {
spin_unlock_irqrestore(&pring->ring_lock, iflags);
return ret;
}
lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
lpfc_sli4_poll_eq(qp->hba_eq);
return 0;
}
/* NVME_FCREQ and NVME_ABTS requests */
if (pwqe->cmd_flag & (LPFC_IO_NVME | LPFC_IO_FCP | LPFC_IO_CMF)) {
/* Get the IO distribution (hba_wqidx) for WQ assignment. */
wq = qp->io_wq;
pring = wq->pring;
bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
qp, wq_access);
ret = lpfc_sli4_wq_put(wq, wqe);
if (ret) {
spin_unlock_irqrestore(&pring->ring_lock, iflags);
return ret;
}
lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
lpfc_sli4_poll_eq(qp->hba_eq);
return 0;
}
/* NVMET requests */
if (pwqe->cmd_flag & LPFC_IO_NVMET) {
/* Get the IO distribution (hba_wqidx) for WQ assignment. */
wq = qp->io_wq;
pring = wq->pring;
ctxp = pwqe->context_un.axchg;
sglq = ctxp->ctxbuf->sglq;
if (pwqe->sli4_xritag == NO_XRI) {
pwqe->sli4_lxritag = sglq->sli4_lxritag;
pwqe->sli4_xritag = sglq->sli4_xritag;
}
bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
pwqe->sli4_xritag);
bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
qp, wq_access);
ret = lpfc_sli4_wq_put(wq, wqe);
if (ret) {
spin_unlock_irqrestore(&pring->ring_lock, iflags);
return ret;
}
lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
lpfc_sli4_poll_eq(qp->hba_eq);
return 0;
}
return WQE_ERROR;
}
/**
* lpfc_sli4_issue_abort_iotag - SLI-4 WQE init & issue for the Abort
* @phba: Pointer to HBA context object.
* @cmdiocb: Pointer to driver command iocb object.
* @cmpl: completion function.
*
* Fill the appropriate fields for the abort WQE and call
* internal routine lpfc_sli4_issue_wqe to send the WQE
* This function is called with hbalock held and no ring_lock held.
*
* RETURNS 0 - SUCCESS
**/
int
lpfc_sli4_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
void *cmpl)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_iocbq *abtsiocb = NULL;
union lpfc_wqe128 *abtswqe;
struct lpfc_io_buf *lpfc_cmd;
int retval = IOCB_ERROR;
u16 xritag = cmdiocb->sli4_xritag;
/*
* The scsi command can not be in txq and it is in flight because the
* pCmd is still pointing at the SCSI command we have to abort. There
* is no need to search the txcmplq. Just send an abort to the FW.
*/
abtsiocb = __lpfc_sli_get_iocbq(phba);
if (!abtsiocb)
return WQE_NORESOURCE;
/* Indicate the IO is being aborted by the driver. */
cmdiocb->cmd_flag |= LPFC_DRIVER_ABORTED;
abtswqe = &abtsiocb->wqe;
memset(abtswqe, 0, sizeof(*abtswqe));
if (!lpfc_is_link_up(phba) || (phba->link_flag & LS_EXTERNAL_LOOPBACK))
bf_set(abort_cmd_ia, &abtswqe->abort_cmd, 1);
bf_set(abort_cmd_criteria, &abtswqe->abort_cmd, T_XRI_TAG);
abtswqe->abort_cmd.rsrvd5 = 0;
abtswqe->abort_cmd.wqe_com.abort_tag = xritag;
bf_set(wqe_reqtag, &abtswqe->abort_cmd.wqe_com, abtsiocb->iotag);
bf_set(wqe_cmnd, &abtswqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
bf_set(wqe_xri_tag, &abtswqe->generic.wqe_com, 0);
bf_set(wqe_qosd, &abtswqe->abort_cmd.wqe_com, 1);
bf_set(wqe_lenloc, &abtswqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
bf_set(wqe_cmd_type, &abtswqe->abort_cmd.wqe_com, OTHER_COMMAND);
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
abtsiocb->hba_wqidx = cmdiocb->hba_wqidx;
abtsiocb->cmd_flag |= LPFC_USE_FCPWQIDX;
if (cmdiocb->cmd_flag & LPFC_IO_FCP)
abtsiocb->cmd_flag |= LPFC_IO_FCP;
if (cmdiocb->cmd_flag & LPFC_IO_NVME)
abtsiocb->cmd_flag |= LPFC_IO_NVME;
if (cmdiocb->cmd_flag & LPFC_IO_FOF)
abtsiocb->cmd_flag |= LPFC_IO_FOF;
abtsiocb->vport = vport;
abtsiocb->cmd_cmpl = cmpl;
lpfc_cmd = container_of(cmdiocb, struct lpfc_io_buf, cur_iocbq);
retval = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, abtsiocb);
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
"0359 Abort xri x%x, original iotag x%x, "
"abort cmd iotag x%x retval x%x\n",
xritag, cmdiocb->iotag, abtsiocb->iotag, retval);
if (retval) {
cmdiocb->cmd_flag &= ~LPFC_DRIVER_ABORTED;
__lpfc_sli_release_iocbq(phba, abtsiocb);
}
return retval;
}
#ifdef LPFC_MXP_STAT
/**
* lpfc_snapshot_mxp - Snapshot pbl, pvt and busy count
* @phba: pointer to lpfc hba data structure.
* @hwqid: belong to which HWQ.
*
* The purpose of this routine is to take a snapshot of pbl, pvt and busy count
* 15 seconds after a test case is running.
*
* The user should call lpfc_debugfs_multixripools_write before running a test
* case to clear stat_snapshot_taken. Then the user starts a test case. During
* test case is running, stat_snapshot_taken is incremented by 1 every time when
* this routine is called from heartbeat timer. When stat_snapshot_taken is
* equal to LPFC_MXP_SNAPSHOT_TAKEN, a snapshot is taken.
**/
void lpfc_snapshot_mxp(struct lpfc_hba *phba, u32 hwqid)
{
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_multixri_pool *multixri_pool;
struct lpfc_pvt_pool *pvt_pool;
struct lpfc_pbl_pool *pbl_pool;
u32 txcmplq_cnt;
qp = &phba->sli4_hba.hdwq[hwqid];
multixri_pool = qp->p_multixri_pool;
if (!multixri_pool)
return;
if (multixri_pool->stat_snapshot_taken == LPFC_MXP_SNAPSHOT_TAKEN) {
pvt_pool = &qp->p_multixri_pool->pvt_pool;
pbl_pool = &qp->p_multixri_pool->pbl_pool;
txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
multixri_pool->stat_pbl_count = pbl_pool->count;
multixri_pool->stat_pvt_count = pvt_pool->count;
multixri_pool->stat_busy_count = txcmplq_cnt;
}
multixri_pool->stat_snapshot_taken++;
}
#endif
/**
* lpfc_adjust_pvt_pool_count - Adjust private pool count
* @phba: pointer to lpfc hba data structure.
* @hwqid: belong to which HWQ.
*
* This routine moves some XRIs from private to public pool when private pool
* is not busy.
**/
void lpfc_adjust_pvt_pool_count(struct lpfc_hba *phba, u32 hwqid)
{
struct lpfc_multixri_pool *multixri_pool;
u32 io_req_count;
u32 prev_io_req_count;
multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
if (!multixri_pool)
return;
io_req_count = multixri_pool->io_req_count;
prev_io_req_count = multixri_pool->prev_io_req_count;
if (prev_io_req_count != io_req_count) {
/* Private pool is busy */
multixri_pool->prev_io_req_count = io_req_count;
} else {
/* Private pool is not busy.
* Move XRIs from private to public pool.
*/
lpfc_move_xri_pvt_to_pbl(phba, hwqid);
}
}
/**
* lpfc_adjust_high_watermark - Adjust high watermark
* @phba: pointer to lpfc hba data structure.
* @hwqid: belong to which HWQ.
*
* This routine sets high watermark as number of outstanding XRIs,
* but make sure the new value is between xri_limit/2 and xri_limit.
**/
void lpfc_adjust_high_watermark(struct lpfc_hba *phba, u32 hwqid)
{
u32 new_watermark;
u32 watermark_max;
u32 watermark_min;
u32 xri_limit;
u32 txcmplq_cnt;
u32 abts_io_bufs;
struct lpfc_multixri_pool *multixri_pool;
struct lpfc_sli4_hdw_queue *qp;
qp = &phba->sli4_hba.hdwq[hwqid];
multixri_pool = qp->p_multixri_pool;
if (!multixri_pool)
return;
xri_limit = multixri_pool->xri_limit;
watermark_max = xri_limit;
watermark_min = xri_limit / 2;
txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
abts_io_bufs = qp->abts_scsi_io_bufs;
abts_io_bufs += qp->abts_nvme_io_bufs;
new_watermark = txcmplq_cnt + abts_io_bufs;
new_watermark = min(watermark_max, new_watermark);
new_watermark = max(watermark_min, new_watermark);
multixri_pool->pvt_pool.high_watermark = new_watermark;
#ifdef LPFC_MXP_STAT
multixri_pool->stat_max_hwm = max(multixri_pool->stat_max_hwm,
new_watermark);
#endif
}
/**
* lpfc_move_xri_pvt_to_pbl - Move some XRIs from private to public pool
* @phba: pointer to lpfc hba data structure.
* @hwqid: belong to which HWQ.
*
* This routine is called from hearbeat timer when pvt_pool is idle.
* All free XRIs are moved from private to public pool on hwqid with 2 steps.
* The first step moves (all - low_watermark) amount of XRIs.
* The second step moves the rest of XRIs.
**/
void lpfc_move_xri_pvt_to_pbl(struct lpfc_hba *phba, u32 hwqid)
{
struct lpfc_pbl_pool *pbl_pool;
struct lpfc_pvt_pool *pvt_pool;
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_io_buf *lpfc_ncmd_next;
unsigned long iflag;
struct list_head tmp_list;
u32 tmp_count;
qp = &phba->sli4_hba.hdwq[hwqid];
pbl_pool = &qp->p_multixri_pool->pbl_pool;
pvt_pool = &qp->p_multixri_pool->pvt_pool;
tmp_count = 0;
lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag, qp, mv_to_pub_pool);
lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_from_pvt_pool);
if (pvt_pool->count > pvt_pool->low_watermark) {
/* Step 1: move (all - low_watermark) from pvt_pool
* to pbl_pool
*/
/* Move low watermark of bufs from pvt_pool to tmp_list */
INIT_LIST_HEAD(&tmp_list);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&pvt_pool->list, list) {
list_move_tail(&lpfc_ncmd->list, &tmp_list);
tmp_count++;
if (tmp_count >= pvt_pool->low_watermark)
break;
}
/* Move all bufs from pvt_pool to pbl_pool */
list_splice_init(&pvt_pool->list, &pbl_pool->list);
/* Move all bufs from tmp_list to pvt_pool */
list_splice(&tmp_list, &pvt_pool->list);
pbl_pool->count += (pvt_pool->count - tmp_count);
pvt_pool->count = tmp_count;
} else {
/* Step 2: move the rest from pvt_pool to pbl_pool */
list_splice_init(&pvt_pool->list, &pbl_pool->list);
pbl_pool->count += pvt_pool->count;
pvt_pool->count = 0;
}
spin_unlock(&pvt_pool->lock);
spin_unlock_irqrestore(&pbl_pool->lock, iflag);
}
/**
* _lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
* @phba: pointer to lpfc hba data structure
* @qp: pointer to HDW queue
* @pbl_pool: specified public free XRI pool
* @pvt_pool: specified private free XRI pool
* @count: number of XRIs to move
*
* This routine tries to move some free common bufs from the specified pbl_pool
* to the specified pvt_pool. It might move less than count XRIs if there's not
* enough in public pool.
*
* Return:
* true - if XRIs are successfully moved from the specified pbl_pool to the
* specified pvt_pool
* false - if the specified pbl_pool is empty or locked by someone else
**/
static bool
_lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
struct lpfc_pbl_pool *pbl_pool,
struct lpfc_pvt_pool *pvt_pool, u32 count)
{
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_io_buf *lpfc_ncmd_next;
unsigned long iflag;
int ret;
ret = spin_trylock_irqsave(&pbl_pool->lock, iflag);
if (ret) {
if (pbl_pool->count) {
/* Move a batch of XRIs from public to private pool */
lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_to_pvt_pool);
list_for_each_entry_safe(lpfc_ncmd,
lpfc_ncmd_next,
&pbl_pool->list,
list) {
list_move_tail(&lpfc_ncmd->list,
&pvt_pool->list);
pvt_pool->count++;
pbl_pool->count--;
count--;
if (count == 0)
break;
}
spin_unlock(&pvt_pool->lock);
spin_unlock_irqrestore(&pbl_pool->lock, iflag);
return true;
}
spin_unlock_irqrestore(&pbl_pool->lock, iflag);
}
return false;
}
/**
* lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
* @phba: pointer to lpfc hba data structure.
* @hwqid: belong to which HWQ.
* @count: number of XRIs to move
*
* This routine tries to find some free common bufs in one of public pools with
* Round Robin method. The search always starts from local hwqid, then the next
* HWQ which was found last time (rrb_next_hwqid). Once a public pool is found,
* a batch of free common bufs are moved to private pool on hwqid.
* It might move less than count XRIs if there's not enough in public pool.
**/
void lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, u32 hwqid, u32 count)
{
struct lpfc_multixri_pool *multixri_pool;
struct lpfc_multixri_pool *next_multixri_pool;
struct lpfc_pvt_pool *pvt_pool;
struct lpfc_pbl_pool *pbl_pool;
struct lpfc_sli4_hdw_queue *qp;
u32 next_hwqid;
u32 hwq_count;
int ret;
qp = &phba->sli4_hba.hdwq[hwqid];
multixri_pool = qp->p_multixri_pool;
pvt_pool = &multixri_pool->pvt_pool;
pbl_pool = &multixri_pool->pbl_pool;
/* Check if local pbl_pool is available */
ret = _lpfc_move_xri_pbl_to_pvt(phba, qp, pbl_pool, pvt_pool, count);
if (ret) {
#ifdef LPFC_MXP_STAT
multixri_pool->local_pbl_hit_count++;
#endif
return;
}
hwq_count = phba->cfg_hdw_queue;
/* Get the next hwqid which was found last time */
next_hwqid = multixri_pool->rrb_next_hwqid;
do {
/* Go to next hwq */
next_hwqid = (next_hwqid + 1) % hwq_count;
next_multixri_pool =
phba->sli4_hba.hdwq[next_hwqid].p_multixri_pool;
pbl_pool = &next_multixri_pool->pbl_pool;
/* Check if the public free xri pool is available */
ret = _lpfc_move_xri_pbl_to_pvt(
phba, qp, pbl_pool, pvt_pool, count);
/* Exit while-loop if success or all hwqid are checked */
} while (!ret && next_hwqid != multixri_pool->rrb_next_hwqid);
/* Starting point for the next time */
multixri_pool->rrb_next_hwqid = next_hwqid;
if (!ret) {
/* stats: all public pools are empty*/
multixri_pool->pbl_empty_count++;
}
#ifdef LPFC_MXP_STAT
if (ret) {
if (next_hwqid == hwqid)
multixri_pool->local_pbl_hit_count++;
else
multixri_pool->other_pbl_hit_count++;
}
#endif
}
/**
* lpfc_keep_pvt_pool_above_lowwm - Keep pvt_pool above low watermark
* @phba: pointer to lpfc hba data structure.
* @hwqid: belong to which HWQ.
*
* This routine get a batch of XRIs from pbl_pool if pvt_pool is less than
* low watermark.
**/
void lpfc_keep_pvt_pool_above_lowwm(struct lpfc_hba *phba, u32 hwqid)
{
struct lpfc_multixri_pool *multixri_pool;
struct lpfc_pvt_pool *pvt_pool;
multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
pvt_pool = &multixri_pool->pvt_pool;
if (pvt_pool->count < pvt_pool->low_watermark)
lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
}
/**
* lpfc_release_io_buf - Return one IO buf back to free pool
* @phba: pointer to lpfc hba data structure.
* @lpfc_ncmd: IO buf to be returned.
* @qp: belong to which HWQ.
*
* This routine returns one IO buf back to free pool. If this is an urgent IO,
* the IO buf is returned to expedite pool. If cfg_xri_rebalancing==1,
* the IO buf is returned to pbl_pool or pvt_pool based on watermark and
* xri_limit. If cfg_xri_rebalancing==0, the IO buf is returned to
* lpfc_io_buf_list_put.
**/
void lpfc_release_io_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_ncmd,
struct lpfc_sli4_hdw_queue *qp)
{
unsigned long iflag;
struct lpfc_pbl_pool *pbl_pool;
struct lpfc_pvt_pool *pvt_pool;
struct lpfc_epd_pool *epd_pool;
u32 txcmplq_cnt;
u32 xri_owned;
u32 xri_limit;
u32 abts_io_bufs;
/* MUST zero fields if buffer is reused by another protocol */
lpfc_ncmd->nvmeCmd = NULL;
lpfc_ncmd->cur_iocbq.cmd_cmpl = NULL;
if (phba->cfg_xpsgl && !phba->nvmet_support &&
!list_empty(&lpfc_ncmd->dma_sgl_xtra_list))
lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
if (!list_empty(&lpfc_ncmd->dma_cmd_rsp_list))
lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
if (phba->cfg_xri_rebalancing) {
if (lpfc_ncmd->expedite) {
/* Return to expedite pool */
epd_pool = &phba->epd_pool;
spin_lock_irqsave(&epd_pool->lock, iflag);
list_add_tail(&lpfc_ncmd->list, &epd_pool->list);
epd_pool->count++;
spin_unlock_irqrestore(&epd_pool->lock, iflag);
return;
}
/* Avoid invalid access if an IO sneaks in and is being rejected
* just _after_ xri pools are destroyed in lpfc_offline.
* Nothing much can be done at this point.
*/
if (!qp->p_multixri_pool)
return;
pbl_pool = &qp->p_multixri_pool->pbl_pool;
pvt_pool = &qp->p_multixri_pool->pvt_pool;
txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
abts_io_bufs = qp->abts_scsi_io_bufs;
abts_io_bufs += qp->abts_nvme_io_bufs;
xri_owned = pvt_pool->count + txcmplq_cnt + abts_io_bufs;
xri_limit = qp->p_multixri_pool->xri_limit;
#ifdef LPFC_MXP_STAT
if (xri_owned <= xri_limit)
qp->p_multixri_pool->below_limit_count++;
else
qp->p_multixri_pool->above_limit_count++;
#endif
/* XRI goes to either public or private free xri pool
* based on watermark and xri_limit
*/
if ((pvt_pool->count < pvt_pool->low_watermark) ||
(xri_owned < xri_limit &&
pvt_pool->count < pvt_pool->high_watermark)) {
lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag,
qp, free_pvt_pool);
list_add_tail(&lpfc_ncmd->list,
&pvt_pool->list);
pvt_pool->count++;
spin_unlock_irqrestore(&pvt_pool->lock, iflag);
} else {
lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag,
qp, free_pub_pool);
list_add_tail(&lpfc_ncmd->list,
&pbl_pool->list);
pbl_pool->count++;
spin_unlock_irqrestore(&pbl_pool->lock, iflag);
}
} else {
lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag,
qp, free_xri);
list_add_tail(&lpfc_ncmd->list,
&qp->lpfc_io_buf_list_put);
qp->put_io_bufs++;
spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
iflag);
}
}
/**
* lpfc_get_io_buf_from_private_pool - Get one free IO buf from private pool
* @phba: pointer to lpfc hba data structure.
* @qp: pointer to HDW queue
* @pvt_pool: pointer to private pool data structure.
* @ndlp: pointer to lpfc nodelist data structure.
*
* This routine tries to get one free IO buf from private pool.
*
* Return:
* pointer to one free IO buf - if private pool is not empty
* NULL - if private pool is empty
**/
static struct lpfc_io_buf *
lpfc_get_io_buf_from_private_pool(struct lpfc_hba *phba,
struct lpfc_sli4_hdw_queue *qp,
struct lpfc_pvt_pool *pvt_pool,
struct lpfc_nodelist *ndlp)
{
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_io_buf *lpfc_ncmd_next;
unsigned long iflag;
lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag, qp, alloc_pvt_pool);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&pvt_pool->list, list) {
if (lpfc_test_rrq_active(
phba, ndlp, lpfc_ncmd->cur_iocbq.sli4_lxritag))
continue;
list_del(&lpfc_ncmd->list);
pvt_pool->count--;
spin_unlock_irqrestore(&pvt_pool->lock, iflag);
return lpfc_ncmd;
}
spin_unlock_irqrestore(&pvt_pool->lock, iflag);
return NULL;
}
/**
* lpfc_get_io_buf_from_expedite_pool - Get one free IO buf from expedite pool
* @phba: pointer to lpfc hba data structure.
*
* This routine tries to get one free IO buf from expedite pool.
*
* Return:
* pointer to one free IO buf - if expedite pool is not empty
* NULL - if expedite pool is empty
**/
static struct lpfc_io_buf *
lpfc_get_io_buf_from_expedite_pool(struct lpfc_hba *phba)
{
struct lpfc_io_buf *lpfc_ncmd = NULL, *iter;
struct lpfc_io_buf *lpfc_ncmd_next;
unsigned long iflag;
struct lpfc_epd_pool *epd_pool;
epd_pool = &phba->epd_pool;
spin_lock_irqsave(&epd_pool->lock, iflag);
if (epd_pool->count > 0) {
list_for_each_entry_safe(iter, lpfc_ncmd_next,
&epd_pool->list, list) {
list_del(&iter->list);
epd_pool->count--;
lpfc_ncmd = iter;
break;
}
}
spin_unlock_irqrestore(&epd_pool->lock, iflag);
return lpfc_ncmd;
}
/**
* lpfc_get_io_buf_from_multixri_pools - Get one free IO bufs
* @phba: pointer to lpfc hba data structure.
* @ndlp: pointer to lpfc nodelist data structure.
* @hwqid: belong to which HWQ
* @expedite: 1 means this request is urgent.
*
* This routine will do the following actions and then return a pointer to
* one free IO buf.
*
* 1. If private free xri count is empty, move some XRIs from public to
* private pool.
* 2. Get one XRI from private free xri pool.
* 3. If we fail to get one from pvt_pool and this is an expedite request,
* get one free xri from expedite pool.
*
* Note: ndlp is only used on SCSI side for RRQ testing.
* The caller should pass NULL for ndlp on NVME side.
*
* Return:
* pointer to one free IO buf - if private pool is not empty
* NULL - if private pool is empty
**/
static struct lpfc_io_buf *
lpfc_get_io_buf_from_multixri_pools(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp,
int hwqid, int expedite)
{
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_multixri_pool *multixri_pool;
struct lpfc_pvt_pool *pvt_pool;
struct lpfc_io_buf *lpfc_ncmd;
qp = &phba->sli4_hba.hdwq[hwqid];
lpfc_ncmd = NULL;
if (!qp) {
lpfc_printf_log(phba, KERN_INFO,
LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
"5556 NULL qp for hwqid x%x\n", hwqid);
return lpfc_ncmd;
}
multixri_pool = qp->p_multixri_pool;
if (!multixri_pool) {
lpfc_printf_log(phba, KERN_INFO,
LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
"5557 NULL multixri for hwqid x%x\n", hwqid);
return lpfc_ncmd;
}
pvt_pool = &multixri_pool->pvt_pool;
if (!pvt_pool) {
lpfc_printf_log(phba, KERN_INFO,
LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
"5558 NULL pvt_pool for hwqid x%x\n", hwqid);
return lpfc_ncmd;
}
multixri_pool->io_req_count++;
/* If pvt_pool is empty, move some XRIs from public to private pool */
if (pvt_pool->count == 0)
lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
/* Get one XRI from private free xri pool */
lpfc_ncmd = lpfc_get_io_buf_from_private_pool(phba, qp, pvt_pool, ndlp);
if (lpfc_ncmd) {
lpfc_ncmd->hdwq = qp;
lpfc_ncmd->hdwq_no = hwqid;
} else if (expedite) {
/* If we fail to get one from pvt_pool and this is an expedite
* request, get one free xri from expedite pool.
*/
lpfc_ncmd = lpfc_get_io_buf_from_expedite_pool(phba);
}
return lpfc_ncmd;
}
static inline struct lpfc_io_buf *
lpfc_io_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int idx)
{
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_io_buf *lpfc_cmd, *lpfc_cmd_next;
qp = &phba->sli4_hba.hdwq[idx];
list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next,
&qp->lpfc_io_buf_list_get, list) {
if (lpfc_test_rrq_active(phba, ndlp,
lpfc_cmd->cur_iocbq.sli4_lxritag))
continue;
if (lpfc_cmd->flags & LPFC_SBUF_NOT_POSTED)
continue;
list_del_init(&lpfc_cmd->list);
qp->get_io_bufs--;
lpfc_cmd->hdwq = qp;
lpfc_cmd->hdwq_no = idx;
return lpfc_cmd;
}
return NULL;
}
/**
* lpfc_get_io_buf - Get one IO buffer from free pool
* @phba: The HBA for which this call is being executed.
* @ndlp: pointer to lpfc nodelist data structure.
* @hwqid: belong to which HWQ
* @expedite: 1 means this request is urgent.
*
* This routine gets one IO buffer from free pool. If cfg_xri_rebalancing==1,
* removes a IO buffer from multiXRI pools. If cfg_xri_rebalancing==0, removes
* a IO buffer from head of @hdwq io_buf_list and returns to caller.
*
* Note: ndlp is only used on SCSI side for RRQ testing.
* The caller should pass NULL for ndlp on NVME side.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_io_buf - Success
**/
struct lpfc_io_buf *lpfc_get_io_buf(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp,
u32 hwqid, int expedite)
{
struct lpfc_sli4_hdw_queue *qp;
unsigned long iflag;
struct lpfc_io_buf *lpfc_cmd;
qp = &phba->sli4_hba.hdwq[hwqid];
lpfc_cmd = NULL;
if (!qp) {
lpfc_printf_log(phba, KERN_WARNING,
LOG_SLI | LOG_NVME_ABTS | LOG_FCP,
"5555 NULL qp for hwqid x%x\n", hwqid);
return lpfc_cmd;
}
if (phba->cfg_xri_rebalancing)
lpfc_cmd = lpfc_get_io_buf_from_multixri_pools(
phba, ndlp, hwqid, expedite);
else {
lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_get_lock, iflag,
qp, alloc_xri_get);
if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
if (!lpfc_cmd) {
lpfc_qp_spin_lock(&qp->io_buf_list_put_lock,
qp, alloc_xri_put);
list_splice(&qp->lpfc_io_buf_list_put,
&qp->lpfc_io_buf_list_get);
qp->get_io_bufs += qp->put_io_bufs;
INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
qp->put_io_bufs = 0;
spin_unlock(&qp->io_buf_list_put_lock);
if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT ||
expedite)
lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
}
spin_unlock_irqrestore(&qp->io_buf_list_get_lock, iflag);
}
return lpfc_cmd;
}
/**
* lpfc_read_object - Retrieve object data from HBA
* @phba: The HBA for which this call is being executed.
* @rdobject: Pathname of object data we want to read.
* @datap: Pointer to where data will be copied to.
* @datasz: size of data area
*
* This routine is limited to object sizes of LPFC_BPL_SIZE (1024) or less.
* The data will be truncated if datasz is not large enough.
* Version 1 is not supported with Embedded mbox cmd, so we must use version 0.
* Returns the actual bytes read from the object.
*/
int
lpfc_read_object(struct lpfc_hba *phba, char *rdobject, uint32_t *datap,
uint32_t datasz)
{
struct lpfc_mbx_read_object *read_object;
LPFC_MBOXQ_t *mbox;
int rc, length, eof, j, byte_cnt = 0;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
struct lpfc_dmabuf *pcmd;
u32 rd_object_name[LPFC_MBX_OBJECT_NAME_LEN_DW] = {0};
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_read_object) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_READ_OBJECT,
length, LPFC_SLI4_MBX_EMBED);
read_object = &mbox->u.mqe.un.read_object;
shdr = (union lpfc_sli4_cfg_shdr *)&read_object->header.cfg_shdr;
bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_0);
bf_set(lpfc_mbx_rd_object_rlen, &read_object->u.request, datasz);
read_object->u.request.rd_object_offset = 0;
read_object->u.request.rd_object_cnt = 1;
memset((void *)read_object->u.request.rd_object_name, 0,
LPFC_OBJ_NAME_SZ);
scnprintf((char *)rd_object_name, sizeof(rd_object_name), rdobject);
for (j = 0; j < strlen(rdobject); j++)
read_object->u.request.rd_object_name[j] =
cpu_to_le32(rd_object_name[j]);
pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL);
if (pcmd)
pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
if (!pcmd || !pcmd->virt) {
kfree(pcmd);
mempool_free(mbox, phba->mbox_mem_pool);
return -ENOMEM;
}
memset((void *)pcmd->virt, 0, LPFC_BPL_SIZE);
read_object->u.request.rd_object_hbuf[0].pa_lo =
putPaddrLow(pcmd->phys);
read_object->u.request.rd_object_hbuf[0].pa_hi =
putPaddrHigh(pcmd->phys);
read_object->u.request.rd_object_hbuf[0].length = LPFC_BPL_SIZE;
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->ctx_ndlp = NULL;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status == STATUS_FAILED &&
shdr_add_status == ADD_STATUS_INVALID_OBJECT_NAME) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
"4674 No port cfg file in FW.\n");
byte_cnt = -ENOENT;
} else if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_CGN_MGMT,
"2625 READ_OBJECT mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
byte_cnt = -ENXIO;
} else {
/* Success */
length = read_object->u.response.rd_object_actual_rlen;
eof = bf_get(lpfc_mbx_rd_object_eof, &read_object->u.response);
lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_CGN_MGMT,
"2626 READ_OBJECT Success len %d:%d, EOF %d\n",
length, datasz, eof);
/* Detect the port config file exists but is empty */
if (!length && eof) {
byte_cnt = 0;
goto exit;
}
byte_cnt = length;
lpfc_sli_pcimem_bcopy(pcmd->virt, datap, byte_cnt);
}
exit:
/* This is an embedded SLI4 mailbox with an external buffer allocated.
* Free the pcmd and then cleanup with the correct routine.
*/
lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
kfree(pcmd);
lpfc_sli4_mbox_cmd_free(phba, mbox);
return byte_cnt;
}
/**
* lpfc_get_sgl_per_hdwq - Get one SGL chunk from hdwq's pool
* @phba: The HBA for which this call is being executed.
* @lpfc_buf: IO buf structure to append the SGL chunk
*
* This routine gets one SGL chunk buffer from hdwq's SGL chunk pool,
* and will allocate an SGL chunk if the pool is empty.
*
* Return codes:
* NULL - Error
* Pointer to sli4_hybrid_sgl - Success
**/
struct sli4_hybrid_sgl *
lpfc_get_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
{
struct sli4_hybrid_sgl *list_entry = NULL;
struct sli4_hybrid_sgl *tmp = NULL;
struct sli4_hybrid_sgl *allocated_sgl = NULL;
struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
struct list_head *buf_list = &hdwq->sgl_list;
unsigned long iflags;
spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
if (likely(!list_empty(buf_list))) {
/* break off 1 chunk from the sgl_list */
list_for_each_entry_safe(list_entry, tmp,
buf_list, list_node) {
list_move_tail(&list_entry->list_node,
&lpfc_buf->dma_sgl_xtra_list);
break;
}
} else {
/* allocate more */
spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
cpu_to_node(hdwq->io_wq->chann));
if (!tmp) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"8353 error kmalloc memory for HDWQ "
"%d %s\n",
lpfc_buf->hdwq_no, __func__);
return NULL;
}
tmp->dma_sgl = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool,
GFP_ATOMIC, &tmp->dma_phys_sgl);
if (!tmp->dma_sgl) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"8354 error pool_alloc memory for HDWQ "
"%d %s\n",
lpfc_buf->hdwq_no, __func__);
kfree(tmp);
return NULL;
}
spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
list_add_tail(&tmp->list_node, &lpfc_buf->dma_sgl_xtra_list);
}
allocated_sgl = list_last_entry(&lpfc_buf->dma_sgl_xtra_list,
struct sli4_hybrid_sgl,
list_node);
spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
return allocated_sgl;
}
/**
* lpfc_put_sgl_per_hdwq - Put one SGL chunk into hdwq pool
* @phba: The HBA for which this call is being executed.
* @lpfc_buf: IO buf structure with the SGL chunk
*
* This routine puts one SGL chunk buffer into hdwq's SGL chunk pool.
*
* Return codes:
* 0 - Success
* -EINVAL - Error
**/
int
lpfc_put_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
{
int rc = 0;
struct sli4_hybrid_sgl *list_entry = NULL;
struct sli4_hybrid_sgl *tmp = NULL;
struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
struct list_head *buf_list = &hdwq->sgl_list;
unsigned long iflags;
spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
if (likely(!list_empty(&lpfc_buf->dma_sgl_xtra_list))) {
list_for_each_entry_safe(list_entry, tmp,
&lpfc_buf->dma_sgl_xtra_list,
list_node) {
list_move_tail(&list_entry->list_node,
buf_list);
}
} else {
rc = -EINVAL;
}
spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
return rc;
}
/**
* lpfc_free_sgl_per_hdwq - Free all SGL chunks of hdwq pool
* @phba: phba object
* @hdwq: hdwq to cleanup sgl buff resources on
*
* This routine frees all SGL chunks of hdwq SGL chunk pool.
*
* Return codes:
* None
**/
void
lpfc_free_sgl_per_hdwq(struct lpfc_hba *phba,
struct lpfc_sli4_hdw_queue *hdwq)
{
struct list_head *buf_list = &hdwq->sgl_list;
struct sli4_hybrid_sgl *list_entry = NULL;
struct sli4_hybrid_sgl *tmp = NULL;
unsigned long iflags;
spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
/* Free sgl pool */
list_for_each_entry_safe(list_entry, tmp,
buf_list, list_node) {
list_del(&list_entry->list_node);
dma_pool_free(phba->lpfc_sg_dma_buf_pool,
list_entry->dma_sgl,
list_entry->dma_phys_sgl);
kfree(list_entry);
}
spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
}
/**
* lpfc_get_cmd_rsp_buf_per_hdwq - Get one CMD/RSP buffer from hdwq
* @phba: The HBA for which this call is being executed.
* @lpfc_buf: IO buf structure to attach the CMD/RSP buffer
*
* This routine gets one CMD/RSP buffer from hdwq's CMD/RSP pool,
* and will allocate an CMD/RSP buffer if the pool is empty.
*
* Return codes:
* NULL - Error
* Pointer to fcp_cmd_rsp_buf - Success
**/
struct fcp_cmd_rsp_buf *
lpfc_get_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
struct lpfc_io_buf *lpfc_buf)
{
struct fcp_cmd_rsp_buf *list_entry = NULL;
struct fcp_cmd_rsp_buf *tmp = NULL;
struct fcp_cmd_rsp_buf *allocated_buf = NULL;
struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
unsigned long iflags;
spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
if (likely(!list_empty(buf_list))) {
/* break off 1 chunk from the list */
list_for_each_entry_safe(list_entry, tmp,
buf_list,
list_node) {
list_move_tail(&list_entry->list_node,
&lpfc_buf->dma_cmd_rsp_list);
break;
}
} else {
/* allocate more */
spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
cpu_to_node(hdwq->io_wq->chann));
if (!tmp) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"8355 error kmalloc memory for HDWQ "
"%d %s\n",
lpfc_buf->hdwq_no, __func__);
return NULL;
}
tmp->fcp_cmnd = dma_pool_zalloc(phba->lpfc_cmd_rsp_buf_pool,
GFP_ATOMIC,
&tmp->fcp_cmd_rsp_dma_handle);
if (!tmp->fcp_cmnd) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"8356 error pool_alloc memory for HDWQ "
"%d %s\n",
lpfc_buf->hdwq_no, __func__);
kfree(tmp);
return NULL;
}
tmp->fcp_rsp = (struct fcp_rsp *)((uint8_t *)tmp->fcp_cmnd +
sizeof(struct fcp_cmnd));
spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
list_add_tail(&tmp->list_node, &lpfc_buf->dma_cmd_rsp_list);
}
allocated_buf = list_last_entry(&lpfc_buf->dma_cmd_rsp_list,
struct fcp_cmd_rsp_buf,
list_node);
spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
return allocated_buf;
}
/**
* lpfc_put_cmd_rsp_buf_per_hdwq - Put one CMD/RSP buffer into hdwq pool
* @phba: The HBA for which this call is being executed.
* @lpfc_buf: IO buf structure with the CMD/RSP buf
*
* This routine puts one CMD/RSP buffer into executing CPU's CMD/RSP pool.
*
* Return codes:
* 0 - Success
* -EINVAL - Error
**/
int
lpfc_put_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
struct lpfc_io_buf *lpfc_buf)
{
int rc = 0;
struct fcp_cmd_rsp_buf *list_entry = NULL;
struct fcp_cmd_rsp_buf *tmp = NULL;
struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
unsigned long iflags;
spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
if (likely(!list_empty(&lpfc_buf->dma_cmd_rsp_list))) {
list_for_each_entry_safe(list_entry, tmp,
&lpfc_buf->dma_cmd_rsp_list,
list_node) {
list_move_tail(&list_entry->list_node,
buf_list);
}
} else {
rc = -EINVAL;
}
spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
return rc;
}
/**
* lpfc_free_cmd_rsp_buf_per_hdwq - Free all CMD/RSP chunks of hdwq pool
* @phba: phba object
* @hdwq: hdwq to cleanup cmd rsp buff resources on
*
* This routine frees all CMD/RSP buffers of hdwq's CMD/RSP buf pool.
*
* Return codes:
* None
**/
void
lpfc_free_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
struct lpfc_sli4_hdw_queue *hdwq)
{
struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
struct fcp_cmd_rsp_buf *list_entry = NULL;
struct fcp_cmd_rsp_buf *tmp = NULL;
unsigned long iflags;
spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
/* Free cmd_rsp buf pool */
list_for_each_entry_safe(list_entry, tmp,
buf_list,
list_node) {
list_del(&list_entry->list_node);
dma_pool_free(phba->lpfc_cmd_rsp_buf_pool,
list_entry->fcp_cmnd,
list_entry->fcp_cmd_rsp_dma_handle);
kfree(list_entry);
}
spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
}
/**
* lpfc_sli_prep_wqe - Prepare WQE for the command to be posted
* @phba: phba object
* @job: job entry of the command to be posted.
*
* Fill the common fields of the wqe for each of the command.
*
* Return codes:
* None
**/
void
lpfc_sli_prep_wqe(struct lpfc_hba *phba, struct lpfc_iocbq *job)
{
u8 cmnd;
u32 *pcmd;
u32 if_type = 0;
u32 fip, abort_tag;
struct lpfc_nodelist *ndlp = NULL;
union lpfc_wqe128 *wqe = &job->wqe;
u8 command_type = ELS_COMMAND_NON_FIP;
fip = phba->hba_flag & HBA_FIP_SUPPORT;
/* The fcp commands will set command type */
if (job->cmd_flag & LPFC_IO_FCP)
command_type = FCP_COMMAND;
else if (fip && (job->cmd_flag & LPFC_FIP_ELS_ID_MASK))
command_type = ELS_COMMAND_FIP;
else
command_type = ELS_COMMAND_NON_FIP;
abort_tag = job->iotag;
cmnd = bf_get(wqe_cmnd, &wqe->els_req.wqe_com);
switch (cmnd) {
case CMD_ELS_REQUEST64_WQE:
ndlp = job->ndlp;
if_type = bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf);
if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
pcmd = (u32 *)job->cmd_dmabuf->virt;
if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
*pcmd == ELS_CMD_SCR ||
*pcmd == ELS_CMD_RDF ||
*pcmd == ELS_CMD_EDC ||
*pcmd == ELS_CMD_RSCN_XMT ||
*pcmd == ELS_CMD_FDISC ||
*pcmd == ELS_CMD_LOGO ||
*pcmd == ELS_CMD_QFPA ||
*pcmd == ELS_CMD_UVEM ||
*pcmd == ELS_CMD_PLOGI)) {
bf_set(els_req64_sp, &wqe->els_req, 1);
bf_set(els_req64_sid, &wqe->els_req,
job->vport->fc_myDID);
if ((*pcmd == ELS_CMD_FLOGI) &&
!(phba->fc_topology ==
LPFC_TOPOLOGY_LOOP))
bf_set(els_req64_sid, &wqe->els_req, 0);
bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
phba->vpi_ids[job->vport->vpi]);
} else if (pcmd) {
bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
}
}
bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
break;
case CMD_XMIT_ELS_RSP64_WQE:
ndlp = job->ndlp;
/* word4 */
wqe->xmit_els_rsp.word4 = 0;
if_type = bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf);
if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
if (job->vport->fc_flag & FC_PT2PT) {
bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
job->vport->fc_myDID);
if (job->vport->fc_myDID == Fabric_DID) {
bf_set(wqe_els_did,
&wqe->xmit_els_rsp.wqe_dest, 0);
}
}
}
bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
LPFC_WQE_LENLOC_WORD3);
bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
job->vport->fc_myDID);
bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
}
if (phba->sli_rev == LPFC_SLI_REV4) {
bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
if (bf_get(wqe_ct, &wqe->xmit_els_rsp.wqe_com))
bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
phba->vpi_ids[job->vport->vpi]);
}
command_type = OTHER_COMMAND;
break;
case CMD_GEN_REQUEST64_WQE:
/* Word 10 */
bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
command_type = OTHER_COMMAND;
break;
case CMD_XMIT_SEQUENCE64_WQE:
if (phba->link_flag & LS_LOOPBACK_MODE)
bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
wqe->xmit_sequence.rsvd3 = 0;
bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
LPFC_WQE_IOD_WRITE);
bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
LPFC_WQE_LENLOC_WORD12);
bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
command_type = OTHER_COMMAND;
break;
case CMD_XMIT_BLS_RSP64_WQE:
bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
phba->vpi_ids[phba->pport->vpi]);
bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
LPFC_WQE_LENLOC_NONE);
/* Overwrite the pre-set comnd type with OTHER_COMMAND */
command_type = OTHER_COMMAND;
break;
case CMD_FCP_ICMND64_WQE: /* task mgmt commands */
case CMD_ABORT_XRI_WQE: /* abort iotag */
case CMD_SEND_FRAME: /* mds loopback */
/* cases already formatted for sli4 wqe - no chgs necessary */
return;
default:
dump_stack();
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6207 Invalid command 0x%x\n",
cmnd);
break;
}
wqe->generic.wqe_com.abort_tag = abort_tag;
bf_set(wqe_reqtag, &wqe->generic.wqe_com, job->iotag);
bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_sli.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
********************************************************************/
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <asm/unaligned.h>
#include <linux/crc-t10dif.h>
#include <net/checksum.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_version.h"
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"
static struct lpfc_iocbq *lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *,
struct lpfc_async_xchg_ctx *,
dma_addr_t rspbuf,
uint16_t rspsize);
static struct lpfc_iocbq *lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *,
struct lpfc_async_xchg_ctx *);
static int lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *,
struct lpfc_async_xchg_ctx *,
uint32_t, uint16_t);
static int lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *,
struct lpfc_async_xchg_ctx *,
uint32_t, uint16_t);
static void lpfc_nvmet_wqfull_flush(struct lpfc_hba *, struct lpfc_queue *,
struct lpfc_async_xchg_ctx *);
static void lpfc_nvmet_fcp_rqst_defer_work(struct work_struct *);
static void lpfc_nvmet_process_rcv_fcp_req(struct lpfc_nvmet_ctxbuf *ctx_buf);
static union lpfc_wqe128 lpfc_tsend_cmd_template;
static union lpfc_wqe128 lpfc_treceive_cmd_template;
static union lpfc_wqe128 lpfc_trsp_cmd_template;
/* Setup WQE templates for NVME IOs */
void
lpfc_nvmet_cmd_template(void)
{
union lpfc_wqe128 *wqe;
/* TSEND template */
wqe = &lpfc_tsend_cmd_template;
memset(wqe, 0, sizeof(union lpfc_wqe128));
/* Word 0, 1, 2 - BDE is variable */
/* Word 3 - payload_offset_len is zero */
/* Word 4 - relative_offset is variable */
/* Word 5 - is zero */
/* Word 6 - ctxt_tag, xri_tag is variable */
/* Word 7 - wqe_ar is variable */
bf_set(wqe_cmnd, &wqe->fcp_tsend.wqe_com, CMD_FCP_TSEND64_WQE);
bf_set(wqe_pu, &wqe->fcp_tsend.wqe_com, PARM_REL_OFF);
bf_set(wqe_class, &wqe->fcp_tsend.wqe_com, CLASS3);
bf_set(wqe_ct, &wqe->fcp_tsend.wqe_com, SLI4_CT_RPI);
bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 1);
/* Word 8 - abort_tag is variable */
/* Word 9 - reqtag, rcvoxid is variable */
/* Word 10 - wqes, xc is variable */
bf_set(wqe_xchg, &wqe->fcp_tsend.wqe_com, LPFC_NVME_XCHG);
bf_set(wqe_dbde, &wqe->fcp_tsend.wqe_com, 1);
bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 0);
bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 1);
bf_set(wqe_iod, &wqe->fcp_tsend.wqe_com, LPFC_WQE_IOD_WRITE);
bf_set(wqe_lenloc, &wqe->fcp_tsend.wqe_com, LPFC_WQE_LENLOC_WORD12);
/* Word 11 - sup, irsp, irsplen is variable */
bf_set(wqe_cmd_type, &wqe->fcp_tsend.wqe_com, FCP_COMMAND_TSEND);
bf_set(wqe_cqid, &wqe->fcp_tsend.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_sup, &wqe->fcp_tsend.wqe_com, 0);
bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 0);
bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com, 0);
bf_set(wqe_pbde, &wqe->fcp_tsend.wqe_com, 0);
/* Word 12 - fcp_data_len is variable */
/* Word 13, 14, 15 - PBDE is zero */
/* TRECEIVE template */
wqe = &lpfc_treceive_cmd_template;
memset(wqe, 0, sizeof(union lpfc_wqe128));
/* Word 0, 1, 2 - BDE is variable */
/* Word 3 */
wqe->fcp_treceive.payload_offset_len = TXRDY_PAYLOAD_LEN;
/* Word 4 - relative_offset is variable */
/* Word 5 - is zero */
/* Word 6 - ctxt_tag, xri_tag is variable */
/* Word 7 */
bf_set(wqe_cmnd, &wqe->fcp_treceive.wqe_com, CMD_FCP_TRECEIVE64_WQE);
bf_set(wqe_pu, &wqe->fcp_treceive.wqe_com, PARM_REL_OFF);
bf_set(wqe_class, &wqe->fcp_treceive.wqe_com, CLASS3);
bf_set(wqe_ct, &wqe->fcp_treceive.wqe_com, SLI4_CT_RPI);
bf_set(wqe_ar, &wqe->fcp_treceive.wqe_com, 0);
/* Word 8 - abort_tag is variable */
/* Word 9 - reqtag, rcvoxid is variable */
/* Word 10 - xc is variable */
bf_set(wqe_dbde, &wqe->fcp_treceive.wqe_com, 1);
bf_set(wqe_wqes, &wqe->fcp_treceive.wqe_com, 0);
bf_set(wqe_xchg, &wqe->fcp_treceive.wqe_com, LPFC_NVME_XCHG);
bf_set(wqe_iod, &wqe->fcp_treceive.wqe_com, LPFC_WQE_IOD_READ);
bf_set(wqe_lenloc, &wqe->fcp_treceive.wqe_com, LPFC_WQE_LENLOC_WORD12);
bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 1);
/* Word 11 - pbde is variable */
bf_set(wqe_cmd_type, &wqe->fcp_treceive.wqe_com, FCP_COMMAND_TRECEIVE);
bf_set(wqe_cqid, &wqe->fcp_treceive.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_sup, &wqe->fcp_treceive.wqe_com, 0);
bf_set(wqe_irsp, &wqe->fcp_treceive.wqe_com, 0);
bf_set(wqe_irsplen, &wqe->fcp_treceive.wqe_com, 0);
bf_set(wqe_pbde, &wqe->fcp_treceive.wqe_com, 1);
/* Word 12 - fcp_data_len is variable */
/* Word 13, 14, 15 - PBDE is variable */
/* TRSP template */
wqe = &lpfc_trsp_cmd_template;
memset(wqe, 0, sizeof(union lpfc_wqe128));
/* Word 0, 1, 2 - BDE is variable */
/* Word 3 - response_len is variable */
/* Word 4, 5 - is zero */
/* Word 6 - ctxt_tag, xri_tag is variable */
/* Word 7 */
bf_set(wqe_cmnd, &wqe->fcp_trsp.wqe_com, CMD_FCP_TRSP64_WQE);
bf_set(wqe_pu, &wqe->fcp_trsp.wqe_com, PARM_UNUSED);
bf_set(wqe_class, &wqe->fcp_trsp.wqe_com, CLASS3);
bf_set(wqe_ct, &wqe->fcp_trsp.wqe_com, SLI4_CT_RPI);
bf_set(wqe_ag, &wqe->fcp_trsp.wqe_com, 1); /* wqe_ar */
/* Word 8 - abort_tag is variable */
/* Word 9 - reqtag is variable */
/* Word 10 wqes, xc is variable */
bf_set(wqe_dbde, &wqe->fcp_trsp.wqe_com, 1);
bf_set(wqe_xchg, &wqe->fcp_trsp.wqe_com, LPFC_NVME_XCHG);
bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 0);
bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, 0);
bf_set(wqe_iod, &wqe->fcp_trsp.wqe_com, LPFC_WQE_IOD_NONE);
bf_set(wqe_lenloc, &wqe->fcp_trsp.wqe_com, LPFC_WQE_LENLOC_WORD3);
/* Word 11 irsp, irsplen is variable */
bf_set(wqe_cmd_type, &wqe->fcp_trsp.wqe_com, FCP_COMMAND_TRSP);
bf_set(wqe_cqid, &wqe->fcp_trsp.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_sup, &wqe->fcp_trsp.wqe_com, 0);
bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 0);
bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com, 0);
bf_set(wqe_pbde, &wqe->fcp_trsp.wqe_com, 0);
/* Word 12, 13, 14, 15 - is zero */
}
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
static struct lpfc_async_xchg_ctx *
lpfc_nvmet_get_ctx_for_xri(struct lpfc_hba *phba, u16 xri)
{
struct lpfc_async_xchg_ctx *ctxp;
unsigned long iflag;
bool found = false;
spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
list_for_each_entry(ctxp, &phba->sli4_hba.t_active_ctx_list, list) {
if (ctxp->ctxbuf->sglq->sli4_xritag != xri)
continue;
found = true;
break;
}
spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
if (found)
return ctxp;
return NULL;
}
static struct lpfc_async_xchg_ctx *
lpfc_nvmet_get_ctx_for_oxid(struct lpfc_hba *phba, u16 oxid, u32 sid)
{
struct lpfc_async_xchg_ctx *ctxp;
unsigned long iflag;
bool found = false;
spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
list_for_each_entry(ctxp, &phba->sli4_hba.t_active_ctx_list, list) {
if (ctxp->oxid != oxid || ctxp->sid != sid)
continue;
found = true;
break;
}
spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
if (found)
return ctxp;
return NULL;
}
#endif
static void
lpfc_nvmet_defer_release(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *ctxp)
{
lockdep_assert_held(&ctxp->ctxlock);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6313 NVMET Defer ctx release oxid x%x flg x%x\n",
ctxp->oxid, ctxp->flag);
if (ctxp->flag & LPFC_NVME_CTX_RLS)
return;
ctxp->flag |= LPFC_NVME_CTX_RLS;
spin_lock(&phba->sli4_hba.t_active_list_lock);
list_del(&ctxp->list);
spin_unlock(&phba->sli4_hba.t_active_list_lock);
spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_add_tail(&ctxp->list, &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
}
/**
* __lpfc_nvme_xmt_ls_rsp_cmp - Generic completion handler for the
* transmission of an NVME LS response.
* @phba: Pointer to HBA context object.
* @cmdwqe: Pointer to driver command WQE object.
* @rspwqe: Pointer to driver response WQE object.
*
* The function is called from SLI ring event handler with no
* lock held. The function frees memory resources used for the command
* used to send the NVME LS RSP.
**/
void
__lpfc_nvme_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe)
{
struct lpfc_async_xchg_ctx *axchg = cmdwqe->context_un.axchg;
struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
struct nvmefc_ls_rsp *ls_rsp = &axchg->ls_rsp;
uint32_t status, result;
status = bf_get(lpfc_wcqe_c_status, wcqe);
result = wcqe->parameter;
if (axchg->state != LPFC_NVME_STE_LS_RSP || axchg->entry_cnt != 2) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6410 NVMEx LS cmpl state mismatch IO x%x: "
"%d %d\n",
axchg->oxid, axchg->state, axchg->entry_cnt);
}
lpfc_nvmeio_data(phba, "NVMEx LS CMPL: xri x%x stat x%x result x%x\n",
axchg->oxid, status, result);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6038 NVMEx LS rsp cmpl: %d %d oxid x%x\n",
status, result, axchg->oxid);
lpfc_nlp_put(cmdwqe->ndlp);
cmdwqe->context_un.axchg = NULL;
cmdwqe->bpl_dmabuf = NULL;
lpfc_sli_release_iocbq(phba, cmdwqe);
ls_rsp->done(ls_rsp);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6200 NVMEx LS rsp cmpl done status %d oxid x%x\n",
status, axchg->oxid);
kfree(axchg);
}
/**
* lpfc_nvmet_xmt_ls_rsp_cmp - Completion handler for LS Response
* @phba: Pointer to HBA context object.
* @cmdwqe: Pointer to driver command WQE object.
* @rspwqe: Pointer to driver response WQE object.
*
* The function is called from SLI ring event handler with no
* lock held. This function is the completion handler for NVME LS commands
* The function updates any states and statistics, then calls the
* generic completion handler to free resources.
**/
static void
lpfc_nvmet_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe)
{
struct lpfc_nvmet_tgtport *tgtp;
uint32_t status, result;
struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
if (!phba->targetport)
goto finish;
status = bf_get(lpfc_wcqe_c_status, wcqe);
result = wcqe->parameter;
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
if (tgtp) {
if (status) {
atomic_inc(&tgtp->xmt_ls_rsp_error);
if (result == IOERR_ABORT_REQUESTED)
atomic_inc(&tgtp->xmt_ls_rsp_aborted);
if (bf_get(lpfc_wcqe_c_xb, wcqe))
atomic_inc(&tgtp->xmt_ls_rsp_xb_set);
} else {
atomic_inc(&tgtp->xmt_ls_rsp_cmpl);
}
}
finish:
__lpfc_nvme_xmt_ls_rsp_cmp(phba, cmdwqe, rspwqe);
}
/**
* lpfc_nvmet_ctxbuf_post - Repost a NVMET RQ DMA buffer and clean up context
* @phba: HBA buffer is associated with
* @ctx_buf: ctx buffer context
*
* Description: Frees the given DMA buffer in the appropriate way given by
* reposting it to its associated RQ so it can be reused.
*
* Notes: Takes phba->hbalock. Can be called with or without other locks held.
*
* Returns: None
**/
void
lpfc_nvmet_ctxbuf_post(struct lpfc_hba *phba, struct lpfc_nvmet_ctxbuf *ctx_buf)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
struct lpfc_async_xchg_ctx *ctxp = ctx_buf->context;
struct lpfc_nvmet_tgtport *tgtp;
struct fc_frame_header *fc_hdr;
struct rqb_dmabuf *nvmebuf;
struct lpfc_nvmet_ctx_info *infop;
uint32_t size, oxid, sid;
int cpu;
unsigned long iflag;
if (ctxp->state == LPFC_NVME_STE_FREE) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6411 NVMET free, already free IO x%x: %d %d\n",
ctxp->oxid, ctxp->state, ctxp->entry_cnt);
}
if (ctxp->rqb_buffer) {
spin_lock_irqsave(&ctxp->ctxlock, iflag);
nvmebuf = ctxp->rqb_buffer;
/* check if freed in another path whilst acquiring lock */
if (nvmebuf) {
ctxp->rqb_buffer = NULL;
if (ctxp->flag & LPFC_NVME_CTX_REUSE_WQ) {
ctxp->flag &= ~LPFC_NVME_CTX_REUSE_WQ;
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
nvmebuf->hrq->rqbp->rqb_free_buffer(phba,
nvmebuf);
} else {
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
/* repost */
lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
}
} else {
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
}
}
ctxp->state = LPFC_NVME_STE_FREE;
spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
if (phba->sli4_hba.nvmet_io_wait_cnt) {
list_remove_head(&phba->sli4_hba.lpfc_nvmet_io_wait_list,
nvmebuf, struct rqb_dmabuf,
hbuf.list);
phba->sli4_hba.nvmet_io_wait_cnt--;
spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
iflag);
fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
size = nvmebuf->bytes_recv;
sid = sli4_sid_from_fc_hdr(fc_hdr);
ctxp = (struct lpfc_async_xchg_ctx *)ctx_buf->context;
ctxp->wqeq = NULL;
ctxp->offset = 0;
ctxp->phba = phba;
ctxp->size = size;
ctxp->oxid = oxid;
ctxp->sid = sid;
ctxp->state = LPFC_NVME_STE_RCV;
ctxp->entry_cnt = 1;
ctxp->flag = 0;
ctxp->ctxbuf = ctx_buf;
ctxp->rqb_buffer = (void *)nvmebuf;
spin_lock_init(&ctxp->ctxlock);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/* NOTE: isr time stamp is stale when context is re-assigned*/
if (ctxp->ts_isr_cmd) {
ctxp->ts_cmd_nvme = 0;
ctxp->ts_nvme_data = 0;
ctxp->ts_data_wqput = 0;
ctxp->ts_isr_data = 0;
ctxp->ts_data_nvme = 0;
ctxp->ts_nvme_status = 0;
ctxp->ts_status_wqput = 0;
ctxp->ts_isr_status = 0;
ctxp->ts_status_nvme = 0;
}
#endif
atomic_inc(&tgtp->rcv_fcp_cmd_in);
/* Indicate that a replacement buffer has been posted */
spin_lock_irqsave(&ctxp->ctxlock, iflag);
ctxp->flag |= LPFC_NVME_CTX_REUSE_WQ;
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
if (!queue_work(phba->wq, &ctx_buf->defer_work)) {
atomic_inc(&tgtp->rcv_fcp_cmd_drop);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6181 Unable to queue deferred work "
"for oxid x%x. "
"FCP Drop IO [x%x x%x x%x]\n",
ctxp->oxid,
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_out),
atomic_read(&tgtp->xmt_fcp_release));
spin_lock_irqsave(&ctxp->ctxlock, iflag);
lpfc_nvmet_defer_release(phba, ctxp);
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
}
return;
}
spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
/*
* Use the CPU context list, from the MRQ the IO was received on
* (ctxp->idx), to save context structure.
*/
spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
list_del_init(&ctxp->list);
spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
cpu = raw_smp_processor_id();
infop = lpfc_get_ctx_list(phba, cpu, ctxp->idx);
spin_lock_irqsave(&infop->nvmet_ctx_list_lock, iflag);
list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list);
infop->nvmet_ctx_list_cnt++;
spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, iflag);
#endif
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
static void
lpfc_nvmet_ktime(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *ctxp)
{
uint64_t seg1, seg2, seg3, seg4, seg5;
uint64_t seg6, seg7, seg8, seg9, seg10;
uint64_t segsum;
if (!ctxp->ts_isr_cmd || !ctxp->ts_cmd_nvme ||
!ctxp->ts_nvme_data || !ctxp->ts_data_wqput ||
!ctxp->ts_isr_data || !ctxp->ts_data_nvme ||
!ctxp->ts_nvme_status || !ctxp->ts_status_wqput ||
!ctxp->ts_isr_status || !ctxp->ts_status_nvme)
return;
if (ctxp->ts_status_nvme < ctxp->ts_isr_cmd)
return;
if (ctxp->ts_isr_cmd > ctxp->ts_cmd_nvme)
return;
if (ctxp->ts_cmd_nvme > ctxp->ts_nvme_data)
return;
if (ctxp->ts_nvme_data > ctxp->ts_data_wqput)
return;
if (ctxp->ts_data_wqput > ctxp->ts_isr_data)
return;
if (ctxp->ts_isr_data > ctxp->ts_data_nvme)
return;
if (ctxp->ts_data_nvme > ctxp->ts_nvme_status)
return;
if (ctxp->ts_nvme_status > ctxp->ts_status_wqput)
return;
if (ctxp->ts_status_wqput > ctxp->ts_isr_status)
return;
if (ctxp->ts_isr_status > ctxp->ts_status_nvme)
return;
/*
* Segment 1 - Time from FCP command received by MSI-X ISR
* to FCP command is passed to NVME Layer.
* Segment 2 - Time from FCP command payload handed
* off to NVME Layer to Driver receives a Command op
* from NVME Layer.
* Segment 3 - Time from Driver receives a Command op
* from NVME Layer to Command is put on WQ.
* Segment 4 - Time from Driver WQ put is done
* to MSI-X ISR for Command cmpl.
* Segment 5 - Time from MSI-X ISR for Command cmpl to
* Command cmpl is passed to NVME Layer.
* Segment 6 - Time from Command cmpl is passed to NVME
* Layer to Driver receives a RSP op from NVME Layer.
* Segment 7 - Time from Driver receives a RSP op from
* NVME Layer to WQ put is done on TRSP FCP Status.
* Segment 8 - Time from Driver WQ put is done on TRSP
* FCP Status to MSI-X ISR for TRSP cmpl.
* Segment 9 - Time from MSI-X ISR for TRSP cmpl to
* TRSP cmpl is passed to NVME Layer.
* Segment 10 - Time from FCP command received by
* MSI-X ISR to command is completed on wire.
* (Segments 1 thru 8) for READDATA / WRITEDATA
* (Segments 1 thru 4) for READDATA_RSP
*/
seg1 = ctxp->ts_cmd_nvme - ctxp->ts_isr_cmd;
segsum = seg1;
seg2 = ctxp->ts_nvme_data - ctxp->ts_isr_cmd;
if (segsum > seg2)
return;
seg2 -= segsum;
segsum += seg2;
seg3 = ctxp->ts_data_wqput - ctxp->ts_isr_cmd;
if (segsum > seg3)
return;
seg3 -= segsum;
segsum += seg3;
seg4 = ctxp->ts_isr_data - ctxp->ts_isr_cmd;
if (segsum > seg4)
return;
seg4 -= segsum;
segsum += seg4;
seg5 = ctxp->ts_data_nvme - ctxp->ts_isr_cmd;
if (segsum > seg5)
return;
seg5 -= segsum;
segsum += seg5;
/* For auto rsp commands seg6 thru seg10 will be 0 */
if (ctxp->ts_nvme_status > ctxp->ts_data_nvme) {
seg6 = ctxp->ts_nvme_status - ctxp->ts_isr_cmd;
if (segsum > seg6)
return;
seg6 -= segsum;
segsum += seg6;
seg7 = ctxp->ts_status_wqput - ctxp->ts_isr_cmd;
if (segsum > seg7)
return;
seg7 -= segsum;
segsum += seg7;
seg8 = ctxp->ts_isr_status - ctxp->ts_isr_cmd;
if (segsum > seg8)
return;
seg8 -= segsum;
segsum += seg8;
seg9 = ctxp->ts_status_nvme - ctxp->ts_isr_cmd;
if (segsum > seg9)
return;
seg9 -= segsum;
segsum += seg9;
if (ctxp->ts_isr_status < ctxp->ts_isr_cmd)
return;
seg10 = (ctxp->ts_isr_status -
ctxp->ts_isr_cmd);
} else {
if (ctxp->ts_isr_data < ctxp->ts_isr_cmd)
return;
seg6 = 0;
seg7 = 0;
seg8 = 0;
seg9 = 0;
seg10 = (ctxp->ts_isr_data - ctxp->ts_isr_cmd);
}
phba->ktime_seg1_total += seg1;
if (seg1 < phba->ktime_seg1_min)
phba->ktime_seg1_min = seg1;
else if (seg1 > phba->ktime_seg1_max)
phba->ktime_seg1_max = seg1;
phba->ktime_seg2_total += seg2;
if (seg2 < phba->ktime_seg2_min)
phba->ktime_seg2_min = seg2;
else if (seg2 > phba->ktime_seg2_max)
phba->ktime_seg2_max = seg2;
phba->ktime_seg3_total += seg3;
if (seg3 < phba->ktime_seg3_min)
phba->ktime_seg3_min = seg3;
else if (seg3 > phba->ktime_seg3_max)
phba->ktime_seg3_max = seg3;
phba->ktime_seg4_total += seg4;
if (seg4 < phba->ktime_seg4_min)
phba->ktime_seg4_min = seg4;
else if (seg4 > phba->ktime_seg4_max)
phba->ktime_seg4_max = seg4;
phba->ktime_seg5_total += seg5;
if (seg5 < phba->ktime_seg5_min)
phba->ktime_seg5_min = seg5;
else if (seg5 > phba->ktime_seg5_max)
phba->ktime_seg5_max = seg5;
phba->ktime_data_samples++;
if (!seg6)
goto out;
phba->ktime_seg6_total += seg6;
if (seg6 < phba->ktime_seg6_min)
phba->ktime_seg6_min = seg6;
else if (seg6 > phba->ktime_seg6_max)
phba->ktime_seg6_max = seg6;
phba->ktime_seg7_total += seg7;
if (seg7 < phba->ktime_seg7_min)
phba->ktime_seg7_min = seg7;
else if (seg7 > phba->ktime_seg7_max)
phba->ktime_seg7_max = seg7;
phba->ktime_seg8_total += seg8;
if (seg8 < phba->ktime_seg8_min)
phba->ktime_seg8_min = seg8;
else if (seg8 > phba->ktime_seg8_max)
phba->ktime_seg8_max = seg8;
phba->ktime_seg9_total += seg9;
if (seg9 < phba->ktime_seg9_min)
phba->ktime_seg9_min = seg9;
else if (seg9 > phba->ktime_seg9_max)
phba->ktime_seg9_max = seg9;
out:
phba->ktime_seg10_total += seg10;
if (seg10 < phba->ktime_seg10_min)
phba->ktime_seg10_min = seg10;
else if (seg10 > phba->ktime_seg10_max)
phba->ktime_seg10_max = seg10;
phba->ktime_status_samples++;
}
#endif
/**
* lpfc_nvmet_xmt_fcp_op_cmp - Completion handler for FCP Response
* @phba: Pointer to HBA context object.
* @cmdwqe: Pointer to driver command WQE object.
* @rspwqe: Pointer to driver response WQE object.
*
* The function is called from SLI ring event handler with no
* lock held. This function is the completion handler for NVME FCP commands
* The function frees memory resources used for the NVME commands.
**/
static void
lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe)
{
struct lpfc_nvmet_tgtport *tgtp;
struct nvmefc_tgt_fcp_req *rsp;
struct lpfc_async_xchg_ctx *ctxp;
uint32_t status, result, op, logerr;
struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
int id;
#endif
ctxp = cmdwqe->context_un.axchg;
ctxp->flag &= ~LPFC_NVME_IO_INP;
rsp = &ctxp->hdlrctx.fcp_req;
op = rsp->op;
status = bf_get(lpfc_wcqe_c_status, wcqe);
result = wcqe->parameter;
if (phba->targetport)
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
else
tgtp = NULL;
lpfc_nvmeio_data(phba, "NVMET FCP CMPL: xri x%x op x%x status x%x\n",
ctxp->oxid, op, status);
if (status) {
rsp->fcp_error = NVME_SC_DATA_XFER_ERROR;
rsp->transferred_length = 0;
if (tgtp) {
atomic_inc(&tgtp->xmt_fcp_rsp_error);
if (result == IOERR_ABORT_REQUESTED)
atomic_inc(&tgtp->xmt_fcp_rsp_aborted);
}
logerr = LOG_NVME_IOERR;
/* pick up SLI4 exhange busy condition */
if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
ctxp->flag |= LPFC_NVME_XBUSY;
logerr |= LOG_NVME_ABTS;
if (tgtp)
atomic_inc(&tgtp->xmt_fcp_rsp_xb_set);
} else {
ctxp->flag &= ~LPFC_NVME_XBUSY;
}
lpfc_printf_log(phba, KERN_INFO, logerr,
"6315 IO Error Cmpl oxid: x%x xri: x%x %x/%x "
"XBUSY:x%x\n",
ctxp->oxid, ctxp->ctxbuf->sglq->sli4_xritag,
status, result, ctxp->flag);
} else {
rsp->fcp_error = NVME_SC_SUCCESS;
if (op == NVMET_FCOP_RSP)
rsp->transferred_length = rsp->rsplen;
else
rsp->transferred_length = rsp->transfer_length;
if (tgtp)
atomic_inc(&tgtp->xmt_fcp_rsp_cmpl);
}
if ((op == NVMET_FCOP_READDATA_RSP) ||
(op == NVMET_FCOP_RSP)) {
/* Sanity check */
ctxp->state = LPFC_NVME_STE_DONE;
ctxp->entry_cnt++;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (ctxp->ts_cmd_nvme) {
if (rsp->op == NVMET_FCOP_READDATA_RSP) {
ctxp->ts_isr_data =
cmdwqe->isr_timestamp;
ctxp->ts_data_nvme =
ktime_get_ns();
ctxp->ts_nvme_status =
ctxp->ts_data_nvme;
ctxp->ts_status_wqput =
ctxp->ts_data_nvme;
ctxp->ts_isr_status =
ctxp->ts_data_nvme;
ctxp->ts_status_nvme =
ctxp->ts_data_nvme;
} else {
ctxp->ts_isr_status =
cmdwqe->isr_timestamp;
ctxp->ts_status_nvme =
ktime_get_ns();
}
}
#endif
rsp->done(rsp);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (ctxp->ts_cmd_nvme)
lpfc_nvmet_ktime(phba, ctxp);
#endif
/* lpfc_nvmet_xmt_fcp_release() will recycle the context */
} else {
ctxp->entry_cnt++;
memset_startat(cmdwqe, 0, cmd_flag);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (ctxp->ts_cmd_nvme) {
ctxp->ts_isr_data = cmdwqe->isr_timestamp;
ctxp->ts_data_nvme = ktime_get_ns();
}
#endif
rsp->done(rsp);
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
id = raw_smp_processor_id();
this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io);
if (ctxp->cpu != id)
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
"6704 CPU Check cmdcmpl: "
"cpu %d expect %d\n",
id, ctxp->cpu);
}
#endif
}
/**
* __lpfc_nvme_xmt_ls_rsp - Generic service routine to issue transmit
* an NVME LS rsp for a prior NVME LS request that was received.
* @axchg: pointer to exchange context for the NVME LS request the response
* is for.
* @ls_rsp: pointer to the transport LS RSP that is to be sent
* @xmt_ls_rsp_cmp: completion routine to call upon RSP transmit done
*
* This routine is used to format and send a WQE to transmit a NVME LS
* Response. The response is for a prior NVME LS request that was
* received and posted to the transport.
*
* Returns:
* 0 : if response successfully transmit
* non-zero : if response failed to transmit, of the form -Exxx.
**/
int
__lpfc_nvme_xmt_ls_rsp(struct lpfc_async_xchg_ctx *axchg,
struct nvmefc_ls_rsp *ls_rsp,
void (*xmt_ls_rsp_cmp)(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe))
{
struct lpfc_hba *phba = axchg->phba;
struct hbq_dmabuf *nvmebuf = (struct hbq_dmabuf *)axchg->rqb_buffer;
struct lpfc_iocbq *nvmewqeq;
struct lpfc_dmabuf dmabuf;
struct ulp_bde64 bpl;
int rc;
if (phba->pport->load_flag & FC_UNLOADING)
return -ENODEV;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6023 NVMEx LS rsp oxid x%x\n", axchg->oxid);
if (axchg->state != LPFC_NVME_STE_LS_RCV || axchg->entry_cnt != 1) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6412 NVMEx LS rsp state mismatch "
"oxid x%x: %d %d\n",
axchg->oxid, axchg->state, axchg->entry_cnt);
return -EALREADY;
}
axchg->state = LPFC_NVME_STE_LS_RSP;
axchg->entry_cnt++;
nvmewqeq = lpfc_nvmet_prep_ls_wqe(phba, axchg, ls_rsp->rspdma,
ls_rsp->rsplen);
if (nvmewqeq == NULL) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6150 NVMEx LS Drop Rsp x%x: Prep\n",
axchg->oxid);
rc = -ENOMEM;
goto out_free_buf;
}
/* Save numBdes for bpl2sgl */
nvmewqeq->num_bdes = 1;
nvmewqeq->hba_wqidx = 0;
nvmewqeq->bpl_dmabuf = &dmabuf;
dmabuf.virt = &bpl;
bpl.addrLow = nvmewqeq->wqe.xmit_sequence.bde.addrLow;
bpl.addrHigh = nvmewqeq->wqe.xmit_sequence.bde.addrHigh;
bpl.tus.f.bdeSize = ls_rsp->rsplen;
bpl.tus.f.bdeFlags = 0;
bpl.tus.w = le32_to_cpu(bpl.tus.w);
/*
* Note: although we're using stack space for the dmabuf, the
* call to lpfc_sli4_issue_wqe is synchronous, so it will not
* be referenced after it returns back to this routine.
*/
nvmewqeq->cmd_cmpl = xmt_ls_rsp_cmp;
nvmewqeq->context_un.axchg = axchg;
lpfc_nvmeio_data(phba, "NVMEx LS RSP: xri x%x wqidx x%x len x%x\n",
axchg->oxid, nvmewqeq->hba_wqidx, ls_rsp->rsplen);
rc = lpfc_sli4_issue_wqe(phba, axchg->hdwq, nvmewqeq);
/* clear to be sure there's no reference */
nvmewqeq->bpl_dmabuf = NULL;
if (rc == WQE_SUCCESS) {
/*
* Okay to repost buffer here, but wait till cmpl
* before freeing ctxp and iocbq.
*/
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6151 NVMEx LS RSP x%x: failed to transmit %d\n",
axchg->oxid, rc);
rc = -ENXIO;
lpfc_nlp_put(nvmewqeq->ndlp);
out_free_buf:
/* Give back resources */
lpfc_in_buf_free(phba, &nvmebuf->dbuf);
/*
* As transport doesn't track completions of responses, if the rsp
* fails to send, the transport will effectively ignore the rsp
* and consider the LS done. However, the driver has an active
* exchange open for the LS - so be sure to abort the exchange
* if the response isn't sent.
*/
lpfc_nvme_unsol_ls_issue_abort(phba, axchg, axchg->sid, axchg->oxid);
return rc;
}
/**
* lpfc_nvmet_xmt_ls_rsp - Transmit NVME LS response
* @tgtport: pointer to target port that NVME LS is to be transmit from.
* @ls_rsp: pointer to the transport LS RSP that is to be sent
*
* Driver registers this routine to transmit responses for received NVME
* LS requests.
*
* This routine is used to format and send a WQE to transmit a NVME LS
* Response. The ls_rsp is used to reverse-map the LS to the original
* NVME LS request sequence, which provides addressing information for
* the remote port the LS to be sent to, as well as the exchange id
* that is the LS is bound to.
*
* Returns:
* 0 : if response successfully transmit
* non-zero : if response failed to transmit, of the form -Exxx.
**/
static int
lpfc_nvmet_xmt_ls_rsp(struct nvmet_fc_target_port *tgtport,
struct nvmefc_ls_rsp *ls_rsp)
{
struct lpfc_async_xchg_ctx *axchg =
container_of(ls_rsp, struct lpfc_async_xchg_ctx, ls_rsp);
struct lpfc_nvmet_tgtport *nvmep = tgtport->private;
int rc;
if (axchg->phba->pport->load_flag & FC_UNLOADING)
return -ENODEV;
rc = __lpfc_nvme_xmt_ls_rsp(axchg, ls_rsp, lpfc_nvmet_xmt_ls_rsp_cmp);
if (rc) {
atomic_inc(&nvmep->xmt_ls_drop);
/*
* unless the failure is due to having already sent
* the response, an abort will be generated for the
* exchange if the rsp can't be sent.
*/
if (rc != -EALREADY)
atomic_inc(&nvmep->xmt_ls_abort);
return rc;
}
atomic_inc(&nvmep->xmt_ls_rsp);
return 0;
}
static int
lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
struct nvmefc_tgt_fcp_req *rsp)
{
struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
struct lpfc_async_xchg_ctx *ctxp =
container_of(rsp, struct lpfc_async_xchg_ctx, hdlrctx.fcp_req);
struct lpfc_hba *phba = ctxp->phba;
struct lpfc_queue *wq;
struct lpfc_iocbq *nvmewqeq;
struct lpfc_sli_ring *pring;
unsigned long iflags;
int rc;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
int id;
#endif
if (phba->pport->load_flag & FC_UNLOADING) {
rc = -ENODEV;
goto aerr;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (ctxp->ts_cmd_nvme) {
if (rsp->op == NVMET_FCOP_RSP)
ctxp->ts_nvme_status = ktime_get_ns();
else
ctxp->ts_nvme_data = ktime_get_ns();
}
/* Setup the hdw queue if not already set */
if (!ctxp->hdwq)
ctxp->hdwq = &phba->sli4_hba.hdwq[rsp->hwqid];
if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
id = raw_smp_processor_id();
this_cpu_inc(phba->sli4_hba.c_stat->xmt_io);
if (rsp->hwqid != id)
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
"6705 CPU Check OP: "
"cpu %d expect %d\n",
id, rsp->hwqid);
ctxp->cpu = id; /* Setup cpu for cmpl check */
}
#endif
/* Sanity check */
if ((ctxp->flag & LPFC_NVME_ABTS_RCV) ||
(ctxp->state == LPFC_NVME_STE_ABORT)) {
atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6102 IO oxid x%x aborted\n",
ctxp->oxid);
rc = -ENXIO;
goto aerr;
}
nvmewqeq = lpfc_nvmet_prep_fcp_wqe(phba, ctxp);
if (nvmewqeq == NULL) {
atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6152 FCP Drop IO x%x: Prep\n",
ctxp->oxid);
rc = -ENXIO;
goto aerr;
}
nvmewqeq->cmd_cmpl = lpfc_nvmet_xmt_fcp_op_cmp;
nvmewqeq->context_un.axchg = ctxp;
nvmewqeq->cmd_flag |= LPFC_IO_NVMET;
ctxp->wqeq->hba_wqidx = rsp->hwqid;
lpfc_nvmeio_data(phba, "NVMET FCP CMND: xri x%x op x%x len x%x\n",
ctxp->oxid, rsp->op, rsp->rsplen);
ctxp->flag |= LPFC_NVME_IO_INP;
rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, nvmewqeq);
if (rc == WQE_SUCCESS) {
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (!ctxp->ts_cmd_nvme)
return 0;
if (rsp->op == NVMET_FCOP_RSP)
ctxp->ts_status_wqput = ktime_get_ns();
else
ctxp->ts_data_wqput = ktime_get_ns();
#endif
return 0;
}
if (rc == -EBUSY) {
/*
* WQ was full, so queue nvmewqeq to be sent after
* WQE release CQE
*/
ctxp->flag |= LPFC_NVME_DEFER_WQFULL;
wq = ctxp->hdwq->io_wq;
pring = wq->pring;
spin_lock_irqsave(&pring->ring_lock, iflags);
list_add_tail(&nvmewqeq->list, &wq->wqfull_list);
wq->q_flag |= HBA_NVMET_WQFULL;
spin_unlock_irqrestore(&pring->ring_lock, iflags);
atomic_inc(&lpfc_nvmep->defer_wqfull);
return 0;
}
/* Give back resources */
atomic_inc(&lpfc_nvmep->xmt_fcp_drop);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6153 FCP Drop IO x%x: Issue: %d\n",
ctxp->oxid, rc);
ctxp->wqeq->hba_wqidx = 0;
nvmewqeq->context_un.axchg = NULL;
nvmewqeq->bpl_dmabuf = NULL;
rc = -EBUSY;
aerr:
return rc;
}
static void
lpfc_nvmet_targetport_delete(struct nvmet_fc_target_port *targetport)
{
struct lpfc_nvmet_tgtport *tport = targetport->private;
/* release any threads waiting for the unreg to complete */
if (tport->phba->targetport)
complete(tport->tport_unreg_cmp);
}
static void
lpfc_nvmet_xmt_fcp_abort(struct nvmet_fc_target_port *tgtport,
struct nvmefc_tgt_fcp_req *req)
{
struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
struct lpfc_async_xchg_ctx *ctxp =
container_of(req, struct lpfc_async_xchg_ctx, hdlrctx.fcp_req);
struct lpfc_hba *phba = ctxp->phba;
struct lpfc_queue *wq;
unsigned long flags;
if (phba->pport->load_flag & FC_UNLOADING)
return;
if (!ctxp->hdwq)
ctxp->hdwq = &phba->sli4_hba.hdwq[0];
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6103 NVMET Abort op: oxid x%x flg x%x ste %d\n",
ctxp->oxid, ctxp->flag, ctxp->state);
lpfc_nvmeio_data(phba, "NVMET FCP ABRT: xri x%x flg x%x ste x%x\n",
ctxp->oxid, ctxp->flag, ctxp->state);
atomic_inc(&lpfc_nvmep->xmt_fcp_abort);
spin_lock_irqsave(&ctxp->ctxlock, flags);
/* Since iaab/iaar are NOT set, we need to check
* if the firmware is in process of aborting IO
*/
if (ctxp->flag & (LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP)) {
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
return;
}
ctxp->flag |= LPFC_NVME_ABORT_OP;
if (ctxp->flag & LPFC_NVME_DEFER_WQFULL) {
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
ctxp->oxid);
wq = ctxp->hdwq->io_wq;
lpfc_nvmet_wqfull_flush(phba, wq, ctxp);
return;
}
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
/* A state of LPFC_NVME_STE_RCV means we have just received
* the NVME command and have not started processing it.
* (by issuing any IO WQEs on this exchange yet)
*/
if (ctxp->state == LPFC_NVME_STE_RCV)
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
ctxp->oxid);
else
lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid,
ctxp->oxid);
}
static void
lpfc_nvmet_xmt_fcp_release(struct nvmet_fc_target_port *tgtport,
struct nvmefc_tgt_fcp_req *rsp)
{
struct lpfc_nvmet_tgtport *lpfc_nvmep = tgtport->private;
struct lpfc_async_xchg_ctx *ctxp =
container_of(rsp, struct lpfc_async_xchg_ctx, hdlrctx.fcp_req);
struct lpfc_hba *phba = ctxp->phba;
unsigned long flags;
bool aborting = false;
spin_lock_irqsave(&ctxp->ctxlock, flags);
if (ctxp->flag & LPFC_NVME_XBUSY)
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
"6027 NVMET release with XBUSY flag x%x"
" oxid x%x\n",
ctxp->flag, ctxp->oxid);
else if (ctxp->state != LPFC_NVME_STE_DONE &&
ctxp->state != LPFC_NVME_STE_ABORT)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6413 NVMET release bad state %d %d oxid x%x\n",
ctxp->state, ctxp->entry_cnt, ctxp->oxid);
if ((ctxp->flag & LPFC_NVME_ABORT_OP) ||
(ctxp->flag & LPFC_NVME_XBUSY)) {
aborting = true;
/* let the abort path do the real release */
lpfc_nvmet_defer_release(phba, ctxp);
}
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
lpfc_nvmeio_data(phba, "NVMET FCP FREE: xri x%x ste %d abt %d\n", ctxp->oxid,
ctxp->state, aborting);
atomic_inc(&lpfc_nvmep->xmt_fcp_release);
ctxp->flag &= ~LPFC_NVME_TNOTIFY;
if (aborting)
return;
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
}
static void
lpfc_nvmet_defer_rcv(struct nvmet_fc_target_port *tgtport,
struct nvmefc_tgt_fcp_req *rsp)
{
struct lpfc_nvmet_tgtport *tgtp;
struct lpfc_async_xchg_ctx *ctxp =
container_of(rsp, struct lpfc_async_xchg_ctx, hdlrctx.fcp_req);
struct rqb_dmabuf *nvmebuf = ctxp->rqb_buffer;
struct lpfc_hba *phba = ctxp->phba;
unsigned long iflag;
lpfc_nvmeio_data(phba, "NVMET DEFERRCV: xri x%x sz %d CPU %02x\n",
ctxp->oxid, ctxp->size, raw_smp_processor_id());
if (!nvmebuf) {
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
"6425 Defer rcv: no buffer oxid x%x: "
"flg %x ste %x\n",
ctxp->oxid, ctxp->flag, ctxp->state);
return;
}
tgtp = phba->targetport->private;
if (tgtp)
atomic_inc(&tgtp->rcv_fcp_cmd_defer);
/* Free the nvmebuf since a new buffer already replaced it */
nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
spin_lock_irqsave(&ctxp->ctxlock, iflag);
ctxp->rqb_buffer = NULL;
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
}
/**
* lpfc_nvmet_ls_req_cmp - completion handler for a nvme ls request
* @phba: Pointer to HBA context object
* @cmdwqe: Pointer to driver command WQE object.
* @rspwqe: Pointer to driver response WQE object.
*
* This function is the completion handler for NVME LS requests.
* The function updates any states and statistics, then calls the
* generic completion handler to finish completion of the request.
**/
static void
lpfc_nvmet_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe)
{
struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
__lpfc_nvme_ls_req_cmp(phba, cmdwqe->vport, cmdwqe, wcqe);
}
/**
* lpfc_nvmet_ls_req - Issue an Link Service request
* @targetport: pointer to target instance registered with nvmet transport.
* @hosthandle: hosthandle set by the driver in a prior ls_rqst_rcv.
* Driver sets this value to the ndlp pointer.
* @pnvme_lsreq: the transport nvme_ls_req structure for the LS
*
* Driver registers this routine to handle any link service request
* from the nvme_fc transport to a remote nvme-aware port.
*
* Return value :
* 0 - Success
* non-zero: various error codes, in form of -Exxx
**/
static int
lpfc_nvmet_ls_req(struct nvmet_fc_target_port *targetport,
void *hosthandle,
struct nvmefc_ls_req *pnvme_lsreq)
{
struct lpfc_nvmet_tgtport *lpfc_nvmet = targetport->private;
struct lpfc_hba *phba;
struct lpfc_nodelist *ndlp;
int ret;
u32 hstate;
if (!lpfc_nvmet)
return -EINVAL;
phba = lpfc_nvmet->phba;
if (phba->pport->load_flag & FC_UNLOADING)
return -EINVAL;
hstate = atomic_read(&lpfc_nvmet->state);
if (hstate == LPFC_NVMET_INV_HOST_ACTIVE)
return -EACCES;
ndlp = (struct lpfc_nodelist *)hosthandle;
ret = __lpfc_nvme_ls_req(phba->pport, ndlp, pnvme_lsreq,
lpfc_nvmet_ls_req_cmp);
return ret;
}
/**
* lpfc_nvmet_ls_abort - Abort a prior NVME LS request
* @targetport: Transport targetport, that LS was issued from.
* @hosthandle: hosthandle set by the driver in a prior ls_rqst_rcv.
* Driver sets this value to the ndlp pointer.
* @pnvme_lsreq: the transport nvme_ls_req structure for LS to be aborted
*
* Driver registers this routine to abort an NVME LS request that is
* in progress (from the transports perspective).
**/
static void
lpfc_nvmet_ls_abort(struct nvmet_fc_target_port *targetport,
void *hosthandle,
struct nvmefc_ls_req *pnvme_lsreq)
{
struct lpfc_nvmet_tgtport *lpfc_nvmet = targetport->private;
struct lpfc_hba *phba;
struct lpfc_nodelist *ndlp;
int ret;
phba = lpfc_nvmet->phba;
if (phba->pport->load_flag & FC_UNLOADING)
return;
ndlp = (struct lpfc_nodelist *)hosthandle;
ret = __lpfc_nvme_ls_abort(phba->pport, ndlp, pnvme_lsreq);
if (!ret)
atomic_inc(&lpfc_nvmet->xmt_ls_abort);
}
static void
lpfc_nvmet_host_release(void *hosthandle)
{
struct lpfc_nodelist *ndlp = hosthandle;
struct lpfc_hba *phba = ndlp->phba;
struct lpfc_nvmet_tgtport *tgtp;
if (!phba->targetport || !phba->targetport->private)
return;
lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
"6202 NVMET XPT releasing hosthandle x%px "
"DID x%x xflags x%x refcnt %d\n",
hosthandle, ndlp->nlp_DID, ndlp->fc4_xpt_flags,
kref_read(&ndlp->kref));
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
spin_lock_irq(&ndlp->lock);
ndlp->fc4_xpt_flags &= ~NLP_XPT_HAS_HH;
spin_unlock_irq(&ndlp->lock);
lpfc_nlp_put(ndlp);
atomic_set(&tgtp->state, 0);
}
static void
lpfc_nvmet_discovery_event(struct nvmet_fc_target_port *tgtport)
{
struct lpfc_nvmet_tgtport *tgtp;
struct lpfc_hba *phba;
uint32_t rc;
tgtp = tgtport->private;
phba = tgtp->phba;
rc = lpfc_issue_els_rscn(phba->pport, 0);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6420 NVMET subsystem change: Notification %s\n",
(rc) ? "Failed" : "Sent");
}
static struct nvmet_fc_target_template lpfc_tgttemplate = {
.targetport_delete = lpfc_nvmet_targetport_delete,
.xmt_ls_rsp = lpfc_nvmet_xmt_ls_rsp,
.fcp_op = lpfc_nvmet_xmt_fcp_op,
.fcp_abort = lpfc_nvmet_xmt_fcp_abort,
.fcp_req_release = lpfc_nvmet_xmt_fcp_release,
.defer_rcv = lpfc_nvmet_defer_rcv,
.discovery_event = lpfc_nvmet_discovery_event,
.ls_req = lpfc_nvmet_ls_req,
.ls_abort = lpfc_nvmet_ls_abort,
.host_release = lpfc_nvmet_host_release,
.max_hw_queues = 1,
.max_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
.max_dif_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
.dma_boundary = 0xFFFFFFFF,
/* optional features */
.target_features = 0,
/* sizes of additional private data for data structures */
.target_priv_sz = sizeof(struct lpfc_nvmet_tgtport),
.lsrqst_priv_sz = 0,
};
static void
__lpfc_nvmet_clean_io_for_cpu(struct lpfc_hba *phba,
struct lpfc_nvmet_ctx_info *infop)
{
struct lpfc_nvmet_ctxbuf *ctx_buf, *next_ctx_buf;
unsigned long flags;
spin_lock_irqsave(&infop->nvmet_ctx_list_lock, flags);
list_for_each_entry_safe(ctx_buf, next_ctx_buf,
&infop->nvmet_ctx_list, list) {
spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_del_init(&ctx_buf->list);
spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
spin_lock(&phba->hbalock);
__lpfc_clear_active_sglq(phba, ctx_buf->sglq->sli4_lxritag);
spin_unlock(&phba->hbalock);
ctx_buf->sglq->state = SGL_FREED;
ctx_buf->sglq->ndlp = NULL;
spin_lock(&phba->sli4_hba.sgl_list_lock);
list_add_tail(&ctx_buf->sglq->list,
&phba->sli4_hba.lpfc_nvmet_sgl_list);
spin_unlock(&phba->sli4_hba.sgl_list_lock);
lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
kfree(ctx_buf->context);
}
spin_unlock_irqrestore(&infop->nvmet_ctx_list_lock, flags);
}
static void
lpfc_nvmet_cleanup_io_context(struct lpfc_hba *phba)
{
struct lpfc_nvmet_ctx_info *infop;
int i, j;
/* The first context list, MRQ 0 CPU 0 */
infop = phba->sli4_hba.nvmet_ctx_info;
if (!infop)
return;
/* Cycle the entire CPU context list for every MRQ */
for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
for_each_present_cpu(j) {
infop = lpfc_get_ctx_list(phba, j, i);
__lpfc_nvmet_clean_io_for_cpu(phba, infop);
}
}
kfree(phba->sli4_hba.nvmet_ctx_info);
phba->sli4_hba.nvmet_ctx_info = NULL;
}
static int
lpfc_nvmet_setup_io_context(struct lpfc_hba *phba)
{
struct lpfc_nvmet_ctxbuf *ctx_buf;
struct lpfc_iocbq *nvmewqe;
union lpfc_wqe128 *wqe;
struct lpfc_nvmet_ctx_info *last_infop;
struct lpfc_nvmet_ctx_info *infop;
int i, j, idx, cpu;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
"6403 Allocate NVMET resources for %d XRIs\n",
phba->sli4_hba.nvmet_xri_cnt);
phba->sli4_hba.nvmet_ctx_info = kcalloc(
phba->sli4_hba.num_possible_cpu * phba->cfg_nvmet_mrq,
sizeof(struct lpfc_nvmet_ctx_info), GFP_KERNEL);
if (!phba->sli4_hba.nvmet_ctx_info) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6419 Failed allocate memory for "
"nvmet context lists\n");
return -ENOMEM;
}
/*
* Assuming X CPUs in the system, and Y MRQs, allocate some
* lpfc_nvmet_ctx_info structures as follows:
*
* cpu0/mrq0 cpu1/mrq0 ... cpuX/mrq0
* cpu0/mrq1 cpu1/mrq1 ... cpuX/mrq1
* ...
* cpuX/mrqY cpuX/mrqY ... cpuX/mrqY
*
* Each line represents a MRQ "silo" containing an entry for
* every CPU.
*
* MRQ X is initially assumed to be associated with CPU X, thus
* contexts are initially distributed across all MRQs using
* the MRQ index (N) as follows cpuN/mrqN. When contexts are
* freed, the are freed to the MRQ silo based on the CPU number
* of the IO completion. Thus a context that was allocated for MRQ A
* whose IO completed on CPU B will be freed to cpuB/mrqA.
*/
for_each_possible_cpu(i) {
for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
infop = lpfc_get_ctx_list(phba, i, j);
INIT_LIST_HEAD(&infop->nvmet_ctx_list);
spin_lock_init(&infop->nvmet_ctx_list_lock);
infop->nvmet_ctx_list_cnt = 0;
}
}
/*
* Setup the next CPU context info ptr for each MRQ.
* MRQ 0 will cycle thru CPUs 0 - X separately from
* MRQ 1 cycling thru CPUs 0 - X, and so on.
*/
for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
last_infop = lpfc_get_ctx_list(phba,
cpumask_first(cpu_present_mask),
j);
for (i = phba->sli4_hba.num_possible_cpu - 1; i >= 0; i--) {
infop = lpfc_get_ctx_list(phba, i, j);
infop->nvmet_ctx_next_cpu = last_infop;
last_infop = infop;
}
}
/* For all nvmet xris, allocate resources needed to process a
* received command on a per xri basis.
*/
idx = 0;
cpu = cpumask_first(cpu_present_mask);
for (i = 0; i < phba->sli4_hba.nvmet_xri_cnt; i++) {
ctx_buf = kzalloc(sizeof(*ctx_buf), GFP_KERNEL);
if (!ctx_buf) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6404 Ran out of memory for NVMET\n");
return -ENOMEM;
}
ctx_buf->context = kzalloc(sizeof(*ctx_buf->context),
GFP_KERNEL);
if (!ctx_buf->context) {
kfree(ctx_buf);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6405 Ran out of NVMET "
"context memory\n");
return -ENOMEM;
}
ctx_buf->context->ctxbuf = ctx_buf;
ctx_buf->context->state = LPFC_NVME_STE_FREE;
ctx_buf->iocbq = lpfc_sli_get_iocbq(phba);
if (!ctx_buf->iocbq) {
kfree(ctx_buf->context);
kfree(ctx_buf);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6406 Ran out of NVMET iocb/WQEs\n");
return -ENOMEM;
}
ctx_buf->iocbq->cmd_flag = LPFC_IO_NVMET;
nvmewqe = ctx_buf->iocbq;
wqe = &nvmewqe->wqe;
/* Initialize WQE */
memset(wqe, 0, sizeof(union lpfc_wqe));
ctx_buf->iocbq->cmd_dmabuf = NULL;
spin_lock(&phba->sli4_hba.sgl_list_lock);
ctx_buf->sglq = __lpfc_sli_get_nvmet_sglq(phba, ctx_buf->iocbq);
spin_unlock(&phba->sli4_hba.sgl_list_lock);
if (!ctx_buf->sglq) {
lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
kfree(ctx_buf->context);
kfree(ctx_buf);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6407 Ran out of NVMET XRIs\n");
return -ENOMEM;
}
INIT_WORK(&ctx_buf->defer_work, lpfc_nvmet_fcp_rqst_defer_work);
/*
* Add ctx to MRQidx context list. Our initial assumption
* is MRQidx will be associated with CPUidx. This association
* can change on the fly.
*/
infop = lpfc_get_ctx_list(phba, cpu, idx);
spin_lock(&infop->nvmet_ctx_list_lock);
list_add_tail(&ctx_buf->list, &infop->nvmet_ctx_list);
infop->nvmet_ctx_list_cnt++;
spin_unlock(&infop->nvmet_ctx_list_lock);
/* Spread ctx structures evenly across all MRQs */
idx++;
if (idx >= phba->cfg_nvmet_mrq) {
idx = 0;
cpu = cpumask_first(cpu_present_mask);
continue;
}
cpu = lpfc_next_present_cpu(cpu);
}
for_each_present_cpu(i) {
for (j = 0; j < phba->cfg_nvmet_mrq; j++) {
infop = lpfc_get_ctx_list(phba, i, j);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
"6408 TOTAL NVMET ctx for CPU %d "
"MRQ %d: cnt %d nextcpu x%px\n",
i, j, infop->nvmet_ctx_list_cnt,
infop->nvmet_ctx_next_cpu);
}
}
return 0;
}
int
lpfc_nvmet_create_targetport(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
struct lpfc_nvmet_tgtport *tgtp;
struct nvmet_fc_port_info pinfo;
int error;
if (phba->targetport)
return 0;
error = lpfc_nvmet_setup_io_context(phba);
if (error)
return error;
memset(&pinfo, 0, sizeof(struct nvmet_fc_port_info));
pinfo.node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
pinfo.port_name = wwn_to_u64(vport->fc_portname.u.wwn);
pinfo.port_id = vport->fc_myDID;
/* We need to tell the transport layer + 1 because it takes page
* alignment into account. When space for the SGL is allocated we
* allocate + 3, one for cmd, one for rsp and one for this alignment
*/
lpfc_tgttemplate.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1;
lpfc_tgttemplate.max_hw_queues = phba->cfg_hdw_queue;
lpfc_tgttemplate.target_features = NVMET_FCTGTFEAT_READDATA_RSP;
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
error = nvmet_fc_register_targetport(&pinfo, &lpfc_tgttemplate,
&phba->pcidev->dev,
&phba->targetport);
#else
error = -ENOENT;
#endif
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6025 Cannot register NVME targetport x%x: "
"portnm %llx nodenm %llx segs %d qs %d\n",
error,
pinfo.port_name, pinfo.node_name,
lpfc_tgttemplate.max_sgl_segments,
lpfc_tgttemplate.max_hw_queues);
phba->targetport = NULL;
phba->nvmet_support = 0;
lpfc_nvmet_cleanup_io_context(phba);
} else {
tgtp = (struct lpfc_nvmet_tgtport *)
phba->targetport->private;
tgtp->phba = phba;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6026 Registered NVME "
"targetport: x%px, private x%px "
"portnm %llx nodenm %llx segs %d qs %d\n",
phba->targetport, tgtp,
pinfo.port_name, pinfo.node_name,
lpfc_tgttemplate.max_sgl_segments,
lpfc_tgttemplate.max_hw_queues);
atomic_set(&tgtp->rcv_ls_req_in, 0);
atomic_set(&tgtp->rcv_ls_req_out, 0);
atomic_set(&tgtp->rcv_ls_req_drop, 0);
atomic_set(&tgtp->xmt_ls_abort, 0);
atomic_set(&tgtp->xmt_ls_abort_cmpl, 0);
atomic_set(&tgtp->xmt_ls_rsp, 0);
atomic_set(&tgtp->xmt_ls_drop, 0);
atomic_set(&tgtp->xmt_ls_rsp_error, 0);
atomic_set(&tgtp->xmt_ls_rsp_xb_set, 0);
atomic_set(&tgtp->xmt_ls_rsp_aborted, 0);
atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
atomic_set(&tgtp->xmt_fcp_drop, 0);
atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
atomic_set(&tgtp->xmt_fcp_read, 0);
atomic_set(&tgtp->xmt_fcp_write, 0);
atomic_set(&tgtp->xmt_fcp_rsp, 0);
atomic_set(&tgtp->xmt_fcp_release, 0);
atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
atomic_set(&tgtp->xmt_fcp_rsp_xb_set, 0);
atomic_set(&tgtp->xmt_fcp_rsp_aborted, 0);
atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
atomic_set(&tgtp->xmt_fcp_xri_abort_cqe, 0);
atomic_set(&tgtp->xmt_fcp_abort, 0);
atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
atomic_set(&tgtp->xmt_abort_unsol, 0);
atomic_set(&tgtp->xmt_abort_sol, 0);
atomic_set(&tgtp->xmt_abort_rsp, 0);
atomic_set(&tgtp->xmt_abort_rsp_error, 0);
atomic_set(&tgtp->defer_ctx, 0);
atomic_set(&tgtp->defer_fod, 0);
atomic_set(&tgtp->defer_wqfull, 0);
}
return error;
}
int
lpfc_nvmet_update_targetport(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
if (!phba->targetport)
return 0;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
"6007 Update NVMET port x%px did x%x\n",
phba->targetport, vport->fc_myDID);
phba->targetport->port_id = vport->fc_myDID;
return 0;
}
/**
* lpfc_sli4_nvmet_xri_aborted - Fast-path process of nvmet xri abort
* @phba: pointer to lpfc hba data structure.
* @axri: pointer to the nvmet xri abort wcqe structure.
*
* This routine is invoked by the worker thread to process a SLI4 fast-path
* NVMET aborted xri.
**/
void
lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
struct sli4_wcqe_xri_aborted *axri)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
struct lpfc_async_xchg_ctx *ctxp, *next_ctxp;
struct lpfc_nvmet_tgtport *tgtp;
struct nvmefc_tgt_fcp_req *req = NULL;
struct lpfc_nodelist *ndlp;
unsigned long iflag = 0;
int rrq_empty = 0;
bool released = false;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6317 XB aborted xri x%x rxid x%x\n", xri, rxid);
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
return;
if (phba->targetport) {
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
atomic_inc(&tgtp->xmt_fcp_xri_abort_cqe);
}
spin_lock_irqsave(&phba->sli4_hba.abts_nvmet_buf_list_lock, iflag);
list_for_each_entry_safe(ctxp, next_ctxp,
&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
list) {
if (ctxp->ctxbuf->sglq->sli4_xritag != xri)
continue;
spin_unlock_irqrestore(&phba->sli4_hba.abts_nvmet_buf_list_lock,
iflag);
spin_lock_irqsave(&ctxp->ctxlock, iflag);
/* Check if we already received a free context call
* and we have completed processing an abort situation.
*/
if (ctxp->flag & LPFC_NVME_CTX_RLS &&
!(ctxp->flag & LPFC_NVME_ABORT_OP)) {
spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_del_init(&ctxp->list);
spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
released = true;
}
ctxp->flag &= ~LPFC_NVME_XBUSY;
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
rrq_empty = list_empty(&phba->active_rrq_list);
ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
if (ndlp &&
(ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||
ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
lpfc_set_rrq_active(phba, ndlp,
ctxp->ctxbuf->sglq->sli4_lxritag,
rxid, 1);
lpfc_sli4_abts_err_handler(phba, ndlp, axri);
}
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6318 XB aborted oxid x%x flg x%x (%x)\n",
ctxp->oxid, ctxp->flag, released);
if (released)
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
if (rrq_empty)
lpfc_worker_wake_up(phba);
return;
}
spin_unlock_irqrestore(&phba->sli4_hba.abts_nvmet_buf_list_lock, iflag);
ctxp = lpfc_nvmet_get_ctx_for_xri(phba, xri);
if (ctxp) {
/*
* Abort already done by FW, so BA_ACC sent.
* However, the transport may be unaware.
*/
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6323 NVMET Rcv ABTS xri x%x ctxp state x%x "
"flag x%x oxid x%x rxid x%x\n",
xri, ctxp->state, ctxp->flag, ctxp->oxid,
rxid);
spin_lock_irqsave(&ctxp->ctxlock, iflag);
ctxp->flag |= LPFC_NVME_ABTS_RCV;
ctxp->state = LPFC_NVME_STE_ABORT;
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
lpfc_nvmeio_data(phba,
"NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
xri, raw_smp_processor_id(), 0);
req = &ctxp->hdlrctx.fcp_req;
if (req)
nvmet_fc_rcv_fcp_abort(phba->targetport, req);
}
#endif
}
int
lpfc_nvmet_rcv_unsol_abort(struct lpfc_vport *vport,
struct fc_frame_header *fc_hdr)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
struct lpfc_hba *phba = vport->phba;
struct lpfc_async_xchg_ctx *ctxp, *next_ctxp;
struct nvmefc_tgt_fcp_req *rsp;
uint32_t sid;
uint16_t oxid, xri;
unsigned long iflag = 0;
sid = sli4_sid_from_fc_hdr(fc_hdr);
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
spin_lock_irqsave(&phba->sli4_hba.abts_nvmet_buf_list_lock, iflag);
list_for_each_entry_safe(ctxp, next_ctxp,
&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
list) {
if (ctxp->oxid != oxid || ctxp->sid != sid)
continue;
xri = ctxp->ctxbuf->sglq->sli4_xritag;
spin_unlock_irqrestore(&phba->sli4_hba.abts_nvmet_buf_list_lock,
iflag);
spin_lock_irqsave(&ctxp->ctxlock, iflag);
ctxp->flag |= LPFC_NVME_ABTS_RCV;
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
lpfc_nvmeio_data(phba,
"NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
xri, raw_smp_processor_id(), 0);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6319 NVMET Rcv ABTS:acc xri x%x\n", xri);
rsp = &ctxp->hdlrctx.fcp_req;
nvmet_fc_rcv_fcp_abort(phba->targetport, rsp);
/* Respond with BA_ACC accordingly */
lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
return 0;
}
spin_unlock_irqrestore(&phba->sli4_hba.abts_nvmet_buf_list_lock, iflag);
/* check the wait list */
if (phba->sli4_hba.nvmet_io_wait_cnt) {
struct rqb_dmabuf *nvmebuf;
struct fc_frame_header *fc_hdr_tmp;
u32 sid_tmp;
u16 oxid_tmp;
bool found = false;
spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
/* match by oxid and s_id */
list_for_each_entry(nvmebuf,
&phba->sli4_hba.lpfc_nvmet_io_wait_list,
hbuf.list) {
fc_hdr_tmp = (struct fc_frame_header *)
(nvmebuf->hbuf.virt);
oxid_tmp = be16_to_cpu(fc_hdr_tmp->fh_ox_id);
sid_tmp = sli4_sid_from_fc_hdr(fc_hdr_tmp);
if (oxid_tmp != oxid || sid_tmp != sid)
continue;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6321 NVMET Rcv ABTS oxid x%x from x%x "
"is waiting for a ctxp\n",
oxid, sid);
list_del_init(&nvmebuf->hbuf.list);
phba->sli4_hba.nvmet_io_wait_cnt--;
found = true;
break;
}
spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
iflag);
/* free buffer since already posted a new DMA buffer to RQ */
if (found) {
nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
/* Respond with BA_ACC accordingly */
lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
return 0;
}
}
/* check active list */
ctxp = lpfc_nvmet_get_ctx_for_oxid(phba, oxid, sid);
if (ctxp) {
xri = ctxp->ctxbuf->sglq->sli4_xritag;
spin_lock_irqsave(&ctxp->ctxlock, iflag);
ctxp->flag |= (LPFC_NVME_ABTS_RCV | LPFC_NVME_ABORT_OP);
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
lpfc_nvmeio_data(phba,
"NVMET ABTS RCV: xri x%x CPU %02x rjt %d\n",
xri, raw_smp_processor_id(), 0);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6322 NVMET Rcv ABTS:acc oxid x%x xri x%x "
"flag x%x state x%x\n",
ctxp->oxid, xri, ctxp->flag, ctxp->state);
if (ctxp->flag & LPFC_NVME_TNOTIFY) {
/* Notify the transport */
nvmet_fc_rcv_fcp_abort(phba->targetport,
&ctxp->hdlrctx.fcp_req);
} else {
cancel_work_sync(&ctxp->ctxbuf->defer_work);
spin_lock_irqsave(&ctxp->ctxlock, iflag);
lpfc_nvmet_defer_release(phba, ctxp);
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
}
lpfc_nvmet_sol_fcp_issue_abort(phba, ctxp, ctxp->sid,
ctxp->oxid);
lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 1);
return 0;
}
lpfc_nvmeio_data(phba, "NVMET ABTS RCV: oxid x%x CPU %02x rjt %d\n",
oxid, raw_smp_processor_id(), 1);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6320 NVMET Rcv ABTS:rjt oxid x%x\n", oxid);
/* Respond with BA_RJT accordingly */
lpfc_sli4_seq_abort_rsp(vport, fc_hdr, 0);
#endif
return 0;
}
static void
lpfc_nvmet_wqfull_flush(struct lpfc_hba *phba, struct lpfc_queue *wq,
struct lpfc_async_xchg_ctx *ctxp)
{
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *nvmewqeq;
struct lpfc_iocbq *next_nvmewqeq;
unsigned long iflags;
struct lpfc_wcqe_complete wcqe;
struct lpfc_wcqe_complete *wcqep;
pring = wq->pring;
wcqep = &wcqe;
/* Fake an ABORT error code back to cmpl routine */
memset(wcqep, 0, sizeof(struct lpfc_wcqe_complete));
bf_set(lpfc_wcqe_c_status, wcqep, IOSTAT_LOCAL_REJECT);
wcqep->parameter = IOERR_ABORT_REQUESTED;
spin_lock_irqsave(&pring->ring_lock, iflags);
list_for_each_entry_safe(nvmewqeq, next_nvmewqeq,
&wq->wqfull_list, list) {
if (ctxp) {
/* Checking for a specific IO to flush */
if (nvmewqeq->context_un.axchg == ctxp) {
list_del(&nvmewqeq->list);
spin_unlock_irqrestore(&pring->ring_lock,
iflags);
memcpy(&nvmewqeq->wcqe_cmpl, wcqep,
sizeof(*wcqep));
lpfc_nvmet_xmt_fcp_op_cmp(phba, nvmewqeq,
nvmewqeq);
return;
}
continue;
} else {
/* Flush all IOs */
list_del(&nvmewqeq->list);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
memcpy(&nvmewqeq->wcqe_cmpl, wcqep, sizeof(*wcqep));
lpfc_nvmet_xmt_fcp_op_cmp(phba, nvmewqeq, nvmewqeq);
spin_lock_irqsave(&pring->ring_lock, iflags);
}
}
if (!ctxp)
wq->q_flag &= ~HBA_NVMET_WQFULL;
spin_unlock_irqrestore(&pring->ring_lock, iflags);
}
void
lpfc_nvmet_wqfull_process(struct lpfc_hba *phba,
struct lpfc_queue *wq)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *nvmewqeq;
struct lpfc_async_xchg_ctx *ctxp;
unsigned long iflags;
int rc;
/*
* Some WQE slots are available, so try to re-issue anything
* on the WQ wqfull_list.
*/
pring = wq->pring;
spin_lock_irqsave(&pring->ring_lock, iflags);
while (!list_empty(&wq->wqfull_list)) {
list_remove_head(&wq->wqfull_list, nvmewqeq, struct lpfc_iocbq,
list);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
ctxp = nvmewqeq->context_un.axchg;
rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, nvmewqeq);
spin_lock_irqsave(&pring->ring_lock, iflags);
if (rc == -EBUSY) {
/* WQ was full again, so put it back on the list */
list_add(&nvmewqeq->list, &wq->wqfull_list);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
return;
}
if (rc == WQE_SUCCESS) {
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (ctxp->ts_cmd_nvme) {
if (ctxp->hdlrctx.fcp_req.op == NVMET_FCOP_RSP)
ctxp->ts_status_wqput = ktime_get_ns();
else
ctxp->ts_data_wqput = ktime_get_ns();
}
#endif
} else {
WARN_ON(rc);
}
}
wq->q_flag &= ~HBA_NVMET_WQFULL;
spin_unlock_irqrestore(&pring->ring_lock, iflags);
#endif
}
void
lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
struct lpfc_nvmet_tgtport *tgtp;
struct lpfc_queue *wq;
uint32_t qidx;
DECLARE_COMPLETION_ONSTACK(tport_unreg_cmp);
if (phba->nvmet_support == 0)
return;
if (phba->targetport) {
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
wq = phba->sli4_hba.hdwq[qidx].io_wq;
lpfc_nvmet_wqfull_flush(phba, wq, NULL);
}
tgtp->tport_unreg_cmp = &tport_unreg_cmp;
nvmet_fc_unregister_targetport(phba->targetport);
if (!wait_for_completion_timeout(&tport_unreg_cmp,
msecs_to_jiffies(LPFC_NVMET_WAIT_TMO)))
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6179 Unreg targetport x%px timeout "
"reached.\n", phba->targetport);
lpfc_nvmet_cleanup_io_context(phba);
}
phba->targetport = NULL;
#endif
}
/**
* lpfc_nvmet_handle_lsreq - Process an NVME LS request
* @phba: pointer to lpfc hba data structure.
* @axchg: pointer to exchange context for the NVME LS request
*
* This routine is used for processing an asychronously received NVME LS
* request. Any remaining validation is done and the LS is then forwarded
* to the nvmet-fc transport via nvmet_fc_rcv_ls_req().
*
* The calling sequence should be: nvmet_fc_rcv_ls_req() -> (processing)
* -> lpfc_nvmet_xmt_ls_rsp/cmp -> req->done.
* lpfc_nvme_xmt_ls_rsp_cmp should free the allocated axchg.
*
* Returns 0 if LS was handled and delivered to the transport
* Returns 1 if LS failed to be handled and should be dropped
*/
int
lpfc_nvmet_handle_lsreq(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *axchg)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
struct lpfc_nvmet_tgtport *tgtp = phba->targetport->private;
uint32_t *payload = axchg->payload;
int rc;
atomic_inc(&tgtp->rcv_ls_req_in);
/*
* Driver passes the ndlp as the hosthandle argument allowing
* the transport to generate LS requests for any associateions
* that are created.
*/
rc = nvmet_fc_rcv_ls_req(phba->targetport, axchg->ndlp, &axchg->ls_rsp,
axchg->payload, axchg->size);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6037 NVMET Unsol rcv: sz %d rc %d: %08x %08x %08x "
"%08x %08x %08x\n", axchg->size, rc,
*payload, *(payload+1), *(payload+2),
*(payload+3), *(payload+4), *(payload+5));
if (!rc) {
atomic_inc(&tgtp->rcv_ls_req_out);
return 0;
}
atomic_inc(&tgtp->rcv_ls_req_drop);
#endif
return 1;
}
static void
lpfc_nvmet_process_rcv_fcp_req(struct lpfc_nvmet_ctxbuf *ctx_buf)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
struct lpfc_async_xchg_ctx *ctxp = ctx_buf->context;
struct lpfc_hba *phba = ctxp->phba;
struct rqb_dmabuf *nvmebuf = ctxp->rqb_buffer;
struct lpfc_nvmet_tgtport *tgtp;
uint32_t *payload, qno;
uint32_t rc;
unsigned long iflags;
if (!nvmebuf) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6159 process_rcv_fcp_req, nvmebuf is NULL, "
"oxid: x%x flg: x%x state: x%x\n",
ctxp->oxid, ctxp->flag, ctxp->state);
spin_lock_irqsave(&ctxp->ctxlock, iflags);
lpfc_nvmet_defer_release(phba, ctxp);
spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid,
ctxp->oxid);
return;
}
if (ctxp->flag & LPFC_NVME_ABTS_RCV) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6324 IO oxid x%x aborted\n",
ctxp->oxid);
return;
}
payload = (uint32_t *)(nvmebuf->dbuf.virt);
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
ctxp->flag |= LPFC_NVME_TNOTIFY;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (ctxp->ts_isr_cmd)
ctxp->ts_cmd_nvme = ktime_get_ns();
#endif
/*
* The calling sequence should be:
* nvmet_fc_rcv_fcp_req->lpfc_nvmet_xmt_fcp_op/cmp- req->done
* lpfc_nvmet_xmt_fcp_op_cmp should free the allocated ctxp.
* When we return from nvmet_fc_rcv_fcp_req, all relevant info
* the NVME command / FC header is stored.
* A buffer has already been reposted for this IO, so just free
* the nvmebuf.
*/
rc = nvmet_fc_rcv_fcp_req(phba->targetport, &ctxp->hdlrctx.fcp_req,
payload, ctxp->size);
/* Process FCP command */
if (rc == 0) {
atomic_inc(&tgtp->rcv_fcp_cmd_out);
spin_lock_irqsave(&ctxp->ctxlock, iflags);
if ((ctxp->flag & LPFC_NVME_CTX_REUSE_WQ) ||
(nvmebuf != ctxp->rqb_buffer)) {
spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
return;
}
ctxp->rqb_buffer = NULL;
spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
return;
}
/* Processing of FCP command is deferred */
if (rc == -EOVERFLOW) {
lpfc_nvmeio_data(phba, "NVMET RCV BUSY: xri x%x sz %d "
"from %06x\n",
ctxp->oxid, ctxp->size, ctxp->sid);
atomic_inc(&tgtp->rcv_fcp_cmd_out);
atomic_inc(&tgtp->defer_fod);
spin_lock_irqsave(&ctxp->ctxlock, iflags);
if (ctxp->flag & LPFC_NVME_CTX_REUSE_WQ) {
spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
return;
}
spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
/*
* Post a replacement DMA buffer to RQ and defer
* freeing rcv buffer till .defer_rcv callback
*/
qno = nvmebuf->idx;
lpfc_post_rq_buffer(
phba, phba->sli4_hba.nvmet_mrq_hdr[qno],
phba->sli4_hba.nvmet_mrq_data[qno], 1, qno);
return;
}
ctxp->flag &= ~LPFC_NVME_TNOTIFY;
atomic_inc(&tgtp->rcv_fcp_cmd_drop);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2582 FCP Drop IO x%x: err x%x: x%x x%x x%x\n",
ctxp->oxid, rc,
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_out),
atomic_read(&tgtp->xmt_fcp_release));
lpfc_nvmeio_data(phba, "NVMET FCP DROP: xri x%x sz %d from %06x\n",
ctxp->oxid, ctxp->size, ctxp->sid);
spin_lock_irqsave(&ctxp->ctxlock, iflags);
lpfc_nvmet_defer_release(phba, ctxp);
spin_unlock_irqrestore(&ctxp->ctxlock, iflags);
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, ctxp->sid, ctxp->oxid);
#endif
}
static void
lpfc_nvmet_fcp_rqst_defer_work(struct work_struct *work)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
struct lpfc_nvmet_ctxbuf *ctx_buf =
container_of(work, struct lpfc_nvmet_ctxbuf, defer_work);
lpfc_nvmet_process_rcv_fcp_req(ctx_buf);
#endif
}
static struct lpfc_nvmet_ctxbuf *
lpfc_nvmet_replenish_context(struct lpfc_hba *phba,
struct lpfc_nvmet_ctx_info *current_infop)
{
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
struct lpfc_nvmet_ctxbuf *ctx_buf = NULL;
struct lpfc_nvmet_ctx_info *get_infop;
int i;
/*
* The current_infop for the MRQ a NVME command IU was received
* on is empty. Our goal is to replenish this MRQs context
* list from a another CPUs.
*
* First we need to pick a context list to start looking on.
* nvmet_ctx_start_cpu has available context the last time
* we needed to replenish this CPU where nvmet_ctx_next_cpu
* is just the next sequential CPU for this MRQ.
*/
if (current_infop->nvmet_ctx_start_cpu)
get_infop = current_infop->nvmet_ctx_start_cpu;
else
get_infop = current_infop->nvmet_ctx_next_cpu;
for (i = 0; i < phba->sli4_hba.num_possible_cpu; i++) {
if (get_infop == current_infop) {
get_infop = get_infop->nvmet_ctx_next_cpu;
continue;
}
spin_lock(&get_infop->nvmet_ctx_list_lock);
/* Just take the entire context list, if there are any */
if (get_infop->nvmet_ctx_list_cnt) {
list_splice_init(&get_infop->nvmet_ctx_list,
¤t_infop->nvmet_ctx_list);
current_infop->nvmet_ctx_list_cnt =
get_infop->nvmet_ctx_list_cnt - 1;
get_infop->nvmet_ctx_list_cnt = 0;
spin_unlock(&get_infop->nvmet_ctx_list_lock);
current_infop->nvmet_ctx_start_cpu = get_infop;
list_remove_head(¤t_infop->nvmet_ctx_list,
ctx_buf, struct lpfc_nvmet_ctxbuf,
list);
return ctx_buf;
}
/* Otherwise, move on to the next CPU for this MRQ */
spin_unlock(&get_infop->nvmet_ctx_list_lock);
get_infop = get_infop->nvmet_ctx_next_cpu;
}
#endif
/* Nothing found, all contexts for the MRQ are in-flight */
return NULL;
}
/**
* lpfc_nvmet_unsol_fcp_buffer - Process an unsolicited event data buffer
* @phba: pointer to lpfc hba data structure.
* @idx: relative index of MRQ vector
* @nvmebuf: pointer to lpfc nvme command HBQ data structure.
* @isr_timestamp: in jiffies.
* @cqflag: cq processing information regarding workload.
*
* This routine is used for processing the WQE associated with a unsolicited
* event. It first determines whether there is an existing ndlp that matches
* the DID from the unsolicited WQE. If not, it will create a new one with
* the DID from the unsolicited WQE. The ELS command from the unsolicited
* WQE is then used to invoke the proper routine and to set up proper state
* of the discovery state machine.
**/
static void
lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
uint32_t idx,
struct rqb_dmabuf *nvmebuf,
uint64_t isr_timestamp,
uint8_t cqflag)
{
struct lpfc_async_xchg_ctx *ctxp;
struct lpfc_nvmet_tgtport *tgtp;
struct fc_frame_header *fc_hdr;
struct lpfc_nvmet_ctxbuf *ctx_buf;
struct lpfc_nvmet_ctx_info *current_infop;
uint32_t size, oxid, sid, qno;
unsigned long iflag;
int current_cpu;
if (!IS_ENABLED(CONFIG_NVME_TARGET_FC))
return;
ctx_buf = NULL;
if (!nvmebuf || !phba->targetport) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6157 NVMET FCP Drop IO\n");
if (nvmebuf)
lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
return;
}
/*
* Get a pointer to the context list for this MRQ based on
* the CPU this MRQ IRQ is associated with. If the CPU association
* changes from our initial assumption, the context list could
* be empty, thus it would need to be replenished with the
* context list from another CPU for this MRQ.
*/
current_cpu = raw_smp_processor_id();
current_infop = lpfc_get_ctx_list(phba, current_cpu, idx);
spin_lock_irqsave(¤t_infop->nvmet_ctx_list_lock, iflag);
if (current_infop->nvmet_ctx_list_cnt) {
list_remove_head(¤t_infop->nvmet_ctx_list,
ctx_buf, struct lpfc_nvmet_ctxbuf, list);
current_infop->nvmet_ctx_list_cnt--;
} else {
ctx_buf = lpfc_nvmet_replenish_context(phba, current_infop);
}
spin_unlock_irqrestore(¤t_infop->nvmet_ctx_list_lock, iflag);
fc_hdr = (struct fc_frame_header *)(nvmebuf->hbuf.virt);
oxid = be16_to_cpu(fc_hdr->fh_ox_id);
size = nvmebuf->bytes_recv;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (phba->hdwqstat_on & LPFC_CHECK_NVMET_IO) {
this_cpu_inc(phba->sli4_hba.c_stat->rcv_io);
if (idx != current_cpu)
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
"6703 CPU Check rcv: "
"cpu %d expect %d\n",
current_cpu, idx);
}
#endif
lpfc_nvmeio_data(phba, "NVMET FCP RCV: xri x%x sz %d CPU %02x\n",
oxid, size, raw_smp_processor_id());
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
if (!ctx_buf) {
/* Queue this NVME IO to process later */
spin_lock_irqsave(&phba->sli4_hba.nvmet_io_wait_lock, iflag);
list_add_tail(&nvmebuf->hbuf.list,
&phba->sli4_hba.lpfc_nvmet_io_wait_list);
phba->sli4_hba.nvmet_io_wait_cnt++;
phba->sli4_hba.nvmet_io_wait_total++;
spin_unlock_irqrestore(&phba->sli4_hba.nvmet_io_wait_lock,
iflag);
/* Post a brand new DMA buffer to RQ */
qno = nvmebuf->idx;
lpfc_post_rq_buffer(
phba, phba->sli4_hba.nvmet_mrq_hdr[qno],
phba->sli4_hba.nvmet_mrq_data[qno], 1, qno);
atomic_inc(&tgtp->defer_ctx);
return;
}
sid = sli4_sid_from_fc_hdr(fc_hdr);
ctxp = (struct lpfc_async_xchg_ctx *)ctx_buf->context;
spin_lock_irqsave(&phba->sli4_hba.t_active_list_lock, iflag);
list_add_tail(&ctxp->list, &phba->sli4_hba.t_active_ctx_list);
spin_unlock_irqrestore(&phba->sli4_hba.t_active_list_lock, iflag);
if (ctxp->state != LPFC_NVME_STE_FREE) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6414 NVMET Context corrupt %d %d oxid x%x\n",
ctxp->state, ctxp->entry_cnt, ctxp->oxid);
}
ctxp->wqeq = NULL;
ctxp->offset = 0;
ctxp->phba = phba;
ctxp->size = size;
ctxp->oxid = oxid;
ctxp->sid = sid;
ctxp->idx = idx;
ctxp->state = LPFC_NVME_STE_RCV;
ctxp->entry_cnt = 1;
ctxp->flag = 0;
ctxp->ctxbuf = ctx_buf;
ctxp->rqb_buffer = (void *)nvmebuf;
ctxp->hdwq = NULL;
spin_lock_init(&ctxp->ctxlock);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (isr_timestamp)
ctxp->ts_isr_cmd = isr_timestamp;
ctxp->ts_cmd_nvme = 0;
ctxp->ts_nvme_data = 0;
ctxp->ts_data_wqput = 0;
ctxp->ts_isr_data = 0;
ctxp->ts_data_nvme = 0;
ctxp->ts_nvme_status = 0;
ctxp->ts_status_wqput = 0;
ctxp->ts_isr_status = 0;
ctxp->ts_status_nvme = 0;
#endif
atomic_inc(&tgtp->rcv_fcp_cmd_in);
/* check for cq processing load */
if (!cqflag) {
lpfc_nvmet_process_rcv_fcp_req(ctx_buf);
return;
}
if (!queue_work(phba->wq, &ctx_buf->defer_work)) {
atomic_inc(&tgtp->rcv_fcp_cmd_drop);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6325 Unable to queue work for oxid x%x. "
"FCP Drop IO [x%x x%x x%x]\n",
ctxp->oxid,
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_out),
atomic_read(&tgtp->xmt_fcp_release));
spin_lock_irqsave(&ctxp->ctxlock, iflag);
lpfc_nvmet_defer_release(phba, ctxp);
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
lpfc_nvmet_unsol_fcp_issue_abort(phba, ctxp, sid, oxid);
}
}
/**
* lpfc_nvmet_unsol_fcp_event - Process an unsolicited event from an nvme nport
* @phba: pointer to lpfc hba data structure.
* @idx: relative index of MRQ vector
* @nvmebuf: pointer to received nvme data structure.
* @isr_timestamp: in jiffies.
* @cqflag: cq processing information regarding workload.
*
* This routine is used to process an unsolicited event received from a SLI
* (Service Level Interface) ring. The actual processing of the data buffer
* associated with the unsolicited event is done by invoking the routine
* lpfc_nvmet_unsol_fcp_buffer() after properly set up the buffer from the
* SLI RQ on which the unsolicited event was received.
**/
void
lpfc_nvmet_unsol_fcp_event(struct lpfc_hba *phba,
uint32_t idx,
struct rqb_dmabuf *nvmebuf,
uint64_t isr_timestamp,
uint8_t cqflag)
{
if (!nvmebuf) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3167 NVMET FCP Drop IO\n");
return;
}
if (phba->nvmet_support == 0) {
lpfc_rq_buf_free(phba, &nvmebuf->hbuf);
return;
}
lpfc_nvmet_unsol_fcp_buffer(phba, idx, nvmebuf, isr_timestamp, cqflag);
}
/**
* lpfc_nvmet_prep_ls_wqe - Allocate and prepare a lpfc wqe data structure
* @phba: pointer to a host N_Port data structure.
* @ctxp: Context info for NVME LS Request
* @rspbuf: DMA buffer of NVME command.
* @rspsize: size of the NVME command.
*
* This routine is used for allocating a lpfc-WQE data structure from
* the driver lpfc-WQE free-list and prepare the WQE with the parameters
* passed into the routine for discovery state machine to issue an Extended
* Link Service (NVME) commands. It is a generic lpfc-WQE allocation
* and preparation routine that is used by all the discovery state machine
* routines and the NVME command-specific fields will be later set up by
* the individual discovery machine routines after calling this routine
* allocating and preparing a generic WQE data structure. It fills in the
* Buffer Descriptor Entries (BDEs), allocates buffers for both command
* payload and response payload (if expected). The reference count on the
* ndlp is incremented by 1 and the reference to the ndlp is put into
* context1 of the WQE data structure for this WQE to hold the ndlp
* reference for the command's callback function to access later.
*
* Return code
* Pointer to the newly allocated/prepared nvme wqe data structure
* NULL - when nvme wqe data structure allocation/preparation failed
**/
static struct lpfc_iocbq *
lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *ctxp,
dma_addr_t rspbuf, uint16_t rspsize)
{
struct lpfc_nodelist *ndlp;
struct lpfc_iocbq *nvmewqe;
union lpfc_wqe128 *wqe;
if (!lpfc_is_link_up(phba)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6104 NVMET prep LS wqe: link err: "
"NPORT x%x oxid:x%x ste %d\n",
ctxp->sid, ctxp->oxid, ctxp->state);
return NULL;
}
/* Allocate buffer for command wqe */
nvmewqe = lpfc_sli_get_iocbq(phba);
if (nvmewqe == NULL) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6105 NVMET prep LS wqe: No WQE: "
"NPORT x%x oxid x%x ste %d\n",
ctxp->sid, ctxp->oxid, ctxp->state);
return NULL;
}
ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
if (!ndlp ||
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6106 NVMET prep LS wqe: No ndlp: "
"NPORT x%x oxid x%x ste %d\n",
ctxp->sid, ctxp->oxid, ctxp->state);
goto nvme_wqe_free_wqeq_exit;
}
ctxp->wqeq = nvmewqe;
/* prevent preparing wqe with NULL ndlp reference */
nvmewqe->ndlp = lpfc_nlp_get(ndlp);
if (!nvmewqe->ndlp)
goto nvme_wqe_free_wqeq_exit;
nvmewqe->context_un.axchg = ctxp;
wqe = &nvmewqe->wqe;
memset(wqe, 0, sizeof(union lpfc_wqe));
/* Words 0 - 2 */
wqe->xmit_sequence.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
wqe->xmit_sequence.bde.tus.f.bdeSize = rspsize;
wqe->xmit_sequence.bde.addrLow = le32_to_cpu(putPaddrLow(rspbuf));
wqe->xmit_sequence.bde.addrHigh = le32_to_cpu(putPaddrHigh(rspbuf));
/* Word 3 */
/* Word 4 */
/* Word 5 */
bf_set(wqe_dfctl, &wqe->xmit_sequence.wge_ctl, 0);
bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, 1);
bf_set(wqe_la, &wqe->xmit_sequence.wge_ctl, 0);
bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, FC_RCTL_ELS4_REP);
bf_set(wqe_type, &wqe->xmit_sequence.wge_ctl, FC_TYPE_NVME);
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_xri_tag, &wqe->xmit_sequence.wqe_com, nvmewqe->sli4_xritag);
/* Word 7 */
bf_set(wqe_cmnd, &wqe->xmit_sequence.wqe_com,
CMD_XMIT_SEQUENCE64_WQE);
bf_set(wqe_ct, &wqe->xmit_sequence.wqe_com, SLI4_CT_RPI);
bf_set(wqe_class, &wqe->xmit_sequence.wqe_com, CLASS3);
bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
/* Word 8 */
wqe->xmit_sequence.wqe_com.abort_tag = nvmewqe->iotag;
/* Word 9 */
bf_set(wqe_reqtag, &wqe->xmit_sequence.wqe_com, nvmewqe->iotag);
/* Needs to be set by caller */
bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com, ctxp->oxid);
/* Word 10 */
bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE);
bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
LPFC_WQE_LENLOC_WORD12);
bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
/* Word 11 */
bf_set(wqe_cqid, &wqe->xmit_sequence.wqe_com,
LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_cmd_type, &wqe->xmit_sequence.wqe_com,
OTHER_COMMAND);
/* Word 12 */
wqe->xmit_sequence.xmit_len = rspsize;
nvmewqe->retry = 1;
nvmewqe->vport = phba->pport;
nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
nvmewqe->cmd_flag |= LPFC_IO_NVME_LS;
/* Xmit NVMET response to remote NPORT <did> */
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6039 Xmit NVMET LS response to remote "
"NPORT x%x iotag:x%x oxid:x%x size:x%x\n",
ndlp->nlp_DID, nvmewqe->iotag, ctxp->oxid,
rspsize);
return nvmewqe;
nvme_wqe_free_wqeq_exit:
nvmewqe->context_un.axchg = NULL;
nvmewqe->ndlp = NULL;
nvmewqe->bpl_dmabuf = NULL;
lpfc_sli_release_iocbq(phba, nvmewqe);
return NULL;
}
static struct lpfc_iocbq *
lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *ctxp)
{
struct nvmefc_tgt_fcp_req *rsp = &ctxp->hdlrctx.fcp_req;
struct lpfc_nvmet_tgtport *tgtp;
struct sli4_sge *sgl;
struct lpfc_nodelist *ndlp;
struct lpfc_iocbq *nvmewqe;
struct scatterlist *sgel;
union lpfc_wqe128 *wqe;
struct ulp_bde64 *bde;
dma_addr_t physaddr;
int i, cnt, nsegs;
bool use_pbde = false;
int xc = 1;
if (!lpfc_is_link_up(phba)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6107 NVMET prep FCP wqe: link err:"
"NPORT x%x oxid x%x ste %d\n",
ctxp->sid, ctxp->oxid, ctxp->state);
return NULL;
}
ndlp = lpfc_findnode_did(phba->pport, ctxp->sid);
if (!ndlp ||
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6108 NVMET prep FCP wqe: no ndlp: "
"NPORT x%x oxid x%x ste %d\n",
ctxp->sid, ctxp->oxid, ctxp->state);
return NULL;
}
if (rsp->sg_cnt > lpfc_tgttemplate.max_sgl_segments) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6109 NVMET prep FCP wqe: seg cnt err: "
"NPORT x%x oxid x%x ste %d cnt %d\n",
ctxp->sid, ctxp->oxid, ctxp->state,
phba->cfg_nvme_seg_cnt);
return NULL;
}
nsegs = rsp->sg_cnt;
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
nvmewqe = ctxp->wqeq;
if (nvmewqe == NULL) {
/* Allocate buffer for command wqe */
nvmewqe = ctxp->ctxbuf->iocbq;
if (nvmewqe == NULL) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6110 NVMET prep FCP wqe: No "
"WQE: NPORT x%x oxid x%x ste %d\n",
ctxp->sid, ctxp->oxid, ctxp->state);
return NULL;
}
ctxp->wqeq = nvmewqe;
xc = 0; /* create new XRI */
nvmewqe->sli4_lxritag = NO_XRI;
nvmewqe->sli4_xritag = NO_XRI;
}
/* Sanity check */
if (((ctxp->state == LPFC_NVME_STE_RCV) &&
(ctxp->entry_cnt == 1)) ||
(ctxp->state == LPFC_NVME_STE_DATA)) {
wqe = &nvmewqe->wqe;
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6111 Wrong state NVMET FCP: %d cnt %d\n",
ctxp->state, ctxp->entry_cnt);
return NULL;
}
sgl = (struct sli4_sge *)ctxp->ctxbuf->sglq->sgl;
switch (rsp->op) {
case NVMET_FCOP_READDATA:
case NVMET_FCOP_READDATA_RSP:
/* From the tsend template, initialize words 7 - 11 */
memcpy(&wqe->words[7],
&lpfc_tsend_cmd_template.words[7],
sizeof(uint32_t) * 5);
/* Words 0 - 2 : The first sg segment */
sgel = &rsp->sg[0];
physaddr = sg_dma_address(sgel);
wqe->fcp_tsend.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
wqe->fcp_tsend.bde.tus.f.bdeSize = sg_dma_len(sgel);
wqe->fcp_tsend.bde.addrLow = cpu_to_le32(putPaddrLow(physaddr));
wqe->fcp_tsend.bde.addrHigh =
cpu_to_le32(putPaddrHigh(physaddr));
/* Word 3 */
wqe->fcp_tsend.payload_offset_len = 0;
/* Word 4 */
wqe->fcp_tsend.relative_offset = ctxp->offset;
/* Word 5 */
wqe->fcp_tsend.reserved = 0;
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe->fcp_tsend.wqe_com,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_xri_tag, &wqe->fcp_tsend.wqe_com,
nvmewqe->sli4_xritag);
/* Word 7 - set ar later */
/* Word 8 */
wqe->fcp_tsend.wqe_com.abort_tag = nvmewqe->iotag;
/* Word 9 */
bf_set(wqe_reqtag, &wqe->fcp_tsend.wqe_com, nvmewqe->iotag);
bf_set(wqe_rcvoxid, &wqe->fcp_tsend.wqe_com, ctxp->oxid);
/* Word 10 - set wqes later, in template xc=1 */
if (!xc)
bf_set(wqe_xc, &wqe->fcp_tsend.wqe_com, 0);
/* Word 12 */
wqe->fcp_tsend.fcp_data_len = rsp->transfer_length;
/* Setup 2 SKIP SGEs */
sgl->addr_hi = 0;
sgl->addr_lo = 0;
sgl->word2 = 0;
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = 0;
sgl++;
sgl->addr_hi = 0;
sgl->addr_lo = 0;
sgl->word2 = 0;
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = 0;
sgl++;
if (rsp->op == NVMET_FCOP_READDATA_RSP) {
atomic_inc(&tgtp->xmt_fcp_read_rsp);
/* In template ar=1 wqes=0 sup=0 irsp=0 irsplen=0 */
if (rsp->rsplen == LPFC_NVMET_SUCCESS_LEN) {
if (ndlp->nlp_flag & NLP_SUPPRESS_RSP)
bf_set(wqe_sup,
&wqe->fcp_tsend.wqe_com, 1);
} else {
bf_set(wqe_wqes, &wqe->fcp_tsend.wqe_com, 1);
bf_set(wqe_irsp, &wqe->fcp_tsend.wqe_com, 1);
bf_set(wqe_irsplen, &wqe->fcp_tsend.wqe_com,
((rsp->rsplen >> 2) - 1));
memcpy(&wqe->words[16], rsp->rspaddr,
rsp->rsplen);
}
} else {
atomic_inc(&tgtp->xmt_fcp_read);
/* In template ar=1 wqes=0 sup=0 irsp=0 irsplen=0 */
bf_set(wqe_ar, &wqe->fcp_tsend.wqe_com, 0);
}
break;
case NVMET_FCOP_WRITEDATA:
/* From the treceive template, initialize words 3 - 11 */
memcpy(&wqe->words[3],
&lpfc_treceive_cmd_template.words[3],
sizeof(uint32_t) * 9);
/* Words 0 - 2 : First SGE is skipped, set invalid BDE type */
wqe->fcp_treceive.bde.tus.f.bdeFlags = LPFC_SGE_TYPE_SKIP;
wqe->fcp_treceive.bde.tus.f.bdeSize = 0;
wqe->fcp_treceive.bde.addrLow = 0;
wqe->fcp_treceive.bde.addrHigh = 0;
/* Word 4 */
wqe->fcp_treceive.relative_offset = ctxp->offset;
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe->fcp_treceive.wqe_com,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_xri_tag, &wqe->fcp_treceive.wqe_com,
nvmewqe->sli4_xritag);
/* Word 7 */
/* Word 8 */
wqe->fcp_treceive.wqe_com.abort_tag = nvmewqe->iotag;
/* Word 9 */
bf_set(wqe_reqtag, &wqe->fcp_treceive.wqe_com, nvmewqe->iotag);
bf_set(wqe_rcvoxid, &wqe->fcp_treceive.wqe_com, ctxp->oxid);
/* Word 10 - in template xc=1 */
if (!xc)
bf_set(wqe_xc, &wqe->fcp_treceive.wqe_com, 0);
/* Word 11 - check for pbde */
if (nsegs == 1 && phba->cfg_enable_pbde) {
use_pbde = true;
/* Word 11 - PBDE bit already preset by template */
} else {
/* Overwrite default template setting */
bf_set(wqe_pbde, &wqe->fcp_treceive.wqe_com, 0);
}
/* Word 12 */
wqe->fcp_tsend.fcp_data_len = rsp->transfer_length;
/* Setup 2 SKIP SGEs */
sgl->addr_hi = 0;
sgl->addr_lo = 0;
sgl->word2 = 0;
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = 0;
sgl++;
sgl->addr_hi = 0;
sgl->addr_lo = 0;
sgl->word2 = 0;
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = 0;
sgl++;
atomic_inc(&tgtp->xmt_fcp_write);
break;
case NVMET_FCOP_RSP:
/* From the treceive template, initialize words 4 - 11 */
memcpy(&wqe->words[4],
&lpfc_trsp_cmd_template.words[4],
sizeof(uint32_t) * 8);
/* Words 0 - 2 */
physaddr = rsp->rspdma;
wqe->fcp_trsp.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
wqe->fcp_trsp.bde.tus.f.bdeSize = rsp->rsplen;
wqe->fcp_trsp.bde.addrLow =
cpu_to_le32(putPaddrLow(physaddr));
wqe->fcp_trsp.bde.addrHigh =
cpu_to_le32(putPaddrHigh(physaddr));
/* Word 3 */
wqe->fcp_trsp.response_len = rsp->rsplen;
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe->fcp_trsp.wqe_com,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_xri_tag, &wqe->fcp_trsp.wqe_com,
nvmewqe->sli4_xritag);
/* Word 7 */
/* Word 8 */
wqe->fcp_trsp.wqe_com.abort_tag = nvmewqe->iotag;
/* Word 9 */
bf_set(wqe_reqtag, &wqe->fcp_trsp.wqe_com, nvmewqe->iotag);
bf_set(wqe_rcvoxid, &wqe->fcp_trsp.wqe_com, ctxp->oxid);
/* Word 10 */
if (xc)
bf_set(wqe_xc, &wqe->fcp_trsp.wqe_com, 1);
/* Word 11 */
/* In template wqes=0 irsp=0 irsplen=0 - good response */
if (rsp->rsplen != LPFC_NVMET_SUCCESS_LEN) {
/* Bad response - embed it */
bf_set(wqe_wqes, &wqe->fcp_trsp.wqe_com, 1);
bf_set(wqe_irsp, &wqe->fcp_trsp.wqe_com, 1);
bf_set(wqe_irsplen, &wqe->fcp_trsp.wqe_com,
((rsp->rsplen >> 2) - 1));
memcpy(&wqe->words[16], rsp->rspaddr, rsp->rsplen);
}
/* Word 12 */
wqe->fcp_trsp.rsvd_12_15[0] = 0;
/* Use rspbuf, NOT sg list */
nsegs = 0;
sgl->word2 = 0;
atomic_inc(&tgtp->xmt_fcp_rsp);
break;
default:
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
"6064 Unknown Rsp Op %d\n",
rsp->op);
return NULL;
}
nvmewqe->retry = 1;
nvmewqe->vport = phba->pport;
nvmewqe->drvrTimeout = (phba->fc_ratov * 3) + LPFC_DRVR_TIMEOUT;
nvmewqe->ndlp = ndlp;
for_each_sg(rsp->sg, sgel, nsegs, i) {
physaddr = sg_dma_address(sgel);
cnt = sg_dma_len(sgel);
sgl->addr_hi = putPaddrHigh(physaddr);
sgl->addr_lo = putPaddrLow(physaddr);
sgl->word2 = 0;
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA);
bf_set(lpfc_sli4_sge_offset, sgl, ctxp->offset);
if ((i+1) == rsp->sg_cnt)
bf_set(lpfc_sli4_sge_last, sgl, 1);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(cnt);
sgl++;
ctxp->offset += cnt;
}
bde = (struct ulp_bde64 *)&wqe->words[13];
if (use_pbde) {
/* decrement sgl ptr backwards once to first data sge */
sgl--;
/* Words 13-15 (PBDE) */
bde->addrLow = sgl->addr_lo;
bde->addrHigh = sgl->addr_hi;
bde->tus.f.bdeSize = le32_to_cpu(sgl->sge_len);
bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
bde->tus.w = cpu_to_le32(bde->tus.w);
} else {
memset(bde, 0, sizeof(struct ulp_bde64));
}
ctxp->state = LPFC_NVME_STE_DATA;
ctxp->entry_cnt++;
return nvmewqe;
}
/**
* lpfc_nvmet_sol_fcp_abort_cmp - Completion handler for ABTS
* @phba: Pointer to HBA context object.
* @cmdwqe: Pointer to driver command WQE object.
* @rspwqe: Pointer to driver response WQE object.
*
* The function is called from SLI ring event handler with no
* lock held. This function is the completion handler for NVME ABTS for FCP cmds
* The function frees memory resources used for the NVME commands.
**/
static void
lpfc_nvmet_sol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe)
{
struct lpfc_async_xchg_ctx *ctxp;
struct lpfc_nvmet_tgtport *tgtp;
uint32_t result;
unsigned long flags;
bool released = false;
struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
ctxp = cmdwqe->context_un.axchg;
result = wcqe->parameter;
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
if (ctxp->flag & LPFC_NVME_ABORT_OP)
atomic_inc(&tgtp->xmt_fcp_abort_cmpl);
spin_lock_irqsave(&ctxp->ctxlock, flags);
ctxp->state = LPFC_NVME_STE_DONE;
/* Check if we already received a free context call
* and we have completed processing an abort situation.
*/
if ((ctxp->flag & LPFC_NVME_CTX_RLS) &&
!(ctxp->flag & LPFC_NVME_XBUSY)) {
spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_del_init(&ctxp->list);
spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
released = true;
}
ctxp->flag &= ~LPFC_NVME_ABORT_OP;
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
atomic_inc(&tgtp->xmt_abort_rsp);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6165 ABORT cmpl: oxid x%x flg x%x (%d) "
"WCQE: %08x %08x %08x %08x\n",
ctxp->oxid, ctxp->flag, released,
wcqe->word0, wcqe->total_data_placed,
result, wcqe->word3);
cmdwqe->rsp_dmabuf = NULL;
cmdwqe->bpl_dmabuf = NULL;
/*
* if transport has released ctx, then can reuse it. Otherwise,
* will be recycled by transport release call.
*/
if (released)
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
/* This is the iocbq for the abort, not the command */
lpfc_sli_release_iocbq(phba, cmdwqe);
/* Since iaab/iaar are NOT set, there is no work left.
* For LPFC_NVME_XBUSY, lpfc_sli4_nvmet_xri_aborted
* should have been called already.
*/
}
/**
* lpfc_nvmet_unsol_fcp_abort_cmp - Completion handler for ABTS
* @phba: Pointer to HBA context object.
* @cmdwqe: Pointer to driver command WQE object.
* @rspwqe: Pointer to driver response WQE object.
*
* The function is called from SLI ring event handler with no
* lock held. This function is the completion handler for NVME ABTS for FCP cmds
* The function frees memory resources used for the NVME commands.
**/
static void
lpfc_nvmet_unsol_fcp_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe)
{
struct lpfc_async_xchg_ctx *ctxp;
struct lpfc_nvmet_tgtport *tgtp;
unsigned long flags;
uint32_t result;
bool released = false;
struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
ctxp = cmdwqe->context_un.axchg;
result = wcqe->parameter;
if (!ctxp) {
/* if context is clear, related io alrady complete */
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6070 ABTS cmpl: WCQE: %08x %08x %08x %08x\n",
wcqe->word0, wcqe->total_data_placed,
result, wcqe->word3);
return;
}
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
spin_lock_irqsave(&ctxp->ctxlock, flags);
if (ctxp->flag & LPFC_NVME_ABORT_OP)
atomic_inc(&tgtp->xmt_fcp_abort_cmpl);
/* Sanity check */
if (ctxp->state != LPFC_NVME_STE_ABORT) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6112 ABTS Wrong state:%d oxid x%x\n",
ctxp->state, ctxp->oxid);
}
/* Check if we already received a free context call
* and we have completed processing an abort situation.
*/
ctxp->state = LPFC_NVME_STE_DONE;
if ((ctxp->flag & LPFC_NVME_CTX_RLS) &&
!(ctxp->flag & LPFC_NVME_XBUSY)) {
spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_del_init(&ctxp->list);
spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
released = true;
}
ctxp->flag &= ~LPFC_NVME_ABORT_OP;
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
atomic_inc(&tgtp->xmt_abort_rsp);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6316 ABTS cmpl oxid x%x flg x%x (%x) "
"WCQE: %08x %08x %08x %08x\n",
ctxp->oxid, ctxp->flag, released,
wcqe->word0, wcqe->total_data_placed,
result, wcqe->word3);
cmdwqe->rsp_dmabuf = NULL;
cmdwqe->bpl_dmabuf = NULL;
/*
* if transport has released ctx, then can reuse it. Otherwise,
* will be recycled by transport release call.
*/
if (released)
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
/* Since iaab/iaar are NOT set, there is no work left.
* For LPFC_NVME_XBUSY, lpfc_sli4_nvmet_xri_aborted
* should have been called already.
*/
}
/**
* lpfc_nvmet_xmt_ls_abort_cmp - Completion handler for ABTS
* @phba: Pointer to HBA context object.
* @cmdwqe: Pointer to driver command WQE object.
* @rspwqe: Pointer to driver response WQE object.
*
* The function is called from SLI ring event handler with no
* lock held. This function is the completion handler for NVME ABTS for LS cmds
* The function frees memory resources used for the NVME commands.
**/
static void
lpfc_nvmet_xmt_ls_abort_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe)
{
struct lpfc_async_xchg_ctx *ctxp;
struct lpfc_nvmet_tgtport *tgtp;
uint32_t result;
struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
ctxp = cmdwqe->context_un.axchg;
result = wcqe->parameter;
if (phba->nvmet_support) {
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
atomic_inc(&tgtp->xmt_ls_abort_cmpl);
}
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6083 Abort cmpl: ctx x%px WCQE:%08x %08x %08x %08x\n",
ctxp, wcqe->word0, wcqe->total_data_placed,
result, wcqe->word3);
if (!ctxp) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6415 NVMET LS Abort No ctx: WCQE: "
"%08x %08x %08x %08x\n",
wcqe->word0, wcqe->total_data_placed,
result, wcqe->word3);
lpfc_sli_release_iocbq(phba, cmdwqe);
return;
}
if (ctxp->state != LPFC_NVME_STE_LS_ABORT) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6416 NVMET LS abort cmpl state mismatch: "
"oxid x%x: %d %d\n",
ctxp->oxid, ctxp->state, ctxp->entry_cnt);
}
cmdwqe->rsp_dmabuf = NULL;
cmdwqe->bpl_dmabuf = NULL;
lpfc_sli_release_iocbq(phba, cmdwqe);
kfree(ctxp);
}
static int
lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *ctxp,
uint32_t sid, uint16_t xri)
{
struct lpfc_nvmet_tgtport *tgtp = NULL;
struct lpfc_iocbq *abts_wqeq;
union lpfc_wqe128 *wqe_abts;
struct lpfc_nodelist *ndlp;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6067 ABTS: sid %x xri x%x/x%x\n",
sid, xri, ctxp->wqeq->sli4_xritag);
if (phba->nvmet_support && phba->targetport)
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
ndlp = lpfc_findnode_did(phba->pport, sid);
if (!ndlp ||
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
if (tgtp)
atomic_inc(&tgtp->xmt_abort_rsp_error);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6134 Drop ABTS - wrong NDLP state x%x.\n",
(ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE);
/* No failure to an ABTS request. */
return 0;
}
abts_wqeq = ctxp->wqeq;
wqe_abts = &abts_wqeq->wqe;
/*
* Since we zero the whole WQE, we need to ensure we set the WQE fields
* that were initialized in lpfc_sli4_nvmet_alloc.
*/
memset(wqe_abts, 0, sizeof(union lpfc_wqe));
/* Word 5 */
bf_set(wqe_dfctl, &wqe_abts->xmit_sequence.wge_ctl, 0);
bf_set(wqe_ls, &wqe_abts->xmit_sequence.wge_ctl, 1);
bf_set(wqe_la, &wqe_abts->xmit_sequence.wge_ctl, 0);
bf_set(wqe_rctl, &wqe_abts->xmit_sequence.wge_ctl, FC_RCTL_BA_ABTS);
bf_set(wqe_type, &wqe_abts->xmit_sequence.wge_ctl, FC_TYPE_BLS);
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe_abts->xmit_sequence.wqe_com,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_xri_tag, &wqe_abts->xmit_sequence.wqe_com,
abts_wqeq->sli4_xritag);
/* Word 7 */
bf_set(wqe_cmnd, &wqe_abts->xmit_sequence.wqe_com,
CMD_XMIT_SEQUENCE64_WQE);
bf_set(wqe_ct, &wqe_abts->xmit_sequence.wqe_com, SLI4_CT_RPI);
bf_set(wqe_class, &wqe_abts->xmit_sequence.wqe_com, CLASS3);
bf_set(wqe_pu, &wqe_abts->xmit_sequence.wqe_com, 0);
/* Word 8 */
wqe_abts->xmit_sequence.wqe_com.abort_tag = abts_wqeq->iotag;
/* Word 9 */
bf_set(wqe_reqtag, &wqe_abts->xmit_sequence.wqe_com, abts_wqeq->iotag);
/* Needs to be set by caller */
bf_set(wqe_rcvoxid, &wqe_abts->xmit_sequence.wqe_com, xri);
/* Word 10 */
bf_set(wqe_iod, &wqe_abts->xmit_sequence.wqe_com, LPFC_WQE_IOD_WRITE);
bf_set(wqe_lenloc, &wqe_abts->xmit_sequence.wqe_com,
LPFC_WQE_LENLOC_WORD12);
bf_set(wqe_ebde_cnt, &wqe_abts->xmit_sequence.wqe_com, 0);
bf_set(wqe_qosd, &wqe_abts->xmit_sequence.wqe_com, 0);
/* Word 11 */
bf_set(wqe_cqid, &wqe_abts->xmit_sequence.wqe_com,
LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_cmd_type, &wqe_abts->xmit_sequence.wqe_com,
OTHER_COMMAND);
abts_wqeq->vport = phba->pport;
abts_wqeq->ndlp = ndlp;
abts_wqeq->context_un.axchg = ctxp;
abts_wqeq->bpl_dmabuf = NULL;
abts_wqeq->num_bdes = 0;
/* hba_wqidx should already be setup from command we are aborting */
abts_wqeq->iocb.ulpCommand = CMD_XMIT_SEQUENCE64_CR;
abts_wqeq->iocb.ulpLe = 1;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6069 Issue ABTS to xri x%x reqtag x%x\n",
xri, abts_wqeq->iotag);
return 1;
}
static int
lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *ctxp,
uint32_t sid, uint16_t xri)
{
struct lpfc_nvmet_tgtport *tgtp;
struct lpfc_iocbq *abts_wqeq;
struct lpfc_nodelist *ndlp;
unsigned long flags;
bool ia;
int rc;
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
if (!ctxp->wqeq) {
ctxp->wqeq = ctxp->ctxbuf->iocbq;
ctxp->wqeq->hba_wqidx = 0;
}
ndlp = lpfc_findnode_did(phba->pport, sid);
if (!ndlp ||
((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))) {
atomic_inc(&tgtp->xmt_abort_rsp_error);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6160 Drop ABORT - wrong NDLP state x%x.\n",
(ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE);
/* No failure to an ABTS request. */
spin_lock_irqsave(&ctxp->ctxlock, flags);
ctxp->flag &= ~LPFC_NVME_ABORT_OP;
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
return 0;
}
/* Issue ABTS for this WQE based on iotag */
ctxp->abort_wqeq = lpfc_sli_get_iocbq(phba);
spin_lock_irqsave(&ctxp->ctxlock, flags);
if (!ctxp->abort_wqeq) {
atomic_inc(&tgtp->xmt_abort_rsp_error);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6161 ABORT failed: No wqeqs: "
"xri: x%x\n", ctxp->oxid);
/* No failure to an ABTS request. */
ctxp->flag &= ~LPFC_NVME_ABORT_OP;
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
return 0;
}
abts_wqeq = ctxp->abort_wqeq;
ctxp->state = LPFC_NVME_STE_ABORT;
ia = (ctxp->flag & LPFC_NVME_ABTS_RCV) ? true : false;
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
/* Announce entry to new IO submit field. */
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6162 ABORT Request to rport DID x%06x "
"for xri x%x x%x\n",
ctxp->sid, ctxp->oxid, ctxp->wqeq->sli4_xritag);
/* If the hba is getting reset, this flag is set. It is
* cleared when the reset is complete and rings reestablished.
*/
spin_lock_irqsave(&phba->hbalock, flags);
/* driver queued commands are in process of being flushed */
if (phba->hba_flag & HBA_IOQ_FLUSH) {
spin_unlock_irqrestore(&phba->hbalock, flags);
atomic_inc(&tgtp->xmt_abort_rsp_error);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6163 Driver in reset cleanup - flushing "
"NVME Req now. hba_flag x%x oxid x%x\n",
phba->hba_flag, ctxp->oxid);
lpfc_sli_release_iocbq(phba, abts_wqeq);
spin_lock_irqsave(&ctxp->ctxlock, flags);
ctxp->flag &= ~LPFC_NVME_ABORT_OP;
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
return 0;
}
/* Outstanding abort is in progress */
if (abts_wqeq->cmd_flag & LPFC_DRIVER_ABORTED) {
spin_unlock_irqrestore(&phba->hbalock, flags);
atomic_inc(&tgtp->xmt_abort_rsp_error);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6164 Outstanding NVME I/O Abort Request "
"still pending on oxid x%x\n",
ctxp->oxid);
lpfc_sli_release_iocbq(phba, abts_wqeq);
spin_lock_irqsave(&ctxp->ctxlock, flags);
ctxp->flag &= ~LPFC_NVME_ABORT_OP;
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
return 0;
}
/* Ready - mark outstanding as aborted by driver. */
abts_wqeq->cmd_flag |= LPFC_DRIVER_ABORTED;
lpfc_sli_prep_abort_xri(phba, abts_wqeq, ctxp->wqeq->sli4_xritag,
abts_wqeq->iotag, CLASS3,
LPFC_WQE_CQ_ID_DEFAULT, ia, true);
/* ABTS WQE must go to the same WQ as the WQE to be aborted */
abts_wqeq->hba_wqidx = ctxp->wqeq->hba_wqidx;
abts_wqeq->cmd_cmpl = lpfc_nvmet_sol_fcp_abort_cmp;
abts_wqeq->cmd_flag |= LPFC_IO_NVME;
abts_wqeq->context_un.axchg = ctxp;
abts_wqeq->vport = phba->pport;
if (!ctxp->hdwq)
ctxp->hdwq = &phba->sli4_hba.hdwq[abts_wqeq->hba_wqidx];
rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
spin_unlock_irqrestore(&phba->hbalock, flags);
if (rc == WQE_SUCCESS) {
atomic_inc(&tgtp->xmt_abort_sol);
return 0;
}
atomic_inc(&tgtp->xmt_abort_rsp_error);
spin_lock_irqsave(&ctxp->ctxlock, flags);
ctxp->flag &= ~LPFC_NVME_ABORT_OP;
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
lpfc_sli_release_iocbq(phba, abts_wqeq);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6166 Failed ABORT issue_wqe with status x%x "
"for oxid x%x.\n",
rc, ctxp->oxid);
return 1;
}
static int
lpfc_nvmet_unsol_fcp_issue_abort(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *ctxp,
uint32_t sid, uint16_t xri)
{
struct lpfc_nvmet_tgtport *tgtp;
struct lpfc_iocbq *abts_wqeq;
unsigned long flags;
bool released = false;
int rc;
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
if (!ctxp->wqeq) {
ctxp->wqeq = ctxp->ctxbuf->iocbq;
ctxp->wqeq->hba_wqidx = 0;
}
if (ctxp->state == LPFC_NVME_STE_FREE) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6417 NVMET ABORT ctx freed %d %d oxid x%x\n",
ctxp->state, ctxp->entry_cnt, ctxp->oxid);
rc = WQE_BUSY;
goto aerr;
}
ctxp->state = LPFC_NVME_STE_ABORT;
ctxp->entry_cnt++;
rc = lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri);
if (rc == 0)
goto aerr;
spin_lock_irqsave(&phba->hbalock, flags);
abts_wqeq = ctxp->wqeq;
abts_wqeq->cmd_cmpl = lpfc_nvmet_unsol_fcp_abort_cmp;
abts_wqeq->cmd_flag |= LPFC_IO_NVMET;
if (!ctxp->hdwq)
ctxp->hdwq = &phba->sli4_hba.hdwq[abts_wqeq->hba_wqidx];
rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
spin_unlock_irqrestore(&phba->hbalock, flags);
if (rc == WQE_SUCCESS) {
return 0;
}
aerr:
spin_lock_irqsave(&ctxp->ctxlock, flags);
if (ctxp->flag & LPFC_NVME_CTX_RLS) {
spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_del_init(&ctxp->list);
spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
released = true;
}
ctxp->flag &= ~(LPFC_NVME_ABORT_OP | LPFC_NVME_CTX_RLS);
spin_unlock_irqrestore(&ctxp->ctxlock, flags);
atomic_inc(&tgtp->xmt_abort_rsp_error);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6135 Failed to Issue ABTS for oxid x%x. Status x%x "
"(%x)\n",
ctxp->oxid, rc, released);
if (released)
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
return 1;
}
/**
* lpfc_nvme_unsol_ls_issue_abort - issue ABTS on an exchange received
* via async frame receive where the frame is not handled.
* @phba: pointer to adapter structure
* @ctxp: pointer to the asynchronously received received sequence
* @sid: address of the remote port to send the ABTS to
* @xri: oxid value to for the ABTS (other side's exchange id).
**/
int
lpfc_nvme_unsol_ls_issue_abort(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *ctxp,
uint32_t sid, uint16_t xri)
{
struct lpfc_nvmet_tgtport *tgtp = NULL;
struct lpfc_iocbq *abts_wqeq;
unsigned long flags;
int rc;
if ((ctxp->state == LPFC_NVME_STE_LS_RCV && ctxp->entry_cnt == 1) ||
(ctxp->state == LPFC_NVME_STE_LS_RSP && ctxp->entry_cnt == 2)) {
ctxp->state = LPFC_NVME_STE_LS_ABORT;
ctxp->entry_cnt++;
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6418 NVMET LS abort state mismatch "
"IO x%x: %d %d\n",
ctxp->oxid, ctxp->state, ctxp->entry_cnt);
ctxp->state = LPFC_NVME_STE_LS_ABORT;
}
if (phba->nvmet_support && phba->targetport)
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
if (!ctxp->wqeq) {
/* Issue ABTS for this WQE based on iotag */
ctxp->wqeq = lpfc_sli_get_iocbq(phba);
if (!ctxp->wqeq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6068 Abort failed: No wqeqs: "
"xri: x%x\n", xri);
/* No failure to an ABTS request. */
kfree(ctxp);
return 0;
}
}
abts_wqeq = ctxp->wqeq;
if (lpfc_nvmet_unsol_issue_abort(phba, ctxp, sid, xri) == 0) {
rc = WQE_BUSY;
goto out;
}
spin_lock_irqsave(&phba->hbalock, flags);
abts_wqeq->cmd_cmpl = lpfc_nvmet_xmt_ls_abort_cmp;
abts_wqeq->cmd_flag |= LPFC_IO_NVME_LS;
rc = lpfc_sli4_issue_wqe(phba, ctxp->hdwq, abts_wqeq);
spin_unlock_irqrestore(&phba->hbalock, flags);
if (rc == WQE_SUCCESS) {
if (tgtp)
atomic_inc(&tgtp->xmt_abort_unsol);
return 0;
}
out:
if (tgtp)
atomic_inc(&tgtp->xmt_abort_rsp_error);
abts_wqeq->rsp_dmabuf = NULL;
abts_wqeq->bpl_dmabuf = NULL;
lpfc_sli_release_iocbq(phba, abts_wqeq);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6056 Failed to Issue ABTS. Status x%x\n", rc);
return 1;
}
/**
* lpfc_nvmet_invalidate_host
*
* @phba: pointer to the driver instance bound to an adapter port.
* @ndlp: pointer to an lpfc_nodelist type
*
* This routine upcalls the nvmet transport to invalidate an NVME
* host to which this target instance had active connections.
*/
void
lpfc_nvmet_invalidate_host(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
u32 ndlp_has_hh;
struct lpfc_nvmet_tgtport *tgtp;
lpfc_printf_log(phba, KERN_INFO,
LOG_NVME | LOG_NVME_ABTS | LOG_NVME_DISC,
"6203 Invalidating hosthandle x%px\n",
ndlp);
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
atomic_set(&tgtp->state, LPFC_NVMET_INV_HOST_ACTIVE);
spin_lock_irq(&ndlp->lock);
ndlp_has_hh = ndlp->fc4_xpt_flags & NLP_XPT_HAS_HH;
spin_unlock_irq(&ndlp->lock);
/* Do not invalidate any nodes that do not have a hosthandle.
* The host_release callbk will cause a node reference
* count imbalance and a crash.
*/
if (!ndlp_has_hh) {
lpfc_printf_log(phba, KERN_INFO,
LOG_NVME | LOG_NVME_ABTS | LOG_NVME_DISC,
"6204 Skip invalidate on node x%px DID x%x\n",
ndlp, ndlp->nlp_DID);
return;
}
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
/* Need to get the nvmet_fc_target_port pointer here.*/
nvmet_fc_invalidate_host(phba->targetport, ndlp);
#endif
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_nvmet.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2014 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/mempool.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_crtn.h"
#include "lpfc_logmsg.h"
#define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */
#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */
#define LPFC_DEVICE_DATA_POOL_SIZE 64 /* max elements in device data pool */
#define LPFC_RRQ_POOL_SIZE 256 /* max elements in non-DMA pool */
#define LPFC_MBX_POOL_SIZE 256 /* max elements in MBX non-DMA pool */
int
lpfc_mem_alloc_active_rrq_pool_s4(struct lpfc_hba *phba) {
size_t bytes;
int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
if (max_xri <= 0)
return -ENOMEM;
bytes = ((BITS_PER_LONG - 1 + max_xri) / BITS_PER_LONG) *
sizeof(unsigned long);
phba->cfg_rrq_xri_bitmap_sz = bytes;
phba->active_rrq_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE,
bytes);
if (!phba->active_rrq_pool)
return -ENOMEM;
else
return 0;
}
/**
* lpfc_mem_alloc - create and allocate all PCI and memory pools
* @phba: HBA to allocate pools for
* @align: alignment requirement for blocks; must be a power of two
*
* Description: Creates and allocates PCI pools lpfc_mbuf_pool,
* lpfc_hrb_pool. Creates and allocates kmalloc-backed mempools
* for LPFC_MBOXQ_t and lpfc_nodelist. Also allocates the VPI bitmask.
*
* Notes: Not interrupt-safe. Must be called with no locks held. If any
* allocation fails, frees all successfully allocated memory before returning.
*
* Returns:
* 0 on success
* -ENOMEM on failure (if any memory allocations fail)
**/
int
lpfc_mem_alloc(struct lpfc_hba *phba, int align)
{
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
int i;
phba->lpfc_mbuf_pool = dma_pool_create("lpfc_mbuf_pool", &phba->pcidev->dev,
LPFC_BPL_SIZE,
align, 0);
if (!phba->lpfc_mbuf_pool)
goto fail;
pool->elements = kmalloc_array(LPFC_MBUF_POOL_SIZE,
sizeof(struct lpfc_dmabuf),
GFP_KERNEL);
if (!pool->elements)
goto fail_free_lpfc_mbuf_pool;
pool->max_count = 0;
pool->current_count = 0;
for ( i = 0; i < LPFC_MBUF_POOL_SIZE; i++) {
pool->elements[i].virt = dma_pool_alloc(phba->lpfc_mbuf_pool,
GFP_KERNEL, &pool->elements[i].phys);
if (!pool->elements[i].virt)
goto fail_free_mbuf_pool;
pool->max_count++;
pool->current_count++;
}
phba->mbox_mem_pool = mempool_create_kmalloc_pool(LPFC_MBX_POOL_SIZE,
sizeof(LPFC_MBOXQ_t));
if (!phba->mbox_mem_pool)
goto fail_free_mbuf_pool;
phba->nlp_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE,
sizeof(struct lpfc_nodelist));
if (!phba->nlp_mem_pool)
goto fail_free_mbox_pool;
if (phba->sli_rev == LPFC_SLI_REV4) {
phba->rrq_pool =
mempool_create_kmalloc_pool(LPFC_RRQ_POOL_SIZE,
sizeof(struct lpfc_node_rrq));
if (!phba->rrq_pool)
goto fail_free_nlp_mem_pool;
phba->lpfc_hrb_pool = dma_pool_create("lpfc_hrb_pool",
&phba->pcidev->dev,
LPFC_HDR_BUF_SIZE, align, 0);
if (!phba->lpfc_hrb_pool)
goto fail_free_rrq_mem_pool;
phba->lpfc_drb_pool = dma_pool_create("lpfc_drb_pool",
&phba->pcidev->dev,
LPFC_DATA_BUF_SIZE, align, 0);
if (!phba->lpfc_drb_pool)
goto fail_free_hrb_pool;
phba->lpfc_hbq_pool = NULL;
} else {
phba->lpfc_hbq_pool = dma_pool_create("lpfc_hbq_pool",
&phba->pcidev->dev, LPFC_BPL_SIZE, align, 0);
if (!phba->lpfc_hbq_pool)
goto fail_free_nlp_mem_pool;
phba->lpfc_hrb_pool = NULL;
phba->lpfc_drb_pool = NULL;
}
if (phba->cfg_EnableXLane) {
phba->device_data_mem_pool = mempool_create_kmalloc_pool(
LPFC_DEVICE_DATA_POOL_SIZE,
sizeof(struct lpfc_device_data));
if (!phba->device_data_mem_pool)
goto fail_free_drb_pool;
} else {
phba->device_data_mem_pool = NULL;
}
return 0;
fail_free_drb_pool:
dma_pool_destroy(phba->lpfc_drb_pool);
phba->lpfc_drb_pool = NULL;
fail_free_hrb_pool:
dma_pool_destroy(phba->lpfc_hrb_pool);
phba->lpfc_hrb_pool = NULL;
fail_free_rrq_mem_pool:
mempool_destroy(phba->rrq_pool);
phba->rrq_pool = NULL;
fail_free_nlp_mem_pool:
mempool_destroy(phba->nlp_mem_pool);
phba->nlp_mem_pool = NULL;
fail_free_mbox_pool:
mempool_destroy(phba->mbox_mem_pool);
phba->mbox_mem_pool = NULL;
fail_free_mbuf_pool:
while (i--)
dma_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt,
pool->elements[i].phys);
kfree(pool->elements);
fail_free_lpfc_mbuf_pool:
dma_pool_destroy(phba->lpfc_mbuf_pool);
phba->lpfc_mbuf_pool = NULL;
fail:
return -ENOMEM;
}
int
lpfc_nvmet_mem_alloc(struct lpfc_hba *phba)
{
phba->lpfc_nvmet_drb_pool =
dma_pool_create("lpfc_nvmet_drb_pool",
&phba->pcidev->dev, LPFC_NVMET_DATA_BUF_SIZE,
SGL_ALIGN_SZ, 0);
if (!phba->lpfc_nvmet_drb_pool) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"6024 Can't enable NVME Target - no memory\n");
return -ENOMEM;
}
return 0;
}
/**
* lpfc_mem_free - Frees memory allocated by lpfc_mem_alloc
* @phba: HBA to free memory for
*
* Description: Free the memory allocated by lpfc_mem_alloc routine. This
* routine is a the counterpart of lpfc_mem_alloc.
*
* Returns: None
**/
void
lpfc_mem_free(struct lpfc_hba *phba)
{
int i;
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
struct lpfc_device_data *device_data;
/* Free HBQ pools */
lpfc_sli_hbqbuf_free_all(phba);
dma_pool_destroy(phba->lpfc_nvmet_drb_pool);
phba->lpfc_nvmet_drb_pool = NULL;
dma_pool_destroy(phba->lpfc_drb_pool);
phba->lpfc_drb_pool = NULL;
dma_pool_destroy(phba->lpfc_hrb_pool);
phba->lpfc_hrb_pool = NULL;
dma_pool_destroy(phba->lpfc_hbq_pool);
phba->lpfc_hbq_pool = NULL;
mempool_destroy(phba->rrq_pool);
phba->rrq_pool = NULL;
/* Free NLP memory pool */
mempool_destroy(phba->nlp_mem_pool);
phba->nlp_mem_pool = NULL;
if (phba->sli_rev == LPFC_SLI_REV4 && phba->active_rrq_pool) {
mempool_destroy(phba->active_rrq_pool);
phba->active_rrq_pool = NULL;
}
/* Free mbox memory pool */
mempool_destroy(phba->mbox_mem_pool);
phba->mbox_mem_pool = NULL;
/* Free MBUF memory pool */
for (i = 0; i < pool->current_count; i++)
dma_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt,
pool->elements[i].phys);
kfree(pool->elements);
dma_pool_destroy(phba->lpfc_mbuf_pool);
phba->lpfc_mbuf_pool = NULL;
/* Free Device Data memory pool */
if (phba->device_data_mem_pool) {
/* Ensure all objects have been returned to the pool */
while (!list_empty(&phba->luns)) {
device_data = list_first_entry(&phba->luns,
struct lpfc_device_data,
listentry);
list_del(&device_data->listentry);
mempool_free(device_data, phba->device_data_mem_pool);
}
mempool_destroy(phba->device_data_mem_pool);
}
phba->device_data_mem_pool = NULL;
return;
}
/**
* lpfc_mem_free_all - Frees all PCI and driver memory
* @phba: HBA to free memory for
*
* Description: Free memory from PCI and driver memory pools and also those
* used : lpfc_sg_dma_buf_pool, lpfc_mbuf_pool, lpfc_hrb_pool. Frees
* kmalloc-backed mempools for LPFC_MBOXQ_t and lpfc_nodelist. Also frees
* the VPI bitmask.
*
* Returns: None
**/
void
lpfc_mem_free_all(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
LPFC_MBOXQ_t *mbox, *next_mbox;
struct lpfc_dmabuf *mp;
/* Free memory used in mailbox queue back to mailbox memory pool */
list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq, list) {
mp = (struct lpfc_dmabuf *)(mbox->ctx_buf);
if (mp) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
list_del(&mbox->list);
mempool_free(mbox, phba->mbox_mem_pool);
}
/* Free memory used in mailbox cmpl list back to mailbox memory pool */
list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq_cmpl, list) {
mp = (struct lpfc_dmabuf *)(mbox->ctx_buf);
if (mp) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
list_del(&mbox->list);
mempool_free(mbox, phba->mbox_mem_pool);
}
/* Free the active mailbox command back to the mailbox memory pool */
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
spin_unlock_irq(&phba->hbalock);
if (psli->mbox_active) {
mbox = psli->mbox_active;
mp = (struct lpfc_dmabuf *)(mbox->ctx_buf);
if (mp) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
mempool_free(mbox, phba->mbox_mem_pool);
psli->mbox_active = NULL;
}
/* Free and destroy all the allocated memory pools */
lpfc_mem_free(phba);
/* Free DMA buffer memory pool */
dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
phba->lpfc_sg_dma_buf_pool = NULL;
dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
phba->lpfc_cmd_rsp_buf_pool = NULL;
/* Free Congestion Data buffer */
if (phba->cgn_i) {
dma_free_coherent(&phba->pcidev->dev,
sizeof(struct lpfc_cgn_info),
phba->cgn_i->virt, phba->cgn_i->phys);
kfree(phba->cgn_i);
phba->cgn_i = NULL;
}
/* Free RX Monitor */
if (phba->rx_monitor) {
lpfc_rx_monitor_destroy_ring(phba->rx_monitor);
kfree(phba->rx_monitor);
phba->rx_monitor = NULL;
}
/* Free the iocb lookup array */
kfree(psli->iocbq_lookup);
psli->iocbq_lookup = NULL;
return;
}
/**
* lpfc_mbuf_alloc - Allocate an mbuf from the lpfc_mbuf_pool PCI pool
* @phba: HBA which owns the pool to allocate from
* @mem_flags: indicates if this is a priority (MEM_PRI) allocation
* @handle: used to return the DMA-mapped address of the mbuf
*
* Description: Allocates a DMA-mapped buffer from the lpfc_mbuf_pool PCI pool.
* Allocates from generic dma_pool_alloc function first and if that fails and
* mem_flags has MEM_PRI set (the only defined flag), returns an mbuf from the
* HBA's pool.
*
* Notes: Not interrupt-safe. Must be called with no locks held. Takes
* phba->hbalock.
*
* Returns:
* pointer to the allocated mbuf on success
* NULL on failure
**/
void *
lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle)
{
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
unsigned long iflags;
void *ret;
ret = dma_pool_alloc(phba->lpfc_mbuf_pool, GFP_KERNEL, handle);
spin_lock_irqsave(&phba->hbalock, iflags);
if (!ret && (mem_flags & MEM_PRI) && pool->current_count) {
pool->current_count--;
ret = pool->elements[pool->current_count].virt;
*handle = pool->elements[pool->current_count].phys;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
return ret;
}
/**
* __lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (locked)
* @phba: HBA which owns the pool to return to
* @virt: mbuf to free
* @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed
*
* Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if
* it is below its max_count, frees the mbuf otherwise.
*
* Notes: Must be called with phba->hbalock held to synchronize access to
* lpfc_mbuf_safety_pool.
*
* Returns: None
**/
void
__lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
{
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
if (pool->current_count < pool->max_count) {
pool->elements[pool->current_count].virt = virt;
pool->elements[pool->current_count].phys = dma;
pool->current_count++;
} else {
dma_pool_free(phba->lpfc_mbuf_pool, virt, dma);
}
return;
}
/**
* lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (unlocked)
* @phba: HBA which owns the pool to return to
* @virt: mbuf to free
* @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed
*
* Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if
* it is below its max_count, frees the mbuf otherwise.
*
* Notes: Takes phba->hbalock. Can be called with or without other locks held.
*
* Returns: None
**/
void
lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
{
unsigned long iflags;
spin_lock_irqsave(&phba->hbalock, iflags);
__lpfc_mbuf_free(phba, virt, dma);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return;
}
/**
* lpfc_nvmet_buf_alloc - Allocate an nvmet_buf from the
* lpfc_sg_dma_buf_pool PCI pool
* @phba: HBA which owns the pool to allocate from
* @mem_flags: indicates if this is a priority (MEM_PRI) allocation
* @handle: used to return the DMA-mapped address of the nvmet_buf
*
* Description: Allocates a DMA-mapped buffer from the lpfc_sg_dma_buf_pool
* PCI pool. Allocates from generic dma_pool_alloc function.
*
* Returns:
* pointer to the allocated nvmet_buf on success
* NULL on failure
**/
void *
lpfc_nvmet_buf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle)
{
void *ret;
ret = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool, GFP_KERNEL, handle);
return ret;
}
/**
* lpfc_nvmet_buf_free - Free an nvmet_buf from the lpfc_sg_dma_buf_pool
* PCI pool
* @phba: HBA which owns the pool to return to
* @virt: nvmet_buf to free
* @dma: the DMA-mapped address of the lpfc_sg_dma_buf_pool to be freed
*
* Returns: None
**/
void
lpfc_nvmet_buf_free(struct lpfc_hba *phba, void *virt, dma_addr_t dma)
{
dma_pool_free(phba->lpfc_sg_dma_buf_pool, virt, dma);
}
/**
* lpfc_els_hbq_alloc - Allocate an HBQ buffer
* @phba: HBA to allocate HBQ buffer for
*
* Description: Allocates a DMA-mapped HBQ buffer from the lpfc_hrb_pool PCI
* pool along a non-DMA-mapped container for it.
*
* Notes: Not interrupt-safe. Must be called with no locks held.
*
* Returns:
* pointer to HBQ on success
* NULL on failure
**/
struct hbq_dmabuf *
lpfc_els_hbq_alloc(struct lpfc_hba *phba)
{
struct hbq_dmabuf *hbqbp;
hbqbp = kzalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL);
if (!hbqbp)
return NULL;
hbqbp->dbuf.virt = dma_pool_alloc(phba->lpfc_hbq_pool, GFP_KERNEL,
&hbqbp->dbuf.phys);
if (!hbqbp->dbuf.virt) {
kfree(hbqbp);
return NULL;
}
hbqbp->total_size = LPFC_BPL_SIZE;
return hbqbp;
}
/**
* lpfc_els_hbq_free - Frees an HBQ buffer allocated with lpfc_els_hbq_alloc
* @phba: HBA buffer was allocated for
* @hbqbp: HBQ container returned by lpfc_els_hbq_alloc
*
* Description: Frees both the container and the DMA-mapped buffer returned by
* lpfc_els_hbq_alloc.
*
* Notes: Can be called with or without locks held.
*
* Returns: None
**/
void
lpfc_els_hbq_free(struct lpfc_hba *phba, struct hbq_dmabuf *hbqbp)
{
dma_pool_free(phba->lpfc_hbq_pool, hbqbp->dbuf.virt, hbqbp->dbuf.phys);
kfree(hbqbp);
return;
}
/**
* lpfc_sli4_rb_alloc - Allocate an SLI4 Receive buffer
* @phba: HBA to allocate a receive buffer for
*
* Description: Allocates a DMA-mapped receive buffer from the lpfc_hrb_pool PCI
* pool along a non-DMA-mapped container for it.
*
* Notes: Not interrupt-safe. Must be called with no locks held.
*
* Returns:
* pointer to HBQ on success
* NULL on failure
**/
struct hbq_dmabuf *
lpfc_sli4_rb_alloc(struct lpfc_hba *phba)
{
struct hbq_dmabuf *dma_buf;
dma_buf = kzalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL);
if (!dma_buf)
return NULL;
dma_buf->hbuf.virt = dma_pool_alloc(phba->lpfc_hrb_pool, GFP_KERNEL,
&dma_buf->hbuf.phys);
if (!dma_buf->hbuf.virt) {
kfree(dma_buf);
return NULL;
}
dma_buf->dbuf.virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
&dma_buf->dbuf.phys);
if (!dma_buf->dbuf.virt) {
dma_pool_free(phba->lpfc_hrb_pool, dma_buf->hbuf.virt,
dma_buf->hbuf.phys);
kfree(dma_buf);
return NULL;
}
dma_buf->total_size = LPFC_DATA_BUF_SIZE;
return dma_buf;
}
/**
* lpfc_sli4_rb_free - Frees a receive buffer
* @phba: HBA buffer was allocated for
* @dmab: DMA Buffer container returned by lpfc_sli4_hbq_alloc
*
* Description: Frees both the container and the DMA-mapped buffers returned by
* lpfc_sli4_rb_alloc.
*
* Notes: Can be called with or without locks held.
*
* Returns: None
**/
void
lpfc_sli4_rb_free(struct lpfc_hba *phba, struct hbq_dmabuf *dmab)
{
dma_pool_free(phba->lpfc_hrb_pool, dmab->hbuf.virt, dmab->hbuf.phys);
dma_pool_free(phba->lpfc_drb_pool, dmab->dbuf.virt, dmab->dbuf.phys);
kfree(dmab);
}
/**
* lpfc_sli4_nvmet_alloc - Allocate an SLI4 Receive buffer
* @phba: HBA to allocate a receive buffer for
*
* Description: Allocates a DMA-mapped receive buffer from the lpfc_hrb_pool PCI
* pool along a non-DMA-mapped container for it.
*
* Returns:
* pointer to HBQ on success
* NULL on failure
**/
struct rqb_dmabuf *
lpfc_sli4_nvmet_alloc(struct lpfc_hba *phba)
{
struct rqb_dmabuf *dma_buf;
dma_buf = kzalloc(sizeof(*dma_buf), GFP_KERNEL);
if (!dma_buf)
return NULL;
dma_buf->hbuf.virt = dma_pool_alloc(phba->lpfc_hrb_pool, GFP_KERNEL,
&dma_buf->hbuf.phys);
if (!dma_buf->hbuf.virt) {
kfree(dma_buf);
return NULL;
}
dma_buf->dbuf.virt = dma_pool_alloc(phba->lpfc_nvmet_drb_pool,
GFP_KERNEL, &dma_buf->dbuf.phys);
if (!dma_buf->dbuf.virt) {
dma_pool_free(phba->lpfc_hrb_pool, dma_buf->hbuf.virt,
dma_buf->hbuf.phys);
kfree(dma_buf);
return NULL;
}
dma_buf->total_size = LPFC_NVMET_DATA_BUF_SIZE;
return dma_buf;
}
/**
* lpfc_sli4_nvmet_free - Frees a receive buffer
* @phba: HBA buffer was allocated for
* @dmab: DMA Buffer container returned by lpfc_sli4_rbq_alloc
*
* Description: Frees both the container and the DMA-mapped buffers returned by
* lpfc_sli4_nvmet_alloc.
*
* Notes: Can be called with or without locks held.
*
* Returns: None
**/
void
lpfc_sli4_nvmet_free(struct lpfc_hba *phba, struct rqb_dmabuf *dmab)
{
dma_pool_free(phba->lpfc_hrb_pool, dmab->hbuf.virt, dmab->hbuf.phys);
dma_pool_free(phba->lpfc_nvmet_drb_pool,
dmab->dbuf.virt, dmab->dbuf.phys);
kfree(dmab);
}
/**
* lpfc_in_buf_free - Free a DMA buffer
* @phba: HBA buffer is associated with
* @mp: Buffer to free
*
* Description: Frees the given DMA buffer in the appropriate way given if the
* HBA is running in SLI3 mode with HBQs enabled.
*
* Notes: Takes phba->hbalock. Can be called with or without other locks held.
*
* Returns: None
**/
void
lpfc_in_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp)
{
struct hbq_dmabuf *hbq_entry;
unsigned long flags;
if (!mp)
return;
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
hbq_entry = container_of(mp, struct hbq_dmabuf, dbuf);
/* Check whether HBQ is still in use */
spin_lock_irqsave(&phba->hbalock, flags);
if (!phba->hbq_in_use) {
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
list_del(&hbq_entry->dbuf.list);
if (hbq_entry->tag == -1) {
(phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
(phba, hbq_entry);
} else {
lpfc_sli_free_hbq(phba, hbq_entry);
}
spin_unlock_irqrestore(&phba->hbalock, flags);
} else {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
return;
}
/**
* lpfc_rq_buf_free - Free a RQ DMA buffer
* @phba: HBA buffer is associated with
* @mp: Buffer to free
*
* Description: Frees the given DMA buffer in the appropriate way given by
* reposting it to its associated RQ so it can be reused.
*
* Notes: Takes phba->hbalock. Can be called with or without other locks held.
*
* Returns: None
**/
void
lpfc_rq_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp)
{
struct lpfc_rqb *rqbp;
struct lpfc_rqe hrqe;
struct lpfc_rqe drqe;
struct rqb_dmabuf *rqb_entry;
unsigned long flags;
int rc;
if (!mp)
return;
rqb_entry = container_of(mp, struct rqb_dmabuf, hbuf);
rqbp = rqb_entry->hrq->rqbp;
spin_lock_irqsave(&phba->hbalock, flags);
list_del(&rqb_entry->hbuf.list);
hrqe.address_lo = putPaddrLow(rqb_entry->hbuf.phys);
hrqe.address_hi = putPaddrHigh(rqb_entry->hbuf.phys);
drqe.address_lo = putPaddrLow(rqb_entry->dbuf.phys);
drqe.address_hi = putPaddrHigh(rqb_entry->dbuf.phys);
rc = lpfc_sli4_rq_put(rqb_entry->hrq, rqb_entry->drq, &hrqe, &drqe);
if (rc < 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"6409 Cannot post to HRQ %d: %x %x %x "
"DRQ %x %x\n",
rqb_entry->hrq->queue_id,
rqb_entry->hrq->host_index,
rqb_entry->hrq->hba_index,
rqb_entry->hrq->entry_count,
rqb_entry->drq->host_index,
rqb_entry->drq->hba_index);
(rqbp->rqb_free_buffer)(phba, rqb_entry);
} else {
list_add_tail(&rqb_entry->hbuf.list, &rqbp->rqb_buffer_list);
rqbp->buffer_count++;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_mem.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/aer.h>
#include <linux/gfp.h>
#include <linux/kernel.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_version.h"
#include "lpfc_compat.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_attr.h"
#define LPFC_DEF_DEVLOSS_TMO 30
#define LPFC_MIN_DEVLOSS_TMO 1
#define LPFC_MAX_DEVLOSS_TMO 255
#define LPFC_MAX_INFO_TMP_LEN 100
#define LPFC_INFO_MORE_STR "\nCould be more info...\n"
/*
* Write key size should be multiple of 4. If write key is changed
* make sure that library write key is also changed.
*/
#define LPFC_REG_WRITE_KEY_SIZE 4
#define LPFC_REG_WRITE_KEY "EMLX"
const char *const trunk_errmsg[] = { /* map errcode */
"", /* There is no such error code at index 0*/
"link negotiated speed does not match existing"
" trunk - link was \"low\" speed",
"link negotiated speed does not match"
" existing trunk - link was \"middle\" speed",
"link negotiated speed does not match existing"
" trunk - link was \"high\" speed",
"Attached to non-trunking port - F_Port",
"Attached to non-trunking port - N_Port",
"FLOGI response timeout",
"non-FLOGI frame received",
"Invalid FLOGI response",
"Trunking initialization protocol",
"Trunk peer device mismatch",
};
/**
* lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
* @incr: integer to convert.
* @hdw: ascii string holding converted integer plus a string terminator.
*
* Description:
* JEDEC Joint Electron Device Engineering Council.
* Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
* character string. The string is then terminated with a NULL in byte 9.
* Hex 0-9 becomes ascii '0' to '9'.
* Hex a-f becomes ascii '=' to 'B' capital B.
*
* Notes:
* Coded for 32 bit integers only.
**/
static void
lpfc_jedec_to_ascii(int incr, char hdw[])
{
int i, j;
for (i = 0; i < 8; i++) {
j = (incr & 0xf);
if (j <= 9)
hdw[7 - i] = 0x30 + j;
else
hdw[7 - i] = 0x61 + j - 10;
incr = (incr >> 4);
}
hdw[8] = 0;
return;
}
static ssize_t
lpfc_cmf_info_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_cgn_info *cp = NULL;
struct lpfc_cgn_stat *cgs;
int len = 0;
int cpu;
u64 rcv, total;
char tmp[LPFC_MAX_INFO_TMP_LEN] = {0};
if (phba->cgn_i)
cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
scnprintf(tmp, sizeof(tmp),
"Congestion Mgmt Info: E2Eattr %d Ver %d "
"CMF %d cnt %d\n",
phba->sli4_hba.pc_sli4_params.mi_cap,
cp ? cp->cgn_info_version : 0,
phba->sli4_hba.pc_sli4_params.cmf, phba->cmf_timer_cnt);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
if (!phba->sli4_hba.pc_sli4_params.cmf)
goto buffer_done;
switch (phba->cgn_init_reg_signal) {
case EDC_CG_SIG_WARN_ONLY:
scnprintf(tmp, sizeof(tmp),
"Register: Init: Signal:WARN ");
break;
case EDC_CG_SIG_WARN_ALARM:
scnprintf(tmp, sizeof(tmp),
"Register: Init: Signal:WARN|ALARM ");
break;
default:
scnprintf(tmp, sizeof(tmp),
"Register: Init: Signal:NONE ");
break;
}
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
switch (phba->cgn_init_reg_fpin) {
case LPFC_CGN_FPIN_WARN:
scnprintf(tmp, sizeof(tmp),
"FPIN:WARN\n");
break;
case LPFC_CGN_FPIN_ALARM:
scnprintf(tmp, sizeof(tmp),
"FPIN:ALARM\n");
break;
case LPFC_CGN_FPIN_BOTH:
scnprintf(tmp, sizeof(tmp),
"FPIN:WARN|ALARM\n");
break;
default:
scnprintf(tmp, sizeof(tmp),
"FPIN:NONE\n");
break;
}
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
switch (phba->cgn_reg_signal) {
case EDC_CG_SIG_WARN_ONLY:
scnprintf(tmp, sizeof(tmp),
" Current: Signal:WARN ");
break;
case EDC_CG_SIG_WARN_ALARM:
scnprintf(tmp, sizeof(tmp),
" Current: Signal:WARN|ALARM ");
break;
default:
scnprintf(tmp, sizeof(tmp),
" Current: Signal:NONE ");
break;
}
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
switch (phba->cgn_reg_fpin) {
case LPFC_CGN_FPIN_WARN:
scnprintf(tmp, sizeof(tmp),
"FPIN:WARN ACQEcnt:%d\n", phba->cgn_acqe_cnt);
break;
case LPFC_CGN_FPIN_ALARM:
scnprintf(tmp, sizeof(tmp),
"FPIN:ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt);
break;
case LPFC_CGN_FPIN_BOTH:
scnprintf(tmp, sizeof(tmp),
"FPIN:WARN|ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt);
break;
default:
scnprintf(tmp, sizeof(tmp),
"FPIN:NONE ACQEcnt:%d\n", phba->cgn_acqe_cnt);
break;
}
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
if (phba->cmf_active_mode != phba->cgn_p.cgn_param_mode) {
switch (phba->cmf_active_mode) {
case LPFC_CFG_OFF:
scnprintf(tmp, sizeof(tmp), "Active: Mode:Off\n");
break;
case LPFC_CFG_MANAGED:
scnprintf(tmp, sizeof(tmp), "Active: Mode:Managed\n");
break;
case LPFC_CFG_MONITOR:
scnprintf(tmp, sizeof(tmp), "Active: Mode:Monitor\n");
break;
default:
scnprintf(tmp, sizeof(tmp), "Active: Mode:Unknown\n");
}
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
}
switch (phba->cgn_p.cgn_param_mode) {
case LPFC_CFG_OFF:
scnprintf(tmp, sizeof(tmp), "Config: Mode:Off ");
break;
case LPFC_CFG_MANAGED:
scnprintf(tmp, sizeof(tmp), "Config: Mode:Managed ");
break;
case LPFC_CFG_MONITOR:
scnprintf(tmp, sizeof(tmp), "Config: Mode:Monitor ");
break;
default:
scnprintf(tmp, sizeof(tmp), "Config: Mode:Unknown ");
}
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
total = 0;
rcv = 0;
for_each_present_cpu(cpu) {
cgs = per_cpu_ptr(phba->cmf_stat, cpu);
total += atomic64_read(&cgs->total_bytes);
rcv += atomic64_read(&cgs->rcv_bytes);
}
scnprintf(tmp, sizeof(tmp),
"IObusy:%d Info:%d Bytes: Rcv:x%llx Total:x%llx\n",
atomic_read(&phba->cmf_busy),
phba->cmf_active_info, rcv, total);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"Port_speed:%d Link_byte_cnt:%ld "
"Max_byte_per_interval:%ld\n",
lpfc_sli_port_speed_get(phba),
(unsigned long)phba->cmf_link_byte_count,
(unsigned long)phba->cmf_max_bytes_per_interval);
strlcat(buf, tmp, PAGE_SIZE);
buffer_done:
len = strnlen(buf, PAGE_SIZE);
if (unlikely(len >= (PAGE_SIZE - 1))) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6312 Catching potential buffer "
"overflow > PAGE_SIZE = %lu bytes\n",
PAGE_SIZE);
strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR),
LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1);
}
return len;
}
/**
* lpfc_drvr_version_show - Return the Emulex driver string with version number
* @dev: class unused variable.
* @attr: device attribute, not used.
* @buf: on return contains the module description text.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
}
/**
* lpfc_enable_fip_show - Return the fip mode of the HBA
* @dev: class unused variable.
* @attr: device attribute, not used.
* @buf: on return contains the module description text.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
if (phba->hba_flag & HBA_FIP_SUPPORT)
return scnprintf(buf, PAGE_SIZE, "1\n");
else
return scnprintf(buf, PAGE_SIZE, "0\n");
}
static ssize_t
lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = shost_priv(shost);
struct lpfc_hba *phba = vport->phba;
struct lpfc_nvmet_tgtport *tgtp;
struct nvme_fc_local_port *localport;
struct lpfc_nvme_lport *lport;
struct lpfc_nvme_rport *rport;
struct lpfc_nodelist *ndlp;
struct nvme_fc_remote_port *nrport;
struct lpfc_fc4_ctrl_stat *cstat;
uint64_t data1, data2, data3;
uint64_t totin, totout, tot;
char *statep;
int i;
int len = 0;
char tmp[LPFC_MAX_INFO_TMP_LEN] = {0};
if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n");
return len;
}
if (phba->nvmet_support) {
if (!phba->targetport) {
len = scnprintf(buf, PAGE_SIZE,
"NVME Target: x%llx is not allocated\n",
wwn_to_u64(vport->fc_portname.u.wwn));
return len;
}
/* Port state is only one of two values for now. */
if (phba->targetport->port_id)
statep = "REGISTERED";
else
statep = "INIT";
scnprintf(tmp, sizeof(tmp),
"NVME Target Enabled State %s\n",
statep);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"%s%d WWPN x%llx WWNN x%llx DID x%06x\n",
"NVME Target: lpfc",
phba->brd_no,
wwn_to_u64(vport->fc_portname.u.wwn),
wwn_to_u64(vport->fc_nodename.u.wwn),
phba->targetport->port_id);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE)
>= PAGE_SIZE)
goto buffer_done;
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
scnprintf(tmp, sizeof(tmp),
"LS: Rcv %08x Drop %08x Abort %08x\n",
atomic_read(&tgtp->rcv_ls_req_in),
atomic_read(&tgtp->rcv_ls_req_drop),
atomic_read(&tgtp->xmt_ls_abort));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
if (atomic_read(&tgtp->rcv_ls_req_in) !=
atomic_read(&tgtp->rcv_ls_req_out)) {
scnprintf(tmp, sizeof(tmp),
"Rcv LS: in %08x != out %08x\n",
atomic_read(&tgtp->rcv_ls_req_in),
atomic_read(&tgtp->rcv_ls_req_out));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
}
scnprintf(tmp, sizeof(tmp),
"LS: Xmt %08x Drop %08x Cmpl %08x\n",
atomic_read(&tgtp->xmt_ls_rsp),
atomic_read(&tgtp->xmt_ls_drop),
atomic_read(&tgtp->xmt_ls_rsp_cmpl));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"LS: RSP Abort %08x xb %08x Err %08x\n",
atomic_read(&tgtp->xmt_ls_rsp_aborted),
atomic_read(&tgtp->xmt_ls_rsp_xb_set),
atomic_read(&tgtp->xmt_ls_rsp_error));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"FCP: Rcv %08x Defer %08x Release %08x "
"Drop %08x\n",
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_defer),
atomic_read(&tgtp->xmt_fcp_release),
atomic_read(&tgtp->rcv_fcp_cmd_drop));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
atomic_read(&tgtp->rcv_fcp_cmd_out)) {
scnprintf(tmp, sizeof(tmp),
"Rcv FCP: in %08x != out %08x\n",
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_out));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
}
scnprintf(tmp, sizeof(tmp),
"FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x "
"drop %08x\n",
atomic_read(&tgtp->xmt_fcp_read),
atomic_read(&tgtp->xmt_fcp_read_rsp),
atomic_read(&tgtp->xmt_fcp_write),
atomic_read(&tgtp->xmt_fcp_rsp),
atomic_read(&tgtp->xmt_fcp_drop));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"FCP Rsp Cmpl: %08x err %08x drop %08x\n",
atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
atomic_read(&tgtp->xmt_fcp_rsp_error),
atomic_read(&tgtp->xmt_fcp_rsp_drop));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"FCP Rsp Abort: %08x xb %08x xricqe %08x\n",
atomic_read(&tgtp->xmt_fcp_rsp_aborted),
atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"ABORT: Xmt %08x Cmpl %08x\n",
atomic_read(&tgtp->xmt_fcp_abort),
atomic_read(&tgtp->xmt_fcp_abort_cmpl));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n",
atomic_read(&tgtp->xmt_abort_sol),
atomic_read(&tgtp->xmt_abort_unsol),
atomic_read(&tgtp->xmt_abort_rsp),
atomic_read(&tgtp->xmt_abort_rsp_error));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"DELAY: ctx %08x fod %08x wqfull %08x\n",
atomic_read(&tgtp->defer_ctx),
atomic_read(&tgtp->defer_fod),
atomic_read(&tgtp->defer_wqfull));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
/* Calculate outstanding IOs */
tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
tot += atomic_read(&tgtp->xmt_fcp_release);
tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
scnprintf(tmp, sizeof(tmp),
"IO_CTX: %08x WAIT: cur %08x tot %08x\n"
"CTX Outstanding %08llx\n\n",
phba->sli4_hba.nvmet_xri_cnt,
phba->sli4_hba.nvmet_io_wait_cnt,
phba->sli4_hba.nvmet_io_wait_total,
tot);
strlcat(buf, tmp, PAGE_SIZE);
goto buffer_done;
}
localport = vport->localport;
if (!localport) {
len = scnprintf(buf, PAGE_SIZE,
"NVME Initiator x%llx is not allocated\n",
wwn_to_u64(vport->fc_portname.u.wwn));
return len;
}
lport = (struct lpfc_nvme_lport *)localport->private;
if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"XRI Dist lpfc%d Total %d IO %d ELS %d\n",
phba->brd_no,
phba->sli4_hba.max_cfg_param.max_xri,
phba->sli4_hba.io_xri_max,
lpfc_sli4_get_els_iocb_cnt(phba));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
/* Port state is only one of two values for now. */
if (localport->port_id)
statep = "ONLINE";
else
statep = "UNKNOWN ";
scnprintf(tmp, sizeof(tmp),
"%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n",
"NVME LPORT lpfc",
phba->brd_no,
wwn_to_u64(vport->fc_portname.u.wwn),
wwn_to_u64(vport->fc_nodename.u.wwn),
localport->port_id, statep);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
nrport = NULL;
spin_lock(&ndlp->lock);
rport = lpfc_ndlp_get_nrport(ndlp);
if (rport)
nrport = rport->remoteport;
spin_unlock(&ndlp->lock);
if (!nrport)
continue;
/* Port state is only one of two values for now. */
switch (nrport->port_state) {
case FC_OBJSTATE_ONLINE:
statep = "ONLINE";
break;
case FC_OBJSTATE_UNKNOWN:
statep = "UNKNOWN ";
break;
default:
statep = "UNSUPPORTED";
break;
}
/* Tab in to show lport ownership. */
if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
if (phba->brd_no >= 10) {
if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
}
scnprintf(tmp, sizeof(tmp), "WWPN x%llx ",
nrport->port_name);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
scnprintf(tmp, sizeof(tmp), "WWNN x%llx ",
nrport->node_name);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
scnprintf(tmp, sizeof(tmp), "DID x%06x ",
nrport->port_id);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
/* An NVME rport can have multiple roles. */
if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) {
if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
}
if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) {
if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
}
if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) {
if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
}
if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
FC_PORT_ROLE_NVME_TARGET |
FC_PORT_ROLE_NVME_DISCOVERY)) {
scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x",
nrport->port_role);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
}
scnprintf(tmp, sizeof(tmp), "%s\n", statep);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto unlock_buf_done;
}
spin_unlock_irq(shost->host_lock);
if (!lport)
goto buffer_done;
if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"LS: Xmt %010x Cmpl %010x Abort %08x\n",
atomic_read(&lport->fc4NvmeLsRequests),
atomic_read(&lport->fc4NvmeLsCmpls),
atomic_read(&lport->xmt_ls_abort));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"LS XMIT: Err %08x CMPL: xb %08x Err %08x\n",
atomic_read(&lport->xmt_ls_err),
atomic_read(&lport->cmpl_ls_xb),
atomic_read(&lport->cmpl_ls_err));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
totin = 0;
totout = 0;
for (i = 0; i < phba->cfg_hdw_queue; i++) {
cstat = &phba->sli4_hba.hdwq[i].nvme_cstat;
tot = cstat->io_cmpls;
totin += tot;
data1 = cstat->input_requests;
data2 = cstat->output_requests;
data3 = cstat->control_requests;
totout += (data1 + data2 + data3);
}
scnprintf(tmp, sizeof(tmp),
"Total FCP Cmpl %016llx Issue %016llx "
"OutIO %016llx\n",
totin, totout, totout - totin);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"\tabort %08x noxri %08x nondlp %08x qdepth %08x "
"wqerr %08x err %08x\n",
atomic_read(&lport->xmt_fcp_abort),
atomic_read(&lport->xmt_fcp_noxri),
atomic_read(&lport->xmt_fcp_bad_ndlp),
atomic_read(&lport->xmt_fcp_qdepth),
atomic_read(&lport->xmt_fcp_wqerr),
atomic_read(&lport->xmt_fcp_err));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp),
"FCP CMPL: xb %08x Err %08x\n",
atomic_read(&lport->cmpl_fcp_xb),
atomic_read(&lport->cmpl_fcp_err));
strlcat(buf, tmp, PAGE_SIZE);
/* host_lock is already unlocked. */
goto buffer_done;
unlock_buf_done:
spin_unlock_irq(shost->host_lock);
buffer_done:
len = strnlen(buf, PAGE_SIZE);
if (unlikely(len >= (PAGE_SIZE - 1))) {
lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
"6314 Catching potential buffer "
"overflow > PAGE_SIZE = %lu bytes\n",
PAGE_SIZE);
strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR),
LPFC_INFO_MORE_STR,
sizeof(LPFC_INFO_MORE_STR) + 1);
}
return len;
}
static ssize_t
lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = shost_priv(shost);
struct lpfc_hba *phba = vport->phba;
int len;
struct lpfc_fc4_ctrl_stat *cstat;
u64 data1, data2, data3;
u64 tot, totin, totout;
int i;
char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ||
(phba->sli_rev != LPFC_SLI_REV4))
return 0;
scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n");
totin = 0;
totout = 0;
for (i = 0; i < phba->cfg_hdw_queue; i++) {
cstat = &phba->sli4_hba.hdwq[i].scsi_cstat;
tot = cstat->io_cmpls;
totin += tot;
data1 = cstat->input_requests;
data2 = cstat->output_requests;
data3 = cstat->control_requests;
totout += (data1 + data2 + data3);
scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx "
"IO %016llx ", i, data1, data2, data3);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n",
tot, ((data1 + data2 + data3) - tot));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
goto buffer_done;
}
scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx "
"OutIO %016llx\n", totin, totout, totout - totin);
strlcat(buf, tmp, PAGE_SIZE);
buffer_done:
len = strnlen(buf, PAGE_SIZE);
return len;
}
static ssize_t
lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
if (phba->cfg_enable_bg) {
if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
return scnprintf(buf, PAGE_SIZE,
"BlockGuard Enabled\n");
else
return scnprintf(buf, PAGE_SIZE,
"BlockGuard Not Supported\n");
} else
return scnprintf(buf, PAGE_SIZE,
"BlockGuard Disabled\n");
}
static ssize_t
lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%llu\n",
(unsigned long long)phba->bg_guard_err_cnt);
}
static ssize_t
lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%llu\n",
(unsigned long long)phba->bg_apptag_err_cnt);
}
static ssize_t
lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%llu\n",
(unsigned long long)phba->bg_reftag_err_cnt);
}
/**
* lpfc_info_show - Return some pci info about the host in ascii
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the formatted text from lpfc_info().
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_info_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host));
}
/**
* lpfc_serialnum_show - Return the hba serial number in ascii
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the formatted text serial number.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber);
}
/**
* lpfc_temp_sensor_show - Return the temperature sensor level
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the formatted support level.
*
* Description:
* Returns a number indicating the temperature sensor level currently
* supported, zero or one in ascii.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support);
}
/**
* lpfc_modeldesc_show - Return the model description of the hba
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the scsi vpd model description.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc);
}
/**
* lpfc_modelname_show - Return the model name of the hba
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the scsi vpd model name.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName);
}
/**
* lpfc_programtype_show - Return the program type of the hba
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the scsi vpd program type.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType);
}
/**
* lpfc_vportnum_show - Return the port number in ascii of the hba
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains scsi vpd program type.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port);
}
/**
* lpfc_fwrev_show - Return the firmware rev running in the hba
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the scsi vpd program type.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
uint32_t if_type;
uint8_t sli_family;
char fwrev[FW_REV_STR_SIZE];
int len;
lpfc_decode_firmware_rev(phba, fwrev, 1);
if_type = phba->sli4_hba.pc_sli4_params.if_type;
sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
if (phba->sli_rev < LPFC_SLI_REV4)
len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
fwrev, phba->sli_rev);
else
len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
fwrev, phba->sli_rev, if_type, sli_family);
return len;
}
/**
* lpfc_hdw_show - Return the jedec information about the hba
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the scsi vpd program type.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
{
char hdw[9];
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
lpfc_vpd_t *vp = &phba->vpd;
lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw,
vp->rev.smRev, vp->rev.smFwRev);
}
/**
* lpfc_option_rom_version_show - Return the adapter ROM FCode version
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the ROM and FCode ascii strings.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
char fwrev[FW_REV_STR_SIZE];
if (phba->sli_rev < LPFC_SLI_REV4)
return scnprintf(buf, PAGE_SIZE, "%s\n",
phba->OptionROMVersion);
lpfc_decode_firmware_rev(phba, fwrev, 1);
return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev);
}
/**
* lpfc_link_state_show - Return the link state of the port
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains text describing the state of the link.
*
* Notes:
* The switch statement has no default so zero will be returned.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int len = 0;
switch (phba->link_state) {
case LPFC_LINK_UNKNOWN:
case LPFC_WARM_START:
case LPFC_INIT_START:
case LPFC_INIT_MBX_CMDS:
case LPFC_LINK_DOWN:
case LPFC_HBA_ERROR:
if (phba->hba_flag & LINK_DISABLED)
len += scnprintf(buf + len, PAGE_SIZE-len,
"Link Down - User disabled\n");
else
len += scnprintf(buf + len, PAGE_SIZE-len,
"Link Down\n");
break;
case LPFC_LINK_UP:
case LPFC_CLEAR_LA:
case LPFC_HBA_READY:
len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
switch (vport->port_state) {
case LPFC_LOCAL_CFG_LINK:
len += scnprintf(buf + len, PAGE_SIZE-len,
"Configuring Link\n");
break;
case LPFC_FDISC:
case LPFC_FLOGI:
case LPFC_FABRIC_CFG_LINK:
case LPFC_NS_REG:
case LPFC_NS_QRY:
case LPFC_BUILD_DISC_LIST:
case LPFC_DISC_AUTH:
len += scnprintf(buf + len, PAGE_SIZE - len,
"Discovery\n");
break;
case LPFC_VPORT_READY:
len += scnprintf(buf + len, PAGE_SIZE - len,
"Ready\n");
break;
case LPFC_VPORT_FAILED:
len += scnprintf(buf + len, PAGE_SIZE - len,
"Failed\n");
break;
case LPFC_VPORT_UNKNOWN:
len += scnprintf(buf + len, PAGE_SIZE - len,
"Unknown\n");
break;
}
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
if (vport->fc_flag & FC_PUBLIC_LOOP)
len += scnprintf(buf + len, PAGE_SIZE-len,
" Public Loop\n");
else
len += scnprintf(buf + len, PAGE_SIZE-len,
" Private Loop\n");
} else {
if (vport->fc_flag & FC_FABRIC) {
if (phba->sli_rev == LPFC_SLI_REV4 &&
vport->port_type == LPFC_PHYSICAL_PORT &&
phba->sli4_hba.fawwpn_flag &
LPFC_FAWWPN_FABRIC)
len += scnprintf(buf + len,
PAGE_SIZE - len,
" Fabric FA-PWWN\n");
else
len += scnprintf(buf + len,
PAGE_SIZE - len,
" Fabric\n");
} else {
len += scnprintf(buf + len, PAGE_SIZE-len,
" Point-2-Point\n");
}
}
}
if ((phba->sli_rev == LPFC_SLI_REV4) &&
((bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_6))) {
struct lpfc_trunk_link link = phba->trunk_link;
if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
len += scnprintf(buf + len, PAGE_SIZE - len,
"Trunk port 0: Link %s %s\n",
(link.link0.state == LPFC_LINK_UP) ?
"Up" : "Down. ",
trunk_errmsg[link.link0.fault]);
if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
len += scnprintf(buf + len, PAGE_SIZE - len,
"Trunk port 1: Link %s %s\n",
(link.link1.state == LPFC_LINK_UP) ?
"Up" : "Down. ",
trunk_errmsg[link.link1.fault]);
if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
len += scnprintf(buf + len, PAGE_SIZE - len,
"Trunk port 2: Link %s %s\n",
(link.link2.state == LPFC_LINK_UP) ?
"Up" : "Down. ",
trunk_errmsg[link.link2.fault]);
if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
len += scnprintf(buf + len, PAGE_SIZE - len,
"Trunk port 3: Link %s %s\n",
(link.link3.state == LPFC_LINK_UP) ?
"Up" : "Down. ",
trunk_errmsg[link.link3.fault]);
}
return len;
}
/**
* lpfc_sli4_protocol_show - Return the fip mode of the HBA
* @dev: class unused variable.
* @attr: device attribute, not used.
* @buf: on return contains the module description text.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
if (phba->sli_rev < LPFC_SLI_REV4)
return scnprintf(buf, PAGE_SIZE, "fc\n");
if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
return scnprintf(buf, PAGE_SIZE, "fcoe\n");
if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
return scnprintf(buf, PAGE_SIZE, "fc\n");
}
return scnprintf(buf, PAGE_SIZE, "unknown\n");
}
/**
* lpfc_oas_supported_show - Return whether or not Optimized Access Storage
* (OAS) is supported.
* @dev: class unused variable.
* @attr: device attribute, not used.
* @buf: on return contains the module description text.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%d\n",
phba->sli4_hba.pc_sli4_params.oas_supported);
}
/**
* lpfc_link_state_store - Transition the link_state on an HBA port
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: one or more lpfc_polling_flags values.
* @count: not used.
*
* Returns:
* -EINVAL if the buffer is not "up" or "down"
* return from link state change function if non-zero
* length of the buf on success
**/
static ssize_t
lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int status = -EINVAL;
if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
(phba->link_state == LPFC_LINK_DOWN))
status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
(phba->link_state >= LPFC_LINK_UP))
status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
if (status == 0)
return strlen(buf);
else
return status;
}
/**
* lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the sum of fc mapped and unmapped.
*
* Description:
* Returns the ascii text number of the sum of the fc mapped and unmapped
* vport counts.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_num_discovered_ports_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
return scnprintf(buf, PAGE_SIZE, "%d\n",
vport->fc_map_cnt + vport->fc_unmap_cnt);
}
/**
* lpfc_issue_lip - Misnomer, name carried over from long ago
* @shost: Scsi_Host pointer.
*
* Description:
* Bring the link down gracefully then re-init the link. The firmware will
* re-init the fiber channel interface as required. Does not issue a LIP.
*
* Returns:
* -EPERM port offline or management commands are being blocked
* -ENOMEM cannot allocate memory for the mailbox command
* -EIO error sending the mailbox command
* zero for success
**/
static int
lpfc_issue_lip(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *pmboxq;
int mbxstatus = MBXERR_ERROR;
/*
* If the link is offline, disabled or BLOCK_MGMT_IO
* it doesn't make any sense to allow issue_lip
*/
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
(phba->hba_flag & LINK_DISABLED) ||
(phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
return -EPERM;
pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
if (!pmboxq)
return -ENOMEM;
memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
pmboxq->u.mb.mbxOwner = OWN_HOST;
if ((vport->fc_flag & FC_PT2PT) && (vport->fc_flag & FC_PT2PT_NO_NVME))
vport->fc_flag &= ~FC_PT2PT_NO_NVME;
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
if ((mbxstatus == MBX_SUCCESS) &&
(pmboxq->u.mb.mbxStatus == 0 ||
pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
lpfc_init_link(phba, pmboxq, phba->cfg_topology,
phba->cfg_link_speed);
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
phba->fc_ratov * 2);
if ((mbxstatus == MBX_SUCCESS) &&
(pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
"2859 SLI authentication is required "
"for INIT_LINK but has not done yet\n");
}
lpfc_set_loopback_flag(phba);
if (mbxstatus != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
if (mbxstatus == MBXERR_ERROR)
return -EIO;
return 0;
}
int
lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock)
{
int cnt = 0;
spin_lock_irq(lock);
while (!list_empty(q)) {
spin_unlock_irq(lock);
msleep(20);
if (cnt++ > 250) { /* 5 secs */
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0466 Outstanding IO when "
"bringing Adapter offline\n");
return 0;
}
spin_lock_irq(lock);
}
spin_unlock_irq(lock);
return 1;
}
/**
* lpfc_do_offline - Issues a mailbox command to bring the link down
* @phba: lpfc_hba pointer.
* @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
*
* Notes:
* Assumes any error from lpfc_do_offline() will be negative.
* Can wait up to 5 seconds for the port ring buffers count
* to reach zero, prints a warning if it is not zero and continues.
* lpfc_workq_post_event() returns a non-zero return code if call fails.
*
* Returns:
* -EIO error posting the event
* zero for success
**/
static int
lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
{
struct completion online_compl;
struct lpfc_queue *qp = NULL;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
int status = 0;
int i;
int rc;
init_completion(&online_compl);
rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_OFFLINE_PREP);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
if (status != 0)
return -EIO;
psli = &phba->sli;
/*
* If freeing the queues have already started, don't access them.
* Otherwise set FREE_WAIT to indicate that queues are being used
* to hold the freeing process until we finish.
*/
spin_lock_irq(&phba->hbalock);
if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) {
psli->sli_flag |= LPFC_QUEUE_FREE_WAIT;
} else {
spin_unlock_irq(&phba->hbalock);
goto skip_wait;
}
spin_unlock_irq(&phba->hbalock);
/* Wait a little for things to settle down, but not
* long enough for dev loss timeout to expire.
*/
if (phba->sli_rev != LPFC_SLI_REV4) {
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
&phba->hbalock))
goto out;
}
} else {
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
pring = qp->pring;
if (!pring)
continue;
if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
&pring->ring_lock))
goto out;
}
}
out:
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT;
spin_unlock_irq(&phba->hbalock);
skip_wait:
init_completion(&online_compl);
rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
if (status != 0)
return -EIO;
return 0;
}
/**
* lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA
* @phba: lpfc_hba pointer.
*
* Description:
* Issues a PCI secondary bus reset for the phba->pcidev.
*
* Notes:
* First walks the bus_list to ensure only PCI devices with Emulex
* vendor id, device ids that support hot reset, only one occurrence
* of function 0, and all ports on the bus are in offline mode to ensure the
* hot reset only affects one valid HBA.
*
* Returns:
* -ENOTSUPP, cfg_enable_hba_reset must be of value 2
* -ENODEV, NULL ptr to pcidev
* -EBADSLT, detected invalid device
* -EBUSY, port is not in offline state
* 0, successful
*/
static int
lpfc_reset_pci_bus(struct lpfc_hba *phba)
{
struct pci_dev *pdev = phba->pcidev;
struct Scsi_Host *shost = NULL;
struct lpfc_hba *phba_other = NULL;
struct pci_dev *ptr = NULL;
int res;
if (phba->cfg_enable_hba_reset != 2)
return -ENOTSUPP;
if (!pdev) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n");
return -ENODEV;
}
res = lpfc_check_pci_resettable(phba);
if (res)
return res;
/* Walk the list of devices on the pci_dev's bus */
list_for_each_entry(ptr, &pdev->bus->devices, bus_list) {
/* Check port is offline */
shost = pci_get_drvdata(ptr);
if (shost) {
phba_other =
((struct lpfc_vport *)shost->hostdata)->phba;
if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) {
lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT,
"8349 WWPN = 0x%02x%02x%02x%02x"
"%02x%02x%02x%02x is not "
"offline!\n",
phba_other->wwpn[0],
phba_other->wwpn[1],
phba_other->wwpn[2],
phba_other->wwpn[3],
phba_other->wwpn[4],
phba_other->wwpn[5],
phba_other->wwpn[6],
phba_other->wwpn[7]);
return -EBUSY;
}
}
}
/* Issue PCI bus reset */
res = pci_reset_bus(pdev);
if (res) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"8350 PCI reset bus failed: %d\n", res);
}
return res;
}
/**
* lpfc_selective_reset - Offline then onlines the port
* @phba: lpfc_hba pointer.
*
* Description:
* If the port is configured to allow a reset then the hba is brought
* offline then online.
*
* Notes:
* Assumes any error from lpfc_do_offline() will be negative.
* Do not make this function static.
*
* Returns:
* lpfc_do_offline() return code if not zero
* -EIO reset not configured or error posting the event
* zero for success
**/
int
lpfc_selective_reset(struct lpfc_hba *phba)
{
struct completion online_compl;
int status = 0;
int rc;
if (!phba->cfg_enable_hba_reset)
return -EACCES;
if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) {
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
if (status != 0)
return status;
}
init_completion(&online_compl);
rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE);
if (rc == 0)
return -ENOMEM;
wait_for_completion(&online_compl);
if (status != 0)
return -EIO;
return 0;
}
/**
* lpfc_issue_reset - Selectively resets an adapter
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: containing the string "selective".
* @count: unused variable.
*
* Description:
* If the buf contains the string "selective" then lpfc_selective_reset()
* is called to perform the reset.
*
* Notes:
* Assumes any error from lpfc_selective_reset() will be negative.
* If lpfc_selective_reset() returns zero then the length of the buffer
* is returned which indicates success
*
* Returns:
* -EINVAL if the buffer does not contain the string "selective"
* length of buf if lpfc-selective_reset() if the call succeeds
* return value of lpfc_selective_reset() if the call fails
**/
static ssize_t
lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int status = -EINVAL;
if (!phba->cfg_enable_hba_reset)
return -EACCES;
if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
status = phba->lpfc_selective_reset(phba);
if (status == 0)
return strlen(buf);
else
return status;
}
/**
* lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
* @phba: lpfc_hba pointer.
*
* Description:
* SLI4 interface type-2 device to wait on the sliport status register for
* the readyness after performing a firmware reset.
*
* Returns:
* zero for success, -EPERM when port does not have privilege to perform the
* reset, -EIO when port timeout from recovering from the reset.
*
* Note:
* As the caller will interpret the return code by value, be careful in making
* change or addition to return codes.
**/
int
lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
{
struct lpfc_register portstat_reg = {0};
int i;
msleep(100);
if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
&portstat_reg.word0))
return -EIO;
/* verify if privileged for the request operation */
if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
!bf_get(lpfc_sliport_status_err, &portstat_reg))
return -EPERM;
/* There is no point to wait if the port is in an unrecoverable
* state.
*/
if (lpfc_sli4_unrecoverable_port(&portstat_reg))
return -EIO;
/* wait for the SLI port firmware ready after firmware reset */
for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
msleep(10);
if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
&portstat_reg.word0))
continue;
if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
continue;
if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
continue;
if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
continue;
break;
}
if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
return 0;
else
return -EIO;
}
/**
* lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
* @phba: lpfc_hba pointer.
* @opcode: The sli4 config command opcode.
*
* Description:
* Request SLI4 interface type-2 device to perform a physical register set
* access.
*
* Returns:
* zero for success
**/
static ssize_t
lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
{
struct completion online_compl;
struct pci_dev *pdev = phba->pcidev;
uint32_t before_fc_flag;
uint32_t sriov_nr_virtfn;
uint32_t reg_val;
int status = 0, rc = 0;
int job_posted = 1, sriov_err;
if (!phba->cfg_enable_hba_reset)
return -EACCES;
if ((phba->sli_rev < LPFC_SLI_REV4) ||
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2))
return -EPERM;
/* Keep state if we need to restore back */
before_fc_flag = phba->pport->fc_flag;
sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
if (opcode == LPFC_FW_DUMP) {
init_completion(&online_compl);
phba->fw_dump_cmpl = &online_compl;
} else {
/* Disable SR-IOV virtual functions if enabled */
if (phba->cfg_sriov_nr_virtfn) {
pci_disable_sriov(pdev);
phba->cfg_sriov_nr_virtfn = 0;
}
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
if (status != 0)
return status;
/* wait for the device to be quiesced before firmware reset */
msleep(100);
}
reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PDEV_CTL_OFFSET);
if (opcode == LPFC_FW_DUMP)
reg_val |= LPFC_FW_DUMP_REQUEST;
else if (opcode == LPFC_FW_RESET)
reg_val |= LPFC_CTL_PDEV_CTL_FRST;
else if (opcode == LPFC_DV_RESET)
reg_val |= LPFC_CTL_PDEV_CTL_DRST;
writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PDEV_CTL_OFFSET);
/* flush */
readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
/* delay driver action following IF_TYPE_2 reset */
rc = lpfc_sli4_pdev_status_reg_wait(phba);
if (rc == -EPERM) {
/* no privilege for reset */
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"3150 No privilege to perform the requested "
"access: x%x\n", reg_val);
} else if (rc == -EIO) {
/* reset failed, there is nothing more we can do */
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"3153 Fail to perform the requested "
"access: x%x\n", reg_val);
if (phba->fw_dump_cmpl)
phba->fw_dump_cmpl = NULL;
return rc;
}
/* keep the original port state */
if (before_fc_flag & FC_OFFLINE_MODE) {
if (phba->fw_dump_cmpl)
phba->fw_dump_cmpl = NULL;
goto out;
}
/* Firmware dump will trigger an HA_ERATT event, and
* lpfc_handle_eratt_s4 routine already handles bringing the port back
* online.
*/
if (opcode == LPFC_FW_DUMP) {
wait_for_completion(phba->fw_dump_cmpl);
} else {
init_completion(&online_compl);
job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE);
if (!job_posted)
goto out;
wait_for_completion(&online_compl);
}
out:
/* in any case, restore the virtual functions enabled as before */
if (sriov_nr_virtfn) {
/* If fw_dump was performed, first disable to clean up */
if (opcode == LPFC_FW_DUMP) {
pci_disable_sriov(pdev);
phba->cfg_sriov_nr_virtfn = 0;
}
sriov_err =
lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
if (!sriov_err)
phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
}
/* return proper error code */
if (!rc) {
if (!job_posted)
rc = -ENOMEM;
else if (status)
rc = -EIO;
}
return rc;
}
/**
* lpfc_nport_evt_cnt_show - Return the number of nport events
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the ascii number of nport events.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
}
static int
lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out)
{
LPFC_MBOXQ_t *mbox = NULL;
unsigned long val = 0;
char *pval = NULL;
int rc = 0;
if (!strncmp("enable", buff_out,
strlen("enable"))) {
pval = buff_out + strlen("enable") + 1;
rc = kstrtoul(pval, 0, &val);
if (rc)
return rc; /* Invalid number */
} else if (!strncmp("disable", buff_out,
strlen("disable"))) {
val = 0;
} else {
return -EINVAL; /* Invalid command */
}
switch (val) {
case 0:
val = 0x0; /* Disable */
break;
case 2:
val = 0x1; /* Enable two port trunk */
break;
case 4:
val = 0x2; /* Enable four port trunk */
break;
default:
return -EINVAL;
}
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"0070 Set trunk mode with val %ld ", val);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE,
12, LPFC_SLI4_MBX_EMBED);
bf_set(lpfc_mbx_set_trunk_mode,
&mbox->u.mqe.un.set_trunk_mode,
val);
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
if (rc)
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"0071 Set trunk mode failed with status: %d",
rc);
mempool_free(mbox, phba->mbox_mem_pool);
return 0;
}
static ssize_t
lpfc_xcvr_data_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int rc;
int len = 0;
struct lpfc_rdp_context *rdp_context;
u16 temperature;
u16 rx_power;
u16 tx_bias;
u16 tx_power;
u16 vcc;
char chbuf[128];
u16 wavelength = 0;
struct sff_trasnceiver_codes_byte7 *trasn_code_byte7;
/* Get transceiver information */
rdp_context = kmalloc(sizeof(*rdp_context), GFP_KERNEL);
rc = lpfc_get_sfp_info_wait(phba, rdp_context);
if (rc) {
len = scnprintf(buf, PAGE_SIZE - len, "SFP info NA:\n");
goto out_free_rdp;
}
strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_NAME], 16);
len = scnprintf(buf, PAGE_SIZE - len, "VendorName:\t%s\n", chbuf);
len += scnprintf(buf + len, PAGE_SIZE - len,
"VendorOUI:\t%02x-%02x-%02x\n",
(uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI],
(uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 1],
(uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 2]);
strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_PN], 16);
len += scnprintf(buf + len, PAGE_SIZE - len, "VendorPN:\t%s\n", chbuf);
strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_SN], 16);
len += scnprintf(buf + len, PAGE_SIZE - len, "VendorSN:\t%s\n", chbuf);
strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_REV], 4);
len += scnprintf(buf + len, PAGE_SIZE - len, "VendorRev:\t%s\n", chbuf);
strscpy(chbuf, &rdp_context->page_a0[SSF_DATE_CODE], 8);
len += scnprintf(buf + len, PAGE_SIZE - len, "DateCode:\t%s\n", chbuf);
len += scnprintf(buf + len, PAGE_SIZE - len, "Identifier:\t%xh\n",
(uint8_t)rdp_context->page_a0[SSF_IDENTIFIER]);
len += scnprintf(buf + len, PAGE_SIZE - len, "ExtIdentifier:\t%xh\n",
(uint8_t)rdp_context->page_a0[SSF_EXT_IDENTIFIER]);
len += scnprintf(buf + len, PAGE_SIZE - len, "Connector:\t%xh\n",
(uint8_t)rdp_context->page_a0[SSF_CONNECTOR]);
wavelength = (rdp_context->page_a0[SSF_WAVELENGTH_B1] << 8) |
rdp_context->page_a0[SSF_WAVELENGTH_B0];
len += scnprintf(buf + len, PAGE_SIZE - len, "Wavelength:\t%d nm\n",
wavelength);
trasn_code_byte7 = (struct sff_trasnceiver_codes_byte7 *)
&rdp_context->page_a0[SSF_TRANSCEIVER_CODE_B7];
len += scnprintf(buf + len, PAGE_SIZE - len, "Speeds: \t");
if (*(uint8_t *)trasn_code_byte7 == 0) {
len += scnprintf(buf + len, PAGE_SIZE - len, "Unknown\n");
} else {
if (trasn_code_byte7->fc_sp_100MB)
len += scnprintf(buf + len, PAGE_SIZE - len, "1 ");
if (trasn_code_byte7->fc_sp_200mb)
len += scnprintf(buf + len, PAGE_SIZE - len, "2 ");
if (trasn_code_byte7->fc_sp_400MB)
len += scnprintf(buf + len, PAGE_SIZE - len, "4 ");
if (trasn_code_byte7->fc_sp_800MB)
len += scnprintf(buf + len, PAGE_SIZE - len, "8 ");
if (trasn_code_byte7->fc_sp_1600MB)
len += scnprintf(buf + len, PAGE_SIZE - len, "16 ");
if (trasn_code_byte7->fc_sp_3200MB)
len += scnprintf(buf + len, PAGE_SIZE - len, "32 ");
if (trasn_code_byte7->speed_chk_ecc)
len += scnprintf(buf + len, PAGE_SIZE - len, "64 ");
len += scnprintf(buf + len, PAGE_SIZE - len, "GB\n");
}
temperature = (rdp_context->page_a2[SFF_TEMPERATURE_B1] << 8 |
rdp_context->page_a2[SFF_TEMPERATURE_B0]);
vcc = (rdp_context->page_a2[SFF_VCC_B1] << 8 |
rdp_context->page_a2[SFF_VCC_B0]);
tx_power = (rdp_context->page_a2[SFF_TXPOWER_B1] << 8 |
rdp_context->page_a2[SFF_TXPOWER_B0]);
tx_bias = (rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B0]);
rx_power = (rdp_context->page_a2[SFF_RXPOWER_B1] << 8 |
rdp_context->page_a2[SFF_RXPOWER_B0]);
len += scnprintf(buf + len, PAGE_SIZE - len,
"Temperature:\tx%04x C\n", temperature);
len += scnprintf(buf + len, PAGE_SIZE - len, "Vcc:\t\tx%04x V\n", vcc);
len += scnprintf(buf + len, PAGE_SIZE - len,
"TxBiasCurrent:\tx%04x mA\n", tx_bias);
len += scnprintf(buf + len, PAGE_SIZE - len, "TxPower:\tx%04x mW\n",
tx_power);
len += scnprintf(buf + len, PAGE_SIZE - len, "RxPower:\tx%04x mW\n",
rx_power);
out_free_rdp:
kfree(rdp_context);
return len;
}
/**
* lpfc_board_mode_show - Return the state of the board
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the state of the adapter.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
char * state;
if (phba->link_state == LPFC_HBA_ERROR)
state = "error";
else if (phba->link_state == LPFC_WARM_START)
state = "warm start";
else if (phba->link_state == LPFC_INIT_START)
state = "offline";
else
state = "online";
return scnprintf(buf, PAGE_SIZE, "%s\n", state);
}
/**
* lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: containing one of the strings "online", "offline", "warm" or "error".
* @count: unused variable.
*
* Returns:
* -EACCES if enable hba reset not enabled
* -EINVAL if the buffer does not contain a valid string (see above)
* -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
* buf length greater than zero indicates success
**/
static ssize_t
lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct completion online_compl;
char *board_mode_str = NULL;
int status = 0;
int rc;
if (!phba->cfg_enable_hba_reset) {
status = -EACCES;
goto board_mode_out;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"3050 lpfc_board_mode set to %s\n", buf);
init_completion(&online_compl);
if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE);
if (rc == 0) {
status = -ENOMEM;
goto board_mode_out;
}
wait_for_completion(&online_compl);
if (status)
status = -EIO;
} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
if (phba->sli_rev == LPFC_SLI_REV4)
status = -EINVAL;
else
status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
if (phba->sli_rev == LPFC_SLI_REV4)
status = -EINVAL;
else
status = lpfc_do_offline(phba, LPFC_EVT_KILL);
else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1)
== 0)
status = lpfc_reset_pci_bus(phba);
else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0)
lpfc_issue_hb_tmo(phba);
else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0)
status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk"));
else
status = -EINVAL;
board_mode_out:
if (!status)
return strlen(buf);
else {
board_mode_str = strchr(buf, '\n');
if (board_mode_str)
*board_mode_str = '\0';
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"3097 Failed \"%s\", status(%d), "
"fc_flag(x%x)\n",
buf, status, phba->pport->fc_flag);
return status;
}
}
/**
* lpfc_get_hba_info - Return various bits of informaton about the adapter
* @phba: pointer to the adapter structure.
* @mxri: max xri count.
* @axri: available xri count.
* @mrpi: max rpi count.
* @arpi: available rpi count.
* @mvpi: max vpi count.
* @avpi: available vpi count.
*
* Description:
* If an integer pointer for an count is not null then the value for the
* count is returned.
*
* Returns:
* zero on error
* one for success
**/
static int
lpfc_get_hba_info(struct lpfc_hba *phba,
uint32_t *mxri, uint32_t *axri,
uint32_t *mrpi, uint32_t *arpi,
uint32_t *mvpi, uint32_t *avpi)
{
LPFC_MBOXQ_t *pmboxq;
MAILBOX_t *pmb;
int rc = 0;
struct lpfc_sli4_hba *sli4_hba;
struct lpfc_max_cfg_param *max_cfg_param;
u16 rsrc_ext_cnt, rsrc_ext_size, max_vpi;
/*
* prevent udev from issuing mailbox commands until the port is
* configured.
*/
if (phba->link_state < LPFC_LINK_DOWN ||
!phba->mbox_mem_pool ||
(phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
return 0;
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
return 0;
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq)
return 0;
memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
pmb = &pmboxq->u.mb;
pmb->mbxCommand = MBX_READ_CONFIG;
pmb->mbxOwner = OWN_HOST;
pmboxq->ctx_buf = NULL;
if (phba->pport->fc_flag & FC_OFFLINE_MODE)
rc = MBX_NOT_FINISHED;
else
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
if (rc != MBX_SUCCESS) {
if (rc != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
return 0;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
sli4_hba = &phba->sli4_hba;
max_cfg_param = &sli4_hba->max_cfg_param;
/* Normally, extents are not used */
if (!phba->sli4_hba.extents_in_use) {
if (mrpi)
*mrpi = max_cfg_param->max_rpi;
if (mxri)
*mxri = max_cfg_param->max_xri;
if (mvpi) {
max_vpi = max_cfg_param->max_vpi;
/* Limit the max we support */
if (max_vpi > LPFC_MAX_VPI)
max_vpi = LPFC_MAX_VPI;
*mvpi = max_vpi;
}
} else { /* Extents in use */
if (mrpi) {
if (lpfc_sli4_get_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_RPI,
&rsrc_ext_cnt,
&rsrc_ext_size)) {
rc = 0;
goto free_pmboxq;
}
*mrpi = rsrc_ext_cnt * rsrc_ext_size;
}
if (mxri) {
if (lpfc_sli4_get_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_XRI,
&rsrc_ext_cnt,
&rsrc_ext_size)) {
rc = 0;
goto free_pmboxq;
}
*mxri = rsrc_ext_cnt * rsrc_ext_size;
}
if (mvpi) {
if (lpfc_sli4_get_avail_extnt_rsrc(phba,
LPFC_RSC_TYPE_FCOE_VPI,
&rsrc_ext_cnt,
&rsrc_ext_size)) {
rc = 0;
goto free_pmboxq;
}
max_vpi = rsrc_ext_cnt * rsrc_ext_size;
/* Limit the max we support */
if (max_vpi > LPFC_MAX_VPI)
max_vpi = LPFC_MAX_VPI;
*mvpi = max_vpi;
}
}
} else {
if (mrpi)
*mrpi = pmb->un.varRdConfig.max_rpi;
if (arpi)
*arpi = pmb->un.varRdConfig.avail_rpi;
if (mxri)
*mxri = pmb->un.varRdConfig.max_xri;
if (axri)
*axri = pmb->un.varRdConfig.avail_xri;
if (mvpi)
*mvpi = pmb->un.varRdConfig.max_vpi;
if (avpi) {
/* avail_vpi is only valid if link is up and ready */
if (phba->link_state == LPFC_HBA_READY)
*avpi = pmb->un.varRdConfig.avail_vpi;
else
*avpi = pmb->un.varRdConfig.max_vpi;
}
}
/* Success */
rc = 1;
free_pmboxq:
mempool_free(pmboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_max_rpi_show - Return maximum rpi
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the maximum rpi count in decimal or "Unknown".
*
* Description:
* Calls lpfc_get_hba_info() asking for just the mrpi count.
* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
* to "Unknown" and the buffer length is returned, therefore the caller
* must check for "Unknown" in the buffer to detect a failure.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
uint32_t cnt;
if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
return scnprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_used_rpi_show - Return maximum rpi minus available rpi
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: containing the used rpi count in decimal or "Unknown".
*
* Description:
* Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
* to "Unknown" and the buffer length is returned, therefore the caller
* must check for "Unknown" in the buffer to detect a failure.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli4_hba *sli4_hba;
struct lpfc_max_cfg_param *max_cfg_param;
u32 cnt = 0, acnt = 0;
if (phba->sli_rev == LPFC_SLI_REV4) {
sli4_hba = &phba->sli4_hba;
max_cfg_param = &sli4_hba->max_cfg_param;
return scnprintf(buf, PAGE_SIZE, "%d\n",
max_cfg_param->rpi_used);
} else {
if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
}
return scnprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_max_xri_show - Return maximum xri
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the maximum xri count in decimal or "Unknown".
*
* Description:
* Calls lpfc_get_hba_info() asking for just the mrpi count.
* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
* to "Unknown" and the buffer length is returned, therefore the caller
* must check for "Unknown" in the buffer to detect a failure.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
uint32_t cnt;
if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
return scnprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_used_xri_show - Return maximum xpi minus the available xpi
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the used xri count in decimal or "Unknown".
*
* Description:
* Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
* to "Unknown" and the buffer length is returned, therefore the caller
* must check for "Unknown" in the buffer to detect a failure.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli4_hba *sli4_hba;
struct lpfc_max_cfg_param *max_cfg_param;
u32 cnt = 0, acnt = 0;
if (phba->sli_rev == LPFC_SLI_REV4) {
sli4_hba = &phba->sli4_hba;
max_cfg_param = &sli4_hba->max_cfg_param;
return scnprintf(buf, PAGE_SIZE, "%d\n",
max_cfg_param->xri_used);
} else {
if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
}
return scnprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_max_vpi_show - Return maximum vpi
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the maximum vpi count in decimal or "Unknown".
*
* Description:
* Calls lpfc_get_hba_info() asking for just the mvpi count.
* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
* to "Unknown" and the buffer length is returned, therefore the caller
* must check for "Unknown" in the buffer to detect a failure.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
uint32_t cnt;
if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
return scnprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_used_vpi_show - Return maximum vpi minus the available vpi
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the used vpi count in decimal or "Unknown".
*
* Description:
* Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
* to "Unknown" and the buffer length is returned, therefore the caller
* must check for "Unknown" in the buffer to detect a failure.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli4_hba *sli4_hba;
struct lpfc_max_cfg_param *max_cfg_param;
u32 cnt = 0, acnt = 0;
if (phba->sli_rev == LPFC_SLI_REV4) {
sli4_hba = &phba->sli4_hba;
max_cfg_param = &sli4_hba->max_cfg_param;
return scnprintf(buf, PAGE_SIZE, "%d\n",
max_cfg_param->vpi_used);
} else {
if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
}
return scnprintf(buf, PAGE_SIZE, "Unknown\n");
}
/**
* lpfc_npiv_info_show - Return text about NPIV support for the adapter
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: text that must be interpreted to determine if npiv is supported.
*
* Description:
* Buffer will contain text indicating npiv is not suppoerted on the port,
* the port is an NPIV physical port, or it is an npiv virtual port with
* the id of the vport.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
if (!(phba->max_vpi))
return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
if (vport->port_type == LPFC_PHYSICAL_PORT)
return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n");
return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
}
/**
* lpfc_poll_show - Return text about poll support for the adapter
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the cfg_poll in hex.
*
* Notes:
* cfg_poll should be a lpfc_polling_flags type.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_poll_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
}
/**
* lpfc_poll_store - Set the value of cfg_poll for the adapter
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: one or more lpfc_polling_flags values.
* @count: not used.
*
* Notes:
* buf contents converted to integer and checked for a valid value.
*
* Returns:
* -EINVAL if the buffer connot be converted or is out of range
* length of the buf on success
**/
static ssize_t
lpfc_poll_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
uint32_t creg_val;
uint32_t old_val;
int val=0;
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "%i", &val) != 1)
return -EINVAL;
if ((val & 0x3) != val)
return -EINVAL;
if (phba->sli_rev == LPFC_SLI_REV4)
val = 0;
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"3051 lpfc_poll changed from %d to %d\n",
phba->cfg_poll, val);
spin_lock_irq(&phba->hbalock);
old_val = phba->cfg_poll;
if (val & ENABLE_FCP_RING_POLLING) {
if ((val & DISABLE_FCP_RING_INT) &&
!(old_val & DISABLE_FCP_RING_INT)) {
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
spin_unlock_irq(&phba->hbalock);
return -EINVAL;
}
creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
lpfc_poll_start_timer(phba);
}
} else if (val != 0x0) {
spin_unlock_irq(&phba->hbalock);
return -EINVAL;
}
if (!(val & DISABLE_FCP_RING_INT) &&
(old_val & DISABLE_FCP_RING_INT))
{
spin_unlock_irq(&phba->hbalock);
del_timer(&phba->fcp_poll_timer);
spin_lock_irq(&phba->hbalock);
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
spin_unlock_irq(&phba->hbalock);
return -EINVAL;
}
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
phba->cfg_poll = val;
spin_unlock_irq(&phba->hbalock);
return strlen(buf);
}
/**
* lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the formatted support level.
*
* Description:
* Returns the maximum number of virtual functions a physical function can
* support, 0 will be returned if called on virtual function.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_sriov_hw_max_virtfn_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
uint16_t max_nr_virtfn;
max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
}
/**
* lpfc_enable_bbcr_set: Sets an attribute value.
* @phba: pointer to the adapter structure.
* @val: integer attribute value.
*
* Description:
* Validates the min and max values then sets the
* adapter config field if in the valid range. prints error message
* and does not set the parameter if invalid.
*
* Returns:
* zero on success
* -EINVAL if val is invalid
*/
static ssize_t
lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val)
{
if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3068 lpfc_enable_bbcr changed from %d to "
"%d\n", phba->cfg_enable_bbcr, val);
phba->cfg_enable_bbcr = val;
return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0451 lpfc_enable_bbcr cannot set to %d, range is 0, "
"1\n", val);
return -EINVAL;
}
/*
* lpfc_param_show - Return a cfg attribute value in decimal
*
* Description:
* Macro that given an attr e.g. hba_queue_depth expands
* into a function with the name lpfc_hba_queue_depth_show.
*
* lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the attribute value in decimal.
*
* Returns: size of formatted string.
**/
#define lpfc_param_show(attr) \
static ssize_t \
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
struct lpfc_hba *phba = vport->phba;\
return scnprintf(buf, PAGE_SIZE, "%d\n",\
phba->cfg_##attr);\
}
/*
* lpfc_param_hex_show - Return a cfg attribute value in hex
*
* Description:
* Macro that given an attr e.g. hba_queue_depth expands
* into a function with the name lpfc_hba_queue_depth_show
*
* lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the attribute value in hexadecimal.
*
* Returns: size of formatted string.
**/
#define lpfc_param_hex_show(attr) \
static ssize_t \
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
struct lpfc_hba *phba = vport->phba;\
uint val = 0;\
val = phba->cfg_##attr;\
return scnprintf(buf, PAGE_SIZE, "%#x\n",\
phba->cfg_##attr);\
}
/*
* lpfc_param_init - Initializes a cfg attribute
*
* Description:
* Macro that given an attr e.g. hba_queue_depth expands
* into a function with the name lpfc_hba_queue_depth_init. The macro also
* takes a default argument, a minimum and maximum argument.
*
* lpfc_##attr##_init: Initializes an attribute.
* @phba: pointer to the adapter structure.
* @val: integer attribute value.
*
* Validates the min and max values then sets the adapter config field
* accordingly, or uses the default if out of range and prints an error message.
*
* Returns:
* zero on success
* -EINVAL if default used
**/
#define lpfc_param_init(attr, default, minval, maxval) \
static int \
lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
{ \
if (lpfc_rangecheck(val, minval, maxval)) {\
phba->cfg_##attr = val;\
return 0;\
}\
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
"0449 lpfc_"#attr" attribute cannot be set to %d, "\
"allowed range is ["#minval", "#maxval"]\n", val); \
phba->cfg_##attr = default;\
return -EINVAL;\
}
/*
* lpfc_param_set - Set a cfg attribute value
*
* Description:
* Macro that given an attr e.g. hba_queue_depth expands
* into a function with the name lpfc_hba_queue_depth_set
*
* lpfc_##attr##_set: Sets an attribute value.
* @phba: pointer to the adapter structure.
* @val: integer attribute value.
*
* Description:
* Validates the min and max values then sets the
* adapter config field if in the valid range. prints error message
* and does not set the parameter if invalid.
*
* Returns:
* zero on success
* -EINVAL if val is invalid
**/
#define lpfc_param_set(attr, default, minval, maxval) \
static int \
lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
{ \
if (lpfc_rangecheck(val, minval, maxval)) {\
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
"3052 lpfc_" #attr " changed from %d to %d\n", \
phba->cfg_##attr, val); \
phba->cfg_##attr = val;\
return 0;\
}\
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
"0450 lpfc_"#attr" attribute cannot be set to %d, "\
"allowed range is ["#minval", "#maxval"]\n", val); \
return -EINVAL;\
}
/*
* lpfc_param_store - Set a vport attribute value
*
* Description:
* Macro that given an attr e.g. hba_queue_depth expands
* into a function with the name lpfc_hba_queue_depth_store.
*
* lpfc_##attr##_store: Set an sttribute value.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: contains the attribute value in ascii.
* @count: not used.
*
* Description:
* Convert the ascii text number to an integer, then
* use the lpfc_##attr##_set function to set the value.
*
* Returns:
* -EINVAL if val is invalid or lpfc_##attr##_set() fails
* length of buffer upon success.
**/
#define lpfc_param_store(attr) \
static ssize_t \
lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
struct lpfc_hba *phba = vport->phba;\
uint val = 0;\
if (!isdigit(buf[0]))\
return -EINVAL;\
if (sscanf(buf, "%i", &val) != 1)\
return -EINVAL;\
if (lpfc_##attr##_set(phba, val) == 0) \
return strlen(buf);\
else \
return -EINVAL;\
}
/*
* lpfc_vport_param_show - Return decimal formatted cfg attribute value
*
* Description:
* Macro that given an attr e.g. hba_queue_depth expands
* into a function with the name lpfc_hba_queue_depth_show
*
* lpfc_##attr##_show: prints the attribute value in decimal.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the attribute value in decimal.
*
* Returns: length of formatted string.
**/
#define lpfc_vport_param_show(attr) \
static ssize_t \
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
}
/*
* lpfc_vport_param_hex_show - Return hex formatted attribute value
*
* Description:
* Macro that given an attr e.g.
* hba_queue_depth expands into a function with the name
* lpfc_hba_queue_depth_show
*
* lpfc_##attr##_show: prints the attribute value in hexadecimal.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: on return contains the attribute value in hexadecimal.
*
* Returns: length of formatted string.
**/
#define lpfc_vport_param_hex_show(attr) \
static ssize_t \
lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
}
/*
* lpfc_vport_param_init - Initialize a vport cfg attribute
*
* Description:
* Macro that given an attr e.g. hba_queue_depth expands
* into a function with the name lpfc_hba_queue_depth_init. The macro also
* takes a default argument, a minimum and maximum argument.
*
* lpfc_##attr##_init: validates the min and max values then sets the
* adapter config field accordingly, or uses the default if out of range
* and prints an error message.
* @phba: pointer to the adapter structure.
* @val: integer attribute value.
*
* Returns:
* zero on success
* -EINVAL if default used
**/
#define lpfc_vport_param_init(attr, default, minval, maxval) \
static int \
lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
{ \
if (lpfc_rangecheck(val, minval, maxval)) {\
vport->cfg_##attr = val;\
return 0;\
}\
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
"0423 lpfc_"#attr" attribute cannot be set to %d, "\
"allowed range is ["#minval", "#maxval"]\n", val); \
vport->cfg_##attr = default;\
return -EINVAL;\
}
/*
* lpfc_vport_param_set - Set a vport cfg attribute
*
* Description:
* Macro that given an attr e.g. hba_queue_depth expands
* into a function with the name lpfc_hba_queue_depth_set
*
* lpfc_##attr##_set: validates the min and max values then sets the
* adapter config field if in the valid range. prints error message
* and does not set the parameter if invalid.
* @phba: pointer to the adapter structure.
* @val: integer attribute value.
*
* Returns:
* zero on success
* -EINVAL if val is invalid
**/
#define lpfc_vport_param_set(attr, default, minval, maxval) \
static int \
lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
{ \
if (lpfc_rangecheck(val, minval, maxval)) {\
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
"3053 lpfc_" #attr \
" changed from %d (x%x) to %d (x%x)\n", \
vport->cfg_##attr, vport->cfg_##attr, \
val, val); \
vport->cfg_##attr = val;\
return 0;\
}\
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
"0424 lpfc_"#attr" attribute cannot be set to %d, "\
"allowed range is ["#minval", "#maxval"]\n", val); \
return -EINVAL;\
}
/*
* lpfc_vport_param_store - Set a vport attribute
*
* Description:
* Macro that given an attr e.g. hba_queue_depth
* expands into a function with the name lpfc_hba_queue_depth_store
*
* lpfc_##attr##_store: convert the ascii text number to an integer, then
* use the lpfc_##attr##_set function to set the value.
* @cdev: class device that is converted into a Scsi_host.
* @buf: contains the attribute value in decimal.
* @count: not used.
*
* Returns:
* -EINVAL if val is invalid or lpfc_##attr##_set() fails
* length of buffer upon success.
**/
#define lpfc_vport_param_store(attr) \
static ssize_t \
lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
uint val = 0;\
if (!isdigit(buf[0]))\
return -EINVAL;\
if (sscanf(buf, "%i", &val) != 1)\
return -EINVAL;\
if (lpfc_##attr##_set(vport, val) == 0) \
return strlen(buf);\
else \
return -EINVAL;\
}
static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL);
static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL);
static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
lpfc_link_state_store);
static DEVICE_ATTR(option_rom_version, S_IRUGO,
lpfc_option_rom_version_show, NULL);
static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
lpfc_num_discovered_ports_show, NULL);
static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
static DEVICE_ATTR_RO(lpfc_drvr_version);
static DEVICE_ATTR_RO(lpfc_enable_fip);
static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
lpfc_board_mode_show, lpfc_board_mode_store);
static DEVICE_ATTR_RO(lpfc_xcvr_data);
static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
static DEVICE_ATTR_RO(lpfc_temp_sensor);
static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn);
static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
NULL);
static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL);
#define WWN_SZ 8
/**
* lpfc_wwn_set - Convert string to the 8 byte WWN value.
* @buf: WWN string.
* @cnt: Length of string.
* @wwn: Array to receive converted wwn value.
*
* Returns:
* -EINVAL if the buffer does not contain a valid wwn
* 0 success
**/
static size_t
lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
{
unsigned int i, j;
/* Count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
return -EINVAL;
memset(wwn, 0, WWN_SZ);
/* Validate and store the new name */
for (i = 0, j = 0; i < 16; i++) {
if ((*buf >= 'a') && (*buf <= 'f'))
j = ((j << 4) | ((*buf++ - 'a') + 10));
else if ((*buf >= 'A') && (*buf <= 'F'))
j = ((j << 4) | ((*buf++ - 'A') + 10));
else if ((*buf >= '0') && (*buf <= '9'))
j = ((j << 4) | (*buf++ - '0'));
else
return -EINVAL;
if (i % 2) {
wwn[i/2] = j & 0xff;
j = 0;
}
}
return 0;
}
/**
* lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
* Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* value of count
**/
static ssize_t
lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
wwn_to_u64(phba->cfg_oas_tgt_wwpn));
}
/**
* lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
* Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
* @count: Size of the data buffer.
*
* Returns:
* -EINVAL count is invalid, invalid wwpn byte invalid
* -EPERM oas is not supported by hba
* value of count on success
**/
static ssize_t
lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
unsigned int cnt = count;
uint8_t wwpn[WWN_SZ];
int rc;
if (!phba->cfg_fof)
return -EPERM;
/* count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
rc = lpfc_wwn_set(buf, cnt, wwpn);
if (rc)
return rc;
memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
if (wwn_to_u64(wwpn) == 0)
phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
else
phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
phba->cfg_oas_flags &= ~OAS_LUN_VALID;
phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
return count;
}
static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
lpfc_oas_tgt_show, lpfc_oas_tgt_store);
/**
* lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for
* Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* value of count
**/
static ssize_t
lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority);
}
/**
* lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for
* Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
* @count: Size of the data buffer.
*
* Returns:
* -EINVAL count is invalid, invalid wwpn byte invalid
* -EPERM oas is not supported by hba
* value of count on success
**/
static ssize_t
lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
unsigned int cnt = count;
unsigned long val;
int ret;
if (!phba->cfg_fof)
return -EPERM;
/* count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
ret = kstrtoul(buf, 0, &val);
if (ret || (val > 0x7f))
return -EINVAL;
if (val)
phba->cfg_oas_priority = (uint8_t)val;
else
phba->cfg_oas_priority = phba->cfg_XLanePriority;
return count;
}
static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR,
lpfc_oas_priority_show, lpfc_oas_priority_store);
/**
* lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
* for Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* value of count on success
**/
static ssize_t
lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
wwn_to_u64(phba->cfg_oas_vpt_wwpn));
}
/**
* lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
* for Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
* @count: Size of the data buffer.
*
* Returns:
* -EINVAL count is invalid, invalid wwpn byte invalid
* -EPERM oas is not supported by hba
* value of count on success
**/
static ssize_t
lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
unsigned int cnt = count;
uint8_t wwpn[WWN_SZ];
int rc;
if (!phba->cfg_fof)
return -EPERM;
/* count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
rc = lpfc_wwn_set(buf, cnt, wwpn);
if (rc)
return rc;
memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
if (wwn_to_u64(wwpn) == 0)
phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
else
phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
phba->cfg_oas_flags &= ~OAS_LUN_VALID;
if (phba->cfg_oas_priority == 0)
phba->cfg_oas_priority = phba->cfg_XLanePriority;
phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
return count;
}
static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
lpfc_oas_vpt_show, lpfc_oas_vpt_store);
/**
* lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
* of whether luns will be enabled or disabled
* for Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* size of formatted string.
**/
static ssize_t
lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
}
/**
* lpfc_oas_lun_state_store - Store the state (enabled or disabled)
* of whether luns will be enabled or disabled
* for Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
* @count: Size of the data buffer.
*
* Returns:
* -EINVAL count is invalid, invalid wwpn byte invalid
* -EPERM oas is not supported by hba
* value of count on success
**/
static ssize_t
lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
int val = 0;
if (!phba->cfg_fof)
return -EPERM;
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "%i", &val) != 1)
return -EINVAL;
if ((val != 0) && (val != 1))
return -EINVAL;
phba->cfg_oas_lun_state = val;
return strlen(buf);
}
static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
/**
* lpfc_oas_lun_status_show - Return the status of the Optimized Access
* Storage (OAS) lun returned by the
* lpfc_oas_lun_show function.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* size of formatted string.
**/
static ssize_t
lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
return -EFAULT;
return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
}
static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
lpfc_oas_lun_status_show, NULL);
/**
* lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
* (OAS) operations.
* @phba: lpfc_hba pointer.
* @vpt_wwpn: wwpn of the vport associated with the returned lun
* @tgt_wwpn: wwpn of the target associated with the returned lun
* @lun: the fc lun for setting oas state.
* @oas_state: the oas state to be set to the lun.
* @pri: priority
*
* Returns:
* SUCCESS : 0
* -EPERM OAS is not enabled or not supported by this port.
*
*/
static size_t
lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint64_t lun,
uint32_t oas_state, uint8_t pri)
{
int rc = 0;
if (!phba->cfg_fof)
return -EPERM;
if (oas_state) {
if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
(struct lpfc_name *)tgt_wwpn,
lun, pri))
rc = -ENOMEM;
} else {
lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
(struct lpfc_name *)tgt_wwpn, lun, pri);
}
return rc;
}
/**
* lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
* Access Storage (OAS) operations.
* @phba: lpfc_hba pointer.
* @vpt_wwpn: wwpn of the vport associated with the returned lun
* @tgt_wwpn: wwpn of the target associated with the returned lun
* @lun_status: status of the lun returned lun
* @lun_pri: priority of the lun returned lun
*
* Returns the first or next lun enabled for OAS operations for the vport/target
* specified. If a lun is found, its vport wwpn, target wwpn and status is
* returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
*
* Return:
* lun that is OAS enabled for the vport/target
* NOT_OAS_ENABLED_LUN when no oas enabled lun found.
*/
static uint64_t
lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint32_t *lun_status,
uint32_t *lun_pri)
{
uint64_t found_lun;
if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
return NOT_OAS_ENABLED_LUN;
if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
phba->sli4_hba.oas_next_vpt_wwpn,
(struct lpfc_name *)
phba->sli4_hba.oas_next_tgt_wwpn,
&phba->sli4_hba.oas_next_lun,
(struct lpfc_name *)vpt_wwpn,
(struct lpfc_name *)tgt_wwpn,
&found_lun, lun_status, lun_pri))
return found_lun;
else
return NOT_OAS_ENABLED_LUN;
}
/**
* lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
* @phba: lpfc_hba pointer.
* @vpt_wwpn: vport wwpn by reference.
* @tgt_wwpn: target wwpn by reference.
* @lun: the fc lun for setting oas state.
* @oas_state: the oas state to be set to the oas_lun.
* @pri: priority
*
* This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
* a lun for OAS operations.
*
* Return:
* SUCCESS: 0
* -ENOMEM: failed to enable an lun for OAS operations
* -EPERM: OAS is not enabled
*/
static ssize_t
lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint64_t lun,
uint32_t oas_state, uint8_t pri)
{
int rc;
rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
oas_state, pri);
return rc;
}
/**
* lpfc_oas_lun_show - Return oas enabled luns from a chosen target
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* This routine returns a lun enabled for OAS each time the function
* is called.
*
* Returns:
* SUCCESS: size of formatted string.
* -EFAULT: target or vport wwpn was not set properly.
* -EPERM: oas is not enabled.
**/
static ssize_t
lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
uint64_t oas_lun;
int len = 0;
if (!phba->cfg_fof)
return -EPERM;
if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
return -EFAULT;
if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
return -EFAULT;
oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn,
phba->cfg_oas_tgt_wwpn,
&phba->cfg_oas_lun_status,
&phba->cfg_oas_priority);
if (oas_lun != NOT_OAS_ENABLED_LUN)
phba->cfg_oas_flags |= OAS_LUN_VALID;
len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
return len;
}
/**
* lpfc_oas_lun_store - Sets the OAS state for lun
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
* @count: size of the formatting string
*
* This function sets the OAS state for lun. Before this function is called,
* the vport wwpn, target wwpn, and oas state need to be set.
*
* Returns:
* SUCCESS: size of formatted string.
* -EFAULT: target or vport wwpn was not set properly.
* -EPERM: oas is not enabled.
* size of formatted string.
**/
static ssize_t
lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
uint64_t scsi_lun;
uint32_t pri;
ssize_t rc;
if (!phba->cfg_fof)
return -EPERM;
if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
return -EFAULT;
if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
return -EFAULT;
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
return -EINVAL;
pri = phba->cfg_oas_priority;
if (pri == 0)
pri = phba->cfg_XLanePriority;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx "
"priority 0x%x with oas state %d\n",
wwn_to_u64(phba->cfg_oas_vpt_wwpn),
wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
pri, phba->cfg_oas_lun_state);
rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn,
phba->cfg_oas_tgt_wwpn, scsi_lun,
phba->cfg_oas_lun_state, pri);
if (rc)
return rc;
return count;
}
static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
lpfc_oas_lun_show, lpfc_oas_lun_store);
int lpfc_enable_nvmet_cnt;
unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444);
MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target");
static int lpfc_poll = 0;
module_param(lpfc_poll, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
" 0 - none,"
" 1 - poll with interrupts enabled"
" 3 - poll and disable FCP ring interrupts");
static DEVICE_ATTR_RW(lpfc_poll);
int lpfc_no_hba_reset_cnt;
unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444);
MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset");
LPFC_ATTR(sli_mode, 3, 3, 3,
"SLI mode selector: 3 - select SLI-3");
LPFC_ATTR_R(enable_npiv, 1, 0, 1,
"Enable NPIV functionality");
LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
"FCF Fast failover=1 Priority failover=2");
/*
* lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of
* aborted IO.
* The range is [0,1]. Default value is 0
* 0, IO completes after ABTS issued (default).
* 1, IO completes after receipt of ABTS response or timeout.
*/
LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion");
/*
# lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
# 0x0 = disabled, XRI/OXID use not tracked.
# 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
# 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
*/
LPFC_ATTR_R(enable_rrq, 2, 0, 2,
"Enable RRQ functionality");
/*
# lpfc_suppress_link_up: Bring link up at initialization
# 0x0 = bring link up (issue MBX_INIT_LINK)
# 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
# 0x2 = never bring up link
# Default value is 0.
*/
LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
LPFC_DELAY_INIT_LINK_INDEFINITELY,
"Suppress Link Up at initialization");
static ssize_t
lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return scnprintf(buf, PAGE_SIZE, "%d\n",
phba->sli4_hba.pc_sli4_params.pls);
}
static DEVICE_ATTR(pls, 0444,
lpfc_pls_show, NULL);
static ssize_t
lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return scnprintf(buf, PAGE_SIZE, "%d\n",
(phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0);
}
static DEVICE_ATTR(pt, 0444,
lpfc_pt_show, NULL);
/*
# lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
# 1 - (1024)
# 2 - (2048)
# 3 - (3072)
# 4 - (4096)
# 5 - (5120)
*/
static ssize_t
lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
}
static DEVICE_ATTR(iocb_hw, S_IRUGO,
lpfc_iocb_hw_show, NULL);
static ssize_t
lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
return scnprintf(buf, PAGE_SIZE, "%d\n",
pring ? pring->txq_max : 0);
}
static DEVICE_ATTR(txq_hw, S_IRUGO,
lpfc_txq_hw_show, NULL);
static ssize_t
lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
return scnprintf(buf, PAGE_SIZE, "%d\n",
pring ? pring->txcmplq_max : 0);
}
static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
lpfc_txcmplq_hw_show, NULL);
/*
# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
# until the timer expires. Value range is [0,255]. Default value is 30.
*/
static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
module_param(lpfc_nodev_tmo, int, 0);
MODULE_PARM_DESC(lpfc_nodev_tmo,
"Seconds driver will hold I/O waiting "
"for a device to come back");
/**
* lpfc_nodev_tmo_show - Return the hba dev loss timeout value
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains the dev loss timeout in decimal.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
}
/**
* lpfc_nodev_tmo_init - Set the hba nodev timeout value
* @vport: lpfc vport structure pointer.
* @val: contains the nodev timeout value.
*
* Description:
* If the devloss tmo is already set then nodev tmo is set to devloss tmo,
* a kernel error message is printed and zero is returned.
* Else if val is in range then nodev tmo and devloss tmo are set to val.
* Otherwise nodev tmo is set to the default value.
*
* Returns:
* zero if already set or if val is in range
* -EINVAL val out of range
**/
static int
lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
{
if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
if (val != LPFC_DEF_DEVLOSS_TMO)
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0407 Ignoring lpfc_nodev_tmo module "
"parameter because lpfc_devloss_tmo "
"is set.\n");
return 0;
}
if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val;
return 0;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0400 lpfc_nodev_tmo attribute cannot be set to"
" %d, allowed range is [%d, %d]\n",
val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
return -EINVAL;
}
/**
* lpfc_update_rport_devloss_tmo - Update dev loss tmo value
* @vport: lpfc vport structure pointer.
*
* Description:
* Update all the ndlp's dev loss tmo with the vport devloss tmo value.
**/
static void
lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
{
struct Scsi_Host *shost;
struct lpfc_nodelist *ndlp;
#if (IS_ENABLED(CONFIG_NVME_FC))
struct lpfc_nvme_rport *rport;
struct nvme_fc_remote_port *remoteport = NULL;
#endif
shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->rport)
ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
#if (IS_ENABLED(CONFIG_NVME_FC))
spin_lock(&ndlp->lock);
rport = lpfc_ndlp_get_nrport(ndlp);
if (rport)
remoteport = rport->remoteport;
spin_unlock(&ndlp->lock);
if (rport && remoteport)
nvme_fc_set_remoteport_devloss(remoteport,
vport->cfg_devloss_tmo);
#endif
}
spin_unlock_irq(shost->host_lock);
}
/**
* lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
* @vport: lpfc vport structure pointer.
* @val: contains the tmo value.
*
* Description:
* If the devloss tmo is already set or the vport dev loss tmo has changed
* then a kernel error message is printed and zero is returned.
* Else if val is in range then nodev tmo and devloss tmo are set to val.
* Otherwise nodev tmo is set to the default value.
*
* Returns:
* zero if already set or if val is in range
* -EINVAL val out of range
**/
static int
lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
{
if (vport->dev_loss_tmo_changed ||
(lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0401 Ignoring change to lpfc_nodev_tmo "
"because lpfc_devloss_tmo is set.\n");
return 0;
}
if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val;
/*
* For compat: set the fc_host dev loss so new rports
* will get the value.
*/
fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
lpfc_update_rport_devloss_tmo(vport);
return 0;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0403 lpfc_nodev_tmo attribute cannot be set to "
"%d, allowed range is [%d, %d]\n",
val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
return -EINVAL;
}
lpfc_vport_param_store(nodev_tmo)
static DEVICE_ATTR_RW(lpfc_nodev_tmo);
/*
# lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
# disappear until the timer expires. Value range is [0,255]. Default
# value is 30.
*/
module_param(lpfc_devloss_tmo, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_devloss_tmo,
"Seconds driver will hold I/O waiting "
"for a device to come back");
lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
lpfc_vport_param_show(devloss_tmo)
/**
* lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
* @vport: lpfc vport structure pointer.
* @val: contains the tmo value.
*
* Description:
* If val is in a valid range then set the vport nodev tmo,
* devloss tmo, also set the vport dev loss tmo changed flag.
* Else a kernel error message is printed.
*
* Returns:
* zero if val is in range
* -EINVAL val out of range
**/
static int
lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
{
if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
vport->cfg_nodev_tmo = val;
vport->cfg_devloss_tmo = val;
vport->dev_loss_tmo_changed = 1;
fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
lpfc_update_rport_devloss_tmo(vport);
return 0;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0404 lpfc_devloss_tmo attribute cannot be set to "
"%d, allowed range is [%d, %d]\n",
val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
return -EINVAL;
}
lpfc_vport_param_store(devloss_tmo)
static DEVICE_ATTR_RW(lpfc_devloss_tmo);
/*
* lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it
* lpfc_suppress_rsp = 0 Disable
* lpfc_suppress_rsp = 1 Enable (default)
*
*/
LPFC_ATTR_R(suppress_rsp, 1, 0, 1,
"Enable suppress rsp feature is firmware supports it");
/*
* lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds
* lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs
* lpfc_nvmet_mrq = 1 use a single RQ pair
* lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ
*
*/
LPFC_ATTR_R(nvmet_mrq,
LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX,
"Specify number of RQ pairs for processing NVMET cmds");
/*
* lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post
* to each NVMET RQ. Range 64 to 2048, default is 512.
*/
LPFC_ATTR_R(nvmet_mrq_post,
LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST,
LPFC_NVMET_RQE_DEF_COUNT,
"Specify number of RQ buffers to initially post");
/*
* lpfc_enable_fc4_type: Defines what FC4 types are supported.
* Supported Values: 1 - register just FCP
* 3 - register both FCP and NVME
* Supported values are [1,3]. Default value is 3
*/
LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE,
LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE,
"Enable FC4 Protocol support - FCP / NVME");
/*
# lpfc_log_verbose: Only turn this flag on if you are willing to risk being
# deluged with LOTS of information.
# You can set a bit mask to record specific types of verbose messages:
# See lpfc_logmsh.h for definitions.
*/
LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
"Verbose logging bit-mask");
/*
# lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
# objects that have been registered with the nameserver after login.
*/
LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
"Deregister nameserver objects before LOGO");
/*
# lun_queue_depth: This parameter is used to limit the number of outstanding
# commands per FCP LUN.
*/
LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512,
"Max number of FCP commands we can queue to a specific LUN");
/*
# tgt_queue_depth: This parameter is used to limit the number of outstanding
# commands per target port. Value range is [10,65535]. Default value is 65535.
*/
static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH;
module_param(lpfc_tgt_queue_depth, uint, 0444);
MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth");
lpfc_vport_param_show(tgt_queue_depth);
lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH,
LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH);
/**
* lpfc_tgt_queue_depth_set: Sets an attribute value.
* @vport: lpfc vport structure pointer.
* @val: integer attribute value.
*
* Description: Sets the parameter to the new value.
*
* Returns:
* zero on success
* -EINVAL if val is invalid
*/
static int
lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH))
return -EINVAL;
if (val == vport->cfg_tgt_queue_depth)
return 0;
spin_lock_irq(shost->host_lock);
vport->cfg_tgt_queue_depth = val;
/* Next loop thru nodelist and change cmd_qdepth */
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
spin_unlock_irq(shost->host_lock);
return 0;
}
lpfc_vport_param_store(tgt_queue_depth);
static DEVICE_ATTR_RW(lpfc_tgt_queue_depth);
/*
# hba_queue_depth: This parameter is used to limit the number of outstanding
# commands per lpfc HBA. Value range is [32,8192]. If this parameter
# value is greater than the maximum number of exchanges supported by the HBA,
# then maximum number of exchanges supported by the HBA is used to determine
# the hba_queue_depth.
*/
LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
"Max number of FCP commands we can queue to a lpfc HBA");
/*
# peer_port_login: This parameter allows/prevents logins
# between peer ports hosted on the same physical port.
# When this parameter is set 0 peer ports of same physical port
# are not allowed to login to each other.
# When this parameter is set 1 peer ports of same physical port
# are allowed to login to each other.
# Default value of this parameter is 0.
*/
LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
"Allow peer ports on the same physical port to login to each "
"other.");
/*
# restrict_login: This parameter allows/prevents logins
# between Virtual Ports and remote initiators.
# When this parameter is not set (0) Virtual Ports will accept PLOGIs from
# other initiators and will attempt to PLOGI all remote ports.
# When this parameter is set (1) Virtual Ports will reject PLOGIs from
# remote ports and will not attempt to PLOGI to other initiators.
# This parameter does not restrict to the physical port.
# This parameter does not restrict logins to Fabric resident remote ports.
# Default value of this parameter is 1.
*/
static int lpfc_restrict_login = 1;
module_param(lpfc_restrict_login, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_restrict_login,
"Restrict virtual ports login to remote initiators.");
lpfc_vport_param_show(restrict_login);
/**
* lpfc_restrict_login_init - Set the vport restrict login flag
* @vport: lpfc vport structure pointer.
* @val: contains the restrict login value.
*
* Description:
* If val is not in a valid range then log a kernel error message and set
* the vport restrict login to one.
* If the port type is physical clear the restrict login flag and return.
* Else set the restrict login flag to val.
*
* Returns:
* zero if val is in range
* -EINVAL val out of range
**/
static int
lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
{
if (val < 0 || val > 1) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0422 lpfc_restrict_login attribute cannot "
"be set to %d, allowed range is [0, 1]\n",
val);
vport->cfg_restrict_login = 1;
return -EINVAL;
}
if (vport->port_type == LPFC_PHYSICAL_PORT) {
vport->cfg_restrict_login = 0;
return 0;
}
vport->cfg_restrict_login = val;
return 0;
}
/**
* lpfc_restrict_login_set - Set the vport restrict login flag
* @vport: lpfc vport structure pointer.
* @val: contains the restrict login value.
*
* Description:
* If val is not in a valid range then log a kernel error message and set
* the vport restrict login to one.
* If the port type is physical and the val is not zero log a kernel
* error message, clear the restrict login flag and return zero.
* Else set the restrict login flag to val.
*
* Returns:
* zero if val is in range
* -EINVAL val out of range
**/
static int
lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
{
if (val < 0 || val > 1) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0425 lpfc_restrict_login attribute cannot "
"be set to %d, allowed range is [0, 1]\n",
val);
vport->cfg_restrict_login = 1;
return -EINVAL;
}
if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0468 lpfc_restrict_login must be 0 for "
"Physical ports.\n");
vport->cfg_restrict_login = 0;
return 0;
}
vport->cfg_restrict_login = val;
return 0;
}
lpfc_vport_param_store(restrict_login);
static DEVICE_ATTR_RW(lpfc_restrict_login);
/*
# Some disk devices have a "select ID" or "select Target" capability.
# From a protocol standpoint "select ID" usually means select the
# Fibre channel "ALPA". In the FC-AL Profile there is an "informative
# annex" which contains a table that maps a "select ID" (a number
# between 0 and 7F) to an ALPA. By default, for compatibility with
# older drivers, the lpfc driver scans this table from low ALPA to high
# ALPA.
#
# Turning on the scan-down variable (on = 1, off = 0) will
# cause the lpfc driver to use an inverted table, effectively
# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
#
# (Note: This "select ID" functionality is a LOOP ONLY characteristic
# and will not work across a fabric. Also this parameter will take
# effect only in the case when ALPA map is not available.)
*/
LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
"Start scanning for devices from highest ALPA to lowest");
/*
# lpfc_topology: link topology for init link
# 0x0 = attempt loop mode then point-to-point
# 0x01 = internal loopback mode
# 0x02 = attempt point-to-point mode only
# 0x04 = attempt loop mode only
# 0x06 = attempt point-to-point mode then loop
# Set point-to-point mode if you want to run as an N_Port.
# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
# Default value is 0.
*/
LPFC_ATTR(topology, 0, 0, 6,
"Select Fibre Channel topology");
/**
* lpfc_topology_store - Set the adapters topology field
* @dev: class device that is converted into a scsi_host.
* @attr:device attribute, not used.
* @buf: buffer for passing information.
* @count: size of the data buffer.
*
* Description:
* If val is in a valid range then set the adapter's topology field and
* issue a lip; if the lip fails reset the topology to the old value.
*
* If the value is not in range log a kernel error message and return an error.
*
* Returns:
* zero if val is in range and lip okay
* non-zero return value from lpfc_issue_lip()
* -EINVAL val out of range
**/
static ssize_t
lpfc_topology_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int val = 0;
int nolip = 0;
const char *val_buf = buf;
int err;
uint32_t prev_val;
u8 sli_family, if_type;
if (!strncmp(buf, "nolip ", strlen("nolip "))) {
nolip = 1;
val_buf = &buf[strlen("nolip ")];
}
if (!isdigit(val_buf[0]))
return -EINVAL;
if (sscanf(val_buf, "%i", &val) != 1)
return -EINVAL;
if (val >= 0 && val <= 6) {
prev_val = phba->cfg_topology;
if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
val == 4) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"3113 Loop mode not supported at speed %d\n",
val);
return -EINVAL;
}
/*
* The 'topology' is not a configurable parameter if :
* - persistent topology enabled
* - ASIC_GEN_NUM >= 0xC, with no private loop support
*/
sli_family = bf_get(lpfc_sli_intf_sli_family,
&phba->sli4_hba.sli_intf);
if_type = bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf);
if ((phba->hba_flag & HBA_PERSISTENT_TOPO ||
(!phba->sli4_hba.pc_sli4_params.pls &&
(sli_family == LPFC_SLI_INTF_FAMILY_G6 ||
if_type == LPFC_SLI_INTF_IF_TYPE_6))) &&
val == 4) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"3114 Loop mode not supported\n");
return -EINVAL;
}
phba->cfg_topology = val;
if (nolip)
return strlen(buf);
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"3054 lpfc_topology changed from %d to %d\n",
prev_val, val);
if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4)
phba->fc_topology_changed = 1;
err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
if (err) {
phba->cfg_topology = prev_val;
return -EINVAL;
} else
return strlen(buf);
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"%d:0467 lpfc_topology attribute cannot be set to %d, "
"allowed range is [0, 6]\n",
phba->brd_no, val);
return -EINVAL;
}
lpfc_param_show(topology)
static DEVICE_ATTR_RW(lpfc_topology);
/**
* lpfc_static_vport_show: Read callback function for
* lpfc_static_vport sysfs file.
* @dev: Pointer to class device object.
* @attr: device attribute structure.
* @buf: Data buffer.
*
* This function is the read call back function for
* lpfc_static_vport sysfs file. The lpfc_static_vport
* sysfs file report the mageability of the vport.
**/
static ssize_t
lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
if (vport->vport_flag & STATIC_VPORT)
sprintf(buf, "1\n");
else
sprintf(buf, "0\n");
return strlen(buf);
}
/*
* Sysfs attribute to control the statistical data collection.
*/
static DEVICE_ATTR_RO(lpfc_static_vport);
/*
# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
# connection.
# Value range is [0,16]. Default value is 0.
*/
/**
* lpfc_link_speed_store - Set the adapters link speed
* @dev: Pointer to class device.
* @attr: Unused.
* @buf: Data buffer.
* @count: Size of the data buffer.
*
* Description:
* If val is in a valid range then set the adapter's link speed field and
* issue a lip; if the lip fails reset the link speed to the old value.
*
* Notes:
* If the value is not in range log a kernel error message and return an error.
*
* Returns:
* zero if val is in range and lip okay.
* non-zero return value from lpfc_issue_lip()
* -EINVAL val out of range
**/
static ssize_t
lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int val = LPFC_USER_LINK_SPEED_AUTO;
int nolip = 0;
const char *val_buf = buf;
int err;
uint32_t prev_val, if_type;
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 &&
phba->hba_flag & HBA_FORCED_LINK_SPEED)
return -EPERM;
if (!strncmp(buf, "nolip ", strlen("nolip "))) {
nolip = 1;
val_buf = &buf[strlen("nolip ")];
}
if (!isdigit(val_buf[0]))
return -EINVAL;
if (sscanf(val_buf, "%i", &val) != 1)
return -EINVAL;
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"3055 lpfc_link_speed changed from %d to %d %s\n",
phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) ||
((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) ||
((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2879 lpfc_link_speed attribute cannot be set "
"to %d. Speed is not supported by this port.\n",
val);
return -EINVAL;
}
if (val >= LPFC_USER_LINK_SPEED_16G &&
phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3112 lpfc_link_speed attribute cannot be set "
"to %d. Speed is not supported in loop mode.\n",
val);
return -EINVAL;
}
switch (val) {
case LPFC_USER_LINK_SPEED_AUTO:
case LPFC_USER_LINK_SPEED_1G:
case LPFC_USER_LINK_SPEED_2G:
case LPFC_USER_LINK_SPEED_4G:
case LPFC_USER_LINK_SPEED_8G:
case LPFC_USER_LINK_SPEED_16G:
case LPFC_USER_LINK_SPEED_32G:
case LPFC_USER_LINK_SPEED_64G:
prev_val = phba->cfg_link_speed;
phba->cfg_link_speed = val;
if (nolip)
return strlen(buf);
err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
if (err) {
phba->cfg_link_speed = prev_val;
return -EINVAL;
}
return strlen(buf);
default:
break;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0469 lpfc_link_speed attribute cannot be set to %d, "
"allowed values are [%s]\n",
val, LPFC_LINK_SPEED_STRING);
return -EINVAL;
}
static int lpfc_link_speed = 0;
module_param(lpfc_link_speed, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
lpfc_param_show(link_speed)
/**
* lpfc_link_speed_init - Set the adapters link speed
* @phba: lpfc_hba pointer.
* @val: link speed value.
*
* Description:
* If val is in a valid range then set the adapter's link speed field.
*
* Notes:
* If the value is not in range log a kernel error message, clear the link
* speed and return an error.
*
* Returns:
* zero if val saved.
* -EINVAL val out of range
**/
static int
lpfc_link_speed_init(struct lpfc_hba *phba, int val)
{
if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3111 lpfc_link_speed of %d cannot "
"support loop mode, setting topology to default.\n",
val);
phba->cfg_topology = 0;
}
switch (val) {
case LPFC_USER_LINK_SPEED_AUTO:
case LPFC_USER_LINK_SPEED_1G:
case LPFC_USER_LINK_SPEED_2G:
case LPFC_USER_LINK_SPEED_4G:
case LPFC_USER_LINK_SPEED_8G:
case LPFC_USER_LINK_SPEED_16G:
case LPFC_USER_LINK_SPEED_32G:
case LPFC_USER_LINK_SPEED_64G:
phba->cfg_link_speed = val;
return 0;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0405 lpfc_link_speed attribute cannot "
"be set to %d, allowed values are "
"["LPFC_LINK_SPEED_STRING"]\n", val);
phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
return -EINVAL;
}
}
static DEVICE_ATTR_RW(lpfc_link_speed);
/*
# lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
# 1 = aer supported and enabled (default)
# PCIe error reporting is always enabled by the PCI core, so this always
# shows 1.
#
# N.B. Parts of LPFC_ATTR open-coded since some of the underlying
# infrastructure (phba->cfg_aer_support) is gone.
*/
static uint lpfc_aer_support = 1;
module_param(lpfc_aer_support, uint, S_IRUGO);
MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
static ssize_t
lpfc_aer_support_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", lpfc_aer_support);
}
/**
* lpfc_aer_support_store - Set the adapter for aer support
*
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: containing enable or disable aer flag.
* @count: unused variable.
*
* Description:
* PCIe error reporting is enabled by the PCI core, so drivers don't need
* to do anything. Retain this interface for backwards compatibility,
* but do nothing.
*
* Returns:
* length of the buf on success
* -EINVAL if val out of range
**/
static ssize_t
lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int val = 0;
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "%i", &val) != 1)
return -EINVAL;
dev_info_once(dev, "PCIe error reporting automatically enabled by the PCI core; sysfs write ignored\n");
return strlen(buf);
}
static DEVICE_ATTR_RW(lpfc_aer_support);
/**
* lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: containing flag 1 for aer cleanup state.
* @count: unused variable.
*
* Description:
* If the @buf contains 1, invokes the kernel AER helper routine
* pci_aer_clear_nonfatal_status() to clean up the uncorrectable
* error status register.
*
* Notes:
*
* Returns:
* -EINVAL if the buf does not contain 1
* -EPERM if the OS cannot clear AER error status, i.e., when platform
* firmware owns the AER Capability
**/
static ssize_t
lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int val, rc = -1;
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "%i", &val) != 1)
return -EINVAL;
if (val != 1)
return -EINVAL;
rc = pci_aer_clear_nonfatal_status(phba->pcidev);
if (rc == 0)
return strlen(buf);
else
return -EPERM;
}
static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
lpfc_aer_cleanup_state);
/**
* lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
*
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: containing the string the number of vfs to be enabled.
* @count: unused variable.
*
* Description:
* When this api is called either through user sysfs, the driver shall
* try to enable or disable SR-IOV virtual functions according to the
* following:
*
* If zero virtual function has been enabled to the physical function,
* the driver shall invoke the pci enable virtual function api trying
* to enable the virtual functions. If the nr_vfn provided is greater
* than the maximum supported, the maximum virtual function number will
* be used for invoking the api; otherwise, the nr_vfn provided shall
* be used for invoking the api. If the api call returned success, the
* actual number of virtual functions enabled will be set to the driver
* cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
* cfg_sriov_nr_virtfn remains zero.
*
* If none-zero virtual functions have already been enabled to the
* physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
* -EINVAL will be returned and the driver does nothing;
*
* If the nr_vfn provided is zero and none-zero virtual functions have
* been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
* disabling virtual function api shall be invoded to disable all the
* virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
* zero. Otherwise, if zero virtual function has been enabled, do
* nothing.
*
* Returns:
* length of the buf on success if val is in range the intended mode
* is supported.
* -EINVAL if val out of range or intended mode is not supported.
**/
static ssize_t
lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct pci_dev *pdev = phba->pcidev;
int val = 0, rc = -EINVAL;
/* Sanity check on user data */
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "%i", &val) != 1)
return -EINVAL;
if (val < 0)
return -EINVAL;
/* Request disabling virtual functions */
if (val == 0) {
if (phba->cfg_sriov_nr_virtfn > 0) {
pci_disable_sriov(pdev);
phba->cfg_sriov_nr_virtfn = 0;
}
return strlen(buf);
}
/* Request enabling virtual functions */
if (phba->cfg_sriov_nr_virtfn > 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3018 There are %d virtual functions "
"enabled on physical function.\n",
phba->cfg_sriov_nr_virtfn);
return -EEXIST;
}
if (val <= LPFC_MAX_VFN_PER_PFN)
phba->cfg_sriov_nr_virtfn = val;
else {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3019 Enabling %d virtual functions is not "
"allowed.\n", val);
return -EINVAL;
}
rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
if (rc) {
phba->cfg_sriov_nr_virtfn = 0;
rc = -EPERM;
} else
rc = strlen(buf);
return rc;
}
LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN,
"Enable PCIe device SR-IOV virtual fn");
lpfc_param_show(sriov_nr_virtfn)
static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn);
/**
* lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade
*
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: containing the string the number of vfs to be enabled.
* @count: unused variable.
*
* Description:
*
* Returns:
* length of the buf on success if val is in range the intended mode
* is supported.
* -EINVAL if val out of range or intended mode is not supported.
**/
static ssize_t
lpfc_request_firmware_upgrade_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int val = 0, rc;
/* Sanity check on user data */
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "%i", &val) != 1)
return -EINVAL;
if (val != 1)
return -EINVAL;
rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
if (rc)
rc = -EPERM;
else
rc = strlen(buf);
return rc;
}
static int lpfc_req_fw_upgrade;
module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
lpfc_param_show(request_firmware_upgrade)
/**
* lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
* @phba: lpfc_hba pointer.
* @val: 0 or 1.
*
* Description:
* Set the initial Linux generic firmware upgrade enable or disable flag.
*
* Returns:
* zero if val saved.
* -EINVAL val out of range
**/
static int
lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
{
if (val >= 0 && val <= 1) {
phba->cfg_request_firmware_upgrade = val;
return 0;
}
return -EINVAL;
}
static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
lpfc_request_firmware_upgrade_show,
lpfc_request_firmware_upgrade_store);
/**
* lpfc_force_rscn_store
*
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: unused string
* @count: unused variable.
*
* Description:
* Force the switch to send a RSCN to all other NPorts in our zone
* If we are direct connect pt2pt, build the RSCN command ourself
* and send to the other NPort. Not supported for private loop.
*
* Returns:
* 0 - on success
* -EIO - if command is not sent
**/
static ssize_t
lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
int i;
i = lpfc_issue_els_rscn(vport, 0);
if (i)
return -EIO;
return strlen(buf);
}
/*
* lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts
* connected to the HBA.
*
* Value range is any ascii value
*/
static int lpfc_force_rscn;
module_param(lpfc_force_rscn, int, 0644);
MODULE_PARM_DESC(lpfc_force_rscn,
"Force an RSCN to be sent to all remote NPorts");
lpfc_param_show(force_rscn)
/**
* lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts
* @phba: lpfc_hba pointer.
* @val: unused value.
*
* Returns:
* zero if val saved.
**/
static int
lpfc_force_rscn_init(struct lpfc_hba *phba, int val)
{
return 0;
}
static DEVICE_ATTR_RW(lpfc_force_rscn);
/**
* lpfc_fcp_imax_store
*
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: string with the number of fast-path FCP interrupts per second.
* @count: unused variable.
*
* Description:
* If val is in a valid range [636,651042], then set the adapter's
* maximum number of fast-path FCP interrupts per second.
*
* Returns:
* length of the buf on success if val is in range the intended mode
* is supported.
* -EINVAL if val out of range or intended mode is not supported.
**/
static ssize_t
lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_eq_intr_info *eqi;
uint32_t usdelay;
int val = 0, i;
/* fcp_imax is only valid for SLI4 */
if (phba->sli_rev != LPFC_SLI_REV4)
return -EINVAL;
/* Sanity check on user data */
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "%i", &val) != 1)
return -EINVAL;
/*
* Value range for the HBA is [5000,5000000]
* The value for each EQ depends on how many EQs are configured.
* Allow value == 0
*/
if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX))
return -EINVAL;
phba->cfg_auto_imax = (val) ? 0 : 1;
if (phba->cfg_fcp_imax && !val) {
queue_delayed_work(phba->wq, &phba->eq_delay_work,
msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
for_each_present_cpu(i) {
eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
eqi->icnt = 0;
}
}
phba->cfg_fcp_imax = (uint32_t)val;
if (phba->cfg_fcp_imax)
usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
else
usdelay = 0;
for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT)
lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT,
usdelay);
return strlen(buf);
}
/*
# lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
# for the HBA.
#
# Value range is [5,000 to 5,000,000]. Default value is 50,000.
*/
static int lpfc_fcp_imax = LPFC_DEF_IMAX;
module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(lpfc_fcp_imax,
"Set the maximum number of FCP interrupts per second per HBA");
lpfc_param_show(fcp_imax)
/**
* lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
* @phba: lpfc_hba pointer.
* @val: link speed value.
*
* Description:
* If val is in a valid range [636,651042], then initialize the adapter's
* maximum number of fast-path FCP interrupts per second.
*
* Returns:
* zero if val saved.
* -EINVAL val out of range
**/
static int
lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
{
if (phba->sli_rev != LPFC_SLI_REV4) {
phba->cfg_fcp_imax = 0;
return 0;
}
if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) ||
(val == 0)) {
phba->cfg_fcp_imax = val;
return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3016 lpfc_fcp_imax: %d out of range, using default\n",
val);
phba->cfg_fcp_imax = LPFC_DEF_IMAX;
return 0;
}
static DEVICE_ATTR_RW(lpfc_fcp_imax);
/**
* lpfc_cq_max_proc_limit_store
*
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: string with the cq max processing limit of cqes
* @count: unused variable.
*
* Description:
* If val is in a valid range, then set value on each cq
*
* Returns:
* The length of the buf: if successful
* -ERANGE: if val is not in the valid range
* -EINVAL: if bad value format or intended mode is not supported.
**/
static ssize_t
lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_queue *eq, *cq;
unsigned long val;
int i;
/* cq_max_proc_limit is only valid for SLI4 */
if (phba->sli_rev != LPFC_SLI_REV4)
return -EINVAL;
/* Sanity check on user data */
if (!isdigit(buf[0]))
return -EINVAL;
if (kstrtoul(buf, 0, &val))
return -EINVAL;
if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT)
return -ERANGE;
phba->cfg_cq_max_proc_limit = (uint32_t)val;
/* set the values on the cq's */
for (i = 0; i < phba->cfg_irq_chann; i++) {
/* Get the EQ corresponding to the IRQ vector */
eq = phba->sli4_hba.hba_eq_hdl[i].eq;
if (!eq)
continue;
list_for_each_entry(cq, &eq->child_list, list)
cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
cq->entry_count);
}
return strlen(buf);
}
/*
* lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an
* itteration of CQ processing.
*/
static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
module_param(lpfc_cq_max_proc_limit, int, 0644);
MODULE_PARM_DESC(lpfc_cq_max_proc_limit,
"Set the maximum number CQEs processed in an iteration of "
"CQ processing");
lpfc_param_show(cq_max_proc_limit)
/*
* lpfc_cq_poll_threshold: Set the threshold of CQE completions in a
* single handler call which should request a polled completion rather
* than re-enabling interrupts.
*/
LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL,
LPFC_CQ_MIN_THRESHOLD_TO_POLL,
LPFC_CQ_MAX_THRESHOLD_TO_POLL,
"CQE Processing Threshold to enable Polling");
/**
* lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit
* @phba: lpfc_hba pointer.
* @val: entry limit
*
* Description:
* If val is in a valid range, then initialize the adapter's maximum
* value.
*
* Returns:
* Always returns 0 for success, even if value not always set to
* requested value. If value out of range or not supported, will fall
* back to default.
**/
static int
lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val)
{
phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
if (phba->sli_rev != LPFC_SLI_REV4)
return 0;
if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) {
phba->cfg_cq_max_proc_limit = val;
return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0371 lpfc_cq_max_proc_limit: %d out of range, using "
"default\n",
phba->cfg_cq_max_proc_limit);
return 0;
}
static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit);
/**
* lpfc_fcp_cpu_map_show - Display current driver CPU affinity
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains text describing the state of the link.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_vector_map_info *cpup;
int len = 0;
if ((phba->sli_rev != LPFC_SLI_REV4) ||
(phba->intr_type != MSIX))
return len;
switch (phba->cfg_fcp_cpu_map) {
case 0:
len += scnprintf(buf + len, PAGE_SIZE-len,
"fcp_cpu_map: No mapping (%d)\n",
phba->cfg_fcp_cpu_map);
return len;
case 1:
len += scnprintf(buf + len, PAGE_SIZE-len,
"fcp_cpu_map: HBA centric mapping (%d): "
"%d of %d CPUs online from %d possible CPUs\n",
phba->cfg_fcp_cpu_map, num_online_cpus(),
num_present_cpus(),
phba->sli4_hba.num_possible_cpu);
break;
}
while (phba->sli4_hba.curr_disp_cpu <
phba->sli4_hba.num_possible_cpu) {
cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
if (!cpu_present(phba->sli4_hba.curr_disp_cpu))
len += scnprintf(buf + len, PAGE_SIZE - len,
"CPU %02d not present\n",
phba->sli4_hba.curr_disp_cpu);
else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
len += scnprintf(
buf + len, PAGE_SIZE - len,
"CPU %02d hdwq None "
"physid %d coreid %d ht %d ua %d\n",
phba->sli4_hba.curr_disp_cpu,
cpup->phys_id, cpup->core_id,
(cpup->flag & LPFC_CPU_MAP_HYPER),
(cpup->flag & LPFC_CPU_MAP_UNASSIGN));
else
len += scnprintf(
buf + len, PAGE_SIZE - len,
"CPU %02d EQ None hdwq %04d "
"physid %d coreid %d ht %d ua %d\n",
phba->sli4_hba.curr_disp_cpu,
cpup->hdwq, cpup->phys_id,
cpup->core_id,
(cpup->flag & LPFC_CPU_MAP_HYPER),
(cpup->flag & LPFC_CPU_MAP_UNASSIGN));
} else {
if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
len += scnprintf(
buf + len, PAGE_SIZE - len,
"CPU %02d hdwq None "
"physid %d coreid %d ht %d ua %d IRQ %d\n",
phba->sli4_hba.curr_disp_cpu,
cpup->phys_id,
cpup->core_id,
(cpup->flag & LPFC_CPU_MAP_HYPER),
(cpup->flag & LPFC_CPU_MAP_UNASSIGN),
lpfc_get_irq(cpup->eq));
else
len += scnprintf(
buf + len, PAGE_SIZE - len,
"CPU %02d EQ %04d hdwq %04d "
"physid %d coreid %d ht %d ua %d IRQ %d\n",
phba->sli4_hba.curr_disp_cpu,
cpup->eq, cpup->hdwq, cpup->phys_id,
cpup->core_id,
(cpup->flag & LPFC_CPU_MAP_HYPER),
(cpup->flag & LPFC_CPU_MAP_UNASSIGN),
lpfc_get_irq(cpup->eq));
}
phba->sli4_hba.curr_disp_cpu++;
/* display max number of CPUs keeping some margin */
if (phba->sli4_hba.curr_disp_cpu <
phba->sli4_hba.num_possible_cpu &&
(len >= (PAGE_SIZE - 64))) {
len += scnprintf(buf + len,
PAGE_SIZE - len, "more...\n");
break;
}
}
if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu)
phba->sli4_hba.curr_disp_cpu = 0;
return len;
}
/**
* lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: one or more lpfc_polling_flags values.
* @count: not used.
*
* Returns:
* -EINVAL - Not implemented yet.
**/
static ssize_t
lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
return -EINVAL;
}
/*
# lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
# for the HBA.
#
# Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1).
# 0 - Do not affinitze IRQ vectors
# 1 - Affintize HBA vectors with respect to each HBA
# (start with CPU0 for each HBA)
# This also defines how Hardware Queues are mapped to specific CPUs.
*/
static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP;
module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(lpfc_fcp_cpu_map,
"Defines how to map CPUs to IRQ vectors per HBA");
/**
* lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
* @phba: lpfc_hba pointer.
* @val: link speed value.
*
* Description:
* If val is in a valid range [0-2], then affinitze the adapter's
* MSIX vectors.
*
* Returns:
* zero if val saved.
* -EINVAL val out of range
**/
static int
lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
{
if (phba->sli_rev != LPFC_SLI_REV4) {
phba->cfg_fcp_cpu_map = 0;
return 0;
}
if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
phba->cfg_fcp_cpu_map = val;
return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3326 lpfc_fcp_cpu_map: %d out of range, using "
"default\n", val);
phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP;
return 0;
}
static DEVICE_ATTR_RW(lpfc_fcp_cpu_map);
/*
# lpfc_fcp_class: Determines FC class to use for the FCP protocol.
# Value range is [2,3]. Default value is 3.
*/
LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
"Select Fibre Channel class of service for FCP sequences");
/*
# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
# is [0,1]. Default value is 1.
*/
LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1,
"Use ADISC on rediscovery to authenticate FCP devices");
/*
# lpfc_first_burst_size: First burst size to use on the NPorts
# that support first burst.
# Value range is [0,65536]. Default value is 0.
*/
LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
"First burst size for Targets that support first burst");
/*
* lpfc_nvmet_fb_size: NVME Target mode supported first burst size.
* When the driver is configured as an NVME target, this value is
* communicated to the NVME initiator in the PRLI response. It is
* used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support
* parameters are set and the target is sending the PRLI RSP.
* Parameter supported on physical port only - no NPIV support.
* Value range is [0,65536]. Default value is 0.
*/
LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536,
"NVME Target mode first burst size in 512B increments.");
/*
* lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions.
* For the Initiator (I), enabling this parameter means that an NVMET
* PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be
* processed by the initiator for subsequent NVME FCP IO.
* Currently, this feature is not supported on the NVME target
* Value range is [0,1]. Default value is 0 (disabled).
*/
LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1,
"Enable First Burst feature for NVME Initiator.");
/*
# lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
# depth. Default value is 0. When the value of this parameter is zero the
# SCSI command completion time is not used for controlling I/O queue depth. When
# the parameter is set to a non-zero value, the I/O queue depth is controlled
# to limit the I/O completion time to the parameter value.
# The value is set in milliseconds.
*/
LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000,
"Use command completion time to control queue depth");
lpfc_vport_param_show(max_scsicmpl_time);
static int
lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp, *next_ndlp;
if (val == vport->cfg_max_scsicmpl_time)
return 0;
if ((val < 0) || (val > 60000))
return -EINVAL;
vport->cfg_max_scsicmpl_time = val;
spin_lock_irq(shost->host_lock);
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
continue;
ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
}
spin_unlock_irq(shost->host_lock);
return 0;
}
lpfc_vport_param_store(max_scsicmpl_time);
static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time);
/*
# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
# range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
/*
# lpfc_xri_rebalancing: enable or disable XRI rebalancing feature
# range is [0,1]. Default value is 1.
*/
LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing");
/*
* lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds
* range is [0,1]. Default value is 0.
* For [0], FCP commands are issued to Work Queues based on upper layer
* hardware queue index.
* For [1], FCP commands are issued to a Work Queue associated with the
* current CPU.
*
* LPFC_FCP_SCHED_BY_HDWQ == 0
* LPFC_FCP_SCHED_BY_CPU == 1
*
* The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu
* affinity for FCP/NVME I/Os through Work Queues associated with the current
* CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os
* through WQs will be used.
*/
LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU,
LPFC_FCP_SCHED_BY_HDWQ,
LPFC_FCP_SCHED_BY_CPU,
"Determine scheduling algorithm for "
"issuing commands [0] - Hardware Queue, [1] - Current CPU");
/*
* lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN
* range is [0,1]. Default value is 0.
* For [0], GID_FT is used for NameServer queries after RSCN (default)
* For [1], GID_PT is used for NameServer queries after RSCN
*
*/
LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT,
LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT,
"Determine algorithm NameServer queries after RSCN "
"[0] - GID_FT, [1] - GID_PT");
/*
# lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
# range is [0,1]. Default value is 0.
# For [0], bus reset issues target reset to ALL devices
# For [1], bus reset issues target reset to non-FCP2 devices
*/
LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
"FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
/*
# lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
# cr_delay (msec) or cr_count outstanding commands. cr_delay can take
# value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
# is 0. Default value of cr_count is 1. The cr_count feature is disabled if
# cr_delay is set to 0.
*/
LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
"interrupt response is generated");
LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
"interrupt response is generated");
/*
# lpfc_multi_ring_support: Determines how many rings to spread available
# cmd/rsp IOCB entries across.
# Value range is [1,2]. Default value is 1.
*/
LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
"SLI rings to spread IOCB entries across");
/*
# lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
# identifies what rctl value to configure the additional ring for.
# Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
*/
LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
255, "Identifies RCTL for additional ring configuration");
/*
# lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
# identifies what type value to configure the additional ring for.
# Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
*/
LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
255, "Identifies TYPE for additional ring configuration");
/*
# lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN
# 0 = SmartSAN functionality disabled (default)
# 1 = SmartSAN functionality enabled
# This parameter will override the value of lpfc_fdmi_on module parameter.
# Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
/*
# lpfc_fdmi_on: Controls FDMI support.
# 0 No FDMI support
# 1 Traditional FDMI support (default)
# Traditional FDMI support means the driver will assume FDMI-2 support;
# however, if that fails, it will fallback to FDMI-1.
# If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on.
# If lpfc_enable_SmartSAN is set 0, the driver uses the current value of
# lpfc_fdmi_on.
# Value range [0,1]. Default value is 1.
*/
LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support");
/*
# Specifies the maximum number of ELS cmds we can have outstanding (for
# discovery). Value range is [1,64]. Default value = 32.
*/
LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
"during discovery");
/*
# lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
# will be scanned by the SCSI midlayer when sequential scanning is
# used; and is also the highest LUN ID allowed when the SCSI midlayer
# parses REPORT_LUN responses. The lpfc driver has no LUN count or
# LUN ID limit, but the SCSI midlayer requires this field for the uses
# above. The lpfc driver limits the default value to 255 for two reasons.
# As it bounds the sequential scan loop, scanning for thousands of luns
# on a target can take minutes of wall clock time. Additionally,
# there are FC targets, such as JBODs, that only recognize 8-bits of
# LUN ID. When they receive a value greater than 8 bits, they chop off
# the high order bits. In other words, they see LUN IDs 0, 256, 512,
# and so on all as LUN ID 0. This causes the linux kernel, which sees
# valid responses at each of the LUN IDs, to believe there are multiple
# devices present, when in fact, there is only 1.
# A customer that is aware of their target behaviors, and the results as
# indicated above, is welcome to increase the lpfc_max_luns value.
# As mentioned, this value is not used by the lpfc driver, only the
# SCSI midlayer.
# Value range is [0,65535]. Default value is 255.
# NOTE: The SCSI layer might probe all allowed LUN on some old targets.
*/
LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
/*
# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
# Value range is [1,255], default value is 10.
*/
LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
"Milliseconds driver will wait between polling FCP ring");
/*
# lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
# to complete in seconds. Value range is [5,180], default value is 60.
*/
LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
"Maximum time to wait for task management commands to complete");
/*
# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
# support this feature
# 0 = MSI disabled
# 1 = MSI enabled
# 2 = MSI-X enabled (default)
# Value range is [0,2]. Default value is 2.
*/
LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
"MSI-X (2), if possible");
/*
* lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs
*
* 0 = NVME OAS disabled
* 1 = NVME OAS enabled
*
* Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_RW(nvme_oas, 0, 0, 1,
"Use OAS bit on NVME IOs");
/*
* lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs
*
* 0 = Put NVME Command in SGL
* 1 = Embed NVME Command in WQE (unless G7)
* 2 = Embed NVME Command in WQE (force)
*
* Value range is [0,2]. Default value is 1.
*/
LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2,
"Embed NVME Command in WQE");
/*
* lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues
* the driver will advertise it supports to the SCSI layer.
*
* 0 = Set nr_hw_queues by the number of CPUs or HW queues.
* 1,256 = Manually specify nr_hw_queue value to be advertised,
*
* Value range is [0,256]. Default value is 8.
*/
LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF,
LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX,
"Set the number of SCSI Queues advertised");
/*
* lpfc_hdw_queue: Set the number of Hardware Queues the driver
* will advertise it supports to the NVME and SCSI layers. This also
* will map to the number of CQ/WQ pairs the driver will create.
*
* The NVME Layer will try to create this many, plus 1 administrative
* hardware queue. The administrative queue will always map to WQ 0
* A hardware IO queue maps (qidx) to a specific driver CQ/WQ.
*
* 0 = Configure the number of hdw queues to the number of active CPUs.
* 1,256 = Manually specify how many hdw queues to use.
*
* Value range is [0,256]. Default value is 0.
*/
LPFC_ATTR_R(hdw_queue,
LPFC_HBA_HDWQ_DEF,
LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX,
"Set the number of I/O Hardware Queues");
#if IS_ENABLED(CONFIG_X86)
/**
* lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on
* irq_chann_mode
* @phba: Pointer to HBA context object.
**/
static void
lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba)
{
unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE;
const struct cpumask *sibling_mask;
struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask;
cpumask_clear(aff_mask);
if (phba->irq_chann_mode == NUMA_MODE) {
/* Check if we're a NUMA architecture */
numa_node = dev_to_node(&phba->pcidev->dev);
if (numa_node == NUMA_NO_NODE) {
phba->irq_chann_mode = NORMAL_MODE;
return;
}
}
for_each_possible_cpu(cpu) {
switch (phba->irq_chann_mode) {
case NUMA_MODE:
if (cpu_to_node(cpu) == numa_node)
cpumask_set_cpu(cpu, aff_mask);
break;
case NHT_MODE:
sibling_mask = topology_sibling_cpumask(cpu);
first_cpu = cpumask_first(sibling_mask);
if (first_cpu < nr_cpu_ids)
cpumask_set_cpu(first_cpu, aff_mask);
break;
default:
break;
}
}
}
#endif
static void
lpfc_assign_default_irq_chann(struct lpfc_hba *phba)
{
#if IS_ENABLED(CONFIG_X86)
switch (boot_cpu_data.x86_vendor) {
case X86_VENDOR_AMD:
/* If AMD architecture, then default is NUMA_MODE */
phba->irq_chann_mode = NUMA_MODE;
break;
case X86_VENDOR_INTEL:
/* If Intel architecture, then default is no hyperthread mode */
phba->irq_chann_mode = NHT_MODE;
break;
default:
phba->irq_chann_mode = NORMAL_MODE;
break;
}
lpfc_cpumask_irq_mode_init(phba);
#else
phba->irq_chann_mode = NORMAL_MODE;
#endif
}
/*
* lpfc_irq_chann: Set the number of IRQ vectors that are available
* for Hardware Queues to utilize. This also will map to the number
* of EQ / MSI-X vectors the driver will create. This should never be
* more than the number of Hardware Queues
*
* 0 = Configure number of IRQ Channels to:
* if AMD architecture, number of CPUs on HBA's NUMA node
* if Intel architecture, number of physical CPUs.
* otherwise, number of active CPUs.
* [1,256] = Manually specify how many IRQ Channels to use.
*
* Value range is [0,256]. Default value is [0].
*/
static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF;
module_param(lpfc_irq_chann, uint, 0444);
MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate");
/* lpfc_irq_chann_init - Set the hba irq_chann initial value
* @phba: lpfc_hba pointer.
* @val: contains the initial value
*
* Description:
* Validates the initial value is within range and assigns it to the
* adapter. If not in range, an error message is posted and the
* default value is assigned.
*
* Returns:
* zero if value is in range and is set
* -EINVAL if value was out of range
**/
static int
lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val)
{
const struct cpumask *aff_mask;
if (phba->cfg_use_msi != 2) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"8532 use_msi = %u ignoring cfg_irq_numa\n",
phba->cfg_use_msi);
phba->irq_chann_mode = NORMAL_MODE;
phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
return 0;
}
/* Check if default setting was passed */
if (val == LPFC_IRQ_CHANN_DEF &&
phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF &&
phba->sli_rev == LPFC_SLI_REV4)
lpfc_assign_default_irq_chann(phba);
if (phba->irq_chann_mode != NORMAL_MODE) {
aff_mask = &phba->sli4_hba.irq_aff_mask;
if (cpumask_empty(aff_mask)) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"8533 Could not identify CPUS for "
"mode %d, ignoring\n",
phba->irq_chann_mode);
phba->irq_chann_mode = NORMAL_MODE;
phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
} else {
phba->cfg_irq_chann = cpumask_weight(aff_mask);
/* If no hyperthread mode, then set hdwq count to
* aff_mask weight as well
*/
if (phba->irq_chann_mode == NHT_MODE)
phba->cfg_hdw_queue = phba->cfg_irq_chann;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"8543 lpfc_irq_chann set to %u "
"(mode: %d)\n", phba->cfg_irq_chann,
phba->irq_chann_mode);
}
} else {
if (val > LPFC_IRQ_CHANN_MAX) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"8545 lpfc_irq_chann attribute cannot "
"be set to %u, allowed range is "
"[%u,%u]\n",
val,
LPFC_IRQ_CHANN_MIN,
LPFC_IRQ_CHANN_MAX);
phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
return -EINVAL;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
phba->cfg_irq_chann = val;
} else {
phba->cfg_irq_chann = 2;
phba->cfg_hdw_queue = 1;
}
}
return 0;
}
/**
* lpfc_irq_chann_show - Display value of irq_chann
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains a string with the list sizes
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann);
}
static DEVICE_ATTR_RO(lpfc_irq_chann);
/*
# lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
# 0 = HBA resets disabled
# 1 = HBA resets enabled (default)
# 2 = HBA reset via PCI bus reset enabled
# Value range is [0,2]. Default value is 1.
*/
LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver.");
/*
# lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
# 0 = HBA Heartbeat disabled
# 1 = HBA Heartbeat enabled (default)
# Value range is [0,1]. Default value is 1.
*/
LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
/*
# lpfc_EnableXLane: Enable Express Lane Feature
# 0x0 Express Lane Feature disabled
# 0x1 Express Lane Feature enabled
# Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
/*
# lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
# 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
# Value range is [0x0,0x7f]. Default value is 0
*/
LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
/*
# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
# 0 = BlockGuard disabled (default)
# 1 = BlockGuard enabled
# Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
/*
# lpfc_prot_mask:
# - Bit mask of host protection capabilities used to register with the
# SCSI mid-layer
# - Only meaningful if BG is turned on (lpfc_enable_bg=1).
# - Allows you to ultimately specify which profiles to use
# - Default will result in registering capabilities for all profiles.
# - SHOST_DIF_TYPE1_PROTECTION 1
# HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
# - SHOST_DIX_TYPE0_PROTECTION 8
# HBA supports DIX Type 0: Host to HBA protection only
# - SHOST_DIX_TYPE1_PROTECTION 16
# HBA supports DIX Type 1: Host to HBA Type 1 protection
#
*/
LPFC_ATTR(prot_mask,
(SHOST_DIF_TYPE1_PROTECTION |
SHOST_DIX_TYPE0_PROTECTION |
SHOST_DIX_TYPE1_PROTECTION),
0,
(SHOST_DIF_TYPE1_PROTECTION |
SHOST_DIX_TYPE0_PROTECTION |
SHOST_DIX_TYPE1_PROTECTION),
"T10-DIF host protection capabilities mask");
/*
# lpfc_prot_guard:
# - Bit mask of protection guard types to register with the SCSI mid-layer
# - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
# - Allows you to ultimately specify which profiles to use
# - Default will result in registering capabilities for all guard types
#
*/
LPFC_ATTR(prot_guard,
SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP,
"T10-DIF host protection guard type");
/*
* Delay initial NPort discovery when Clean Address bit is cleared in
* FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
* This parameter can have value 0 or 1.
* When this parameter is set to 0, no delay is added to the initial
* discovery.
* When this parameter is set to non-zero value, initial Nport discovery is
* delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
* accept and FCID/Fabric name/Fabric portname is changed.
* Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
* when Clean Address bit is cleared in FLOGI/FDISC
* accept and FCID/Fabric name/Fabric portname is changed.
* Default value is 0.
*/
LPFC_ATTR(delay_discovery, 0, 0, 1,
"Delay NPort discovery when Clean Address bit is cleared.");
/*
* lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
* This value can be set to values between 64 and 4096. The default value
* is 64, but may be increased to allow for larger Max I/O sizes. The scsi
* and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE).
* Because of the additional overhead involved in setting up T10-DIF,
* this parameter will be limited to 128 if BlockGuard is enabled under SLI4
* and will be limited to 512 if BlockGuard is enabled under SLI3.
*/
static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
module_param(lpfc_sg_seg_cnt, uint, 0444);
MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count");
/**
* lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes
* configured for the adapter
* @dev: class converted to a Scsi_host structure.
* @attr: device attribute, not used.
* @buf: on return contains a string with the list sizes
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int len;
len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n",
phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt);
len += scnprintf(buf + len, PAGE_SIZE - len,
"Cfg: %d SCSI: %d NVME: %d\n",
phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt,
phba->cfg_nvme_seg_cnt);
return len;
}
static DEVICE_ATTR_RO(lpfc_sg_seg_cnt);
/**
* lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value
* @phba: lpfc_hba pointer.
* @val: contains the initial value
*
* Description:
* Validates the initial value is within range and assigns it to the
* adapter. If not in range, an error message is posted and the
* default value is assigned.
*
* Returns:
* zero if value is in range and is set
* -EINVAL if value was out of range
**/
static int
lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val)
{
if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) {
phba->cfg_sg_seg_cnt = val;
return 0;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0409 lpfc_sg_seg_cnt attribute cannot be set to %d, "
"allowed range is [%d, %d]\n",
val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT);
phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
return -EINVAL;
}
/*
* lpfc_enable_mds_diags: Enable MDS Diagnostics
* 0 = MDS Diagnostics disabled (default)
* 1 = MDS Diagnostics enabled
* Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
/*
* lpfc_ras_fwlog_buffsize: Firmware logging host buffer size
* 0 = Disable firmware logging (default)
* [1-4] = Multiple of 1/4th Mb of host memory for FW logging
* Value range [0..4]. Default value is 0
*/
LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging");
lpfc_param_show(ras_fwlog_buffsize);
static ssize_t
lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val)
{
int ret = 0;
enum ras_state state;
if (!lpfc_rangecheck(val, 0, 4))
return -EINVAL;
if (phba->cfg_ras_fwlog_buffsize == val)
return 0;
if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn))
return -EINVAL;
spin_lock_irq(&phba->hbalock);
state = phba->ras_fwlog.state;
spin_unlock_irq(&phba->hbalock);
if (state == REG_INPROGRESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging "
"registration is in progress\n");
return -EBUSY;
}
/* For disable logging: stop the logs and free the DMA.
* For ras_fwlog_buffsize size change we still need to free and
* reallocate the DMA in lpfc_sli4_ras_fwlog_init.
*/
phba->cfg_ras_fwlog_buffsize = val;
if (state == ACTIVE) {
lpfc_ras_stop_fwlog(phba);
lpfc_sli4_ras_dma_free(phba);
}
lpfc_sli4_ras_init(phba);
if (phba->ras_fwlog.ras_enabled)
ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
LPFC_RAS_ENABLE_LOGGING);
return ret;
}
lpfc_param_store(ras_fwlog_buffsize);
static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize);
/*
* lpfc_ras_fwlog_level: Firmware logging verbosity level
* Valid only if firmware logging is enabled
* 0(Least Verbosity) 4 (most verbosity)
* Value range is [0..4]. Default value is 0
*/
LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level");
/*
* lpfc_ras_fwlog_func: Firmware logging enabled on function number
* Default function which has RAS support : 0
* Value Range is [0..7].
* FW logging is a global action and enablement is via a specific
* port.
*/
LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function");
/*
* lpfc_enable_bbcr: Enable BB Credit Recovery
* 0 = BB Credit Recovery disabled
* 1 = BB Credit Recovery enabled (default)
* Value range is [0,1]. Default value is 1.
*/
LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery");
/* Signaling module parameters */
int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */
module_param(lpfc_fabric_cgn_frequency, int, 0444);
MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq");
unsigned char lpfc_acqe_cgn_frequency = 10; /* 10 sec default */
module_param(lpfc_acqe_cgn_frequency, byte, 0444);
MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq");
int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */
module_param(lpfc_use_cgn_signal, int, 0444);
MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available");
/*
* lpfc_enable_dpp: Enable DPP on G7
* 0 = DPP on G7 disabled
* 1 = DPP on G7 enabled (default)
* Value range is [0,1]. Default value is 1.
*/
LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push");
/*
* lpfc_enable_mi: Enable FDMI MIB
* 0 = disabled
* 1 = enabled (default)
* Value range is [0,1].
*/
LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI");
/*
* lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if
* either vmid_app_header or vmid_priority_tagging is enabled.
* 4 - 255 = vmid support enabled for 4-255 VMs
* Value range is [4,255].
*/
LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID,
"Maximum number of VMs supported");
/*
* lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours
* 0 = Timeout is disabled
* Value range is [0,24].
*/
LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24,
"Inactivity timeout in hours");
/*
* lpfc_vmid_app_header: Enable App Header VMID support
* 0 = Support is disabled (default)
* 1 = Support is enabled
* Value range is [0,1].
*/
LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE,
LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE,
"Enable App Header VMID support");
/*
* lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support
* 0 = Support is disabled (default)
* 1 = Allow supported targets only
* 2 = Allow all targets
* Value range is [0,2].
*/
LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE,
LPFC_VMID_PRIO_TAG_DISABLE,
LPFC_VMID_PRIO_TAG_ALL_TARGETS,
"Enable Priority Tagging VMID support");
static struct attribute *lpfc_hba_attrs[] = {
&dev_attr_nvme_info.attr,
&dev_attr_scsi_stat.attr,
&dev_attr_bg_info.attr,
&dev_attr_bg_guard_err.attr,
&dev_attr_bg_apptag_err.attr,
&dev_attr_bg_reftag_err.attr,
&dev_attr_info.attr,
&dev_attr_serialnum.attr,
&dev_attr_modeldesc.attr,
&dev_attr_modelname.attr,
&dev_attr_programtype.attr,
&dev_attr_portnum.attr,
&dev_attr_fwrev.attr,
&dev_attr_hdw.attr,
&dev_attr_option_rom_version.attr,
&dev_attr_link_state.attr,
&dev_attr_num_discovered_ports.attr,
&dev_attr_lpfc_drvr_version.attr,
&dev_attr_lpfc_enable_fip.attr,
&dev_attr_lpfc_temp_sensor.attr,
&dev_attr_lpfc_log_verbose.attr,
&dev_attr_lpfc_lun_queue_depth.attr,
&dev_attr_lpfc_tgt_queue_depth.attr,
&dev_attr_lpfc_hba_queue_depth.attr,
&dev_attr_lpfc_peer_port_login.attr,
&dev_attr_lpfc_nodev_tmo.attr,
&dev_attr_lpfc_devloss_tmo.attr,
&dev_attr_lpfc_enable_fc4_type.attr,
&dev_attr_lpfc_fcp_class.attr,
&dev_attr_lpfc_use_adisc.attr,
&dev_attr_lpfc_first_burst_size.attr,
&dev_attr_lpfc_ack0.attr,
&dev_attr_lpfc_xri_rebalancing.attr,
&dev_attr_lpfc_topology.attr,
&dev_attr_lpfc_scan_down.attr,
&dev_attr_lpfc_link_speed.attr,
&dev_attr_lpfc_fcp_io_sched.attr,
&dev_attr_lpfc_ns_query.attr,
&dev_attr_lpfc_fcp2_no_tgt_reset.attr,
&dev_attr_lpfc_cr_delay.attr,
&dev_attr_lpfc_cr_count.attr,
&dev_attr_lpfc_multi_ring_support.attr,
&dev_attr_lpfc_multi_ring_rctl.attr,
&dev_attr_lpfc_multi_ring_type.attr,
&dev_attr_lpfc_fdmi_on.attr,
&dev_attr_lpfc_enable_SmartSAN.attr,
&dev_attr_lpfc_max_luns.attr,
&dev_attr_lpfc_enable_npiv.attr,
&dev_attr_lpfc_fcf_failover_policy.attr,
&dev_attr_lpfc_enable_rrq.attr,
&dev_attr_lpfc_fcp_wait_abts_rsp.attr,
&dev_attr_nport_evt_cnt.attr,
&dev_attr_board_mode.attr,
&dev_attr_lpfc_xcvr_data.attr,
&dev_attr_max_vpi.attr,
&dev_attr_used_vpi.attr,
&dev_attr_max_rpi.attr,
&dev_attr_used_rpi.attr,
&dev_attr_max_xri.attr,
&dev_attr_used_xri.attr,
&dev_attr_npiv_info.attr,
&dev_attr_issue_reset.attr,
&dev_attr_lpfc_poll.attr,
&dev_attr_lpfc_poll_tmo.attr,
&dev_attr_lpfc_task_mgmt_tmo.attr,
&dev_attr_lpfc_use_msi.attr,
&dev_attr_lpfc_nvme_oas.attr,
&dev_attr_lpfc_nvme_embed_cmd.attr,
&dev_attr_lpfc_fcp_imax.attr,
&dev_attr_lpfc_force_rscn.attr,
&dev_attr_lpfc_cq_poll_threshold.attr,
&dev_attr_lpfc_cq_max_proc_limit.attr,
&dev_attr_lpfc_fcp_cpu_map.attr,
&dev_attr_lpfc_fcp_mq_threshold.attr,
&dev_attr_lpfc_hdw_queue.attr,
&dev_attr_lpfc_irq_chann.attr,
&dev_attr_lpfc_suppress_rsp.attr,
&dev_attr_lpfc_nvmet_mrq.attr,
&dev_attr_lpfc_nvmet_mrq_post.attr,
&dev_attr_lpfc_nvme_enable_fb.attr,
&dev_attr_lpfc_nvmet_fb_size.attr,
&dev_attr_lpfc_enable_bg.attr,
&dev_attr_lpfc_enable_hba_reset.attr,
&dev_attr_lpfc_enable_hba_heartbeat.attr,
&dev_attr_lpfc_EnableXLane.attr,
&dev_attr_lpfc_XLanePriority.attr,
&dev_attr_lpfc_xlane_lun.attr,
&dev_attr_lpfc_xlane_tgt.attr,
&dev_attr_lpfc_xlane_vpt.attr,
&dev_attr_lpfc_xlane_lun_state.attr,
&dev_attr_lpfc_xlane_lun_status.attr,
&dev_attr_lpfc_xlane_priority.attr,
&dev_attr_lpfc_sg_seg_cnt.attr,
&dev_attr_lpfc_max_scsicmpl_time.attr,
&dev_attr_lpfc_aer_support.attr,
&dev_attr_lpfc_aer_state_cleanup.attr,
&dev_attr_lpfc_sriov_nr_virtfn.attr,
&dev_attr_lpfc_req_fw_upgrade.attr,
&dev_attr_lpfc_suppress_link_up.attr,
&dev_attr_iocb_hw.attr,
&dev_attr_pls.attr,
&dev_attr_pt.attr,
&dev_attr_txq_hw.attr,
&dev_attr_txcmplq_hw.attr,
&dev_attr_lpfc_sriov_hw_max_virtfn.attr,
&dev_attr_protocol.attr,
&dev_attr_lpfc_xlane_supported.attr,
&dev_attr_lpfc_enable_mds_diags.attr,
&dev_attr_lpfc_ras_fwlog_buffsize.attr,
&dev_attr_lpfc_ras_fwlog_level.attr,
&dev_attr_lpfc_ras_fwlog_func.attr,
&dev_attr_lpfc_enable_bbcr.attr,
&dev_attr_lpfc_enable_dpp.attr,
&dev_attr_lpfc_enable_mi.attr,
&dev_attr_cmf_info.attr,
&dev_attr_lpfc_max_vmid.attr,
&dev_attr_lpfc_vmid_inactivity_timeout.attr,
&dev_attr_lpfc_vmid_app_header.attr,
&dev_attr_lpfc_vmid_priority_tagging.attr,
NULL,
};
static const struct attribute_group lpfc_hba_attr_group = {
.attrs = lpfc_hba_attrs
};
const struct attribute_group *lpfc_hba_groups[] = {
&lpfc_hba_attr_group,
NULL
};
static struct attribute *lpfc_vport_attrs[] = {
&dev_attr_info.attr,
&dev_attr_link_state.attr,
&dev_attr_num_discovered_ports.attr,
&dev_attr_lpfc_drvr_version.attr,
&dev_attr_lpfc_log_verbose.attr,
&dev_attr_lpfc_lun_queue_depth.attr,
&dev_attr_lpfc_tgt_queue_depth.attr,
&dev_attr_lpfc_nodev_tmo.attr,
&dev_attr_lpfc_devloss_tmo.attr,
&dev_attr_lpfc_hba_queue_depth.attr,
&dev_attr_lpfc_peer_port_login.attr,
&dev_attr_lpfc_restrict_login.attr,
&dev_attr_lpfc_fcp_class.attr,
&dev_attr_lpfc_use_adisc.attr,
&dev_attr_lpfc_first_burst_size.attr,
&dev_attr_lpfc_max_luns.attr,
&dev_attr_nport_evt_cnt.attr,
&dev_attr_npiv_info.attr,
&dev_attr_lpfc_enable_da_id.attr,
&dev_attr_lpfc_max_scsicmpl_time.attr,
&dev_attr_lpfc_static_vport.attr,
&dev_attr_cmf_info.attr,
NULL,
};
static const struct attribute_group lpfc_vport_attr_group = {
.attrs = lpfc_vport_attrs
};
const struct attribute_group *lpfc_vport_groups[] = {
&lpfc_vport_attr_group,
NULL
};
/**
* sysfs_ctlreg_write - Write method for writing to ctlreg
* @filp: open sysfs file
* @kobj: kernel kobject that contains the kernel class device.
* @bin_attr: kernel attributes passed to us.
* @buf: contains the data to be written to the adapter IOREG space.
* @off: offset into buffer to beginning of data.
* @count: bytes to transfer.
*
* Description:
* Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
* Uses the adapter io control registers to send buf contents to the adapter.
*
* Returns:
* -ERANGE off and count combo out of range
* -EINVAL off, count or buff address invalid
* -EPERM adapter is offline
* value of count, buf contents written
**/
static ssize_t
sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
size_t buf_off;
struct device *dev = container_of(kobj, struct device, kobj);
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
if (phba->sli_rev >= LPFC_SLI_REV4)
return -EPERM;
if ((off + count) > FF_REG_AREA_SIZE)
return -ERANGE;
if (count <= LPFC_REG_WRITE_KEY_SIZE)
return 0;
if (off % 4 || count % 4 || (unsigned long)buf % 4)
return -EINVAL;
/* This is to protect HBA registers from accidental writes. */
if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
return -EINVAL;
if (!(vport->fc_flag & FC_OFFLINE_MODE))
return -EPERM;
spin_lock_irq(&phba->hbalock);
for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
buf_off += sizeof(uint32_t))
writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
phba->ctrl_regs_memmap_p + off + buf_off);
spin_unlock_irq(&phba->hbalock);
return count;
}
/**
* sysfs_ctlreg_read - Read method for reading from ctlreg
* @filp: open sysfs file
* @kobj: kernel kobject that contains the kernel class device.
* @bin_attr: kernel attributes passed to us.
* @buf: if successful contains the data from the adapter IOREG space.
* @off: offset into buffer to beginning of data.
* @count: bytes to transfer.
*
* Description:
* Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
* Uses the adapter io control registers to read data into buf.
*
* Returns:
* -ERANGE off and count combo out of range
* -EINVAL off, count or buff address invalid
* value of count, buf contents read
**/
static ssize_t
sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
size_t buf_off;
uint32_t * tmp_ptr;
struct device *dev = container_of(kobj, struct device, kobj);
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
if (phba->sli_rev >= LPFC_SLI_REV4)
return -EPERM;
if (off > FF_REG_AREA_SIZE)
return -ERANGE;
if ((off + count) > FF_REG_AREA_SIZE)
count = FF_REG_AREA_SIZE - off;
if (count == 0) return 0;
if (off % 4 || count % 4 || (unsigned long)buf % 4)
return -EINVAL;
spin_lock_irq(&phba->hbalock);
for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
tmp_ptr = (uint32_t *)(buf + buf_off);
*tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
}
spin_unlock_irq(&phba->hbalock);
return count;
}
static struct bin_attribute sysfs_ctlreg_attr = {
.attr = {
.name = "ctlreg",
.mode = S_IRUSR | S_IWUSR,
},
.size = 256,
.read = sysfs_ctlreg_read,
.write = sysfs_ctlreg_write,
};
/**
* sysfs_mbox_write - Write method for writing information via mbox
* @filp: open sysfs file
* @kobj: kernel kobject that contains the kernel class device.
* @bin_attr: kernel attributes passed to us.
* @buf: contains the data to be written to sysfs mbox.
* @off: offset into buffer to beginning of data.
* @count: bytes to transfer.
*
* Description:
* Deprecated function. All mailbox access from user space is performed via the
* bsg interface.
*
* Returns:
* -EPERM operation not permitted
**/
static ssize_t
sysfs_mbox_write(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
return -EPERM;
}
/**
* sysfs_mbox_read - Read method for reading information via mbox
* @filp: open sysfs file
* @kobj: kernel kobject that contains the kernel class device.
* @bin_attr: kernel attributes passed to us.
* @buf: contains the data to be read from sysfs mbox.
* @off: offset into buffer to beginning of data.
* @count: bytes to transfer.
*
* Description:
* Deprecated function. All mailbox access from user space is performed via the
* bsg interface.
*
* Returns:
* -EPERM operation not permitted
**/
static ssize_t
sysfs_mbox_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
return -EPERM;
}
static struct bin_attribute sysfs_mbox_attr = {
.attr = {
.name = "mbox",
.mode = S_IRUSR | S_IWUSR,
},
.size = MAILBOX_SYSFS_MAX,
.read = sysfs_mbox_read,
.write = sysfs_mbox_write,
};
/**
* lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
* @vport: address of lpfc vport structure.
*
* Return codes:
* zero on success
* error return code from sysfs_create_bin_file()
**/
int
lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
int error;
/* Virtual ports do not need ctrl_reg and mbox */
if (vport->port_type == LPFC_NPIV_PORT)
return 0;
error = sysfs_create_bin_file(&shost->shost_dev.kobj,
&sysfs_ctlreg_attr);
if (error)
goto out;
error = sysfs_create_bin_file(&shost->shost_dev.kobj,
&sysfs_mbox_attr);
if (error)
goto out_remove_ctlreg_attr;
return 0;
out_remove_ctlreg_attr:
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
out:
return error;
}
/**
* lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
* @vport: address of lpfc vport structure.
**/
void
lpfc_free_sysfs_attr(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
/* Virtual ports do not need ctrl_reg and mbox */
if (vport->port_type == LPFC_NPIV_PORT)
return;
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
}
/*
* Dynamic FC Host Attributes Support
*/
/**
* lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host
* @shost: kernel scsi host pointer.
**/
static void
lpfc_get_host_symbolic_name(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
sizeof fc_host_symbolic_name(shost));
}
/**
* lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
* @shost: kernel scsi host pointer.
**/
static void
lpfc_get_host_port_id(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
/* note: fc_myDID already in cpu endianness */
fc_host_port_id(shost) = vport->fc_myDID;
}
/**
* lpfc_get_host_port_type - Set the value of the scsi host port type
* @shost: kernel scsi host pointer.
**/
static void
lpfc_get_host_port_type(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
spin_lock_irq(shost->host_lock);
if (vport->port_type == LPFC_NPIV_PORT) {
fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
} else if (lpfc_is_link_up(phba)) {
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
if (vport->fc_flag & FC_PUBLIC_LOOP)
fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
else
fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
} else {
if (vport->fc_flag & FC_FABRIC)
fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
else
fc_host_port_type(shost) = FC_PORTTYPE_PTP;
}
} else
fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
spin_unlock_irq(shost->host_lock);
}
/**
* lpfc_get_host_port_state - Set the value of the scsi host port state
* @shost: kernel scsi host pointer.
**/
static void
lpfc_get_host_port_state(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
spin_lock_irq(shost->host_lock);
if (vport->fc_flag & FC_OFFLINE_MODE)
fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
else {
switch (phba->link_state) {
case LPFC_LINK_UNKNOWN:
case LPFC_LINK_DOWN:
fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
break;
case LPFC_LINK_UP:
case LPFC_CLEAR_LA:
case LPFC_HBA_READY:
/* Links up, reports port state accordingly */
if (vport->port_state < LPFC_VPORT_READY)
fc_host_port_state(shost) =
FC_PORTSTATE_BYPASSED;
else
fc_host_port_state(shost) =
FC_PORTSTATE_ONLINE;
break;
case LPFC_HBA_ERROR:
fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
break;
default:
fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
break;
}
}
spin_unlock_irq(shost->host_lock);
}
/**
* lpfc_get_host_speed - Set the value of the scsi host speed
* @shost: kernel scsi host pointer.
**/
static void
lpfc_get_host_speed(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
spin_lock_irq(shost->host_lock);
if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) {
switch(phba->fc_linkspeed) {
case LPFC_LINK_SPEED_1GHZ:
fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
break;
case LPFC_LINK_SPEED_2GHZ:
fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
break;
case LPFC_LINK_SPEED_4GHZ:
fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
break;
case LPFC_LINK_SPEED_8GHZ:
fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
break;
case LPFC_LINK_SPEED_10GHZ:
fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
break;
case LPFC_LINK_SPEED_16GHZ:
fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
break;
case LPFC_LINK_SPEED_32GHZ:
fc_host_speed(shost) = FC_PORTSPEED_32GBIT;
break;
case LPFC_LINK_SPEED_64GHZ:
fc_host_speed(shost) = FC_PORTSPEED_64GBIT;
break;
case LPFC_LINK_SPEED_128GHZ:
fc_host_speed(shost) = FC_PORTSPEED_128GBIT;
break;
case LPFC_LINK_SPEED_256GHZ:
fc_host_speed(shost) = FC_PORTSPEED_256GBIT;
break;
default:
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
break;
}
} else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) {
switch (phba->fc_linkspeed) {
case LPFC_ASYNC_LINK_SPEED_1GBPS:
fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
break;
case LPFC_ASYNC_LINK_SPEED_10GBPS:
fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
break;
case LPFC_ASYNC_LINK_SPEED_20GBPS:
fc_host_speed(shost) = FC_PORTSPEED_20GBIT;
break;
case LPFC_ASYNC_LINK_SPEED_25GBPS:
fc_host_speed(shost) = FC_PORTSPEED_25GBIT;
break;
case LPFC_ASYNC_LINK_SPEED_40GBPS:
fc_host_speed(shost) = FC_PORTSPEED_40GBIT;
break;
case LPFC_ASYNC_LINK_SPEED_100GBPS:
fc_host_speed(shost) = FC_PORTSPEED_100GBIT;
break;
default:
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
break;
}
} else
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
spin_unlock_irq(shost->host_lock);
}
/**
* lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
* @shost: kernel scsi host pointer.
**/
static void
lpfc_get_host_fabric_name (struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
u64 node_name;
spin_lock_irq(shost->host_lock);
if ((vport->port_state > LPFC_FLOGI) &&
((vport->fc_flag & FC_FABRIC) ||
((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
(vport->fc_flag & FC_PUBLIC_LOOP))))
node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
else
/* fabric is local port if there is no F/FL_Port */
node_name = 0;
spin_unlock_irq(shost->host_lock);
fc_host_fabric_name(shost) = node_name;
}
/**
* lpfc_get_stats - Return statistical information about the adapter
* @shost: kernel scsi host pointer.
*
* Notes:
* NULL on error for link down, no mbox pool, sli2 active,
* management not allowed, memory allocation error, or mbox error.
*
* Returns:
* NULL for error
* address of the adapter host statistics
**/
static struct fc_host_statistics *
lpfc_get_stats(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli *psli = &phba->sli;
struct fc_host_statistics *hs = &phba->link_stats;
struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
LPFC_MBOXQ_t *pmboxq;
MAILBOX_t *pmb;
int rc = 0;
/*
* prevent udev from issuing mailbox commands until the port is
* configured.
*/
if (phba->link_state < LPFC_LINK_DOWN ||
!phba->mbox_mem_pool ||
(phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
return NULL;
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
return NULL;
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq)
return NULL;
memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
pmb = &pmboxq->u.mb;
pmb->mbxCommand = MBX_READ_STATUS;
pmb->mbxOwner = OWN_HOST;
pmboxq->ctx_buf = NULL;
pmboxq->vport = vport;
if (vport->fc_flag & FC_OFFLINE_MODE) {
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
mempool_free(pmboxq, phba->mbox_mem_pool);
return NULL;
}
} else {
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
if (rc != MBX_SUCCESS) {
if (rc != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
return NULL;
}
}
memset(hs, 0, sizeof (struct fc_host_statistics));
hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
/*
* The MBX_READ_STATUS returns tx_k_bytes which has to be
* converted to words.
*
* Check if extended byte flag is set, to know when to collect upper
* bits of 64 bit wide statistics counter.
*/
if (pmb->un.varRdStatus.xkb & RD_ST_XKB) {
hs->tx_words = (u64)
((((u64)(pmb->un.varRdStatus.xmit_xkb &
RD_ST_XMIT_XKB_MASK) << 32) |
(u64)pmb->un.varRdStatus.xmitByteCnt) *
(u64)256);
hs->rx_words = (u64)
((((u64)(pmb->un.varRdStatus.rcv_xkb &
RD_ST_RCV_XKB_MASK) << 32) |
(u64)pmb->un.varRdStatus.rcvByteCnt) *
(u64)256);
} else {
hs->tx_words = (uint64_t)
((uint64_t)pmb->un.varRdStatus.xmitByteCnt
* (uint64_t)256);
hs->rx_words = (uint64_t)
((uint64_t)pmb->un.varRdStatus.rcvByteCnt
* (uint64_t)256);
}
memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
pmb->mbxCommand = MBX_READ_LNK_STAT;
pmb->mbxOwner = OWN_HOST;
pmboxq->ctx_buf = NULL;
pmboxq->vport = vport;
if (vport->fc_flag & FC_OFFLINE_MODE) {
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
mempool_free(pmboxq, phba->mbox_mem_pool);
return NULL;
}
} else {
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
if (rc != MBX_SUCCESS) {
if (rc != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
return NULL;
}
}
hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
hs->error_frames = pmb->un.varRdLnk.crcCnt;
hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn);
hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm);
hs->link_failure_count -= lso->link_failure_count;
hs->loss_of_sync_count -= lso->loss_of_sync_count;
hs->loss_of_signal_count -= lso->loss_of_signal_count;
hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
hs->invalid_crc_count -= lso->invalid_crc_count;
hs->error_frames -= lso->error_frames;
if (phba->hba_flag & HBA_FCOE_MODE) {
hs->lip_count = -1;
hs->nos_count = (phba->link_events >> 1);
hs->nos_count -= lso->link_events;
} else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
hs->lip_count = (phba->fc_eventTag >> 1);
hs->lip_count -= lso->link_events;
hs->nos_count = -1;
} else {
hs->lip_count = -1;
hs->nos_count = (phba->fc_eventTag >> 1);
hs->nos_count -= lso->link_events;
}
hs->dumped_frames = -1;
hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start;
mempool_free(pmboxq, phba->mbox_mem_pool);
return hs;
}
/**
* lpfc_reset_stats - Copy the adapter link stats information
* @shost: kernel scsi host pointer.
**/
static void
lpfc_reset_stats(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
LPFC_MBOXQ_t *pmboxq;
MAILBOX_t *pmb;
int rc = 0;
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
return;
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq)
return;
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
pmb = &pmboxq->u.mb;
pmb->mbxCommand = MBX_READ_STATUS;
pmb->mbxOwner = OWN_HOST;
pmb->un.varWords[0] = 0x1; /* reset request */
pmboxq->ctx_buf = NULL;
pmboxq->vport = vport;
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
(!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
} else {
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
if (rc != MBX_SUCCESS) {
if (rc != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
}
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
pmb->mbxCommand = MBX_READ_LNK_STAT;
pmb->mbxOwner = OWN_HOST;
pmboxq->ctx_buf = NULL;
pmboxq->vport = vport;
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
(!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
} else {
rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
if (rc != MBX_SUCCESS) {
if (rc != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
}
lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
lso->error_frames = pmb->un.varRdLnk.crcCnt;
if (phba->hba_flag & HBA_FCOE_MODE)
lso->link_events = (phba->link_events >> 1);
else
lso->link_events = (phba->fc_eventTag >> 1);
atomic64_set(&phba->cgn_acqe_stat.warn, 0);
atomic64_set(&phba->cgn_acqe_stat.alarm, 0);
memset(&shost_to_fc_host(shost)->fpin_stats, 0,
sizeof(shost_to_fc_host(shost)->fpin_stats));
psli->stats_start = ktime_get_seconds();
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
/*
* The LPFC driver treats linkdown handling as target loss events so there
* are no sysfs handlers for link_down_tmo.
*/
/**
* lpfc_get_node_by_target - Return the nodelist for a target
* @starget: kernel scsi target pointer.
*
* Returns:
* address of the node list if found
* NULL target not found
**/
static struct lpfc_nodelist *
lpfc_get_node_by_target(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_nodelist *ndlp;
spin_lock_irq(shost->host_lock);
/* Search for this, mapped, target ID */
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
starget->id == ndlp->nlp_sid) {
spin_unlock_irq(shost->host_lock);
return ndlp;
}
}
spin_unlock_irq(shost->host_lock);
return NULL;
}
/**
* lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
* @starget: kernel scsi target pointer.
**/
static void
lpfc_get_starget_port_id(struct scsi_target *starget)
{
struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
}
/**
* lpfc_get_starget_node_name - Set the target node name
* @starget: kernel scsi target pointer.
*
* Description: Set the target node name to the ndlp node name wwn or zero.
**/
static void
lpfc_get_starget_node_name(struct scsi_target *starget)
{
struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
fc_starget_node_name(starget) =
ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
}
/**
* lpfc_get_starget_port_name - Set the target port name
* @starget: kernel scsi target pointer.
*
* Description: set the target port name to the ndlp port name wwn or zero.
**/
static void
lpfc_get_starget_port_name(struct scsi_target *starget)
{
struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
fc_starget_port_name(starget) =
ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
}
/**
* lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
* @rport: fc rport address.
* @timeout: new value for dev loss tmo.
*
* Description:
* If timeout is non zero set the dev_loss_tmo to timeout, else set
* dev_loss_tmo to one.
**/
static void
lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
struct lpfc_rport_data *rdata = rport->dd_data;
struct lpfc_nodelist *ndlp = rdata->pnode;
#if (IS_ENABLED(CONFIG_NVME_FC))
struct lpfc_nvme_rport *nrport = NULL;
#endif
if (timeout)
rport->dev_loss_tmo = timeout;
else
rport->dev_loss_tmo = 1;
if (!ndlp) {
dev_info(&rport->dev, "Cannot find remote node to "
"set rport dev loss tmo, port_id x%x\n",
rport->port_id);
return;
}
#if (IS_ENABLED(CONFIG_NVME_FC))
nrport = lpfc_ndlp_get_nrport(ndlp);
if (nrport && nrport->remoteport)
nvme_fc_set_remoteport_devloss(nrport->remoteport,
rport->dev_loss_tmo);
#endif
}
/*
* lpfc_rport_show_function - Return rport target information
*
* Description:
* Macro that uses field to generate a function with the name lpfc_show_rport_
*
* lpfc_show_rport_##field: returns the bytes formatted in buf
* @cdev: class converted to an fc_rport.
* @buf: on return contains the target_field or zero.
*
* Returns: size of formatted string.
**/
#define lpfc_rport_show_function(field, format_string, sz, cast) \
static ssize_t \
lpfc_show_rport_##field (struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct fc_rport *rport = transport_class_to_rport(dev); \
struct lpfc_rport_data *rdata = rport->hostdata; \
return scnprintf(buf, sz, format_string, \
(rdata->target) ? cast rdata->target->field : 0); \
}
#define lpfc_rport_rd_attr(field, format_string, sz) \
lpfc_rport_show_function(field, format_string, sz, ) \
static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
/**
* lpfc_set_vport_symbolic_name - Set the vport's symbolic name
* @fc_vport: The fc_vport who's symbolic name has been changed.
*
* Description:
* This function is called by the transport after the @fc_vport's symbolic name
* has been changed. This function re-registers the symbolic name with the
* switch to propagate the change into the fabric if the vport is active.
**/
static void
lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
{
struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
if (vport->port_state == LPFC_VPORT_READY)
lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
}
/**
* lpfc_hba_log_verbose_init - Set hba's log verbose level
* @phba: Pointer to lpfc_hba struct.
* @verbose: Verbose level to set.
*
* This function is called by the lpfc_get_cfgparam() routine to set the
* module lpfc_log_verbose into the @phba cfg_log_verbose for use with
* log message according to the module's lpfc_log_verbose parameter setting
* before hba port or vport created.
**/
static void
lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
{
phba->cfg_log_verbose = verbose;
}
struct fc_function_template lpfc_transport_functions = {
/* fixed attributes the driver supports */
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.show_host_supported_fc4s = 1,
.show_host_supported_speeds = 1,
.show_host_maxframe_size = 1,
.get_host_symbolic_name = lpfc_get_host_symbolic_name,
.show_host_symbolic_name = 1,
/* dynamic attributes the driver supports */
.get_host_port_id = lpfc_get_host_port_id,
.show_host_port_id = 1,
.get_host_port_type = lpfc_get_host_port_type,
.show_host_port_type = 1,
.get_host_port_state = lpfc_get_host_port_state,
.show_host_port_state = 1,
/* active_fc4s is shown but doesn't change (thus no get function) */
.show_host_active_fc4s = 1,
.get_host_speed = lpfc_get_host_speed,
.show_host_speed = 1,
.get_host_fabric_name = lpfc_get_host_fabric_name,
.show_host_fabric_name = 1,
/*
* The LPFC driver treats linkdown handling as target loss events
* so there are no sysfs handlers for link_down_tmo.
*/
.get_fc_host_stats = lpfc_get_stats,
.reset_fc_host_stats = lpfc_reset_stats,
.dd_fcrport_size = sizeof(struct lpfc_rport_data),
.show_rport_maxframe_size = 1,
.show_rport_supported_classes = 1,
.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.get_starget_port_id = lpfc_get_starget_port_id,
.show_starget_port_id = 1,
.get_starget_node_name = lpfc_get_starget_node_name,
.show_starget_node_name = 1,
.get_starget_port_name = lpfc_get_starget_port_name,
.show_starget_port_name = 1,
.issue_fc_host_lip = lpfc_issue_lip,
.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
.terminate_rport_io = lpfc_terminate_rport_io,
.dd_fcvport_size = sizeof(struct lpfc_vport *),
.vport_disable = lpfc_vport_disable,
.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
.bsg_request = lpfc_bsg_request,
.bsg_timeout = lpfc_bsg_timeout,
};
struct fc_function_template lpfc_vport_transport_functions = {
/* fixed attributes the driver supports */
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.show_host_supported_fc4s = 1,
.show_host_supported_speeds = 1,
.show_host_maxframe_size = 1,
.get_host_symbolic_name = lpfc_get_host_symbolic_name,
.show_host_symbolic_name = 1,
/* dynamic attributes the driver supports */
.get_host_port_id = lpfc_get_host_port_id,
.show_host_port_id = 1,
.get_host_port_type = lpfc_get_host_port_type,
.show_host_port_type = 1,
.get_host_port_state = lpfc_get_host_port_state,
.show_host_port_state = 1,
/* active_fc4s is shown but doesn't change (thus no get function) */
.show_host_active_fc4s = 1,
.get_host_speed = lpfc_get_host_speed,
.show_host_speed = 1,
.get_host_fabric_name = lpfc_get_host_fabric_name,
.show_host_fabric_name = 1,
/*
* The LPFC driver treats linkdown handling as target loss events
* so there are no sysfs handlers for link_down_tmo.
*/
.get_fc_host_stats = lpfc_get_stats,
.reset_fc_host_stats = lpfc_reset_stats,
.dd_fcrport_size = sizeof(struct lpfc_rport_data),
.show_rport_maxframe_size = 1,
.show_rport_supported_classes = 1,
.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
.show_rport_dev_loss_tmo = 1,
.get_starget_port_id = lpfc_get_starget_port_id,
.show_starget_port_id = 1,
.get_starget_node_name = lpfc_get_starget_node_name,
.show_starget_node_name = 1,
.get_starget_port_name = lpfc_get_starget_port_name,
.show_starget_port_name = 1,
.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
.terminate_rport_io = lpfc_terminate_rport_io,
.vport_disable = lpfc_vport_disable,
.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
};
/**
* lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE
* Mode
* @phba: lpfc_hba pointer.
**/
static void
lpfc_get_hba_function_mode(struct lpfc_hba *phba)
{
/* If the adapter supports FCoE mode */
switch (phba->pcidev->device) {
case PCI_DEVICE_ID_SKYHAWK:
case PCI_DEVICE_ID_SKYHAWK_VF:
case PCI_DEVICE_ID_LANCER_FCOE:
case PCI_DEVICE_ID_LANCER_FCOE_VF:
case PCI_DEVICE_ID_ZEPHYR_DCSP:
case PCI_DEVICE_ID_TIGERSHARK:
case PCI_DEVICE_ID_TOMCAT:
phba->hba_flag |= HBA_FCOE_MODE;
break;
default:
/* for others, clear the flag */
phba->hba_flag &= ~HBA_FCOE_MODE;
}
}
/**
* lpfc_get_cfgparam - Used during probe_one to init the adapter structure
* @phba: lpfc_hba pointer.
**/
void
lpfc_get_cfgparam(struct lpfc_hba *phba)
{
lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
lpfc_ns_query_init(phba, lpfc_ns_query);
lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset);
lpfc_cr_delay_init(phba, lpfc_cr_delay);
lpfc_cr_count_init(phba, lpfc_cr_count);
lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
lpfc_ack0_init(phba, lpfc_ack0);
lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing);
lpfc_topology_init(phba, lpfc_topology);
lpfc_link_speed_init(phba, lpfc_link_speed);
lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp);
lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN);
lpfc_use_msi_init(phba, lpfc_use_msi);
lpfc_nvme_oas_init(phba, lpfc_nvme_oas);
lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd);
lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
lpfc_force_rscn_init(phba, lpfc_force_rscn);
lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold);
lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit);
lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
/* VMID Inits */
lpfc_max_vmid_init(phba, lpfc_max_vmid);
lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout);
lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header);
lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging);
if (phba->sli_rev != LPFC_SLI_REV4)
phba->cfg_EnableXLane = 0;
lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
phba->cfg_oas_lun_state = 0;
phba->cfg_oas_lun_status = 0;
phba->cfg_oas_flags = 0;
phba->cfg_oas_priority = 0;
lpfc_enable_bg_init(phba, lpfc_enable_bg);
lpfc_prot_mask_init(phba, lpfc_prot_mask);
lpfc_prot_guard_init(phba, lpfc_prot_guard);
if (phba->sli_rev == LPFC_SLI_REV4)
phba->cfg_poll = 0;
else
phba->cfg_poll = lpfc_poll;
/* Get the function mode */
lpfc_get_hba_function_mode(phba);
/* BlockGuard allowed for FC only. */
if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0581 BlockGuard feature not supported\n");
/* If set, clear the BlockGuard support param */
phba->cfg_enable_bg = 0;
} else if (phba->cfg_enable_bg) {
phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
}
lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp);
lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type);
lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq);
lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post);
/* Initialize first burst. Target vs Initiator are different. */
lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb);
lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size);
lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold);
lpfc_hdw_queue_init(phba, lpfc_hdw_queue);
lpfc_irq_chann_init(phba, lpfc_irq_chann);
lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr);
lpfc_enable_dpp_init(phba, lpfc_enable_dpp);
lpfc_enable_mi_init(phba, lpfc_enable_mi);
phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF;
phba->cmf_active_mode = LPFC_CFG_OFF;
if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX ||
lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN)
lpfc_fabric_cgn_frequency = 100; /* 100 ms default */
if (phba->sli_rev != LPFC_SLI_REV4) {
/* NVME only supported on SLI4 */
phba->nvmet_support = 0;
phba->cfg_nvmet_mrq = 0;
phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
phba->cfg_enable_bbcr = 0;
phba->cfg_xri_rebalancing = 0;
} else {
/* We MUST have FCP support */
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP;
}
phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1;
phba->cfg_enable_pbde = 0;
/* A value of 0 means use the number of CPUs found in the system */
if (phba->cfg_hdw_queue == 0)
phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu;
if (phba->cfg_irq_chann == 0)
phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu;
if (phba->cfg_irq_chann > phba->cfg_hdw_queue &&
phba->sli_rev == LPFC_SLI_REV4)
phba->cfg_irq_chann = phba->cfg_hdw_queue;
lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade);
lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
lpfc_delay_discovery_init(phba, lpfc_delay_discovery);
lpfc_sli_mode_init(phba, lpfc_sli_mode);
lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags);
lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize);
lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level);
lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func);
return;
}
/**
* lpfc_nvme_mod_param_dep - Adjust module parameter value based on
* dependencies between protocols and roles.
* @phba: lpfc_hba pointer.
**/
void
lpfc_nvme_mod_param_dep(struct lpfc_hba *phba)
{
int logit = 0;
if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) {
phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu;
logit = 1;
}
if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) {
phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu;
logit = 1;
}
if (phba->cfg_irq_chann > phba->cfg_hdw_queue) {
phba->cfg_irq_chann = phba->cfg_hdw_queue;
logit = 1;
}
if (logit)
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"2006 Reducing Queues - CPU limitation: "
"IRQ %d HDWQ %d\n",
phba->cfg_irq_chann,
phba->cfg_hdw_queue);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
phba->nvmet_support) {
phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6013 %s x%x fb_size x%x, fb_max x%x\n",
"NVME Target PRLI ACC enable_fb ",
phba->cfg_nvme_enable_fb,
phba->cfg_nvmet_fb_size,
LPFC_NVMET_FB_SZ_MAX);
if (phba->cfg_nvme_enable_fb == 0)
phba->cfg_nvmet_fb_size = 0;
else {
if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX)
phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX;
}
if (!phba->cfg_nvmet_mrq)
phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
/* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */
if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) {
phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
"6018 Adjust lpfc_nvmet_mrq to %d\n",
phba->cfg_nvmet_mrq);
}
if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
} else {
/* Not NVME Target mode. Turn off Target parameters. */
phba->nvmet_support = 0;
phba->cfg_nvmet_mrq = 0;
phba->cfg_nvmet_fb_size = 0;
}
}
/**
* lpfc_get_vport_cfgparam - Used during port create, init the vport structure
* @vport: lpfc_vport pointer.
**/
void
lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
{
lpfc_log_verbose_init(vport, lpfc_log_verbose);
lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
lpfc_restrict_login_init(vport, lpfc_restrict_login);
lpfc_fcp_class_init(vport, lpfc_fcp_class);
lpfc_use_adisc_init(vport, lpfc_use_adisc);
lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
lpfc_max_luns_init(vport, lpfc_max_luns);
lpfc_scan_down_init(vport, lpfc_scan_down);
lpfc_enable_da_id_init(vport, lpfc_enable_da_id);
return;
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_attr.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/sched/signal.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_version.h"
#include "lpfc_vport.h"
inline void lpfc_vport_set_state(struct lpfc_vport *vport,
enum fc_vport_state new_state)
{
struct fc_vport *fc_vport = vport->fc_vport;
if (fc_vport) {
/*
* When the transport defines fc_vport_set state we will replace
* this code with the following line
*/
/* fc_vport_set_state(fc_vport, new_state); */
if (new_state != FC_VPORT_INITIALIZING)
fc_vport->vport_last_state = fc_vport->vport_state;
fc_vport->vport_state = new_state;
}
/* for all the error states we will set the invternal state to FAILED */
switch (new_state) {
case FC_VPORT_NO_FABRIC_SUPP:
case FC_VPORT_NO_FABRIC_RSCS:
case FC_VPORT_FABRIC_LOGOUT:
case FC_VPORT_FABRIC_REJ_WWN:
case FC_VPORT_FAILED:
vport->port_state = LPFC_VPORT_FAILED;
break;
case FC_VPORT_LINKDOWN:
vport->port_state = LPFC_VPORT_UNKNOWN;
break;
default:
/* do nothing */
break;
}
}
int
lpfc_alloc_vpi(struct lpfc_hba *phba)
{
unsigned long vpi;
spin_lock_irq(&phba->hbalock);
/* Start at bit 1 because vpi zero is reserved for the physical port */
vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1);
if (vpi > phba->max_vpi)
vpi = 0;
else
set_bit(vpi, phba->vpi_bmask);
if (phba->sli_rev == LPFC_SLI_REV4)
phba->sli4_hba.max_cfg_param.vpi_used++;
spin_unlock_irq(&phba->hbalock);
return vpi;
}
static void
lpfc_free_vpi(struct lpfc_hba *phba, int vpi)
{
if (vpi == 0)
return;
spin_lock_irq(&phba->hbalock);
clear_bit(vpi, phba->vpi_bmask);
if (phba->sli_rev == LPFC_SLI_REV4)
phba->sli4_hba.max_cfg_param.vpi_used--;
spin_unlock_irq(&phba->hbalock);
}
static int
lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
struct lpfc_dmabuf *mp;
int rc;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
return -ENOMEM;
}
mb = &pmb->u.mb;
rc = lpfc_read_sparam(phba, pmb, vport->vpi);
if (rc) {
mempool_free(pmb, phba->mbox_mem_pool);
return -ENOMEM;
}
/*
* Wait for the read_sparams mailbox to complete. Driver needs
* this per vport to start the FDISC. If the mailbox fails,
* just cleanup and return an error unless the failure is a
* mailbox timeout. For MBX_TIMEOUT, allow the default
* mbox completion handler to take care of the cleanup. This
* is safe as the mailbox command isn't one that triggers
* another mailbox.
*/
pmb->vport = vport;
rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2);
if (rc != MBX_SUCCESS) {
if (signal_pending(current)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1830 Signal aborted mbxCmd x%x\n",
mb->mbxCommand);
if (rc != MBX_TIMEOUT)
lpfc_mbox_rsrc_cleanup(phba, pmb,
MBOX_THD_UNLOCKED);
return -EINTR;
} else {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1818 VPort failed init, mbxCmd x%x "
"READ_SPARM mbxStatus x%x, rc = x%x\n",
mb->mbxCommand, mb->mbxStatus, rc);
if (rc != MBX_TIMEOUT)
lpfc_mbox_rsrc_cleanup(phba, pmb,
MBOX_THD_UNLOCKED);
return -EIO;
}
}
mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
sizeof (struct lpfc_name));
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof (struct lpfc_name));
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
return 0;
}
static int
lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn,
const char *name_type)
{
/* ensure that IEEE format 1 addresses
* contain zeros in bits 59-48
*/
if (!((wwn->u.wwn[0] >> 4) == 1 &&
((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0)))
return 1;
lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
"1822 Invalid %s: %02x:%02x:%02x:%02x:"
"%02x:%02x:%02x:%02x\n",
name_type,
wwn->u.wwn[0], wwn->u.wwn[1],
wwn->u.wwn[2], wwn->u.wwn[3],
wwn->u.wwn[4], wwn->u.wwn[5],
wwn->u.wwn[6], wwn->u.wwn[7]);
return 0;
}
static int
lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport)
{
struct lpfc_vport *vport;
unsigned long flags;
spin_lock_irqsave(&phba->port_list_lock, flags);
list_for_each_entry(vport, &phba->port_list, listentry) {
if (vport == new_vport)
continue;
/* If they match, return not unique */
if (memcmp(&vport->fc_sparam.portName,
&new_vport->fc_sparam.portName,
sizeof(struct lpfc_name)) == 0) {
spin_unlock_irqrestore(&phba->port_list_lock, flags);
return 0;
}
}
spin_unlock_irqrestore(&phba->port_list_lock, flags);
return 1;
}
/**
* lpfc_discovery_wait - Wait for driver discovery to quiesce
* @vport: The virtual port for which this call is being executed.
*
* This driver calls this routine specifically from lpfc_vport_delete
* to enforce a synchronous execution of vport
* delete relative to discovery activities. The
* lpfc_vport_delete routine should not return until it
* can reasonably guarantee that discovery has quiesced.
* Post FDISC LOGO, the driver must wait until its SAN teardown is
* complete and all resources recovered before allowing
* cleanup.
*
* This routine does not require any locks held.
**/
static void lpfc_discovery_wait(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
uint32_t wait_flags = 0;
unsigned long wait_time_max;
unsigned long start_time;
wait_flags = FC_RSCN_MODE | FC_RSCN_DISCOVERY | FC_NLP_MORE |
FC_RSCN_DEFERRED | FC_NDISC_ACTIVE | FC_DISC_TMO;
/*
* The time constraint on this loop is a balance between the
* fabric RA_TOV value and dev_loss tmo. The driver's
* devloss_tmo is 10 giving this loop a 3x multiplier minimally.
*/
wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000);
wait_time_max += jiffies;
start_time = jiffies;
while (time_before(jiffies, wait_time_max)) {
if ((vport->num_disc_nodes > 0) ||
(vport->fc_flag & wait_flags) ||
((vport->port_state > LPFC_VPORT_FAILED) &&
(vport->port_state < LPFC_VPORT_READY))) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,
"1833 Vport discovery quiesce Wait:"
" state x%x fc_flags x%x"
" num_nodes x%x, waiting 1000 msecs"
" total wait msecs x%x\n",
vport->port_state, vport->fc_flag,
vport->num_disc_nodes,
jiffies_to_msecs(jiffies - start_time));
msleep(1000);
} else {
/* Base case. Wait variants satisfied. Break out */
lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,
"1834 Vport discovery quiesced:"
" state x%x fc_flags x%x"
" wait msecs x%x\n",
vport->port_state, vport->fc_flag,
jiffies_to_msecs(jiffies
- start_time));
break;
}
}
if (time_after(jiffies, wait_time_max))
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1835 Vport discovery quiesce failed:"
" state x%x fc_flags x%x wait msecs x%x\n",
vport->port_state, vport->fc_flag,
jiffies_to_msecs(jiffies - start_time));
}
int
lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
{
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost = fc_vport->shost;
struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = pport->phba;
struct lpfc_vport *vport = NULL;
int instance;
int vpi;
int rc = VPORT_ERROR;
int status;
if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1808 Create VPORT failed: "
"NPIV is not enabled: SLImode:%d\n",
phba->sli_rev);
rc = VPORT_INVAL;
goto error_out;
}
/* NPIV is not supported if HBA has NVME Target enabled */
if (phba->nvmet_support) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3189 Create VPORT failed: "
"NPIV is not supported on NVME Target\n");
rc = VPORT_INVAL;
goto error_out;
}
vpi = lpfc_alloc_vpi(phba);
if (vpi == 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1809 Create VPORT failed: "
"Max VPORTs (%d) exceeded\n",
phba->max_vpi);
rc = VPORT_NORESOURCES;
goto error_out;
}
/* Assign an unused board number */
if ((instance = lpfc_get_instance()) < 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1810 Create VPORT failed: Cannot get "
"instance number\n");
lpfc_free_vpi(phba, vpi);
rc = VPORT_NORESOURCES;
goto error_out;
}
vport = lpfc_create_port(phba, instance, &fc_vport->dev);
if (!vport) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1811 Create VPORT failed: vpi x%x\n", vpi);
lpfc_free_vpi(phba, vpi);
rc = VPORT_NORESOURCES;
goto error_out;
}
vport->vpi = vpi;
lpfc_debugfs_initialize(vport);
if ((status = lpfc_vport_sparm(phba, vport))) {
if (status == -EINTR) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1831 Create VPORT Interrupted.\n");
rc = VPORT_ERROR;
} else {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1813 Create VPORT failed. "
"Cannot get sparam\n");
rc = VPORT_NORESOURCES;
}
lpfc_free_vpi(phba, vpi);
destroy_port(vport);
goto error_out;
}
u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn);
u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn);
memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8);
memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8);
if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") ||
!lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1821 Create VPORT failed. "
"Invalid WWN format\n");
lpfc_free_vpi(phba, vpi);
destroy_port(vport);
rc = VPORT_INVAL;
goto error_out;
}
if (!lpfc_unique_wwpn(phba, vport)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1823 Create VPORT failed. "
"Duplicate WWN on HBA\n");
lpfc_free_vpi(phba, vpi);
destroy_port(vport);
rc = VPORT_INVAL;
goto error_out;
}
/* Create binary sysfs attribute for vport */
lpfc_alloc_sysfs_attr(vport);
/* Set the DFT_LUN_Q_DEPTH accordingly */
vport->cfg_lun_queue_depth = phba->pport->cfg_lun_queue_depth;
/* Only the physical port can support NVME for now */
vport->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
*(struct lpfc_vport **)fc_vport->dd_data = vport;
vport->fc_vport = fc_vport;
/* At this point we are fully registered with SCSI Layer. */
vport->load_flag |= FC_ALLOW_FDMI;
if (phba->cfg_enable_SmartSAN ||
(phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
/* Setup appropriate attribute masks */
vport->fdmi_hba_mask = phba->pport->fdmi_hba_mask;
vport->fdmi_port_mask = phba->pport->fdmi_port_mask;
}
/*
* In SLI4, the vpi must be activated before it can be used
* by the port.
*/
if ((phba->sli_rev == LPFC_SLI_REV4) &&
(pport->fc_flag & FC_VFI_REGISTERED)) {
rc = lpfc_sli4_init_vpi(vport);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1838 Failed to INIT_VPI on vpi %d "
"status %d\n", vpi, rc);
rc = VPORT_NORESOURCES;
lpfc_free_vpi(phba, vpi);
goto error_out;
}
} else if (phba->sli_rev == LPFC_SLI_REV4) {
/*
* Driver cannot INIT_VPI now. Set the flags to
* init_vpi when reg_vfi complete.
*/
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
rc = VPORT_OK;
goto out;
}
if ((phba->link_state < LPFC_LINK_UP) ||
(pport->port_state < LPFC_FABRIC_CFG_LINK) ||
(phba->fc_topology == LPFC_TOPOLOGY_LOOP)) {
lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
rc = VPORT_OK;
goto out;
}
if (disable) {
lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
rc = VPORT_OK;
goto out;
}
/* Use the Physical nodes Fabric NDLP to determine if the link is
* up and ready to FDISC.
*/
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
if (ndlp &&
ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {
lpfc_set_disctmo(vport);
lpfc_initial_fdisc(vport);
} else {
lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0262 No NPIV Fabric support\n");
}
} else {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
}
rc = VPORT_OK;
out:
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
"1825 Vport Created.\n");
lpfc_host_attrib_init(lpfc_shost_from_vport(vport));
error_out:
return rc;
}
static int
lpfc_send_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
int rc;
struct lpfc_hba *phba = vport->phba;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);
spin_lock_irq(&ndlp->lock);
if (!(ndlp->save_flags & NLP_WAIT_FOR_LOGO) &&
!ndlp->logo_waitq) {
ndlp->logo_waitq = &waitq;
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
ndlp->nlp_flag |= NLP_ISSUE_LOGO;
ndlp->save_flags |= NLP_WAIT_FOR_LOGO;
}
spin_unlock_irq(&ndlp->lock);
rc = lpfc_issue_els_npiv_logo(vport, ndlp);
if (!rc) {
wait_event_timeout(waitq,
(!(ndlp->save_flags & NLP_WAIT_FOR_LOGO)),
msecs_to_jiffies(phba->fc_ratov * 2000));
if (!(ndlp->save_flags & NLP_WAIT_FOR_LOGO))
goto logo_cmpl;
/* LOGO wait failed. Correct status. */
rc = -EINTR;
} else {
rc = -EIO;
}
/* Error - clean up node flags. */
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO;
spin_unlock_irq(&ndlp->lock);
logo_cmpl:
lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT,
"1824 Issue LOGO completes with status %d\n",
rc);
spin_lock_irq(&ndlp->lock);
ndlp->logo_waitq = NULL;
spin_unlock_irq(&ndlp->lock);
return rc;
}
static int
disable_vport(struct fc_vport *fc_vport)
{
struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp = NULL;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
/* Can't disable during an outstanding delete. */
if (vport->load_flag & FC_UNLOADING)
return 0;
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (ndlp && phba->link_state >= LPFC_LINK_UP)
(void)lpfc_send_npiv_logo(vport, ndlp);
lpfc_sli_host_down(vport);
lpfc_cleanup_rpis(vport, 0);
lpfc_stop_vport_timers(vport);
lpfc_unreg_all_rpis(vport);
lpfc_unreg_default_rpis(vport);
/*
* Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the
* scsi_host_put() to release the vport.
*/
lpfc_mbx_unreg_vpi(vport);
if (phba->sli_rev == LPFC_SLI_REV4) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
spin_unlock_irq(shost->host_lock);
}
lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
"1826 Vport Disabled.\n");
return VPORT_OK;
}
static int
enable_vport(struct fc_vport *fc_vport)
{
struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp = NULL;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if ((phba->link_state < LPFC_LINK_UP) ||
(phba->fc_topology == LPFC_TOPOLOGY_LOOP)) {
lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
return VPORT_OK;
}
spin_lock_irq(shost->host_lock);
vport->load_flag |= FC_LOADING;
if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
spin_unlock_irq(shost->host_lock);
lpfc_issue_init_vpi(vport);
goto out;
}
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
/* Use the Physical nodes Fabric NDLP to determine if the link is
* up and ready to FDISC.
*/
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) {
lpfc_set_disctmo(vport);
lpfc_initial_fdisc(vport);
} else {
lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0264 No NPIV Fabric support\n");
}
} else {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
}
out:
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
"1827 Vport Enabled.\n");
return VPORT_OK;
}
int
lpfc_vport_disable(struct fc_vport *fc_vport, bool disable)
{
if (disable)
return disable_vport(fc_vport);
else
return enable_vport(fc_vport);
}
int
lpfc_vport_delete(struct fc_vport *fc_vport)
{
struct lpfc_nodelist *ndlp = NULL;
struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
int rc;
if (vport->port_type == LPFC_PHYSICAL_PORT) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1812 vport_delete failed: Cannot delete "
"physical host\n");
return VPORT_ERROR;
}
/* If the vport is a static vport fail the deletion. */
if ((vport->vport_flag & STATIC_VPORT) &&
!(phba->pport->load_flag & FC_UNLOADING)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1837 vport_delete failed: Cannot delete "
"static vport.\n");
return VPORT_ERROR;
}
spin_lock_irq(&phba->hbalock);
vport->load_flag |= FC_UNLOADING;
spin_unlock_irq(&phba->hbalock);
/*
* If we are not unloading the driver then prevent the vport_delete
* from happening until after this vport's discovery is finished.
*/
if (!(phba->pport->load_flag & FC_UNLOADING)) {
int check_count = 0;
while (check_count < ((phba->fc_ratov * 3) + 3) &&
vport->port_state > LPFC_VPORT_FAILED &&
vport->port_state < LPFC_VPORT_READY) {
check_count++;
msleep(1000);
}
if (vport->port_state > LPFC_VPORT_FAILED &&
vport->port_state < LPFC_VPORT_READY)
return -EAGAIN;
}
/*
* Take early refcount for outstanding I/O requests we schedule during
* delete processing for unreg_vpi. Always keep this before
* scsi_remove_host() as we can no longer obtain a reference through
* scsi_host_get() after scsi_host_remove as shost is set to SHOST_DEL.
*/
if (!scsi_host_get(shost))
return VPORT_INVAL;
lpfc_free_sysfs_attr(vport);
lpfc_debugfs_terminate(vport);
/* Remove FC host to break driver binding. */
fc_remove_host(shost);
scsi_remove_host(shost);
/* Send the DA_ID and Fabric LOGO to cleanup Nameserver entries. */
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp)
goto skip_logo;
if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE &&
phba->link_state >= LPFC_LINK_UP &&
phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
if (vport->cfg_enable_da_id) {
/* Send DA_ID and wait for a completion. */
rc = lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0);
if (rc) {
lpfc_printf_log(vport->phba, KERN_WARNING,
LOG_VPORT,
"1829 CT command failed to "
"delete objects on fabric, "
"rc %d\n", rc);
}
}
/*
* If the vpi is not registered, then a valid FDISC doesn't
* exist and there is no need for a ELS LOGO. Just cleanup
* the ndlp.
*/
if (!(vport->vpi_state & LPFC_VPI_REGISTERED))
goto skip_logo;
/* Issue a Fabric LOGO to cleanup fabric resources. */
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp)
goto skip_logo;
rc = lpfc_send_npiv_logo(vport, ndlp);
if (rc)
goto skip_logo;
}
if (!(phba->pport->load_flag & FC_UNLOADING))
lpfc_discovery_wait(vport);
skip_logo:
lpfc_cleanup(vport);
/* Remove scsi host now. The nodes are cleaned up. */
lpfc_sli_host_down(vport);
lpfc_stop_vport_timers(vport);
if (!(phba->pport->load_flag & FC_UNLOADING)) {
lpfc_unreg_all_rpis(vport);
lpfc_unreg_default_rpis(vport);
/*
* Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi)
* does the scsi_host_put() to release the vport.
*/
if (!(vport->vpi_state & LPFC_VPI_REGISTERED) ||
lpfc_mbx_unreg_vpi(vport))
scsi_host_put(shost);
} else {
scsi_host_put(shost);
}
lpfc_free_vpi(phba, vport->vpi);
vport->work_port_events = 0;
spin_lock_irq(&phba->port_list_lock);
list_del_init(&vport->listentry);
spin_unlock_irq(&phba->port_list_lock);
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
"1828 Vport Deleted.\n");
scsi_host_put(shost);
return VPORT_OK;
}
struct lpfc_vport **
lpfc_create_vport_work_array(struct lpfc_hba *phba)
{
struct lpfc_vport *port_iterator;
struct lpfc_vport **vports;
int index = 0;
vports = kcalloc(phba->max_vports + 1, sizeof(struct lpfc_vport *),
GFP_KERNEL);
if (vports == NULL)
return NULL;
spin_lock_irq(&phba->port_list_lock);
list_for_each_entry(port_iterator, &phba->port_list, listentry) {
if (port_iterator->load_flag & FC_UNLOADING)
continue;
if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
lpfc_printf_vlog(port_iterator, KERN_ERR,
LOG_TRACE_EVENT,
"1801 Create vport work array FAILED: "
"cannot do scsi_host_get\n");
continue;
}
vports[index++] = port_iterator;
}
spin_unlock_irq(&phba->port_list_lock);
return vports;
}
void
lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports)
{
int i;
if (vports == NULL)
return;
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
scsi_host_put(lpfc_shost_from_vport(vports[i]));
kfree(vports);
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_vport.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
********************************************************************/
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <asm/unaligned.h>
#include <linux/crc-t10dif.h>
#include <net/checksum.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_version.h"
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_nvme.h"
#include "lpfc_scsi.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"
/* NVME initiator-based functions */
static struct lpfc_io_buf *
lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
int idx, int expedite);
static void
lpfc_release_nvme_buf(struct lpfc_hba *, struct lpfc_io_buf *);
static struct nvme_fc_port_template lpfc_nvme_template;
/**
* lpfc_nvme_create_queue -
* @pnvme_lport: Transport localport that LS is to be issued from
* @qidx: An cpu index used to affinitize IO queues and MSIX vectors.
* @qsize: Size of the queue in bytes
* @handle: An opaque driver handle used in follow-up calls.
*
* Driver registers this routine to preallocate and initialize any
* internal data structures to bind the @qidx to its internal IO queues.
* A hardware queue maps (qidx) to a specific driver MSI-X vector/EQ/CQ/WQ.
*
* Return value :
* 0 - Success
* -EINVAL - Unsupported input value.
* -ENOMEM - Could not alloc necessary memory
**/
static int
lpfc_nvme_create_queue(struct nvme_fc_local_port *pnvme_lport,
unsigned int qidx, u16 qsize,
void **handle)
{
struct lpfc_nvme_lport *lport;
struct lpfc_vport *vport;
struct lpfc_nvme_qhandle *qhandle;
char *str;
if (!pnvme_lport->private)
return -ENOMEM;
lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
vport = lport->vport;
if (!vport || vport->load_flag & FC_UNLOADING ||
vport->phba->hba_flag & HBA_IOQ_FLUSH)
return -ENODEV;
qhandle = kzalloc(sizeof(struct lpfc_nvme_qhandle), GFP_KERNEL);
if (qhandle == NULL)
return -ENOMEM;
qhandle->cpu_id = raw_smp_processor_id();
qhandle->qidx = qidx;
/*
* NVME qidx == 0 is the admin queue, so both admin queue
* and first IO queue will use MSI-X vector and associated
* EQ/CQ/WQ at index 0. After that they are sequentially assigned.
*/
if (qidx) {
str = "IO "; /* IO queue */
qhandle->index = ((qidx - 1) %
lpfc_nvme_template.max_hw_queues);
} else {
str = "ADM"; /* Admin queue */
qhandle->index = qidx;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
"6073 Binding %s HdwQueue %d (cpu %d) to "
"hdw_queue %d qhandle x%px\n", str,
qidx, qhandle->cpu_id, qhandle->index, qhandle);
*handle = (void *)qhandle;
return 0;
}
/**
* lpfc_nvme_delete_queue -
* @pnvme_lport: Transport localport that LS is to be issued from
* @qidx: An cpu index used to affinitize IO queues and MSIX vectors.
* @handle: An opaque driver handle from lpfc_nvme_create_queue
*
* Driver registers this routine to free
* any internal data structures to bind the @qidx to its internal
* IO queues.
*
* Return value :
* 0 - Success
* TODO: What are the failure codes.
**/
static void
lpfc_nvme_delete_queue(struct nvme_fc_local_port *pnvme_lport,
unsigned int qidx,
void *handle)
{
struct lpfc_nvme_lport *lport;
struct lpfc_vport *vport;
if (!pnvme_lport->private)
return;
lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
vport = lport->vport;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
"6001 ENTER. lpfc_pnvme x%px, qidx x%x qhandle x%px\n",
lport, qidx, handle);
kfree(handle);
}
static void
lpfc_nvme_localport_delete(struct nvme_fc_local_port *localport)
{
struct lpfc_nvme_lport *lport = localport->private;
lpfc_printf_vlog(lport->vport, KERN_INFO, LOG_NVME,
"6173 localport x%px delete complete\n",
lport);
/* release any threads waiting for the unreg to complete */
if (lport->vport->localport)
complete(lport->lport_unreg_cmp);
}
/* lpfc_nvme_remoteport_delete
*
* @remoteport: Pointer to an nvme transport remoteport instance.
*
* This is a template downcall. NVME transport calls this function
* when it has completed the unregistration of a previously
* registered remoteport.
*
* Return value :
* None
*/
static void
lpfc_nvme_remoteport_delete(struct nvme_fc_remote_port *remoteport)
{
struct lpfc_nvme_rport *rport = remoteport->private;
struct lpfc_vport *vport;
struct lpfc_nodelist *ndlp;
u32 fc4_xpt_flags;
ndlp = rport->ndlp;
if (!ndlp) {
pr_err("**** %s: NULL ndlp on rport x%px remoteport x%px\n",
__func__, rport, remoteport);
goto rport_err;
}
vport = ndlp->vport;
if (!vport) {
pr_err("**** %s: Null vport on ndlp x%px, ste x%x rport x%px\n",
__func__, ndlp, ndlp->nlp_state, rport);
goto rport_err;
}
fc4_xpt_flags = NVME_XPT_REGD | SCSI_XPT_REGD;
/* Remove this rport from the lport's list - memory is owned by the
* transport. Remove the ndlp reference for the NVME transport before
* calling state machine to remove the node.
*/
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6146 remoteport delete of remoteport x%px, ndlp x%px "
"DID x%x xflags x%x\n",
remoteport, ndlp, ndlp->nlp_DID, ndlp->fc4_xpt_flags);
spin_lock_irq(&ndlp->lock);
/* The register rebind might have occurred before the delete
* downcall. Guard against this race.
*/
if (ndlp->fc4_xpt_flags & NVME_XPT_UNREG_WAIT)
ndlp->fc4_xpt_flags &= ~(NVME_XPT_UNREG_WAIT | NVME_XPT_REGD);
spin_unlock_irq(&ndlp->lock);
/* On a devloss timeout event, one more put is executed provided the
* NVME and SCSI rport unregister requests are complete.
*/
if (!(ndlp->fc4_xpt_flags & fc4_xpt_flags))
lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
rport_err:
return;
}
/**
* lpfc_nvme_handle_lsreq - Process an unsolicited NVME LS request
* @phba: pointer to lpfc hba data structure.
* @axchg: pointer to exchange context for the NVME LS request
*
* This routine is used for processing an asychronously received NVME LS
* request. Any remaining validation is done and the LS is then forwarded
* to the nvme-fc transport via nvme_fc_rcv_ls_req().
*
* The calling sequence should be: nvme_fc_rcv_ls_req() -> (processing)
* -> lpfc_nvme_xmt_ls_rsp/cmp -> req->done.
* __lpfc_nvme_xmt_ls_rsp_cmp should free the allocated axchg.
*
* Returns 0 if LS was handled and delivered to the transport
* Returns 1 if LS failed to be handled and should be dropped
*/
int
lpfc_nvme_handle_lsreq(struct lpfc_hba *phba,
struct lpfc_async_xchg_ctx *axchg)
{
#if (IS_ENABLED(CONFIG_NVME_FC))
struct lpfc_vport *vport;
struct lpfc_nvme_rport *lpfc_rport;
struct nvme_fc_remote_port *remoteport;
struct lpfc_nvme_lport *lport;
uint32_t *payload = axchg->payload;
int rc;
vport = axchg->ndlp->vport;
lpfc_rport = axchg->ndlp->nrport;
if (!lpfc_rport)
return -EINVAL;
remoteport = lpfc_rport->remoteport;
if (!vport->localport ||
vport->phba->hba_flag & HBA_IOQ_FLUSH)
return -EINVAL;
lport = vport->localport->private;
if (!lport)
return -EINVAL;
rc = nvme_fc_rcv_ls_req(remoteport, &axchg->ls_rsp, axchg->payload,
axchg->size);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6205 NVME Unsol rcv: sz %d rc %d: %08x %08x %08x "
"%08x %08x %08x\n",
axchg->size, rc,
*payload, *(payload+1), *(payload+2),
*(payload+3), *(payload+4), *(payload+5));
if (!rc)
return 0;
#endif
return 1;
}
/**
* __lpfc_nvme_ls_req_cmp - Generic completion handler for a NVME
* LS request.
* @phba: Pointer to HBA context object
* @vport: The local port that issued the LS
* @cmdwqe: Pointer to driver command WQE object.
* @wcqe: Pointer to driver response CQE object.
*
* This function is the generic completion handler for NVME LS requests.
* The function updates any states and statistics, calls the transport
* ls_req done() routine, then tears down the command and buffers used
* for the LS request.
**/
void
__lpfc_nvme_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_vport *vport,
struct lpfc_iocbq *cmdwqe,
struct lpfc_wcqe_complete *wcqe)
{
struct nvmefc_ls_req *pnvme_lsreq;
struct lpfc_dmabuf *buf_ptr;
struct lpfc_nodelist *ndlp;
int status;
pnvme_lsreq = cmdwqe->context_un.nvme_lsreq;
ndlp = cmdwqe->ndlp;
buf_ptr = cmdwqe->bpl_dmabuf;
status = bf_get(lpfc_wcqe_c_status, wcqe);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6047 NVMEx LS REQ x%px cmpl DID %x Xri: %x "
"status %x reason x%x cmd:x%px lsreg:x%px bmp:x%px "
"ndlp:x%px\n",
pnvme_lsreq, ndlp ? ndlp->nlp_DID : 0,
cmdwqe->sli4_xritag, status,
(wcqe->parameter & 0xffff),
cmdwqe, pnvme_lsreq, cmdwqe->bpl_dmabuf,
ndlp);
lpfc_nvmeio_data(phba, "NVMEx LS CMPL: xri x%x stat x%x parm x%x\n",
cmdwqe->sli4_xritag, status, wcqe->parameter);
if (buf_ptr) {
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
cmdwqe->bpl_dmabuf = NULL;
}
if (pnvme_lsreq->done) {
if (status != CQE_STATUS_SUCCESS)
status = -ENXIO;
pnvme_lsreq->done(pnvme_lsreq, status);
} else {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6046 NVMEx cmpl without done call back? "
"Data x%px DID %x Xri: %x status %x\n",
pnvme_lsreq, ndlp ? ndlp->nlp_DID : 0,
cmdwqe->sli4_xritag, status);
}
if (ndlp) {
lpfc_nlp_put(ndlp);
cmdwqe->ndlp = NULL;
}
lpfc_sli_release_iocbq(phba, cmdwqe);
}
static void
lpfc_nvme_ls_req_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe)
{
struct lpfc_vport *vport = cmdwqe->vport;
struct lpfc_nvme_lport *lport;
uint32_t status;
struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
status = bf_get(lpfc_wcqe_c_status, wcqe);
if (vport->localport) {
lport = (struct lpfc_nvme_lport *)vport->localport->private;
if (lport) {
atomic_inc(&lport->fc4NvmeLsCmpls);
if (status) {
if (bf_get(lpfc_wcqe_c_xb, wcqe))
atomic_inc(&lport->cmpl_ls_xb);
atomic_inc(&lport->cmpl_ls_err);
}
}
}
__lpfc_nvme_ls_req_cmp(phba, vport, cmdwqe, wcqe);
}
static int
lpfc_nvme_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
struct lpfc_dmabuf *inp,
struct nvmefc_ls_req *pnvme_lsreq,
void (*cmpl)(struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *),
struct lpfc_nodelist *ndlp, uint32_t num_entry,
uint32_t tmo, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
union lpfc_wqe128 *wqe;
struct lpfc_iocbq *genwqe;
struct ulp_bde64 *bpl;
struct ulp_bde64 bde;
int i, rc, xmit_len, first_len;
/* Allocate buffer for command WQE */
genwqe = lpfc_sli_get_iocbq(phba);
if (genwqe == NULL)
return 1;
wqe = &genwqe->wqe;
/* Initialize only 64 bytes */
memset(wqe, 0, sizeof(union lpfc_wqe));
genwqe->bpl_dmabuf = bmp;
genwqe->cmd_flag |= LPFC_IO_NVME_LS;
/* Save for completion so we can release these resources */
genwqe->ndlp = lpfc_nlp_get(ndlp);
if (!genwqe->ndlp) {
dev_warn(&phba->pcidev->dev,
"Warning: Failed node ref, not sending LS_REQ\n");
lpfc_sli_release_iocbq(phba, genwqe);
return 1;
}
genwqe->context_un.nvme_lsreq = pnvme_lsreq;
/* Fill in payload, bp points to frame payload */
if (!tmo)
/* FC spec states we need 3 * ratov for CT requests */
tmo = (3 * phba->fc_ratov);
/* For this command calculate the xmit length of the request bde. */
xmit_len = 0;
first_len = 0;
bpl = (struct ulp_bde64 *)bmp->virt;
for (i = 0; i < num_entry; i++) {
bde.tus.w = bpl[i].tus.w;
if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
break;
xmit_len += bde.tus.f.bdeSize;
if (i == 0)
first_len = xmit_len;
}
genwqe->num_bdes = num_entry;
genwqe->hba_wqidx = 0;
/* Words 0 - 2 */
wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
wqe->generic.bde.tus.f.bdeSize = first_len;
wqe->generic.bde.addrLow = bpl[0].addrLow;
wqe->generic.bde.addrHigh = bpl[0].addrHigh;
/* Word 3 */
wqe->gen_req.request_payload_len = first_len;
/* Word 4 */
/* Word 5 */
bf_set(wqe_dfctl, &wqe->gen_req.wge_ctl, 0);
bf_set(wqe_si, &wqe->gen_req.wge_ctl, 1);
bf_set(wqe_la, &wqe->gen_req.wge_ctl, 1);
bf_set(wqe_rctl, &wqe->gen_req.wge_ctl, FC_RCTL_ELS4_REQ);
bf_set(wqe_type, &wqe->gen_req.wge_ctl, FC_TYPE_NVME);
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe->gen_req.wqe_com,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_xri_tag, &wqe->gen_req.wqe_com, genwqe->sli4_xritag);
/* Word 7 */
bf_set(wqe_tmo, &wqe->gen_req.wqe_com, tmo);
bf_set(wqe_class, &wqe->gen_req.wqe_com, CLASS3);
bf_set(wqe_cmnd, &wqe->gen_req.wqe_com, CMD_GEN_REQUEST64_WQE);
bf_set(wqe_ct, &wqe->gen_req.wqe_com, SLI4_CT_RPI);
/* Word 8 */
wqe->gen_req.wqe_com.abort_tag = genwqe->iotag;
/* Word 9 */
bf_set(wqe_reqtag, &wqe->gen_req.wqe_com, genwqe->iotag);
/* Word 10 */
bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
/* Word 11 */
bf_set(wqe_cqid, &wqe->gen_req.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
bf_set(wqe_cmd_type, &wqe->gen_req.wqe_com, OTHER_COMMAND);
/* Issue GEN REQ WQE for NPORT <did> */
genwqe->cmd_cmpl = cmpl;
genwqe->drvrTimeout = tmo + LPFC_DRVR_TIMEOUT;
genwqe->vport = vport;
genwqe->retry = retry;
lpfc_nvmeio_data(phba, "NVME LS XMIT: xri x%x iotag x%x to x%06x\n",
genwqe->sli4_xritag, genwqe->iotag, ndlp->nlp_DID);
rc = lpfc_sli4_issue_wqe(phba, &phba->sli4_hba.hdwq[0], genwqe);
if (rc) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6045 Issue GEN REQ WQE to NPORT x%x "
"Data: x%x x%x rc x%x\n",
ndlp->nlp_DID, genwqe->iotag,
vport->port_state, rc);
lpfc_nlp_put(ndlp);
lpfc_sli_release_iocbq(phba, genwqe);
return 1;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC | LOG_ELS,
"6050 Issue GEN REQ WQE to NPORT x%x "
"Data: oxid: x%x state: x%x wq:x%px lsreq:x%px "
"bmp:x%px xmit:%d 1st:%d\n",
ndlp->nlp_DID, genwqe->sli4_xritag,
vport->port_state,
genwqe, pnvme_lsreq, bmp, xmit_len, first_len);
return 0;
}
/**
* __lpfc_nvme_ls_req - Generic service routine to issue an NVME LS request
* @vport: The local port issuing the LS
* @ndlp: The remote port to send the LS to
* @pnvme_lsreq: Pointer to LS request structure from the transport
* @gen_req_cmp: Completion call-back
*
* Routine validates the ndlp, builds buffers and sends a GEN_REQUEST
* WQE to perform the LS operation.
*
* Return value :
* 0 - Success
* non-zero: various error codes, in form of -Exxx
**/
int
__lpfc_nvme_ls_req(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct nvmefc_ls_req *pnvme_lsreq,
void (*gen_req_cmp)(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdwqe,
struct lpfc_iocbq *rspwqe))
{
struct lpfc_dmabuf *bmp;
struct ulp_bde64 *bpl;
int ret;
uint16_t ntype, nstate;
if (!ndlp) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6051 NVMEx LS REQ: Bad NDLP x%px, Failing "
"LS Req\n",
ndlp);
return -ENODEV;
}
ntype = ndlp->nlp_type;
nstate = ndlp->nlp_state;
if ((ntype & NLP_NVME_TARGET && nstate != NLP_STE_MAPPED_NODE) ||
(ntype & NLP_NVME_INITIATOR && nstate != NLP_STE_UNMAPPED_NODE)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6088 NVMEx LS REQ: Fail DID x%06x not "
"ready for IO. Type x%x, State x%x\n",
ndlp->nlp_DID, ntype, nstate);
return -ENODEV;
}
if (vport->phba->hba_flag & HBA_IOQ_FLUSH)
return -ENODEV;
if (!vport->phba->sli4_hba.nvmels_wq)
return -ENOMEM;
/*
* there are two dma buf in the request, actually there is one and
* the second one is just the start address + cmd size.
* Before calling lpfc_nvme_gen_req these buffers need to be wrapped
* in a lpfc_dmabuf struct. When freeing we just free the wrapper
* because the nvem layer owns the data bufs.
* We do not have to break these packets open, we don't care what is
* in them. And we do not have to look at the resonse data, we only
* care that we got a response. All of the caring is going to happen
* in the nvme-fc layer.
*/
bmp = kmalloc(sizeof(*bmp), GFP_KERNEL);
if (!bmp) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6044 NVMEx LS REQ: Could not alloc LS buf "
"for DID %x\n",
ndlp->nlp_DID);
return -ENOMEM;
}
bmp->virt = lpfc_mbuf_alloc(vport->phba, MEM_PRI, &(bmp->phys));
if (!bmp->virt) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6042 NVMEx LS REQ: Could not alloc mbuf "
"for DID %x\n",
ndlp->nlp_DID);
kfree(bmp);
return -ENOMEM;
}
INIT_LIST_HEAD(&bmp->list);
bpl = (struct ulp_bde64 *)bmp->virt;
bpl->addrHigh = le32_to_cpu(putPaddrHigh(pnvme_lsreq->rqstdma));
bpl->addrLow = le32_to_cpu(putPaddrLow(pnvme_lsreq->rqstdma));
bpl->tus.f.bdeFlags = 0;
bpl->tus.f.bdeSize = pnvme_lsreq->rqstlen;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
bpl++;
bpl->addrHigh = le32_to_cpu(putPaddrHigh(pnvme_lsreq->rspdma));
bpl->addrLow = le32_to_cpu(putPaddrLow(pnvme_lsreq->rspdma));
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
bpl->tus.f.bdeSize = pnvme_lsreq->rsplen;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6149 NVMEx LS REQ: Issue to DID 0x%06x lsreq x%px, "
"rqstlen:%d rsplen:%d %pad %pad\n",
ndlp->nlp_DID, pnvme_lsreq, pnvme_lsreq->rqstlen,
pnvme_lsreq->rsplen, &pnvme_lsreq->rqstdma,
&pnvme_lsreq->rspdma);
ret = lpfc_nvme_gen_req(vport, bmp, pnvme_lsreq->rqstaddr,
pnvme_lsreq, gen_req_cmp, ndlp, 2,
pnvme_lsreq->timeout, 0);
if (ret != WQE_SUCCESS) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6052 NVMEx REQ: EXIT. issue ls wqe failed "
"lsreq x%px Status %x DID %x\n",
pnvme_lsreq, ret, ndlp->nlp_DID);
lpfc_mbuf_free(vport->phba, bmp->virt, bmp->phys);
kfree(bmp);
return -EIO;
}
return 0;
}
/**
* lpfc_nvme_ls_req - Issue an NVME Link Service request
* @pnvme_lport: Transport localport that LS is to be issued from.
* @pnvme_rport: Transport remoteport that LS is to be sent to.
* @pnvme_lsreq: the transport nvme_ls_req structure for the LS
*
* Driver registers this routine to handle any link service request
* from the nvme_fc transport to a remote nvme-aware port.
*
* Return value :
* 0 - Success
* non-zero: various error codes, in form of -Exxx
**/
static int
lpfc_nvme_ls_req(struct nvme_fc_local_port *pnvme_lport,
struct nvme_fc_remote_port *pnvme_rport,
struct nvmefc_ls_req *pnvme_lsreq)
{
struct lpfc_nvme_lport *lport;
struct lpfc_nvme_rport *rport;
struct lpfc_vport *vport;
int ret;
lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
rport = (struct lpfc_nvme_rport *)pnvme_rport->private;
if (unlikely(!lport) || unlikely(!rport))
return -EINVAL;
vport = lport->vport;
if (vport->load_flag & FC_UNLOADING ||
vport->phba->hba_flag & HBA_IOQ_FLUSH)
return -ENODEV;
atomic_inc(&lport->fc4NvmeLsRequests);
ret = __lpfc_nvme_ls_req(vport, rport->ndlp, pnvme_lsreq,
lpfc_nvme_ls_req_cmp);
if (ret)
atomic_inc(&lport->xmt_ls_err);
return ret;
}
/**
* __lpfc_nvme_ls_abort - Generic service routine to abort a prior
* NVME LS request
* @vport: The local port that issued the LS
* @ndlp: The remote port the LS was sent to
* @pnvme_lsreq: Pointer to LS request structure from the transport
*
* The driver validates the ndlp, looks for the LS, and aborts the
* LS if found.
*
* Returns:
* 0 : if LS found and aborted
* non-zero: various error conditions in form -Exxx
**/
int
__lpfc_nvme_ls_abort(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct nvmefc_ls_req *pnvme_lsreq)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *wqe, *next_wqe;
bool foundit = false;
if (!ndlp) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6049 NVMEx LS REQ Abort: Bad NDLP x%px DID "
"x%06x, Failing LS Req\n",
ndlp, ndlp ? ndlp->nlp_DID : 0);
return -EINVAL;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC | LOG_NVME_ABTS,
"6040 NVMEx LS REQ Abort: Issue LS_ABORT for lsreq "
"x%px rqstlen:%d rsplen:%d %pad %pad\n",
pnvme_lsreq, pnvme_lsreq->rqstlen,
pnvme_lsreq->rsplen, &pnvme_lsreq->rqstdma,
&pnvme_lsreq->rspdma);
/*
* Lock the ELS ring txcmplq and look for the wqe that matches
* this ELS. If found, issue an abort on the wqe.
*/
pring = phba->sli4_hba.nvmels_wq->pring;
spin_lock_irq(&phba->hbalock);
spin_lock(&pring->ring_lock);
list_for_each_entry_safe(wqe, next_wqe, &pring->txcmplq, list) {
if (wqe->context_un.nvme_lsreq == pnvme_lsreq) {
wqe->cmd_flag |= LPFC_DRIVER_ABORTED;
foundit = true;
break;
}
}
spin_unlock(&pring->ring_lock);
if (foundit)
lpfc_sli_issue_abort_iotag(phba, pring, wqe, NULL);
spin_unlock_irq(&phba->hbalock);
if (foundit)
return 0;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC | LOG_NVME_ABTS,
"6213 NVMEx LS REQ Abort: Unable to locate req x%px\n",
pnvme_lsreq);
return -EINVAL;
}
static int
lpfc_nvme_xmt_ls_rsp(struct nvme_fc_local_port *localport,
struct nvme_fc_remote_port *remoteport,
struct nvmefc_ls_rsp *ls_rsp)
{
struct lpfc_async_xchg_ctx *axchg =
container_of(ls_rsp, struct lpfc_async_xchg_ctx, ls_rsp);
struct lpfc_nvme_lport *lport;
int rc;
if (axchg->phba->pport->load_flag & FC_UNLOADING)
return -ENODEV;
lport = (struct lpfc_nvme_lport *)localport->private;
rc = __lpfc_nvme_xmt_ls_rsp(axchg, ls_rsp, __lpfc_nvme_xmt_ls_rsp_cmp);
if (rc) {
/*
* unless the failure is due to having already sent
* the response, an abort will be generated for the
* exchange if the rsp can't be sent.
*/
if (rc != -EALREADY)
atomic_inc(&lport->xmt_ls_abort);
return rc;
}
return 0;
}
/**
* lpfc_nvme_ls_abort - Abort a prior NVME LS request
* @pnvme_lport: Transport localport that LS is to be issued from.
* @pnvme_rport: Transport remoteport that LS is to be sent to.
* @pnvme_lsreq: the transport nvme_ls_req structure for the LS
*
* Driver registers this routine to abort a NVME LS request that is
* in progress (from the transports perspective).
**/
static void
lpfc_nvme_ls_abort(struct nvme_fc_local_port *pnvme_lport,
struct nvme_fc_remote_port *pnvme_rport,
struct nvmefc_ls_req *pnvme_lsreq)
{
struct lpfc_nvme_lport *lport;
struct lpfc_vport *vport;
struct lpfc_nodelist *ndlp;
int ret;
lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
if (unlikely(!lport))
return;
vport = lport->vport;
if (vport->load_flag & FC_UNLOADING)
return;
ndlp = lpfc_findnode_did(vport, pnvme_rport->port_id);
ret = __lpfc_nvme_ls_abort(vport, ndlp, pnvme_lsreq);
if (!ret)
atomic_inc(&lport->xmt_ls_abort);
}
/* Fix up the existing sgls for NVME IO. */
static inline void
lpfc_nvme_adj_fcp_sgls(struct lpfc_vport *vport,
struct lpfc_io_buf *lpfc_ncmd,
struct nvmefc_fcp_req *nCmd)
{
struct lpfc_hba *phba = vport->phba;
struct sli4_sge *sgl;
union lpfc_wqe128 *wqe;
uint32_t *wptr, *dptr;
/*
* Get a local pointer to the built-in wqe and correct
* the cmd size to match NVME's 96 bytes and fix
* the dma address.
*/
wqe = &lpfc_ncmd->cur_iocbq.wqe;
/*
* Adjust the FCP_CMD and FCP_RSP DMA data and sge_len to
* match NVME. NVME sends 96 bytes. Also, use the
* nvme commands command and response dma addresses
* rather than the virtual memory to ease the restore
* operation.
*/
sgl = lpfc_ncmd->dma_sgl;
sgl->sge_len = cpu_to_le32(nCmd->cmdlen);
if (phba->cfg_nvme_embed_cmd) {
sgl->addr_hi = 0;
sgl->addr_lo = 0;
/* Word 0-2 - NVME CMND IU (embedded payload) */
wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_IMMED;
wqe->generic.bde.tus.f.bdeSize = 56;
wqe->generic.bde.addrHigh = 0;
wqe->generic.bde.addrLow = 64; /* Word 16 */
/* Word 10 - dbde is 0, wqes is 1 in template */
/*
* Embed the payload in the last half of the WQE
* WQE words 16-30 get the NVME CMD IU payload
*
* WQE words 16-19 get payload Words 1-4
* WQE words 20-21 get payload Words 6-7
* WQE words 22-29 get payload Words 16-23
*/
wptr = &wqe->words[16]; /* WQE ptr */
dptr = (uint32_t *)nCmd->cmdaddr; /* payload ptr */
dptr++; /* Skip Word 0 in payload */
*wptr++ = *dptr++; /* Word 1 */
*wptr++ = *dptr++; /* Word 2 */
*wptr++ = *dptr++; /* Word 3 */
*wptr++ = *dptr++; /* Word 4 */
dptr++; /* Skip Word 5 in payload */
*wptr++ = *dptr++; /* Word 6 */
*wptr++ = *dptr++; /* Word 7 */
dptr += 8; /* Skip Words 8-15 in payload */
*wptr++ = *dptr++; /* Word 16 */
*wptr++ = *dptr++; /* Word 17 */
*wptr++ = *dptr++; /* Word 18 */
*wptr++ = *dptr++; /* Word 19 */
*wptr++ = *dptr++; /* Word 20 */
*wptr++ = *dptr++; /* Word 21 */
*wptr++ = *dptr++; /* Word 22 */
*wptr = *dptr; /* Word 23 */
} else {
sgl->addr_hi = cpu_to_le32(putPaddrHigh(nCmd->cmddma));
sgl->addr_lo = cpu_to_le32(putPaddrLow(nCmd->cmddma));
/* Word 0-2 - NVME CMND IU Inline BDE */
wqe->generic.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
wqe->generic.bde.tus.f.bdeSize = nCmd->cmdlen;
wqe->generic.bde.addrHigh = sgl->addr_hi;
wqe->generic.bde.addrLow = sgl->addr_lo;
/* Word 10 */
bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
bf_set(wqe_wqes, &wqe->generic.wqe_com, 0);
}
sgl++;
/* Setup the physical region for the FCP RSP */
sgl->addr_hi = cpu_to_le32(putPaddrHigh(nCmd->rspdma));
sgl->addr_lo = cpu_to_le32(putPaddrLow(nCmd->rspdma));
sgl->word2 = le32_to_cpu(sgl->word2);
if (nCmd->sg_cnt)
bf_set(lpfc_sli4_sge_last, sgl, 0);
else
bf_set(lpfc_sli4_sge_last, sgl, 1);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(nCmd->rsplen);
}
/*
* lpfc_nvme_io_cmd_cmpl - Complete an NVME-over-FCP IO
*
* Driver registers this routine as it io request handler. This
* routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq
* data structure to the rport indicated in @lpfc_nvme_rport.
*
* Return value :
* 0 - Success
* TODO: What are the failure codes.
**/
static void
lpfc_nvme_io_cmd_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
struct lpfc_iocbq *pwqeOut)
{
struct lpfc_io_buf *lpfc_ncmd = pwqeIn->io_buf;
struct lpfc_wcqe_complete *wcqe = &pwqeOut->wcqe_cmpl;
struct lpfc_vport *vport = pwqeIn->vport;
struct nvmefc_fcp_req *nCmd;
struct nvme_fc_ersp_iu *ep;
struct nvme_fc_cmd_iu *cp;
struct lpfc_nodelist *ndlp;
struct lpfc_nvme_fcpreq_priv *freqpriv;
struct lpfc_nvme_lport *lport;
uint32_t code, status, idx;
uint16_t cid, sqhd, data;
uint32_t *ptr;
uint32_t lat;
bool call_done = false;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
int cpu;
#endif
int offline = 0;
/* Sanity check on return of outstanding command */
if (!lpfc_ncmd) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6071 Null lpfc_ncmd pointer. No "
"release, skip completion\n");
return;
}
/* Guard against abort handler being called at same time */
spin_lock(&lpfc_ncmd->buf_lock);
if (!lpfc_ncmd->nvmeCmd) {
spin_unlock(&lpfc_ncmd->buf_lock);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6066 Missing cmpl ptrs: lpfc_ncmd x%px, "
"nvmeCmd x%px\n",
lpfc_ncmd, lpfc_ncmd->nvmeCmd);
/* Release the lpfc_ncmd regardless of the missing elements. */
lpfc_release_nvme_buf(phba, lpfc_ncmd);
return;
}
nCmd = lpfc_ncmd->nvmeCmd;
status = bf_get(lpfc_wcqe_c_status, wcqe);
idx = lpfc_ncmd->cur_iocbq.hba_wqidx;
phba->sli4_hba.hdwq[idx].nvme_cstat.io_cmpls++;
if (unlikely(status && vport->localport)) {
lport = (struct lpfc_nvme_lport *)vport->localport->private;
if (lport) {
if (bf_get(lpfc_wcqe_c_xb, wcqe))
atomic_inc(&lport->cmpl_fcp_xb);
atomic_inc(&lport->cmpl_fcp_err);
}
}
lpfc_nvmeio_data(phba, "NVME FCP CMPL: xri x%x stat x%x parm x%x\n",
lpfc_ncmd->cur_iocbq.sli4_xritag,
status, wcqe->parameter);
/*
* Catch race where our node has transitioned, but the
* transport is still transitioning.
*/
ndlp = lpfc_ncmd->ndlp;
if (!ndlp) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6062 Ignoring NVME cmpl. No ndlp\n");
goto out_err;
}
code = bf_get(lpfc_wcqe_c_code, wcqe);
if (code == CQE_CODE_NVME_ERSP) {
/* For this type of CQE, we need to rebuild the rsp */
ep = (struct nvme_fc_ersp_iu *)nCmd->rspaddr;
/*
* Get Command Id from cmd to plug into response. This
* code is not needed in the next NVME Transport drop.
*/
cp = (struct nvme_fc_cmd_iu *)nCmd->cmdaddr;
cid = cp->sqe.common.command_id;
/*
* RSN is in CQE word 2
* SQHD is in CQE Word 3 bits 15:0
* Cmd Specific info is in CQE Word 1
* and in CQE Word 0 bits 15:0
*/
sqhd = bf_get(lpfc_wcqe_c_sqhead, wcqe);
/* Now lets build the NVME ERSP IU */
ep->iu_len = cpu_to_be16(8);
ep->rsn = wcqe->parameter;
ep->xfrd_len = cpu_to_be32(nCmd->payload_length);
ep->rsvd12 = 0;
ptr = (uint32_t *)&ep->cqe.result.u64;
*ptr++ = wcqe->total_data_placed;
data = bf_get(lpfc_wcqe_c_ersp0, wcqe);
*ptr = (uint32_t)data;
ep->cqe.sq_head = sqhd;
ep->cqe.sq_id = nCmd->sqid;
ep->cqe.command_id = cid;
ep->cqe.status = 0;
lpfc_ncmd->status = IOSTAT_SUCCESS;
lpfc_ncmd->result = 0;
nCmd->rcv_rsplen = LPFC_NVME_ERSP_LEN;
nCmd->transferred_length = nCmd->payload_length;
} else {
lpfc_ncmd->status = status;
lpfc_ncmd->result = (wcqe->parameter & IOERR_PARAM_MASK);
/* For NVME, the only failure path that results in an
* IO error is when the adapter rejects it. All other
* conditions are a success case and resolved by the
* transport.
* IOSTAT_FCP_RSP_ERROR means:
* 1. Length of data received doesn't match total
* transfer length in WQE
* 2. If the RSP payload does NOT match these cases:
* a. RSP length 12/24 bytes and all zeros
* b. NVME ERSP
*/
switch (lpfc_ncmd->status) {
case IOSTAT_SUCCESS:
nCmd->transferred_length = wcqe->total_data_placed;
nCmd->rcv_rsplen = 0;
nCmd->status = 0;
break;
case IOSTAT_FCP_RSP_ERROR:
nCmd->transferred_length = wcqe->total_data_placed;
nCmd->rcv_rsplen = wcqe->parameter;
nCmd->status = 0;
/* Get the NVME cmd details for this unique error. */
cp = (struct nvme_fc_cmd_iu *)nCmd->cmdaddr;
ep = (struct nvme_fc_ersp_iu *)nCmd->rspaddr;
/* Check if this is really an ERSP */
if (nCmd->rcv_rsplen == LPFC_NVME_ERSP_LEN) {
lpfc_ncmd->status = IOSTAT_SUCCESS;
lpfc_ncmd->result = 0;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
"6084 NVME FCP_ERR ERSP: "
"xri %x placed x%x opcode x%x cmd_id "
"x%x cqe_status x%x\n",
lpfc_ncmd->cur_iocbq.sli4_xritag,
wcqe->total_data_placed,
cp->sqe.common.opcode,
cp->sqe.common.command_id,
ep->cqe.status);
break;
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6081 NVME Completion Protocol Error: "
"xri %x status x%x result x%x "
"placed x%x opcode x%x cmd_id x%x, "
"cqe_status x%x\n",
lpfc_ncmd->cur_iocbq.sli4_xritag,
lpfc_ncmd->status, lpfc_ncmd->result,
wcqe->total_data_placed,
cp->sqe.common.opcode,
cp->sqe.common.command_id,
ep->cqe.status);
break;
case IOSTAT_LOCAL_REJECT:
/* Let fall through to set command final state. */
if (lpfc_ncmd->result == IOERR_ABORT_REQUESTED)
lpfc_printf_vlog(vport, KERN_INFO,
LOG_NVME_IOERR,
"6032 Delay Aborted cmd x%px "
"nvme cmd x%px, xri x%x, "
"xb %d\n",
lpfc_ncmd, nCmd,
lpfc_ncmd->cur_iocbq.sli4_xritag,
bf_get(lpfc_wcqe_c_xb, wcqe));
fallthrough;
default:
out_err:
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6072 NVME Completion Error: xri %x "
"status x%x result x%x [x%x] "
"placed x%x\n",
lpfc_ncmd->cur_iocbq.sli4_xritag,
lpfc_ncmd->status, lpfc_ncmd->result,
wcqe->parameter,
wcqe->total_data_placed);
nCmd->transferred_length = 0;
nCmd->rcv_rsplen = 0;
nCmd->status = NVME_SC_INTERNAL;
offline = pci_channel_offline(vport->phba->pcidev);
}
}
/* pick up SLI4 exhange busy condition */
if (bf_get(lpfc_wcqe_c_xb, wcqe) && !offline)
lpfc_ncmd->flags |= LPFC_SBUF_XBUSY;
else
lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY;
/* Update stats and complete the IO. There is
* no need for dma unprep because the nvme_transport
* owns the dma address.
*/
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (lpfc_ncmd->ts_cmd_start) {
lpfc_ncmd->ts_isr_cmpl = pwqeIn->isr_timestamp;
lpfc_ncmd->ts_data_io = ktime_get_ns();
phba->ktime_last_cmd = lpfc_ncmd->ts_data_io;
lpfc_io_ktime(phba, lpfc_ncmd);
}
if (unlikely(phba->hdwqstat_on & LPFC_CHECK_NVME_IO)) {
cpu = raw_smp_processor_id();
this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io);
if (lpfc_ncmd->cpu != cpu)
lpfc_printf_vlog(vport,
KERN_INFO, LOG_NVME_IOERR,
"6701 CPU Check cmpl: "
"cpu %d expect %d\n",
cpu, lpfc_ncmd->cpu);
}
#endif
/* NVME targets need completion held off until the abort exchange
* completes unless the NVME Rport is getting unregistered.
*/
if (!(lpfc_ncmd->flags & LPFC_SBUF_XBUSY)) {
freqpriv = nCmd->private;
freqpriv->nvme_buf = NULL;
lpfc_ncmd->nvmeCmd = NULL;
call_done = true;
}
spin_unlock(&lpfc_ncmd->buf_lock);
/* Check if IO qualified for CMF */
if (phba->cmf_active_mode != LPFC_CFG_OFF &&
nCmd->io_dir == NVMEFC_FCP_READ &&
nCmd->payload_length) {
/* Used when calculating average latency */
lat = ktime_get_ns() - lpfc_ncmd->rx_cmd_start;
lpfc_update_cmf_cmpl(phba, lat, nCmd->payload_length, NULL);
}
if (call_done)
nCmd->done(nCmd);
/* Call release with XB=1 to queue the IO into the abort list. */
lpfc_release_nvme_buf(phba, lpfc_ncmd);
}
/**
* lpfc_nvme_prep_io_cmd - Issue an NVME-over-FCP IO
* @vport: pointer to a host virtual N_Port data structure
* @lpfc_ncmd: Pointer to lpfc scsi command
* @pnode: pointer to a node-list data structure
* @cstat: pointer to the control status structure
*
* Driver registers this routine as it io request handler. This
* routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq
* data structure to the rport indicated in @lpfc_nvme_rport.
*
* Return value :
* 0 - Success
* TODO: What are the failure codes.
**/
static int
lpfc_nvme_prep_io_cmd(struct lpfc_vport *vport,
struct lpfc_io_buf *lpfc_ncmd,
struct lpfc_nodelist *pnode,
struct lpfc_fc4_ctrl_stat *cstat)
{
struct lpfc_hba *phba = vport->phba;
struct nvmefc_fcp_req *nCmd = lpfc_ncmd->nvmeCmd;
struct nvme_common_command *sqe;
struct lpfc_iocbq *pwqeq = &lpfc_ncmd->cur_iocbq;
union lpfc_wqe128 *wqe = &pwqeq->wqe;
uint32_t req_len;
/*
* There are three possibilities here - use scatter-gather segment, use
* the single mapping, or neither.
*/
if (nCmd->sg_cnt) {
if (nCmd->io_dir == NVMEFC_FCP_WRITE) {
/* From the iwrite template, initialize words 7 - 11 */
memcpy(&wqe->words[7],
&lpfc_iwrite_cmd_template.words[7],
sizeof(uint32_t) * 5);
/* Word 4 */
wqe->fcp_iwrite.total_xfer_len = nCmd->payload_length;
/* Word 5 */
if ((phba->cfg_nvme_enable_fb) &&
(pnode->nlp_flag & NLP_FIRSTBURST)) {
req_len = lpfc_ncmd->nvmeCmd->payload_length;
if (req_len < pnode->nvme_fb_size)
wqe->fcp_iwrite.initial_xfer_len =
req_len;
else
wqe->fcp_iwrite.initial_xfer_len =
pnode->nvme_fb_size;
} else {
wqe->fcp_iwrite.initial_xfer_len = 0;
}
cstat->output_requests++;
} else {
/* From the iread template, initialize words 7 - 11 */
memcpy(&wqe->words[7],
&lpfc_iread_cmd_template.words[7],
sizeof(uint32_t) * 5);
/* Word 4 */
wqe->fcp_iread.total_xfer_len = nCmd->payload_length;
/* Word 5 */
wqe->fcp_iread.rsrvd5 = 0;
/* For a CMF Managed port, iod must be zero'ed */
if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
bf_set(wqe_iod, &wqe->fcp_iread.wqe_com,
LPFC_WQE_IOD_NONE);
cstat->input_requests++;
}
} else {
/* From the icmnd template, initialize words 4 - 11 */
memcpy(&wqe->words[4], &lpfc_icmnd_cmd_template.words[4],
sizeof(uint32_t) * 8);
cstat->control_requests++;
}
if (pnode->nlp_nvme_info & NLP_NVME_NSLER) {
bf_set(wqe_erp, &wqe->generic.wqe_com, 1);
sqe = &((struct nvme_fc_cmd_iu *)
nCmd->cmdaddr)->sqe.common;
if (sqe->opcode == nvme_admin_async_event)
bf_set(wqe_ffrq, &wqe->generic.wqe_com, 1);
}
/*
* Finish initializing those WQE fields that are independent
* of the nvme_cmnd request_buffer
*/
/* Word 3 */
bf_set(payload_offset_len, &wqe->fcp_icmd,
(nCmd->rsplen + nCmd->cmdlen));
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
phba->sli4_hba.rpi_ids[pnode->nlp_rpi]);
bf_set(wqe_xri_tag, &wqe->generic.wqe_com, pwqeq->sli4_xritag);
/* Word 8 */
wqe->generic.wqe_com.abort_tag = pwqeq->iotag;
/* Word 9 */
bf_set(wqe_reqtag, &wqe->generic.wqe_com, pwqeq->iotag);
/* Word 10 */
bf_set(wqe_xchg, &wqe->fcp_iwrite.wqe_com, LPFC_NVME_XCHG);
/* Words 13 14 15 are for PBDE support */
/* add the VMID tags as per switch response */
if (unlikely(lpfc_ncmd->cur_iocbq.cmd_flag & LPFC_IO_VMID)) {
if (phba->pport->vmid_priority_tagging) {
bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
lpfc_ncmd->cur_iocbq.vmid_tag.cs_ctl_vmid);
} else {
bf_set(wqe_appid, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
wqe->words[31] = lpfc_ncmd->cur_iocbq.vmid_tag.app_id;
}
}
pwqeq->vport = vport;
return 0;
}
/**
* lpfc_nvme_prep_io_dma - Issue an NVME-over-FCP IO
* @vport: pointer to a host virtual N_Port data structure
* @lpfc_ncmd: Pointer to lpfc scsi command
*
* Driver registers this routine as it io request handler. This
* routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq
* data structure to the rport indicated in @lpfc_nvme_rport.
*
* Return value :
* 0 - Success
* TODO: What are the failure codes.
**/
static int
lpfc_nvme_prep_io_dma(struct lpfc_vport *vport,
struct lpfc_io_buf *lpfc_ncmd)
{
struct lpfc_hba *phba = vport->phba;
struct nvmefc_fcp_req *nCmd = lpfc_ncmd->nvmeCmd;
union lpfc_wqe128 *wqe = &lpfc_ncmd->cur_iocbq.wqe;
struct sli4_sge *sgl = lpfc_ncmd->dma_sgl;
struct sli4_hybrid_sgl *sgl_xtra = NULL;
struct scatterlist *data_sg;
struct sli4_sge *first_data_sgl;
struct ulp_bde64 *bde;
dma_addr_t physaddr = 0;
uint32_t dma_len = 0;
uint32_t dma_offset = 0;
int nseg, i, j;
bool lsp_just_set = false;
/* Fix up the command and response DMA stuff. */
lpfc_nvme_adj_fcp_sgls(vport, lpfc_ncmd, nCmd);
/*
* There are three possibilities here - use scatter-gather segment, use
* the single mapping, or neither.
*/
if (nCmd->sg_cnt) {
/*
* Jump over the cmd and rsp SGEs. The fix routine
* has already adjusted for this.
*/
sgl += 2;
first_data_sgl = sgl;
lpfc_ncmd->seg_cnt = nCmd->sg_cnt;
if (lpfc_ncmd->seg_cnt > lpfc_nvme_template.max_sgl_segments) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6058 Too many sg segments from "
"NVME Transport. Max %d, "
"nvmeIO sg_cnt %d\n",
phba->cfg_nvme_seg_cnt + 1,
lpfc_ncmd->seg_cnt);
lpfc_ncmd->seg_cnt = 0;
return 1;
}
/*
* The driver established a maximum scatter-gather segment count
* during probe that limits the number of sg elements in any
* single nvme command. Just run through the seg_cnt and format
* the sge's.
*/
nseg = nCmd->sg_cnt;
data_sg = nCmd->first_sgl;
/* for tracking the segment boundaries */
j = 2;
for (i = 0; i < nseg; i++) {
if (data_sg == NULL) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6059 dptr err %d, nseg %d\n",
i, nseg);
lpfc_ncmd->seg_cnt = 0;
return 1;
}
sgl->word2 = 0;
if (nseg == 1) {
bf_set(lpfc_sli4_sge_last, sgl, 1);
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_DATA);
} else {
bf_set(lpfc_sli4_sge_last, sgl, 0);
/* expand the segment */
if (!lsp_just_set &&
!((j + 1) % phba->border_sge_num) &&
((nseg - 1) != i)) {
/* set LSP type */
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_LSP);
sgl_xtra = lpfc_get_sgl_per_hdwq(
phba, lpfc_ncmd);
if (unlikely(!sgl_xtra)) {
lpfc_ncmd->seg_cnt = 0;
return 1;
}
sgl->addr_lo = cpu_to_le32(putPaddrLow(
sgl_xtra->dma_phys_sgl));
sgl->addr_hi = cpu_to_le32(putPaddrHigh(
sgl_xtra->dma_phys_sgl));
} else {
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_DATA);
}
}
if (!(bf_get(lpfc_sli4_sge_type, sgl) &
LPFC_SGE_TYPE_LSP)) {
if ((nseg - 1) == i)
bf_set(lpfc_sli4_sge_last, sgl, 1);
physaddr = sg_dma_address(data_sg);
dma_len = sg_dma_len(data_sg);
sgl->addr_lo = cpu_to_le32(
putPaddrLow(physaddr));
sgl->addr_hi = cpu_to_le32(
putPaddrHigh(physaddr));
bf_set(lpfc_sli4_sge_offset, sgl, dma_offset);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(dma_len);
dma_offset += dma_len;
data_sg = sg_next(data_sg);
sgl++;
lsp_just_set = false;
} else {
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(
phba->cfg_sg_dma_buf_size);
sgl = (struct sli4_sge *)sgl_xtra->dma_sgl;
i = i - 1;
lsp_just_set = true;
}
j++;
}
/* PBDE support for first data SGE only */
if (nseg == 1 && phba->cfg_enable_pbde) {
/* Words 13-15 */
bde = (struct ulp_bde64 *)
&wqe->words[13];
bde->addrLow = first_data_sgl->addr_lo;
bde->addrHigh = first_data_sgl->addr_hi;
bde->tus.f.bdeSize =
le32_to_cpu(first_data_sgl->sge_len);
bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
bde->tus.w = cpu_to_le32(bde->tus.w);
/* Word 11 - set PBDE bit */
bf_set(wqe_pbde, &wqe->generic.wqe_com, 1);
} else {
memset(&wqe->words[13], 0, (sizeof(uint32_t) * 3));
/* Word 11 - PBDE bit disabled by default template */
}
} else {
lpfc_ncmd->seg_cnt = 0;
/* For this clause to be valid, the payload_length
* and sg_cnt must zero.
*/
if (nCmd->payload_length != 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6063 NVME DMA Prep Err: sg_cnt %d "
"payload_length x%x\n",
nCmd->sg_cnt, nCmd->payload_length);
return 1;
}
}
return 0;
}
/**
* lpfc_nvme_fcp_io_submit - Issue an NVME-over-FCP IO
* @pnvme_lport: Pointer to the driver's local port data
* @pnvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq
* @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue
* @pnvme_fcreq: IO request from nvme fc to driver.
*
* Driver registers this routine as it io request handler. This
* routine issues an fcp WQE with data from the @lpfc_nvme_fcpreq
* data structure to the rport indicated in @lpfc_nvme_rport.
*
* Return value :
* 0 - Success
* TODO: What are the failure codes.
**/
static int
lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
struct nvme_fc_remote_port *pnvme_rport,
void *hw_queue_handle,
struct nvmefc_fcp_req *pnvme_fcreq)
{
int ret = 0;
int expedite = 0;
int idx, cpu;
struct lpfc_nvme_lport *lport;
struct lpfc_fc4_ctrl_stat *cstat;
struct lpfc_vport *vport;
struct lpfc_hba *phba;
struct lpfc_nodelist *ndlp;
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_nvme_rport *rport;
struct lpfc_nvme_qhandle *lpfc_queue_info;
struct lpfc_nvme_fcpreq_priv *freqpriv;
struct nvme_common_command *sqe;
uint64_t start = 0;
#if (IS_ENABLED(CONFIG_NVME_FC))
u8 *uuid = NULL;
int err;
enum dma_data_direction iodir;
#endif
/* Validate pointers. LLDD fault handling with transport does
* have timing races.
*/
lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
if (unlikely(!lport)) {
ret = -EINVAL;
goto out_fail;
}
vport = lport->vport;
if (unlikely(!hw_queue_handle)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6117 Fail IO, NULL hw_queue_handle\n");
atomic_inc(&lport->xmt_fcp_err);
ret = -EBUSY;
goto out_fail;
}
phba = vport->phba;
if ((unlikely(vport->load_flag & FC_UNLOADING)) ||
phba->hba_flag & HBA_IOQ_FLUSH) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6124 Fail IO, Driver unload\n");
atomic_inc(&lport->xmt_fcp_err);
ret = -ENODEV;
goto out_fail;
}
freqpriv = pnvme_fcreq->private;
if (unlikely(!freqpriv)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6158 Fail IO, NULL request data\n");
atomic_inc(&lport->xmt_fcp_err);
ret = -EINVAL;
goto out_fail;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (phba->ktime_on)
start = ktime_get_ns();
#endif
rport = (struct lpfc_nvme_rport *)pnvme_rport->private;
lpfc_queue_info = (struct lpfc_nvme_qhandle *)hw_queue_handle;
/*
* Catch race where our node has transitioned, but the
* transport is still transitioning.
*/
ndlp = rport->ndlp;
if (!ndlp) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_NVME_IOERR,
"6053 Busy IO, ndlp not ready: rport x%px "
"ndlp x%px, DID x%06x\n",
rport, ndlp, pnvme_rport->port_id);
atomic_inc(&lport->xmt_fcp_err);
ret = -EBUSY;
goto out_fail;
}
/* The remote node has to be a mapped target or it's an error. */
if ((ndlp->nlp_type & NLP_NVME_TARGET) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_NVME_IOERR,
"6036 Fail IO, DID x%06x not ready for "
"IO. State x%x, Type x%x Flg x%x\n",
pnvme_rport->port_id,
ndlp->nlp_state, ndlp->nlp_type,
ndlp->fc4_xpt_flags);
atomic_inc(&lport->xmt_fcp_bad_ndlp);
ret = -EBUSY;
goto out_fail;
}
/* Currently only NVME Keep alive commands should be expedited
* if the driver runs out of a resource. These should only be
* issued on the admin queue, qidx 0
*/
if (!lpfc_queue_info->qidx && !pnvme_fcreq->sg_cnt) {
sqe = &((struct nvme_fc_cmd_iu *)
pnvme_fcreq->cmdaddr)->sqe.common;
if (sqe->opcode == nvme_admin_keep_alive)
expedite = 1;
}
/* Check if IO qualifies for CMF */
if (phba->cmf_active_mode != LPFC_CFG_OFF &&
pnvme_fcreq->io_dir == NVMEFC_FCP_READ &&
pnvme_fcreq->payload_length) {
ret = lpfc_update_cmf_cmd(phba, pnvme_fcreq->payload_length);
if (ret) {
ret = -EBUSY;
goto out_fail;
}
/* Get start time for IO latency */
start = ktime_get_ns();
}
/* The node is shared with FCP IO, make sure the IO pending count does
* not exceed the programmed depth.
*/
if (lpfc_ndlp_check_qdepth(phba, ndlp)) {
if ((atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) &&
!expedite) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6174 Fail IO, ndlp qdepth exceeded: "
"idx %d DID %x pend %d qdepth %d\n",
lpfc_queue_info->index, ndlp->nlp_DID,
atomic_read(&ndlp->cmd_pending),
ndlp->cmd_qdepth);
atomic_inc(&lport->xmt_fcp_qdepth);
ret = -EBUSY;
goto out_fail1;
}
}
/* Lookup Hardware Queue index based on fcp_io_sched module parameter */
if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ) {
idx = lpfc_queue_info->index;
} else {
cpu = raw_smp_processor_id();
idx = phba->sli4_hba.cpu_map[cpu].hdwq;
}
lpfc_ncmd = lpfc_get_nvme_buf(phba, ndlp, idx, expedite);
if (lpfc_ncmd == NULL) {
atomic_inc(&lport->xmt_fcp_noxri);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6065 Fail IO, driver buffer pool is empty: "
"idx %d DID %x\n",
lpfc_queue_info->index, ndlp->nlp_DID);
ret = -EBUSY;
goto out_fail1;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (start) {
lpfc_ncmd->ts_cmd_start = start;
lpfc_ncmd->ts_last_cmd = phba->ktime_last_cmd;
} else {
lpfc_ncmd->ts_cmd_start = 0;
}
#endif
lpfc_ncmd->rx_cmd_start = start;
/*
* Store the data needed by the driver to issue, abort, and complete
* an IO.
* Do not let the IO hang out forever. There is no midlayer issuing
* an abort so inform the FW of the maximum IO pending time.
*/
freqpriv->nvme_buf = lpfc_ncmd;
lpfc_ncmd->nvmeCmd = pnvme_fcreq;
lpfc_ncmd->ndlp = ndlp;
lpfc_ncmd->qidx = lpfc_queue_info->qidx;
#if (IS_ENABLED(CONFIG_NVME_FC))
/* check the necessary and sufficient condition to support VMID */
if (lpfc_is_vmid_enabled(phba) &&
(ndlp->vmid_support ||
phba->pport->vmid_priority_tagging ==
LPFC_VMID_PRIO_TAG_ALL_TARGETS)) {
/* is the I/O generated by a VM, get the associated virtual */
/* entity id */
uuid = nvme_fc_io_getuuid(pnvme_fcreq);
if (uuid) {
if (pnvme_fcreq->io_dir == NVMEFC_FCP_WRITE)
iodir = DMA_TO_DEVICE;
else if (pnvme_fcreq->io_dir == NVMEFC_FCP_READ)
iodir = DMA_FROM_DEVICE;
else
iodir = DMA_NONE;
err = lpfc_vmid_get_appid(vport, uuid, iodir,
(union lpfc_vmid_io_tag *)
&lpfc_ncmd->cur_iocbq.vmid_tag);
if (!err)
lpfc_ncmd->cur_iocbq.cmd_flag |= LPFC_IO_VMID;
}
}
#endif
/*
* Issue the IO on the WQ indicated by index in the hw_queue_handle.
* This identfier was create in our hardware queue create callback
* routine. The driver now is dependent on the IO queue steering from
* the transport. We are trusting the upper NVME layers know which
* index to use and that they have affinitized a CPU to this hardware
* queue. A hardware queue maps to a driver MSI-X vector/EQ/CQ/WQ.
*/
lpfc_ncmd->cur_iocbq.hba_wqidx = idx;
cstat = &phba->sli4_hba.hdwq[idx].nvme_cstat;
lpfc_nvme_prep_io_cmd(vport, lpfc_ncmd, ndlp, cstat);
ret = lpfc_nvme_prep_io_dma(vport, lpfc_ncmd);
if (ret) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6175 Fail IO, Prep DMA: "
"idx %d DID %x\n",
lpfc_queue_info->index, ndlp->nlp_DID);
atomic_inc(&lport->xmt_fcp_err);
ret = -ENOMEM;
goto out_free_nvme_buf;
}
lpfc_nvmeio_data(phba, "NVME FCP XMIT: xri x%x idx %d to %06x\n",
lpfc_ncmd->cur_iocbq.sli4_xritag,
lpfc_queue_info->index, ndlp->nlp_DID);
ret = lpfc_sli4_issue_wqe(phba, lpfc_ncmd->hdwq, &lpfc_ncmd->cur_iocbq);
if (ret) {
atomic_inc(&lport->xmt_fcp_wqerr);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6113 Fail IO, Could not issue WQE err %x "
"sid: x%x did: x%x oxid: x%x\n",
ret, vport->fc_myDID, ndlp->nlp_DID,
lpfc_ncmd->cur_iocbq.sli4_xritag);
goto out_free_nvme_buf;
}
if (phba->cfg_xri_rebalancing)
lpfc_keep_pvt_pool_above_lowwm(phba, lpfc_ncmd->hdwq_no);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (lpfc_ncmd->ts_cmd_start)
lpfc_ncmd->ts_cmd_wqput = ktime_get_ns();
if (phba->hdwqstat_on & LPFC_CHECK_NVME_IO) {
cpu = raw_smp_processor_id();
this_cpu_inc(phba->sli4_hba.c_stat->xmt_io);
lpfc_ncmd->cpu = cpu;
if (idx != cpu)
lpfc_printf_vlog(vport,
KERN_INFO, LOG_NVME_IOERR,
"6702 CPU Check cmd: "
"cpu %d wq %d\n",
lpfc_ncmd->cpu,
lpfc_queue_info->index);
}
#endif
return 0;
out_free_nvme_buf:
if (lpfc_ncmd->nvmeCmd->sg_cnt) {
if (lpfc_ncmd->nvmeCmd->io_dir == NVMEFC_FCP_WRITE)
cstat->output_requests--;
else
cstat->input_requests--;
} else
cstat->control_requests--;
lpfc_release_nvme_buf(phba, lpfc_ncmd);
out_fail1:
lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT,
pnvme_fcreq->payload_length, NULL);
out_fail:
return ret;
}
/**
* lpfc_nvme_abort_fcreq_cmpl - Complete an NVME FCP abort request.
* @phba: Pointer to HBA context object
* @cmdiocb: Pointer to command iocb object.
* @rspiocb: Pointer to response iocb object.
*
* This is the callback function for any NVME FCP IO that was aborted.
*
* Return value:
* None
**/
void
lpfc_nvme_abort_fcreq_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_wcqe_complete *abts_cmpl = &rspiocb->wcqe_cmpl;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
"6145 ABORT_XRI_CN completing on rpi x%x "
"original iotag x%x, abort cmd iotag x%x "
"req_tag x%x, status x%x, hwstatus x%x\n",
bf_get(wqe_ctxt_tag, &cmdiocb->wqe.generic.wqe_com),
get_job_abtsiotag(phba, cmdiocb), cmdiocb->iotag,
bf_get(lpfc_wcqe_c_request_tag, abts_cmpl),
bf_get(lpfc_wcqe_c_status, abts_cmpl),
bf_get(lpfc_wcqe_c_hw_status, abts_cmpl));
lpfc_sli_release_iocbq(phba, cmdiocb);
}
/**
* lpfc_nvme_fcp_abort - Issue an NVME-over-FCP ABTS
* @pnvme_lport: Pointer to the driver's local port data
* @pnvme_rport: Pointer to the rport getting the @lpfc_nvme_ereq
* @hw_queue_handle: Driver-returned handle in lpfc_nvme_create_queue
* @pnvme_fcreq: IO request from nvme fc to driver.
*
* Driver registers this routine as its nvme request io abort handler. This
* routine issues an fcp Abort WQE with data from the @lpfc_nvme_fcpreq
* data structure to the rport indicated in @lpfc_nvme_rport. This routine
* is executed asynchronously - one the target is validated as "MAPPED" and
* ready for IO, the driver issues the abort request and returns.
*
* Return value:
* None
**/
static void
lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport,
struct nvme_fc_remote_port *pnvme_rport,
void *hw_queue_handle,
struct nvmefc_fcp_req *pnvme_fcreq)
{
struct lpfc_nvme_lport *lport;
struct lpfc_vport *vport;
struct lpfc_hba *phba;
struct lpfc_io_buf *lpfc_nbuf;
struct lpfc_iocbq *nvmereq_wqe;
struct lpfc_nvme_fcpreq_priv *freqpriv;
unsigned long flags;
int ret_val;
/* Validate pointers. LLDD fault handling with transport does
* have timing races.
*/
lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
if (unlikely(!lport))
return;
vport = lport->vport;
if (unlikely(!hw_queue_handle)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS,
"6129 Fail Abort, HW Queue Handle NULL.\n");
return;
}
phba = vport->phba;
freqpriv = pnvme_fcreq->private;
if (unlikely(!freqpriv))
return;
if (vport->load_flag & FC_UNLOADING)
return;
/* Announce entry to new IO submit field. */
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS,
"6002 Abort Request to rport DID x%06x "
"for nvme_fc_req x%px\n",
pnvme_rport->port_id,
pnvme_fcreq);
lpfc_nbuf = freqpriv->nvme_buf;
if (!lpfc_nbuf) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6140 NVME IO req has no matching lpfc nvme "
"io buffer. Skipping abort req.\n");
return;
} else if (!lpfc_nbuf->nvmeCmd) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6141 lpfc NVME IO req has no nvme_fcreq "
"io buffer. Skipping abort req.\n");
return;
}
/* Guard against IO completion being called at same time */
spin_lock_irqsave(&lpfc_nbuf->buf_lock, flags);
/* If the hba is getting reset, this flag is set. It is
* cleared when the reset is complete and rings reestablished.
*/
spin_lock(&phba->hbalock);
/* driver queued commands are in process of being flushed */
if (phba->hba_flag & HBA_IOQ_FLUSH) {
spin_unlock(&phba->hbalock);
spin_unlock_irqrestore(&lpfc_nbuf->buf_lock, flags);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6139 Driver in reset cleanup - flushing "
"NVME Req now. hba_flag x%x\n",
phba->hba_flag);
return;
}
nvmereq_wqe = &lpfc_nbuf->cur_iocbq;
/*
* The lpfc_nbuf and the mapped nvme_fcreq in the driver's
* state must match the nvme_fcreq passed by the nvme
* transport. If they don't match, it is likely the driver
* has already completed the NVME IO and the nvme transport
* has not seen it yet.
*/
if (lpfc_nbuf->nvmeCmd != pnvme_fcreq) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6143 NVME req mismatch: "
"lpfc_nbuf x%px nvmeCmd x%px, "
"pnvme_fcreq x%px. Skipping Abort xri x%x\n",
lpfc_nbuf, lpfc_nbuf->nvmeCmd,
pnvme_fcreq, nvmereq_wqe->sli4_xritag);
goto out_unlock;
}
/* Don't abort IOs no longer on the pending queue. */
if (!(nvmereq_wqe->cmd_flag & LPFC_IO_ON_TXCMPLQ)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6142 NVME IO req x%px not queued - skipping "
"abort req xri x%x\n",
pnvme_fcreq, nvmereq_wqe->sli4_xritag);
goto out_unlock;
}
atomic_inc(&lport->xmt_fcp_abort);
lpfc_nvmeio_data(phba, "NVME FCP ABORT: xri x%x idx %d to %06x\n",
nvmereq_wqe->sli4_xritag,
nvmereq_wqe->hba_wqidx, pnvme_rport->port_id);
/* Outstanding abort is in progress */
if (nvmereq_wqe->cmd_flag & LPFC_DRIVER_ABORTED) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6144 Outstanding NVME I/O Abort Request "
"still pending on nvme_fcreq x%px, "
"lpfc_ncmd x%px xri x%x\n",
pnvme_fcreq, lpfc_nbuf,
nvmereq_wqe->sli4_xritag);
goto out_unlock;
}
ret_val = lpfc_sli4_issue_abort_iotag(phba, nvmereq_wqe,
lpfc_nvme_abort_fcreq_cmpl);
spin_unlock(&phba->hbalock);
spin_unlock_irqrestore(&lpfc_nbuf->buf_lock, flags);
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
if (ret_val != WQE_SUCCESS) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6137 Failed abts issue_wqe with status x%x "
"for nvme_fcreq x%px.\n",
ret_val, pnvme_fcreq);
return;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS,
"6138 Transport Abort NVME Request Issued for "
"ox_id x%x\n",
nvmereq_wqe->sli4_xritag);
return;
out_unlock:
spin_unlock(&phba->hbalock);
spin_unlock_irqrestore(&lpfc_nbuf->buf_lock, flags);
return;
}
/* Declare and initialization an instance of the FC NVME template. */
static struct nvme_fc_port_template lpfc_nvme_template = {
/* initiator-based functions */
.localport_delete = lpfc_nvme_localport_delete,
.remoteport_delete = lpfc_nvme_remoteport_delete,
.create_queue = lpfc_nvme_create_queue,
.delete_queue = lpfc_nvme_delete_queue,
.ls_req = lpfc_nvme_ls_req,
.fcp_io = lpfc_nvme_fcp_io_submit,
.ls_abort = lpfc_nvme_ls_abort,
.fcp_abort = lpfc_nvme_fcp_abort,
.xmt_ls_rsp = lpfc_nvme_xmt_ls_rsp,
.max_hw_queues = 1,
.max_sgl_segments = LPFC_NVME_DEFAULT_SEGS,
.max_dif_sgl_segments = LPFC_NVME_DEFAULT_SEGS,
.dma_boundary = 0xFFFFFFFF,
/* Sizes of additional private data for data structures.
* No use for the last two sizes at this time.
*/
.local_priv_sz = sizeof(struct lpfc_nvme_lport),
.remote_priv_sz = sizeof(struct lpfc_nvme_rport),
.lsrqst_priv_sz = 0,
.fcprqst_priv_sz = sizeof(struct lpfc_nvme_fcpreq_priv),
};
/*
* lpfc_get_nvme_buf - Get a nvme buffer from io_buf_list of the HBA
*
* This routine removes a nvme buffer from head of @hdwq io_buf_list
* and returns to caller.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_nvme_buf - Success
**/
static struct lpfc_io_buf *
lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
int idx, int expedite)
{
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_sli4_hdw_queue *qp;
struct sli4_sge *sgl;
struct lpfc_iocbq *pwqeq;
union lpfc_wqe128 *wqe;
lpfc_ncmd = lpfc_get_io_buf(phba, NULL, idx, expedite);
if (lpfc_ncmd) {
pwqeq = &(lpfc_ncmd->cur_iocbq);
wqe = &pwqeq->wqe;
/* Setup key fields in buffer that may have been changed
* if other protocols used this buffer.
*/
pwqeq->cmd_flag = LPFC_IO_NVME;
pwqeq->cmd_cmpl = lpfc_nvme_io_cmd_cmpl;
lpfc_ncmd->start_time = jiffies;
lpfc_ncmd->flags = 0;
/* Rsp SGE will be filled in when we rcv an IO
* from the NVME Layer to be sent.
* The cmd is going to be embedded so we need a SKIP SGE.
*/
sgl = lpfc_ncmd->dma_sgl;
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_SKIP);
bf_set(lpfc_sli4_sge_last, sgl, 0);
sgl->word2 = cpu_to_le32(sgl->word2);
/* Fill in word 3 / sgl_len during cmd submission */
/* Initialize 64 bytes only */
memset(wqe, 0, sizeof(union lpfc_wqe));
if (lpfc_ndlp_check_qdepth(phba, ndlp)) {
atomic_inc(&ndlp->cmd_pending);
lpfc_ncmd->flags |= LPFC_SBUF_BUMP_QDEPTH;
}
} else {
qp = &phba->sli4_hba.hdwq[idx];
qp->empty_io_bufs++;
}
return lpfc_ncmd;
}
/**
* lpfc_release_nvme_buf: Return a nvme buffer back to hba nvme buf list.
* @phba: The Hba for which this call is being executed.
* @lpfc_ncmd: The nvme buffer which is being released.
*
* This routine releases @lpfc_ncmd nvme buffer by adding it to tail of @phba
* lpfc_io_buf_list list. For SLI4 XRI's are tied to the nvme buffer
* and cannot be reused for at least RA_TOV amount of time if it was
* aborted.
**/
static void
lpfc_release_nvme_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_ncmd)
{
struct lpfc_sli4_hdw_queue *qp;
unsigned long iflag = 0;
if ((lpfc_ncmd->flags & LPFC_SBUF_BUMP_QDEPTH) && lpfc_ncmd->ndlp)
atomic_dec(&lpfc_ncmd->ndlp->cmd_pending);
lpfc_ncmd->ndlp = NULL;
lpfc_ncmd->flags &= ~LPFC_SBUF_BUMP_QDEPTH;
qp = lpfc_ncmd->hdwq;
if (unlikely(lpfc_ncmd->flags & LPFC_SBUF_XBUSY)) {
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6310 XB release deferred for "
"ox_id x%x on reqtag x%x\n",
lpfc_ncmd->cur_iocbq.sli4_xritag,
lpfc_ncmd->cur_iocbq.iotag);
spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag);
list_add_tail(&lpfc_ncmd->list,
&qp->lpfc_abts_io_buf_list);
qp->abts_nvme_io_bufs++;
spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag);
} else
lpfc_release_io_buf(phba, (struct lpfc_io_buf *)lpfc_ncmd, qp);
}
/**
* lpfc_nvme_create_localport - Create/Bind an nvme localport instance.
* @vport: the lpfc_vport instance requesting a localport.
*
* This routine is invoked to create an nvme localport instance to bind
* to the nvme_fc_transport. It is called once during driver load
* like lpfc_create_shost after all other services are initialized.
* It requires a vport, vpi, and wwns at call time. Other localport
* parameters are modified as the driver's FCID and the Fabric WWN
* are established.
*
* Return codes
* 0 - successful
* -ENOMEM - no heap memory available
* other values - from nvme registration upcall
**/
int
lpfc_nvme_create_localport(struct lpfc_vport *vport)
{
int ret = 0;
struct lpfc_hba *phba = vport->phba;
struct nvme_fc_port_info nfcp_info;
struct nvme_fc_local_port *localport;
struct lpfc_nvme_lport *lport;
/* Initialize this localport instance. The vport wwn usage ensures
* that NPIV is accounted for.
*/
memset(&nfcp_info, 0, sizeof(struct nvme_fc_port_info));
nfcp_info.port_role = FC_PORT_ROLE_NVME_INITIATOR;
nfcp_info.node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
nfcp_info.port_name = wwn_to_u64(vport->fc_portname.u.wwn);
/* We need to tell the transport layer + 1 because it takes page
* alignment into account. When space for the SGL is allocated we
* allocate + 3, one for cmd, one for rsp and one for this alignment
*/
lpfc_nvme_template.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1;
/* Advertise how many hw queues we support based on cfg_hdw_queue,
* which will not exceed cpu count.
*/
lpfc_nvme_template.max_hw_queues = phba->cfg_hdw_queue;
if (!IS_ENABLED(CONFIG_NVME_FC))
return ret;
/* localport is allocated from the stack, but the registration
* call allocates heap memory as well as the private area.
*/
ret = nvme_fc_register_localport(&nfcp_info, &lpfc_nvme_template,
&vport->phba->pcidev->dev, &localport);
if (!ret) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME | LOG_NVME_DISC,
"6005 Successfully registered local "
"NVME port num %d, localP x%px, private "
"x%px, sg_seg %d\n",
localport->port_num, localport,
localport->private,
lpfc_nvme_template.max_sgl_segments);
/* Private is our lport size declared in the template. */
lport = (struct lpfc_nvme_lport *)localport->private;
vport->localport = localport;
lport->vport = vport;
vport->nvmei_support = 1;
atomic_set(&lport->xmt_fcp_noxri, 0);
atomic_set(&lport->xmt_fcp_bad_ndlp, 0);
atomic_set(&lport->xmt_fcp_qdepth, 0);
atomic_set(&lport->xmt_fcp_err, 0);
atomic_set(&lport->xmt_fcp_wqerr, 0);
atomic_set(&lport->xmt_fcp_abort, 0);
atomic_set(&lport->xmt_ls_abort, 0);
atomic_set(&lport->xmt_ls_err, 0);
atomic_set(&lport->cmpl_fcp_xb, 0);
atomic_set(&lport->cmpl_fcp_err, 0);
atomic_set(&lport->cmpl_ls_xb, 0);
atomic_set(&lport->cmpl_ls_err, 0);
atomic_set(&lport->fc4NvmeLsRequests, 0);
atomic_set(&lport->fc4NvmeLsCmpls, 0);
}
return ret;
}
#if (IS_ENABLED(CONFIG_NVME_FC))
/* lpfc_nvme_lport_unreg_wait - Wait for the host to complete an lport unreg.
*
* The driver has to wait for the host nvme transport to callback
* indicating the localport has successfully unregistered all
* resources. Since this is an uninterruptible wait, loop every ten
* seconds and print a message indicating no progress.
*
* An uninterruptible wait is used because of the risk of transport-to-
* driver state mismatch.
*/
static void
lpfc_nvme_lport_unreg_wait(struct lpfc_vport *vport,
struct lpfc_nvme_lport *lport,
struct completion *lport_unreg_cmp)
{
u32 wait_tmo;
int ret, i, pending = 0;
struct lpfc_sli_ring *pring;
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli4_hdw_queue *qp;
int abts_scsi, abts_nvme;
/* Host transport has to clean up and confirm requiring an indefinite
* wait. Print a message if a 10 second wait expires and renew the
* wait. This is unexpected.
*/
wait_tmo = msecs_to_jiffies(LPFC_NVME_WAIT_TMO * 1000);
while (true) {
ret = wait_for_completion_timeout(lport_unreg_cmp, wait_tmo);
if (unlikely(!ret)) {
pending = 0;
abts_scsi = 0;
abts_nvme = 0;
for (i = 0; i < phba->cfg_hdw_queue; i++) {
qp = &phba->sli4_hba.hdwq[i];
if (!vport->localport || !qp || !qp->io_wq)
return;
pring = qp->io_wq->pring;
if (!pring)
continue;
pending += pring->txcmplq_cnt;
abts_scsi += qp->abts_scsi_io_bufs;
abts_nvme += qp->abts_nvme_io_bufs;
}
if (!vport->localport ||
test_bit(HBA_PCI_ERR, &vport->phba->bit_flags) ||
phba->link_state == LPFC_HBA_ERROR ||
vport->load_flag & FC_UNLOADING)
return;
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6176 Lport x%px Localport x%px wait "
"timed out. Pending %d [%d:%d]. "
"Renewing.\n",
lport, vport->localport, pending,
abts_scsi, abts_nvme);
continue;
}
break;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
"6177 Lport x%px Localport x%px Complete Success\n",
lport, vport->localport);
}
#endif
/**
* lpfc_nvme_destroy_localport - Destroy lpfc_nvme bound to nvme transport.
* @vport: pointer to a host virtual N_Port data structure
*
* This routine is invoked to destroy all lports bound to the phba.
* The lport memory was allocated by the nvme fc transport and is
* released there. This routine ensures all rports bound to the
* lport have been disconnected.
*
**/
void
lpfc_nvme_destroy_localport(struct lpfc_vport *vport)
{
#if (IS_ENABLED(CONFIG_NVME_FC))
struct nvme_fc_local_port *localport;
struct lpfc_nvme_lport *lport;
int ret;
DECLARE_COMPLETION_ONSTACK(lport_unreg_cmp);
if (vport->nvmei_support == 0)
return;
localport = vport->localport;
if (!localport)
return;
lport = (struct lpfc_nvme_lport *)localport->private;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
"6011 Destroying NVME localport x%px\n",
localport);
/* lport's rport list is clear. Unregister
* lport and release resources.
*/
lport->lport_unreg_cmp = &lport_unreg_cmp;
ret = nvme_fc_unregister_localport(localport);
/* Wait for completion. This either blocks
* indefinitely or succeeds
*/
lpfc_nvme_lport_unreg_wait(vport, lport, &lport_unreg_cmp);
vport->localport = NULL;
/* Regardless of the unregister upcall response, clear
* nvmei_support. All rports are unregistered and the
* driver will clean up.
*/
vport->nvmei_support = 0;
if (ret == 0) {
lpfc_printf_vlog(vport,
KERN_INFO, LOG_NVME_DISC,
"6009 Unregistered lport Success\n");
} else {
lpfc_printf_vlog(vport,
KERN_INFO, LOG_NVME_DISC,
"6010 Unregistered lport "
"Failed, status x%x\n",
ret);
}
#endif
}
void
lpfc_nvme_update_localport(struct lpfc_vport *vport)
{
#if (IS_ENABLED(CONFIG_NVME_FC))
struct nvme_fc_local_port *localport;
struct lpfc_nvme_lport *lport;
localport = vport->localport;
if (!localport) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME,
"6710 Update NVME fail. No localport\n");
return;
}
lport = (struct lpfc_nvme_lport *)localport->private;
if (!lport) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME,
"6171 Update NVME fail. localP x%px, No lport\n",
localport);
return;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME,
"6012 Update NVME lport x%px did x%x\n",
localport, vport->fc_myDID);
localport->port_id = vport->fc_myDID;
if (localport->port_id == 0)
localport->port_role = FC_PORT_ROLE_NVME_DISCOVERY;
else
localport->port_role = FC_PORT_ROLE_NVME_INITIATOR;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6030 bound lport x%px to DID x%06x\n",
lport, localport->port_id);
#endif
}
int
lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
#if (IS_ENABLED(CONFIG_NVME_FC))
int ret = 0;
struct nvme_fc_local_port *localport;
struct lpfc_nvme_lport *lport;
struct lpfc_nvme_rport *rport;
struct lpfc_nvme_rport *oldrport;
struct nvme_fc_remote_port *remote_port;
struct nvme_fc_port_info rpinfo;
struct lpfc_nodelist *prev_ndlp = NULL;
struct fc_rport *srport = ndlp->rport;
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NVME_DISC,
"6006 Register NVME PORT. DID x%06x nlptype x%x\n",
ndlp->nlp_DID, ndlp->nlp_type);
localport = vport->localport;
if (!localport)
return 0;
lport = (struct lpfc_nvme_lport *)localport->private;
/* NVME rports are not preserved across devloss.
* Just register this instance. Note, rpinfo->dev_loss_tmo
* is left 0 to indicate accept transport defaults. The
* driver communicates port role capabilities consistent
* with the PRLI response data.
*/
memset(&rpinfo, 0, sizeof(struct nvme_fc_port_info));
rpinfo.port_id = ndlp->nlp_DID;
if (ndlp->nlp_type & NLP_NVME_TARGET)
rpinfo.port_role |= FC_PORT_ROLE_NVME_TARGET;
if (ndlp->nlp_type & NLP_NVME_INITIATOR)
rpinfo.port_role |= FC_PORT_ROLE_NVME_INITIATOR;
if (ndlp->nlp_type & NLP_NVME_DISCOVERY)
rpinfo.port_role |= FC_PORT_ROLE_NVME_DISCOVERY;
rpinfo.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
rpinfo.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
if (srport)
rpinfo.dev_loss_tmo = srport->dev_loss_tmo;
else
rpinfo.dev_loss_tmo = vport->cfg_devloss_tmo;
spin_lock_irq(&ndlp->lock);
/* If an oldrport exists, so does the ndlp reference. If not
* a new reference is needed because either the node has never
* been registered or it's been unregistered and getting deleted.
*/
oldrport = lpfc_ndlp_get_nrport(ndlp);
if (oldrport) {
prev_ndlp = oldrport->ndlp;
spin_unlock_irq(&ndlp->lock);
} else {
spin_unlock_irq(&ndlp->lock);
if (!lpfc_nlp_get(ndlp)) {
dev_warn(&vport->phba->pcidev->dev,
"Warning - No node ref - exit register\n");
return 0;
}
}
ret = nvme_fc_register_remoteport(localport, &rpinfo, &remote_port);
if (!ret) {
/* If the ndlp already has an nrport, this is just
* a resume of the existing rport. Else this is a
* new rport.
*/
/* Guard against an unregister/reregister
* race that leaves the WAIT flag set.
*/
spin_lock_irq(&ndlp->lock);
ndlp->fc4_xpt_flags &= ~NVME_XPT_UNREG_WAIT;
ndlp->fc4_xpt_flags |= NVME_XPT_REGD;
spin_unlock_irq(&ndlp->lock);
rport = remote_port->private;
if (oldrport) {
/* Sever the ndlp<->rport association
* before dropping the ndlp ref from
* register.
*/
spin_lock_irq(&ndlp->lock);
ndlp->nrport = NULL;
ndlp->fc4_xpt_flags &= ~NVME_XPT_UNREG_WAIT;
spin_unlock_irq(&ndlp->lock);
rport->ndlp = NULL;
rport->remoteport = NULL;
/* Reference only removed if previous NDLP is no longer
* active. It might be just a swap and removing the
* reference would cause a premature cleanup.
*/
if (prev_ndlp && prev_ndlp != ndlp) {
if (!prev_ndlp->nrport)
lpfc_nlp_put(prev_ndlp);
}
}
/* Clean bind the rport to the ndlp. */
rport->remoteport = remote_port;
rport->lport = lport;
rport->ndlp = ndlp;
spin_lock_irq(&ndlp->lock);
ndlp->nrport = rport;
spin_unlock_irq(&ndlp->lock);
lpfc_printf_vlog(vport, KERN_INFO,
LOG_NVME_DISC | LOG_NODE,
"6022 Bind lport x%px to remoteport x%px "
"rport x%px WWNN 0x%llx, "
"Rport WWPN 0x%llx DID "
"x%06x Role x%x, ndlp %p prev_ndlp x%px\n",
lport, remote_port, rport,
rpinfo.node_name, rpinfo.port_name,
rpinfo.port_id, rpinfo.port_role,
ndlp, prev_ndlp);
} else {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"6031 RemotePort Registration failed "
"err: %d, DID x%06x ref %u\n",
ret, ndlp->nlp_DID, kref_read(&ndlp->kref));
lpfc_nlp_put(ndlp);
}
return ret;
#else
return 0;
#endif
}
/*
* lpfc_nvme_rescan_port - Check to see if we should rescan this remoteport
*
* If the ndlp represents an NVME Target, that we are logged into,
* ping the NVME FC Transport layer to initiate a device rescan
* on this remote NPort.
*/
void
lpfc_nvme_rescan_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
#if (IS_ENABLED(CONFIG_NVME_FC))
struct lpfc_nvme_rport *nrport;
struct nvme_fc_remote_port *remoteport = NULL;
spin_lock_irq(&ndlp->lock);
nrport = lpfc_ndlp_get_nrport(ndlp);
if (nrport)
remoteport = nrport->remoteport;
spin_unlock_irq(&ndlp->lock);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6170 Rescan NPort DID x%06x type x%x "
"state x%x nrport x%px remoteport x%px\n",
ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_state,
nrport, remoteport);
if (!nrport || !remoteport)
goto rescan_exit;
/* Rescan an NVME target in MAPPED state with DISCOVERY role set */
if (remoteport->port_role & FC_PORT_ROLE_NVME_DISCOVERY &&
ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
nvme_fc_rescan_remoteport(remoteport);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6172 NVME rescanned DID x%06x "
"port_state x%x\n",
ndlp->nlp_DID, remoteport->port_state);
}
return;
rescan_exit:
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6169 Skip NVME Rport Rescan, NVME remoteport "
"unregistered\n");
#endif
}
/* lpfc_nvme_unregister_port - unbind the DID and port_role from this rport.
*
* There is no notion of Devloss or rport recovery from the current
* nvme_transport perspective. Loss of an rport just means IO cannot
* be sent and recovery is completely up to the initator.
* For now, the driver just unbinds the DID and port_role so that
* no further IO can be issued.
*/
void
lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
#if (IS_ENABLED(CONFIG_NVME_FC))
int ret;
struct nvme_fc_local_port *localport;
struct lpfc_nvme_lport *lport;
struct lpfc_nvme_rport *rport;
struct nvme_fc_remote_port *remoteport = NULL;
localport = vport->localport;
/* This is fundamental error. The localport is always
* available until driver unload. Just exit.
*/
if (!localport)
return;
lport = (struct lpfc_nvme_lport *)localport->private;
if (!lport)
goto input_err;
spin_lock_irq(&ndlp->lock);
rport = lpfc_ndlp_get_nrport(ndlp);
if (rport)
remoteport = rport->remoteport;
spin_unlock_irq(&ndlp->lock);
if (!remoteport)
goto input_err;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6033 Unreg nvme remoteport x%px, portname x%llx, "
"port_id x%06x, portstate x%x port type x%x "
"refcnt %d\n",
remoteport, remoteport->port_name,
remoteport->port_id, remoteport->port_state,
ndlp->nlp_type, kref_read(&ndlp->kref));
/* Sanity check ndlp type. Only call for NVME ports. Don't
* clear any rport state until the transport calls back.
*/
if (ndlp->nlp_type & NLP_NVME_TARGET) {
/* No concern about the role change on the nvme remoteport.
* The transport will update it.
*/
spin_lock_irq(&vport->phba->hbalock);
ndlp->fc4_xpt_flags |= NVME_XPT_UNREG_WAIT;
spin_unlock_irq(&vport->phba->hbalock);
/* Don't let the host nvme transport keep sending keep-alives
* on this remoteport. Vport is unloading, no recovery. The
* return values is ignored. The upcall is a courtesy to the
* transport.
*/
if (vport->load_flag & FC_UNLOADING ||
unlikely(vport->phba->link_state == LPFC_HBA_ERROR))
(void)nvme_fc_set_remoteport_devloss(remoteport, 0);
ret = nvme_fc_unregister_remoteport(remoteport);
/* The driver no longer knows if the nrport memory is valid.
* because the controller teardown process has begun and
* is asynchronous. Break the binding in the ndlp. Also
* remove the register ndlp reference to setup node release.
*/
ndlp->nrport = NULL;
lpfc_nlp_put(ndlp);
if (ret != 0) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6167 NVME unregister failed %d "
"port_state x%x\n",
ret, remoteport->port_state);
if (vport->load_flag & FC_UNLOADING) {
/* Only 1 thread can drop the initial node
* reference. Check if another thread has set
* NLP_DROPPED.
*/
spin_lock_irq(&ndlp->lock);
if (!(ndlp->nlp_flag & NLP_DROPPED)) {
ndlp->nlp_flag |= NLP_DROPPED;
spin_unlock_irq(&ndlp->lock);
lpfc_nlp_put(ndlp);
return;
}
spin_unlock_irq(&ndlp->lock);
}
}
}
return;
input_err:
#endif
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6168 State error: lport x%px, rport x%px FCID x%06x\n",
vport->localport, ndlp->rport, ndlp->nlp_DID);
}
/**
* lpfc_sli4_nvme_pci_offline_aborted - Fast-path process of NVME xri abort
* @phba: pointer to lpfc hba data structure.
* @lpfc_ncmd: The nvme job structure for the request being aborted.
*
* This routine is invoked by the worker thread to process a SLI4 fast-path
* NVME aborted xri. Aborted NVME IO commands are completed to the transport
* here.
**/
void
lpfc_sli4_nvme_pci_offline_aborted(struct lpfc_hba *phba,
struct lpfc_io_buf *lpfc_ncmd)
{
struct nvmefc_fcp_req *nvme_cmd = NULL;
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6533 %s nvme_cmd %p tag x%x abort complete and "
"xri released\n", __func__,
lpfc_ncmd->nvmeCmd,
lpfc_ncmd->cur_iocbq.iotag);
/* Aborted NVME commands are required to not complete
* before the abort exchange command fully completes.
* Once completed, it is available via the put list.
*/
if (lpfc_ncmd->nvmeCmd) {
nvme_cmd = lpfc_ncmd->nvmeCmd;
nvme_cmd->transferred_length = 0;
nvme_cmd->rcv_rsplen = 0;
nvme_cmd->status = NVME_SC_INTERNAL;
nvme_cmd->done(nvme_cmd);
lpfc_ncmd->nvmeCmd = NULL;
}
lpfc_release_nvme_buf(phba, lpfc_ncmd);
}
/**
* lpfc_sli4_nvme_xri_aborted - Fast-path process of NVME xri abort
* @phba: pointer to lpfc hba data structure.
* @axri: pointer to the fcp xri abort wcqe structure.
* @lpfc_ncmd: The nvme job structure for the request being aborted.
*
* This routine is invoked by the worker thread to process a SLI4 fast-path
* NVME aborted xri. Aborted NVME IO commands are completed to the transport
* here.
**/
void
lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba,
struct sli4_wcqe_xri_aborted *axri,
struct lpfc_io_buf *lpfc_ncmd)
{
uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
struct nvmefc_fcp_req *nvme_cmd = NULL;
struct lpfc_nodelist *ndlp = lpfc_ncmd->ndlp;
if (ndlp)
lpfc_sli4_abts_err_handler(phba, ndlp, axri);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
"6311 nvme_cmd %p xri x%x tag x%x abort complete and "
"xri released\n",
lpfc_ncmd->nvmeCmd, xri,
lpfc_ncmd->cur_iocbq.iotag);
/* Aborted NVME commands are required to not complete
* before the abort exchange command fully completes.
* Once completed, it is available via the put list.
*/
if (lpfc_ncmd->nvmeCmd) {
nvme_cmd = lpfc_ncmd->nvmeCmd;
nvme_cmd->done(nvme_cmd);
lpfc_ncmd->nvmeCmd = NULL;
}
lpfc_release_nvme_buf(phba, lpfc_ncmd);
}
/**
* lpfc_nvme_wait_for_io_drain - Wait for all NVME wqes to complete
* @phba: Pointer to HBA context object.
*
* This function flushes all wqes in the nvme rings and frees all resources
* in the txcmplq. This function does not issue abort wqes for the IO
* commands in txcmplq, they will just be returned with
* IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
* slot has been permanently disabled.
**/
void
lpfc_nvme_wait_for_io_drain(struct lpfc_hba *phba)
{
struct lpfc_sli_ring *pring;
u32 i, wait_cnt = 0;
if (phba->sli_rev < LPFC_SLI_REV4 || !phba->sli4_hba.hdwq)
return;
/* Cycle through all IO rings and make sure all outstanding
* WQEs have been removed from the txcmplqs.
*/
for (i = 0; i < phba->cfg_hdw_queue; i++) {
if (!phba->sli4_hba.hdwq[i].io_wq)
continue;
pring = phba->sli4_hba.hdwq[i].io_wq->pring;
if (!pring)
continue;
/* Retrieve everything on the txcmplq */
while (!list_empty(&pring->txcmplq)) {
msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
wait_cnt++;
/* The sleep is 10mS. Every ten seconds,
* dump a message. Something is wrong.
*/
if ((wait_cnt % 1000) == 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6178 NVME IO not empty, "
"cnt %d\n", wait_cnt);
}
}
}
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
}
void
lpfc_nvme_cancel_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
uint32_t stat, uint32_t param)
{
#if (IS_ENABLED(CONFIG_NVME_FC))
struct lpfc_io_buf *lpfc_ncmd;
struct nvmefc_fcp_req *nCmd;
struct lpfc_wcqe_complete wcqe;
struct lpfc_wcqe_complete *wcqep = &wcqe;
lpfc_ncmd = pwqeIn->io_buf;
if (!lpfc_ncmd) {
lpfc_sli_release_iocbq(phba, pwqeIn);
return;
}
/* For abort iocb just return, IO iocb will do a done call */
if (bf_get(wqe_cmnd, &pwqeIn->wqe.gen_req.wqe_com) ==
CMD_ABORT_XRI_CX) {
lpfc_sli_release_iocbq(phba, pwqeIn);
return;
}
spin_lock(&lpfc_ncmd->buf_lock);
nCmd = lpfc_ncmd->nvmeCmd;
if (!nCmd) {
spin_unlock(&lpfc_ncmd->buf_lock);
lpfc_release_nvme_buf(phba, lpfc_ncmd);
return;
}
spin_unlock(&lpfc_ncmd->buf_lock);
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_IOERR,
"6194 NVME Cancel xri %x\n",
lpfc_ncmd->cur_iocbq.sli4_xritag);
wcqep->word0 = 0;
bf_set(lpfc_wcqe_c_status, wcqep, stat);
wcqep->parameter = param;
wcqep->total_data_placed = 0;
wcqep->word3 = 0; /* xb is 0 */
/* Call release with XB=1 to queue the IO into the abort list. */
if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
bf_set(lpfc_wcqe_c_xb, wcqep, 1);
memcpy(&pwqeIn->wcqe_cmpl, wcqep, sizeof(*wcqep));
(pwqeIn->cmd_cmpl)(phba, pwqeIn, pwqeIn);
#endif
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_nvme.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/interrupt.h>
#include <linux/dma-direction.h>
#include <scsi/scsi_transport_fc.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_crtn.h"
/*
* lpfc_get_vmid_from_hashtable - search the UUID in the hash table
* @vport: The virtual port for which this call is being executed.
* @hash: calculated hash value
* @buf: uuid associated with the VE
* Return the VMID entry associated with the UUID
* Make sure to acquire the appropriate lock before invoking this routine.
*/
struct lpfc_vmid *lpfc_get_vmid_from_hashtable(struct lpfc_vport *vport,
u32 hash, u8 *buf)
{
struct lpfc_vmid *vmp;
hash_for_each_possible(vport->hash_table, vmp, hnode, hash) {
if (memcmp(&vmp->host_vmid[0], buf, 16) == 0)
return vmp;
}
return NULL;
}
/*
* lpfc_put_vmid_in_hashtable - put the VMID in the hash table
* @vport: The virtual port for which this call is being executed.
* @hash - calculated hash value
* @vmp: Pointer to a VMID entry representing a VM sending I/O
*
* This routine will insert the newly acquired VMID entity in the hash table.
* Make sure to acquire the appropriate lock before invoking this routine.
*/
static void
lpfc_put_vmid_in_hashtable(struct lpfc_vport *vport, u32 hash,
struct lpfc_vmid *vmp)
{
hash_add(vport->hash_table, &vmp->hnode, hash);
}
/*
* lpfc_vmid_hash_fn - create a hash value of the UUID
* @vmid: uuid associated with the VE
* @len: length of the VMID string
* Returns the calculated hash value
*/
int lpfc_vmid_hash_fn(const char *vmid, int len)
{
int c;
int hash = 0;
if (len == 0)
return 0;
while (len--) {
c = *vmid++;
if (c >= 'A' && c <= 'Z')
c += 'a' - 'A';
hash = (hash + (c << LPFC_VMID_HASH_SHIFT) +
(c >> LPFC_VMID_HASH_SHIFT)) * 19;
}
return hash & LPFC_VMID_HASH_MASK;
}
/*
* lpfc_vmid_update_entry - update the vmid entry in the hash table
* @vport: The virtual port for which this call is being executed.
* @iodir: io direction
* @vmp: Pointer to a VMID entry representing a VM sending I/O
* @tag: VMID tag
*/
static void lpfc_vmid_update_entry(struct lpfc_vport *vport,
enum dma_data_direction iodir,
struct lpfc_vmid *vmp,
union lpfc_vmid_io_tag *tag)
{
u64 *lta;
if (vport->phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO)
tag->cs_ctl_vmid = vmp->un.cs_ctl_vmid;
else if (vport->phba->cfg_vmid_app_header)
tag->app_id = vmp->un.app_id;
if (iodir == DMA_TO_DEVICE)
vmp->io_wr_cnt++;
else if (iodir == DMA_FROM_DEVICE)
vmp->io_rd_cnt++;
/* update the last access timestamp in the table */
lta = per_cpu_ptr(vmp->last_io_time, raw_smp_processor_id());
*lta = jiffies;
}
static void lpfc_vmid_assign_cs_ctl(struct lpfc_vport *vport,
struct lpfc_vmid *vmid)
{
u32 hash;
struct lpfc_vmid *pvmid;
if (vport->port_type == LPFC_PHYSICAL_PORT) {
vmid->un.cs_ctl_vmid = lpfc_vmid_get_cs_ctl(vport);
} else {
hash = lpfc_vmid_hash_fn(vmid->host_vmid, vmid->vmid_len);
pvmid =
lpfc_get_vmid_from_hashtable(vport->phba->pport, hash,
vmid->host_vmid);
if (pvmid)
vmid->un.cs_ctl_vmid = pvmid->un.cs_ctl_vmid;
else
vmid->un.cs_ctl_vmid = lpfc_vmid_get_cs_ctl(vport);
}
}
/*
* lpfc_vmid_get_appid - get the VMID associated with the UUID
* @vport: The virtual port for which this call is being executed.
* @uuid: UUID associated with the VE
* @cmd: address of scsi_cmd descriptor
* @iodir: io direction
* @tag: VMID tag
* Returns status of the function
*/
int lpfc_vmid_get_appid(struct lpfc_vport *vport, char *uuid,
enum dma_data_direction iodir,
union lpfc_vmid_io_tag *tag)
{
struct lpfc_vmid *vmp = NULL;
int hash, len, rc = -EPERM, i;
/* check if QFPA is complete */
if (lpfc_vmid_is_type_priority_tag(vport) &&
!(vport->vmid_flag & LPFC_VMID_QFPA_CMPL) &&
(vport->vmid_flag & LPFC_VMID_ISSUE_QFPA)) {
vport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
return -EAGAIN;
}
/* search if the UUID has already been mapped to the VMID */
len = strlen(uuid);
hash = lpfc_vmid_hash_fn(uuid, len);
/* search for the VMID in the table */
read_lock(&vport->vmid_lock);
vmp = lpfc_get_vmid_from_hashtable(vport, hash, uuid);
/* if found, check if its already registered */
if (vmp && vmp->flag & LPFC_VMID_REGISTERED) {
read_unlock(&vport->vmid_lock);
lpfc_vmid_update_entry(vport, iodir, vmp, tag);
rc = 0;
} else if (vmp && (vmp->flag & LPFC_VMID_REQ_REGISTER ||
vmp->flag & LPFC_VMID_DE_REGISTER)) {
/* else if register or dereg request has already been sent */
/* Hence VMID tag will not be added for this I/O */
read_unlock(&vport->vmid_lock);
rc = -EBUSY;
} else {
/* The VMID was not found in the hashtable. At this point, */
/* drop the read lock first before proceeding further */
read_unlock(&vport->vmid_lock);
/* start the process to obtain one as per the */
/* type of the VMID indicated */
write_lock(&vport->vmid_lock);
vmp = lpfc_get_vmid_from_hashtable(vport, hash, uuid);
/* while the read lock was released, in case the entry was */
/* added by other context or is in process of being added */
if (vmp && vmp->flag & LPFC_VMID_REGISTERED) {
lpfc_vmid_update_entry(vport, iodir, vmp, tag);
write_unlock(&vport->vmid_lock);
return 0;
} else if (vmp && vmp->flag & LPFC_VMID_REQ_REGISTER) {
write_unlock(&vport->vmid_lock);
return -EBUSY;
}
/* else search and allocate a free slot in the hash table */
if (vport->cur_vmid_cnt < vport->max_vmid) {
for (i = 0; i < vport->max_vmid; i++) {
vmp = vport->vmid + i;
if (vmp->flag == LPFC_VMID_SLOT_FREE)
break;
}
if (i == vport->max_vmid)
vmp = NULL;
} else {
vmp = NULL;
}
if (!vmp) {
write_unlock(&vport->vmid_lock);
return -ENOMEM;
}
/* Add the vmid and register */
lpfc_put_vmid_in_hashtable(vport, hash, vmp);
vmp->vmid_len = len;
memcpy(vmp->host_vmid, uuid, vmp->vmid_len);
vmp->io_rd_cnt = 0;
vmp->io_wr_cnt = 0;
vmp->flag = LPFC_VMID_SLOT_USED;
vmp->delete_inactive =
vport->vmid_inactivity_timeout ? 1 : 0;
/* if type priority tag, get next available VMID */
if (vport->phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO)
lpfc_vmid_assign_cs_ctl(vport, vmp);
/* allocate the per cpu variable for holding */
/* the last access time stamp only if VMID is enabled */
if (!vmp->last_io_time)
vmp->last_io_time = alloc_percpu_gfp(u64, GFP_ATOMIC);
if (!vmp->last_io_time) {
hash_del(&vmp->hnode);
vmp->flag = LPFC_VMID_SLOT_FREE;
write_unlock(&vport->vmid_lock);
return -EIO;
}
write_unlock(&vport->vmid_lock);
/* complete transaction with switch */
if (vport->phba->pport->vmid_flag & LPFC_VMID_TYPE_PRIO)
rc = lpfc_vmid_uvem(vport, vmp, true);
else if (vport->phba->cfg_vmid_app_header)
rc = lpfc_vmid_cmd(vport, SLI_CTAS_RAPP_IDENT, vmp);
if (!rc) {
write_lock(&vport->vmid_lock);
vport->cur_vmid_cnt++;
vmp->flag |= LPFC_VMID_REQ_REGISTER;
write_unlock(&vport->vmid_lock);
} else {
write_lock(&vport->vmid_lock);
hash_del(&vmp->hnode);
vmp->flag = LPFC_VMID_SLOT_FREE;
free_percpu(vmp->last_io_time);
write_unlock(&vport->vmid_lock);
return -EIO;
}
/* finally, enable the idle timer once */
if (!(vport->phba->pport->vmid_flag & LPFC_VMID_TIMER_ENBLD)) {
mod_timer(&vport->phba->inactive_vmid_poll,
jiffies +
msecs_to_jiffies(1000 * LPFC_VMID_TIMER));
vport->phba->pport->vmid_flag |= LPFC_VMID_TIMER_ENBLD;
}
}
return rc;
}
/*
* lpfc_reinit_vmid - reinitializes the vmid data structure
* @vport: pointer to vport data structure
*
* This routine reinitializes the vmid post flogi completion
*
* Return codes
* None
*/
void
lpfc_reinit_vmid(struct lpfc_vport *vport)
{
u32 bucket, i, cpu;
struct lpfc_vmid *cur;
struct lpfc_vmid *vmp = NULL;
struct hlist_node *tmp;
write_lock(&vport->vmid_lock);
vport->cur_vmid_cnt = 0;
for (i = 0; i < vport->max_vmid; i++) {
vmp = &vport->vmid[i];
vmp->flag = LPFC_VMID_SLOT_FREE;
memset(vmp->host_vmid, 0, sizeof(vmp->host_vmid));
vmp->io_rd_cnt = 0;
vmp->io_wr_cnt = 0;
if (vmp->last_io_time)
for_each_possible_cpu(cpu)
*per_cpu_ptr(vmp->last_io_time, cpu) = 0;
}
/* for all elements in the hash table */
if (!hash_empty(vport->hash_table))
hash_for_each_safe(vport->hash_table, bucket, tmp, cur, hnode)
hash_del(&cur->hnode);
write_unlock(&vport->vmid_lock);
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_vmid.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"
/* Called to verify a rcv'ed ADISC was intended for us. */
static int
lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_name *nn, struct lpfc_name *pn)
{
/* First, we MUST have a RPI registered */
if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED))
return 0;
/* Compare the ADISC rsp WWNN / WWPN matches our internal node
* table entry for that node.
*/
if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name)))
return 0;
if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)))
return 0;
/* we match, return success */
return 1;
}
int
lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct serv_parm *sp, uint32_t class, int flogi)
{
volatile struct serv_parm *hsp = &vport->fc_sparam;
uint16_t hsp_value, ssp_value = 0;
/*
* The receive data field size and buffer-to-buffer receive data field
* size entries are 16 bits but are represented as two 8-bit fields in
* the driver data structure to account for rsvd bits and other control
* bits. Reconstruct and compare the fields as a 16-bit values before
* correcting the byte values.
*/
if (sp->cls1.classValid) {
if (!flogi) {
hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) |
hsp->cls1.rcvDataSizeLsb);
ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) |
sp->cls1.rcvDataSizeLsb);
if (!ssp_value)
goto bad_service_param;
if (ssp_value > hsp_value) {
sp->cls1.rcvDataSizeLsb =
hsp->cls1.rcvDataSizeLsb;
sp->cls1.rcvDataSizeMsb =
hsp->cls1.rcvDataSizeMsb;
}
}
} else if (class == CLASS1)
goto bad_service_param;
if (sp->cls2.classValid) {
if (!flogi) {
hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) |
hsp->cls2.rcvDataSizeLsb);
ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) |
sp->cls2.rcvDataSizeLsb);
if (!ssp_value)
goto bad_service_param;
if (ssp_value > hsp_value) {
sp->cls2.rcvDataSizeLsb =
hsp->cls2.rcvDataSizeLsb;
sp->cls2.rcvDataSizeMsb =
hsp->cls2.rcvDataSizeMsb;
}
}
} else if (class == CLASS2)
goto bad_service_param;
if (sp->cls3.classValid) {
if (!flogi) {
hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) |
hsp->cls3.rcvDataSizeLsb);
ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) |
sp->cls3.rcvDataSizeLsb);
if (!ssp_value)
goto bad_service_param;
if (ssp_value > hsp_value) {
sp->cls3.rcvDataSizeLsb =
hsp->cls3.rcvDataSizeLsb;
sp->cls3.rcvDataSizeMsb =
hsp->cls3.rcvDataSizeMsb;
}
}
} else if (class == CLASS3)
goto bad_service_param;
/*
* Preserve the upper four bits of the MSB from the PLOGI response.
* These bits contain the Buffer-to-Buffer State Change Number
* from the target and need to be passed to the FW.
*/
hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb;
ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb;
if (ssp_value > hsp_value) {
sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb;
sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) |
(hsp->cmn.bbRcvSizeMsb & 0x0F);
}
memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name));
memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name));
return 1;
bad_service_param:
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0207 Device %x "
"(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent "
"invalid service parameters. Ignoring device.\n",
ndlp->nlp_DID,
sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1],
sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3],
sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5],
sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]);
return 0;
}
static void *
lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_dmabuf *pcmd, *prsp;
uint32_t *lp;
void *ptr = NULL;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
pcmd = cmdiocb->cmd_dmabuf;
/* For lpfc_els_abort, cmd_dmabuf could be zero'ed to delay
* freeing associated memory till after ABTS completes.
*/
if (pcmd) {
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf,
list);
if (prsp) {
lp = (uint32_t *) prsp->virt;
ptr = (void *)((uint8_t *)lp + sizeof(uint32_t));
}
} else {
/* Force ulp_status error since we are returning NULL ptr */
if (!(ulp_status)) {
if (phba->sli_rev == LPFC_SLI_REV4) {
bf_set(lpfc_wcqe_c_status, &rspiocb->wcqe_cmpl,
IOSTAT_LOCAL_REJECT);
rspiocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED;
} else {
rspiocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
rspiocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED;
}
}
ptr = NULL;
}
return ptr;
}
/*
* Free resources / clean up outstanding I/Os
* associated with a LPFC_NODELIST entry. This
* routine effectively results in a "software abort".
*/
void
lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
LIST_HEAD(abort_list);
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *iocb, *next_iocb;
pring = lpfc_phba_elsring(phba);
/* In case of error recovery path, we might have a NULL pring here */
if (unlikely(!pring))
return;
/* Abort outstanding I/O on NPort <nlp_DID> */
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY,
"2819 Abort outstanding I/O on NPort x%x "
"Data: x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi);
/* Clean up all fabric IOs first.*/
lpfc_fabric_abort_nport(ndlp);
/*
* Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list
* of all ELS IOs that need an ABTS. The IOs need to stay on the
* txcmplq so that the abort operation completes them successfully.
*/
spin_lock_irq(&phba->hbalock);
if (phba->sli_rev == LPFC_SLI_REV4)
spin_lock(&pring->ring_lock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
/* Add to abort_list on on NDLP match. */
if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
list_add_tail(&iocb->dlist, &abort_list);
}
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring->ring_lock);
spin_unlock_irq(&phba->hbalock);
/* Abort the targeted IOs and remove them from the abort list. */
list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) {
spin_lock_irq(&phba->hbalock);
list_del_init(&iocb->dlist);
lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
spin_unlock_irq(&phba->hbalock);
}
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
INIT_LIST_HEAD(&abort_list);
/* Now process the txq */
spin_lock_irq(&phba->hbalock);
if (phba->sli_rev == LPFC_SLI_REV4)
spin_lock(&pring->ring_lock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
/* Check to see if iocb matches the nport we are looking for */
if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) {
list_del_init(&iocb->list);
list_add_tail(&iocb->list, &abort_list);
}
}
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring->ring_lock);
spin_unlock_irq(&phba->hbalock);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &abort_list,
IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
}
/* lpfc_defer_plogi_acc - Issue PLOGI ACC after reg_login completes
* @phba: pointer to lpfc hba data structure.
* @login_mbox: pointer to REG_RPI mailbox object
*
* The ACC for a rcv'ed PLOGI is deferred until AFTER the REG_RPI completes
*/
static void
lpfc_defer_plogi_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *login_mbox)
{
struct lpfc_iocbq *save_iocb;
struct lpfc_nodelist *ndlp;
MAILBOX_t *mb = &login_mbox->u.mb;
int rc;
ndlp = login_mbox->ctx_ndlp;
save_iocb = login_mbox->context3;
if (mb->mbxStatus == MBX_SUCCESS) {
/* Now that REG_RPI completed successfully,
* we can now proceed with sending the PLOGI ACC.
*/
rc = lpfc_els_rsp_acc(login_mbox->vport, ELS_CMD_PLOGI,
save_iocb, ndlp, NULL);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"4576 PLOGI ACC fails pt2pt discovery: "
"DID %x Data: %x\n", ndlp->nlp_DID, rc);
}
}
/* Now process the REG_RPI cmpl */
lpfc_mbx_cmpl_reg_login(phba, login_mbox);
ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
kfree(save_iocb);
}
static int
lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_iocbq *cmdiocb)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
uint64_t nlp_portwwn = 0;
uint32_t *lp;
union lpfc_wqe128 *wqe;
IOCB_t *icmd;
struct serv_parm *sp;
uint32_t ed_tov;
LPFC_MBOXQ_t *link_mbox;
LPFC_MBOXQ_t *login_mbox;
struct lpfc_iocbq *save_iocb;
struct ls_rjt stat;
uint32_t vid, flag;
int rc;
u32 remote_did;
memset(&stat, 0, sizeof (struct ls_rjt));
pcmd = cmdiocb->cmd_dmabuf;
lp = (uint32_t *) pcmd->virt;
sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
if (wwn_to_u64(sp->portName.u.wwn) == 0) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0140 PLOGI Reject: invalid pname\n");
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
return 0;
}
if (wwn_to_u64(sp->nodeName.u.wwn) == 0) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0141 PLOGI Reject: invalid nname\n");
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
return 0;
}
nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn);
if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) {
/* Reject this request because invalid parameters */
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
return 0;
}
if (phba->sli_rev == LPFC_SLI_REV4)
wqe = &cmdiocb->wqe;
else
icmd = &cmdiocb->iocb;
/* PLOGI chkparm OK */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0114 PLOGI chkparm OK Data: x%x x%x x%x "
"x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag,
ndlp->nlp_rpi, vport->port_state,
vport->fc_flag);
if (vport->cfg_fcp_class == 2 && sp->cls2.classValid)
ndlp->nlp_fcp_info |= CLASS2;
else
ndlp->nlp_fcp_info |= CLASS3;
ndlp->nlp_class_sup = 0;
if (sp->cls1.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS1;
if (sp->cls2.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS2;
if (sp->cls3.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS3;
if (sp->cls4.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS4;
ndlp->nlp_maxframe =
((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
/* if already logged in, do implicit logout */
switch (ndlp->nlp_state) {
case NLP_STE_NPR_NODE:
if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
break;
fallthrough;
case NLP_STE_REG_LOGIN_ISSUE:
case NLP_STE_PRLI_ISSUE:
case NLP_STE_UNMAPPED_NODE:
case NLP_STE_MAPPED_NODE:
/* For initiators, lpfc_plogi_confirm_nport skips fabric did.
* For target mode, execute implicit logo.
* Fabric nodes go into NPR.
*/
if (!(ndlp->nlp_type & NLP_FABRIC) &&
!(phba->nvmet_support)) {
/* Clear ndlp info, since follow up PRLI may have
* updated ndlp information
*/
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER;
ndlp->nlp_flag &= ~NLP_FIRSTBURST;
lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
ndlp, NULL);
return 1;
}
if (nlp_portwwn != 0 &&
nlp_portwwn != wwn_to_u64(sp->portName.u.wwn))
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0143 PLOGI recv'd from DID: x%x "
"WWPN changed: old %llx new %llx\n",
ndlp->nlp_DID,
(unsigned long long)nlp_portwwn,
(unsigned long long)
wwn_to_u64(sp->portName.u.wwn));
/* Notify transport of connectivity loss to trigger cleanup. */
if (phba->nvmet_support &&
ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
lpfc_nvmet_invalidate_host(phba, ndlp);
ndlp->nlp_prev_state = ndlp->nlp_state;
/* rport needs to be unregistered first */
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
break;
}
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER;
ndlp->nlp_flag &= ~NLP_FIRSTBURST;
login_mbox = NULL;
link_mbox = NULL;
save_iocb = NULL;
/* Check for Nport to NPort pt2pt protocol */
if ((vport->fc_flag & FC_PT2PT) &&
!(vport->fc_flag & FC_PT2PT_PLOGI)) {
/* rcv'ed PLOGI decides what our NPortId will be */
if (phba->sli_rev == LPFC_SLI_REV4) {
vport->fc_myDID = bf_get(els_rsp64_sid,
&cmdiocb->wqe.xmit_els_rsp);
} else {
vport->fc_myDID = icmd->un.rcvels.parmRo;
}
/* If there is an outstanding FLOGI, abort it now.
* The remote NPort is not going to ACC our FLOGI
* if its already issuing a PLOGI for pt2pt mode.
* This indicates our FLOGI was dropped; however, we
* must have ACCed the remote NPorts FLOGI to us
* to make it here.
*/
if (phba->hba_flag & HBA_FLOGI_OUTSTANDING)
lpfc_els_abort_flogi(phba);
ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
if (sp->cmn.edtovResolution) {
/* E_D_TOV ticks are in nanoseconds */
ed_tov = (phba->fc_edtov + 999999) / 1000000;
}
/*
* For pt-to-pt, use the larger EDTOV
* RATOV = 2 * EDTOV
*/
if (ed_tov > phba->fc_edtov)
phba->fc_edtov = ed_tov;
phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
/* Issue CONFIG_LINK for SLI3 or REG_VFI for SLI4,
* to account for updated TOV's / parameters
*/
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_issue_reg_vfi(vport);
else {
link_mbox = mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!link_mbox)
goto out;
lpfc_config_link(phba, link_mbox);
link_mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
link_mbox->vport = vport;
/* The default completion handling for CONFIG_LINK
* does not require the ndlp so no reference is needed.
*/
link_mbox->ctx_ndlp = ndlp;
rc = lpfc_sli_issue_mbox(phba, link_mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(link_mbox, phba->mbox_mem_pool);
goto out;
}
}
lpfc_can_disctmo(vport);
}
ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP;
if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) &&
sp->cmn.valid_vendor_ver_level) {
vid = be32_to_cpu(sp->un.vv.vid);
flag = be32_to_cpu(sp->un.vv.flags);
if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP))
ndlp->nlp_flag |= NLP_SUPPRESS_RSP;
}
login_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!login_mbox)
goto out;
save_iocb = kzalloc(sizeof(*save_iocb), GFP_KERNEL);
if (!save_iocb)
goto out;
/* Save info from cmd IOCB to be used in rsp after all mbox completes */
memcpy((uint8_t *)save_iocb, (uint8_t *)cmdiocb,
sizeof(struct lpfc_iocbq));
/* Registering an existing RPI behaves differently for SLI3 vs SLI4 */
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_unreg_rpi(vport, ndlp);
/* Issue REG_LOGIN first, before ACCing the PLOGI, thus we will
* always be deferring the ACC.
*/
if (phba->sli_rev == LPFC_SLI_REV4)
remote_did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest);
else
remote_did = icmd->un.rcvels.remoteID;
rc = lpfc_reg_rpi(phba, vport->vpi, remote_did,
(uint8_t *)sp, login_mbox, ndlp->nlp_rpi);
if (rc)
goto out;
login_mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
login_mbox->vport = vport;
/*
* If there is an outstanding PLOGI issued, abort it before
* sending ACC rsp for received PLOGI. If pending plogi
* is not canceled here, the plogi will be rejected by
* remote port and will be retried. On a configuration with
* single discovery thread, this will cause a huge delay in
* discovery. Also this will cause multiple state machines
* running in parallel for this node.
* This only applies to a fabric environment.
*/
if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) &&
(vport->fc_flag & FC_FABRIC)) {
/* software abort outstanding PLOGI */
lpfc_els_abort(phba, ndlp);
}
if ((vport->port_type == LPFC_NPIV_PORT &&
vport->cfg_restrict_login)) {
/* no deferred ACC */
kfree(save_iocb);
/* This is an NPIV SLI4 instance that does not need to register
* a default RPI.
*/
if (phba->sli_rev == LPFC_SLI_REV4) {
lpfc_mbox_rsrc_cleanup(phba, login_mbox,
MBOX_THD_UNLOCKED);
login_mbox = NULL;
} else {
/* In order to preserve RPIs, we want to cleanup
* the default RPI the firmware created to rcv
* this ELS request. The only way to do this is
* to register, then unregister the RPI.
*/
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN |
NLP_RCV_PLOGI);
spin_unlock_irq(&ndlp->lock);
}
stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
ndlp, login_mbox);
if (rc && login_mbox)
lpfc_mbox_rsrc_cleanup(phba, login_mbox,
MBOX_THD_UNLOCKED);
return 1;
}
/* So the order here should be:
* SLI3 pt2pt
* Issue CONFIG_LINK mbox
* CONFIG_LINK cmpl
* SLI4 pt2pt
* Issue REG_VFI mbox
* REG_VFI cmpl
* SLI4
* Issue UNREG RPI mbx
* UNREG RPI cmpl
* Issue REG_RPI mbox
* REG RPI cmpl
* Issue PLOGI ACC
* PLOGI ACC cmpl
*/
login_mbox->mbox_cmpl = lpfc_defer_plogi_acc;
login_mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
if (!login_mbox->ctx_ndlp)
goto out;
login_mbox->context3 = save_iocb; /* For PLOGI ACC */
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
spin_unlock_irq(&ndlp->lock);
/* Start the ball rolling by issuing REG_LOGIN here */
rc = lpfc_sli_issue_mbox(phba, login_mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_nlp_put(ndlp);
goto out;
}
lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
return 1;
out:
kfree(save_iocb);
if (login_mbox)
mempool_free(login_mbox, phba->mbox_mem_pool);
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 0;
}
/**
* lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object
*
* This routine is invoked to issue a completion to a rcv'ed
* ADISC or PDISC after the paused RPI has been resumed.
**/
static void
lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport;
struct lpfc_iocbq *elsiocb;
struct lpfc_nodelist *ndlp;
uint32_t cmd;
elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf;
ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp;
vport = mboxq->vport;
cmd = elsiocb->drvrTimeout;
if (cmd == ELS_CMD_ADISC) {
lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp);
} else {
lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb,
ndlp, NULL);
}
/* This nlp_put pairs with lpfc_sli4_resume_rpi */
lpfc_nlp_put(ndlp);
kfree(elsiocb);
mempool_free(mboxq, phba->mbox_mem_pool);
}
static int
lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_iocbq *cmdiocb)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
struct lpfc_dmabuf *pcmd;
struct serv_parm *sp;
struct lpfc_name *pnn, *ppn;
struct ls_rjt stat;
ADISC *ap;
uint32_t *lp;
uint32_t cmd;
pcmd = cmdiocb->cmd_dmabuf;
lp = (uint32_t *) pcmd->virt;
cmd = *lp++;
if (cmd == ELS_CMD_ADISC) {
ap = (ADISC *) lp;
pnn = (struct lpfc_name *) & ap->nodeName;
ppn = (struct lpfc_name *) & ap->portName;
} else {
sp = (struct serv_parm *) lp;
pnn = (struct lpfc_name *) & sp->nodeName;
ppn = (struct lpfc_name *) & sp->portName;
}
if (get_job_ulpstatus(phba, cmdiocb) == 0 &&
lpfc_check_adisc(vport, ndlp, pnn, ppn)) {
/*
* As soon as we send ACC, the remote NPort can
* start sending us data. Thus, for SLI4 we must
* resume the RPI before the ACC goes out.
*/
if (vport->phba->sli_rev == LPFC_SLI_REV4) {
elsiocb = kmalloc(sizeof(struct lpfc_iocbq),
GFP_KERNEL);
if (elsiocb) {
/* Save info from cmd IOCB used in rsp */
memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb,
sizeof(struct lpfc_iocbq));
/* Save the ELS cmd */
elsiocb->drvrTimeout = cmd;
lpfc_sli4_resume_rpi(ndlp,
lpfc_mbx_cmpl_resume_rpi, elsiocb);
goto out;
}
}
if (cmd == ELS_CMD_ADISC) {
lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp);
} else {
lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb,
ndlp, NULL);
}
out:
/* If we are authenticated, move to the proper state.
* It is possible an ADISC arrived and the remote nport
* is already in MAPPED or UNMAPPED state. Catch this
* condition and don't set the nlp_state again because
* it causes an unnecessary transport unregister/register.
*
* Nodes marked for ADISC will move MAPPED or UNMAPPED state
* after issuing ADISC
*/
if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) {
if ((ndlp->nlp_state != NLP_STE_MAPPED_NODE) &&
!(ndlp->nlp_flag & NLP_NPR_ADISC))
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_MAPPED_NODE);
}
return 1;
}
/* Reject this request because invalid parameters */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
/* 1 sec timeout */
mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
return 0;
}
static int
lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_iocbq *cmdiocb, uint32_t els_cmd)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_vport **vports;
int i, active_vlink_present = 0 ;
/* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */
/* Only call LOGO ACC for first LOGO, this avoids sending unnecessary
* PLOGIs during LOGO storms from a device.
*/
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_LOGO_ACC;
spin_unlock_irq(&ndlp->lock);
if (els_cmd == ELS_CMD_PRLO)
lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
else
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
/* This clause allows the initiator to ACC the LOGO back to the
* Fabric Domain Controller. It does deliberately skip all other
* steps because some fabrics send RDP requests after logging out
* from the initiator.
*/
if (ndlp->nlp_type & NLP_FABRIC &&
((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK))
return 0;
/* Notify transport of connectivity loss to trigger cleanup. */
if (phba->nvmet_support &&
ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
lpfc_nvmet_invalidate_host(phba, ndlp);
if (ndlp->nlp_DID == Fabric_DID) {
if (vport->port_state <= LPFC_FDISC ||
vport->fc_flag & FC_PT2PT)
goto out;
lpfc_linkdown_port(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_LOGO_RCVD;
spin_unlock_irq(shost->host_lock);
vports = lpfc_create_vport_work_array(phba);
if (vports) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL;
i++) {
if ((!(vports[i]->fc_flag &
FC_VPORT_LOGO_RCVD)) &&
(vports[i]->port_state > LPFC_FDISC)) {
active_vlink_present = 1;
break;
}
}
lpfc_destroy_vport_work_array(phba, vports);
}
/*
* Don't re-instantiate if vport is marked for deletion.
* If we are here first then vport_delete is going to wait
* for discovery to complete.
*/
if (!(vport->load_flag & FC_UNLOADING) &&
active_vlink_present) {
/*
* If there are other active VLinks present,
* re-instantiate the Vlink using FDISC.
*/
mod_timer(&ndlp->nlp_delayfunc,
jiffies + msecs_to_jiffies(1000));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
vport->port_state = LPFC_FDISC;
} else {
spin_lock_irq(shost->host_lock);
phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG;
spin_unlock_irq(shost->host_lock);
lpfc_retry_pport_discovery(phba);
}
} else {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_NODE | LOG_ELS | LOG_DISCOVERY,
"3203 LOGO recover nport x%06x state x%x "
"ntype x%x fc_flag x%x\n",
ndlp->nlp_DID, ndlp->nlp_state,
ndlp->nlp_type, vport->fc_flag);
/* Special cases for rports that recover post LOGO. */
if ((!(ndlp->nlp_type == NLP_FABRIC) &&
(ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) ||
vport->fc_flag & FC_PT2PT)) ||
(ndlp->nlp_state >= NLP_STE_ADISC_ISSUE ||
ndlp->nlp_state <= NLP_STE_PRLI_ISSUE)) {
mod_timer(&ndlp->nlp_delayfunc,
jiffies + msecs_to_jiffies(1000 * 1));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
lpfc_printf_vlog(vport, KERN_INFO,
LOG_NODE | LOG_ELS | LOG_DISCOVERY,
"3204 Start nlpdelay on DID x%06x "
"nflag x%x lastels x%x ref cnt %u",
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_last_elscmd,
kref_read(&ndlp->kref));
}
}
out:
/* Unregister from backend, could have been skipped due to ADISC */
lpfc_nlp_unreg_node(vport, ndlp);
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
/* The driver has to wait until the ACC completes before it continues
* processing the LOGO. The action will resume in
* lpfc_cmpl_els_logo_acc routine. Since part of processing includes an
* unreg_login, the driver waits so the ACC does not get aborted.
*/
return 0;
}
static uint32_t
lpfc_rcv_prli_support_check(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
struct lpfc_iocbq *cmdiocb)
{
struct ls_rjt stat;
uint32_t *payload;
uint32_t cmd;
payload = cmdiocb->cmd_dmabuf->virt;
cmd = *payload;
if (vport->phba->nvmet_support) {
/* Must be a NVME PRLI */
if (cmd == ELS_CMD_PRLI)
goto out;
} else {
/* Initiator mode. */
if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI))
goto out;
}
return 1;
out:
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC,
"6115 Rcv PRLI (%x) check failed: ndlp rpi %d "
"state x%x flags x%x\n",
cmd, ndlp->nlp_rpi, ndlp->nlp_state,
ndlp->nlp_flag);
memset(&stat, 0, sizeof(struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED;
stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
ndlp, NULL);
return 0;
}
static void
lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_iocbq *cmdiocb)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
PRLI *npr;
struct fc_rport *rport = ndlp->rport;
u32 roles;
pcmd = cmdiocb->cmd_dmabuf;
lp = (uint32_t *)pcmd->virt;
npr = (PRLI *)((uint8_t *)lp + sizeof(uint32_t));
if ((npr->prliType == PRLI_FCP_TYPE) ||
(npr->prliType == PRLI_NVME_TYPE)) {
if (npr->initiatorFunc) {
if (npr->prliType == PRLI_FCP_TYPE)
ndlp->nlp_type |= NLP_FCP_INITIATOR;
if (npr->prliType == PRLI_NVME_TYPE)
ndlp->nlp_type |= NLP_NVME_INITIATOR;
}
if (npr->targetFunc) {
if (npr->prliType == PRLI_FCP_TYPE)
ndlp->nlp_type |= NLP_FCP_TARGET;
if (npr->prliType == PRLI_NVME_TYPE)
ndlp->nlp_type |= NLP_NVME_TARGET;
if (npr->writeXferRdyDis)
ndlp->nlp_flag |= NLP_FIRSTBURST;
}
if (npr->Retry && ndlp->nlp_type &
(NLP_FCP_INITIATOR | NLP_FCP_TARGET))
ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
if (npr->Retry && phba->nsler &&
ndlp->nlp_type & (NLP_NVME_INITIATOR | NLP_NVME_TARGET))
ndlp->nlp_nvme_info |= NLP_NVME_NSLER;
/* If this driver is in nvme target mode, set the ndlp's fc4
* type to NVME provided the PRLI response claims NVME FC4
* type. Target mode does not issue gft_id so doesn't get
* the fc4 type set until now.
*/
if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) {
ndlp->nlp_fc4_type |= NLP_FC4_NVME;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
}
/* Fabric Controllers send FCP PRLI as an initiator but should
* not get recognized as FCP type and registered with transport.
*/
if (npr->prliType == PRLI_FCP_TYPE &&
!(ndlp->nlp_type & NLP_FABRIC))
ndlp->nlp_fc4_type |= NLP_FC4_FCP;
}
if (rport) {
/* We need to update the rport role values */
roles = FC_RPORT_ROLE_UNKNOWN;
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
roles |= FC_RPORT_ROLE_FCP_INITIATOR;
if (ndlp->nlp_type & NLP_FCP_TARGET)
roles |= FC_RPORT_ROLE_FCP_TARGET;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport rolechg: role:x%x did:x%x flg:x%x",
roles, ndlp->nlp_DID, ndlp->nlp_flag);
if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
fc_remote_port_rolechg(rport, roles);
}
}
static uint32_t
lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
return 0;
}
if (!(vport->fc_flag & FC_PT2PT)) {
/* Check config parameter use-adisc or FCP-2 */
if (vport->cfg_use_adisc && ((vport->fc_flag & FC_RSCN_MODE) ||
((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) &&
(ndlp->nlp_type & NLP_FCP_TARGET)))) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
return 1;
}
}
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
lpfc_unreg_rpi(vport, ndlp);
return 0;
}
/**
* lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd.
* @phba : Pointer to lpfc_hba structure.
* @vport: Pointer to lpfc_vport structure.
* @ndlp: Pointer to lpfc_nodelist structure.
* @rpi : rpi to be release.
*
* This function will send a unreg_login mailbox command to the firmware
* to release a rpi.
**/
static void
lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp, uint16_t rpi)
{
LPFC_MBOXQ_t *pmb;
int rc;
/* If there is already an UNREG in progress for this ndlp,
* no need to queue up another one.
*/
if (ndlp->nlp_flag & NLP_UNREG_INP) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"1435 release_rpi SKIP UNREG x%x on "
"NPort x%x deferred x%x flg x%x "
"Data: x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_defer_did,
ndlp->nlp_flag, ndlp);
return;
}
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!pmb)
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2796 mailbox memory allocation failed \n");
else {
lpfc_unreg_login(phba, vport->vpi, rpi, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
pmb->vport = vport;
pmb->ctx_ndlp = lpfc_nlp_get(ndlp);
if (!pmb->ctx_ndlp) {
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
(!(vport->fc_flag & FC_OFFLINE_MODE)))
ndlp->nlp_flag |= NLP_UNREG_INP;
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"1437 release_rpi UNREG x%x "
"on NPort x%x flg x%x\n",
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_nlp_put(ndlp);
mempool_free(pmb, phba->mbox_mem_pool);
}
}
}
static uint32_t
lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba;
LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
uint16_t rpi;
phba = vport->phba;
/* Release the RPI if reglogin completing */
if (!(phba->pport->load_flag & FC_UNLOADING) &&
(evt == NLP_EVT_CMPL_REG_LOGIN) &&
(!pmb->u.mb.mbxStatus)) {
rpi = pmb->u.mb.un.varWords[0];
lpfc_release_rpi(phba, vport, ndlp, rpi);
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0271 Illegal State Transition: node x%x "
"event x%x, state x%x Data: x%x x%x\n",
ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi,
ndlp->nlp_flag);
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
/* This transition is only legal if we previously
* rcv'ed a PLOGI. Since we don't want 2 discovery threads
* working on the same NPortID, do nothing for this thread
* to stop it.
*/
if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0272 Illegal State Transition: node x%x "
"event x%x, state x%x Data: x%x x%x\n",
ndlp->nlp_DID, evt, ndlp->nlp_state,
ndlp->nlp_rpi, ndlp->nlp_flag);
}
return ndlp->nlp_state;
}
/* Start of Discovery State Machine routines */
static uint32_t
lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb;
cmdiocb = (struct lpfc_iocbq *) arg;
if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
return ndlp->nlp_state;
}
return NLP_STE_FREED_NODE;
}
static uint32_t
lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
lpfc_issue_els_logo(vport, ndlp, 0);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_LOGO_ACC;
spin_unlock_irq(&ndlp->lock);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
return NLP_STE_FREED_NODE;
}
static uint32_t
lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
return NLP_STE_FREED_NODE;
}
static uint32_t
lpfc_device_recov_unused_node(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb = arg;
struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf;
uint32_t *lp = (uint32_t *) pcmd->virt;
struct serv_parm *sp = (struct serv_parm *) (lp + 1);
struct ls_rjt stat;
int port_cmp;
memset(&stat, 0, sizeof (struct ls_rjt));
/* For a PLOGI, we only accept if our portname is less
* than the remote portname.
*/
phba->fc_stat.elsLogiCol++;
port_cmp = memcmp(&vport->fc_portname, &sp->portName,
sizeof(struct lpfc_name));
if (port_cmp >= 0) {
/* Reject this request because the remote node will accept
ours */
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
} else {
if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) &&
(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
(vport->num_disc_nodes)) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
/* Check if there are more PLOGIs to be sent */
lpfc_more_plogi(vport);
if (vport->num_disc_nodes == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
lpfc_end_rscn(vport);
}
}
} /* If our portname was less */
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
struct ls_rjt stat;
memset(&stat, 0, sizeof (struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
/* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */
if (vport->phba->sli_rev == LPFC_SLI_REV3)
ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag;
/* software abort outstanding PLOGI */
lpfc_els_abort(vport->phba, ndlp);
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
/* software abort outstanding PLOGI */
lpfc_els_abort(phba, ndlp);
if (evt == NLP_EVT_RCV_LOGO) {
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
} else {
lpfc_issue_els_logo(vport, ndlp, 0);
}
/* Put ndlp in npr state set plogi timer for 1 sec */
mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb, *rspiocb;
struct lpfc_dmabuf *pcmd, *prsp;
uint32_t *lp;
uint32_t vid, flag;
struct serv_parm *sp;
uint32_t ed_tov;
LPFC_MBOXQ_t *mbox;
int rc;
u32 ulp_status;
u32 did;
cmdiocb = (struct lpfc_iocbq *) arg;
rspiocb = cmdiocb->rsp_iocb;
ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
/* Recovery from PLOGI collision logic */
return ndlp->nlp_state;
}
if (ulp_status)
goto out;
pcmd = cmdiocb->cmd_dmabuf;
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
if (!prsp)
goto out;
lp = (uint32_t *) prsp->virt;
sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
/* Some switches have FDMI servers returning 0 for WWN */
if ((ndlp->nlp_DID != FDMI_DID) &&
(wwn_to_u64(sp->portName.u.wwn) == 0 ||
wwn_to_u64(sp->nodeName.u.wwn) == 0)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0142 PLOGI RSP: Invalid WWN.\n");
goto out;
}
if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0))
goto out;
/* PLOGI chkparm OK */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_state,
ndlp->nlp_flag, ndlp->nlp_rpi);
if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid))
ndlp->nlp_fcp_info |= CLASS2;
else
ndlp->nlp_fcp_info |= CLASS3;
ndlp->nlp_class_sup = 0;
if (sp->cls1.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS1;
if (sp->cls2.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS2;
if (sp->cls3.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS3;
if (sp->cls4.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS4;
ndlp->nlp_maxframe =
((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
if ((vport->fc_flag & FC_PT2PT) &&
(vport->fc_flag & FC_PT2PT_PLOGI)) {
ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
if (sp->cmn.edtovResolution) {
/* E_D_TOV ticks are in nanoseconds */
ed_tov = (phba->fc_edtov + 999999) / 1000000;
}
ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP;
if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) &&
sp->cmn.valid_vendor_ver_level) {
vid = be32_to_cpu(sp->un.vv.vid);
flag = be32_to_cpu(sp->un.vv.flags);
if ((vid == LPFC_VV_EMLX_ID) &&
(flag & LPFC_VV_SUPPRESS_RSP))
ndlp->nlp_flag |= NLP_SUPPRESS_RSP;
}
/*
* Use the larger EDTOV
* RATOV = 2 * EDTOV for pt-to-pt
*/
if (ed_tov > phba->fc_edtov)
phba->fc_edtov = ed_tov;
phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
/* Issue config_link / reg_vfi to account for updated TOV's */
if (phba->sli_rev == LPFC_SLI_REV4) {
lpfc_issue_reg_vfi(vport);
} else {
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0133 PLOGI: no memory "
"for config_link "
"Data: x%x x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_state,
ndlp->nlp_flag, ndlp->nlp_rpi);
goto out;
}
lpfc_config_link(phba, mbox);
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
goto out;
}
}
}
lpfc_unreg_rpi(vport, ndlp);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0018 PLOGI: no memory for reg_login "
"Data: x%x x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_state,
ndlp->nlp_flag, ndlp->nlp_rpi);
goto out;
}
did = get_job_els_rsp64_did(phba, cmdiocb);
if (lpfc_reg_rpi(phba, vport->vpi, did,
(uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
switch (ndlp->nlp_DID) {
case NameServer_DID:
mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login;
/* Fabric Controller Node needs these parameters. */
memcpy(&ndlp->fc_sparam, sp, sizeof(struct serv_parm));
break;
case FDMI_DID:
mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login;
break;
default:
ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
}
mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
if (!mbox->ctx_ndlp)
goto out;
mbox->vport = vport;
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
!= MBX_NOT_FINISHED) {
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_REG_LOGIN_ISSUE);
return ndlp->nlp_state;
}
if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
/* decrement node reference count to the failed mbox
* command
*/
lpfc_nlp_put(ndlp);
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0134 PLOGI: cannot issue reg_login "
"Data: x%x x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_state,
ndlp->nlp_flag, ndlp->nlp_rpi);
} else {
mempool_free(mbox, phba->mbox_mem_pool);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0135 PLOGI: cannot format reg_login "
"Data: x%x x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_state,
ndlp->nlp_flag, ndlp->nlp_rpi);
}
out:
if (ndlp->nlp_DID == NameServer_DID) {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0261 Cannot Register NameServer login\n");
}
/*
** In case the node reference counter does not go to zero, ensure that
** the stale state for the node is not processed.
*/
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
return NLP_STE_FREED_NODE;
}
static uint32_t
lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp, void *arg, uint32_t evt)
{
struct lpfc_hba *phba;
LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
MAILBOX_t *mb = &pmb->u.mb;
uint16_t rpi;
phba = vport->phba;
/* Release the RPI */
if (!(phba->pport->load_flag & FC_UNLOADING) &&
!mb->mbxStatus) {
rpi = pmb->u.mb.un.varWords[0];
lpfc_release_rpi(phba, vport, ndlp, rpi);
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
spin_unlock_irq(&ndlp->lock);
return ndlp->nlp_state;
} else {
/* software abort outstanding PLOGI */
lpfc_els_abort(vport->phba, ndlp);
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
}
static uint32_t
lpfc_device_recov_plogi_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
/* Don't do anything that will mess up processing of the
* previous RSCN.
*/
if (vport->fc_flag & FC_RSCN_DEFERRED)
return ndlp->nlp_state;
/* software abort outstanding PLOGI */
lpfc_els_abort(phba, ndlp);
ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
spin_unlock_irq(&ndlp->lock);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb;
/* software abort outstanding ADISC */
lpfc_els_abort(phba, ndlp);
cmdiocb = (struct lpfc_iocbq *) arg;
if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
if (vport->num_disc_nodes)
lpfc_more_adisc(vport);
}
return ndlp->nlp_state;
}
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb;
cmdiocb = (struct lpfc_iocbq *) arg;
/* software abort outstanding ADISC */
lpfc_els_abort(phba, ndlp);
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb;
cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_padisc(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb;
cmdiocb = (struct lpfc_iocbq *) arg;
/* Treat like rcv logo */
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb, *rspiocb;
ADISC *ap;
int rc;
u32 ulp_status;
cmdiocb = (struct lpfc_iocbq *) arg;
rspiocb = cmdiocb->rsp_iocb;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
if ((ulp_status) ||
(!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) {
/* 1 sec timeout */
mod_timer(&ndlp->nlp_delayfunc,
jiffies + msecs_to_jiffies(1000));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
lpfc_unreg_rpi(vport, ndlp);
return ndlp->nlp_state;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL);
if (rc) {
/* Stay in state and retry. */
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
return ndlp->nlp_state;
}
}
if (ndlp->nlp_type & NLP_FCP_TARGET)
ndlp->nlp_fc4_type |= NLP_FC4_FCP;
if (ndlp->nlp_type & NLP_NVME_TARGET)
ndlp->nlp_fc4_type |= NLP_FC4_NVME;
if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) {
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
} else {
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
spin_unlock_irq(&ndlp->lock);
return ndlp->nlp_state;
} else {
/* software abort outstanding ADISC */
lpfc_els_abort(vport->phba, ndlp);
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
}
static uint32_t
lpfc_device_recov_adisc_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
/* Don't do anything that will mess up processing of the
* previous RSCN.
*/
if (vport->fc_flag & FC_RSCN_DEFERRED)
return ndlp->nlp_state;
/* software abort outstanding ADISC */
lpfc_els_abort(phba, ndlp);
ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
spin_unlock_irq(&ndlp->lock);
lpfc_disc_set_adisc(vport, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_plogi(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
struct ls_rjt stat;
if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) {
return ndlp->nlp_state;
}
if (vport->phba->nvmet_support) {
/* NVME Target mode. Handle and respond to the PRLI and
* transition to UNMAPPED provided the RPI has completed
* registration.
*/
if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
lpfc_rcv_prli(vport, ndlp, cmdiocb);
lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
} else {
/* RPI registration has not completed. Reject the PRLI
* to prevent an illegal state transition when the
* rpi registration does complete.
*/
memset(&stat, 0, sizeof(struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
ndlp, NULL);
return ndlp->nlp_state;
}
} else {
/* Initiator mode. */
lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
LPFC_MBOXQ_t *mb;
LPFC_MBOXQ_t *nextmb;
cmdiocb = (struct lpfc_iocbq *) arg;
/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
if ((mb = phba->sli.mbox_active)) {
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
(ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
lpfc_nlp_put(ndlp);
mb->ctx_ndlp = NULL;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
}
}
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
(ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
lpfc_nlp_put(ndlp);
list_del(&mb->list);
phba->sli.mboxq_cnt--;
lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED);
}
}
spin_unlock_irq(&phba->hbalock);
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_padisc(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_iocbq *cmdiocb;
cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
MAILBOX_t *mb = &pmb->u.mb;
uint32_t did = mb->un.varWords[1];
if (mb->mbxStatus) {
/* RegLogin failed */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0246 RegLogin failed Data: x%x x%x x%x x%x "
"x%x\n",
did, mb->mbxStatus, vport->port_state,
mb->un.varRegLogin.vpi,
mb->un.varRegLogin.rpi);
/*
* If RegLogin failed due to lack of HBA resources do not
* retry discovery.
*/
if (mb->mbxStatus == MBXERR_RPI_FULL) {
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
return ndlp->nlp_state;
}
/* Put ndlp in npr state set plogi timer for 1 sec */
mod_timer(&ndlp->nlp_delayfunc,
jiffies + msecs_to_jiffies(1000 * 1));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
lpfc_issue_els_logo(vport, ndlp, 0);
return ndlp->nlp_state;
}
/* SLI4 ports have preallocated logical rpis. */
if (phba->sli_rev < LPFC_SLI_REV4)
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
/* Only if we are not a fabric nport do we issue PRLI */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"3066 RegLogin Complete on x%x x%x x%x\n",
did, ndlp->nlp_type, ndlp->nlp_fc4_type);
if (!(ndlp->nlp_type & NLP_FABRIC) &&
(phba->nvmet_support == 0)) {
/* The driver supports FCP and NVME concurrently. If the
* ndlp's nlp_fc4_type is still zero, the driver doesn't
* know what PRLI to send yet. Figure that out now and
* call PRLI depending on the outcome.
*/
if (vport->fc_flag & FC_PT2PT) {
/* If we are pt2pt, there is no Fabric to determine
* the FC4 type of the remote nport. So if NVME
* is configured try it.
*/
ndlp->nlp_fc4_type |= NLP_FC4_FCP;
if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) &&
(vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
ndlp->nlp_fc4_type |= NLP_FC4_NVME;
/* We need to update the localport also */
lpfc_nvme_update_localport(vport);
}
} else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
ndlp->nlp_fc4_type |= NLP_FC4_FCP;
} else if (ndlp->nlp_fc4_type == 0) {
/* If we are only configured for FCP, the driver
* should just issue PRLI for FCP. Otherwise issue
* GFT_ID to determine if remote port supports NVME.
*/
if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) {
lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0,
ndlp->nlp_DID);
return ndlp->nlp_state;
}
ndlp->nlp_fc4_type = NLP_FC4_FCP;
}
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
if (lpfc_issue_els_prli(vport, ndlp, 0)) {
lpfc_issue_els_logo(vport, ndlp, 0);
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
}
} else {
if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support)
phba->targetport->port_id = vport->fc_myDID;
/* Only Fabric ports should transition. NVME target
* must complete PRLI.
*/
if (ndlp->nlp_type & NLP_FABRIC) {
ndlp->nlp_fc4_type &= ~NLP_FC4_FCP;
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
}
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
spin_unlock_irq(&ndlp->lock);
return ndlp->nlp_state;
} else {
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
}
static uint32_t
lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
/* Don't do anything that will mess up processing of the
* previous RSCN.
*/
if (vport->fc_flag & FC_RSCN_DEFERRED)
return ndlp->nlp_state;
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
/* If we are a target we won't immediately transition into PRLI,
* so if REG_LOGIN already completed we don't need to ignore it.
*/
if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) ||
!vport->phba->nvmet_support)
ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
spin_unlock_irq(&ndlp->lock);
lpfc_disc_set_adisc(vport, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb;
cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_plogi(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
return ndlp->nlp_state;
lpfc_rcv_prli(vport, ndlp, cmdiocb);
lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
/* Software abort outstanding PRLI before sending acc */
lpfc_els_abort(vport->phba, ndlp);
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_padisc(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
/* This routine is envoked when we rcv a PRLO request from a nport
* we are logged into. We should send back a PRLO rsp setting the
* appropriate bits.
* NEXT STATE = PRLI_ISSUE
*/
static uint32_t
lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb, *rspiocb;
struct lpfc_hba *phba = vport->phba;
PRLI *npr;
struct lpfc_nvme_prli *nvpr;
void *temp_ptr;
u32 ulp_status;
bool acc_imode_sps = false;
cmdiocb = (struct lpfc_iocbq *) arg;
rspiocb = cmdiocb->rsp_iocb;
ulp_status = get_job_ulpstatus(phba, rspiocb);
/* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp
* format is different so NULL the two PRLI types so that the
* driver correctly gets the correct context.
*/
npr = NULL;
nvpr = NULL;
temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
if (cmdiocb->cmd_flag & LPFC_PRLI_FCP_REQ)
npr = (PRLI *) temp_ptr;
else if (cmdiocb->cmd_flag & LPFC_PRLI_NVME_REQ)
nvpr = (struct lpfc_nvme_prli *) temp_ptr;
if (ulp_status) {
if ((vport->port_type == LPFC_NPIV_PORT) &&
vport->cfg_restrict_login) {
goto out;
}
/* Adjust the nlp_type accordingly if the PRLI failed */
if (npr)
ndlp->nlp_fc4_type &= ~NLP_FC4_FCP;
if (nvpr)
ndlp->nlp_fc4_type &= ~NLP_FC4_NVME;
/* We can't set the DSM state till BOTH PRLIs complete */
goto out_err;
}
if (npr && npr->prliType == PRLI_FCP_TYPE) {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_ELS | LOG_NODE | LOG_DISCOVERY,
"6028 FCP NPR PRLI Cmpl Init %d Target %d "
"EIP %d AccCode x%x\n",
npr->initiatorFunc, npr->targetFunc,
npr->estabImagePair, npr->acceptRspCode);
if (npr->acceptRspCode == PRLI_INV_SRV_PARM) {
/* Strict initiators don't establish an image pair. */
if (npr->initiatorFunc && !npr->targetFunc &&
!npr->estabImagePair)
acc_imode_sps = true;
}
if (npr->acceptRspCode == PRLI_REQ_EXECUTED || acc_imode_sps) {
if (npr->initiatorFunc)
ndlp->nlp_type |= NLP_FCP_INITIATOR;
if (npr->targetFunc) {
ndlp->nlp_type |= NLP_FCP_TARGET;
if (npr->writeXferRdyDis)
ndlp->nlp_flag |= NLP_FIRSTBURST;
}
if (npr->Retry)
ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
}
} else if (nvpr &&
(bf_get_be32(prli_acc_rsp_code, nvpr) ==
PRLI_REQ_EXECUTED) &&
(bf_get_be32(prli_type_code, nvpr) ==
PRLI_NVME_TYPE)) {
/* Complete setting up the remote ndlp personality. */
if (bf_get_be32(prli_init, nvpr))
ndlp->nlp_type |= NLP_NVME_INITIATOR;
if (phba->nsler && bf_get_be32(prli_nsler, nvpr) &&
bf_get_be32(prli_conf, nvpr))
ndlp->nlp_nvme_info |= NLP_NVME_NSLER;
else
ndlp->nlp_nvme_info &= ~NLP_NVME_NSLER;
/* Target driver cannot solicit NVME FB. */
if (bf_get_be32(prli_tgt, nvpr)) {
/* Complete the nvme target roles. The transport
* needs to know if the rport is capable of
* discovery in addition to its role.
*/
ndlp->nlp_type |= NLP_NVME_TARGET;
if (bf_get_be32(prli_disc, nvpr))
ndlp->nlp_type |= NLP_NVME_DISCOVERY;
/*
* If prli_fba is set, the Target supports FirstBurst.
* If prli_fb_sz is 0, the FirstBurst size is unlimited,
* otherwise it defines the actual size supported by
* the NVME Target.
*/
if ((bf_get_be32(prli_fba, nvpr) == 1) &&
(phba->cfg_nvme_enable_fb) &&
(!phba->nvmet_support)) {
/* Both sides support FB. The target's first
* burst size is a 512 byte encoded value.
*/
ndlp->nlp_flag |= NLP_FIRSTBURST;
ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz,
nvpr);
/* Expressed in units of 512 bytes */
if (ndlp->nvme_fb_size)
ndlp->nvme_fb_size <<=
LPFC_NVME_FB_SHIFT;
else
ndlp->nvme_fb_size = LPFC_NVME_MAX_FB;
}
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6029 NVME PRLI Cmpl w1 x%08x "
"w4 x%08x w5 x%08x flag x%x, "
"fcp_info x%x nlp_type x%x\n",
be32_to_cpu(nvpr->word1),
be32_to_cpu(nvpr->word4),
be32_to_cpu(nvpr->word5),
ndlp->nlp_flag, ndlp->nlp_fcp_info,
ndlp->nlp_type);
}
if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
(vport->port_type == LPFC_NPIV_PORT) &&
vport->cfg_restrict_login) {
out:
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_TARGET_REMOVE;
spin_unlock_irq(&ndlp->lock);
lpfc_issue_els_logo(vport, ndlp, 0);
ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
return ndlp->nlp_state;
}
out_err:
/* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs
* are complete.
*/
if (ndlp->fc4_prli_sent == 0) {
ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET))
lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
else if (ndlp->nlp_type &
(NLP_FCP_INITIATOR | NLP_NVME_INITIATOR))
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
} else
lpfc_printf_vlog(vport,
KERN_INFO, LOG_ELS,
"3067 PRLI's still outstanding "
"on x%06x - count %d, Pend Node Mode "
"transition...\n",
ndlp->nlp_DID, ndlp->fc4_prli_sent);
return ndlp->nlp_state;
}
/*! lpfc_device_rm_prli_issue
*
* \pre
* \post
* \param phba
* \param ndlp
* \param arg
* \param evt
* \return uint32_t
*
* \b Description:
* This routine is envoked when we a request to remove a nport we are in the
* process of PRLIing. We should software abort outstanding prli, unreg
* login, send a logout. We will change node state to UNUSED_NODE, put it
* on plogi list so it can be freed when LOGO completes.
*
*/
static uint32_t
lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
spin_unlock_irq(&ndlp->lock);
return ndlp->nlp_state;
} else {
/* software abort outstanding PLOGI */
lpfc_els_abort(vport->phba, ndlp);
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
}
/*! lpfc_device_recov_prli_issue
*
* \pre
* \post
* \param phba
* \param ndlp
* \param arg
* \param evt
* \return uint32_t
*
* \b Description:
* The routine is envoked when the state of a device is unknown, like
* during a link down. We should remove the nodelist entry from the
* unmapped list, issue a UNREG_LOGIN, do a software abort of the
* outstanding PRLI command, then free the node entry.
*/
static uint32_t
lpfc_device_recov_prli_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
/* Don't do anything that will mess up processing of the
* previous RSCN.
*/
if (vport->fc_flag & FC_RSCN_DEFERRED)
return ndlp->nlp_state;
/* software abort outstanding PRLI */
lpfc_els_abort(phba, ndlp);
ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
spin_unlock_irq(&ndlp->lock);
lpfc_disc_set_adisc(vport, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
struct ls_rjt stat;
memset(&stat, 0, sizeof(struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
struct ls_rjt stat;
memset(&stat, 0, sizeof(struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_LOGO_ACC;
spin_unlock_irq(&ndlp->lock);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
struct ls_rjt stat;
memset(&stat, 0, sizeof(struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg;
struct ls_rjt stat;
memset(&stat, 0, sizeof(struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
spin_unlock_irq(&ndlp->lock);
lpfc_disc_set_adisc(vport, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
/*
* DevLoss has timed out and is calling for Device Remove.
* In this case, abort the LOGO and cleanup the ndlp
*/
lpfc_unreg_rpi(vport, ndlp);
/* software abort outstanding PLOGI */
lpfc_els_abort(vport->phba, ndlp);
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
static uint32_t
lpfc_device_recov_logo_issue(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
/*
* Device Recovery events have no meaning for a node with a LOGO
* outstanding. The LOGO has to complete first and handle the
* node from that point.
*/
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_plogi(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
return ndlp->nlp_state;
lpfc_rcv_prli(vport, ndlp, cmdiocb);
lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_padisc(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
return ndlp->nlp_state;
}
static uint32_t
lpfc_device_rm_unmap_node(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
static uint32_t
lpfc_device_recov_unmap_node(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
spin_unlock_irq(&ndlp->lock);
lpfc_disc_set_adisc(vport, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_plogi(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
return ndlp->nlp_state;
lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_padisc(vport, ndlp, cmdiocb);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
/* flush the target */
lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);
/* Treat like rcv logo */
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_device_recov_mapped_node(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg,
uint32_t evt)
{
lpfc_disc_set_adisc(vport, ndlp);
ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
spin_unlock_irq(&ndlp->lock);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
/* Ignore PLOGI if we have an outstanding LOGO */
if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC))
return ndlp->nlp_state;
if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) {
lpfc_cancel_retry_delay_tmo(vport, ndlp);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC);
spin_unlock_irq(&ndlp->lock);
} else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
/* send PLOGI immediately, move to PLOGI issue state */
if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
}
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
struct ls_rjt stat;
memset(&stat, 0, sizeof (struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
/*
* ADISC nodes will be handled in regular discovery path after
* receiving response from NS.
*
* For other nodes, Send PLOGI to trigger an implicit LOGO.
*/
if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
}
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO);
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
lpfc_rcv_padisc(vport, ndlp, cmdiocb);
/*
* Do not start discovery if discovery is about to start
* or discovery in progress for this node. Starting discovery
* here will affect the counting of discovery threads.
*/
if (!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
/*
* ADISC nodes will be handled in regular discovery path after
* receiving response from NS.
*
* For other nodes, Send PLOGI to trigger an implicit LOGO.
*/
if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
}
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_LOGO_ACC;
spin_unlock_irq(&ndlp->lock);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) {
mod_timer(&ndlp->nlp_delayfunc,
jiffies + msecs_to_jiffies(1000 * 1));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_PLOGI;
} else {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb, *rspiocb;
u32 ulp_status;
cmdiocb = (struct lpfc_iocbq *) arg;
rspiocb = cmdiocb->rsp_iocb;
ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ulp_status)
return NLP_STE_FREED_NODE;
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb, *rspiocb;
u32 ulp_status;
cmdiocb = (struct lpfc_iocbq *) arg;
rspiocb = cmdiocb->rsp_iocb;
ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
/* For the fabric port just clear the fc flags. */
if (ndlp->nlp_DID == Fabric_DID) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
spin_unlock_irq(shost->host_lock);
}
lpfc_unreg_rpi(vport, ndlp);
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb, *rspiocb;
u32 ulp_status;
cmdiocb = (struct lpfc_iocbq *) arg;
rspiocb = cmdiocb->rsp_iocb;
ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ulp_status && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) {
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
MAILBOX_t *mb = &pmb->u.mb;
if (!mb->mbxStatus) {
/* SLI4 ports have preallocated logical rpis. */
if (vport->phba->sli_rev < LPFC_SLI_REV4)
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
if (ndlp->nlp_flag & NLP_LOGO_ACC) {
lpfc_unreg_rpi(vport, ndlp);
}
} else {
if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
}
return ndlp->nlp_state;
}
static uint32_t
lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
if (ndlp->nlp_flag & NLP_NPR_2B_DISC) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NODEV_REMOVE;
spin_unlock_irq(&ndlp->lock);
return ndlp->nlp_state;
}
lpfc_drop_node(vport, ndlp);
return NLP_STE_FREED_NODE;
}
static uint32_t
lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
/* Don't do anything that will mess up processing of the
* previous RSCN.
*/
if (vport->fc_flag & FC_RSCN_DEFERRED)
return ndlp->nlp_state;
lpfc_cancel_retry_delay_tmo(vport, ndlp);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
spin_unlock_irq(&ndlp->lock);
return ndlp->nlp_state;
}
/* This next section defines the NPort Discovery State Machine */
/* There are 4 different double linked lists nodelist entries can reside on.
* The plogi list and adisc list are used when Link Up discovery or RSCN
* processing is needed. Each list holds the nodes that we will send PLOGI
* or ADISC on. These lists will keep track of what nodes will be effected
* by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up).
* The unmapped_list will contain all nodes that we have successfully logged
* into at the Fibre Channel level. The mapped_list will contain all nodes
* that are mapped FCP targets.
*/
/*
* The bind list is a list of undiscovered (potentially non-existent) nodes
* that we have saved binding information on. This information is used when
* nodes transition from the unmapped to the mapped list.
*/
/* For UNUSED_NODE state, the node has just been allocated .
* For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on
* the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list
* and put on the unmapped list. For ADISC processing, the node is taken off
* the ADISC list and placed on either the mapped or unmapped list (depending
* on its previous state). Once on the unmapped list, a PRLI is issued and the
* state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is
* changed to UNMAPPED_NODE. If the completion indicates a mapped
* node, the node is taken off the unmapped list. The binding list is checked
* for a valid binding, or a binding is automatically assigned. If binding
* assignment is unsuccessful, the node is left on the unmapped list. If
* binding assignment is successful, the associated binding list entry (if
* any) is removed, and the node is placed on the mapped list.
*/
/*
* For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
* lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
* expire, all effected nodes will receive a DEVICE_RM event.
*/
/*
* For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists
* to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap
* check, additional nodes may be added or removed (via DEVICE_RM) to / from
* the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated,
* we will first process the ADISC list. 32 entries are processed initially and
* ADISC is initited for each one. Completions / Events for each node are
* funnelled thru the state machine. As each node finishes ADISC processing, it
* starts ADISC for any nodes waiting for ADISC processing. If no nodes are
* waiting, and the ADISC list count is identically 0, then we are done. For
* Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we
* can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI
* list. 32 entries are processed initially and PLOGI is initited for each one.
* Completions / Events for each node are funnelled thru the state machine. As
* each node finishes PLOGI processing, it starts PLOGI for any nodes waiting
* for PLOGI processing. If no nodes are waiting, and the PLOGI list count is
* indentically 0, then we are done. We have now completed discovery / RSCN
* handling. Upon completion, ALL nodes should be on either the mapped or
* unmapped lists.
*/
static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
(struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = {
/* Action routine Event Current State */
lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */
lpfc_rcv_els_unused_node, /* RCV_PRLI */
lpfc_rcv_logo_unused_node, /* RCV_LOGO */
lpfc_rcv_els_unused_node, /* RCV_ADISC */
lpfc_rcv_els_unused_node, /* RCV_PDISC */
lpfc_rcv_els_unused_node, /* RCV_PRLO */
lpfc_disc_illegal, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
lpfc_device_rm_unused_node, /* DEVICE_RM */
lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */
lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */
lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */
lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */
lpfc_rcv_els_plogi_issue, /* RCV_ADISC */
lpfc_rcv_els_plogi_issue, /* RCV_PDISC */
lpfc_rcv_els_plogi_issue, /* RCV_PRLO */
lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */
lpfc_device_rm_plogi_issue, /* DEVICE_RM */
lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */
lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */
lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */
lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */
lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */
lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */
lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */
lpfc_disc_illegal, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
lpfc_disc_illegal, /* CMPL_LOGO */
lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
lpfc_device_rm_adisc_issue, /* DEVICE_RM */
lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */
lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */
lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */
lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */
lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */
lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */
lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */
lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
lpfc_disc_illegal, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */
lpfc_device_rm_reglogin_issue, /* DEVICE_RM */
lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */
lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */
lpfc_rcv_prli_prli_issue, /* RCV_PRLI */
lpfc_rcv_logo_prli_issue, /* RCV_LOGO */
lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */
lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */
lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */
lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */
lpfc_disc_illegal, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
lpfc_device_rm_prli_issue, /* DEVICE_RM */
lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */
lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */
lpfc_rcv_prli_logo_issue, /* RCV_PRLI */
lpfc_rcv_logo_logo_issue, /* RCV_LOGO */
lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */
lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */
lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */
lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
lpfc_device_rm_logo_issue, /* DEVICE_RM */
lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */
lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */
lpfc_rcv_prli_unmap_node, /* RCV_PRLI */
lpfc_rcv_logo_unmap_node, /* RCV_LOGO */
lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */
lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */
lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */
lpfc_disc_illegal, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
lpfc_disc_illegal, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
lpfc_device_rm_unmap_node, /* DEVICE_RM */
lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */
lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */
lpfc_rcv_prli_mapped_node, /* RCV_PRLI */
lpfc_rcv_logo_mapped_node, /* RCV_LOGO */
lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */
lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */
lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */
lpfc_disc_illegal, /* CMPL_PLOGI */
lpfc_disc_illegal, /* CMPL_PRLI */
lpfc_disc_illegal, /* CMPL_LOGO */
lpfc_disc_illegal, /* CMPL_ADISC */
lpfc_disc_illegal, /* CMPL_REG_LOGIN */
lpfc_disc_illegal, /* DEVICE_RM */
lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */
lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */
lpfc_rcv_prli_npr_node, /* RCV_PRLI */
lpfc_rcv_logo_npr_node, /* RCV_LOGO */
lpfc_rcv_padisc_npr_node, /* RCV_ADISC */
lpfc_rcv_padisc_npr_node, /* RCV_PDISC */
lpfc_rcv_prlo_npr_node, /* RCV_PRLO */
lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */
lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */
lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */
lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */
lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */
lpfc_device_rm_npr_node, /* DEVICE_RM */
lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */
};
int
lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
void *arg, uint32_t evt)
{
uint32_t cur_state, rc;
uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
uint32_t);
uint32_t got_ndlp = 0;
uint32_t data1;
if (lpfc_nlp_get(ndlp))
got_ndlp = 1;
cur_state = ndlp->nlp_state;
data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) |
((uint32_t)ndlp->nlp_type));
/* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0211 DSM in event x%x on NPort x%x in "
"state %d rpi x%x Data: x%x x%x\n",
evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi,
ndlp->nlp_flag, data1);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
"DSM in: evt:%d ste:%d did:x%x",
evt, cur_state, ndlp->nlp_DID);
func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt];
rc = (func) (vport, ndlp, arg, evt);
/* DSM out state <rc> on NPort <nlp_DID> */
if (got_ndlp) {
data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) |
((uint32_t)ndlp->nlp_type));
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0212 DSM out state %d on NPort x%x "
"rpi x%x Data: x%x x%x\n",
rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag,
data1);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
"DSM out: ste:%d did:x%x flg:x%x",
rc, ndlp->nlp_DID, ndlp->nlp_flag);
/* Decrement the ndlp reference count held for this function */
lpfc_nlp_put(ndlp);
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0213 DSM out state %d on NPort free\n", rc);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
"DSM out: ste:%d did:x%x flg:x%x",
rc, 0, 0);
}
return rc;
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_nportdisc.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
/* See Fibre Channel protocol T11 FC-LS for details */
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <uapi/scsi/fc/fc_fs.h>
#include <uapi/scsi/fc/fc_els.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"
static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *);
static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *);
static void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp, uint8_t retry);
static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
struct lpfc_iocbq *iocb);
static void lpfc_cmpl_els_edc(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb);
static void lpfc_cmpl_els_uvem(struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *);
static int lpfc_max_els_tries = 3;
static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport);
static void lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max);
static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid);
/**
* lpfc_els_chk_latt - Check host link attention event for a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine checks whether there is an outstanding host link
* attention event during the discovery process with the @vport. It is done
* by reading the HBA's Host Attention (HA) register. If there is any host
* link attention events during this @vport's discovery process, the @vport
* shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
* be issued if the link state is not already in host link cleared state,
* and a return code shall indicate whether the host link attention event
* had happened.
*
* Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
* state in LPFC_VPORT_READY, the request for checking host link attention
* event will be ignored and a return code shall indicate no host link
* attention event had happened.
*
* Return codes
* 0 - no host link attention event happened
* 1 - host link attention event happened
**/
int
lpfc_els_chk_latt(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
uint32_t ha_copy;
if (vport->port_state >= LPFC_VPORT_READY ||
phba->link_state == LPFC_LINK_DOWN ||
phba->sli_rev > LPFC_SLI_REV3)
return 0;
/* Read the HBA Host Attention Register */
if (lpfc_readl(phba->HAregaddr, &ha_copy))
return 1;
if (!(ha_copy & HA_LATT))
return 0;
/* Pending Link Event during Discovery */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0237 Pending Link Event during "
"Discovery: State x%x\n",
phba->pport->port_state);
/* CLEAR_LA should re-enable link attention events and
* we should then immediately take a LATT event. The
* LATT processing should call lpfc_linkdown() which
* will cleanup any left over in-progress discovery
* events.
*/
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_ABORT_DISCOVERY;
spin_unlock_irq(shost->host_lock);
if (phba->link_state != LPFC_CLEAR_LA)
lpfc_issue_clear_la(phba, vport);
return 1;
}
/**
* lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
* @vport: pointer to a host virtual N_Port data structure.
* @expect_rsp: flag indicating whether response is expected.
* @cmd_size: size of the ELS command.
* @retry: number of retries to the command when it fails.
* @ndlp: pointer to a node-list data structure.
* @did: destination identifier.
* @elscmd: the ELS command code.
*
* This routine is used for allocating a lpfc-IOCB data structure from
* the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
* passed into the routine for discovery state machine to issue an Extended
* Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
* and preparation routine that is used by all the discovery state machine
* routines and the ELS command-specific fields will be later set up by
* the individual discovery machine routines after calling this routine
* allocating and preparing a generic IOCB data structure. It fills in the
* Buffer Descriptor Entries (BDEs), allocates buffers for both command
* payload and response payload (if expected). The reference count on the
* ndlp is incremented by 1 and the reference to the ndlp is put into
* ndlp of the IOCB data structure for this IOCB to hold the ndlp
* reference for the command's callback function to access later.
*
* Return code
* Pointer to the newly allocated/prepared els iocb data structure
* NULL - when els iocb data structure allocation/preparation failed
**/
struct lpfc_iocbq *
lpfc_prep_els_iocb(struct lpfc_vport *vport, u8 expect_rsp,
u16 cmd_size, u8 retry,
struct lpfc_nodelist *ndlp, u32 did,
u32 elscmd)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
struct lpfc_dmabuf *pcmd, *prsp, *pbuflist, *bmp;
struct ulp_bde64_le *bpl;
u32 timeout = 0;
if (!lpfc_is_link_up(phba))
return NULL;
/* Allocate buffer for command iocb */
elsiocb = lpfc_sli_get_iocbq(phba);
if (!elsiocb)
return NULL;
/*
* If this command is for fabric controller and HBA running
* in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
*/
if ((did == Fabric_DID) &&
(phba->hba_flag & HBA_FIP_SUPPORT) &&
((elscmd == ELS_CMD_FLOGI) ||
(elscmd == ELS_CMD_FDISC) ||
(elscmd == ELS_CMD_LOGO)))
switch (elscmd) {
case ELS_CMD_FLOGI:
elsiocb->cmd_flag |=
((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT)
& LPFC_FIP_ELS_ID_MASK);
break;
case ELS_CMD_FDISC:
elsiocb->cmd_flag |=
((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT)
& LPFC_FIP_ELS_ID_MASK);
break;
case ELS_CMD_LOGO:
elsiocb->cmd_flag |=
((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT)
& LPFC_FIP_ELS_ID_MASK);
break;
}
else
elsiocb->cmd_flag &= ~LPFC_FIP_ELS_ID_MASK;
/* fill in BDEs for command */
/* Allocate buffer for command payload */
pcmd = kmalloc(sizeof(*pcmd), GFP_KERNEL);
if (pcmd)
pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
if (!pcmd || !pcmd->virt)
goto els_iocb_free_pcmb_exit;
INIT_LIST_HEAD(&pcmd->list);
/* Allocate buffer for response payload */
if (expect_rsp) {
prsp = kmalloc(sizeof(*prsp), GFP_KERNEL);
if (prsp)
prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&prsp->phys);
if (!prsp || !prsp->virt)
goto els_iocb_free_prsp_exit;
INIT_LIST_HEAD(&prsp->list);
} else {
prsp = NULL;
}
/* Allocate buffer for Buffer ptr list */
pbuflist = kmalloc(sizeof(*pbuflist), GFP_KERNEL);
if (pbuflist)
pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&pbuflist->phys);
if (!pbuflist || !pbuflist->virt)
goto els_iocb_free_pbuf_exit;
INIT_LIST_HEAD(&pbuflist->list);
if (expect_rsp) {
switch (elscmd) {
case ELS_CMD_FLOGI:
timeout = FF_DEF_RATOV * 2;
break;
case ELS_CMD_LOGO:
timeout = phba->fc_ratov;
break;
default:
timeout = phba->fc_ratov * 2;
}
/* Fill SGE for the num bde count */
elsiocb->num_bdes = 2;
}
if (phba->sli_rev == LPFC_SLI_REV4)
bmp = pcmd;
else
bmp = pbuflist;
lpfc_sli_prep_els_req_rsp(phba, elsiocb, vport, bmp, cmd_size, did,
elscmd, timeout, expect_rsp);
bpl = (struct ulp_bde64_le *)pbuflist->virt;
bpl->addr_low = cpu_to_le32(putPaddrLow(pcmd->phys));
bpl->addr_high = cpu_to_le32(putPaddrHigh(pcmd->phys));
bpl->type_size = cpu_to_le32(cmd_size);
bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64);
if (expect_rsp) {
bpl++;
bpl->addr_low = cpu_to_le32(putPaddrLow(prsp->phys));
bpl->addr_high = cpu_to_le32(putPaddrHigh(prsp->phys));
bpl->type_size = cpu_to_le32(FCELSSIZE);
bpl->type_size |= cpu_to_le32(ULP_BDE64_TYPE_BDE_64);
}
elsiocb->cmd_dmabuf = pcmd;
elsiocb->bpl_dmabuf = pbuflist;
elsiocb->retry = retry;
elsiocb->vport = vport;
elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
if (prsp)
list_add(&prsp->list, &pcmd->list);
if (expect_rsp) {
/* Xmit ELS command <elsCmd> to remote NPORT <did> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0116 Xmit ELS command x%x to remote "
"NPORT x%x I/O tag: x%x, port state:x%x "
"rpi x%x fc_flag:x%x\n",
elscmd, did, elsiocb->iotag,
vport->port_state, ndlp->nlp_rpi,
vport->fc_flag);
} else {
/* Xmit ELS response <elsCmd> to remote NPORT <did> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0117 Xmit ELS response x%x to remote "
"NPORT x%x I/O tag: x%x, size: x%x "
"port_state x%x rpi x%x fc_flag x%x\n",
elscmd, ndlp->nlp_DID, elsiocb->iotag,
cmd_size, vport->port_state,
ndlp->nlp_rpi, vport->fc_flag);
}
return elsiocb;
els_iocb_free_pbuf_exit:
if (expect_rsp)
lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
kfree(pbuflist);
els_iocb_free_prsp_exit:
lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
kfree(prsp);
els_iocb_free_pcmb_exit:
kfree(pcmd);
lpfc_sli_release_iocbq(phba, elsiocb);
return NULL;
}
/**
* lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine issues a fabric registration login for a @vport. An
* active ndlp node with Fabric_DID must already exist for this @vport.
* The routine invokes two mailbox commands to carry out fabric registration
* login through the HBA firmware: the first mailbox command requests the
* HBA to perform link configuration for the @vport; and the second mailbox
* command requests the HBA to perform the actual fabric registration login
* with the @vport.
*
* Return code
* 0 - successfully issued fabric registration login for @vport
* -ENXIO -- failed to issue fabric registration login for @vport
**/
int
lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
struct lpfc_nodelist *ndlp;
struct serv_parm *sp;
int rc;
int err = 0;
sp = &phba->fc_fabparam;
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp) {
err = 1;
goto fail;
}
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
err = 2;
goto fail;
}
vport->port_state = LPFC_FABRIC_CFG_LINK;
lpfc_config_link(phba, mbox);
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
err = 3;
goto fail_free_mbox;
}
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
err = 4;
goto fail;
}
rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
ndlp->nlp_rpi);
if (rc) {
err = 5;
goto fail_free_mbox;
}
mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
mbox->vport = vport;
/* increment the reference count on ndlp to hold reference
* for the callback routine.
*/
mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
if (!mbox->ctx_ndlp) {
err = 6;
goto fail_free_mbox;
}
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
err = 7;
goto fail_issue_reg_login;
}
return 0;
fail_issue_reg_login:
/* decrement the reference count on ndlp just incremented
* for the failed mbox command.
*/
lpfc_nlp_put(ndlp);
fail_free_mbox:
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
fail:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0249 Cannot issue Register Fabric login: Err %d\n",
err);
return -ENXIO;
}
/**
* lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
* the @vport. This mailbox command is necessary for SLI4 port only.
*
* Return code
* 0 - successfully issued REG_VFI for @vport
* A failure code otherwise.
**/
int
lpfc_issue_reg_vfi(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mboxq = NULL;
struct lpfc_nodelist *ndlp;
struct lpfc_dmabuf *dmabuf = NULL;
int rc = 0;
/* move forward in case of SLI4 FC port loopback test and pt2pt mode */
if ((phba->sli_rev == LPFC_SLI_REV4) &&
!(phba->link_flag & LS_LOOPBACK_MODE) &&
!(vport->fc_flag & FC_PT2PT)) {
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp) {
rc = -ENODEV;
goto fail;
}
}
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
rc = -ENOMEM;
goto fail;
}
/* Supply CSP's only if we are fabric connect or pt-to-pt connect */
if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
rc = lpfc_mbox_rsrc_prep(phba, mboxq);
if (rc) {
rc = -ENOMEM;
goto fail_mbox;
}
dmabuf = mboxq->ctx_buf;
memcpy(dmabuf->virt, &phba->fc_fabparam,
sizeof(struct serv_parm));
}
vport->port_state = LPFC_FABRIC_CFG_LINK;
if (dmabuf) {
lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
/* lpfc_reg_vfi memsets the mailbox. Restore the ctx_buf. */
mboxq->ctx_buf = dmabuf;
} else {
lpfc_reg_vfi(mboxq, vport, 0);
}
mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
mboxq->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
rc = -ENXIO;
goto fail_mbox;
}
return 0;
fail_mbox:
lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);
fail:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0289 Issue Register VFI failed: Err %d\n", rc);
return rc;
}
/**
* lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
* the @vport. This mailbox command is necessary for SLI4 port only.
*
* Return code
* 0 - successfully issued REG_VFI for @vport
* A failure code otherwise.
**/
int
lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct Scsi_Host *shost;
LPFC_MBOXQ_t *mboxq;
int rc;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2556 UNREG_VFI mbox allocation failed"
"HBA state x%x\n", phba->pport->port_state);
return -ENOMEM;
}
lpfc_unreg_vfi(mboxq, vport);
mboxq->vport = vport;
mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2557 UNREG_VFI issue mbox failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
mempool_free(mboxq, phba->mbox_mem_pool);
return -EIO;
}
shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_VFI_REGISTERED;
spin_unlock_irq(shost->host_lock);
return 0;
}
/**
* lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
* @vport: pointer to a host virtual N_Port data structure.
* @sp: pointer to service parameter data structure.
*
* This routine is called from FLOGI/FDISC completion handler functions.
* lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
* node nodename is changed in the completion service parameter else return
* 0. This function also set flag in the vport data structure to delay
* NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
* in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
* node nodename is changed in the completion service parameter.
*
* Return code
* 0 - FCID and Fabric Nodename and Fabric portname is not changed.
* 1 - FCID or Fabric Nodename or Fabric portname is changed.
*
**/
static uint8_t
lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
struct serv_parm *sp)
{
struct lpfc_hba *phba = vport->phba;
uint8_t fabric_param_changed = 0;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if ((vport->fc_prevDID != vport->fc_myDID) ||
memcmp(&vport->fabric_portname, &sp->portName,
sizeof(struct lpfc_name)) ||
memcmp(&vport->fabric_nodename, &sp->nodeName,
sizeof(struct lpfc_name)) ||
(vport->vport_flag & FAWWPN_PARAM_CHG)) {
fabric_param_changed = 1;
vport->vport_flag &= ~FAWWPN_PARAM_CHG;
}
/*
* Word 1 Bit 31 in common service parameter is overloaded.
* Word 1 Bit 31 in FLOGI request is multiple NPort request
* Word 1 Bit 31 in FLOGI response is clean address bit
*
* If fabric parameter is changed and clean address bit is
* cleared delay nport discovery if
* - vport->fc_prevDID != 0 (not initial discovery) OR
* - lpfc_delay_discovery module parameter is set.
*/
if (fabric_param_changed && !sp->cmn.clean_address_bit &&
(vport->fc_prevDID || phba->cfg_delay_discovery)) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_DISC_DELAYED;
spin_unlock_irq(shost->host_lock);
}
return fabric_param_changed;
}
/**
* lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
* @vport: pointer to a host virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
* @sp: pointer to service parameter data structure.
* @ulp_word4: command response value
*
* This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
* function to handle the completion of a Fabric Login (FLOGI) into a fabric
* port in a fabric topology. It properly sets up the parameters to the @ndlp
* from the IOCB response. It also check the newly assigned N_Port ID to the
* @vport against the previously assigned N_Port ID. If it is different from
* the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
* is invoked on all the remaining nodes with the @vport to unregister the
* Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
* is invoked to register login to the fabric.
*
* Return code
* 0 - Success (currently, always return 0)
**/
static int
lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct serv_parm *sp, uint32_t ulp_word4)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *np;
struct lpfc_nodelist *next_np;
uint8_t fabric_param_changed;
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_FABRIC;
spin_unlock_irq(shost->host_lock);
phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
phba->fc_edtovResol = sp->cmn.edtovResolution;
phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_PUBLIC_LOOP;
spin_unlock_irq(shost->host_lock);
}
vport->fc_myDID = ulp_word4 & Mask_DID;
memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
ndlp->nlp_class_sup = 0;
if (sp->cls1.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS1;
if (sp->cls2.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS2;
if (sp->cls3.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS3;
if (sp->cls4.classValid)
ndlp->nlp_class_sup |= FC_COS_CLASS4;
ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
sp->cmn.bbRcvSizeLsb;
fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
if (fabric_param_changed) {
/* Reset FDMI attribute masks based on config parameter */
if (phba->cfg_enable_SmartSAN ||
(phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
/* Setup appropriate attribute masks */
vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
if (phba->cfg_enable_SmartSAN)
vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
else
vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
} else {
vport->fdmi_hba_mask = 0;
vport->fdmi_port_mask = 0;
}
}
memcpy(&vport->fabric_portname, &sp->portName,
sizeof(struct lpfc_name));
memcpy(&vport->fabric_nodename, &sp->nodeName,
sizeof(struct lpfc_name));
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
if (sp->cmn.response_multiple_NPort) {
lpfc_printf_vlog(vport, KERN_WARNING,
LOG_ELS | LOG_VPORT,
"1816 FLOGI NPIV supported, "
"response data 0x%x\n",
sp->cmn.response_multiple_NPort);
spin_lock_irq(&phba->hbalock);
phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
spin_unlock_irq(&phba->hbalock);
} else {
/* Because we asked f/w for NPIV it still expects us
to call reg_vnpid at least for the physical host */
lpfc_printf_vlog(vport, KERN_WARNING,
LOG_ELS | LOG_VPORT,
"1817 Fabric does not support NPIV "
"- configuring single port mode.\n");
spin_lock_irq(&phba->hbalock);
phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
spin_unlock_irq(&phba->hbalock);
}
}
/*
* For FC we need to do some special processing because of the SLI
* Port's default settings of the Common Service Parameters.
*/
if ((phba->sli_rev == LPFC_SLI_REV4) &&
(phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
if (fabric_param_changed)
lpfc_unregister_fcf_prep(phba);
/* This should just update the VFI CSPs*/
if (vport->fc_flag & FC_VFI_REGISTERED)
lpfc_issue_reg_vfi(vport);
}
if (fabric_param_changed &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/* If our NportID changed, we need to ensure all
* remaining NPORTs get unreg_login'ed.
*/
list_for_each_entry_safe(np, next_np,
&vport->fc_nodes, nlp_listp) {
if ((np->nlp_state != NLP_STE_NPR_NODE) ||
!(np->nlp_flag & NLP_NPR_ADISC))
continue;
spin_lock_irq(&np->lock);
np->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&np->lock);
lpfc_unreg_rpi(vport, np);
}
lpfc_cleanup_pending_mbox(vport);
if (phba->sli_rev == LPFC_SLI_REV4) {
lpfc_sli4_unreg_all_rpis(vport);
lpfc_mbx_unreg_vpi(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
spin_unlock_irq(shost->host_lock);
}
/*
* For SLI3 and SLI4, the VPI needs to be reregistered in
* response to this fabric parameter change event.
*/
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
} else if ((phba->sli_rev == LPFC_SLI_REV4) &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/*
* Driver needs to re-reg VPI in order for f/w
* to update the MAC address.
*/
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
lpfc_register_new_vport(phba, vport, ndlp);
return 0;
}
if (phba->sli_rev < LPFC_SLI_REV4) {
lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
lpfc_register_new_vport(phba, vport, ndlp);
else
lpfc_issue_fabric_reglogin(vport);
} else {
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
(vport->vpi_state & LPFC_VPI_REGISTERED)) {
lpfc_start_fdiscs(phba);
lpfc_do_scr_ns_plogi(phba, vport);
} else if (vport->fc_flag & FC_VFI_REGISTERED)
lpfc_issue_init_vpi(vport);
else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3135 Need register VFI: (x%x/%x)\n",
vport->fc_prevDID, vport->fc_myDID);
lpfc_issue_reg_vfi(vport);
}
}
return 0;
}
/**
* lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
* @vport: pointer to a host virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
* @sp: pointer to service parameter data structure.
*
* This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
* function to handle the completion of a Fabric Login (FLOGI) into an N_Port
* in a point-to-point topology. First, the @vport's N_Port Name is compared
* with the received N_Port Name: if the @vport's N_Port Name is greater than
* the received N_Port Name lexicographically, this node shall assign local
* N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
* will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
* this node shall just wait for the remote node to issue PLOGI and assign
* N_Port IDs.
*
* Return code
* 0 - Success
* -ENXIO - Fail
**/
static int
lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct serv_parm *sp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
vport->fc_flag |= FC_PT2PT;
spin_unlock_irq(shost->host_lock);
/* If we are pt2pt with another NPort, force NPIV off! */
phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
lpfc_unregister_fcf_prep(phba);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_VFI_REGISTERED;
spin_unlock_irq(shost->host_lock);
phba->fc_topology_changed = 0;
}
rc = memcmp(&vport->fc_portname, &sp->portName,
sizeof(vport->fc_portname));
if (rc >= 0) {
/* This side will initiate the PLOGI */
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_PT2PT_PLOGI;
spin_unlock_irq(shost->host_lock);
/*
* N_Port ID cannot be 0, set our Id to LocalID
* the other side will be RemoteID.
*/
/* not equal */
if (rc)
vport->fc_myDID = PT2PT_LocalID;
/* If not registered with a transport, decrement ndlp reference
* count indicating that ndlp can be safely released when other
* references are removed.
*/
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)))
lpfc_nlp_put(ndlp);
ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
if (!ndlp) {
/*
* Cannot find existing Fabric ndlp, so allocate a
* new one
*/
ndlp = lpfc_nlp_init(vport, PT2PT_RemoteID);
if (!ndlp)
goto fail;
}
memcpy(&ndlp->nlp_portname, &sp->portName,
sizeof(struct lpfc_name));
memcpy(&ndlp->nlp_nodename, &sp->nodeName,
sizeof(struct lpfc_name));
/* Set state will put ndlp onto node list if not already done */
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
goto fail;
lpfc_config_link(phba, mbox);
mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
goto fail;
}
} else {
/* This side will wait for the PLOGI. If not registered with
* a transport, decrement node reference count indicating that
* ndlp can be released when other references are removed.
*/
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)))
lpfc_nlp_put(ndlp);
/* Start discovery - this should just do CLEAR_LA */
lpfc_disc_start(vport);
}
return 0;
fail:
return -ENXIO;
}
/**
* lpfc_cmpl_els_flogi - Completion callback function for flogi
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the top-level completion callback function for issuing
* a Fabric Login (FLOGI) command. If the response IOCB reported error,
* the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
* retry has been made (either immediately or delayed with lpfc_els_retry()
* returning 1), the command IOCB will be released and function returned.
* If the retry attempt has been given up (possibly reach the maximum
* number of retries), one additional decrement of ndlp reference shall be
* invoked before going out after releasing the command IOCB. This will
* actually release the remote node (Note, lpfc_els_free_iocb() will also
* invoke one decrement of ndlp reference count). If no error reported in
* the IOCB status, the command Port ID field is used to determine whether
* this is a point-to-point topology or a fabric topology: if the Port ID
* field is assigned, it is a fabric topology; otherwise, it is a
* point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
* lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
* specific topology completion conditions.
**/
static void
lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
IOCB_t *irsp;
struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp;
struct serv_parm *sp;
uint16_t fcf_index;
int rc;
u32 ulp_status, ulp_word4, tmo;
bool flogi_in_retry = false;
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport)) {
/* One additional decrement on node reference count to
* trigger the release of the node
*/
if (!(ndlp->fc4_xpt_flags & SCSI_XPT_REGD))
lpfc_nlp_put(ndlp);
goto out;
}
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
tmo = get_wqe_tmo(cmdiocb);
} else {
irsp = &rspiocb->iocb;
tmo = irsp->ulpTimeout;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"FLOGI cmpl: status:x%x/x%x state:x%x",
ulp_status, ulp_word4,
vport->port_state);
if (ulp_status) {
/*
* In case of FIP mode, perform roundrobin FCF failover
* due to new FCF discovery
*/
if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
(phba->fcf.fcf_flag & FCF_DISCOVERY)) {
if (phba->link_state < LPFC_LINK_UP)
goto stop_rr_fcf_flogi;
if ((phba->fcoe_cvl_eventtag_attn ==
phba->fcoe_cvl_eventtag) &&
(ulp_status == IOSTAT_LOCAL_REJECT) &&
((ulp_word4 & IOERR_PARAM_MASK) ==
IOERR_SLI_ABORTED))
goto stop_rr_fcf_flogi;
else
phba->fcoe_cvl_eventtag_attn =
phba->fcoe_cvl_eventtag;
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
"2611 FLOGI failed on FCF (x%x), "
"status:x%x/x%x, tmo:x%x, perform "
"roundrobin FCF failover\n",
phba->fcf.current_rec.fcf_indx,
ulp_status, ulp_word4, tmo);
lpfc_sli4_set_fcf_flogi_fail(phba,
phba->fcf.current_rec.fcf_indx);
fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
if (rc)
goto out;
}
stop_rr_fcf_flogi:
/* FLOGI failure */
if (!(ulp_status == IOSTAT_LOCAL_REJECT &&
((ulp_word4 & IOERR_PARAM_MASK) ==
IOERR_LOOP_OPEN_FAILURE)))
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2858 FLOGI failure Status:x%x/x%x TMO"
":x%x Data x%x x%x\n",
ulp_status, ulp_word4, tmo,
phba->hba_flag, phba->fcf.fcf_flag);
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* Address a timing race with dev_loss. If dev_loss
* is active on this FPort node, put the initial ref
* count back to stop premature node release actions.
*/
lpfc_check_nlp_post_devloss(vport, ndlp);
flogi_in_retry = true;
goto out;
}
/* The FLOGI will not be retried. If the FPort node is not
* registered with the SCSI transport, remove the initial
* reference to trigger node release.
*/
if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS) &&
!(ndlp->fc4_xpt_flags & SCSI_XPT_REGD))
lpfc_nlp_put(ndlp);
lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
"0150 FLOGI failure Status:x%x/x%x "
"xri x%x TMO:x%x refcnt %d\n",
ulp_status, ulp_word4, cmdiocb->sli4_xritag,
tmo, kref_read(&ndlp->kref));
/* If this is not a loop open failure, bail out */
if (!(ulp_status == IOSTAT_LOCAL_REJECT &&
((ulp_word4 & IOERR_PARAM_MASK) ==
IOERR_LOOP_OPEN_FAILURE))) {
/* FLOGI failure */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0100 FLOGI failure Status:x%x/x%x "
"TMO:x%x\n",
ulp_status, ulp_word4, tmo);
goto flogifail;
}
/* FLOGI failed, so there is no fabric */
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP |
FC_PT2PT_NO_NVME);
spin_unlock_irq(shost->host_lock);
/* If private loop, then allow max outstanding els to be
* LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
* alpa map would take too long otherwise.
*/
if (phba->alpa_map[0] == 0)
vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
if ((phba->sli_rev == LPFC_SLI_REV4) &&
(!(vport->fc_flag & FC_VFI_REGISTERED) ||
(vport->fc_prevDID != vport->fc_myDID) ||
phba->fc_topology_changed)) {
if (vport->fc_flag & FC_VFI_REGISTERED) {
if (phba->fc_topology_changed) {
lpfc_unregister_fcf_prep(phba);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_VFI_REGISTERED;
spin_unlock_irq(shost->host_lock);
phba->fc_topology_changed = 0;
} else {
lpfc_sli4_unreg_all_rpis(vport);
}
}
/* Do not register VFI if the driver aborted FLOGI */
if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4))
lpfc_issue_reg_vfi(vport);
goto out;
}
goto flogifail;
}
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
spin_unlock_irq(shost->host_lock);
/*
* The FLOGI succeeded. Sync the data for the CPU before
* accessing it.
*/
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
if (!prsp)
goto out;
sp = prsp->virt + sizeof(uint32_t);
/* FLOGI completes successfully */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0101 FLOGI completes successfully, I/O tag:x%x "
"xri x%x Data: x%x x%x x%x x%x x%x x%x x%x %d\n",
cmdiocb->iotag, cmdiocb->sli4_xritag,
ulp_word4, sp->cmn.e_d_tov,
sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
vport->port_state, vport->fc_flag,
sp->cmn.priority_tagging, kref_read(&ndlp->kref));
if (sp->cmn.priority_tagging)
vport->phba->pport->vmid_flag |= (LPFC_VMID_ISSUE_QFPA |
LPFC_VMID_TYPE_PRIO);
/* reinitialize the VMID datastructure before returning */
if (lpfc_is_vmid_enabled(phba))
lpfc_reinit_vmid(vport);
/*
* Address a timing race with dev_loss. If dev_loss is active on
* this FPort node, put the initial ref count back to stop premature
* node release actions.
*/
lpfc_check_nlp_post_devloss(vport, ndlp);
if (vport->port_state == LPFC_FLOGI) {
/*
* If Common Service Parameters indicate Nport
* we are point to point, if Fport we are Fabric.
*/
if (sp->cmn.fPort)
rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp,
ulp_word4);
else if (!(phba->hba_flag & HBA_FCOE_MODE))
rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
else {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2831 FLOGI response with cleared Fabric "
"bit fcf_index 0x%x "
"Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
"Fabric Name "
"%02x%02x%02x%02x%02x%02x%02x%02x\n",
phba->fcf.current_rec.fcf_indx,
phba->fcf.current_rec.switch_name[0],
phba->fcf.current_rec.switch_name[1],
phba->fcf.current_rec.switch_name[2],
phba->fcf.current_rec.switch_name[3],
phba->fcf.current_rec.switch_name[4],
phba->fcf.current_rec.switch_name[5],
phba->fcf.current_rec.switch_name[6],
phba->fcf.current_rec.switch_name[7],
phba->fcf.current_rec.fabric_name[0],
phba->fcf.current_rec.fabric_name[1],
phba->fcf.current_rec.fabric_name[2],
phba->fcf.current_rec.fabric_name[3],
phba->fcf.current_rec.fabric_name[4],
phba->fcf.current_rec.fabric_name[5],
phba->fcf.current_rec.fabric_name[6],
phba->fcf.current_rec.fabric_name[7]);
lpfc_nlp_put(ndlp);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
spin_unlock_irq(&phba->hbalock);
phba->fcf.fcf_redisc_attempted = 0; /* reset */
goto out;
}
if (!rc) {
/* Mark the FCF discovery process done */
if (phba->hba_flag & HBA_FIP_SUPPORT)
lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
LOG_ELS,
"2769 FLOGI to FCF (x%x) "
"completed successfully\n",
phba->fcf.current_rec.fcf_indx);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
spin_unlock_irq(&phba->hbalock);
phba->fcf.fcf_redisc_attempted = 0; /* reset */
goto out;
}
} else if (vport->port_state > LPFC_FLOGI &&
vport->fc_flag & FC_PT2PT) {
/*
* In a p2p topology, it is possible that discovery has
* already progressed, and this completion can be ignored.
* Recheck the indicated topology.
*/
if (!sp->cmn.fPort)
goto out;
}
flogifail:
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
spin_unlock_irq(&phba->hbalock);
if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) {
/* FLOGI failed, so just use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
} else if (((ulp_status != IOSTAT_LOCAL_REJECT) ||
(((ulp_word4 & IOERR_PARAM_MASK) !=
IOERR_SLI_ABORTED) &&
((ulp_word4 & IOERR_PARAM_MASK) !=
IOERR_SLI_DOWN))) &&
(phba->link_state != LPFC_CLEAR_LA)) {
/* If FLOGI failed enable link interrupt. */
lpfc_issue_clear_la(phba, vport);
}
out:
if (!flogi_in_retry)
phba->hba_flag &= ~HBA_FLOGI_OUTSTANDING;
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
/**
* lpfc_cmpl_els_link_down - Completion callback function for ELS command
* aborted during a link down
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
*/
static void
lpfc_cmpl_els_link_down(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
uint32_t *pcmd;
uint32_t cmd;
u32 ulp_status, ulp_word4;
pcmd = (uint32_t *)cmdiocb->cmd_dmabuf->virt;
cmd = *pcmd;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"6445 ELS completes after LINK_DOWN: "
" Status %x/%x cmd x%x flg x%x\n",
ulp_status, ulp_word4, cmd,
cmdiocb->cmd_flag);
if (cmdiocb->cmd_flag & LPFC_IO_FABRIC) {
cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC;
atomic_dec(&phba->fabric_iocb_count);
}
lpfc_els_free_iocb(phba, cmdiocb);
}
/**
* lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
* @vport: pointer to a host virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
* @retry: number of retries to the command IOCB.
*
* This routine issues a Fabric Login (FLOGI) Request ELS command
* for a @vport. The initiator service parameters are put into the payload
* of the FLOGI Request IOCB and the top-level callback function pointer
* to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
* function field. The lpfc_issue_fabric_iocb routine is invoked to send
* out FLOGI ELS command with one outstanding fabric IOCB at a time.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the FLOGI ELS command.
*
* Return code
* 0 - successfully issued flogi iocb for @vport
* 1 - failed to issue flogi iocb for @vport
**/
static int
lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct serv_parm *sp;
union lpfc_wqe128 *wqe = NULL;
IOCB_t *icmd = NULL;
struct lpfc_iocbq *elsiocb;
struct lpfc_iocbq defer_flogi_acc;
u8 *pcmd, ct;
uint16_t cmdsize;
uint32_t tmo, did;
int rc;
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_FLOGI);
if (!elsiocb)
return 1;
wqe = &elsiocb->wqe;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
icmd = &elsiocb->iocb;
/* For FLOGI request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
sp = (struct serv_parm *) pcmd;
/* Setup CSPs accordingly for Fabric */
sp->cmn.e_d_tov = 0;
sp->cmn.w2.r_a_tov = 0;
sp->cmn.virtual_fabric_support = 0;
sp->cls1.classValid = 0;
if (sp->cmn.fcphLow < FC_PH3)
sp->cmn.fcphLow = FC_PH3;
if (sp->cmn.fcphHigh < FC_PH3)
sp->cmn.fcphHigh = FC_PH3;
/* Determine if switch supports priority tagging */
if (phba->cfg_vmid_priority_tagging) {
sp->cmn.priority_tagging = 1;
/* lpfc_vmid_host_uuid is combination of wwpn and wwnn */
if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0,
sizeof(vport->lpfc_vmid_host_uuid))) {
memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn,
sizeof(phba->wwpn));
memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn,
sizeof(phba->wwnn));
}
}
if (phba->sli_rev == LPFC_SLI_REV4) {
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_0) {
/* FLOGI needs to be 3 for WQE FCFI */
ct = SLI4_CT_FCFI;
bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
/* Set the fcfi to the fcfi we registered with */
bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
phba->fcf.fcfi);
}
/* Can't do SLI4 class2 without support sequence coalescing */
sp->cls2.classValid = 0;
sp->cls2.seqDelivery = 0;
} else {
/* Historical, setting sequential-delivery bit for SLI3 */
sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
sp->cmn.request_multiple_Nport = 1;
/* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
icmd->ulpCt_h = 1;
icmd->ulpCt_l = 0;
} else {
sp->cmn.request_multiple_Nport = 0;
}
if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
icmd->un.elsreq64.myID = 0;
icmd->un.elsreq64.fl = 1;
}
}
tmo = phba->fc_ratov;
phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
lpfc_set_disctmo(vport);
phba->fc_ratov = tmo;
phba->fc_stat.elsXmitFLOGI++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_flogi;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue FLOGI: opt:x%x",
phba->sli3_options, 0, 0);
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
/* Avoid race with FLOGI completion and hba_flags. */
phba->hba_flag |= (HBA_FLOGI_ISSUED | HBA_FLOGI_OUTSTANDING);
rc = lpfc_issue_fabric_iocb(phba, elsiocb);
if (rc == IOCB_ERROR) {
phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_FLOGI_OUTSTANDING);
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
/* Clear external loopback plug detected flag */
phba->link_flag &= ~LS_EXTERNAL_LOOPBACK;
/* Check for a deferred FLOGI ACC condition */
if (phba->defer_flogi_acc_flag) {
/* lookup ndlp for received FLOGI */
ndlp = lpfc_findnode_did(vport, 0);
if (!ndlp)
return 0;
did = vport->fc_myDID;
vport->fc_myDID = Fabric_DID;
memset(&defer_flogi_acc, 0, sizeof(struct lpfc_iocbq));
if (phba->sli_rev == LPFC_SLI_REV4) {
bf_set(wqe_ctxt_tag,
&defer_flogi_acc.wqe.xmit_els_rsp.wqe_com,
phba->defer_flogi_acc_rx_id);
bf_set(wqe_rcvoxid,
&defer_flogi_acc.wqe.xmit_els_rsp.wqe_com,
phba->defer_flogi_acc_ox_id);
} else {
icmd = &defer_flogi_acc.iocb;
icmd->ulpContext = phba->defer_flogi_acc_rx_id;
icmd->unsli3.rcvsli3.ox_id =
phba->defer_flogi_acc_ox_id;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3354 Xmit deferred FLOGI ACC: rx_id: x%x,"
" ox_id: x%x, hba_flag x%x\n",
phba->defer_flogi_acc_rx_id,
phba->defer_flogi_acc_ox_id, phba->hba_flag);
/* Send deferred FLOGI ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, &defer_flogi_acc,
ndlp, NULL);
phba->defer_flogi_acc_flag = false;
vport->fc_myDID = did;
/* Decrement ndlp reference count to indicate the node can be
* released when other references are removed.
*/
lpfc_nlp_put(ndlp);
}
return 0;
}
/**
* lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
* @phba: pointer to lpfc hba data structure.
*
* This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
* with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
* list and issues an abort IOCB commond on each outstanding IOCB that
* contains a active Fabric_DID ndlp. Note that this function is to issue
* the abort IOCB command on all the outstanding IOCBs, thus when this
* function returns, it does not guarantee all the IOCBs are actually aborted.
*
* Return code
* 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
**/
int
lpfc_els_abort_flogi(struct lpfc_hba *phba)
{
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *iocb, *next_iocb;
struct lpfc_nodelist *ndlp;
u32 ulp_command;
/* Abort outstanding I/O on NPort <nlp_DID> */
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"0201 Abort outstanding I/O on NPort x%x\n",
Fabric_DID);
pring = lpfc_phba_elsring(phba);
if (unlikely(!pring))
return -EIO;
/*
* Check the txcmplq for an iocb that matches the nport the driver is
* searching for.
*/
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
ulp_command = get_job_cmnd(phba, iocb);
if (ulp_command == CMD_ELS_REQUEST64_CR) {
ndlp = iocb->ndlp;
if (ndlp && ndlp->nlp_DID == Fabric_DID) {
if ((phba->pport->fc_flag & FC_PT2PT) &&
!(phba->pport->fc_flag & FC_PT2PT_PLOGI))
iocb->fabric_cmd_cmpl =
lpfc_ignore_els_cmpl;
lpfc_sli_issue_abort_iotag(phba, pring, iocb,
NULL);
}
}
}
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
spin_unlock_irq(&phba->hbalock);
return 0;
}
/**
* lpfc_initial_flogi - Issue an initial fabric login for a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine issues an initial Fabric Login (FLOGI) for the @vport
* specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
* the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
* put it into the @vport's ndlp list. If an inactive ndlp found on the list,
* it will just be enabled and made active. The lpfc_issue_els_flogi() routine
* is then invoked with the @vport and the ndlp to perform the FLOGI for the
* @vport.
*
* Return code
* 0 - failed to issue initial flogi for @vport
* 1 - successfully issued initial flogi for @vport
**/
int
lpfc_initial_flogi(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
vport->port_state = LPFC_FLOGI;
lpfc_set_disctmo(vport);
/* First look for the Fabric ndlp */
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = lpfc_nlp_init(vport, Fabric_DID);
if (!ndlp)
return 0;
/* Set the node type */
ndlp->nlp_type |= NLP_FABRIC;
/* Put ndlp onto node list */
lpfc_enqueue_node(vport, ndlp);
}
/* Reset the Fabric flag, topology change may have happened */
vport->fc_flag &= ~FC_FABRIC;
if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
/* A node reference should be retained while registered with a
* transport or dev-loss-evt work is pending.
* Otherwise, decrement node reference to trigger release.
*/
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) &&
!(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
lpfc_nlp_put(ndlp);
return 0;
}
return 1;
}
/**
* lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine issues an initial Fabric Discover (FDISC) for the @vport
* specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
* the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
* put it into the @vport's ndlp list. If an inactive ndlp found on the list,
* it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
* is then invoked with the @vport and the ndlp to perform the FDISC for the
* @vport.
*
* Return code
* 0 - failed to issue initial fdisc for @vport
* 1 - successfully issued initial fdisc for @vport
**/
int
lpfc_initial_fdisc(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
/* First look for the Fabric ndlp */
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = lpfc_nlp_init(vport, Fabric_DID);
if (!ndlp)
return 0;
/* NPIV is only supported in Fabrics. */
ndlp->nlp_type |= NLP_FABRIC;
/* Put ndlp onto node list */
lpfc_enqueue_node(vport, ndlp);
}
if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
/* A node reference should be retained while registered with a
* transport or dev-loss-evt work is pending.
* Otherwise, decrement node reference to trigger release.
*/
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) &&
!(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
lpfc_nlp_put(ndlp);
return 0;
}
return 1;
}
/**
* lpfc_more_plogi - Check and issue remaining plogis for a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine checks whether there are more remaining Port Logins
* (PLOGI) to be issued for the @vport. If so, it will invoke the routine
* lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
* to issue ELS PLOGIs up to the configured discover threads with the
* @vport (@vport->cfg_discovery_threads). The function also decrement
* the @vport's num_disc_node by 1 if it is not already 0.
**/
void
lpfc_more_plogi(struct lpfc_vport *vport)
{
if (vport->num_disc_nodes)
vport->num_disc_nodes--;
/* Continue discovery with <num_disc_nodes> PLOGIs to go */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0232 Continue discovery with %d PLOGIs to go "
"Data: x%x x%x x%x\n",
vport->num_disc_nodes, vport->fc_plogi_cnt,
vport->fc_flag, vport->port_state);
/* Check to see if there are more PLOGIs to be sent */
if (vport->fc_flag & FC_NLP_MORE)
/* go thru NPR nodes and issue any remaining ELS PLOGIs */
lpfc_els_disc_plogi(vport);
return;
}
/**
* lpfc_plogi_confirm_nport - Confirm plogi wwpn matches stored ndlp
* @phba: pointer to lpfc hba data structure.
* @prsp: pointer to response IOCB payload.
* @ndlp: pointer to a node-list data structure.
*
* This routine checks and indicates whether the WWPN of an N_Port, retrieved
* from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
* The following cases are considered N_Port confirmed:
* 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
* the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
* it does not have WWPN assigned either. If the WWPN is confirmed, the
* pointer to the @ndlp will be returned. If the WWPN is not confirmed:
* 1) if there is a node on vport list other than the @ndlp with the same
* WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
* on that node to release the RPI associated with the node; 2) if there is
* no node found on vport list with the same WWPN of the N_Port PLOGI logged
* into, a new node shall be allocated (or activated). In either case, the
* parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
* be released and the new_ndlp shall be put on to the vport node list and
* its pointer returned as the confirmed node.
*
* Note that before the @ndlp got "released", the keepDID from not-matching
* or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
* of the @ndlp. This is because the release of @ndlp is actually to put it
* into an inactive state on the vport node list and the vport node list
* management algorithm does not allow two node with a same DID.
*
* Return code
* pointer to the PLOGI N_Port @ndlp
**/
static struct lpfc_nodelist *
lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
struct lpfc_nodelist *ndlp)
{
struct lpfc_vport *vport = ndlp->vport;
struct lpfc_nodelist *new_ndlp;
struct serv_parm *sp;
uint8_t name[sizeof(struct lpfc_name)];
uint32_t keepDID = 0, keep_nlp_flag = 0;
uint32_t keep_new_nlp_flag = 0;
uint16_t keep_nlp_state;
u32 keep_nlp_fc4_type = 0;
struct lpfc_nvme_rport *keep_nrport = NULL;
unsigned long *active_rrqs_xri_bitmap = NULL;
/* Fabric nodes can have the same WWPN so we don't bother searching
* by WWPN. Just return the ndlp that was given to us.
*/
if (ndlp->nlp_type & NLP_FABRIC)
return ndlp;
sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
memset(name, 0, sizeof(struct lpfc_name));
/* Now we find out if the NPort we are logging into, matches the WWPN
* we have for that ndlp. If not, we have some work to do.
*/
new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
/* return immediately if the WWPN matches ndlp */
if (!new_ndlp || (new_ndlp == ndlp))
return ndlp;
/*
* Unregister from backend if not done yet. Could have been skipped
* due to ADISC
*/
lpfc_nlp_unreg_node(vport, new_ndlp);
if (phba->sli_rev == LPFC_SLI_REV4) {
active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
GFP_KERNEL);
if (active_rrqs_xri_bitmap)
memset(active_rrqs_xri_bitmap, 0,
phba->cfg_rrq_xri_bitmap_sz);
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
"3178 PLOGI confirm: ndlp x%x x%x x%x: "
"new_ndlp x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_fc4_type,
(new_ndlp ? new_ndlp->nlp_DID : 0),
(new_ndlp ? new_ndlp->nlp_flag : 0),
(new_ndlp ? new_ndlp->nlp_fc4_type : 0));
keepDID = new_ndlp->nlp_DID;
if (phba->sli_rev == LPFC_SLI_REV4 && active_rrqs_xri_bitmap)
memcpy(active_rrqs_xri_bitmap, new_ndlp->active_rrqs_xri_bitmap,
phba->cfg_rrq_xri_bitmap_sz);
/* At this point in this routine, we know new_ndlp will be
* returned. however, any previous GID_FTs that were done
* would have updated nlp_fc4_type in ndlp, so we must ensure
* new_ndlp has the right value.
*/
if (vport->fc_flag & FC_FABRIC) {
keep_nlp_fc4_type = new_ndlp->nlp_fc4_type;
new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type;
}
lpfc_unreg_rpi(vport, new_ndlp);
new_ndlp->nlp_DID = ndlp->nlp_DID;
new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
if (phba->sli_rev == LPFC_SLI_REV4)
memcpy(new_ndlp->active_rrqs_xri_bitmap,
ndlp->active_rrqs_xri_bitmap,
phba->cfg_rrq_xri_bitmap_sz);
/* Lock both ndlps */
spin_lock_irq(&ndlp->lock);
spin_lock_irq(&new_ndlp->lock);
keep_new_nlp_flag = new_ndlp->nlp_flag;
keep_nlp_flag = ndlp->nlp_flag;
new_ndlp->nlp_flag = ndlp->nlp_flag;
/* if new_ndlp had NLP_UNREG_INP set, keep it */
if (keep_new_nlp_flag & NLP_UNREG_INP)
new_ndlp->nlp_flag |= NLP_UNREG_INP;
else
new_ndlp->nlp_flag &= ~NLP_UNREG_INP;
/* if new_ndlp had NLP_RPI_REGISTERED set, keep it */
if (keep_new_nlp_flag & NLP_RPI_REGISTERED)
new_ndlp->nlp_flag |= NLP_RPI_REGISTERED;
else
new_ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
/*
* Retain the DROPPED flag. This will take care of the init
* refcount when affecting the state change
*/
if (keep_new_nlp_flag & NLP_DROPPED)
new_ndlp->nlp_flag |= NLP_DROPPED;
else
new_ndlp->nlp_flag &= ~NLP_DROPPED;
ndlp->nlp_flag = keep_new_nlp_flag;
/* if ndlp had NLP_UNREG_INP set, keep it */
if (keep_nlp_flag & NLP_UNREG_INP)
ndlp->nlp_flag |= NLP_UNREG_INP;
else
ndlp->nlp_flag &= ~NLP_UNREG_INP;
/* if ndlp had NLP_RPI_REGISTERED set, keep it */
if (keep_nlp_flag & NLP_RPI_REGISTERED)
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
else
ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
/*
* Retain the DROPPED flag. This will take care of the init
* refcount when affecting the state change
*/
if (keep_nlp_flag & NLP_DROPPED)
ndlp->nlp_flag |= NLP_DROPPED;
else
ndlp->nlp_flag &= ~NLP_DROPPED;
spin_unlock_irq(&new_ndlp->lock);
spin_unlock_irq(&ndlp->lock);
/* Set nlp_states accordingly */
keep_nlp_state = new_ndlp->nlp_state;
lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
/* interchange the nvme remoteport structs */
keep_nrport = new_ndlp->nrport;
new_ndlp->nrport = ndlp->nrport;
/* Move this back to NPR state */
if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
/* The ndlp doesn't have a portname yet, but does have an
* NPort ID. The new_ndlp portname matches the Rport's
* portname. Reinstantiate the new_ndlp and reset the ndlp.
*/
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3179 PLOGI confirm NEW: %x %x\n",
new_ndlp->nlp_DID, keepDID);
/* Two ndlps cannot have the same did on the nodelist.
* The KeepDID and keep_nlp_fc4_type need to be swapped
* because ndlp is inflight with no WWPN.
*/
ndlp->nlp_DID = keepDID;
ndlp->nlp_fc4_type = keep_nlp_fc4_type;
lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
if (phba->sli_rev == LPFC_SLI_REV4 &&
active_rrqs_xri_bitmap)
memcpy(ndlp->active_rrqs_xri_bitmap,
active_rrqs_xri_bitmap,
phba->cfg_rrq_xri_bitmap_sz);
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3180 PLOGI confirm SWAP: %x %x\n",
new_ndlp->nlp_DID, keepDID);
lpfc_unreg_rpi(vport, ndlp);
/* The ndlp and new_ndlp both have WWPNs but are swapping
* NPort Ids and attributes.
*/
ndlp->nlp_DID = keepDID;
ndlp->nlp_fc4_type = keep_nlp_fc4_type;
if (phba->sli_rev == LPFC_SLI_REV4 &&
active_rrqs_xri_bitmap)
memcpy(ndlp->active_rrqs_xri_bitmap,
active_rrqs_xri_bitmap,
phba->cfg_rrq_xri_bitmap_sz);
/* Since we are switching over to the new_ndlp,
* reset the old ndlp state
*/
if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
(ndlp->nlp_state == NLP_STE_MAPPED_NODE))
keep_nlp_state = NLP_STE_NPR_NODE;
lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
ndlp->nrport = keep_nrport;
}
/*
* If ndlp is not associated with any rport we can drop it here else
* let dev_loss_tmo_callbk trigger DEVICE_RM event
*/
if (!ndlp->rport && (ndlp->nlp_state == NLP_STE_NPR_NODE))
lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
if (phba->sli_rev == LPFC_SLI_REV4 &&
active_rrqs_xri_bitmap)
mempool_free(active_rrqs_xri_bitmap,
phba->active_rrq_pool);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
"3173 PLOGI confirm exit: new_ndlp x%x x%x x%x\n",
new_ndlp->nlp_DID, new_ndlp->nlp_flag,
new_ndlp->nlp_fc4_type);
return new_ndlp;
}
/**
* lpfc_end_rscn - Check and handle more rscn for a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine checks whether more Registration State Change
* Notifications (RSCNs) came in while the discovery state machine was in
* the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
* invoked to handle the additional RSCNs for the @vport. Otherwise, the
* FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
* handling the RSCNs.
**/
void
lpfc_end_rscn(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (vport->fc_flag & FC_RSCN_MODE) {
/*
* Check to see if more RSCNs came in while we were
* processing this one.
*/
if (vport->fc_rscn_id_cnt ||
(vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
lpfc_els_handle_rscn(vport);
else {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
}
}
}
/**
* lpfc_cmpl_els_rrq - Completion handled for els RRQs.
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine will call the clear rrq function to free the rrq and
* clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
* exist then the clear_rrq is still called because the rrq needs to
* be freed.
**/
static void
lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
struct lpfc_node_rrq *rrq;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
/* we pass cmdiocb to state machine which needs rspiocb as well */
rrq = cmdiocb->context_un.rrq;
cmdiocb->rsp_iocb = rspiocb;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"RRQ cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4,
get_job_els_rsp64_did(phba, cmdiocb));
/* rrq completes to NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2880 RRQ completes to DID x%x "
"Data: x%x x%x x%x x%x x%x\n",
ndlp->nlp_DID, ulp_status, ulp_word4,
get_wqe_tmo(cmdiocb), rrq->xritag, rrq->rxid);
if (ulp_status) {
/* Check for retry */
/* RRQ failed Don't print the vport to vport rjts */
if (ulp_status != IOSTAT_LS_RJT ||
(((ulp_word4) >> 16 != LSRJT_INVALID_CMD) &&
((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) ||
(phba)->pport->cfg_log_verbose & LOG_ELS)
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2881 RRQ failure DID:%06X Status:"
"x%x/x%x\n",
ndlp->nlp_DID, ulp_status,
ulp_word4);
}
lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
return;
}
/**
* lpfc_cmpl_els_plogi - Completion callback function for plogi
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion callback function for issuing the Port
* Login (PLOGI) command. For PLOGI completion, there must be an active
* ndlp on the vport node list that matches the remote node ID from the
* PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
* ignored and command IOCB released. The PLOGI response IOCB status is
* checked for error conditions. If there is error status reported, PLOGI
* retry shall be attempted by invoking the lpfc_els_retry() routine.
* Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
* the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
* (DSM) is set for this PLOGI completion. Finally, it checks whether
* there are additional N_Port nodes with the vport that need to perform
* PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
* PLOGIs.
**/
static void
lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp;
struct lpfc_nodelist *ndlp, *free_ndlp;
struct lpfc_dmabuf *prsp;
int disc;
struct serv_parm *sp = NULL;
u32 ulp_status, ulp_word4, did, iotag;
bool release_node = false;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->rsp_iocb = rspiocb;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
did = get_job_els_rsp64_did(phba, cmdiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
iotag = get_wqe_reqtag(cmdiocb);
} else {
irsp = &rspiocb->iocb;
iotag = irsp->ulpIoTag;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"PLOGI cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, did);
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0136 PLOGI completes to NPort x%x "
"with no ndlp. Data: x%x x%x x%x\n",
did, ulp_status, ulp_word4, iotag);
goto out_freeiocb;
}
/* Since ndlp can be freed in the disc state machine, note if this node
* is being used during discovery.
*/
spin_lock_irq(&ndlp->lock);
disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
/* PLOGI completes to NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0102 PLOGI completes to NPort x%06x "
"Data: x%x x%x x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_fc4_type,
ulp_status, ulp_word4,
disc, vport->num_disc_nodes);
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport)) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
goto out;
}
if (ulp_status) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* ELS command is being retried */
if (disc) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
}
goto out;
}
/* PLOGI failed Don't print the vport to vport rjts */
if (ulp_status != IOSTAT_LS_RJT ||
(((ulp_word4) >> 16 != LSRJT_INVALID_CMD) &&
((ulp_word4) >> 16 != LSRJT_UNABLE_TPC)) ||
(phba)->pport->cfg_log_verbose & LOG_ELS)
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2753 PLOGI failure DID:%06X "
"Status:x%x/x%x\n",
ndlp->nlp_DID, ulp_status,
ulp_word4);
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4))
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PLOGI);
/* If a PLOGI collision occurred, the node needs to continue
* with the reglogin process.
*/
spin_lock_irq(&ndlp->lock);
if ((ndlp->nlp_flag & (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI)) &&
ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) {
spin_unlock_irq(&ndlp->lock);
goto out;
}
/* No PLOGI collision and the node is not registered with the
* scsi or nvme transport. It is no longer an active node. Just
* start the device remove process.
*/
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
release_node = true;
}
spin_unlock_irq(&ndlp->lock);
if (release_node)
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_DEVICE_RM);
} else {
/* Good status, call state machine */
prsp = list_entry(cmdiocb->cmd_dmabuf->list.next,
struct lpfc_dmabuf, list);
ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
sp = (struct serv_parm *)((u8 *)prsp->virt +
sizeof(u32));
ndlp->vmid_support = 0;
if ((phba->cfg_vmid_app_header && sp->cmn.app_hdr_support) ||
(phba->cfg_vmid_priority_tagging &&
sp->cmn.priority_tagging)) {
lpfc_printf_log(phba, KERN_DEBUG, LOG_ELS,
"4018 app_hdr_support %d tagging %d DID x%x\n",
sp->cmn.app_hdr_support,
sp->cmn.priority_tagging,
ndlp->nlp_DID);
/* if the dest port supports VMID, mark it in ndlp */
ndlp->vmid_support = 1;
}
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PLOGI);
}
if (disc && vport->num_disc_nodes) {
/* Check to see if there are more PLOGIs to be sent */
lpfc_more_plogi(vport);
if (vport->num_disc_nodes == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
lpfc_end_rscn(vport);
}
}
out:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
"PLOGI Cmpl PUT: did:x%x refcnt %d",
ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
out_freeiocb:
/* Release the reference on the original I/O request. */
free_ndlp = cmdiocb->ndlp;
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(free_ndlp);
return;
}
/**
* lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
* @vport: pointer to a host virtual N_Port data structure.
* @did: destination port identifier.
* @retry: number of retries to the command IOCB.
*
* This routine issues a Port Login (PLOGI) command to a remote N_Port
* (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
* the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
* This routine constructs the proper fields of the PLOGI IOCB and invokes
* the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
*
* Note that the ndlp reference count will be incremented by 1 for holding
* the ndlp and the reference to ndlp will be stored into the ndlp field
* of the IOCB for the completion callback function to the PLOGI ELS command.
*
* Return code
* 0 - Successfully issued a plogi for @vport
* 1 - failed to issue a plogi for @vport
**/
int
lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct serv_parm *sp;
struct lpfc_nodelist *ndlp;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
int ret;
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp)
return 1;
/* Defer the processing of the issue PLOGI until after the
* outstanding UNREG_RPI mbox command completes, unless we
* are going offline. This logic does not apply for Fabric DIDs
*/
if ((ndlp->nlp_flag & (NLP_IGNR_REG_CMPL | NLP_UNREG_INP)) &&
((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) &&
!(vport->fc_flag & FC_OFFLINE_MODE)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"4110 Issue PLOGI x%x deferred "
"on NPort x%x rpi x%x flg x%x Data:"
" x%px\n",
ndlp->nlp_defer_did, ndlp->nlp_DID,
ndlp->nlp_rpi, ndlp->nlp_flag, ndlp);
/* We can only defer 1st PLOGI */
if (ndlp->nlp_defer_did == NLP_EVT_NOTHING_PENDING)
ndlp->nlp_defer_did = did;
return 0;
}
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
ELS_CMD_PLOGI);
if (!elsiocb)
return 1;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
/* For PLOGI request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
sp = (struct serv_parm *) pcmd;
/*
* If we are a N-port connected to a Fabric, fix-up paramm's so logins
* to device on remote loops work.
*/
if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
sp->cmn.altBbCredit = 1;
if (sp->cmn.fcphLow < FC_PH_4_3)
sp->cmn.fcphLow = FC_PH_4_3;
if (sp->cmn.fcphHigh < FC_PH3)
sp->cmn.fcphHigh = FC_PH3;
sp->cmn.valid_vendor_ver_level = 0;
memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
sp->cmn.bbRcvSizeMsb &= 0xF;
/* Check if the destination port supports VMID */
ndlp->vmid_support = 0;
if (vport->vmid_priority_tagging)
sp->cmn.priority_tagging = 1;
else if (phba->cfg_vmid_app_header &&
bf_get(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags))
sp->cmn.app_hdr_support = 1;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue PLOGI: did:x%x",
did, 0, 0);
/* If our firmware supports this feature, convey that
* information to the target using the vendor specific field.
*/
if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
sp->cmn.valid_vendor_ver_level = 1;
sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
sp->un.vv.flags = cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
}
phba->fc_stat.elsXmitPLOGI++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_plogi;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue PLOGI: did:x%x refcnt %d",
did, kref_read(&ndlp->kref), 0);
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (ret) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_cmpl_els_prli - Completion callback function for prli
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion callback function for a Process Login
* (PRLI) ELS command. The PRLI response IOCB status is checked for error
* status. If there is error status reported, PRLI retry shall be attempted
* by invoking the lpfc_els_retry() routine. Otherwise, the state
* NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
* ndlp to mark the PRLI completion.
**/
static void
lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_nodelist *ndlp;
char *mode;
u32 loglevel;
u32 ulp_status;
u32 ulp_word4;
bool release_node = false;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->rsp_iocb = rspiocb;
ndlp = cmdiocb->ndlp;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_PRLI_SND;
/* Driver supports multiple FC4 types. Counters matter. */
vport->fc_prli_sent--;
ndlp->fc4_prli_sent--;
spin_unlock_irq(&ndlp->lock);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"PRLI cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4,
ndlp->nlp_DID);
/* PRLI completes to NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0103 PRLI completes to NPort x%06x "
"Data: x%x x%x x%x x%x\n",
ndlp->nlp_DID, ulp_status, ulp_word4,
vport->num_disc_nodes, ndlp->fc4_prli_sent);
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport))
goto out;
if (ulp_status) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* ELS command is being retried */
goto out;
}
/* If we don't send GFT_ID to Fabric, a PRLI error
* could be expected.
*/
if ((vport->fc_flag & FC_FABRIC) ||
(vport->cfg_enable_fc4_type != LPFC_ENABLE_BOTH)) {
mode = KERN_ERR;
loglevel = LOG_TRACE_EVENT;
} else {
mode = KERN_INFO;
loglevel = LOG_ELS;
}
/* PRLI failed */
lpfc_printf_vlog(vport, mode, loglevel,
"2754 PRLI failure DID:%06X Status:x%x/x%x, "
"data: x%x x%x x%x\n",
ndlp->nlp_DID, ulp_status,
ulp_word4, ndlp->nlp_state,
ndlp->fc4_prli_sent, ndlp->nlp_flag);
/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
if (!lpfc_error_lost_link(vport, ulp_status, ulp_word4))
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PRLI);
/* The following condition catches an inflight transition
* mismatch typically caused by an RSCN. Skip any
* processing to allow recovery.
*/
if ((ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&
ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE) ||
(ndlp->nlp_state == NLP_STE_NPR_NODE &&
ndlp->nlp_flag & NLP_DELAY_TMO)) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
"2784 PRLI cmpl: Allow Node recovery "
"DID x%06x nstate x%x nflag x%x\n",
ndlp->nlp_DID, ndlp->nlp_state,
ndlp->nlp_flag);
goto out;
}
/*
* For P2P topology, retain the node so that PLOGI can be
* attempted on it again.
*/
if (vport->fc_flag & FC_PT2PT)
goto out;
/* As long as this node is not registered with the SCSI
* or NVMe transport and no other PRLIs are outstanding,
* it is no longer an active node. Otherwise devloss
* handles the final cleanup.
*/
spin_lock_irq(&ndlp->lock);
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD)) &&
!ndlp->fc4_prli_sent) {
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
release_node = true;
}
spin_unlock_irq(&ndlp->lock);
if (release_node)
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_DEVICE_RM);
} else {
/* Good status, call state machine. However, if another
* PRLI is outstanding, don't call the state machine
* because final disposition to Mapped or Unmapped is
* completed there.
*/
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PRLI);
}
out:
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
return;
}
/**
* lpfc_issue_els_prli - Issue a prli iocb command for a vport
* @vport: pointer to a host virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
* @retry: number of retries to the command IOCB.
*
* This routine issues a Process Login (PRLI) ELS command for the
* @vport. The PRLI service parameters are set up in the payload of the
* PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
* is put to the IOCB completion callback func field before invoking the
* routine lpfc_sli_issue_iocb() to send out PRLI command.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the PRLI ELS command.
*
* Return code
* 0 - successfully issued prli iocb command for @vport
* 1 - failed to issue prli iocb command for @vport
**/
int
lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
int rc = 0;
struct lpfc_hba *phba = vport->phba;
PRLI *npr;
struct lpfc_nvme_prli *npr_nvme;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
u32 local_nlp_type, elscmd;
/*
* If we are in RSCN mode, the FC4 types supported from a
* previous GFT_ID command may not be accurate. So, if we
* are a NVME Initiator, always look for the possibility of
* the remote NPort beng a NVME Target.
*/
if (phba->sli_rev == LPFC_SLI_REV4 &&
vport->fc_flag & FC_RSCN_MODE &&
vport->nvmei_support)
ndlp->nlp_fc4_type |= NLP_FC4_NVME;
local_nlp_type = ndlp->nlp_fc4_type;
/* This routine will issue 1 or 2 PRLIs, so zero all the ndlp
* fields here before any of them can complete.
*/
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
ndlp->nlp_flag &= ~(NLP_FIRSTBURST | NLP_NPR_2B_DISC);
ndlp->nvme_fb_size = 0;
send_next_prli:
if (local_nlp_type & NLP_FC4_FCP) {
/* Payload is 4 + 16 = 20 x14 bytes. */
cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
elscmd = ELS_CMD_PRLI;
} else if (local_nlp_type & NLP_FC4_NVME) {
/* Payload is 4 + 20 = 24 x18 bytes. */
cmdsize = (sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli));
elscmd = ELS_CMD_NVMEPRLI;
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"3083 Unknown FC_TYPE x%x ndlp x%06x\n",
ndlp->nlp_fc4_type, ndlp->nlp_DID);
return 1;
}
/* SLI3 ports don't support NVME. If this rport is a strict NVME
* FC4 type, implicitly LOGO.
*/
if (phba->sli_rev == LPFC_SLI_REV3 &&
ndlp->nlp_fc4_type == NLP_FC4_NVME) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"3088 Rport fc4 type 0x%x not supported by SLI3 adapter\n",
ndlp->nlp_type);
lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
return 1;
}
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, elscmd);
if (!elsiocb)
return 1;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
/* For PRLI request, remainder of payload is service parameters */
memset(pcmd, 0, cmdsize);
if (local_nlp_type & NLP_FC4_FCP) {
/* Remainder of payload is FCP PRLI parameter page.
* Note: this data structure is defined as
* BE/LE in the structure definition so no
* byte swap call is made.
*/
*((uint32_t *)(pcmd)) = ELS_CMD_PRLI;
pcmd += sizeof(uint32_t);
npr = (PRLI *)pcmd;
/*
* If our firmware version is 3.20 or later,
* set the following bits for FC-TAPE support.
*/
if (phba->vpd.rev.feaLevelHigh >= 0x02) {
npr->ConfmComplAllowed = 1;
npr->Retry = 1;
npr->TaskRetryIdReq = 1;
}
npr->estabImagePair = 1;
npr->readXferRdyDis = 1;
if (vport->cfg_first_burst_size)
npr->writeXferRdyDis = 1;
/* For FCP support */
npr->prliType = PRLI_FCP_TYPE;
npr->initiatorFunc = 1;
elsiocb->cmd_flag |= LPFC_PRLI_FCP_REQ;
/* Remove FCP type - processed. */
local_nlp_type &= ~NLP_FC4_FCP;
} else if (local_nlp_type & NLP_FC4_NVME) {
/* Remainder of payload is NVME PRLI parameter page.
* This data structure is the newer definition that
* uses bf macros so a byte swap is required.
*/
*((uint32_t *)(pcmd)) = ELS_CMD_NVMEPRLI;
pcmd += sizeof(uint32_t);
npr_nvme = (struct lpfc_nvme_prli *)pcmd;
bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
if (phba->nsler) {
bf_set(prli_nsler, npr_nvme, 1);
bf_set(prli_conf, npr_nvme, 1);
}
/* Only initiators request first burst. */
if ((phba->cfg_nvme_enable_fb) &&
!phba->nvmet_support)
bf_set(prli_fba, npr_nvme, 1);
if (phba->nvmet_support) {
bf_set(prli_tgt, npr_nvme, 1);
bf_set(prli_disc, npr_nvme, 1);
} else {
bf_set(prli_init, npr_nvme, 1);
bf_set(prli_conf, npr_nvme, 1);
}
npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
elsiocb->cmd_flag |= LPFC_PRLI_NVME_REQ;
/* Remove NVME type - processed. */
local_nlp_type &= ~NLP_FC4_NVME;
}
phba->fc_stat.elsXmitPRLI++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_prli;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue PRLI: did:x%x refcnt %d",
ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
/* The vport counters are used for lpfc_scan_finished, but
* the ndlp is used to track outstanding PRLIs for different
* FC4 types.
*/
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_PRLI_SND;
vport->fc_prli_sent++;
ndlp->fc4_prli_sent++;
spin_unlock_irq(&ndlp->lock);
/* The driver supports 2 FC4 types. Make sure
* a PRLI is issued for all types before exiting.
*/
if (phba->sli_rev == LPFC_SLI_REV4 &&
local_nlp_type & (NLP_FC4_FCP | NLP_FC4_NVME))
goto send_next_prli;
else
return 0;
}
/**
* lpfc_rscn_disc - Perform rscn discovery for a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine performs Registration State Change Notification (RSCN)
* discovery for a @vport. If the @vport's node port recovery count is not
* zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
* the nodes that need recovery. If none of the PLOGI were needed through
* the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
* invoked to check and handle possible more RSCN came in during the period
* of processing the current ones.
**/
static void
lpfc_rscn_disc(struct lpfc_vport *vport)
{
lpfc_can_disctmo(vport);
/* RSCN discovery */
/* go thru NPR nodes and issue ELS PLOGIs */
if (vport->fc_npr_cnt)
if (lpfc_els_disc_plogi(vport))
return;
lpfc_end_rscn(vport);
}
/**
* lpfc_adisc_done - Complete the adisc phase of discovery
* @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
*
* This function is called when the final ADISC is completed during discovery.
* This function handles clearing link attention or issuing reg_vpi depending
* on whether npiv is enabled. This function also kicks off the PLOGI phase of
* discovery.
* This function is called with no locks held.
**/
static void
lpfc_adisc_done(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
/*
* For NPIV, cmpl_reg_vpi will set port_state to READY,
* and continue discovery.
*/
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
!(vport->fc_flag & FC_RSCN_MODE) &&
(phba->sli_rev < LPFC_SLI_REV4)) {
/*
* If link is down, clear_la and reg_vpi will be done after
* flogi following a link up event
*/
if (!lpfc_is_link_up(phba))
return;
/* The ADISCs are complete. Doesn't matter if they
* succeeded or failed because the ADISC completion
* routine guarantees to call the state machine and
* the RPI is either unregistered (failed ADISC response)
* or the RPI is still valid and the node is marked
* mapped for a target. The exchanges should be in the
* correct state. This code is specific to SLI3.
*/
lpfc_issue_clear_la(phba, vport);
lpfc_issue_reg_vpi(phba, vport);
return;
}
/*
* For SLI2, we need to set port_state to READY
* and continue discovery.
*/
if (vport->port_state < LPFC_VPORT_READY) {
/* If we get here, there is nothing to ADISC */
lpfc_issue_clear_la(phba, vport);
if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
vport->num_disc_nodes = 0;
/* go thru NPR list, issue ELS PLOGIs */
if (vport->fc_npr_cnt)
lpfc_els_disc_plogi(vport);
if (!vport->num_disc_nodes) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
lpfc_end_rscn(vport);
}
}
vport->port_state = LPFC_VPORT_READY;
} else
lpfc_rscn_disc(vport);
}
/**
* lpfc_more_adisc - Issue more adisc as needed
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine determines whether there are more ndlps on a @vport
* node list need to have Address Discover (ADISC) issued. If so, it will
* invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
* remaining nodes which need to have ADISC sent.
**/
void
lpfc_more_adisc(struct lpfc_vport *vport)
{
if (vport->num_disc_nodes)
vport->num_disc_nodes--;
/* Continue discovery with <num_disc_nodes> ADISCs to go */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0210 Continue discovery with %d ADISCs to go "
"Data: x%x x%x x%x\n",
vport->num_disc_nodes, vport->fc_adisc_cnt,
vport->fc_flag, vport->port_state);
/* Check to see if there are more ADISCs to be sent */
if (vport->fc_flag & FC_NLP_MORE) {
lpfc_set_disctmo(vport);
/* go thru NPR nodes and issue any remaining ELS ADISCs */
lpfc_els_disc_adisc(vport);
}
if (!vport->num_disc_nodes)
lpfc_adisc_done(vport);
return;
}
/**
* lpfc_cmpl_els_adisc - Completion callback function for adisc
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion function for issuing the Address Discover
* (ADISC) command. It first checks to see whether link went down during
* the discovery process. If so, the node will be marked as node port
* recovery for issuing discover IOCB by the link attention handler and
* exit. Otherwise, the response status is checked. If error was reported
* in the response status, the ADISC command shall be retried by invoking
* the lpfc_els_retry() routine. Otherwise, if no error was reported in
* the response status, the state machine is invoked to set transition
* with respect to NLP_EVT_CMPL_ADISC event.
**/
static void
lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
IOCB_t *irsp;
struct lpfc_nodelist *ndlp;
int disc;
u32 ulp_status, ulp_word4, tmo;
bool release_node = false;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->rsp_iocb = rspiocb;
ndlp = cmdiocb->ndlp;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
tmo = get_wqe_tmo(cmdiocb);
} else {
irsp = &rspiocb->iocb;
tmo = irsp->ulpTimeout;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"ADISC cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4,
ndlp->nlp_DID);
/* Since ndlp can be freed in the disc state machine, note if this node
* is being used during discovery.
*/
spin_lock_irq(&ndlp->lock);
disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
spin_unlock_irq(&ndlp->lock);
/* ADISC completes to NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0104 ADISC completes to NPort x%x "
"Data: x%x x%x x%x x%x x%x\n",
ndlp->nlp_DID, ulp_status, ulp_word4,
tmo, disc, vport->num_disc_nodes);
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport)) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
goto out;
}
if (ulp_status) {
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
/* ELS command is being retried */
if (disc) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
lpfc_set_disctmo(vport);
}
goto out;
}
/* ADISC failed */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2755 ADISC failure DID:%06X Status:x%x/x%x\n",
ndlp->nlp_DID, ulp_status,
ulp_word4);
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_ADISC);
/* As long as this node is not registered with the SCSI or NVMe
* transport, it is no longer an active node. Otherwise
* devloss handles the final cleanup.
*/
spin_lock_irq(&ndlp->lock);
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
if (!(ndlp->nlp_flag & NLP_IN_DEV_LOSS))
release_node = true;
}
spin_unlock_irq(&ndlp->lock);
if (release_node)
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_DEVICE_RM);
} else
/* Good status, call state machine */
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_ADISC);
/* Check to see if there are more ADISCs to be sent */
if (disc && vport->num_disc_nodes)
lpfc_more_adisc(vport);
out:
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
return;
}
/**
* lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
* @vport: pointer to a virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
* @retry: number of retries to the command IOCB.
*
* This routine issues an Address Discover (ADISC) for an @ndlp on a
* @vport. It prepares the payload of the ADISC ELS command, updates the
* and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
* to issue the ADISC ELS command.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the ADISC ELS command.
*
* Return code
* 0 - successfully issued adisc
* 1 - failed to issue adisc
**/
int
lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
int rc = 0;
struct lpfc_hba *phba = vport->phba;
ADISC *ap;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ADISC);
if (!elsiocb)
return 1;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
/* For ADISC request, remainder of payload is service parameters */
*((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
pcmd += sizeof(uint32_t);
/* Fill in ADISC payload */
ap = (ADISC *) pcmd;
ap->hardAL_PA = phba->fc_pref_ALPA;
memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
ap->DID = be32_to_cpu(vport->fc_myDID);
phba->fc_stat.elsXmitADISC++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_adisc;
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_ADISC_SND;
spin_unlock_irq(&ndlp->lock);
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
goto err;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue ADISC: did:x%x refcnt %d",
ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
goto err;
}
return 0;
err:
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_ADISC_SND;
spin_unlock_irq(&ndlp->lock);
return 1;
}
/**
* lpfc_cmpl_els_logo - Completion callback function for logo
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion function for issuing the ELS Logout (LOGO)
* command. If no error status was reported from the LOGO response, the
* state machine of the associated ndlp shall be invoked for transition with
* respect to NLP_EVT_CMPL_LOGO event.
**/
static void
lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
struct lpfc_vport *vport = ndlp->vport;
IOCB_t *irsp;
unsigned long flags;
uint32_t skip_recovery = 0;
int wake_up_waiter = 0;
u32 ulp_status;
u32 ulp_word4;
u32 tmo;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->rsp_iocb = rspiocb;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
tmo = get_wqe_tmo(cmdiocb);
} else {
irsp = &rspiocb->iocb;
tmo = irsp->ulpTimeout;
}
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_LOGO_SND;
if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) {
wake_up_waiter = 1;
ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO;
}
spin_unlock_irq(&ndlp->lock);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"LOGO cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4,
ndlp->nlp_DID);
/* LOGO completes to NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0105 LOGO completes to NPort x%x "
"refcnt %d nflags x%x Data: x%x x%x x%x x%x\n",
ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag,
ulp_status, ulp_word4,
tmo, vport->num_disc_nodes);
if (lpfc_els_chk_latt(vport)) {
skip_recovery = 1;
goto out;
}
/* The LOGO will not be retried on failure. A LOGO was
* issued to the remote rport and a ACC or RJT or no Answer are
* all acceptable. Note the failure and move forward with
* discovery. The PLOGI will retry.
*/
if (ulp_status) {
/* LOGO failed */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2756 LOGO failure, No Retry DID:%06X "
"Status:x%x/x%x\n",
ndlp->nlp_DID, ulp_status,
ulp_word4);
if (lpfc_error_lost_link(vport, ulp_status, ulp_word4))
skip_recovery = 1;
}
/* Call state machine. This will unregister the rpi if needed. */
lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
if (skip_recovery)
goto out;
/* The driver sets this flag for an NPIV instance that doesn't want to
* log into the remote port.
*/
if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
spin_lock_irq(&ndlp->lock);
if (phba->sli_rev == LPFC_SLI_REV4)
ndlp->nlp_flag |= NLP_RELEASE_RPI;
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_DEVICE_RM);
goto out_rsrc_free;
}
out:
/* At this point, the LOGO processing is complete. NOTE: For a
* pt2pt topology, we are assuming the NPortID will only change
* on link up processing. For a LOGO / PLOGI initiated by the
* Initiator, we are assuming the NPortID is not going to change.
*/
if (wake_up_waiter && ndlp->logo_waitq)
wake_up(ndlp->logo_waitq);
/*
* If the node is a target, the handling attempts to recover the port.
* For any other port type, the rpi is unregistered as an implicit
* LOGO.
*/
if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET) &&
skip_recovery == 0) {
lpfc_cancel_retry_delay_tmo(vport, ndlp);
spin_lock_irqsave(&ndlp->lock, flags);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irqrestore(&ndlp->lock, flags);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3187 LOGO completes to NPort x%x: Start "
"Recovery Data: x%x x%x x%x x%x\n",
ndlp->nlp_DID, ulp_status,
ulp_word4, tmo,
vport->num_disc_nodes);
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
lpfc_disc_start(vport);
return;
}
/* Cleanup path for failed REG_RPI handling. If REG_RPI fails, the
* driver sends a LOGO to the rport to cleanup. For fabric and
* initiator ports cleanup the node as long as it the node is not
* register with the transport.
*/
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_DEVICE_RM);
}
out_rsrc_free:
/* Driver is done with the I/O. */
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
/**
* lpfc_issue_els_logo - Issue a logo to an node on a vport
* @vport: pointer to a virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
* @retry: number of retries to the command IOCB.
*
* This routine constructs and issues an ELS Logout (LOGO) iocb command
* to a remote node, referred by an @ndlp on a @vport. It constructs the
* payload of the IOCB, properly sets up the @ndlp state, and invokes the
* lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the LOGO ELS command.
*
* Callers of this routine are expected to unregister the RPI first
*
* Return code
* 0 - successfully issued logo
* 1 - failed to issue logo
**/
int
lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
spin_lock_irq(&ndlp->lock);
if (ndlp->nlp_flag & NLP_LOGO_SND) {
spin_unlock_irq(&ndlp->lock);
return 0;
}
spin_unlock_irq(&ndlp->lock);
cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_LOGO);
if (!elsiocb)
return 1;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
pcmd += sizeof(uint32_t);
/* Fill in LOGO payload */
*((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
phba->fc_stat.elsXmitLOGO++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_logo;
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_LOGO_SND;
ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
spin_unlock_irq(&ndlp->lock);
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
goto err;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue LOGO: did:x%x refcnt %d",
ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
goto err;
}
spin_lock_irq(&ndlp->lock);
ndlp->nlp_prev_state = ndlp->nlp_state;
spin_unlock_irq(&ndlp->lock);
lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
return 0;
err:
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_LOGO_SND;
spin_unlock_irq(&ndlp->lock);
return 1;
}
/**
* lpfc_cmpl_els_cmd - Completion callback function for generic els command
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is a generic completion callback function for ELS commands.
* Specifically, it is the callback function which does not need to perform
* any command specific operations. It is currently used by the ELS command
* issuing routines for RSCN, lpfc_issue_els_rscn, and the ELS Fibre Channel
* Address Resolution Protocol Response (FARPR) routine, lpfc_issue_els_farpr().
* Other than certain debug loggings, this callback function simply invokes the
* lpfc_els_chk_latt() routine to check whether link went down during the
* discovery process.
**/
static void
lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_nodelist *free_ndlp;
IOCB_t *irsp;
u32 ulp_status, ulp_word4, tmo, did, iotag;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
did = get_job_els_rsp64_did(phba, cmdiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
tmo = get_wqe_tmo(cmdiocb);
iotag = get_wqe_reqtag(cmdiocb);
} else {
irsp = &rspiocb->iocb;
tmo = irsp->ulpTimeout;
iotag = irsp->ulpIoTag;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"ELS cmd cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, did);
/* ELS cmd tag <ulpIoTag> completes */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
iotag, ulp_status, ulp_word4, tmo);
/* Check to see if link went down during discovery */
lpfc_els_chk_latt(vport);
free_ndlp = cmdiocb->ndlp;
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(free_ndlp);
}
/**
* lpfc_reg_fab_ctrl_node - RPI register the fabric controller node.
* @vport: pointer to lpfc_vport data structure.
* @fc_ndlp: pointer to the fabric controller (0xfffffd) node.
*
* This routine registers the rpi assigned to the fabric controller
* NPort_ID (0xfffffd) with the port and moves the node to UNMAPPED
* state triggering a registration with the SCSI transport.
*
* This routine is single out because the fabric controller node
* does not receive a PLOGI. This routine is consumed by the
* SCR and RDF ELS commands. Callers are expected to qualify
* with SLI4 first.
**/
static int
lpfc_reg_fab_ctrl_node(struct lpfc_vport *vport, struct lpfc_nodelist *fc_ndlp)
{
int rc = 0;
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ns_ndlp;
LPFC_MBOXQ_t *mbox;
if (fc_ndlp->nlp_flag & NLP_RPI_REGISTERED)
return rc;
ns_ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (!ns_ndlp)
return -ENODEV;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0935 %s: Reg FC RPI x%x on FC DID x%x NSSte: x%x\n",
__func__, fc_ndlp->nlp_rpi, fc_ndlp->nlp_DID,
ns_ndlp->nlp_state);
if (ns_ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
return -ENODEV;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
"0936 %s: no memory for reg_login "
"Data: x%x x%x x%x x%x\n", __func__,
fc_ndlp->nlp_DID, fc_ndlp->nlp_state,
fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi);
return -ENOMEM;
}
rc = lpfc_reg_rpi(phba, vport->vpi, fc_ndlp->nlp_DID,
(u8 *)&vport->fc_sparam, mbox, fc_ndlp->nlp_rpi);
if (rc) {
rc = -EACCES;
goto out;
}
fc_ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
mbox->mbox_cmpl = lpfc_mbx_cmpl_fc_reg_login;
mbox->ctx_ndlp = lpfc_nlp_get(fc_ndlp);
if (!mbox->ctx_ndlp) {
rc = -ENOMEM;
goto out;
}
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
rc = -ENODEV;
lpfc_nlp_put(fc_ndlp);
goto out;
}
/* Success path. Exit. */
lpfc_nlp_set_state(vport, fc_ndlp,
NLP_STE_REG_LOGIN_ISSUE);
return 0;
out:
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
"0938 %s: failed to format reg_login "
"Data: x%x x%x x%x x%x\n", __func__,
fc_ndlp->nlp_DID, fc_ndlp->nlp_state,
fc_ndlp->nlp_flag, fc_ndlp->nlp_rpi);
return rc;
}
/**
* lpfc_cmpl_els_disc_cmd - Completion callback function for Discovery ELS cmd
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is a generic completion callback function for Discovery ELS cmd.
* Currently used by the ELS command issuing routines for the ELS State Change
* Request (SCR), lpfc_issue_els_scr() and the ELS RDF, lpfc_issue_els_rdf().
* These commands will be retried once only for ELS timeout errors.
**/
static void
lpfc_cmpl_els_disc_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
IOCB_t *irsp;
struct lpfc_els_rdf_rsp *prdf;
struct lpfc_dmabuf *pcmd, *prsp;
u32 *pdata;
u32 cmd;
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
u32 ulp_status, ulp_word4, tmo, did, iotag;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
did = get_job_els_rsp64_did(phba, cmdiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
tmo = get_wqe_tmo(cmdiocb);
iotag = get_wqe_reqtag(cmdiocb);
} else {
irsp = &rspiocb->iocb;
tmo = irsp->ulpTimeout;
iotag = irsp->ulpIoTag;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"ELS cmd cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, did);
/* ELS cmd tag <ulpIoTag> completes */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
"0217 ELS cmd tag x%x completes Data: x%x x%x x%x x%x\n",
iotag, ulp_status, ulp_word4, tmo, cmdiocb->retry);
pcmd = cmdiocb->cmd_dmabuf;
if (!pcmd)
goto out;
pdata = (u32 *)pcmd->virt;
if (!pdata)
goto out;
cmd = *pdata;
/* Only 1 retry for ELS Timeout only */
if (ulp_status == IOSTAT_LOCAL_REJECT &&
((ulp_word4 & IOERR_PARAM_MASK) ==
IOERR_SEQUENCE_TIMEOUT)) {
cmdiocb->retry++;
if (cmdiocb->retry <= 1) {
switch (cmd) {
case ELS_CMD_SCR:
lpfc_issue_els_scr(vport, cmdiocb->retry);
break;
case ELS_CMD_EDC:
lpfc_issue_els_edc(vport, cmdiocb->retry);
break;
case ELS_CMD_RDF:
lpfc_issue_els_rdf(vport, cmdiocb->retry);
break;
}
goto out;
}
phba->fc_stat.elsRetryExceeded++;
}
if (cmd == ELS_CMD_EDC) {
/* must be called before checking uplStatus and returning */
lpfc_cmpl_els_edc(phba, cmdiocb, rspiocb);
return;
}
if (ulp_status) {
/* ELS discovery cmd completes with error */
lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT,
"4203 ELS cmd x%x error: x%x x%X\n", cmd,
ulp_status, ulp_word4);
goto out;
}
/* The RDF response doesn't have any impact on the running driver
* but the notification descriptors are dumped here for support.
*/
if (cmd == ELS_CMD_RDF) {
int i;
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
if (!prsp)
goto out;
prdf = (struct lpfc_els_rdf_rsp *)prsp->virt;
if (!prdf)
goto out;
for (i = 0; i < ELS_RDF_REG_TAG_CNT &&
i < be32_to_cpu(prdf->reg_d1.reg_desc.count); i++)
lpfc_printf_vlog(vport, KERN_INFO,
LOG_ELS | LOG_CGN_MGMT,
"4677 Fabric RDF Notification Grant "
"Data: 0x%08x Reg: %x %x\n",
be32_to_cpu(
prdf->reg_d1.desc_tags[i]),
phba->cgn_reg_signal,
phba->cgn_reg_fpin);
}
out:
/* Check to see if link went down during discovery */
lpfc_els_chk_latt(vport);
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
return;
}
/**
* lpfc_issue_els_scr - Issue a scr to an node on a vport
* @vport: pointer to a host virtual N_Port data structure.
* @retry: retry counter for the command IOCB.
*
* This routine issues a State Change Request (SCR) to a fabric node
* on a @vport. The remote node is Fabric Controller (0xfffffd). It
* first search the @vport node list to find the matching ndlp. If no such
* ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
* IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
* routine is invoked to send the SCR IOCB.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the SCR ELS command.
*
* Return code
* 0 - Successfully issued scr command
* 1 - Failed to issue scr command
**/
int
lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry)
{
int rc = 0;
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
struct lpfc_nodelist *ndlp;
cmdsize = (sizeof(uint32_t) + sizeof(SCR));
ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID);
if (!ndlp) {
ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID);
if (!ndlp)
return 1;
lpfc_enqueue_node(vport, ndlp);
}
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_SCR);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
rc = lpfc_reg_fab_ctrl_node(vport, ndlp);
if (rc) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
"0937 %s: Failed to reg fc node, rc %d\n",
__func__, rc);
return 1;
}
}
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_SCR;
pcmd += sizeof(uint32_t);
/* For SCR, remainder of payload is SCR parameter page */
memset(pcmd, 0, sizeof(SCR));
((SCR *) pcmd)->Function = SCR_FUNC_FULL;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue SCR: did:x%x",
ndlp->nlp_DID, 0, 0);
phba->fc_stat.elsXmitSCR++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue SCR: did:x%x refcnt %d",
ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_issue_els_rscn - Issue an RSCN to the Fabric Controller (Fabric)
* or the other nport (pt2pt).
* @vport: pointer to a host virtual N_Port data structure.
* @retry: number of retries to the command IOCB.
*
* This routine issues a RSCN to the Fabric Controller (DID 0xFFFFFD)
* when connected to a fabric, or to the remote port when connected
* in point-to-point mode. When sent to the Fabric Controller, it will
* replay the RSCN to registered recipients.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the RSCN ELS command.
*
* Return code
* 0 - Successfully issued RSCN command
* 1 - Failed to issue RSCN command
**/
int
lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry)
{
int rc = 0;
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
struct lpfc_nodelist *ndlp;
struct {
struct fc_els_rscn rscn;
struct fc_els_rscn_page portid;
} *event;
uint32_t nportid;
uint16_t cmdsize = sizeof(*event);
/* Not supported for private loop */
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
!(vport->fc_flag & FC_PUBLIC_LOOP))
return 1;
if (vport->fc_flag & FC_PT2PT) {
/* find any mapped nport - that would be the other nport */
ndlp = lpfc_findnode_mapped(vport);
if (!ndlp)
return 1;
} else {
nportid = FC_FID_FCTRL;
/* find the fabric controller node */
ndlp = lpfc_findnode_did(vport, nportid);
if (!ndlp) {
/* if one didn't exist, make one */
ndlp = lpfc_nlp_init(vport, nportid);
if (!ndlp)
return 1;
lpfc_enqueue_node(vport, ndlp);
}
}
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_RSCN_XMT);
if (!elsiocb)
return 1;
event = elsiocb->cmd_dmabuf->virt;
event->rscn.rscn_cmd = ELS_RSCN;
event->rscn.rscn_page_len = sizeof(struct fc_els_rscn_page);
event->rscn.rscn_plen = cpu_to_be16(cmdsize);
nportid = vport->fc_myDID;
/* appears that page flags must be 0 for fabric to broadcast RSCN */
event->portid.rscn_page_flags = 0;
event->portid.rscn_fid[0] = (nportid & 0x00FF0000) >> 16;
event->portid.rscn_fid[1] = (nportid & 0x0000FF00) >> 8;
event->portid.rscn_fid[2] = nportid & 0x000000FF;
phba->fc_stat.elsXmitRSCN++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue RSCN: did:x%x",
ndlp->nlp_DID, 0, 0);
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_issue_els_farpr - Issue a farp to an node on a vport
* @vport: pointer to a host virtual N_Port data structure.
* @nportid: N_Port identifier to the remote node.
* @retry: number of retries to the command IOCB.
*
* This routine issues a Fibre Channel Address Resolution Response
* (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
* is passed into the function. It first search the @vport node list to find
* the matching ndlp. If no such ndlp is found, a new ndlp shall be created
* for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
* lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the FARPR ELS command.
*
* Return code
* 0 - Successfully issued farpr command
* 1 - Failed to issue farpr command
**/
static int
lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
{
int rc = 0;
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
FARP *fp;
uint8_t *pcmd;
uint32_t *lp;
uint16_t cmdsize;
struct lpfc_nodelist *ondlp;
struct lpfc_nodelist *ndlp;
cmdsize = (sizeof(uint32_t) + sizeof(FARP));
ndlp = lpfc_findnode_did(vport, nportid);
if (!ndlp) {
ndlp = lpfc_nlp_init(vport, nportid);
if (!ndlp)
return 1;
lpfc_enqueue_node(vport, ndlp);
}
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_FARPR);
if (!elsiocb)
return 1;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
pcmd += sizeof(uint32_t);
/* Fill in FARPR payload */
fp = (FARP *) (pcmd);
memset(fp, 0, sizeof(FARP));
lp = (uint32_t *) pcmd;
*lp++ = be32_to_cpu(nportid);
*lp++ = be32_to_cpu(vport->fc_myDID);
fp->Rflags = 0;
fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
ondlp = lpfc_findnode_did(vport, nportid);
if (ondlp) {
memcpy(&fp->OportName, &ondlp->nlp_portname,
sizeof(struct lpfc_name));
memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
sizeof(struct lpfc_name));
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue FARPR: did:x%x",
ndlp->nlp_DID, 0, 0);
phba->fc_stat.elsXmitFARPR++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_cmd;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
/* The additional lpfc_nlp_put will cause the following
* lpfc_els_free_iocb routine to trigger the release of
* the node.
*/
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
/* This will cause the callback-function lpfc_cmpl_els_cmd to
* trigger the release of the node.
*/
/* Don't release reference count as RDF is likely outstanding */
return 0;
}
/**
* lpfc_issue_els_rdf - Register for diagnostic functions from the fabric.
* @vport: pointer to a host virtual N_Port data structure.
* @retry: retry counter for the command IOCB.
*
* This routine issues an ELS RDF to the Fabric Controller to register
* for diagnostic functions.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the RDF ELS command.
*
* Return code
* 0 - Successfully issued rdf command
* 1 - Failed to issue rdf command
**/
int
lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
struct lpfc_els_rdf_req *prdf;
struct lpfc_nodelist *ndlp;
uint16_t cmdsize;
int rc;
cmdsize = sizeof(*prdf);
ndlp = lpfc_findnode_did(vport, Fabric_Cntl_DID);
if (!ndlp) {
ndlp = lpfc_nlp_init(vport, Fabric_Cntl_DID);
if (!ndlp)
return -ENODEV;
lpfc_enqueue_node(vport, ndlp);
}
/* RDF ELS is not required on an NPIV VN_Port. */
if (vport->port_type == LPFC_NPIV_PORT)
return -EACCES;
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_RDF);
if (!elsiocb)
return -ENOMEM;
/* Configure the payload for the supported FPIN events. */
prdf = (struct lpfc_els_rdf_req *)elsiocb->cmd_dmabuf->virt;
memset(prdf, 0, cmdsize);
prdf->rdf.fpin_cmd = ELS_RDF;
prdf->rdf.desc_len = cpu_to_be32(sizeof(struct lpfc_els_rdf_req) -
sizeof(struct fc_els_rdf));
prdf->reg_d1.reg_desc.desc_tag = cpu_to_be32(ELS_DTAG_FPIN_REGISTER);
prdf->reg_d1.reg_desc.desc_len = cpu_to_be32(
FC_TLV_DESC_LENGTH_FROM_SZ(prdf->reg_d1));
prdf->reg_d1.reg_desc.count = cpu_to_be32(ELS_RDF_REG_TAG_CNT);
prdf->reg_d1.desc_tags[0] = cpu_to_be32(ELS_DTAG_LNK_INTEGRITY);
prdf->reg_d1.desc_tags[1] = cpu_to_be32(ELS_DTAG_DELIVERY);
prdf->reg_d1.desc_tags[2] = cpu_to_be32(ELS_DTAG_PEER_CONGEST);
prdf->reg_d1.desc_tags[3] = cpu_to_be32(ELS_DTAG_CONGESTION);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
"6444 Xmit RDF to remote NPORT x%x Reg: %x %x\n",
ndlp->nlp_DID, phba->cgn_reg_signal,
phba->cgn_reg_fpin);
phba->cgn_fpin_frequency = LPFC_FPIN_INIT_FREQ;
elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return -EIO;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue RDF: did:x%x refcnt %d",
ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return -EIO;
}
return 0;
}
/**
* lpfc_els_rcv_rdf - Receive RDF ELS request from the fabric.
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* A received RDF implies a possible change to fabric supported diagnostic
* functions. This routine sends LS_ACC and then has the Nx_Port issue a new
* RDF request to reregister for supported diagnostic functions.
*
* Return code
* 0 - Success
* -EIO - Failed to process received RDF
**/
static int
lpfc_els_rcv_rdf(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
/* Send LS_ACC */
if (lpfc_els_rsp_acc(vport, ELS_CMD_RDF, cmdiocb, ndlp, NULL)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
"1623 Failed to RDF_ACC from x%x for x%x\n",
ndlp->nlp_DID, vport->fc_myDID);
return -EIO;
}
/* Issue new RDF for reregistering */
if (lpfc_issue_els_rdf(vport, 0)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
"2623 Failed to re register RDF for x%x\n",
vport->fc_myDID);
return -EIO;
}
return 0;
}
/**
* lpfc_least_capable_settings - helper function for EDC rsp processing
* @phba: pointer to lpfc hba data structure.
* @pcgd: pointer to congestion detection descriptor in EDC rsp.
*
* This helper routine determines the least capable setting for
* congestion signals, signal freq, including scale, from the
* congestion detection descriptor in the EDC rsp. The routine
* sets @phba values in preparation for a set_featues mailbox.
**/
static void
lpfc_least_capable_settings(struct lpfc_hba *phba,
struct fc_diag_cg_sig_desc *pcgd)
{
u32 rsp_sig_cap = 0, drv_sig_cap = 0;
u32 rsp_sig_freq_cyc = 0, rsp_sig_freq_scale = 0;
/* Get rsp signal and frequency capabilities. */
rsp_sig_cap = be32_to_cpu(pcgd->xmt_signal_capability);
rsp_sig_freq_cyc = be16_to_cpu(pcgd->xmt_signal_frequency.count);
rsp_sig_freq_scale = be16_to_cpu(pcgd->xmt_signal_frequency.units);
/* If the Fport does not support signals. Set FPIN only */
if (rsp_sig_cap == EDC_CG_SIG_NOTSUPPORTED)
goto out_no_support;
/* Apply the xmt scale to the xmt cycle to get the correct frequency.
* Adapter default is 100 millisSeconds. Convert all xmt cycle values
* to milliSeconds.
*/
switch (rsp_sig_freq_scale) {
case EDC_CG_SIGFREQ_SEC:
rsp_sig_freq_cyc *= MSEC_PER_SEC;
break;
case EDC_CG_SIGFREQ_MSEC:
rsp_sig_freq_cyc = 1;
break;
default:
goto out_no_support;
}
/* Convenient shorthand. */
drv_sig_cap = phba->cgn_reg_signal;
/* Choose the least capable frequency. */
if (rsp_sig_freq_cyc > phba->cgn_sig_freq)
phba->cgn_sig_freq = rsp_sig_freq_cyc;
/* Should be some common signals support. Settle on least capable
* signal and adjust FPIN values. Initialize defaults to ease the
* decision.
*/
phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
if (rsp_sig_cap == EDC_CG_SIG_WARN_ONLY &&
(drv_sig_cap == EDC_CG_SIG_WARN_ONLY ||
drv_sig_cap == EDC_CG_SIG_WARN_ALARM)) {
phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
}
if (rsp_sig_cap == EDC_CG_SIG_WARN_ALARM) {
if (drv_sig_cap == EDC_CG_SIG_WARN_ALARM) {
phba->cgn_reg_signal = EDC_CG_SIG_WARN_ALARM;
phba->cgn_reg_fpin = LPFC_CGN_FPIN_NONE;
}
if (drv_sig_cap == EDC_CG_SIG_WARN_ONLY) {
phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
}
}
/* We are NOT recording signal frequency in congestion info buffer */
return;
out_no_support:
phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
phba->cgn_sig_freq = 0;
phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN;
}
DECLARE_ENUM2STR_LOOKUP(lpfc_get_tlv_dtag_nm, fc_ls_tlv_dtag,
FC_LS_TLV_DTAG_INIT);
/**
* lpfc_cmpl_els_edc - Completion callback function for EDC
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion callback function for issuing the Exchange
* Diagnostic Capabilities (EDC) command. The driver issues an EDC to
* notify the FPort of its Congestion and Link Fault capabilities. This
* routine parses the FPort's response and decides on the least common
* values applicable to both FPort and NPort for Warnings and Alarms that
* are communicated via hardware signals.
**/
static void
lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
IOCB_t *irsp_iocb;
struct fc_els_edc_resp *edc_rsp;
struct fc_tlv_desc *tlv;
struct fc_diag_cg_sig_desc *pcgd;
struct fc_diag_lnkflt_desc *plnkflt;
struct lpfc_dmabuf *pcmd, *prsp;
const char *dtag_nm;
u32 *pdata, dtag;
int desc_cnt = 0, bytes_remain;
bool rcv_cap_desc = false;
struct lpfc_nodelist *ndlp;
u32 ulp_status, ulp_word4, tmo, did, iotag;
ndlp = cmdiocb->ndlp;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
did = get_job_els_rsp64_did(phba, rspiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
tmo = get_wqe_tmo(rspiocb);
iotag = get_wqe_reqtag(rspiocb);
} else {
irsp_iocb = &rspiocb->iocb;
tmo = irsp_iocb->ulpTimeout;
iotag = irsp_iocb->ulpIoTag;
}
lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD,
"EDC cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, did);
/* ELS cmd tag <ulpIoTag> completes */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
"4201 EDC cmd tag x%x completes Data: x%x x%x x%x\n",
iotag, ulp_status, ulp_word4, tmo);
pcmd = cmdiocb->cmd_dmabuf;
if (!pcmd)
goto out;
pdata = (u32 *)pcmd->virt;
if (!pdata)
goto out;
/* Need to clear signal values, send features MB and RDF with FPIN. */
if (ulp_status)
goto out;
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
if (!prsp)
goto out;
edc_rsp = prsp->virt;
if (!edc_rsp)
goto out;
/* ELS cmd tag <ulpIoTag> completes */
lpfc_printf_log(phba, KERN_INFO,
LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
"4676 Fabric EDC Rsp: "
"0x%02x, 0x%08x\n",
edc_rsp->acc_hdr.la_cmd,
be32_to_cpu(edc_rsp->desc_list_len));
/*
* Payload length in bytes is the response descriptor list
* length minus the 12 bytes of Link Service Request
* Information descriptor in the reply.
*/
bytes_remain = be32_to_cpu(edc_rsp->desc_list_len) -
sizeof(struct fc_els_lsri_desc);
if (bytes_remain <= 0)
goto out;
tlv = edc_rsp->desc;
/*
* cycle through EDC diagnostic descriptors to find the
* congestion signaling capability descriptor
*/
while (bytes_remain) {
if (bytes_remain < FC_TLV_DESC_HDR_SZ) {
lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
"6461 Truncated TLV hdr on "
"Diagnostic descriptor[%d]\n",
desc_cnt);
goto out;
}
dtag = be32_to_cpu(tlv->desc_tag);
switch (dtag) {
case ELS_DTAG_LNK_FAULT_CAP:
if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
sizeof(struct fc_diag_lnkflt_desc)) {
lpfc_printf_log(phba, KERN_WARNING,
LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
"6462 Truncated Link Fault Diagnostic "
"descriptor[%d]: %d vs 0x%zx 0x%zx\n",
desc_cnt, bytes_remain,
FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
sizeof(struct fc_diag_lnkflt_desc));
goto out;
}
plnkflt = (struct fc_diag_lnkflt_desc *)tlv;
lpfc_printf_log(phba, KERN_INFO,
LOG_ELS | LOG_LDS_EVENT,
"4617 Link Fault Desc Data: 0x%08x 0x%08x "
"0x%08x 0x%08x 0x%08x\n",
be32_to_cpu(plnkflt->desc_tag),
be32_to_cpu(plnkflt->desc_len),
be32_to_cpu(
plnkflt->degrade_activate_threshold),
be32_to_cpu(
plnkflt->degrade_deactivate_threshold),
be32_to_cpu(plnkflt->fec_degrade_interval));
break;
case ELS_DTAG_CG_SIGNAL_CAP:
if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
sizeof(struct fc_diag_cg_sig_desc)) {
lpfc_printf_log(
phba, KERN_WARNING, LOG_CGN_MGMT,
"6463 Truncated Cgn Signal Diagnostic "
"descriptor[%d]: %d vs 0x%zx 0x%zx\n",
desc_cnt, bytes_remain,
FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
sizeof(struct fc_diag_cg_sig_desc));
goto out;
}
pcgd = (struct fc_diag_cg_sig_desc *)tlv;
lpfc_printf_log(
phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
"4616 CGN Desc Data: 0x%08x 0x%08x "
"0x%08x 0x%04x 0x%04x 0x%08x 0x%04x 0x%04x\n",
be32_to_cpu(pcgd->desc_tag),
be32_to_cpu(pcgd->desc_len),
be32_to_cpu(pcgd->xmt_signal_capability),
be16_to_cpu(pcgd->xmt_signal_frequency.count),
be16_to_cpu(pcgd->xmt_signal_frequency.units),
be32_to_cpu(pcgd->rcv_signal_capability),
be16_to_cpu(pcgd->rcv_signal_frequency.count),
be16_to_cpu(pcgd->rcv_signal_frequency.units));
/* Compare driver and Fport capabilities and choose
* least common.
*/
lpfc_least_capable_settings(phba, pcgd);
rcv_cap_desc = true;
break;
default:
dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
"4919 unknown Diagnostic "
"Descriptor[%d]: tag x%x (%s)\n",
desc_cnt, dtag, dtag_nm);
}
bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv);
tlv = fc_tlv_next_desc(tlv);
desc_cnt++;
}
out:
if (!rcv_cap_desc) {
phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN;
phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
phba->cgn_sig_freq = 0;
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_CGN_MGMT,
"4202 EDC rsp error - sending RDF "
"for FPIN only.\n");
}
lpfc_config_cgn_signal(phba);
/* Check to see if link went down during discovery */
lpfc_els_chk_latt(phba->pport);
lpfc_debugfs_disc_trc(phba->pport, LPFC_DISC_TRC_ELS_CMD,
"EDC Cmpl: did:x%x refcnt %d",
ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
static void
lpfc_format_edc_lft_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
{
struct fc_diag_lnkflt_desc *lft = (struct fc_diag_lnkflt_desc *)tlv;
lft->desc_tag = cpu_to_be32(ELS_DTAG_LNK_FAULT_CAP);
lft->desc_len = cpu_to_be32(
FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_lnkflt_desc));
lft->degrade_activate_threshold =
cpu_to_be32(phba->degrade_activate_threshold);
lft->degrade_deactivate_threshold =
cpu_to_be32(phba->degrade_deactivate_threshold);
lft->fec_degrade_interval = cpu_to_be32(phba->fec_degrade_interval);
}
static void
lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
{
struct fc_diag_cg_sig_desc *cgd = (struct fc_diag_cg_sig_desc *)tlv;
/* We are assuming cgd was zero'ed before calling this routine */
/* Configure the congestion detection capability */
cgd->desc_tag = cpu_to_be32(ELS_DTAG_CG_SIGNAL_CAP);
/* Descriptor len doesn't include the tag or len fields. */
cgd->desc_len = cpu_to_be32(
FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_cg_sig_desc));
/* xmt_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED.
* xmt_signal_frequency.count already set to 0.
* xmt_signal_frequency.units already set to 0.
*/
if (phba->cmf_active_mode == LPFC_CFG_OFF) {
/* rcv_signal_capability already set to EDC_CG_SIG_NOTSUPPORTED.
* rcv_signal_frequency.count already set to 0.
* rcv_signal_frequency.units already set to 0.
*/
phba->cgn_sig_freq = 0;
return;
}
switch (phba->cgn_reg_signal) {
case EDC_CG_SIG_WARN_ONLY:
cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ONLY);
break;
case EDC_CG_SIG_WARN_ALARM:
cgd->rcv_signal_capability = cpu_to_be32(EDC_CG_SIG_WARN_ALARM);
break;
default:
/* rcv_signal_capability left 0 thus no support */
break;
}
/* We start negotiation with lpfc_fabric_cgn_frequency, after
* the completion we settle on the higher frequency.
*/
cgd->rcv_signal_frequency.count =
cpu_to_be16(lpfc_fabric_cgn_frequency);
cgd->rcv_signal_frequency.units =
cpu_to_be16(EDC_CG_SIGFREQ_MSEC);
}
static bool
lpfc_link_is_lds_capable(struct lpfc_hba *phba)
{
if (!(phba->lmt & LMT_64Gb))
return false;
if (phba->sli_rev != LPFC_SLI_REV4)
return false;
if (phba->sli4_hba.conf_trunk) {
if (phba->trunk_link.phy_lnk_speed == LPFC_USER_LINK_SPEED_64G)
return true;
} else if (phba->fc_linkspeed == LPFC_LINK_SPEED_64GHZ) {
return true;
}
return false;
}
/**
* lpfc_issue_els_edc - Exchange Diagnostic Capabilities with the fabric.
* @vport: pointer to a host virtual N_Port data structure.
* @retry: retry counter for the command iocb.
*
* This routine issues an ELS EDC to the F-Port Controller to communicate
* this N_Port's support of hardware signals in its Congestion
* Capabilities Descriptor.
*
* Note: This routine does not check if one or more signals are
* set in the cgn_reg_signal parameter. The caller makes the
* decision to enforce cgn_reg_signal as nonzero or zero depending
* on the conditions. During Fabric requests, the driver
* requires cgn_reg_signals to be nonzero. But a dynamic request
* to set the congestion mode to OFF from Monitor or Manage
* would correctly issue an EDC with no signals enabled to
* turn off switch functionality and then update the FW.
*
* Return code
* 0 - Successfully issued edc command
* 1 - Failed to issue edc command
**/
int
lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
struct fc_els_edc *edc_req;
struct fc_tlv_desc *tlv;
u16 cmdsize;
struct lpfc_nodelist *ndlp;
u8 *pcmd = NULL;
u32 cgn_desc_size, lft_desc_size;
int rc;
if (vport->port_type == LPFC_NPIV_PORT)
return -EACCES;
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
return -ENODEV;
cgn_desc_size = (phba->cgn_init_reg_signal) ?
sizeof(struct fc_diag_cg_sig_desc) : 0;
lft_desc_size = (lpfc_link_is_lds_capable(phba)) ?
sizeof(struct fc_diag_lnkflt_desc) : 0;
cmdsize = cgn_desc_size + lft_desc_size;
/* Skip EDC if no applicable descriptors */
if (!cmdsize)
goto try_rdf;
cmdsize += sizeof(struct fc_els_edc);
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
ndlp->nlp_DID, ELS_CMD_EDC);
if (!elsiocb)
goto try_rdf;
/* Configure the payload for the supported Diagnostics capabilities. */
pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
memset(pcmd, 0, cmdsize);
edc_req = (struct fc_els_edc *)pcmd;
edc_req->desc_len = cpu_to_be32(cgn_desc_size + lft_desc_size);
edc_req->edc_cmd = ELS_EDC;
tlv = edc_req->desc;
if (cgn_desc_size) {
lpfc_format_edc_cgn_desc(phba, tlv);
phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
tlv = fc_tlv_next_desc(tlv);
}
if (lft_desc_size)
lpfc_format_edc_lft_desc(phba, tlv);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
"4623 Xmit EDC to remote "
"NPORT x%x reg_sig x%x reg_fpin:x%x\n",
ndlp->nlp_DID, phba->cgn_reg_signal,
phba->cgn_reg_fpin);
elsiocb->cmd_cmpl = lpfc_cmpl_els_disc_cmd;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return -EIO;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue EDC: did:x%x refcnt %d",
ndlp->nlp_DID, kref_read(&ndlp->kref), 0);
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
/* The additional lpfc_nlp_put will cause the following
* lpfc_els_free_iocb routine to trigger the rlease of
* the node.
*/
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
goto try_rdf;
}
return 0;
try_rdf:
phba->cgn_reg_fpin = LPFC_CGN_FPIN_WARN | LPFC_CGN_FPIN_ALARM;
phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
rc = lpfc_issue_els_rdf(vport, 0);
return rc;
}
/**
* lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
* @vport: pointer to a host virtual N_Port data structure.
* @nlp: pointer to a node-list data structure.
*
* This routine cancels the timer with a delayed IOCB-command retry for
* a @vport's @ndlp. It stops the timer for the delayed function retrial and
* removes the ELS retry event if it presents. In addition, if the
* NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
* commands are sent for the @vport's nodes that require issuing discovery
* ADISC.
**/
void
lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_work_evt *evtp;
if (!(nlp->nlp_flag & NLP_DELAY_TMO))
return;
spin_lock_irq(&nlp->lock);
nlp->nlp_flag &= ~NLP_DELAY_TMO;
spin_unlock_irq(&nlp->lock);
del_timer_sync(&nlp->nlp_delayfunc);
nlp->nlp_last_elscmd = 0;
if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
list_del_init(&nlp->els_retry_evt.evt_listp);
/* Decrement nlp reference count held for the delayed retry */
evtp = &nlp->els_retry_evt;
lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
}
if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
spin_lock_irq(&nlp->lock);
nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(&nlp->lock);
if (vport->num_disc_nodes) {
if (vport->port_state < LPFC_VPORT_READY) {
/* Check if there are more ADISCs to be sent */
lpfc_more_adisc(vport);
} else {
/* Check if there are more PLOGIs to be sent */
lpfc_more_plogi(vport);
if (vport->num_disc_nodes == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
lpfc_end_rscn(vport);
}
}
}
}
return;
}
/**
* lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
* @t: pointer to the timer function associated data (ndlp).
*
* This routine is invoked by the ndlp delayed-function timer to check
* whether there is any pending ELS retry event(s) with the node. If not, it
* simply returns. Otherwise, if there is at least one ELS delayed event, it
* adds the delayed events to the HBA work list and invokes the
* lpfc_worker_wake_up() routine to wake up worker thread to process the
* event. Note that lpfc_nlp_get() is called before posting the event to
* the work list to hold reference count of ndlp so that it guarantees the
* reference to ndlp will still be available when the worker thread gets
* to the event associated with the ndlp.
**/
void
lpfc_els_retry_delay(struct timer_list *t)
{
struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc);
struct lpfc_vport *vport = ndlp->vport;
struct lpfc_hba *phba = vport->phba;
unsigned long flags;
struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
spin_lock_irqsave(&phba->hbalock, flags);
if (!list_empty(&evtp->evt_listp)) {
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
/* We need to hold the node by incrementing the reference
* count until the queued work is done
*/
evtp->evt_arg1 = lpfc_nlp_get(ndlp);
if (evtp->evt_arg1) {
evtp->evt = LPFC_EVT_ELS_RETRY;
list_add_tail(&evtp->evt_listp, &phba->work_list);
lpfc_worker_wake_up(phba);
}
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
/**
* lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
* @ndlp: pointer to a node-list data structure.
*
* This routine is the worker-thread handler for processing the @ndlp delayed
* event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
* the last ELS command from the associated ndlp and invokes the proper ELS
* function according to the delayed ELS command to retry the command.
**/
void
lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
{
struct lpfc_vport *vport = ndlp->vport;
uint32_t cmd, retry;
spin_lock_irq(&ndlp->lock);
cmd = ndlp->nlp_last_elscmd;
ndlp->nlp_last_elscmd = 0;
if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
spin_unlock_irq(&ndlp->lock);
return;
}
ndlp->nlp_flag &= ~NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
/*
* If a discovery event readded nlp_delayfunc after timer
* firing and before processing the timer, cancel the
* nlp_delayfunc.
*/
del_timer_sync(&ndlp->nlp_delayfunc);
retry = ndlp->nlp_retry;
ndlp->nlp_retry = 0;
switch (cmd) {
case ELS_CMD_FLOGI:
lpfc_issue_els_flogi(vport, ndlp, retry);
break;
case ELS_CMD_PLOGI:
if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
}
break;
case ELS_CMD_ADISC:
if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
}
break;
case ELS_CMD_PRLI:
case ELS_CMD_NVMEPRLI:
if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
}
break;
case ELS_CMD_LOGO:
if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
}
break;
case ELS_CMD_FDISC:
if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
lpfc_issue_els_fdisc(vport, ndlp, retry);
break;
}
return;
}
/**
* lpfc_link_reset - Issue link reset
* @vport: pointer to a virtual N_Port data structure.
*
* This routine performs link reset by sending INIT_LINK mailbox command.
* For SLI-3 adapter, link attention interrupt is enabled before issuing
* INIT_LINK mailbox command.
*
* Return code
* 0 - Link reset initiated successfully
* 1 - Failed to initiate link reset
**/
int
lpfc_link_reset(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
uint32_t control;
int rc;
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
"2851 Attempt link reset\n");
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2852 Failed to allocate mbox memory");
return 1;
}
/* Enable Link attention interrupts */
if (phba->sli_rev <= LPFC_SLI_REV3) {
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag |= LPFC_PROCESS_LA;
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
spin_unlock_irq(&phba->hbalock);
}
lpfc_init_link(phba, mbox, phba->cfg_topology,
phba->cfg_link_speed);
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2853 Failed to issue INIT_LINK "
"mbox command, rc:x%x\n", rc);
mempool_free(mbox, phba->mbox_mem_pool);
return 1;
}
return 0;
}
/**
* lpfc_els_retry - Make retry decision on an els command iocb
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine makes a retry decision on an ELS command IOCB, which has
* failed. The following ELS IOCBs use this function for retrying the command
* when previously issued command responsed with error status: FLOGI, PLOGI,
* PRLI, ADISC and FDISC. Based on the ELS command type and the
* returned error status, it makes the decision whether a retry shall be
* issued for the command, and whether a retry shall be made immediately or
* delayed. In the former case, the corresponding ELS command issuing-function
* is called to retry the command. In the later case, the ELS command shall
* be posted to the ndlp delayed event and delayed function timer set to the
* ndlp for the delayed command issusing.
*
* Return code
* 0 - No retry of els command is made
* 1 - Immediate or delayed retry of els command is made
**/
static int
lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
union lpfc_wqe128 *irsp = &rspiocb->wqe;
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf;
uint32_t *elscmd;
struct ls_rjt stat;
int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
int logerr = 0;
uint32_t cmd = 0;
uint32_t did;
int link_reset = 0, rc;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
/* Note: cmd_dmabuf may be 0 for internal driver abort
* of delays ELS command.
*/
if (pcmd && pcmd->virt) {
elscmd = (uint32_t *) (pcmd->virt);
cmd = *elscmd++;
}
if (ndlp)
did = ndlp->nlp_DID;
else {
/* We should only hit this case for retrying PLOGI */
did = get_job_els_rsp64_did(phba, rspiocb);
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp && (cmd != ELS_CMD_PLOGI))
return 0;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Retry ELS: wd7:x%x wd4:x%x did:x%x",
*(((uint32_t *)irsp) + 7), ulp_word4, did);
switch (ulp_status) {
case IOSTAT_FCP_RSP_ERROR:
break;
case IOSTAT_REMOTE_STOP:
if (phba->sli_rev == LPFC_SLI_REV4) {
/* This IO was aborted by the target, we don't
* know the rxid and because we did not send the
* ABTS we cannot generate and RRQ.
*/
lpfc_set_rrq_active(phba, ndlp,
cmdiocb->sli4_lxritag, 0, 0);
}
break;
case IOSTAT_LOCAL_REJECT:
switch ((ulp_word4 & IOERR_PARAM_MASK)) {
case IOERR_LOOP_OPEN_FAILURE:
if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
delay = 1000;
retry = 1;
break;
case IOERR_ILLEGAL_COMMAND:
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0124 Retry illegal cmd x%x "
"retry:x%x delay:x%x\n",
cmd, cmdiocb->retry, delay);
retry = 1;
/* All command's retry policy */
maxretry = 8;
if (cmdiocb->retry > 2)
delay = 1000;
break;
case IOERR_NO_RESOURCES:
logerr = 1; /* HBA out of resources */
retry = 1;
if (cmdiocb->retry > 100)
delay = 100;
maxretry = 250;
break;
case IOERR_ILLEGAL_FRAME:
delay = 100;
retry = 1;
break;
case IOERR_INVALID_RPI:
if (cmd == ELS_CMD_PLOGI &&
did == NameServer_DID) {
/* Continue forever if plogi to */
/* the nameserver fails */
maxretry = 0;
delay = 100;
} else if (cmd == ELS_CMD_PRLI &&
ndlp->nlp_state != NLP_STE_PRLI_ISSUE) {
/* State-command disagreement. The PRLI was
* failed with an invalid rpi meaning there
* some unexpected state change. Don't retry.
*/
maxretry = 0;
retry = 0;
break;
}
retry = 1;
break;
case IOERR_SEQUENCE_TIMEOUT:
if (cmd == ELS_CMD_PLOGI &&
did == NameServer_DID &&
(cmdiocb->retry + 1) == maxretry) {
/* Reset the Link */
link_reset = 1;
break;
}
retry = 1;
delay = 100;
break;
case IOERR_SLI_ABORTED:
/* Retry ELS PLOGI command?
* Possibly the rport just wasn't ready.
*/
if (cmd == ELS_CMD_PLOGI) {
/* No retry if state change */
if (ndlp &&
ndlp->nlp_state != NLP_STE_PLOGI_ISSUE)
goto out_retry;
retry = 1;
maxretry = 2;
}
break;
}
break;
case IOSTAT_NPORT_RJT:
case IOSTAT_FABRIC_RJT:
if (ulp_word4 & RJT_UNAVAIL_TEMP) {
retry = 1;
break;
}
break;
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
logerr = 1; /* Fabric / Remote NPort out of resources */
retry = 1;
break;
case IOSTAT_LS_RJT:
stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4);
/* Added for Vendor specifc support
* Just keep retrying for these Rsn / Exp codes
*/
if ((vport->fc_flag & FC_PT2PT) &&
cmd == ELS_CMD_NVMEPRLI) {
switch (stat.un.b.lsRjtRsnCode) {
case LSRJT_UNABLE_TPC:
case LSRJT_INVALID_CMD:
case LSRJT_LOGICAL_ERR:
case LSRJT_CMD_UNSUPPORTED:
lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
"0168 NVME PRLI LS_RJT "
"reason %x port doesn't "
"support NVME, disabling NVME\n",
stat.un.b.lsRjtRsnCode);
retry = 0;
vport->fc_flag |= FC_PT2PT_NO_NVME;
goto out_retry;
}
}
switch (stat.un.b.lsRjtRsnCode) {
case LSRJT_UNABLE_TPC:
/* Special case for PRLI LS_RJTs. Recall that lpfc
* uses a single routine to issue both PRLI FC4 types.
* If the PRLI is rejected because that FC4 type
* isn't really supported, don't retry and cause
* multiple transport registrations. Otherwise, parse
* the reason code/reason code explanation and take the
* appropriate action.
*/
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY | LOG_ELS | LOG_NODE,
"0153 ELS cmd x%x LS_RJT by x%x. "
"RsnCode x%x RsnCodeExp x%x\n",
cmd, did, stat.un.b.lsRjtRsnCode,
stat.un.b.lsRjtRsnCodeExp);
switch (stat.un.b.lsRjtRsnCodeExp) {
case LSEXP_CANT_GIVE_DATA:
case LSEXP_CMD_IN_PROGRESS:
if (cmd == ELS_CMD_PLOGI) {
delay = 1000;
maxretry = 48;
}
retry = 1;
break;
case LSEXP_REQ_UNSUPPORTED:
case LSEXP_NO_RSRC_ASSIGN:
/* These explanation codes get no retry. */
if (cmd == ELS_CMD_PRLI ||
cmd == ELS_CMD_NVMEPRLI)
break;
fallthrough;
default:
/* Limit the delay and retry action to a limited
* cmd set. There are other ELS commands where
* a retry is not expected.
*/
if (cmd == ELS_CMD_PLOGI ||
cmd == ELS_CMD_PRLI ||
cmd == ELS_CMD_NVMEPRLI) {
delay = 1000;
maxretry = lpfc_max_els_tries + 1;
retry = 1;
}
break;
}
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(cmd == ELS_CMD_FDISC) &&
(stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0125 FDISC Failed (x%x). "
"Fabric out of resources\n",
stat.un.lsRjtError);
lpfc_vport_set_state(vport,
FC_VPORT_NO_FABRIC_RSCS);
}
break;
case LSRJT_LOGICAL_BSY:
if ((cmd == ELS_CMD_PLOGI) ||
(cmd == ELS_CMD_PRLI) ||
(cmd == ELS_CMD_NVMEPRLI)) {
delay = 1000;
maxretry = 48;
} else if (cmd == ELS_CMD_FDISC) {
/* FDISC retry policy */
maxretry = 48;
if (cmdiocb->retry >= 32)
delay = 1000;
}
retry = 1;
break;
case LSRJT_LOGICAL_ERR:
/* There are some cases where switches return this
* error when they are not ready and should be returning
* Logical Busy. We should delay every time.
*/
if (cmd == ELS_CMD_FDISC &&
stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
maxretry = 3;
delay = 1000;
retry = 1;
} else if (cmd == ELS_CMD_FLOGI &&
stat.un.b.lsRjtRsnCodeExp ==
LSEXP_NOTHING_MORE) {
vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf;
retry = 1;
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0820 FLOGI Failed (x%x). "
"BBCredit Not Supported\n",
stat.un.lsRjtError);
}
break;
case LSRJT_PROTOCOL_ERR:
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(cmd == ELS_CMD_FDISC) &&
((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
(stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0122 FDISC Failed (x%x). "
"Fabric Detected Bad WWN\n",
stat.un.lsRjtError);
lpfc_vport_set_state(vport,
FC_VPORT_FABRIC_REJ_WWN);
}
break;
case LSRJT_VENDOR_UNIQUE:
if ((stat.un.b.vendorUnique == 0x45) &&
(cmd == ELS_CMD_FLOGI)) {
goto out_retry;
}
break;
case LSRJT_CMD_UNSUPPORTED:
/* lpfc nvmet returns this type of LS_RJT when it
* receives an FCP PRLI because lpfc nvmet only
* support NVME. ELS request is terminated for FCP4
* on this rport.
*/
if (stat.un.b.lsRjtRsnCodeExp ==
LSEXP_REQ_UNSUPPORTED) {
if (cmd == ELS_CMD_PRLI)
goto out_retry;
}
break;
}
break;
case IOSTAT_INTERMED_RSP:
case IOSTAT_BA_RJT:
break;
default:
break;
}
if (link_reset) {
rc = lpfc_link_reset(vport);
if (rc) {
/* Do not give up. Retry PLOGI one more time and attempt
* link reset if PLOGI fails again.
*/
retry = 1;
delay = 100;
goto out_retry;
}
return 1;
}
if (did == FDMI_DID)
retry = 1;
if ((cmd == ELS_CMD_FLOGI) &&
(phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) {
/* FLOGI retry policy */
retry = 1;
/* retry FLOGI forever */
if (phba->link_flag != LS_LOOPBACK_MODE)
maxretry = 0;
else
maxretry = 2;
if (cmdiocb->retry >= 100)
delay = 5000;
else if (cmdiocb->retry >= 32)
delay = 1000;
} else if ((cmd == ELS_CMD_FDISC) &&
!lpfc_error_lost_link(vport, ulp_status, ulp_word4)) {
/* retry FDISCs every second up to devloss */
retry = 1;
maxretry = vport->cfg_devloss_tmo;
delay = 1000;
}
cmdiocb->retry++;
if (maxretry && (cmdiocb->retry >= maxretry)) {
phba->fc_stat.elsRetryExceeded++;
retry = 0;
}
if ((vport->load_flag & FC_UNLOADING) != 0)
retry = 0;
out_retry:
if (retry) {
if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
/* Stop retrying PLOGI and FDISC if in FCF discovery */
if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2849 Stop retry ELS command "
"x%x to remote NPORT x%x, "
"Data: x%x x%x\n", cmd, did,
cmdiocb->retry, delay);
return 0;
}
}
/* Retry ELS command <elsCmd> to remote NPORT <did> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0107 Retry ELS command x%x to remote "
"NPORT x%x Data: x%x x%x\n",
cmd, did, cmdiocb->retry, delay);
if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
((ulp_status != IOSTAT_LOCAL_REJECT) ||
((ulp_word4 & IOERR_PARAM_MASK) !=
IOERR_NO_RESOURCES))) {
/* Don't reset timer for no resources */
/* If discovery / RSCN timer is running, reset it */
if (timer_pending(&vport->fc_disctmo) ||
(vport->fc_flag & FC_RSCN_MODE))
lpfc_set_disctmo(vport);
}
phba->fc_stat.elsXmitRetry++;
if (ndlp && delay) {
phba->fc_stat.elsDelayRetry++;
ndlp->nlp_retry = cmdiocb->retry;
/* delay is specified in milliseconds */
mod_timer(&ndlp->nlp_delayfunc,
jiffies + msecs_to_jiffies(delay));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_prev_state = ndlp->nlp_state;
if ((cmd == ELS_CMD_PRLI) ||
(cmd == ELS_CMD_NVMEPRLI))
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_PRLI_ISSUE);
else if (cmd != ELS_CMD_ADISC)
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_NPR_NODE);
ndlp->nlp_last_elscmd = cmd;
return 1;
}
switch (cmd) {
case ELS_CMD_FLOGI:
lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_FDISC:
lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_PLOGI:
if (ndlp) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_PLOGI_ISSUE);
}
lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
return 1;
case ELS_CMD_ADISC:
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_PRLI:
case ELS_CMD_NVMEPRLI:
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
return 1;
case ELS_CMD_LOGO:
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
return 1;
}
}
/* No retry ELS command <elsCmd> to remote NPORT <did> */
if (logerr) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0137 No retry ELS command x%x to remote "
"NPORT x%x: Out of Resources: Error:x%x/%x\n",
cmd, did, ulp_status,
ulp_word4);
}
else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0108 No retry ELS command x%x to remote "
"NPORT x%x Retried:%d Error:x%x/%x\n",
cmd, did, cmdiocb->retry, ulp_status,
ulp_word4);
}
return 0;
}
/**
* lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
* @phba: pointer to lpfc hba data structure.
* @buf_ptr1: pointer to the lpfc DMA buffer data structure.
*
* This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
* associated with a command IOCB back to the lpfc DMA buffer pool. It first
* checks to see whether there is a lpfc DMA buffer associated with the
* response of the command IOCB. If so, it will be released before releasing
* the lpfc DMA buffer associated with the IOCB itself.
*
* Return code
* 0 - Successfully released lpfc DMA buffer (currently, always return 0)
**/
static int
lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
{
struct lpfc_dmabuf *buf_ptr;
/* Free the response before processing the command. */
if (!list_empty(&buf_ptr1->list)) {
list_remove_head(&buf_ptr1->list, buf_ptr,
struct lpfc_dmabuf,
list);
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
}
lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
kfree(buf_ptr1);
return 0;
}
/**
* lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
* @phba: pointer to lpfc hba data structure.
* @buf_ptr: pointer to the lpfc dma buffer data structure.
*
* This routine releases the lpfc Direct Memory Access (DMA) buffer
* associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
* pool.
*
* Return code
* 0 - Successfully released lpfc DMA buffer (currently, always return 0)
**/
static int
lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
{
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
return 0;
}
/**
* lpfc_els_free_iocb - Free a command iocb and its associated resources
* @phba: pointer to lpfc hba data structure.
* @elsiocb: pointer to lpfc els command iocb data structure.
*
* This routine frees a command IOCB and its associated resources. The
* command IOCB data structure contains the reference to various associated
* resources, these fields must be set to NULL if the associated reference
* not present:
* cmd_dmabuf - reference to cmd.
* cmd_dmabuf->next - reference to rsp
* rsp_dmabuf - unused
* bpl_dmabuf - reference to bpl
*
* It first properly decrements the reference count held on ndlp for the
* IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
* set, it invokes the lpfc_els_free_data() routine to release the Direct
* Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
* adds the DMA buffer the @phba data structure for the delayed release.
* If reference to the Buffer Pointer List (BPL) is present, the
* lpfc_els_free_bpl() routine is invoked to release the DMA memory
* associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
* invoked to release the IOCB data structure back to @phba IOCBQ list.
*
* Return code
* 0 - Success (currently, always return 0)
**/
int
lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
{
struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
/* The I/O iocb is complete. Clear the node and first dmbuf */
elsiocb->ndlp = NULL;
/* cmd_dmabuf = cmd, cmd_dmabuf->next = rsp, bpl_dmabuf = bpl */
if (elsiocb->cmd_dmabuf) {
if (elsiocb->cmd_flag & LPFC_DELAY_MEM_FREE) {
/* Firmware could still be in progress of DMAing
* payload, so don't free data buffer till after
* a hbeat.
*/
elsiocb->cmd_flag &= ~LPFC_DELAY_MEM_FREE;
buf_ptr = elsiocb->cmd_dmabuf;
elsiocb->cmd_dmabuf = NULL;
if (buf_ptr) {
buf_ptr1 = NULL;
spin_lock_irq(&phba->hbalock);
if (!list_empty(&buf_ptr->list)) {
list_remove_head(&buf_ptr->list,
buf_ptr1, struct lpfc_dmabuf,
list);
INIT_LIST_HEAD(&buf_ptr1->list);
list_add_tail(&buf_ptr1->list,
&phba->elsbuf);
phba->elsbuf_cnt++;
}
INIT_LIST_HEAD(&buf_ptr->list);
list_add_tail(&buf_ptr->list, &phba->elsbuf);
phba->elsbuf_cnt++;
spin_unlock_irq(&phba->hbalock);
}
} else {
buf_ptr1 = elsiocb->cmd_dmabuf;
lpfc_els_free_data(phba, buf_ptr1);
elsiocb->cmd_dmabuf = NULL;
}
}
if (elsiocb->bpl_dmabuf) {
buf_ptr = elsiocb->bpl_dmabuf;
lpfc_els_free_bpl(phba, buf_ptr);
elsiocb->bpl_dmabuf = NULL;
}
lpfc_sli_release_iocbq(phba, elsiocb);
return 0;
}
/**
* lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion callback function to the Logout (LOGO)
* Accept (ACC) Response ELS command. This routine is invoked to indicate
* the completion of the LOGO process. If the node has transitioned to NPR,
* this routine unregisters the RPI if it is still registered. The
* lpfc_els_free_iocb() is invoked to release the IOCB data structure.
**/
static void
lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
struct lpfc_vport *vport = cmdiocb->vport;
u32 ulp_status, ulp_word4;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"ACC LOGO cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, ndlp->nlp_DID);
/* ACC to LOGO completes to NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0109 ACC to LOGO completes to NPort x%x refcnt %d "
"Data: x%x x%x x%x\n",
ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp->nlp_flag,
ndlp->nlp_state, ndlp->nlp_rpi);
/* This clause allows the LOGO ACC to complete and free resources
* for the Fabric Domain Controller. It does deliberately skip
* the unreg_rpi and release rpi because some fabrics send RDP
* requests after logging out from the initiator.
*/
if (ndlp->nlp_type & NLP_FABRIC &&
((ndlp->nlp_DID & WELL_KNOWN_DID_MASK) != WELL_KNOWN_DID_MASK))
goto out;
if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
/* If PLOGI is being retried, PLOGI completion will cleanup the
* node. The NLP_NPR_2B_DISC flag needs to be retained to make
* progress on nodes discovered from last RSCN.
*/
if ((ndlp->nlp_flag & NLP_DELAY_TMO) &&
(ndlp->nlp_last_elscmd == ELS_CMD_PLOGI))
goto out;
if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
lpfc_unreg_rpi(vport, ndlp);
}
out:
/*
* The driver received a LOGO from the rport and has ACK'd it.
* At this point, the driver is done so release the IOCB
*/
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
/**
* lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* This routine is the completion callback function for unregister default
* RPI (Remote Port Index) mailbox command to the @phba. It simply releases
* the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
* decrements the ndlp reference count held for this completion callback
* function. After that, it invokes the lpfc_drop_node to check
* whether it is appropriate to release the node.
**/
void
lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;
u32 mbx_flag = pmb->mbox_flag;
u32 mbx_cmd = pmb->u.mb.mbxCommand;
if (ndlp) {
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
"0006 rpi x%x DID:%x flg:%x %d x%px "
"mbx_cmd x%x mbx_flag x%x x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
kref_read(&ndlp->kref), ndlp, mbx_cmd,
mbx_flag, pmb);
/* This ends the default/temporary RPI cleanup logic for this
* ndlp and the node and rpi needs to be released. Free the rpi
* first on an UNREG_LOGIN and then release the final
* references.
*/
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
if (mbx_cmd == MBX_UNREG_LOGIN)
ndlp->nlp_flag &= ~NLP_UNREG_INP;
spin_unlock_irq(&ndlp->lock);
lpfc_nlp_put(ndlp);
lpfc_drop_node(ndlp->vport, ndlp);
}
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
}
/**
* lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion callback function for ELS Response IOCB
* command. In normal case, this callback function just properly sets the
* nlp_flag bitmap in the ndlp data structure, if the mbox command reference
* field in the command IOCB is not NULL, the referred mailbox command will
* be send out, and then invokes the lpfc_els_free_iocb() routine to release
* the IOCB.
**/
static void
lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
IOCB_t *irsp;
LPFC_MBOXQ_t *mbox = NULL;
u32 ulp_status, ulp_word4, tmo, did, iotag;
if (!vport) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3177 ELS response failed\n");
goto out;
}
if (cmdiocb->context_un.mbox)
mbox = cmdiocb->context_un.mbox;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
did = get_job_els_rsp64_did(phba, cmdiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
tmo = get_wqe_tmo(cmdiocb);
iotag = get_wqe_reqtag(cmdiocb);
} else {
irsp = &rspiocb->iocb;
tmo = irsp->ulpTimeout;
iotag = irsp->ulpIoTag;
}
/* Check to see if link went down during discovery */
if (!ndlp || lpfc_els_chk_latt(vport)) {
if (mbox)
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
goto out;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"ELS rsp cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, did);
/* ELS response tag <ulpIoTag> completes */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0110 ELS response tag x%x completes "
"Data: x%x x%x x%x x%x x%x x%x x%x x%x %p %p\n",
iotag, ulp_status, ulp_word4, tmo,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi, kref_read(&ndlp->kref), mbox, ndlp);
if (mbox) {
if (ulp_status == 0
&& (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
if (!lpfc_unreg_rpi(vport, ndlp) &&
(!(vport->fc_flag & FC_PT2PT))) {
if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
ndlp->nlp_state ==
NLP_STE_REG_LOGIN_ISSUE) {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY,
"0314 PLOGI recov "
"DID x%x "
"Data: x%x x%x x%x\n",
ndlp->nlp_DID,
ndlp->nlp_state,
ndlp->nlp_rpi,
ndlp->nlp_flag);
goto out_free_mbox;
}
}
/* Increment reference count to ndlp to hold the
* reference to ndlp for the callback function.
*/
mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
if (!mbox->ctx_ndlp)
goto out_free_mbox;
mbox->vport = vport;
if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
}
else {
mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_REG_LOGIN_ISSUE);
}
ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
!= MBX_NOT_FINISHED)
goto out;
/* Decrement the ndlp reference count we
* set for this failed mailbox command.
*/
lpfc_nlp_put(ndlp);
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
/* ELS rsp: Cannot issue reg_login for <NPortid> */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0138 ELS rsp: Cannot issue reg_login for x%x "
"Data: x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi);
}
out_free_mbox:
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
}
out:
if (ndlp && shost) {
spin_lock_irq(&ndlp->lock);
if (mbox)
ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI;
spin_unlock_irq(&ndlp->lock);
}
/* An SLI4 NPIV instance wants to drop the node at this point under
* these conditions and release the RPI.
*/
if (phba->sli_rev == LPFC_SLI_REV4 &&
vport && vport->port_type == LPFC_NPIV_PORT &&
!(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) {
if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE &&
ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
spin_unlock_irq(&ndlp->lock);
}
lpfc_drop_node(vport, ndlp);
} else if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE &&
ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE &&
ndlp->nlp_state != NLP_STE_PRLI_ISSUE) {
/* Drop ndlp if there is no planned or outstanding
* issued PRLI.
*
* In cases when the ndlp is acting as both an initiator
* and target function, let our issued PRLI determine
* the final ndlp kref drop.
*/
lpfc_drop_node(vport, ndlp);
}
}
/* Release the originating I/O reference. */
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
return;
}
/**
* lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
* @vport: pointer to a host virtual N_Port data structure.
* @flag: the els command code to be accepted.
* @oldiocb: pointer to the original lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
* @mbox: pointer to the driver internal queue element for mailbox command.
*
* This routine prepares and issues an Accept (ACC) response IOCB
* command. It uses the @flag to properly set up the IOCB field for the
* specific ACC response command to be issued and invokes the
* lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
* @mbox pointer is passed in, it will be put into the context_un.mbox
* field of the IOCB for the completion callback function to issue the
* mailbox command to the HBA later when callback is invoked.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the corresponding
* response ELS IOCB command.
*
* Return code
* 0 - Successfully issued acc response
* 1 - Failed to issue acc response
**/
int
lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
LPFC_MBOXQ_t *mbox)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
IOCB_t *oldcmd;
union lpfc_wqe128 *wqe;
union lpfc_wqe128 *oldwqe = &oldiocb->wqe;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
struct serv_parm *sp;
uint16_t cmdsize;
int rc;
ELS_PKT *els_pkt_ptr;
struct fc_els_rdf_resp *rdf_resp;
switch (flag) {
case ELS_CMD_ACC:
cmdsize = sizeof(uint32_t);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
spin_unlock_irq(&ndlp->lock);
return 1;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* XRI / rx_id */
bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
bf_get(wqe_ctxt_tag,
&oldwqe->xmit_els_rsp.wqe_com));
/* oxid */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
bf_get(wqe_rcvoxid,
&oldwqe->xmit_els_rsp.wqe_com));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
icmd->unsli3.rcvsli3.ox_id =
oldcmd->unsli3.rcvsli3.ox_id;
}
pcmd = elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
break;
case ELS_CMD_FLOGI:
case ELS_CMD_PLOGI:
cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* XRI / rx_id */
bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
bf_get(wqe_ctxt_tag,
&oldwqe->xmit_els_rsp.wqe_com));
/* oxid */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
bf_get(wqe_rcvoxid,
&oldwqe->xmit_els_rsp.wqe_com));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
icmd->unsli3.rcvsli3.ox_id =
oldcmd->unsli3.rcvsli3.ox_id;
}
pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
if (mbox)
elsiocb->context_un.mbox = mbox;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
sp = (struct serv_parm *)pcmd;
if (flag == ELS_CMD_FLOGI) {
/* Copy the received service parameters back */
memcpy(sp, &phba->fc_fabparam,
sizeof(struct serv_parm));
/* Clear the F_Port bit */
sp->cmn.fPort = 0;
/* Mark all class service parameters as invalid */
sp->cls1.classValid = 0;
sp->cls2.classValid = 0;
sp->cls3.classValid = 0;
sp->cls4.classValid = 0;
/* Copy our worldwide names */
memcpy(&sp->portName, &vport->fc_sparam.portName,
sizeof(struct lpfc_name));
memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
sizeof(struct lpfc_name));
} else {
memcpy(pcmd, &vport->fc_sparam,
sizeof(struct serv_parm));
sp->cmn.valid_vendor_ver_level = 0;
memset(sp->un.vendorVersion, 0,
sizeof(sp->un.vendorVersion));
sp->cmn.bbRcvSizeMsb &= 0xF;
/* If our firmware supports this feature, convey that
* info to the target using the vendor specific field.
*/
if (phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) {
sp->cmn.valid_vendor_ver_level = 1;
sp->un.vv.vid = cpu_to_be32(LPFC_VV_EMLX_ID);
sp->un.vv.flags =
cpu_to_be32(LPFC_VV_SUPPRESS_RSP);
}
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
break;
case ELS_CMD_PRLO:
cmdsize = sizeof(uint32_t) + sizeof(PRLO);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* XRI / rx_id */
bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
bf_get(wqe_ctxt_tag,
&oldwqe->xmit_els_rsp.wqe_com));
/* oxid */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
bf_get(wqe_rcvoxid,
&oldwqe->xmit_els_rsp.wqe_com));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
icmd->unsli3.rcvsli3.ox_id =
oldcmd->unsli3.rcvsli3.ox_id;
}
pcmd = (u8 *) elsiocb->cmd_dmabuf->virt;
memcpy(pcmd, oldiocb->cmd_dmabuf->virt,
sizeof(uint32_t) + sizeof(PRLO));
*((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
els_pkt_ptr = (ELS_PKT *) pcmd;
els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC PRLO: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
break;
case ELS_CMD_RDF:
cmdsize = sizeof(*rdf_resp);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* XRI / rx_id */
bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
bf_get(wqe_ctxt_tag,
&oldwqe->xmit_els_rsp.wqe_com));
/* oxid */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
bf_get(wqe_rcvoxid,
&oldwqe->xmit_els_rsp.wqe_com));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
icmd->unsli3.rcvsli3.ox_id =
oldcmd->unsli3.rcvsli3.ox_id;
}
pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
rdf_resp = (struct fc_els_rdf_resp *)pcmd;
memset(rdf_resp, 0, sizeof(*rdf_resp));
rdf_resp->acc_hdr.la_cmd = ELS_LS_ACC;
/* FC-LS-5 specifies desc_list_len shall be set to 12 */
rdf_resp->desc_list_len = cpu_to_be32(12);
/* FC-LS-5 specifies LS REQ Information descriptor */
rdf_resp->lsri.desc_tag = cpu_to_be32(1);
rdf_resp->lsri.desc_len = cpu_to_be32(sizeof(u32));
rdf_resp->lsri.rqst_w0.cmd = ELS_RDF;
break;
default:
return 1;
}
if (ndlp->nlp_flag & NLP_LOGO_ACC) {
spin_lock_irq(&ndlp->lock);
if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
spin_unlock_irq(&ndlp->lock);
elsiocb->cmd_cmpl = lpfc_cmpl_els_logo_acc;
} else {
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
}
phba->fc_stat.elsXmitACC++;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
/* Xmit ELS ACC response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, "
"XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
"RPI: x%x, fc_flag x%x refcnt %d\n",
rc, elsiocb->iotag, elsiocb->sli4_xritag,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref));
return 0;
}
/**
* lpfc_els_rsp_reject - Prepare and issue a rjt response iocb command
* @vport: pointer to a virtual N_Port data structure.
* @rejectError: reject response to issue
* @oldiocb: pointer to the original lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
* @mbox: pointer to the driver internal queue element for mailbox command.
*
* This routine prepares and issue an Reject (RJT) response IOCB
* command. If a @mbox pointer is passed in, it will be put into the
* context_un.mbox field of the IOCB for the completion callback function
* to issue to the HBA later.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the reject response
* ELS IOCB command.
*
* Return code
* 0 - Successfully issued reject response
* 1 - Failed to issue reject response
**/
int
lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
LPFC_MBOXQ_t *mbox)
{
int rc;
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
IOCB_t *oldcmd;
union lpfc_wqe128 *wqe;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
cmdsize = 2 * sizeof(uint32_t);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_LS_RJT);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
get_job_rcvoxid(phba, oldiocb));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
}
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
pcmd += sizeof(uint32_t);
*((uint32_t *) (pcmd)) = rejectError;
if (mbox)
elsiocb->context_un.mbox = mbox;
/* Xmit ELS RJT <err> response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0129 Xmit ELS RJT x%x response tag x%x "
"xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
"rpi x%x\n",
rejectError, elsiocb->iotag,
get_job_ulpcontext(phba, elsiocb), ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue LS_RJT: did:x%x flg:x%x err:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
phba->fc_stat.elsXmitLSRJT++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
/* The NPIV instance is rejecting this unsolicited ELS. Make sure the
* node's assigned RPI gets released provided this node is not already
* registered with the transport.
*/
if (phba->sli_rev == LPFC_SLI_REV4 &&
vport->port_type == LPFC_NPIV_PORT &&
!(ndlp->fc4_xpt_flags & SCSI_XPT_REGD)) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_RELEASE_RPI;
spin_unlock_irq(&ndlp->lock);
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_issue_els_edc_rsp - Exchange Diagnostic Capabilities with the fabric.
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to the original lpfc command iocb data structure.
* @ndlp: NPort to where rsp is directed
*
* This routine issues an EDC ACC RSP to the F-Port Controller to communicate
* this N_Port's support of hardware signals in its Congestion
* Capabilities Descriptor.
*
* Return code
* 0 - Successfully issued edc rsp command
* 1 - Failed to issue edc rsp command
**/
static int
lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct fc_els_edc_resp *edc_rsp;
struct fc_tlv_desc *tlv;
struct lpfc_iocbq *elsiocb;
IOCB_t *icmd, *cmd;
union lpfc_wqe128 *wqe;
u32 cgn_desc_size, lft_desc_size;
u16 cmdsize;
uint8_t *pcmd;
int rc;
cmdsize = sizeof(struct fc_els_edc_resp);
cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc);
lft_desc_size = (lpfc_link_is_lds_capable(phba)) ?
sizeof(struct fc_diag_lnkflt_desc) : 0;
cmdsize += cgn_desc_size + lft_desc_size;
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry,
ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
get_job_ulpcontext(phba, cmdiocb)); /* Xri / rx_id */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
get_job_rcvoxid(phba, cmdiocb));
} else {
icmd = &elsiocb->iocb;
cmd = &cmdiocb->iocb;
icmd->ulpContext = cmd->ulpContext; /* Xri / rx_id */
icmd->unsli3.rcvsli3.ox_id = cmd->unsli3.rcvsli3.ox_id;
}
pcmd = elsiocb->cmd_dmabuf->virt;
memset(pcmd, 0, cmdsize);
edc_rsp = (struct fc_els_edc_resp *)pcmd;
edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC;
edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) +
cgn_desc_size + lft_desc_size);
edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO);
edc_rsp->lsri.desc_len = cpu_to_be32(
FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc));
edc_rsp->lsri.rqst_w0.cmd = ELS_EDC;
tlv = edc_rsp->desc;
lpfc_format_edc_cgn_desc(phba, tlv);
tlv = fc_tlv_next_desc(tlv);
if (lft_desc_size)
lpfc_format_edc_lft_desc(phba, tlv);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue EDC ACC: did:x%x flg:x%x refcnt %d",
ndlp->nlp_DID, ndlp->nlp_flag,
kref_read(&ndlp->kref));
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
phba->fc_stat.elsXmitACC++;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
/* Xmit ELS ACC response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0152 Xmit EDC ACC response Status: x%x, IoTag: x%x, "
"XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
"RPI: x%x, fc_flag x%x\n",
rc, elsiocb->iotag, elsiocb->sli4_xritag,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi, vport->fc_flag);
return 0;
}
/**
* lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
* @vport: pointer to a virtual N_Port data structure.
* @oldiocb: pointer to the original lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine prepares and issues an Accept (ACC) response to Address
* Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
* and invokes the lpfc_sli_issue_iocb() routine to send out the command.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the ADISC Accept response
* ELS IOCB command.
*
* Return code
* 0 - Successfully issued acc adisc response
* 1 - Failed to issue adisc acc response
**/
int
lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
ADISC *ap;
IOCB_t *icmd, *oldcmd;
union lpfc_wqe128 *wqe;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
u32 ulp_context;
cmdsize = sizeof(uint32_t) + sizeof(ADISC);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* XRI / rx_id */
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
get_job_ulpcontext(phba, oldiocb));
ulp_context = get_job_ulpcontext(phba, elsiocb);
/* oxid */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
get_job_rcvoxid(phba, oldiocb));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
ulp_context = elsiocb->iocb.ulpContext;
icmd->unsli3.rcvsli3.ox_id =
oldcmd->unsli3.rcvsli3.ox_id;
}
/* Xmit ADISC ACC response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0130 Xmit ADISC ACC response iotag x%x xri: "
"x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
elsiocb->iotag, ulp_context,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi);
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
ap = (ADISC *) (pcmd);
ap->hardAL_PA = phba->fc_pref_ALPA;
memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
ap->DID = be32_to_cpu(vport->fc_myDID);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC ADISC: did:x%x flg:x%x refcnt %d",
ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
phba->fc_stat.elsXmitACC++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
* @vport: pointer to a virtual N_Port data structure.
* @oldiocb: pointer to the original lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine prepares and issues an Accept (ACC) response to Process
* Login (PRLI) ELS command. It simply prepares the payload of the IOCB
* and invokes the lpfc_sli_issue_iocb() routine to send out the command.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the PRLI Accept response
* ELS IOCB command.
*
* Return code
* 0 - Successfully issued acc prli response
* 1 - Failed to issue acc prli response
**/
int
lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
PRLI *npr;
struct lpfc_nvme_prli *npr_nvme;
lpfc_vpd_t *vpd;
IOCB_t *icmd;
IOCB_t *oldcmd;
union lpfc_wqe128 *wqe;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
uint32_t prli_fc4_req, *req_payload;
struct lpfc_dmabuf *req_buf;
int rc;
u32 elsrspcmd, ulp_context;
/* Need the incoming PRLI payload to determine if the ACC is for an
* FC4 or NVME PRLI type. The PRLI type is at word 1.
*/
req_buf = oldiocb->cmd_dmabuf;
req_payload = (((uint32_t *)req_buf->virt) + 1);
/* PRLI type payload is at byte 3 for FCP or NVME. */
prli_fc4_req = be32_to_cpu(*req_payload);
prli_fc4_req = (prli_fc4_req >> 24) & 0xff;
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"6127 PRLI_ACC: Req Type x%x, Word1 x%08x\n",
prli_fc4_req, *((uint32_t *)req_payload));
if (prli_fc4_req == PRLI_FCP_TYPE) {
cmdsize = sizeof(uint32_t) + sizeof(PRLI);
elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
} else if (prli_fc4_req == PRLI_NVME_TYPE) {
cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli);
elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK));
} else {
return 1;
}
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, elsrspcmd);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */
ulp_context = get_job_ulpcontext(phba, elsiocb);
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
get_job_rcvoxid(phba, oldiocb));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
ulp_context = elsiocb->iocb.ulpContext;
icmd->unsli3.rcvsli3.ox_id =
oldcmd->unsli3.rcvsli3.ox_id;
}
/* Xmit PRLI ACC response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0131 Xmit PRLI ACC response tag x%x xri x%x, "
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
elsiocb->iotag, ulp_context,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi);
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
memset(pcmd, 0, cmdsize);
*((uint32_t *)(pcmd)) = elsrspcmd;
pcmd += sizeof(uint32_t);
/* For PRLI, remainder of payload is PRLI parameter page */
vpd = &phba->vpd;
if (prli_fc4_req == PRLI_FCP_TYPE) {
/*
* If the remote port is a target and our firmware version
* is 3.20 or later, set the following bits for FC-TAPE
* support.
*/
npr = (PRLI *) pcmd;
if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
(vpd->rev.feaLevelHigh >= 0x02)) {
npr->ConfmComplAllowed = 1;
npr->Retry = 1;
npr->TaskRetryIdReq = 1;
}
npr->acceptRspCode = PRLI_REQ_EXECUTED;
/* Set image pair for complementary pairs only. */
if (ndlp->nlp_type & NLP_FCP_TARGET)
npr->estabImagePair = 1;
else
npr->estabImagePair = 0;
npr->readXferRdyDis = 1;
npr->ConfmComplAllowed = 1;
npr->prliType = PRLI_FCP_TYPE;
npr->initiatorFunc = 1;
/* Xmit PRLI ACC response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO,
LOG_ELS | LOG_NODE | LOG_DISCOVERY,
"6014 FCP issue PRLI ACC imgpair %d "
"retry %d task %d\n",
npr->estabImagePair,
npr->Retry, npr->TaskRetryIdReq);
} else if (prli_fc4_req == PRLI_NVME_TYPE) {
/* Respond with an NVME PRLI Type */
npr_nvme = (struct lpfc_nvme_prli *) pcmd;
bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
bf_set(prli_estabImagePair, npr_nvme, 0); /* Should be 0 */
bf_set(prli_acc_rsp_code, npr_nvme, PRLI_REQ_EXECUTED);
if (phba->nvmet_support) {
bf_set(prli_tgt, npr_nvme, 1);
bf_set(prli_disc, npr_nvme, 1);
if (phba->cfg_nvme_enable_fb) {
bf_set(prli_fba, npr_nvme, 1);
/* TBD. Target mode needs to post buffers
* that support the configured first burst
* byte size.
*/
bf_set(prli_fb_sz, npr_nvme,
phba->cfg_nvmet_fb_size);
}
} else {
bf_set(prli_init, npr_nvme, 1);
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
"6015 NVME issue PRLI ACC word1 x%08x "
"word4 x%08x word5 x%08x flag x%x, "
"fcp_info x%x nlp_type x%x\n",
npr_nvme->word1, npr_nvme->word4,
npr_nvme->word5, ndlp->nlp_flag,
ndlp->nlp_fcp_info, ndlp->nlp_type);
npr_nvme->word1 = cpu_to_be32(npr_nvme->word1);
npr_nvme->word4 = cpu_to_be32(npr_nvme->word4);
npr_nvme->word5 = cpu_to_be32(npr_nvme->word5);
} else
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6128 Unknown FC_TYPE x%x x%x ndlp x%06x\n",
prli_fc4_req, ndlp->nlp_fc4_type,
ndlp->nlp_DID);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC PRLI: did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
phba->fc_stat.elsXmitACC++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
* @vport: pointer to a virtual N_Port data structure.
* @format: rnid command format.
* @oldiocb: pointer to the original lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine issues a Request Node Identification Data (RNID) Accept
* (ACC) response. It constructs the RNID ACC response command according to
* the proper @format and then calls the lpfc_sli_issue_iocb() routine to
* issue the response.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function.
*
* Return code
* 0 - Successfully issued acc rnid response
* 1 - Failed to issue acc rnid response
**/
static int
lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
RNID *rn;
IOCB_t *icmd, *oldcmd;
union lpfc_wqe128 *wqe;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
u32 ulp_context;
cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
+ (2 * sizeof(struct lpfc_name));
if (format)
cmdsize += sizeof(RNID_TOP_DISC);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */
ulp_context = get_job_ulpcontext(phba, elsiocb);
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
get_job_rcvoxid(phba, oldiocb));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
ulp_context = elsiocb->iocb.ulpContext;
icmd->unsli3.rcvsli3.ox_id =
oldcmd->unsli3.rcvsli3.ox_id;
}
/* Xmit RNID ACC response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0132 Xmit RNID ACC response tag x%x xri x%x\n",
elsiocb->iotag, ulp_context);
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
memset(pcmd, 0, sizeof(RNID));
rn = (RNID *) (pcmd);
rn->Format = format;
rn->CommonLen = (2 * sizeof(struct lpfc_name));
memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
switch (format) {
case 0:
rn->SpecificLen = 0;
break;
case RNID_TOPOLOGY_DISC:
rn->SpecificLen = sizeof(RNID_TOP_DISC);
memcpy(&rn->un.topologyDisc.portName,
&vport->fc_portname, sizeof(struct lpfc_name));
rn->un.topologyDisc.unitType = RNID_HBA;
rn->un.topologyDisc.physPort = 0;
rn->un.topologyDisc.attachedNodes = 0;
break;
default:
rn->CommonLen = 0;
rn->SpecificLen = 0;
break;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC RNID: did:x%x flg:x%x refcnt %d",
ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
phba->fc_stat.elsXmitACC++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_els_clear_rrq - Clear the rq that this rrq describes.
* @vport: pointer to a virtual N_Port data structure.
* @iocb: pointer to the lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* Return
**/
static void
lpfc_els_clear_rrq(struct lpfc_vport *vport,
struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
uint8_t *pcmd;
struct RRQ *rrq;
uint16_t rxid;
uint16_t xri;
struct lpfc_node_rrq *prrq;
pcmd = (uint8_t *)iocb->cmd_dmabuf->virt;
pcmd += sizeof(uint32_t);
rrq = (struct RRQ *)pcmd;
rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
rxid = bf_get(rrq_rxid, rrq);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
" x%x x%x\n",
be32_to_cpu(bf_get(rrq_did, rrq)),
bf_get(rrq_oxid, rrq),
rxid,
get_wqe_reqtag(iocb),
get_job_ulpcontext(phba, iocb));
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
xri = bf_get(rrq_oxid, rrq);
else
xri = rxid;
prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
if (prrq)
lpfc_clr_rrq_active(phba, xri, prrq);
return;
}
/**
* lpfc_els_rsp_echo_acc - Issue echo acc response
* @vport: pointer to a virtual N_Port data structure.
* @data: pointer to echo data to return in the accept.
* @oldiocb: pointer to the original lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* Return code
* 0 - Successfully issued acc echo response
* 1 - Failed to issue acc echo response
**/
static int
lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd, *oldcmd;
union lpfc_wqe128 *wqe;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
int rc;
u32 ulp_context;
if (phba->sli_rev == LPFC_SLI_REV4)
cmdsize = oldiocb->wcqe_cmpl.total_data_placed;
else
cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
/* The accumulated length can exceed the BPL_SIZE. For
* now, use this as the limit
*/
if (cmdsize > LPFC_BPL_SIZE)
cmdsize = LPFC_BPL_SIZE;
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
get_job_ulpcontext(phba, oldiocb)); /* Xri / rx_id */
ulp_context = get_job_ulpcontext(phba, elsiocb);
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
get_job_rcvoxid(phba, oldiocb));
} else {
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
ulp_context = elsiocb->iocb.ulpContext;
icmd->unsli3.rcvsli3.ox_id =
oldcmd->unsli3.rcvsli3.ox_id;
}
/* Xmit ECHO ACC response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2876 Xmit ECHO ACC response tag x%x xri x%x\n",
elsiocb->iotag, ulp_context);
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t);
memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Issue ACC ECHO: did:x%x flg:x%x refcnt %d",
ndlp->nlp_DID, ndlp->nlp_flag, kref_read(&ndlp->kref));
phba->fc_stat.elsXmitACC++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine issues Address Discover (ADISC) ELS commands to those
* N_Ports which are in node port recovery state and ADISC has not been issued
* for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
* lpfc_issue_els_adisc() routine, the per @vport number of discover count
* (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
* pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
* be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
* IOCBs quit for later pick up. On the other hand, after walking through
* all the ndlps with the @vport and there is none ADISC IOCB issued, the
* @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
* no more ADISC need to be sent.
*
* Return code
* The number of N_Ports with adisc issued.
**/
int
lpfc_els_disc_adisc(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp, *next_ndlp;
int sentadisc = 0;
/* go thru NPR nodes and issue any remaining ELS ADISCs */
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state != NLP_STE_NPR_NODE ||
!(ndlp->nlp_flag & NLP_NPR_ADISC))
continue;
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) {
/* This node was marked for ADISC but was not picked
* for discovery. This is possible if the node was
* missing in gidft response.
*
* At time of marking node for ADISC, we skipped unreg
* from backend
*/
lpfc_nlp_unreg_node(vport, ndlp);
lpfc_unreg_rpi(vport, ndlp);
continue;
}
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
lpfc_issue_els_adisc(vport, ndlp, 0);
sentadisc++;
vport->num_disc_nodes++;
if (vport->num_disc_nodes >=
vport->cfg_discovery_threads) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_NLP_MORE;
spin_unlock_irq(shost->host_lock);
break;
}
}
if (sentadisc == 0) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NLP_MORE;
spin_unlock_irq(shost->host_lock);
}
return sentadisc;
}
/**
* lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
* which are in node port recovery state, with a @vport. Each time an ELS
* ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
* the per @vport number of discover count (num_disc_nodes) shall be
* incremented. If the num_disc_nodes reaches a pre-configured threshold
* (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
* bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
* later pick up. On the other hand, after walking through all the ndlps with
* the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
* shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
* PLOGI need to be sent.
*
* Return code
* The number of N_Ports with plogi issued.
**/
int
lpfc_els_disc_plogi(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp, *next_ndlp;
int sentplogi = 0;
/* go thru NPR nodes and issue any remaining ELS PLOGIs */
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
(ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
(ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
(ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
sentplogi++;
vport->num_disc_nodes++;
if (vport->num_disc_nodes >=
vport->cfg_discovery_threads) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_NLP_MORE;
spin_unlock_irq(shost->host_lock);
break;
}
}
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6452 Discover PLOGI %d flag x%x\n",
sentplogi, vport->fc_flag);
if (sentplogi) {
lpfc_set_disctmo(vport);
}
else {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NLP_MORE;
spin_unlock_irq(shost->host_lock);
}
return sentplogi;
}
static uint32_t
lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
uint32_t word0)
{
desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
desc->payload.els_req = word0;
desc->length = cpu_to_be32(sizeof(desc->payload));
return sizeof(struct fc_rdp_link_service_desc);
}
static uint32_t
lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
uint8_t *page_a0, uint8_t *page_a2)
{
uint16_t wavelength;
uint16_t temperature;
uint16_t rx_power;
uint16_t tx_bias;
uint16_t tx_power;
uint16_t vcc;
uint16_t flag = 0;
struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
&page_a0[SSF_TRANSCEIVER_CODE_B4];
trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
&page_a0[SSF_TRANSCEIVER_CODE_B5];
if ((trasn_code_byte4->fc_sw_laser) ||
(trasn_code_byte5->fc_sw_laser_sl) ||
(trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
} else if (trasn_code_byte4->fc_lw_laser) {
wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
page_a0[SSF_WAVELENGTH_B0];
if (wavelength == SFP_WAVELENGTH_LC1310)
flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
if (wavelength == SFP_WAVELENGTH_LL1550)
flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
}
/* check if its SFP+ */
flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
<< SFP_FLAG_CT_SHIFT;
/* check if its OPTICAL */
flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
SFP_FLAG_IS_OPTICAL_PORT : 0)
<< SFP_FLAG_IS_OPTICAL_SHIFT;
temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
page_a2[SFF_TEMPERATURE_B0]);
vcc = (page_a2[SFF_VCC_B1] << 8 |
page_a2[SFF_VCC_B0]);
tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
page_a2[SFF_TXPOWER_B0]);
tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
page_a2[SFF_TX_BIAS_CURRENT_B0]);
rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
page_a2[SFF_RXPOWER_B0]);
desc->sfp_info.temperature = cpu_to_be16(temperature);
desc->sfp_info.rx_power = cpu_to_be16(rx_power);
desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
desc->sfp_info.tx_power = cpu_to_be16(tx_power);
desc->sfp_info.vcc = cpu_to_be16(vcc);
desc->sfp_info.flags = cpu_to_be16(flag);
desc->length = cpu_to_be32(sizeof(desc->sfp_info));
return sizeof(struct fc_rdp_sfp_desc);
}
static uint32_t
lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
READ_LNK_VAR *stat)
{
uint32_t type;
desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
desc->info.port_type = cpu_to_be32(type);
desc->info.link_status.link_failure_cnt =
cpu_to_be32(stat->linkFailureCnt);
desc->info.link_status.loss_of_synch_cnt =
cpu_to_be32(stat->lossSyncCnt);
desc->info.link_status.loss_of_signal_cnt =
cpu_to_be32(stat->lossSignalCnt);
desc->info.link_status.primitive_seq_proto_err =
cpu_to_be32(stat->primSeqErrCnt);
desc->info.link_status.invalid_trans_word =
cpu_to_be32(stat->invalidXmitWord);
desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
desc->length = cpu_to_be32(sizeof(desc->info));
return sizeof(struct fc_rdp_link_error_status_desc);
}
static uint32_t
lpfc_rdp_res_bbc_desc(struct fc_rdp_bbc_desc *desc, READ_LNK_VAR *stat,
struct lpfc_vport *vport)
{
uint32_t bbCredit;
desc->tag = cpu_to_be32(RDP_BBC_DESC_TAG);
bbCredit = vport->fc_sparam.cmn.bbCreditLsb |
(vport->fc_sparam.cmn.bbCreditMsb << 8);
desc->bbc_info.port_bbc = cpu_to_be32(bbCredit);
if (vport->phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
bbCredit = vport->phba->fc_fabparam.cmn.bbCreditLsb |
(vport->phba->fc_fabparam.cmn.bbCreditMsb << 8);
desc->bbc_info.attached_port_bbc = cpu_to_be32(bbCredit);
} else {
desc->bbc_info.attached_port_bbc = 0;
}
desc->bbc_info.rtt = 0;
desc->length = cpu_to_be32(sizeof(desc->bbc_info));
return sizeof(struct fc_rdp_bbc_desc);
}
static uint32_t
lpfc_rdp_res_oed_temp_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc, uint8_t *page_a2)
{
uint32_t flags = 0;
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
desc->oed_info.hi_alarm = page_a2[SSF_TEMP_HIGH_ALARM];
desc->oed_info.lo_alarm = page_a2[SSF_TEMP_LOW_ALARM];
desc->oed_info.hi_warning = page_a2[SSF_TEMP_HIGH_WARNING];
desc->oed_info.lo_warning = page_a2[SSF_TEMP_LOW_WARNING];
if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
flags |= RDP_OET_HIGH_ALARM;
if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
flags |= RDP_OET_LOW_ALARM;
if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TEMPERATURE)
flags |= RDP_OET_HIGH_WARNING;
if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TEMPERATURE)
flags |= RDP_OET_LOW_WARNING;
flags |= ((0xf & RDP_OED_TEMPERATURE) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
return sizeof(struct fc_rdp_oed_sfp_desc);
}
static uint32_t
lpfc_rdp_res_oed_voltage_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
{
uint32_t flags = 0;
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
desc->oed_info.hi_alarm = page_a2[SSF_VOLTAGE_HIGH_ALARM];
desc->oed_info.lo_alarm = page_a2[SSF_VOLTAGE_LOW_ALARM];
desc->oed_info.hi_warning = page_a2[SSF_VOLTAGE_HIGH_WARNING];
desc->oed_info.lo_warning = page_a2[SSF_VOLTAGE_LOW_WARNING];
if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
flags |= RDP_OET_HIGH_ALARM;
if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_VOLTAGE)
flags |= RDP_OET_LOW_ALARM;
if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_VOLTAGE)
flags |= RDP_OET_HIGH_WARNING;
if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_VOLTAGE)
flags |= RDP_OET_LOW_WARNING;
flags |= ((0xf & RDP_OED_VOLTAGE) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
return sizeof(struct fc_rdp_oed_sfp_desc);
}
static uint32_t
lpfc_rdp_res_oed_txbias_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
{
uint32_t flags = 0;
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
desc->oed_info.hi_alarm = page_a2[SSF_BIAS_HIGH_ALARM];
desc->oed_info.lo_alarm = page_a2[SSF_BIAS_LOW_ALARM];
desc->oed_info.hi_warning = page_a2[SSF_BIAS_HIGH_WARNING];
desc->oed_info.lo_warning = page_a2[SSF_BIAS_LOW_WARNING];
if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXBIAS)
flags |= RDP_OET_HIGH_ALARM;
if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXBIAS)
flags |= RDP_OET_LOW_ALARM;
if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXBIAS)
flags |= RDP_OET_HIGH_WARNING;
if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXBIAS)
flags |= RDP_OET_LOW_WARNING;
flags |= ((0xf & RDP_OED_TXBIAS) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
return sizeof(struct fc_rdp_oed_sfp_desc);
}
static uint32_t
lpfc_rdp_res_oed_txpower_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
{
uint32_t flags = 0;
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
desc->oed_info.hi_alarm = page_a2[SSF_TXPOWER_HIGH_ALARM];
desc->oed_info.lo_alarm = page_a2[SSF_TXPOWER_LOW_ALARM];
desc->oed_info.hi_warning = page_a2[SSF_TXPOWER_HIGH_WARNING];
desc->oed_info.lo_warning = page_a2[SSF_TXPOWER_LOW_WARNING];
if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_TXPOWER)
flags |= RDP_OET_HIGH_ALARM;
if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_TXPOWER)
flags |= RDP_OET_LOW_ALARM;
if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_TXPOWER)
flags |= RDP_OET_HIGH_WARNING;
if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_TXPOWER)
flags |= RDP_OET_LOW_WARNING;
flags |= ((0xf & RDP_OED_TXPOWER) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
return sizeof(struct fc_rdp_oed_sfp_desc);
}
static uint32_t
lpfc_rdp_res_oed_rxpower_desc(struct lpfc_hba *phba,
struct fc_rdp_oed_sfp_desc *desc,
uint8_t *page_a2)
{
uint32_t flags = 0;
desc->tag = cpu_to_be32(RDP_OED_DESC_TAG);
desc->oed_info.hi_alarm = page_a2[SSF_RXPOWER_HIGH_ALARM];
desc->oed_info.lo_alarm = page_a2[SSF_RXPOWER_LOW_ALARM];
desc->oed_info.hi_warning = page_a2[SSF_RXPOWER_HIGH_WARNING];
desc->oed_info.lo_warning = page_a2[SSF_RXPOWER_LOW_WARNING];
if (phba->sfp_alarm & LPFC_TRANSGRESSION_HIGH_RXPOWER)
flags |= RDP_OET_HIGH_ALARM;
if (phba->sfp_alarm & LPFC_TRANSGRESSION_LOW_RXPOWER)
flags |= RDP_OET_LOW_ALARM;
if (phba->sfp_warning & LPFC_TRANSGRESSION_HIGH_RXPOWER)
flags |= RDP_OET_HIGH_WARNING;
if (phba->sfp_warning & LPFC_TRANSGRESSION_LOW_RXPOWER)
flags |= RDP_OET_LOW_WARNING;
flags |= ((0xf & RDP_OED_RXPOWER) << RDP_OED_TYPE_SHIFT);
desc->oed_info.function_flags = cpu_to_be32(flags);
desc->length = cpu_to_be32(sizeof(desc->oed_info));
return sizeof(struct fc_rdp_oed_sfp_desc);
}
static uint32_t
lpfc_rdp_res_opd_desc(struct fc_rdp_opd_sfp_desc *desc,
uint8_t *page_a0, struct lpfc_vport *vport)
{
desc->tag = cpu_to_be32(RDP_OPD_DESC_TAG);
memcpy(desc->opd_info.vendor_name, &page_a0[SSF_VENDOR_NAME], 16);
memcpy(desc->opd_info.model_number, &page_a0[SSF_VENDOR_PN], 16);
memcpy(desc->opd_info.serial_number, &page_a0[SSF_VENDOR_SN], 16);
memcpy(desc->opd_info.revision, &page_a0[SSF_VENDOR_REV], 4);
memcpy(desc->opd_info.date, &page_a0[SSF_DATE_CODE], 8);
desc->length = cpu_to_be32(sizeof(desc->opd_info));
return sizeof(struct fc_rdp_opd_sfp_desc);
}
static uint32_t
lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
{
if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
return 0;
desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
desc->info.CorrectedBlocks =
cpu_to_be32(stat->fecCorrBlkCount);
desc->info.UncorrectableBlocks =
cpu_to_be32(stat->fecUncorrBlkCount);
desc->length = cpu_to_be32(sizeof(desc->info));
return sizeof(struct fc_fec_rdp_desc);
}
static uint32_t
lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
{
uint16_t rdp_cap = 0;
uint16_t rdp_speed;
desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
switch (phba->fc_linkspeed) {
case LPFC_LINK_SPEED_1GHZ:
rdp_speed = RDP_PS_1GB;
break;
case LPFC_LINK_SPEED_2GHZ:
rdp_speed = RDP_PS_2GB;
break;
case LPFC_LINK_SPEED_4GHZ:
rdp_speed = RDP_PS_4GB;
break;
case LPFC_LINK_SPEED_8GHZ:
rdp_speed = RDP_PS_8GB;
break;
case LPFC_LINK_SPEED_10GHZ:
rdp_speed = RDP_PS_10GB;
break;
case LPFC_LINK_SPEED_16GHZ:
rdp_speed = RDP_PS_16GB;
break;
case LPFC_LINK_SPEED_32GHZ:
rdp_speed = RDP_PS_32GB;
break;
case LPFC_LINK_SPEED_64GHZ:
rdp_speed = RDP_PS_64GB;
break;
case LPFC_LINK_SPEED_128GHZ:
rdp_speed = RDP_PS_128GB;
break;
case LPFC_LINK_SPEED_256GHZ:
rdp_speed = RDP_PS_256GB;
break;
default:
rdp_speed = RDP_PS_UNKNOWN;
break;
}
desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
if (phba->lmt & LMT_256Gb)
rdp_cap |= RDP_PS_256GB;
if (phba->lmt & LMT_128Gb)
rdp_cap |= RDP_PS_128GB;
if (phba->lmt & LMT_64Gb)
rdp_cap |= RDP_PS_64GB;
if (phba->lmt & LMT_32Gb)
rdp_cap |= RDP_PS_32GB;
if (phba->lmt & LMT_16Gb)
rdp_cap |= RDP_PS_16GB;
if (phba->lmt & LMT_10Gb)
rdp_cap |= RDP_PS_10GB;
if (phba->lmt & LMT_8Gb)
rdp_cap |= RDP_PS_8GB;
if (phba->lmt & LMT_4Gb)
rdp_cap |= RDP_PS_4GB;
if (phba->lmt & LMT_2Gb)
rdp_cap |= RDP_PS_2GB;
if (phba->lmt & LMT_1Gb)
rdp_cap |= RDP_PS_1GB;
if (rdp_cap == 0)
rdp_cap = RDP_CAP_UNKNOWN;
if (phba->cfg_link_speed != LPFC_USER_LINK_SPEED_AUTO)
rdp_cap |= RDP_CAP_USER_CONFIGURED;
desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
desc->length = cpu_to_be32(sizeof(desc->info));
return sizeof(struct fc_rdp_port_speed_desc);
}
static uint32_t
lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
struct lpfc_vport *vport)
{
desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
memcpy(desc->port_names.wwnn, &vport->fc_nodename,
sizeof(desc->port_names.wwnn));
memcpy(desc->port_names.wwpn, &vport->fc_portname,
sizeof(desc->port_names.wwpn));
desc->length = cpu_to_be32(sizeof(desc->port_names));
return sizeof(struct fc_rdp_port_name_desc);
}
static uint32_t
lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
if (vport->fc_flag & FC_FABRIC) {
memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
sizeof(desc->port_names.wwnn));
memcpy(desc->port_names.wwpn, &vport->fabric_portname,
sizeof(desc->port_names.wwpn));
} else { /* Point to Point */
memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
sizeof(desc->port_names.wwnn));
memcpy(desc->port_names.wwpn, &ndlp->nlp_portname,
sizeof(desc->port_names.wwpn));
}
desc->length = cpu_to_be32(sizeof(desc->port_names));
return sizeof(struct fc_rdp_port_name_desc);
}
static void
lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
int status)
{
struct lpfc_nodelist *ndlp = rdp_context->ndlp;
struct lpfc_vport *vport = ndlp->vport;
struct lpfc_iocbq *elsiocb;
struct ulp_bde64 *bpl;
IOCB_t *icmd;
union lpfc_wqe128 *wqe;
uint8_t *pcmd;
struct ls_rjt *stat;
struct fc_rdp_res_frame *rdp_res;
uint32_t cmdsize, len;
uint16_t *flag_ptr;
int rc;
u32 ulp_context;
if (status != SUCCESS)
goto error;
/* This will change once we know the true size of the RDP payload */
cmdsize = sizeof(struct fc_rdp_res_frame);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
lpfc_max_els_tries, rdp_context->ndlp,
rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
goto free_rdp_context;
ulp_context = get_job_ulpcontext(phba, elsiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* ox-id of the frame */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
rdp_context->ox_id);
bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
rdp_context->rx_id);
} else {
icmd = &elsiocb->iocb;
icmd->ulpContext = rdp_context->rx_id;
icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2171 Xmit RDP response tag x%x xri x%x, "
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
elsiocb->iotag, ulp_context,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi);
rdp_res = (struct fc_rdp_res_frame *)elsiocb->cmd_dmabuf->virt;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
/* Update Alarm and Warning */
flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_ALARM_FLAGS);
phba->sfp_alarm |= *flag_ptr;
flag_ptr = (uint16_t *)(rdp_context->page_a2 + SSF_WARNING_FLAGS);
phba->sfp_warning |= *flag_ptr;
/* For RDP payload */
len = 8;
len += lpfc_rdp_res_link_service((struct fc_rdp_link_service_desc *)
(len + pcmd), ELS_CMD_RDP);
len += lpfc_rdp_res_sfp_desc((struct fc_rdp_sfp_desc *)(len + pcmd),
rdp_context->page_a0, rdp_context->page_a2);
len += lpfc_rdp_res_speed((struct fc_rdp_port_speed_desc *)(len + pcmd),
phba);
len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *)
(len + pcmd), &rdp_context->link_stat);
len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *)
(len + pcmd), vport);
len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *)
(len + pcmd), vport, ndlp);
len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd),
&rdp_context->link_stat);
len += lpfc_rdp_res_bbc_desc((struct fc_rdp_bbc_desc *)(len + pcmd),
&rdp_context->link_stat, vport);
len += lpfc_rdp_res_oed_temp_desc(phba,
(struct fc_rdp_oed_sfp_desc *)(len + pcmd),
rdp_context->page_a2);
len += lpfc_rdp_res_oed_voltage_desc(phba,
(struct fc_rdp_oed_sfp_desc *)(len + pcmd),
rdp_context->page_a2);
len += lpfc_rdp_res_oed_txbias_desc(phba,
(struct fc_rdp_oed_sfp_desc *)(len + pcmd),
rdp_context->page_a2);
len += lpfc_rdp_res_oed_txpower_desc(phba,
(struct fc_rdp_oed_sfp_desc *)(len + pcmd),
rdp_context->page_a2);
len += lpfc_rdp_res_oed_rxpower_desc(phba,
(struct fc_rdp_oed_sfp_desc *)(len + pcmd),
rdp_context->page_a2);
len += lpfc_rdp_res_opd_desc((struct fc_rdp_opd_sfp_desc *)(len + pcmd),
rdp_context->page_a0, vport);
rdp_res->length = cpu_to_be32(len - 8);
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
/* Now that we know the true size of the payload, update the BPL */
bpl = (struct ulp_bde64 *)elsiocb->bpl_dmabuf->virt;
bpl->tus.f.bdeSize = len;
bpl->tus.f.bdeFlags = 0;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
phba->fc_stat.elsXmitACC++;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
goto free_rdp_context;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
}
goto free_rdp_context;
error:
cmdsize = 2 * sizeof(uint32_t);
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
if (!elsiocb)
goto free_rdp_context;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* ox-id of the frame */
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
rdp_context->ox_id);
bf_set(wqe_ctxt_tag,
&wqe->xmit_els_rsp.wqe_com,
rdp_context->rx_id);
} else {
icmd = &elsiocb->iocb;
icmd->ulpContext = rdp_context->rx_id;
icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
}
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
phba->fc_stat.elsXmitLSRJT++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
goto free_rdp_context;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
}
free_rdp_context:
/* This reference put is for the original unsolicited RDP. If the
* prep failed, there is no reference to remove.
*/
lpfc_nlp_put(ndlp);
kfree(rdp_context);
}
static int
lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
{
LPFC_MBOXQ_t *mbox = NULL;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
"7105 failed to allocate mailbox memory");
return 1;
}
if (lpfc_sli4_dump_page_a0(phba, mbox))
goto rdp_fail;
mbox->vport = rdp_context->ndlp->vport;
mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
return 1;
}
return 0;
rdp_fail:
mempool_free(mbox, phba->mbox_mem_pool);
return 1;
}
int lpfc_get_sfp_info_wait(struct lpfc_hba *phba,
struct lpfc_rdp_context *rdp_context)
{
LPFC_MBOXQ_t *mbox = NULL;
int rc;
struct lpfc_dmabuf *mp;
struct lpfc_dmabuf *mpsave;
void *virt;
MAILBOX_t *mb;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
"7205 failed to allocate mailbox memory");
return 1;
}
if (lpfc_sli4_dump_page_a0(phba, mbox))
goto sfp_fail;
mp = mbox->ctx_buf;
mpsave = mp;
virt = mp->virt;
if (phba->sli_rev < LPFC_SLI_REV4) {
mb = &mbox->u.mb;
mb->un.varDmp.cv = 1;
mb->un.varDmp.co = 1;
mb->un.varWords[2] = 0;
mb->un.varWords[3] = DMP_SFF_PAGE_A0_SIZE / 4;
mb->un.varWords[4] = 0;
mb->un.varWords[5] = 0;
mb->un.varWords[6] = 0;
mb->un.varWords[7] = 0;
mb->un.varWords[8] = 0;
mb->un.varWords[9] = 0;
mb->un.varWords[10] = 0;
mbox->in_ext_byte_len = DMP_SFF_PAGE_A0_SIZE;
mbox->out_ext_byte_len = DMP_SFF_PAGE_A0_SIZE;
mbox->mbox_offset_word = 5;
mbox->ctx_buf = virt;
} else {
bf_set(lpfc_mbx_memory_dump_type3_length,
&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE);
mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
}
mbox->vport = phba->pport;
mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30);
if (rc == MBX_NOT_FINISHED) {
rc = 1;
goto error;
}
if (phba->sli_rev == LPFC_SLI_REV4)
mp = (struct lpfc_dmabuf *)(mbox->ctx_buf);
else
mp = mpsave;
if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) {
rc = 1;
goto error;
}
lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0,
DMP_SFF_PAGE_A0_SIZE);
memset(mbox, 0, sizeof(*mbox));
memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE);
INIT_LIST_HEAD(&mp->list);
/* save address for completion */
mbox->ctx_buf = mp;
mbox->vport = phba->pport;
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
bf_set(lpfc_mbx_memory_dump_type3_type,
&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
bf_set(lpfc_mbx_memory_dump_type3_link,
&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
bf_set(lpfc_mbx_memory_dump_type3_page_no,
&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2);
if (phba->sli_rev < LPFC_SLI_REV4) {
mb = &mbox->u.mb;
mb->un.varDmp.cv = 1;
mb->un.varDmp.co = 1;
mb->un.varWords[2] = 0;
mb->un.varWords[3] = DMP_SFF_PAGE_A2_SIZE / 4;
mb->un.varWords[4] = 0;
mb->un.varWords[5] = 0;
mb->un.varWords[6] = 0;
mb->un.varWords[7] = 0;
mb->un.varWords[8] = 0;
mb->un.varWords[9] = 0;
mb->un.varWords[10] = 0;
mbox->in_ext_byte_len = DMP_SFF_PAGE_A2_SIZE;
mbox->out_ext_byte_len = DMP_SFF_PAGE_A2_SIZE;
mbox->mbox_offset_word = 5;
mbox->ctx_buf = virt;
} else {
bf_set(lpfc_mbx_memory_dump_type3_length,
&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE);
mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
}
mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
rc = lpfc_sli_issue_mbox_wait(phba, mbox, 30);
if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) {
rc = 1;
goto error;
}
rc = 0;
lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2,
DMP_SFF_PAGE_A2_SIZE);
error:
mbox->ctx_buf = mpsave;
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
return rc;
sfp_fail:
mempool_free(mbox, phba->mbox_mem_pool);
return 1;
}
/*
* lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes an unsolicited RDP(Read Diagnostic Parameters)
* IOCB. First, the payload of the unsolicited RDP is checked.
* Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
* for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
* (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
* gather all data and send RDP response.
*
* Return code
* 0 - Sent the acc response
* 1 - Sent the reject response.
*/
static int
lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
struct fc_rdp_req_frame *rdp_req;
struct lpfc_rdp_context *rdp_context;
union lpfc_wqe128 *cmd = NULL;
struct ls_rjt stat;
if (phba->sli_rev < LPFC_SLI_REV4 ||
bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_expl = LSEXP_REQ_UNSUPPORTED;
goto error;
}
if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_expl = LSEXP_REQ_UNSUPPORTED;
goto error;
}
pcmd = cmdiocb->cmd_dmabuf;
rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2422 ELS RDP Request "
"dec len %d tag x%x port_id %d len %d\n",
be32_to_cpu(rdp_req->rdp_des_length),
be32_to_cpu(rdp_req->nport_id_desc.tag),
be32_to_cpu(rdp_req->nport_id_desc.nport_id),
be32_to_cpu(rdp_req->nport_id_desc.length));
if (sizeof(struct fc_rdp_nport_desc) !=
be32_to_cpu(rdp_req->rdp_des_length))
goto rjt_logerr;
if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
goto rjt_logerr;
if (RDP_NPORT_ID_SIZE !=
be32_to_cpu(rdp_req->nport_id_desc.length))
goto rjt_logerr;
rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
if (!rdp_context) {
rjt_err = LSRJT_UNABLE_TPC;
goto error;
}
cmd = &cmdiocb->wqe;
rdp_context->ndlp = lpfc_nlp_get(ndlp);
if (!rdp_context->ndlp) {
kfree(rdp_context);
rjt_err = LSRJT_UNABLE_TPC;
goto error;
}
rdp_context->ox_id = bf_get(wqe_rcvoxid,
&cmd->xmit_els_rsp.wqe_com);
rdp_context->rx_id = bf_get(wqe_ctxt_tag,
&cmd->xmit_els_rsp.wqe_com);
rdp_context->cmpl = lpfc_els_rdp_cmpl;
if (lpfc_get_rdp_info(phba, rdp_context)) {
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
"2423 Unable to send mailbox");
kfree(rdp_context);
rjt_err = LSRJT_UNABLE_TPC;
lpfc_nlp_put(ndlp);
goto error;
}
return 0;
rjt_logerr:
rjt_err = LSRJT_LOGICAL_ERR;
error:
memset(&stat, 0, sizeof(stat));
stat.un.b.lsRjtRsnCode = rjt_err;
stat.un.b.lsRjtRsnCodeExp = rjt_expl;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 1;
}
static void
lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb;
IOCB_t *icmd;
union lpfc_wqe128 *wqe;
uint8_t *pcmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_nodelist *ndlp;
struct ls_rjt *stat;
union lpfc_sli4_cfg_shdr *shdr;
struct lpfc_lcb_context *lcb_context;
struct fc_lcb_res_frame *lcb_res;
uint32_t cmdsize, shdr_status, shdr_add_status;
int rc;
mb = &pmb->u.mb;
lcb_context = (struct lpfc_lcb_context *)pmb->ctx_ndlp;
ndlp = lcb_context->ndlp;
pmb->ctx_ndlp = NULL;
pmb->ctx_buf = NULL;
shdr = (union lpfc_sli4_cfg_shdr *)
&pmb->u.mqe.un.beacon_config.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
"0194 SET_BEACON_CONFIG mailbox "
"completed with status x%x add_status x%x,"
" mbx status x%x\n",
shdr_status, shdr_add_status, mb->mbxStatus);
if ((mb->mbxStatus != MBX_SUCCESS) || shdr_status ||
(shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE) ||
(shdr_add_status == ADD_STATUS_INVALID_REQUEST)) {
mempool_free(pmb, phba->mbox_mem_pool);
goto error;
}
mempool_free(pmb, phba->mbox_mem_pool);
cmdsize = sizeof(struct fc_lcb_res_frame);
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
lpfc_max_els_tries, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
/* Decrement the ndlp reference count from previous mbox command */
lpfc_nlp_put(ndlp);
if (!elsiocb)
goto free_lcb_context;
lcb_res = (struct fc_lcb_res_frame *)elsiocb->cmd_dmabuf->virt;
memset(lcb_res, 0, sizeof(struct fc_lcb_res_frame));
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id);
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
lcb_context->ox_id);
} else {
icmd = &elsiocb->iocb;
icmd->ulpContext = lcb_context->rx_id;
icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
}
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *)(pcmd)) = ELS_CMD_ACC;
lcb_res->lcb_sub_command = lcb_context->sub_command;
lcb_res->lcb_type = lcb_context->type;
lcb_res->capability = lcb_context->capability;
lcb_res->lcb_frequency = lcb_context->frequency;
lcb_res->lcb_duration = lcb_context->duration;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
phba->fc_stat.elsXmitACC++;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
goto out;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
}
out:
kfree(lcb_context);
return;
error:
cmdsize = sizeof(struct fc_lcb_res_frame);
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
lpfc_max_els_tries, ndlp,
ndlp->nlp_DID, ELS_CMD_LS_RJT);
lpfc_nlp_put(ndlp);
if (!elsiocb)
goto free_lcb_context;
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, lcb_context->rx_id);
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
lcb_context->ox_id);
} else {
icmd = &elsiocb->iocb;
icmd->ulpContext = lcb_context->rx_id;
icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
}
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)
stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
phba->fc_stat.elsXmitLSRJT++;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
goto free_lcb_context;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
}
free_lcb_context:
kfree(lcb_context);
}
static int
lpfc_sli4_set_beacon(struct lpfc_vport *vport,
struct lpfc_lcb_context *lcb_context,
uint32_t beacon_state)
{
struct lpfc_hba *phba = vport->phba;
union lpfc_sli4_cfg_shdr *cfg_shdr;
LPFC_MBOXQ_t *mbox = NULL;
uint32_t len;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return 1;
cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
len = sizeof(struct lpfc_mbx_set_beacon_config) -
sizeof(struct lpfc_sli4_cfg_mhdr);
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
LPFC_SLI4_MBX_EMBED);
mbox->ctx_ndlp = (void *)lcb_context;
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_els_lcb_rsp;
bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
phba->sli4_hba.physical_port);
bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
beacon_state);
mbox->u.mqe.un.beacon_config.word5 = 0; /* Reserved */
/*
* Check bv1s bit before issuing the mailbox
* if bv1s == 1, LCB V1 supported
* else, LCB V0 supported
*/
if (phba->sli4_hba.pc_sli4_params.bv1s) {
/* COMMON_SET_BEACON_CONFIG_V1 */
cfg_shdr->request.word9 = BEACON_VERSION_V1;
lcb_context->capability |= LCB_CAPABILITY_DURATION;
bf_set(lpfc_mbx_set_beacon_port_type,
&mbox->u.mqe.un.beacon_config, 0);
bf_set(lpfc_mbx_set_beacon_duration_v1,
&mbox->u.mqe.un.beacon_config,
be16_to_cpu(lcb_context->duration));
} else {
/* COMMON_SET_BEACON_CONFIG_V0 */
if (be16_to_cpu(lcb_context->duration) != 0) {
mempool_free(mbox, phba->mbox_mem_pool);
return 1;
}
cfg_shdr->request.word9 = BEACON_VERSION_V0;
lcb_context->capability &= ~(LCB_CAPABILITY_DURATION);
bf_set(lpfc_mbx_set_beacon_state,
&mbox->u.mqe.un.beacon_config, beacon_state);
bf_set(lpfc_mbx_set_beacon_port_type,
&mbox->u.mqe.un.beacon_config, 1);
bf_set(lpfc_mbx_set_beacon_duration,
&mbox->u.mqe.un.beacon_config,
be16_to_cpu(lcb_context->duration));
}
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
return 1;
}
return 0;
}
/**
* lpfc_els_rcv_lcb - Process an unsolicited LCB
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
* First, the payload of the unsolicited LCB is checked.
* Then based on Subcommand beacon will either turn on or off.
*
* Return code
* 0 - Sent the acc response
* 1 - Sent the reject response.
**/
static int
lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
uint8_t *lp;
struct fc_lcb_request_frame *beacon;
struct lpfc_lcb_context *lcb_context;
u8 state, rjt_err = 0;
struct ls_rjt stat;
pcmd = cmdiocb->cmd_dmabuf;
lp = (uint8_t *)pcmd->virt;
beacon = (struct fc_lcb_request_frame *)pcmd->virt;
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
"type x%x frequency %x duration x%x\n",
lp[0], lp[1], lp[2],
beacon->lcb_command,
beacon->lcb_sub_command,
beacon->lcb_type,
beacon->lcb_frequency,
be16_to_cpu(beacon->lcb_duration));
if (beacon->lcb_sub_command != LPFC_LCB_ON &&
beacon->lcb_sub_command != LPFC_LCB_OFF) {
rjt_err = LSRJT_CMD_UNSUPPORTED;
goto rjt;
}
if (phba->sli_rev < LPFC_SLI_REV4 ||
phba->hba_flag & HBA_FCOE_MODE ||
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2)) {
rjt_err = LSRJT_CMD_UNSUPPORTED;
goto rjt;
}
lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
if (!lcb_context) {
rjt_err = LSRJT_UNABLE_TPC;
goto rjt;
}
state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
lcb_context->sub_command = beacon->lcb_sub_command;
lcb_context->capability = 0;
lcb_context->type = beacon->lcb_type;
lcb_context->frequency = beacon->lcb_frequency;
lcb_context->duration = beacon->lcb_duration;
lcb_context->ox_id = get_job_rcvoxid(phba, cmdiocb);
lcb_context->rx_id = get_job_ulpcontext(phba, cmdiocb);
lcb_context->ndlp = lpfc_nlp_get(ndlp);
if (!lcb_context->ndlp) {
rjt_err = LSRJT_UNABLE_TPC;
goto rjt_free;
}
if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
lpfc_printf_vlog(ndlp->vport, KERN_ERR, LOG_TRACE_EVENT,
"0193 failed to send mail box");
lpfc_nlp_put(ndlp);
rjt_err = LSRJT_UNABLE_TPC;
goto rjt_free;
}
return 0;
rjt_free:
kfree(lcb_context);
rjt:
memset(&stat, 0, sizeof(stat));
stat.un.b.lsRjtRsnCode = rjt_err;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 1;
}
/**
* lpfc_els_flush_rscn - Clean up any rscn activities with a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine cleans up any Registration State Change Notification
* (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
* @vport together with the host_lock is used to prevent multiple thread
* trying to access the RSCN array on a same @vport at the same time.
**/
void
lpfc_els_flush_rscn(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
int i;
spin_lock_irq(shost->host_lock);
if (vport->fc_rscn_flush) {
/* Another thread is walking fc_rscn_id_list on this vport */
spin_unlock_irq(shost->host_lock);
return;
}
/* Indicate we are walking lpfc_els_flush_rscn on this vport */
vport->fc_rscn_flush = 1;
spin_unlock_irq(shost->host_lock);
for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
vport->fc_rscn_id_list[i] = NULL;
}
spin_lock_irq(shost->host_lock);
vport->fc_rscn_id_cnt = 0;
vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
/* Indicate we are done walking this fc_rscn_id_list */
vport->fc_rscn_flush = 0;
}
/**
* lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
* @vport: pointer to a host virtual N_Port data structure.
* @did: remote destination port identifier.
*
* This routine checks whether there is any pending Registration State
* Configuration Notification (RSCN) to a @did on @vport.
*
* Return code
* None zero - The @did matched with a pending rscn
* 0 - not able to match @did with a pending rscn
**/
int
lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
{
D_ID ns_did;
D_ID rscn_did;
uint32_t *lp;
uint32_t payload_len, i;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
ns_did.un.word = did;
/* Never match fabric nodes for RSCNs */
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
return 0;
/* If we are doing a FULL RSCN rediscovery, match everything */
if (vport->fc_flag & FC_RSCN_DISCOVERY)
return did;
spin_lock_irq(shost->host_lock);
if (vport->fc_rscn_flush) {
/* Another thread is walking fc_rscn_id_list on this vport */
spin_unlock_irq(shost->host_lock);
return 0;
}
/* Indicate we are walking fc_rscn_id_list on this vport */
vport->fc_rscn_flush = 1;
spin_unlock_irq(shost->host_lock);
for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
lp = vport->fc_rscn_id_list[i]->virt;
payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
payload_len -= sizeof(uint32_t); /* take off word 0 */
while (payload_len) {
rscn_did.un.word = be32_to_cpu(*lp++);
payload_len -= sizeof(uint32_t);
switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
case RSCN_ADDRESS_FORMAT_PORT:
if ((ns_did.un.b.domain == rscn_did.un.b.domain)
&& (ns_did.un.b.area == rscn_did.un.b.area)
&& (ns_did.un.b.id == rscn_did.un.b.id))
goto return_did_out;
break;
case RSCN_ADDRESS_FORMAT_AREA:
if ((ns_did.un.b.domain == rscn_did.un.b.domain)
&& (ns_did.un.b.area == rscn_did.un.b.area))
goto return_did_out;
break;
case RSCN_ADDRESS_FORMAT_DOMAIN:
if (ns_did.un.b.domain == rscn_did.un.b.domain)
goto return_did_out;
break;
case RSCN_ADDRESS_FORMAT_FABRIC:
goto return_did_out;
}
}
}
/* Indicate we are done with walking fc_rscn_id_list on this vport */
vport->fc_rscn_flush = 0;
return 0;
return_did_out:
/* Indicate we are done with walking fc_rscn_id_list on this vport */
vport->fc_rscn_flush = 0;
return did;
}
/**
* lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
* state machine for a @vport's nodes that are with pending RSCN (Registration
* State Change Notification).
*
* Return code
* 0 - Successful (currently alway return 0)
**/
static int
lpfc_rscn_recovery_check(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp = NULL, *n;
/* Move all affected nodes by pending RSCNs to NPR state. */
list_for_each_entry_safe(ndlp, n, &vport->fc_nodes, nlp_listp) {
if ((ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
!lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
continue;
/* NVME Target mode does not do RSCN Recovery. */
if (vport->phba->nvmet_support)
continue;
/* If we are in the process of doing discovery on this
* NPort, let it continue on its own.
*/
switch (ndlp->nlp_state) {
case NLP_STE_PLOGI_ISSUE:
case NLP_STE_ADISC_ISSUE:
case NLP_STE_REG_LOGIN_ISSUE:
case NLP_STE_PRLI_ISSUE:
case NLP_STE_LOGO_ISSUE:
continue;
}
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RECOVERY);
lpfc_cancel_retry_delay_tmo(vport, ndlp);
}
return 0;
}
/**
* lpfc_send_rscn_event - Send an RSCN event to management application
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
*
* lpfc_send_rscn_event sends an RSCN netlink event to management
* applications.
*/
static void
lpfc_send_rscn_event(struct lpfc_vport *vport,
struct lpfc_iocbq *cmdiocb)
{
struct lpfc_dmabuf *pcmd;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
uint32_t *payload_ptr;
uint32_t payload_len;
struct lpfc_rscn_event_header *rscn_event_data;
pcmd = cmdiocb->cmd_dmabuf;
payload_ptr = (uint32_t *) pcmd->virt;
payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
payload_len, GFP_KERNEL);
if (!rscn_event_data) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0147 Failed to allocate memory for RSCN event\n");
return;
}
rscn_event_data->event_type = FC_REG_RSCN_EVENT;
rscn_event_data->payload_length = payload_len;
memcpy(rscn_event_data->rscn_payload, payload_ptr,
payload_len);
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(struct lpfc_rscn_event_header) + payload_len,
(char *)rscn_event_data,
LPFC_NL_VENDOR_ID);
kfree(rscn_event_data);
}
/**
* lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes an unsolicited RSCN (Registration State Change
* Notification) IOCB. First, the payload of the unsolicited RSCN is walked
* to invoke fc_host_post_event() routine to the FC transport layer. If the
* discover state machine is about to begin discovery, it just accepts the
* RSCN and the discovery process will satisfy the RSCN. If this RSCN only
* contains N_Port IDs for other vports on this HBA, it just accepts the
* RSCN and ignore processing it. If the state machine is in the recovery
* state, the fc_rscn_id_list of this @vport is walked and the
* lpfc_rscn_recovery_check() routine is invoked to send recovery event for
* all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
* routine is invoked to handle the RSCN event.
*
* Return code
* 0 - Just sent the acc response
* 1 - Sent the acc response and waited for name server completion
**/
static int
lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
uint32_t *lp, *datap;
uint32_t payload_len, length, nportid, *cmd;
int rscn_cnt;
int rscn_id = 0, hba_id = 0;
int i, tmo;
pcmd = cmdiocb->cmd_dmabuf;
lp = (uint32_t *) pcmd->virt;
payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
payload_len -= sizeof(uint32_t); /* take off word 0 */
/* RSCN received */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0214 RSCN received Data: x%x x%x x%x x%x\n",
vport->fc_flag, payload_len, *lp,
vport->fc_rscn_id_cnt);
/* Send an RSCN event to the management application */
lpfc_send_rscn_event(vport, cmdiocb);
for (i = 0; i < payload_len/sizeof(uint32_t); i++)
fc_host_post_event(shost, fc_get_event_number(),
FCH_EVT_RSCN, lp[i]);
/* Check if RSCN is coming from a direct-connected remote NPort */
if (vport->fc_flag & FC_PT2PT) {
/* If so, just ACC it, no other action needed for now */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2024 pt2pt RSCN %08x Data: x%x x%x\n",
*lp, vport->fc_flag, payload_len);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
/* Check to see if we need to NVME rescan this target
* remoteport.
*/
if (ndlp->nlp_fc4_type & NLP_FC4_NVME &&
ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY))
lpfc_nvme_rescan_port(vport, ndlp);
return 0;
}
/* If we are about to begin discovery, just ACC the RSCN.
* Discovery processing will satisfy it.
*/
if (vport->port_state <= LPFC_NS_QRY) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
return 0;
}
/* If this RSCN just contains NPortIDs for other vports on this HBA,
* just ACC and ignore it.
*/
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
!(vport->cfg_peer_port_login)) {
i = payload_len;
datap = lp;
while (i > 0) {
nportid = *datap++;
nportid = ((be32_to_cpu(nportid)) & Mask_DID);
i -= sizeof(uint32_t);
rscn_id++;
if (lpfc_find_vport_by_did(phba, nportid))
hba_id++;
}
if (rscn_id == hba_id) {
/* ALL NPortIDs in RSCN are on HBA */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0219 Ignore RSCN "
"Data: x%x x%x x%x x%x\n",
vport->fc_flag, payload_len,
*lp, vport->fc_rscn_id_cnt);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
ndlp->nlp_DID, vport->port_state,
ndlp->nlp_flag);
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
ndlp, NULL);
/* Restart disctmo if its already running */
if (vport->fc_flag & FC_DISC_TMO) {
tmo = ((phba->fc_ratov * 3) + 3);
mod_timer(&vport->fc_disctmo,
jiffies +
msecs_to_jiffies(1000 * tmo));
}
return 0;
}
}
spin_lock_irq(shost->host_lock);
if (vport->fc_rscn_flush) {
/* Another thread is walking fc_rscn_id_list on this vport */
vport->fc_flag |= FC_RSCN_DISCOVERY;
spin_unlock_irq(shost->host_lock);
/* Send back ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
return 0;
}
/* Indicate we are walking fc_rscn_id_list on this vport */
vport->fc_rscn_flush = 1;
spin_unlock_irq(shost->host_lock);
/* Get the array count after successfully have the token */
rscn_cnt = vport->fc_rscn_id_cnt;
/* If we are already processing an RSCN, save the received
* RSCN payload buffer, cmdiocb->cmd_dmabuf to process later.
*/
if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_DEFERRED;
/* Restart disctmo if its already running */
if (vport->fc_flag & FC_DISC_TMO) {
tmo = ((phba->fc_ratov * 3) + 3);
mod_timer(&vport->fc_disctmo,
jiffies + msecs_to_jiffies(1000 * tmo));
}
if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
!(vport->fc_flag & FC_RSCN_DISCOVERY)) {
vport->fc_flag |= FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
if (rscn_cnt) {
cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
}
if ((rscn_cnt) &&
(payload_len + length <= LPFC_BPL_SIZE)) {
*cmd &= ELS_CMD_MASK;
*cmd |= cpu_to_be32(payload_len + length);
memcpy(((uint8_t *)cmd) + length, lp,
payload_len);
} else {
vport->fc_rscn_id_list[rscn_cnt] = pcmd;
vport->fc_rscn_id_cnt++;
/* If we zero, cmdiocb->cmd_dmabuf, the calling
* routine will not try to free it.
*/
cmdiocb->cmd_dmabuf = NULL;
}
/* Deferred RSCN */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0235 Deferred RSCN "
"Data: x%x x%x x%x\n",
vport->fc_rscn_id_cnt, vport->fc_flag,
vport->port_state);
} else {
vport->fc_flag |= FC_RSCN_DISCOVERY;
spin_unlock_irq(shost->host_lock);
/* ReDiscovery RSCN */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0234 ReDiscovery RSCN "
"Data: x%x x%x x%x\n",
vport->fc_rscn_id_cnt, vport->fc_flag,
vport->port_state);
}
/* Indicate we are done walking fc_rscn_id_list on this vport */
vport->fc_rscn_flush = 0;
/* Send back ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
/* send RECOVERY event for ALL nodes that match RSCN payload */
lpfc_rscn_recovery_check(vport);
return 0;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RSCN: did:x%x/ste:x%x flg:x%x",
ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
/* Indicate we are done walking fc_rscn_id_list on this vport */
vport->fc_rscn_flush = 0;
/*
* If we zero, cmdiocb->cmd_dmabuf, the calling routine will
* not try to free it.
*/
cmdiocb->cmd_dmabuf = NULL;
lpfc_set_disctmo(vport);
/* Send back ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
/* send RECOVERY event for ALL nodes that match RSCN payload */
lpfc_rscn_recovery_check(vport);
return lpfc_els_handle_rscn(vport);
}
/**
* lpfc_els_handle_rscn - Handle rscn for a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine handles the Registration State Configuration Notification
* (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
* be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
* if the ndlp to NameServer exists, a Common Transport (CT) command to the
* NameServer shall be issued. If CT command to the NameServer fails to be
* issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
* RSCN activities with the @vport.
*
* Return code
* 0 - Cleaned up rscn on the @vport
* 1 - Wait for plogi to name server before proceed
**/
int
lpfc_els_handle_rscn(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
struct lpfc_hba *phba = vport->phba;
/* Ignore RSCN if the port is being torn down. */
if (vport->load_flag & FC_UNLOADING) {
lpfc_els_flush_rscn(vport);
return 0;
}
/* Start timer for RSCN processing */
lpfc_set_disctmo(vport);
/* RSCN processed */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0215 RSCN processed Data: x%x x%x x%x x%x x%x x%x\n",
vport->fc_flag, 0, vport->fc_rscn_id_cnt,
vport->port_state, vport->num_disc_nodes,
vport->gidft_inp);
/* To process RSCN, first compare RSCN data with NameServer */
vport->fc_ns_retry = 0;
vport->num_disc_nodes = 0;
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
/* Good ndlp, issue CT Request to NameServer. Need to
* know how many gidfts were issued. If none, then just
* flush the RSCN. Otherwise, the outstanding requests
* need to complete.
*/
if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) {
if (lpfc_issue_gidft(vport) > 0)
return 1;
} else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) {
if (lpfc_issue_gidpt(vport) > 0)
return 1;
} else {
return 1;
}
} else {
/* Nameserver login in question. Revalidate. */
if (ndlp) {
ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
} else {
ndlp = lpfc_nlp_init(vport, NameServer_DID);
if (!ndlp) {
lpfc_els_flush_rscn(vport);
return 0;
}
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
}
ndlp->nlp_type |= NLP_FABRIC;
lpfc_issue_els_plogi(vport, NameServer_DID, 0);
/* Wait for NameServer login cmpl before we can
* continue
*/
return 1;
}
lpfc_els_flush_rscn(vport);
return 0;
}
/**
* lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes Fabric Login (FLOGI) IOCB received as an ELS
* unsolicited event. An unsolicited FLOGI can be received in a point-to-
* point topology. As an unsolicited FLOGI should not be received in a loop
* mode, any unsolicited FLOGI received in loop mode shall be ignored. The
* lpfc_check_sparm() routine is invoked to check the parameters in the
* unsolicited FLOGI. If parameters validation failed, the routine
* lpfc_els_rsp_reject() shall be called with reject reason code set to
* LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
* FLOGI shall be compared with the Port WWN of the @vport to determine who
* will initiate PLOGI. The higher lexicographical value party shall has
* higher priority (as the winning port) and will initiate PLOGI and
* communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
* of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
* and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
*
* Return code
* 0 - Successfully processed the unsolicited flogi
* 1 - Failed to process the unsolicited flogi
**/
static int
lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf;
uint32_t *lp = (uint32_t *) pcmd->virt;
union lpfc_wqe128 *wqe = &cmdiocb->wqe;
struct serv_parm *sp;
LPFC_MBOXQ_t *mbox;
uint32_t cmd, did;
int rc;
uint32_t fc_flag = 0;
uint32_t port_state = 0;
/* Clear external loopback plug detected flag */
phba->link_flag &= ~LS_EXTERNAL_LOOPBACK;
cmd = *lp++;
sp = (struct serv_parm *) lp;
/* FLOGI received */
lpfc_set_disctmo(vport);
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
/* We should never receive a FLOGI in loop mode, ignore it */
did = bf_get(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest);
/* An FLOGI ELS command <elsCmd> was received from DID <did> in
Loop Mode */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0113 An FLOGI ELS command x%x was "
"received from DID x%x in Loop Mode\n",
cmd, did);
return 1;
}
(void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
/*
* If our portname is greater than the remote portname,
* then we initiate Nport login.
*/
rc = memcmp(&vport->fc_portname, &sp->portName,
sizeof(struct lpfc_name));
if (!rc) {
if (phba->sli_rev < LPFC_SLI_REV4) {
mbox = mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!mbox)
return 1;
lpfc_linkdown(phba);
lpfc_init_link(phba, mbox,
phba->cfg_topology,
phba->cfg_link_speed);
mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox,
MBX_NOWAIT);
lpfc_set_loopback_flag(phba);
if (rc == MBX_NOT_FINISHED)
mempool_free(mbox, phba->mbox_mem_pool);
return 1;
}
/* External loopback plug insertion detected */
phba->link_flag |= LS_EXTERNAL_LOOPBACK;
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_LIBDFC,
"1119 External Loopback plug detected\n");
/* abort the flogi coming back to ourselves
* due to external loopback on the port.
*/
lpfc_els_abort_flogi(phba);
return 0;
} else if (rc > 0) { /* greater than */
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_PT2PT_PLOGI;
spin_unlock_irq(shost->host_lock);
/* If we have the high WWPN we can assign our own
* myDID; otherwise, we have to WAIT for a PLOGI
* from the remote NPort to find out what it
* will be.
*/
vport->fc_myDID = PT2PT_LocalID;
} else {
vport->fc_myDID = PT2PT_RemoteID;
}
/*
* The vport state should go to LPFC_FLOGI only
* AFTER we issue a FLOGI, not receive one.
*/
spin_lock_irq(shost->host_lock);
fc_flag = vport->fc_flag;
port_state = vport->port_state;
vport->fc_flag |= FC_PT2PT;
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
/* Acking an unsol FLOGI. Count 1 for link bounce
* work-around.
*/
vport->rcv_flogi_cnt++;
spin_unlock_irq(shost->host_lock);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3311 Rcv Flogi PS x%x new PS x%x "
"fc_flag x%x new fc_flag x%x\n",
port_state, vport->port_state,
fc_flag, vport->fc_flag);
/*
* We temporarily set fc_myDID to make it look like we are
* a Fabric. This is done just so we end up with the right
* did / sid on the FLOGI ACC rsp.
*/
did = vport->fc_myDID;
vport->fc_myDID = Fabric_DID;
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
/* Defer ACC response until AFTER we issue a FLOGI */
if (!(phba->hba_flag & HBA_FLOGI_ISSUED)) {
phba->defer_flogi_acc_rx_id = bf_get(wqe_ctxt_tag,
&wqe->xmit_els_rsp.wqe_com);
phba->defer_flogi_acc_ox_id = bf_get(wqe_rcvoxid,
&wqe->xmit_els_rsp.wqe_com);
vport->fc_myDID = did;
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3344 Deferring FLOGI ACC: rx_id: x%x,"
" ox_id: x%x, hba_flag x%x\n",
phba->defer_flogi_acc_rx_id,
phba->defer_flogi_acc_ox_id, phba->hba_flag);
phba->defer_flogi_acc_flag = true;
return 0;
}
/* Send back ACC */
lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
/* Now lets put fc_myDID back to what its supposed to be */
vport->fc_myDID = did;
return 0;
}
/**
* lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes Request Node Identification Data (RNID) IOCB
* received as an ELS unsolicited event. Only when the RNID specified format
* 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
* present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
* Accept (ACC) the RNID ELS command. All the other RNID formats are
* rejected by invoking the lpfc_els_rsp_reject() routine.
*
* Return code
* 0 - Successfully processed rnid iocb (currently always return 0)
**/
static int
lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
RNID *rn;
struct ls_rjt stat;
pcmd = cmdiocb->cmd_dmabuf;
lp = (uint32_t *) pcmd->virt;
lp++;
rn = (RNID *) lp;
/* RNID received */
switch (rn->Format) {
case 0:
case RNID_TOPOLOGY_DISC:
/* Send back ACC */
lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
break;
default:
/* Reject this request because format not supported */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
}
return 0;
}
/**
* lpfc_els_rcv_echo - Process an unsolicited echo iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* Return code
* 0 - Successfully processed echo iocb (currently always return 0)
**/
static int
lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
uint8_t *pcmd;
pcmd = (uint8_t *)cmdiocb->cmd_dmabuf->virt;
/* skip over first word of echo command to find echo data */
pcmd += sizeof(uint32_t);
lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
return 0;
}
/**
* lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes a Link Incident Report Registration(LIRR) IOCB
* received as an ELS unsolicited event. Currently, this function just invokes
* the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
*
* Return code
* 0 - Successfully processed lirr iocb (currently always return 0)
**/
static int
lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct ls_rjt stat;
/* For now, unconditionally reject this command */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 0;
}
/**
* lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
* received as an ELS unsolicited event. A request to RRQ shall only
* be accepted if the Originator Nx_Port N_Port_ID or the Responder
* Nx_Port N_Port_ID of the target Exchange is the same as the
* N_Port_ID of the Nx_Port that makes the request. If the RRQ is
* not accepted, an LS_RJT with reason code "Unable to perform
* command request" and reason code explanation "Invalid Originator
* S_ID" shall be returned. For now, we just unconditionally accept
* RRQ from the target.
**/
static void
lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
if (vport->phba->sli_rev == LPFC_SLI_REV4)
lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
}
/**
* lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* This routine is the completion callback function for the MBX_READ_LNK_STAT
* mailbox command. This callback function is to actually send the Accept
* (ACC) response to a Read Link Status (RLS) unsolicited IOCB event. It
* collects the link statistics from the completion of the MBX_READ_LNK_STAT
* mailbox command, constructs the RLS response with the link statistics
* collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
* response to the RLS.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the RLS Accept Response
* ELS IOCB command.
*
**/
static void
lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
int rc = 0;
MAILBOX_t *mb;
IOCB_t *icmd;
union lpfc_wqe128 *wqe;
struct RLS_RSP *rls_rsp;
uint8_t *pcmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_nodelist *ndlp;
uint16_t oxid;
uint16_t rxid;
uint32_t cmdsize;
u32 ulp_context;
mb = &pmb->u.mb;
ndlp = pmb->ctx_ndlp;
rxid = (uint16_t)((unsigned long)(pmb->ctx_buf) & 0xffff);
oxid = (uint16_t)(((unsigned long)(pmb->ctx_buf) >> 16) & 0xffff);
pmb->ctx_buf = NULL;
pmb->ctx_ndlp = NULL;
if (mb->mbxStatus) {
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
lpfc_max_els_tries, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
/* Decrement the ndlp reference count from previous mbox command */
lpfc_nlp_put(ndlp);
if (!elsiocb) {
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
ulp_context = get_job_ulpcontext(phba, elsiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* Xri / rx_id */
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, rxid);
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com, oxid);
} else {
icmd = &elsiocb->iocb;
icmd->ulpContext = rxid;
icmd->unsli3.rcvsli3.ox_id = oxid;
}
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t); /* Skip past command */
rls_rsp = (struct RLS_RSP *)pcmd;
rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
mempool_free(pmb, phba->mbox_mem_pool);
/* Xmit ELS RLS ACC response tag <ulpIoTag> */
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
"2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
elsiocb->iotag, ulp_context,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi);
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
phba->fc_stat.elsXmitACC++;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
}
return;
}
/**
* lpfc_els_rcv_rls - Process an unsolicited rls iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes Read Link Status (RLS) IOCB received as an
* ELS unsolicited event. It first checks the remote port state. If the
* remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
* state, it invokes the lpfc_els_rsl_reject() routine to send the reject
* response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
* for reading the HBA link statistics. It is for the callback function,
* lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
* to actually sending out RPL Accept (ACC) response.
*
* Return codes
* 0 - Successfully processed rls iocb (currently always return 0)
**/
static int
lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
struct ls_rjt stat;
u32 ctx = get_job_ulpcontext(phba, cmdiocb);
u32 ox_id = get_job_rcvoxid(phba, cmdiocb);
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))
/* reject the unsolicited RLS request and done with it */
goto reject_out;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
if (mbox) {
lpfc_read_lnk_stat(phba, mbox);
mbox->ctx_buf = (void *)((unsigned long)
(ox_id << 16 | ctx));
mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
if (!mbox->ctx_ndlp)
goto node_err;
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
!= MBX_NOT_FINISHED)
/* Mbox completion will send ELS Response */
return 0;
/* Decrement reference count used for the failed mbox
* command.
*/
lpfc_nlp_put(ndlp);
node_err:
mempool_free(mbox, phba->mbox_mem_pool);
}
reject_out:
/* issue rejection response */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 0;
}
/**
* lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes Read Timout Value (RTV) IOCB received as an
* ELS unsolicited event. It first checks the remote port state. If the
* remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
* state, it invokes the lpfc_els_rsl_reject() routine to send the reject
* response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
* Value (RTV) unsolicited IOCB event.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the RTV Accept Response
* ELS IOCB command.
*
* Return codes
* 0 - Successfully processed rtv iocb (currently always return 0)
**/
static int
lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
int rc = 0;
IOCB_t *icmd;
union lpfc_wqe128 *wqe;
struct lpfc_hba *phba = vport->phba;
struct ls_rjt stat;
struct RTV_RSP *rtv_rsp;
uint8_t *pcmd;
struct lpfc_iocbq *elsiocb;
uint32_t cmdsize;
u32 ulp_context;
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE))
/* reject the unsolicited RTV request and done with it */
goto reject_out;
cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
lpfc_max_els_tries, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint32_t); /* Skip past command */
ulp_context = get_job_ulpcontext(phba, elsiocb);
/* use the command's xri in the response */
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
get_job_ulpcontext(phba, cmdiocb));
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
get_job_rcvoxid(phba, cmdiocb));
} else {
icmd = &elsiocb->iocb;
icmd->ulpContext = get_job_ulpcontext(phba, cmdiocb);
icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, cmdiocb);
}
rtv_rsp = (struct RTV_RSP *)pcmd;
/* populate RTV payload */
rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
/* Xmit ELS RLS ACC response tag <ulpIoTag> */
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
"2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
"did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
"Data: x%x x%x x%x\n",
elsiocb->iotag, ulp_context,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi,
rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
phba->fc_stat.elsXmitACC++;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 0;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
}
return 0;
reject_out:
/* issue rejection response */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
return 0;
}
/* lpfc_issue_els_rrq - Process an unsolicited rrq iocb
* @vport: pointer to a host virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
* @did: DID of the target.
* @rrq: Pointer to the rrq struct.
*
* Build a ELS RRQ command and send it to the target. If the issue_iocb is
* successful, the completion handler will clear the RRQ.
*
* Return codes
* 0 - Successfully sent rrq els iocb.
* 1 - Failed to send rrq els iocb.
**/
static int
lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint32_t did, struct lpfc_node_rrq *rrq)
{
struct lpfc_hba *phba = vport->phba;
struct RRQ *els_rrq;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
int ret;
if (!ndlp)
return 1;
/* If ndlp is not NULL, we will bump the reference count on it */
cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
ELS_CMD_RRQ);
if (!elsiocb)
return 1;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
/* For RRQ request, remainder of payload is Exchange IDs */
*((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
pcmd += sizeof(uint32_t);
els_rrq = (struct RRQ *) pcmd;
bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
bf_set(rrq_rxid, els_rrq, rrq->rxid);
bf_set(rrq_did, els_rrq, vport->fc_myDID);
els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue RRQ: did:x%x",
did, rrq->xritag, rrq->rxid);
elsiocb->context_un.rrq = rrq;
elsiocb->cmd_cmpl = lpfc_cmpl_els_rrq;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp)
goto io_err;
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (ret == IOCB_ERROR) {
lpfc_nlp_put(ndlp);
goto io_err;
}
return 0;
io_err:
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
/**
* lpfc_send_rrq - Sends ELS RRQ if needed.
* @phba: pointer to lpfc hba data structure.
* @rrq: pointer to the active rrq.
*
* This routine will call the lpfc_issue_els_rrq if the rrq is
* still active for the xri. If this function returns a failure then
* the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
*
* Returns 0 Success.
* 1 Failure.
**/
int
lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
{
struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
rrq->nlp_DID);
if (!ndlp)
return 1;
if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
return lpfc_issue_els_rrq(rrq->vport, ndlp,
rrq->nlp_DID, rrq);
else
return 1;
}
/**
* lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
* @vport: pointer to a host virtual N_Port data structure.
* @cmdsize: size of the ELS command.
* @oldiocb: pointer to the original lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
* It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the RPL Accept Response
* ELS command.
*
* Return code
* 0 - Successfully issued ACC RPL ELS command
* 1 - Failed to issue ACC RPL ELS command
**/
static int
lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
{
int rc = 0;
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
union lpfc_wqe128 *wqe;
RPL_RSP rpl_rsp;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
u32 ulp_context;
elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
ndlp->nlp_DID, ELS_CMD_ACC);
if (!elsiocb)
return 1;
ulp_context = get_job_ulpcontext(phba, elsiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
/* Xri / rx_id */
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
get_job_ulpcontext(phba, oldiocb));
bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
get_job_rcvoxid(phba, oldiocb));
} else {
icmd = &elsiocb->iocb;
icmd->ulpContext = get_job_ulpcontext(phba, oldiocb);
icmd->unsli3.rcvsli3.ox_id = get_job_rcvoxid(phba, oldiocb);
}
pcmd = elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof(uint16_t);
*((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
pcmd += sizeof(uint16_t);
/* Setup the RPL ACC payload */
rpl_rsp.listLen = be32_to_cpu(1);
rpl_rsp.index = 0;
rpl_rsp.port_num_blk.portNum = 0;
rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
sizeof(struct lpfc_name));
memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
/* Xmit ELS RPL ACC response tag <ulpIoTag> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0120 Xmit ELS RPL ACC response tag x%x "
"xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
"rpi x%x\n",
elsiocb->iotag, ulp_context,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_rpi);
elsiocb->cmd_cmpl = lpfc_cmpl_els_rsp;
phba->fc_stat.elsXmitACC++;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return 1;
}
return 0;
}
/**
* lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes Read Port List (RPL) IOCB received as an ELS
* unsolicited event. It first checks the remote port state. If the remote
* port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
* invokes the lpfc_els_rsp_reject() routine to send reject response.
* Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
* to accept the RPL.
*
* Return code
* 0 - Successfully processed rpl iocb (currently always return 0)
**/
static int
lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
uint32_t maxsize;
uint16_t cmdsize;
RPL *rpl;
struct ls_rjt stat;
if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
/* issue rejection response */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
NULL);
/* rejected the unsolicited RPL request and done with it */
return 0;
}
pcmd = cmdiocb->cmd_dmabuf;
lp = (uint32_t *) pcmd->virt;
rpl = (RPL *) (lp + 1);
maxsize = be32_to_cpu(rpl->maxsize);
/* We support only one port */
if ((rpl->index == 0) &&
((maxsize == 0) ||
((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
} else {
cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
}
lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
return 0;
}
/**
* lpfc_els_rcv_farp - Process an unsolicited farp request els command
* @vport: pointer to a virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes Fibre Channel Address Resolution Protocol
* (FARP) Request IOCB received as an ELS unsolicited event. Currently,
* the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
* FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
* Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
* remote PortName is compared against the FC PortName stored in the @vport
* data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
* compared against the FC NodeName stored in the @vport data structure.
* If any of these matches and the FARP_REQUEST_FARPR flag is set in the
* FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
* invoked to send out FARP Response to the remote node. Before sending the
* FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
* request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
* routine is invoked to log into the remote port first.
*
* Return code
* 0 - Either the FARP Match Mode not supported or successfully processed
**/
static int
lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
FARP *fp;
uint32_t cnt, did;
did = get_job_els_rsp64_did(vport->phba, cmdiocb);
pcmd = cmdiocb->cmd_dmabuf;
lp = (uint32_t *) pcmd->virt;
lp++;
fp = (FARP *) lp;
/* FARP-REQ received from DID <did> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0601 FARP-REQ received from DID x%x\n", did);
/* We will only support match on WWPN or WWNN */
if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
return 0;
}
cnt = 0;
/* If this FARP command is searching for my portname */
if (fp->Mflags & FARP_MATCH_PORT) {
if (memcmp(&fp->RportName, &vport->fc_portname,
sizeof(struct lpfc_name)) == 0)
cnt = 1;
}
/* If this FARP command is searching for my nodename */
if (fp->Mflags & FARP_MATCH_NODE) {
if (memcmp(&fp->RnodeName, &vport->fc_nodename,
sizeof(struct lpfc_name)) == 0)
cnt = 1;
}
if (cnt) {
if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
(ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
/* Log back into the node before sending the FARP. */
if (fp->Rflags & FARP_REQUEST_PLOGI) {
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
}
/* Send a FARP response to that node */
if (fp->Rflags & FARP_REQUEST_FARPR)
lpfc_issue_els_farpr(vport, did, 0);
}
}
return 0;
}
/**
* lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine processes Fibre Channel Address Resolution Protocol
* Response (FARPR) IOCB received as an ELS unsolicited event. It simply
* invokes the lpfc_els_rsp_acc() routine to the remote node to accept
* the FARP response request.
*
* Return code
* 0 - Successfully processed FARPR IOCB (currently always return 0)
**/
static int
lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
uint32_t did;
did = get_job_els_rsp64_did(vport->phba, cmdiocb);
/* FARP-RSP received from DID <did> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0600 FARP-RSP received from DID x%x\n", did);
/* ACCEPT the Farp resp request */
lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
return 0;
}
/**
* lpfc_els_rcv_fan - Process an unsolicited fan iocb command
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @fan_ndlp: pointer to a node-list data structure.
*
* This routine processes a Fabric Address Notification (FAN) IOCB
* command received as an ELS unsolicited event. The FAN ELS command will
* only be processed on a physical port (i.e., the @vport represents the
* physical port). The fabric NodeName and PortName from the FAN IOCB are
* compared against those in the phba data structure. If any of those is
* different, the lpfc_initial_flogi() routine is invoked to initialize
* Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
* if both of those are identical, the lpfc_issue_fabric_reglogin() routine
* is invoked to register login to the fabric.
*
* Return code
* 0 - Successfully processed fan iocb (currently always return 0).
**/
static int
lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *fan_ndlp)
{
struct lpfc_hba *phba = vport->phba;
uint32_t *lp;
FAN *fp;
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
lp = (uint32_t *)cmdiocb->cmd_dmabuf->virt;
fp = (FAN *) ++lp;
/* FAN received; Fan does not have a reply sequence */
if ((vport == phba->pport) &&
(vport->port_state == LPFC_LOCAL_CFG_LINK)) {
if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
sizeof(struct lpfc_name))) ||
(memcmp(&phba->fc_fabparam.portName, &fp->FportName,
sizeof(struct lpfc_name)))) {
/* This port has switched fabrics. FLOGI is required */
lpfc_issue_init_vfi(vport);
} else {
/* FAN verified - skip FLOGI */
vport->fc_myDID = vport->fc_prevDID;
if (phba->sli_rev < LPFC_SLI_REV4)
lpfc_issue_fabric_reglogin(vport);
else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3138 Need register VFI: (x%x/%x)\n",
vport->fc_prevDID, vport->fc_myDID);
lpfc_issue_reg_vfi(vport);
}
}
}
return 0;
}
/**
* lpfc_els_rcv_edc - Process an unsolicited EDC iocb
* @vport: pointer to a host virtual N_Port data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @ndlp: pointer to a node-list data structure.
*
* Return code
* 0 - Successfully processed echo iocb (currently always return 0)
**/
static int
lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct fc_els_edc *edc_req;
struct fc_tlv_desc *tlv;
uint8_t *payload;
uint32_t *ptr, dtag;
const char *dtag_nm;
int desc_cnt = 0, bytes_remain;
struct fc_diag_lnkflt_desc *plnkflt;
payload = cmdiocb->cmd_dmabuf->virt;
edc_req = (struct fc_els_edc *)payload;
bytes_remain = be32_to_cpu(edc_req->desc_len);
ptr = (uint32_t *)payload;
lpfc_printf_vlog(vport, KERN_INFO,
LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
"3319 Rcv EDC payload len %d: x%x x%x x%x\n",
bytes_remain, be32_to_cpu(*ptr),
be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2)));
/* No signal support unless there is a congestion descriptor */
phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
phba->cgn_sig_freq = 0;
phba->cgn_reg_fpin = LPFC_CGN_FPIN_ALARM | LPFC_CGN_FPIN_WARN;
if (bytes_remain <= 0)
goto out;
tlv = edc_req->desc;
/*
* cycle through EDC diagnostic descriptors to find the
* congestion signaling capability descriptor
*/
while (bytes_remain) {
if (bytes_remain < FC_TLV_DESC_HDR_SZ) {
lpfc_printf_log(phba, KERN_WARNING,
LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
"6464 Truncated TLV hdr on "
"Diagnostic descriptor[%d]\n",
desc_cnt);
goto out;
}
dtag = be32_to_cpu(tlv->desc_tag);
switch (dtag) {
case ELS_DTAG_LNK_FAULT_CAP:
if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
sizeof(struct fc_diag_lnkflt_desc)) {
lpfc_printf_log(phba, KERN_WARNING,
LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
"6465 Truncated Link Fault Diagnostic "
"descriptor[%d]: %d vs 0x%zx 0x%zx\n",
desc_cnt, bytes_remain,
FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
sizeof(struct fc_diag_lnkflt_desc));
goto out;
}
plnkflt = (struct fc_diag_lnkflt_desc *)tlv;
lpfc_printf_log(phba, KERN_INFO,
LOG_ELS | LOG_LDS_EVENT,
"4626 Link Fault Desc Data: x%08x len x%x "
"da x%x dd x%x interval x%x\n",
be32_to_cpu(plnkflt->desc_tag),
be32_to_cpu(plnkflt->desc_len),
be32_to_cpu(
plnkflt->degrade_activate_threshold),
be32_to_cpu(
plnkflt->degrade_deactivate_threshold),
be32_to_cpu(plnkflt->fec_degrade_interval));
break;
case ELS_DTAG_CG_SIGNAL_CAP:
if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
sizeof(struct fc_diag_cg_sig_desc)) {
lpfc_printf_log(
phba, KERN_WARNING, LOG_CGN_MGMT,
"6466 Truncated cgn signal Diagnostic "
"descriptor[%d]: %d vs 0x%zx 0x%zx\n",
desc_cnt, bytes_remain,
FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
sizeof(struct fc_diag_cg_sig_desc));
goto out;
}
phba->cgn_reg_fpin = phba->cgn_init_reg_fpin;
phba->cgn_reg_signal = phba->cgn_init_reg_signal;
/* We start negotiation with lpfc_fabric_cgn_frequency.
* When we process the EDC, we will settle on the
* higher frequency.
*/
phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
lpfc_least_capable_settings(
phba, (struct fc_diag_cg_sig_desc *)tlv);
break;
default:
dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
lpfc_printf_log(phba, KERN_WARNING,
LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
"6467 unknown Diagnostic "
"Descriptor[%d]: tag x%x (%s)\n",
desc_cnt, dtag, dtag_nm);
}
bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv);
tlv = fc_tlv_next_desc(tlv);
desc_cnt++;
}
out:
/* Need to send back an ACC */
lpfc_issue_els_edc_rsp(vport, cmdiocb, ndlp);
lpfc_config_cgn_signal(phba);
return 0;
}
/**
* lpfc_els_timeout - Handler funciton to the els timer
* @t: timer context used to obtain the vport.
*
* This routine is invoked by the ELS timer after timeout. It posts the ELS
* timer timeout event by setting the WORKER_ELS_TMO bit to the work port
* event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
* up the worker thread. It is for the worker thread to invoke the routine
* lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
**/
void
lpfc_els_timeout(struct timer_list *t)
{
struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc);
struct lpfc_hba *phba = vport->phba;
uint32_t tmo_posted;
unsigned long iflag;
spin_lock_irqsave(&vport->work_port_lock, iflag);
tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
vport->work_port_events |= WORKER_ELS_TMO;
spin_unlock_irqrestore(&vport->work_port_lock, iflag);
if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
lpfc_worker_wake_up(phba);
return;
}
/**
* lpfc_els_timeout_handler - Process an els timeout event
* @vport: pointer to a virtual N_Port data structure.
*
* This routine is the actual handler function that processes an ELS timeout
* event. It walks the ELS ring to get and abort all the IOCBs (except the
* ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
* invoking the lpfc_sli_issue_abort_iotag() routine.
**/
void
lpfc_els_timeout_handler(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *tmp_iocb, *piocb;
IOCB_t *cmd = NULL;
struct lpfc_dmabuf *pcmd;
uint32_t els_command = 0;
uint32_t timeout;
uint32_t remote_ID = 0xffffffff;
LIST_HEAD(abort_list);
u32 ulp_command = 0, ulp_context = 0, did = 0, iotag = 0;
timeout = (uint32_t)(phba->fc_ratov << 1);
pring = lpfc_phba_elsring(phba);
if (unlikely(!pring))
return;
if (phba->pport->load_flag & FC_UNLOADING)
return;
spin_lock_irq(&phba->hbalock);
if (phba->sli_rev == LPFC_SLI_REV4)
spin_lock(&pring->ring_lock);
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
ulp_command = get_job_cmnd(phba, piocb);
ulp_context = get_job_ulpcontext(phba, piocb);
did = get_job_els_rsp64_did(phba, piocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
iotag = get_wqe_reqtag(piocb);
} else {
cmd = &piocb->iocb;
iotag = cmd->ulpIoTag;
}
if ((piocb->cmd_flag & LPFC_IO_LIBDFC) != 0 ||
ulp_command == CMD_ABORT_XRI_CX ||
ulp_command == CMD_ABORT_XRI_CN ||
ulp_command == CMD_CLOSE_XRI_CN)
continue;
if (piocb->vport != vport)
continue;
pcmd = piocb->cmd_dmabuf;
if (pcmd)
els_command = *(uint32_t *) (pcmd->virt);
if (els_command == ELS_CMD_FARP ||
els_command == ELS_CMD_FARPR ||
els_command == ELS_CMD_FDISC)
continue;
if (piocb->drvrTimeout > 0) {
if (piocb->drvrTimeout >= timeout)
piocb->drvrTimeout -= timeout;
else
piocb->drvrTimeout = 0;
continue;
}
remote_ID = 0xffffffff;
if (ulp_command != CMD_GEN_REQUEST64_CR) {
remote_ID = did;
} else {
struct lpfc_nodelist *ndlp;
ndlp = __lpfc_findnode_rpi(vport, ulp_context);
if (ndlp)
remote_ID = ndlp->nlp_DID;
}
list_add_tail(&piocb->dlist, &abort_list);
}
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring->ring_lock);
spin_unlock_irq(&phba->hbalock);
list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0127 ELS timeout Data: x%x x%x x%x "
"x%x\n", els_command,
remote_ID, ulp_command, iotag);
spin_lock_irq(&phba->hbalock);
list_del_init(&piocb->dlist);
lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL);
spin_unlock_irq(&phba->hbalock);
}
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
if (!list_empty(&pring->txcmplq))
if (!(phba->pport->load_flag & FC_UNLOADING))
mod_timer(&vport->els_tmofunc,
jiffies + msecs_to_jiffies(1000 * timeout));
}
/**
* lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
* @vport: pointer to a host virtual N_Port data structure.
*
* This routine is used to clean up all the outstanding ELS commands on a
* @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
* routine. After that, it walks the ELS transmit queue to remove all the
* IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
* the IOCBs with a non-NULL completion callback function, the callback
* function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
* un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
* callback function, the IOCB will simply be released. Finally, it walks
* the ELS transmit completion queue to issue an abort IOCB to any transmit
* completion queue IOCB that is associated with the @vport and is not
* an IOCB from libdfc (i.e., the management plane IOCBs that are not
* part of the discovery state machine) out to HBA by invoking the
* lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
* abort IOCB to any transmit completion queueed IOCB, it does not guarantee
* the IOCBs are aborted when this function returns.
**/
void
lpfc_els_flush_cmd(struct lpfc_vport *vport)
{
LIST_HEAD(abort_list);
LIST_HEAD(cancel_list);
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *tmp_iocb, *piocb;
u32 ulp_command;
unsigned long iflags = 0;
bool mbx_tmo_err;
lpfc_fabric_abort_vport(vport);
/*
* For SLI3, only the hbalock is required. But SLI4 needs to coordinate
* with the ring insert operation. Because lpfc_sli_issue_abort_iotag
* ultimately grabs the ring_lock, the driver must splice the list into
* a working list and release the locks before calling the abort.
*/
spin_lock_irqsave(&phba->hbalock, iflags);
pring = lpfc_phba_elsring(phba);
/* Bail out if we've no ELS wq, like in PCI error recovery case. */
if (unlikely(!pring)) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
return;
}
if (phba->sli_rev == LPFC_SLI_REV4)
spin_lock(&pring->ring_lock);
mbx_tmo_err = test_bit(MBX_TMO_ERR, &phba->bit_flags);
/* First we need to issue aborts to outstanding cmds on txcmpl */
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
if (piocb->cmd_flag & LPFC_IO_LIBDFC && !mbx_tmo_err)
continue;
if (piocb->vport != vport)
continue;
if (piocb->cmd_flag & LPFC_DRIVER_ABORTED && !mbx_tmo_err)
continue;
/* On the ELS ring we can have ELS_REQUESTs or
* GEN_REQUESTs waiting for a response.
*/
ulp_command = get_job_cmnd(phba, piocb);
if (ulp_command == CMD_ELS_REQUEST64_CR) {
list_add_tail(&piocb->dlist, &abort_list);
/* If the link is down when flushing ELS commands
* the firmware will not complete them till after
* the link comes back up. This may confuse
* discovery for the new link up, so we need to
* change the compl routine to just clean up the iocb
* and avoid any retry logic.
*/
if (phba->link_state == LPFC_LINK_DOWN)
piocb->cmd_cmpl = lpfc_cmpl_els_link_down;
} else if (ulp_command == CMD_GEN_REQUEST64_CR ||
mbx_tmo_err)
list_add_tail(&piocb->dlist, &abort_list);
}
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring->ring_lock);
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Abort each txcmpl iocb on aborted list and remove the dlist links. */
list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
spin_lock_irqsave(&phba->hbalock, iflags);
list_del_init(&piocb->dlist);
if (mbx_tmo_err)
list_move_tail(&piocb->list, &cancel_list);
else
lpfc_sli_issue_abort_iotag(phba, pring, piocb, NULL);
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
if (!list_empty(&cancel_list))
lpfc_sli_cancel_iocbs(phba, &cancel_list, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
else
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
if (!list_empty(&abort_list))
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"3387 abort list for txq not empty\n");
INIT_LIST_HEAD(&abort_list);
spin_lock_irqsave(&phba->hbalock, iflags);
if (phba->sli_rev == LPFC_SLI_REV4)
spin_lock(&pring->ring_lock);
/* No need to abort the txq list,
* just queue them up for lpfc_sli_cancel_iocbs
*/
list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
ulp_command = get_job_cmnd(phba, piocb);
if (piocb->cmd_flag & LPFC_IO_LIBDFC)
continue;
/* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
if (ulp_command == CMD_QUE_RING_BUF_CN ||
ulp_command == CMD_QUE_RING_BUF64_CN ||
ulp_command == CMD_CLOSE_XRI_CN ||
ulp_command == CMD_ABORT_XRI_CN ||
ulp_command == CMD_ABORT_XRI_CX)
continue;
if (piocb->vport != vport)
continue;
list_del_init(&piocb->list);
list_add_tail(&piocb->list, &abort_list);
}
/* The same holds true for any FLOGI/FDISC on the fabric_iocb_list */
if (vport == phba->pport) {
list_for_each_entry_safe(piocb, tmp_iocb,
&phba->fabric_iocb_list, list) {
list_del_init(&piocb->list);
list_add_tail(&piocb->list, &abort_list);
}
}
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring->ring_lock);
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &abort_list,
IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
return;
}
/**
* lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
* @phba: pointer to lpfc hba data structure.
*
* This routine is used to clean up all the outstanding ELS commands on a
* @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
* routine. After that, it walks the ELS transmit queue to remove all the
* IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
* the IOCBs with the completion callback function associated, the callback
* function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
* un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
* callback function associated, the IOCB will simply be released. Finally,
* it walks the ELS transmit completion queue to issue an abort IOCB to any
* transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
* management plane IOCBs that are not part of the discovery state machine)
* out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
**/
void
lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
{
struct lpfc_vport *vport;
spin_lock_irq(&phba->port_list_lock);
list_for_each_entry(vport, &phba->port_list, listentry)
lpfc_els_flush_cmd(vport);
spin_unlock_irq(&phba->port_list_lock);
return;
}
/**
* lpfc_send_els_failure_event - Posts an ELS command failure event
* @phba: Pointer to hba context object.
* @cmdiocbp: Pointer to command iocb which reported error.
* @rspiocbp: Pointer to response iocb which reported error.
*
* This function sends an event when there is an ELS command
* failure.
**/
void
lpfc_send_els_failure_event(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbp,
struct lpfc_iocbq *rspiocbp)
{
struct lpfc_vport *vport = cmdiocbp->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_lsrjt_event lsrjt_event;
struct lpfc_fabric_event_header fabric_event;
struct ls_rjt stat;
struct lpfc_nodelist *ndlp;
uint32_t *pcmd;
u32 ulp_status, ulp_word4;
ndlp = cmdiocbp->ndlp;
if (!ndlp)
return;
ulp_status = get_job_ulpstatus(phba, rspiocbp);
ulp_word4 = get_job_word4(phba, rspiocbp);
if (ulp_status == IOSTAT_LS_RJT) {
lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
sizeof(struct lpfc_name));
memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
sizeof(struct lpfc_name));
pcmd = (uint32_t *)cmdiocbp->cmd_dmabuf->virt;
lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
stat.un.ls_rjt_error_be = cpu_to_be32(ulp_word4);
lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(lsrjt_event),
(char *)&lsrjt_event,
LPFC_NL_VENDOR_ID);
return;
}
if (ulp_status == IOSTAT_NPORT_BSY ||
ulp_status == IOSTAT_FABRIC_BSY) {
fabric_event.event_type = FC_REG_FABRIC_EVENT;
if (ulp_status == IOSTAT_NPORT_BSY)
fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
else
fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
sizeof(struct lpfc_name));
memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
sizeof(struct lpfc_name));
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(fabric_event),
(char *)&fabric_event,
LPFC_NL_VENDOR_ID);
return;
}
}
/**
* lpfc_send_els_event - Posts unsolicited els event
* @vport: Pointer to vport object.
* @ndlp: Pointer FC node object.
* @payload: ELS command code type.
*
* This function posts an event when there is an incoming
* unsolicited ELS command.
**/
static void
lpfc_send_els_event(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
uint32_t *payload)
{
struct lpfc_els_event_header *els_data = NULL;
struct lpfc_logo_event *logo_data = NULL;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (*payload == ELS_CMD_LOGO) {
logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
if (!logo_data) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0148 Failed to allocate memory "
"for LOGO event\n");
return;
}
els_data = &logo_data->header;
} else {
els_data = kmalloc(sizeof(struct lpfc_els_event_header),
GFP_KERNEL);
if (!els_data) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0149 Failed to allocate memory "
"for ELS event\n");
return;
}
}
els_data->event_type = FC_REG_ELS_EVENT;
switch (*payload) {
case ELS_CMD_PLOGI:
els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
break;
case ELS_CMD_PRLO:
els_data->subcategory = LPFC_EVENT_PRLO_RCV;
break;
case ELS_CMD_ADISC:
els_data->subcategory = LPFC_EVENT_ADISC_RCV;
break;
case ELS_CMD_LOGO:
els_data->subcategory = LPFC_EVENT_LOGO_RCV;
/* Copy the WWPN in the LOGO payload */
memcpy(logo_data->logo_wwpn, &payload[2],
sizeof(struct lpfc_name));
break;
default:
kfree(els_data);
return;
}
memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
if (*payload == ELS_CMD_LOGO) {
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(struct lpfc_logo_event),
(char *)logo_data,
LPFC_NL_VENDOR_ID);
kfree(logo_data);
} else {
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(struct lpfc_els_event_header),
(char *)els_data,
LPFC_NL_VENDOR_ID);
kfree(els_data);
}
return;
}
DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_li_event_nm, fc_fpin_li_event_types,
FC_FPIN_LI_EVT_TYPES_INIT);
DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_deli_event_nm, fc_fpin_deli_event_types,
FC_FPIN_DELI_EVT_TYPES_INIT);
DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_event_nm, fc_fpin_congn_event_types,
FC_FPIN_CONGN_EVT_TYPES_INIT);
DECLARE_ENUM2STR_LOOKUP(lpfc_get_fpin_congn_severity_nm,
fc_fpin_congn_severity_types,
FC_FPIN_CONGN_SEVERITY_INIT);
/**
* lpfc_display_fpin_wwpn - Display WWPNs accessible by the attached port
* @phba: Pointer to phba object.
* @wwnlist: Pointer to list of WWPNs in FPIN payload
* @cnt: count of WWPNs in FPIN payload
*
* This routine is called by LI and PC descriptors.
* Limit the number of WWPNs displayed to 6 log messages, 6 per log message
*/
static void
lpfc_display_fpin_wwpn(struct lpfc_hba *phba, __be64 *wwnlist, u32 cnt)
{
char buf[LPFC_FPIN_WWPN_LINE_SZ];
__be64 wwn;
u64 wwpn;
int i, len;
int line = 0;
int wcnt = 0;
bool endit = false;
len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ, "Accessible WWPNs:");
for (i = 0; i < cnt; i++) {
/* Are we on the last WWPN */
if (i == (cnt - 1))
endit = true;
/* Extract the next WWPN from the payload */
wwn = *wwnlist++;
wwpn = be64_to_cpu(wwn);
len += scnprintf(buf + len, LPFC_FPIN_WWPN_LINE_SZ - len,
" %016llx", wwpn);
/* Log a message if we are on the last WWPN
* or if we hit the max allowed per message.
*/
wcnt++;
if (wcnt == LPFC_FPIN_WWPN_LINE_CNT || endit) {
buf[len] = 0;
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"4686 %s\n", buf);
/* Check if we reached the last WWPN */
if (endit)
return;
/* Limit the number of log message displayed per FPIN */
line++;
if (line == LPFC_FPIN_WWPN_NUM_LINE) {
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"4687 %d WWPNs Truncated\n",
cnt - i - 1);
return;
}
/* Start over with next log message */
wcnt = 0;
len = scnprintf(buf, LPFC_FPIN_WWPN_LINE_SZ,
"Additional WWPNs:");
}
}
}
/**
* lpfc_els_rcv_fpin_li - Process an FPIN Link Integrity Event.
* @phba: Pointer to phba object.
* @tlv: Pointer to the Link Integrity Notification Descriptor.
*
* This function processes a Link Integrity FPIN event by logging a message.
**/
static void
lpfc_els_rcv_fpin_li(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
{
struct fc_fn_li_desc *li = (struct fc_fn_li_desc *)tlv;
const char *li_evt_str;
u32 li_evt, cnt;
li_evt = be16_to_cpu(li->event_type);
li_evt_str = lpfc_get_fpin_li_event_nm(li_evt);
cnt = be32_to_cpu(li->pname_count);
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"4680 FPIN Link Integrity %s (x%x) "
"Detecting PN x%016llx Attached PN x%016llx "
"Duration %d mSecs Count %d Port Cnt %d\n",
li_evt_str, li_evt,
be64_to_cpu(li->detecting_wwpn),
be64_to_cpu(li->attached_wwpn),
be32_to_cpu(li->event_threshold),
be32_to_cpu(li->event_count), cnt);
lpfc_display_fpin_wwpn(phba, (__be64 *)&li->pname_list, cnt);
}
/**
* lpfc_els_rcv_fpin_del - Process an FPIN Delivery Event.
* @phba: Pointer to hba object.
* @tlv: Pointer to the Delivery Notification Descriptor TLV
*
* This function processes a Delivery FPIN event by logging a message.
**/
static void
lpfc_els_rcv_fpin_del(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
{
struct fc_fn_deli_desc *del = (struct fc_fn_deli_desc *)tlv;
const char *del_rsn_str;
u32 del_rsn;
__be32 *frame;
del_rsn = be16_to_cpu(del->deli_reason_code);
del_rsn_str = lpfc_get_fpin_deli_event_nm(del_rsn);
/* Skip over desc_tag/desc_len header to payload */
frame = (__be32 *)(del + 1);
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"4681 FPIN Delivery %s (x%x) "
"Detecting PN x%016llx Attached PN x%016llx "
"DiscHdr0 x%08x "
"DiscHdr1 x%08x DiscHdr2 x%08x DiscHdr3 x%08x "
"DiscHdr4 x%08x DiscHdr5 x%08x\n",
del_rsn_str, del_rsn,
be64_to_cpu(del->detecting_wwpn),
be64_to_cpu(del->attached_wwpn),
be32_to_cpu(frame[0]),
be32_to_cpu(frame[1]),
be32_to_cpu(frame[2]),
be32_to_cpu(frame[3]),
be32_to_cpu(frame[4]),
be32_to_cpu(frame[5]));
}
/**
* lpfc_els_rcv_fpin_peer_cgn - Process a FPIN Peer Congestion Event.
* @phba: Pointer to hba object.
* @tlv: Pointer to the Peer Congestion Notification Descriptor TLV
*
* This function processes a Peer Congestion FPIN event by logging a message.
**/
static void
lpfc_els_rcv_fpin_peer_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
{
struct fc_fn_peer_congn_desc *pc = (struct fc_fn_peer_congn_desc *)tlv;
const char *pc_evt_str;
u32 pc_evt, cnt;
pc_evt = be16_to_cpu(pc->event_type);
pc_evt_str = lpfc_get_fpin_congn_event_nm(pc_evt);
cnt = be32_to_cpu(pc->pname_count);
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_ELS,
"4684 FPIN Peer Congestion %s (x%x) "
"Duration %d mSecs "
"Detecting PN x%016llx Attached PN x%016llx "
"Impacted Port Cnt %d\n",
pc_evt_str, pc_evt,
be32_to_cpu(pc->event_period),
be64_to_cpu(pc->detecting_wwpn),
be64_to_cpu(pc->attached_wwpn),
cnt);
lpfc_display_fpin_wwpn(phba, (__be64 *)&pc->pname_list, cnt);
}
/**
* lpfc_els_rcv_fpin_cgn - Process an FPIN Congestion notification
* @phba: Pointer to hba object.
* @tlv: Pointer to the Congestion Notification Descriptor TLV
*
* This function processes an FPIN Congestion Notifiction. The notification
* could be an Alarm or Warning. This routine feeds that data into driver's
* running congestion algorithm. It also processes the FPIN by
* logging a message. It returns 1 to indicate deliver this message
* to the upper layer or 0 to indicate don't deliver it.
**/
static int
lpfc_els_rcv_fpin_cgn(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
{
struct lpfc_cgn_info *cp;
struct fc_fn_congn_desc *cgn = (struct fc_fn_congn_desc *)tlv;
const char *cgn_evt_str;
u32 cgn_evt;
const char *cgn_sev_str;
u32 cgn_sev;
uint16_t value;
u32 crc;
bool nm_log = false;
int rc = 1;
cgn_evt = be16_to_cpu(cgn->event_type);
cgn_evt_str = lpfc_get_fpin_congn_event_nm(cgn_evt);
cgn_sev = cgn->severity;
cgn_sev_str = lpfc_get_fpin_congn_severity_nm(cgn_sev);
/* The driver only takes action on a Credit Stall or Oversubscription
* event type to engage the IO algorithm. The driver prints an
* unmaskable message only for Lost Credit and Credit Stall.
* TODO: Still need to have definition of host action on clear,
* lost credit and device specific event types.
*/
switch (cgn_evt) {
case FPIN_CONGN_LOST_CREDIT:
nm_log = true;
break;
case FPIN_CONGN_CREDIT_STALL:
nm_log = true;
fallthrough;
case FPIN_CONGN_OVERSUBSCRIPTION:
if (cgn_evt == FPIN_CONGN_OVERSUBSCRIPTION)
nm_log = false;
switch (cgn_sev) {
case FPIN_CONGN_SEVERITY_ERROR:
/* Take action here for an Alarm event */
if (phba->cmf_active_mode != LPFC_CFG_OFF) {
if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) {
/* Track of alarm cnt for SYNC_WQE */
atomic_inc(&phba->cgn_sync_alarm_cnt);
}
/* Track alarm cnt for cgn_info regardless
* of whether CMF is configured for Signals
* or FPINs.
*/
atomic_inc(&phba->cgn_fabric_alarm_cnt);
goto cleanup;
}
break;
case FPIN_CONGN_SEVERITY_WARNING:
/* Take action here for a Warning event */
if (phba->cmf_active_mode != LPFC_CFG_OFF) {
if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) {
/* Track of warning cnt for SYNC_WQE */
atomic_inc(&phba->cgn_sync_warn_cnt);
}
/* Track warning cnt and freq for cgn_info
* regardless of whether CMF is configured for
* Signals or FPINs.
*/
atomic_inc(&phba->cgn_fabric_warn_cnt);
cleanup:
/* Save frequency in ms */
phba->cgn_fpin_frequency =
be32_to_cpu(cgn->event_period);
value = phba->cgn_fpin_frequency;
if (phba->cgn_i) {
cp = (struct lpfc_cgn_info *)
phba->cgn_i->virt;
cp->cgn_alarm_freq =
cpu_to_le16(value);
cp->cgn_warn_freq =
cpu_to_le16(value);
crc = lpfc_cgn_calc_crc32
(cp,
LPFC_CGN_INFO_SZ,
LPFC_CGN_CRC32_SEED);
cp->cgn_info_crc = cpu_to_le32(crc);
}
/* Don't deliver to upper layer since
* driver took action on this tlv.
*/
rc = 0;
}
break;
}
break;
}
/* Change the log level to unmaskable for the following event types. */
lpfc_printf_log(phba, (nm_log ? KERN_WARNING : KERN_INFO),
LOG_CGN_MGMT | LOG_ELS,
"4683 FPIN CONGESTION %s type %s (x%x) Event "
"Duration %d mSecs\n",
cgn_sev_str, cgn_evt_str, cgn_evt,
be32_to_cpu(cgn->event_period));
return rc;
}
void
lpfc_els_rcv_fpin(struct lpfc_vport *vport, void *p, u32 fpin_length)
{
struct lpfc_hba *phba = vport->phba;
struct fc_els_fpin *fpin = (struct fc_els_fpin *)p;
struct fc_tlv_desc *tlv, *first_tlv, *current_tlv;
const char *dtag_nm;
int desc_cnt = 0, bytes_remain, cnt;
u32 dtag, deliver = 0;
int len;
/* FPINs handled only if we are in the right discovery state */
if (vport->port_state < LPFC_DISC_AUTH)
return;
/* make sure there is the full fpin header */
if (fpin_length < sizeof(struct fc_els_fpin))
return;
/* Sanity check descriptor length. The desc_len value does not
* include space for the ELS command and the desc_len fields.
*/
len = be32_to_cpu(fpin->desc_len);
if (fpin_length < len + sizeof(struct fc_els_fpin)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
"4671 Bad ELS FPIN length %d: %d\n",
len, fpin_length);
return;
}
tlv = (struct fc_tlv_desc *)&fpin->fpin_desc[0];
first_tlv = tlv;
bytes_remain = fpin_length - offsetof(struct fc_els_fpin, fpin_desc);
bytes_remain = min_t(u32, bytes_remain, be32_to_cpu(fpin->desc_len));
/* process each descriptor separately */
while (bytes_remain >= FC_TLV_DESC_HDR_SZ &&
bytes_remain >= FC_TLV_DESC_SZ_FROM_LENGTH(tlv)) {
dtag = be32_to_cpu(tlv->desc_tag);
switch (dtag) {
case ELS_DTAG_LNK_INTEGRITY:
lpfc_els_rcv_fpin_li(phba, tlv);
deliver = 1;
break;
case ELS_DTAG_DELIVERY:
lpfc_els_rcv_fpin_del(phba, tlv);
deliver = 1;
break;
case ELS_DTAG_PEER_CONGEST:
lpfc_els_rcv_fpin_peer_cgn(phba, tlv);
deliver = 1;
break;
case ELS_DTAG_CONGESTION:
deliver = lpfc_els_rcv_fpin_cgn(phba, tlv);
break;
default:
dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
"4678 unknown FPIN descriptor[%d]: "
"tag x%x (%s)\n",
desc_cnt, dtag, dtag_nm);
/* If descriptor is bad, drop the rest of the data */
return;
}
lpfc_cgn_update_stat(phba, dtag);
cnt = be32_to_cpu(tlv->desc_len);
/* Sanity check descriptor length. The desc_len value does not
* include space for the desc_tag and the desc_len fields.
*/
len -= (cnt + sizeof(struct fc_tlv_desc));
if (len < 0) {
dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
"4672 Bad FPIN descriptor TLV length "
"%d: %d %d %s\n",
cnt, len, fpin_length, dtag_nm);
return;
}
current_tlv = tlv;
bytes_remain -= FC_TLV_DESC_SZ_FROM_LENGTH(tlv);
tlv = fc_tlv_next_desc(tlv);
/* Format payload such that the FPIN delivered to the
* upper layer is a single descriptor FPIN.
*/
if (desc_cnt)
memcpy(first_tlv, current_tlv,
(cnt + sizeof(struct fc_els_fpin)));
/* Adjust the length so that it only reflects a
* single descriptor FPIN.
*/
fpin_length = cnt + sizeof(struct fc_els_fpin);
fpin->desc_len = cpu_to_be32(fpin_length);
fpin_length += sizeof(struct fc_els_fpin); /* the entire FPIN */
/* Send every descriptor individually to the upper layer */
if (deliver)
fc_host_fpin_rcv(lpfc_shost_from_vport(vport),
fpin_length, (char *)fpin, 0);
desc_cnt++;
}
}
/**
* lpfc_els_unsol_buffer - Process an unsolicited event data buffer
* @phba: pointer to lpfc hba data structure.
* @pring: pointer to a SLI ring.
* @vport: pointer to a host virtual N_Port data structure.
* @elsiocb: pointer to lpfc els command iocb data structure.
*
* This routine is used for processing the IOCB associated with a unsolicited
* event. It first determines whether there is an existing ndlp that matches
* the DID from the unsolicited IOCB. If not, it will create a new one with
* the DID from the unsolicited IOCB. The ELS command from the unsolicited
* IOCB is then used to invoke the proper routine and to set up proper state
* of the discovery state machine.
**/
static void
lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
{
struct lpfc_nodelist *ndlp;
struct ls_rjt stat;
u32 *payload, payload_len;
u32 cmd = 0, did = 0, newnode, status = 0;
uint8_t rjt_exp, rjt_err = 0, init_link = 0;
struct lpfc_wcqe_complete *wcqe_cmpl = NULL;
LPFC_MBOXQ_t *mbox;
if (!vport || !elsiocb->cmd_dmabuf)
goto dropit;
newnode = 0;
wcqe_cmpl = &elsiocb->wcqe_cmpl;
payload = elsiocb->cmd_dmabuf->virt;
if (phba->sli_rev == LPFC_SLI_REV4)
payload_len = wcqe_cmpl->total_data_placed;
else
payload_len = elsiocb->iocb.unsli3.rcvsli3.acc_len;
status = get_job_ulpstatus(phba, elsiocb);
cmd = *payload;
if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
lpfc_sli3_post_buffer(phba, pring, 1);
did = get_job_els_rsp64_did(phba, elsiocb);
if (status) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV Unsol ELS: status:x%x/x%x did:x%x",
status, get_job_word4(phba, elsiocb), did);
goto dropit;
}
/* Check to see if link went down during discovery */
if (lpfc_els_chk_latt(vport))
goto dropit;
/* Ignore traffic received during vport shutdown. */
if (vport->load_flag & FC_UNLOADING)
goto dropit;
/* If NPort discovery is delayed drop incoming ELS */
if ((vport->fc_flag & FC_DISC_DELAYED) &&
(cmd != ELS_CMD_PLOGI))
goto dropit;
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = lpfc_nlp_init(vport, did);
if (!ndlp)
goto dropit;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
newnode = 1;
if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
ndlp->nlp_type |= NLP_FABRIC;
} else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
newnode = 1;
}
phba->fc_stat.elsRcvFrame++;
/*
* Do not process any unsolicited ELS commands
* if the ndlp is in DEV_LOSS
*/
spin_lock_irq(&ndlp->lock);
if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
spin_unlock_irq(&ndlp->lock);
if (newnode)
lpfc_nlp_put(ndlp);
goto dropit;
}
spin_unlock_irq(&ndlp->lock);
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp)
goto dropit;
elsiocb->vport = vport;
if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
cmd &= ELS_CMD_MASK;
}
/* ELS command <elsCmd> received from NPORT <did> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0112 ELS command x%x received from NPORT x%x "
"refcnt %d Data: x%x x%x x%x x%x\n",
cmd, did, kref_read(&ndlp->kref), vport->port_state,
vport->fc_flag, vport->fc_myDID, vport->fc_prevDID);
/* reject till our FLOGI completes or PLOGI assigned DID via PT2PT */
if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
(cmd != ELS_CMD_FLOGI) &&
!((cmd == ELS_CMD_PLOGI) && (vport->fc_flag & FC_PT2PT))) {
rjt_err = LSRJT_LOGICAL_BSY;
rjt_exp = LSEXP_NOTHING_MORE;
goto lsrjt;
}
switch (cmd) {
case ELS_CMD_PLOGI:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV PLOGI: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPLOGI++;
ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
if (phba->sli_rev == LPFC_SLI_REV4 &&
(phba->pport->fc_flag & FC_PT2PT)) {
vport->fc_prevDID = vport->fc_myDID;
/* Our DID needs to be updated before registering
* the vfi. This is done in lpfc_rcv_plogi but
* that is called after the reg_vfi.
*/
vport->fc_myDID =
bf_get(els_rsp64_sid,
&elsiocb->wqe.xmit_els_rsp);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"3312 Remote port assigned DID x%x "
"%x\n", vport->fc_myDID,
vport->fc_prevDID);
}
lpfc_send_els_event(vport, ndlp, payload);
/* If Nport discovery is delayed, reject PLOGIs */
if (vport->fc_flag & FC_DISC_DELAYED) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_exp = LSEXP_NOTHING_MORE;
break;
}
if (vport->port_state < LPFC_DISC_AUTH) {
if (!(phba->pport->fc_flag & FC_PT2PT) ||
(phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_exp = LSEXP_NOTHING_MORE;
break;
}
}
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
spin_unlock_irq(&ndlp->lock);
lpfc_disc_state_machine(vport, ndlp, elsiocb,
NLP_EVT_RCV_PLOGI);
break;
case ELS_CMD_FLOGI:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FLOGI: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvFLOGI++;
/* If the driver believes fabric discovery is done and is ready,
* bounce the link. There is some descrepancy.
*/
if (vport->port_state >= LPFC_LOCAL_CFG_LINK &&
vport->fc_flag & FC_PT2PT &&
vport->rcv_flogi_cnt >= 1) {
rjt_err = LSRJT_LOGICAL_BSY;
rjt_exp = LSEXP_NOTHING_MORE;
init_link++;
goto lsrjt;
}
lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
/* retain node if our response is deferred */
if (phba->defer_flogi_acc_flag)
break;
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_LOGO:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV LOGO: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvLOGO++;
lpfc_send_els_event(vport, ndlp, payload);
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_exp = LSEXP_NOTHING_MORE;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_PRLO:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV PRLO: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPRLO++;
lpfc_send_els_event(vport, ndlp, payload);
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_exp = LSEXP_NOTHING_MORE;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
break;
case ELS_CMD_LCB:
phba->fc_stat.elsRcvLCB++;
lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
break;
case ELS_CMD_RDP:
phba->fc_stat.elsRcvRDP++;
lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
break;
case ELS_CMD_RSCN:
phba->fc_stat.elsRcvRSCN++;
lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_ADISC:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV ADISC: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
lpfc_send_els_event(vport, ndlp, payload);
phba->fc_stat.elsRcvADISC++;
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_exp = LSEXP_NOTHING_MORE;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb,
NLP_EVT_RCV_ADISC);
break;
case ELS_CMD_PDISC:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV PDISC: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPDISC++;
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_exp = LSEXP_NOTHING_MORE;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb,
NLP_EVT_RCV_PDISC);
break;
case ELS_CMD_FARPR:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FARPR: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvFARPR++;
lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
break;
case ELS_CMD_FARP:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FARP: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvFARP++;
lpfc_els_rcv_farp(vport, elsiocb, ndlp);
break;
case ELS_CMD_FAN:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FAN: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvFAN++;
lpfc_els_rcv_fan(vport, elsiocb, ndlp);
break;
case ELS_CMD_PRLI:
case ELS_CMD_NVMEPRLI:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV PRLI: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPRLI++;
if ((vport->port_state < LPFC_DISC_AUTH) &&
(vport->fc_flag & FC_FABRIC)) {
rjt_err = LSRJT_UNABLE_TPC;
rjt_exp = LSEXP_NOTHING_MORE;
break;
}
lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
break;
case ELS_CMD_LIRR:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV LIRR: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvLIRR++;
lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_RLS:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RLS: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvRLS++;
lpfc_els_rcv_rls(vport, elsiocb, ndlp);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_RPL:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RPL: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvRPL++;
lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_RNID:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RNID: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvRNID++;
lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_RTV:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RTV: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvRTV++;
lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_RRQ:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV RRQ: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvRRQ++;
lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_ECHO:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV ECHO: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvECHO++;
lpfc_els_rcv_echo(vport, elsiocb, ndlp);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
case ELS_CMD_REC:
/* receive this due to exchange closed */
rjt_err = LSRJT_UNABLE_TPC;
rjt_exp = LSEXP_INVALID_OX_RX;
break;
case ELS_CMD_FPIN:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV FPIN: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
lpfc_els_rcv_fpin(vport, (struct fc_els_fpin *)payload,
payload_len);
/* There are no replies, so no rjt codes */
break;
case ELS_CMD_EDC:
lpfc_els_rcv_edc(vport, elsiocb, ndlp);
break;
case ELS_CMD_RDF:
phba->fc_stat.elsRcvRDF++;
/* Accept RDF only from fabric controller */
if (did != Fabric_Cntl_DID) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
"1115 Received RDF from invalid DID "
"x%x\n", did);
rjt_err = LSRJT_PROTOCOL_ERR;
rjt_exp = LSEXP_NOTHING_MORE;
goto lsrjt;
}
lpfc_els_rcv_rdf(vport, elsiocb, ndlp);
break;
default:
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
"RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
cmd, did, vport->port_state);
/* Unsupported ELS command, reject */
rjt_err = LSRJT_CMD_UNSUPPORTED;
rjt_exp = LSEXP_NOTHING_MORE;
/* Unknown ELS command <elsCmd> received from NPORT <did> */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0115 Unknown ELS command x%x "
"received from NPORT x%x\n", cmd, did);
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
break;
}
lsrjt:
/* check if need to LS_RJT received ELS cmd */
if (rjt_err) {
memset(&stat, 0, sizeof(stat));
stat.un.b.lsRjtRsnCode = rjt_err;
stat.un.b.lsRjtRsnCodeExp = rjt_exp;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
NULL);
/* Remove the reference from above for new nodes. */
if (newnode)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
}
/* Release the reference on this elsiocb, not the ndlp. */
lpfc_nlp_put(elsiocb->ndlp);
elsiocb->ndlp = NULL;
/* Special case. Driver received an unsolicited command that
* unsupportable given the driver's current state. Reset the
* link and start over.
*/
if (init_link) {
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return;
lpfc_linkdown(phba);
lpfc_init_link(phba, mbox,
phba->cfg_topology,
phba->cfg_link_speed);
mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->vport = vport;
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
MBX_NOT_FINISHED)
mempool_free(mbox, phba->mbox_mem_pool);
}
return;
dropit:
if (vport && !(vport->load_flag & FC_UNLOADING))
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0111 Dropping received ELS cmd "
"Data: x%x x%x x%x x%x\n",
cmd, status, get_job_word4(phba, elsiocb), did);
phba->fc_stat.elsRcvDrop++;
}
/**
* lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
* @phba: pointer to lpfc hba data structure.
* @pring: pointer to a SLI ring.
* @elsiocb: pointer to lpfc els iocb data structure.
*
* This routine is used to process an unsolicited event received from a SLI
* (Service Level Interface) ring. The actual processing of the data buffer
* associated with the unsolicited event is done by invoking the routine
* lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
* SLI ring on which the unsolicited event was received.
**/
void
lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *elsiocb)
{
struct lpfc_vport *vport = elsiocb->vport;
u32 ulp_command, status, parameter, bde_count = 0;
IOCB_t *icmd;
struct lpfc_wcqe_complete *wcqe_cmpl = NULL;
struct lpfc_dmabuf *bdeBuf1 = elsiocb->cmd_dmabuf;
struct lpfc_dmabuf *bdeBuf2 = elsiocb->bpl_dmabuf;
dma_addr_t paddr;
elsiocb->cmd_dmabuf = NULL;
elsiocb->rsp_dmabuf = NULL;
elsiocb->bpl_dmabuf = NULL;
wcqe_cmpl = &elsiocb->wcqe_cmpl;
ulp_command = get_job_cmnd(phba, elsiocb);
status = get_job_ulpstatus(phba, elsiocb);
parameter = get_job_word4(phba, elsiocb);
if (phba->sli_rev == LPFC_SLI_REV4)
bde_count = wcqe_cmpl->word3;
else
bde_count = elsiocb->iocb.ulpBdeCount;
if (status == IOSTAT_NEED_BUFFER) {
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
} else if (status == IOSTAT_LOCAL_REJECT &&
(parameter & IOERR_PARAM_MASK) ==
IOERR_RCV_BUFFER_WAITING) {
phba->fc_stat.NoRcvBuf++;
/* Not enough posted buffers; Try posting more buffers */
if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
lpfc_sli3_post_buffer(phba, pring, 0);
return;
}
if (phba->sli_rev == LPFC_SLI_REV3) {
icmd = &elsiocb->iocb;
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(ulp_command == CMD_IOCB_RCV_ELS64_CX ||
ulp_command == CMD_IOCB_RCV_SEQ64_CX)) {
if (icmd->unsli3.rcvsli3.vpi == 0xffff)
vport = phba->pport;
else
vport = lpfc_find_vport_by_vpid(phba,
icmd->unsli3.rcvsli3.vpi);
}
}
/* If there are no BDEs associated
* with this IOCB, there is nothing to do.
*/
if (bde_count == 0)
return;
/* Account for SLI2 or SLI3 and later unsolicited buffering */
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
elsiocb->cmd_dmabuf = bdeBuf1;
if (bde_count == 2)
elsiocb->bpl_dmabuf = bdeBuf2;
} else {
icmd = &elsiocb->iocb;
paddr = getPaddr(icmd->un.cont64[0].addrHigh,
icmd->un.cont64[0].addrLow);
elsiocb->cmd_dmabuf = lpfc_sli_ringpostbuf_get(phba, pring,
paddr);
if (bde_count == 2) {
paddr = getPaddr(icmd->un.cont64[1].addrHigh,
icmd->un.cont64[1].addrLow);
elsiocb->bpl_dmabuf = lpfc_sli_ringpostbuf_get(phba,
pring,
paddr);
}
}
lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
/*
* The different unsolicited event handlers would tell us
* if they are done with "mp" by setting cmd_dmabuf to NULL.
*/
if (elsiocb->cmd_dmabuf) {
lpfc_in_buf_free(phba, elsiocb->cmd_dmabuf);
elsiocb->cmd_dmabuf = NULL;
}
if (elsiocb->bpl_dmabuf) {
lpfc_in_buf_free(phba, elsiocb->bpl_dmabuf);
elsiocb->bpl_dmabuf = NULL;
}
}
static void
lpfc_start_fdmi(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
/* If this is the first time, allocate an ndlp and initialize
* it. Otherwise, make sure the node is enabled and then do the
* login.
*/
ndlp = lpfc_findnode_did(vport, FDMI_DID);
if (!ndlp) {
ndlp = lpfc_nlp_init(vport, FDMI_DID);
if (ndlp) {
ndlp->nlp_type |= NLP_FABRIC;
} else {
return;
}
}
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
}
/**
* lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
* @phba: pointer to lpfc hba data structure.
* @vport: pointer to a virtual N_Port data structure.
*
* This routine issues a Port Login (PLOGI) to the Name Server with
* State Change Request (SCR) for a @vport. This routine will create an
* ndlp for the Name Server associated to the @vport if such node does
* not already exist. The PLOGI to Name Server is issued by invoking the
* lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
* (FDMI) is configured to the @vport, a FDMI node will be created and
* the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
**/
void
lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
/*
* If lpfc_delay_discovery parameter is set and the clean address
* bit is cleared and fc fabric parameters chenged, delay FC NPort
* discovery.
*/
spin_lock_irq(shost->host_lock);
if (vport->fc_flag & FC_DISC_DELAYED) {
spin_unlock_irq(shost->host_lock);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"3334 Delay fc port discovery for %d secs\n",
phba->fc_ratov);
mod_timer(&vport->delayed_disc_tmo,
jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
return;
}
spin_unlock_irq(shost->host_lock);
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (!ndlp) {
ndlp = lpfc_nlp_init(vport, NameServer_DID);
if (!ndlp) {
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
lpfc_disc_start(vport);
return;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0251 NameServer login: no memory\n");
return;
}
}
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0252 Cannot issue NameServer login\n");
return;
}
if ((phba->cfg_enable_SmartSAN ||
(phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) &&
(vport->load_flag & FC_ALLOW_FDMI))
lpfc_start_fdmi(vport);
}
/**
* lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* This routine is the completion callback function to register new vport
* mailbox command. If the new vport mailbox command completes successfully,
* the fabric registration login shall be performed on physical port (the
* new vport created is actually a physical port, with VPI 0) or the port
* login to Name Server for State Change Request (SCR) will be performed
* on virtual port (real virtual port, with VPI greater than 0).
**/
static void
lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp = pmb->ctx_ndlp;
MAILBOX_t *mb = &pmb->u.mb;
int rc;
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
if (mb->mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0915 Register VPI failed : Status: x%x"
" upd bit: x%x \n", mb->mbxStatus,
mb->un.varRegVpi.upd);
if (phba->sli_rev == LPFC_SLI_REV4 &&
mb->un.varRegVpi.upd)
goto mbox_err_exit ;
switch (mb->mbxStatus) {
case 0x11: /* unsupported feature */
case 0x9603: /* max_vpi exceeded */
case 0x9602: /* Link event since CLEAR_LA */
/* giving up on vport registration */
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
break;
/* If reg_vpi fail with invalid VPI status, re-init VPI */
case 0x20:
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
lpfc_init_vpi(phba, pmb, vport->vpi);
pmb->vport = vport;
pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb,
MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"2732 Failed to issue INIT_VPI"
" mailbox command\n");
} else {
lpfc_nlp_put(ndlp);
return;
}
fallthrough;
default:
/* Try to recover from this error */
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_unreg_all_rpis(vport);
lpfc_mbx_unreg_vpi(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
if (mb->mbxStatus == MBX_NOT_FINISHED)
break;
if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_issue_init_vfi(vport);
else
lpfc_initial_flogi(vport);
} else {
lpfc_initial_fdisc(vport);
}
break;
}
} else {
spin_lock_irq(shost->host_lock);
vport->vpi_state |= LPFC_VPI_REGISTERED;
spin_unlock_irq(shost->host_lock);
if (vport == phba->pport) {
if (phba->sli_rev < LPFC_SLI_REV4)
lpfc_issue_fabric_reglogin(vport);
else {
/*
* If the physical port is instantiated using
* FDISC, do not start vport discovery.
*/
if (vport->port_state != LPFC_FDISC)
lpfc_start_fdiscs(phba);
lpfc_do_scr_ns_plogi(phba, vport);
}
} else {
lpfc_do_scr_ns_plogi(phba, vport);
}
}
mbox_err_exit:
/* Now, we decrement the ndlp reference count held for this
* callback function
*/
lpfc_nlp_put(ndlp);
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
/**
* lpfc_register_new_vport - Register a new vport with a HBA
* @phba: pointer to lpfc hba data structure.
* @vport: pointer to a host virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine registers the @vport as a new virtual port with a HBA.
* It is done through a registering vpi mailbox command.
**/
void
lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
LPFC_MBOXQ_t *mbox;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
lpfc_reg_vpi(vport, mbox);
mbox->vport = vport;
mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
if (!mbox->ctx_ndlp) {
mempool_free(mbox, phba->mbox_mem_pool);
goto mbox_err_exit;
}
mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
== MBX_NOT_FINISHED) {
/* mailbox command not success, decrement ndlp
* reference count for this command
*/
lpfc_nlp_put(ndlp);
mempool_free(mbox, phba->mbox_mem_pool);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0253 Register VPI: Can't send mbox\n");
goto mbox_err_exit;
}
} else {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0254 Register VPI: no memory\n");
goto mbox_err_exit;
}
return;
mbox_err_exit:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
return;
}
/**
* lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
* @phba: pointer to lpfc hba data structure.
*
* This routine cancels the retry delay timers to all the vports.
**/
void
lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct lpfc_nodelist *ndlp;
uint32_t link_state;
int i;
/* Treat this failure as linkdown for all vports */
link_state = phba->link_state;
lpfc_linkdown(phba);
phba->link_state = link_state;
vports = lpfc_create_vport_work_array(phba);
if (vports) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
if (ndlp)
lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
lpfc_els_flush_cmd(vports[i]);
}
lpfc_destroy_vport_work_array(phba, vports);
}
}
/**
* lpfc_retry_pport_discovery - Start timer to retry FLOGI.
* @phba: pointer to lpfc hba data structure.
*
* This routine abort all pending discovery commands and
* start a timer to retry FLOGI for the physical port
* discovery.
**/
void
lpfc_retry_pport_discovery(struct lpfc_hba *phba)
{
struct lpfc_nodelist *ndlp;
/* Cancel the all vports retry delay retry timers */
lpfc_cancel_all_vport_retry_delay_timer(phba);
/* If fabric require FLOGI, then re-instantiate physical login */
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
if (!ndlp)
return;
mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
phba->pport->port_state = LPFC_FLOGI;
return;
}
/**
* lpfc_fabric_login_reqd - Check if FLOGI required.
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to FDISC command iocb.
* @rspiocb: pointer to FDISC response iocb.
*
* This routine checks if a FLOGI is reguired for FDISC
* to succeed.
**/
static int
lpfc_fabric_login_reqd(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
if (ulp_status != IOSTAT_FABRIC_RJT ||
ulp_word4 != RJT_LOGIN_REQUIRED)
return 0;
else
return 1;
}
/**
* lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion callback function to a Fabric Discover
* (FDISC) ELS command. Since all the FDISC ELS commands are issued
* single threaded, each FDISC completion callback function will reset
* the discovery timer for all vports such that the timers will not get
* unnecessary timeout. The function checks the FDISC IOCB status. If error
* detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
* vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
* assigned to the vport has been changed with the completion of the FDISC
* command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
* are unregistered from the HBA, and then the lpfc_register_new_vport()
* routine is invoked to register new vport with the HBA. Otherwise, the
* lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
* Server for State Change Request (SCR).
**/
static void
lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
struct lpfc_nodelist *np;
struct lpfc_nodelist *next_np;
struct lpfc_iocbq *piocb;
struct lpfc_dmabuf *pcmd = cmdiocb->cmd_dmabuf, *prsp;
struct serv_parm *sp;
uint8_t fabric_param_changed;
u32 ulp_status, ulp_word4;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0123 FDISC completes. x%x/x%x prevDID: x%x\n",
ulp_status, ulp_word4,
vport->fc_prevDID);
/* Since all FDISCs are being single threaded, we
* must reset the discovery timer for ALL vports
* waiting to send FDISC when one completes.
*/
list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
lpfc_set_disctmo(piocb->vport);
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"FDISC cmpl: status:x%x/x%x prevdid:x%x",
ulp_status, ulp_word4, vport->fc_prevDID);
if (ulp_status) {
if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
lpfc_retry_pport_discovery(phba);
goto out;
}
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb))
goto out;
/* FDISC failed */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0126 FDISC failed. (x%x/x%x)\n",
ulp_status, ulp_word4);
goto fdisc_failed;
}
lpfc_check_nlp_post_devloss(vport, ndlp);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
vport->fc_flag |= FC_FABRIC;
if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
vport->fc_flag |= FC_PUBLIC_LOOP;
spin_unlock_irq(shost->host_lock);
vport->fc_myDID = ulp_word4 & Mask_DID;
lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
if (!prsp)
goto out;
sp = prsp->virt + sizeof(uint32_t);
fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
memcpy(&vport->fabric_portname, &sp->portName,
sizeof(struct lpfc_name));
memcpy(&vport->fabric_nodename, &sp->nodeName,
sizeof(struct lpfc_name));
if (fabric_param_changed &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/* If our NportID changed, we need to ensure all
* remaining NPORTs get unreg_login'ed so we can
* issue unreg_vpi.
*/
list_for_each_entry_safe(np, next_np,
&vport->fc_nodes, nlp_listp) {
if ((np->nlp_state != NLP_STE_NPR_NODE) ||
!(np->nlp_flag & NLP_NPR_ADISC))
continue;
spin_lock_irq(&ndlp->lock);
np->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
lpfc_unreg_rpi(vport, np);
}
lpfc_cleanup_pending_mbox(vport);
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_unreg_all_rpis(vport);
lpfc_mbx_unreg_vpi(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
if (phba->sli_rev == LPFC_SLI_REV4)
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
else
vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
spin_unlock_irq(shost->host_lock);
} else if ((phba->sli_rev == LPFC_SLI_REV4) &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/*
* Driver needs to re-reg VPI in order for f/w
* to update the MAC address.
*/
lpfc_register_new_vport(phba, vport, ndlp);
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
goto out;
}
if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
lpfc_issue_init_vpi(vport);
else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
lpfc_register_new_vport(phba, vport, ndlp);
else
lpfc_do_scr_ns_plogi(phba, vport);
/* The FDISC completed successfully. Move the fabric ndlp to
* UNMAPPED state and register with the transport.
*/
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
goto out;
fdisc_failed:
if (vport->fc_vport &&
(vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS))
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
/* Cancel discovery timer */
lpfc_can_disctmo(vport);
out:
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
/**
* lpfc_issue_els_fdisc - Issue a fdisc iocb command
* @vport: pointer to a virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
* @retry: number of retries to the command IOCB.
*
* This routine prepares and issues a Fabric Discover (FDISC) IOCB to
* a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
* routine to issue the IOCB, which makes sure only one outstanding fabric
* IOCB will be sent off HBA at any given time.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the FDISC ELS command.
*
* Return code
* 0 - Successfully issued fdisc iocb command
* 1 - Failed to issue fdisc iocb command
**/
static int
lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
IOCB_t *icmd;
union lpfc_wqe128 *wqe = NULL;
struct lpfc_iocbq *elsiocb;
struct serv_parm *sp;
uint8_t *pcmd;
uint16_t cmdsize;
int did = ndlp->nlp_DID;
int rc;
vport->port_state = LPFC_FDISC;
vport->fc_myDID = 0;
cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
ELS_CMD_FDISC);
if (!elsiocb) {
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0255 Issue FDISC: no IOCB\n");
return 1;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
wqe = &elsiocb->wqe;
bf_set(els_req64_sid, &wqe->els_req, 0);
bf_set(els_req64_sp, &wqe->els_req, 1);
} else {
icmd = &elsiocb->iocb;
icmd->un.elsreq64.myID = 0;
icmd->un.elsreq64.fl = 1;
icmd->ulpCt_h = 1;
icmd->ulpCt_l = 0;
}
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
pcmd += sizeof(uint32_t); /* CSP Word 1 */
memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
sp = (struct serv_parm *) pcmd;
/* Setup CSPs accordingly for Fabric */
sp->cmn.e_d_tov = 0;
sp->cmn.w2.r_a_tov = 0;
sp->cmn.virtual_fabric_support = 0;
sp->cls1.classValid = 0;
sp->cls2.seqDelivery = 1;
sp->cls3.seqDelivery = 1;
pcmd += sizeof(uint32_t); /* CSP Word 2 */
pcmd += sizeof(uint32_t); /* CSP Word 3 */
pcmd += sizeof(uint32_t); /* CSP Word 4 */
pcmd += sizeof(uint32_t); /* Port Name */
memcpy(pcmd, &vport->fc_portname, 8);
pcmd += sizeof(uint32_t); /* Node Name */
pcmd += sizeof(uint32_t); /* Node Name */
memcpy(pcmd, &vport->fc_nodename, 8);
sp->cmn.valid_vendor_ver_level = 0;
memset(sp->un.vendorVersion, 0, sizeof(sp->un.vendorVersion));
lpfc_set_disctmo(vport);
phba->fc_stat.elsXmitFDISC++;
elsiocb->cmd_cmpl = lpfc_cmpl_els_fdisc;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue FDISC: did:x%x",
did, 0, 0);
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp)
goto err_out;
rc = lpfc_issue_fabric_iocb(phba, elsiocb);
if (rc == IOCB_ERROR) {
lpfc_nlp_put(ndlp);
goto err_out;
}
lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
return 0;
err_out:
lpfc_els_free_iocb(phba, elsiocb);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0256 Issue FDISC: Cannot send IOCB\n");
return 1;
}
/**
* lpfc_cmpl_els_npiv_logo - Completion function with vport logo
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the completion callback function to the issuing of a LOGO
* ELS command off a vport. It frees the command IOCB and then decrement the
* reference count held on ndlp for this completion function, indicating that
* the reference to the ndlp is no long needed. Note that the
* lpfc_els_free_iocb() routine decrements the ndlp reference held for this
* callback function and an additional explicit ndlp reference decrementation
* will trigger the actual release of the ndlp.
**/
static void
lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
IOCB_t *irsp;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
u32 ulp_status, ulp_word4, did, tmo;
ndlp = cmdiocb->ndlp;
ulp_status = get_job_ulpstatus(phba, rspiocb);
ulp_word4 = get_job_word4(phba, rspiocb);
if (phba->sli_rev == LPFC_SLI_REV4) {
did = get_job_els_rsp64_did(phba, cmdiocb);
tmo = get_wqe_tmo(cmdiocb);
} else {
irsp = &rspiocb->iocb;
did = get_job_els_rsp64_did(phba, rspiocb);
tmo = irsp->ulpTimeout;
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"LOGO npiv cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, did);
/* NPIV LOGO completes to NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2928 NPIV LOGO completes to NPort x%x "
"Data: x%x x%x x%x x%x x%x x%x x%x\n",
ndlp->nlp_DID, ulp_status, ulp_word4,
tmo, vport->num_disc_nodes,
kref_read(&ndlp->kref), ndlp->nlp_flag,
ndlp->fc4_xpt_flags);
if (ulp_status == IOSTAT_SUCCESS) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
vport->fc_flag &= ~FC_FABRIC;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
}
if (ndlp->save_flags & NLP_WAIT_FOR_LOGO) {
/* Wake up lpfc_vport_delete if waiting...*/
if (ndlp->logo_waitq)
wake_up(ndlp->logo_waitq);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_ISSUE_LOGO | NLP_LOGO_SND);
ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO;
spin_unlock_irq(&ndlp->lock);
}
/* Safe to release resources now. */
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
/**
* lpfc_issue_els_npiv_logo - Issue a logo off a vport
* @vport: pointer to a virtual N_Port data structure.
* @ndlp: pointer to a node-list data structure.
*
* This routine issues a LOGO ELS command to an @ndlp off a @vport.
*
* Note that the ndlp reference count will be incremented by 1 for holding the
* ndlp and the reference to ndlp will be stored into the ndlp field of
* the IOCB for the completion callback function to the LOGO ELS command.
*
* Return codes
* 0 - Successfully issued logo off the @vport
* 1 - Failed to issue logo off the @vport
**/
int
lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
int rc = 0;
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *elsiocb;
uint8_t *pcmd;
uint16_t cmdsize;
cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
ELS_CMD_LOGO);
if (!elsiocb)
return 1;
pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
*((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
pcmd += sizeof(uint32_t);
/* Fill in LOGO payload */
*((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
pcmd += sizeof(uint32_t);
memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Issue LOGO npiv did:x%x flg:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, 0);
elsiocb->cmd_cmpl = lpfc_cmpl_els_npiv_logo;
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_LOGO_SND;
spin_unlock_irq(&ndlp->lock);
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(phba, elsiocb);
goto err;
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
goto err;
}
return 0;
err:
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_LOGO_SND;
spin_unlock_irq(&ndlp->lock);
return 1;
}
/**
* lpfc_fabric_block_timeout - Handler function to the fabric block timer
* @t: timer context used to obtain the lpfc hba.
*
* This routine is invoked by the fabric iocb block timer after
* timeout. It posts the fabric iocb block timeout event by setting the
* WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
* lpfc_worker_wake_up() routine to wake up the worker thread. It is for
* the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
* posted event WORKER_FABRIC_BLOCK_TMO.
**/
void
lpfc_fabric_block_timeout(struct timer_list *t)
{
struct lpfc_hba *phba = from_timer(phba, t, fabric_block_timer);
unsigned long iflags;
uint32_t tmo_posted;
spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
if (!tmo_posted)
phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
if (!tmo_posted)
lpfc_worker_wake_up(phba);
return;
}
/**
* lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
* @phba: pointer to lpfc hba data structure.
*
* This routine issues one fabric iocb from the driver internal list to
* the HBA. It first checks whether it's ready to issue one fabric iocb to
* the HBA (whether there is no outstanding fabric iocb). If so, it shall
* remove one pending fabric iocb from the driver internal list and invokes
* lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
**/
static void
lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
{
struct lpfc_iocbq *iocb;
unsigned long iflags;
int ret;
repeat:
iocb = NULL;
spin_lock_irqsave(&phba->hbalock, iflags);
/* Post any pending iocb to the SLI layer */
if (atomic_read(&phba->fabric_iocb_count) == 0) {
list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
list);
if (iocb)
/* Increment fabric iocb count to hold the position */
atomic_inc(&phba->fabric_iocb_count);
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
if (iocb) {
iocb->fabric_cmd_cmpl = iocb->cmd_cmpl;
iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb;
iocb->cmd_flag |= LPFC_IO_FABRIC;
lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
"Fabric sched1: ste:x%x",
iocb->vport->port_state, 0, 0);
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
if (ret == IOCB_ERROR) {
iocb->cmd_cmpl = iocb->fabric_cmd_cmpl;
iocb->fabric_cmd_cmpl = NULL;
iocb->cmd_flag &= ~LPFC_IO_FABRIC;
set_job_ulpstatus(iocb, IOSTAT_LOCAL_REJECT);
iocb->wcqe_cmpl.parameter = IOERR_SLI_ABORTED;
iocb->cmd_cmpl(phba, iocb, iocb);
atomic_dec(&phba->fabric_iocb_count);
goto repeat;
}
}
}
/**
* lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
* @phba: pointer to lpfc hba data structure.
*
* This routine unblocks the issuing fabric iocb command. The function
* will clear the fabric iocb block bit and then invoke the routine
* lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
* from the driver internal fabric iocb list.
**/
void
lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
{
clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
lpfc_resume_fabric_iocbs(phba);
return;
}
/**
* lpfc_block_fabric_iocbs - Block issuing fabric iocb command
* @phba: pointer to lpfc hba data structure.
*
* This routine blocks the issuing fabric iocb for a specified amount of
* time (currently 100 ms). This is done by set the fabric iocb block bit
* and set up a timeout timer for 100ms. When the block bit is set, no more
* fabric iocb will be issued out of the HBA.
**/
static void
lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
{
int blocked;
blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
/* Start a timer to unblock fabric iocbs after 100ms */
if (!blocked)
mod_timer(&phba->fabric_block_timer,
jiffies + msecs_to_jiffies(100));
return;
}
/**
* lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
* @phba: pointer to lpfc hba data structure.
* @cmdiocb: pointer to lpfc command iocb data structure.
* @rspiocb: pointer to lpfc response iocb data structure.
*
* This routine is the callback function that is put to the fabric iocb's
* callback function pointer (iocb->cmd_cmpl). The original iocb's callback
* function pointer has been stored in iocb->fabric_cmd_cmpl. This callback
* function first restores and invokes the original iocb's callback function
* and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
* fabric bound iocb from the driver internal fabric iocb list onto the wire.
**/
static void
lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct ls_rjt stat;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
WARN_ON((cmdiocb->cmd_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC);
switch (ulp_status) {
case IOSTAT_NPORT_RJT:
case IOSTAT_FABRIC_RJT:
if (ulp_word4 & RJT_UNAVAIL_TEMP)
lpfc_block_fabric_iocbs(phba);
break;
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
lpfc_block_fabric_iocbs(phba);
break;
case IOSTAT_LS_RJT:
stat.un.ls_rjt_error_be =
cpu_to_be32(ulp_word4);
if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
(stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
lpfc_block_fabric_iocbs(phba);
break;
}
BUG_ON(atomic_read(&phba->fabric_iocb_count) == 0);
cmdiocb->cmd_cmpl = cmdiocb->fabric_cmd_cmpl;
cmdiocb->fabric_cmd_cmpl = NULL;
cmdiocb->cmd_flag &= ~LPFC_IO_FABRIC;
cmdiocb->cmd_cmpl(phba, cmdiocb, rspiocb);
atomic_dec(&phba->fabric_iocb_count);
if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
/* Post any pending iocbs to HBA */
lpfc_resume_fabric_iocbs(phba);
}
}
/**
* lpfc_issue_fabric_iocb - Issue a fabric iocb command
* @phba: pointer to lpfc hba data structure.
* @iocb: pointer to lpfc command iocb data structure.
*
* This routine is used as the top-level API for issuing a fabric iocb command
* such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
* function makes sure that only one fabric bound iocb will be outstanding at
* any given time. As such, this function will first check to see whether there
* is already an outstanding fabric iocb on the wire. If so, it will put the
* newly issued iocb onto the driver internal fabric iocb list, waiting to be
* issued later. Otherwise, it will issue the iocb on the wire and update the
* fabric iocb count it indicate that there is one fabric iocb on the wire.
*
* Note, this implementation has a potential sending out fabric IOCBs out of
* order. The problem is caused by the construction of the "ready" boolen does
* not include the condition that the internal fabric IOCB list is empty. As
* such, it is possible a fabric IOCB issued by this routine might be "jump"
* ahead of the fabric IOCBs in the internal list.
*
* Return code
* IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
* IOCB_ERROR - failed to issue fabric iocb
**/
static int
lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
{
unsigned long iflags;
int ready;
int ret;
BUG_ON(atomic_read(&phba->fabric_iocb_count) > 1);
spin_lock_irqsave(&phba->hbalock, iflags);
ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
if (ready)
/* Increment fabric iocb count to hold the position */
atomic_inc(&phba->fabric_iocb_count);
spin_unlock_irqrestore(&phba->hbalock, iflags);
if (ready) {
iocb->fabric_cmd_cmpl = iocb->cmd_cmpl;
iocb->cmd_cmpl = lpfc_cmpl_fabric_iocb;
iocb->cmd_flag |= LPFC_IO_FABRIC;
lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
"Fabric sched2: ste:x%x",
iocb->vport->port_state, 0, 0);
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
if (ret == IOCB_ERROR) {
iocb->cmd_cmpl = iocb->fabric_cmd_cmpl;
iocb->fabric_cmd_cmpl = NULL;
iocb->cmd_flag &= ~LPFC_IO_FABRIC;
atomic_dec(&phba->fabric_iocb_count);
}
} else {
spin_lock_irqsave(&phba->hbalock, iflags);
list_add_tail(&iocb->list, &phba->fabric_iocb_list);
spin_unlock_irqrestore(&phba->hbalock, iflags);
ret = IOCB_SUCCESS;
}
return ret;
}
/**
* lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
* @vport: pointer to a virtual N_Port data structure.
*
* This routine aborts all the IOCBs associated with a @vport from the
* driver internal fabric IOCB list. The list contains fabric IOCBs to be
* issued to the ELS IOCB ring. This abort function walks the fabric IOCB
* list, removes each IOCB associated with the @vport off the list, set the
* status field to IOSTAT_LOCAL_REJECT, and invokes the callback function
* associated with the IOCB.
**/
static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
{
LIST_HEAD(completions);
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *tmp_iocb, *piocb;
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
list) {
if (piocb->vport != vport)
continue;
list_move_tail(&piocb->list, &completions);
}
spin_unlock_irq(&phba->hbalock);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
}
/**
* lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
* @ndlp: pointer to a node-list data structure.
*
* This routine aborts all the IOCBs associated with an @ndlp from the
* driver internal fabric IOCB list. The list contains fabric IOCBs to be
* issued to the ELS IOCB ring. This abort function walks the fabric IOCB
* list, removes each IOCB associated with the @ndlp off the list, set the
* status field to IOSTAT_LOCAL_REJECT, and invokes the callback function
* associated with the IOCB.
**/
void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
{
LIST_HEAD(completions);
struct lpfc_hba *phba = ndlp->phba;
struct lpfc_iocbq *tmp_iocb, *piocb;
struct lpfc_sli_ring *pring;
pring = lpfc_phba_elsring(phba);
if (unlikely(!pring))
return;
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
list) {
if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
list_move_tail(&piocb->list, &completions);
}
}
spin_unlock_irq(&phba->hbalock);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
}
/**
* lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
* @phba: pointer to lpfc hba data structure.
*
* This routine aborts all the IOCBs currently on the driver internal
* fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
* IOCB ring. This function takes the entire IOCB list off the fabric IOCB
* list, removes IOCBs off the list, set the status field to
* IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
* the IOCB.
**/
void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
{
LIST_HEAD(completions);
spin_lock_irq(&phba->hbalock);
list_splice_init(&phba->fabric_iocb_list, &completions);
spin_unlock_irq(&phba->hbalock);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
}
/**
* lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
* @vport: pointer to lpfc vport data structure.
*
* This routine is invoked by the vport cleanup for deletions and the cleanup
* for an ndlp on removal.
**/
void
lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
struct lpfc_nodelist *ndlp = NULL;
unsigned long iflag = 0;
spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag);
list_for_each_entry_safe(sglq_entry, sglq_next,
&phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport) {
lpfc_nlp_put(sglq_entry->ndlp);
ndlp = sglq_entry->ndlp;
sglq_entry->ndlp = NULL;
/* If the xri on the abts_els_sgl list is for the Fport
* node and the vport is unloading, the xri aborted wcqe
* likely isn't coming back. Just release the sgl.
*/
if ((vport->load_flag & FC_UNLOADING) &&
ndlp->nlp_DID == Fabric_DID) {
list_del(&sglq_entry->list);
sglq_entry->state = SGL_FREED;
list_add_tail(&sglq_entry->list,
&phba->sli4_hba.lpfc_els_sgl_list);
}
}
}
spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag);
return;
}
/**
* lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
* @phba: pointer to lpfc hba data structure.
* @axri: pointer to the els xri abort wcqe structure.
*
* This routine is invoked by the worker thread to process a SLI4 slow-path
* ELS aborted xri.
**/
void
lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
struct sli4_wcqe_xri_aborted *axri)
{
uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
uint16_t lxri = 0;
struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
unsigned long iflag = 0;
struct lpfc_nodelist *ndlp;
struct lpfc_sli_ring *pring;
pring = lpfc_phba_elsring(phba);
spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock, iflag);
list_for_each_entry_safe(sglq_entry, sglq_next,
&phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
if (sglq_entry->sli4_xritag == xri) {
list_del(&sglq_entry->list);
ndlp = sglq_entry->ndlp;
sglq_entry->ndlp = NULL;
list_add_tail(&sglq_entry->list,
&phba->sli4_hba.lpfc_els_sgl_list);
sglq_entry->state = SGL_FREED;
spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock,
iflag);
if (ndlp) {
lpfc_set_rrq_active(phba, ndlp,
sglq_entry->sli4_lxritag,
rxid, 1);
lpfc_nlp_put(ndlp);
}
/* Check if TXQ queue needs to be serviced */
if (pring && !list_empty(&pring->txq))
lpfc_worker_wake_up(phba);
return;
}
}
spin_unlock_irqrestore(&phba->sli4_hba.sgl_list_lock, iflag);
lxri = lpfc_sli4_xri_inrange(phba, xri);
if (lxri == NO_XRI)
return;
spin_lock_irqsave(&phba->hbalock, iflag);
sglq_entry = __lpfc_get_active_sglq(phba, lxri);
if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
spin_unlock_irqrestore(&phba->hbalock, iflag);
return;
}
sglq_entry->state = SGL_XRI_ABORTED;
spin_unlock_irqrestore(&phba->hbalock, iflag);
return;
}
/* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
* @vport: pointer to virtual port object.
* @ndlp: nodelist pointer for the impacted node.
*
* The driver calls this routine in response to an SLI4 XRI ABORT CQE
* or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
* the driver is required to send a LOGO to the remote node before it
* attempts to recover its login to the remote node.
*/
void
lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost;
struct lpfc_hba *phba;
unsigned long flags = 0;
shost = lpfc_shost_from_vport(vport);
phba = vport->phba;
if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
lpfc_printf_log(phba, KERN_INFO,
LOG_SLI, "3093 No rport recovery needed. "
"rport in state 0x%x\n", ndlp->nlp_state);
return;
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3094 Start rport recovery on shost id 0x%x "
"fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
"flags 0x%x\n",
shost->host_no, ndlp->nlp_DID,
vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
ndlp->nlp_flag);
/*
* The rport is not responding. Remove the FCP-2 flag to prevent
* an ADISC in the follow-up recovery code.
*/
spin_lock_irqsave(&ndlp->lock, flags);
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
ndlp->nlp_flag |= NLP_ISSUE_LOGO;
spin_unlock_irqrestore(&ndlp->lock, flags);
lpfc_unreg_rpi(vport, ndlp);
}
static void lpfc_init_cs_ctl_bitmap(struct lpfc_vport *vport)
{
bitmap_zero(vport->vmid_priority_range, LPFC_VMID_MAX_PRIORITY_RANGE);
}
static void
lpfc_vmid_set_cs_ctl_range(struct lpfc_vport *vport, u32 min, u32 max)
{
u32 i;
if ((min > max) || (max > LPFC_VMID_MAX_PRIORITY_RANGE))
return;
for (i = min; i <= max; i++)
set_bit(i, vport->vmid_priority_range);
}
static void lpfc_vmid_put_cs_ctl(struct lpfc_vport *vport, u32 ctcl_vmid)
{
set_bit(ctcl_vmid, vport->vmid_priority_range);
}
u32 lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport)
{
u32 i;
i = find_first_bit(vport->vmid_priority_range,
LPFC_VMID_MAX_PRIORITY_RANGE);
if (i == LPFC_VMID_MAX_PRIORITY_RANGE)
return 0;
clear_bit(i, vport->vmid_priority_range);
return i;
}
#define MAX_PRIORITY_DESC 255
static void
lpfc_cmpl_els_qfpa(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct priority_range_desc *desc;
struct lpfc_dmabuf *prsp = NULL;
struct lpfc_vmid_priority_range *vmid_range = NULL;
u32 *data;
struct lpfc_dmabuf *dmabuf = cmdiocb->cmd_dmabuf;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
u8 *pcmd, max_desc;
u32 len, i;
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list);
if (!prsp)
goto out;
pcmd = prsp->virt;
data = (u32 *)pcmd;
if (data[0] == ELS_CMD_LS_RJT) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
"3277 QFPA LS_RJT x%x x%x\n",
data[0], data[1]);
goto out;
}
if (ulp_status) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
"6529 QFPA failed with status x%x x%x\n",
ulp_status, ulp_word4);
goto out;
}
if (!vport->qfpa_res) {
max_desc = FCELSSIZE / sizeof(*vport->qfpa_res);
vport->qfpa_res = kcalloc(max_desc, sizeof(*vport->qfpa_res),
GFP_KERNEL);
if (!vport->qfpa_res)
goto out;
}
len = *((u32 *)(pcmd + 4));
len = be32_to_cpu(len);
memcpy(vport->qfpa_res, pcmd, len + 8);
len = len / LPFC_PRIORITY_RANGE_DESC_SIZE;
desc = (struct priority_range_desc *)(pcmd + 8);
vmid_range = vport->vmid_priority.vmid_range;
if (!vmid_range) {
vmid_range = kcalloc(MAX_PRIORITY_DESC, sizeof(*vmid_range),
GFP_KERNEL);
if (!vmid_range) {
kfree(vport->qfpa_res);
goto out;
}
vport->vmid_priority.vmid_range = vmid_range;
}
vport->vmid_priority.num_descriptors = len;
for (i = 0; i < len; i++, vmid_range++, desc++) {
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS,
"6539 vmid values low=%d, high=%d, qos=%d, "
"local ve id=%d\n", desc->lo_range,
desc->hi_range, desc->qos_priority,
desc->local_ve_id);
vmid_range->low = desc->lo_range << 1;
if (desc->local_ve_id == QFPA_ODD_ONLY)
vmid_range->low++;
if (desc->qos_priority)
vport->vmid_flag |= LPFC_VMID_QOS_ENABLED;
vmid_range->qos = desc->qos_priority;
vmid_range->high = desc->hi_range << 1;
if ((desc->local_ve_id == QFPA_ODD_ONLY) ||
(desc->local_ve_id == QFPA_EVEN_ODD))
vmid_range->high++;
}
lpfc_init_cs_ctl_bitmap(vport);
for (i = 0; i < vport->vmid_priority.num_descriptors; i++) {
lpfc_vmid_set_cs_ctl_range(vport,
vport->vmid_priority.vmid_range[i].low,
vport->vmid_priority.vmid_range[i].high);
}
vport->vmid_flag |= LPFC_VMID_QFPA_CMPL;
out:
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
int lpfc_issue_els_qfpa(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp;
struct lpfc_iocbq *elsiocb;
u8 *pcmd;
int ret;
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
return -ENXIO;
elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_QFPA_SIZE, 2, ndlp,
ndlp->nlp_DID, ELS_CMD_QFPA);
if (!elsiocb)
return -ENOMEM;
pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
*((u32 *)(pcmd)) = ELS_CMD_QFPA;
pcmd += 4;
elsiocb->cmd_cmpl = lpfc_cmpl_els_qfpa;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(vport->phba, elsiocb);
return -ENXIO;
}
ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 2);
if (ret != IOCB_SUCCESS) {
lpfc_els_free_iocb(phba, elsiocb);
lpfc_nlp_put(ndlp);
return -EIO;
}
vport->vmid_flag &= ~LPFC_VMID_QOS_ENABLED;
return 0;
}
int
lpfc_vmid_uvem(struct lpfc_vport *vport,
struct lpfc_vmid *vmid, bool instantiated)
{
struct lpfc_vem_id_desc *vem_id_desc;
struct lpfc_nodelist *ndlp;
struct lpfc_iocbq *elsiocb;
struct instantiated_ve_desc *inst_desc;
struct lpfc_vmid_context *vmid_context;
u8 *pcmd;
u32 *len;
int ret = 0;
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
return -ENXIO;
vmid_context = kmalloc(sizeof(*vmid_context), GFP_KERNEL);
if (!vmid_context)
return -ENOMEM;
elsiocb = lpfc_prep_els_iocb(vport, 1, LPFC_UVEM_SIZE, 2,
ndlp, Fabric_DID, ELS_CMD_UVEM);
if (!elsiocb)
goto out;
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_ELS,
"3427 Host vmid %s %d\n",
vmid->host_vmid, instantiated);
vmid_context->vmp = vmid;
vmid_context->nlp = ndlp;
vmid_context->instantiated = instantiated;
elsiocb->vmid_tag.vmid_context = vmid_context;
pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0,
sizeof(vport->lpfc_vmid_host_uuid)))
memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid,
sizeof(vport->lpfc_vmid_host_uuid));
*((u32 *)(pcmd)) = ELS_CMD_UVEM;
len = (u32 *)(pcmd + 4);
*len = cpu_to_be32(LPFC_UVEM_SIZE - 8);
vem_id_desc = (struct lpfc_vem_id_desc *)(pcmd + 8);
vem_id_desc->tag = be32_to_cpu(VEM_ID_DESC_TAG);
vem_id_desc->length = be32_to_cpu(LPFC_UVEM_VEM_ID_DESC_SIZE);
memcpy(vem_id_desc->vem_id, vport->lpfc_vmid_host_uuid,
sizeof(vem_id_desc->vem_id));
inst_desc = (struct instantiated_ve_desc *)(pcmd + 32);
inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG);
inst_desc->length = be32_to_cpu(LPFC_UVEM_VE_MAP_DESC_SIZE);
memcpy(inst_desc->global_vem_id, vmid->host_vmid,
sizeof(inst_desc->global_vem_id));
bf_set(lpfc_instantiated_nport_id, inst_desc, vport->fc_myDID);
bf_set(lpfc_instantiated_local_id, inst_desc,
vmid->un.cs_ctl_vmid);
if (instantiated) {
inst_desc->tag = be32_to_cpu(INSTANTIATED_VE_DESC_TAG);
} else {
inst_desc->tag = be32_to_cpu(DEINSTANTIATED_VE_DESC_TAG);
lpfc_vmid_put_cs_ctl(vport, vmid->un.cs_ctl_vmid);
}
inst_desc->word6 = cpu_to_be32(inst_desc->word6);
elsiocb->cmd_cmpl = lpfc_cmpl_els_uvem;
elsiocb->ndlp = lpfc_nlp_get(ndlp);
if (!elsiocb->ndlp) {
lpfc_els_free_iocb(vport->phba, elsiocb);
goto out;
}
ret = lpfc_sli_issue_iocb(vport->phba, LPFC_ELS_RING, elsiocb, 0);
if (ret != IOCB_SUCCESS) {
lpfc_els_free_iocb(vport->phba, elsiocb);
lpfc_nlp_put(ndlp);
goto out;
}
return 0;
out:
kfree(vmid_context);
return -EIO;
}
static void
lpfc_cmpl_els_uvem(struct lpfc_hba *phba, struct lpfc_iocbq *icmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = icmdiocb->vport;
struct lpfc_dmabuf *prsp = NULL;
struct lpfc_vmid_context *vmid_context =
icmdiocb->vmid_tag.vmid_context;
struct lpfc_nodelist *ndlp = icmdiocb->ndlp;
u8 *pcmd;
u32 *data;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
struct lpfc_dmabuf *dmabuf = icmdiocb->cmd_dmabuf;
struct lpfc_vmid *vmid;
vmid = vmid_context->vmp;
if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
ndlp = NULL;
prsp = list_get_first(&dmabuf->list, struct lpfc_dmabuf, list);
if (!prsp)
goto out;
pcmd = prsp->virt;
data = (u32 *)pcmd;
if (data[0] == ELS_CMD_LS_RJT) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
"4532 UVEM LS_RJT %x %x\n", data[0], data[1]);
goto out;
}
if (ulp_status) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI,
"4533 UVEM error status %x: %x\n",
ulp_status, ulp_word4);
goto out;
}
spin_lock(&phba->hbalock);
/* Set IN USE flag */
vport->vmid_flag |= LPFC_VMID_IN_USE;
phba->pport->vmid_flag |= LPFC_VMID_IN_USE;
spin_unlock(&phba->hbalock);
if (vmid_context->instantiated) {
write_lock(&vport->vmid_lock);
vmid->flag |= LPFC_VMID_REGISTERED;
vmid->flag &= ~LPFC_VMID_REQ_REGISTER;
write_unlock(&vport->vmid_lock);
}
out:
kfree(vmid_context);
lpfc_els_free_iocb(phba, icmdiocb);
lpfc_nlp_put(ndlp);
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_els.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/kthread.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/sched/clock.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/firmware.h>
#include <linux/miscdevice.h>
#include <linux/percpu.h>
#include <linux/irq.h>
#include <linux/bitops.h>
#include <linux/crash_dump.h>
#include <linux/cpu.h>
#include <linux/cpuhotplug.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi_tcq.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_version.h"
#include "lpfc_ids.h"
static enum cpuhp_state lpfc_cpuhp_state;
/* Used when mapping IRQ vectors in a driver centric manner */
static uint32_t lpfc_present_cpu;
static bool lpfc_pldv_detect;
static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
static void lpfc_cpuhp_add(struct lpfc_hba *phba);
static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
static int lpfc_post_rcv_buf(struct lpfc_hba *);
static int lpfc_sli4_queue_verify(struct lpfc_hba *);
static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
static int lpfc_setup_endian_order(struct lpfc_hba *);
static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
static void lpfc_free_els_sgl_list(struct lpfc_hba *);
static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
static void lpfc_init_sgl_list(struct lpfc_hba *);
static int lpfc_init_active_sgl_array(struct lpfc_hba *);
static void lpfc_free_active_sgl(struct lpfc_hba *);
static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
static void lpfc_sli4_disable_intr(struct lpfc_hba *);
static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
static void lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba);
static struct scsi_transport_template *lpfc_transport_template = NULL;
static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
static DEFINE_IDR(lpfc_hba_index);
#define LPFC_NVMET_BUF_POST 254
static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
static void lpfc_cgn_update_tstamp(struct lpfc_hba *phba, struct lpfc_cgn_ts *ts);
/**
* lpfc_config_port_prep - Perform lpfc initialization prior to config port
* @phba: pointer to lpfc hba data structure.
*
* This routine will do LPFC initialization prior to issuing the CONFIG_PORT
* mailbox command. It retrieves the revision information from the HBA and
* collects the Vital Product Data (VPD) about the HBA for preparing the
* configuration of the HBA.
*
* Return codes:
* 0 - success.
* -ERESTART - requests the SLI layer to reset the HBA and try again.
* Any other value - indicates an error.
**/
int
lpfc_config_port_prep(struct lpfc_hba *phba)
{
lpfc_vpd_t *vp = &phba->vpd;
int i = 0, rc;
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
char *lpfc_vpd_data = NULL;
uint16_t offset = 0;
static char licensed[56] =
"key unlock for use with gnu public licensed code only\0";
static int init_key = 1;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->u.mb;
phba->link_state = LPFC_INIT_MBX_CMDS;
if (lpfc_is_LC_HBA(phba->pcidev->device)) {
if (init_key) {
uint32_t *ptext = (uint32_t *) licensed;
for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
*ptext = cpu_to_be32(*ptext);
init_key = 0;
}
lpfc_read_nv(phba, pmb);
memset((char*)mb->un.varRDnvp.rsvd3, 0,
sizeof (mb->un.varRDnvp.rsvd3));
memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
sizeof (licensed));
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0324 Config Port initialization "
"error, mbxCmd x%x READ_NVPARM, "
"mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
mempool_free(pmb, phba->mbox_mem_pool);
return -ERESTART;
}
memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
sizeof(phba->wwnn));
memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
sizeof(phba->wwpn));
}
/*
* Clear all option bits except LPFC_SLI3_BG_ENABLED,
* which was already set in lpfc_get_cfgparam()
*/
phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
/* Setup and issue mailbox READ REV command */
lpfc_read_rev(phba, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0439 Adapter failed to init, mbxCmd x%x "
"READ_REV, mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
mempool_free( pmb, phba->mbox_mem_pool);
return -ERESTART;
}
/*
* The value of rr must be 1 since the driver set the cv field to 1.
* This setting requires the FW to set all revision fields.
*/
if (mb->un.varRdRev.rr == 0) {
vp->rev.rBit = 0;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0440 Adapter failed to init, READ_REV has "
"missing revision information.\n");
mempool_free(pmb, phba->mbox_mem_pool);
return -ERESTART;
}
if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
mempool_free(pmb, phba->mbox_mem_pool);
return -EINVAL;
}
/* Save information as VPD data */
vp->rev.rBit = 1;
memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
vp->rev.biuRev = mb->un.varRdRev.biuRev;
vp->rev.smRev = mb->un.varRdRev.smRev;
vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
vp->rev.endecRev = mb->un.varRdRev.endecRev;
vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
/* If the sli feature level is less then 9, we must
* tear down all RPIs and VPIs on link down if NPIV
* is enabled.
*/
if (vp->rev.feaLevelHigh < 9)
phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
if (lpfc_is_LC_HBA(phba->pcidev->device))
memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
sizeof (phba->RandomData));
/* Get adapter VPD information */
lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
if (!lpfc_vpd_data)
goto out_free_mbox;
do {
lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0441 VPD not present on adapter, "
"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
mb->un.varDmp.word_cnt = 0;
}
/* dump mem may return a zero when finished or we got a
* mailbox error, either way we are done.
*/
if (mb->un.varDmp.word_cnt == 0)
break;
if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
lpfc_vpd_data + offset,
mb->un.varDmp.word_cnt);
offset += mb->un.varDmp.word_cnt;
} while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
kfree(lpfc_vpd_data);
out_free_mbox:
mempool_free(pmb, phba->mbox_mem_pool);
return 0;
}
/**
* lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
* @phba: pointer to lpfc hba data structure.
* @pmboxq: pointer to the driver internal queue element for mailbox command.
*
* This is the completion handler for driver's configuring asynchronous event
* mailbox command to the device. If the mailbox command returns successfully,
* it will set internal async event support flag to 1; otherwise, it will
* set internal async event support flag to 0.
**/
static void
lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
{
if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
phba->temp_sensor_support = 1;
else
phba->temp_sensor_support = 0;
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
* @phba: pointer to lpfc hba data structure.
* @pmboxq: pointer to the driver internal queue element for mailbox command.
*
* This is the completion handler for dump mailbox command for getting
* wake up parameters. When this command complete, the response contain
* Option rom version of the HBA. This function translate the version number
* into a human readable string and store it in OptionROMVersion.
**/
static void
lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
struct prog_id *prg;
uint32_t prog_id_word;
char dist = ' ';
/* character array used for decoding dist type. */
char dist_char[] = "nabx";
if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
prg = (struct prog_id *) &prog_id_word;
/* word 7 contain option rom version */
prog_id_word = pmboxq->u.mb.un.varWords[7];
/* Decode the Option rom version word to a readable string */
dist = dist_char[prg->dist];
if ((prg->dist == 3) && (prg->num == 0))
snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
prg->ver, prg->rev, prg->lev);
else
snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
prg->ver, prg->rev, prg->lev,
dist, prg->num);
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
* @vport: pointer to lpfc vport data structure.
*
*
* Return codes
* None.
**/
void
lpfc_update_vport_wwn(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
/*
* If the name is empty or there exists a soft name
* then copy the service params name, otherwise use the fc name
*/
if (vport->fc_nodename.u.wwn[0] == 0)
memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
sizeof(struct lpfc_name));
else
memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
sizeof(struct lpfc_name));
/*
* If the port name has changed, then set the Param changes flag
* to unreg the login
*/
if (vport->fc_portname.u.wwn[0] != 0 &&
memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(struct lpfc_name))) {
vport->vport_flag |= FAWWPN_PARAM_CHG;
if (phba->sli_rev == LPFC_SLI_REV4 &&
vport->port_type == LPFC_PHYSICAL_PORT &&
phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_FABRIC) {
if (!(phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG))
phba->sli4_hba.fawwpn_flag &=
~LPFC_FAWWPN_FABRIC;
lpfc_printf_log(phba, KERN_INFO,
LOG_SLI | LOG_DISCOVERY | LOG_ELS,
"2701 FA-PWWN change WWPN from %llx to "
"%llx: vflag x%x fawwpn_flag x%x\n",
wwn_to_u64(vport->fc_portname.u.wwn),
wwn_to_u64
(vport->fc_sparam.portName.u.wwn),
vport->vport_flag,
phba->sli4_hba.fawwpn_flag);
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(struct lpfc_name));
}
}
if (vport->fc_portname.u.wwn[0] == 0)
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(struct lpfc_name));
else
memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
sizeof(struct lpfc_name));
}
/**
* lpfc_config_port_post - Perform lpfc initialization after config port
* @phba: pointer to lpfc hba data structure.
*
* This routine will do LPFC initialization after the CONFIG_PORT mailbox
* command call. It performs all internal resource and state setups on the
* port: post IOCB buffers, enable appropriate host interrupt attentions,
* ELS ring timers, etc.
*
* Return codes
* 0 - success.
* Any other value - error.
**/
int
lpfc_config_port_post(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
struct lpfc_dmabuf *mp;
struct lpfc_sli *psli = &phba->sli;
uint32_t status, timeout;
int i, j;
int rc;
spin_lock_irq(&phba->hbalock);
/*
* If the Config port completed correctly the HBA is not
* over heated any more.
*/
if (phba->over_temp_state == HBA_OVER_TEMP)
phba->over_temp_state = HBA_NORMAL_TEMP;
spin_unlock_irq(&phba->hbalock);
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->u.mb;
/* Get login parameters for NID. */
rc = lpfc_read_sparam(phba, pmb, 0);
if (rc) {
mempool_free(pmb, phba->mbox_mem_pool);
return -ENOMEM;
}
pmb->vport = vport;
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0448 Adapter failed init, mbxCmd x%x "
"READ_SPARM mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
phba->link_state = LPFC_HBA_ERROR;
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
return -EIO;
}
mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
/* This dmabuf was allocated by lpfc_read_sparam. The dmabuf is no
* longer needed. Prevent unintended ctx_buf access as the mbox is
* reused.
*/
memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
pmb->ctx_buf = NULL;
lpfc_update_vport_wwn(vport);
/* Update the fc_host data structures with new wwn. */
fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
fc_host_max_npiv_vports(shost) = phba->max_vpi;
/* If no serial number in VPD data, use low 6 bytes of WWNN */
/* This should be consolidated into parse_vpd ? - mr */
if (phba->SerialNumber[0] == 0) {
uint8_t *outptr;
outptr = &vport->fc_nodename.u.s.IEEE[0];
for (i = 0; i < 12; i++) {
status = *outptr++;
j = ((status & 0xf0) >> 4);
if (j <= 9)
phba->SerialNumber[i] =
(char)((uint8_t) 0x30 + (uint8_t) j);
else
phba->SerialNumber[i] =
(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
i++;
j = (status & 0xf);
if (j <= 9)
phba->SerialNumber[i] =
(char)((uint8_t) 0x30 + (uint8_t) j);
else
phba->SerialNumber[i] =
(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
}
}
lpfc_read_config(phba, pmb);
pmb->vport = vport;
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0453 Adapter failed to init, mbxCmd x%x "
"READ_CONFIG, mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
phba->link_state = LPFC_HBA_ERROR;
mempool_free( pmb, phba->mbox_mem_pool);
return -EIO;
}
/* Check if the port is disabled */
lpfc_sli_read_link_ste(phba);
/* Reset the DFT_HBA_Q_DEPTH to the max xri */
if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"3359 HBA queue depth changed from %d to %d\n",
phba->cfg_hba_queue_depth,
mb->un.varRdConfig.max_xri);
phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
}
phba->lmt = mb->un.varRdConfig.lmt;
/* Get the default values for Model Name and Description */
lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
phba->link_state = LPFC_LINK_DOWN;
/* Only process IOCBs on ELS ring till hba_state is READY */
if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
/* Post receive buffers for desired rings */
if (phba->sli_rev != 3)
lpfc_post_rcv_buf(phba);
/*
* Configure HBA MSI-X attention conditions to messages if MSI-X mode
*/
if (phba->intr_type == MSIX) {
rc = lpfc_config_msi(phba, pmb);
if (rc) {
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0352 Config MSI mailbox command "
"failed, mbxCmd x%x, mbxStatus x%x\n",
pmb->u.mb.mbxCommand,
pmb->u.mb.mbxStatus);
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
}
spin_lock_irq(&phba->hbalock);
/* Initialize ERATT handling flag */
phba->hba_flag &= ~HBA_ERATT_HANDLED;
/* Enable appropriate host interrupts */
if (lpfc_readl(phba->HCregaddr, &status)) {
spin_unlock_irq(&phba->hbalock);
return -EIO;
}
status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
if (psli->num_rings > 0)
status |= HC_R0INT_ENA;
if (psli->num_rings > 1)
status |= HC_R1INT_ENA;
if (psli->num_rings > 2)
status |= HC_R2INT_ENA;
if (psli->num_rings > 3)
status |= HC_R3INT_ENA;
if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
(phba->cfg_poll & DISABLE_FCP_RING_INT))
status &= ~(HC_R0INT_ENA);
writel(status, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
spin_unlock_irq(&phba->hbalock);
/* Set up ring-0 (ELS) timer */
timeout = phba->fc_ratov * 2;
mod_timer(&vport->els_tmofunc,
jiffies + msecs_to_jiffies(1000 * timeout));
/* Set up heart beat (HB) timer */
mod_timer(&phba->hb_tmofunc,
jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
phba->last_completion_time = jiffies;
/* Set up error attention (ERATT) polling timer */
mod_timer(&phba->eratt_poll,
jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
if (phba->hba_flag & LINK_DISABLED) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2598 Adapter Link is disabled.\n");
lpfc_down_link(phba, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2599 Adapter failed to issue DOWN_LINK"
" mbox command rc 0x%x\n", rc);
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
mempool_free(pmb, phba->mbox_mem_pool);
rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
if (rc)
return rc;
}
/* MBOX buffer will be freed in mbox compl */
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
lpfc_config_async(phba, pmb, LPFC_ELS_RING);
pmb->mbox_cmpl = lpfc_config_async_cmpl;
pmb->vport = phba->pport;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0456 Adapter failed to issue "
"ASYNCEVT_ENABLE mbox status x%x\n",
rc);
mempool_free(pmb, phba->mbox_mem_pool);
}
/* Get Option rom version */
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
lpfc_dump_wakeup_param(phba, pmb);
pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
pmb->vport = phba->pport;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0435 Adapter failed "
"to get Option ROM version status x%x\n", rc);
mempool_free(pmb, phba->mbox_mem_pool);
}
return 0;
}
/**
* lpfc_sli4_refresh_params - update driver copy of params.
* @phba: Pointer to HBA context object.
*
* This is called to refresh driver copy of dynamic fields from the
* common_get_sli4_parameters descriptor.
**/
int
lpfc_sli4_refresh_params(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
struct lpfc_mqe *mqe;
struct lpfc_sli4_parameters *mbx_sli4_parameters;
int length, rc;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
mqe = &mboxq->u.mqe;
/* Read the port's SLI4 Config Parameters */
length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
length, LPFC_SLI4_MBX_EMBED);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (unlikely(rc)) {
mempool_free(mboxq, phba->mbox_mem_pool);
return rc;
}
mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
phba->sli4_hba.pc_sli4_params.mi_cap =
bf_get(cfg_mi_ver, mbx_sli4_parameters);
/* Are we forcing MI off via module parameter? */
if (phba->cfg_enable_mi)
phba->sli4_hba.pc_sli4_params.mi_ver =
bf_get(cfg_mi_ver, mbx_sli4_parameters);
else
phba->sli4_hba.pc_sli4_params.mi_ver = 0;
phba->sli4_hba.pc_sli4_params.cmf =
bf_get(cfg_cmf, mbx_sli4_parameters);
phba->sli4_hba.pc_sli4_params.pls =
bf_get(cfg_pvl, mbx_sli4_parameters);
mempool_free(mboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_hba_init_link - Initialize the FC link
* @phba: pointer to lpfc hba data structure.
* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
*
* This routine will issue the INIT_LINK mailbox command call.
* It is available to other drivers through the lpfc_hba data
* structure for use as a delayed link up mechanism with the
* module parameter lpfc_suppress_link_up.
*
* Return code
* 0 - success
* Any other value - error
**/
static int
lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
{
return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
}
/**
* lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
* @phba: pointer to lpfc hba data structure.
* @fc_topology: desired fc topology.
* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
*
* This routine will issue the INIT_LINK mailbox command call.
* It is available to other drivers through the lpfc_hba data
* structure for use as a delayed link up mechanism with the
* module parameter lpfc_suppress_link_up.
*
* Return code
* 0 - success
* Any other value - error
**/
int
lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
uint32_t flag)
{
struct lpfc_vport *vport = phba->pport;
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
int rc;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->u.mb;
pmb->vport = vport;
if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
!(phba->lmt & LMT_1Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
!(phba->lmt & LMT_2Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
!(phba->lmt & LMT_4Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
!(phba->lmt & LMT_8Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
!(phba->lmt & LMT_10Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
!(phba->lmt & LMT_16Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
!(phba->lmt & LMT_32Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
!(phba->lmt & LMT_64Gb))) {
/* Reset link speed to auto */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1302 Invalid speed for this board:%d "
"Reset link speed to auto.\n",
phba->cfg_link_speed);
phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
}
lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
if (phba->sli_rev < LPFC_SLI_REV4)
lpfc_set_loopback_flag(phba);
rc = lpfc_sli_issue_mbox(phba, pmb, flag);
if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0498 Adapter failed to init, mbxCmd x%x "
"INIT_LINK, mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
if (phba->sli_rev <= LPFC_SLI_REV3) {
/* Clear all interrupt enable conditions */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* Clear all pending interrupts */
writel(0xffffffff, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
}
phba->link_state = LPFC_HBA_ERROR;
if (rc != MBX_BUSY || flag == MBX_POLL)
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
if (flag == MBX_POLL)
mempool_free(pmb, phba->mbox_mem_pool);
return 0;
}
/**
* lpfc_hba_down_link - this routine downs the FC link
* @phba: pointer to lpfc hba data structure.
* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
*
* This routine will issue the DOWN_LINK mailbox command call.
* It is available to other drivers through the lpfc_hba data
* structure for use to stop the link.
*
* Return code
* 0 - success
* Any other value - error
**/
static int
lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
{
LPFC_MBOXQ_t *pmb;
int rc;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0491 Adapter Link is disabled.\n");
lpfc_down_link(phba, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, flag);
if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2522 Adapter failed to issue DOWN_LINK"
" mbox command rc 0x%x\n", rc);
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
if (flag == MBX_POLL)
mempool_free(pmb, phba->mbox_mem_pool);
return 0;
}
/**
* lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
* @phba: pointer to lpfc HBA data structure.
*
* This routine will do LPFC uninitialization before the HBA is reset when
* bringing down the SLI Layer.
*
* Return codes
* 0 - success.
* Any other value - error.
**/
int
lpfc_hba_down_prep(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i;
if (phba->sli_rev <= LPFC_SLI_REV3) {
/* Disable interrupts */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
if (phba->pport->load_flag & FC_UNLOADING)
lpfc_cleanup_discovery_resources(phba->pport);
else {
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports &&
vports[i] != NULL; i++)
lpfc_cleanup_discovery_resources(vports[i]);
lpfc_destroy_vport_work_array(phba, vports);
}
return 0;
}
/**
* lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
* rspiocb which got deferred
*
* @phba: pointer to lpfc HBA data structure.
*
* This routine will cleanup completed slow path events after HBA is reset
* when bringing down the SLI Layer.
*
*
* Return codes
* void.
**/
static void
lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
{
struct lpfc_iocbq *rspiocbq;
struct hbq_dmabuf *dmabuf;
struct lpfc_cq_event *cq_event;
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
spin_unlock_irq(&phba->hbalock);
while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
/* Get the response iocb from the head of work queue */
spin_lock_irq(&phba->hbalock);
list_remove_head(&phba->sli4_hba.sp_queue_event,
cq_event, struct lpfc_cq_event, list);
spin_unlock_irq(&phba->hbalock);
switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
case CQE_CODE_COMPL_WQE:
rspiocbq = container_of(cq_event, struct lpfc_iocbq,
cq_event);
lpfc_sli_release_iocbq(phba, rspiocbq);
break;
case CQE_CODE_RECEIVE:
case CQE_CODE_RECEIVE_V1:
dmabuf = container_of(cq_event, struct hbq_dmabuf,
cq_event);
lpfc_in_buf_free(phba, &dmabuf->dbuf);
}
}
}
/**
* lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
* @phba: pointer to lpfc HBA data structure.
*
* This routine will cleanup posted ELS buffers after the HBA is reset
* when bringing down the SLI Layer.
*
*
* Return codes
* void.
**/
static void
lpfc_hba_free_post_buf(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
struct lpfc_dmabuf *mp, *next_mp;
LIST_HEAD(buflist);
int count;
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
lpfc_sli_hbqbuf_free_all(phba);
else {
/* Cleanup preposted buffers on the ELS ring */
pring = &psli->sli3_ring[LPFC_ELS_RING];
spin_lock_irq(&phba->hbalock);
list_splice_init(&pring->postbufq, &buflist);
spin_unlock_irq(&phba->hbalock);
count = 0;
list_for_each_entry_safe(mp, next_mp, &buflist, list) {
list_del(&mp->list);
count++;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
spin_lock_irq(&phba->hbalock);
pring->postbufq_cnt -= count;
spin_unlock_irq(&phba->hbalock);
}
}
/**
* lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
* @phba: pointer to lpfc HBA data structure.
*
* This routine will cleanup the txcmplq after the HBA is reset when bringing
* down the SLI Layer.
*
* Return codes
* void
**/
static void
lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_queue *qp = NULL;
struct lpfc_sli_ring *pring;
LIST_HEAD(completions);
int i;
struct lpfc_iocbq *piocb, *next_iocb;
if (phba->sli_rev != LPFC_SLI_REV4) {
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
spin_lock_irq(&phba->hbalock);
/* At this point in time the HBA is either reset or DOA
* Nothing should be on txcmplq as it will
* NEVER complete.
*/
list_splice_init(&pring->txcmplq, &completions);
pring->txcmplq_cnt = 0;
spin_unlock_irq(&phba->hbalock);
lpfc_sli_abort_iocb_ring(phba, pring);
}
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions,
IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
return;
}
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
pring = qp->pring;
if (!pring)
continue;
spin_lock_irq(&pring->ring_lock);
list_for_each_entry_safe(piocb, next_iocb,
&pring->txcmplq, list)
piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
list_splice_init(&pring->txcmplq, &completions);
pring->txcmplq_cnt = 0;
spin_unlock_irq(&pring->ring_lock);
lpfc_sli_abort_iocb_ring(phba, pring);
}
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions,
IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
}
/**
* lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
* @phba: pointer to lpfc HBA data structure.
*
* This routine will do uninitialization after the HBA is reset when bring
* down the SLI Layer.
*
* Return codes
* 0 - success.
* Any other value - error.
**/
static int
lpfc_hba_down_post_s3(struct lpfc_hba *phba)
{
lpfc_hba_free_post_buf(phba);
lpfc_hba_clean_txcmplq(phba);
return 0;
}
/**
* lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
* @phba: pointer to lpfc HBA data structure.
*
* This routine will do uninitialization after the HBA is reset when bring
* down the SLI Layer.
*
* Return codes
* 0 - success.
* Any other value - error.
**/
static int
lpfc_hba_down_post_s4(struct lpfc_hba *phba)
{
struct lpfc_io_buf *psb, *psb_next;
struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
struct lpfc_sli4_hdw_queue *qp;
LIST_HEAD(aborts);
LIST_HEAD(nvme_aborts);
LIST_HEAD(nvmet_aborts);
struct lpfc_sglq *sglq_entry = NULL;
int cnt, idx;
lpfc_sli_hbqbuf_free_all(phba);
lpfc_hba_clean_txcmplq(phba);
/* At this point in time the HBA is either reset or DOA. Either
* way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
* on the lpfc_els_sgl_list so that it can either be freed if the
* driver is unloading or reposted if the driver is restarting
* the port.
*/
/* sgl_list_lock required because worker thread uses this
* list.
*/
spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
list_for_each_entry(sglq_entry,
&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
sglq_entry->state = SGL_FREED;
list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
&phba->sli4_hba.lpfc_els_sgl_list);
spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
/* abts_xxxx_buf_list_lock required because worker thread uses this
* list.
*/
spin_lock_irq(&phba->hbalock);
cnt = 0;
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
qp = &phba->sli4_hba.hdwq[idx];
spin_lock(&qp->abts_io_buf_list_lock);
list_splice_init(&qp->lpfc_abts_io_buf_list,
&aborts);
list_for_each_entry_safe(psb, psb_next, &aborts, list) {
psb->pCmd = NULL;
psb->status = IOSTAT_SUCCESS;
cnt++;
}
spin_lock(&qp->io_buf_list_put_lock);
list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
qp->put_io_bufs += qp->abts_scsi_io_bufs;
qp->put_io_bufs += qp->abts_nvme_io_bufs;
qp->abts_scsi_io_bufs = 0;
qp->abts_nvme_io_bufs = 0;
spin_unlock(&qp->io_buf_list_put_lock);
spin_unlock(&qp->abts_io_buf_list_lock);
}
spin_unlock_irq(&phba->hbalock);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
&nvmet_aborts);
spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
}
}
lpfc_sli4_free_sp_events(phba);
return cnt;
}
/**
* lpfc_hba_down_post - Wrapper func for hba down post routine
* @phba: pointer to lpfc HBA data structure.
*
* This routine wraps the actual SLI3 or SLI4 routine for performing
* uninitialization after the HBA is reset when bring down the SLI Layer.
*
* Return codes
* 0 - success.
* Any other value - error.
**/
int
lpfc_hba_down_post(struct lpfc_hba *phba)
{
return (*phba->lpfc_hba_down_post)(phba);
}
/**
* lpfc_hb_timeout - The HBA-timer timeout handler
* @t: timer context used to obtain the pointer to lpfc hba data structure.
*
* This is the HBA-timer timeout handler registered to the lpfc driver. When
* this timer fires, a HBA timeout event shall be posted to the lpfc driver
* work-port-events bitmap and the worker thread is notified. This timeout
* event will be used by the worker thread to invoke the actual timeout
* handler routine, lpfc_hb_timeout_handler. Any periodical operations will
* be performed in the timeout handler and the HBA timeout event bit shall
* be cleared by the worker thread after it has taken the event bitmap out.
**/
static void
lpfc_hb_timeout(struct timer_list *t)
{
struct lpfc_hba *phba;
uint32_t tmo_posted;
unsigned long iflag;
phba = from_timer(phba, t, hb_tmofunc);
/* Check for heart beat timeout conditions */
spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
if (!tmo_posted)
phba->pport->work_port_events |= WORKER_HB_TMO;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
/* Tell the worker thread there is work to do */
if (!tmo_posted)
lpfc_worker_wake_up(phba);
return;
}
/**
* lpfc_rrq_timeout - The RRQ-timer timeout handler
* @t: timer context used to obtain the pointer to lpfc hba data structure.
*
* This is the RRQ-timer timeout handler registered to the lpfc driver. When
* this timer fires, a RRQ timeout event shall be posted to the lpfc driver
* work-port-events bitmap and the worker thread is notified. This timeout
* event will be used by the worker thread to invoke the actual timeout
* handler routine, lpfc_rrq_handler. Any periodical operations will
* be performed in the timeout handler and the RRQ timeout event bit shall
* be cleared by the worker thread after it has taken the event bitmap out.
**/
static void
lpfc_rrq_timeout(struct timer_list *t)
{
struct lpfc_hba *phba;
unsigned long iflag;
phba = from_timer(phba, t, rrq_tmr);
spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
if (!(phba->pport->load_flag & FC_UNLOADING))
phba->hba_flag |= HBA_RRQ_ACTIVE;
else
phba->hba_flag &= ~HBA_RRQ_ACTIVE;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
if (!(phba->pport->load_flag & FC_UNLOADING))
lpfc_worker_wake_up(phba);
}
/**
* lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
* @phba: pointer to lpfc hba data structure.
* @pmboxq: pointer to the driver internal queue element for mailbox command.
*
* This is the callback function to the lpfc heart-beat mailbox command.
* If configured, the lpfc driver issues the heart-beat mailbox command to
* the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
* heart-beat mailbox command is issued, the driver shall set up heart-beat
* timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
* heart-beat outstanding state. Once the mailbox command comes back and
* no error conditions detected, the heart-beat mailbox command timer is
* reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
* state is cleared for the next heart-beat. If the timer expired with the
* heart-beat outstanding state set, the driver will put the HBA offline.
**/
static void
lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
{
unsigned long drvr_flag;
spin_lock_irqsave(&phba->hbalock, drvr_flag);
phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
/* Check and reset heart-beat timer if necessary */
mempool_free(pmboxq, phba->mbox_mem_pool);
if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
!(phba->link_state == LPFC_HBA_ERROR) &&
!(phba->pport->load_flag & FC_UNLOADING))
mod_timer(&phba->hb_tmofunc,
jiffies +
msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
return;
}
/*
* lpfc_idle_stat_delay_work - idle_stat tracking
*
* This routine tracks per-eq idle_stat and determines polling decisions.
*
* Return codes:
* None
**/
static void
lpfc_idle_stat_delay_work(struct work_struct *work)
{
struct lpfc_hba *phba = container_of(to_delayed_work(work),
struct lpfc_hba,
idle_stat_delay_work);
struct lpfc_queue *eq;
struct lpfc_sli4_hdw_queue *hdwq;
struct lpfc_idle_stat *idle_stat;
u32 i, idle_percent;
u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
if (phba->pport->load_flag & FC_UNLOADING)
return;
if (phba->link_state == LPFC_HBA_ERROR ||
phba->pport->fc_flag & FC_OFFLINE_MODE ||
phba->cmf_active_mode != LPFC_CFG_OFF)
goto requeue;
for_each_present_cpu(i) {
hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
eq = hdwq->hba_eq;
/* Skip if we've already handled this eq's primary CPU */
if (eq->chann != i)
continue;
idle_stat = &phba->sli4_hba.idle_stat[i];
/* get_cpu_idle_time returns values as running counters. Thus,
* to know the amount for this period, the prior counter values
* need to be subtracted from the current counter values.
* From there, the idle time stat can be calculated as a
* percentage of 100 - the sum of the other consumption times.
*/
wall_idle = get_cpu_idle_time(i, &wall, 1);
diff_idle = wall_idle - idle_stat->prev_idle;
diff_wall = wall - idle_stat->prev_wall;
if (diff_wall <= diff_idle)
busy_time = 0;
else
busy_time = diff_wall - diff_idle;
idle_percent = div64_u64(100 * busy_time, diff_wall);
idle_percent = 100 - idle_percent;
if (idle_percent < 15)
eq->poll_mode = LPFC_QUEUE_WORK;
else
eq->poll_mode = LPFC_THREADED_IRQ;
idle_stat->prev_idle = wall_idle;
idle_stat->prev_wall = wall;
}
requeue:
schedule_delayed_work(&phba->idle_stat_delay_work,
msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
}
static void
lpfc_hb_eq_delay_work(struct work_struct *work)
{
struct lpfc_hba *phba = container_of(to_delayed_work(work),
struct lpfc_hba, eq_delay_work);
struct lpfc_eq_intr_info *eqi, *eqi_new;
struct lpfc_queue *eq, *eq_next;
unsigned char *ena_delay = NULL;
uint32_t usdelay;
int i;
if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
return;
if (phba->link_state == LPFC_HBA_ERROR ||
phba->pport->fc_flag & FC_OFFLINE_MODE)
goto requeue;
ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
GFP_KERNEL);
if (!ena_delay)
goto requeue;
for (i = 0; i < phba->cfg_irq_chann; i++) {
/* Get the EQ corresponding to the IRQ vector */
eq = phba->sli4_hba.hba_eq_hdl[i].eq;
if (!eq)
continue;
if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
eq->q_flag &= ~HBA_EQ_DELAY_CHK;
ena_delay[eq->last_cpu] = 1;
}
}
for_each_present_cpu(i) {
eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
if (ena_delay[i]) {
usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
usdelay = LPFC_MAX_AUTO_EQ_DELAY;
} else {
usdelay = 0;
}
eqi->icnt = 0;
list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
if (unlikely(eq->last_cpu != i)) {
eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
eq->last_cpu);
list_move_tail(&eq->cpu_list, &eqi_new->list);
continue;
}
if (usdelay != eq->q_mode)
lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
usdelay);
}
}
kfree(ena_delay);
requeue:
queue_delayed_work(phba->wq, &phba->eq_delay_work,
msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
}
/**
* lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
* @phba: pointer to lpfc hba data structure.
*
* For each heartbeat, this routine does some heuristic methods to adjust
* XRI distribution. The goal is to fully utilize free XRIs.
**/
static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
{
u32 i;
u32 hwq_count;
hwq_count = phba->cfg_hdw_queue;
for (i = 0; i < hwq_count; i++) {
/* Adjust XRIs in private pool */
lpfc_adjust_pvt_pool_count(phba, i);
/* Adjust high watermark */
lpfc_adjust_high_watermark(phba, i);
#ifdef LPFC_MXP_STAT
/* Snapshot pbl, pvt and busy count */
lpfc_snapshot_mxp(phba, i);
#endif
}
}
/**
* lpfc_issue_hb_mbox - Issues heart-beat mailbox command
* @phba: pointer to lpfc hba data structure.
*
* If a HB mbox is not already in progrees, this routine will allocate
* a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
* and issue it. The HBA_HBEAT_INP flag means the command is in progress.
**/
int
lpfc_issue_hb_mbox(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *pmboxq;
int retval;
/* Is a Heartbeat mbox already in progress */
if (phba->hba_flag & HBA_HBEAT_INP)
return 0;
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq)
return -ENOMEM;
lpfc_heart_beat(phba, pmboxq);
pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
pmboxq->vport = phba->pport;
retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
mempool_free(pmboxq, phba->mbox_mem_pool);
return -ENXIO;
}
phba->hba_flag |= HBA_HBEAT_INP;
return 0;
}
/**
* lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
* @phba: pointer to lpfc hba data structure.
*
* The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
* flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
* of the value of lpfc_enable_hba_heartbeat.
* If lpfc_enable_hba_heartbeat is set, the timeout routine will always
* try to issue a MBX_HEARTBEAT mbox command.
**/
void
lpfc_issue_hb_tmo(struct lpfc_hba *phba)
{
if (phba->cfg_enable_hba_heartbeat)
return;
phba->hba_flag |= HBA_HBEAT_TMO;
}
/**
* lpfc_hb_timeout_handler - The HBA-timer timeout handler
* @phba: pointer to lpfc hba data structure.
*
* This is the actual HBA-timer timeout handler to be invoked by the worker
* thread whenever the HBA timer fired and HBA-timeout event posted. This
* handler performs any periodic operations needed for the device. If such
* periodic event has already been attended to either in the interrupt handler
* or by processing slow-ring or fast-ring events within the HBA-timer
* timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
* the timer for the next timeout period. If lpfc heart-beat mailbox command
* is configured and there is no heart-beat mailbox command outstanding, a
* heart-beat mailbox is issued and timer set properly. Otherwise, if there
* has been a heart-beat mailbox command outstanding, the HBA shall be put
* to offline.
**/
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct lpfc_dmabuf *buf_ptr;
int retval = 0;
int i, tmo;
struct lpfc_sli *psli = &phba->sli;
LIST_HEAD(completions);
if (phba->cfg_xri_rebalancing) {
/* Multi-XRI pools handler */
lpfc_hb_mxp_handler(phba);
}
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
lpfc_rcv_seq_check_edtov(vports[i]);
lpfc_fdmi_change_check(vports[i]);
}
lpfc_destroy_vport_work_array(phba, vports);
if ((phba->link_state == LPFC_HBA_ERROR) ||
(phba->pport->load_flag & FC_UNLOADING) ||
(phba->pport->fc_flag & FC_OFFLINE_MODE))
return;
if (phba->elsbuf_cnt &&
(phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
spin_lock_irq(&phba->hbalock);
list_splice_init(&phba->elsbuf, &completions);
phba->elsbuf_cnt = 0;
phba->elsbuf_prev_cnt = 0;
spin_unlock_irq(&phba->hbalock);
while (!list_empty(&completions)) {
list_remove_head(&completions, buf_ptr,
struct lpfc_dmabuf, list);
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
}
}
phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
/* If there is no heart beat outstanding, issue a heartbeat command */
if (phba->cfg_enable_hba_heartbeat) {
/* If IOs are completing, no need to issue a MBX_HEARTBEAT */
spin_lock_irq(&phba->pport->work_port_lock);
if (time_after(phba->last_completion_time +
msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
jiffies)) {
spin_unlock_irq(&phba->pport->work_port_lock);
if (phba->hba_flag & HBA_HBEAT_INP)
tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
else
tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
goto out;
}
spin_unlock_irq(&phba->pport->work_port_lock);
/* Check if a MBX_HEARTBEAT is already in progress */
if (phba->hba_flag & HBA_HBEAT_INP) {
/*
* If heart beat timeout called with HBA_HBEAT_INP set
* we need to give the hb mailbox cmd a chance to
* complete or TMO.
*/
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0459 Adapter heartbeat still outstanding: "
"last compl time was %d ms.\n",
jiffies_to_msecs(jiffies
- phba->last_completion_time));
tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
} else {
if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
(list_empty(&psli->mboxq))) {
retval = lpfc_issue_hb_mbox(phba);
if (retval) {
tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
goto out;
}
phba->skipped_hb = 0;
} else if (time_before_eq(phba->last_completion_time,
phba->skipped_hb)) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2857 Last completion time not "
" updated in %d ms\n",
jiffies_to_msecs(jiffies
- phba->last_completion_time));
} else
phba->skipped_hb = jiffies;
tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
goto out;
}
} else {
/* Check to see if we want to force a MBX_HEARTBEAT */
if (phba->hba_flag & HBA_HBEAT_TMO) {
retval = lpfc_issue_hb_mbox(phba);
if (retval)
tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
else
tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
goto out;
}
tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
}
out:
mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
}
/**
* lpfc_offline_eratt - Bring lpfc offline on hardware error attention
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to bring the HBA offline when HBA hardware error
* other than Port Error 6 has been detected.
**/
static void
lpfc_offline_eratt(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
lpfc_offline(phba);
lpfc_reset_barrier(phba);
spin_lock_irq(&phba->hbalock);
lpfc_sli_brdreset(phba);
spin_unlock_irq(&phba->hbalock);
lpfc_hba_down_post(phba);
lpfc_sli_brdready(phba, HS_MBRDY);
lpfc_unblock_mgmt_io(phba);
phba->link_state = LPFC_HBA_ERROR;
return;
}
/**
* lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to bring a SLI4 HBA offline when HBA hardware error
* other than Port Error 6 has been detected.
**/
void
lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
{
spin_lock_irq(&phba->hbalock);
if (phba->link_state == LPFC_HBA_ERROR &&
test_bit(HBA_PCI_ERR, &phba->bit_flags)) {
spin_unlock_irq(&phba->hbalock);
return;
}
phba->link_state = LPFC_HBA_ERROR;
spin_unlock_irq(&phba->hbalock);
lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
lpfc_sli_flush_io_rings(phba);
lpfc_offline(phba);
lpfc_hba_down_post(phba);
lpfc_unblock_mgmt_io(phba);
}
/**
* lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to handle the deferred HBA hardware error
* conditions. This type of error is indicated by HBA by setting ER1
* and another ER bit in the host status register. The driver will
* wait until the ER1 bit clears before handling the error condition.
**/
static void
lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
{
uint32_t old_host_status = phba->work_hs;
struct lpfc_sli *psli = &phba->sli;
/* If the pci channel is offline, ignore possible errors,
* since we cannot communicate with the pci card anyway.
*/
if (pci_channel_offline(phba->pcidev)) {
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~DEFER_ERATT;
spin_unlock_irq(&phba->hbalock);
return;
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0479 Deferred Adapter Hardware Error "
"Data: x%x x%x x%x\n",
phba->work_hs, phba->work_status[0],
phba->work_status[1]);
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
/*
* Firmware stops when it triggred erratt. That could cause the I/Os
* dropped by the firmware. Error iocb (I/O) on txcmplq and let the
* SCSI layer retry it after re-establishing link.
*/
lpfc_sli_abort_fcp_rings(phba);
/*
* There was a firmware error. Take the hba offline and then
* attempt to restart it.
*/
lpfc_offline_prep(phba, LPFC_MBX_WAIT);
lpfc_offline(phba);
/* Wait for the ER1 bit to clear.*/
while (phba->work_hs & HS_FFER1) {
msleep(100);
if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
phba->work_hs = UNPLUG_ERR ;
break;
}
/* If driver is unloading let the worker thread continue */
if (phba->pport->load_flag & FC_UNLOADING) {
phba->work_hs = 0;
break;
}
}
/*
* This is to ptrotect against a race condition in which
* first write to the host attention register clear the
* host status register.
*/
if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
phba->work_hs = old_host_status & ~HS_FFER1;
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~DEFER_ERATT;
spin_unlock_irq(&phba->hbalock);
phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
}
static void
lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
{
struct lpfc_board_event_header board_event;
struct Scsi_Host *shost;
board_event.event_type = FC_REG_BOARD_EVENT;
board_event.subcategory = LPFC_EVENT_PORTINTERR;
shost = lpfc_shost_from_vport(phba->pport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(board_event),
(char *) &board_event,
LPFC_NL_VENDOR_ID);
}
/**
* lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to handle the following HBA hardware error
* conditions:
* 1 - HBA error attention interrupt
* 2 - DMA ring index out of range
* 3 - Mailbox command came back as unknown
**/
static void
lpfc_handle_eratt_s3(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
struct lpfc_sli *psli = &phba->sli;
uint32_t event_data;
unsigned long temperature;
struct temp_event temp_event_data;
struct Scsi_Host *shost;
/* If the pci channel is offline, ignore possible errors,
* since we cannot communicate with the pci card anyway.
*/
if (pci_channel_offline(phba->pcidev)) {
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~DEFER_ERATT;
spin_unlock_irq(&phba->hbalock);
return;
}
/* If resets are disabled then leave the HBA alone and return */
if (!phba->cfg_enable_hba_reset)
return;
/* Send an internal error event to mgmt application */
lpfc_board_errevt_to_mgmt(phba);
if (phba->hba_flag & DEFER_ERATT)
lpfc_handle_deferred_eratt(phba);
if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
if (phba->work_hs & HS_FFER6)
/* Re-establishing Link */
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
"1301 Re-establishing Link "
"Data: x%x x%x x%x\n",
phba->work_hs, phba->work_status[0],
phba->work_status[1]);
if (phba->work_hs & HS_FFER8)
/* Device Zeroization */
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
"2861 Host Authentication device "
"zeroization Data:x%x x%x x%x\n",
phba->work_hs, phba->work_status[0],
phba->work_status[1]);
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
/*
* Firmware stops when it triggled erratt with HS_FFER6.
* That could cause the I/Os dropped by the firmware.
* Error iocb (I/O) on txcmplq and let the SCSI layer
* retry it after re-establishing link.
*/
lpfc_sli_abort_fcp_rings(phba);
/*
* There was a firmware error. Take the hba offline and then
* attempt to restart it.
*/
lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
if (lpfc_online(phba) == 0) { /* Initialize the HBA */
lpfc_unblock_mgmt_io(phba);
return;
}
lpfc_unblock_mgmt_io(phba);
} else if (phba->work_hs & HS_CRIT_TEMP) {
temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
temp_event_data.event_code = LPFC_CRIT_TEMP;
temp_event_data.data = (uint32_t)temperature;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0406 Adapter maximum temperature exceeded "
"(%ld), taking this port offline "
"Data: x%x x%x x%x\n",
temperature, phba->work_hs,
phba->work_status[0], phba->work_status[1]);
shost = lpfc_shost_from_vport(phba->pport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(temp_event_data),
(char *) &temp_event_data,
SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX);
spin_lock_irq(&phba->hbalock);
phba->over_temp_state = HBA_OVER_TEMP;
spin_unlock_irq(&phba->hbalock);
lpfc_offline_eratt(phba);
} else {
/* The if clause above forces this code path when the status
* failure is a value other than FFER6. Do not call the offline
* twice. This is the adapter hardware error path.
*/
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0457 Adapter Hardware Error "
"Data: x%x x%x x%x\n",
phba->work_hs,
phba->work_status[0], phba->work_status[1]);
event_data = FC_REG_DUMP_EVENT;
shost = lpfc_shost_from_vport(vport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(event_data), (char *) &event_data,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
lpfc_offline_eratt(phba);
}
return;
}
/**
* lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
* @phba: pointer to lpfc hba data structure.
* @mbx_action: flag for mailbox shutdown action.
* @en_rn_msg: send reset/port recovery message.
* This routine is invoked to perform an SLI4 port PCI function reset in
* response to port status register polling attention. It waits for port
* status register (ERR, RDY, RN) bits before proceeding with function reset.
* During this process, interrupt vectors are freed and later requested
* for handling possible port resource change.
**/
static int
lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
bool en_rn_msg)
{
int rc;
uint32_t intr_mode;
LPFC_MBOXQ_t *mboxq;
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
LPFC_SLI_INTF_IF_TYPE_2) {
/*
* On error status condition, driver need to wait for port
* ready before performing reset.
*/
rc = lpfc_sli4_pdev_status_reg_wait(phba);
if (rc)
return rc;
}
/* need reset: attempt for port recovery */
if (en_rn_msg)
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"2887 Reset Needed: Attempting Port "
"Recovery...\n");
/* If we are no wait, the HBA has been reset and is not
* functional, thus we should clear
* (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
*/
if (mbx_action == LPFC_MBX_NO_WAIT) {
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
if (phba->sli.mbox_active) {
mboxq = phba->sli.mbox_active;
mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
__lpfc_mbox_cmpl_put(phba, mboxq);
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
phba->sli.mbox_active = NULL;
}
spin_unlock_irq(&phba->hbalock);
}
lpfc_offline_prep(phba, mbx_action);
lpfc_sli_flush_io_rings(phba);
lpfc_offline(phba);
/* release interrupt for possible resource change */
lpfc_sli4_disable_intr(phba);
rc = lpfc_sli_brdrestart(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6309 Failed to restart board\n");
return rc;
}
/* request and enable interrupt */
intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3175 Failed to enable interrupt\n");
return -EIO;
}
phba->intr_mode = intr_mode;
rc = lpfc_online(phba);
if (rc == 0)
lpfc_unblock_mgmt_io(phba);
return rc;
}
/**
* lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to handle the SLI4 HBA hardware error attention
* conditions.
**/
static void
lpfc_handle_eratt_s4(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
uint32_t event_data;
struct Scsi_Host *shost;
uint32_t if_type;
struct lpfc_register portstat_reg = {0};
uint32_t reg_err1, reg_err2;
uint32_t uerrlo_reg, uemasklo_reg;
uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
bool en_rn_msg = true;
struct temp_event temp_event_data;
struct lpfc_register portsmphr_reg;
int rc, i;
/* If the pci channel is offline, ignore possible errors, since
* we cannot communicate with the pci card anyway.
*/
if (pci_channel_offline(phba->pcidev)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3166 pci channel is offline\n");
lpfc_sli_flush_io_rings(phba);
return;
}
memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
pci_rd_rc1 = lpfc_readl(
phba->sli4_hba.u.if_type0.UERRLOregaddr,
&uerrlo_reg);
pci_rd_rc2 = lpfc_readl(
phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
&uemasklo_reg);
/* consider PCI bus read error as pci_channel_offline */
if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
return;
if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
lpfc_sli4_offline_eratt(phba);
return;
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"7623 Checking UE recoverable");
for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
&portsmphr_reg.word0))
continue;
smphr_port_status = bf_get(lpfc_port_smphr_port_status,
&portsmphr_reg);
if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
LPFC_PORT_SEM_UE_RECOVERABLE)
break;
/*Sleep for 1Sec, before checking SEMAPHORE */
msleep(1000);
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"4827 smphr_port_status x%x : Waited %dSec",
smphr_port_status, i);
/* Recoverable UE, reset the HBA device */
if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
LPFC_PORT_SEM_UE_RECOVERABLE) {
for (i = 0; i < 20; i++) {
msleep(1000);
if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
&portsmphr_reg.word0) &&
(LPFC_POST_STAGE_PORT_READY ==
bf_get(lpfc_port_smphr_port_status,
&portsmphr_reg))) {
rc = lpfc_sli4_port_sta_fn_reset(phba,
LPFC_MBX_NO_WAIT, en_rn_msg);
if (rc == 0)
return;
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"4215 Failed to recover UE");
break;
}
}
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"7624 Firmware not ready: Failing UE recovery,"
" waited %dSec", i);
phba->link_state = LPFC_HBA_ERROR;
break;
case LPFC_SLI_INTF_IF_TYPE_2:
case LPFC_SLI_INTF_IF_TYPE_6:
pci_rd_rc1 = lpfc_readl(
phba->sli4_hba.u.if_type2.STATUSregaddr,
&portstat_reg.word0);
/* consider PCI bus read error as pci_channel_offline */
if (pci_rd_rc1 == -EIO) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3151 PCI bus read access failure: x%x\n",
readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
lpfc_sli4_offline_eratt(phba);
return;
}
reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2889 Port Overtemperature event, "
"taking port offline Data: x%x x%x\n",
reg_err1, reg_err2);
phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
temp_event_data.event_code = LPFC_CRIT_TEMP;
temp_event_data.data = 0xFFFFFFFF;
shost = lpfc_shost_from_vport(phba->pport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(temp_event_data),
(char *)&temp_event_data,
SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX);
spin_lock_irq(&phba->hbalock);
phba->over_temp_state = HBA_OVER_TEMP;
spin_unlock_irq(&phba->hbalock);
lpfc_sli4_offline_eratt(phba);
return;
}
if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"3143 Port Down: Firmware Update "
"Detected\n");
en_rn_msg = false;
} else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"3144 Port Down: Debug Dump\n");
else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3145 Port Down: Provisioning\n");
/* If resets are disabled then leave the HBA alone and return */
if (!phba->cfg_enable_hba_reset)
return;
/* Check port status register for function reset */
rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
en_rn_msg);
if (rc == 0) {
/* don't report event on forced debug dump */
if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
return;
else
break;
}
/* fall through for not able to recover */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3152 Unrecoverable error\n");
lpfc_sli4_offline_eratt(phba);
break;
case LPFC_SLI_INTF_IF_TYPE_1:
default:
break;
}
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"3123 Report dump event to upper layer\n");
/* Send an internal error event to mgmt application */
lpfc_board_errevt_to_mgmt(phba);
event_data = FC_REG_DUMP_EVENT;
shost = lpfc_shost_from_vport(vport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(event_data), (char *) &event_data,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
}
/**
* lpfc_handle_eratt - Wrapper func for handling hba error attention
* @phba: pointer to lpfc HBA data structure.
*
* This routine wraps the actual SLI3 or SLI4 hba error attention handling
* routine from the API jump table function pointer from the lpfc_hba struct.
*
* Return codes
* 0 - success.
* Any other value - error.
**/
void
lpfc_handle_eratt(struct lpfc_hba *phba)
{
(*phba->lpfc_handle_eratt)(phba);
}
/**
* lpfc_handle_latt - The HBA link event handler
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked from the worker thread to handle a HBA host
* attention link event. SLI3 only.
**/
void
lpfc_handle_latt(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
struct lpfc_sli *psli = &phba->sli;
LPFC_MBOXQ_t *pmb;
volatile uint32_t control;
int rc = 0;
pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
rc = 1;
goto lpfc_handle_latt_err_exit;
}
rc = lpfc_mbox_rsrc_prep(phba, pmb);
if (rc) {
rc = 2;
mempool_free(pmb, phba->mbox_mem_pool);
goto lpfc_handle_latt_err_exit;
}
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_all_cmd(phba);
psli->slistat.link_event++;
lpfc_read_topology(phba, pmb, (struct lpfc_dmabuf *)pmb->ctx_buf);
pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
pmb->vport = vport;
/* Block ELS IOCBs until we have processed this mbox command */
phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
rc = 4;
goto lpfc_handle_latt_free_mbuf;
}
/* Clear Link Attention in HA REG */
spin_lock_irq(&phba->hbalock);
writel(HA_LATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
spin_unlock_irq(&phba->hbalock);
return;
lpfc_handle_latt_free_mbuf:
phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
lpfc_handle_latt_err_exit:
/* Enable Link attention interrupts */
spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_PROCESS_LA;
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* Clear Link Attention in HA REG */
writel(HA_LATT, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
spin_unlock_irq(&phba->hbalock);
lpfc_linkdown(phba);
phba->link_state = LPFC_HBA_ERROR;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
return;
}
static void
lpfc_fill_vpd(struct lpfc_hba *phba, uint8_t *vpd, int length, int *pindex)
{
int i, j;
while (length > 0) {
/* Look for Serial Number */
if ((vpd[*pindex] == 'S') && (vpd[*pindex + 1] == 'N')) {
*pindex += 2;
i = vpd[*pindex];
*pindex += 1;
j = 0;
length -= (3+i);
while (i--) {
phba->SerialNumber[j++] = vpd[(*pindex)++];
if (j == 31)
break;
}
phba->SerialNumber[j] = 0;
continue;
} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '1')) {
phba->vpd_flag |= VPD_MODEL_DESC;
*pindex += 2;
i = vpd[*pindex];
*pindex += 1;
j = 0;
length -= (3+i);
while (i--) {
phba->ModelDesc[j++] = vpd[(*pindex)++];
if (j == 255)
break;
}
phba->ModelDesc[j] = 0;
continue;
} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '2')) {
phba->vpd_flag |= VPD_MODEL_NAME;
*pindex += 2;
i = vpd[*pindex];
*pindex += 1;
j = 0;
length -= (3+i);
while (i--) {
phba->ModelName[j++] = vpd[(*pindex)++];
if (j == 79)
break;
}
phba->ModelName[j] = 0;
continue;
} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '3')) {
phba->vpd_flag |= VPD_PROGRAM_TYPE;
*pindex += 2;
i = vpd[*pindex];
*pindex += 1;
j = 0;
length -= (3+i);
while (i--) {
phba->ProgramType[j++] = vpd[(*pindex)++];
if (j == 255)
break;
}
phba->ProgramType[j] = 0;
continue;
} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '4')) {
phba->vpd_flag |= VPD_PORT;
*pindex += 2;
i = vpd[*pindex];
*pindex += 1;
j = 0;
length -= (3 + i);
while (i--) {
if ((phba->sli_rev == LPFC_SLI_REV4) &&
(phba->sli4_hba.pport_name_sta ==
LPFC_SLI4_PPNAME_GET)) {
j++;
(*pindex)++;
} else
phba->Port[j++] = vpd[(*pindex)++];
if (j == 19)
break;
}
if ((phba->sli_rev != LPFC_SLI_REV4) ||
(phba->sli4_hba.pport_name_sta ==
LPFC_SLI4_PPNAME_NON))
phba->Port[j] = 0;
continue;
} else {
*pindex += 2;
i = vpd[*pindex];
*pindex += 1;
*pindex += i;
length -= (3 + i);
}
}
}
/**
* lpfc_parse_vpd - Parse VPD (Vital Product Data)
* @phba: pointer to lpfc hba data structure.
* @vpd: pointer to the vital product data.
* @len: length of the vital product data in bytes.
*
* This routine parses the Vital Product Data (VPD). The VPD is treated as
* an array of characters. In this routine, the ModelName, ProgramType, and
* ModelDesc, etc. fields of the phba data structure will be populated.
*
* Return codes
* 0 - pointer to the VPD passed in is NULL
* 1 - success
**/
int
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
{
uint8_t lenlo, lenhi;
int Length;
int i;
int finished = 0;
int index = 0;
if (!vpd)
return 0;
/* Vital Product */
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0455 Vital Product Data: x%x x%x x%x x%x\n",
(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
(uint32_t) vpd[3]);
while (!finished && (index < (len - 4))) {
switch (vpd[index]) {
case 0x82:
case 0x91:
index += 1;
lenlo = vpd[index];
index += 1;
lenhi = vpd[index];
index += 1;
i = ((((unsigned short)lenhi) << 8) + lenlo);
index += i;
break;
case 0x90:
index += 1;
lenlo = vpd[index];
index += 1;
lenhi = vpd[index];
index += 1;
Length = ((((unsigned short)lenhi) << 8) + lenlo);
if (Length > len - index)
Length = len - index;
lpfc_fill_vpd(phba, vpd, Length, &index);
finished = 0;
break;
case 0x78:
finished = 1;
break;
default:
index ++;
break;
}
}
return(1);
}
/**
* lpfc_get_atto_model_desc - Retrieve ATTO HBA device model name and description
* @phba: pointer to lpfc hba data structure.
* @mdp: pointer to the data structure to hold the derived model name.
* @descp: pointer to the data structure to hold the derived description.
*
* This routine retrieves HBA's description based on its registered PCI device
* ID. The @descp passed into this function points to an array of 256 chars. It
* shall be returned with the model name, maximum speed, and the host bus type.
* The @mdp passed into this function points to an array of 80 chars. When the
* function returns, the @mdp will be filled with the model name.
**/
static void
lpfc_get_atto_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
{
uint16_t sub_dev_id = phba->pcidev->subsystem_device;
char *model = "<Unknown>";
int tbolt = 0;
switch (sub_dev_id) {
case PCI_DEVICE_ID_CLRY_161E:
model = "161E";
break;
case PCI_DEVICE_ID_CLRY_162E:
model = "162E";
break;
case PCI_DEVICE_ID_CLRY_164E:
model = "164E";
break;
case PCI_DEVICE_ID_CLRY_161P:
model = "161P";
break;
case PCI_DEVICE_ID_CLRY_162P:
model = "162P";
break;
case PCI_DEVICE_ID_CLRY_164P:
model = "164P";
break;
case PCI_DEVICE_ID_CLRY_321E:
model = "321E";
break;
case PCI_DEVICE_ID_CLRY_322E:
model = "322E";
break;
case PCI_DEVICE_ID_CLRY_324E:
model = "324E";
break;
case PCI_DEVICE_ID_CLRY_321P:
model = "321P";
break;
case PCI_DEVICE_ID_CLRY_322P:
model = "322P";
break;
case PCI_DEVICE_ID_CLRY_324P:
model = "324P";
break;
case PCI_DEVICE_ID_TLFC_2XX2:
model = "2XX2";
tbolt = 1;
break;
case PCI_DEVICE_ID_TLFC_3162:
model = "3162";
tbolt = 1;
break;
case PCI_DEVICE_ID_TLFC_3322:
model = "3322";
tbolt = 1;
break;
default:
model = "Unknown";
break;
}
if (mdp && mdp[0] == '\0')
snprintf(mdp, 79, "%s", model);
if (descp && descp[0] == '\0')
snprintf(descp, 255,
"ATTO %s%s, Fibre Channel Adapter Initiator, Port %s",
(tbolt) ? "ThunderLink FC " : "Celerity FC-",
model,
phba->Port);
}
/**
* lpfc_get_hba_model_desc - Retrieve HBA device model name and description
* @phba: pointer to lpfc hba data structure.
* @mdp: pointer to the data structure to hold the derived model name.
* @descp: pointer to the data structure to hold the derived description.
*
* This routine retrieves HBA's description based on its registered PCI device
* ID. The @descp passed into this function points to an array of 256 chars. It
* shall be returned with the model name, maximum speed, and the host bus type.
* The @mdp passed into this function points to an array of 80 chars. When the
* function returns, the @mdp will be filled with the model name.
**/
static void
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
{
lpfc_vpd_t *vp;
uint16_t dev_id = phba->pcidev->device;
int max_speed;
int GE = 0;
int oneConnect = 0; /* default is not a oneConnect */
struct {
char *name;
char *bus;
char *function;
} m = {"<Unknown>", "", ""};
if (mdp && mdp[0] != '\0'
&& descp && descp[0] != '\0')
return;
if (phba->pcidev->vendor == PCI_VENDOR_ID_ATTO) {
lpfc_get_atto_model_desc(phba, mdp, descp);
return;
}
if (phba->lmt & LMT_64Gb)
max_speed = 64;
else if (phba->lmt & LMT_32Gb)
max_speed = 32;
else if (phba->lmt & LMT_16Gb)
max_speed = 16;
else if (phba->lmt & LMT_10Gb)
max_speed = 10;
else if (phba->lmt & LMT_8Gb)
max_speed = 8;
else if (phba->lmt & LMT_4Gb)
max_speed = 4;
else if (phba->lmt & LMT_2Gb)
max_speed = 2;
else if (phba->lmt & LMT_1Gb)
max_speed = 1;
else
max_speed = 0;
vp = &phba->vpd;
switch (dev_id) {
case PCI_DEVICE_ID_FIREFLY:
m = (typeof(m)){"LP6000", "PCI",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_SUPERFLY:
if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
m = (typeof(m)){"LP7000", "PCI", ""};
else
m = (typeof(m)){"LP7000E", "PCI", ""};
m.function = "Obsolete, Unsupported Fibre Channel Adapter";
break;
case PCI_DEVICE_ID_DRAGONFLY:
m = (typeof(m)){"LP8000", "PCI",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_CENTAUR:
if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
m = (typeof(m)){"LP9002", "PCI", ""};
else
m = (typeof(m)){"LP9000", "PCI", ""};
m.function = "Obsolete, Unsupported Fibre Channel Adapter";
break;
case PCI_DEVICE_ID_RFLY:
m = (typeof(m)){"LP952", "PCI",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_PEGASUS:
m = (typeof(m)){"LP9802", "PCI-X",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_THOR:
m = (typeof(m)){"LP10000", "PCI-X",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_VIPER:
m = (typeof(m)){"LPX1000", "PCI-X",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_PFLY:
m = (typeof(m)){"LP982", "PCI-X",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_TFLY:
m = (typeof(m)){"LP1050", "PCI-X",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_HELIOS:
m = (typeof(m)){"LP11000", "PCI-X2",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_HELIOS_SCSP:
m = (typeof(m)){"LP11000-SP", "PCI-X2",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_HELIOS_DCSP:
m = (typeof(m)){"LP11002-SP", "PCI-X2",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_NEPTUNE:
m = (typeof(m)){"LPe1000", "PCIe",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_NEPTUNE_SCSP:
m = (typeof(m)){"LPe1000-SP", "PCIe",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_NEPTUNE_DCSP:
m = (typeof(m)){"LPe1002-SP", "PCIe",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_BMID:
m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_BSMB:
m = (typeof(m)){"LP111", "PCI-X2",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_ZEPHYR:
m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_ZEPHYR_SCSP:
m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_ZEPHYR_DCSP:
m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
GE = 1;
break;
case PCI_DEVICE_ID_ZMID:
m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_ZSMB:
m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LP101:
m = (typeof(m)){"LP101", "PCI-X",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LP10000S:
m = (typeof(m)){"LP10000-S", "PCI",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LP11000S:
m = (typeof(m)){"LP11000-S", "PCI-X2",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LPE11000S:
m = (typeof(m)){"LPe11000-S", "PCIe",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_SAT:
m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_SAT_MID:
m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_SAT_SMB:
m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_SAT_DCSP:
m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_SAT_SCSP:
m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_SAT_S:
m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_PROTEUS_VF:
m = (typeof(m)){"LPev12000", "PCIe IOV",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_PROTEUS_PF:
m = (typeof(m)){"LPev12000", "PCIe IOV",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_PROTEUS_S:
m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_TIGERSHARK:
oneConnect = 1;
m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
break;
case PCI_DEVICE_ID_TOMCAT:
oneConnect = 1;
m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
break;
case PCI_DEVICE_ID_FALCON:
m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
"EmulexSecure Fibre"};
break;
case PCI_DEVICE_ID_BALIUS:
m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LANCER_FC:
m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LANCER_FC_VF:
m = (typeof(m)){"LPe16000", "PCIe",
"Obsolete, Unsupported Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LANCER_FCOE:
oneConnect = 1;
m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
break;
case PCI_DEVICE_ID_LANCER_FCOE_VF:
oneConnect = 1;
m = (typeof(m)){"OCe15100", "PCIe",
"Obsolete, Unsupported FCoE"};
break;
case PCI_DEVICE_ID_LANCER_G6_FC:
m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LANCER_G7_FC:
m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_LANCER_G7P_FC:
m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
break;
case PCI_DEVICE_ID_SKYHAWK:
case PCI_DEVICE_ID_SKYHAWK_VF:
oneConnect = 1;
m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
break;
default:
m = (typeof(m)){"Unknown", "", ""};
break;
}
if (mdp && mdp[0] == '\0')
snprintf(mdp, 79,"%s", m.name);
/*
* oneConnect hba requires special processing, they are all initiators
* and we put the port number on the end
*/
if (descp && descp[0] == '\0') {
if (oneConnect)
snprintf(descp, 255,
"Emulex OneConnect %s, %s Initiator %s",
m.name, m.function,
phba->Port);
else if (max_speed == 0)
snprintf(descp, 255,
"Emulex %s %s %s",
m.name, m.bus, m.function);
else
snprintf(descp, 255,
"Emulex %s %d%s %s %s",
m.name, max_speed, (GE) ? "GE" : "Gb",
m.bus, m.function);
}
}
/**
* lpfc_sli3_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
* @phba: pointer to lpfc hba data structure.
* @pring: pointer to a IOCB ring.
* @cnt: the number of IOCBs to be posted to the IOCB ring.
*
* This routine posts a given number of IOCBs with the associated DMA buffer
* descriptors specified by the cnt argument to the given IOCB ring.
*
* Return codes
* The number of IOCBs NOT able to be posted to the IOCB ring.
**/
int
lpfc_sli3_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
{
IOCB_t *icmd;
struct lpfc_iocbq *iocb;
struct lpfc_dmabuf *mp1, *mp2;
cnt += pring->missbufcnt;
/* While there are buffers to post */
while (cnt > 0) {
/* Allocate buffer for command iocb */
iocb = lpfc_sli_get_iocbq(phba);
if (iocb == NULL) {
pring->missbufcnt = cnt;
return cnt;
}
icmd = &iocb->iocb;
/* 2 buffers can be posted per command */
/* Allocate buffer to post */
mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
if (mp1)
mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
if (!mp1 || !mp1->virt) {
kfree(mp1);
lpfc_sli_release_iocbq(phba, iocb);
pring->missbufcnt = cnt;
return cnt;
}
INIT_LIST_HEAD(&mp1->list);
/* Allocate buffer to post */
if (cnt > 1) {
mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
if (mp2)
mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
&mp2->phys);
if (!mp2 || !mp2->virt) {
kfree(mp2);
lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
kfree(mp1);
lpfc_sli_release_iocbq(phba, iocb);
pring->missbufcnt = cnt;
return cnt;
}
INIT_LIST_HEAD(&mp2->list);
} else {
mp2 = NULL;
}
icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
icmd->ulpBdeCount = 1;
cnt--;
if (mp2) {
icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
cnt--;
icmd->ulpBdeCount = 2;
}
icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
icmd->ulpLe = 1;
if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
IOCB_ERROR) {
lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
kfree(mp1);
cnt++;
if (mp2) {
lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
kfree(mp2);
cnt++;
}
lpfc_sli_release_iocbq(phba, iocb);
pring->missbufcnt = cnt;
return cnt;
}
lpfc_sli_ringpostbuf_put(phba, pring, mp1);
if (mp2)
lpfc_sli_ringpostbuf_put(phba, pring, mp2);
}
pring->missbufcnt = 0;
return 0;
}
/**
* lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
* @phba: pointer to lpfc hba data structure.
*
* This routine posts initial receive IOCB buffers to the ELS ring. The
* current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
* set to 64 IOCBs. SLI3 only.
*
* Return codes
* 0 - success (currently always success)
**/
static int
lpfc_post_rcv_buf(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
/* Ring 0, ELS / CT buffers */
lpfc_sli3_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
/* Ring 2 - FCP no buffers needed */
return 0;
}
#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
/**
* lpfc_sha_init - Set up initial array of hash table entries
* @HashResultPointer: pointer to an array as hash table.
*
* This routine sets up the initial values to the array of hash table entries
* for the LC HBAs.
**/
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
HashResultPointer[0] = 0x67452301;
HashResultPointer[1] = 0xEFCDAB89;
HashResultPointer[2] = 0x98BADCFE;
HashResultPointer[3] = 0x10325476;
HashResultPointer[4] = 0xC3D2E1F0;
}
/**
* lpfc_sha_iterate - Iterate initial hash table with the working hash table
* @HashResultPointer: pointer to an initial/result hash table.
* @HashWorkingPointer: pointer to an working hash table.
*
* This routine iterates an initial hash table pointed by @HashResultPointer
* with the values from the working hash table pointeed by @HashWorkingPointer.
* The results are putting back to the initial hash table, returned through
* the @HashResultPointer as the result hash table.
**/
static void
lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
{
int t;
uint32_t TEMP;
uint32_t A, B, C, D, E;
t = 16;
do {
HashWorkingPointer[t] =
S(1,
HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
8] ^
HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
} while (++t <= 79);
t = 0;
A = HashResultPointer[0];
B = HashResultPointer[1];
C = HashResultPointer[2];
D = HashResultPointer[3];
E = HashResultPointer[4];
do {
if (t < 20) {
TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
} else if (t < 40) {
TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
} else if (t < 60) {
TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
} else {
TEMP = (B ^ C ^ D) + 0xCA62C1D6;
}
TEMP += S(5, A) + E + HashWorkingPointer[t];
E = D;
D = C;
C = S(30, B);
B = A;
A = TEMP;
} while (++t <= 79);
HashResultPointer[0] += A;
HashResultPointer[1] += B;
HashResultPointer[2] += C;
HashResultPointer[3] += D;
HashResultPointer[4] += E;
}
/**
* lpfc_challenge_key - Create challenge key based on WWPN of the HBA
* @RandomChallenge: pointer to the entry of host challenge random number array.
* @HashWorking: pointer to the entry of the working hash array.
*
* This routine calculates the working hash array referred by @HashWorking
* from the challenge random numbers associated with the host, referred by
* @RandomChallenge. The result is put into the entry of the working hash
* array and returned by reference through @HashWorking.
**/
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
*HashWorking = (*RandomChallenge ^ *HashWorking);
}
/**
* lpfc_hba_init - Perform special handling for LC HBA initialization
* @phba: pointer to lpfc hba data structure.
* @hbainit: pointer to an array of unsigned 32-bit integers.
*
* This routine performs the special handling for LC HBA initialization.
**/
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
int t;
uint32_t *HashWorking;
uint32_t *pwwnn = (uint32_t *) phba->wwnn;
HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
if (!HashWorking)
return;
HashWorking[0] = HashWorking[78] = *pwwnn++;
HashWorking[1] = HashWorking[79] = *pwwnn;
for (t = 0; t < 7; t++)
lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
lpfc_sha_init(hbainit);
lpfc_sha_iterate(hbainit, HashWorking);
kfree(HashWorking);
}
/**
* lpfc_cleanup - Performs vport cleanups before deleting a vport
* @vport: pointer to a virtual N_Port data structure.
*
* This routine performs the necessary cleanups before deleting the @vport.
* It invokes the discovery state machine to perform necessary state
* transitions and to release the ndlps associated with the @vport. Note,
* the physical port is treated as @vport 0.
**/
void
lpfc_cleanup(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp, *next_ndlp;
int i = 0;
if (phba->link_state > LPFC_LINK_DOWN)
lpfc_port_link_failure(vport);
/* Clean up VMID resources */
if (lpfc_is_vmid_enabled(phba))
lpfc_vmid_vport_cleanup(vport);
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (vport->port_type != LPFC_PHYSICAL_PORT &&
ndlp->nlp_DID == Fabric_DID) {
/* Just free up ndlp with Fabric_DID for vports */
lpfc_nlp_put(ndlp);
continue;
}
if (ndlp->nlp_DID == Fabric_Cntl_DID &&
ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
lpfc_nlp_put(ndlp);
continue;
}
/* Fabric Ports not in UNMAPPED state are cleaned up in the
* DEVICE_RM event.
*/
if (ndlp->nlp_type & NLP_FABRIC &&
ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RECOVERY);
if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
}
/* This is a special case flush to return all
* IOs before entering this loop. There are
* two points in the code where a flush is
* avoided if the FC_UNLOADING flag is set.
* one is in the multipool destroy,
* (this prevents a crash) and the other is
* in the nvme abort handler, ( also prevents
* a crash). Both of these exceptions are
* cases where the slot is still accessible.
* The flush here is only when the pci slot
* is offline.
*/
if (vport->load_flag & FC_UNLOADING &&
pci_channel_offline(phba->pcidev))
lpfc_sli_flush_io_rings(vport->phba);
/* At this point, ALL ndlp's should be gone
* because of the previous NLP_EVT_DEVICE_RM.
* Lets wait for this to happen, if needed.
*/
while (!list_empty(&vport->fc_nodes)) {
if (i++ > 3000) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0233 Nodelist not empty\n");
list_for_each_entry_safe(ndlp, next_ndlp,
&vport->fc_nodes, nlp_listp) {
lpfc_printf_vlog(ndlp->vport, KERN_ERR,
LOG_DISCOVERY,
"0282 did:x%x ndlp:x%px "
"refcnt:%d xflags x%x nflag x%x\n",
ndlp->nlp_DID, (void *)ndlp,
kref_read(&ndlp->kref),
ndlp->fc4_xpt_flags,
ndlp->nlp_flag);
}
break;
}
/* Wait for any activity on ndlps to settle */
msleep(10);
}
lpfc_cleanup_vports_rrqs(vport, NULL);
}
/**
* lpfc_stop_vport_timers - Stop all the timers associated with a vport
* @vport: pointer to a virtual N_Port data structure.
*
* This routine stops all the timers associated with a @vport. This function
* is invoked before disabling or deleting a @vport. Note that the physical
* port is treated as @vport 0.
**/
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
{
del_timer_sync(&vport->els_tmofunc);
del_timer_sync(&vport->delayed_disc_tmo);
lpfc_can_disctmo(vport);
return;
}
/**
* __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
* @phba: pointer to lpfc hba data structure.
*
* This routine stops the SLI4 FCF rediscover wait timer if it's on. The
* caller of this routine should already hold the host lock.
**/
void
__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
/* Clear pending FCF rediscovery wait flag */
phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
/* Now, try to stop the timer */
del_timer(&phba->fcf.redisc_wait);
}
/**
* lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
* @phba: pointer to lpfc hba data structure.
*
* This routine stops the SLI4 FCF rediscover wait timer if it's on. It
* checks whether the FCF rediscovery wait timer is pending with the host
* lock held before proceeding with disabling the timer and clearing the
* wait timer pendig flag.
**/
void
lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
spin_lock_irq(&phba->hbalock);
if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
/* FCF rediscovery timer already fired or stopped */
spin_unlock_irq(&phba->hbalock);
return;
}
__lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
/* Clear failover in progress flags */
phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_cmf_stop - Stop CMF processing
* @phba: pointer to lpfc hba data structure.
*
* This is called when the link goes down or if CMF mode is turned OFF.
* It is also called when going offline or unloaded just before the
* congestion info buffer is unregistered.
**/
void
lpfc_cmf_stop(struct lpfc_hba *phba)
{
int cpu;
struct lpfc_cgn_stat *cgs;
/* We only do something if CMF is enabled */
if (!phba->sli4_hba.pc_sli4_params.cmf)
return;
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6221 Stop CMF / Cancel Timer\n");
/* Cancel the CMF timer */
hrtimer_cancel(&phba->cmf_stats_timer);
hrtimer_cancel(&phba->cmf_timer);
/* Zero CMF counters */
atomic_set(&phba->cmf_busy, 0);
for_each_present_cpu(cpu) {
cgs = per_cpu_ptr(phba->cmf_stat, cpu);
atomic64_set(&cgs->total_bytes, 0);
atomic64_set(&cgs->rcv_bytes, 0);
atomic_set(&cgs->rx_io_cnt, 0);
atomic64_set(&cgs->rx_latency, 0);
}
atomic_set(&phba->cmf_bw_wait, 0);
/* Resume any blocked IO - Queue unblock on workqueue */
queue_work(phba->wq, &phba->unblock_request_work);
}
static inline uint64_t
lpfc_get_max_line_rate(struct lpfc_hba *phba)
{
uint64_t rate = lpfc_sli_port_speed_get(phba);
return ((((unsigned long)rate) * 1024 * 1024) / 10);
}
void
lpfc_cmf_signal_init(struct lpfc_hba *phba)
{
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6223 Signal CMF init\n");
/* Use the new fc_linkspeed to recalculate */
phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
phba->cmf_interval_rate, 1000);
phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
/* This is a signal to firmware to sync up CMF BW with link speed */
lpfc_issue_cmf_sync_wqe(phba, 0, 0);
}
/**
* lpfc_cmf_start - Start CMF processing
* @phba: pointer to lpfc hba data structure.
*
* This is called when the link comes up or if CMF mode is turned OFF
* to Monitor or Managed.
**/
void
lpfc_cmf_start(struct lpfc_hba *phba)
{
struct lpfc_cgn_stat *cgs;
int cpu;
/* We only do something if CMF is enabled */
if (!phba->sli4_hba.pc_sli4_params.cmf ||
phba->cmf_active_mode == LPFC_CFG_OFF)
return;
/* Reinitialize congestion buffer info */
lpfc_init_congestion_buf(phba);
atomic_set(&phba->cgn_fabric_warn_cnt, 0);
atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
atomic_set(&phba->cgn_sync_alarm_cnt, 0);
atomic_set(&phba->cgn_sync_warn_cnt, 0);
atomic_set(&phba->cmf_busy, 0);
for_each_present_cpu(cpu) {
cgs = per_cpu_ptr(phba->cmf_stat, cpu);
atomic64_set(&cgs->total_bytes, 0);
atomic64_set(&cgs->rcv_bytes, 0);
atomic_set(&cgs->rx_io_cnt, 0);
atomic64_set(&cgs->rx_latency, 0);
}
phba->cmf_latency.tv_sec = 0;
phba->cmf_latency.tv_nsec = 0;
lpfc_cmf_signal_init(phba);
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6222 Start CMF / Timer\n");
phba->cmf_timer_cnt = 0;
hrtimer_start(&phba->cmf_timer,
ktime_set(0, LPFC_CMF_INTERVAL * NSEC_PER_MSEC),
HRTIMER_MODE_REL);
hrtimer_start(&phba->cmf_stats_timer,
ktime_set(0, LPFC_SEC_MIN * NSEC_PER_SEC),
HRTIMER_MODE_REL);
/* Setup for latency check in IO cmpl routines */
ktime_get_real_ts64(&phba->cmf_latency);
atomic_set(&phba->cmf_bw_wait, 0);
atomic_set(&phba->cmf_stop_io, 0);
}
/**
* lpfc_stop_hba_timers - Stop all the timers associated with an HBA
* @phba: pointer to lpfc hba data structure.
*
* This routine stops all the timers associated with a HBA. This function is
* invoked before either putting a HBA offline or unloading the driver.
**/
void
lpfc_stop_hba_timers(struct lpfc_hba *phba)
{
if (phba->pport)
lpfc_stop_vport_timers(phba->pport);
cancel_delayed_work_sync(&phba->eq_delay_work);
cancel_delayed_work_sync(&phba->idle_stat_delay_work);
del_timer_sync(&phba->sli.mbox_tmo);
del_timer_sync(&phba->fabric_block_timer);
del_timer_sync(&phba->eratt_poll);
del_timer_sync(&phba->hb_tmofunc);
if (phba->sli_rev == LPFC_SLI_REV4) {
del_timer_sync(&phba->rrq_tmr);
phba->hba_flag &= ~HBA_RRQ_ACTIVE;
}
phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
switch (phba->pci_dev_grp) {
case LPFC_PCI_DEV_LP:
/* Stop any LightPulse device specific driver timers */
del_timer_sync(&phba->fcp_poll_timer);
break;
case LPFC_PCI_DEV_OC:
/* Stop any OneConnect device specific driver timers */
lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0297 Invalid device group (x%x)\n",
phba->pci_dev_grp);
break;
}
return;
}
/**
* lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
* @phba: pointer to lpfc hba data structure.
* @mbx_action: flag for mailbox no wait action.
*
* This routine marks a HBA's management interface as blocked. Once the HBA's
* management interface is marked as blocked, all the user space access to
* the HBA, whether they are from sysfs interface or libdfc interface will
* all be blocked. The HBA is set to block the management interface when the
* driver prepares the HBA interface for online or offline.
**/
static void
lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
{
unsigned long iflag;
uint8_t actcmd = MBX_HEARTBEAT;
unsigned long timeout;
spin_lock_irqsave(&phba->hbalock, iflag);
phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
spin_unlock_irqrestore(&phba->hbalock, iflag);
if (mbx_action == LPFC_MBX_NO_WAIT)
return;
timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
spin_lock_irqsave(&phba->hbalock, iflag);
if (phba->sli.mbox_active) {
actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
/* Determine how long we might wait for the active mailbox
* command to be gracefully completed by firmware.
*/
timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
phba->sli.mbox_active) * 1000) + jiffies;
}
spin_unlock_irqrestore(&phba->hbalock, iflag);
/* Wait for the outstnading mailbox command to complete */
while (phba->sli.mbox_active) {
/* Check active mailbox complete status every 2ms */
msleep(2);
if (time_after(jiffies, timeout)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2813 Mgmt IO is Blocked %x "
"- mbox cmd %x still active\n",
phba->sli.sli_flag, actcmd);
break;
}
}
}
/**
* lpfc_sli4_node_prep - Assign RPIs for active nodes.
* @phba: pointer to lpfc hba data structure.
*
* Allocate RPIs for all active remote nodes. This is needed whenever
* an SLI4 adapter is reset and the driver is not unloading. Its purpose
* is to fixup the temporary rpi assignments.
**/
void
lpfc_sli4_node_prep(struct lpfc_hba *phba)
{
struct lpfc_nodelist *ndlp, *next_ndlp;
struct lpfc_vport **vports;
int i, rpi;
if (phba->sli_rev != LPFC_SLI_REV4)
return;
vports = lpfc_create_vport_work_array(phba);
if (vports == NULL)
return;
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
if (vports[i]->load_flag & FC_UNLOADING)
continue;
list_for_each_entry_safe(ndlp, next_ndlp,
&vports[i]->fc_nodes,
nlp_listp) {
rpi = lpfc_sli4_alloc_rpi(phba);
if (rpi == LPFC_RPI_ALLOC_ERROR) {
/* TODO print log? */
continue;
}
ndlp->nlp_rpi = rpi;
lpfc_printf_vlog(ndlp->vport, KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"0009 Assign RPI x%x to ndlp x%px "
"DID:x%06x flg:x%x\n",
ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
ndlp->nlp_flag);
}
}
lpfc_destroy_vport_work_array(phba, vports);
}
/**
* lpfc_create_expedite_pool - create expedite pool
* @phba: pointer to lpfc hba data structure.
*
* This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
* to expedite pool. Mark them as expedite.
**/
static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
{
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_io_buf *lpfc_ncmd_next;
struct lpfc_epd_pool *epd_pool;
unsigned long iflag;
epd_pool = &phba->epd_pool;
qp = &phba->sli4_hba.hdwq[0];
spin_lock_init(&epd_pool->lock);
spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
spin_lock(&epd_pool->lock);
INIT_LIST_HEAD(&epd_pool->list);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&qp->lpfc_io_buf_list_put, list) {
list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
lpfc_ncmd->expedite = true;
qp->put_io_bufs--;
epd_pool->count++;
if (epd_pool->count >= XRI_BATCH)
break;
}
spin_unlock(&epd_pool->lock);
spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
}
/**
* lpfc_destroy_expedite_pool - destroy expedite pool
* @phba: pointer to lpfc hba data structure.
*
* This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
* of HWQ 0. Clear the mark.
**/
static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
{
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_io_buf *lpfc_ncmd_next;
struct lpfc_epd_pool *epd_pool;
unsigned long iflag;
epd_pool = &phba->epd_pool;
qp = &phba->sli4_hba.hdwq[0];
spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
spin_lock(&epd_pool->lock);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&epd_pool->list, list) {
list_move_tail(&lpfc_ncmd->list,
&qp->lpfc_io_buf_list_put);
lpfc_ncmd->flags = false;
qp->put_io_bufs++;
epd_pool->count--;
}
spin_unlock(&epd_pool->lock);
spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
}
/**
* lpfc_create_multixri_pools - create multi-XRI pools
* @phba: pointer to lpfc hba data structure.
*
* This routine initialize public, private per HWQ. Then, move XRIs from
* lpfc_io_buf_list_put to public pool. High and low watermark are also
* Initialized.
**/
void lpfc_create_multixri_pools(struct lpfc_hba *phba)
{
u32 i, j;
u32 hwq_count;
u32 count_per_hwq;
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_io_buf *lpfc_ncmd_next;
unsigned long iflag;
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_multixri_pool *multixri_pool;
struct lpfc_pbl_pool *pbl_pool;
struct lpfc_pvt_pool *pvt_pool;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
phba->sli4_hba.io_xri_cnt);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
lpfc_create_expedite_pool(phba);
hwq_count = phba->cfg_hdw_queue;
count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
for (i = 0; i < hwq_count; i++) {
multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
if (!multixri_pool) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1238 Failed to allocate memory for "
"multixri_pool\n");
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
lpfc_destroy_expedite_pool(phba);
j = 0;
while (j < i) {
qp = &phba->sli4_hba.hdwq[j];
kfree(qp->p_multixri_pool);
j++;
}
phba->cfg_xri_rebalancing = 0;
return;
}
qp = &phba->sli4_hba.hdwq[i];
qp->p_multixri_pool = multixri_pool;
multixri_pool->xri_limit = count_per_hwq;
multixri_pool->rrb_next_hwqid = i;
/* Deal with public free xri pool */
pbl_pool = &multixri_pool->pbl_pool;
spin_lock_init(&pbl_pool->lock);
spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
spin_lock(&pbl_pool->lock);
INIT_LIST_HEAD(&pbl_pool->list);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&qp->lpfc_io_buf_list_put, list) {
list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
qp->put_io_bufs--;
pbl_pool->count++;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
pbl_pool->count, i);
spin_unlock(&pbl_pool->lock);
spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
/* Deal with private free xri pool */
pvt_pool = &multixri_pool->pvt_pool;
pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
pvt_pool->low_watermark = XRI_BATCH;
spin_lock_init(&pvt_pool->lock);
spin_lock_irqsave(&pvt_pool->lock, iflag);
INIT_LIST_HEAD(&pvt_pool->list);
pvt_pool->count = 0;
spin_unlock_irqrestore(&pvt_pool->lock, iflag);
}
}
/**
* lpfc_destroy_multixri_pools - destroy multi-XRI pools
* @phba: pointer to lpfc hba data structure.
*
* This routine returns XRIs from public/private to lpfc_io_buf_list_put.
**/
static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
{
u32 i;
u32 hwq_count;
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_io_buf *lpfc_ncmd_next;
unsigned long iflag;
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_multixri_pool *multixri_pool;
struct lpfc_pbl_pool *pbl_pool;
struct lpfc_pvt_pool *pvt_pool;
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
lpfc_destroy_expedite_pool(phba);
if (!(phba->pport->load_flag & FC_UNLOADING))
lpfc_sli_flush_io_rings(phba);
hwq_count = phba->cfg_hdw_queue;
for (i = 0; i < hwq_count; i++) {
qp = &phba->sli4_hba.hdwq[i];
multixri_pool = qp->p_multixri_pool;
if (!multixri_pool)
continue;
qp->p_multixri_pool = NULL;
spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
/* Deal with public free xri pool */
pbl_pool = &multixri_pool->pbl_pool;
spin_lock(&pbl_pool->lock);
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
pbl_pool->count, i);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&pbl_pool->list, list) {
list_move_tail(&lpfc_ncmd->list,
&qp->lpfc_io_buf_list_put);
qp->put_io_bufs++;
pbl_pool->count--;
}
INIT_LIST_HEAD(&pbl_pool->list);
pbl_pool->count = 0;
spin_unlock(&pbl_pool->lock);
/* Deal with private free xri pool */
pvt_pool = &multixri_pool->pvt_pool;
spin_lock(&pvt_pool->lock);
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
pvt_pool->count, i);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&pvt_pool->list, list) {
list_move_tail(&lpfc_ncmd->list,
&qp->lpfc_io_buf_list_put);
qp->put_io_bufs++;
pvt_pool->count--;
}
INIT_LIST_HEAD(&pvt_pool->list);
pvt_pool->count = 0;
spin_unlock(&pvt_pool->lock);
spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
kfree(multixri_pool);
}
}
/**
* lpfc_online - Initialize and bring a HBA online
* @phba: pointer to lpfc hba data structure.
*
* This routine initializes the HBA and brings a HBA online. During this
* process, the management interface is blocked to prevent user space access
* to the HBA interfering with the driver initialization.
*
* Return codes
* 0 - successful
* 1 - failed
**/
int
lpfc_online(struct lpfc_hba *phba)
{
struct lpfc_vport *vport;
struct lpfc_vport **vports;
int i, error = 0;
bool vpis_cleared = false;
if (!phba)
return 0;
vport = phba->pport;
if (!(vport->fc_flag & FC_OFFLINE_MODE))
return 0;
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0458 Bring Adapter online\n");
lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
if (phba->sli_rev == LPFC_SLI_REV4) {
if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
lpfc_unblock_mgmt_io(phba);
return 1;
}
spin_lock_irq(&phba->hbalock);
if (!phba->sli4_hba.max_cfg_param.vpi_used)
vpis_cleared = true;
spin_unlock_irq(&phba->hbalock);
/* Reestablish the local initiator port.
* The offline process destroyed the previous lport.
*/
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
!phba->nvmet_support) {
error = lpfc_nvme_create_localport(phba->pport);
if (error)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6132 NVME restore reg failed "
"on nvmei error x%x\n", error);
}
} else {
lpfc_sli_queue_init(phba);
if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
lpfc_unblock_mgmt_io(phba);
return 1;
}
}
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
struct Scsi_Host *shost;
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
if (phba->sli_rev == LPFC_SLI_REV4) {
vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
if ((vpis_cleared) &&
(vports[i]->port_type !=
LPFC_PHYSICAL_PORT))
vports[i]->vpi = 0;
}
spin_unlock_irq(shost->host_lock);
}
}
lpfc_destroy_vport_work_array(phba, vports);
if (phba->cfg_xri_rebalancing)
lpfc_create_multixri_pools(phba);
lpfc_cpuhp_add(phba);
lpfc_unblock_mgmt_io(phba);
return 0;
}
/**
* lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
* @phba: pointer to lpfc hba data structure.
*
* This routine marks a HBA's management interface as not blocked. Once the
* HBA's management interface is marked as not blocked, all the user space
* access to the HBA, whether they are from sysfs interface or libdfc
* interface will be allowed. The HBA is set to block the management interface
* when the driver prepares the HBA interface for online or offline and then
* set to unblock the management interface afterwards.
**/
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
unsigned long iflag;
spin_lock_irqsave(&phba->hbalock, iflag);
phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
spin_unlock_irqrestore(&phba->hbalock, iflag);
}
/**
* lpfc_offline_prep - Prepare a HBA to be brought offline
* @phba: pointer to lpfc hba data structure.
* @mbx_action: flag for mailbox shutdown action.
*
* This routine is invoked to prepare a HBA to be brought offline. It performs
* unregistration login to all the nodes on all vports and flushes the mailbox
* queue to make it ready to be brought offline.
**/
void
lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
{
struct lpfc_vport *vport = phba->pport;
struct lpfc_nodelist *ndlp, *next_ndlp;
struct lpfc_vport **vports;
struct Scsi_Host *shost;
int i;
int offline;
bool hba_pci_err;
if (vport->fc_flag & FC_OFFLINE_MODE)
return;
lpfc_block_mgmt_io(phba, mbx_action);
lpfc_linkdown(phba);
offline = pci_channel_offline(phba->pcidev);
hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);
/* Issue an unreg_login to all nodes on all vports */
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
if (vports[i]->load_flag & FC_UNLOADING)
continue;
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
spin_unlock_irq(shost->host_lock);
shost = lpfc_shost_from_vport(vports[i]);
list_for_each_entry_safe(ndlp, next_ndlp,
&vports[i]->fc_nodes,
nlp_listp) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
spin_unlock_irq(&ndlp->lock);
if (offline || hba_pci_err) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~(NLP_UNREG_INP |
NLP_RPI_REGISTERED);
spin_unlock_irq(&ndlp->lock);
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli_rpi_release(vports[i],
ndlp);
} else {
lpfc_unreg_rpi(vports[i], ndlp);
}
/*
* Whenever an SLI4 port goes offline, free the
* RPI. Get a new RPI when the adapter port
* comes back online.
*/
if (phba->sli_rev == LPFC_SLI_REV4) {
lpfc_printf_vlog(vports[i], KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"0011 Free RPI x%x on "
"ndlp: x%px did x%x\n",
ndlp->nlp_rpi, ndlp,
ndlp->nlp_DID);
lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
}
if (ndlp->nlp_type & NLP_FABRIC) {
lpfc_disc_state_machine(vports[i], ndlp,
NULL, NLP_EVT_DEVICE_RECOVERY);
/* Don't remove the node unless the node
* has been unregistered with the
* transport, and we're not in recovery
* before dev_loss_tmo triggered.
* Otherwise, let dev_loss take care of
* the node.
*/
if (!(ndlp->save_flags &
NLP_IN_RECOV_POST_DEV_LOSS) &&
!(ndlp->fc4_xpt_flags &
(NVME_XPT_REGD | SCSI_XPT_REGD)))
lpfc_disc_state_machine
(vports[i], ndlp,
NULL,
NLP_EVT_DEVICE_RM);
}
}
}
}
lpfc_destroy_vport_work_array(phba, vports);
lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
if (phba->wq)
flush_workqueue(phba->wq);
}
/**
* lpfc_offline - Bring a HBA offline
* @phba: pointer to lpfc hba data structure.
*
* This routine actually brings a HBA offline. It stops all the timers
* associated with the HBA, brings down the SLI layer, and eventually
* marks the HBA as in offline state for the upper layer protocol.
**/
void
lpfc_offline(struct lpfc_hba *phba)
{
struct Scsi_Host *shost;
struct lpfc_vport **vports;
int i;
if (phba->pport->fc_flag & FC_OFFLINE_MODE)
return;
/* stop port and all timers associated with this hba */
lpfc_stop_port(phba);
/* Tear down the local and target port registrations. The
* nvme transports need to cleanup.
*/
lpfc_nvmet_destroy_targetport(phba);
lpfc_nvme_destroy_localport(phba->pport);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
lpfc_stop_vport_timers(vports[i]);
lpfc_destroy_vport_work_array(phba, vports);
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0460 Bring Adapter offline\n");
/* Bring down the SLI Layer and cleanup. The HBA is offline
now. */
lpfc_sli_hba_down(phba);
spin_lock_irq(&phba->hbalock);
phba->work_ha = 0;
spin_unlock_irq(&phba->hbalock);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
vports[i]->work_port_events = 0;
vports[i]->fc_flag |= FC_OFFLINE_MODE;
spin_unlock_irq(shost->host_lock);
}
lpfc_destroy_vport_work_array(phba, vports);
/* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
* in hba_unset
*/
if (phba->pport->fc_flag & FC_OFFLINE_MODE)
__lpfc_cpuhp_remove(phba);
if (phba->cfg_xri_rebalancing)
lpfc_destroy_multixri_pools(phba);
}
/**
* lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
* @phba: pointer to lpfc hba data structure.
*
* This routine is to free all the SCSI buffers and IOCBs from the driver
* list back to kernel. It is called from lpfc_pci_remove_one to free
* the internal resources before the device is removed from the system.
**/
static void
lpfc_scsi_free(struct lpfc_hba *phba)
{
struct lpfc_io_buf *sb, *sb_next;
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
return;
spin_lock_irq(&phba->hbalock);
/* Release all the lpfc_scsi_bufs maintained by this host. */
spin_lock(&phba->scsi_buf_list_put_lock);
list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
list) {
list_del(&sb->list);
dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
sb->dma_handle);
kfree(sb);
phba->total_scsi_bufs--;
}
spin_unlock(&phba->scsi_buf_list_put_lock);
spin_lock(&phba->scsi_buf_list_get_lock);
list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
list) {
list_del(&sb->list);
dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
sb->dma_handle);
kfree(sb);
phba->total_scsi_bufs--;
}
spin_unlock(&phba->scsi_buf_list_get_lock);
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
* @phba: pointer to lpfc hba data structure.
*
* This routine is to free all the IO buffers and IOCBs from the driver
* list back to kernel. It is called from lpfc_pci_remove_one to free
* the internal resources before the device is removed from the system.
**/
void
lpfc_io_free(struct lpfc_hba *phba)
{
struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
struct lpfc_sli4_hdw_queue *qp;
int idx;
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
qp = &phba->sli4_hba.hdwq[idx];
/* Release all the lpfc_nvme_bufs maintained by this host. */
spin_lock(&qp->io_buf_list_put_lock);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&qp->lpfc_io_buf_list_put,
list) {
list_del(&lpfc_ncmd->list);
qp->put_io_bufs--;
dma_pool_free(phba->lpfc_sg_dma_buf_pool,
lpfc_ncmd->data, lpfc_ncmd->dma_handle);
if (phba->cfg_xpsgl && !phba->nvmet_support)
lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
kfree(lpfc_ncmd);
qp->total_io_bufs--;
}
spin_unlock(&qp->io_buf_list_put_lock);
spin_lock(&qp->io_buf_list_get_lock);
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&qp->lpfc_io_buf_list_get,
list) {
list_del(&lpfc_ncmd->list);
qp->get_io_bufs--;
dma_pool_free(phba->lpfc_sg_dma_buf_pool,
lpfc_ncmd->data, lpfc_ncmd->dma_handle);
if (phba->cfg_xpsgl && !phba->nvmet_support)
lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
kfree(lpfc_ncmd);
qp->total_io_bufs--;
}
spin_unlock(&qp->io_buf_list_get_lock);
}
}
/**
* lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
* @phba: pointer to lpfc hba data structure.
*
* This routine first calculates the sizes of the current els and allocated
* scsi sgl lists, and then goes through all sgls to updates the physical
* XRIs assigned due to port function reset. During port initialization, the
* current els and allocated scsi sgl lists are 0s.
*
* Return codes
* 0 - successful (for now, it always returns 0)
**/
int
lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
{
struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
uint16_t i, lxri, xri_cnt, els_xri_cnt;
LIST_HEAD(els_sgl_list);
int rc;
/*
* update on pci function's els xri-sgl list
*/
els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
/* els xri-sgl expanded */
xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3157 ELS xri-sgl count increased from "
"%d to %d\n", phba->sli4_hba.els_xri_cnt,
els_xri_cnt);
/* allocate the additional els sgls */
for (i = 0; i < xri_cnt; i++) {
sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
GFP_KERNEL);
if (sglq_entry == NULL) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"2562 Failure to allocate an "
"ELS sgl entry:%d\n", i);
rc = -ENOMEM;
goto out_free_mem;
}
sglq_entry->buff_type = GEN_BUFF_TYPE;
sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
&sglq_entry->phys);
if (sglq_entry->virt == NULL) {
kfree(sglq_entry);
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"2563 Failure to allocate an "
"ELS mbuf:%d\n", i);
rc = -ENOMEM;
goto out_free_mem;
}
sglq_entry->sgl = sglq_entry->virt;
memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
sglq_entry->state = SGL_FREED;
list_add_tail(&sglq_entry->list, &els_sgl_list);
}
spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
list_splice_init(&els_sgl_list,
&phba->sli4_hba.lpfc_els_sgl_list);
spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
} else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
/* els xri-sgl shrinked */
xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3158 ELS xri-sgl count decreased from "
"%d to %d\n", phba->sli4_hba.els_xri_cnt,
els_xri_cnt);
spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
&els_sgl_list);
/* release extra els sgls from list */
for (i = 0; i < xri_cnt; i++) {
list_remove_head(&els_sgl_list,
sglq_entry, struct lpfc_sglq, list);
if (sglq_entry) {
__lpfc_mbuf_free(phba, sglq_entry->virt,
sglq_entry->phys);
kfree(sglq_entry);
}
}
list_splice_init(&els_sgl_list,
&phba->sli4_hba.lpfc_els_sgl_list);
spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
} else
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3163 ELS xri-sgl count unchanged: %d\n",
els_xri_cnt);
phba->sli4_hba.els_xri_cnt = els_xri_cnt;
/* update xris to els sgls on the list */
sglq_entry = NULL;
sglq_entry_next = NULL;
list_for_each_entry_safe(sglq_entry, sglq_entry_next,
&phba->sli4_hba.lpfc_els_sgl_list, list) {
lxri = lpfc_sli4_next_xritag(phba);
if (lxri == NO_XRI) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"2400 Failed to allocate xri for "
"ELS sgl\n");
rc = -ENOMEM;
goto out_free_mem;
}
sglq_entry->sli4_lxritag = lxri;
sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
}
return 0;
out_free_mem:
lpfc_free_els_sgl_list(phba);
return rc;
}
/**
* lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
* @phba: pointer to lpfc hba data structure.
*
* This routine first calculates the sizes of the current els and allocated
* scsi sgl lists, and then goes through all sgls to updates the physical
* XRIs assigned due to port function reset. During port initialization, the
* current els and allocated scsi sgl lists are 0s.
*
* Return codes
* 0 - successful (for now, it always returns 0)
**/
int
lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
{
struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
uint16_t i, lxri, xri_cnt, els_xri_cnt;
uint16_t nvmet_xri_cnt;
LIST_HEAD(nvmet_sgl_list);
int rc;
/*
* update on pci function's nvmet xri-sgl list
*/
els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
/* For NVMET, ALL remaining XRIs are dedicated for IO processing */
nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
/* els xri-sgl expanded */
xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"6302 NVMET xri-sgl cnt grew from %d to %d\n",
phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
/* allocate the additional nvmet sgls */
for (i = 0; i < xri_cnt; i++) {
sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
GFP_KERNEL);
if (sglq_entry == NULL) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"6303 Failure to allocate an "
"NVMET sgl entry:%d\n", i);
rc = -ENOMEM;
goto out_free_mem;
}
sglq_entry->buff_type = NVMET_BUFF_TYPE;
sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
&sglq_entry->phys);
if (sglq_entry->virt == NULL) {
kfree(sglq_entry);
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"6304 Failure to allocate an "
"NVMET buf:%d\n", i);
rc = -ENOMEM;
goto out_free_mem;
}
sglq_entry->sgl = sglq_entry->virt;
memset(sglq_entry->sgl, 0,
phba->cfg_sg_dma_buf_size);
sglq_entry->state = SGL_FREED;
list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
}
spin_lock_irq(&phba->hbalock);
spin_lock(&phba->sli4_hba.sgl_list_lock);
list_splice_init(&nvmet_sgl_list,
&phba->sli4_hba.lpfc_nvmet_sgl_list);
spin_unlock(&phba->sli4_hba.sgl_list_lock);
spin_unlock_irq(&phba->hbalock);
} else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
/* nvmet xri-sgl shrunk */
xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"6305 NVMET xri-sgl count decreased from "
"%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
nvmet_xri_cnt);
spin_lock_irq(&phba->hbalock);
spin_lock(&phba->sli4_hba.sgl_list_lock);
list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
&nvmet_sgl_list);
/* release extra nvmet sgls from list */
for (i = 0; i < xri_cnt; i++) {
list_remove_head(&nvmet_sgl_list,
sglq_entry, struct lpfc_sglq, list);
if (sglq_entry) {
lpfc_nvmet_buf_free(phba, sglq_entry->virt,
sglq_entry->phys);
kfree(sglq_entry);
}
}
list_splice_init(&nvmet_sgl_list,
&phba->sli4_hba.lpfc_nvmet_sgl_list);
spin_unlock(&phba->sli4_hba.sgl_list_lock);
spin_unlock_irq(&phba->hbalock);
} else
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"6306 NVMET xri-sgl count unchanged: %d\n",
nvmet_xri_cnt);
phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
/* update xris to nvmet sgls on the list */
sglq_entry = NULL;
sglq_entry_next = NULL;
list_for_each_entry_safe(sglq_entry, sglq_entry_next,
&phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
lxri = lpfc_sli4_next_xritag(phba);
if (lxri == NO_XRI) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"6307 Failed to allocate xri for "
"NVMET sgl\n");
rc = -ENOMEM;
goto out_free_mem;
}
sglq_entry->sli4_lxritag = lxri;
sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
}
return 0;
out_free_mem:
lpfc_free_nvmet_sgl_list(phba);
return rc;
}
int
lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
{
LIST_HEAD(blist);
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_io_buf *lpfc_cmd;
struct lpfc_io_buf *iobufp, *prev_iobufp;
int idx, cnt, xri, inserted;
cnt = 0;
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
qp = &phba->sli4_hba.hdwq[idx];
spin_lock_irq(&qp->io_buf_list_get_lock);
spin_lock(&qp->io_buf_list_put_lock);
/* Take everything off the get and put lists */
list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
list_splice(&qp->lpfc_io_buf_list_put, &blist);
INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
cnt += qp->get_io_bufs + qp->put_io_bufs;
qp->get_io_bufs = 0;
qp->put_io_bufs = 0;
qp->total_io_bufs = 0;
spin_unlock(&qp->io_buf_list_put_lock);
spin_unlock_irq(&qp->io_buf_list_get_lock);
}
/*
* Take IO buffers off blist and put on cbuf sorted by XRI.
* This is because POST_SGL takes a sequential range of XRIs
* to post to the firmware.
*/
for (idx = 0; idx < cnt; idx++) {
list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
if (!lpfc_cmd)
return cnt;
if (idx == 0) {
list_add_tail(&lpfc_cmd->list, cbuf);
continue;
}
xri = lpfc_cmd->cur_iocbq.sli4_xritag;
inserted = 0;
prev_iobufp = NULL;
list_for_each_entry(iobufp, cbuf, list) {
if (xri < iobufp->cur_iocbq.sli4_xritag) {
if (prev_iobufp)
list_add(&lpfc_cmd->list,
&prev_iobufp->list);
else
list_add(&lpfc_cmd->list, cbuf);
inserted = 1;
break;
}
prev_iobufp = iobufp;
}
if (!inserted)
list_add_tail(&lpfc_cmd->list, cbuf);
}
return cnt;
}
int
lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
{
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_io_buf *lpfc_cmd;
int idx, cnt;
unsigned long iflags;
qp = phba->sli4_hba.hdwq;
cnt = 0;
while (!list_empty(cbuf)) {
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
list_remove_head(cbuf, lpfc_cmd,
struct lpfc_io_buf, list);
if (!lpfc_cmd)
return cnt;
cnt++;
qp = &phba->sli4_hba.hdwq[idx];
lpfc_cmd->hdwq_no = idx;
lpfc_cmd->hdwq = qp;
lpfc_cmd->cur_iocbq.cmd_cmpl = NULL;
spin_lock_irqsave(&qp->io_buf_list_put_lock, iflags);
list_add_tail(&lpfc_cmd->list,
&qp->lpfc_io_buf_list_put);
qp->put_io_bufs++;
qp->total_io_bufs++;
spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
iflags);
}
}
return cnt;
}
/**
* lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
* @phba: pointer to lpfc hba data structure.
*
* This routine first calculates the sizes of the current els and allocated
* scsi sgl lists, and then goes through all sgls to updates the physical
* XRIs assigned due to port function reset. During port initialization, the
* current els and allocated scsi sgl lists are 0s.
*
* Return codes
* 0 - successful (for now, it always returns 0)
**/
int
lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
{
struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
uint16_t i, lxri, els_xri_cnt;
uint16_t io_xri_cnt, io_xri_max;
LIST_HEAD(io_sgl_list);
int rc, cnt;
/*
* update on pci function's allocated nvme xri-sgl list
*/
/* maximum number of xris available for nvme buffers */
els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
phba->sli4_hba.io_xri_max = io_xri_max;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"6074 Current allocated XRI sgl count:%d, "
"maximum XRI count:%d els_xri_cnt:%d\n\n",
phba->sli4_hba.io_xri_cnt,
phba->sli4_hba.io_xri_max,
els_xri_cnt);
cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
/* max nvme xri shrunk below the allocated nvme buffers */
io_xri_cnt = phba->sli4_hba.io_xri_cnt -
phba->sli4_hba.io_xri_max;
/* release the extra allocated nvme buffers */
for (i = 0; i < io_xri_cnt; i++) {
list_remove_head(&io_sgl_list, lpfc_ncmd,
struct lpfc_io_buf, list);
if (lpfc_ncmd) {
dma_pool_free(phba->lpfc_sg_dma_buf_pool,
lpfc_ncmd->data,
lpfc_ncmd->dma_handle);
kfree(lpfc_ncmd);
}
}
phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
}
/* update xris associated to remaining allocated nvme buffers */
lpfc_ncmd = NULL;
lpfc_ncmd_next = NULL;
phba->sli4_hba.io_xri_cnt = cnt;
list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
&io_sgl_list, list) {
lxri = lpfc_sli4_next_xritag(phba);
if (lxri == NO_XRI) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"6075 Failed to allocate xri for "
"nvme buffer\n");
rc = -ENOMEM;
goto out_free_mem;
}
lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
}
cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
return 0;
out_free_mem:
lpfc_io_free(phba);
return rc;
}
/**
* lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
* @phba: Pointer to lpfc hba data structure.
* @num_to_alloc: The requested number of buffers to allocate.
*
* This routine allocates nvme buffers for device with SLI-4 interface spec,
* the nvme buffer contains all the necessary information needed to initiate
* an I/O. After allocating up to @num_to_allocate IO buffers and put
* them on a list, it post them to the port by using SGL block post.
*
* Return codes:
* int - number of IO buffers that were allocated and posted.
* 0 = failure, less than num_to_alloc is a partial failure.
**/
int
lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
{
struct lpfc_io_buf *lpfc_ncmd;
struct lpfc_iocbq *pwqeq;
uint16_t iotag, lxri = 0;
int bcnt, num_posted;
LIST_HEAD(prep_nblist);
LIST_HEAD(post_nblist);
LIST_HEAD(nvme_nblist);
phba->sli4_hba.io_xri_cnt = 0;
for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
if (!lpfc_ncmd)
break;
/*
* Get memory from the pci pool to map the virt space to
* pci bus space for an I/O. The DMA buffer includes the
* number of SGE's necessary to support the sg_tablesize.
*/
lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
GFP_KERNEL,
&lpfc_ncmd->dma_handle);
if (!lpfc_ncmd->data) {
kfree(lpfc_ncmd);
break;
}
if (phba->cfg_xpsgl && !phba->nvmet_support) {
INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
} else {
/*
* 4K Page alignment is CRITICAL to BlockGuard, double
* check to be sure.
*/
if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
(((unsigned long)(lpfc_ncmd->data) &
(unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"3369 Memory alignment err: "
"addr=%lx\n",
(unsigned long)lpfc_ncmd->data);
dma_pool_free(phba->lpfc_sg_dma_buf_pool,
lpfc_ncmd->data,
lpfc_ncmd->dma_handle);
kfree(lpfc_ncmd);
break;
}
}
INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
lxri = lpfc_sli4_next_xritag(phba);
if (lxri == NO_XRI) {
dma_pool_free(phba->lpfc_sg_dma_buf_pool,
lpfc_ncmd->data, lpfc_ncmd->dma_handle);
kfree(lpfc_ncmd);
break;
}
pwqeq = &lpfc_ncmd->cur_iocbq;
/* Allocate iotag for lpfc_ncmd->cur_iocbq. */
iotag = lpfc_sli_next_iotag(phba, pwqeq);
if (iotag == 0) {
dma_pool_free(phba->lpfc_sg_dma_buf_pool,
lpfc_ncmd->data, lpfc_ncmd->dma_handle);
kfree(lpfc_ncmd);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6121 Failed to allocate IOTAG for"
" XRI:0x%x\n", lxri);
lpfc_sli4_free_xri(phba, lxri);
break;
}
pwqeq->sli4_lxritag = lxri;
pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
/* Initialize local short-hand pointers. */
lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
lpfc_ncmd->cur_iocbq.io_buf = lpfc_ncmd;
spin_lock_init(&lpfc_ncmd->buf_lock);
/* add the nvme buffer to a post list */
list_add_tail(&lpfc_ncmd->list, &post_nblist);
phba->sli4_hba.io_xri_cnt++;
}
lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
"6114 Allocate %d out of %d requested new NVME "
"buffers of size x%zu bytes\n", bcnt, num_to_alloc,
sizeof(*lpfc_ncmd));
/* post the list of nvme buffer sgls to port if available */
if (!list_empty(&post_nblist))
num_posted = lpfc_sli4_post_io_sgl_list(
phba, &post_nblist, bcnt);
else
num_posted = 0;
return num_posted;
}
static uint64_t
lpfc_get_wwpn(struct lpfc_hba *phba)
{
uint64_t wwn;
int rc;
LPFC_MBOXQ_t *mboxq;
MAILBOX_t *mb;
mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!mboxq)
return (uint64_t)-1;
/* First get WWN of HBA instance */
lpfc_read_nv(phba, mboxq);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6019 Mailbox failed , mbxCmd x%x "
"READ_NV, mbxStatus x%x\n",
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
bf_get(lpfc_mqe_status, &mboxq->u.mqe));
mempool_free(mboxq, phba->mbox_mem_pool);
return (uint64_t) -1;
}
mb = &mboxq->u.mb;
memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
/* wwn is WWPN of HBA instance */
mempool_free(mboxq, phba->mbox_mem_pool);
if (phba->sli_rev == LPFC_SLI_REV4)
return be64_to_cpu(wwn);
else
return rol64(wwn, 32);
}
static unsigned short lpfc_get_sg_tablesize(struct lpfc_hba *phba)
{
if (phba->sli_rev == LPFC_SLI_REV4)
if (phba->cfg_xpsgl && !phba->nvmet_support)
return LPFC_MAX_SG_TABLESIZE;
else
return phba->cfg_scsi_seg_cnt;
else
return phba->cfg_sg_seg_cnt;
}
/**
* lpfc_vmid_res_alloc - Allocates resources for VMID
* @phba: pointer to lpfc hba data structure.
* @vport: pointer to vport data structure
*
* This routine allocated the resources needed for the VMID.
*
* Return codes
* 0 on Success
* Non-0 on Failure
*/
static int
lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
/* VMID feature is supported only on SLI4 */
if (phba->sli_rev == LPFC_SLI_REV3) {
phba->cfg_vmid_app_header = 0;
phba->cfg_vmid_priority_tagging = 0;
}
if (lpfc_is_vmid_enabled(phba)) {
vport->vmid =
kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
GFP_KERNEL);
if (!vport->vmid)
return -ENOMEM;
rwlock_init(&vport->vmid_lock);
/* Set the VMID parameters for the vport */
vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
vport->vmid_inactivity_timeout =
phba->cfg_vmid_inactivity_timeout;
vport->max_vmid = phba->cfg_max_vmid;
vport->cur_vmid_cnt = 0;
vport->vmid_priority_range = bitmap_zalloc
(LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
if (!vport->vmid_priority_range) {
kfree(vport->vmid);
return -ENOMEM;
}
hash_init(vport->hash_table);
}
return 0;
}
/**
* lpfc_create_port - Create an FC port
* @phba: pointer to lpfc hba data structure.
* @instance: a unique integer ID to this FC port.
* @dev: pointer to the device data structure.
*
* This routine creates a FC port for the upper layer protocol. The FC port
* can be created on top of either a physical port or a virtual port provided
* by the HBA. This routine also allocates a SCSI host data structure (shost)
* and associates the FC port created before adding the shost into the SCSI
* layer.
*
* Return codes
* @vport - pointer to the virtual N_Port data structure.
* NULL - port create failed.
**/
struct lpfc_vport *
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
{
struct lpfc_vport *vport;
struct Scsi_Host *shost = NULL;
struct scsi_host_template *template;
int error = 0;
int i;
uint64_t wwn;
bool use_no_reset_hba = false;
int rc;
if (lpfc_no_hba_reset_cnt) {
if (phba->sli_rev < LPFC_SLI_REV4 &&
dev == &phba->pcidev->dev) {
/* Reset the port first */
lpfc_sli_brdrestart(phba);
rc = lpfc_sli_chipset_init(phba);
if (rc)
return NULL;
}
wwn = lpfc_get_wwpn(phba);
}
for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
if (wwn == lpfc_no_hba_reset[i]) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"6020 Setting use_no_reset port=%llx\n",
wwn);
use_no_reset_hba = true;
break;
}
}
/* Seed template for SCSI host registration */
if (dev == &phba->pcidev->dev) {
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
/* Seed physical port template */
template = &lpfc_template;
if (use_no_reset_hba)
/* template is for a no reset SCSI Host */
template->eh_host_reset_handler = NULL;
/* Seed updated value of sg_tablesize */
template->sg_tablesize = lpfc_get_sg_tablesize(phba);
} else {
/* NVMET is for physical port only */
template = &lpfc_template_nvme;
}
} else {
/* Seed vport template */
template = &lpfc_vport_template;
/* Seed updated value of sg_tablesize */
template->sg_tablesize = lpfc_get_sg_tablesize(phba);
}
shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
if (!shost)
goto out;
vport = (struct lpfc_vport *) shost->hostdata;
vport->phba = phba;
vport->load_flag |= FC_LOADING;
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
vport->fc_rscn_flush = 0;
lpfc_get_vport_cfgparam(vport);
/* Adjust value in vport */
vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
shost->unique_id = instance;
shost->max_id = LPFC_MAX_TARGET;
shost->max_lun = vport->cfg_max_luns;
shost->this_id = -1;
shost->max_cmd_len = 16;
if (phba->sli_rev == LPFC_SLI_REV4) {
if (!phba->cfg_fcp_mq_threshold ||
phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
phba->cfg_fcp_mq_threshold);
shost->dma_boundary =
phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
} else
/* SLI-3 has a limited number of hardware queues (3),
* thus there is only one for FCP processing.
*/
shost->nr_hw_queues = 1;
/*
* Set initial can_queue value since 0 is no longer supported and
* scsi_add_host will fail. This will be adjusted later based on the
* max xri value determined in hba setup.
*/
shost->can_queue = phba->cfg_hba_queue_depth - 10;
if (dev != &phba->pcidev->dev) {
shost->transportt = lpfc_vport_transport_template;
vport->port_type = LPFC_NPIV_PORT;
} else {
shost->transportt = lpfc_transport_template;
vport->port_type = LPFC_PHYSICAL_PORT;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
"9081 CreatePort TMPLATE type %x TBLsize %d "
"SEGcnt %d/%d\n",
vport->port_type, shost->sg_tablesize,
phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
/* Allocate the resources for VMID */
rc = lpfc_vmid_res_alloc(phba, vport);
if (rc)
goto out_put_shost;
/* Initialize all internally managed lists. */
INIT_LIST_HEAD(&vport->fc_nodes);
INIT_LIST_HEAD(&vport->rcv_buffer_list);
spin_lock_init(&vport->work_port_lock);
timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
lpfc_setup_bg(phba, shost);
error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
if (error)
goto out_free_vmid;
spin_lock_irq(&phba->port_list_lock);
list_add_tail(&vport->listentry, &phba->port_list);
spin_unlock_irq(&phba->port_list_lock);
return vport;
out_free_vmid:
kfree(vport->vmid);
bitmap_free(vport->vmid_priority_range);
out_put_shost:
scsi_host_put(shost);
out:
return NULL;
}
/**
* destroy_port - destroy an FC port
* @vport: pointer to an lpfc virtual N_Port data structure.
*
* This routine destroys a FC port from the upper layer protocol. All the
* resources associated with the port are released.
**/
void
destroy_port(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
lpfc_debugfs_terminate(vport);
fc_remove_host(shost);
scsi_remove_host(shost);
spin_lock_irq(&phba->port_list_lock);
list_del_init(&vport->listentry);
spin_unlock_irq(&phba->port_list_lock);
lpfc_cleanup(vport);
return;
}
/**
* lpfc_get_instance - Get a unique integer ID
*
* This routine allocates a unique integer ID from lpfc_hba_index pool. It
* uses the kernel idr facility to perform the task.
*
* Return codes:
* instance - a unique integer ID allocated as the new instance.
* -1 - lpfc get instance failed.
**/
int
lpfc_get_instance(void)
{
int ret;
ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
return ret < 0 ? -1 : ret;
}
/**
* lpfc_scan_finished - method for SCSI layer to detect whether scan is done
* @shost: pointer to SCSI host data structure.
* @time: elapsed time of the scan in jiffies.
*
* This routine is called by the SCSI layer with a SCSI host to determine
* whether the scan host is finished.
*
* Note: there is no scan_start function as adapter initialization will have
* asynchronously kicked off the link initialization.
*
* Return codes
* 0 - SCSI host scan is not over yet.
* 1 - SCSI host scan is over.
**/
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int stat = 0;
spin_lock_irq(shost->host_lock);
if (vport->load_flag & FC_UNLOADING) {
stat = 1;
goto finished;
}
if (time >= msecs_to_jiffies(30 * 1000)) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0461 Scanning longer than 30 "
"seconds. Continuing initialization\n");
stat = 1;
goto finished;
}
if (time >= msecs_to_jiffies(15 * 1000) &&
phba->link_state <= LPFC_LINK_DOWN) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0465 Link down longer than 15 "
"seconds. Continuing initialization\n");
stat = 1;
goto finished;
}
if (vport->port_state != LPFC_VPORT_READY)
goto finished;
if (vport->num_disc_nodes || vport->fc_prli_sent)
goto finished;
if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
goto finished;
if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
goto finished;
stat = 1;
finished:
spin_unlock_irq(shost->host_lock);
return stat;
}
static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
fc_host_supported_speeds(shost) = 0;
/*
* Avoid reporting supported link speed for FCoE as it can't be
* controlled via FCoE.
*/
if (phba->hba_flag & HBA_FCOE_MODE)
return;
if (phba->lmt & LMT_256Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
if (phba->lmt & LMT_128Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
if (phba->lmt & LMT_64Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
if (phba->lmt & LMT_32Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
if (phba->lmt & LMT_16Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
if (phba->lmt & LMT_10Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
if (phba->lmt & LMT_8Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
if (phba->lmt & LMT_4Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
if (phba->lmt & LMT_2Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
if (phba->lmt & LMT_1Gb)
fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
}
/**
* lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
* @shost: pointer to SCSI host data structure.
*
* This routine initializes a given SCSI host attributes on a FC port. The
* SCSI host can be either on top of a physical port or a virtual port.
**/
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
/*
* Set fixed host attributes. Must done after lpfc_sli_hba_setup().
*/
fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
fc_host_supported_classes(shost) = FC_COS_CLASS3;
memset(fc_host_supported_fc4s(shost), 0,
sizeof(fc_host_supported_fc4s(shost)));
fc_host_supported_fc4s(shost)[2] = 1;
fc_host_supported_fc4s(shost)[7] = 1;
lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
sizeof fc_host_symbolic_name(shost));
lpfc_host_supported_speeds_set(shost);
fc_host_maxframe_size(shost) =
(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
/* This value is also unchanging */
memset(fc_host_active_fc4s(shost), 0,
sizeof(fc_host_active_fc4s(shost)));
fc_host_active_fc4s(shost)[2] = 1;
fc_host_active_fc4s(shost)[7] = 1;
fc_host_max_npiv_vports(shost) = phba->max_vpi;
spin_lock_irq(shost->host_lock);
vport->load_flag &= ~FC_LOADING;
spin_unlock_irq(shost->host_lock);
}
/**
* lpfc_stop_port_s3 - Stop SLI3 device port
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to stop an SLI3 device port, it stops the device
* from generating interrupts and stops the device driver's timers for the
* device.
**/
static void
lpfc_stop_port_s3(struct lpfc_hba *phba)
{
/* Clear all interrupt enable conditions */
writel(0, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
/* Clear all pending interrupts */
writel(0xffffffff, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
/* Reset some HBA SLI setup states */
lpfc_stop_hba_timers(phba);
phba->pport->work_port_events = 0;
}
/**
* lpfc_stop_port_s4 - Stop SLI4 device port
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to stop an SLI4 device port, it stops the device
* from generating interrupts and stops the device driver's timers for the
* device.
**/
static void
lpfc_stop_port_s4(struct lpfc_hba *phba)
{
/* Reset some HBA SLI4 setup states */
lpfc_stop_hba_timers(phba);
if (phba->pport)
phba->pport->work_port_events = 0;
phba->sli4_hba.intr_enable = 0;
}
/**
* lpfc_stop_port - Wrapper function for stopping hba port
* @phba: Pointer to HBA context object.
*
* This routine wraps the actual SLI3 or SLI4 hba stop port routine from
* the API jump table function pointer from the lpfc_hba struct.
**/
void
lpfc_stop_port(struct lpfc_hba *phba)
{
phba->lpfc_stop_port(phba);
if (phba->wq)
flush_workqueue(phba->wq);
}
/**
* lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
* @phba: Pointer to hba for which this call is being executed.
*
* This routine starts the timer waiting for the FCF rediscovery to complete.
**/
void
lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
{
unsigned long fcf_redisc_wait_tmo =
(jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
/* Start fcf rediscovery wait period timer */
mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
spin_lock_irq(&phba->hbalock);
/* Allow action to new fcf asynchronous event */
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
/* Mark the FCF rediscovery pending state */
phba->fcf.fcf_flag |= FCF_REDISC_PEND;
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
* @t: Timer context used to obtain the pointer to lpfc hba data structure.
*
* This routine is invoked when waiting for FCF table rediscover has been
* timed out. If new FCF record(s) has (have) been discovered during the
* wait period, a new FCF event shall be added to the FCOE async event
* list, and then worker thread shall be waked up for processing from the
* worker thread context.
**/
static void
lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
{
struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
/* Don't send FCF rediscovery event if timer cancelled */
spin_lock_irq(&phba->hbalock);
if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
spin_unlock_irq(&phba->hbalock);
return;
}
/* Clear FCF rediscovery timer pending flag */
phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
/* FCF rediscovery event to worker thread */
phba->fcf.fcf_flag |= FCF_REDISC_EVT;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2776 FCF rediscover quiescent timer expired\n");
/* wake up worker thread */
lpfc_worker_wake_up(phba);
}
/**
* lpfc_vmid_poll - VMID timeout detection
* @t: Timer context used to obtain the pointer to lpfc hba data structure.
*
* This routine is invoked when there is no I/O on by a VM for the specified
* amount of time. When this situation is detected, the VMID has to be
* deregistered from the switch and all the local resources freed. The VMID
* will be reassigned to the VM once the I/O begins.
**/
static void
lpfc_vmid_poll(struct timer_list *t)
{
struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
u32 wake_up = 0;
/* check if there is a need to issue QFPA */
if (phba->pport->vmid_priority_tagging) {
wake_up = 1;
phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
}
/* Is the vmid inactivity timer enabled */
if (phba->pport->vmid_inactivity_timeout ||
phba->pport->load_flag & FC_DEREGISTER_ALL_APP_ID) {
wake_up = 1;
phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
}
if (wake_up)
lpfc_worker_wake_up(phba);
/* restart the timer for the next iteration */
mod_timer(&phba->inactive_vmid_poll, jiffies + msecs_to_jiffies(1000 *
LPFC_VMID_TIMER));
}
/**
* lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
* @phba: pointer to lpfc hba data structure.
* @acqe_link: pointer to the async link completion queue entry.
*
* This routine is to parse the SLI4 link-attention link fault code.
**/
static void
lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
struct lpfc_acqe_link *acqe_link)
{
switch (bf_get(lpfc_acqe_fc_la_att_type, acqe_link)) {
case LPFC_FC_LA_TYPE_LINK_DOWN:
case LPFC_FC_LA_TYPE_TRUNKING_EVENT:
case LPFC_FC_LA_TYPE_ACTIVATE_FAIL:
case LPFC_FC_LA_TYPE_LINK_RESET_PRTCL_EVT:
break;
default:
switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
case LPFC_ASYNC_LINK_FAULT_NONE:
case LPFC_ASYNC_LINK_FAULT_LOCAL:
case LPFC_ASYNC_LINK_FAULT_REMOTE:
case LPFC_ASYNC_LINK_FAULT_LR_LRR:
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0398 Unknown link fault code: x%x\n",
bf_get(lpfc_acqe_link_fault, acqe_link));
break;
}
break;
}
}
/**
* lpfc_sli4_parse_latt_type - Parse sli4 link attention type
* @phba: pointer to lpfc hba data structure.
* @acqe_link: pointer to the async link completion queue entry.
*
* This routine is to parse the SLI4 link attention type and translate it
* into the base driver's link attention type coding.
*
* Return: Link attention type in terms of base driver's coding.
**/
static uint8_t
lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
struct lpfc_acqe_link *acqe_link)
{
uint8_t att_type;
switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
case LPFC_ASYNC_LINK_STATUS_DOWN:
case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
att_type = LPFC_ATT_LINK_DOWN;
break;
case LPFC_ASYNC_LINK_STATUS_UP:
/* Ignore physical link up events - wait for logical link up */
att_type = LPFC_ATT_RESERVED;
break;
case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
att_type = LPFC_ATT_LINK_UP;
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0399 Invalid link attention type: x%x\n",
bf_get(lpfc_acqe_link_status, acqe_link));
att_type = LPFC_ATT_RESERVED;
break;
}
return att_type;
}
/**
* lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
* @phba: pointer to lpfc hba data structure.
*
* This routine is to get an SLI3 FC port's link speed in Mbps.
*
* Return: link speed in terms of Mbps.
**/
uint32_t
lpfc_sli_port_speed_get(struct lpfc_hba *phba)
{
uint32_t link_speed;
if (!lpfc_is_link_up(phba))
return 0;
if (phba->sli_rev <= LPFC_SLI_REV3) {
switch (phba->fc_linkspeed) {
case LPFC_LINK_SPEED_1GHZ:
link_speed = 1000;
break;
case LPFC_LINK_SPEED_2GHZ:
link_speed = 2000;
break;
case LPFC_LINK_SPEED_4GHZ:
link_speed = 4000;
break;
case LPFC_LINK_SPEED_8GHZ:
link_speed = 8000;
break;
case LPFC_LINK_SPEED_10GHZ:
link_speed = 10000;
break;
case LPFC_LINK_SPEED_16GHZ:
link_speed = 16000;
break;
default:
link_speed = 0;
}
} else {
if (phba->sli4_hba.link_state.logical_speed)
link_speed =
phba->sli4_hba.link_state.logical_speed;
else
link_speed = phba->sli4_hba.link_state.speed;
}
return link_speed;
}
/**
* lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
* @phba: pointer to lpfc hba data structure.
* @evt_code: asynchronous event code.
* @speed_code: asynchronous event link speed code.
*
* This routine is to parse the giving SLI4 async event link speed code into
* value of Mbps for the link speed.
*
* Return: link speed in terms of Mbps.
**/
static uint32_t
lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
uint8_t speed_code)
{
uint32_t port_speed;
switch (evt_code) {
case LPFC_TRAILER_CODE_LINK:
switch (speed_code) {
case LPFC_ASYNC_LINK_SPEED_ZERO:
port_speed = 0;
break;
case LPFC_ASYNC_LINK_SPEED_10MBPS:
port_speed = 10;
break;
case LPFC_ASYNC_LINK_SPEED_100MBPS:
port_speed = 100;
break;
case LPFC_ASYNC_LINK_SPEED_1GBPS:
port_speed = 1000;
break;
case LPFC_ASYNC_LINK_SPEED_10GBPS:
port_speed = 10000;
break;
case LPFC_ASYNC_LINK_SPEED_20GBPS:
port_speed = 20000;
break;
case LPFC_ASYNC_LINK_SPEED_25GBPS:
port_speed = 25000;
break;
case LPFC_ASYNC_LINK_SPEED_40GBPS:
port_speed = 40000;
break;
case LPFC_ASYNC_LINK_SPEED_100GBPS:
port_speed = 100000;
break;
default:
port_speed = 0;
}
break;
case LPFC_TRAILER_CODE_FC:
switch (speed_code) {
case LPFC_FC_LA_SPEED_UNKNOWN:
port_speed = 0;
break;
case LPFC_FC_LA_SPEED_1G:
port_speed = 1000;
break;
case LPFC_FC_LA_SPEED_2G:
port_speed = 2000;
break;
case LPFC_FC_LA_SPEED_4G:
port_speed = 4000;
break;
case LPFC_FC_LA_SPEED_8G:
port_speed = 8000;
break;
case LPFC_FC_LA_SPEED_10G:
port_speed = 10000;
break;
case LPFC_FC_LA_SPEED_16G:
port_speed = 16000;
break;
case LPFC_FC_LA_SPEED_32G:
port_speed = 32000;
break;
case LPFC_FC_LA_SPEED_64G:
port_speed = 64000;
break;
case LPFC_FC_LA_SPEED_128G:
port_speed = 128000;
break;
case LPFC_FC_LA_SPEED_256G:
port_speed = 256000;
break;
default:
port_speed = 0;
}
break;
default:
port_speed = 0;
}
return port_speed;
}
/**
* lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
* @phba: pointer to lpfc hba data structure.
* @acqe_link: pointer to the async link completion queue entry.
*
* This routine is to handle the SLI4 asynchronous FCoE link event.
**/
static void
lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
struct lpfc_acqe_link *acqe_link)
{
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
struct lpfc_mbx_read_top *la;
uint8_t att_type;
int rc;
att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
return;
phba->fcoe_eventtag = acqe_link->event_tag;
pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0395 The mboxq allocation failed\n");
return;
}
rc = lpfc_mbox_rsrc_prep(phba, pmb);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0396 mailbox allocation failed\n");
goto out_free_pmb;
}
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_all_cmd(phba);
/* Block ELS IOCBs until we have done process link event */
phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
/* Update link event statistics */
phba->sli.slistat.link_event++;
/* Create lpfc_handle_latt mailbox command from link ACQE */
lpfc_read_topology(phba, pmb, (struct lpfc_dmabuf *)pmb->ctx_buf);
pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
pmb->vport = phba->pport;
/* Keep the link status for extra SLI4 state machine reference */
phba->sli4_hba.link_state.speed =
lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
bf_get(lpfc_acqe_link_speed, acqe_link));
phba->sli4_hba.link_state.duplex =
bf_get(lpfc_acqe_link_duplex, acqe_link);
phba->sli4_hba.link_state.status =
bf_get(lpfc_acqe_link_status, acqe_link);
phba->sli4_hba.link_state.type =
bf_get(lpfc_acqe_link_type, acqe_link);
phba->sli4_hba.link_state.number =
bf_get(lpfc_acqe_link_number, acqe_link);
phba->sli4_hba.link_state.fault =
bf_get(lpfc_acqe_link_fault, acqe_link);
phba->sli4_hba.link_state.logical_speed =
bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2900 Async FC/FCoE Link event - Speed:%dGBit "
"duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
"Logical speed:%dMbps Fault:%d\n",
phba->sli4_hba.link_state.speed,
phba->sli4_hba.link_state.topology,
phba->sli4_hba.link_state.status,
phba->sli4_hba.link_state.type,
phba->sli4_hba.link_state.number,
phba->sli4_hba.link_state.logical_speed,
phba->sli4_hba.link_state.fault);
/*
* For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
* topology info. Note: Optional for non FC-AL ports.
*/
if (!(phba->hba_flag & HBA_FCOE_MODE)) {
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
goto out_free_pmb;
return;
}
/*
* For FCoE Mode: fill in all the topology information we need and call
* the READ_TOPOLOGY completion routine to continue without actually
* sending the READ_TOPOLOGY mailbox command to the port.
*/
/* Initialize completion status */
mb = &pmb->u.mb;
mb->mbxStatus = MBX_SUCCESS;
/* Parse port fault information field */
lpfc_sli4_parse_latt_fault(phba, acqe_link);
/* Parse and translate link attention fields */
la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
la->eventTag = acqe_link->event_tag;
bf_set(lpfc_mbx_read_top_att_type, la, att_type);
bf_set(lpfc_mbx_read_top_link_spd, la,
(bf_get(lpfc_acqe_link_speed, acqe_link)));
/* Fake the following irrelevant fields */
bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
bf_set(lpfc_mbx_read_top_il, la, 0);
bf_set(lpfc_mbx_read_top_pb, la, 0);
bf_set(lpfc_mbx_read_top_fa, la, 0);
bf_set(lpfc_mbx_read_top_mm, la, 0);
/* Invoke the lpfc_handle_latt mailbox command callback function */
lpfc_mbx_cmpl_read_topology(phba, pmb);
return;
out_free_pmb:
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
}
/**
* lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
* topology.
* @phba: pointer to lpfc hba data structure.
* @speed_code: asynchronous event link speed code.
*
* This routine is to parse the giving SLI4 async event link speed code into
* value of Read topology link speed.
*
* Return: link speed in terms of Read topology.
**/
static uint8_t
lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
{
uint8_t port_speed;
switch (speed_code) {
case LPFC_FC_LA_SPEED_1G:
port_speed = LPFC_LINK_SPEED_1GHZ;
break;
case LPFC_FC_LA_SPEED_2G:
port_speed = LPFC_LINK_SPEED_2GHZ;
break;
case LPFC_FC_LA_SPEED_4G:
port_speed = LPFC_LINK_SPEED_4GHZ;
break;
case LPFC_FC_LA_SPEED_8G:
port_speed = LPFC_LINK_SPEED_8GHZ;
break;
case LPFC_FC_LA_SPEED_16G:
port_speed = LPFC_LINK_SPEED_16GHZ;
break;
case LPFC_FC_LA_SPEED_32G:
port_speed = LPFC_LINK_SPEED_32GHZ;
break;
case LPFC_FC_LA_SPEED_64G:
port_speed = LPFC_LINK_SPEED_64GHZ;
break;
case LPFC_FC_LA_SPEED_128G:
port_speed = LPFC_LINK_SPEED_128GHZ;
break;
case LPFC_FC_LA_SPEED_256G:
port_speed = LPFC_LINK_SPEED_256GHZ;
break;
default:
port_speed = 0;
break;
}
return port_speed;
}
void
lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
{
if (!phba->rx_monitor) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"4411 Rx Monitor Info is empty.\n");
} else {
lpfc_rx_monitor_report(phba, phba->rx_monitor, NULL, 0,
LPFC_MAX_RXMONITOR_DUMP);
}
}
/**
* lpfc_cgn_update_stat - Save data into congestion stats buffer
* @phba: pointer to lpfc hba data structure.
* @dtag: FPIN descriptor received
*
* Increment the FPIN received counter/time when it happens.
*/
void
lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
{
struct lpfc_cgn_info *cp;
u32 value;
/* Make sure we have a congestion info buffer */
if (!phba->cgn_i)
return;
cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
/* Update congestion statistics */
switch (dtag) {
case ELS_DTAG_LNK_INTEGRITY:
le32_add_cpu(&cp->link_integ_notification, 1);
lpfc_cgn_update_tstamp(phba, &cp->stat_lnk);
break;
case ELS_DTAG_DELIVERY:
le32_add_cpu(&cp->delivery_notification, 1);
lpfc_cgn_update_tstamp(phba, &cp->stat_delivery);
break;
case ELS_DTAG_PEER_CONGEST:
le32_add_cpu(&cp->cgn_peer_notification, 1);
lpfc_cgn_update_tstamp(phba, &cp->stat_peer);
break;
case ELS_DTAG_CONGESTION:
le32_add_cpu(&cp->cgn_notification, 1);
lpfc_cgn_update_tstamp(phba, &cp->stat_fpin);
}
if (phba->cgn_fpin_frequency &&
phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
cp->cgn_stat_npm = value;
}
value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
LPFC_CGN_CRC32_SEED);
cp->cgn_info_crc = cpu_to_le32(value);
}
/**
* lpfc_cgn_update_tstamp - Update cmf timestamp
* @phba: pointer to lpfc hba data structure.
* @ts: structure to write the timestamp to.
*/
void
lpfc_cgn_update_tstamp(struct lpfc_hba *phba, struct lpfc_cgn_ts *ts)
{
struct timespec64 cur_time;
struct tm tm_val;
ktime_get_real_ts64(&cur_time);
time64_to_tm(cur_time.tv_sec, 0, &tm_val);
ts->month = tm_val.tm_mon + 1;
ts->day = tm_val.tm_mday;
ts->year = tm_val.tm_year - 100;
ts->hour = tm_val.tm_hour;
ts->minute = tm_val.tm_min;
ts->second = tm_val.tm_sec;
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"2646 Updated CMF timestamp : "
"%u/%u/%u %u:%u:%u\n",
ts->day, ts->month,
ts->year, ts->hour,
ts->minute, ts->second);
}
/**
* lpfc_cmf_stats_timer - Save data into registered congestion buffer
* @timer: Timer cookie to access lpfc private data
*
* Save the congestion event data every minute.
* On the hour collapse all the minute data into hour data. Every day
* collapse all the hour data into daily data. Separate driver
* and fabrc congestion event counters that will be saved out
* to the registered congestion buffer every minute.
*/
static enum hrtimer_restart
lpfc_cmf_stats_timer(struct hrtimer *timer)
{
struct lpfc_hba *phba;
struct lpfc_cgn_info *cp;
uint32_t i, index;
uint16_t value, mvalue;
uint64_t bps;
uint32_t mbps;
uint32_t dvalue, wvalue, lvalue, avalue;
uint64_t latsum;
__le16 *ptr;
__le32 *lptr;
__le16 *mptr;
phba = container_of(timer, struct lpfc_hba, cmf_stats_timer);
/* Make sure we have a congestion info buffer */
if (!phba->cgn_i)
return HRTIMER_NORESTART;
cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
phba->cgn_evt_timestamp = jiffies +
msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
phba->cgn_evt_minute++;
/* We should get to this point in the routine on 1 minute intervals */
lpfc_cgn_update_tstamp(phba, &cp->base_time);
if (phba->cgn_fpin_frequency &&
phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
cp->cgn_stat_npm = value;
}
/* Read and clear the latency counters for this minute */
lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
latsum = atomic64_read(&phba->cgn_latency_evt);
atomic_set(&phba->cgn_latency_evt_cnt, 0);
atomic64_set(&phba->cgn_latency_evt, 0);
/* We need to store MB/sec bandwidth in the congestion information.
* block_cnt is count of 512 byte blocks for the entire minute,
* bps will get bytes per sec before finally converting to MB/sec.
*/
bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
phba->rx_block_cnt = 0;
mvalue = bps / (1024 * 1024); /* convert to MB/sec */
/* Every minute */
/* cgn parameters */
cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
/* Fill in default LUN qdepth */
value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
cp->cgn_lunq = cpu_to_le16(value);
/* Record congestion buffer info - every minute
* cgn_driver_evt_cnt (Driver events)
* cgn_fabric_warn_cnt (Congestion Warnings)
* cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
* cgn_fabric_alarm_cnt (Congestion Alarms)
*/
index = ++cp->cgn_index_minute;
if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
cp->cgn_index_minute = 0;
index = 0;
}
/* Get the number of driver events in this sample and reset counter */
dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
atomic_set(&phba->cgn_driver_evt_cnt, 0);
/* Get the number of warning events - FPIN and Signal for this minute */
wvalue = 0;
if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
atomic_set(&phba->cgn_fabric_warn_cnt, 0);
/* Get the number of alarm events - FPIN and Signal for this minute */
avalue = 0;
if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
/* Collect the driver, warning, alarm and latency counts for this
* minute into the driver congestion buffer.
*/
ptr = &cp->cgn_drvr_min[index];
value = (uint16_t)dvalue;
*ptr = cpu_to_le16(value);
ptr = &cp->cgn_warn_min[index];
value = (uint16_t)wvalue;
*ptr = cpu_to_le16(value);
ptr = &cp->cgn_alarm_min[index];
value = (uint16_t)avalue;
*ptr = cpu_to_le16(value);
lptr = &cp->cgn_latency_min[index];
if (lvalue) {
lvalue = (uint32_t)div_u64(latsum, lvalue);
*lptr = cpu_to_le32(lvalue);
} else {
*lptr = 0;
}
/* Collect the bandwidth value into the driver's congesion buffer. */
mptr = &cp->cgn_bw_min[index];
*mptr = cpu_to_le16(mvalue);
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
index, dvalue, wvalue, *lptr, mvalue, avalue);
/* Every hour */
if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
/* Record congestion buffer info - every hour
* Collapse all minutes into an hour
*/
index = ++cp->cgn_index_hour;
if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
cp->cgn_index_hour = 0;
index = 0;
}
dvalue = 0;
wvalue = 0;
lvalue = 0;
avalue = 0;
mvalue = 0;
mbps = 0;
for (i = 0; i < LPFC_MIN_HOUR; i++) {
dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
mbps += le16_to_cpu(cp->cgn_bw_min[i]);
avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
}
if (lvalue) /* Avg of latency averages */
lvalue /= LPFC_MIN_HOUR;
if (mbps) /* Avg of Bandwidth averages */
mvalue = mbps / LPFC_MIN_HOUR;
lptr = &cp->cgn_drvr_hr[index];
*lptr = cpu_to_le32(dvalue);
lptr = &cp->cgn_warn_hr[index];
*lptr = cpu_to_le32(wvalue);
lptr = &cp->cgn_latency_hr[index];
*lptr = cpu_to_le32(lvalue);
mptr = &cp->cgn_bw_hr[index];
*mptr = cpu_to_le16(mvalue);
lptr = &cp->cgn_alarm_hr[index];
*lptr = cpu_to_le32(avalue);
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"2419 Congestion Info - hour "
"(%d): %d %d %d %d %d\n",
index, dvalue, wvalue, lvalue, mvalue, avalue);
}
/* Every day */
if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
/* Record congestion buffer info - every hour
* Collapse all hours into a day. Rotate days
* after LPFC_MAX_CGN_DAYS.
*/
index = ++cp->cgn_index_day;
if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
cp->cgn_index_day = 0;
index = 0;
}
dvalue = 0;
wvalue = 0;
lvalue = 0;
mvalue = 0;
mbps = 0;
avalue = 0;
for (i = 0; i < LPFC_HOUR_DAY; i++) {
dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
}
if (lvalue) /* Avg of latency averages */
lvalue /= LPFC_HOUR_DAY;
if (mbps) /* Avg of Bandwidth averages */
mvalue = mbps / LPFC_HOUR_DAY;
lptr = &cp->cgn_drvr_day[index];
*lptr = cpu_to_le32(dvalue);
lptr = &cp->cgn_warn_day[index];
*lptr = cpu_to_le32(wvalue);
lptr = &cp->cgn_latency_day[index];
*lptr = cpu_to_le32(lvalue);
mptr = &cp->cgn_bw_day[index];
*mptr = cpu_to_le16(mvalue);
lptr = &cp->cgn_alarm_day[index];
*lptr = cpu_to_le32(avalue);
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"2420 Congestion Info - daily (%d): "
"%d %d %d %d %d\n",
index, dvalue, wvalue, lvalue, mvalue, avalue);
}
/* Use the frequency found in the last rcv'ed FPIN */
value = phba->cgn_fpin_frequency;
cp->cgn_warn_freq = cpu_to_le16(value);
cp->cgn_alarm_freq = cpu_to_le16(value);
lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
LPFC_CGN_CRC32_SEED);
cp->cgn_info_crc = cpu_to_le32(lvalue);
hrtimer_forward_now(timer, ktime_set(0, LPFC_SEC_MIN * NSEC_PER_SEC));
return HRTIMER_RESTART;
}
/**
* lpfc_calc_cmf_latency - latency from start of rxate timer interval
* @phba: The Hba for which this call is being executed.
*
* The routine calculates the latency from the beginning of the CMF timer
* interval to the current point in time. It is called from IO completion
* when we exceed our Bandwidth limitation for the time interval.
*/
uint32_t
lpfc_calc_cmf_latency(struct lpfc_hba *phba)
{
struct timespec64 cmpl_time;
uint32_t msec = 0;
ktime_get_real_ts64(&cmpl_time);
/* This routine works on a ms granularity so sec and usec are
* converted accordingly.
*/
if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
NSEC_PER_MSEC;
} else {
if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
msec = (cmpl_time.tv_sec -
phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
msec += ((cmpl_time.tv_nsec -
phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
} else {
msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
1) * MSEC_PER_SEC;
msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
cmpl_time.tv_nsec) / NSEC_PER_MSEC);
}
}
return msec;
}
/**
* lpfc_cmf_timer - This is the timer function for one congestion
* rate interval.
* @timer: Pointer to the high resolution timer that expired
*/
static enum hrtimer_restart
lpfc_cmf_timer(struct hrtimer *timer)
{
struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
cmf_timer);
struct rx_info_entry entry;
uint32_t io_cnt;
uint32_t busy, max_read;
uint64_t total, rcv, lat, mbpi, extra, cnt;
int timer_interval = LPFC_CMF_INTERVAL;
uint32_t ms;
struct lpfc_cgn_stat *cgs;
int cpu;
/* Only restart the timer if congestion mgmt is on */
if (phba->cmf_active_mode == LPFC_CFG_OFF ||
!phba->cmf_latency.tv_sec) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6224 CMF timer exit: %d %lld\n",
phba->cmf_active_mode,
(uint64_t)phba->cmf_latency.tv_sec);
return HRTIMER_NORESTART;
}
/* If pport is not ready yet, just exit and wait for
* the next timer cycle to hit.
*/
if (!phba->pport)
goto skip;
/* Do not block SCSI IO while in the timer routine since
* total_bytes will be cleared
*/
atomic_set(&phba->cmf_stop_io, 1);
/* First we need to calculate the actual ms between
* the last timer interrupt and this one. We ask for
* LPFC_CMF_INTERVAL, however the actual time may
* vary depending on system overhead.
*/
ms = lpfc_calc_cmf_latency(phba);
/* Immediately after we calculate the time since the last
* timer interrupt, set the start time for the next
* interrupt
*/
ktime_get_real_ts64(&phba->cmf_latency);
phba->cmf_link_byte_count =
div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
/* Collect all the stats from the prior timer interval */
total = 0;
io_cnt = 0;
lat = 0;
rcv = 0;
for_each_present_cpu(cpu) {
cgs = per_cpu_ptr(phba->cmf_stat, cpu);
total += atomic64_xchg(&cgs->total_bytes, 0);
io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
lat += atomic64_xchg(&cgs->rx_latency, 0);
rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
}
/* Before we issue another CMF_SYNC_WQE, retrieve the BW
* returned from the last CMF_SYNC_WQE issued, from
* cmf_last_sync_bw. This will be the target BW for
* this next timer interval.
*/
if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
phba->link_state != LPFC_LINK_DOWN &&
phba->hba_flag & HBA_SETUP) {
mbpi = phba->cmf_last_sync_bw;
phba->cmf_last_sync_bw = 0;
extra = 0;
/* Calculate any extra bytes needed to account for the
* timer accuracy. If we are less than LPFC_CMF_INTERVAL
* calculate the adjustment needed for total to reflect
* a full LPFC_CMF_INTERVAL.
*/
if (ms && ms < LPFC_CMF_INTERVAL) {
cnt = div_u64(total, ms); /* bytes per ms */
cnt *= LPFC_CMF_INTERVAL; /* what total should be */
extra = cnt - total;
}
lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total + extra);
} else {
/* For Monitor mode or link down we want mbpi
* to be the full link speed
*/
mbpi = phba->cmf_link_byte_count;
extra = 0;
}
phba->cmf_timer_cnt++;
if (io_cnt) {
/* Update congestion info buffer latency in us */
atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
atomic64_add(lat, &phba->cgn_latency_evt);
}
busy = atomic_xchg(&phba->cmf_busy, 0);
max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
/* Calculate MBPI for the next timer interval */
if (mbpi) {
if (mbpi > phba->cmf_link_byte_count ||
phba->cmf_active_mode == LPFC_CFG_MONITOR)
mbpi = phba->cmf_link_byte_count;
/* Change max_bytes_per_interval to what the prior
* CMF_SYNC_WQE cmpl indicated.
*/
if (mbpi != phba->cmf_max_bytes_per_interval)
phba->cmf_max_bytes_per_interval = mbpi;
}
/* Save rxmonitor information for debug */
if (phba->rx_monitor) {
entry.total_bytes = total;
entry.cmf_bytes = total + extra;
entry.rcv_bytes = rcv;
entry.cmf_busy = busy;
entry.cmf_info = phba->cmf_active_info;
if (io_cnt) {
entry.avg_io_latency = div_u64(lat, io_cnt);
entry.avg_io_size = div_u64(rcv, io_cnt);
} else {
entry.avg_io_latency = 0;
entry.avg_io_size = 0;
}
entry.max_read_cnt = max_read;
entry.io_cnt = io_cnt;
entry.max_bytes_per_interval = mbpi;
if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
entry.timer_utilization = phba->cmf_last_ts;
else
entry.timer_utilization = ms;
entry.timer_interval = ms;
phba->cmf_last_ts = 0;
lpfc_rx_monitor_record(phba->rx_monitor, &entry);
}
if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
/* If Monitor mode, check if we are oversubscribed
* against the full line rate.
*/
if (mbpi && total > mbpi)
atomic_inc(&phba->cgn_driver_evt_cnt);
}
phba->rx_block_cnt += div_u64(rcv, 512); /* save 512 byte block cnt */
/* Since total_bytes has already been zero'ed, its okay to unblock
* after max_bytes_per_interval is setup.
*/
if (atomic_xchg(&phba->cmf_bw_wait, 0))
queue_work(phba->wq, &phba->unblock_request_work);
/* SCSI IO is now unblocked */
atomic_set(&phba->cmf_stop_io, 0);
skip:
hrtimer_forward_now(timer,
ktime_set(0, timer_interval * NSEC_PER_MSEC));
return HRTIMER_RESTART;
}
#define trunk_link_status(__idx)\
bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
"Link up" : "Link down") : "NA"
/* Did port __idx reported an error */
#define trunk_port_fault(__idx)\
bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
(port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
static void
lpfc_update_trunk_link_status(struct lpfc_hba *phba,
struct lpfc_acqe_fc_la *acqe_fc)
{
uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
u8 cnt = 0;
phba->sli4_hba.link_state.speed =
lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
phba->sli4_hba.link_state.logical_speed =
bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
/* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
phba->fc_linkspeed =
lpfc_async_link_speed_to_read_top(
phba,
bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
phba->trunk_link.link0.state =
bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
? LPFC_LINK_UP : LPFC_LINK_DOWN;
phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
cnt++;
}
if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
phba->trunk_link.link1.state =
bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
? LPFC_LINK_UP : LPFC_LINK_DOWN;
phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
cnt++;
}
if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
phba->trunk_link.link2.state =
bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
? LPFC_LINK_UP : LPFC_LINK_DOWN;
phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
cnt++;
}
if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
phba->trunk_link.link3.state =
bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
? LPFC_LINK_UP : LPFC_LINK_DOWN;
phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
cnt++;
}
if (cnt)
phba->trunk_link.phy_lnk_speed =
phba->sli4_hba.link_state.logical_speed / (cnt * 1000);
else
phba->trunk_link.phy_lnk_speed = LPFC_LINK_SPEED_UNKNOWN;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2910 Async FC Trunking Event - Speed:%d\n"
"\tLogical speed:%d "
"port0: %s port1: %s port2: %s port3: %s\n",
phba->sli4_hba.link_state.speed,
phba->sli4_hba.link_state.logical_speed,
trunk_link_status(0), trunk_link_status(1),
trunk_link_status(2), trunk_link_status(3));
if (phba->cmf_active_mode != LPFC_CFG_OFF)
lpfc_cmf_signal_init(phba);
if (port_fault)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3202 trunk error:0x%x (%s) seen on port0:%s "
/*
* SLI-4: We have only 0xA error codes
* defined as of now. print an appropriate
* message in case driver needs to be updated.
*/
"port1:%s port2:%s port3:%s\n", err, err > 0xA ?
"UNDEFINED. update driver." : trunk_errmsg[err],
trunk_port_fault(0), trunk_port_fault(1),
trunk_port_fault(2), trunk_port_fault(3));
}
/**
* lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
* @phba: pointer to lpfc hba data structure.
* @acqe_fc: pointer to the async fc completion queue entry.
*
* This routine is to handle the SLI4 asynchronous FC event. It will simply log
* that the event was received and then issue a read_topology mailbox command so
* that the rest of the driver will treat it the same as SLI3.
**/
static void
lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
{
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
struct lpfc_mbx_read_top *la;
char *log_level;
int rc;
if (bf_get(lpfc_trailer_type, acqe_fc) !=
LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2895 Non FC link Event detected.(%d)\n",
bf_get(lpfc_trailer_type, acqe_fc));
return;
}
if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
lpfc_update_trunk_link_status(phba, acqe_fc);
return;
}
/* Keep the link status for extra SLI4 state machine reference */
phba->sli4_hba.link_state.speed =
lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
phba->sli4_hba.link_state.topology =
bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
phba->sli4_hba.link_state.status =
bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
phba->sli4_hba.link_state.type =
bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
phba->sli4_hba.link_state.number =
bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
phba->sli4_hba.link_state.fault =
bf_get(lpfc_acqe_link_fault, acqe_fc);
phba->sli4_hba.link_state.link_status =
bf_get(lpfc_acqe_fc_la_link_status, acqe_fc);
/*
* Only select attention types need logical speed modification to what
* was previously set.
*/
if (phba->sli4_hba.link_state.status >= LPFC_FC_LA_TYPE_LINK_UP &&
phba->sli4_hba.link_state.status < LPFC_FC_LA_TYPE_ACTIVATE_FAIL) {
if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
LPFC_FC_LA_TYPE_LINK_DOWN)
phba->sli4_hba.link_state.logical_speed = 0;
else if (!phba->sli4_hba.conf_trunk)
phba->sli4_hba.link_state.logical_speed =
bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
}
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2896 Async FC event - Speed:%dGBaud Topology:x%x "
"LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
"%dMbps Fault:x%x Link Status:x%x\n",
phba->sli4_hba.link_state.speed,
phba->sli4_hba.link_state.topology,
phba->sli4_hba.link_state.status,
phba->sli4_hba.link_state.type,
phba->sli4_hba.link_state.number,
phba->sli4_hba.link_state.logical_speed,
phba->sli4_hba.link_state.fault,
phba->sli4_hba.link_state.link_status);
/*
* The following attention types are informational only, providing
* further details about link status. Overwrite the value of
* link_state.status appropriately. No further action is required.
*/
if (phba->sli4_hba.link_state.status >= LPFC_FC_LA_TYPE_ACTIVATE_FAIL) {
switch (phba->sli4_hba.link_state.status) {
case LPFC_FC_LA_TYPE_ACTIVATE_FAIL:
log_level = KERN_WARNING;
phba->sli4_hba.link_state.status =
LPFC_FC_LA_TYPE_LINK_DOWN;
break;
case LPFC_FC_LA_TYPE_LINK_RESET_PRTCL_EVT:
/*
* During bb credit recovery establishment, receiving
* this attention type is normal. Link Up attention
* type is expected to occur before this informational
* attention type so keep the Link Up status.
*/
log_level = KERN_INFO;
phba->sli4_hba.link_state.status =
LPFC_FC_LA_TYPE_LINK_UP;
break;
default:
log_level = KERN_INFO;
break;
}
lpfc_log_msg(phba, log_level, LOG_SLI,
"2992 Async FC event - Informational Link "
"Attention Type x%x\n",
bf_get(lpfc_acqe_fc_la_att_type, acqe_fc));
return;
}
pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2897 The mboxq allocation failed\n");
return;
}
rc = lpfc_mbox_rsrc_prep(phba, pmb);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2898 The mboxq prep failed\n");
goto out_free_pmb;
}
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_all_cmd(phba);
/* Block ELS IOCBs until we have done process link event */
phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
/* Update link event statistics */
phba->sli.slistat.link_event++;
/* Create lpfc_handle_latt mailbox command from link ACQE */
lpfc_read_topology(phba, pmb, (struct lpfc_dmabuf *)pmb->ctx_buf);
pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
pmb->vport = phba->pport;
if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
switch (phba->sli4_hba.link_state.status) {
case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
phba->link_flag |= LS_MDS_LINK_DOWN;
break;
case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
phba->link_flag |= LS_MDS_LOOPBACK;
break;
default:
break;
}
/* Initialize completion status */
mb = &pmb->u.mb;
mb->mbxStatus = MBX_SUCCESS;
/* Parse port fault information field */
lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
/* Parse and translate link attention fields */
la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
la->eventTag = acqe_fc->event_tag;
if (phba->sli4_hba.link_state.status ==
LPFC_FC_LA_TYPE_UNEXP_WWPN) {
bf_set(lpfc_mbx_read_top_att_type, la,
LPFC_FC_LA_TYPE_UNEXP_WWPN);
} else {
bf_set(lpfc_mbx_read_top_att_type, la,
LPFC_FC_LA_TYPE_LINK_DOWN);
}
/* Invoke the mailbox command callback function */
lpfc_mbx_cmpl_read_topology(phba, pmb);
return;
}
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
goto out_free_pmb;
return;
out_free_pmb:
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
}
/**
* lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
* @phba: pointer to lpfc hba data structure.
* @acqe_sli: pointer to the async SLI completion queue entry.
*
* This routine is to handle the SLI4 asynchronous SLI events.
**/
static void
lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
{
char port_name;
char message[128];
uint8_t status;
uint8_t evt_type;
uint8_t operational = 0;
struct temp_event temp_event_data;
struct lpfc_acqe_misconfigured_event *misconfigured;
struct lpfc_acqe_cgn_signal *cgn_signal;
struct Scsi_Host *shost;
struct lpfc_vport **vports;
int rc, i, cnt;
evt_type = bf_get(lpfc_trailer_type, acqe_sli);
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2901 Async SLI event - Type:%d, Event Data: x%08x "
"x%08x x%08x x%08x\n", evt_type,
acqe_sli->event_data1, acqe_sli->event_data2,
acqe_sli->event_data3, acqe_sli->trailer);
port_name = phba->Port[0];
if (port_name == 0x00)
port_name = '?'; /* get port name is empty */
switch (evt_type) {
case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
temp_event_data.data = (uint32_t)acqe_sli->event_data1;
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3190 Over Temperature:%d Celsius- Port Name %c\n",
acqe_sli->event_data1, port_name);
phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
shost = lpfc_shost_from_vport(phba->pport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(temp_event_data),
(char *)&temp_event_data,
SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX);
break;
case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
temp_event_data.event_code = LPFC_NORMAL_TEMP;
temp_event_data.data = (uint32_t)acqe_sli->event_data1;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_LDS_EVENT,
"3191 Normal Temperature:%d Celsius - Port Name %c\n",
acqe_sli->event_data1, port_name);
shost = lpfc_shost_from_vport(phba->pport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(temp_event_data),
(char *)&temp_event_data,
SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX);
break;
case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
misconfigured = (struct lpfc_acqe_misconfigured_event *)
&acqe_sli->event_data1;
/* fetch the status for this port */
switch (phba->sli4_hba.lnk_info.lnk_no) {
case LPFC_LINK_NUMBER_0:
status = bf_get(lpfc_sli_misconfigured_port0_state,
&misconfigured->theEvent);
operational = bf_get(lpfc_sli_misconfigured_port0_op,
&misconfigured->theEvent);
break;
case LPFC_LINK_NUMBER_1:
status = bf_get(lpfc_sli_misconfigured_port1_state,
&misconfigured->theEvent);
operational = bf_get(lpfc_sli_misconfigured_port1_op,
&misconfigured->theEvent);
break;
case LPFC_LINK_NUMBER_2:
status = bf_get(lpfc_sli_misconfigured_port2_state,
&misconfigured->theEvent);
operational = bf_get(lpfc_sli_misconfigured_port2_op,
&misconfigured->theEvent);
break;
case LPFC_LINK_NUMBER_3:
status = bf_get(lpfc_sli_misconfigured_port3_state,
&misconfigured->theEvent);
operational = bf_get(lpfc_sli_misconfigured_port3_op,
&misconfigured->theEvent);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3296 "
"LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
"event: Invalid link %d",
phba->sli4_hba.lnk_info.lnk_no);
return;
}
/* Skip if optic state unchanged */
if (phba->sli4_hba.lnk_info.optic_state == status)
return;
switch (status) {
case LPFC_SLI_EVENT_STATUS_VALID:
sprintf(message, "Physical Link is functional");
break;
case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
sprintf(message, "Optics faulted/incorrectly "
"installed/not installed - Reseat optics, "
"if issue not resolved, replace.");
break;
case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
sprintf(message,
"Optics of two types installed - Remove one "
"optic or install matching pair of optics.");
break;
case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
sprintf(message, "Incompatible optics - Replace with "
"compatible optics for card to function.");
break;
case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
sprintf(message, "Unqualified optics - Replace with "
"Avago optics for Warranty and Technical "
"Support - Link is%s operational",
(operational) ? " not" : "");
break;
case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
sprintf(message, "Uncertified optics - Replace with "
"Avago-certified optics to enable link "
"operation - Link is%s operational",
(operational) ? " not" : "");
break;
default:
/* firmware is reporting a status we don't know about */
sprintf(message, "Unknown event status x%02x", status);
break;
}
/* Issue READ_CONFIG mbox command to refresh supported speeds */
rc = lpfc_sli4_read_config(phba);
if (rc) {
phba->lmt = 0;
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"3194 Unable to retrieve supported "
"speeds, rc = 0x%x\n", rc);
}
rc = lpfc_sli4_refresh_params(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"3174 Unable to update pls support, "
"rc x%x\n", rc);
}
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL;
i++) {
shost = lpfc_shost_from_vport(vports[i]);
lpfc_host_supported_speeds_set(shost);
}
}
lpfc_destroy_vport_work_array(phba, vports);
phba->sli4_hba.lnk_info.optic_state = status;
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"3176 Port Name %c %s\n", port_name, message);
break;
case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3192 Remote DPort Test Initiated - "
"Event Data1:x%08x Event Data2: x%08x\n",
acqe_sli->event_data1, acqe_sli->event_data2);
break;
case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
/* Call FW to obtain active parms */
lpfc_sli4_cgn_parm_chg_evt(phba);
break;
case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
/* Misconfigured WWN. Reports that the SLI Port is configured
* to use FA-WWN, but the attached device doesn’t support it.
* Event Data1 - N.A, Event Data2 - N.A
* This event only happens on the physical port.
*/
lpfc_log_msg(phba, KERN_WARNING, LOG_SLI | LOG_DISCOVERY,
"2699 Misconfigured FA-PWWN - Attached device "
"does not support FA-PWWN\n");
phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_FABRIC;
memset(phba->pport->fc_portname.u.wwn, 0,
sizeof(struct lpfc_name));
break;
case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
/* EEPROM failure. No driver action is required */
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"2518 EEPROM failure - "
"Event Data1: x%08x Event Data2: x%08x\n",
acqe_sli->event_data1, acqe_sli->event_data2);
break;
case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
if (phba->cmf_active_mode == LPFC_CFG_OFF)
break;
cgn_signal = (struct lpfc_acqe_cgn_signal *)
&acqe_sli->event_data1;
phba->cgn_acqe_cnt++;
cnt = bf_get(lpfc_warn_acqe, cgn_signal);
atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
/* no threshold for CMF, even 1 signal will trigger an event */
/* Alarm overrides warning, so check that first */
if (cgn_signal->alarm_cnt) {
if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
/* Keep track of alarm cnt for CMF_SYNC_WQE */
atomic_add(cgn_signal->alarm_cnt,
&phba->cgn_sync_alarm_cnt);
}
} else if (cnt) {
/* signal action needs to be taken */
if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
/* Keep track of warning cnt for CMF_SYNC_WQE */
atomic_add(cnt, &phba->cgn_sync_warn_cnt);
}
}
break;
case LPFC_SLI_EVENT_TYPE_RD_SIGNAL:
/* May be accompanied by a temperature event */
lpfc_printf_log(phba, KERN_INFO,
LOG_SLI | LOG_LINK_EVENT | LOG_LDS_EVENT,
"2902 Remote Degrade Signaling: x%08x x%08x "
"x%08x\n",
acqe_sli->event_data1, acqe_sli->event_data2,
acqe_sli->event_data3);
break;
default:
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3193 Unrecognized SLI event, type: 0x%x",
evt_type);
break;
}
}
/**
* lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
* @vport: pointer to vport data structure.
*
* This routine is to perform Clear Virtual Link (CVL) on a vport in
* response to a CVL event.
*
* Return the pointer to the ndlp with the vport if successful, otherwise
* return NULL.
**/
static struct lpfc_nodelist *
lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
struct lpfc_hba *phba;
if (!vport)
return NULL;
phba = vport->phba;
if (!phba)
return NULL;
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = lpfc_nlp_init(vport, Fabric_DID);
if (!ndlp)
return NULL;
/* Set the node type */
ndlp->nlp_type |= NLP_FABRIC;
/* Put ndlp onto node list */
lpfc_enqueue_node(vport, ndlp);
}
if ((phba->pport->port_state < LPFC_FLOGI) &&
(phba->pport->port_state != LPFC_VPORT_FAILED))
return NULL;
/* If virtual link is not yet instantiated ignore CVL */
if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
&& (vport->port_state != LPFC_VPORT_FAILED))
return NULL;
shost = lpfc_shost_from_vport(vport);
if (!shost)
return NULL;
lpfc_linkdown_port(vport);
lpfc_cleanup_pending_mbox(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_CVL_RCVD;
spin_unlock_irq(shost->host_lock);
return ndlp;
}
/**
* lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
* @phba: pointer to lpfc hba data structure.
*
* This routine is to perform Clear Virtual Link (CVL) on all vports in
* response to a FCF dead event.
**/
static void
lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i;
vports = lpfc_create_vport_work_array(phba);
if (vports)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
lpfc_sli4_perform_vport_cvl(vports[i]);
lpfc_destroy_vport_work_array(phba, vports);
}
/**
* lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
* @phba: pointer to lpfc hba data structure.
* @acqe_fip: pointer to the async fcoe completion queue entry.
*
* This routine is to handle the SLI4 asynchronous fcoe event.
**/
static void
lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
struct lpfc_acqe_fip *acqe_fip)
{
uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
int rc;
struct lpfc_vport *vport;
struct lpfc_nodelist *ndlp;
int active_vlink_present;
struct lpfc_vport **vports;
int i;
phba->fc_eventTag = acqe_fip->event_tag;
phba->fcoe_eventtag = acqe_fip->event_tag;
switch (event_type) {
case LPFC_FIP_EVENT_TYPE_NEW_FCF:
case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2546 New FCF event, evt_tag:x%x, "
"index:x%x\n",
acqe_fip->event_tag,
acqe_fip->index);
else
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
LOG_DISCOVERY,
"2788 FCF param modified event, "
"evt_tag:x%x, index:x%x\n",
acqe_fip->event_tag,
acqe_fip->index);
if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
/*
* During period of FCF discovery, read the FCF
* table record indexed by the event to update
* FCF roundrobin failover eligible FCF bmask.
*/
lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
LOG_DISCOVERY,
"2779 Read FCF (x%x) for updating "
"roundrobin FCF failover bmask\n",
acqe_fip->index);
rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
}
/* If the FCF discovery is in progress, do nothing. */
spin_lock_irq(&phba->hbalock);
if (phba->hba_flag & FCF_TS_INPROG) {
spin_unlock_irq(&phba->hbalock);
break;
}
/* If fast FCF failover rescan event is pending, do nothing */
if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
spin_unlock_irq(&phba->hbalock);
break;
}
/* If the FCF has been in discovered state, do nothing. */
if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
spin_unlock_irq(&phba->hbalock);
break;
}
spin_unlock_irq(&phba->hbalock);
/* Otherwise, scan the entire FCF table and re-discover SAN */
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2770 Start FCF table scan per async FCF "
"event, evt_tag:x%x, index:x%x\n",
acqe_fip->event_tag, acqe_fip->index);
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
LPFC_FCOE_FCF_GET_FIRST);
if (rc)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2547 Issue FCF scan read FCF mailbox "
"command failed (x%x)\n", rc);
break;
case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2548 FCF Table full count 0x%x tag 0x%x\n",
bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
acqe_fip->event_tag);
break;
case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2549 FCF (x%x) disconnected from network, "
"tag:x%x\n", acqe_fip->index,
acqe_fip->event_tag);
/*
* If we are in the middle of FCF failover process, clear
* the corresponding FCF bit in the roundrobin bitmap.
*/
spin_lock_irq(&phba->hbalock);
if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
(phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
spin_unlock_irq(&phba->hbalock);
/* Update FLOGI FCF failover eligible FCF bmask */
lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
break;
}
spin_unlock_irq(&phba->hbalock);
/* If the event is not for currently used fcf do nothing */
if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
break;
/*
* Otherwise, request the port to rediscover the entire FCF
* table for a fast recovery from case that the current FCF
* is no longer valid as we are not in the middle of FCF
* failover process already.
*/
spin_lock_irq(&phba->hbalock);
/* Mark the fast failover process in progress */
phba->fcf.fcf_flag |= FCF_DEAD_DISC;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2771 Start FCF fast failover process due to "
"FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
"\n", acqe_fip->event_tag, acqe_fip->index);
rc = lpfc_sli4_redisc_fcf_table(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
LOG_TRACE_EVENT,
"2772 Issue FCF rediscover mailbox "
"command failed, fail through to FCF "
"dead event\n");
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* Last resort will fail over by treating this
* as a link down to FCF registration.
*/
lpfc_sli4_fcf_dead_failthrough(phba);
} else {
/* Reset FCF roundrobin bmask for new discovery */
lpfc_sli4_clear_fcf_rr_bmask(phba);
/*
* Handling fast FCF failover to a DEAD FCF event is
* considered equalivant to receiving CVL to all vports.
*/
lpfc_sli4_perform_all_vport_cvl(phba);
}
break;
case LPFC_FIP_EVENT_TYPE_CVL:
phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"2718 Clear Virtual Link Received for VPI 0x%x"
" tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
vport = lpfc_find_vport_by_vpid(phba,
acqe_fip->index);
ndlp = lpfc_sli4_perform_vport_cvl(vport);
if (!ndlp)
break;
active_vlink_present = 0;
vports = lpfc_create_vport_work_array(phba);
if (vports) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL;
i++) {
if ((!(vports[i]->fc_flag &
FC_VPORT_CVL_RCVD)) &&
(vports[i]->port_state > LPFC_FDISC)) {
active_vlink_present = 1;
break;
}
}
lpfc_destroy_vport_work_array(phba, vports);
}
/*
* Don't re-instantiate if vport is marked for deletion.
* If we are here first then vport_delete is going to wait
* for discovery to complete.
*/
if (!(vport->load_flag & FC_UNLOADING) &&
active_vlink_present) {
/*
* If there are other active VLinks present,
* re-instantiate the Vlink using FDISC.
*/
mod_timer(&ndlp->nlp_delayfunc,
jiffies + msecs_to_jiffies(1000));
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
vport->port_state = LPFC_FDISC;
} else {
/*
* Otherwise, we request port to rediscover
* the entire FCF table for a fast recovery
* from possible case that the current FCF
* is no longer valid if we are not already
* in the FCF failover process.
*/
spin_lock_irq(&phba->hbalock);
if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
spin_unlock_irq(&phba->hbalock);
break;
}
/* Mark the fast failover process in progress */
phba->fcf.fcf_flag |= FCF_ACVL_DISC;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
LOG_DISCOVERY,
"2773 Start FCF failover per CVL, "
"evt_tag:x%x\n", acqe_fip->event_tag);
rc = lpfc_sli4_redisc_fcf_table(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
LOG_TRACE_EVENT,
"2774 Issue FCF rediscover "
"mailbox command failed, "
"through to CVL event\n");
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* Last resort will be re-try on the
* the current registered FCF entry.
*/
lpfc_retry_pport_discovery(phba);
} else
/*
* Reset FCF roundrobin bmask for new
* discovery.
*/
lpfc_sli4_clear_fcf_rr_bmask(phba);
}
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0288 Unknown FCoE event type 0x%x event tag "
"0x%x\n", event_type, acqe_fip->event_tag);
break;
}
}
/**
* lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
* @phba: pointer to lpfc hba data structure.
* @acqe_dcbx: pointer to the async dcbx completion queue entry.
*
* This routine is to handle the SLI4 asynchronous dcbx event.
**/
static void
lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
struct lpfc_acqe_dcbx *acqe_dcbx)
{
phba->fc_eventTag = acqe_dcbx->event_tag;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0290 The SLI4 DCBX asynchronous event is not "
"handled yet\n");
}
/**
* lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
* @phba: pointer to lpfc hba data structure.
* @acqe_grp5: pointer to the async grp5 completion queue entry.
*
* This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
* is an asynchronous notified of a logical link speed change. The Port
* reports the logical link speed in units of 10Mbps.
**/
static void
lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
struct lpfc_acqe_grp5 *acqe_grp5)
{
uint16_t prev_ll_spd;
phba->fc_eventTag = acqe_grp5->event_tag;
phba->fcoe_eventtag = acqe_grp5->event_tag;
prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
phba->sli4_hba.link_state.logical_speed =
(bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2789 GRP5 Async Event: Updating logical link speed "
"from %dMbps to %dMbps\n", prev_ll_spd,
phba->sli4_hba.link_state.logical_speed);
}
/**
* lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
* @phba: pointer to lpfc hba data structure.
*
* This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
* is an asynchronous notification of a request to reset CM stats.
**/
static void
lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
{
if (!phba->cgn_i)
return;
lpfc_init_congestion_stat(phba);
}
/**
* lpfc_cgn_params_val - Validate FW congestion parameters.
* @phba: pointer to lpfc hba data structure.
* @p_cfg_param: pointer to FW provided congestion parameters.
*
* This routine validates the congestion parameters passed
* by the FW to the driver via an ACQE event.
**/
static void
lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
{
spin_lock_irq(&phba->hbalock);
if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
LPFC_CFG_MONITOR)) {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
"6225 CMF mode param out of range: %d\n",
p_cfg_param->cgn_param_mode);
p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
}
spin_unlock_irq(&phba->hbalock);
}
static const char * const lpfc_cmf_mode_to_str[] = {
"OFF",
"MANAGED",
"MONITOR",
};
/**
* lpfc_cgn_params_parse - Process a FW cong parm change event
* @phba: pointer to lpfc hba data structure.
* @p_cgn_param: pointer to a data buffer with the FW cong params.
* @len: the size of pdata in bytes.
*
* This routine validates the congestion management buffer signature
* from the FW, validates the contents and makes corrections for
* valid, in-range values. If the signature magic is correct and
* after parameter validation, the contents are copied to the driver's
* @phba structure. If the magic is incorrect, an error message is
* logged.
**/
static void
lpfc_cgn_params_parse(struct lpfc_hba *phba,
struct lpfc_cgn_param *p_cgn_param, uint32_t len)
{
struct lpfc_cgn_info *cp;
uint32_t crc, oldmode;
char acr_string[4] = {0};
/* Make sure the FW has encoded the correct magic number to
* validate the congestion parameter in FW memory.
*/
if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
"4668 FW cgn parm buffer data: "
"magic 0x%x version %d mode %d "
"level0 %d level1 %d "
"level2 %d byte13 %d "
"byte14 %d byte15 %d "
"byte11 %d byte12 %d activeMode %d\n",
p_cgn_param->cgn_param_magic,
p_cgn_param->cgn_param_version,
p_cgn_param->cgn_param_mode,
p_cgn_param->cgn_param_level0,
p_cgn_param->cgn_param_level1,
p_cgn_param->cgn_param_level2,
p_cgn_param->byte13,
p_cgn_param->byte14,
p_cgn_param->byte15,
p_cgn_param->byte11,
p_cgn_param->byte12,
phba->cmf_active_mode);
oldmode = phba->cmf_active_mode;
/* Any parameters out of range are corrected to defaults
* by this routine. No need to fail.
*/
lpfc_cgn_params_val(phba, p_cgn_param);
/* Parameters are verified, move them into driver storage */
spin_lock_irq(&phba->hbalock);
memcpy(&phba->cgn_p, p_cgn_param,
sizeof(struct lpfc_cgn_param));
/* Update parameters in congestion info buffer now */
if (phba->cgn_i) {
cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
LPFC_CGN_CRC32_SEED);
cp->cgn_info_crc = cpu_to_le32(crc);
}
spin_unlock_irq(&phba->hbalock);
phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
switch (oldmode) {
case LPFC_CFG_OFF:
if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
/* Turning CMF on */
lpfc_cmf_start(phba);
if (phba->link_state >= LPFC_LINK_UP) {
phba->cgn_reg_fpin =
phba->cgn_init_reg_fpin;
phba->cgn_reg_signal =
phba->cgn_init_reg_signal;
lpfc_issue_els_edc(phba->pport, 0);
}
}
break;
case LPFC_CFG_MANAGED:
switch (phba->cgn_p.cgn_param_mode) {
case LPFC_CFG_OFF:
/* Turning CMF off */
lpfc_cmf_stop(phba);
if (phba->link_state >= LPFC_LINK_UP)
lpfc_issue_els_edc(phba->pport, 0);
break;
case LPFC_CFG_MONITOR:
phba->cmf_max_bytes_per_interval =
phba->cmf_link_byte_count;
/* Resume blocked IO - unblock on workqueue */
queue_work(phba->wq,
&phba->unblock_request_work);
break;
}
break;
case LPFC_CFG_MONITOR:
switch (phba->cgn_p.cgn_param_mode) {
case LPFC_CFG_OFF:
/* Turning CMF off */
lpfc_cmf_stop(phba);
if (phba->link_state >= LPFC_LINK_UP)
lpfc_issue_els_edc(phba->pport, 0);
break;
case LPFC_CFG_MANAGED:
lpfc_cmf_signal_init(phba);
break;
}
break;
}
if (oldmode != LPFC_CFG_OFF ||
oldmode != phba->cgn_p.cgn_param_mode) {
if (phba->cgn_p.cgn_param_mode == LPFC_CFG_MANAGED)
scnprintf(acr_string, sizeof(acr_string), "%u",
phba->cgn_p.cgn_param_level0);
else
scnprintf(acr_string, sizeof(acr_string), "NA");
dev_info(&phba->pcidev->dev, "%d: "
"4663 CMF: Mode %s acr %s\n",
phba->brd_no,
lpfc_cmf_mode_to_str
[phba->cgn_p.cgn_param_mode],
acr_string);
}
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
"4669 FW cgn parm buf wrong magic 0x%x "
"version %d\n", p_cgn_param->cgn_param_magic,
p_cgn_param->cgn_param_version);
}
}
/**
* lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
* @phba: pointer to lpfc hba data structure.
*
* This routine issues a read_object mailbox command to
* get the congestion management parameters from the FW
* parses it and updates the driver maintained values.
*
* Returns
* 0 if the object was empty
* -Eval if an error was encountered
* Count if bytes were read from object
**/
int
lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
{
int ret = 0;
struct lpfc_cgn_param *p_cgn_param = NULL;
u32 *pdata = NULL;
u32 len = 0;
/* Find out if the FW has a new set of congestion parameters. */
len = sizeof(struct lpfc_cgn_param);
pdata = kzalloc(len, GFP_KERNEL);
if (!pdata)
return -ENOMEM;
ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
pdata, len);
/* 0 means no data. A negative means error. A positive means
* bytes were copied.
*/
if (!ret) {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
"4670 CGN RD OBJ returns no data\n");
goto rd_obj_err;
} else if (ret < 0) {
/* Some error. Just exit and return it to the caller.*/
goto rd_obj_err;
}
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
"6234 READ CGN PARAMS Successful %d\n", len);
/* Parse data pointer over len and update the phba congestion
* parameters with values passed back. The receive rate values
* may have been altered in FW, but take no action here.
*/
p_cgn_param = (struct lpfc_cgn_param *)pdata;
lpfc_cgn_params_parse(phba, p_cgn_param, len);
rd_obj_err:
kfree(pdata);
return ret;
}
/**
* lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
* @phba: pointer to lpfc hba data structure.
*
* The FW generated Async ACQE SLI event calls this routine when
* the event type is an SLI Internal Port Event and the Event Code
* indicates a change to the FW maintained congestion parameters.
*
* This routine executes a Read_Object mailbox call to obtain the
* current congestion parameters maintained in FW and corrects
* the driver's active congestion parameters.
*
* The acqe event is not passed because there is no further data
* required.
*
* Returns nonzero error if event processing encountered an error.
* Zero otherwise for success.
**/
static int
lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
{
int ret = 0;
if (!phba->sli4_hba.pc_sli4_params.cmf) {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
"4664 Cgn Evt when E2E off. Drop event\n");
return -EACCES;
}
/* If the event is claiming an empty object, it's ok. A write
* could have cleared it. Only error is a negative return
* status.
*/
ret = lpfc_sli4_cgn_params_read(phba);
if (ret < 0) {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
"4667 Error reading Cgn Params (%d)\n",
ret);
} else if (!ret) {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
"4673 CGN Event empty object.\n");
}
return ret;
}
/**
* lpfc_sli4_async_event_proc - Process all the pending asynchronous event
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked by the worker thread to process all the pending
* SLI4 asynchronous events.
**/
void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
{
struct lpfc_cq_event *cq_event;
unsigned long iflags;
/* First, declare the async event has been handled */
spin_lock_irqsave(&phba->hbalock, iflags);
phba->hba_flag &= ~ASYNC_EVENT;
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Now, handle all the async events */
spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
cq_event, struct lpfc_cq_event, list);
spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
iflags);
/* Process the asynchronous event */
switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
case LPFC_TRAILER_CODE_LINK:
lpfc_sli4_async_link_evt(phba,
&cq_event->cqe.acqe_link);
break;
case LPFC_TRAILER_CODE_FCOE:
lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
break;
case LPFC_TRAILER_CODE_DCBX:
lpfc_sli4_async_dcbx_evt(phba,
&cq_event->cqe.acqe_dcbx);
break;
case LPFC_TRAILER_CODE_GRP5:
lpfc_sli4_async_grp5_evt(phba,
&cq_event->cqe.acqe_grp5);
break;
case LPFC_TRAILER_CODE_FC:
lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
break;
case LPFC_TRAILER_CODE_SLI:
lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
break;
case LPFC_TRAILER_CODE_CMSTAT:
lpfc_sli4_async_cmstat_evt(phba);
break;
default:
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"1804 Invalid asynchronous event code: "
"x%x\n", bf_get(lpfc_trailer_code,
&cq_event->cqe.mcqe_cmpl));
break;
}
/* Free the completion event processed to the free pool */
lpfc_sli4_cq_event_release(phba, cq_event);
spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
}
spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
}
/**
* lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked by the worker thread to process FCF table
* rediscovery pending completion event.
**/
void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
{
int rc;
spin_lock_irq(&phba->hbalock);
/* Clear FCF rediscovery timeout event */
phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
/* Clear driver fast failover FCF record flag */
phba->fcf.failover_rec.flag = 0;
/* Set state for FCF fast failover */
phba->fcf.fcf_flag |= FCF_REDISC_FOV;
spin_unlock_irq(&phba->hbalock);
/* Scan FCF table from the first entry to re-discover SAN */
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2777 Start post-quiescent FCF table scan\n");
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
if (rc)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2747 Issue FCF scan read FCF mailbox "
"command failed 0x%x\n", rc);
}
/**
* lpfc_api_table_setup - Set up per hba pci-device group func api jump table
* @phba: pointer to lpfc hba data structure.
* @dev_grp: The HBA PCI-Device group number.
*
* This routine is invoked to set up the per HBA PCI-Device group function
* API jump table entries.
*
* Return: 0 if success, otherwise -ENODEV
**/
int
lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
{
int rc;
/* Set up lpfc PCI-device group */
phba->pci_dev_grp = dev_grp;
/* The LPFC_PCI_DEV_OC uses SLI4 */
if (dev_grp == LPFC_PCI_DEV_OC)
phba->sli_rev = LPFC_SLI_REV4;
/* Set up device INIT API function jump table */
rc = lpfc_init_api_table_setup(phba, dev_grp);
if (rc)
return -ENODEV;
/* Set up SCSI API function jump table */
rc = lpfc_scsi_api_table_setup(phba, dev_grp);
if (rc)
return -ENODEV;
/* Set up SLI API function jump table */
rc = lpfc_sli_api_table_setup(phba, dev_grp);
if (rc)
return -ENODEV;
/* Set up MBOX API function jump table */
rc = lpfc_mbox_api_table_setup(phba, dev_grp);
if (rc)
return -ENODEV;
return 0;
}
/**
* lpfc_log_intr_mode - Log the active interrupt mode
* @phba: pointer to lpfc hba data structure.
* @intr_mode: active interrupt mode adopted.
*
* This routine it invoked to log the currently used active interrupt mode
* to the device.
**/
static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
{
switch (intr_mode) {
case 0:
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0470 Enable INTx interrupt mode.\n");
break;
case 1:
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0481 Enabled MSI interrupt mode.\n");
break;
case 2:
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0480 Enabled MSI-X interrupt mode.\n");
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0482 Illegal interrupt mode.\n");
break;
}
return;
}
/**
* lpfc_enable_pci_dev - Enable a generic PCI device.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to enable the PCI device that is common to all
* PCI devices.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_enable_pci_dev(struct lpfc_hba *phba)
{
struct pci_dev *pdev;
/* Obtain PCI device reference */
if (!phba->pcidev)
goto out_error;
else
pdev = phba->pcidev;
/* Enable PCI device */
if (pci_enable_device_mem(pdev))
goto out_error;
/* Request PCI resource for the device */
if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
goto out_disable_device;
/* Set up device as PCI master and save state for EEH */
pci_set_master(pdev);
pci_try_set_mwi(pdev);
pci_save_state(pdev);
/* PCIe EEH recovery on powerpc platforms needs fundamental reset */
if (pci_is_pcie(pdev))
pdev->needs_freset = 1;
return 0;
out_disable_device:
pci_disable_device(pdev);
out_error:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1401 Failed to enable pci device\n");
return -ENODEV;
}
/**
* lpfc_disable_pci_dev - Disable a generic PCI device.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to disable the PCI device that is common to all
* PCI devices.
**/
static void
lpfc_disable_pci_dev(struct lpfc_hba *phba)
{
struct pci_dev *pdev;
/* Obtain PCI device reference */
if (!phba->pcidev)
return;
else
pdev = phba->pcidev;
/* Release PCI resource and disable PCI device */
pci_release_mem_regions(pdev);
pci_disable_device(pdev);
return;
}
/**
* lpfc_reset_hba - Reset a hba
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to reset a hba device. It brings the HBA
* offline, performs a board restart, and then brings the board back
* online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
* on outstanding mailbox commands.
**/
void
lpfc_reset_hba(struct lpfc_hba *phba)
{
int rc = 0;
/* If resets are disabled then set error state and return. */
if (!phba->cfg_enable_hba_reset) {
phba->link_state = LPFC_HBA_ERROR;
return;
}
/* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
lpfc_offline_prep(phba, LPFC_MBX_WAIT);
} else {
if (test_bit(MBX_TMO_ERR, &phba->bit_flags)) {
/* Perform a PCI function reset to start from clean */
rc = lpfc_pci_function_reset(phba);
lpfc_els_flush_all_cmd(phba);
}
lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
lpfc_sli_flush_io_rings(phba);
}
lpfc_offline(phba);
clear_bit(MBX_TMO_ERR, &phba->bit_flags);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"8888 PCI function reset failed rc %x\n",
rc);
} else {
lpfc_sli_brdrestart(phba);
lpfc_online(phba);
lpfc_unblock_mgmt_io(phba);
}
}
/**
* lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
* @phba: pointer to lpfc hba data structure.
*
* This function enables the PCI SR-IOV virtual functions to a physical
* function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
* enable the number of virtual functions to the physical function. As
* not all devices support SR-IOV, the return code from the pci_enable_sriov()
* API call does not considered as an error condition for most of the device.
**/
uint16_t
lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
{
struct pci_dev *pdev = phba->pcidev;
uint16_t nr_virtfn;
int pos;
pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
if (pos == 0)
return 0;
pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
return nr_virtfn;
}
/**
* lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
* @phba: pointer to lpfc hba data structure.
* @nr_vfn: number of virtual functions to be enabled.
*
* This function enables the PCI SR-IOV virtual functions to a physical
* function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
* enable the number of virtual functions to the physical function. As
* not all devices support SR-IOV, the return code from the pci_enable_sriov()
* API call does not considered as an error condition for most of the device.
**/
int
lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
{
struct pci_dev *pdev = phba->pcidev;
uint16_t max_nr_vfn;
int rc;
max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
if (nr_vfn > max_nr_vfn) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3057 Requested vfs (%d) greater than "
"supported vfs (%d)", nr_vfn, max_nr_vfn);
return -EINVAL;
}
rc = pci_enable_sriov(pdev, nr_vfn);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"2806 Failed to enable sriov on this device "
"with vfn number nr_vf:%d, rc:%d\n",
nr_vfn, rc);
} else
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"2807 Successful enable sriov on this device "
"with vfn number nr_vf:%d\n", nr_vfn);
return rc;
}
static void
lpfc_unblock_requests_work(struct work_struct *work)
{
struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
unblock_request_work);
lpfc_unblock_requests(phba);
}
/**
* lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to set up the driver internal resources before the
* device specific resource setup to support the HBA device it attached to.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
/*
* Driver resources common to all SLI revisions
*/
atomic_set(&phba->fast_event_count, 0);
atomic_set(&phba->dbg_log_idx, 0);
atomic_set(&phba->dbg_log_cnt, 0);
atomic_set(&phba->dbg_log_dmping, 0);
spin_lock_init(&phba->hbalock);
/* Initialize port_list spinlock */
spin_lock_init(&phba->port_list_lock);
INIT_LIST_HEAD(&phba->port_list);
INIT_LIST_HEAD(&phba->work_list);
/* Initialize the wait queue head for the kernel thread */
init_waitqueue_head(&phba->work_waitq);
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1403 Protocols supported %s %s %s\n",
((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
"SCSI" : " "),
((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
"NVME" : " "),
(phba->nvmet_support ? "NVMET" : " "));
/* Initialize the IO buffer list used by driver for SLI3 SCSI */
spin_lock_init(&phba->scsi_buf_list_get_lock);
INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
spin_lock_init(&phba->scsi_buf_list_put_lock);
INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
/* Initialize the fabric iocb list */
INIT_LIST_HEAD(&phba->fabric_iocb_list);
/* Initialize list to save ELS buffers */
INIT_LIST_HEAD(&phba->elsbuf);
/* Initialize FCF connection rec list */
INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
/* Initialize OAS configuration list */
spin_lock_init(&phba->devicelock);
INIT_LIST_HEAD(&phba->luns);
/* MBOX heartbeat timer */
timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
/* Fabric block timer */
timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
/* EA polling mode timer */
timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
/* Heartbeat timer */
timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
lpfc_idle_stat_delay_work);
INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
return 0;
}
/**
* lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to set up the driver internal resources specific to
* support the SLI-3 HBA device it attached to.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
{
int rc, entry_sz;
/*
* Initialize timers used by driver
*/
/* FCP polling mode timer */
timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
/* Host attention work mask setup */
phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
/* Get all the module params for configuring this host */
lpfc_get_cfgparam(phba);
/* Set up phase-1 common device driver resources */
rc = lpfc_setup_driver_resource_phase1(phba);
if (rc)
return -ENODEV;
if (!phba->sli.sli3_ring)
phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
sizeof(struct lpfc_sli_ring),
GFP_KERNEL);
if (!phba->sli.sli3_ring)
return -ENOMEM;
/*
* Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
* used to create the sg_dma_buf_pool must be dynamically calculated.
*/
if (phba->sli_rev == LPFC_SLI_REV4)
entry_sz = sizeof(struct sli4_sge);
else
entry_sz = sizeof(struct ulp_bde64);
/* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
if (phba->cfg_enable_bg) {
/*
* The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
* the FCP rsp, and a BDE for each. Sice we have no control
* over how many protection data segments the SCSI Layer
* will hand us (ie: there could be one for every block
* in the IO), we just allocate enough BDEs to accomidate
* our max amount and we need to limit lpfc_sg_seg_cnt to
* minimize the risk of running out.
*/
phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp) +
(LPFC_MAX_SG_SEG_CNT * entry_sz);
if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
/* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
} else {
/*
* The scsi_buf for a regular I/O will hold the FCP cmnd,
* the FCP rsp, a BDE for each, and a BDE for up to
* cfg_sg_seg_cnt data segments.
*/
phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp) +
((phba->cfg_sg_seg_cnt + 2) * entry_sz);
/* Total BDEs in BPL for scsi_sg_list */
phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
"9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
phba->cfg_total_seg_cnt);
phba->max_vpi = LPFC_MAX_VPI;
/* This will be set to correct value after config_port mbox */
phba->max_vports = 0;
/*
* Initialize the SLI Layer to run with lpfc HBAs.
*/
lpfc_sli_setup(phba);
lpfc_sli_queue_init(phba);
/* Allocate device driver memory */
if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
return -ENOMEM;
phba->lpfc_sg_dma_buf_pool =
dma_pool_create("lpfc_sg_dma_buf_pool",
&phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
BPL_ALIGN_SZ, 0);
if (!phba->lpfc_sg_dma_buf_pool)
goto fail_free_mem;
phba->lpfc_cmd_rsp_buf_pool =
dma_pool_create("lpfc_cmd_rsp_buf_pool",
&phba->pcidev->dev,
sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp),
BPL_ALIGN_SZ, 0);
if (!phba->lpfc_cmd_rsp_buf_pool)
goto fail_free_dma_buf_pool;
/*
* Enable sr-iov virtual functions if supported and configured
* through the module parameter.
*/
if (phba->cfg_sriov_nr_virtfn > 0) {
rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
phba->cfg_sriov_nr_virtfn);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"2808 Requested number of SR-IOV "
"virtual functions (%d) is not "
"supported\n",
phba->cfg_sriov_nr_virtfn);
phba->cfg_sriov_nr_virtfn = 0;
}
}
return 0;
fail_free_dma_buf_pool:
dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
phba->lpfc_sg_dma_buf_pool = NULL;
fail_free_mem:
lpfc_mem_free(phba);
return -ENOMEM;
}
/**
* lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unset the driver internal resources set up
* specific for supporting the SLI-3 HBA device it attached to.
**/
static void
lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
{
/* Free device driver memory allocated */
lpfc_mem_free_all(phba);
return;
}
/**
* lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to set up the driver internal resources specific to
* support the SLI-4 HBA device it attached to.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
MAILBOX_t *mb;
int rc, i, max_buf_size;
int longs;
int extra;
uint64_t wwn;
u32 if_type;
u32 if_fam;
phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
phba->sli4_hba.curr_disp_cpu = 0;
/* Get all the module params for configuring this host */
lpfc_get_cfgparam(phba);
/* Set up phase-1 common device driver resources */
rc = lpfc_setup_driver_resource_phase1(phba);
if (rc)
return -ENODEV;
/* Before proceed, wait for POST done and device ready */
rc = lpfc_sli4_post_status_check(phba);
if (rc)
return -ENODEV;
/* Allocate all driver workqueues here */
/* The lpfc_wq workqueue for deferred irq use */
phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
if (!phba->wq)
return -ENOMEM;
/*
* Initialize timers used by driver
*/
timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
/* FCF rediscover timer */
timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
/* CMF congestion timer */
hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
phba->cmf_timer.function = lpfc_cmf_timer;
/* CMF 1 minute stats collection timer */
hrtimer_init(&phba->cmf_stats_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
phba->cmf_stats_timer.function = lpfc_cmf_stats_timer;
/*
* Control structure for handling external multi-buffer mailbox
* command pass-through.
*/
memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
sizeof(struct lpfc_mbox_ext_buf_ctx));
INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
phba->max_vpi = LPFC_MAX_VPI;
/* This will be set to correct value after the read_config mbox */
phba->max_vports = 0;
/* Program the default value of vlan_id and fc_map */
phba->valid_vlan = 0;
phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
/*
* For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
* we will associate a new ring, for each EQ/CQ/WQ tuple.
* The WQ create will allocate the ring.
*/
/* Initialize buffer queue management fields */
INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
/* for VMID idle timeout if VMID is enabled */
if (lpfc_is_vmid_enabled(phba))
timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
/*
* Initialize the SLI Layer to run with lpfc SLI4 HBAs.
*/
/* Initialize the Abort buffer list used by driver */
spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
/* Initialize the Abort nvme buffer list used by driver */
spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
spin_lock_init(&phba->sli4_hba.t_active_list_lock);
INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
}
/* This abort list used by worker thread */
spin_lock_init(&phba->sli4_hba.sgl_list_lock);
spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
spin_lock_init(&phba->sli4_hba.asynce_list_lock);
spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
/*
* Initialize driver internal slow-path work queues
*/
/* Driver internel slow-path CQ Event pool */
INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
/* Response IOCB work queue list */
INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
/* Asynchronous event CQ Event work queue list */
INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
/* Slow-path XRI aborted CQ Event work queue list */
INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
/* Receive queue CQ Event work queue list */
INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
/* Initialize extent block lists. */
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
/* Initialize mboxq lists. If the early init routines fail
* these lists need to be correctly initialized.
*/
INIT_LIST_HEAD(&phba->sli.mboxq);
INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
/* initialize optic_state to 0xFF */
phba->sli4_hba.lnk_info.optic_state = 0xff;
/* Allocate device driver memory */
rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
if (rc)
goto out_destroy_workqueue;
/* IF Type 2 ports get initialized now. */
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
LPFC_SLI_INTF_IF_TYPE_2) {
rc = lpfc_pci_function_reset(phba);
if (unlikely(rc)) {
rc = -ENODEV;
goto out_free_mem;
}
phba->temp_sensor_support = 1;
}
/* Create the bootstrap mailbox command */
rc = lpfc_create_bootstrap_mbox(phba);
if (unlikely(rc))
goto out_free_mem;
/* Set up the host's endian order with the device. */
rc = lpfc_setup_endian_order(phba);
if (unlikely(rc))
goto out_free_bsmbx;
/* Set up the hba's configuration parameters. */
rc = lpfc_sli4_read_config(phba);
if (unlikely(rc))
goto out_free_bsmbx;
if (phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) {
/* Right now the link is down, if FA-PWWN is configured the
* firmware will try FLOGI before the driver gets a link up.
* If it fails, the driver should get a MISCONFIGURED async
* event which will clear this flag. The only notification
* the driver gets is if it fails, if it succeeds there is no
* notification given. Assume success.
*/
phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
}
rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
if (unlikely(rc))
goto out_free_bsmbx;
/* IF Type 0 ports get initialized now. */
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_0) {
rc = lpfc_pci_function_reset(phba);
if (unlikely(rc))
goto out_free_bsmbx;
}
mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!mboxq) {
rc = -ENOMEM;
goto out_free_bsmbx;
}
/* Check for NVMET being configured */
phba->nvmet_support = 0;
if (lpfc_enable_nvmet_cnt) {
/* First get WWN of HBA instance */
lpfc_read_nv(phba, mboxq);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"6016 Mailbox failed , mbxCmd x%x "
"READ_NV, mbxStatus x%x\n",
bf_get(lpfc_mqe_command, &mboxq->u.mqe),
bf_get(lpfc_mqe_status, &mboxq->u.mqe));
mempool_free(mboxq, phba->mbox_mem_pool);
rc = -EIO;
goto out_free_bsmbx;
}
mb = &mboxq->u.mb;
memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
sizeof(uint64_t));
wwn = cpu_to_be64(wwn);
phba->sli4_hba.wwnn.u.name = wwn;
memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
sizeof(uint64_t));
/* wwn is WWPN of HBA instance */
wwn = cpu_to_be64(wwn);
phba->sli4_hba.wwpn.u.name = wwn;
/* Check to see if it matches any module parameter */
for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
if (wwn == lpfc_enable_nvmet[i]) {
#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
if (lpfc_nvmet_mem_alloc(phba))
break;
phba->nvmet_support = 1; /* a match */
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"6017 NVME Target %016llx\n",
wwn);
#else
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"6021 Can't enable NVME Target."
" NVME_TARGET_FC infrastructure"
" is not in kernel\n");
#endif
/* Not supported for NVMET */
phba->cfg_xri_rebalancing = 0;
if (phba->irq_chann_mode == NHT_MODE) {
phba->cfg_irq_chann =
phba->sli4_hba.num_present_cpu;
phba->cfg_hdw_queue =
phba->sli4_hba.num_present_cpu;
phba->irq_chann_mode = NORMAL_MODE;
}
break;
}
}
}
lpfc_nvme_mod_param_dep(phba);
/*
* Get sli4 parameters that override parameters from Port capabilities.
* If this call fails, it isn't critical unless the SLI4 parameters come
* back in conflict.
*/
rc = lpfc_get_sli4_parameters(phba, mboxq);
if (rc) {
if_type = bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf);
if_fam = bf_get(lpfc_sli_intf_sli_family,
&phba->sli4_hba.sli_intf);
if (phba->sli4_hba.extents_in_use &&
phba->sli4_hba.rpi_hdrs_in_use) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2999 Unsupported SLI4 Parameters "
"Extents and RPI headers enabled.\n");
if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
if_fam == LPFC_SLI_INTF_FAMILY_BE2) {
mempool_free(mboxq, phba->mbox_mem_pool);
rc = -EIO;
goto out_free_bsmbx;
}
}
if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
mempool_free(mboxq, phba->mbox_mem_pool);
rc = -EIO;
goto out_free_bsmbx;
}
}
/*
* 1 for cmd, 1 for rsp, NVME adds an extra one
* for boundary conditions in its max_sgl_segment template.
*/
extra = 2;
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
extra++;
/*
* It doesn't matter what family our adapter is in, we are
* limited to 2 Pages, 512 SGEs, for our SGL.
* There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
*/
max_buf_size = (2 * SLI4_PAGE_SIZE);
/*
* Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
* used to create the sg_dma_buf_pool must be calculated.
*/
if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
/* Both cfg_enable_bg and cfg_external_dif code paths */
/*
* The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
* the FCP rsp, and a SGE. Sice we have no control
* over how many protection segments the SCSI Layer
* will hand us (ie: there could be one for every block
* in the IO), just allocate enough SGEs to accomidate
* our max amount and we need to limit lpfc_sg_seg_cnt
* to minimize the risk of running out.
*/
phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp) + max_buf_size;
/* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
/*
* If supporting DIF, reduce the seg count for scsi to
* allow room for the DIF sges.
*/
if (phba->cfg_enable_bg &&
phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
else
phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
} else {
/*
* The scsi_buf for a regular I/O holds the FCP cmnd,
* the FCP rsp, a SGE for each, and a SGE for up to
* cfg_sg_seg_cnt data segments.
*/
phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp) +
((phba->cfg_sg_seg_cnt + extra) *
sizeof(struct sli4_sge));
/* Total SGEs for scsi_sg_list */
phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
/*
* NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
* need to post 1 page for the SGL.
*/
}
if (phba->cfg_xpsgl && !phba->nvmet_support)
phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
else if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
else
phba->cfg_sg_dma_buf_size =
SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
phba->border_sge_num = phba->cfg_sg_dma_buf_size /
sizeof(struct sli4_sge);
/* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
"6300 Reducing NVME sg segment "
"cnt to %d\n",
LPFC_MAX_NVME_SEG_CNT);
phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
} else
phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
"9087 sg_seg_cnt:%d dmabuf_size:%d "
"total:%d scsi:%d nvme:%d\n",
phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt,
phba->cfg_nvme_seg_cnt);
if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
i = phba->cfg_sg_dma_buf_size;
else
i = SLI4_PAGE_SIZE;
phba->lpfc_sg_dma_buf_pool =
dma_pool_create("lpfc_sg_dma_buf_pool",
&phba->pcidev->dev,
phba->cfg_sg_dma_buf_size,
i, 0);
if (!phba->lpfc_sg_dma_buf_pool) {
rc = -ENOMEM;
goto out_free_bsmbx;
}
phba->lpfc_cmd_rsp_buf_pool =
dma_pool_create("lpfc_cmd_rsp_buf_pool",
&phba->pcidev->dev,
sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp),
i, 0);
if (!phba->lpfc_cmd_rsp_buf_pool) {
rc = -ENOMEM;
goto out_free_sg_dma_buf;
}
mempool_free(mboxq, phba->mbox_mem_pool);
/* Verify OAS is supported */
lpfc_sli4_oas_verify(phba);
/* Verify RAS support on adapter */
lpfc_sli4_ras_init(phba);
/* Verify all the SLI4 queues */
rc = lpfc_sli4_queue_verify(phba);
if (rc)
goto out_free_cmd_rsp_buf;
/* Create driver internal CQE event pool */
rc = lpfc_sli4_cq_event_pool_create(phba);
if (rc)
goto out_free_cmd_rsp_buf;
/* Initialize sgl lists per host */
lpfc_init_sgl_list(phba);
/* Allocate and initialize active sgl array */
rc = lpfc_init_active_sgl_array(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1430 Failed to initialize sgl list.\n");
goto out_destroy_cq_event_pool;
}
rc = lpfc_sli4_init_rpi_hdrs(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1432 Failed to initialize rpi headers.\n");
goto out_free_active_sgl;
}
/* Allocate eligible FCF bmask memory for FCF roundrobin failover */
longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
GFP_KERNEL);
if (!phba->fcf.fcf_rr_bmask) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2759 Failed allocate memory for FCF round "
"robin failover bmask\n");
rc = -ENOMEM;
goto out_remove_rpi_hdrs;
}
phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
sizeof(struct lpfc_hba_eq_hdl),
GFP_KERNEL);
if (!phba->sli4_hba.hba_eq_hdl) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2572 Failed allocate memory for "
"fast-path per-EQ handle array\n");
rc = -ENOMEM;
goto out_free_fcf_rr_bmask;
}
phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
sizeof(struct lpfc_vector_map_info),
GFP_KERNEL);
if (!phba->sli4_hba.cpu_map) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3327 Failed allocate memory for msi-x "
"interrupt vector mapping\n");
rc = -ENOMEM;
goto out_free_hba_eq_hdl;
}
phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
if (!phba->sli4_hba.eq_info) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3321 Failed allocation for per_cpu stats\n");
rc = -ENOMEM;
goto out_free_hba_cpu_map;
}
phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
sizeof(*phba->sli4_hba.idle_stat),
GFP_KERNEL);
if (!phba->sli4_hba.idle_stat) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3390 Failed allocation for idle_stat\n");
rc = -ENOMEM;
goto out_free_hba_eq_info;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
if (!phba->sli4_hba.c_stat) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3332 Failed allocating per cpu hdwq stats\n");
rc = -ENOMEM;
goto out_free_hba_idle_stat;
}
#endif
phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
if (!phba->cmf_stat) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3331 Failed allocating per cpu cgn stats\n");
rc = -ENOMEM;
goto out_free_hba_hdwq_info;
}
/*
* Enable sr-iov virtual functions if supported and configured
* through the module parameter.
*/
if (phba->cfg_sriov_nr_virtfn > 0) {
rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
phba->cfg_sriov_nr_virtfn);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"3020 Requested number of SR-IOV "
"virtual functions (%d) is not "
"supported\n",
phba->cfg_sriov_nr_virtfn);
phba->cfg_sriov_nr_virtfn = 0;
}
}
return 0;
out_free_hba_hdwq_info:
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
free_percpu(phba->sli4_hba.c_stat);
out_free_hba_idle_stat:
#endif
kfree(phba->sli4_hba.idle_stat);
out_free_hba_eq_info:
free_percpu(phba->sli4_hba.eq_info);
out_free_hba_cpu_map:
kfree(phba->sli4_hba.cpu_map);
out_free_hba_eq_hdl:
kfree(phba->sli4_hba.hba_eq_hdl);
out_free_fcf_rr_bmask:
kfree(phba->fcf.fcf_rr_bmask);
out_remove_rpi_hdrs:
lpfc_sli4_remove_rpi_hdrs(phba);
out_free_active_sgl:
lpfc_free_active_sgl(phba);
out_destroy_cq_event_pool:
lpfc_sli4_cq_event_pool_destroy(phba);
out_free_cmd_rsp_buf:
dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
phba->lpfc_cmd_rsp_buf_pool = NULL;
out_free_sg_dma_buf:
dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
phba->lpfc_sg_dma_buf_pool = NULL;
out_free_bsmbx:
lpfc_destroy_bootstrap_mbox(phba);
out_free_mem:
lpfc_mem_free(phba);
out_destroy_workqueue:
destroy_workqueue(phba->wq);
phba->wq = NULL;
return rc;
}
/**
* lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unset the driver internal resources set up
* specific for supporting the SLI-4 HBA device it attached to.
**/
static void
lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
{
struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
free_percpu(phba->sli4_hba.eq_info);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
free_percpu(phba->sli4_hba.c_stat);
#endif
free_percpu(phba->cmf_stat);
kfree(phba->sli4_hba.idle_stat);
/* Free memory allocated for msi-x interrupt vector to CPU mapping */
kfree(phba->sli4_hba.cpu_map);
phba->sli4_hba.num_possible_cpu = 0;
phba->sli4_hba.num_present_cpu = 0;
phba->sli4_hba.curr_disp_cpu = 0;
cpumask_clear(&phba->sli4_hba.irq_aff_mask);
/* Free memory allocated for fast-path work queue handles */
kfree(phba->sli4_hba.hba_eq_hdl);
/* Free the allocated rpi headers. */
lpfc_sli4_remove_rpi_hdrs(phba);
lpfc_sli4_remove_rpis(phba);
/* Free eligible FCF index bmask */
kfree(phba->fcf.fcf_rr_bmask);
/* Free the ELS sgl list */
lpfc_free_active_sgl(phba);
lpfc_free_els_sgl_list(phba);
lpfc_free_nvmet_sgl_list(phba);
/* Free the completion queue EQ event pool */
lpfc_sli4_cq_event_release_all(phba);
lpfc_sli4_cq_event_pool_destroy(phba);
/* Release resource identifiers. */
lpfc_sli4_dealloc_resource_identifiers(phba);
/* Free the bsmbx region. */
lpfc_destroy_bootstrap_mbox(phba);
/* Free the SLI Layer memory with SLI4 HBAs */
lpfc_mem_free_all(phba);
/* Free the current connect table */
list_for_each_entry_safe(conn_entry, next_conn_entry,
&phba->fcf_conn_rec_list, list) {
list_del_init(&conn_entry->list);
kfree(conn_entry);
}
return;
}
/**
* lpfc_init_api_table_setup - Set up init api function jump table
* @phba: The hba struct for which this call is being executed.
* @dev_grp: The HBA PCI-Device group number.
*
* This routine sets up the device INIT interface API function jump table
* in @phba struct.
*
* Returns: 0 - success, -ENODEV - failure.
**/
int
lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
{
phba->lpfc_hba_init_link = lpfc_hba_init_link;
phba->lpfc_hba_down_link = lpfc_hba_down_link;
phba->lpfc_selective_reset = lpfc_selective_reset;
switch (dev_grp) {
case LPFC_PCI_DEV_LP:
phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
phba->lpfc_stop_port = lpfc_stop_port_s3;
break;
case LPFC_PCI_DEV_OC:
phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
phba->lpfc_stop_port = lpfc_stop_port_s4;
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1431 Invalid HBA PCI-device group: 0x%x\n",
dev_grp);
return -ENODEV;
}
return 0;
}
/**
* lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to set up the driver internal resources after the
* device specific resource setup to support the HBA device it attached to.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
{
int error;
/* Startup the kernel thread for this host adapter. */
phba->worker_thread = kthread_run(lpfc_do_work, phba,
"lpfc_worker_%d", phba->brd_no);
if (IS_ERR(phba->worker_thread)) {
error = PTR_ERR(phba->worker_thread);
return error;
}
return 0;
}
/**
* lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unset the driver internal resources set up after
* the device specific resource setup for supporting the HBA device it
* attached to.
**/
static void
lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
{
if (phba->wq) {
destroy_workqueue(phba->wq);
phba->wq = NULL;
}
/* Stop kernel worker thread */
if (phba->worker_thread)
kthread_stop(phba->worker_thread);
}
/**
* lpfc_free_iocb_list - Free iocb list.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to free the driver's IOCB list and memory.
**/
void
lpfc_free_iocb_list(struct lpfc_hba *phba)
{
struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(iocbq_entry, iocbq_next,
&phba->lpfc_iocb_list, list) {
list_del(&iocbq_entry->list);
kfree(iocbq_entry);
phba->total_iocbq_bufs--;
}
spin_unlock_irq(&phba->hbalock);
return;
}
/**
* lpfc_init_iocb_list - Allocate and initialize iocb list.
* @phba: pointer to lpfc hba data structure.
* @iocb_count: number of requested iocbs
*
* This routine is invoked to allocate and initizlize the driver's IOCB
* list and set up the IOCB tag array accordingly.
*
* Return codes
* 0 - successful
* other values - error
**/
int
lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
{
struct lpfc_iocbq *iocbq_entry = NULL;
uint16_t iotag;
int i;
/* Initialize and populate the iocb list per host. */
INIT_LIST_HEAD(&phba->lpfc_iocb_list);
for (i = 0; i < iocb_count; i++) {
iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
if (iocbq_entry == NULL) {
printk(KERN_ERR "%s: only allocated %d iocbs of "
"expected %d count. Unloading driver.\n",
__func__, i, iocb_count);
goto out_free_iocbq;
}
iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
if (iotag == 0) {
kfree(iocbq_entry);
printk(KERN_ERR "%s: failed to allocate IOTAG. "
"Unloading driver.\n", __func__);
goto out_free_iocbq;
}
iocbq_entry->sli4_lxritag = NO_XRI;
iocbq_entry->sli4_xritag = NO_XRI;
spin_lock_irq(&phba->hbalock);
list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
phba->total_iocbq_bufs++;
spin_unlock_irq(&phba->hbalock);
}
return 0;
out_free_iocbq:
lpfc_free_iocb_list(phba);
return -ENOMEM;
}
/**
* lpfc_free_sgl_list - Free a given sgl list.
* @phba: pointer to lpfc hba data structure.
* @sglq_list: pointer to the head of sgl list.
*
* This routine is invoked to free a give sgl list and memory.
**/
void
lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
{
struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
list_del(&sglq_entry->list);
lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
kfree(sglq_entry);
}
}
/**
* lpfc_free_els_sgl_list - Free els sgl list.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to free the driver's els sgl list and memory.
**/
static void
lpfc_free_els_sgl_list(struct lpfc_hba *phba)
{
LIST_HEAD(sglq_list);
/* Retrieve all els sgls from driver list */
spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
/* Now free the sgl list */
lpfc_free_sgl_list(phba, &sglq_list);
}
/**
* lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to free the driver's nvmet sgl list and memory.
**/
static void
lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
{
struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
LIST_HEAD(sglq_list);
/* Retrieve all nvmet sgls from driver list */
spin_lock_irq(&phba->hbalock);
spin_lock(&phba->sli4_hba.sgl_list_lock);
list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
spin_unlock(&phba->sli4_hba.sgl_list_lock);
spin_unlock_irq(&phba->hbalock);
/* Now free the sgl list */
list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
list_del(&sglq_entry->list);
lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
kfree(sglq_entry);
}
/* Update the nvmet_xri_cnt to reflect no current sgls.
* The next initialization cycle sets the count and allocates
* the sgls over again.
*/
phba->sli4_hba.nvmet_xri_cnt = 0;
}
/**
* lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to allocate the driver's active sgl memory.
* This array will hold the sglq_entry's for active IOs.
**/
static int
lpfc_init_active_sgl_array(struct lpfc_hba *phba)
{
int size;
size = sizeof(struct lpfc_sglq *);
size *= phba->sli4_hba.max_cfg_param.max_xri;
phba->sli4_hba.lpfc_sglq_active_list =
kzalloc(size, GFP_KERNEL);
if (!phba->sli4_hba.lpfc_sglq_active_list)
return -ENOMEM;
return 0;
}
/**
* lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to walk through the array of active sglq entries
* and free all of the resources.
* This is just a place holder for now.
**/
static void
lpfc_free_active_sgl(struct lpfc_hba *phba)
{
kfree(phba->sli4_hba.lpfc_sglq_active_list);
}
/**
* lpfc_init_sgl_list - Allocate and initialize sgl list.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to allocate and initizlize the driver's sgl
* list and set up the sgl xritag tag array accordingly.
*
**/
static void
lpfc_init_sgl_list(struct lpfc_hba *phba)
{
/* Initialize and populate the sglq list per host/VF. */
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
/* els xri-sgl book keeping */
phba->sli4_hba.els_xri_cnt = 0;
/* nvme xri-buffer book keeping */
phba->sli4_hba.io_xri_cnt = 0;
}
/**
* lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to post rpi header templates to the
* port for those SLI4 ports that do not support extents. This routine
* posts a PAGE_SIZE memory region to the port to hold up to
* PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
* and should be called only when interrupts are disabled.
*
* Return codes
* 0 - successful
* -ERROR - otherwise.
**/
int
lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
{
int rc = 0;
struct lpfc_rpi_hdr *rpi_hdr;
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
if (!phba->sli4_hba.rpi_hdrs_in_use)
return rc;
if (phba->sli4_hba.extents_in_use)
return -EIO;
rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
if (!rpi_hdr) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0391 Error during rpi post operation\n");
lpfc_sli4_remove_rpis(phba);
rc = -ENODEV;
}
return rc;
}
/**
* lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to allocate a single 4KB memory region to
* support rpis and stores them in the phba. This single region
* provides support for up to 64 rpis. The region is used globally
* by the device.
*
* Returns:
* A valid rpi hdr on success.
* A NULL pointer on any failure.
**/
struct lpfc_rpi_hdr *
lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
{
uint16_t rpi_limit, curr_rpi_range;
struct lpfc_dmabuf *dmabuf;
struct lpfc_rpi_hdr *rpi_hdr;
/*
* If the SLI4 port supports extents, posting the rpi header isn't
* required. Set the expected maximum count and let the actual value
* get set when extents are fully allocated.
*/
if (!phba->sli4_hba.rpi_hdrs_in_use)
return NULL;
if (phba->sli4_hba.extents_in_use)
return NULL;
/* The limit on the logical index is just the max_rpi count. */
rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
spin_lock_irq(&phba->hbalock);
/*
* Establish the starting RPI in this header block. The starting
* rpi is normalized to a zero base because the physical rpi is
* port based.
*/
curr_rpi_range = phba->sli4_hba.next_rpi;
spin_unlock_irq(&phba->hbalock);
/* Reached full RPI range */
if (curr_rpi_range == rpi_limit)
return NULL;
/*
* First allocate the protocol header region for the port. The
* port expects a 4KB DMA-mapped memory region that is 4K aligned.
*/
dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!dmabuf)
return NULL;
dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
LPFC_HDR_TEMPLATE_SIZE,
&dmabuf->phys, GFP_KERNEL);
if (!dmabuf->virt) {
rpi_hdr = NULL;
goto err_free_dmabuf;
}
if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
rpi_hdr = NULL;
goto err_free_coherent;
}
/* Save the rpi header data for cleanup later. */
rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
if (!rpi_hdr)
goto err_free_coherent;
rpi_hdr->dmabuf = dmabuf;
rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
rpi_hdr->page_count = 1;
spin_lock_irq(&phba->hbalock);
/* The rpi_hdr stores the logical index only. */
rpi_hdr->start_rpi = curr_rpi_range;
rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
spin_unlock_irq(&phba->hbalock);
return rpi_hdr;
err_free_coherent:
dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
dmabuf->virt, dmabuf->phys);
err_free_dmabuf:
kfree(dmabuf);
return NULL;
}
/**
* lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to remove all memory resources allocated
* to support rpis for SLI4 ports not supporting extents. This routine
* presumes the caller has released all rpis consumed by fabric or port
* logins and is prepared to have the header pages removed.
**/
void
lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
{
struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
if (!phba->sli4_hba.rpi_hdrs_in_use)
goto exit;
list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
&phba->sli4_hba.lpfc_rpi_hdr_list, list) {
list_del(&rpi_hdr->list);
dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
kfree(rpi_hdr->dmabuf);
kfree(rpi_hdr);
}
exit:
/* There are no rpis available to the port now. */
phba->sli4_hba.next_rpi = 0;
}
/**
* lpfc_hba_alloc - Allocate driver hba data structure for a device.
* @pdev: pointer to pci device data structure.
*
* This routine is invoked to allocate the driver hba data structure for an
* HBA device. If the allocation is successful, the phba reference to the
* PCI device data structure is set.
*
* Return codes
* pointer to @phba - successful
* NULL - error
**/
static struct lpfc_hba *
lpfc_hba_alloc(struct pci_dev *pdev)
{
struct lpfc_hba *phba;
/* Allocate memory for HBA structure */
phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
if (!phba) {
dev_err(&pdev->dev, "failed to allocate hba struct\n");
return NULL;
}
/* Set reference to PCI device in HBA structure */
phba->pcidev = pdev;
/* Assign an unused board number */
phba->brd_no = lpfc_get_instance();
if (phba->brd_no < 0) {
kfree(phba);
return NULL;
}
phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
spin_lock_init(&phba->ct_ev_lock);
INIT_LIST_HEAD(&phba->ct_ev_waiters);
return phba;
}
/**
* lpfc_hba_free - Free driver hba data structure with a device.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to free the driver hba data structure with an
* HBA device.
**/
static void
lpfc_hba_free(struct lpfc_hba *phba)
{
if (phba->sli_rev == LPFC_SLI_REV4)
kfree(phba->sli4_hba.hdwq);
/* Release the driver assigned board number */
idr_remove(&lpfc_hba_index, phba->brd_no);
/* Free memory allocated with sli3 rings */
kfree(phba->sli.sli3_ring);
phba->sli.sli3_ring = NULL;
kfree(phba);
return;
}
/**
* lpfc_setup_fdmi_mask - Setup initial FDMI mask for HBA and Port attributes
* @vport: pointer to lpfc vport data structure.
*
* This routine is will setup initial FDMI attribute masks for
* FDMI2 or SmartSAN depending on module parameters. The driver will attempt
* to get these attributes first before falling back, the attribute
* fallback hierarchy is SmartSAN -> FDMI2 -> FMDI1
**/
void
lpfc_setup_fdmi_mask(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
vport->load_flag |= FC_ALLOW_FDMI;
if (phba->cfg_enable_SmartSAN ||
phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT) {
/* Setup appropriate attribute masks */
vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
if (phba->cfg_enable_SmartSAN)
vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
else
vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
}
lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
"6077 Setup FDMI mask: hba x%x port x%x\n",
vport->fdmi_hba_mask, vport->fdmi_port_mask);
}
/**
* lpfc_create_shost - Create hba physical port with associated scsi host.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to create HBA physical port and associate a SCSI
* host with it.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_create_shost(struct lpfc_hba *phba)
{
struct lpfc_vport *vport;
struct Scsi_Host *shost;
/* Initialize HBA FC structure */
phba->fc_edtov = FF_DEF_EDTOV;
phba->fc_ratov = FF_DEF_RATOV;
phba->fc_altov = FF_DEF_ALTOV;
phba->fc_arbtov = FF_DEF_ARBTOV;
atomic_set(&phba->sdev_cnt, 0);
vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
if (!vport)
return -ENODEV;
shost = lpfc_shost_from_vport(vport);
phba->pport = vport;
if (phba->nvmet_support) {
/* Only 1 vport (pport) will support NVME target */
phba->targetport = NULL;
phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
"6076 NVME Target Found\n");
}
lpfc_debugfs_initialize(vport);
/* Put reference to SCSI host to driver's device private data */
pci_set_drvdata(phba->pcidev, shost);
lpfc_setup_fdmi_mask(vport);
/*
* At this point we are fully registered with PSA. In addition,
* any initial discovery should be completed.
*/
return 0;
}
/**
* lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to destroy HBA physical port and the associated
* SCSI host.
**/
static void
lpfc_destroy_shost(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
/* Destroy physical port that associated with the SCSI host */
destroy_port(vport);
return;
}
/**
* lpfc_setup_bg - Setup Block guard structures and debug areas.
* @phba: pointer to lpfc hba data structure.
* @shost: the shost to be used to detect Block guard settings.
*
* This routine sets up the local Block guard protocol settings for @shost.
* This routine also allocates memory for debugging bg buffers.
**/
static void
lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
{
uint32_t old_mask;
uint32_t old_guard;
if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1478 Registering BlockGuard with the "
"SCSI layer\n");
old_mask = phba->cfg_prot_mask;
old_guard = phba->cfg_prot_guard;
/* Only allow supported values */
phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
SHOST_DIX_TYPE0_PROTECTION |
SHOST_DIX_TYPE1_PROTECTION);
phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
SHOST_DIX_GUARD_CRC);
/* DIF Type 1 protection for profiles AST1/C1 is end to end */
if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
if ((old_mask != phba->cfg_prot_mask) ||
(old_guard != phba->cfg_prot_guard))
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1475 Registering BlockGuard with the "
"SCSI layer: mask %d guard %d\n",
phba->cfg_prot_mask,
phba->cfg_prot_guard);
scsi_host_set_prot(shost, phba->cfg_prot_mask);
scsi_host_set_guard(shost, phba->cfg_prot_guard);
} else
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1479 Not Registering BlockGuard with the SCSI "
"layer, Bad protection parameters: %d %d\n",
old_mask, old_guard);
}
}
/**
* lpfc_post_init_setup - Perform necessary device post initialization setup.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to perform all the necessary post initialization
* setup for the device.
**/
static void
lpfc_post_init_setup(struct lpfc_hba *phba)
{
struct Scsi_Host *shost;
struct lpfc_adapter_event_header adapter_event;
/* Get the default values for Model Name and Description */
lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
/*
* hba setup may have changed the hba_queue_depth so we need to
* adjust the value of can_queue.
*/
shost = pci_get_drvdata(phba->pcidev);
shost->can_queue = phba->cfg_hba_queue_depth - 10;
lpfc_host_attrib_init(shost);
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
spin_lock_irq(shost->host_lock);
lpfc_poll_start_timer(phba);
spin_unlock_irq(shost->host_lock);
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0428 Perform SCSI scan\n");
/* Send board arrival event to upper layer */
adapter_event.event_type = FC_REG_ADAPTER_EVENT;
adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(adapter_event),
(char *) &adapter_event,
LPFC_NL_VENDOR_ID);
return;
}
/**
* lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to set up the PCI device memory space for device
* with SLI-3 interface spec.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
{
struct pci_dev *pdev = phba->pcidev;
unsigned long bar0map_len, bar2map_len;
int i, hbq_count;
void *ptr;
int error;
if (!pdev)
return -ENODEV;
/* Set the device DMA mask size */
error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (error)
error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (error)
return error;
error = -ENODEV;
/* Get the bus address of Bar0 and Bar2 and the number of bytes
* required by each mapping.
*/
phba->pci_bar0_map = pci_resource_start(pdev, 0);
bar0map_len = pci_resource_len(pdev, 0);
phba->pci_bar2_map = pci_resource_start(pdev, 2);
bar2map_len = pci_resource_len(pdev, 2);
/* Map HBA SLIM to a kernel virtual address. */
phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
if (!phba->slim_memmap_p) {
dev_printk(KERN_ERR, &pdev->dev,
"ioremap failed for SLIM memory.\n");
goto out;
}
/* Map HBA Control Registers to a kernel virtual address. */
phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
if (!phba->ctrl_regs_memmap_p) {
dev_printk(KERN_ERR, &pdev->dev,
"ioremap failed for HBA control registers.\n");
goto out_iounmap_slim;
}
/* Allocate memory for SLI-2 structures */
phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
&phba->slim2p.phys, GFP_KERNEL);
if (!phba->slim2p.virt)
goto out_iounmap;
phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
phba->mbox_ext = (phba->slim2p.virt +
offsetof(struct lpfc_sli2_slim, mbx_ext_words));
phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
phba->IOCBs = (phba->slim2p.virt +
offsetof(struct lpfc_sli2_slim, IOCBs));
phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
lpfc_sli_hbq_size(),
&phba->hbqslimp.phys,
GFP_KERNEL);
if (!phba->hbqslimp.virt)
goto out_free_slim;
hbq_count = lpfc_sli_hbq_count();
ptr = phba->hbqslimp.virt;
for (i = 0; i < hbq_count; ++i) {
phba->hbqs[i].hbq_virt = ptr;
INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
ptr += (lpfc_hbq_defs[i]->entry_count *
sizeof(struct lpfc_hbq_entry));
}
phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
phba->MBslimaddr = phba->slim_memmap_p;
phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
return 0;
out_free_slim:
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
phba->slim2p.virt, phba->slim2p.phys);
out_iounmap:
iounmap(phba->ctrl_regs_memmap_p);
out_iounmap_slim:
iounmap(phba->slim_memmap_p);
out:
return error;
}
/**
* lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unset the PCI device memory space for device
* with SLI-3 interface spec.
**/
static void
lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
{
struct pci_dev *pdev;
/* Obtain PCI device reference */
if (!phba->pcidev)
return;
else
pdev = phba->pcidev;
/* Free coherent DMA memory allocated */
dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
phba->hbqslimp.virt, phba->hbqslimp.phys);
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
phba->slim2p.virt, phba->slim2p.phys);
/* I/O memory unmap */
iounmap(phba->ctrl_regs_memmap_p);
iounmap(phba->slim_memmap_p);
return;
}
/**
* lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to wait for SLI4 device Power On Self Test (POST)
* done and check status.
*
* Return 0 if successful, otherwise -ENODEV.
**/
int
lpfc_sli4_post_status_check(struct lpfc_hba *phba)
{
struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
struct lpfc_register reg_data;
int i, port_error = 0;
uint32_t if_type;
memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
memset(®_data, 0, sizeof(reg_data));
if (!phba->sli4_hba.PSMPHRregaddr)
return -ENODEV;
/* Wait up to 30 seconds for the SLI Port POST done and ready */
for (i = 0; i < 3000; i++) {
if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
&portsmphr_reg.word0) ||
(bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
/* Port has a fatal POST error, break out */
port_error = -ENODEV;
break;
}
if (LPFC_POST_STAGE_PORT_READY ==
bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
break;
msleep(10);
}
/*
* If there was a port error during POST, then don't proceed with
* other register reads as the data may not be valid. Just exit.
*/
if (port_error) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1408 Port Failed POST - portsmphr=0x%x, "
"perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
"scr2=x%x, hscratch=x%x, pstatus=x%x\n",
portsmphr_reg.word0,
bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2534 Device Info: SLIFamily=0x%x, "
"SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
"SLIHint_2=0x%x, FT=0x%x\n",
bf_get(lpfc_sli_intf_sli_family,
&phba->sli4_hba.sli_intf),
bf_get(lpfc_sli_intf_slirev,
&phba->sli4_hba.sli_intf),
bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf),
bf_get(lpfc_sli_intf_sli_hint1,
&phba->sli4_hba.sli_intf),
bf_get(lpfc_sli_intf_sli_hint2,
&phba->sli4_hba.sli_intf),
bf_get(lpfc_sli_intf_func_type,
&phba->sli4_hba.sli_intf));
/*
* Check for other Port errors during the initialization
* process. Fail the load if the port did not come up
* correctly.
*/
if_type = bf_get(lpfc_sli_intf_if_type,
&phba->sli4_hba.sli_intf);
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
phba->sli4_hba.ue_mask_lo =
readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
phba->sli4_hba.ue_mask_hi =
readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
uerrlo_reg.word0 =
readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
uerrhi_reg.word0 =
readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
(~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"1422 Unrecoverable Error "
"Detected during POST "
"uerr_lo_reg=0x%x, "
"uerr_hi_reg=0x%x, "
"ue_mask_lo_reg=0x%x, "
"ue_mask_hi_reg=0x%x\n",
uerrlo_reg.word0,
uerrhi_reg.word0,
phba->sli4_hba.ue_mask_lo,
phba->sli4_hba.ue_mask_hi);
port_error = -ENODEV;
}
break;
case LPFC_SLI_INTF_IF_TYPE_2:
case LPFC_SLI_INTF_IF_TYPE_6:
/* Final checks. The port status should be clean. */
if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
®_data.word0) ||
lpfc_sli4_unrecoverable_port(®_data)) {
phba->work_status[0] =
readl(phba->sli4_hba.u.if_type2.
ERR1regaddr);
phba->work_status[1] =
readl(phba->sli4_hba.u.if_type2.
ERR2regaddr);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2888 Unrecoverable port error "
"following POST: port status reg "
"0x%x, port_smphr reg 0x%x, "
"error 1=0x%x, error 2=0x%x\n",
reg_data.word0,
portsmphr_reg.word0,
phba->work_status[0],
phba->work_status[1]);
port_error = -ENODEV;
break;
}
if (lpfc_pldv_detect &&
bf_get(lpfc_sli_intf_sli_family,
&phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_FAMILY_G6)
pci_write_config_byte(phba->pcidev,
LPFC_SLI_INTF, CFG_PLD);
break;
case LPFC_SLI_INTF_IF_TYPE_1:
default:
break;
}
}
return port_error;
}
/**
* lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
* @phba: pointer to lpfc hba data structure.
* @if_type: The SLI4 interface type getting configured.
*
* This routine is invoked to set up SLI4 BAR0 PCI config space register
* memory map.
**/
static void
lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
{
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
phba->sli4_hba.u.if_type0.UERRLOregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
phba->sli4_hba.u.if_type0.UERRHIregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
phba->sli4_hba.SLIINTFregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
break;
case LPFC_SLI_INTF_IF_TYPE_2:
phba->sli4_hba.u.if_type2.EQDregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_EQ_DELAY_OFFSET;
phba->sli4_hba.u.if_type2.ERR1regaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_ER1_OFFSET;
phba->sli4_hba.u.if_type2.ERR2regaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_ER2_OFFSET;
phba->sli4_hba.u.if_type2.CTRLregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_CTL_OFFSET;
phba->sli4_hba.u.if_type2.STATUSregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_STA_OFFSET;
phba->sli4_hba.SLIINTFregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
phba->sli4_hba.PSMPHRregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_SEM_OFFSET;
phba->sli4_hba.RQDBregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_ULP0_RQ_DOORBELL;
phba->sli4_hba.WQDBregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_ULP0_WQ_DOORBELL;
phba->sli4_hba.CQDBregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
phba->sli4_hba.MQDBregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
phba->sli4_hba.BMBXregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
break;
case LPFC_SLI_INTF_IF_TYPE_6:
phba->sli4_hba.u.if_type2.EQDregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_EQ_DELAY_OFFSET;
phba->sli4_hba.u.if_type2.ERR1regaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_ER1_OFFSET;
phba->sli4_hba.u.if_type2.ERR2regaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_ER2_OFFSET;
phba->sli4_hba.u.if_type2.CTRLregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_CTL_OFFSET;
phba->sli4_hba.u.if_type2.STATUSregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_STA_OFFSET;
phba->sli4_hba.PSMPHRregaddr =
phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_SEM_OFFSET;
phba->sli4_hba.BMBXregaddr =
phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
break;
case LPFC_SLI_INTF_IF_TYPE_1:
default:
dev_printk(KERN_ERR, &phba->pcidev->dev,
"FATAL - unsupported SLI4 interface type - %d\n",
if_type);
break;
}
}
/**
* lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
* @phba: pointer to lpfc hba data structure.
* @if_type: sli if type to operate on.
*
* This routine is invoked to set up SLI4 BAR1 register memory map.
**/
static void
lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
{
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
phba->sli4_hba.PSMPHRregaddr =
phba->sli4_hba.ctrl_regs_memmap_p +
LPFC_SLIPORT_IF0_SMPHR;
phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
LPFC_HST_ISR0;
phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
LPFC_HST_IMR0;
phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
LPFC_HST_ISCR0;
break;
case LPFC_SLI_INTF_IF_TYPE_6:
phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
LPFC_IF6_RQ_DOORBELL;
phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
LPFC_IF6_WQ_DOORBELL;
phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
LPFC_IF6_CQ_DOORBELL;
phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
LPFC_IF6_EQ_DOORBELL;
phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
LPFC_IF6_MQ_DOORBELL;
break;
case LPFC_SLI_INTF_IF_TYPE_2:
case LPFC_SLI_INTF_IF_TYPE_1:
default:
dev_err(&phba->pcidev->dev,
"FATAL - unsupported SLI4 interface type - %d\n",
if_type);
break;
}
}
/**
* lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
* @phba: pointer to lpfc hba data structure.
* @vf: virtual function number
*
* This routine is invoked to set up SLI4 BAR2 doorbell register memory map
* based on the given viftual function number, @vf.
*
* Return 0 if successful, otherwise -ENODEV.
**/
static int
lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
{
if (vf > LPFC_VIR_FUNC_MAX)
return -ENODEV;
phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
vf * LPFC_VFR_PAGE_SIZE +
LPFC_ULP0_RQ_DOORBELL);
phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
vf * LPFC_VFR_PAGE_SIZE +
LPFC_ULP0_WQ_DOORBELL);
phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
vf * LPFC_VFR_PAGE_SIZE +
LPFC_EQCQ_DOORBELL);
phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
return 0;
}
/**
* lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to create the bootstrap mailbox
* region consistent with the SLI-4 interface spec. This
* routine allocates all memory necessary to communicate
* mailbox commands to the port and sets up all alignment
* needs. No locks are expected to be held when calling
* this routine.
*
* Return codes
* 0 - successful
* -ENOMEM - could not allocated memory.
**/
static int
lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
{
uint32_t bmbx_size;
struct lpfc_dmabuf *dmabuf;
struct dma_address *dma_address;
uint32_t pa_addr;
uint64_t phys_addr;
dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
/*
* The bootstrap mailbox region is comprised of 2 parts
* plus an alignment restriction of 16 bytes.
*/
bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
&dmabuf->phys, GFP_KERNEL);
if (!dmabuf->virt) {
kfree(dmabuf);
return -ENOMEM;
}
/*
* Initialize the bootstrap mailbox pointers now so that the register
* operations are simple later. The mailbox dma address is required
* to be 16-byte aligned. Also align the virtual memory as each
* maibox is copied into the bmbx mailbox region before issuing the
* command to the port.
*/
phba->sli4_hba.bmbx.dmabuf = dmabuf;
phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
LPFC_ALIGN_16_BYTE);
phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
LPFC_ALIGN_16_BYTE);
/*
* Set the high and low physical addresses now. The SLI4 alignment
* requirement is 16 bytes and the mailbox is posted to the port
* as two 30-bit addresses. The other data is a bit marking whether
* the 30-bit address is the high or low address.
* Upcast bmbx aphys to 64bits so shift instruction compiles
* clean on 32 bit machines.
*/
dma_address = &phba->sli4_hba.bmbx.dma_address;
phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
LPFC_BMBX_BIT1_ADDR_HI);
pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
LPFC_BMBX_BIT1_ADDR_LO);
return 0;
}
/**
* lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to teardown the bootstrap mailbox
* region and release all host resources. This routine requires
* the caller to ensure all mailbox commands recovered, no
* additional mailbox comands are sent, and interrupts are disabled
* before calling this routine.
*
**/
static void
lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
{
dma_free_coherent(&phba->pcidev->dev,
phba->sli4_hba.bmbx.bmbx_size,
phba->sli4_hba.bmbx.dmabuf->virt,
phba->sli4_hba.bmbx.dmabuf->phys);
kfree(phba->sli4_hba.bmbx.dmabuf);
memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
}
static const char * const lpfc_topo_to_str[] = {
"Loop then P2P",
"Loopback",
"P2P Only",
"Unsupported",
"Loop Only",
"Unsupported",
"P2P then Loop",
};
#define LINK_FLAGS_DEF 0x0
#define LINK_FLAGS_P2P 0x1
#define LINK_FLAGS_LOOP 0x2
/**
* lpfc_map_topology - Map the topology read from READ_CONFIG
* @phba: pointer to lpfc hba data structure.
* @rd_config: pointer to read config data
*
* This routine is invoked to map the topology values as read
* from the read config mailbox command. If the persistent
* topology feature is supported, the firmware will provide the
* saved topology information to be used in INIT_LINK
**/
static void
lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
{
u8 ptv, tf, pt;
ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
ptv, tf, pt);
if (!ptv) {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"2019 FW does not support persistent topology "
"Using driver parameter defined value [%s]",
lpfc_topo_to_str[phba->cfg_topology]);
return;
}
/* FW supports persistent topology - override module parameter value */
phba->hba_flag |= HBA_PERSISTENT_TOPO;
/* if ASIC_GEN_NUM >= 0xC) */
if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_6) ||
(bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_FAMILY_G6)) {
if (!tf) {
phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
? FLAGS_TOPOLOGY_MODE_LOOP
: FLAGS_TOPOLOGY_MODE_PT_PT);
} else {
phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
}
} else { /* G5 */
if (tf) {
/* If topology failover set - pt is '0' or '1' */
phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
FLAGS_TOPOLOGY_MODE_LOOP_PT);
} else {
phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
? FLAGS_TOPOLOGY_MODE_PT_PT
: FLAGS_TOPOLOGY_MODE_LOOP);
}
}
if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2020 Using persistent topology value [%s]",
lpfc_topo_to_str[phba->cfg_topology]);
} else {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"2021 Invalid topology values from FW "
"Using driver parameter defined value [%s]",
lpfc_topo_to_str[phba->cfg_topology]);
}
}
/**
* lpfc_sli4_read_config - Get the config parameters.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to read the configuration parameters from the HBA.
* The configuration parameters are used to set the base and maximum values
* for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
* allocation for the port.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
* -EIO - The mailbox failed to complete successfully.
**/
int
lpfc_sli4_read_config(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *pmb;
struct lpfc_mbx_read_config *rd_config;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t shdr_status, shdr_add_status;
struct lpfc_mbx_get_func_cfg *get_func_cfg;
struct lpfc_rsrc_desc_fcfcoe *desc;
char *pdesc_0;
uint16_t forced_link_speed;
uint32_t if_type, qmin, fawwpn;
int length, i, rc = 0, rc2;
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2011 Unable to allocate memory for issuing "
"SLI_CONFIG_SPECIAL mailbox command\n");
return -ENOMEM;
}
lpfc_read_config(phba, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2012 Mailbox failed , mbxCmd x%x "
"READ_CONFIG, mbxStatus x%x\n",
bf_get(lpfc_mqe_command, &pmb->u.mqe),
bf_get(lpfc_mqe_status, &pmb->u.mqe));
rc = -EIO;
} else {
rd_config = &pmb->u.mqe.un.rd_config;
if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
phba->sli4_hba.lnk_info.lnk_tp =
bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
phba->sli4_hba.lnk_info.lnk_no =
bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3081 lnk_type:%d, lnk_numb:%d\n",
phba->sli4_hba.lnk_info.lnk_tp,
phba->sli4_hba.lnk_info.lnk_no);
} else
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3082 Mailbox (x%x) returned ldv:x0\n",
bf_get(lpfc_mqe_command, &pmb->u.mqe));
if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
phba->bbcredit_support = 1;
phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
}
fawwpn = bf_get(lpfc_mbx_rd_conf_fawwpn, rd_config);
if (fawwpn) {
lpfc_printf_log(phba, KERN_INFO,
LOG_INIT | LOG_DISCOVERY,
"2702 READ_CONFIG: FA-PWWN is "
"configured on\n");
phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_CONFIG;
} else {
/* Clear FW configured flag, preserve driver flag */
phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_CONFIG;
}
phba->sli4_hba.conf_trunk =
bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
phba->sli4_hba.extents_in_use =
bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
phba->sli4_hba.max_cfg_param.max_xri =
bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
/* Reduce resource usage in kdump environment */
if (is_kdump_kernel() &&
phba->sli4_hba.max_cfg_param.max_xri > 512)
phba->sli4_hba.max_cfg_param.max_xri = 512;
phba->sli4_hba.max_cfg_param.xri_base =
bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
phba->sli4_hba.max_cfg_param.max_vpi =
bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
/* Limit the max we support */
if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
phba->sli4_hba.max_cfg_param.vpi_base =
bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
phba->sli4_hba.max_cfg_param.max_rpi =
bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
phba->sli4_hba.max_cfg_param.rpi_base =
bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
phba->sli4_hba.max_cfg_param.max_vfi =
bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
phba->sli4_hba.max_cfg_param.vfi_base =
bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
phba->sli4_hba.max_cfg_param.max_fcfi =
bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
phba->sli4_hba.max_cfg_param.max_eq =
bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
phba->sli4_hba.max_cfg_param.max_rq =
bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
phba->sli4_hba.max_cfg_param.max_wq =
bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
phba->sli4_hba.max_cfg_param.max_cq =
bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
phba->max_vports = phba->max_vpi;
/* Next decide on FPIN or Signal E2E CGN support
* For congestion alarms and warnings valid combination are:
* 1. FPIN alarms / FPIN warnings
* 2. Signal alarms / Signal warnings
* 3. FPIN alarms / Signal warnings
* 4. Signal alarms / FPIN warnings
*
* Initialize the adapter frequency to 100 mSecs
*/
phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
if (lpfc_use_cgn_signal) {
if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
}
if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
/* MUST support both alarm and warning
* because EDC does not support alarm alone.
*/
if (phba->cgn_reg_signal !=
EDC_CG_SIG_WARN_ONLY) {
/* Must support both or none */
phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
phba->cgn_reg_signal =
EDC_CG_SIG_NOTSUPPORTED;
} else {
phba->cgn_reg_signal =
EDC_CG_SIG_WARN_ALARM;
phba->cgn_reg_fpin =
LPFC_CGN_FPIN_NONE;
}
}
}
/* Set the congestion initial signal and fpin values. */
phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
phba->cgn_init_reg_signal = phba->cgn_reg_signal;
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
phba->cgn_reg_signal, phba->cgn_reg_fpin);
lpfc_map_topology(phba, rd_config);
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2003 cfg params Extents? %d "
"XRI(B:%d M:%d), "
"VPI(B:%d M:%d) "
"VFI(B:%d M:%d) "
"RPI(B:%d M:%d) "
"FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
phba->sli4_hba.extents_in_use,
phba->sli4_hba.max_cfg_param.xri_base,
phba->sli4_hba.max_cfg_param.max_xri,
phba->sli4_hba.max_cfg_param.vpi_base,
phba->sli4_hba.max_cfg_param.max_vpi,
phba->sli4_hba.max_cfg_param.vfi_base,
phba->sli4_hba.max_cfg_param.max_vfi,
phba->sli4_hba.max_cfg_param.rpi_base,
phba->sli4_hba.max_cfg_param.max_rpi,
phba->sli4_hba.max_cfg_param.max_fcfi,
phba->sli4_hba.max_cfg_param.max_eq,
phba->sli4_hba.max_cfg_param.max_cq,
phba->sli4_hba.max_cfg_param.max_wq,
phba->sli4_hba.max_cfg_param.max_rq,
phba->lmt);
/*
* Calculate queue resources based on how
* many WQ/CQ/EQs are available.
*/
qmin = phba->sli4_hba.max_cfg_param.max_wq;
if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
qmin = phba->sli4_hba.max_cfg_param.max_cq;
/*
* Reserve 4 (ELS, NVME LS, MBOX, plus one extra) and
* the remainder can be used for NVME / FCP.
*/
qmin -= 4;
if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
qmin = phba->sli4_hba.max_cfg_param.max_eq;
/* Check to see if there is enough for default cfg */
if ((phba->cfg_irq_chann > qmin) ||
(phba->cfg_hdw_queue > qmin)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2005 Reducing Queues - "
"FW resource limitation: "
"WQ %d CQ %d EQ %d: min %d: "
"IRQ %d HDWQ %d\n",
phba->sli4_hba.max_cfg_param.max_wq,
phba->sli4_hba.max_cfg_param.max_cq,
phba->sli4_hba.max_cfg_param.max_eq,
qmin, phba->cfg_irq_chann,
phba->cfg_hdw_queue);
if (phba->cfg_irq_chann > qmin)
phba->cfg_irq_chann = qmin;
if (phba->cfg_hdw_queue > qmin)
phba->cfg_hdw_queue = qmin;
}
}
if (rc)
goto read_cfg_out;
/* Update link speed if forced link speed is supported */
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
forced_link_speed =
bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
if (forced_link_speed) {
phba->hba_flag |= HBA_FORCED_LINK_SPEED;
switch (forced_link_speed) {
case LINK_SPEED_1G:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_1G;
break;
case LINK_SPEED_2G:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_2G;
break;
case LINK_SPEED_4G:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_4G;
break;
case LINK_SPEED_8G:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_8G;
break;
case LINK_SPEED_10G:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_10G;
break;
case LINK_SPEED_16G:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_16G;
break;
case LINK_SPEED_32G:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_32G;
break;
case LINK_SPEED_64G:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_64G;
break;
case 0xffff:
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_AUTO;
break;
default:
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"0047 Unrecognized link "
"speed : %d\n",
forced_link_speed);
phba->cfg_link_speed =
LPFC_USER_LINK_SPEED_AUTO;
}
}
}
/* Reset the DFT_HBA_Q_DEPTH to the max xri */
length = phba->sli4_hba.max_cfg_param.max_xri -
lpfc_sli4_get_els_iocb_cnt(phba);
if (phba->cfg_hba_queue_depth > length) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"3361 HBA queue depth changed from %d to %d\n",
phba->cfg_hba_queue_depth, length);
phba->cfg_hba_queue_depth = length;
}
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2)
goto read_cfg_out;
/* get the pf# and vf# for SLI4 if_type 2 port */
length = (sizeof(struct lpfc_mbx_get_func_cfg) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
length, LPFC_SLI4_MBX_EMBED);
rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *)
&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (rc2 || shdr_status || shdr_add_status) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3026 Mailbox failed , mbxCmd x%x "
"GET_FUNCTION_CONFIG, mbxStatus x%x\n",
bf_get(lpfc_mqe_command, &pmb->u.mqe),
bf_get(lpfc_mqe_status, &pmb->u.mqe));
goto read_cfg_out;
}
/* search for fc_fcoe resrouce descriptor */
get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
goto read_cfg_out;
for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
phba->sli4_hba.iov.pf_number =
bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
phba->sli4_hba.iov.vf_number =
bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
break;
}
}
if (i < LPFC_RSRC_DESC_MAX_NUM)
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3027 GET_FUNCTION_CONFIG: pf_number:%d, "
"vf_number:%d\n", phba->sli4_hba.iov.pf_number,
phba->sli4_hba.iov.vf_number);
else
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3028 GET_FUNCTION_CONFIG: failed to find "
"Resource Descriptor:x%x\n",
LPFC_RSRC_DESC_TYPE_FCFCOE);
read_cfg_out:
mempool_free(pmb, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to setup the port-side endian order when
* the port if_type is 0. This routine has no function for other
* if_types.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
* -EIO - The mailbox failed to complete successfully.
**/
static int
lpfc_setup_endian_order(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
uint32_t if_type, rc = 0;
uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
HOST_ENDIAN_HIGH_WORD1};
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0492 Unable to allocate memory for "
"issuing SLI_CONFIG_SPECIAL mailbox "
"command\n");
return -ENOMEM;
}
/*
* The SLI4_CONFIG_SPECIAL mailbox command requires the first
* two words to contain special data values and no other data.
*/
memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0493 SLI_CONFIG_SPECIAL mailbox "
"failed with status x%x\n",
rc);
rc = -EIO;
}
mempool_free(mboxq, phba->mbox_mem_pool);
break;
case LPFC_SLI_INTF_IF_TYPE_6:
case LPFC_SLI_INTF_IF_TYPE_2:
case LPFC_SLI_INTF_IF_TYPE_1:
default:
break;
}
return rc;
}
/**
* lpfc_sli4_queue_verify - Verify and update EQ counts
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to check the user settable queue counts for EQs.
* After this routine is called the counts will be set to valid values that
* adhere to the constraints of the system's interrupt vectors and the port's
* queue resources.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
**/
static int
lpfc_sli4_queue_verify(struct lpfc_hba *phba)
{
/*
* Sanity check for configured queue parameters against the run-time
* device parameters
*/
if (phba->nvmet_support) {
if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
}
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
phba->cfg_hdw_queue, phba->cfg_irq_chann,
phba->cfg_nvmet_mrq);
/* Get EQ depth from module parameter, fake the default for now */
phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
/* Get CQ depth from module parameter, fake the default for now */
phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
return 0;
}
static int
lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
{
struct lpfc_queue *qdesc;
u32 wqesize;
int cpu;
cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
/* Create Fast Path IO CQs */
if (phba->enab_exp_wqcq_pages)
/* Increase the CQ size when WQEs contain an embedded cdb */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
phba->sli4_hba.cq_esize,
LPFC_CQE_EXP_COUNT, cpu);
else
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.cq_esize,
phba->sli4_hba.cq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0499 Failed allocate fast-path IO CQ (%d)\n",
idx);
return 1;
}
qdesc->qe_valid = 1;
qdesc->hdwq = idx;
qdesc->chann = cpu;
phba->sli4_hba.hdwq[idx].io_cq = qdesc;
/* Create Fast Path IO WQs */
if (phba->enab_exp_wqcq_pages) {
/* Increase the WQ size when WQEs contain an embedded cdb */
wqesize = (phba->fcp_embed_io) ?
LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
wqesize,
LPFC_WQE_EXP_COUNT, cpu);
} else
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.wq_esize,
phba->sli4_hba.wq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0503 Failed allocate fast-path IO WQ (%d)\n",
idx);
return 1;
}
qdesc->hdwq = idx;
qdesc->chann = cpu;
phba->sli4_hba.hdwq[idx].io_wq = qdesc;
list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
return 0;
}
/**
* lpfc_sli4_queue_create - Create all the SLI4 queues
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
* operation. For each SLI4 queue type, the parameters such as queue entry
* count (queue depth) shall be taken from the module parameter. For now,
* we just use some constant number as place holder.
*
* Return codes
* 0 - successful
* -ENOMEM - No availble memory
* -EIO - The mailbox failed to complete successfully.
**/
int
lpfc_sli4_queue_create(struct lpfc_hba *phba)
{
struct lpfc_queue *qdesc;
int idx, cpu, eqcpu;
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_vector_map_info *cpup;
struct lpfc_vector_map_info *eqcpup;
struct lpfc_eq_intr_info *eqi;
/*
* Create HBA Record arrays.
* Both NVME and FCP will share that same vectors / EQs
*/
phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
if (!phba->sli4_hba.hdwq) {
phba->sli4_hba.hdwq = kcalloc(
phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
GFP_KERNEL);
if (!phba->sli4_hba.hdwq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6427 Failed allocate memory for "
"fast-path Hardware Queue array\n");
goto out_error;
}
/* Prepare hardware queues to take IO buffers */
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
qp = &phba->sli4_hba.hdwq[idx];
spin_lock_init(&qp->io_buf_list_get_lock);
spin_lock_init(&qp->io_buf_list_put_lock);
INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
qp->get_io_bufs = 0;
qp->put_io_bufs = 0;
qp->total_io_bufs = 0;
spin_lock_init(&qp->abts_io_buf_list_lock);
INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
qp->abts_scsi_io_bufs = 0;
qp->abts_nvme_io_bufs = 0;
INIT_LIST_HEAD(&qp->sgl_list);
INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
spin_lock_init(&qp->hdwq_lock);
}
}
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
if (phba->nvmet_support) {
phba->sli4_hba.nvmet_cqset = kcalloc(
phba->cfg_nvmet_mrq,
sizeof(struct lpfc_queue *),
GFP_KERNEL);
if (!phba->sli4_hba.nvmet_cqset) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3121 Fail allocate memory for "
"fast-path CQ set array\n");
goto out_error;
}
phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
phba->cfg_nvmet_mrq,
sizeof(struct lpfc_queue *),
GFP_KERNEL);
if (!phba->sli4_hba.nvmet_mrq_hdr) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3122 Fail allocate memory for "
"fast-path RQ set hdr array\n");
goto out_error;
}
phba->sli4_hba.nvmet_mrq_data = kcalloc(
phba->cfg_nvmet_mrq,
sizeof(struct lpfc_queue *),
GFP_KERNEL);
if (!phba->sli4_hba.nvmet_mrq_data) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3124 Fail allocate memory for "
"fast-path RQ set data array\n");
goto out_error;
}
}
}
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
/* Create HBA Event Queues (EQs) */
for_each_present_cpu(cpu) {
/* We only want to create 1 EQ per vector, even though
* multiple CPUs might be using that vector. so only
* selects the CPUs that are LPFC_CPU_FIRST_IRQ.
*/
cpup = &phba->sli4_hba.cpu_map[cpu];
if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
continue;
/* Get a ptr to the Hardware Queue associated with this CPU */
qp = &phba->sli4_hba.hdwq[cpup->hdwq];
/* Allocate an EQ */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.eq_esize,
phba->sli4_hba.eq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0497 Failed allocate EQ (%d)\n",
cpup->hdwq);
goto out_error;
}
qdesc->qe_valid = 1;
qdesc->hdwq = cpup->hdwq;
qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
qdesc->last_cpu = qdesc->chann;
/* Save the allocated EQ in the Hardware Queue */
qp->hba_eq = qdesc;
eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
list_add(&qdesc->cpu_list, &eqi->list);
}
/* Now we need to populate the other Hardware Queues, that share
* an IRQ vector, with the associated EQ ptr.
*/
for_each_present_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
/* Check for EQ already allocated in previous loop */
if (cpup->flag & LPFC_CPU_FIRST_IRQ)
continue;
/* Check for multiple CPUs per hdwq */
qp = &phba->sli4_hba.hdwq[cpup->hdwq];
if (qp->hba_eq)
continue;
/* We need to share an EQ for this hdwq */
eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
}
/* Allocate IO Path SLI4 CQ/WQs */
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
if (lpfc_alloc_io_wq_cq(phba, idx))
goto out_error;
}
if (phba->nvmet_support) {
for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
cpu = lpfc_find_cpu_handle(phba, idx,
LPFC_FIND_BY_HDWQ);
qdesc = lpfc_sli4_queue_alloc(phba,
LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.cq_esize,
phba->sli4_hba.cq_ecount,
cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3142 Failed allocate NVME "
"CQ Set (%d)\n", idx);
goto out_error;
}
qdesc->qe_valid = 1;
qdesc->hdwq = idx;
qdesc->chann = cpu;
phba->sli4_hba.nvmet_cqset[idx] = qdesc;
}
}
/*
* Create Slow Path Completion Queues (CQs)
*/
cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
/* Create slow-path Mailbox Command Complete Queue */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.cq_esize,
phba->sli4_hba.cq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0500 Failed allocate slow-path mailbox CQ\n");
goto out_error;
}
qdesc->qe_valid = 1;
phba->sli4_hba.mbx_cq = qdesc;
/* Create slow-path ELS Complete Queue */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.cq_esize,
phba->sli4_hba.cq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0501 Failed allocate slow-path ELS CQ\n");
goto out_error;
}
qdesc->qe_valid = 1;
qdesc->chann = cpu;
phba->sli4_hba.els_cq = qdesc;
/*
* Create Slow Path Work Queues (WQs)
*/
/* Create Mailbox Command Queue */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.mq_esize,
phba->sli4_hba.mq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0505 Failed allocate slow-path MQ\n");
goto out_error;
}
qdesc->chann = cpu;
phba->sli4_hba.mbx_wq = qdesc;
/*
* Create ELS Work Queues
*/
/* Create slow-path ELS Work Queue */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.wq_esize,
phba->sli4_hba.wq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0504 Failed allocate slow-path ELS WQ\n");
goto out_error;
}
qdesc->chann = cpu;
phba->sli4_hba.els_wq = qdesc;
list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
/* Create NVME LS Complete Queue */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.cq_esize,
phba->sli4_hba.cq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6079 Failed allocate NVME LS CQ\n");
goto out_error;
}
qdesc->chann = cpu;
qdesc->qe_valid = 1;
phba->sli4_hba.nvmels_cq = qdesc;
/* Create NVME LS Work Queue */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.wq_esize,
phba->sli4_hba.wq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6080 Failed allocate NVME LS WQ\n");
goto out_error;
}
qdesc->chann = cpu;
phba->sli4_hba.nvmels_wq = qdesc;
list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
}
/*
* Create Receive Queue (RQ)
*/
/* Create Receive Queue for header */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.rq_esize,
phba->sli4_hba.rq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0506 Failed allocate receive HRQ\n");
goto out_error;
}
phba->sli4_hba.hdr_rq = qdesc;
/* Create Receive Queue for data */
qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.rq_esize,
phba->sli4_hba.rq_ecount, cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0507 Failed allocate receive DRQ\n");
goto out_error;
}
phba->sli4_hba.dat_rq = qdesc;
if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
phba->nvmet_support) {
for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
cpu = lpfc_find_cpu_handle(phba, idx,
LPFC_FIND_BY_HDWQ);
/* Create NVMET Receive Queue for header */
qdesc = lpfc_sli4_queue_alloc(phba,
LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.rq_esize,
LPFC_NVMET_RQE_DEF_COUNT,
cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3146 Failed allocate "
"receive HRQ\n");
goto out_error;
}
qdesc->hdwq = idx;
phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
/* Only needed for header of RQ pair */
qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
GFP_KERNEL,
cpu_to_node(cpu));
if (qdesc->rqbp == NULL) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6131 Failed allocate "
"Header RQBP\n");
goto out_error;
}
/* Put list in known state in case driver load fails. */
INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
/* Create NVMET Receive Queue for data */
qdesc = lpfc_sli4_queue_alloc(phba,
LPFC_DEFAULT_PAGE_SIZE,
phba->sli4_hba.rq_esize,
LPFC_NVMET_RQE_DEF_COUNT,
cpu);
if (!qdesc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3156 Failed allocate "
"receive DRQ\n");
goto out_error;
}
qdesc->hdwq = idx;
phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
}
}
/* Clear NVME stats */
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
}
}
/* Clear SCSI stats */
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
}
}
return 0;
out_error:
lpfc_sli4_queue_destroy(phba);
return -ENOMEM;
}
static inline void
__lpfc_sli4_release_queue(struct lpfc_queue **qp)
{
if (*qp != NULL) {
lpfc_sli4_queue_free(*qp);
*qp = NULL;
}
}
static inline void
lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
{
int idx;
if (*qs == NULL)
return;
for (idx = 0; idx < max; idx++)
__lpfc_sli4_release_queue(&(*qs)[idx]);
kfree(*qs);
*qs = NULL;
}
static inline void
lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
{
struct lpfc_sli4_hdw_queue *hdwq;
struct lpfc_queue *eq;
uint32_t idx;
hdwq = phba->sli4_hba.hdwq;
/* Loop thru all Hardware Queues */
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
/* Free the CQ/WQ corresponding to the Hardware Queue */
lpfc_sli4_queue_free(hdwq[idx].io_cq);
lpfc_sli4_queue_free(hdwq[idx].io_wq);
hdwq[idx].hba_eq = NULL;
hdwq[idx].io_cq = NULL;
hdwq[idx].io_wq = NULL;
if (phba->cfg_xpsgl && !phba->nvmet_support)
lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
}
/* Loop thru all IRQ vectors */
for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
/* Free the EQ corresponding to the IRQ vector */
eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
lpfc_sli4_queue_free(eq);
phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
}
}
/**
* lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to release all the SLI4 queues with the FCoE HBA
* operation.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
* -EIO - The mailbox failed to complete successfully.
**/
void
lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
{
/*
* Set FREE_INIT before beginning to free the queues.
* Wait until the users of queues to acknowledge to
* release queues by clearing FREE_WAIT.
*/
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
spin_unlock_irq(&phba->hbalock);
msleep(20);
spin_lock_irq(&phba->hbalock);
}
spin_unlock_irq(&phba->hbalock);
lpfc_sli4_cleanup_poll_list(phba);
/* Release HBA eqs */
if (phba->sli4_hba.hdwq)
lpfc_sli4_release_hdwq(phba);
if (phba->nvmet_support) {
lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
phba->cfg_nvmet_mrq);
lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
phba->cfg_nvmet_mrq);
lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
phba->cfg_nvmet_mrq);
}
/* Release mailbox command work queue */
__lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
/* Release ELS work queue */
__lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
/* Release ELS work queue */
__lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
/* Release unsolicited receive queue */
__lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
__lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
/* Release ELS complete queue */
__lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
/* Release NVME LS complete queue */
__lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
/* Release mailbox command complete queue */
__lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
/* Everything on this list has been freed */
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
/* Done with freeing the queues */
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
spin_unlock_irq(&phba->hbalock);
}
int
lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
{
struct lpfc_rqb *rqbp;
struct lpfc_dmabuf *h_buf;
struct rqb_dmabuf *rqb_buffer;
rqbp = rq->rqbp;
while (!list_empty(&rqbp->rqb_buffer_list)) {
list_remove_head(&rqbp->rqb_buffer_list, h_buf,
struct lpfc_dmabuf, list);
rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
(rqbp->rqb_free_buffer)(phba, rqb_buffer);
rqbp->buffer_count--;
}
return 1;
}
static int
lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
int qidx, uint32_t qtype)
{
struct lpfc_sli_ring *pring;
int rc;
if (!eq || !cq || !wq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6085 Fast-path %s (%d) not allocated\n",
((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
return -ENOMEM;
}
/* create the Cq first */
rc = lpfc_cq_create(phba, cq, eq,
(qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6086 Failed setup of CQ (%d), rc = 0x%x\n",
qidx, (uint32_t)rc);
return rc;
}
if (qtype != LPFC_MBOX) {
/* Setup cq_map for fast lookup */
if (cq_map)
*cq_map = cq->queue_id;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
qidx, cq->queue_id, qidx, eq->queue_id);
/* create the wq */
rc = lpfc_wq_create(phba, wq, cq, qtype);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
qidx, (uint32_t)rc);
/* no need to tear down cq - caller will do so */
return rc;
}
/* Bind this CQ/WQ to the NVME ring */
pring = wq->pring;
pring->sli.sli4.wqp = (void *)wq;
cq->pring = pring;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
} else {
rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0539 Failed setup of slow-path MQ: "
"rc = 0x%x\n", rc);
/* no need to tear down cq - caller will do so */
return rc;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
phba->sli4_hba.mbx_wq->queue_id,
phba->sli4_hba.mbx_cq->queue_id);
}
return 0;
}
/**
* lpfc_setup_cq_lookup - Setup the CQ lookup table
* @phba: pointer to lpfc hba data structure.
*
* This routine will populate the cq_lookup table by all
* available CQ queue_id's.
**/
static void
lpfc_setup_cq_lookup(struct lpfc_hba *phba)
{
struct lpfc_queue *eq, *childq;
int qidx;
memset(phba->sli4_hba.cq_lookup, 0,
(sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
/* Loop thru all IRQ vectors */
for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
/* Get the EQ corresponding to the IRQ vector */
eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
if (!eq)
continue;
/* Loop through all CQs associated with that EQ */
list_for_each_entry(childq, &eq->child_list, list) {
if (childq->queue_id > phba->sli4_hba.cq_max)
continue;
if (childq->subtype == LPFC_IO)
phba->sli4_hba.cq_lookup[childq->queue_id] =
childq;
}
}
}
/**
* lpfc_sli4_queue_setup - Set up all the SLI4 queues
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to set up all the SLI4 queues for the FCoE HBA
* operation.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
* -EIO - The mailbox failed to complete successfully.
**/
int
lpfc_sli4_queue_setup(struct lpfc_hba *phba)
{
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
struct lpfc_vector_map_info *cpup;
struct lpfc_sli4_hdw_queue *qp;
LPFC_MBOXQ_t *mboxq;
int qidx, cpu;
uint32_t length, usdelay;
int rc = -ENOMEM;
/* Check for dual-ULP support */
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3249 Unable to allocate memory for "
"QUERY_FW_CFG mailbox command\n");
return -ENOMEM;
}
length = (sizeof(struct lpfc_mbx_query_fw_config) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_QUERY_FW_CFG,
length, LPFC_SLI4_MBX_EMBED);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *)
&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3250 QUERY_FW_CFG mailbox failed with status "
"x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
mempool_free(mboxq, phba->mbox_mem_pool);
rc = -ENXIO;
goto out_error;
}
phba->sli4_hba.fw_func_mode =
mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
phba->sli4_hba.physical_port =
mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
"ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
mempool_free(mboxq, phba->mbox_mem_pool);
/*
* Set up HBA Event Queues (EQs)
*/
qp = phba->sli4_hba.hdwq;
/* Set up HBA event queue */
if (!qp) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3147 Fast-path EQs not allocated\n");
rc = -ENOMEM;
goto out_error;
}
/* Loop thru all IRQ vectors */
for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
/* Create HBA Event Queues (EQs) in order */
for_each_present_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
/* Look for the CPU thats using that vector with
* LPFC_CPU_FIRST_IRQ set.
*/
if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
continue;
if (qidx != cpup->eq)
continue;
/* Create an EQ for that vector */
rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
phba->cfg_fcp_imax);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0523 Failed setup of fast-path"
" EQ (%d), rc = 0x%x\n",
cpup->eq, (uint32_t)rc);
goto out_destroy;
}
/* Save the EQ for that vector in the hba_eq_hdl */
phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
qp[cpup->hdwq].hba_eq;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2584 HBA EQ setup: queue[%d]-id=%d\n",
cpup->eq,
qp[cpup->hdwq].hba_eq->queue_id);
}
}
/* Loop thru all Hardware Queues */
for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
cpup = &phba->sli4_hba.cpu_map[cpu];
/* Create the CQ/WQ corresponding to the Hardware Queue */
rc = lpfc_create_wq_cq(phba,
phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
qp[qidx].io_cq,
qp[qidx].io_wq,
&phba->sli4_hba.hdwq[qidx].io_cq_map,
qidx,
LPFC_IO);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0535 Failed to setup fastpath "
"IO WQ/CQ (%d), rc = 0x%x\n",
qidx, (uint32_t)rc);
goto out_destroy;
}
}
/*
* Set up Slow Path Complete Queues (CQs)
*/
/* Set up slow-path MBOX CQ/MQ */
if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0528 %s not allocated\n",
phba->sli4_hba.mbx_cq ?
"Mailbox WQ" : "Mailbox CQ");
rc = -ENOMEM;
goto out_destroy;
}
rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
phba->sli4_hba.mbx_cq,
phba->sli4_hba.mbx_wq,
NULL, 0, LPFC_MBOX);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
(uint32_t)rc);
goto out_destroy;
}
if (phba->nvmet_support) {
if (!phba->sli4_hba.nvmet_cqset) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3165 Fast-path NVME CQ Set "
"array not allocated\n");
rc = -ENOMEM;
goto out_destroy;
}
if (phba->cfg_nvmet_mrq > 1) {
rc = lpfc_cq_create_set(phba,
phba->sli4_hba.nvmet_cqset,
qp,
LPFC_WCQ, LPFC_NVMET);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3164 Failed setup of NVME CQ "
"Set, rc = 0x%x\n",
(uint32_t)rc);
goto out_destroy;
}
} else {
/* Set up NVMET Receive Complete Queue */
rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
qp[0].hba_eq,
LPFC_WCQ, LPFC_NVMET);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6089 Failed setup NVMET CQ: "
"rc = 0x%x\n", (uint32_t)rc);
goto out_destroy;
}
phba->sli4_hba.nvmet_cqset[0]->chann = 0;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"6090 NVMET CQ setup: cq-id=%d, "
"parent eq-id=%d\n",
phba->sli4_hba.nvmet_cqset[0]->queue_id,
qp[0].hba_eq->queue_id);
}
}
/* Set up slow-path ELS WQ/CQ */
if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0530 ELS %s not allocated\n",
phba->sli4_hba.els_cq ? "WQ" : "CQ");
rc = -ENOMEM;
goto out_destroy;
}
rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
phba->sli4_hba.els_cq,
phba->sli4_hba.els_wq,
NULL, 0, LPFC_ELS);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
(uint32_t)rc);
goto out_destroy;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
phba->sli4_hba.els_wq->queue_id,
phba->sli4_hba.els_cq->queue_id);
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
/* Set up NVME LS Complete Queue */
if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6091 LS %s not allocated\n",
phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
rc = -ENOMEM;
goto out_destroy;
}
rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
phba->sli4_hba.nvmels_cq,
phba->sli4_hba.nvmels_wq,
NULL, 0, LPFC_NVME_LS);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0526 Failed setup of NVVME LS WQ/CQ: "
"rc = 0x%x\n", (uint32_t)rc);
goto out_destroy;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"6096 ELS WQ setup: wq-id=%d, "
"parent cq-id=%d\n",
phba->sli4_hba.nvmels_wq->queue_id,
phba->sli4_hba.nvmels_cq->queue_id);
}
/*
* Create NVMET Receive Queue (RQ)
*/
if (phba->nvmet_support) {
if ((!phba->sli4_hba.nvmet_cqset) ||
(!phba->sli4_hba.nvmet_mrq_hdr) ||
(!phba->sli4_hba.nvmet_mrq_data)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6130 MRQ CQ Queues not "
"allocated\n");
rc = -ENOMEM;
goto out_destroy;
}
if (phba->cfg_nvmet_mrq > 1) {
rc = lpfc_mrq_create(phba,
phba->sli4_hba.nvmet_mrq_hdr,
phba->sli4_hba.nvmet_mrq_data,
phba->sli4_hba.nvmet_cqset,
LPFC_NVMET);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6098 Failed setup of NVMET "
"MRQ: rc = 0x%x\n",
(uint32_t)rc);
goto out_destroy;
}
} else {
rc = lpfc_rq_create(phba,
phba->sli4_hba.nvmet_mrq_hdr[0],
phba->sli4_hba.nvmet_mrq_data[0],
phba->sli4_hba.nvmet_cqset[0],
LPFC_NVMET);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6057 Failed setup of NVMET "
"Receive Queue: rc = 0x%x\n",
(uint32_t)rc);
goto out_destroy;
}
lpfc_printf_log(
phba, KERN_INFO, LOG_INIT,
"6099 NVMET RQ setup: hdr-rq-id=%d, "
"dat-rq-id=%d parent cq-id=%d\n",
phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
phba->sli4_hba.nvmet_cqset[0]->queue_id);
}
}
if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0540 Receive Queue not allocated\n");
rc = -ENOMEM;
goto out_destroy;
}
rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
phba->sli4_hba.els_cq, LPFC_USOL);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0541 Failed setup of Receive Queue: "
"rc = 0x%x\n", (uint32_t)rc);
goto out_destroy;
}
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
"parent cq-id=%d\n",
phba->sli4_hba.hdr_rq->queue_id,
phba->sli4_hba.dat_rq->queue_id,
phba->sli4_hba.els_cq->queue_id);
if (phba->cfg_fcp_imax)
usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
else
usdelay = 0;
for (qidx = 0; qidx < phba->cfg_irq_chann;
qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
usdelay);
if (phba->sli4_hba.cq_max) {
kfree(phba->sli4_hba.cq_lookup);
phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
sizeof(struct lpfc_queue *), GFP_KERNEL);
if (!phba->sli4_hba.cq_lookup) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0549 Failed setup of CQ Lookup table: "
"size 0x%x\n", phba->sli4_hba.cq_max);
rc = -ENOMEM;
goto out_destroy;
}
lpfc_setup_cq_lookup(phba);
}
return 0;
out_destroy:
lpfc_sli4_queue_unset(phba);
out_error:
return rc;
}
/**
* lpfc_sli4_queue_unset - Unset all the SLI4 queues
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unset all the SLI4 queues with the FCoE HBA
* operation.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
* -EIO - The mailbox failed to complete successfully.
**/
void
lpfc_sli4_queue_unset(struct lpfc_hba *phba)
{
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_queue *eq;
int qidx;
/* Unset mailbox command work queue */
if (phba->sli4_hba.mbx_wq)
lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
/* Unset NVME LS work queue */
if (phba->sli4_hba.nvmels_wq)
lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
/* Unset ELS work queue */
if (phba->sli4_hba.els_wq)
lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
/* Unset unsolicited receive queue */
if (phba->sli4_hba.hdr_rq)
lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
phba->sli4_hba.dat_rq);
/* Unset mailbox command complete queue */
if (phba->sli4_hba.mbx_cq)
lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
/* Unset ELS complete queue */
if (phba->sli4_hba.els_cq)
lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
/* Unset NVME LS complete queue */
if (phba->sli4_hba.nvmels_cq)
lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
if (phba->nvmet_support) {
/* Unset NVMET MRQ queue */
if (phba->sli4_hba.nvmet_mrq_hdr) {
for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
lpfc_rq_destroy(
phba,
phba->sli4_hba.nvmet_mrq_hdr[qidx],
phba->sli4_hba.nvmet_mrq_data[qidx]);
}
/* Unset NVMET CQ Set complete queue */
if (phba->sli4_hba.nvmet_cqset) {
for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
lpfc_cq_destroy(
phba, phba->sli4_hba.nvmet_cqset[qidx]);
}
}
/* Unset fast-path SLI4 queues */
if (phba->sli4_hba.hdwq) {
/* Loop thru all Hardware Queues */
for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
/* Destroy the CQ/WQ corresponding to Hardware Queue */
qp = &phba->sli4_hba.hdwq[qidx];
lpfc_wq_destroy(phba, qp->io_wq);
lpfc_cq_destroy(phba, qp->io_cq);
}
/* Loop thru all IRQ vectors */
for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
/* Destroy the EQ corresponding to the IRQ vector */
eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
lpfc_eq_destroy(phba, eq);
}
}
kfree(phba->sli4_hba.cq_lookup);
phba->sli4_hba.cq_lookup = NULL;
phba->sli4_hba.cq_max = 0;
}
/**
* lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to allocate and set up a pool of completion queue
* events. The body of the completion queue event is a completion queue entry
* CQE. For now, this pool is used for the interrupt service routine to queue
* the following HBA completion queue events for the worker thread to process:
* - Mailbox asynchronous events
* - Receive queue completion unsolicited events
* Later, this can be used for all the slow-path events.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
**/
static int
lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
{
struct lpfc_cq_event *cq_event;
int i;
for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
if (!cq_event)
goto out_pool_create_fail;
list_add_tail(&cq_event->list,
&phba->sli4_hba.sp_cqe_event_pool);
}
return 0;
out_pool_create_fail:
lpfc_sli4_cq_event_pool_destroy(phba);
return -ENOMEM;
}
/**
* lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to free the pool of completion queue events at
* driver unload time. Note that, it is the responsibility of the driver
* cleanup routine to free all the outstanding completion-queue events
* allocated from this pool back into the pool before invoking this routine
* to destroy the pool.
**/
static void
lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
{
struct lpfc_cq_event *cq_event, *next_cq_event;
list_for_each_entry_safe(cq_event, next_cq_event,
&phba->sli4_hba.sp_cqe_event_pool, list) {
list_del(&cq_event->list);
kfree(cq_event);
}
}
/**
* __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
* @phba: pointer to lpfc hba data structure.
*
* This routine is the lock free version of the API invoked to allocate a
* completion-queue event from the free pool.
*
* Return: Pointer to the newly allocated completion-queue event if successful
* NULL otherwise.
**/
struct lpfc_cq_event *
__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
{
struct lpfc_cq_event *cq_event = NULL;
list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
struct lpfc_cq_event, list);
return cq_event;
}
/**
* lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
* @phba: pointer to lpfc hba data structure.
*
* This routine is the lock version of the API invoked to allocate a
* completion-queue event from the free pool.
*
* Return: Pointer to the newly allocated completion-queue event if successful
* NULL otherwise.
**/
struct lpfc_cq_event *
lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
{
struct lpfc_cq_event *cq_event;
unsigned long iflags;
spin_lock_irqsave(&phba->hbalock, iflags);
cq_event = __lpfc_sli4_cq_event_alloc(phba);
spin_unlock_irqrestore(&phba->hbalock, iflags);
return cq_event;
}
/**
* __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
* @phba: pointer to lpfc hba data structure.
* @cq_event: pointer to the completion queue event to be freed.
*
* This routine is the lock free version of the API invoked to release a
* completion-queue event back into the free pool.
**/
void
__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
struct lpfc_cq_event *cq_event)
{
list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
}
/**
* lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
* @phba: pointer to lpfc hba data structure.
* @cq_event: pointer to the completion queue event to be freed.
*
* This routine is the lock version of the API invoked to release a
* completion-queue event back into the free pool.
**/
void
lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
struct lpfc_cq_event *cq_event)
{
unsigned long iflags;
spin_lock_irqsave(&phba->hbalock, iflags);
__lpfc_sli4_cq_event_release(phba, cq_event);
spin_unlock_irqrestore(&phba->hbalock, iflags);
}
/**
* lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
* @phba: pointer to lpfc hba data structure.
*
* This routine is to free all the pending completion-queue events to the
* back into the free pool for device reset.
**/
static void
lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
{
LIST_HEAD(cq_event_list);
struct lpfc_cq_event *cq_event;
unsigned long iflags;
/* Retrieve all the pending WCQEs from pending WCQE lists */
/* Pending ELS XRI abort events */
spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
&cq_event_list);
spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
/* Pending asynnc events */
spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
&cq_event_list);
spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
while (!list_empty(&cq_event_list)) {
list_remove_head(&cq_event_list, cq_event,
struct lpfc_cq_event, list);
lpfc_sli4_cq_event_release(phba, cq_event);
}
}
/**
* lpfc_pci_function_reset - Reset pci function.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to request a PCI function reset. It will destroys
* all resources assigned to the PCI function which originates this request.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
* -EIO - The mailbox failed to complete successfully.
**/
int
lpfc_pci_function_reset(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
uint32_t rc = 0, if_type;
uint32_t shdr_status, shdr_add_status;
uint32_t rdy_chk;
uint32_t port_reset = 0;
union lpfc_sli4_cfg_shdr *shdr;
struct lpfc_register reg_data;
uint16_t devid;
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0494 Unable to allocate memory for "
"issuing SLI_FUNCTION_RESET mailbox "
"command\n");
return -ENOMEM;
}
/* Setup PCI function reset mailbox-ioctl command */
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
LPFC_SLI4_MBX_EMBED);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *)
&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
&shdr->response);
mempool_free(mboxq, phba->mbox_mem_pool);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0495 SLI_FUNCTION_RESET mailbox "
"failed with status x%x add_status x%x,"
" mbx status x%x\n",
shdr_status, shdr_add_status, rc);
rc = -ENXIO;
}
break;
case LPFC_SLI_INTF_IF_TYPE_2:
case LPFC_SLI_INTF_IF_TYPE_6:
wait:
/*
* Poll the Port Status Register and wait for RDY for
* up to 30 seconds. If the port doesn't respond, treat
* it as an error.
*/
for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
if (lpfc_readl(phba->sli4_hba.u.if_type2.
STATUSregaddr, ®_data.word0)) {
rc = -ENODEV;
goto out;
}
if (bf_get(lpfc_sliport_status_rdy, ®_data))
break;
msleep(20);
}
if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
phba->work_status[0] = readl(
phba->sli4_hba.u.if_type2.ERR1regaddr);
phba->work_status[1] = readl(
phba->sli4_hba.u.if_type2.ERR2regaddr);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2890 Port not ready, port status reg "
"0x%x error 1=0x%x, error 2=0x%x\n",
reg_data.word0,
phba->work_status[0],
phba->work_status[1]);
rc = -ENODEV;
goto out;
}
if (bf_get(lpfc_sliport_status_pldv, ®_data))
lpfc_pldv_detect = true;
if (!port_reset) {
/*
* Reset the port now
*/
reg_data.word0 = 0;
bf_set(lpfc_sliport_ctrl_end, ®_data,
LPFC_SLIPORT_LITTLE_ENDIAN);
bf_set(lpfc_sliport_ctrl_ip, ®_data,
LPFC_SLIPORT_INIT_PORT);
writel(reg_data.word0, phba->sli4_hba.u.if_type2.
CTRLregaddr);
/* flush */
pci_read_config_word(phba->pcidev,
PCI_DEVICE_ID, &devid);
port_reset = 1;
msleep(20);
goto wait;
} else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
rc = -ENODEV;
goto out;
}
break;
case LPFC_SLI_INTF_IF_TYPE_1:
default:
break;
}
out:
/* Catch the not-ready port failure after a port reset. */
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3317 HBA not functional: IP Reset Failed "
"try: echo fw_reset > board_mode\n");
rc = -ENODEV;
}
return rc;
}
/**
* lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to set up the PCI device memory space for device
* with SLI-4 interface spec.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
{
struct pci_dev *pdev = phba->pcidev;
unsigned long bar0map_len, bar1map_len, bar2map_len;
int error;
uint32_t if_type;
if (!pdev)
return -ENODEV;
/* Set the device DMA mask size */
error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (error)
error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (error)
return error;
/*
* The BARs and register set definitions and offset locations are
* dependent on the if_type.
*/
if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
&phba->sli4_hba.sli_intf.word0)) {
return -ENODEV;
}
/* There is no SLI3 failback for SLI4 devices. */
if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
LPFC_SLI_INTF_VALID) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2894 SLI_INTF reg contents invalid "
"sli_intf reg 0x%x\n",
phba->sli4_hba.sli_intf.word0);
return -ENODEV;
}
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
/*
* Get the bus address of SLI4 device Bar regions and the
* number of bytes required by each mapping. The mapping of the
* particular PCI BARs regions is dependent on the type of
* SLI4 device.
*/
if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
/*
* Map SLI4 PCI Config Space Register base to a kernel virtual
* addr
*/
phba->sli4_hba.conf_regs_memmap_p =
ioremap(phba->pci_bar0_map, bar0map_len);
if (!phba->sli4_hba.conf_regs_memmap_p) {
dev_printk(KERN_ERR, &pdev->dev,
"ioremap failed for SLI4 PCI config "
"registers.\n");
return -ENODEV;
}
phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
/* Set up BAR0 PCI config space register memory map */
lpfc_sli4_bar0_register_memmap(phba, if_type);
} else {
phba->pci_bar0_map = pci_resource_start(pdev, 1);
bar0map_len = pci_resource_len(pdev, 1);
if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
dev_printk(KERN_ERR, &pdev->dev,
"FATAL - No BAR0 mapping for SLI4, if_type 2\n");
return -ENODEV;
}
phba->sli4_hba.conf_regs_memmap_p =
ioremap(phba->pci_bar0_map, bar0map_len);
if (!phba->sli4_hba.conf_regs_memmap_p) {
dev_printk(KERN_ERR, &pdev->dev,
"ioremap failed for SLI4 PCI config "
"registers.\n");
return -ENODEV;
}
lpfc_sli4_bar0_register_memmap(phba, if_type);
}
if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
/*
* Map SLI4 if type 0 HBA Control Register base to a
* kernel virtual address and setup the registers.
*/
phba->pci_bar1_map = pci_resource_start(pdev,
PCI_64BIT_BAR2);
bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
phba->sli4_hba.ctrl_regs_memmap_p =
ioremap(phba->pci_bar1_map,
bar1map_len);
if (!phba->sli4_hba.ctrl_regs_memmap_p) {
dev_err(&pdev->dev,
"ioremap failed for SLI4 HBA "
"control registers.\n");
error = -ENOMEM;
goto out_iounmap_conf;
}
phba->pci_bar2_memmap_p =
phba->sli4_hba.ctrl_regs_memmap_p;
lpfc_sli4_bar1_register_memmap(phba, if_type);
} else {
error = -ENOMEM;
goto out_iounmap_conf;
}
}
if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
(pci_resource_start(pdev, PCI_64BIT_BAR2))) {
/*
* Map SLI4 if type 6 HBA Doorbell Register base to a kernel
* virtual address and setup the registers.
*/
phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
phba->sli4_hba.drbl_regs_memmap_p =
ioremap(phba->pci_bar1_map, bar1map_len);
if (!phba->sli4_hba.drbl_regs_memmap_p) {
dev_err(&pdev->dev,
"ioremap failed for SLI4 HBA doorbell registers.\n");
error = -ENOMEM;
goto out_iounmap_conf;
}
phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
lpfc_sli4_bar1_register_memmap(phba, if_type);
}
if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
/*
* Map SLI4 if type 0 HBA Doorbell Register base to
* a kernel virtual address and setup the registers.
*/
phba->pci_bar2_map = pci_resource_start(pdev,
PCI_64BIT_BAR4);
bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
phba->sli4_hba.drbl_regs_memmap_p =
ioremap(phba->pci_bar2_map,
bar2map_len);
if (!phba->sli4_hba.drbl_regs_memmap_p) {
dev_err(&pdev->dev,
"ioremap failed for SLI4 HBA"
" doorbell registers.\n");
error = -ENOMEM;
goto out_iounmap_ctrl;
}
phba->pci_bar4_memmap_p =
phba->sli4_hba.drbl_regs_memmap_p;
error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
if (error)
goto out_iounmap_all;
} else {
error = -ENOMEM;
goto out_iounmap_ctrl;
}
}
if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
pci_resource_start(pdev, PCI_64BIT_BAR4)) {
/*
* Map SLI4 if type 6 HBA DPP Register base to a kernel
* virtual address and setup the registers.
*/
phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
phba->sli4_hba.dpp_regs_memmap_p =
ioremap(phba->pci_bar2_map, bar2map_len);
if (!phba->sli4_hba.dpp_regs_memmap_p) {
dev_err(&pdev->dev,
"ioremap failed for SLI4 HBA dpp registers.\n");
error = -ENOMEM;
goto out_iounmap_all;
}
phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
}
/* Set up the EQ/CQ register handeling functions now */
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
case LPFC_SLI_INTF_IF_TYPE_2:
phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
break;
case LPFC_SLI_INTF_IF_TYPE_6:
phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
break;
default:
break;
}
return 0;
out_iounmap_all:
if (phba->sli4_hba.drbl_regs_memmap_p)
iounmap(phba->sli4_hba.drbl_regs_memmap_p);
out_iounmap_ctrl:
if (phba->sli4_hba.ctrl_regs_memmap_p)
iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
out_iounmap_conf:
iounmap(phba->sli4_hba.conf_regs_memmap_p);
return error;
}
/**
* lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unset the PCI device memory space for device
* with SLI-4 interface spec.
**/
static void
lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
{
uint32_t if_type;
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
switch (if_type) {
case LPFC_SLI_INTF_IF_TYPE_0:
iounmap(phba->sli4_hba.drbl_regs_memmap_p);
iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
iounmap(phba->sli4_hba.conf_regs_memmap_p);
break;
case LPFC_SLI_INTF_IF_TYPE_2:
iounmap(phba->sli4_hba.conf_regs_memmap_p);
break;
case LPFC_SLI_INTF_IF_TYPE_6:
iounmap(phba->sli4_hba.drbl_regs_memmap_p);
iounmap(phba->sli4_hba.conf_regs_memmap_p);
if (phba->sli4_hba.dpp_regs_memmap_p)
iounmap(phba->sli4_hba.dpp_regs_memmap_p);
break;
case LPFC_SLI_INTF_IF_TYPE_1:
break;
default:
dev_printk(KERN_ERR, &phba->pcidev->dev,
"FATAL - unsupported SLI4 interface type - %d\n",
if_type);
break;
}
}
/**
* lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to enable the MSI-X interrupt vectors to device
* with SLI-3 interface specs.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_sli_enable_msix(struct lpfc_hba *phba)
{
int rc;
LPFC_MBOXQ_t *pmb;
/* Set up MSI-X multi-message vectors */
rc = pci_alloc_irq_vectors(phba->pcidev,
LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
if (rc < 0) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0420 PCI enable MSI-X failed (%d)\n", rc);
goto vec_fail_out;
}
/*
* Assign MSI-X vectors to interrupt handlers
*/
/* vector-0 is associated to slow-path handler */
rc = request_irq(pci_irq_vector(phba->pcidev, 0),
&lpfc_sli_sp_intr_handler, 0,
LPFC_SP_DRIVER_HANDLER_NAME, phba);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0421 MSI-X slow-path request_irq failed "
"(%d)\n", rc);
goto msi_fail_out;
}
/* vector-1 is associated to fast-path handler */
rc = request_irq(pci_irq_vector(phba->pcidev, 1),
&lpfc_sli_fp_intr_handler, 0,
LPFC_FP_DRIVER_HANDLER_NAME, phba);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0429 MSI-X fast-path request_irq failed "
"(%d)\n", rc);
goto irq_fail_out;
}
/*
* Configure HBA MSI-X attention conditions to messages
*/
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
rc = -ENOMEM;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0474 Unable to allocate memory for issuing "
"MBOX_CONFIG_MSI command\n");
goto mem_fail_out;
}
rc = lpfc_config_msi(phba, pmb);
if (rc)
goto mbx_fail_out;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"0351 Config MSI mailbox command failed, "
"mbxCmd x%x, mbxStatus x%x\n",
pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
goto mbx_fail_out;
}
/* Free memory allocated for mailbox command */
mempool_free(pmb, phba->mbox_mem_pool);
return rc;
mbx_fail_out:
/* Free memory allocated for mailbox command */
mempool_free(pmb, phba->mbox_mem_pool);
mem_fail_out:
/* free the irq already requested */
free_irq(pci_irq_vector(phba->pcidev, 1), phba);
irq_fail_out:
/* free the irq already requested */
free_irq(pci_irq_vector(phba->pcidev, 0), phba);
msi_fail_out:
/* Unconfigure MSI-X capability structure */
pci_free_irq_vectors(phba->pcidev);
vec_fail_out:
return rc;
}
/**
* lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to enable the MSI interrupt mode to device with
* SLI-3 interface spec. The kernel function pci_enable_msi() is called to
* enable the MSI vector. The device driver is responsible for calling the
* request_irq() to register MSI vector with a interrupt the handler, which
* is done in this function.
*
* Return codes
* 0 - successful
* other values - error
*/
static int
lpfc_sli_enable_msi(struct lpfc_hba *phba)
{
int rc;
rc = pci_enable_msi(phba->pcidev);
if (!rc)
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0012 PCI enable MSI mode success.\n");
else {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0471 PCI enable MSI mode failed (%d)\n", rc);
return rc;
}
rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
0, LPFC_DRIVER_NAME, phba);
if (rc) {
pci_disable_msi(phba->pcidev);
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0478 MSI request_irq failed (%d)\n", rc);
}
return rc;
}
/**
* lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
* @phba: pointer to lpfc hba data structure.
* @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
*
* This routine is invoked to enable device interrupt and associate driver's
* interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
* spec. Depends on the interrupt mode configured to the driver, the driver
* will try to fallback from the configured interrupt mode to an interrupt
* mode which is supported by the platform, kernel, and device in the order
* of:
* MSI-X -> MSI -> IRQ.
*
* Return codes
* 0 - successful
* other values - error
**/
static uint32_t
lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
{
uint32_t intr_mode = LPFC_INTR_ERROR;
int retval;
/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
if (retval)
return intr_mode;
phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
if (cfg_mode == 2) {
/* Now, try to enable MSI-X interrupt mode */
retval = lpfc_sli_enable_msix(phba);
if (!retval) {
/* Indicate initialization to MSI-X mode */
phba->intr_type = MSIX;
intr_mode = 2;
}
}
/* Fallback to MSI if MSI-X initialization failed */
if (cfg_mode >= 1 && phba->intr_type == NONE) {
retval = lpfc_sli_enable_msi(phba);
if (!retval) {
/* Indicate initialization to MSI mode */
phba->intr_type = MSI;
intr_mode = 1;
}
}
/* Fallback to INTx if both MSI-X/MSI initalization failed */
if (phba->intr_type == NONE) {
retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
IRQF_SHARED, LPFC_DRIVER_NAME, phba);
if (!retval) {
/* Indicate initialization to INTx mode */
phba->intr_type = INTx;
intr_mode = 0;
}
}
return intr_mode;
}
/**
* lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to disable device interrupt and disassociate the
* driver's interrupt handler(s) from interrupt vector(s) to device with
* SLI-3 interface spec. Depending on the interrupt mode, the driver will
* release the interrupt vector(s) for the message signaled interrupt.
**/
static void
lpfc_sli_disable_intr(struct lpfc_hba *phba)
{
int nr_irqs, i;
if (phba->intr_type == MSIX)
nr_irqs = LPFC_MSIX_VECTORS;
else
nr_irqs = 1;
for (i = 0; i < nr_irqs; i++)
free_irq(pci_irq_vector(phba->pcidev, i), phba);
pci_free_irq_vectors(phba->pcidev);
/* Reset interrupt management states */
phba->intr_type = NONE;
phba->sli.slistat.sli_intr = 0;
}
/**
* lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
* @phba: pointer to lpfc hba data structure.
* @id: EQ vector index or Hardware Queue index
* @match: LPFC_FIND_BY_EQ = match by EQ
* LPFC_FIND_BY_HDWQ = match by Hardware Queue
* Return the CPU that matches the selection criteria
*/
static uint16_t
lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
{
struct lpfc_vector_map_info *cpup;
int cpu;
/* Loop through all CPUs */
for_each_present_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
/* If we are matching by EQ, there may be multiple CPUs using
* using the same vector, so select the one with
* LPFC_CPU_FIRST_IRQ set.
*/
if ((match == LPFC_FIND_BY_EQ) &&
(cpup->flag & LPFC_CPU_FIRST_IRQ) &&
(cpup->eq == id))
return cpu;
/* If matching by HDWQ, select the first CPU that matches */
if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
return cpu;
}
return 0;
}
#ifdef CONFIG_X86
/**
* lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
* @phba: pointer to lpfc hba data structure.
* @cpu: CPU map index
* @phys_id: CPU package physical id
* @core_id: CPU core id
*/
static int
lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
uint16_t phys_id, uint16_t core_id)
{
struct lpfc_vector_map_info *cpup;
int idx;
for_each_present_cpu(idx) {
cpup = &phba->sli4_hba.cpu_map[idx];
/* Does the cpup match the one we are looking for */
if ((cpup->phys_id == phys_id) &&
(cpup->core_id == core_id) &&
(cpu != idx))
return 1;
}
return 0;
}
#endif
/*
* lpfc_assign_eq_map_info - Assigns eq for vector_map structure
* @phba: pointer to lpfc hba data structure.
* @eqidx: index for eq and irq vector
* @flag: flags to set for vector_map structure
* @cpu: cpu used to index vector_map structure
*
* The routine assigns eq info into vector_map structure
*/
static inline void
lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
unsigned int cpu)
{
struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
cpup->eq = eqidx;
cpup->flag |= flag;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
cpu, eqhdl->irq, cpup->eq, cpup->flag);
}
/**
* lpfc_cpu_map_array_init - Initialize cpu_map structure
* @phba: pointer to lpfc hba data structure.
*
* The routine initializes the cpu_map array structure
*/
static void
lpfc_cpu_map_array_init(struct lpfc_hba *phba)
{
struct lpfc_vector_map_info *cpup;
struct lpfc_eq_intr_info *eqi;
int cpu;
for_each_possible_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
cpup->eq = LPFC_VECTOR_MAP_EMPTY;
cpup->flag = 0;
eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
INIT_LIST_HEAD(&eqi->list);
eqi->icnt = 0;
}
}
/**
* lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
* @phba: pointer to lpfc hba data structure.
*
* The routine initializes the hba_eq_hdl array structure
*/
static void
lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
{
struct lpfc_hba_eq_hdl *eqhdl;
int i;
for (i = 0; i < phba->cfg_irq_chann; i++) {
eqhdl = lpfc_get_eq_hdl(i);
eqhdl->irq = LPFC_IRQ_EMPTY;
eqhdl->phba = phba;
}
}
/**
* lpfc_cpu_affinity_check - Check vector CPU affinity mappings
* @phba: pointer to lpfc hba data structure.
* @vectors: number of msix vectors allocated.
*
* The routine will figure out the CPU affinity assignment for every
* MSI-X vector allocated for the HBA.
* In addition, the CPU to IO channel mapping will be calculated
* and the phba->sli4_hba.cpu_map array will reflect this.
*/
static void
lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
{
int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
int max_phys_id, min_phys_id;
int max_core_id, min_core_id;
struct lpfc_vector_map_info *cpup;
struct lpfc_vector_map_info *new_cpup;
#ifdef CONFIG_X86
struct cpuinfo_x86 *cpuinfo;
#endif
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_hdwq_stat *c_stat;
#endif
max_phys_id = 0;
min_phys_id = LPFC_VECTOR_MAP_EMPTY;
max_core_id = 0;
min_core_id = LPFC_VECTOR_MAP_EMPTY;
/* Update CPU map with physical id and core id of each CPU */
for_each_present_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
#ifdef CONFIG_X86
cpuinfo = &cpu_data(cpu);
cpup->phys_id = cpuinfo->phys_proc_id;
cpup->core_id = cpuinfo->cpu_core_id;
if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
cpup->flag |= LPFC_CPU_MAP_HYPER;
#else
/* No distinction between CPUs for other platforms */
cpup->phys_id = 0;
cpup->core_id = cpu;
#endif
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3328 CPU %d physid %d coreid %d flag x%x\n",
cpu, cpup->phys_id, cpup->core_id, cpup->flag);
if (cpup->phys_id > max_phys_id)
max_phys_id = cpup->phys_id;
if (cpup->phys_id < min_phys_id)
min_phys_id = cpup->phys_id;
if (cpup->core_id > max_core_id)
max_core_id = cpup->core_id;
if (cpup->core_id < min_core_id)
min_core_id = cpup->core_id;
}
/* After looking at each irq vector assigned to this pcidev, its
* possible to see that not ALL CPUs have been accounted for.
* Next we will set any unassigned (unaffinitized) cpu map
* entries to a IRQ on the same phys_id.
*/
first_cpu = cpumask_first(cpu_present_mask);
start_cpu = first_cpu;
for_each_present_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
/* Is this CPU entry unassigned */
if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
/* Mark CPU as IRQ not assigned by the kernel */
cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
/* If so, find a new_cpup that is on the SAME
* phys_id as cpup. start_cpu will start where we
* left off so all unassigned entries don't get assgined
* the IRQ of the first entry.
*/
new_cpu = start_cpu;
for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
(new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
(new_cpup->phys_id == cpup->phys_id))
goto found_same;
new_cpu = lpfc_next_present_cpu(new_cpu);
}
/* At this point, we leave the CPU as unassigned */
continue;
found_same:
/* We found a matching phys_id, so copy the IRQ info */
cpup->eq = new_cpup->eq;
/* Bump start_cpu to the next slot to minmize the
* chance of having multiple unassigned CPU entries
* selecting the same IRQ.
*/
start_cpu = lpfc_next_present_cpu(new_cpu);
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3337 Set Affinity: CPU %d "
"eq %d from peer cpu %d same "
"phys_id (%d)\n",
cpu, cpup->eq, new_cpu,
cpup->phys_id);
}
}
/* Set any unassigned cpu map entries to a IRQ on any phys_id */
start_cpu = first_cpu;
for_each_present_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
/* Is this entry unassigned */
if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
/* Mark it as IRQ not assigned by the kernel */
cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
/* If so, find a new_cpup thats on ANY phys_id
* as the cpup. start_cpu will start where we
* left off so all unassigned entries don't get
* assigned the IRQ of the first entry.
*/
new_cpu = start_cpu;
for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
(new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
goto found_any;
new_cpu = lpfc_next_present_cpu(new_cpu);
}
/* We should never leave an entry unassigned */
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3339 Set Affinity: CPU %d "
"eq %d UNASSIGNED\n",
cpup->hdwq, cpup->eq);
continue;
found_any:
/* We found an available entry, copy the IRQ info */
cpup->eq = new_cpup->eq;
/* Bump start_cpu to the next slot to minmize the
* chance of having multiple unassigned CPU entries
* selecting the same IRQ.
*/
start_cpu = lpfc_next_present_cpu(new_cpu);
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3338 Set Affinity: CPU %d "
"eq %d from peer cpu %d (%d/%d)\n",
cpu, cpup->eq, new_cpu,
new_cpup->phys_id, new_cpup->core_id);
}
}
/* Assign hdwq indices that are unique across all cpus in the map
* that are also FIRST_CPUs.
*/
idx = 0;
for_each_present_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
/* Only FIRST IRQs get a hdwq index assignment. */
if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
continue;
/* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
cpup->hdwq = idx;
idx++;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3333 Set Affinity: CPU %d (phys %d core %d): "
"hdwq %d eq %d flg x%x\n",
cpu, cpup->phys_id, cpup->core_id,
cpup->hdwq, cpup->eq, cpup->flag);
}
/* Associate a hdwq with each cpu_map entry
* This will be 1 to 1 - hdwq to cpu, unless there are less
* hardware queues then CPUs. For that case we will just round-robin
* the available hardware queues as they get assigned to CPUs.
* The next_idx is the idx from the FIRST_CPU loop above to account
* for irq_chann < hdwq. The idx is used for round-robin assignments
* and needs to start at 0.
*/
next_idx = idx;
start_cpu = 0;
idx = 0;
for_each_present_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
/* FIRST cpus are already mapped. */
if (cpup->flag & LPFC_CPU_FIRST_IRQ)
continue;
/* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
* of the unassigned cpus to the next idx so that all
* hdw queues are fully utilized.
*/
if (next_idx < phba->cfg_hdw_queue) {
cpup->hdwq = next_idx;
next_idx++;
continue;
}
/* Not a First CPU and all hdw_queues are used. Reuse a
* Hardware Queue for another CPU, so be smart about it
* and pick one that has its IRQ/EQ mapped to the same phys_id
* (CPU package) and core_id.
*/
new_cpu = start_cpu;
for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
new_cpup->phys_id == cpup->phys_id &&
new_cpup->core_id == cpup->core_id) {
goto found_hdwq;
}
new_cpu = lpfc_next_present_cpu(new_cpu);
}
/* If we can't match both phys_id and core_id,
* settle for just a phys_id match.
*/
new_cpu = start_cpu;
for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
new_cpup->phys_id == cpup->phys_id)
goto found_hdwq;
new_cpu = lpfc_next_present_cpu(new_cpu);
}
/* Otherwise just round robin on cfg_hdw_queue */
cpup->hdwq = idx % phba->cfg_hdw_queue;
idx++;
goto logit;
found_hdwq:
/* We found an available entry, copy the IRQ info */
start_cpu = lpfc_next_present_cpu(new_cpu);
cpup->hdwq = new_cpup->hdwq;
logit:
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3335 Set Affinity: CPU %d (phys %d core %d): "
"hdwq %d eq %d flg x%x\n",
cpu, cpup->phys_id, cpup->core_id,
cpup->hdwq, cpup->eq, cpup->flag);
}
/*
* Initialize the cpu_map slots for not-present cpus in case
* a cpu is hot-added. Perform a simple hdwq round robin assignment.
*/
idx = 0;
for_each_possible_cpu(cpu) {
cpup = &phba->sli4_hba.cpu_map[cpu];
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
c_stat->hdwq_no = cpup->hdwq;
#endif
if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
continue;
cpup->hdwq = idx++ % phba->cfg_hdw_queue;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
c_stat->hdwq_no = cpup->hdwq;
#endif
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3340 Set Affinity: not present "
"CPU %d hdwq %d\n",
cpu, cpup->hdwq);
}
/* The cpu_map array will be used later during initialization
* when EQ / CQ / WQs are allocated and configured.
*/
return;
}
/**
* lpfc_cpuhp_get_eq
*
* @phba: pointer to lpfc hba data structure.
* @cpu: cpu going offline
* @eqlist: eq list to append to
*/
static int
lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
struct list_head *eqlist)
{
const struct cpumask *maskp;
struct lpfc_queue *eq;
struct cpumask *tmp;
u16 idx;
tmp = kzalloc(cpumask_size(), GFP_KERNEL);
if (!tmp)
return -ENOMEM;
for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
maskp = pci_irq_get_affinity(phba->pcidev, idx);
if (!maskp)
continue;
/*
* if irq is not affinitized to the cpu going
* then we don't need to poll the eq attached
* to it.
*/
if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
continue;
/* get the cpus that are online and are affini-
* tized to this irq vector. If the count is
* more than 1 then cpuhp is not going to shut-
* down this vector. Since this cpu has not
* gone offline yet, we need >1.
*/
cpumask_and(tmp, maskp, cpu_online_mask);
if (cpumask_weight(tmp) > 1)
continue;
/* Now that we have an irq to shutdown, get the eq
* mapped to this irq. Note: multiple hdwq's in
* the software can share an eq, but eventually
* only eq will be mapped to this vector
*/
eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
list_add(&eq->_poll_list, eqlist);
}
kfree(tmp);
return 0;
}
static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
{
if (phba->sli_rev != LPFC_SLI_REV4)
return;
cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
&phba->cpuhp);
/*
* unregistering the instance doesn't stop the polling
* timer. Wait for the poll timer to retire.
*/
synchronize_rcu();
del_timer_sync(&phba->cpuhp_poll_timer);
}
static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
{
if (phba->pport && (phba->pport->fc_flag & FC_OFFLINE_MODE))
return;
__lpfc_cpuhp_remove(phba);
}
static void lpfc_cpuhp_add(struct lpfc_hba *phba)
{
if (phba->sli_rev != LPFC_SLI_REV4)
return;
rcu_read_lock();
if (!list_empty(&phba->poll_list))
mod_timer(&phba->cpuhp_poll_timer,
jiffies + msecs_to_jiffies(LPFC_POLL_HB));
rcu_read_unlock();
cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
&phba->cpuhp);
}
static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
{
if (phba->pport->load_flag & FC_UNLOADING) {
*retval = -EAGAIN;
return true;
}
if (phba->sli_rev != LPFC_SLI_REV4) {
*retval = 0;
return true;
}
/* proceed with the hotplug */
return false;
}
/**
* lpfc_irq_set_aff - set IRQ affinity
* @eqhdl: EQ handle
* @cpu: cpu to set affinity
*
**/
static inline void
lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
{
cpumask_clear(&eqhdl->aff_mask);
cpumask_set_cpu(cpu, &eqhdl->aff_mask);
irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
irq_set_affinity(eqhdl->irq, &eqhdl->aff_mask);
}
/**
* lpfc_irq_clear_aff - clear IRQ affinity
* @eqhdl: EQ handle
*
**/
static inline void
lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
{
cpumask_clear(&eqhdl->aff_mask);
irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
}
/**
* lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
* @phba: pointer to HBA context object.
* @cpu: cpu going offline/online
* @offline: true, cpu is going offline. false, cpu is coming online.
*
* If cpu is going offline, we'll try our best effort to find the next
* online cpu on the phba's original_mask and migrate all offlining IRQ
* affinities.
*
* If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
*
* Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
* PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
*
**/
static void
lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
{
struct lpfc_vector_map_info *cpup;
struct cpumask *aff_mask;
unsigned int cpu_select, cpu_next, idx;
const struct cpumask *orig_mask;
if (phba->irq_chann_mode == NORMAL_MODE)
return;
orig_mask = &phba->sli4_hba.irq_aff_mask;
if (!cpumask_test_cpu(cpu, orig_mask))
return;
cpup = &phba->sli4_hba.cpu_map[cpu];
if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
return;
if (offline) {
/* Find next online CPU on original mask */
cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
/* Found a valid CPU */
if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
/* Go through each eqhdl and ensure offlining
* cpu aff_mask is migrated
*/
for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
aff_mask = lpfc_get_aff_mask(idx);
/* Migrate affinity */
if (cpumask_test_cpu(cpu, aff_mask))
lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
cpu_select);
}
} else {
/* Rely on irqbalance if no online CPUs left on NUMA */
for (idx = 0; idx < phba->cfg_irq_chann; idx++)
lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
}
} else {
/* Migrate affinity back to this CPU */
lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
}
}
static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
{
struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
struct lpfc_queue *eq, *next;
LIST_HEAD(eqlist);
int retval;
if (!phba) {
WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
return 0;
}
if (__lpfc_cpuhp_checks(phba, &retval))
return retval;
lpfc_irq_rebalance(phba, cpu, true);
retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
if (retval)
return retval;
/* start polling on these eq's */
list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
list_del_init(&eq->_poll_list);
lpfc_sli4_start_polling(eq);
}
return 0;
}
static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
{
struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
struct lpfc_queue *eq, *next;
unsigned int n;
int retval;
if (!phba) {
WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
return 0;
}
if (__lpfc_cpuhp_checks(phba, &retval))
return retval;
lpfc_irq_rebalance(phba, cpu, false);
list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
if (n == cpu)
lpfc_sli4_stop_polling(eq);
}
return 0;
}
/**
* lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to enable the MSI-X interrupt vectors to device
* with SLI-4 interface spec. It also allocates MSI-X vectors and maps them
* to cpus on the system.
*
* When cfg_irq_numa is enabled, the adapter will only allocate vectors for
* the number of cpus on the same numa node as this adapter. The vectors are
* allocated without requesting OS affinity mapping. A vector will be
* allocated and assigned to each online and offline cpu. If the cpu is
* online, then affinity will be set to that cpu. If the cpu is offline, then
* affinity will be set to the nearest peer cpu within the numa node that is
* online. If there are no online cpus within the numa node, affinity is not
* assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
* is consistent with the way cpu online/offline is handled when cfg_irq_numa is
* configured.
*
* If numa mode is not enabled and there is more than 1 vector allocated, then
* the driver relies on the managed irq interface where the OS assigns vector to
* cpu affinity. The driver will then use that affinity mapping to setup its
* cpu mapping table.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_sli4_enable_msix(struct lpfc_hba *phba)
{
int vectors, rc, index;
char *name;
const struct cpumask *aff_mask = NULL;
unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
struct lpfc_vector_map_info *cpup;
struct lpfc_hba_eq_hdl *eqhdl;
const struct cpumask *maskp;
unsigned int flags = PCI_IRQ_MSIX;
/* Set up MSI-X multi-message vectors */
vectors = phba->cfg_irq_chann;
if (phba->irq_chann_mode != NORMAL_MODE)
aff_mask = &phba->sli4_hba.irq_aff_mask;
if (aff_mask) {
cpu_cnt = cpumask_weight(aff_mask);
vectors = min(phba->cfg_irq_chann, cpu_cnt);
/* cpu: iterates over aff_mask including offline or online
* cpu_select: iterates over online aff_mask to set affinity
*/
cpu = cpumask_first(aff_mask);
cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
} else {
flags |= PCI_IRQ_AFFINITY;
}
rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
if (rc < 0) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0484 PCI enable MSI-X failed (%d)\n", rc);
goto vec_fail_out;
}
vectors = rc;
/* Assign MSI-X vectors to interrupt handlers */
for (index = 0; index < vectors; index++) {
eqhdl = lpfc_get_eq_hdl(index);
name = eqhdl->handler_name;
memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
LPFC_DRIVER_HANDLER_NAME"%d", index);
eqhdl->idx = index;
rc = pci_irq_vector(phba->pcidev, index);
if (rc < 0) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0489 MSI-X fast-path (%d) "
"pci_irq_vec failed (%d)\n", index, rc);
goto cfg_fail_out;
}
eqhdl->irq = rc;
rc = request_threaded_irq(eqhdl->irq,
&lpfc_sli4_hba_intr_handler,
&lpfc_sli4_hba_intr_handler_th,
IRQF_ONESHOT, name, eqhdl);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0486 MSI-X fast-path (%d) "
"request_irq failed (%d)\n", index, rc);
goto cfg_fail_out;
}
if (aff_mask) {
/* If found a neighboring online cpu, set affinity */
if (cpu_select < nr_cpu_ids)
lpfc_irq_set_aff(eqhdl, cpu_select);
/* Assign EQ to cpu_map */
lpfc_assign_eq_map_info(phba, index,
LPFC_CPU_FIRST_IRQ,
cpu);
/* Iterate to next offline or online cpu in aff_mask */
cpu = cpumask_next(cpu, aff_mask);
/* Find next online cpu in aff_mask to set affinity */
cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
} else if (vectors == 1) {
cpu = cpumask_first(cpu_present_mask);
lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
cpu);
} else {
maskp = pci_irq_get_affinity(phba->pcidev, index);
/* Loop through all CPUs associated with vector index */
for_each_cpu_and(cpu, maskp, cpu_present_mask) {
cpup = &phba->sli4_hba.cpu_map[cpu];
/* If this is the first CPU thats assigned to
* this vector, set LPFC_CPU_FIRST_IRQ.
*
* With certain platforms its possible that irq
* vectors are affinitized to all the cpu's.
* This can result in each cpu_map.eq to be set
* to the last vector, resulting in overwrite
* of all the previous cpu_map.eq. Ensure that
* each vector receives a place in cpu_map.
* Later call to lpfc_cpu_affinity_check will
* ensure we are nicely balanced out.
*/
if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
continue;
lpfc_assign_eq_map_info(phba, index,
LPFC_CPU_FIRST_IRQ,
cpu);
break;
}
}
}
if (vectors != phba->cfg_irq_chann) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3238 Reducing IO channels to match number of "
"MSI-X vectors, requested %d got %d\n",
phba->cfg_irq_chann, vectors);
if (phba->cfg_irq_chann > vectors)
phba->cfg_irq_chann = vectors;
}
return rc;
cfg_fail_out:
/* free the irq already requested */
for (--index; index >= 0; index--) {
eqhdl = lpfc_get_eq_hdl(index);
lpfc_irq_clear_aff(eqhdl);
free_irq(eqhdl->irq, eqhdl);
}
/* Unconfigure MSI-X capability structure */
pci_free_irq_vectors(phba->pcidev);
vec_fail_out:
return rc;
}
/**
* lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to enable the MSI interrupt mode to device with
* SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
* called to enable the MSI vector. The device driver is responsible for
* calling the request_irq() to register MSI vector with a interrupt the
* handler, which is done in this function.
*
* Return codes
* 0 - successful
* other values - error
**/
static int
lpfc_sli4_enable_msi(struct lpfc_hba *phba)
{
int rc, index;
unsigned int cpu;
struct lpfc_hba_eq_hdl *eqhdl;
rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
if (rc > 0)
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0487 PCI enable MSI mode success.\n");
else {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0488 PCI enable MSI mode failed (%d)\n", rc);
return rc ? rc : -1;
}
rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
0, LPFC_DRIVER_NAME, phba);
if (rc) {
pci_free_irq_vectors(phba->pcidev);
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0490 MSI request_irq failed (%d)\n", rc);
return rc;
}
eqhdl = lpfc_get_eq_hdl(0);
rc = pci_irq_vector(phba->pcidev, 0);
if (rc < 0) {
pci_free_irq_vectors(phba->pcidev);
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0496 MSI pci_irq_vec failed (%d)\n", rc);
return rc;
}
eqhdl->irq = rc;
cpu = cpumask_first(cpu_present_mask);
lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
for (index = 0; index < phba->cfg_irq_chann; index++) {
eqhdl = lpfc_get_eq_hdl(index);
eqhdl->idx = index;
}
return 0;
}
/**
* lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
* @phba: pointer to lpfc hba data structure.
* @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
*
* This routine is invoked to enable device interrupt and associate driver's
* interrupt handler(s) to interrupt vector(s) to device with SLI-4
* interface spec. Depends on the interrupt mode configured to the driver,
* the driver will try to fallback from the configured interrupt mode to an
* interrupt mode which is supported by the platform, kernel, and device in
* the order of:
* MSI-X -> MSI -> IRQ.
*
* Return codes
* Interrupt mode (2, 1, 0) - successful
* LPFC_INTR_ERROR - error
**/
static uint32_t
lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
{
uint32_t intr_mode = LPFC_INTR_ERROR;
int retval, idx;
if (cfg_mode == 2) {
/* Preparation before conf_msi mbox cmd */
retval = 0;
if (!retval) {
/* Now, try to enable MSI-X interrupt mode */
retval = lpfc_sli4_enable_msix(phba);
if (!retval) {
/* Indicate initialization to MSI-X mode */
phba->intr_type = MSIX;
intr_mode = 2;
}
}
}
/* Fallback to MSI if MSI-X initialization failed */
if (cfg_mode >= 1 && phba->intr_type == NONE) {
retval = lpfc_sli4_enable_msi(phba);
if (!retval) {
/* Indicate initialization to MSI mode */
phba->intr_type = MSI;
intr_mode = 1;
}
}
/* Fallback to INTx if both MSI-X/MSI initalization failed */
if (phba->intr_type == NONE) {
retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
IRQF_SHARED, LPFC_DRIVER_NAME, phba);
if (!retval) {
struct lpfc_hba_eq_hdl *eqhdl;
unsigned int cpu;
/* Indicate initialization to INTx mode */
phba->intr_type = INTx;
intr_mode = 0;
eqhdl = lpfc_get_eq_hdl(0);
retval = pci_irq_vector(phba->pcidev, 0);
if (retval < 0) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0502 INTR pci_irq_vec failed (%d)\n",
retval);
return LPFC_INTR_ERROR;
}
eqhdl->irq = retval;
cpu = cpumask_first(cpu_present_mask);
lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
cpu);
for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
eqhdl = lpfc_get_eq_hdl(idx);
eqhdl->idx = idx;
}
}
}
return intr_mode;
}
/**
* lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to disable device interrupt and disassociate
* the driver's interrupt handler(s) from interrupt vector(s) to device
* with SLI-4 interface spec. Depending on the interrupt mode, the driver
* will release the interrupt vector(s) for the message signaled interrupt.
**/
static void
lpfc_sli4_disable_intr(struct lpfc_hba *phba)
{
/* Disable the currently initialized interrupt mode */
if (phba->intr_type == MSIX) {
int index;
struct lpfc_hba_eq_hdl *eqhdl;
/* Free up MSI-X multi-message vectors */
for (index = 0; index < phba->cfg_irq_chann; index++) {
eqhdl = lpfc_get_eq_hdl(index);
lpfc_irq_clear_aff(eqhdl);
free_irq(eqhdl->irq, eqhdl);
}
} else {
free_irq(phba->pcidev->irq, phba);
}
pci_free_irq_vectors(phba->pcidev);
/* Reset interrupt management states */
phba->intr_type = NONE;
phba->sli.slistat.sli_intr = 0;
}
/**
* lpfc_unset_hba - Unset SLI3 hba device initialization
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unset the HBA device initialization steps to
* a device with SLI-3 interface spec.
**/
static void
lpfc_unset_hba(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
vport->load_flag |= FC_UNLOADING;
spin_unlock_irq(shost->host_lock);
kfree(phba->vpi_bmask);
kfree(phba->vpi_ids);
lpfc_stop_hba_timers(phba);
phba->pport->work_port_events = 0;
lpfc_sli_hba_down(phba);
lpfc_sli_brdrestart(phba);
lpfc_sli_disable_intr(phba);
return;
}
/**
* lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
* @phba: Pointer to HBA context object.
*
* This function is called in the SLI4 code path to wait for completion
* of device's XRIs exchange busy. It will check the XRI exchange busy
* on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
* that, it will check the XRI exchange busy on outstanding FCP and ELS
* I/Os every 30 seconds, log error message, and wait forever. Only when
* all XRI exchange busy complete, the driver unload shall proceed with
* invoking the function reset ioctl mailbox command to the CNA and the
* the rest of the driver unload resource release.
**/
static void
lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
{
struct lpfc_sli4_hdw_queue *qp;
int idx, ccnt;
int wait_time = 0;
int io_xri_cmpl = 1;
int nvmet_xri_cmpl = 1;
int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
/* Driver just aborted IOs during the hba_unset process. Pause
* here to give the HBA time to complete the IO and get entries
* into the abts lists.
*/
msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
/* Wait for NVME pending IO to flush back to transport. */
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
lpfc_nvme_wait_for_io_drain(phba);
ccnt = 0;
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
qp = &phba->sli4_hba.hdwq[idx];
io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
if (!io_xri_cmpl) /* if list is NOT empty */
ccnt++;
}
if (ccnt)
io_xri_cmpl = 0;
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
nvmet_xri_cmpl =
list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
}
while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
if (!nvmet_xri_cmpl)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6424 NVMET XRI exchange busy "
"wait time: %d seconds.\n",
wait_time/1000);
if (!io_xri_cmpl)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6100 IO XRI exchange busy "
"wait time: %d seconds.\n",
wait_time/1000);
if (!els_xri_cmpl)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2878 ELS XRI exchange busy "
"wait time: %d seconds.\n",
wait_time/1000);
msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
} else {
msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
}
ccnt = 0;
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
qp = &phba->sli4_hba.hdwq[idx];
io_xri_cmpl = list_empty(
&qp->lpfc_abts_io_buf_list);
if (!io_xri_cmpl) /* if list is NOT empty */
ccnt++;
}
if (ccnt)
io_xri_cmpl = 0;
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
nvmet_xri_cmpl = list_empty(
&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
}
els_xri_cmpl =
list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
}
}
/**
* lpfc_sli4_hba_unset - Unset the fcoe hba
* @phba: Pointer to HBA context object.
*
* This function is called in the SLI4 code path to reset the HBA's FCoE
* function. The caller is not required to hold any lock. This routine
* issues PCI function reset mailbox command to reset the FCoE function.
* At the end of the function, it calls lpfc_hba_down_post function to
* free any pending commands.
**/
static void
lpfc_sli4_hba_unset(struct lpfc_hba *phba)
{
int wait_cnt = 0;
LPFC_MBOXQ_t *mboxq;
struct pci_dev *pdev = phba->pcidev;
lpfc_stop_hba_timers(phba);
hrtimer_cancel(&phba->cmf_stats_timer);
hrtimer_cancel(&phba->cmf_timer);
if (phba->pport)
phba->sli4_hba.intr_enable = 0;
/*
* Gracefully wait out the potential current outstanding asynchronous
* mailbox command.
*/
/* First, block any pending async mailbox command from posted */
spin_lock_irq(&phba->hbalock);
phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
spin_unlock_irq(&phba->hbalock);
/* Now, trying to wait it out if we can */
while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
msleep(10);
if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
break;
}
/* Forcefully release the outstanding mailbox command if timed out */
if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
spin_lock_irq(&phba->hbalock);
mboxq = phba->sli.mbox_active;
mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
__lpfc_mbox_cmpl_put(phba, mboxq);
phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
phba->sli.mbox_active = NULL;
spin_unlock_irq(&phba->hbalock);
}
/* Abort all iocbs associated with the hba */
lpfc_sli_hba_iocb_abort(phba);
if (!pci_channel_offline(phba->pcidev))
/* Wait for completion of device XRI exchange busy */
lpfc_sli4_xri_exchange_busy_wait(phba);
/* per-phba callback de-registration for hotplug event */
if (phba->pport)
lpfc_cpuhp_remove(phba);
/* Disable PCI subsystem interrupt */
lpfc_sli4_disable_intr(phba);
/* Disable SR-IOV if enabled */
if (phba->cfg_sriov_nr_virtfn)
pci_disable_sriov(pdev);
/* Stop kthread signal shall trigger work_done one more time */
kthread_stop(phba->worker_thread);
/* Disable FW logging to host memory */
lpfc_ras_stop_fwlog(phba);
/* Reset SLI4 HBA FCoE function */
lpfc_pci_function_reset(phba);
/* release all queue allocated resources. */
lpfc_sli4_queue_destroy(phba);
/* Free RAS DMA memory */
if (phba->ras_fwlog.ras_enabled)
lpfc_sli4_ras_dma_free(phba);
/* Stop the SLI4 device port */
if (phba->pport)
phba->pport->work_port_events = 0;
}
static uint32_t
lpfc_cgn_crc32(uint32_t crc, u8 byte)
{
uint32_t msb = 0;
uint32_t bit;
for (bit = 0; bit < 8; bit++) {
msb = (crc >> 31) & 1;
crc <<= 1;
if (msb ^ (byte & 1)) {
crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
crc |= 1;
}
byte >>= 1;
}
return crc;
}
static uint32_t
lpfc_cgn_reverse_bits(uint32_t wd)
{
uint32_t result = 0;
uint32_t i;
for (i = 0; i < 32; i++) {
result <<= 1;
result |= (1 & (wd >> i));
}
return result;
}
/*
* The routine corresponds with the algorithm the HBA firmware
* uses to validate the data integrity.
*/
uint32_t
lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
{
uint32_t i;
uint32_t result;
uint8_t *data = (uint8_t *)ptr;
for (i = 0; i < byteLen; ++i)
crc = lpfc_cgn_crc32(crc, data[i]);
result = ~lpfc_cgn_reverse_bits(crc);
return result;
}
void
lpfc_init_congestion_buf(struct lpfc_hba *phba)
{
struct lpfc_cgn_info *cp;
uint16_t size;
uint32_t crc;
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6235 INIT Congestion Buffer %p\n", phba->cgn_i);
if (!phba->cgn_i)
return;
cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
atomic_set(&phba->cgn_fabric_warn_cnt, 0);
atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
atomic_set(&phba->cgn_sync_alarm_cnt, 0);
atomic_set(&phba->cgn_sync_warn_cnt, 0);
atomic_set(&phba->cgn_driver_evt_cnt, 0);
atomic_set(&phba->cgn_latency_evt_cnt, 0);
atomic64_set(&phba->cgn_latency_evt, 0);
phba->cgn_evt_minute = 0;
memset(cp, 0xff, offsetof(struct lpfc_cgn_info, cgn_stat));
cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
cp->cgn_info_version = LPFC_CGN_INFO_V4;
/* cgn parameters */
cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
lpfc_cgn_update_tstamp(phba, &cp->base_time);
/* Fill in default LUN qdepth */
if (phba->pport) {
size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
cp->cgn_lunq = cpu_to_le16(size);
}
/* last used Index initialized to 0xff already */
cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
cp->cgn_info_crc = cpu_to_le32(crc);
phba->cgn_evt_timestamp = jiffies +
msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
}
void
lpfc_init_congestion_stat(struct lpfc_hba *phba)
{
struct lpfc_cgn_info *cp;
uint32_t crc;
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"6236 INIT Congestion Stat %p\n", phba->cgn_i);
if (!phba->cgn_i)
return;
cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
memset(&cp->cgn_stat, 0, sizeof(cp->cgn_stat));
lpfc_cgn_update_tstamp(phba, &cp->stat_start);
crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
cp->cgn_info_crc = cpu_to_le32(crc);
}
/**
* __lpfc_reg_congestion_buf - register congestion info buffer with HBA
* @phba: Pointer to hba context object.
* @reg: flag to determine register or unregister.
*/
static int
__lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
{
struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t shdr_status, shdr_add_status;
LPFC_MBOXQ_t *mboxq;
int length, rc;
if (!phba->cgn_i)
return -ENXIO;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"2641 REG_CONGESTION_BUF mbox allocation fail: "
"HBA state x%x reg %d\n",
phba->pport->port_state, reg);
return -ENOMEM;
}
length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
LPFC_SLI4_MBX_EMBED);
reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
if (reg > 0)
bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
else
bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
reg_congestion_buf->addr_lo =
putPaddrLow(phba->cgn_i->phys);
reg_congestion_buf->addr_hi =
putPaddrHigh(phba->cgn_i->phys);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *)
&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
&shdr->response);
mempool_free(mboxq, phba->mbox_mem_pool);
if (shdr_status || shdr_add_status || rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2642 REG_CONGESTION_BUF mailbox "
"failed with status x%x add_status x%x,"
" mbx status x%x reg %d\n",
shdr_status, shdr_add_status, rc, reg);
return -ENXIO;
}
return 0;
}
int
lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
{
lpfc_cmf_stop(phba);
return __lpfc_reg_congestion_buf(phba, 0);
}
int
lpfc_reg_congestion_buf(struct lpfc_hba *phba)
{
return __lpfc_reg_congestion_buf(phba, 1);
}
/**
* lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
* @phba: Pointer to HBA context object.
* @mboxq: Pointer to the mailboxq memory for the mailbox command response.
*
* This function is called in the SLI4 code path to read the port's
* sli4 capabilities.
*
* This function may be be called from any context that can block-wait
* for the completion. The expectation is that this routine is called
* typically from probe_one or from the online routine.
**/
int
lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
int rc;
struct lpfc_mqe *mqe = &mboxq->u.mqe;
struct lpfc_pc_sli4_params *sli4_params;
uint32_t mbox_tmo;
int length;
bool exp_wqcq_pages = true;
struct lpfc_sli4_parameters *mbx_sli4_parameters;
/*
* By default, the driver assumes the SLI4 port requires RPI
* header postings. The SLI4_PARAM response will correct this
* assumption.
*/
phba->sli4_hba.rpi_hdrs_in_use = 1;
/* Read the port's SLI4 Config Parameters */
length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
length, LPFC_SLI4_MBX_EMBED);
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
else {
mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
}
if (unlikely(rc))
return rc;
sli4_params = &phba->sli4_hba.pc_sli4_params;
mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
mbx_sli4_parameters);
sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
mbx_sli4_parameters);
if (bf_get(cfg_phwq, mbx_sli4_parameters))
phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
else
phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
mbx_sli4_parameters);
sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
mbx_sli4_parameters);
sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
mbx_sli4_parameters);
phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
sli4_params->mi_cap = bf_get(cfg_mi_ver, mbx_sli4_parameters);
/* Check for Extended Pre-Registered SGL support */
phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
/* Check for firmware nvme support */
rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
bf_get(cfg_xib, mbx_sli4_parameters));
if (rc) {
/* Save this to indicate the Firmware supports NVME */
sli4_params->nvme = 1;
/* Firmware NVME support, check driver FC4 NVME support */
if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
"6133 Disabling NVME support: "
"FC4 type not supported: x%x\n",
phba->cfg_enable_fc4_type);
goto fcponly;
}
} else {
/* No firmware NVME support, check driver FC4 NVME support */
sli4_params->nvme = 0;
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
"6101 Disabling NVME support: Not "
"supported by firmware (%d %d) x%x\n",
bf_get(cfg_nvme, mbx_sli4_parameters),
bf_get(cfg_xib, mbx_sli4_parameters),
phba->cfg_enable_fc4_type);
fcponly:
phba->nvmet_support = 0;
phba->cfg_nvmet_mrq = 0;
phba->cfg_nvme_seg_cnt = 0;
/* If no FC4 type support, move to just SCSI support */
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
return -ENODEV;
phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
}
}
/* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
* accommodate 512K and 1M IOs in a single nvme buf.
*/
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
/* Enable embedded Payload BDE if support is indicated */
if (bf_get(cfg_pbde, mbx_sli4_parameters))
phba->cfg_enable_pbde = 1;
else
phba->cfg_enable_pbde = 0;
/*
* To support Suppress Response feature we must satisfy 3 conditions.
* lpfc_suppress_rsp module parameter must be set (default).
* In SLI4-Parameters Descriptor:
* Extended Inline Buffers (XIB) must be supported.
* Suppress Response IU Not Supported (SRIUNS) must NOT be supported
* (double negative).
*/
if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
!(bf_get(cfg_nosr, mbx_sli4_parameters)))
phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
else
phba->cfg_suppress_rsp = 0;
if (bf_get(cfg_eqdr, mbx_sli4_parameters))
phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
/* Make sure that sge_supp_len can be handled by the driver */
if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
rc = dma_set_max_seg_size(&phba->pcidev->dev, sli4_params->sge_supp_len);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"6400 Can't set dma maximum segment size\n");
return rc;
}
/*
* Check whether the adapter supports an embedded copy of the
* FCP CMD IU within the WQE for FCP_Ixxx commands. In order
* to use this option, 128-byte WQEs must be used.
*/
if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
phba->fcp_embed_io = 1;
else
phba->fcp_embed_io = 0;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
"6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
bf_get(cfg_xib, mbx_sli4_parameters),
phba->cfg_enable_pbde,
phba->fcp_embed_io, sli4_params->nvme,
phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_2) &&
(bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_FAMILY_LNCR_A0))
exp_wqcq_pages = false;
if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
(bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
exp_wqcq_pages &&
(sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
phba->enab_exp_wqcq_pages = 1;
else
phba->enab_exp_wqcq_pages = 0;
/*
* Check if the SLI port supports MDS Diagnostics
*/
if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
phba->mds_diags_support = 1;
else
phba->mds_diags_support = 0;
/*
* Check if the SLI port supports NSLER
*/
if (bf_get(cfg_nsler, mbx_sli4_parameters))
phba->nsler = 1;
else
phba->nsler = 0;
return 0;
}
/**
* lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
* @pdev: pointer to PCI device
* @pid: pointer to PCI device identifier
*
* This routine is to be called to attach a device with SLI-3 interface spec
* to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
* presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
* information of the device and driver to see if the driver state that it can
* support this kind of device. If the match is successful, the driver core
* invokes this routine. If this routine determines it can claim the HBA, it
* does all the initialization that it needs to do to handle the HBA properly.
*
* Return code
* 0 - driver can claim the device
* negative value - driver can not claim the device
**/
static int
lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
{
struct lpfc_hba *phba;
struct lpfc_vport *vport = NULL;
struct Scsi_Host *shost = NULL;
int error;
uint32_t cfg_mode, intr_mode;
/* Allocate memory for HBA structure */
phba = lpfc_hba_alloc(pdev);
if (!phba)
return -ENOMEM;
/* Perform generic PCI device enabling operation */
error = lpfc_enable_pci_dev(phba);
if (error)
goto out_free_phba;
/* Set up SLI API function jump table for PCI-device group-0 HBAs */
error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
if (error)
goto out_disable_pci_dev;
/* Set up SLI-3 specific device PCI memory space */
error = lpfc_sli_pci_mem_setup(phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1402 Failed to set up pci memory space.\n");
goto out_disable_pci_dev;
}
/* Set up SLI-3 specific device driver resources */
error = lpfc_sli_driver_resource_setup(phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1404 Failed to set up driver resource.\n");
goto out_unset_pci_mem_s3;
}
/* Initialize and populate the iocb list per host */
error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1405 Failed to initialize iocb list.\n");
goto out_unset_driver_resource_s3;
}
/* Set up common device driver resources */
error = lpfc_setup_driver_resource_phase2(phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1406 Failed to set up driver resource.\n");
goto out_free_iocb_list;
}
/* Get the default values for Model Name and Description */
lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
/* Create SCSI host to the physical port */
error = lpfc_create_shost(phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1407 Failed to create scsi host.\n");
goto out_unset_driver_resource;
}
/* Configure sysfs attributes */
vport = phba->pport;
error = lpfc_alloc_sysfs_attr(vport);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1476 Failed to allocate sysfs attr\n");
goto out_destroy_shost;
}
shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
/* Now, trying to enable interrupt and bring up the device */
cfg_mode = phba->cfg_use_msi;
while (true) {
/* Put device to a known state before enabling interrupt */
lpfc_stop_port(phba);
/* Configure and enable interrupt */
intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0431 Failed to enable interrupt.\n");
error = -ENODEV;
goto out_free_sysfs_attr;
}
/* SLI-3 HBA setup */
if (lpfc_sli_hba_setup(phba)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1477 Failed to set up hba\n");
error = -ENODEV;
goto out_remove_device;
}
/* Wait 50ms for the interrupts of previous mailbox commands */
msleep(50);
/* Check active interrupts on message signaled interrupts */
if (intr_mode == 0 ||
phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
/* Log the current active interrupt mode */
phba->intr_mode = intr_mode;
lpfc_log_intr_mode(phba, intr_mode);
break;
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0447 Configure interrupt mode (%d) "
"failed active interrupt test.\n",
intr_mode);
/* Disable the current interrupt mode */
lpfc_sli_disable_intr(phba);
/* Try next level of interrupt mode */
cfg_mode = --intr_mode;
}
}
/* Perform post initialization setup */
lpfc_post_init_setup(phba);
/* Check if there are static vports to be created. */
lpfc_create_static_vport(phba);
return 0;
out_remove_device:
lpfc_unset_hba(phba);
out_free_sysfs_attr:
lpfc_free_sysfs_attr(vport);
out_destroy_shost:
lpfc_destroy_shost(phba);
out_unset_driver_resource:
lpfc_unset_driver_resource_phase2(phba);
out_free_iocb_list:
lpfc_free_iocb_list(phba);
out_unset_driver_resource_s3:
lpfc_sli_driver_resource_unset(phba);
out_unset_pci_mem_s3:
lpfc_sli_pci_mem_unset(phba);
out_disable_pci_dev:
lpfc_disable_pci_dev(phba);
if (shost)
scsi_host_put(shost);
out_free_phba:
lpfc_hba_free(phba);
return error;
}
/**
* lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
* @pdev: pointer to PCI device
*
* This routine is to be called to disattach a device with SLI-3 interface
* spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
* removed from PCI bus, it performs all the necessary cleanup for the HBA
* device to be removed from the PCI subsystem properly.
**/
static void
lpfc_pci_remove_one_s3(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_vport **vports;
struct lpfc_hba *phba = vport->phba;
int i;
spin_lock_irq(&phba->hbalock);
vport->load_flag |= FC_UNLOADING;
spin_unlock_irq(&phba->hbalock);
lpfc_free_sysfs_attr(vport);
/* Release all the vports against this physical port */
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
continue;
fc_vport_terminate(vports[i]->fc_vport);
}
lpfc_destroy_vport_work_array(phba, vports);
/* Remove FC host with the physical port */
fc_remove_host(shost);
scsi_remove_host(shost);
/* Clean up all nodes, mailboxes and IOs. */
lpfc_cleanup(vport);
/*
* Bring down the SLI Layer. This step disable all interrupts,
* clears the rings, discards all mailbox commands, and resets
* the HBA.
*/
/* HBA interrupt will be disabled after this call */
lpfc_sli_hba_down(phba);
/* Stop kthread signal shall trigger work_done one more time */
kthread_stop(phba->worker_thread);
/* Final cleanup of txcmplq and reset the HBA */
lpfc_sli_brdrestart(phba);
kfree(phba->vpi_bmask);
kfree(phba->vpi_ids);
lpfc_stop_hba_timers(phba);
spin_lock_irq(&phba->port_list_lock);
list_del_init(&vport->listentry);
spin_unlock_irq(&phba->port_list_lock);
lpfc_debugfs_terminate(vport);
/* Disable SR-IOV if enabled */
if (phba->cfg_sriov_nr_virtfn)
pci_disable_sriov(pdev);
/* Disable interrupt */
lpfc_sli_disable_intr(phba);
scsi_host_put(shost);
/*
* Call scsi_free before mem_free since scsi bufs are released to their
* corresponding pools here.
*/
lpfc_scsi_free(phba);
lpfc_free_iocb_list(phba);
lpfc_mem_free_all(phba);
dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
phba->hbqslimp.virt, phba->hbqslimp.phys);
/* Free resources associated with SLI2 interface */
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
phba->slim2p.virt, phba->slim2p.phys);
/* unmap adapter SLIM and Control Registers */
iounmap(phba->ctrl_regs_memmap_p);
iounmap(phba->slim_memmap_p);
lpfc_hba_free(phba);
pci_release_mem_regions(pdev);
pci_disable_device(pdev);
}
/**
* lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
* @dev_d: pointer to device
*
* This routine is to be called from the kernel's PCI subsystem to support
* system Power Management (PM) to device with SLI-3 interface spec. When
* PM invokes this method, it quiesces the device by stopping the driver's
* worker thread for the device, turning off device's interrupt and DMA,
* and bring the device offline. Note that as the driver implements the
* minimum PM requirements to a power-aware driver's PM support for the
* suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
* to the suspend() method call will be treated as SUSPEND and the driver will
* fully reinitialize its device during resume() method call, the driver will
* set device to PCI_D3hot state in PCI config space instead of setting it
* according to the @msg provided by the PM.
*
* Return code
* 0 - driver suspended the device
* Error otherwise
**/
static int __maybe_unused
lpfc_pci_suspend_one_s3(struct device *dev_d)
{
struct Scsi_Host *shost = dev_get_drvdata(dev_d);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0473 PCI device Power Management suspend.\n");
/* Bring down the device */
lpfc_offline_prep(phba, LPFC_MBX_WAIT);
lpfc_offline(phba);
kthread_stop(phba->worker_thread);
/* Disable interrupt from device */
lpfc_sli_disable_intr(phba);
return 0;
}
/**
* lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
* @dev_d: pointer to device
*
* This routine is to be called from the kernel's PCI subsystem to support
* system Power Management (PM) to device with SLI-3 interface spec. When PM
* invokes this method, it restores the device's PCI config space state and
* fully reinitializes the device and brings it online. Note that as the
* driver implements the minimum PM requirements to a power-aware driver's
* PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
* FREEZE) to the suspend() method call will be treated as SUSPEND and the
* driver will fully reinitialize its device during resume() method call,
* the device will be set to PCI_D0 directly in PCI config space before
* restoring the state.
*
* Return code
* 0 - driver suspended the device
* Error otherwise
**/
static int __maybe_unused
lpfc_pci_resume_one_s3(struct device *dev_d)
{
struct Scsi_Host *shost = dev_get_drvdata(dev_d);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
uint32_t intr_mode;
int error;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0452 PCI device Power Management resume.\n");
/* Startup the kernel thread for this host adapter. */
phba->worker_thread = kthread_run(lpfc_do_work, phba,
"lpfc_worker_%d", phba->brd_no);
if (IS_ERR(phba->worker_thread)) {
error = PTR_ERR(phba->worker_thread);
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0434 PM resume failed to start worker "
"thread: error=x%x.\n", error);
return error;
}
/* Init cpu_map array */
lpfc_cpu_map_array_init(phba);
/* Init hba_eq_hdl array */
lpfc_hba_eq_hdl_array_init(phba);
/* Configure and enable interrupt */
intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0430 PM resume Failed to enable interrupt\n");
return -EIO;
} else
phba->intr_mode = intr_mode;
/* Restart HBA and bring it online */
lpfc_sli_brdrestart(phba);
lpfc_online(phba);
/* Log the current active interrupt mode */
lpfc_log_intr_mode(phba, phba->intr_mode);
return 0;
}
/**
* lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to prepare the SLI3 device for PCI slot recover. It
* aborts all the outstanding SCSI I/Os to the pci device.
**/
static void
lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
{
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2723 PCI channel I/O abort preparing for recovery\n");
/*
* There may be errored I/Os through HBA, abort all I/Os on txcmplq
* and let the SCSI mid-layer to retry them to recover.
*/
lpfc_sli_abort_fcp_rings(phba);
}
/**
* lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to prepare the SLI3 device for PCI slot reset. It
* disables the device interrupt and pci device, and aborts the internal FCP
* pending I/Os.
**/
static void
lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
{
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2710 PCI channel disable preparing for reset\n");
/* Block any management I/Os to the device */
lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
/* Block all SCSI devices' I/Os on the host */
lpfc_scsi_dev_block(phba);
/* Flush all driver's outstanding SCSI I/Os as we are to reset */
lpfc_sli_flush_io_rings(phba);
/* stop all timers */
lpfc_stop_hba_timers(phba);
/* Disable interrupt and pci device */
lpfc_sli_disable_intr(phba);
pci_disable_device(phba->pcidev);
}
/**
* lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to prepare the SLI3 device for PCI slot permanently
* disabling. It blocks the SCSI transport layer traffic and flushes the FCP
* pending I/Os.
**/
static void
lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
{
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2711 PCI channel permanent disable for failure\n");
/* Block all SCSI devices' I/Os on the host */
lpfc_scsi_dev_block(phba);
lpfc_sli4_prep_dev_for_reset(phba);
/* stop all timers */
lpfc_stop_hba_timers(phba);
/* Clean up all driver's outstanding SCSI I/Os */
lpfc_sli_flush_io_rings(phba);
}
/**
* lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
* @pdev: pointer to PCI device.
* @state: the current PCI connection state.
*
* This routine is called from the PCI subsystem for I/O error handling to
* device with SLI-3 interface spec. This function is called by the PCI
* subsystem after a PCI bus error affecting this device has been detected.
* When this function is invoked, it will need to stop all the I/Os and
* interrupt(s) to the device. Once that is done, it will return
* PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
* as desired.
*
* Return codes
* PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
* PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
**/
static pci_ers_result_t
lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
switch (state) {
case pci_channel_io_normal:
/* Non-fatal error, prepare for recovery */
lpfc_sli_prep_dev_for_recover(phba);
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
/* Fatal error, prepare for slot reset */
lpfc_sli_prep_dev_for_reset(phba);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
/* Permanent failure, prepare for device down */
lpfc_sli_prep_dev_for_perm_failure(phba);
return PCI_ERS_RESULT_DISCONNECT;
default:
/* Unknown state, prepare and request slot reset */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0472 Unknown PCI error state: x%x\n", state);
lpfc_sli_prep_dev_for_reset(phba);
return PCI_ERS_RESULT_NEED_RESET;
}
}
/**
* lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
* @pdev: pointer to PCI device.
*
* This routine is called from the PCI subsystem for error handling to
* device with SLI-3 interface spec. This is called after PCI bus has been
* reset to restart the PCI card from scratch, as if from a cold-boot.
* During the PCI subsystem error recovery, after driver returns
* PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
* recovery and then call this routine before calling the .resume method
* to recover the device. This function will initialize the HBA device,
* enable the interrupt, but it will just put the HBA to offline state
* without passing any I/O traffic.
*
* Return codes
* PCI_ERS_RESULT_RECOVERED - the device has been recovered
* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
*/
static pci_ers_result_t
lpfc_io_slot_reset_s3(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
struct lpfc_sli *psli = &phba->sli;
uint32_t intr_mode;
dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
if (pci_enable_device_mem(pdev)) {
printk(KERN_ERR "lpfc: Cannot re-enable "
"PCI device after reset.\n");
return PCI_ERS_RESULT_DISCONNECT;
}
pci_restore_state(pdev);
/*
* As the new kernel behavior of pci_restore_state() API call clears
* device saved_state flag, need to save the restored state again.
*/
pci_save_state(pdev);
if (pdev->is_busmaster)
pci_set_master(pdev);
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
/* Configure and enable interrupt */
intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0427 Cannot re-enable interrupt after "
"slot reset.\n");
return PCI_ERS_RESULT_DISCONNECT;
} else
phba->intr_mode = intr_mode;
/* Take device offline, it will perform cleanup */
lpfc_offline_prep(phba, LPFC_MBX_WAIT);
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
/* Log the current active interrupt mode */
lpfc_log_intr_mode(phba, phba->intr_mode);
return PCI_ERS_RESULT_RECOVERED;
}
/**
* lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
* @pdev: pointer to PCI device
*
* This routine is called from the PCI subsystem for error handling to device
* with SLI-3 interface spec. It is called when kernel error recovery tells
* the lpfc driver that it is ok to resume normal PCI operation after PCI bus
* error recovery. After this call, traffic can start to flow from this device
* again.
*/
static void
lpfc_io_resume_s3(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
/* Bring device online, it will be no-op for non-fatal error resume */
lpfc_online(phba);
}
/**
* lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
* @phba: pointer to lpfc hba data structure.
*
* returns the number of ELS/CT IOCBs to reserve
**/
int
lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
{
int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
if (phba->sli_rev == LPFC_SLI_REV4) {
if (max_xri <= 100)
return 10;
else if (max_xri <= 256)
return 25;
else if (max_xri <= 512)
return 50;
else if (max_xri <= 1024)
return 100;
else if (max_xri <= 1536)
return 150;
else if (max_xri <= 2048)
return 200;
else
return 250;
} else
return 0;
}
/**
* lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
* @phba: pointer to lpfc hba data structure.
*
* returns the number of ELS/CT + NVMET IOCBs to reserve
**/
int
lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
{
int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
if (phba->nvmet_support)
max_xri += LPFC_NVMET_BUF_POST;
return max_xri;
}
static int
lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
const struct firmware *fw)
{
int rc;
u8 sli_family;
sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
/* Three cases: (1) FW was not supported on the detected adapter.
* (2) FW update has been locked out administratively.
* (3) Some other error during FW update.
* In each case, an unmaskable message is written to the console
* for admin diagnosis.
*/
if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
(sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
magic_number != MAGIC_NUMBER_G6) ||
(sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
magic_number != MAGIC_NUMBER_G7) ||
(sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
magic_number != MAGIC_NUMBER_G7P)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3030 This firmware version is not supported on"
" this HBA model. Device:%x Magic:%x Type:%x "
"ID:%x Size %d %zd\n",
phba->pcidev->device, magic_number, ftype, fid,
fsize, fw->size);
rc = -EINVAL;
} else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3021 Firmware downloads have been prohibited "
"by a system configuration setting on "
"Device:%x Magic:%x Type:%x ID:%x Size %d "
"%zd\n",
phba->pcidev->device, magic_number, ftype, fid,
fsize, fw->size);
rc = -EACCES;
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"3022 FW Download failed. Add Status x%x "
"Device:%x Magic:%x Type:%x ID:%x Size %d "
"%zd\n",
offset, phba->pcidev->device, magic_number,
ftype, fid, fsize, fw->size);
rc = -EIO;
}
return rc;
}
/**
* lpfc_write_firmware - attempt to write a firmware image to the port
* @fw: pointer to firmware image returned from request_firmware.
* @context: pointer to firmware image returned from request_firmware.
*
**/
static void
lpfc_write_firmware(const struct firmware *fw, void *context)
{
struct lpfc_hba *phba = (struct lpfc_hba *)context;
char fwrev[FW_REV_STR_SIZE];
struct lpfc_grp_hdr *image;
struct list_head dma_buffer_list;
int i, rc = 0;
struct lpfc_dmabuf *dmabuf, *next;
uint32_t offset = 0, temp_offset = 0;
uint32_t magic_number, ftype, fid, fsize;
/* It can be null in no-wait mode, sanity check */
if (!fw) {
rc = -ENXIO;
goto out;
}
image = (struct lpfc_grp_hdr *)fw->data;
magic_number = be32_to_cpu(image->magic_number);
ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
fid = bf_get_be32(lpfc_grp_hdr_id, image);
fsize = be32_to_cpu(image->size);
INIT_LIST_HEAD(&dma_buffer_list);
lpfc_decode_firmware_rev(phba, fwrev, 1);
if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
"3023 Updating Firmware, Current Version:%s "
"New Version:%s\n",
fwrev, image->revision);
for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
GFP_KERNEL);
if (!dmabuf) {
rc = -ENOMEM;
goto release_out;
}
dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
SLI4_PAGE_SIZE,
&dmabuf->phys,
GFP_KERNEL);
if (!dmabuf->virt) {
kfree(dmabuf);
rc = -ENOMEM;
goto release_out;
}
list_add_tail(&dmabuf->list, &dma_buffer_list);
}
while (offset < fw->size) {
temp_offset = offset;
list_for_each_entry(dmabuf, &dma_buffer_list, list) {
if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
memcpy(dmabuf->virt,
fw->data + temp_offset,
fw->size - temp_offset);
temp_offset = fw->size;
break;
}
memcpy(dmabuf->virt, fw->data + temp_offset,
SLI4_PAGE_SIZE);
temp_offset += SLI4_PAGE_SIZE;
}
rc = lpfc_wr_object(phba, &dma_buffer_list,
(fw->size - offset), &offset);
if (rc) {
rc = lpfc_log_write_firmware_error(phba, offset,
magic_number,
ftype,
fid,
fsize,
fw);
goto release_out;
}
}
rc = offset;
} else
lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
"3029 Skipped Firmware update, Current "
"Version:%s New Version:%s\n",
fwrev, image->revision);
release_out:
list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
list_del(&dmabuf->list);
dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
}
release_firmware(fw);
out:
if (rc < 0)
lpfc_log_msg(phba, KERN_ERR, LOG_INIT | LOG_SLI,
"3062 Firmware update error, status %d.\n", rc);
else
lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
"3024 Firmware update success: size %d.\n", rc);
}
/**
* lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
* @phba: pointer to lpfc hba data structure.
* @fw_upgrade: which firmware to update.
*
* This routine is called to perform Linux generic firmware upgrade on device
* that supports such feature.
**/
int
lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
{
uint8_t file_name[ELX_MODEL_NAME_SIZE];
int ret;
const struct firmware *fw;
/* Only supported on SLI4 interface type 2 for now */
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2)
return -EPERM;
snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
if (fw_upgrade == INT_FW_UPGRADE) {
ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
file_name, &phba->pcidev->dev,
GFP_KERNEL, (void *)phba,
lpfc_write_firmware);
} else if (fw_upgrade == RUN_FW_UPGRADE) {
ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
if (!ret)
lpfc_write_firmware(fw, (void *)phba);
} else {
ret = -EINVAL;
}
return ret;
}
/**
* lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
* @pdev: pointer to PCI device
* @pid: pointer to PCI device identifier
*
* This routine is called from the kernel's PCI subsystem to device with
* SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
* presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
* information of the device and driver to see if the driver state that it
* can support this kind of device. If the match is successful, the driver
* core invokes this routine. If this routine determines it can claim the HBA,
* it does all the initialization that it needs to do to handle the HBA
* properly.
*
* Return code
* 0 - driver can claim the device
* negative value - driver can not claim the device
**/
static int
lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
{
struct lpfc_hba *phba;
struct lpfc_vport *vport = NULL;
struct Scsi_Host *shost = NULL;
int error;
uint32_t cfg_mode, intr_mode;
/* Allocate memory for HBA structure */
phba = lpfc_hba_alloc(pdev);
if (!phba)
return -ENOMEM;
INIT_LIST_HEAD(&phba->poll_list);
/* Perform generic PCI device enabling operation */
error = lpfc_enable_pci_dev(phba);
if (error)
goto out_free_phba;
/* Set up SLI API function jump table for PCI-device group-1 HBAs */
error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
if (error)
goto out_disable_pci_dev;
/* Set up SLI-4 specific device PCI memory space */
error = lpfc_sli4_pci_mem_setup(phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1410 Failed to set up pci memory space.\n");
goto out_disable_pci_dev;
}
/* Set up SLI-4 Specific device driver resources */
error = lpfc_sli4_driver_resource_setup(phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1412 Failed to set up driver resource.\n");
goto out_unset_pci_mem_s4;
}
INIT_LIST_HEAD(&phba->active_rrq_list);
INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
/* Set up common device driver resources */
error = lpfc_setup_driver_resource_phase2(phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1414 Failed to set up driver resource.\n");
goto out_unset_driver_resource_s4;
}
/* Get the default values for Model Name and Description */
lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
/* Now, trying to enable interrupt and bring up the device */
cfg_mode = phba->cfg_use_msi;
/* Put device to a known state before enabling interrupt */
phba->pport = NULL;
lpfc_stop_port(phba);
/* Init cpu_map array */
lpfc_cpu_map_array_init(phba);
/* Init hba_eq_hdl array */
lpfc_hba_eq_hdl_array_init(phba);
/* Configure and enable interrupt */
intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0426 Failed to enable interrupt.\n");
error = -ENODEV;
goto out_unset_driver_resource;
}
/* Default to single EQ for non-MSI-X */
if (phba->intr_type != MSIX) {
phba->cfg_irq_chann = 1;
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
if (phba->nvmet_support)
phba->cfg_nvmet_mrq = 1;
}
}
lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
/* Create SCSI host to the physical port */
error = lpfc_create_shost(phba);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1415 Failed to create scsi host.\n");
goto out_disable_intr;
}
vport = phba->pport;
shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
/* Configure sysfs attributes */
error = lpfc_alloc_sysfs_attr(vport);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1416 Failed to allocate sysfs attr\n");
goto out_destroy_shost;
}
/* Set up SLI-4 HBA */
if (lpfc_sli4_hba_setup(phba)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1421 Failed to set up hba\n");
error = -ENODEV;
goto out_free_sysfs_attr;
}
/* Log the current active interrupt mode */
phba->intr_mode = intr_mode;
lpfc_log_intr_mode(phba, intr_mode);
/* Perform post initialization setup */
lpfc_post_init_setup(phba);
/* NVME support in FW earlier in the driver load corrects the
* FC4 type making a check for nvme_support unnecessary.
*/
if (phba->nvmet_support == 0) {
if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
/* Create NVME binding with nvme_fc_transport. This
* ensures the vport is initialized. If the localport
* create fails, it should not unload the driver to
* support field issues.
*/
error = lpfc_nvme_create_localport(vport);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"6004 NVME registration "
"failed, error x%x\n",
error);
}
}
}
/* check for firmware upgrade or downgrade */
if (phba->cfg_request_firmware_upgrade)
lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
/* Check if there are static vports to be created. */
lpfc_create_static_vport(phba);
timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
return 0;
out_free_sysfs_attr:
lpfc_free_sysfs_attr(vport);
out_destroy_shost:
lpfc_destroy_shost(phba);
out_disable_intr:
lpfc_sli4_disable_intr(phba);
out_unset_driver_resource:
lpfc_unset_driver_resource_phase2(phba);
out_unset_driver_resource_s4:
lpfc_sli4_driver_resource_unset(phba);
out_unset_pci_mem_s4:
lpfc_sli4_pci_mem_unset(phba);
out_disable_pci_dev:
lpfc_disable_pci_dev(phba);
if (shost)
scsi_host_put(shost);
out_free_phba:
lpfc_hba_free(phba);
return error;
}
/**
* lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
* @pdev: pointer to PCI device
*
* This routine is called from the kernel's PCI subsystem to device with
* SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
* removed from PCI bus, it performs all the necessary cleanup for the HBA
* device to be removed from the PCI subsystem properly.
**/
static void
lpfc_pci_remove_one_s4(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_vport **vports;
struct lpfc_hba *phba = vport->phba;
int i;
/* Mark the device unloading flag */
spin_lock_irq(&phba->hbalock);
vport->load_flag |= FC_UNLOADING;
spin_unlock_irq(&phba->hbalock);
if (phba->cgn_i)
lpfc_unreg_congestion_buf(phba);
lpfc_free_sysfs_attr(vport);
/* Release all the vports against this physical port */
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
continue;
fc_vport_terminate(vports[i]->fc_vport);
}
lpfc_destroy_vport_work_array(phba, vports);
/* Remove FC host with the physical port */
fc_remove_host(shost);
scsi_remove_host(shost);
/* Perform ndlp cleanup on the physical port. The nvme and nvmet
* localports are destroyed after to cleanup all transport memory.
*/
lpfc_cleanup(vport);
lpfc_nvmet_destroy_targetport(phba);
lpfc_nvme_destroy_localport(vport);
/* De-allocate multi-XRI pools */
if (phba->cfg_xri_rebalancing)
lpfc_destroy_multixri_pools(phba);
/*
* Bring down the SLI Layer. This step disables all interrupts,
* clears the rings, discards all mailbox commands, and resets
* the HBA FCoE function.
*/
lpfc_debugfs_terminate(vport);
lpfc_stop_hba_timers(phba);
spin_lock_irq(&phba->port_list_lock);
list_del_init(&vport->listentry);
spin_unlock_irq(&phba->port_list_lock);
/* Perform scsi free before driver resource_unset since scsi
* buffers are released to their corresponding pools here.
*/
lpfc_io_free(phba);
lpfc_free_iocb_list(phba);
lpfc_sli4_hba_unset(phba);
lpfc_unset_driver_resource_phase2(phba);
lpfc_sli4_driver_resource_unset(phba);
/* Unmap adapter Control and Doorbell registers */
lpfc_sli4_pci_mem_unset(phba);
/* Release PCI resources and disable device's PCI function */
scsi_host_put(shost);
lpfc_disable_pci_dev(phba);
/* Finally, free the driver's device data structure */
lpfc_hba_free(phba);
return;
}
/**
* lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
* @dev_d: pointer to device
*
* This routine is called from the kernel's PCI subsystem to support system
* Power Management (PM) to device with SLI-4 interface spec. When PM invokes
* this method, it quiesces the device by stopping the driver's worker
* thread for the device, turning off device's interrupt and DMA, and bring
* the device offline. Note that as the driver implements the minimum PM
* requirements to a power-aware driver's PM support for suspend/resume -- all
* the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
* method call will be treated as SUSPEND and the driver will fully
* reinitialize its device during resume() method call, the driver will set
* device to PCI_D3hot state in PCI config space instead of setting it
* according to the @msg provided by the PM.
*
* Return code
* 0 - driver suspended the device
* Error otherwise
**/
static int __maybe_unused
lpfc_pci_suspend_one_s4(struct device *dev_d)
{
struct Scsi_Host *shost = dev_get_drvdata(dev_d);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2843 PCI device Power Management suspend.\n");
/* Bring down the device */
lpfc_offline_prep(phba, LPFC_MBX_WAIT);
lpfc_offline(phba);
kthread_stop(phba->worker_thread);
/* Disable interrupt from device */
lpfc_sli4_disable_intr(phba);
lpfc_sli4_queue_destroy(phba);
return 0;
}
/**
* lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
* @dev_d: pointer to device
*
* This routine is called from the kernel's PCI subsystem to support system
* Power Management (PM) to device with SLI-4 interface spac. When PM invokes
* this method, it restores the device's PCI config space state and fully
* reinitializes the device and brings it online. Note that as the driver
* implements the minimum PM requirements to a power-aware driver's PM for
* suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
* to the suspend() method call will be treated as SUSPEND and the driver
* will fully reinitialize its device during resume() method call, the device
* will be set to PCI_D0 directly in PCI config space before restoring the
* state.
*
* Return code
* 0 - driver suspended the device
* Error otherwise
**/
static int __maybe_unused
lpfc_pci_resume_one_s4(struct device *dev_d)
{
struct Scsi_Host *shost = dev_get_drvdata(dev_d);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
uint32_t intr_mode;
int error;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0292 PCI device Power Management resume.\n");
/* Startup the kernel thread for this host adapter. */
phba->worker_thread = kthread_run(lpfc_do_work, phba,
"lpfc_worker_%d", phba->brd_no);
if (IS_ERR(phba->worker_thread)) {
error = PTR_ERR(phba->worker_thread);
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0293 PM resume failed to start worker "
"thread: error=x%x.\n", error);
return error;
}
/* Configure and enable interrupt */
intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0294 PM resume Failed to enable interrupt\n");
return -EIO;
} else
phba->intr_mode = intr_mode;
/* Restart HBA and bring it online */
lpfc_sli_brdrestart(phba);
lpfc_online(phba);
/* Log the current active interrupt mode */
lpfc_log_intr_mode(phba, phba->intr_mode);
return 0;
}
/**
* lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to prepare the SLI4 device for PCI slot recover. It
* aborts all the outstanding SCSI I/Os to the pci device.
**/
static void
lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
{
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2828 PCI channel I/O abort preparing for recovery\n");
/*
* There may be errored I/Os through HBA, abort all I/Os on txcmplq
* and let the SCSI mid-layer to retry them to recover.
*/
lpfc_sli_abort_fcp_rings(phba);
}
/**
* lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to prepare the SLI4 device for PCI slot reset. It
* disables the device interrupt and pci device, and aborts the internal FCP
* pending I/Os.
**/
static void
lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
{
int offline = pci_channel_offline(phba->pcidev);
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2826 PCI channel disable preparing for reset offline"
" %d\n", offline);
/* Block any management I/Os to the device */
lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
/* HBA_PCI_ERR was set in io_error_detect */
lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
/* Flush all driver's outstanding I/Os as we are to reset */
lpfc_sli_flush_io_rings(phba);
lpfc_offline(phba);
/* stop all timers */
lpfc_stop_hba_timers(phba);
lpfc_sli4_queue_destroy(phba);
/* Disable interrupt and pci device */
lpfc_sli4_disable_intr(phba);
pci_disable_device(phba->pcidev);
}
/**
* lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
* @phba: pointer to lpfc hba data structure.
*
* This routine is called to prepare the SLI4 device for PCI slot permanently
* disabling. It blocks the SCSI transport layer traffic and flushes the FCP
* pending I/Os.
**/
static void
lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
{
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2827 PCI channel permanent disable for failure\n");
/* Block all SCSI devices' I/Os on the host */
lpfc_scsi_dev_block(phba);
/* stop all timers */
lpfc_stop_hba_timers(phba);
/* Clean up all driver's outstanding I/Os */
lpfc_sli_flush_io_rings(phba);
}
/**
* lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
* @pdev: pointer to PCI device.
* @state: the current PCI connection state.
*
* This routine is called from the PCI subsystem for error handling to device
* with SLI-4 interface spec. This function is called by the PCI subsystem
* after a PCI bus error affecting this device has been detected. When this
* function is invoked, it will need to stop all the I/Os and interrupt(s)
* to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
* for the PCI subsystem to perform proper recovery as desired.
*
* Return codes
* PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
**/
static pci_ers_result_t
lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
bool hba_pci_err;
switch (state) {
case pci_channel_io_normal:
/* Non-fatal error, prepare for recovery */
lpfc_sli4_prep_dev_for_recover(phba);
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
hba_pci_err = test_and_set_bit(HBA_PCI_ERR, &phba->bit_flags);
/* Fatal error, prepare for slot reset */
if (!hba_pci_err)
lpfc_sli4_prep_dev_for_reset(phba);
else
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2832 Already handling PCI error "
"state: x%x\n", state);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
set_bit(HBA_PCI_ERR, &phba->bit_flags);
/* Permanent failure, prepare for device down */
lpfc_sli4_prep_dev_for_perm_failure(phba);
return PCI_ERS_RESULT_DISCONNECT;
default:
hba_pci_err = test_and_set_bit(HBA_PCI_ERR, &phba->bit_flags);
if (!hba_pci_err)
lpfc_sli4_prep_dev_for_reset(phba);
/* Unknown state, prepare and request slot reset */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2825 Unknown PCI error state: x%x\n", state);
lpfc_sli4_prep_dev_for_reset(phba);
return PCI_ERS_RESULT_NEED_RESET;
}
}
/**
* lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
* @pdev: pointer to PCI device.
*
* This routine is called from the PCI subsystem for error handling to device
* with SLI-4 interface spec. It is called after PCI bus has been reset to
* restart the PCI card from scratch, as if from a cold-boot. During the
* PCI subsystem error recovery, after the driver returns
* PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
* recovery and then call this routine before calling the .resume method to
* recover the device. This function will initialize the HBA device, enable
* the interrupt, but it will just put the HBA to offline state without
* passing any I/O traffic.
*
* Return codes
* PCI_ERS_RESULT_RECOVERED - the device has been recovered
* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
*/
static pci_ers_result_t
lpfc_io_slot_reset_s4(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
struct lpfc_sli *psli = &phba->sli;
uint32_t intr_mode;
bool hba_pci_err;
dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
if (pci_enable_device_mem(pdev)) {
printk(KERN_ERR "lpfc: Cannot re-enable "
"PCI device after reset.\n");
return PCI_ERS_RESULT_DISCONNECT;
}
pci_restore_state(pdev);
hba_pci_err = test_and_clear_bit(HBA_PCI_ERR, &phba->bit_flags);
if (!hba_pci_err)
dev_info(&pdev->dev,
"hba_pci_err was not set, recovering slot reset.\n");
/*
* As the new kernel behavior of pci_restore_state() API call clears
* device saved_state flag, need to save the restored state again.
*/
pci_save_state(pdev);
if (pdev->is_busmaster)
pci_set_master(pdev);
spin_lock_irq(&phba->hbalock);
psli->sli_flag &= ~LPFC_SLI_ACTIVE;
spin_unlock_irq(&phba->hbalock);
/* Init cpu_map array */
lpfc_cpu_map_array_init(phba);
/* Configure and enable interrupt */
intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
if (intr_mode == LPFC_INTR_ERROR) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2824 Cannot re-enable interrupt after "
"slot reset.\n");
return PCI_ERS_RESULT_DISCONNECT;
} else
phba->intr_mode = intr_mode;
lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
/* Log the current active interrupt mode */
lpfc_log_intr_mode(phba, phba->intr_mode);
return PCI_ERS_RESULT_RECOVERED;
}
/**
* lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
* @pdev: pointer to PCI device
*
* This routine is called from the PCI subsystem for error handling to device
* with SLI-4 interface spec. It is called when kernel error recovery tells
* the lpfc driver that it is ok to resume normal PCI operation after PCI bus
* error recovery. After this call, traffic can start to flow from this device
* again.
**/
static void
lpfc_io_resume_s4(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
/*
* In case of slot reset, as function reset is performed through
* mailbox command which needs DMA to be enabled, this operation
* has to be moved to the io resume phase. Taking device offline
* will perform the necessary cleanup.
*/
if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
/* Perform device reset */
lpfc_sli_brdrestart(phba);
/* Bring the device back online */
lpfc_online(phba);
}
}
/**
* lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
* @pdev: pointer to PCI device
* @pid: pointer to PCI device identifier
*
* This routine is to be registered to the kernel's PCI subsystem. When an
* Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
* at PCI device-specific information of the device and driver to see if the
* driver state that it can support this kind of device. If the match is
* successful, the driver core invokes this routine. This routine dispatches
* the action to the proper SLI-3 or SLI-4 device probing routine, which will
* do all the initialization that it needs to do to handle the HBA device
* properly.
*
* Return code
* 0 - driver can claim the device
* negative value - driver can not claim the device
**/
static int
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
int rc;
struct lpfc_sli_intf intf;
if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
return -ENODEV;
if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
(bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
rc = lpfc_pci_probe_one_s4(pdev, pid);
else
rc = lpfc_pci_probe_one_s3(pdev, pid);
return rc;
}
/**
* lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
* @pdev: pointer to PCI device
*
* This routine is to be registered to the kernel's PCI subsystem. When an
* Emulex HBA is removed from PCI bus, the driver core invokes this routine.
* This routine dispatches the action to the proper SLI-3 or SLI-4 device
* remove routine, which will perform all the necessary cleanup for the
* device to be removed from the PCI subsystem properly.
**/
static void
lpfc_pci_remove_one(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
switch (phba->pci_dev_grp) {
case LPFC_PCI_DEV_LP:
lpfc_pci_remove_one_s3(pdev);
break;
case LPFC_PCI_DEV_OC:
lpfc_pci_remove_one_s4(pdev);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1424 Invalid PCI device group: 0x%x\n",
phba->pci_dev_grp);
break;
}
return;
}
/**
* lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
* @dev: pointer to device
*
* This routine is to be registered to the kernel's PCI subsystem to support
* system Power Management (PM). When PM invokes this method, it dispatches
* the action to the proper SLI-3 or SLI-4 device suspend routine, which will
* suspend the device.
*
* Return code
* 0 - driver suspended the device
* Error otherwise
**/
static int __maybe_unused
lpfc_pci_suspend_one(struct device *dev)
{
struct Scsi_Host *shost = dev_get_drvdata(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
int rc = -ENODEV;
switch (phba->pci_dev_grp) {
case LPFC_PCI_DEV_LP:
rc = lpfc_pci_suspend_one_s3(dev);
break;
case LPFC_PCI_DEV_OC:
rc = lpfc_pci_suspend_one_s4(dev);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1425 Invalid PCI device group: 0x%x\n",
phba->pci_dev_grp);
break;
}
return rc;
}
/**
* lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
* @dev: pointer to device
*
* This routine is to be registered to the kernel's PCI subsystem to support
* system Power Management (PM). When PM invokes this method, it dispatches
* the action to the proper SLI-3 or SLI-4 device resume routine, which will
* resume the device.
*
* Return code
* 0 - driver suspended the device
* Error otherwise
**/
static int __maybe_unused
lpfc_pci_resume_one(struct device *dev)
{
struct Scsi_Host *shost = dev_get_drvdata(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
int rc = -ENODEV;
switch (phba->pci_dev_grp) {
case LPFC_PCI_DEV_LP:
rc = lpfc_pci_resume_one_s3(dev);
break;
case LPFC_PCI_DEV_OC:
rc = lpfc_pci_resume_one_s4(dev);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1426 Invalid PCI device group: 0x%x\n",
phba->pci_dev_grp);
break;
}
return rc;
}
/**
* lpfc_io_error_detected - lpfc method for handling PCI I/O error
* @pdev: pointer to PCI device.
* @state: the current PCI connection state.
*
* This routine is registered to the PCI subsystem for error handling. This
* function is called by the PCI subsystem after a PCI bus error affecting
* this device has been detected. When this routine is invoked, it dispatches
* the action to the proper SLI-3 or SLI-4 device error detected handling
* routine, which will perform the proper error detected operation.
*
* Return codes
* PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
**/
static pci_ers_result_t
lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
if (phba->link_state == LPFC_HBA_ERROR &&
phba->hba_flag & HBA_IOQ_FLUSH)
return PCI_ERS_RESULT_NEED_RESET;
switch (phba->pci_dev_grp) {
case LPFC_PCI_DEV_LP:
rc = lpfc_io_error_detected_s3(pdev, state);
break;
case LPFC_PCI_DEV_OC:
rc = lpfc_io_error_detected_s4(pdev, state);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1427 Invalid PCI device group: 0x%x\n",
phba->pci_dev_grp);
break;
}
return rc;
}
/**
* lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
* @pdev: pointer to PCI device.
*
* This routine is registered to the PCI subsystem for error handling. This
* function is called after PCI bus has been reset to restart the PCI card
* from scratch, as if from a cold-boot. When this routine is invoked, it
* dispatches the action to the proper SLI-3 or SLI-4 device reset handling
* routine, which will perform the proper device reset.
*
* Return codes
* PCI_ERS_RESULT_RECOVERED - the device has been recovered
* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
**/
static pci_ers_result_t
lpfc_io_slot_reset(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
switch (phba->pci_dev_grp) {
case LPFC_PCI_DEV_LP:
rc = lpfc_io_slot_reset_s3(pdev);
break;
case LPFC_PCI_DEV_OC:
rc = lpfc_io_slot_reset_s4(pdev);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1428 Invalid PCI device group: 0x%x\n",
phba->pci_dev_grp);
break;
}
return rc;
}
/**
* lpfc_io_resume - lpfc method for resuming PCI I/O operation
* @pdev: pointer to PCI device
*
* This routine is registered to the PCI subsystem for error handling. It
* is called when kernel error recovery tells the lpfc driver that it is
* OK to resume normal PCI operation after PCI bus error recovery. When
* this routine is invoked, it dispatches the action to the proper SLI-3
* or SLI-4 device io_resume routine, which will resume the device operation.
**/
static void
lpfc_io_resume(struct pci_dev *pdev)
{
struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
switch (phba->pci_dev_grp) {
case LPFC_PCI_DEV_LP:
lpfc_io_resume_s3(pdev);
break;
case LPFC_PCI_DEV_OC:
lpfc_io_resume_s4(pdev);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1429 Invalid PCI device group: 0x%x\n",
phba->pci_dev_grp);
break;
}
return;
}
/**
* lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
* @phba: pointer to lpfc hba data structure.
*
* This routine checks to see if OAS is supported for this adapter. If
* supported, the configure Flash Optimized Fabric flag is set. Otherwise,
* the enable oas flag is cleared and the pool created for OAS device data
* is destroyed.
*
**/
static void
lpfc_sli4_oas_verify(struct lpfc_hba *phba)
{
if (!phba->cfg_EnableXLane)
return;
if (phba->sli4_hba.pc_sli4_params.oas_supported) {
phba->cfg_fof = 1;
} else {
phba->cfg_fof = 0;
mempool_destroy(phba->device_data_mem_pool);
phba->device_data_mem_pool = NULL;
}
return;
}
/**
* lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
* @phba: pointer to lpfc hba data structure.
*
* This routine checks to see if RAS is supported by the adapter. Check the
* function through which RAS support enablement is to be done.
**/
void
lpfc_sli4_ras_init(struct lpfc_hba *phba)
{
/* if ASIC_GEN_NUM >= 0xC) */
if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_IF_TYPE_6) ||
(bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
LPFC_SLI_INTF_FAMILY_G6)) {
phba->ras_fwlog.ras_hwsupport = true;
if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
phba->cfg_ras_fwlog_buffsize)
phba->ras_fwlog.ras_enabled = true;
else
phba->ras_fwlog.ras_enabled = false;
} else {
phba->ras_fwlog.ras_hwsupport = false;
}
}
MODULE_DEVICE_TABLE(pci, lpfc_id_table);
static const struct pci_error_handlers lpfc_err_handler = {
.error_detected = lpfc_io_error_detected,
.slot_reset = lpfc_io_slot_reset,
.resume = lpfc_io_resume,
};
static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
lpfc_pci_suspend_one,
lpfc_pci_resume_one);
static struct pci_driver lpfc_driver = {
.name = LPFC_DRIVER_NAME,
.id_table = lpfc_id_table,
.probe = lpfc_pci_probe_one,
.remove = lpfc_pci_remove_one,
.shutdown = lpfc_pci_remove_one,
.driver.pm = &lpfc_pci_pm_ops_one,
.err_handler = &lpfc_err_handler,
};
static const struct file_operations lpfc_mgmt_fop = {
.owner = THIS_MODULE,
};
static struct miscdevice lpfc_mgmt_dev = {
.minor = MISC_DYNAMIC_MINOR,
.name = "lpfcmgmt",
.fops = &lpfc_mgmt_fop,
};
/**
* lpfc_init - lpfc module initialization routine
*
* This routine is to be invoked when the lpfc module is loaded into the
* kernel. The special kernel macro module_init() is used to indicate the
* role of this routine to the kernel as lpfc module entry point.
*
* Return codes
* 0 - successful
* -ENOMEM - FC attach transport failed
* all others - failed
*/
static int __init
lpfc_init(void)
{
int error = 0;
pr_info(LPFC_MODULE_DESC "\n");
pr_info(LPFC_COPYRIGHT "\n");
error = misc_register(&lpfc_mgmt_dev);
if (error)
printk(KERN_ERR "Could not register lpfcmgmt device, "
"misc_register returned with status %d", error);
error = -ENOMEM;
lpfc_transport_functions.vport_create = lpfc_vport_create;
lpfc_transport_functions.vport_delete = lpfc_vport_delete;
lpfc_transport_template =
fc_attach_transport(&lpfc_transport_functions);
if (lpfc_transport_template == NULL)
goto unregister;
lpfc_vport_transport_template =
fc_attach_transport(&lpfc_vport_transport_functions);
if (lpfc_vport_transport_template == NULL) {
fc_release_transport(lpfc_transport_template);
goto unregister;
}
lpfc_wqe_cmd_template();
lpfc_nvmet_cmd_template();
/* Initialize in case vector mapping is needed */
lpfc_present_cpu = num_present_cpus();
lpfc_pldv_detect = false;
error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
"lpfc/sli4:online",
lpfc_cpu_online, lpfc_cpu_offline);
if (error < 0)
goto cpuhp_failure;
lpfc_cpuhp_state = error;
error = pci_register_driver(&lpfc_driver);
if (error)
goto unwind;
return error;
unwind:
cpuhp_remove_multi_state(lpfc_cpuhp_state);
cpuhp_failure:
fc_release_transport(lpfc_transport_template);
fc_release_transport(lpfc_vport_transport_template);
unregister:
misc_deregister(&lpfc_mgmt_dev);
return error;
}
void lpfc_dmp_dbg(struct lpfc_hba *phba)
{
unsigned int start_idx;
unsigned int dbg_cnt;
unsigned int temp_idx;
int i;
int j = 0;
unsigned long rem_nsec;
if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
return;
start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
if (!dbg_cnt)
goto out;
temp_idx = start_idx;
if (dbg_cnt >= DBG_LOG_SZ) {
dbg_cnt = DBG_LOG_SZ;
temp_idx -= 1;
} else {
if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
} else {
if (start_idx < dbg_cnt)
start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
else
start_idx -= dbg_cnt;
}
}
dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
start_idx, temp_idx, dbg_cnt);
for (i = 0; i < dbg_cnt; i++) {
if ((start_idx + i) < DBG_LOG_SZ)
temp_idx = (start_idx + i) % DBG_LOG_SZ;
else
temp_idx = j++;
rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
temp_idx,
(unsigned long)phba->dbg_log[temp_idx].t_ns,
rem_nsec / 1000,
phba->dbg_log[temp_idx].log);
}
out:
atomic_set(&phba->dbg_log_cnt, 0);
atomic_set(&phba->dbg_log_dmping, 0);
}
__printf(2, 3)
void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
{
unsigned int idx;
va_list args;
int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
struct va_format vaf;
va_start(args, fmt);
if (unlikely(dbg_dmping)) {
vaf.fmt = fmt;
vaf.va = &args;
dev_info(&phba->pcidev->dev, "%pV", &vaf);
va_end(args);
return;
}
idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
DBG_LOG_SZ;
atomic_inc(&phba->dbg_log_cnt);
vscnprintf(phba->dbg_log[idx].log,
sizeof(phba->dbg_log[idx].log), fmt, args);
va_end(args);
phba->dbg_log[idx].t_ns = local_clock();
}
/**
* lpfc_exit - lpfc module removal routine
*
* This routine is invoked when the lpfc module is removed from the kernel.
* The special kernel macro module_exit() is used to indicate the role of
* this routine to the kernel as lpfc module exit point.
*/
static void __exit
lpfc_exit(void)
{
misc_deregister(&lpfc_mgmt_dev);
pci_unregister_driver(&lpfc_driver);
cpuhp_remove_multi_state(lpfc_cpuhp_state);
fc_release_transport(lpfc_transport_template);
fc_release_transport(lpfc_vport_transport_template);
idr_destroy(&lpfc_hba_index);
}
module_init(lpfc_init);
module_exit(lpfc_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION(LPFC_MODULE_DESC);
MODULE_AUTHOR("Broadcom");
MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
|
linux-master
|
drivers/scsi/lpfc/lpfc_init.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_compat.h"
/**
* lpfc_mbox_rsrc_prep - Prepare a mailbox with DMA buffer memory.
* @phba: pointer to lpfc hba data structure.
* @mbox: pointer to the driver internal queue element for mailbox command.
*
* A mailbox command consists of the pool memory for the command, @mbox, and
* one or more DMA buffers for the data transfer. This routine provides
* a standard framework for allocating the dma buffer and assigning to the
* @mbox. Callers should cleanup the mbox with a call to
* lpfc_mbox_rsrc_cleanup.
*
* The lpfc_mbuf_alloc routine acquires the hbalock so the caller is
* responsible to ensure the hbalock is released. Also note that the
* driver design is a single dmabuf/mbuf per mbox in the ctx_buf.
*
**/
int
lpfc_mbox_rsrc_prep(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
struct lpfc_dmabuf *mp;
mp = kmalloc(sizeof(*mp), GFP_KERNEL);
if (!mp)
return -ENOMEM;
mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
if (!mp->virt) {
kfree(mp);
return -ENOMEM;
}
memset(mp->virt, 0, LPFC_BPL_SIZE);
/* Initialization only. Driver does not use a list of dmabufs. */
INIT_LIST_HEAD(&mp->list);
mbox->ctx_buf = mp;
return 0;
}
/**
* lpfc_mbox_rsrc_cleanup - Free the mailbox DMA buffer and virtual memory.
* @phba: pointer to lpfc hba data structure.
* @mbox: pointer to the driver internal queue element for mailbox command.
* @locked: value that indicates if the hbalock is held (1) or not (0).
*
* A mailbox command consists of the pool memory for the command, @mbox, and
* possibly a DMA buffer for the data transfer. This routine provides
* a standard framework for releasing any dma buffers and freeing all
* memory resources in it as well as releasing the @mbox back to the @phba pool.
* Callers should use this routine for cleanup for all mailboxes prepped with
* lpfc_mbox_rsrc_prep.
*
**/
void
lpfc_mbox_rsrc_cleanup(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
enum lpfc_mbox_ctx locked)
{
struct lpfc_dmabuf *mp;
mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
mbox->ctx_buf = NULL;
/* Release the generic BPL buffer memory. */
if (mp) {
if (locked == MBOX_THD_LOCKED)
__lpfc_mbuf_free(phba, mp->virt, mp->phys);
else
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
mempool_free(mbox, phba->mbox_mem_pool);
}
/**
* lpfc_dump_static_vport - Dump HBA's static vport information.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @offset: offset for dumping vport info.
*
* The dump mailbox command provides a method for the device driver to obtain
* various types of information from the HBA device.
*
* This routine prepares the mailbox command for dumping list of static
* vports to be created.
**/
int
lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
uint16_t offset)
{
MAILBOX_t *mb;
struct lpfc_dmabuf *mp;
int rc;
mb = &pmb->u.mb;
/* Setup to dump vport info region */
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.entry_index = offset;
mb->un.varDmp.region_id = DMP_REGION_VPORT;
mb->mbxOwner = OWN_HOST;
/* For SLI3 HBAs data is embedded in mailbox */
if (phba->sli_rev != LPFC_SLI_REV4) {
mb->un.varDmp.cv = 1;
mb->un.varDmp.word_cnt = DMP_RSP_SIZE/sizeof(uint32_t);
return 0;
}
rc = lpfc_mbox_rsrc_prep(phba, pmb);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"2605 %s: memory allocation failed\n",
__func__);
return 1;
}
mp = pmb->ctx_buf;
mb->un.varWords[3] = putPaddrLow(mp->phys);
mb->un.varWords[4] = putPaddrHigh(mp->phys);
mb->un.varDmp.sli4_length = sizeof(struct static_vport_info);
return 0;
}
/**
* lpfc_down_link - Bring down HBAs link.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* This routine prepares a mailbox command to bring down HBA link.
**/
void
lpfc_down_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb = &pmb->u.mb;
mb->mbxCommand = MBX_DOWN_LINK;
mb->mbxOwner = OWN_HOST;
}
/**
* lpfc_dump_mem - Prepare a mailbox command for reading a region.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @offset: offset into the region.
* @region_id: config region id.
*
* The dump mailbox command provides a method for the device driver to obtain
* various types of information from the HBA device.
*
* This routine prepares the mailbox command for dumping HBA's config region.
**/
void
lpfc_dump_mem(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint16_t offset,
uint16_t region_id)
{
MAILBOX_t *mb;
void *ctx;
mb = &pmb->u.mb;
ctx = pmb->ctx_buf;
/* Setup to dump VPD region */
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->un.varDmp.cv = 1;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.entry_index = offset;
mb->un.varDmp.region_id = region_id;
mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
mb->un.varDmp.co = 0;
mb->un.varDmp.resp_offset = 0;
pmb->ctx_buf = ctx;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_dump_wakeup_param - Prepare mailbox command for retrieving wakeup params
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* This function create a dump memory mailbox command to dump wake up
* parameters.
*/
void
lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb;
void *ctx;
mb = &pmb->u.mb;
/* Save context so that we can restore after memset */
ctx = pmb->ctx_buf;
/* Setup to dump VPD region */
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->mbxOwner = OWN_HOST;
mb->un.varDmp.cv = 1;
mb->un.varDmp.type = DMP_NV_PARAMS;
if (phba->sli_rev < LPFC_SLI_REV4)
mb->un.varDmp.entry_index = 0;
mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID;
mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE;
mb->un.varDmp.co = 0;
mb->un.varDmp.resp_offset = 0;
pmb->ctx_buf = ctx;
return;
}
/**
* lpfc_read_nv - Prepare a mailbox command for reading HBA's NVRAM param
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The read NVRAM mailbox command returns the HBA's non-volatile parameters
* that are used as defaults when the Fibre Channel link is brought on-line.
*
* This routine prepares the mailbox command for reading information stored
* in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN.
**/
void
lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_NV;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_config_async - Prepare a mailbox command for enabling HBA async event
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @ring: ring number for the asynchronous event to be configured.
*
* The asynchronous event enable mailbox command is used to enable the
* asynchronous event posting via the ASYNC_STATUS_CN IOCB response and
* specifies the default ring to which events are posted.
*
* This routine prepares the mailbox command for enabling HBA asynchronous
* event support on a IOCB ring.
**/
void
lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
uint32_t ring)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
mb->un.varCfgAsyncEvent.ring = ring;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_heart_beat - Prepare a mailbox command for heart beat
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The heart beat mailbox command is used to detect an unresponsive HBA, which
* is defined as any device where no error attention is sent and both mailbox
* and rings are not processed.
*
* This routine prepares the mailbox command for issuing a heart beat in the
* form of mailbox command to the HBA. The timely completion of the heart
* beat mailbox command indicates the health of the HBA.
**/
void
lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_HEARTBEAT;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_read_topology - Prepare a mailbox command for reading HBA topology
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @mp: DMA buffer memory for reading the link attention information into.
*
* The read topology mailbox command is issued to read the link topology
* information indicated by the HBA port when the Link Event bit of the Host
* Attention (HSTATT) register is set to 1 (For SLI-3) or when an FC Link
* Attention ACQE is received from the port (For SLI-4). A Link Event
* Attention occurs based on an exception detected at the Fibre Channel link
* interface.
*
* This routine prepares the mailbox command for reading HBA link topology
* information. A DMA memory has been set aside and address passed to the
* HBA through @mp for the HBA to DMA link attention information into the
* memory as part of the execution of the mailbox command.
*
* Return codes
* 0 - Success (currently always return 0)
**/
int
lpfc_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
struct lpfc_dmabuf *mp)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
INIT_LIST_HEAD(&mp->list);
mb->mbxCommand = MBX_READ_TOPOLOGY;
mb->un.varReadTop.lilpBde64.tus.f.bdeSize = LPFC_ALPA_MAP_SIZE;
mb->un.varReadTop.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varReadTop.lilpBde64.addrLow = putPaddrLow(mp->phys);
/* Save address for later completion and set the owner to host so that
* the FW knows this mailbox is available for processing.
*/
pmb->ctx_buf = (uint8_t *)mp;
mb->mbxOwner = OWN_HOST;
return (0);
}
/**
* lpfc_clear_la - Prepare a mailbox command for clearing HBA link attention
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The clear link attention mailbox command is issued to clear the link event
* attention condition indicated by the Link Event bit of the Host Attention
* (HSTATT) register. The link event attention condition is cleared only if
* the event tag specified matches that of the current link event counter.
* The current event tag is read using the read link attention event mailbox
* command.
*
* This routine prepares the mailbox command for clearing HBA link attention
* information.
**/
void
lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varClearLA.eventTag = phba->fc_eventTag;
mb->mbxCommand = MBX_CLEAR_LA;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_config_link - Prepare a mailbox command for configuring link on a HBA
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure link mailbox command is used before the initialize link
* mailbox command to override default value and to configure link-oriented
* parameters such as DID address and various timers. Typically, this
* command would be used after an F_Port login to set the returned DID address
* and the fabric timeout values. This command is not valid before a configure
* port command has configured the HBA port.
*
* This routine prepares the mailbox command for configuring link on a HBA.
**/
void
lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
struct lpfc_vport *vport = phba->pport;
MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
/* NEW_FEATURE
* SLI-2, Coalescing Response Feature.
*/
if (phba->cfg_cr_delay && (phba->sli_rev < LPFC_SLI_REV4)) {
mb->un.varCfgLnk.cr = 1;
mb->un.varCfgLnk.ci = 1;
mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
}
mb->un.varCfgLnk.myId = vport->fc_myDID;
mb->un.varCfgLnk.edtov = phba->fc_edtov;
mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
mb->un.varCfgLnk.ratov = phba->fc_ratov;
mb->un.varCfgLnk.rttov = phba->fc_rttov;
mb->un.varCfgLnk.altov = phba->fc_altov;
mb->un.varCfgLnk.crtov = phba->fc_crtov;
mb->un.varCfgLnk.cscn = 0;
if (phba->bbcredit_support && phba->cfg_enable_bbcr) {
mb->un.varCfgLnk.cscn = 1;
mb->un.varCfgLnk.bbscn = bf_get(lpfc_bbscn_def,
&phba->sli4_hba.bbscn_params);
}
if (phba->cfg_ack0 && (phba->sli_rev < LPFC_SLI_REV4))
mb->un.varCfgLnk.ack0_enable = 1;
mb->mbxCommand = MBX_CONFIG_LINK;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_config_msi - Prepare a mailbox command for configuring msi-x
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure MSI-X mailbox command is used to configure the HBA's SLI-3
* MSI-X multi-message interrupt vector association to interrupt attention
* conditions.
*
* Return codes
* 0 - Success
* -EINVAL - Failure
**/
int
lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
uint32_t attentionConditions[2];
/* Sanity check */
if (phba->cfg_use_msi != 2) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0475 Not configured for supporting MSI-X "
"cfg_use_msi: 0x%x\n", phba->cfg_use_msi);
return -EINVAL;
}
if (phba->sli_rev < 3) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0476 HBA not supporting SLI-3 or later "
"SLI Revision: 0x%x\n", phba->sli_rev);
return -EINVAL;
}
/* Clear mailbox command fields */
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
/*
* SLI-3, Message Signaled Interrupt Feature.
*/
/* Multi-message attention configuration */
attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT |
HA_LATT | HA_MBATT);
attentionConditions[1] = 0;
mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0];
mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1];
/*
* Set up message number to HA bit association
*/
#ifdef __BIG_ENDIAN_BITFIELD
/* RA0 (FCP Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1;
/* RA1 (Other Protocol Extra Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1;
#else /* __LITTLE_ENDIAN_BITFIELD */
/* RA0 (FCP Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1;
/* RA1 (Other Protocol Extra Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1;
#endif
/* Multi-message interrupt autoclear configuration*/
mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0];
mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1];
/* For now, HBA autoclear does not work reliably, disable it */
mb->un.varCfgMSI.autoClearHA[0] = 0;
mb->un.varCfgMSI.autoClearHA[1] = 0;
/* Set command and owner bit */
mb->mbxCommand = MBX_CONFIG_MSI;
mb->mbxOwner = OWN_HOST;
return 0;
}
/**
* lpfc_init_link - Prepare a mailbox command for initialize link on a HBA
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @topology: the link topology for the link to be initialized to.
* @linkspeed: the link speed for the link to be initialized to.
*
* The initialize link mailbox command is used to initialize the Fibre
* Channel link. This command must follow a configure port command that
* establishes the mode of operation.
*
* This routine prepares the mailbox command for initializing link on a HBA
* with the specified link topology and speed.
**/
void
lpfc_init_link(struct lpfc_hba * phba,
LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
{
lpfc_vpd_t *vpd;
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
switch (topology) {
case FLAGS_TOPOLOGY_MODE_LOOP_PT:
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
break;
case FLAGS_TOPOLOGY_MODE_PT_PT:
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
break;
case FLAGS_TOPOLOGY_MODE_LOOP:
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
break;
case FLAGS_TOPOLOGY_MODE_PT_LOOP:
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
break;
case FLAGS_LOCAL_LB:
mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
break;
}
/* Topology handling for ASIC_GEN_NUM 0xC and later */
if ((phba->sli4_hba.pc_sli4_params.sli_family == LPFC_SLI_INTF_FAMILY_G6 ||
phba->sli4_hba.pc_sli4_params.if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
!(phba->sli4_hba.pc_sli4_params.pls) &&
mb->un.varInitLnk.link_flags & FLAGS_TOPOLOGY_MODE_LOOP) {
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
phba->cfg_topology = FLAGS_TOPOLOGY_MODE_PT_PT;
}
/* Enable asynchronous ABTS responses from firmware */
if (phba->sli_rev == LPFC_SLI_REV3 && !phba->cfg_fcp_wait_abts_rsp)
mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
/* NEW_FEATURE
* Setting up the link speed
*/
vpd = &phba->vpd;
if (vpd->rev.feaLevelHigh >= 0x02){
switch(linkspeed){
case LPFC_USER_LINK_SPEED_1G:
mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = LINK_SPEED_1G;
break;
case LPFC_USER_LINK_SPEED_2G:
mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = LINK_SPEED_2G;
break;
case LPFC_USER_LINK_SPEED_4G:
mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = LINK_SPEED_4G;
break;
case LPFC_USER_LINK_SPEED_8G:
mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = LINK_SPEED_8G;
break;
case LPFC_USER_LINK_SPEED_10G:
mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = LINK_SPEED_10G;
break;
case LPFC_USER_LINK_SPEED_16G:
mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = LINK_SPEED_16G;
break;
case LPFC_USER_LINK_SPEED_32G:
mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = LINK_SPEED_32G;
break;
case LPFC_USER_LINK_SPEED_64G:
mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = LINK_SPEED_64G;
break;
case LPFC_USER_LINK_SPEED_AUTO:
default:
mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
break;
}
}
else
mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
mb->mbxOwner = OWN_HOST;
mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
return;
}
/**
* lpfc_read_sparam - Prepare a mailbox command for reading HBA parameters
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @vpi: virtual N_Port identifier.
*
* The read service parameter mailbox command is used to read the HBA port
* service parameters. The service parameters are read into the buffer
* specified directly by a BDE in the mailbox command. These service
* parameters may then be used to build the payload of an N_Port/F_POrt
* login request and reply (LOGI/ACC).
*
* This routine prepares the mailbox command for reading HBA port service
* parameters. The DMA memory is allocated in this function and the addresses
* are populated into the mailbox command for the HBA to DMA the service
* parameters into.
*
* Return codes
* 0 - Success
* 1 - DMA memory allocation failed
**/
int
lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
{
struct lpfc_dmabuf *mp;
MAILBOX_t *mb;
int rc;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
/* Get a buffer to hold the HBAs Service Parameters */
rc = lpfc_mbox_rsrc_prep(phba, pmb);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"0301 READ_SPARAM: no buffers\n");
return 1;
}
mp = pmb->ctx_buf;
mb = &pmb->u.mb;
mb->mbxOwner = OWN_HOST;
mb->mbxCommand = MBX_READ_SPARM64;
mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
if (phba->sli_rev >= LPFC_SLI_REV3)
mb->un.varRdSparm.vpi = phba->vpi_ids[vpi];
return (0);
}
/**
* lpfc_unreg_did - Prepare a mailbox command for unregistering DID
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @did: remote port identifier.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The unregister DID mailbox command is used to unregister an N_Port/F_Port
* login for an unknown RPI by specifying the DID of a remote port. This
* command frees an RPI context in the HBA port. This has the effect of
* performing an implicit N_Port/F_Port logout.
*
* This routine prepares the mailbox command for unregistering a remote
* N_Port/F_Port (DID) login.
**/
void
lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varUnregDID.did = did;
mb->un.varUnregDID.vpi = vpi;
if ((vpi != 0xffff) &&
(phba->sli_rev == LPFC_SLI_REV4))
mb->un.varUnregDID.vpi = phba->vpi_ids[vpi];
mb->mbxCommand = MBX_UNREG_D_ID;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_read_config - Prepare a mailbox command for reading HBA configuration
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The read configuration mailbox command is used to read the HBA port
* configuration parameters. This mailbox command provides a method for
* seeing any parameters that may have changed via various configuration
* mailbox commands.
*
* This routine prepares the mailbox command for reading out HBA configuration
* parameters.
**/
void
lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_CONFIG;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_read_lnk_stat - Prepare a mailbox command for reading HBA link stats
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The read link status mailbox command is used to read the link status from
* the HBA. Link status includes all link-related error counters. These
* counters are maintained by the HBA and originated in the link hardware
* unit. Note that all of these counters wrap.
*
* This routine prepares the mailbox command for reading out HBA link status.
**/
void
lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_LNK_STAT;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_reg_rpi - Prepare a mailbox command for registering remote login
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @did: remote port identifier.
* @param: pointer to memory holding the server parameters.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @rpi: the rpi to use in the registration (usually only used for SLI4.
*
* The registration login mailbox command is used to register an N_Port or
* F_Port login. This registration allows the HBA to cache the remote N_Port
* service parameters internally and thereby make the appropriate FC-2
* decisions. The remote port service parameters are handed off by the driver
* to the HBA using a descriptor entry that directly identifies a buffer in
* host memory. In exchange, the HBA returns an RPI identifier.
*
* This routine prepares the mailbox command for registering remote port login.
* The function allocates DMA buffer for passing the service parameters to the
* HBA with the mailbox command.
*
* Return codes
* 0 - Success
* 1 - DMA memory allocation failed
**/
int
lpfc_reg_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
uint8_t *param, LPFC_MBOXQ_t *pmb, uint16_t rpi)
{
MAILBOX_t *mb = &pmb->u.mb;
uint8_t *sparam;
struct lpfc_dmabuf *mp;
int rc;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRegLogin.rpi = 0;
if (phba->sli_rev == LPFC_SLI_REV4)
mb->un.varRegLogin.rpi = phba->sli4_hba.rpi_ids[rpi];
if (phba->sli_rev >= LPFC_SLI_REV3)
mb->un.varRegLogin.vpi = phba->vpi_ids[vpi];
mb->un.varRegLogin.did = did;
mb->mbxOwner = OWN_HOST;
/* Get a buffer to hold NPorts Service Parameters */
rc = lpfc_mbox_rsrc_prep(phba, pmb);
if (rc) {
mb->mbxCommand = MBX_REG_LOGIN64;
/* REG_LOGIN: no buffers */
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, "
"rpi x%x\n", vpi, did, rpi);
return 1;
}
/* Copy param's into a new buffer */
mp = pmb->ctx_buf;
sparam = mp->virt;
memcpy(sparam, param, sizeof (struct serv_parm));
/* Finish initializing the mailbox. */
mb->mbxCommand = MBX_REG_LOGIN64;
mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
return 0;
}
/**
* lpfc_unreg_login - Prepare a mailbox command for unregistering remote login
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @rpi: remote port identifier
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The unregistration login mailbox command is used to unregister an N_Port
* or F_Port login. This command frees an RPI context in the HBA. It has the
* effect of performing an implicit N_Port/F_Port logout.
*
* This routine prepares the mailbox command for unregistering remote port
* login.
*
* For SLI4 ports, the rpi passed to this function must be the physical
* rpi value, not the logical index.
**/
void
lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varUnregLogin.rpi = rpi;
mb->un.varUnregLogin.rsvd1 = 0;
if (phba->sli_rev >= LPFC_SLI_REV3)
mb->un.varUnregLogin.vpi = phba->vpi_ids[vpi];
mb->mbxCommand = MBX_UNREG_LOGIN;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_sli4_unreg_all_rpis - unregister all RPIs for a vport on SLI4 HBA.
* @vport: pointer to a vport object.
*
* This routine sends mailbox command to unregister all active RPIs for
* a vport.
**/
void
lpfc_sli4_unreg_all_rpis(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
/*
* For SLI4 functions, the rpi field is overloaded for
* the vport context unreg all. This routine passes
* 0 for the rpi field in lpfc_unreg_login for compatibility
* with SLI3 and then overrides the rpi field with the
* expected value for SLI4.
*/
lpfc_unreg_login(phba, vport->vpi, phba->vpi_ids[vport->vpi],
mbox);
mbox->u.mb.un.varUnregLogin.rsvd1 = 0x4000;
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->ctx_ndlp = NULL;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
mempool_free(mbox, phba->mbox_mem_pool);
}
}
/**
* lpfc_reg_vpi - Prepare a mailbox command for registering vport identifier
* @vport: pointer to a vport object.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The registration vport identifier mailbox command is used to activate a
* virtual N_Port after it has acquired an N_Port_ID. The HBA validates the
* N_Port_ID against the information in the selected virtual N_Port context
* block and marks it active to allow normal processing of IOCB commands and
* received unsolicited exchanges.
*
* This routine prepares the mailbox command for registering a virtual N_Port.
**/
void
lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_hba *phba = vport->phba;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
/*
* Set the re-reg VPI bit for f/w to update the MAC address.
*/
if ((phba->sli_rev == LPFC_SLI_REV4) &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI))
mb->un.varRegVpi.upd = 1;
mb->un.varRegVpi.vpi = phba->vpi_ids[vport->vpi];
mb->un.varRegVpi.sid = vport->fc_myDID;
if (phba->sli_rev == LPFC_SLI_REV4)
mb->un.varRegVpi.vfi = phba->sli4_hba.vfi_ids[vport->vfi];
else
mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base;
memcpy(mb->un.varRegVpi.wwn, &vport->fc_portname,
sizeof(struct lpfc_name));
mb->un.varRegVpi.wwn[0] = cpu_to_le32(mb->un.varRegVpi.wwn[0]);
mb->un.varRegVpi.wwn[1] = cpu_to_le32(mb->un.varRegVpi.wwn[1]);
mb->mbxCommand = MBX_REG_VPI;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_unreg_vpi - Prepare a mailbox command for unregistering vport id
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The unregistration vport identifier mailbox command is used to inactivate
* a virtual N_Port. The driver must have logged out and unregistered all
* remote N_Ports to abort any activity on the virtual N_Port. The HBA will
* unregisters any default RPIs associated with the specified vpi, aborting
* any active exchanges. The HBA will post the mailbox response after making
* the virtual N_Port inactive.
*
* This routine prepares the mailbox command for unregistering a virtual
* N_Port.
**/
void
lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
if (phba->sli_rev == LPFC_SLI_REV3)
mb->un.varUnregVpi.vpi = phba->vpi_ids[vpi];
else if (phba->sli_rev >= LPFC_SLI_REV4)
mb->un.varUnregVpi.sli4_vpi = phba->vpi_ids[vpi];
mb->mbxCommand = MBX_UNREG_VPI;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_config_pcb_setup - Set up IOCB rings in the Port Control Block (PCB)
* @phba: pointer to lpfc hba data structure.
*
* This routine sets up and initializes the IOCB rings in the Port Control
* Block (PCB).
**/
static void
lpfc_config_pcb_setup(struct lpfc_hba * phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
PCB_t *pcbp = phba->pcb;
dma_addr_t pdma_addr;
uint32_t offset;
uint32_t iocbCnt = 0;
int i;
pcbp->maxRing = (psli->num_rings - 1);
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->sli3_ring[i];
pring->sli.sli3.sizeCiocb =
phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE :
SLI2_IOCB_CMD_SIZE;
pring->sli.sli3.sizeRiocb =
phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE :
SLI2_IOCB_RSP_SIZE;
/* A ring MUST have both cmd and rsp entries defined to be
valid */
if ((pring->sli.sli3.numCiocb == 0) ||
(pring->sli.sli3.numRiocb == 0)) {
pcbp->rdsc[i].cmdEntries = 0;
pcbp->rdsc[i].rspEntries = 0;
pcbp->rdsc[i].cmdAddrHigh = 0;
pcbp->rdsc[i].rspAddrHigh = 0;
pcbp->rdsc[i].cmdAddrLow = 0;
pcbp->rdsc[i].rspAddrLow = 0;
pring->sli.sli3.cmdringaddr = NULL;
pring->sli.sli3.rspringaddr = NULL;
continue;
}
/* Command ring setup for ring */
pring->sli.sli3.cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
pcbp->rdsc[i].cmdEntries = pring->sli.sli3.numCiocb;
offset = (uint8_t *) &phba->IOCBs[iocbCnt] -
(uint8_t *) phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
iocbCnt += pring->sli.sli3.numCiocb;
/* Response ring setup for ring */
pring->sli.sli3.rspringaddr = (void *) &phba->IOCBs[iocbCnt];
pcbp->rdsc[i].rspEntries = pring->sli.sli3.numRiocb;
offset = (uint8_t *)&phba->IOCBs[iocbCnt] -
(uint8_t *)phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
iocbCnt += pring->sli.sli3.numRiocb;
}
}
/**
* lpfc_read_rev - Prepare a mailbox command for reading HBA revision
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The read revision mailbox command is used to read the revision levels of
* the HBA components. These components include hardware units, resident
* firmware, and available firmware. HBAs that supports SLI-3 mode of
* operation provide different response information depending on the version
* requested by the driver.
*
* This routine prepares the mailbox command for reading HBA revision
* information.
**/
void
lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRdRev.cv = 1;
mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
mb->mbxCommand = MBX_READ_REV;
mb->mbxOwner = OWN_HOST;
return;
}
void
lpfc_sli4_swap_str(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_mqe *mqe;
switch (mb->mbxCommand) {
case MBX_READ_REV:
mqe = &pmb->u.mqe;
lpfc_sli_pcimem_bcopy(mqe->un.read_rev.fw_name,
mqe->un.read_rev.fw_name, 16);
lpfc_sli_pcimem_bcopy(mqe->un.read_rev.ulp_fw_name,
mqe->un.read_rev.ulp_fw_name, 16);
break;
default:
break;
}
return;
}
/**
* lpfc_build_hbq_profile2 - Set up the HBQ Selection Profile 2
* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
* @hbq_desc: pointer to the HBQ selection profile descriptor.
*
* The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA
* tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs
* the Sequence Length Test using the fields in the Selection Profile 2
* extension in words 20:31.
**/
static void
lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
struct lpfc_hbq_init *hbq_desc)
{
hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt;
hbqmb->profiles.profile2.maxlen = hbq_desc->maxlen;
hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff;
}
/**
* lpfc_build_hbq_profile3 - Set up the HBQ Selection Profile 3
* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
* @hbq_desc: pointer to the HBQ selection profile descriptor.
*
* The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA
* tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs
* the Sequence Length Test and Byte Field Test using the fields in the
* Selection Profile 3 extension in words 20:31.
**/
static void
lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
struct lpfc_hbq_init *hbq_desc)
{
hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt;
hbqmb->profiles.profile3.maxlen = hbq_desc->maxlen;
hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff;
hbqmb->profiles.profile3.seqlenoff = hbq_desc->seqlenoff;
memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch,
sizeof(hbqmb->profiles.profile3.cmdmatch));
}
/**
* lpfc_build_hbq_profile5 - Set up the HBQ Selection Profile 5
* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
* @hbq_desc: pointer to the HBQ selection profile descriptor.
*
* The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The
* HBA tests the initial frame of an incoming sequence using the frame's
* R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test
* and Byte Field Test using the fields in the Selection Profile 5 extension
* words 20:31.
**/
static void
lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
struct lpfc_hbq_init *hbq_desc)
{
hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt;
hbqmb->profiles.profile5.maxlen = hbq_desc->maxlen;
hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff;
hbqmb->profiles.profile5.seqlenoff = hbq_desc->seqlenoff;
memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch,
sizeof(hbqmb->profiles.profile5.cmdmatch));
}
/**
* lpfc_config_hbq - Prepare a mailbox command for configuring an HBQ
* @phba: pointer to lpfc hba data structure.
* @id: HBQ identifier.
* @hbq_desc: pointer to the HBA descriptor data structure.
* @hbq_entry_index: index of the HBQ entry data structures.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure HBQ (Host Buffer Queue) mailbox command is used to configure
* an HBQ. The configuration binds events that require buffers to a particular
* ring and HBQ based on a selection profile.
*
* This routine prepares the mailbox command for configuring an HBQ.
**/
void
lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
struct lpfc_hbq_init *hbq_desc,
uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
{
int i;
MAILBOX_t *mb = &pmb->u.mb;
struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
hbqmb->hbqId = id;
hbqmb->entry_count = hbq_desc->entry_count; /* # entries in HBQ */
hbqmb->recvNotify = hbq_desc->rn; /* Receive
* Notification */
hbqmb->numMask = hbq_desc->mask_count; /* # R_CTL/TYPE masks
* # in words 0-19 */
hbqmb->profile = hbq_desc->profile; /* Selection profile:
* 0 = all,
* 7 = logentry */
hbqmb->ringMask = hbq_desc->ring_mask; /* Binds HBQ to a ring
* e.g. Ring0=b0001,
* ring2=b0100 */
hbqmb->headerLen = hbq_desc->headerLen; /* 0 if not profile 4
* or 5 */
hbqmb->logEntry = hbq_desc->logEntry; /* Set to 1 if this
* HBQ will be used
* for LogEntry
* buffers */
hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) +
hbq_entry_index * sizeof(struct lpfc_hbq_entry);
hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys);
mb->mbxCommand = MBX_CONFIG_HBQ;
mb->mbxOwner = OWN_HOST;
/* Copy info for profiles 2,3,5. Other
* profiles this area is reserved
*/
if (hbq_desc->profile == 2)
lpfc_build_hbq_profile2(hbqmb, hbq_desc);
else if (hbq_desc->profile == 3)
lpfc_build_hbq_profile3(hbqmb, hbq_desc);
else if (hbq_desc->profile == 5)
lpfc_build_hbq_profile5(hbqmb, hbq_desc);
/* Return if no rctl / type masks for this HBQ */
if (!hbq_desc->mask_count)
return;
/* Otherwise we setup specific rctl / type masks for this HBQ */
for (i = 0; i < hbq_desc->mask_count; i++) {
hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch;
hbqmb->hbqMasks[i].tmask = hbq_desc->hbqMasks[i].tmask;
hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch;
hbqmb->hbqMasks[i].rctlmask = hbq_desc->hbqMasks[i].rctlmask;
}
return;
}
/**
* lpfc_config_ring - Prepare a mailbox command for configuring an IOCB ring
* @phba: pointer to lpfc hba data structure.
* @ring: ring number/index
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure ring mailbox command is used to configure an IOCB ring. This
* configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the
* ring. This is used to map incoming sequences to a particular ring whose
* RC_CTL/TYPE mask entry matches that of the sequence. The driver should not
* attempt to configure a ring whose number is greater than the number
* specified in the Port Control Block (PCB). It is an error to issue the
* configure ring command more than once with the same ring number. The HBA
* returns an error if the driver attempts this.
*
* This routine prepares the mailbox command for configuring IOCB ring.
**/
void
lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
{
int i;
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varCfgRing.ring = ring;
mb->un.varCfgRing.maxOrigXchg = 0;
mb->un.varCfgRing.maxRespXchg = 0;
mb->un.varCfgRing.recvNotify = 1;
psli = &phba->sli;
pring = &psli->sli3_ring[ring];
mb->un.varCfgRing.numMask = pring->num_mask;
mb->mbxCommand = MBX_CONFIG_RING;
mb->mbxOwner = OWN_HOST;
/* Is this ring configured for a specific profile */
if (pring->prt[0].profile) {
mb->un.varCfgRing.profile = pring->prt[0].profile;
return;
}
/* Otherwise we setup specific rctl / type masks for this ring */
for (i = 0; i < pring->num_mask; i++) {
mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
if (mb->un.varCfgRing.rrRegs[i].rval != FC_RCTL_ELS_REQ)
mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
else
mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
}
return;
}
/**
* lpfc_config_port - Prepare a mailbox command for configuring port
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure port mailbox command is used to identify the Port Control
* Block (PCB) in the driver memory. After this command is issued, the
* driver must not access the mailbox in the HBA without first resetting
* the HBA. The HBA may copy the PCB information to internal storage for
* subsequent use; the driver can not change the PCB information unless it
* resets the HBA.
*
* This routine prepares the mailbox command for configuring port.
**/
void
lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
MAILBOX_t *mb = &pmb->u.mb;
dma_addr_t pdma_addr;
uint32_t bar_low, bar_high;
size_t offset;
struct lpfc_hgp hgp;
int i;
uint32_t pgp_offset;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_CONFIG_PORT;
mb->mbxOwner = OWN_HOST;
mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
/* Always Host Group Pointer is in SLIM */
mb->un.varCfgPort.hps = 1;
/* If HBA supports SLI=3 ask for it */
if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
if (phba->cfg_enable_bg)
mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
if (phba->max_vpi && phba->cfg_enable_npiv &&
phba->vpd.sli3Feat.cmv) {
mb->un.varCfgPort.max_vpi = LPFC_MAX_VPI;
mb->un.varCfgPort.cmv = 1;
} else
mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
} else
phba->sli_rev = LPFC_SLI_REV2;
mb->un.varCfgPort.sli_mode = phba->sli_rev;
/* If this is an SLI3 port, configure async status notification. */
if (phba->sli_rev == LPFC_SLI_REV3)
mb->un.varCfgPort.casabt = 1;
/* Now setup pcb */
phba->pcb->type = TYPE_NATIVE_SLI2;
phba->pcb->feature = FEATURE_INITIAL_SLI2;
/* Setup Mailbox pointers */
phba->pcb->mailBoxSize = sizeof(MAILBOX_t) + MAILBOX_EXT_SIZE;
offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr);
phba->pcb->mbAddrLow = putPaddrLow(pdma_addr);
/*
* Setup Host Group ring pointer.
*
* For efficiency reasons, the ring get/put pointers can be
* placed in adapter memory (SLIM) rather than in host memory.
* This allows firmware to avoid PCI reads/writes when updating
* and checking pointers.
*
* The firmware recognizes the use of SLIM memory by comparing
* the address of the get/put pointers structure with that of
* the SLIM BAR (BAR0).
*
* Caution: be sure to use the PCI config space value of BAR0/BAR1
* (the hardware's view of the base address), not the OS's
* value of pci_resource_start() as the OS value may be a cookie
* for ioremap/iomap.
*/
pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
/*
* Set up HGP - Port Memory
*
* The port expects the host get/put pointers to reside in memory
* following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes)
* area of SLIM. In SLI-2 mode, there's an additional 16 reserved
* words (0x40 bytes). This area is not reserved if HBQs are
* configured in SLI-3.
*
* CR0Put - SLI2(no HBQs) = 0xc0, With HBQs = 0x80
* RR0Get 0xc4 0x84
* CR1Put 0xc8 0x88
* RR1Get 0xcc 0x8c
* CR2Put 0xd0 0x90
* RR2Get 0xd4 0x94
* CR3Put 0xd8 0x98
* RR3Get 0xdc 0x9c
*
* Reserved 0xa0-0xbf
* If HBQs configured:
* HBQ 0 Put ptr 0xc0
* HBQ 1 Put ptr 0xc4
* HBQ 2 Put ptr 0xc8
* ......
* HBQ(M-1)Put Pointer 0xc0+(M-1)*4
*
*/
if (phba->cfg_hostmem_hgp && phba->sli_rev != 3) {
phba->host_gp = (struct lpfc_hgp __iomem *)
&phba->mbox->us.s2.host[0];
phba->hbq_put = NULL;
offset = (uint8_t *)&phba->mbox->us.s2.host -
(uint8_t *)phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
phba->pcb->hgpAddrHigh = putPaddrHigh(pdma_addr);
phba->pcb->hgpAddrLow = putPaddrLow(pdma_addr);
} else {
/* Always Host Group Pointer is in SLIM */
mb->un.varCfgPort.hps = 1;
if (phba->sli_rev == 3) {
phba->host_gp = &mb_slim->us.s3.host[0];
phba->hbq_put = &mb_slim->us.s3.hbq_put[0];
} else {
phba->host_gp = &mb_slim->us.s2.host[0];
phba->hbq_put = NULL;
}
/* mask off BAR0's flag bits 0 - 3 */
phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
(void __iomem *)phba->host_gp -
(void __iomem *)phba->MBslimaddr;
if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
phba->pcb->hgpAddrHigh = bar_high;
else
phba->pcb->hgpAddrHigh = 0;
/* write HGP data to SLIM at the required longword offset */
memset(&hgp, 0, sizeof(struct lpfc_hgp));
for (i = 0; i < phba->sli.num_rings; i++) {
lpfc_memcpy_to_slim(phba->host_gp + i, &hgp,
sizeof(*phba->host_gp));
}
}
/* Setup Port Group offset */
if (phba->sli_rev == 3)
pgp_offset = offsetof(struct lpfc_sli2_slim,
mbx.us.s3_pgp.port);
else
pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port);
pdma_addr = phba->slim2p.phys + pgp_offset;
phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr);
phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr);
/* Use callback routine to setp rings in the pcb */
lpfc_config_pcb_setup(phba);
/* special handling for LC HBAs */
if (lpfc_is_LC_HBA(phba->pcidev->device)) {
uint32_t hbainit[5];
lpfc_hba_init(phba, hbainit);
memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
}
/* Swap PCB if needed */
lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t));
}
/**
* lpfc_kill_board - Prepare a mailbox command for killing board
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The kill board mailbox command is used to tell firmware to perform a
* graceful shutdown of a channel on a specified board to prepare for reset.
* When the kill board mailbox command is received, the ER3 bit is set to 1
* in the Host Status register and the ER Attention bit is set to 1 in the
* Host Attention register of the HBA function that received the kill board
* command.
*
* This routine prepares the mailbox command for killing the board in
* preparation for a graceful shutdown.
**/
void
lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_KILL_BOARD;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_mbox_put - Put a mailbox cmd into the tail of driver's mailbox queue
* @phba: pointer to lpfc hba data structure.
* @mbq: pointer to the driver internal queue element for mailbox command.
*
* Driver maintains a internal mailbox command queue implemented as a linked
* list. When a mailbox command is issued, it shall be put into the mailbox
* command queue such that they shall be processed orderly as HBA can process
* one mailbox command at a time.
**/
void
lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
{
struct lpfc_sli *psli;
psli = &phba->sli;
list_add_tail(&mbq->list, &psli->mboxq);
psli->mboxq_cnt++;
return;
}
/**
* lpfc_mbox_get - Remove a mailbox cmd from the head of driver's mailbox queue
* @phba: pointer to lpfc hba data structure.
*
* Driver maintains a internal mailbox command queue implemented as a linked
* list. When a mailbox command is issued, it shall be put into the mailbox
* command queue such that they shall be processed orderly as HBA can process
* one mailbox command at a time. After HBA finished processing a mailbox
* command, the driver will remove a pending mailbox command from the head of
* the mailbox command queue and send to the HBA for processing.
*
* Return codes
* pointer to the driver internal queue element for mailbox command.
**/
LPFC_MBOXQ_t *
lpfc_mbox_get(struct lpfc_hba * phba)
{
LPFC_MBOXQ_t *mbq = NULL;
struct lpfc_sli *psli = &phba->sli;
list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list);
if (mbq)
psli->mboxq_cnt--;
return mbq;
}
/**
* __lpfc_mbox_cmpl_put - Put mailbox cmd into mailbox cmd complete list
* @phba: pointer to lpfc hba data structure.
* @mbq: pointer to the driver internal queue element for mailbox command.
*
* This routine put the completed mailbox command into the mailbox command
* complete list. This is the unlocked version of the routine. The mailbox
* complete list is used by the driver worker thread to process mailbox
* complete callback functions outside the driver interrupt handler.
**/
void
__lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
{
list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
}
/**
* lpfc_mbox_cmpl_put - Put mailbox command into mailbox command complete list
* @phba: pointer to lpfc hba data structure.
* @mbq: pointer to the driver internal queue element for mailbox command.
*
* This routine put the completed mailbox command into the mailbox command
* complete list. This is the locked version of the routine. The mailbox
* complete list is used by the driver worker thread to process mailbox
* complete callback functions outside the driver interrupt handler.
**/
void
lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
{
unsigned long iflag;
/* This function expects to be called from interrupt context */
spin_lock_irqsave(&phba->hbalock, iflag);
__lpfc_mbox_cmpl_put(phba, mbq);
spin_unlock_irqrestore(&phba->hbalock, iflag);
return;
}
/**
* lpfc_mbox_cmd_check - Check the validality of a mailbox command
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to the driver internal queue element for mailbox command.
*
* This routine is to check whether a mailbox command is valid to be issued.
* This check will be performed by both the mailbox issue API when a client
* is to issue a mailbox command to the mailbox transport.
*
* Return 0 - pass the check, -ENODEV - fail the check
**/
int
lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
/* Mailbox command that have a completion handler must also have a
* vport specified.
*/
if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
if (!mboxq->vport) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
"1814 Mbox x%x failed, no vport\n",
mboxq->u.mb.mbxCommand);
dump_stack();
return -ENODEV;
}
}
return 0;
}
/**
* lpfc_mbox_dev_check - Check the device state for issuing a mailbox command
* @phba: pointer to lpfc hba data structure.
*
* This routine is to check whether the HBA device is ready for posting a
* mailbox command. It is used by the mailbox transport API at the time the
* to post a mailbox command to the device.
*
* Return 0 - pass the check, -ENODEV - fail the check
**/
int
lpfc_mbox_dev_check(struct lpfc_hba *phba)
{
/* If the PCI channel is in offline state, do not issue mbox */
if (unlikely(pci_channel_offline(phba->pcidev)))
return -ENODEV;
/* If the HBA is in error state, do not issue mbox */
if (phba->link_state == LPFC_HBA_ERROR)
return -ENODEV;
return 0;
}
/**
* lpfc_mbox_tmo_val - Retrieve mailbox command timeout value
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to the driver internal queue element for mailbox command.
*
* This routine retrieves the proper timeout value according to the mailbox
* command code.
*
* Return codes
* Timeout value to be used for the given mailbox command
**/
int
lpfc_mbox_tmo_val(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
MAILBOX_t *mbox = &mboxq->u.mb;
uint8_t subsys, opcode;
switch (mbox->mbxCommand) {
case MBX_WRITE_NV: /* 0x03 */
case MBX_DUMP_MEMORY: /* 0x17 */
case MBX_UPDATE_CFG: /* 0x1B */
case MBX_DOWN_LOAD: /* 0x1C */
case MBX_DEL_LD_ENTRY: /* 0x1D */
case MBX_WRITE_VPARMS: /* 0x32 */
case MBX_LOAD_AREA: /* 0x81 */
case MBX_WRITE_WWN: /* 0x98 */
case MBX_LOAD_EXP_ROM: /* 0x9C */
case MBX_ACCESS_VDATA: /* 0xA5 */
return LPFC_MBOX_TMO_FLASH_CMD;
case MBX_SLI4_CONFIG: /* 0x9b */
subsys = lpfc_sli_config_mbox_subsys_get(phba, mboxq);
opcode = lpfc_sli_config_mbox_opcode_get(phba, mboxq);
if (subsys == LPFC_MBOX_SUBSYSTEM_COMMON) {
switch (opcode) {
case LPFC_MBOX_OPCODE_READ_OBJECT:
case LPFC_MBOX_OPCODE_WRITE_OBJECT:
case LPFC_MBOX_OPCODE_READ_OBJECT_LIST:
case LPFC_MBOX_OPCODE_DELETE_OBJECT:
case LPFC_MBOX_OPCODE_GET_PROFILE_LIST:
case LPFC_MBOX_OPCODE_SET_ACT_PROFILE:
case LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG:
case LPFC_MBOX_OPCODE_SET_PROFILE_CONFIG:
case LPFC_MBOX_OPCODE_GET_FACTORY_PROFILE_CONFIG:
case LPFC_MBOX_OPCODE_GET_PROFILE_CAPACITIES:
case LPFC_MBOX_OPCODE_SEND_ACTIVATION:
case LPFC_MBOX_OPCODE_RESET_LICENSES:
case LPFC_MBOX_OPCODE_SET_BOOT_CONFIG:
case LPFC_MBOX_OPCODE_GET_VPD_DATA:
case LPFC_MBOX_OPCODE_SET_PHYSICAL_LINK_CONFIG:
return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
}
}
if (subsys == LPFC_MBOX_SUBSYSTEM_FCOE) {
switch (opcode) {
case LPFC_MBOX_OPCODE_FCOE_SET_FCLINK_SETTINGS:
return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
}
}
return LPFC_MBOX_SLI4_CONFIG_TMO;
}
return LPFC_MBOX_TMO;
}
/**
* lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command
* @mbox: pointer to lpfc mbox command.
* @sgentry: sge entry index.
* @phyaddr: physical address for the sge
* @length: Length of the sge.
*
* This routine sets up an entry in the non-embedded mailbox command at the sge
* index location.
**/
void
lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry,
dma_addr_t phyaddr, uint32_t length)
{
struct lpfc_mbx_nembed_cmd *nembed_sge;
nembed_sge = (struct lpfc_mbx_nembed_cmd *)
&mbox->u.mqe.un.nembed_cmd;
nembed_sge->sge[sgentry].pa_lo = putPaddrLow(phyaddr);
nembed_sge->sge[sgentry].pa_hi = putPaddrHigh(phyaddr);
nembed_sge->sge[sgentry].length = length;
}
/**
* lpfc_sli4_mbx_sge_get - Get a sge entry from non-embedded mailbox command
* @mbox: pointer to lpfc mbox command.
* @sgentry: sge entry index.
* @sge: pointer to lpfc mailbox sge to load into.
*
* This routine gets an entry from the non-embedded mailbox command at the sge
* index location.
**/
void
lpfc_sli4_mbx_sge_get(struct lpfcMboxq *mbox, uint32_t sgentry,
struct lpfc_mbx_sge *sge)
{
struct lpfc_mbx_nembed_cmd *nembed_sge;
nembed_sge = (struct lpfc_mbx_nembed_cmd *)
&mbox->u.mqe.un.nembed_cmd;
sge->pa_lo = nembed_sge->sge[sgentry].pa_lo;
sge->pa_hi = nembed_sge->sge[sgentry].pa_hi;
sge->length = nembed_sge->sge[sgentry].length;
}
/**
* lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command
* @phba: pointer to lpfc hba data structure.
* @mbox: pointer to lpfc mbox command.
*
* This routine cleans up and releases an SLI4 mailbox command that was
* configured using lpfc_sli4_config. It accounts for the embedded and
* non-embedded config types.
**/
void
lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{
struct lpfc_mbx_sli4_config *sli4_cfg;
struct lpfc_mbx_sge sge;
dma_addr_t phyaddr;
uint32_t sgecount, sgentry;
sli4_cfg = &mbox->u.mqe.un.sli4_config;
/* For embedded mbox command, just free the mbox command */
if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
mempool_free(mbox, phba->mbox_mem_pool);
return;
}
/* For non-embedded mbox command, we need to free the pages first */
sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr);
/* There is nothing we can do if there is no sge address array */
if (unlikely(!mbox->sge_array)) {
mempool_free(mbox, phba->mbox_mem_pool);
return;
}
/* Each non-embedded DMA memory was allocated in the length of a page */
for (sgentry = 0; sgentry < sgecount; sgentry++) {
lpfc_sli4_mbx_sge_get(mbox, sgentry, &sge);
phyaddr = getPaddr(sge.pa_hi, sge.pa_lo);
dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
mbox->sge_array->addr[sgentry], phyaddr);
}
/* Free the sge address array memory */
kfree(mbox->sge_array);
/* Finally, free the mailbox command itself */
mempool_free(mbox, phba->mbox_mem_pool);
}
/**
* lpfc_sli4_config - Initialize the SLI4 Config Mailbox command
* @phba: pointer to lpfc hba data structure.
* @mbox: pointer to lpfc mbox command.
* @subsystem: The sli4 config sub mailbox subsystem.
* @opcode: The sli4 config sub mailbox command opcode.
* @length: Length of the sli4 config mailbox command (including sub-header).
* @emb: True if embedded mbox command should be setup.
*
* This routine sets up the header fields of SLI4 specific mailbox command
* for sending IOCTL command.
*
* Return: the actual length of the mbox command allocated (mostly useful
* for none embedded mailbox command).
**/
int
lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb)
{
struct lpfc_mbx_sli4_config *sli4_config;
union lpfc_sli4_cfg_shdr *cfg_shdr = NULL;
uint32_t alloc_len;
uint32_t resid_len;
uint32_t pagen, pcount;
void *viraddr;
dma_addr_t phyaddr;
/* Set up SLI4 mailbox command header fields */
memset(mbox, 0, sizeof(*mbox));
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG);
/* Set up SLI4 ioctl command header fields */
sli4_config = &mbox->u.mqe.un.sli4_config;
/* Setup for the embedded mbox command */
if (emb) {
/* Set up main header fields */
bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
sli4_config->header.cfg_mhdr.payload_length = length;
/* Set up sub-header fields following main header */
bf_set(lpfc_mbox_hdr_opcode,
&sli4_config->header.cfg_shdr.request, opcode);
bf_set(lpfc_mbox_hdr_subsystem,
&sli4_config->header.cfg_shdr.request, subsystem);
sli4_config->header.cfg_shdr.request.request_length =
length - LPFC_MBX_CMD_HDR_LENGTH;
return length;
}
/* Setup for the non-embedded mbox command */
pcount = (SLI4_PAGE_ALIGN(length))/SLI4_PAGE_SIZE;
pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ?
LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount;
/* Allocate record for keeping SGE virtual addresses */
mbox->sge_array = kzalloc(sizeof(struct lpfc_mbx_nembed_sge_virt),
GFP_KERNEL);
if (!mbox->sge_array) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"2527 Failed to allocate non-embedded SGE "
"array.\n");
return 0;
}
for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) {
/* The DMA memory is always allocated in the length of a
* page even though the last SGE might not fill up to a
* page, this is used as a priori size of SLI4_PAGE_SIZE for
* the later DMA memory free.
*/
viraddr = dma_alloc_coherent(&phba->pcidev->dev,
SLI4_PAGE_SIZE, &phyaddr,
GFP_KERNEL);
/* In case of malloc fails, proceed with whatever we have */
if (!viraddr)
break;
mbox->sge_array->addr[pagen] = viraddr;
/* Keep the first page for later sub-header construction */
if (pagen == 0)
cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr;
resid_len = length - alloc_len;
if (resid_len > SLI4_PAGE_SIZE) {
lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
SLI4_PAGE_SIZE);
alloc_len += SLI4_PAGE_SIZE;
} else {
lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
resid_len);
alloc_len = length;
}
}
/* Set up main header fields in mailbox command */
sli4_config->header.cfg_mhdr.payload_length = alloc_len;
bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen);
/* Set up sub-header fields into the first page */
if (pagen > 0) {
bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode);
bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem);
cfg_shdr->request.request_length =
alloc_len - sizeof(union lpfc_sli4_cfg_shdr);
}
/* The sub-header is in DMA memory, which needs endian converstion */
if (cfg_shdr)
lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
sizeof(union lpfc_sli4_cfg_shdr));
return alloc_len;
}
/**
* lpfc_sli4_mbox_rsrc_extent - Initialize the opcode resource extent.
* @phba: pointer to lpfc hba data structure.
* @mbox: pointer to an allocated lpfc mbox resource.
* @exts_count: the number of extents, if required, to allocate.
* @rsrc_type: the resource extent type.
* @emb: true if LPFC_SLI4_MBX_EMBED. false if LPFC_SLI4_MBX_NEMBED.
*
* This routine completes the subcommand header for SLI4 resource extent
* mailbox commands. It is called after lpfc_sli4_config. The caller must
* pass an allocated mailbox and the attributes required to initialize the
* mailbox correctly.
*
* Return: the actual length of the mbox command allocated.
**/
int
lpfc_sli4_mbox_rsrc_extent(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
uint16_t exts_count, uint16_t rsrc_type, bool emb)
{
uint8_t opcode = 0;
struct lpfc_mbx_nembed_rsrc_extent *n_rsrc_extnt = NULL;
void *virtaddr = NULL;
/* Set up SLI4 ioctl command header fields */
if (emb == LPFC_SLI4_MBX_NEMBED) {
/* Get the first SGE entry from the non-embedded DMA memory */
virtaddr = mbox->sge_array->addr[0];
if (virtaddr == NULL)
return 1;
n_rsrc_extnt = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
}
/*
* The resource type is common to all extent Opcodes and resides in the
* same position.
*/
if (emb == LPFC_SLI4_MBX_EMBED)
bf_set(lpfc_mbx_alloc_rsrc_extents_type,
&mbox->u.mqe.un.alloc_rsrc_extents.u.req,
rsrc_type);
else {
/* This is DMA data. Byteswap is required. */
bf_set(lpfc_mbx_alloc_rsrc_extents_type,
n_rsrc_extnt, rsrc_type);
lpfc_sli_pcimem_bcopy(&n_rsrc_extnt->word4,
&n_rsrc_extnt->word4,
sizeof(uint32_t));
}
/* Complete the initialization for the particular Opcode. */
opcode = lpfc_sli_config_mbox_opcode_get(phba, mbox);
switch (opcode) {
case LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT:
if (emb == LPFC_SLI4_MBX_EMBED)
bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
&mbox->u.mqe.un.alloc_rsrc_extents.u.req,
exts_count);
else
bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
n_rsrc_extnt, exts_count);
break;
case LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT:
case LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO:
case LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT:
/* Initialization is complete.*/
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"2929 Resource Extent Opcode x%x is "
"unsupported\n", opcode);
return 1;
}
return 0;
}
/**
* lpfc_sli_config_mbox_subsys_get - Get subsystem from a sli_config mbox cmd
* @phba: pointer to lpfc hba data structure.
* @mbox: pointer to lpfc mbox command queue entry.
*
* This routine gets the subsystem from a SLI4 specific SLI_CONFIG mailbox
* command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if the
* sub-header is not present, subsystem LPFC_MBOX_SUBSYSTEM_NA (0x0) shall
* be returned.
**/
uint8_t
lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
struct lpfc_mbx_sli4_config *sli4_cfg;
union lpfc_sli4_cfg_shdr *cfg_shdr;
if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
return LPFC_MBOX_SUBSYSTEM_NA;
sli4_cfg = &mbox->u.mqe.un.sli4_config;
/* For embedded mbox command, get opcode from embedded sub-header*/
if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
}
/* For non-embedded mbox command, get opcode from first dma page */
if (unlikely(!mbox->sge_array))
return LPFC_MBOX_SUBSYSTEM_NA;
cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
}
/**
* lpfc_sli_config_mbox_opcode_get - Get opcode from a sli_config mbox cmd
* @phba: pointer to lpfc hba data structure.
* @mbox: pointer to lpfc mbox command queue entry.
*
* This routine gets the opcode from a SLI4 specific SLI_CONFIG mailbox
* command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if
* the sub-header is not present, opcode LPFC_MBOX_OPCODE_NA (0x0) be
* returned.
**/
uint8_t
lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
struct lpfc_mbx_sli4_config *sli4_cfg;
union lpfc_sli4_cfg_shdr *cfg_shdr;
if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
return LPFC_MBOX_OPCODE_NA;
sli4_cfg = &mbox->u.mqe.un.sli4_config;
/* For embedded mbox command, get opcode from embedded sub-header*/
if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
}
/* For non-embedded mbox command, get opcode from first dma page */
if (unlikely(!mbox->sge_array))
return LPFC_MBOX_OPCODE_NA;
cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
}
/**
* lpfc_sli4_mbx_read_fcf_rec - Allocate and construct read fcf mbox cmd
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to lpfc mbox command.
* @fcf_index: index to fcf table.
*
* This routine routine allocates and constructs non-embedded mailbox command
* for reading a FCF table entry referred by @fcf_index.
*
* Return: pointer to the mailbox command constructed if successful, otherwise
* NULL.
**/
int
lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *phba,
struct lpfcMboxq *mboxq,
uint16_t fcf_index)
{
void *virt_addr;
uint8_t *bytep;
struct lpfc_mbx_sge sge;
uint32_t alloc_len, req_len;
struct lpfc_mbx_read_fcf_tbl *read_fcf;
if (!mboxq)
return -ENOMEM;
req_len = sizeof(struct fcf_record) +
sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
/* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
LPFC_SLI4_MBX_NEMBED);
if (alloc_len < req_len) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"0291 Allocated DMA memory size (x%x) is "
"less than the requested DMA memory "
"size (x%x)\n", alloc_len, req_len);
return -ENOMEM;
}
/* Get the first SGE entry from the non-embedded DMA memory. This
* routine only uses a single SGE.
*/
lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
virt_addr = mboxq->sge_array->addr[0];
read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
/* Set up command fields */
bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
/* Perform necessary endian conversion */
bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
return 0;
}
/**
* lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to lpfc mbox command.
*
* This routine sets up the mailbox for an SLI4 REQUEST_FEATURES
* mailbox command.
**/
void
lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq)
{
/* Set up SLI4 mailbox command header fields */
memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
bf_set(lpfc_mqe_command, &mboxq->u.mqe, MBX_SLI4_REQ_FTRS);
/* Set up host requested features. */
bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
bf_set(lpfc_mbx_rq_ftr_rq_perfh, &mboxq->u.mqe.un.req_ftrs, 1);
/* Enable DIF (block guard) only if configured to do so. */
if (phba->cfg_enable_bg)
bf_set(lpfc_mbx_rq_ftr_rq_dif, &mboxq->u.mqe.un.req_ftrs, 1);
/* Enable NPIV only if configured to do so. */
if (phba->max_vpi && phba->cfg_enable_npiv)
bf_set(lpfc_mbx_rq_ftr_rq_npiv, &mboxq->u.mqe.un.req_ftrs, 1);
if (phba->nvmet_support) {
bf_set(lpfc_mbx_rq_ftr_rq_mrqp, &mboxq->u.mqe.un.req_ftrs, 1);
/* iaab/iaar NOT set for now */
bf_set(lpfc_mbx_rq_ftr_rq_iaab, &mboxq->u.mqe.un.req_ftrs, 0);
bf_set(lpfc_mbx_rq_ftr_rq_iaar, &mboxq->u.mqe.un.req_ftrs, 0);
}
/* Enable Application Services Header for appheader VMID */
if (phba->cfg_vmid_app_header) {
bf_set(lpfc_mbx_rq_ftr_rq_ashdr, &mboxq->u.mqe.un.req_ftrs, 1);
bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 1);
}
return;
}
/**
* lpfc_init_vfi - Initialize the INIT_VFI mailbox command
* @mbox: pointer to lpfc mbox command to initialize.
* @vport: Vport associated with the VF.
*
* This routine initializes @mbox to all zeros and then fills in the mailbox
* fields from @vport. INIT_VFI configures virtual fabrics identified by VFI
* in the context of an FCF. The driver issues this command to setup a VFI
* before issuing a FLOGI to login to the VSAN. The driver should also issue a
* REG_VFI after a successful VSAN login.
**/
void
lpfc_init_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
{
struct lpfc_mbx_init_vfi *init_vfi;
memset(mbox, 0, sizeof(*mbox));
mbox->vport = vport;
init_vfi = &mbox->u.mqe.un.init_vfi;
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VFI);
bf_set(lpfc_init_vfi_vr, init_vfi, 1);
bf_set(lpfc_init_vfi_vt, init_vfi, 1);
bf_set(lpfc_init_vfi_vp, init_vfi, 1);
bf_set(lpfc_init_vfi_vfi, init_vfi,
vport->phba->sli4_hba.vfi_ids[vport->vfi]);
bf_set(lpfc_init_vfi_vpi, init_vfi,
vport->phba->vpi_ids[vport->vpi]);
bf_set(lpfc_init_vfi_fcfi, init_vfi,
vport->phba->fcf.fcfi);
}
/**
* lpfc_reg_vfi - Initialize the REG_VFI mailbox command
* @mbox: pointer to lpfc mbox command to initialize.
* @vport: vport associated with the VF.
* @phys: BDE DMA bus address used to send the service parameters to the HBA.
*
* This routine initializes @mbox to all zeros and then fills in the mailbox
* fields from @vport, and uses @buf as a DMAable buffer to send the vport's
* fc service parameters to the HBA for this VFI. REG_VFI configures virtual
* fabrics identified by VFI in the context of an FCF.
**/
void
lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
{
struct lpfc_mbx_reg_vfi *reg_vfi;
struct lpfc_hba *phba = vport->phba;
uint8_t bbscn_fabric = 0, bbscn_max = 0, bbscn_def = 0;
memset(mbox, 0, sizeof(*mbox));
reg_vfi = &mbox->u.mqe.un.reg_vfi;
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_VFI);
bf_set(lpfc_reg_vfi_vp, reg_vfi, 1);
bf_set(lpfc_reg_vfi_vfi, reg_vfi,
phba->sli4_hba.vfi_ids[vport->vfi]);
bf_set(lpfc_reg_vfi_fcfi, reg_vfi, phba->fcf.fcfi);
bf_set(lpfc_reg_vfi_vpi, reg_vfi, phba->vpi_ids[vport->vpi]);
memcpy(reg_vfi->wwn, &vport->fc_portname, sizeof(struct lpfc_name));
reg_vfi->wwn[0] = cpu_to_le32(reg_vfi->wwn[0]);
reg_vfi->wwn[1] = cpu_to_le32(reg_vfi->wwn[1]);
reg_vfi->e_d_tov = phba->fc_edtov;
reg_vfi->r_a_tov = phba->fc_ratov;
if (phys) {
reg_vfi->bde.addrHigh = putPaddrHigh(phys);
reg_vfi->bde.addrLow = putPaddrLow(phys);
reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
}
bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
/* Only FC supports upd bit */
if ((phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) &&
(vport->fc_flag & FC_VFI_REGISTERED) &&
(!phba->fc_topology_changed))
bf_set(lpfc_reg_vfi_upd, reg_vfi, 1);
bf_set(lpfc_reg_vfi_bbcr, reg_vfi, 0);
bf_set(lpfc_reg_vfi_bbscn, reg_vfi, 0);
bbscn_fabric = (phba->fc_fabparam.cmn.bbRcvSizeMsb >> 4) & 0xF;
if (phba->bbcredit_support && phba->cfg_enable_bbcr &&
bbscn_fabric != 0) {
bbscn_max = bf_get(lpfc_bbscn_max,
&phba->sli4_hba.bbscn_params);
if (bbscn_fabric <= bbscn_max) {
bbscn_def = bf_get(lpfc_bbscn_def,
&phba->sli4_hba.bbscn_params);
if (bbscn_fabric > bbscn_def)
bf_set(lpfc_reg_vfi_bbscn, reg_vfi,
bbscn_fabric);
else
bf_set(lpfc_reg_vfi_bbscn, reg_vfi, bbscn_def);
bf_set(lpfc_reg_vfi_bbcr, reg_vfi, 1);
}
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_MBOX,
"3134 Register VFI, mydid:x%x, fcfi:%d, "
" vfi:%d, vpi:%d, fc_pname:%x%x fc_flag:x%x"
" port_state:x%x topology chg:%d bbscn_fabric :%d\n",
vport->fc_myDID,
phba->fcf.fcfi,
phba->sli4_hba.vfi_ids[vport->vfi],
phba->vpi_ids[vport->vpi],
reg_vfi->wwn[0], reg_vfi->wwn[1], vport->fc_flag,
vport->port_state, phba->fc_topology_changed,
bbscn_fabric);
}
/**
* lpfc_init_vpi - Initialize the INIT_VPI mailbox command
* @phba: pointer to the hba structure to init the VPI for.
* @mbox: pointer to lpfc mbox command to initialize.
* @vpi: VPI to be initialized.
*
* The INIT_VPI mailbox command supports virtual N_Ports. The driver uses the
* command to activate a virtual N_Port. The HBA assigns a MAC address to use
* with the virtual N Port. The SLI Host issues this command before issuing a
* FDISC to connect to the Fabric. The SLI Host should issue a REG_VPI after a
* successful virtual NPort login.
**/
void
lpfc_init_vpi(struct lpfc_hba *phba, struct lpfcMboxq *mbox, uint16_t vpi)
{
memset(mbox, 0, sizeof(*mbox));
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VPI);
bf_set(lpfc_init_vpi_vpi, &mbox->u.mqe.un.init_vpi,
phba->vpi_ids[vpi]);
bf_set(lpfc_init_vpi_vfi, &mbox->u.mqe.un.init_vpi,
phba->sli4_hba.vfi_ids[phba->pport->vfi]);
}
/**
* lpfc_unreg_vfi - Initialize the UNREG_VFI mailbox command
* @mbox: pointer to lpfc mbox command to initialize.
* @vport: vport associated with the VF.
*
* The UNREG_VFI mailbox command causes the SLI Host to put a virtual fabric
* (logical NPort) into the inactive state. The SLI Host must have logged out
* and unregistered all remote N_Ports to abort any activity on the virtual
* fabric. The SLI Port posts the mailbox response after marking the virtual
* fabric inactive.
**/
void
lpfc_unreg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
{
memset(mbox, 0, sizeof(*mbox));
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_VFI);
bf_set(lpfc_unreg_vfi_vfi, &mbox->u.mqe.un.unreg_vfi,
vport->phba->sli4_hba.vfi_ids[vport->vfi]);
}
/**
* lpfc_sli4_dump_cfg_rg23 - Dump sli4 port config region 23
* @phba: pointer to the hba structure containing.
* @mbox: pointer to lpfc mbox command to initialize.
*
* This function create a SLI4 dump mailbox command to dump configure
* region 23.
**/
int
lpfc_sli4_dump_cfg_rg23(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{
struct lpfc_dmabuf *mp = NULL;
MAILBOX_t *mb;
int rc;
memset(mbox, 0, sizeof(*mbox));
mb = &mbox->u.mb;
rc = lpfc_mbox_rsrc_prep(phba, mbox);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"2569 %s: memory allocation failed\n",
__func__);
return 1;
}
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.region_id = DMP_REGION_23;
mb->un.varDmp.sli4_length = DMP_RGN23_SIZE;
mp = mbox->ctx_buf;
mb->un.varWords[3] = putPaddrLow(mp->phys);
mb->un.varWords[4] = putPaddrHigh(mp->phys);
return 0;
}
static void
lpfc_mbx_cmpl_rdp_link_stat(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
MAILBOX_t *mb;
int rc = FAILURE;
struct lpfc_rdp_context *rdp_context =
(struct lpfc_rdp_context *)(mboxq->ctx_ndlp);
mb = &mboxq->u.mb;
if (mb->mbxStatus)
goto mbx_failed;
memcpy(&rdp_context->link_stat, &mb->un.varRdLnk, sizeof(READ_LNK_VAR));
rc = SUCCESS;
mbx_failed:
lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);
rdp_context->cmpl(phba, rdp_context, rc);
}
static void
lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
struct lpfc_rdp_context *rdp_context =
(struct lpfc_rdp_context *)(mbox->ctx_ndlp);
if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
goto error_mbox_free;
lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2,
DMP_SFF_PAGE_A2_SIZE);
lpfc_read_lnk_stat(phba, mbox);
mbox->vport = rdp_context->ndlp->vport;
/* Save the dma buffer for cleanup in the final completion. */
mbox->ctx_buf = mp;
mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_link_stat;
mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED)
goto error_mbox_free;
return;
error_mbox_free:
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
rdp_context->cmpl(phba, rdp_context, FAILURE);
}
void
lpfc_mbx_cmpl_rdp_page_a0(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
int rc;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(mbox->ctx_buf);
struct lpfc_rdp_context *rdp_context =
(struct lpfc_rdp_context *)(mbox->ctx_ndlp);
if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
goto error;
lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0,
DMP_SFF_PAGE_A0_SIZE);
memset(mbox, 0, sizeof(*mbox));
memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE);
INIT_LIST_HEAD(&mp->list);
/* save address for completion */
mbox->ctx_buf = mp;
mbox->vport = rdp_context->ndlp->vport;
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
bf_set(lpfc_mbx_memory_dump_type3_type,
&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
bf_set(lpfc_mbx_memory_dump_type3_link,
&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
bf_set(lpfc_mbx_memory_dump_type3_page_no,
&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2);
bf_set(lpfc_mbx_memory_dump_type3_length,
&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE);
mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a2;
mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
goto error;
return;
error:
lpfc_mbox_rsrc_cleanup(phba, mbox, MBOX_THD_UNLOCKED);
rdp_context->cmpl(phba, rdp_context, FAILURE);
}
/*
* lpfc_sli4_dump_page_a0 - Dump sli4 read SFP Diagnostic.
* @phba: pointer to the hba structure containing.
* @mbox: pointer to lpfc mbox command to initialize.
*
* This function create a SLI4 dump mailbox command to dump configure
* type 3 page 0xA0.
*/
int
lpfc_sli4_dump_page_a0(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{
int rc;
struct lpfc_dmabuf *mp = NULL;
memset(mbox, 0, sizeof(*mbox));
rc = lpfc_mbox_rsrc_prep(phba, mbox);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"3569 dump type 3 page 0xA0 allocation failed\n");
return 1;
}
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
bf_set(lpfc_mbx_memory_dump_type3_type,
&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
bf_set(lpfc_mbx_memory_dump_type3_link,
&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
bf_set(lpfc_mbx_memory_dump_type3_page_no,
&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A0);
bf_set(lpfc_mbx_memory_dump_type3_length,
&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE);
mp = mbox->ctx_buf;
mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
return 0;
}
/**
* lpfc_reg_fcfi - Initialize the REG_FCFI mailbox command
* @phba: pointer to the hba structure containing the FCF index and RQ ID.
* @mbox: pointer to lpfc mbox command to initialize.
*
* The REG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). The
* SLI Host uses the command to activate an FCF after it has acquired FCF
* information via a READ_FCF mailbox command. This mailbox command also is used
* to indicate where received unsolicited frames from this FCF will be sent. By
* default this routine will set up the FCF to forward all unsolicited frames
* to the RQ ID passed in the @phba. This can be overridden by the caller for
* more complicated setups.
**/
void
lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
{
struct lpfc_mbx_reg_fcfi *reg_fcfi;
memset(mbox, 0, sizeof(*mbox));
reg_fcfi = &mbox->u.mqe.un.reg_fcfi;
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI);
if (phba->nvmet_support == 0) {
bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi,
phba->sli4_hba.hdr_rq->queue_id);
/* Match everything - rq_id0 */
bf_set(lpfc_reg_fcfi_type_match0, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_type_mask0, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_rctl_match0, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_rctl_mask0, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID);
/* addr mode is bit wise inverted value of fcf addr_mode */
bf_set(lpfc_reg_fcfi_mam, reg_fcfi,
(~phba->fcf.addr_mode) & 0x3);
} else {
/* This is ONLY for NVMET MRQ == 1 */
if (phba->cfg_nvmet_mrq != 1)
return;
bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi,
phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id);
/* Match type FCP - rq_id0 */
bf_set(lpfc_reg_fcfi_type_match0, reg_fcfi, FC_TYPE_FCP);
bf_set(lpfc_reg_fcfi_type_mask0, reg_fcfi, 0xff);
bf_set(lpfc_reg_fcfi_rctl_match0, reg_fcfi,
FC_RCTL_DD_UNSOL_CMD);
bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi,
phba->sli4_hba.hdr_rq->queue_id);
/* Match everything else - rq_id1 */
bf_set(lpfc_reg_fcfi_type_match1, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_type_mask1, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_rctl_match1, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_rctl_mask1, reg_fcfi, 0);
}
bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
bf_set(lpfc_reg_fcfi_info_index, reg_fcfi,
phba->fcf.current_rec.fcf_indx);
if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi,
phba->fcf.current_rec.vlan_id);
}
}
/**
* lpfc_reg_fcfi_mrq - Initialize the REG_FCFI_MRQ mailbox command
* @phba: pointer to the hba structure containing the FCF index and RQ ID.
* @mbox: pointer to lpfc mbox command to initialize.
* @mode: 0 to register FCFI, 1 to register MRQs
*
* The REG_FCFI_MRQ mailbox command supports Fibre Channel Forwarders (FCFs).
* The SLI Host uses the command to activate an FCF after it has acquired FCF
* information via a READ_FCF mailbox command. This mailbox command also is used
* to indicate where received unsolicited frames from this FCF will be sent. By
* default this routine will set up the FCF to forward all unsolicited frames
* to the RQ ID passed in the @phba. This can be overridden by the caller for
* more complicated setups.
**/
void
lpfc_reg_fcfi_mrq(struct lpfc_hba *phba, struct lpfcMboxq *mbox, int mode)
{
struct lpfc_mbx_reg_fcfi_mrq *reg_fcfi;
/* This is ONLY for MRQ */
if (phba->cfg_nvmet_mrq <= 1)
return;
memset(mbox, 0, sizeof(*mbox));
reg_fcfi = &mbox->u.mqe.un.reg_fcfi_mrq;
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI_MRQ);
if (mode == 0) {
bf_set(lpfc_reg_fcfi_mrq_info_index, reg_fcfi,
phba->fcf.current_rec.fcf_indx);
if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
bf_set(lpfc_reg_fcfi_mrq_vv, reg_fcfi, 1);
bf_set(lpfc_reg_fcfi_mrq_vlan_tag, reg_fcfi,
phba->fcf.current_rec.vlan_id);
}
return;
}
bf_set(lpfc_reg_fcfi_mrq_rq_id0, reg_fcfi,
phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id);
/* Match NVME frames of type FCP (protocol NVME) - rq_id0 */
bf_set(lpfc_reg_fcfi_mrq_type_match0, reg_fcfi, FC_TYPE_FCP);
bf_set(lpfc_reg_fcfi_mrq_type_mask0, reg_fcfi, 0xff);
bf_set(lpfc_reg_fcfi_mrq_rctl_match0, reg_fcfi, FC_RCTL_DD_UNSOL_CMD);
bf_set(lpfc_reg_fcfi_mrq_rctl_mask0, reg_fcfi, 0xff);
bf_set(lpfc_reg_fcfi_mrq_ptc0, reg_fcfi, 1);
bf_set(lpfc_reg_fcfi_mrq_pt0, reg_fcfi, 1);
bf_set(lpfc_reg_fcfi_mrq_policy, reg_fcfi, 3); /* NVME connection id */
bf_set(lpfc_reg_fcfi_mrq_mode, reg_fcfi, 1);
bf_set(lpfc_reg_fcfi_mrq_filter, reg_fcfi, 1); /* rq_id0 */
bf_set(lpfc_reg_fcfi_mrq_npairs, reg_fcfi, phba->cfg_nvmet_mrq);
bf_set(lpfc_reg_fcfi_mrq_rq_id1, reg_fcfi,
phba->sli4_hba.hdr_rq->queue_id);
/* Match everything - rq_id1 */
bf_set(lpfc_reg_fcfi_mrq_type_match1, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_mrq_type_mask1, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_mrq_rctl_match1, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_mrq_rctl_mask1, reg_fcfi, 0);
bf_set(lpfc_reg_fcfi_mrq_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
bf_set(lpfc_reg_fcfi_mrq_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
}
/**
* lpfc_unreg_fcfi - Initialize the UNREG_FCFI mailbox command
* @mbox: pointer to lpfc mbox command to initialize.
* @fcfi: FCFI to be unregistered.
*
* The UNREG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs).
* The SLI Host uses the command to inactivate an FCFI.
**/
void
lpfc_unreg_fcfi(struct lpfcMboxq *mbox, uint16_t fcfi)
{
memset(mbox, 0, sizeof(*mbox));
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_FCFI);
bf_set(lpfc_unreg_fcfi, &mbox->u.mqe.un.unreg_fcfi, fcfi);
}
/**
* lpfc_resume_rpi - Initialize the RESUME_RPI mailbox command
* @mbox: pointer to lpfc mbox command to initialize.
* @ndlp: The nodelist structure that describes the RPI to resume.
*
* The RESUME_RPI mailbox command is used to restart I/O to an RPI after a
* link event.
**/
void
lpfc_resume_rpi(struct lpfcMboxq *mbox, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = ndlp->phba;
struct lpfc_mbx_resume_rpi *resume_rpi;
memset(mbox, 0, sizeof(*mbox));
resume_rpi = &mbox->u.mqe.un.resume_rpi;
bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_RESUME_RPI);
bf_set(lpfc_resume_rpi_index, resume_rpi,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(lpfc_resume_rpi_ii, resume_rpi, RESUME_INDEX_RPI);
resume_rpi->event_tag = ndlp->phba->fc_eventTag;
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_mbox.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/export.h>
#include <linux/delay.h>
#include <asm/unaligned.h>
#include <linux/t10-pi.h>
#include <linux/crc-t10dif.h>
#include <linux/blk-cgroup.h>
#include <net/checksum.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_fc.h>
#include "lpfc_version.h"
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#define LPFC_RESET_WAIT 2
#define LPFC_ABORT_WAIT 2
static char *dif_op_str[] = {
"PROT_NORMAL",
"PROT_READ_INSERT",
"PROT_WRITE_STRIP",
"PROT_READ_STRIP",
"PROT_WRITE_INSERT",
"PROT_READ_PASS",
"PROT_WRITE_PASS",
};
struct scsi_dif_tuple {
__be16 guard_tag; /* Checksum */
__be16 app_tag; /* Opaque storage */
__be32 ref_tag; /* Target LBA or indirect LBA */
};
static struct lpfc_rport_data *
lpfc_rport_data_from_scsi_device(struct scsi_device *sdev)
{
struct lpfc_vport *vport = (struct lpfc_vport *)sdev->host->hostdata;
if (vport->phba->cfg_fof)
return ((struct lpfc_device_data *)sdev->hostdata)->rport_data;
else
return (struct lpfc_rport_data *)sdev->hostdata;
}
static void
lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb);
static void
lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb);
static int
lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc);
/**
* lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge.
* @phba: Pointer to HBA object.
* @lpfc_cmd: lpfc scsi command object pointer.
*
* This function is called from the lpfc_prep_task_mgmt_cmd function to
* set the last bit in the response sge entry.
**/
static void
lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba,
struct lpfc_io_buf *lpfc_cmd)
{
struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
if (sgl) {
sgl += 1;
sgl->word2 = le32_to_cpu(sgl->word2);
bf_set(lpfc_sli4_sge_last, sgl, 1);
sgl->word2 = cpu_to_le32(sgl->word2);
}
}
/**
* lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread
* @phba: The Hba for which this call is being executed.
*
* This routine is called when there is resource error in driver or firmware.
* This routine posts WORKER_RAMP_DOWN_QUEUE event for @phba. This routine
* posts at most 1 event each second. This routine wakes up worker thread of
* @phba to process WORKER_RAM_DOWN_EVENT event.
*
* This routine should be called with no lock held.
**/
void
lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
{
unsigned long flags;
uint32_t evt_posted;
unsigned long expires;
spin_lock_irqsave(&phba->hbalock, flags);
atomic_inc(&phba->num_rsrc_err);
phba->last_rsrc_error_time = jiffies;
expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL;
if (time_after(expires, jiffies)) {
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
phba->last_ramp_down_time = jiffies;
spin_unlock_irqrestore(&phba->hbalock, flags);
spin_lock_irqsave(&phba->pport->work_port_lock, flags);
evt_posted = phba->pport->work_port_events & WORKER_RAMP_DOWN_QUEUE;
if (!evt_posted)
phba->pport->work_port_events |= WORKER_RAMP_DOWN_QUEUE;
spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
if (!evt_posted)
lpfc_worker_wake_up(phba);
return;
}
/**
* lpfc_ramp_down_queue_handler - WORKER_RAMP_DOWN_QUEUE event handler
* @phba: The Hba for which this call is being executed.
*
* This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker
* thread.This routine reduces queue depth for all scsi device on each vport
* associated with @phba.
**/
void
lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct Scsi_Host *shost;
struct scsi_device *sdev;
unsigned long new_queue_depth;
unsigned long num_rsrc_err, num_cmd_success;
int i;
num_rsrc_err = atomic_read(&phba->num_rsrc_err);
num_cmd_success = atomic_read(&phba->num_cmd_success);
/*
* The error and success command counters are global per
* driver instance. If another handler has already
* operated on this error event, just exit.
*/
if (num_rsrc_err == 0)
return;
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
shost_for_each_device(sdev, shost) {
new_queue_depth =
sdev->queue_depth * num_rsrc_err /
(num_rsrc_err + num_cmd_success);
if (!new_queue_depth)
new_queue_depth = sdev->queue_depth - 1;
else
new_queue_depth = sdev->queue_depth -
new_queue_depth;
scsi_change_queue_depth(sdev, new_queue_depth);
}
}
lpfc_destroy_vport_work_array(phba, vports);
atomic_set(&phba->num_rsrc_err, 0);
atomic_set(&phba->num_cmd_success, 0);
}
/**
* lpfc_scsi_dev_block - set all scsi hosts to block state
* @phba: Pointer to HBA context object.
*
* This function walks vport list and set each SCSI host to block state
* by invoking fc_remote_port_delete() routine. This function is invoked
* with EEH when device's PCI slot has been permanently disabled.
**/
void
lpfc_scsi_dev_block(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct Scsi_Host *shost;
struct scsi_device *sdev;
struct fc_rport *rport;
int i;
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
shost_for_each_device(sdev, shost) {
rport = starget_to_rport(scsi_target(sdev));
fc_remote_port_delete(rport);
}
}
lpfc_destroy_vport_work_array(phba, vports);
}
/**
* lpfc_new_scsi_buf_s3 - Scsi buffer allocator for HBA with SLI3 IF spec
* @vport: The virtual port for which this call being executed.
* @num_to_alloc: The requested number of buffers to allocate.
*
* This routine allocates a scsi buffer for device with SLI-3 interface spec,
* the scsi buffer contains all the necessary information needed to initiate
* a SCSI I/O. The non-DMAable buffer region contains information to build
* the IOCB. The DMAable region contains memory for the FCP CMND, FCP RSP,
* and the initial BPL. In addition to allocating memory, the FCP CMND and
* FCP RSP BDEs are setup in the BPL and the BPL BDE is setup in the IOCB.
*
* Return codes:
* int - number of scsi buffers that were allocated.
* 0 = failure, less than num_to_alloc is a partial failure.
**/
static int
lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_io_buf *psb;
struct ulp_bde64 *bpl;
IOCB_t *iocb;
dma_addr_t pdma_phys_fcp_cmd;
dma_addr_t pdma_phys_fcp_rsp;
dma_addr_t pdma_phys_sgl;
uint16_t iotag;
int bcnt, bpl_size;
bpl_size = phba->cfg_sg_dma_buf_size -
(sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp));
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"9067 ALLOC %d scsi_bufs: %d (%d + %d + %d)\n",
num_to_alloc, phba->cfg_sg_dma_buf_size,
(int)sizeof(struct fcp_cmnd),
(int)sizeof(struct fcp_rsp), bpl_size);
for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
psb = kzalloc(sizeof(struct lpfc_io_buf), GFP_KERNEL);
if (!psb)
break;
/*
* Get memory from the pci pool to map the virt space to pci
* bus space for an I/O. The DMA buffer includes space for the
* struct fcp_cmnd, struct fcp_rsp and the number of bde's
* necessary to support the sg_tablesize.
*/
psb->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
GFP_KERNEL, &psb->dma_handle);
if (!psb->data) {
kfree(psb);
break;
}
/* Allocate iotag for psb->cur_iocbq. */
iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq);
if (iotag == 0) {
dma_pool_free(phba->lpfc_sg_dma_buf_pool,
psb->data, psb->dma_handle);
kfree(psb);
break;
}
psb->cur_iocbq.cmd_flag |= LPFC_IO_FCP;
psb->fcp_cmnd = psb->data;
psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd);
psb->dma_sgl = psb->data + sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp);
/* Initialize local short-hand pointers. */
bpl = (struct ulp_bde64 *)psb->dma_sgl;
pdma_phys_fcp_cmd = psb->dma_handle;
pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd);
pdma_phys_sgl = psb->dma_handle + sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp);
/*
* The first two bdes are the FCP_CMD and FCP_RSP. The balance
* are sg list bdes. Initialize the first two and leave the
* rest for queuecommand.
*/
bpl[0].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_cmd));
bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd));
bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd);
bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64;
bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w);
/* Setup the physical region for the FCP RSP */
bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp));
bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp));
bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp);
bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64;
bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w);
/*
* Since the IOCB for the FCP I/O is built into this
* lpfc_scsi_buf, initialize it with all known data now.
*/
iocb = &psb->cur_iocbq.iocb;
iocb->un.fcpi64.bdl.ulpIoTag32 = 0;
if ((phba->sli_rev == 3) &&
!(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) {
/* fill in immediate fcp command BDE */
iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED;
iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd);
iocb->un.fcpi64.bdl.addrLow = offsetof(IOCB_t,
unsli3.fcp_ext.icd);
iocb->un.fcpi64.bdl.addrHigh = 0;
iocb->ulpBdeCount = 0;
iocb->ulpLe = 0;
/* fill in response BDE */
iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags =
BUFF_TYPE_BDE_64;
iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize =
sizeof(struct fcp_rsp);
iocb->unsli3.fcp_ext.rbde.addrLow =
putPaddrLow(pdma_phys_fcp_rsp);
iocb->unsli3.fcp_ext.rbde.addrHigh =
putPaddrHigh(pdma_phys_fcp_rsp);
} else {
iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
iocb->un.fcpi64.bdl.bdeSize =
(2 * sizeof(struct ulp_bde64));
iocb->un.fcpi64.bdl.addrLow =
putPaddrLow(pdma_phys_sgl);
iocb->un.fcpi64.bdl.addrHigh =
putPaddrHigh(pdma_phys_sgl);
iocb->ulpBdeCount = 1;
iocb->ulpLe = 1;
}
iocb->ulpClass = CLASS3;
psb->status = IOSTAT_SUCCESS;
/* Put it back into the SCSI buffer list */
psb->cur_iocbq.io_buf = psb;
spin_lock_init(&psb->buf_lock);
lpfc_release_scsi_buf_s3(phba, psb);
}
return bcnt;
}
/**
* lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport
* @vport: pointer to lpfc vport data structure.
*
* This routine is invoked by the vport cleanup for deletions and the cleanup
* for an ndlp on removal.
**/
void
lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_io_buf *psb, *next_psb;
struct lpfc_sli4_hdw_queue *qp;
unsigned long iflag = 0;
int idx;
if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
return;
spin_lock_irqsave(&phba->hbalock, iflag);
for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
qp = &phba->sli4_hba.hdwq[idx];
spin_lock(&qp->abts_io_buf_list_lock);
list_for_each_entry_safe(psb, next_psb,
&qp->lpfc_abts_io_buf_list, list) {
if (psb->cur_iocbq.cmd_flag & LPFC_IO_NVME)
continue;
if (psb->rdata && psb->rdata->pnode &&
psb->rdata->pnode->vport == vport)
psb->rdata = NULL;
}
spin_unlock(&qp->abts_io_buf_list_lock);
}
spin_unlock_irqrestore(&phba->hbalock, iflag);
}
/**
* lpfc_sli4_io_xri_aborted - Fast-path process of fcp xri abort
* @phba: pointer to lpfc hba data structure.
* @axri: pointer to the fcp xri abort wcqe structure.
* @idx: index into hdwq
*
* This routine is invoked by the worker thread to process a SLI4 fast-path
* FCP or NVME aborted xri.
**/
void
lpfc_sli4_io_xri_aborted(struct lpfc_hba *phba,
struct sli4_wcqe_xri_aborted *axri, int idx)
{
u16 xri = 0;
u16 rxid = 0;
struct lpfc_io_buf *psb, *next_psb;
struct lpfc_sli4_hdw_queue *qp;
unsigned long iflag = 0;
struct lpfc_iocbq *iocbq;
int i;
struct lpfc_nodelist *ndlp;
int rrq_empty = 0;
struct lpfc_sli_ring *pring = phba->sli4_hba.els_wq->pring;
struct scsi_cmnd *cmd;
int offline = 0;
if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
return;
offline = pci_channel_offline(phba->pcidev);
if (!offline) {
xri = bf_get(lpfc_wcqe_xa_xri, axri);
rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
}
qp = &phba->sli4_hba.hdwq[idx];
spin_lock_irqsave(&phba->hbalock, iflag);
spin_lock(&qp->abts_io_buf_list_lock);
list_for_each_entry_safe(psb, next_psb,
&qp->lpfc_abts_io_buf_list, list) {
if (offline)
xri = psb->cur_iocbq.sli4_xritag;
if (psb->cur_iocbq.sli4_xritag == xri) {
list_del_init(&psb->list);
psb->flags &= ~LPFC_SBUF_XBUSY;
psb->status = IOSTAT_SUCCESS;
if (psb->cur_iocbq.cmd_flag & LPFC_IO_NVME) {
qp->abts_nvme_io_bufs--;
spin_unlock(&qp->abts_io_buf_list_lock);
spin_unlock_irqrestore(&phba->hbalock, iflag);
if (!offline) {
lpfc_sli4_nvme_xri_aborted(phba, axri,
psb);
return;
}
lpfc_sli4_nvme_pci_offline_aborted(phba, psb);
spin_lock_irqsave(&phba->hbalock, iflag);
spin_lock(&qp->abts_io_buf_list_lock);
continue;
}
qp->abts_scsi_io_bufs--;
spin_unlock(&qp->abts_io_buf_list_lock);
if (psb->rdata && psb->rdata->pnode)
ndlp = psb->rdata->pnode;
else
ndlp = NULL;
rrq_empty = list_empty(&phba->active_rrq_list);
spin_unlock_irqrestore(&phba->hbalock, iflag);
if (ndlp && !offline) {
lpfc_set_rrq_active(phba, ndlp,
psb->cur_iocbq.sli4_lxritag, rxid, 1);
lpfc_sli4_abts_err_handler(phba, ndlp, axri);
}
if (phba->cfg_fcp_wait_abts_rsp || offline) {
spin_lock_irqsave(&psb->buf_lock, iflag);
cmd = psb->pCmd;
psb->pCmd = NULL;
spin_unlock_irqrestore(&psb->buf_lock, iflag);
/* The sdev is not guaranteed to be valid post
* scsi_done upcall.
*/
if (cmd)
scsi_done(cmd);
/*
* We expect there is an abort thread waiting
* for command completion wake up the thread.
*/
spin_lock_irqsave(&psb->buf_lock, iflag);
psb->cur_iocbq.cmd_flag &=
~LPFC_DRIVER_ABORTED;
if (psb->waitq)
wake_up(psb->waitq);
spin_unlock_irqrestore(&psb->buf_lock, iflag);
}
lpfc_release_scsi_buf_s4(phba, psb);
if (rrq_empty)
lpfc_worker_wake_up(phba);
if (!offline)
return;
spin_lock_irqsave(&phba->hbalock, iflag);
spin_lock(&qp->abts_io_buf_list_lock);
continue;
}
}
spin_unlock(&qp->abts_io_buf_list_lock);
if (!offline) {
for (i = 1; i <= phba->sli.last_iotag; i++) {
iocbq = phba->sli.iocbq_lookup[i];
if (!(iocbq->cmd_flag & LPFC_IO_FCP) ||
(iocbq->cmd_flag & LPFC_IO_LIBDFC))
continue;
if (iocbq->sli4_xritag != xri)
continue;
psb = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
psb->flags &= ~LPFC_SBUF_XBUSY;
spin_unlock_irqrestore(&phba->hbalock, iflag);
if (!list_empty(&pring->txq))
lpfc_worker_wake_up(phba);
return;
}
}
spin_unlock_irqrestore(&phba->hbalock, iflag);
}
/**
* lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA
* @phba: The HBA for which this call is being executed.
* @ndlp: pointer to a node-list data structure.
* @cmnd: Pointer to scsi_cmnd data structure.
*
* This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list
* and returns to caller.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_scsi_buf - Success
**/
static struct lpfc_io_buf *
lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
struct scsi_cmnd *cmnd)
{
struct lpfc_io_buf *lpfc_cmd = NULL;
struct list_head *scsi_buf_list_get = &phba->lpfc_scsi_buf_list_get;
unsigned long iflag = 0;
spin_lock_irqsave(&phba->scsi_buf_list_get_lock, iflag);
list_remove_head(scsi_buf_list_get, lpfc_cmd, struct lpfc_io_buf,
list);
if (!lpfc_cmd) {
spin_lock(&phba->scsi_buf_list_put_lock);
list_splice(&phba->lpfc_scsi_buf_list_put,
&phba->lpfc_scsi_buf_list_get);
INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
list_remove_head(scsi_buf_list_get, lpfc_cmd,
struct lpfc_io_buf, list);
spin_unlock(&phba->scsi_buf_list_put_lock);
}
spin_unlock_irqrestore(&phba->scsi_buf_list_get_lock, iflag);
if (lpfc_ndlp_check_qdepth(phba, ndlp) && lpfc_cmd) {
atomic_inc(&ndlp->cmd_pending);
lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH;
}
return lpfc_cmd;
}
/**
* lpfc_get_scsi_buf_s4 - Get a scsi buffer from io_buf_list of the HBA
* @phba: The HBA for which this call is being executed.
* @ndlp: pointer to a node-list data structure.
* @cmnd: Pointer to scsi_cmnd data structure.
*
* This routine removes a scsi buffer from head of @hdwq io_buf_list
* and returns to caller.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_scsi_buf - Success
**/
static struct lpfc_io_buf *
lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
struct scsi_cmnd *cmnd)
{
struct lpfc_io_buf *lpfc_cmd;
struct lpfc_sli4_hdw_queue *qp;
struct sli4_sge *sgl;
dma_addr_t pdma_phys_fcp_rsp;
dma_addr_t pdma_phys_fcp_cmd;
uint32_t cpu, idx;
int tag;
struct fcp_cmd_rsp_buf *tmp = NULL;
cpu = raw_smp_processor_id();
if (cmnd && phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ) {
tag = blk_mq_unique_tag(scsi_cmd_to_rq(cmnd));
idx = blk_mq_unique_tag_to_hwq(tag);
} else {
idx = phba->sli4_hba.cpu_map[cpu].hdwq;
}
lpfc_cmd = lpfc_get_io_buf(phba, ndlp, idx,
!phba->cfg_xri_rebalancing);
if (!lpfc_cmd) {
qp = &phba->sli4_hba.hdwq[idx];
qp->empty_io_bufs++;
return NULL;
}
/* Setup key fields in buffer that may have been changed
* if other protocols used this buffer.
*/
lpfc_cmd->cur_iocbq.cmd_flag = LPFC_IO_FCP;
lpfc_cmd->prot_seg_cnt = 0;
lpfc_cmd->seg_cnt = 0;
lpfc_cmd->timeout = 0;
lpfc_cmd->flags = 0;
lpfc_cmd->start_time = jiffies;
lpfc_cmd->waitq = NULL;
lpfc_cmd->cpu = cpu;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
lpfc_cmd->prot_data_type = 0;
#endif
tmp = lpfc_get_cmd_rsp_buf_per_hdwq(phba, lpfc_cmd);
if (!tmp) {
lpfc_release_io_buf(phba, lpfc_cmd, lpfc_cmd->hdwq);
return NULL;
}
lpfc_cmd->fcp_cmnd = tmp->fcp_cmnd;
lpfc_cmd->fcp_rsp = tmp->fcp_rsp;
/*
* The first two SGEs are the FCP_CMD and FCP_RSP.
* The balance are sg list bdes. Initialize the
* first two and leave the rest for queuecommand.
*/
sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
pdma_phys_fcp_cmd = tmp->fcp_cmd_rsp_dma_handle;
sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd));
sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd));
sgl->word2 = le32_to_cpu(sgl->word2);
bf_set(lpfc_sli4_sge_last, sgl, 0);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd));
sgl++;
/* Setup the physical region for the FCP RSP */
pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd);
sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp));
sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp));
sgl->word2 = le32_to_cpu(sgl->word2);
bf_set(lpfc_sli4_sge_last, sgl, 1);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp));
if (lpfc_ndlp_check_qdepth(phba, ndlp)) {
atomic_inc(&ndlp->cmd_pending);
lpfc_cmd->flags |= LPFC_SBUF_BUMP_QDEPTH;
}
return lpfc_cmd;
}
/**
* lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA
* @phba: The HBA for which this call is being executed.
* @ndlp: pointer to a node-list data structure.
* @cmnd: Pointer to scsi_cmnd data structure.
*
* This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list
* and returns to caller.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_scsi_buf - Success
**/
static struct lpfc_io_buf*
lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
struct scsi_cmnd *cmnd)
{
return phba->lpfc_get_scsi_buf(phba, ndlp, cmnd);
}
/**
* lpfc_release_scsi_buf_s3 - Return a scsi buffer back to hba scsi buf list
* @phba: The Hba for which this call is being executed.
* @psb: The scsi buffer which is being released.
*
* This routine releases @psb scsi buffer by adding it to tail of @phba
* lpfc_scsi_buf_list list.
**/
static void
lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *psb)
{
unsigned long iflag = 0;
psb->seg_cnt = 0;
psb->prot_seg_cnt = 0;
spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
psb->pCmd = NULL;
psb->cur_iocbq.cmd_flag = LPFC_IO_FCP;
list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list_put);
spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
}
/**
* lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf list.
* @phba: The Hba for which this call is being executed.
* @psb: The scsi buffer which is being released.
*
* This routine releases @psb scsi buffer by adding it to tail of @hdwq
* io_buf_list list. For SLI4 XRI's are tied to the scsi buffer
* and cannot be reused for at least RA_TOV amount of time if it was
* aborted.
**/
static void
lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *psb)
{
struct lpfc_sli4_hdw_queue *qp;
unsigned long iflag = 0;
psb->seg_cnt = 0;
psb->prot_seg_cnt = 0;
qp = psb->hdwq;
if (psb->flags & LPFC_SBUF_XBUSY) {
spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag);
if (!phba->cfg_fcp_wait_abts_rsp)
psb->pCmd = NULL;
list_add_tail(&psb->list, &qp->lpfc_abts_io_buf_list);
qp->abts_scsi_io_bufs++;
spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag);
} else {
lpfc_release_io_buf(phba, (struct lpfc_io_buf *)psb, qp);
}
}
/**
* lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf list.
* @phba: The Hba for which this call is being executed.
* @psb: The scsi buffer which is being released.
*
* This routine releases @psb scsi buffer by adding it to tail of @phba
* lpfc_scsi_buf_list list.
**/
static void
lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb)
{
if ((psb->flags & LPFC_SBUF_BUMP_QDEPTH) && psb->ndlp)
atomic_dec(&psb->ndlp->cmd_pending);
psb->flags &= ~LPFC_SBUF_BUMP_QDEPTH;
phba->lpfc_release_scsi_buf(phba, psb);
}
/**
* lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB
* @data: A pointer to the immediate command data portion of the IOCB.
* @fcp_cmnd: The FCP Command that is provided by the SCSI layer.
*
* The routine copies the entire FCP command from @fcp_cmnd to @data while
* byte swapping the data to big endian format for transmission on the wire.
**/
static void
lpfc_fcpcmd_to_iocb(u8 *data, struct fcp_cmnd *fcp_cmnd)
{
int i, j;
for (i = 0, j = 0; i < sizeof(struct fcp_cmnd);
i += sizeof(uint32_t), j++) {
((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]);
}
}
/**
* lpfc_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec
* @phba: The Hba for which this call is being executed.
* @lpfc_cmd: The scsi buffer which is going to be mapped.
*
* This routine does the pci dma mapping for scatter-gather list of scsi cmnd
* field of @lpfc_cmd for device with SLI-3 interface spec. This routine scans
* through sg elements and format the bde. This routine also initializes all
* IOCB fields which are dependent on scsi command request buffer.
*
* Return codes:
* 1 - Error
* 0 - Success
**/
static int
lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
{
struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
struct scatterlist *sgel = NULL;
struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
struct ulp_bde64 *bpl = (struct ulp_bde64 *)lpfc_cmd->dma_sgl;
struct lpfc_iocbq *iocbq = &lpfc_cmd->cur_iocbq;
IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde;
dma_addr_t physaddr;
uint32_t num_bde = 0;
int nseg, datadir = scsi_cmnd->sc_data_direction;
/*
* There are three possibilities here - use scatter-gather segment, use
* the single mapping, or neither. Start the lpfc command prep by
* bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first
* data bde entry.
*/
bpl += 2;
if (scsi_sg_count(scsi_cmnd)) {
/*
* The driver stores the segment count returned from dma_map_sg
* because this a count of dma-mappings used to map the use_sg
* pages. They are not guaranteed to be the same for those
* architectures that implement an IOMMU.
*/
nseg = dma_map_sg(&phba->pcidev->dev, scsi_sglist(scsi_cmnd),
scsi_sg_count(scsi_cmnd), datadir);
if (unlikely(!nseg))
return 1;
lpfc_cmd->seg_cnt = nseg;
if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9064 BLKGRD: %s: Too many sg segments"
" from dma_map_sg. Config %d, seg_cnt"
" %d\n", __func__, phba->cfg_sg_seg_cnt,
lpfc_cmd->seg_cnt);
WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt);
lpfc_cmd->seg_cnt = 0;
scsi_dma_unmap(scsi_cmnd);
return 2;
}
/*
* The driver established a maximum scatter-gather segment count
* during probe that limits the number of sg elements in any
* single scsi command. Just run through the seg_cnt and format
* the bde's.
* When using SLI-3 the driver will try to fit all the BDEs into
* the IOCB. If it can't then the BDEs get added to a BPL as it
* does for SLI-2 mode.
*/
scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) {
physaddr = sg_dma_address(sgel);
if (phba->sli_rev == 3 &&
!(phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
!(iocbq->cmd_flag & DSS_SECURITY_OP) &&
nseg <= LPFC_EXT_DATA_BDE_COUNT) {
data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
data_bde->tus.f.bdeSize = sg_dma_len(sgel);
data_bde->addrLow = putPaddrLow(physaddr);
data_bde->addrHigh = putPaddrHigh(physaddr);
data_bde++;
} else {
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
bpl->tus.f.bdeSize = sg_dma_len(sgel);
bpl->tus.w = le32_to_cpu(bpl->tus.w);
bpl->addrLow =
le32_to_cpu(putPaddrLow(physaddr));
bpl->addrHigh =
le32_to_cpu(putPaddrHigh(physaddr));
bpl++;
}
}
}
/*
* Finish initializing those IOCB fields that are dependent on the
* scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is
* explicitly reinitialized and for SLI-3 the extended bde count is
* explicitly reinitialized since all iocb memory resources are reused.
*/
if (phba->sli_rev == 3 &&
!(phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
!(iocbq->cmd_flag & DSS_SECURITY_OP)) {
if (num_bde > LPFC_EXT_DATA_BDE_COUNT) {
/*
* The extended IOCB format can only fit 3 BDE or a BPL.
* This I/O has more than 3 BDE so the 1st data bde will
* be a BPL that is filled in here.
*/
physaddr = lpfc_cmd->dma_handle;
data_bde->tus.f.bdeFlags = BUFF_TYPE_BLP_64;
data_bde->tus.f.bdeSize = (num_bde *
sizeof(struct ulp_bde64));
physaddr += (sizeof(struct fcp_cmnd) +
sizeof(struct fcp_rsp) +
(2 * sizeof(struct ulp_bde64)));
data_bde->addrHigh = putPaddrHigh(physaddr);
data_bde->addrLow = putPaddrLow(physaddr);
/* ebde count includes the response bde and data bpl */
iocb_cmd->unsli3.fcp_ext.ebde_count = 2;
} else {
/* ebde count includes the response bde and data bdes */
iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1);
}
} else {
iocb_cmd->un.fcpi64.bdl.bdeSize =
((num_bde + 2) * sizeof(struct ulp_bde64));
iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1);
}
fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd));
/*
* Due to difference in data length between DIF/non-DIF paths,
* we need to set word 4 of IOCB here
*/
iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd);
lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd);
return 0;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/* Return BG_ERR_INIT if error injection is detected by Initiator */
#define BG_ERR_INIT 0x1
/* Return BG_ERR_TGT if error injection is detected by Target */
#define BG_ERR_TGT 0x2
/* Return BG_ERR_SWAP if swapping CSUM<-->CRC is required for error injection */
#define BG_ERR_SWAP 0x10
/*
* Return BG_ERR_CHECK if disabling Guard/Ref/App checking is required for
* error injection
*/
#define BG_ERR_CHECK 0x20
/**
* lpfc_bg_err_inject - Determine if we should inject an error
* @phba: The Hba for which this call is being executed.
* @sc: The SCSI command to examine
* @reftag: (out) BlockGuard reference tag for transmitted data
* @apptag: (out) BlockGuard application tag for transmitted data
* @new_guard: (in) Value to replace CRC with if needed
*
* Returns BG_ERR_* bit mask or 0 if request ignored
**/
static int
lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc,
uint32_t *reftag, uint16_t *apptag, uint32_t new_guard)
{
struct scatterlist *sgpe; /* s/g prot entry */
struct lpfc_io_buf *lpfc_cmd = NULL;
struct scsi_dif_tuple *src = NULL;
struct lpfc_nodelist *ndlp;
struct lpfc_rport_data *rdata;
uint32_t op = scsi_get_prot_op(sc);
uint32_t blksize;
uint32_t numblks;
u32 lba;
int rc = 0;
int blockoff = 0;
if (op == SCSI_PROT_NORMAL)
return 0;
sgpe = scsi_prot_sglist(sc);
lba = scsi_prot_ref_tag(sc);
/* First check if we need to match the LBA */
if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) {
blksize = scsi_prot_interval(sc);
numblks = (scsi_bufflen(sc) + blksize - 1) / blksize;
/* Make sure we have the right LBA if one is specified */
if (phba->lpfc_injerr_lba < (u64)lba ||
(phba->lpfc_injerr_lba >= (u64)(lba + numblks)))
return 0;
if (sgpe) {
blockoff = phba->lpfc_injerr_lba - (u64)lba;
numblks = sg_dma_len(sgpe) /
sizeof(struct scsi_dif_tuple);
if (numblks < blockoff)
blockoff = numblks;
}
}
/* Next check if we need to match the remote NPortID or WWPN */
rdata = lpfc_rport_data_from_scsi_device(sc->device);
if (rdata && rdata->pnode) {
ndlp = rdata->pnode;
/* Make sure we have the right NPortID if one is specified */
if (phba->lpfc_injerr_nportid &&
(phba->lpfc_injerr_nportid != ndlp->nlp_DID))
return 0;
/*
* Make sure we have the right WWPN if one is specified.
* wwn[0] should be a non-zero NAA in a good WWPN.
*/
if (phba->lpfc_injerr_wwpn.u.wwn[0] &&
(memcmp(&ndlp->nlp_portname, &phba->lpfc_injerr_wwpn,
sizeof(struct lpfc_name)) != 0))
return 0;
}
/* Setup a ptr to the protection data if the SCSI host provides it */
if (sgpe) {
src = (struct scsi_dif_tuple *)sg_virt(sgpe);
src += blockoff;
lpfc_cmd = (struct lpfc_io_buf *)sc->host_scribble;
}
/* Should we change the Reference Tag */
if (reftag) {
if (phba->lpfc_injerr_wref_cnt) {
switch (op) {
case SCSI_PROT_WRITE_PASS:
if (src) {
/*
* For WRITE_PASS, force the error
* to be sent on the wire. It should
* be detected by the Target.
* If blockoff != 0 error will be
* inserted in middle of the IO.
*/
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"9076 BLKGRD: Injecting reftag error: "
"write lba x%lx + x%x oldrefTag x%x\n",
(unsigned long)lba, blockoff,
be32_to_cpu(src->ref_tag));
/*
* Save the old ref_tag so we can
* restore it on completion.
*/
if (lpfc_cmd) {
lpfc_cmd->prot_data_type =
LPFC_INJERR_REFTAG;
lpfc_cmd->prot_data_segment =
src;
lpfc_cmd->prot_data =
src->ref_tag;
}
src->ref_tag = cpu_to_be32(0xDEADBEEF);
phba->lpfc_injerr_wref_cnt--;
if (phba->lpfc_injerr_wref_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_TGT | BG_ERR_CHECK;
break;
}
fallthrough;
case SCSI_PROT_WRITE_INSERT:
/*
* For WRITE_INSERT, force the error
* to be sent on the wire. It should be
* detected by the Target.
*/
/* DEADBEEF will be the reftag on the wire */
*reftag = 0xDEADBEEF;
phba->lpfc_injerr_wref_cnt--;
if (phba->lpfc_injerr_wref_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_TGT | BG_ERR_CHECK;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9078 BLKGRD: Injecting reftag error: "
"write lba x%lx\n", (unsigned long)lba);
break;
case SCSI_PROT_WRITE_STRIP:
/*
* For WRITE_STRIP and WRITE_PASS,
* force the error on data
* being copied from SLI-Host to SLI-Port.
*/
*reftag = 0xDEADBEEF;
phba->lpfc_injerr_wref_cnt--;
if (phba->lpfc_injerr_wref_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_INIT;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9077 BLKGRD: Injecting reftag error: "
"write lba x%lx\n", (unsigned long)lba);
break;
}
}
if (phba->lpfc_injerr_rref_cnt) {
switch (op) {
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_READ_PASS:
/*
* For READ_STRIP and READ_PASS, force the
* error on data being read off the wire. It
* should force an IO error to the driver.
*/
*reftag = 0xDEADBEEF;
phba->lpfc_injerr_rref_cnt--;
if (phba->lpfc_injerr_rref_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_INIT;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9079 BLKGRD: Injecting reftag error: "
"read lba x%lx\n", (unsigned long)lba);
break;
}
}
}
/* Should we change the Application Tag */
if (apptag) {
if (phba->lpfc_injerr_wapp_cnt) {
switch (op) {
case SCSI_PROT_WRITE_PASS:
if (src) {
/*
* For WRITE_PASS, force the error
* to be sent on the wire. It should
* be detected by the Target.
* If blockoff != 0 error will be
* inserted in middle of the IO.
*/
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"9080 BLKGRD: Injecting apptag error: "
"write lba x%lx + x%x oldappTag x%x\n",
(unsigned long)lba, blockoff,
be16_to_cpu(src->app_tag));
/*
* Save the old app_tag so we can
* restore it on completion.
*/
if (lpfc_cmd) {
lpfc_cmd->prot_data_type =
LPFC_INJERR_APPTAG;
lpfc_cmd->prot_data_segment =
src;
lpfc_cmd->prot_data =
src->app_tag;
}
src->app_tag = cpu_to_be16(0xDEAD);
phba->lpfc_injerr_wapp_cnt--;
if (phba->lpfc_injerr_wapp_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_TGT | BG_ERR_CHECK;
break;
}
fallthrough;
case SCSI_PROT_WRITE_INSERT:
/*
* For WRITE_INSERT, force the
* error to be sent on the wire. It should be
* detected by the Target.
*/
/* DEAD will be the apptag on the wire */
*apptag = 0xDEAD;
phba->lpfc_injerr_wapp_cnt--;
if (phba->lpfc_injerr_wapp_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_TGT | BG_ERR_CHECK;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0813 BLKGRD: Injecting apptag error: "
"write lba x%lx\n", (unsigned long)lba);
break;
case SCSI_PROT_WRITE_STRIP:
/*
* For WRITE_STRIP and WRITE_PASS,
* force the error on data
* being copied from SLI-Host to SLI-Port.
*/
*apptag = 0xDEAD;
phba->lpfc_injerr_wapp_cnt--;
if (phba->lpfc_injerr_wapp_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_INIT;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0812 BLKGRD: Injecting apptag error: "
"write lba x%lx\n", (unsigned long)lba);
break;
}
}
if (phba->lpfc_injerr_rapp_cnt) {
switch (op) {
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_READ_PASS:
/*
* For READ_STRIP and READ_PASS, force the
* error on data being read off the wire. It
* should force an IO error to the driver.
*/
*apptag = 0xDEAD;
phba->lpfc_injerr_rapp_cnt--;
if (phba->lpfc_injerr_rapp_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_INIT;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0814 BLKGRD: Injecting apptag error: "
"read lba x%lx\n", (unsigned long)lba);
break;
}
}
}
/* Should we change the Guard Tag */
if (new_guard) {
if (phba->lpfc_injerr_wgrd_cnt) {
switch (op) {
case SCSI_PROT_WRITE_PASS:
rc = BG_ERR_CHECK;
fallthrough;
case SCSI_PROT_WRITE_INSERT:
/*
* For WRITE_INSERT, force the
* error to be sent on the wire. It should be
* detected by the Target.
*/
phba->lpfc_injerr_wgrd_cnt--;
if (phba->lpfc_injerr_wgrd_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc |= BG_ERR_TGT | BG_ERR_SWAP;
/* Signals the caller to swap CRC->CSUM */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0817 BLKGRD: Injecting guard error: "
"write lba x%lx\n", (unsigned long)lba);
break;
case SCSI_PROT_WRITE_STRIP:
/*
* For WRITE_STRIP and WRITE_PASS,
* force the error on data
* being copied from SLI-Host to SLI-Port.
*/
phba->lpfc_injerr_wgrd_cnt--;
if (phba->lpfc_injerr_wgrd_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_INIT | BG_ERR_SWAP;
/* Signals the caller to swap CRC->CSUM */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0816 BLKGRD: Injecting guard error: "
"write lba x%lx\n", (unsigned long)lba);
break;
}
}
if (phba->lpfc_injerr_rgrd_cnt) {
switch (op) {
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_READ_PASS:
/*
* For READ_STRIP and READ_PASS, force the
* error on data being read off the wire. It
* should force an IO error to the driver.
*/
phba->lpfc_injerr_rgrd_cnt--;
if (phba->lpfc_injerr_rgrd_cnt == 0) {
phba->lpfc_injerr_nportid = 0;
phba->lpfc_injerr_lba =
LPFC_INJERR_LBA_OFF;
memset(&phba->lpfc_injerr_wwpn,
0, sizeof(struct lpfc_name));
}
rc = BG_ERR_INIT | BG_ERR_SWAP;
/* Signals the caller to swap CRC->CSUM */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0818 BLKGRD: Injecting guard error: "
"read lba x%lx\n", (unsigned long)lba);
}
}
}
return rc;
}
#endif
/**
* lpfc_sc_to_bg_opcodes - Determine the BlockGuard opcodes to be used with
* the specified SCSI command.
* @phba: The Hba for which this call is being executed.
* @sc: The SCSI command to examine
* @txop: (out) BlockGuard operation for transmitted data
* @rxop: (out) BlockGuard operation for received data
*
* Returns: zero on success; non-zero if tx and/or rx op cannot be determined
*
**/
static int
lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc,
uint8_t *txop, uint8_t *rxop)
{
uint8_t ret = 0;
if (sc->prot_flags & SCSI_PROT_IP_CHECKSUM) {
switch (scsi_get_prot_op(sc)) {
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
*rxop = BG_OP_IN_NODIF_OUT_CSUM;
*txop = BG_OP_IN_CSUM_OUT_NODIF;
break;
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
*rxop = BG_OP_IN_CRC_OUT_NODIF;
*txop = BG_OP_IN_NODIF_OUT_CRC;
break;
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
*rxop = BG_OP_IN_CRC_OUT_CSUM;
*txop = BG_OP_IN_CSUM_OUT_CRC;
break;
case SCSI_PROT_NORMAL:
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9063 BLKGRD: Bad op/guard:%d/IP combination\n",
scsi_get_prot_op(sc));
ret = 1;
break;
}
} else {
switch (scsi_get_prot_op(sc)) {
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
*rxop = BG_OP_IN_CRC_OUT_NODIF;
*txop = BG_OP_IN_NODIF_OUT_CRC;
break;
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
*rxop = BG_OP_IN_CRC_OUT_CRC;
*txop = BG_OP_IN_CRC_OUT_CRC;
break;
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
*rxop = BG_OP_IN_NODIF_OUT_CRC;
*txop = BG_OP_IN_CRC_OUT_NODIF;
break;
case SCSI_PROT_NORMAL:
default:
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9075 BLKGRD: Bad op/guard:%d/CRC combination\n",
scsi_get_prot_op(sc));
ret = 1;
break;
}
}
return ret;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/**
* lpfc_bg_err_opcodes - reDetermine the BlockGuard opcodes to be used with
* the specified SCSI command in order to force a guard tag error.
* @phba: The Hba for which this call is being executed.
* @sc: The SCSI command to examine
* @txop: (out) BlockGuard operation for transmitted data
* @rxop: (out) BlockGuard operation for received data
*
* Returns: zero on success; non-zero if tx and/or rx op cannot be determined
*
**/
static int
lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc,
uint8_t *txop, uint8_t *rxop)
{
if (sc->prot_flags & SCSI_PROT_IP_CHECKSUM) {
switch (scsi_get_prot_op(sc)) {
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
*rxop = BG_OP_IN_NODIF_OUT_CRC;
*txop = BG_OP_IN_CRC_OUT_NODIF;
break;
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
*rxop = BG_OP_IN_CSUM_OUT_NODIF;
*txop = BG_OP_IN_NODIF_OUT_CSUM;
break;
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
*rxop = BG_OP_IN_CSUM_OUT_CRC;
*txop = BG_OP_IN_CRC_OUT_CSUM;
break;
case SCSI_PROT_NORMAL:
default:
break;
}
} else {
switch (scsi_get_prot_op(sc)) {
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
*rxop = BG_OP_IN_CSUM_OUT_NODIF;
*txop = BG_OP_IN_NODIF_OUT_CSUM;
break;
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
*rxop = BG_OP_IN_CSUM_OUT_CSUM;
*txop = BG_OP_IN_CSUM_OUT_CSUM;
break;
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
*rxop = BG_OP_IN_NODIF_OUT_CSUM;
*txop = BG_OP_IN_CSUM_OUT_NODIF;
break;
case SCSI_PROT_NORMAL:
default:
break;
}
}
return 0;
}
#endif
/**
* lpfc_bg_setup_bpl - Setup BlockGuard BPL with no protection data
* @phba: The Hba for which this call is being executed.
* @sc: pointer to scsi command we're working on
* @bpl: pointer to buffer list for protection groups
* @datasegcnt: number of segments of data that have been dma mapped
*
* This function sets up BPL buffer list for protection groups of
* type LPFC_PG_TYPE_NO_DIF
*
* This is usually used when the HBA is instructed to generate
* DIFs and insert them into data stream (or strip DIF from
* incoming data stream)
*
* The buffer list consists of just one protection group described
* below:
* +-------------------------+
* start of prot group --> | PDE_5 |
* +-------------------------+
* | PDE_6 |
* +-------------------------+
* | Data BDE |
* +-------------------------+
* |more Data BDE's ... (opt)|
* +-------------------------+
*
*
* Note: Data s/g buffers have been dma mapped
*
* Returns the number of BDEs added to the BPL.
**/
static int
lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
struct ulp_bde64 *bpl, int datasegcnt)
{
struct scatterlist *sgde = NULL; /* s/g data entry */
struct lpfc_pde5 *pde5 = NULL;
struct lpfc_pde6 *pde6 = NULL;
dma_addr_t physaddr;
int i = 0, num_bde = 0, status;
int datadir = sc->sc_data_direction;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
uint32_t rc;
#endif
uint32_t checking = 1;
uint32_t reftag;
uint8_t txop, rxop;
status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop);
if (status)
goto out;
/* extract some info from the scsi command for pde*/
reftag = scsi_prot_ref_tag(sc);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1);
if (rc) {
if (rc & BG_ERR_SWAP)
lpfc_bg_err_opcodes(phba, sc, &txop, &rxop);
if (rc & BG_ERR_CHECK)
checking = 0;
}
#endif
/* setup PDE5 with what we have */
pde5 = (struct lpfc_pde5 *) bpl;
memset(pde5, 0, sizeof(struct lpfc_pde5));
bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR);
/* Endianness conversion if necessary for PDE5 */
pde5->word0 = cpu_to_le32(pde5->word0);
pde5->reftag = cpu_to_le32(reftag);
/* advance bpl and increment bde count */
num_bde++;
bpl++;
pde6 = (struct lpfc_pde6 *) bpl;
/* setup PDE6 with the rest of the info */
memset(pde6, 0, sizeof(struct lpfc_pde6));
bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR);
bf_set(pde6_optx, pde6, txop);
bf_set(pde6_oprx, pde6, rxop);
/*
* We only need to check the data on READs, for WRITEs
* protection data is automatically generated, not checked.
*/
if (datadir == DMA_FROM_DEVICE) {
if (sc->prot_flags & SCSI_PROT_GUARD_CHECK)
bf_set(pde6_ce, pde6, checking);
else
bf_set(pde6_ce, pde6, 0);
if (sc->prot_flags & SCSI_PROT_REF_CHECK)
bf_set(pde6_re, pde6, checking);
else
bf_set(pde6_re, pde6, 0);
}
bf_set(pde6_ai, pde6, 1);
bf_set(pde6_ae, pde6, 0);
bf_set(pde6_apptagval, pde6, 0);
/* Endianness conversion if necessary for PDE6 */
pde6->word0 = cpu_to_le32(pde6->word0);
pde6->word1 = cpu_to_le32(pde6->word1);
pde6->word2 = cpu_to_le32(pde6->word2);
/* advance bpl and increment bde count */
num_bde++;
bpl++;
/* assumption: caller has already run dma_map_sg on command data */
scsi_for_each_sg(sc, sgde, datasegcnt, i) {
physaddr = sg_dma_address(sgde);
bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
bpl->tus.f.bdeSize = sg_dma_len(sgde);
if (datadir == DMA_TO_DEVICE)
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
else
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
bpl++;
num_bde++;
}
out:
return num_bde;
}
/**
* lpfc_bg_setup_bpl_prot - Setup BlockGuard BPL with protection data
* @phba: The Hba for which this call is being executed.
* @sc: pointer to scsi command we're working on
* @bpl: pointer to buffer list for protection groups
* @datacnt: number of segments of data that have been dma mapped
* @protcnt: number of segment of protection data that have been dma mapped
*
* This function sets up BPL buffer list for protection groups of
* type LPFC_PG_TYPE_DIF
*
* This is usually used when DIFs are in their own buffers,
* separate from the data. The HBA can then by instructed
* to place the DIFs in the outgoing stream. For read operations,
* The HBA could extract the DIFs and place it in DIF buffers.
*
* The buffer list for this type consists of one or more of the
* protection groups described below:
* +-------------------------+
* start of first prot group --> | PDE_5 |
* +-------------------------+
* | PDE_6 |
* +-------------------------+
* | PDE_7 (Prot BDE) |
* +-------------------------+
* | Data BDE |
* +-------------------------+
* |more Data BDE's ... (opt)|
* +-------------------------+
* start of new prot group --> | PDE_5 |
* +-------------------------+
* | ... |
* +-------------------------+
*
* Note: It is assumed that both data and protection s/g buffers have been
* mapped for DMA
*
* Returns the number of BDEs added to the BPL.
**/
static int
lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
struct ulp_bde64 *bpl, int datacnt, int protcnt)
{
struct scatterlist *sgde = NULL; /* s/g data entry */
struct scatterlist *sgpe = NULL; /* s/g prot entry */
struct lpfc_pde5 *pde5 = NULL;
struct lpfc_pde6 *pde6 = NULL;
struct lpfc_pde7 *pde7 = NULL;
dma_addr_t dataphysaddr, protphysaddr;
unsigned short curr_prot = 0;
unsigned int split_offset;
unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder;
unsigned int protgrp_blks, protgrp_bytes;
unsigned int remainder, subtotal;
int status;
int datadir = sc->sc_data_direction;
unsigned char pgdone = 0, alldone = 0;
unsigned blksize;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
uint32_t rc;
#endif
uint32_t checking = 1;
uint32_t reftag;
uint8_t txop, rxop;
int num_bde = 0;
sgpe = scsi_prot_sglist(sc);
sgde = scsi_sglist(sc);
if (!sgpe || !sgde) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9020 Invalid s/g entry: data=x%px prot=x%px\n",
sgpe, sgde);
return 0;
}
status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop);
if (status)
goto out;
/* extract some info from the scsi command */
blksize = scsi_prot_interval(sc);
reftag = scsi_prot_ref_tag(sc);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1);
if (rc) {
if (rc & BG_ERR_SWAP)
lpfc_bg_err_opcodes(phba, sc, &txop, &rxop);
if (rc & BG_ERR_CHECK)
checking = 0;
}
#endif
split_offset = 0;
do {
/* Check to see if we ran out of space */
if (num_bde >= (phba->cfg_total_seg_cnt - 2))
return num_bde + 3;
/* setup PDE5 with what we have */
pde5 = (struct lpfc_pde5 *) bpl;
memset(pde5, 0, sizeof(struct lpfc_pde5));
bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR);
/* Endianness conversion if necessary for PDE5 */
pde5->word0 = cpu_to_le32(pde5->word0);
pde5->reftag = cpu_to_le32(reftag);
/* advance bpl and increment bde count */
num_bde++;
bpl++;
pde6 = (struct lpfc_pde6 *) bpl;
/* setup PDE6 with the rest of the info */
memset(pde6, 0, sizeof(struct lpfc_pde6));
bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR);
bf_set(pde6_optx, pde6, txop);
bf_set(pde6_oprx, pde6, rxop);
if (sc->prot_flags & SCSI_PROT_GUARD_CHECK)
bf_set(pde6_ce, pde6, checking);
else
bf_set(pde6_ce, pde6, 0);
if (sc->prot_flags & SCSI_PROT_REF_CHECK)
bf_set(pde6_re, pde6, checking);
else
bf_set(pde6_re, pde6, 0);
bf_set(pde6_ai, pde6, 1);
bf_set(pde6_ae, pde6, 0);
bf_set(pde6_apptagval, pde6, 0);
/* Endianness conversion if necessary for PDE6 */
pde6->word0 = cpu_to_le32(pde6->word0);
pde6->word1 = cpu_to_le32(pde6->word1);
pde6->word2 = cpu_to_le32(pde6->word2);
/* advance bpl and increment bde count */
num_bde++;
bpl++;
/* setup the first BDE that points to protection buffer */
protphysaddr = sg_dma_address(sgpe) + protgroup_offset;
protgroup_len = sg_dma_len(sgpe) - protgroup_offset;
/* must be integer multiple of the DIF block length */
BUG_ON(protgroup_len % 8);
pde7 = (struct lpfc_pde7 *) bpl;
memset(pde7, 0, sizeof(struct lpfc_pde7));
bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR);
pde7->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr));
pde7->addrLow = le32_to_cpu(putPaddrLow(protphysaddr));
protgrp_blks = protgroup_len / 8;
protgrp_bytes = protgrp_blks * blksize;
/* check if this pde is crossing the 4K boundary; if so split */
if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) {
protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff);
protgroup_offset += protgroup_remainder;
protgrp_blks = protgroup_remainder / 8;
protgrp_bytes = protgrp_blks * blksize;
} else {
protgroup_offset = 0;
curr_prot++;
}
num_bde++;
/* setup BDE's for data blocks associated with DIF data */
pgdone = 0;
subtotal = 0; /* total bytes processed for current prot grp */
while (!pgdone) {
/* Check to see if we ran out of space */
if (num_bde >= phba->cfg_total_seg_cnt)
return num_bde + 1;
if (!sgde) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9065 BLKGRD:%s Invalid data segment\n",
__func__);
return 0;
}
bpl++;
dataphysaddr = sg_dma_address(sgde) + split_offset;
bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr));
remainder = sg_dma_len(sgde) - split_offset;
if ((subtotal + remainder) <= protgrp_bytes) {
/* we can use this whole buffer */
bpl->tus.f.bdeSize = remainder;
split_offset = 0;
if ((subtotal + remainder) == protgrp_bytes)
pgdone = 1;
} else {
/* must split this buffer with next prot grp */
bpl->tus.f.bdeSize = protgrp_bytes - subtotal;
split_offset += bpl->tus.f.bdeSize;
}
subtotal += bpl->tus.f.bdeSize;
if (datadir == DMA_TO_DEVICE)
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
else
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
num_bde++;
if (split_offset)
break;
/* Move to the next s/g segment if possible */
sgde = sg_next(sgde);
}
if (protgroup_offset) {
/* update the reference tag */
reftag += protgrp_blks;
bpl++;
continue;
}
/* are we done ? */
if (curr_prot == protcnt) {
alldone = 1;
} else if (curr_prot < protcnt) {
/* advance to next prot buffer */
sgpe = sg_next(sgpe);
bpl++;
/* update the reference tag */
reftag += protgrp_blks;
} else {
/* if we're here, we have a bug */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9054 BLKGRD: bug in %s\n", __func__);
}
} while (!alldone);
out:
return num_bde;
}
/**
* lpfc_bg_setup_sgl - Setup BlockGuard SGL with no protection data
* @phba: The Hba for which this call is being executed.
* @sc: pointer to scsi command we're working on
* @sgl: pointer to buffer list for protection groups
* @datasegcnt: number of segments of data that have been dma mapped
* @lpfc_cmd: lpfc scsi command object pointer.
*
* This function sets up SGL buffer list for protection groups of
* type LPFC_PG_TYPE_NO_DIF
*
* This is usually used when the HBA is instructed to generate
* DIFs and insert them into data stream (or strip DIF from
* incoming data stream)
*
* The buffer list consists of just one protection group described
* below:
* +-------------------------+
* start of prot group --> | DI_SEED |
* +-------------------------+
* | Data SGE |
* +-------------------------+
* |more Data SGE's ... (opt)|
* +-------------------------+
*
*
* Note: Data s/g buffers have been dma mapped
*
* Returns the number of SGEs added to the SGL.
**/
static int
lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
struct sli4_sge *sgl, int datasegcnt,
struct lpfc_io_buf *lpfc_cmd)
{
struct scatterlist *sgde = NULL; /* s/g data entry */
struct sli4_sge_diseed *diseed = NULL;
dma_addr_t physaddr;
int i = 0, num_sge = 0, status;
uint32_t reftag;
uint8_t txop, rxop;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
uint32_t rc;
#endif
uint32_t checking = 1;
uint32_t dma_len;
uint32_t dma_offset = 0;
struct sli4_hybrid_sgl *sgl_xtra = NULL;
int j;
bool lsp_just_set = false;
status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop);
if (status)
goto out;
/* extract some info from the scsi command for pde*/
reftag = scsi_prot_ref_tag(sc);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1);
if (rc) {
if (rc & BG_ERR_SWAP)
lpfc_bg_err_opcodes(phba, sc, &txop, &rxop);
if (rc & BG_ERR_CHECK)
checking = 0;
}
#endif
/* setup DISEED with what we have */
diseed = (struct sli4_sge_diseed *) sgl;
memset(diseed, 0, sizeof(struct sli4_sge_diseed));
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED);
/* Endianness conversion if necessary */
diseed->ref_tag = cpu_to_le32(reftag);
diseed->ref_tag_tran = diseed->ref_tag;
/*
* We only need to check the data on READs, for WRITEs
* protection data is automatically generated, not checked.
*/
if (sc->sc_data_direction == DMA_FROM_DEVICE) {
if (sc->prot_flags & SCSI_PROT_GUARD_CHECK)
bf_set(lpfc_sli4_sge_dif_ce, diseed, checking);
else
bf_set(lpfc_sli4_sge_dif_ce, diseed, 0);
if (sc->prot_flags & SCSI_PROT_REF_CHECK)
bf_set(lpfc_sli4_sge_dif_re, diseed, checking);
else
bf_set(lpfc_sli4_sge_dif_re, diseed, 0);
}
/* setup DISEED with the rest of the info */
bf_set(lpfc_sli4_sge_dif_optx, diseed, txop);
bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop);
bf_set(lpfc_sli4_sge_dif_ai, diseed, 1);
bf_set(lpfc_sli4_sge_dif_me, diseed, 0);
/* Endianness conversion if necessary for DISEED */
diseed->word2 = cpu_to_le32(diseed->word2);
diseed->word3 = cpu_to_le32(diseed->word3);
/* advance bpl and increment sge count */
num_sge++;
sgl++;
/* assumption: caller has already run dma_map_sg on command data */
sgde = scsi_sglist(sc);
j = 3;
for (i = 0; i < datasegcnt; i++) {
/* clear it */
sgl->word2 = 0;
/* do we need to expand the segment */
if (!lsp_just_set && !((j + 1) % phba->border_sge_num) &&
((datasegcnt - 1) != i)) {
/* set LSP type */
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_LSP);
sgl_xtra = lpfc_get_sgl_per_hdwq(phba, lpfc_cmd);
if (unlikely(!sgl_xtra)) {
lpfc_cmd->seg_cnt = 0;
return 0;
}
sgl->addr_lo = cpu_to_le32(putPaddrLow(
sgl_xtra->dma_phys_sgl));
sgl->addr_hi = cpu_to_le32(putPaddrHigh(
sgl_xtra->dma_phys_sgl));
} else {
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA);
}
if (!(bf_get(lpfc_sli4_sge_type, sgl) & LPFC_SGE_TYPE_LSP)) {
if ((datasegcnt - 1) == i)
bf_set(lpfc_sli4_sge_last, sgl, 1);
physaddr = sg_dma_address(sgde);
dma_len = sg_dma_len(sgde);
sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr));
sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr));
bf_set(lpfc_sli4_sge_offset, sgl, dma_offset);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(dma_len);
dma_offset += dma_len;
sgde = sg_next(sgde);
sgl++;
num_sge++;
lsp_just_set = false;
} else {
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(phba->cfg_sg_dma_buf_size);
sgl = (struct sli4_sge *)sgl_xtra->dma_sgl;
i = i - 1;
lsp_just_set = true;
}
j++;
}
out:
return num_sge;
}
/**
* lpfc_bg_setup_sgl_prot - Setup BlockGuard SGL with protection data
* @phba: The Hba for which this call is being executed.
* @sc: pointer to scsi command we're working on
* @sgl: pointer to buffer list for protection groups
* @datacnt: number of segments of data that have been dma mapped
* @protcnt: number of segment of protection data that have been dma mapped
* @lpfc_cmd: lpfc scsi command object pointer.
*
* This function sets up SGL buffer list for protection groups of
* type LPFC_PG_TYPE_DIF
*
* This is usually used when DIFs are in their own buffers,
* separate from the data. The HBA can then by instructed
* to place the DIFs in the outgoing stream. For read operations,
* The HBA could extract the DIFs and place it in DIF buffers.
*
* The buffer list for this type consists of one or more of the
* protection groups described below:
* +-------------------------+
* start of first prot group --> | DISEED |
* +-------------------------+
* | DIF (Prot SGE) |
* +-------------------------+
* | Data SGE |
* +-------------------------+
* |more Data SGE's ... (opt)|
* +-------------------------+
* start of new prot group --> | DISEED |
* +-------------------------+
* | ... |
* +-------------------------+
*
* Note: It is assumed that both data and protection s/g buffers have been
* mapped for DMA
*
* Returns the number of SGEs added to the SGL.
**/
static int
lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
struct sli4_sge *sgl, int datacnt, int protcnt,
struct lpfc_io_buf *lpfc_cmd)
{
struct scatterlist *sgde = NULL; /* s/g data entry */
struct scatterlist *sgpe = NULL; /* s/g prot entry */
struct sli4_sge_diseed *diseed = NULL;
dma_addr_t dataphysaddr, protphysaddr;
unsigned short curr_prot = 0;
unsigned int split_offset;
unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder;
unsigned int protgrp_blks, protgrp_bytes;
unsigned int remainder, subtotal;
int status;
unsigned char pgdone = 0, alldone = 0;
unsigned blksize;
uint32_t reftag;
uint8_t txop, rxop;
uint32_t dma_len;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
uint32_t rc;
#endif
uint32_t checking = 1;
uint32_t dma_offset = 0;
int num_sge = 0, j = 2;
struct sli4_hybrid_sgl *sgl_xtra = NULL;
sgpe = scsi_prot_sglist(sc);
sgde = scsi_sglist(sc);
if (!sgpe || !sgde) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9082 Invalid s/g entry: data=x%px prot=x%px\n",
sgpe, sgde);
return 0;
}
status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop);
if (status)
goto out;
/* extract some info from the scsi command */
blksize = scsi_prot_interval(sc);
reftag = scsi_prot_ref_tag(sc);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1);
if (rc) {
if (rc & BG_ERR_SWAP)
lpfc_bg_err_opcodes(phba, sc, &txop, &rxop);
if (rc & BG_ERR_CHECK)
checking = 0;
}
#endif
split_offset = 0;
do {
/* Check to see if we ran out of space */
if ((num_sge >= (phba->cfg_total_seg_cnt - 2)) &&
!(phba->cfg_xpsgl))
return num_sge + 3;
/* DISEED and DIF have to be together */
if (!((j + 1) % phba->border_sge_num) ||
!((j + 2) % phba->border_sge_num) ||
!((j + 3) % phba->border_sge_num)) {
sgl->word2 = 0;
/* set LSP type */
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_LSP);
sgl_xtra = lpfc_get_sgl_per_hdwq(phba, lpfc_cmd);
if (unlikely(!sgl_xtra)) {
goto out;
} else {
sgl->addr_lo = cpu_to_le32(putPaddrLow(
sgl_xtra->dma_phys_sgl));
sgl->addr_hi = cpu_to_le32(putPaddrHigh(
sgl_xtra->dma_phys_sgl));
}
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(phba->cfg_sg_dma_buf_size);
sgl = (struct sli4_sge *)sgl_xtra->dma_sgl;
j = 0;
}
/* setup DISEED with what we have */
diseed = (struct sli4_sge_diseed *) sgl;
memset(diseed, 0, sizeof(struct sli4_sge_diseed));
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED);
/* Endianness conversion if necessary */
diseed->ref_tag = cpu_to_le32(reftag);
diseed->ref_tag_tran = diseed->ref_tag;
if (sc->prot_flags & SCSI_PROT_GUARD_CHECK) {
bf_set(lpfc_sli4_sge_dif_ce, diseed, checking);
} else {
bf_set(lpfc_sli4_sge_dif_ce, diseed, 0);
/*
* When in this mode, the hardware will replace
* the guard tag from the host with a
* newly generated good CRC for the wire.
* Switch to raw mode here to avoid this
* behavior. What the host sends gets put on the wire.
*/
if (txop == BG_OP_IN_CRC_OUT_CRC) {
txop = BG_OP_RAW_MODE;
rxop = BG_OP_RAW_MODE;
}
}
if (sc->prot_flags & SCSI_PROT_REF_CHECK)
bf_set(lpfc_sli4_sge_dif_re, diseed, checking);
else
bf_set(lpfc_sli4_sge_dif_re, diseed, 0);
/* setup DISEED with the rest of the info */
bf_set(lpfc_sli4_sge_dif_optx, diseed, txop);
bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop);
bf_set(lpfc_sli4_sge_dif_ai, diseed, 1);
bf_set(lpfc_sli4_sge_dif_me, diseed, 0);
/* Endianness conversion if necessary for DISEED */
diseed->word2 = cpu_to_le32(diseed->word2);
diseed->word3 = cpu_to_le32(diseed->word3);
/* advance sgl and increment bde count */
num_sge++;
sgl++;
j++;
/* setup the first BDE that points to protection buffer */
protphysaddr = sg_dma_address(sgpe) + protgroup_offset;
protgroup_len = sg_dma_len(sgpe) - protgroup_offset;
/* must be integer multiple of the DIF block length */
BUG_ON(protgroup_len % 8);
/* Now setup DIF SGE */
sgl->word2 = 0;
bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DIF);
sgl->addr_hi = le32_to_cpu(putPaddrHigh(protphysaddr));
sgl->addr_lo = le32_to_cpu(putPaddrLow(protphysaddr));
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = 0;
protgrp_blks = protgroup_len / 8;
protgrp_bytes = protgrp_blks * blksize;
/* check if DIF SGE is crossing the 4K boundary; if so split */
if ((sgl->addr_lo & 0xfff) + protgroup_len > 0x1000) {
protgroup_remainder = 0x1000 - (sgl->addr_lo & 0xfff);
protgroup_offset += protgroup_remainder;
protgrp_blks = protgroup_remainder / 8;
protgrp_bytes = protgrp_blks * blksize;
} else {
protgroup_offset = 0;
curr_prot++;
}
num_sge++;
/* setup SGE's for data blocks associated with DIF data */
pgdone = 0;
subtotal = 0; /* total bytes processed for current prot grp */
sgl++;
j++;
while (!pgdone) {
/* Check to see if we ran out of space */
if ((num_sge >= phba->cfg_total_seg_cnt) &&
!phba->cfg_xpsgl)
return num_sge + 1;
if (!sgde) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9086 BLKGRD:%s Invalid data segment\n",
__func__);
return 0;
}
if (!((j + 1) % phba->border_sge_num)) {
sgl->word2 = 0;
/* set LSP type */
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_LSP);
sgl_xtra = lpfc_get_sgl_per_hdwq(phba,
lpfc_cmd);
if (unlikely(!sgl_xtra)) {
goto out;
} else {
sgl->addr_lo = cpu_to_le32(
putPaddrLow(sgl_xtra->dma_phys_sgl));
sgl->addr_hi = cpu_to_le32(
putPaddrHigh(sgl_xtra->dma_phys_sgl));
}
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(
phba->cfg_sg_dma_buf_size);
sgl = (struct sli4_sge *)sgl_xtra->dma_sgl;
} else {
dataphysaddr = sg_dma_address(sgde) +
split_offset;
remainder = sg_dma_len(sgde) - split_offset;
if ((subtotal + remainder) <= protgrp_bytes) {
/* we can use this whole buffer */
dma_len = remainder;
split_offset = 0;
if ((subtotal + remainder) ==
protgrp_bytes)
pgdone = 1;
} else {
/* must split this buffer with next
* prot grp
*/
dma_len = protgrp_bytes - subtotal;
split_offset += dma_len;
}
subtotal += dma_len;
sgl->word2 = 0;
sgl->addr_lo = cpu_to_le32(putPaddrLow(
dataphysaddr));
sgl->addr_hi = cpu_to_le32(putPaddrHigh(
dataphysaddr));
bf_set(lpfc_sli4_sge_last, sgl, 0);
bf_set(lpfc_sli4_sge_offset, sgl, dma_offset);
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_DATA);
sgl->sge_len = cpu_to_le32(dma_len);
dma_offset += dma_len;
num_sge++;
if (split_offset) {
sgl++;
j++;
break;
}
/* Move to the next s/g segment if possible */
sgde = sg_next(sgde);
sgl++;
}
j++;
}
if (protgroup_offset) {
/* update the reference tag */
reftag += protgrp_blks;
continue;
}
/* are we done ? */
if (curr_prot == protcnt) {
/* mark the last SGL */
sgl--;
bf_set(lpfc_sli4_sge_last, sgl, 1);
alldone = 1;
} else if (curr_prot < protcnt) {
/* advance to next prot buffer */
sgpe = sg_next(sgpe);
/* update the reference tag */
reftag += protgrp_blks;
} else {
/* if we're here, we have a bug */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9085 BLKGRD: bug in %s\n", __func__);
}
} while (!alldone);
out:
return num_sge;
}
/**
* lpfc_prot_group_type - Get prtotection group type of SCSI command
* @phba: The Hba for which this call is being executed.
* @sc: pointer to scsi command we're working on
*
* Given a SCSI command that supports DIF, determine composition of protection
* groups involved in setting up buffer lists
*
* Returns: Protection group type (with or without DIF)
*
**/
static int
lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc)
{
int ret = LPFC_PG_TYPE_INVALID;
unsigned char op = scsi_get_prot_op(sc);
switch (op) {
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
ret = LPFC_PG_TYPE_NO_DIF;
break;
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
ret = LPFC_PG_TYPE_DIF_BUF;
break;
default:
if (phba)
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9021 Unsupported protection op:%d\n",
op);
break;
}
return ret;
}
/**
* lpfc_bg_scsi_adjust_dl - Adjust SCSI data length for BlockGuard
* @phba: The Hba for which this call is being executed.
* @lpfc_cmd: The scsi buffer which is going to be adjusted.
*
* Adjust the data length to account for how much data
* is actually on the wire.
*
* returns the adjusted data length
**/
static int
lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba,
struct lpfc_io_buf *lpfc_cmd)
{
struct scsi_cmnd *sc = lpfc_cmd->pCmd;
int fcpdl;
fcpdl = scsi_bufflen(sc);
/* Check if there is protection data on the wire */
if (sc->sc_data_direction == DMA_FROM_DEVICE) {
/* Read check for protection data */
if (scsi_get_prot_op(sc) == SCSI_PROT_READ_INSERT)
return fcpdl;
} else {
/* Write check for protection data */
if (scsi_get_prot_op(sc) == SCSI_PROT_WRITE_STRIP)
return fcpdl;
}
/*
* If we are in DIF Type 1 mode every data block has a 8 byte
* DIF (trailer) attached to it. Must ajust FCP data length
* to account for the protection data.
*/
fcpdl += (fcpdl / scsi_prot_interval(sc)) * 8;
return fcpdl;
}
/**
* lpfc_bg_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec
* @phba: The Hba for which this call is being executed.
* @lpfc_cmd: The scsi buffer which is going to be prep'ed.
*
* This is the protection/DIF aware version of
* lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the
* two functions eventually, but for now, it's here.
* RETURNS 0 - SUCCESS,
* 1 - Failed DMA map, retry.
* 2 - Invalid scsi cmd or prot-type. Do not rety.
**/
static int
lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba,
struct lpfc_io_buf *lpfc_cmd)
{
struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
struct ulp_bde64 *bpl = (struct ulp_bde64 *)lpfc_cmd->dma_sgl;
IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
uint32_t num_bde = 0;
int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction;
int prot_group_type = 0;
int fcpdl;
int ret = 1;
struct lpfc_vport *vport = phba->pport;
/*
* Start the lpfc command prep by bumping the bpl beyond fcp_cmnd
* fcp_rsp regions to the first data bde entry
*/
bpl += 2;
if (scsi_sg_count(scsi_cmnd)) {
/*
* The driver stores the segment count returned from dma_map_sg
* because this a count of dma-mappings used to map the use_sg
* pages. They are not guaranteed to be the same for those
* architectures that implement an IOMMU.
*/
datasegcnt = dma_map_sg(&phba->pcidev->dev,
scsi_sglist(scsi_cmnd),
scsi_sg_count(scsi_cmnd), datadir);
if (unlikely(!datasegcnt))
return 1;
lpfc_cmd->seg_cnt = datasegcnt;
/* First check if data segment count from SCSI Layer is good */
if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt);
ret = 2;
goto err;
}
prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd);
switch (prot_group_type) {
case LPFC_PG_TYPE_NO_DIF:
/* Here we need to add a PDE5 and PDE6 to the count */
if ((lpfc_cmd->seg_cnt + 2) > phba->cfg_total_seg_cnt) {
ret = 2;
goto err;
}
num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl,
datasegcnt);
/* we should have 2 or more entries in buffer list */
if (num_bde < 2) {
ret = 2;
goto err;
}
break;
case LPFC_PG_TYPE_DIF_BUF:
/*
* This type indicates that protection buffers are
* passed to the driver, so that needs to be prepared
* for DMA
*/
protsegcnt = dma_map_sg(&phba->pcidev->dev,
scsi_prot_sglist(scsi_cmnd),
scsi_prot_sg_count(scsi_cmnd), datadir);
if (unlikely(!protsegcnt)) {
scsi_dma_unmap(scsi_cmnd);
return 1;
}
lpfc_cmd->prot_seg_cnt = protsegcnt;
/*
* There is a minimun of 4 BPLs used for every
* protection data segment.
*/
if ((lpfc_cmd->prot_seg_cnt * 4) >
(phba->cfg_total_seg_cnt - 2)) {
ret = 2;
goto err;
}
num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl,
datasegcnt, protsegcnt);
/* we should have 3 or more entries in buffer list */
if ((num_bde < 3) ||
(num_bde > phba->cfg_total_seg_cnt)) {
ret = 2;
goto err;
}
break;
case LPFC_PG_TYPE_INVALID:
default:
scsi_dma_unmap(scsi_cmnd);
lpfc_cmd->seg_cnt = 0;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9022 Unexpected protection group %i\n",
prot_group_type);
return 2;
}
}
/*
* Finish initializing those IOCB fields that are dependent on the
* scsi_cmnd request_buffer. Note that the bdeSize is explicitly
* reinitialized since all iocb memory resources are used many times
* for transmit, receive, and continuation bpl's.
*/
iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64));
iocb_cmd->ulpBdeCount = 1;
iocb_cmd->ulpLe = 1;
fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd);
fcp_cmnd->fcpDl = be32_to_cpu(fcpdl);
/*
* Due to difference in data length between DIF/non-DIF paths,
* we need to set word 4 of IOCB here
*/
iocb_cmd->un.fcpi.fcpi_parm = fcpdl;
/*
* For First burst, we may need to adjust the initial transfer
* length for DIF
*/
if (iocb_cmd->un.fcpi.fcpi_XRdy &&
(fcpdl < vport->cfg_first_burst_size))
iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl;
return 0;
err:
if (lpfc_cmd->seg_cnt)
scsi_dma_unmap(scsi_cmnd);
if (lpfc_cmd->prot_seg_cnt)
dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd),
scsi_prot_sg_count(scsi_cmnd),
scsi_cmnd->sc_data_direction);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9023 Cannot setup S/G List for HBA"
"IO segs %d/%d BPL %d SCSI %d: %d %d\n",
lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt,
phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt,
prot_group_type, num_bde);
lpfc_cmd->seg_cnt = 0;
lpfc_cmd->prot_seg_cnt = 0;
return ret;
}
/*
* This function calcuates the T10 DIF guard tag
* on the specified data using a CRC algorithmn
* using crc_t10dif.
*/
static uint16_t
lpfc_bg_crc(uint8_t *data, int count)
{
uint16_t crc = 0;
uint16_t x;
crc = crc_t10dif(data, count);
x = cpu_to_be16(crc);
return x;
}
/*
* This function calcuates the T10 DIF guard tag
* on the specified data using a CSUM algorithmn
* using ip_compute_csum.
*/
static uint16_t
lpfc_bg_csum(uint8_t *data, int count)
{
uint16_t ret;
ret = ip_compute_csum(data, count);
return ret;
}
/*
* This function examines the protection data to try to determine
* what type of T10-DIF error occurred.
*/
static void
lpfc_calc_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
{
struct scatterlist *sgpe; /* s/g prot entry */
struct scatterlist *sgde; /* s/g data entry */
struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
struct scsi_dif_tuple *src = NULL;
uint8_t *data_src = NULL;
uint16_t guard_tag;
uint16_t start_app_tag, app_tag;
uint32_t start_ref_tag, ref_tag;
int prot, protsegcnt;
int err_type, len, data_len;
int chk_ref, chk_app, chk_guard;
uint16_t sum;
unsigned blksize;
err_type = BGS_GUARD_ERR_MASK;
sum = 0;
guard_tag = 0;
/* First check to see if there is protection data to examine */
prot = scsi_get_prot_op(cmd);
if ((prot == SCSI_PROT_READ_STRIP) ||
(prot == SCSI_PROT_WRITE_INSERT) ||
(prot == SCSI_PROT_NORMAL))
goto out;
/* Currently the driver just supports ref_tag and guard_tag checking */
chk_ref = 1;
chk_app = 0;
chk_guard = 0;
/* Setup a ptr to the protection data provided by the SCSI host */
sgpe = scsi_prot_sglist(cmd);
protsegcnt = lpfc_cmd->prot_seg_cnt;
if (sgpe && protsegcnt) {
/*
* We will only try to verify guard tag if the segment
* data length is a multiple of the blksize.
*/
sgde = scsi_sglist(cmd);
blksize = scsi_prot_interval(cmd);
data_src = (uint8_t *)sg_virt(sgde);
data_len = sgde->length;
if ((data_len & (blksize - 1)) == 0)
chk_guard = 1;
src = (struct scsi_dif_tuple *)sg_virt(sgpe);
start_ref_tag = scsi_prot_ref_tag(cmd);
start_app_tag = src->app_tag;
len = sgpe->length;
while (src && protsegcnt) {
while (len) {
/*
* First check to see if a protection data
* check is valid
*/
if ((src->ref_tag == T10_PI_REF_ESCAPE) ||
(src->app_tag == T10_PI_APP_ESCAPE)) {
start_ref_tag++;
goto skipit;
}
/* First Guard Tag checking */
if (chk_guard) {
guard_tag = src->guard_tag;
if (cmd->prot_flags
& SCSI_PROT_IP_CHECKSUM)
sum = lpfc_bg_csum(data_src,
blksize);
else
sum = lpfc_bg_crc(data_src,
blksize);
if ((guard_tag != sum)) {
err_type = BGS_GUARD_ERR_MASK;
goto out;
}
}
/* Reference Tag checking */
ref_tag = be32_to_cpu(src->ref_tag);
if (chk_ref && (ref_tag != start_ref_tag)) {
err_type = BGS_REFTAG_ERR_MASK;
goto out;
}
start_ref_tag++;
/* App Tag checking */
app_tag = src->app_tag;
if (chk_app && (app_tag != start_app_tag)) {
err_type = BGS_APPTAG_ERR_MASK;
goto out;
}
skipit:
len -= sizeof(struct scsi_dif_tuple);
if (len < 0)
len = 0;
src++;
data_src += blksize;
data_len -= blksize;
/*
* Are we at the end of the Data segment?
* The data segment is only used for Guard
* tag checking.
*/
if (chk_guard && (data_len == 0)) {
chk_guard = 0;
sgde = sg_next(sgde);
if (!sgde)
goto out;
data_src = (uint8_t *)sg_virt(sgde);
data_len = sgde->length;
if ((data_len & (blksize - 1)) == 0)
chk_guard = 1;
}
}
/* Goto the next Protection data segment */
sgpe = sg_next(sgpe);
if (sgpe) {
src = (struct scsi_dif_tuple *)sg_virt(sgpe);
len = sgpe->length;
} else {
src = NULL;
}
protsegcnt--;
}
}
out:
if (err_type == BGS_GUARD_ERR_MASK) {
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
set_host_byte(cmd, DID_ABORT);
phba->bg_guard_err_cnt++;
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9069 BLKGRD: reftag %x grd_tag err %x != %x\n",
scsi_prot_ref_tag(cmd),
sum, guard_tag);
} else if (err_type == BGS_REFTAG_ERR_MASK) {
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
set_host_byte(cmd, DID_ABORT);
phba->bg_reftag_err_cnt++;
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9066 BLKGRD: reftag %x ref_tag err %x != %x\n",
scsi_prot_ref_tag(cmd),
ref_tag, start_ref_tag);
} else if (err_type == BGS_APPTAG_ERR_MASK) {
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
set_host_byte(cmd, DID_ABORT);
phba->bg_apptag_err_cnt++;
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9041 BLKGRD: reftag %x app_tag err %x != %x\n",
scsi_prot_ref_tag(cmd),
app_tag, start_app_tag);
}
}
/*
* This function checks for BlockGuard errors detected by
* the HBA. In case of errors, the ASC/ASCQ fields in the
* sense buffer will be set accordingly, paired with
* ILLEGAL_REQUEST to signal to the kernel that the HBA
* detected corruption.
*
* Returns:
* 0 - No error found
* 1 - BlockGuard error found
* -1 - Internal error (bad profile, ...etc)
*/
static int
lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd,
struct lpfc_iocbq *pIocbOut)
{
struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
struct sli3_bg_fields *bgf;
int ret = 0;
struct lpfc_wcqe_complete *wcqe;
u32 status;
u32 bghm = 0;
u32 bgstat = 0;
u64 failing_sector = 0;
if (phba->sli_rev == LPFC_SLI_REV4) {
wcqe = &pIocbOut->wcqe_cmpl;
status = bf_get(lpfc_wcqe_c_status, wcqe);
if (status == CQE_STATUS_DI_ERROR) {
/* Guard Check failed */
if (bf_get(lpfc_wcqe_c_bg_ge, wcqe))
bgstat |= BGS_GUARD_ERR_MASK;
/* AppTag Check failed */
if (bf_get(lpfc_wcqe_c_bg_ae, wcqe))
bgstat |= BGS_APPTAG_ERR_MASK;
/* RefTag Check failed */
if (bf_get(lpfc_wcqe_c_bg_re, wcqe))
bgstat |= BGS_REFTAG_ERR_MASK;
/* Check to see if there was any good data before the
* error
*/
if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
bgstat |= BGS_HI_WATER_MARK_PRESENT_MASK;
bghm = wcqe->total_data_placed;
}
/*
* Set ALL the error bits to indicate we don't know what
* type of error it is.
*/
if (!bgstat)
bgstat |= (BGS_REFTAG_ERR_MASK |
BGS_APPTAG_ERR_MASK |
BGS_GUARD_ERR_MASK);
}
} else {
bgf = &pIocbOut->iocb.unsli3.sli3_bg;
bghm = bgf->bghm;
bgstat = bgf->bgstat;
}
if (lpfc_bgs_get_invalid_prof(bgstat)) {
cmd->result = DID_ERROR << 16;
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9072 BLKGRD: Invalid BG Profile in cmd "
"0x%x reftag 0x%x blk cnt 0x%x "
"bgstat=x%x bghm=x%x\n", cmd->cmnd[0],
scsi_prot_ref_tag(cmd),
scsi_logical_block_count(cmd), bgstat, bghm);
ret = (-1);
goto out;
}
if (lpfc_bgs_get_uninit_dif_block(bgstat)) {
cmd->result = DID_ERROR << 16;
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9073 BLKGRD: Invalid BG PDIF Block in cmd "
"0x%x reftag 0x%x blk cnt 0x%x "
"bgstat=x%x bghm=x%x\n", cmd->cmnd[0],
scsi_prot_ref_tag(cmd),
scsi_logical_block_count(cmd), bgstat, bghm);
ret = (-1);
goto out;
}
if (lpfc_bgs_get_guard_err(bgstat)) {
ret = 1;
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
set_host_byte(cmd, DID_ABORT);
phba->bg_guard_err_cnt++;
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9055 BLKGRD: Guard Tag error in cmd "
"0x%x reftag 0x%x blk cnt 0x%x "
"bgstat=x%x bghm=x%x\n", cmd->cmnd[0],
scsi_prot_ref_tag(cmd),
scsi_logical_block_count(cmd), bgstat, bghm);
}
if (lpfc_bgs_get_reftag_err(bgstat)) {
ret = 1;
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
set_host_byte(cmd, DID_ABORT);
phba->bg_reftag_err_cnt++;
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9056 BLKGRD: Ref Tag error in cmd "
"0x%x reftag 0x%x blk cnt 0x%x "
"bgstat=x%x bghm=x%x\n", cmd->cmnd[0],
scsi_prot_ref_tag(cmd),
scsi_logical_block_count(cmd), bgstat, bghm);
}
if (lpfc_bgs_get_apptag_err(bgstat)) {
ret = 1;
scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
set_host_byte(cmd, DID_ABORT);
phba->bg_apptag_err_cnt++;
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9061 BLKGRD: App Tag error in cmd "
"0x%x reftag 0x%x blk cnt 0x%x "
"bgstat=x%x bghm=x%x\n", cmd->cmnd[0],
scsi_prot_ref_tag(cmd),
scsi_logical_block_count(cmd), bgstat, bghm);
}
if (lpfc_bgs_get_hi_water_mark_present(bgstat)) {
/*
* setup sense data descriptor 0 per SPC-4 as an information
* field, and put the failing LBA in it.
* This code assumes there was also a guard/app/ref tag error
* indication.
*/
cmd->sense_buffer[7] = 0xc; /* Additional sense length */
cmd->sense_buffer[8] = 0; /* Information descriptor type */
cmd->sense_buffer[9] = 0xa; /* Additional descriptor length */
cmd->sense_buffer[10] = 0x80; /* Validity bit */
/* bghm is a "on the wire" FC frame based count */
switch (scsi_get_prot_op(cmd)) {
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
bghm /= cmd->device->sector_size;
break;
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
bghm /= (cmd->device->sector_size +
sizeof(struct scsi_dif_tuple));
break;
}
failing_sector = scsi_get_lba(cmd);
failing_sector += bghm;
/* Descriptor Information */
put_unaligned_be64(failing_sector, &cmd->sense_buffer[12]);
}
if (!ret) {
/* No error was reported - problem in FW? */
lpfc_printf_log(phba, KERN_WARNING, LOG_FCP | LOG_BG,
"9057 BLKGRD: Unknown error in cmd "
"0x%x reftag 0x%x blk cnt 0x%x "
"bgstat=x%x bghm=x%x\n", cmd->cmnd[0],
scsi_prot_ref_tag(cmd),
scsi_logical_block_count(cmd), bgstat, bghm);
/* Calculate what type of error it was */
lpfc_calc_bg_err(phba, lpfc_cmd);
}
out:
return ret;
}
/**
* lpfc_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec
* @phba: The Hba for which this call is being executed.
* @lpfc_cmd: The scsi buffer which is going to be mapped.
*
* This routine does the pci dma mapping for scatter-gather list of scsi cmnd
* field of @lpfc_cmd for device with SLI-4 interface spec.
*
* Return codes:
* 2 - Error - Do not retry
* 1 - Error - Retry
* 0 - Success
**/
static int
lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
{
struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
struct scatterlist *sgel = NULL;
struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
struct sli4_sge *first_data_sgl;
struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq;
struct lpfc_vport *vport = phba->pport;
union lpfc_wqe128 *wqe = &pwqeq->wqe;
dma_addr_t physaddr;
uint32_t dma_len;
uint32_t dma_offset = 0;
int nseg, i, j;
struct ulp_bde64 *bde;
bool lsp_just_set = false;
struct sli4_hybrid_sgl *sgl_xtra = NULL;
/*
* There are three possibilities here - use scatter-gather segment, use
* the single mapping, or neither. Start the lpfc command prep by
* bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first
* data bde entry.
*/
if (scsi_sg_count(scsi_cmnd)) {
/*
* The driver stores the segment count returned from dma_map_sg
* because this a count of dma-mappings used to map the use_sg
* pages. They are not guaranteed to be the same for those
* architectures that implement an IOMMU.
*/
nseg = scsi_dma_map(scsi_cmnd);
if (unlikely(nseg <= 0))
return 1;
sgl += 1;
/* clear the last flag in the fcp_rsp map entry */
sgl->word2 = le32_to_cpu(sgl->word2);
bf_set(lpfc_sli4_sge_last, sgl, 0);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl += 1;
first_data_sgl = sgl;
lpfc_cmd->seg_cnt = nseg;
if (!phba->cfg_xpsgl &&
lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9074 BLKGRD:"
" %s: Too many sg segments from "
"dma_map_sg. Config %d, seg_cnt %d\n",
__func__, phba->cfg_sg_seg_cnt,
lpfc_cmd->seg_cnt);
WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt);
lpfc_cmd->seg_cnt = 0;
scsi_dma_unmap(scsi_cmnd);
return 2;
}
/*
* The driver established a maximum scatter-gather segment count
* during probe that limits the number of sg elements in any
* single scsi command. Just run through the seg_cnt and format
* the sge's.
* When using SLI-3 the driver will try to fit all the BDEs into
* the IOCB. If it can't then the BDEs get added to a BPL as it
* does for SLI-2 mode.
*/
/* for tracking segment boundaries */
sgel = scsi_sglist(scsi_cmnd);
j = 2;
for (i = 0; i < nseg; i++) {
sgl->word2 = 0;
if (nseg == 1) {
bf_set(lpfc_sli4_sge_last, sgl, 1);
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_DATA);
} else {
bf_set(lpfc_sli4_sge_last, sgl, 0);
/* do we need to expand the segment */
if (!lsp_just_set &&
!((j + 1) % phba->border_sge_num) &&
((nseg - 1) != i)) {
/* set LSP type */
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_LSP);
sgl_xtra = lpfc_get_sgl_per_hdwq(
phba, lpfc_cmd);
if (unlikely(!sgl_xtra)) {
lpfc_cmd->seg_cnt = 0;
scsi_dma_unmap(scsi_cmnd);
return 1;
}
sgl->addr_lo = cpu_to_le32(putPaddrLow(
sgl_xtra->dma_phys_sgl));
sgl->addr_hi = cpu_to_le32(putPaddrHigh(
sgl_xtra->dma_phys_sgl));
} else {
bf_set(lpfc_sli4_sge_type, sgl,
LPFC_SGE_TYPE_DATA);
}
}
if (!(bf_get(lpfc_sli4_sge_type, sgl) &
LPFC_SGE_TYPE_LSP)) {
if ((nseg - 1) == i)
bf_set(lpfc_sli4_sge_last, sgl, 1);
physaddr = sg_dma_address(sgel);
dma_len = sg_dma_len(sgel);
sgl->addr_lo = cpu_to_le32(putPaddrLow(
physaddr));
sgl->addr_hi = cpu_to_le32(putPaddrHigh(
physaddr));
bf_set(lpfc_sli4_sge_offset, sgl, dma_offset);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(dma_len);
dma_offset += dma_len;
sgel = sg_next(sgel);
sgl++;
lsp_just_set = false;
} else {
sgl->word2 = cpu_to_le32(sgl->word2);
sgl->sge_len = cpu_to_le32(
phba->cfg_sg_dma_buf_size);
sgl = (struct sli4_sge *)sgl_xtra->dma_sgl;
i = i - 1;
lsp_just_set = true;
}
j++;
}
/* PBDE support for first data SGE only.
* For FCoE, we key off Performance Hints.
* For FC, we key off lpfc_enable_pbde.
*/
if (nseg == 1 &&
((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) ||
phba->cfg_enable_pbde)) {
/* Words 13-15 */
bde = (struct ulp_bde64 *)
&wqe->words[13];
bde->addrLow = first_data_sgl->addr_lo;
bde->addrHigh = first_data_sgl->addr_hi;
bde->tus.f.bdeSize =
le32_to_cpu(first_data_sgl->sge_len);
bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
bde->tus.w = cpu_to_le32(bde->tus.w);
/* Word 11 - set PBDE bit */
bf_set(wqe_pbde, &wqe->generic.wqe_com, 1);
} else {
memset(&wqe->words[13], 0, (sizeof(uint32_t) * 3));
/* Word 11 - PBDE bit disabled by default template */
}
} else {
sgl += 1;
/* set the last flag in the fcp_rsp map entry */
sgl->word2 = le32_to_cpu(sgl->word2);
bf_set(lpfc_sli4_sge_last, sgl, 1);
sgl->word2 = cpu_to_le32(sgl->word2);
if ((phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) ||
phba->cfg_enable_pbde) {
bde = (struct ulp_bde64 *)
&wqe->words[13];
memset(bde, 0, (sizeof(uint32_t) * 3));
}
}
/*
* Finish initializing those IOCB fields that are dependent on the
* scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is
* explicitly reinitialized.
* all iocb memory resources are reused.
*/
fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd));
/* Set first-burst provided it was successfully negotiated */
if (!(phba->hba_flag & HBA_FCOE_MODE) &&
vport->cfg_first_burst_size &&
scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) {
u32 init_len, total_len;
total_len = be32_to_cpu(fcp_cmnd->fcpDl);
init_len = min(total_len, vport->cfg_first_burst_size);
/* Word 4 & 5 */
wqe->fcp_iwrite.initial_xfer_len = init_len;
wqe->fcp_iwrite.total_xfer_len = total_len;
} else {
/* Word 4 */
wqe->fcp_iwrite.total_xfer_len =
be32_to_cpu(fcp_cmnd->fcpDl);
}
/*
* If the OAS driver feature is enabled and the lun is enabled for
* OAS, set the oas iocb related flags.
*/
if ((phba->cfg_fof) && ((struct lpfc_device_data *)
scsi_cmnd->device->hostdata)->oas_enabled) {
lpfc_cmd->cur_iocbq.cmd_flag |= (LPFC_IO_OAS | LPFC_IO_FOF);
lpfc_cmd->cur_iocbq.priority = ((struct lpfc_device_data *)
scsi_cmnd->device->hostdata)->priority;
/* Word 10 */
bf_set(wqe_oas, &wqe->generic.wqe_com, 1);
bf_set(wqe_ccpe, &wqe->generic.wqe_com, 1);
if (lpfc_cmd->cur_iocbq.priority)
bf_set(wqe_ccp, &wqe->generic.wqe_com,
(lpfc_cmd->cur_iocbq.priority << 1));
else
bf_set(wqe_ccp, &wqe->generic.wqe_com,
(phba->cfg_XLanePriority << 1));
}
return 0;
}
/**
* lpfc_bg_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec
* @phba: The Hba for which this call is being executed.
* @lpfc_cmd: The scsi buffer which is going to be mapped.
*
* This is the protection/DIF aware version of
* lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the
* two functions eventually, but for now, it's here
* Return codes:
* 2 - Error - Do not retry
* 1 - Error - Retry
* 0 - Success
**/
static int
lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba,
struct lpfc_io_buf *lpfc_cmd)
{
struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->dma_sgl);
struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq;
union lpfc_wqe128 *wqe = &pwqeq->wqe;
uint32_t num_sge = 0;
int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction;
int prot_group_type = 0;
int fcpdl;
int ret = 1;
struct lpfc_vport *vport = phba->pport;
/*
* Start the lpfc command prep by bumping the sgl beyond fcp_cmnd
* fcp_rsp regions to the first data sge entry
*/
if (scsi_sg_count(scsi_cmnd)) {
/*
* The driver stores the segment count returned from dma_map_sg
* because this a count of dma-mappings used to map the use_sg
* pages. They are not guaranteed to be the same for those
* architectures that implement an IOMMU.
*/
datasegcnt = dma_map_sg(&phba->pcidev->dev,
scsi_sglist(scsi_cmnd),
scsi_sg_count(scsi_cmnd), datadir);
if (unlikely(!datasegcnt))
return 1;
sgl += 1;
/* clear the last flag in the fcp_rsp map entry */
sgl->word2 = le32_to_cpu(sgl->word2);
bf_set(lpfc_sli4_sge_last, sgl, 0);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl += 1;
lpfc_cmd->seg_cnt = datasegcnt;
/* First check if data segment count from SCSI Layer is good */
if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt &&
!phba->cfg_xpsgl) {
WARN_ON_ONCE(lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt);
ret = 2;
goto err;
}
prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd);
switch (prot_group_type) {
case LPFC_PG_TYPE_NO_DIF:
/* Here we need to add a DISEED to the count */
if (((lpfc_cmd->seg_cnt + 1) >
phba->cfg_total_seg_cnt) &&
!phba->cfg_xpsgl) {
ret = 2;
goto err;
}
num_sge = lpfc_bg_setup_sgl(phba, scsi_cmnd, sgl,
datasegcnt, lpfc_cmd);
/* we should have 2 or more entries in buffer list */
if (num_sge < 2) {
ret = 2;
goto err;
}
break;
case LPFC_PG_TYPE_DIF_BUF:
/*
* This type indicates that protection buffers are
* passed to the driver, so that needs to be prepared
* for DMA
*/
protsegcnt = dma_map_sg(&phba->pcidev->dev,
scsi_prot_sglist(scsi_cmnd),
scsi_prot_sg_count(scsi_cmnd), datadir);
if (unlikely(!protsegcnt)) {
scsi_dma_unmap(scsi_cmnd);
return 1;
}
lpfc_cmd->prot_seg_cnt = protsegcnt;
/*
* There is a minimun of 3 SGEs used for every
* protection data segment.
*/
if (((lpfc_cmd->prot_seg_cnt * 3) >
(phba->cfg_total_seg_cnt - 2)) &&
!phba->cfg_xpsgl) {
ret = 2;
goto err;
}
num_sge = lpfc_bg_setup_sgl_prot(phba, scsi_cmnd, sgl,
datasegcnt, protsegcnt, lpfc_cmd);
/* we should have 3 or more entries in buffer list */
if (num_sge < 3 ||
(num_sge > phba->cfg_total_seg_cnt &&
!phba->cfg_xpsgl)) {
ret = 2;
goto err;
}
break;
case LPFC_PG_TYPE_INVALID:
default:
scsi_dma_unmap(scsi_cmnd);
lpfc_cmd->seg_cnt = 0;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9083 Unexpected protection group %i\n",
prot_group_type);
return 2;
}
}
switch (scsi_get_prot_op(scsi_cmnd)) {
case SCSI_PROT_WRITE_STRIP:
case SCSI_PROT_READ_STRIP:
lpfc_cmd->cur_iocbq.cmd_flag |= LPFC_IO_DIF_STRIP;
break;
case SCSI_PROT_WRITE_INSERT:
case SCSI_PROT_READ_INSERT:
lpfc_cmd->cur_iocbq.cmd_flag |= LPFC_IO_DIF_INSERT;
break;
case SCSI_PROT_WRITE_PASS:
case SCSI_PROT_READ_PASS:
lpfc_cmd->cur_iocbq.cmd_flag |= LPFC_IO_DIF_PASS;
break;
}
fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd);
fcp_cmnd->fcpDl = be32_to_cpu(fcpdl);
/* Set first-burst provided it was successfully negotiated */
if (!(phba->hba_flag & HBA_FCOE_MODE) &&
vport->cfg_first_burst_size &&
scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) {
u32 init_len, total_len;
total_len = be32_to_cpu(fcp_cmnd->fcpDl);
init_len = min(total_len, vport->cfg_first_burst_size);
/* Word 4 & 5 */
wqe->fcp_iwrite.initial_xfer_len = init_len;
wqe->fcp_iwrite.total_xfer_len = total_len;
} else {
/* Word 4 */
wqe->fcp_iwrite.total_xfer_len =
be32_to_cpu(fcp_cmnd->fcpDl);
}
/*
* If the OAS driver feature is enabled and the lun is enabled for
* OAS, set the oas iocb related flags.
*/
if ((phba->cfg_fof) && ((struct lpfc_device_data *)
scsi_cmnd->device->hostdata)->oas_enabled) {
lpfc_cmd->cur_iocbq.cmd_flag |= (LPFC_IO_OAS | LPFC_IO_FOF);
/* Word 10 */
bf_set(wqe_oas, &wqe->generic.wqe_com, 1);
bf_set(wqe_ccpe, &wqe->generic.wqe_com, 1);
bf_set(wqe_ccp, &wqe->generic.wqe_com,
(phba->cfg_XLanePriority << 1));
}
/* Word 7. DIF Flags */
if (lpfc_cmd->cur_iocbq.cmd_flag & LPFC_IO_DIF_PASS)
bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
else if (lpfc_cmd->cur_iocbq.cmd_flag & LPFC_IO_DIF_STRIP)
bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
else if (lpfc_cmd->cur_iocbq.cmd_flag & LPFC_IO_DIF_INSERT)
bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
lpfc_cmd->cur_iocbq.cmd_flag &= ~(LPFC_IO_DIF_PASS |
LPFC_IO_DIF_STRIP | LPFC_IO_DIF_INSERT);
return 0;
err:
if (lpfc_cmd->seg_cnt)
scsi_dma_unmap(scsi_cmnd);
if (lpfc_cmd->prot_seg_cnt)
dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(scsi_cmnd),
scsi_prot_sg_count(scsi_cmnd),
scsi_cmnd->sc_data_direction);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9084 Cannot setup S/G List for HBA "
"IO segs %d/%d SGL %d SCSI %d: %d %d %d\n",
lpfc_cmd->seg_cnt, lpfc_cmd->prot_seg_cnt,
phba->cfg_total_seg_cnt, phba->cfg_sg_seg_cnt,
prot_group_type, num_sge, ret);
lpfc_cmd->seg_cnt = 0;
lpfc_cmd->prot_seg_cnt = 0;
return ret;
}
/**
* lpfc_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer
* @phba: The Hba for which this call is being executed.
* @lpfc_cmd: The scsi buffer which is going to be mapped.
*
* This routine wraps the actual DMA mapping function pointer from the
* lpfc_hba struct.
*
* Return codes:
* 1 - Error
* 0 - Success
**/
static inline int
lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
{
return phba->lpfc_scsi_prep_dma_buf(phba, lpfc_cmd);
}
/**
* lpfc_bg_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer
* using BlockGuard.
* @phba: The Hba for which this call is being executed.
* @lpfc_cmd: The scsi buffer which is going to be mapped.
*
* This routine wraps the actual DMA mapping function pointer from the
* lpfc_hba struct.
*
* Return codes:
* 1 - Error
* 0 - Success
**/
static inline int
lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
{
return phba->lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd);
}
/**
* lpfc_scsi_prep_cmnd_buf - Wrapper function for IOCB/WQE mapping of scsi
* buffer
* @vport: Pointer to vport object.
* @lpfc_cmd: The scsi buffer which is going to be mapped.
* @tmo: Timeout value for IO
*
* This routine initializes IOCB/WQE data structure from scsi command
*
* Return codes:
* 1 - Error
* 0 - Success
**/
static inline int
lpfc_scsi_prep_cmnd_buf(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd,
uint8_t tmo)
{
return vport->phba->lpfc_scsi_prep_cmnd_buf(vport, lpfc_cmd, tmo);
}
/**
* lpfc_send_scsi_error_event - Posts an event when there is SCSI error
* @phba: Pointer to hba context object.
* @vport: Pointer to vport object.
* @lpfc_cmd: Pointer to lpfc scsi command which reported the error.
* @fcpi_parm: FCP Initiator parameter.
*
* This function posts an event when there is a SCSI command reporting
* error from the scsi device.
**/
static void
lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport,
struct lpfc_io_buf *lpfc_cmd, uint32_t fcpi_parm) {
struct scsi_cmnd *cmnd = lpfc_cmd->pCmd;
struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
uint32_t resp_info = fcprsp->rspStatus2;
uint32_t scsi_status = fcprsp->rspStatus3;
struct lpfc_fast_path_event *fast_path_evt = NULL;
struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode;
unsigned long flags;
if (!pnode)
return;
/* If there is queuefull or busy condition send a scsi event */
if ((cmnd->result == SAM_STAT_TASK_SET_FULL) ||
(cmnd->result == SAM_STAT_BUSY)) {
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
return;
fast_path_evt->un.scsi_evt.event_type =
FC_REG_SCSI_EVENT;
fast_path_evt->un.scsi_evt.subcategory =
(cmnd->result == SAM_STAT_TASK_SET_FULL) ?
LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY;
fast_path_evt->un.scsi_evt.lun = cmnd->device->lun;
memcpy(&fast_path_evt->un.scsi_evt.wwpn,
&pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.scsi_evt.wwnn,
&pnode->nlp_nodename, sizeof(struct lpfc_name));
} else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen &&
((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) {
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
return;
fast_path_evt->un.check_cond_evt.scsi_event.event_type =
FC_REG_SCSI_EVENT;
fast_path_evt->un.check_cond_evt.scsi_event.subcategory =
LPFC_EVENT_CHECK_COND;
fast_path_evt->un.check_cond_evt.scsi_event.lun =
cmnd->device->lun;
memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn,
&pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn,
&pnode->nlp_nodename, sizeof(struct lpfc_name));
fast_path_evt->un.check_cond_evt.sense_key =
cmnd->sense_buffer[2] & 0xf;
fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12];
fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13];
} else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) &&
fcpi_parm &&
((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) ||
((scsi_status == SAM_STAT_GOOD) &&
!(resp_info & (RESID_UNDER | RESID_OVER))))) {
/*
* If status is good or resid does not match with fcp_param and
* there is valid fcpi_parm, then there is a read_check error
*/
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
return;
fast_path_evt->un.read_check_error.header.event_type =
FC_REG_FABRIC_EVENT;
fast_path_evt->un.read_check_error.header.subcategory =
LPFC_EVENT_FCPRDCHKERR;
memcpy(&fast_path_evt->un.read_check_error.header.wwpn,
&pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.read_check_error.header.wwnn,
&pnode->nlp_nodename, sizeof(struct lpfc_name));
fast_path_evt->un.read_check_error.lun = cmnd->device->lun;
fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0];
fast_path_evt->un.read_check_error.fcpiparam =
fcpi_parm;
} else
return;
fast_path_evt->vport = vport;
spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_worker_wake_up(phba);
return;
}
/**
* lpfc_scsi_unprep_dma_buf - Un-map DMA mapping of SG-list for dev
* @phba: The HBA for which this call is being executed.
* @psb: The scsi buffer which is going to be un-mapped.
*
* This routine does DMA un-mapping of scatter gather list of scsi command
* field of @lpfc_cmd for device with SLI-3 interface spec.
**/
static void
lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_io_buf *psb)
{
/*
* There are only two special cases to consider. (1) the scsi command
* requested scatter-gather usage or (2) the scsi command allocated
* a request buffer, but did not request use_sg. There is a third
* case, but it does not require resource deallocation.
*/
if (psb->seg_cnt > 0)
scsi_dma_unmap(psb->pCmd);
if (psb->prot_seg_cnt > 0)
dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd),
scsi_prot_sg_count(psb->pCmd),
psb->pCmd->sc_data_direction);
}
/**
* lpfc_unblock_requests - allow further commands to be queued.
* @phba: pointer to phba object
*
* For single vport, just call scsi_unblock_requests on physical port.
* For multiple vports, send scsi_unblock_requests for all the vports.
*/
void
lpfc_unblock_requests(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct Scsi_Host *shost;
int i;
if (phba->sli_rev == LPFC_SLI_REV4 &&
!phba->sli4_hba.max_cfg_param.vpi_used) {
shost = lpfc_shost_from_vport(phba->pport);
scsi_unblock_requests(shost);
return;
}
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
scsi_unblock_requests(shost);
}
lpfc_destroy_vport_work_array(phba, vports);
}
/**
* lpfc_block_requests - prevent further commands from being queued.
* @phba: pointer to phba object
*
* For single vport, just call scsi_block_requests on physical port.
* For multiple vports, send scsi_block_requests for all the vports.
*/
void
lpfc_block_requests(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct Scsi_Host *shost;
int i;
if (atomic_read(&phba->cmf_stop_io))
return;
if (phba->sli_rev == LPFC_SLI_REV4 &&
!phba->sli4_hba.max_cfg_param.vpi_used) {
shost = lpfc_shost_from_vport(phba->pport);
scsi_block_requests(shost);
return;
}
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
scsi_block_requests(shost);
}
lpfc_destroy_vport_work_array(phba, vports);
}
/**
* lpfc_update_cmf_cmpl - Adjust CMF counters for IO completion
* @phba: The HBA for which this call is being executed.
* @time: The latency of the IO that completed (in ns)
* @size: The size of the IO that completed
* @shost: SCSI host the IO completed on (NULL for a NVME IO)
*
* The routine adjusts the various Burst and Bandwidth counters used in
* Congestion management and E2E. If time is set to LPFC_CGN_NOT_SENT,
* that means the IO was never issued to the HBA, so this routine is
* just being called to cleanup the counter from a previous
* lpfc_update_cmf_cmd call.
*/
int
lpfc_update_cmf_cmpl(struct lpfc_hba *phba,
uint64_t time, uint32_t size, struct Scsi_Host *shost)
{
struct lpfc_cgn_stat *cgs;
if (time != LPFC_CGN_NOT_SENT) {
/* lat is ns coming in, save latency in us */
if (time < 1000)
time = 1;
else
time = div_u64(time + 500, 1000); /* round it */
cgs = per_cpu_ptr(phba->cmf_stat, raw_smp_processor_id());
atomic64_add(size, &cgs->rcv_bytes);
atomic64_add(time, &cgs->rx_latency);
atomic_inc(&cgs->rx_io_cnt);
}
return 0;
}
/**
* lpfc_update_cmf_cmd - Adjust CMF counters for IO submission
* @phba: The HBA for which this call is being executed.
* @size: The size of the IO that will be issued
*
* The routine adjusts the various Burst and Bandwidth counters used in
* Congestion management and E2E.
*/
int
lpfc_update_cmf_cmd(struct lpfc_hba *phba, uint32_t size)
{
uint64_t total;
struct lpfc_cgn_stat *cgs;
int cpu;
/* At this point we are either LPFC_CFG_MANAGED or LPFC_CFG_MONITOR */
if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
phba->cmf_max_bytes_per_interval) {
total = 0;
for_each_present_cpu(cpu) {
cgs = per_cpu_ptr(phba->cmf_stat, cpu);
total += atomic64_read(&cgs->total_bytes);
}
if (total >= phba->cmf_max_bytes_per_interval) {
if (!atomic_xchg(&phba->cmf_bw_wait, 1)) {
lpfc_block_requests(phba);
phba->cmf_last_ts =
lpfc_calc_cmf_latency(phba);
}
atomic_inc(&phba->cmf_busy);
return -EBUSY;
}
if (size > atomic_read(&phba->rx_max_read_cnt))
atomic_set(&phba->rx_max_read_cnt, size);
}
cgs = per_cpu_ptr(phba->cmf_stat, raw_smp_processor_id());
atomic64_add(size, &cgs->total_bytes);
return 0;
}
/**
* lpfc_handle_fcp_err - FCP response handler
* @vport: The virtual port for which this call is being executed.
* @lpfc_cmd: Pointer to lpfc_io_buf data structure.
* @fcpi_parm: FCP Initiator parameter.
*
* This routine is called to process response IOCB with status field
* IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command
* based upon SCSI and FCP error.
**/
static void
lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd,
uint32_t fcpi_parm)
{
struct scsi_cmnd *cmnd = lpfc_cmd->pCmd;
struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd;
struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
uint32_t resp_info = fcprsp->rspStatus2;
uint32_t scsi_status = fcprsp->rspStatus3;
uint32_t *lp;
uint32_t host_status = DID_OK;
uint32_t rsplen = 0;
uint32_t fcpDl;
uint32_t logit = LOG_FCP | LOG_FCP_ERROR;
/*
* If this is a task management command, there is no
* scsi packet associated with this lpfc_cmd. The driver
* consumes it.
*/
if (fcpcmd->fcpCntl2) {
scsi_status = 0;
goto out;
}
if (resp_info & RSP_LEN_VALID) {
rsplen = be32_to_cpu(fcprsp->rspRspLen);
if (rsplen != 0 && rsplen != 4 && rsplen != 8) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2719 Invalid response length: "
"tgt x%x lun x%llx cmnd x%x rsplen "
"x%x\n", cmnd->device->id,
cmnd->device->lun, cmnd->cmnd[0],
rsplen);
host_status = DID_ERROR;
goto out;
}
if (fcprsp->rspInfo3 != RSP_NO_FAILURE) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2757 Protocol failure detected during "
"processing of FCP I/O op: "
"tgt x%x lun x%llx cmnd x%x rspInfo3 x%x\n",
cmnd->device->id,
cmnd->device->lun, cmnd->cmnd[0],
fcprsp->rspInfo3);
host_status = DID_ERROR;
goto out;
}
}
if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) {
uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen);
if (snslen > SCSI_SENSE_BUFFERSIZE)
snslen = SCSI_SENSE_BUFFERSIZE;
if (resp_info & RSP_LEN_VALID)
rsplen = be32_to_cpu(fcprsp->rspRspLen);
memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen);
}
lp = (uint32_t *)cmnd->sense_buffer;
/* special handling for under run conditions */
if (!scsi_status && (resp_info & RESID_UNDER)) {
/* don't log under runs if fcp set... */
if (vport->cfg_log_verbose & LOG_FCP)
logit = LOG_FCP_ERROR;
/* unless operator says so */
if (vport->cfg_log_verbose & LOG_FCP_UNDER)
logit = LOG_FCP_UNDER;
}
lpfc_printf_vlog(vport, KERN_WARNING, logit,
"9024 FCP command x%x failed: x%x SNS x%x x%x "
"Data: x%x x%x x%x x%x x%x\n",
cmnd->cmnd[0], scsi_status,
be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info,
be32_to_cpu(fcprsp->rspResId),
be32_to_cpu(fcprsp->rspSnsLen),
be32_to_cpu(fcprsp->rspRspLen),
fcprsp->rspInfo3);
scsi_set_resid(cmnd, 0);
fcpDl = be32_to_cpu(fcpcmd->fcpDl);
if (resp_info & RESID_UNDER) {
scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId));
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER,
"9025 FCP Underrun, expected %d, "
"residual %d Data: x%x x%x x%x\n",
fcpDl,
scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0],
cmnd->underflow);
/*
* If there is an under run, check if under run reported by
* storage array is same as the under run reported by HBA.
* If this is not same, there is a dropped frame.
*/
if (fcpi_parm && (scsi_get_resid(cmnd) != fcpi_parm)) {
lpfc_printf_vlog(vport, KERN_WARNING,
LOG_FCP | LOG_FCP_ERROR,
"9026 FCP Read Check Error "
"and Underrun Data: x%x x%x x%x x%x\n",
fcpDl,
scsi_get_resid(cmnd), fcpi_parm,
cmnd->cmnd[0]);
scsi_set_resid(cmnd, scsi_bufflen(cmnd));
host_status = DID_ERROR;
}
/*
* The cmnd->underflow is the minimum number of bytes that must
* be transferred for this command. Provided a sense condition
* is not present, make sure the actual amount transferred is at
* least the underflow value or fail.
*/
if (!(resp_info & SNS_LEN_VALID) &&
(scsi_status == SAM_STAT_GOOD) &&
(scsi_bufflen(cmnd) - scsi_get_resid(cmnd)
< cmnd->underflow)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"9027 FCP command x%x residual "
"underrun converted to error "
"Data: x%x x%x x%x\n",
cmnd->cmnd[0], scsi_bufflen(cmnd),
scsi_get_resid(cmnd), cmnd->underflow);
host_status = DID_ERROR;
}
} else if (resp_info & RESID_OVER) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"9028 FCP command x%x residual overrun error. "
"Data: x%x x%x\n", cmnd->cmnd[0],
scsi_bufflen(cmnd), scsi_get_resid(cmnd));
host_status = DID_ERROR;
/*
* Check SLI validation that all the transfer was actually done
* (fcpi_parm should be zero). Apply check only to reads.
*/
} else if (fcpi_parm) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR,
"9029 FCP %s Check Error Data: "
"x%x x%x x%x x%x x%x\n",
((cmnd->sc_data_direction == DMA_FROM_DEVICE) ?
"Read" : "Write"),
fcpDl, be32_to_cpu(fcprsp->rspResId),
fcpi_parm, cmnd->cmnd[0], scsi_status);
/* There is some issue with the LPe12000 that causes it
* to miscalculate the fcpi_parm and falsely trip this
* recovery logic. Detect this case and don't error when true.
*/
if (fcpi_parm > fcpDl)
goto out;
switch (scsi_status) {
case SAM_STAT_GOOD:
case SAM_STAT_CHECK_CONDITION:
/* Fabric dropped a data frame. Fail any successful
* command in which we detected dropped frames.
* A status of good or some check conditions could
* be considered a successful command.
*/
host_status = DID_ERROR;
break;
}
scsi_set_resid(cmnd, scsi_bufflen(cmnd));
}
out:
cmnd->result = host_status << 16 | scsi_status;
lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, fcpi_parm);
}
/**
* lpfc_fcp_io_cmd_wqe_cmpl - Complete a FCP IO
* @phba: The hba for which this call is being executed.
* @pwqeIn: The command WQE for the scsi cmnd.
* @pwqeOut: Pointer to driver response WQE object.
*
* This routine assigns scsi command result by looking into response WQE
* status field appropriately. This routine handles QUEUE FULL condition as
* well by ramping down device queue depth.
**/
static void
lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
struct lpfc_iocbq *pwqeOut)
{
struct lpfc_io_buf *lpfc_cmd = pwqeIn->io_buf;
struct lpfc_wcqe_complete *wcqe = &pwqeOut->wcqe_cmpl;
struct lpfc_vport *vport = pwqeIn->vport;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *ndlp;
struct scsi_cmnd *cmd;
unsigned long flags;
struct lpfc_fast_path_event *fast_path_evt;
struct Scsi_Host *shost;
u32 logit = LOG_FCP;
u32 idx;
u32 lat;
u8 wait_xb_clr = 0;
/* Sanity check on return of outstanding command */
if (!lpfc_cmd) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"9032 Null lpfc_cmd pointer. No "
"release, skip completion\n");
return;
}
rdata = lpfc_cmd->rdata;
ndlp = rdata->pnode;
/* Sanity check on return of outstanding command */
cmd = lpfc_cmd->pCmd;
if (!cmd) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"9042 I/O completion: Not an active IO\n");
lpfc_release_scsi_buf(phba, lpfc_cmd);
return;
}
/* Guard against abort handler being called at same time */
spin_lock(&lpfc_cmd->buf_lock);
idx = lpfc_cmd->cur_iocbq.hba_wqidx;
if (phba->sli4_hba.hdwq)
phba->sli4_hba.hdwq[idx].scsi_cstat.io_cmpls++;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO))
this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io);
#endif
shost = cmd->device->host;
lpfc_cmd->status = bf_get(lpfc_wcqe_c_status, wcqe);
lpfc_cmd->result = (wcqe->parameter & IOERR_PARAM_MASK);
lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
if (phba->cfg_fcp_wait_abts_rsp)
wait_xb_clr = 1;
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (lpfc_cmd->prot_data_type) {
struct scsi_dif_tuple *src = NULL;
src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment;
/*
* Used to restore any changes to protection
* data for error injection.
*/
switch (lpfc_cmd->prot_data_type) {
case LPFC_INJERR_REFTAG:
src->ref_tag =
lpfc_cmd->prot_data;
break;
case LPFC_INJERR_APPTAG:
src->app_tag =
(uint16_t)lpfc_cmd->prot_data;
break;
case LPFC_INJERR_GUARD:
src->guard_tag =
(uint16_t)lpfc_cmd->prot_data;
break;
default:
break;
}
lpfc_cmd->prot_data = 0;
lpfc_cmd->prot_data_type = 0;
lpfc_cmd->prot_data_segment = NULL;
}
#endif
if (unlikely(lpfc_cmd->status)) {
if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR &&
!lpfc_cmd->fcp_rsp->rspStatus3 &&
(lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) &&
!(vport->cfg_log_verbose & LOG_FCP_UNDER))
logit = 0;
else
logit = LOG_FCP | LOG_FCP_UNDER;
lpfc_printf_vlog(vport, KERN_WARNING, logit,
"9034 FCP cmd x%x failed <%d/%lld> "
"status: x%x result: x%x "
"sid: x%x did: x%x oxid: x%x "
"Data: x%x x%x x%x\n",
cmd->cmnd[0],
cmd->device ? cmd->device->id : 0xffff,
cmd->device ? cmd->device->lun : 0xffff,
lpfc_cmd->status, lpfc_cmd->result,
vport->fc_myDID,
(ndlp) ? ndlp->nlp_DID : 0,
lpfc_cmd->cur_iocbq.sli4_xritag,
wcqe->parameter, wcqe->total_data_placed,
lpfc_cmd->cur_iocbq.iotag);
}
switch (lpfc_cmd->status) {
case CQE_STATUS_SUCCESS:
cmd->result = DID_OK << 16;
break;
case CQE_STATUS_FCP_RSP_FAILURE:
lpfc_handle_fcp_err(vport, lpfc_cmd,
pwqeIn->wqe.fcp_iread.total_xfer_len -
wcqe->total_data_placed);
break;
case CQE_STATUS_NPORT_BSY:
case CQE_STATUS_FABRIC_BSY:
cmd->result = DID_TRANSPORT_DISRUPTED << 16;
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
break;
fast_path_evt->un.fabric_evt.event_type =
FC_REG_FABRIC_EVENT;
fast_path_evt->un.fabric_evt.subcategory =
(lpfc_cmd->status == IOSTAT_NPORT_BSY) ?
LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY;
if (ndlp) {
memcpy(&fast_path_evt->un.fabric_evt.wwpn,
&ndlp->nlp_portname,
sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.fabric_evt.wwnn,
&ndlp->nlp_nodename,
sizeof(struct lpfc_name));
}
fast_path_evt->vport = vport;
fast_path_evt->work_evt.evt =
LPFC_EVT_FASTPATH_MGMT_EVT;
spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&fast_path_evt->work_evt.evt_listp,
&phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_worker_wake_up(phba);
lpfc_printf_vlog(vport, KERN_WARNING, logit,
"9035 Fabric/Node busy FCP cmd x%x failed"
" <%d/%lld> "
"status: x%x result: x%x "
"sid: x%x did: x%x oxid: x%x "
"Data: x%x x%x x%x\n",
cmd->cmnd[0],
cmd->device ? cmd->device->id : 0xffff,
cmd->device ? cmd->device->lun : 0xffff,
lpfc_cmd->status, lpfc_cmd->result,
vport->fc_myDID,
(ndlp) ? ndlp->nlp_DID : 0,
lpfc_cmd->cur_iocbq.sli4_xritag,
wcqe->parameter,
wcqe->total_data_placed,
lpfc_cmd->cur_iocbq.iocb.ulpIoTag);
break;
case CQE_STATUS_DI_ERROR:
if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
lpfc_cmd->result = IOERR_RX_DMA_FAILED;
else
lpfc_cmd->result = IOERR_TX_DMA_FAILED;
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_BG,
"9048 DI Error xri x%x status x%x DI ext "
"status x%x data placed x%x\n",
lpfc_cmd->cur_iocbq.sli4_xritag,
lpfc_cmd->status, wcqe->parameter,
wcqe->total_data_placed);
if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
/* BG enabled cmd. Parse BG error */
lpfc_parse_bg_err(phba, lpfc_cmd, pwqeOut);
break;
}
cmd->result = DID_ERROR << 16;
lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
"9040 DI Error on unprotected cmd\n");
break;
case CQE_STATUS_REMOTE_STOP:
if (ndlp) {
/* This I/O was aborted by the target, we don't
* know the rxid and because we did not send the
* ABTS we cannot generate and RRQ.
*/
lpfc_set_rrq_active(phba, ndlp,
lpfc_cmd->cur_iocbq.sli4_lxritag,
0, 0);
}
fallthrough;
case CQE_STATUS_LOCAL_REJECT:
if (lpfc_cmd->result & IOERR_DRVR_MASK)
lpfc_cmd->status = IOSTAT_DRIVER_REJECT;
if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR ||
lpfc_cmd->result ==
IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR ||
lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR ||
lpfc_cmd->result ==
IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) {
cmd->result = DID_NO_CONNECT << 16;
break;
}
if (lpfc_cmd->result == IOERR_INVALID_RPI ||
lpfc_cmd->result == IOERR_LINK_DOWN ||
lpfc_cmd->result == IOERR_NO_RESOURCES ||
lpfc_cmd->result == IOERR_ABORT_REQUESTED ||
lpfc_cmd->result == IOERR_RPI_SUSPENDED ||
lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) {
cmd->result = DID_TRANSPORT_DISRUPTED << 16;
break;
}
lpfc_printf_vlog(vport, KERN_WARNING, logit,
"9036 Local Reject FCP cmd x%x failed"
" <%d/%lld> "
"status: x%x result: x%x "
"sid: x%x did: x%x oxid: x%x "
"Data: x%x x%x x%x\n",
cmd->cmnd[0],
cmd->device ? cmd->device->id : 0xffff,
cmd->device ? cmd->device->lun : 0xffff,
lpfc_cmd->status, lpfc_cmd->result,
vport->fc_myDID,
(ndlp) ? ndlp->nlp_DID : 0,
lpfc_cmd->cur_iocbq.sli4_xritag,
wcqe->parameter,
wcqe->total_data_placed,
lpfc_cmd->cur_iocbq.iocb.ulpIoTag);
fallthrough;
default:
cmd->result = DID_ERROR << 16;
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"9037 FCP Completion Error: xri %x "
"status x%x result x%x [x%x] "
"placed x%x\n",
lpfc_cmd->cur_iocbq.sli4_xritag,
lpfc_cmd->status, lpfc_cmd->result,
wcqe->parameter,
wcqe->total_data_placed);
}
if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) {
u32 *lp = (u32 *)cmd->sense_buffer;
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"9039 Iodone <%d/%llu> cmd x%px, error "
"x%x SNS x%x x%x LBA x%llx Data: x%x x%x\n",
cmd->device->id, cmd->device->lun, cmd,
cmd->result, *lp, *(lp + 3),
(cmd->device->sector_size) ?
(u64)scsi_get_lba(cmd) : 0,
cmd->retries, scsi_get_resid(cmd));
}
if (vport->cfg_max_scsicmpl_time &&
time_after(jiffies, lpfc_cmd->start_time +
msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) {
spin_lock_irqsave(shost->host_lock, flags);
if (ndlp) {
if (ndlp->cmd_qdepth >
atomic_read(&ndlp->cmd_pending) &&
(atomic_read(&ndlp->cmd_pending) >
LPFC_MIN_TGT_QDEPTH) &&
(cmd->cmnd[0] == READ_10 ||
cmd->cmnd[0] == WRITE_10))
ndlp->cmd_qdepth =
atomic_read(&ndlp->cmd_pending);
ndlp->last_change_time = jiffies;
}
spin_unlock_irqrestore(shost->host_lock, flags);
}
lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (lpfc_cmd->ts_cmd_start) {
lpfc_cmd->ts_isr_cmpl = lpfc_cmd->cur_iocbq.isr_timestamp;
lpfc_cmd->ts_data_io = ktime_get_ns();
phba->ktime_last_cmd = lpfc_cmd->ts_data_io;
lpfc_io_ktime(phba, lpfc_cmd);
}
#endif
if (likely(!wait_xb_clr))
lpfc_cmd->pCmd = NULL;
spin_unlock(&lpfc_cmd->buf_lock);
/* Check if IO qualified for CMF */
if (phba->cmf_active_mode != LPFC_CFG_OFF &&
cmd->sc_data_direction == DMA_FROM_DEVICE &&
(scsi_sg_count(cmd))) {
/* Used when calculating average latency */
lat = ktime_get_ns() - lpfc_cmd->rx_cmd_start;
lpfc_update_cmf_cmpl(phba, lat, scsi_bufflen(cmd), shost);
}
if (wait_xb_clr)
goto out;
/* The sdev is not guaranteed to be valid post scsi_done upcall. */
scsi_done(cmd);
/*
* If there is an abort thread waiting for command completion
* wake up the thread.
*/
spin_lock(&lpfc_cmd->buf_lock);
lpfc_cmd->cur_iocbq.cmd_flag &= ~LPFC_DRIVER_ABORTED;
if (lpfc_cmd->waitq)
wake_up(lpfc_cmd->waitq);
spin_unlock(&lpfc_cmd->buf_lock);
out:
lpfc_release_scsi_buf(phba, lpfc_cmd);
}
/**
* lpfc_scsi_cmd_iocb_cmpl - Scsi cmnd IOCB completion routine
* @phba: The Hba for which this call is being executed.
* @pIocbIn: The command IOCBQ for the scsi cmnd.
* @pIocbOut: The response IOCBQ for the scsi cmnd.
*
* This routine assigns scsi command result by looking into response IOCB
* status field appropriately. This routine handles QUEUE FULL condition as
* well by ramping down device queue depth.
**/
static void
lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
struct lpfc_iocbq *pIocbOut)
{
struct lpfc_io_buf *lpfc_cmd =
(struct lpfc_io_buf *) pIocbIn->io_buf;
struct lpfc_vport *vport = pIocbIn->vport;
struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
struct lpfc_nodelist *pnode = rdata->pnode;
struct scsi_cmnd *cmd;
unsigned long flags;
struct lpfc_fast_path_event *fast_path_evt;
struct Scsi_Host *shost;
int idx;
uint32_t logit = LOG_FCP;
/* Guard against abort handler being called at same time */
spin_lock(&lpfc_cmd->buf_lock);
/* Sanity check on return of outstanding command */
cmd = lpfc_cmd->pCmd;
if (!cmd || !phba) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2621 IO completion: Not an active IO\n");
spin_unlock(&lpfc_cmd->buf_lock);
return;
}
idx = lpfc_cmd->cur_iocbq.hba_wqidx;
if (phba->sli4_hba.hdwq)
phba->sli4_hba.hdwq[idx].scsi_cstat.io_cmpls++;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO))
this_cpu_inc(phba->sli4_hba.c_stat->cmpl_io);
#endif
shost = cmd->device->host;
lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK);
lpfc_cmd->status = pIocbOut->iocb.ulpStatus;
/* pick up SLI4 exchange busy status from HBA */
lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
if (pIocbOut->cmd_flag & LPFC_EXCHANGE_BUSY)
lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (lpfc_cmd->prot_data_type) {
struct scsi_dif_tuple *src = NULL;
src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment;
/*
* Used to restore any changes to protection
* data for error injection.
*/
switch (lpfc_cmd->prot_data_type) {
case LPFC_INJERR_REFTAG:
src->ref_tag =
lpfc_cmd->prot_data;
break;
case LPFC_INJERR_APPTAG:
src->app_tag =
(uint16_t)lpfc_cmd->prot_data;
break;
case LPFC_INJERR_GUARD:
src->guard_tag =
(uint16_t)lpfc_cmd->prot_data;
break;
default:
break;
}
lpfc_cmd->prot_data = 0;
lpfc_cmd->prot_data_type = 0;
lpfc_cmd->prot_data_segment = NULL;
}
#endif
if (unlikely(lpfc_cmd->status)) {
if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT &&
(lpfc_cmd->result & IOERR_DRVR_MASK))
lpfc_cmd->status = IOSTAT_DRIVER_REJECT;
else if (lpfc_cmd->status >= IOSTAT_CNT)
lpfc_cmd->status = IOSTAT_DEFAULT;
if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR &&
!lpfc_cmd->fcp_rsp->rspStatus3 &&
(lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) &&
!(vport->cfg_log_verbose & LOG_FCP_UNDER))
logit = 0;
else
logit = LOG_FCP | LOG_FCP_UNDER;
lpfc_printf_vlog(vport, KERN_WARNING, logit,
"9030 FCP cmd x%x failed <%d/%lld> "
"status: x%x result: x%x "
"sid: x%x did: x%x oxid: x%x "
"Data: x%x x%x\n",
cmd->cmnd[0],
cmd->device ? cmd->device->id : 0xffff,
cmd->device ? cmd->device->lun : 0xffff,
lpfc_cmd->status, lpfc_cmd->result,
vport->fc_myDID,
(pnode) ? pnode->nlp_DID : 0,
phba->sli_rev == LPFC_SLI_REV4 ?
lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff,
pIocbOut->iocb.ulpContext,
lpfc_cmd->cur_iocbq.iocb.ulpIoTag);
switch (lpfc_cmd->status) {
case IOSTAT_FCP_RSP_ERROR:
/* Call FCP RSP handler to determine result */
lpfc_handle_fcp_err(vport, lpfc_cmd,
pIocbOut->iocb.un.fcpi.fcpi_parm);
break;
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
cmd->result = DID_TRANSPORT_DISRUPTED << 16;
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
break;
fast_path_evt->un.fabric_evt.event_type =
FC_REG_FABRIC_EVENT;
fast_path_evt->un.fabric_evt.subcategory =
(lpfc_cmd->status == IOSTAT_NPORT_BSY) ?
LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY;
if (pnode) {
memcpy(&fast_path_evt->un.fabric_evt.wwpn,
&pnode->nlp_portname,
sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.fabric_evt.wwnn,
&pnode->nlp_nodename,
sizeof(struct lpfc_name));
}
fast_path_evt->vport = vport;
fast_path_evt->work_evt.evt =
LPFC_EVT_FASTPATH_MGMT_EVT;
spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&fast_path_evt->work_evt.evt_listp,
&phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_worker_wake_up(phba);
break;
case IOSTAT_LOCAL_REJECT:
case IOSTAT_REMOTE_STOP:
if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR ||
lpfc_cmd->result ==
IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR ||
lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR ||
lpfc_cmd->result ==
IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) {
cmd->result = DID_NO_CONNECT << 16;
break;
}
if (lpfc_cmd->result == IOERR_INVALID_RPI ||
lpfc_cmd->result == IOERR_NO_RESOURCES ||
lpfc_cmd->result == IOERR_ABORT_REQUESTED ||
lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) {
cmd->result = DID_TRANSPORT_DISRUPTED << 16;
break;
}
if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED ||
lpfc_cmd->result == IOERR_TX_DMA_FAILED) &&
pIocbOut->iocb.unsli3.sli3_bg.bgstat) {
if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
/*
* This is a response for a BG enabled
* cmd. Parse BG error
*/
lpfc_parse_bg_err(phba, lpfc_cmd,
pIocbOut);
break;
} else {
lpfc_printf_vlog(vport, KERN_WARNING,
LOG_BG,
"9031 non-zero BGSTAT "
"on unprotected cmd\n");
}
}
if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP)
&& (phba->sli_rev == LPFC_SLI_REV4)
&& pnode) {
/* This IO was aborted by the target, we don't
* know the rxid and because we did not send the
* ABTS we cannot generate and RRQ.
*/
lpfc_set_rrq_active(phba, pnode,
lpfc_cmd->cur_iocbq.sli4_lxritag,
0, 0);
}
fallthrough;
default:
cmd->result = DID_ERROR << 16;
break;
}
if (!pnode || (pnode->nlp_state != NLP_STE_MAPPED_NODE))
cmd->result = DID_TRANSPORT_DISRUPTED << 16 |
SAM_STAT_BUSY;
} else
cmd->result = DID_OK << 16;
if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) {
uint32_t *lp = (uint32_t *)cmd->sense_buffer;
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0710 Iodone <%d/%llu> cmd x%px, error "
"x%x SNS x%x x%x Data: x%x x%x\n",
cmd->device->id, cmd->device->lun, cmd,
cmd->result, *lp, *(lp + 3), cmd->retries,
scsi_get_resid(cmd));
}
if (vport->cfg_max_scsicmpl_time &&
time_after(jiffies, lpfc_cmd->start_time +
msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) {
spin_lock_irqsave(shost->host_lock, flags);
if (pnode) {
if (pnode->cmd_qdepth >
atomic_read(&pnode->cmd_pending) &&
(atomic_read(&pnode->cmd_pending) >
LPFC_MIN_TGT_QDEPTH) &&
((cmd->cmnd[0] == READ_10) ||
(cmd->cmnd[0] == WRITE_10)))
pnode->cmd_qdepth =
atomic_read(&pnode->cmd_pending);
pnode->last_change_time = jiffies;
}
spin_unlock_irqrestore(shost->host_lock, flags);
}
lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd);
lpfc_cmd->pCmd = NULL;
spin_unlock(&lpfc_cmd->buf_lock);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (lpfc_cmd->ts_cmd_start) {
lpfc_cmd->ts_isr_cmpl = pIocbIn->isr_timestamp;
lpfc_cmd->ts_data_io = ktime_get_ns();
phba->ktime_last_cmd = lpfc_cmd->ts_data_io;
lpfc_io_ktime(phba, lpfc_cmd);
}
#endif
/* The sdev is not guaranteed to be valid post scsi_done upcall. */
scsi_done(cmd);
/*
* If there is an abort thread waiting for command completion
* wake up the thread.
*/
spin_lock(&lpfc_cmd->buf_lock);
lpfc_cmd->cur_iocbq.cmd_flag &= ~LPFC_DRIVER_ABORTED;
if (lpfc_cmd->waitq)
wake_up(lpfc_cmd->waitq);
spin_unlock(&lpfc_cmd->buf_lock);
lpfc_release_scsi_buf(phba, lpfc_cmd);
}
/**
* lpfc_scsi_prep_cmnd_buf_s3 - SLI-3 IOCB init for the IO
* @vport: Pointer to vport object.
* @lpfc_cmd: The scsi buffer which is going to be prep'ed.
* @tmo: timeout value for the IO
*
* Based on the data-direction of the command, initialize IOCB
* in the I/O buffer. Fill in the IOCB fields which are independent
* of the scsi buffer
*
* RETURNS 0 - SUCCESS,
**/
static int lpfc_scsi_prep_cmnd_buf_s3(struct lpfc_vport *vport,
struct lpfc_io_buf *lpfc_cmd,
uint8_t tmo)
{
IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
struct lpfc_iocbq *piocbq = &lpfc_cmd->cur_iocbq;
struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
struct lpfc_nodelist *pnode = lpfc_cmd->ndlp;
int datadir = scsi_cmnd->sc_data_direction;
u32 fcpdl;
piocbq->iocb.un.fcpi.fcpi_XRdy = 0;
/*
* There are three possibilities here - use scatter-gather segment, use
* the single mapping, or neither. Start the lpfc command prep by
* bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first
* data bde entry.
*/
if (scsi_sg_count(scsi_cmnd)) {
if (datadir == DMA_TO_DEVICE) {
iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR;
iocb_cmd->ulpPU = PARM_READ_CHECK;
if (vport->cfg_first_burst_size &&
(pnode->nlp_flag & NLP_FIRSTBURST)) {
u32 xrdy_len;
fcpdl = scsi_bufflen(scsi_cmnd);
xrdy_len = min(fcpdl,
vport->cfg_first_burst_size);
piocbq->iocb.un.fcpi.fcpi_XRdy = xrdy_len;
}
fcp_cmnd->fcpCntl3 = WRITE_DATA;
} else {
iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR;
iocb_cmd->ulpPU = PARM_READ_CHECK;
fcp_cmnd->fcpCntl3 = READ_DATA;
}
} else {
iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR;
iocb_cmd->un.fcpi.fcpi_parm = 0;
iocb_cmd->ulpPU = 0;
fcp_cmnd->fcpCntl3 = 0;
}
/*
* Finish initializing those IOCB fields that are independent
* of the scsi_cmnd request_buffer
*/
piocbq->iocb.ulpContext = pnode->nlp_rpi;
if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE)
piocbq->iocb.ulpFCP2Rcvy = 1;
else
piocbq->iocb.ulpFCP2Rcvy = 0;
piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f);
piocbq->io_buf = lpfc_cmd;
if (!piocbq->cmd_cmpl)
piocbq->cmd_cmpl = lpfc_scsi_cmd_iocb_cmpl;
piocbq->iocb.ulpTimeout = tmo;
piocbq->vport = vport;
return 0;
}
/**
* lpfc_scsi_prep_cmnd_buf_s4 - SLI-4 WQE init for the IO
* @vport: Pointer to vport object.
* @lpfc_cmd: The scsi buffer which is going to be prep'ed.
* @tmo: timeout value for the IO
*
* Based on the data-direction of the command copy WQE template
* to I/O buffer WQE. Fill in the WQE fields which are independent
* of the scsi buffer
*
* RETURNS 0 - SUCCESS,
**/
static int lpfc_scsi_prep_cmnd_buf_s4(struct lpfc_vport *vport,
struct lpfc_io_buf *lpfc_cmd,
uint8_t tmo)
{
struct lpfc_hba *phba = vport->phba;
struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
struct lpfc_sli4_hdw_queue *hdwq = NULL;
struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq;
struct lpfc_nodelist *pnode = lpfc_cmd->ndlp;
union lpfc_wqe128 *wqe = &pwqeq->wqe;
u16 idx = lpfc_cmd->hdwq_no;
int datadir = scsi_cmnd->sc_data_direction;
hdwq = &phba->sli4_hba.hdwq[idx];
/* Initialize 64 bytes only */
memset(wqe, 0, sizeof(union lpfc_wqe128));
/*
* There are three possibilities here - use scatter-gather segment, use
* the single mapping, or neither.
*/
if (scsi_sg_count(scsi_cmnd)) {
if (datadir == DMA_TO_DEVICE) {
/* From the iwrite template, initialize words 7 - 11 */
memcpy(&wqe->words[7],
&lpfc_iwrite_cmd_template.words[7],
sizeof(uint32_t) * 5);
fcp_cmnd->fcpCntl3 = WRITE_DATA;
if (hdwq)
hdwq->scsi_cstat.output_requests++;
} else {
/* From the iread template, initialize words 7 - 11 */
memcpy(&wqe->words[7],
&lpfc_iread_cmd_template.words[7],
sizeof(uint32_t) * 5);
/* Word 7 */
bf_set(wqe_tmo, &wqe->fcp_iread.wqe_com, tmo);
fcp_cmnd->fcpCntl3 = READ_DATA;
if (hdwq)
hdwq->scsi_cstat.input_requests++;
/* For a CMF Managed port, iod must be zero'ed */
if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
bf_set(wqe_iod, &wqe->fcp_iread.wqe_com,
LPFC_WQE_IOD_NONE);
}
} else {
/* From the icmnd template, initialize words 4 - 11 */
memcpy(&wqe->words[4], &lpfc_icmnd_cmd_template.words[4],
sizeof(uint32_t) * 8);
/* Word 7 */
bf_set(wqe_tmo, &wqe->fcp_icmd.wqe_com, tmo);
fcp_cmnd->fcpCntl3 = 0;
if (hdwq)
hdwq->scsi_cstat.control_requests++;
}
/*
* Finish initializing those WQE fields that are independent
* of the request_buffer
*/
/* Word 3 */
bf_set(payload_offset_len, &wqe->fcp_icmd,
sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp));
/* Word 6 */
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com,
phba->sli4_hba.rpi_ids[pnode->nlp_rpi]);
bf_set(wqe_xri_tag, &wqe->generic.wqe_com, pwqeq->sli4_xritag);
/* Word 7*/
if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE)
bf_set(wqe_erp, &wqe->generic.wqe_com, 1);
bf_set(wqe_class, &wqe->generic.wqe_com,
(pnode->nlp_fcp_info & 0x0f));
/* Word 8 */
wqe->generic.wqe_com.abort_tag = pwqeq->iotag;
/* Word 9 */
bf_set(wqe_reqtag, &wqe->generic.wqe_com, pwqeq->iotag);
pwqeq->vport = vport;
pwqeq->io_buf = lpfc_cmd;
pwqeq->hba_wqidx = lpfc_cmd->hdwq_no;
pwqeq->cmd_cmpl = lpfc_fcp_io_cmd_wqe_cmpl;
return 0;
}
/**
* lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit
* @vport: The virtual port for which this call is being executed.
* @lpfc_cmd: The scsi command which needs to send.
* @pnode: Pointer to lpfc_nodelist.
*
* This routine initializes fcp_cmnd and iocb data structure from scsi command
* to transfer for device with SLI3 interface spec.
**/
static int
lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd,
struct lpfc_nodelist *pnode)
{
struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
u8 *ptr;
if (!pnode)
return 0;
lpfc_cmd->fcp_rsp->rspSnsLen = 0;
/* clear task management bits */
lpfc_cmd->fcp_cmnd->fcpCntl2 = 0;
int_to_scsilun(lpfc_cmd->pCmd->device->lun,
&lpfc_cmd->fcp_cmnd->fcp_lun);
ptr = &fcp_cmnd->fcpCdb[0];
memcpy(ptr, scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
if (scsi_cmnd->cmd_len < LPFC_FCP_CDB_LEN) {
ptr += scsi_cmnd->cmd_len;
memset(ptr, 0, (LPFC_FCP_CDB_LEN - scsi_cmnd->cmd_len));
}
fcp_cmnd->fcpCntl1 = SIMPLE_Q;
lpfc_scsi_prep_cmnd_buf(vport, lpfc_cmd, lpfc_cmd->timeout);
return 0;
}
/**
* lpfc_scsi_prep_task_mgmt_cmd_s3 - Convert SLI3 scsi TM cmd to FCP info unit
* @vport: The virtual port for which this call is being executed.
* @lpfc_cmd: Pointer to lpfc_io_buf data structure.
* @lun: Logical unit number.
* @task_mgmt_cmd: SCSI task management command.
*
* This routine creates FCP information unit corresponding to @task_mgmt_cmd
* for device with SLI-3 interface spec.
*
* Return codes:
* 0 - Error
* 1 - Success
**/
static int
lpfc_scsi_prep_task_mgmt_cmd_s3(struct lpfc_vport *vport,
struct lpfc_io_buf *lpfc_cmd,
u64 lun, u8 task_mgmt_cmd)
{
struct lpfc_iocbq *piocbq;
IOCB_t *piocb;
struct fcp_cmnd *fcp_cmnd;
struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
struct lpfc_nodelist *ndlp = rdata->pnode;
if (!ndlp || ndlp->nlp_state != NLP_STE_MAPPED_NODE)
return 0;
piocbq = &(lpfc_cmd->cur_iocbq);
piocbq->vport = vport;
piocb = &piocbq->iocb;
fcp_cmnd = lpfc_cmd->fcp_cmnd;
/* Clear out any old data in the FCP command area */
memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd));
int_to_scsilun(lun, &fcp_cmnd->fcp_lun);
fcp_cmnd->fcpCntl2 = task_mgmt_cmd;
if (!(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED))
lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd);
piocb->ulpCommand = CMD_FCP_ICMND64_CR;
piocb->ulpContext = ndlp->nlp_rpi;
piocb->ulpFCP2Rcvy = (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0;
piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f);
piocb->ulpPU = 0;
piocb->un.fcpi.fcpi_parm = 0;
/* ulpTimeout is only one byte */
if (lpfc_cmd->timeout > 0xff) {
/*
* Do not timeout the command at the firmware level.
* The driver will provide the timeout mechanism.
*/
piocb->ulpTimeout = 0;
} else
piocb->ulpTimeout = lpfc_cmd->timeout;
return 1;
}
/**
* lpfc_scsi_prep_task_mgmt_cmd_s4 - Convert SLI4 scsi TM cmd to FCP info unit
* @vport: The virtual port for which this call is being executed.
* @lpfc_cmd: Pointer to lpfc_io_buf data structure.
* @lun: Logical unit number.
* @task_mgmt_cmd: SCSI task management command.
*
* This routine creates FCP information unit corresponding to @task_mgmt_cmd
* for device with SLI-4 interface spec.
*
* Return codes:
* 0 - Error
* 1 - Success
**/
static int
lpfc_scsi_prep_task_mgmt_cmd_s4(struct lpfc_vport *vport,
struct lpfc_io_buf *lpfc_cmd,
u64 lun, u8 task_mgmt_cmd)
{
struct lpfc_iocbq *pwqeq = &lpfc_cmd->cur_iocbq;
union lpfc_wqe128 *wqe = &pwqeq->wqe;
struct fcp_cmnd *fcp_cmnd;
struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
struct lpfc_nodelist *ndlp = rdata->pnode;
if (!ndlp || ndlp->nlp_state != NLP_STE_MAPPED_NODE)
return 0;
pwqeq->vport = vport;
/* Initialize 64 bytes only */
memset(wqe, 0, sizeof(union lpfc_wqe128));
/* From the icmnd template, initialize words 4 - 11 */
memcpy(&wqe->words[4], &lpfc_icmnd_cmd_template.words[4],
sizeof(uint32_t) * 8);
fcp_cmnd = lpfc_cmd->fcp_cmnd;
/* Clear out any old data in the FCP command area */
memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd));
int_to_scsilun(lun, &fcp_cmnd->fcp_lun);
fcp_cmnd->fcpCntl3 = 0;
fcp_cmnd->fcpCntl2 = task_mgmt_cmd;
bf_set(payload_offset_len, &wqe->fcp_icmd,
sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp));
bf_set(cmd_buff_len, &wqe->fcp_icmd, 0);
bf_set(wqe_ctxt_tag, &wqe->generic.wqe_com, /* ulpContext */
vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0));
bf_set(wqe_class, &wqe->fcp_icmd.wqe_com,
(ndlp->nlp_fcp_info & 0x0f));
/* ulpTimeout is only one byte */
if (lpfc_cmd->timeout > 0xff) {
/*
* Do not timeout the command at the firmware level.
* The driver will provide the timeout mechanism.
*/
bf_set(wqe_tmo, &wqe->fcp_icmd.wqe_com, 0);
} else {
bf_set(wqe_tmo, &wqe->fcp_icmd.wqe_com, lpfc_cmd->timeout);
}
lpfc_prep_embed_io(vport->phba, lpfc_cmd);
bf_set(wqe_xri_tag, &wqe->generic.wqe_com, pwqeq->sli4_xritag);
wqe->generic.wqe_com.abort_tag = pwqeq->iotag;
bf_set(wqe_reqtag, &wqe->generic.wqe_com, pwqeq->iotag);
lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd);
return 1;
}
/**
* lpfc_scsi_api_table_setup - Set up scsi api function jump table
* @phba: The hba struct for which this call is being executed.
* @dev_grp: The HBA PCI-Device group number.
*
* This routine sets up the SCSI interface API function jump table in @phba
* struct.
* Returns: 0 - success, -ENODEV - failure.
**/
int
lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
{
phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf;
switch (dev_grp) {
case LPFC_PCI_DEV_LP:
phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3;
phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s3;
phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3;
phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s3;
phba->lpfc_scsi_prep_cmnd_buf = lpfc_scsi_prep_cmnd_buf_s3;
phba->lpfc_scsi_prep_task_mgmt_cmd =
lpfc_scsi_prep_task_mgmt_cmd_s3;
break;
case LPFC_PCI_DEV_OC:
phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4;
phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s4;
phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4;
phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s4;
phba->lpfc_scsi_prep_cmnd_buf = lpfc_scsi_prep_cmnd_buf_s4;
phba->lpfc_scsi_prep_task_mgmt_cmd =
lpfc_scsi_prep_task_mgmt_cmd_s4;
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1418 Invalid HBA PCI-device group: 0x%x\n",
dev_grp);
return -ENODEV;
}
phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth;
return 0;
}
/**
* lpfc_tskmgmt_def_cmpl - IOCB completion routine for task management command
* @phba: The Hba for which this call is being executed.
* @cmdiocbq: Pointer to lpfc_iocbq data structure.
* @rspiocbq: Pointer to lpfc_iocbq data structure.
*
* This routine is IOCB completion routine for device reset and target reset
* routine. This routine release scsi buffer associated with lpfc_cmd.
**/
static void
lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbq,
struct lpfc_iocbq *rspiocbq)
{
struct lpfc_io_buf *lpfc_cmd = cmdiocbq->io_buf;
if (lpfc_cmd)
lpfc_release_scsi_buf(phba, lpfc_cmd);
return;
}
/**
* lpfc_check_pci_resettable - Walks list of devices on pci_dev's bus to check
* if issuing a pci_bus_reset is possibly unsafe
* @phba: lpfc_hba pointer.
*
* Description:
* Walks the bus_list to ensure only PCI devices with Emulex
* vendor id, device ids that support hot reset, and only one occurrence
* of function 0.
*
* Returns:
* -EBADSLT, detected invalid device
* 0, successful
*/
int
lpfc_check_pci_resettable(struct lpfc_hba *phba)
{
const struct pci_dev *pdev = phba->pcidev;
struct pci_dev *ptr = NULL;
u8 counter = 0;
/* Walk the list of devices on the pci_dev's bus */
list_for_each_entry(ptr, &pdev->bus->devices, bus_list) {
/* Check for Emulex Vendor ID */
if (ptr->vendor != PCI_VENDOR_ID_EMULEX) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"8346 Non-Emulex vendor found: "
"0x%04x\n", ptr->vendor);
return -EBADSLT;
}
/* Check for valid Emulex Device ID */
if (phba->sli_rev != LPFC_SLI_REV4 ||
phba->hba_flag & HBA_FCOE_MODE) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"8347 Incapable PCI reset device: "
"0x%04x\n", ptr->device);
return -EBADSLT;
}
/* Check for only one function 0 ID to ensure only one HBA on
* secondary bus
*/
if (ptr->devfn == 0) {
if (++counter > 1) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"8348 More than one device on "
"secondary bus found\n");
return -EBADSLT;
}
}
}
return 0;
}
/**
* lpfc_info - Info entry point of scsi_host_template data structure
* @host: The scsi host for which this call is being executed.
*
* This routine provides module information about hba.
*
* Reutrn code:
* Pointer to char - Success.
**/
const char *
lpfc_info(struct Scsi_Host *host)
{
struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata;
struct lpfc_hba *phba = vport->phba;
int link_speed = 0;
static char lpfcinfobuf[384];
char tmp[384] = {0};
memset(lpfcinfobuf, 0, sizeof(lpfcinfobuf));
if (phba && phba->pcidev){
/* Model Description */
scnprintf(tmp, sizeof(tmp), phba->ModelDesc);
if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
sizeof(lpfcinfobuf))
goto buffer_done;
/* PCI Info */
scnprintf(tmp, sizeof(tmp),
" on PCI bus %02x device %02x irq %d",
phba->pcidev->bus->number, phba->pcidev->devfn,
phba->pcidev->irq);
if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
sizeof(lpfcinfobuf))
goto buffer_done;
/* Port Number */
if (phba->Port[0]) {
scnprintf(tmp, sizeof(tmp), " port %s", phba->Port);
if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
sizeof(lpfcinfobuf))
goto buffer_done;
}
/* Link Speed */
link_speed = lpfc_sli_port_speed_get(phba);
if (link_speed != 0) {
scnprintf(tmp, sizeof(tmp),
" Logical Link Speed: %d Mbps", link_speed);
if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
sizeof(lpfcinfobuf))
goto buffer_done;
}
/* PCI resettable */
if (!lpfc_check_pci_resettable(phba)) {
scnprintf(tmp, sizeof(tmp), " PCI resettable");
strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf));
}
}
buffer_done:
return lpfcinfobuf;
}
/**
* lpfc_poll_rearm_timer - Routine to modify fcp_poll timer of hba
* @phba: The Hba for which this call is being executed.
*
* This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo.
* The default value of cfg_poll_tmo is 10 milliseconds.
**/
static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba)
{
unsigned long poll_tmo_expires =
(jiffies + msecs_to_jiffies(phba->cfg_poll_tmo));
if (!list_empty(&phba->sli.sli3_ring[LPFC_FCP_RING].txcmplq))
mod_timer(&phba->fcp_poll_timer,
poll_tmo_expires);
}
/**
* lpfc_poll_start_timer - Routine to start fcp_poll_timer of HBA
* @phba: The Hba for which this call is being executed.
*
* This routine starts the fcp_poll_timer of @phba.
**/
void lpfc_poll_start_timer(struct lpfc_hba * phba)
{
lpfc_poll_rearm_timer(phba);
}
/**
* lpfc_poll_timeout - Restart polling timer
* @t: Timer construct where lpfc_hba data structure pointer is obtained.
*
* This routine restarts fcp_poll timer, when FCP ring polling is enable
* and FCP Ring interrupt is disable.
**/
void lpfc_poll_timeout(struct timer_list *t)
{
struct lpfc_hba *phba = from_timer(phba, t, fcp_poll_timer);
if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ);
if (phba->cfg_poll & DISABLE_FCP_RING_INT)
lpfc_poll_rearm_timer(phba);
}
}
/*
* lpfc_is_command_vm_io - get the UUID from blk cgroup
* @cmd: Pointer to scsi_cmnd data structure
* Returns UUID if present, otherwise NULL
*/
static char *lpfc_is_command_vm_io(struct scsi_cmnd *cmd)
{
struct bio *bio = scsi_cmd_to_rq(cmd)->bio;
if (!IS_ENABLED(CONFIG_BLK_CGROUP_FC_APPID) || !bio)
return NULL;
return blkcg_get_fc_appid(bio);
}
/**
* lpfc_queuecommand - scsi_host_template queuecommand entry point
* @shost: kernel scsi host pointer.
* @cmnd: Pointer to scsi_cmnd data structure.
*
* Driver registers this routine to scsi midlayer to submit a @cmd to process.
* This routine prepares an IOCB from scsi command and provides to firmware.
* The @done callback is invoked after driver finished processing the command.
*
* Return value :
* 0 - Success
* SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily.
**/
static int
lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cur_iocbq = NULL;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *ndlp;
struct lpfc_io_buf *lpfc_cmd;
struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
int err, idx;
u8 *uuid = NULL;
uint64_t start;
start = ktime_get_ns();
rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
/* sanity check on references */
if (unlikely(!rdata) || unlikely(!rport))
goto out_fail_command;
err = fc_remote_port_chkready(rport);
if (err) {
cmnd->result = err;
goto out_fail_command;
}
ndlp = rdata->pnode;
if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) &&
(!(phba->sli3_options & LPFC_SLI3_BG_ENABLED))) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"9058 BLKGRD: ERROR: rcvd protected cmd:%02x"
" op:%02x str=%s without registering for"
" BlockGuard - Rejecting command\n",
cmnd->cmnd[0], scsi_get_prot_op(cmnd),
dif_op_str[scsi_get_prot_op(cmnd)]);
goto out_fail_command;
}
/*
* Catch race where our node has transitioned, but the
* transport is still transitioning.
*/
if (!ndlp)
goto out_tgt_busy1;
/* Check if IO qualifies for CMF */
if (phba->cmf_active_mode != LPFC_CFG_OFF &&
cmnd->sc_data_direction == DMA_FROM_DEVICE &&
(scsi_sg_count(cmnd))) {
/* Latency start time saved in rx_cmd_start later in routine */
err = lpfc_update_cmf_cmd(phba, scsi_bufflen(cmnd));
if (err)
goto out_tgt_busy1;
}
if (lpfc_ndlp_check_qdepth(phba, ndlp)) {
if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR,
"3377 Target Queue Full, scsi Id:%d "
"Qdepth:%d Pending command:%d"
" WWNN:%02x:%02x:%02x:%02x:"
"%02x:%02x:%02x:%02x, "
" WWPN:%02x:%02x:%02x:%02x:"
"%02x:%02x:%02x:%02x",
ndlp->nlp_sid, ndlp->cmd_qdepth,
atomic_read(&ndlp->cmd_pending),
ndlp->nlp_nodename.u.wwn[0],
ndlp->nlp_nodename.u.wwn[1],
ndlp->nlp_nodename.u.wwn[2],
ndlp->nlp_nodename.u.wwn[3],
ndlp->nlp_nodename.u.wwn[4],
ndlp->nlp_nodename.u.wwn[5],
ndlp->nlp_nodename.u.wwn[6],
ndlp->nlp_nodename.u.wwn[7],
ndlp->nlp_portname.u.wwn[0],
ndlp->nlp_portname.u.wwn[1],
ndlp->nlp_portname.u.wwn[2],
ndlp->nlp_portname.u.wwn[3],
ndlp->nlp_portname.u.wwn[4],
ndlp->nlp_portname.u.wwn[5],
ndlp->nlp_portname.u.wwn[6],
ndlp->nlp_portname.u.wwn[7]);
goto out_tgt_busy2;
}
}
lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp, cmnd);
if (lpfc_cmd == NULL) {
lpfc_rampdown_queue_depth(phba);
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_ERROR,
"0707 driver's buffer pool is empty, "
"IO busied\n");
goto out_host_busy;
}
lpfc_cmd->rx_cmd_start = start;
cur_iocbq = &lpfc_cmd->cur_iocbq;
/*
* Store the midlayer's command structure for the completion phase
* and complete the command initialization.
*/
lpfc_cmd->pCmd = cmnd;
lpfc_cmd->rdata = rdata;
lpfc_cmd->ndlp = ndlp;
cur_iocbq->cmd_cmpl = NULL;
cmnd->host_scribble = (unsigned char *)lpfc_cmd;
err = lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp);
if (err)
goto out_host_busy_release_buf;
if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) {
if (vport->phba->cfg_enable_bg) {
lpfc_printf_vlog(vport,
KERN_INFO, LOG_SCSI_CMD,
"9033 BLKGRD: rcvd %s cmd:x%x "
"reftag x%x cnt %u pt %x\n",
dif_op_str[scsi_get_prot_op(cmnd)],
cmnd->cmnd[0],
scsi_prot_ref_tag(cmnd),
scsi_logical_block_count(cmnd),
(cmnd->cmnd[1]>>5));
}
err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd);
} else {
if (vport->phba->cfg_enable_bg) {
lpfc_printf_vlog(vport,
KERN_INFO, LOG_SCSI_CMD,
"9038 BLKGRD: rcvd PROT_NORMAL cmd: "
"x%x reftag x%x cnt %u pt %x\n",
cmnd->cmnd[0],
scsi_prot_ref_tag(cmnd),
scsi_logical_block_count(cmnd),
(cmnd->cmnd[1]>>5));
}
err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd);
}
if (unlikely(err)) {
if (err == 2) {
cmnd->result = DID_ERROR << 16;
goto out_fail_command_release_buf;
}
goto out_host_busy_free_buf;
}
/* check the necessary and sufficient condition to support VMID */
if (lpfc_is_vmid_enabled(phba) &&
(ndlp->vmid_support ||
phba->pport->vmid_priority_tagging ==
LPFC_VMID_PRIO_TAG_ALL_TARGETS)) {
/* is the I/O generated by a VM, get the associated virtual */
/* entity id */
uuid = lpfc_is_command_vm_io(cmnd);
if (uuid) {
err = lpfc_vmid_get_appid(vport, uuid,
cmnd->sc_data_direction,
(union lpfc_vmid_io_tag *)
&cur_iocbq->vmid_tag);
if (!err)
cur_iocbq->cmd_flag |= LPFC_IO_VMID;
}
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (unlikely(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO))
this_cpu_inc(phba->sli4_hba.c_stat->xmt_io);
#endif
/* Issue I/O to adapter */
err = lpfc_sli_issue_fcp_io(phba, LPFC_FCP_RING, cur_iocbq,
SLI_IOCB_RET_IOCB);
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
if (start) {
lpfc_cmd->ts_cmd_start = start;
lpfc_cmd->ts_last_cmd = phba->ktime_last_cmd;
lpfc_cmd->ts_cmd_wqput = ktime_get_ns();
} else {
lpfc_cmd->ts_cmd_start = 0;
}
#endif
if (err) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"3376 FCP could not issue iocb err %x "
"FCP cmd x%x <%d/%llu> "
"sid: x%x did: x%x oxid: x%x "
"Data: x%x x%x x%x x%x\n",
err, cmnd->cmnd[0],
cmnd->device ? cmnd->device->id : 0xffff,
cmnd->device ? cmnd->device->lun : (u64)-1,
vport->fc_myDID, ndlp->nlp_DID,
phba->sli_rev == LPFC_SLI_REV4 ?
cur_iocbq->sli4_xritag : 0xffff,
phba->sli_rev == LPFC_SLI_REV4 ?
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi] :
cur_iocbq->iocb.ulpContext,
cur_iocbq->iotag,
phba->sli_rev == LPFC_SLI_REV4 ?
bf_get(wqe_tmo,
&cur_iocbq->wqe.generic.wqe_com) :
cur_iocbq->iocb.ulpTimeout,
(uint32_t)(scsi_cmd_to_rq(cmnd)->timeout / 1000));
goto out_host_busy_free_buf;
}
if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ);
if (phba->cfg_poll & DISABLE_FCP_RING_INT)
lpfc_poll_rearm_timer(phba);
}
if (phba->cfg_xri_rebalancing)
lpfc_keep_pvt_pool_above_lowwm(phba, lpfc_cmd->hdwq_no);
return 0;
out_host_busy_free_buf:
idx = lpfc_cmd->hdwq_no;
lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd);
if (phba->sli4_hba.hdwq) {
switch (lpfc_cmd->fcp_cmnd->fcpCntl3) {
case WRITE_DATA:
phba->sli4_hba.hdwq[idx].scsi_cstat.output_requests--;
break;
case READ_DATA:
phba->sli4_hba.hdwq[idx].scsi_cstat.input_requests--;
break;
default:
phba->sli4_hba.hdwq[idx].scsi_cstat.control_requests--;
}
}
out_host_busy_release_buf:
lpfc_release_scsi_buf(phba, lpfc_cmd);
out_host_busy:
lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd),
shost);
return SCSI_MLQUEUE_HOST_BUSY;
out_tgt_busy2:
lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd),
shost);
out_tgt_busy1:
return SCSI_MLQUEUE_TARGET_BUSY;
out_fail_command_release_buf:
lpfc_release_scsi_buf(phba, lpfc_cmd);
lpfc_update_cmf_cmpl(phba, LPFC_CGN_NOT_SENT, scsi_bufflen(cmnd),
shost);
out_fail_command:
scsi_done(cmnd);
return 0;
}
/*
* lpfc_vmid_vport_cleanup - cleans up the resources associated with a vport
* @vport: The virtual port for which this call is being executed.
*/
void lpfc_vmid_vport_cleanup(struct lpfc_vport *vport)
{
u32 bucket;
struct lpfc_vmid *cur;
if (vport->port_type == LPFC_PHYSICAL_PORT)
del_timer_sync(&vport->phba->inactive_vmid_poll);
kfree(vport->qfpa_res);
kfree(vport->vmid_priority.vmid_range);
kfree(vport->vmid);
if (!hash_empty(vport->hash_table))
hash_for_each(vport->hash_table, bucket, cur, hnode)
hash_del(&cur->hnode);
vport->qfpa_res = NULL;
vport->vmid_priority.vmid_range = NULL;
vport->vmid = NULL;
vport->cur_vmid_cnt = 0;
}
/**
* lpfc_abort_handler - scsi_host_template eh_abort_handler entry point
* @cmnd: Pointer to scsi_cmnd data structure.
*
* This routine aborts @cmnd pending in base driver.
*
* Return code :
* 0x2003 - Error
* 0x2002 - Success
**/
static int
lpfc_abort_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *iocb;
struct lpfc_io_buf *lpfc_cmd;
int ret = SUCCESS, status = 0;
struct lpfc_sli_ring *pring_s4 = NULL;
struct lpfc_sli_ring *pring = NULL;
int ret_val;
unsigned long flags;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);
status = fc_block_rport(rport);
if (status != 0 && status != SUCCESS)
return status;
lpfc_cmd = (struct lpfc_io_buf *)cmnd->host_scribble;
if (!lpfc_cmd)
return ret;
/* Guard against IO completion being called at same time */
spin_lock_irqsave(&lpfc_cmd->buf_lock, flags);
spin_lock(&phba->hbalock);
/* driver queued commands are in process of being flushed */
if (phba->hba_flag & HBA_IOQ_FLUSH) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"3168 SCSI Layer abort requested I/O has been "
"flushed by LLD.\n");
ret = FAILED;
goto out_unlock_hba;
}
if (!lpfc_cmd->pCmd) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"2873 SCSI Layer I/O Abort Request IO CMPL Status "
"x%x ID %d LUN %llu\n",
SUCCESS, cmnd->device->id, cmnd->device->lun);
goto out_unlock_hba;
}
iocb = &lpfc_cmd->cur_iocbq;
if (phba->sli_rev == LPFC_SLI_REV4) {
pring_s4 = phba->sli4_hba.hdwq[iocb->hba_wqidx].io_wq->pring;
if (!pring_s4) {
ret = FAILED;
goto out_unlock_hba;
}
spin_lock(&pring_s4->ring_lock);
}
/* the command is in process of being cancelled */
if (!(iocb->cmd_flag & LPFC_IO_ON_TXCMPLQ)) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"3169 SCSI Layer abort requested I/O has been "
"cancelled by LLD.\n");
ret = FAILED;
goto out_unlock_ring;
}
/*
* If pCmd field of the corresponding lpfc_io_buf structure
* points to a different SCSI command, then the driver has
* already completed this command, but the midlayer did not
* see the completion before the eh fired. Just return SUCCESS.
*/
if (lpfc_cmd->pCmd != cmnd) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"3170 SCSI Layer abort requested I/O has been "
"completed by LLD.\n");
goto out_unlock_ring;
}
WARN_ON(iocb->io_buf != lpfc_cmd);
/* abort issued in recovery is still in progress */
if (iocb->cmd_flag & LPFC_DRIVER_ABORTED) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"3389 SCSI Layer I/O Abort Request is pending\n");
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring_s4->ring_lock);
spin_unlock(&phba->hbalock);
spin_unlock_irqrestore(&lpfc_cmd->buf_lock, flags);
goto wait_for_cmpl;
}
lpfc_cmd->waitq = &waitq;
if (phba->sli_rev == LPFC_SLI_REV4) {
spin_unlock(&pring_s4->ring_lock);
ret_val = lpfc_sli4_issue_abort_iotag(phba, iocb,
lpfc_sli_abort_fcp_cmpl);
} else {
pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocb,
lpfc_sli_abort_fcp_cmpl);
}
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
if (ret_val != IOCB_SUCCESS) {
/* Indicate the IO is not being aborted by the driver. */
lpfc_cmd->waitq = NULL;
ret = FAILED;
goto out_unlock_hba;
}
/* no longer need the lock after this point */
spin_unlock(&phba->hbalock);
spin_unlock_irqrestore(&lpfc_cmd->buf_lock, flags);
if (phba->cfg_poll & DISABLE_FCP_RING_INT)
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ);
wait_for_cmpl:
/*
* cmd_flag is set to LPFC_DRIVER_ABORTED before we wait
* for abort to complete.
*/
wait_event_timeout(waitq,
(lpfc_cmd->pCmd != cmnd),
msecs_to_jiffies(2*vport->cfg_devloss_tmo*1000));
spin_lock(&lpfc_cmd->buf_lock);
if (lpfc_cmd->pCmd == cmnd) {
ret = FAILED;
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0748 abort handler timed out waiting "
"for aborting I/O (xri:x%x) to complete: "
"ret %#x, ID %d, LUN %llu\n",
iocb->sli4_xritag, ret,
cmnd->device->id, cmnd->device->lun);
}
lpfc_cmd->waitq = NULL;
spin_unlock(&lpfc_cmd->buf_lock);
goto out;
out_unlock_ring:
if (phba->sli_rev == LPFC_SLI_REV4)
spin_unlock(&pring_s4->ring_lock);
out_unlock_hba:
spin_unlock(&phba->hbalock);
spin_unlock_irqrestore(&lpfc_cmd->buf_lock, flags);
out:
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"0749 SCSI Layer I/O Abort Request Status x%x ID %d "
"LUN %llu\n", ret, cmnd->device->id,
cmnd->device->lun);
return ret;
}
static char *
lpfc_taskmgmt_name(uint8_t task_mgmt_cmd)
{
switch (task_mgmt_cmd) {
case FCP_ABORT_TASK_SET:
return "ABORT_TASK_SET";
case FCP_CLEAR_TASK_SET:
return "FCP_CLEAR_TASK_SET";
case FCP_BUS_RESET:
return "FCP_BUS_RESET";
case FCP_LUN_RESET:
return "FCP_LUN_RESET";
case FCP_TARGET_RESET:
return "FCP_TARGET_RESET";
case FCP_CLEAR_ACA:
return "FCP_CLEAR_ACA";
case FCP_TERMINATE_TASK:
return "FCP_TERMINATE_TASK";
default:
return "unknown";
}
}
/**
* lpfc_check_fcp_rsp - check the returned fcp_rsp to see if task failed
* @vport: The virtual port for which this call is being executed.
* @lpfc_cmd: Pointer to lpfc_io_buf data structure.
*
* This routine checks the FCP RSP INFO to see if the tsk mgmt command succeded
*
* Return code :
* 0x2003 - Error
* 0x2002 - Success
**/
static int
lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd)
{
struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
uint32_t rsp_info;
uint32_t rsp_len;
uint8_t rsp_info_code;
int ret = FAILED;
if (fcprsp == NULL)
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0703 fcp_rsp is missing\n");
else {
rsp_info = fcprsp->rspStatus2;
rsp_len = be32_to_cpu(fcprsp->rspRspLen);
rsp_info_code = fcprsp->rspInfo3;
lpfc_printf_vlog(vport, KERN_INFO,
LOG_FCP,
"0706 fcp_rsp valid 0x%x,"
" rsp len=%d code 0x%x\n",
rsp_info,
rsp_len, rsp_info_code);
/* If FCP_RSP_LEN_VALID bit is one, then the FCP_RSP_LEN
* field specifies the number of valid bytes of FCP_RSP_INFO.
* The FCP_RSP_LEN field shall be set to 0x04 or 0x08
*/
if ((fcprsp->rspStatus2 & RSP_LEN_VALID) &&
((rsp_len == 8) || (rsp_len == 4))) {
switch (rsp_info_code) {
case RSP_NO_FAILURE:
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0715 Task Mgmt No Failure\n");
ret = SUCCESS;
break;
case RSP_TM_NOT_SUPPORTED: /* TM rejected */
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0716 Task Mgmt Target "
"reject\n");
break;
case RSP_TM_NOT_COMPLETED: /* TM failed */
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0717 Task Mgmt Target "
"failed TM\n");
break;
case RSP_TM_INVALID_LU: /* TM to invalid LU! */
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0718 Task Mgmt to invalid "
"LUN\n");
break;
}
}
}
return ret;
}
/**
* lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler
* @vport: The virtual port for which this call is being executed.
* @rport: Pointer to remote port
* @tgt_id: Target ID of remote device.
* @lun_id: Lun number for the TMF
* @task_mgmt_cmd: type of TMF to send
*
* This routine builds and sends a TMF (SCSI Task Mgmt Function) to
* a remote port.
*
* Return Code:
* 0x2003 - Error
* 0x2002 - Success.
**/
static int
lpfc_send_taskmgmt(struct lpfc_vport *vport, struct fc_rport *rport,
unsigned int tgt_id, uint64_t lun_id,
uint8_t task_mgmt_cmd)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_io_buf *lpfc_cmd;
struct lpfc_iocbq *iocbq;
struct lpfc_iocbq *iocbqrsp;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *pnode;
int ret;
int status;
rdata = rport->dd_data;
if (!rdata || !rdata->pnode)
return FAILED;
pnode = rdata->pnode;
lpfc_cmd = lpfc_get_scsi_buf(phba, rdata->pnode, NULL);
if (lpfc_cmd == NULL)
return FAILED;
lpfc_cmd->timeout = phba->cfg_task_mgmt_tmo;
lpfc_cmd->rdata = rdata;
lpfc_cmd->pCmd = NULL;
lpfc_cmd->ndlp = pnode;
status = phba->lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id,
task_mgmt_cmd);
if (!status) {
lpfc_release_scsi_buf(phba, lpfc_cmd);
return FAILED;
}
iocbq = &lpfc_cmd->cur_iocbq;
iocbqrsp = lpfc_sli_get_iocbq(phba);
if (iocbqrsp == NULL) {
lpfc_release_scsi_buf(phba, lpfc_cmd);
return FAILED;
}
iocbq->cmd_cmpl = lpfc_tskmgmt_def_cmpl;
iocbq->vport = vport;
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0702 Issue %s to TGT %d LUN %llu "
"rpi x%x nlp_flag x%x Data: x%x x%x\n",
lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id,
pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag,
iocbq->cmd_flag);
status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING,
iocbq, iocbqrsp, lpfc_cmd->timeout);
if ((status != IOCB_SUCCESS) ||
(get_job_ulpstatus(phba, iocbqrsp) != IOSTAT_SUCCESS)) {
if (status != IOCB_SUCCESS ||
get_job_ulpstatus(phba, iocbqrsp) != IOSTAT_FCP_RSP_ERROR)
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0727 TMF %s to TGT %d LUN %llu "
"failed (%d, %d) cmd_flag x%x\n",
lpfc_taskmgmt_name(task_mgmt_cmd),
tgt_id, lun_id,
get_job_ulpstatus(phba, iocbqrsp),
get_job_word4(phba, iocbqrsp),
iocbq->cmd_flag);
/* if ulpStatus != IOCB_SUCCESS, then status == IOCB_SUCCESS */
if (status == IOCB_SUCCESS) {
if (get_job_ulpstatus(phba, iocbqrsp) ==
IOSTAT_FCP_RSP_ERROR)
/* Something in the FCP_RSP was invalid.
* Check conditions */
ret = lpfc_check_fcp_rsp(vport, lpfc_cmd);
else
ret = FAILED;
} else if ((status == IOCB_TIMEDOUT) ||
(status == IOCB_ABORTED)) {
ret = TIMEOUT_ERROR;
} else {
ret = FAILED;
}
} else
ret = SUCCESS;
lpfc_sli_release_iocbq(phba, iocbqrsp);
if (status != IOCB_TIMEDOUT)
lpfc_release_scsi_buf(phba, lpfc_cmd);
return ret;
}
/**
* lpfc_chk_tgt_mapped -
* @vport: The virtual port to check on
* @rport: Pointer to fc_rport data structure.
*
* This routine delays until the scsi target (aka rport) for the
* command exists (is present and logged in) or we declare it non-existent.
*
* Return code :
* 0x2003 - Error
* 0x2002 - Success
**/
static int
lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct fc_rport *rport)
{
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *pnode = NULL;
unsigned long later;
rdata = rport->dd_data;
if (!rdata) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0797 Tgt Map rport failure: rdata x%px\n", rdata);
return FAILED;
}
pnode = rdata->pnode;
/*
* If target is not in a MAPPED state, delay until
* target is rediscovered or devloss timeout expires.
*/
later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies;
while (time_after(later, jiffies)) {
if (!pnode)
return FAILED;
if (pnode->nlp_state == NLP_STE_MAPPED_NODE)
return SUCCESS;
schedule_timeout_uninterruptible(msecs_to_jiffies(500));
rdata = rport->dd_data;
if (!rdata)
return FAILED;
pnode = rdata->pnode;
}
if (!pnode || (pnode->nlp_state != NLP_STE_MAPPED_NODE))
return FAILED;
return SUCCESS;
}
/**
* lpfc_reset_flush_io_context -
* @vport: The virtual port (scsi_host) for the flush context
* @tgt_id: If aborting by Target contect - specifies the target id
* @lun_id: If aborting by Lun context - specifies the lun id
* @context: specifies the context level to flush at.
*
* After a reset condition via TMF, we need to flush orphaned i/o
* contexts from the adapter. This routine aborts any contexts
* outstanding, then waits for their completions. The wait is
* bounded by devloss_tmo though.
*
* Return code :
* 0x2003 - Error
* 0x2002 - Success
**/
static int
lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id,
uint64_t lun_id, lpfc_ctx_cmd context)
{
struct lpfc_hba *phba = vport->phba;
unsigned long later;
int cnt;
cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context);
if (cnt)
lpfc_sli_abort_taskmgmt(vport,
&phba->sli.sli3_ring[LPFC_FCP_RING],
tgt_id, lun_id, context);
later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies;
while (time_after(later, jiffies) && cnt) {
schedule_timeout_uninterruptible(msecs_to_jiffies(20));
cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context);
}
if (cnt) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0724 I/O flush failure for context %s : cnt x%x\n",
((context == LPFC_CTX_LUN) ? "LUN" :
((context == LPFC_CTX_TGT) ? "TGT" :
((context == LPFC_CTX_HOST) ? "HOST" : "Unknown"))),
cnt);
return FAILED;
}
return SUCCESS;
}
/**
* lpfc_device_reset_handler - scsi_host_template eh_device_reset entry point
* @cmnd: Pointer to scsi_cmnd data structure.
*
* This routine does a device reset by sending a LUN_RESET task management
* command.
*
* Return code :
* 0x2003 - Error
* 0x2002 - Success
**/
static int
lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *pnode;
unsigned tgt_id = cmnd->device->id;
uint64_t lun_id = cmnd->device->lun;
struct lpfc_scsi_event_header scsi_event;
int status;
u32 logit = LOG_FCP;
if (!rport)
return FAILED;
rdata = rport->dd_data;
if (!rdata || !rdata->pnode) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0798 Device Reset rdata failure: rdata x%px\n",
rdata);
return FAILED;
}
pnode = rdata->pnode;
status = fc_block_rport(rport);
if (status != 0 && status != SUCCESS)
return status;
status = lpfc_chk_tgt_mapped(vport, rport);
if (status == FAILED) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0721 Device Reset rport failure: rdata x%px\n", rdata);
return FAILED;
}
scsi_event.event_type = FC_REG_SCSI_EVENT;
scsi_event.subcategory = LPFC_EVENT_LUNRESET;
scsi_event.lun = lun_id;
memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name));
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID);
status = lpfc_send_taskmgmt(vport, rport, tgt_id, lun_id,
FCP_LUN_RESET);
if (status != SUCCESS)
logit = LOG_TRACE_EVENT;
lpfc_printf_vlog(vport, KERN_ERR, logit,
"0713 SCSI layer issued Device Reset (%d, %llu) "
"return x%x\n", tgt_id, lun_id, status);
/*
* We have to clean up i/o as : they may be orphaned by the TMF;
* or if the TMF failed, they may be in an indeterminate state.
* So, continue on.
* We will report success if all the i/o aborts successfully.
*/
if (status == SUCCESS)
status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id,
LPFC_CTX_LUN);
return status;
}
/**
* lpfc_target_reset_handler - scsi_host_template eh_target_reset entry point
* @cmnd: Pointer to scsi_cmnd data structure.
*
* This routine does a target reset by sending a TARGET_RESET task management
* command.
*
* Return code :
* 0x2003 - Error
* 0x2002 - Success
**/
static int
lpfc_target_reset_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *pnode;
unsigned tgt_id = cmnd->device->id;
uint64_t lun_id = cmnd->device->lun;
struct lpfc_scsi_event_header scsi_event;
int status;
u32 logit = LOG_FCP;
u32 dev_loss_tmo = vport->cfg_devloss_tmo;
unsigned long flags;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);
if (!rport)
return FAILED;
rdata = rport->dd_data;
if (!rdata || !rdata->pnode) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0799 Target Reset rdata failure: rdata x%px\n",
rdata);
return FAILED;
}
pnode = rdata->pnode;
status = fc_block_rport(rport);
if (status != 0 && status != SUCCESS)
return status;
status = lpfc_chk_tgt_mapped(vport, rport);
if (status == FAILED) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0722 Target Reset rport failure: rdata x%px\n", rdata);
if (pnode) {
spin_lock_irqsave(&pnode->lock, flags);
pnode->nlp_flag &= ~NLP_NPR_ADISC;
pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
spin_unlock_irqrestore(&pnode->lock, flags);
}
lpfc_reset_flush_io_context(vport, tgt_id, lun_id,
LPFC_CTX_TGT);
return FAST_IO_FAIL;
}
scsi_event.event_type = FC_REG_SCSI_EVENT;
scsi_event.subcategory = LPFC_EVENT_TGTRESET;
scsi_event.lun = 0;
memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name));
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID);
status = lpfc_send_taskmgmt(vport, rport, tgt_id, lun_id,
FCP_TARGET_RESET);
if (status != SUCCESS) {
logit = LOG_TRACE_EVENT;
/* Issue LOGO, if no LOGO is outstanding */
spin_lock_irqsave(&pnode->lock, flags);
if (!(pnode->save_flags & NLP_WAIT_FOR_LOGO) &&
!pnode->logo_waitq) {
pnode->logo_waitq = &waitq;
pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
pnode->nlp_flag |= NLP_ISSUE_LOGO;
pnode->save_flags |= NLP_WAIT_FOR_LOGO;
spin_unlock_irqrestore(&pnode->lock, flags);
lpfc_unreg_rpi(vport, pnode);
wait_event_timeout(waitq,
(!(pnode->save_flags &
NLP_WAIT_FOR_LOGO)),
msecs_to_jiffies(dev_loss_tmo *
1000));
if (pnode->save_flags & NLP_WAIT_FOR_LOGO) {
lpfc_printf_vlog(vport, KERN_ERR, logit,
"0725 SCSI layer TGTRST "
"failed & LOGO TMO (%d, %llu) "
"return x%x\n",
tgt_id, lun_id, status);
spin_lock_irqsave(&pnode->lock, flags);
pnode->save_flags &= ~NLP_WAIT_FOR_LOGO;
} else {
spin_lock_irqsave(&pnode->lock, flags);
}
pnode->logo_waitq = NULL;
spin_unlock_irqrestore(&pnode->lock, flags);
status = SUCCESS;
} else {
spin_unlock_irqrestore(&pnode->lock, flags);
status = FAILED;
}
}
lpfc_printf_vlog(vport, KERN_ERR, logit,
"0723 SCSI layer issued Target Reset (%d, %llu) "
"return x%x\n", tgt_id, lun_id, status);
/*
* We have to clean up i/o as : they may be orphaned by the TMF;
* or if the TMF failed, they may be in an indeterminate state.
* So, continue on.
* We will report success if all the i/o aborts successfully.
*/
if (status == SUCCESS)
status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id,
LPFC_CTX_TGT);
return status;
}
/**
* lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt
* @cmnd: Pointer to scsi_cmnd data structure.
*
* This routine does host reset to the adaptor port. It brings the HBA
* offline, performs a board restart, and then brings the board back online.
* The lpfc_offline calls lpfc_sli_hba_down which will abort and local
* reject all outstanding SCSI commands to the host and error returned
* back to SCSI mid-level. As this will be SCSI mid-level's last resort
* of error handling, it will only return error if resetting of the adapter
* is not successful; in all other cases, will return success.
*
* Return code :
* 0x2003 - Error
* 0x2002 - Success
**/
static int
lpfc_host_reset_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int rc, ret = SUCCESS;
lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
"3172 SCSI layer issued Host Reset Data:\n");
lpfc_offline_prep(phba, LPFC_MBX_WAIT);
lpfc_offline(phba);
rc = lpfc_sli_brdrestart(phba);
if (rc)
goto error;
/* Wait for successful restart of adapter */
if (phba->sli_rev < LPFC_SLI_REV4) {
rc = lpfc_sli_chipset_init(phba);
if (rc)
goto error;
}
rc = lpfc_online(phba);
if (rc)
goto error;
lpfc_unblock_mgmt_io(phba);
return ret;
error:
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"3323 Failed host reset\n");
lpfc_unblock_mgmt_io(phba);
return FAILED;
}
/**
* lpfc_slave_alloc - scsi_host_template slave_alloc entry point
* @sdev: Pointer to scsi_device.
*
* This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's
* globally available list of scsi buffers. This routine also makes sure scsi
* buffer is not allocated more than HBA limit conveyed to midlayer. This list
* of scsi buffer exists for the lifetime of the driver.
*
* Return codes:
* non-0 - Error
* 0 - Success
**/
static int
lpfc_slave_alloc(struct scsi_device *sdev)
{
struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata;
struct lpfc_hba *phba = vport->phba;
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
uint32_t total = 0;
uint32_t num_to_alloc = 0;
int num_allocated = 0;
uint32_t sdev_cnt;
struct lpfc_device_data *device_data;
unsigned long flags;
struct lpfc_name target_wwpn;
if (!rport || fc_remote_port_chkready(rport))
return -ENXIO;
if (phba->cfg_fof) {
/*
* Check to see if the device data structure for the lun
* exists. If not, create one.
*/
u64_to_wwn(rport->port_name, target_wwpn.u.wwn);
spin_lock_irqsave(&phba->devicelock, flags);
device_data = __lpfc_get_device_data(phba,
&phba->luns,
&vport->fc_portname,
&target_wwpn,
sdev->lun);
if (!device_data) {
spin_unlock_irqrestore(&phba->devicelock, flags);
device_data = lpfc_create_device_data(phba,
&vport->fc_portname,
&target_wwpn,
sdev->lun,
phba->cfg_XLanePriority,
true);
if (!device_data)
return -ENOMEM;
spin_lock_irqsave(&phba->devicelock, flags);
list_add_tail(&device_data->listentry, &phba->luns);
}
device_data->rport_data = rport->dd_data;
device_data->available = true;
spin_unlock_irqrestore(&phba->devicelock, flags);
sdev->hostdata = device_data;
} else {
sdev->hostdata = rport->dd_data;
}
sdev_cnt = atomic_inc_return(&phba->sdev_cnt);
/* For SLI4, all IO buffers are pre-allocated */
if (phba->sli_rev == LPFC_SLI_REV4)
return 0;
/* This code path is now ONLY for SLI3 adapters */
/*
* Populate the cmds_per_lun count scsi_bufs into this host's globally
* available list of scsi buffers. Don't allocate more than the
* HBA limit conveyed to the midlayer via the host structure. The
* formula accounts for the lun_queue_depth + error handlers + 1
* extra. This list of scsi bufs exists for the lifetime of the driver.
*/
total = phba->total_scsi_bufs;
num_to_alloc = vport->cfg_lun_queue_depth + 2;
/* If allocated buffers are enough do nothing */
if ((sdev_cnt * (vport->cfg_lun_queue_depth + 2)) < total)
return 0;
/* Allow some exchanges to be available always to complete discovery */
if (total >= phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"0704 At limitation of %d preallocated "
"command buffers\n", total);
return 0;
/* Allow some exchanges to be available always to complete discovery */
} else if (total + num_to_alloc >
phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"0705 Allocation request of %d "
"command buffers will exceed max of %d. "
"Reducing allocation request to %d.\n",
num_to_alloc, phba->cfg_hba_queue_depth,
(phba->cfg_hba_queue_depth - total));
num_to_alloc = phba->cfg_hba_queue_depth - total;
}
num_allocated = lpfc_new_scsi_buf_s3(vport, num_to_alloc);
if (num_to_alloc != num_allocated) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0708 Allocation request of %d "
"command buffers did not succeed. "
"Allocated %d buffers.\n",
num_to_alloc, num_allocated);
}
if (num_allocated > 0)
phba->total_scsi_bufs += num_allocated;
return 0;
}
/**
* lpfc_slave_configure - scsi_host_template slave_configure entry point
* @sdev: Pointer to scsi_device.
*
* This routine configures following items
* - Tag command queuing support for @sdev if supported.
* - Enable SLI polling for fcp ring if ENABLE_FCP_RING_POLLING flag is set.
*
* Return codes:
* 0 - Success
**/
static int
lpfc_slave_configure(struct scsi_device *sdev)
{
struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata;
struct lpfc_hba *phba = vport->phba;
scsi_change_queue_depth(sdev, vport->cfg_lun_queue_depth);
if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
lpfc_sli_handle_fast_ring_event(phba,
&phba->sli.sli3_ring[LPFC_FCP_RING], HA_R0RE_REQ);
if (phba->cfg_poll & DISABLE_FCP_RING_INT)
lpfc_poll_rearm_timer(phba);
}
return 0;
}
/**
* lpfc_slave_destroy - slave_destroy entry point of SHT data structure
* @sdev: Pointer to scsi_device.
*
* This routine sets @sdev hostatdata filed to null.
**/
static void
lpfc_slave_destroy(struct scsi_device *sdev)
{
struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata;
struct lpfc_hba *phba = vport->phba;
unsigned long flags;
struct lpfc_device_data *device_data = sdev->hostdata;
atomic_dec(&phba->sdev_cnt);
if ((phba->cfg_fof) && (device_data)) {
spin_lock_irqsave(&phba->devicelock, flags);
device_data->available = false;
if (!device_data->oas_enabled)
lpfc_delete_device_data(phba, device_data);
spin_unlock_irqrestore(&phba->devicelock, flags);
}
sdev->hostdata = NULL;
return;
}
/**
* lpfc_create_device_data - creates and initializes device data structure for OAS
* @phba: Pointer to host bus adapter structure.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @lun: Lun on target
* @pri: Priority
* @atomic_create: Flag to indicate if memory should be allocated using the
* GFP_ATOMIC flag or not.
*
* This routine creates a device data structure which will contain identifying
* information for the device (host wwpn, target wwpn, lun), state of OAS,
* whether or not the corresponding lun is available by the system,
* and pointer to the rport data.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_device_data - Success
**/
struct lpfc_device_data*
lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t lun,
uint32_t pri, bool atomic_create)
{
struct lpfc_device_data *lun_info;
int memory_flags;
if (unlikely(!phba) || !vport_wwpn || !target_wwpn ||
!(phba->cfg_fof))
return NULL;
/* Attempt to create the device data to contain lun info */
if (atomic_create)
memory_flags = GFP_ATOMIC;
else
memory_flags = GFP_KERNEL;
lun_info = mempool_alloc(phba->device_data_mem_pool, memory_flags);
if (!lun_info)
return NULL;
INIT_LIST_HEAD(&lun_info->listentry);
lun_info->rport_data = NULL;
memcpy(&lun_info->device_id.vport_wwpn, vport_wwpn,
sizeof(struct lpfc_name));
memcpy(&lun_info->device_id.target_wwpn, target_wwpn,
sizeof(struct lpfc_name));
lun_info->device_id.lun = lun;
lun_info->oas_enabled = false;
lun_info->priority = pri;
lun_info->available = false;
return lun_info;
}
/**
* lpfc_delete_device_data - frees a device data structure for OAS
* @phba: Pointer to host bus adapter structure.
* @lun_info: Pointer to device data structure to free.
*
* This routine frees the previously allocated device data structure passed.
*
**/
void
lpfc_delete_device_data(struct lpfc_hba *phba,
struct lpfc_device_data *lun_info)
{
if (unlikely(!phba) || !lun_info ||
!(phba->cfg_fof))
return;
if (!list_empty(&lun_info->listentry))
list_del(&lun_info->listentry);
mempool_free(lun_info, phba->device_data_mem_pool);
return;
}
/**
* __lpfc_get_device_data - returns the device data for the specified lun
* @phba: Pointer to host bus adapter structure.
* @list: Point to list to search.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @lun: Lun on target
*
* This routine searches the list passed for the specified lun's device data.
* This function does not hold locks, it is the responsibility of the caller
* to ensure the proper lock is held before calling the function.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_device_data - Success
**/
struct lpfc_device_data*
__lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list,
struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t lun)
{
struct lpfc_device_data *lun_info;
if (unlikely(!phba) || !list || !vport_wwpn || !target_wwpn ||
!phba->cfg_fof)
return NULL;
/* Check to see if the lun is already enabled for OAS. */
list_for_each_entry(lun_info, list, listentry) {
if ((memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn,
sizeof(struct lpfc_name)) == 0) &&
(memcmp(&lun_info->device_id.target_wwpn, target_wwpn,
sizeof(struct lpfc_name)) == 0) &&
(lun_info->device_id.lun == lun))
return lun_info;
}
return NULL;
}
/**
* lpfc_find_next_oas_lun - searches for the next oas lun
* @phba: Pointer to host bus adapter structure.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @starting_lun: Pointer to the lun to start searching for
* @found_vport_wwpn: Pointer to the found lun's vport wwpn information
* @found_target_wwpn: Pointer to the found lun's target wwpn information
* @found_lun: Pointer to the found lun.
* @found_lun_status: Pointer to status of the found lun.
* @found_lun_pri: Pointer to priority of the found lun.
*
* This routine searches the luns list for the specified lun
* or the first lun for the vport/target. If the vport wwpn contains
* a zero value then a specific vport is not specified. In this case
* any vport which contains the lun will be considered a match. If the
* target wwpn contains a zero value then a specific target is not specified.
* In this case any target which contains the lun will be considered a
* match. If the lun is found, the lun, vport wwpn, target wwpn and lun status
* are returned. The function will also return the next lun if available.
* If the next lun is not found, starting_lun parameter will be set to
* NO_MORE_OAS_LUN.
*
* Return codes:
* non-0 - Error
* 0 - Success
**/
bool
lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t *starting_lun,
struct lpfc_name *found_vport_wwpn,
struct lpfc_name *found_target_wwpn,
uint64_t *found_lun,
uint32_t *found_lun_status,
uint32_t *found_lun_pri)
{
unsigned long flags;
struct lpfc_device_data *lun_info;
struct lpfc_device_id *device_id;
uint64_t lun;
bool found = false;
if (unlikely(!phba) || !vport_wwpn || !target_wwpn ||
!starting_lun || !found_vport_wwpn ||
!found_target_wwpn || !found_lun || !found_lun_status ||
(*starting_lun == NO_MORE_OAS_LUN) ||
!phba->cfg_fof)
return false;
lun = *starting_lun;
*found_lun = NO_MORE_OAS_LUN;
*starting_lun = NO_MORE_OAS_LUN;
/* Search for lun or the lun closet in value */
spin_lock_irqsave(&phba->devicelock, flags);
list_for_each_entry(lun_info, &phba->luns, listentry) {
if (((wwn_to_u64(vport_wwpn->u.wwn) == 0) ||
(memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn,
sizeof(struct lpfc_name)) == 0)) &&
((wwn_to_u64(target_wwpn->u.wwn) == 0) ||
(memcmp(&lun_info->device_id.target_wwpn, target_wwpn,
sizeof(struct lpfc_name)) == 0)) &&
(lun_info->oas_enabled)) {
device_id = &lun_info->device_id;
if ((!found) &&
((lun == FIND_FIRST_OAS_LUN) ||
(device_id->lun == lun))) {
*found_lun = device_id->lun;
memcpy(found_vport_wwpn,
&device_id->vport_wwpn,
sizeof(struct lpfc_name));
memcpy(found_target_wwpn,
&device_id->target_wwpn,
sizeof(struct lpfc_name));
if (lun_info->available)
*found_lun_status =
OAS_LUN_STATUS_EXISTS;
else
*found_lun_status = 0;
*found_lun_pri = lun_info->priority;
if (phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)
memset(vport_wwpn, 0x0,
sizeof(struct lpfc_name));
if (phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)
memset(target_wwpn, 0x0,
sizeof(struct lpfc_name));
found = true;
} else if (found) {
*starting_lun = device_id->lun;
memcpy(vport_wwpn, &device_id->vport_wwpn,
sizeof(struct lpfc_name));
memcpy(target_wwpn, &device_id->target_wwpn,
sizeof(struct lpfc_name));
break;
}
}
}
spin_unlock_irqrestore(&phba->devicelock, flags);
return found;
}
/**
* lpfc_enable_oas_lun - enables a lun for OAS operations
* @phba: Pointer to host bus adapter structure.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @lun: Lun
* @pri: Priority
*
* This routine enables a lun for oas operations. The routines does so by
* doing the following :
*
* 1) Checks to see if the device data for the lun has been created.
* 2) If found, sets the OAS enabled flag if not set and returns.
* 3) Otherwise, creates a device data structure.
* 4) If successfully created, indicates the device data is for an OAS lun,
* indicates the lun is not available and add to the list of luns.
*
* Return codes:
* false - Error
* true - Success
**/
bool
lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri)
{
struct lpfc_device_data *lun_info;
unsigned long flags;
if (unlikely(!phba) || !vport_wwpn || !target_wwpn ||
!phba->cfg_fof)
return false;
spin_lock_irqsave(&phba->devicelock, flags);
/* Check to see if the device data for the lun has been created */
lun_info = __lpfc_get_device_data(phba, &phba->luns, vport_wwpn,
target_wwpn, lun);
if (lun_info) {
if (!lun_info->oas_enabled)
lun_info->oas_enabled = true;
lun_info->priority = pri;
spin_unlock_irqrestore(&phba->devicelock, flags);
return true;
}
/* Create an lun info structure and add to list of luns */
lun_info = lpfc_create_device_data(phba, vport_wwpn, target_wwpn, lun,
pri, true);
if (lun_info) {
lun_info->oas_enabled = true;
lun_info->priority = pri;
lun_info->available = false;
list_add_tail(&lun_info->listentry, &phba->luns);
spin_unlock_irqrestore(&phba->devicelock, flags);
return true;
}
spin_unlock_irqrestore(&phba->devicelock, flags);
return false;
}
/**
* lpfc_disable_oas_lun - disables a lun for OAS operations
* @phba: Pointer to host bus adapter structure.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @lun: Lun
* @pri: Priority
*
* This routine disables a lun for oas operations. The routines does so by
* doing the following :
*
* 1) Checks to see if the device data for the lun is created.
* 2) If present, clears the flag indicating this lun is for OAS.
* 3) If the lun is not available by the system, the device data is
* freed.
*
* Return codes:
* false - Error
* true - Success
**/
bool
lpfc_disable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t lun, uint8_t pri)
{
struct lpfc_device_data *lun_info;
unsigned long flags;
if (unlikely(!phba) || !vport_wwpn || !target_wwpn ||
!phba->cfg_fof)
return false;
spin_lock_irqsave(&phba->devicelock, flags);
/* Check to see if the lun is available. */
lun_info = __lpfc_get_device_data(phba,
&phba->luns, vport_wwpn,
target_wwpn, lun);
if (lun_info) {
lun_info->oas_enabled = false;
lun_info->priority = pri;
if (!lun_info->available)
lpfc_delete_device_data(phba, lun_info);
spin_unlock_irqrestore(&phba->devicelock, flags);
return true;
}
spin_unlock_irqrestore(&phba->devicelock, flags);
return false;
}
static int
lpfc_no_command(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
{
return SCSI_MLQUEUE_HOST_BUSY;
}
static int
lpfc_no_slave(struct scsi_device *sdev)
{
return -ENODEV;
}
struct scsi_host_template lpfc_template_nvme = {
.module = THIS_MODULE,
.name = LPFC_DRIVER_NAME,
.proc_name = LPFC_DRIVER_NAME,
.info = lpfc_info,
.queuecommand = lpfc_no_command,
.slave_alloc = lpfc_no_slave,
.slave_configure = lpfc_no_slave,
.scan_finished = lpfc_scan_finished,
.this_id = -1,
.sg_tablesize = 1,
.cmd_per_lun = 1,
.shost_groups = lpfc_hba_groups,
.max_sectors = 0xFFFFFFFF,
.vendor_id = LPFC_NL_VENDOR_ID,
.track_queue_depth = 0,
};
struct scsi_host_template lpfc_template = {
.module = THIS_MODULE,
.name = LPFC_DRIVER_NAME,
.proc_name = LPFC_DRIVER_NAME,
.info = lpfc_info,
.queuecommand = lpfc_queuecommand,
.eh_timed_out = fc_eh_timed_out,
.eh_should_retry_cmd = fc_eh_should_retry_cmd,
.eh_abort_handler = lpfc_abort_handler,
.eh_device_reset_handler = lpfc_device_reset_handler,
.eh_target_reset_handler = lpfc_target_reset_handler,
.eh_host_reset_handler = lpfc_host_reset_handler,
.slave_alloc = lpfc_slave_alloc,
.slave_configure = lpfc_slave_configure,
.slave_destroy = lpfc_slave_destroy,
.scan_finished = lpfc_scan_finished,
.this_id = -1,
.sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT,
.cmd_per_lun = LPFC_CMD_PER_LUN,
.shost_groups = lpfc_hba_groups,
.max_sectors = 0xFFFFFFFF,
.vendor_id = LPFC_NL_VENDOR_ID,
.change_queue_depth = scsi_change_queue_depth,
.track_queue_depth = 1,
};
struct scsi_host_template lpfc_vport_template = {
.module = THIS_MODULE,
.name = LPFC_DRIVER_NAME,
.proc_name = LPFC_DRIVER_NAME,
.info = lpfc_info,
.queuecommand = lpfc_queuecommand,
.eh_timed_out = fc_eh_timed_out,
.eh_should_retry_cmd = fc_eh_should_retry_cmd,
.eh_abort_handler = lpfc_abort_handler,
.eh_device_reset_handler = lpfc_device_reset_handler,
.eh_target_reset_handler = lpfc_target_reset_handler,
.eh_bus_reset_handler = NULL,
.eh_host_reset_handler = NULL,
.slave_alloc = lpfc_slave_alloc,
.slave_configure = lpfc_slave_configure,
.slave_destroy = lpfc_slave_destroy,
.scan_finished = lpfc_scan_finished,
.this_id = -1,
.sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT,
.cmd_per_lun = LPFC_CMD_PER_LUN,
.shost_groups = lpfc_vport_groups,
.max_sectors = 0xFFFFFFFF,
.vendor_id = 0,
.change_queue_depth = scsi_change_queue_depth,
.track_queue_depth = 1,
};
|
linux-master
|
drivers/scsi/lpfc/lpfc_scsi.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2009-2015 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/interrupt.h>
#include <linux/mempool.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/list.h>
#include <linux/bsg-lib.h>
#include <linux/vmalloc.h>
#include <scsi/scsi.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi_bsg_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_bsg.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_debugfs.h"
#include "lpfc_vport.h"
#include "lpfc_version.h"
struct lpfc_bsg_event {
struct list_head node;
struct kref kref;
wait_queue_head_t wq;
/* Event type and waiter identifiers */
uint32_t type_mask;
uint32_t req_id;
uint32_t reg_id;
/* next two flags are here for the auto-delete logic */
unsigned long wait_time_stamp;
int waiting;
/* seen and not seen events */
struct list_head events_to_get;
struct list_head events_to_see;
/* driver data associated with the job */
void *dd_data;
};
struct lpfc_bsg_iocb {
struct lpfc_iocbq *cmdiocbq;
struct lpfc_dmabuf *rmp;
struct lpfc_nodelist *ndlp;
};
struct lpfc_bsg_mbox {
LPFC_MBOXQ_t *pmboxq;
MAILBOX_t *mb;
struct lpfc_dmabuf *dmabuffers; /* for BIU diags */
uint8_t *ext; /* extended mailbox data */
uint32_t mbOffset; /* from app */
uint32_t inExtWLen; /* from app */
uint32_t outExtWLen; /* from app */
};
#define TYPE_EVT 1
#define TYPE_IOCB 2
#define TYPE_MBOX 3
struct bsg_job_data {
uint32_t type;
struct bsg_job *set_job; /* job waiting for this iocb to finish */
union {
struct lpfc_bsg_event *evt;
struct lpfc_bsg_iocb iocb;
struct lpfc_bsg_mbox mbox;
} context_un;
};
struct event_data {
struct list_head node;
uint32_t type;
uint32_t immed_dat;
void *data;
uint32_t len;
};
#define BUF_SZ_4K 4096
#define SLI_CT_ELX_LOOPBACK 0x10
enum ELX_LOOPBACK_CMD {
ELX_LOOPBACK_XRI_SETUP,
ELX_LOOPBACK_DATA,
};
#define ELX_LOOPBACK_HEADER_SZ \
(size_t)(&((struct lpfc_sli_ct_request *)NULL)->un)
struct lpfc_dmabufext {
struct lpfc_dmabuf dma;
uint32_t size;
uint32_t flag;
};
static void
lpfc_free_bsg_buffers(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist)
{
struct lpfc_dmabuf *mlast, *next_mlast;
if (mlist) {
list_for_each_entry_safe(mlast, next_mlast, &mlist->list,
list) {
list_del(&mlast->list);
lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
kfree(mlast);
}
lpfc_mbuf_free(phba, mlist->virt, mlist->phys);
kfree(mlist);
}
return;
}
static struct lpfc_dmabuf *
lpfc_alloc_bsg_buffers(struct lpfc_hba *phba, unsigned int size,
int outbound_buffers, struct ulp_bde64 *bpl,
int *bpl_entries)
{
struct lpfc_dmabuf *mlist = NULL;
struct lpfc_dmabuf *mp;
unsigned int bytes_left = size;
/* Verify we can support the size specified */
if (!size || (size > (*bpl_entries * LPFC_BPL_SIZE)))
return NULL;
/* Determine the number of dma buffers to allocate */
*bpl_entries = (size % LPFC_BPL_SIZE ? size/LPFC_BPL_SIZE + 1 :
size/LPFC_BPL_SIZE);
/* Allocate dma buffer and place in BPL passed */
while (bytes_left) {
/* Allocate dma buffer */
mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!mp) {
if (mlist)
lpfc_free_bsg_buffers(phba, mlist);
return NULL;
}
INIT_LIST_HEAD(&mp->list);
mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
if (!mp->virt) {
kfree(mp);
if (mlist)
lpfc_free_bsg_buffers(phba, mlist);
return NULL;
}
/* Queue it to a linked list */
if (!mlist)
mlist = mp;
else
list_add_tail(&mp->list, &mlist->list);
/* Add buffer to buffer pointer list */
if (outbound_buffers)
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
else
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys));
bpl->tus.f.bdeSize = (uint16_t)
(bytes_left >= LPFC_BPL_SIZE ? LPFC_BPL_SIZE :
bytes_left);
bytes_left -= bpl->tus.f.bdeSize;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
bpl++;
}
return mlist;
}
static unsigned int
lpfc_bsg_copy_data(struct lpfc_dmabuf *dma_buffers,
struct bsg_buffer *bsg_buffers,
unsigned int bytes_to_transfer, int to_buffers)
{
struct lpfc_dmabuf *mp;
unsigned int transfer_bytes, bytes_copied = 0;
unsigned int sg_offset, dma_offset;
unsigned char *dma_address, *sg_address;
LIST_HEAD(temp_list);
struct sg_mapping_iter miter;
unsigned long flags;
unsigned int sg_flags = SG_MITER_ATOMIC;
bool sg_valid;
list_splice_init(&dma_buffers->list, &temp_list);
list_add(&dma_buffers->list, &temp_list);
sg_offset = 0;
if (to_buffers)
sg_flags |= SG_MITER_FROM_SG;
else
sg_flags |= SG_MITER_TO_SG;
sg_miter_start(&miter, bsg_buffers->sg_list, bsg_buffers->sg_cnt,
sg_flags);
local_irq_save(flags);
sg_valid = sg_miter_next(&miter);
list_for_each_entry(mp, &temp_list, list) {
dma_offset = 0;
while (bytes_to_transfer && sg_valid &&
(dma_offset < LPFC_BPL_SIZE)) {
dma_address = mp->virt + dma_offset;
if (sg_offset) {
/* Continue previous partial transfer of sg */
sg_address = miter.addr + sg_offset;
transfer_bytes = miter.length - sg_offset;
} else {
sg_address = miter.addr;
transfer_bytes = miter.length;
}
if (bytes_to_transfer < transfer_bytes)
transfer_bytes = bytes_to_transfer;
if (transfer_bytes > (LPFC_BPL_SIZE - dma_offset))
transfer_bytes = LPFC_BPL_SIZE - dma_offset;
if (to_buffers)
memcpy(dma_address, sg_address, transfer_bytes);
else
memcpy(sg_address, dma_address, transfer_bytes);
dma_offset += transfer_bytes;
sg_offset += transfer_bytes;
bytes_to_transfer -= transfer_bytes;
bytes_copied += transfer_bytes;
if (sg_offset >= miter.length) {
sg_offset = 0;
sg_valid = sg_miter_next(&miter);
}
}
}
sg_miter_stop(&miter);
local_irq_restore(flags);
list_del_init(&dma_buffers->list);
list_splice(&temp_list, &dma_buffers->list);
return bytes_copied;
}
/**
* lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler
* @phba: Pointer to HBA context object.
* @cmdiocbq: Pointer to command iocb.
* @rspiocbq: Pointer to response iocb.
*
* This function is the completion handler for iocbs issued using
* lpfc_bsg_send_mgmt_cmd function. This function is called by the
* ring event handler function without any lock held. This function
* can be called from both worker thread context and interrupt
* context. This function also can be called from another thread which
* cleans up the SLI layer objects.
* This function copies the contents of the response iocb to the
* response iocb memory object provided by the caller of
* lpfc_sli_issue_iocb_wait and then wakes up the thread which
* sleeps for the iocb completion.
**/
static void
lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbq,
struct lpfc_iocbq *rspiocbq)
{
struct bsg_job_data *dd_data;
struct bsg_job *job;
struct fc_bsg_reply *bsg_reply;
struct lpfc_dmabuf *bmp, *cmp, *rmp;
struct lpfc_nodelist *ndlp;
struct lpfc_bsg_iocb *iocb;
unsigned long flags;
int rc = 0;
u32 ulp_status, ulp_word4, total_data_placed;
dd_data = cmdiocbq->context_un.dd_data;
/* Determine if job has been aborted */
spin_lock_irqsave(&phba->ct_ev_lock, flags);
job = dd_data->set_job;
if (job) {
bsg_reply = job->reply;
/* Prevent timeout handling from trying to abort job */
job->dd_data = NULL;
}
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
/* Close the timeout handler abort window */
spin_lock_irqsave(&phba->hbalock, flags);
cmdiocbq->cmd_flag &= ~LPFC_IO_CMD_OUTSTANDING;
spin_unlock_irqrestore(&phba->hbalock, flags);
iocb = &dd_data->context_un.iocb;
ndlp = iocb->cmdiocbq->ndlp;
rmp = iocb->rmp;
cmp = cmdiocbq->cmd_dmabuf;
bmp = cmdiocbq->bpl_dmabuf;
ulp_status = get_job_ulpstatus(phba, rspiocbq);
ulp_word4 = get_job_word4(phba, rspiocbq);
total_data_placed = get_job_data_placed(phba, rspiocbq);
/* Copy the completed data or set the error status */
if (job) {
if (ulp_status) {
if (ulp_status == IOSTAT_LOCAL_REJECT) {
switch (ulp_word4 & IOERR_PARAM_MASK) {
case IOERR_SEQUENCE_TIMEOUT:
rc = -ETIMEDOUT;
break;
case IOERR_INVALID_RPI:
rc = -EFAULT;
break;
default:
rc = -EACCES;
break;
}
} else {
rc = -EACCES;
}
} else {
bsg_reply->reply_payload_rcv_len =
lpfc_bsg_copy_data(rmp, &job->reply_payload,
total_data_placed, 0);
}
}
lpfc_free_bsg_buffers(phba, cmp);
lpfc_free_bsg_buffers(phba, rmp);
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
kfree(bmp);
lpfc_nlp_put(ndlp);
lpfc_sli_release_iocbq(phba, cmdiocbq);
kfree(dd_data);
/* Complete the job if the job is still active */
if (job) {
bsg_reply->result = rc;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return;
}
/**
* lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request
* @job: fc_bsg_job to handle
**/
static int
lpfc_bsg_send_mgmt_cmd(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct lpfc_rport_data *rdata = fc_bsg_to_rport(job)->dd_data;
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp = rdata->pnode;
struct fc_bsg_reply *bsg_reply = job->reply;
struct ulp_bde64 *bpl = NULL;
struct lpfc_iocbq *cmdiocbq = NULL;
struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL;
int request_nseg, reply_nseg;
u32 num_entry;
struct bsg_job_data *dd_data;
unsigned long flags;
uint32_t creg_val;
int rc = 0;
int iocb_stat;
u16 ulp_context;
/* in case no data is transferred */
bsg_reply->reply_payload_rcv_len = 0;
if (ndlp->nlp_flag & NLP_ELS_SND_MASK)
return -ENODEV;
/* allocate our bsg tracking structure */
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
if (!dd_data) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2733 Failed allocation of dd_data\n");
rc = -ENOMEM;
goto no_dd_data;
}
cmdiocbq = lpfc_sli_get_iocbq(phba);
if (!cmdiocbq) {
rc = -ENOMEM;
goto free_dd;
}
bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!bmp) {
rc = -ENOMEM;
goto free_cmdiocbq;
}
bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
if (!bmp->virt) {
rc = -ENOMEM;
goto free_bmp;
}
INIT_LIST_HEAD(&bmp->list);
bpl = (struct ulp_bde64 *) bmp->virt;
request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64);
cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
1, bpl, &request_nseg);
if (!cmp) {
rc = -ENOMEM;
goto free_bmp;
}
lpfc_bsg_copy_data(cmp, &job->request_payload,
job->request_payload.payload_len, 1);
bpl += request_nseg;
reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg;
rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0,
bpl, &reply_nseg);
if (!rmp) {
rc = -ENOMEM;
goto free_cmp;
}
num_entry = request_nseg + reply_nseg;
if (phba->sli_rev == LPFC_SLI_REV4)
ulp_context = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
else
ulp_context = ndlp->nlp_rpi;
lpfc_sli_prep_gen_req(phba, cmdiocbq, bmp, ulp_context, num_entry,
phba->fc_ratov * 2);
cmdiocbq->num_bdes = num_entry;
cmdiocbq->vport = phba->pport;
cmdiocbq->cmd_dmabuf = cmp;
cmdiocbq->bpl_dmabuf = bmp;
cmdiocbq->cmd_flag |= LPFC_IO_LIBDFC;
cmdiocbq->cmd_cmpl = lpfc_bsg_send_mgmt_cmd_cmp;
cmdiocbq->context_un.dd_data = dd_data;
dd_data->type = TYPE_IOCB;
dd_data->set_job = job;
dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
dd_data->context_un.iocb.rmp = rmp;
job->dd_data = dd_data;
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
rc = -EIO ;
goto free_rmp;
}
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
cmdiocbq->ndlp = lpfc_nlp_get(ndlp);
if (!cmdiocbq->ndlp) {
rc = -ENODEV;
goto free_rmp;
}
iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
if (iocb_stat == IOCB_SUCCESS) {
spin_lock_irqsave(&phba->hbalock, flags);
/* make sure the I/O had not been completed yet */
if (cmdiocbq->cmd_flag & LPFC_IO_LIBDFC) {
/* open up abort window to timeout handler */
cmdiocbq->cmd_flag |= LPFC_IO_CMD_OUTSTANDING;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
return 0; /* done for now */
} else if (iocb_stat == IOCB_BUSY) {
rc = -EAGAIN;
} else {
rc = -EIO;
}
/* iocb failed so cleanup */
lpfc_nlp_put(ndlp);
free_rmp:
lpfc_free_bsg_buffers(phba, rmp);
free_cmp:
lpfc_free_bsg_buffers(phba, cmp);
free_bmp:
if (bmp->virt)
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
kfree(bmp);
free_cmdiocbq:
lpfc_sli_release_iocbq(phba, cmdiocbq);
free_dd:
kfree(dd_data);
no_dd_data:
/* make error code available to userspace */
bsg_reply->result = rc;
job->dd_data = NULL;
return rc;
}
/**
* lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler
* @phba: Pointer to HBA context object.
* @cmdiocbq: Pointer to command iocb.
* @rspiocbq: Pointer to response iocb.
*
* This function is the completion handler for iocbs issued using
* lpfc_bsg_rport_els_cmp function. This function is called by the
* ring event handler function without any lock held. This function
* can be called from both worker thread context and interrupt
* context. This function also can be called from other thread which
* cleans up the SLI layer objects.
* This function copies the contents of the response iocb to the
* response iocb memory object provided by the caller of
* lpfc_sli_issue_iocb_wait and then wakes up the thread which
* sleeps for the iocb completion.
**/
static void
lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbq,
struct lpfc_iocbq *rspiocbq)
{
struct bsg_job_data *dd_data;
struct bsg_job *job;
struct fc_bsg_reply *bsg_reply;
struct lpfc_nodelist *ndlp;
struct lpfc_dmabuf *pcmd = NULL, *prsp = NULL;
struct fc_bsg_ctels_reply *els_reply;
uint8_t *rjt_data;
unsigned long flags;
unsigned int rsp_size;
int rc = 0;
u32 ulp_status, ulp_word4, total_data_placed;
dd_data = cmdiocbq->context_un.dd_data;
ndlp = dd_data->context_un.iocb.ndlp;
cmdiocbq->ndlp = ndlp;
/* Determine if job has been aborted */
spin_lock_irqsave(&phba->ct_ev_lock, flags);
job = dd_data->set_job;
if (job) {
bsg_reply = job->reply;
/* Prevent timeout handling from trying to abort job */
job->dd_data = NULL;
}
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
/* Close the timeout handler abort window */
spin_lock_irqsave(&phba->hbalock, flags);
cmdiocbq->cmd_flag &= ~LPFC_IO_CMD_OUTSTANDING;
spin_unlock_irqrestore(&phba->hbalock, flags);
ulp_status = get_job_ulpstatus(phba, rspiocbq);
ulp_word4 = get_job_word4(phba, rspiocbq);
total_data_placed = get_job_data_placed(phba, rspiocbq);
pcmd = cmdiocbq->cmd_dmabuf;
prsp = (struct lpfc_dmabuf *)pcmd->list.next;
/* Copy the completed job data or determine the job status if job is
* still active
*/
if (job) {
if (ulp_status == IOSTAT_SUCCESS) {
rsp_size = total_data_placed;
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt,
prsp->virt,
rsp_size);
} else if (ulp_status == IOSTAT_LS_RJT) {
bsg_reply->reply_payload_rcv_len =
sizeof(struct fc_bsg_ctels_reply);
/* LS_RJT data returned in word 4 */
rjt_data = (uint8_t *)&ulp_word4;
els_reply = &bsg_reply->reply_data.ctels_reply;
els_reply->status = FC_CTELS_STATUS_REJECT;
els_reply->rjt_data.action = rjt_data[3];
els_reply->rjt_data.reason_code = rjt_data[2];
els_reply->rjt_data.reason_explanation = rjt_data[1];
els_reply->rjt_data.vendor_unique = rjt_data[0];
} else if (ulp_status == IOSTAT_LOCAL_REJECT &&
(ulp_word4 & IOERR_PARAM_MASK) ==
IOERR_SEQUENCE_TIMEOUT) {
rc = -ETIMEDOUT;
} else {
rc = -EIO;
}
}
lpfc_els_free_iocb(phba, cmdiocbq);
lpfc_nlp_put(ndlp);
kfree(dd_data);
/* Complete the job if the job is still active */
if (job) {
bsg_reply->result = rc;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return;
}
/**
* lpfc_bsg_rport_els - send an ELS command from a bsg request
* @job: fc_bsg_job to handle
**/
static int
lpfc_bsg_rport_els(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct lpfc_hba *phba = vport->phba;
struct lpfc_rport_data *rdata = fc_bsg_to_rport(job)->dd_data;
struct lpfc_nodelist *ndlp = rdata->pnode;
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
uint32_t elscmd;
uint32_t cmdsize;
struct lpfc_iocbq *cmdiocbq;
uint16_t rpi = 0;
struct bsg_job_data *dd_data;
unsigned long flags;
uint32_t creg_val;
int rc = 0;
/* in case no data is transferred */
bsg_reply->reply_payload_rcv_len = 0;
/* verify the els command is not greater than the
* maximum ELS transfer size.
*/
if (job->request_payload.payload_len > FCELSSIZE) {
rc = -EINVAL;
goto no_dd_data;
}
/* allocate our bsg tracking structure */
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
if (!dd_data) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2735 Failed allocation of dd_data\n");
rc = -ENOMEM;
goto no_dd_data;
}
elscmd = bsg_request->rqst_data.r_els.els_code;
cmdsize = job->request_payload.payload_len;
if (!lpfc_nlp_get(ndlp)) {
rc = -ENODEV;
goto free_dd_data;
}
/* We will use the allocated dma buffers by prep els iocb for command
* and response to ensure if the job times out and the request is freed,
* we won't be dma into memory that is no longer allocated to for the
* request.
*/
cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp,
ndlp->nlp_DID, elscmd);
if (!cmdiocbq) {
rc = -EIO;
goto release_ndlp;
}
/* Transfer the request payload to allocated command dma buffer */
sg_copy_to_buffer(job->request_payload.sg_list,
job->request_payload.sg_cnt,
cmdiocbq->cmd_dmabuf->virt,
cmdsize);
rpi = ndlp->nlp_rpi;
if (phba->sli_rev == LPFC_SLI_REV4)
bf_set(wqe_ctxt_tag, &cmdiocbq->wqe.generic.wqe_com,
phba->sli4_hba.rpi_ids[rpi]);
else
cmdiocbq->iocb.ulpContext = rpi;
cmdiocbq->cmd_flag |= LPFC_IO_LIBDFC;
cmdiocbq->context_un.dd_data = dd_data;
cmdiocbq->ndlp = ndlp;
cmdiocbq->cmd_cmpl = lpfc_bsg_rport_els_cmp;
dd_data->type = TYPE_IOCB;
dd_data->set_job = job;
dd_data->context_un.iocb.cmdiocbq = cmdiocbq;
dd_data->context_un.iocb.ndlp = ndlp;
dd_data->context_un.iocb.rmp = NULL;
job->dd_data = dd_data;
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
rc = -EIO;
goto linkdown_err;
}
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
if (rc == IOCB_SUCCESS) {
spin_lock_irqsave(&phba->hbalock, flags);
/* make sure the I/O had not been completed/released */
if (cmdiocbq->cmd_flag & LPFC_IO_LIBDFC) {
/* open up abort window to timeout handler */
cmdiocbq->cmd_flag |= LPFC_IO_CMD_OUTSTANDING;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
return 0; /* done for now */
} else if (rc == IOCB_BUSY) {
rc = -EAGAIN;
} else {
rc = -EIO;
}
/* I/O issue failed. Cleanup resources. */
linkdown_err:
lpfc_els_free_iocb(phba, cmdiocbq);
release_ndlp:
lpfc_nlp_put(ndlp);
free_dd_data:
kfree(dd_data);
no_dd_data:
/* make error code available to userspace */
bsg_reply->result = rc;
job->dd_data = NULL;
return rc;
}
/**
* lpfc_bsg_event_free - frees an allocated event structure
* @kref: Pointer to a kref.
*
* Called from kref_put. Back cast the kref into an event structure address.
* Free any events to get, delete associated nodes, free any events to see,
* free any data then free the event itself.
**/
static void
lpfc_bsg_event_free(struct kref *kref)
{
struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event,
kref);
struct event_data *ed;
list_del(&evt->node);
while (!list_empty(&evt->events_to_get)) {
ed = list_entry(evt->events_to_get.next, typeof(*ed), node);
list_del(&ed->node);
kfree(ed->data);
kfree(ed);
}
while (!list_empty(&evt->events_to_see)) {
ed = list_entry(evt->events_to_see.next, typeof(*ed), node);
list_del(&ed->node);
kfree(ed->data);
kfree(ed);
}
kfree(evt->dd_data);
kfree(evt);
}
/**
* lpfc_bsg_event_ref - increments the kref for an event
* @evt: Pointer to an event structure.
**/
static inline void
lpfc_bsg_event_ref(struct lpfc_bsg_event *evt)
{
kref_get(&evt->kref);
}
/**
* lpfc_bsg_event_unref - Uses kref_put to free an event structure
* @evt: Pointer to an event structure.
**/
static inline void
lpfc_bsg_event_unref(struct lpfc_bsg_event *evt)
{
kref_put(&evt->kref, lpfc_bsg_event_free);
}
/**
* lpfc_bsg_event_new - allocate and initialize a event structure
* @ev_mask: Mask of events.
* @ev_reg_id: Event reg id.
* @ev_req_id: Event request id.
**/
static struct lpfc_bsg_event *
lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id)
{
struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL);
if (!evt)
return NULL;
INIT_LIST_HEAD(&evt->events_to_get);
INIT_LIST_HEAD(&evt->events_to_see);
evt->type_mask = ev_mask;
evt->req_id = ev_req_id;
evt->reg_id = ev_reg_id;
evt->wait_time_stamp = jiffies;
evt->dd_data = NULL;
init_waitqueue_head(&evt->wq);
kref_init(&evt->kref);
return evt;
}
/**
* diag_cmd_data_free - Frees an lpfc dma buffer extension
* @phba: Pointer to HBA context object.
* @mlist: Pointer to an lpfc dma buffer extension.
**/
static int
diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist)
{
struct lpfc_dmabufext *mlast;
struct pci_dev *pcidev;
struct list_head head, *curr, *next;
if ((!mlist) || (!lpfc_is_link_up(phba) &&
(phba->link_flag & LS_LOOPBACK_MODE))) {
return 0;
}
pcidev = phba->pcidev;
list_add_tail(&head, &mlist->dma.list);
list_for_each_safe(curr, next, &head) {
mlast = list_entry(curr, struct lpfc_dmabufext , dma.list);
if (mlast->dma.virt)
dma_free_coherent(&pcidev->dev,
mlast->size,
mlast->dma.virt,
mlast->dma.phys);
kfree(mlast);
}
return 0;
}
/*
* lpfc_bsg_ct_unsol_event - process an unsolicited CT command
*
* This function is called when an unsolicited CT command is received. It
* forwards the event to any processes registered to receive CT events.
**/
int
lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *piocbq)
{
uint32_t evt_req_id = 0;
u16 cmd;
struct lpfc_dmabuf *dmabuf = NULL;
struct lpfc_bsg_event *evt;
struct event_data *evt_dat = NULL;
struct lpfc_iocbq *iocbq;
IOCB_t *iocb = NULL;
size_t offset = 0;
struct list_head head;
struct ulp_bde64 *bde;
dma_addr_t dma_addr;
int i;
struct lpfc_dmabuf *bdeBuf1 = piocbq->cmd_dmabuf;
struct lpfc_dmabuf *bdeBuf2 = piocbq->bpl_dmabuf;
struct lpfc_sli_ct_request *ct_req;
struct bsg_job *job = NULL;
struct fc_bsg_reply *bsg_reply;
struct bsg_job_data *dd_data = NULL;
unsigned long flags;
int size = 0;
u32 bde_count = 0;
INIT_LIST_HEAD(&head);
list_add_tail(&head, &piocbq->list);
ct_req = (struct lpfc_sli_ct_request *)bdeBuf1->virt;
evt_req_id = ct_req->FsType;
cmd = be16_to_cpu(ct_req->CommandResponse.bits.CmdRsp);
spin_lock_irqsave(&phba->ct_ev_lock, flags);
list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
if (!(evt->type_mask & FC_REG_CT_EVENT) ||
evt->req_id != evt_req_id)
continue;
lpfc_bsg_event_ref(evt);
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL);
if (evt_dat == NULL) {
spin_lock_irqsave(&phba->ct_ev_lock, flags);
lpfc_bsg_event_unref(evt);
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2614 Memory allocation failed for "
"CT event\n");
break;
}
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
/* take accumulated byte count from the last iocbq */
iocbq = list_entry(head.prev, typeof(*iocbq), list);
if (phba->sli_rev == LPFC_SLI_REV4)
evt_dat->len = iocbq->wcqe_cmpl.total_data_placed;
else
evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len;
} else {
list_for_each_entry(iocbq, &head, list) {
iocb = &iocbq->iocb;
for (i = 0; i < iocb->ulpBdeCount;
i++)
evt_dat->len +=
iocb->un.cont64[i].tus.f.bdeSize;
}
}
evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL);
if (evt_dat->data == NULL) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2615 Memory allocation failed for "
"CT event data, size %d\n",
evt_dat->len);
kfree(evt_dat);
spin_lock_irqsave(&phba->ct_ev_lock, flags);
lpfc_bsg_event_unref(evt);
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
goto error_ct_unsol_exit;
}
list_for_each_entry(iocbq, &head, list) {
size = 0;
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
bdeBuf1 = iocbq->cmd_dmabuf;
bdeBuf2 = iocbq->bpl_dmabuf;
}
if (phba->sli_rev == LPFC_SLI_REV4)
bde_count = iocbq->wcqe_cmpl.word3;
else
bde_count = iocbq->iocb.ulpBdeCount;
for (i = 0; i < bde_count; i++) {
if (phba->sli3_options &
LPFC_SLI3_HBQ_ENABLED) {
if (i == 0) {
size = iocbq->wqe.gen_req.bde.tus.f.bdeSize;
dmabuf = bdeBuf1;
} else if (i == 1) {
size = iocbq->unsol_rcv_len;
dmabuf = bdeBuf2;
}
if ((offset + size) > evt_dat->len)
size = evt_dat->len - offset;
} else {
size = iocbq->iocb.un.cont64[i].
tus.f.bdeSize;
bde = &iocbq->iocb.un.cont64[i];
dma_addr = getPaddr(bde->addrHigh,
bde->addrLow);
dmabuf = lpfc_sli_ringpostbuf_get(phba,
pring, dma_addr);
}
if (!dmabuf) {
lpfc_printf_log(phba, KERN_ERR,
LOG_LIBDFC, "2616 No dmabuf "
"found for iocbq x%px\n",
iocbq);
kfree(evt_dat->data);
kfree(evt_dat);
spin_lock_irqsave(&phba->ct_ev_lock,
flags);
lpfc_bsg_event_unref(evt);
spin_unlock_irqrestore(
&phba->ct_ev_lock, flags);
goto error_ct_unsol_exit;
}
memcpy((char *)(evt_dat->data) + offset,
dmabuf->virt, size);
offset += size;
if (evt_req_id != SLI_CT_ELX_LOOPBACK &&
!(phba->sli3_options &
LPFC_SLI3_HBQ_ENABLED)) {
lpfc_sli_ringpostbuf_put(phba, pring,
dmabuf);
} else {
switch (cmd) {
case ELX_LOOPBACK_DATA:
if (phba->sli_rev <
LPFC_SLI_REV4)
diag_cmd_data_free(phba,
(struct lpfc_dmabufext
*)dmabuf);
break;
case ELX_LOOPBACK_XRI_SETUP:
if ((phba->sli_rev ==
LPFC_SLI_REV2) ||
(phba->sli3_options &
LPFC_SLI3_HBQ_ENABLED
)) {
lpfc_in_buf_free(phba,
dmabuf);
} else {
lpfc_sli3_post_buffer(phba,
pring,
1);
}
break;
default:
if (!(phba->sli3_options &
LPFC_SLI3_HBQ_ENABLED))
lpfc_sli3_post_buffer(phba,
pring,
1);
break;
}
}
}
}
spin_lock_irqsave(&phba->ct_ev_lock, flags);
if (phba->sli_rev == LPFC_SLI_REV4) {
evt_dat->immed_dat = phba->ctx_idx;
phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX;
/* Provide warning for over-run of the ct_ctx array */
if (phba->ct_ctx[evt_dat->immed_dat].valid ==
UNSOL_VALID)
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
"2717 CT context array entry "
"[%d] over-run: oxid:x%x, "
"sid:x%x\n", phba->ctx_idx,
phba->ct_ctx[
evt_dat->immed_dat].oxid,
phba->ct_ctx[
evt_dat->immed_dat].SID);
phba->ct_ctx[evt_dat->immed_dat].rxid =
get_job_ulpcontext(phba, piocbq);
phba->ct_ctx[evt_dat->immed_dat].oxid =
get_job_rcvoxid(phba, piocbq);
phba->ct_ctx[evt_dat->immed_dat].SID =
bf_get(wqe_els_did,
&piocbq->wqe.xmit_els_rsp.wqe_dest);
phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID;
} else
evt_dat->immed_dat = get_job_ulpcontext(phba, piocbq);
evt_dat->type = FC_REG_CT_EVENT;
list_add(&evt_dat->node, &evt->events_to_see);
if (evt_req_id == SLI_CT_ELX_LOOPBACK) {
wake_up_interruptible(&evt->wq);
lpfc_bsg_event_unref(evt);
break;
}
list_move(evt->events_to_see.prev, &evt->events_to_get);
dd_data = (struct bsg_job_data *)evt->dd_data;
job = dd_data->set_job;
dd_data->set_job = NULL;
lpfc_bsg_event_unref(evt);
if (job) {
bsg_reply = job->reply;
bsg_reply->reply_payload_rcv_len = size;
/* make error code available to userspace */
bsg_reply->result = 0;
job->dd_data = NULL;
/* complete the job back to userspace */
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
spin_lock_irqsave(&phba->ct_ev_lock, flags);
}
}
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
error_ct_unsol_exit:
if (!list_empty(&head))
list_del(&head);
if ((phba->sli_rev < LPFC_SLI_REV4) &&
(evt_req_id == SLI_CT_ELX_LOOPBACK))
return 0;
return 1;
}
/**
* lpfc_bsg_ct_unsol_abort - handler ct abort to management plane
* @phba: Pointer to HBA context object.
* @dmabuf: pointer to a dmabuf that describes the FC sequence
*
* This function handles abort to the CT command toward management plane
* for SLI4 port.
*
* If the pending context of a CT command to management plane present, clears
* such context and returns 1 for handled; otherwise, it returns 0 indicating
* no context exists.
**/
int
lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf)
{
struct fc_frame_header fc_hdr;
struct fc_frame_header *fc_hdr_ptr = &fc_hdr;
int ctx_idx, handled = 0;
uint16_t oxid, rxid;
uint32_t sid;
memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
sid = sli4_sid_from_fc_hdr(fc_hdr_ptr);
oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id);
rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id);
for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) {
if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID)
continue;
if (phba->ct_ctx[ctx_idx].rxid != rxid)
continue;
if (phba->ct_ctx[ctx_idx].oxid != oxid)
continue;
if (phba->ct_ctx[ctx_idx].SID != sid)
continue;
phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID;
handled = 1;
}
return handled;
}
/**
* lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command
* @job: SET_EVENT fc_bsg_job
**/
static int
lpfc_bsg_hba_set_event(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct lpfc_hba *phba = vport->phba;
struct fc_bsg_request *bsg_request = job->request;
struct set_ct_event *event_req;
struct lpfc_bsg_event *evt;
int rc = 0;
struct bsg_job_data *dd_data = NULL;
uint32_t ev_mask;
unsigned long flags;
if (job->request_len <
sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2612 Received SET_CT_EVENT below minimum "
"size\n");
rc = -EINVAL;
goto job_error;
}
event_req = (struct set_ct_event *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
ev_mask = ((uint32_t)(unsigned long)event_req->type_mask &
FC_REG_EVENT_MASK);
spin_lock_irqsave(&phba->ct_ev_lock, flags);
list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
if (evt->reg_id == event_req->ev_reg_id) {
lpfc_bsg_event_ref(evt);
evt->wait_time_stamp = jiffies;
dd_data = (struct bsg_job_data *)evt->dd_data;
break;
}
}
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
if (&evt->node == &phba->ct_ev_waiters) {
/* no event waiting struct yet - first call */
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
if (dd_data == NULL) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2734 Failed allocation of dd_data\n");
rc = -ENOMEM;
goto job_error;
}
evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id,
event_req->ev_req_id);
if (!evt) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2617 Failed allocation of event "
"waiter\n");
rc = -ENOMEM;
goto job_error;
}
dd_data->type = TYPE_EVT;
dd_data->set_job = NULL;
dd_data->context_un.evt = evt;
evt->dd_data = (void *)dd_data;
spin_lock_irqsave(&phba->ct_ev_lock, flags);
list_add(&evt->node, &phba->ct_ev_waiters);
lpfc_bsg_event_ref(evt);
evt->wait_time_stamp = jiffies;
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
}
spin_lock_irqsave(&phba->ct_ev_lock, flags);
evt->waiting = 1;
dd_data->set_job = job; /* for unsolicited command */
job->dd_data = dd_data; /* for fc transport timeout callback*/
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
return 0; /* call job done later */
job_error:
kfree(dd_data);
job->dd_data = NULL;
return rc;
}
/**
* lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command
* @job: GET_EVENT fc_bsg_job
**/
static int
lpfc_bsg_hba_get_event(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct lpfc_hba *phba = vport->phba;
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct get_ct_event *event_req;
struct get_ct_event_reply *event_reply;
struct lpfc_bsg_event *evt, *evt_next;
struct event_data *evt_dat = NULL;
unsigned long flags;
uint32_t rc = 0;
if (job->request_len <
sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2613 Received GET_CT_EVENT request below "
"minimum size\n");
rc = -EINVAL;
goto job_error;
}
event_req = (struct get_ct_event *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
event_reply = (struct get_ct_event_reply *)
bsg_reply->reply_data.vendor_reply.vendor_rsp;
spin_lock_irqsave(&phba->ct_ev_lock, flags);
list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) {
if (evt->reg_id == event_req->ev_reg_id) {
if (list_empty(&evt->events_to_get))
break;
lpfc_bsg_event_ref(evt);
evt->wait_time_stamp = jiffies;
evt_dat = list_entry(evt->events_to_get.prev,
struct event_data, node);
list_del(&evt_dat->node);
break;
}
}
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
/* The app may continue to ask for event data until it gets
* an error indicating that there isn't anymore
*/
if (evt_dat == NULL) {
bsg_reply->reply_payload_rcv_len = 0;
rc = -ENOENT;
goto job_error;
}
if (evt_dat->len > job->request_payload.payload_len) {
evt_dat->len = job->request_payload.payload_len;
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2618 Truncated event data at %d "
"bytes\n",
job->request_payload.payload_len);
}
event_reply->type = evt_dat->type;
event_reply->immed_data = evt_dat->immed_dat;
if (evt_dat->len > 0)
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->request_payload.sg_list,
job->request_payload.sg_cnt,
evt_dat->data, evt_dat->len);
else
bsg_reply->reply_payload_rcv_len = 0;
if (evt_dat) {
kfree(evt_dat->data);
kfree(evt_dat);
}
spin_lock_irqsave(&phba->ct_ev_lock, flags);
lpfc_bsg_event_unref(evt);
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
job->dd_data = NULL;
bsg_reply->result = 0;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return 0;
job_error:
job->dd_data = NULL;
bsg_reply->result = rc;
return rc;
}
/**
* lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler
* @phba: Pointer to HBA context object.
* @cmdiocbq: Pointer to command iocb.
* @rspiocbq: Pointer to response iocb.
*
* This function is the completion handler for iocbs issued using
* lpfc_issue_ct_rsp_cmp function. This function is called by the
* ring event handler function without any lock held. This function
* can be called from both worker thread context and interrupt
* context. This function also can be called from other thread which
* cleans up the SLI layer objects.
* This function copy the contents of the response iocb to the
* response iocb memory object provided by the caller of
* lpfc_sli_issue_iocb_wait and then wakes up the thread which
* sleeps for the iocb completion.
**/
static void
lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbq,
struct lpfc_iocbq *rspiocbq)
{
struct bsg_job_data *dd_data;
struct bsg_job *job;
struct fc_bsg_reply *bsg_reply;
struct lpfc_dmabuf *bmp, *cmp;
struct lpfc_nodelist *ndlp;
unsigned long flags;
int rc = 0;
u32 ulp_status, ulp_word4;
dd_data = cmdiocbq->context_un.dd_data;
/* Determine if job has been aborted */
spin_lock_irqsave(&phba->ct_ev_lock, flags);
job = dd_data->set_job;
if (job) {
/* Prevent timeout handling from trying to abort job */
job->dd_data = NULL;
}
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
/* Close the timeout handler abort window */
spin_lock_irqsave(&phba->hbalock, flags);
cmdiocbq->cmd_flag &= ~LPFC_IO_CMD_OUTSTANDING;
spin_unlock_irqrestore(&phba->hbalock, flags);
ndlp = dd_data->context_un.iocb.ndlp;
cmp = cmdiocbq->cmd_dmabuf;
bmp = cmdiocbq->bpl_dmabuf;
ulp_status = get_job_ulpstatus(phba, rspiocbq);
ulp_word4 = get_job_word4(phba, rspiocbq);
/* Copy the completed job data or set the error status */
if (job) {
bsg_reply = job->reply;
if (ulp_status) {
if (ulp_status == IOSTAT_LOCAL_REJECT) {
switch (ulp_word4 & IOERR_PARAM_MASK) {
case IOERR_SEQUENCE_TIMEOUT:
rc = -ETIMEDOUT;
break;
case IOERR_INVALID_RPI:
rc = -EFAULT;
break;
default:
rc = -EACCES;
break;
}
} else {
rc = -EACCES;
}
} else {
bsg_reply->reply_payload_rcv_len = 0;
}
}
lpfc_free_bsg_buffers(phba, cmp);
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
kfree(bmp);
lpfc_sli_release_iocbq(phba, cmdiocbq);
lpfc_nlp_put(ndlp);
kfree(dd_data);
/* Complete the job if the job is still active */
if (job) {
bsg_reply->result = rc;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return;
}
/**
* lpfc_issue_ct_rsp - issue a ct response
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
* @tag: tag index value into the ports context exchange array.
* @cmp: Pointer to a cmp dma buffer descriptor.
* @bmp: Pointer to a bmp dma buffer descriptor.
* @num_entry: Number of enties in the bde.
**/
static int
lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct bsg_job *job, uint32_t tag,
struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp,
int num_entry)
{
struct lpfc_iocbq *ctiocb = NULL;
int rc = 0;
struct lpfc_nodelist *ndlp = NULL;
struct bsg_job_data *dd_data;
unsigned long flags;
uint32_t creg_val;
u16 ulp_context, iotag;
ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID);
if (!ndlp) {
lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
"2721 ndlp null for oxid %x SID %x\n",
phba->ct_ctx[tag].rxid,
phba->ct_ctx[tag].SID);
return IOCB_ERROR;
}
/* allocate our bsg tracking structure */
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
if (!dd_data) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2736 Failed allocation of dd_data\n");
rc = -ENOMEM;
goto no_dd_data;
}
/* Allocate buffer for command iocb */
ctiocb = lpfc_sli_get_iocbq(phba);
if (!ctiocb) {
rc = -ENOMEM;
goto no_ctiocb;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
/* Do not issue unsol response if oxid not marked as valid */
if (phba->ct_ctx[tag].valid != UNSOL_VALID) {
rc = IOCB_ERROR;
goto issue_ct_rsp_exit;
}
lpfc_sli_prep_xmit_seq64(phba, ctiocb, bmp,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
phba->ct_ctx[tag].oxid, num_entry,
FC_RCTL_DD_SOL_CTL, 1,
CMD_XMIT_SEQUENCE64_WQE);
/* The exchange is done, mark the entry as invalid */
phba->ct_ctx[tag].valid = UNSOL_INVALID;
iotag = get_wqe_reqtag(ctiocb);
} else {
lpfc_sli_prep_xmit_seq64(phba, ctiocb, bmp, 0, tag, num_entry,
FC_RCTL_DD_SOL_CTL, 1,
CMD_XMIT_SEQUENCE64_CX);
ctiocb->num_bdes = num_entry;
iotag = ctiocb->iocb.ulpIoTag;
}
ulp_context = get_job_ulpcontext(phba, ctiocb);
/* Xmit CT response on exchange <xid> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n",
ulp_context, iotag, tag, phba->link_state);
ctiocb->cmd_flag |= LPFC_IO_LIBDFC;
ctiocb->vport = phba->pport;
ctiocb->context_un.dd_data = dd_data;
ctiocb->cmd_dmabuf = cmp;
ctiocb->bpl_dmabuf = bmp;
ctiocb->ndlp = ndlp;
ctiocb->cmd_cmpl = lpfc_issue_ct_rsp_cmp;
dd_data->type = TYPE_IOCB;
dd_data->set_job = job;
dd_data->context_un.iocb.cmdiocbq = ctiocb;
dd_data->context_un.iocb.ndlp = lpfc_nlp_get(ndlp);
if (!dd_data->context_un.iocb.ndlp) {
rc = -IOCB_ERROR;
goto issue_ct_rsp_exit;
}
dd_data->context_un.iocb.rmp = NULL;
job->dd_data = dd_data;
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
rc = -IOCB_ERROR;
goto issue_ct_rsp_exit;
}
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
if (rc == IOCB_SUCCESS) {
spin_lock_irqsave(&phba->hbalock, flags);
/* make sure the I/O had not been completed/released */
if (ctiocb->cmd_flag & LPFC_IO_LIBDFC) {
/* open up abort window to timeout handler */
ctiocb->cmd_flag |= LPFC_IO_CMD_OUTSTANDING;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
return 0; /* done for now */
}
/* iocb failed so cleanup */
job->dd_data = NULL;
lpfc_nlp_put(ndlp);
issue_ct_rsp_exit:
lpfc_sli_release_iocbq(phba, ctiocb);
no_ctiocb:
kfree(dd_data);
no_dd_data:
return rc;
}
/**
* lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command
* @job: SEND_MGMT_RESP fc_bsg_job
**/
static int
lpfc_bsg_send_mgmt_rsp(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct lpfc_hba *phba = vport->phba;
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
struct ulp_bde64 *bpl;
struct lpfc_dmabuf *bmp = NULL, *cmp = NULL;
int bpl_entries;
uint32_t tag = mgmt_resp->tag;
unsigned long reqbfrcnt =
(unsigned long)job->request_payload.payload_len;
int rc = 0;
/* in case no data is transferred */
bsg_reply->reply_payload_rcv_len = 0;
if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) {
rc = -ERANGE;
goto send_mgmt_rsp_exit;
}
bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!bmp) {
rc = -ENOMEM;
goto send_mgmt_rsp_exit;
}
bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
if (!bmp->virt) {
rc = -ENOMEM;
goto send_mgmt_rsp_free_bmp;
}
INIT_LIST_HEAD(&bmp->list);
bpl = (struct ulp_bde64 *) bmp->virt;
bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64));
cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len,
1, bpl, &bpl_entries);
if (!cmp) {
rc = -ENOMEM;
goto send_mgmt_rsp_free_bmp;
}
lpfc_bsg_copy_data(cmp, &job->request_payload,
job->request_payload.payload_len, 1);
rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries);
if (rc == IOCB_SUCCESS)
return 0; /* done for now */
rc = -EACCES;
lpfc_free_bsg_buffers(phba, cmp);
send_mgmt_rsp_free_bmp:
if (bmp->virt)
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
kfree(bmp);
send_mgmt_rsp_exit:
/* make error code available to userspace */
bsg_reply->result = rc;
job->dd_data = NULL;
return rc;
}
/**
* lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode
* @phba: Pointer to HBA context object.
*
* This function is responsible for preparing driver for diag loopback
* on device.
*/
static int
lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct Scsi_Host *shost;
struct lpfc_sli *psli;
struct lpfc_queue *qp = NULL;
struct lpfc_sli_ring *pring;
int i = 0;
psli = &phba->sli;
if (!psli)
return -ENODEV;
if ((phba->link_state == LPFC_HBA_ERROR) ||
(psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
(!(psli->sli_flag & LPFC_SLI_ACTIVE)))
return -EACCES;
vports = lpfc_create_vport_work_array(phba);
if (vports) {
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
scsi_block_requests(shost);
}
lpfc_destroy_vport_work_array(phba, vports);
} else {
shost = lpfc_shost_from_vport(phba->pport);
scsi_block_requests(shost);
}
if (phba->sli_rev != LPFC_SLI_REV4) {
pring = &psli->sli3_ring[LPFC_FCP_RING];
lpfc_emptyq_wait(phba, &pring->txcmplq, &phba->hbalock);
return 0;
}
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
pring = qp->pring;
if (!pring || (pring->ringno != LPFC_FCP_RING))
continue;
if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
&pring->ring_lock))
break;
}
return 0;
}
/**
* lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode
* @phba: Pointer to HBA context object.
*
* This function is responsible for driver exit processing of setting up
* diag loopback mode on device.
*/
static void
lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba)
{
struct Scsi_Host *shost;
struct lpfc_vport **vports;
int i;
vports = lpfc_create_vport_work_array(phba);
if (vports) {
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
scsi_unblock_requests(shost);
}
lpfc_destroy_vport_work_array(phba, vports);
} else {
shost = lpfc_shost_from_vport(phba->pport);
scsi_unblock_requests(shost);
}
return;
}
/**
* lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command
* @phba: Pointer to HBA context object.
* @job: LPFC_BSG_VENDOR_DIAG_MODE
*
* This function is responsible for placing an sli3 port into diagnostic
* loopback mode in order to perform a diagnostic loopback test.
* All new scsi requests are blocked, a small delay is used to allow the
* scsi requests to complete then the link is brought down. If the link is
* is placed in loopback mode then scsi requests are again allowed
* so the scsi mid-layer doesn't give up on the port.
* All of this is done in-line.
*/
static int
lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct bsg_job *job)
{
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct diag_mode_set *loopback_mode;
uint32_t link_flags;
uint32_t timeout;
LPFC_MBOXQ_t *pmboxq = NULL;
int mbxstatus = MBX_SUCCESS;
int i = 0;
int rc = 0;
/* no data to return just the return code */
bsg_reply->reply_payload_rcv_len = 0;
if (job->request_len < sizeof(struct fc_bsg_request) +
sizeof(struct diag_mode_set)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2738 Received DIAG MODE request size:%d "
"below the minimum size:%d\n",
job->request_len,
(int)(sizeof(struct fc_bsg_request) +
sizeof(struct diag_mode_set)));
rc = -EINVAL;
goto job_error;
}
rc = lpfc_bsg_diag_mode_enter(phba);
if (rc)
goto job_error;
/* bring the link to diagnostic mode */
loopback_mode = (struct diag_mode_set *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
link_flags = loopback_mode->type;
timeout = loopback_mode->timeout * 100;
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq) {
rc = -ENOMEM;
goto loopback_mode_exit;
}
memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
pmboxq->u.mb.mbxOwner = OWN_HOST;
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) {
/* wait for link down before proceeding */
i = 0;
while (phba->link_state != LPFC_LINK_DOWN) {
if (i++ > timeout) {
rc = -ETIMEDOUT;
goto loopback_mode_exit;
}
msleep(10);
}
memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t));
if (link_flags == INTERNAL_LOOP_BACK)
pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
else
pmboxq->u.mb.un.varInitLnk.link_flags =
FLAGS_TOPOLOGY_MODE_LOOP;
pmboxq->u.mb.mbxCommand = MBX_INIT_LINK;
pmboxq->u.mb.mbxOwner = OWN_HOST;
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
LPFC_MBOX_TMO);
if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
rc = -ENODEV;
else {
spin_lock_irq(&phba->hbalock);
phba->link_flag |= LS_LOOPBACK_MODE;
spin_unlock_irq(&phba->hbalock);
/* wait for the link attention interrupt */
msleep(100);
i = 0;
while (phba->link_state != LPFC_HBA_READY) {
if (i++ > timeout) {
rc = -ETIMEDOUT;
break;
}
msleep(10);
}
}
} else
rc = -ENODEV;
loopback_mode_exit:
lpfc_bsg_diag_mode_exit(phba);
/*
* Let SLI layer release mboxq if mbox command completed after timeout.
*/
if (pmboxq && mbxstatus != MBX_TIMEOUT)
mempool_free(pmboxq, phba->mbox_mem_pool);
job_error:
/* make error code available to userspace */
bsg_reply->result = rc;
/* complete the job back to userspace if no error */
if (rc == 0)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state
* @phba: Pointer to HBA context object.
* @diag: Flag for set link to diag or nomral operation state.
*
* This function is responsible for issuing a sli4 mailbox command for setting
* link to either diag state or normal operation state.
*/
static int
lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag)
{
LPFC_MBOXQ_t *pmboxq;
struct lpfc_mbx_set_link_diag_state *link_diag_state;
uint32_t req_len, alloc_len;
int mbxstatus = MBX_SUCCESS, rc;
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq)
return -ENOMEM;
req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
sizeof(struct lpfc_sli4_cfg_mhdr));
alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
req_len, LPFC_SLI4_MBX_EMBED);
if (alloc_len != req_len) {
rc = -ENOMEM;
goto link_diag_state_set_out;
}
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3128 Set link to diagnostic state:x%x (x%x/x%x)\n",
diag, phba->sli4_hba.lnk_info.lnk_tp,
phba->sli4_hba.lnk_info.lnk_no);
link_diag_state = &pmboxq->u.mqe.un.link_diag_state;
bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req,
LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE);
bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req,
phba->sli4_hba.lnk_info.lnk_no);
bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req,
phba->sli4_hba.lnk_info.lnk_tp);
if (diag)
bf_set(lpfc_mbx_set_diag_state_diag,
&link_diag_state->u.req, 1);
else
bf_set(lpfc_mbx_set_diag_state_diag,
&link_diag_state->u.req, 0);
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0))
rc = 0;
else
rc = -ENODEV;
link_diag_state_set_out:
if (pmboxq && (mbxstatus != MBX_TIMEOUT))
mempool_free(pmboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_sli4_bsg_set_loopback_mode - set sli4 internal loopback diagnostic
* @phba: Pointer to HBA context object.
* @mode: loopback mode to set
* @link_no: link number for loopback mode to set
*
* This function is responsible for issuing a sli4 mailbox command for setting
* up loopback diagnostic for a link.
*/
static int
lpfc_sli4_bsg_set_loopback_mode(struct lpfc_hba *phba, int mode,
uint32_t link_no)
{
LPFC_MBOXQ_t *pmboxq;
uint32_t req_len, alloc_len;
struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback;
int mbxstatus = MBX_SUCCESS, rc = 0;
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq)
return -ENOMEM;
req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) -
sizeof(struct lpfc_sli4_cfg_mhdr));
alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK,
req_len, LPFC_SLI4_MBX_EMBED);
if (alloc_len != req_len) {
mempool_free(pmboxq, phba->mbox_mem_pool);
return -ENOMEM;
}
link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback;
bf_set(lpfc_mbx_set_diag_state_link_num,
&link_diag_loopback->u.req, link_no);
if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
bf_set(lpfc_mbx_set_diag_state_link_type,
&link_diag_loopback->u.req, LPFC_LNK_FC_TRUNKED);
} else {
bf_set(lpfc_mbx_set_diag_state_link_type,
&link_diag_loopback->u.req,
phba->sli4_hba.lnk_info.lnk_tp);
}
bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req,
mode);
mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"3127 Failed setup loopback mode mailbox "
"command, rc:x%x, status:x%x\n", mbxstatus,
pmboxq->u.mb.mbxStatus);
rc = -ENODEV;
}
if (pmboxq && (mbxstatus != MBX_TIMEOUT))
mempool_free(pmboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic
* @phba: Pointer to HBA context object.
*
* This function set up SLI4 FC port registrations for diagnostic run, which
* includes all the rpis, vfi, and also vpi.
*/
static int
lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
{
if (phba->pport->fc_flag & FC_VFI_REGISTERED) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"3136 Port still had vfi registered: "
"mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n",
phba->pport->fc_myDID, phba->fcf.fcfi,
phba->sli4_hba.vfi_ids[phba->pport->vfi],
phba->vpi_ids[phba->pport->vpi]);
return -EINVAL;
}
return lpfc_issue_reg_vfi(phba->pport);
}
/**
* lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command
* @phba: Pointer to HBA context object.
* @job: LPFC_BSG_VENDOR_DIAG_MODE
*
* This function is responsible for placing an sli4 port into diagnostic
* loopback mode in order to perform a diagnostic loopback test.
*/
static int
lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct bsg_job *job)
{
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct diag_mode_set *loopback_mode;
uint32_t link_flags, timeout, link_no;
int i, rc = 0;
/* no data to return just the return code */
bsg_reply->reply_payload_rcv_len = 0;
if (job->request_len < sizeof(struct fc_bsg_request) +
sizeof(struct diag_mode_set)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"3011 Received DIAG MODE request size:%d "
"below the minimum size:%d\n",
job->request_len,
(int)(sizeof(struct fc_bsg_request) +
sizeof(struct diag_mode_set)));
rc = -EINVAL;
goto job_done;
}
loopback_mode = (struct diag_mode_set *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
link_flags = loopback_mode->type;
timeout = loopback_mode->timeout * 100;
if (loopback_mode->physical_link == -1)
link_no = phba->sli4_hba.lnk_info.lnk_no;
else
link_no = loopback_mode->physical_link;
if (link_flags == DISABLE_LOOP_BACK) {
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
LPFC_DIAG_LOOPBACK_TYPE_DISABLE,
link_no);
if (!rc) {
/* Unset the need disable bit */
phba->sli4_hba.conf_trunk &= ~((1 << link_no) << 4);
}
goto job_done;
} else {
/* Check if we need to disable the loopback state */
if (phba->sli4_hba.conf_trunk & ((1 << link_no) << 4)) {
rc = -EPERM;
goto job_done;
}
}
rc = lpfc_bsg_diag_mode_enter(phba);
if (rc)
goto job_done;
/* indicate we are in loobpack diagnostic mode */
spin_lock_irq(&phba->hbalock);
phba->link_flag |= LS_LOOPBACK_MODE;
spin_unlock_irq(&phba->hbalock);
/* reset port to start frome scratch */
rc = lpfc_selective_reset(phba);
if (rc)
goto job_done;
/* bring the link to diagnostic mode */
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3129 Bring link to diagnostic state.\n");
rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"3130 Failed to bring link to diagnostic "
"state, rc:x%x\n", rc);
goto loopback_mode_exit;
}
/* wait for link down before proceeding */
i = 0;
while (phba->link_state != LPFC_LINK_DOWN) {
if (i++ > timeout) {
rc = -ETIMEDOUT;
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3131 Timeout waiting for link to "
"diagnostic mode, timeout:%d ms\n",
timeout * 10);
goto loopback_mode_exit;
}
msleep(10);
}
/* set up loopback mode */
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3132 Set up loopback mode:x%x\n", link_flags);
switch (link_flags) {
case INTERNAL_LOOP_BACK:
if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
LPFC_DIAG_LOOPBACK_TYPE_INTERNAL,
link_no);
} else {
/* Trunk is configured, but link is not in this trunk */
if (phba->sli4_hba.conf_trunk) {
rc = -ELNRNG;
goto loopback_mode_exit;
}
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
LPFC_DIAG_LOOPBACK_TYPE_INTERNAL,
link_no);
}
if (!rc) {
/* Set the need disable bit */
phba->sli4_hba.conf_trunk |= (1 << link_no) << 4;
}
break;
case EXTERNAL_LOOP_BACK:
if (phba->sli4_hba.conf_trunk & (1 << link_no)) {
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
LPFC_DIAG_LOOPBACK_TYPE_EXTERNAL_TRUNKED,
link_no);
} else {
/* Trunk is configured, but link is not in this trunk */
if (phba->sli4_hba.conf_trunk) {
rc = -ELNRNG;
goto loopback_mode_exit;
}
rc = lpfc_sli4_bsg_set_loopback_mode(phba,
LPFC_DIAG_LOOPBACK_TYPE_SERDES,
link_no);
}
if (!rc) {
/* Set the need disable bit */
phba->sli4_hba.conf_trunk |= (1 << link_no) << 4;
}
break;
default:
rc = -EINVAL;
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"3141 Loopback mode:x%x not supported\n",
link_flags);
goto loopback_mode_exit;
}
if (!rc) {
/* wait for the link attention interrupt */
msleep(100);
i = 0;
while (phba->link_state < LPFC_LINK_UP) {
if (i++ > timeout) {
rc = -ETIMEDOUT;
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3137 Timeout waiting for link up "
"in loopback mode, timeout:%d ms\n",
timeout * 10);
break;
}
msleep(10);
}
}
/* port resource registration setup for loopback diagnostic */
if (!rc) {
/* set up a none zero myDID for loopback test */
phba->pport->fc_myDID = 1;
rc = lpfc_sli4_diag_fcport_reg_setup(phba);
} else
goto loopback_mode_exit;
if (!rc) {
/* wait for the port ready */
msleep(100);
i = 0;
while (phba->link_state != LPFC_HBA_READY) {
if (i++ > timeout) {
rc = -ETIMEDOUT;
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3133 Timeout waiting for port "
"loopback mode ready, timeout:%d ms\n",
timeout * 10);
break;
}
msleep(10);
}
}
loopback_mode_exit:
/* clear loopback diagnostic mode */
if (rc) {
spin_lock_irq(&phba->hbalock);
phba->link_flag &= ~LS_LOOPBACK_MODE;
spin_unlock_irq(&phba->hbalock);
}
lpfc_bsg_diag_mode_exit(phba);
job_done:
/* make error code available to userspace */
bsg_reply->result = rc;
/* complete the job back to userspace if no error */
if (rc == 0)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode
* @job: LPFC_BSG_VENDOR_DIAG_MODE
*
* This function is responsible for responding to check and dispatch bsg diag
* command from the user to proper driver action routines.
*/
static int
lpfc_bsg_diag_loopback_mode(struct bsg_job *job)
{
struct Scsi_Host *shost;
struct lpfc_vport *vport;
struct lpfc_hba *phba;
int rc;
shost = fc_bsg_to_shost(job);
if (!shost)
return -ENODEV;
vport = shost_priv(shost);
if (!vport)
return -ENODEV;
phba = vport->phba;
if (!phba)
return -ENODEV;
if (phba->sli_rev < LPFC_SLI_REV4)
rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job);
else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
LPFC_SLI_INTF_IF_TYPE_2)
rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job);
else
rc = -ENODEV;
return rc;
}
/**
* lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode
* @job: LPFC_BSG_VENDOR_DIAG_MODE_END
*
* This function is responsible for responding to check and dispatch bsg diag
* command from the user to proper driver action routines.
*/
static int
lpfc_sli4_bsg_diag_mode_end(struct bsg_job *job)
{
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct Scsi_Host *shost;
struct lpfc_vport *vport;
struct lpfc_hba *phba;
struct diag_mode_set *loopback_mode_end_cmd;
uint32_t timeout;
int rc, i;
shost = fc_bsg_to_shost(job);
if (!shost)
return -ENODEV;
vport = shost_priv(shost);
if (!vport)
return -ENODEV;
phba = vport->phba;
if (!phba)
return -ENODEV;
if (phba->sli_rev < LPFC_SLI_REV4)
return -ENODEV;
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2)
return -ENODEV;
/* clear loopback diagnostic mode */
spin_lock_irq(&phba->hbalock);
phba->link_flag &= ~LS_LOOPBACK_MODE;
spin_unlock_irq(&phba->hbalock);
loopback_mode_end_cmd = (struct diag_mode_set *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
timeout = loopback_mode_end_cmd->timeout * 100;
rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"3139 Failed to bring link to diagnostic "
"state, rc:x%x\n", rc);
goto loopback_mode_end_exit;
}
/* wait for link down before proceeding */
i = 0;
while (phba->link_state != LPFC_LINK_DOWN) {
if (i++ > timeout) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3140 Timeout waiting for link to "
"diagnostic mode_end, timeout:%d ms\n",
timeout * 10);
/* there is nothing much we can do here */
break;
}
msleep(10);
}
/* reset port resource registrations */
rc = lpfc_selective_reset(phba);
phba->pport->fc_myDID = 0;
loopback_mode_end_exit:
/* make return code available to userspace */
bsg_reply->result = rc;
/* complete the job back to userspace if no error */
if (rc == 0)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test
* @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST
*
* This function is to perform SLI4 diag link test request from the user
* applicaiton.
*/
static int
lpfc_sli4_bsg_link_diag_test(struct bsg_job *job)
{
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct Scsi_Host *shost;
struct lpfc_vport *vport;
struct lpfc_hba *phba;
LPFC_MBOXQ_t *pmboxq;
struct sli4_link_diag *link_diag_test_cmd;
uint32_t req_len, alloc_len;
struct lpfc_mbx_run_link_diag_test *run_link_diag_test;
union lpfc_sli4_cfg_shdr *shdr;
uint32_t shdr_status, shdr_add_status;
struct diag_status *diag_status_reply;
int mbxstatus, rc = -ENODEV, rc1 = 0;
shost = fc_bsg_to_shost(job);
if (!shost)
goto job_error;
vport = shost_priv(shost);
if (!vport)
goto job_error;
phba = vport->phba;
if (!phba)
goto job_error;
if (phba->sli_rev < LPFC_SLI_REV4)
goto job_error;
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2)
goto job_error;
if (job->request_len < sizeof(struct fc_bsg_request) +
sizeof(struct sli4_link_diag)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"3013 Received LINK DIAG TEST request "
" size:%d below the minimum size:%d\n",
job->request_len,
(int)(sizeof(struct fc_bsg_request) +
sizeof(struct sli4_link_diag)));
rc = -EINVAL;
goto job_error;
}
rc = lpfc_bsg_diag_mode_enter(phba);
if (rc)
goto job_error;
link_diag_test_cmd = (struct sli4_link_diag *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
if (rc)
goto job_error;
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq) {
rc = -ENOMEM;
goto link_diag_test_exit;
}
req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) -
sizeof(struct lpfc_sli4_cfg_mhdr));
alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE,
req_len, LPFC_SLI4_MBX_EMBED);
if (alloc_len != req_len) {
rc = -ENOMEM;
goto link_diag_test_exit;
}
run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test;
bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req,
phba->sli4_hba.lnk_info.lnk_no);
bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req,
phba->sli4_hba.lnk_info.lnk_tp);
bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req,
link_diag_test_cmd->test_id);
bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req,
link_diag_test_cmd->loops);
bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req,
link_diag_test_cmd->test_version);
bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req,
link_diag_test_cmd->error_action);
mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
shdr = (union lpfc_sli4_cfg_shdr *)
&pmboxq->u.mqe.un.sli4_config.header.cfg_shdr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status || mbxstatus) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"3010 Run link diag test mailbox failed with "
"mbx_status x%x status x%x, add_status x%x\n",
mbxstatus, shdr_status, shdr_add_status);
}
diag_status_reply = (struct diag_status *)
bsg_reply->reply_data.vendor_reply.vendor_rsp;
if (job->reply_len < sizeof(*bsg_reply) + sizeof(*diag_status_reply)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"3012 Received Run link diag test reply "
"below minimum size (%d): reply_len:%d\n",
(int)(sizeof(*bsg_reply) +
sizeof(*diag_status_reply)),
job->reply_len);
rc = -EINVAL;
goto job_error;
}
diag_status_reply->mbox_status = mbxstatus;
diag_status_reply->shdr_status = shdr_status;
diag_status_reply->shdr_add_status = shdr_add_status;
link_diag_test_exit:
rc1 = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
if (pmboxq)
mempool_free(pmboxq, phba->mbox_mem_pool);
lpfc_bsg_diag_mode_exit(phba);
job_error:
/* make error code available to userspace */
if (rc1 && !rc)
rc = rc1;
bsg_reply->result = rc;
/* complete the job back to userspace if no error */
if (rc == 0)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfcdiag_loop_self_reg - obtains a remote port login id
* @phba: Pointer to HBA context object
* @rpi: Pointer to a remote port login id
*
* This function obtains a remote port login id so the diag loopback test
* can send and receive its own unsolicited CT command.
**/
static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi)
{
LPFC_MBOXQ_t *mbox;
struct lpfc_dmabuf *dmabuff;
int status;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return -ENOMEM;
if (phba->sli_rev < LPFC_SLI_REV4)
status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
(uint8_t *)&phba->pport->fc_sparam,
mbox, *rpi);
else {
*rpi = lpfc_sli4_alloc_rpi(phba);
if (*rpi == LPFC_RPI_ALLOC_ERROR) {
mempool_free(mbox, phba->mbox_mem_pool);
return -EBUSY;
}
status = lpfc_reg_rpi(phba, phba->pport->vpi,
phba->pport->fc_myDID,
(uint8_t *)&phba->pport->fc_sparam,
mbox, *rpi);
}
if (status) {
mempool_free(mbox, phba->mbox_mem_pool);
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_free_rpi(phba, *rpi);
return -ENOMEM;
}
dmabuff = (struct lpfc_dmabuf *)mbox->ctx_buf;
mbox->ctx_buf = NULL;
mbox->ctx_ndlp = NULL;
status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
kfree(dmabuff);
if (status != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_free_rpi(phba, *rpi);
return -ENODEV;
}
if (phba->sli_rev < LPFC_SLI_REV4)
*rpi = mbox->u.mb.un.varWords[0];
lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
kfree(dmabuff);
mempool_free(mbox, phba->mbox_mem_pool);
return 0;
}
/**
* lpfcdiag_loop_self_unreg - unregs from the rpi
* @phba: Pointer to HBA context object
* @rpi: Remote port login id
*
* This function unregisters the rpi obtained in lpfcdiag_loop_self_reg
**/
static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi)
{
LPFC_MBOXQ_t *mbox;
int status;
/* Allocate mboxq structure */
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox == NULL)
return -ENOMEM;
if (phba->sli_rev < LPFC_SLI_REV4)
lpfc_unreg_login(phba, 0, rpi, mbox);
else
lpfc_unreg_login(phba, phba->pport->vpi,
phba->sli4_hba.rpi_ids[rpi], mbox);
status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
if (status != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
return -EIO;
}
mempool_free(mbox, phba->mbox_mem_pool);
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_free_rpi(phba, rpi);
return 0;
}
/**
* lpfcdiag_loop_get_xri - obtains the transmit and receive ids
* @phba: Pointer to HBA context object
* @rpi: Remote port login id
* @txxri: Pointer to transmit exchange id
* @rxxri: Pointer to response exchabge id
*
* This function obtains the transmit and receive ids required to send
* an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp
* flags are used to the unsolicited response handler is able to process
* the ct command sent on the same port.
**/
static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi,
uint16_t *txxri, uint16_t * rxxri)
{
struct lpfc_bsg_event *evt;
struct lpfc_iocbq *cmdiocbq, *rspiocbq;
struct lpfc_dmabuf *dmabuf;
struct ulp_bde64 *bpl = NULL;
struct lpfc_sli_ct_request *ctreq = NULL;
int ret_val = 0;
int time_left;
int iocb_stat = IOCB_SUCCESS;
unsigned long flags;
u32 status;
*txxri = 0;
*rxxri = 0;
evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
SLI_CT_ELX_LOOPBACK);
if (!evt)
return -ENOMEM;
spin_lock_irqsave(&phba->ct_ev_lock, flags);
list_add(&evt->node, &phba->ct_ev_waiters);
lpfc_bsg_event_ref(evt);
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
cmdiocbq = lpfc_sli_get_iocbq(phba);
rspiocbq = lpfc_sli_get_iocbq(phba);
dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (dmabuf) {
dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys);
if (dmabuf->virt) {
INIT_LIST_HEAD(&dmabuf->list);
bpl = (struct ulp_bde64 *) dmabuf->virt;
memset(bpl, 0, sizeof(*bpl));
ctreq = (struct lpfc_sli_ct_request *)(bpl + 1);
bpl->addrHigh =
le32_to_cpu(putPaddrHigh(dmabuf->phys +
sizeof(*bpl)));
bpl->addrLow =
le32_to_cpu(putPaddrLow(dmabuf->phys +
sizeof(*bpl)));
bpl->tus.f.bdeFlags = 0;
bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
}
}
if (cmdiocbq == NULL || rspiocbq == NULL ||
dmabuf == NULL || bpl == NULL || ctreq == NULL ||
dmabuf->virt == NULL) {
ret_val = -ENOMEM;
goto err_get_xri_exit;
}
memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
ctreq->RevisionId.bits.InId = 0;
ctreq->FsType = SLI_CT_ELX_LOOPBACK;
ctreq->FsSubType = 0;
ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP;
ctreq->CommandResponse.bits.Size = 0;
cmdiocbq->bpl_dmabuf = dmabuf;
cmdiocbq->cmd_flag |= LPFC_IO_LIBDFC;
cmdiocbq->vport = phba->pport;
cmdiocbq->cmd_cmpl = NULL;
lpfc_sli_prep_xmit_seq64(phba, cmdiocbq, dmabuf, rpi, 0, 1,
FC_RCTL_DD_SOL_CTL, 0, CMD_XMIT_SEQUENCE64_CR);
iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
rspiocbq, (phba->fc_ratov * 2)
+ LPFC_DRVR_TIMEOUT);
status = get_job_ulpstatus(phba, rspiocbq);
if (iocb_stat != IOCB_SUCCESS || status != IOCB_SUCCESS) {
ret_val = -EIO;
goto err_get_xri_exit;
}
*txxri = get_job_ulpcontext(phba, rspiocbq);
evt->waiting = 1;
evt->wait_time_stamp = jiffies;
time_left = wait_event_interruptible_timeout(
evt->wq, !list_empty(&evt->events_to_see),
msecs_to_jiffies(1000 *
((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
if (list_empty(&evt->events_to_see))
ret_val = (time_left) ? -EINTR : -ETIMEDOUT;
else {
spin_lock_irqsave(&phba->ct_ev_lock, flags);
list_move(evt->events_to_see.prev, &evt->events_to_get);
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
*rxxri = (list_entry(evt->events_to_get.prev,
typeof(struct event_data),
node))->immed_dat;
}
evt->waiting = 0;
err_get_xri_exit:
spin_lock_irqsave(&phba->ct_ev_lock, flags);
lpfc_bsg_event_unref(evt); /* release ref */
lpfc_bsg_event_unref(evt); /* delete */
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
if (dmabuf) {
if (dmabuf->virt)
lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
}
if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT))
lpfc_sli_release_iocbq(phba, cmdiocbq);
if (rspiocbq)
lpfc_sli_release_iocbq(phba, rspiocbq);
return ret_val;
}
/**
* lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers
* @phba: Pointer to HBA context object
*
* This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and
* returns the pointer to the buffer.
**/
static struct lpfc_dmabuf *
lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba)
{
struct lpfc_dmabuf *dmabuf;
struct pci_dev *pcidev = phba->pcidev;
/* allocate dma buffer struct */
dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!dmabuf)
return NULL;
INIT_LIST_HEAD(&dmabuf->list);
/* now, allocate dma buffer */
dmabuf->virt = dma_alloc_coherent(&pcidev->dev, BSG_MBOX_SIZE,
&(dmabuf->phys), GFP_KERNEL);
if (!dmabuf->virt) {
kfree(dmabuf);
return NULL;
}
return dmabuf;
}
/**
* lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer
* @phba: Pointer to HBA context object.
* @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor.
*
* This routine just simply frees a dma buffer and its associated buffer
* descriptor referred by @dmabuf.
**/
static void
lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf)
{
struct pci_dev *pcidev = phba->pcidev;
if (!dmabuf)
return;
if (dmabuf->virt)
dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE,
dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
return;
}
/**
* lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers
* @phba: Pointer to HBA context object.
* @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs.
*
* This routine just simply frees all dma buffers and their associated buffer
* descriptors referred by @dmabuf_list.
**/
static void
lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba,
struct list_head *dmabuf_list)
{
struct lpfc_dmabuf *dmabuf, *next_dmabuf;
if (list_empty(dmabuf_list))
return;
list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) {
list_del_init(&dmabuf->list);
lpfc_bsg_dma_page_free(phba, dmabuf);
}
return;
}
/**
* diag_cmd_data_alloc - fills in a bde struct with dma buffers
* @phba: Pointer to HBA context object
* @bpl: Pointer to 64 bit bde structure
* @size: Number of bytes to process
* @nocopydata: Flag to copy user data into the allocated buffer
*
* This function allocates page size buffers and populates an lpfc_dmabufext.
* If allowed the user data pointed to with indataptr is copied into the kernel
* memory. The chained list of page size buffers is returned.
**/
static struct lpfc_dmabufext *
diag_cmd_data_alloc(struct lpfc_hba *phba,
struct ulp_bde64 *bpl, uint32_t size,
int nocopydata)
{
struct lpfc_dmabufext *mlist = NULL;
struct lpfc_dmabufext *dmp;
int cnt, offset = 0, i = 0;
struct pci_dev *pcidev;
pcidev = phba->pcidev;
while (size) {
/* We get chunks of 4K */
if (size > BUF_SZ_4K)
cnt = BUF_SZ_4K;
else
cnt = size;
/* allocate struct lpfc_dmabufext buffer header */
dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL);
if (!dmp)
goto out;
INIT_LIST_HEAD(&dmp->dma.list);
/* Queue it to a linked list */
if (mlist)
list_add_tail(&dmp->dma.list, &mlist->dma.list);
else
mlist = dmp;
/* allocate buffer */
dmp->dma.virt = dma_alloc_coherent(&pcidev->dev,
cnt,
&(dmp->dma.phys),
GFP_KERNEL);
if (!dmp->dma.virt)
goto out;
dmp->size = cnt;
if (nocopydata) {
bpl->tus.f.bdeFlags = 0;
} else {
memset((uint8_t *)dmp->dma.virt, 0, cnt);
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
}
/* build buffer ptr list for IOCB */
bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys));
bpl->tus.f.bdeSize = (ushort) cnt;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
bpl++;
i++;
offset += cnt;
size -= cnt;
}
if (mlist) {
mlist->flag = i;
return mlist;
}
out:
diag_cmd_data_free(phba, mlist);
return NULL;
}
/**
* lpfcdiag_sli3_loop_post_rxbufs - post the receive buffers for an unsol CT cmd
* @phba: Pointer to HBA context object
* @rxxri: Receive exchange id
* @len: Number of data bytes
*
* This function allocates and posts a data buffer of sufficient size to receive
* an unsolicited CT command.
**/
static int lpfcdiag_sli3_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri,
size_t len)
{
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *cmdiocbq;
IOCB_t *cmd = NULL;
struct list_head head, *curr, *next;
struct lpfc_dmabuf *rxbmp;
struct lpfc_dmabuf *dmp;
struct lpfc_dmabuf *mp[2] = {NULL, NULL};
struct ulp_bde64 *rxbpl = NULL;
uint32_t num_bde;
struct lpfc_dmabufext *rxbuffer = NULL;
int ret_val = 0;
int iocb_stat;
int i = 0;
pring = lpfc_phba_elsring(phba);
cmdiocbq = lpfc_sli_get_iocbq(phba);
rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (rxbmp != NULL) {
rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys);
if (rxbmp->virt) {
INIT_LIST_HEAD(&rxbmp->list);
rxbpl = (struct ulp_bde64 *) rxbmp->virt;
rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0);
}
}
if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer || !pring) {
ret_val = -ENOMEM;
goto err_post_rxbufs_exit;
}
/* Queue buffers for the receive exchange */
num_bde = (uint32_t)rxbuffer->flag;
dmp = &rxbuffer->dma;
cmd = &cmdiocbq->iocb;
i = 0;
INIT_LIST_HEAD(&head);
list_add_tail(&head, &dmp->list);
list_for_each_safe(curr, next, &head) {
mp[i] = list_entry(curr, struct lpfc_dmabuf, list);
list_del(curr);
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba);
cmd->un.quexri64cx.buff.bde.addrHigh =
putPaddrHigh(mp[i]->phys);
cmd->un.quexri64cx.buff.bde.addrLow =
putPaddrLow(mp[i]->phys);
cmd->un.quexri64cx.buff.bde.tus.f.bdeSize =
((struct lpfc_dmabufext *)mp[i])->size;
cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag;
cmd->ulpCommand = CMD_QUE_XRI64_CX;
cmd->ulpPU = 0;
cmd->ulpLe = 1;
cmd->ulpBdeCount = 1;
cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0;
} else {
cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys);
cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys);
cmd->un.cont64[i].tus.f.bdeSize =
((struct lpfc_dmabufext *)mp[i])->size;
cmd->ulpBdeCount = ++i;
if ((--num_bde > 0) && (i < 2))
continue;
cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX;
cmd->ulpLe = 1;
}
cmd->ulpClass = CLASS3;
cmd->ulpContext = rxxri;
iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq,
0);
if (iocb_stat == IOCB_ERROR) {
diag_cmd_data_free(phba,
(struct lpfc_dmabufext *)mp[0]);
if (mp[1])
diag_cmd_data_free(phba,
(struct lpfc_dmabufext *)mp[1]);
dmp = list_entry(next, struct lpfc_dmabuf, list);
ret_val = -EIO;
goto err_post_rxbufs_exit;
}
lpfc_sli_ringpostbuf_put(phba, pring, mp[0]);
if (mp[1]) {
lpfc_sli_ringpostbuf_put(phba, pring, mp[1]);
mp[1] = NULL;
}
/* The iocb was freed by lpfc_sli_issue_iocb */
cmdiocbq = lpfc_sli_get_iocbq(phba);
if (!cmdiocbq) {
dmp = list_entry(next, struct lpfc_dmabuf, list);
ret_val = -EIO;
goto err_post_rxbufs_exit;
}
cmd = &cmdiocbq->iocb;
i = 0;
}
list_del(&head);
err_post_rxbufs_exit:
if (rxbmp) {
if (rxbmp->virt)
lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys);
kfree(rxbmp);
}
if (cmdiocbq)
lpfc_sli_release_iocbq(phba, cmdiocbq);
return ret_val;
}
/**
* lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself
* @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job
*
* This function receives a user data buffer to be transmitted and received on
* the same port, the link must be up and in loopback mode prior
* to being called.
* 1. A kernel buffer is allocated to copy the user data into.
* 2. The port registers with "itself".
* 3. The transmit and receive exchange ids are obtained.
* 4. The receive exchange id is posted.
* 5. A new els loopback event is created.
* 6. The command and response iocbs are allocated.
* 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback.
*
* This function is meant to be called n times while the port is in loopback
* so it is the apps responsibility to issue a reset to take the port out
* of loopback mode.
**/
static int
lpfc_bsg_diag_loopback_run(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct fc_bsg_reply *bsg_reply = job->reply;
struct lpfc_hba *phba = vport->phba;
struct lpfc_bsg_event *evt;
struct event_data *evdat;
struct lpfc_sli *psli = &phba->sli;
uint32_t size;
uint32_t full_size;
size_t segment_len = 0, segment_offset = 0, current_offset = 0;
uint16_t rpi = 0;
struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL;
union lpfc_wqe128 *cmdwqe, *rspwqe;
struct lpfc_sli_ct_request *ctreq;
struct lpfc_dmabuf *txbmp;
struct ulp_bde64 *txbpl = NULL;
struct lpfc_dmabufext *txbuffer = NULL;
struct list_head head;
struct lpfc_dmabuf *curr;
uint16_t txxri = 0, rxxri;
uint32_t num_bde;
uint8_t *ptr = NULL, *rx_databuf = NULL;
int rc = 0;
int time_left;
int iocb_stat = IOCB_SUCCESS;
unsigned long flags;
void *dataout = NULL;
uint32_t total_mem;
/* in case no data is returned return just the return code */
bsg_reply->reply_payload_rcv_len = 0;
if (job->request_len <
sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2739 Received DIAG TEST request below minimum "
"size\n");
rc = -EINVAL;
goto loopback_test_exit;
}
if (job->request_payload.payload_len !=
job->reply_payload.payload_len) {
rc = -EINVAL;
goto loopback_test_exit;
}
if ((phba->link_state == LPFC_HBA_ERROR) ||
(psli->sli_flag & LPFC_BLOCK_MGMT_IO) ||
(!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
rc = -EACCES;
goto loopback_test_exit;
}
if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) {
rc = -EACCES;
goto loopback_test_exit;
}
size = job->request_payload.payload_len;
full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */
if ((size == 0) || (size > 80 * BUF_SZ_4K)) {
rc = -ERANGE;
goto loopback_test_exit;
}
if (full_size >= BUF_SZ_4K) {
/*
* Allocate memory for ioctl data. If buffer is bigger than 64k,
* then we allocate 64k and re-use that buffer over and over to
* xfer the whole block. This is because Linux kernel has a
* problem allocating more than 120k of kernel space memory. Saw
* problem with GET_FCPTARGETMAPPING...
*/
if (size <= (64 * 1024))
total_mem = full_size;
else
total_mem = 64 * 1024;
} else
/* Allocate memory for ioctl data */
total_mem = BUF_SZ_4K;
dataout = kmalloc(total_mem, GFP_KERNEL);
if (dataout == NULL) {
rc = -ENOMEM;
goto loopback_test_exit;
}
ptr = dataout;
ptr += ELX_LOOPBACK_HEADER_SZ;
sg_copy_to_buffer(job->request_payload.sg_list,
job->request_payload.sg_cnt,
ptr, size);
rc = lpfcdiag_loop_self_reg(phba, &rpi);
if (rc)
goto loopback_test_exit;
if (phba->sli_rev < LPFC_SLI_REV4) {
rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
if (rc) {
lpfcdiag_loop_self_unreg(phba, rpi);
goto loopback_test_exit;
}
rc = lpfcdiag_sli3_loop_post_rxbufs(phba, rxxri, full_size);
if (rc) {
lpfcdiag_loop_self_unreg(phba, rpi);
goto loopback_test_exit;
}
}
evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
SLI_CT_ELX_LOOPBACK);
if (!evt) {
lpfcdiag_loop_self_unreg(phba, rpi);
rc = -ENOMEM;
goto loopback_test_exit;
}
spin_lock_irqsave(&phba->ct_ev_lock, flags);
list_add(&evt->node, &phba->ct_ev_waiters);
lpfc_bsg_event_ref(evt);
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
cmdiocbq = lpfc_sli_get_iocbq(phba);
if (phba->sli_rev < LPFC_SLI_REV4)
rspiocbq = lpfc_sli_get_iocbq(phba);
txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (txbmp) {
txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys);
if (txbmp->virt) {
INIT_LIST_HEAD(&txbmp->list);
txbpl = (struct ulp_bde64 *) txbmp->virt;
txbuffer = diag_cmd_data_alloc(phba,
txbpl, full_size, 0);
}
}
if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) {
rc = -ENOMEM;
goto err_loopback_test_exit;
}
if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) {
rc = -ENOMEM;
goto err_loopback_test_exit;
}
cmdwqe = &cmdiocbq->wqe;
memset(cmdwqe, 0, sizeof(union lpfc_wqe));
if (phba->sli_rev < LPFC_SLI_REV4) {
rspwqe = &rspiocbq->wqe;
memset(rspwqe, 0, sizeof(union lpfc_wqe));
}
INIT_LIST_HEAD(&head);
list_add_tail(&head, &txbuffer->dma.list);
list_for_each_entry(curr, &head, list) {
segment_len = ((struct lpfc_dmabufext *)curr)->size;
if (current_offset == 0) {
ctreq = curr->virt;
memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ);
ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
ctreq->RevisionId.bits.InId = 0;
ctreq->FsType = SLI_CT_ELX_LOOPBACK;
ctreq->FsSubType = 0;
ctreq->CommandResponse.bits.CmdRsp = cpu_to_be16(ELX_LOOPBACK_DATA);
ctreq->CommandResponse.bits.Size = cpu_to_be16(size);
segment_offset = ELX_LOOPBACK_HEADER_SZ;
} else
segment_offset = 0;
BUG_ON(segment_offset >= segment_len);
memcpy(curr->virt + segment_offset,
ptr + current_offset,
segment_len - segment_offset);
current_offset += segment_len - segment_offset;
BUG_ON(current_offset > size);
}
list_del(&head);
/* Build the XMIT_SEQUENCE iocb */
num_bde = (uint32_t)txbuffer->flag;
cmdiocbq->num_bdes = num_bde;
cmdiocbq->cmd_flag |= LPFC_IO_LIBDFC;
cmdiocbq->cmd_flag |= LPFC_IO_LOOPBACK;
cmdiocbq->vport = phba->pport;
cmdiocbq->cmd_cmpl = NULL;
cmdiocbq->bpl_dmabuf = txbmp;
if (phba->sli_rev < LPFC_SLI_REV4) {
lpfc_sli_prep_xmit_seq64(phba, cmdiocbq, txbmp, 0, txxri,
num_bde, FC_RCTL_DD_UNSOL_CTL, 1,
CMD_XMIT_SEQUENCE64_CX);
} else {
lpfc_sli_prep_xmit_seq64(phba, cmdiocbq, txbmp,
phba->sli4_hba.rpi_ids[rpi], 0xffff,
full_size, FC_RCTL_DD_UNSOL_CTL, 1,
CMD_XMIT_SEQUENCE64_WQE);
cmdiocbq->sli4_xritag = NO_XRI;
}
iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
rspiocbq, (phba->fc_ratov * 2) +
LPFC_DRVR_TIMEOUT);
if (iocb_stat != IOCB_SUCCESS ||
(phba->sli_rev < LPFC_SLI_REV4 &&
(get_job_ulpstatus(phba, rspiocbq) != IOSTAT_SUCCESS))) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"3126 Failed loopback test issue iocb: "
"iocb_stat:x%x\n", iocb_stat);
rc = -EIO;
goto err_loopback_test_exit;
}
evt->waiting = 1;
time_left = wait_event_interruptible_timeout(
evt->wq, !list_empty(&evt->events_to_see),
msecs_to_jiffies(1000 *
((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT)));
evt->waiting = 0;
if (list_empty(&evt->events_to_see)) {
rc = (time_left) ? -EINTR : -ETIMEDOUT;
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"3125 Not receiving unsolicited event, "
"rc:x%x\n", rc);
} else {
spin_lock_irqsave(&phba->ct_ev_lock, flags);
list_move(evt->events_to_see.prev, &evt->events_to_get);
evdat = list_entry(evt->events_to_get.prev,
typeof(*evdat), node);
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
rx_databuf = evdat->data;
if (evdat->len != full_size) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"1603 Loopback test did not receive expected "
"data length. actual length 0x%x expected "
"length 0x%x\n",
evdat->len, full_size);
rc = -EIO;
} else if (rx_databuf == NULL)
rc = -EIO;
else {
rc = IOCB_SUCCESS;
/* skip over elx loopback header */
rx_databuf += ELX_LOOPBACK_HEADER_SZ;
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt,
rx_databuf, size);
bsg_reply->reply_payload_rcv_len = size;
}
}
err_loopback_test_exit:
lpfcdiag_loop_self_unreg(phba, rpi);
spin_lock_irqsave(&phba->ct_ev_lock, flags);
lpfc_bsg_event_unref(evt); /* release ref */
lpfc_bsg_event_unref(evt); /* delete */
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT))
lpfc_sli_release_iocbq(phba, cmdiocbq);
if (rspiocbq != NULL)
lpfc_sli_release_iocbq(phba, rspiocbq);
if (txbmp != NULL) {
if (txbpl != NULL) {
if (txbuffer != NULL)
diag_cmd_data_free(phba, txbuffer);
lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys);
}
kfree(txbmp);
}
loopback_test_exit:
kfree(dataout);
/* make error code available to userspace */
bsg_reply->result = rc;
job->dd_data = NULL;
/* complete the job back to userspace if no error */
if (rc == IOCB_SUCCESS)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command
* @job: GET_DFC_REV fc_bsg_job
**/
static int
lpfc_bsg_get_dfc_rev(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct fc_bsg_reply *bsg_reply = job->reply;
struct lpfc_hba *phba = vport->phba;
struct get_mgmt_rev_reply *event_reply;
int rc = 0;
if (job->request_len <
sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2740 Received GET_DFC_REV request below "
"minimum size\n");
rc = -EINVAL;
goto job_error;
}
event_reply = (struct get_mgmt_rev_reply *)
bsg_reply->reply_data.vendor_reply.vendor_rsp;
if (job->reply_len < sizeof(*bsg_reply) + sizeof(*event_reply)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2741 Received GET_DFC_REV reply below "
"minimum size\n");
rc = -EINVAL;
goto job_error;
}
event_reply->info.a_Major = MANAGEMENT_MAJOR_REV;
event_reply->info.a_Minor = MANAGEMENT_MINOR_REV;
job_error:
bsg_reply->result = rc;
if (rc == 0)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler
* @phba: Pointer to HBA context object.
* @pmboxq: Pointer to mailbox command.
*
* This is completion handler function for mailbox commands issued from
* lpfc_bsg_issue_mbox function. This function is called by the
* mailbox event handler function with no lock held. This function
* will wake up thread waiting on the wait queue pointed by dd_data
* of the mailbox.
**/
static void
lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
struct bsg_job_data *dd_data;
struct fc_bsg_reply *bsg_reply;
struct bsg_job *job;
uint32_t size;
unsigned long flags;
uint8_t *pmb, *pmb_buf;
dd_data = pmboxq->ctx_ndlp;
/*
* The outgoing buffer is readily referred from the dma buffer,
* just need to get header part from mailboxq structure.
*/
pmb = (uint8_t *)&pmboxq->u.mb;
pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
/* Determine if job has been aborted */
spin_lock_irqsave(&phba->ct_ev_lock, flags);
job = dd_data->set_job;
if (job) {
/* Prevent timeout handling from trying to abort job */
job->dd_data = NULL;
}
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
/* Copy the mailbox data to the job if it is still active */
if (job) {
bsg_reply = job->reply;
size = job->reply_payload.payload_len;
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt,
pmb_buf, size);
}
dd_data->set_job = NULL;
mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool);
lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers);
kfree(dd_data);
/* Complete the job if the job is still active */
if (job) {
bsg_reply->result = 0;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return;
}
/**
* lpfc_bsg_check_cmd_access - test for a supported mailbox command
* @phba: Pointer to HBA context object.
* @mb: Pointer to a mailbox object.
* @vport: Pointer to a vport object.
*
* Some commands require the port to be offline, some may not be called from
* the application.
**/
static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba,
MAILBOX_t *mb, struct lpfc_vport *vport)
{
/* return negative error values for bsg job */
switch (mb->mbxCommand) {
/* Offline only */
case MBX_INIT_LINK:
case MBX_DOWN_LINK:
case MBX_CONFIG_LINK:
case MBX_CONFIG_RING:
case MBX_RESET_RING:
case MBX_UNREG_LOGIN:
case MBX_CLEAR_LA:
case MBX_DUMP_CONTEXT:
case MBX_RUN_DIAGS:
case MBX_RESTART:
case MBX_SET_MASK:
if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2743 Command 0x%x is illegal in on-line "
"state\n",
mb->mbxCommand);
return -EPERM;
}
break;
case MBX_WRITE_NV:
case MBX_WRITE_VPARMS:
case MBX_LOAD_SM:
case MBX_READ_NV:
case MBX_READ_CONFIG:
case MBX_READ_RCONFIG:
case MBX_READ_STATUS:
case MBX_READ_XRI:
case MBX_READ_REV:
case MBX_READ_LNK_STAT:
case MBX_DUMP_MEMORY:
case MBX_DOWN_LOAD:
case MBX_UPDATE_CFG:
case MBX_KILL_BOARD:
case MBX_READ_TOPOLOGY:
case MBX_LOAD_AREA:
case MBX_LOAD_EXP_ROM:
case MBX_BEACON:
case MBX_DEL_LD_ENTRY:
case MBX_SET_DEBUG:
case MBX_WRITE_WWN:
case MBX_SLI4_CONFIG:
case MBX_READ_EVENT_LOG:
case MBX_READ_EVENT_LOG_STATUS:
case MBX_WRITE_EVENT_LOG:
case MBX_PORT_CAPABILITIES:
case MBX_PORT_IOV_CONTROL:
case MBX_RUN_BIU_DIAG64:
break;
case MBX_SET_VARIABLE:
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"1226 mbox: set_variable 0x%x, 0x%x\n",
mb->un.varWords[0],
mb->un.varWords[1]);
break;
case MBX_READ_SPARM64:
case MBX_REG_LOGIN:
case MBX_REG_LOGIN64:
case MBX_CONFIG_PORT:
case MBX_RUN_BIU_DIAG:
default:
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2742 Unknown Command 0x%x\n",
mb->mbxCommand);
return -EPERM;
}
return 0; /* ok */
}
/**
* lpfc_bsg_mbox_ext_session_reset - clean up context of multi-buffer mbox session
* @phba: Pointer to HBA context object.
*
* This is routine clean up and reset BSG handling of multi-buffer mbox
* command session.
**/
static void
lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba)
{
if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE)
return;
/* free all memory, including dma buffers */
lpfc_bsg_dma_page_list_free(phba,
&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf);
/* multi-buffer write mailbox command pass-through complete */
memset((char *)&phba->mbox_ext_buf_ctx, 0,
sizeof(struct lpfc_mbox_ext_buf_ctx));
INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
return;
}
/**
* lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl
* @phba: Pointer to HBA context object.
* @pmboxq: Pointer to mailbox command.
*
* This is routine handles BSG job for mailbox commands completions with
* multiple external buffers.
**/
static struct bsg_job *
lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
struct bsg_job_data *dd_data;
struct bsg_job *job;
struct fc_bsg_reply *bsg_reply;
uint8_t *pmb, *pmb_buf;
unsigned long flags;
uint32_t size;
int rc = 0;
struct lpfc_dmabuf *dmabuf;
struct lpfc_sli_config_mbox *sli_cfg_mbx;
uint8_t *pmbx;
dd_data = pmboxq->ctx_buf;
/* Determine if job has been aborted */
spin_lock_irqsave(&phba->ct_ev_lock, flags);
job = dd_data->set_job;
if (job) {
bsg_reply = job->reply;
/* Prevent timeout handling from trying to abort job */
job->dd_data = NULL;
}
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
/*
* The outgoing buffer is readily referred from the dma buffer,
* just need to get header part from mailboxq structure.
*/
pmb = (uint8_t *)&pmboxq->u.mb;
pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
/* Copy the byte swapped response mailbox back to the user */
memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
/* if there is any non-embedded extended data copy that too */
dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf;
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
if (!bsg_bf_get(lpfc_mbox_hdr_emb,
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
pmbx = (uint8_t *)dmabuf->virt;
/* byte swap the extended data following the mailbox command */
lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
&pmbx[sizeof(MAILBOX_t)],
sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len);
}
/* Complete the job if the job is still active */
if (job) {
size = job->reply_payload.payload_len;
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt,
pmb_buf, size);
/* result for successful */
bsg_reply->result = 0;
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2937 SLI_CONFIG ext-buffer mailbox command "
"(x%x/x%x) complete bsg job done, bsize:%d\n",
phba->mbox_ext_buf_ctx.nembType,
phba->mbox_ext_buf_ctx.mboxType, size);
lpfc_idiag_mbxacc_dump_bsg_mbox(phba,
phba->mbox_ext_buf_ctx.nembType,
phba->mbox_ext_buf_ctx.mboxType,
dma_ebuf, sta_pos_addr,
phba->mbox_ext_buf_ctx.mbx_dmabuf, 0);
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2938 SLI_CONFIG ext-buffer mailbox "
"command (x%x/x%x) failure, rc:x%x\n",
phba->mbox_ext_buf_ctx.nembType,
phba->mbox_ext_buf_ctx.mboxType, rc);
}
/* state change */
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE;
kfree(dd_data);
return job;
}
/**
* lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox
* @phba: Pointer to HBA context object.
* @pmboxq: Pointer to mailbox command.
*
* This is completion handler function for mailbox read commands with multiple
* external buffers.
**/
static void
lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
struct bsg_job *job;
struct fc_bsg_reply *bsg_reply;
job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
/* handle the BSG job with mailbox command */
if (!job)
pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2939 SLI_CONFIG ext-buffer rd mailbox command "
"complete, ctxState:x%x, mbxStatus:x%x\n",
phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1)
lpfc_bsg_mbox_ext_session_reset(phba);
/* free base driver mailbox structure memory */
mempool_free(pmboxq, phba->mbox_mem_pool);
/* if the job is still active, call job done */
if (job) {
bsg_reply = job->reply;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return;
}
/**
* lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox
* @phba: Pointer to HBA context object.
* @pmboxq: Pointer to mailbox command.
*
* This is completion handler function for mailbox write commands with multiple
* external buffers.
**/
static void
lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
struct bsg_job *job;
struct fc_bsg_reply *bsg_reply;
job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq);
/* handle the BSG job with the mailbox command */
if (!job)
pmboxq->u.mb.mbxStatus = MBXERR_ERROR;
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2940 SLI_CONFIG ext-buffer wr mailbox command "
"complete, ctxState:x%x, mbxStatus:x%x\n",
phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus);
/* free all memory, including dma buffers */
mempool_free(pmboxq, phba->mbox_mem_pool);
lpfc_bsg_mbox_ext_session_reset(phba);
/* if the job is still active, call job done */
if (job) {
bsg_reply = job->reply;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
}
return;
}
static void
lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp,
uint32_t index, struct lpfc_dmabuf *mbx_dmabuf,
struct lpfc_dmabuf *ext_dmabuf)
{
struct lpfc_sli_config_mbox *sli_cfg_mbx;
/* pointer to the start of mailbox command */
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt;
if (nemb_tp == nemb_mse) {
if (index == 0) {
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].pa_hi =
putPaddrHigh(mbx_dmabuf->phys +
sizeof(MAILBOX_t));
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].pa_lo =
putPaddrLow(mbx_dmabuf->phys +
sizeof(MAILBOX_t));
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2943 SLI_CONFIG(mse)[%d], "
"bufLen:%d, addrHi:x%x, addrLo:x%x\n",
index,
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].buf_len,
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].pa_hi,
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].pa_lo);
} else {
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].pa_hi =
putPaddrHigh(ext_dmabuf->phys);
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].pa_lo =
putPaddrLow(ext_dmabuf->phys);
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2944 SLI_CONFIG(mse)[%d], "
"bufLen:%d, addrHi:x%x, addrLo:x%x\n",
index,
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].buf_len,
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].pa_hi,
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[index].pa_lo);
}
} else {
if (index == 0) {
sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[index].pa_hi =
putPaddrHigh(mbx_dmabuf->phys +
sizeof(MAILBOX_t));
sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[index].pa_lo =
putPaddrLow(mbx_dmabuf->phys +
sizeof(MAILBOX_t));
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3007 SLI_CONFIG(hbd)[%d], "
"bufLen:%d, addrHi:x%x, addrLo:x%x\n",
index,
bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
&sli_cfg_mbx->un.
sli_config_emb1_subsys.hbd[index]),
sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[index].pa_hi,
sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[index].pa_lo);
} else {
sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[index].pa_hi =
putPaddrHigh(ext_dmabuf->phys);
sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[index].pa_lo =
putPaddrLow(ext_dmabuf->phys);
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3008 SLI_CONFIG(hbd)[%d], "
"bufLen:%d, addrHi:x%x, addrLo:x%x\n",
index,
bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
&sli_cfg_mbx->un.
sli_config_emb1_subsys.hbd[index]),
sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[index].pa_hi,
sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[index].pa_lo);
}
}
return;
}
/**
* lpfc_bsg_sli_cfg_read_cmd_ext - sli_config non-embedded mailbox cmd read
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
* @nemb_tp: Enumerate of non-embedded mailbox command type.
* @dmabuf: Pointer to a DMA buffer descriptor.
*
* This routine performs SLI_CONFIG (0x9B) read mailbox command operation with
* non-embedded external buffers.
**/
static int
lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct bsg_job *job,
enum nemb_type nemb_tp,
struct lpfc_dmabuf *dmabuf)
{
struct fc_bsg_request *bsg_request = job->request;
struct lpfc_sli_config_mbox *sli_cfg_mbx;
struct dfc_mbox_req *mbox_req;
struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf;
uint32_t ext_buf_cnt, ext_buf_index;
struct lpfc_dmabuf *ext_dmabuf = NULL;
struct bsg_job_data *dd_data = NULL;
LPFC_MBOXQ_t *pmboxq = NULL;
MAILBOX_t *pmb;
uint8_t *pmbx;
int rc, i;
mbox_req =
(struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
/* pointer to the start of mailbox command */
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
if (nemb_tp == nemb_mse) {
ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2945 Handled SLI_CONFIG(mse) rd, "
"ext_buf_cnt(%d) out of range(%d)\n",
ext_buf_cnt,
LPFC_MBX_SLI_CONFIG_MAX_MSE);
rc = -ERANGE;
goto job_error;
}
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2941 Handled SLI_CONFIG(mse) rd, "
"ext_buf_cnt:%d\n", ext_buf_cnt);
} else {
/* sanity check on interface type for support */
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2) {
rc = -ENODEV;
goto job_error;
}
/* nemb_tp == nemb_hbd */
ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2946 Handled SLI_CONFIG(hbd) rd, "
"ext_buf_cnt(%d) out of range(%d)\n",
ext_buf_cnt,
LPFC_MBX_SLI_CONFIG_MAX_HBD);
rc = -ERANGE;
goto job_error;
}
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2942 Handled SLI_CONFIG(hbd) rd, "
"ext_buf_cnt:%d\n", ext_buf_cnt);
}
/* before dma descriptor setup */
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
sta_pre_addr, dmabuf, ext_buf_cnt);
/* reject non-embedded mailbox command with none external buffer */
if (ext_buf_cnt == 0) {
rc = -EPERM;
goto job_error;
} else if (ext_buf_cnt > 1) {
/* additional external read buffers */
for (i = 1; i < ext_buf_cnt; i++) {
ext_dmabuf = lpfc_bsg_dma_page_alloc(phba);
if (!ext_dmabuf) {
rc = -ENOMEM;
goto job_error;
}
list_add_tail(&ext_dmabuf->list,
&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
}
}
/* bsg tracking structure */
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
if (!dd_data) {
rc = -ENOMEM;
goto job_error;
}
/* mailbox command structure for base driver */
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq) {
rc = -ENOMEM;
goto job_error;
}
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
/* for the first external buffer */
lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
/* for the rest of external buffer descriptors if any */
if (ext_buf_cnt > 1) {
ext_buf_index = 1;
list_for_each_entry_safe(curr_dmabuf, next_dmabuf,
&phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) {
lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp,
ext_buf_index, dmabuf,
curr_dmabuf);
ext_buf_index++;
}
}
/* after dma descriptor setup */
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox,
sta_pos_addr, dmabuf, ext_buf_cnt);
/* construct base driver mbox command */
pmb = &pmboxq->u.mb;
pmbx = (uint8_t *)dmabuf->virt;
memcpy(pmb, pmbx, sizeof(*pmb));
pmb->mbxOwner = OWN_HOST;
pmboxq->vport = phba->pport;
/* multi-buffer handling context */
phba->mbox_ext_buf_ctx.nembType = nemb_tp;
phba->mbox_ext_buf_ctx.mboxType = mbox_rd;
phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
/* callback for multi-buffer read mailbox command */
pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl;
/* context fields to callback function */
pmboxq->ctx_buf = dd_data;
dd_data->type = TYPE_MBOX;
dd_data->set_job = job;
dd_data->context_un.mbox.pmboxq = pmboxq;
dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
job->dd_data = dd_data;
/* state change */
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
/*
* Non-embedded mailbox subcommand data gets byte swapped here because
* the lower level driver code only does the first 64 mailbox words.
*/
if ((!bsg_bf_get(lpfc_mbox_hdr_emb,
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) &&
(nemb_tp == nemb_mse))
lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
&pmbx[sizeof(MAILBOX_t)],
sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[0].buf_len);
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2947 Issued SLI_CONFIG ext-buffer "
"mailbox command, rc:x%x\n", rc);
return SLI_CONFIG_HANDLED;
}
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2948 Failed to issue SLI_CONFIG ext-buffer "
"mailbox command, rc:x%x\n", rc);
rc = -EPIPE;
job_error:
if (pmboxq)
mempool_free(pmboxq, phba->mbox_mem_pool);
lpfc_bsg_dma_page_list_free(phba,
&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
kfree(dd_data);
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
return rc;
}
/**
* lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
* @nemb_tp: Enumerate of non-embedded mailbox command type.
* @dmabuf: Pointer to a DMA buffer descriptor.
*
* This routine performs SLI_CONFIG (0x9B) write mailbox command operation with
* non-embedded external buffers.
**/
static int
lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct bsg_job *job,
enum nemb_type nemb_tp,
struct lpfc_dmabuf *dmabuf)
{
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct dfc_mbox_req *mbox_req;
struct lpfc_sli_config_mbox *sli_cfg_mbx;
uint32_t ext_buf_cnt;
struct bsg_job_data *dd_data = NULL;
LPFC_MBOXQ_t *pmboxq = NULL;
MAILBOX_t *pmb;
uint8_t *mbx;
int rc = SLI_CONFIG_NOT_HANDLED, i;
mbox_req =
(struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
/* pointer to the start of mailbox command */
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
if (nemb_tp == nemb_mse) {
ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt,
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2953 Failed SLI_CONFIG(mse) wr, "
"ext_buf_cnt(%d) out of range(%d)\n",
ext_buf_cnt,
LPFC_MBX_SLI_CONFIG_MAX_MSE);
return -ERANGE;
}
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2949 Handled SLI_CONFIG(mse) wr, "
"ext_buf_cnt:%d\n", ext_buf_cnt);
} else {
/* sanity check on interface type for support */
if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
LPFC_SLI_INTF_IF_TYPE_2)
return -ENODEV;
/* nemb_tp == nemb_hbd */
ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2954 Failed SLI_CONFIG(hbd) wr, "
"ext_buf_cnt(%d) out of range(%d)\n",
ext_buf_cnt,
LPFC_MBX_SLI_CONFIG_MAX_HBD);
return -ERANGE;
}
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2950 Handled SLI_CONFIG(hbd) wr, "
"ext_buf_cnt:%d\n", ext_buf_cnt);
}
/* before dma buffer descriptor setup */
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
sta_pre_addr, dmabuf, ext_buf_cnt);
if (ext_buf_cnt == 0)
return -EPERM;
/* for the first external buffer */
lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf);
/* after dma descriptor setup */
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox,
sta_pos_addr, dmabuf, ext_buf_cnt);
/* log for looking forward */
for (i = 1; i < ext_buf_cnt; i++) {
if (nemb_tp == nemb_mse)
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2951 SLI_CONFIG(mse), buf[%d]-length:%d\n",
i, sli_cfg_mbx->un.sli_config_emb0_subsys.
mse[i].buf_len);
else
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n",
i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
&sli_cfg_mbx->un.sli_config_emb1_subsys.
hbd[i]));
}
/* multi-buffer handling context */
phba->mbox_ext_buf_ctx.nembType = nemb_tp;
phba->mbox_ext_buf_ctx.mboxType = mbox_wr;
phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt;
phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag;
phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum;
phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf;
if (ext_buf_cnt == 1) {
/* bsg tracking structure */
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
if (!dd_data) {
rc = -ENOMEM;
goto job_error;
}
/* mailbox command structure for base driver */
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq) {
rc = -ENOMEM;
goto job_error;
}
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
pmb = &pmboxq->u.mb;
mbx = (uint8_t *)dmabuf->virt;
memcpy(pmb, mbx, sizeof(*pmb));
pmb->mbxOwner = OWN_HOST;
pmboxq->vport = phba->pport;
/* callback for multi-buffer read mailbox command */
pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
/* context fields to callback function */
pmboxq->ctx_buf = dd_data;
dd_data->type = TYPE_MBOX;
dd_data->set_job = job;
dd_data->context_un.mbox.pmboxq = pmboxq;
dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx;
job->dd_data = dd_data;
/* state change */
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2955 Issued SLI_CONFIG ext-buffer "
"mailbox command, rc:x%x\n", rc);
return SLI_CONFIG_HANDLED;
}
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2956 Failed to issue SLI_CONFIG ext-buffer "
"mailbox command, rc:x%x\n", rc);
rc = -EPIPE;
goto job_error;
}
/* wait for additional external buffers */
bsg_reply->result = 0;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return SLI_CONFIG_HANDLED;
job_error:
if (pmboxq)
mempool_free(pmboxq, phba->mbox_mem_pool);
kfree(dd_data);
return rc;
}
/**
* lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
* @dmabuf: Pointer to a DMA buffer descriptor.
*
* This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded
* external buffers, including both 0x9B with non-embedded MSEs and 0x9B
* with embedded subsystem 0x1 and opcodes with external HBDs.
**/
static int
lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct bsg_job *job,
struct lpfc_dmabuf *dmabuf)
{
struct lpfc_sli_config_mbox *sli_cfg_mbx;
uint32_t subsys;
uint32_t opcode;
int rc = SLI_CONFIG_NOT_HANDLED;
/* state change on new multi-buffer pass-through mailbox command */
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST;
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
if (!bsg_bf_get(lpfc_mbox_hdr_emb,
&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys,
&sli_cfg_mbx->un.sli_config_emb0_subsys);
opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode,
&sli_cfg_mbx->un.sli_config_emb0_subsys);
if (subsys == SLI_CONFIG_SUBSYS_FCOE) {
switch (opcode) {
case FCOE_OPCODE_READ_FCF:
case FCOE_OPCODE_GET_DPORT_RESULTS:
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2957 Handled SLI_CONFIG "
"subsys_fcoe, opcode:x%x\n",
opcode);
rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
nemb_mse, dmabuf);
break;
case FCOE_OPCODE_ADD_FCF:
case FCOE_OPCODE_SET_DPORT_MODE:
case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE:
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2958 Handled SLI_CONFIG "
"subsys_fcoe, opcode:x%x\n",
opcode);
rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
nemb_mse, dmabuf);
break;
default:
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2959 Reject SLI_CONFIG "
"subsys_fcoe, opcode:x%x\n",
opcode);
rc = -EPERM;
break;
}
} else if (subsys == SLI_CONFIG_SUBSYS_COMN) {
switch (opcode) {
case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES:
case COMN_OPCODE_GET_CNTL_ATTRIBUTES:
case COMN_OPCODE_GET_PROFILE_CONFIG:
case COMN_OPCODE_SET_FEATURES:
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3106 Handled SLI_CONFIG "
"subsys_comn, opcode:x%x\n",
opcode);
rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
nemb_mse, dmabuf);
break;
default:
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"3107 Reject SLI_CONFIG "
"subsys_comn, opcode:x%x\n",
opcode);
rc = -EPERM;
break;
}
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2977 Reject SLI_CONFIG "
"subsys:x%d, opcode:x%x\n",
subsys, opcode);
rc = -EPERM;
}
} else {
subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys,
&sli_cfg_mbx->un.sli_config_emb1_subsys);
opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode,
&sli_cfg_mbx->un.sli_config_emb1_subsys);
if (subsys == SLI_CONFIG_SUBSYS_COMN) {
switch (opcode) {
case COMN_OPCODE_READ_OBJECT:
case COMN_OPCODE_READ_OBJECT_LIST:
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2960 Handled SLI_CONFIG "
"subsys_comn, opcode:x%x\n",
opcode);
rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
nemb_hbd, dmabuf);
break;
case COMN_OPCODE_WRITE_OBJECT:
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2961 Handled SLI_CONFIG "
"subsys_comn, opcode:x%x\n",
opcode);
rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job,
nemb_hbd, dmabuf);
break;
default:
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2962 Not handled SLI_CONFIG "
"subsys_comn, opcode:x%x\n",
opcode);
rc = SLI_CONFIG_NOT_HANDLED;
break;
}
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2978 Not handled SLI_CONFIG "
"subsys:x%d, opcode:x%x\n",
subsys, opcode);
rc = SLI_CONFIG_NOT_HANDLED;
}
}
/* state reset on not handled new multi-buffer mailbox command */
if (rc != SLI_CONFIG_HANDLED)
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
return rc;
}
/**
* lpfc_bsg_mbox_ext_abort - request to abort mbox command with ext buffers
* @phba: Pointer to HBA context object.
*
* This routine is for requesting to abort a pass-through mailbox command with
* multiple external buffers due to error condition.
**/
static void
lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba)
{
if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
else
lpfc_bsg_mbox_ext_session_reset(phba);
return;
}
/**
* lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
*
* This routine extracts the next mailbox read external buffer back to
* user space through BSG.
**/
static int
lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct bsg_job *job)
{
struct fc_bsg_reply *bsg_reply = job->reply;
struct lpfc_sli_config_mbox *sli_cfg_mbx;
struct lpfc_dmabuf *dmabuf;
uint8_t *pbuf;
uint32_t size;
uint32_t index;
index = phba->mbox_ext_buf_ctx.seqNum;
phba->mbox_ext_buf_ctx.seqNum++;
sli_cfg_mbx = (struct lpfc_sli_config_mbox *)
phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
size = bsg_bf_get(lpfc_mbox_sli_config_mse_len,
&sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]);
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2963 SLI_CONFIG (mse) ext-buffer rd get "
"buffer[%d], size:%d\n", index, size);
} else {
size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len,
&sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]);
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2964 SLI_CONFIG (hbd) ext-buffer rd get "
"buffer[%d], size:%d\n", index, size);
}
if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list))
return -EPIPE;
dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list,
struct lpfc_dmabuf, list);
list_del_init(&dmabuf->list);
/* after dma buffer descriptor setup */
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
mbox_rd, dma_ebuf, sta_pos_addr,
dmabuf, index);
pbuf = (uint8_t *)dmabuf->virt;
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt,
pbuf, size);
lpfc_bsg_dma_page_free(phba, dmabuf);
if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2965 SLI_CONFIG (hbd) ext-buffer rd mbox "
"command session done\n");
lpfc_bsg_mbox_ext_session_reset(phba);
}
bsg_reply->result = 0;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return SLI_CONFIG_HANDLED;
}
/**
* lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
* @dmabuf: Pointer to a DMA buffer descriptor.
*
* This routine sets up the next mailbox read external buffer obtained
* from user space through BSG.
**/
static int
lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct bsg_job *job,
struct lpfc_dmabuf *dmabuf)
{
struct fc_bsg_reply *bsg_reply = job->reply;
struct bsg_job_data *dd_data = NULL;
LPFC_MBOXQ_t *pmboxq = NULL;
MAILBOX_t *pmb;
enum nemb_type nemb_tp;
uint8_t *pbuf;
uint32_t size;
uint32_t index;
int rc;
index = phba->mbox_ext_buf_ctx.seqNum;
phba->mbox_ext_buf_ctx.seqNum++;
nemb_tp = phba->mbox_ext_buf_ctx.nembType;
pbuf = (uint8_t *)dmabuf->virt;
size = job->request_payload.payload_len;
sg_copy_to_buffer(job->request_payload.sg_list,
job->request_payload.sg_cnt,
pbuf, size);
if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2966 SLI_CONFIG (mse) ext-buffer wr set "
"buffer[%d], size:%d\n",
phba->mbox_ext_buf_ctx.seqNum, size);
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2967 SLI_CONFIG (hbd) ext-buffer wr set "
"buffer[%d], size:%d\n",
phba->mbox_ext_buf_ctx.seqNum, size);
}
/* set up external buffer descriptor and add to external buffer list */
lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index,
phba->mbox_ext_buf_ctx.mbx_dmabuf,
dmabuf);
list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
/* after write dma buffer */
lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType,
mbox_wr, dma_ebuf, sta_pos_addr,
dmabuf, index);
if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2968 SLI_CONFIG ext-buffer wr all %d "
"ebuffers received\n",
phba->mbox_ext_buf_ctx.numBuf);
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
if (!dd_data) {
rc = -ENOMEM;
goto job_error;
}
/* mailbox command structure for base driver */
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq) {
rc = -ENOMEM;
goto job_error;
}
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt;
pmb = &pmboxq->u.mb;
memcpy(pmb, pbuf, sizeof(*pmb));
pmb->mbxOwner = OWN_HOST;
pmboxq->vport = phba->pport;
/* callback for multi-buffer write mailbox command */
pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl;
/* context fields to callback function */
pmboxq->ctx_buf = dd_data;
dd_data->type = TYPE_MBOX;
dd_data->set_job = job;
dd_data->context_un.mbox.pmboxq = pmboxq;
dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf;
job->dd_data = dd_data;
/* state change */
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2969 Issued SLI_CONFIG ext-buffer "
"mailbox command, rc:x%x\n", rc);
return SLI_CONFIG_HANDLED;
}
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2970 Failed to issue SLI_CONFIG ext-buffer "
"mailbox command, rc:x%x\n", rc);
rc = -EPIPE;
goto job_error;
}
/* wait for additional external buffers */
bsg_reply->result = 0;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return SLI_CONFIG_HANDLED;
job_error:
if (pmboxq)
mempool_free(pmboxq, phba->mbox_mem_pool);
lpfc_bsg_dma_page_free(phba, dmabuf);
kfree(dd_data);
return rc;
}
/**
* lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
* @dmabuf: Pointer to a DMA buffer descriptor.
*
* This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox
* command with multiple non-embedded external buffers.
**/
static int
lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct bsg_job *job,
struct lpfc_dmabuf *dmabuf)
{
int rc;
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2971 SLI_CONFIG buffer (type:x%x)\n",
phba->mbox_ext_buf_ctx.mboxType);
if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) {
if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2972 SLI_CONFIG rd buffer state "
"mismatch:x%x\n",
phba->mbox_ext_buf_ctx.state);
lpfc_bsg_mbox_ext_abort(phba);
return -EPIPE;
}
rc = lpfc_bsg_read_ebuf_get(phba, job);
if (rc == SLI_CONFIG_HANDLED)
lpfc_bsg_dma_page_free(phba, dmabuf);
} else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */
if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2973 SLI_CONFIG wr buffer state "
"mismatch:x%x\n",
phba->mbox_ext_buf_ctx.state);
lpfc_bsg_mbox_ext_abort(phba);
return -EPIPE;
}
rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf);
}
return rc;
}
/**
* lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
* @dmabuf: Pointer to a DMA buffer descriptor.
*
* This routine checks and handles non-embedded multi-buffer SLI_CONFIG
* (0x9B) mailbox commands and external buffers.
**/
static int
lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct bsg_job *job,
struct lpfc_dmabuf *dmabuf)
{
struct fc_bsg_request *bsg_request = job->request;
struct dfc_mbox_req *mbox_req;
int rc = SLI_CONFIG_NOT_HANDLED;
mbox_req =
(struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
/* mbox command with/without single external buffer */
if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0)
return rc;
/* mbox command and first external buffer */
if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) {
if (mbox_req->extSeqNum == 1) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2974 SLI_CONFIG mailbox: tag:%d, "
"seq:%d\n", mbox_req->extMboxTag,
mbox_req->extSeqNum);
rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf);
return rc;
} else
goto sli_cfg_ext_error;
}
/*
* handle additional external buffers
*/
/* check broken pipe conditions */
if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag)
goto sli_cfg_ext_error;
if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf)
goto sli_cfg_ext_error;
if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1)
goto sli_cfg_ext_error;
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2975 SLI_CONFIG mailbox external buffer: "
"extSta:x%x, tag:%d, seq:%d\n",
phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag,
mbox_req->extSeqNum);
rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf);
return rc;
sli_cfg_ext_error:
/* all other cases, broken pipe */
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2976 SLI_CONFIG mailbox broken pipe: "
"ctxSta:x%x, ctxNumBuf:%d "
"ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n",
phba->mbox_ext_buf_ctx.state,
phba->mbox_ext_buf_ctx.numBuf,
phba->mbox_ext_buf_ctx.mbxTag,
phba->mbox_ext_buf_ctx.seqNum,
mbox_req->extMboxTag, mbox_req->extSeqNum);
lpfc_bsg_mbox_ext_session_reset(phba);
return -EPIPE;
}
/**
* lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app
* @phba: Pointer to HBA context object.
* @job: Pointer to the job object.
* @vport: Pointer to a vport object.
*
* Allocate a tracking object, mailbox command memory, get a mailbox
* from the mailbox pool, copy the caller mailbox command.
*
* If offline and the sli is active we need to poll for the command (port is
* being reset) and complete the job, otherwise issue the mailbox command and
* let our completion handler finish the command.
**/
static int
lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct bsg_job *job,
struct lpfc_vport *vport)
{
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */
MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */
/* a 4k buffer to hold the mb and extended data from/to the bsg */
uint8_t *pmbx = NULL;
struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */
struct lpfc_dmabuf *dmabuf = NULL;
struct dfc_mbox_req *mbox_req;
struct READ_EVENT_LOG_VAR *rdEventLog;
uint32_t transmit_length, receive_length, mode;
struct lpfc_mbx_sli4_config *sli4_config;
struct lpfc_mbx_nembed_cmd *nembed_sge;
struct ulp_bde64 *bde;
uint8_t *ext = NULL;
int rc = 0;
uint8_t *from;
uint32_t size;
/* in case no data is transferred */
bsg_reply->reply_payload_rcv_len = 0;
/* sanity check to protect driver */
if (job->reply_payload.payload_len > BSG_MBOX_SIZE ||
job->request_payload.payload_len > BSG_MBOX_SIZE) {
rc = -ERANGE;
goto job_done;
}
/*
* Don't allow mailbox commands to be sent when blocked or when in
* the middle of discovery
*/
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
rc = -EAGAIN;
goto job_done;
}
mbox_req =
(struct dfc_mbox_req *)bsg_request->rqst_data.h_vendor.vendor_cmd;
/* check if requested extended data lengths are valid */
if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) ||
(mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) {
rc = -ERANGE;
goto job_done;
}
dmabuf = lpfc_bsg_dma_page_alloc(phba);
if (!dmabuf || !dmabuf->virt) {
rc = -ENOMEM;
goto job_done;
}
/* Get the mailbox command or external buffer from BSG */
pmbx = (uint8_t *)dmabuf->virt;
size = job->request_payload.payload_len;
sg_copy_to_buffer(job->request_payload.sg_list,
job->request_payload.sg_cnt, pmbx, size);
/* Handle possible SLI_CONFIG with non-embedded payloads */
if (phba->sli_rev == LPFC_SLI_REV4) {
rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf);
if (rc == SLI_CONFIG_HANDLED)
goto job_cont;
if (rc)
goto job_done;
/* SLI_CONFIG_NOT_HANDLED for other mailbox commands */
}
rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport);
if (rc != 0)
goto job_done; /* must be negative */
/* allocate our bsg tracking structure */
dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL);
if (!dd_data) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2727 Failed allocation of dd_data\n");
rc = -ENOMEM;
goto job_done;
}
pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmboxq) {
rc = -ENOMEM;
goto job_done;
}
memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
pmb = &pmboxq->u.mb;
memcpy(pmb, pmbx, sizeof(*pmb));
pmb->mbxOwner = OWN_HOST;
pmboxq->vport = vport;
/* If HBA encountered an error attention, allow only DUMP
* or RESTART mailbox commands until the HBA is restarted.
*/
if (phba->pport->stopped &&
pmb->mbxCommand != MBX_DUMP_MEMORY &&
pmb->mbxCommand != MBX_RESTART &&
pmb->mbxCommand != MBX_WRITE_VPARMS &&
pmb->mbxCommand != MBX_WRITE_WWN)
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"2797 mbox: Issued mailbox cmd "
"0x%x while in stopped state.\n",
pmb->mbxCommand);
/* extended mailbox commands will need an extended buffer */
if (mbox_req->inExtWLen || mbox_req->outExtWLen) {
from = pmbx;
ext = from + sizeof(MAILBOX_t);
pmboxq->ctx_buf = ext;
pmboxq->in_ext_byte_len =
mbox_req->inExtWLen * sizeof(uint32_t);
pmboxq->out_ext_byte_len =
mbox_req->outExtWLen * sizeof(uint32_t);
pmboxq->mbox_offset_word = mbox_req->mbOffset;
}
/* biu diag will need a kernel buffer to transfer the data
* allocate our own buffer and setup the mailbox command to
* use ours
*/
if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) {
transmit_length = pmb->un.varWords[1];
receive_length = pmb->un.varWords[4];
/* transmit length cannot be greater than receive length or
* mailbox extension size
*/
if ((transmit_length > receive_length) ||
(transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
rc = -ERANGE;
goto job_done;
}
pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh =
putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t));
pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow =
putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t));
pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh =
putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)
+ pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow =
putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)
+ pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize);
} else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) {
rdEventLog = &pmb->un.varRdEventLog;
receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize;
mode = bf_get(lpfc_event_log, rdEventLog);
/* receive length cannot be greater than mailbox
* extension size
*/
if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
rc = -ERANGE;
goto job_done;
}
/* mode zero uses a bde like biu diags command */
if (mode == 0) {
pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
+ sizeof(MAILBOX_t));
pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
+ sizeof(MAILBOX_t));
}
} else if (phba->sli_rev == LPFC_SLI_REV4) {
/* Let type 4 (well known data) through because the data is
* returned in varwords[4-8]
* otherwise check the recieve length and fetch the buffer addr
*/
if ((pmb->mbxCommand == MBX_DUMP_MEMORY) &&
(pmb->un.varDmp.type != DMP_WELL_KNOWN)) {
/* rebuild the command for sli4 using our own buffers
* like we do for biu diags
*/
receive_length = pmb->un.varWords[2];
/* receive length cannot be greater than mailbox
* extension size
*/
if (receive_length == 0) {
rc = -ERANGE;
goto job_done;
}
pmb->un.varWords[3] = putPaddrLow(dmabuf->phys
+ sizeof(MAILBOX_t));
pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys
+ sizeof(MAILBOX_t));
} else if ((pmb->mbxCommand == MBX_UPDATE_CFG) &&
pmb->un.varUpdateCfg.co) {
bde = (struct ulp_bde64 *)&pmb->un.varWords[4];
/* bde size cannot be greater than mailbox ext size */
if (bde->tus.f.bdeSize >
BSG_MBOX_SIZE - sizeof(MAILBOX_t)) {
rc = -ERANGE;
goto job_done;
}
bde->addrHigh = putPaddrHigh(dmabuf->phys
+ sizeof(MAILBOX_t));
bde->addrLow = putPaddrLow(dmabuf->phys
+ sizeof(MAILBOX_t));
} else if (pmb->mbxCommand == MBX_SLI4_CONFIG) {
/* Handling non-embedded SLI_CONFIG mailbox command */
sli4_config = &pmboxq->u.mqe.un.sli4_config;
if (!bf_get(lpfc_mbox_hdr_emb,
&sli4_config->header.cfg_mhdr)) {
/* rebuild the command for sli4 using our
* own buffers like we do for biu diags
*/
nembed_sge = (struct lpfc_mbx_nembed_cmd *)
&pmb->un.varWords[0];
receive_length = nembed_sge->sge[0].length;
/* receive length cannot be greater than
* mailbox extension size
*/
if ((receive_length == 0) ||
(receive_length >
BSG_MBOX_SIZE - sizeof(MAILBOX_t))) {
rc = -ERANGE;
goto job_done;
}
nembed_sge->sge[0].pa_hi =
putPaddrHigh(dmabuf->phys
+ sizeof(MAILBOX_t));
nembed_sge->sge[0].pa_lo =
putPaddrLow(dmabuf->phys
+ sizeof(MAILBOX_t));
}
}
}
dd_data->context_un.mbox.dmabuffers = dmabuf;
/* setup wake call as IOCB callback */
pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl;
/* setup context field to pass wait_queue pointer to wake function */
pmboxq->ctx_ndlp = dd_data;
dd_data->type = TYPE_MBOX;
dd_data->set_job = job;
dd_data->context_un.mbox.pmboxq = pmboxq;
dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx;
dd_data->context_un.mbox.ext = ext;
dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset;
dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen;
dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen;
job->dd_data = dd_data;
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
(!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
if (rc != MBX_SUCCESS) {
rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
goto job_done;
}
/* job finished, copy the data */
memcpy(pmbx, pmb, sizeof(*pmb));
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt,
pmbx, size);
/* not waiting mbox already done */
rc = 0;
goto job_done;
}
rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY))
return 1; /* job started */
job_done:
/* common exit for error or job completed inline */
if (pmboxq)
mempool_free(pmboxq, phba->mbox_mem_pool);
lpfc_bsg_dma_page_free(phba, dmabuf);
kfree(dd_data);
job_cont:
return rc;
}
/**
* lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command
* @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX.
**/
static int
lpfc_bsg_mbox_cmd(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct lpfc_hba *phba = vport->phba;
struct dfc_mbox_req *mbox_req;
int rc = 0;
/* mix-and-match backward compatibility */
bsg_reply->reply_payload_rcv_len = 0;
if (job->request_len <
sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) {
lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
"2737 Mix-and-match backward compatibility "
"between MBOX_REQ old size:%d and "
"new request size:%d\n",
(int)(job->request_len -
sizeof(struct fc_bsg_request)),
(int)sizeof(struct dfc_mbox_req));
mbox_req = (struct dfc_mbox_req *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
mbox_req->extMboxTag = 0;
mbox_req->extSeqNum = 0;
}
rc = lpfc_bsg_issue_mbox(phba, job, vport);
if (rc == 0) {
/* job done */
bsg_reply->result = 0;
job->dd_data = NULL;
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
} else if (rc == 1)
/* job submitted, will complete later*/
rc = 0; /* return zero, no error */
else {
/* some error occurred */
bsg_reply->result = rc;
job->dd_data = NULL;
}
return rc;
}
static int
lpfc_forced_link_speed(struct bsg_job *job)
{
struct Scsi_Host *shost = fc_bsg_to_shost(job);
struct lpfc_vport *vport = shost_priv(shost);
struct lpfc_hba *phba = vport->phba;
struct fc_bsg_reply *bsg_reply = job->reply;
struct forced_link_speed_support_reply *forced_reply;
int rc = 0;
if (job->request_len <
sizeof(struct fc_bsg_request) +
sizeof(struct get_forced_link_speed_support)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"0048 Received FORCED_LINK_SPEED request "
"below minimum size\n");
rc = -EINVAL;
goto job_error;
}
forced_reply = (struct forced_link_speed_support_reply *)
bsg_reply->reply_data.vendor_reply.vendor_rsp;
if (job->reply_len < sizeof(*bsg_reply) + sizeof(*forced_reply)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"0049 Received FORCED_LINK_SPEED reply below "
"minimum size\n");
rc = -EINVAL;
goto job_error;
}
forced_reply->supported = (phba->hba_flag & HBA_FORCED_LINK_SPEED)
? LPFC_FORCED_LINK_SPEED_SUPPORTED
: LPFC_FORCED_LINK_SPEED_NOT_SUPPORTED;
job_error:
bsg_reply->result = rc;
if (rc == 0)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_check_fwlog_support: Check FW log support on the adapter
* @phba: Pointer to HBA context object.
*
* Check if FW Logging support by the adapter
**/
int
lpfc_check_fwlog_support(struct lpfc_hba *phba)
{
struct lpfc_ras_fwlog *ras_fwlog = NULL;
ras_fwlog = &phba->ras_fwlog;
if (!ras_fwlog->ras_hwsupport)
return -EACCES;
else if (!ras_fwlog->ras_enabled)
return -EPERM;
else
return 0;
}
/**
* lpfc_bsg_get_ras_config: Get RAS configuration settings
* @job: fc_bsg_job to handle
*
* Get RAS configuration values set.
**/
static int
lpfc_bsg_get_ras_config(struct bsg_job *job)
{
struct Scsi_Host *shost = fc_bsg_to_shost(job);
struct lpfc_vport *vport = shost_priv(shost);
struct fc_bsg_reply *bsg_reply = job->reply;
struct lpfc_hba *phba = vport->phba;
struct lpfc_bsg_get_ras_config_reply *ras_reply;
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
int rc = 0;
if (job->request_len <
sizeof(struct fc_bsg_request) +
sizeof(struct lpfc_bsg_ras_req)) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"6192 FW_LOG request received "
"below minimum size\n");
rc = -EINVAL;
goto ras_job_error;
}
/* Check FW log status */
rc = lpfc_check_fwlog_support(phba);
if (rc)
goto ras_job_error;
ras_reply = (struct lpfc_bsg_get_ras_config_reply *)
bsg_reply->reply_data.vendor_reply.vendor_rsp;
/* Current logging state */
spin_lock_irq(&phba->hbalock);
if (ras_fwlog->state == ACTIVE)
ras_reply->state = LPFC_RASLOG_STATE_RUNNING;
else
ras_reply->state = LPFC_RASLOG_STATE_STOPPED;
spin_unlock_irq(&phba->hbalock);
ras_reply->log_level = phba->ras_fwlog.fw_loglevel;
ras_reply->log_buff_sz = phba->cfg_ras_fwlog_buffsize;
ras_job_error:
/* make error code available to userspace */
bsg_reply->result = rc;
/* complete the job back to userspace */
if (!rc)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_bsg_set_ras_config: Set FW logging parameters
* @job: fc_bsg_job to handle
*
* Set log-level parameters for FW-logging in host memory
**/
static int
lpfc_bsg_set_ras_config(struct bsg_job *job)
{
struct Scsi_Host *shost = fc_bsg_to_shost(job);
struct lpfc_vport *vport = shost_priv(shost);
struct lpfc_hba *phba = vport->phba;
struct lpfc_bsg_set_ras_config_req *ras_req;
struct fc_bsg_request *bsg_request = job->request;
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
struct fc_bsg_reply *bsg_reply = job->reply;
uint8_t action = 0, log_level = 0;
int rc = 0, action_status = 0;
if (job->request_len <
sizeof(struct fc_bsg_request) +
sizeof(struct lpfc_bsg_set_ras_config_req)) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"6182 Received RAS_LOG request "
"below minimum size\n");
rc = -EINVAL;
goto ras_job_error;
}
/* Check FW log status */
rc = lpfc_check_fwlog_support(phba);
if (rc)
goto ras_job_error;
ras_req = (struct lpfc_bsg_set_ras_config_req *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
action = ras_req->action;
log_level = ras_req->log_level;
if (action == LPFC_RASACTION_STOP_LOGGING) {
/* Check if already disabled */
spin_lock_irq(&phba->hbalock);
if (ras_fwlog->state != ACTIVE) {
spin_unlock_irq(&phba->hbalock);
rc = -ESRCH;
goto ras_job_error;
}
spin_unlock_irq(&phba->hbalock);
/* Disable logging */
lpfc_ras_stop_fwlog(phba);
} else {
/*action = LPFC_RASACTION_START_LOGGING*/
/* Even though FW-logging is active re-initialize
* FW-logging with new log-level. Return status
* "Logging already Running" to caller.
**/
spin_lock_irq(&phba->hbalock);
if (ras_fwlog->state != INACTIVE)
action_status = -EINPROGRESS;
spin_unlock_irq(&phba->hbalock);
/* Enable logging */
rc = lpfc_sli4_ras_fwlog_init(phba, log_level,
LPFC_RAS_ENABLE_LOGGING);
if (rc) {
rc = -EINVAL;
goto ras_job_error;
}
/* Check if FW-logging is re-initialized */
if (action_status == -EINPROGRESS)
rc = action_status;
}
ras_job_error:
/* make error code available to userspace */
bsg_reply->result = rc;
/* complete the job back to userspace */
if (!rc)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_bsg_get_ras_lwpd: Get log write position data
* @job: fc_bsg_job to handle
*
* Get Offset/Wrap count of the log message written
* in host memory
**/
static int
lpfc_bsg_get_ras_lwpd(struct bsg_job *job)
{
struct Scsi_Host *shost = fc_bsg_to_shost(job);
struct lpfc_vport *vport = shost_priv(shost);
struct lpfc_bsg_get_ras_lwpd *ras_reply;
struct lpfc_hba *phba = vport->phba;
struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
struct fc_bsg_reply *bsg_reply = job->reply;
u32 *lwpd_ptr = NULL;
int rc = 0;
rc = lpfc_check_fwlog_support(phba);
if (rc)
goto ras_job_error;
if (job->request_len <
sizeof(struct fc_bsg_request) +
sizeof(struct lpfc_bsg_ras_req)) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"6183 Received RAS_LOG request "
"below minimum size\n");
rc = -EINVAL;
goto ras_job_error;
}
ras_reply = (struct lpfc_bsg_get_ras_lwpd *)
bsg_reply->reply_data.vendor_reply.vendor_rsp;
if (!ras_fwlog->lwpd.virt) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"6193 Restart FW Logging\n");
rc = -EINVAL;
goto ras_job_error;
}
/* Get lwpd offset */
lwpd_ptr = (uint32_t *)(ras_fwlog->lwpd.virt);
ras_reply->offset = be32_to_cpu(*lwpd_ptr & 0xffffffff);
/* Get wrap count */
ras_reply->wrap_count = be32_to_cpu(*(++lwpd_ptr) & 0xffffffff);
ras_job_error:
/* make error code available to userspace */
bsg_reply->result = rc;
/* complete the job back to userspace */
if (!rc)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
/**
* lpfc_bsg_get_ras_fwlog: Read FW log
* @job: fc_bsg_job to handle
*
* Copy the FW log into the passed buffer.
**/
static int
lpfc_bsg_get_ras_fwlog(struct bsg_job *job)
{
struct Scsi_Host *shost = fc_bsg_to_shost(job);
struct lpfc_vport *vport = shost_priv(shost);
struct lpfc_hba *phba = vport->phba;
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct lpfc_bsg_get_fwlog_req *ras_req;
u32 rd_offset, rd_index, offset;
void *src, *fwlog_buff;
struct lpfc_ras_fwlog *ras_fwlog = NULL;
struct lpfc_dmabuf *dmabuf, *next;
int rc = 0;
ras_fwlog = &phba->ras_fwlog;
rc = lpfc_check_fwlog_support(phba);
if (rc)
goto ras_job_error;
/* Logging to be stopped before reading */
spin_lock_irq(&phba->hbalock);
if (ras_fwlog->state == ACTIVE) {
spin_unlock_irq(&phba->hbalock);
rc = -EINPROGRESS;
goto ras_job_error;
}
spin_unlock_irq(&phba->hbalock);
if (job->request_len <
sizeof(struct fc_bsg_request) +
sizeof(struct lpfc_bsg_get_fwlog_req)) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"6184 Received RAS_LOG request "
"below minimum size\n");
rc = -EINVAL;
goto ras_job_error;
}
ras_req = (struct lpfc_bsg_get_fwlog_req *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
rd_offset = ras_req->read_offset;
/* Allocate memory to read fw log*/
fwlog_buff = vmalloc(ras_req->read_size);
if (!fwlog_buff) {
rc = -ENOMEM;
goto ras_job_error;
}
rd_index = (rd_offset / LPFC_RAS_MAX_ENTRY_SIZE);
offset = (rd_offset % LPFC_RAS_MAX_ENTRY_SIZE);
list_for_each_entry_safe(dmabuf, next,
&ras_fwlog->fwlog_buff_list, list) {
if (dmabuf->buffer_tag < rd_index)
continue;
src = dmabuf->virt + offset;
memcpy(fwlog_buff, src, ras_req->read_size);
break;
}
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt,
fwlog_buff, ras_req->read_size);
vfree(fwlog_buff);
ras_job_error:
bsg_reply->result = rc;
if (!rc)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
static int
lpfc_get_trunk_info(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct lpfc_hba *phba = vport->phba;
struct fc_bsg_reply *bsg_reply = job->reply;
struct lpfc_trunk_info *event_reply;
int rc = 0;
if (job->request_len <
sizeof(struct fc_bsg_request) + sizeof(struct get_trunk_info_req)) {
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2744 Received GET TRUNK _INFO request below "
"minimum size\n");
rc = -EINVAL;
goto job_error;
}
event_reply = (struct lpfc_trunk_info *)
bsg_reply->reply_data.vendor_reply.vendor_rsp;
if (job->reply_len < sizeof(*bsg_reply) + sizeof(*event_reply)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
"2728 Received GET TRUNK _INFO reply below "
"minimum size\n");
rc = -EINVAL;
goto job_error;
}
if (event_reply == NULL) {
rc = -EINVAL;
goto job_error;
}
bsg_bf_set(lpfc_trunk_info_link_status, event_reply,
(phba->link_state >= LPFC_LINK_UP) ? 1 : 0);
bsg_bf_set(lpfc_trunk_info_trunk_active0, event_reply,
(phba->trunk_link.link0.state == LPFC_LINK_UP) ? 1 : 0);
bsg_bf_set(lpfc_trunk_info_trunk_active1, event_reply,
(phba->trunk_link.link1.state == LPFC_LINK_UP) ? 1 : 0);
bsg_bf_set(lpfc_trunk_info_trunk_active2, event_reply,
(phba->trunk_link.link2.state == LPFC_LINK_UP) ? 1 : 0);
bsg_bf_set(lpfc_trunk_info_trunk_active3, event_reply,
(phba->trunk_link.link3.state == LPFC_LINK_UP) ? 1 : 0);
bsg_bf_set(lpfc_trunk_info_trunk_config0, event_reply,
bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba));
bsg_bf_set(lpfc_trunk_info_trunk_config1, event_reply,
bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba));
bsg_bf_set(lpfc_trunk_info_trunk_config2, event_reply,
bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba));
bsg_bf_set(lpfc_trunk_info_trunk_config3, event_reply,
bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba));
event_reply->port_speed = phba->sli4_hba.link_state.speed / 1000;
event_reply->logical_speed =
phba->sli4_hba.link_state.logical_speed / 1000;
job_error:
bsg_reply->result = rc;
if (!rc)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return rc;
}
static int
lpfc_get_cgnbuf_info(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct lpfc_hba *phba = vport->phba;
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
struct get_cgnbuf_info_req *cgnbuf_req;
struct lpfc_cgn_info *cp;
uint8_t *cgn_buff;
int size, cinfosz;
int rc = 0;
if (job->request_len < sizeof(struct fc_bsg_request) +
sizeof(struct get_cgnbuf_info_req)) {
rc = -ENOMEM;
goto job_exit;
}
if (!phba->sli4_hba.pc_sli4_params.cmf) {
rc = -ENOENT;
goto job_exit;
}
if (!phba->cgn_i || !phba->cgn_i->virt) {
rc = -ENOENT;
goto job_exit;
}
cp = phba->cgn_i->virt;
if (cp->cgn_info_version < LPFC_CGN_INFO_V3) {
rc = -EPERM;
goto job_exit;
}
cgnbuf_req = (struct get_cgnbuf_info_req *)
bsg_request->rqst_data.h_vendor.vendor_cmd;
/* For reset or size == 0 */
bsg_reply->reply_payload_rcv_len = 0;
if (cgnbuf_req->reset == LPFC_BSG_CGN_RESET_STAT) {
lpfc_init_congestion_stat(phba);
goto job_exit;
}
/* We don't want to include the CRC at the end */
cinfosz = sizeof(struct lpfc_cgn_info) - sizeof(uint32_t);
size = cgnbuf_req->read_size;
if (!size)
goto job_exit;
if (size < cinfosz) {
/* Just copy back what we can */
cinfosz = size;
rc = -E2BIG;
}
/* Allocate memory to read congestion info */
cgn_buff = vmalloc(cinfosz);
if (!cgn_buff) {
rc = -ENOMEM;
goto job_exit;
}
memcpy(cgn_buff, cp, cinfosz);
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt,
cgn_buff, cinfosz);
vfree(cgn_buff);
job_exit:
bsg_reply->result = rc;
if (!rc)
bsg_job_done(job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
else
lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
"2724 GET CGNBUF error: %d\n", rc);
return rc;
}
/**
* lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job
* @job: fc_bsg_job to handle
**/
static int
lpfc_bsg_hst_vendor(struct bsg_job *job)
{
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
int command = bsg_request->rqst_data.h_vendor.vendor_cmd[0];
int rc;
switch (command) {
case LPFC_BSG_VENDOR_SET_CT_EVENT:
rc = lpfc_bsg_hba_set_event(job);
break;
case LPFC_BSG_VENDOR_GET_CT_EVENT:
rc = lpfc_bsg_hba_get_event(job);
break;
case LPFC_BSG_VENDOR_SEND_MGMT_RESP:
rc = lpfc_bsg_send_mgmt_rsp(job);
break;
case LPFC_BSG_VENDOR_DIAG_MODE:
rc = lpfc_bsg_diag_loopback_mode(job);
break;
case LPFC_BSG_VENDOR_DIAG_MODE_END:
rc = lpfc_sli4_bsg_diag_mode_end(job);
break;
case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK:
rc = lpfc_bsg_diag_loopback_run(job);
break;
case LPFC_BSG_VENDOR_LINK_DIAG_TEST:
rc = lpfc_sli4_bsg_link_diag_test(job);
break;
case LPFC_BSG_VENDOR_GET_MGMT_REV:
rc = lpfc_bsg_get_dfc_rev(job);
break;
case LPFC_BSG_VENDOR_MBOX:
rc = lpfc_bsg_mbox_cmd(job);
break;
case LPFC_BSG_VENDOR_FORCED_LINK_SPEED:
rc = lpfc_forced_link_speed(job);
break;
case LPFC_BSG_VENDOR_RAS_GET_LWPD:
rc = lpfc_bsg_get_ras_lwpd(job);
break;
case LPFC_BSG_VENDOR_RAS_GET_FWLOG:
rc = lpfc_bsg_get_ras_fwlog(job);
break;
case LPFC_BSG_VENDOR_RAS_GET_CONFIG:
rc = lpfc_bsg_get_ras_config(job);
break;
case LPFC_BSG_VENDOR_RAS_SET_CONFIG:
rc = lpfc_bsg_set_ras_config(job);
break;
case LPFC_BSG_VENDOR_GET_TRUNK_INFO:
rc = lpfc_get_trunk_info(job);
break;
case LPFC_BSG_VENDOR_GET_CGNBUF_INFO:
rc = lpfc_get_cgnbuf_info(job);
break;
default:
rc = -EINVAL;
bsg_reply->reply_payload_rcv_len = 0;
/* make error code available to userspace */
bsg_reply->result = rc;
break;
}
return rc;
}
/**
* lpfc_bsg_request - handle a bsg request from the FC transport
* @job: bsg_job to handle
**/
int
lpfc_bsg_request(struct bsg_job *job)
{
struct fc_bsg_request *bsg_request = job->request;
struct fc_bsg_reply *bsg_reply = job->reply;
uint32_t msgcode;
int rc;
msgcode = bsg_request->msgcode;
switch (msgcode) {
case FC_BSG_HST_VENDOR:
rc = lpfc_bsg_hst_vendor(job);
break;
case FC_BSG_RPT_ELS:
rc = lpfc_bsg_rport_els(job);
break;
case FC_BSG_RPT_CT:
rc = lpfc_bsg_send_mgmt_cmd(job);
break;
default:
rc = -EINVAL;
bsg_reply->reply_payload_rcv_len = 0;
/* make error code available to userspace */
bsg_reply->result = rc;
break;
}
return rc;
}
/**
* lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport
* @job: bsg_job that has timed out
*
* This function just aborts the job's IOCB. The aborted IOCB will return to
* the waiting function which will handle passing the error back to userspace
**/
int
lpfc_bsg_timeout(struct bsg_job *job)
{
struct lpfc_vport *vport = shost_priv(fc_bsg_to_shost(job));
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *cmdiocb;
struct lpfc_sli_ring *pring;
struct bsg_job_data *dd_data;
unsigned long flags;
int rc = 0;
LIST_HEAD(completions);
struct lpfc_iocbq *check_iocb, *next_iocb;
pring = lpfc_phba_elsring(phba);
if (unlikely(!pring))
return -EIO;
/* if job's driver data is NULL, the command completed or is in the
* the process of completing. In this case, return status to request
* so the timeout is retried. This avoids double completion issues
* and the request will be pulled off the timer queue when the
* command's completion handler executes. Otherwise, prevent the
* command's completion handler from executing the job done callback
* and continue processing to abort the outstanding the command.
*/
spin_lock_irqsave(&phba->ct_ev_lock, flags);
dd_data = (struct bsg_job_data *)job->dd_data;
if (dd_data) {
dd_data->set_job = NULL;
job->dd_data = NULL;
} else {
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
return -EAGAIN;
}
switch (dd_data->type) {
case TYPE_IOCB:
/* Check to see if IOCB was issued to the port or not. If not,
* remove it from the txq queue and call cancel iocbs.
* Otherwise, call abort iotag
*/
cmdiocb = dd_data->context_un.iocb.cmdiocbq;
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
spin_lock_irqsave(&phba->hbalock, flags);
/* make sure the I/O abort window is still open */
if (!(cmdiocb->cmd_flag & LPFC_IO_CMD_OUTSTANDING)) {
spin_unlock_irqrestore(&phba->hbalock, flags);
return -EAGAIN;
}
list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq,
list) {
if (check_iocb == cmdiocb) {
list_move_tail(&check_iocb->list, &completions);
break;
}
}
if (list_empty(&completions))
lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb, NULL);
spin_unlock_irqrestore(&phba->hbalock, flags);
if (!list_empty(&completions)) {
lpfc_sli_cancel_iocbs(phba, &completions,
IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
}
break;
case TYPE_EVT:
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
break;
case TYPE_MBOX:
/* Update the ext buf ctx state if needed */
if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT)
phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS;
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
break;
default:
spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
break;
}
/* scsi transport fc fc_bsg_job_timeout expects a zero return code,
* otherwise an error message will be displayed on the console
* so always return success (zero)
*/
return rc;
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_bsg.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/kthread.h>
#include <linux/interrupt.h>
#include <linux/lockdep.h>
#include <linux/utsname.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"
/* AlpaArray for assignment of scsid for scan-down and bind_method */
static uint8_t lpfcAlpaArray[] = {
0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
};
static void lpfc_disc_timeout_handler(struct lpfc_vport *);
static void lpfc_disc_flush_list(struct lpfc_vport *vport);
static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
static int lpfc_fcf_inuse(struct lpfc_hba *);
static void lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *);
static void lpfc_check_inactive_vmid(struct lpfc_hba *phba);
static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba);
static int
lpfc_valid_xpt_node(struct lpfc_nodelist *ndlp)
{
if (ndlp->nlp_fc4_type ||
ndlp->nlp_type & NLP_FABRIC)
return 1;
return 0;
}
/* The source of a terminate rport I/O is either a dev_loss_tmo
* event or a call to fc_remove_host. While the rport should be
* valid during these downcalls, the transport can call twice
* in a single event. This routine provides somoe protection
* as the NDLP isn't really free, just released to the pool.
*/
static int
lpfc_rport_invalid(struct fc_rport *rport)
{
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *ndlp;
if (!rport) {
pr_err("**** %s: NULL rport, exit.\n", __func__);
return -EINVAL;
}
rdata = rport->dd_data;
if (!rdata) {
pr_err("**** %s: NULL dd_data on rport x%px SID x%x\n",
__func__, rport, rport->scsi_target_id);
return -EINVAL;
}
ndlp = rdata->pnode;
if (!rdata->pnode) {
pr_info("**** %s: NULL ndlp on rport x%px SID x%x\n",
__func__, rport, rport->scsi_target_id);
return -EINVAL;
}
if (!ndlp->vport) {
pr_err("**** %s: Null vport on ndlp x%px, DID x%x rport x%px "
"SID x%x\n", __func__, ndlp, ndlp->nlp_DID, rport,
rport->scsi_target_id);
return -EINVAL;
}
return 0;
}
void
lpfc_terminate_rport_io(struct fc_rport *rport)
{
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *ndlp;
struct lpfc_vport *vport;
if (lpfc_rport_invalid(rport))
return;
rdata = rport->dd_data;
ndlp = rdata->pnode;
vport = ndlp->vport;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport terminate: sid:x%x did:x%x flg:x%x",
ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
if (ndlp->nlp_sid != NLP_NO_SID)
lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);
}
/*
* This function will be called when dev_loss_tmo fire.
*/
void
lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
{
struct lpfc_nodelist *ndlp;
struct lpfc_vport *vport;
struct lpfc_hba *phba;
struct lpfc_work_evt *evtp;
unsigned long iflags;
ndlp = ((struct lpfc_rport_data *)rport->dd_data)->pnode;
if (!ndlp)
return;
vport = ndlp->vport;
phba = vport->phba;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport devlosscb: sid:x%x did:x%x flg:x%x",
ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
"3181 dev_loss_callbk x%06x, rport x%px flg x%x "
"load_flag x%x refcnt %u state %d xpt x%x\n",
ndlp->nlp_DID, ndlp->rport, ndlp->nlp_flag,
vport->load_flag, kref_read(&ndlp->kref),
ndlp->nlp_state, ndlp->fc4_xpt_flags);
/* Don't schedule a worker thread event if the vport is going down. */
if (vport->load_flag & FC_UNLOADING) {
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->rport = NULL;
/* The scsi_transport is done with the rport so lpfc cannot
* call to unregister. Remove the scsi transport reference
* and clean up the SCSI transport node details.
*/
if (ndlp->fc4_xpt_flags & (NLP_XPT_REGD | SCSI_XPT_REGD)) {
ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD;
/* NVME transport-registered rports need the
* NLP_XPT_REGD flag to complete an unregister.
*/
if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD))
ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD;
spin_unlock_irqrestore(&ndlp->lock, iflags);
lpfc_nlp_put(ndlp);
spin_lock_irqsave(&ndlp->lock, iflags);
}
/* Only 1 thread can drop the initial node reference. If
* another thread has set NLP_DROPPED, this thread is done.
*/
if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD) &&
!(ndlp->nlp_flag & NLP_DROPPED)) {
ndlp->nlp_flag |= NLP_DROPPED;
spin_unlock_irqrestore(&ndlp->lock, iflags);
lpfc_nlp_put(ndlp);
return;
}
spin_unlock_irqrestore(&ndlp->lock, iflags);
return;
}
if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
return;
if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn))
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6789 rport name %llx != node port name %llx",
rport->port_name,
wwn_to_u64(ndlp->nlp_portname.u.wwn));
evtp = &ndlp->dev_loss_evt;
if (!list_empty(&evtp->evt_listp)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"6790 rport name %llx dev_loss_evt pending\n",
rport->port_name);
return;
}
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->nlp_flag |= NLP_IN_DEV_LOSS;
/* If there is a PLOGI in progress, and we are in a
* NLP_NPR_2B_DISC state, don't turn off the flag.
*/
if (ndlp->nlp_state != NLP_STE_PLOGI_ISSUE)
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
/*
* The backend does not expect any more calls associated with this
* rport. Remove the association between rport and ndlp.
*/
ndlp->fc4_xpt_flags &= ~SCSI_XPT_REGD;
((struct lpfc_rport_data *)rport->dd_data)->pnode = NULL;
ndlp->rport = NULL;
spin_unlock_irqrestore(&ndlp->lock, iflags);
if (phba->worker_thread) {
/* We need to hold the node by incrementing the reference
* count until this queued work is done
*/
evtp->evt_arg1 = lpfc_nlp_get(ndlp);
spin_lock_irqsave(&phba->hbalock, iflags);
if (evtp->evt_arg1) {
evtp->evt = LPFC_EVT_DEV_LOSS;
list_add_tail(&evtp->evt_listp, &phba->work_list);
lpfc_worker_wake_up(phba);
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
} else {
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
"3188 worker thread is stopped %s x%06x, "
" rport x%px flg x%x load_flag x%x refcnt "
"%d\n", __func__, ndlp->nlp_DID,
ndlp->rport, ndlp->nlp_flag,
vport->load_flag, kref_read(&ndlp->kref));
if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD)) {
spin_lock_irqsave(&ndlp->lock, iflags);
/* Node is in dev loss. No further transaction. */
ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
spin_unlock_irqrestore(&ndlp->lock, iflags);
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RM);
}
}
return;
}
/**
* lpfc_check_inactive_vmid_one - VMID inactivity checker for a vport
* @vport: Pointer to vport context object.
*
* This function checks for idle VMID entries related to a particular vport. If
* found unused/idle, free them accordingly.
**/
static void lpfc_check_inactive_vmid_one(struct lpfc_vport *vport)
{
u16 keep;
u32 difftime = 0, r, bucket;
u64 *lta;
int cpu;
struct lpfc_vmid *vmp;
write_lock(&vport->vmid_lock);
if (!vport->cur_vmid_cnt)
goto out;
/* iterate through the table */
hash_for_each(vport->hash_table, bucket, vmp, hnode) {
keep = 0;
if (vmp->flag & LPFC_VMID_REGISTERED) {
/* check if the particular VMID is in use */
/* for all available per cpu variable */
for_each_possible_cpu(cpu) {
/* if last access time is less than timeout */
lta = per_cpu_ptr(vmp->last_io_time, cpu);
if (!lta)
continue;
difftime = (jiffies) - (*lta);
if ((vport->vmid_inactivity_timeout *
JIFFIES_PER_HR) > difftime) {
keep = 1;
break;
}
}
/* if none of the cpus have been used by the vm, */
/* remove the entry if already registered */
if (!keep) {
/* mark the entry for deregistration */
vmp->flag = LPFC_VMID_DE_REGISTER;
write_unlock(&vport->vmid_lock);
if (vport->vmid_priority_tagging)
r = lpfc_vmid_uvem(vport, vmp, false);
else
r = lpfc_vmid_cmd(vport,
SLI_CTAS_DAPP_IDENT,
vmp);
/* decrement number of active vms and mark */
/* entry in slot as free */
write_lock(&vport->vmid_lock);
if (!r) {
struct lpfc_vmid *ht = vmp;
vport->cur_vmid_cnt--;
ht->flag = LPFC_VMID_SLOT_FREE;
free_percpu(ht->last_io_time);
ht->last_io_time = NULL;
hash_del(&ht->hnode);
}
}
}
}
out:
write_unlock(&vport->vmid_lock);
}
/**
* lpfc_check_inactive_vmid - VMID inactivity checker
* @phba: Pointer to hba context object.
*
* This function is called from the worker thread to determine if an entry in
* the VMID table can be released since there was no I/O activity seen from that
* particular VM for the specified time. When this happens, the entry in the
* table is released and also the resources on the switch cleared.
**/
static void lpfc_check_inactive_vmid(struct lpfc_hba *phba)
{
struct lpfc_vport *vport;
struct lpfc_vport **vports;
int i;
vports = lpfc_create_vport_work_array(phba);
if (!vports)
return;
for (i = 0; i <= phba->max_vports; i++) {
if ((!vports[i]) && (i == 0))
vport = phba->pport;
else
vport = vports[i];
if (!vport)
break;
lpfc_check_inactive_vmid_one(vport);
}
lpfc_destroy_vport_work_array(phba, vports);
}
/**
* lpfc_check_nlp_post_devloss - Check to restore ndlp refcnt after devloss
* @vport: Pointer to vport object.
* @ndlp: Pointer to remote node object.
*
* If NLP_IN_RECOV_POST_DEV_LOSS flag was set due to outstanding recovery of
* node during dev_loss_tmo processing, then this function restores the nlp_put
* kref decrement from lpfc_dev_loss_tmo_handler.
**/
void
lpfc_check_nlp_post_devloss(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp)
{
unsigned long iflags;
spin_lock_irqsave(&ndlp->lock, iflags);
if (ndlp->save_flags & NLP_IN_RECOV_POST_DEV_LOSS) {
ndlp->save_flags &= ~NLP_IN_RECOV_POST_DEV_LOSS;
spin_unlock_irqrestore(&ndlp->lock, iflags);
lpfc_nlp_get(ndlp);
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_NODE,
"8438 Devloss timeout reversed on DID x%x "
"refcnt %d ndlp %p flag x%x "
"port_state = x%x\n",
ndlp->nlp_DID, kref_read(&ndlp->kref), ndlp,
ndlp->nlp_flag, vport->port_state);
spin_lock_irqsave(&ndlp->lock, iflags);
}
spin_unlock_irqrestore(&ndlp->lock, iflags);
}
/**
* lpfc_dev_loss_tmo_handler - Remote node devloss timeout handler
* @ndlp: Pointer to remote node object.
*
* This function is called from the worker thread when devloss timeout timer
* expires. For SLI4 host, this routine shall return 1 when at lease one
* remote node, including this @ndlp, is still in use of FCF; otherwise, this
* routine shall return 0 when there is no remote node is still in use of FCF
* when devloss timeout happened to this @ndlp.
**/
static int
lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
{
struct lpfc_vport *vport;
struct lpfc_hba *phba;
uint8_t *name;
int warn_on = 0;
int fcf_inuse = 0;
bool recovering = false;
struct fc_vport *fc_vport = NULL;
unsigned long iflags;
vport = ndlp->vport;
name = (uint8_t *)&ndlp->nlp_portname;
phba = vport->phba;
if (phba->sli_rev == LPFC_SLI_REV4)
fcf_inuse = lpfc_fcf_inuse(phba);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport devlosstmo:did:x%x type:x%x id:x%x",
ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_sid);
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
"3182 %s x%06x, nflag x%x xflags x%x refcnt %d\n",
__func__, ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->fc4_xpt_flags, kref_read(&ndlp->kref));
/* If the driver is recovering the rport, ignore devloss. */
if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0284 Devloss timeout Ignored on "
"WWPN %x:%x:%x:%x:%x:%x:%x:%x "
"NPort x%x\n",
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID);
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
spin_unlock_irqrestore(&ndlp->lock, iflags);
return fcf_inuse;
}
/* Fabric nodes are done. */
if (ndlp->nlp_type & NLP_FABRIC) {
spin_lock_irqsave(&ndlp->lock, iflags);
/* The driver has to account for a race between any fabric
* node that's in recovery when dev_loss_tmo expires. When this
* happens, the driver has to allow node recovery.
*/
switch (ndlp->nlp_DID) {
case Fabric_DID:
fc_vport = vport->fc_vport;
if (fc_vport) {
/* NPIV path. */
if (fc_vport->vport_state ==
FC_VPORT_INITIALIZING)
recovering = true;
} else {
/* Physical port path. */
if (phba->hba_flag & HBA_FLOGI_OUTSTANDING)
recovering = true;
}
break;
case Fabric_Cntl_DID:
if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
recovering = true;
break;
case FDMI_DID:
fallthrough;
case NameServer_DID:
if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&
ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE)
recovering = true;
break;
default:
/* Ensure the nlp_DID at least has the correct prefix.
* The fabric domain controller's last three nibbles
* vary so we handle it in the default case.
*/
if (ndlp->nlp_DID & Fabric_DID_MASK) {
if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&
ndlp->nlp_state <= NLP_STE_REG_LOGIN_ISSUE)
recovering = true;
}
break;
}
spin_unlock_irqrestore(&ndlp->lock, iflags);
/* Mark an NLP_IN_RECOV_POST_DEV_LOSS flag to know if reversing
* the following lpfc_nlp_put is necessary after fabric node is
* recovered.
*/
if (recovering) {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY | LOG_NODE,
"8436 Devloss timeout marked on "
"DID x%x refcnt %d ndlp %p "
"flag x%x port_state = x%x\n",
ndlp->nlp_DID, kref_read(&ndlp->kref),
ndlp, ndlp->nlp_flag,
vport->port_state);
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->save_flags |= NLP_IN_RECOV_POST_DEV_LOSS;
spin_unlock_irqrestore(&ndlp->lock, iflags);
} else if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
/* Fabric node fully recovered before this dev_loss_tmo
* queue work is processed. Thus, ignore the
* dev_loss_tmo event.
*/
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY | LOG_NODE,
"8437 Devloss timeout ignored on "
"DID x%x refcnt %d ndlp %p "
"flag x%x port_state = x%x\n",
ndlp->nlp_DID, kref_read(&ndlp->kref),
ndlp, ndlp->nlp_flag,
vport->port_state);
return fcf_inuse;
}
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
spin_unlock_irqrestore(&ndlp->lock, iflags);
lpfc_nlp_put(ndlp);
return fcf_inuse;
}
if (ndlp->nlp_sid != NLP_NO_SID) {
warn_on = 1;
lpfc_sli_abort_iocb(vport, ndlp->nlp_sid, 0, LPFC_CTX_TGT);
}
if (warn_on) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0203 Devloss timeout on "
"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
"NPort x%06x Data: x%x x%x x%x refcnt %d\n",
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, ndlp->nlp_rpi,
kref_read(&ndlp->kref));
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_TRACE_EVENT,
"0204 Devloss timeout on "
"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
"NPort x%06x Data: x%x x%x x%x\n",
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, ndlp->nlp_rpi);
}
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->nlp_flag &= ~NLP_IN_DEV_LOSS;
spin_unlock_irqrestore(&ndlp->lock, iflags);
/* If we are devloss, but we are in the process of rediscovering the
* ndlp, don't issue a NLP_EVT_DEVICE_RM event.
*/
if (ndlp->nlp_state >= NLP_STE_PLOGI_ISSUE &&
ndlp->nlp_state <= NLP_STE_PRLI_ISSUE) {
return fcf_inuse;
}
if (!(ndlp->fc4_xpt_flags & NVME_XPT_REGD))
lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
return fcf_inuse;
}
static void lpfc_check_vmid_qfpa_issue(struct lpfc_hba *phba)
{
struct lpfc_vport *vport;
struct lpfc_vport **vports;
int i;
vports = lpfc_create_vport_work_array(phba);
if (!vports)
return;
for (i = 0; i <= phba->max_vports; i++) {
if ((!vports[i]) && (i == 0))
vport = phba->pport;
else
vport = vports[i];
if (!vport)
break;
if (vport->vmid_flag & LPFC_VMID_ISSUE_QFPA) {
if (!lpfc_issue_els_qfpa(vport))
vport->vmid_flag &= ~LPFC_VMID_ISSUE_QFPA;
}
}
lpfc_destroy_vport_work_array(phba, vports);
}
/**
* lpfc_sli4_post_dev_loss_tmo_handler - SLI4 post devloss timeout handler
* @phba: Pointer to hba context object.
* @fcf_inuse: SLI4 FCF in-use state reported from devloss timeout handler.
* @nlp_did: remote node identifer with devloss timeout.
*
* This function is called from the worker thread after invoking devloss
* timeout handler and releasing the reference count for the ndlp with
* which the devloss timeout was handled for SLI4 host. For the devloss
* timeout of the last remote node which had been in use of FCF, when this
* routine is invoked, it shall be guaranteed that none of the remote are
* in-use of FCF. When devloss timeout to the last remote using the FCF,
* if the FIP engine is neither in FCF table scan process nor roundrobin
* failover process, the in-use FCF shall be unregistered. If the FIP
* engine is in FCF discovery process, the devloss timeout state shall
* be set for either the FCF table scan process or roundrobin failover
* process to unregister the in-use FCF.
**/
static void
lpfc_sli4_post_dev_loss_tmo_handler(struct lpfc_hba *phba, int fcf_inuse,
uint32_t nlp_did)
{
/* If devloss timeout happened to a remote node when FCF had no
* longer been in-use, do nothing.
*/
if (!fcf_inuse)
return;
if ((phba->hba_flag & HBA_FIP_SUPPORT) && !lpfc_fcf_inuse(phba)) {
spin_lock_irq(&phba->hbalock);
if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
if (phba->hba_flag & HBA_DEVLOSS_TMO) {
spin_unlock_irq(&phba->hbalock);
return;
}
phba->hba_flag |= HBA_DEVLOSS_TMO;
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2847 Last remote node (x%x) using "
"FCF devloss tmo\n", nlp_did);
}
if (phba->fcf.fcf_flag & FCF_REDISC_PROG) {
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2868 Devloss tmo to FCF rediscovery "
"in progress\n");
return;
}
if (!(phba->hba_flag & (FCF_TS_INPROG | FCF_RR_INPROG))) {
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2869 Devloss tmo to idle FIP engine, "
"unreg in-use FCF and rescan.\n");
/* Unregister in-use FCF and rescan */
lpfc_unregister_fcf_rescan(phba);
return;
}
spin_unlock_irq(&phba->hbalock);
if (phba->hba_flag & FCF_TS_INPROG)
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2870 FCF table scan in progress\n");
if (phba->hba_flag & FCF_RR_INPROG)
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2871 FLOGI roundrobin FCF failover "
"in progress\n");
}
lpfc_unregister_unused_fcf(phba);
}
/**
* lpfc_alloc_fast_evt - Allocates data structure for posting event
* @phba: Pointer to hba context object.
*
* This function is called from the functions which need to post
* events from interrupt context. This function allocates data
* structure required for posting event. It also keeps track of
* number of events pending and prevent event storm when there are
* too many events.
**/
struct lpfc_fast_path_event *
lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
struct lpfc_fast_path_event *ret;
/* If there are lot of fast event do not exhaust memory due to this */
if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
return NULL;
ret = kzalloc(sizeof(struct lpfc_fast_path_event),
GFP_ATOMIC);
if (ret) {
atomic_inc(&phba->fast_event_count);
INIT_LIST_HEAD(&ret->work_evt.evt_listp);
ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
}
return ret;
}
/**
* lpfc_free_fast_evt - Frees event data structure
* @phba: Pointer to hba context object.
* @evt: Event object which need to be freed.
*
* This function frees the data structure required for posting
* events.
**/
void
lpfc_free_fast_evt(struct lpfc_hba *phba,
struct lpfc_fast_path_event *evt) {
atomic_dec(&phba->fast_event_count);
kfree(evt);
}
/**
* lpfc_send_fastpath_evt - Posts events generated from fast path
* @phba: Pointer to hba context object.
* @evtp: Event data structure.
*
* This function is called from worker thread, when the interrupt
* context need to post an event. This function posts the event
* to fc transport netlink interface.
**/
static void
lpfc_send_fastpath_evt(struct lpfc_hba *phba,
struct lpfc_work_evt *evtp)
{
unsigned long evt_category, evt_sub_category;
struct lpfc_fast_path_event *fast_evt_data;
char *evt_data;
uint32_t evt_data_size;
struct Scsi_Host *shost;
fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
work_evt);
evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
evt_sub_category = (unsigned long) fast_evt_data->un.
fabric_evt.subcategory;
shost = lpfc_shost_from_vport(fast_evt_data->vport);
if (evt_category == FC_REG_FABRIC_EVENT) {
if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
evt_data = (char *) &fast_evt_data->un.read_check_error;
evt_data_size = sizeof(fast_evt_data->un.
read_check_error);
} else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
(evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
evt_data = (char *) &fast_evt_data->un.fabric_evt;
evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
} else {
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
} else if (evt_category == FC_REG_SCSI_EVENT) {
switch (evt_sub_category) {
case LPFC_EVENT_QFULL:
case LPFC_EVENT_DEVBSY:
evt_data = (char *) &fast_evt_data->un.scsi_evt;
evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
break;
case LPFC_EVENT_CHECK_COND:
evt_data = (char *) &fast_evt_data->un.check_cond_evt;
evt_data_size = sizeof(fast_evt_data->un.
check_cond_evt);
break;
case LPFC_EVENT_VARQUEDEPTH:
evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
evt_data_size = sizeof(fast_evt_data->un.
queue_depth_evt);
break;
default:
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
} else {
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
fc_host_post_vendor_event(shost,
fc_get_event_number(),
evt_data_size,
evt_data,
LPFC_NL_VENDOR_ID);
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
static void
lpfc_work_list_done(struct lpfc_hba *phba)
{
struct lpfc_work_evt *evtp = NULL;
struct lpfc_nodelist *ndlp;
int free_evt;
int fcf_inuse;
uint32_t nlp_did;
bool hba_pci_err;
spin_lock_irq(&phba->hbalock);
while (!list_empty(&phba->work_list)) {
list_remove_head((&phba->work_list), evtp, typeof(*evtp),
evt_listp);
spin_unlock_irq(&phba->hbalock);
hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);
free_evt = 1;
switch (evtp->evt) {
case LPFC_EVT_ELS_RETRY:
ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
if (!hba_pci_err) {
lpfc_els_retry_delay_handler(ndlp);
free_evt = 0; /* evt is part of ndlp */
}
/* decrement the node reference count held
* for this queued work
*/
lpfc_nlp_put(ndlp);
break;
case LPFC_EVT_DEV_LOSS:
ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
fcf_inuse = lpfc_dev_loss_tmo_handler(ndlp);
free_evt = 0;
/* decrement the node reference count held for
* this queued work
*/
nlp_did = ndlp->nlp_DID;
lpfc_nlp_put(ndlp);
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_post_dev_loss_tmo_handler(phba,
fcf_inuse,
nlp_did);
break;
case LPFC_EVT_RECOVER_PORT:
ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
if (!hba_pci_err) {
lpfc_sli_abts_recover_port(ndlp->vport, ndlp);
free_evt = 0;
}
/* decrement the node reference count held for
* this queued work
*/
lpfc_nlp_put(ndlp);
break;
case LPFC_EVT_ONLINE:
if (phba->link_state < LPFC_LINK_DOWN)
*(int *) (evtp->evt_arg1) = lpfc_online(phba);
else
*(int *) (evtp->evt_arg1) = 0;
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_OFFLINE_PREP:
if (phba->link_state >= LPFC_LINK_DOWN)
lpfc_offline_prep(phba, LPFC_MBX_WAIT);
*(int *)(evtp->evt_arg1) = 0;
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_OFFLINE:
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
*(int *)(evtp->evt_arg1) =
lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
lpfc_unblock_mgmt_io(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_WARM_START:
lpfc_offline(phba);
lpfc_reset_barrier(phba);
lpfc_sli_brdreset(phba);
lpfc_hba_down_post(phba);
*(int *)(evtp->evt_arg1) =
lpfc_sli_brdready(phba, HS_MBRDY);
lpfc_unblock_mgmt_io(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_KILL:
lpfc_offline(phba);
*(int *)(evtp->evt_arg1)
= (phba->pport->stopped)
? 0 : lpfc_sli_brdkill(phba);
lpfc_unblock_mgmt_io(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_FASTPATH_MGMT_EVT:
lpfc_send_fastpath_evt(phba, evtp);
free_evt = 0;
break;
case LPFC_EVT_RESET_HBA:
if (!(phba->pport->load_flag & FC_UNLOADING))
lpfc_reset_hba(phba);
break;
}
if (free_evt)
kfree(evtp);
spin_lock_irq(&phba->hbalock);
}
spin_unlock_irq(&phba->hbalock);
}
static void
lpfc_work_done(struct lpfc_hba *phba)
{
struct lpfc_sli_ring *pring;
uint32_t ha_copy, status, control, work_port_events;
struct lpfc_vport **vports;
struct lpfc_vport *vport;
int i;
bool hba_pci_err;
hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);
spin_lock_irq(&phba->hbalock);
ha_copy = phba->work_ha;
phba->work_ha = 0;
spin_unlock_irq(&phba->hbalock);
if (hba_pci_err)
ha_copy = 0;
/* First, try to post the next mailbox command to SLI4 device */
if (phba->pci_dev_grp == LPFC_PCI_DEV_OC && !hba_pci_err)
lpfc_sli4_post_async_mbox(phba);
if (ha_copy & HA_ERATT) {
/* Handle the error attention event */
lpfc_handle_eratt(phba);
if (phba->fw_dump_cmpl) {
complete(phba->fw_dump_cmpl);
phba->fw_dump_cmpl = NULL;
}
}
if (ha_copy & HA_MBATT)
lpfc_sli_handle_mb_event(phba);
if (ha_copy & HA_LATT)
lpfc_handle_latt(phba);
/* Handle VMID Events */
if (lpfc_is_vmid_enabled(phba) && !hba_pci_err) {
if (phba->pport->work_port_events &
WORKER_CHECK_VMID_ISSUE_QFPA) {
lpfc_check_vmid_qfpa_issue(phba);
phba->pport->work_port_events &=
~WORKER_CHECK_VMID_ISSUE_QFPA;
}
if (phba->pport->work_port_events &
WORKER_CHECK_INACTIVE_VMID) {
lpfc_check_inactive_vmid(phba);
phba->pport->work_port_events &=
~WORKER_CHECK_INACTIVE_VMID;
}
}
/* Process SLI4 events */
if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
if (phba->hba_flag & HBA_RRQ_ACTIVE)
lpfc_handle_rrq_active(phba);
if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
lpfc_sli4_els_xri_abort_event_proc(phba);
if (phba->hba_flag & ASYNC_EVENT)
lpfc_sli4_async_event_proc(phba);
if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
spin_unlock_irq(&phba->hbalock);
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
}
if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
lpfc_sli4_fcf_redisc_event_proc(phba);
}
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports; i++) {
/*
* We could have no vports in array if unloading, so if
* this happens then just use the pport
*/
if (vports[i] == NULL && i == 0)
vport = phba->pport;
else
vport = vports[i];
if (vport == NULL)
break;
spin_lock_irq(&vport->work_port_lock);
work_port_events = vport->work_port_events;
vport->work_port_events &= ~work_port_events;
spin_unlock_irq(&vport->work_port_lock);
if (hba_pci_err)
continue;
if (work_port_events & WORKER_DISC_TMO)
lpfc_disc_timeout_handler(vport);
if (work_port_events & WORKER_ELS_TMO)
lpfc_els_timeout_handler(vport);
if (work_port_events & WORKER_HB_TMO)
lpfc_hb_timeout_handler(phba);
if (work_port_events & WORKER_MBOX_TMO)
lpfc_mbox_timeout_handler(phba);
if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
lpfc_unblock_fabric_iocbs(phba);
if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
lpfc_ramp_down_queue_handler(phba);
if (work_port_events & WORKER_DELAYED_DISC_TMO)
lpfc_delayed_disc_timeout_handler(vport);
}
lpfc_destroy_vport_work_array(phba, vports);
pring = lpfc_phba_elsring(phba);
status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
status >>= (4*LPFC_ELS_RING);
if (pring && (status & HA_RXMASK ||
pring->flag & LPFC_DEFERRED_RING_EVENT ||
phba->hba_flag & HBA_SP_QUEUE_EVT)) {
if (pring->flag & LPFC_STOP_IOCB_EVENT) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
/* Preserve legacy behavior. */
if (!(phba->hba_flag & HBA_SP_QUEUE_EVT))
set_bit(LPFC_DATA_READY, &phba->data_flags);
} else {
/* Driver could have abort request completed in queue
* when link goes down. Allow for this transition.
*/
if (phba->link_state >= LPFC_LINK_DOWN ||
phba->link_flag & LS_MDS_LOOPBACK) {
pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
lpfc_sli_handle_slow_ring_event(phba, pring,
(status &
HA_RXMASK));
}
}
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_drain_txq(phba);
/*
* Turn on Ring interrupts
*/
if (phba->sli_rev <= LPFC_SLI_REV3) {
spin_lock_irq(&phba->hbalock);
control = readl(phba->HCregaddr);
if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
lpfc_debugfs_slow_ring_trc(phba,
"WRK Enable ring: cntl:x%x hacopy:x%x",
control, ha_copy, 0);
control |= (HC_R0INT_ENA << LPFC_ELS_RING);
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
} else {
lpfc_debugfs_slow_ring_trc(phba,
"WRK Ring ok: cntl:x%x hacopy:x%x",
control, ha_copy, 0);
}
spin_unlock_irq(&phba->hbalock);
}
}
lpfc_work_list_done(phba);
}
int
lpfc_do_work(void *p)
{
struct lpfc_hba *phba = p;
int rc;
set_user_nice(current, MIN_NICE);
current->flags |= PF_NOFREEZE;
phba->data_flags = 0;
while (!kthread_should_stop()) {
/* wait and check worker queue activities */
rc = wait_event_interruptible(phba->work_waitq,
(test_and_clear_bit(LPFC_DATA_READY,
&phba->data_flags)
|| kthread_should_stop()));
/* Signal wakeup shall terminate the worker thread */
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0433 Wakeup on signal: rc=x%x\n", rc);
break;
}
/* Attend pending lpfc data processing */
lpfc_work_done(phba);
}
phba->worker_thread = NULL;
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"0432 Worker thread stopped.\n");
return 0;
}
/*
* This is only called to handle FC worker events. Since this a rare
* occurrence, we allocate a struct lpfc_work_evt structure here instead of
* embedding it in the IOCB.
*/
int
lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
uint32_t evt)
{
struct lpfc_work_evt *evtp;
unsigned long flags;
/*
* All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
* be queued to worker thread for processing
*/
evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
if (!evtp)
return 0;
evtp->evt_arg1 = arg1;
evtp->evt_arg2 = arg2;
evtp->evt = evt;
spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&evtp->evt_listp, &phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_worker_wake_up(phba);
return 1;
}
void
lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp, *next_ndlp;
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
((vport->port_type == LPFC_NPIV_PORT) &&
((ndlp->nlp_DID == NameServer_DID) ||
(ndlp->nlp_DID == FDMI_DID) ||
(ndlp->nlp_DID == Fabric_Cntl_DID))))
lpfc_unreg_rpi(vport, ndlp);
/* Leave Fabric nodes alone on link down */
if ((phba->sli_rev < LPFC_SLI_REV4) &&
(!remove && ndlp->nlp_type & NLP_FABRIC))
continue;
/* Notify transport of connectivity loss to trigger cleanup. */
if (phba->nvmet_support &&
ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
lpfc_nvmet_invalidate_host(phba, ndlp);
lpfc_disc_state_machine(vport, ndlp, NULL,
remove
? NLP_EVT_DEVICE_RM
: NLP_EVT_DEVICE_RECOVERY);
}
if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_unreg_all_rpis(vport);
lpfc_mbx_unreg_vpi(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
}
}
void
lpfc_port_link_failure(struct lpfc_vport *vport)
{
lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN);
/* Cleanup any outstanding received buffers */
lpfc_cleanup_rcv_buffers(vport);
/* Cleanup any outstanding RSCN activity */
lpfc_els_flush_rscn(vport);
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_cmd(vport);
lpfc_cleanup_rpis(vport, 0);
/* Turn off discovery timer if its running */
lpfc_can_disctmo(vport);
}
void
lpfc_linkdown_port(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
fc_host_post_event(shost, fc_get_event_number(),
FCH_EVT_LINKDOWN, 0);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Link Down: state:x%x rtry:x%x flg:x%x",
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
lpfc_port_link_failure(vport);
/* Stop delayed Nport discovery */
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_DISC_DELAYED;
spin_unlock_irq(shost->host_lock);
del_timer_sync(&vport->delayed_disc_tmo);
if (phba->sli_rev == LPFC_SLI_REV4 &&
vport->port_type == LPFC_PHYSICAL_PORT &&
phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) {
/* Assume success on link up */
phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
}
}
int
lpfc_linkdown(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_vport **vports;
LPFC_MBOXQ_t *mb;
int i;
int offline;
if (phba->link_state == LPFC_LINK_DOWN)
return 0;
/* Block all SCSI stack I/Os */
lpfc_scsi_dev_block(phba);
offline = pci_channel_offline(phba->pcidev);
phba->defer_flogi_acc_flag = false;
/* Clear external loopback plug detected flag */
phba->link_flag &= ~LS_EXTERNAL_LOOPBACK;
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
spin_unlock_irq(&phba->hbalock);
if (phba->link_state > LPFC_LINK_DOWN) {
phba->link_state = LPFC_LINK_DOWN;
if (phba->sli4_hba.conf_trunk) {
phba->trunk_link.link0.state = 0;
phba->trunk_link.link1.state = 0;
phba->trunk_link.link2.state = 0;
phba->trunk_link.link3.state = 0;
phba->trunk_link.phy_lnk_speed =
LPFC_LINK_SPEED_UNKNOWN;
phba->sli4_hba.link_state.logical_speed =
LPFC_LINK_SPEED_UNKNOWN;
}
spin_lock_irq(shost->host_lock);
phba->pport->fc_flag &= ~FC_LBIT;
spin_unlock_irq(shost->host_lock);
}
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
/* Issue a LINK DOWN event to all nodes */
lpfc_linkdown_port(vports[i]);
vports[i]->fc_myDID = 0;
if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
if (phba->nvmet_support)
lpfc_nvmet_update_targetport(phba);
else
lpfc_nvme_update_localport(vports[i]);
}
}
}
lpfc_destroy_vport_work_array(phba, vports);
/* Clean up any SLI3 firmware default rpi's */
if (phba->sli_rev > LPFC_SLI_REV3 || offline)
goto skip_unreg_did;
mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mb) {
lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
mb->vport = vport;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
== MBX_NOT_FINISHED) {
mempool_free(mb, phba->mbox_mem_pool);
}
}
skip_unreg_did:
/* Setup myDID for link up if we are in pt2pt mode */
if (phba->pport->fc_flag & FC_PT2PT) {
mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mb) {
lpfc_config_link(phba, mb);
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mb->vport = vport;
if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
== MBX_NOT_FINISHED) {
mempool_free(mb, phba->mbox_mem_pool);
}
}
spin_lock_irq(shost->host_lock);
phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
phba->pport->rcv_flogi_cnt = 0;
spin_unlock_irq(shost->host_lock);
}
return 0;
}
static void
lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
continue;
if (ndlp->nlp_type & NLP_FABRIC) {
/* On Linkup its safe to clean up the ndlp
* from Fabric connections.
*/
if (ndlp->nlp_DID != Fabric_DID)
lpfc_unreg_rpi(vport, ndlp);
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
/* Fail outstanding IO now since device is
* marked for PLOGI.
*/
lpfc_unreg_rpi(vport, ndlp);
}
}
}
static void
lpfc_linkup_port(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
if ((vport->load_flag & FC_UNLOADING) != 0)
return;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Link Up: top:x%x speed:x%x flg:x%x",
phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
/* If NPIV is not enabled, only bring the physical port up */
if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(vport != phba->pport))
return;
if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
fc_host_post_event(shost, fc_get_event_number(),
FCH_EVT_LINKUP, 0);
spin_lock_irq(shost->host_lock);
if (phba->defer_flogi_acc_flag)
vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_RSCN_MODE |
FC_NLP_MORE | FC_RSCN_DISCOVERY);
else
vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI |
FC_ABORT_DISCOVERY | FC_RSCN_MODE |
FC_NLP_MORE | FC_RSCN_DISCOVERY);
vport->fc_flag |= FC_NDISC_ACTIVE;
vport->fc_ns_retry = 0;
spin_unlock_irq(shost->host_lock);
lpfc_setup_fdmi_mask(vport);
lpfc_linkup_cleanup_nodes(vport);
}
static int
lpfc_linkup(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i;
struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
phba->link_state = LPFC_LINK_UP;
/* Unblock fabric iocbs if they are blocked */
clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
del_timer_sync(&phba->fabric_block_timer);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
lpfc_linkup_port(vports[i]);
lpfc_destroy_vport_work_array(phba, vports);
/* Clear the pport flogi counter in case the link down was
* absorbed without an ACQE. No lock here - in worker thread
* and discovery is synchronized.
*/
spin_lock_irq(shost->host_lock);
phba->pport->rcv_flogi_cnt = 0;
spin_unlock_irq(shost->host_lock);
/* reinitialize initial HBA flag */
phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_RHBA_CMPL);
return 0;
}
/*
* This routine handles processing a CLEAR_LA mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer. SLI3 only.
*/
static void
lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_sli *psli = &phba->sli;
MAILBOX_t *mb = &pmb->u.mb;
uint32_t control;
/* Since we don't do discovery right now, turn these off here */
psli->sli3_ring[LPFC_EXTRA_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
psli->sli3_ring[LPFC_FCP_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
/* Check for error */
if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
/* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0320 CLEAR_LA mbxStatus error x%x hba "
"state x%x\n",
mb->mbxStatus, vport->port_state);
phba->link_state = LPFC_HBA_ERROR;
goto out;
}
if (vport->port_type == LPFC_PHYSICAL_PORT)
phba->link_state = LPFC_HBA_READY;
spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_PROCESS_LA;
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
spin_unlock_irq(&phba->hbalock);
mempool_free(pmb, phba->mbox_mem_pool);
return;
out:
/* Device Discovery completes */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0225 Device Discovery completes\n");
mempool_free(pmb, phba->mbox_mem_pool);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_ABORT_DISCOVERY;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
/* turn on Link Attention interrupts */
spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_PROCESS_LA;
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
spin_unlock_irq(&phba->hbalock);
return;
}
void
lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
LPFC_MBOXQ_t *sparam_mb;
u16 status = pmb->u.mb.mbxStatus;
int rc;
mempool_free(pmb, phba->mbox_mem_pool);
if (status)
goto out;
/* don't perform discovery for SLI4 loopback diagnostic test */
if ((phba->sli_rev == LPFC_SLI_REV4) &&
!(phba->hba_flag & HBA_FCOE_MODE) &&
(phba->link_flag & LS_LOOPBACK_MODE))
return;
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
vport->fc_flag & FC_PUBLIC_LOOP &&
!(vport->fc_flag & FC_LBIT)) {
/* Need to wait for FAN - use discovery timer
* for timeout. port_state is identically
* LPFC_LOCAL_CFG_LINK while waiting for FAN
*/
lpfc_set_disctmo(vport);
return;
}
/* Start discovery by sending a FLOGI. port_state is identically
* LPFC_FLOGI while waiting for FLOGI cmpl.
*/
if (vport->port_state != LPFC_FLOGI) {
/* Issue MBX_READ_SPARAM to update CSPs before FLOGI if
* bb-credit recovery is in place.
*/
if (phba->bbcredit_support && phba->cfg_enable_bbcr &&
!(phba->link_flag & LS_LOOPBACK_MODE)) {
sparam_mb = mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!sparam_mb)
goto sparam_out;
rc = lpfc_read_sparam(phba, sparam_mb, 0);
if (rc) {
mempool_free(sparam_mb, phba->mbox_mem_pool);
goto sparam_out;
}
sparam_mb->vport = vport;
sparam_mb->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
rc = lpfc_sli_issue_mbox(phba, sparam_mb, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_mbox_rsrc_cleanup(phba, sparam_mb,
MBOX_THD_UNLOCKED);
goto sparam_out;
}
phba->hba_flag |= HBA_DEFER_FLOGI;
} else {
lpfc_initial_flogi(vport);
}
} else {
if (vport->fc_flag & FC_PT2PT)
lpfc_disc_start(vport);
}
return;
out:
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n",
status, vport->port_state);
sparam_out:
lpfc_linkdown(phba);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0200 CONFIG_LINK bad hba state x%x\n",
vport->port_state);
lpfc_issue_clear_la(phba, vport);
return;
}
/**
* lpfc_sli4_clear_fcf_rr_bmask
* @phba: pointer to the struct lpfc_hba for this port.
* This fucnction resets the round robin bit mask and clears the
* fcf priority list. The list deletions are done while holding the
* hbalock. The ON_LIST flag and the FLOGI_FAILED flags are cleared
* from the lpfc_fcf_pri record.
**/
void
lpfc_sli4_clear_fcf_rr_bmask(struct lpfc_hba *phba)
{
struct lpfc_fcf_pri *fcf_pri;
struct lpfc_fcf_pri *next_fcf_pri;
memset(phba->fcf.fcf_rr_bmask, 0, sizeof(*phba->fcf.fcf_rr_bmask));
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(fcf_pri, next_fcf_pri,
&phba->fcf.fcf_pri_list, list) {
list_del_init(&fcf_pri->list);
fcf_pri->fcf_rec.flag = 0;
}
spin_unlock_irq(&phba->hbalock);
}
static void
lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2017 REG_FCFI mbxStatus error x%x "
"HBA state x%x\n", mboxq->u.mb.mbxStatus,
vport->port_state);
goto fail_out;
}
/* Start FCoE discovery by sending a FLOGI. */
phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
/* Set the FCFI registered flag */
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag |= FCF_REGISTERED;
spin_unlock_irq(&phba->hbalock);
/* If there is a pending FCoE event, restart FCF table scan. */
if ((!(phba->hba_flag & FCF_RR_INPROG)) &&
lpfc_check_pending_fcoe_event(phba, LPFC_UNREG_FCF))
goto fail_out;
/* Mark successful completion of FCF table scan */
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
phba->hba_flag &= ~FCF_TS_INPROG;
if (vport->port_state != LPFC_FLOGI) {
phba->hba_flag |= FCF_RR_INPROG;
spin_unlock_irq(&phba->hbalock);
lpfc_issue_init_vfi(vport);
goto out;
}
spin_unlock_irq(&phba->hbalock);
goto out;
fail_out:
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~FCF_RR_INPROG;
spin_unlock_irq(&phba->hbalock);
out:
mempool_free(mboxq, phba->mbox_mem_pool);
}
/**
* lpfc_fab_name_match - Check if the fcf fabric name match.
* @fab_name: pointer to fabric name.
* @new_fcf_record: pointer to fcf record.
*
* This routine compare the fcf record's fabric name with provided
* fabric name. If the fabric name are identical this function
* returns 1 else return 0.
**/
static uint32_t
lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
{
if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
return 0;
if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
return 0;
if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
return 0;
if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
return 0;
if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
return 0;
if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
return 0;
if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
return 0;
if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
return 0;
return 1;
}
/**
* lpfc_sw_name_match - Check if the fcf switch name match.
* @sw_name: pointer to switch name.
* @new_fcf_record: pointer to fcf record.
*
* This routine compare the fcf record's switch name with provided
* switch name. If the switch name are identical this function
* returns 1 else return 0.
**/
static uint32_t
lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
{
if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
return 0;
if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
return 0;
if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
return 0;
if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
return 0;
if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
return 0;
if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
return 0;
if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
return 0;
if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
return 0;
return 1;
}
/**
* lpfc_mac_addr_match - Check if the fcf mac address match.
* @mac_addr: pointer to mac address.
* @new_fcf_record: pointer to fcf record.
*
* This routine compare the fcf record's mac address with HBA's
* FCF mac address. If the mac addresses are identical this function
* returns 1 else return 0.
**/
static uint32_t
lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
{
if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
return 0;
if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
return 0;
if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
return 0;
if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
return 0;
if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
return 0;
if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
return 0;
return 1;
}
static bool
lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
{
return (curr_vlan_id == new_vlan_id);
}
/**
* __lpfc_update_fcf_record_pri - update the lpfc_fcf_pri record.
* @phba: pointer to lpfc hba data structure.
* @fcf_index: Index for the lpfc_fcf_record.
* @new_fcf_record: pointer to hba fcf record.
*
* This routine updates the driver FCF priority record from the new HBA FCF
* record. The hbalock is asserted held in the code path calling this
* routine.
**/
static void
__lpfc_update_fcf_record_pri(struct lpfc_hba *phba, uint16_t fcf_index,
struct fcf_record *new_fcf_record
)
{
struct lpfc_fcf_pri *fcf_pri;
fcf_pri = &phba->fcf.fcf_pri[fcf_index];
fcf_pri->fcf_rec.fcf_index = fcf_index;
/* FCF record priority */
fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
}
/**
* lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
* @fcf_rec: pointer to driver fcf record.
* @new_fcf_record: pointer to fcf record.
*
* This routine copies the FCF information from the FCF
* record to lpfc_hba data structure.
**/
static void
lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
struct fcf_record *new_fcf_record)
{
/* Fabric name */
fcf_rec->fabric_name[0] =
bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
fcf_rec->fabric_name[1] =
bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
fcf_rec->fabric_name[2] =
bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
fcf_rec->fabric_name[3] =
bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
fcf_rec->fabric_name[4] =
bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
fcf_rec->fabric_name[5] =
bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
fcf_rec->fabric_name[6] =
bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
fcf_rec->fabric_name[7] =
bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
/* Mac address */
fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
/* FCF record index */
fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
/* FCF record priority */
fcf_rec->priority = new_fcf_record->fip_priority;
/* Switch name */
fcf_rec->switch_name[0] =
bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
fcf_rec->switch_name[1] =
bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
fcf_rec->switch_name[2] =
bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
fcf_rec->switch_name[3] =
bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
fcf_rec->switch_name[4] =
bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
fcf_rec->switch_name[5] =
bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
fcf_rec->switch_name[6] =
bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
fcf_rec->switch_name[7] =
bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
}
/**
* __lpfc_update_fcf_record - Update driver fcf record
* @phba: pointer to lpfc hba data structure.
* @fcf_rec: pointer to driver fcf record.
* @new_fcf_record: pointer to hba fcf record.
* @addr_mode: address mode to be set to the driver fcf record.
* @vlan_id: vlan tag to be set to the driver fcf record.
* @flag: flag bits to be set to the driver fcf record.
*
* This routine updates the driver FCF record from the new HBA FCF record
* together with the address mode, vlan_id, and other informations. This
* routine is called with the hbalock held.
**/
static void
__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
struct fcf_record *new_fcf_record, uint32_t addr_mode,
uint16_t vlan_id, uint32_t flag)
{
lockdep_assert_held(&phba->hbalock);
/* Copy the fields from the HBA's FCF record */
lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
/* Update other fields of driver FCF record */
fcf_rec->addr_mode = addr_mode;
fcf_rec->vlan_id = vlan_id;
fcf_rec->flag |= (flag | RECORD_VALID);
__lpfc_update_fcf_record_pri(phba,
bf_get(lpfc_fcf_record_fcf_index, new_fcf_record),
new_fcf_record);
}
/**
* lpfc_register_fcf - Register the FCF with hba.
* @phba: pointer to lpfc hba data structure.
*
* This routine issues a register fcfi mailbox command to register
* the fcf with HBA.
**/
static void
lpfc_register_fcf(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *fcf_mbxq;
int rc;
spin_lock_irq(&phba->hbalock);
/* If the FCF is not available do nothing. */
if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
spin_unlock_irq(&phba->hbalock);
return;
}
/* The FCF is already registered, start discovery */
if (phba->fcf.fcf_flag & FCF_REGISTERED) {
phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
phba->hba_flag &= ~FCF_TS_INPROG;
if (phba->pport->port_state != LPFC_FLOGI &&
phba->pport->fc_flag & FC_FABRIC) {
phba->hba_flag |= FCF_RR_INPROG;
spin_unlock_irq(&phba->hbalock);
lpfc_initial_flogi(phba->pport);
return;
}
spin_unlock_irq(&phba->hbalock);
return;
}
spin_unlock_irq(&phba->hbalock);
fcf_mbxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!fcf_mbxq) {
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
spin_unlock_irq(&phba->hbalock);
return;
}
lpfc_reg_fcfi(phba, fcf_mbxq);
fcf_mbxq->vport = phba->pport;
fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
spin_unlock_irq(&phba->hbalock);
mempool_free(fcf_mbxq, phba->mbox_mem_pool);
}
return;
}
/**
* lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
* @phba: pointer to lpfc hba data structure.
* @new_fcf_record: pointer to fcf record.
* @boot_flag: Indicates if this record used by boot bios.
* @addr_mode: The address mode to be used by this FCF
* @vlan_id: The vlan id to be used as vlan tagging by this FCF.
*
* This routine compare the fcf record with connect list obtained from the
* config region to decide if this FCF can be used for SAN discovery. It returns
* 1 if this record can be used for SAN discovery else return zero. If this FCF
* record can be used for SAN discovery, the boot_flag will indicate if this FCF
* is used by boot bios and addr_mode will indicate the addressing mode to be
* used for this FCF when the function returns.
* If the FCF record need to be used with a particular vlan id, the vlan is
* set in the vlan_id on return of the function. If not VLAN tagging need to
* be used with the FCF vlan_id will be set to LPFC_FCOE_NULL_VID;
**/
static int
lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
struct fcf_record *new_fcf_record,
uint32_t *boot_flag, uint32_t *addr_mode,
uint16_t *vlan_id)
{
struct lpfc_fcf_conn_entry *conn_entry;
int i, j, fcf_vlan_id = 0;
/* Find the lowest VLAN id in the FCF record */
for (i = 0; i < 512; i++) {
if (new_fcf_record->vlan_bitmap[i]) {
fcf_vlan_id = i * 8;
j = 0;
while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
j++;
fcf_vlan_id++;
}
break;
}
}
/* FCF not valid/available or solicitation in progress */
if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
!bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record) ||
bf_get(lpfc_fcf_record_fcf_sol, new_fcf_record))
return 0;
if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
*boot_flag = 0;
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record);
if (phba->valid_vlan)
*vlan_id = phba->vlan_id;
else
*vlan_id = LPFC_FCOE_NULL_VID;
return 1;
}
/*
* If there are no FCF connection table entry, driver connect to all
* FCFs.
*/
if (list_empty(&phba->fcf_conn_rec_list)) {
*boot_flag = 0;
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record);
/*
* When there are no FCF connect entries, use driver's default
* addressing mode - FPMA.
*/
if (*addr_mode & LPFC_FCF_FPMA)
*addr_mode = LPFC_FCF_FPMA;
/* If FCF record report a vlan id use that vlan id */
if (fcf_vlan_id)
*vlan_id = fcf_vlan_id;
else
*vlan_id = LPFC_FCOE_NULL_VID;
return 1;
}
list_for_each_entry(conn_entry,
&phba->fcf_conn_rec_list, list) {
if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
continue;
if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
!lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
new_fcf_record))
continue;
if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
!lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
new_fcf_record))
continue;
if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
/*
* If the vlan bit map does not have the bit set for the
* vlan id to be used, then it is not a match.
*/
if (!(new_fcf_record->vlan_bitmap
[conn_entry->conn_rec.vlan_tag / 8] &
(1 << (conn_entry->conn_rec.vlan_tag % 8))))
continue;
}
/*
* If connection record does not support any addressing mode,
* skip the FCF record.
*/
if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
& (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
continue;
/*
* Check if the connection record specifies a required
* addressing mode.
*/
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
/*
* If SPMA required but FCF not support this continue.
*/
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
!(bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record) & LPFC_FCF_SPMA))
continue;
/*
* If FPMA required but FCF not support this continue.
*/
if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
!(bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record) & LPFC_FCF_FPMA))
continue;
}
/*
* This fcf record matches filtering criteria.
*/
if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
*boot_flag = 1;
else
*boot_flag = 0;
/*
* If user did not specify any addressing mode, or if the
* preferred addressing mode specified by user is not supported
* by FCF, allow fabric to pick the addressing mode.
*/
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record);
/*
* If the user specified a required address mode, assign that
* address mode
*/
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
(!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
*addr_mode = (conn_entry->conn_rec.flags &
FCFCNCT_AM_SPMA) ?
LPFC_FCF_SPMA : LPFC_FCF_FPMA;
/*
* If the user specified a preferred address mode, use the
* addr mode only if FCF support the addr_mode.
*/
else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
(*addr_mode & LPFC_FCF_SPMA))
*addr_mode = LPFC_FCF_SPMA;
else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
(*addr_mode & LPFC_FCF_FPMA))
*addr_mode = LPFC_FCF_FPMA;
/* If matching connect list has a vlan id, use it */
if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
*vlan_id = conn_entry->conn_rec.vlan_tag;
/*
* If no vlan id is specified in connect list, use the vlan id
* in the FCF record
*/
else if (fcf_vlan_id)
*vlan_id = fcf_vlan_id;
else
*vlan_id = LPFC_FCOE_NULL_VID;
return 1;
}
return 0;
}
/**
* lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
* @phba: pointer to lpfc hba data structure.
* @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
*
* This function check if there is any fcoe event pending while driver
* scan FCF entries. If there is any pending event, it will restart the
* FCF saning and return 1 else return 0.
*/
int
lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
{
/*
* If the Link is up and no FCoE events while in the
* FCF discovery, no need to restart FCF discovery.
*/
if ((phba->link_state >= LPFC_LINK_UP) &&
(phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
return 0;
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2768 Pending link or FCF event during current "
"handling of the previous event: link_state:x%x, "
"evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
phba->fcoe_eventtag);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
spin_unlock_irq(&phba->hbalock);
if (phba->link_state >= LPFC_LINK_UP) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2780 Restart FCF table scan due to "
"pending FCF event:evt_tag_at_scan:x%x, "
"evt_tag_current:x%x\n",
phba->fcoe_eventtag_at_fcf_scan,
phba->fcoe_eventtag);
lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
} else {
/*
* Do not continue FCF discovery and clear FCF_TS_INPROG
* flag
*/
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2833 Stop FCF discovery process due to link "
"state change (x%x)\n", phba->link_state);
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~(FCF_TS_INPROG | FCF_RR_INPROG);
phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
spin_unlock_irq(&phba->hbalock);
}
/* Unregister the currently registered FCF if required */
if (unreg_fcf) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_REGISTERED;
spin_unlock_irq(&phba->hbalock);
lpfc_sli4_unregister_fcf(phba);
}
return 1;
}
/**
* lpfc_sli4_new_fcf_random_select - Randomly select an eligible new fcf record
* @phba: pointer to lpfc hba data structure.
* @fcf_cnt: number of eligible fcf record seen so far.
*
* This function makes an running random selection decision on FCF record to
* use through a sequence of @fcf_cnt eligible FCF records with equal
* probability. To perform integer manunipulation of random numbers with
* size unit32_t, a 16-bit random number returned from get_random_u16() is
* taken as the random random number generated.
*
* Returns true when outcome is for the newly read FCF record should be
* chosen; otherwise, return false when outcome is for keeping the previously
* chosen FCF record.
**/
static bool
lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
{
uint32_t rand_num;
/* Get 16-bit uniform random number */
rand_num = get_random_u16();
/* Decision with probability 1/fcf_cnt */
if ((fcf_cnt * rand_num) < 0xFFFF)
return true;
else
return false;
}
/**
* lpfc_sli4_fcf_rec_mbox_parse - Parse read_fcf mbox command.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
* @next_fcf_index: pointer to holder of next fcf index.
*
* This routine parses the non-embedded fcf mailbox command by performing the
* necessarily error checking, non-embedded read FCF record mailbox command
* SGE parsing, and endianness swapping.
*
* Returns the pointer to the new FCF record in the non-embedded mailbox
* command DMA memory if successfully, other NULL.
*/
static struct fcf_record *
lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
uint16_t *next_fcf_index)
{
void *virt_addr;
struct lpfc_mbx_sge sge;
struct lpfc_mbx_read_fcf_tbl *read_fcf;
uint32_t shdr_status, shdr_add_status, if_type;
union lpfc_sli4_cfg_shdr *shdr;
struct fcf_record *new_fcf_record;
/* Get the first SGE entry from the non-embedded DMA memory. This
* routine only uses a single SGE.
*/
lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
if (unlikely(!mboxq->sge_array)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2524 Failed to get the non-embedded SGE "
"virtual address\n");
return NULL;
}
virt_addr = mboxq->sge_array->addr[0];
shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
lpfc_sli_pcimem_bcopy(shdr, shdr,
sizeof(union lpfc_sli4_cfg_shdr));
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status) {
if (shdr_status == STATUS_FCF_TABLE_EMPTY ||
if_type == LPFC_SLI_INTF_IF_TYPE_2)
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"2726 READ_FCF_RECORD Indicates empty "
"FCF table.\n");
else
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2521 READ_FCF_RECORD mailbox failed "
"with status x%x add_status x%x, "
"mbx\n", shdr_status, shdr_add_status);
return NULL;
}
/* Interpreting the returned information of the FCF record */
read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
sizeof(struct lpfc_mbx_read_fcf_tbl));
*next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
new_fcf_record = (struct fcf_record *)(virt_addr +
sizeof(struct lpfc_mbx_read_fcf_tbl));
lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
offsetof(struct fcf_record, vlan_bitmap));
new_fcf_record->word137 = le32_to_cpu(new_fcf_record->word137);
new_fcf_record->word138 = le32_to_cpu(new_fcf_record->word138);
return new_fcf_record;
}
/**
* lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
* @phba: pointer to lpfc hba data structure.
* @fcf_record: pointer to the fcf record.
* @vlan_id: the lowest vlan identifier associated to this fcf record.
* @next_fcf_index: the index to the next fcf record in hba's fcf table.
*
* This routine logs the detailed FCF record if the LOG_FIP loggin is
* enabled.
**/
static void
lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
struct fcf_record *fcf_record,
uint16_t vlan_id,
uint16_t next_fcf_index)
{
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2764 READ_FCF_RECORD:\n"
"\tFCF_Index : x%x\n"
"\tFCF_Avail : x%x\n"
"\tFCF_Valid : x%x\n"
"\tFCF_SOL : x%x\n"
"\tFIP_Priority : x%x\n"
"\tMAC_Provider : x%x\n"
"\tLowest VLANID : x%x\n"
"\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
"\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
"\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
"\tNext_FCF_Index: x%x\n",
bf_get(lpfc_fcf_record_fcf_index, fcf_record),
bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
bf_get(lpfc_fcf_record_fcf_sol, fcf_record),
fcf_record->fip_priority,
bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
vlan_id,
bf_get(lpfc_fcf_record_mac_0, fcf_record),
bf_get(lpfc_fcf_record_mac_1, fcf_record),
bf_get(lpfc_fcf_record_mac_2, fcf_record),
bf_get(lpfc_fcf_record_mac_3, fcf_record),
bf_get(lpfc_fcf_record_mac_4, fcf_record),
bf_get(lpfc_fcf_record_mac_5, fcf_record),
bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
next_fcf_index);
}
/**
* lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
* @phba: pointer to lpfc hba data structure.
* @fcf_rec: pointer to an existing FCF record.
* @new_fcf_record: pointer to a new FCF record.
* @new_vlan_id: vlan id from the new FCF record.
*
* This function performs matching test of a new FCF record against an existing
* FCF record. If the new_vlan_id passed in is LPFC_FCOE_IGNORE_VID, vlan id
* will not be used as part of the FCF record matching criteria.
*
* Returns true if all the fields matching, otherwise returns false.
*/
static bool
lpfc_sli4_fcf_record_match(struct lpfc_hba *phba,
struct lpfc_fcf_rec *fcf_rec,
struct fcf_record *new_fcf_record,
uint16_t new_vlan_id)
{
if (new_vlan_id != LPFC_FCOE_IGNORE_VID)
if (!lpfc_vlan_id_match(fcf_rec->vlan_id, new_vlan_id))
return false;
if (!lpfc_mac_addr_match(fcf_rec->mac_addr, new_fcf_record))
return false;
if (!lpfc_sw_name_match(fcf_rec->switch_name, new_fcf_record))
return false;
if (!lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record))
return false;
if (fcf_rec->priority != new_fcf_record->fip_priority)
return false;
return true;
}
/**
* lpfc_sli4_fcf_rr_next_proc - processing next roundrobin fcf
* @vport: Pointer to vport object.
* @fcf_index: index to next fcf.
*
* This function processing the roundrobin fcf failover to next fcf index.
* When this function is invoked, there will be a current fcf registered
* for flogi.
* Return: 0 for continue retrying flogi on currently registered fcf;
* 1 for stop flogi on currently registered fcf;
*/
int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index)
{
struct lpfc_hba *phba = vport->phba;
int rc;
if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
spin_lock_irq(&phba->hbalock);
if (phba->hba_flag & HBA_DEVLOSS_TMO) {
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2872 Devloss tmo with no eligible "
"FCF, unregister in-use FCF (x%x) "
"and rescan FCF table\n",
phba->fcf.current_rec.fcf_indx);
lpfc_unregister_fcf_rescan(phba);
goto stop_flogi_current_fcf;
}
/* Mark the end to FLOGI roundrobin failover */
phba->hba_flag &= ~FCF_RR_INPROG;
/* Allow action to new fcf asynchronous event */
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2865 No FCF available, stop roundrobin FCF "
"failover and change port state:x%x/x%x\n",
phba->pport->port_state, LPFC_VPORT_UNKNOWN);
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
if (!phba->fcf.fcf_redisc_attempted) {
lpfc_unregister_fcf(phba);
rc = lpfc_sli4_redisc_fcf_table(phba);
if (!rc) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"3195 Rediscover FCF table\n");
phba->fcf.fcf_redisc_attempted = 1;
lpfc_sli4_clear_fcf_rr_bmask(phba);
} else {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"3196 Rediscover FCF table "
"failed. Status:x%x\n", rc);
}
} else {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"3197 Already rediscover FCF table "
"attempted. No more retry\n");
}
goto stop_flogi_current_fcf;
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS,
"2794 Try FLOGI roundrobin FCF failover to "
"(x%x)\n", fcf_index);
rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba, fcf_index);
if (rc)
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
"2761 FLOGI roundrobin FCF failover "
"failed (rc:x%x) to read FCF (x%x)\n",
rc, phba->fcf.current_rec.fcf_indx);
else
goto stop_flogi_current_fcf;
}
return 0;
stop_flogi_current_fcf:
lpfc_can_disctmo(vport);
return 1;
}
/**
* lpfc_sli4_fcf_pri_list_del
* @phba: pointer to lpfc hba data structure.
* @fcf_index: the index of the fcf record to delete
* This routine checks the on list flag of the fcf_index to be deleted.
* If it is one the list then it is removed from the list, and the flag
* is cleared. This routine grab the hbalock before removing the fcf
* record from the list.
**/
static void lpfc_sli4_fcf_pri_list_del(struct lpfc_hba *phba,
uint16_t fcf_index)
{
struct lpfc_fcf_pri *new_fcf_pri;
new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"3058 deleting idx x%x pri x%x flg x%x\n",
fcf_index, new_fcf_pri->fcf_rec.priority,
new_fcf_pri->fcf_rec.flag);
spin_lock_irq(&phba->hbalock);
if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST) {
if (phba->fcf.current_rec.priority ==
new_fcf_pri->fcf_rec.priority)
phba->fcf.eligible_fcf_cnt--;
list_del_init(&new_fcf_pri->list);
new_fcf_pri->fcf_rec.flag &= ~LPFC_FCF_ON_PRI_LIST;
}
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli4_set_fcf_flogi_fail
* @phba: pointer to lpfc hba data structure.
* @fcf_index: the index of the fcf record to update
* This routine acquires the hbalock and then set the LPFC_FCF_FLOGI_FAILED
* flag so the round robin selection for the particular priority level
* will try a different fcf record that does not have this bit set.
* If the fcf record is re-read for any reason this flag is cleared brfore
* adding it to the priority list.
**/
void
lpfc_sli4_set_fcf_flogi_fail(struct lpfc_hba *phba, uint16_t fcf_index)
{
struct lpfc_fcf_pri *new_fcf_pri;
new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
spin_lock_irq(&phba->hbalock);
new_fcf_pri->fcf_rec.flag |= LPFC_FCF_FLOGI_FAILED;
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli4_fcf_pri_list_add
* @phba: pointer to lpfc hba data structure.
* @fcf_index: the index of the fcf record to add
* @new_fcf_record: pointer to a new FCF record.
* This routine checks the priority of the fcf_index to be added.
* If it is a lower priority than the current head of the fcf_pri list
* then it is added to the list in the right order.
* If it is the same priority as the current head of the list then it
* is added to the head of the list and its bit in the rr_bmask is set.
* If the fcf_index to be added is of a higher priority than the current
* head of the list then the rr_bmask is cleared, its bit is set in the
* rr_bmask and it is added to the head of the list.
* returns:
* 0=success 1=failure
**/
static int lpfc_sli4_fcf_pri_list_add(struct lpfc_hba *phba,
uint16_t fcf_index,
struct fcf_record *new_fcf_record)
{
uint16_t current_fcf_pri;
uint16_t last_index;
struct lpfc_fcf_pri *fcf_pri;
struct lpfc_fcf_pri *next_fcf_pri;
struct lpfc_fcf_pri *new_fcf_pri;
int ret;
new_fcf_pri = &phba->fcf.fcf_pri[fcf_index];
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"3059 adding idx x%x pri x%x flg x%x\n",
fcf_index, new_fcf_record->fip_priority,
new_fcf_pri->fcf_rec.flag);
spin_lock_irq(&phba->hbalock);
if (new_fcf_pri->fcf_rec.flag & LPFC_FCF_ON_PRI_LIST)
list_del_init(&new_fcf_pri->list);
new_fcf_pri->fcf_rec.fcf_index = fcf_index;
new_fcf_pri->fcf_rec.priority = new_fcf_record->fip_priority;
if (list_empty(&phba->fcf.fcf_pri_list)) {
list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
ret = lpfc_sli4_fcf_rr_index_set(phba,
new_fcf_pri->fcf_rec.fcf_index);
goto out;
}
last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
LPFC_SLI4_FCF_TBL_INDX_MAX);
if (last_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
ret = 0; /* Empty rr list */
goto out;
}
current_fcf_pri = phba->fcf.fcf_pri[last_index].fcf_rec.priority;
if (new_fcf_pri->fcf_rec.priority <= current_fcf_pri) {
list_add(&new_fcf_pri->list, &phba->fcf.fcf_pri_list);
if (new_fcf_pri->fcf_rec.priority < current_fcf_pri) {
memset(phba->fcf.fcf_rr_bmask, 0,
sizeof(*phba->fcf.fcf_rr_bmask));
/* fcfs_at_this_priority_level = 1; */
phba->fcf.eligible_fcf_cnt = 1;
} else
/* fcfs_at_this_priority_level++; */
phba->fcf.eligible_fcf_cnt++;
ret = lpfc_sli4_fcf_rr_index_set(phba,
new_fcf_pri->fcf_rec.fcf_index);
goto out;
}
list_for_each_entry_safe(fcf_pri, next_fcf_pri,
&phba->fcf.fcf_pri_list, list) {
if (new_fcf_pri->fcf_rec.priority <=
fcf_pri->fcf_rec.priority) {
if (fcf_pri->list.prev == &phba->fcf.fcf_pri_list)
list_add(&new_fcf_pri->list,
&phba->fcf.fcf_pri_list);
else
list_add(&new_fcf_pri->list,
&((struct lpfc_fcf_pri *)
fcf_pri->list.prev)->list);
ret = 0;
goto out;
} else if (fcf_pri->list.next == &phba->fcf.fcf_pri_list
|| new_fcf_pri->fcf_rec.priority <
next_fcf_pri->fcf_rec.priority) {
list_add(&new_fcf_pri->list, &fcf_pri->list);
ret = 0;
goto out;
}
if (new_fcf_pri->fcf_rec.priority > fcf_pri->fcf_rec.priority)
continue;
}
ret = 1;
out:
/* we use = instead of |= to clear the FLOGI_FAILED flag. */
new_fcf_pri->fcf_rec.flag = LPFC_FCF_ON_PRI_LIST;
spin_unlock_irq(&phba->hbalock);
return ret;
}
/**
* lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
*
* This function iterates through all the fcf records available in
* HBA and chooses the optimal FCF record for discovery. After finding
* the FCF for discovery it registers the FCF record and kicks start
* discovery.
* If FCF_IN_USE flag is set in currently used FCF, the routine tries to
* use an FCF record which matches fabric name and mac address of the
* currently used FCF record.
* If the driver supports only one FCF, it will try to use the FCF record
* used by BOOT_BIOS.
*/
void
lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct fcf_record *new_fcf_record;
uint32_t boot_flag, addr_mode;
uint16_t fcf_index, next_fcf_index;
struct lpfc_fcf_rec *fcf_rec = NULL;
uint16_t vlan_id = LPFC_FCOE_NULL_VID;
bool select_new_fcf;
int rc;
/* If there is pending FCoE event restart FCF table scan */
if (lpfc_check_pending_fcoe_event(phba, LPFC_SKIP_UNREG_FCF)) {
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return;
}
/* Parse the FCF record from the non-embedded mailbox command */
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
&next_fcf_index);
if (!new_fcf_record) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2765 Mailbox command READ_FCF_RECORD "
"failed to retrieve a FCF record.\n");
/* Let next new FCF event trigger fast failover */
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~FCF_TS_INPROG;
spin_unlock_irq(&phba->hbalock);
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return;
}
/* Check the FCF record against the connection list */
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
&addr_mode, &vlan_id);
/* Log the FCF record information if turned on */
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
next_fcf_index);
/*
* If the fcf record does not match with connect list entries
* read the next entry; otherwise, this is an eligible FCF
* record for roundrobin FCF failover.
*/
if (!rc) {
lpfc_sli4_fcf_pri_list_del(phba,
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record));
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2781 FCF (x%x) failed connection "
"list check: (x%x/x%x/%x)\n",
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record),
bf_get(lpfc_fcf_record_fcf_avail,
new_fcf_record),
bf_get(lpfc_fcf_record_fcf_valid,
new_fcf_record),
bf_get(lpfc_fcf_record_fcf_sol,
new_fcf_record));
if ((phba->fcf.fcf_flag & FCF_IN_USE) &&
lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
new_fcf_record, LPFC_FCOE_IGNORE_VID)) {
if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) !=
phba->fcf.current_rec.fcf_indx) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"2862 FCF (x%x) matches property "
"of in-use FCF (x%x)\n",
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record),
phba->fcf.current_rec.fcf_indx);
goto read_next_fcf;
}
/*
* In case the current in-use FCF record becomes
* invalid/unavailable during FCF discovery that
* was not triggered by fast FCF failover process,
* treat it as fast FCF failover.
*/
if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND) &&
!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2835 Invalid in-use FCF "
"(x%x), enter FCF failover "
"table scan.\n",
phba->fcf.current_rec.fcf_indx);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag |= FCF_REDISC_FOV;
spin_unlock_irq(&phba->hbalock);
lpfc_sli4_mbox_cmd_free(phba, mboxq);
lpfc_sli4_fcf_scan_read_fcf_rec(phba,
LPFC_FCOE_FCF_GET_FIRST);
return;
}
}
goto read_next_fcf;
} else {
fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index,
new_fcf_record);
if (rc)
goto read_next_fcf;
}
/*
* If this is not the first FCF discovery of the HBA, use last
* FCF record for the discovery. The condition that a rescan
* matches the in-use FCF record: fabric name, switch name, mac
* address, and vlan_id.
*/
spin_lock_irq(&phba->hbalock);
if (phba->fcf.fcf_flag & FCF_IN_USE) {
if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
lpfc_sli4_fcf_record_match(phba, &phba->fcf.current_rec,
new_fcf_record, vlan_id)) {
if (bf_get(lpfc_fcf_record_fcf_index, new_fcf_record) ==
phba->fcf.current_rec.fcf_indx) {
phba->fcf.fcf_flag |= FCF_AVAILABLE;
if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
/* Stop FCF redisc wait timer */
__lpfc_sli4_stop_fcf_redisc_wait_timer(
phba);
else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
/* Fast failover, mark completed */
phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2836 New FCF matches in-use "
"FCF (x%x), port_state:x%x, "
"fc_flag:x%x\n",
phba->fcf.current_rec.fcf_indx,
phba->pport->port_state,
phba->pport->fc_flag);
goto out;
} else
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2863 New FCF (x%x) matches "
"property of in-use FCF (x%x)\n",
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record),
phba->fcf.current_rec.fcf_indx);
}
/*
* Read next FCF record from HBA searching for the matching
* with in-use record only if not during the fast failover
* period. In case of fast failover period, it shall try to
* determine whether the FCF record just read should be the
* next candidate.
*/
if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
}
}
/*
* Update on failover FCF record only if it's in FCF fast-failover
* period; otherwise, update on current FCF record.
*/
if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
fcf_rec = &phba->fcf.failover_rec;
else
fcf_rec = &phba->fcf.current_rec;
if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
/*
* If the driver FCF record does not have boot flag
* set and new hba fcf record has boot flag set, use
* the new hba fcf record.
*/
if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
/* Choose this FCF record */
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2837 Update current FCF record "
"(x%x) with new FCF record (x%x)\n",
fcf_rec->fcf_indx,
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record));
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
addr_mode, vlan_id, BOOT_ENABLE);
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
}
/*
* If the driver FCF record has boot flag set and the
* new hba FCF record does not have boot flag, read
* the next FCF record.
*/
if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
}
/*
* If the new hba FCF record has lower priority value
* than the driver FCF record, use the new record.
*/
if (new_fcf_record->fip_priority < fcf_rec->priority) {
/* Choose the new FCF record with lower priority */
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2838 Update current FCF record "
"(x%x) with new FCF record (x%x)\n",
fcf_rec->fcf_indx,
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record));
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
addr_mode, vlan_id, 0);
/* Reset running random FCF selection count */
phba->fcf.eligible_fcf_cnt = 1;
} else if (new_fcf_record->fip_priority == fcf_rec->priority) {
/* Update running random FCF selection count */
phba->fcf.eligible_fcf_cnt++;
select_new_fcf = lpfc_sli4_new_fcf_random_select(phba,
phba->fcf.eligible_fcf_cnt);
if (select_new_fcf) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2839 Update current FCF record "
"(x%x) with new FCF record (x%x)\n",
fcf_rec->fcf_indx,
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record));
/* Choose the new FCF by random selection */
__lpfc_update_fcf_record(phba, fcf_rec,
new_fcf_record,
addr_mode, vlan_id, 0);
}
}
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
}
/*
* This is the first suitable FCF record, choose this record for
* initial best-fit FCF.
*/
if (fcf_rec) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2840 Update initial FCF candidate "
"with FCF (x%x)\n",
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record));
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
addr_mode, vlan_id, (boot_flag ?
BOOT_ENABLE : 0));
phba->fcf.fcf_flag |= FCF_AVAILABLE;
/* Setup initial running random FCF selection count */
phba->fcf.eligible_fcf_cnt = 1;
}
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
read_next_fcf:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
/*
* Case of FCF fast failover scan
*/
/*
* It has not found any suitable FCF record, cancel
* FCF scan inprogress, and do nothing
*/
if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2782 No suitable FCF found: "
"(x%x/x%x)\n",
phba->fcoe_eventtag_at_fcf_scan,
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record));
spin_lock_irq(&phba->hbalock);
if (phba->hba_flag & HBA_DEVLOSS_TMO) {
phba->hba_flag &= ~FCF_TS_INPROG;
spin_unlock_irq(&phba->hbalock);
/* Unregister in-use FCF and rescan */
lpfc_printf_log(phba, KERN_INFO,
LOG_FIP,
"2864 On devloss tmo "
"unreg in-use FCF and "
"rescan FCF table\n");
lpfc_unregister_fcf_rescan(phba);
return;
}
/*
* Let next new FCF event trigger fast failover
*/
phba->hba_flag &= ~FCF_TS_INPROG;
spin_unlock_irq(&phba->hbalock);
return;
}
/*
* It has found a suitable FCF record that is not
* the same as in-use FCF record, unregister the
* in-use FCF record, replace the in-use FCF record
* with the new FCF record, mark FCF fast failover
* completed, and then start register the new FCF
* record.
*/
/* Unregister the current in-use FCF record */
lpfc_unregister_fcf(phba);
/* Replace in-use record with the new record */
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2842 Replace in-use FCF (x%x) "
"with failover FCF (x%x)\n",
phba->fcf.current_rec.fcf_indx,
phba->fcf.failover_rec.fcf_indx);
memcpy(&phba->fcf.current_rec,
&phba->fcf.failover_rec,
sizeof(struct lpfc_fcf_rec));
/*
* Mark the fast FCF failover rediscovery completed
* and the start of the first round of the roundrobin
* FCF failover.
*/
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
spin_unlock_irq(&phba->hbalock);
/* Register to the new FCF record */
lpfc_register_fcf(phba);
} else {
/*
* In case of transaction period to fast FCF failover,
* do nothing when search to the end of the FCF table.
*/
if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
(phba->fcf.fcf_flag & FCF_REDISC_PEND))
return;
if (phba->cfg_fcf_failover_policy == LPFC_FCF_FOV &&
phba->fcf.fcf_flag & FCF_IN_USE) {
/*
* In case the current in-use FCF record no
* longer existed during FCF discovery that
* was not triggered by fast FCF failover
* process, treat it as fast FCF failover.
*/
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2841 In-use FCF record (x%x) "
"not reported, entering fast "
"FCF failover mode scanning.\n",
phba->fcf.current_rec.fcf_indx);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag |= FCF_REDISC_FOV;
spin_unlock_irq(&phba->hbalock);
lpfc_sli4_fcf_scan_read_fcf_rec(phba,
LPFC_FCOE_FCF_GET_FIRST);
return;
}
/* Register to the new FCF record */
lpfc_register_fcf(phba);
}
} else
lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
return;
out:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
lpfc_register_fcf(phba);
return;
}
/**
* lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf roundrobin read_fcf mbox cmpl hdler
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
*
* This is the callback function for FLOGI failure roundrobin FCF failover
* read FCF record mailbox command from the eligible FCF record bmask for
* performing the failover. If the FCF read back is not valid/available, it
* fails through to retrying FLOGI to the currently registered FCF again.
* Otherwise, if the FCF read back is valid and available, it will set the
* newly read FCF record to the failover FCF record, unregister currently
* registered FCF record, copy the failover FCF record to the current
* FCF record, and then register the current FCF record before proceeding
* to trying FLOGI on the new failover FCF.
*/
void
lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct fcf_record *new_fcf_record;
uint32_t boot_flag, addr_mode;
uint16_t next_fcf_index, fcf_index;
uint16_t current_fcf_index;
uint16_t vlan_id = LPFC_FCOE_NULL_VID;
int rc;
/* If link state is not up, stop the roundrobin failover process */
if (phba->link_state < LPFC_LINK_UP) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
phba->hba_flag &= ~FCF_RR_INPROG;
spin_unlock_irq(&phba->hbalock);
goto out;
}
/* Parse the FCF record from the non-embedded mailbox command */
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
&next_fcf_index);
if (!new_fcf_record) {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2766 Mailbox command READ_FCF_RECORD "
"failed to retrieve a FCF record. "
"hba_flg x%x fcf_flg x%x\n", phba->hba_flag,
phba->fcf.fcf_flag);
lpfc_unregister_fcf_rescan(phba);
goto out;
}
/* Get the needed parameters from FCF record */
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
&addr_mode, &vlan_id);
/* Log the FCF record information if turned on */
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
next_fcf_index);
fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
if (!rc) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2848 Remove ineligible FCF (x%x) from "
"from roundrobin bmask\n", fcf_index);
/* Clear roundrobin bmask bit for ineligible FCF */
lpfc_sli4_fcf_rr_index_clear(phba, fcf_index);
/* Perform next round of roundrobin FCF failover */
fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
rc = lpfc_sli4_fcf_rr_next_proc(phba->pport, fcf_index);
if (rc)
goto out;
goto error_out;
}
if (fcf_index == phba->fcf.current_rec.fcf_indx) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2760 Perform FLOGI roundrobin FCF failover: "
"FCF (x%x) back to FCF (x%x)\n",
phba->fcf.current_rec.fcf_indx, fcf_index);
/* Wait 500 ms before retrying FLOGI to current FCF */
msleep(500);
lpfc_issue_init_vfi(phba->pport);
goto out;
}
/* Upload new FCF record to the failover FCF record */
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2834 Update current FCF (x%x) with new FCF (x%x)\n",
phba->fcf.failover_rec.fcf_indx, fcf_index);
spin_lock_irq(&phba->hbalock);
__lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
new_fcf_record, addr_mode, vlan_id,
(boot_flag ? BOOT_ENABLE : 0));
spin_unlock_irq(&phba->hbalock);
current_fcf_index = phba->fcf.current_rec.fcf_indx;
/* Unregister the current in-use FCF record */
lpfc_unregister_fcf(phba);
/* Replace in-use record with the new record */
memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
sizeof(struct lpfc_fcf_rec));
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2783 Perform FLOGI roundrobin FCF failover: FCF "
"(x%x) to FCF (x%x)\n", current_fcf_index, fcf_index);
error_out:
lpfc_register_fcf(phba);
out:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
}
/**
* lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
*
* This is the callback function of read FCF record mailbox command for
* updating the eligible FCF bmask for FLOGI failure roundrobin FCF
* failover when a new FCF event happened. If the FCF read back is
* valid/available and it passes the connection list check, it updates
* the bmask for the eligible FCF record for roundrobin failover.
*/
void
lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct fcf_record *new_fcf_record;
uint32_t boot_flag, addr_mode;
uint16_t fcf_index, next_fcf_index;
uint16_t vlan_id = LPFC_FCOE_NULL_VID;
int rc;
/* If link state is not up, no need to proceed */
if (phba->link_state < LPFC_LINK_UP)
goto out;
/* If FCF discovery period is over, no need to proceed */
if (!(phba->fcf.fcf_flag & FCF_DISCOVERY))
goto out;
/* Parse the FCF record from the non-embedded mailbox command */
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
&next_fcf_index);
if (!new_fcf_record) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2767 Mailbox command READ_FCF_RECORD "
"failed to retrieve a FCF record.\n");
goto out;
}
/* Check the connection list for eligibility */
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
&addr_mode, &vlan_id);
/* Log the FCF record information if turned on */
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
next_fcf_index);
if (!rc)
goto out;
/* Update the eligible FCF record index bmask */
fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
rc = lpfc_sli4_fcf_pri_list_add(phba, fcf_index, new_fcf_record);
out:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
}
/**
* lpfc_init_vfi_cmpl - Completion handler for init_vfi mbox command.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox data structure.
*
* This function handles completion of init vfi mailbox command.
*/
static void
lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
/*
* VFI not supported on interface type 0, just do the flogi
* Also continue if the VFI is in use - just use the same one.
*/
if (mboxq->u.mb.mbxStatus &&
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
LPFC_SLI_INTF_IF_TYPE_0) &&
mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2891 Init VFI mailbox failed 0x%x\n",
mboxq->u.mb.mbxStatus);
mempool_free(mboxq, phba->mbox_mem_pool);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
return;
}
lpfc_initial_flogi(vport);
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_issue_init_vfi - Issue init_vfi mailbox command.
* @vport: pointer to lpfc_vport data structure.
*
* This function issue a init_vfi mailbox command to initialize the VFI and
* VPI for the physical port.
*/
void
lpfc_issue_init_vfi(struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *mboxq;
int rc;
struct lpfc_hba *phba = vport->phba;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT, "2892 Failed to allocate "
"init_vfi mailbox\n");
return;
}
lpfc_init_vfi(mboxq, vport);
mboxq->mbox_cmpl = lpfc_init_vfi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2893 Failed to issue init_vfi mailbox\n");
mempool_free(mboxq, vport->phba->mbox_mem_pool);
}
}
/**
* lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox data structure.
*
* This function handles completion of init vpi mailbox command.
*/
void
lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2609 Init VPI mailbox failed 0x%x\n",
mboxq->u.mb.mbxStatus);
mempool_free(mboxq, phba->mbox_mem_pool);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
return;
}
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
spin_unlock_irq(shost->host_lock);
/* If this port is physical port or FDISC is done, do reg_vpi */
if ((phba->pport == vport) || (vport->port_state == LPFC_FDISC)) {
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (!ndlp)
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"2731 Cannot find fabric "
"controller node\n");
else
lpfc_register_new_vport(phba, vport, ndlp);
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
lpfc_initial_fdisc(vport);
else {
lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2606 No NPIV Fabric support\n");
}
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_issue_init_vpi - Issue init_vpi mailbox command.
* @vport: pointer to lpfc_vport data structure.
*
* This function issue a init_vpi mailbox command to initialize
* VPI for the vport.
*/
void
lpfc_issue_init_vpi(struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *mboxq;
int rc, vpi;
if ((vport->port_type != LPFC_PHYSICAL_PORT) && (!vport->vpi)) {
vpi = lpfc_alloc_vpi(vport->phba);
if (!vpi) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"3303 Failed to obtain vport vpi\n");
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
return;
}
vport->vpi = vpi;
}
mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT, "2607 Failed to allocate "
"init_vpi mailbox\n");
return;
}
lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
mboxq->vport = vport;
mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2608 Failed to issue init_vpi mailbox\n");
mempool_free(mboxq, vport->phba->mbox_mem_pool);
}
}
/**
* lpfc_start_fdiscs - send fdiscs for each vports on this port.
* @phba: pointer to lpfc hba data structure.
*
* This function loops through the list of vports on the @phba and issues an
* FDISC if possible.
*/
void
lpfc_start_fdiscs(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i;
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
continue;
/* There are no vpi for this vport */
if (vports[i]->vpi > phba->max_vpi) {
lpfc_vport_set_state(vports[i],
FC_VPORT_FAILED);
continue;
}
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
lpfc_vport_set_state(vports[i],
FC_VPORT_LINKDOWN);
continue;
}
if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
lpfc_issue_init_vpi(vports[i]);
continue;
}
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
lpfc_initial_fdisc(vports[i]);
else {
lpfc_vport_set_state(vports[i],
FC_VPORT_NO_FABRIC_SUPP);
lpfc_printf_vlog(vports[i], KERN_ERR,
LOG_TRACE_EVENT,
"0259 No NPIV "
"Fabric support\n");
}
}
}
lpfc_destroy_vport_work_array(phba, vports);
}
void
lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
/*
* VFI not supported for interface type 0, so ignore any mailbox
* error (except VFI in use) and continue with the discovery.
*/
if (mboxq->u.mb.mbxStatus &&
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
LPFC_SLI_INTF_IF_TYPE_0) &&
mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2018 REG_VFI mbxStatus error x%x "
"HBA state x%x\n",
mboxq->u.mb.mbxStatus, vport->port_state);
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
/* FLOGI failed, use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
goto out_free_mem;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
goto out_free_mem;
}
/* If the VFI is already registered, there is nothing else to do
* Unless this was a VFI update and we are in PT2PT mode, then
* we should drop through to set the port state to ready.
*/
if (vport->fc_flag & FC_VFI_REGISTERED)
if (!(phba->sli_rev == LPFC_SLI_REV4 &&
vport->fc_flag & FC_PT2PT))
goto out_free_mem;
/* The VPI is implicitly registered when the VFI is registered */
spin_lock_irq(shost->host_lock);
vport->vpi_state |= LPFC_VPI_REGISTERED;
vport->fc_flag |= FC_VFI_REGISTERED;
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
spin_unlock_irq(shost->host_lock);
/* In case SLI4 FC loopback test, we are ready */
if ((phba->sli_rev == LPFC_SLI_REV4) &&
(phba->link_flag & LS_LOOPBACK_MODE)) {
phba->link_state = LPFC_HBA_READY;
goto out_free_mem;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
"3313 cmpl reg vfi port_state:%x fc_flag:%x myDid:%x "
"alpacnt:%d LinkState:%x topology:%x\n",
vport->port_state, vport->fc_flag, vport->fc_myDID,
vport->phba->alpa_map[0],
phba->link_state, phba->fc_topology);
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
/*
* For private loop or for NPort pt2pt,
* just start discovery and we are done.
*/
if ((vport->fc_flag & FC_PT2PT) ||
((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
!(vport->fc_flag & FC_PUBLIC_LOOP))) {
/* Use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
if (vport->fc_flag & FC_PT2PT)
vport->port_state = LPFC_VPORT_READY;
else
lpfc_disc_start(vport);
} else {
lpfc_start_fdiscs(phba);
lpfc_do_scr_ns_plogi(phba, vport);
}
}
out_free_mem:
lpfc_mbox_rsrc_cleanup(phba, mboxq, MBOX_THD_UNLOCKED);
}
static void
lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct serv_parm *sp = &vport->fc_sparam;
uint32_t ed_tov;
/* Check for error */
if (mb->mbxStatus) {
/* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0319 READ_SPARAM mbxStatus error x%x "
"hba state x%x>\n",
mb->mbxStatus, vport->port_state);
lpfc_linkdown(phba);
goto out;
}
memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
sizeof (struct serv_parm));
ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
ed_tov = (ed_tov + 999999) / 1000000;
phba->fc_edtov = ed_tov;
phba->fc_ratov = (2 * ed_tov) / 1000;
if (phba->fc_ratov < FF_DEF_RATOV) {
/* RA_TOV should be atleast 10sec for initial flogi */
phba->fc_ratov = FF_DEF_RATOV;
}
lpfc_update_vport_wwn(vport);
fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
if (vport->port_type == LPFC_PHYSICAL_PORT) {
memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
}
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
/* Check if sending the FLOGI is being deferred to after we get
* up to date CSPs from MBX_READ_SPARAM.
*/
if (phba->hba_flag & HBA_DEFER_FLOGI) {
lpfc_initial_flogi(vport);
phba->hba_flag &= ~HBA_DEFER_FLOGI;
}
return;
out:
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
lpfc_issue_clear_la(phba, vport);
}
static void
lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
{
struct lpfc_vport *vport = phba->pport;
LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
struct Scsi_Host *shost;
int i;
int rc;
struct fcf_record *fcf_record;
uint32_t fc_flags = 0;
unsigned long iflags;
spin_lock_irqsave(&phba->hbalock, iflags);
phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
if (!(phba->hba_flag & HBA_FCOE_MODE)) {
switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
case LPFC_LINK_SPEED_1GHZ:
case LPFC_LINK_SPEED_2GHZ:
case LPFC_LINK_SPEED_4GHZ:
case LPFC_LINK_SPEED_8GHZ:
case LPFC_LINK_SPEED_10GHZ:
case LPFC_LINK_SPEED_16GHZ:
case LPFC_LINK_SPEED_32GHZ:
case LPFC_LINK_SPEED_64GHZ:
case LPFC_LINK_SPEED_128GHZ:
case LPFC_LINK_SPEED_256GHZ:
break;
default:
phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
break;
}
}
if (phba->fc_topology &&
phba->fc_topology != bf_get(lpfc_mbx_read_top_topology, la)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"3314 Toplogy changed was 0x%x is 0x%x\n",
phba->fc_topology,
bf_get(lpfc_mbx_read_top_topology, la));
phba->fc_topology_changed = 1;
}
phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
phba->link_flag &= ~(LS_NPIV_FAB_SUPPORTED | LS_CT_VEN_RPA);
shost = lpfc_shost_from_vport(vport);
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
/* if npiv is enabled and this adapter supports npiv log
* a message that npiv is not supported in this topology
*/
if (phba->cfg_enable_npiv && phba->max_vpi)
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1309 Link Up Event npiv not supported in loop "
"topology\n");
/* Get Loop Map information */
if (bf_get(lpfc_mbx_read_top_il, la))
fc_flags |= FC_LBIT;
vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
i = la->lilpBde64.tus.f.bdeSize;
if (i == 0) {
phba->alpa_map[0] = 0;
} else {
if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
int numalpa, j, k;
union {
uint8_t pamap[16];
struct {
uint32_t wd1;
uint32_t wd2;
uint32_t wd3;
uint32_t wd4;
} pa;
} un;
numalpa = phba->alpa_map[0];
j = 0;
while (j < numalpa) {
memset(un.pamap, 0, 16);
for (k = 1; j < numalpa; k++) {
un.pamap[k - 1] =
phba->alpa_map[j + 1];
j++;
if (k == 16)
break;
}
/* Link Up Event ALPA map */
lpfc_printf_log(phba,
KERN_WARNING,
LOG_LINK_EVENT,
"1304 Link Up Event "
"ALPA map Data: x%x "
"x%x x%x x%x\n",
un.pa.wd1, un.pa.wd2,
un.pa.wd3, un.pa.wd4);
}
}
}
} else {
if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
if (phba->max_vpi && phba->cfg_enable_npiv &&
(phba->sli_rev >= LPFC_SLI_REV3))
phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
}
vport->fc_myDID = phba->fc_pref_DID;
fc_flags |= FC_LBIT;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
if (fc_flags) {
spin_lock_irqsave(shost->host_lock, iflags);
vport->fc_flag |= fc_flags;
spin_unlock_irqrestore(shost->host_lock, iflags);
}
lpfc_linkup(phba);
sparam_mbox = NULL;
sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!sparam_mbox)
goto out;
rc = lpfc_read_sparam(phba, sparam_mbox, 0);
if (rc) {
mempool_free(sparam_mbox, phba->mbox_mem_pool);
goto out;
}
sparam_mbox->vport = vport;
sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_mbox_rsrc_cleanup(phba, sparam_mbox, MBOX_THD_UNLOCKED);
goto out;
}
if (!(phba->hba_flag & HBA_FCOE_MODE)) {
cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!cfglink_mbox)
goto out;
vport->port_state = LPFC_LOCAL_CFG_LINK;
lpfc_config_link(phba, cfglink_mbox);
cfglink_mbox->vport = vport;
cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(cfglink_mbox, phba->mbox_mem_pool);
goto out;
}
} else {
vport->port_state = LPFC_VPORT_UNKNOWN;
/*
* Add the driver's default FCF record at FCF index 0 now. This
* is phase 1 implementation that support FCF index 0 and driver
* defaults.
*/
if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
fcf_record = kzalloc(sizeof(struct fcf_record),
GFP_KERNEL);
if (unlikely(!fcf_record)) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"2554 Could not allocate memory for "
"fcf record\n");
rc = -ENODEV;
goto out;
}
lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
LPFC_FCOE_FCF_DEF_INDEX);
rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR,
LOG_TRACE_EVENT,
"2013 Could not manually add FCF "
"record 0, status %d\n", rc);
rc = -ENODEV;
kfree(fcf_record);
goto out;
}
kfree(fcf_record);
}
/*
* The driver is expected to do FIP/FCF. Call the port
* and get the FCF Table.
*/
spin_lock_irqsave(&phba->hbalock, iflags);
if (phba->hba_flag & FCF_TS_INPROG) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
return;
}
/* This is the initial FCF discovery scan */
phba->fcf.fcf_flag |= FCF_INIT_DISC;
spin_unlock_irqrestore(&phba->hbalock, iflags);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2778 Start FCF table scan at linkup\n");
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
LPFC_FCOE_FCF_GET_FIRST);
if (rc) {
spin_lock_irqsave(&phba->hbalock, iflags);
phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto out;
}
/* Reset FCF roundrobin bmask for new discovery */
lpfc_sli4_clear_fcf_rr_bmask(phba);
}
/* Prepare for LINK up registrations */
memset(phba->os_host_name, 0, sizeof(phba->os_host_name));
scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s",
init_utsname()->nodename);
return;
out:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0263 Discovery Mailbox error: state: 0x%x : x%px x%px\n",
vport->port_state, sparam_mbox, cfglink_mbox);
lpfc_issue_clear_la(phba, vport);
return;
}
static void
lpfc_enable_la(struct lpfc_hba *phba)
{
uint32_t control;
struct lpfc_sli *psli = &phba->sli;
spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_PROCESS_LA;
if (phba->sli_rev <= LPFC_SLI_REV3) {
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
spin_unlock_irq(&phba->hbalock);
}
static void
lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
{
lpfc_linkdown(phba);
lpfc_enable_la(phba);
lpfc_unregister_unused_fcf(phba);
/* turn on Link Attention interrupts - no CLEAR_LA needed */
}
/*
* This routine handles processing a READ_TOPOLOGY mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer. SLI4 only.
*/
void
lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_mbx_read_top *la;
struct lpfc_sli_ring *pring;
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
uint8_t attn_type;
unsigned long iflags;
/* Unblock ELS traffic */
pring = lpfc_phba_elsring(phba);
if (pring)
pring->flag &= ~LPFC_STOP_IOCB_EVENT;
/* Check for error */
if (mb->mbxStatus) {
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
"1307 READ_LA mbox error x%x state x%x\n",
mb->mbxStatus, vport->port_state);
lpfc_mbx_issue_link_down(phba);
phba->link_state = LPFC_HBA_ERROR;
goto lpfc_mbx_cmpl_read_topology_free_mbuf;
}
la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
attn_type = bf_get(lpfc_mbx_read_top_att_type, la);
memcpy(&phba->alpa_map[0], mp->virt, 128);
spin_lock_irqsave(shost->host_lock, iflags);
if (bf_get(lpfc_mbx_read_top_pb, la))
vport->fc_flag |= FC_BYPASSED_MODE;
else
vport->fc_flag &= ~FC_BYPASSED_MODE;
spin_unlock_irqrestore(shost->host_lock, iflags);
if (phba->fc_eventTag <= la->eventTag) {
phba->fc_stat.LinkMultiEvent++;
if (attn_type == LPFC_ATT_LINK_UP)
if (phba->fc_eventTag != 0)
lpfc_linkdown(phba);
}
phba->fc_eventTag = la->eventTag;
phba->link_events++;
if (attn_type == LPFC_ATT_LINK_UP) {
phba->fc_stat.LinkUp++;
if (phba->link_flag & LS_LOOPBACK_MODE) {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1306 Link Up Event in loop back mode "
"x%x received Data: x%x x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
bf_get(lpfc_mbx_read_top_alpa_granted,
la),
bf_get(lpfc_mbx_read_top_link_spd, la),
phba->alpa_map[0]);
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1303 Link Up Event x%x received "
"Data: x%x x%x x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
bf_get(lpfc_mbx_read_top_alpa_granted,
la),
bf_get(lpfc_mbx_read_top_link_spd, la),
phba->alpa_map[0],
bf_get(lpfc_mbx_read_top_fa, la));
}
lpfc_mbx_process_link_up(phba, la);
if (phba->cmf_active_mode != LPFC_CFG_OFF)
lpfc_cmf_signal_init(phba);
if (phba->lmt & LMT_64Gb)
lpfc_read_lds_params(phba);
} else if (attn_type == LPFC_ATT_LINK_DOWN ||
attn_type == LPFC_ATT_UNEXP_WWPN) {
phba->fc_stat.LinkDown++;
if (phba->link_flag & LS_LOOPBACK_MODE)
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1308 Link Down Event in loop back mode "
"x%x received "
"Data: x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag);
else if (attn_type == LPFC_ATT_UNEXP_WWPN)
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1313 Link Down Unexpected FA WWPN Event x%x "
"received Data: x%x x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag,
bf_get(lpfc_mbx_read_top_fa, la));
else
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1305 Link Down Event x%x received "
"Data: x%x x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag,
bf_get(lpfc_mbx_read_top_fa, la));
lpfc_mbx_issue_link_down(phba);
}
if ((phba->sli_rev < LPFC_SLI_REV4) &&
bf_get(lpfc_mbx_read_top_fa, la))
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
"1311 fa %d\n",
bf_get(lpfc_mbx_read_top_fa, la));
lpfc_mbx_cmpl_read_topology_free_mbuf:
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
}
/*
* This routine handles processing a REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
/* The driver calls the state machine with the pmb pointer
* but wants to make sure a stale ctx_buf isn't acted on.
* The ctx_buf is restored later and cleaned up.
*/
pmb->ctx_buf = NULL;
pmb->ctx_ndlp = NULL;
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI | LOG_NODE | LOG_DISCOVERY,
"0002 rpi:%x DID:%x flg:%x %d x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
kref_read(&ndlp->kref),
ndlp);
if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
if (ndlp->nlp_flag & NLP_IGNR_REG_CMPL ||
ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) {
/* We rcvd a rscn after issuing this
* mbox reg login, we may have cycled
* back through the state and be
* back at reg login state so this
* mbox needs to be ignored becase
* there is another reg login in
* process.
*/
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
spin_unlock_irq(&ndlp->lock);
/*
* We cannot leave the RPI registered because
* if we go thru discovery again for this ndlp
* a subsequent REG_RPI will fail.
*/
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
lpfc_unreg_rpi(vport, ndlp);
}
/* Call state machine */
lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
pmb->ctx_buf = mp;
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
/* decrement the node reference count held for this callback
* function.
*/
lpfc_nlp_put(ndlp);
return;
}
static void
lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
switch (mb->mbxStatus) {
case 0x0011:
case 0x0020:
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0911 cmpl_unreg_vpi, mb status = 0x%x\n",
mb->mbxStatus);
break;
/* If VPI is busy, reset the HBA */
case 0x9700:
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"2798 Unreg_vpi failed vpi 0x%x, mb status = 0x%x\n",
vport->vpi, mb->mbxStatus);
if (!(phba->pport->load_flag & FC_UNLOADING))
lpfc_workq_post_event(phba, NULL, NULL,
LPFC_EVT_RESET_HBA);
}
spin_lock_irq(shost->host_lock);
vport->vpi_state &= ~LPFC_VPI_REGISTERED;
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
mempool_free(pmb, phba->mbox_mem_pool);
lpfc_cleanup_vports_rrqs(vport, NULL);
/*
* This shost reference might have been taken at the beginning of
* lpfc_vport_delete()
*/
if ((vport->load_flag & FC_UNLOADING) && (vport != phba->pport))
scsi_host_put(shost);
}
int
lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return 1;
lpfc_unreg_vpi(phba, vport->vpi, mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1800 Could not issue unreg_vpi\n");
mempool_free(mbox, phba->mbox_mem_pool);
return rc;
}
return 0;
}
static void
lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
MAILBOX_t *mb = &pmb->u.mb;
switch (mb->mbxStatus) {
case 0x0011:
case 0x9601:
case 0x9602:
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0912 cmpl_reg_vpi, mb status = 0x%x\n",
mb->mbxStatus);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
spin_unlock_irq(shost->host_lock);
vport->fc_myDID = 0;
if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
if (phba->nvmet_support)
lpfc_nvmet_update_targetport(phba);
else
lpfc_nvme_update_localport(vport);
}
goto out;
}
spin_lock_irq(shost->host_lock);
vport->vpi_state |= LPFC_VPI_REGISTERED;
vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
vport->num_disc_nodes = 0;
/* go thru NPR list and issue ELS PLOGIs */
if (vport->fc_npr_cnt)
lpfc_els_disc_plogi(vport);
if (!vport->num_disc_nodes) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
}
vport->port_state = LPFC_VPORT_READY;
out:
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
/**
* lpfc_create_static_vport - Read HBA config region to create static vports.
* @phba: pointer to lpfc hba data structure.
*
* This routine issue a DUMP mailbox command for config region 22 to get
* the list of static vports to be created. The function create vports
* based on the information returned from the HBA.
**/
void
lpfc_create_static_vport(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *pmb = NULL;
MAILBOX_t *mb;
struct static_vport_info *vport_info;
int mbx_wait_rc = 0, i;
struct fc_vport_identifiers vport_id;
struct fc_vport *new_fc_vport;
struct Scsi_Host *shost;
struct lpfc_vport *vport;
uint16_t offset = 0;
uint8_t *vport_buff;
struct lpfc_dmabuf *mp;
uint32_t byte_count = 0;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0542 lpfc_create_static_vport failed to"
" allocate mailbox memory\n");
return;
}
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb = &pmb->u.mb;
vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
if (!vport_info) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0543 lpfc_create_static_vport failed to"
" allocate vport_info\n");
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
vport_buff = (uint8_t *) vport_info;
do {
/* While loop iteration forces a free dma buffer from
* the previous loop because the mbox is reused and
* the dump routine is a single-use construct.
*/
if (pmb->ctx_buf) {
mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
pmb->ctx_buf = NULL;
}
if (lpfc_dump_static_vport(phba, pmb, offset))
goto out;
pmb->vport = phba->pport;
mbx_wait_rc = lpfc_sli_issue_mbox_wait(phba, pmb,
LPFC_MBOX_TMO);
if ((mbx_wait_rc != MBX_SUCCESS) || mb->mbxStatus) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0544 lpfc_create_static_vport failed to"
" issue dump mailbox command ret 0x%x "
"status 0x%x\n",
mbx_wait_rc, mb->mbxStatus);
goto out;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
byte_count = pmb->u.mqe.un.mb_words[5];
mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
if (byte_count > sizeof(struct static_vport_info) -
offset)
byte_count = sizeof(struct static_vport_info)
- offset;
memcpy(vport_buff + offset, mp->virt, byte_count);
offset += byte_count;
} else {
if (mb->un.varDmp.word_cnt >
sizeof(struct static_vport_info) - offset)
mb->un.varDmp.word_cnt =
sizeof(struct static_vport_info)
- offset;
byte_count = mb->un.varDmp.word_cnt;
lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
vport_buff + offset,
byte_count);
offset += byte_count;
}
} while (byte_count &&
offset < sizeof(struct static_vport_info));
if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
!= VPORT_INFO_REV)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0545 lpfc_create_static_vport bad"
" information header 0x%x 0x%x\n",
le32_to_cpu(vport_info->signature),
le32_to_cpu(vport_info->rev) &
VPORT_INFO_REV_MASK);
goto out;
}
shost = lpfc_shost_from_vport(phba->pport);
for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
memset(&vport_id, 0, sizeof(vport_id));
vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
if (!vport_id.port_name || !vport_id.node_name)
continue;
vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
vport_id.vport_type = FC_PORTTYPE_NPIV;
vport_id.disable = false;
new_fc_vport = fc_vport_create(shost, 0, &vport_id);
if (!new_fc_vport) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0546 lpfc_create_static_vport failed to"
" create vport\n");
continue;
}
vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
vport->vport_flag |= STATIC_VPORT;
}
out:
kfree(vport_info);
if (mbx_wait_rc != MBX_TIMEOUT)
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
}
/*
* This routine handles processing a Fabric REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
struct Scsi_Host *shost;
pmb->ctx_ndlp = NULL;
if (mb->mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0258 Register Fabric login error: 0x%x\n",
mb->mbxStatus);
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
/* FLOGI failed, use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
/* Decrement the reference count to ndlp after the
* reference to the ndlp are done.
*/
lpfc_nlp_put(ndlp);
return;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
/* Decrement the reference count to ndlp after the reference
* to the ndlp are done.
*/
lpfc_nlp_put(ndlp);
return;
}
if (phba->sli_rev < LPFC_SLI_REV4)
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
/* when physical port receive logo donot start
* vport discovery */
if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
lpfc_start_fdiscs(phba);
else {
shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
spin_unlock_irq(shost->host_lock);
}
lpfc_do_scr_ns_plogi(phba, vport);
}
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
/* Drop the reference count from the mbox at the end after
* all the current reference to the ndlp have been done.
*/
lpfc_nlp_put(ndlp);
return;
}
/*
* This routine will issue a GID_FT for each FC4 Type supported
* by the driver. ALL GID_FTs must complete before discovery is started.
*/
int
lpfc_issue_gidft(struct lpfc_vport *vport)
{
/* Good status, issue CT Request to NameServer */
if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) {
if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_FCP)) {
/* Cannot issue NameServer FCP Query, so finish up
* discovery
*/
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0604 %s FC TYPE %x %s\n",
"Failed to issue GID_FT to ",
FC_TYPE_FCP,
"Finishing discovery.");
return 0;
}
vport->gidft_inp++;
}
if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, SLI_CTPT_NVME)) {
/* Cannot issue NameServer NVME Query, so finish up
* discovery
*/
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0605 %s FC_TYPE %x %s %d\n",
"Failed to issue GID_FT to ",
FC_TYPE_NVME,
"Finishing discovery: gidftinp ",
vport->gidft_inp);
if (vport->gidft_inp == 0)
return 0;
} else
vport->gidft_inp++;
}
return vport->gidft_inp;
}
/**
* lpfc_issue_gidpt - issue a GID_PT for all N_Ports
* @vport: The virtual port for which this call is being executed.
*
* This routine will issue a GID_PT to get a list of all N_Ports
*
* Return value :
* 0 - Failure to issue a GID_PT
* 1 - GID_PT issued
**/
int
lpfc_issue_gidpt(struct lpfc_vport *vport)
{
/* Good status, issue CT Request to NameServer */
if (lpfc_ns_cmd(vport, SLI_CTNS_GID_PT, 0, GID_PT_N_PORT)) {
/* Cannot issue NameServer FCP Query, so finish up
* discovery
*/
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0606 %s Port TYPE %x %s\n",
"Failed to issue GID_PT to ",
GID_PT_N_PORT,
"Finishing discovery.");
return 0;
}
vport->gidft_inp++;
return 1;
}
/*
* This routine handles processing a NameServer REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
struct lpfc_vport *vport = pmb->vport;
int rc;
pmb->ctx_ndlp = NULL;
vport->gidft_inp = 0;
if (mb->mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0260 Register NameServer error: 0x%x\n",
mb->mbxStatus);
out:
/* decrement the node reference count held for this
* callback function.
*/
lpfc_nlp_put(ndlp);
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
/* If the node is not registered with the scsi or nvme
* transport, remove the fabric node. The failed reg_login
* is terminal and forces the removal of the last node
* reference.
*/
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
lpfc_nlp_put(ndlp);
}
if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
/*
* RegLogin failed, use loop map to make discovery
* list
*/
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
return;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
return;
}
if (phba->sli_rev < LPFC_SLI_REV4)
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
"0003 rpi:%x DID:%x flg:%x %d x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
kref_read(&ndlp->kref),
ndlp);
if (vport->port_state < LPFC_VPORT_READY) {
/* Link up discovery requires Fabric registration. */
lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP))
lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, FC_TYPE_FCP);
if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME))
lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0,
FC_TYPE_NVME);
/* Issue SCR just before NameServer GID_FT Query */
lpfc_issue_els_scr(vport, 0);
/* Link was bounced or a Fabric LOGO occurred. Start EDC
* with initial FW values provided the congestion mode is
* not off. Note that signals may or may not be supported
* by the adapter but FPIN is provided by default for 1
* or both missing signals support.
*/
if (phba->cmf_active_mode != LPFC_CFG_OFF) {
phba->cgn_reg_fpin = phba->cgn_init_reg_fpin;
phba->cgn_reg_signal = phba->cgn_init_reg_signal;
rc = lpfc_issue_els_edc(vport, 0);
lpfc_printf_log(phba, KERN_INFO,
LOG_INIT | LOG_ELS | LOG_DISCOVERY,
"4220 Issue EDC status x%x Data x%x\n",
rc, phba->cgn_init_reg_signal);
} else if (phba->lmt & LMT_64Gb) {
/* may send link fault capability descriptor */
lpfc_issue_els_edc(vport, 0);
} else {
lpfc_issue_els_rdf(vport, 0);
}
}
vport->fc_ns_retry = 0;
if (lpfc_issue_gidft(vport) == 0)
goto out;
/*
* At this point in time we may need to wait for multiple
* SLI_CTNS_GID_FT CT commands to complete before we start discovery.
*
* decrement the node reference count held for this
* callback function.
*/
lpfc_nlp_put(ndlp);
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
return;
}
/*
* This routine handles processing a Fabric Controller REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_fc_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
pmb->ctx_ndlp = NULL;
if (mb->mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0933 %s: Register FC login error: 0x%x\n",
__func__, mb->mbxStatus);
goto out;
}
lpfc_check_nlp_post_devloss(vport, ndlp);
if (phba->sli_rev < LPFC_SLI_REV4)
ndlp->nlp_rpi = mb->un.varWords[0];
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0934 %s: Complete FC x%x RegLogin rpi x%x ste x%x\n",
__func__, ndlp->nlp_DID, ndlp->nlp_rpi,
ndlp->nlp_state);
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
out:
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
/* Drop the reference count from the mbox at the end after
* all the current reference to the ndlp have been done.
*/
lpfc_nlp_put(ndlp);
}
static void
lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct fc_rport *rport;
struct lpfc_rport_data *rdata;
struct fc_rport_identifiers rport_ids;
struct lpfc_hba *phba = vport->phba;
unsigned long flags;
if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
return;
/* Remote port has reappeared. Re-register w/ FC transport */
rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
rport_ids.port_id = ndlp->nlp_DID;
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport add: did:x%x flg:x%x type x%x",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
/* Don't add the remote port if unloading. */
if (vport->load_flag & FC_UNLOADING)
return;
ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
if (!rport) {
dev_printk(KERN_WARNING, &phba->pcidev->dev,
"Warning: fc_remote_port_add failed\n");
return;
}
/* Successful port add. Complete initializing node data */
rport->maxframe_size = ndlp->nlp_maxframe;
rport->supported_classes = ndlp->nlp_class_sup;
rdata = rport->dd_data;
rdata->pnode = lpfc_nlp_get(ndlp);
if (!rdata->pnode) {
dev_warn(&phba->pcidev->dev,
"Warning - node ref failed. Unreg rport\n");
fc_remote_port_delete(rport);
ndlp->rport = NULL;
return;
}
spin_lock_irqsave(&ndlp->lock, flags);
ndlp->fc4_xpt_flags |= SCSI_XPT_REGD;
spin_unlock_irqrestore(&ndlp->lock, flags);
if (ndlp->nlp_type & NLP_FCP_TARGET)
rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
if (ndlp->nlp_type & NLP_NVME_INITIATOR)
rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
if (ndlp->nlp_type & NLP_NVME_TARGET)
rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
if (ndlp->nlp_type & NLP_NVME_DISCOVERY)
rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
fc_remote_port_rolechg(rport, rport_ids.roles);
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
"3183 %s rport x%px DID x%x, role x%x refcnt %d\n",
__func__, rport, rport->port_id, rport->roles,
kref_read(&ndlp->kref));
if ((rport->scsi_target_id != -1) &&
(rport->scsi_target_id < LPFC_MAX_TARGET)) {
ndlp->nlp_sid = rport->scsi_target_id;
}
return;
}
static void
lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
{
struct fc_rport *rport = ndlp->rport;
struct lpfc_vport *vport = ndlp->vport;
if (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
return;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport delete: did:x%x flg:x%x type x%x",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"3184 rport unregister x%06x, rport x%px "
"xptflg x%x refcnt %d\n",
ndlp->nlp_DID, rport, ndlp->fc4_xpt_flags,
kref_read(&ndlp->kref));
fc_remote_port_delete(rport);
lpfc_nlp_put(ndlp);
}
static void
lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
unsigned long iflags;
spin_lock_irqsave(shost->host_lock, iflags);
switch (state) {
case NLP_STE_UNUSED_NODE:
vport->fc_unused_cnt += count;
break;
case NLP_STE_PLOGI_ISSUE:
vport->fc_plogi_cnt += count;
break;
case NLP_STE_ADISC_ISSUE:
vport->fc_adisc_cnt += count;
break;
case NLP_STE_REG_LOGIN_ISSUE:
vport->fc_reglogin_cnt += count;
break;
case NLP_STE_PRLI_ISSUE:
vport->fc_prli_cnt += count;
break;
case NLP_STE_UNMAPPED_NODE:
vport->fc_unmap_cnt += count;
break;
case NLP_STE_MAPPED_NODE:
vport->fc_map_cnt += count;
break;
case NLP_STE_NPR_NODE:
if (vport->fc_npr_cnt == 0 && count == -1)
vport->fc_npr_cnt = 0;
else
vport->fc_npr_cnt += count;
break;
}
spin_unlock_irqrestore(shost->host_lock, iflags);
}
/* Register a node with backend if not already done */
void
lpfc_nlp_reg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
unsigned long iflags;
lpfc_check_nlp_post_devloss(vport, ndlp);
spin_lock_irqsave(&ndlp->lock, iflags);
if (ndlp->fc4_xpt_flags & NLP_XPT_REGD) {
/* Already registered with backend, trigger rescan */
spin_unlock_irqrestore(&ndlp->lock, iflags);
if (ndlp->fc4_xpt_flags & NVME_XPT_REGD &&
ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_DISCOVERY)) {
lpfc_nvme_rescan_port(vport, ndlp);
}
return;
}
ndlp->fc4_xpt_flags |= NLP_XPT_REGD;
spin_unlock_irqrestore(&ndlp->lock, iflags);
if (lpfc_valid_xpt_node(ndlp)) {
vport->phba->nport_event_cnt++;
/*
* Tell the fc transport about the port, if we haven't
* already. If we have, and it's a scsi entity, be
*/
lpfc_register_remote_port(vport, ndlp);
}
/* We are done if we do not have any NVME remote node */
if (!(ndlp->nlp_fc4_type & NLP_FC4_NVME))
return;
/* Notify the NVME transport of this new rport. */
if (vport->phba->sli_rev >= LPFC_SLI_REV4 &&
ndlp->nlp_fc4_type & NLP_FC4_NVME) {
if (vport->phba->nvmet_support == 0) {
/* Register this rport with the transport.
* Only NVME Target Rports are registered with
* the transport.
*/
if (ndlp->nlp_type & NLP_NVME_TARGET) {
vport->phba->nport_event_cnt++;
lpfc_nvme_register_port(vport, ndlp);
}
} else {
/* Just take an NDLP ref count since the
* target does not register rports.
*/
lpfc_nlp_get(ndlp);
}
}
}
/* Unregister a node with backend if not already done */
void
lpfc_nlp_unreg_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
unsigned long iflags;
spin_lock_irqsave(&ndlp->lock, iflags);
if (!(ndlp->fc4_xpt_flags & NLP_XPT_REGD)) {
spin_unlock_irqrestore(&ndlp->lock, iflags);
lpfc_printf_vlog(vport, KERN_INFO,
LOG_ELS | LOG_NODE | LOG_DISCOVERY,
"0999 %s Not regd: ndlp x%px rport x%px DID "
"x%x FLG x%x XPT x%x\n",
__func__, ndlp, ndlp->rport, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->fc4_xpt_flags);
return;
}
ndlp->fc4_xpt_flags &= ~NLP_XPT_REGD;
spin_unlock_irqrestore(&ndlp->lock, iflags);
if (ndlp->rport &&
ndlp->fc4_xpt_flags & SCSI_XPT_REGD) {
vport->phba->nport_event_cnt++;
lpfc_unregister_remote_port(ndlp);
} else if (!ndlp->rport) {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_ELS | LOG_NODE | LOG_DISCOVERY,
"1999 %s NDLP in devloss x%px DID x%x FLG x%x"
" XPT x%x refcnt %u\n",
__func__, ndlp, ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->fc4_xpt_flags,
kref_read(&ndlp->kref));
}
if (ndlp->fc4_xpt_flags & NVME_XPT_REGD) {
vport->phba->nport_event_cnt++;
if (vport->phba->nvmet_support == 0) {
/* Start devloss if target. */
if (ndlp->nlp_type & NLP_NVME_TARGET)
lpfc_nvme_unregister_port(vport, ndlp);
} else {
/* NVMET has no upcall. */
lpfc_nlp_put(ndlp);
}
}
}
/*
* Adisc state change handling
*/
static void
lpfc_handle_adisc_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
int new_state)
{
switch (new_state) {
/*
* Any state to ADISC_ISSUE
* Do nothing, adisc cmpl handling will trigger state changes
*/
case NLP_STE_ADISC_ISSUE:
break;
/*
* ADISC_ISSUE to mapped states
* Trigger a registration with backend, it will be nop if
* already registered
*/
case NLP_STE_UNMAPPED_NODE:
ndlp->nlp_type |= NLP_FC_NODE;
fallthrough;
case NLP_STE_MAPPED_NODE:
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
lpfc_nlp_reg_node(vport, ndlp);
break;
/*
* ADISC_ISSUE to non-mapped states
* We are moving from ADISC_ISSUE to a non-mapped state because
* ADISC failed, we would have skipped unregistering with
* backend, attempt it now
*/
case NLP_STE_NPR_NODE:
ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
fallthrough;
default:
lpfc_nlp_unreg_node(vport, ndlp);
break;
}
}
static void
lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
int old_state, int new_state)
{
/* Trap ADISC changes here */
if (new_state == NLP_STE_ADISC_ISSUE ||
old_state == NLP_STE_ADISC_ISSUE) {
lpfc_handle_adisc_state(vport, ndlp, new_state);
return;
}
if (new_state == NLP_STE_UNMAPPED_NODE) {
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
ndlp->nlp_type |= NLP_FC_NODE;
}
if (new_state == NLP_STE_MAPPED_NODE)
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
if (new_state == NLP_STE_NPR_NODE)
ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
/* Reg/Unreg for FCP and NVME Transport interface */
if ((old_state == NLP_STE_MAPPED_NODE ||
old_state == NLP_STE_UNMAPPED_NODE)) {
/* For nodes marked for ADISC, Handle unreg in ADISC cmpl
* if linkup. In linkdown do unreg_node
*/
if (!(ndlp->nlp_flag & NLP_NPR_ADISC) ||
!lpfc_is_link_up(vport->phba))
lpfc_nlp_unreg_node(vport, ndlp);
}
if (new_state == NLP_STE_MAPPED_NODE ||
new_state == NLP_STE_UNMAPPED_NODE)
lpfc_nlp_reg_node(vport, ndlp);
/*
* If the node just added to Mapped list was an FCP target,
* but the remote port registration failed or assigned a target
* id outside the presentable range - move the node to the
* Unmapped List.
*/
if ((new_state == NLP_STE_MAPPED_NODE) &&
(ndlp->nlp_type & NLP_FCP_TARGET) &&
(!ndlp->rport ||
ndlp->rport->scsi_target_id == -1 ||
ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
spin_unlock_irq(&ndlp->lock);
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
}
}
static char *
lpfc_nlp_state_name(char *buffer, size_t size, int state)
{
static char *states[] = {
[NLP_STE_UNUSED_NODE] = "UNUSED",
[NLP_STE_PLOGI_ISSUE] = "PLOGI",
[NLP_STE_ADISC_ISSUE] = "ADISC",
[NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
[NLP_STE_PRLI_ISSUE] = "PRLI",
[NLP_STE_LOGO_ISSUE] = "LOGO",
[NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
[NLP_STE_MAPPED_NODE] = "MAPPED",
[NLP_STE_NPR_NODE] = "NPR",
};
if (state < NLP_STE_MAX_STATE && states[state])
strscpy(buffer, states[state], size);
else
snprintf(buffer, size, "unknown (%d)", state);
return buffer;
}
void
lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
int state)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
int old_state = ndlp->nlp_state;
int node_dropped = ndlp->nlp_flag & NLP_DROPPED;
char name1[16], name2[16];
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0904 NPort state transition x%06x, %s -> %s\n",
ndlp->nlp_DID,
lpfc_nlp_state_name(name1, sizeof(name1), old_state),
lpfc_nlp_state_name(name2, sizeof(name2), state));
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
"node statechg did:x%x old:%d ste:%d",
ndlp->nlp_DID, old_state, state);
if (node_dropped && old_state == NLP_STE_UNUSED_NODE &&
state != NLP_STE_UNUSED_NODE) {
ndlp->nlp_flag &= ~NLP_DROPPED;
lpfc_nlp_get(ndlp);
}
if (old_state == NLP_STE_NPR_NODE &&
state != NLP_STE_NPR_NODE)
lpfc_cancel_retry_delay_tmo(vport, ndlp);
if (old_state == NLP_STE_UNMAPPED_NODE) {
ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
ndlp->nlp_type &= ~NLP_FC_NODE;
}
if (list_empty(&ndlp->nlp_listp)) {
spin_lock_irq(shost->host_lock);
list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
spin_unlock_irq(shost->host_lock);
} else if (old_state)
lpfc_nlp_counters(vport, old_state, -1);
ndlp->nlp_state = state;
lpfc_nlp_counters(vport, state, 1);
lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
}
void
lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (list_empty(&ndlp->nlp_listp)) {
spin_lock_irq(shost->host_lock);
list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
spin_unlock_irq(shost->host_lock);
}
}
void
lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
lpfc_cancel_retry_delay_tmo(vport, ndlp);
if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
spin_lock_irq(shost->host_lock);
list_del_init(&ndlp->nlp_listp);
spin_unlock_irq(shost->host_lock);
lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
NLP_STE_UNUSED_NODE);
}
/**
* lpfc_initialize_node - Initialize all fields of node object
* @vport: Pointer to Virtual Port object.
* @ndlp: Pointer to FC node object.
* @did: FC_ID of the node.
*
* This function is always called when node object need to be initialized.
* It initializes all the fields of the node object. Although the reference
* to phba from @ndlp can be obtained indirectly through it's reference to
* @vport, a direct reference to phba is taken here by @ndlp. This is due
* to the life-span of the @ndlp might go beyond the existence of @vport as
* the final release of ndlp is determined by its reference count. And, the
* operation on @ndlp needs the reference to phba.
**/
static inline void
lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint32_t did)
{
INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);
INIT_LIST_HEAD(&ndlp->recovery_evt.evt_listp);
ndlp->nlp_DID = did;
ndlp->vport = vport;
ndlp->phba = vport->phba;
ndlp->nlp_sid = NLP_NO_SID;
ndlp->nlp_fc4_type = NLP_FC4_NONE;
kref_init(&ndlp->kref);
atomic_set(&ndlp->cmd_pending, 0);
ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
}
void
lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
/*
* Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
* be used when lpfc wants to remove the "last" lpfc_nlp_put() to
* release the ndlp from the vport when conditions are correct.
*/
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
return;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
if (vport->phba->sli_rev == LPFC_SLI_REV4) {
lpfc_cleanup_vports_rrqs(vport, ndlp);
lpfc_unreg_rpi(vport, ndlp);
}
/* NLP_DROPPED means another thread already removed the initial
* reference from lpfc_nlp_init. If set, don't drop it again and
* introduce an imbalance.
*/
spin_lock_irq(&ndlp->lock);
if (!(ndlp->nlp_flag & NLP_DROPPED)) {
ndlp->nlp_flag |= NLP_DROPPED;
spin_unlock_irq(&ndlp->lock);
lpfc_nlp_put(ndlp);
return;
}
spin_unlock_irq(&ndlp->lock);
}
/*
* Start / ReStart rescue timer for Discovery / RSCN handling
*/
void
lpfc_set_disctmo(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
uint32_t tmo;
if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
/* For FAN, timeout should be greater than edtov */
tmo = (((phba->fc_edtov + 999) / 1000) + 1);
} else {
/* Normal discovery timeout should be > than ELS/CT timeout
* FC spec states we need 3 * ratov for CT requests
*/
tmo = ((phba->fc_ratov * 3) + 3);
}
if (!timer_pending(&vport->fc_disctmo)) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"set disc timer: tmo:x%x state:x%x flg:x%x",
tmo, vport->port_state, vport->fc_flag);
}
mod_timer(&vport->fc_disctmo, jiffies + msecs_to_jiffies(1000 * tmo));
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_DISC_TMO;
spin_unlock_irq(shost->host_lock);
/* Start Discovery Timer state <hba_state> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0247 Start Discovery Timer state x%x "
"Data: x%x x%lx x%x x%x\n",
vport->port_state, tmo,
(unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
vport->fc_adisc_cnt);
return;
}
/*
* Cancel rescue timer for Discovery / RSCN handling
*/
int
lpfc_can_disctmo(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
unsigned long iflags;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"can disc timer: state:x%x rtry:x%x flg:x%x",
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
/* Turn off discovery timer if its running */
if (vport->fc_flag & FC_DISC_TMO ||
timer_pending(&vport->fc_disctmo)) {
spin_lock_irqsave(shost->host_lock, iflags);
vport->fc_flag &= ~FC_DISC_TMO;
spin_unlock_irqrestore(shost->host_lock, iflags);
del_timer_sync(&vport->fc_disctmo);
spin_lock_irqsave(&vport->work_port_lock, iflags);
vport->work_port_events &= ~WORKER_DISC_TMO;
spin_unlock_irqrestore(&vport->work_port_lock, iflags);
}
/* Cancel Discovery Timer state <hba_state> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0248 Cancel Discovery Timer state x%x "
"Data: x%x x%x x%x\n",
vport->port_state, vport->fc_flag,
vport->fc_plogi_cnt, vport->fc_adisc_cnt);
return 0;
}
/*
* Check specified ring for outstanding IOCB on the SLI queue
* Return true if iocb matches the specified nport
*/
int
lpfc_check_sli_ndlp(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring,
struct lpfc_iocbq *iocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_vport *vport = ndlp->vport;
u8 ulp_command;
u16 ulp_context;
u32 remote_id;
if (iocb->vport != vport)
return 0;
ulp_command = get_job_cmnd(phba, iocb);
ulp_context = get_job_ulpcontext(phba, iocb);
remote_id = get_job_els_rsp64_did(phba, iocb);
if (pring->ringno == LPFC_ELS_RING) {
switch (ulp_command) {
case CMD_GEN_REQUEST64_CR:
if (iocb->ndlp == ndlp)
return 1;
fallthrough;
case CMD_ELS_REQUEST64_CR:
if (remote_id == ndlp->nlp_DID)
return 1;
fallthrough;
case CMD_XMIT_ELS_RSP64_CX:
if (iocb->ndlp == ndlp)
return 1;
}
} else if (pring->ringno == LPFC_FCP_RING) {
/* Skip match check if waiting to relogin to FCP target */
if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
(ndlp->nlp_flag & NLP_DELAY_TMO)) {
return 0;
}
if (ulp_context == ndlp->nlp_rpi)
return 1;
}
return 0;
}
static void
__lpfc_dequeue_nport_iocbs(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp, struct lpfc_sli_ring *pring,
struct list_head *dequeue_list)
{
struct lpfc_iocbq *iocb, *next_iocb;
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
/* Check to see if iocb matches the nport */
if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp))
/* match, dequeue */
list_move_tail(&iocb->list, dequeue_list);
}
}
static void
lpfc_sli3_dequeue_nport_iocbs(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
{
struct lpfc_sli *psli = &phba->sli;
uint32_t i;
spin_lock_irq(&phba->hbalock);
for (i = 0; i < psli->num_rings; i++)
__lpfc_dequeue_nport_iocbs(phba, ndlp, &psli->sli3_ring[i],
dequeue_list);
spin_unlock_irq(&phba->hbalock);
}
static void
lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba,
struct lpfc_nodelist *ndlp, struct list_head *dequeue_list)
{
struct lpfc_sli_ring *pring;
struct lpfc_queue *qp = NULL;
spin_lock_irq(&phba->hbalock);
list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
pring = qp->pring;
if (!pring)
continue;
spin_lock(&pring->ring_lock);
__lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list);
spin_unlock(&pring->ring_lock);
}
spin_unlock_irq(&phba->hbalock);
}
/*
* Free resources / clean up outstanding I/Os
* associated with nlp_rpi in the LPFC_NODELIST entry.
*/
static int
lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
LIST_HEAD(completions);
lpfc_fabric_abort_nport(ndlp);
/*
* Everything that matches on txcmplq will be returned
* by firmware with a no rpi error.
*/
if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
if (phba->sli_rev != LPFC_SLI_REV4)
lpfc_sli3_dequeue_nport_iocbs(phba, ndlp, &completions);
else
lpfc_sli4_dequeue_nport_iocbs(phba, ndlp, &completions);
}
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
return 0;
}
/**
* lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
* @phba: Pointer to HBA context object.
* @pmb: Pointer to mailbox object.
*
* This function will issue an ELS LOGO command after completing
* the UNREG_RPI.
**/
static void
lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct lpfc_nodelist *ndlp;
ndlp = (struct lpfc_nodelist *)(pmb->ctx_ndlp);
if (!ndlp)
return;
lpfc_issue_els_logo(vport, ndlp, 0);
/* Check to see if there are any deferred events to process */
if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
(ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"1434 UNREG cmpl deferred logo x%x "
"on NPort x%x Data: x%x x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_defer_did, ndlp);
ndlp->nlp_flag &= ~NLP_UNREG_INP;
ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
} else {
/* NLP_RELEASE_RPI is only set for SLI4 ports. */
if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
spin_unlock_irq(&ndlp->lock);
}
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_UNREG_INP;
spin_unlock_irq(&ndlp->lock);
}
/* The node has an outstanding reference for the unreg. Now
* that the LOGO action and cleanup are finished, release
* resources.
*/
lpfc_nlp_put(ndlp);
mempool_free(pmb, phba->mbox_mem_pool);
}
/*
* Sets the mailbox completion handler to be used for the
* unreg_rpi command. The handler varies based on the state of
* the port and what will be happening to the rpi next.
*/
static void
lpfc_set_unreg_login_mbx_cmpl(struct lpfc_hba *phba, struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox)
{
unsigned long iflags;
/* Driver always gets a reference on the mailbox job
* in support of async jobs.
*/
mbox->ctx_ndlp = lpfc_nlp_get(ndlp);
if (!mbox->ctx_ndlp)
return;
if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
} else if (phba->sli_rev == LPFC_SLI_REV4 &&
(!(vport->load_flag & FC_UNLOADING)) &&
(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
LPFC_SLI_INTF_IF_TYPE_2) &&
(kref_read(&ndlp->kref) > 0)) {
mbox->mbox_cmpl = lpfc_sli4_unreg_rpi_cmpl_clr;
} else {
if (vport->load_flag & FC_UNLOADING) {
if (phba->sli_rev == LPFC_SLI_REV4) {
spin_lock_irqsave(&ndlp->lock, iflags);
ndlp->nlp_flag |= NLP_RELEASE_RPI;
spin_unlock_irqrestore(&ndlp->lock, iflags);
}
}
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
}
}
/*
* Free rpi associated with LPFC_NODELIST entry.
* This routine is called from lpfc_freenode(), when we are removing
* a LPFC_NODELIST entry. It is also called if the driver initiates a
* LOGO that completes successfully, and we are waiting to PLOGI back
* to the remote NPort. In addition, it is called after we receive
* and unsolicated ELS cmd, send back a rsp, the rsp completes and
* we are waiting to PLOGI back to the remote NPort.
*/
int
lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc, acc_plogi = 1;
uint16_t rpi;
if (ndlp->nlp_flag & NLP_RPI_REGISTERED ||
ndlp->nlp_flag & NLP_REG_LOGIN_SEND) {
if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND)
lpfc_printf_vlog(vport, KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"3366 RPI x%x needs to be "
"unregistered nlp_flag x%x "
"did x%x\n",
ndlp->nlp_rpi, ndlp->nlp_flag,
ndlp->nlp_DID);
/* If there is already an UNREG in progress for this ndlp,
* no need to queue up another one.
*/
if (ndlp->nlp_flag & NLP_UNREG_INP) {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"1436 unreg_rpi SKIP UNREG x%x on "
"NPort x%x deferred x%x flg x%x "
"Data: x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_defer_did,
ndlp->nlp_flag, ndlp);
goto out;
}
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
/* SLI4 ports require the physical rpi value. */
rpi = ndlp->nlp_rpi;
if (phba->sli_rev == LPFC_SLI_REV4)
rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
mbox->vport = vport;
lpfc_set_unreg_login_mbx_cmpl(phba, vport, ndlp, mbox);
if (!mbox->ctx_ndlp) {
mempool_free(mbox, phba->mbox_mem_pool);
return 1;
}
if (mbox->mbox_cmpl == lpfc_sli4_unreg_rpi_cmpl_clr)
/*
* accept PLOGIs after unreg_rpi_cmpl
*/
acc_plogi = 0;
if (((ndlp->nlp_DID & Fabric_DID_MASK) !=
Fabric_DID_MASK) &&
(!(vport->fc_flag & FC_OFFLINE_MODE)))
ndlp->nlp_flag |= NLP_UNREG_INP;
lpfc_printf_vlog(vport, KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"1433 unreg_rpi UNREG x%x on "
"NPort x%x deferred flg x%x "
"Data:x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp);
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
ndlp->nlp_flag &= ~NLP_UNREG_INP;
mempool_free(mbox, phba->mbox_mem_pool);
acc_plogi = 1;
lpfc_nlp_put(ndlp);
}
} else {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"1444 Failed to allocate mempool "
"unreg_rpi UNREG x%x, "
"DID x%x, flag x%x, "
"ndlp x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp);
/* Because mempool_alloc failed, we
* will issue a LOGO here and keep the rpi alive if
* not unloading.
*/
if (!(vport->load_flag & FC_UNLOADING)) {
ndlp->nlp_flag &= ~NLP_UNREG_INP;
lpfc_issue_els_logo(vport, ndlp, 0);
ndlp->nlp_prev_state = ndlp->nlp_state;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_NPR_NODE);
}
return 1;
}
lpfc_no_rpi(phba, ndlp);
out:
if (phba->sli_rev != LPFC_SLI_REV4)
ndlp->nlp_rpi = 0;
ndlp->nlp_flag &= ~NLP_RPI_REGISTERED;
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
if (acc_plogi)
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
return 1;
}
ndlp->nlp_flag &= ~NLP_LOGO_ACC;
return 0;
}
/**
* lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unregister all the currently registered RPIs
* to the HBA.
**/
void
lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
int i;
vports = lpfc_create_vport_work_array(phba);
if (!vports) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2884 Vport array allocation failed \n");
return;
}
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
/* The mempool_alloc might sleep */
spin_unlock_irq(shost->host_lock);
lpfc_unreg_rpi(vports[i], ndlp);
spin_lock_irq(shost->host_lock);
}
}
spin_unlock_irq(shost->host_lock);
}
lpfc_destroy_vport_work_array(phba, vports);
}
void
lpfc_unreg_all_rpis(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
if (phba->sli_rev == LPFC_SLI_REV4) {
lpfc_sli4_unreg_all_rpis(vport);
return;
}
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
lpfc_unreg_login(phba, vport->vpi, LPFC_UNREG_ALL_RPIS_VPORT,
mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->ctx_ndlp = NULL;
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
if (rc != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1836 Could not issue "
"unreg_login(all_rpis) status %d\n",
rc);
}
}
void
lpfc_unreg_default_rpis(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
/* Unreg DID is an SLI3 operation. */
if (phba->sli_rev > LPFC_SLI_REV3)
return;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mbox->ctx_ndlp = NULL;
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
if (rc != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"1815 Could not issue "
"unreg_did (default rpis) status %d\n",
rc);
}
}
/*
* Free resources associated with LPFC_NODELIST entry
* so it can be freed.
*/
static int
lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mb, *nextmb;
/* Cleanup node for NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0900 Cleanup node for NPort x%x "
"Data: x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, ndlp->nlp_rpi);
lpfc_dequeue_node(vport, ndlp);
/* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
if ((mb = phba->sli.mbox_active)) {
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
!(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
(ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
mb->ctx_ndlp = NULL;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
}
}
spin_lock_irq(&phba->hbalock);
/* Cleanup REG_LOGIN completions which are not yet processed */
list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
(mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
(ndlp != (struct lpfc_nodelist *)mb->ctx_ndlp))
continue;
mb->ctx_ndlp = NULL;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
}
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
!(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
(ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) {
list_del(&mb->list);
lpfc_mbox_rsrc_cleanup(phba, mb, MBOX_THD_LOCKED);
/* Don't invoke lpfc_nlp_put. The driver is in
* lpfc_nlp_release context.
*/
}
}
spin_unlock_irq(&phba->hbalock);
lpfc_els_abort(phba, ndlp);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_DELAY_TMO;
spin_unlock_irq(&ndlp->lock);
ndlp->nlp_last_elscmd = 0;
del_timer_sync(&ndlp->nlp_delayfunc);
list_del_init(&ndlp->els_retry_evt.evt_listp);
list_del_init(&ndlp->dev_loss_evt.evt_listp);
list_del_init(&ndlp->recovery_evt.evt_listp);
lpfc_cleanup_vports_rrqs(vport, ndlp);
if (phba->sli_rev == LPFC_SLI_REV4)
ndlp->nlp_flag |= NLP_RELEASE_RPI;
return 0;
}
static int
lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint32_t did)
{
D_ID mydid, ndlpdid, matchdid;
if (did == Bcast_DID)
return 0;
/* First check for Direct match */
if (ndlp->nlp_DID == did)
return 1;
/* Next check for area/domain identically equals 0 match */
mydid.un.word = vport->fc_myDID;
if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
return 0;
}
matchdid.un.word = did;
ndlpdid.un.word = ndlp->nlp_DID;
if (matchdid.un.b.id == ndlpdid.un.b.id) {
if ((mydid.un.b.domain == matchdid.un.b.domain) &&
(mydid.un.b.area == matchdid.un.b.area)) {
/* This code is supposed to match the ID
* for a private loop device that is
* connect to fl_port. But we need to
* check that the port did not just go
* from pt2pt to fabric or we could end
* up matching ndlp->nlp_DID 000001 to
* fabric DID 0x20101
*/
if ((ndlpdid.un.b.domain == 0) &&
(ndlpdid.un.b.area == 0)) {
if (ndlpdid.un.b.id &&
vport->phba->fc_topology ==
LPFC_TOPOLOGY_LOOP)
return 1;
}
return 0;
}
matchdid.un.word = ndlp->nlp_DID;
if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
(mydid.un.b.area == ndlpdid.un.b.area)) {
if ((matchdid.un.b.domain == 0) &&
(matchdid.un.b.area == 0)) {
if (matchdid.un.b.id)
return 1;
}
}
}
return 0;
}
/* Search for a nodelist entry */
static struct lpfc_nodelist *
__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
{
struct lpfc_nodelist *ndlp;
uint32_t data1;
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (lpfc_matchdid(vport, ndlp, did)) {
data1 = (((uint32_t)ndlp->nlp_state << 24) |
((uint32_t)ndlp->nlp_xri << 16) |
((uint32_t)ndlp->nlp_type << 8)
);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0929 FIND node DID "
"Data: x%px x%x x%x x%x x%x x%px\n",
ndlp, ndlp->nlp_DID,
ndlp->nlp_flag, data1, ndlp->nlp_rpi,
ndlp->active_rrqs_xri_bitmap);
return ndlp;
}
}
/* FIND node did <did> NOT FOUND */
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0932 FIND node did x%x NOT FOUND.\n", did);
return NULL;
}
struct lpfc_nodelist *
lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
unsigned long iflags;
spin_lock_irqsave(shost->host_lock, iflags);
ndlp = __lpfc_findnode_did(vport, did);
spin_unlock_irqrestore(shost->host_lock, iflags);
return ndlp;
}
struct lpfc_nodelist *
lpfc_findnode_mapped(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
uint32_t data1;
unsigned long iflags;
spin_lock_irqsave(shost->host_lock, iflags);
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_state == NLP_STE_UNMAPPED_NODE ||
ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
data1 = (((uint32_t)ndlp->nlp_state << 24) |
((uint32_t)ndlp->nlp_xri << 16) |
((uint32_t)ndlp->nlp_type << 8) |
((uint32_t)ndlp->nlp_rpi & 0xff));
spin_unlock_irqrestore(shost->host_lock, iflags);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"2025 FIND node DID "
"Data: x%px x%x x%x x%x x%px\n",
ndlp, ndlp->nlp_DID,
ndlp->nlp_flag, data1,
ndlp->active_rrqs_xri_bitmap);
return ndlp;
}
}
spin_unlock_irqrestore(shost->host_lock, iflags);
/* FIND node did <did> NOT FOUND */
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"2026 FIND mapped did NOT FOUND.\n");
return NULL;
}
struct lpfc_nodelist *
lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
{
struct lpfc_nodelist *ndlp;
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
if (vport->phba->nvmet_support)
return NULL;
if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
lpfc_rscn_payload_check(vport, did) == 0)
return NULL;
ndlp = lpfc_nlp_init(vport, did);
if (!ndlp)
return NULL;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6453 Setup New Node 2B_DISC x%x "
"Data:x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, vport->fc_flag);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
return ndlp;
}
/* The NVME Target does not want to actively manage an rport.
* The goal is to allow the target to reset its state and clear
* pending IO in preparation for the initiator to recover.
*/
if ((vport->fc_flag & FC_RSCN_MODE) &&
!(vport->fc_flag & FC_NDISC_ACTIVE)) {
if (lpfc_rscn_payload_check(vport, did)) {
/* Since this node is marked for discovery,
* delay timeout is not needed.
*/
lpfc_cancel_retry_delay_tmo(vport, ndlp);
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6455 Setup RSCN Node 2B_DISC x%x "
"Data:x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, vport->fc_flag);
/* NVME Target mode waits until rport is known to be
* impacted by the RSCN before it transitions. No
* active management - just go to NPR provided the
* node had a valid login.
*/
if (vport->phba->nvmet_support)
return ndlp;
/* If we've already received a PLOGI from this NPort
* we don't need to try to discover it again.
*/
if (ndlp->nlp_flag & NLP_RCV_PLOGI &&
!(ndlp->nlp_type &
(NLP_FCP_TARGET | NLP_NVME_TARGET)))
return NULL;
if (ndlp->nlp_state > NLP_STE_UNUSED_NODE &&
ndlp->nlp_state < NLP_STE_PRLI_ISSUE) {
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RECOVERY);
}
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6456 Skip Setup RSCN Node x%x "
"Data:x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, vport->fc_flag);
ndlp = NULL;
}
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6457 Setup Active Node 2B_DISC x%x "
"Data:x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, vport->fc_flag);
/* If the initiator received a PLOGI from this NPort or if the
* initiator is already in the process of discovery on it,
* there's no need to try to discover it again.
*/
if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
(!vport->phba->nvmet_support &&
ndlp->nlp_flag & NLP_RCV_PLOGI))
return NULL;
if (vport->phba->nvmet_support)
return ndlp;
/* Moving to NPR state clears unsolicited flags and
* allows for rediscovery
*/
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(&ndlp->lock);
}
return ndlp;
}
/* Build a list of nodes to discover based on the loopmap */
void
lpfc_disc_list_loopmap(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
int j;
uint32_t alpa, index;
if (!lpfc_is_link_up(phba))
return;
if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
return;
/* Check for loop map present or not */
if (phba->alpa_map[0]) {
for (j = 1; j <= phba->alpa_map[0]; j++) {
alpa = phba->alpa_map[j];
if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
continue;
lpfc_setup_disc_node(vport, alpa);
}
} else {
/* No alpamap, so try all alpa's */
for (j = 0; j < FC_MAXLOOP; j++) {
/* If cfg_scan_down is set, start from highest
* ALPA (0xef) to lowest (0x1).
*/
if (vport->cfg_scan_down)
index = j;
else
index = FC_MAXLOOP - j - 1;
alpa = lpfcAlpaArray[index];
if ((vport->fc_myDID & 0xff) == alpa)
continue;
lpfc_setup_disc_node(vport, alpa);
}
}
return;
}
/* SLI3 only */
void
lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *mbox;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *extra_ring = &psli->sli3_ring[LPFC_EXTRA_RING];
struct lpfc_sli_ring *fcp_ring = &psli->sli3_ring[LPFC_FCP_RING];
int rc;
/*
* if it's not a physical port or if we already send
* clear_la then don't send it.
*/
if ((phba->link_state >= LPFC_CLEAR_LA) ||
(vport->port_type != LPFC_PHYSICAL_PORT) ||
(phba->sli_rev == LPFC_SLI_REV4))
return;
/* Link up discovery */
if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
phba->link_state = LPFC_CLEAR_LA;
lpfc_clear_la(phba, mbox);
mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
lpfc_disc_flush_list(vport);
extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
phba->link_state = LPFC_HBA_ERROR;
}
}
}
/* Reg_vpi to tell firmware to resume normal operations */
void
lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *regvpimbox;
regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (regvpimbox) {
lpfc_reg_vpi(vport, regvpimbox);
regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
regvpimbox->vport = vport;
if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
== MBX_NOT_FINISHED) {
mempool_free(regvpimbox, phba->mbox_mem_pool);
}
}
}
/* Start Link up / RSCN discovery on NPR nodes */
void
lpfc_disc_start(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
uint32_t num_sent;
uint32_t clear_la_pending;
if (!lpfc_is_link_up(phba)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
"3315 Link is not up %x\n",
phba->link_state);
return;
}
if (phba->link_state == LPFC_CLEAR_LA)
clear_la_pending = 1;
else
clear_la_pending = 0;
if (vport->port_state < LPFC_VPORT_READY)
vport->port_state = LPFC_DISC_AUTH;
lpfc_set_disctmo(vport);
vport->fc_prevDID = vport->fc_myDID;
vport->num_disc_nodes = 0;
/* Start Discovery state <hba_state> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0202 Start Discovery port state x%x "
"flg x%x Data: x%x x%x x%x\n",
vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
vport->fc_adisc_cnt, vport->fc_npr_cnt);
/* First do ADISCs - if any */
num_sent = lpfc_els_disc_adisc(vport);
if (num_sent)
return;
/* Register the VPI for SLI3, NPIV only. */
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
!(vport->fc_flag & FC_PT2PT) &&
!(vport->fc_flag & FC_RSCN_MODE) &&
(phba->sli_rev < LPFC_SLI_REV4)) {
lpfc_issue_clear_la(phba, vport);
lpfc_issue_reg_vpi(phba, vport);
return;
}
/*
* For SLI2, we need to set port_state to READY and continue
* discovery.
*/
if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
/* If we get here, there is nothing to ADISC */
lpfc_issue_clear_la(phba, vport);
if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
vport->num_disc_nodes = 0;
/* go thru NPR nodes and issue ELS PLOGIs */
if (vport->fc_npr_cnt)
lpfc_els_disc_plogi(vport);
if (!vport->num_disc_nodes) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
}
}
vport->port_state = LPFC_VPORT_READY;
} else {
/* Next do PLOGIs - if any */
num_sent = lpfc_els_disc_plogi(vport);
if (num_sent)
return;
if (vport->fc_flag & FC_RSCN_MODE) {
/* Check to see if more RSCNs came in while we
* were processing this one.
*/
if ((vport->fc_rscn_id_cnt == 0) &&
(!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
} else
lpfc_els_handle_rscn(vport);
}
}
return;
}
/*
* Ignore completion for all IOCBs on tx and txcmpl queue for ELS
* ring the match the sppecified nodelist.
*/
static void
lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
LIST_HEAD(completions);
struct lpfc_iocbq *iocb, *next_iocb;
struct lpfc_sli_ring *pring;
u32 ulp_command;
pring = lpfc_phba_elsring(phba);
if (unlikely(!pring))
return;
/* Error matching iocb on txq or txcmplq
* First check the txq.
*/
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
if (iocb->ndlp != ndlp)
continue;
ulp_command = get_job_cmnd(phba, iocb);
if (ulp_command == CMD_ELS_REQUEST64_CR ||
ulp_command == CMD_XMIT_ELS_RSP64_CX) {
list_move_tail(&iocb->list, &completions);
}
}
/* Next check the txcmplq */
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
if (iocb->ndlp != ndlp)
continue;
ulp_command = get_job_cmnd(phba, iocb);
if (ulp_command == CMD_ELS_REQUEST64_CR ||
ulp_command == CMD_XMIT_ELS_RSP64_CX) {
lpfc_sli_issue_abort_iotag(phba, pring, iocb, NULL);
}
}
spin_unlock_irq(&phba->hbalock);
/* Make sure HBA is alive */
lpfc_issue_hb_tmo(phba);
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
}
static void
lpfc_disc_flush_list(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp, *next_ndlp;
struct lpfc_hba *phba = vport->phba;
if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
nlp_listp) {
if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
lpfc_free_tx(phba, ndlp);
}
}
}
}
/*
* lpfc_notify_xport_npr - notifies xport of node disappearance
* @vport: Pointer to Virtual Port object.
*
* Transitions all ndlps to NPR state. When lpfc_nlp_set_state
* calls lpfc_nlp_state_cleanup, the ndlp->rport is unregistered
* and transport notified that the node is gone.
* Return Code:
* none
*/
static void
lpfc_notify_xport_npr(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp, *next_ndlp;
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
nlp_listp) {
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
}
}
void
lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
{
lpfc_els_flush_rscn(vport);
lpfc_els_flush_cmd(vport);
lpfc_disc_flush_list(vport);
if (pci_channel_offline(vport->phba->pcidev))
lpfc_notify_xport_npr(vport);
}
/*****************************************************************************/
/*
* NAME: lpfc_disc_timeout
*
* FUNCTION: Fibre Channel driver discovery timeout routine.
*
* EXECUTION ENVIRONMENT: interrupt only
*
* CALLED FROM:
* Timer function
*
* RETURNS:
* none
*/
/*****************************************************************************/
void
lpfc_disc_timeout(struct timer_list *t)
{
struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);
struct lpfc_hba *phba = vport->phba;
uint32_t tmo_posted;
unsigned long flags = 0;
if (unlikely(!phba))
return;
spin_lock_irqsave(&vport->work_port_lock, flags);
tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
if (!tmo_posted)
vport->work_port_events |= WORKER_DISC_TMO;
spin_unlock_irqrestore(&vport->work_port_lock, flags);
if (!tmo_posted)
lpfc_worker_wake_up(phba);
return;
}
static void
lpfc_disc_timeout_handler(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_nodelist *ndlp, *next_ndlp;
LPFC_MBOXQ_t *initlinkmbox;
int rc, clrlaerr = 0;
if (!(vport->fc_flag & FC_DISC_TMO))
return;
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_DISC_TMO;
spin_unlock_irq(shost->host_lock);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"disc timeout: state:x%x rtry:x%x flg:x%x",
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
switch (vport->port_state) {
case LPFC_LOCAL_CFG_LINK:
/*
* port_state is identically LPFC_LOCAL_CFG_LINK while
* waiting for FAN timeout
*/
lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
"0221 FAN timeout\n");
/* Start discovery by sending FLOGI, clean up old rpis */
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
nlp_listp) {
if (ndlp->nlp_state != NLP_STE_NPR_NODE)
continue;
if (ndlp->nlp_type & NLP_FABRIC) {
/* Clean up the ndlp on Fabric connections */
lpfc_drop_node(vport, ndlp);
} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
/* Fail outstanding IO now since device
* is marked for PLOGI.
*/
lpfc_unreg_rpi(vport, ndlp);
}
}
if (vport->port_state != LPFC_FLOGI) {
if (phba->sli_rev <= LPFC_SLI_REV3)
lpfc_initial_flogi(vport);
else
lpfc_issue_init_vfi(vport);
return;
}
break;
case LPFC_FDISC:
case LPFC_FLOGI:
/* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
/* Initial FLOGI timeout */
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0222 Initial %s timeout\n",
vport->vpi ? "FDISC" : "FLOGI");
/* Assume no Fabric and go on with discovery.
* Check for outstanding ELS FLOGI to abort.
*/
/* FLOGI failed, so just use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
break;
case LPFC_FABRIC_CFG_LINK:
/* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
NameServer login */
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0223 Timeout while waiting for "
"NameServer login\n");
/* Next look for NameServer ndlp */
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (ndlp)
lpfc_els_abort(phba, ndlp);
/* ReStart discovery */
goto restart_disc;
case LPFC_NS_QRY:
/* Check for wait for NameServer Rsp timeout */
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0224 NameServer Query timeout "
"Data: x%x x%x\n",
vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
/* Try it one more time */
vport->fc_ns_retry++;
vport->gidft_inp = 0;
rc = lpfc_issue_gidft(vport);
if (rc == 0)
break;
}
vport->fc_ns_retry = 0;
restart_disc:
/*
* Discovery is over.
* set port_state to PORT_READY if SLI2.
* cmpl_reg_vpi will set port_state to READY for SLI3.
*/
if (phba->sli_rev < LPFC_SLI_REV4) {
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
lpfc_issue_reg_vpi(phba, vport);
else {
lpfc_issue_clear_la(phba, vport);
vport->port_state = LPFC_VPORT_READY;
}
}
/* Setup and issue mailbox INITIALIZE LINK command */
initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!initlinkmbox) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0206 Device Discovery "
"completion error\n");
phba->link_state = LPFC_HBA_ERROR;
break;
}
lpfc_linkdown(phba);
lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
phba->cfg_link_speed);
initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
initlinkmbox->vport = vport;
initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
lpfc_set_loopback_flag(phba);
if (rc == MBX_NOT_FINISHED)
mempool_free(initlinkmbox, phba->mbox_mem_pool);
break;
case LPFC_DISC_AUTH:
/* Node Authentication timeout */
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0227 Node Authentication timeout\n");
lpfc_disc_flush_list(vport);
/*
* set port_state to PORT_READY if SLI2.
* cmpl_reg_vpi will set port_state to READY for SLI3.
*/
if (phba->sli_rev < LPFC_SLI_REV4) {
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
lpfc_issue_reg_vpi(phba, vport);
else { /* NPIV Not enabled */
lpfc_issue_clear_la(phba, vport);
vport->port_state = LPFC_VPORT_READY;
}
}
break;
case LPFC_VPORT_READY:
if (vport->fc_flag & FC_RSCN_MODE) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0231 RSCN timeout Data: x%x "
"x%x x%x x%x\n",
vport->fc_ns_retry, LPFC_MAX_NS_RETRY,
vport->port_state, vport->gidft_inp);
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_cmd(vport);
lpfc_els_flush_rscn(vport);
lpfc_disc_flush_list(vport);
}
break;
default:
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0273 Unexpected discovery timeout, "
"vport State x%x\n", vport->port_state);
break;
}
switch (phba->link_state) {
case LPFC_CLEAR_LA:
/* CLEAR LA timeout */
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0228 CLEAR LA timeout\n");
clrlaerr = 1;
break;
case LPFC_LINK_UP:
lpfc_issue_clear_la(phba, vport);
fallthrough;
case LPFC_LINK_UNKNOWN:
case LPFC_WARM_START:
case LPFC_INIT_START:
case LPFC_INIT_MBX_CMDS:
case LPFC_LINK_DOWN:
case LPFC_HBA_ERROR:
lpfc_printf_vlog(vport, KERN_ERR,
LOG_TRACE_EVENT,
"0230 Unexpected timeout, hba link "
"state x%x\n", phba->link_state);
clrlaerr = 1;
break;
case LPFC_HBA_READY:
break;
}
if (clrlaerr) {
lpfc_disc_flush_list(vport);
if (phba->sli_rev != LPFC_SLI_REV4) {
psli->sli3_ring[(LPFC_EXTRA_RING)].flag &=
~LPFC_STOP_IOCB_EVENT;
psli->sli3_ring[LPFC_FCP_RING].flag &=
~LPFC_STOP_IOCB_EVENT;
}
vport->port_state = LPFC_VPORT_READY;
}
return;
}
/*
* This routine handles processing a NameServer REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
struct lpfc_vport *vport = pmb->vport;
pmb->ctx_ndlp = NULL;
if (phba->sli_rev < LPFC_SLI_REV4)
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
"0004 rpi:%x DID:%x flg:%x %d x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
kref_read(&ndlp->kref),
ndlp);
/*
* Start issuing Fabric-Device Management Interface (FDMI) command to
* 0xfffffa (FDMI well known port).
* DHBA -> DPRT -> RHBA -> RPA (physical port)
* DPRT -> RPRT (vports)
*/
if (vport->port_type == LPFC_PHYSICAL_PORT) {
phba->link_flag &= ~LS_CT_VEN_RPA; /* For extra Vendor RPA */
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
} else {
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
}
/* decrement the node reference count held for this callback
* function.
*/
lpfc_nlp_put(ndlp);
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
return;
}
static int
lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
{
uint16_t *rpi = param;
return ndlp->nlp_rpi == *rpi;
}
static int
lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
{
return memcmp(&ndlp->nlp_portname, param,
sizeof(ndlp->nlp_portname)) == 0;
}
static struct lpfc_nodelist *
__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
{
struct lpfc_nodelist *ndlp;
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (filter(ndlp, param)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"3185 FIND node filter %ps DID "
"ndlp x%px did x%x flg x%x st x%x "
"xri x%x type x%x rpi x%x\n",
filter, ndlp, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state,
ndlp->nlp_xri, ndlp->nlp_type,
ndlp->nlp_rpi);
return ndlp;
}
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"3186 FIND node filter %ps NOT FOUND.\n", filter);
return NULL;
}
/*
* This routine looks up the ndlp lists for the given RPI. If rpi found it
* returns the node list element pointer else return NULL.
*/
struct lpfc_nodelist *
__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
{
return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
}
/*
* This routine looks up the ndlp lists for the given WWPN. If WWPN found it
* returns the node element list pointer else return NULL.
*/
struct lpfc_nodelist *
lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
spin_lock_irq(shost->host_lock);
ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
spin_unlock_irq(shost->host_lock);
return ndlp;
}
/*
* This routine looks up the ndlp lists for the given RPI. If the rpi
* is found, the routine returns the node element list pointer else
* return NULL.
*/
struct lpfc_nodelist *
lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
unsigned long flags;
spin_lock_irqsave(shost->host_lock, flags);
ndlp = __lpfc_findnode_rpi(vport, rpi);
spin_unlock_irqrestore(shost->host_lock, flags);
return ndlp;
}
/**
* lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
* @phba: pointer to lpfc hba data structure.
* @vpi: the physical host virtual N_Port identifier.
*
* This routine finds a vport on a HBA (referred by @phba) through a
* @vpi. The function walks the HBA's vport list and returns the address
* of the vport with the matching @vpi.
*
* Return code
* NULL - No vport with the matching @vpi found
* Otherwise - Address to the vport with the matching @vpi.
**/
struct lpfc_vport *
lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
{
struct lpfc_vport *vport;
unsigned long flags;
int i = 0;
/* The physical ports are always vpi 0 - translate is unnecessary. */
if (vpi > 0) {
/*
* Translate the physical vpi to the logical vpi. The
* vport stores the logical vpi.
*/
for (i = 0; i <= phba->max_vpi; i++) {
if (vpi == phba->vpi_ids[i])
break;
}
if (i > phba->max_vpi) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2936 Could not find Vport mapped "
"to vpi %d\n", vpi);
return NULL;
}
}
spin_lock_irqsave(&phba->port_list_lock, flags);
list_for_each_entry(vport, &phba->port_list, listentry) {
if (vport->vpi == i) {
spin_unlock_irqrestore(&phba->port_list_lock, flags);
return vport;
}
}
spin_unlock_irqrestore(&phba->port_list_lock, flags);
return NULL;
}
struct lpfc_nodelist *
lpfc_nlp_init(struct lpfc_vport *vport, uint32_t did)
{
struct lpfc_nodelist *ndlp;
int rpi = LPFC_RPI_ALLOC_ERROR;
if (vport->phba->sli_rev == LPFC_SLI_REV4) {
rpi = lpfc_sli4_alloc_rpi(vport->phba);
if (rpi == LPFC_RPI_ALLOC_ERROR)
return NULL;
}
ndlp = mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp) {
if (vport->phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_free_rpi(vport->phba, rpi);
return NULL;
}
memset(ndlp, 0, sizeof (struct lpfc_nodelist));
spin_lock_init(&ndlp->lock);
lpfc_initialize_node(vport, ndlp, did);
INIT_LIST_HEAD(&ndlp->nlp_listp);
if (vport->phba->sli_rev == LPFC_SLI_REV4) {
ndlp->nlp_rpi = rpi;
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE | LOG_DISCOVERY,
"0007 Init New ndlp x%px, rpi:x%x DID:%x "
"flg:x%x refcnt:%d\n",
ndlp, ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_flag, kref_read(&ndlp->kref));
ndlp->active_rrqs_xri_bitmap =
mempool_alloc(vport->phba->active_rrq_pool,
GFP_KERNEL);
if (ndlp->active_rrqs_xri_bitmap)
memset(ndlp->active_rrqs_xri_bitmap, 0,
ndlp->phba->cfg_rrq_xri_bitmap_sz);
}
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
"node init: did:x%x",
ndlp->nlp_DID, 0, 0);
return ndlp;
}
/* This routine releases all resources associated with a specifc NPort's ndlp
* and mempool_free's the nodelist.
*/
static void
lpfc_nlp_release(struct kref *kref)
{
struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
kref);
struct lpfc_vport *vport = ndlp->vport;
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
"node release: did:x%x flg:x%x type:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0279 %s: ndlp: x%px did %x refcnt:%d rpi:%x\n",
__func__, ndlp, ndlp->nlp_DID,
kref_read(&ndlp->kref), ndlp->nlp_rpi);
/* remove ndlp from action. */
lpfc_cancel_retry_delay_tmo(vport, ndlp);
lpfc_cleanup_node(vport, ndlp);
/* Not all ELS transactions have registered the RPI with the port.
* In these cases the rpi usage is temporary and the node is
* released when the WQE is completed. Catch this case to free the
* RPI to the pool. Because this node is in the release path, a lock
* is unnecessary. All references are gone and the node has been
* dequeued.
*/
if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR &&
!(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) {
lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
}
}
/* The node is not freed back to memory, it is released to a pool so
* the node fields need to be cleaned up.
*/
ndlp->vport = NULL;
ndlp->nlp_state = NLP_STE_FREED_NODE;
ndlp->nlp_flag = 0;
ndlp->fc4_xpt_flags = 0;
/* free ndlp memory for final ndlp release */
if (ndlp->phba->sli_rev == LPFC_SLI_REV4)
mempool_free(ndlp->active_rrqs_xri_bitmap,
ndlp->phba->active_rrq_pool);
mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
}
/* This routine bumps the reference count for a ndlp structure to ensure
* that one discovery thread won't free a ndlp while another discovery thread
* is using it.
*/
struct lpfc_nodelist *
lpfc_nlp_get(struct lpfc_nodelist *ndlp)
{
unsigned long flags;
if (ndlp) {
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
"node get: did:x%x flg:x%x refcnt:x%x",
ndlp->nlp_DID, ndlp->nlp_flag,
kref_read(&ndlp->kref));
/* The check of ndlp usage to prevent incrementing the
* ndlp reference count that is in the process of being
* released.
*/
spin_lock_irqsave(&ndlp->lock, flags);
if (!kref_get_unless_zero(&ndlp->kref)) {
spin_unlock_irqrestore(&ndlp->lock, flags);
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
"0276 %s: ndlp:x%px refcnt:%d\n",
__func__, (void *)ndlp, kref_read(&ndlp->kref));
return NULL;
}
spin_unlock_irqrestore(&ndlp->lock, flags);
} else {
WARN_ONCE(!ndlp, "**** %s, get ref on NULL ndlp!", __func__);
}
return ndlp;
}
/* This routine decrements the reference count for a ndlp structure. If the
* count goes to 0, this indicates the associated nodelist should be freed.
*/
int
lpfc_nlp_put(struct lpfc_nodelist *ndlp)
{
if (ndlp) {
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
"node put: did:x%x flg:x%x refcnt:x%x",
ndlp->nlp_DID, ndlp->nlp_flag,
kref_read(&ndlp->kref));
} else {
WARN_ONCE(!ndlp, "**** %s, put ref on NULL ndlp!", __func__);
}
return ndlp ? kref_put(&ndlp->kref, lpfc_nlp_release) : 0;
}
/**
* lpfc_fcf_inuse - Check if FCF can be unregistered.
* @phba: Pointer to hba context object.
*
* This function iterate through all FC nodes associated
* will all vports to check if there is any node with
* fc_rports associated with it. If there is an fc_rport
* associated with the node, then the node is either in
* discovered state or its devloss_timer is pending.
*/
static int
lpfc_fcf_inuse(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i, ret = 0;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
vports = lpfc_create_vport_work_array(phba);
/* If driver cannot allocate memory, indicate fcf is in use */
if (!vports)
return 1;
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
/*
* IF the CVL_RCVD bit is not set then we have sent the
* flogi.
* If dev_loss fires while we are waiting we do not want to
* unreg the fcf.
*/
if (!(vports[i]->fc_flag & FC_VPORT_CVL_RCVD)) {
spin_unlock_irq(shost->host_lock);
ret = 1;
goto out;
}
list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
if (ndlp->rport &&
(ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
ret = 1;
spin_unlock_irq(shost->host_lock);
goto out;
} else if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
ret = 1;
lpfc_printf_log(phba, KERN_INFO,
LOG_NODE | LOG_DISCOVERY,
"2624 RPI %x DID %x flag %x "
"still logged in\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_flag);
}
}
spin_unlock_irq(shost->host_lock);
}
out:
lpfc_destroy_vport_work_array(phba, vports);
return ret;
}
/**
* lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
* @phba: Pointer to hba context object.
* @mboxq: Pointer to mailbox object.
*
* This function frees memory associated with the mailbox command.
*/
void
lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2555 UNREG_VFI mbxStatus error x%x "
"HBA state x%x\n",
mboxq->u.mb.mbxStatus, vport->port_state);
}
spin_lock_irq(shost->host_lock);
phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
spin_unlock_irq(shost->host_lock);
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
* @phba: Pointer to hba context object.
* @mboxq: Pointer to mailbox object.
*
* This function frees memory associated with the mailbox command.
*/
static void
lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2550 UNREG_FCFI mbxStatus error x%x "
"HBA state x%x\n",
mboxq->u.mb.mbxStatus, vport->port_state);
}
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_unregister_fcf_prep - Unregister fcf record preparation
* @phba: Pointer to hba context object.
*
* This function prepare the HBA for unregistering the currently registered
* FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
* VFIs.
*/
int
lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
int i = 0, rc;
/* Unregister RPIs */
if (lpfc_fcf_inuse(phba))
lpfc_unreg_hba_rpis(phba);
/* At this point, all discovery is aborted */
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
/* Unregister VPIs */
vports = lpfc_create_vport_work_array(phba);
if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
/* Stop FLOGI/FDISC retries */
ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
if (ndlp)
lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
lpfc_cleanup_pending_mbox(vports[i]);
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_unreg_all_rpis(vports[i]);
lpfc_mbx_unreg_vpi(vports[i]);
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
spin_unlock_irq(shost->host_lock);
}
lpfc_destroy_vport_work_array(phba, vports);
if (i == 0 && (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))) {
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
if (ndlp)
lpfc_cancel_retry_delay_tmo(phba->pport, ndlp);
lpfc_cleanup_pending_mbox(phba->pport);
if (phba->sli_rev == LPFC_SLI_REV4)
lpfc_sli4_unreg_all_rpis(phba->pport);
lpfc_mbx_unreg_vpi(phba->pport);
shost = lpfc_shost_from_vport(phba->pport);
spin_lock_irq(shost->host_lock);
phba->pport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
phba->pport->vpi_state &= ~LPFC_VPI_REGISTERED;
spin_unlock_irq(shost->host_lock);
}
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_all_cmd(phba);
/* Unregister the physical port VFI */
rc = lpfc_issue_unreg_vfi(phba->pport);
return rc;
}
/**
* lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
* @phba: Pointer to hba context object.
*
* This function issues synchronous unregister FCF mailbox command to HBA to
* unregister the currently registered FCF record. The driver does not reset
* the driver FCF usage state flags.
*
* Return 0 if successfully issued, none-zero otherwise.
*/
int
lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mbox;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2551 UNREG_FCFI mbox allocation failed"
"HBA state x%x\n", phba->pport->port_state);
return -ENOMEM;
}
lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2552 Unregister FCFI command failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
return -EINVAL;
}
return 0;
}
/**
* lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
* @phba: Pointer to hba context object.
*
* This function unregisters the currently reigstered FCF. This function
* also tries to find another FCF for discovery by rescan the HBA FCF table.
*/
void
lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
{
int rc;
/* Preparation for unregistering fcf */
rc = lpfc_unregister_fcf_prep(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2748 Failed to prepare for unregistering "
"HBA's FCF record: rc=%d\n", rc);
return;
}
/* Now, unregister FCF record and reset HBA FCF state */
rc = lpfc_sli4_unregister_fcf(phba);
if (rc)
return;
/* Reset HBA FCF states after successful unregister FCF */
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag = 0;
spin_unlock_irq(&phba->hbalock);
phba->fcf.current_rec.flag = 0;
/*
* If driver is not unloading, check if there is any other
* FCF record that can be used for discovery.
*/
if ((phba->pport->load_flag & FC_UNLOADING) ||
(phba->link_state < LPFC_LINK_UP))
return;
/* This is considered as the initial FCF discovery scan */
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag |= FCF_INIT_DISC;
spin_unlock_irq(&phba->hbalock);
/* Reset FCF roundrobin bmask for new discovery */
lpfc_sli4_clear_fcf_rr_bmask(phba);
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
if (rc) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2553 lpfc_unregister_unused_fcf failed "
"to read FCF record HBA state x%x\n",
phba->pport->port_state);
}
}
/**
* lpfc_unregister_fcf - Unregister the currently registered fcf record
* @phba: Pointer to hba context object.
*
* This function just unregisters the currently reigstered FCF. It does not
* try to find another FCF for discovery.
*/
void
lpfc_unregister_fcf(struct lpfc_hba *phba)
{
int rc;
/* Preparation for unregistering fcf */
rc = lpfc_unregister_fcf_prep(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2749 Failed to prepare for unregistering "
"HBA's FCF record: rc=%d\n", rc);
return;
}
/* Now, unregister FCF record and reset HBA FCF state */
rc = lpfc_sli4_unregister_fcf(phba);
if (rc)
return;
/* Set proper HBA FCF states after successful unregister FCF */
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_REGISTERED;
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
* @phba: Pointer to hba context object.
*
* This function check if there are any connected remote port for the FCF and
* if all the devices are disconnected, this function unregister FCFI.
* This function also tries to use another FCF for discovery.
*/
void
lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
{
/*
* If HBA is not running in FIP mode, if HBA does not support
* FCoE, if FCF discovery is ongoing, or if FCF has not been
* registered, do nothing.
*/
spin_lock_irq(&phba->hbalock);
if (!(phba->hba_flag & HBA_FCOE_MODE) ||
!(phba->fcf.fcf_flag & FCF_REGISTERED) ||
!(phba->hba_flag & HBA_FIP_SUPPORT) ||
(phba->fcf.fcf_flag & FCF_DISCOVERY) ||
(phba->pport->port_state == LPFC_FLOGI)) {
spin_unlock_irq(&phba->hbalock);
return;
}
spin_unlock_irq(&phba->hbalock);
if (lpfc_fcf_inuse(phba))
return;
lpfc_unregister_fcf_rescan(phba);
}
/**
* lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
* @phba: Pointer to hba context object.
* @buff: Buffer containing the FCF connection table as in the config
* region.
* This function create driver data structure for the FCF connection
* record table read from config region 23.
*/
static void
lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
uint8_t *buff)
{
struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
struct lpfc_fcf_conn_hdr *conn_hdr;
struct lpfc_fcf_conn_rec *conn_rec;
uint32_t record_count;
int i;
/* Free the current connect table */
list_for_each_entry_safe(conn_entry, next_conn_entry,
&phba->fcf_conn_rec_list, list) {
list_del_init(&conn_entry->list);
kfree(conn_entry);
}
conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
record_count = conn_hdr->length * sizeof(uint32_t)/
sizeof(struct lpfc_fcf_conn_rec);
conn_rec = (struct lpfc_fcf_conn_rec *)
(buff + sizeof(struct lpfc_fcf_conn_hdr));
for (i = 0; i < record_count; i++) {
if (!(conn_rec[i].flags & FCFCNCT_VALID))
continue;
conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
GFP_KERNEL);
if (!conn_entry) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2566 Failed to allocate connection"
" table entry\n");
return;
}
memcpy(&conn_entry->conn_rec, &conn_rec[i],
sizeof(struct lpfc_fcf_conn_rec));
list_add_tail(&conn_entry->list,
&phba->fcf_conn_rec_list);
}
if (!list_empty(&phba->fcf_conn_rec_list)) {
i = 0;
list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list,
list) {
conn_rec = &conn_entry->conn_rec;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3345 FCF connection list rec[%02d]: "
"flags:x%04x, vtag:x%04x, "
"fabric_name:x%02x:%02x:%02x:%02x:"
"%02x:%02x:%02x:%02x, "
"switch_name:x%02x:%02x:%02x:%02x:"
"%02x:%02x:%02x:%02x\n", i++,
conn_rec->flags, conn_rec->vlan_tag,
conn_rec->fabric_name[0],
conn_rec->fabric_name[1],
conn_rec->fabric_name[2],
conn_rec->fabric_name[3],
conn_rec->fabric_name[4],
conn_rec->fabric_name[5],
conn_rec->fabric_name[6],
conn_rec->fabric_name[7],
conn_rec->switch_name[0],
conn_rec->switch_name[1],
conn_rec->switch_name[2],
conn_rec->switch_name[3],
conn_rec->switch_name[4],
conn_rec->switch_name[5],
conn_rec->switch_name[6],
conn_rec->switch_name[7]);
}
}
}
/**
* lpfc_read_fcoe_param - Read FCoe parameters from conf region..
* @phba: Pointer to hba context object.
* @buff: Buffer containing the FCoE parameter data structure.
*
* This function update driver data structure with config
* parameters read from config region 23.
*/
static void
lpfc_read_fcoe_param(struct lpfc_hba *phba,
uint8_t *buff)
{
struct lpfc_fip_param_hdr *fcoe_param_hdr;
struct lpfc_fcoe_params *fcoe_param;
fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
buff;
fcoe_param = (struct lpfc_fcoe_params *)
(buff + sizeof(struct lpfc_fip_param_hdr));
if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
(fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
return;
if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
phba->valid_vlan = 1;
phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
0xFFF;
}
phba->fc_map[0] = fcoe_param->fc_map[0];
phba->fc_map[1] = fcoe_param->fc_map[1];
phba->fc_map[2] = fcoe_param->fc_map[2];
return;
}
/**
* lpfc_get_rec_conf23 - Get a record type in config region data.
* @buff: Buffer containing config region 23 data.
* @size: Size of the data buffer.
* @rec_type: Record type to be searched.
*
* This function searches config region data to find the beginning
* of the record specified by record_type. If record found, this
* function return pointer to the record else return NULL.
*/
static uint8_t *
lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
{
uint32_t offset = 0, rec_length;
if ((buff[0] == LPFC_REGION23_LAST_REC) ||
(size < sizeof(uint32_t)))
return NULL;
rec_length = buff[offset + 1];
/*
* One TLV record has one word header and number of data words
* specified in the rec_length field of the record header.
*/
while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
<= size) {
if (buff[offset] == rec_type)
return &buff[offset];
if (buff[offset] == LPFC_REGION23_LAST_REC)
return NULL;
offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
rec_length = buff[offset + 1];
}
return NULL;
}
/**
* lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
* @phba: Pointer to lpfc_hba data structure.
* @buff: Buffer containing config region 23 data.
* @size: Size of the data buffer.
*
* This function parses the FCoE config parameters in config region 23 and
* populate driver data structure with the parameters.
*/
void
lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
uint8_t *buff,
uint32_t size)
{
uint32_t offset = 0;
uint8_t *rec_ptr;
/*
* If data size is less than 2 words signature and version cannot be
* verified.
*/
if (size < 2*sizeof(uint32_t))
return;
/* Check the region signature first */
if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2567 Config region 23 has bad signature\n");
return;
}
offset += 4;
/* Check the data structure version */
if (buff[offset] != LPFC_REGION23_VERSION) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2568 Config region 23 has bad version\n");
return;
}
offset += 4;
/* Read FCoE param record */
rec_ptr = lpfc_get_rec_conf23(&buff[offset],
size - offset, FCOE_PARAM_TYPE);
if (rec_ptr)
lpfc_read_fcoe_param(phba, rec_ptr);
/* Read FCF connection table */
rec_ptr = lpfc_get_rec_conf23(&buff[offset],
size - offset, FCOE_CONN_TBL_TYPE);
if (rec_ptr)
lpfc_read_fcf_conn_tbl(phba, rec_ptr);
}
/*
* lpfc_error_lost_link - IO failure from link event or FW reset check.
*
* @vport: Pointer to lpfc_vport data structure.
* @ulp_status: IO completion status.
* @ulp_word4: Reason code for the ulp_status.
*
* This function evaluates the ulp_status and ulp_word4 values
* for specific error values that indicate an internal link fault
* or fw reset event for the completing IO. Callers require this
* common data to decide next steps on the IO.
*
* Return:
* false - No link or reset error occurred.
* true - A link or reset error occurred.
*/
bool
lpfc_error_lost_link(struct lpfc_vport *vport, u32 ulp_status, u32 ulp_word4)
{
/* Mask off the extra port data to get just the reason code. */
u32 rsn_code = IOERR_PARAM_MASK & ulp_word4;
if (ulp_status == IOSTAT_LOCAL_REJECT &&
(rsn_code == IOERR_SLI_ABORTED ||
rsn_code == IOERR_LINK_DOWN ||
rsn_code == IOERR_SLI_DOWN)) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_SLI | LOG_ELS,
"0408 Report link error true: <x%x:x%x>\n",
ulp_status, ulp_word4);
return true;
}
return false;
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_hbadisc.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2007-2015 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/ctype.h>
#include <linux/vmalloc.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_version.h"
#include "lpfc_compat.h"
#include "lpfc_debugfs.h"
#include "lpfc_bsg.h"
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/*
* debugfs interface
*
* To access this interface the user should:
* # mount -t debugfs none /sys/kernel/debug
*
* The lpfc debugfs directory hierarchy is:
* /sys/kernel/debug/lpfc/fnX/vportY
* where X is the lpfc hba function unique_id
* where Y is the vport VPI on that hba
*
* Debugging services available per vport:
* discovery_trace
* This is an ACSII readable file that contains a trace of the last
* lpfc_debugfs_max_disc_trc events that happened on a specific vport.
* See lpfc_debugfs.h for different categories of discovery events.
* To enable the discovery trace, the following module parameters must be set:
* lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
* lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for
* EACH vport. X MUST also be a power of 2.
* lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in
* lpfc_debugfs.h .
*
* slow_ring_trace
* This is an ACSII readable file that contains a trace of the last
* lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
* To enable the slow ring trace, the following module parameters must be set:
* lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
* lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for
* the HBA. X MUST also be a power of 2.
*/
static int lpfc_debugfs_enable = 1;
module_param(lpfc_debugfs_enable, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
/* This MUST be a power of 2 */
static int lpfc_debugfs_max_disc_trc;
module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
"Set debugfs discovery trace depth");
/* This MUST be a power of 2 */
static int lpfc_debugfs_max_slow_ring_trc;
module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
"Set debugfs slow ring trace depth");
/* This MUST be a power of 2 */
static int lpfc_debugfs_max_nvmeio_trc;
module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444);
MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc,
"Set debugfs NVME IO trace depth");
static int lpfc_debugfs_mask_disc_trc;
module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
"Set debugfs discovery trace mask");
#include <linux/debugfs.h>
static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
static unsigned long lpfc_debugfs_start_time = 0L;
/* iDiag */
static struct lpfc_idiag idiag;
/**
* lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
* @vport: The vport to gather the log info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine gathers the lpfc discovery debugfs data from the @vport and
* dumps it to @buf up to @size number of bytes. It will start at the next entry
* in the log and process the log until the end of the buffer. Then it will
* gather from the beginning of the log and process until the current entry.
*
* Notes:
* Discovery logging will be disabled while while this routine dumps the log.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
{
int i, index, len, enable;
uint32_t ms;
struct lpfc_debugfs_trc *dtp;
char *buffer;
buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
if (!buffer)
return 0;
enable = lpfc_debugfs_enable;
lpfc_debugfs_enable = 0;
len = 0;
index = (atomic_read(&vport->disc_trc_cnt) + 1) &
(lpfc_debugfs_max_disc_trc - 1);
for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
dtp = vport->disc_trc + i;
if (!dtp->fmt)
continue;
ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
snprintf(buffer,
LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
dtp->seq_cnt, ms, dtp->fmt);
len += scnprintf(buf+len, size-len, buffer,
dtp->data1, dtp->data2, dtp->data3);
}
for (i = 0; i < index; i++) {
dtp = vport->disc_trc + i;
if (!dtp->fmt)
continue;
ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
snprintf(buffer,
LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
dtp->seq_cnt, ms, dtp->fmt);
len += scnprintf(buf+len, size-len, buffer,
dtp->data1, dtp->data2, dtp->data3);
}
lpfc_debugfs_enable = enable;
kfree(buffer);
return len;
}
/**
* lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
* @phba: The HBA to gather the log info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine gathers the lpfc slow ring debugfs data from the @phba and
* dumps it to @buf up to @size number of bytes. It will start at the next entry
* in the log and process the log until the end of the buffer. Then it will
* gather from the beginning of the log and process until the current entry.
*
* Notes:
* Slow ring logging will be disabled while while this routine dumps the log.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
{
int i, index, len, enable;
uint32_t ms;
struct lpfc_debugfs_trc *dtp;
char *buffer;
buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
if (!buffer)
return 0;
enable = lpfc_debugfs_enable;
lpfc_debugfs_enable = 0;
len = 0;
index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
(lpfc_debugfs_max_slow_ring_trc - 1);
for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
dtp = phba->slow_ring_trc + i;
if (!dtp->fmt)
continue;
ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
snprintf(buffer,
LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
dtp->seq_cnt, ms, dtp->fmt);
len += scnprintf(buf+len, size-len, buffer,
dtp->data1, dtp->data2, dtp->data3);
}
for (i = 0; i < index; i++) {
dtp = phba->slow_ring_trc + i;
if (!dtp->fmt)
continue;
ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
snprintf(buffer,
LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
dtp->seq_cnt, ms, dtp->fmt);
len += scnprintf(buf+len, size-len, buffer,
dtp->data1, dtp->data2, dtp->data3);
}
lpfc_debugfs_enable = enable;
kfree(buffer);
return len;
}
static int lpfc_debugfs_last_hbq = -1;
/**
* lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
* @phba: The HBA to gather host buffer info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the host buffer queue info from the @phba to @buf up to
* @size number of bytes. A header that describes the current hbq state will be
* dumped to @buf first and then info on each hbq entry will be dumped to @buf
* until @size bytes have been dumped or all the hbq info has been dumped.
*
* Notes:
* This routine will rotate through each configured HBQ each time called.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
{
int len = 0;
int i, j, found, posted, low;
uint32_t phys, raw_index, getidx;
struct lpfc_hbq_init *hip;
struct hbq_s *hbqs;
struct lpfc_hbq_entry *hbqe;
struct lpfc_dmabuf *d_buf;
struct hbq_dmabuf *hbq_buf;
if (phba->sli_rev != 3)
return 0;
spin_lock_irq(&phba->hbalock);
/* toggle between multiple hbqs, if any */
i = lpfc_sli_hbq_count();
if (i > 1) {
lpfc_debugfs_last_hbq++;
if (lpfc_debugfs_last_hbq >= i)
lpfc_debugfs_last_hbq = 0;
}
else
lpfc_debugfs_last_hbq = 0;
i = lpfc_debugfs_last_hbq;
len += scnprintf(buf+len, size-len, "HBQ %d Info\n", i);
hbqs = &phba->hbqs[i];
posted = 0;
list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
posted++;
hip = lpfc_hbq_defs[i];
len += scnprintf(buf+len, size-len,
"idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
hip->hbq_index, hip->profile, hip->rn,
hip->buffer_count, hip->init_count, hip->add_count, posted);
raw_index = phba->hbq_get[i];
getidx = le32_to_cpu(raw_index);
len += scnprintf(buf+len, size-len,
"entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
for (j=0; j<hbqs->entry_count; j++) {
len += scnprintf(buf+len, size-len,
"%03d: %08x %04x %05x ", j,
le32_to_cpu(hbqe->bde.addrLow),
le32_to_cpu(hbqe->bde.tus.w),
le32_to_cpu(hbqe->buffer_tag));
i = 0;
found = 0;
/* First calculate if slot has an associated posted buffer */
low = hbqs->hbqPutIdx - posted;
if (low >= 0) {
if ((j >= hbqs->hbqPutIdx) || (j < low)) {
len += scnprintf(buf + len, size - len,
"Unused\n");
goto skipit;
}
}
else {
if ((j >= hbqs->hbqPutIdx) &&
(j < (hbqs->entry_count+low))) {
len += scnprintf(buf + len, size - len,
"Unused\n");
goto skipit;
}
}
/* Get the Buffer info for the posted buffer */
list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
len += scnprintf(buf+len, size-len,
"Buf%d: x%px %06x\n", i,
hbq_buf->dbuf.virt, hbq_buf->tag);
found = 1;
break;
}
i++;
}
if (!found) {
len += scnprintf(buf+len, size-len, "No DMAinfo?\n");
}
skipit:
hbqe++;
if (len > LPFC_HBQINFO_SIZE - 54)
break;
}
spin_unlock_irq(&phba->hbalock);
return len;
}
static int lpfc_debugfs_last_xripool;
/**
* lpfc_debugfs_commonxripools_data - Dump Hardware Queue info to a buffer
* @phba: The HBA to gather host buffer info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the Hardware Queue info from the @phba to @buf up to
* @size number of bytes. A header that describes the current hdwq state will be
* dumped to @buf first and then info on each hdwq entry will be dumped to @buf
* until @size bytes have been dumped or all the hdwq info has been dumped.
*
* Notes:
* This routine will rotate through each configured Hardware Queue each
* time called.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_commonxripools_data(struct lpfc_hba *phba, char *buf, int size)
{
struct lpfc_sli4_hdw_queue *qp;
int len = 0;
int i, out;
unsigned long iflag;
for (i = 0; i < phba->cfg_hdw_queue; i++) {
if (len > (LPFC_DUMP_MULTIXRIPOOL_SIZE - 80))
break;
qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool];
len += scnprintf(buf + len, size - len, "HdwQ %d Info ", i);
spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag);
spin_lock(&qp->io_buf_list_get_lock);
spin_lock(&qp->io_buf_list_put_lock);
out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs +
qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs);
len += scnprintf(buf + len, size - len,
"tot:%d get:%d put:%d mt:%d "
"ABTS scsi:%d nvme:%d Out:%d\n",
qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs,
qp->empty_io_bufs, qp->abts_scsi_io_bufs,
qp->abts_nvme_io_bufs, out);
spin_unlock(&qp->io_buf_list_put_lock);
spin_unlock(&qp->io_buf_list_get_lock);
spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag);
lpfc_debugfs_last_xripool++;
if (lpfc_debugfs_last_xripool >= phba->cfg_hdw_queue)
lpfc_debugfs_last_xripool = 0;
}
return len;
}
/**
* lpfc_debugfs_multixripools_data - Display multi-XRI pools information
* @phba: The HBA to gather host buffer info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine displays current multi-XRI pools information including XRI
* count in public, private and txcmplq. It also displays current high and
* low watermark.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_multixripools_data(struct lpfc_hba *phba, char *buf, int size)
{
u32 i;
u32 hwq_count;
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_multixri_pool *multixri_pool;
struct lpfc_pvt_pool *pvt_pool;
struct lpfc_pbl_pool *pbl_pool;
u32 txcmplq_cnt;
char tmp[LPFC_DEBUG_OUT_LINE_SZ] = {0};
if (phba->sli_rev != LPFC_SLI_REV4)
return 0;
if (!phba->sli4_hba.hdwq)
return 0;
if (!phba->cfg_xri_rebalancing) {
i = lpfc_debugfs_commonxripools_data(phba, buf, size);
return i;
}
/*
* Pbl: Current number of free XRIs in public pool
* Pvt: Current number of free XRIs in private pool
* Busy: Current number of outstanding XRIs
* HWM: Current high watermark
* pvt_empty: Incremented by 1 when IO submission fails (no xri)
* pbl_empty: Incremented by 1 when all pbl_pool are empty during
* IO submission
*/
scnprintf(tmp, sizeof(tmp),
"HWQ: Pbl Pvt Busy HWM | pvt_empty pbl_empty ");
if (strlcat(buf, tmp, size) >= size)
return strnlen(buf, size);
#ifdef LPFC_MXP_STAT
/*
* MAXH: Max high watermark seen so far
* above_lmt: Incremented by 1 if xri_owned > xri_limit during
* IO submission
* below_lmt: Incremented by 1 if xri_owned <= xri_limit during
* IO submission
* locPbl_hit: Incremented by 1 if successfully get a batch of XRI from
* local pbl_pool
* othPbl_hit: Incremented by 1 if successfully get a batch of XRI from
* other pbl_pool
*/
scnprintf(tmp, sizeof(tmp),
"MAXH above_lmt below_lmt locPbl_hit othPbl_hit");
if (strlcat(buf, tmp, size) >= size)
return strnlen(buf, size);
/*
* sPbl: snapshot of Pbl 15 sec after stat gets cleared
* sPvt: snapshot of Pvt 15 sec after stat gets cleared
* sBusy: snapshot of Busy 15 sec after stat gets cleared
*/
scnprintf(tmp, sizeof(tmp),
" | sPbl sPvt sBusy");
if (strlcat(buf, tmp, size) >= size)
return strnlen(buf, size);
#endif
scnprintf(tmp, sizeof(tmp), "\n");
if (strlcat(buf, tmp, size) >= size)
return strnlen(buf, size);
hwq_count = phba->cfg_hdw_queue;
for (i = 0; i < hwq_count; i++) {
qp = &phba->sli4_hba.hdwq[i];
multixri_pool = qp->p_multixri_pool;
if (!multixri_pool)
continue;
pbl_pool = &multixri_pool->pbl_pool;
pvt_pool = &multixri_pool->pvt_pool;
txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
scnprintf(tmp, sizeof(tmp),
"%03d: %4d %4d %4d %4d | %10d %10d ",
i, pbl_pool->count, pvt_pool->count,
txcmplq_cnt, pvt_pool->high_watermark,
qp->empty_io_bufs, multixri_pool->pbl_empty_count);
if (strlcat(buf, tmp, size) >= size)
break;
#ifdef LPFC_MXP_STAT
scnprintf(tmp, sizeof(tmp),
"%4d %10d %10d %10d %10d",
multixri_pool->stat_max_hwm,
multixri_pool->above_limit_count,
multixri_pool->below_limit_count,
multixri_pool->local_pbl_hit_count,
multixri_pool->other_pbl_hit_count);
if (strlcat(buf, tmp, size) >= size)
break;
scnprintf(tmp, sizeof(tmp),
" | %4d %4d %5d",
multixri_pool->stat_pbl_count,
multixri_pool->stat_pvt_count,
multixri_pool->stat_busy_count);
if (strlcat(buf, tmp, size) >= size)
break;
#endif
scnprintf(tmp, sizeof(tmp), "\n");
if (strlcat(buf, tmp, size) >= size)
break;
}
return strnlen(buf, size);
}
#ifdef LPFC_HDWQ_LOCK_STAT
static int lpfc_debugfs_last_lock;
/**
* lpfc_debugfs_lockstat_data - Dump Hardware Queue info to a buffer
* @phba: The HBA to gather host buffer info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the Hardware Queue info from the @phba to @buf up to
* @size number of bytes. A header that describes the current hdwq state will be
* dumped to @buf first and then info on each hdwq entry will be dumped to @buf
* until @size bytes have been dumped or all the hdwq info has been dumped.
*
* Notes:
* This routine will rotate through each configured Hardware Queue each
* time called.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_lockstat_data(struct lpfc_hba *phba, char *buf, int size)
{
struct lpfc_sli4_hdw_queue *qp;
int len = 0;
int i;
if (phba->sli_rev != LPFC_SLI_REV4)
return 0;
if (!phba->sli4_hba.hdwq)
return 0;
for (i = 0; i < phba->cfg_hdw_queue; i++) {
if (len > (LPFC_HDWQINFO_SIZE - 100))
break;
qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock];
len += scnprintf(buf + len, size - len, "HdwQ %03d Lock ", i);
if (phba->cfg_xri_rebalancing) {
len += scnprintf(buf + len, size - len,
"get_pvt:%d mv_pvt:%d "
"mv2pub:%d mv2pvt:%d "
"put_pvt:%d put_pub:%d wq:%d\n",
qp->lock_conflict.alloc_pvt_pool,
qp->lock_conflict.mv_from_pvt_pool,
qp->lock_conflict.mv_to_pub_pool,
qp->lock_conflict.mv_to_pvt_pool,
qp->lock_conflict.free_pvt_pool,
qp->lock_conflict.free_pub_pool,
qp->lock_conflict.wq_access);
} else {
len += scnprintf(buf + len, size - len,
"get:%d put:%d free:%d wq:%d\n",
qp->lock_conflict.alloc_xri_get,
qp->lock_conflict.alloc_xri_put,
qp->lock_conflict.free_xri,
qp->lock_conflict.wq_access);
}
lpfc_debugfs_last_lock++;
if (lpfc_debugfs_last_lock >= phba->cfg_hdw_queue)
lpfc_debugfs_last_lock = 0;
}
return len;
}
#endif
static int lpfc_debugfs_last_hba_slim_off;
/**
* lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
* @phba: The HBA to gather SLIM info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the current contents of HBA SLIM for the HBA associated
* with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
*
* Notes:
* This routine will only dump up to 1024 bytes of data each time called and
* should be called multiple times to dump the entire HBA SLIM.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
{
int len = 0;
int i, off;
uint32_t *ptr;
char *buffer;
buffer = kmalloc(1024, GFP_KERNEL);
if (!buffer)
return 0;
off = 0;
spin_lock_irq(&phba->hbalock);
len += scnprintf(buf+len, size-len, "HBA SLIM\n");
lpfc_memcpy_from_slim(buffer,
phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
ptr = (uint32_t *)&buffer[0];
off = lpfc_debugfs_last_hba_slim_off;
/* Set it up for the next time */
lpfc_debugfs_last_hba_slim_off += 1024;
if (lpfc_debugfs_last_hba_slim_off >= 4096)
lpfc_debugfs_last_hba_slim_off = 0;
i = 1024;
while (i > 0) {
len += scnprintf(buf+len, size-len,
"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
*(ptr+5), *(ptr+6), *(ptr+7));
ptr += 8;
i -= (8 * sizeof(uint32_t));
off += (8 * sizeof(uint32_t));
}
spin_unlock_irq(&phba->hbalock);
kfree(buffer);
return len;
}
/**
* lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
* @phba: The HBA to gather Host SLIM info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the current contents of host SLIM for the host associated
* with @phba to @buf up to @size bytes of data. The dump will contain the
* Mailbox, PCB, Rings, and Registers that are located in host memory.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
{
int len = 0;
int i, off;
uint32_t word0, word1, word2, word3;
uint32_t *ptr;
struct lpfc_pgp *pgpp;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
off = 0;
spin_lock_irq(&phba->hbalock);
len += scnprintf(buf+len, size-len, "SLIM Mailbox\n");
ptr = (uint32_t *)phba->slim2p.virt;
i = sizeof(MAILBOX_t);
while (i > 0) {
len += scnprintf(buf+len, size-len,
"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
*(ptr+5), *(ptr+6), *(ptr+7));
ptr += 8;
i -= (8 * sizeof(uint32_t));
off += (8 * sizeof(uint32_t));
}
len += scnprintf(buf+len, size-len, "SLIM PCB\n");
ptr = (uint32_t *)phba->pcb;
i = sizeof(PCB_t);
while (i > 0) {
len += scnprintf(buf+len, size-len,
"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
*(ptr+5), *(ptr+6), *(ptr+7));
ptr += 8;
i -= (8 * sizeof(uint32_t));
off += (8 * sizeof(uint32_t));
}
if (phba->sli_rev <= LPFC_SLI_REV3) {
for (i = 0; i < 4; i++) {
pgpp = &phba->port_gp[i];
pring = &psli->sli3_ring[i];
len += scnprintf(buf+len, size-len,
"Ring %d: CMD GetInx:%d "
"(Max:%d Next:%d "
"Local:%d flg:x%x) "
"RSP PutInx:%d Max:%d\n",
i, pgpp->cmdGetInx,
pring->sli.sli3.numCiocb,
pring->sli.sli3.next_cmdidx,
pring->sli.sli3.local_getidx,
pring->flag, pgpp->rspPutInx,
pring->sli.sli3.numRiocb);
}
word0 = readl(phba->HAregaddr);
word1 = readl(phba->CAregaddr);
word2 = readl(phba->HSregaddr);
word3 = readl(phba->HCregaddr);
len += scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
"HC:%08x\n", word0, word1, word2, word3);
}
spin_unlock_irq(&phba->hbalock);
return len;
}
/**
* lpfc_debugfs_nodelist_data - Dump target node list to a buffer
* @vport: The vport to gather target node info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the current target node list associated with @vport to
* @buf up to @size bytes of data. Each node entry in the dump will contain a
* node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
{
int len = 0;
int i, iocnt, outio, cnt;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp;
unsigned char *statep;
struct nvme_fc_local_port *localport;
struct nvme_fc_remote_port *nrport = NULL;
struct lpfc_nvme_rport *rport;
cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
outio = 0;
len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
iocnt = 0;
if (!cnt) {
len += scnprintf(buf+len, size-len,
"Missing Nodelist Entries\n");
break;
}
cnt--;
switch (ndlp->nlp_state) {
case NLP_STE_UNUSED_NODE:
statep = "UNUSED";
break;
case NLP_STE_PLOGI_ISSUE:
statep = "PLOGI ";
break;
case NLP_STE_ADISC_ISSUE:
statep = "ADISC ";
break;
case NLP_STE_REG_LOGIN_ISSUE:
statep = "REGLOG";
break;
case NLP_STE_PRLI_ISSUE:
statep = "PRLI ";
break;
case NLP_STE_LOGO_ISSUE:
statep = "LOGO ";
break;
case NLP_STE_UNMAPPED_NODE:
statep = "UNMAP ";
iocnt = 1;
break;
case NLP_STE_MAPPED_NODE:
statep = "MAPPED";
iocnt = 1;
break;
case NLP_STE_NPR_NODE:
statep = "NPR ";
break;
default:
statep = "UNKNOWN";
}
len += scnprintf(buf+len, size-len, "%s DID:x%06x ",
statep, ndlp->nlp_DID);
len += scnprintf(buf+len, size-len,
"WWPN x%016llx ",
wwn_to_u64(ndlp->nlp_portname.u.wwn));
len += scnprintf(buf+len, size-len,
"WWNN x%016llx ",
wwn_to_u64(ndlp->nlp_nodename.u.wwn));
len += scnprintf(buf+len, size-len, "RPI:x%04x ",
ndlp->nlp_rpi);
len += scnprintf(buf+len, size-len, "flag:x%08x ",
ndlp->nlp_flag);
if (!ndlp->nlp_type)
len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE ");
if (ndlp->nlp_type & NLP_FC_NODE)
len += scnprintf(buf+len, size-len, "FC_NODE ");
if (ndlp->nlp_type & NLP_FABRIC) {
len += scnprintf(buf+len, size-len, "FABRIC ");
iocnt = 0;
}
if (ndlp->nlp_type & NLP_FCP_TARGET)
len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ",
ndlp->nlp_sid);
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
len += scnprintf(buf+len, size-len, "FCP_INITIATOR ");
if (ndlp->nlp_type & NLP_NVME_TARGET)
len += scnprintf(buf + len,
size - len, "NVME_TGT sid:%d ",
NLP_NO_SID);
if (ndlp->nlp_type & NLP_NVME_INITIATOR)
len += scnprintf(buf + len,
size - len, "NVME_INITIATOR ");
len += scnprintf(buf+len, size-len, "refcnt:%d",
kref_read(&ndlp->kref));
if (iocnt) {
i = atomic_read(&ndlp->cmd_pending);
len += scnprintf(buf + len, size - len,
" OutIO:x%x Qdepth x%x",
i, ndlp->cmd_qdepth);
outio += i;
}
len += scnprintf(buf+len, size-len, " xpt:x%x",
ndlp->fc4_xpt_flags);
if (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)
len += scnprintf(buf+len, size-len, " defer:%x",
ndlp->nlp_defer_did);
len += scnprintf(buf+len, size-len, "\n");
}
spin_unlock_irq(shost->host_lock);
len += scnprintf(buf + len, size - len,
"\nOutstanding IO x%x\n", outio);
if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) {
len += scnprintf(buf + len, size - len,
"\nNVME Targetport Entry ...\n");
/* Port state is only one of two values for now. */
if (phba->targetport->port_id)
statep = "REGISTERED";
else
statep = "INIT";
len += scnprintf(buf + len, size - len,
"TGT WWNN x%llx WWPN x%llx State %s\n",
wwn_to_u64(vport->fc_nodename.u.wwn),
wwn_to_u64(vport->fc_portname.u.wwn),
statep);
len += scnprintf(buf + len, size - len,
" Targetport DID x%06x\n",
phba->targetport->port_id);
goto out_exit;
}
len += scnprintf(buf + len, size - len,
"\nNVME Lport/Rport Entries ...\n");
localport = vport->localport;
if (!localport)
goto out_exit;
spin_lock_irq(shost->host_lock);
/* Port state is only one of two values for now. */
if (localport->port_id)
statep = "ONLINE";
else
statep = "UNKNOWN ";
len += scnprintf(buf + len, size - len,
"Lport DID x%06x PortState %s\n",
localport->port_id, statep);
len += scnprintf(buf + len, size - len, "\tRport List:\n");
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
/* local short-hand pointer. */
spin_lock(&ndlp->lock);
rport = lpfc_ndlp_get_nrport(ndlp);
if (rport)
nrport = rport->remoteport;
else
nrport = NULL;
spin_unlock(&ndlp->lock);
if (!nrport)
continue;
/* Port state is only one of two values for now. */
switch (nrport->port_state) {
case FC_OBJSTATE_ONLINE:
statep = "ONLINE";
break;
case FC_OBJSTATE_UNKNOWN:
statep = "UNKNOWN ";
break;
default:
statep = "UNSUPPORTED";
break;
}
/* Tab in to show lport ownership. */
len += scnprintf(buf + len, size - len,
"\t%s Port ID:x%06x ",
statep, nrport->port_id);
len += scnprintf(buf + len, size - len, "WWPN x%llx ",
nrport->port_name);
len += scnprintf(buf + len, size - len, "WWNN x%llx ",
nrport->node_name);
/* An NVME rport can have multiple roles. */
if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR)
len += scnprintf(buf + len, size - len,
"INITIATOR ");
if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET)
len += scnprintf(buf + len, size - len,
"TARGET ");
if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY)
len += scnprintf(buf + len, size - len,
"DISCSRVC ");
if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
FC_PORT_ROLE_NVME_TARGET |
FC_PORT_ROLE_NVME_DISCOVERY))
len += scnprintf(buf + len, size - len,
"UNKNOWN ROLE x%x",
nrport->port_role);
/* Terminate the string. */
len += scnprintf(buf + len, size - len, "\n");
}
spin_unlock_irq(shost->host_lock);
out_exit:
return len;
}
/**
* lpfc_debugfs_nvmestat_data - Dump target node list to a buffer
* @vport: The vport to gather target node info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the NVME statistics associated with @vport
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_nvmet_tgtport *tgtp;
struct lpfc_async_xchg_ctx *ctxp, *next_ctxp;
struct nvme_fc_local_port *localport;
struct lpfc_fc4_ctrl_stat *cstat;
struct lpfc_nvme_lport *lport;
uint64_t data1, data2, data3;
uint64_t tot, totin, totout;
int cnt, i;
int len = 0;
if (phba->nvmet_support) {
if (!phba->targetport)
return len;
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
len += scnprintf(buf + len, size - len,
"\nNVME Targetport Statistics\n");
len += scnprintf(buf + len, size - len,
"LS: Rcv %08x Drop %08x Abort %08x\n",
atomic_read(&tgtp->rcv_ls_req_in),
atomic_read(&tgtp->rcv_ls_req_drop),
atomic_read(&tgtp->xmt_ls_abort));
if (atomic_read(&tgtp->rcv_ls_req_in) !=
atomic_read(&tgtp->rcv_ls_req_out)) {
len += scnprintf(buf + len, size - len,
"Rcv LS: in %08x != out %08x\n",
atomic_read(&tgtp->rcv_ls_req_in),
atomic_read(&tgtp->rcv_ls_req_out));
}
len += scnprintf(buf + len, size - len,
"LS: Xmt %08x Drop %08x Cmpl %08x\n",
atomic_read(&tgtp->xmt_ls_rsp),
atomic_read(&tgtp->xmt_ls_drop),
atomic_read(&tgtp->xmt_ls_rsp_cmpl));
len += scnprintf(buf + len, size - len,
"LS: RSP Abort %08x xb %08x Err %08x\n",
atomic_read(&tgtp->xmt_ls_rsp_aborted),
atomic_read(&tgtp->xmt_ls_rsp_xb_set),
atomic_read(&tgtp->xmt_ls_rsp_error));
len += scnprintf(buf + len, size - len,
"FCP: Rcv %08x Defer %08x Release %08x "
"Drop %08x\n",
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_defer),
atomic_read(&tgtp->xmt_fcp_release),
atomic_read(&tgtp->rcv_fcp_cmd_drop));
if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
atomic_read(&tgtp->rcv_fcp_cmd_out)) {
len += scnprintf(buf + len, size - len,
"Rcv FCP: in %08x != out %08x\n",
atomic_read(&tgtp->rcv_fcp_cmd_in),
atomic_read(&tgtp->rcv_fcp_cmd_out));
}
len += scnprintf(buf + len, size - len,
"FCP Rsp: read %08x readrsp %08x "
"write %08x rsp %08x\n",
atomic_read(&tgtp->xmt_fcp_read),
atomic_read(&tgtp->xmt_fcp_read_rsp),
atomic_read(&tgtp->xmt_fcp_write),
atomic_read(&tgtp->xmt_fcp_rsp));
len += scnprintf(buf + len, size - len,
"FCP Rsp Cmpl: %08x err %08x drop %08x\n",
atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
atomic_read(&tgtp->xmt_fcp_rsp_error),
atomic_read(&tgtp->xmt_fcp_rsp_drop));
len += scnprintf(buf + len, size - len,
"FCP Rsp Abort: %08x xb %08x xricqe %08x\n",
atomic_read(&tgtp->xmt_fcp_rsp_aborted),
atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
len += scnprintf(buf + len, size - len,
"ABORT: Xmt %08x Cmpl %08x\n",
atomic_read(&tgtp->xmt_fcp_abort),
atomic_read(&tgtp->xmt_fcp_abort_cmpl));
len += scnprintf(buf + len, size - len,
"ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x",
atomic_read(&tgtp->xmt_abort_sol),
atomic_read(&tgtp->xmt_abort_unsol),
atomic_read(&tgtp->xmt_abort_rsp),
atomic_read(&tgtp->xmt_abort_rsp_error));
len += scnprintf(buf + len, size - len, "\n");
cnt = 0;
spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_for_each_entry_safe(ctxp, next_ctxp,
&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
list) {
cnt++;
}
spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
if (cnt) {
len += scnprintf(buf + len, size - len,
"ABORT: %d ctx entries\n", cnt);
spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
list_for_each_entry_safe(ctxp, next_ctxp,
&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
list) {
if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ))
break;
len += scnprintf(buf + len, size - len,
"Entry: oxid %x state %x "
"flag %x\n",
ctxp->oxid, ctxp->state,
ctxp->flag);
}
spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
}
/* Calculate outstanding IOs */
tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
tot += atomic_read(&tgtp->xmt_fcp_release);
tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
len += scnprintf(buf + len, size - len,
"IO_CTX: %08x WAIT: cur %08x tot %08x\n"
"CTX Outstanding %08llx\n",
phba->sli4_hba.nvmet_xri_cnt,
phba->sli4_hba.nvmet_io_wait_cnt,
phba->sli4_hba.nvmet_io_wait_total,
tot);
} else {
if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
return len;
localport = vport->localport;
if (!localport)
return len;
lport = (struct lpfc_nvme_lport *)localport->private;
if (!lport)
return len;
len += scnprintf(buf + len, size - len,
"\nNVME HDWQ Statistics\n");
len += scnprintf(buf + len, size - len,
"LS: Xmt %016x Cmpl %016x\n",
atomic_read(&lport->fc4NvmeLsRequests),
atomic_read(&lport->fc4NvmeLsCmpls));
totin = 0;
totout = 0;
for (i = 0; i < phba->cfg_hdw_queue; i++) {
cstat = &phba->sli4_hba.hdwq[i].nvme_cstat;
tot = cstat->io_cmpls;
totin += tot;
data1 = cstat->input_requests;
data2 = cstat->output_requests;
data3 = cstat->control_requests;
totout += (data1 + data2 + data3);
/* Limit to 32, debugfs display buffer limitation */
if (i >= 32)
continue;
len += scnprintf(buf + len, PAGE_SIZE - len,
"HDWQ (%d): Rd %016llx Wr %016llx "
"IO %016llx ",
i, data1, data2, data3);
len += scnprintf(buf + len, PAGE_SIZE - len,
"Cmpl %016llx OutIO %016llx\n",
tot, ((data1 + data2 + data3) - tot));
}
len += scnprintf(buf + len, PAGE_SIZE - len,
"Total FCP Cmpl %016llx Issue %016llx "
"OutIO %016llx\n",
totin, totout, totout - totin);
len += scnprintf(buf + len, size - len,
"LS Xmt Err: Abrt %08x Err %08x "
"Cmpl Err: xb %08x Err %08x\n",
atomic_read(&lport->xmt_ls_abort),
atomic_read(&lport->xmt_ls_err),
atomic_read(&lport->cmpl_ls_xb),
atomic_read(&lport->cmpl_ls_err));
len += scnprintf(buf + len, size - len,
"FCP Xmt Err: noxri %06x nondlp %06x "
"qdepth %06x wqerr %06x err %06x Abrt %06x\n",
atomic_read(&lport->xmt_fcp_noxri),
atomic_read(&lport->xmt_fcp_bad_ndlp),
atomic_read(&lport->xmt_fcp_qdepth),
atomic_read(&lport->xmt_fcp_wqerr),
atomic_read(&lport->xmt_fcp_err),
atomic_read(&lport->xmt_fcp_abort));
len += scnprintf(buf + len, size - len,
"FCP Cmpl Err: xb %08x Err %08x\n",
atomic_read(&lport->cmpl_fcp_xb),
atomic_read(&lport->cmpl_fcp_err));
}
return len;
}
/**
* lpfc_debugfs_scsistat_data - Dump target node list to a buffer
* @vport: The vport to gather target node info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the SCSI statistics associated with @vport
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size)
{
int len;
struct lpfc_hba *phba = vport->phba;
struct lpfc_fc4_ctrl_stat *cstat;
u64 data1, data2, data3;
u64 tot, totin, totout;
int i;
char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ||
(phba->sli_rev != LPFC_SLI_REV4))
return 0;
scnprintf(buf, size, "SCSI HDWQ Statistics\n");
totin = 0;
totout = 0;
for (i = 0; i < phba->cfg_hdw_queue; i++) {
cstat = &phba->sli4_hba.hdwq[i].scsi_cstat;
tot = cstat->io_cmpls;
totin += tot;
data1 = cstat->input_requests;
data2 = cstat->output_requests;
data3 = cstat->control_requests;
totout += (data1 + data2 + data3);
scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx "
"IO %016llx ", i, data1, data2, data3);
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n",
tot, ((data1 + data2 + data3) - tot));
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
}
scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx "
"OutIO %016llx\n", totin, totout, totout - totin);
strlcat(buf, tmp, size);
buffer_done:
len = strnlen(buf, size);
return len;
}
void
lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
{
uint64_t seg1, seg2, seg3, seg4;
uint64_t segsum;
if (!lpfc_cmd->ts_last_cmd ||
!lpfc_cmd->ts_cmd_start ||
!lpfc_cmd->ts_cmd_wqput ||
!lpfc_cmd->ts_isr_cmpl ||
!lpfc_cmd->ts_data_io)
return;
if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start)
return;
if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd)
return;
if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start)
return;
if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput)
return;
if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl)
return;
/*
* Segment 1 - Time from Last FCP command cmpl is handed
* off to NVME Layer to start of next command.
* Segment 2 - Time from Driver receives a IO cmd start
* from NVME Layer to WQ put is done on IO cmd.
* Segment 3 - Time from Driver WQ put is done on IO cmd
* to MSI-X ISR for IO cmpl.
* Segment 4 - Time from MSI-X ISR for IO cmpl to when
* cmpl is handled off to the NVME Layer.
*/
seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd;
if (seg1 > 5000000) /* 5 ms - for sequential IOs only */
seg1 = 0;
/* Calculate times relative to start of IO */
seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start);
segsum = seg2;
seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start;
if (segsum > seg3)
return;
seg3 -= segsum;
segsum += seg3;
seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start;
if (segsum > seg4)
return;
seg4 -= segsum;
phba->ktime_data_samples++;
phba->ktime_seg1_total += seg1;
if (seg1 < phba->ktime_seg1_min)
phba->ktime_seg1_min = seg1;
else if (seg1 > phba->ktime_seg1_max)
phba->ktime_seg1_max = seg1;
phba->ktime_seg2_total += seg2;
if (seg2 < phba->ktime_seg2_min)
phba->ktime_seg2_min = seg2;
else if (seg2 > phba->ktime_seg2_max)
phba->ktime_seg2_max = seg2;
phba->ktime_seg3_total += seg3;
if (seg3 < phba->ktime_seg3_min)
phba->ktime_seg3_min = seg3;
else if (seg3 > phba->ktime_seg3_max)
phba->ktime_seg3_max = seg3;
phba->ktime_seg4_total += seg4;
if (seg4 < phba->ktime_seg4_min)
phba->ktime_seg4_min = seg4;
else if (seg4 > phba->ktime_seg4_max)
phba->ktime_seg4_max = seg4;
lpfc_cmd->ts_last_cmd = 0;
lpfc_cmd->ts_cmd_start = 0;
lpfc_cmd->ts_cmd_wqput = 0;
lpfc_cmd->ts_isr_cmpl = 0;
lpfc_cmd->ts_data_io = 0;
}
/**
* lpfc_debugfs_ioktime_data - Dump target node list to a buffer
* @vport: The vport to gather target node info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the NVME statistics associated with @vport
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size)
{
struct lpfc_hba *phba = vport->phba;
int len = 0;
if (phba->nvmet_support == 0) {
/* Initiator */
len += scnprintf(buf + len, PAGE_SIZE - len,
"ktime %s: Total Samples: %lld\n",
(phba->ktime_on ? "Enabled" : "Disabled"),
phba->ktime_data_samples);
if (phba->ktime_data_samples == 0)
return len;
len += scnprintf(
buf + len, PAGE_SIZE - len,
"Segment 1: Last Cmd cmpl "
"done -to- Start of next Cmd (in driver)\n");
len += scnprintf(
buf + len, PAGE_SIZE - len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg1_total,
phba->ktime_data_samples),
phba->ktime_seg1_min,
phba->ktime_seg1_max);
len += scnprintf(
buf + len, PAGE_SIZE - len,
"Segment 2: Driver start of Cmd "
"-to- Firmware WQ doorbell\n");
len += scnprintf(
buf + len, PAGE_SIZE - len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg2_total,
phba->ktime_data_samples),
phba->ktime_seg2_min,
phba->ktime_seg2_max);
len += scnprintf(
buf + len, PAGE_SIZE - len,
"Segment 3: Firmware WQ doorbell -to- "
"MSI-X ISR cmpl\n");
len += scnprintf(
buf + len, PAGE_SIZE - len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg3_total,
phba->ktime_data_samples),
phba->ktime_seg3_min,
phba->ktime_seg3_max);
len += scnprintf(
buf + len, PAGE_SIZE - len,
"Segment 4: MSI-X ISR cmpl -to- "
"Cmd cmpl done\n");
len += scnprintf(
buf + len, PAGE_SIZE - len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg4_total,
phba->ktime_data_samples),
phba->ktime_seg4_min,
phba->ktime_seg4_max);
len += scnprintf(
buf + len, PAGE_SIZE - len,
"Total IO avg time: %08lld\n",
div_u64(phba->ktime_seg1_total +
phba->ktime_seg2_total +
phba->ktime_seg3_total +
phba->ktime_seg4_total,
phba->ktime_data_samples));
return len;
}
/* NVME Target */
len += scnprintf(buf + len, PAGE_SIZE-len,
"ktime %s: Total Samples: %lld %lld\n",
(phba->ktime_on ? "Enabled" : "Disabled"),
phba->ktime_data_samples,
phba->ktime_status_samples);
if (phba->ktime_data_samples == 0)
return len;
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 1: MSI-X ISR Rcv cmd -to- "
"cmd pass to NVME Layer\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg1_total,
phba->ktime_data_samples),
phba->ktime_seg1_min,
phba->ktime_seg1_max);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 2: cmd pass to NVME Layer- "
"-to- Driver rcv cmd OP (action)\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg2_total,
phba->ktime_data_samples),
phba->ktime_seg2_min,
phba->ktime_seg2_max);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 3: Driver rcv cmd OP -to- "
"Firmware WQ doorbell: cmd\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg3_total,
phba->ktime_data_samples),
phba->ktime_seg3_min,
phba->ktime_seg3_max);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 4: Firmware WQ doorbell: cmd "
"-to- MSI-X ISR for cmd cmpl\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg4_total,
phba->ktime_data_samples),
phba->ktime_seg4_min,
phba->ktime_seg4_max);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 5: MSI-X ISR for cmd cmpl "
"-to- NVME layer passed cmd done\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg5_total,
phba->ktime_data_samples),
phba->ktime_seg5_min,
phba->ktime_seg5_max);
if (phba->ktime_status_samples == 0) {
len += scnprintf(buf + len, PAGE_SIZE-len,
"Total: cmd received by MSI-X ISR "
"-to- cmd completed on wire\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld "
"max %08lld\n",
div_u64(phba->ktime_seg10_total,
phba->ktime_data_samples),
phba->ktime_seg10_min,
phba->ktime_seg10_max);
return len;
}
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 6: NVME layer passed cmd done "
"-to- Driver rcv rsp status OP\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg6_total,
phba->ktime_status_samples),
phba->ktime_seg6_min,
phba->ktime_seg6_max);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 7: Driver rcv rsp status OP "
"-to- Firmware WQ doorbell: status\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg7_total,
phba->ktime_status_samples),
phba->ktime_seg7_min,
phba->ktime_seg7_max);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 8: Firmware WQ doorbell: status"
" -to- MSI-X ISR for status cmpl\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg8_total,
phba->ktime_status_samples),
phba->ktime_seg8_min,
phba->ktime_seg8_max);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Segment 9: MSI-X ISR for status cmpl "
"-to- NVME layer passed status done\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg9_total,
phba->ktime_status_samples),
phba->ktime_seg9_min,
phba->ktime_seg9_max);
len += scnprintf(buf + len, PAGE_SIZE-len,
"Total: cmd received by MSI-X ISR -to- "
"cmd completed on wire\n");
len += scnprintf(buf + len, PAGE_SIZE-len,
"avg:%08lld min:%08lld max %08lld\n",
div_u64(phba->ktime_seg10_total,
phba->ktime_status_samples),
phba->ktime_seg10_min,
phba->ktime_seg10_max);
return len;
}
/**
* lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer
* @phba: The phba to gather target node info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the NVME IO trace associated with @phba
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
{
struct lpfc_debugfs_nvmeio_trc *dtp;
int i, state, index, skip;
int len = 0;
state = phba->nvmeio_trc_on;
index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) &
(phba->nvmeio_trc_size - 1);
skip = phba->nvmeio_trc_output_idx;
len += scnprintf(buf + len, size - len,
"%s IO Trace %s: next_idx %d skip %d size %d\n",
(phba->nvmet_support ? "NVME" : "NVMET"),
(state ? "Enabled" : "Disabled"),
index, skip, phba->nvmeio_trc_size);
if (!phba->nvmeio_trc || state)
return len;
/* trace MUST bhe off to continue */
for (i = index; i < phba->nvmeio_trc_size; i++) {
if (skip) {
skip--;
continue;
}
dtp = phba->nvmeio_trc + i;
phba->nvmeio_trc_output_idx++;
if (!dtp->fmt)
continue;
len += scnprintf(buf + len, size - len, dtp->fmt,
dtp->data1, dtp->data2, dtp->data3);
if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
phba->nvmeio_trc_output_idx = 0;
len += scnprintf(buf + len, size - len,
"Trace Complete\n");
goto out;
}
if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
len += scnprintf(buf + len, size - len,
"Trace Continue (%d of %d)\n",
phba->nvmeio_trc_output_idx,
phba->nvmeio_trc_size);
goto out;
}
}
for (i = 0; i < index; i++) {
if (skip) {
skip--;
continue;
}
dtp = phba->nvmeio_trc + i;
phba->nvmeio_trc_output_idx++;
if (!dtp->fmt)
continue;
len += scnprintf(buf + len, size - len, dtp->fmt,
dtp->data1, dtp->data2, dtp->data3);
if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
phba->nvmeio_trc_output_idx = 0;
len += scnprintf(buf + len, size - len,
"Trace Complete\n");
goto out;
}
if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
len += scnprintf(buf + len, size - len,
"Trace Continue (%d of %d)\n",
phba->nvmeio_trc_output_idx,
phba->nvmeio_trc_size);
goto out;
}
}
len += scnprintf(buf + len, size - len,
"Trace Done\n");
out:
return len;
}
/**
* lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer
* @vport: The vport to gather target node info from.
* @buf: The buffer to dump log into.
* @size: The maximum amount of data to process.
*
* Description:
* This routine dumps the NVME + SCSI statistics associated with @vport
*
* Return Value:
* This routine returns the amount of bytes that were dumped into @buf and will
* not exceed @size.
**/
static int
lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_hdwq_stat *c_stat;
int i, j, len;
uint32_t tot_xmt;
uint32_t tot_rcv;
uint32_t tot_cmpl;
char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n");
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ",
(phba->hdwqstat_on &
(LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ?
"Enabled" : "Disabled"));
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ",
(phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ?
"Enabled" : "Disabled"));
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
scnprintf(tmp, sizeof(tmp), "\n\n");
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
for (i = 0; i < phba->cfg_hdw_queue; i++) {
tot_rcv = 0;
tot_xmt = 0;
tot_cmpl = 0;
for_each_present_cpu(j) {
c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j);
/* Only display for this HDWQ */
if (i != c_stat->hdwq_no)
continue;
/* Only display non-zero counters */
if (!c_stat->xmt_io && !c_stat->cmpl_io &&
!c_stat->rcv_io)
continue;
if (!tot_xmt && !tot_cmpl && !tot_rcv) {
/* Print HDWQ string only the first time */
scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i);
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
}
tot_xmt += c_stat->xmt_io;
tot_cmpl += c_stat->cmpl_io;
if (phba->nvmet_support)
tot_rcv += c_stat->rcv_io;
scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j);
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
if (phba->nvmet_support) {
scnprintf(tmp, sizeof(tmp),
"XMT 0x%x CMPL 0x%x RCV 0x%x |",
c_stat->xmt_io, c_stat->cmpl_io,
c_stat->rcv_io);
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
} else {
scnprintf(tmp, sizeof(tmp),
"XMT 0x%x CMPL 0x%x |",
c_stat->xmt_io, c_stat->cmpl_io);
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
}
}
/* Check if nothing to display */
if (!tot_xmt && !tot_cmpl && !tot_rcv)
continue;
scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: ");
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
if (phba->nvmet_support) {
scnprintf(tmp, sizeof(tmp),
"XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n",
tot_xmt, tot_cmpl, tot_rcv);
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
} else {
scnprintf(tmp, sizeof(tmp),
"XMT 0x%x CMPL 0x%x]\n\n",
tot_xmt, tot_cmpl);
if (strlcat(buf, tmp, size) >= size)
goto buffer_done;
}
}
buffer_done:
len = strnlen(buf, size);
return len;
}
#endif
/**
* lpfc_debugfs_disc_trc - Store discovery trace log
* @vport: The vport to associate this trace string with for retrieval.
* @mask: Log entry classification.
* @fmt: Format string to be displayed when dumping the log.
* @data1: 1st data parameter to be applied to @fmt.
* @data2: 2nd data parameter to be applied to @fmt.
* @data3: 3rd data parameter to be applied to @fmt.
*
* Description:
* This routine is used by the driver code to add a debugfs log entry to the
* discovery trace buffer associated with @vport. Only entries with a @mask that
* match the current debugfs discovery mask will be saved. Entries that do not
* match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
* printf when displaying the log.
**/
inline void
lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
uint32_t data1, uint32_t data2, uint32_t data3)
{
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_debugfs_trc *dtp;
int index;
if (!(lpfc_debugfs_mask_disc_trc & mask))
return;
if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
!vport || !vport->disc_trc)
return;
index = atomic_inc_return(&vport->disc_trc_cnt) &
(lpfc_debugfs_max_disc_trc - 1);
dtp = vport->disc_trc + index;
dtp->fmt = fmt;
dtp->data1 = data1;
dtp->data2 = data2;
dtp->data3 = data3;
dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
dtp->jif = jiffies;
#endif
return;
}
/**
* lpfc_debugfs_slow_ring_trc - Store slow ring trace log
* @phba: The phba to associate this trace string with for retrieval.
* @fmt: Format string to be displayed when dumping the log.
* @data1: 1st data parameter to be applied to @fmt.
* @data2: 2nd data parameter to be applied to @fmt.
* @data3: 3rd data parameter to be applied to @fmt.
*
* Description:
* This routine is used by the driver code to add a debugfs log entry to the
* discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
* @data3 are used like printf when displaying the log.
**/
inline void
lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
uint32_t data1, uint32_t data2, uint32_t data3)
{
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_debugfs_trc *dtp;
int index;
if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
!phba || !phba->slow_ring_trc)
return;
index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
(lpfc_debugfs_max_slow_ring_trc - 1);
dtp = phba->slow_ring_trc + index;
dtp->fmt = fmt;
dtp->data1 = data1;
dtp->data2 = data2;
dtp->data3 = data3;
dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
dtp->jif = jiffies;
#endif
return;
}
/**
* lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log
* @phba: The phba to associate this trace string with for retrieval.
* @fmt: Format string to be displayed when dumping the log.
* @data1: 1st data parameter to be applied to @fmt.
* @data2: 2nd data parameter to be applied to @fmt.
* @data3: 3rd data parameter to be applied to @fmt.
*
* Description:
* This routine is used by the driver code to add a debugfs log entry to the
* nvme trace buffer associated with @phba. @fmt, @data1, @data2, and
* @data3 are used like printf when displaying the log.
**/
inline void
lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt,
uint16_t data1, uint16_t data2, uint32_t data3)
{
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_debugfs_nvmeio_trc *dtp;
int index;
if (!phba->nvmeio_trc_on || !phba->nvmeio_trc)
return;
index = atomic_inc_return(&phba->nvmeio_trc_cnt) &
(phba->nvmeio_trc_size - 1);
dtp = phba->nvmeio_trc + index;
dtp->fmt = fmt;
dtp->data1 = data1;
dtp->data2 = data2;
dtp->data3 = data3;
#endif
}
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/**
* lpfc_debugfs_disc_trc_open - Open the discovery trace log
* @inode: The inode pointer that contains a vport pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the vport from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this vport, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
{
struct lpfc_vport *vport = inode->i_private;
struct lpfc_debug *debug;
int size;
int rc = -ENOMEM;
if (!lpfc_debugfs_max_disc_trc) {
rc = -ENOSPC;
goto out;
}
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
size = PAGE_ALIGN(size);
debug->buffer = kmalloc(size, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
file->private_data = debug;
rc = 0;
out:
return rc;
}
/**
* lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
* @inode: The inode pointer that contains a vport pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the vport from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this vport, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
int size;
int rc = -ENOMEM;
if (!lpfc_debugfs_max_slow_ring_trc) {
rc = -ENOSPC;
goto out;
}
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
size = PAGE_ALIGN(size);
debug->buffer = kmalloc(size, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
file->private_data = debug;
rc = 0;
out:
return rc;
}
/**
* lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
* @inode: The inode pointer that contains a vport pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the vport from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this vport, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
LPFC_HBQINFO_SIZE);
file->private_data = debug;
rc = 0;
out:
return rc;
}
/**
* lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer
* @inode: The inode pointer that contains a hba pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the hba from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this hba, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_multixripools_data(
phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE);
debug->i_private = inode->i_private;
file->private_data = debug;
rc = 0;
out:
return rc;
}
#ifdef LPFC_HDWQ_LOCK_STAT
/**
* lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer
* @inode: The inode pointer that contains a vport pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the vport from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this vport, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer,
LPFC_HBQINFO_SIZE);
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
struct lpfc_sli4_hdw_queue *qp;
char mybuf[64];
char *pbuf;
int i;
size_t bsize;
memset(mybuf, 0, sizeof(mybuf));
bsize = min(nbytes, (sizeof(mybuf) - 1));
if (copy_from_user(mybuf, buf, bsize))
return -EFAULT;
pbuf = &mybuf[0];
if ((strncmp(pbuf, "reset", strlen("reset")) == 0) ||
(strncmp(pbuf, "zero", strlen("zero")) == 0)) {
for (i = 0; i < phba->cfg_hdw_queue; i++) {
qp = &phba->sli4_hba.hdwq[i];
qp->lock_conflict.alloc_xri_get = 0;
qp->lock_conflict.alloc_xri_put = 0;
qp->lock_conflict.free_xri = 0;
qp->lock_conflict.wq_access = 0;
qp->lock_conflict.alloc_pvt_pool = 0;
qp->lock_conflict.mv_from_pvt_pool = 0;
qp->lock_conflict.mv_to_pub_pool = 0;
qp->lock_conflict.mv_to_pvt_pool = 0;
qp->lock_conflict.free_pvt_pool = 0;
qp->lock_conflict.free_pub_pool = 0;
qp->lock_conflict.wq_access = 0;
}
}
return bsize;
}
#endif
static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba,
char *buffer, int size)
{
int copied = 0;
struct lpfc_dmabuf *dmabuf, *next;
memset(buffer, 0, size);
spin_lock_irq(&phba->hbalock);
if (phba->ras_fwlog.state != ACTIVE) {
spin_unlock_irq(&phba->hbalock);
return -EINVAL;
}
spin_unlock_irq(&phba->hbalock);
list_for_each_entry_safe(dmabuf, next,
&phba->ras_fwlog.fwlog_buff_list, list) {
/* Check if copying will go over size and a '\0' char */
if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) {
memcpy(buffer + copied, dmabuf->virt,
size - copied - 1);
copied += size - copied - 1;
break;
}
memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE);
copied += LPFC_RAS_MAX_ENTRY_SIZE;
}
return copied;
}
static int
lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file)
{
struct lpfc_debug *debug = file->private_data;
vfree(debug->buffer);
kfree(debug);
return 0;
}
/**
* lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer
* @inode: The inode pointer that contains a vport pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the vport from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this vport, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
int size;
int rc = -ENOMEM;
spin_lock_irq(&phba->hbalock);
if (phba->ras_fwlog.state != ACTIVE) {
spin_unlock_irq(&phba->hbalock);
rc = -EINVAL;
goto out;
}
spin_unlock_irq(&phba->hbalock);
if (check_mul_overflow(LPFC_RAS_MIN_BUFF_POST_SIZE,
phba->cfg_ras_fwlog_buffsize, &size))
goto out;
debug = kzalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
debug->buffer = vmalloc(size);
if (!debug->buffer)
goto free_debug;
debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size);
if (debug->len < 0) {
rc = -EINVAL;
goto free_buffer;
}
file->private_data = debug;
return 0;
free_buffer:
vfree(debug->buffer);
free_debug:
kfree(debug);
out:
return rc;
}
/**
* lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
* @inode: The inode pointer that contains a vport pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the vport from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this vport, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
LPFC_DUMPHBASLIM_SIZE);
file->private_data = debug;
rc = 0;
out:
return rc;
}
/**
* lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
* @inode: The inode pointer that contains a vport pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the vport from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this vport, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
LPFC_DUMPHOSTSLIM_SIZE);
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct dentry *dent = file->f_path.dentry;
struct lpfc_hba *phba = file->private_data;
char cbuf[32];
uint64_t tmp = 0;
int cnt = 0;
if (dent == phba->debug_writeGuard)
cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
else if (dent == phba->debug_writeApp)
cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
else if (dent == phba->debug_writeRef)
cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
else if (dent == phba->debug_readGuard)
cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
else if (dent == phba->debug_readApp)
cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
else if (dent == phba->debug_readRef)
cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
else if (dent == phba->debug_InjErrNPortID)
cnt = scnprintf(cbuf, 32, "0x%06x\n",
phba->lpfc_injerr_nportid);
else if (dent == phba->debug_InjErrWWPN) {
memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
tmp = cpu_to_be64(tmp);
cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp);
} else if (dent == phba->debug_InjErrLBA) {
if (phba->lpfc_injerr_lba == (sector_t)(-1))
cnt = scnprintf(cbuf, 32, "off\n");
else
cnt = scnprintf(cbuf, 32, "0x%llx\n",
(uint64_t) phba->lpfc_injerr_lba);
} else
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0547 Unknown debugfs error injection entry\n");
return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
}
static ssize_t
lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct dentry *dent = file->f_path.dentry;
struct lpfc_hba *phba = file->private_data;
char dstbuf[33];
uint64_t tmp = 0;
int size;
memset(dstbuf, 0, 33);
size = (nbytes < 32) ? nbytes : 32;
if (copy_from_user(dstbuf, buf, size))
return -EFAULT;
if (dent == phba->debug_InjErrLBA) {
if ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') &&
(dstbuf[2] == 'f'))
tmp = (uint64_t)(-1);
}
if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp)))
return -EINVAL;
if (dent == phba->debug_writeGuard)
phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
else if (dent == phba->debug_writeApp)
phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
else if (dent == phba->debug_writeRef)
phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
else if (dent == phba->debug_readGuard)
phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;
else if (dent == phba->debug_readApp)
phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
else if (dent == phba->debug_readRef)
phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
else if (dent == phba->debug_InjErrLBA)
phba->lpfc_injerr_lba = (sector_t)tmp;
else if (dent == phba->debug_InjErrNPortID)
phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID);
else if (dent == phba->debug_InjErrWWPN) {
tmp = cpu_to_be64(tmp);
memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name));
} else
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0548 Unknown debugfs error injection entry\n");
return nbytes;
}
static int
lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
{
return 0;
}
/**
* lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
* @inode: The inode pointer that contains a vport pointer.
* @file: The file pointer to attach the log output.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It gets
* the vport from the i_private field in @inode, allocates the necessary buffer
* for the log, fills the buffer from the in-memory log for this vport, and then
* returns a pointer to that log in the private_data field in @file.
*
* Returns:
* This function returns zero if successful. On error it will return a negative
* error value.
**/
static int
lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
{
struct lpfc_vport *vport = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
LPFC_NODELIST_SIZE);
file->private_data = debug;
rc = 0;
out:
return rc;
}
/**
* lpfc_debugfs_lseek - Seek through a debugfs file
* @file: The file pointer to seek through.
* @off: The offset to seek to or the amount to seek by.
* @whence: Indicates how to seek.
*
* Description:
* This routine is the entry point for the debugfs lseek file operation. The
* @whence parameter indicates whether @off is the offset to directly seek to,
* or if it is a value to seek forward or reverse by. This function figures out
* what the new offset of the debugfs file will be and assigns that value to the
* f_pos field of @file.
*
* Returns:
* This function returns the new offset if successful and returns a negative
* error if unable to process the seek.
**/
static loff_t
lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
{
struct lpfc_debug *debug = file->private_data;
return fixed_size_llseek(file, off, whence, debug->len);
}
/**
* lpfc_debugfs_read - Read a debugfs file
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from from the buffer indicated in the private_data
* field of @file. It will start reading at @ppos and copy up to @nbytes of
* data to @buf.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_debugfs_read(struct file *file, char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
debug->len);
}
/**
* lpfc_debugfs_release - Release the buffer used to store debugfs file data
* @inode: The inode pointer that contains a vport pointer. (unused)
* @file: The file pointer that contains the buffer to release.
*
* Description:
* This routine frees the buffer that was allocated when the debugfs file was
* opened.
*
* Returns:
* This function returns zero.
**/
static int
lpfc_debugfs_release(struct inode *inode, struct file *file)
{
struct lpfc_debug *debug = file->private_data;
kfree(debug->buffer);
kfree(debug);
return 0;
}
/**
* lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics
* @file: The file pointer to read from.
* @buf: The buffer to copy the user data from.
* @nbytes: The number of bytes to get.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine clears multi-XRI pools statistics when buf contains "clear".
*
* Return Value:
* It returns the @nbytges passing in from debugfs user space when successful.
* In case of error conditions, it returns proper error code back to the user
* space.
**/
static ssize_t
lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
char mybuf[64];
char *pbuf;
u32 i;
u32 hwq_count;
struct lpfc_sli4_hdw_queue *qp;
struct lpfc_multixri_pool *multixri_pool;
if (nbytes > sizeof(mybuf) - 1)
nbytes = sizeof(mybuf) - 1;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
return -EFAULT;
pbuf = &mybuf[0];
if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) {
hwq_count = phba->cfg_hdw_queue;
for (i = 0; i < hwq_count; i++) {
qp = &phba->sli4_hba.hdwq[i];
multixri_pool = qp->p_multixri_pool;
if (!multixri_pool)
continue;
qp->empty_io_bufs = 0;
multixri_pool->pbl_empty_count = 0;
#ifdef LPFC_MXP_STAT
multixri_pool->above_limit_count = 0;
multixri_pool->below_limit_count = 0;
multixri_pool->stat_max_hwm = 0;
multixri_pool->local_pbl_hit_count = 0;
multixri_pool->other_pbl_hit_count = 0;
multixri_pool->stat_pbl_count = 0;
multixri_pool->stat_pvt_count = 0;
multixri_pool->stat_busy_count = 0;
multixri_pool->stat_snapshot_taken = 0;
#endif
}
return strlen(pbuf);
}
return -EINVAL;
}
static int
lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file)
{
struct lpfc_vport *vport = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer,
LPFC_NVMESTAT_SIZE);
debug->i_private = inode->i_private;
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
struct lpfc_hba *phba = vport->phba;
struct lpfc_nvmet_tgtport *tgtp;
char mybuf[64];
char *pbuf;
if (!phba->targetport)
return -ENXIO;
if (nbytes > sizeof(mybuf) - 1)
nbytes = sizeof(mybuf) - 1;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
return -EFAULT;
pbuf = &mybuf[0];
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
if ((strncmp(pbuf, "reset", strlen("reset")) == 0) ||
(strncmp(pbuf, "zero", strlen("zero")) == 0)) {
atomic_set(&tgtp->rcv_ls_req_in, 0);
atomic_set(&tgtp->rcv_ls_req_out, 0);
atomic_set(&tgtp->rcv_ls_req_drop, 0);
atomic_set(&tgtp->xmt_ls_abort, 0);
atomic_set(&tgtp->xmt_ls_abort_cmpl, 0);
atomic_set(&tgtp->xmt_ls_rsp, 0);
atomic_set(&tgtp->xmt_ls_drop, 0);
atomic_set(&tgtp->xmt_ls_rsp_error, 0);
atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
atomic_set(&tgtp->xmt_fcp_drop, 0);
atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
atomic_set(&tgtp->xmt_fcp_read, 0);
atomic_set(&tgtp->xmt_fcp_write, 0);
atomic_set(&tgtp->xmt_fcp_rsp, 0);
atomic_set(&tgtp->xmt_fcp_release, 0);
atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
atomic_set(&tgtp->xmt_fcp_abort, 0);
atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
atomic_set(&tgtp->xmt_abort_sol, 0);
atomic_set(&tgtp->xmt_abort_unsol, 0);
atomic_set(&tgtp->xmt_abort_rsp, 0);
atomic_set(&tgtp->xmt_abort_rsp_error, 0);
}
return nbytes;
}
static int
lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file)
{
struct lpfc_vport *vport = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer,
LPFC_SCSISTAT_SIZE);
debug->i_private = inode->i_private;
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
struct lpfc_hba *phba = vport->phba;
char mybuf[6] = {0};
int i;
if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ?
(sizeof(mybuf) - 1) : nbytes))
return -EFAULT;
if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) ||
(strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) {
for (i = 0; i < phba->cfg_hdw_queue; i++) {
memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0,
sizeof(phba->sli4_hba.hdwq[i].scsi_cstat));
}
}
return nbytes;
}
static int
lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file)
{
struct lpfc_vport *vport = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer,
LPFC_IOKTIME_SIZE);
debug->i_private = inode->i_private;
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
struct lpfc_hba *phba = vport->phba;
char mybuf[64];
char *pbuf;
if (nbytes > sizeof(mybuf) - 1)
nbytes = sizeof(mybuf) - 1;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
return -EFAULT;
pbuf = &mybuf[0];
if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
phba->ktime_data_samples = 0;
phba->ktime_status_samples = 0;
phba->ktime_seg1_total = 0;
phba->ktime_seg1_max = 0;
phba->ktime_seg1_min = 0xffffffff;
phba->ktime_seg2_total = 0;
phba->ktime_seg2_max = 0;
phba->ktime_seg2_min = 0xffffffff;
phba->ktime_seg3_total = 0;
phba->ktime_seg3_max = 0;
phba->ktime_seg3_min = 0xffffffff;
phba->ktime_seg4_total = 0;
phba->ktime_seg4_max = 0;
phba->ktime_seg4_min = 0xffffffff;
phba->ktime_seg5_total = 0;
phba->ktime_seg5_max = 0;
phba->ktime_seg5_min = 0xffffffff;
phba->ktime_seg6_total = 0;
phba->ktime_seg6_max = 0;
phba->ktime_seg6_min = 0xffffffff;
phba->ktime_seg7_total = 0;
phba->ktime_seg7_max = 0;
phba->ktime_seg7_min = 0xffffffff;
phba->ktime_seg8_total = 0;
phba->ktime_seg8_max = 0;
phba->ktime_seg8_min = 0xffffffff;
phba->ktime_seg9_total = 0;
phba->ktime_seg9_max = 0;
phba->ktime_seg9_min = 0xffffffff;
phba->ktime_seg10_total = 0;
phba->ktime_seg10_max = 0;
phba->ktime_seg10_min = 0xffffffff;
phba->ktime_on = 1;
return strlen(pbuf);
} else if ((strncmp(pbuf, "off",
sizeof("off") - 1) == 0)) {
phba->ktime_on = 0;
return strlen(pbuf);
} else if ((strncmp(pbuf, "zero",
sizeof("zero") - 1) == 0)) {
phba->ktime_data_samples = 0;
phba->ktime_status_samples = 0;
phba->ktime_seg1_total = 0;
phba->ktime_seg1_max = 0;
phba->ktime_seg1_min = 0xffffffff;
phba->ktime_seg2_total = 0;
phba->ktime_seg2_max = 0;
phba->ktime_seg2_min = 0xffffffff;
phba->ktime_seg3_total = 0;
phba->ktime_seg3_max = 0;
phba->ktime_seg3_min = 0xffffffff;
phba->ktime_seg4_total = 0;
phba->ktime_seg4_max = 0;
phba->ktime_seg4_min = 0xffffffff;
phba->ktime_seg5_total = 0;
phba->ktime_seg5_max = 0;
phba->ktime_seg5_min = 0xffffffff;
phba->ktime_seg6_total = 0;
phba->ktime_seg6_max = 0;
phba->ktime_seg6_min = 0xffffffff;
phba->ktime_seg7_total = 0;
phba->ktime_seg7_max = 0;
phba->ktime_seg7_min = 0xffffffff;
phba->ktime_seg8_total = 0;
phba->ktime_seg8_max = 0;
phba->ktime_seg8_min = 0xffffffff;
phba->ktime_seg9_total = 0;
phba->ktime_seg9_max = 0;
phba->ktime_seg9_min = 0xffffffff;
phba->ktime_seg10_total = 0;
phba->ktime_seg10_max = 0;
phba->ktime_seg10_min = 0xffffffff;
return strlen(pbuf);
}
return -EINVAL;
}
static int
lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file)
{
struct lpfc_hba *phba = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer,
LPFC_NVMEIO_TRC_SIZE);
debug->i_private = inode->i_private;
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
int i;
unsigned long sz;
char mybuf[64];
char *pbuf;
if (nbytes > sizeof(mybuf) - 1)
nbytes = sizeof(mybuf) - 1;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
return -EFAULT;
pbuf = &mybuf[0];
if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0570 nvmeio_trc_off\n");
phba->nvmeio_trc_output_idx = 0;
phba->nvmeio_trc_on = 0;
return strlen(pbuf);
} else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0571 nvmeio_trc_on\n");
phba->nvmeio_trc_output_idx = 0;
phba->nvmeio_trc_on = 1;
return strlen(pbuf);
}
/* We must be off to allocate the trace buffer */
if (phba->nvmeio_trc_on != 0)
return -EINVAL;
/* If not on or off, the parameter is the trace buffer size */
i = kstrtoul(pbuf, 0, &sz);
if (i)
return -EINVAL;
phba->nvmeio_trc_size = (uint32_t)sz;
/* It must be a power of 2 - round down */
i = 0;
while (sz > 1) {
sz = sz >> 1;
i++;
}
sz = (1 << i);
if (phba->nvmeio_trc_size != sz)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0572 nvmeio_trc_size changed to %ld\n",
sz);
phba->nvmeio_trc_size = (uint32_t)sz;
/* If one previously exists, free it */
kfree(phba->nvmeio_trc);
/* Allocate new trace buffer and initialize */
phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) *
sz), GFP_KERNEL);
if (!phba->nvmeio_trc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0573 Cannot create debugfs "
"nvmeio_trc buffer\n");
return -ENOMEM;
}
atomic_set(&phba->nvmeio_trc_cnt, 0);
phba->nvmeio_trc_on = 0;
phba->nvmeio_trc_output_idx = 0;
return strlen(pbuf);
}
static int
lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file)
{
struct lpfc_vport *vport = inode->i_private;
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
/* Round to page boundary */
debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer,
LPFC_SCSISTAT_SIZE);
debug->i_private = inode->i_private;
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
struct lpfc_hba *phba = vport->phba;
struct lpfc_hdwq_stat *c_stat;
char mybuf[64];
char *pbuf;
int i;
if (nbytes > sizeof(mybuf) - 1)
nbytes = sizeof(mybuf) - 1;
memset(mybuf, 0, sizeof(mybuf));
if (copy_from_user(mybuf, buf, nbytes))
return -EFAULT;
pbuf = &mybuf[0];
if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
if (phba->nvmet_support)
phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO;
else
phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO |
LPFC_CHECK_SCSI_IO);
return strlen(pbuf);
} else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) {
if (phba->nvmet_support)
phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO;
else
phba->hdwqstat_on |= LPFC_CHECK_NVME_IO;
return strlen(pbuf);
} else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) {
if (!phba->nvmet_support)
phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO;
return strlen(pbuf);
} else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) {
phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO |
LPFC_CHECK_NVMET_IO);
return strlen(pbuf);
} else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) {
phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO;
return strlen(pbuf);
} else if ((strncmp(pbuf, "off",
sizeof("off") - 1) == 0)) {
phba->hdwqstat_on = LPFC_CHECK_OFF;
return strlen(pbuf);
} else if ((strncmp(pbuf, "zero",
sizeof("zero") - 1) == 0)) {
for_each_present_cpu(i) {
c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i);
c_stat->xmt_io = 0;
c_stat->cmpl_io = 0;
c_stat->rcv_io = 0;
}
return strlen(pbuf);
}
return -EINVAL;
}
/*
* ---------------------------------
* iDiag debugfs file access methods
* ---------------------------------
*
* All access methods are through the proper SLI4 PCI function's debugfs
* iDiag directory:
*
* /sys/kernel/debug/lpfc/fn<#>/iDiag
*/
/**
* lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
* @buf: The pointer to the user space buffer.
* @nbytes: The number of bytes in the user space buffer.
* @idiag_cmd: pointer to the idiag command struct.
*
* This routine reads data from debugfs user space buffer and parses the
* buffer for getting the idiag command and arguments. The while space in
* between the set of data is used as the parsing separator.
*
* This routine returns 0 when successful, it returns proper error code
* back to the user space in error conditions.
*/
static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
struct lpfc_idiag_cmd *idiag_cmd)
{
char mybuf[64];
char *pbuf, *step_str;
int i;
size_t bsize;
memset(mybuf, 0, sizeof(mybuf));
memset(idiag_cmd, 0, sizeof(*idiag_cmd));
bsize = min(nbytes, (sizeof(mybuf)-1));
if (copy_from_user(mybuf, buf, bsize))
return -EFAULT;
pbuf = &mybuf[0];
step_str = strsep(&pbuf, "\t ");
/* The opcode must present */
if (!step_str)
return -EINVAL;
idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
if (idiag_cmd->opcode == 0)
return -EINVAL;
for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
step_str = strsep(&pbuf, "\t ");
if (!step_str)
return i;
idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
}
return i;
}
/**
* lpfc_idiag_open - idiag open debugfs
* @inode: The inode pointer that contains a pointer to phba.
* @file: The file pointer to attach the file operation.
*
* Description:
* This routine is the entry point for the debugfs open file operation. It
* gets the reference to phba from the i_private field in @inode, it then
* allocates buffer for the file operation, performs the necessary PCI config
* space read into the allocated buffer according to the idiag user command
* setup, and then returns a pointer to buffer in the private_data field in
* @file.
*
* Returns:
* This function returns zero if successful. On error it will return an
* negative error value.
**/
static int
lpfc_idiag_open(struct inode *inode, struct file *file)
{
struct lpfc_debug *debug;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
return -ENOMEM;
debug->i_private = inode->i_private;
debug->buffer = NULL;
file->private_data = debug;
return 0;
}
/**
* lpfc_idiag_release - Release idiag access file operation
* @inode: The inode pointer that contains a vport pointer. (unused)
* @file: The file pointer that contains the buffer to release.
*
* Description:
* This routine is the generic release routine for the idiag access file
* operation, it frees the buffer that was allocated when the debugfs file
* was opened.
*
* Returns:
* This function returns zero.
**/
static int
lpfc_idiag_release(struct inode *inode, struct file *file)
{
struct lpfc_debug *debug = file->private_data;
/* Free the buffers to the file operation */
kfree(debug->buffer);
kfree(debug);
return 0;
}
/**
* lpfc_idiag_cmd_release - Release idiag cmd access file operation
* @inode: The inode pointer that contains a vport pointer. (unused)
* @file: The file pointer that contains the buffer to release.
*
* Description:
* This routine frees the buffer that was allocated when the debugfs file
* was opened. It also reset the fields in the idiag command struct in the
* case of command for write operation.
*
* Returns:
* This function returns zero.
**/
static int
lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
{
struct lpfc_debug *debug = file->private_data;
if (debug->op == LPFC_IDIAG_OP_WR) {
switch (idiag.cmd.opcode) {
case LPFC_IDIAG_CMD_PCICFG_WR:
case LPFC_IDIAG_CMD_PCICFG_ST:
case LPFC_IDIAG_CMD_PCICFG_CL:
case LPFC_IDIAG_CMD_QUEACC_WR:
case LPFC_IDIAG_CMD_QUEACC_ST:
case LPFC_IDIAG_CMD_QUEACC_CL:
memset(&idiag, 0, sizeof(idiag));
break;
default:
break;
}
}
/* Free the buffers to the file operation */
kfree(debug->buffer);
kfree(debug);
return 0;
}
/**
* lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from the @phba pci config space according to the
* idiag command, and copies to user @buf. Depending on the PCI config space
* read command setup, it does either a single register read of a byte
* (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
* registers from the 4K extended PCI config space.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
int where, count;
char *pbuffer;
struct pci_dev *pdev;
uint32_t u32val;
uint16_t u16val;
uint8_t u8val;
pdev = phba->pcidev;
if (!pdev)
return 0;
/* This is a user read operation */
debug->op = LPFC_IDIAG_OP_RD;
if (!debug->buffer)
debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
if (!debug->buffer)
return 0;
pbuffer = debug->buffer;
if (*ppos)
return 0;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
} else
return 0;
/* Read single PCI config space register */
switch (count) {
case SIZE_U8: /* byte (8 bits) */
pci_read_config_byte(pdev, where, &u8val);
len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
"%03x: %02x\n", where, u8val);
break;
case SIZE_U16: /* word (16 bits) */
pci_read_config_word(pdev, where, &u16val);
len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
"%03x: %04x\n", where, u16val);
break;
case SIZE_U32: /* double word (32 bits) */
pci_read_config_dword(pdev, where, &u32val);
len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
"%03x: %08x\n", where, u32val);
break;
case LPFC_PCI_CFG_BROWSE: /* browse all */
goto pcicfg_browse;
default:
/* illegal count */
len = 0;
break;
}
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
pcicfg_browse:
/* Browse all PCI config space registers */
offset_label = idiag.offset.last_rd;
offset = offset_label;
/* Read PCI config space */
len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
"%03x: ", offset_label);
while (index > 0) {
pci_read_config_dword(pdev, offset, &u32val);
len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
"%08x ", u32val);
offset += sizeof(uint32_t);
if (offset >= LPFC_PCI_CFG_SIZE) {
len += scnprintf(pbuffer+len,
LPFC_PCI_CFG_SIZE-len, "\n");
break;
}
index -= sizeof(uint32_t);
if (!index)
len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
"\n");
else if (!(index % (8 * sizeof(uint32_t)))) {
offset_label += (8 * sizeof(uint32_t));
len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
"\n%03x: ", offset_label);
}
}
/* Set up the offset for next portion of pci cfg read */
if (index == 0) {
idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
idiag.offset.last_rd = 0;
} else
idiag.offset.last_rd = 0;
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
}
/**
* lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
* @file: The file pointer to read from.
* @buf: The buffer to copy the user data from.
* @nbytes: The number of bytes to get.
* @ppos: The position in the file to start reading from.
*
* This routine get the debugfs idiag command struct from user space and
* then perform the syntax check for PCI config space read or write command
* accordingly. In the case of PCI config space read command, it sets up
* the command in the idiag command struct for the debugfs read operation.
* In the case of PCI config space write operation, it executes the write
* operation into the PCI config space accordingly.
*
* It returns the @nbytges passing in from debugfs user space when successful.
* In case of error conditions, it returns proper error code back to the user
* space.
*/
static ssize_t
lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
uint32_t where, value, count;
uint32_t u32val;
uint16_t u16val;
uint8_t u8val;
struct pci_dev *pdev;
int rc;
pdev = phba->pcidev;
if (!pdev)
return -EFAULT;
/* This is a user write operation */
debug->op = LPFC_IDIAG_OP_WR;
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
if (rc < 0)
return rc;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
/* Sanity check on PCI config read command line arguments */
if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
goto error_out;
/* Read command from PCI config space, set up command fields */
where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
if (count == LPFC_PCI_CFG_BROWSE) {
if (where % sizeof(uint32_t))
goto error_out;
/* Starting offset to browse */
idiag.offset.last_rd = where;
} else if ((count != sizeof(uint8_t)) &&
(count != sizeof(uint16_t)) &&
(count != sizeof(uint32_t)))
goto error_out;
if (count == sizeof(uint8_t)) {
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
goto error_out;
if (where % sizeof(uint8_t))
goto error_out;
}
if (count == sizeof(uint16_t)) {
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
goto error_out;
if (where % sizeof(uint16_t))
goto error_out;
}
if (count == sizeof(uint32_t)) {
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
goto error_out;
if (where % sizeof(uint32_t))
goto error_out;
}
} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
/* Sanity check on PCI config write command line arguments */
if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
goto error_out;
/* Write command to PCI config space, read-modify-write */
where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
/* Sanity checks */
if ((count != sizeof(uint8_t)) &&
(count != sizeof(uint16_t)) &&
(count != sizeof(uint32_t)))
goto error_out;
if (count == sizeof(uint8_t)) {
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
goto error_out;
if (where % sizeof(uint8_t))
goto error_out;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
pci_write_config_byte(pdev, where,
(uint8_t)value);
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
rc = pci_read_config_byte(pdev, where, &u8val);
if (!rc) {
u8val |= (uint8_t)value;
pci_write_config_byte(pdev, where,
u8val);
}
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
rc = pci_read_config_byte(pdev, where, &u8val);
if (!rc) {
u8val &= (uint8_t)(~value);
pci_write_config_byte(pdev, where,
u8val);
}
}
}
if (count == sizeof(uint16_t)) {
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
goto error_out;
if (where % sizeof(uint16_t))
goto error_out;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
pci_write_config_word(pdev, where,
(uint16_t)value);
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
rc = pci_read_config_word(pdev, where, &u16val);
if (!rc) {
u16val |= (uint16_t)value;
pci_write_config_word(pdev, where,
u16val);
}
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
rc = pci_read_config_word(pdev, where, &u16val);
if (!rc) {
u16val &= (uint16_t)(~value);
pci_write_config_word(pdev, where,
u16val);
}
}
}
if (count == sizeof(uint32_t)) {
if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
goto error_out;
if (where % sizeof(uint32_t))
goto error_out;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
pci_write_config_dword(pdev, where, value);
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
rc = pci_read_config_dword(pdev, where,
&u32val);
if (!rc) {
u32val |= value;
pci_write_config_dword(pdev, where,
u32val);
}
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
rc = pci_read_config_dword(pdev, where,
&u32val);
if (!rc) {
u32val &= ~value;
pci_write_config_dword(pdev, where,
u32val);
}
}
}
} else
/* All other opecodes are illegal for now */
goto error_out;
return nbytes;
error_out:
memset(&idiag, 0, sizeof(idiag));
return -EINVAL;
}
/**
* lpfc_idiag_baracc_read - idiag debugfs pci bar access read
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from the @phba pci bar memory mapped space
* according to the idiag command, and copies to user @buf.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
int offset_label, offset, offset_run, len = 0, index;
int bar_num, acc_range, bar_size;
char *pbuffer;
void __iomem *mem_mapped_bar;
uint32_t if_type;
struct pci_dev *pdev;
uint32_t u32val;
pdev = phba->pcidev;
if (!pdev)
return 0;
/* This is a user read operation */
debug->op = LPFC_IDIAG_OP_RD;
if (!debug->buffer)
debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
if (!debug->buffer)
return 0;
pbuffer = debug->buffer;
if (*ppos)
return 0;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
} else
return 0;
if (acc_range == 0)
return 0;
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
if (bar_num == IDIAG_BARACC_BAR_0)
mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
else if (bar_num == IDIAG_BARACC_BAR_1)
mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
else if (bar_num == IDIAG_BARACC_BAR_2)
mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
else
return 0;
} else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
if (bar_num == IDIAG_BARACC_BAR_0)
mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
else
return 0;
} else
return 0;
/* Read single PCI bar space register */
if (acc_range == SINGLE_WORD) {
offset_run = offset;
u32val = readl(mem_mapped_bar + offset_run);
len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
"%05x: %08x\n", offset_run, u32val);
} else
goto baracc_browse;
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
baracc_browse:
/* Browse all PCI bar space registers */
offset_label = idiag.offset.last_rd;
offset_run = offset_label;
/* Read PCI bar memory mapped space */
len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
"%05x: ", offset_label);
index = LPFC_PCI_BAR_RD_SIZE;
while (index > 0) {
u32val = readl(mem_mapped_bar + offset_run);
len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
"%08x ", u32val);
offset_run += sizeof(uint32_t);
if (acc_range == LPFC_PCI_BAR_BROWSE) {
if (offset_run >= bar_size) {
len += scnprintf(pbuffer+len,
LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
break;
}
} else {
if (offset_run >= offset +
(acc_range * sizeof(uint32_t))) {
len += scnprintf(pbuffer+len,
LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
break;
}
}
index -= sizeof(uint32_t);
if (!index)
len += scnprintf(pbuffer+len,
LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
else if (!(index % (8 * sizeof(uint32_t)))) {
offset_label += (8 * sizeof(uint32_t));
len += scnprintf(pbuffer+len,
LPFC_PCI_BAR_RD_BUF_SIZE-len,
"\n%05x: ", offset_label);
}
}
/* Set up the offset for next portion of pci bar read */
if (index == 0) {
idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
if (acc_range == LPFC_PCI_BAR_BROWSE) {
if (idiag.offset.last_rd >= bar_size)
idiag.offset.last_rd = 0;
} else {
if (offset_run >= offset +
(acc_range * sizeof(uint32_t)))
idiag.offset.last_rd = offset;
}
} else {
if (acc_range == LPFC_PCI_BAR_BROWSE)
idiag.offset.last_rd = 0;
else
idiag.offset.last_rd = offset;
}
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
}
/**
* lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
* @file: The file pointer to read from.
* @buf: The buffer to copy the user data from.
* @nbytes: The number of bytes to get.
* @ppos: The position in the file to start reading from.
*
* This routine get the debugfs idiag command struct from user space and
* then perform the syntax check for PCI bar memory mapped space read or
* write command accordingly. In the case of PCI bar memory mapped space
* read command, it sets up the command in the idiag command struct for
* the debugfs read operation. In the case of PCI bar memorpy mapped space
* write operation, it executes the write operation into the PCI bar memory
* mapped space accordingly.
*
* It returns the @nbytges passing in from debugfs user space when successful.
* In case of error conditions, it returns proper error code back to the user
* space.
*/
static ssize_t
lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
uint32_t bar_num, bar_size, offset, value, acc_range;
struct pci_dev *pdev;
void __iomem *mem_mapped_bar;
uint32_t if_type;
uint32_t u32val;
int rc;
pdev = phba->pcidev;
if (!pdev)
return -EFAULT;
/* This is a user write operation */
debug->op = LPFC_IDIAG_OP_WR;
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
if (rc < 0)
return rc;
if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
if ((bar_num != IDIAG_BARACC_BAR_0) &&
(bar_num != IDIAG_BARACC_BAR_1) &&
(bar_num != IDIAG_BARACC_BAR_2))
goto error_out;
} else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
if (bar_num != IDIAG_BARACC_BAR_0)
goto error_out;
} else
goto error_out;
if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
if (bar_num == IDIAG_BARACC_BAR_0) {
idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
LPFC_PCI_IF0_BAR0_SIZE;
mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
} else if (bar_num == IDIAG_BARACC_BAR_1) {
idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
LPFC_PCI_IF0_BAR1_SIZE;
mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
} else if (bar_num == IDIAG_BARACC_BAR_2) {
idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
LPFC_PCI_IF0_BAR2_SIZE;
mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
} else
goto error_out;
} else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
if (bar_num == IDIAG_BARACC_BAR_0) {
idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
LPFC_PCI_IF2_BAR0_SIZE;
mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
} else
goto error_out;
} else
goto error_out;
offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
if (offset % sizeof(uint32_t))
goto error_out;
bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
/* Sanity check on PCI config read command line arguments */
if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
goto error_out;
acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
if (acc_range == LPFC_PCI_BAR_BROWSE) {
if (offset > bar_size - sizeof(uint32_t))
goto error_out;
/* Starting offset to browse */
idiag.offset.last_rd = offset;
} else if (acc_range > SINGLE_WORD) {
if (offset + acc_range * sizeof(uint32_t) > bar_size)
goto error_out;
/* Starting offset to browse */
idiag.offset.last_rd = offset;
} else if (acc_range != SINGLE_WORD)
goto error_out;
} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
/* Sanity check on PCI bar write command line arguments */
if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
goto error_out;
/* Write command to PCI bar space, read-modify-write */
acc_range = SINGLE_WORD;
value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
writel(value, mem_mapped_bar + offset);
readl(mem_mapped_bar + offset);
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
u32val = readl(mem_mapped_bar + offset);
u32val |= value;
writel(u32val, mem_mapped_bar + offset);
readl(mem_mapped_bar + offset);
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
u32val = readl(mem_mapped_bar + offset);
u32val &= ~value;
writel(u32val, mem_mapped_bar + offset);
readl(mem_mapped_bar + offset);
}
} else
/* All other opecodes are illegal for now */
goto error_out;
return nbytes;
error_out:
memset(&idiag, 0, sizeof(idiag));
return -EINVAL;
}
static int
__lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype,
char *pbuffer, int len)
{
if (!qp)
return len;
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\t\t%s WQ info: ", wqtype);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n",
qp->assoc_qid, qp->q_cnt_1,
(unsigned long long)qp->q_cnt_4);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]",
qp->queue_id, qp->entry_count,
qp->entry_size, qp->host_index,
qp->hba_index, qp->notify_interval);
len += scnprintf(pbuffer + len,
LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
return len;
}
static int
lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer,
int *len, int max_cnt, int cq_id)
{
struct lpfc_queue *qp;
int qidx;
for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
qp = phba->sli4_hba.hdwq[qidx].io_wq;
if (qp->assoc_qid != cq_id)
continue;
*len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len);
if (*len >= max_cnt)
return 1;
}
return 0;
}
static int
__lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype,
char *pbuffer, int len)
{
if (!qp)
return len;
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\t%s CQ info: ", cqtype);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x "
"xabt:x%x wq:x%llx]\n",
qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
"HST-IDX[%04d], NTFI[%03d], PLMT[%03d]",
qp->queue_id, qp->entry_count,
qp->entry_size, qp->host_index,
qp->notify_interval, qp->max_proc_limit);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\n");
return len;
}
static int
__lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp,
char *rqtype, char *pbuffer, int len)
{
if (!qp || !datqp)
return len;
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\t\t%s RQ info: ", rqtype);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x "
"posted:x%x rcv:x%llx]\n",
qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n",
qp->queue_id, qp->entry_count, qp->entry_size,
qp->host_index, qp->hba_index, qp->notify_interval);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n",
datqp->queue_id, datqp->entry_count,
datqp->entry_size, datqp->host_index,
datqp->hba_index, datqp->notify_interval);
return len;
}
static int
lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer,
int *len, int max_cnt, int eqidx, int eq_id)
{
struct lpfc_queue *qp;
int rc;
qp = phba->sli4_hba.hdwq[eqidx].io_cq;
*len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len);
/* Reset max counter */
qp->CQ_max_cqe = 0;
if (*len >= max_cnt)
return 1;
rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len,
max_cnt, qp->queue_id);
if (rc)
return 1;
if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) {
/* NVMET CQset */
qp = phba->sli4_hba.nvmet_cqset[eqidx];
*len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len);
/* Reset max counter */
qp->CQ_max_cqe = 0;
if (*len >= max_cnt)
return 1;
/* RQ header */
qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx];
*len = __lpfc_idiag_print_rqpair(qp,
phba->sli4_hba.nvmet_mrq_data[eqidx],
"NVMET MRQ", pbuffer, *len);
if (*len >= max_cnt)
return 1;
}
return 0;
}
static int
__lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype,
char *pbuffer, int len)
{
if (!qp)
return len;
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\n%s EQ info: EQ-STAT[max:x%x noE:x%x "
"cqe_proc:x%x eqe_proc:x%llx eqd %d]\n",
eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3,
(unsigned long long)qp->q_cnt_4, qp->q_mode);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
"HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]",
qp->queue_id, qp->entry_count, qp->entry_size,
qp->host_index, qp->notify_interval,
qp->max_proc_limit, qp->chann);
len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
"\n");
return len;
}
/**
* lpfc_idiag_queinfo_read - idiag debugfs read queue information
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from the @phba SLI4 PCI function queue information,
* and copies to user @buf.
* This routine only returns 1 EQs worth of information. It remembers the last
* EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will
* retrieve all EQs allocated for the phba.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
char *pbuffer;
int max_cnt, rc, x, len = 0;
struct lpfc_queue *qp = NULL;
if (!debug->buffer)
debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
if (!debug->buffer)
return 0;
pbuffer = debug->buffer;
max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256;
if (*ppos)
return 0;
spin_lock_irq(&phba->hbalock);
/* Fast-path event queue */
if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) {
x = phba->lpfc_idiag_last_eq;
phba->lpfc_idiag_last_eq++;
if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue)
phba->lpfc_idiag_last_eq = 0;
len += scnprintf(pbuffer + len,
LPFC_QUE_INFO_GET_BUF_SIZE - len,
"HDWQ %d out of %d HBA HDWQs\n",
x, phba->cfg_hdw_queue);
/* Fast-path EQ */
qp = phba->sli4_hba.hdwq[x].hba_eq;
if (!qp)
goto out;
len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len);
/* Reset max counter */
qp->EQ_max_eqe = 0;
if (len >= max_cnt)
goto too_big;
/* will dump both fcp and nvme cqs/wqs for the eq */
rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len,
max_cnt, x, qp->queue_id);
if (rc)
goto too_big;
/* Only EQ 0 has slow path CQs configured */
if (x)
goto out;
/* Slow-path mailbox CQ */
qp = phba->sli4_hba.mbx_cq;
len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len);
if (len >= max_cnt)
goto too_big;
/* Slow-path MBOX MQ */
qp = phba->sli4_hba.mbx_wq;
len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len);
if (len >= max_cnt)
goto too_big;
/* Slow-path ELS response CQ */
qp = phba->sli4_hba.els_cq;
len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len);
/* Reset max counter */
if (qp)
qp->CQ_max_cqe = 0;
if (len >= max_cnt)
goto too_big;
/* Slow-path ELS WQ */
qp = phba->sli4_hba.els_wq;
len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len);
if (len >= max_cnt)
goto too_big;
qp = phba->sli4_hba.hdr_rq;
len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq,
"ELS RQpair", pbuffer, len);
if (len >= max_cnt)
goto too_big;
/* Slow-path NVME LS response CQ */
qp = phba->sli4_hba.nvmels_cq;
len = __lpfc_idiag_print_cq(qp, "NVME LS",
pbuffer, len);
/* Reset max counter */
if (qp)
qp->CQ_max_cqe = 0;
if (len >= max_cnt)
goto too_big;
/* Slow-path NVME LS WQ */
qp = phba->sli4_hba.nvmels_wq;
len = __lpfc_idiag_print_wq(qp, "NVME LS",
pbuffer, len);
if (len >= max_cnt)
goto too_big;
goto out;
}
spin_unlock_irq(&phba->hbalock);
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
too_big:
len += scnprintf(pbuffer + len,
LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n");
out:
spin_unlock_irq(&phba->hbalock);
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
}
/**
* lpfc_idiag_que_param_check - queue access command parameter sanity check
* @q: The pointer to queue structure.
* @index: The index into a queue entry.
* @count: The number of queue entries to access.
*
* Description:
* The routine performs sanity check on device queue access method commands.
*
* Returns:
* This function returns -EINVAL when fails the sanity check, otherwise, it
* returns 0.
**/
static int
lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
{
/* Only support single entry read or browsing */
if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
return -EINVAL;
if (index > q->entry_count - 1)
return -EINVAL;
return 0;
}
/**
* lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
* @pbuffer: The pointer to buffer to copy the read data into.
* @len: Length of the buffer.
* @pque: The pointer to the queue to be read.
* @index: The index into the queue entry.
*
* Description:
* This routine reads out a single entry from the given queue's index location
* and copies it into the buffer provided.
*
* Returns:
* This function returns 0 when it fails, otherwise, it returns the length of
* the data read into the buffer provided.
**/
static int
lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
uint32_t index)
{
int offset, esize;
uint32_t *pentry;
if (!pbuffer || !pque)
return 0;
esize = pque->entry_size;
len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
"QE-INDEX[%04d]:\n", index);
offset = 0;
pentry = lpfc_sli4_qe(pque, index);
while (esize > 0) {
len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
"%08x ", *pentry);
pentry++;
offset += sizeof(uint32_t);
esize -= sizeof(uint32_t);
if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
len += scnprintf(pbuffer+len,
LPFC_QUE_ACC_BUF_SIZE-len, "\n");
}
len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
return len;
}
/**
* lpfc_idiag_queacc_read - idiag debugfs read port queue
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from the @phba device queue memory according to the
* idiag command, and copies to user @buf. Depending on the queue dump read
* command setup, it does either a single queue entry read or browing through
* all entries of the queue.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
uint32_t last_index, index, count;
struct lpfc_queue *pque = NULL;
char *pbuffer;
int len = 0;
/* This is a user read operation */
debug->op = LPFC_IDIAG_OP_RD;
if (!debug->buffer)
debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
if (!debug->buffer)
return 0;
pbuffer = debug->buffer;
if (*ppos)
return 0;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
pque = (struct lpfc_queue *)idiag.ptr_private;
} else
return 0;
/* Browse the queue starting from index */
if (count == LPFC_QUE_ACC_BROWSE)
goto que_browse;
/* Read a single entry from the queue */
len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
que_browse:
/* Browse all entries from the queue */
last_index = idiag.offset.last_rd;
index = last_index;
while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
index++;
if (index > pque->entry_count - 1)
break;
}
/* Set up the offset for next portion of pci cfg read */
if (index > pque->entry_count - 1)
index = 0;
idiag.offset.last_rd = index;
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
}
/**
* lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
* @file: The file pointer to read from.
* @buf: The buffer to copy the user data from.
* @nbytes: The number of bytes to get.
* @ppos: The position in the file to start reading from.
*
* This routine get the debugfs idiag command struct from user space and then
* perform the syntax check for port queue read (dump) or write (set) command
* accordingly. In the case of port queue read command, it sets up the command
* in the idiag command struct for the following debugfs read operation. In
* the case of port queue write operation, it executes the write operation
* into the port queue entry accordingly.
*
* It returns the @nbytges passing in from debugfs user space when successful.
* In case of error conditions, it returns proper error code back to the user
* space.
**/
static ssize_t
lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
uint32_t qidx, quetp, queid, index, count, offset, value;
uint32_t *pentry;
struct lpfc_queue *pque, *qp;
int rc;
/* This is a user write operation */
debug->op = LPFC_IDIAG_OP_WR;
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
if (rc < 0)
return rc;
/* Get and sanity check on command feilds */
quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
/* Sanity check on command line arguments */
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
goto error_out;
if (count != 1)
goto error_out;
} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
goto error_out;
} else
goto error_out;
switch (quetp) {
case LPFC_IDIAG_EQ:
/* HBA event queue */
if (phba->sli4_hba.hdwq) {
for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
qp = phba->sli4_hba.hdwq[qidx].hba_eq;
if (qp && qp->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(qp,
index, count);
if (rc)
goto error_out;
idiag.ptr_private = qp;
goto pass_check;
}
}
}
goto error_out;
case LPFC_IDIAG_CQ:
/* MBX complete queue */
if (phba->sli4_hba.mbx_cq &&
phba->sli4_hba.mbx_cq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.mbx_cq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.mbx_cq;
goto pass_check;
}
/* ELS complete queue */
if (phba->sli4_hba.els_cq &&
phba->sli4_hba.els_cq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.els_cq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.els_cq;
goto pass_check;
}
/* NVME LS complete queue */
if (phba->sli4_hba.nvmels_cq &&
phba->sli4_hba.nvmels_cq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.nvmels_cq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.nvmels_cq;
goto pass_check;
}
/* FCP complete queue */
if (phba->sli4_hba.hdwq) {
for (qidx = 0; qidx < phba->cfg_hdw_queue;
qidx++) {
qp = phba->sli4_hba.hdwq[qidx].io_cq;
if (qp && qp->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
qp, index, count);
if (rc)
goto error_out;
idiag.ptr_private = qp;
goto pass_check;
}
}
}
goto error_out;
case LPFC_IDIAG_MQ:
/* MBX work queue */
if (phba->sli4_hba.mbx_wq &&
phba->sli4_hba.mbx_wq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.mbx_wq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.mbx_wq;
goto pass_check;
}
goto error_out;
case LPFC_IDIAG_WQ:
/* ELS work queue */
if (phba->sli4_hba.els_wq &&
phba->sli4_hba.els_wq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.els_wq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.els_wq;
goto pass_check;
}
/* NVME LS work queue */
if (phba->sli4_hba.nvmels_wq &&
phba->sli4_hba.nvmels_wq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.nvmels_wq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.nvmels_wq;
goto pass_check;
}
if (phba->sli4_hba.hdwq) {
/* FCP/SCSI work queue */
for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
qp = phba->sli4_hba.hdwq[qidx].io_wq;
if (qp && qp->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
qp, index, count);
if (rc)
goto error_out;
idiag.ptr_private = qp;
goto pass_check;
}
}
}
goto error_out;
case LPFC_IDIAG_RQ:
/* HDR queue */
if (phba->sli4_hba.hdr_rq &&
phba->sli4_hba.hdr_rq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.hdr_rq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.hdr_rq;
goto pass_check;
}
/* DAT queue */
if (phba->sli4_hba.dat_rq &&
phba->sli4_hba.dat_rq->queue_id == queid) {
/* Sanity check */
rc = lpfc_idiag_que_param_check(
phba->sli4_hba.dat_rq, index, count);
if (rc)
goto error_out;
idiag.ptr_private = phba->sli4_hba.dat_rq;
goto pass_check;
}
goto error_out;
default:
goto error_out;
}
pass_check:
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
if (count == LPFC_QUE_ACC_BROWSE)
idiag.offset.last_rd = index;
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
/* Additional sanity checks on write operation */
pque = (struct lpfc_queue *)idiag.ptr_private;
if (offset > pque->entry_size/sizeof(uint32_t) - 1)
goto error_out;
pentry = lpfc_sli4_qe(pque, index);
pentry += offset;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
*pentry = value;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
*pentry |= value;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
*pentry &= ~value;
}
return nbytes;
error_out:
/* Clean out command structure on command error out */
memset(&idiag, 0, sizeof(idiag));
return -EINVAL;
}
/**
* lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
* @phba: The pointer to hba structure.
* @pbuffer: The pointer to the buffer to copy the data to.
* @len: The length of bytes to copied.
* @drbregid: The id to doorbell registers.
*
* Description:
* This routine reads a doorbell register and copies its content to the
* user buffer pointed to by @pbuffer.
*
* Returns:
* This function returns the amount of data that was copied into @pbuffer.
**/
static int
lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
int len, uint32_t drbregid)
{
if (!pbuffer)
return 0;
switch (drbregid) {
case LPFC_DRB_EQ:
len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len,
"EQ-DRB-REG: 0x%08x\n",
readl(phba->sli4_hba.EQDBregaddr));
break;
case LPFC_DRB_CQ:
len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len,
"CQ-DRB-REG: 0x%08x\n",
readl(phba->sli4_hba.CQDBregaddr));
break;
case LPFC_DRB_MQ:
len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
"MQ-DRB-REG: 0x%08x\n",
readl(phba->sli4_hba.MQDBregaddr));
break;
case LPFC_DRB_WQ:
len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
"WQ-DRB-REG: 0x%08x\n",
readl(phba->sli4_hba.WQDBregaddr));
break;
case LPFC_DRB_RQ:
len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
"RQ-DRB-REG: 0x%08x\n",
readl(phba->sli4_hba.RQDBregaddr));
break;
default:
break;
}
return len;
}
/**
* lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from the @phba device doorbell register according
* to the idiag command, and copies to user @buf. Depending on the doorbell
* register read command setup, it does either a single doorbell register
* read or dump all doorbell registers.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
uint32_t drb_reg_id, i;
char *pbuffer;
int len = 0;
/* This is a user read operation */
debug->op = LPFC_IDIAG_OP_RD;
if (!debug->buffer)
debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
if (!debug->buffer)
return 0;
pbuffer = debug->buffer;
if (*ppos)
return 0;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
else
return 0;
if (drb_reg_id == LPFC_DRB_ACC_ALL)
for (i = 1; i <= LPFC_DRB_MAX; i++)
len = lpfc_idiag_drbacc_read_reg(phba,
pbuffer, len, i);
else
len = lpfc_idiag_drbacc_read_reg(phba,
pbuffer, len, drb_reg_id);
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
}
/**
* lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
* @file: The file pointer to read from.
* @buf: The buffer to copy the user data from.
* @nbytes: The number of bytes to get.
* @ppos: The position in the file to start reading from.
*
* This routine get the debugfs idiag command struct from user space and then
* perform the syntax check for port doorbell register read (dump) or write
* (set) command accordingly. In the case of port queue read command, it sets
* up the command in the idiag command struct for the following debugfs read
* operation. In the case of port doorbell register write operation, it
* executes the write operation into the port doorbell register accordingly.
*
* It returns the @nbytges passing in from debugfs user space when successful.
* In case of error conditions, it returns proper error code back to the user
* space.
**/
static ssize_t
lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
uint32_t drb_reg_id, value, reg_val = 0;
void __iomem *drb_reg;
int rc;
/* This is a user write operation */
debug->op = LPFC_IDIAG_OP_WR;
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
if (rc < 0)
return rc;
/* Sanity check on command line arguments */
drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
goto error_out;
if (drb_reg_id > LPFC_DRB_MAX)
goto error_out;
} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
goto error_out;
if ((drb_reg_id > LPFC_DRB_MAX) &&
(drb_reg_id != LPFC_DRB_ACC_ALL))
goto error_out;
} else
goto error_out;
/* Perform the write access operation */
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
switch (drb_reg_id) {
case LPFC_DRB_EQ:
drb_reg = phba->sli4_hba.EQDBregaddr;
break;
case LPFC_DRB_CQ:
drb_reg = phba->sli4_hba.CQDBregaddr;
break;
case LPFC_DRB_MQ:
drb_reg = phba->sli4_hba.MQDBregaddr;
break;
case LPFC_DRB_WQ:
drb_reg = phba->sli4_hba.WQDBregaddr;
break;
case LPFC_DRB_RQ:
drb_reg = phba->sli4_hba.RQDBregaddr;
break;
default:
goto error_out;
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
reg_val = value;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
reg_val = readl(drb_reg);
reg_val |= value;
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
reg_val = readl(drb_reg);
reg_val &= ~value;
}
writel(reg_val, drb_reg);
readl(drb_reg); /* flush */
}
return nbytes;
error_out:
/* Clean out command structure on command error out */
memset(&idiag, 0, sizeof(idiag));
return -EINVAL;
}
/**
* lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
* @phba: The pointer to hba structure.
* @pbuffer: The pointer to the buffer to copy the data to.
* @len: The length of bytes to copied.
* @ctlregid: The id to doorbell registers.
*
* Description:
* This routine reads a control register and copies its content to the
* user buffer pointed to by @pbuffer.
*
* Returns:
* This function returns the amount of data that was copied into @pbuffer.
**/
static int
lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
int len, uint32_t ctlregid)
{
if (!pbuffer)
return 0;
switch (ctlregid) {
case LPFC_CTL_PORT_SEM:
len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
"Port SemReg: 0x%08x\n",
readl(phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_SEM_OFFSET));
break;
case LPFC_CTL_PORT_STA:
len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
"Port StaReg: 0x%08x\n",
readl(phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_STA_OFFSET));
break;
case LPFC_CTL_PORT_CTL:
len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
"Port CtlReg: 0x%08x\n",
readl(phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_CTL_OFFSET));
break;
case LPFC_CTL_PORT_ER1:
len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
"Port Er1Reg: 0x%08x\n",
readl(phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_ER1_OFFSET));
break;
case LPFC_CTL_PORT_ER2:
len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
"Port Er2Reg: 0x%08x\n",
readl(phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_ER2_OFFSET));
break;
case LPFC_CTL_PDEV_CTL:
len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
"PDev CtlReg: 0x%08x\n",
readl(phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PDEV_CTL_OFFSET));
break;
default:
break;
}
return len;
}
/**
* lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from the @phba port and device registers according
* to the idiag command, and copies to user @buf.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
uint32_t ctl_reg_id, i;
char *pbuffer;
int len = 0;
/* This is a user read operation */
debug->op = LPFC_IDIAG_OP_RD;
if (!debug->buffer)
debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
if (!debug->buffer)
return 0;
pbuffer = debug->buffer;
if (*ppos)
return 0;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
else
return 0;
if (ctl_reg_id == LPFC_CTL_ACC_ALL)
for (i = 1; i <= LPFC_CTL_MAX; i++)
len = lpfc_idiag_ctlacc_read_reg(phba,
pbuffer, len, i);
else
len = lpfc_idiag_ctlacc_read_reg(phba,
pbuffer, len, ctl_reg_id);
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
}
/**
* lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
* @file: The file pointer to read from.
* @buf: The buffer to copy the user data from.
* @nbytes: The number of bytes to get.
* @ppos: The position in the file to start reading from.
*
* This routine get the debugfs idiag command struct from user space and then
* perform the syntax check for port and device control register read (dump)
* or write (set) command accordingly.
*
* It returns the @nbytges passing in from debugfs user space when successful.
* In case of error conditions, it returns proper error code back to the user
* space.
**/
static ssize_t
lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
uint32_t ctl_reg_id, value, reg_val = 0;
void __iomem *ctl_reg;
int rc;
/* This is a user write operation */
debug->op = LPFC_IDIAG_OP_WR;
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
if (rc < 0)
return rc;
/* Sanity check on command line arguments */
ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
goto error_out;
if (ctl_reg_id > LPFC_CTL_MAX)
goto error_out;
} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
goto error_out;
if ((ctl_reg_id > LPFC_CTL_MAX) &&
(ctl_reg_id != LPFC_CTL_ACC_ALL))
goto error_out;
} else
goto error_out;
/* Perform the write access operation */
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
switch (ctl_reg_id) {
case LPFC_CTL_PORT_SEM:
ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_SEM_OFFSET;
break;
case LPFC_CTL_PORT_STA:
ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_STA_OFFSET;
break;
case LPFC_CTL_PORT_CTL:
ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_CTL_OFFSET;
break;
case LPFC_CTL_PORT_ER1:
ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_ER1_OFFSET;
break;
case LPFC_CTL_PORT_ER2:
ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PORT_ER2_OFFSET;
break;
case LPFC_CTL_PDEV_CTL:
ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
LPFC_CTL_PDEV_CTL_OFFSET;
break;
default:
goto error_out;
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
reg_val = value;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
reg_val = readl(ctl_reg);
reg_val |= value;
}
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
reg_val = readl(ctl_reg);
reg_val &= ~value;
}
writel(reg_val, ctl_reg);
readl(ctl_reg); /* flush */
}
return nbytes;
error_out:
/* Clean out command structure on command error out */
memset(&idiag, 0, sizeof(idiag));
return -EINVAL;
}
/**
* lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
* @phba: Pointer to HBA context object.
* @pbuffer: Pointer to data buffer.
*
* Description:
* This routine gets the driver mailbox access debugfs setup information.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static int
lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
{
uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
int len = 0;
mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
"mbx_dump_map: 0x%08x\n", mbx_dump_map);
len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
"mbx_dump_cnt: %04d\n", mbx_dump_cnt);
len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
"mbx_word_cnt: %04d\n", mbx_word_cnt);
len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
"mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
return len;
}
/**
* lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from the @phba driver mailbox access debugfs setup
* information.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
char *pbuffer;
int len = 0;
/* This is a user read operation */
debug->op = LPFC_IDIAG_OP_RD;
if (!debug->buffer)
debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
if (!debug->buffer)
return 0;
pbuffer = debug->buffer;
if (*ppos)
return 0;
if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
(idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
return 0;
len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
}
/**
* lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
* @file: The file pointer to read from.
* @buf: The buffer to copy the user data from.
* @nbytes: The number of bytes to get.
* @ppos: The position in the file to start reading from.
*
* This routine get the debugfs idiag command struct from user space and then
* perform the syntax check for driver mailbox command (dump) and sets up the
* necessary states in the idiag command struct accordingly.
*
* It returns the @nbytges passing in from debugfs user space when successful.
* In case of error conditions, it returns proper error code back to the user
* space.
**/
static ssize_t
lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
int rc;
/* This is a user write operation */
debug->op = LPFC_IDIAG_OP_WR;
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
if (rc < 0)
return rc;
/* Sanity check on command line arguments */
mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
goto error_out;
if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
(mbx_dump_map != LPFC_MBX_DMP_ALL))
goto error_out;
if (mbx_word_cnt > sizeof(MAILBOX_t))
goto error_out;
} else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
goto error_out;
if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
(mbx_dump_map != LPFC_MBX_DMP_ALL))
goto error_out;
if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
goto error_out;
if (mbx_mbox_cmd != 0x9b)
goto error_out;
} else
goto error_out;
if (mbx_word_cnt == 0)
goto error_out;
if (rc != LPFC_MBX_DMP_ARG)
goto error_out;
if (mbx_mbox_cmd & ~0xff)
goto error_out;
/* condition for stop mailbox dump */
if (mbx_dump_cnt == 0)
goto reset_out;
return nbytes;
reset_out:
/* Clean out command structure on command error out */
memset(&idiag, 0, sizeof(idiag));
return nbytes;
error_out:
/* Clean out command structure on command error out */
memset(&idiag, 0, sizeof(idiag));
return -EINVAL;
}
/**
* lpfc_idiag_extacc_avail_get - get the available extents information
* @phba: pointer to lpfc hba data structure.
* @pbuffer: pointer to internal buffer.
* @len: length into the internal buffer data has been copied.
*
* Description:
* This routine is to get the available extent information.
*
* Returns:
* overall length of the data read into the internal buffer.
**/
static int
lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
{
uint16_t ext_cnt = 0, ext_size = 0;
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\nAvailable Extents Information:\n");
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tPort Available VPI extents: ");
lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
&ext_cnt, &ext_size);
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"Count %3d, Size %3d\n", ext_cnt, ext_size);
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tPort Available VFI extents: ");
lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
&ext_cnt, &ext_size);
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"Count %3d, Size %3d\n", ext_cnt, ext_size);
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tPort Available RPI extents: ");
lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
&ext_cnt, &ext_size);
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"Count %3d, Size %3d\n", ext_cnt, ext_size);
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tPort Available XRI extents: ");
lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
&ext_cnt, &ext_size);
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"Count %3d, Size %3d\n", ext_cnt, ext_size);
return len;
}
/**
* lpfc_idiag_extacc_alloc_get - get the allocated extents information
* @phba: pointer to lpfc hba data structure.
* @pbuffer: pointer to internal buffer.
* @len: length into the internal buffer data has been copied.
*
* Description:
* This routine is to get the allocated extent information.
*
* Returns:
* overall length of the data read into the internal buffer.
**/
static int
lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
{
uint16_t ext_cnt, ext_size;
int rc;
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\nAllocated Extents Information:\n");
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tHost Allocated VPI extents: ");
rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
&ext_cnt, &ext_size);
if (!rc)
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"Port %d Extent %3d, Size %3d\n",
phba->brd_no, ext_cnt, ext_size);
else
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"N/A\n");
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tHost Allocated VFI extents: ");
rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
&ext_cnt, &ext_size);
if (!rc)
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"Port %d Extent %3d, Size %3d\n",
phba->brd_no, ext_cnt, ext_size);
else
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"N/A\n");
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tHost Allocated RPI extents: ");
rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
&ext_cnt, &ext_size);
if (!rc)
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"Port %d Extent %3d, Size %3d\n",
phba->brd_no, ext_cnt, ext_size);
else
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"N/A\n");
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tHost Allocated XRI extents: ");
rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
&ext_cnt, &ext_size);
if (!rc)
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"Port %d Extent %3d, Size %3d\n",
phba->brd_no, ext_cnt, ext_size);
else
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"N/A\n");
return len;
}
/**
* lpfc_idiag_extacc_drivr_get - get driver extent information
* @phba: pointer to lpfc hba data structure.
* @pbuffer: pointer to internal buffer.
* @len: length into the internal buffer data has been copied.
*
* Description:
* This routine is to get the driver extent information.
*
* Returns:
* overall length of the data read into the internal buffer.
**/
static int
lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
{
struct lpfc_rsrc_blks *rsrc_blks;
int index;
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\nDriver Extents Information:\n");
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tVPI extents:\n");
index = 0;
list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\t\tBlock %3d: Start %4d, Count %4d\n",
index, rsrc_blks->rsrc_start,
rsrc_blks->rsrc_size);
index++;
}
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tVFI extents:\n");
index = 0;
list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
list) {
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\t\tBlock %3d: Start %4d, Count %4d\n",
index, rsrc_blks->rsrc_start,
rsrc_blks->rsrc_size);
index++;
}
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tRPI extents:\n");
index = 0;
list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
list) {
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\t\tBlock %3d: Start %4d, Count %4d\n",
index, rsrc_blks->rsrc_start,
rsrc_blks->rsrc_size);
index++;
}
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\tXRI extents:\n");
index = 0;
list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
list) {
len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
"\t\tBlock %3d: Start %4d, Count %4d\n",
index, rsrc_blks->rsrc_start,
rsrc_blks->rsrc_size);
index++;
}
return len;
}
/**
* lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
* @file: The file pointer to read from.
* @buf: The buffer to copy the user data from.
* @nbytes: The number of bytes to get.
* @ppos: The position in the file to start reading from.
*
* This routine get the debugfs idiag command struct from user space and then
* perform the syntax check for extent information access commands and sets
* up the necessary states in the idiag command struct accordingly.
*
* It returns the @nbytges passing in from debugfs user space when successful.
* In case of error conditions, it returns proper error code back to the user
* space.
**/
static ssize_t
lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
uint32_t ext_map;
int rc;
/* This is a user write operation */
debug->op = LPFC_IDIAG_OP_WR;
rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
if (rc < 0)
return rc;
ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
goto error_out;
if (rc != LPFC_EXT_ACC_CMD_ARG)
goto error_out;
if (!(ext_map & LPFC_EXT_ACC_ALL))
goto error_out;
return nbytes;
error_out:
/* Clean out command structure on command error out */
memset(&idiag, 0, sizeof(idiag));
return -EINVAL;
}
/**
* lpfc_idiag_extacc_read - idiag debugfs read access to extent information
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
* @nbytes: The number of bytes to read.
* @ppos: The position in the file to start reading from.
*
* Description:
* This routine reads data from the proper extent information according to
* the idiag command, and copies to user @buf.
*
* Returns:
* This function returns the amount of data that was read (this could be less
* than @nbytes if the end of the file was reached) or a negative error value.
**/
static ssize_t
lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
char *pbuffer;
uint32_t ext_map;
int len = 0;
/* This is a user read operation */
debug->op = LPFC_IDIAG_OP_RD;
if (!debug->buffer)
debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
if (!debug->buffer)
return 0;
pbuffer = debug->buffer;
if (*ppos)
return 0;
if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
return 0;
ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
if (ext_map & LPFC_EXT_ACC_AVAIL)
len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
if (ext_map & LPFC_EXT_ACC_ALLOC)
len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
if (ext_map & LPFC_EXT_ACC_DRIVR)
len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
}
static int
lpfc_cgn_buffer_open(struct inode *inode, struct file *file)
{
struct lpfc_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->i_private = inode->i_private;
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
char *buffer = debug->buffer;
uint32_t *ptr;
int cnt, len = 0;
if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) {
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"Congestion Mgmt is not supported\n");
goto out;
}
ptr = (uint32_t *)phba->cgn_i->virt;
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"Congestion Buffer Header\n");
/* Dump the first 32 bytes */
cnt = 32;
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"000: %08x %08x %08x %08x %08x %08x %08x %08x\n",
*ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3),
*(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7));
ptr += 8;
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"Congestion Buffer Data\n");
while (cnt < sizeof(struct lpfc_cgn_info)) {
if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) {
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"Truncated . . .\n");
goto out;
}
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"%03x: %08x %08x %08x %08x "
"%08x %08x %08x %08x\n",
cnt, *ptr, *(ptr + 1), *(ptr + 2),
*(ptr + 3), *(ptr + 4), *(ptr + 5),
*(ptr + 6), *(ptr + 7));
cnt += 32;
ptr += 8;
}
if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) {
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"Truncated . . .\n");
goto out;
}
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"Parameter Data\n");
ptr = (uint32_t *)&phba->cgn_p;
len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
"%08x %08x %08x %08x\n",
*ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3));
out:
return simple_read_from_buffer(buf, nbytes, ppos, buffer, len);
}
static int
lpfc_cgn_buffer_release(struct inode *inode, struct file *file)
{
struct lpfc_debug *debug = file->private_data;
vfree(debug->buffer);
kfree(debug);
return 0;
}
static int
lpfc_rx_monitor_open(struct inode *inode, struct file *file)
{
struct lpfc_rx_monitor_debug *debug;
int rc = -ENOMEM;
debug = kmalloc(sizeof(*debug), GFP_KERNEL);
if (!debug)
goto out;
debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE);
if (!debug->buffer) {
kfree(debug);
goto out;
}
debug->i_private = inode->i_private;
file->private_data = debug;
rc = 0;
out:
return rc;
}
static ssize_t
lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes,
loff_t *ppos)
{
struct lpfc_rx_monitor_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
char *buffer = debug->buffer;
if (!phba->rx_monitor) {
scnprintf(buffer, MAX_DEBUGFS_RX_INFO_SIZE,
"Rx Monitor Info is empty.\n");
} else {
lpfc_rx_monitor_report(phba, phba->rx_monitor, buffer,
MAX_DEBUGFS_RX_INFO_SIZE,
LPFC_MAX_RXMONITOR_ENTRY);
}
return simple_read_from_buffer(buf, nbytes, ppos, buffer,
strlen(buffer));
}
static int
lpfc_rx_monitor_release(struct inode *inode, struct file *file)
{
struct lpfc_rx_monitor_debug *debug = file->private_data;
vfree(debug->buffer);
kfree(debug);
return 0;
}
#undef lpfc_debugfs_op_disc_trc
static const struct file_operations lpfc_debugfs_op_disc_trc = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_disc_trc_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_nodelist
static const struct file_operations lpfc_debugfs_op_nodelist = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_nodelist_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_multixripools
static const struct file_operations lpfc_debugfs_op_multixripools = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_multixripools_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.write = lpfc_debugfs_multixripools_write,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_hbqinfo
static const struct file_operations lpfc_debugfs_op_hbqinfo = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_hbqinfo_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.release = lpfc_debugfs_release,
};
#ifdef LPFC_HDWQ_LOCK_STAT
#undef lpfc_debugfs_op_lockstat
static const struct file_operations lpfc_debugfs_op_lockstat = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_lockstat_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.write = lpfc_debugfs_lockstat_write,
.release = lpfc_debugfs_release,
};
#endif
#undef lpfc_debugfs_ras_log
static const struct file_operations lpfc_debugfs_ras_log = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_ras_log_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.release = lpfc_debugfs_ras_log_release,
};
#undef lpfc_debugfs_op_dumpHBASlim
static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_dumpHBASlim_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_dumpHostSlim
static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_dumpHostSlim_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_nvmestat
static const struct file_operations lpfc_debugfs_op_nvmestat = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_nvmestat_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.write = lpfc_debugfs_nvmestat_write,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_scsistat
static const struct file_operations lpfc_debugfs_op_scsistat = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_scsistat_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.write = lpfc_debugfs_scsistat_write,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_ioktime
static const struct file_operations lpfc_debugfs_op_ioktime = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_ioktime_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.write = lpfc_debugfs_ioktime_write,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_nvmeio_trc
static const struct file_operations lpfc_debugfs_op_nvmeio_trc = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_nvmeio_trc_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.write = lpfc_debugfs_nvmeio_trc_write,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_hdwqstat
static const struct file_operations lpfc_debugfs_op_hdwqstat = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_hdwqstat_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.write = lpfc_debugfs_hdwqstat_write,
.release = lpfc_debugfs_release,
};
#undef lpfc_debugfs_op_dif_err
static const struct file_operations lpfc_debugfs_op_dif_err = {
.owner = THIS_MODULE,
.open = simple_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_dif_err_read,
.write = lpfc_debugfs_dif_err_write,
.release = lpfc_debugfs_dif_err_release,
};
#undef lpfc_debugfs_op_slow_ring_trc
static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_slow_ring_trc_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_debugfs_read,
.release = lpfc_debugfs_release,
};
static struct dentry *lpfc_debugfs_root = NULL;
static atomic_t lpfc_debugfs_hba_count;
/*
* File operations for the iDiag debugfs
*/
#undef lpfc_idiag_op_pciCfg
static const struct file_operations lpfc_idiag_op_pciCfg = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_idiag_pcicfg_read,
.write = lpfc_idiag_pcicfg_write,
.release = lpfc_idiag_cmd_release,
};
#undef lpfc_idiag_op_barAcc
static const struct file_operations lpfc_idiag_op_barAcc = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_idiag_baracc_read,
.write = lpfc_idiag_baracc_write,
.release = lpfc_idiag_cmd_release,
};
#undef lpfc_idiag_op_queInfo
static const struct file_operations lpfc_idiag_op_queInfo = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
.read = lpfc_idiag_queinfo_read,
.release = lpfc_idiag_release,
};
#undef lpfc_idiag_op_queAcc
static const struct file_operations lpfc_idiag_op_queAcc = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_idiag_queacc_read,
.write = lpfc_idiag_queacc_write,
.release = lpfc_idiag_cmd_release,
};
#undef lpfc_idiag_op_drbAcc
static const struct file_operations lpfc_idiag_op_drbAcc = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_idiag_drbacc_read,
.write = lpfc_idiag_drbacc_write,
.release = lpfc_idiag_cmd_release,
};
#undef lpfc_idiag_op_ctlAcc
static const struct file_operations lpfc_idiag_op_ctlAcc = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_idiag_ctlacc_read,
.write = lpfc_idiag_ctlacc_write,
.release = lpfc_idiag_cmd_release,
};
#undef lpfc_idiag_op_mbxAcc
static const struct file_operations lpfc_idiag_op_mbxAcc = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_idiag_mbxacc_read,
.write = lpfc_idiag_mbxacc_write,
.release = lpfc_idiag_cmd_release,
};
#undef lpfc_idiag_op_extAcc
static const struct file_operations lpfc_idiag_op_extAcc = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_idiag_extacc_read,
.write = lpfc_idiag_extacc_write,
.release = lpfc_idiag_cmd_release,
};
#undef lpfc_cgn_buffer_op
static const struct file_operations lpfc_cgn_buffer_op = {
.owner = THIS_MODULE,
.open = lpfc_cgn_buffer_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_cgn_buffer_read,
.release = lpfc_cgn_buffer_release,
};
#undef lpfc_rx_monitor_op
static const struct file_operations lpfc_rx_monitor_op = {
.owner = THIS_MODULE,
.open = lpfc_rx_monitor_open,
.llseek = lpfc_debugfs_lseek,
.read = lpfc_rx_monitor_read,
.release = lpfc_rx_monitor_release,
};
#endif
/* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
* @phba: Pointer to HBA context object.
* @dmabuf: Pointer to a DMA buffer descriptor.
*
* Description:
* This routine dump a bsg pass-through non-embedded mailbox command with
* external buffer.
**/
void
lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
enum mbox_type mbox_tp, enum dma_type dma_tp,
enum sta_type sta_tp,
struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
{
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
char line_buf[LPFC_MBX_ACC_LBUF_SZ];
int len = 0;
uint32_t do_dump = 0;
uint32_t *pword;
uint32_t i;
if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
return;
mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
(*mbx_dump_cnt == 0) ||
(*mbx_word_cnt == 0))
return;
if (*mbx_mbox_cmd != 0x9B)
return;
if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
pr_err("\nRead mbox command (x%x), "
"nemb:0x%x, extbuf_cnt:%d:\n",
sta_tp, nemb_tp, ext_buf);
}
}
if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
pr_err("\nRead mbox buffer (x%x), "
"nemb:0x%x, extbuf_seq:%d:\n",
sta_tp, nemb_tp, ext_buf);
}
}
if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
pr_err("\nWrite mbox command (x%x), "
"nemb:0x%x, extbuf_cnt:%d:\n",
sta_tp, nemb_tp, ext_buf);
}
}
if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
pr_err("\nWrite mbox buffer (x%x), "
"nemb:0x%x, extbuf_seq:%d:\n",
sta_tp, nemb_tp, ext_buf);
}
}
/* dump buffer content */
if (do_dump) {
pword = (uint32_t *)dmabuf->virt;
for (i = 0; i < *mbx_word_cnt; i++) {
if (!(i % 8)) {
if (i != 0)
pr_err("%s\n", line_buf);
len = 0;
len += scnprintf(line_buf+len,
LPFC_MBX_ACC_LBUF_SZ-len,
"%03d: ", i);
}
len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
"%08x ", (uint32_t)*pword);
pword++;
}
if ((i - 1) % 8)
pr_err("%s\n", line_buf);
(*mbx_dump_cnt)--;
}
/* Clean out command structure on reaching dump count */
if (*mbx_dump_cnt == 0)
memset(&idiag, 0, sizeof(idiag));
return;
#endif
}
/* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
* @phba: Pointer to HBA context object.
* @dmabuf: Pointer to a DMA buffer descriptor.
*
* Description:
* This routine dump a pass-through non-embedded mailbox command from issue
* mailbox command.
**/
void
lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
{
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
char line_buf[LPFC_MBX_ACC_LBUF_SZ];
int len = 0;
uint32_t *pword;
uint8_t *pbyte;
uint32_t i, j;
if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
return;
mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
(*mbx_dump_cnt == 0) ||
(*mbx_word_cnt == 0))
return;
if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
(*mbx_mbox_cmd != pmbox->mbxCommand))
return;
/* dump buffer content */
if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
pr_err("Mailbox command:0x%x dump by word:\n",
pmbox->mbxCommand);
pword = (uint32_t *)pmbox;
for (i = 0; i < *mbx_word_cnt; i++) {
if (!(i % 8)) {
if (i != 0)
pr_err("%s\n", line_buf);
len = 0;
memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
len += scnprintf(line_buf+len,
LPFC_MBX_ACC_LBUF_SZ-len,
"%03d: ", i);
}
len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
"%08x ",
((uint32_t)*pword) & 0xffffffff);
pword++;
}
if ((i - 1) % 8)
pr_err("%s\n", line_buf);
pr_err("\n");
}
if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
pr_err("Mailbox command:0x%x dump by byte:\n",
pmbox->mbxCommand);
pbyte = (uint8_t *)pmbox;
for (i = 0; i < *mbx_word_cnt; i++) {
if (!(i % 8)) {
if (i != 0)
pr_err("%s\n", line_buf);
len = 0;
memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
len += scnprintf(line_buf+len,
LPFC_MBX_ACC_LBUF_SZ-len,
"%03d: ", i);
}
for (j = 0; j < 4; j++) {
len += scnprintf(line_buf+len,
LPFC_MBX_ACC_LBUF_SZ-len,
"%02x",
((uint8_t)*pbyte) & 0xff);
pbyte++;
}
len += scnprintf(line_buf+len,
LPFC_MBX_ACC_LBUF_SZ-len, " ");
}
if ((i - 1) % 8)
pr_err("%s\n", line_buf);
pr_err("\n");
}
(*mbx_dump_cnt)--;
/* Clean out command structure on reaching dump count */
if (*mbx_dump_cnt == 0)
memset(&idiag, 0, sizeof(idiag));
return;
#endif
}
/**
* lpfc_debugfs_initialize - Initialize debugfs for a vport
* @vport: The vport pointer to initialize.
*
* Description:
* When Debugfs is configured this routine sets up the lpfc debugfs file system.
* If not already created, this routine will create the lpfc directory, and
* lpfcX directory (for this HBA), and vportX directory for this vport. It will
* also create each file used to access lpfc specific debugfs information.
**/
inline void
lpfc_debugfs_initialize(struct lpfc_vport *vport)
{
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_hba *phba = vport->phba;
char name[64];
uint32_t num, i;
bool pport_setup = false;
if (!lpfc_debugfs_enable)
return;
/* Setup lpfc root directory */
if (!lpfc_debugfs_root) {
lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
atomic_set(&lpfc_debugfs_hba_count, 0);
}
if (!lpfc_debugfs_start_time)
lpfc_debugfs_start_time = jiffies;
/* Setup funcX directory for specific HBA PCI function */
snprintf(name, sizeof(name), "fn%d", phba->brd_no);
if (!phba->hba_debugfs_root) {
pport_setup = true;
phba->hba_debugfs_root =
debugfs_create_dir(name, lpfc_debugfs_root);
atomic_inc(&lpfc_debugfs_hba_count);
atomic_set(&phba->debugfs_vport_count, 0);
/* Multi-XRI pools */
snprintf(name, sizeof(name), "multixripools");
phba->debug_multixri_pools =
debugfs_create_file(name, S_IFREG | 0644,
phba->hba_debugfs_root,
phba,
&lpfc_debugfs_op_multixripools);
if (IS_ERR(phba->debug_multixri_pools)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0527 Cannot create debugfs multixripools\n");
goto debug_failed;
}
/* Congestion Info Buffer */
scnprintf(name, sizeof(name), "cgn_buffer");
phba->debug_cgn_buffer =
debugfs_create_file(name, S_IFREG | 0644,
phba->hba_debugfs_root,
phba, &lpfc_cgn_buffer_op);
if (IS_ERR(phba->debug_cgn_buffer)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"6527 Cannot create debugfs "
"cgn_buffer\n");
goto debug_failed;
}
/* RX Monitor */
scnprintf(name, sizeof(name), "rx_monitor");
phba->debug_rx_monitor =
debugfs_create_file(name, S_IFREG | 0644,
phba->hba_debugfs_root,
phba, &lpfc_rx_monitor_op);
if (IS_ERR(phba->debug_rx_monitor)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"6528 Cannot create debugfs "
"rx_monitor\n");
goto debug_failed;
}
/* RAS log */
snprintf(name, sizeof(name), "ras_log");
phba->debug_ras_log =
debugfs_create_file(name, 0644,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_ras_log);
if (IS_ERR(phba->debug_ras_log)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"6148 Cannot create debugfs"
" ras_log\n");
goto debug_failed;
}
/* Setup hbqinfo */
snprintf(name, sizeof(name), "hbqinfo");
phba->debug_hbqinfo =
debugfs_create_file(name, S_IFREG | 0644,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_hbqinfo);
#ifdef LPFC_HDWQ_LOCK_STAT
/* Setup lockstat */
snprintf(name, sizeof(name), "lockstat");
phba->debug_lockstat =
debugfs_create_file(name, S_IFREG | 0644,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_lockstat);
if (IS_ERR(phba->debug_lockstat)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"4610 Can't create debugfs lockstat\n");
goto debug_failed;
}
#endif
/* Setup dumpHBASlim */
if (phba->sli_rev < LPFC_SLI_REV4) {
snprintf(name, sizeof(name), "dumpHBASlim");
phba->debug_dumpHBASlim =
debugfs_create_file(name,
S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dumpHBASlim);
} else
phba->debug_dumpHBASlim = NULL;
/* Setup dumpHostSlim */
if (phba->sli_rev < LPFC_SLI_REV4) {
snprintf(name, sizeof(name), "dumpHostSlim");
phba->debug_dumpHostSlim =
debugfs_create_file(name,
S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dumpHostSlim);
} else
phba->debug_dumpHostSlim = NULL;
/* Setup DIF Error Injections */
snprintf(name, sizeof(name), "InjErrLBA");
phba->debug_InjErrLBA =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
snprintf(name, sizeof(name), "InjErrNPortID");
phba->debug_InjErrNPortID =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
snprintf(name, sizeof(name), "InjErrWWPN");
phba->debug_InjErrWWPN =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
snprintf(name, sizeof(name), "writeGuardInjErr");
phba->debug_writeGuard =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
snprintf(name, sizeof(name), "writeAppInjErr");
phba->debug_writeApp =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
snprintf(name, sizeof(name), "writeRefInjErr");
phba->debug_writeRef =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
snprintf(name, sizeof(name), "readGuardInjErr");
phba->debug_readGuard =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
snprintf(name, sizeof(name), "readAppInjErr");
phba->debug_readApp =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
snprintf(name, sizeof(name), "readRefInjErr");
phba->debug_readRef =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_dif_err);
/* Setup slow ring trace */
if (lpfc_debugfs_max_slow_ring_trc) {
num = lpfc_debugfs_max_slow_ring_trc - 1;
if (num & lpfc_debugfs_max_slow_ring_trc) {
/* Change to be a power of 2 */
num = lpfc_debugfs_max_slow_ring_trc;
i = 0;
while (num > 1) {
num = num >> 1;
i++;
}
lpfc_debugfs_max_slow_ring_trc = (1 << i);
pr_err("lpfc_debugfs_max_disc_trc changed to "
"%d\n", lpfc_debugfs_max_disc_trc);
}
}
snprintf(name, sizeof(name), "slow_ring_trace");
phba->debug_slow_ring_trc =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_slow_ring_trc);
if (!phba->slow_ring_trc) {
phba->slow_ring_trc = kcalloc(
lpfc_debugfs_max_slow_ring_trc,
sizeof(struct lpfc_debugfs_trc),
GFP_KERNEL);
if (!phba->slow_ring_trc) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0416 Cannot create debugfs "
"slow_ring buffer\n");
goto debug_failed;
}
atomic_set(&phba->slow_ring_trc_cnt, 0);
}
snprintf(name, sizeof(name), "nvmeio_trc");
phba->debug_nvmeio_trc =
debugfs_create_file(name, 0644,
phba->hba_debugfs_root,
phba, &lpfc_debugfs_op_nvmeio_trc);
atomic_set(&phba->nvmeio_trc_cnt, 0);
if (lpfc_debugfs_max_nvmeio_trc) {
num = lpfc_debugfs_max_nvmeio_trc - 1;
if (num & lpfc_debugfs_max_disc_trc) {
/* Change to be a power of 2 */
num = lpfc_debugfs_max_nvmeio_trc;
i = 0;
while (num > 1) {
num = num >> 1;
i++;
}
lpfc_debugfs_max_nvmeio_trc = (1 << i);
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0575 lpfc_debugfs_max_nvmeio_trc "
"changed to %d\n",
lpfc_debugfs_max_nvmeio_trc);
}
phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc;
/* Allocate trace buffer and initialize */
phba->nvmeio_trc = kzalloc(
(sizeof(struct lpfc_debugfs_nvmeio_trc) *
phba->nvmeio_trc_size), GFP_KERNEL);
if (!phba->nvmeio_trc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0576 Cannot create debugfs "
"nvmeio_trc buffer\n");
goto nvmeio_off;
}
phba->nvmeio_trc_on = 1;
phba->nvmeio_trc_output_idx = 0;
phba->nvmeio_trc = NULL;
} else {
nvmeio_off:
phba->nvmeio_trc_size = 0;
phba->nvmeio_trc_on = 0;
phba->nvmeio_trc_output_idx = 0;
phba->nvmeio_trc = NULL;
}
}
snprintf(name, sizeof(name), "vport%d", vport->vpi);
if (!vport->vport_debugfs_root) {
vport->vport_debugfs_root =
debugfs_create_dir(name, phba->hba_debugfs_root);
atomic_inc(&phba->debugfs_vport_count);
}
if (lpfc_debugfs_max_disc_trc) {
num = lpfc_debugfs_max_disc_trc - 1;
if (num & lpfc_debugfs_max_disc_trc) {
/* Change to be a power of 2 */
num = lpfc_debugfs_max_disc_trc;
i = 0;
while (num > 1) {
num = num >> 1;
i++;
}
lpfc_debugfs_max_disc_trc = (1 << i);
pr_err("lpfc_debugfs_max_disc_trc changed to %d\n",
lpfc_debugfs_max_disc_trc);
}
}
vport->disc_trc = kzalloc(
(sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
GFP_KERNEL);
if (!vport->disc_trc) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0418 Cannot create debugfs disc trace "
"buffer\n");
goto debug_failed;
}
atomic_set(&vport->disc_trc_cnt, 0);
snprintf(name, sizeof(name), "discovery_trace");
vport->debug_disc_trc =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
vport->vport_debugfs_root,
vport, &lpfc_debugfs_op_disc_trc);
snprintf(name, sizeof(name), "nodelist");
vport->debug_nodelist =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
vport->vport_debugfs_root,
vport, &lpfc_debugfs_op_nodelist);
snprintf(name, sizeof(name), "nvmestat");
vport->debug_nvmestat =
debugfs_create_file(name, 0644,
vport->vport_debugfs_root,
vport, &lpfc_debugfs_op_nvmestat);
snprintf(name, sizeof(name), "scsistat");
vport->debug_scsistat =
debugfs_create_file(name, 0644,
vport->vport_debugfs_root,
vport, &lpfc_debugfs_op_scsistat);
if (IS_ERR(vport->debug_scsistat)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"4611 Cannot create debugfs scsistat\n");
goto debug_failed;
}
snprintf(name, sizeof(name), "ioktime");
vport->debug_ioktime =
debugfs_create_file(name, 0644,
vport->vport_debugfs_root,
vport, &lpfc_debugfs_op_ioktime);
if (IS_ERR(vport->debug_ioktime)) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
"0815 Cannot create debugfs ioktime\n");
goto debug_failed;
}
snprintf(name, sizeof(name), "hdwqstat");
vport->debug_hdwqstat =
debugfs_create_file(name, 0644,
vport->vport_debugfs_root,
vport, &lpfc_debugfs_op_hdwqstat);
/*
* The following section is for additional directories/files for the
* physical port.
*/
if (!pport_setup)
goto debug_failed;
/*
* iDiag debugfs root entry points for SLI4 device only
*/
if (phba->sli_rev < LPFC_SLI_REV4)
goto debug_failed;
snprintf(name, sizeof(name), "iDiag");
if (!phba->idiag_root) {
phba->idiag_root =
debugfs_create_dir(name, phba->hba_debugfs_root);
/* Initialize iDiag data structure */
memset(&idiag, 0, sizeof(idiag));
}
/* iDiag read PCI config space */
snprintf(name, sizeof(name), "pciCfg");
if (!phba->idiag_pci_cfg) {
phba->idiag_pci_cfg =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
idiag.offset.last_rd = 0;
}
/* iDiag PCI BAR access */
snprintf(name, sizeof(name), "barAcc");
if (!phba->idiag_bar_acc) {
phba->idiag_bar_acc =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
idiag.offset.last_rd = 0;
}
/* iDiag get PCI function queue information */
snprintf(name, sizeof(name), "queInfo");
if (!phba->idiag_que_info) {
phba->idiag_que_info =
debugfs_create_file(name, S_IFREG|S_IRUGO,
phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
}
/* iDiag access PCI function queue */
snprintf(name, sizeof(name), "queAcc");
if (!phba->idiag_que_acc) {
phba->idiag_que_acc =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
}
/* iDiag access PCI function doorbell registers */
snprintf(name, sizeof(name), "drbAcc");
if (!phba->idiag_drb_acc) {
phba->idiag_drb_acc =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
}
/* iDiag access PCI function control registers */
snprintf(name, sizeof(name), "ctlAcc");
if (!phba->idiag_ctl_acc) {
phba->idiag_ctl_acc =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
}
/* iDiag access mbox commands */
snprintf(name, sizeof(name), "mbxAcc");
if (!phba->idiag_mbx_acc) {
phba->idiag_mbx_acc =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
}
/* iDiag extents access commands */
if (phba->sli4_hba.extents_in_use) {
snprintf(name, sizeof(name), "extAcc");
if (!phba->idiag_ext_acc) {
phba->idiag_ext_acc =
debugfs_create_file(name,
S_IFREG|S_IRUGO|S_IWUSR,
phba->idiag_root, phba,
&lpfc_idiag_op_extAcc);
}
}
debug_failed:
return;
#endif
}
/**
* lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
* @vport: The vport pointer to remove from debugfs.
*
* Description:
* When Debugfs is configured this routine removes debugfs file system elements
* that are specific to this vport. It also checks to see if there are any
* users left for the debugfs directories associated with the HBA and driver. If
* this is the last user of the HBA directory or driver directory then it will
* remove those from the debugfs infrastructure as well.
**/
inline void
lpfc_debugfs_terminate(struct lpfc_vport *vport)
{
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
struct lpfc_hba *phba = vport->phba;
kfree(vport->disc_trc);
vport->disc_trc = NULL;
debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
vport->debug_disc_trc = NULL;
debugfs_remove(vport->debug_nodelist); /* nodelist */
vport->debug_nodelist = NULL;
debugfs_remove(vport->debug_nvmestat); /* nvmestat */
vport->debug_nvmestat = NULL;
debugfs_remove(vport->debug_scsistat); /* scsistat */
vport->debug_scsistat = NULL;
debugfs_remove(vport->debug_ioktime); /* ioktime */
vport->debug_ioktime = NULL;
debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */
vport->debug_hdwqstat = NULL;
if (vport->vport_debugfs_root) {
debugfs_remove(vport->vport_debugfs_root); /* vportX */
vport->vport_debugfs_root = NULL;
atomic_dec(&phba->debugfs_vport_count);
}
if (atomic_read(&phba->debugfs_vport_count) == 0) {
debugfs_remove(phba->debug_multixri_pools); /* multixripools*/
phba->debug_multixri_pools = NULL;
debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
phba->debug_hbqinfo = NULL;
debugfs_remove(phba->debug_cgn_buffer);
phba->debug_cgn_buffer = NULL;
debugfs_remove(phba->debug_rx_monitor);
phba->debug_rx_monitor = NULL;
debugfs_remove(phba->debug_ras_log);
phba->debug_ras_log = NULL;
#ifdef LPFC_HDWQ_LOCK_STAT
debugfs_remove(phba->debug_lockstat); /* lockstat */
phba->debug_lockstat = NULL;
#endif
debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
phba->debug_dumpHBASlim = NULL;
debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
phba->debug_dumpHostSlim = NULL;
debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
phba->debug_InjErrLBA = NULL;
debugfs_remove(phba->debug_InjErrNPortID);
phba->debug_InjErrNPortID = NULL;
debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */
phba->debug_InjErrWWPN = NULL;
debugfs_remove(phba->debug_writeGuard); /* writeGuard */
phba->debug_writeGuard = NULL;
debugfs_remove(phba->debug_writeApp); /* writeApp */
phba->debug_writeApp = NULL;
debugfs_remove(phba->debug_writeRef); /* writeRef */
phba->debug_writeRef = NULL;
debugfs_remove(phba->debug_readGuard); /* readGuard */
phba->debug_readGuard = NULL;
debugfs_remove(phba->debug_readApp); /* readApp */
phba->debug_readApp = NULL;
debugfs_remove(phba->debug_readRef); /* readRef */
phba->debug_readRef = NULL;
kfree(phba->slow_ring_trc);
phba->slow_ring_trc = NULL;
/* slow_ring_trace */
debugfs_remove(phba->debug_slow_ring_trc);
phba->debug_slow_ring_trc = NULL;
debugfs_remove(phba->debug_nvmeio_trc);
phba->debug_nvmeio_trc = NULL;
kfree(phba->nvmeio_trc);
phba->nvmeio_trc = NULL;
/*
* iDiag release
*/
if (phba->sli_rev == LPFC_SLI_REV4) {
/* iDiag extAcc */
debugfs_remove(phba->idiag_ext_acc);
phba->idiag_ext_acc = NULL;
/* iDiag mbxAcc */
debugfs_remove(phba->idiag_mbx_acc);
phba->idiag_mbx_acc = NULL;
/* iDiag ctlAcc */
debugfs_remove(phba->idiag_ctl_acc);
phba->idiag_ctl_acc = NULL;
/* iDiag drbAcc */
debugfs_remove(phba->idiag_drb_acc);
phba->idiag_drb_acc = NULL;
/* iDiag queAcc */
debugfs_remove(phba->idiag_que_acc);
phba->idiag_que_acc = NULL;
/* iDiag queInfo */
debugfs_remove(phba->idiag_que_info);
phba->idiag_que_info = NULL;
/* iDiag barAcc */
debugfs_remove(phba->idiag_bar_acc);
phba->idiag_bar_acc = NULL;
/* iDiag pciCfg */
debugfs_remove(phba->idiag_pci_cfg);
phba->idiag_pci_cfg = NULL;
/* Finally remove the iDiag debugfs root */
debugfs_remove(phba->idiag_root);
phba->idiag_root = NULL;
}
if (phba->hba_debugfs_root) {
debugfs_remove(phba->hba_debugfs_root); /* fnX */
phba->hba_debugfs_root = NULL;
atomic_dec(&lpfc_debugfs_hba_count);
}
if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
debugfs_remove(lpfc_debugfs_root); /* lpfc */
lpfc_debugfs_root = NULL;
}
}
#endif
return;
}
/*
* Driver debug utility routines outside of debugfs. The debug utility
* routines implemented here is intended to be used in the instrumented
* debug driver for debugging host or port issues.
*/
/**
* lpfc_debug_dump_all_queues - dump all the queues with a hba
* @phba: Pointer to HBA context object.
*
* This function dumps entries of all the queues asociated with the @phba.
**/
void
lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
{
int idx;
/*
* Dump Work Queues (WQs)
*/
lpfc_debug_dump_wq(phba, DUMP_MBX, 0);
lpfc_debug_dump_wq(phba, DUMP_ELS, 0);
lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0);
for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
lpfc_debug_dump_wq(phba, DUMP_IO, idx);
lpfc_debug_dump_hdr_rq(phba);
lpfc_debug_dump_dat_rq(phba);
/*
* Dump Complete Queues (CQs)
*/
lpfc_debug_dump_cq(phba, DUMP_MBX, 0);
lpfc_debug_dump_cq(phba, DUMP_ELS, 0);
lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0);
for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
lpfc_debug_dump_cq(phba, DUMP_IO, idx);
/*
* Dump Event Queues (EQs)
*/
for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
lpfc_debug_dump_hba_eq(phba, idx);
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_debugfs.c
|
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
/*
* Fibre Channel SCSI LAN Device Driver CT support: FC Generic Services FC-GS
*/
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/utsname.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_version.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"
/* FDMI Port Speed definitions - FC-GS-7 */
#define HBA_PORTSPEED_1GFC 0x00000001 /* 1G FC */
#define HBA_PORTSPEED_2GFC 0x00000002 /* 2G FC */
#define HBA_PORTSPEED_4GFC 0x00000008 /* 4G FC */
#define HBA_PORTSPEED_10GFC 0x00000004 /* 10G FC */
#define HBA_PORTSPEED_8GFC 0x00000010 /* 8G FC */
#define HBA_PORTSPEED_16GFC 0x00000020 /* 16G FC */
#define HBA_PORTSPEED_32GFC 0x00000040 /* 32G FC */
#define HBA_PORTSPEED_20GFC 0x00000080 /* 20G FC */
#define HBA_PORTSPEED_40GFC 0x00000100 /* 40G FC */
#define HBA_PORTSPEED_128GFC 0x00000200 /* 128G FC */
#define HBA_PORTSPEED_64GFC 0x00000400 /* 64G FC */
#define HBA_PORTSPEED_256GFC 0x00000800 /* 256G FC */
#define HBA_PORTSPEED_UNKNOWN 0x00008000 /* Unknown */
#define HBA_PORTSPEED_10GE 0x00010000 /* 10G E */
#define HBA_PORTSPEED_40GE 0x00020000 /* 40G E */
#define HBA_PORTSPEED_100GE 0x00040000 /* 100G E */
#define HBA_PORTSPEED_25GE 0x00080000 /* 25G E */
#define HBA_PORTSPEED_50GE 0x00100000 /* 50G E */
#define HBA_PORTSPEED_400GE 0x00200000 /* 400G E */
#define FOURBYTES 4
static char *lpfc_release_version = LPFC_DRIVER_VERSION;
static void
lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb);
static void
lpfc_ct_ignore_hbq_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
struct lpfc_dmabuf *mp, uint32_t size)
{
if (!mp) {
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"0146 Ignoring unsolicited CT No HBQ "
"status = x%x\n",
get_job_ulpstatus(phba, piocbq));
}
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"0145 Ignoring unsolicited CT HBQ Size:%d "
"status = x%x\n",
size, get_job_ulpstatus(phba, piocbq));
}
static void
lpfc_ct_unsol_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
struct lpfc_dmabuf *mp, uint32_t size)
{
lpfc_ct_ignore_hbq_buffer(phba, piocbq, mp, size);
}
/**
* lpfc_ct_unsol_cmpl : Completion callback function for unsol ct commands
* @phba : pointer to lpfc hba data structure.
* @cmdiocb : pointer to lpfc command iocb data structure.
* @rspiocb : pointer to lpfc response iocb data structure.
*
* This routine is the callback function for issuing unsol ct reject command.
* The memory allocated in the reject command path is freed up here.
**/
static void
lpfc_ct_unsol_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_nodelist *ndlp;
struct lpfc_dmabuf *mp, *bmp;
ndlp = cmdiocb->ndlp;
if (ndlp)
lpfc_nlp_put(ndlp);
mp = cmdiocb->rsp_dmabuf;
bmp = cmdiocb->bpl_dmabuf;
if (mp) {
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
cmdiocb->rsp_dmabuf = NULL;
}
if (bmp) {
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
kfree(bmp);
cmdiocb->bpl_dmabuf = NULL;
}
lpfc_sli_release_iocbq(phba, cmdiocb);
}
/**
* lpfc_ct_reject_event - Issue reject for unhandled CT MIB commands
* @ndlp: pointer to a node-list data structure.
* @ct_req: pointer to the CT request data structure.
* @ulp_context: context of received UNSOL CT command
* @ox_id: ox_id of the UNSOL CT command
*
* This routine is invoked by the lpfc_ct_handle_mibreq routine for sending
* a reject response. Reject response is sent for the unhandled commands.
**/
static void
lpfc_ct_reject_event(struct lpfc_nodelist *ndlp,
struct lpfc_sli_ct_request *ct_req,
u16 ulp_context, u16 ox_id)
{
struct lpfc_vport *vport = ndlp->vport;
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli_ct_request *ct_rsp;
struct lpfc_iocbq *cmdiocbq = NULL;
struct lpfc_dmabuf *bmp = NULL;
struct lpfc_dmabuf *mp = NULL;
struct ulp_bde64 *bpl;
u8 rc = 0;
u32 tmo;
/* fill in BDEs for command */
mp = kmalloc(sizeof(*mp), GFP_KERNEL);
if (!mp) {
rc = 1;
goto ct_exit;
}
mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp->phys);
if (!mp->virt) {
rc = 2;
goto ct_free_mp;
}
/* Allocate buffer for Buffer ptr list */
bmp = kmalloc(sizeof(*bmp), GFP_KERNEL);
if (!bmp) {
rc = 3;
goto ct_free_mpvirt;
}
bmp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &bmp->phys);
if (!bmp->virt) {
rc = 4;
goto ct_free_bmp;
}
INIT_LIST_HEAD(&mp->list);
INIT_LIST_HEAD(&bmp->list);
bpl = (struct ulp_bde64 *)bmp->virt;
memset(bpl, 0, sizeof(struct ulp_bde64));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys));
bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys));
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
bpl->tus.f.bdeSize = (LPFC_CT_PREAMBLE - 4);
bpl->tus.w = le32_to_cpu(bpl->tus.w);
ct_rsp = (struct lpfc_sli_ct_request *)mp->virt;
memset(ct_rsp, 0, sizeof(struct lpfc_sli_ct_request));
ct_rsp->RevisionId.bits.Revision = SLI_CT_REVISION;
ct_rsp->RevisionId.bits.InId = 0;
ct_rsp->FsType = ct_req->FsType;
ct_rsp->FsSubType = ct_req->FsSubType;
ct_rsp->CommandResponse.bits.Size = 0;
ct_rsp->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CT_RESPONSE_FS_RJT);
ct_rsp->ReasonCode = SLI_CT_REQ_NOT_SUPPORTED;
ct_rsp->Explanation = SLI_CT_NO_ADDITIONAL_EXPL;
cmdiocbq = lpfc_sli_get_iocbq(phba);
if (!cmdiocbq) {
rc = 5;
goto ct_free_bmpvirt;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
lpfc_sli_prep_xmit_seq64(phba, cmdiocbq, bmp,
phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
ox_id, 1, FC_RCTL_DD_SOL_CTL, 1,
CMD_XMIT_SEQUENCE64_WQE);
} else {
lpfc_sli_prep_xmit_seq64(phba, cmdiocbq, bmp, 0, ulp_context, 1,
FC_RCTL_DD_SOL_CTL, 1,
CMD_XMIT_SEQUENCE64_CX);
}
/* Save for completion so we can release these resources */
cmdiocbq->rsp_dmabuf = mp;
cmdiocbq->bpl_dmabuf = bmp;
cmdiocbq->cmd_cmpl = lpfc_ct_unsol_cmpl;
tmo = (3 * phba->fc_ratov);
cmdiocbq->retry = 0;
cmdiocbq->vport = vport;
cmdiocbq->drvrTimeout = tmo + LPFC_DRVR_TIMEOUT;
cmdiocbq->ndlp = lpfc_nlp_get(ndlp);
if (!cmdiocbq->ndlp)
goto ct_no_ndlp;
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0);
if (rc) {
lpfc_nlp_put(ndlp);
goto ct_no_ndlp;
}
return;
ct_no_ndlp:
rc = 6;
lpfc_sli_release_iocbq(phba, cmdiocbq);
ct_free_bmpvirt:
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
ct_free_bmp:
kfree(bmp);
ct_free_mpvirt:
lpfc_mbuf_free(phba, mp->virt, mp->phys);
ct_free_mp:
kfree(mp);
ct_exit:
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
"6440 Unsol CT: Rsp err %d Data: x%x\n",
rc, vport->fc_flag);
}
/**
* lpfc_ct_handle_mibreq - Process an unsolicited CT MIB request data buffer
* @phba: pointer to lpfc hba data structure.
* @ctiocbq: pointer to lpfc CT command iocb data structure.
*
* This routine is used for processing the IOCB associated with a unsolicited
* CT MIB request. It first determines whether there is an existing ndlp that
* matches the DID from the unsolicited IOCB. If not, it will return.
**/
static void
lpfc_ct_handle_mibreq(struct lpfc_hba *phba, struct lpfc_iocbq *ctiocbq)
{
struct lpfc_sli_ct_request *ct_req;
struct lpfc_nodelist *ndlp = NULL;
struct lpfc_vport *vport = ctiocbq->vport;
u32 ulp_status = get_job_ulpstatus(phba, ctiocbq);
u32 ulp_word4 = get_job_word4(phba, ctiocbq);
u32 did;
u16 mi_cmd;
did = bf_get(els_rsp64_sid, &ctiocbq->wqe.xmit_els_rsp);
if (ulp_status) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"6438 Unsol CT: status:x%x/x%x did : x%x\n",
ulp_status, ulp_word4, did);
return;
}
/* Ignore traffic received during vport shutdown */
if (vport->fc_flag & FC_UNLOADING)
return;
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"6439 Unsol CT: NDLP Not Found for DID : x%x",
did);
return;
}
ct_req = (struct lpfc_sli_ct_request *)ctiocbq->cmd_dmabuf->virt;
mi_cmd = be16_to_cpu(ct_req->CommandResponse.bits.CmdRsp);
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"6442 : MI Cmd : x%x Not Supported\n", mi_cmd);
lpfc_ct_reject_event(ndlp, ct_req,
bf_get(wqe_ctxt_tag,
&ctiocbq->wqe.xmit_els_rsp.wqe_com),
bf_get(wqe_rcvoxid,
&ctiocbq->wqe.xmit_els_rsp.wqe_com));
}
/**
* lpfc_ct_unsol_event - Process an unsolicited event from a ct sli ring
* @phba: pointer to lpfc hba data structure.
* @pring: pointer to a SLI ring.
* @ctiocbq: pointer to lpfc ct iocb data structure.
*
* This routine is used to process an unsolicited event received from a SLI
* (Service Level Interface) ring. The actual processing of the data buffer
* associated with the unsolicited event is done by invoking appropriate routine
* after properly set up the iocb buffer from the SLI ring on which the
* unsolicited event was received.
**/
void
lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *ctiocbq)
{
struct lpfc_dmabuf *mp = NULL;
IOCB_t *icmd = &ctiocbq->iocb;
int i;
struct lpfc_iocbq *iocbq;
struct lpfc_iocbq *iocb;
dma_addr_t dma_addr;
uint32_t size;
struct list_head head;
struct lpfc_sli_ct_request *ct_req;
struct lpfc_dmabuf *bdeBuf1 = ctiocbq->cmd_dmabuf;
struct lpfc_dmabuf *bdeBuf2 = ctiocbq->bpl_dmabuf;
u32 status, parameter, bde_count = 0;
struct lpfc_wcqe_complete *wcqe_cmpl = NULL;
ctiocbq->cmd_dmabuf = NULL;
ctiocbq->rsp_dmabuf = NULL;
ctiocbq->bpl_dmabuf = NULL;
wcqe_cmpl = &ctiocbq->wcqe_cmpl;
status = get_job_ulpstatus(phba, ctiocbq);
parameter = get_job_word4(phba, ctiocbq);
if (phba->sli_rev == LPFC_SLI_REV4)
bde_count = wcqe_cmpl->word3;
else
bde_count = icmd->ulpBdeCount;
if (unlikely(status == IOSTAT_NEED_BUFFER)) {
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
} else if ((status == IOSTAT_LOCAL_REJECT) &&
((parameter & IOERR_PARAM_MASK) ==
IOERR_RCV_BUFFER_WAITING)) {
/* Not enough posted buffers; Try posting more buffers */
phba->fc_stat.NoRcvBuf++;
if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
lpfc_sli3_post_buffer(phba, pring, 2);
return;
}
/* If there are no BDEs associated
* with this IOCB, there is nothing to do.
*/
if (bde_count == 0)
return;
ctiocbq->cmd_dmabuf = bdeBuf1;
if (bde_count == 2)
ctiocbq->bpl_dmabuf = bdeBuf2;
ct_req = (struct lpfc_sli_ct_request *)ctiocbq->cmd_dmabuf->virt;
if (ct_req->FsType == SLI_CT_MANAGEMENT_SERVICE &&
ct_req->FsSubType == SLI_CT_MIB_Subtypes) {
lpfc_ct_handle_mibreq(phba, ctiocbq);
} else {
if (!lpfc_bsg_ct_unsol_event(phba, pring, ctiocbq))
return;
}
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
INIT_LIST_HEAD(&head);
list_add_tail(&head, &ctiocbq->list);
list_for_each_entry(iocb, &head, list) {
if (phba->sli_rev == LPFC_SLI_REV4)
bde_count = iocb->wcqe_cmpl.word3;
else
bde_count = iocb->iocb.ulpBdeCount;
if (!bde_count)
continue;
bdeBuf1 = iocb->cmd_dmabuf;
iocb->cmd_dmabuf = NULL;
if (phba->sli_rev == LPFC_SLI_REV4)
size = iocb->wqe.gen_req.bde.tus.f.bdeSize;
else
size = iocb->iocb.un.cont64[0].tus.f.bdeSize;
lpfc_ct_unsol_buffer(phba, ctiocbq, bdeBuf1, size);
lpfc_in_buf_free(phba, bdeBuf1);
if (bde_count == 2) {
bdeBuf2 = iocb->bpl_dmabuf;
iocb->bpl_dmabuf = NULL;
if (phba->sli_rev == LPFC_SLI_REV4)
size = iocb->unsol_rcv_len;
else
size = iocb->iocb.unsli3.rcvsli3.bde2.tus.f.bdeSize;
lpfc_ct_unsol_buffer(phba, ctiocbq, bdeBuf2,
size);
lpfc_in_buf_free(phba, bdeBuf2);
}
}
list_del(&head);
} else {
INIT_LIST_HEAD(&head);
list_add_tail(&head, &ctiocbq->list);
list_for_each_entry(iocbq, &head, list) {
icmd = &iocbq->iocb;
if (icmd->ulpBdeCount == 0)
lpfc_ct_unsol_buffer(phba, iocbq, NULL, 0);
for (i = 0; i < icmd->ulpBdeCount; i++) {
dma_addr = getPaddr(icmd->un.cont64[i].addrHigh,
icmd->un.cont64[i].addrLow);
mp = lpfc_sli_ringpostbuf_get(phba, pring,
dma_addr);
size = icmd->un.cont64[i].tus.f.bdeSize;
lpfc_ct_unsol_buffer(phba, iocbq, mp, size);
lpfc_in_buf_free(phba, mp);
}
lpfc_sli3_post_buffer(phba, pring, i);
}
list_del(&head);
}
}
/**
* lpfc_ct_handle_unsol_abort - ct upper level protocol abort handler
* @phba: Pointer to HBA context object.
* @dmabuf: pointer to a dmabuf that describes the FC sequence
*
* This function serves as the upper level protocol abort handler for CT
* protocol.
*
* Return 1 if abort has been handled, 0 otherwise.
**/
int
lpfc_ct_handle_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf)
{
int handled;
/* CT upper level goes through BSG */
handled = lpfc_bsg_ct_unsol_abort(phba, dmabuf);
return handled;
}
static void
lpfc_free_ct_rsp(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist)
{
struct lpfc_dmabuf *mlast, *next_mlast;
list_for_each_entry_safe(mlast, next_mlast, &mlist->list, list) {
list_del(&mlast->list);
lpfc_mbuf_free(phba, mlast->virt, mlast->phys);
kfree(mlast);
}
lpfc_mbuf_free(phba, mlist->virt, mlist->phys);
kfree(mlist);
return;
}
static struct lpfc_dmabuf *
lpfc_alloc_ct_rsp(struct lpfc_hba *phba, __be16 cmdcode, struct ulp_bde64 *bpl,
uint32_t size, int *entries)
{
struct lpfc_dmabuf *mlist = NULL;
struct lpfc_dmabuf *mp;
int cnt, i = 0;
/* We get chunks of FCELSSIZE */
cnt = size > FCELSSIZE ? FCELSSIZE: size;
while (size) {
/* Allocate buffer for rsp payload */
mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!mp) {
if (mlist)
lpfc_free_ct_rsp(phba, mlist);
return NULL;
}
INIT_LIST_HEAD(&mp->list);
if (be16_to_cpu(cmdcode) == SLI_CTNS_GID_FT ||
be16_to_cpu(cmdcode) == SLI_CTNS_GFF_ID)
mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
else
mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys));
if (!mp->virt) {
kfree(mp);
if (mlist)
lpfc_free_ct_rsp(phba, mlist);
return NULL;
}
/* Queue it to a linked list */
if (!mlist)
mlist = mp;
else
list_add_tail(&mp->list, &mlist->list);
bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
/* build buffer ptr list for IOCB */
bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys) );
bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys) );
bpl->tus.f.bdeSize = (uint16_t) cnt;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
bpl++;
i++;
size -= cnt;
}
*entries = i;
return mlist;
}
int
lpfc_ct_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *ctiocb)
{
struct lpfc_dmabuf *buf_ptr;
/* IOCBQ job structure gets cleaned during release. Just release
* the dma buffers here.
*/
if (ctiocb->cmd_dmabuf) {
buf_ptr = ctiocb->cmd_dmabuf;
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
ctiocb->cmd_dmabuf = NULL;
}
if (ctiocb->rsp_dmabuf) {
lpfc_free_ct_rsp(phba, ctiocb->rsp_dmabuf);
ctiocb->rsp_dmabuf = NULL;
}
if (ctiocb->bpl_dmabuf) {
buf_ptr = ctiocb->bpl_dmabuf;
lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
kfree(buf_ptr);
ctiocb->bpl_dmabuf = NULL;
}
lpfc_sli_release_iocbq(phba, ctiocb);
return 0;
}
/*
* lpfc_gen_req - Build and issue a GEN_REQUEST command to the SLI Layer
* @vport: pointer to a host virtual N_Port data structure.
* @bmp: Pointer to BPL for SLI command
* @inp: Pointer to data buffer for response data.
* @outp: Pointer to data buffer that hold the CT command.
* @cmpl: completion routine to call when command completes
* @ndlp: Destination NPort nodelist entry
*
* This function as the final part for issuing a CT command.
*/
static int
lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
struct lpfc_dmabuf *inp, struct lpfc_dmabuf *outp,
void (*cmpl)(struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *),
struct lpfc_nodelist *ndlp, uint32_t event_tag, uint32_t num_entry,
uint32_t tmo, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_iocbq *geniocb;
int rc;
u16 ulp_context;
/* Allocate buffer for command iocb */
geniocb = lpfc_sli_get_iocbq(phba);
if (geniocb == NULL)
return 1;
/* Update the num_entry bde count */
geniocb->num_bdes = num_entry;
geniocb->bpl_dmabuf = bmp;
/* Save for completion so we can release these resources */
geniocb->cmd_dmabuf = inp;
geniocb->rsp_dmabuf = outp;
geniocb->event_tag = event_tag;
if (!tmo) {
/* FC spec states we need 3 * ratov for CT requests */
tmo = (3 * phba->fc_ratov);
}
if (phba->sli_rev == LPFC_SLI_REV4)
ulp_context = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
else
ulp_context = ndlp->nlp_rpi;
lpfc_sli_prep_gen_req(phba, geniocb, bmp, ulp_context, num_entry, tmo);
/* Issue GEN REQ IOCB for NPORT <did> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0119 Issue GEN REQ IOCB to NPORT x%x "
"Data: x%x x%x\n",
ndlp->nlp_DID, geniocb->iotag,
vport->port_state);
geniocb->cmd_cmpl = cmpl;
geniocb->drvrTimeout = tmo + LPFC_DRVR_TIMEOUT;
geniocb->vport = vport;
geniocb->retry = retry;
geniocb->ndlp = lpfc_nlp_get(ndlp);
if (!geniocb->ndlp)
goto out;
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, geniocb, 0);
if (rc == IOCB_ERROR) {
lpfc_nlp_put(ndlp);
goto out;
}
return 0;
out:
lpfc_sli_release_iocbq(phba, geniocb);
return 1;
}
/*
* lpfc_ct_cmd - Build and issue a CT command
* @vport: pointer to a host virtual N_Port data structure.
* @inmp: Pointer to data buffer for response data.
* @bmp: Pointer to BPL for SLI command
* @ndlp: Destination NPort nodelist entry
* @cmpl: completion routine to call when command completes
*
* This function is called for issuing a CT command.
*/
static int
lpfc_ct_cmd(struct lpfc_vport *vport, struct lpfc_dmabuf *inmp,
struct lpfc_dmabuf *bmp, struct lpfc_nodelist *ndlp,
void (*cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *),
uint32_t rsp_size, uint8_t retry)
{
struct lpfc_hba *phba = vport->phba;
struct ulp_bde64 *bpl = (struct ulp_bde64 *) bmp->virt;
struct lpfc_dmabuf *outmp;
int cnt = 0, status;
__be16 cmdcode = ((struct lpfc_sli_ct_request *)inmp->virt)->
CommandResponse.bits.CmdRsp;
bpl++; /* Skip past ct request */
/* Put buffer(s) for ct rsp in bpl */
outmp = lpfc_alloc_ct_rsp(phba, cmdcode, bpl, rsp_size, &cnt);
if (!outmp)
return -ENOMEM;
/*
* Form the CT IOCB. The total number of BDEs in this IOCB
* is the single command plus response count from
* lpfc_alloc_ct_rsp.
*/
cnt += 1;
status = lpfc_gen_req(vport, bmp, inmp, outmp, cmpl, ndlp,
phba->fc_eventTag, cnt, 0, retry);
if (status) {
lpfc_free_ct_rsp(phba, outmp);
return -ENOMEM;
}
return 0;
}
struct lpfc_vport *
lpfc_find_vport_by_did(struct lpfc_hba *phba, uint32_t did) {
struct lpfc_vport *vport_curr;
unsigned long flags;
spin_lock_irqsave(&phba->port_list_lock, flags);
list_for_each_entry(vport_curr, &phba->port_list, listentry) {
if ((vport_curr->fc_myDID) && (vport_curr->fc_myDID == did)) {
spin_unlock_irqrestore(&phba->port_list_lock, flags);
return vport_curr;
}
}
spin_unlock_irqrestore(&phba->port_list_lock, flags);
return NULL;
}
static void
lpfc_prep_node_fc4type(struct lpfc_vport *vport, uint32_t Did, uint8_t fc4_type)
{
struct lpfc_nodelist *ndlp;
if ((vport->port_type != LPFC_NPIV_PORT) ||
!(vport->ct_flags & FC_CT_RFF_ID) || !vport->cfg_restrict_login) {
ndlp = lpfc_setup_disc_node(vport, Did);
if (ndlp) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"Parse GID_FTrsp: did:x%x flg:x%x x%x",
Did, ndlp->nlp_flag, vport->fc_flag);
/* By default, the driver expects to support FCP FC4 */
if (fc4_type == FC_TYPE_FCP)
ndlp->nlp_fc4_type |= NLP_FC4_FCP;
if (fc4_type == FC_TYPE_NVME)
ndlp->nlp_fc4_type |= NLP_FC4_NVME;
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0238 Process x%06x NameServer Rsp "
"Data: x%x x%x x%x x%x x%x\n", Did,
ndlp->nlp_flag, ndlp->nlp_fc4_type,
ndlp->nlp_state, vport->fc_flag,
vport->fc_rscn_id_cnt);
/* if ndlp needs to be discovered and prior
* state of ndlp hit devloss, change state to
* allow rediscovery.
*/
if (ndlp->nlp_flag & NLP_NPR_2B_DISC &&
ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_NPR_NODE);
}
} else {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"Skip1 GID_FTrsp: did:x%x flg:x%x cnt:%d",
Did, vport->fc_flag, vport->fc_rscn_id_cnt);
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0239 Skip x%06x NameServer Rsp "
"Data: x%x x%x x%px\n",
Did, vport->fc_flag,
vport->fc_rscn_id_cnt, ndlp);
}
} else {
if (!(vport->fc_flag & FC_RSCN_MODE) ||
lpfc_rscn_payload_check(vport, Did)) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"Query GID_FTrsp: did:x%x flg:x%x cnt:%d",
Did, vport->fc_flag, vport->fc_rscn_id_cnt);
/*
* This NPortID was previously a FCP/NVMe target,
* Don't even bother to send GFF_ID.
*/
ndlp = lpfc_findnode_did(vport, Did);
if (ndlp &&
(ndlp->nlp_type &
(NLP_FCP_TARGET | NLP_NVME_TARGET))) {
if (fc4_type == FC_TYPE_FCP)
ndlp->nlp_fc4_type |= NLP_FC4_FCP;
if (fc4_type == FC_TYPE_NVME)
ndlp->nlp_fc4_type |= NLP_FC4_NVME;
lpfc_setup_disc_node(vport, Did);
} else if (lpfc_ns_cmd(vport, SLI_CTNS_GFF_ID,
0, Did) == 0)
vport->num_disc_nodes++;
else
lpfc_setup_disc_node(vport, Did);
} else {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"Skip2 GID_FTrsp: did:x%x flg:x%x cnt:%d",
Did, vport->fc_flag, vport->fc_rscn_id_cnt);
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0245 Skip x%06x NameServer Rsp "
"Data: x%x x%x\n", Did,
vport->fc_flag,
vport->fc_rscn_id_cnt);
}
}
}
static void
lpfc_ns_rsp_audit_did(struct lpfc_vport *vport, uint32_t Did, uint8_t fc4_type)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp = NULL;
char *str;
if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT)
str = "GID_FT";
else
str = "GID_PT";
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6430 Process %s rsp for %08x type %x %s %s\n",
str, Did, fc4_type,
(fc4_type == FC_TYPE_FCP) ? "FCP" : " ",
(fc4_type == FC_TYPE_NVME) ? "NVME" : " ");
/*
* To conserve rpi's, filter out addresses for other
* vports on the same physical HBAs.
*/
if (Did != vport->fc_myDID &&
(!lpfc_find_vport_by_did(phba, Did) ||
vport->cfg_peer_port_login)) {
if (!phba->nvmet_support) {
/* FCPI/NVMEI path. Process Did */
lpfc_prep_node_fc4type(vport, Did, fc4_type);
return;
}
/* NVMET path. NVMET only cares about NVMEI nodes. */
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_type != NLP_NVME_INITIATOR ||
ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
continue;
spin_lock_irq(&ndlp->lock);
if (ndlp->nlp_DID == Did)
ndlp->nlp_flag &= ~NLP_NVMET_RECOV;
else
ndlp->nlp_flag |= NLP_NVMET_RECOV;
spin_unlock_irq(&ndlp->lock);
}
}
}
static int
lpfc_ns_rsp(struct lpfc_vport *vport, struct lpfc_dmabuf *mp, uint8_t fc4_type,
uint32_t Size)
{
struct lpfc_sli_ct_request *Response =
(struct lpfc_sli_ct_request *) mp->virt;
struct lpfc_dmabuf *mlast, *next_mp;
uint32_t *ctptr = (uint32_t *) & Response->un.gid.PortType;
uint32_t Did, CTentry;
int Cnt;
struct list_head head;
struct lpfc_nodelist *ndlp = NULL;
lpfc_set_disctmo(vport);
vport->num_disc_nodes = 0;
vport->fc_ns_retry = 0;
list_add_tail(&head, &mp->list);
list_for_each_entry_safe(mp, next_mp, &head, list) {
mlast = mp;
Cnt = Size > FCELSSIZE ? FCELSSIZE : Size;
Size -= Cnt;
if (!ctptr) {
ctptr = (uint32_t *) mlast->virt;
} else
Cnt -= 16; /* subtract length of CT header */
/* Loop through entire NameServer list of DIDs */
while (Cnt >= sizeof(uint32_t)) {
/* Get next DID from NameServer List */
CTentry = *ctptr++;
Did = ((be32_to_cpu(CTentry)) & Mask_DID);
lpfc_ns_rsp_audit_did(vport, Did, fc4_type);
if (CTentry & (cpu_to_be32(SLI_CT_LAST_ENTRY)))
goto nsout1;
Cnt -= sizeof(uint32_t);
}
ctptr = NULL;
}
/* All GID_FT entries processed. If the driver is running in
* in target mode, put impacted nodes into recovery and drop
* the RPI to flush outstanding IO.
*/
if (vport->phba->nvmet_support) {
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (!(ndlp->nlp_flag & NLP_NVMET_RECOV))
continue;
lpfc_disc_state_machine(vport, ndlp, NULL,
NLP_EVT_DEVICE_RECOVERY);
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NVMET_RECOV;
spin_unlock_irq(&ndlp->lock);
}
}
nsout1:
list_del(&head);
return 0;
}
static void
lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_dmabuf *outp;
struct lpfc_dmabuf *inp;
struct lpfc_sli_ct_request *CTrsp;
struct lpfc_sli_ct_request *CTreq;
struct lpfc_nodelist *ndlp;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
int rc, type;
/* First save ndlp, before we overwrite it */
ndlp = cmdiocb->ndlp;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->rsp_iocb = rspiocb;
inp = cmdiocb->cmd_dmabuf;
outp = cmdiocb->rsp_dmabuf;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"GID_FT cmpl: status:x%x/x%x rtry:%d",
ulp_status, ulp_word4, vport->fc_ns_retry);
/* Ignore response if link flipped after this request was made */
if (cmdiocb->event_tag != phba->fc_eventTag) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"9043 Event tag mismatch. Ignoring NS rsp\n");
goto out;
}
/* Don't bother processing response if vport is being torn down. */
if (vport->load_flag & FC_UNLOADING) {
if (vport->fc_flag & FC_RSCN_MODE)
lpfc_els_flush_rscn(vport);
goto out;
}
if (lpfc_els_chk_latt(vport)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0216 Link event during NS query\n");
if (vport->fc_flag & FC_RSCN_MODE)
lpfc_els_flush_rscn(vport);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
goto out;
}
if (lpfc_error_lost_link(vport, ulp_status, ulp_word4)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0226 NS query failed due to link event: "
"ulp_status x%x ulp_word4 x%x fc_flag x%x "
"port_state x%x gidft_inp x%x\n",
ulp_status, ulp_word4, vport->fc_flag,
vport->port_state, vport->gidft_inp);
if (vport->fc_flag & FC_RSCN_MODE)
lpfc_els_flush_rscn(vport);
if (vport->gidft_inp)
vport->gidft_inp--;
goto out;
}
spin_lock_irq(shost->host_lock);
if (vport->fc_flag & FC_RSCN_DEFERRED) {
vport->fc_flag &= ~FC_RSCN_DEFERRED;
spin_unlock_irq(shost->host_lock);
/* This is a GID_FT completing so the gidft_inp counter was
* incremented before the GID_FT was issued to the wire.
*/
if (vport->gidft_inp)
vport->gidft_inp--;
/*
* Skip processing the NS response
* Re-issue the NS cmd
*/
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0151 Process Deferred RSCN Data: x%x x%x\n",
vport->fc_flag, vport->fc_rscn_id_cnt);
lpfc_els_handle_rscn(vport);
goto out;
}
spin_unlock_irq(shost->host_lock);
if (ulp_status) {
/* Check for retry */
if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
if (ulp_status != IOSTAT_LOCAL_REJECT ||
(ulp_word4 & IOERR_PARAM_MASK) !=
IOERR_NO_RESOURCES)
vport->fc_ns_retry++;
type = lpfc_get_gidft_type(vport, cmdiocb);
if (type == 0)
goto out;
/* CT command is being retried */
rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
vport->fc_ns_retry, type);
if (rc == 0)
goto out;
else { /* Unable to send NS cmd */
if (vport->gidft_inp)
vport->gidft_inp--;
}
}
if (vport->fc_flag & FC_RSCN_MODE)
lpfc_els_flush_rscn(vport);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0257 GID_FT Query error: 0x%x 0x%x\n",
ulp_status, vport->fc_ns_retry);
} else {
/* Good status, continue checking */
CTreq = (struct lpfc_sli_ct_request *) inp->virt;
CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
if (CTrsp->CommandResponse.bits.CmdRsp ==
cpu_to_be16(SLI_CT_RESPONSE_FS_ACC)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0208 NameServer Rsp Data: x%x x%x "
"x%x x%x sz x%x\n",
vport->fc_flag,
CTreq->un.gid.Fc4Type,
vport->num_disc_nodes,
vport->gidft_inp,
get_job_data_placed(phba, rspiocb));
lpfc_ns_rsp(vport,
outp,
CTreq->un.gid.Fc4Type,
get_job_data_placed(phba, rspiocb));
} else if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_RJT) {
/* NameServer Rsp Error */
if ((CTrsp->ReasonCode == SLI_CT_UNABLE_TO_PERFORM_REQ)
&& (CTrsp->Explanation == SLI_CT_NO_FC4_TYPES)) {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY,
"0269 No NameServer Entries "
"Data: x%x x%x x%x x%x\n",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t) CTrsp->ReasonCode,
(uint32_t) CTrsp->Explanation,
vport->fc_flag);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"GID_FT no entry cmd:x%x rsn:x%x exp:x%x",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t) CTrsp->ReasonCode,
(uint32_t) CTrsp->Explanation);
} else {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY,
"0240 NameServer Rsp Error "
"Data: x%x x%x x%x x%x\n",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t) CTrsp->ReasonCode,
(uint32_t) CTrsp->Explanation,
vport->fc_flag);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"GID_FT rsp err1 cmd:x%x rsn:x%x exp:x%x",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t) CTrsp->ReasonCode,
(uint32_t) CTrsp->Explanation);
}
} else {
/* NameServer Rsp Error */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0241 NameServer Rsp Error "
"Data: x%x x%x x%x x%x\n",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t) CTrsp->ReasonCode,
(uint32_t) CTrsp->Explanation,
vport->fc_flag);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"GID_FT rsp err2 cmd:x%x rsn:x%x exp:x%x",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t) CTrsp->ReasonCode,
(uint32_t) CTrsp->Explanation);
}
if (vport->gidft_inp)
vport->gidft_inp--;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"4216 GID_FT cmpl inp %d disc %d\n",
vport->gidft_inp, vport->num_disc_nodes);
/* Link up / RSCN discovery */
if ((vport->num_disc_nodes == 0) &&
(vport->gidft_inp == 0)) {
/*
* The driver has cycled through all Nports in the RSCN payload.
* Complete the handling by cleaning up and marking the
* current driver state.
*/
if (vport->port_state >= LPFC_DISC_AUTH) {
if (vport->fc_flag & FC_RSCN_MODE) {
lpfc_els_flush_rscn(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_MODE; /* RSCN still */
spin_unlock_irq(shost->host_lock);
}
else
lpfc_els_flush_rscn(vport);
}
lpfc_disc_start(vport);
}
out:
lpfc_ct_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
return;
}
static void
lpfc_cmpl_ct_cmd_gid_pt(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_dmabuf *outp;
struct lpfc_dmabuf *inp;
struct lpfc_sli_ct_request *CTrsp;
struct lpfc_sli_ct_request *CTreq;
struct lpfc_nodelist *ndlp;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
int rc;
/* First save ndlp, before we overwrite it */
ndlp = cmdiocb->ndlp;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->rsp_iocb = rspiocb;
inp = cmdiocb->cmd_dmabuf;
outp = cmdiocb->rsp_dmabuf;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"GID_PT cmpl: status:x%x/x%x rtry:%d",
ulp_status, ulp_word4,
vport->fc_ns_retry);
/* Ignore response if link flipped after this request was made */
if (cmdiocb->event_tag != phba->fc_eventTag) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"9044 Event tag mismatch. Ignoring NS rsp\n");
goto out;
}
/* Don't bother processing response if vport is being torn down. */
if (vport->load_flag & FC_UNLOADING) {
if (vport->fc_flag & FC_RSCN_MODE)
lpfc_els_flush_rscn(vport);
goto out;
}
if (lpfc_els_chk_latt(vport)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"4108 Link event during NS query\n");
if (vport->fc_flag & FC_RSCN_MODE)
lpfc_els_flush_rscn(vport);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
goto out;
}
if (lpfc_error_lost_link(vport, ulp_status, ulp_word4)) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"4166 NS query failed due to link event: "
"ulp_status x%x ulp_word4 x%x fc_flag x%x "
"port_state x%x gidft_inp x%x\n",
ulp_status, ulp_word4, vport->fc_flag,
vport->port_state, vport->gidft_inp);
if (vport->fc_flag & FC_RSCN_MODE)
lpfc_els_flush_rscn(vport);
if (vport->gidft_inp)
vport->gidft_inp--;
goto out;
}
spin_lock_irq(shost->host_lock);
if (vport->fc_flag & FC_RSCN_DEFERRED) {
vport->fc_flag &= ~FC_RSCN_DEFERRED;
spin_unlock_irq(shost->host_lock);
/* This is a GID_PT completing so the gidft_inp counter was
* incremented before the GID_PT was issued to the wire.
*/
if (vport->gidft_inp)
vport->gidft_inp--;
/*
* Skip processing the NS response
* Re-issue the NS cmd
*/
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"4167 Process Deferred RSCN Data: x%x x%x\n",
vport->fc_flag, vport->fc_rscn_id_cnt);
lpfc_els_handle_rscn(vport);
goto out;
}
spin_unlock_irq(shost->host_lock);
if (ulp_status) {
/* Check for retry */
if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
if (ulp_status != IOSTAT_LOCAL_REJECT ||
(ulp_word4 & IOERR_PARAM_MASK) !=
IOERR_NO_RESOURCES)
vport->fc_ns_retry++;
/* CT command is being retried */
rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_PT,
vport->fc_ns_retry, GID_PT_N_PORT);
if (rc == 0)
goto out;
else { /* Unable to send NS cmd */
if (vport->gidft_inp)
vport->gidft_inp--;
}
}
if (vport->fc_flag & FC_RSCN_MODE)
lpfc_els_flush_rscn(vport);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"4103 GID_FT Query error: 0x%x 0x%x\n",
ulp_status, vport->fc_ns_retry);
} else {
/* Good status, continue checking */
CTreq = (struct lpfc_sli_ct_request *)inp->virt;
CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_ACC) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"4105 NameServer Rsp Data: x%x x%x "
"x%x x%x sz x%x\n",
vport->fc_flag,
CTreq->un.gid.Fc4Type,
vport->num_disc_nodes,
vport->gidft_inp,
get_job_data_placed(phba, rspiocb));
lpfc_ns_rsp(vport,
outp,
CTreq->un.gid.Fc4Type,
get_job_data_placed(phba, rspiocb));
} else if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_RJT) {
/* NameServer Rsp Error */
if ((CTrsp->ReasonCode == SLI_CT_UNABLE_TO_PERFORM_REQ)
&& (CTrsp->Explanation == SLI_CT_NO_FC4_TYPES)) {
lpfc_printf_vlog(
vport, KERN_INFO, LOG_DISCOVERY,
"4106 No NameServer Entries "
"Data: x%x x%x x%x x%x\n",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t)CTrsp->ReasonCode,
(uint32_t)CTrsp->Explanation,
vport->fc_flag);
lpfc_debugfs_disc_trc(
vport, LPFC_DISC_TRC_CT,
"GID_PT no entry cmd:x%x rsn:x%x exp:x%x",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t)CTrsp->ReasonCode,
(uint32_t)CTrsp->Explanation);
} else {
lpfc_printf_vlog(
vport, KERN_INFO, LOG_DISCOVERY,
"4107 NameServer Rsp Error "
"Data: x%x x%x x%x x%x\n",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t)CTrsp->ReasonCode,
(uint32_t)CTrsp->Explanation,
vport->fc_flag);
lpfc_debugfs_disc_trc(
vport, LPFC_DISC_TRC_CT,
"GID_PT rsp err1 cmd:x%x rsn:x%x exp:x%x",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t)CTrsp->ReasonCode,
(uint32_t)CTrsp->Explanation);
}
} else {
/* NameServer Rsp Error */
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"4109 NameServer Rsp Error "
"Data: x%x x%x x%x x%x\n",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t)CTrsp->ReasonCode,
(uint32_t)CTrsp->Explanation,
vport->fc_flag);
lpfc_debugfs_disc_trc(
vport, LPFC_DISC_TRC_CT,
"GID_PT rsp err2 cmd:x%x rsn:x%x exp:x%x",
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
(uint32_t)CTrsp->ReasonCode,
(uint32_t)CTrsp->Explanation);
}
if (vport->gidft_inp)
vport->gidft_inp--;
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6450 GID_PT cmpl inp %d disc %d\n",
vport->gidft_inp, vport->num_disc_nodes);
/* Link up / RSCN discovery */
if ((vport->num_disc_nodes == 0) &&
(vport->gidft_inp == 0)) {
/*
* The driver has cycled through all Nports in the RSCN payload.
* Complete the handling by cleaning up and marking the
* current driver state.
*/
if (vport->port_state >= LPFC_DISC_AUTH) {
if (vport->fc_flag & FC_RSCN_MODE) {
lpfc_els_flush_rscn(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_MODE; /* RSCN still */
spin_unlock_irq(shost->host_lock);
} else {
lpfc_els_flush_rscn(vport);
}
}
lpfc_disc_start(vport);
}
out:
lpfc_ct_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
static void
lpfc_cmpl_ct_cmd_gff_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_dmabuf *inp = cmdiocb->cmd_dmabuf;
struct lpfc_dmabuf *outp = cmdiocb->rsp_dmabuf;
struct lpfc_sli_ct_request *CTrsp;
int did, rc, retry;
uint8_t fbits;
struct lpfc_nodelist *ndlp = NULL, *free_ndlp = NULL;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
did = ((struct lpfc_sli_ct_request *) inp->virt)->un.gff.PortId;
did = be32_to_cpu(did);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"GFF_ID cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, did);
/* Ignore response if link flipped after this request was made */
if (cmdiocb->event_tag != phba->fc_eventTag) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"9045 Event tag mismatch. Ignoring NS rsp\n");
goto iocb_free;
}
if (ulp_status == IOSTAT_SUCCESS) {
/* Good status, continue checking */
CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
fbits = CTrsp->un.gff_acc.fbits[FCP_TYPE_FEATURE_OFFSET];
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6431 Process GFF_ID rsp for %08x "
"fbits %02x %s %s\n",
did, fbits,
(fbits & FC4_FEATURE_INIT) ? "Initiator" : " ",
(fbits & FC4_FEATURE_TARGET) ? "Target" : " ");
if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_ACC) {
if ((fbits & FC4_FEATURE_INIT) &&
!(fbits & FC4_FEATURE_TARGET)) {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY,
"0270 Skip x%x GFF "
"NameServer Rsp Data: (init) "
"x%x x%x\n", did, fbits,
vport->fc_rscn_id_cnt);
goto out;
}
}
}
else {
/* Check for retry */
if (cmdiocb->retry < LPFC_MAX_NS_RETRY) {
retry = 1;
if (ulp_status == IOSTAT_LOCAL_REJECT) {
switch ((ulp_word4 &
IOERR_PARAM_MASK)) {
case IOERR_NO_RESOURCES:
/* We don't increment the retry
* count for this case.
*/
break;
case IOERR_LINK_DOWN:
case IOERR_SLI_ABORTED:
case IOERR_SLI_DOWN:
retry = 0;
break;
default:
cmdiocb->retry++;
}
}
else
cmdiocb->retry++;
if (retry) {
/* CT command is being retried */
rc = lpfc_ns_cmd(vport, SLI_CTNS_GFF_ID,
cmdiocb->retry, did);
if (rc == 0) {
/* success */
free_ndlp = cmdiocb->ndlp;
lpfc_ct_free_iocb(phba, cmdiocb);
lpfc_nlp_put(free_ndlp);
return;
}
}
}
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0267 NameServer GFF Rsp "
"x%x Error (%d %d) Data: x%x x%x\n",
did, ulp_status, ulp_word4,
vport->fc_flag, vport->fc_rscn_id_cnt);
}
/* This is a target port, unregistered port, or the GFF_ID failed */
ndlp = lpfc_setup_disc_node(vport, did);
if (ndlp) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0242 Process x%x GFF "
"NameServer Rsp Data: x%x x%x x%x\n",
did, ndlp->nlp_flag, vport->fc_flag,
vport->fc_rscn_id_cnt);
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0243 Skip x%x GFF "
"NameServer Rsp Data: x%x x%x\n", did,
vport->fc_flag, vport->fc_rscn_id_cnt);
}
out:
/* Link up / RSCN discovery */
if (vport->num_disc_nodes)
vport->num_disc_nodes--;
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6451 GFF_ID cmpl inp %d disc %d\n",
vport->gidft_inp, vport->num_disc_nodes);
if (vport->num_disc_nodes == 0) {
/*
* The driver has cycled through all Nports in the RSCN payload.
* Complete the handling by cleaning up and marking the
* current driver state.
*/
if (vport->port_state >= LPFC_DISC_AUTH) {
if (vport->fc_flag & FC_RSCN_MODE) {
lpfc_els_flush_rscn(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_RSCN_MODE; /* RSCN still */
spin_unlock_irq(shost->host_lock);
}
else
lpfc_els_flush_rscn(vport);
}
lpfc_disc_start(vport);
}
iocb_free:
free_ndlp = cmdiocb->ndlp;
lpfc_ct_free_iocb(phba, cmdiocb);
lpfc_nlp_put(free_ndlp);
return;
}
static void
lpfc_cmpl_ct_cmd_gft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_dmabuf *inp = cmdiocb->cmd_dmabuf;
struct lpfc_dmabuf *outp = cmdiocb->rsp_dmabuf;
struct lpfc_sli_ct_request *CTrsp;
int did;
struct lpfc_nodelist *ndlp = NULL;
struct lpfc_nodelist *ns_ndlp = cmdiocb->ndlp;
uint32_t fc4_data_0, fc4_data_1;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
did = ((struct lpfc_sli_ct_request *)inp->virt)->un.gft.PortId;
did = be32_to_cpu(did);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"GFT_ID cmpl: status:x%x/x%x did:x%x",
ulp_status, ulp_word4, did);
/* Ignore response if link flipped after this request was made */
if ((uint32_t)cmdiocb->event_tag != phba->fc_eventTag) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"9046 Event tag mismatch. Ignoring NS rsp\n");
goto out;
}
if (ulp_status == IOSTAT_SUCCESS) {
/* Good status, continue checking */
CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
fc4_data_0 = be32_to_cpu(CTrsp->un.gft_acc.fc4_types[0]);
fc4_data_1 = be32_to_cpu(CTrsp->un.gft_acc.fc4_types[1]);
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6432 Process GFT_ID rsp for %08x "
"Data %08x %08x %s %s\n",
did, fc4_data_0, fc4_data_1,
(fc4_data_0 & LPFC_FC4_TYPE_BITMASK) ?
"FCP" : " ",
(fc4_data_1 & LPFC_FC4_TYPE_BITMASK) ?
"NVME" : " ");
/* Lookup the NPort_ID queried in the GFT_ID and find the
* driver's local node. It's an error if the driver
* doesn't have one.
*/
ndlp = lpfc_findnode_did(vport, did);
if (ndlp) {
/* The bitmask value for FCP and NVME FCP types is
* the same because they are 32 bits distant from
* each other in word0 and word0.
*/
if (fc4_data_0 & LPFC_FC4_TYPE_BITMASK)
ndlp->nlp_fc4_type |= NLP_FC4_FCP;
if (fc4_data_1 & LPFC_FC4_TYPE_BITMASK)
ndlp->nlp_fc4_type |= NLP_FC4_NVME;
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY | LOG_NODE,
"3064 Setting ndlp x%px, DID x%06x "
"with FC4 x%08x, Data: x%08x x%08x "
"%d\n",
ndlp, did, ndlp->nlp_fc4_type,
FC_TYPE_FCP, FC_TYPE_NVME,
ndlp->nlp_state);
if (ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE &&
ndlp->nlp_fc4_type) {
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
/* This is a fabric topology so if discovery
* started with an unsolicited PLOGI, don't
* send a PRLI. Targets don't issue PLOGI or
* PRLI when acting as a target. Likely this is
* an initiator function.
*/
if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) {
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_PRLI_ISSUE);
lpfc_issue_els_prli(vport, ndlp, 0);
}
} else if (!ndlp->nlp_fc4_type) {
/* If fc4 type is still unknown, then LOGO */
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY | LOG_NODE,
"6443 Sending LOGO ndlp x%px,"
"DID x%06x with fc4_type: "
"x%08x, state: %d\n",
ndlp, did, ndlp->nlp_fc4_type,
ndlp->nlp_state);
lpfc_issue_els_logo(vport, ndlp, 0);
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
lpfc_nlp_set_state(vport, ndlp,
NLP_STE_NPR_NODE);
}
}
} else
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"3065 GFT_ID failed x%08x\n", ulp_status);
out:
lpfc_ct_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ns_ndlp);
}
static void
lpfc_cmpl_ct(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_dmabuf *inp;
struct lpfc_dmabuf *outp;
struct lpfc_sli_ct_request *CTrsp;
struct lpfc_nodelist *ndlp;
int cmdcode, rc;
uint8_t retry;
uint32_t latt;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
/* First save ndlp, before we overwrite it */
ndlp = cmdiocb->ndlp;
/* we pass cmdiocb to state machine which needs rspiocb as well */
cmdiocb->rsp_iocb = rspiocb;
inp = cmdiocb->cmd_dmabuf;
outp = cmdiocb->rsp_dmabuf;
cmdcode = be16_to_cpu(((struct lpfc_sli_ct_request *) inp->virt)->
CommandResponse.bits.CmdRsp);
CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
latt = lpfc_els_chk_latt(vport);
/* RFT request completes status <ulp_status> CmdRsp <CmdRsp> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0209 CT Request completes, latt %d, "
"ulp_status x%x CmdRsp x%x, Context x%x, Tag x%x\n",
latt, ulp_status,
be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp),
get_job_ulpcontext(phba, cmdiocb), cmdiocb->iotag);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"CT cmd cmpl: status:x%x/x%x cmd:x%x",
ulp_status, ulp_word4, cmdcode);
if (ulp_status) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0268 NS cmd x%x Error (x%x x%x)\n",
cmdcode, ulp_status, ulp_word4);
if (ulp_status == IOSTAT_LOCAL_REJECT &&
(((ulp_word4 & IOERR_PARAM_MASK) ==
IOERR_SLI_DOWN) ||
((ulp_word4 & IOERR_PARAM_MASK) ==
IOERR_SLI_ABORTED)))
goto out;
retry = cmdiocb->retry;
if (retry >= LPFC_MAX_NS_RETRY)
goto out;
retry++;
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0250 Retrying NS cmd %x\n", cmdcode);
rc = lpfc_ns_cmd(vport, cmdcode, retry, 0);
if (rc == 0)
goto out;
}
out:
lpfc_ct_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
return;
}
static void
lpfc_cmpl_ct_cmd_rft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ulp_status == IOSTAT_SUCCESS) {
struct lpfc_dmabuf *outp;
struct lpfc_sli_ct_request *CTrsp;
outp = cmdiocb->rsp_dmabuf;
CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_ACC)
vport->ct_flags |= FC_CT_RFT_ID;
}
lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
return;
}
static void
lpfc_cmpl_ct_cmd_rnn_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ulp_status == IOSTAT_SUCCESS) {
struct lpfc_dmabuf *outp;
struct lpfc_sli_ct_request *CTrsp;
outp = cmdiocb->rsp_dmabuf;
CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_ACC)
vport->ct_flags |= FC_CT_RNN_ID;
}
lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
return;
}
static void
lpfc_cmpl_ct_cmd_rspn_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ulp_status == IOSTAT_SUCCESS) {
struct lpfc_dmabuf *outp;
struct lpfc_sli_ct_request *CTrsp;
outp = cmdiocb->rsp_dmabuf;
CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_ACC)
vport->ct_flags |= FC_CT_RSPN_ID;
}
lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
return;
}
static void
lpfc_cmpl_ct_cmd_rsnn_nn(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ulp_status == IOSTAT_SUCCESS) {
struct lpfc_dmabuf *outp;
struct lpfc_sli_ct_request *CTrsp;
outp = cmdiocb->rsp_dmabuf;
CTrsp = (struct lpfc_sli_ct_request *) outp->virt;
if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_ACC)
vport->ct_flags |= FC_CT_RSNN_NN;
}
lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
return;
}
static void
lpfc_cmpl_ct_cmd_da_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
/* even if it fails we will act as though it succeeded. */
vport->ct_flags = 0;
lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
return;
}
static void
lpfc_cmpl_ct_cmd_rff_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
if (ulp_status == IOSTAT_SUCCESS) {
struct lpfc_dmabuf *outp;
struct lpfc_sli_ct_request *CTrsp;
outp = cmdiocb->rsp_dmabuf;
CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
if (be16_to_cpu(CTrsp->CommandResponse.bits.CmdRsp) ==
SLI_CT_RESPONSE_FS_ACC)
vport->ct_flags |= FC_CT_RFF_ID;
}
lpfc_cmpl_ct(phba, cmdiocb, rspiocb);
return;
}
/*
* Although the symbolic port name is thought to be an integer
* as of January 18, 2016, leave it as a string until more of
* the record state becomes defined.
*/
int
lpfc_vport_symbolic_port_name(struct lpfc_vport *vport, char *symbol,
size_t size)
{
int n;
/*
* Use the lpfc board number as the Symbolic Port
* Name object. NPIV is not in play so this integer
* value is sufficient and unique per FC-ID.
*/
n = scnprintf(symbol, size, "%d", vport->phba->brd_no);
return n;
}
int
lpfc_vport_symbolic_node_name(struct lpfc_vport *vport, char *symbol,
size_t size)
{
char fwrev[FW_REV_STR_SIZE] = {0};
char tmp[MAXHOSTNAMELEN] = {0};
memset(symbol, 0, size);
scnprintf(tmp, sizeof(tmp), "Emulex %s", vport->phba->ModelName);
if (strlcat(symbol, tmp, size) >= size)
goto buffer_done;
lpfc_decode_firmware_rev(vport->phba, fwrev, 0);
scnprintf(tmp, sizeof(tmp), " FV%s", fwrev);
if (strlcat(symbol, tmp, size) >= size)
goto buffer_done;
scnprintf(tmp, sizeof(tmp), " DV%s", lpfc_release_version);
if (strlcat(symbol, tmp, size) >= size)
goto buffer_done;
scnprintf(tmp, sizeof(tmp), " HN:%s", vport->phba->os_host_name);
if (strlcat(symbol, tmp, size) >= size)
goto buffer_done;
/* Note :- OS name is "Linux" */
scnprintf(tmp, sizeof(tmp), " OS:%s", init_utsname()->sysname);
strlcat(symbol, tmp, size);
buffer_done:
return strnlen(symbol, size);
}
static uint32_t
lpfc_find_map_node(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp, *next_ndlp;
struct Scsi_Host *shost;
uint32_t cnt = 0;
shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (ndlp->nlp_type & NLP_FABRIC)
continue;
if ((ndlp->nlp_state == NLP_STE_MAPPED_NODE) ||
(ndlp->nlp_state == NLP_STE_UNMAPPED_NODE))
cnt++;
}
spin_unlock_irq(shost->host_lock);
return cnt;
}
/*
* This routine will return the FC4 Type associated with the CT
* GID_FT command.
*/
int
lpfc_get_gidft_type(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb)
{
struct lpfc_sli_ct_request *CtReq;
struct lpfc_dmabuf *mp;
uint32_t type;
mp = cmdiocb->cmd_dmabuf;
if (mp == NULL)
return 0;
CtReq = (struct lpfc_sli_ct_request *)mp->virt;
type = (uint32_t)CtReq->un.gid.Fc4Type;
if ((type != SLI_CTPT_FCP) && (type != SLI_CTPT_NVME))
return 0;
return type;
}
/*
* lpfc_ns_cmd
* Description:
* Issue Cmd to NameServer
* SLI_CTNS_GID_FT
* LI_CTNS_RFT_ID
*/
int
lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
uint8_t retry, uint32_t context)
{
struct lpfc_nodelist * ndlp;
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *mp, *bmp;
struct lpfc_sli_ct_request *CtReq;
struct ulp_bde64 *bpl;
void (*cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *) = NULL;
uint32_t *ptr;
uint32_t rsp_size = 1024;
size_t size;
int rc = 0;
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) {
rc=1;
goto ns_cmd_exit;
}
/* fill in BDEs for command */
/* Allocate buffer for command payload */
mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!mp) {
rc=2;
goto ns_cmd_exit;
}
INIT_LIST_HEAD(&mp->list);
mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys));
if (!mp->virt) {
rc=3;
goto ns_cmd_free_mp;
}
/* Allocate buffer for Buffer ptr list */
bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
if (!bmp) {
rc=4;
goto ns_cmd_free_mpvirt;
}
INIT_LIST_HEAD(&bmp->list);
bmp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(bmp->phys));
if (!bmp->virt) {
rc=5;
goto ns_cmd_free_bmp;
}
/* NameServer Req */
lpfc_printf_vlog(vport, KERN_INFO ,LOG_DISCOVERY,
"0236 NameServer Req Data: x%x x%x x%x x%x\n",
cmdcode, vport->fc_flag, vport->fc_rscn_id_cnt,
context);
bpl = (struct ulp_bde64 *) bmp->virt;
memset(bpl, 0, sizeof(struct ulp_bde64));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys) );
bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys) );
bpl->tus.f.bdeFlags = 0;
if (cmdcode == SLI_CTNS_GID_FT)
bpl->tus.f.bdeSize = GID_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_GID_PT)
bpl->tus.f.bdeSize = GID_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_GFF_ID)
bpl->tus.f.bdeSize = GFF_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_GFT_ID)
bpl->tus.f.bdeSize = GFT_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_RFT_ID)
bpl->tus.f.bdeSize = RFT_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_RNN_ID)
bpl->tus.f.bdeSize = RNN_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_RSPN_ID)
bpl->tus.f.bdeSize = RSPN_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_RSNN_NN)
bpl->tus.f.bdeSize = RSNN_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_DA_ID)
bpl->tus.f.bdeSize = DA_ID_REQUEST_SZ;
else if (cmdcode == SLI_CTNS_RFF_ID)
bpl->tus.f.bdeSize = RFF_REQUEST_SZ;
else
bpl->tus.f.bdeSize = 0;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
CtReq = (struct lpfc_sli_ct_request *) mp->virt;
memset(CtReq, 0, sizeof(struct lpfc_sli_ct_request));
CtReq->RevisionId.bits.Revision = SLI_CT_REVISION;
CtReq->RevisionId.bits.InId = 0;
CtReq->FsType = SLI_CT_DIRECTORY_SERVICE;
CtReq->FsSubType = SLI_CT_DIRECTORY_NAME_SERVER;
CtReq->CommandResponse.bits.Size = 0;
switch (cmdcode) {
case SLI_CTNS_GID_FT:
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_GID_FT);
CtReq->un.gid.Fc4Type = context;
if (vport->port_state < LPFC_NS_QRY)
vport->port_state = LPFC_NS_QRY;
lpfc_set_disctmo(vport);
cmpl = lpfc_cmpl_ct_cmd_gid_ft;
rsp_size = FC_MAX_NS_RSP;
break;
case SLI_CTNS_GID_PT:
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_GID_PT);
CtReq->un.gid.PortType = context;
if (vport->port_state < LPFC_NS_QRY)
vport->port_state = LPFC_NS_QRY;
lpfc_set_disctmo(vport);
cmpl = lpfc_cmpl_ct_cmd_gid_pt;
rsp_size = FC_MAX_NS_RSP;
break;
case SLI_CTNS_GFF_ID:
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_GFF_ID);
CtReq->un.gff.PortId = cpu_to_be32(context);
cmpl = lpfc_cmpl_ct_cmd_gff_id;
break;
case SLI_CTNS_GFT_ID:
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_GFT_ID);
CtReq->un.gft.PortId = cpu_to_be32(context);
cmpl = lpfc_cmpl_ct_cmd_gft_id;
break;
case SLI_CTNS_RFT_ID:
vport->ct_flags &= ~FC_CT_RFT_ID;
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_RFT_ID);
CtReq->un.rft.port_id = cpu_to_be32(vport->fc_myDID);
/* Register Application Services type if vmid enabled. */
if (phba->cfg_vmid_app_header)
CtReq->un.rft.app_serv_reg =
cpu_to_be32(RFT_APP_SERV_REG);
/* Register FC4 FCP type if enabled. */
if (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)
CtReq->un.rft.fcp_reg = cpu_to_be32(RFT_FCP_REG);
/* Register NVME type if enabled. */
if (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
CtReq->un.rft.nvme_reg = cpu_to_be32(RFT_NVME_REG);
ptr = (uint32_t *)CtReq;
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6433 Issue RFT (%s %s %s): %08x %08x %08x "
"%08x %08x %08x %08x %08x\n",
CtReq->un.rft.fcp_reg ? "FCP" : " ",
CtReq->un.rft.nvme_reg ? "NVME" : " ",
CtReq->un.rft.app_serv_reg ? "APPS" : " ",
*ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3),
*(ptr + 4), *(ptr + 5),
*(ptr + 6), *(ptr + 7));
cmpl = lpfc_cmpl_ct_cmd_rft_id;
break;
case SLI_CTNS_RNN_ID:
vport->ct_flags &= ~FC_CT_RNN_ID;
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_RNN_ID);
CtReq->un.rnn.PortId = cpu_to_be32(vport->fc_myDID);
memcpy(CtReq->un.rnn.wwnn, &vport->fc_nodename,
sizeof(struct lpfc_name));
cmpl = lpfc_cmpl_ct_cmd_rnn_id;
break;
case SLI_CTNS_RSPN_ID:
vport->ct_flags &= ~FC_CT_RSPN_ID;
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_RSPN_ID);
CtReq->un.rspn.PortId = cpu_to_be32(vport->fc_myDID);
size = sizeof(CtReq->un.rspn.symbname);
CtReq->un.rspn.len =
lpfc_vport_symbolic_port_name(vport,
CtReq->un.rspn.symbname, size);
cmpl = lpfc_cmpl_ct_cmd_rspn_id;
break;
case SLI_CTNS_RSNN_NN:
vport->ct_flags &= ~FC_CT_RSNN_NN;
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_RSNN_NN);
memcpy(CtReq->un.rsnn.wwnn, &vport->fc_nodename,
sizeof(struct lpfc_name));
size = sizeof(CtReq->un.rsnn.symbname);
CtReq->un.rsnn.len =
lpfc_vport_symbolic_node_name(vport,
CtReq->un.rsnn.symbname, size);
cmpl = lpfc_cmpl_ct_cmd_rsnn_nn;
break;
case SLI_CTNS_DA_ID:
/* Implement DA_ID Nameserver request */
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_DA_ID);
CtReq->un.da_id.port_id = cpu_to_be32(vport->fc_myDID);
cmpl = lpfc_cmpl_ct_cmd_da_id;
break;
case SLI_CTNS_RFF_ID:
vport->ct_flags &= ~FC_CT_RFF_ID;
CtReq->CommandResponse.bits.CmdRsp =
cpu_to_be16(SLI_CTNS_RFF_ID);
CtReq->un.rff.PortId = cpu_to_be32(vport->fc_myDID);
CtReq->un.rff.fbits = FC4_FEATURE_INIT;
/* The driver always supports FC_TYPE_FCP. However, the
* caller can specify NVME (type x28) as well. But only
* these that FC4 type is supported.
*/
if (((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) &&
(context == FC_TYPE_NVME)) {
if ((vport == phba->pport) && phba->nvmet_support) {
CtReq->un.rff.fbits = (FC4_FEATURE_TARGET |
FC4_FEATURE_NVME_DISC);
lpfc_nvmet_update_targetport(phba);
} else {
lpfc_nvme_update_localport(vport);
}
CtReq->un.rff.type_code = context;
} else if (((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
(vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)) &&
(context == FC_TYPE_FCP))
CtReq->un.rff.type_code = context;
else
goto ns_cmd_free_bmpvirt;
ptr = (uint32_t *)CtReq;
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"6434 Issue RFF (%s): %08x %08x %08x %08x "
"%08x %08x %08x %08x\n",
(context == FC_TYPE_NVME) ? "NVME" : "FCP",
*ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3),
*(ptr + 4), *(ptr + 5),
*(ptr + 6), *(ptr + 7));
cmpl = lpfc_cmpl_ct_cmd_rff_id;
break;
}
/* The lpfc_ct_cmd/lpfc_get_req shall increment ndlp reference count
* to hold ndlp reference for the corresponding callback function.
*/
if (!lpfc_ct_cmd(vport, mp, bmp, ndlp, cmpl, rsp_size, retry)) {
/* On success, The cmpl function will free the buffers */
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"Issue CT cmd: cmd:x%x did:x%x",
cmdcode, ndlp->nlp_DID, 0);
return 0;
}
rc=6;
ns_cmd_free_bmpvirt:
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
ns_cmd_free_bmp:
kfree(bmp);
ns_cmd_free_mpvirt:
lpfc_mbuf_free(phba, mp->virt, mp->phys);
ns_cmd_free_mp:
kfree(mp);
ns_cmd_exit:
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
"0266 Issue NameServer Req x%x err %d Data: x%x x%x\n",
cmdcode, rc, vport->fc_flag, vport->fc_rscn_id_cnt);
return 1;
}
/**
* lpfc_fdmi_rprt_defer - Check for any deferred FDMI RPRT commands
* @phba: Pointer to HBA context object.
* @mask: Initial port attributes mask
*
* This function checks to see if any vports have deferred their FDMI RPRT.
* A vports RPRT may be deferred if it is issued before the primary ports
* RHBA completes.
*/
static void
lpfc_fdmi_rprt_defer(struct lpfc_hba *phba, uint32_t mask)
{
struct lpfc_vport **vports;
struct lpfc_vport *vport;
struct lpfc_nodelist *ndlp;
int i;
phba->hba_flag |= HBA_RHBA_CMPL;
vports = lpfc_create_vport_work_array(phba);
if (vports) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
vport = vports[i];
ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
if (!ndlp)
continue;
if (vport->ct_flags & FC_CT_RPRT_DEFER) {
vport->ct_flags &= ~FC_CT_RPRT_DEFER;
vport->fdmi_port_mask = mask;
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT, 0);
}
}
}
lpfc_destroy_vport_work_array(phba, vports);
}
/**
* lpfc_cmpl_ct_disc_fdmi - Handle a discovery FDMI completion
* @phba: Pointer to HBA context object.
* @cmdiocb: Pointer to the command IOCBQ.
* @rspiocb: Pointer to the response IOCBQ.
*
* This function to handle the completion of a driver initiated FDMI
* CT command issued during discovery.
*/
static void
lpfc_cmpl_ct_disc_fdmi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_dmabuf *inp = cmdiocb->cmd_dmabuf;
struct lpfc_dmabuf *outp = cmdiocb->rsp_dmabuf;
struct lpfc_sli_ct_request *CTcmd = inp->virt;
struct lpfc_sli_ct_request *CTrsp = outp->virt;
__be16 fdmi_cmd = CTcmd->CommandResponse.bits.CmdRsp;
__be16 fdmi_rsp = CTrsp->CommandResponse.bits.CmdRsp;
struct lpfc_nodelist *ndlp, *free_ndlp = NULL;
uint32_t latt, cmd, err;
u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
u32 ulp_word4 = get_job_word4(phba, rspiocb);
latt = lpfc_els_chk_latt(vport);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
"FDMI cmpl: status:x%x/x%x latt:%d",
ulp_status, ulp_word4, latt);
if (latt || ulp_status) {
/* Look for a retryable error */
if (ulp_status == IOSTAT_LOCAL_REJECT) {
switch ((ulp_word4 & IOERR_PARAM_MASK)) {
case IOERR_SLI_ABORTED:
case IOERR_SLI_DOWN:
/* Driver aborted this IO. No retry as error
* is likely Offline->Online or some adapter
* error. Recovery will try again.
*/
break;
case IOERR_ABORT_IN_PROGRESS:
case IOERR_SEQUENCE_TIMEOUT:
case IOERR_ILLEGAL_FRAME:
case IOERR_NO_RESOURCES:
case IOERR_ILLEGAL_COMMAND:
cmdiocb->retry++;
if (cmdiocb->retry >= LPFC_FDMI_MAX_RETRY)
break;
/* Retry the same FDMI command */
err = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING,
cmdiocb, 0);
if (err == IOCB_ERROR)
break;
return;
default:
break;
}
}
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0229 FDMI cmd %04x failed, latt = %d "
"ulp_status: x%x, rid x%x\n",
be16_to_cpu(fdmi_cmd), latt, ulp_status,
ulp_word4);
}
free_ndlp = cmdiocb->ndlp;
lpfc_ct_free_iocb(phba, cmdiocb);
lpfc_nlp_put(free_ndlp);
ndlp = lpfc_findnode_did(vport, FDMI_DID);
if (!ndlp)
return;
/* Check for a CT LS_RJT response */
cmd = be16_to_cpu(fdmi_cmd);
if (be16_to_cpu(fdmi_rsp) == SLI_CT_RESPONSE_FS_RJT) {
/* FDMI rsp failed */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY | LOG_ELS,
"0220 FDMI cmd failed FS_RJT Data: x%x", cmd);
/* Should we fallback to FDMI-2 / FDMI-1 ? */
switch (cmd) {
case SLI_MGMT_RHBA:
if (vport->fdmi_hba_mask == LPFC_FDMI2_HBA_ATTR) {
/* Fallback to FDMI-1 for HBA attributes */
vport->fdmi_hba_mask = LPFC_FDMI1_HBA_ATTR;
/* If HBA attributes are FDMI1, so should
* port attributes be for consistency.
*/
vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
/* Start over */
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
}
return;
case SLI_MGMT_RPRT:
if (vport->port_type != LPFC_PHYSICAL_PORT) {
ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
if (!ndlp)
return;
}
if (vport->fdmi_port_mask == LPFC_FDMI2_PORT_ATTR) {
/* Fallback to FDMI-1 */
vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
/* Start over */
lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
return;
}
if (vport->fdmi_port_mask == LPFC_FDMI2_SMART_ATTR) {
vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
/* Retry the same command */
lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
}
return;
case SLI_MGMT_RPA:
/* No retry on Vendor, RPA only done on physical port */
if (phba->link_flag & LS_CT_VEN_RPA) {
phba->link_flag &= ~LS_CT_VEN_RPA;
if (phba->cmf_active_mode == LPFC_CFG_OFF)
return;
lpfc_printf_log(phba, KERN_WARNING,
LOG_DISCOVERY | LOG_ELS,
"6460 VEN FDMI RPA RJT\n");
return;
}
if (vport->fdmi_port_mask == LPFC_FDMI2_PORT_ATTR) {
/* Fallback to FDMI-1 */
vport->fdmi_hba_mask = LPFC_FDMI1_HBA_ATTR;
vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
/* Start over */
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
return;
}
if (vport->fdmi_port_mask == LPFC_FDMI2_SMART_ATTR) {
vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
/* Retry the same command */
lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
}
return;
}
}
/*
* On success, need to cycle thru FDMI registration for discovery
* DHBA -> DPRT -> RHBA -> RPA (physical port)
* DPRT -> RPRT (vports)
*/
switch (cmd) {
case SLI_MGMT_RHBA:
/* Check for any RPRTs deferred till after RHBA completes */
lpfc_fdmi_rprt_defer(phba, vport->fdmi_port_mask);
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA, 0);
break;
case SLI_MGMT_DHBA:
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
break;
case SLI_MGMT_DPRT:
if (vport->port_type == LPFC_PHYSICAL_PORT) {
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RHBA, 0);
} else {
ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
if (!ndlp)
return;
/* Only issue a RPRT for the vport if the RHBA
* for the physical port completes successfully.
* We may have to defer the RPRT accordingly.
*/
if (phba->hba_flag & HBA_RHBA_CMPL) {
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT, 0);
} else {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY,
"6078 RPRT deferred\n");
vport->ct_flags |= FC_CT_RPRT_DEFER;
}
}
break;
case SLI_MGMT_RPA:
if (vport->port_type == LPFC_PHYSICAL_PORT &&
phba->sli4_hba.pc_sli4_params.mi_ver) {
/* mi is only for the phyical port, no vports */
if (phba->link_flag & LS_CT_VEN_RPA) {
lpfc_printf_vlog(vport, KERN_INFO,
LOG_DISCOVERY | LOG_ELS |
LOG_CGN_MGMT,
"6449 VEN RPA FDMI Success\n");
phba->link_flag &= ~LS_CT_VEN_RPA;
break;
}
lpfc_printf_log(phba, KERN_INFO,
LOG_DISCOVERY | LOG_CGN_MGMT,
"6210 Issue Vendor MI FDMI %x\n",
phba->sli4_hba.pc_sli4_params.mi_ver);
/* CGN is only for the physical port, no vports */
if (lpfc_fdmi_cmd(vport, ndlp, cmd,
LPFC_FDMI_VENDOR_ATTR_mi) == 0)
phba->link_flag |= LS_CT_VEN_RPA;
lpfc_printf_log(phba, KERN_INFO,
LOG_DISCOVERY | LOG_ELS,
"6458 Send MI FDMI:%x Flag x%x\n",
phba->sli4_hba.pc_sli4_params.mi_ver,
phba->link_flag);
} else {
lpfc_printf_log(phba, KERN_INFO,
LOG_DISCOVERY | LOG_ELS,
"6459 No FDMI VEN MI support - "
"RPA Success\n");
}
break;
}
return;
}
/**
* lpfc_fdmi_change_check - Check for changed FDMI parameters
* @vport: pointer to a host virtual N_Port data structure.
*
* Check how many mapped NPorts we are connected to
* Check if our hostname changed
* Called from hbeat timeout routine to check if any FDMI parameters
* changed. If so, re-register those Attributes.
*/
void
lpfc_fdmi_change_check(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp;
uint16_t cnt;
if (!lpfc_is_link_up(phba))
return;
/* Must be connected to a Fabric */
if (!(vport->fc_flag & FC_FABRIC))
return;
ndlp = lpfc_findnode_did(vport, FDMI_DID);
if (!ndlp)
return;
/* Check if system hostname changed */
if (strcmp(phba->os_host_name, init_utsname()->nodename)) {
memset(phba->os_host_name, 0, sizeof(phba->os_host_name));
scnprintf(phba->os_host_name, sizeof(phba->os_host_name), "%s",
init_utsname()->nodename);
lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
/* Since this effects multiple HBA and PORT attributes, we need
* de-register and go thru the whole FDMI registration cycle.
* DHBA -> DPRT -> RHBA -> RPA (physical port)
* DPRT -> RPRT (vports)
*/
if (vport->port_type == LPFC_PHYSICAL_PORT) {
/* For extra Vendor RPA */
phba->link_flag &= ~LS_CT_VEN_RPA;
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
} else {
ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
if (!ndlp)
return;
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
}
/* Since this code path registers all the port attributes
* we can just return without further checking.
*/
return;
}
if (!(vport->fdmi_port_mask & LPFC_FDMI_PORT_ATTR_num_disc))
return;
/* Check if the number of mapped NPorts changed */
cnt = lpfc_find_map_node(vport);
if (cnt == vport->fdmi_num_disc)
return;
if (vport->port_type == LPFC_PHYSICAL_PORT) {
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA,
LPFC_FDMI_PORT_ATTR_num_disc);
} else {
ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
if (!ndlp)
return;
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT,
LPFC_FDMI_PORT_ATTR_num_disc);
}
}
static inline int
lpfc_fdmi_set_attr_u32(void *attr, uint16_t attrtype, uint32_t attrval)
{
struct lpfc_fdmi_attr_u32 *ae = attr;
int size = sizeof(*ae);
ae->type = cpu_to_be16(attrtype);
ae->len = cpu_to_be16(size);
ae->value_u32 = cpu_to_be32(attrval);
return size;
}
static inline int
lpfc_fdmi_set_attr_wwn(void *attr, uint16_t attrtype, struct lpfc_name *wwn)
{
struct lpfc_fdmi_attr_wwn *ae = attr;
int size = sizeof(*ae);
ae->type = cpu_to_be16(attrtype);
ae->len = cpu_to_be16(size);
/* WWN's assumed to be bytestreams - Big Endian presentation */
memcpy(ae->name, wwn,
min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));
return size;
}
static inline int
lpfc_fdmi_set_attr_fullwwn(void *attr, uint16_t attrtype,
struct lpfc_name *wwnn, struct lpfc_name *wwpn)
{
struct lpfc_fdmi_attr_fullwwn *ae = attr;
u8 *nname = ae->nname;
u8 *pname = ae->pname;
int size = sizeof(*ae);
ae->type = cpu_to_be16(attrtype);
ae->len = cpu_to_be16(size);
/* WWN's assumed to be bytestreams - Big Endian presentation */
memcpy(nname, wwnn,
min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));
memcpy(pname, wwpn,
min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));
return size;
}
static inline int
lpfc_fdmi_set_attr_string(void *attr, uint16_t attrtype, char *attrstring)
{
struct lpfc_fdmi_attr_string *ae = attr;
int len, size;
/*
* We are trusting the caller that if a fdmi string field
* is capped at 64 bytes, the caller passes in a string of
* 64 bytes or less.
*/
strncpy(ae->value_string, attrstring, sizeof(ae->value_string));
len = strnlen(ae->value_string, sizeof(ae->value_string));
/* round string length to a 32bit boundary. Ensure there's a NULL */
len += (len & 3) ? (4 - (len & 3)) : 4;
/* size is Type/Len (4 bytes) plus string length */
size = FOURBYTES + len;
ae->type = cpu_to_be16(attrtype);
ae->len = cpu_to_be16(size);
return size;
}
/* Bitfields for FC4 Types that can be reported */
#define ATTR_FC4_CT 0x00000001
#define ATTR_FC4_FCP 0x00000002
#define ATTR_FC4_NVME 0x00000004
static inline int
lpfc_fdmi_set_attr_fc4types(void *attr, uint16_t attrtype, uint32_t typemask)
{
struct lpfc_fdmi_attr_fc4types *ae = attr;
int size = sizeof(*ae);
ae->type = cpu_to_be16(attrtype);
ae->len = cpu_to_be16(size);
if (typemask & ATTR_FC4_FCP)
ae->value_types[2] = 0x01; /* Type 0x8 - FCP */
if (typemask & ATTR_FC4_CT)
ae->value_types[7] = 0x01; /* Type 0x20 - CT */
if (typemask & ATTR_FC4_NVME)
ae->value_types[6] = 0x01; /* Type 0x28 - NVME */
return size;
}
/* Routines for all individual HBA attributes */
static int
lpfc_fdmi_hba_attr_wwnn(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_wwn(attr, RHBA_NODENAME,
&vport->fc_sparam.nodeName);
}
static int
lpfc_fdmi_hba_attr_manufacturer(struct lpfc_vport *vport, void *attr)
{
/* This string MUST be consistent with other FC platforms
* supported by Broadcom.
*/
return lpfc_fdmi_set_attr_string(attr, RHBA_MANUFACTURER,
"Emulex Corporation");
}
static int
lpfc_fdmi_hba_attr_sn(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
return lpfc_fdmi_set_attr_string(attr, RHBA_SERIAL_NUMBER,
phba->SerialNumber);
}
static int
lpfc_fdmi_hba_attr_model(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
return lpfc_fdmi_set_attr_string(attr, RHBA_MODEL,
phba->ModelName);
}
static int
lpfc_fdmi_hba_attr_description(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
return lpfc_fdmi_set_attr_string(attr, RHBA_MODEL_DESCRIPTION,
phba->ModelDesc);
}
static int
lpfc_fdmi_hba_attr_hdw_ver(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
lpfc_vpd_t *vp = &phba->vpd;
char buf[16] = { 0 };
snprintf(buf, sizeof(buf), "%08x", vp->rev.biuRev);
return lpfc_fdmi_set_attr_string(attr, RHBA_HARDWARE_VERSION, buf);
}
static int
lpfc_fdmi_hba_attr_drvr_ver(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_string(attr, RHBA_DRIVER_VERSION,
lpfc_release_version);
}
static int
lpfc_fdmi_hba_attr_rom_ver(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
char buf[64] = { 0 };
if (phba->sli_rev == LPFC_SLI_REV4) {
lpfc_decode_firmware_rev(phba, buf, 1);
return lpfc_fdmi_set_attr_string(attr, RHBA_OPTION_ROM_VERSION,
buf);
}
return lpfc_fdmi_set_attr_string(attr, RHBA_OPTION_ROM_VERSION,
phba->OptionROMVersion);
}
static int
lpfc_fdmi_hba_attr_fmw_ver(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
char buf[64] = { 0 };
lpfc_decode_firmware_rev(phba, buf, 1);
return lpfc_fdmi_set_attr_string(attr, RHBA_FIRMWARE_VERSION, buf);
}
static int
lpfc_fdmi_hba_attr_os_ver(struct lpfc_vport *vport, void *attr)
{
char buf[256] = { 0 };
snprintf(buf, sizeof(buf), "%s %s %s",
init_utsname()->sysname,
init_utsname()->release,
init_utsname()->version);
return lpfc_fdmi_set_attr_string(attr, RHBA_OS_NAME_VERSION, buf);
}
static int
lpfc_fdmi_hba_attr_ct_len(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_u32(attr, RHBA_MAX_CT_PAYLOAD_LEN,
LPFC_MAX_CT_SIZE);
}
static int
lpfc_fdmi_hba_attr_symbolic_name(struct lpfc_vport *vport, void *attr)
{
char buf[256] = { 0 };
lpfc_vport_symbolic_node_name(vport, buf, sizeof(buf));
return lpfc_fdmi_set_attr_string(attr, RHBA_SYM_NODENAME, buf);
}
static int
lpfc_fdmi_hba_attr_vendor_info(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_u32(attr, RHBA_VENDOR_INFO, 0);
}
static int
lpfc_fdmi_hba_attr_num_ports(struct lpfc_vport *vport, void *attr)
{
/* Each driver instance corresponds to a single port */
return lpfc_fdmi_set_attr_u32(attr, RHBA_NUM_PORTS, 1);
}
static int
lpfc_fdmi_hba_attr_fabric_wwnn(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_wwn(attr, RHBA_FABRIC_WWNN,
&vport->fabric_nodename);
}
static int
lpfc_fdmi_hba_attr_bios_ver(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
return lpfc_fdmi_set_attr_string(attr, RHBA_BIOS_VERSION,
phba->BIOSVersion);
}
static int
lpfc_fdmi_hba_attr_bios_state(struct lpfc_vport *vport, void *attr)
{
/* Driver doesn't have access to this information */
return lpfc_fdmi_set_attr_u32(attr, RHBA_BIOS_STATE, 0);
}
static int
lpfc_fdmi_hba_attr_vendor_id(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_string(attr, RHBA_VENDOR_ID, "EMULEX");
}
/*
* Routines for all individual PORT attributes
*/
static int
lpfc_fdmi_port_attr_fc4type(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
u32 fc4types;
fc4types = (ATTR_FC4_CT | ATTR_FC4_FCP);
/* Check to see if Firmware supports NVME and on physical port */
if ((phba->sli_rev == LPFC_SLI_REV4) && (vport == phba->pport) &&
phba->sli4_hba.pc_sli4_params.nvme)
fc4types |= ATTR_FC4_NVME;
return lpfc_fdmi_set_attr_fc4types(attr, RPRT_SUPPORTED_FC4_TYPES,
fc4types);
}
static int
lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
u32 speeds = 0;
u32 tcfg;
u8 i, cnt;
if (!(phba->hba_flag & HBA_FCOE_MODE)) {
cnt = 0;
if (phba->sli_rev == LPFC_SLI_REV4) {
tcfg = phba->sli4_hba.conf_trunk;
for (i = 0; i < 4; i++, tcfg >>= 1)
if (tcfg & 1)
cnt++;
}
if (cnt > 2) { /* 4 lane trunk group */
if (phba->lmt & LMT_64Gb)
speeds |= HBA_PORTSPEED_256GFC;
if (phba->lmt & LMT_32Gb)
speeds |= HBA_PORTSPEED_128GFC;
if (phba->lmt & LMT_16Gb)
speeds |= HBA_PORTSPEED_64GFC;
} else if (cnt) { /* 2 lane trunk group */
if (phba->lmt & LMT_128Gb)
speeds |= HBA_PORTSPEED_256GFC;
if (phba->lmt & LMT_64Gb)
speeds |= HBA_PORTSPEED_128GFC;
if (phba->lmt & LMT_32Gb)
speeds |= HBA_PORTSPEED_64GFC;
if (phba->lmt & LMT_16Gb)
speeds |= HBA_PORTSPEED_32GFC;
} else {
if (phba->lmt & LMT_256Gb)
speeds |= HBA_PORTSPEED_256GFC;
if (phba->lmt & LMT_128Gb)
speeds |= HBA_PORTSPEED_128GFC;
if (phba->lmt & LMT_64Gb)
speeds |= HBA_PORTSPEED_64GFC;
if (phba->lmt & LMT_32Gb)
speeds |= HBA_PORTSPEED_32GFC;
if (phba->lmt & LMT_16Gb)
speeds |= HBA_PORTSPEED_16GFC;
if (phba->lmt & LMT_10Gb)
speeds |= HBA_PORTSPEED_10GFC;
if (phba->lmt & LMT_8Gb)
speeds |= HBA_PORTSPEED_8GFC;
if (phba->lmt & LMT_4Gb)
speeds |= HBA_PORTSPEED_4GFC;
if (phba->lmt & LMT_2Gb)
speeds |= HBA_PORTSPEED_2GFC;
if (phba->lmt & LMT_1Gb)
speeds |= HBA_PORTSPEED_1GFC;
}
} else {
/* FCoE links support only one speed */
switch (phba->fc_linkspeed) {
case LPFC_ASYNC_LINK_SPEED_10GBPS:
speeds = HBA_PORTSPEED_10GE;
break;
case LPFC_ASYNC_LINK_SPEED_25GBPS:
speeds = HBA_PORTSPEED_25GE;
break;
case LPFC_ASYNC_LINK_SPEED_40GBPS:
speeds = HBA_PORTSPEED_40GE;
break;
case LPFC_ASYNC_LINK_SPEED_100GBPS:
speeds = HBA_PORTSPEED_100GE;
break;
}
}
return lpfc_fdmi_set_attr_u32(attr, RPRT_SUPPORTED_SPEED, speeds);
}
static int
lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
u32 speeds = 0;
if (!(phba->hba_flag & HBA_FCOE_MODE)) {
switch (phba->fc_linkspeed) {
case LPFC_LINK_SPEED_1GHZ:
speeds = HBA_PORTSPEED_1GFC;
break;
case LPFC_LINK_SPEED_2GHZ:
speeds = HBA_PORTSPEED_2GFC;
break;
case LPFC_LINK_SPEED_4GHZ:
speeds = HBA_PORTSPEED_4GFC;
break;
case LPFC_LINK_SPEED_8GHZ:
speeds = HBA_PORTSPEED_8GFC;
break;
case LPFC_LINK_SPEED_10GHZ:
speeds = HBA_PORTSPEED_10GFC;
break;
case LPFC_LINK_SPEED_16GHZ:
speeds = HBA_PORTSPEED_16GFC;
break;
case LPFC_LINK_SPEED_32GHZ:
speeds = HBA_PORTSPEED_32GFC;
break;
case LPFC_LINK_SPEED_64GHZ:
speeds = HBA_PORTSPEED_64GFC;
break;
case LPFC_LINK_SPEED_128GHZ:
speeds = HBA_PORTSPEED_128GFC;
break;
case LPFC_LINK_SPEED_256GHZ:
speeds = HBA_PORTSPEED_256GFC;
break;
default:
speeds = HBA_PORTSPEED_UNKNOWN;
break;
}
} else {
switch (phba->fc_linkspeed) {
case LPFC_ASYNC_LINK_SPEED_10GBPS:
speeds = HBA_PORTSPEED_10GE;
break;
case LPFC_ASYNC_LINK_SPEED_25GBPS:
speeds = HBA_PORTSPEED_25GE;
break;
case LPFC_ASYNC_LINK_SPEED_40GBPS:
speeds = HBA_PORTSPEED_40GE;
break;
case LPFC_ASYNC_LINK_SPEED_100GBPS:
speeds = HBA_PORTSPEED_100GE;
break;
default:
speeds = HBA_PORTSPEED_UNKNOWN;
break;
}
}
return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_SPEED, speeds);
}
static int
lpfc_fdmi_port_attr_max_frame(struct lpfc_vport *vport, void *attr)
{
struct serv_parm *hsp = (struct serv_parm *)&vport->fc_sparam;
return lpfc_fdmi_set_attr_u32(attr, RPRT_MAX_FRAME_SIZE,
(((uint32_t)hsp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
(uint32_t)hsp->cmn.bbRcvSizeLsb);
}
static int
lpfc_fdmi_port_attr_os_devname(struct lpfc_vport *vport, void *attr)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
char buf[64] = { 0 };
snprintf(buf, sizeof(buf), "/sys/class/scsi_host/host%d",
shost->host_no);
return lpfc_fdmi_set_attr_string(attr, RPRT_OS_DEVICE_NAME, buf);
}
static int
lpfc_fdmi_port_attr_host_name(struct lpfc_vport *vport, void *attr)
{
char buf[64] = { 0 };
scnprintf(buf, sizeof(buf), "%s", vport->phba->os_host_name);
return lpfc_fdmi_set_attr_string(attr, RPRT_HOST_NAME, buf);
}
static int
lpfc_fdmi_port_attr_wwnn(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_wwn(attr, RPRT_NODENAME,
&vport->fc_sparam.nodeName);
}
static int
lpfc_fdmi_port_attr_wwpn(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_wwn(attr, RPRT_PORTNAME,
&vport->fc_sparam.portName);
}
static int
lpfc_fdmi_port_attr_symbolic_name(struct lpfc_vport *vport, void *attr)
{
char buf[256] = { 0 };
lpfc_vport_symbolic_port_name(vport, buf, sizeof(buf));
return lpfc_fdmi_set_attr_string(attr, RPRT_SYM_PORTNAME, buf);
}
static int
lpfc_fdmi_port_attr_port_type(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_TYPE,
(phba->fc_topology == LPFC_TOPOLOGY_LOOP) ?
LPFC_FDMI_PORTTYPE_NLPORT :
LPFC_FDMI_PORTTYPE_NPORT);
}
static int
lpfc_fdmi_port_attr_class(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_u32(attr, RPRT_SUPPORTED_CLASS,
FC_COS_CLASS2 | FC_COS_CLASS3);
}
static int
lpfc_fdmi_port_attr_fabric_wwpn(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_wwn(attr, RPRT_FABRICNAME,
&vport->fabric_portname);
}
static int
lpfc_fdmi_port_attr_active_fc4type(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
u32 fc4types;
fc4types = (ATTR_FC4_CT | ATTR_FC4_FCP);
/* Check to see if NVME is configured or not */
if (vport == phba->pport &&
phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
fc4types |= ATTR_FC4_NVME;
return lpfc_fdmi_set_attr_fc4types(attr, RPRT_ACTIVE_FC4_TYPES,
fc4types);
}
static int
lpfc_fdmi_port_attr_port_state(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_STATE,
LPFC_FDMI_PORTSTATE_ONLINE);
}
static int
lpfc_fdmi_port_attr_num_disc(struct lpfc_vport *vport, void *attr)
{
vport->fdmi_num_disc = lpfc_find_map_node(vport);
return lpfc_fdmi_set_attr_u32(attr, RPRT_DISC_PORT,
vport->fdmi_num_disc);
}
static int
lpfc_fdmi_port_attr_nportid(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_ID, vport->fc_myDID);
}
static int
lpfc_fdmi_smart_attr_service(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_SERVICE,
"Smart SAN Initiator");
}
static int
lpfc_fdmi_smart_attr_guid(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_fullwwn(attr, RPRT_SMART_GUID,
&vport->fc_sparam.nodeName,
&vport->fc_sparam.portName);
}
static int
lpfc_fdmi_smart_attr_version(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_VERSION,
"Smart SAN Version 2.0");
}
static int
lpfc_fdmi_smart_attr_model(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_MODEL,
phba->ModelName);
}
static int
lpfc_fdmi_smart_attr_port_info(struct lpfc_vport *vport, void *attr)
{
/* SRIOV (type 3) is not supported */
return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_PORT_INFO,
(vport->vpi) ? 2 /* NPIV */ : 1 /* Physical */);
}
static int
lpfc_fdmi_smart_attr_qos(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_QOS, 0);
}
static int
lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport, void *attr)
{
return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_SECURITY, 1);
}
static int
lpfc_fdmi_vendor_attr_mi(struct lpfc_vport *vport, void *attr)
{
struct lpfc_hba *phba = vport->phba;
char buf[32] = { 0 };
sprintf(buf, "ELXE2EM:%04d", phba->sli4_hba.pc_sli4_params.mi_ver);
return lpfc_fdmi_set_attr_string(attr, RPRT_VENDOR_MI, buf);
}
/* RHBA attribute jump table */
static int (*lpfc_fdmi_hba_action[])
(struct lpfc_vport *vport, void *attrbuf) = {
/* Action routine Mask bit Attribute type */
lpfc_fdmi_hba_attr_wwnn, /* bit0 RHBA_NODENAME */
lpfc_fdmi_hba_attr_manufacturer, /* bit1 RHBA_MANUFACTURER */
lpfc_fdmi_hba_attr_sn, /* bit2 RHBA_SERIAL_NUMBER */
lpfc_fdmi_hba_attr_model, /* bit3 RHBA_MODEL */
lpfc_fdmi_hba_attr_description, /* bit4 RHBA_MODEL_DESCRIPTION */
lpfc_fdmi_hba_attr_hdw_ver, /* bit5 RHBA_HARDWARE_VERSION */
lpfc_fdmi_hba_attr_drvr_ver, /* bit6 RHBA_DRIVER_VERSION */
lpfc_fdmi_hba_attr_rom_ver, /* bit7 RHBA_OPTION_ROM_VERSION */
lpfc_fdmi_hba_attr_fmw_ver, /* bit8 RHBA_FIRMWARE_VERSION */
lpfc_fdmi_hba_attr_os_ver, /* bit9 RHBA_OS_NAME_VERSION */
lpfc_fdmi_hba_attr_ct_len, /* bit10 RHBA_MAX_CT_PAYLOAD_LEN */
lpfc_fdmi_hba_attr_symbolic_name, /* bit11 RHBA_SYM_NODENAME */
lpfc_fdmi_hba_attr_vendor_info, /* bit12 RHBA_VENDOR_INFO */
lpfc_fdmi_hba_attr_num_ports, /* bit13 RHBA_NUM_PORTS */
lpfc_fdmi_hba_attr_fabric_wwnn, /* bit14 RHBA_FABRIC_WWNN */
lpfc_fdmi_hba_attr_bios_ver, /* bit15 RHBA_BIOS_VERSION */
lpfc_fdmi_hba_attr_bios_state, /* bit16 RHBA_BIOS_STATE */
lpfc_fdmi_hba_attr_vendor_id, /* bit17 RHBA_VENDOR_ID */
};
/* RPA / RPRT attribute jump table */
static int (*lpfc_fdmi_port_action[])
(struct lpfc_vport *vport, void *attrbuf) = {
/* Action routine Mask bit Attribute type */
lpfc_fdmi_port_attr_fc4type, /* bit0 RPRT_SUPPORT_FC4_TYPES */
lpfc_fdmi_port_attr_support_speed, /* bit1 RPRT_SUPPORTED_SPEED */
lpfc_fdmi_port_attr_speed, /* bit2 RPRT_PORT_SPEED */
lpfc_fdmi_port_attr_max_frame, /* bit3 RPRT_MAX_FRAME_SIZE */
lpfc_fdmi_port_attr_os_devname, /* bit4 RPRT_OS_DEVICE_NAME */
lpfc_fdmi_port_attr_host_name, /* bit5 RPRT_HOST_NAME */
lpfc_fdmi_port_attr_wwnn, /* bit6 RPRT_NODENAME */
lpfc_fdmi_port_attr_wwpn, /* bit7 RPRT_PORTNAME */
lpfc_fdmi_port_attr_symbolic_name, /* bit8 RPRT_SYM_PORTNAME */
lpfc_fdmi_port_attr_port_type, /* bit9 RPRT_PORT_TYPE */
lpfc_fdmi_port_attr_class, /* bit10 RPRT_SUPPORTED_CLASS */
lpfc_fdmi_port_attr_fabric_wwpn, /* bit11 RPRT_FABRICNAME */
lpfc_fdmi_port_attr_active_fc4type, /* bit12 RPRT_ACTIVE_FC4_TYPES */
lpfc_fdmi_port_attr_port_state, /* bit13 RPRT_PORT_STATE */
lpfc_fdmi_port_attr_num_disc, /* bit14 RPRT_DISC_PORT */
lpfc_fdmi_port_attr_nportid, /* bit15 RPRT_PORT_ID */
lpfc_fdmi_smart_attr_service, /* bit16 RPRT_SMART_SERVICE */
lpfc_fdmi_smart_attr_guid, /* bit17 RPRT_SMART_GUID */
lpfc_fdmi_smart_attr_version, /* bit18 RPRT_SMART_VERSION */
lpfc_fdmi_smart_attr_model, /* bit19 RPRT_SMART_MODEL */
lpfc_fdmi_smart_attr_port_info, /* bit20 RPRT_SMART_PORT_INFO */
lpfc_fdmi_smart_attr_qos, /* bit21 RPRT_SMART_QOS */
lpfc_fdmi_smart_attr_security, /* bit22 RPRT_SMART_SECURITY */
lpfc_fdmi_vendor_attr_mi, /* bit23 RPRT_VENDOR_MI */
};
/**
* lpfc_fdmi_cmd - Build and send a FDMI cmd to the specified NPort
* @vport: pointer to a host virtual N_Port data structure.
* @ndlp: ndlp to send FDMI cmd to (if NULL use FDMI_DID)
* @cmdcode: FDMI command to send
* @new_mask: Mask of HBA or PORT Attributes to send
*
* Builds and sends a FDMI command using the CT subsystem.
*/
int
lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
int cmdcode, uint32_t new_mask)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *rq, *rsp;
struct lpfc_sli_ct_request *CtReq;
struct ulp_bde64_le *bde;
uint32_t bit_pos;
uint32_t size, addsz;
uint32_t rsp_size;
uint32_t mask;
struct lpfc_fdmi_reg_hba *rh;
struct lpfc_fdmi_port_entry *pe;
struct lpfc_fdmi_reg_portattr *pab = NULL, *base = NULL;
struct lpfc_fdmi_attr_block *ab = NULL;
int (*func)(struct lpfc_vport *vport, void *attrbuf);
void (*cmpl)(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb);
if (!ndlp)
return 0;
cmpl = lpfc_cmpl_ct_disc_fdmi; /* called from discovery */
/* fill in BDEs for command */
/* Allocate buffer for command payload */
rq = kmalloc(sizeof(*rq), GFP_KERNEL);
if (!rq)
goto fdmi_cmd_exit;
rq->virt = lpfc_mbuf_alloc(phba, 0, &rq->phys);
if (!rq->virt)
goto fdmi_cmd_free_rq;
/* Allocate buffer for Buffer ptr list */
rsp = kmalloc(sizeof(*rsp), GFP_KERNEL);
if (!rsp)
goto fdmi_cmd_free_rqvirt;
rsp->virt = lpfc_mbuf_alloc(phba, 0, &rsp->phys);
if (!rsp->virt)
goto fdmi_cmd_free_rsp;
INIT_LIST_HEAD(&rq->list);
INIT_LIST_HEAD(&rsp->list);
/* mbuf buffers are 1K in length - aka LPFC_BPL_SIZE */
memset(rq->virt, 0, LPFC_BPL_SIZE);
rsp_size = LPFC_BPL_SIZE;
/* FDMI request */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0218 FDMI Request x%x mask x%x Data: x%x x%x x%x\n",
cmdcode, new_mask, vport->fdmi_port_mask,
vport->fc_flag, vport->port_state);
CtReq = (struct lpfc_sli_ct_request *)rq->virt;
/* First populate the CT_IU preamble */
CtReq->RevisionId.bits.Revision = SLI_CT_REVISION;
CtReq->RevisionId.bits.InId = 0;
CtReq->FsType = SLI_CT_MANAGEMENT_SERVICE;
CtReq->FsSubType = SLI_CT_FDMI_Subtypes;
CtReq->CommandResponse.bits.CmdRsp = cpu_to_be16(cmdcode);
size = 0;
/* Next fill in the specific FDMI cmd information */
switch (cmdcode) {
case SLI_MGMT_RHAT:
case SLI_MGMT_RHBA:
rh = (struct lpfc_fdmi_reg_hba *)&CtReq->un;
/* HBA Identifier */
memcpy(&rh->hi.PortName, &phba->pport->fc_sparam.portName,
sizeof(struct lpfc_name));
size += sizeof(struct lpfc_fdmi_hba_ident);
if (cmdcode == SLI_MGMT_RHBA) {
/* Registered Port List */
/* One entry (port) per adapter */
rh->rpl.EntryCnt = cpu_to_be32(1);
memcpy(&rh->rpl.pe.PortName,
&phba->pport->fc_sparam.portName,
sizeof(struct lpfc_name));
size += sizeof(struct lpfc_fdmi_reg_port_list);
}
ab = (struct lpfc_fdmi_attr_block *)((uint8_t *)rh + size);
ab->EntryCnt = 0;
size += FOURBYTES; /* add length of EntryCnt field */
bit_pos = 0;
if (new_mask)
mask = new_mask;
else
mask = vport->fdmi_hba_mask;
/* Mask will dictate what attributes to build in the request */
while (mask) {
if (mask & 0x1) {
func = lpfc_fdmi_hba_action[bit_pos];
addsz = func(vport, ((uint8_t *)rh + size));
if (addsz) {
ab->EntryCnt++;
size += addsz;
}
/* check if another attribute fits */
if ((size + FDMI_MAX_ATTRLEN) >
(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
goto hba_out;
}
mask = mask >> 1;
bit_pos++;
}
hba_out:
ab->EntryCnt = cpu_to_be32(ab->EntryCnt);
/* Total size */
size += GID_REQUEST_SZ - 4;
break;
case SLI_MGMT_RPRT:
if (vport->port_type != LPFC_PHYSICAL_PORT) {
ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
if (!ndlp)
return 0;
}
fallthrough;
case SLI_MGMT_RPA:
/* Store base ptr right after preamble */
base = (struct lpfc_fdmi_reg_portattr *)&CtReq->un;
if (cmdcode == SLI_MGMT_RPRT) {
rh = (struct lpfc_fdmi_reg_hba *)base;
/* HBA Identifier */
memcpy(&rh->hi.PortName,
&phba->pport->fc_sparam.portName,
sizeof(struct lpfc_name));
pab = (struct lpfc_fdmi_reg_portattr *)
((uint8_t *)base + sizeof(struct lpfc_name));
size += sizeof(struct lpfc_name);
} else {
pab = base;
}
memcpy((uint8_t *)&pab->PortName,
(uint8_t *)&vport->fc_sparam.portName,
sizeof(struct lpfc_name));
pab->ab.EntryCnt = 0;
/* add length of name and EntryCnt field */
size += sizeof(struct lpfc_name) + FOURBYTES;
bit_pos = 0;
if (new_mask)
mask = new_mask;
else
mask = vport->fdmi_port_mask;
/* Mask will dictate what attributes to build in the request */
while (mask) {
if (mask & 0x1) {
func = lpfc_fdmi_port_action[bit_pos];
addsz = func(vport, ((uint8_t *)base + size));
if (addsz) {
pab->ab.EntryCnt++;
size += addsz;
}
/* check if another attribute fits */
if ((size + FDMI_MAX_ATTRLEN) >
(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
goto port_out;
}
mask = mask >> 1;
bit_pos++;
}
port_out:
pab->ab.EntryCnt = cpu_to_be32(pab->ab.EntryCnt);
size += GID_REQUEST_SZ - 4;
break;
case SLI_MGMT_GHAT:
case SLI_MGMT_GRPL:
rsp_size = FC_MAX_NS_RSP;
fallthrough;
case SLI_MGMT_DHBA:
case SLI_MGMT_DHAT:
pe = (struct lpfc_fdmi_port_entry *)&CtReq->un;
memcpy((uint8_t *)&pe->PortName,
(uint8_t *)&vport->fc_sparam.portName,
sizeof(struct lpfc_name));
size = GID_REQUEST_SZ - 4 + sizeof(struct lpfc_name);
break;
case SLI_MGMT_GPAT:
case SLI_MGMT_GPAS:
rsp_size = FC_MAX_NS_RSP;
fallthrough;
case SLI_MGMT_DPRT:
if (vport->port_type != LPFC_PHYSICAL_PORT) {
ndlp = lpfc_findnode_did(phba->pport, FDMI_DID);
if (!ndlp)
return 0;
}
fallthrough;
case SLI_MGMT_DPA:
pe = (struct lpfc_fdmi_port_entry *)&CtReq->un;
memcpy((uint8_t *)&pe->PortName,
(uint8_t *)&vport->fc_sparam.portName,
sizeof(struct lpfc_name));
size = GID_REQUEST_SZ - 4 + sizeof(struct lpfc_name);
break;
case SLI_MGMT_GRHL:
size = GID_REQUEST_SZ - 4;
break;
default:
lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
"0298 FDMI cmdcode x%x not supported\n",
cmdcode);
goto fdmi_cmd_free_rspvirt;
}
CtReq->CommandResponse.bits.Size = cpu_to_be16(rsp_size);
bde = (struct ulp_bde64_le *)rsp->virt;
bde->addr_high = cpu_to_le32(putPaddrHigh(rq->phys));
bde->addr_low = cpu_to_le32(putPaddrLow(rq->phys));
bde->type_size = cpu_to_le32(ULP_BDE64_TYPE_BDE_64 <<
ULP_BDE64_TYPE_SHIFT);
bde->type_size |= cpu_to_le32(size);
/*
* The lpfc_ct_cmd/lpfc_get_req shall increment ndlp reference count
* to hold ndlp reference for the corresponding callback function.
*/
if (!lpfc_ct_cmd(vport, rq, rsp, ndlp, cmpl, rsp_size, 0))
return 0;
fdmi_cmd_free_rspvirt:
lpfc_mbuf_free(phba, rsp->virt, rsp->phys);
fdmi_cmd_free_rsp:
kfree(rsp);
fdmi_cmd_free_rqvirt:
lpfc_mbuf_free(phba, rq->virt, rq->phys);
fdmi_cmd_free_rq:
kfree(rq);
fdmi_cmd_exit:
/* Issue FDMI request failed */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0244 Issue FDMI request failed Data: x%x\n",
cmdcode);
return 1;
}
/**
* lpfc_delayed_disc_tmo - Timeout handler for delayed discovery timer.
* @t: Context object of the timer.
*
* This function set the WORKER_DELAYED_DISC_TMO flag and wake up
* the worker thread.
**/
void
lpfc_delayed_disc_tmo(struct timer_list *t)
{
struct lpfc_vport *vport = from_timer(vport, t, delayed_disc_tmo);
struct lpfc_hba *phba = vport->phba;
uint32_t tmo_posted;
unsigned long iflag;
spin_lock_irqsave(&vport->work_port_lock, iflag);
tmo_posted = vport->work_port_events & WORKER_DELAYED_DISC_TMO;
if (!tmo_posted)
vport->work_port_events |= WORKER_DELAYED_DISC_TMO;
spin_unlock_irqrestore(&vport->work_port_lock, iflag);
if (!tmo_posted)
lpfc_worker_wake_up(phba);
return;
}
/**
* lpfc_delayed_disc_timeout_handler - Function called by worker thread to
* handle delayed discovery.
* @vport: pointer to a host virtual N_Port data structure.
*
* This function start nport discovery of the vport.
**/
void
lpfc_delayed_disc_timeout_handler(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
if (!(vport->fc_flag & FC_DISC_DELAYED)) {
spin_unlock_irq(shost->host_lock);
return;
}
vport->fc_flag &= ~FC_DISC_DELAYED;
spin_unlock_irq(shost->host_lock);
lpfc_do_scr_ns_plogi(vport->phba, vport);
}
void
lpfc_decode_firmware_rev(struct lpfc_hba *phba, char *fwrevision, int flag)
{
struct lpfc_sli *psli = &phba->sli;
lpfc_vpd_t *vp = &phba->vpd;
uint32_t b1, b2, b3, b4, i, rev;
char c;
uint32_t *ptr, str[4];
uint8_t *fwname;
if (phba->sli_rev == LPFC_SLI_REV4)
snprintf(fwrevision, FW_REV_STR_SIZE, "%s", vp->rev.opFwName);
else if (vp->rev.rBit) {
if (psli->sli_flag & LPFC_SLI_ACTIVE)
rev = vp->rev.sli2FwRev;
else
rev = vp->rev.sli1FwRev;
b1 = (rev & 0x0000f000) >> 12;
b2 = (rev & 0x00000f00) >> 8;
b3 = (rev & 0x000000c0) >> 6;
b4 = (rev & 0x00000030) >> 4;
switch (b4) {
case 0:
c = 'N';
break;
case 1:
c = 'A';
break;
case 2:
c = 'B';
break;
case 3:
c = 'X';
break;
default:
c = 0;
break;
}
b4 = (rev & 0x0000000f);
if (psli->sli_flag & LPFC_SLI_ACTIVE)
fwname = vp->rev.sli2FwName;
else
fwname = vp->rev.sli1FwName;
for (i = 0; i < 16; i++)
if (fwname[i] == 0x20)
fwname[i] = 0;
ptr = (uint32_t*)fwname;
for (i = 0; i < 3; i++)
str[i] = be32_to_cpu(*ptr++);
if (c == 0) {
if (flag)
sprintf(fwrevision, "%d.%d%d (%s)",
b1, b2, b3, (char *)str);
else
sprintf(fwrevision, "%d.%d%d", b1,
b2, b3);
} else {
if (flag)
sprintf(fwrevision, "%d.%d%d%c%d (%s)",
b1, b2, b3, c,
b4, (char *)str);
else
sprintf(fwrevision, "%d.%d%d%c%d",
b1, b2, b3, c, b4);
}
} else {
rev = vp->rev.smFwRev;
b1 = (rev & 0xff000000) >> 24;
b2 = (rev & 0x00f00000) >> 20;
b3 = (rev & 0x000f0000) >> 16;
c = (rev & 0x0000ff00) >> 8;
b4 = (rev & 0x000000ff);
sprintf(fwrevision, "%d.%d%d%c%d", b1, b2, b3, c, b4);
}
return;
}
static void
lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb)
{
struct lpfc_vport *vport = cmdiocb->vport;
struct lpfc_dmabuf *inp = cmdiocb->cmd_dmabuf;
struct lpfc_dmabuf *outp = cmdiocb->rsp_dmabuf;
struct lpfc_sli_ct_request *ctcmd = inp->virt;
struct lpfc_sli_ct_request *ctrsp = outp->virt;
__be16 rsp = ctrsp->CommandResponse.bits.CmdRsp;
struct app_id_object *app;
struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
u32 cmd, hash, bucket;
struct lpfc_vmid *vmp, *cur;
u8 *data = outp->virt;
int i;
cmd = be16_to_cpu(ctcmd->CommandResponse.bits.CmdRsp);
if (cmd == SLI_CTAS_DALLAPP_ID)
lpfc_ct_free_iocb(phba, cmdiocb);
if (lpfc_els_chk_latt(vport) || get_job_ulpstatus(phba, rspiocb)) {
if (cmd != SLI_CTAS_DALLAPP_ID)
goto free_res;
}
/* Check for a CT LS_RJT response */
if (be16_to_cpu(rsp) == SLI_CT_RESPONSE_FS_RJT) {
if (cmd != SLI_CTAS_DALLAPP_ID)
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"3306 VMID FS_RJT Data: x%x x%x x%x\n",
cmd, ctrsp->ReasonCode,
ctrsp->Explanation);
if ((cmd != SLI_CTAS_DALLAPP_ID) ||
(ctrsp->ReasonCode != SLI_CT_UNABLE_TO_PERFORM_REQ) ||
(ctrsp->Explanation != SLI_CT_APP_ID_NOT_AVAILABLE)) {
/* If DALLAPP_ID failed retry later */
if (cmd == SLI_CTAS_DALLAPP_ID)
vport->load_flag |= FC_DEREGISTER_ALL_APP_ID;
goto free_res;
}
}
switch (cmd) {
case SLI_CTAS_RAPP_IDENT:
app = (struct app_id_object *)(RAPP_IDENT_OFFSET + data);
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"6712 RAPP_IDENT app id %d port id x%x id "
"len %d\n", be32_to_cpu(app->app_id),
be32_to_cpu(app->port_id),
app->obj.entity_id_len);
if (app->obj.entity_id_len == 0 || app->port_id == 0)
goto free_res;
hash = lpfc_vmid_hash_fn(app->obj.entity_id,
app->obj.entity_id_len);
vmp = lpfc_get_vmid_from_hashtable(vport, hash,
app->obj.entity_id);
if (vmp) {
write_lock(&vport->vmid_lock);
vmp->un.app_id = be32_to_cpu(app->app_id);
vmp->flag |= LPFC_VMID_REGISTERED;
vmp->flag &= ~LPFC_VMID_REQ_REGISTER;
write_unlock(&vport->vmid_lock);
/* Set IN USE flag */
vport->vmid_flag |= LPFC_VMID_IN_USE;
} else {
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"6901 No entry found %s hash %d\n",
app->obj.entity_id, hash);
}
break;
case SLI_CTAS_DAPP_IDENT:
app = (struct app_id_object *)(DAPP_IDENT_OFFSET + data);
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"6713 DAPP_IDENT app id %d port id x%x\n",
be32_to_cpu(app->app_id),
be32_to_cpu(app->port_id));
break;
case SLI_CTAS_DALLAPP_ID:
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"8856 Deregistered all app ids\n");
read_lock(&vport->vmid_lock);
for (i = 0; i < phba->cfg_max_vmid; i++) {
vmp = &vport->vmid[i];
if (vmp->flag != LPFC_VMID_SLOT_FREE)
memset(vmp, 0, sizeof(struct lpfc_vmid));
}
read_unlock(&vport->vmid_lock);
/* for all elements in the hash table */
if (!hash_empty(vport->hash_table))
hash_for_each(vport->hash_table, bucket, cur, hnode)
hash_del(&cur->hnode);
vport->load_flag |= FC_ALLOW_VMID;
break;
default:
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"8857 Invalid command code\n");
}
free_res:
lpfc_ct_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
}
/**
* lpfc_vmid_cmd - Build and send a FDMI cmd to the specified NPort
* @vport: pointer to a host virtual N_Port data structure.
* @cmdcode: application server command code to send
* @vmid: pointer to vmid info structure
*
* Builds and sends a FDMI command using the CT subsystem.
*/
int
lpfc_vmid_cmd(struct lpfc_vport *vport,
int cmdcode, struct lpfc_vmid *vmid)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *mp, *bmp;
struct lpfc_sli_ct_request *ctreq;
struct ulp_bde64 *bpl;
u32 size;
u32 rsp_size;
u8 *data;
struct lpfc_vmid_rapp_ident_list *rap;
struct lpfc_vmid_dapp_ident_list *dap;
u8 retry = 0;
struct lpfc_nodelist *ndlp;
void (*cmpl)(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_iocbq *rspiocb);
ndlp = lpfc_findnode_did(vport, FDMI_DID);
if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
return 0;
cmpl = lpfc_cmpl_ct_cmd_vmid;
/* fill in BDEs for command */
/* Allocate buffer for command payload */
mp = kmalloc(sizeof(*mp), GFP_KERNEL);
if (!mp)
goto vmid_free_mp_exit;
mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
if (!mp->virt)
goto vmid_free_mp_virt_exit;
/* Allocate buffer for Buffer ptr list */
bmp = kmalloc(sizeof(*bmp), GFP_KERNEL);
if (!bmp)
goto vmid_free_bmp_exit;
bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys);
if (!bmp->virt)
goto vmid_free_bmp_virt_exit;
INIT_LIST_HEAD(&mp->list);
INIT_LIST_HEAD(&bmp->list);
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"3275 VMID Request Data: x%x x%x x%x\n",
vport->fc_flag, vport->port_state, cmdcode);
ctreq = (struct lpfc_sli_ct_request *)mp->virt;
data = mp->virt;
/* First populate the CT_IU preamble */
memset(data, 0, LPFC_BPL_SIZE);
ctreq->RevisionId.bits.Revision = SLI_CT_REVISION;
ctreq->RevisionId.bits.InId = 0;
ctreq->FsType = SLI_CT_MANAGEMENT_SERVICE;
ctreq->FsSubType = SLI_CT_APP_SEV_Subtypes;
ctreq->CommandResponse.bits.CmdRsp = cpu_to_be16(cmdcode);
rsp_size = LPFC_BPL_SIZE;
size = 0;
switch (cmdcode) {
case SLI_CTAS_RAPP_IDENT:
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"1329 RAPP_IDENT for %s\n", vmid->host_vmid);
ctreq->un.PortID = cpu_to_be32(vport->fc_myDID);
rap = (struct lpfc_vmid_rapp_ident_list *)
(DAPP_IDENT_OFFSET + data);
rap->no_of_objects = cpu_to_be32(1);
rap->obj[0].entity_id_len = vmid->vmid_len;
memcpy(rap->obj[0].entity_id, vmid->host_vmid, vmid->vmid_len);
size = RAPP_IDENT_OFFSET +
struct_size(rap, obj, be32_to_cpu(rap->no_of_objects));
retry = 1;
break;
case SLI_CTAS_GALLAPPIA_ID:
ctreq->un.PortID = cpu_to_be32(vport->fc_myDID);
size = GALLAPPIA_ID_SIZE;
break;
case SLI_CTAS_DAPP_IDENT:
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"1469 DAPP_IDENT for %s\n", vmid->host_vmid);
ctreq->un.PortID = cpu_to_be32(vport->fc_myDID);
dap = (struct lpfc_vmid_dapp_ident_list *)
(DAPP_IDENT_OFFSET + data);
dap->no_of_objects = cpu_to_be32(1);
dap->obj[0].entity_id_len = vmid->vmid_len;
memcpy(dap->obj[0].entity_id, vmid->host_vmid, vmid->vmid_len);
size = DAPP_IDENT_OFFSET +
struct_size(dap, obj, be32_to_cpu(dap->no_of_objects));
write_lock(&vport->vmid_lock);
vmid->flag &= ~LPFC_VMID_REGISTERED;
write_unlock(&vport->vmid_lock);
retry = 1;
break;
case SLI_CTAS_DALLAPP_ID:
ctreq->un.PortID = cpu_to_be32(vport->fc_myDID);
size = DALLAPP_ID_SIZE;
break;
default:
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"7062 VMID cmdcode x%x not supported\n",
cmdcode);
goto vmid_free_all_mem;
}
ctreq->CommandResponse.bits.Size = cpu_to_be16(rsp_size);
bpl = (struct ulp_bde64 *)bmp->virt;
bpl->addrHigh = putPaddrHigh(mp->phys);
bpl->addrLow = putPaddrLow(mp->phys);
bpl->tus.f.bdeFlags = 0;
bpl->tus.f.bdeSize = size;
/* The lpfc_ct_cmd/lpfc_get_req shall increment ndlp reference count
* to hold ndlp reference for the corresponding callback function.
*/
if (!lpfc_ct_cmd(vport, mp, bmp, ndlp, cmpl, rsp_size, retry))
return 0;
vmid_free_all_mem:
lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
vmid_free_bmp_virt_exit:
kfree(bmp);
vmid_free_bmp_exit:
lpfc_mbuf_free(phba, mp->virt, mp->phys);
vmid_free_mp_virt_exit:
kfree(mp);
vmid_free_mp_exit:
/* Issue CT request failed */
lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
"3276 VMID CT request failed Data: x%x\n", cmdcode);
return -EIO;
}
|
linux-master
|
drivers/scsi/lpfc/lpfc_ct.c
|
/*
*******************************************************************************
** O.S : Linux
** FILE NAME : arcmsr_hba.c
** BY : Nick Cheng, C.L. Huang
** Description: SCSI RAID Device Driver for Areca RAID Controller
*******************************************************************************
** Copyright (C) 2002 - 2014, Areca Technology Corporation All rights reserved
**
** Web site: www.areca.com.tw
** E-mail: [email protected]
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License version 2 as
** published by the Free Software Foundation.
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
*******************************************************************************
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
** Firmware Specification, see Documentation/scsi/arcmsr_spec.rst
*******************************************************************************
*/
#include <linux/module.h>
#include <linux/reboot.h>
#include <linux/spinlock.h>
#include <linux/pci_ids.h>
#include <linux/interrupt.h>
#include <linux/moduleparam.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/timer.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/circ_buf.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <linux/uaccess.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsicam.h>
#include "arcmsr.h"
MODULE_AUTHOR("Nick Cheng, C.L. Huang <[email protected]>");
MODULE_DESCRIPTION("Areca ARC11xx/12xx/16xx/188x SAS/SATA RAID Controller Driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(ARCMSR_DRIVER_VERSION);
static int msix_enable = 1;
module_param(msix_enable, int, S_IRUGO);
MODULE_PARM_DESC(msix_enable, "Enable MSI-X interrupt(0 ~ 1), msix_enable=1(enable), =0(disable)");
static int msi_enable = 1;
module_param(msi_enable, int, S_IRUGO);
MODULE_PARM_DESC(msi_enable, "Enable MSI interrupt(0 ~ 1), msi_enable=1(enable), =0(disable)");
static int host_can_queue = ARCMSR_DEFAULT_OUTSTANDING_CMD;
module_param(host_can_queue, int, S_IRUGO);
MODULE_PARM_DESC(host_can_queue, " adapter queue depth(32 ~ 1024), default is 128");
static int cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN;
module_param(cmd_per_lun, int, S_IRUGO);
MODULE_PARM_DESC(cmd_per_lun, " device queue depth(1 ~ 128), default is 32");
static int dma_mask_64 = 0;
module_param(dma_mask_64, int, S_IRUGO);
MODULE_PARM_DESC(dma_mask_64, " set DMA mask to 64 bits(0 ~ 1), dma_mask_64=1(64 bits), =0(32 bits)");
static int set_date_time = 0;
module_param(set_date_time, int, S_IRUGO);
MODULE_PARM_DESC(set_date_time, " send date, time to iop(0 ~ 1), set_date_time=1(enable), default(=0) is disable");
static int cmd_timeout = ARCMSR_DEFAULT_TIMEOUT;
module_param(cmd_timeout, int, S_IRUGO);
MODULE_PARM_DESC(cmd_timeout, " scsi cmd timeout(0 ~ 120 sec.), default is 90");
#define ARCMSR_SLEEPTIME 10
#define ARCMSR_RETRYCOUNT 12
static wait_queue_head_t wait_q;
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd);
static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
static int arcmsr_abort(struct scsi_cmnd *);
static int arcmsr_bus_reset(struct scsi_cmnd *);
static int arcmsr_bios_param(struct scsi_device *sdev,
struct block_device *bdev, sector_t capacity, int *info);
static int arcmsr_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd);
static int arcmsr_probe(struct pci_dev *pdev,
const struct pci_device_id *id);
static int __maybe_unused arcmsr_suspend(struct device *dev);
static int __maybe_unused arcmsr_resume(struct device *dev);
static void arcmsr_remove(struct pci_dev *pdev);
static void arcmsr_shutdown(struct pci_dev *pdev);
static void arcmsr_iop_init(struct AdapterControlBlock *acb);
static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb);
static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb);
static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
u32 intmask_org);
static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
static void arcmsr_hbaA_flush_cache(struct AdapterControlBlock *acb);
static void arcmsr_hbaB_flush_cache(struct AdapterControlBlock *acb);
static void arcmsr_request_device_map(struct timer_list *t);
static void arcmsr_message_isr_bh_fn(struct work_struct *work);
static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
static void arcmsr_hbaC_message_isr(struct AdapterControlBlock *pACB);
static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb);
static void arcmsr_hbaE_message_isr(struct AdapterControlBlock *acb);
static void arcmsr_hbaE_postqueue_isr(struct AdapterControlBlock *acb);
static void arcmsr_hbaF_postqueue_isr(struct AdapterControlBlock *acb);
static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
static const char *arcmsr_info(struct Scsi_Host *);
static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
static void arcmsr_free_irq(struct pci_dev *, struct AdapterControlBlock *);
static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb);
static void arcmsr_set_iop_datetime(struct timer_list *);
static int arcmsr_slave_config(struct scsi_device *sdev);
static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth)
{
if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
queue_depth = ARCMSR_MAX_CMD_PERLUN;
return scsi_change_queue_depth(sdev, queue_depth);
}
static const struct scsi_host_template arcmsr_scsi_host_template = {
.module = THIS_MODULE,
.proc_name = ARCMSR_NAME,
.name = "Areca SAS/SATA RAID driver",
.info = arcmsr_info,
.queuecommand = arcmsr_queue_command,
.eh_abort_handler = arcmsr_abort,
.eh_bus_reset_handler = arcmsr_bus_reset,
.bios_param = arcmsr_bios_param,
.slave_configure = arcmsr_slave_config,
.change_queue_depth = arcmsr_adjust_disk_queue_depth,
.can_queue = ARCMSR_DEFAULT_OUTSTANDING_CMD,
.this_id = ARCMSR_SCSI_INITIATOR_ID,
.sg_tablesize = ARCMSR_DEFAULT_SG_ENTRIES,
.max_sectors = ARCMSR_MAX_XFER_SECTORS_C,
.cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN,
.shost_groups = arcmsr_host_groups,
.no_write_same = 1,
};
static struct pci_device_id arcmsr_device_id_table[] = {
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1200),
.driver_data = ACB_ADAPTER_TYPE_B},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1201),
.driver_data = ACB_ADAPTER_TYPE_B},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202),
.driver_data = ACB_ADAPTER_TYPE_B},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1203),
.driver_data = ACB_ADAPTER_TYPE_B},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1214),
.driver_data = ACB_ADAPTER_TYPE_D},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681),
.driver_data = ACB_ADAPTER_TYPE_A},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1880),
.driver_data = ACB_ADAPTER_TYPE_C},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1884),
.driver_data = ACB_ADAPTER_TYPE_E},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1886),
.driver_data = ACB_ADAPTER_TYPE_F},
{0, 0}, /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
static SIMPLE_DEV_PM_OPS(arcmsr_pm_ops, arcmsr_suspend, arcmsr_resume);
static struct pci_driver arcmsr_pci_driver = {
.name = "arcmsr",
.id_table = arcmsr_device_id_table,
.probe = arcmsr_probe,
.remove = arcmsr_remove,
.driver.pm = &arcmsr_pm_ops,
.shutdown = arcmsr_shutdown,
};
/*
****************************************************************************
****************************************************************************
*/
static void arcmsr_free_io_queue(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_B:
case ACB_ADAPTER_TYPE_D:
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:
dma_free_coherent(&acb->pdev->dev, acb->ioqueue_size,
acb->dma_coherent2, acb->dma_coherent_handle2);
break;
}
}
static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
{
struct pci_dev *pdev = acb->pdev;
switch (acb->adapter_type){
case ACB_ADAPTER_TYPE_A:{
acb->pmuA = ioremap(pci_resource_start(pdev,0), pci_resource_len(pdev,0));
if (!acb->pmuA) {
printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
return false;
}
break;
}
case ACB_ADAPTER_TYPE_B:{
void __iomem *mem_base0, *mem_base1;
mem_base0 = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
if (!mem_base0) {
printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
return false;
}
mem_base1 = ioremap(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
if (!mem_base1) {
iounmap(mem_base0);
printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
return false;
}
acb->mem_base0 = mem_base0;
acb->mem_base1 = mem_base1;
break;
}
case ACB_ADAPTER_TYPE_C:{
acb->pmuC = ioremap(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1));
if (!acb->pmuC) {
printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
return false;
}
if (readl(&acb->pmuC->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &acb->pmuC->outbound_doorbell_clear);/*clear interrupt*/
return true;
}
break;
}
case ACB_ADAPTER_TYPE_D: {
void __iomem *mem_base0;
unsigned long addr, range;
addr = (unsigned long)pci_resource_start(pdev, 0);
range = pci_resource_len(pdev, 0);
mem_base0 = ioremap(addr, range);
if (!mem_base0) {
pr_notice("arcmsr%d: memory mapping region fail\n",
acb->host->host_no);
return false;
}
acb->mem_base0 = mem_base0;
break;
}
case ACB_ADAPTER_TYPE_E: {
acb->pmuE = ioremap(pci_resource_start(pdev, 1),
pci_resource_len(pdev, 1));
if (!acb->pmuE) {
pr_notice("arcmsr%d: memory mapping region fail \n",
acb->host->host_no);
return false;
}
writel(0, &acb->pmuE->host_int_status); /*clear interrupt*/
writel(ARCMSR_HBEMU_DOORBELL_SYNC, &acb->pmuE->iobound_doorbell); /* synchronize doorbell to 0 */
acb->in_doorbell = 0;
acb->out_doorbell = 0;
break;
}
case ACB_ADAPTER_TYPE_F: {
acb->pmuF = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
if (!acb->pmuF) {
pr_notice("arcmsr%d: memory mapping region fail\n",
acb->host->host_no);
return false;
}
writel(0, &acb->pmuF->host_int_status); /* clear interrupt */
writel(ARCMSR_HBFMU_DOORBELL_SYNC, &acb->pmuF->iobound_doorbell);
acb->in_doorbell = 0;
acb->out_doorbell = 0;
break;
}
}
return true;
}
static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
iounmap(acb->pmuA);
break;
case ACB_ADAPTER_TYPE_B:
iounmap(acb->mem_base0);
iounmap(acb->mem_base1);
break;
case ACB_ADAPTER_TYPE_C:
iounmap(acb->pmuC);
break;
case ACB_ADAPTER_TYPE_D:
iounmap(acb->mem_base0);
break;
case ACB_ADAPTER_TYPE_E:
iounmap(acb->pmuE);
break;
case ACB_ADAPTER_TYPE_F:
iounmap(acb->pmuF);
break;
}
}
static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
{
irqreturn_t handle_state;
struct AdapterControlBlock *acb = dev_id;
handle_state = arcmsr_interrupt(acb);
return handle_state;
}
static int arcmsr_bios_param(struct scsi_device *sdev,
struct block_device *bdev, sector_t capacity, int *geom)
{
int heads, sectors, cylinders, total_capacity;
if (scsi_partsize(bdev, capacity, geom))
return 0;
total_capacity = capacity;
heads = 64;
sectors = 32;
cylinders = total_capacity / (heads * sectors);
if (cylinders > 1024) {
heads = 255;
sectors = 63;
cylinders = total_capacity / (heads * sectors);
}
geom[0] = heads;
geom[1] = sectors;
geom[2] = cylinders;
return 0;
}
static uint8_t arcmsr_hbaA_wait_msgint_ready(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
int i;
for (i = 0; i < 2000; i++) {
if (readl(®->outbound_intstatus) &
ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
®->outbound_intstatus);
return true;
}
msleep(10);
} /* max 20 seconds */
return false;
}
static uint8_t arcmsr_hbaB_wait_msgint_ready(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
int i;
for (i = 0; i < 2000; i++) {
if (readl(reg->iop2drv_doorbell)
& ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
reg->iop2drv_doorbell);
writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
reg->drv2iop_doorbell);
return true;
}
msleep(10);
} /* max 20 seconds */
return false;
}
static uint8_t arcmsr_hbaC_wait_msgint_ready(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
int i;
for (i = 0; i < 2000; i++) {
if (readl(&phbcmu->outbound_doorbell)
& ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR,
&phbcmu->outbound_doorbell_clear); /*clear interrupt*/
return true;
}
msleep(10);
} /* max 20 seconds */
return false;
}
static bool arcmsr_hbaD_wait_msgint_ready(struct AdapterControlBlock *pACB)
{
struct MessageUnit_D *reg = pACB->pmuD;
int i;
for (i = 0; i < 2000; i++) {
if (readl(reg->outbound_doorbell)
& ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE) {
writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE,
reg->outbound_doorbell);
return true;
}
msleep(10);
} /* max 20 seconds */
return false;
}
static bool arcmsr_hbaE_wait_msgint_ready(struct AdapterControlBlock *pACB)
{
int i;
uint32_t read_doorbell;
struct MessageUnit_E __iomem *phbcmu = pACB->pmuE;
for (i = 0; i < 2000; i++) {
read_doorbell = readl(&phbcmu->iobound_doorbell);
if ((read_doorbell ^ pACB->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
writel(0, &phbcmu->host_int_status); /*clear interrupt*/
pACB->in_doorbell = read_doorbell;
return true;
}
msleep(10);
} /* max 20 seconds */
return false;
}
static void arcmsr_hbaA_flush_cache(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
int retry_count = 30;
writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
do {
if (arcmsr_hbaA_wait_msgint_ready(acb))
break;
else {
retry_count--;
printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
timeout, retry count down = %d \n", acb->host->host_no, retry_count);
}
} while (retry_count != 0);
}
static void arcmsr_hbaB_flush_cache(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
int retry_count = 30;
writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell);
do {
if (arcmsr_hbaB_wait_msgint_ready(acb))
break;
else {
retry_count--;
printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
timeout,retry count down = %d \n", acb->host->host_no, retry_count);
}
} while (retry_count != 0);
}
static void arcmsr_hbaC_flush_cache(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C __iomem *reg = pACB->pmuC;
int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
do {
if (arcmsr_hbaC_wait_msgint_ready(pACB)) {
break;
} else {
retry_count--;
printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
timeout,retry count down = %d \n", pACB->host->host_no, retry_count);
}
} while (retry_count != 0);
return;
}
static void arcmsr_hbaD_flush_cache(struct AdapterControlBlock *pACB)
{
int retry_count = 15;
struct MessageUnit_D *reg = pACB->pmuD;
writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, reg->inbound_msgaddr0);
do {
if (arcmsr_hbaD_wait_msgint_ready(pACB))
break;
retry_count--;
pr_notice("arcmsr%d: wait 'flush adapter "
"cache' timeout, retry count down = %d\n",
pACB->host->host_no, retry_count);
} while (retry_count != 0);
}
static void arcmsr_hbaE_flush_cache(struct AdapterControlBlock *pACB)
{
int retry_count = 30;
struct MessageUnit_E __iomem *reg = pACB->pmuE;
writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pACB->out_doorbell, ®->iobound_doorbell);
do {
if (arcmsr_hbaE_wait_msgint_ready(pACB))
break;
retry_count--;
pr_notice("arcmsr%d: wait 'flush adapter "
"cache' timeout, retry count down = %d\n",
pACB->host->host_no, retry_count);
} while (retry_count != 0);
}
static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
arcmsr_hbaA_flush_cache(acb);
break;
case ACB_ADAPTER_TYPE_B:
arcmsr_hbaB_flush_cache(acb);
break;
case ACB_ADAPTER_TYPE_C:
arcmsr_hbaC_flush_cache(acb);
break;
case ACB_ADAPTER_TYPE_D:
arcmsr_hbaD_flush_cache(acb);
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:
arcmsr_hbaE_flush_cache(acb);
break;
}
}
static void arcmsr_hbaB_assign_regAddr(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
if (acb->pdev->device == PCI_DEVICE_ID_ARECA_1203) {
reg->drv2iop_doorbell = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_1203);
reg->drv2iop_doorbell_mask = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_MASK_1203);
reg->iop2drv_doorbell = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_1203);
reg->iop2drv_doorbell_mask = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_MASK_1203);
} else {
reg->drv2iop_doorbell= MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL);
reg->drv2iop_doorbell_mask = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_MASK);
reg->iop2drv_doorbell = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL);
reg->iop2drv_doorbell_mask = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_MASK);
}
reg->message_wbuffer = MEM_BASE1(ARCMSR_MESSAGE_WBUFFER);
reg->message_rbuffer = MEM_BASE1(ARCMSR_MESSAGE_RBUFFER);
reg->message_rwbuffer = MEM_BASE1(ARCMSR_MESSAGE_RWBUFFER);
}
static void arcmsr_hbaD_assign_regAddr(struct AdapterControlBlock *acb)
{
struct MessageUnit_D *reg = acb->pmuD;
reg->chip_id = MEM_BASE0(ARCMSR_ARC1214_CHIP_ID);
reg->cpu_mem_config = MEM_BASE0(ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION);
reg->i2o_host_interrupt_mask = MEM_BASE0(ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK);
reg->sample_at_reset = MEM_BASE0(ARCMSR_ARC1214_SAMPLE_RESET);
reg->reset_request = MEM_BASE0(ARCMSR_ARC1214_RESET_REQUEST);
reg->host_int_status = MEM_BASE0(ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS);
reg->pcief0_int_enable = MEM_BASE0(ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE);
reg->inbound_msgaddr0 = MEM_BASE0(ARCMSR_ARC1214_INBOUND_MESSAGE0);
reg->inbound_msgaddr1 = MEM_BASE0(ARCMSR_ARC1214_INBOUND_MESSAGE1);
reg->outbound_msgaddr0 = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_MESSAGE0);
reg->outbound_msgaddr1 = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_MESSAGE1);
reg->inbound_doorbell = MEM_BASE0(ARCMSR_ARC1214_INBOUND_DOORBELL);
reg->outbound_doorbell = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_DOORBELL);
reg->outbound_doorbell_enable = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE);
reg->inboundlist_base_low = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW);
reg->inboundlist_base_high = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH);
reg->inboundlist_write_pointer = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER);
reg->outboundlist_base_low = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW);
reg->outboundlist_base_high = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH);
reg->outboundlist_copy_pointer = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER);
reg->outboundlist_read_pointer = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER);
reg->outboundlist_interrupt_cause = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE);
reg->outboundlist_interrupt_enable = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE);
reg->message_wbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_WBUFFER);
reg->message_rbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RBUFFER);
reg->msgcode_rwbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RWBUFFER);
}
static void arcmsr_hbaF_assign_regAddr(struct AdapterControlBlock *acb)
{
dma_addr_t host_buffer_dma;
struct MessageUnit_F __iomem *pmuF;
memset(acb->dma_coherent2, 0xff, acb->completeQ_size);
acb->message_wbuffer = (uint32_t *)round_up((unsigned long)acb->dma_coherent2 +
acb->completeQ_size, 4);
acb->message_rbuffer = ((void *)acb->message_wbuffer) + 0x100;
acb->msgcode_rwbuffer = ((void *)acb->message_wbuffer) + 0x200;
memset((void *)acb->message_wbuffer, 0, MESG_RW_BUFFER_SIZE);
host_buffer_dma = round_up(acb->dma_coherent_handle2 + acb->completeQ_size, 4);
pmuF = acb->pmuF;
/* host buffer low address, bit0:1 all buffer active */
writel(lower_32_bits(host_buffer_dma | 1), &pmuF->inbound_msgaddr0);
/* host buffer high address */
writel(upper_32_bits(host_buffer_dma), &pmuF->inbound_msgaddr1);
/* set host buffer physical address */
writel(ARCMSR_HBFMU_DOORBELL_SYNC1, &pmuF->iobound_doorbell);
}
static bool arcmsr_alloc_io_queue(struct AdapterControlBlock *acb)
{
bool rtn = true;
void *dma_coherent;
dma_addr_t dma_coherent_handle;
struct pci_dev *pdev = acb->pdev;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_B: {
acb->ioqueue_size = roundup(sizeof(struct MessageUnit_B), 32);
dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
&dma_coherent_handle, GFP_KERNEL);
if (!dma_coherent) {
pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
return false;
}
acb->dma_coherent_handle2 = dma_coherent_handle;
acb->dma_coherent2 = dma_coherent;
acb->pmuB = (struct MessageUnit_B *)dma_coherent;
arcmsr_hbaB_assign_regAddr(acb);
}
break;
case ACB_ADAPTER_TYPE_D: {
acb->ioqueue_size = roundup(sizeof(struct MessageUnit_D), 32);
dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
&dma_coherent_handle, GFP_KERNEL);
if (!dma_coherent) {
pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
return false;
}
acb->dma_coherent_handle2 = dma_coherent_handle;
acb->dma_coherent2 = dma_coherent;
acb->pmuD = (struct MessageUnit_D *)dma_coherent;
arcmsr_hbaD_assign_regAddr(acb);
}
break;
case ACB_ADAPTER_TYPE_E: {
uint32_t completeQ_size;
completeQ_size = sizeof(struct deliver_completeQ) * ARCMSR_MAX_HBE_DONEQUEUE + 128;
acb->ioqueue_size = roundup(completeQ_size, 32);
dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
&dma_coherent_handle, GFP_KERNEL);
if (!dma_coherent){
pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
return false;
}
acb->dma_coherent_handle2 = dma_coherent_handle;
acb->dma_coherent2 = dma_coherent;
acb->pCompletionQ = dma_coherent;
acb->completionQ_entry = acb->ioqueue_size / sizeof(struct deliver_completeQ);
acb->doneq_index = 0;
}
break;
case ACB_ADAPTER_TYPE_F: {
uint32_t QueueDepth;
uint32_t depthTbl[] = {256, 512, 1024, 128, 64, 32};
arcmsr_wait_firmware_ready(acb);
QueueDepth = depthTbl[readl(&acb->pmuF->outbound_msgaddr1) & 7];
acb->completeQ_size = sizeof(struct deliver_completeQ) * QueueDepth + 128;
acb->ioqueue_size = roundup(acb->completeQ_size + MESG_RW_BUFFER_SIZE, 32);
dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
&dma_coherent_handle, GFP_KERNEL);
if (!dma_coherent) {
pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
return false;
}
acb->dma_coherent_handle2 = dma_coherent_handle;
acb->dma_coherent2 = dma_coherent;
acb->pCompletionQ = dma_coherent;
acb->completionQ_entry = acb->completeQ_size / sizeof(struct deliver_completeQ);
acb->doneq_index = 0;
arcmsr_hbaF_assign_regAddr(acb);
}
break;
default:
break;
}
return rtn;
}
static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
{
struct pci_dev *pdev = acb->pdev;
void *dma_coherent;
dma_addr_t dma_coherent_handle;
struct CommandControlBlock *ccb_tmp;
int i = 0, j = 0;
unsigned long cdb_phyaddr, next_ccb_phy;
unsigned long roundup_ccbsize;
unsigned long max_xfer_len;
unsigned long max_sg_entrys;
uint32_t firm_config_version, curr_phy_upper32;
for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
acb->devstate[i][j] = ARECA_RAID_GONE;
max_xfer_len = ARCMSR_MAX_XFER_LEN;
max_sg_entrys = ARCMSR_DEFAULT_SG_ENTRIES;
firm_config_version = acb->firm_cfg_version;
if((firm_config_version & 0xFF) >= 3){
max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH << ((firm_config_version >> 8) & 0xFF)) * 1024;/* max 4M byte */
max_sg_entrys = (max_xfer_len/4096);
}
acb->host->max_sectors = max_xfer_len/512;
acb->host->sg_tablesize = max_sg_entrys;
roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
acb->uncache_size = roundup_ccbsize * acb->maxFreeCCB;
if (acb->adapter_type != ACB_ADAPTER_TYPE_F)
acb->uncache_size += acb->ioqueue_size;
dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
if(!dma_coherent){
printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
return -ENOMEM;
}
acb->dma_coherent = dma_coherent;
acb->dma_coherent_handle = dma_coherent_handle;
memset(dma_coherent, 0, acb->uncache_size);
acb->ccbsize = roundup_ccbsize;
ccb_tmp = dma_coherent;
curr_phy_upper32 = upper_32_bits(dma_coherent_handle);
acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
for(i = 0; i < acb->maxFreeCCB; i++){
cdb_phyaddr = (unsigned long)dma_coherent_handle + offsetof(struct CommandControlBlock, arcmsr_cdb);
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
case ACB_ADAPTER_TYPE_B:
ccb_tmp->cdb_phyaddr = cdb_phyaddr >> 5;
break;
case ACB_ADAPTER_TYPE_C:
case ACB_ADAPTER_TYPE_D:
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:
ccb_tmp->cdb_phyaddr = cdb_phyaddr;
break;
}
acb->pccb_pool[i] = ccb_tmp;
ccb_tmp->acb = acb;
ccb_tmp->smid = (u32)i << 16;
INIT_LIST_HEAD(&ccb_tmp->list);
next_ccb_phy = dma_coherent_handle + roundup_ccbsize;
if (upper_32_bits(next_ccb_phy) != curr_phy_upper32) {
acb->maxFreeCCB = i;
acb->host->can_queue = i;
break;
}
else
list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
ccb_tmp = (struct CommandControlBlock *)((unsigned long)ccb_tmp + roundup_ccbsize);
dma_coherent_handle = next_ccb_phy;
}
if (acb->adapter_type != ACB_ADAPTER_TYPE_F) {
acb->dma_coherent_handle2 = dma_coherent_handle;
acb->dma_coherent2 = ccb_tmp;
}
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_B:
acb->pmuB = (struct MessageUnit_B *)acb->dma_coherent2;
arcmsr_hbaB_assign_regAddr(acb);
break;
case ACB_ADAPTER_TYPE_D:
acb->pmuD = (struct MessageUnit_D *)acb->dma_coherent2;
arcmsr_hbaD_assign_regAddr(acb);
break;
case ACB_ADAPTER_TYPE_E:
acb->pCompletionQ = acb->dma_coherent2;
acb->completionQ_entry = acb->ioqueue_size / sizeof(struct deliver_completeQ);
acb->doneq_index = 0;
break;
}
return 0;
}
static void arcmsr_message_isr_bh_fn(struct work_struct *work)
{
struct AdapterControlBlock *acb = container_of(work,
struct AdapterControlBlock, arcmsr_do_message_isr_bh);
char *acb_dev_map = (char *)acb->device_map;
uint32_t __iomem *signature = NULL;
char __iomem *devicemap = NULL;
int target, lun;
struct scsi_device *psdev;
char diff, temp;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
signature = (uint32_t __iomem *)(®->message_rwbuffer[0]);
devicemap = (char __iomem *)(®->message_rwbuffer[21]);
break;
}
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
signature = (uint32_t __iomem *)(®->message_rwbuffer[0]);
devicemap = (char __iomem *)(®->message_rwbuffer[21]);
break;
}
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
signature = (uint32_t __iomem *)(®->msgcode_rwbuffer[0]);
devicemap = (char __iomem *)(®->msgcode_rwbuffer[21]);
break;
}
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
signature = (uint32_t __iomem *)(®->msgcode_rwbuffer[0]);
devicemap = (char __iomem *)(®->msgcode_rwbuffer[21]);
break;
}
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
signature = (uint32_t __iomem *)(®->msgcode_rwbuffer[0]);
devicemap = (char __iomem *)(®->msgcode_rwbuffer[21]);
break;
}
case ACB_ADAPTER_TYPE_F: {
signature = (uint32_t __iomem *)(&acb->msgcode_rwbuffer[0]);
devicemap = (char __iomem *)(&acb->msgcode_rwbuffer[21]);
break;
}
}
if (readl(signature) != ARCMSR_SIGNATURE_GET_CONFIG)
return;
for (target = 0; target < ARCMSR_MAX_TARGETID - 1;
target++) {
temp = readb(devicemap);
diff = (*acb_dev_map) ^ temp;
if (diff != 0) {
*acb_dev_map = temp;
for (lun = 0; lun < ARCMSR_MAX_TARGETLUN;
lun++) {
if ((diff & 0x01) == 1 &&
(temp & 0x01) == 1) {
scsi_add_device(acb->host,
0, target, lun);
} else if ((diff & 0x01) == 1
&& (temp & 0x01) == 0) {
psdev = scsi_device_lookup(acb->host,
0, target, lun);
if (psdev != NULL) {
scsi_remove_device(psdev);
scsi_device_put(psdev);
}
}
temp >>= 1;
diff >>= 1;
}
}
devicemap++;
acb_dev_map++;
}
acb->acb_flags &= ~ACB_F_MSG_GET_CONFIG;
}
static int
arcmsr_request_irq(struct pci_dev *pdev, struct AdapterControlBlock *acb)
{
unsigned long flags;
int nvec, i;
if (msix_enable == 0)
goto msi_int0;
nvec = pci_alloc_irq_vectors(pdev, 1, ARCMST_NUM_MSIX_VECTORS,
PCI_IRQ_MSIX);
if (nvec > 0) {
pr_info("arcmsr%d: msi-x enabled\n", acb->host->host_no);
flags = 0;
} else {
msi_int0:
if (msi_enable == 1) {
nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
if (nvec == 1) {
dev_info(&pdev->dev, "msi enabled\n");
goto msi_int1;
}
}
nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_LEGACY);
if (nvec < 1)
return FAILED;
msi_int1:
flags = IRQF_SHARED;
}
acb->vector_count = nvec;
for (i = 0; i < nvec; i++) {
if (request_irq(pci_irq_vector(pdev, i), arcmsr_do_interrupt,
flags, "arcmsr", acb)) {
pr_warn("arcmsr%d: request_irq =%d failed!\n",
acb->host->host_no, pci_irq_vector(pdev, i));
goto out_free_irq;
}
}
return SUCCESS;
out_free_irq:
while (--i >= 0)
free_irq(pci_irq_vector(pdev, i), acb);
pci_free_irq_vectors(pdev);
return FAILED;
}
static void arcmsr_init_get_devmap_timer(struct AdapterControlBlock *pacb)
{
INIT_WORK(&pacb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
pacb->fw_flag = FW_NORMAL;
timer_setup(&pacb->eternal_timer, arcmsr_request_device_map, 0);
pacb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
add_timer(&pacb->eternal_timer);
}
static void arcmsr_init_set_datetime_timer(struct AdapterControlBlock *pacb)
{
timer_setup(&pacb->refresh_timer, arcmsr_set_iop_datetime, 0);
pacb->refresh_timer.expires = jiffies + msecs_to_jiffies(60 * 1000);
add_timer(&pacb->refresh_timer);
}
static int arcmsr_set_dma_mask(struct AdapterControlBlock *acb)
{
struct pci_dev *pcidev = acb->pdev;
if (IS_DMA64) {
if (((acb->adapter_type == ACB_ADAPTER_TYPE_A) && !dma_mask_64) ||
dma_set_mask(&pcidev->dev, DMA_BIT_MASK(64)))
goto dma32;
if (acb->adapter_type <= ACB_ADAPTER_TYPE_B)
return 0;
if (dma_set_coherent_mask(&pcidev->dev, DMA_BIT_MASK(64)) ||
dma_set_mask_and_coherent(&pcidev->dev, DMA_BIT_MASK(64))) {
printk("arcmsr: set DMA 64 mask failed\n");
return -ENXIO;
}
} else {
dma32:
if (dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32)) ||
dma_set_coherent_mask(&pcidev->dev, DMA_BIT_MASK(32)) ||
dma_set_mask_and_coherent(&pcidev->dev, DMA_BIT_MASK(32))) {
printk("arcmsr: set DMA 32-bit mask failed\n");
return -ENXIO;
}
}
return 0;
}
static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct Scsi_Host *host;
struct AdapterControlBlock *acb;
uint8_t bus,dev_fun;
int error;
error = pci_enable_device(pdev);
if(error){
return -ENODEV;
}
host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof(struct AdapterControlBlock));
if(!host){
goto pci_disable_dev;
}
init_waitqueue_head(&wait_q);
bus = pdev->bus->number;
dev_fun = pdev->devfn;
acb = (struct AdapterControlBlock *) host->hostdata;
memset(acb,0,sizeof(struct AdapterControlBlock));
acb->pdev = pdev;
acb->adapter_type = id->driver_data;
if (arcmsr_set_dma_mask(acb))
goto scsi_host_release;
acb->host = host;
host->max_lun = ARCMSR_MAX_TARGETLUN;
host->max_id = ARCMSR_MAX_TARGETID; /*16:8*/
host->max_cmd_len = 16; /*this is issue of 64bit LBA ,over 2T byte*/
if ((host_can_queue < ARCMSR_MIN_OUTSTANDING_CMD) || (host_can_queue > ARCMSR_MAX_OUTSTANDING_CMD))
host_can_queue = ARCMSR_DEFAULT_OUTSTANDING_CMD;
host->can_queue = host_can_queue; /* max simultaneous cmds */
if ((cmd_per_lun < ARCMSR_MIN_CMD_PERLUN) || (cmd_per_lun > ARCMSR_MAX_CMD_PERLUN))
cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN;
host->cmd_per_lun = cmd_per_lun;
host->this_id = ARCMSR_SCSI_INITIATOR_ID;
host->unique_id = (bus << 8) | dev_fun;
pci_set_drvdata(pdev, host);
pci_set_master(pdev);
error = pci_request_regions(pdev, "arcmsr");
if(error){
goto scsi_host_release;
}
spin_lock_init(&acb->eh_lock);
spin_lock_init(&acb->ccblist_lock);
spin_lock_init(&acb->postq_lock);
spin_lock_init(&acb->doneq_lock);
spin_lock_init(&acb->rqbuffer_lock);
spin_lock_init(&acb->wqbuffer_lock);
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
ACB_F_MESSAGE_RQBUFFER_CLEARED |
ACB_F_MESSAGE_WQBUFFER_READED);
acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
INIT_LIST_HEAD(&acb->ccb_free_list);
error = arcmsr_remap_pciregion(acb);
if(!error){
goto pci_release_regs;
}
error = arcmsr_alloc_io_queue(acb);
if (!error)
goto unmap_pci_region;
error = arcmsr_get_firmware_spec(acb);
if(!error){
goto free_hbb_mu;
}
if (acb->adapter_type != ACB_ADAPTER_TYPE_F)
arcmsr_free_io_queue(acb);
error = arcmsr_alloc_ccb_pool(acb);
if(error){
goto unmap_pci_region;
}
error = scsi_add_host(host, &pdev->dev);
if(error){
goto free_ccb_pool;
}
if (arcmsr_request_irq(pdev, acb) == FAILED)
goto scsi_host_remove;
arcmsr_iop_init(acb);
arcmsr_init_get_devmap_timer(acb);
if (set_date_time)
arcmsr_init_set_datetime_timer(acb);
if(arcmsr_alloc_sysfs_attr(acb))
goto out_free_sysfs;
scsi_scan_host(host);
return 0;
out_free_sysfs:
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
del_timer_sync(&acb->eternal_timer);
flush_work(&acb->arcmsr_do_message_isr_bh);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
arcmsr_free_irq(pdev, acb);
scsi_host_remove:
scsi_remove_host(host);
free_ccb_pool:
arcmsr_free_ccb_pool(acb);
goto unmap_pci_region;
free_hbb_mu:
arcmsr_free_io_queue(acb);
unmap_pci_region:
arcmsr_unmap_pciregion(acb);
pci_release_regs:
pci_release_regions(pdev);
scsi_host_release:
scsi_host_put(host);
pci_disable_dev:
pci_disable_device(pdev);
return -ENODEV;
}
static void arcmsr_free_irq(struct pci_dev *pdev,
struct AdapterControlBlock *acb)
{
int i;
for (i = 0; i < acb->vector_count; i++)
free_irq(pci_irq_vector(pdev, i), acb);
pci_free_irq_vectors(pdev);
}
static int __maybe_unused arcmsr_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *)host->hostdata;
arcmsr_disable_outbound_ints(acb);
arcmsr_free_irq(pdev, acb);
del_timer_sync(&acb->eternal_timer);
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
flush_work(&acb->arcmsr_do_message_isr_bh);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
return 0;
}
static int __maybe_unused arcmsr_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *)host->hostdata;
if (arcmsr_set_dma_mask(acb))
goto controller_unregister;
if (arcmsr_request_irq(pdev, acb) == FAILED)
goto controller_stop;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
uint32_t i;
for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
reg->post_qbuffer[i] = 0;
reg->done_qbuffer[i] = 0;
}
reg->postq_index = 0;
reg->doneq_index = 0;
break;
}
case ACB_ADAPTER_TYPE_E:
writel(0, &acb->pmuE->host_int_status);
writel(ARCMSR_HBEMU_DOORBELL_SYNC, &acb->pmuE->iobound_doorbell);
acb->in_doorbell = 0;
acb->out_doorbell = 0;
acb->doneq_index = 0;
break;
case ACB_ADAPTER_TYPE_F:
writel(0, &acb->pmuF->host_int_status);
writel(ARCMSR_HBFMU_DOORBELL_SYNC, &acb->pmuF->iobound_doorbell);
acb->in_doorbell = 0;
acb->out_doorbell = 0;
acb->doneq_index = 0;
arcmsr_hbaF_assign_regAddr(acb);
break;
}
arcmsr_iop_init(acb);
arcmsr_init_get_devmap_timer(acb);
if (set_date_time)
arcmsr_init_set_datetime_timer(acb);
return 0;
controller_stop:
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
controller_unregister:
scsi_remove_host(host);
arcmsr_free_ccb_pool(acb);
if (acb->adapter_type == ACB_ADAPTER_TYPE_F)
arcmsr_free_io_queue(acb);
arcmsr_unmap_pciregion(acb);
scsi_host_put(host);
return -ENODEV;
}
static uint8_t arcmsr_hbaA_abort_allcmd(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
printk(KERN_NOTICE
"arcmsr%d: wait 'abort all outstanding command' timeout\n"
, acb->host->host_no);
return false;
}
return true;
}
static uint8_t arcmsr_hbaB_abort_allcmd(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_NOTICE
"arcmsr%d: wait 'abort all outstanding command' timeout\n"
, acb->host->host_no);
return false;
}
return true;
}
static uint8_t arcmsr_hbaC_abort_allcmd(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C __iomem *reg = pACB->pmuC;
writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
printk(KERN_NOTICE
"arcmsr%d: wait 'abort all outstanding command' timeout\n"
, pACB->host->host_no);
return false;
}
return true;
}
static uint8_t arcmsr_hbaD_abort_allcmd(struct AdapterControlBlock *pACB)
{
struct MessageUnit_D *reg = pACB->pmuD;
writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, reg->inbound_msgaddr0);
if (!arcmsr_hbaD_wait_msgint_ready(pACB)) {
pr_notice("arcmsr%d: wait 'abort all outstanding "
"command' timeout\n", pACB->host->host_no);
return false;
}
return true;
}
static uint8_t arcmsr_hbaE_abort_allcmd(struct AdapterControlBlock *pACB)
{
struct MessageUnit_E __iomem *reg = pACB->pmuE;
writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0);
pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pACB->out_doorbell, ®->iobound_doorbell);
if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
pr_notice("arcmsr%d: wait 'abort all outstanding "
"command' timeout\n", pACB->host->host_no);
return false;
}
return true;
}
static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
{
uint8_t rtnval = 0;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
rtnval = arcmsr_hbaA_abort_allcmd(acb);
break;
case ACB_ADAPTER_TYPE_B:
rtnval = arcmsr_hbaB_abort_allcmd(acb);
break;
case ACB_ADAPTER_TYPE_C:
rtnval = arcmsr_hbaC_abort_allcmd(acb);
break;
case ACB_ADAPTER_TYPE_D:
rtnval = arcmsr_hbaD_abort_allcmd(acb);
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:
rtnval = arcmsr_hbaE_abort_allcmd(acb);
break;
}
return rtnval;
}
static void arcmsr_ccb_complete(struct CommandControlBlock *ccb)
{
struct AdapterControlBlock *acb = ccb->acb;
struct scsi_cmnd *pcmd = ccb->pcmd;
unsigned long flags;
atomic_dec(&acb->ccboutstandingcount);
scsi_dma_unmap(ccb->pcmd);
ccb->startdone = ARCMSR_CCB_DONE;
spin_lock_irqsave(&acb->ccblist_lock, flags);
list_add_tail(&ccb->list, &acb->ccb_free_list);
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
scsi_done(pcmd);
}
static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
{
struct scsi_cmnd *pcmd = ccb->pcmd;
pcmd->result = (DID_OK << 16) | SAM_STAT_CHECK_CONDITION;
if (pcmd->sense_buffer) {
struct SENSE_DATA *sensebuffer;
memcpy_and_pad(pcmd->sense_buffer,
SCSI_SENSE_BUFFERSIZE,
ccb->arcmsr_cdb.SenseData,
sizeof(ccb->arcmsr_cdb.SenseData),
0);
sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
sensebuffer->Valid = 1;
}
}
static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
{
u32 orig_mask = 0;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A : {
struct MessageUnit_A __iomem *reg = acb->pmuA;
orig_mask = readl(®->outbound_intmask);
writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \
®->outbound_intmask);
}
break;
case ACB_ADAPTER_TYPE_B : {
struct MessageUnit_B *reg = acb->pmuB;
orig_mask = readl(reg->iop2drv_doorbell_mask);
writel(0, reg->iop2drv_doorbell_mask);
}
break;
case ACB_ADAPTER_TYPE_C:{
struct MessageUnit_C __iomem *reg = acb->pmuC;
/* disable all outbound interrupt */
orig_mask = readl(®->host_int_mask); /* disable outbound message0 int */
writel(orig_mask|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
/* disable all outbound interrupt */
writel(ARCMSR_ARC1214_ALL_INT_DISABLE, reg->pcief0_int_enable);
}
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
orig_mask = readl(®->host_int_mask);
writel(orig_mask | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR, ®->host_int_mask);
readl(®->host_int_mask); /* Dummy readl to force pci flush */
}
break;
}
return orig_mask;
}
static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb,
struct CommandControlBlock *ccb, bool error)
{
uint8_t id, lun;
id = ccb->pcmd->device->id;
lun = ccb->pcmd->device->lun;
if (!error) {
if (acb->devstate[id][lun] == ARECA_RAID_GONE)
acb->devstate[id][lun] = ARECA_RAID_GOOD;
ccb->pcmd->result = DID_OK << 16;
arcmsr_ccb_complete(ccb);
}else{
switch (ccb->arcmsr_cdb.DeviceStatus) {
case ARCMSR_DEV_SELECT_TIMEOUT: {
acb->devstate[id][lun] = ARECA_RAID_GONE;
ccb->pcmd->result = DID_NO_CONNECT << 16;
arcmsr_ccb_complete(ccb);
}
break;
case ARCMSR_DEV_ABORTED:
case ARCMSR_DEV_INIT_FAIL: {
acb->devstate[id][lun] = ARECA_RAID_GONE;
ccb->pcmd->result = DID_BAD_TARGET << 16;
arcmsr_ccb_complete(ccb);
}
break;
case ARCMSR_DEV_CHECK_CONDITION: {
acb->devstate[id][lun] = ARECA_RAID_GOOD;
arcmsr_report_sense_info(ccb);
arcmsr_ccb_complete(ccb);
}
break;
default:
printk(KERN_NOTICE
"arcmsr%d: scsi id = %d lun = %d isr get command error done, \
but got unknown DeviceStatus = 0x%x \n"
, acb->host->host_no
, id
, lun
, ccb->arcmsr_cdb.DeviceStatus);
acb->devstate[id][lun] = ARECA_RAID_GONE;
ccb->pcmd->result = DID_NO_CONNECT << 16;
arcmsr_ccb_complete(ccb);
break;
}
}
}
static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, struct CommandControlBlock *pCCB, bool error)
{
if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
struct scsi_cmnd *abortcmd = pCCB->pcmd;
if (abortcmd) {
abortcmd->result |= DID_ABORT << 16;
arcmsr_ccb_complete(pCCB);
printk(KERN_NOTICE "arcmsr%d: pCCB ='0x%p' isr got aborted command \n",
acb->host->host_no, pCCB);
}
return;
}
printk(KERN_NOTICE "arcmsr%d: isr get an illegal ccb command \
done acb = '0x%p'"
"ccb = '0x%p' ccbacb = '0x%p' startdone = 0x%x"
" ccboutstandingcount = %d \n"
, acb->host->host_no
, acb
, pCCB
, pCCB->acb
, pCCB->startdone
, atomic_read(&acb->ccboutstandingcount));
return;
}
arcmsr_report_ccb_state(acb, pCCB, error);
}
static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
{
int i = 0;
uint32_t flag_ccb;
struct ARCMSR_CDB *pARCMSR_CDB;
bool error;
struct CommandControlBlock *pCCB;
unsigned long ccb_cdb_phy;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
uint32_t outbound_intstatus;
outbound_intstatus = readl(®->outbound_intstatus) &
acb->outbound_int_enable;
/*clear and abort all outbound posted Q*/
writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
while(((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF)
&& (i++ < acb->maxOutstanding)) {
ccb_cdb_phy = (flag_ccb << 5) & 0xffffffff;
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
arcmsr_drain_donequeue(acb, pCCB, error);
}
}
break;
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
/*clear all outbound posted Q*/
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell); /* clear doorbell interrupt */
for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
flag_ccb = reg->done_qbuffer[i];
if (flag_ccb != 0) {
reg->done_qbuffer[i] = 0;
ccb_cdb_phy = (flag_ccb << 5) & 0xffffffff;
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
arcmsr_drain_donequeue(acb, pCCB, error);
}
reg->post_qbuffer[i] = 0;
}
reg->doneq_index = 0;
reg->postq_index = 0;
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
while ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < acb->maxOutstanding)) {
/*need to do*/
flag_ccb = readl(®->outbound_queueport_low);
ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
arcmsr_drain_donequeue(acb, pCCB, error);
}
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *pmu = acb->pmuD;
uint32_t outbound_write_pointer;
uint32_t doneq_index, index_stripped, addressLow, residual, toggle;
unsigned long flags;
residual = atomic_read(&acb->ccboutstandingcount);
for (i = 0; i < residual; i++) {
spin_lock_irqsave(&acb->doneq_lock, flags);
outbound_write_pointer =
pmu->done_qbuffer[0].addressLow + 1;
doneq_index = pmu->doneq_index;
if ((doneq_index & 0xFFF) !=
(outbound_write_pointer & 0xFFF)) {
toggle = doneq_index & 0x4000;
index_stripped = (doneq_index & 0xFFF) + 1;
index_stripped %= ARCMSR_MAX_ARC1214_DONEQUEUE;
pmu->doneq_index = index_stripped ? (index_stripped | toggle) :
((toggle ^ 0x4000) + 1);
doneq_index = pmu->doneq_index;
spin_unlock_irqrestore(&acb->doneq_lock, flags);
addressLow = pmu->done_qbuffer[doneq_index &
0xFFF].addressLow;
ccb_cdb_phy = (addressLow & 0xFFFFFFF0);
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
pARCMSR_CDB = (struct ARCMSR_CDB *)
(acb->vir2phy_offset + ccb_cdb_phy);
pCCB = container_of(pARCMSR_CDB,
struct CommandControlBlock, arcmsr_cdb);
error = (addressLow &
ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ?
true : false;
arcmsr_drain_donequeue(acb, pCCB, error);
writel(doneq_index,
pmu->outboundlist_read_pointer);
} else {
spin_unlock_irqrestore(&acb->doneq_lock, flags);
mdelay(10);
}
}
pmu->postq_index = 0;
pmu->doneq_index = 0x40FF;
}
break;
case ACB_ADAPTER_TYPE_E:
arcmsr_hbaE_postqueue_isr(acb);
break;
case ACB_ADAPTER_TYPE_F:
arcmsr_hbaF_postqueue_isr(acb);
break;
}
}
static void arcmsr_remove_scsi_devices(struct AdapterControlBlock *acb)
{
char *acb_dev_map = (char *)acb->device_map;
int target, lun, i;
struct scsi_device *psdev;
struct CommandControlBlock *ccb;
char temp;
for (i = 0; i < acb->maxFreeCCB; i++) {
ccb = acb->pccb_pool[i];
if (ccb->startdone == ARCMSR_CCB_START) {
ccb->pcmd->result = DID_NO_CONNECT << 16;
scsi_dma_unmap(ccb->pcmd);
scsi_done(ccb->pcmd);
}
}
for (target = 0; target < ARCMSR_MAX_TARGETID; target++) {
temp = *acb_dev_map;
if (temp) {
for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
if (temp & 1) {
psdev = scsi_device_lookup(acb->host,
0, target, lun);
if (psdev != NULL) {
scsi_remove_device(psdev);
scsi_device_put(psdev);
}
}
temp >>= 1;
}
*acb_dev_map = 0;
}
acb_dev_map++;
}
}
static void arcmsr_free_pcidev(struct AdapterControlBlock *acb)
{
struct pci_dev *pdev;
struct Scsi_Host *host;
host = acb->host;
arcmsr_free_sysfs_attr(acb);
scsi_remove_host(host);
flush_work(&acb->arcmsr_do_message_isr_bh);
del_timer_sync(&acb->eternal_timer);
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
pdev = acb->pdev;
arcmsr_free_irq(pdev, acb);
arcmsr_free_ccb_pool(acb);
if (acb->adapter_type == ACB_ADAPTER_TYPE_F)
arcmsr_free_io_queue(acb);
arcmsr_unmap_pciregion(acb);
pci_release_regions(pdev);
scsi_host_put(host);
pci_disable_device(pdev);
}
static void arcmsr_remove(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
int poll_count = 0;
uint16_t dev_id;
pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
if (dev_id == 0xffff) {
acb->acb_flags &= ~ACB_F_IOP_INITED;
acb->acb_flags |= ACB_F_ADAPTER_REMOVED;
arcmsr_remove_scsi_devices(acb);
arcmsr_free_pcidev(acb);
return;
}
arcmsr_free_sysfs_attr(acb);
scsi_remove_host(host);
flush_work(&acb->arcmsr_do_message_isr_bh);
del_timer_sync(&acb->eternal_timer);
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
arcmsr_disable_outbound_ints(acb);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
acb->acb_flags &= ~ACB_F_IOP_INITED;
for (poll_count = 0; poll_count < acb->maxOutstanding; poll_count++){
if (!atomic_read(&acb->ccboutstandingcount))
break;
arcmsr_interrupt(acb);/* FIXME: need spinlock */
msleep(25);
}
if (atomic_read(&acb->ccboutstandingcount)) {
int i;
arcmsr_abort_allcmd(acb);
arcmsr_done4abort_postqueue(acb);
for (i = 0; i < acb->maxFreeCCB; i++) {
struct CommandControlBlock *ccb = acb->pccb_pool[i];
if (ccb->startdone == ARCMSR_CCB_START) {
ccb->startdone = ARCMSR_CCB_ABORTED;
ccb->pcmd->result = DID_ABORT << 16;
arcmsr_ccb_complete(ccb);
}
}
}
arcmsr_free_irq(pdev, acb);
arcmsr_free_ccb_pool(acb);
if (acb->adapter_type == ACB_ADAPTER_TYPE_F)
arcmsr_free_io_queue(acb);
arcmsr_unmap_pciregion(acb);
pci_release_regions(pdev);
scsi_host_put(host);
pci_disable_device(pdev);
}
static void arcmsr_shutdown(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *)host->hostdata;
if (acb->acb_flags & ACB_F_ADAPTER_REMOVED)
return;
del_timer_sync(&acb->eternal_timer);
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
arcmsr_disable_outbound_ints(acb);
arcmsr_free_irq(pdev, acb);
flush_work(&acb->arcmsr_do_message_isr_bh);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
}
static int __init arcmsr_module_init(void)
{
int error = 0;
error = pci_register_driver(&arcmsr_pci_driver);
return error;
}
static void __exit arcmsr_module_exit(void)
{
pci_unregister_driver(&arcmsr_pci_driver);
}
module_init(arcmsr_module_init);
module_exit(arcmsr_module_exit);
static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
u32 intmask_org)
{
u32 mask;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|
ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
writel(mask, ®->outbound_intmask);
acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
}
break;
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK |
ARCMSR_IOP2DRV_DATA_READ_OK |
ARCMSR_IOP2DRV_CDB_DONE |
ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
writel(mask, reg->iop2drv_doorbell_mask);
acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK|ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
writel(intmask_org & mask, ®->host_int_mask);
acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
mask = ARCMSR_ARC1214_ALL_INT_ENABLE;
writel(intmask_org | mask, reg->pcief0_int_enable);
break;
}
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
mask = ~(ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR);
writel(intmask_org & mask, ®->host_int_mask);
break;
}
}
}
static int arcmsr_build_ccb(struct AdapterControlBlock *acb,
struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd)
{
struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
int8_t *psge = (int8_t *)&arcmsr_cdb->u;
__le32 address_lo, address_hi;
int arccdbsize = 0x30;
__le32 length = 0;
int i;
struct scatterlist *sg;
int nseg;
ccb->pcmd = pcmd;
memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
arcmsr_cdb->TargetID = pcmd->device->id;
arcmsr_cdb->LUN = pcmd->device->lun;
arcmsr_cdb->Function = 1;
arcmsr_cdb->msgContext = 0;
memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len);
nseg = scsi_dma_map(pcmd);
if (unlikely(nseg > acb->host->sg_tablesize || nseg < 0))
return FAILED;
scsi_for_each_sg(pcmd, sg, nseg, i) {
/* Get the physical address of the current data pointer */
length = cpu_to_le32(sg_dma_len(sg));
address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg)));
address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg)));
if (address_hi == 0) {
struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
pdma_sg->address = address_lo;
pdma_sg->length = length;
psge += sizeof (struct SG32ENTRY);
arccdbsize += sizeof (struct SG32ENTRY);
} else {
struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
pdma_sg->addresshigh = address_hi;
pdma_sg->address = address_lo;
pdma_sg->length = length|cpu_to_le32(IS_SG64_ADDR);
psge += sizeof (struct SG64ENTRY);
arccdbsize += sizeof (struct SG64ENTRY);
}
}
arcmsr_cdb->sgcount = (uint8_t)nseg;
arcmsr_cdb->DataLength = scsi_bufflen(pcmd);
arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 : 0);
if ( arccdbsize > 256)
arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
if (pcmd->sc_data_direction == DMA_TO_DEVICE)
arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
ccb->arc_cdb_size = arccdbsize;
return SUCCESS;
}
static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb)
{
uint32_t cdb_phyaddr = ccb->cdb_phyaddr;
struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
atomic_inc(&acb->ccboutstandingcount);
ccb->startdone = ARCMSR_CCB_START;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
writel(cdb_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
®->inbound_queueport);
else
writel(cdb_phyaddr, ®->inbound_queueport);
break;
}
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
uint32_t ending_index, index = reg->postq_index;
ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE);
reg->post_qbuffer[ending_index] = 0;
if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
reg->post_qbuffer[index] =
cdb_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE;
} else {
reg->post_qbuffer[index] = cdb_phyaddr;
}
index++;
index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set it to 0 */
reg->postq_index = index;
writel(ARCMSR_DRV2IOP_CDB_POSTED, reg->drv2iop_doorbell);
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *phbcmu = acb->pmuC;
uint32_t ccb_post_stamp, arc_cdb_size;
arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
ccb_post_stamp = (cdb_phyaddr | ((arc_cdb_size - 1) >> 6) | 1);
writel(upper_32_bits(ccb->cdb_phyaddr), &phbcmu->inbound_queueport_high);
writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *pmu = acb->pmuD;
u16 index_stripped;
u16 postq_index, toggle;
unsigned long flags;
struct InBound_SRB *pinbound_srb;
spin_lock_irqsave(&acb->postq_lock, flags);
postq_index = pmu->postq_index;
pinbound_srb = (struct InBound_SRB *)&(pmu->post_qbuffer[postq_index & 0xFF]);
pinbound_srb->addressHigh = upper_32_bits(ccb->cdb_phyaddr);
pinbound_srb->addressLow = cdb_phyaddr;
pinbound_srb->length = ccb->arc_cdb_size >> 2;
arcmsr_cdb->msgContext = dma_addr_lo32(cdb_phyaddr);
toggle = postq_index & 0x4000;
index_stripped = postq_index + 1;
index_stripped &= (ARCMSR_MAX_ARC1214_POSTQUEUE - 1);
pmu->postq_index = index_stripped ? (index_stripped | toggle) :
(toggle ^ 0x4000);
writel(postq_index, pmu->inboundlist_write_pointer);
spin_unlock_irqrestore(&acb->postq_lock, flags);
break;
}
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *pmu = acb->pmuE;
u32 ccb_post_stamp, arc_cdb_size;
arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
ccb_post_stamp = (ccb->smid | ((arc_cdb_size - 1) >> 6));
writel(0, &pmu->inbound_queueport_high);
writel(ccb_post_stamp, &pmu->inbound_queueport_low);
break;
}
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_F __iomem *pmu = acb->pmuF;
u32 ccb_post_stamp, arc_cdb_size;
if (ccb->arc_cdb_size <= 0x300)
arc_cdb_size = (ccb->arc_cdb_size - 1) >> 6 | 1;
else {
arc_cdb_size = ((ccb->arc_cdb_size + 0xff) >> 8) + 2;
if (arc_cdb_size > 0xF)
arc_cdb_size = 0xF;
arc_cdb_size = (arc_cdb_size << 1) | 1;
}
ccb_post_stamp = (ccb->smid | arc_cdb_size);
writel(0, &pmu->inbound_queueport_high);
writel(ccb_post_stamp, &pmu->inbound_queueport_low);
break;
}
}
}
static void arcmsr_hbaA_stop_bgrb(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
printk(KERN_NOTICE
"arcmsr%d: wait 'stop adapter background rebuild' timeout\n"
, acb->host->host_no);
}
}
static void arcmsr_hbaB_stop_bgrb(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_NOTICE
"arcmsr%d: wait 'stop adapter background rebuild' timeout\n"
, acb->host->host_no);
}
}
static void arcmsr_hbaC_stop_bgrb(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C __iomem *reg = pACB->pmuC;
pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
printk(KERN_NOTICE
"arcmsr%d: wait 'stop adapter background rebuild' timeout\n"
, pACB->host->host_no);
}
return;
}
static void arcmsr_hbaD_stop_bgrb(struct AdapterControlBlock *pACB)
{
struct MessageUnit_D *reg = pACB->pmuD;
pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, reg->inbound_msgaddr0);
if (!arcmsr_hbaD_wait_msgint_ready(pACB))
pr_notice("arcmsr%d: wait 'stop adapter background rebuild' "
"timeout\n", pACB->host->host_no);
}
static void arcmsr_hbaE_stop_bgrb(struct AdapterControlBlock *pACB)
{
struct MessageUnit_E __iomem *reg = pACB->pmuE;
pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0);
pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pACB->out_doorbell, ®->iobound_doorbell);
if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
pr_notice("arcmsr%d: wait 'stop adapter background rebuild' "
"timeout\n", pACB->host->host_no);
}
}
static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
arcmsr_hbaA_stop_bgrb(acb);
break;
case ACB_ADAPTER_TYPE_B:
arcmsr_hbaB_stop_bgrb(acb);
break;
case ACB_ADAPTER_TYPE_C:
arcmsr_hbaC_stop_bgrb(acb);
break;
case ACB_ADAPTER_TYPE_D:
arcmsr_hbaD_stop_bgrb(acb);
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:
arcmsr_hbaE_stop_bgrb(acb);
break;
}
}
static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
{
dma_free_coherent(&acb->pdev->dev, acb->uncache_size, acb->dma_coherent, acb->dma_coherent_handle);
}
static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
}
break;
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
writel(ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ,
reg->inbound_doorbell);
}
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
writel(acb->out_doorbell, ®->iobound_doorbell);
}
break;
}
}
static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
/*
** push inbound doorbell tell iop, driver data write ok
** and wait reply on next hwinterrupt for next Qbuffer post
*/
writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, ®->inbound_doorbell);
}
break;
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
/*
** push inbound doorbell tell iop, driver data write ok
** and wait reply on next hwinterrupt for next Qbuffer post
*/
writel(ARCMSR_DRV2IOP_DATA_WRITE_OK, reg->drv2iop_doorbell);
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
/*
** push inbound doorbell tell iop, driver data write ok
** and wait reply on next hwinterrupt for next Qbuffer post
*/
writel(ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK, ®->inbound_doorbell);
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
writel(ARCMSR_ARC1214_DRV2IOP_DATA_IN_READY,
reg->inbound_doorbell);
}
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK;
writel(acb->out_doorbell, ®->iobound_doorbell);
}
break;
}
}
struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
{
struct QBUFFER __iomem *qbuffer = NULL;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
qbuffer = (struct QBUFFER __iomem *)®->message_rbuffer;
}
break;
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *phbcmu = acb->pmuC;
qbuffer = (struct QBUFFER __iomem *)&phbcmu->message_rbuffer;
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
}
break;
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
qbuffer = (struct QBUFFER __iomem *)®->message_rbuffer;
}
break;
case ACB_ADAPTER_TYPE_F: {
qbuffer = (struct QBUFFER __iomem *)acb->message_rbuffer;
}
break;
}
return qbuffer;
}
static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBlock *acb)
{
struct QBUFFER __iomem *pqbuffer = NULL;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
pqbuffer = (struct QBUFFER __iomem *) ®->message_wbuffer;
}
break;
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
pqbuffer = (struct QBUFFER __iomem *)®->message_wbuffer;
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
}
break;
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
pqbuffer = (struct QBUFFER __iomem *)®->message_wbuffer;
}
break;
case ACB_ADAPTER_TYPE_F:
pqbuffer = (struct QBUFFER __iomem *)acb->message_wbuffer;
break;
}
return pqbuffer;
}
static uint32_t
arcmsr_Read_iop_rqbuffer_in_DWORD(struct AdapterControlBlock *acb,
struct QBUFFER __iomem *prbuffer)
{
uint8_t *pQbuffer;
uint8_t *buf1 = NULL;
uint32_t __iomem *iop_data;
uint32_t iop_len, data_len, *buf2 = NULL;
iop_data = (uint32_t __iomem *)prbuffer->data;
iop_len = readl(&prbuffer->data_len);
if (iop_len > 0) {
buf1 = kmalloc(128, GFP_ATOMIC);
buf2 = (uint32_t *)buf1;
if (buf1 == NULL)
return 0;
data_len = iop_len;
while (data_len >= 4) {
*buf2++ = readl(iop_data);
iop_data++;
data_len -= 4;
}
if (data_len)
*buf2 = readl(iop_data);
buf2 = (uint32_t *)buf1;
}
while (iop_len > 0) {
pQbuffer = &acb->rqbuffer[acb->rqbuf_putIndex];
*pQbuffer = *buf1;
acb->rqbuf_putIndex++;
/* if last, index number set it to 0 */
acb->rqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
buf1++;
iop_len--;
}
kfree(buf2);
/* let IOP know data has been read */
arcmsr_iop_message_read(acb);
return 1;
}
uint32_t
arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb,
struct QBUFFER __iomem *prbuffer) {
uint8_t *pQbuffer;
uint8_t __iomem *iop_data;
uint32_t iop_len;
if (acb->adapter_type > ACB_ADAPTER_TYPE_B)
return arcmsr_Read_iop_rqbuffer_in_DWORD(acb, prbuffer);
iop_data = (uint8_t __iomem *)prbuffer->data;
iop_len = readl(&prbuffer->data_len);
while (iop_len > 0) {
pQbuffer = &acb->rqbuffer[acb->rqbuf_putIndex];
*pQbuffer = readb(iop_data);
acb->rqbuf_putIndex++;
acb->rqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
iop_data++;
iop_len--;
}
arcmsr_iop_message_read(acb);
return 1;
}
static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
{
unsigned long flags;
struct QBUFFER __iomem *prbuffer;
int32_t buf_empty_len;
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
prbuffer = arcmsr_get_iop_rqbuffer(acb);
if (acb->rqbuf_putIndex >= acb->rqbuf_getIndex) {
buf_empty_len = (ARCMSR_MAX_QBUFFER - 1) -
(acb->rqbuf_putIndex - acb->rqbuf_getIndex);
} else
buf_empty_len = acb->rqbuf_getIndex - acb->rqbuf_putIndex - 1;
if (buf_empty_len >= readl(&prbuffer->data_len)) {
if (arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
} else
acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
}
static void arcmsr_write_ioctldata2iop_in_DWORD(struct AdapterControlBlock *acb)
{
uint8_t *pQbuffer;
struct QBUFFER __iomem *pwbuffer;
uint8_t *buf1 = NULL;
uint32_t __iomem *iop_data;
uint32_t allxfer_len = 0, data_len, *buf2 = NULL, data;
if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
buf1 = kmalloc(128, GFP_ATOMIC);
buf2 = (uint32_t *)buf1;
if (buf1 == NULL)
return;
acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
pwbuffer = arcmsr_get_iop_wqbuffer(acb);
iop_data = (uint32_t __iomem *)pwbuffer->data;
while ((acb->wqbuf_getIndex != acb->wqbuf_putIndex)
&& (allxfer_len < 124)) {
pQbuffer = &acb->wqbuffer[acb->wqbuf_getIndex];
*buf1 = *pQbuffer;
acb->wqbuf_getIndex++;
acb->wqbuf_getIndex %= ARCMSR_MAX_QBUFFER;
buf1++;
allxfer_len++;
}
data_len = allxfer_len;
buf1 = (uint8_t *)buf2;
while (data_len >= 4) {
data = *buf2++;
writel(data, iop_data);
iop_data++;
data_len -= 4;
}
if (data_len) {
data = *buf2;
writel(data, iop_data);
}
writel(allxfer_len, &pwbuffer->data_len);
kfree(buf1);
arcmsr_iop_message_wrote(acb);
}
}
void
arcmsr_write_ioctldata2iop(struct AdapterControlBlock *acb)
{
uint8_t *pQbuffer;
struct QBUFFER __iomem *pwbuffer;
uint8_t __iomem *iop_data;
int32_t allxfer_len = 0;
if (acb->adapter_type > ACB_ADAPTER_TYPE_B) {
arcmsr_write_ioctldata2iop_in_DWORD(acb);
return;
}
if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
pwbuffer = arcmsr_get_iop_wqbuffer(acb);
iop_data = (uint8_t __iomem *)pwbuffer->data;
while ((acb->wqbuf_getIndex != acb->wqbuf_putIndex)
&& (allxfer_len < 124)) {
pQbuffer = &acb->wqbuffer[acb->wqbuf_getIndex];
writeb(*pQbuffer, iop_data);
acb->wqbuf_getIndex++;
acb->wqbuf_getIndex %= ARCMSR_MAX_QBUFFER;
iop_data++;
allxfer_len++;
}
writel(allxfer_len, &pwbuffer->data_len);
arcmsr_iop_message_wrote(acb);
}
}
static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
{
unsigned long flags;
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED;
if (acb->wqbuf_getIndex != acb->wqbuf_putIndex)
arcmsr_write_ioctldata2iop(acb);
if (acb->wqbuf_getIndex == acb->wqbuf_putIndex)
acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
}
static void arcmsr_hbaA_doorbell_isr(struct AdapterControlBlock *acb)
{
uint32_t outbound_doorbell;
struct MessageUnit_A __iomem *reg = acb->pmuA;
outbound_doorbell = readl(®->outbound_doorbell);
do {
writel(outbound_doorbell, ®->outbound_doorbell);
if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK)
arcmsr_iop2drv_data_wrote_handle(acb);
if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK)
arcmsr_iop2drv_data_read_handle(acb);
outbound_doorbell = readl(®->outbound_doorbell);
} while (outbound_doorbell & (ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK
| ARCMSR_OUTBOUND_IOP331_DATA_READ_OK));
}
static void arcmsr_hbaC_doorbell_isr(struct AdapterControlBlock *pACB)
{
uint32_t outbound_doorbell;
struct MessageUnit_C __iomem *reg = pACB->pmuC;
/*
*******************************************************************
** Maybe here we need to check wrqbuffer_lock is lock or not
** DOORBELL: din! don!
** check if there are any mail need to pack from firmware
*******************************************************************
*/
outbound_doorbell = readl(®->outbound_doorbell);
do {
writel(outbound_doorbell, ®->outbound_doorbell_clear);
readl(®->outbound_doorbell_clear);
if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK)
arcmsr_iop2drv_data_wrote_handle(pACB);
if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK)
arcmsr_iop2drv_data_read_handle(pACB);
if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE)
arcmsr_hbaC_message_isr(pACB);
outbound_doorbell = readl(®->outbound_doorbell);
} while (outbound_doorbell & (ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK
| ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK
| ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE));
}
static void arcmsr_hbaD_doorbell_isr(struct AdapterControlBlock *pACB)
{
uint32_t outbound_doorbell;
struct MessageUnit_D *pmu = pACB->pmuD;
outbound_doorbell = readl(pmu->outbound_doorbell);
do {
writel(outbound_doorbell, pmu->outbound_doorbell);
if (outbound_doorbell & ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE)
arcmsr_hbaD_message_isr(pACB);
if (outbound_doorbell & ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK)
arcmsr_iop2drv_data_wrote_handle(pACB);
if (outbound_doorbell & ARCMSR_ARC1214_IOP2DRV_DATA_READ_OK)
arcmsr_iop2drv_data_read_handle(pACB);
outbound_doorbell = readl(pmu->outbound_doorbell);
} while (outbound_doorbell & (ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK
| ARCMSR_ARC1214_IOP2DRV_DATA_READ_OK
| ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE));
}
static void arcmsr_hbaE_doorbell_isr(struct AdapterControlBlock *pACB)
{
uint32_t outbound_doorbell, in_doorbell, tmp, i;
struct MessageUnit_E __iomem *reg = pACB->pmuE;
if (pACB->adapter_type == ACB_ADAPTER_TYPE_F) {
for (i = 0; i < 5; i++) {
in_doorbell = readl(®->iobound_doorbell);
if (in_doorbell != 0)
break;
}
} else
in_doorbell = readl(®->iobound_doorbell);
outbound_doorbell = in_doorbell ^ pACB->in_doorbell;
do {
writel(0, ®->host_int_status); /* clear interrupt */
if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
arcmsr_iop2drv_data_wrote_handle(pACB);
}
if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
arcmsr_iop2drv_data_read_handle(pACB);
}
if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
arcmsr_hbaE_message_isr(pACB);
}
tmp = in_doorbell;
in_doorbell = readl(®->iobound_doorbell);
outbound_doorbell = tmp ^ in_doorbell;
} while (outbound_doorbell & (ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK
| ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK
| ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE));
pACB->in_doorbell = in_doorbell;
}
static void arcmsr_hbaA_postqueue_isr(struct AdapterControlBlock *acb)
{
uint32_t flag_ccb;
struct MessageUnit_A __iomem *reg = acb->pmuA;
struct ARCMSR_CDB *pARCMSR_CDB;
struct CommandControlBlock *pCCB;
bool error;
unsigned long cdb_phy_addr;
while ((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) {
cdb_phy_addr = (flag_ccb << 5) & 0xffffffff;
if (acb->cdb_phyadd_hipart)
cdb_phy_addr = cdb_phy_addr | acb->cdb_phyadd_hipart;
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + cdb_phy_addr);
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
arcmsr_drain_donequeue(acb, pCCB, error);
}
}
static void arcmsr_hbaB_postqueue_isr(struct AdapterControlBlock *acb)
{
uint32_t index;
uint32_t flag_ccb;
struct MessageUnit_B *reg = acb->pmuB;
struct ARCMSR_CDB *pARCMSR_CDB;
struct CommandControlBlock *pCCB;
bool error;
unsigned long cdb_phy_addr;
index = reg->doneq_index;
while ((flag_ccb = reg->done_qbuffer[index]) != 0) {
cdb_phy_addr = (flag_ccb << 5) & 0xffffffff;
if (acb->cdb_phyadd_hipart)
cdb_phy_addr = cdb_phy_addr | acb->cdb_phyadd_hipart;
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + cdb_phy_addr);
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
arcmsr_drain_donequeue(acb, pCCB, error);
reg->done_qbuffer[index] = 0;
index++;
index %= ARCMSR_MAX_HBB_POSTQUEUE;
reg->doneq_index = index;
}
}
static void arcmsr_hbaC_postqueue_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_C __iomem *phbcmu;
struct ARCMSR_CDB *arcmsr_cdb;
struct CommandControlBlock *ccb;
uint32_t flag_ccb, throttling = 0;
unsigned long ccb_cdb_phy;
int error;
phbcmu = acb->pmuC;
/* areca cdb command done */
/* Use correct offset and size for syncing */
while ((flag_ccb = readl(&phbcmu->outbound_queueport_low)) !=
0xFFFFFFFF) {
ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset
+ ccb_cdb_phy);
ccb = container_of(arcmsr_cdb, struct CommandControlBlock,
arcmsr_cdb);
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1)
? true : false;
/* check if command done with no error */
arcmsr_drain_donequeue(acb, ccb, error);
throttling++;
if (throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
writel(ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING,
&phbcmu->inbound_doorbell);
throttling = 0;
}
}
}
static void arcmsr_hbaD_postqueue_isr(struct AdapterControlBlock *acb)
{
u32 outbound_write_pointer, doneq_index, index_stripped, toggle;
uint32_t addressLow;
int error;
struct MessageUnit_D *pmu;
struct ARCMSR_CDB *arcmsr_cdb;
struct CommandControlBlock *ccb;
unsigned long flags, ccb_cdb_phy;
spin_lock_irqsave(&acb->doneq_lock, flags);
pmu = acb->pmuD;
outbound_write_pointer = pmu->done_qbuffer[0].addressLow + 1;
doneq_index = pmu->doneq_index;
if ((doneq_index & 0xFFF) != (outbound_write_pointer & 0xFFF)) {
do {
toggle = doneq_index & 0x4000;
index_stripped = (doneq_index & 0xFFF) + 1;
index_stripped %= ARCMSR_MAX_ARC1214_DONEQUEUE;
pmu->doneq_index = index_stripped ? (index_stripped | toggle) :
((toggle ^ 0x4000) + 1);
doneq_index = pmu->doneq_index;
addressLow = pmu->done_qbuffer[doneq_index &
0xFFF].addressLow;
ccb_cdb_phy = (addressLow & 0xFFFFFFF0);
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset
+ ccb_cdb_phy);
ccb = container_of(arcmsr_cdb,
struct CommandControlBlock, arcmsr_cdb);
error = (addressLow & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1)
? true : false;
arcmsr_drain_donequeue(acb, ccb, error);
writel(doneq_index, pmu->outboundlist_read_pointer);
} while ((doneq_index & 0xFFF) !=
(outbound_write_pointer & 0xFFF));
}
writel(ARCMSR_ARC1214_OUTBOUND_LIST_INTERRUPT_CLEAR,
pmu->outboundlist_interrupt_cause);
readl(pmu->outboundlist_interrupt_cause);
spin_unlock_irqrestore(&acb->doneq_lock, flags);
}
static void arcmsr_hbaE_postqueue_isr(struct AdapterControlBlock *acb)
{
uint32_t doneq_index;
uint16_t cmdSMID;
int error;
struct MessageUnit_E __iomem *pmu;
struct CommandControlBlock *ccb;
unsigned long flags;
spin_lock_irqsave(&acb->doneq_lock, flags);
doneq_index = acb->doneq_index;
pmu = acb->pmuE;
while ((readl(&pmu->reply_post_producer_index) & 0xFFFF) != doneq_index) {
cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
ccb = acb->pccb_pool[cmdSMID];
error = (acb->pCompletionQ[doneq_index].cmdFlag
& ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
arcmsr_drain_donequeue(acb, ccb, error);
doneq_index++;
if (doneq_index >= acb->completionQ_entry)
doneq_index = 0;
}
acb->doneq_index = doneq_index;
writel(doneq_index, &pmu->reply_post_consumer_index);
spin_unlock_irqrestore(&acb->doneq_lock, flags);
}
static void arcmsr_hbaF_postqueue_isr(struct AdapterControlBlock *acb)
{
uint32_t doneq_index;
uint16_t cmdSMID;
int error;
struct MessageUnit_F __iomem *phbcmu;
struct CommandControlBlock *ccb;
unsigned long flags;
spin_lock_irqsave(&acb->doneq_lock, flags);
doneq_index = acb->doneq_index;
phbcmu = acb->pmuF;
while (1) {
cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
if (cmdSMID == 0xffff)
break;
ccb = acb->pccb_pool[cmdSMID];
error = (acb->pCompletionQ[doneq_index].cmdFlag &
ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
arcmsr_drain_donequeue(acb, ccb, error);
acb->pCompletionQ[doneq_index].cmdSMID = 0xffff;
doneq_index++;
if (doneq_index >= acb->completionQ_entry)
doneq_index = 0;
}
acb->doneq_index = doneq_index;
writel(doneq_index, &phbcmu->reply_post_consumer_index);
spin_unlock_irqrestore(&acb->doneq_lock, flags);
}
/*
**********************************************************************************
** Handle a message interrupt
**
** The only message interrupt we expect is in response to a query for the current adapter config.
** We want this in order to compare the drivemap so that we can detect newly-attached drives.
**********************************************************************************
*/
static void arcmsr_hbaA_message_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
/*clear interrupt and message state*/
writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, ®->outbound_intstatus);
if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
schedule_work(&acb->arcmsr_do_message_isr_bh);
}
static void arcmsr_hbaB_message_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
/*clear interrupt and message state*/
writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
schedule_work(&acb->arcmsr_do_message_isr_bh);
}
/*
**********************************************************************************
** Handle a message interrupt
**
** The only message interrupt we expect is in response to a query for the
** current adapter config.
** We want this in order to compare the drivemap so that we can detect newly-attached drives.
**********************************************************************************
*/
static void arcmsr_hbaC_message_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_C __iomem *reg = acb->pmuC;
/*clear interrupt and message state*/
writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, ®->outbound_doorbell_clear);
if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
schedule_work(&acb->arcmsr_do_message_isr_bh);
}
static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_D *reg = acb->pmuD;
writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE, reg->outbound_doorbell);
readl(reg->outbound_doorbell);
if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
schedule_work(&acb->arcmsr_do_message_isr_bh);
}
static void arcmsr_hbaE_message_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_E __iomem *reg = acb->pmuE;
writel(0, ®->host_int_status);
if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
schedule_work(&acb->arcmsr_do_message_isr_bh);
}
static int arcmsr_hbaA_handle_isr(struct AdapterControlBlock *acb)
{
uint32_t outbound_intstatus;
struct MessageUnit_A __iomem *reg = acb->pmuA;
outbound_intstatus = readl(®->outbound_intstatus) &
acb->outbound_int_enable;
if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT))
return IRQ_NONE;
do {
writel(outbound_intstatus, ®->outbound_intstatus);
if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT)
arcmsr_hbaA_doorbell_isr(acb);
if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT)
arcmsr_hbaA_postqueue_isr(acb);
if (outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT)
arcmsr_hbaA_message_isr(acb);
outbound_intstatus = readl(®->outbound_intstatus) &
acb->outbound_int_enable;
} while (outbound_intstatus & (ARCMSR_MU_OUTBOUND_DOORBELL_INT
| ARCMSR_MU_OUTBOUND_POSTQUEUE_INT
| ARCMSR_MU_OUTBOUND_MESSAGE0_INT));
return IRQ_HANDLED;
}
static int arcmsr_hbaB_handle_isr(struct AdapterControlBlock *acb)
{
uint32_t outbound_doorbell;
struct MessageUnit_B *reg = acb->pmuB;
outbound_doorbell = readl(reg->iop2drv_doorbell) &
acb->outbound_int_enable;
if (!outbound_doorbell)
return IRQ_NONE;
do {
writel(~outbound_doorbell, reg->iop2drv_doorbell);
writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK)
arcmsr_iop2drv_data_wrote_handle(acb);
if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK)
arcmsr_iop2drv_data_read_handle(acb);
if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE)
arcmsr_hbaB_postqueue_isr(acb);
if (outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE)
arcmsr_hbaB_message_isr(acb);
outbound_doorbell = readl(reg->iop2drv_doorbell) &
acb->outbound_int_enable;
} while (outbound_doorbell & (ARCMSR_IOP2DRV_DATA_WRITE_OK
| ARCMSR_IOP2DRV_DATA_READ_OK
| ARCMSR_IOP2DRV_CDB_DONE
| ARCMSR_IOP2DRV_MESSAGE_CMD_DONE));
return IRQ_HANDLED;
}
static int arcmsr_hbaC_handle_isr(struct AdapterControlBlock *pACB)
{
uint32_t host_interrupt_status;
struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
/*
*********************************************
** check outbound intstatus
*********************************************
*/
host_interrupt_status = readl(&phbcmu->host_int_status) &
(ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR);
if (!host_interrupt_status)
return IRQ_NONE;
do {
if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR)
arcmsr_hbaC_doorbell_isr(pACB);
/* MU post queue interrupts*/
if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR)
arcmsr_hbaC_postqueue_isr(pACB);
host_interrupt_status = readl(&phbcmu->host_int_status);
} while (host_interrupt_status & (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR));
return IRQ_HANDLED;
}
static irqreturn_t arcmsr_hbaD_handle_isr(struct AdapterControlBlock *pACB)
{
u32 host_interrupt_status;
struct MessageUnit_D *pmu = pACB->pmuD;
host_interrupt_status = readl(pmu->host_int_status) &
(ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR |
ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR);
if (!host_interrupt_status)
return IRQ_NONE;
do {
/* MU post queue interrupts*/
if (host_interrupt_status &
ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR)
arcmsr_hbaD_postqueue_isr(pACB);
if (host_interrupt_status &
ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR)
arcmsr_hbaD_doorbell_isr(pACB);
host_interrupt_status = readl(pmu->host_int_status);
} while (host_interrupt_status &
(ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR |
ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR));
return IRQ_HANDLED;
}
static irqreturn_t arcmsr_hbaE_handle_isr(struct AdapterControlBlock *pACB)
{
uint32_t host_interrupt_status;
struct MessageUnit_E __iomem *pmu = pACB->pmuE;
host_interrupt_status = readl(&pmu->host_int_status) &
(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
if (!host_interrupt_status)
return IRQ_NONE;
do {
/* MU ioctl transfer doorbell interrupts*/
if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
arcmsr_hbaE_doorbell_isr(pACB);
}
/* MU post queue interrupts*/
if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
arcmsr_hbaE_postqueue_isr(pACB);
}
host_interrupt_status = readl(&pmu->host_int_status);
} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
return IRQ_HANDLED;
}
static irqreturn_t arcmsr_hbaF_handle_isr(struct AdapterControlBlock *pACB)
{
uint32_t host_interrupt_status;
struct MessageUnit_F __iomem *phbcmu = pACB->pmuF;
host_interrupt_status = readl(&phbcmu->host_int_status) &
(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
if (!host_interrupt_status)
return IRQ_NONE;
do {
/* MU post queue interrupts*/
if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR)
arcmsr_hbaF_postqueue_isr(pACB);
/* MU ioctl transfer doorbell interrupts*/
if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR)
arcmsr_hbaE_doorbell_isr(pACB);
host_interrupt_status = readl(&phbcmu->host_int_status);
} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
return IRQ_HANDLED;
}
static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
return arcmsr_hbaA_handle_isr(acb);
case ACB_ADAPTER_TYPE_B:
return arcmsr_hbaB_handle_isr(acb);
case ACB_ADAPTER_TYPE_C:
return arcmsr_hbaC_handle_isr(acb);
case ACB_ADAPTER_TYPE_D:
return arcmsr_hbaD_handle_isr(acb);
case ACB_ADAPTER_TYPE_E:
return arcmsr_hbaE_handle_isr(acb);
case ACB_ADAPTER_TYPE_F:
return arcmsr_hbaF_handle_isr(acb);
default:
return IRQ_NONE;
}
}
static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
{
if (acb) {
/* stop adapter background rebuild */
if (acb->acb_flags & ACB_F_MSG_START_BGRB) {
uint32_t intmask_org;
acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
intmask_org = arcmsr_disable_outbound_ints(acb);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
arcmsr_enable_outbound_ints(acb, intmask_org);
}
}
}
void arcmsr_clear_iop2drv_rqueue_buffer(struct AdapterControlBlock *acb)
{
uint32_t i;
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
for (i = 0; i < 15; i++) {
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
acb->rqbuf_getIndex = 0;
acb->rqbuf_putIndex = 0;
arcmsr_iop_message_read(acb);
mdelay(30);
} else if (acb->rqbuf_getIndex !=
acb->rqbuf_putIndex) {
acb->rqbuf_getIndex = 0;
acb->rqbuf_putIndex = 0;
mdelay(30);
} else
break;
}
}
}
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd)
{
char *buffer;
unsigned short use_sg;
int retvalue = 0, transfer_len = 0;
unsigned long flags;
struct CMD_MESSAGE_FIELD *pcmdmessagefld;
uint32_t controlcode = (uint32_t)cmd->cmnd[5] << 24 |
(uint32_t)cmd->cmnd[6] << 16 |
(uint32_t)cmd->cmnd[7] << 8 |
(uint32_t)cmd->cmnd[8];
struct scatterlist *sg;
use_sg = scsi_sg_count(cmd);
sg = scsi_sglist(cmd);
buffer = kmap_atomic(sg_page(sg)) + sg->offset;
if (use_sg > 1) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
transfer_len += sg->length;
if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
retvalue = ARCMSR_MESSAGE_FAIL;
pr_info("%s: ARCMSR_MESSAGE_FAIL!\n", __func__);
goto message_out;
}
pcmdmessagefld = (struct CMD_MESSAGE_FIELD *)buffer;
switch (controlcode) {
case ARCMSR_MESSAGE_READ_RQBUFFER: {
unsigned char *ver_addr;
uint8_t *ptmpQbuffer;
uint32_t allxfer_len = 0;
ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
if (!ver_addr) {
retvalue = ARCMSR_MESSAGE_FAIL;
pr_info("%s: memory not enough!\n", __func__);
goto message_out;
}
ptmpQbuffer = ver_addr;
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
if (acb->rqbuf_getIndex != acb->rqbuf_putIndex) {
unsigned int tail = acb->rqbuf_getIndex;
unsigned int head = acb->rqbuf_putIndex;
unsigned int cnt_to_end = CIRC_CNT_TO_END(head, tail, ARCMSR_MAX_QBUFFER);
allxfer_len = CIRC_CNT(head, tail, ARCMSR_MAX_QBUFFER);
if (allxfer_len > ARCMSR_API_DATA_BUFLEN)
allxfer_len = ARCMSR_API_DATA_BUFLEN;
if (allxfer_len <= cnt_to_end)
memcpy(ptmpQbuffer, acb->rqbuffer + tail, allxfer_len);
else {
memcpy(ptmpQbuffer, acb->rqbuffer + tail, cnt_to_end);
memcpy(ptmpQbuffer + cnt_to_end, acb->rqbuffer, allxfer_len - cnt_to_end);
}
acb->rqbuf_getIndex = (acb->rqbuf_getIndex + allxfer_len) % ARCMSR_MAX_QBUFFER;
}
memcpy(pcmdmessagefld->messagedatabuffer, ver_addr,
allxfer_len);
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
struct QBUFFER __iomem *prbuffer;
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
prbuffer = arcmsr_get_iop_rqbuffer(acb);
if (arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
}
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
kfree(ver_addr);
pcmdmessagefld->cmdmessage.Length = allxfer_len;
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
unsigned char *ver_addr;
uint32_t user_len;
int32_t cnt2end;
uint8_t *pQbuffer, *ptmpuserbuffer;
user_len = pcmdmessagefld->cmdmessage.Length;
if (user_len > ARCMSR_API_DATA_BUFLEN) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
if (!ver_addr) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
ptmpuserbuffer = ver_addr;
memcpy(ptmpuserbuffer,
pcmdmessagefld->messagedatabuffer, user_len);
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
if (acb->wqbuf_putIndex != acb->wqbuf_getIndex) {
struct SENSE_DATA *sensebuffer =
(struct SENSE_DATA *)cmd->sense_buffer;
arcmsr_write_ioctldata2iop(acb);
/* has error report sensedata */
sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
sensebuffer->SenseKey = ILLEGAL_REQUEST;
sensebuffer->AdditionalSenseLength = 0x0A;
sensebuffer->AdditionalSenseCode = 0x20;
sensebuffer->Valid = 1;
retvalue = ARCMSR_MESSAGE_FAIL;
} else {
pQbuffer = &acb->wqbuffer[acb->wqbuf_putIndex];
cnt2end = ARCMSR_MAX_QBUFFER - acb->wqbuf_putIndex;
if (user_len > cnt2end) {
memcpy(pQbuffer, ptmpuserbuffer, cnt2end);
ptmpuserbuffer += cnt2end;
user_len -= cnt2end;
acb->wqbuf_putIndex = 0;
pQbuffer = acb->wqbuffer;
}
memcpy(pQbuffer, ptmpuserbuffer, user_len);
acb->wqbuf_putIndex += user_len;
acb->wqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
acb->acb_flags &=
~ACB_F_MESSAGE_WQBUFFER_CLEARED;
arcmsr_write_ioctldata2iop(acb);
}
}
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
kfree(ver_addr);
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
uint8_t *pQbuffer = acb->rqbuffer;
arcmsr_clear_iop2drv_rqueue_buffer(acb);
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
acb->rqbuf_getIndex = 0;
acb->rqbuf_putIndex = 0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
uint8_t *pQbuffer = acb->wqbuffer;
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
ACB_F_MESSAGE_WQBUFFER_READED);
acb->wqbuf_getIndex = 0;
acb->wqbuf_putIndex = 0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
uint8_t *pQbuffer;
arcmsr_clear_iop2drv_rqueue_buffer(acb);
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
acb->rqbuf_getIndex = 0;
acb->rqbuf_putIndex = 0;
pQbuffer = acb->rqbuffer;
memset(pQbuffer, 0, sizeof(struct QBUFFER));
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
ACB_F_MESSAGE_WQBUFFER_READED);
acb->wqbuf_getIndex = 0;
acb->wqbuf_putIndex = 0;
pQbuffer = acb->wqbuffer;
memset(pQbuffer, 0, sizeof(struct QBUFFER));
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_RETURN_CODE_3F: {
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_3F;
break;
}
case ARCMSR_MESSAGE_SAY_HELLO: {
int8_t *hello_string = "Hello! I am ARCMSR";
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
memcpy(pcmdmessagefld->messagedatabuffer,
hello_string, (int16_t)strlen(hello_string));
break;
}
case ARCMSR_MESSAGE_SAY_GOODBYE: {
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
arcmsr_iop_parking(acb);
break;
}
case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
arcmsr_flush_adapter_cache(acb);
break;
}
default:
retvalue = ARCMSR_MESSAGE_FAIL;
pr_info("%s: unknown controlcode!\n", __func__);
}
message_out:
if (use_sg) {
struct scatterlist *sg = scsi_sglist(cmd);
kunmap_atomic(buffer - sg->offset);
}
return retvalue;
}
static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb)
{
struct list_head *head;
struct CommandControlBlock *ccb = NULL;
unsigned long flags;
spin_lock_irqsave(&acb->ccblist_lock, flags);
head = &acb->ccb_free_list;
if (!list_empty(head)) {
ccb = list_entry(head->next, struct CommandControlBlock, list);
list_del_init(&ccb->list);
}else{
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
return NULL;
}
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
return ccb;
}
static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd)
{
switch (cmd->cmnd[0]) {
case INQUIRY: {
unsigned char inqdata[36];
char *buffer;
struct scatterlist *sg;
if (cmd->device->lun) {
cmd->result = (DID_TIME_OUT << 16);
scsi_done(cmd);
return;
}
inqdata[0] = TYPE_PROCESSOR;
/* Periph Qualifier & Periph Dev Type */
inqdata[1] = 0;
/* rem media bit & Dev Type Modifier */
inqdata[2] = 0;
/* ISO, ECMA, & ANSI versions */
inqdata[4] = 31;
/* length of additional data */
memcpy(&inqdata[8], "Areca ", 8);
/* Vendor Identification */
memcpy(&inqdata[16], "RAID controller ", 16);
/* Product Identification */
memcpy(&inqdata[32], "R001", 4); /* Product Revision */
sg = scsi_sglist(cmd);
buffer = kmap_atomic(sg_page(sg)) + sg->offset;
memcpy(buffer, inqdata, sizeof(inqdata));
sg = scsi_sglist(cmd);
kunmap_atomic(buffer - sg->offset);
scsi_done(cmd);
}
break;
case WRITE_BUFFER:
case READ_BUFFER: {
if (arcmsr_iop_message_xfer(acb, cmd))
cmd->result = (DID_ERROR << 16);
scsi_done(cmd);
}
break;
default:
scsi_done(cmd);
}
}
static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd)
{
struct Scsi_Host *host = cmd->device->host;
struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
struct CommandControlBlock *ccb;
int target = cmd->device->id;
if (acb->acb_flags & ACB_F_ADAPTER_REMOVED) {
cmd->result = (DID_NO_CONNECT << 16);
scsi_done(cmd);
return 0;
}
cmd->host_scribble = NULL;
cmd->result = 0;
if (target == 16) {
/* virtual device for iop message transfer */
arcmsr_handle_virtual_command(acb, cmd);
return 0;
}
ccb = arcmsr_get_freeccb(acb);
if (!ccb)
return SCSI_MLQUEUE_HOST_BUSY;
if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
cmd->result = (DID_ERROR << 16) | SAM_STAT_RESERVATION_CONFLICT;
scsi_done(cmd);
return 0;
}
arcmsr_post_ccb(acb, ccb);
return 0;
}
static DEF_SCSI_QCMD(arcmsr_queue_command)
static int arcmsr_slave_config(struct scsi_device *sdev)
{
unsigned int dev_timeout;
dev_timeout = sdev->request_queue->rq_timeout;
if ((cmd_timeout > 0) && ((cmd_timeout * HZ) > dev_timeout))
blk_queue_rq_timeout(sdev->request_queue, cmd_timeout * HZ);
return 0;
}
static void arcmsr_get_adapter_config(struct AdapterControlBlock *pACB, uint32_t *rwbuffer)
{
int count;
uint32_t *acb_firm_model = (uint32_t *)pACB->firm_model;
uint32_t *acb_firm_version = (uint32_t *)pACB->firm_version;
uint32_t *acb_device_map = (uint32_t *)pACB->device_map;
uint32_t *firm_model = &rwbuffer[15];
uint32_t *firm_version = &rwbuffer[17];
uint32_t *device_map = &rwbuffer[21];
count = 2;
while (count) {
*acb_firm_model = readl(firm_model);
acb_firm_model++;
firm_model++;
count--;
}
count = 4;
while (count) {
*acb_firm_version = readl(firm_version);
acb_firm_version++;
firm_version++;
count--;
}
count = 4;
while (count) {
*acb_device_map = readl(device_map);
acb_device_map++;
device_map++;
count--;
}
pACB->signature = readl(&rwbuffer[0]);
pACB->firm_request_len = readl(&rwbuffer[1]);
pACB->firm_numbers_queue = readl(&rwbuffer[2]);
pACB->firm_sdram_size = readl(&rwbuffer[3]);
pACB->firm_hd_channels = readl(&rwbuffer[4]);
pACB->firm_cfg_version = readl(&rwbuffer[25]);
pr_notice("Areca RAID Controller%d: Model %s, F/W %s\n",
pACB->host->host_no,
pACB->firm_model,
pACB->firm_version);
}
static bool arcmsr_hbaA_get_config(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
arcmsr_wait_firmware_ready(acb);
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
miscellaneous data' timeout \n", acb->host->host_no);
return false;
}
arcmsr_get_adapter_config(acb, reg->message_rwbuffer);
return true;
}
static bool arcmsr_hbaB_get_config(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
arcmsr_wait_firmware_ready(acb);
writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_ERR "arcmsr%d: can't set driver mode.\n", acb->host->host_no);
return false;
}
writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
miscellaneous data' timeout \n", acb->host->host_no);
return false;
}
arcmsr_get_adapter_config(acb, reg->message_rwbuffer);
return true;
}
static bool arcmsr_hbaC_get_config(struct AdapterControlBlock *pACB)
{
uint32_t intmask_org;
struct MessageUnit_C __iomem *reg = pACB->pmuC;
/* disable all outbound interrupt */
intmask_org = readl(®->host_int_mask); /* disable outbound message0 int */
writel(intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE, ®->host_int_mask);
/* wait firmware ready */
arcmsr_wait_firmware_ready(pACB);
/* post "get config" instruction */
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
/* wait message ready */
if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
miscellaneous data' timeout \n", pACB->host->host_no);
return false;
}
arcmsr_get_adapter_config(pACB, reg->msgcode_rwbuffer);
return true;
}
static bool arcmsr_hbaD_get_config(struct AdapterControlBlock *acb)
{
struct MessageUnit_D *reg = acb->pmuD;
if (readl(acb->pmuD->outbound_doorbell) &
ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE) {
writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE,
acb->pmuD->outbound_doorbell);/*clear interrupt*/
}
arcmsr_wait_firmware_ready(acb);
/* post "get config" instruction */
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, reg->inbound_msgaddr0);
/* wait message ready */
if (!arcmsr_hbaD_wait_msgint_ready(acb)) {
pr_notice("arcmsr%d: wait get adapter firmware "
"miscellaneous data timeout\n", acb->host->host_no);
return false;
}
arcmsr_get_adapter_config(acb, reg->msgcode_rwbuffer);
return true;
}
static bool arcmsr_hbaE_get_config(struct AdapterControlBlock *pACB)
{
struct MessageUnit_E __iomem *reg = pACB->pmuE;
uint32_t intmask_org;
/* disable all outbound interrupt */
intmask_org = readl(®->host_int_mask); /* disable outbound message0 int */
writel(intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE, ®->host_int_mask);
/* wait firmware ready */
arcmsr_wait_firmware_ready(pACB);
mdelay(20);
/* post "get config" instruction */
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pACB->out_doorbell, ®->iobound_doorbell);
/* wait message ready */
if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
pr_notice("arcmsr%d: wait get adapter firmware "
"miscellaneous data timeout\n", pACB->host->host_no);
return false;
}
arcmsr_get_adapter_config(pACB, reg->msgcode_rwbuffer);
return true;
}
static bool arcmsr_hbaF_get_config(struct AdapterControlBlock *pACB)
{
struct MessageUnit_F __iomem *reg = pACB->pmuF;
uint32_t intmask_org;
/* disable all outbound interrupt */
intmask_org = readl(®->host_int_mask); /* disable outbound message0 int */
writel(intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE, ®->host_int_mask);
/* wait firmware ready */
arcmsr_wait_firmware_ready(pACB);
/* post "get config" instruction */
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pACB->out_doorbell, ®->iobound_doorbell);
/* wait message ready */
if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
pr_notice("arcmsr%d: wait get adapter firmware miscellaneous data timeout\n",
pACB->host->host_no);
return false;
}
arcmsr_get_adapter_config(pACB, pACB->msgcode_rwbuffer);
return true;
}
static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
{
bool rtn = false;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
rtn = arcmsr_hbaA_get_config(acb);
break;
case ACB_ADAPTER_TYPE_B:
rtn = arcmsr_hbaB_get_config(acb);
break;
case ACB_ADAPTER_TYPE_C:
rtn = arcmsr_hbaC_get_config(acb);
break;
case ACB_ADAPTER_TYPE_D:
rtn = arcmsr_hbaD_get_config(acb);
break;
case ACB_ADAPTER_TYPE_E:
rtn = arcmsr_hbaE_get_config(acb);
break;
case ACB_ADAPTER_TYPE_F:
rtn = arcmsr_hbaF_get_config(acb);
break;
default:
break;
}
acb->maxOutstanding = acb->firm_numbers_queue - 1;
if (acb->host->can_queue >= acb->firm_numbers_queue)
acb->host->can_queue = acb->maxOutstanding;
else
acb->maxOutstanding = acb->host->can_queue;
acb->maxFreeCCB = acb->host->can_queue;
if (acb->maxFreeCCB < ARCMSR_MAX_FREECCB_NUM)
acb->maxFreeCCB += 64;
return rtn;
}
static int arcmsr_hbaA_polling_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock *poll_ccb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
struct CommandControlBlock *ccb;
struct ARCMSR_CDB *arcmsr_cdb;
uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
int rtn;
bool error;
unsigned long ccb_cdb_phy;
polling_hba_ccb_retry:
poll_count++;
outbound_intstatus = readl(®->outbound_intstatus) & acb->outbound_int_enable;
writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
while (1) {
if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) {
if (poll_ccb_done){
rtn = SUCCESS;
break;
}else {
msleep(25);
if (poll_count > 100){
rtn = FAILED;
break;
}
goto polling_hba_ccb_retry;
}
}
ccb_cdb_phy = (flag_ccb << 5) & 0xffffffff;
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
poll_ccb_done |= (ccb == poll_ccb) ? 1 : 0;
if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
" poll command abort successfully \n"
, acb->host->host_no
, ccb->pcmd->device->id
, (u32)ccb->pcmd->device->lun
, ccb);
ccb->pcmd->result = DID_ABORT << 16;
arcmsr_ccb_complete(ccb);
continue;
}
printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
" command done ccb = '0x%p'"
"ccboutstandingcount = %d \n"
, acb->host->host_no
, ccb
, atomic_read(&acb->ccboutstandingcount));
continue;
}
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
arcmsr_report_ccb_state(acb, ccb, error);
}
return rtn;
}
static int arcmsr_hbaB_polling_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock *poll_ccb)
{
struct MessageUnit_B *reg = acb->pmuB;
struct ARCMSR_CDB *arcmsr_cdb;
struct CommandControlBlock *ccb;
uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0;
int index, rtn;
bool error;
unsigned long ccb_cdb_phy;
polling_hbb_ccb_retry:
poll_count++;
/* clear doorbell interrupt */
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
while(1){
index = reg->doneq_index;
flag_ccb = reg->done_qbuffer[index];
if (flag_ccb == 0) {
if (poll_ccb_done){
rtn = SUCCESS;
break;
}else {
msleep(25);
if (poll_count > 100){
rtn = FAILED;
break;
}
goto polling_hbb_ccb_retry;
}
}
reg->done_qbuffer[index] = 0;
index++;
/*if last index number set it to 0 */
index %= ARCMSR_MAX_HBB_POSTQUEUE;
reg->doneq_index = index;
/* check if command done with no error*/
ccb_cdb_phy = (flag_ccb << 5) & 0xffffffff;
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
poll_ccb_done |= (ccb == poll_ccb) ? 1 : 0;
if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
" poll command abort successfully \n"
,acb->host->host_no
,ccb->pcmd->device->id
,(u32)ccb->pcmd->device->lun
,ccb);
ccb->pcmd->result = DID_ABORT << 16;
arcmsr_ccb_complete(ccb);
continue;
}
printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
" command done ccb = '0x%p'"
"ccboutstandingcount = %d \n"
, acb->host->host_no
, ccb
, atomic_read(&acb->ccboutstandingcount));
continue;
}
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
arcmsr_report_ccb_state(acb, ccb, error);
}
return rtn;
}
static int arcmsr_hbaC_polling_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock *poll_ccb)
{
struct MessageUnit_C __iomem *reg = acb->pmuC;
uint32_t flag_ccb;
struct ARCMSR_CDB *arcmsr_cdb;
bool error;
struct CommandControlBlock *pCCB;
uint32_t poll_ccb_done = 0, poll_count = 0;
int rtn;
unsigned long ccb_cdb_phy;
polling_hbc_ccb_retry:
poll_count++;
while (1) {
if ((readl(®->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) == 0) {
if (poll_ccb_done) {
rtn = SUCCESS;
break;
} else {
msleep(25);
if (poll_count > 100) {
rtn = FAILED;
break;
}
goto polling_hbc_ccb_retry;
}
}
flag_ccb = readl(®->outbound_queueport_low);
ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
pCCB = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
poll_ccb_done |= (pCCB == poll_ccb) ? 1 : 0;
/* check ifcommand done with no error*/
if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
" poll command abort successfully \n"
, acb->host->host_no
, pCCB->pcmd->device->id
, (u32)pCCB->pcmd->device->lun
, pCCB);
pCCB->pcmd->result = DID_ABORT << 16;
arcmsr_ccb_complete(pCCB);
continue;
}
printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
" command done ccb = '0x%p'"
"ccboutstandingcount = %d \n"
, acb->host->host_no
, pCCB
, atomic_read(&acb->ccboutstandingcount));
continue;
}
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
arcmsr_report_ccb_state(acb, pCCB, error);
}
return rtn;
}
static int arcmsr_hbaD_polling_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock *poll_ccb)
{
bool error;
uint32_t poll_ccb_done = 0, poll_count = 0, flag_ccb;
int rtn, doneq_index, index_stripped, outbound_write_pointer, toggle;
unsigned long flags, ccb_cdb_phy;
struct ARCMSR_CDB *arcmsr_cdb;
struct CommandControlBlock *pCCB;
struct MessageUnit_D *pmu = acb->pmuD;
polling_hbaD_ccb_retry:
poll_count++;
while (1) {
spin_lock_irqsave(&acb->doneq_lock, flags);
outbound_write_pointer = pmu->done_qbuffer[0].addressLow + 1;
doneq_index = pmu->doneq_index;
if ((outbound_write_pointer & 0xFFF) == (doneq_index & 0xFFF)) {
spin_unlock_irqrestore(&acb->doneq_lock, flags);
if (poll_ccb_done) {
rtn = SUCCESS;
break;
} else {
msleep(25);
if (poll_count > 40) {
rtn = FAILED;
break;
}
goto polling_hbaD_ccb_retry;
}
}
toggle = doneq_index & 0x4000;
index_stripped = (doneq_index & 0xFFF) + 1;
index_stripped %= ARCMSR_MAX_ARC1214_DONEQUEUE;
pmu->doneq_index = index_stripped ? (index_stripped | toggle) :
((toggle ^ 0x4000) + 1);
doneq_index = pmu->doneq_index;
spin_unlock_irqrestore(&acb->doneq_lock, flags);
flag_ccb = pmu->done_qbuffer[doneq_index & 0xFFF].addressLow;
ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
if (acb->cdb_phyadd_hipart)
ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset +
ccb_cdb_phy);
pCCB = container_of(arcmsr_cdb, struct CommandControlBlock,
arcmsr_cdb);
poll_ccb_done |= (pCCB == poll_ccb) ? 1 : 0;
if ((pCCB->acb != acb) ||
(pCCB->startdone != ARCMSR_CCB_START)) {
if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
pr_notice("arcmsr%d: scsi id = %d "
"lun = %d ccb = '0x%p' poll command "
"abort successfully\n"
, acb->host->host_no
, pCCB->pcmd->device->id
, (u32)pCCB->pcmd->device->lun
, pCCB);
pCCB->pcmd->result = DID_ABORT << 16;
arcmsr_ccb_complete(pCCB);
continue;
}
pr_notice("arcmsr%d: polling an illegal "
"ccb command done ccb = '0x%p' "
"ccboutstandingcount = %d\n"
, acb->host->host_no
, pCCB
, atomic_read(&acb->ccboutstandingcount));
continue;
}
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1)
? true : false;
arcmsr_report_ccb_state(acb, pCCB, error);
}
return rtn;
}
static int arcmsr_hbaE_polling_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock *poll_ccb)
{
bool error;
uint32_t poll_ccb_done = 0, poll_count = 0, doneq_index;
uint16_t cmdSMID;
unsigned long flags;
int rtn;
struct CommandControlBlock *pCCB;
struct MessageUnit_E __iomem *reg = acb->pmuE;
polling_hbaC_ccb_retry:
poll_count++;
while (1) {
spin_lock_irqsave(&acb->doneq_lock, flags);
doneq_index = acb->doneq_index;
if ((readl(®->reply_post_producer_index) & 0xFFFF) ==
doneq_index) {
spin_unlock_irqrestore(&acb->doneq_lock, flags);
if (poll_ccb_done) {
rtn = SUCCESS;
break;
} else {
msleep(25);
if (poll_count > 40) {
rtn = FAILED;
break;
}
goto polling_hbaC_ccb_retry;
}
}
cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
doneq_index++;
if (doneq_index >= acb->completionQ_entry)
doneq_index = 0;
acb->doneq_index = doneq_index;
spin_unlock_irqrestore(&acb->doneq_lock, flags);
pCCB = acb->pccb_pool[cmdSMID];
poll_ccb_done |= (pCCB == poll_ccb) ? 1 : 0;
/* check if command done with no error*/
if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
pr_notice("arcmsr%d: scsi id = %d "
"lun = %d ccb = '0x%p' poll command "
"abort successfully\n"
, acb->host->host_no
, pCCB->pcmd->device->id
, (u32)pCCB->pcmd->device->lun
, pCCB);
pCCB->pcmd->result = DID_ABORT << 16;
arcmsr_ccb_complete(pCCB);
continue;
}
pr_notice("arcmsr%d: polling an illegal "
"ccb command done ccb = '0x%p' "
"ccboutstandingcount = %d\n"
, acb->host->host_no
, pCCB
, atomic_read(&acb->ccboutstandingcount));
continue;
}
error = (acb->pCompletionQ[doneq_index].cmdFlag &
ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
arcmsr_report_ccb_state(acb, pCCB, error);
}
writel(doneq_index, ®->reply_post_consumer_index);
return rtn;
}
static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock *poll_ccb)
{
int rtn = 0;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
rtn = arcmsr_hbaA_polling_ccbdone(acb, poll_ccb);
break;
case ACB_ADAPTER_TYPE_B:
rtn = arcmsr_hbaB_polling_ccbdone(acb, poll_ccb);
break;
case ACB_ADAPTER_TYPE_C:
rtn = arcmsr_hbaC_polling_ccbdone(acb, poll_ccb);
break;
case ACB_ADAPTER_TYPE_D:
rtn = arcmsr_hbaD_polling_ccbdone(acb, poll_ccb);
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:
rtn = arcmsr_hbaE_polling_ccbdone(acb, poll_ccb);
break;
}
return rtn;
}
static void arcmsr_set_iop_datetime(struct timer_list *t)
{
struct AdapterControlBlock *pacb = from_timer(pacb, t, refresh_timer);
unsigned int next_time;
struct tm tm;
union {
struct {
uint16_t signature;
uint8_t year;
uint8_t month;
uint8_t date;
uint8_t hour;
uint8_t minute;
uint8_t second;
} a;
struct {
uint32_t msg_time[2];
} b;
} datetime;
time64_to_tm(ktime_get_real_seconds(), -sys_tz.tz_minuteswest * 60, &tm);
datetime.a.signature = 0x55AA;
datetime.a.year = tm.tm_year - 100; /* base 2000 instead of 1900 */
datetime.a.month = tm.tm_mon;
datetime.a.date = tm.tm_mday;
datetime.a.hour = tm.tm_hour;
datetime.a.minute = tm.tm_min;
datetime.a.second = tm.tm_sec;
switch (pacb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = pacb->pmuA;
writel(datetime.b.msg_time[0], ®->message_rwbuffer[0]);
writel(datetime.b.msg_time[1], ®->message_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, ®->inbound_msgaddr0);
break;
}
case ACB_ADAPTER_TYPE_B: {
uint32_t __iomem *rwbuffer;
struct MessageUnit_B *reg = pacb->pmuB;
rwbuffer = reg->message_rwbuffer;
writel(datetime.b.msg_time[0], rwbuffer++);
writel(datetime.b.msg_time[1], rwbuffer++);
writel(ARCMSR_MESSAGE_SYNC_TIMER, reg->drv2iop_doorbell);
break;
}
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = pacb->pmuC;
writel(datetime.b.msg_time[0], ®->msgcode_rwbuffer[0]);
writel(datetime.b.msg_time[1], ®->msgcode_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, ®->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
break;
}
case ACB_ADAPTER_TYPE_D: {
uint32_t __iomem *rwbuffer;
struct MessageUnit_D *reg = pacb->pmuD;
rwbuffer = reg->msgcode_rwbuffer;
writel(datetime.b.msg_time[0], rwbuffer++);
writel(datetime.b.msg_time[1], rwbuffer++);
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, reg->inbound_msgaddr0);
break;
}
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *reg = pacb->pmuE;
writel(datetime.b.msg_time[0], ®->msgcode_rwbuffer[0]);
writel(datetime.b.msg_time[1], ®->msgcode_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, ®->inbound_msgaddr0);
pacb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pacb->out_doorbell, ®->iobound_doorbell);
break;
}
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_F __iomem *reg = pacb->pmuF;
pacb->msgcode_rwbuffer[0] = datetime.b.msg_time[0];
pacb->msgcode_rwbuffer[1] = datetime.b.msg_time[1];
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, ®->inbound_msgaddr0);
pacb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pacb->out_doorbell, ®->iobound_doorbell);
break;
}
}
if (sys_tz.tz_minuteswest)
next_time = ARCMSR_HOURS;
else
next_time = ARCMSR_MINUTES;
mod_timer(&pacb->refresh_timer, jiffies + msecs_to_jiffies(next_time));
}
static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
{
uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
dma_addr_t dma_coherent_handle;
/*
********************************************************************
** here we need to tell iop 331 our freeccb.HighPart
** if freeccb.HighPart is not zero
********************************************************************
*/
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_B:
case ACB_ADAPTER_TYPE_D:
dma_coherent_handle = acb->dma_coherent_handle2;
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:
dma_coherent_handle = acb->dma_coherent_handle +
offsetof(struct CommandControlBlock, arcmsr_cdb);
break;
default:
dma_coherent_handle = acb->dma_coherent_handle;
break;
}
cdb_phyaddr = lower_32_bits(dma_coherent_handle);
cdb_phyaddr_hi32 = upper_32_bits(dma_coherent_handle);
acb->cdb_phyaddr_hi32 = cdb_phyaddr_hi32;
acb->cdb_phyadd_hipart = ((uint64_t)cdb_phyaddr_hi32) << 32;
/*
***********************************************************************
** if adapter type B, set window of "post command Q"
***********************************************************************
*/
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
if (cdb_phyaddr_hi32 != 0) {
struct MessageUnit_A __iomem *reg = acb->pmuA;
writel(ARCMSR_SIGNATURE_SET_CONFIG, \
®->message_rwbuffer[0]);
writel(cdb_phyaddr_hi32, ®->message_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, \
®->inbound_msgaddr0);
if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: ""set ccb high \
part physical address timeout\n",
acb->host->host_no);
return 1;
}
}
}
break;
case ACB_ADAPTER_TYPE_B: {
uint32_t __iomem *rwbuffer;
struct MessageUnit_B *reg = acb->pmuB;
reg->postq_index = 0;
reg->doneq_index = 0;
writel(ARCMSR_MESSAGE_SET_POST_WINDOW, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: cannot set driver mode\n", \
acb->host->host_no);
return 1;
}
rwbuffer = reg->message_rwbuffer;
/* driver "set config" signature */
writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
/* normal should be zero */
writel(cdb_phyaddr_hi32, rwbuffer++);
/* postQ size (256 + 8)*4 */
writel(cdb_phyaddr, rwbuffer++);
/* doneQ size (256 + 8)*4 */
writel(cdb_phyaddr + 1056, rwbuffer++);
/* ccb maxQ size must be --> [(256 + 8)*4]*/
writel(1056, rwbuffer);
writel(ARCMSR_MESSAGE_SET_CONFIG, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
timeout \n",acb->host->host_no);
return 1;
}
writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
pr_err("arcmsr%d: can't set driver mode.\n",
acb->host->host_no);
return 1;
}
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x\n",
acb->adapter_index, cdb_phyaddr_hi32);
writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->msgcode_rwbuffer[0]);
writel(cdb_phyaddr_hi32, ®->msgcode_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
if (!arcmsr_hbaC_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
timeout \n", acb->host->host_no);
return 1;
}
}
break;
case ACB_ADAPTER_TYPE_D: {
uint32_t __iomem *rwbuffer;
struct MessageUnit_D *reg = acb->pmuD;
reg->postq_index = 0;
reg->doneq_index = 0;
rwbuffer = reg->msgcode_rwbuffer;
writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
writel(cdb_phyaddr_hi32, rwbuffer++);
writel(cdb_phyaddr, rwbuffer++);
writel(cdb_phyaddr + (ARCMSR_MAX_ARC1214_POSTQUEUE *
sizeof(struct InBound_SRB)), rwbuffer++);
writel(0x100, rwbuffer);
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, reg->inbound_msgaddr0);
if (!arcmsr_hbaD_wait_msgint_ready(acb)) {
pr_notice("arcmsr%d: 'set command Q window' timeout\n",
acb->host->host_no);
return 1;
}
}
break;
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->msgcode_rwbuffer[0]);
writel(ARCMSR_SIGNATURE_1884, ®->msgcode_rwbuffer[1]);
writel(cdb_phyaddr, ®->msgcode_rwbuffer[2]);
writel(cdb_phyaddr_hi32, ®->msgcode_rwbuffer[3]);
writel(acb->ccbsize, ®->msgcode_rwbuffer[4]);
writel(lower_32_bits(acb->dma_coherent_handle2), ®->msgcode_rwbuffer[5]);
writel(upper_32_bits(acb->dma_coherent_handle2), ®->msgcode_rwbuffer[6]);
writel(acb->ioqueue_size, ®->msgcode_rwbuffer[7]);
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0);
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(acb->out_doorbell, ®->iobound_doorbell);
if (!arcmsr_hbaE_wait_msgint_ready(acb)) {
pr_notice("arcmsr%d: 'set command Q window' timeout \n",
acb->host->host_no);
return 1;
}
}
break;
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_F __iomem *reg = acb->pmuF;
acb->msgcode_rwbuffer[0] = ARCMSR_SIGNATURE_SET_CONFIG;
acb->msgcode_rwbuffer[1] = ARCMSR_SIGNATURE_1886;
acb->msgcode_rwbuffer[2] = cdb_phyaddr;
acb->msgcode_rwbuffer[3] = cdb_phyaddr_hi32;
acb->msgcode_rwbuffer[4] = acb->ccbsize;
acb->msgcode_rwbuffer[5] = lower_32_bits(acb->dma_coherent_handle2);
acb->msgcode_rwbuffer[6] = upper_32_bits(acb->dma_coherent_handle2);
acb->msgcode_rwbuffer[7] = acb->completeQ_size;
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0);
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(acb->out_doorbell, ®->iobound_doorbell);
if (!arcmsr_hbaE_wait_msgint_ready(acb)) {
pr_notice("arcmsr%d: 'set command Q window' timeout\n",
acb->host->host_no);
return 1;
}
}
break;
}
return 0;
}
static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
{
uint32_t firmware_state = 0;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
do {
if (!(acb->acb_flags & ACB_F_IOP_INITED))
msleep(20);
firmware_state = readl(®->outbound_msgaddr1);
} while ((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0);
}
break;
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
do {
if (!(acb->acb_flags & ACB_F_IOP_INITED))
msleep(20);
firmware_state = readl(reg->iop2drv_doorbell);
} while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) == 0);
writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
do {
if (!(acb->acb_flags & ACB_F_IOP_INITED))
msleep(20);
firmware_state = readl(®->outbound_msgaddr1);
} while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
do {
if (!(acb->acb_flags & ACB_F_IOP_INITED))
msleep(20);
firmware_state = readl(reg->outbound_msgaddr1);
} while ((firmware_state &
ARCMSR_ARC1214_MESSAGE_FIRMWARE_OK) == 0);
}
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
do {
if (!(acb->acb_flags & ACB_F_IOP_INITED))
msleep(20);
firmware_state = readl(®->outbound_msgaddr1);
} while ((firmware_state & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0);
}
break;
}
}
static void arcmsr_request_device_map(struct timer_list *t)
{
struct AdapterControlBlock *acb = from_timer(acb, t, eternal_timer);
if (acb->acb_flags & (ACB_F_MSG_GET_CONFIG | ACB_F_BUS_RESET | ACB_F_ABORT)) {
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
} else {
acb->fw_flag = FW_NORMAL;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
break;
}
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
break;
}
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, ®->inbound_doorbell);
break;
}
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, reg->inbound_msgaddr0);
break;
}
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(acb->out_doorbell, ®->iobound_doorbell);
break;
}
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_F __iomem *reg = acb->pmuF;
uint32_t outMsg1 = readl(®->outbound_msgaddr1);
if (!(outMsg1 & ARCMSR_HBFMU_MESSAGE_FIRMWARE_OK) ||
(outMsg1 & ARCMSR_HBFMU_MESSAGE_NO_VOLUME_CHANGE))
goto nxt6s;
writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(acb->out_doorbell, ®->iobound_doorbell);
break;
}
default:
return;
}
acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
nxt6s:
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
}
}
static void arcmsr_hbaA_start_bgrb(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
acb->acb_flags |= ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0);
if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
rebuild' timeout \n", acb->host->host_no);
}
}
static void arcmsr_hbaB_start_bgrb(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
acb->acb_flags |= ACB_F_MSG_START_BGRB;
writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
rebuild' timeout \n",acb->host->host_no);
}
}
static void arcmsr_hbaC_start_bgrb(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
pACB->acb_flags |= ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_START_BGRB, &phbcmu->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &phbcmu->inbound_doorbell);
if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
rebuild' timeout \n", pACB->host->host_no);
}
return;
}
static void arcmsr_hbaD_start_bgrb(struct AdapterControlBlock *pACB)
{
struct MessageUnit_D *pmu = pACB->pmuD;
pACB->acb_flags |= ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_START_BGRB, pmu->inbound_msgaddr0);
if (!arcmsr_hbaD_wait_msgint_ready(pACB)) {
pr_notice("arcmsr%d: wait 'start adapter "
"background rebuild' timeout\n", pACB->host->host_no);
}
}
static void arcmsr_hbaE_start_bgrb(struct AdapterControlBlock *pACB)
{
struct MessageUnit_E __iomem *pmu = pACB->pmuE;
pACB->acb_flags |= ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_START_BGRB, &pmu->inbound_msgaddr0);
pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pACB->out_doorbell, &pmu->iobound_doorbell);
if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
pr_notice("arcmsr%d: wait 'start adapter "
"background rebuild' timeout \n", pACB->host->host_no);
}
}
static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
arcmsr_hbaA_start_bgrb(acb);
break;
case ACB_ADAPTER_TYPE_B:
arcmsr_hbaB_start_bgrb(acb);
break;
case ACB_ADAPTER_TYPE_C:
arcmsr_hbaC_start_bgrb(acb);
break;
case ACB_ADAPTER_TYPE_D:
arcmsr_hbaD_start_bgrb(acb);
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:
arcmsr_hbaE_start_bgrb(acb);
break;
}
}
static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = acb->pmuA;
uint32_t outbound_doorbell;
/* empty doorbell Qbuffer if door bell ringed */
outbound_doorbell = readl(®->outbound_doorbell);
/*clear doorbell interrupt */
writel(outbound_doorbell, ®->outbound_doorbell);
writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
}
break;
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
uint32_t outbound_doorbell, i;
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
/* let IOP know data has been read */
for(i=0; i < 200; i++) {
msleep(20);
outbound_doorbell = readl(reg->iop2drv_doorbell);
if( outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
} else
break;
}
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = acb->pmuC;
uint32_t outbound_doorbell, i;
/* empty doorbell Qbuffer if door bell ringed */
outbound_doorbell = readl(®->outbound_doorbell);
writel(outbound_doorbell, ®->outbound_doorbell_clear);
writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, ®->inbound_doorbell);
for (i = 0; i < 200; i++) {
msleep(20);
outbound_doorbell = readl(®->outbound_doorbell);
if (outbound_doorbell &
ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
writel(outbound_doorbell,
®->outbound_doorbell_clear);
writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK,
®->inbound_doorbell);
} else
break;
}
}
break;
case ACB_ADAPTER_TYPE_D: {
struct MessageUnit_D *reg = acb->pmuD;
uint32_t outbound_doorbell, i;
/* empty doorbell Qbuffer if door bell ringed */
outbound_doorbell = readl(reg->outbound_doorbell);
writel(outbound_doorbell, reg->outbound_doorbell);
writel(ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ,
reg->inbound_doorbell);
for (i = 0; i < 200; i++) {
msleep(20);
outbound_doorbell = readl(reg->outbound_doorbell);
if (outbound_doorbell &
ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK) {
writel(outbound_doorbell,
reg->outbound_doorbell);
writel(ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ,
reg->inbound_doorbell);
} else
break;
}
}
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F: {
struct MessageUnit_E __iomem *reg = acb->pmuE;
uint32_t i, tmp;
acb->in_doorbell = readl(®->iobound_doorbell);
writel(0, ®->host_int_status); /*clear interrupt*/
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
writel(acb->out_doorbell, ®->iobound_doorbell);
for(i=0; i < 200; i++) {
msleep(20);
tmp = acb->in_doorbell;
acb->in_doorbell = readl(®->iobound_doorbell);
if((tmp ^ acb->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
writel(0, ®->host_int_status); /*clear interrupt*/
acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
writel(acb->out_doorbell, ®->iobound_doorbell);
} else
break;
}
}
break;
}
}
static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:
return;
case ACB_ADAPTER_TYPE_B:
{
struct MessageUnit_B *reg = acb->pmuB;
writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE, reg->drv2iop_doorbell);
if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "ARCMSR IOP enables EOI_MODE TIMEOUT");
return;
}
}
break;
case ACB_ADAPTER_TYPE_C:
return;
}
return;
}
static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
{
uint8_t value[64];
int i, count = 0;
struct MessageUnit_A __iomem *pmuA = acb->pmuA;
struct MessageUnit_C __iomem *pmuC = acb->pmuC;
struct MessageUnit_D *pmuD = acb->pmuD;
/* backup pci config data */
printk(KERN_NOTICE "arcmsr%d: executing hw bus reset .....\n", acb->host->host_no);
for (i = 0; i < 64; i++) {
pci_read_config_byte(acb->pdev, i, &value[i]);
}
/* hardware reset signal */
if (acb->dev_id == 0x1680) {
writel(ARCMSR_ARC1680_BUS_RESET, &pmuA->reserved1[0]);
} else if (acb->dev_id == 0x1880) {
do {
count++;
writel(0xF, &pmuC->write_sequence);
writel(0x4, &pmuC->write_sequence);
writel(0xB, &pmuC->write_sequence);
writel(0x2, &pmuC->write_sequence);
writel(0x7, &pmuC->write_sequence);
writel(0xD, &pmuC->write_sequence);
} while (((readl(&pmuC->host_diagnostic) & ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5));
writel(ARCMSR_ARC1880_RESET_ADAPTER, &pmuC->host_diagnostic);
} else if (acb->dev_id == 0x1884) {
struct MessageUnit_E __iomem *pmuE = acb->pmuE;
do {
count++;
writel(0x4, &pmuE->write_sequence_3xxx);
writel(0xB, &pmuE->write_sequence_3xxx);
writel(0x2, &pmuE->write_sequence_3xxx);
writel(0x7, &pmuE->write_sequence_3xxx);
writel(0xD, &pmuE->write_sequence_3xxx);
mdelay(10);
} while (((readl(&pmuE->host_diagnostic_3xxx) &
ARCMSR_ARC1884_DiagWrite_ENABLE) == 0) && (count < 5));
writel(ARCMSR_ARC188X_RESET_ADAPTER, &pmuE->host_diagnostic_3xxx);
} else if (acb->dev_id == 0x1214) {
writel(0x20, pmuD->reset_request);
} else {
pci_write_config_byte(acb->pdev, 0x84, 0x20);
}
msleep(2000);
/* write back pci config data */
for (i = 0; i < 64; i++) {
pci_write_config_byte(acb->pdev, i, value[i]);
}
msleep(1000);
return;
}
static bool arcmsr_reset_in_progress(struct AdapterControlBlock *acb)
{
bool rtn = true;
switch(acb->adapter_type) {
case ACB_ADAPTER_TYPE_A:{
struct MessageUnit_A __iomem *reg = acb->pmuA;
rtn = ((readl(®->outbound_msgaddr1) &
ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) ? true : false;
}
break;
case ACB_ADAPTER_TYPE_B:{
struct MessageUnit_B *reg = acb->pmuB;
rtn = ((readl(reg->iop2drv_doorbell) &
ARCMSR_MESSAGE_FIRMWARE_OK) == 0) ? true : false;
}
break;
case ACB_ADAPTER_TYPE_C:{
struct MessageUnit_C __iomem *reg = acb->pmuC;
rtn = (readl(®->host_diagnostic) & 0x04) ? true : false;
}
break;
case ACB_ADAPTER_TYPE_D:{
struct MessageUnit_D *reg = acb->pmuD;
rtn = ((readl(reg->sample_at_reset) & 0x80) == 0) ?
true : false;
}
break;
case ACB_ADAPTER_TYPE_E:
case ACB_ADAPTER_TYPE_F:{
struct MessageUnit_E __iomem *reg = acb->pmuE;
rtn = (readl(®->host_diagnostic_3xxx) &
ARCMSR_ARC188X_RESET_ADAPTER) ? true : false;
}
break;
}
return rtn;
}
static void arcmsr_iop_init(struct AdapterControlBlock *acb)
{
uint32_t intmask_org;
/* disable all outbound interrupt */
intmask_org = arcmsr_disable_outbound_ints(acb);
arcmsr_wait_firmware_ready(acb);
arcmsr_iop_confirm(acb);
/*start background rebuild*/
arcmsr_start_adapter_bgrb(acb);
/* empty doorbell Qbuffer if door bell ringed */
arcmsr_clear_doorbell_queue_buffer(acb);
arcmsr_enable_eoi_mode(acb);
/* enable outbound Post Queue,outbound doorbell Interrupt */
arcmsr_enable_outbound_ints(acb, intmask_org);
acb->acb_flags |= ACB_F_IOP_INITED;
}
static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
{
struct CommandControlBlock *ccb;
uint32_t intmask_org;
uint8_t rtnval = 0x00;
int i = 0;
unsigned long flags;
if (atomic_read(&acb->ccboutstandingcount) != 0) {
/* disable all outbound interrupt */
intmask_org = arcmsr_disable_outbound_ints(acb);
/* talk to iop 331 outstanding command aborted */
rtnval = arcmsr_abort_allcmd(acb);
/* clear all outbound posted Q */
arcmsr_done4abort_postqueue(acb);
for (i = 0; i < acb->maxFreeCCB; i++) {
ccb = acb->pccb_pool[i];
if (ccb->startdone == ARCMSR_CCB_START) {
scsi_dma_unmap(ccb->pcmd);
ccb->startdone = ARCMSR_CCB_DONE;
ccb->ccb_flags = 0;
spin_lock_irqsave(&acb->ccblist_lock, flags);
list_add_tail(&ccb->list, &acb->ccb_free_list);
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
}
}
atomic_set(&acb->ccboutstandingcount, 0);
/* enable all outbound interrupt */
arcmsr_enable_outbound_ints(acb, intmask_org);
return rtnval;
}
return rtnval;
}
static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
{
struct AdapterControlBlock *acb;
int retry_count = 0;
int rtn = FAILED;
acb = (struct AdapterControlBlock *) cmd->device->host->hostdata;
if (acb->acb_flags & ACB_F_ADAPTER_REMOVED)
return SUCCESS;
pr_notice("arcmsr: executing bus reset eh.....num_resets = %d,"
" num_aborts = %d \n", acb->num_resets, acb->num_aborts);
acb->num_resets++;
if (acb->acb_flags & ACB_F_BUS_RESET) {
long timeout;
pr_notice("arcmsr: there is a bus reset eh proceeding...\n");
timeout = wait_event_timeout(wait_q, (acb->acb_flags
& ACB_F_BUS_RESET) == 0, 220 * HZ);
if (timeout)
return SUCCESS;
}
acb->acb_flags |= ACB_F_BUS_RESET;
if (!arcmsr_iop_reset(acb)) {
arcmsr_hardware_reset(acb);
acb->acb_flags &= ~ACB_F_IOP_INITED;
wait_reset_done:
ssleep(ARCMSR_SLEEPTIME);
if (arcmsr_reset_in_progress(acb)) {
if (retry_count > ARCMSR_RETRYCOUNT) {
acb->fw_flag = FW_DEADLOCK;
pr_notice("arcmsr%d: waiting for hw bus reset"
" return, RETRY TERMINATED!!\n",
acb->host->host_no);
return FAILED;
}
retry_count++;
goto wait_reset_done;
}
arcmsr_iop_init(acb);
acb->fw_flag = FW_NORMAL;
mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6 * HZ));
acb->acb_flags &= ~ACB_F_BUS_RESET;
rtn = SUCCESS;
pr_notice("arcmsr: scsi bus reset eh returns with success\n");
} else {
acb->acb_flags &= ~ACB_F_BUS_RESET;
acb->fw_flag = FW_NORMAL;
mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6 * HZ));
rtn = SUCCESS;
}
return rtn;
}
static int arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
struct CommandControlBlock *ccb)
{
int rtn;
rtn = arcmsr_polling_ccbdone(acb, ccb);
return rtn;
}
static int arcmsr_abort(struct scsi_cmnd *cmd)
{
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *)cmd->device->host->hostdata;
int i = 0;
int rtn = FAILED;
uint32_t intmask_org;
if (acb->acb_flags & ACB_F_ADAPTER_REMOVED)
return SUCCESS;
printk(KERN_NOTICE
"arcmsr%d: abort device command of scsi id = %d lun = %d\n",
acb->host->host_no, cmd->device->id, (u32)cmd->device->lun);
acb->acb_flags |= ACB_F_ABORT;
acb->num_aborts++;
/*
************************************************
** the all interrupt service routine is locked
** we need to handle it as soon as possible and exit
************************************************
*/
if (!atomic_read(&acb->ccboutstandingcount)) {
acb->acb_flags &= ~ACB_F_ABORT;
return rtn;
}
intmask_org = arcmsr_disable_outbound_ints(acb);
for (i = 0; i < acb->maxFreeCCB; i++) {
struct CommandControlBlock *ccb = acb->pccb_pool[i];
if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
ccb->startdone = ARCMSR_CCB_ABORTED;
rtn = arcmsr_abort_one_cmd(acb, ccb);
break;
}
}
acb->acb_flags &= ~ACB_F_ABORT;
arcmsr_enable_outbound_ints(acb, intmask_org);
return rtn;
}
static const char *arcmsr_info(struct Scsi_Host *host)
{
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
static char buf[256];
char *type;
int raid6 = 1;
switch (acb->pdev->device) {
case PCI_DEVICE_ID_ARECA_1110:
case PCI_DEVICE_ID_ARECA_1200:
case PCI_DEVICE_ID_ARECA_1202:
case PCI_DEVICE_ID_ARECA_1210:
raid6 = 0;
fallthrough;
case PCI_DEVICE_ID_ARECA_1120:
case PCI_DEVICE_ID_ARECA_1130:
case PCI_DEVICE_ID_ARECA_1160:
case PCI_DEVICE_ID_ARECA_1170:
case PCI_DEVICE_ID_ARECA_1201:
case PCI_DEVICE_ID_ARECA_1203:
case PCI_DEVICE_ID_ARECA_1220:
case PCI_DEVICE_ID_ARECA_1230:
case PCI_DEVICE_ID_ARECA_1260:
case PCI_DEVICE_ID_ARECA_1270:
case PCI_DEVICE_ID_ARECA_1280:
type = "SATA";
break;
case PCI_DEVICE_ID_ARECA_1214:
case PCI_DEVICE_ID_ARECA_1380:
case PCI_DEVICE_ID_ARECA_1381:
case PCI_DEVICE_ID_ARECA_1680:
case PCI_DEVICE_ID_ARECA_1681:
case PCI_DEVICE_ID_ARECA_1880:
case PCI_DEVICE_ID_ARECA_1884:
type = "SAS/SATA";
break;
case PCI_DEVICE_ID_ARECA_1886:
type = "NVMe/SAS/SATA";
break;
default:
type = "unknown";
raid6 = 0;
break;
}
sprintf(buf, "Areca %s RAID Controller %s\narcmsr version %s\n",
type, raid6 ? "(RAID6 capable)" : "", ARCMSR_DRIVER_VERSION);
return buf;
}
|
linux-master
|
drivers/scsi/arcmsr/arcmsr_hba.c
|
/*
*******************************************************************************
** O.S : Linux
** FILE NAME : arcmsr_attr.c
** BY : Nick Cheng
** Description: attributes exported to sysfs and device host
*******************************************************************************
** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
**
** Web site: www.areca.com.tw
** E-mail: [email protected]
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License version 2 as
** published by the Free Software Foundation.
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
*******************************************************************************
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
** Firmware Specification, see Documentation/scsi/arcmsr_spec.rst
*******************************************************************************
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/circ_buf.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport.h>
#include "arcmsr.h"
static ssize_t arcmsr_sysfs_iop_message_read(struct file *filp,
struct kobject *kobj,
struct bin_attribute *bin,
char *buf, loff_t off,
size_t count)
{
struct device *dev = container_of(kobj,struct device,kobj);
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
uint8_t *ptmpQbuffer;
int32_t allxfer_len = 0;
unsigned long flags;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
/* do message unit read. */
ptmpQbuffer = (uint8_t *)buf;
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
if (acb->rqbuf_getIndex != acb->rqbuf_putIndex) {
unsigned int tail = acb->rqbuf_getIndex;
unsigned int head = acb->rqbuf_putIndex;
unsigned int cnt_to_end = CIRC_CNT_TO_END(head, tail, ARCMSR_MAX_QBUFFER);
allxfer_len = CIRC_CNT(head, tail, ARCMSR_MAX_QBUFFER);
if (allxfer_len > ARCMSR_API_DATA_BUFLEN)
allxfer_len = ARCMSR_API_DATA_BUFLEN;
if (allxfer_len <= cnt_to_end)
memcpy(ptmpQbuffer, acb->rqbuffer + tail, allxfer_len);
else {
memcpy(ptmpQbuffer, acb->rqbuffer + tail, cnt_to_end);
memcpy(ptmpQbuffer + cnt_to_end, acb->rqbuffer, allxfer_len - cnt_to_end);
}
acb->rqbuf_getIndex = (acb->rqbuf_getIndex + allxfer_len) % ARCMSR_MAX_QBUFFER;
}
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
struct QBUFFER __iomem *prbuffer;
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
prbuffer = arcmsr_get_iop_rqbuffer(acb);
if (arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
}
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
return allxfer_len;
}
static ssize_t arcmsr_sysfs_iop_message_write(struct file *filp,
struct kobject *kobj,
struct bin_attribute *bin,
char *buf, loff_t off,
size_t count)
{
struct device *dev = container_of(kobj,struct device,kobj);
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
int32_t user_len, cnt2end;
uint8_t *pQbuffer, *ptmpuserbuffer;
unsigned long flags;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (count > ARCMSR_API_DATA_BUFLEN)
return -EINVAL;
/* do message unit write. */
ptmpuserbuffer = (uint8_t *)buf;
user_len = (int32_t)count;
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
if (acb->wqbuf_putIndex != acb->wqbuf_getIndex) {
arcmsr_write_ioctldata2iop(acb);
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
return 0; /*need retry*/
} else {
pQbuffer = &acb->wqbuffer[acb->wqbuf_putIndex];
cnt2end = ARCMSR_MAX_QBUFFER - acb->wqbuf_putIndex;
if (user_len > cnt2end) {
memcpy(pQbuffer, ptmpuserbuffer, cnt2end);
ptmpuserbuffer += cnt2end;
user_len -= cnt2end;
acb->wqbuf_putIndex = 0;
pQbuffer = acb->wqbuffer;
}
memcpy(pQbuffer, ptmpuserbuffer, user_len);
acb->wqbuf_putIndex += user_len;
acb->wqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
acb->acb_flags &=
~ACB_F_MESSAGE_WQBUFFER_CLEARED;
arcmsr_write_ioctldata2iop(acb);
}
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
return count;
}
}
static ssize_t arcmsr_sysfs_iop_message_clear(struct file *filp,
struct kobject *kobj,
struct bin_attribute *bin,
char *buf, loff_t off,
size_t count)
{
struct device *dev = container_of(kobj,struct device,kobj);
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
uint8_t *pQbuffer;
unsigned long flags;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
arcmsr_clear_iop2drv_rqueue_buffer(acb);
acb->acb_flags |=
(ACB_F_MESSAGE_WQBUFFER_CLEARED
| ACB_F_MESSAGE_RQBUFFER_CLEARED
| ACB_F_MESSAGE_WQBUFFER_READED);
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
acb->rqbuf_getIndex = 0;
acb->rqbuf_putIndex = 0;
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
acb->wqbuf_getIndex = 0;
acb->wqbuf_putIndex = 0;
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
pQbuffer = acb->rqbuffer;
memset(pQbuffer, 0, sizeof (struct QBUFFER));
pQbuffer = acb->wqbuffer;
memset(pQbuffer, 0, sizeof (struct QBUFFER));
return 1;
}
static const struct bin_attribute arcmsr_sysfs_message_read_attr = {
.attr = {
.name = "mu_read",
.mode = S_IRUSR ,
},
.size = ARCMSR_API_DATA_BUFLEN,
.read = arcmsr_sysfs_iop_message_read,
};
static const struct bin_attribute arcmsr_sysfs_message_write_attr = {
.attr = {
.name = "mu_write",
.mode = S_IWUSR,
},
.size = ARCMSR_API_DATA_BUFLEN,
.write = arcmsr_sysfs_iop_message_write,
};
static const struct bin_attribute arcmsr_sysfs_message_clear_attr = {
.attr = {
.name = "mu_clear",
.mode = S_IWUSR,
},
.size = 1,
.write = arcmsr_sysfs_iop_message_clear,
};
int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb)
{
struct Scsi_Host *host = acb->host;
int error;
error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
if (error) {
printk(KERN_ERR "arcmsr: alloc sysfs mu_read failed\n");
goto error_bin_file_message_read;
}
error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
if (error) {
printk(KERN_ERR "arcmsr: alloc sysfs mu_write failed\n");
goto error_bin_file_message_write;
}
error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_clear_attr);
if (error) {
printk(KERN_ERR "arcmsr: alloc sysfs mu_clear failed\n");
goto error_bin_file_message_clear;
}
return 0;
error_bin_file_message_clear:
sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
error_bin_file_message_write:
sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
error_bin_file_message_read:
return error;
}
void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb)
{
struct Scsi_Host *host = acb->host;
sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_clear_attr);
sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
}
static ssize_t
arcmsr_attr_host_driver_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE,
"%s\n",
ARCMSR_DRIVER_VERSION);
}
static ssize_t
arcmsr_attr_host_driver_posted_cmd(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%4d\n",
atomic_read(&acb->ccboutstandingcount));
}
static ssize_t
arcmsr_attr_host_driver_reset(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%4d\n",
acb->num_resets);
}
static ssize_t
arcmsr_attr_host_driver_abort(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%4d\n",
acb->num_aborts);
}
static ssize_t
arcmsr_attr_host_fw_model(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%s\n",
acb->firm_model);
}
static ssize_t
arcmsr_attr_host_fw_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%s\n",
acb->firm_version);
}
static ssize_t
arcmsr_attr_host_fw_request_len(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%4d\n",
acb->firm_request_len);
}
static ssize_t
arcmsr_attr_host_fw_numbers_queue(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%4d\n",
acb->firm_numbers_queue);
}
static ssize_t
arcmsr_attr_host_fw_sdram_size(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%4d\n",
acb->firm_sdram_size);
}
static ssize_t
arcmsr_attr_host_fw_hd_channels(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *host = class_to_shost(dev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
return snprintf(buf, PAGE_SIZE,
"%4d\n",
acb->firm_hd_channels);
}
static DEVICE_ATTR(host_driver_version, S_IRUGO, arcmsr_attr_host_driver_version, NULL);
static DEVICE_ATTR(host_driver_posted_cmd, S_IRUGO, arcmsr_attr_host_driver_posted_cmd, NULL);
static DEVICE_ATTR(host_driver_reset, S_IRUGO, arcmsr_attr_host_driver_reset, NULL);
static DEVICE_ATTR(host_driver_abort, S_IRUGO, arcmsr_attr_host_driver_abort, NULL);
static DEVICE_ATTR(host_fw_model, S_IRUGO, arcmsr_attr_host_fw_model, NULL);
static DEVICE_ATTR(host_fw_version, S_IRUGO, arcmsr_attr_host_fw_version, NULL);
static DEVICE_ATTR(host_fw_request_len, S_IRUGO, arcmsr_attr_host_fw_request_len, NULL);
static DEVICE_ATTR(host_fw_numbers_queue, S_IRUGO, arcmsr_attr_host_fw_numbers_queue, NULL);
static DEVICE_ATTR(host_fw_sdram_size, S_IRUGO, arcmsr_attr_host_fw_sdram_size, NULL);
static DEVICE_ATTR(host_fw_hd_channels, S_IRUGO, arcmsr_attr_host_fw_hd_channels, NULL);
static struct attribute *arcmsr_host_attrs[] = {
&dev_attr_host_driver_version.attr,
&dev_attr_host_driver_posted_cmd.attr,
&dev_attr_host_driver_reset.attr,
&dev_attr_host_driver_abort.attr,
&dev_attr_host_fw_model.attr,
&dev_attr_host_fw_version.attr,
&dev_attr_host_fw_request_len.attr,
&dev_attr_host_fw_numbers_queue.attr,
&dev_attr_host_fw_sdram_size.attr,
&dev_attr_host_fw_hd_channels.attr,
NULL,
};
static const struct attribute_group arcmsr_host_attr_group = {
.attrs = arcmsr_host_attrs,
};
const struct attribute_group *arcmsr_host_groups[] = {
&arcmsr_host_attr_group,
NULL
};
|
linux-master
|
drivers/scsi/arcmsr/arcmsr_attr.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Marvell 88SE94xx hardware specific
*
* Copyright 2007 Red Hat, Inc.
* Copyright 2008 Marvell. <[email protected]>
* Copyright 2009-2011 Marvell. <[email protected]>
*/
#include "mv_sas.h"
#include "mv_94xx.h"
#include "mv_chips.h"
static void mvs_94xx_detect_porttype(struct mvs_info *mvi, int i)
{
u32 reg;
struct mvs_phy *phy = &mvi->phy[i];
u32 phy_status;
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE3);
reg = mvs_read_port_vsr_data(mvi, i);
phy_status = ((reg & 0x3f0000) >> 16) & 0xff;
phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
switch (phy_status) {
case 0x10:
phy->phy_type |= PORT_TYPE_SAS;
break;
case 0x1d:
default:
phy->phy_type |= PORT_TYPE_SATA;
break;
}
}
static void set_phy_tuning(struct mvs_info *mvi, int phy_id,
struct phy_tuning phy_tuning)
{
u32 tmp, setting_0 = 0, setting_1 = 0;
u8 i;
/* Remap information for B0 chip:
*
* R0Ch -> R118h[15:0] (Adapted DFE F3 - F5 coefficient)
* R0Dh -> R118h[31:16] (Generation 1 Setting 0)
* R0Eh -> R11Ch[15:0] (Generation 1 Setting 1)
* R0Fh -> R11Ch[31:16] (Generation 2 Setting 0)
* R10h -> R120h[15:0] (Generation 2 Setting 1)
* R11h -> R120h[31:16] (Generation 3 Setting 0)
* R12h -> R124h[15:0] (Generation 3 Setting 1)
* R13h -> R124h[31:16] (Generation 4 Setting 0 (Reserved))
*/
/* A0 has a different set of registers */
if (mvi->pdev->revision == VANIR_A0_REV)
return;
for (i = 0; i < 3; i++) {
/* loop 3 times, set Gen 1, Gen 2, Gen 3 */
switch (i) {
case 0:
setting_0 = GENERATION_1_SETTING;
setting_1 = GENERATION_1_2_SETTING;
break;
case 1:
setting_0 = GENERATION_1_2_SETTING;
setting_1 = GENERATION_2_3_SETTING;
break;
case 2:
setting_0 = GENERATION_2_3_SETTING;
setting_1 = GENERATION_3_4_SETTING;
break;
}
/* Set:
*
* Transmitter Emphasis Enable
* Transmitter Emphasis Amplitude
* Transmitter Amplitude
*/
mvs_write_port_vsr_addr(mvi, phy_id, setting_0);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~(0xFBE << 16);
tmp |= (((phy_tuning.trans_emp_en << 11) |
(phy_tuning.trans_emp_amp << 7) |
(phy_tuning.trans_amp << 1)) << 16);
mvs_write_port_vsr_data(mvi, phy_id, tmp);
/* Set Transmitter Amplitude Adjust */
mvs_write_port_vsr_addr(mvi, phy_id, setting_1);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~(0xC000);
tmp |= (phy_tuning.trans_amp_adj << 14);
mvs_write_port_vsr_data(mvi, phy_id, tmp);
}
}
static void set_phy_ffe_tuning(struct mvs_info *mvi, int phy_id,
struct ffe_control ffe)
{
u32 tmp;
/* Don't run this if A0/B0 */
if ((mvi->pdev->revision == VANIR_A0_REV)
|| (mvi->pdev->revision == VANIR_B0_REV))
return;
/* FFE Resistor and Capacitor */
/* R10Ch DFE Resolution Control/Squelch and FFE Setting
*
* FFE_FORCE [7]
* FFE_RES_SEL [6:4]
* FFE_CAP_SEL [3:0]
*/
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_FFE_CONTROL);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~0xFF;
/* Read from HBA_Info_Page */
tmp |= ((0x1 << 7) |
(ffe.ffe_rss_sel << 4) |
(ffe.ffe_cap_sel << 0));
mvs_write_port_vsr_data(mvi, phy_id, tmp);
/* R064h PHY Mode Register 1
*
* DFE_DIS 18
*/
mvs_write_port_vsr_addr(mvi, phy_id, VSR_REF_CLOCK_CRTL);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~0x40001;
/* Hard coding */
/* No defines in HBA_Info_Page */
tmp |= (0 << 18);
mvs_write_port_vsr_data(mvi, phy_id, tmp);
/* R110h DFE F0-F1 Coefficient Control/DFE Update Control
*
* DFE_UPDATE_EN [11:6]
* DFE_FX_FORCE [5:0]
*/
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_DFE_UPDATE_CRTL);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~0xFFF;
/* Hard coding */
/* No defines in HBA_Info_Page */
tmp |= ((0x3F << 6) | (0x0 << 0));
mvs_write_port_vsr_data(mvi, phy_id, tmp);
/* R1A0h Interface and Digital Reference Clock Control/Reserved_50h
*
* FFE_TRAIN_EN 3
*/
mvs_write_port_vsr_addr(mvi, phy_id, VSR_REF_CLOCK_CRTL);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~0x8;
/* Hard coding */
/* No defines in HBA_Info_Page */
tmp |= (0 << 3);
mvs_write_port_vsr_data(mvi, phy_id, tmp);
}
/*Notice: this function must be called when phy is disabled*/
static void set_phy_rate(struct mvs_info *mvi, int phy_id, u8 rate)
{
union reg_phy_cfg phy_cfg, phy_cfg_tmp;
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
phy_cfg_tmp.v = mvs_read_port_vsr_data(mvi, phy_id);
phy_cfg.v = 0;
phy_cfg.u.disable_phy = phy_cfg_tmp.u.disable_phy;
phy_cfg.u.sas_support = 1;
phy_cfg.u.sata_support = 1;
phy_cfg.u.sata_host_mode = 1;
switch (rate) {
case 0x0:
/* support 1.5 Gbps */
phy_cfg.u.speed_support = 1;
phy_cfg.u.snw_3_support = 0;
phy_cfg.u.tx_lnk_parity = 1;
phy_cfg.u.tx_spt_phs_lnk_rate = 0x30;
break;
case 0x1:
/* support 1.5, 3.0 Gbps */
phy_cfg.u.speed_support = 3;
phy_cfg.u.tx_spt_phs_lnk_rate = 0x3c;
phy_cfg.u.tx_lgcl_lnk_rate = 0x08;
break;
case 0x2:
default:
/* support 1.5, 3.0, 6.0 Gbps */
phy_cfg.u.speed_support = 7;
phy_cfg.u.snw_3_support = 1;
phy_cfg.u.tx_lnk_parity = 1;
phy_cfg.u.tx_spt_phs_lnk_rate = 0x3f;
phy_cfg.u.tx_lgcl_lnk_rate = 0x09;
break;
}
mvs_write_port_vsr_data(mvi, phy_id, phy_cfg.v);
}
static void mvs_94xx_config_reg_from_hba(struct mvs_info *mvi, int phy_id)
{
u32 temp;
temp = (u32)(*(u32 *)&mvi->hba_info_param.phy_tuning[phy_id]);
if (temp == 0xFFFFFFFFL) {
mvi->hba_info_param.phy_tuning[phy_id].trans_emp_amp = 0x6;
mvi->hba_info_param.phy_tuning[phy_id].trans_amp = 0x1A;
mvi->hba_info_param.phy_tuning[phy_id].trans_amp_adj = 0x3;
}
temp = (u8)(*(u8 *)&mvi->hba_info_param.ffe_ctl[phy_id]);
if (temp == 0xFFL) {
switch (mvi->pdev->revision) {
case VANIR_A0_REV:
case VANIR_B0_REV:
mvi->hba_info_param.ffe_ctl[phy_id].ffe_rss_sel = 0x7;
mvi->hba_info_param.ffe_ctl[phy_id].ffe_cap_sel = 0x7;
break;
case VANIR_C0_REV:
case VANIR_C1_REV:
case VANIR_C2_REV:
default:
mvi->hba_info_param.ffe_ctl[phy_id].ffe_rss_sel = 0x7;
mvi->hba_info_param.ffe_ctl[phy_id].ffe_cap_sel = 0xC;
break;
}
}
temp = (u8)(*(u8 *)&mvi->hba_info_param.phy_rate[phy_id]);
if (temp == 0xFFL)
/*set default phy_rate = 6Gbps*/
mvi->hba_info_param.phy_rate[phy_id] = 0x2;
set_phy_tuning(mvi, phy_id,
mvi->hba_info_param.phy_tuning[phy_id]);
set_phy_ffe_tuning(mvi, phy_id,
mvi->hba_info_param.ffe_ctl[phy_id]);
set_phy_rate(mvi, phy_id,
mvi->hba_info_param.phy_rate[phy_id]);
}
static void mvs_94xx_enable_xmt(struct mvs_info *mvi, int phy_id)
{
void __iomem *regs = mvi->regs;
u32 tmp;
tmp = mr32(MVS_PCS);
tmp |= 1 << (phy_id + PCS_EN_PORT_XMT_SHIFT2);
mw32(MVS_PCS, tmp);
}
static void mvs_94xx_phy_reset(struct mvs_info *mvi, u32 phy_id, int hard)
{
u32 tmp;
u32 delay = 5000;
if (hard == MVS_PHY_TUNE) {
mvs_write_port_cfg_addr(mvi, phy_id, PHYR_SATA_CTL);
tmp = mvs_read_port_cfg_data(mvi, phy_id);
mvs_write_port_cfg_data(mvi, phy_id, tmp|0x20000000);
mvs_write_port_cfg_data(mvi, phy_id, tmp|0x100000);
return;
}
tmp = mvs_read_port_irq_stat(mvi, phy_id);
tmp &= ~PHYEV_RDY_CH;
mvs_write_port_irq_stat(mvi, phy_id, tmp);
if (hard) {
tmp = mvs_read_phy_ctl(mvi, phy_id);
tmp |= PHY_RST_HARD;
mvs_write_phy_ctl(mvi, phy_id, tmp);
do {
tmp = mvs_read_phy_ctl(mvi, phy_id);
udelay(10);
delay--;
} while ((tmp & PHY_RST_HARD) && delay);
if (!delay)
mv_dprintk("phy hard reset failed.\n");
} else {
tmp = mvs_read_phy_ctl(mvi, phy_id);
tmp |= PHY_RST;
mvs_write_phy_ctl(mvi, phy_id, tmp);
}
}
static void mvs_94xx_phy_disable(struct mvs_info *mvi, u32 phy_id)
{
u32 tmp;
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
mvs_write_port_vsr_data(mvi, phy_id, tmp | 0x00800000);
}
static void mvs_94xx_phy_enable(struct mvs_info *mvi, u32 phy_id)
{
u32 tmp;
u8 revision = 0;
revision = mvi->pdev->revision;
if (revision == VANIR_A0_REV) {
mvs_write_port_vsr_addr(mvi, phy_id, CMD_HOST_RD_DATA);
mvs_write_port_vsr_data(mvi, phy_id, 0x8300ffc1);
}
if (revision == VANIR_B0_REV) {
mvs_write_port_vsr_addr(mvi, phy_id, CMD_APP_MEM_CTL);
mvs_write_port_vsr_data(mvi, phy_id, 0x08001006);
mvs_write_port_vsr_addr(mvi, phy_id, CMD_HOST_RD_DATA);
mvs_write_port_vsr_data(mvi, phy_id, 0x0000705f);
}
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp |= bit(0);
mvs_write_port_vsr_data(mvi, phy_id, tmp & 0xfd7fffff);
}
static void mvs_94xx_sgpio_init(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
u32 tmp;
tmp = mr32(MVS_HST_CHIP_CONFIG);
tmp |= 0x100;
mw32(MVS_HST_CHIP_CONFIG, tmp);
mw32(MVS_SGPIO_CTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
MVS_SGPIO_CTRL_SDOUT_AUTO << MVS_SGPIO_CTRL_SDOUT_SHIFT);
mw32(MVS_SGPIO_CFG1 + MVS_SGPIO_HOST_OFFSET * mvi->id,
8 << MVS_SGPIO_CFG1_LOWA_SHIFT |
8 << MVS_SGPIO_CFG1_HIA_SHIFT |
4 << MVS_SGPIO_CFG1_LOWB_SHIFT |
4 << MVS_SGPIO_CFG1_HIB_SHIFT |
2 << MVS_SGPIO_CFG1_MAXACTON_SHIFT |
1 << MVS_SGPIO_CFG1_FORCEACTOFF_SHIFT
);
mw32(MVS_SGPIO_CFG2 + MVS_SGPIO_HOST_OFFSET * mvi->id,
(300000 / 100) << MVS_SGPIO_CFG2_CLK_SHIFT | /* 100kHz clock */
66 << MVS_SGPIO_CFG2_BLINK_SHIFT /* (66 * 0,121 Hz?)*/
);
mw32(MVS_SGPIO_CFG0 + MVS_SGPIO_HOST_OFFSET * mvi->id,
MVS_SGPIO_CFG0_ENABLE |
MVS_SGPIO_CFG0_BLINKA |
MVS_SGPIO_CFG0_BLINKB |
/* 3*4 data bits / PDU */
(12 - 1) << MVS_SGPIO_CFG0_AUT_BITLEN_SHIFT
);
mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
DEFAULT_SGPIO_BITS);
mw32(MVS_SGPIO_DSRC + MVS_SGPIO_HOST_OFFSET * mvi->id,
((mvi->id * 4) + 3) << (8 * 3) |
((mvi->id * 4) + 2) << (8 * 2) |
((mvi->id * 4) + 1) << (8 * 1) |
((mvi->id * 4) + 0) << (8 * 0));
}
static int mvs_94xx_init(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
int i;
u32 tmp, cctl;
u8 revision;
revision = mvi->pdev->revision;
mvs_show_pcie_usage(mvi);
if (mvi->flags & MVF_FLAG_SOC) {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_PHY_DSBL;
mw32(MVS_PHY_CTL, tmp);
}
/* Init Chip */
/* make sure RST is set; HBA_RST /should/ have done that for us */
cctl = mr32(MVS_CTL) & 0xFFFF;
if (cctl & CCTL_RST)
cctl &= ~CCTL_RST;
else
mw32_f(MVS_CTL, cctl | CCTL_RST);
if (mvi->flags & MVF_FLAG_SOC) {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_COM_ON;
tmp &= ~PCTL_PHY_DSBL;
tmp |= PCTL_LINK_RST;
mw32(MVS_PHY_CTL, tmp);
msleep(100);
tmp &= ~PCTL_LINK_RST;
mw32(MVS_PHY_CTL, tmp);
msleep(100);
}
/* disable Multiplexing, enable phy implemented */
mw32(MVS_PORTS_IMP, 0xFF);
if (revision == VANIR_A0_REV) {
mw32(MVS_PA_VSR_ADDR, CMD_CMWK_OOB_DET);
mw32(MVS_PA_VSR_PORT, 0x00018080);
}
mw32(MVS_PA_VSR_ADDR, VSR_PHY_MODE2);
if (revision == VANIR_A0_REV || revision == VANIR_B0_REV)
/* set 6G/3G/1.5G, multiplexing, without SSC */
mw32(MVS_PA_VSR_PORT, 0x0084d4fe);
else
/* set 6G/3G/1.5G, multiplexing, with and without SSC */
mw32(MVS_PA_VSR_PORT, 0x0084fffe);
if (revision == VANIR_B0_REV) {
mw32(MVS_PA_VSR_ADDR, CMD_APP_MEM_CTL);
mw32(MVS_PA_VSR_PORT, 0x08001006);
mw32(MVS_PA_VSR_ADDR, CMD_HOST_RD_DATA);
mw32(MVS_PA_VSR_PORT, 0x0000705f);
}
/* reset control */
mw32(MVS_PCS, 0); /* MVS_PCS */
mw32(MVS_STP_REG_SET_0, 0);
mw32(MVS_STP_REG_SET_1, 0);
/* init phys */
mvs_phy_hacks(mvi);
/* disable non data frame retry */
tmp = mvs_cr32(mvi, CMD_SAS_CTL1);
if ((revision == VANIR_A0_REV) ||
(revision == VANIR_B0_REV) ||
(revision == VANIR_C0_REV)) {
tmp &= ~0xffff;
tmp |= 0x007f;
mvs_cw32(mvi, CMD_SAS_CTL1, tmp);
}
/* set LED blink when IO*/
mw32(MVS_PA_VSR_ADDR, VSR_PHY_ACT_LED);
tmp = mr32(MVS_PA_VSR_PORT);
tmp &= 0xFFFF00FF;
tmp |= 0x00003300;
mw32(MVS_PA_VSR_PORT, tmp);
mw32(MVS_CMD_LIST_LO, mvi->slot_dma);
mw32(MVS_CMD_LIST_HI, (mvi->slot_dma >> 16) >> 16);
mw32(MVS_RX_FIS_LO, mvi->rx_fis_dma);
mw32(MVS_RX_FIS_HI, (mvi->rx_fis_dma >> 16) >> 16);
mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ);
mw32(MVS_TX_LO, mvi->tx_dma);
mw32(MVS_TX_HI, (mvi->tx_dma >> 16) >> 16);
mw32(MVS_RX_CFG, MVS_RX_RING_SZ);
mw32(MVS_RX_LO, mvi->rx_dma);
mw32(MVS_RX_HI, (mvi->rx_dma >> 16) >> 16);
for (i = 0; i < mvi->chip->n_phy; i++) {
mvs_94xx_phy_disable(mvi, i);
/* set phy local SAS address */
mvs_set_sas_addr(mvi, i, CONFIG_ID_FRAME3, CONFIG_ID_FRAME4,
cpu_to_le64(mvi->phy[i].dev_sas_addr));
mvs_94xx_enable_xmt(mvi, i);
mvs_94xx_config_reg_from_hba(mvi, i);
mvs_94xx_phy_enable(mvi, i);
mvs_94xx_phy_reset(mvi, i, PHY_RST_HARD);
msleep(500);
mvs_94xx_detect_porttype(mvi, i);
}
if (mvi->flags & MVF_FLAG_SOC) {
/* set select registers */
writel(0x0E008000, regs + 0x000);
writel(0x59000008, regs + 0x004);
writel(0x20, regs + 0x008);
writel(0x20, regs + 0x00c);
writel(0x20, regs + 0x010);
writel(0x20, regs + 0x014);
writel(0x20, regs + 0x018);
writel(0x20, regs + 0x01c);
}
for (i = 0; i < mvi->chip->n_phy; i++) {
/* clear phy int status */
tmp = mvs_read_port_irq_stat(mvi, i);
tmp &= ~PHYEV_SIG_FIS;
mvs_write_port_irq_stat(mvi, i, tmp);
/* set phy int mask */
tmp = PHYEV_RDY_CH | PHYEV_BROAD_CH |
PHYEV_ID_DONE | PHYEV_DCDR_ERR | PHYEV_CRC_ERR ;
mvs_write_port_irq_mask(mvi, i, tmp);
msleep(100);
mvs_update_phyinfo(mvi, i, 1);
}
/* little endian for open address and command table, etc. */
cctl = mr32(MVS_CTL);
cctl |= CCTL_ENDIAN_CMD;
cctl &= ~CCTL_ENDIAN_OPEN;
cctl |= CCTL_ENDIAN_RSP;
mw32_f(MVS_CTL, cctl);
/* reset CMD queue */
tmp = mr32(MVS_PCS);
tmp |= PCS_CMD_RST;
tmp &= ~PCS_SELF_CLEAR;
mw32(MVS_PCS, tmp);
/*
* the max count is 0x1ff, while our max slot is 0x200,
* it will make count 0.
*/
tmp = 0;
if (MVS_CHIP_SLOT_SZ > 0x1ff)
mw32(MVS_INT_COAL, 0x1ff | COAL_EN);
else
mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ | COAL_EN);
/* default interrupt coalescing time is 128us */
tmp = 0x10000 | interrupt_coalescing;
mw32(MVS_INT_COAL_TMOUT, tmp);
/* ladies and gentlemen, start your engines */
mw32(MVS_TX_CFG, 0);
mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ | TX_EN);
mw32(MVS_RX_CFG, MVS_RX_RING_SZ | RX_EN);
/* enable CMD/CMPL_Q/RESP mode */
mw32(MVS_PCS, PCS_SATA_RETRY_2 | PCS_FIS_RX_EN |
PCS_CMD_EN | PCS_CMD_STOP_ERR);
/* enable completion queue interrupt */
tmp = (CINT_PORT_MASK | CINT_DONE | CINT_MEM | CINT_SRS | CINT_CI_STOP |
CINT_DMA_PCIE | CINT_NON_SPEC_NCQ_ERROR);
tmp |= CINT_PHY_MASK;
mw32(MVS_INT_MASK, tmp);
tmp = mvs_cr32(mvi, CMD_LINK_TIMER);
tmp |= 0xFFFF0000;
mvs_cw32(mvi, CMD_LINK_TIMER, tmp);
/* tune STP performance */
tmp = 0x003F003F;
mvs_cw32(mvi, CMD_PL_TIMER, tmp);
/* This can improve expander large block size seq write performance */
tmp = mvs_cr32(mvi, CMD_PORT_LAYER_TIMER1);
tmp |= 0xFFFF007F;
mvs_cw32(mvi, CMD_PORT_LAYER_TIMER1, tmp);
/* change the connection open-close behavior (bit 9)
* set bit8 to 1 for performance tuning */
tmp = mvs_cr32(mvi, CMD_SL_MODE0);
tmp |= 0x00000300;
/* set bit0 to 0 to enable retry for no_dest reject case */
tmp &= 0xFFFFFFFE;
mvs_cw32(mvi, CMD_SL_MODE0, tmp);
/* Enable SRS interrupt */
mw32(MVS_INT_MASK_SRS_0, 0xFFFF);
mvs_94xx_sgpio_init(mvi);
return 0;
}
static int mvs_94xx_ioremap(struct mvs_info *mvi)
{
if (!mvs_ioremap(mvi, 2, -1)) {
mvi->regs_ex = mvi->regs + 0x10200;
mvi->regs += 0x20000;
if (mvi->id == 1)
mvi->regs += 0x4000;
return 0;
}
return -1;
}
static void mvs_94xx_iounmap(struct mvs_info *mvi)
{
if (mvi->regs) {
mvi->regs -= 0x20000;
if (mvi->id == 1)
mvi->regs -= 0x4000;
mvs_iounmap(mvi->regs);
}
}
static void mvs_94xx_interrupt_enable(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex;
u32 tmp;
tmp = mr32(MVS_GBL_CTL);
tmp |= (MVS_IRQ_SAS_A | MVS_IRQ_SAS_B);
mw32(MVS_GBL_INT_STAT, tmp);
writel(tmp, regs + 0x0C);
writel(tmp, regs + 0x10);
writel(tmp, regs + 0x14);
writel(tmp, regs + 0x18);
mw32(MVS_GBL_CTL, tmp);
}
static void mvs_94xx_interrupt_disable(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex;
u32 tmp;
tmp = mr32(MVS_GBL_CTL);
tmp &= ~(MVS_IRQ_SAS_A | MVS_IRQ_SAS_B);
mw32(MVS_GBL_INT_STAT, tmp);
writel(tmp, regs + 0x0C);
writel(tmp, regs + 0x10);
writel(tmp, regs + 0x14);
writel(tmp, regs + 0x18);
mw32(MVS_GBL_CTL, tmp);
}
static u32 mvs_94xx_isr_status(struct mvs_info *mvi, int irq)
{
void __iomem *regs = mvi->regs_ex;
u32 stat = 0;
if (!(mvi->flags & MVF_FLAG_SOC)) {
stat = mr32(MVS_GBL_INT_STAT);
if (!(stat & (MVS_IRQ_SAS_A | MVS_IRQ_SAS_B)))
return 0;
}
return stat;
}
static irqreturn_t mvs_94xx_isr(struct mvs_info *mvi, int irq, u32 stat)
{
void __iomem *regs = mvi->regs;
if (((stat & MVS_IRQ_SAS_A) && mvi->id == 0) ||
((stat & MVS_IRQ_SAS_B) && mvi->id == 1)) {
mw32_f(MVS_INT_STAT, CINT_DONE);
spin_lock(&mvi->lock);
mvs_int_full(mvi);
spin_unlock(&mvi->lock);
}
return IRQ_HANDLED;
}
static void mvs_94xx_command_active(struct mvs_info *mvi, u32 slot_idx)
{
u32 tmp;
tmp = mvs_cr32(mvi, MVS_COMMAND_ACTIVE+(slot_idx >> 3));
if (tmp & 1 << (slot_idx % 32)) {
mv_printk("command active %08X, slot [%x].\n", tmp, slot_idx);
mvs_cw32(mvi, MVS_COMMAND_ACTIVE + (slot_idx >> 3),
1 << (slot_idx % 32));
do {
tmp = mvs_cr32(mvi,
MVS_COMMAND_ACTIVE + (slot_idx >> 3));
} while (tmp & 1 << (slot_idx % 32));
}
}
static void
mvs_94xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (clear_all) {
tmp = mr32(MVS_INT_STAT_SRS_0);
if (tmp) {
mv_dprintk("check SRS 0 %08X.\n", tmp);
mw32(MVS_INT_STAT_SRS_0, tmp);
}
tmp = mr32(MVS_INT_STAT_SRS_1);
if (tmp) {
mv_dprintk("check SRS 1 %08X.\n", tmp);
mw32(MVS_INT_STAT_SRS_1, tmp);
}
} else {
if (reg_set > 31)
tmp = mr32(MVS_INT_STAT_SRS_1);
else
tmp = mr32(MVS_INT_STAT_SRS_0);
if (tmp & (1 << (reg_set % 32))) {
mv_dprintk("register set 0x%x was stopped.\n", reg_set);
if (reg_set > 31)
mw32(MVS_INT_STAT_SRS_1, 1 << (reg_set % 32));
else
mw32(MVS_INT_STAT_SRS_0, 1 << (reg_set % 32));
}
}
}
static void mvs_94xx_issue_stop(struct mvs_info *mvi, enum mvs_port_type type,
u32 tfs)
{
void __iomem *regs = mvi->regs;
u32 tmp;
mvs_94xx_clear_srs_irq(mvi, 0, 1);
tmp = mr32(MVS_INT_STAT);
mw32(MVS_INT_STAT, tmp | CINT_CI_STOP);
tmp = mr32(MVS_PCS) | 0xFF00;
mw32(MVS_PCS, tmp);
}
static void mvs_94xx_non_spec_ncq_error(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
u32 err_0, err_1;
u8 i;
struct mvs_device *device;
err_0 = mr32(MVS_NON_NCQ_ERR_0);
err_1 = mr32(MVS_NON_NCQ_ERR_1);
mv_dprintk("non specific ncq error err_0:%x,err_1:%x.\n",
err_0, err_1);
for (i = 0; i < 32; i++) {
if (err_0 & bit(i)) {
device = mvs_find_dev_by_reg_set(mvi, i);
if (device)
mvs_release_task(mvi, device->sas_device);
}
if (err_1 & bit(i)) {
device = mvs_find_dev_by_reg_set(mvi, i+32);
if (device)
mvs_release_task(mvi, device->sas_device);
}
}
mw32(MVS_NON_NCQ_ERR_0, err_0);
mw32(MVS_NON_NCQ_ERR_1, err_1);
}
static void mvs_94xx_free_reg_set(struct mvs_info *mvi, u8 *tfs)
{
void __iomem *regs = mvi->regs;
u8 reg_set = *tfs;
if (*tfs == MVS_ID_NOT_MAPPED)
return;
mvi->sata_reg_set &= ~bit(reg_set);
if (reg_set < 32)
w_reg_set_enable(reg_set, (u32)mvi->sata_reg_set);
else
w_reg_set_enable(reg_set, (u32)(mvi->sata_reg_set >> 32));
*tfs = MVS_ID_NOT_MAPPED;
return;
}
static u8 mvs_94xx_assign_reg_set(struct mvs_info *mvi, u8 *tfs)
{
int i;
void __iomem *regs = mvi->regs;
if (*tfs != MVS_ID_NOT_MAPPED)
return 0;
i = mv_ffc64(mvi->sata_reg_set);
if (i >= 32) {
mvi->sata_reg_set |= bit(i);
w_reg_set_enable(i, (u32)(mvi->sata_reg_set >> 32));
*tfs = i;
return 0;
} else if (i >= 0) {
mvi->sata_reg_set |= bit(i);
w_reg_set_enable(i, (u32)mvi->sata_reg_set);
*tfs = i;
return 0;
}
return MVS_ID_NOT_MAPPED;
}
static void mvs_94xx_make_prd(struct scatterlist *scatter, int nr, void *prd)
{
int i;
struct scatterlist *sg;
struct mvs_prd *buf_prd = prd;
struct mvs_prd_imt im_len;
*(u32 *)&im_len = 0;
for_each_sg(scatter, sg, nr, i) {
buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
im_len.len = sg_dma_len(sg);
buf_prd->im_len = cpu_to_le32(*(u32 *)&im_len);
buf_prd++;
}
}
static int mvs_94xx_oob_done(struct mvs_info *mvi, int i)
{
u32 phy_st;
phy_st = mvs_read_phy_ctl(mvi, i);
if (phy_st & PHY_READY_MASK)
return 1;
return 0;
}
static void mvs_94xx_get_dev_identify_frame(struct mvs_info *mvi, int port_id,
struct sas_identify_frame *id)
{
int i;
u32 id_frame[7];
for (i = 0; i < 7; i++) {
mvs_write_port_cfg_addr(mvi, port_id,
CONFIG_ID_FRAME0 + i * 4);
id_frame[i] = cpu_to_le32(mvs_read_port_cfg_data(mvi, port_id));
}
memcpy(id, id_frame, 28);
}
static void mvs_94xx_get_att_identify_frame(struct mvs_info *mvi, int port_id,
struct sas_identify_frame *id)
{
int i;
u32 id_frame[7];
for (i = 0; i < 7; i++) {
mvs_write_port_cfg_addr(mvi, port_id,
CONFIG_ATT_ID_FRAME0 + i * 4);
id_frame[i] = cpu_to_le32(mvs_read_port_cfg_data(mvi, port_id));
mv_dprintk("94xx phy %d atta frame %d %x.\n",
port_id + mvi->id * mvi->chip->n_phy, i, id_frame[i]);
}
memcpy(id, id_frame, 28);
}
static u32 mvs_94xx_make_dev_info(struct sas_identify_frame *id)
{
u32 att_dev_info = 0;
att_dev_info |= id->dev_type;
if (id->stp_iport)
att_dev_info |= PORT_DEV_STP_INIT;
if (id->smp_iport)
att_dev_info |= PORT_DEV_SMP_INIT;
if (id->ssp_iport)
att_dev_info |= PORT_DEV_SSP_INIT;
if (id->stp_tport)
att_dev_info |= PORT_DEV_STP_TRGT;
if (id->smp_tport)
att_dev_info |= PORT_DEV_SMP_TRGT;
if (id->ssp_tport)
att_dev_info |= PORT_DEV_SSP_TRGT;
att_dev_info |= (u32)id->phy_id<<24;
return att_dev_info;
}
static u32 mvs_94xx_make_att_info(struct sas_identify_frame *id)
{
return mvs_94xx_make_dev_info(id);
}
static void mvs_94xx_fix_phy_info(struct mvs_info *mvi, int i,
struct sas_identify_frame *id)
{
struct mvs_phy *phy = &mvi->phy[i];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
mv_dprintk("get all reg link rate is 0x%x\n", phy->phy_status);
sas_phy->linkrate =
(phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
sas_phy->linkrate += 0x8;
mv_dprintk("get link rate is %d\n", sas_phy->linkrate);
phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
mvs_94xx_get_dev_identify_frame(mvi, i, id);
phy->dev_info = mvs_94xx_make_dev_info(id);
if (phy->phy_type & PORT_TYPE_SAS) {
mvs_94xx_get_att_identify_frame(mvi, i, id);
phy->att_dev_info = mvs_94xx_make_att_info(id);
phy->att_dev_sas_addr = *(u64 *)id->sas_addr;
} else {
phy->att_dev_info = PORT_DEV_STP_TRGT | 1;
}
/* enable spin up bit */
mvs_write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
mvs_write_port_cfg_data(mvi, i, 0x04);
}
static void mvs_94xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
struct sas_phy_linkrates *rates)
{
u32 lrmax = 0;
u32 tmp;
tmp = mvs_read_phy_ctl(mvi, phy_id);
lrmax = (rates->maximum_linkrate - SAS_LINK_RATE_1_5_GBPS) << 12;
if (lrmax) {
tmp &= ~(0x3 << 12);
tmp |= lrmax;
}
mvs_write_phy_ctl(mvi, phy_id, tmp);
mvs_94xx_phy_reset(mvi, phy_id, PHY_RST_HARD);
}
static void mvs_94xx_clear_active_cmds(struct mvs_info *mvi)
{
u32 tmp;
void __iomem *regs = mvi->regs;
tmp = mr32(MVS_STP_REG_SET_0);
mw32(MVS_STP_REG_SET_0, 0);
mw32(MVS_STP_REG_SET_0, tmp);
tmp = mr32(MVS_STP_REG_SET_1);
mw32(MVS_STP_REG_SET_1, 0);
mw32(MVS_STP_REG_SET_1, tmp);
}
static u32 mvs_94xx_spi_read_data(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
return mr32(SPI_RD_DATA_REG_94XX);
}
static void mvs_94xx_spi_write_data(struct mvs_info *mvi, u32 data)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
mw32(SPI_RD_DATA_REG_94XX, data);
}
static int mvs_94xx_spi_buildcmd(struct mvs_info *mvi,
u32 *dwCmd,
u8 cmd,
u8 read,
u8 length,
u32 addr
)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
u32 dwTmp;
dwTmp = ((u32)cmd << 8) | ((u32)length << 4);
if (read)
dwTmp |= SPI_CTRL_READ_94XX;
if (addr != MV_MAX_U32) {
mw32(SPI_ADDR_REG_94XX, (addr & 0x0003FFFFL));
dwTmp |= SPI_ADDR_VLD_94XX;
}
*dwCmd = dwTmp;
return 0;
}
static int mvs_94xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
mw32(SPI_CTRL_REG_94XX, cmd | SPI_CTRL_SpiStart_94XX);
return 0;
}
static int mvs_94xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
u32 i, dwTmp;
for (i = 0; i < timeout; i++) {
dwTmp = mr32(SPI_CTRL_REG_94XX);
if (!(dwTmp & SPI_CTRL_SpiStart_94XX))
return 0;
msleep(10);
}
return -1;
}
static void mvs_94xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
int buf_len, int from, void *prd)
{
int i;
struct mvs_prd *buf_prd = prd;
dma_addr_t buf_dma;
struct mvs_prd_imt im_len;
*(u32 *)&im_len = 0;
buf_prd += from;
#define PRD_CHAINED_ENTRY 0x01
if ((mvi->pdev->revision == VANIR_A0_REV) ||
(mvi->pdev->revision == VANIR_B0_REV))
buf_dma = (phy_mask <= 0x08) ?
mvi->bulk_buffer_dma : mvi->bulk_buffer_dma1;
else
return;
for (i = from; i < MAX_SG_ENTRY; i++, ++buf_prd) {
if (i == MAX_SG_ENTRY - 1) {
buf_prd->addr = cpu_to_le64(virt_to_phys(buf_prd - 1));
im_len.len = 2;
im_len.misc_ctl = PRD_CHAINED_ENTRY;
} else {
buf_prd->addr = cpu_to_le64(buf_dma);
im_len.len = buf_len;
}
buf_prd->im_len = cpu_to_le32(*(u32 *)&im_len);
}
}
static void mvs_94xx_tune_interrupt(struct mvs_info *mvi, u32 time)
{
void __iomem *regs = mvi->regs;
u32 tmp = 0;
/*
* the max count is 0x1ff, while our max slot is 0x200,
* it will make count 0.
*/
if (time == 0) {
mw32(MVS_INT_COAL, 0);
mw32(MVS_INT_COAL_TMOUT, 0x10000);
} else {
if (MVS_CHIP_SLOT_SZ > 0x1ff)
mw32(MVS_INT_COAL, 0x1ff|COAL_EN);
else
mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ|COAL_EN);
tmp = 0x10000 | time;
mw32(MVS_INT_COAL_TMOUT, tmp);
}
}
static int mvs_94xx_gpio_write(struct mvs_prv_info *mvs_prv,
u8 reg_type, u8 reg_index,
u8 reg_count, u8 *write_data)
{
int i;
switch (reg_type) {
case SAS_GPIO_REG_TX_GP:
if (reg_index == 0)
return -EINVAL;
if (reg_count > 1)
return -EINVAL;
if (reg_count == 0)
return 0;
/* maximum supported bits = hosts * 4 drives * 3 bits */
for (i = 0; i < mvs_prv->n_host * 4 * 3; i++) {
/* select host */
struct mvs_info *mvi = mvs_prv->mvi[i/(4*3)];
void __iomem *regs = mvi->regs_ex - 0x10200;
int drive = (i/3) & (4-1); /* drive number on host */
int driveshift = drive * 8; /* bit offset of drive */
u32 block = ioread32be(regs + MVS_SGPIO_DCTRL +
MVS_SGPIO_HOST_OFFSET * mvi->id);
/*
* if bit is set then create a mask with the first
* bit of the drive set in the mask ...
*/
u32 bit = get_unaligned_be32(write_data) & (1 << i) ?
1 << driveshift : 0;
/*
* ... and then shift it to the right position based
* on the led type (activity/id/fail)
*/
switch (i%3) {
case 0: /* activity */
block &= ~((0x7 << MVS_SGPIO_DCTRL_ACT_SHIFT)
<< driveshift);
/* hardwire activity bit to SOF */
block |= LED_BLINKA_SOF << (
MVS_SGPIO_DCTRL_ACT_SHIFT +
driveshift);
break;
case 1: /* id */
block &= ~((0x3 << MVS_SGPIO_DCTRL_LOC_SHIFT)
<< driveshift);
block |= bit << MVS_SGPIO_DCTRL_LOC_SHIFT;
break;
case 2: /* fail */
block &= ~((0x7 << MVS_SGPIO_DCTRL_ERR_SHIFT)
<< driveshift);
block |= bit << MVS_SGPIO_DCTRL_ERR_SHIFT;
break;
}
iowrite32be(block,
regs + MVS_SGPIO_DCTRL +
MVS_SGPIO_HOST_OFFSET * mvi->id);
}
return reg_count;
case SAS_GPIO_REG_TX:
if (reg_index + reg_count > mvs_prv->n_host)
return -EINVAL;
for (i = 0; i < reg_count; i++) {
struct mvs_info *mvi = mvs_prv->mvi[i+reg_index];
void __iomem *regs = mvi->regs_ex - 0x10200;
mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
((u32 *) write_data)[i]);
}
return reg_count;
}
return -ENOSYS;
}
const struct mvs_dispatch mvs_94xx_dispatch = {
"mv94xx",
mvs_94xx_init,
NULL,
mvs_94xx_ioremap,
mvs_94xx_iounmap,
mvs_94xx_isr,
mvs_94xx_isr_status,
mvs_94xx_interrupt_enable,
mvs_94xx_interrupt_disable,
mvs_read_phy_ctl,
mvs_write_phy_ctl,
mvs_read_port_cfg_data,
mvs_write_port_cfg_data,
mvs_write_port_cfg_addr,
mvs_read_port_vsr_data,
mvs_write_port_vsr_data,
mvs_write_port_vsr_addr,
mvs_read_port_irq_stat,
mvs_write_port_irq_stat,
mvs_read_port_irq_mask,
mvs_write_port_irq_mask,
mvs_94xx_command_active,
mvs_94xx_clear_srs_irq,
mvs_94xx_issue_stop,
mvs_start_delivery,
mvs_rx_update,
mvs_int_full,
mvs_94xx_assign_reg_set,
mvs_94xx_free_reg_set,
mvs_get_prd_size,
mvs_get_prd_count,
mvs_94xx_make_prd,
mvs_94xx_detect_porttype,
mvs_94xx_oob_done,
mvs_94xx_fix_phy_info,
NULL,
mvs_94xx_phy_set_link_rate,
mvs_hw_max_link_rate,
mvs_94xx_phy_disable,
mvs_94xx_phy_enable,
mvs_94xx_phy_reset,
NULL,
mvs_94xx_clear_active_cmds,
mvs_94xx_spi_read_data,
mvs_94xx_spi_write_data,
mvs_94xx_spi_buildcmd,
mvs_94xx_spi_issuecmd,
mvs_94xx_spi_waitdataready,
mvs_94xx_fix_dma,
mvs_94xx_tune_interrupt,
mvs_94xx_non_spec_ncq_error,
mvs_94xx_gpio_write,
};
|
linux-master
|
drivers/scsi/mvsas/mv_94xx.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Marvell 88SE64xx hardware specific
*
* Copyright 2007 Red Hat, Inc.
* Copyright 2008 Marvell. <[email protected]>
* Copyright 2009-2011 Marvell. <[email protected]>
*/
#include "mv_sas.h"
#include "mv_64xx.h"
#include "mv_chips.h"
static void mvs_64xx_detect_porttype(struct mvs_info *mvi, int i)
{
void __iomem *regs = mvi->regs;
u32 reg;
struct mvs_phy *phy = &mvi->phy[i];
reg = mr32(MVS_GBL_PORT_TYPE);
phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
if (reg & MODE_SAS_SATA & (1 << i))
phy->phy_type |= PORT_TYPE_SAS;
else
phy->phy_type |= PORT_TYPE_SATA;
}
static void mvs_64xx_enable_xmt(struct mvs_info *mvi, int phy_id)
{
void __iomem *regs = mvi->regs;
u32 tmp;
tmp = mr32(MVS_PCS);
if (mvi->chip->n_phy <= MVS_SOC_PORTS)
tmp |= 1 << (phy_id + PCS_EN_PORT_XMT_SHIFT);
else
tmp |= 1 << (phy_id + PCS_EN_PORT_XMT_SHIFT2);
mw32(MVS_PCS, tmp);
}
static void mvs_64xx_phy_hacks(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
int i;
mvs_phy_hacks(mvi);
if (!(mvi->flags & MVF_FLAG_SOC)) {
for (i = 0; i < MVS_SOC_PORTS; i++) {
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE8);
mvs_write_port_vsr_data(mvi, i, 0x2F0);
}
} else {
/* disable auto port detection */
mw32(MVS_GBL_PORT_TYPE, 0);
for (i = 0; i < mvi->chip->n_phy; i++) {
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE7);
mvs_write_port_vsr_data(mvi, i, 0x90000000);
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE9);
mvs_write_port_vsr_data(mvi, i, 0x50f2);
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE11);
mvs_write_port_vsr_data(mvi, i, 0x0e);
}
}
}
static void mvs_64xx_stp_reset(struct mvs_info *mvi, u32 phy_id)
{
void __iomem *regs = mvi->regs;
u32 reg, tmp;
if (!(mvi->flags & MVF_FLAG_SOC)) {
if (phy_id < MVS_SOC_PORTS)
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL, ®);
else
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL2, ®);
} else
reg = mr32(MVS_PHY_CTL);
tmp = reg;
if (phy_id < MVS_SOC_PORTS)
tmp |= (1U << phy_id) << PCTL_LINK_OFFS;
else
tmp |= (1U << (phy_id - MVS_SOC_PORTS)) << PCTL_LINK_OFFS;
if (!(mvi->flags & MVF_FLAG_SOC)) {
if (phy_id < MVS_SOC_PORTS) {
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, tmp);
mdelay(10);
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, reg);
} else {
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, tmp);
mdelay(10);
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, reg);
}
} else {
mw32(MVS_PHY_CTL, tmp);
mdelay(10);
mw32(MVS_PHY_CTL, reg);
}
}
static void mvs_64xx_phy_reset(struct mvs_info *mvi, u32 phy_id, int hard)
{
u32 tmp;
tmp = mvs_read_port_irq_stat(mvi, phy_id);
tmp &= ~PHYEV_RDY_CH;
mvs_write_port_irq_stat(mvi, phy_id, tmp);
tmp = mvs_read_phy_ctl(mvi, phy_id);
if (hard == MVS_HARD_RESET)
tmp |= PHY_RST_HARD;
else if (hard == MVS_SOFT_RESET)
tmp |= PHY_RST;
mvs_write_phy_ctl(mvi, phy_id, tmp);
if (hard) {
do {
tmp = mvs_read_phy_ctl(mvi, phy_id);
} while (tmp & PHY_RST_HARD);
}
}
static void
mvs_64xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (clear_all) {
tmp = mr32(MVS_INT_STAT_SRS_0);
if (tmp) {
printk(KERN_DEBUG "check SRS 0 %08X.\n", tmp);
mw32(MVS_INT_STAT_SRS_0, tmp);
}
} else {
tmp = mr32(MVS_INT_STAT_SRS_0);
if (tmp & (1 << (reg_set % 32))) {
printk(KERN_DEBUG "register set 0x%x was stopped.\n",
reg_set);
mw32(MVS_INT_STAT_SRS_0, 1 << (reg_set % 32));
}
}
}
static int mvs_64xx_chip_reset(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
u32 tmp;
int i;
/* make sure interrupts are masked immediately (paranoia) */
mw32(MVS_GBL_CTL, 0);
tmp = mr32(MVS_GBL_CTL);
/* Reset Controller */
if (!(tmp & HBA_RST)) {
if (mvi->flags & MVF_PHY_PWR_FIX) {
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL, &tmp);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_PHY_DSBL;
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, tmp);
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL2, &tmp);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_PHY_DSBL;
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, tmp);
}
}
/* make sure interrupts are masked immediately (paranoia) */
mw32(MVS_GBL_CTL, 0);
tmp = mr32(MVS_GBL_CTL);
/* Reset Controller */
if (!(tmp & HBA_RST)) {
/* global reset, incl. COMRESET/H_RESET_N (self-clearing) */
mw32_f(MVS_GBL_CTL, HBA_RST);
}
/* wait for reset to finish; timeout is just a guess */
i = 1000;
while (i-- > 0) {
msleep(10);
if (!(mr32(MVS_GBL_CTL) & HBA_RST))
break;
}
if (mr32(MVS_GBL_CTL) & HBA_RST) {
dev_printk(KERN_ERR, mvi->dev, "HBA reset failed\n");
return -EBUSY;
}
return 0;
}
static void mvs_64xx_phy_disable(struct mvs_info *mvi, u32 phy_id)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (!(mvi->flags & MVF_FLAG_SOC)) {
u32 offs;
if (phy_id < 4)
offs = PCR_PHY_CTL;
else {
offs = PCR_PHY_CTL2;
phy_id -= 4;
}
pci_read_config_dword(mvi->pdev, offs, &tmp);
tmp |= 1U << (PCTL_PHY_DSBL_OFFS + phy_id);
pci_write_config_dword(mvi->pdev, offs, tmp);
} else {
tmp = mr32(MVS_PHY_CTL);
tmp |= 1U << (PCTL_PHY_DSBL_OFFS + phy_id);
mw32(MVS_PHY_CTL, tmp);
}
}
static void mvs_64xx_phy_enable(struct mvs_info *mvi, u32 phy_id)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (!(mvi->flags & MVF_FLAG_SOC)) {
u32 offs;
if (phy_id < 4)
offs = PCR_PHY_CTL;
else {
offs = PCR_PHY_CTL2;
phy_id -= 4;
}
pci_read_config_dword(mvi->pdev, offs, &tmp);
tmp &= ~(1U << (PCTL_PHY_DSBL_OFFS + phy_id));
pci_write_config_dword(mvi->pdev, offs, tmp);
} else {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~(1U << (PCTL_PHY_DSBL_OFFS + phy_id));
mw32(MVS_PHY_CTL, tmp);
}
}
static int mvs_64xx_init(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
int i;
u32 tmp, cctl;
if (mvi->pdev && mvi->pdev->revision == 0)
mvi->flags |= MVF_PHY_PWR_FIX;
if (!(mvi->flags & MVF_FLAG_SOC)) {
mvs_show_pcie_usage(mvi);
tmp = mvs_64xx_chip_reset(mvi);
if (tmp)
return tmp;
} else {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_PHY_DSBL;
mw32(MVS_PHY_CTL, tmp);
}
/* Init Chip */
/* make sure RST is set; HBA_RST /should/ have done that for us */
cctl = mr32(MVS_CTL) & 0xFFFF;
if (cctl & CCTL_RST)
cctl &= ~CCTL_RST;
else
mw32_f(MVS_CTL, cctl | CCTL_RST);
if (!(mvi->flags & MVF_FLAG_SOC)) {
/* write to device control _AND_ device status register */
pci_read_config_dword(mvi->pdev, PCR_DEV_CTRL, &tmp);
tmp &= ~PRD_REQ_MASK;
tmp |= PRD_REQ_SIZE;
pci_write_config_dword(mvi->pdev, PCR_DEV_CTRL, tmp);
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL, &tmp);
tmp &= ~PCTL_PWR_OFF;
tmp &= ~PCTL_PHY_DSBL;
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, tmp);
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL2, &tmp);
tmp &= PCTL_PWR_OFF;
tmp &= ~PCTL_PHY_DSBL;
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, tmp);
} else {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_COM_ON;
tmp &= ~PCTL_PHY_DSBL;
tmp |= PCTL_LINK_RST;
mw32(MVS_PHY_CTL, tmp);
msleep(100);
tmp &= ~PCTL_LINK_RST;
mw32(MVS_PHY_CTL, tmp);
msleep(100);
}
/* reset control */
mw32(MVS_PCS, 0); /* MVS_PCS */
/* init phys */
mvs_64xx_phy_hacks(mvi);
tmp = mvs_cr32(mvi, CMD_PHY_MODE_21);
tmp &= 0x0000ffff;
tmp |= 0x00fa0000;
mvs_cw32(mvi, CMD_PHY_MODE_21, tmp);
/* enable auto port detection */
mw32(MVS_GBL_PORT_TYPE, MODE_AUTO_DET_EN);
mw32(MVS_CMD_LIST_LO, mvi->slot_dma);
mw32(MVS_CMD_LIST_HI, (mvi->slot_dma >> 16) >> 16);
mw32(MVS_RX_FIS_LO, mvi->rx_fis_dma);
mw32(MVS_RX_FIS_HI, (mvi->rx_fis_dma >> 16) >> 16);
mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ);
mw32(MVS_TX_LO, mvi->tx_dma);
mw32(MVS_TX_HI, (mvi->tx_dma >> 16) >> 16);
mw32(MVS_RX_CFG, MVS_RX_RING_SZ);
mw32(MVS_RX_LO, mvi->rx_dma);
mw32(MVS_RX_HI, (mvi->rx_dma >> 16) >> 16);
for (i = 0; i < mvi->chip->n_phy; i++) {
/* set phy local SAS address */
/* should set little endian SAS address to 64xx chip */
mvs_set_sas_addr(mvi, i, PHYR_ADDR_LO, PHYR_ADDR_HI,
cpu_to_be64(mvi->phy[i].dev_sas_addr));
mvs_64xx_enable_xmt(mvi, i);
mvs_64xx_phy_reset(mvi, i, MVS_HARD_RESET);
msleep(500);
mvs_64xx_detect_porttype(mvi, i);
}
if (mvi->flags & MVF_FLAG_SOC) {
/* set select registers */
writel(0x0E008000, regs + 0x000);
writel(0x59000008, regs + 0x004);
writel(0x20, regs + 0x008);
writel(0x20, regs + 0x00c);
writel(0x20, regs + 0x010);
writel(0x20, regs + 0x014);
writel(0x20, regs + 0x018);
writel(0x20, regs + 0x01c);
}
for (i = 0; i < mvi->chip->n_phy; i++) {
/* clear phy int status */
tmp = mvs_read_port_irq_stat(mvi, i);
tmp &= ~PHYEV_SIG_FIS;
mvs_write_port_irq_stat(mvi, i, tmp);
/* set phy int mask */
tmp = PHYEV_RDY_CH | PHYEV_BROAD_CH | PHYEV_UNASSOC_FIS |
PHYEV_ID_DONE | PHYEV_DCDR_ERR | PHYEV_CRC_ERR |
PHYEV_DEC_ERR;
mvs_write_port_irq_mask(mvi, i, tmp);
msleep(100);
mvs_update_phyinfo(mvi, i, 1);
}
/* little endian for open address and command table, etc. */
cctl = mr32(MVS_CTL);
cctl |= CCTL_ENDIAN_CMD;
cctl |= CCTL_ENDIAN_DATA;
cctl &= ~CCTL_ENDIAN_OPEN;
cctl |= CCTL_ENDIAN_RSP;
mw32_f(MVS_CTL, cctl);
/* reset CMD queue */
tmp = mr32(MVS_PCS);
tmp |= PCS_CMD_RST;
tmp &= ~PCS_SELF_CLEAR;
mw32(MVS_PCS, tmp);
/*
* the max count is 0x1ff, while our max slot is 0x200,
* it will make count 0.
*/
tmp = 0;
if (MVS_CHIP_SLOT_SZ > 0x1ff)
mw32(MVS_INT_COAL, 0x1ff | COAL_EN);
else
mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ | COAL_EN);
tmp = 0x10000 | interrupt_coalescing;
mw32(MVS_INT_COAL_TMOUT, tmp);
/* ladies and gentlemen, start your engines */
mw32(MVS_TX_CFG, 0);
mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ | TX_EN);
mw32(MVS_RX_CFG, MVS_RX_RING_SZ | RX_EN);
/* enable CMD/CMPL_Q/RESP mode */
mw32(MVS_PCS, PCS_SATA_RETRY | PCS_FIS_RX_EN |
PCS_CMD_EN | PCS_CMD_STOP_ERR);
/* enable completion queue interrupt */
tmp = (CINT_PORT_MASK | CINT_DONE | CINT_MEM | CINT_SRS | CINT_CI_STOP |
CINT_DMA_PCIE);
mw32(MVS_INT_MASK, tmp);
/* Enable SRS interrupt */
mw32(MVS_INT_MASK_SRS_0, 0xFFFF);
return 0;
}
static int mvs_64xx_ioremap(struct mvs_info *mvi)
{
if (!mvs_ioremap(mvi, 4, 2))
return 0;
return -1;
}
static void mvs_64xx_iounmap(struct mvs_info *mvi)
{
mvs_iounmap(mvi->regs);
mvs_iounmap(mvi->regs_ex);
}
static void mvs_64xx_interrupt_enable(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
u32 tmp;
tmp = mr32(MVS_GBL_CTL);
mw32(MVS_GBL_CTL, tmp | INT_EN);
}
static void mvs_64xx_interrupt_disable(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
u32 tmp;
tmp = mr32(MVS_GBL_CTL);
mw32(MVS_GBL_CTL, tmp & ~INT_EN);
}
static u32 mvs_64xx_isr_status(struct mvs_info *mvi, int irq)
{
void __iomem *regs = mvi->regs;
u32 stat;
if (!(mvi->flags & MVF_FLAG_SOC)) {
stat = mr32(MVS_GBL_INT_STAT);
if (stat == 0 || stat == 0xffffffff)
return 0;
} else
stat = 1;
return stat;
}
static irqreturn_t mvs_64xx_isr(struct mvs_info *mvi, int irq, u32 stat)
{
void __iomem *regs = mvi->regs;
/* clear CMD_CMPLT ASAP */
mw32_f(MVS_INT_STAT, CINT_DONE);
spin_lock(&mvi->lock);
mvs_int_full(mvi);
spin_unlock(&mvi->lock);
return IRQ_HANDLED;
}
static void mvs_64xx_command_active(struct mvs_info *mvi, u32 slot_idx)
{
u32 tmp;
mvs_cw32(mvi, 0x40 + (slot_idx >> 3), 1 << (slot_idx % 32));
mvs_cw32(mvi, 0x00 + (slot_idx >> 3), 1 << (slot_idx % 32));
do {
tmp = mvs_cr32(mvi, 0x00 + (slot_idx >> 3));
} while (tmp & 1 << (slot_idx % 32));
do {
tmp = mvs_cr32(mvi, 0x40 + (slot_idx >> 3));
} while (tmp & 1 << (slot_idx % 32));
}
static void mvs_64xx_issue_stop(struct mvs_info *mvi, enum mvs_port_type type,
u32 tfs)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (type == PORT_TYPE_SATA) {
tmp = mr32(MVS_INT_STAT_SRS_0) | (1U << tfs);
mw32(MVS_INT_STAT_SRS_0, tmp);
}
mw32(MVS_INT_STAT, CINT_CI_STOP);
tmp = mr32(MVS_PCS) | 0xFF00;
mw32(MVS_PCS, tmp);
}
static void mvs_64xx_free_reg_set(struct mvs_info *mvi, u8 *tfs)
{
void __iomem *regs = mvi->regs;
u32 tmp, offs;
if (*tfs == MVS_ID_NOT_MAPPED)
return;
offs = 1U << ((*tfs & 0x0f) + PCS_EN_SATA_REG_SHIFT);
if (*tfs < 16) {
tmp = mr32(MVS_PCS);
mw32(MVS_PCS, tmp & ~offs);
} else {
tmp = mr32(MVS_CTL);
mw32(MVS_CTL, tmp & ~offs);
}
tmp = mr32(MVS_INT_STAT_SRS_0) & (1U << *tfs);
if (tmp)
mw32(MVS_INT_STAT_SRS_0, tmp);
*tfs = MVS_ID_NOT_MAPPED;
return;
}
static u8 mvs_64xx_assign_reg_set(struct mvs_info *mvi, u8 *tfs)
{
int i;
u32 tmp, offs;
void __iomem *regs = mvi->regs;
if (*tfs != MVS_ID_NOT_MAPPED)
return 0;
tmp = mr32(MVS_PCS);
for (i = 0; i < mvi->chip->srs_sz; i++) {
if (i == 16)
tmp = mr32(MVS_CTL);
offs = 1U << ((i & 0x0f) + PCS_EN_SATA_REG_SHIFT);
if (!(tmp & offs)) {
*tfs = i;
if (i < 16)
mw32(MVS_PCS, tmp | offs);
else
mw32(MVS_CTL, tmp | offs);
tmp = mr32(MVS_INT_STAT_SRS_0) & (1U << i);
if (tmp)
mw32(MVS_INT_STAT_SRS_0, tmp);
return 0;
}
}
return MVS_ID_NOT_MAPPED;
}
static void mvs_64xx_make_prd(struct scatterlist *scatter, int nr, void *prd)
{
int i;
struct scatterlist *sg;
struct mvs_prd *buf_prd = prd;
for_each_sg(scatter, sg, nr, i) {
buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
buf_prd->len = cpu_to_le32(sg_dma_len(sg));
buf_prd++;
}
}
static int mvs_64xx_oob_done(struct mvs_info *mvi, int i)
{
u32 phy_st;
mvs_write_port_cfg_addr(mvi, i,
PHYR_PHY_STAT);
phy_st = mvs_read_port_cfg_data(mvi, i);
if (phy_st & PHY_OOB_DTCTD)
return 1;
return 0;
}
static void mvs_64xx_fix_phy_info(struct mvs_info *mvi, int i,
struct sas_identify_frame *id)
{
struct mvs_phy *phy = &mvi->phy[i];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
sas_phy->linkrate =
(phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
phy->minimum_linkrate =
(phy->phy_status &
PHY_MIN_SPP_PHYS_LINK_RATE_MASK) >> 8;
phy->maximum_linkrate =
(phy->phy_status &
PHY_MAX_SPP_PHYS_LINK_RATE_MASK) >> 12;
mvs_write_port_cfg_addr(mvi, i, PHYR_IDENTIFY);
phy->dev_info = mvs_read_port_cfg_data(mvi, i);
mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_DEV_INFO);
phy->att_dev_info = mvs_read_port_cfg_data(mvi, i);
mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_HI);
phy->att_dev_sas_addr =
(u64) mvs_read_port_cfg_data(mvi, i) << 32;
mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_LO);
phy->att_dev_sas_addr |= mvs_read_port_cfg_data(mvi, i);
phy->att_dev_sas_addr = SAS_ADDR(&phy->att_dev_sas_addr);
}
static void mvs_64xx_phy_work_around(struct mvs_info *mvi, int i)
{
u32 tmp;
struct mvs_phy *phy = &mvi->phy[i];
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE6);
tmp = mvs_read_port_vsr_data(mvi, i);
if (((phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET) ==
SAS_LINK_RATE_1_5_GBPS)
tmp &= ~PHY_MODE6_LATECLK;
else
tmp |= PHY_MODE6_LATECLK;
mvs_write_port_vsr_data(mvi, i, tmp);
}
static void mvs_64xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
struct sas_phy_linkrates *rates)
{
u32 lrmin = 0, lrmax = 0;
u32 tmp;
tmp = mvs_read_phy_ctl(mvi, phy_id);
lrmin = (rates->minimum_linkrate << 8);
lrmax = (rates->maximum_linkrate << 12);
if (lrmin) {
tmp &= ~(0xf << 8);
tmp |= lrmin;
}
if (lrmax) {
tmp &= ~(0xf << 12);
tmp |= lrmax;
}
mvs_write_phy_ctl(mvi, phy_id, tmp);
mvs_64xx_phy_reset(mvi, phy_id, MVS_HARD_RESET);
}
static void mvs_64xx_clear_active_cmds(struct mvs_info *mvi)
{
u32 tmp;
void __iomem *regs = mvi->regs;
tmp = mr32(MVS_PCS);
mw32(MVS_PCS, tmp & 0xFFFF);
mw32(MVS_PCS, tmp);
tmp = mr32(MVS_CTL);
mw32(MVS_CTL, tmp & 0xFFFF);
mw32(MVS_CTL, tmp);
}
static u32 mvs_64xx_spi_read_data(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex;
return ior32(SPI_DATA_REG_64XX);
}
static void mvs_64xx_spi_write_data(struct mvs_info *mvi, u32 data)
{
void __iomem *regs = mvi->regs_ex;
iow32(SPI_DATA_REG_64XX, data);
}
static int mvs_64xx_spi_buildcmd(struct mvs_info *mvi,
u32 *dwCmd,
u8 cmd,
u8 read,
u8 length,
u32 addr
)
{
u32 dwTmp;
dwTmp = ((u32)cmd << 24) | ((u32)length << 19);
if (read)
dwTmp |= 1U<<23;
if (addr != MV_MAX_U32) {
dwTmp |= 1U<<22;
dwTmp |= (addr & 0x0003FFFF);
}
*dwCmd = dwTmp;
return 0;
}
static int mvs_64xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
{
void __iomem *regs = mvi->regs_ex;
int retry;
for (retry = 0; retry < 1; retry++) {
iow32(SPI_CTRL_REG_64XX, SPI_CTRL_VENDOR_ENABLE);
iow32(SPI_CMD_REG_64XX, cmd);
iow32(SPI_CTRL_REG_64XX,
SPI_CTRL_VENDOR_ENABLE | SPI_CTRL_SPISTART);
}
return 0;
}
static int mvs_64xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
{
void __iomem *regs = mvi->regs_ex;
u32 i, dwTmp;
for (i = 0; i < timeout; i++) {
dwTmp = ior32(SPI_CTRL_REG_64XX);
if (!(dwTmp & SPI_CTRL_SPISTART))
return 0;
msleep(10);
}
return -1;
}
static void mvs_64xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
int buf_len, int from, void *prd)
{
int i;
struct mvs_prd *buf_prd = prd;
dma_addr_t buf_dma = mvi->bulk_buffer_dma;
buf_prd += from;
for (i = 0; i < MAX_SG_ENTRY - from; i++) {
buf_prd->addr = cpu_to_le64(buf_dma);
buf_prd->len = cpu_to_le32(buf_len);
++buf_prd;
}
}
static void mvs_64xx_tune_interrupt(struct mvs_info *mvi, u32 time)
{
void __iomem *regs = mvi->regs;
u32 tmp = 0;
/*
* the max count is 0x1ff, while our max slot is 0x200,
* it will make count 0.
*/
if (time == 0) {
mw32(MVS_INT_COAL, 0);
mw32(MVS_INT_COAL_TMOUT, 0x10000);
} else {
if (MVS_CHIP_SLOT_SZ > 0x1ff)
mw32(MVS_INT_COAL, 0x1ff|COAL_EN);
else
mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ|COAL_EN);
tmp = 0x10000 | time;
mw32(MVS_INT_COAL_TMOUT, tmp);
}
}
const struct mvs_dispatch mvs_64xx_dispatch = {
"mv64xx",
mvs_64xx_init,
NULL,
mvs_64xx_ioremap,
mvs_64xx_iounmap,
mvs_64xx_isr,
mvs_64xx_isr_status,
mvs_64xx_interrupt_enable,
mvs_64xx_interrupt_disable,
mvs_read_phy_ctl,
mvs_write_phy_ctl,
mvs_read_port_cfg_data,
mvs_write_port_cfg_data,
mvs_write_port_cfg_addr,
mvs_read_port_vsr_data,
mvs_write_port_vsr_data,
mvs_write_port_vsr_addr,
mvs_read_port_irq_stat,
mvs_write_port_irq_stat,
mvs_read_port_irq_mask,
mvs_write_port_irq_mask,
mvs_64xx_command_active,
mvs_64xx_clear_srs_irq,
mvs_64xx_issue_stop,
mvs_start_delivery,
mvs_rx_update,
mvs_int_full,
mvs_64xx_assign_reg_set,
mvs_64xx_free_reg_set,
mvs_get_prd_size,
mvs_get_prd_count,
mvs_64xx_make_prd,
mvs_64xx_detect_porttype,
mvs_64xx_oob_done,
mvs_64xx_fix_phy_info,
mvs_64xx_phy_work_around,
mvs_64xx_phy_set_link_rate,
mvs_hw_max_link_rate,
mvs_64xx_phy_disable,
mvs_64xx_phy_enable,
mvs_64xx_phy_reset,
mvs_64xx_stp_reset,
mvs_64xx_clear_active_cmds,
mvs_64xx_spi_read_data,
mvs_64xx_spi_write_data,
mvs_64xx_spi_buildcmd,
mvs_64xx_spi_issuecmd,
mvs_64xx_spi_waitdataready,
mvs_64xx_fix_dma,
mvs_64xx_tune_interrupt,
NULL,
};
|
linux-master
|
drivers/scsi/mvsas/mv_64xx.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Marvell 88SE64xx/88SE94xx main function
*
* Copyright 2007 Red Hat, Inc.
* Copyright 2008 Marvell. <[email protected]>
* Copyright 2009-2011 Marvell. <[email protected]>
*/
#include "mv_sas.h"
static int mvs_find_tag(struct mvs_info *mvi, struct sas_task *task, u32 *tag)
{
if (task->lldd_task) {
struct mvs_slot_info *slot;
slot = task->lldd_task;
*tag = slot->slot_tag;
return 1;
}
return 0;
}
static void mvs_tag_clear(struct mvs_info *mvi, u32 tag)
{
void *bitmap = mvi->rsvd_tags;
clear_bit(tag, bitmap);
}
static void mvs_tag_free(struct mvs_info *mvi, u32 tag)
{
if (tag >= MVS_RSVD_SLOTS)
return;
mvs_tag_clear(mvi, tag);
}
static void mvs_tag_set(struct mvs_info *mvi, unsigned int tag)
{
void *bitmap = mvi->rsvd_tags;
set_bit(tag, bitmap);
}
static int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out)
{
unsigned int index, tag;
void *bitmap = mvi->rsvd_tags;
index = find_first_zero_bit(bitmap, MVS_RSVD_SLOTS);
tag = index;
if (tag >= MVS_RSVD_SLOTS)
return -SAS_QUEUE_FULL;
mvs_tag_set(mvi, tag);
*tag_out = tag;
return 0;
}
static struct mvs_info *mvs_find_dev_mvi(struct domain_device *dev)
{
unsigned long i = 0, j = 0, hi = 0;
struct sas_ha_struct *sha = dev->port->ha;
struct mvs_info *mvi = NULL;
struct asd_sas_phy *phy;
while (sha->sas_port[i]) {
if (sha->sas_port[i] == dev->port) {
spin_lock(&sha->sas_port[i]->phy_list_lock);
phy = container_of(sha->sas_port[i]->phy_list.next,
struct asd_sas_phy, port_phy_el);
spin_unlock(&sha->sas_port[i]->phy_list_lock);
j = 0;
while (sha->sas_phy[j]) {
if (sha->sas_phy[j] == phy)
break;
j++;
}
break;
}
i++;
}
hi = j/((struct mvs_prv_info *)sha->lldd_ha)->n_phy;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi];
return mvi;
}
static int mvs_find_dev_phyno(struct domain_device *dev, int *phyno)
{
unsigned long i = 0, j = 0, n = 0, num = 0;
struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
struct mvs_info *mvi = mvi_dev->mvi_info;
struct sas_ha_struct *sha = dev->port->ha;
while (sha->sas_port[i]) {
if (sha->sas_port[i] == dev->port) {
struct asd_sas_phy *phy;
spin_lock(&sha->sas_port[i]->phy_list_lock);
list_for_each_entry(phy,
&sha->sas_port[i]->phy_list, port_phy_el) {
j = 0;
while (sha->sas_phy[j]) {
if (sha->sas_phy[j] == phy)
break;
j++;
}
phyno[n] = (j >= mvi->chip->n_phy) ?
(j - mvi->chip->n_phy) : j;
num++;
n++;
}
spin_unlock(&sha->sas_port[i]->phy_list_lock);
break;
}
i++;
}
return num;
}
struct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi,
u8 reg_set)
{
u32 dev_no;
for (dev_no = 0; dev_no < MVS_MAX_DEVICES; dev_no++) {
if (mvi->devices[dev_no].taskfileset == MVS_ID_NOT_MAPPED)
continue;
if (mvi->devices[dev_no].taskfileset == reg_set)
return &mvi->devices[dev_no];
}
return NULL;
}
static inline void mvs_free_reg_set(struct mvs_info *mvi,
struct mvs_device *dev)
{
if (!dev) {
mv_printk("device has been free.\n");
return;
}
if (dev->taskfileset == MVS_ID_NOT_MAPPED)
return;
MVS_CHIP_DISP->free_reg_set(mvi, &dev->taskfileset);
}
static inline u8 mvs_assign_reg_set(struct mvs_info *mvi,
struct mvs_device *dev)
{
if (dev->taskfileset != MVS_ID_NOT_MAPPED)
return 0;
return MVS_CHIP_DISP->assign_reg_set(mvi, &dev->taskfileset);
}
void mvs_phys_reset(struct mvs_info *mvi, u32 phy_mask, int hard)
{
u32 no;
for_each_phy(phy_mask, phy_mask, no) {
if (!(phy_mask & 1))
continue;
MVS_CHIP_DISP->phy_reset(mvi, no, hard);
}
}
int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
void *funcdata)
{
int rc = 0, phy_id = sas_phy->id;
u32 tmp, i = 0, hi;
struct sas_ha_struct *sha = sas_phy->ha;
struct mvs_info *mvi = NULL;
while (sha->sas_phy[i]) {
if (sha->sas_phy[i] == sas_phy)
break;
i++;
}
hi = i/((struct mvs_prv_info *)sha->lldd_ha)->n_phy;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi];
switch (func) {
case PHY_FUNC_SET_LINK_RATE:
MVS_CHIP_DISP->phy_set_link_rate(mvi, phy_id, funcdata);
break;
case PHY_FUNC_HARD_RESET:
tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_id);
if (tmp & PHY_RST_HARD)
break;
MVS_CHIP_DISP->phy_reset(mvi, phy_id, MVS_HARD_RESET);
break;
case PHY_FUNC_LINK_RESET:
MVS_CHIP_DISP->phy_enable(mvi, phy_id);
MVS_CHIP_DISP->phy_reset(mvi, phy_id, MVS_SOFT_RESET);
break;
case PHY_FUNC_DISABLE:
MVS_CHIP_DISP->phy_disable(mvi, phy_id);
break;
case PHY_FUNC_RELEASE_SPINUP_HOLD:
default:
rc = -ENOSYS;
}
msleep(200);
return rc;
}
void mvs_set_sas_addr(struct mvs_info *mvi, int port_id, u32 off_lo,
u32 off_hi, u64 sas_addr)
{
u32 lo = (u32)sas_addr;
u32 hi = (u32)(sas_addr>>32);
MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_lo);
MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, lo);
MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_hi);
MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, hi);
}
static void mvs_bytes_dmaed(struct mvs_info *mvi, int i, gfp_t gfp_flags)
{
struct mvs_phy *phy = &mvi->phy[i];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
if (!phy->phy_attached)
return;
if (!(phy->att_dev_info & PORT_DEV_TRGT_MASK)
&& phy->phy_type & PORT_TYPE_SAS) {
return;
}
sas_notify_phy_event(sas_phy, PHYE_OOB_DONE, gfp_flags);
if (sas_phy->phy) {
struct sas_phy *sphy = sas_phy->phy;
sphy->negotiated_linkrate = sas_phy->linkrate;
sphy->minimum_linkrate = phy->minimum_linkrate;
sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
sphy->maximum_linkrate = phy->maximum_linkrate;
sphy->maximum_linkrate_hw = MVS_CHIP_DISP->phy_max_link_rate();
}
if (phy->phy_type & PORT_TYPE_SAS) {
struct sas_identify_frame *id;
id = (struct sas_identify_frame *)phy->frame_rcvd;
id->dev_type = phy->identify.device_type;
id->initiator_bits = SAS_PROTOCOL_ALL;
id->target_bits = phy->identify.target_port_protocols;
/* direct attached SAS device */
if (phy->att_dev_info & PORT_SSP_TRGT_MASK) {
MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
MVS_CHIP_DISP->write_port_cfg_data(mvi, i, 0x00);
}
} else if (phy->phy_type & PORT_TYPE_SATA) {
/*Nothing*/
}
mv_dprintk("phy %d byte dmaded.\n", i + mvi->id * mvi->chip->n_phy);
sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
sas_notify_port_event(sas_phy, PORTE_BYTES_DMAED, gfp_flags);
}
void mvs_scan_start(struct Scsi_Host *shost)
{
int i, j;
unsigned short core_nr;
struct mvs_info *mvi;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct mvs_prv_info *mvs_prv = sha->lldd_ha;
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
for (j = 0; j < core_nr; j++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
for (i = 0; i < mvi->chip->n_phy; ++i)
mvs_bytes_dmaed(mvi, i, GFP_KERNEL);
}
mvs_prv->scan_finished = 1;
}
int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct mvs_prv_info *mvs_prv = sha->lldd_ha;
if (mvs_prv->scan_finished == 0)
return 0;
sas_drain_work(sha);
return 1;
}
static int mvs_task_prep_smp(struct mvs_info *mvi,
struct mvs_task_exec_info *tei)
{
int elem, rc, i;
struct sas_ha_struct *sha = mvi->sas;
struct sas_task *task = tei->task;
struct mvs_cmd_hdr *hdr = tei->hdr;
struct domain_device *dev = task->dev;
struct asd_sas_port *sas_port = dev->port;
struct sas_phy *sphy = dev->phy;
struct asd_sas_phy *sas_phy = sha->sas_phy[sphy->number];
struct scatterlist *sg_req, *sg_resp;
u32 req_len, resp_len, tag = tei->tag;
void *buf_tmp;
u8 *buf_oaf;
dma_addr_t buf_tmp_dma;
void *buf_prd;
struct mvs_slot_info *slot = &mvi->slot_info[tag];
u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
/*
* DMA-map SMP request, response buffers
*/
sg_req = &task->smp_task.smp_req;
elem = dma_map_sg(mvi->dev, sg_req, 1, DMA_TO_DEVICE);
if (!elem)
return -ENOMEM;
req_len = sg_dma_len(sg_req);
sg_resp = &task->smp_task.smp_resp;
elem = dma_map_sg(mvi->dev, sg_resp, 1, DMA_FROM_DEVICE);
if (!elem) {
rc = -ENOMEM;
goto err_out;
}
resp_len = SB_RFB_MAX;
/* must be in dwords */
if ((req_len & 0x3) || (resp_len & 0x3)) {
rc = -EINVAL;
goto err_out_2;
}
/*
* arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
*/
/* region 1: command table area (MVS_SSP_CMD_SZ bytes) ***** */
buf_tmp = slot->buf;
buf_tmp_dma = slot->buf_dma;
hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req));
/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
buf_oaf = buf_tmp;
hdr->open_frame = cpu_to_le64(buf_tmp_dma);
buf_tmp += MVS_OAF_SZ;
buf_tmp_dma += MVS_OAF_SZ;
/* region 3: PRD table *********************************** */
buf_prd = buf_tmp;
if (tei->n_elem)
hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
else
hdr->prd_tbl = 0;
i = MVS_CHIP_DISP->prd_size() * tei->n_elem;
buf_tmp += i;
buf_tmp_dma += i;
/* region 4: status buffer (larger the PRD, smaller this buf) ****** */
slot->response = buf_tmp;
hdr->status_buf = cpu_to_le64(buf_tmp_dma);
if (mvi->flags & MVF_FLAG_SOC)
hdr->reserved[0] = 0;
/*
* Fill in TX ring and command slot header
*/
slot->tx = mvi->tx_prod;
mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) |
TXQ_MODE_I | tag |
(MVS_PHY_ID << TXQ_PHY_SHIFT));
hdr->flags |= flags;
hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4));
hdr->tags = cpu_to_le32(tag);
hdr->data_len = 0;
/* generate open address frame hdr (first 12 bytes) */
/* initiator, SMP, ftype 1h */
buf_oaf[0] = (1 << 7) | (PROTOCOL_SMP << 4) | 0x01;
buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
*(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */
memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);
/* fill in PRD (scatter/gather) table, if any */
MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd);
return 0;
err_out_2:
dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_resp, 1,
DMA_FROM_DEVICE);
err_out:
dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_req, 1,
DMA_TO_DEVICE);
return rc;
}
static u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag)
{
struct ata_queued_cmd *qc = task->uldd_task;
if (qc) {
if (qc->tf.command == ATA_CMD_FPDMA_WRITE ||
qc->tf.command == ATA_CMD_FPDMA_READ ||
qc->tf.command == ATA_CMD_FPDMA_RECV ||
qc->tf.command == ATA_CMD_FPDMA_SEND ||
qc->tf.command == ATA_CMD_NCQ_NON_DATA) {
*tag = qc->tag;
return 1;
}
}
return 0;
}
static int mvs_task_prep_ata(struct mvs_info *mvi,
struct mvs_task_exec_info *tei)
{
struct sas_task *task = tei->task;
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = dev->lldd_dev;
struct mvs_cmd_hdr *hdr = tei->hdr;
struct asd_sas_port *sas_port = dev->port;
struct mvs_slot_info *slot;
void *buf_prd;
u32 tag = tei->tag, hdr_tag;
u32 flags, del_q;
void *buf_tmp;
u8 *buf_cmd, *buf_oaf;
dma_addr_t buf_tmp_dma;
u32 i, req_len, resp_len;
const u32 max_resp_len = SB_RFB_MAX;
if (mvs_assign_reg_set(mvi, mvi_dev) == MVS_ID_NOT_MAPPED) {
mv_dprintk("Have not enough regiset for dev %d.\n",
mvi_dev->device_id);
return -EBUSY;
}
slot = &mvi->slot_info[tag];
slot->tx = mvi->tx_prod;
del_q = TXQ_MODE_I | tag |
(TXQ_CMD_STP << TXQ_CMD_SHIFT) |
((sas_port->phy_mask & TXQ_PHY_MASK) << TXQ_PHY_SHIFT) |
(mvi_dev->taskfileset << TXQ_SRS_SHIFT);
mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q);
if (task->data_dir == DMA_FROM_DEVICE)
flags = (MVS_CHIP_DISP->prd_count() << MCH_PRD_LEN_SHIFT);
else
flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
if (task->ata_task.use_ncq)
flags |= MCH_FPDMA;
if (dev->sata_dev.class == ATA_DEV_ATAPI) {
if (task->ata_task.fis.command != ATA_CMD_ID_ATAPI)
flags |= MCH_ATAPI;
}
hdr->flags = cpu_to_le32(flags);
if (task->ata_task.use_ncq && mvs_get_ncq_tag(task, &hdr_tag))
task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
else
hdr_tag = tag;
hdr->tags = cpu_to_le32(hdr_tag);
hdr->data_len = cpu_to_le32(task->total_xfer_len);
/*
* arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
*/
/* region 1: command table area (MVS_ATA_CMD_SZ bytes) ************** */
buf_cmd = buf_tmp = slot->buf;
buf_tmp_dma = slot->buf_dma;
hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);
buf_tmp += MVS_ATA_CMD_SZ;
buf_tmp_dma += MVS_ATA_CMD_SZ;
/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
/* used for STP. unused for SATA? */
buf_oaf = buf_tmp;
hdr->open_frame = cpu_to_le64(buf_tmp_dma);
buf_tmp += MVS_OAF_SZ;
buf_tmp_dma += MVS_OAF_SZ;
/* region 3: PRD table ********************************************* */
buf_prd = buf_tmp;
if (tei->n_elem)
hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
else
hdr->prd_tbl = 0;
i = MVS_CHIP_DISP->prd_size() * MVS_CHIP_DISP->prd_count();
buf_tmp += i;
buf_tmp_dma += i;
/* region 4: status buffer (larger the PRD, smaller this buf) ****** */
slot->response = buf_tmp;
hdr->status_buf = cpu_to_le64(buf_tmp_dma);
if (mvi->flags & MVF_FLAG_SOC)
hdr->reserved[0] = 0;
req_len = sizeof(struct host_to_dev_fis);
resp_len = MVS_SLOT_BUF_SZ - MVS_ATA_CMD_SZ -
sizeof(struct mvs_err_info) - i;
/* request, response lengths */
resp_len = min(resp_len, max_resp_len);
hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4));
if (likely(!task->ata_task.device_control_reg_update))
task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
/* fill in command FIS and ATAPI CDB */
memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
if (dev->sata_dev.class == ATA_DEV_ATAPI)
memcpy(buf_cmd + STP_ATAPI_CMD,
task->ata_task.atapi_packet, 16);
/* generate open address frame hdr (first 12 bytes) */
/* initiator, STP, ftype 1h */
buf_oaf[0] = (1 << 7) | (PROTOCOL_STP << 4) | 0x1;
buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
*(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1);
memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);
/* fill in PRD (scatter/gather) table, if any */
MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd);
if (task->data_dir == DMA_FROM_DEVICE)
MVS_CHIP_DISP->dma_fix(mvi, sas_port->phy_mask,
TRASH_BUCKET_SIZE, tei->n_elem, buf_prd);
return 0;
}
static int mvs_task_prep_ssp(struct mvs_info *mvi,
struct mvs_task_exec_info *tei, int is_tmf,
struct sas_tmf_task *tmf)
{
struct sas_task *task = tei->task;
struct mvs_cmd_hdr *hdr = tei->hdr;
struct mvs_port *port = tei->port;
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = dev->lldd_dev;
struct asd_sas_port *sas_port = dev->port;
struct mvs_slot_info *slot;
void *buf_prd;
struct ssp_frame_hdr *ssp_hdr;
void *buf_tmp;
u8 *buf_cmd, *buf_oaf;
dma_addr_t buf_tmp_dma;
u32 flags;
u32 resp_len, req_len, i, tag = tei->tag;
const u32 max_resp_len = SB_RFB_MAX;
u32 phy_mask;
slot = &mvi->slot_info[tag];
phy_mask = ((port->wide_port_phymap) ? port->wide_port_phymap :
sas_port->phy_mask) & TXQ_PHY_MASK;
slot->tx = mvi->tx_prod;
mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | tag |
(TXQ_CMD_SSP << TXQ_CMD_SHIFT) |
(phy_mask << TXQ_PHY_SHIFT));
flags = MCH_RETRY;
if (is_tmf)
flags |= (MCH_SSP_FR_TASK << MCH_SSP_FR_TYPE_SHIFT);
else
flags |= (MCH_SSP_FR_CMD << MCH_SSP_FR_TYPE_SHIFT);
hdr->flags = cpu_to_le32(flags | (tei->n_elem << MCH_PRD_LEN_SHIFT));
hdr->tags = cpu_to_le32(tag);
hdr->data_len = cpu_to_le32(task->total_xfer_len);
/*
* arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
*/
/* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */
buf_cmd = buf_tmp = slot->buf;
buf_tmp_dma = slot->buf_dma;
hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);
buf_tmp += MVS_SSP_CMD_SZ;
buf_tmp_dma += MVS_SSP_CMD_SZ;
/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
buf_oaf = buf_tmp;
hdr->open_frame = cpu_to_le64(buf_tmp_dma);
buf_tmp += MVS_OAF_SZ;
buf_tmp_dma += MVS_OAF_SZ;
/* region 3: PRD table ********************************************* */
buf_prd = buf_tmp;
if (tei->n_elem)
hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
else
hdr->prd_tbl = 0;
i = MVS_CHIP_DISP->prd_size() * tei->n_elem;
buf_tmp += i;
buf_tmp_dma += i;
/* region 4: status buffer (larger the PRD, smaller this buf) ****** */
slot->response = buf_tmp;
hdr->status_buf = cpu_to_le64(buf_tmp_dma);
if (mvi->flags & MVF_FLAG_SOC)
hdr->reserved[0] = 0;
resp_len = MVS_SLOT_BUF_SZ - MVS_SSP_CMD_SZ - MVS_OAF_SZ -
sizeof(struct mvs_err_info) - i;
resp_len = min(resp_len, max_resp_len);
req_len = sizeof(struct ssp_frame_hdr) + 28;
/* request, response lengths */
hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4));
/* generate open address frame hdr (first 12 bytes) */
/* initiator, SSP, ftype 1h */
buf_oaf[0] = (1 << 7) | (PROTOCOL_SSP << 4) | 0x1;
buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
*(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1);
memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);
/* fill in SSP frame header (Command Table.SSP frame header) */
ssp_hdr = (struct ssp_frame_hdr *)buf_cmd;
if (is_tmf)
ssp_hdr->frame_type = SSP_TASK;
else
ssp_hdr->frame_type = SSP_COMMAND;
memcpy(ssp_hdr->hashed_dest_addr, dev->hashed_sas_addr,
HASHED_SAS_ADDR_SIZE);
memcpy(ssp_hdr->hashed_src_addr,
dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
ssp_hdr->tag = cpu_to_be16(tag);
/* fill in IU for TASK and Command Frame */
buf_cmd += sizeof(*ssp_hdr);
memcpy(buf_cmd, &task->ssp_task.LUN, 8);
if (ssp_hdr->frame_type != SSP_TASK) {
buf_cmd[9] = task->ssp_task.task_attr;
memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
task->ssp_task.cmd->cmd_len);
} else{
buf_cmd[10] = tmf->tmf;
switch (tmf->tmf) {
case TMF_ABORT_TASK:
case TMF_QUERY_TASK:
buf_cmd[12] =
(tmf->tag_of_task_to_be_managed >> 8) & 0xff;
buf_cmd[13] =
tmf->tag_of_task_to_be_managed & 0xff;
break;
default:
break;
}
}
/* fill in PRD (scatter/gather) table, if any */
MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd);
return 0;
}
#define DEV_IS_GONE(mvi_dev) ((!mvi_dev || (mvi_dev->dev_type == SAS_PHY_UNUSED)))
static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf,
struct sas_tmf_task *tmf, int *pass)
{
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = dev->lldd_dev;
struct mvs_task_exec_info tei;
struct mvs_slot_info *slot;
u32 tag = 0xdeadbeef, n_elem = 0;
struct request *rq;
int rc = 0;
if (!dev->port) {
struct task_status_struct *tsm = &task->task_status;
tsm->resp = SAS_TASK_UNDELIVERED;
tsm->stat = SAS_PHY_DOWN;
/*
* libsas will use dev->port, should
* not call task_done for sata
*/
if (dev->dev_type != SAS_SATA_DEV)
task->task_done(task);
return rc;
}
if (DEV_IS_GONE(mvi_dev)) {
if (mvi_dev)
mv_dprintk("device %d not ready.\n",
mvi_dev->device_id);
else
mv_dprintk("device %016llx not ready.\n",
SAS_ADDR(dev->sas_addr));
rc = SAS_PHY_DOWN;
return rc;
}
tei.port = dev->port->lldd_port;
if (tei.port && !tei.port->port_attached && !tmf) {
if (sas_protocol_ata(task->task_proto)) {
struct task_status_struct *ts = &task->task_status;
mv_dprintk("SATA/STP port %d does not attach"
"device.\n", dev->port->id);
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_PHY_DOWN;
task->task_done(task);
} else {
struct task_status_struct *ts = &task->task_status;
mv_dprintk("SAS port %d does not attach"
"device.\n", dev->port->id);
ts->resp = SAS_TASK_UNDELIVERED;
ts->stat = SAS_PHY_DOWN;
task->task_done(task);
}
return rc;
}
if (!sas_protocol_ata(task->task_proto)) {
if (task->num_scatter) {
n_elem = dma_map_sg(mvi->dev,
task->scatter,
task->num_scatter,
task->data_dir);
if (!n_elem) {
rc = -ENOMEM;
goto prep_out;
}
}
} else {
n_elem = task->num_scatter;
}
rq = sas_task_find_rq(task);
if (rq) {
tag = rq->tag + MVS_RSVD_SLOTS;
} else {
rc = mvs_tag_alloc(mvi, &tag);
if (rc)
goto err_out;
}
slot = &mvi->slot_info[tag];
task->lldd_task = NULL;
slot->n_elem = n_elem;
slot->slot_tag = tag;
slot->buf = dma_pool_zalloc(mvi->dma_pool, GFP_ATOMIC, &slot->buf_dma);
if (!slot->buf) {
rc = -ENOMEM;
goto err_out_tag;
}
tei.task = task;
tei.hdr = &mvi->slot[tag];
tei.tag = tag;
tei.n_elem = n_elem;
switch (task->task_proto) {
case SAS_PROTOCOL_SMP:
rc = mvs_task_prep_smp(mvi, &tei);
break;
case SAS_PROTOCOL_SSP:
rc = mvs_task_prep_ssp(mvi, &tei, is_tmf, tmf);
break;
case SAS_PROTOCOL_SATA:
case SAS_PROTOCOL_STP:
case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
rc = mvs_task_prep_ata(mvi, &tei);
break;
default:
dev_printk(KERN_ERR, mvi->dev,
"unknown sas_task proto: 0x%x\n",
task->task_proto);
rc = -EINVAL;
break;
}
if (rc) {
mv_dprintk("rc is %x\n", rc);
goto err_out_slot_buf;
}
slot->task = task;
slot->port = tei.port;
task->lldd_task = slot;
list_add_tail(&slot->entry, &tei.port->list);
mvi_dev->running_req++;
++(*pass);
mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1);
return rc;
err_out_slot_buf:
dma_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma);
err_out_tag:
mvs_tag_free(mvi, tag);
err_out:
dev_printk(KERN_ERR, mvi->dev, "mvsas prep failed[%d]!\n", rc);
if (!sas_protocol_ata(task->task_proto))
if (n_elem)
dma_unmap_sg(mvi->dev, task->scatter, n_elem,
task->data_dir);
prep_out:
return rc;
}
int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags)
{
struct mvs_info *mvi = NULL;
u32 rc = 0;
u32 pass = 0;
unsigned long flags = 0;
struct sas_tmf_task *tmf = task->tmf;
int is_tmf = !!task->tmf;
mvi = ((struct mvs_device *)task->dev->lldd_dev)->mvi_info;
spin_lock_irqsave(&mvi->lock, flags);
rc = mvs_task_prep(task, mvi, is_tmf, tmf, &pass);
if (rc)
dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc);
if (likely(pass))
MVS_CHIP_DISP->start_delivery(mvi, (mvi->tx_prod - 1) &
(MVS_CHIP_SLOT_SZ - 1));
spin_unlock_irqrestore(&mvi->lock, flags);
return rc;
}
static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc)
{
u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
mvs_tag_free(mvi, slot_idx);
}
static void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task,
struct mvs_slot_info *slot, u32 slot_idx)
{
if (!slot)
return;
if (!slot->task)
return;
if (!sas_protocol_ata(task->task_proto))
if (slot->n_elem)
dma_unmap_sg(mvi->dev, task->scatter,
slot->n_elem, task->data_dir);
switch (task->task_proto) {
case SAS_PROTOCOL_SMP:
dma_unmap_sg(mvi->dev, &task->smp_task.smp_resp, 1,
DMA_FROM_DEVICE);
dma_unmap_sg(mvi->dev, &task->smp_task.smp_req, 1,
DMA_TO_DEVICE);
break;
case SAS_PROTOCOL_SATA:
case SAS_PROTOCOL_STP:
case SAS_PROTOCOL_SSP:
default:
/* do nothing */
break;
}
if (slot->buf) {
dma_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma);
slot->buf = NULL;
}
list_del_init(&slot->entry);
task->lldd_task = NULL;
slot->task = NULL;
slot->port = NULL;
slot->slot_tag = 0xFFFFFFFF;
mvs_slot_free(mvi, slot_idx);
}
static void mvs_update_wideport(struct mvs_info *mvi, int phy_no)
{
struct mvs_phy *phy = &mvi->phy[phy_no];
struct mvs_port *port = phy->port;
int j, no;
for_each_phy(port->wide_port_phymap, j, no) {
if (j & 1) {
MVS_CHIP_DISP->write_port_cfg_addr(mvi, no,
PHYR_WIDE_PORT);
MVS_CHIP_DISP->write_port_cfg_data(mvi, no,
port->wide_port_phymap);
} else {
MVS_CHIP_DISP->write_port_cfg_addr(mvi, no,
PHYR_WIDE_PORT);
MVS_CHIP_DISP->write_port_cfg_data(mvi, no,
0);
}
}
}
static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i)
{
u32 tmp;
struct mvs_phy *phy = &mvi->phy[i];
struct mvs_port *port = phy->port;
tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, i);
if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) {
if (!port)
phy->phy_attached = 1;
return tmp;
}
if (port) {
if (phy->phy_type & PORT_TYPE_SAS) {
port->wide_port_phymap &= ~(1U << i);
if (!port->wide_port_phymap)
port->port_attached = 0;
mvs_update_wideport(mvi, i);
} else if (phy->phy_type & PORT_TYPE_SATA)
port->port_attached = 0;
phy->port = NULL;
phy->phy_attached = 0;
phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
}
return 0;
}
static void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf)
{
u32 *s = (u32 *) buf;
if (!s)
return NULL;
MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3);
s[3] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i));
MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2);
s[2] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i));
MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1);
s[1] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i));
MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0);
s[0] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i));
if (((s[1] & 0x00FFFFFF) == 0x00EB1401) && (*(u8 *)&s[3] == 0x01))
s[1] = 0x00EB1401 | (*((u8 *)&s[1] + 3) & 0x10);
return s;
}
static u32 mvs_is_sig_fis_received(u32 irq_status)
{
return irq_status & PHYEV_SIG_FIS;
}
static void mvs_sig_remove_timer(struct mvs_phy *phy)
{
if (phy->timer.function)
del_timer(&phy->timer);
phy->timer.function = NULL;
}
void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st)
{
struct mvs_phy *phy = &mvi->phy[i];
struct sas_identify_frame *id;
id = (struct sas_identify_frame *)phy->frame_rcvd;
if (get_st) {
phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, i);
phy->phy_status = mvs_is_phy_ready(mvi, i);
}
if (phy->phy_status) {
int oob_done = 0;
struct asd_sas_phy *sas_phy = &mvi->phy[i].sas_phy;
oob_done = MVS_CHIP_DISP->oob_done(mvi, i);
MVS_CHIP_DISP->fix_phy_info(mvi, i, id);
if (phy->phy_type & PORT_TYPE_SATA) {
phy->identify.target_port_protocols = SAS_PROTOCOL_STP;
if (mvs_is_sig_fis_received(phy->irq_status)) {
mvs_sig_remove_timer(phy);
phy->phy_attached = 1;
phy->att_dev_sas_addr =
i + mvi->id * mvi->chip->n_phy;
if (oob_done)
sas_phy->oob_mode = SATA_OOB_MODE;
phy->frame_rcvd_size =
sizeof(struct dev_to_host_fis);
mvs_get_d2h_reg(mvi, i, id);
} else {
u32 tmp;
dev_printk(KERN_DEBUG, mvi->dev,
"Phy%d : No sig fis\n", i);
tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, i);
MVS_CHIP_DISP->write_port_irq_mask(mvi, i,
tmp | PHYEV_SIG_FIS);
phy->phy_attached = 0;
phy->phy_type &= ~PORT_TYPE_SATA;
goto out_done;
}
} else if (phy->phy_type & PORT_TYPE_SAS
|| phy->att_dev_info & PORT_SSP_INIT_MASK) {
phy->phy_attached = 1;
phy->identify.device_type =
phy->att_dev_info & PORT_DEV_TYPE_MASK;
if (phy->identify.device_type == SAS_END_DEVICE)
phy->identify.target_port_protocols =
SAS_PROTOCOL_SSP;
else if (phy->identify.device_type != SAS_PHY_UNUSED)
phy->identify.target_port_protocols =
SAS_PROTOCOL_SMP;
if (oob_done)
sas_phy->oob_mode = SAS_OOB_MODE;
phy->frame_rcvd_size =
sizeof(struct sas_identify_frame);
}
memcpy(sas_phy->attached_sas_addr,
&phy->att_dev_sas_addr, SAS_ADDR_SIZE);
if (MVS_CHIP_DISP->phy_work_around)
MVS_CHIP_DISP->phy_work_around(mvi, i);
}
mv_dprintk("phy %d attach dev info is %x\n",
i + mvi->id * mvi->chip->n_phy, phy->att_dev_info);
mv_dprintk("phy %d attach sas addr is %llx\n",
i + mvi->id * mvi->chip->n_phy, phy->att_dev_sas_addr);
out_done:
if (get_st)
MVS_CHIP_DISP->write_port_irq_stat(mvi, i, phy->irq_status);
}
static void mvs_port_notify_formed(struct asd_sas_phy *sas_phy, int lock)
{
struct sas_ha_struct *sas_ha = sas_phy->ha;
struct mvs_info *mvi = NULL; int i = 0, hi;
struct mvs_phy *phy = sas_phy->lldd_phy;
struct asd_sas_port *sas_port = sas_phy->port;
struct mvs_port *port;
unsigned long flags = 0;
if (!sas_port)
return;
while (sas_ha->sas_phy[i]) {
if (sas_ha->sas_phy[i] == sas_phy)
break;
i++;
}
hi = i/((struct mvs_prv_info *)sas_ha->lldd_ha)->n_phy;
mvi = ((struct mvs_prv_info *)sas_ha->lldd_ha)->mvi[hi];
if (i >= mvi->chip->n_phy)
port = &mvi->port[i - mvi->chip->n_phy];
else
port = &mvi->port[i];
if (lock)
spin_lock_irqsave(&mvi->lock, flags);
port->port_attached = 1;
phy->port = port;
sas_port->lldd_port = port;
if (phy->phy_type & PORT_TYPE_SAS) {
port->wide_port_phymap = sas_port->phy_mask;
mv_printk("set wide port phy map %x\n", sas_port->phy_mask);
mvs_update_wideport(mvi, sas_phy->id);
/* direct attached SAS device */
if (phy->att_dev_info & PORT_SSP_TRGT_MASK) {
MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
MVS_CHIP_DISP->write_port_cfg_data(mvi, i, 0x04);
}
}
if (lock)
spin_unlock_irqrestore(&mvi->lock, flags);
}
static void mvs_port_notify_deformed(struct asd_sas_phy *sas_phy, int lock)
{
struct domain_device *dev;
struct mvs_phy *phy = sas_phy->lldd_phy;
struct mvs_info *mvi = phy->mvi;
struct asd_sas_port *port = sas_phy->port;
int phy_no = 0;
while (phy != &mvi->phy[phy_no]) {
phy_no++;
if (phy_no >= MVS_MAX_PHYS)
return;
}
list_for_each_entry(dev, &port->dev_list, dev_list_node)
mvs_do_release_task(phy->mvi, phy_no, dev);
}
void mvs_port_formed(struct asd_sas_phy *sas_phy)
{
mvs_port_notify_formed(sas_phy, 1);
}
void mvs_port_deformed(struct asd_sas_phy *sas_phy)
{
mvs_port_notify_deformed(sas_phy, 1);
}
static struct mvs_device *mvs_alloc_dev(struct mvs_info *mvi)
{
u32 dev;
for (dev = 0; dev < MVS_MAX_DEVICES; dev++) {
if (mvi->devices[dev].dev_type == SAS_PHY_UNUSED) {
mvi->devices[dev].device_id = dev;
return &mvi->devices[dev];
}
}
if (dev == MVS_MAX_DEVICES)
mv_printk("max support %d devices, ignore ..\n",
MVS_MAX_DEVICES);
return NULL;
}
static void mvs_free_dev(struct mvs_device *mvi_dev)
{
u32 id = mvi_dev->device_id;
memset(mvi_dev, 0, sizeof(*mvi_dev));
mvi_dev->device_id = id;
mvi_dev->dev_type = SAS_PHY_UNUSED;
mvi_dev->dev_status = MVS_DEV_NORMAL;
mvi_dev->taskfileset = MVS_ID_NOT_MAPPED;
}
static int mvs_dev_found_notify(struct domain_device *dev, int lock)
{
unsigned long flags = 0;
int res = 0;
struct mvs_info *mvi = NULL;
struct domain_device *parent_dev = dev->parent;
struct mvs_device *mvi_device;
mvi = mvs_find_dev_mvi(dev);
if (lock)
spin_lock_irqsave(&mvi->lock, flags);
mvi_device = mvs_alloc_dev(mvi);
if (!mvi_device) {
res = -1;
goto found_out;
}
dev->lldd_dev = mvi_device;
mvi_device->dev_status = MVS_DEV_NORMAL;
mvi_device->dev_type = dev->dev_type;
mvi_device->mvi_info = mvi;
mvi_device->sas_device = dev;
if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
int phy_id;
phy_id = sas_find_attached_phy_id(&parent_dev->ex_dev, dev);
if (phy_id < 0) {
mv_printk("Error: no attached dev:%016llx"
"at ex:%016llx.\n",
SAS_ADDR(dev->sas_addr),
SAS_ADDR(parent_dev->sas_addr));
res = phy_id;
} else {
mvi_device->attached_phy = phy_id;
}
}
found_out:
if (lock)
spin_unlock_irqrestore(&mvi->lock, flags);
return res;
}
int mvs_dev_found(struct domain_device *dev)
{
return mvs_dev_found_notify(dev, 1);
}
static void mvs_dev_gone_notify(struct domain_device *dev)
{
unsigned long flags = 0;
struct mvs_device *mvi_dev = dev->lldd_dev;
struct mvs_info *mvi;
if (!mvi_dev) {
mv_dprintk("found dev has gone.\n");
return;
}
mvi = mvi_dev->mvi_info;
spin_lock_irqsave(&mvi->lock, flags);
mv_dprintk("found dev[%d:%x] is gone.\n",
mvi_dev->device_id, mvi_dev->dev_type);
mvs_release_task(mvi, dev);
mvs_free_reg_set(mvi, mvi_dev);
mvs_free_dev(mvi_dev);
dev->lldd_dev = NULL;
mvi_dev->sas_device = NULL;
spin_unlock_irqrestore(&mvi->lock, flags);
}
void mvs_dev_gone(struct domain_device *dev)
{
mvs_dev_gone_notify(dev);
}
/* Standard mandates link reset for ATA (type 0)
and hard reset for SSP (type 1) , only for RECOVERY */
static int mvs_debug_I_T_nexus_reset(struct domain_device *dev)
{
int rc;
struct sas_phy *phy = sas_get_local_phy(dev);
int reset_type = (dev->dev_type == SAS_SATA_DEV ||
(dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1;
rc = sas_phy_reset(phy, reset_type);
sas_put_local_phy(phy);
msleep(2000);
return rc;
}
/* mandatory SAM-3 */
int mvs_lu_reset(struct domain_device *dev, u8 *lun)
{
unsigned long flags;
int rc = TMF_RESP_FUNC_FAILED;
struct mvs_device * mvi_dev = dev->lldd_dev;
struct mvs_info *mvi = mvi_dev->mvi_info;
mvi_dev->dev_status = MVS_DEV_EH;
rc = sas_lu_reset(dev, lun);
if (rc == TMF_RESP_FUNC_COMPLETE) {
spin_lock_irqsave(&mvi->lock, flags);
mvs_release_task(mvi, dev);
spin_unlock_irqrestore(&mvi->lock, flags);
}
/* If failed, fall-through I_T_Nexus reset */
mv_printk("%s for device[%x]:rc= %d\n", __func__,
mvi_dev->device_id, rc);
return rc;
}
int mvs_I_T_nexus_reset(struct domain_device *dev)
{
unsigned long flags;
int rc = TMF_RESP_FUNC_FAILED;
struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
struct mvs_info *mvi = mvi_dev->mvi_info;
if (mvi_dev->dev_status != MVS_DEV_EH)
return TMF_RESP_FUNC_COMPLETE;
else
mvi_dev->dev_status = MVS_DEV_NORMAL;
rc = mvs_debug_I_T_nexus_reset(dev);
mv_printk("%s for device[%x]:rc= %d\n",
__func__, mvi_dev->device_id, rc);
spin_lock_irqsave(&mvi->lock, flags);
mvs_release_task(mvi, dev);
spin_unlock_irqrestore(&mvi->lock, flags);
return rc;
}
/* optional SAM-3 */
int mvs_query_task(struct sas_task *task)
{
u32 tag;
int rc = TMF_RESP_FUNC_FAILED;
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
struct mvs_info *mvi = mvi_dev->mvi_info;
rc = mvs_find_tag(mvi, task, &tag);
if (rc == 0) {
rc = TMF_RESP_FUNC_FAILED;
return rc;
}
rc = sas_query_task(task, tag);
switch (rc) {
/* The task is still in Lun, release it then */
case TMF_RESP_FUNC_SUCC:
/* The task is not in Lun or failed, reset the phy */
case TMF_RESP_FUNC_FAILED:
case TMF_RESP_FUNC_COMPLETE:
break;
}
}
mv_printk("%s:rc= %d\n", __func__, rc);
return rc;
}
/* mandatory SAM-3, still need free task/slot info */
int mvs_abort_task(struct sas_task *task)
{
struct domain_device *dev = task->dev;
struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
struct mvs_info *mvi;
int rc = TMF_RESP_FUNC_FAILED;
unsigned long flags;
u32 tag;
if (!mvi_dev) {
mv_printk("Device has removed\n");
return TMF_RESP_FUNC_FAILED;
}
mvi = mvi_dev->mvi_info;
spin_lock_irqsave(&task->task_state_lock, flags);
if (task->task_state_flags & SAS_TASK_STATE_DONE) {
spin_unlock_irqrestore(&task->task_state_lock, flags);
rc = TMF_RESP_FUNC_COMPLETE;
goto out;
}
spin_unlock_irqrestore(&task->task_state_lock, flags);
mvi_dev->dev_status = MVS_DEV_EH;
if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
rc = mvs_find_tag(mvi, task, &tag);
if (rc == 0) {
mv_printk("No such tag in %s\n", __func__);
rc = TMF_RESP_FUNC_FAILED;
return rc;
}
rc = sas_abort_task(task, tag);
/* if successful, clear the task and callback forwards.*/
if (rc == TMF_RESP_FUNC_COMPLETE) {
u32 slot_no;
struct mvs_slot_info *slot;
if (task->lldd_task) {
slot = task->lldd_task;
slot_no = (u32) (slot - mvi->slot_info);
spin_lock_irqsave(&mvi->lock, flags);
mvs_slot_complete(mvi, slot_no, 1);
spin_unlock_irqrestore(&mvi->lock, flags);
}
}
} else if (task->task_proto & SAS_PROTOCOL_SATA ||
task->task_proto & SAS_PROTOCOL_STP) {
if (SAS_SATA_DEV == dev->dev_type) {
struct mvs_slot_info *slot = task->lldd_task;
u32 slot_idx = (u32)(slot - mvi->slot_info);
mv_dprintk("mvs_abort_task() mvi=%p task=%p "
"slot=%p slot_idx=x%x\n",
mvi, task, slot, slot_idx);
task->task_state_flags |= SAS_TASK_STATE_ABORTED;
mvs_slot_task_free(mvi, task, slot, slot_idx);
rc = TMF_RESP_FUNC_COMPLETE;
goto out;
}
}
out:
if (rc != TMF_RESP_FUNC_COMPLETE)
mv_printk("%s:rc= %d\n", __func__, rc);
return rc;
}
static int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task,
u32 slot_idx, int err)
{
struct mvs_device *mvi_dev = task->dev->lldd_dev;
struct task_status_struct *tstat = &task->task_status;
struct ata_task_resp *resp = (struct ata_task_resp *)tstat->buf;
int stat = SAM_STAT_GOOD;
resp->frame_len = sizeof(struct dev_to_host_fis);
memcpy(&resp->ending_fis[0],
SATA_RECEIVED_D2H_FIS(mvi_dev->taskfileset),
sizeof(struct dev_to_host_fis));
tstat->buf_valid_size = sizeof(*resp);
if (unlikely(err)) {
if (unlikely(err & CMD_ISS_STPD))
stat = SAS_OPEN_REJECT;
else
stat = SAS_PROTO_RESPONSE;
}
return stat;
}
static void mvs_set_sense(u8 *buffer, int len, int d_sense,
int key, int asc, int ascq)
{
memset(buffer, 0, len);
if (d_sense) {
/* Descriptor format */
if (len < 4) {
mv_printk("Length %d of sense buffer too small to "
"fit sense %x:%x:%x", len, key, asc, ascq);
}
buffer[0] = 0x72; /* Response Code */
if (len > 1)
buffer[1] = key; /* Sense Key */
if (len > 2)
buffer[2] = asc; /* ASC */
if (len > 3)
buffer[3] = ascq; /* ASCQ */
} else {
if (len < 14) {
mv_printk("Length %d of sense buffer too small to "
"fit sense %x:%x:%x", len, key, asc, ascq);
}
buffer[0] = 0x70; /* Response Code */
if (len > 2)
buffer[2] = key; /* Sense Key */
if (len > 7)
buffer[7] = 0x0a; /* Additional Sense Length */
if (len > 12)
buffer[12] = asc; /* ASC */
if (len > 13)
buffer[13] = ascq; /* ASCQ */
}
return;
}
static void mvs_fill_ssp_resp_iu(struct ssp_response_iu *iu,
u8 key, u8 asc, u8 asc_q)
{
iu->datapres = SAS_DATAPRES_SENSE_DATA;
iu->response_data_len = 0;
iu->sense_data_len = 17;
iu->status = 02;
mvs_set_sense(iu->sense_data, 17, 0,
key, asc, asc_q);
}
static int mvs_slot_err(struct mvs_info *mvi, struct sas_task *task,
u32 slot_idx)
{
struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
int stat;
u32 err_dw0 = le32_to_cpu(*(u32 *)slot->response);
u32 err_dw1 = le32_to_cpu(*((u32 *)slot->response + 1));
u32 tfs = 0;
enum mvs_port_type type = PORT_TYPE_SAS;
if (err_dw0 & CMD_ISS_STPD)
MVS_CHIP_DISP->issue_stop(mvi, type, tfs);
MVS_CHIP_DISP->command_active(mvi, slot_idx);
stat = SAM_STAT_CHECK_CONDITION;
switch (task->task_proto) {
case SAS_PROTOCOL_SSP:
{
stat = SAS_ABORTED_TASK;
if ((err_dw0 & NO_DEST) || err_dw1 & bit(31)) {
struct ssp_response_iu *iu = slot->response +
sizeof(struct mvs_err_info);
mvs_fill_ssp_resp_iu(iu, NOT_READY, 0x04, 01);
sas_ssp_task_response(mvi->dev, task, iu);
stat = SAM_STAT_CHECK_CONDITION;
}
if (err_dw1 & bit(31))
mv_printk("reuse same slot, retry command.\n");
break;
}
case SAS_PROTOCOL_SMP:
stat = SAM_STAT_CHECK_CONDITION;
break;
case SAS_PROTOCOL_SATA:
case SAS_PROTOCOL_STP:
case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
{
task->ata_task.use_ncq = 0;
stat = SAS_PROTO_RESPONSE;
mvs_sata_done(mvi, task, slot_idx, err_dw0);
}
break;
default:
break;
}
return stat;
}
int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
{
u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
struct sas_task *task = slot->task;
struct mvs_device *mvi_dev = NULL;
struct task_status_struct *tstat;
struct domain_device *dev;
u32 aborted;
void *to;
enum exec_status sts;
if (unlikely(!task || !task->lldd_task || !task->dev))
return -1;
tstat = &task->task_status;
dev = task->dev;
mvi_dev = dev->lldd_dev;
spin_lock(&task->task_state_lock);
task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
task->task_state_flags |= SAS_TASK_STATE_DONE;
/* race condition*/
aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED;
spin_unlock(&task->task_state_lock);
memset(tstat, 0, sizeof(*tstat));
tstat->resp = SAS_TASK_COMPLETE;
if (unlikely(aborted)) {
tstat->stat = SAS_ABORTED_TASK;
if (mvi_dev && mvi_dev->running_req)
mvi_dev->running_req--;
if (sas_protocol_ata(task->task_proto))
mvs_free_reg_set(mvi, mvi_dev);
mvs_slot_task_free(mvi, task, slot, slot_idx);
return -1;
}
/* when no device attaching, go ahead and complete by error handling*/
if (unlikely(!mvi_dev || flags)) {
if (!mvi_dev)
mv_dprintk("port has not device.\n");
tstat->stat = SAS_PHY_DOWN;
goto out;
}
/*
* error info record present; slot->response is 32 bit aligned but may
* not be 64 bit aligned, so check for zero in two 32 bit reads
*/
if (unlikely((rx_desc & RXQ_ERR)
&& (*((u32 *)slot->response)
|| *(((u32 *)slot->response) + 1)))) {
mv_dprintk("port %d slot %d rx_desc %X has error info"
"%016llX.\n", slot->port->sas_port.id, slot_idx,
rx_desc, get_unaligned_le64(slot->response));
tstat->stat = mvs_slot_err(mvi, task, slot_idx);
tstat->resp = SAS_TASK_COMPLETE;
goto out;
}
switch (task->task_proto) {
case SAS_PROTOCOL_SSP:
/* hw says status == 0, datapres == 0 */
if (rx_desc & RXQ_GOOD) {
tstat->stat = SAS_SAM_STAT_GOOD;
tstat->resp = SAS_TASK_COMPLETE;
}
/* response frame present */
else if (rx_desc & RXQ_RSP) {
struct ssp_response_iu *iu = slot->response +
sizeof(struct mvs_err_info);
sas_ssp_task_response(mvi->dev, task, iu);
} else
tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;
break;
case SAS_PROTOCOL_SMP: {
struct scatterlist *sg_resp = &task->smp_task.smp_resp;
tstat->stat = SAS_SAM_STAT_GOOD;
to = kmap_atomic(sg_page(sg_resp));
memcpy(to + sg_resp->offset,
slot->response + sizeof(struct mvs_err_info),
sg_dma_len(sg_resp));
kunmap_atomic(to);
break;
}
case SAS_PROTOCOL_SATA:
case SAS_PROTOCOL_STP:
case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: {
tstat->stat = mvs_sata_done(mvi, task, slot_idx, 0);
break;
}
default:
tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;
break;
}
if (!slot->port->port_attached) {
mv_dprintk("port %d has removed.\n", slot->port->sas_port.id);
tstat->stat = SAS_PHY_DOWN;
}
out:
if (mvi_dev && mvi_dev->running_req) {
mvi_dev->running_req--;
if (sas_protocol_ata(task->task_proto) && !mvi_dev->running_req)
mvs_free_reg_set(mvi, mvi_dev);
}
mvs_slot_task_free(mvi, task, slot, slot_idx);
sts = tstat->stat;
spin_unlock(&mvi->lock);
if (task->task_done)
task->task_done(task);
spin_lock(&mvi->lock);
return sts;
}
void mvs_do_release_task(struct mvs_info *mvi,
int phy_no, struct domain_device *dev)
{
u32 slot_idx;
struct mvs_phy *phy;
struct mvs_port *port;
struct mvs_slot_info *slot, *slot2;
phy = &mvi->phy[phy_no];
port = phy->port;
if (!port)
return;
/* clean cmpl queue in case request is already finished */
mvs_int_rx(mvi, false);
list_for_each_entry_safe(slot, slot2, &port->list, entry) {
struct sas_task *task;
slot_idx = (u32) (slot - mvi->slot_info);
task = slot->task;
if (dev && task->dev != dev)
continue;
mv_printk("Release slot [%x] tag[%x], task [%p]:\n",
slot_idx, slot->slot_tag, task);
MVS_CHIP_DISP->command_active(mvi, slot_idx);
mvs_slot_complete(mvi, slot_idx, 1);
}
}
void mvs_release_task(struct mvs_info *mvi,
struct domain_device *dev)
{
int i, phyno[WIDE_PORT_MAX_PHY], num;
num = mvs_find_dev_phyno(dev, phyno);
for (i = 0; i < num; i++)
mvs_do_release_task(mvi, phyno[i], dev);
}
static void mvs_phy_disconnected(struct mvs_phy *phy)
{
phy->phy_attached = 0;
phy->att_dev_info = 0;
phy->att_dev_sas_addr = 0;
}
static void mvs_work_queue(struct work_struct *work)
{
struct delayed_work *dw = container_of(work, struct delayed_work, work);
struct mvs_wq *mwq = container_of(dw, struct mvs_wq, work_q);
struct mvs_info *mvi = mwq->mvi;
unsigned long flags;
u32 phy_no = (unsigned long) mwq->data;
struct mvs_phy *phy = &mvi->phy[phy_no];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
spin_lock_irqsave(&mvi->lock, flags);
if (mwq->handler & PHY_PLUG_EVENT) {
if (phy->phy_event & PHY_PLUG_OUT) {
u32 tmp;
tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no);
phy->phy_event &= ~PHY_PLUG_OUT;
if (!(tmp & PHY_READY_MASK)) {
sas_phy_disconnected(sas_phy);
mvs_phy_disconnected(phy);
sas_notify_phy_event(sas_phy,
PHYE_LOSS_OF_SIGNAL, GFP_ATOMIC);
mv_dprintk("phy%d Removed Device\n", phy_no);
} else {
MVS_CHIP_DISP->detect_porttype(mvi, phy_no);
mvs_update_phyinfo(mvi, phy_no, 1);
mvs_bytes_dmaed(mvi, phy_no, GFP_ATOMIC);
mvs_port_notify_formed(sas_phy, 0);
mv_dprintk("phy%d Attached Device\n", phy_no);
}
}
} else if (mwq->handler & EXP_BRCT_CHG) {
phy->phy_event &= ~EXP_BRCT_CHG;
sas_notify_port_event(sas_phy,
PORTE_BROADCAST_RCVD, GFP_ATOMIC);
mv_dprintk("phy%d Got Broadcast Change\n", phy_no);
}
list_del(&mwq->entry);
spin_unlock_irqrestore(&mvi->lock, flags);
kfree(mwq);
}
static int mvs_handle_event(struct mvs_info *mvi, void *data, int handler)
{
struct mvs_wq *mwq;
int ret = 0;
mwq = kmalloc(sizeof(struct mvs_wq), GFP_ATOMIC);
if (mwq) {
mwq->mvi = mvi;
mwq->data = data;
mwq->handler = handler;
MV_INIT_DELAYED_WORK(&mwq->work_q, mvs_work_queue, mwq);
list_add_tail(&mwq->entry, &mvi->wq_list);
schedule_delayed_work(&mwq->work_q, HZ * 2);
} else
ret = -ENOMEM;
return ret;
}
static void mvs_sig_time_out(struct timer_list *t)
{
struct mvs_phy *phy = from_timer(phy, t, timer);
struct mvs_info *mvi = phy->mvi;
u8 phy_no;
for (phy_no = 0; phy_no < mvi->chip->n_phy; phy_no++) {
if (&mvi->phy[phy_no] == phy) {
mv_dprintk("Get signature time out, reset phy %d\n",
phy_no+mvi->id*mvi->chip->n_phy);
MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_HARD_RESET);
}
}
}
void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events)
{
u32 tmp;
struct mvs_phy *phy = &mvi->phy[phy_no];
phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, phy_no);
MVS_CHIP_DISP->write_port_irq_stat(mvi, phy_no, phy->irq_status);
mv_dprintk("phy %d ctrl sts=0x%08X.\n", phy_no+mvi->id*mvi->chip->n_phy,
MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no));
mv_dprintk("phy %d irq sts = 0x%08X\n", phy_no+mvi->id*mvi->chip->n_phy,
phy->irq_status);
/*
* events is port event now ,
* we need check the interrupt status which belongs to per port.
*/
if (phy->irq_status & PHYEV_DCDR_ERR) {
mv_dprintk("phy %d STP decoding error.\n",
phy_no + mvi->id*mvi->chip->n_phy);
}
if (phy->irq_status & PHYEV_POOF) {
mdelay(500);
if (!(phy->phy_event & PHY_PLUG_OUT)) {
int dev_sata = phy->phy_type & PORT_TYPE_SATA;
int ready;
mvs_do_release_task(mvi, phy_no, NULL);
phy->phy_event |= PHY_PLUG_OUT;
MVS_CHIP_DISP->clear_srs_irq(mvi, 0, 1);
mvs_handle_event(mvi,
(void *)(unsigned long)phy_no,
PHY_PLUG_EVENT);
ready = mvs_is_phy_ready(mvi, phy_no);
if (ready || dev_sata) {
if (MVS_CHIP_DISP->stp_reset)
MVS_CHIP_DISP->stp_reset(mvi,
phy_no);
else
MVS_CHIP_DISP->phy_reset(mvi,
phy_no, MVS_SOFT_RESET);
return;
}
}
}
if (phy->irq_status & PHYEV_COMWAKE) {
tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, phy_no);
MVS_CHIP_DISP->write_port_irq_mask(mvi, phy_no,
tmp | PHYEV_SIG_FIS);
if (phy->timer.function == NULL) {
phy->timer.function = mvs_sig_time_out;
phy->timer.expires = jiffies + 5*HZ;
add_timer(&phy->timer);
}
}
if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) {
phy->phy_status = mvs_is_phy_ready(mvi, phy_no);
mv_dprintk("notify plug in on phy[%d]\n", phy_no);
if (phy->phy_status) {
mdelay(10);
MVS_CHIP_DISP->detect_porttype(mvi, phy_no);
if (phy->phy_type & PORT_TYPE_SATA) {
tmp = MVS_CHIP_DISP->read_port_irq_mask(
mvi, phy_no);
tmp &= ~PHYEV_SIG_FIS;
MVS_CHIP_DISP->write_port_irq_mask(mvi,
phy_no, tmp);
}
mvs_update_phyinfo(mvi, phy_no, 0);
if (phy->phy_type & PORT_TYPE_SAS) {
MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_PHY_TUNE);
mdelay(10);
}
mvs_bytes_dmaed(mvi, phy_no, GFP_ATOMIC);
/* whether driver is going to handle hot plug */
if (phy->phy_event & PHY_PLUG_OUT) {
mvs_port_notify_formed(&phy->sas_phy, 0);
phy->phy_event &= ~PHY_PLUG_OUT;
}
} else {
mv_dprintk("plugin interrupt but phy%d is gone\n",
phy_no + mvi->id*mvi->chip->n_phy);
}
} else if (phy->irq_status & PHYEV_BROAD_CH) {
mv_dprintk("phy %d broadcast change.\n",
phy_no + mvi->id*mvi->chip->n_phy);
mvs_handle_event(mvi, (void *)(unsigned long)phy_no,
EXP_BRCT_CHG);
}
}
int mvs_int_rx(struct mvs_info *mvi, bool self_clear)
{
u32 rx_prod_idx, rx_desc;
bool attn = false;
/* the first dword in the RX ring is special: it contains
* a mirror of the hardware's RX producer index, so that
* we don't have to stall the CPU reading that register.
* The actual RX ring is offset by one dword, due to this.
*/
rx_prod_idx = mvi->rx_cons;
mvi->rx_cons = le32_to_cpu(mvi->rx[0]);
if (mvi->rx_cons == 0xfff) /* h/w hasn't touched RX ring yet */
return 0;
/* The CMPL_Q may come late, read from register and try again
* note: if coalescing is enabled,
* it will need to read from register every time for sure
*/
if (unlikely(mvi->rx_cons == rx_prod_idx))
mvi->rx_cons = MVS_CHIP_DISP->rx_update(mvi) & RX_RING_SZ_MASK;
if (mvi->rx_cons == rx_prod_idx)
return 0;
while (mvi->rx_cons != rx_prod_idx) {
/* increment our internal RX consumer pointer */
rx_prod_idx = (rx_prod_idx + 1) & (MVS_RX_RING_SZ - 1);
rx_desc = le32_to_cpu(mvi->rx[rx_prod_idx + 1]);
if (likely(rx_desc & RXQ_DONE))
mvs_slot_complete(mvi, rx_desc, 0);
if (rx_desc & RXQ_ATTN) {
attn = true;
} else if (rx_desc & RXQ_ERR) {
if (!(rx_desc & RXQ_DONE))
mvs_slot_complete(mvi, rx_desc, 0);
} else if (rx_desc & RXQ_SLOT_RESET) {
mvs_slot_free(mvi, rx_desc);
}
}
if (attn && self_clear)
MVS_CHIP_DISP->int_full(mvi);
return 0;
}
int mvs_gpio_write(struct sas_ha_struct *sha, u8 reg_type, u8 reg_index,
u8 reg_count, u8 *write_data)
{
struct mvs_prv_info *mvs_prv = sha->lldd_ha;
struct mvs_info *mvi = mvs_prv->mvi[0];
if (MVS_CHIP_DISP->gpio_write) {
return MVS_CHIP_DISP->gpio_write(mvs_prv, reg_type,
reg_index, reg_count, write_data);
}
return -ENOSYS;
}
|
linux-master
|
drivers/scsi/mvsas/mv_sas.c
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Marvell 88SE64xx/88SE94xx pci init
*
* Copyright 2007 Red Hat, Inc.
* Copyright 2008 Marvell. <[email protected]>
* Copyright 2009-2011 Marvell. <[email protected]>
*/
#include "mv_sas.h"
int interrupt_coalescing = 0x80;
static struct scsi_transport_template *mvs_stt;
static const struct mvs_chip_info mvs_chips[] = {
[chip_6320] = { 1, 2, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
[chip_6440] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
[chip_6485] = { 1, 8, 0x800, 33, 32, 6, 10, &mvs_64xx_dispatch, },
[chip_9180] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
[chip_9480] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
[chip_9445] = { 1, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
[chip_9485] = { 2, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
[chip_1300] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
[chip_1320] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
};
static const struct attribute_group *mvst_host_groups[];
#define SOC_SAS_NUM 2
static const struct scsi_host_template mvs_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
.queuecommand = sas_queuecommand,
.dma_need_drain = ata_scsi_dma_need_drain,
.target_alloc = sas_target_alloc,
.slave_configure = sas_slave_configure,
.scan_finished = mvs_scan_finished,
.scan_start = mvs_scan_start,
.change_queue_depth = sas_change_queue_depth,
.bios_param = sas_bios_param,
.can_queue = 1,
.this_id = -1,
.sg_tablesize = SG_ALL,
.max_sectors = SCSI_DEFAULT_MAX_SECTORS,
.eh_device_reset_handler = sas_eh_device_reset_handler,
.eh_target_reset_handler = sas_eh_target_reset_handler,
.slave_alloc = sas_slave_alloc,
.target_destroy = sas_target_destroy,
.ioctl = sas_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = sas_ioctl,
#endif
.shost_groups = mvst_host_groups,
.track_queue_depth = 1,
};
static struct sas_domain_function_template mvs_transport_ops = {
.lldd_dev_found = mvs_dev_found,
.lldd_dev_gone = mvs_dev_gone,
.lldd_execute_task = mvs_queue_command,
.lldd_control_phy = mvs_phy_control,
.lldd_abort_task = mvs_abort_task,
.lldd_abort_task_set = sas_abort_task_set,
.lldd_clear_task_set = sas_clear_task_set,
.lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
.lldd_lu_reset = mvs_lu_reset,
.lldd_query_task = mvs_query_task,
.lldd_port_formed = mvs_port_formed,
.lldd_port_deformed = mvs_port_deformed,
.lldd_write_gpio = mvs_gpio_write,
};
static void mvs_phy_init(struct mvs_info *mvi, int phy_id)
{
struct mvs_phy *phy = &mvi->phy[phy_id];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
phy->mvi = mvi;
phy->port = NULL;
timer_setup(&phy->timer, NULL, 0);
sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
sas_phy->iproto = SAS_PROTOCOL_ALL;
sas_phy->tproto = 0;
sas_phy->role = PHY_ROLE_INITIATOR;
sas_phy->oob_mode = OOB_NOT_CONNECTED;
sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
sas_phy->id = phy_id;
sas_phy->sas_addr = &mvi->sas_addr[0];
sas_phy->frame_rcvd = &phy->frame_rcvd[0];
sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata;
sas_phy->lldd_phy = phy;
}
static void mvs_free(struct mvs_info *mvi)
{
struct mvs_wq *mwq;
int slot_nr;
if (!mvi)
return;
if (mvi->flags & MVF_FLAG_SOC)
slot_nr = MVS_SOC_SLOTS;
else
slot_nr = MVS_CHIP_SLOT_SZ;
dma_pool_destroy(mvi->dma_pool);
if (mvi->tx)
dma_free_coherent(mvi->dev,
sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
mvi->tx, mvi->tx_dma);
if (mvi->rx_fis)
dma_free_coherent(mvi->dev, MVS_RX_FISL_SZ,
mvi->rx_fis, mvi->rx_fis_dma);
if (mvi->rx)
dma_free_coherent(mvi->dev,
sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
mvi->rx, mvi->rx_dma);
if (mvi->slot)
dma_free_coherent(mvi->dev,
sizeof(*mvi->slot) * slot_nr,
mvi->slot, mvi->slot_dma);
if (mvi->bulk_buffer)
dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
mvi->bulk_buffer, mvi->bulk_buffer_dma);
if (mvi->bulk_buffer1)
dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
mvi->bulk_buffer1, mvi->bulk_buffer_dma1);
MVS_CHIP_DISP->chip_iounmap(mvi);
if (mvi->shost)
scsi_host_put(mvi->shost);
list_for_each_entry(mwq, &mvi->wq_list, entry)
cancel_delayed_work(&mwq->work_q);
kfree(mvi->rsvd_tags);
kfree(mvi);
}
#ifdef CONFIG_SCSI_MVSAS_TASKLET
static void mvs_tasklet(unsigned long opaque)
{
u32 stat;
u16 core_nr, i = 0;
struct mvs_info *mvi;
struct sas_ha_struct *sha = (struct sas_ha_struct *)opaque;
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
if (unlikely(!mvi))
BUG_ON(1);
stat = MVS_CHIP_DISP->isr_status(mvi, mvi->pdev->irq);
if (!stat)
goto out;
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
MVS_CHIP_DISP->isr(mvi, mvi->pdev->irq, stat);
}
out:
MVS_CHIP_DISP->interrupt_enable(mvi);
}
#endif
static irqreturn_t mvs_interrupt(int irq, void *opaque)
{
u32 stat;
struct mvs_info *mvi;
struct sas_ha_struct *sha = opaque;
#ifndef CONFIG_SCSI_MVSAS_TASKLET
u32 i;
u32 core_nr;
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
#endif
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
if (unlikely(!mvi))
return IRQ_NONE;
#ifdef CONFIG_SCSI_MVSAS_TASKLET
MVS_CHIP_DISP->interrupt_disable(mvi);
#endif
stat = MVS_CHIP_DISP->isr_status(mvi, irq);
if (!stat) {
#ifdef CONFIG_SCSI_MVSAS_TASKLET
MVS_CHIP_DISP->interrupt_enable(mvi);
#endif
return IRQ_NONE;
}
#ifdef CONFIG_SCSI_MVSAS_TASKLET
tasklet_schedule(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
#else
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
MVS_CHIP_DISP->isr(mvi, irq, stat);
}
#endif
return IRQ_HANDLED;
}
static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
{
int i = 0, slot_nr;
char pool_name[32];
if (mvi->flags & MVF_FLAG_SOC)
slot_nr = MVS_SOC_SLOTS;
else
slot_nr = MVS_CHIP_SLOT_SZ;
spin_lock_init(&mvi->lock);
for (i = 0; i < mvi->chip->n_phy; i++) {
mvs_phy_init(mvi, i);
mvi->port[i].wide_port_phymap = 0;
mvi->port[i].port_attached = 0;
INIT_LIST_HEAD(&mvi->port[i].list);
}
for (i = 0; i < MVS_MAX_DEVICES; i++) {
mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED;
mvi->devices[i].dev_type = SAS_PHY_UNUSED;
mvi->devices[i].device_id = i;
mvi->devices[i].dev_status = MVS_DEV_NORMAL;
}
/*
* alloc and init our DMA areas
*/
mvi->tx = dma_alloc_coherent(mvi->dev,
sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
&mvi->tx_dma, GFP_KERNEL);
if (!mvi->tx)
goto err_out;
mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ,
&mvi->rx_fis_dma, GFP_KERNEL);
if (!mvi->rx_fis)
goto err_out;
mvi->rx = dma_alloc_coherent(mvi->dev,
sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
&mvi->rx_dma, GFP_KERNEL);
if (!mvi->rx)
goto err_out;
mvi->rx[0] = cpu_to_le32(0xfff);
mvi->rx_cons = 0xfff;
mvi->slot = dma_alloc_coherent(mvi->dev,
sizeof(*mvi->slot) * slot_nr,
&mvi->slot_dma, GFP_KERNEL);
if (!mvi->slot)
goto err_out;
mvi->bulk_buffer = dma_alloc_coherent(mvi->dev,
TRASH_BUCKET_SIZE,
&mvi->bulk_buffer_dma, GFP_KERNEL);
if (!mvi->bulk_buffer)
goto err_out;
mvi->bulk_buffer1 = dma_alloc_coherent(mvi->dev,
TRASH_BUCKET_SIZE,
&mvi->bulk_buffer_dma1, GFP_KERNEL);
if (!mvi->bulk_buffer1)
goto err_out;
sprintf(pool_name, "%s%d", "mvs_dma_pool", mvi->id);
mvi->dma_pool = dma_pool_create(pool_name, &mvi->pdev->dev,
MVS_SLOT_BUF_SZ, 16, 0);
if (!mvi->dma_pool) {
printk(KERN_DEBUG "failed to create dma pool %s.\n", pool_name);
goto err_out;
}
return 0;
err_out:
return 1;
}
int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex)
{
unsigned long res_start, res_len, res_flag_ex = 0;
struct pci_dev *pdev = mvi->pdev;
if (bar_ex != -1) {
/*
* ioremap main and peripheral registers
*/
res_start = pci_resource_start(pdev, bar_ex);
res_len = pci_resource_len(pdev, bar_ex);
if (!res_start || !res_len)
goto err_out;
res_flag_ex = pci_resource_flags(pdev, bar_ex);
if (res_flag_ex & IORESOURCE_MEM)
mvi->regs_ex = ioremap(res_start, res_len);
else
mvi->regs_ex = (void *)res_start;
if (!mvi->regs_ex)
goto err_out;
}
res_start = pci_resource_start(pdev, bar);
res_len = pci_resource_len(pdev, bar);
if (!res_start || !res_len) {
iounmap(mvi->regs_ex);
mvi->regs_ex = NULL;
goto err_out;
}
mvi->regs = ioremap(res_start, res_len);
if (!mvi->regs) {
if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM))
iounmap(mvi->regs_ex);
mvi->regs_ex = NULL;
goto err_out;
}
return 0;
err_out:
return -1;
}
void mvs_iounmap(void __iomem *regs)
{
iounmap(regs);
}
static struct mvs_info *mvs_pci_alloc(struct pci_dev *pdev,
const struct pci_device_id *ent,
struct Scsi_Host *shost, unsigned int id)
{
struct mvs_info *mvi = NULL;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
mvi = kzalloc(sizeof(*mvi) +
(1L << mvs_chips[ent->driver_data].slot_width) *
sizeof(struct mvs_slot_info), GFP_KERNEL);
if (!mvi)
return NULL;
mvi->pdev = pdev;
mvi->dev = &pdev->dev;
mvi->chip_id = ent->driver_data;
mvi->chip = &mvs_chips[mvi->chip_id];
INIT_LIST_HEAD(&mvi->wq_list);
((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi;
((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy;
mvi->id = id;
mvi->sas = sha;
mvi->shost = shost;
mvi->rsvd_tags = bitmap_zalloc(MVS_RSVD_SLOTS, GFP_KERNEL);
if (!mvi->rsvd_tags)
goto err_out;
if (MVS_CHIP_DISP->chip_ioremap(mvi))
goto err_out;
if (!mvs_alloc(mvi, shost))
return mvi;
err_out:
mvs_free(mvi);
return NULL;
}
static int pci_go_64(struct pci_dev *pdev)
{
int rc;
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (rc) {
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"32-bit DMA enable failed\n");
return rc;
}
}
return rc;
}
static int mvs_prep_sas_ha_init(struct Scsi_Host *shost,
const struct mvs_chip_info *chip_info)
{
int phy_nr, port_nr; unsigned short core_nr;
struct asd_sas_phy **arr_phy;
struct asd_sas_port **arr_port;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
core_nr = chip_info->n_host;
phy_nr = core_nr * chip_info->n_phy;
port_nr = phy_nr;
memset(sha, 0x00, sizeof(struct sas_ha_struct));
arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
if (!arr_phy || !arr_port)
goto exit_free;
sha->sas_phy = arr_phy;
sha->sas_port = arr_port;
sha->shost = shost;
sha->lldd_ha = kzalloc(sizeof(struct mvs_prv_info), GFP_KERNEL);
if (!sha->lldd_ha)
goto exit_free;
((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr;
shost->transportt = mvs_stt;
shost->max_id = MVS_MAX_DEVICES;
shost->max_lun = ~0;
shost->max_channel = 1;
shost->max_cmd_len = 16;
return 0;
exit_free:
kfree(arr_phy);
kfree(arr_port);
return -1;
}
static void mvs_post_sas_ha_init(struct Scsi_Host *shost,
const struct mvs_chip_info *chip_info)
{
int can_queue, i = 0, j = 0;
struct mvs_info *mvi = NULL;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
unsigned short nr_core = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
for (j = 0; j < nr_core; j++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
for (i = 0; i < chip_info->n_phy; i++) {
sha->sas_phy[j * chip_info->n_phy + i] =
&mvi->phy[i].sas_phy;
sha->sas_port[j * chip_info->n_phy + i] =
&mvi->port[i].sas_port;
}
}
sha->sas_ha_name = DRV_NAME;
sha->dev = mvi->dev;
sha->sas_addr = &mvi->sas_addr[0];
sha->num_phys = nr_core * chip_info->n_phy;
if (mvi->flags & MVF_FLAG_SOC)
can_queue = MVS_SOC_CAN_QUEUE;
else
can_queue = MVS_CHIP_SLOT_SZ;
can_queue -= MVS_RSVD_SLOTS;
shost->sg_tablesize = min_t(u16, SG_ALL, MVS_MAX_SG);
shost->can_queue = can_queue;
mvi->shost->cmd_per_lun = MVS_QUEUE_SIZE;
sha->shost = mvi->shost;
}
static void mvs_init_sas_add(struct mvs_info *mvi)
{
u8 i;
for (i = 0; i < mvi->chip->n_phy; i++) {
mvi->phy[i].dev_sas_addr = 0x5005043011ab0000ULL;
mvi->phy[i].dev_sas_addr =
cpu_to_be64((u64)(*(u64 *)&mvi->phy[i].dev_sas_addr));
}
memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE);
}
static int mvs_pci_init(struct pci_dev *pdev, const struct pci_device_id *ent)
{
unsigned int rc, nhost = 0;
struct mvs_info *mvi;
irq_handler_t irq_handler = mvs_interrupt;
struct Scsi_Host *shost = NULL;
const struct mvs_chip_info *chip;
dev_printk(KERN_INFO, &pdev->dev,
"mvsas: driver version %s\n", DRV_VERSION);
rc = pci_enable_device(pdev);
if (rc)
goto err_out_enable;
pci_set_master(pdev);
rc = pci_request_regions(pdev, DRV_NAME);
if (rc)
goto err_out_disable;
rc = pci_go_64(pdev);
if (rc)
goto err_out_regions;
shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
if (!shost) {
rc = -ENOMEM;
goto err_out_regions;
}
chip = &mvs_chips[ent->driver_data];
SHOST_TO_SAS_HA(shost) =
kcalloc(1, sizeof(struct sas_ha_struct), GFP_KERNEL);
if (!SHOST_TO_SAS_HA(shost)) {
scsi_host_put(shost);
rc = -ENOMEM;
goto err_out_regions;
}
rc = mvs_prep_sas_ha_init(shost, chip);
if (rc) {
scsi_host_put(shost);
rc = -ENOMEM;
goto err_out_regions;
}
pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
do {
mvi = mvs_pci_alloc(pdev, ent, shost, nhost);
if (!mvi) {
rc = -ENOMEM;
goto err_out_regions;
}
memset(&mvi->hba_info_param, 0xFF,
sizeof(struct hba_info_page));
mvs_init_sas_add(mvi);
mvi->instance = nhost;
rc = MVS_CHIP_DISP->chip_init(mvi);
if (rc) {
mvs_free(mvi);
goto err_out_regions;
}
nhost++;
} while (nhost < chip->n_host);
#ifdef CONFIG_SCSI_MVSAS_TASKLET
{
struct mvs_prv_info *mpi = SHOST_TO_SAS_HA(shost)->lldd_ha;
tasklet_init(&(mpi->mv_tasklet), mvs_tasklet,
(unsigned long)SHOST_TO_SAS_HA(shost));
}
#endif
mvs_post_sas_ha_init(shost, chip);
rc = scsi_add_host(shost, &pdev->dev);
if (rc)
goto err_out_shost;
rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
if (rc)
goto err_out_shost;
rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED,
DRV_NAME, SHOST_TO_SAS_HA(shost));
if (rc)
goto err_not_sas;
MVS_CHIP_DISP->interrupt_enable(mvi);
scsi_scan_host(mvi->shost);
return 0;
err_not_sas:
sas_unregister_ha(SHOST_TO_SAS_HA(shost));
err_out_shost:
scsi_remove_host(mvi->shost);
err_out_regions:
pci_release_regions(pdev);
err_out_disable:
pci_disable_device(pdev);
err_out_enable:
return rc;
}
static void mvs_pci_remove(struct pci_dev *pdev)
{
unsigned short core_nr, i = 0;
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
struct mvs_info *mvi = NULL;
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
#ifdef CONFIG_SCSI_MVSAS_TASKLET
tasklet_kill(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
#endif
sas_unregister_ha(sha);
sas_remove_host(mvi->shost);
MVS_CHIP_DISP->interrupt_disable(mvi);
free_irq(mvi->pdev->irq, sha);
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
mvs_free(mvi);
}
kfree(sha->sas_phy);
kfree(sha->sas_port);
kfree(sha);
pci_release_regions(pdev);
pci_disable_device(pdev);
return;
}
static struct pci_device_id mvs_pci_table[] = {
{ PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
{ PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
{
.vendor = PCI_VENDOR_ID_MARVELL,
.device = 0x6440,
.subvendor = PCI_ANY_ID,
.subdevice = 0x6480,
.class = 0,
.class_mask = 0,
.driver_data = chip_6485,
},
{ PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
{ PCI_VDEVICE(MARVELL, 0x6485), chip_6485 },
{ PCI_VDEVICE(MARVELL, 0x9480), chip_9480 },
{ PCI_VDEVICE(MARVELL, 0x9180), chip_9180 },
{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
{ PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
{ PCI_VDEVICE(TTI, 0x2640), chip_6440 },
{ PCI_VDEVICE(TTI, 0x2710), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2720), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2721), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2722), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2740), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2744), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2760), chip_9480 },
{
.vendor = PCI_VENDOR_ID_MARVELL_EXT,
.device = 0x9480,
.subvendor = PCI_ANY_ID,
.subdevice = 0x9480,
.class = 0,
.class_mask = 0,
.driver_data = chip_9480,
},
{
.vendor = PCI_VENDOR_ID_MARVELL_EXT,
.device = 0x9445,
.subvendor = PCI_ANY_ID,
.subdevice = 0x9480,
.class = 0,
.class_mask = 0,
.driver_data = chip_9445,
},
{ PCI_VDEVICE(MARVELL_EXT, 0x9485), chip_9485 }, /* Marvell 9480/9485 (any vendor/model) */
{ PCI_VDEVICE(OCZ, 0x1021), chip_9485}, /* OCZ RevoDrive3 */
{ PCI_VDEVICE(OCZ, 0x1022), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1040), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1041), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1042), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1043), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1044), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1080), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1083), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ PCI_VDEVICE(OCZ, 0x1084), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */
{ } /* terminate list */
};
static struct pci_driver mvs_pci_driver = {
.name = DRV_NAME,
.id_table = mvs_pci_table,
.probe = mvs_pci_init,
.remove = mvs_pci_remove,
};
static ssize_t driver_version_show(struct device *cdev,
struct device_attribute *attr, char *buffer)
{
return sysfs_emit(buffer, "%s\n", DRV_VERSION);
}
static DEVICE_ATTR_RO(driver_version);
static ssize_t interrupt_coalescing_store(struct device *cdev,
struct device_attribute *attr,
const char *buffer, size_t size)
{
unsigned int val = 0;
struct mvs_info *mvi = NULL;
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
u8 i, core_nr;
if (buffer == NULL)
return size;
if (sscanf(buffer, "%u", &val) != 1)
return -EINVAL;
if (val >= 0x10000) {
mv_dprintk("interrupt coalescing timer %d us is"
"too long\n", val);
return strlen(buffer);
}
interrupt_coalescing = val;
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
if (unlikely(!mvi))
return -EINVAL;
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
if (MVS_CHIP_DISP->tune_interrupt)
MVS_CHIP_DISP->tune_interrupt(mvi,
interrupt_coalescing);
}
mv_dprintk("set interrupt coalescing time to %d us\n",
interrupt_coalescing);
return strlen(buffer);
}
static ssize_t interrupt_coalescing_show(struct device *cdev,
struct device_attribute *attr, char *buffer)
{
return sysfs_emit(buffer, "%d\n", interrupt_coalescing);
}
static DEVICE_ATTR_RW(interrupt_coalescing);
static int __init mvs_init(void)
{
int rc;
mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
if (!mvs_stt)
return -ENOMEM;
rc = pci_register_driver(&mvs_pci_driver);
if (rc)
goto err_out;
return 0;
err_out:
sas_release_transport(mvs_stt);
return rc;
}
static void __exit mvs_exit(void)
{
pci_unregister_driver(&mvs_pci_driver);
sas_release_transport(mvs_stt);
}
static struct attribute *mvst_host_attrs[] = {
&dev_attr_driver_version.attr,
&dev_attr_interrupt_coalescing.attr,
NULL,
};
ATTRIBUTE_GROUPS(mvst_host);
module_init(mvs_init);
module_exit(mvs_exit);
MODULE_AUTHOR("Jeff Garzik <[email protected]>");
MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE("GPL");
#ifdef CONFIG_PCI
MODULE_DEVICE_TABLE(pci, mvs_pci_table);
#endif
|
linux-master
|
drivers/scsi/mvsas/mv_init.c
|
/*
* libcxgbi.c: Chelsio common library for T3/T4 iSCSI driver.
*
* Copyright (c) 2010-2015 Chelsio Communications, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Karen Xie ([email protected])
* Written by: Rakesh Ranjan ([email protected])
*/
#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
#include <linux/skbuff.h>
#include <linux/crypto.h>
#include <linux/scatterlist.h>
#include <linux/pci.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_host.h>
#include <linux/if_vlan.h>
#include <linux/inet.h>
#include <net/dst.h>
#include <net/route.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
#include <net/addrconf.h>
#include <linux/inetdevice.h> /* ip_dev_find */
#include <linux/module.h>
#include <net/tcp.h>
static unsigned int dbg_level;
#include "libcxgbi.h"
#define DRV_MODULE_NAME "libcxgbi"
#define DRV_MODULE_DESC "Chelsio iSCSI driver library"
#define DRV_MODULE_VERSION "0.9.1-ko"
#define DRV_MODULE_RELDATE "Apr. 2015"
static char version[] =
DRV_MODULE_DESC " " DRV_MODULE_NAME
" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Chelsio Communications, Inc.");
MODULE_DESCRIPTION(DRV_MODULE_DESC);
MODULE_VERSION(DRV_MODULE_VERSION);
MODULE_LICENSE("GPL");
module_param(dbg_level, uint, 0644);
MODULE_PARM_DESC(dbg_level, "libiscsi debug level (default=0)");
/*
* cxgbi device management
* maintains a list of the cxgbi devices
*/
static LIST_HEAD(cdev_list);
static DEFINE_MUTEX(cdev_mutex);
static LIST_HEAD(cdev_rcu_list);
static DEFINE_SPINLOCK(cdev_rcu_lock);
static inline void cxgbi_decode_sw_tag(u32 sw_tag, int *idx, int *age)
{
if (age)
*age = sw_tag & 0x7FFF;
if (idx)
*idx = (sw_tag >> 16) & 0x7FFF;
}
int cxgbi_device_portmap_create(struct cxgbi_device *cdev, unsigned int base,
unsigned int max_conn)
{
struct cxgbi_ports_map *pmap = &cdev->pmap;
pmap->port_csk = kvzalloc(array_size(max_conn,
sizeof(struct cxgbi_sock *)),
GFP_KERNEL | __GFP_NOWARN);
if (!pmap->port_csk) {
pr_warn("cdev 0x%p, portmap OOM %u.\n", cdev, max_conn);
return -ENOMEM;
}
pmap->max_connect = max_conn;
pmap->sport_base = base;
spin_lock_init(&pmap->lock);
return 0;
}
EXPORT_SYMBOL_GPL(cxgbi_device_portmap_create);
void cxgbi_device_portmap_cleanup(struct cxgbi_device *cdev)
{
struct cxgbi_ports_map *pmap = &cdev->pmap;
struct cxgbi_sock *csk;
int i;
for (i = 0; i < pmap->max_connect; i++) {
if (pmap->port_csk[i]) {
csk = pmap->port_csk[i];
pmap->port_csk[i] = NULL;
log_debug(1 << CXGBI_DBG_SOCK,
"csk 0x%p, cdev 0x%p, offload down.\n",
csk, cdev);
spin_lock_bh(&csk->lock);
cxgbi_sock_set_flag(csk, CTPF_OFFLOAD_DOWN);
cxgbi_sock_closed(csk);
spin_unlock_bh(&csk->lock);
cxgbi_sock_put(csk);
}
}
}
EXPORT_SYMBOL_GPL(cxgbi_device_portmap_cleanup);
static inline void cxgbi_device_destroy(struct cxgbi_device *cdev)
{
log_debug(1 << CXGBI_DBG_DEV,
"cdev 0x%p, p# %u.\n", cdev, cdev->nports);
cxgbi_hbas_remove(cdev);
cxgbi_device_portmap_cleanup(cdev);
if (cdev->cdev2ppm)
cxgbi_ppm_release(cdev->cdev2ppm(cdev));
if (cdev->pmap.max_connect)
kvfree(cdev->pmap.port_csk);
kfree(cdev);
}
struct cxgbi_device *cxgbi_device_register(unsigned int extra,
unsigned int nports)
{
struct cxgbi_device *cdev;
cdev = kzalloc(sizeof(*cdev) + extra + nports *
(sizeof(struct cxgbi_hba *) +
sizeof(struct net_device *)),
GFP_KERNEL);
if (!cdev) {
pr_warn("nport %d, OOM.\n", nports);
return NULL;
}
cdev->ports = (struct net_device **)(cdev + 1);
cdev->hbas = (struct cxgbi_hba **)(((char*)cdev->ports) + nports *
sizeof(struct net_device *));
if (extra)
cdev->dd_data = ((char *)cdev->hbas) +
nports * sizeof(struct cxgbi_hba *);
spin_lock_init(&cdev->pmap.lock);
mutex_lock(&cdev_mutex);
list_add_tail(&cdev->list_head, &cdev_list);
mutex_unlock(&cdev_mutex);
spin_lock(&cdev_rcu_lock);
list_add_tail_rcu(&cdev->rcu_node, &cdev_rcu_list);
spin_unlock(&cdev_rcu_lock);
log_debug(1 << CXGBI_DBG_DEV,
"cdev 0x%p, p# %u.\n", cdev, nports);
return cdev;
}
EXPORT_SYMBOL_GPL(cxgbi_device_register);
void cxgbi_device_unregister(struct cxgbi_device *cdev)
{
log_debug(1 << CXGBI_DBG_DEV,
"cdev 0x%p, p# %u,%s.\n",
cdev, cdev->nports, cdev->nports ? cdev->ports[0]->name : "");
mutex_lock(&cdev_mutex);
list_del(&cdev->list_head);
mutex_unlock(&cdev_mutex);
spin_lock(&cdev_rcu_lock);
list_del_rcu(&cdev->rcu_node);
spin_unlock(&cdev_rcu_lock);
synchronize_rcu();
cxgbi_device_destroy(cdev);
}
EXPORT_SYMBOL_GPL(cxgbi_device_unregister);
void cxgbi_device_unregister_all(unsigned int flag)
{
struct cxgbi_device *cdev, *tmp;
mutex_lock(&cdev_mutex);
list_for_each_entry_safe(cdev, tmp, &cdev_list, list_head) {
if ((cdev->flags & flag) == flag) {
mutex_unlock(&cdev_mutex);
cxgbi_device_unregister(cdev);
mutex_lock(&cdev_mutex);
}
}
mutex_unlock(&cdev_mutex);
}
EXPORT_SYMBOL_GPL(cxgbi_device_unregister_all);
struct cxgbi_device *cxgbi_device_find_by_lldev(void *lldev)
{
struct cxgbi_device *cdev, *tmp;
mutex_lock(&cdev_mutex);
list_for_each_entry_safe(cdev, tmp, &cdev_list, list_head) {
if (cdev->lldev == lldev) {
mutex_unlock(&cdev_mutex);
return cdev;
}
}
mutex_unlock(&cdev_mutex);
log_debug(1 << CXGBI_DBG_DEV,
"lldev 0x%p, NO match found.\n", lldev);
return NULL;
}
EXPORT_SYMBOL_GPL(cxgbi_device_find_by_lldev);
struct cxgbi_device *cxgbi_device_find_by_netdev(struct net_device *ndev,
int *port)
{
struct net_device *vdev = NULL;
struct cxgbi_device *cdev, *tmp;
int i;
if (is_vlan_dev(ndev)) {
vdev = ndev;
ndev = vlan_dev_real_dev(ndev);
log_debug(1 << CXGBI_DBG_DEV,
"vlan dev %s -> %s.\n", vdev->name, ndev->name);
}
mutex_lock(&cdev_mutex);
list_for_each_entry_safe(cdev, tmp, &cdev_list, list_head) {
for (i = 0; i < cdev->nports; i++) {
if (ndev == cdev->ports[i]) {
cdev->hbas[i]->vdev = vdev;
mutex_unlock(&cdev_mutex);
if (port)
*port = i;
return cdev;
}
}
}
mutex_unlock(&cdev_mutex);
log_debug(1 << CXGBI_DBG_DEV,
"ndev 0x%p, %s, NO match found.\n", ndev, ndev->name);
return NULL;
}
EXPORT_SYMBOL_GPL(cxgbi_device_find_by_netdev);
struct cxgbi_device *cxgbi_device_find_by_netdev_rcu(struct net_device *ndev,
int *port)
{
struct net_device *vdev = NULL;
struct cxgbi_device *cdev;
int i;
if (is_vlan_dev(ndev)) {
vdev = ndev;
ndev = vlan_dev_real_dev(ndev);
pr_info("vlan dev %s -> %s.\n", vdev->name, ndev->name);
}
rcu_read_lock();
list_for_each_entry_rcu(cdev, &cdev_rcu_list, rcu_node) {
for (i = 0; i < cdev->nports; i++) {
if (ndev == cdev->ports[i]) {
cdev->hbas[i]->vdev = vdev;
rcu_read_unlock();
if (port)
*port = i;
return cdev;
}
}
}
rcu_read_unlock();
log_debug(1 << CXGBI_DBG_DEV,
"ndev 0x%p, %s, NO match found.\n", ndev, ndev->name);
return NULL;
}
EXPORT_SYMBOL_GPL(cxgbi_device_find_by_netdev_rcu);
static struct cxgbi_device *cxgbi_device_find_by_mac(struct net_device *ndev,
int *port)
{
struct net_device *vdev = NULL;
struct cxgbi_device *cdev, *tmp;
int i;
if (is_vlan_dev(ndev)) {
vdev = ndev;
ndev = vlan_dev_real_dev(ndev);
pr_info("vlan dev %s -> %s.\n", vdev->name, ndev->name);
}
mutex_lock(&cdev_mutex);
list_for_each_entry_safe(cdev, tmp, &cdev_list, list_head) {
for (i = 0; i < cdev->nports; i++) {
if (!memcmp(ndev->dev_addr, cdev->ports[i]->dev_addr,
MAX_ADDR_LEN)) {
cdev->hbas[i]->vdev = vdev;
mutex_unlock(&cdev_mutex);
if (port)
*port = i;
return cdev;
}
}
}
mutex_unlock(&cdev_mutex);
log_debug(1 << CXGBI_DBG_DEV,
"ndev 0x%p, %s, NO match mac found.\n",
ndev, ndev->name);
return NULL;
}
void cxgbi_hbas_remove(struct cxgbi_device *cdev)
{
int i;
struct cxgbi_hba *chba;
log_debug(1 << CXGBI_DBG_DEV,
"cdev 0x%p, p#%u.\n", cdev, cdev->nports);
for (i = 0; i < cdev->nports; i++) {
chba = cdev->hbas[i];
if (chba) {
cdev->hbas[i] = NULL;
iscsi_host_remove(chba->shost, false);
pci_dev_put(cdev->pdev);
iscsi_host_free(chba->shost);
}
}
}
EXPORT_SYMBOL_GPL(cxgbi_hbas_remove);
int cxgbi_hbas_add(struct cxgbi_device *cdev, u64 max_lun,
unsigned int max_conns, const struct scsi_host_template *sht,
struct scsi_transport_template *stt)
{
struct cxgbi_hba *chba;
struct Scsi_Host *shost;
int i, err;
log_debug(1 << CXGBI_DBG_DEV, "cdev 0x%p, p#%u.\n", cdev, cdev->nports);
for (i = 0; i < cdev->nports; i++) {
shost = iscsi_host_alloc(sht, sizeof(*chba), 1);
if (!shost) {
pr_info("0x%p, p%d, %s, host alloc failed.\n",
cdev, i, cdev->ports[i]->name);
err = -ENOMEM;
goto err_out;
}
shost->transportt = stt;
shost->max_lun = max_lun;
shost->max_id = max_conns - 1;
shost->max_channel = 0;
shost->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE;
chba = iscsi_host_priv(shost);
chba->cdev = cdev;
chba->ndev = cdev->ports[i];
chba->shost = shost;
shost->can_queue = sht->can_queue - ISCSI_MGMT_CMDS_MAX;
log_debug(1 << CXGBI_DBG_DEV,
"cdev 0x%p, p#%d %s: chba 0x%p.\n",
cdev, i, cdev->ports[i]->name, chba);
pci_dev_get(cdev->pdev);
err = iscsi_host_add(shost, &cdev->pdev->dev);
if (err) {
pr_info("cdev 0x%p, p#%d %s, host add failed.\n",
cdev, i, cdev->ports[i]->name);
pci_dev_put(cdev->pdev);
scsi_host_put(shost);
goto err_out;
}
cdev->hbas[i] = chba;
}
return 0;
err_out:
cxgbi_hbas_remove(cdev);
return err;
}
EXPORT_SYMBOL_GPL(cxgbi_hbas_add);
/*
* iSCSI offload
*
* - source port management
* To find a free source port in the port allocation map we use a very simple
* rotor scheme to look for the next free port.
*
* If a source port has been specified make sure that it doesn't collide with
* our normal source port allocation map. If it's outside the range of our
* allocation/deallocation scheme just let them use it.
*
* If the source port is outside our allocation range, the caller is
* responsible for keeping track of their port usage.
*/
static struct cxgbi_sock *find_sock_on_port(struct cxgbi_device *cdev,
unsigned char port_id)
{
struct cxgbi_ports_map *pmap = &cdev->pmap;
unsigned int i;
unsigned int used;
if (!pmap->max_connect || !pmap->used)
return NULL;
spin_lock_bh(&pmap->lock);
used = pmap->used;
for (i = 0; used && i < pmap->max_connect; i++) {
struct cxgbi_sock *csk = pmap->port_csk[i];
if (csk) {
if (csk->port_id == port_id) {
spin_unlock_bh(&pmap->lock);
return csk;
}
used--;
}
}
spin_unlock_bh(&pmap->lock);
return NULL;
}
static int sock_get_port(struct cxgbi_sock *csk)
{
struct cxgbi_device *cdev = csk->cdev;
struct cxgbi_ports_map *pmap = &cdev->pmap;
unsigned int start;
int idx;
__be16 *port;
if (!pmap->max_connect) {
pr_err("cdev 0x%p, p#%u %s, NO port map.\n",
cdev, csk->port_id, cdev->ports[csk->port_id]->name);
return -EADDRNOTAVAIL;
}
if (csk->csk_family == AF_INET)
port = &csk->saddr.sin_port;
else /* ipv6 */
port = &csk->saddr6.sin6_port;
if (*port) {
pr_err("source port NON-ZERO %u.\n",
ntohs(*port));
return -EADDRINUSE;
}
spin_lock_bh(&pmap->lock);
if (pmap->used >= pmap->max_connect) {
spin_unlock_bh(&pmap->lock);
pr_info("cdev 0x%p, p#%u %s, ALL ports used.\n",
cdev, csk->port_id, cdev->ports[csk->port_id]->name);
return -EADDRNOTAVAIL;
}
start = idx = pmap->next;
do {
if (++idx >= pmap->max_connect)
idx = 0;
if (!pmap->port_csk[idx]) {
pmap->used++;
*port = htons(pmap->sport_base + idx);
pmap->next = idx;
pmap->port_csk[idx] = csk;
spin_unlock_bh(&pmap->lock);
cxgbi_sock_get(csk);
log_debug(1 << CXGBI_DBG_SOCK,
"cdev 0x%p, p#%u %s, p %u, %u.\n",
cdev, csk->port_id,
cdev->ports[csk->port_id]->name,
pmap->sport_base + idx, pmap->next);
return 0;
}
} while (idx != start);
spin_unlock_bh(&pmap->lock);
/* should not happen */
pr_warn("cdev 0x%p, p#%u %s, next %u?\n",
cdev, csk->port_id, cdev->ports[csk->port_id]->name,
pmap->next);
return -EADDRNOTAVAIL;
}
static void sock_put_port(struct cxgbi_sock *csk)
{
struct cxgbi_device *cdev = csk->cdev;
struct cxgbi_ports_map *pmap = &cdev->pmap;
__be16 *port;
if (csk->csk_family == AF_INET)
port = &csk->saddr.sin_port;
else /* ipv6 */
port = &csk->saddr6.sin6_port;
if (*port) {
int idx = ntohs(*port) - pmap->sport_base;
*port = 0;
if (idx < 0 || idx >= pmap->max_connect) {
pr_err("cdev 0x%p, p#%u %s, port %u OOR.\n",
cdev, csk->port_id,
cdev->ports[csk->port_id]->name,
ntohs(*port));
return;
}
spin_lock_bh(&pmap->lock);
pmap->port_csk[idx] = NULL;
pmap->used--;
spin_unlock_bh(&pmap->lock);
log_debug(1 << CXGBI_DBG_SOCK,
"cdev 0x%p, p#%u %s, release %u.\n",
cdev, csk->port_id, cdev->ports[csk->port_id]->name,
pmap->sport_base + idx);
cxgbi_sock_put(csk);
}
}
/*
* iscsi tcp connection
*/
void cxgbi_sock_free_cpl_skbs(struct cxgbi_sock *csk)
{
if (csk->cpl_close) {
kfree_skb(csk->cpl_close);
csk->cpl_close = NULL;
}
if (csk->cpl_abort_req) {
kfree_skb(csk->cpl_abort_req);
csk->cpl_abort_req = NULL;
}
if (csk->cpl_abort_rpl) {
kfree_skb(csk->cpl_abort_rpl);
csk->cpl_abort_rpl = NULL;
}
}
EXPORT_SYMBOL_GPL(cxgbi_sock_free_cpl_skbs);
static struct cxgbi_sock *cxgbi_sock_create(struct cxgbi_device *cdev)
{
struct cxgbi_sock *csk = kzalloc(sizeof(*csk), GFP_NOIO);
if (!csk) {
pr_info("alloc csk %zu failed.\n", sizeof(*csk));
return NULL;
}
if (cdev->csk_alloc_cpls(csk) < 0) {
pr_info("csk 0x%p, alloc cpls failed.\n", csk);
kfree(csk);
return NULL;
}
spin_lock_init(&csk->lock);
kref_init(&csk->refcnt);
skb_queue_head_init(&csk->receive_queue);
skb_queue_head_init(&csk->write_queue);
timer_setup(&csk->retry_timer, NULL, 0);
init_completion(&csk->cmpl);
rwlock_init(&csk->callback_lock);
csk->cdev = cdev;
csk->flags = 0;
cxgbi_sock_set_state(csk, CTP_CLOSED);
log_debug(1 << CXGBI_DBG_SOCK, "cdev 0x%p, new csk 0x%p.\n", cdev, csk);
return csk;
}
static struct rtable *find_route_ipv4(struct flowi4 *fl4,
__be32 saddr, __be32 daddr,
__be16 sport, __be16 dport, u8 tos,
int ifindex)
{
struct rtable *rt;
rt = ip_route_output_ports(&init_net, fl4, NULL, daddr, saddr,
dport, sport, IPPROTO_TCP, tos, ifindex);
if (IS_ERR(rt))
return NULL;
return rt;
}
static struct cxgbi_sock *
cxgbi_check_route(struct sockaddr *dst_addr, int ifindex)
{
struct sockaddr_in *daddr = (struct sockaddr_in *)dst_addr;
struct dst_entry *dst;
struct net_device *ndev;
struct cxgbi_device *cdev;
struct rtable *rt = NULL;
struct neighbour *n;
struct flowi4 fl4;
struct cxgbi_sock *csk = NULL;
unsigned int mtu = 0;
int port = 0xFFFF;
int err = 0;
rt = find_route_ipv4(&fl4, 0, daddr->sin_addr.s_addr, 0,
daddr->sin_port, 0, ifindex);
if (!rt) {
pr_info("no route to ipv4 0x%x, port %u.\n",
be32_to_cpu(daddr->sin_addr.s_addr),
be16_to_cpu(daddr->sin_port));
err = -ENETUNREACH;
goto err_out;
}
dst = &rt->dst;
n = dst_neigh_lookup(dst, &daddr->sin_addr.s_addr);
if (!n) {
err = -ENODEV;
goto rel_rt;
}
ndev = n->dev;
if (rt->rt_flags & (RTCF_MULTICAST | RTCF_BROADCAST)) {
pr_info("multi-cast route %pI4, port %u, dev %s.\n",
&daddr->sin_addr.s_addr, ntohs(daddr->sin_port),
ndev->name);
err = -ENETUNREACH;
goto rel_neigh;
}
if (ndev->flags & IFF_LOOPBACK) {
ndev = ip_dev_find(&init_net, daddr->sin_addr.s_addr);
if (!ndev) {
err = -ENETUNREACH;
goto rel_neigh;
}
mtu = ndev->mtu;
pr_info("rt dev %s, loopback -> %s, mtu %u.\n",
n->dev->name, ndev->name, mtu);
}
if (!(ndev->flags & IFF_UP) || !netif_carrier_ok(ndev)) {
pr_info("%s interface not up.\n", ndev->name);
err = -ENETDOWN;
goto rel_neigh;
}
cdev = cxgbi_device_find_by_netdev(ndev, &port);
if (!cdev)
cdev = cxgbi_device_find_by_mac(ndev, &port);
if (!cdev) {
pr_info("dst %pI4, %s, NOT cxgbi device.\n",
&daddr->sin_addr.s_addr, ndev->name);
err = -ENETUNREACH;
goto rel_neigh;
}
log_debug(1 << CXGBI_DBG_SOCK,
"route to %pI4 :%u, ndev p#%d,%s, cdev 0x%p.\n",
&daddr->sin_addr.s_addr, ntohs(daddr->sin_port),
port, ndev->name, cdev);
csk = cxgbi_sock_create(cdev);
if (!csk) {
err = -ENOMEM;
goto rel_neigh;
}
csk->cdev = cdev;
csk->port_id = port;
csk->mtu = mtu;
csk->dst = dst;
csk->csk_family = AF_INET;
csk->daddr.sin_addr.s_addr = daddr->sin_addr.s_addr;
csk->daddr.sin_port = daddr->sin_port;
csk->daddr.sin_family = daddr->sin_family;
csk->saddr.sin_family = daddr->sin_family;
csk->saddr.sin_addr.s_addr = fl4.saddr;
neigh_release(n);
return csk;
rel_neigh:
neigh_release(n);
rel_rt:
ip_rt_put(rt);
err_out:
return ERR_PTR(err);
}
#if IS_ENABLED(CONFIG_IPV6)
static struct rt6_info *find_route_ipv6(const struct in6_addr *saddr,
const struct in6_addr *daddr,
int ifindex)
{
struct flowi6 fl;
memset(&fl, 0, sizeof(fl));
fl.flowi6_oif = ifindex;
if (saddr)
memcpy(&fl.saddr, saddr, sizeof(struct in6_addr));
if (daddr)
memcpy(&fl.daddr, daddr, sizeof(struct in6_addr));
return (struct rt6_info *)ip6_route_output(&init_net, NULL, &fl);
}
static struct cxgbi_sock *
cxgbi_check_route6(struct sockaddr *dst_addr, int ifindex)
{
struct sockaddr_in6 *daddr6 = (struct sockaddr_in6 *)dst_addr;
struct dst_entry *dst;
struct net_device *ndev;
struct cxgbi_device *cdev;
struct rt6_info *rt = NULL;
struct neighbour *n;
struct in6_addr pref_saddr;
struct cxgbi_sock *csk = NULL;
unsigned int mtu = 0;
int port = 0xFFFF;
int err = 0;
rt = find_route_ipv6(NULL, &daddr6->sin6_addr, ifindex);
if (!rt) {
pr_info("no route to ipv6 %pI6 port %u\n",
daddr6->sin6_addr.s6_addr,
be16_to_cpu(daddr6->sin6_port));
err = -ENETUNREACH;
goto err_out;
}
dst = &rt->dst;
n = dst_neigh_lookup(dst, &daddr6->sin6_addr);
if (!n) {
pr_info("%pI6, port %u, dst no neighbour.\n",
daddr6->sin6_addr.s6_addr,
be16_to_cpu(daddr6->sin6_port));
err = -ENETUNREACH;
goto rel_rt;
}
ndev = n->dev;
if (!(ndev->flags & IFF_UP) || !netif_carrier_ok(ndev)) {
pr_info("%s interface not up.\n", ndev->name);
err = -ENETDOWN;
goto rel_rt;
}
if (ipv6_addr_is_multicast(&daddr6->sin6_addr)) {
pr_info("multi-cast route %pI6 port %u, dev %s.\n",
daddr6->sin6_addr.s6_addr,
ntohs(daddr6->sin6_port), ndev->name);
err = -ENETUNREACH;
goto rel_rt;
}
cdev = cxgbi_device_find_by_netdev(ndev, &port);
if (!cdev)
cdev = cxgbi_device_find_by_mac(ndev, &port);
if (!cdev) {
pr_info("dst %pI6 %s, NOT cxgbi device.\n",
daddr6->sin6_addr.s6_addr, ndev->name);
err = -ENETUNREACH;
goto rel_rt;
}
log_debug(1 << CXGBI_DBG_SOCK,
"route to %pI6 :%u, ndev p#%d,%s, cdev 0x%p.\n",
daddr6->sin6_addr.s6_addr, ntohs(daddr6->sin6_port), port,
ndev->name, cdev);
csk = cxgbi_sock_create(cdev);
if (!csk) {
err = -ENOMEM;
goto rel_rt;
}
csk->cdev = cdev;
csk->port_id = port;
csk->mtu = mtu;
csk->dst = dst;
rt6_get_prefsrc(rt, &pref_saddr);
if (ipv6_addr_any(&pref_saddr)) {
struct inet6_dev *idev = ip6_dst_idev((struct dst_entry *)rt);
err = ipv6_dev_get_saddr(&init_net, idev ? idev->dev : NULL,
&daddr6->sin6_addr, 0, &pref_saddr);
if (err) {
pr_info("failed to get source address to reach %pI6\n",
&daddr6->sin6_addr);
goto rel_rt;
}
}
csk->csk_family = AF_INET6;
csk->daddr6.sin6_addr = daddr6->sin6_addr;
csk->daddr6.sin6_port = daddr6->sin6_port;
csk->daddr6.sin6_family = daddr6->sin6_family;
csk->saddr6.sin6_family = daddr6->sin6_family;
csk->saddr6.sin6_addr = pref_saddr;
neigh_release(n);
return csk;
rel_rt:
if (n)
neigh_release(n);
ip6_rt_put(rt);
if (csk)
cxgbi_sock_closed(csk);
err_out:
return ERR_PTR(err);
}
#endif /* IS_ENABLED(CONFIG_IPV6) */
void cxgbi_sock_established(struct cxgbi_sock *csk, unsigned int snd_isn,
unsigned int opt)
{
csk->write_seq = csk->snd_nxt = csk->snd_una = snd_isn;
dst_confirm(csk->dst);
smp_mb();
cxgbi_sock_set_state(csk, CTP_ESTABLISHED);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_established);
static void cxgbi_inform_iscsi_conn_closing(struct cxgbi_sock *csk)
{
log_debug(1 << CXGBI_DBG_SOCK,
"csk 0x%p, state %u, flags 0x%lx, conn 0x%p.\n",
csk, csk->state, csk->flags, csk->user_data);
if (csk->state != CTP_ESTABLISHED) {
read_lock_bh(&csk->callback_lock);
if (csk->user_data)
iscsi_conn_failure(csk->user_data,
ISCSI_ERR_TCP_CONN_CLOSE);
read_unlock_bh(&csk->callback_lock);
}
}
void cxgbi_sock_closed(struct cxgbi_sock *csk)
{
log_debug(1 << CXGBI_DBG_SOCK, "csk 0x%p,%u,0x%lx,%u.\n",
csk, (csk)->state, (csk)->flags, (csk)->tid);
cxgbi_sock_set_flag(csk, CTPF_ACTIVE_CLOSE_NEEDED);
if (csk->state == CTP_ACTIVE_OPEN || csk->state == CTP_CLOSED)
return;
if (csk->saddr.sin_port)
sock_put_port(csk);
if (csk->dst)
dst_release(csk->dst);
csk->cdev->csk_release_offload_resources(csk);
cxgbi_sock_set_state(csk, CTP_CLOSED);
cxgbi_inform_iscsi_conn_closing(csk);
cxgbi_sock_put(csk);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_closed);
static void need_active_close(struct cxgbi_sock *csk)
{
int data_lost;
int close_req = 0;
log_debug(1 << CXGBI_DBG_SOCK, "csk 0x%p,%u,0x%lx,%u.\n",
csk, (csk)->state, (csk)->flags, (csk)->tid);
spin_lock_bh(&csk->lock);
if (csk->dst)
dst_confirm(csk->dst);
data_lost = skb_queue_len(&csk->receive_queue);
__skb_queue_purge(&csk->receive_queue);
if (csk->state == CTP_ACTIVE_OPEN)
cxgbi_sock_set_flag(csk, CTPF_ACTIVE_CLOSE_NEEDED);
else if (csk->state == CTP_ESTABLISHED) {
close_req = 1;
cxgbi_sock_set_state(csk, CTP_ACTIVE_CLOSE);
} else if (csk->state == CTP_PASSIVE_CLOSE) {
close_req = 1;
cxgbi_sock_set_state(csk, CTP_CLOSE_WAIT_2);
}
if (close_req) {
if (!cxgbi_sock_flag(csk, CTPF_LOGOUT_RSP_RCVD) ||
data_lost)
csk->cdev->csk_send_abort_req(csk);
else
csk->cdev->csk_send_close_req(csk);
}
spin_unlock_bh(&csk->lock);
}
void cxgbi_sock_fail_act_open(struct cxgbi_sock *csk, int errno)
{
pr_info("csk 0x%p,%u,%lx, %pI4:%u-%pI4:%u, err %d.\n",
csk, csk->state, csk->flags,
&csk->saddr.sin_addr.s_addr, csk->saddr.sin_port,
&csk->daddr.sin_addr.s_addr, csk->daddr.sin_port,
errno);
cxgbi_sock_set_state(csk, CTP_CONNECTING);
csk->err = errno;
cxgbi_sock_closed(csk);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_fail_act_open);
void cxgbi_sock_act_open_req_arp_failure(void *handle, struct sk_buff *skb)
{
struct cxgbi_sock *csk = (struct cxgbi_sock *)skb->sk;
struct module *owner = csk->cdev->owner;
log_debug(1 << CXGBI_DBG_SOCK, "csk 0x%p,%u,0x%lx,%u.\n",
csk, (csk)->state, (csk)->flags, (csk)->tid);
cxgbi_sock_get(csk);
spin_lock_bh(&csk->lock);
if (csk->state == CTP_ACTIVE_OPEN)
cxgbi_sock_fail_act_open(csk, -EHOSTUNREACH);
spin_unlock_bh(&csk->lock);
cxgbi_sock_put(csk);
__kfree_skb(skb);
module_put(owner);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_act_open_req_arp_failure);
void cxgbi_sock_rcv_abort_rpl(struct cxgbi_sock *csk)
{
cxgbi_sock_get(csk);
spin_lock_bh(&csk->lock);
cxgbi_sock_set_flag(csk, CTPF_ABORT_RPL_RCVD);
if (cxgbi_sock_flag(csk, CTPF_ABORT_RPL_PENDING)) {
cxgbi_sock_clear_flag(csk, CTPF_ABORT_RPL_PENDING);
if (cxgbi_sock_flag(csk, CTPF_ABORT_REQ_RCVD))
pr_err("csk 0x%p,%u,0x%lx,%u,ABT_RPL_RSS.\n",
csk, csk->state, csk->flags, csk->tid);
cxgbi_sock_closed(csk);
}
spin_unlock_bh(&csk->lock);
cxgbi_sock_put(csk);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_rcv_abort_rpl);
void cxgbi_sock_rcv_peer_close(struct cxgbi_sock *csk)
{
log_debug(1 << CXGBI_DBG_SOCK, "csk 0x%p,%u,0x%lx,%u.\n",
csk, (csk)->state, (csk)->flags, (csk)->tid);
cxgbi_sock_get(csk);
spin_lock_bh(&csk->lock);
if (cxgbi_sock_flag(csk, CTPF_ABORT_RPL_PENDING))
goto done;
switch (csk->state) {
case CTP_ESTABLISHED:
cxgbi_sock_set_state(csk, CTP_PASSIVE_CLOSE);
break;
case CTP_ACTIVE_CLOSE:
cxgbi_sock_set_state(csk, CTP_CLOSE_WAIT_2);
break;
case CTP_CLOSE_WAIT_1:
cxgbi_sock_closed(csk);
break;
case CTP_ABORTING:
break;
default:
pr_err("csk 0x%p,%u,0x%lx,%u, bad state.\n",
csk, csk->state, csk->flags, csk->tid);
}
cxgbi_inform_iscsi_conn_closing(csk);
done:
spin_unlock_bh(&csk->lock);
cxgbi_sock_put(csk);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_rcv_peer_close);
void cxgbi_sock_rcv_close_conn_rpl(struct cxgbi_sock *csk, u32 snd_nxt)
{
log_debug(1 << CXGBI_DBG_SOCK, "csk 0x%p,%u,0x%lx,%u.\n",
csk, (csk)->state, (csk)->flags, (csk)->tid);
cxgbi_sock_get(csk);
spin_lock_bh(&csk->lock);
csk->snd_una = snd_nxt - 1;
if (cxgbi_sock_flag(csk, CTPF_ABORT_RPL_PENDING))
goto done;
switch (csk->state) {
case CTP_ACTIVE_CLOSE:
cxgbi_sock_set_state(csk, CTP_CLOSE_WAIT_1);
break;
case CTP_CLOSE_WAIT_1:
case CTP_CLOSE_WAIT_2:
cxgbi_sock_closed(csk);
break;
case CTP_ABORTING:
break;
default:
pr_err("csk 0x%p,%u,0x%lx,%u, bad state.\n",
csk, csk->state, csk->flags, csk->tid);
}
done:
spin_unlock_bh(&csk->lock);
cxgbi_sock_put(csk);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_rcv_close_conn_rpl);
void cxgbi_sock_rcv_wr_ack(struct cxgbi_sock *csk, unsigned int credits,
unsigned int snd_una, int seq_chk)
{
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u, cr %u,%u+%u, snd_una %u,%d.\n",
csk, csk->state, csk->flags, csk->tid, credits,
csk->wr_cred, csk->wr_una_cred, snd_una, seq_chk);
spin_lock_bh(&csk->lock);
csk->wr_cred += credits;
if (csk->wr_una_cred > csk->wr_max_cred - csk->wr_cred)
csk->wr_una_cred = csk->wr_max_cred - csk->wr_cred;
while (credits) {
struct sk_buff *p = cxgbi_sock_peek_wr(csk);
if (unlikely(!p)) {
pr_err("csk 0x%p,%u,0x%lx,%u, cr %u,%u+%u, empty.\n",
csk, csk->state, csk->flags, csk->tid, credits,
csk->wr_cred, csk->wr_una_cred);
break;
}
if (unlikely(credits < p->csum)) {
pr_warn("csk 0x%p,%u,0x%lx,%u, cr %u,%u+%u, < %u.\n",
csk, csk->state, csk->flags, csk->tid,
credits, csk->wr_cred, csk->wr_una_cred,
p->csum);
p->csum -= credits;
break;
} else {
cxgbi_sock_dequeue_wr(csk);
credits -= p->csum;
kfree_skb(p);
}
}
cxgbi_sock_check_wr_invariants(csk);
if (seq_chk) {
if (unlikely(before(snd_una, csk->snd_una))) {
pr_warn("csk 0x%p,%u,0x%lx,%u, snd_una %u/%u.",
csk, csk->state, csk->flags, csk->tid, snd_una,
csk->snd_una);
goto done;
}
if (csk->snd_una != snd_una) {
csk->snd_una = snd_una;
dst_confirm(csk->dst);
}
}
if (skb_queue_len(&csk->write_queue)) {
if (csk->cdev->csk_push_tx_frames(csk, 0))
cxgbi_conn_tx_open(csk);
} else
cxgbi_conn_tx_open(csk);
done:
spin_unlock_bh(&csk->lock);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_rcv_wr_ack);
static unsigned int cxgbi_sock_find_best_mtu(struct cxgbi_sock *csk,
unsigned short mtu)
{
int i = 0;
while (i < csk->cdev->nmtus - 1 && csk->cdev->mtus[i + 1] <= mtu)
++i;
return i;
}
unsigned int cxgbi_sock_select_mss(struct cxgbi_sock *csk, unsigned int pmtu)
{
unsigned int idx;
struct dst_entry *dst = csk->dst;
csk->advmss = dst_metric_advmss(dst);
if (csk->advmss > pmtu - 40)
csk->advmss = pmtu - 40;
if (csk->advmss < csk->cdev->mtus[0] - 40)
csk->advmss = csk->cdev->mtus[0] - 40;
idx = cxgbi_sock_find_best_mtu(csk, csk->advmss + 40);
return idx;
}
EXPORT_SYMBOL_GPL(cxgbi_sock_select_mss);
void cxgbi_sock_skb_entail(struct cxgbi_sock *csk, struct sk_buff *skb)
{
cxgbi_skcb_tcp_seq(skb) = csk->write_seq;
__skb_queue_tail(&csk->write_queue, skb);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_skb_entail);
void cxgbi_sock_purge_wr_queue(struct cxgbi_sock *csk)
{
struct sk_buff *skb;
while ((skb = cxgbi_sock_dequeue_wr(csk)) != NULL)
kfree_skb(skb);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_purge_wr_queue);
void cxgbi_sock_check_wr_invariants(const struct cxgbi_sock *csk)
{
int pending = cxgbi_sock_count_pending_wrs(csk);
if (unlikely(csk->wr_cred + pending != csk->wr_max_cred))
pr_err("csk 0x%p, tid %u, credit %u + %u != %u.\n",
csk, csk->tid, csk->wr_cred, pending, csk->wr_max_cred);
}
EXPORT_SYMBOL_GPL(cxgbi_sock_check_wr_invariants);
static inline void
scmd_get_params(struct scsi_cmnd *sc, struct scatterlist **sgl,
unsigned int *sgcnt, unsigned int *dlen,
unsigned int prot)
{
struct scsi_data_buffer *sdb = prot ? scsi_prot(sc) : &sc->sdb;
*sgl = sdb->table.sgl;
*sgcnt = sdb->table.nents;
*dlen = sdb->length;
/* Caution: for protection sdb, sdb->length is invalid */
}
void cxgbi_ddp_set_one_ppod(struct cxgbi_pagepod *ppod,
struct cxgbi_task_tag_info *ttinfo,
struct scatterlist **sg_pp, unsigned int *sg_off)
{
struct scatterlist *sg = sg_pp ? *sg_pp : NULL;
unsigned int offset = sg_off ? *sg_off : 0;
dma_addr_t addr = 0UL;
unsigned int len = 0;
int i;
memcpy(ppod, &ttinfo->hdr, sizeof(struct cxgbi_pagepod_hdr));
if (sg) {
addr = sg_dma_address(sg);
len = sg_dma_len(sg);
}
for (i = 0; i < PPOD_PAGES_MAX; i++) {
if (sg) {
ppod->addr[i] = cpu_to_be64(addr + offset);
offset += PAGE_SIZE;
if (offset == (len + sg->offset)) {
offset = 0;
sg = sg_next(sg);
if (sg) {
addr = sg_dma_address(sg);
len = sg_dma_len(sg);
}
}
} else {
ppod->addr[i] = 0ULL;
}
}
/*
* the fifth address needs to be repeated in the next ppod, so do
* not move sg
*/
if (sg_pp) {
*sg_pp = sg;
*sg_off = offset;
}
if (offset == len) {
offset = 0;
sg = sg_next(sg);
if (sg) {
addr = sg_dma_address(sg);
len = sg_dma_len(sg);
}
}
ppod->addr[i] = sg ? cpu_to_be64(addr + offset) : 0ULL;
}
EXPORT_SYMBOL_GPL(cxgbi_ddp_set_one_ppod);
/*
* APIs interacting with open-iscsi libraries
*/
int cxgbi_ddp_ppm_setup(void **ppm_pp, struct cxgbi_device *cdev,
struct cxgbi_tag_format *tformat,
unsigned int iscsi_size, unsigned int llimit,
unsigned int start, unsigned int rsvd_factor,
unsigned int edram_start, unsigned int edram_size)
{
int err = cxgbi_ppm_init(ppm_pp, cdev->ports[0], cdev->pdev,
cdev->lldev, tformat, iscsi_size, llimit, start,
rsvd_factor, edram_start, edram_size);
if (err >= 0) {
struct cxgbi_ppm *ppm = (struct cxgbi_ppm *)(*ppm_pp);
if (ppm->ppmax < 1024 ||
ppm->tformat.pgsz_idx_dflt >= DDP_PGIDX_MAX)
cdev->flags |= CXGBI_FLAG_DDP_OFF;
err = 0;
} else {
cdev->flags |= CXGBI_FLAG_DDP_OFF;
}
return err;
}
EXPORT_SYMBOL_GPL(cxgbi_ddp_ppm_setup);
static int cxgbi_ddp_sgl_check(struct scatterlist *sgl, int nents)
{
int i;
int last_sgidx = nents - 1;
struct scatterlist *sg = sgl;
for (i = 0; i < nents; i++, sg = sg_next(sg)) {
unsigned int len = sg->length + sg->offset;
if ((sg->offset & 0x3) || (i && sg->offset) ||
((i != last_sgidx) && len != PAGE_SIZE)) {
log_debug(1 << CXGBI_DBG_DDP,
"sg %u/%u, %u,%u, not aligned.\n",
i, nents, sg->offset, sg->length);
goto err_out;
}
}
return 0;
err_out:
return -EINVAL;
}
static int cxgbi_ddp_reserve(struct cxgbi_conn *cconn,
struct cxgbi_task_data *tdata, u32 sw_tag,
unsigned int xferlen)
{
struct cxgbi_sock *csk = cconn->cep->csk;
struct cxgbi_device *cdev = csk->cdev;
struct cxgbi_ppm *ppm = cdev->cdev2ppm(cdev);
struct cxgbi_task_tag_info *ttinfo = &tdata->ttinfo;
struct scatterlist *sgl = ttinfo->sgl;
unsigned int sgcnt = ttinfo->nents;
unsigned int sg_offset = sgl->offset;
int err;
if (cdev->flags & CXGBI_FLAG_DDP_OFF) {
log_debug(1 << CXGBI_DBG_DDP,
"cdev 0x%p DDP off.\n", cdev);
return -EINVAL;
}
if (!ppm || xferlen < DDP_THRESHOLD || !sgcnt ||
ppm->tformat.pgsz_idx_dflt >= DDP_PGIDX_MAX) {
log_debug(1 << CXGBI_DBG_DDP,
"ppm 0x%p, pgidx %u, xfer %u, sgcnt %u, NO ddp.\n",
ppm, ppm ? ppm->tformat.pgsz_idx_dflt : DDP_PGIDX_MAX,
xferlen, ttinfo->nents);
return -EINVAL;
}
/* make sure the buffer is suitable for ddp */
if (cxgbi_ddp_sgl_check(sgl, sgcnt) < 0)
return -EINVAL;
ttinfo->nr_pages = (xferlen + sgl->offset + (1 << PAGE_SHIFT) - 1) >>
PAGE_SHIFT;
/*
* the ddp tag will be used for the itt in the outgoing pdu,
* the itt genrated by libiscsi is saved in the ppm and can be
* retrieved via the ddp tag
*/
err = cxgbi_ppm_ppods_reserve(ppm, ttinfo->nr_pages, 0, &ttinfo->idx,
&ttinfo->tag, (unsigned long)sw_tag);
if (err < 0) {
cconn->ddp_full++;
return err;
}
ttinfo->npods = err;
/* setup dma from scsi command sgl */
sgl->offset = 0;
err = dma_map_sg(&ppm->pdev->dev, sgl, sgcnt, DMA_FROM_DEVICE);
sgl->offset = sg_offset;
if (err == 0) {
pr_info("%s: 0x%x, xfer %u, sgl %u dma mapping err.\n",
__func__, sw_tag, xferlen, sgcnt);
goto rel_ppods;
}
if (err != ttinfo->nr_pages) {
log_debug(1 << CXGBI_DBG_DDP,
"%s: sw tag 0x%x, xfer %u, sgl %u, dma count %d.\n",
__func__, sw_tag, xferlen, sgcnt, err);
}
ttinfo->flags |= CXGBI_PPOD_INFO_FLAG_MAPPED;
ttinfo->cid = csk->port_id;
cxgbi_ppm_make_ppod_hdr(ppm, ttinfo->tag, csk->tid, sgl->offset,
xferlen, &ttinfo->hdr);
if (cdev->flags & CXGBI_FLAG_USE_PPOD_OFLDQ) {
/* write ppod from xmit_pdu (of iscsi_scsi_command pdu) */
ttinfo->flags |= CXGBI_PPOD_INFO_FLAG_VALID;
} else {
/* write ppod from control queue now */
err = cdev->csk_ddp_set_map(ppm, csk, ttinfo);
if (err < 0)
goto rel_ppods;
}
return 0;
rel_ppods:
cxgbi_ppm_ppod_release(ppm, ttinfo->idx);
if (ttinfo->flags & CXGBI_PPOD_INFO_FLAG_MAPPED) {
ttinfo->flags &= ~CXGBI_PPOD_INFO_FLAG_MAPPED;
dma_unmap_sg(&ppm->pdev->dev, sgl, sgcnt, DMA_FROM_DEVICE);
}
return -EINVAL;
}
static void task_release_itt(struct iscsi_task *task, itt_t hdr_itt)
{
struct scsi_cmnd *sc = task->sc;
struct iscsi_tcp_conn *tcp_conn = task->conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
struct cxgbi_device *cdev = cconn->chba->cdev;
struct cxgbi_ppm *ppm = cdev->cdev2ppm(cdev);
u32 tag = ntohl((__force u32)hdr_itt);
log_debug(1 << CXGBI_DBG_DDP,
"cdev 0x%p, task 0x%p, release tag 0x%x.\n",
cdev, task, tag);
if (sc && sc->sc_data_direction == DMA_FROM_DEVICE &&
cxgbi_ppm_is_ddp_tag(ppm, tag)) {
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct cxgbi_task_tag_info *ttinfo = &tdata->ttinfo;
if (!(cdev->flags & CXGBI_FLAG_USE_PPOD_OFLDQ))
cdev->csk_ddp_clear_map(cdev, ppm, ttinfo);
cxgbi_ppm_ppod_release(ppm, ttinfo->idx);
dma_unmap_sg(&ppm->pdev->dev, ttinfo->sgl, ttinfo->nents,
DMA_FROM_DEVICE);
}
}
static inline u32 cxgbi_build_sw_tag(u32 idx, u32 age)
{
/* assume idx and age both are < 0x7FFF (32767) */
return (idx << 16) | age;
}
static int task_reserve_itt(struct iscsi_task *task, itt_t *hdr_itt)
{
struct scsi_cmnd *sc = task->sc;
struct iscsi_conn *conn = task->conn;
struct iscsi_session *sess = conn->session;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
struct cxgbi_device *cdev = cconn->chba->cdev;
struct cxgbi_ppm *ppm = cdev->cdev2ppm(cdev);
u32 sw_tag = cxgbi_build_sw_tag(task->itt, sess->age);
u32 tag = 0;
int err = -EINVAL;
if (sc && sc->sc_data_direction == DMA_FROM_DEVICE) {
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct cxgbi_task_tag_info *ttinfo = &tdata->ttinfo;
scmd_get_params(sc, &ttinfo->sgl, &ttinfo->nents,
&tdata->dlen, 0);
err = cxgbi_ddp_reserve(cconn, tdata, sw_tag, tdata->dlen);
if (!err)
tag = ttinfo->tag;
else
log_debug(1 << CXGBI_DBG_DDP,
"csk 0x%p, R task 0x%p, %u,%u, no ddp.\n",
cconn->cep->csk, task, tdata->dlen,
ttinfo->nents);
}
if (err < 0) {
err = cxgbi_ppm_make_non_ddp_tag(ppm, sw_tag, &tag);
if (err < 0)
return err;
}
/* the itt need to sent in big-endian order */
*hdr_itt = (__force itt_t)htonl(tag);
log_debug(1 << CXGBI_DBG_DDP,
"cdev 0x%p, task 0x%p, 0x%x(0x%x,0x%x)->0x%x/0x%x.\n",
cdev, task, sw_tag, task->itt, sess->age, tag, *hdr_itt);
return 0;
}
void cxgbi_parse_pdu_itt(struct iscsi_conn *conn, itt_t itt, int *idx, int *age)
{
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
struct cxgbi_device *cdev = cconn->chba->cdev;
struct cxgbi_ppm *ppm = cdev->cdev2ppm(cdev);
u32 tag = ntohl((__force u32)itt);
u32 sw_bits;
if (ppm) {
if (cxgbi_ppm_is_ddp_tag(ppm, tag))
sw_bits = cxgbi_ppm_get_tag_caller_data(ppm, tag);
else
sw_bits = cxgbi_ppm_decode_non_ddp_tag(ppm, tag);
} else {
sw_bits = tag;
}
cxgbi_decode_sw_tag(sw_bits, idx, age);
log_debug(1 << CXGBI_DBG_DDP,
"cdev 0x%p, tag 0x%x/0x%x, -> 0x%x(0x%x,0x%x).\n",
cdev, tag, itt, sw_bits, idx ? *idx : 0xFFFFF,
age ? *age : 0xFF);
}
EXPORT_SYMBOL_GPL(cxgbi_parse_pdu_itt);
void cxgbi_conn_tx_open(struct cxgbi_sock *csk)
{
struct iscsi_conn *conn = csk->user_data;
if (conn) {
log_debug(1 << CXGBI_DBG_SOCK,
"csk 0x%p, cid %d.\n", csk, conn->id);
iscsi_conn_queue_xmit(conn);
}
}
EXPORT_SYMBOL_GPL(cxgbi_conn_tx_open);
/*
* pdu receive, interact with libiscsi_tcp
*/
static inline int read_pdu_skb(struct iscsi_conn *conn,
struct sk_buff *skb,
unsigned int offset,
int offloaded)
{
int status = 0;
int bytes_read;
bytes_read = iscsi_tcp_recv_skb(conn, skb, offset, offloaded, &status);
switch (status) {
case ISCSI_TCP_CONN_ERR:
pr_info("skb 0x%p, off %u, %d, TCP_ERR.\n",
skb, offset, offloaded);
return -EIO;
case ISCSI_TCP_SUSPENDED:
log_debug(1 << CXGBI_DBG_PDU_RX,
"skb 0x%p, off %u, %d, TCP_SUSPEND, rc %d.\n",
skb, offset, offloaded, bytes_read);
/* no transfer - just have caller flush queue */
return bytes_read;
case ISCSI_TCP_SKB_DONE:
pr_info("skb 0x%p, off %u, %d, TCP_SKB_DONE.\n",
skb, offset, offloaded);
/*
* pdus should always fit in the skb and we should get
* segment done notifcation.
*/
iscsi_conn_printk(KERN_ERR, conn, "Invalid pdu or skb.");
return -EFAULT;
case ISCSI_TCP_SEGMENT_DONE:
log_debug(1 << CXGBI_DBG_PDU_RX,
"skb 0x%p, off %u, %d, TCP_SEG_DONE, rc %d.\n",
skb, offset, offloaded, bytes_read);
return bytes_read;
default:
pr_info("skb 0x%p, off %u, %d, invalid status %d.\n",
skb, offset, offloaded, status);
return -EINVAL;
}
}
static int
skb_read_pdu_bhs(struct cxgbi_sock *csk, struct iscsi_conn *conn,
struct sk_buff *skb)
{
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
int err;
log_debug(1 << CXGBI_DBG_PDU_RX,
"conn 0x%p, skb 0x%p, len %u, flag 0x%lx.\n",
conn, skb, skb->len, cxgbi_skcb_flags(skb));
if (!iscsi_tcp_recv_segment_is_hdr(tcp_conn)) {
pr_info("conn 0x%p, skb 0x%p, not hdr.\n", conn, skb);
iscsi_conn_failure(conn, ISCSI_ERR_PROTO);
return -EIO;
}
if (conn->hdrdgst_en &&
cxgbi_skcb_test_flag(skb, SKCBF_RX_HCRC_ERR)) {
pr_info("conn 0x%p, skb 0x%p, hcrc.\n", conn, skb);
iscsi_conn_failure(conn, ISCSI_ERR_HDR_DGST);
return -EIO;
}
if (cxgbi_skcb_test_flag(skb, SKCBF_RX_ISCSI_COMPL) &&
cxgbi_skcb_test_flag(skb, SKCBF_RX_DATA_DDPD)) {
/* If completion flag is set and data is directly
* placed in to the host memory then update
* task->exp_datasn to the datasn in completion
* iSCSI hdr as T6 adapter generates completion only
* for the last pdu of a sequence.
*/
itt_t itt = ((struct iscsi_data *)skb->data)->itt;
struct iscsi_task *task = iscsi_itt_to_ctask(conn, itt);
u32 data_sn = be32_to_cpu(((struct iscsi_data *)
skb->data)->datasn);
if (task && task->sc) {
struct iscsi_tcp_task *tcp_task = task->dd_data;
tcp_task->exp_datasn = data_sn;
}
}
err = read_pdu_skb(conn, skb, 0, 0);
if (likely(err >= 0)) {
struct iscsi_hdr *hdr = (struct iscsi_hdr *)skb->data;
u8 opcode = hdr->opcode & ISCSI_OPCODE_MASK;
if (unlikely(opcode == ISCSI_OP_LOGOUT_RSP))
cxgbi_sock_set_flag(csk, CTPF_LOGOUT_RSP_RCVD);
}
return err;
}
static int skb_read_pdu_data(struct iscsi_conn *conn, struct sk_buff *lskb,
struct sk_buff *skb, unsigned int offset)
{
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
bool offloaded = 0;
int opcode = tcp_conn->in.hdr->opcode & ISCSI_OPCODE_MASK;
log_debug(1 << CXGBI_DBG_PDU_RX,
"conn 0x%p, skb 0x%p, len %u, flag 0x%lx.\n",
conn, skb, skb->len, cxgbi_skcb_flags(skb));
if (conn->datadgst_en &&
cxgbi_skcb_test_flag(lskb, SKCBF_RX_DCRC_ERR)) {
pr_info("conn 0x%p, skb 0x%p, dcrc 0x%lx.\n",
conn, lskb, cxgbi_skcb_flags(lskb));
iscsi_conn_failure(conn, ISCSI_ERR_DATA_DGST);
return -EIO;
}
if (iscsi_tcp_recv_segment_is_hdr(tcp_conn))
return 0;
/* coalesced, add header digest length */
if (lskb == skb && conn->hdrdgst_en)
offset += ISCSI_DIGEST_SIZE;
if (cxgbi_skcb_test_flag(lskb, SKCBF_RX_DATA_DDPD))
offloaded = 1;
if (opcode == ISCSI_OP_SCSI_DATA_IN)
log_debug(1 << CXGBI_DBG_PDU_RX,
"skb 0x%p, op 0x%x, itt 0x%x, %u %s ddp'ed.\n",
skb, opcode, ntohl(tcp_conn->in.hdr->itt),
tcp_conn->in.datalen, offloaded ? "is" : "not");
return read_pdu_skb(conn, skb, offset, offloaded);
}
static void csk_return_rx_credits(struct cxgbi_sock *csk, int copied)
{
struct cxgbi_device *cdev = csk->cdev;
int must_send;
u32 credits;
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx,%u, seq %u, wup %u, thre %u, %u.\n",
csk, csk->state, csk->flags, csk->tid, csk->copied_seq,
csk->rcv_wup, cdev->rx_credit_thres,
csk->rcv_win);
if (!cdev->rx_credit_thres)
return;
if (csk->state != CTP_ESTABLISHED)
return;
credits = csk->copied_seq - csk->rcv_wup;
if (unlikely(!credits))
return;
must_send = credits + 16384 >= csk->rcv_win;
if (must_send || credits >= cdev->rx_credit_thres)
csk->rcv_wup += cdev->csk_send_rx_credits(csk, credits);
}
void cxgbi_conn_pdu_ready(struct cxgbi_sock *csk)
{
struct cxgbi_device *cdev = csk->cdev;
struct iscsi_conn *conn = csk->user_data;
struct sk_buff *skb;
unsigned int read = 0;
int err = 0;
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, conn 0x%p.\n", csk, conn);
if (unlikely(!conn || test_bit(ISCSI_CONN_FLAG_SUSPEND_RX, &conn->flags))) {
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, conn 0x%p, id %d, conn flags 0x%lx!\n",
csk, conn, conn ? conn->id : 0xFF,
conn ? conn->flags : 0xFF);
return;
}
while (!err) {
skb = skb_peek(&csk->receive_queue);
if (!skb ||
!(cxgbi_skcb_test_flag(skb, SKCBF_RX_STATUS))) {
if (skb)
log_debug(1 << CXGBI_DBG_PDU_RX,
"skb 0x%p, NOT ready 0x%lx.\n",
skb, cxgbi_skcb_flags(skb));
break;
}
__skb_unlink(skb, &csk->receive_queue);
read += cxgbi_skcb_rx_pdulen(skb);
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, skb 0x%p,%u,f 0x%lx, pdu len %u.\n",
csk, skb, skb->len, cxgbi_skcb_flags(skb),
cxgbi_skcb_rx_pdulen(skb));
if (cxgbi_skcb_test_flag(skb, SKCBF_RX_COALESCED)) {
err = skb_read_pdu_bhs(csk, conn, skb);
if (err < 0) {
pr_err("coalesced bhs, csk 0x%p, skb 0x%p,%u, "
"f 0x%lx, plen %u.\n",
csk, skb, skb->len,
cxgbi_skcb_flags(skb),
cxgbi_skcb_rx_pdulen(skb));
goto skb_done;
}
err = skb_read_pdu_data(conn, skb, skb,
err + cdev->skb_rx_extra);
if (err < 0)
pr_err("coalesced data, csk 0x%p, skb 0x%p,%u, "
"f 0x%lx, plen %u.\n",
csk, skb, skb->len,
cxgbi_skcb_flags(skb),
cxgbi_skcb_rx_pdulen(skb));
} else {
err = skb_read_pdu_bhs(csk, conn, skb);
if (err < 0) {
pr_err("bhs, csk 0x%p, skb 0x%p,%u, "
"f 0x%lx, plen %u.\n",
csk, skb, skb->len,
cxgbi_skcb_flags(skb),
cxgbi_skcb_rx_pdulen(skb));
goto skb_done;
}
if (cxgbi_skcb_test_flag(skb, SKCBF_RX_DATA)) {
struct sk_buff *dskb;
dskb = skb_peek(&csk->receive_queue);
if (!dskb) {
pr_err("csk 0x%p, skb 0x%p,%u, f 0x%lx,"
" plen %u, NO data.\n",
csk, skb, skb->len,
cxgbi_skcb_flags(skb),
cxgbi_skcb_rx_pdulen(skb));
err = -EIO;
goto skb_done;
}
__skb_unlink(dskb, &csk->receive_queue);
err = skb_read_pdu_data(conn, skb, dskb, 0);
if (err < 0)
pr_err("data, csk 0x%p, skb 0x%p,%u, "
"f 0x%lx, plen %u, dskb 0x%p,"
"%u.\n",
csk, skb, skb->len,
cxgbi_skcb_flags(skb),
cxgbi_skcb_rx_pdulen(skb),
dskb, dskb->len);
__kfree_skb(dskb);
} else
err = skb_read_pdu_data(conn, skb, skb, 0);
}
skb_done:
__kfree_skb(skb);
if (err < 0)
break;
}
log_debug(1 << CXGBI_DBG_PDU_RX, "csk 0x%p, read %u.\n", csk, read);
if (read) {
csk->copied_seq += read;
csk_return_rx_credits(csk, read);
conn->rxdata_octets += read;
}
if (err < 0) {
pr_info("csk 0x%p, 0x%p, rx failed %d, read %u.\n",
csk, conn, err, read);
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
}
}
EXPORT_SYMBOL_GPL(cxgbi_conn_pdu_ready);
static int sgl_seek_offset(struct scatterlist *sgl, unsigned int sgcnt,
unsigned int offset, unsigned int *off,
struct scatterlist **sgp)
{
int i;
struct scatterlist *sg;
for_each_sg(sgl, sg, sgcnt, i) {
if (offset < sg->length) {
*off = offset;
*sgp = sg;
return 0;
}
offset -= sg->length;
}
return -EFAULT;
}
static int
sgl_read_to_frags(struct scatterlist *sg, unsigned int sgoffset,
unsigned int dlen, struct page_frag *frags,
int frag_max, u32 *dlimit)
{
unsigned int datalen = dlen;
unsigned int sglen = sg->length - sgoffset;
struct page *page = sg_page(sg);
int i;
i = 0;
do {
unsigned int copy;
if (!sglen) {
sg = sg_next(sg);
if (!sg) {
pr_warn("sg %d NULL, len %u/%u.\n",
i, datalen, dlen);
return -EINVAL;
}
sgoffset = 0;
sglen = sg->length;
page = sg_page(sg);
}
copy = min(datalen, sglen);
if (i && page == frags[i - 1].page &&
sgoffset + sg->offset ==
frags[i - 1].offset + frags[i - 1].size) {
frags[i - 1].size += copy;
} else {
if (i >= frag_max) {
pr_warn("too many pages %u, dlen %u.\n",
frag_max, dlen);
*dlimit = dlen - datalen;
return -EINVAL;
}
frags[i].page = page;
frags[i].offset = sg->offset + sgoffset;
frags[i].size = copy;
i++;
}
datalen -= copy;
sgoffset += copy;
sglen -= copy;
} while (datalen);
return i;
}
static void cxgbi_task_data_sgl_check(struct iscsi_task *task)
{
struct scsi_cmnd *sc = task->sc;
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct scatterlist *sg, *sgl = NULL;
u32 sgcnt = 0;
int i;
tdata->flags = CXGBI_TASK_SGL_CHECKED;
if (!sc)
return;
scmd_get_params(sc, &sgl, &sgcnt, &tdata->dlen, 0);
if (!sgl || !sgcnt) {
tdata->flags |= CXGBI_TASK_SGL_COPY;
return;
}
for_each_sg(sgl, sg, sgcnt, i) {
if (page_count(sg_page(sg)) < 1) {
tdata->flags |= CXGBI_TASK_SGL_COPY;
return;
}
}
}
static int
cxgbi_task_data_sgl_read(struct iscsi_task *task, u32 offset, u32 count,
u32 *dlimit)
{
struct scsi_cmnd *sc = task->sc;
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct scatterlist *sgl = NULL;
struct scatterlist *sg;
u32 dlen = 0;
u32 sgcnt;
int err;
if (!sc)
return 0;
scmd_get_params(sc, &sgl, &sgcnt, &dlen, 0);
if (!sgl || !sgcnt)
return 0;
err = sgl_seek_offset(sgl, sgcnt, offset, &tdata->sgoffset, &sg);
if (err < 0) {
pr_warn("tpdu max, sgl %u, bad offset %u/%u.\n",
sgcnt, offset, tdata->dlen);
return err;
}
err = sgl_read_to_frags(sg, tdata->sgoffset, count,
tdata->frags, MAX_SKB_FRAGS, dlimit);
if (err < 0) {
log_debug(1 << CXGBI_DBG_ISCSI,
"sgl max limit, sgl %u, offset %u, %u/%u, dlimit %u.\n",
sgcnt, offset, count, tdata->dlen, *dlimit);
return err;
}
tdata->offset = offset;
tdata->count = count;
tdata->nr_frags = err;
tdata->total_count = count;
tdata->total_offset = offset;
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"%s: offset %u, count %u,\n"
"err %u, total_count %u, total_offset %u\n",
__func__, offset, count, err, tdata->total_count, tdata->total_offset);
return 0;
}
int cxgbi_conn_alloc_pdu(struct iscsi_task *task, u8 op)
{
struct iscsi_conn *conn = task->conn;
struct iscsi_session *session = task->conn->session;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
struct cxgbi_device *cdev = cconn->chba->cdev;
struct cxgbi_sock *csk = cconn->cep ? cconn->cep->csk : NULL;
struct iscsi_tcp_task *tcp_task = task->dd_data;
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct scsi_cmnd *sc = task->sc;
u32 headroom = SKB_TX_ISCSI_PDU_HEADER_MAX;
u32 max_txdata_len = conn->max_xmit_dlength;
u32 iso_tx_rsvd = 0, local_iso_info = 0;
u32 last_tdata_offset, last_tdata_count;
int err = 0;
if (!tcp_task) {
pr_err("task 0x%p, tcp_task 0x%p, tdata 0x%p.\n",
task, tcp_task, tdata);
return -ENOMEM;
}
if (!csk) {
pr_err("task 0x%p, csk gone.\n", task);
return -EPIPE;
}
op &= ISCSI_OPCODE_MASK;
tcp_task->dd_data = tdata;
task->hdr = NULL;
last_tdata_count = tdata->count;
last_tdata_offset = tdata->offset;
if ((op == ISCSI_OP_SCSI_DATA_OUT) ||
((op == ISCSI_OP_SCSI_CMD) &&
(sc->sc_data_direction == DMA_TO_DEVICE))) {
u32 remaining_data_tosend, dlimit = 0;
u32 max_pdu_size, max_num_pdu, num_pdu;
u32 count;
/* Preserve conn->max_xmit_dlength because it can get updated to
* ISO data size.
*/
if (task->state == ISCSI_TASK_PENDING)
tdata->max_xmit_dlength = conn->max_xmit_dlength;
if (!tdata->offset)
cxgbi_task_data_sgl_check(task);
remaining_data_tosend =
tdata->dlen - tdata->offset - tdata->count;
recalculate_sgl:
max_txdata_len = tdata->max_xmit_dlength;
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"tdata->dlen %u, remaining to send %u "
"conn->max_xmit_dlength %u, "
"tdata->max_xmit_dlength %u\n",
tdata->dlen, remaining_data_tosend,
conn->max_xmit_dlength, tdata->max_xmit_dlength);
if (cdev->skb_iso_txhdr && !csk->disable_iso &&
(remaining_data_tosend > tdata->max_xmit_dlength) &&
!(remaining_data_tosend % 4)) {
u32 max_iso_data;
if ((op == ISCSI_OP_SCSI_CMD) &&
session->initial_r2t_en)
goto no_iso;
max_pdu_size = tdata->max_xmit_dlength +
ISCSI_PDU_NONPAYLOAD_LEN;
max_iso_data = rounddown(CXGBI_MAX_ISO_DATA_IN_SKB,
csk->advmss);
max_num_pdu = max_iso_data / max_pdu_size;
num_pdu = (remaining_data_tosend +
tdata->max_xmit_dlength - 1) /
tdata->max_xmit_dlength;
if (num_pdu > max_num_pdu)
num_pdu = max_num_pdu;
conn->max_xmit_dlength = tdata->max_xmit_dlength * num_pdu;
max_txdata_len = conn->max_xmit_dlength;
iso_tx_rsvd = cdev->skb_iso_txhdr;
local_iso_info = sizeof(struct cxgbi_iso_info);
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"max_pdu_size %u, max_num_pdu %u, "
"max_txdata %u, num_pdu %u\n",
max_pdu_size, max_num_pdu,
max_txdata_len, num_pdu);
}
no_iso:
count = min_t(u32, max_txdata_len, remaining_data_tosend);
err = cxgbi_task_data_sgl_read(task,
tdata->offset + tdata->count,
count, &dlimit);
if (unlikely(err < 0)) {
log_debug(1 << CXGBI_DBG_ISCSI,
"task 0x%p, tcp_task 0x%p, tdata 0x%p, "
"sgl err %d, count %u, dlimit %u\n",
task, tcp_task, tdata, err, count, dlimit);
if (dlimit) {
remaining_data_tosend =
rounddown(dlimit,
tdata->max_xmit_dlength);
if (!remaining_data_tosend)
remaining_data_tosend = dlimit;
dlimit = 0;
conn->max_xmit_dlength = remaining_data_tosend;
goto recalculate_sgl;
}
pr_err("task 0x%p, tcp_task 0x%p, tdata 0x%p, "
"sgl err %d\n",
task, tcp_task, tdata, err);
goto ret_err;
}
if ((tdata->flags & CXGBI_TASK_SGL_COPY) ||
(tdata->nr_frags > MAX_SKB_FRAGS))
headroom += conn->max_xmit_dlength;
}
tdata->skb = alloc_skb(local_iso_info + cdev->skb_tx_rsvd +
iso_tx_rsvd + headroom, GFP_ATOMIC);
if (!tdata->skb) {
tdata->count = last_tdata_count;
tdata->offset = last_tdata_offset;
err = -ENOMEM;
goto ret_err;
}
skb_reserve(tdata->skb, local_iso_info + cdev->skb_tx_rsvd +
iso_tx_rsvd);
if (task->sc) {
task->hdr = (struct iscsi_hdr *)tdata->skb->data;
} else {
task->hdr = kzalloc(SKB_TX_ISCSI_PDU_HEADER_MAX, GFP_ATOMIC);
if (!task->hdr) {
__kfree_skb(tdata->skb);
tdata->skb = NULL;
return -ENOMEM;
}
}
task->hdr_max = SKB_TX_ISCSI_PDU_HEADER_MAX;
if (iso_tx_rsvd)
cxgbi_skcb_set_flag(tdata->skb, SKCBF_TX_ISO);
/* data_out uses scsi_cmd's itt */
if (op != ISCSI_OP_SCSI_DATA_OUT)
task_reserve_itt(task, &task->hdr->itt);
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"task 0x%p, op 0x%x, skb 0x%p,%u+%u/%u, itt 0x%x.\n",
task, op, tdata->skb, cdev->skb_tx_rsvd, headroom,
conn->max_xmit_dlength, be32_to_cpu(task->hdr->itt));
return 0;
ret_err:
conn->max_xmit_dlength = tdata->max_xmit_dlength;
return err;
}
EXPORT_SYMBOL_GPL(cxgbi_conn_alloc_pdu);
static int
cxgbi_prep_iso_info(struct iscsi_task *task, struct sk_buff *skb,
u32 count)
{
struct cxgbi_iso_info *iso_info = (struct cxgbi_iso_info *)skb->head;
struct iscsi_r2t_info *r2t;
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct iscsi_conn *conn = task->conn;
struct iscsi_session *session = conn->session;
struct iscsi_tcp_task *tcp_task = task->dd_data;
u32 burst_size = 0, r2t_dlength = 0, dlength;
u32 max_pdu_len = tdata->max_xmit_dlength;
u32 segment_offset = 0;
u32 num_pdu;
if (unlikely(!cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO)))
return 0;
memset(iso_info, 0, sizeof(struct cxgbi_iso_info));
if (task->hdr->opcode == ISCSI_OP_SCSI_CMD && session->imm_data_en) {
iso_info->flags |= CXGBI_ISO_INFO_IMM_ENABLE;
burst_size = count;
}
dlength = ntoh24(task->hdr->dlength);
dlength = min(dlength, max_pdu_len);
hton24(task->hdr->dlength, dlength);
num_pdu = (count + max_pdu_len - 1) / max_pdu_len;
if (iscsi_task_has_unsol_data(task))
r2t = &task->unsol_r2t;
else
r2t = tcp_task->r2t;
if (r2t) {
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"count %u, tdata->count %u, num_pdu %u,"
"task->hdr_len %u, r2t->data_length %u, r2t->sent %u\n",
count, tdata->count, num_pdu, task->hdr_len,
r2t->data_length, r2t->sent);
r2t_dlength = r2t->data_length - r2t->sent;
segment_offset = r2t->sent;
r2t->datasn += num_pdu - 1;
}
if (!r2t || !r2t->sent)
iso_info->flags |= CXGBI_ISO_INFO_FSLICE;
if (task->hdr->flags & ISCSI_FLAG_CMD_FINAL)
iso_info->flags |= CXGBI_ISO_INFO_LSLICE;
task->hdr->flags &= ~ISCSI_FLAG_CMD_FINAL;
iso_info->op = task->hdr->opcode;
iso_info->ahs = task->hdr->hlength;
iso_info->num_pdu = num_pdu;
iso_info->mpdu = max_pdu_len;
iso_info->burst_size = (burst_size + r2t_dlength) >> 2;
iso_info->len = count + task->hdr_len;
iso_info->segment_offset = segment_offset;
cxgbi_skcb_tx_iscsi_hdrlen(skb) = task->hdr_len;
return 0;
}
static inline void tx_skb_setmode(struct sk_buff *skb, int hcrc, int dcrc)
{
if (hcrc || dcrc) {
u8 submode = 0;
if (hcrc)
submode |= 1;
if (dcrc)
submode |= 2;
cxgbi_skcb_tx_ulp_mode(skb) = (ULP2_MODE_ISCSI << 4) | submode;
} else
cxgbi_skcb_tx_ulp_mode(skb) = 0;
}
static struct page *rsvd_page;
int cxgbi_conn_init_pdu(struct iscsi_task *task, unsigned int offset,
unsigned int count)
{
struct iscsi_conn *conn = task->conn;
struct iscsi_tcp_task *tcp_task = task->dd_data;
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct sk_buff *skb;
struct scsi_cmnd *sc = task->sc;
u32 expected_count, expected_offset;
u32 datalen = count, dlimit = 0;
u32 i, padlen = iscsi_padding(count);
struct page *pg;
int err;
if (!tcp_task || (tcp_task->dd_data != tdata)) {
pr_err("task 0x%p,0x%p, tcp_task 0x%p, tdata 0x%p/0x%p.\n",
task, task->sc, tcp_task,
tcp_task ? tcp_task->dd_data : NULL, tdata);
return -EINVAL;
}
skb = tdata->skb;
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"task 0x%p,0x%p, skb 0x%p, 0x%x,0x%x,0x%x, %u+%u.\n",
task, task->sc, skb, (*skb->data) & ISCSI_OPCODE_MASK,
be32_to_cpu(task->cmdsn), be32_to_cpu(task->hdr->itt), offset, count);
skb_put(skb, task->hdr_len);
tx_skb_setmode(skb, conn->hdrdgst_en, datalen ? conn->datadgst_en : 0);
if (!count) {
tdata->count = count;
tdata->offset = offset;
tdata->nr_frags = 0;
tdata->total_offset = 0;
tdata->total_count = 0;
if (tdata->max_xmit_dlength)
conn->max_xmit_dlength = tdata->max_xmit_dlength;
cxgbi_skcb_clear_flag(skb, SKCBF_TX_ISO);
return 0;
}
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"data->total_count %u, tdata->total_offset %u\n",
tdata->total_count, tdata->total_offset);
expected_count = tdata->total_count;
expected_offset = tdata->total_offset;
if ((count != expected_count) ||
(offset != expected_offset)) {
err = cxgbi_task_data_sgl_read(task, offset, count, &dlimit);
if (err < 0) {
pr_err("task 0x%p,0x%p, tcp_task 0x%p, tdata 0x%p/0x%p "
"dlimit %u, sgl err %d.\n", task, task->sc,
tcp_task, tcp_task ? tcp_task->dd_data : NULL,
tdata, dlimit, err);
return err;
}
}
/* Restore original value of conn->max_xmit_dlength because
* it can get updated to ISO data size.
*/
conn->max_xmit_dlength = tdata->max_xmit_dlength;
if (sc) {
struct page_frag *frag = tdata->frags;
if ((tdata->flags & CXGBI_TASK_SGL_COPY) ||
(tdata->nr_frags > MAX_SKB_FRAGS) ||
(padlen && (tdata->nr_frags ==
MAX_SKB_FRAGS))) {
char *dst = skb->data + task->hdr_len;
/* data fits in the skb's headroom */
for (i = 0; i < tdata->nr_frags; i++, frag++) {
char *src = kmap_atomic(frag->page);
memcpy(dst, src + frag->offset, frag->size);
dst += frag->size;
kunmap_atomic(src);
}
if (padlen) {
memset(dst, 0, padlen);
padlen = 0;
}
skb_put(skb, count + padlen);
} else {
for (i = 0; i < tdata->nr_frags; i++, frag++) {
get_page(frag->page);
skb_fill_page_desc(skb, i, frag->page,
frag->offset, frag->size);
}
skb->len += count;
skb->data_len += count;
skb->truesize += count;
}
} else {
pg = virt_to_head_page(task->data);
get_page(pg);
skb_fill_page_desc(skb, 0, pg,
task->data - (char *)page_address(pg),
count);
skb->len += count;
skb->data_len += count;
skb->truesize += count;
}
if (padlen) {
get_page(rsvd_page);
skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
rsvd_page, 0, padlen);
skb->data_len += padlen;
skb->truesize += padlen;
skb->len += padlen;
}
if (likely(count > tdata->max_xmit_dlength))
cxgbi_prep_iso_info(task, skb, count);
else
cxgbi_skcb_clear_flag(skb, SKCBF_TX_ISO);
return 0;
}
EXPORT_SYMBOL_GPL(cxgbi_conn_init_pdu);
static int cxgbi_sock_tx_queue_up(struct cxgbi_sock *csk, struct sk_buff *skb)
{
struct cxgbi_device *cdev = csk->cdev;
struct cxgbi_iso_info *iso_cpl;
u32 frags = skb_shinfo(skb)->nr_frags;
u32 extra_len, num_pdu, hdr_len;
u32 iso_tx_rsvd = 0;
if (csk->state != CTP_ESTABLISHED) {
log_debug(1 << CXGBI_DBG_PDU_TX,
"csk 0x%p,%u,0x%lx,%u, EAGAIN.\n",
csk, csk->state, csk->flags, csk->tid);
return -EPIPE;
}
if (csk->err) {
log_debug(1 << CXGBI_DBG_PDU_TX,
"csk 0x%p,%u,0x%lx,%u, EPIPE %d.\n",
csk, csk->state, csk->flags, csk->tid, csk->err);
return -EPIPE;
}
if ((cdev->flags & CXGBI_FLAG_DEV_T3) &&
before((csk->snd_win + csk->snd_una), csk->write_seq)) {
log_debug(1 << CXGBI_DBG_PDU_TX,
"csk 0x%p,%u,0x%lx,%u, FULL %u-%u >= %u.\n",
csk, csk->state, csk->flags, csk->tid, csk->write_seq,
csk->snd_una, csk->snd_win);
return -ENOBUFS;
}
if (cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO))
iso_tx_rsvd = cdev->skb_iso_txhdr;
if (unlikely(skb_headroom(skb) < (cdev->skb_tx_rsvd + iso_tx_rsvd))) {
pr_err("csk 0x%p, skb head %u < %u.\n",
csk, skb_headroom(skb), cdev->skb_tx_rsvd);
return -EINVAL;
}
if (skb->len != skb->data_len)
frags++;
if (frags >= SKB_WR_LIST_SIZE) {
pr_err("csk 0x%p, frags %u, %u,%u >%u.\n",
csk, skb_shinfo(skb)->nr_frags, skb->len,
skb->data_len, (unsigned int)SKB_WR_LIST_SIZE);
return -EINVAL;
}
cxgbi_skcb_set_flag(skb, SKCBF_TX_NEED_HDR);
skb_reset_transport_header(skb);
cxgbi_sock_skb_entail(csk, skb);
extra_len = cxgbi_ulp_extra_len(cxgbi_skcb_tx_ulp_mode(skb));
if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO))) {
iso_cpl = (struct cxgbi_iso_info *)skb->head;
num_pdu = iso_cpl->num_pdu;
hdr_len = cxgbi_skcb_tx_iscsi_hdrlen(skb);
extra_len = (cxgbi_ulp_extra_len(cxgbi_skcb_tx_ulp_mode(skb)) *
num_pdu) + (hdr_len * (num_pdu - 1));
}
csk->write_seq += (skb->len + extra_len);
return 0;
}
static int cxgbi_sock_send_skb(struct cxgbi_sock *csk, struct sk_buff *skb)
{
struct cxgbi_device *cdev = csk->cdev;
int len = skb->len;
int err;
spin_lock_bh(&csk->lock);
err = cxgbi_sock_tx_queue_up(csk, skb);
if (err < 0) {
spin_unlock_bh(&csk->lock);
return err;
}
if (likely(skb_queue_len(&csk->write_queue)))
cdev->csk_push_tx_frames(csk, 0);
spin_unlock_bh(&csk->lock);
return len;
}
int cxgbi_conn_xmit_pdu(struct iscsi_task *task)
{
struct iscsi_tcp_conn *tcp_conn = task->conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
struct iscsi_tcp_task *tcp_task = task->dd_data;
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
struct cxgbi_task_tag_info *ttinfo = &tdata->ttinfo;
struct sk_buff *skb;
struct cxgbi_sock *csk = NULL;
u32 pdulen = 0;
u32 datalen;
int err;
if (!tcp_task || (tcp_task->dd_data != tdata)) {
pr_err("task 0x%p,0x%p, tcp_task 0x%p, tdata 0x%p/0x%p.\n",
task, task->sc, tcp_task,
tcp_task ? tcp_task->dd_data : NULL, tdata);
return -EINVAL;
}
skb = tdata->skb;
if (!skb) {
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"task 0x%p, skb NULL.\n", task);
return 0;
}
if (cconn && cconn->cep)
csk = cconn->cep->csk;
if (!csk) {
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"task 0x%p, csk gone.\n", task);
return -EPIPE;
}
tdata->skb = NULL;
datalen = skb->data_len;
/* write ppod first if using ofldq to write ppod */
if (ttinfo->flags & CXGBI_PPOD_INFO_FLAG_VALID) {
struct cxgbi_ppm *ppm = csk->cdev->cdev2ppm(csk->cdev);
ttinfo->flags &= ~CXGBI_PPOD_INFO_FLAG_VALID;
if (csk->cdev->csk_ddp_set_map(ppm, csk, ttinfo) < 0)
pr_err("task 0x%p, ppod writing using ofldq failed.\n",
task);
/* continue. Let fl get the data */
}
if (!task->sc)
memcpy(skb->data, task->hdr, SKB_TX_ISCSI_PDU_HEADER_MAX);
err = cxgbi_sock_send_skb(csk, skb);
if (err > 0) {
pdulen += err;
log_debug(1 << CXGBI_DBG_PDU_TX, "task 0x%p,0x%p, rv %d.\n",
task, task->sc, err);
if (task->conn->hdrdgst_en)
pdulen += ISCSI_DIGEST_SIZE;
if (datalen && task->conn->datadgst_en)
pdulen += ISCSI_DIGEST_SIZE;
task->conn->txdata_octets += pdulen;
if (unlikely(cxgbi_is_iso_config(csk) && cxgbi_is_iso_disabled(csk))) {
if (time_after(jiffies, csk->prev_iso_ts + HZ)) {
csk->disable_iso = false;
csk->prev_iso_ts = 0;
log_debug(1 << CXGBI_DBG_PDU_TX,
"enable iso: csk 0x%p\n", csk);
}
}
return 0;
}
if (err == -EAGAIN || err == -ENOBUFS) {
log_debug(1 << CXGBI_DBG_PDU_TX,
"task 0x%p, skb 0x%p, len %u/%u, %d EAGAIN.\n",
task, skb, skb->len, skb->data_len, err);
/* reset skb to send when we are called again */
tdata->skb = skb;
if (cxgbi_is_iso_config(csk) && !cxgbi_is_iso_disabled(csk) &&
(csk->no_tx_credits++ >= 2)) {
csk->disable_iso = true;
csk->prev_iso_ts = jiffies;
log_debug(1 << CXGBI_DBG_PDU_TX,
"disable iso:csk 0x%p, ts:%lu\n",
csk, csk->prev_iso_ts);
}
return err;
}
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"itt 0x%x, skb 0x%p, len %u/%u, xmit err %d.\n",
task->itt, skb, skb->len, skb->data_len, err);
__kfree_skb(skb);
iscsi_conn_printk(KERN_ERR, task->conn, "xmit err %d.\n", err);
iscsi_conn_failure(task->conn, ISCSI_ERR_XMIT_FAILED);
return err;
}
EXPORT_SYMBOL_GPL(cxgbi_conn_xmit_pdu);
void cxgbi_cleanup_task(struct iscsi_task *task)
{
struct iscsi_tcp_task *tcp_task = task->dd_data;
struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
if (!tcp_task || (tcp_task->dd_data != tdata)) {
pr_info("task 0x%p,0x%p, tcp_task 0x%p, tdata 0x%p/0x%p.\n",
task, task->sc, tcp_task,
tcp_task ? tcp_task->dd_data : NULL, tdata);
return;
}
log_debug(1 << CXGBI_DBG_ISCSI,
"task 0x%p, skb 0x%p, itt 0x%x.\n",
task, tdata->skb, task->hdr_itt);
tcp_task->dd_data = NULL;
if (!task->sc)
kfree(task->hdr);
task->hdr = NULL;
/* never reached the xmit task callout */
if (tdata->skb) {
__kfree_skb(tdata->skb);
tdata->skb = NULL;
}
task_release_itt(task, task->hdr_itt);
memset(tdata, 0, sizeof(*tdata));
iscsi_tcp_cleanup_task(task);
}
EXPORT_SYMBOL_GPL(cxgbi_cleanup_task);
void cxgbi_get_conn_stats(struct iscsi_cls_conn *cls_conn,
struct iscsi_stats *stats)
{
struct iscsi_conn *conn = cls_conn->dd_data;
stats->txdata_octets = conn->txdata_octets;
stats->rxdata_octets = conn->rxdata_octets;
stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
stats->dataout_pdus = conn->dataout_pdus_cnt;
stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
stats->datain_pdus = conn->datain_pdus_cnt;
stats->r2t_pdus = conn->r2t_pdus_cnt;
stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
stats->digest_err = 0;
stats->timeout_err = 0;
stats->custom_length = 1;
strcpy(stats->custom[0].desc, "eh_abort_cnt");
stats->custom[0].value = conn->eh_abort_cnt;
}
EXPORT_SYMBOL_GPL(cxgbi_get_conn_stats);
static int cxgbi_conn_max_xmit_dlength(struct iscsi_conn *conn)
{
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
struct cxgbi_device *cdev = cconn->chba->cdev;
unsigned int headroom = SKB_MAX_HEAD(cdev->skb_tx_rsvd);
unsigned int max_def = 512 * MAX_SKB_FRAGS;
unsigned int max = max(max_def, headroom);
max = min(cconn->chba->cdev->tx_max_size, max);
if (conn->max_xmit_dlength)
conn->max_xmit_dlength = min(conn->max_xmit_dlength, max);
else
conn->max_xmit_dlength = max;
cxgbi_align_pdu_size(conn->max_xmit_dlength);
return 0;
}
static int cxgbi_conn_max_recv_dlength(struct iscsi_conn *conn)
{
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
unsigned int max = cconn->chba->cdev->rx_max_size;
cxgbi_align_pdu_size(max);
if (conn->max_recv_dlength) {
if (conn->max_recv_dlength > max) {
pr_err("MaxRecvDataSegmentLength %u > %u.\n",
conn->max_recv_dlength, max);
return -EINVAL;
}
conn->max_recv_dlength = min(conn->max_recv_dlength, max);
cxgbi_align_pdu_size(conn->max_recv_dlength);
} else
conn->max_recv_dlength = max;
return 0;
}
int cxgbi_set_conn_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, char *buf, int buflen)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
struct cxgbi_sock *csk = cconn->cep->csk;
int err;
log_debug(1 << CXGBI_DBG_ISCSI,
"cls_conn 0x%p, param %d, buf(%d) %s.\n",
cls_conn, param, buflen, buf);
switch (param) {
case ISCSI_PARAM_HDRDGST_EN:
err = iscsi_set_param(cls_conn, param, buf, buflen);
if (!err && conn->hdrdgst_en)
err = csk->cdev->csk_ddp_setup_digest(csk, csk->tid,
conn->hdrdgst_en,
conn->datadgst_en);
break;
case ISCSI_PARAM_DATADGST_EN:
err = iscsi_set_param(cls_conn, param, buf, buflen);
if (!err && conn->datadgst_en)
err = csk->cdev->csk_ddp_setup_digest(csk, csk->tid,
conn->hdrdgst_en,
conn->datadgst_en);
break;
case ISCSI_PARAM_MAX_R2T:
return iscsi_tcp_set_max_r2t(conn, buf);
case ISCSI_PARAM_MAX_RECV_DLENGTH:
err = iscsi_set_param(cls_conn, param, buf, buflen);
if (!err)
err = cxgbi_conn_max_recv_dlength(conn);
break;
case ISCSI_PARAM_MAX_XMIT_DLENGTH:
err = iscsi_set_param(cls_conn, param, buf, buflen);
if (!err)
err = cxgbi_conn_max_xmit_dlength(conn);
break;
default:
return iscsi_set_param(cls_conn, param, buf, buflen);
}
return err;
}
EXPORT_SYMBOL_GPL(cxgbi_set_conn_param);
int cxgbi_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param param,
char *buf)
{
struct cxgbi_endpoint *cep = ep->dd_data;
struct cxgbi_sock *csk;
log_debug(1 << CXGBI_DBG_ISCSI,
"cls_conn 0x%p, param %d.\n", ep, param);
switch (param) {
case ISCSI_PARAM_CONN_PORT:
case ISCSI_PARAM_CONN_ADDRESS:
if (!cep)
return -ENOTCONN;
csk = cep->csk;
if (!csk)
return -ENOTCONN;
return iscsi_conn_get_addr_param((struct sockaddr_storage *)
&csk->daddr, param, buf);
default:
break;
}
return -ENOSYS;
}
EXPORT_SYMBOL_GPL(cxgbi_get_ep_param);
struct iscsi_cls_conn *
cxgbi_create_conn(struct iscsi_cls_session *cls_session, u32 cid)
{
struct iscsi_cls_conn *cls_conn;
struct iscsi_conn *conn;
struct iscsi_tcp_conn *tcp_conn;
struct cxgbi_conn *cconn;
cls_conn = iscsi_tcp_conn_setup(cls_session, sizeof(*cconn), cid);
if (!cls_conn)
return NULL;
conn = cls_conn->dd_data;
tcp_conn = conn->dd_data;
cconn = tcp_conn->dd_data;
cconn->iconn = conn;
log_debug(1 << CXGBI_DBG_ISCSI,
"cid %u(0x%x), cls 0x%p,0x%p, conn 0x%p,0x%p,0x%p.\n",
cid, cid, cls_session, cls_conn, conn, tcp_conn, cconn);
return cls_conn;
}
EXPORT_SYMBOL_GPL(cxgbi_create_conn);
int cxgbi_bind_conn(struct iscsi_cls_session *cls_session,
struct iscsi_cls_conn *cls_conn,
u64 transport_eph, int is_leading)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct cxgbi_conn *cconn = tcp_conn->dd_data;
struct cxgbi_ppm *ppm;
struct iscsi_endpoint *ep;
struct cxgbi_endpoint *cep;
struct cxgbi_sock *csk;
int err;
ep = iscsi_lookup_endpoint(transport_eph);
if (!ep)
return -EINVAL;
/* setup ddp pagesize */
cep = ep->dd_data;
csk = cep->csk;
ppm = csk->cdev->cdev2ppm(csk->cdev);
err = csk->cdev->csk_ddp_setup_pgidx(csk, csk->tid,
ppm->tformat.pgsz_idx_dflt);
if (err < 0)
goto put_ep;
err = iscsi_conn_bind(cls_session, cls_conn, is_leading);
if (err) {
err = -EINVAL;
goto put_ep;
}
/* calculate the tag idx bits needed for this conn based on cmds_max */
cconn->task_idx_bits = (__ilog2_u32(conn->session->cmds_max - 1)) + 1;
write_lock_bh(&csk->callback_lock);
csk->user_data = conn;
cconn->chba = cep->chba;
cconn->cep = cep;
cep->cconn = cconn;
write_unlock_bh(&csk->callback_lock);
cxgbi_conn_max_xmit_dlength(conn);
cxgbi_conn_max_recv_dlength(conn);
log_debug(1 << CXGBI_DBG_ISCSI,
"cls 0x%p,0x%p, ep 0x%p, cconn 0x%p, csk 0x%p.\n",
cls_session, cls_conn, ep, cconn, csk);
/* init recv engine */
iscsi_tcp_hdr_recv_prep(tcp_conn);
put_ep:
iscsi_put_endpoint(ep);
return err;
}
EXPORT_SYMBOL_GPL(cxgbi_bind_conn);
struct iscsi_cls_session *cxgbi_create_session(struct iscsi_endpoint *ep,
u16 cmds_max, u16 qdepth,
u32 initial_cmdsn)
{
struct cxgbi_endpoint *cep;
struct cxgbi_hba *chba;
struct Scsi_Host *shost;
struct iscsi_cls_session *cls_session;
struct iscsi_session *session;
if (!ep) {
pr_err("missing endpoint.\n");
return NULL;
}
cep = ep->dd_data;
chba = cep->chba;
shost = chba->shost;
BUG_ON(chba != iscsi_host_priv(shost));
cls_session = iscsi_session_setup(chba->cdev->itp, shost,
cmds_max, 0,
sizeof(struct iscsi_tcp_task) +
sizeof(struct cxgbi_task_data),
initial_cmdsn, ISCSI_MAX_TARGET);
if (!cls_session)
return NULL;
session = cls_session->dd_data;
if (iscsi_tcp_r2tpool_alloc(session))
goto remove_session;
log_debug(1 << CXGBI_DBG_ISCSI,
"ep 0x%p, cls sess 0x%p.\n", ep, cls_session);
return cls_session;
remove_session:
iscsi_session_teardown(cls_session);
return NULL;
}
EXPORT_SYMBOL_GPL(cxgbi_create_session);
void cxgbi_destroy_session(struct iscsi_cls_session *cls_session)
{
log_debug(1 << CXGBI_DBG_ISCSI,
"cls sess 0x%p.\n", cls_session);
iscsi_tcp_r2tpool_free(cls_session->dd_data);
iscsi_session_teardown(cls_session);
}
EXPORT_SYMBOL_GPL(cxgbi_destroy_session);
int cxgbi_set_host_param(struct Scsi_Host *shost, enum iscsi_host_param param,
char *buf, int buflen)
{
struct cxgbi_hba *chba = iscsi_host_priv(shost);
if (!chba->ndev) {
shost_printk(KERN_ERR, shost, "Could not get host param. "
"netdev for host not set.\n");
return -ENODEV;
}
log_debug(1 << CXGBI_DBG_ISCSI,
"shost 0x%p, hba 0x%p,%s, param %d, buf(%d) %s.\n",
shost, chba, chba->ndev->name, param, buflen, buf);
switch (param) {
case ISCSI_HOST_PARAM_IPADDRESS:
{
__be32 addr = in_aton(buf);
log_debug(1 << CXGBI_DBG_ISCSI,
"hba %s, req. ipv4 %pI4.\n", chba->ndev->name, &addr);
cxgbi_set_iscsi_ipv4(chba, addr);
return 0;
}
case ISCSI_HOST_PARAM_HWADDRESS:
case ISCSI_HOST_PARAM_NETDEV_NAME:
return 0;
default:
return iscsi_host_set_param(shost, param, buf, buflen);
}
}
EXPORT_SYMBOL_GPL(cxgbi_set_host_param);
int cxgbi_get_host_param(struct Scsi_Host *shost, enum iscsi_host_param param,
char *buf)
{
struct cxgbi_hba *chba = iscsi_host_priv(shost);
int len = 0;
if (!chba->ndev) {
shost_printk(KERN_ERR, shost, "Could not get host param. "
"netdev for host not set.\n");
return -ENODEV;
}
log_debug(1 << CXGBI_DBG_ISCSI,
"shost 0x%p, hba 0x%p,%s, param %d.\n",
shost, chba, chba->ndev->name, param);
switch (param) {
case ISCSI_HOST_PARAM_HWADDRESS:
len = sysfs_format_mac(buf, chba->ndev->dev_addr, 6);
break;
case ISCSI_HOST_PARAM_NETDEV_NAME:
len = sprintf(buf, "%s\n", chba->ndev->name);
break;
case ISCSI_HOST_PARAM_IPADDRESS:
{
struct cxgbi_sock *csk = find_sock_on_port(chba->cdev,
chba->port_id);
if (csk) {
len = sprintf(buf, "%pIS",
(struct sockaddr *)&csk->saddr);
}
log_debug(1 << CXGBI_DBG_ISCSI,
"hba %s, addr %s.\n", chba->ndev->name, buf);
break;
}
default:
return iscsi_host_get_param(shost, param, buf);
}
return len;
}
EXPORT_SYMBOL_GPL(cxgbi_get_host_param);
struct iscsi_endpoint *cxgbi_ep_connect(struct Scsi_Host *shost,
struct sockaddr *dst_addr,
int non_blocking)
{
struct iscsi_endpoint *ep;
struct cxgbi_endpoint *cep;
struct cxgbi_hba *hba = NULL;
struct cxgbi_sock *csk;
int ifindex = 0;
int err = -EINVAL;
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_SOCK,
"shost 0x%p, non_blocking %d, dst_addr 0x%p.\n",
shost, non_blocking, dst_addr);
if (shost) {
hba = iscsi_host_priv(shost);
if (!hba) {
pr_info("shost 0x%p, priv NULL.\n", shost);
goto err_out;
}
}
check_route:
if (dst_addr->sa_family == AF_INET) {
csk = cxgbi_check_route(dst_addr, ifindex);
#if IS_ENABLED(CONFIG_IPV6)
} else if (dst_addr->sa_family == AF_INET6) {
csk = cxgbi_check_route6(dst_addr, ifindex);
#endif
} else {
pr_info("address family 0x%x NOT supported.\n",
dst_addr->sa_family);
err = -EAFNOSUPPORT;
return (struct iscsi_endpoint *)ERR_PTR(err);
}
if (IS_ERR(csk))
return (struct iscsi_endpoint *)csk;
cxgbi_sock_get(csk);
if (!hba)
hba = csk->cdev->hbas[csk->port_id];
else if (hba != csk->cdev->hbas[csk->port_id]) {
if (ifindex != hba->ndev->ifindex) {
cxgbi_sock_put(csk);
cxgbi_sock_closed(csk);
ifindex = hba->ndev->ifindex;
goto check_route;
}
pr_info("Could not connect through requested host %u"
"hba 0x%p != 0x%p (%u).\n",
shost->host_no, hba,
csk->cdev->hbas[csk->port_id], csk->port_id);
err = -ENOSPC;
goto release_conn;
}
err = sock_get_port(csk);
if (err)
goto release_conn;
cxgbi_sock_set_state(csk, CTP_CONNECTING);
err = csk->cdev->csk_init_act_open(csk);
if (err)
goto release_conn;
if (cxgbi_sock_is_closing(csk)) {
err = -ENOSPC;
pr_info("csk 0x%p is closing.\n", csk);
goto release_conn;
}
ep = iscsi_create_endpoint(sizeof(*cep));
if (!ep) {
err = -ENOMEM;
pr_info("iscsi alloc ep, OOM.\n");
goto release_conn;
}
cep = ep->dd_data;
cep->csk = csk;
cep->chba = hba;
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_SOCK,
"ep 0x%p, cep 0x%p, csk 0x%p, hba 0x%p,%s.\n",
ep, cep, csk, hba, hba->ndev->name);
return ep;
release_conn:
cxgbi_sock_put(csk);
cxgbi_sock_closed(csk);
err_out:
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(cxgbi_ep_connect);
int cxgbi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
{
struct cxgbi_endpoint *cep = ep->dd_data;
struct cxgbi_sock *csk = cep->csk;
if (!cxgbi_sock_is_established(csk))
return 0;
return 1;
}
EXPORT_SYMBOL_GPL(cxgbi_ep_poll);
void cxgbi_ep_disconnect(struct iscsi_endpoint *ep)
{
struct cxgbi_endpoint *cep = ep->dd_data;
struct cxgbi_conn *cconn = cep->cconn;
struct cxgbi_sock *csk = cep->csk;
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_SOCK,
"ep 0x%p, cep 0x%p, cconn 0x%p, csk 0x%p,%u,0x%lx.\n",
ep, cep, cconn, csk, csk->state, csk->flags);
if (cconn && cconn->iconn) {
write_lock_bh(&csk->callback_lock);
cep->csk->user_data = NULL;
cconn->cep = NULL;
write_unlock_bh(&csk->callback_lock);
}
iscsi_destroy_endpoint(ep);
if (likely(csk->state >= CTP_ESTABLISHED))
need_active_close(csk);
else
cxgbi_sock_closed(csk);
cxgbi_sock_put(csk);
}
EXPORT_SYMBOL_GPL(cxgbi_ep_disconnect);
int cxgbi_iscsi_init(struct iscsi_transport *itp,
struct scsi_transport_template **stt)
{
*stt = iscsi_register_transport(itp);
if (*stt == NULL) {
pr_err("unable to register %s transport 0x%p.\n",
itp->name, itp);
return -ENODEV;
}
log_debug(1 << CXGBI_DBG_ISCSI,
"%s, registered iscsi transport 0x%p.\n",
itp->name, stt);
return 0;
}
EXPORT_SYMBOL_GPL(cxgbi_iscsi_init);
void cxgbi_iscsi_cleanup(struct iscsi_transport *itp,
struct scsi_transport_template **stt)
{
if (*stt) {
log_debug(1 << CXGBI_DBG_ISCSI,
"de-register transport 0x%p, %s, stt 0x%p.\n",
itp, itp->name, *stt);
*stt = NULL;
iscsi_unregister_transport(itp);
}
}
EXPORT_SYMBOL_GPL(cxgbi_iscsi_cleanup);
umode_t cxgbi_attr_is_visible(int param_type, int param)
{
switch (param_type) {
case ISCSI_HOST_PARAM:
switch (param) {
case ISCSI_HOST_PARAM_NETDEV_NAME:
case ISCSI_HOST_PARAM_HWADDRESS:
case ISCSI_HOST_PARAM_IPADDRESS:
case ISCSI_HOST_PARAM_INITIATOR_NAME:
return S_IRUGO;
default:
return 0;
}
case ISCSI_PARAM:
switch (param) {
case ISCSI_PARAM_MAX_RECV_DLENGTH:
case ISCSI_PARAM_MAX_XMIT_DLENGTH:
case ISCSI_PARAM_HDRDGST_EN:
case ISCSI_PARAM_DATADGST_EN:
case ISCSI_PARAM_CONN_ADDRESS:
case ISCSI_PARAM_CONN_PORT:
case ISCSI_PARAM_EXP_STATSN:
case ISCSI_PARAM_PERSISTENT_ADDRESS:
case ISCSI_PARAM_PERSISTENT_PORT:
case ISCSI_PARAM_PING_TMO:
case ISCSI_PARAM_RECV_TMO:
case ISCSI_PARAM_INITIAL_R2T_EN:
case ISCSI_PARAM_MAX_R2T:
case ISCSI_PARAM_IMM_DATA_EN:
case ISCSI_PARAM_FIRST_BURST:
case ISCSI_PARAM_MAX_BURST:
case ISCSI_PARAM_PDU_INORDER_EN:
case ISCSI_PARAM_DATASEQ_INORDER_EN:
case ISCSI_PARAM_ERL:
case ISCSI_PARAM_TARGET_NAME:
case ISCSI_PARAM_TPGT:
case ISCSI_PARAM_USERNAME:
case ISCSI_PARAM_PASSWORD:
case ISCSI_PARAM_USERNAME_IN:
case ISCSI_PARAM_PASSWORD_IN:
case ISCSI_PARAM_FAST_ABORT:
case ISCSI_PARAM_ABORT_TMO:
case ISCSI_PARAM_LU_RESET_TMO:
case ISCSI_PARAM_TGT_RESET_TMO:
case ISCSI_PARAM_IFACE_NAME:
case ISCSI_PARAM_INITIATOR_NAME:
return S_IRUGO;
default:
return 0;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(cxgbi_attr_is_visible);
static int __init libcxgbi_init_module(void)
{
pr_info("%s", version);
BUILD_BUG_ON(sizeof_field(struct sk_buff, cb) <
sizeof(struct cxgbi_skb_cb));
rsvd_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (!rsvd_page)
return -ENOMEM;
return 0;
}
static void __exit libcxgbi_exit_module(void)
{
cxgbi_device_unregister_all(0xFF);
put_page(rsvd_page);
return;
}
module_init(libcxgbi_init_module);
module_exit(libcxgbi_exit_module);
|
linux-master
|
drivers/scsi/cxgbi/libcxgbi.c
|
/*
* cxgb4i.c: Chelsio T4 iSCSI driver.
*
* Copyright (c) 2010-2015 Chelsio Communications, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Karen Xie ([email protected])
* Rakesh Ranjan ([email protected])
*/
#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <scsi/scsi_host.h>
#include <net/tcp.h>
#include <net/dst.h>
#include <linux/netdevice.h>
#include <net/addrconf.h>
#include "t4_regs.h"
#include "t4_msg.h"
#include "cxgb4.h"
#include "cxgb4_uld.h"
#include "t4fw_api.h"
#include "l2t.h"
#include "cxgb4i.h"
#include "clip_tbl.h"
static unsigned int dbg_level;
#include "../libcxgbi.h"
#ifdef CONFIG_CHELSIO_T4_DCB
#include <net/dcbevent.h>
#include "cxgb4_dcb.h"
#endif
#define DRV_MODULE_NAME "cxgb4i"
#define DRV_MODULE_DESC "Chelsio T4-T6 iSCSI Driver"
#define DRV_MODULE_VERSION "0.9.5-ko"
#define DRV_MODULE_RELDATE "Apr. 2015"
static char version[] =
DRV_MODULE_DESC " " DRV_MODULE_NAME
" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Chelsio Communications, Inc.");
MODULE_DESCRIPTION(DRV_MODULE_DESC);
MODULE_VERSION(DRV_MODULE_VERSION);
MODULE_LICENSE("GPL");
module_param(dbg_level, uint, 0644);
MODULE_PARM_DESC(dbg_level, "Debug flag (default=0)");
#define CXGB4I_DEFAULT_10G_RCV_WIN (256 * 1024)
static int cxgb4i_rcv_win = -1;
module_param(cxgb4i_rcv_win, int, 0644);
MODULE_PARM_DESC(cxgb4i_rcv_win, "TCP receive window in bytes");
#define CXGB4I_DEFAULT_10G_SND_WIN (128 * 1024)
static int cxgb4i_snd_win = -1;
module_param(cxgb4i_snd_win, int, 0644);
MODULE_PARM_DESC(cxgb4i_snd_win, "TCP send window in bytes");
static int cxgb4i_rx_credit_thres = 10 * 1024;
module_param(cxgb4i_rx_credit_thres, int, 0644);
MODULE_PARM_DESC(cxgb4i_rx_credit_thres,
"RX credits return threshold in bytes (default=10KB)");
static unsigned int cxgb4i_max_connect = (8 * 1024);
module_param(cxgb4i_max_connect, uint, 0644);
MODULE_PARM_DESC(cxgb4i_max_connect, "Maximum number of connections");
static unsigned short cxgb4i_sport_base = 20000;
module_param(cxgb4i_sport_base, ushort, 0644);
MODULE_PARM_DESC(cxgb4i_sport_base, "Starting port number (default 20000)");
typedef void (*cxgb4i_cplhandler_func)(struct cxgbi_device *, struct sk_buff *);
static void *t4_uld_add(const struct cxgb4_lld_info *);
static int t4_uld_rx_handler(void *, const __be64 *, const struct pkt_gl *);
static int t4_uld_state_change(void *, enum cxgb4_state state);
static inline int send_tx_flowc_wr(struct cxgbi_sock *);
static const struct cxgb4_uld_info cxgb4i_uld_info = {
.name = DRV_MODULE_NAME,
.nrxq = MAX_ULD_QSETS,
.ntxq = MAX_ULD_QSETS,
.rxq_size = 1024,
.lro = false,
.add = t4_uld_add,
.rx_handler = t4_uld_rx_handler,
.state_change = t4_uld_state_change,
};
static struct scsi_host_template cxgb4i_host_template = {
.module = THIS_MODULE,
.name = DRV_MODULE_NAME,
.proc_name = DRV_MODULE_NAME,
.can_queue = CXGB4I_SCSI_HOST_QDEPTH,
.queuecommand = iscsi_queuecommand,
.change_queue_depth = scsi_change_queue_depth,
.sg_tablesize = SG_ALL,
.max_sectors = 0xFFFF,
.cmd_per_lun = ISCSI_DEF_CMD_PER_LUN,
.eh_timed_out = iscsi_eh_cmd_timed_out,
.eh_abort_handler = iscsi_eh_abort,
.eh_device_reset_handler = iscsi_eh_device_reset,
.eh_target_reset_handler = iscsi_eh_recover_target,
.target_alloc = iscsi_target_alloc,
.dma_boundary = PAGE_SIZE - 1,
.this_id = -1,
.track_queue_depth = 1,
.cmd_size = sizeof(struct iscsi_cmd),
};
static struct iscsi_transport cxgb4i_iscsi_transport = {
.owner = THIS_MODULE,
.name = DRV_MODULE_NAME,
.caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST |
CAP_DATADGST | CAP_DIGEST_OFFLOAD |
CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO,
.attr_is_visible = cxgbi_attr_is_visible,
.get_host_param = cxgbi_get_host_param,
.set_host_param = cxgbi_set_host_param,
/* session management */
.create_session = cxgbi_create_session,
.destroy_session = cxgbi_destroy_session,
.get_session_param = iscsi_session_get_param,
/* connection management */
.create_conn = cxgbi_create_conn,
.bind_conn = cxgbi_bind_conn,
.unbind_conn = iscsi_conn_unbind,
.destroy_conn = iscsi_tcp_conn_teardown,
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_conn_stop,
.get_conn_param = iscsi_conn_get_param,
.set_param = cxgbi_set_conn_param,
.get_stats = cxgbi_get_conn_stats,
/* pdu xmit req from user space */
.send_pdu = iscsi_conn_send_pdu,
/* task */
.init_task = iscsi_tcp_task_init,
.xmit_task = iscsi_tcp_task_xmit,
.cleanup_task = cxgbi_cleanup_task,
/* pdu */
.alloc_pdu = cxgbi_conn_alloc_pdu,
.init_pdu = cxgbi_conn_init_pdu,
.xmit_pdu = cxgbi_conn_xmit_pdu,
.parse_pdu_itt = cxgbi_parse_pdu_itt,
/* TCP connect/disconnect */
.get_ep_param = cxgbi_get_ep_param,
.ep_connect = cxgbi_ep_connect,
.ep_poll = cxgbi_ep_poll,
.ep_disconnect = cxgbi_ep_disconnect,
/* Error recovery timeout call */
.session_recovery_timedout = iscsi_session_recovery_timedout,
};
#ifdef CONFIG_CHELSIO_T4_DCB
static int
cxgb4_dcb_change_notify(struct notifier_block *, unsigned long, void *);
static struct notifier_block cxgb4_dcb_change = {
.notifier_call = cxgb4_dcb_change_notify,
};
#endif
static struct scsi_transport_template *cxgb4i_stt;
/*
* CPL (Chelsio Protocol Language) defines a message passing interface between
* the host driver and Chelsio asic.
* The section below implments CPLs that related to iscsi tcp connection
* open/close/abort and data send/receive.
*/
#define RCV_BUFSIZ_MASK 0x3FFU
#define MAX_IMM_TX_PKT_LEN 256
static int push_tx_frames(struct cxgbi_sock *, int);
/*
* is_ofld_imm - check whether a packet can be sent as immediate data
* @skb: the packet
*
* Returns true if a packet can be sent as an offload WR with immediate
* data. We currently use the same limit as for Ethernet packets.
*/
static inline bool is_ofld_imm(const struct sk_buff *skb)
{
int len = skb->len;
if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR)))
len += sizeof(struct fw_ofld_tx_data_wr);
if (likely(cxgbi_skcb_test_flag((struct sk_buff *)skb, SKCBF_TX_ISO)))
len += sizeof(struct cpl_tx_data_iso);
return (len <= MAX_IMM_OFLD_TX_DATA_WR_LEN);
}
static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb,
struct l2t_entry *e)
{
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
int wscale = cxgbi_sock_compute_wscale(csk->mss_idx);
unsigned long long opt0;
unsigned int opt2;
unsigned int qid_atid = ((unsigned int)csk->atid) |
(((unsigned int)csk->rss_qid) << 14);
opt0 = KEEP_ALIVE_F |
WND_SCALE_V(wscale) |
MSS_IDX_V(csk->mss_idx) |
L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) |
TX_CHAN_V(csk->tx_chan) |
SMAC_SEL_V(csk->smac_idx) |
ULP_MODE_V(ULP_MODE_ISCSI) |
RCV_BUFSIZ_V(csk->rcv_win >> 10);
opt2 = RX_CHANNEL_V(0) |
RSS_QUEUE_VALID_F |
RSS_QUEUE_V(csk->rss_qid);
if (is_t4(lldi->adapter_type)) {
struct cpl_act_open_req *req =
(struct cpl_act_open_req *)skb->head;
INIT_TP_WR(req, 0);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
qid_atid));
req->local_port = csk->saddr.sin_port;
req->peer_port = csk->daddr.sin_port;
req->local_ip = csk->saddr.sin_addr.s_addr;
req->peer_ip = csk->daddr.sin_addr.s_addr;
req->opt0 = cpu_to_be64(opt0);
req->params = cpu_to_be32(cxgb4_select_ntuple(
csk->cdev->ports[csk->port_id],
csk->l2t));
opt2 |= RX_FC_VALID_F;
req->opt2 = cpu_to_be32(opt2);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk t4 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
csk, &req->local_ip, ntohs(req->local_port),
&req->peer_ip, ntohs(req->peer_port),
csk->atid, csk->rss_qid);
} else if (is_t5(lldi->adapter_type)) {
struct cpl_t5_act_open_req *req =
(struct cpl_t5_act_open_req *)skb->head;
u32 isn = (get_random_u32() & ~7UL) - 1;
INIT_TP_WR(req, 0);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
qid_atid));
req->local_port = csk->saddr.sin_port;
req->peer_port = csk->daddr.sin_port;
req->local_ip = csk->saddr.sin_addr.s_addr;
req->peer_ip = csk->daddr.sin_addr.s_addr;
req->opt0 = cpu_to_be64(opt0);
req->params = cpu_to_be64(FILTER_TUPLE_V(
cxgb4_select_ntuple(
csk->cdev->ports[csk->port_id],
csk->l2t)));
req->rsvd = cpu_to_be32(isn);
opt2 |= T5_ISS_VALID;
opt2 |= T5_OPT_2_VALID_F;
req->opt2 = cpu_to_be32(opt2);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk t5 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
csk, &req->local_ip, ntohs(req->local_port),
&req->peer_ip, ntohs(req->peer_port),
csk->atid, csk->rss_qid);
} else {
struct cpl_t6_act_open_req *req =
(struct cpl_t6_act_open_req *)skb->head;
u32 isn = (get_random_u32() & ~7UL) - 1;
INIT_TP_WR(req, 0);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
qid_atid));
req->local_port = csk->saddr.sin_port;
req->peer_port = csk->daddr.sin_port;
req->local_ip = csk->saddr.sin_addr.s_addr;
req->peer_ip = csk->daddr.sin_addr.s_addr;
req->opt0 = cpu_to_be64(opt0);
req->params = cpu_to_be64(FILTER_TUPLE_V(
cxgb4_select_ntuple(
csk->cdev->ports[csk->port_id],
csk->l2t)));
req->rsvd = cpu_to_be32(isn);
opt2 |= T5_ISS_VALID;
opt2 |= RX_FC_DISABLE_F;
opt2 |= T5_OPT_2_VALID_F;
req->opt2 = cpu_to_be32(opt2);
req->rsvd2 = cpu_to_be32(0);
req->opt3 = cpu_to_be32(0);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk t6 0x%p, %pI4:%u-%pI4:%u, atid %d, qid %u.\n",
csk, &req->local_ip, ntohs(req->local_port),
&req->peer_ip, ntohs(req->peer_port),
csk->atid, csk->rss_qid);
}
set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id);
pr_info_ipaddr("t%d csk 0x%p,%u,0x%lx,%u, rss_qid %u.\n",
(&csk->saddr), (&csk->daddr),
CHELSIO_CHIP_VERSION(lldi->adapter_type), csk,
csk->state, csk->flags, csk->atid, csk->rss_qid);
cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
}
#if IS_ENABLED(CONFIG_IPV6)
static void send_act_open_req6(struct cxgbi_sock *csk, struct sk_buff *skb,
struct l2t_entry *e)
{
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
int wscale = cxgbi_sock_compute_wscale(csk->mss_idx);
unsigned long long opt0;
unsigned int opt2;
unsigned int qid_atid = ((unsigned int)csk->atid) |
(((unsigned int)csk->rss_qid) << 14);
opt0 = KEEP_ALIVE_F |
WND_SCALE_V(wscale) |
MSS_IDX_V(csk->mss_idx) |
L2T_IDX_V(((struct l2t_entry *)csk->l2t)->idx) |
TX_CHAN_V(csk->tx_chan) |
SMAC_SEL_V(csk->smac_idx) |
ULP_MODE_V(ULP_MODE_ISCSI) |
RCV_BUFSIZ_V(csk->rcv_win >> 10);
opt2 = RX_CHANNEL_V(0) |
RSS_QUEUE_VALID_F |
RSS_QUEUE_V(csk->rss_qid);
if (is_t4(lldi->adapter_type)) {
struct cpl_act_open_req6 *req =
(struct cpl_act_open_req6 *)skb->head;
INIT_TP_WR(req, 0);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6,
qid_atid));
req->local_port = csk->saddr6.sin6_port;
req->peer_port = csk->daddr6.sin6_port;
req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr);
req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr +
8);
req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr);
req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr +
8);
req->opt0 = cpu_to_be64(opt0);
opt2 |= RX_FC_VALID_F;
req->opt2 = cpu_to_be32(opt2);
req->params = cpu_to_be32(cxgb4_select_ntuple(
csk->cdev->ports[csk->port_id],
csk->l2t));
} else if (is_t5(lldi->adapter_type)) {
struct cpl_t5_act_open_req6 *req =
(struct cpl_t5_act_open_req6 *)skb->head;
INIT_TP_WR(req, 0);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6,
qid_atid));
req->local_port = csk->saddr6.sin6_port;
req->peer_port = csk->daddr6.sin6_port;
req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr);
req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr +
8);
req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr);
req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr +
8);
req->opt0 = cpu_to_be64(opt0);
opt2 |= T5_OPT_2_VALID_F;
req->opt2 = cpu_to_be32(opt2);
req->params = cpu_to_be64(FILTER_TUPLE_V(cxgb4_select_ntuple(
csk->cdev->ports[csk->port_id],
csk->l2t)));
} else {
struct cpl_t6_act_open_req6 *req =
(struct cpl_t6_act_open_req6 *)skb->head;
INIT_TP_WR(req, 0);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6,
qid_atid));
req->local_port = csk->saddr6.sin6_port;
req->peer_port = csk->daddr6.sin6_port;
req->local_ip_hi = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr);
req->local_ip_lo = *(__be64 *)(csk->saddr6.sin6_addr.s6_addr +
8);
req->peer_ip_hi = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr);
req->peer_ip_lo = *(__be64 *)(csk->daddr6.sin6_addr.s6_addr +
8);
req->opt0 = cpu_to_be64(opt0);
opt2 |= RX_FC_DISABLE_F;
opt2 |= T5_OPT_2_VALID_F;
req->opt2 = cpu_to_be32(opt2);
req->params = cpu_to_be64(FILTER_TUPLE_V(cxgb4_select_ntuple(
csk->cdev->ports[csk->port_id],
csk->l2t)));
req->rsvd2 = cpu_to_be32(0);
req->opt3 = cpu_to_be32(0);
}
set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id);
pr_info("t%d csk 0x%p,%u,0x%lx,%u, [%pI6]:%u-[%pI6]:%u, rss_qid %u.\n",
CHELSIO_CHIP_VERSION(lldi->adapter_type), csk, csk->state,
csk->flags, csk->atid,
&csk->saddr6.sin6_addr, ntohs(csk->saddr.sin_port),
&csk->daddr6.sin6_addr, ntohs(csk->daddr.sin_port),
csk->rss_qid);
cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
}
#endif
static void send_close_req(struct cxgbi_sock *csk)
{
struct sk_buff *skb = csk->cpl_close;
struct cpl_close_con_req *req = (struct cpl_close_con_req *)skb->head;
unsigned int tid = csk->tid;
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx, tid %u.\n",
csk, csk->state, csk->flags, csk->tid);
csk->cpl_close = NULL;
set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
INIT_TP_WR(req, tid);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_CLOSE_CON_REQ, tid));
req->rsvd = 0;
cxgbi_sock_skb_entail(csk, skb);
if (csk->state >= CTP_ESTABLISHED)
push_tx_frames(csk, 1);
}
static void abort_arp_failure(void *handle, struct sk_buff *skb)
{
struct cxgbi_sock *csk = (struct cxgbi_sock *)handle;
struct cpl_abort_req *req;
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx, tid %u, abort.\n",
csk, csk->state, csk->flags, csk->tid);
req = (struct cpl_abort_req *)skb->data;
req->cmd = CPL_ABORT_NO_RST;
cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
}
static void send_abort_req(struct cxgbi_sock *csk)
{
struct cpl_abort_req *req;
struct sk_buff *skb = csk->cpl_abort_req;
if (unlikely(csk->state == CTP_ABORTING) || !skb || !csk->cdev)
return;
if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) {
send_tx_flowc_wr(csk);
cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT);
}
cxgbi_sock_set_state(csk, CTP_ABORTING);
cxgbi_sock_set_flag(csk, CTPF_ABORT_RPL_PENDING);
cxgbi_sock_purge_write_queue(csk);
csk->cpl_abort_req = NULL;
req = (struct cpl_abort_req *)skb->head;
set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
req->cmd = CPL_ABORT_SEND_RST;
t4_set_arp_err_handler(skb, csk, abort_arp_failure);
INIT_TP_WR(req, csk->tid);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, csk->tid));
req->rsvd0 = htonl(csk->snd_nxt);
req->rsvd1 = !cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u, snd_nxt %u, 0x%x.\n",
csk, csk->state, csk->flags, csk->tid, csk->snd_nxt,
req->rsvd1);
cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
}
static void send_abort_rpl(struct cxgbi_sock *csk, int rst_status)
{
struct sk_buff *skb = csk->cpl_abort_rpl;
struct cpl_abort_rpl *rpl = (struct cpl_abort_rpl *)skb->head;
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u, status %d.\n",
csk, csk->state, csk->flags, csk->tid, rst_status);
csk->cpl_abort_rpl = NULL;
set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
INIT_TP_WR(rpl, csk->tid);
OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_RPL, csk->tid));
rpl->cmd = rst_status;
cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
}
/*
* CPL connection rx data ack: host ->
* Send RX credits through an RX_DATA_ACK CPL message. Returns the number of
* credits sent.
*/
static u32 send_rx_credits(struct cxgbi_sock *csk, u32 credits)
{
struct sk_buff *skb;
struct cpl_rx_data_ack *req;
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx,%u, credit %u.\n",
csk, csk->state, csk->flags, csk->tid, credits);
skb = alloc_wr(sizeof(*req), 0, GFP_ATOMIC);
if (!skb) {
pr_info("csk 0x%p, credit %u, OOM.\n", csk, credits);
return 0;
}
req = (struct cpl_rx_data_ack *)skb->head;
set_wr_txq(skb, CPL_PRIORITY_ACK, csk->port_id);
INIT_TP_WR(req, csk->tid);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_RX_DATA_ACK,
csk->tid));
req->credit_dack = cpu_to_be32(RX_CREDITS_V(credits)
| RX_FORCE_ACK_F);
cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
return credits;
}
/*
* sgl_len - calculates the size of an SGL of the given capacity
* @n: the number of SGL entries
* Calculates the number of flits needed for a scatter/gather list that
* can hold the given number of entries.
*/
static inline unsigned int sgl_len(unsigned int n)
{
n--;
return (3 * n) / 2 + (n & 1) + 2;
}
/*
* calc_tx_flits_ofld - calculate # of flits for an offload packet
* @skb: the packet
*
* Returns the number of flits needed for the given offload packet.
* These packets are already fully constructed and no additional headers
* will be added.
*/
static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb)
{
unsigned int flits, cnt;
if (is_ofld_imm(skb))
return DIV_ROUND_UP(skb->len, 8);
flits = skb_transport_offset(skb) / 8;
cnt = skb_shinfo(skb)->nr_frags;
if (skb_tail_pointer(skb) != skb_transport_header(skb))
cnt++;
return flits + sgl_len(cnt);
}
#define FLOWC_WR_NPARAMS_MIN 9
static inline int tx_flowc_wr_credits(int *nparamsp, int *flowclenp)
{
int nparams, flowclen16, flowclen;
nparams = FLOWC_WR_NPARAMS_MIN;
#ifdef CONFIG_CHELSIO_T4_DCB
nparams++;
#endif
flowclen = offsetof(struct fw_flowc_wr, mnemval[nparams]);
flowclen16 = DIV_ROUND_UP(flowclen, 16);
flowclen = flowclen16 * 16;
/*
* Return the number of 16-byte credits used by the FlowC request.
* Pass back the nparams and actual FlowC length if requested.
*/
if (nparamsp)
*nparamsp = nparams;
if (flowclenp)
*flowclenp = flowclen;
return flowclen16;
}
static inline int send_tx_flowc_wr(struct cxgbi_sock *csk)
{
struct sk_buff *skb;
struct fw_flowc_wr *flowc;
int nparams, flowclen16, flowclen;
#ifdef CONFIG_CHELSIO_T4_DCB
u16 vlan = ((struct l2t_entry *)csk->l2t)->vlan;
#endif
flowclen16 = tx_flowc_wr_credits(&nparams, &flowclen);
skb = alloc_wr(flowclen, 0, GFP_ATOMIC);
flowc = (struct fw_flowc_wr *)skb->head;
flowc->op_to_nparams =
htonl(FW_WR_OP_V(FW_FLOWC_WR) | FW_FLOWC_WR_NPARAMS_V(nparams));
flowc->flowid_len16 =
htonl(FW_WR_LEN16_V(flowclen16) | FW_WR_FLOWID_V(csk->tid));
flowc->mnemval[0].mnemonic = FW_FLOWC_MNEM_PFNVFN;
flowc->mnemval[0].val = htonl(csk->cdev->pfvf);
flowc->mnemval[1].mnemonic = FW_FLOWC_MNEM_CH;
flowc->mnemval[1].val = htonl(csk->tx_chan);
flowc->mnemval[2].mnemonic = FW_FLOWC_MNEM_PORT;
flowc->mnemval[2].val = htonl(csk->tx_chan);
flowc->mnemval[3].mnemonic = FW_FLOWC_MNEM_IQID;
flowc->mnemval[3].val = htonl(csk->rss_qid);
flowc->mnemval[4].mnemonic = FW_FLOWC_MNEM_SNDNXT;
flowc->mnemval[4].val = htonl(csk->snd_nxt);
flowc->mnemval[5].mnemonic = FW_FLOWC_MNEM_RCVNXT;
flowc->mnemval[5].val = htonl(csk->rcv_nxt);
flowc->mnemval[6].mnemonic = FW_FLOWC_MNEM_SNDBUF;
flowc->mnemval[6].val = htonl(csk->snd_win);
flowc->mnemval[7].mnemonic = FW_FLOWC_MNEM_MSS;
flowc->mnemval[7].val = htonl(csk->advmss);
flowc->mnemval[8].mnemonic = 0;
flowc->mnemval[8].val = 0;
flowc->mnemval[8].mnemonic = FW_FLOWC_MNEM_TXDATAPLEN_MAX;
if (csk->cdev->skb_iso_txhdr)
flowc->mnemval[8].val = cpu_to_be32(CXGBI_MAX_ISO_DATA_IN_SKB);
else
flowc->mnemval[8].val = cpu_to_be32(16128);
#ifdef CONFIG_CHELSIO_T4_DCB
flowc->mnemval[9].mnemonic = FW_FLOWC_MNEM_DCBPRIO;
if (vlan == CPL_L2T_VLAN_NONE) {
pr_warn_ratelimited("csk %u without VLAN Tag on DCB Link\n",
csk->tid);
flowc->mnemval[9].val = cpu_to_be32(0);
} else {
flowc->mnemval[9].val = cpu_to_be32((vlan & VLAN_PRIO_MASK) >>
VLAN_PRIO_SHIFT);
}
#endif
set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p, tid 0x%x, %u,%u,%u,%u,%u,%u,%u.\n",
csk, csk->tid, 0, csk->tx_chan, csk->rss_qid,
csk->snd_nxt, csk->rcv_nxt, csk->snd_win,
csk->advmss);
cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
return flowclen16;
}
static void
cxgb4i_make_tx_iso_cpl(struct sk_buff *skb, struct cpl_tx_data_iso *cpl)
{
struct cxgbi_iso_info *info = (struct cxgbi_iso_info *)skb->head;
u32 imm_en = !!(info->flags & CXGBI_ISO_INFO_IMM_ENABLE);
u32 fslice = !!(info->flags & CXGBI_ISO_INFO_FSLICE);
u32 lslice = !!(info->flags & CXGBI_ISO_INFO_LSLICE);
u32 pdu_type = (info->op == ISCSI_OP_SCSI_CMD) ? 0 : 1;
u32 submode = cxgbi_skcb_tx_ulp_mode(skb) & 0x3;
cpl->op_to_scsi = cpu_to_be32(CPL_TX_DATA_ISO_OP_V(CPL_TX_DATA_ISO) |
CPL_TX_DATA_ISO_FIRST_V(fslice) |
CPL_TX_DATA_ISO_LAST_V(lslice) |
CPL_TX_DATA_ISO_CPLHDRLEN_V(0) |
CPL_TX_DATA_ISO_HDRCRC_V(submode & 1) |
CPL_TX_DATA_ISO_PLDCRC_V(((submode >> 1) & 1)) |
CPL_TX_DATA_ISO_IMMEDIATE_V(imm_en) |
CPL_TX_DATA_ISO_SCSI_V(pdu_type));
cpl->ahs_len = info->ahs;
cpl->mpdu = cpu_to_be16(DIV_ROUND_UP(info->mpdu, 4));
cpl->burst_size = cpu_to_be32(info->burst_size);
cpl->len = cpu_to_be32(info->len);
cpl->reserved2_seglen_offset =
cpu_to_be32(CPL_TX_DATA_ISO_SEGLEN_OFFSET_V(info->segment_offset));
cpl->datasn_offset = cpu_to_be32(info->datasn_offset);
cpl->buffer_offset = cpu_to_be32(info->buffer_offset);
cpl->reserved3 = cpu_to_be32(0);
log_debug(1 << CXGBI_DBG_ISCSI | 1 << CXGBI_DBG_PDU_TX,
"iso: flags 0x%x, op %u, ahs %u, num_pdu %u, mpdu %u, "
"burst_size %u, iso_len %u\n",
info->flags, info->op, info->ahs, info->num_pdu,
info->mpdu, info->burst_size << 2, info->len);
}
static void
cxgb4i_make_tx_data_wr(struct cxgbi_sock *csk, struct sk_buff *skb, int dlen,
int len, u32 credits, int compl)
{
struct cxgbi_device *cdev = csk->cdev;
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct fw_ofld_tx_data_wr *req;
struct cpl_tx_data_iso *cpl;
u32 submode = cxgbi_skcb_tx_ulp_mode(skb) & 0x3;
u32 wr_ulp_mode = 0;
u32 hdr_size = sizeof(*req);
u32 opcode = FW_OFLD_TX_DATA_WR;
u32 immlen = 0;
u32 force = is_t5(lldi->adapter_type) ? TX_FORCE_V(!submode) :
T6_TX_FORCE_F;
if (cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO)) {
hdr_size += sizeof(struct cpl_tx_data_iso);
opcode = FW_ISCSI_TX_DATA_WR;
immlen += sizeof(struct cpl_tx_data_iso);
submode |= 8;
}
if (is_ofld_imm(skb))
immlen += dlen;
req = (struct fw_ofld_tx_data_wr *)__skb_push(skb, hdr_size);
req->op_to_immdlen = cpu_to_be32(FW_WR_OP_V(opcode) |
FW_WR_COMPL_V(compl) |
FW_WR_IMMDLEN_V(immlen));
req->flowid_len16 = cpu_to_be32(FW_WR_FLOWID_V(csk->tid) |
FW_WR_LEN16_V(credits));
req->plen = cpu_to_be32(len);
cpl = (struct cpl_tx_data_iso *)(req + 1);
if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO)))
cxgb4i_make_tx_iso_cpl(skb, cpl);
if (submode)
wr_ulp_mode = FW_OFLD_TX_DATA_WR_ULPMODE_V(ULP2_MODE_ISCSI) |
FW_OFLD_TX_DATA_WR_ULPSUBMODE_V(submode);
req->tunnel_to_proxy = cpu_to_be32(wr_ulp_mode | force |
FW_OFLD_TX_DATA_WR_SHOVE_V(1U));
if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT))
cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT);
}
static void arp_failure_skb_discard(void *handle, struct sk_buff *skb)
{
kfree_skb(skb);
}
static int push_tx_frames(struct cxgbi_sock *csk, int req_completion)
{
int total_size = 0;
struct sk_buff *skb;
if (unlikely(csk->state < CTP_ESTABLISHED ||
csk->state == CTP_CLOSE_WAIT_1 || csk->state >= CTP_ABORTING)) {
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK |
1 << CXGBI_DBG_PDU_TX,
"csk 0x%p,%u,0x%lx,%u, in closing state.\n",
csk, csk->state, csk->flags, csk->tid);
return 0;
}
while (csk->wr_cred && ((skb = skb_peek(&csk->write_queue)) != NULL)) {
struct cxgbi_iso_info *iso_cpl;
u32 dlen = skb->len;
u32 len = skb->len;
u32 iso_cpl_len = 0;
u32 flowclen16 = 0;
u32 credits_needed;
u32 num_pdu = 1, hdr_len;
if (cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO))
iso_cpl_len = sizeof(struct cpl_tx_data_iso);
if (is_ofld_imm(skb))
credits_needed = DIV_ROUND_UP(dlen + iso_cpl_len, 16);
else
credits_needed =
DIV_ROUND_UP((8 * calc_tx_flits_ofld(skb)) +
iso_cpl_len, 16);
if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR)))
credits_needed +=
DIV_ROUND_UP(sizeof(struct fw_ofld_tx_data_wr), 16);
/*
* Assumes the initial credits is large enough to support
* fw_flowc_wr plus largest possible first payload
*/
if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) {
flowclen16 = send_tx_flowc_wr(csk);
csk->wr_cred -= flowclen16;
csk->wr_una_cred += flowclen16;
cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT);
}
if (csk->wr_cred < credits_needed) {
log_debug(1 << CXGBI_DBG_PDU_TX,
"csk 0x%p, skb %u/%u, wr %d < %u.\n",
csk, skb->len, skb->data_len,
credits_needed, csk->wr_cred);
csk->no_tx_credits++;
break;
}
csk->no_tx_credits = 0;
__skb_unlink(skb, &csk->write_queue);
set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
skb->csum = (__force __wsum)(credits_needed + flowclen16);
csk->wr_cred -= credits_needed;
csk->wr_una_cred += credits_needed;
cxgbi_sock_enqueue_wr(csk, skb);
log_debug(1 << CXGBI_DBG_PDU_TX,
"csk 0x%p, skb %u/%u, wr %d, left %u, unack %u.\n",
csk, skb->len, skb->data_len, credits_needed,
csk->wr_cred, csk->wr_una_cred);
if (!req_completion &&
((csk->wr_una_cred >= (csk->wr_max_cred / 2)) ||
after(csk->write_seq, (csk->snd_una + csk->snd_win / 2))))
req_completion = 1;
if (likely(cxgbi_skcb_test_flag(skb, SKCBF_TX_NEED_HDR))) {
u32 ulp_mode = cxgbi_skcb_tx_ulp_mode(skb);
if (cxgbi_skcb_test_flag(skb, SKCBF_TX_ISO)) {
iso_cpl = (struct cxgbi_iso_info *)skb->head;
num_pdu = iso_cpl->num_pdu;
hdr_len = cxgbi_skcb_tx_iscsi_hdrlen(skb);
len += (cxgbi_ulp_extra_len(ulp_mode) * num_pdu) +
(hdr_len * (num_pdu - 1));
} else {
len += cxgbi_ulp_extra_len(ulp_mode);
}
cxgb4i_make_tx_data_wr(csk, skb, dlen, len,
credits_needed, req_completion);
csk->snd_nxt += len;
cxgbi_skcb_clear_flag(skb, SKCBF_TX_NEED_HDR);
} else if (cxgbi_skcb_test_flag(skb, SKCBF_TX_FLAG_COMPL) &&
(csk->wr_una_cred >= (csk->wr_max_cred / 2))) {
struct cpl_close_con_req *req =
(struct cpl_close_con_req *)skb->data;
req->wr.wr_hi |= cpu_to_be32(FW_WR_COMPL_F);
}
total_size += skb->truesize;
t4_set_arp_err_handler(skb, csk, arp_failure_skb_discard);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_TX,
"csk 0x%p,%u,0x%lx,%u, skb 0x%p, %u.\n",
csk, csk->state, csk->flags, csk->tid, skb, len);
cxgb4_l2t_send(csk->cdev->ports[csk->port_id], skb, csk->l2t);
}
return total_size;
}
static inline void free_atid(struct cxgbi_sock *csk)
{
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
if (cxgbi_sock_flag(csk, CTPF_HAS_ATID)) {
cxgb4_free_atid(lldi->tids, csk->atid);
cxgbi_sock_clear_flag(csk, CTPF_HAS_ATID);
cxgbi_sock_put(csk);
}
}
static void do_act_establish(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_act_establish *req = (struct cpl_act_establish *)skb->data;
unsigned short tcp_opt = ntohs(req->tcp_opt);
unsigned int tid = GET_TID(req);
unsigned int atid = TID_TID_G(ntohl(req->tos_atid));
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
u32 rcv_isn = be32_to_cpu(req->rcv_isn);
csk = lookup_atid(t, atid);
if (unlikely(!csk)) {
pr_err("NO conn. for atid %u, cdev 0x%p.\n", atid, cdev);
goto rel_skb;
}
if (csk->atid != atid) {
pr_err("bad conn atid %u, csk 0x%p,%u,0x%lx,tid %u, atid %u.\n",
atid, csk, csk->state, csk->flags, csk->tid, csk->atid);
goto rel_skb;
}
pr_info_ipaddr("atid 0x%x, tid 0x%x, csk 0x%p,%u,0x%lx, isn %u.\n",
(&csk->saddr), (&csk->daddr),
atid, tid, csk, csk->state, csk->flags, rcv_isn);
module_put(cdev->owner);
cxgbi_sock_get(csk);
csk->tid = tid;
cxgb4_insert_tid(lldi->tids, csk, tid, csk->csk_family);
cxgbi_sock_set_flag(csk, CTPF_HAS_TID);
free_atid(csk);
spin_lock_bh(&csk->lock);
if (unlikely(csk->state != CTP_ACTIVE_OPEN))
pr_info("csk 0x%p,%u,0x%lx,%u, got EST.\n",
csk, csk->state, csk->flags, csk->tid);
if (csk->retry_timer.function) {
del_timer(&csk->retry_timer);
csk->retry_timer.function = NULL;
}
csk->copied_seq = csk->rcv_wup = csk->rcv_nxt = rcv_isn;
/*
* Causes the first RX_DATA_ACK to supply any Rx credits we couldn't
* pass through opt0.
*/
if (csk->rcv_win > (RCV_BUFSIZ_MASK << 10))
csk->rcv_wup -= csk->rcv_win - (RCV_BUFSIZ_MASK << 10);
csk->advmss = lldi->mtus[TCPOPT_MSS_G(tcp_opt)] - 40;
if (TCPOPT_TSTAMP_G(tcp_opt))
csk->advmss -= 12;
if (csk->advmss < 128)
csk->advmss = 128;
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p, mss_idx %u, advmss %u.\n",
csk, TCPOPT_MSS_G(tcp_opt), csk->advmss);
cxgbi_sock_established(csk, ntohl(req->snd_isn), ntohs(req->tcp_opt));
if (unlikely(cxgbi_sock_flag(csk, CTPF_ACTIVE_CLOSE_NEEDED)))
send_abort_req(csk);
else {
if (skb_queue_len(&csk->write_queue))
push_tx_frames(csk, 0);
cxgbi_conn_tx_open(csk);
}
spin_unlock_bh(&csk->lock);
rel_skb:
__kfree_skb(skb);
}
static int act_open_rpl_status_to_errno(int status)
{
switch (status) {
case CPL_ERR_CONN_RESET:
return -ECONNREFUSED;
case CPL_ERR_ARP_MISS:
return -EHOSTUNREACH;
case CPL_ERR_CONN_TIMEDOUT:
return -ETIMEDOUT;
case CPL_ERR_TCAM_FULL:
return -ENOMEM;
case CPL_ERR_CONN_EXIST:
return -EADDRINUSE;
default:
return -EIO;
}
}
static void csk_act_open_retry_timer(struct timer_list *t)
{
struct sk_buff *skb = NULL;
struct cxgbi_sock *csk = from_timer(csk, t, retry_timer);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
void (*send_act_open_func)(struct cxgbi_sock *, struct sk_buff *,
struct l2t_entry *);
int t4 = is_t4(lldi->adapter_type), size, size6;
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u.\n",
csk, csk->state, csk->flags, csk->tid);
cxgbi_sock_get(csk);
spin_lock_bh(&csk->lock);
if (t4) {
size = sizeof(struct cpl_act_open_req);
size6 = sizeof(struct cpl_act_open_req6);
} else {
size = sizeof(struct cpl_t5_act_open_req);
size6 = sizeof(struct cpl_t5_act_open_req6);
}
if (csk->csk_family == AF_INET) {
send_act_open_func = send_act_open_req;
skb = alloc_wr(size, 0, GFP_ATOMIC);
#if IS_ENABLED(CONFIG_IPV6)
} else {
send_act_open_func = send_act_open_req6;
skb = alloc_wr(size6, 0, GFP_ATOMIC);
#endif
}
if (!skb)
cxgbi_sock_fail_act_open(csk, -ENOMEM);
else {
skb->sk = (struct sock *)csk;
t4_set_arp_err_handler(skb, csk,
cxgbi_sock_act_open_req_arp_failure);
send_act_open_func(csk, skb, csk->l2t);
}
spin_unlock_bh(&csk->lock);
cxgbi_sock_put(csk);
}
static inline bool is_neg_adv(unsigned int status)
{
return status == CPL_ERR_RTX_NEG_ADVICE ||
status == CPL_ERR_KEEPALV_NEG_ADVICE ||
status == CPL_ERR_PERSIST_NEG_ADVICE;
}
static void do_act_open_rpl(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_act_open_rpl *rpl = (struct cpl_act_open_rpl *)skb->data;
unsigned int tid = GET_TID(rpl);
unsigned int atid =
TID_TID_G(AOPEN_ATID_G(be32_to_cpu(rpl->atid_status)));
unsigned int status = AOPEN_STATUS_G(be32_to_cpu(rpl->atid_status));
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
csk = lookup_atid(t, atid);
if (unlikely(!csk)) {
pr_err("NO matching conn. atid %u, tid %u.\n", atid, tid);
goto rel_skb;
}
pr_info_ipaddr("tid %u/%u, status %u.\n"
"csk 0x%p,%u,0x%lx. ", (&csk->saddr), (&csk->daddr),
atid, tid, status, csk, csk->state, csk->flags);
if (is_neg_adv(status))
goto rel_skb;
module_put(cdev->owner);
if (status && status != CPL_ERR_TCAM_FULL &&
status != CPL_ERR_CONN_EXIST &&
status != CPL_ERR_ARP_MISS)
cxgb4_remove_tid(lldi->tids, csk->port_id, GET_TID(rpl),
csk->csk_family);
cxgbi_sock_get(csk);
spin_lock_bh(&csk->lock);
if (status == CPL_ERR_CONN_EXIST &&
csk->retry_timer.function != csk_act_open_retry_timer) {
csk->retry_timer.function = csk_act_open_retry_timer;
mod_timer(&csk->retry_timer, jiffies + HZ / 2);
} else
cxgbi_sock_fail_act_open(csk,
act_open_rpl_status_to_errno(status));
spin_unlock_bh(&csk->lock);
cxgbi_sock_put(csk);
rel_skb:
__kfree_skb(skb);
}
static void do_peer_close(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_peer_close *req = (struct cpl_peer_close *)skb->data;
unsigned int tid = GET_TID(req);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
csk = lookup_tid(t, tid);
if (unlikely(!csk)) {
pr_err("can't find connection for tid %u.\n", tid);
goto rel_skb;
}
pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n",
(&csk->saddr), (&csk->daddr),
csk, csk->state, csk->flags, csk->tid);
cxgbi_sock_rcv_peer_close(csk);
rel_skb:
__kfree_skb(skb);
}
static void do_close_con_rpl(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_close_con_rpl *rpl = (struct cpl_close_con_rpl *)skb->data;
unsigned int tid = GET_TID(rpl);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
csk = lookup_tid(t, tid);
if (unlikely(!csk)) {
pr_err("can't find connection for tid %u.\n", tid);
goto rel_skb;
}
pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u.\n",
(&csk->saddr), (&csk->daddr),
csk, csk->state, csk->flags, csk->tid);
cxgbi_sock_rcv_close_conn_rpl(csk, ntohl(rpl->snd_nxt));
rel_skb:
__kfree_skb(skb);
}
static int abort_status_to_errno(struct cxgbi_sock *csk, int abort_reason,
int *need_rst)
{
switch (abort_reason) {
case CPL_ERR_BAD_SYN:
case CPL_ERR_CONN_RESET:
return csk->state > CTP_ESTABLISHED ?
-EPIPE : -ECONNRESET;
case CPL_ERR_XMIT_TIMEDOUT:
case CPL_ERR_PERSIST_TIMEDOUT:
case CPL_ERR_FINWAIT2_TIMEDOUT:
case CPL_ERR_KEEPALIVE_TIMEDOUT:
return -ETIMEDOUT;
default:
return -EIO;
}
}
static void do_abort_req_rss(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_abort_req_rss *req = (struct cpl_abort_req_rss *)skb->data;
unsigned int tid = GET_TID(req);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
int rst_status = CPL_ABORT_NO_RST;
csk = lookup_tid(t, tid);
if (unlikely(!csk)) {
pr_err("can't find connection for tid %u.\n", tid);
goto rel_skb;
}
pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n",
(&csk->saddr), (&csk->daddr),
csk, csk->state, csk->flags, csk->tid, req->status);
if (is_neg_adv(req->status))
goto rel_skb;
cxgbi_sock_get(csk);
spin_lock_bh(&csk->lock);
cxgbi_sock_clear_flag(csk, CTPF_ABORT_REQ_RCVD);
if (!cxgbi_sock_flag(csk, CTPF_TX_DATA_SENT)) {
send_tx_flowc_wr(csk);
cxgbi_sock_set_flag(csk, CTPF_TX_DATA_SENT);
}
cxgbi_sock_set_flag(csk, CTPF_ABORT_REQ_RCVD);
cxgbi_sock_set_state(csk, CTP_ABORTING);
send_abort_rpl(csk, rst_status);
if (!cxgbi_sock_flag(csk, CTPF_ABORT_RPL_PENDING)) {
csk->err = abort_status_to_errno(csk, req->status, &rst_status);
cxgbi_sock_closed(csk);
}
spin_unlock_bh(&csk->lock);
cxgbi_sock_put(csk);
rel_skb:
__kfree_skb(skb);
}
static void do_abort_rpl_rss(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_abort_rpl_rss *rpl = (struct cpl_abort_rpl_rss *)skb->data;
unsigned int tid = GET_TID(rpl);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
csk = lookup_tid(t, tid);
if (!csk)
goto rel_skb;
pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u, status %u.\n",
(&csk->saddr), (&csk->daddr), csk,
csk->state, csk->flags, csk->tid, rpl->status);
if (rpl->status == CPL_ERR_ABORT_FAILED)
goto rel_skb;
cxgbi_sock_rcv_abort_rpl(csk);
rel_skb:
__kfree_skb(skb);
}
static void do_rx_data(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_rx_data *cpl = (struct cpl_rx_data *)skb->data;
unsigned int tid = GET_TID(cpl);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
csk = lookup_tid(t, tid);
if (!csk) {
pr_err("can't find connection for tid %u.\n", tid);
} else {
/* not expecting this, reset the connection. */
pr_err("csk 0x%p, tid %u, rcv cpl_rx_data.\n", csk, tid);
spin_lock_bh(&csk->lock);
send_abort_req(csk);
spin_unlock_bh(&csk->lock);
}
__kfree_skb(skb);
}
static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_iscsi_hdr *cpl = (struct cpl_iscsi_hdr *)skb->data;
unsigned short pdu_len_ddp = be16_to_cpu(cpl->pdu_len_ddp);
unsigned int tid = GET_TID(cpl);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
csk = lookup_tid(t, tid);
if (unlikely(!csk)) {
pr_err("can't find conn. for tid %u.\n", tid);
goto rel_skb;
}
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, tid %u, skb 0x%p,%u, 0x%x.\n",
csk, csk->state, csk->flags, csk->tid, skb, skb->len,
pdu_len_ddp);
spin_lock_bh(&csk->lock);
if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) {
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u, bad state.\n",
csk, csk->state, csk->flags, csk->tid);
if (csk->state != CTP_ABORTING)
goto abort_conn;
else
goto discard;
}
cxgbi_skcb_tcp_seq(skb) = ntohl(cpl->seq);
cxgbi_skcb_flags(skb) = 0;
skb_reset_transport_header(skb);
__skb_pull(skb, sizeof(*cpl));
__pskb_trim(skb, ntohs(cpl->len));
if (!csk->skb_ulp_lhdr) {
unsigned char *bhs;
unsigned int hlen, dlen, plen;
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, tid %u, skb 0x%p header.\n",
csk, csk->state, csk->flags, csk->tid, skb);
csk->skb_ulp_lhdr = skb;
cxgbi_skcb_set_flag(skb, SKCBF_RX_HDR);
if ((CHELSIO_CHIP_VERSION(lldi->adapter_type) <= CHELSIO_T5) &&
(cxgbi_skcb_tcp_seq(skb) != csk->rcv_nxt)) {
pr_info("tid %u, CPL_ISCSI_HDR, bad seq, 0x%x/0x%x.\n",
csk->tid, cxgbi_skcb_tcp_seq(skb),
csk->rcv_nxt);
goto abort_conn;
}
bhs = skb->data;
hlen = ntohs(cpl->len);
dlen = ntohl(*(unsigned int *)(bhs + 4)) & 0xFFFFFF;
plen = ISCSI_PDU_LEN_G(pdu_len_ddp);
if (is_t4(lldi->adapter_type))
plen -= 40;
if ((hlen + dlen) != plen) {
pr_info("tid 0x%x, CPL_ISCSI_HDR, pdu len "
"mismatch %u != %u + %u, seq 0x%x.\n",
csk->tid, plen, hlen, dlen,
cxgbi_skcb_tcp_seq(skb));
goto abort_conn;
}
cxgbi_skcb_rx_pdulen(skb) = (hlen + dlen + 3) & (~0x3);
if (dlen)
cxgbi_skcb_rx_pdulen(skb) += csk->dcrc_len;
csk->rcv_nxt += cxgbi_skcb_rx_pdulen(skb);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, skb 0x%p, 0x%x,%u+%u,0x%x,0x%x.\n",
csk, skb, *bhs, hlen, dlen,
ntohl(*((unsigned int *)(bhs + 16))),
ntohl(*((unsigned int *)(bhs + 24))));
} else {
struct sk_buff *lskb = csk->skb_ulp_lhdr;
cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, skb 0x%p data, 0x%p.\n",
csk, csk->state, csk->flags, skb, lskb);
}
__skb_queue_tail(&csk->receive_queue, skb);
spin_unlock_bh(&csk->lock);
return;
abort_conn:
send_abort_req(csk);
discard:
spin_unlock_bh(&csk->lock);
rel_skb:
__kfree_skb(skb);
}
static void do_rx_iscsi_data(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_iscsi_hdr *cpl = (struct cpl_iscsi_hdr *)skb->data;
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
struct sk_buff *lskb;
u32 tid = GET_TID(cpl);
u16 pdu_len_ddp = be16_to_cpu(cpl->pdu_len_ddp);
csk = lookup_tid(t, tid);
if (unlikely(!csk)) {
pr_err("can't find conn. for tid %u.\n", tid);
goto rel_skb;
}
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, tid %u, skb 0x%p,%u, 0x%x.\n",
csk, csk->state, csk->flags, csk->tid, skb,
skb->len, pdu_len_ddp);
spin_lock_bh(&csk->lock);
if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) {
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u, bad state.\n",
csk, csk->state, csk->flags, csk->tid);
if (csk->state != CTP_ABORTING)
goto abort_conn;
else
goto discard;
}
cxgbi_skcb_tcp_seq(skb) = be32_to_cpu(cpl->seq);
cxgbi_skcb_flags(skb) = 0;
skb_reset_transport_header(skb);
__skb_pull(skb, sizeof(*cpl));
__pskb_trim(skb, ntohs(cpl->len));
if (!csk->skb_ulp_lhdr)
csk->skb_ulp_lhdr = skb;
lskb = csk->skb_ulp_lhdr;
cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, skb 0x%p data, 0x%p.\n",
csk, csk->state, csk->flags, skb, lskb);
__skb_queue_tail(&csk->receive_queue, skb);
spin_unlock_bh(&csk->lock);
return;
abort_conn:
send_abort_req(csk);
discard:
spin_unlock_bh(&csk->lock);
rel_skb:
__kfree_skb(skb);
}
static void
cxgb4i_process_ddpvld(struct cxgbi_sock *csk,
struct sk_buff *skb, u32 ddpvld)
{
if (ddpvld & (1 << CPL_RX_DDP_STATUS_HCRC_SHIFT)) {
pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, hcrc bad 0x%lx.\n",
csk, skb, ddpvld, cxgbi_skcb_flags(skb));
cxgbi_skcb_set_flag(skb, SKCBF_RX_HCRC_ERR);
}
if (ddpvld & (1 << CPL_RX_DDP_STATUS_DCRC_SHIFT)) {
pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, dcrc bad 0x%lx.\n",
csk, skb, ddpvld, cxgbi_skcb_flags(skb));
cxgbi_skcb_set_flag(skb, SKCBF_RX_DCRC_ERR);
}
if (ddpvld & (1 << CPL_RX_DDP_STATUS_PAD_SHIFT)) {
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, lhdr 0x%p, status 0x%x, pad bad.\n",
csk, skb, ddpvld);
cxgbi_skcb_set_flag(skb, SKCBF_RX_PAD_ERR);
}
if ((ddpvld & (1 << CPL_RX_DDP_STATUS_DDP_SHIFT)) &&
!cxgbi_skcb_test_flag(skb, SKCBF_RX_DATA)) {
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, lhdr 0x%p, 0x%x, data ddp'ed.\n",
csk, skb, ddpvld);
cxgbi_skcb_set_flag(skb, SKCBF_RX_DATA_DDPD);
}
}
static void do_rx_data_ddp(struct cxgbi_device *cdev,
struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct sk_buff *lskb;
struct cpl_rx_data_ddp *rpl = (struct cpl_rx_data_ddp *)skb->data;
unsigned int tid = GET_TID(rpl);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
u32 ddpvld = be32_to_cpu(rpl->ddpvld);
csk = lookup_tid(t, tid);
if (unlikely(!csk)) {
pr_err("can't find connection for tid %u.\n", tid);
goto rel_skb;
}
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, skb 0x%p,0x%x, lhdr 0x%p.\n",
csk, csk->state, csk->flags, skb, ddpvld, csk->skb_ulp_lhdr);
spin_lock_bh(&csk->lock);
if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) {
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u, bad state.\n",
csk, csk->state, csk->flags, csk->tid);
if (csk->state != CTP_ABORTING)
goto abort_conn;
else
goto discard;
}
if (!csk->skb_ulp_lhdr) {
pr_err("tid 0x%x, rcv RX_DATA_DDP w/o pdu bhs.\n", csk->tid);
goto abort_conn;
}
lskb = csk->skb_ulp_lhdr;
csk->skb_ulp_lhdr = NULL;
cxgbi_skcb_rx_ddigest(lskb) = ntohl(rpl->ulp_crc);
if (ntohs(rpl->len) != cxgbi_skcb_rx_pdulen(lskb))
pr_info("tid 0x%x, RX_DATA_DDP pdulen %u != %u.\n",
csk->tid, ntohs(rpl->len), cxgbi_skcb_rx_pdulen(lskb));
cxgb4i_process_ddpvld(csk, lskb, ddpvld);
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, lskb 0x%p, f 0x%lx.\n",
csk, lskb, cxgbi_skcb_flags(lskb));
cxgbi_skcb_set_flag(lskb, SKCBF_RX_STATUS);
cxgbi_conn_pdu_ready(csk);
spin_unlock_bh(&csk->lock);
goto rel_skb;
abort_conn:
send_abort_req(csk);
discard:
spin_unlock_bh(&csk->lock);
rel_skb:
__kfree_skb(skb);
}
static void
do_rx_iscsi_cmp(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_rx_iscsi_cmp *rpl = (struct cpl_rx_iscsi_cmp *)skb->data;
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
struct sk_buff *data_skb = NULL;
u32 tid = GET_TID(rpl);
u32 ddpvld = be32_to_cpu(rpl->ddpvld);
u32 seq = be32_to_cpu(rpl->seq);
u16 pdu_len_ddp = be16_to_cpu(rpl->pdu_len_ddp);
csk = lookup_tid(t, tid);
if (unlikely(!csk)) {
pr_err("can't find connection for tid %u.\n", tid);
goto rel_skb;
}
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, skb 0x%p,0x%x, lhdr 0x%p, len %u, "
"pdu_len_ddp %u, status %u.\n",
csk, csk->state, csk->flags, skb, ddpvld, csk->skb_ulp_lhdr,
ntohs(rpl->len), pdu_len_ddp, rpl->status);
spin_lock_bh(&csk->lock);
if (unlikely(csk->state >= CTP_PASSIVE_CLOSE)) {
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u, bad state.\n",
csk, csk->state, csk->flags, csk->tid);
if (csk->state != CTP_ABORTING)
goto abort_conn;
else
goto discard;
}
cxgbi_skcb_tcp_seq(skb) = seq;
cxgbi_skcb_flags(skb) = 0;
cxgbi_skcb_rx_pdulen(skb) = 0;
skb_reset_transport_header(skb);
__skb_pull(skb, sizeof(*rpl));
__pskb_trim(skb, be16_to_cpu(rpl->len));
csk->rcv_nxt = seq + pdu_len_ddp;
if (csk->skb_ulp_lhdr) {
data_skb = skb_peek(&csk->receive_queue);
if (!data_skb ||
!cxgbi_skcb_test_flag(data_skb, SKCBF_RX_DATA)) {
pr_err("Error! freelist data not found 0x%p, tid %u\n",
data_skb, tid);
goto abort_conn;
}
__skb_unlink(data_skb, &csk->receive_queue);
cxgbi_skcb_set_flag(skb, SKCBF_RX_DATA);
__skb_queue_tail(&csk->receive_queue, skb);
__skb_queue_tail(&csk->receive_queue, data_skb);
} else {
__skb_queue_tail(&csk->receive_queue, skb);
}
csk->skb_ulp_lhdr = NULL;
cxgbi_skcb_set_flag(skb, SKCBF_RX_HDR);
cxgbi_skcb_set_flag(skb, SKCBF_RX_STATUS);
cxgbi_skcb_set_flag(skb, SKCBF_RX_ISCSI_COMPL);
cxgbi_skcb_rx_ddigest(skb) = be32_to_cpu(rpl->ulp_crc);
cxgb4i_process_ddpvld(csk, skb, ddpvld);
log_debug(1 << CXGBI_DBG_PDU_RX, "csk 0x%p, skb 0x%p, f 0x%lx.\n",
csk, skb, cxgbi_skcb_flags(skb));
cxgbi_conn_pdu_ready(csk);
spin_unlock_bh(&csk->lock);
return;
abort_conn:
send_abort_req(csk);
discard:
spin_unlock_bh(&csk->lock);
rel_skb:
__kfree_skb(skb);
}
static void do_fw4_ack(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cxgbi_sock *csk;
struct cpl_fw4_ack *rpl = (struct cpl_fw4_ack *)skb->data;
unsigned int tid = GET_TID(rpl);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
csk = lookup_tid(t, tid);
if (unlikely(!csk))
pr_err("can't find connection for tid %u.\n", tid);
else {
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u.\n",
csk, csk->state, csk->flags, csk->tid);
cxgbi_sock_rcv_wr_ack(csk, rpl->credits, ntohl(rpl->snd_una),
rpl->seq_vld);
}
__kfree_skb(skb);
}
static void do_set_tcb_rpl(struct cxgbi_device *cdev, struct sk_buff *skb)
{
struct cpl_set_tcb_rpl *rpl = (struct cpl_set_tcb_rpl *)skb->data;
unsigned int tid = GET_TID(rpl);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
struct cxgbi_sock *csk;
csk = lookup_tid(t, tid);
if (!csk) {
pr_err("can't find conn. for tid %u.\n", tid);
return;
}
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,%lx,%u, status 0x%x.\n",
csk, csk->state, csk->flags, csk->tid, rpl->status);
if (rpl->status != CPL_ERR_NONE) {
pr_err("csk 0x%p,%u, SET_TCB_RPL status %u.\n",
csk, tid, rpl->status);
csk->err = -EINVAL;
}
complete(&csk->cmpl);
__kfree_skb(skb);
}
static int alloc_cpls(struct cxgbi_sock *csk)
{
csk->cpl_close = alloc_wr(sizeof(struct cpl_close_con_req),
0, GFP_KERNEL);
if (!csk->cpl_close)
return -ENOMEM;
csk->cpl_abort_req = alloc_wr(sizeof(struct cpl_abort_req),
0, GFP_KERNEL);
if (!csk->cpl_abort_req)
goto free_cpls;
csk->cpl_abort_rpl = alloc_wr(sizeof(struct cpl_abort_rpl),
0, GFP_KERNEL);
if (!csk->cpl_abort_rpl)
goto free_cpls;
return 0;
free_cpls:
cxgbi_sock_free_cpl_skbs(csk);
return -ENOMEM;
}
static inline void l2t_put(struct cxgbi_sock *csk)
{
if (csk->l2t) {
cxgb4_l2t_release(csk->l2t);
csk->l2t = NULL;
cxgbi_sock_put(csk);
}
}
static void release_offload_resources(struct cxgbi_sock *csk)
{
struct cxgb4_lld_info *lldi;
#if IS_ENABLED(CONFIG_IPV6)
struct net_device *ndev = csk->cdev->ports[csk->port_id];
#endif
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u.\n",
csk, csk->state, csk->flags, csk->tid);
cxgbi_sock_free_cpl_skbs(csk);
cxgbi_sock_purge_write_queue(csk);
if (csk->wr_cred != csk->wr_max_cred) {
cxgbi_sock_purge_wr_queue(csk);
cxgbi_sock_reset_wr_list(csk);
}
l2t_put(csk);
#if IS_ENABLED(CONFIG_IPV6)
if (csk->csk_family == AF_INET6)
cxgb4_clip_release(ndev,
(const u32 *)&csk->saddr6.sin6_addr, 1);
#endif
if (cxgbi_sock_flag(csk, CTPF_HAS_ATID))
free_atid(csk);
else if (cxgbi_sock_flag(csk, CTPF_HAS_TID)) {
lldi = cxgbi_cdev_priv(csk->cdev);
cxgb4_remove_tid(lldi->tids, 0, csk->tid,
csk->csk_family);
cxgbi_sock_clear_flag(csk, CTPF_HAS_TID);
cxgbi_sock_put(csk);
}
csk->dst = NULL;
}
#ifdef CONFIG_CHELSIO_T4_DCB
static inline u8 get_iscsi_dcb_state(struct net_device *ndev)
{
return ndev->dcbnl_ops->getstate(ndev);
}
static int select_priority(int pri_mask)
{
if (!pri_mask)
return 0;
return (ffs(pri_mask) - 1);
}
static u8 get_iscsi_dcb_priority(struct net_device *ndev)
{
int rv;
u8 caps;
struct dcb_app iscsi_dcb_app = {
.protocol = 3260
};
rv = (int)ndev->dcbnl_ops->getcap(ndev, DCB_CAP_ATTR_DCBX, &caps);
if (rv)
return 0;
if (caps & DCB_CAP_DCBX_VER_IEEE) {
iscsi_dcb_app.selector = IEEE_8021QAZ_APP_SEL_STREAM;
rv = dcb_ieee_getapp_mask(ndev, &iscsi_dcb_app);
if (!rv) {
iscsi_dcb_app.selector = IEEE_8021QAZ_APP_SEL_ANY;
rv = dcb_ieee_getapp_mask(ndev, &iscsi_dcb_app);
}
} else if (caps & DCB_CAP_DCBX_VER_CEE) {
iscsi_dcb_app.selector = DCB_APP_IDTYPE_PORTNUM;
rv = dcb_getapp(ndev, &iscsi_dcb_app);
}
log_debug(1 << CXGBI_DBG_ISCSI,
"iSCSI priority is set to %u\n", select_priority(rv));
return select_priority(rv);
}
#endif
static int init_act_open(struct cxgbi_sock *csk)
{
struct cxgbi_device *cdev = csk->cdev;
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct net_device *ndev = cdev->ports[csk->port_id];
struct sk_buff *skb = NULL;
struct neighbour *n = NULL;
void *daddr;
unsigned int step;
unsigned int rxq_idx;
unsigned int size, size6;
unsigned int linkspeed;
unsigned int rcv_winf, snd_winf;
#ifdef CONFIG_CHELSIO_T4_DCB
u8 priority = 0;
#endif
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx,%u.\n",
csk, csk->state, csk->flags, csk->tid);
if (csk->csk_family == AF_INET)
daddr = &csk->daddr.sin_addr.s_addr;
#if IS_ENABLED(CONFIG_IPV6)
else if (csk->csk_family == AF_INET6)
daddr = &csk->daddr6.sin6_addr;
#endif
else {
pr_err("address family 0x%x not supported\n", csk->csk_family);
goto rel_resource;
}
n = dst_neigh_lookup(csk->dst, daddr);
if (!n) {
pr_err("%s, can't get neighbour of csk->dst.\n", ndev->name);
goto rel_resource;
}
if (!(n->nud_state & NUD_VALID))
neigh_event_send(n, NULL);
csk->atid = cxgb4_alloc_atid(lldi->tids, csk);
if (csk->atid < 0) {
pr_err("%s, NO atid available.\n", ndev->name);
goto rel_resource_without_clip;
}
cxgbi_sock_set_flag(csk, CTPF_HAS_ATID);
cxgbi_sock_get(csk);
#ifdef CONFIG_CHELSIO_T4_DCB
if (get_iscsi_dcb_state(ndev))
priority = get_iscsi_dcb_priority(ndev);
csk->dcb_priority = priority;
csk->l2t = cxgb4_l2t_get(lldi->l2t, n, ndev, priority);
#else
csk->l2t = cxgb4_l2t_get(lldi->l2t, n, ndev, 0);
#endif
if (!csk->l2t) {
pr_err("%s, cannot alloc l2t.\n", ndev->name);
goto rel_resource_without_clip;
}
cxgbi_sock_get(csk);
#if IS_ENABLED(CONFIG_IPV6)
if (csk->csk_family == AF_INET6)
cxgb4_clip_get(ndev, (const u32 *)&csk->saddr6.sin6_addr, 1);
#endif
if (is_t4(lldi->adapter_type)) {
size = sizeof(struct cpl_act_open_req);
size6 = sizeof(struct cpl_act_open_req6);
} else if (is_t5(lldi->adapter_type)) {
size = sizeof(struct cpl_t5_act_open_req);
size6 = sizeof(struct cpl_t5_act_open_req6);
} else {
size = sizeof(struct cpl_t6_act_open_req);
size6 = sizeof(struct cpl_t6_act_open_req6);
}
if (csk->csk_family == AF_INET)
skb = alloc_wr(size, 0, GFP_NOIO);
#if IS_ENABLED(CONFIG_IPV6)
else
skb = alloc_wr(size6, 0, GFP_NOIO);
#endif
if (!skb)
goto rel_resource;
skb->sk = (struct sock *)csk;
t4_set_arp_err_handler(skb, csk, cxgbi_sock_act_open_req_arp_failure);
if (!csk->mtu)
csk->mtu = dst_mtu(csk->dst);
cxgb4_best_mtu(lldi->mtus, csk->mtu, &csk->mss_idx);
csk->tx_chan = cxgb4_port_chan(ndev);
csk->smac_idx = ((struct port_info *)netdev_priv(ndev))->smt_idx;
step = lldi->ntxq / lldi->nchan;
csk->txq_idx = cxgb4_port_idx(ndev) * step;
step = lldi->nrxq / lldi->nchan;
rxq_idx = (cxgb4_port_idx(ndev) * step) + (cdev->rxq_idx_cntr % step);
cdev->rxq_idx_cntr++;
csk->rss_qid = lldi->rxq_ids[rxq_idx];
linkspeed = ((struct port_info *)netdev_priv(ndev))->link_cfg.speed;
csk->snd_win = cxgb4i_snd_win;
csk->rcv_win = cxgb4i_rcv_win;
if (cxgb4i_rcv_win <= 0) {
csk->rcv_win = CXGB4I_DEFAULT_10G_RCV_WIN;
rcv_winf = linkspeed / SPEED_10000;
if (rcv_winf)
csk->rcv_win *= rcv_winf;
}
if (cxgb4i_snd_win <= 0) {
csk->snd_win = CXGB4I_DEFAULT_10G_SND_WIN;
snd_winf = linkspeed / SPEED_10000;
if (snd_winf)
csk->snd_win *= snd_winf;
}
csk->wr_cred = lldi->wr_cred -
DIV_ROUND_UP(sizeof(struct cpl_abort_req), 16);
csk->wr_max_cred = csk->wr_cred;
csk->wr_una_cred = 0;
cxgbi_sock_reset_wr_list(csk);
csk->err = 0;
pr_info_ipaddr("csk 0x%p,%u,0x%lx,%u,%u,%u, mtu %u,%u, smac %u.\n",
(&csk->saddr), (&csk->daddr), csk, csk->state,
csk->flags, csk->tx_chan, csk->txq_idx, csk->rss_qid,
csk->mtu, csk->mss_idx, csk->smac_idx);
/* must wait for either a act_open_rpl or act_open_establish */
if (!try_module_get(cdev->owner)) {
pr_err("%s, try_module_get failed.\n", ndev->name);
goto rel_resource;
}
cxgbi_sock_set_state(csk, CTP_ACTIVE_OPEN);
if (csk->csk_family == AF_INET)
send_act_open_req(csk, skb, csk->l2t);
#if IS_ENABLED(CONFIG_IPV6)
else
send_act_open_req6(csk, skb, csk->l2t);
#endif
neigh_release(n);
return 0;
rel_resource:
#if IS_ENABLED(CONFIG_IPV6)
if (csk->csk_family == AF_INET6)
cxgb4_clip_release(ndev,
(const u32 *)&csk->saddr6.sin6_addr, 1);
#endif
rel_resource_without_clip:
if (n)
neigh_release(n);
if (skb)
__kfree_skb(skb);
return -EINVAL;
}
static cxgb4i_cplhandler_func cxgb4i_cplhandlers[NUM_CPL_CMDS] = {
[CPL_ACT_ESTABLISH] = do_act_establish,
[CPL_ACT_OPEN_RPL] = do_act_open_rpl,
[CPL_PEER_CLOSE] = do_peer_close,
[CPL_ABORT_REQ_RSS] = do_abort_req_rss,
[CPL_ABORT_RPL_RSS] = do_abort_rpl_rss,
[CPL_CLOSE_CON_RPL] = do_close_con_rpl,
[CPL_FW4_ACK] = do_fw4_ack,
[CPL_ISCSI_HDR] = do_rx_iscsi_hdr,
[CPL_ISCSI_DATA] = do_rx_iscsi_data,
[CPL_SET_TCB_RPL] = do_set_tcb_rpl,
[CPL_RX_DATA_DDP] = do_rx_data_ddp,
[CPL_RX_ISCSI_DDP] = do_rx_data_ddp,
[CPL_RX_ISCSI_CMP] = do_rx_iscsi_cmp,
[CPL_RX_DATA] = do_rx_data,
};
static int cxgb4i_ofld_init(struct cxgbi_device *cdev)
{
int rc;
if (cxgb4i_max_connect > CXGB4I_MAX_CONN)
cxgb4i_max_connect = CXGB4I_MAX_CONN;
rc = cxgbi_device_portmap_create(cdev, cxgb4i_sport_base,
cxgb4i_max_connect);
if (rc < 0)
return rc;
cdev->csk_release_offload_resources = release_offload_resources;
cdev->csk_push_tx_frames = push_tx_frames;
cdev->csk_send_abort_req = send_abort_req;
cdev->csk_send_close_req = send_close_req;
cdev->csk_send_rx_credits = send_rx_credits;
cdev->csk_alloc_cpls = alloc_cpls;
cdev->csk_init_act_open = init_act_open;
pr_info("cdev 0x%p, offload up, added.\n", cdev);
return 0;
}
static inline void
ulp_mem_io_set_hdr(struct cxgbi_device *cdev,
struct ulp_mem_io *req,
unsigned int wr_len, unsigned int dlen,
unsigned int pm_addr,
int tid)
{
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct ulptx_idata *idata = (struct ulptx_idata *)(req + 1);
INIT_ULPTX_WR(req, wr_len, 0, tid);
req->wr.wr_hi = htonl(FW_WR_OP_V(FW_ULPTX_WR) |
FW_WR_ATOMIC_V(0));
req->cmd = htonl(ULPTX_CMD_V(ULP_TX_MEM_WRITE) |
ULP_MEMIO_ORDER_V(is_t4(lldi->adapter_type)) |
T5_ULP_MEMIO_IMM_V(!is_t4(lldi->adapter_type)));
req->dlen = htonl(ULP_MEMIO_DATA_LEN_V(dlen >> 5));
req->lock_addr = htonl(ULP_MEMIO_ADDR_V(pm_addr >> 5));
req->len16 = htonl(DIV_ROUND_UP(wr_len - sizeof(req->wr), 16));
idata->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_IMM));
idata->len = htonl(dlen);
}
static struct sk_buff *
ddp_ppod_init_idata(struct cxgbi_device *cdev,
struct cxgbi_ppm *ppm,
unsigned int idx, unsigned int npods,
unsigned int tid)
{
unsigned int pm_addr = (idx << PPOD_SIZE_SHIFT) + ppm->llimit;
unsigned int dlen = npods << PPOD_SIZE_SHIFT;
unsigned int wr_len = roundup(sizeof(struct ulp_mem_io) +
sizeof(struct ulptx_idata) + dlen, 16);
struct sk_buff *skb = alloc_wr(wr_len, 0, GFP_ATOMIC);
if (!skb) {
pr_err("%s: %s idx %u, npods %u, OOM.\n",
__func__, ppm->ndev->name, idx, npods);
return NULL;
}
ulp_mem_io_set_hdr(cdev, (struct ulp_mem_io *)skb->head, wr_len, dlen,
pm_addr, tid);
return skb;
}
static int ddp_ppod_write_idata(struct cxgbi_ppm *ppm, struct cxgbi_sock *csk,
struct cxgbi_task_tag_info *ttinfo,
unsigned int idx, unsigned int npods,
struct scatterlist **sg_pp,
unsigned int *sg_off)
{
struct cxgbi_device *cdev = csk->cdev;
struct sk_buff *skb = ddp_ppod_init_idata(cdev, ppm, idx, npods,
csk->tid);
struct ulp_mem_io *req;
struct ulptx_idata *idata;
struct cxgbi_pagepod *ppod;
int i;
if (!skb)
return -ENOMEM;
req = (struct ulp_mem_io *)skb->head;
idata = (struct ulptx_idata *)(req + 1);
ppod = (struct cxgbi_pagepod *)(idata + 1);
for (i = 0; i < npods; i++, ppod++)
cxgbi_ddp_set_one_ppod(ppod, ttinfo, sg_pp, sg_off);
cxgbi_skcb_set_flag(skb, SKCBF_TX_MEM_WRITE);
cxgbi_skcb_set_flag(skb, SKCBF_TX_FLAG_COMPL);
set_wr_txq(skb, CPL_PRIORITY_DATA, csk->port_id);
spin_lock_bh(&csk->lock);
cxgbi_sock_skb_entail(csk, skb);
spin_unlock_bh(&csk->lock);
return 0;
}
static int ddp_set_map(struct cxgbi_ppm *ppm, struct cxgbi_sock *csk,
struct cxgbi_task_tag_info *ttinfo)
{
unsigned int pidx = ttinfo->idx;
unsigned int npods = ttinfo->npods;
unsigned int i, cnt;
int err = 0;
struct scatterlist *sg = ttinfo->sgl;
unsigned int offset = 0;
ttinfo->cid = csk->port_id;
for (i = 0; i < npods; i += cnt, pidx += cnt) {
cnt = npods - i;
if (cnt > ULPMEM_IDATA_MAX_NPPODS)
cnt = ULPMEM_IDATA_MAX_NPPODS;
err = ddp_ppod_write_idata(ppm, csk, ttinfo, pidx, cnt,
&sg, &offset);
if (err < 0)
break;
}
return err;
}
static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk, unsigned int tid,
int pg_idx)
{
struct sk_buff *skb;
struct cpl_set_tcb_field *req;
if (!pg_idx || pg_idx >= DDP_PGIDX_MAX)
return 0;
skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL);
if (!skb)
return -ENOMEM;
/* set up ulp page size */
req = (struct cpl_set_tcb_field *)skb->head;
INIT_TP_WR(req, csk->tid);
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, csk->tid));
req->reply_ctrl = htons(NO_REPLY_V(0) | QUEUENO_V(csk->rss_qid));
req->word_cookie = htons(0);
req->mask = cpu_to_be64(0x3 << 8);
req->val = cpu_to_be64(pg_idx << 8);
set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p, tid 0x%x, pg_idx %u.\n", csk, csk->tid, pg_idx);
reinit_completion(&csk->cmpl);
cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
wait_for_completion(&csk->cmpl);
return csk->err;
}
static int ddp_setup_conn_digest(struct cxgbi_sock *csk, unsigned int tid,
int hcrc, int dcrc)
{
struct sk_buff *skb;
struct cpl_set_tcb_field *req;
if (!hcrc && !dcrc)
return 0;
skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL);
if (!skb)
return -ENOMEM;
csk->hcrc_len = (hcrc ? 4 : 0);
csk->dcrc_len = (dcrc ? 4 : 0);
/* set up ulp submode */
req = (struct cpl_set_tcb_field *)skb->head;
INIT_TP_WR(req, tid);
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid));
req->reply_ctrl = htons(NO_REPLY_V(0) | QUEUENO_V(csk->rss_qid));
req->word_cookie = htons(0);
req->mask = cpu_to_be64(0x3 << 4);
req->val = cpu_to_be64(((hcrc ? ULP_CRC_HEADER : 0) |
(dcrc ? ULP_CRC_DATA : 0)) << 4);
set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p, tid 0x%x, crc %d,%d.\n", csk, csk->tid, hcrc, dcrc);
reinit_completion(&csk->cmpl);
cxgb4_ofld_send(csk->cdev->ports[csk->port_id], skb);
wait_for_completion(&csk->cmpl);
return csk->err;
}
static struct cxgbi_ppm *cdev2ppm(struct cxgbi_device *cdev)
{
return (struct cxgbi_ppm *)(*((struct cxgb4_lld_info *)
(cxgbi_cdev_priv(cdev)))->iscsi_ppm);
}
static int cxgb4i_ddp_init(struct cxgbi_device *cdev)
{
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct net_device *ndev = cdev->ports[0];
struct cxgbi_tag_format tformat;
int i, err;
if (!lldi->vr->iscsi.size) {
pr_warn("%s, iscsi NOT enabled, check config!\n", ndev->name);
return -EACCES;
}
cdev->flags |= CXGBI_FLAG_USE_PPOD_OFLDQ;
memset(&tformat, 0, sizeof(struct cxgbi_tag_format));
for (i = 0; i < 4; i++)
tformat.pgsz_order[i] = (lldi->iscsi_pgsz_order >> (i << 3))
& 0xF;
cxgbi_tagmask_check(lldi->iscsi_tagmask, &tformat);
pr_info("iscsi_edram.start 0x%x iscsi_edram.size 0x%x",
lldi->vr->ppod_edram.start, lldi->vr->ppod_edram.size);
err = cxgbi_ddp_ppm_setup(lldi->iscsi_ppm, cdev, &tformat,
lldi->vr->iscsi.size, lldi->iscsi_llimit,
lldi->vr->iscsi.start, 2,
lldi->vr->ppod_edram.start,
lldi->vr->ppod_edram.size);
if (err < 0)
return err;
cdev->csk_ddp_setup_digest = ddp_setup_conn_digest;
cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx;
cdev->csk_ddp_set_map = ddp_set_map;
cdev->tx_max_size = min_t(unsigned int, ULP2_MAX_PDU_PAYLOAD,
lldi->iscsi_iolen - ISCSI_PDU_NONPAYLOAD_LEN);
cdev->rx_max_size = min_t(unsigned int, ULP2_MAX_PDU_PAYLOAD,
lldi->iscsi_iolen - ISCSI_PDU_NONPAYLOAD_LEN);
cdev->cdev2ppm = cdev2ppm;
return 0;
}
static bool is_memfree(struct adapter *adap)
{
u32 io;
io = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
if (is_t5(adap->params.chip)) {
if ((io & EXT_MEM0_ENABLE_F) || (io & EXT_MEM1_ENABLE_F))
return false;
} else if (io & EXT_MEM_ENABLE_F) {
return false;
}
return true;
}
static void *t4_uld_add(const struct cxgb4_lld_info *lldi)
{
struct cxgbi_device *cdev;
struct port_info *pi;
struct net_device *ndev;
struct adapter *adap;
struct tid_info *t;
u32 max_cmds = CXGB4I_SCSI_HOST_QDEPTH;
u32 max_conn = CXGBI_MAX_CONN;
int i, rc;
cdev = cxgbi_device_register(sizeof(*lldi), lldi->nports);
if (!cdev) {
pr_info("t4 device 0x%p, register failed.\n", lldi);
return NULL;
}
pr_info("0x%p,0x%x, ports %u,%s, chan %u, q %u,%u, wr %u.\n",
cdev, lldi->adapter_type, lldi->nports,
lldi->ports[0]->name, lldi->nchan, lldi->ntxq,
lldi->nrxq, lldi->wr_cred);
for (i = 0; i < lldi->nrxq; i++)
log_debug(1 << CXGBI_DBG_DEV,
"t4 0x%p, rxq id #%d: %u.\n",
cdev, i, lldi->rxq_ids[i]);
memcpy(cxgbi_cdev_priv(cdev), lldi, sizeof(*lldi));
cdev->flags = CXGBI_FLAG_DEV_T4;
cdev->pdev = lldi->pdev;
cdev->ports = lldi->ports;
cdev->nports = lldi->nports;
cdev->mtus = lldi->mtus;
cdev->nmtus = NMTUS;
cdev->rx_credit_thres = (CHELSIO_CHIP_VERSION(lldi->adapter_type) <=
CHELSIO_T5) ? cxgb4i_rx_credit_thres : 0;
cdev->skb_tx_rsvd = CXGB4I_TX_HEADER_LEN;
cdev->skb_rx_extra = sizeof(struct cpl_iscsi_hdr);
cdev->itp = &cxgb4i_iscsi_transport;
cdev->owner = THIS_MODULE;
cdev->pfvf = FW_PFVF_CMD_PFN_V(lldi->pf);
pr_info("cdev 0x%p,%s, pfvf %u.\n",
cdev, lldi->ports[0]->name, cdev->pfvf);
rc = cxgb4i_ddp_init(cdev);
if (rc) {
pr_info("t4 0x%p ddp init failed %d.\n", cdev, rc);
goto err_out;
}
ndev = cdev->ports[0];
adap = netdev2adap(ndev);
if (adap) {
t = &adap->tids;
if (t->ntids <= CXGBI_MAX_CONN)
max_conn = t->ntids;
if (is_memfree(adap)) {
cdev->flags |= CXGBI_FLAG_DEV_ISO_OFF;
max_cmds = CXGB4I_SCSI_HOST_QDEPTH >> 2;
pr_info("%s: 0x%p, tid %u, SO adapter.\n",
ndev->name, cdev, t->ntids);
}
} else {
pr_info("%s, 0x%p, NO adapter struct.\n", ndev->name, cdev);
}
/* ISO is enabled in T5/T6 firmware version >= 1.13.43.0 */
if (!is_t4(lldi->adapter_type) &&
(lldi->fw_vers >= 0x10d2b00) &&
!(cdev->flags & CXGBI_FLAG_DEV_ISO_OFF))
cdev->skb_iso_txhdr = sizeof(struct cpl_tx_data_iso);
rc = cxgb4i_ofld_init(cdev);
if (rc) {
pr_info("t4 0x%p ofld init failed.\n", cdev);
goto err_out;
}
cxgb4i_host_template.can_queue = max_cmds;
rc = cxgbi_hbas_add(cdev, CXGB4I_MAX_LUN, max_conn,
&cxgb4i_host_template, cxgb4i_stt);
if (rc)
goto err_out;
for (i = 0; i < cdev->nports; i++) {
pi = netdev_priv(lldi->ports[i]);
cdev->hbas[i]->port_id = pi->port_id;
}
return cdev;
err_out:
cxgbi_device_unregister(cdev);
return ERR_PTR(-ENOMEM);
}
#define RX_PULL_LEN 128
static int t4_uld_rx_handler(void *handle, const __be64 *rsp,
const struct pkt_gl *pgl)
{
const struct cpl_act_establish *rpl;
struct sk_buff *skb;
unsigned int opc;
struct cxgbi_device *cdev = handle;
if (pgl == NULL) {
unsigned int len = 64 - sizeof(struct rsp_ctrl) - 8;
skb = alloc_wr(len, 0, GFP_ATOMIC);
if (!skb)
goto nomem;
skb_copy_to_linear_data(skb, &rsp[1], len);
} else {
if (unlikely(*(u8 *)rsp != *(u8 *)pgl->va)) {
pr_info("? FL 0x%p,RSS%#llx,FL %#llx,len %u.\n",
pgl->va, be64_to_cpu(*rsp),
be64_to_cpu(*(u64 *)pgl->va),
pgl->tot_len);
return 0;
}
skb = cxgb4_pktgl_to_skb(pgl, RX_PULL_LEN, RX_PULL_LEN);
if (unlikely(!skb))
goto nomem;
}
rpl = (struct cpl_act_establish *)skb->data;
opc = rpl->ot.opcode;
log_debug(1 << CXGBI_DBG_TOE,
"cdev %p, opcode 0x%x(0x%x,0x%x), skb %p.\n",
cdev, opc, rpl->ot.opcode_tid, ntohl(rpl->ot.opcode_tid), skb);
if (opc >= ARRAY_SIZE(cxgb4i_cplhandlers) || !cxgb4i_cplhandlers[opc]) {
pr_err("No handler for opcode 0x%x.\n", opc);
__kfree_skb(skb);
} else
cxgb4i_cplhandlers[opc](cdev, skb);
return 0;
nomem:
log_debug(1 << CXGBI_DBG_TOE, "OOM bailing out.\n");
return 1;
}
static int t4_uld_state_change(void *handle, enum cxgb4_state state)
{
struct cxgbi_device *cdev = handle;
switch (state) {
case CXGB4_STATE_UP:
pr_info("cdev 0x%p, UP.\n", cdev);
break;
case CXGB4_STATE_START_RECOVERY:
pr_info("cdev 0x%p, RECOVERY.\n", cdev);
/* close all connections */
break;
case CXGB4_STATE_DOWN:
pr_info("cdev 0x%p, DOWN.\n", cdev);
break;
case CXGB4_STATE_DETACH:
pr_info("cdev 0x%p, DETACH.\n", cdev);
cxgbi_device_unregister(cdev);
break;
default:
pr_info("cdev 0x%p, unknown state %d.\n", cdev, state);
break;
}
return 0;
}
#ifdef CONFIG_CHELSIO_T4_DCB
static int
cxgb4_dcb_change_notify(struct notifier_block *self, unsigned long val,
void *data)
{
int i, port = 0xFF;
struct net_device *ndev;
struct cxgbi_device *cdev = NULL;
struct dcb_app_type *iscsi_app = data;
struct cxgbi_ports_map *pmap;
u8 priority;
if (iscsi_app->dcbx & DCB_CAP_DCBX_VER_IEEE) {
if ((iscsi_app->app.selector != IEEE_8021QAZ_APP_SEL_STREAM) &&
(iscsi_app->app.selector != IEEE_8021QAZ_APP_SEL_ANY))
return NOTIFY_DONE;
priority = iscsi_app->app.priority;
} else if (iscsi_app->dcbx & DCB_CAP_DCBX_VER_CEE) {
if (iscsi_app->app.selector != DCB_APP_IDTYPE_PORTNUM)
return NOTIFY_DONE;
if (!iscsi_app->app.priority)
return NOTIFY_DONE;
priority = ffs(iscsi_app->app.priority) - 1;
} else {
return NOTIFY_DONE;
}
if (iscsi_app->app.protocol != 3260)
return NOTIFY_DONE;
log_debug(1 << CXGBI_DBG_ISCSI, "iSCSI priority for ifid %d is %u\n",
iscsi_app->ifindex, priority);
ndev = dev_get_by_index(&init_net, iscsi_app->ifindex);
if (!ndev)
return NOTIFY_DONE;
cdev = cxgbi_device_find_by_netdev_rcu(ndev, &port);
dev_put(ndev);
if (!cdev)
return NOTIFY_DONE;
pmap = &cdev->pmap;
for (i = 0; i < pmap->used; i++) {
if (pmap->port_csk[i]) {
struct cxgbi_sock *csk = pmap->port_csk[i];
if (csk->dcb_priority != priority) {
iscsi_conn_failure(csk->user_data,
ISCSI_ERR_CONN_FAILED);
pr_info("Restarting iSCSI connection %p with "
"priority %u->%u.\n", csk,
csk->dcb_priority, priority);
}
}
}
return NOTIFY_OK;
}
#endif
static int __init cxgb4i_init_module(void)
{
int rc;
printk(KERN_INFO "%s", version);
rc = cxgbi_iscsi_init(&cxgb4i_iscsi_transport, &cxgb4i_stt);
if (rc < 0)
return rc;
cxgb4_register_uld(CXGB4_ULD_ISCSI, &cxgb4i_uld_info);
#ifdef CONFIG_CHELSIO_T4_DCB
pr_info("%s dcb enabled.\n", DRV_MODULE_NAME);
register_dcbevent_notifier(&cxgb4_dcb_change);
#endif
return 0;
}
static void __exit cxgb4i_exit_module(void)
{
#ifdef CONFIG_CHELSIO_T4_DCB
unregister_dcbevent_notifier(&cxgb4_dcb_change);
#endif
cxgb4_unregister_uld(CXGB4_ULD_ISCSI);
cxgbi_device_unregister_all(CXGBI_FLAG_DEV_T4);
cxgbi_iscsi_cleanup(&cxgb4i_iscsi_transport, &cxgb4i_stt);
}
module_init(cxgb4i_init_module);
module_exit(cxgb4i_exit_module);
|
linux-master
|
drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
|
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